Initial commit of Linux 3.2.26
diff --git a/drivers/input/Kconfig b/drivers/input/Kconfig
new file mode 100644
index 0000000..001b147
--- /dev/null
+++ b/drivers/input/Kconfig
@@ -0,0 +1,189 @@
+#
+# Input device configuration
+#
+
+menu "Input device support"
+ depends on !S390 && !UML
+
+config INPUT
+ tristate "Generic input layer (needed for keyboard, mouse, ...)" if EXPERT
+ default y
+ help
+ Say Y here if you have any input device (mouse, keyboard, tablet,
+ joystick, steering wheel ...) connected to your system and want
+ it to be available to applications. This includes standard PS/2
+ keyboard and mouse.
+
+ Say N here if you have a headless (no monitor, no keyboard) system.
+
+ More information is available: <file:Documentation/input/input.txt>
+
+ If unsure, say Y.
+
+ To compile this driver as a module, choose M here: the
+ module will be called input.
+
+if INPUT
+
+config INPUT_FF_MEMLESS
+ tristate "Support for memoryless force-feedback devices"
+ help
+ Say Y here if you have memoryless force-feedback input device
+ such as Logitech WingMan Force 3D, ThrustMaster FireStorm Dual
+ Power 2, or similar. You will also need to enable hardware-specific
+ driver.
+
+ If unsure, say N.
+
+ To compile this driver as a module, choose M here: the
+ module will be called ff-memless.
+
+config INPUT_POLLDEV
+ tristate "Polled input device skeleton"
+ help
+ Say Y here if you are using a driver for an input
+ device that periodically polls hardware state. This
+ option is only useful for out-of-tree drivers since
+ in-tree drivers select it automatically.
+
+ If unsure, say N.
+
+ To compile this driver as a module, choose M here: the
+ module will be called input-polldev.
+
+config INPUT_SPARSEKMAP
+ tristate "Sparse keymap support library"
+ help
+ Say Y here if you are using a driver for an input
+ device that uses sparse keymap. This option is only
+ useful for out-of-tree drivers since in-tree drivers
+ select it automatically.
+
+ If unsure, say N.
+
+ To compile this driver as a module, choose M here: the
+ module will be called sparse-keymap.
+
+comment "Userland interfaces"
+
+config INPUT_MOUSEDEV
+ tristate "Mouse interface" if EXPERT
+ default y
+ help
+ Say Y here if you want your mouse to be accessible as char devices
+ 13:32+ - /dev/input/mouseX and 13:63 - /dev/input/mice as an
+ emulated IntelliMouse Explorer PS/2 mouse. That way, all user space
+ programs (including SVGAlib, GPM and X) will be able to use your
+ mouse.
+
+ If unsure, say Y.
+
+ To compile this driver as a module, choose M here: the
+ module will be called mousedev.
+
+config INPUT_MOUSEDEV_PSAUX
+ bool "Provide legacy /dev/psaux device"
+ default y
+ depends on INPUT_MOUSEDEV
+ help
+ Say Y here if you want your mouse also be accessible as char device
+ 10:1 - /dev/psaux. The data available through /dev/psaux is exactly
+ the same as the data from /dev/input/mice.
+
+ If unsure, say Y.
+
+
+config INPUT_MOUSEDEV_SCREEN_X
+ int "Horizontal screen resolution"
+ depends on INPUT_MOUSEDEV
+ default "1024"
+ help
+ If you're using a digitizer, or a graphic tablet, and want to use
+ it as a mouse then the mousedev driver needs to know the X window
+ screen resolution you are using to correctly scale the data. If
+ you're not using a digitizer, this value is ignored.
+
+config INPUT_MOUSEDEV_SCREEN_Y
+ int "Vertical screen resolution"
+ depends on INPUT_MOUSEDEV
+ default "768"
+ help
+ If you're using a digitizer, or a graphic tablet, and want to use
+ it as a mouse then the mousedev driver needs to know the X window
+ screen resolution you are using to correctly scale the data. If
+ you're not using a digitizer, this value is ignored.
+
+config INPUT_JOYDEV
+ tristate "Joystick interface"
+ help
+ Say Y here if you want your joystick or gamepad to be
+ accessible as char device 13:0+ - /dev/input/jsX device.
+
+ If unsure, say Y.
+
+ More information is available: <file:Documentation/input/joystick.txt>
+
+ To compile this driver as a module, choose M here: the
+ module will be called joydev.
+
+config INPUT_EVDEV
+ tristate "Event interface"
+ help
+ Say Y here if you want your input device events be accessible
+ under char device 13:64+ - /dev/input/eventX in a generic way.
+
+ To compile this driver as a module, choose M here: the
+ module will be called evdev.
+
+config INPUT_EVBUG
+ tristate "Event debugging"
+ help
+ Say Y here if you have a problem with the input subsystem and
+ want all events (keypresses, mouse movements), to be output to
+ the system log. While this is useful for debugging, it's also
+ a security threat - your keypresses include your passwords, of
+ course.
+
+ If unsure, say N.
+
+ To compile this driver as a module, choose M here: the
+ module will be called evbug.
+
+config INPUT_APMPOWER
+ tristate "Input Power Event -> APM Bridge" if EXPERT
+ depends on INPUT && APM_EMULATION
+ help
+ Say Y here if you want suspend key events to trigger a user
+ requested suspend through APM. This is useful on embedded
+ systems where such behaviour is desired without userspace
+ interaction. If unsure, say N.
+
+ To compile this driver as a module, choose M here: the
+ module will be called apm-power.
+
+comment "Input Device Drivers"
+
+source "drivers/input/keyboard/Kconfig"
+
+source "drivers/input/mouse/Kconfig"
+
+source "drivers/input/joystick/Kconfig"
+
+source "drivers/input/tablet/Kconfig"
+
+source "drivers/input/touchscreen/Kconfig"
+
+source "drivers/input/misc/Kconfig"
+
+endif
+
+menu "Hardware I/O ports"
+
+source "drivers/input/serio/Kconfig"
+
+source "drivers/input/gameport/Kconfig"
+
+endmenu
+
+endmenu
+
diff --git a/drivers/input/Makefile b/drivers/input/Makefile
new file mode 100644
index 0000000..0c78949
--- /dev/null
+++ b/drivers/input/Makefile
@@ -0,0 +1,26 @@
+#
+# Makefile for the input core drivers.
+#
+
+# Each configuration option enables a list of files.
+
+obj-$(CONFIG_INPUT) += input-core.o
+input-core-y := input.o input-compat.o input-mt.o ff-core.o
+
+obj-$(CONFIG_INPUT_FF_MEMLESS) += ff-memless.o
+obj-$(CONFIG_INPUT_POLLDEV) += input-polldev.o
+obj-$(CONFIG_INPUT_SPARSEKMAP) += sparse-keymap.o
+
+obj-$(CONFIG_INPUT_MOUSEDEV) += mousedev.o
+obj-$(CONFIG_INPUT_JOYDEV) += joydev.o
+obj-$(CONFIG_INPUT_EVDEV) += evdev.o
+obj-$(CONFIG_INPUT_EVBUG) += evbug.o
+
+obj-$(CONFIG_INPUT_KEYBOARD) += keyboard/
+obj-$(CONFIG_INPUT_MOUSE) += mouse/
+obj-$(CONFIG_INPUT_JOYSTICK) += joystick/
+obj-$(CONFIG_INPUT_TABLET) += tablet/
+obj-$(CONFIG_INPUT_TOUCHSCREEN) += touchscreen/
+obj-$(CONFIG_INPUT_MISC) += misc/
+
+obj-$(CONFIG_INPUT_APMPOWER) += apm-power.o
diff --git a/drivers/input/apm-power.c b/drivers/input/apm-power.c
new file mode 100644
index 0000000..e90ee3d
--- /dev/null
+++ b/drivers/input/apm-power.c
@@ -0,0 +1,126 @@
+/*
+ * Input Power Event -> APM Bridge
+ *
+ * Copyright (c) 2007 Richard Purdie
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/module.h>
+#include <linux/input.h>
+#include <linux/slab.h>
+#include <linux/init.h>
+#include <linux/tty.h>
+#include <linux/delay.h>
+#include <linux/pm.h>
+#include <linux/apm-emulation.h>
+
+static void system_power_event(unsigned int keycode)
+{
+ switch (keycode) {
+ case KEY_SUSPEND:
+ apm_queue_event(APM_USER_SUSPEND);
+ pr_info("Requesting system suspend...\n");
+ break;
+ default:
+ break;
+ }
+}
+
+static void apmpower_event(struct input_handle *handle, unsigned int type,
+ unsigned int code, int value)
+{
+ /* only react on key down events */
+ if (value != 1)
+ return;
+
+ switch (type) {
+ case EV_PWR:
+ system_power_event(code);
+ break;
+
+ default:
+ break;
+ }
+}
+
+static int apmpower_connect(struct input_handler *handler,
+ struct input_dev *dev,
+ const struct input_device_id *id)
+{
+ struct input_handle *handle;
+ int error;
+
+ handle = kzalloc(sizeof(struct input_handle), GFP_KERNEL);
+ if (!handle)
+ return -ENOMEM;
+
+ handle->dev = dev;
+ handle->handler = handler;
+ handle->name = "apm-power";
+
+ error = input_register_handle(handle);
+ if (error) {
+ pr_err("Failed to register input power handler, error %d\n",
+ error);
+ kfree(handle);
+ return error;
+ }
+
+ error = input_open_device(handle);
+ if (error) {
+ pr_err("Failed to open input power device, error %d\n", error);
+ input_unregister_handle(handle);
+ kfree(handle);
+ return error;
+ }
+
+ return 0;
+}
+
+static void apmpower_disconnect(struct input_handle *handle)
+{
+ input_close_device(handle);
+ input_unregister_handle(handle);
+ kfree(handle);
+}
+
+static const struct input_device_id apmpower_ids[] = {
+ {
+ .flags = INPUT_DEVICE_ID_MATCH_EVBIT,
+ .evbit = { BIT_MASK(EV_PWR) },
+ },
+ { },
+};
+
+MODULE_DEVICE_TABLE(input, apmpower_ids);
+
+static struct input_handler apmpower_handler = {
+ .event = apmpower_event,
+ .connect = apmpower_connect,
+ .disconnect = apmpower_disconnect,
+ .name = "apm-power",
+ .id_table = apmpower_ids,
+};
+
+static int __init apmpower_init(void)
+{
+ return input_register_handler(&apmpower_handler);
+}
+
+static void __exit apmpower_exit(void)
+{
+ input_unregister_handler(&apmpower_handler);
+}
+
+module_init(apmpower_init);
+module_exit(apmpower_exit);
+
+MODULE_AUTHOR("Richard Purdie <rpurdie@rpsys.net>");
+MODULE_DESCRIPTION("Input Power Event -> APM Bridge");
+MODULE_LICENSE("GPL");
diff --git a/drivers/input/evbug.c b/drivers/input/evbug.c
new file mode 100644
index 0000000..cd4e667
--- /dev/null
+++ b/drivers/input/evbug.c
@@ -0,0 +1,119 @@
+/*
+ * Copyright (c) 1999-2001 Vojtech Pavlik
+ */
+
+/*
+ * Input driver event debug module - dumps all events into syslog
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * Should you need to contact me, the author, you can do so either by
+ * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
+ * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/input.h>
+#include <linux/init.h>
+#include <linux/device.h>
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
+MODULE_DESCRIPTION("Input driver event debug module");
+MODULE_LICENSE("GPL");
+
+static void evbug_event(struct input_handle *handle, unsigned int type, unsigned int code, int value)
+{
+ printk(KERN_DEBUG pr_fmt("Event. Dev: %s, Type: %d, Code: %d, Value: %d\n"),
+ dev_name(&handle->dev->dev), type, code, value);
+}
+
+static int evbug_connect(struct input_handler *handler, struct input_dev *dev,
+ const struct input_device_id *id)
+{
+ struct input_handle *handle;
+ int error;
+
+ handle = kzalloc(sizeof(struct input_handle), GFP_KERNEL);
+ if (!handle)
+ return -ENOMEM;
+
+ handle->dev = dev;
+ handle->handler = handler;
+ handle->name = "evbug";
+
+ error = input_register_handle(handle);
+ if (error)
+ goto err_free_handle;
+
+ error = input_open_device(handle);
+ if (error)
+ goto err_unregister_handle;
+
+ printk(KERN_DEBUG pr_fmt("Connected device: %s (%s at %s)\n"),
+ dev_name(&dev->dev),
+ dev->name ?: "unknown",
+ dev->phys ?: "unknown");
+
+ return 0;
+
+ err_unregister_handle:
+ input_unregister_handle(handle);
+ err_free_handle:
+ kfree(handle);
+ return error;
+}
+
+static void evbug_disconnect(struct input_handle *handle)
+{
+ printk(KERN_DEBUG pr_fmt("Disconnected device: %s\n"),
+ dev_name(&handle->dev->dev));
+
+ input_close_device(handle);
+ input_unregister_handle(handle);
+ kfree(handle);
+}
+
+static const struct input_device_id evbug_ids[] = {
+ { .driver_info = 1 }, /* Matches all devices */
+ { }, /* Terminating zero entry */
+};
+
+MODULE_DEVICE_TABLE(input, evbug_ids);
+
+static struct input_handler evbug_handler = {
+ .event = evbug_event,
+ .connect = evbug_connect,
+ .disconnect = evbug_disconnect,
+ .name = "evbug",
+ .id_table = evbug_ids,
+};
+
+static int __init evbug_init(void)
+{
+ return input_register_handler(&evbug_handler);
+}
+
+static void __exit evbug_exit(void)
+{
+ input_unregister_handler(&evbug_handler);
+}
+
+module_init(evbug_init);
+module_exit(evbug_exit);
diff --git a/drivers/input/evdev.c b/drivers/input/evdev.c
new file mode 100644
index 0000000..4cf2534
--- /dev/null
+++ b/drivers/input/evdev.c
@@ -0,0 +1,1013 @@
+/*
+ * Event char devices, giving access to raw input device events.
+ *
+ * Copyright (c) 1999-2002 Vojtech Pavlik
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#define EVDEV_MINOR_BASE 64
+#define EVDEV_MINORS 32
+#define EVDEV_MIN_BUFFER_SIZE 64U
+#define EVDEV_BUF_PACKETS 8
+
+#include <linux/poll.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/input.h>
+#include <linux/major.h>
+#include <linux/device.h>
+#include "input-compat.h"
+
+struct evdev {
+ int open;
+ int minor;
+ struct input_handle handle;
+ wait_queue_head_t wait;
+ struct evdev_client __rcu *grab;
+ struct list_head client_list;
+ spinlock_t client_lock; /* protects client_list */
+ struct mutex mutex;
+ struct device dev;
+ bool exist;
+};
+
+struct evdev_client {
+ unsigned int head;
+ unsigned int tail;
+ unsigned int packet_head; /* [future] position of the first element of next packet */
+ spinlock_t buffer_lock; /* protects access to buffer, head and tail */
+ struct fasync_struct *fasync;
+ struct evdev *evdev;
+ struct list_head node;
+ unsigned int bufsize;
+ struct input_event buffer[];
+};
+
+static struct evdev *evdev_table[EVDEV_MINORS];
+static DEFINE_MUTEX(evdev_table_mutex);
+
+static void evdev_pass_event(struct evdev_client *client,
+ struct input_event *event)
+{
+ /* Interrupts are disabled, just acquire the lock. */
+ spin_lock(&client->buffer_lock);
+
+ client->buffer[client->head++] = *event;
+ client->head &= client->bufsize - 1;
+
+ if (unlikely(client->head == client->tail)) {
+ /*
+ * This effectively "drops" all unconsumed events, leaving
+ * EV_SYN/SYN_DROPPED plus the newest event in the queue.
+ */
+ client->tail = (client->head - 2) & (client->bufsize - 1);
+
+ client->buffer[client->tail].time = event->time;
+ client->buffer[client->tail].type = EV_SYN;
+ client->buffer[client->tail].code = SYN_DROPPED;
+ client->buffer[client->tail].value = 0;
+
+ client->packet_head = client->tail;
+ }
+
+ if (event->type == EV_SYN && event->code == SYN_REPORT) {
+ client->packet_head = client->head;
+ kill_fasync(&client->fasync, SIGIO, POLL_IN);
+ }
+
+ spin_unlock(&client->buffer_lock);
+}
+
+/*
+ * Pass incoming event to all connected clients.
+ */
+static void evdev_event(struct input_handle *handle,
+ unsigned int type, unsigned int code, int value)
+{
+ struct evdev *evdev = handle->private;
+ struct evdev_client *client;
+ struct input_event event;
+
+ do_gettimeofday(&event.time);
+ event.type = type;
+ event.code = code;
+ event.value = value;
+
+ rcu_read_lock();
+
+ client = rcu_dereference(evdev->grab);
+ if (client)
+ evdev_pass_event(client, &event);
+ else
+ list_for_each_entry_rcu(client, &evdev->client_list, node)
+ evdev_pass_event(client, &event);
+
+ rcu_read_unlock();
+
+ if (type == EV_SYN && code == SYN_REPORT)
+ wake_up_interruptible(&evdev->wait);
+}
+
+static int evdev_fasync(int fd, struct file *file, int on)
+{
+ struct evdev_client *client = file->private_data;
+
+ return fasync_helper(fd, file, on, &client->fasync);
+}
+
+static int evdev_flush(struct file *file, fl_owner_t id)
+{
+ struct evdev_client *client = file->private_data;
+ struct evdev *evdev = client->evdev;
+ int retval;
+
+ retval = mutex_lock_interruptible(&evdev->mutex);
+ if (retval)
+ return retval;
+
+ if (!evdev->exist)
+ retval = -ENODEV;
+ else
+ retval = input_flush_device(&evdev->handle, file);
+
+ mutex_unlock(&evdev->mutex);
+ return retval;
+}
+
+static void evdev_free(struct device *dev)
+{
+ struct evdev *evdev = container_of(dev, struct evdev, dev);
+
+ input_put_device(evdev->handle.dev);
+ kfree(evdev);
+}
+
+/*
+ * Grabs an event device (along with underlying input device).
+ * This function is called with evdev->mutex taken.
+ */
+static int evdev_grab(struct evdev *evdev, struct evdev_client *client)
+{
+ int error;
+
+ if (evdev->grab)
+ return -EBUSY;
+
+ error = input_grab_device(&evdev->handle);
+ if (error)
+ return error;
+
+ rcu_assign_pointer(evdev->grab, client);
+
+ return 0;
+}
+
+static int evdev_ungrab(struct evdev *evdev, struct evdev_client *client)
+{
+ if (evdev->grab != client)
+ return -EINVAL;
+
+ rcu_assign_pointer(evdev->grab, NULL);
+ synchronize_rcu();
+ input_release_device(&evdev->handle);
+
+ return 0;
+}
+
+static void evdev_attach_client(struct evdev *evdev,
+ struct evdev_client *client)
+{
+ spin_lock(&evdev->client_lock);
+ list_add_tail_rcu(&client->node, &evdev->client_list);
+ spin_unlock(&evdev->client_lock);
+}
+
+static void evdev_detach_client(struct evdev *evdev,
+ struct evdev_client *client)
+{
+ spin_lock(&evdev->client_lock);
+ list_del_rcu(&client->node);
+ spin_unlock(&evdev->client_lock);
+ synchronize_rcu();
+}
+
+static int evdev_open_device(struct evdev *evdev)
+{
+ int retval;
+
+ retval = mutex_lock_interruptible(&evdev->mutex);
+ if (retval)
+ return retval;
+
+ if (!evdev->exist)
+ retval = -ENODEV;
+ else if (!evdev->open++) {
+ retval = input_open_device(&evdev->handle);
+ if (retval)
+ evdev->open--;
+ }
+
+ mutex_unlock(&evdev->mutex);
+ return retval;
+}
+
+static void evdev_close_device(struct evdev *evdev)
+{
+ mutex_lock(&evdev->mutex);
+
+ if (evdev->exist && !--evdev->open)
+ input_close_device(&evdev->handle);
+
+ mutex_unlock(&evdev->mutex);
+}
+
+/*
+ * Wake up users waiting for IO so they can disconnect from
+ * dead device.
+ */
+static void evdev_hangup(struct evdev *evdev)
+{
+ struct evdev_client *client;
+
+ spin_lock(&evdev->client_lock);
+ list_for_each_entry(client, &evdev->client_list, node)
+ kill_fasync(&client->fasync, SIGIO, POLL_HUP);
+ spin_unlock(&evdev->client_lock);
+
+ wake_up_interruptible(&evdev->wait);
+}
+
+static int evdev_release(struct inode *inode, struct file *file)
+{
+ struct evdev_client *client = file->private_data;
+ struct evdev *evdev = client->evdev;
+
+ mutex_lock(&evdev->mutex);
+ if (evdev->grab == client)
+ evdev_ungrab(evdev, client);
+ mutex_unlock(&evdev->mutex);
+
+ evdev_detach_client(evdev, client);
+ kfree(client);
+
+ evdev_close_device(evdev);
+ put_device(&evdev->dev);
+
+ return 0;
+}
+
+static unsigned int evdev_compute_buffer_size(struct input_dev *dev)
+{
+ unsigned int n_events =
+ max(dev->hint_events_per_packet * EVDEV_BUF_PACKETS,
+ EVDEV_MIN_BUFFER_SIZE);
+
+ return roundup_pow_of_two(n_events);
+}
+
+static int evdev_open(struct inode *inode, struct file *file)
+{
+ struct evdev *evdev;
+ struct evdev_client *client;
+ int i = iminor(inode) - EVDEV_MINOR_BASE;
+ unsigned int bufsize;
+ int error;
+
+ if (i >= EVDEV_MINORS)
+ return -ENODEV;
+
+ error = mutex_lock_interruptible(&evdev_table_mutex);
+ if (error)
+ return error;
+ evdev = evdev_table[i];
+ if (evdev)
+ get_device(&evdev->dev);
+ mutex_unlock(&evdev_table_mutex);
+
+ if (!evdev)
+ return -ENODEV;
+
+ bufsize = evdev_compute_buffer_size(evdev->handle.dev);
+
+ client = kzalloc(sizeof(struct evdev_client) +
+ bufsize * sizeof(struct input_event),
+ GFP_KERNEL);
+ if (!client) {
+ error = -ENOMEM;
+ goto err_put_evdev;
+ }
+
+ client->bufsize = bufsize;
+ spin_lock_init(&client->buffer_lock);
+ client->evdev = evdev;
+ evdev_attach_client(evdev, client);
+
+ error = evdev_open_device(evdev);
+ if (error)
+ goto err_free_client;
+
+ file->private_data = client;
+ nonseekable_open(inode, file);
+
+ return 0;
+
+ err_free_client:
+ evdev_detach_client(evdev, client);
+ kfree(client);
+ err_put_evdev:
+ put_device(&evdev->dev);
+ return error;
+}
+
+static ssize_t evdev_write(struct file *file, const char __user *buffer,
+ size_t count, loff_t *ppos)
+{
+ struct evdev_client *client = file->private_data;
+ struct evdev *evdev = client->evdev;
+ struct input_event event;
+ int retval;
+
+ if (count < input_event_size())
+ return -EINVAL;
+
+ retval = mutex_lock_interruptible(&evdev->mutex);
+ if (retval)
+ return retval;
+
+ if (!evdev->exist) {
+ retval = -ENODEV;
+ goto out;
+ }
+
+ do {
+ if (input_event_from_user(buffer + retval, &event)) {
+ retval = -EFAULT;
+ goto out;
+ }
+ retval += input_event_size();
+
+ input_inject_event(&evdev->handle,
+ event.type, event.code, event.value);
+ } while (retval + input_event_size() <= count);
+
+ out:
+ mutex_unlock(&evdev->mutex);
+ return retval;
+}
+
+static int evdev_fetch_next_event(struct evdev_client *client,
+ struct input_event *event)
+{
+ int have_event;
+
+ spin_lock_irq(&client->buffer_lock);
+
+ have_event = client->head != client->tail;
+ if (have_event) {
+ *event = client->buffer[client->tail++];
+ client->tail &= client->bufsize - 1;
+ }
+
+ spin_unlock_irq(&client->buffer_lock);
+
+ return have_event;
+}
+
+static ssize_t evdev_read(struct file *file, char __user *buffer,
+ size_t count, loff_t *ppos)
+{
+ struct evdev_client *client = file->private_data;
+ struct evdev *evdev = client->evdev;
+ struct input_event event;
+ int retval;
+
+ if (count < input_event_size())
+ return -EINVAL;
+
+ if (client->packet_head == client->tail && evdev->exist &&
+ (file->f_flags & O_NONBLOCK))
+ return -EAGAIN;
+
+ retval = wait_event_interruptible(evdev->wait,
+ client->packet_head != client->tail || !evdev->exist);
+ if (retval)
+ return retval;
+
+ if (!evdev->exist)
+ return -ENODEV;
+
+ while (retval + input_event_size() <= count &&
+ evdev_fetch_next_event(client, &event)) {
+
+ if (input_event_to_user(buffer + retval, &event))
+ return -EFAULT;
+
+ retval += input_event_size();
+ }
+
+ return retval;
+}
+
+/* No kernel lock - fine */
+static unsigned int evdev_poll(struct file *file, poll_table *wait)
+{
+ struct evdev_client *client = file->private_data;
+ struct evdev *evdev = client->evdev;
+ unsigned int mask;
+
+ poll_wait(file, &evdev->wait, wait);
+
+ mask = evdev->exist ? POLLOUT | POLLWRNORM : POLLHUP | POLLERR;
+ if (client->packet_head != client->tail)
+ mask |= POLLIN | POLLRDNORM;
+
+ return mask;
+}
+
+#ifdef CONFIG_COMPAT
+
+#define BITS_PER_LONG_COMPAT (sizeof(compat_long_t) * 8)
+#define BITS_TO_LONGS_COMPAT(x) ((((x) - 1) / BITS_PER_LONG_COMPAT) + 1)
+
+#ifdef __BIG_ENDIAN
+static int bits_to_user(unsigned long *bits, unsigned int maxbit,
+ unsigned int maxlen, void __user *p, int compat)
+{
+ int len, i;
+
+ if (compat) {
+ len = BITS_TO_LONGS_COMPAT(maxbit) * sizeof(compat_long_t);
+ if (len > maxlen)
+ len = maxlen;
+
+ for (i = 0; i < len / sizeof(compat_long_t); i++)
+ if (copy_to_user((compat_long_t __user *) p + i,
+ (compat_long_t *) bits +
+ i + 1 - ((i % 2) << 1),
+ sizeof(compat_long_t)))
+ return -EFAULT;
+ } else {
+ len = BITS_TO_LONGS(maxbit) * sizeof(long);
+ if (len > maxlen)
+ len = maxlen;
+
+ if (copy_to_user(p, bits, len))
+ return -EFAULT;
+ }
+
+ return len;
+}
+#else
+static int bits_to_user(unsigned long *bits, unsigned int maxbit,
+ unsigned int maxlen, void __user *p, int compat)
+{
+ int len = compat ?
+ BITS_TO_LONGS_COMPAT(maxbit) * sizeof(compat_long_t) :
+ BITS_TO_LONGS(maxbit) * sizeof(long);
+
+ if (len > maxlen)
+ len = maxlen;
+
+ return copy_to_user(p, bits, len) ? -EFAULT : len;
+}
+#endif /* __BIG_ENDIAN */
+
+#else
+
+static int bits_to_user(unsigned long *bits, unsigned int maxbit,
+ unsigned int maxlen, void __user *p, int compat)
+{
+ int len = BITS_TO_LONGS(maxbit) * sizeof(long);
+
+ if (len > maxlen)
+ len = maxlen;
+
+ return copy_to_user(p, bits, len) ? -EFAULT : len;
+}
+
+#endif /* CONFIG_COMPAT */
+
+static int str_to_user(const char *str, unsigned int maxlen, void __user *p)
+{
+ int len;
+
+ if (!str)
+ return -ENOENT;
+
+ len = strlen(str) + 1;
+ if (len > maxlen)
+ len = maxlen;
+
+ return copy_to_user(p, str, len) ? -EFAULT : len;
+}
+
+#define OLD_KEY_MAX 0x1ff
+static int handle_eviocgbit(struct input_dev *dev,
+ unsigned int type, unsigned int size,
+ void __user *p, int compat_mode)
+{
+ static unsigned long keymax_warn_time;
+ unsigned long *bits;
+ int len;
+
+ switch (type) {
+
+ case 0: bits = dev->evbit; len = EV_MAX; break;
+ case EV_KEY: bits = dev->keybit; len = KEY_MAX; break;
+ case EV_REL: bits = dev->relbit; len = REL_MAX; break;
+ case EV_ABS: bits = dev->absbit; len = ABS_MAX; break;
+ case EV_MSC: bits = dev->mscbit; len = MSC_MAX; break;
+ case EV_LED: bits = dev->ledbit; len = LED_MAX; break;
+ case EV_SND: bits = dev->sndbit; len = SND_MAX; break;
+ case EV_FF: bits = dev->ffbit; len = FF_MAX; break;
+ case EV_SW: bits = dev->swbit; len = SW_MAX; break;
+ default: return -EINVAL;
+ }
+
+ /*
+ * Work around bugs in userspace programs that like to do
+ * EVIOCGBIT(EV_KEY, KEY_MAX) and not realize that 'len'
+ * should be in bytes, not in bits.
+ */
+ if (type == EV_KEY && size == OLD_KEY_MAX) {
+ len = OLD_KEY_MAX;
+ if (printk_timed_ratelimit(&keymax_warn_time, 10 * 1000))
+ pr_warning("(EVIOCGBIT): Suspicious buffer size %u, "
+ "limiting output to %zu bytes. See "
+ "http://userweb.kernel.org/~dtor/eviocgbit-bug.html\n",
+ OLD_KEY_MAX,
+ BITS_TO_LONGS(OLD_KEY_MAX) * sizeof(long));
+ }
+
+ return bits_to_user(bits, len, size, p, compat_mode);
+}
+#undef OLD_KEY_MAX
+
+static int evdev_handle_get_keycode(struct input_dev *dev, void __user *p)
+{
+ struct input_keymap_entry ke = {
+ .len = sizeof(unsigned int),
+ .flags = 0,
+ };
+ int __user *ip = (int __user *)p;
+ int error;
+
+ /* legacy case */
+ if (copy_from_user(ke.scancode, p, sizeof(unsigned int)))
+ return -EFAULT;
+
+ error = input_get_keycode(dev, &ke);
+ if (error)
+ return error;
+
+ if (put_user(ke.keycode, ip + 1))
+ return -EFAULT;
+
+ return 0;
+}
+
+static int evdev_handle_get_keycode_v2(struct input_dev *dev, void __user *p)
+{
+ struct input_keymap_entry ke;
+ int error;
+
+ if (copy_from_user(&ke, p, sizeof(ke)))
+ return -EFAULT;
+
+ error = input_get_keycode(dev, &ke);
+ if (error)
+ return error;
+
+ if (copy_to_user(p, &ke, sizeof(ke)))
+ return -EFAULT;
+
+ return 0;
+}
+
+static int evdev_handle_set_keycode(struct input_dev *dev, void __user *p)
+{
+ struct input_keymap_entry ke = {
+ .len = sizeof(unsigned int),
+ .flags = 0,
+ };
+ int __user *ip = (int __user *)p;
+
+ if (copy_from_user(ke.scancode, p, sizeof(unsigned int)))
+ return -EFAULT;
+
+ if (get_user(ke.keycode, ip + 1))
+ return -EFAULT;
+
+ return input_set_keycode(dev, &ke);
+}
+
+static int evdev_handle_set_keycode_v2(struct input_dev *dev, void __user *p)
+{
+ struct input_keymap_entry ke;
+
+ if (copy_from_user(&ke, p, sizeof(ke)))
+ return -EFAULT;
+
+ if (ke.len > sizeof(ke.scancode))
+ return -EINVAL;
+
+ return input_set_keycode(dev, &ke);
+}
+
+static long evdev_do_ioctl(struct file *file, unsigned int cmd,
+ void __user *p, int compat_mode)
+{
+ struct evdev_client *client = file->private_data;
+ struct evdev *evdev = client->evdev;
+ struct input_dev *dev = evdev->handle.dev;
+ struct input_absinfo abs;
+ struct ff_effect effect;
+ int __user *ip = (int __user *)p;
+ unsigned int i, t, u, v;
+ unsigned int size;
+ int error;
+
+ /* First we check for fixed-length commands */
+ switch (cmd) {
+
+ case EVIOCGVERSION:
+ return put_user(EV_VERSION, ip);
+
+ case EVIOCGID:
+ if (copy_to_user(p, &dev->id, sizeof(struct input_id)))
+ return -EFAULT;
+ return 0;
+
+ case EVIOCGREP:
+ if (!test_bit(EV_REP, dev->evbit))
+ return -ENOSYS;
+ if (put_user(dev->rep[REP_DELAY], ip))
+ return -EFAULT;
+ if (put_user(dev->rep[REP_PERIOD], ip + 1))
+ return -EFAULT;
+ return 0;
+
+ case EVIOCSREP:
+ if (!test_bit(EV_REP, dev->evbit))
+ return -ENOSYS;
+ if (get_user(u, ip))
+ return -EFAULT;
+ if (get_user(v, ip + 1))
+ return -EFAULT;
+
+ input_inject_event(&evdev->handle, EV_REP, REP_DELAY, u);
+ input_inject_event(&evdev->handle, EV_REP, REP_PERIOD, v);
+
+ return 0;
+
+ case EVIOCRMFF:
+ return input_ff_erase(dev, (int)(unsigned long) p, file);
+
+ case EVIOCGEFFECTS:
+ i = test_bit(EV_FF, dev->evbit) ?
+ dev->ff->max_effects : 0;
+ if (put_user(i, ip))
+ return -EFAULT;
+ return 0;
+
+ case EVIOCGRAB:
+ if (p)
+ return evdev_grab(evdev, client);
+ else
+ return evdev_ungrab(evdev, client);
+
+ case EVIOCGKEYCODE:
+ return evdev_handle_get_keycode(dev, p);
+
+ case EVIOCSKEYCODE:
+ return evdev_handle_set_keycode(dev, p);
+
+ case EVIOCGKEYCODE_V2:
+ return evdev_handle_get_keycode_v2(dev, p);
+
+ case EVIOCSKEYCODE_V2:
+ return evdev_handle_set_keycode_v2(dev, p);
+ }
+
+ size = _IOC_SIZE(cmd);
+
+ /* Now check variable-length commands */
+#define EVIOC_MASK_SIZE(nr) ((nr) & ~(_IOC_SIZEMASK << _IOC_SIZESHIFT))
+ switch (EVIOC_MASK_SIZE(cmd)) {
+
+ case EVIOCGPROP(0):
+ return bits_to_user(dev->propbit, INPUT_PROP_MAX,
+ size, p, compat_mode);
+
+ case EVIOCGKEY(0):
+ return bits_to_user(dev->key, KEY_MAX, size, p, compat_mode);
+
+ case EVIOCGLED(0):
+ return bits_to_user(dev->led, LED_MAX, size, p, compat_mode);
+
+ case EVIOCGSND(0):
+ return bits_to_user(dev->snd, SND_MAX, size, p, compat_mode);
+
+ case EVIOCGSW(0):
+ return bits_to_user(dev->sw, SW_MAX, size, p, compat_mode);
+
+ case EVIOCGNAME(0):
+ return str_to_user(dev->name, size, p);
+
+ case EVIOCGPHYS(0):
+ return str_to_user(dev->phys, size, p);
+
+ case EVIOCGUNIQ(0):
+ return str_to_user(dev->uniq, size, p);
+
+ case EVIOC_MASK_SIZE(EVIOCSFF):
+ if (input_ff_effect_from_user(p, size, &effect))
+ return -EFAULT;
+
+ error = input_ff_upload(dev, &effect, file);
+
+ if (put_user(effect.id, &(((struct ff_effect __user *)p)->id)))
+ return -EFAULT;
+
+ return error;
+ }
+
+ /* Multi-number variable-length handlers */
+ if (_IOC_TYPE(cmd) != 'E')
+ return -EINVAL;
+
+ if (_IOC_DIR(cmd) == _IOC_READ) {
+
+ if ((_IOC_NR(cmd) & ~EV_MAX) == _IOC_NR(EVIOCGBIT(0, 0)))
+ return handle_eviocgbit(dev,
+ _IOC_NR(cmd) & EV_MAX, size,
+ p, compat_mode);
+
+ if ((_IOC_NR(cmd) & ~ABS_MAX) == _IOC_NR(EVIOCGABS(0))) {
+
+ if (!dev->absinfo)
+ return -EINVAL;
+
+ t = _IOC_NR(cmd) & ABS_MAX;
+ abs = dev->absinfo[t];
+
+ if (copy_to_user(p, &abs, min_t(size_t,
+ size, sizeof(struct input_absinfo))))
+ return -EFAULT;
+
+ return 0;
+ }
+ }
+
+ if (_IOC_DIR(cmd) == _IOC_WRITE) {
+
+ if ((_IOC_NR(cmd) & ~ABS_MAX) == _IOC_NR(EVIOCSABS(0))) {
+
+ if (!dev->absinfo)
+ return -EINVAL;
+
+ t = _IOC_NR(cmd) & ABS_MAX;
+
+ if (copy_from_user(&abs, p, min_t(size_t,
+ size, sizeof(struct input_absinfo))))
+ return -EFAULT;
+
+ if (size < sizeof(struct input_absinfo))
+ abs.resolution = 0;
+
+ /* We can't change number of reserved MT slots */
+ if (t == ABS_MT_SLOT)
+ return -EINVAL;
+
+ /*
+ * Take event lock to ensure that we are not
+ * changing device parameters in the middle
+ * of event.
+ */
+ spin_lock_irq(&dev->event_lock);
+ dev->absinfo[t] = abs;
+ spin_unlock_irq(&dev->event_lock);
+
+ return 0;
+ }
+ }
+
+ return -EINVAL;
+}
+
+static long evdev_ioctl_handler(struct file *file, unsigned int cmd,
+ void __user *p, int compat_mode)
+{
+ struct evdev_client *client = file->private_data;
+ struct evdev *evdev = client->evdev;
+ int retval;
+
+ retval = mutex_lock_interruptible(&evdev->mutex);
+ if (retval)
+ return retval;
+
+ if (!evdev->exist) {
+ retval = -ENODEV;
+ goto out;
+ }
+
+ retval = evdev_do_ioctl(file, cmd, p, compat_mode);
+
+ out:
+ mutex_unlock(&evdev->mutex);
+ return retval;
+}
+
+static long evdev_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
+{
+ return evdev_ioctl_handler(file, cmd, (void __user *)arg, 0);
+}
+
+#ifdef CONFIG_COMPAT
+static long evdev_ioctl_compat(struct file *file,
+ unsigned int cmd, unsigned long arg)
+{
+ return evdev_ioctl_handler(file, cmd, compat_ptr(arg), 1);
+}
+#endif
+
+static const struct file_operations evdev_fops = {
+ .owner = THIS_MODULE,
+ .read = evdev_read,
+ .write = evdev_write,
+ .poll = evdev_poll,
+ .open = evdev_open,
+ .release = evdev_release,
+ .unlocked_ioctl = evdev_ioctl,
+#ifdef CONFIG_COMPAT
+ .compat_ioctl = evdev_ioctl_compat,
+#endif
+ .fasync = evdev_fasync,
+ .flush = evdev_flush,
+ .llseek = no_llseek,
+};
+
+static int evdev_install_chrdev(struct evdev *evdev)
+{
+ /*
+ * No need to do any locking here as calls to connect and
+ * disconnect are serialized by the input core
+ */
+ evdev_table[evdev->minor] = evdev;
+ return 0;
+}
+
+static void evdev_remove_chrdev(struct evdev *evdev)
+{
+ /*
+ * Lock evdev table to prevent race with evdev_open()
+ */
+ mutex_lock(&evdev_table_mutex);
+ evdev_table[evdev->minor] = NULL;
+ mutex_unlock(&evdev_table_mutex);
+}
+
+/*
+ * Mark device non-existent. This disables writes, ioctls and
+ * prevents new users from opening the device. Already posted
+ * blocking reads will stay, however new ones will fail.
+ */
+static void evdev_mark_dead(struct evdev *evdev)
+{
+ mutex_lock(&evdev->mutex);
+ evdev->exist = false;
+ mutex_unlock(&evdev->mutex);
+}
+
+static void evdev_cleanup(struct evdev *evdev)
+{
+ struct input_handle *handle = &evdev->handle;
+
+ evdev_mark_dead(evdev);
+ evdev_hangup(evdev);
+ evdev_remove_chrdev(evdev);
+
+ /* evdev is marked dead so no one else accesses evdev->open */
+ if (evdev->open) {
+ input_flush_device(handle, NULL);
+ input_close_device(handle);
+ }
+}
+
+/*
+ * Create new evdev device. Note that input core serializes calls
+ * to connect and disconnect so we don't need to lock evdev_table here.
+ */
+static int evdev_connect(struct input_handler *handler, struct input_dev *dev,
+ const struct input_device_id *id)
+{
+ struct evdev *evdev;
+ int minor;
+ int error;
+
+ for (minor = 0; minor < EVDEV_MINORS; minor++)
+ if (!evdev_table[minor])
+ break;
+
+ if (minor == EVDEV_MINORS) {
+ pr_err("no more free evdev devices\n");
+ return -ENFILE;
+ }
+
+ evdev = kzalloc(sizeof(struct evdev), GFP_KERNEL);
+ if (!evdev)
+ return -ENOMEM;
+
+ INIT_LIST_HEAD(&evdev->client_list);
+ spin_lock_init(&evdev->client_lock);
+ mutex_init(&evdev->mutex);
+ init_waitqueue_head(&evdev->wait);
+
+ dev_set_name(&evdev->dev, "event%d", minor);
+ evdev->exist = true;
+ evdev->minor = minor;
+
+ evdev->handle.dev = input_get_device(dev);
+ evdev->handle.name = dev_name(&evdev->dev);
+ evdev->handle.handler = handler;
+ evdev->handle.private = evdev;
+
+ evdev->dev.devt = MKDEV(INPUT_MAJOR, EVDEV_MINOR_BASE + minor);
+ evdev->dev.class = &input_class;
+ evdev->dev.parent = &dev->dev;
+ evdev->dev.release = evdev_free;
+ device_initialize(&evdev->dev);
+
+ error = input_register_handle(&evdev->handle);
+ if (error)
+ goto err_free_evdev;
+
+ error = evdev_install_chrdev(evdev);
+ if (error)
+ goto err_unregister_handle;
+
+ error = device_add(&evdev->dev);
+ if (error)
+ goto err_cleanup_evdev;
+
+ return 0;
+
+ err_cleanup_evdev:
+ evdev_cleanup(evdev);
+ err_unregister_handle:
+ input_unregister_handle(&evdev->handle);
+ err_free_evdev:
+ put_device(&evdev->dev);
+ return error;
+}
+
+static void evdev_disconnect(struct input_handle *handle)
+{
+ struct evdev *evdev = handle->private;
+
+ device_del(&evdev->dev);
+ evdev_cleanup(evdev);
+ input_unregister_handle(handle);
+ put_device(&evdev->dev);
+}
+
+static const struct input_device_id evdev_ids[] = {
+ { .driver_info = 1 }, /* Matches all devices */
+ { }, /* Terminating zero entry */
+};
+
+MODULE_DEVICE_TABLE(input, evdev_ids);
+
+static struct input_handler evdev_handler = {
+ .event = evdev_event,
+ .connect = evdev_connect,
+ .disconnect = evdev_disconnect,
+ .fops = &evdev_fops,
+ .minor = EVDEV_MINOR_BASE,
+ .name = "evdev",
+ .id_table = evdev_ids,
+};
+
+static int __init evdev_init(void)
+{
+ return input_register_handler(&evdev_handler);
+}
+
+static void __exit evdev_exit(void)
+{
+ input_unregister_handler(&evdev_handler);
+}
+
+module_init(evdev_init);
+module_exit(evdev_exit);
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
+MODULE_DESCRIPTION("Input driver event char devices");
+MODULE_LICENSE("GPL");
diff --git a/drivers/input/ff-core.c b/drivers/input/ff-core.c
new file mode 100644
index 0000000..480eb9d
--- /dev/null
+++ b/drivers/input/ff-core.c
@@ -0,0 +1,382 @@
+/*
+ * Force feedback support for Linux input subsystem
+ *
+ * Copyright (c) 2006 Anssi Hannula <anssi.hannula@gmail.com>
+ * Copyright (c) 2006 Dmitry Torokhov <dtor@mail.ru>
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+/* #define DEBUG */
+
+#define pr_fmt(fmt) KBUILD_BASENAME ": " fmt
+
+#include <linux/input.h>
+#include <linux/module.h>
+#include <linux/mutex.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
+
+/*
+ * Check that the effect_id is a valid effect and whether the user
+ * is the owner
+ */
+static int check_effect_access(struct ff_device *ff, int effect_id,
+ struct file *file)
+{
+ if (effect_id < 0 || effect_id >= ff->max_effects ||
+ !ff->effect_owners[effect_id])
+ return -EINVAL;
+
+ if (file && ff->effect_owners[effect_id] != file)
+ return -EACCES;
+
+ return 0;
+}
+
+/*
+ * Checks whether 2 effects can be combined together
+ */
+static inline int check_effects_compatible(struct ff_effect *e1,
+ struct ff_effect *e2)
+{
+ return e1->type == e2->type &&
+ (e1->type != FF_PERIODIC ||
+ e1->u.periodic.waveform == e2->u.periodic.waveform);
+}
+
+/*
+ * Convert an effect into compatible one
+ */
+static int compat_effect(struct ff_device *ff, struct ff_effect *effect)
+{
+ int magnitude;
+
+ switch (effect->type) {
+ case FF_RUMBLE:
+ if (!test_bit(FF_PERIODIC, ff->ffbit))
+ return -EINVAL;
+
+ /*
+ * calculate manginude of sine wave as average of rumble's
+ * 2/3 of strong magnitude and 1/3 of weak magnitude
+ */
+ magnitude = effect->u.rumble.strong_magnitude / 3 +
+ effect->u.rumble.weak_magnitude / 6;
+
+ effect->type = FF_PERIODIC;
+ effect->u.periodic.waveform = FF_SINE;
+ effect->u.periodic.period = 50;
+ effect->u.periodic.magnitude = max(magnitude, 0x7fff);
+ effect->u.periodic.offset = 0;
+ effect->u.periodic.phase = 0;
+ effect->u.periodic.envelope.attack_length = 0;
+ effect->u.periodic.envelope.attack_level = 0;
+ effect->u.periodic.envelope.fade_length = 0;
+ effect->u.periodic.envelope.fade_level = 0;
+
+ return 0;
+
+ default:
+ /* Let driver handle conversion */
+ return 0;
+ }
+}
+
+/**
+ * input_ff_upload() - upload effect into force-feedback device
+ * @dev: input device
+ * @effect: effect to be uploaded
+ * @file: owner of the effect
+ */
+int input_ff_upload(struct input_dev *dev, struct ff_effect *effect,
+ struct file *file)
+{
+ struct ff_device *ff = dev->ff;
+ struct ff_effect *old;
+ int ret = 0;
+ int id;
+
+ if (!test_bit(EV_FF, dev->evbit))
+ return -ENOSYS;
+
+ if (effect->type < FF_EFFECT_MIN || effect->type > FF_EFFECT_MAX ||
+ !test_bit(effect->type, dev->ffbit)) {
+ pr_debug("invalid or not supported effect type in upload\n");
+ return -EINVAL;
+ }
+
+ if (effect->type == FF_PERIODIC &&
+ (effect->u.periodic.waveform < FF_WAVEFORM_MIN ||
+ effect->u.periodic.waveform > FF_WAVEFORM_MAX ||
+ !test_bit(effect->u.periodic.waveform, dev->ffbit))) {
+ pr_debug("invalid or not supported wave form in upload\n");
+ return -EINVAL;
+ }
+
+ if (!test_bit(effect->type, ff->ffbit)) {
+ ret = compat_effect(ff, effect);
+ if (ret)
+ return ret;
+ }
+
+ mutex_lock(&ff->mutex);
+
+ if (effect->id == -1) {
+ for (id = 0; id < ff->max_effects; id++)
+ if (!ff->effect_owners[id])
+ break;
+
+ if (id >= ff->max_effects) {
+ ret = -ENOSPC;
+ goto out;
+ }
+
+ effect->id = id;
+ old = NULL;
+
+ } else {
+ id = effect->id;
+
+ ret = check_effect_access(ff, id, file);
+ if (ret)
+ goto out;
+
+ old = &ff->effects[id];
+
+ if (!check_effects_compatible(effect, old)) {
+ ret = -EINVAL;
+ goto out;
+ }
+ }
+
+ ret = ff->upload(dev, effect, old);
+ if (ret)
+ goto out;
+
+ spin_lock_irq(&dev->event_lock);
+ ff->effects[id] = *effect;
+ ff->effect_owners[id] = file;
+ spin_unlock_irq(&dev->event_lock);
+
+ out:
+ mutex_unlock(&ff->mutex);
+ return ret;
+}
+EXPORT_SYMBOL_GPL(input_ff_upload);
+
+/*
+ * Erases the effect if the requester is also the effect owner. The mutex
+ * should already be locked before calling this function.
+ */
+static int erase_effect(struct input_dev *dev, int effect_id,
+ struct file *file)
+{
+ struct ff_device *ff = dev->ff;
+ int error;
+
+ error = check_effect_access(ff, effect_id, file);
+ if (error)
+ return error;
+
+ spin_lock_irq(&dev->event_lock);
+ ff->playback(dev, effect_id, 0);
+ ff->effect_owners[effect_id] = NULL;
+ spin_unlock_irq(&dev->event_lock);
+
+ if (ff->erase) {
+ error = ff->erase(dev, effect_id);
+ if (error) {
+ spin_lock_irq(&dev->event_lock);
+ ff->effect_owners[effect_id] = file;
+ spin_unlock_irq(&dev->event_lock);
+
+ return error;
+ }
+ }
+
+ return 0;
+}
+
+/**
+ * input_ff_erase - erase a force-feedback effect from device
+ * @dev: input device to erase effect from
+ * @effect_id: id of the ffect to be erased
+ * @file: purported owner of the request
+ *
+ * This function erases a force-feedback effect from specified device.
+ * The effect will only be erased if it was uploaded through the same
+ * file handle that is requesting erase.
+ */
+int input_ff_erase(struct input_dev *dev, int effect_id, struct file *file)
+{
+ struct ff_device *ff = dev->ff;
+ int ret;
+
+ if (!test_bit(EV_FF, dev->evbit))
+ return -ENOSYS;
+
+ mutex_lock(&ff->mutex);
+ ret = erase_effect(dev, effect_id, file);
+ mutex_unlock(&ff->mutex);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(input_ff_erase);
+
+/*
+ * flush_effects - erase all effects owned by a file handle
+ */
+static int flush_effects(struct input_dev *dev, struct file *file)
+{
+ struct ff_device *ff = dev->ff;
+ int i;
+
+ pr_debug("flushing now\n");
+
+ mutex_lock(&ff->mutex);
+
+ for (i = 0; i < ff->max_effects; i++)
+ erase_effect(dev, i, file);
+
+ mutex_unlock(&ff->mutex);
+
+ return 0;
+}
+
+/**
+ * input_ff_event() - generic handler for force-feedback events
+ * @dev: input device to send the effect to
+ * @type: event type (anything but EV_FF is ignored)
+ * @code: event code
+ * @value: event value
+ */
+int input_ff_event(struct input_dev *dev, unsigned int type,
+ unsigned int code, int value)
+{
+ struct ff_device *ff = dev->ff;
+
+ if (type != EV_FF)
+ return 0;
+
+ switch (code) {
+ case FF_GAIN:
+ if (!test_bit(FF_GAIN, dev->ffbit) || value > 0xffff)
+ break;
+
+ ff->set_gain(dev, value);
+ break;
+
+ case FF_AUTOCENTER:
+ if (!test_bit(FF_AUTOCENTER, dev->ffbit) || value > 0xffff)
+ break;
+
+ ff->set_autocenter(dev, value);
+ break;
+
+ default:
+ if (check_effect_access(ff, code, NULL) == 0)
+ ff->playback(dev, code, value);
+ break;
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(input_ff_event);
+
+/**
+ * input_ff_create() - create force-feedback device
+ * @dev: input device supporting force-feedback
+ * @max_effects: maximum number of effects supported by the device
+ *
+ * This function allocates all necessary memory for a force feedback
+ * portion of an input device and installs all default handlers.
+ * @dev->ffbit should be already set up before calling this function.
+ * Once ff device is created you need to setup its upload, erase,
+ * playback and other handlers before registering input device
+ */
+int input_ff_create(struct input_dev *dev, unsigned int max_effects)
+{
+ struct ff_device *ff;
+ size_t ff_dev_size;
+ int i;
+
+ if (!max_effects) {
+ pr_err("cannot allocate device without any effects\n");
+ return -EINVAL;
+ }
+
+ ff_dev_size = sizeof(struct ff_device) +
+ max_effects * sizeof(struct file *);
+ if (ff_dev_size < max_effects) /* overflow */
+ return -EINVAL;
+
+ ff = kzalloc(ff_dev_size, GFP_KERNEL);
+ if (!ff)
+ return -ENOMEM;
+
+ ff->effects = kcalloc(max_effects, sizeof(struct ff_effect),
+ GFP_KERNEL);
+ if (!ff->effects) {
+ kfree(ff);
+ return -ENOMEM;
+ }
+
+ ff->max_effects = max_effects;
+ mutex_init(&ff->mutex);
+
+ dev->ff = ff;
+ dev->flush = flush_effects;
+ dev->event = input_ff_event;
+ __set_bit(EV_FF, dev->evbit);
+
+ /* Copy "true" bits into ff device bitmap */
+ for (i = 0; i <= FF_MAX; i++)
+ if (test_bit(i, dev->ffbit))
+ __set_bit(i, ff->ffbit);
+
+ /* we can emulate RUMBLE with periodic effects */
+ if (test_bit(FF_PERIODIC, ff->ffbit))
+ __set_bit(FF_RUMBLE, dev->ffbit);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(input_ff_create);
+
+/**
+ * input_ff_destroy() - frees force feedback portion of input device
+ * @dev: input device supporting force feedback
+ *
+ * This function is only needed in error path as input core will
+ * automatically free force feedback structures when device is
+ * destroyed.
+ */
+void input_ff_destroy(struct input_dev *dev)
+{
+ struct ff_device *ff = dev->ff;
+
+ __clear_bit(EV_FF, dev->evbit);
+ if (ff) {
+ if (ff->destroy)
+ ff->destroy(ff);
+ kfree(ff->private);
+ kfree(ff->effects);
+ kfree(ff);
+ dev->ff = NULL;
+ }
+}
+EXPORT_SYMBOL_GPL(input_ff_destroy);
diff --git a/drivers/input/ff-memless.c b/drivers/input/ff-memless.c
new file mode 100644
index 0000000..117a59a
--- /dev/null
+++ b/drivers/input/ff-memless.c
@@ -0,0 +1,546 @@
+/*
+ * Force feedback support for memoryless devices
+ *
+ * Copyright (c) 2006 Anssi Hannula <anssi.hannula@gmail.com>
+ * Copyright (c) 2006 Dmitry Torokhov <dtor@mail.ru>
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+/* #define DEBUG */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/slab.h>
+#include <linux/input.h>
+#include <linux/module.h>
+#include <linux/mutex.h>
+#include <linux/spinlock.h>
+#include <linux/jiffies.h>
+
+#include "fixp-arith.h"
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Anssi Hannula <anssi.hannula@gmail.com>");
+MODULE_DESCRIPTION("Force feedback support for memoryless devices");
+
+/* Number of effects handled with memoryless devices */
+#define FF_MEMLESS_EFFECTS 16
+
+/* Envelope update interval in ms */
+#define FF_ENVELOPE_INTERVAL 50
+
+#define FF_EFFECT_STARTED 0
+#define FF_EFFECT_PLAYING 1
+#define FF_EFFECT_ABORTING 2
+
+struct ml_effect_state {
+ struct ff_effect *effect;
+ unsigned long flags; /* effect state (STARTED, PLAYING, etc) */
+ int count; /* loop count of the effect */
+ unsigned long play_at; /* start time */
+ unsigned long stop_at; /* stop time */
+ unsigned long adj_at; /* last time the effect was sent */
+};
+
+struct ml_device {
+ void *private;
+ struct ml_effect_state states[FF_MEMLESS_EFFECTS];
+ int gain;
+ struct timer_list timer;
+ struct input_dev *dev;
+
+ int (*play_effect)(struct input_dev *dev, void *data,
+ struct ff_effect *effect);
+};
+
+static const struct ff_envelope *get_envelope(const struct ff_effect *effect)
+{
+ static const struct ff_envelope empty_envelope;
+
+ switch (effect->type) {
+ case FF_PERIODIC:
+ return &effect->u.periodic.envelope;
+ case FF_CONSTANT:
+ return &effect->u.constant.envelope;
+ default:
+ return &empty_envelope;
+ }
+}
+
+/*
+ * Check for the next time envelope requires an update on memoryless devices
+ */
+static unsigned long calculate_next_time(struct ml_effect_state *state)
+{
+ const struct ff_envelope *envelope = get_envelope(state->effect);
+ unsigned long attack_stop, fade_start, next_fade;
+
+ if (envelope->attack_length) {
+ attack_stop = state->play_at +
+ msecs_to_jiffies(envelope->attack_length);
+ if (time_before(state->adj_at, attack_stop))
+ return state->adj_at +
+ msecs_to_jiffies(FF_ENVELOPE_INTERVAL);
+ }
+
+ if (state->effect->replay.length) {
+ if (envelope->fade_length) {
+ /* check when fading should start */
+ fade_start = state->stop_at -
+ msecs_to_jiffies(envelope->fade_length);
+
+ if (time_before(state->adj_at, fade_start))
+ return fade_start;
+
+ /* already fading, advance to next checkpoint */
+ next_fade = state->adj_at +
+ msecs_to_jiffies(FF_ENVELOPE_INTERVAL);
+ if (time_before(next_fade, state->stop_at))
+ return next_fade;
+ }
+
+ return state->stop_at;
+ }
+
+ return state->play_at;
+}
+
+static void ml_schedule_timer(struct ml_device *ml)
+{
+ struct ml_effect_state *state;
+ unsigned long now = jiffies;
+ unsigned long earliest = 0;
+ unsigned long next_at;
+ int events = 0;
+ int i;
+
+ pr_debug("calculating next timer\n");
+
+ for (i = 0; i < FF_MEMLESS_EFFECTS; i++) {
+
+ state = &ml->states[i];
+
+ if (!test_bit(FF_EFFECT_STARTED, &state->flags))
+ continue;
+
+ if (test_bit(FF_EFFECT_PLAYING, &state->flags))
+ next_at = calculate_next_time(state);
+ else
+ next_at = state->play_at;
+
+ if (time_before_eq(now, next_at) &&
+ (++events == 1 || time_before(next_at, earliest)))
+ earliest = next_at;
+ }
+
+ if (!events) {
+ pr_debug("no actions\n");
+ del_timer(&ml->timer);
+ } else {
+ pr_debug("timer set\n");
+ mod_timer(&ml->timer, earliest);
+ }
+}
+
+/*
+ * Apply an envelope to a value
+ */
+static int apply_envelope(struct ml_effect_state *state, int value,
+ struct ff_envelope *envelope)
+{
+ struct ff_effect *effect = state->effect;
+ unsigned long now = jiffies;
+ int time_from_level;
+ int time_of_envelope;
+ int envelope_level;
+ int difference;
+
+ if (envelope->attack_length &&
+ time_before(now,
+ state->play_at + msecs_to_jiffies(envelope->attack_length))) {
+ pr_debug("value = 0x%x, attack_level = 0x%x\n",
+ value, envelope->attack_level);
+ time_from_level = jiffies_to_msecs(now - state->play_at);
+ time_of_envelope = envelope->attack_length;
+ envelope_level = min_t(__s16, envelope->attack_level, 0x7fff);
+
+ } else if (envelope->fade_length && effect->replay.length &&
+ time_after(now,
+ state->stop_at - msecs_to_jiffies(envelope->fade_length)) &&
+ time_before(now, state->stop_at)) {
+ time_from_level = jiffies_to_msecs(state->stop_at - now);
+ time_of_envelope = envelope->fade_length;
+ envelope_level = min_t(__s16, envelope->fade_level, 0x7fff);
+ } else
+ return value;
+
+ difference = abs(value) - envelope_level;
+
+ pr_debug("difference = %d\n", difference);
+ pr_debug("time_from_level = 0x%x\n", time_from_level);
+ pr_debug("time_of_envelope = 0x%x\n", time_of_envelope);
+
+ difference = difference * time_from_level / time_of_envelope;
+
+ pr_debug("difference = %d\n", difference);
+
+ return value < 0 ?
+ -(difference + envelope_level) : (difference + envelope_level);
+}
+
+/*
+ * Return the type the effect has to be converted into (memless devices)
+ */
+static int get_compatible_type(struct ff_device *ff, int effect_type)
+{
+
+ if (test_bit(effect_type, ff->ffbit))
+ return effect_type;
+
+ if (effect_type == FF_PERIODIC && test_bit(FF_RUMBLE, ff->ffbit))
+ return FF_RUMBLE;
+
+ pr_err("invalid type in get_compatible_type()\n");
+
+ return 0;
+}
+
+/*
+ * Only left/right direction should be used (under/over 0x8000) for
+ * forward/reverse motor direction (to keep calculation fast & simple).
+ */
+static u16 ml_calculate_direction(u16 direction, u16 force,
+ u16 new_direction, u16 new_force)
+{
+ if (!force)
+ return new_direction;
+ if (!new_force)
+ return direction;
+ return (((u32)(direction >> 1) * force +
+ (new_direction >> 1) * new_force) /
+ (force + new_force)) << 1;
+}
+
+/*
+ * Combine two effects and apply gain.
+ */
+static void ml_combine_effects(struct ff_effect *effect,
+ struct ml_effect_state *state,
+ int gain)
+{
+ struct ff_effect *new = state->effect;
+ unsigned int strong, weak, i;
+ int x, y;
+ fixp_t level;
+
+ switch (new->type) {
+ case FF_CONSTANT:
+ i = new->direction * 360 / 0xffff;
+ level = fixp_new16(apply_envelope(state,
+ new->u.constant.level,
+ &new->u.constant.envelope));
+ x = fixp_mult(fixp_sin(i), level) * gain / 0xffff;
+ y = fixp_mult(-fixp_cos(i), level) * gain / 0xffff;
+ /*
+ * here we abuse ff_ramp to hold x and y of constant force
+ * If in future any driver wants something else than x and y
+ * in s8, this should be changed to something more generic
+ */
+ effect->u.ramp.start_level =
+ clamp_val(effect->u.ramp.start_level + x, -0x80, 0x7f);
+ effect->u.ramp.end_level =
+ clamp_val(effect->u.ramp.end_level + y, -0x80, 0x7f);
+ break;
+
+ case FF_RUMBLE:
+ strong = (u32)new->u.rumble.strong_magnitude * gain / 0xffff;
+ weak = (u32)new->u.rumble.weak_magnitude * gain / 0xffff;
+
+ if (effect->u.rumble.strong_magnitude + strong)
+ effect->direction = ml_calculate_direction(
+ effect->direction,
+ effect->u.rumble.strong_magnitude,
+ new->direction, strong);
+ else if (effect->u.rumble.weak_magnitude + weak)
+ effect->direction = ml_calculate_direction(
+ effect->direction,
+ effect->u.rumble.weak_magnitude,
+ new->direction, weak);
+ else
+ effect->direction = 0;
+ effect->u.rumble.strong_magnitude =
+ min(strong + effect->u.rumble.strong_magnitude,
+ 0xffffU);
+ effect->u.rumble.weak_magnitude =
+ min(weak + effect->u.rumble.weak_magnitude, 0xffffU);
+ break;
+
+ case FF_PERIODIC:
+ i = apply_envelope(state, abs(new->u.periodic.magnitude),
+ &new->u.periodic.envelope);
+
+ /* here we also scale it 0x7fff => 0xffff */
+ i = i * gain / 0x7fff;
+
+ if (effect->u.rumble.strong_magnitude + i)
+ effect->direction = ml_calculate_direction(
+ effect->direction,
+ effect->u.rumble.strong_magnitude,
+ new->direction, i);
+ else
+ effect->direction = 0;
+ effect->u.rumble.strong_magnitude =
+ min(i + effect->u.rumble.strong_magnitude, 0xffffU);
+ effect->u.rumble.weak_magnitude =
+ min(i + effect->u.rumble.weak_magnitude, 0xffffU);
+ break;
+
+ default:
+ pr_err("invalid type in ml_combine_effects()\n");
+ break;
+ }
+
+}
+
+
+/*
+ * Because memoryless devices have only one effect per effect type active
+ * at one time we have to combine multiple effects into one
+ */
+static int ml_get_combo_effect(struct ml_device *ml,
+ unsigned long *effect_handled,
+ struct ff_effect *combo_effect)
+{
+ struct ff_effect *effect;
+ struct ml_effect_state *state;
+ int effect_type;
+ int i;
+
+ memset(combo_effect, 0, sizeof(struct ff_effect));
+
+ for (i = 0; i < FF_MEMLESS_EFFECTS; i++) {
+ if (__test_and_set_bit(i, effect_handled))
+ continue;
+
+ state = &ml->states[i];
+ effect = state->effect;
+
+ if (!test_bit(FF_EFFECT_STARTED, &state->flags))
+ continue;
+
+ if (time_before(jiffies, state->play_at))
+ continue;
+
+ /*
+ * here we have started effects that are either
+ * currently playing (and may need be aborted)
+ * or need to start playing.
+ */
+ effect_type = get_compatible_type(ml->dev->ff, effect->type);
+ if (combo_effect->type != effect_type) {
+ if (combo_effect->type != 0) {
+ __clear_bit(i, effect_handled);
+ continue;
+ }
+ combo_effect->type = effect_type;
+ }
+
+ if (__test_and_clear_bit(FF_EFFECT_ABORTING, &state->flags)) {
+ __clear_bit(FF_EFFECT_PLAYING, &state->flags);
+ __clear_bit(FF_EFFECT_STARTED, &state->flags);
+ } else if (effect->replay.length &&
+ time_after_eq(jiffies, state->stop_at)) {
+
+ __clear_bit(FF_EFFECT_PLAYING, &state->flags);
+
+ if (--state->count <= 0) {
+ __clear_bit(FF_EFFECT_STARTED, &state->flags);
+ } else {
+ state->play_at = jiffies +
+ msecs_to_jiffies(effect->replay.delay);
+ state->stop_at = state->play_at +
+ msecs_to_jiffies(effect->replay.length);
+ }
+ } else {
+ __set_bit(FF_EFFECT_PLAYING, &state->flags);
+ state->adj_at = jiffies;
+ ml_combine_effects(combo_effect, state, ml->gain);
+ }
+ }
+
+ return combo_effect->type != 0;
+}
+
+static void ml_play_effects(struct ml_device *ml)
+{
+ struct ff_effect effect;
+ DECLARE_BITMAP(handled_bm, FF_MEMLESS_EFFECTS);
+
+ memset(handled_bm, 0, sizeof(handled_bm));
+
+ while (ml_get_combo_effect(ml, handled_bm, &effect))
+ ml->play_effect(ml->dev, ml->private, &effect);
+
+ ml_schedule_timer(ml);
+}
+
+static void ml_effect_timer(unsigned long timer_data)
+{
+ struct input_dev *dev = (struct input_dev *)timer_data;
+ struct ml_device *ml = dev->ff->private;
+ unsigned long flags;
+
+ pr_debug("timer: updating effects\n");
+
+ spin_lock_irqsave(&dev->event_lock, flags);
+ ml_play_effects(ml);
+ spin_unlock_irqrestore(&dev->event_lock, flags);
+}
+
+/*
+ * Sets requested gain for FF effects. Called with dev->event_lock held.
+ */
+static void ml_ff_set_gain(struct input_dev *dev, u16 gain)
+{
+ struct ml_device *ml = dev->ff->private;
+ int i;
+
+ ml->gain = gain;
+
+ for (i = 0; i < FF_MEMLESS_EFFECTS; i++)
+ __clear_bit(FF_EFFECT_PLAYING, &ml->states[i].flags);
+
+ ml_play_effects(ml);
+}
+
+/*
+ * Start/stop specified FF effect. Called with dev->event_lock held.
+ */
+static int ml_ff_playback(struct input_dev *dev, int effect_id, int value)
+{
+ struct ml_device *ml = dev->ff->private;
+ struct ml_effect_state *state = &ml->states[effect_id];
+
+ if (value > 0) {
+ pr_debug("initiated play\n");
+
+ __set_bit(FF_EFFECT_STARTED, &state->flags);
+ state->count = value;
+ state->play_at = jiffies +
+ msecs_to_jiffies(state->effect->replay.delay);
+ state->stop_at = state->play_at +
+ msecs_to_jiffies(state->effect->replay.length);
+ state->adj_at = state->play_at;
+
+ } else {
+ pr_debug("initiated stop\n");
+
+ if (test_bit(FF_EFFECT_PLAYING, &state->flags))
+ __set_bit(FF_EFFECT_ABORTING, &state->flags);
+ else
+ __clear_bit(FF_EFFECT_STARTED, &state->flags);
+ }
+
+ ml_play_effects(ml);
+
+ return 0;
+}
+
+static int ml_ff_upload(struct input_dev *dev,
+ struct ff_effect *effect, struct ff_effect *old)
+{
+ struct ml_device *ml = dev->ff->private;
+ struct ml_effect_state *state = &ml->states[effect->id];
+
+ spin_lock_irq(&dev->event_lock);
+
+ if (test_bit(FF_EFFECT_STARTED, &state->flags)) {
+ __clear_bit(FF_EFFECT_PLAYING, &state->flags);
+ state->play_at = jiffies +
+ msecs_to_jiffies(state->effect->replay.delay);
+ state->stop_at = state->play_at +
+ msecs_to_jiffies(state->effect->replay.length);
+ state->adj_at = state->play_at;
+ ml_schedule_timer(ml);
+ }
+
+ spin_unlock_irq(&dev->event_lock);
+
+ return 0;
+}
+
+static void ml_ff_destroy(struct ff_device *ff)
+{
+ struct ml_device *ml = ff->private;
+
+ kfree(ml->private);
+}
+
+/**
+ * input_ff_create_memless() - create memoryless force-feedback device
+ * @dev: input device supporting force-feedback
+ * @data: driver-specific data to be passed into @play_effect
+ * @play_effect: driver-specific method for playing FF effect
+ */
+int input_ff_create_memless(struct input_dev *dev, void *data,
+ int (*play_effect)(struct input_dev *, void *, struct ff_effect *))
+{
+ struct ml_device *ml;
+ struct ff_device *ff;
+ int error;
+ int i;
+
+ ml = kzalloc(sizeof(struct ml_device), GFP_KERNEL);
+ if (!ml)
+ return -ENOMEM;
+
+ ml->dev = dev;
+ ml->private = data;
+ ml->play_effect = play_effect;
+ ml->gain = 0xffff;
+ setup_timer(&ml->timer, ml_effect_timer, (unsigned long)dev);
+
+ set_bit(FF_GAIN, dev->ffbit);
+
+ error = input_ff_create(dev, FF_MEMLESS_EFFECTS);
+ if (error) {
+ kfree(ml);
+ return error;
+ }
+
+ ff = dev->ff;
+ ff->private = ml;
+ ff->upload = ml_ff_upload;
+ ff->playback = ml_ff_playback;
+ ff->set_gain = ml_ff_set_gain;
+ ff->destroy = ml_ff_destroy;
+
+ /* we can emulate periodic effects with RUMBLE */
+ if (test_bit(FF_RUMBLE, ff->ffbit)) {
+ set_bit(FF_PERIODIC, dev->ffbit);
+ set_bit(FF_SINE, dev->ffbit);
+ set_bit(FF_TRIANGLE, dev->ffbit);
+ set_bit(FF_SQUARE, dev->ffbit);
+ }
+
+ for (i = 0; i < FF_MEMLESS_EFFECTS; i++)
+ ml->states[i].effect = &ff->effects[i];
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(input_ff_create_memless);
diff --git a/drivers/input/fixp-arith.h b/drivers/input/fixp-arith.h
new file mode 100644
index 0000000..3089d73
--- /dev/null
+++ b/drivers/input/fixp-arith.h
@@ -0,0 +1,87 @@
+#ifndef _FIXP_ARITH_H
+#define _FIXP_ARITH_H
+
+/*
+ * Simplistic fixed-point arithmetics.
+ * Hmm, I'm probably duplicating some code :(
+ *
+ * Copyright (c) 2002 Johann Deneux
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * Should you need to contact me, the author, you can do so by
+ * e-mail - mail your message to <johann.deneux@gmail.com>
+ */
+
+#include <linux/types.h>
+
+/* The type representing fixed-point values */
+typedef s16 fixp_t;
+
+#define FRAC_N 8
+#define FRAC_MASK ((1<<FRAC_N)-1)
+
+/* Not to be used directly. Use fixp_{cos,sin} */
+static const fixp_t cos_table[46] = {
+ 0x0100, 0x00FF, 0x00FF, 0x00FE, 0x00FD, 0x00FC, 0x00FA, 0x00F8,
+ 0x00F6, 0x00F3, 0x00F0, 0x00ED, 0x00E9, 0x00E6, 0x00E2, 0x00DD,
+ 0x00D9, 0x00D4, 0x00CF, 0x00C9, 0x00C4, 0x00BE, 0x00B8, 0x00B1,
+ 0x00AB, 0x00A4, 0x009D, 0x0096, 0x008F, 0x0087, 0x0080, 0x0078,
+ 0x0070, 0x0068, 0x005F, 0x0057, 0x004F, 0x0046, 0x003D, 0x0035,
+ 0x002C, 0x0023, 0x001A, 0x0011, 0x0008, 0x0000
+};
+
+
+/* a: 123 -> 123.0 */
+static inline fixp_t fixp_new(s16 a)
+{
+ return a<<FRAC_N;
+}
+
+/* a: 0xFFFF -> -1.0
+ 0x8000 -> 1.0
+ 0x0000 -> 0.0
+*/
+static inline fixp_t fixp_new16(s16 a)
+{
+ return ((s32)a)>>(16-FRAC_N);
+}
+
+static inline fixp_t fixp_cos(unsigned int degrees)
+{
+ int quadrant = (degrees / 90) & 3;
+ unsigned int i = degrees % 90;
+
+ if (quadrant == 1 || quadrant == 3)
+ i = 90 - i;
+
+ i >>= 1;
+
+ return (quadrant == 1 || quadrant == 2)? -cos_table[i] : cos_table[i];
+}
+
+static inline fixp_t fixp_sin(unsigned int degrees)
+{
+ return -fixp_cos(degrees + 90);
+}
+
+static inline fixp_t fixp_mult(fixp_t a, fixp_t b)
+{
+ return ((s32)(a*b))>>FRAC_N;
+}
+
+#endif
diff --git a/drivers/input/gameport/Kconfig b/drivers/input/gameport/Kconfig
new file mode 100644
index 0000000..d279454
--- /dev/null
+++ b/drivers/input/gameport/Kconfig
@@ -0,0 +1,63 @@
+#
+# Gameport configuration
+#
+config GAMEPORT
+ tristate "Gameport support"
+ ---help---
+ Gameport support is for the standard 15-pin PC gameport. If you
+ have a joystick, gamepad, gameport card, a soundcard with a gameport
+ or anything else that uses the gameport, say Y or M here and also to
+ at least one of the hardware specific drivers.
+
+ For Ensoniq AudioPCI (ES1370), AudioPCI 97 (ES1371), ESS Solo1,
+ S3 SonicVibes, Trident 4DWave, SiS7018, and ALi 5451 gameport
+ support is provided by the sound drivers, so you won't need any
+ from the below listed modules. You still need to say Y here.
+
+ If unsure, say Y.
+
+ To compile this driver as a module, choose M here: the
+ module will be called gameport.
+
+if GAMEPORT
+
+config GAMEPORT_NS558
+ tristate "Classic ISA and PnP gameport support"
+ help
+ Say Y here if you have an ISA or PnP gameport.
+
+ If unsure, say Y.
+
+ To compile this driver as a module, choose M here: the
+ module will be called ns558.
+
+config GAMEPORT_L4
+ tristate "PDPI Lightning 4 gamecard support"
+ help
+ Say Y here if you have a PDPI Lightning 4 gamecard.
+
+ To compile this driver as a module, choose M here: the
+ module will be called lightning.
+
+config GAMEPORT_EMU10K1
+ tristate "SB Live and Audigy gameport support"
+ depends on PCI
+ help
+ Say Y here if you have a SoundBlaster Live! or SoundBlaster
+ Audigy card and want to use its gameport.
+
+ To compile this driver as a module, choose M here: the
+ module will be called emu10k1-gp.
+
+config GAMEPORT_FM801
+ tristate "ForteMedia FM801 gameport support"
+ depends on PCI
+ help
+ Say Y here if you have ForteMedia FM801 PCI audio controller
+ (Abit AU10, Genius Sound Maker, HP Workstation zx2000,
+ and others), and want to use its gameport.
+
+ To compile this driver as a module, choose M here: the
+ module will be called fm801-gp.
+
+endif
diff --git a/drivers/input/gameport/Makefile b/drivers/input/gameport/Makefile
new file mode 100644
index 0000000..b6f6097
--- /dev/null
+++ b/drivers/input/gameport/Makefile
@@ -0,0 +1,11 @@
+#
+# Makefile for the gameport drivers.
+#
+
+# Each configuration option enables a list of files.
+
+obj-$(CONFIG_GAMEPORT) += gameport.o
+obj-$(CONFIG_GAMEPORT_EMU10K1) += emu10k1-gp.o
+obj-$(CONFIG_GAMEPORT_FM801) += fm801-gp.o
+obj-$(CONFIG_GAMEPORT_L4) += lightning.o
+obj-$(CONFIG_GAMEPORT_NS558) += ns558.o
diff --git a/drivers/input/gameport/emu10k1-gp.c b/drivers/input/gameport/emu10k1-gp.c
new file mode 100644
index 0000000..422aa0a
--- /dev/null
+++ b/drivers/input/gameport/emu10k1-gp.c
@@ -0,0 +1,139 @@
+/*
+ * Copyright (c) 2001 Vojtech Pavlik
+ */
+
+/*
+ * EMU10k1 - SB Live / Audigy - gameport driver for Linux
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * Should you need to contact me, the author, you can do so either by
+ * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
+ * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
+ */
+
+#include <asm/io.h>
+
+#include <linux/module.h>
+#include <linux/ioport.h>
+#include <linux/init.h>
+#include <linux/gameport.h>
+#include <linux/slab.h>
+#include <linux/pci.h>
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
+MODULE_DESCRIPTION("EMU10k1 gameport driver");
+MODULE_LICENSE("GPL");
+
+struct emu {
+ struct pci_dev *dev;
+ struct gameport *gameport;
+ int io;
+ int size;
+};
+
+static const struct pci_device_id emu_tbl[] = {
+
+ { 0x1102, 0x7002, PCI_ANY_ID, PCI_ANY_ID }, /* SB Live gameport */
+ { 0x1102, 0x7003, PCI_ANY_ID, PCI_ANY_ID }, /* Audigy gameport */
+ { 0x1102, 0x7004, PCI_ANY_ID, PCI_ANY_ID }, /* Dell SB Live */
+ { 0x1102, 0x7005, PCI_ANY_ID, PCI_ANY_ID }, /* Audigy LS gameport */
+ { 0, }
+};
+
+MODULE_DEVICE_TABLE(pci, emu_tbl);
+
+static int __devinit emu_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
+{
+ struct emu *emu;
+ struct gameport *port;
+ int error;
+
+ emu = kzalloc(sizeof(struct emu), GFP_KERNEL);
+ port = gameport_allocate_port();
+ if (!emu || !port) {
+ printk(KERN_ERR "emu10k1-gp: Memory allocation failed\n");
+ error = -ENOMEM;
+ goto err_out_free;
+ }
+
+ error = pci_enable_device(pdev);
+ if (error)
+ goto err_out_free;
+
+ emu->io = pci_resource_start(pdev, 0);
+ emu->size = pci_resource_len(pdev, 0);
+
+ emu->dev = pdev;
+ emu->gameport = port;
+
+ gameport_set_name(port, "EMU10K1");
+ gameport_set_phys(port, "pci%s/gameport0", pci_name(pdev));
+ port->dev.parent = &pdev->dev;
+ port->io = emu->io;
+
+ if (!request_region(emu->io, emu->size, "emu10k1-gp")) {
+ printk(KERN_ERR "emu10k1-gp: unable to grab region 0x%x-0x%x\n",
+ emu->io, emu->io + emu->size - 1);
+ error = -EBUSY;
+ goto err_out_disable_dev;
+ }
+
+ pci_set_drvdata(pdev, emu);
+
+ gameport_register_port(port);
+
+ return 0;
+
+ err_out_disable_dev:
+ pci_disable_device(pdev);
+ err_out_free:
+ gameport_free_port(port);
+ kfree(emu);
+ return error;
+}
+
+static void __devexit emu_remove(struct pci_dev *pdev)
+{
+ struct emu *emu = pci_get_drvdata(pdev);
+
+ gameport_unregister_port(emu->gameport);
+ release_region(emu->io, emu->size);
+ kfree(emu);
+
+ pci_disable_device(pdev);
+}
+
+static struct pci_driver emu_driver = {
+ .name = "Emu10k1_gameport",
+ .id_table = emu_tbl,
+ .probe = emu_probe,
+ .remove = __devexit_p(emu_remove),
+};
+
+static int __init emu_init(void)
+{
+ return pci_register_driver(&emu_driver);
+}
+
+static void __exit emu_exit(void)
+{
+ pci_unregister_driver(&emu_driver);
+}
+
+module_init(emu_init);
+module_exit(emu_exit);
diff --git a/drivers/input/gameport/fm801-gp.c b/drivers/input/gameport/fm801-gp.c
new file mode 100644
index 0000000..a3b70ff
--- /dev/null
+++ b/drivers/input/gameport/fm801-gp.c
@@ -0,0 +1,172 @@
+/*
+ * FM801 gameport driver for Linux
+ *
+ * Copyright (c) by Takashi Iwai <tiwai@suse.de>
+ *
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+#include <asm/io.h>
+#include <linux/delay.h>
+#include <linux/errno.h>
+#include <linux/ioport.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/gameport.h>
+
+#define PCI_VENDOR_ID_FORTEMEDIA 0x1319
+#define PCI_DEVICE_ID_FM801_GP 0x0802
+
+#define HAVE_COOKED
+
+struct fm801_gp {
+ struct gameport *gameport;
+ struct resource *res_port;
+};
+
+#ifdef HAVE_COOKED
+static int fm801_gp_cooked_read(struct gameport *gameport, int *axes, int *buttons)
+{
+ unsigned short w;
+
+ w = inw(gameport->io + 2);
+ *buttons = (~w >> 14) & 0x03;
+ axes[0] = (w == 0xffff) ? -1 : ((w & 0x1fff) << 5);
+ w = inw(gameport->io + 4);
+ axes[1] = (w == 0xffff) ? -1 : ((w & 0x1fff) << 5);
+ w = inw(gameport->io + 6);
+ *buttons |= ((~w >> 14) & 0x03) << 2;
+ axes[2] = (w == 0xffff) ? -1 : ((w & 0x1fff) << 5);
+ w = inw(gameport->io + 8);
+ axes[3] = (w == 0xffff) ? -1 : ((w & 0x1fff) << 5);
+ outw(0xff, gameport->io); /* reset */
+
+ return 0;
+}
+#endif
+
+static int fm801_gp_open(struct gameport *gameport, int mode)
+{
+ switch (mode) {
+#ifdef HAVE_COOKED
+ case GAMEPORT_MODE_COOKED:
+ return 0;
+#endif
+ case GAMEPORT_MODE_RAW:
+ return 0;
+ default:
+ return -1;
+ }
+
+ return 0;
+}
+
+static int __devinit fm801_gp_probe(struct pci_dev *pci, const struct pci_device_id *id)
+{
+ struct fm801_gp *gp;
+ struct gameport *port;
+ int error;
+
+ gp = kzalloc(sizeof(struct fm801_gp), GFP_KERNEL);
+ port = gameport_allocate_port();
+ if (!gp || !port) {
+ printk(KERN_ERR "fm801-gp: Memory allocation failed\n");
+ error = -ENOMEM;
+ goto err_out_free;
+ }
+
+ error = pci_enable_device(pci);
+ if (error)
+ goto err_out_free;
+
+ port->open = fm801_gp_open;
+#ifdef HAVE_COOKED
+ port->cooked_read = fm801_gp_cooked_read;
+#endif
+ gameport_set_name(port, "FM801");
+ gameport_set_phys(port, "pci%s/gameport0", pci_name(pci));
+ port->dev.parent = &pci->dev;
+ port->io = pci_resource_start(pci, 0);
+
+ gp->gameport = port;
+ gp->res_port = request_region(port->io, 0x10, "FM801 GP");
+ if (!gp->res_port) {
+ printk(KERN_DEBUG "fm801-gp: unable to grab region 0x%x-0x%x\n",
+ port->io, port->io + 0x0f);
+ error = -EBUSY;
+ goto err_out_disable_dev;
+ }
+
+ pci_set_drvdata(pci, gp);
+
+ outb(0x60, port->io + 0x0d); /* enable joystick 1 and 2 */
+ gameport_register_port(port);
+
+ return 0;
+
+ err_out_disable_dev:
+ pci_disable_device(pci);
+ err_out_free:
+ gameport_free_port(port);
+ kfree(gp);
+ return error;
+}
+
+static void __devexit fm801_gp_remove(struct pci_dev *pci)
+{
+ struct fm801_gp *gp = pci_get_drvdata(pci);
+
+ gameport_unregister_port(gp->gameport);
+ release_resource(gp->res_port);
+ kfree(gp);
+
+ pci_disable_device(pci);
+}
+
+static const struct pci_device_id fm801_gp_id_table[] = {
+ { PCI_VENDOR_ID_FORTEMEDIA, PCI_DEVICE_ID_FM801_GP, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
+ { 0 }
+};
+
+static struct pci_driver fm801_gp_driver = {
+ .name = "FM801_gameport",
+ .id_table = fm801_gp_id_table,
+ .probe = fm801_gp_probe,
+ .remove = __devexit_p(fm801_gp_remove),
+};
+
+static int __init fm801_gp_init(void)
+{
+ return pci_register_driver(&fm801_gp_driver);
+}
+
+static void __exit fm801_gp_exit(void)
+{
+ pci_unregister_driver(&fm801_gp_driver);
+}
+
+module_init(fm801_gp_init);
+module_exit(fm801_gp_exit);
+
+MODULE_DEVICE_TABLE(pci, fm801_gp_id_table);
+
+MODULE_DESCRIPTION("FM801 gameport driver");
+MODULE_AUTHOR("Takashi Iwai <tiwai@suse.de>");
+MODULE_LICENSE("GPL");
diff --git a/drivers/input/gameport/gameport.c b/drivers/input/gameport/gameport.c
new file mode 100644
index 0000000..c351aa4
--- /dev/null
+++ b/drivers/input/gameport/gameport.c
@@ -0,0 +1,819 @@
+/*
+ * Generic gameport layer
+ *
+ * Copyright (c) 1999-2002 Vojtech Pavlik
+ * Copyright (c) 2005 Dmitry Torokhov
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/stddef.h>
+#include <linux/module.h>
+#include <linux/ioport.h>
+#include <linux/init.h>
+#include <linux/gameport.h>
+#include <linux/slab.h>
+#include <linux/delay.h>
+#include <linux/workqueue.h>
+#include <linux/sched.h> /* HZ */
+#include <linux/mutex.h>
+
+/*#include <asm/io.h>*/
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
+MODULE_DESCRIPTION("Generic gameport layer");
+MODULE_LICENSE("GPL");
+
+/*
+ * gameport_mutex protects entire gameport subsystem and is taken
+ * every time gameport port or driver registrered or unregistered.
+ */
+static DEFINE_MUTEX(gameport_mutex);
+
+static LIST_HEAD(gameport_list);
+
+static struct bus_type gameport_bus;
+
+static void gameport_add_port(struct gameport *gameport);
+static void gameport_attach_driver(struct gameport_driver *drv);
+static void gameport_reconnect_port(struct gameport *gameport);
+static void gameport_disconnect_port(struct gameport *gameport);
+
+#if defined(__i386__)
+
+#include <linux/i8253.h>
+
+#define DELTA(x,y) ((y)-(x)+((y)<(x)?1193182/HZ:0))
+#define GET_TIME(x) do { x = get_time_pit(); } while (0)
+
+static unsigned int get_time_pit(void)
+{
+ unsigned long flags;
+ unsigned int count;
+
+ raw_spin_lock_irqsave(&i8253_lock, flags);
+ outb_p(0x00, 0x43);
+ count = inb_p(0x40);
+ count |= inb_p(0x40) << 8;
+ raw_spin_unlock_irqrestore(&i8253_lock, flags);
+
+ return count;
+}
+
+#endif
+
+
+
+/*
+ * gameport_measure_speed() measures the gameport i/o speed.
+ */
+
+static int gameport_measure_speed(struct gameport *gameport)
+{
+#if defined(__i386__)
+
+ unsigned int i, t, t1, t2, t3, tx;
+ unsigned long flags;
+
+ if (gameport_open(gameport, NULL, GAMEPORT_MODE_RAW))
+ return 0;
+
+ tx = 1 << 30;
+
+ for(i = 0; i < 50; i++) {
+ local_irq_save(flags);
+ GET_TIME(t1);
+ for (t = 0; t < 50; t++) gameport_read(gameport);
+ GET_TIME(t2);
+ GET_TIME(t3);
+ local_irq_restore(flags);
+ udelay(i * 10);
+ if ((t = DELTA(t2,t1) - DELTA(t3,t2)) < tx) tx = t;
+ }
+
+ gameport_close(gameport);
+ return 59659 / (tx < 1 ? 1 : tx);
+
+#elif defined (__x86_64__)
+
+ unsigned int i, t;
+ unsigned long tx, t1, t2, flags;
+
+ if (gameport_open(gameport, NULL, GAMEPORT_MODE_RAW))
+ return 0;
+
+ tx = 1 << 30;
+
+ for(i = 0; i < 50; i++) {
+ local_irq_save(flags);
+ rdtscl(t1);
+ for (t = 0; t < 50; t++) gameport_read(gameport);
+ rdtscl(t2);
+ local_irq_restore(flags);
+ udelay(i * 10);
+ if (t2 - t1 < tx) tx = t2 - t1;
+ }
+
+ gameport_close(gameport);
+ return (this_cpu_read(cpu_info.loops_per_jiffy) *
+ (unsigned long)HZ / (1000 / 50)) / (tx < 1 ? 1 : tx);
+
+#else
+
+ unsigned int j, t = 0;
+
+ if (gameport_open(gameport, NULL, GAMEPORT_MODE_RAW))
+ return 0;
+
+ j = jiffies; while (j == jiffies);
+ j = jiffies; while (j == jiffies) { t++; gameport_read(gameport); }
+
+ gameport_close(gameport);
+ return t * HZ / 1000;
+
+#endif
+}
+
+void gameport_start_polling(struct gameport *gameport)
+{
+ spin_lock(&gameport->timer_lock);
+
+ if (!gameport->poll_cnt++) {
+ BUG_ON(!gameport->poll_handler);
+ BUG_ON(!gameport->poll_interval);
+ mod_timer(&gameport->poll_timer, jiffies + msecs_to_jiffies(gameport->poll_interval));
+ }
+
+ spin_unlock(&gameport->timer_lock);
+}
+EXPORT_SYMBOL(gameport_start_polling);
+
+void gameport_stop_polling(struct gameport *gameport)
+{
+ spin_lock(&gameport->timer_lock);
+
+ if (!--gameport->poll_cnt)
+ del_timer(&gameport->poll_timer);
+
+ spin_unlock(&gameport->timer_lock);
+}
+EXPORT_SYMBOL(gameport_stop_polling);
+
+static void gameport_run_poll_handler(unsigned long d)
+{
+ struct gameport *gameport = (struct gameport *)d;
+
+ gameport->poll_handler(gameport);
+ if (gameport->poll_cnt)
+ mod_timer(&gameport->poll_timer, jiffies + msecs_to_jiffies(gameport->poll_interval));
+}
+
+/*
+ * Basic gameport -> driver core mappings
+ */
+
+static int gameport_bind_driver(struct gameport *gameport, struct gameport_driver *drv)
+{
+ int error;
+
+ gameport->dev.driver = &drv->driver;
+ if (drv->connect(gameport, drv)) {
+ gameport->dev.driver = NULL;
+ return -ENODEV;
+ }
+
+ error = device_bind_driver(&gameport->dev);
+ if (error) {
+ dev_warn(&gameport->dev,
+ "device_bind_driver() failed for %s (%s) and %s, error: %d\n",
+ gameport->phys, gameport->name,
+ drv->description, error);
+ drv->disconnect(gameport);
+ gameport->dev.driver = NULL;
+ return error;
+ }
+
+ return 0;
+}
+
+static void gameport_find_driver(struct gameport *gameport)
+{
+ int error;
+
+ error = device_attach(&gameport->dev);
+ if (error < 0)
+ dev_warn(&gameport->dev,
+ "device_attach() failed for %s (%s), error: %d\n",
+ gameport->phys, gameport->name, error);
+}
+
+
+/*
+ * Gameport event processing.
+ */
+
+enum gameport_event_type {
+ GAMEPORT_REGISTER_PORT,
+ GAMEPORT_ATTACH_DRIVER,
+};
+
+struct gameport_event {
+ enum gameport_event_type type;
+ void *object;
+ struct module *owner;
+ struct list_head node;
+};
+
+static DEFINE_SPINLOCK(gameport_event_lock); /* protects gameport_event_list */
+static LIST_HEAD(gameport_event_list);
+
+static struct gameport_event *gameport_get_event(void)
+{
+ struct gameport_event *event = NULL;
+ unsigned long flags;
+
+ spin_lock_irqsave(&gameport_event_lock, flags);
+
+ if (!list_empty(&gameport_event_list)) {
+ event = list_first_entry(&gameport_event_list,
+ struct gameport_event, node);
+ list_del_init(&event->node);
+ }
+
+ spin_unlock_irqrestore(&gameport_event_lock, flags);
+ return event;
+}
+
+static void gameport_free_event(struct gameport_event *event)
+{
+ module_put(event->owner);
+ kfree(event);
+}
+
+static void gameport_remove_duplicate_events(struct gameport_event *event)
+{
+ struct gameport_event *e, *next;
+ unsigned long flags;
+
+ spin_lock_irqsave(&gameport_event_lock, flags);
+
+ list_for_each_entry_safe(e, next, &gameport_event_list, node) {
+ if (event->object == e->object) {
+ /*
+ * If this event is of different type we should not
+ * look further - we only suppress duplicate events
+ * that were sent back-to-back.
+ */
+ if (event->type != e->type)
+ break;
+
+ list_del_init(&e->node);
+ gameport_free_event(e);
+ }
+ }
+
+ spin_unlock_irqrestore(&gameport_event_lock, flags);
+}
+
+
+static void gameport_handle_events(struct work_struct *work)
+{
+ struct gameport_event *event;
+
+ mutex_lock(&gameport_mutex);
+
+ /*
+ * Note that we handle only one event here to give swsusp
+ * a chance to freeze kgameportd thread. Gameport events
+ * should be pretty rare so we are not concerned about
+ * taking performance hit.
+ */
+ if ((event = gameport_get_event())) {
+
+ switch (event->type) {
+
+ case GAMEPORT_REGISTER_PORT:
+ gameport_add_port(event->object);
+ break;
+
+ case GAMEPORT_ATTACH_DRIVER:
+ gameport_attach_driver(event->object);
+ break;
+ }
+
+ gameport_remove_duplicate_events(event);
+ gameport_free_event(event);
+ }
+
+ mutex_unlock(&gameport_mutex);
+}
+
+static DECLARE_WORK(gameport_event_work, gameport_handle_events);
+
+static int gameport_queue_event(void *object, struct module *owner,
+ enum gameport_event_type event_type)
+{
+ unsigned long flags;
+ struct gameport_event *event;
+ int retval = 0;
+
+ spin_lock_irqsave(&gameport_event_lock, flags);
+
+ /*
+ * Scan event list for the other events for the same gameport port,
+ * starting with the most recent one. If event is the same we
+ * do not need add new one. If event is of different type we
+ * need to add this event and should not look further because
+ * we need to preserve sequence of distinct events.
+ */
+ list_for_each_entry_reverse(event, &gameport_event_list, node) {
+ if (event->object == object) {
+ if (event->type == event_type)
+ goto out;
+ break;
+ }
+ }
+
+ event = kmalloc(sizeof(struct gameport_event), GFP_ATOMIC);
+ if (!event) {
+ pr_err("Not enough memory to queue event %d\n", event_type);
+ retval = -ENOMEM;
+ goto out;
+ }
+
+ if (!try_module_get(owner)) {
+ pr_warning("Can't get module reference, dropping event %d\n",
+ event_type);
+ kfree(event);
+ retval = -EINVAL;
+ goto out;
+ }
+
+ event->type = event_type;
+ event->object = object;
+ event->owner = owner;
+
+ list_add_tail(&event->node, &gameport_event_list);
+ queue_work(system_long_wq, &gameport_event_work);
+
+out:
+ spin_unlock_irqrestore(&gameport_event_lock, flags);
+ return retval;
+}
+
+/*
+ * Remove all events that have been submitted for a given object,
+ * be it a gameport port or a driver.
+ */
+static void gameport_remove_pending_events(void *object)
+{
+ struct gameport_event *event, *next;
+ unsigned long flags;
+
+ spin_lock_irqsave(&gameport_event_lock, flags);
+
+ list_for_each_entry_safe(event, next, &gameport_event_list, node) {
+ if (event->object == object) {
+ list_del_init(&event->node);
+ gameport_free_event(event);
+ }
+ }
+
+ spin_unlock_irqrestore(&gameport_event_lock, flags);
+}
+
+/*
+ * Destroy child gameport port (if any) that has not been fully registered yet.
+ *
+ * Note that we rely on the fact that port can have only one child and therefore
+ * only one child registration request can be pending. Additionally, children
+ * are registered by driver's connect() handler so there can't be a grandchild
+ * pending registration together with a child.
+ */
+static struct gameport *gameport_get_pending_child(struct gameport *parent)
+{
+ struct gameport_event *event;
+ struct gameport *gameport, *child = NULL;
+ unsigned long flags;
+
+ spin_lock_irqsave(&gameport_event_lock, flags);
+
+ list_for_each_entry(event, &gameport_event_list, node) {
+ if (event->type == GAMEPORT_REGISTER_PORT) {
+ gameport = event->object;
+ if (gameport->parent == parent) {
+ child = gameport;
+ break;
+ }
+ }
+ }
+
+ spin_unlock_irqrestore(&gameport_event_lock, flags);
+ return child;
+}
+
+/*
+ * Gameport port operations
+ */
+
+static ssize_t gameport_show_description(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct gameport *gameport = to_gameport_port(dev);
+
+ return sprintf(buf, "%s\n", gameport->name);
+}
+
+static ssize_t gameport_rebind_driver(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
+{
+ struct gameport *gameport = to_gameport_port(dev);
+ struct device_driver *drv;
+ int error;
+
+ error = mutex_lock_interruptible(&gameport_mutex);
+ if (error)
+ return error;
+
+ if (!strncmp(buf, "none", count)) {
+ gameport_disconnect_port(gameport);
+ } else if (!strncmp(buf, "reconnect", count)) {
+ gameport_reconnect_port(gameport);
+ } else if (!strncmp(buf, "rescan", count)) {
+ gameport_disconnect_port(gameport);
+ gameport_find_driver(gameport);
+ } else if ((drv = driver_find(buf, &gameport_bus)) != NULL) {
+ gameport_disconnect_port(gameport);
+ error = gameport_bind_driver(gameport, to_gameport_driver(drv));
+ put_driver(drv);
+ } else {
+ error = -EINVAL;
+ }
+
+ mutex_unlock(&gameport_mutex);
+
+ return error ? error : count;
+}
+
+static struct device_attribute gameport_device_attrs[] = {
+ __ATTR(description, S_IRUGO, gameport_show_description, NULL),
+ __ATTR(drvctl, S_IWUSR, NULL, gameport_rebind_driver),
+ __ATTR_NULL
+};
+
+static void gameport_release_port(struct device *dev)
+{
+ struct gameport *gameport = to_gameport_port(dev);
+
+ kfree(gameport);
+ module_put(THIS_MODULE);
+}
+
+void gameport_set_phys(struct gameport *gameport, const char *fmt, ...)
+{
+ va_list args;
+
+ va_start(args, fmt);
+ vsnprintf(gameport->phys, sizeof(gameport->phys), fmt, args);
+ va_end(args);
+}
+EXPORT_SYMBOL(gameport_set_phys);
+
+/*
+ * Prepare gameport port for registration.
+ */
+static void gameport_init_port(struct gameport *gameport)
+{
+ static atomic_t gameport_no = ATOMIC_INIT(0);
+
+ __module_get(THIS_MODULE);
+
+ mutex_init(&gameport->drv_mutex);
+ device_initialize(&gameport->dev);
+ dev_set_name(&gameport->dev, "gameport%lu",
+ (unsigned long)atomic_inc_return(&gameport_no) - 1);
+ gameport->dev.bus = &gameport_bus;
+ gameport->dev.release = gameport_release_port;
+ if (gameport->parent)
+ gameport->dev.parent = &gameport->parent->dev;
+
+ INIT_LIST_HEAD(&gameport->node);
+ spin_lock_init(&gameport->timer_lock);
+ init_timer(&gameport->poll_timer);
+ gameport->poll_timer.function = gameport_run_poll_handler;
+ gameport->poll_timer.data = (unsigned long)gameport;
+}
+
+/*
+ * Complete gameport port registration.
+ * Driver core will attempt to find appropriate driver for the port.
+ */
+static void gameport_add_port(struct gameport *gameport)
+{
+ int error;
+
+ if (gameport->parent)
+ gameport->parent->child = gameport;
+
+ gameport->speed = gameport_measure_speed(gameport);
+
+ list_add_tail(&gameport->node, &gameport_list);
+
+ if (gameport->io)
+ dev_info(&gameport->dev, "%s is %s, io %#x, speed %dkHz\n",
+ gameport->name, gameport->phys, gameport->io, gameport->speed);
+ else
+ dev_info(&gameport->dev, "%s is %s, speed %dkHz\n",
+ gameport->name, gameport->phys, gameport->speed);
+
+ error = device_add(&gameport->dev);
+ if (error)
+ dev_err(&gameport->dev,
+ "device_add() failed for %s (%s), error: %d\n",
+ gameport->phys, gameport->name, error);
+}
+
+/*
+ * gameport_destroy_port() completes deregistration process and removes
+ * port from the system
+ */
+static void gameport_destroy_port(struct gameport *gameport)
+{
+ struct gameport *child;
+
+ child = gameport_get_pending_child(gameport);
+ if (child) {
+ gameport_remove_pending_events(child);
+ put_device(&child->dev);
+ }
+
+ if (gameport->parent) {
+ gameport->parent->child = NULL;
+ gameport->parent = NULL;
+ }
+
+ if (device_is_registered(&gameport->dev))
+ device_del(&gameport->dev);
+
+ list_del_init(&gameport->node);
+
+ gameport_remove_pending_events(gameport);
+ put_device(&gameport->dev);
+}
+
+/*
+ * Reconnect gameport port and all its children (re-initialize attached devices)
+ */
+static void gameport_reconnect_port(struct gameport *gameport)
+{
+ do {
+ if (!gameport->drv || !gameport->drv->reconnect || gameport->drv->reconnect(gameport)) {
+ gameport_disconnect_port(gameport);
+ gameport_find_driver(gameport);
+ /* Ok, old children are now gone, we are done */
+ break;
+ }
+ gameport = gameport->child;
+ } while (gameport);
+}
+
+/*
+ * gameport_disconnect_port() unbinds a port from its driver. As a side effect
+ * all child ports are unbound and destroyed.
+ */
+static void gameport_disconnect_port(struct gameport *gameport)
+{
+ struct gameport *s, *parent;
+
+ if (gameport->child) {
+ /*
+ * Children ports should be disconnected and destroyed
+ * first, staring with the leaf one, since we don't want
+ * to do recursion
+ */
+ for (s = gameport; s->child; s = s->child)
+ /* empty */;
+
+ do {
+ parent = s->parent;
+
+ device_release_driver(&s->dev);
+ gameport_destroy_port(s);
+ } while ((s = parent) != gameport);
+ }
+
+ /*
+ * Ok, no children left, now disconnect this port
+ */
+ device_release_driver(&gameport->dev);
+}
+
+/*
+ * Submits register request to kgameportd for subsequent execution.
+ * Note that port registration is always asynchronous.
+ */
+void __gameport_register_port(struct gameport *gameport, struct module *owner)
+{
+ gameport_init_port(gameport);
+ gameport_queue_event(gameport, owner, GAMEPORT_REGISTER_PORT);
+}
+EXPORT_SYMBOL(__gameport_register_port);
+
+/*
+ * Synchronously unregisters gameport port.
+ */
+void gameport_unregister_port(struct gameport *gameport)
+{
+ mutex_lock(&gameport_mutex);
+ gameport_disconnect_port(gameport);
+ gameport_destroy_port(gameport);
+ mutex_unlock(&gameport_mutex);
+}
+EXPORT_SYMBOL(gameport_unregister_port);
+
+
+/*
+ * Gameport driver operations
+ */
+
+static ssize_t gameport_driver_show_description(struct device_driver *drv, char *buf)
+{
+ struct gameport_driver *driver = to_gameport_driver(drv);
+ return sprintf(buf, "%s\n", driver->description ? driver->description : "(none)");
+}
+
+static struct driver_attribute gameport_driver_attrs[] = {
+ __ATTR(description, S_IRUGO, gameport_driver_show_description, NULL),
+ __ATTR_NULL
+};
+
+static int gameport_driver_probe(struct device *dev)
+{
+ struct gameport *gameport = to_gameport_port(dev);
+ struct gameport_driver *drv = to_gameport_driver(dev->driver);
+
+ drv->connect(gameport, drv);
+ return gameport->drv ? 0 : -ENODEV;
+}
+
+static int gameport_driver_remove(struct device *dev)
+{
+ struct gameport *gameport = to_gameport_port(dev);
+ struct gameport_driver *drv = to_gameport_driver(dev->driver);
+
+ drv->disconnect(gameport);
+ return 0;
+}
+
+static void gameport_attach_driver(struct gameport_driver *drv)
+{
+ int error;
+
+ error = driver_attach(&drv->driver);
+ if (error)
+ pr_err("driver_attach() failed for %s, error: %d\n",
+ drv->driver.name, error);
+}
+
+int __gameport_register_driver(struct gameport_driver *drv, struct module *owner,
+ const char *mod_name)
+{
+ int error;
+
+ drv->driver.bus = &gameport_bus;
+ drv->driver.owner = owner;
+ drv->driver.mod_name = mod_name;
+
+ /*
+ * Temporarily disable automatic binding because probing
+ * takes long time and we are better off doing it in kgameportd
+ */
+ drv->ignore = true;
+
+ error = driver_register(&drv->driver);
+ if (error) {
+ pr_err("driver_register() failed for %s, error: %d\n",
+ drv->driver.name, error);
+ return error;
+ }
+
+ /*
+ * Reset ignore flag and let kgameportd bind the driver to free ports
+ */
+ drv->ignore = false;
+ error = gameport_queue_event(drv, NULL, GAMEPORT_ATTACH_DRIVER);
+ if (error) {
+ driver_unregister(&drv->driver);
+ return error;
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL(__gameport_register_driver);
+
+void gameport_unregister_driver(struct gameport_driver *drv)
+{
+ struct gameport *gameport;
+
+ mutex_lock(&gameport_mutex);
+
+ drv->ignore = true; /* so gameport_find_driver ignores it */
+ gameport_remove_pending_events(drv);
+
+start_over:
+ list_for_each_entry(gameport, &gameport_list, node) {
+ if (gameport->drv == drv) {
+ gameport_disconnect_port(gameport);
+ gameport_find_driver(gameport);
+ /* we could've deleted some ports, restart */
+ goto start_over;
+ }
+ }
+
+ driver_unregister(&drv->driver);
+
+ mutex_unlock(&gameport_mutex);
+}
+EXPORT_SYMBOL(gameport_unregister_driver);
+
+static int gameport_bus_match(struct device *dev, struct device_driver *drv)
+{
+ struct gameport_driver *gameport_drv = to_gameport_driver(drv);
+
+ return !gameport_drv->ignore;
+}
+
+static struct bus_type gameport_bus = {
+ .name = "gameport",
+ .dev_attrs = gameport_device_attrs,
+ .drv_attrs = gameport_driver_attrs,
+ .match = gameport_bus_match,
+ .probe = gameport_driver_probe,
+ .remove = gameport_driver_remove,
+};
+
+static void gameport_set_drv(struct gameport *gameport, struct gameport_driver *drv)
+{
+ mutex_lock(&gameport->drv_mutex);
+ gameport->drv = drv;
+ mutex_unlock(&gameport->drv_mutex);
+}
+
+int gameport_open(struct gameport *gameport, struct gameport_driver *drv, int mode)
+{
+ if (gameport->open) {
+ if (gameport->open(gameport, mode)) {
+ return -1;
+ }
+ } else {
+ if (mode != GAMEPORT_MODE_RAW)
+ return -1;
+ }
+
+ gameport_set_drv(gameport, drv);
+ return 0;
+}
+EXPORT_SYMBOL(gameport_open);
+
+void gameport_close(struct gameport *gameport)
+{
+ del_timer_sync(&gameport->poll_timer);
+ gameport->poll_handler = NULL;
+ gameport->poll_interval = 0;
+ gameport_set_drv(gameport, NULL);
+ if (gameport->close)
+ gameport->close(gameport);
+}
+EXPORT_SYMBOL(gameport_close);
+
+static int __init gameport_init(void)
+{
+ int error;
+
+ error = bus_register(&gameport_bus);
+ if (error) {
+ pr_err("failed to register gameport bus, error: %d\n", error);
+ return error;
+ }
+
+
+ return 0;
+}
+
+static void __exit gameport_exit(void)
+{
+ bus_unregister(&gameport_bus);
+
+ /*
+ * There should not be any outstanding events but work may
+ * still be scheduled so simply cancel it.
+ */
+ cancel_work_sync(&gameport_event_work);
+}
+
+subsys_initcall(gameport_init);
+module_exit(gameport_exit);
diff --git a/drivers/input/gameport/lightning.c b/drivers/input/gameport/lightning.c
new file mode 100644
index 0000000..85d6ee0
--- /dev/null
+++ b/drivers/input/gameport/lightning.c
@@ -0,0 +1,341 @@
+/*
+ * Copyright (c) 1998-2001 Vojtech Pavlik
+ */
+
+/*
+ * PDPI Lightning 4 gamecard driver for Linux.
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * Should you need to contact me, the author, you can do so either by
+ * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
+ * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
+ */
+
+#include <asm/io.h>
+#include <linux/delay.h>
+#include <linux/errno.h>
+#include <linux/ioport.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/gameport.h>
+
+#define L4_PORT 0x201
+#define L4_SELECT_ANALOG 0xa4
+#define L4_SELECT_DIGITAL 0xa5
+#define L4_SELECT_SECONDARY 0xa6
+#define L4_CMD_ID 0x80
+#define L4_CMD_GETCAL 0x92
+#define L4_CMD_SETCAL 0x93
+#define L4_ID 0x04
+#define L4_BUSY 0x01
+#define L4_TIMEOUT 80 /* 80 us */
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
+MODULE_DESCRIPTION("PDPI Lightning 4 gamecard driver");
+MODULE_LICENSE("GPL");
+
+struct l4 {
+ struct gameport *gameport;
+ unsigned char port;
+};
+
+static struct l4 l4_ports[8];
+
+/*
+ * l4_wait_ready() waits for the L4 to become ready.
+ */
+
+static int l4_wait_ready(void)
+{
+ unsigned int t = L4_TIMEOUT;
+
+ while ((inb(L4_PORT) & L4_BUSY) && t > 0) t--;
+ return -(t <= 0);
+}
+
+/*
+ * l4_cooked_read() reads data from the Lightning 4.
+ */
+
+static int l4_cooked_read(struct gameport *gameport, int *axes, int *buttons)
+{
+ struct l4 *l4 = gameport->port_data;
+ unsigned char status;
+ int i, result = -1;
+
+ outb(L4_SELECT_ANALOG, L4_PORT);
+ outb(L4_SELECT_DIGITAL + (l4->port >> 2), L4_PORT);
+
+ if (inb(L4_PORT) & L4_BUSY) goto fail;
+ outb(l4->port & 3, L4_PORT);
+
+ if (l4_wait_ready()) goto fail;
+ status = inb(L4_PORT);
+
+ for (i = 0; i < 4; i++)
+ if (status & (1 << i)) {
+ if (l4_wait_ready()) goto fail;
+ axes[i] = inb(L4_PORT);
+ if (axes[i] > 252) axes[i] = -1;
+ }
+
+ if (status & 0x10) {
+ if (l4_wait_ready()) goto fail;
+ *buttons = inb(L4_PORT) & 0x0f;
+ }
+
+ result = 0;
+
+fail: outb(L4_SELECT_ANALOG, L4_PORT);
+ return result;
+}
+
+static int l4_open(struct gameport *gameport, int mode)
+{
+ struct l4 *l4 = gameport->port_data;
+
+ if (l4->port != 0 && mode != GAMEPORT_MODE_COOKED)
+ return -1;
+ outb(L4_SELECT_ANALOG, L4_PORT);
+ return 0;
+}
+
+/*
+ * l4_getcal() reads the L4 with calibration values.
+ */
+
+static int l4_getcal(int port, int *cal)
+{
+ int i, result = -1;
+
+ outb(L4_SELECT_ANALOG, L4_PORT);
+ outb(L4_SELECT_DIGITAL + (port >> 2), L4_PORT);
+ if (inb(L4_PORT) & L4_BUSY)
+ goto out;
+
+ outb(L4_CMD_GETCAL, L4_PORT);
+ if (l4_wait_ready())
+ goto out;
+
+ if (inb(L4_PORT) != L4_SELECT_DIGITAL + (port >> 2))
+ goto out;
+
+ if (l4_wait_ready())
+ goto out;
+ outb(port & 3, L4_PORT);
+
+ for (i = 0; i < 4; i++) {
+ if (l4_wait_ready())
+ goto out;
+ cal[i] = inb(L4_PORT);
+ }
+
+ result = 0;
+
+out: outb(L4_SELECT_ANALOG, L4_PORT);
+ return result;
+}
+
+/*
+ * l4_setcal() programs the L4 with calibration values.
+ */
+
+static int l4_setcal(int port, int *cal)
+{
+ int i, result = -1;
+
+ outb(L4_SELECT_ANALOG, L4_PORT);
+ outb(L4_SELECT_DIGITAL + (port >> 2), L4_PORT);
+ if (inb(L4_PORT) & L4_BUSY)
+ goto out;
+
+ outb(L4_CMD_SETCAL, L4_PORT);
+ if (l4_wait_ready())
+ goto out;
+
+ if (inb(L4_PORT) != L4_SELECT_DIGITAL + (port >> 2))
+ goto out;
+
+ if (l4_wait_ready())
+ goto out;
+ outb(port & 3, L4_PORT);
+
+ for (i = 0; i < 4; i++) {
+ if (l4_wait_ready())
+ goto out;
+ outb(cal[i], L4_PORT);
+ }
+
+ result = 0;
+
+out: outb(L4_SELECT_ANALOG, L4_PORT);
+ return result;
+}
+
+/*
+ * l4_calibrate() calibrates the L4 for the attached device, so
+ * that the device's resistance fits into the L4's 8-bit range.
+ */
+
+static int l4_calibrate(struct gameport *gameport, int *axes, int *max)
+{
+ int i, t;
+ int cal[4];
+ struct l4 *l4 = gameport->port_data;
+
+ if (l4_getcal(l4->port, cal))
+ return -1;
+
+ for (i = 0; i < 4; i++) {
+ t = (max[i] * cal[i]) / 200;
+ t = (t < 1) ? 1 : ((t > 255) ? 255 : t);
+ axes[i] = (axes[i] < 0) ? -1 : (axes[i] * cal[i]) / t;
+ axes[i] = (axes[i] > 252) ? 252 : axes[i];
+ cal[i] = t;
+ }
+
+ if (l4_setcal(l4->port, cal))
+ return -1;
+
+ return 0;
+}
+
+static int __init l4_create_ports(int card_no)
+{
+ struct l4 *l4;
+ struct gameport *port;
+ int i, idx;
+
+ for (i = 0; i < 4; i++) {
+
+ idx = card_no * 4 + i;
+ l4 = &l4_ports[idx];
+
+ if (!(l4->gameport = port = gameport_allocate_port())) {
+ printk(KERN_ERR "lightning: Memory allocation failed\n");
+ while (--i >= 0) {
+ gameport_free_port(l4->gameport);
+ l4->gameport = NULL;
+ }
+ return -ENOMEM;
+ }
+ l4->port = idx;
+
+ port->port_data = l4;
+ port->open = l4_open;
+ port->cooked_read = l4_cooked_read;
+ port->calibrate = l4_calibrate;
+
+ gameport_set_name(port, "PDPI Lightning 4");
+ gameport_set_phys(port, "isa%04x/gameport%d", L4_PORT, idx);
+
+ if (idx == 0)
+ port->io = L4_PORT;
+ }
+
+ return 0;
+}
+
+static int __init l4_add_card(int card_no)
+{
+ int cal[4] = { 255, 255, 255, 255 };
+ int i, rev, result;
+ struct l4 *l4;
+
+ outb(L4_SELECT_ANALOG, L4_PORT);
+ outb(L4_SELECT_DIGITAL + card_no, L4_PORT);
+
+ if (inb(L4_PORT) & L4_BUSY)
+ return -1;
+ outb(L4_CMD_ID, L4_PORT);
+
+ if (l4_wait_ready())
+ return -1;
+
+ if (inb(L4_PORT) != L4_SELECT_DIGITAL + card_no)
+ return -1;
+
+ if (l4_wait_ready())
+ return -1;
+ if (inb(L4_PORT) != L4_ID)
+ return -1;
+
+ if (l4_wait_ready())
+ return -1;
+ rev = inb(L4_PORT);
+
+ if (!rev)
+ return -1;
+
+ result = l4_create_ports(card_no);
+ if (result)
+ return result;
+
+ printk(KERN_INFO "gameport: PDPI Lightning 4 %s card v%d.%d at %#x\n",
+ card_no ? "secondary" : "primary", rev >> 4, rev, L4_PORT);
+
+ for (i = 0; i < 4; i++) {
+ l4 = &l4_ports[card_no * 4 + i];
+
+ if (rev > 0x28) /* on 2.9+ the setcal command works correctly */
+ l4_setcal(l4->port, cal);
+ gameport_register_port(l4->gameport);
+ }
+
+ return 0;
+}
+
+static int __init l4_init(void)
+{
+ int i, cards = 0;
+
+ if (!request_region(L4_PORT, 1, "lightning"))
+ return -EBUSY;
+
+ for (i = 0; i < 2; i++)
+ if (l4_add_card(i) == 0)
+ cards++;
+
+ outb(L4_SELECT_ANALOG, L4_PORT);
+
+ if (!cards) {
+ release_region(L4_PORT, 1);
+ return -ENODEV;
+ }
+
+ return 0;
+}
+
+static void __exit l4_exit(void)
+{
+ int i;
+ int cal[4] = { 59, 59, 59, 59 };
+
+ for (i = 0; i < 8; i++)
+ if (l4_ports[i].gameport) {
+ l4_setcal(l4_ports[i].port, cal);
+ gameport_unregister_port(l4_ports[i].gameport);
+ }
+
+ outb(L4_SELECT_ANALOG, L4_PORT);
+ release_region(L4_PORT, 1);
+}
+
+module_init(l4_init);
+module_exit(l4_exit);
diff --git a/drivers/input/gameport/ns558.c b/drivers/input/gameport/ns558.c
new file mode 100644
index 0000000..7c21784
--- /dev/null
+++ b/drivers/input/gameport/ns558.c
@@ -0,0 +1,286 @@
+/*
+ * Copyright (c) 1999-2001 Vojtech Pavlik
+ * Copyright (c) 1999 Brian Gerst
+ */
+
+/*
+ * NS558 based standard IBM game port driver for Linux
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * Should you need to contact me, the author, you can do so either by
+ * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
+ * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
+ */
+
+#include <asm/io.h>
+
+#include <linux/module.h>
+#include <linux/ioport.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/gameport.h>
+#include <linux/slab.h>
+#include <linux/pnp.h>
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
+MODULE_DESCRIPTION("Classic gameport (ISA/PnP) driver");
+MODULE_LICENSE("GPL");
+
+static int ns558_isa_portlist[] = { 0x201, 0x200, 0x202, 0x203, 0x204, 0x205, 0x207, 0x209,
+ 0x20b, 0x20c, 0x20e, 0x20f, 0x211, 0x219, 0x101, 0 };
+
+struct ns558 {
+ int type;
+ int io;
+ int size;
+ struct pnp_dev *dev;
+ struct gameport *gameport;
+ struct list_head node;
+};
+
+static LIST_HEAD(ns558_list);
+
+/*
+ * ns558_isa_probe() tries to find an isa gameport at the
+ * specified address, and also checks for mirrors.
+ * A joystick must be attached for this to work.
+ */
+
+static int ns558_isa_probe(int io)
+{
+ int i, j, b;
+ unsigned char c, u, v;
+ struct ns558 *ns558;
+ struct gameport *port;
+
+/*
+ * No one should be using this address.
+ */
+
+ if (!request_region(io, 1, "ns558-isa"))
+ return -EBUSY;
+
+/*
+ * We must not be able to write arbitrary values to the port.
+ * The lower two axis bits must be 1 after a write.
+ */
+
+ c = inb(io);
+ outb(~c & ~3, io);
+ if (~(u = v = inb(io)) & 3) {
+ outb(c, io);
+ release_region(io, 1);
+ return -ENODEV;
+ }
+/*
+ * After a trigger, there must be at least some bits changing.
+ */
+
+ for (i = 0; i < 1000; i++) v &= inb(io);
+
+ if (u == v) {
+ outb(c, io);
+ release_region(io, 1);
+ return -ENODEV;
+ }
+ msleep(3);
+/*
+ * After some time (4ms) the axes shouldn't change anymore.
+ */
+
+ u = inb(io);
+ for (i = 0; i < 1000; i++)
+ if ((u ^ inb(io)) & 0xf) {
+ outb(c, io);
+ release_region(io, 1);
+ return -ENODEV;
+ }
+/*
+ * And now find the number of mirrors of the port.
+ */
+
+ for (i = 1; i < 5; i++) {
+
+ release_region(io & (-1 << (i - 1)), (1 << (i - 1)));
+
+ if (!request_region(io & (-1 << i), (1 << i), "ns558-isa"))
+ break; /* Don't disturb anyone */
+
+ outb(0xff, io & (-1 << i));
+ for (j = b = 0; j < 1000; j++)
+ if (inb(io & (-1 << i)) != inb((io & (-1 << i)) + (1 << i) - 1)) b++;
+ msleep(3);
+
+ if (b > 300) { /* We allow 30% difference */
+ release_region(io & (-1 << i), (1 << i));
+ break;
+ }
+ }
+
+ i--;
+
+ if (i != 4) {
+ if (!request_region(io & (-1 << i), (1 << i), "ns558-isa"))
+ return -EBUSY;
+ }
+
+ ns558 = kzalloc(sizeof(struct ns558), GFP_KERNEL);
+ port = gameport_allocate_port();
+ if (!ns558 || !port) {
+ printk(KERN_ERR "ns558: Memory allocation failed.\n");
+ release_region(io & (-1 << i), (1 << i));
+ kfree(ns558);
+ gameport_free_port(port);
+ return -ENOMEM;
+ }
+
+ ns558->io = io;
+ ns558->size = 1 << i;
+ ns558->gameport = port;
+
+ port->io = io;
+ gameport_set_name(port, "NS558 ISA Gameport");
+ gameport_set_phys(port, "isa%04x/gameport0", io & (-1 << i));
+
+ gameport_register_port(port);
+
+ list_add(&ns558->node, &ns558_list);
+
+ return 0;
+}
+
+#ifdef CONFIG_PNP
+
+static const struct pnp_device_id pnp_devids[] = {
+ { .id = "@P@0001", .driver_data = 0 }, /* ALS 100 */
+ { .id = "@P@0020", .driver_data = 0 }, /* ALS 200 */
+ { .id = "@P@1001", .driver_data = 0 }, /* ALS 100+ */
+ { .id = "@P@2001", .driver_data = 0 }, /* ALS 120 */
+ { .id = "ASB16fd", .driver_data = 0 }, /* AdLib NSC16 */
+ { .id = "AZT3001", .driver_data = 0 }, /* AZT1008 */
+ { .id = "CDC0001", .driver_data = 0 }, /* Opl3-SAx */
+ { .id = "CSC0001", .driver_data = 0 }, /* CS4232 */
+ { .id = "CSC000f", .driver_data = 0 }, /* CS4236 */
+ { .id = "CSC0101", .driver_data = 0 }, /* CS4327 */
+ { .id = "CTL7001", .driver_data = 0 }, /* SB16 */
+ { .id = "CTL7002", .driver_data = 0 }, /* AWE64 */
+ { .id = "CTL7005", .driver_data = 0 }, /* Vibra16 */
+ { .id = "ENS2020", .driver_data = 0 }, /* SoundscapeVIVO */
+ { .id = "ESS0001", .driver_data = 0 }, /* ES1869 */
+ { .id = "ESS0005", .driver_data = 0 }, /* ES1878 */
+ { .id = "ESS6880", .driver_data = 0 }, /* ES688 */
+ { .id = "IBM0012", .driver_data = 0 }, /* CS4232 */
+ { .id = "OPT0001", .driver_data = 0 }, /* OPTi Audio16 */
+ { .id = "YMH0006", .driver_data = 0 }, /* Opl3-SA */
+ { .id = "YMH0022", .driver_data = 0 }, /* Opl3-SAx */
+ { .id = "PNPb02f", .driver_data = 0 }, /* Generic */
+ { .id = "", },
+};
+
+MODULE_DEVICE_TABLE(pnp, pnp_devids);
+
+static int ns558_pnp_probe(struct pnp_dev *dev, const struct pnp_device_id *did)
+{
+ int ioport, iolen;
+ struct ns558 *ns558;
+ struct gameport *port;
+
+ if (!pnp_port_valid(dev, 0)) {
+ printk(KERN_WARNING "ns558: No i/o ports on a gameport? Weird\n");
+ return -ENODEV;
+ }
+
+ ioport = pnp_port_start(dev, 0);
+ iolen = pnp_port_len(dev, 0);
+
+ if (!request_region(ioport, iolen, "ns558-pnp"))
+ return -EBUSY;
+
+ ns558 = kzalloc(sizeof(struct ns558), GFP_KERNEL);
+ port = gameport_allocate_port();
+ if (!ns558 || !port) {
+ printk(KERN_ERR "ns558: Memory allocation failed\n");
+ kfree(ns558);
+ gameport_free_port(port);
+ return -ENOMEM;
+ }
+
+ ns558->io = ioport;
+ ns558->size = iolen;
+ ns558->dev = dev;
+ ns558->gameport = port;
+
+ gameport_set_name(port, "NS558 PnP Gameport");
+ gameport_set_phys(port, "pnp%s/gameport0", dev_name(&dev->dev));
+ port->dev.parent = &dev->dev;
+ port->io = ioport;
+
+ gameport_register_port(port);
+
+ list_add_tail(&ns558->node, &ns558_list);
+ return 0;
+}
+
+static struct pnp_driver ns558_pnp_driver = {
+ .name = "ns558",
+ .id_table = pnp_devids,
+ .probe = ns558_pnp_probe,
+};
+
+#else
+
+static struct pnp_driver ns558_pnp_driver;
+
+#endif
+
+static int __init ns558_init(void)
+{
+ int i = 0;
+ int error;
+
+ error = pnp_register_driver(&ns558_pnp_driver);
+ if (error && error != -ENODEV) /* should be ENOSYS really */
+ return error;
+
+/*
+ * Probe ISA ports after PnP, so that PnP ports that are already
+ * enabled get detected as PnP. This may be suboptimal in multi-device
+ * configurations, but saves hassle with simple setups.
+ */
+
+ while (ns558_isa_portlist[i])
+ ns558_isa_probe(ns558_isa_portlist[i++]);
+
+ return list_empty(&ns558_list) && error ? -ENODEV : 0;
+}
+
+static void __exit ns558_exit(void)
+{
+ struct ns558 *ns558, *safe;
+
+ list_for_each_entry_safe(ns558, safe, &ns558_list, node) {
+ gameport_unregister_port(ns558->gameport);
+ release_region(ns558->io & ~(ns558->size - 1), ns558->size);
+ kfree(ns558);
+ }
+
+ pnp_unregister_driver(&ns558_pnp_driver);
+}
+
+module_init(ns558_init);
+module_exit(ns558_exit);
diff --git a/drivers/input/input-compat.c b/drivers/input/input-compat.c
new file mode 100644
index 0000000..e46a867
--- /dev/null
+++ b/drivers/input/input-compat.c
@@ -0,0 +1,136 @@
+/*
+ * 32bit compatibility wrappers for the input subsystem.
+ *
+ * Very heavily based on evdev.c - Copyright (c) 1999-2002 Vojtech Pavlik
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ */
+
+#include <linux/export.h>
+#include <asm/uaccess.h>
+#include "input-compat.h"
+
+#ifdef CONFIG_COMPAT
+
+int input_event_from_user(const char __user *buffer,
+ struct input_event *event)
+{
+ if (INPUT_COMPAT_TEST) {
+ struct input_event_compat compat_event;
+
+ if (copy_from_user(&compat_event, buffer,
+ sizeof(struct input_event_compat)))
+ return -EFAULT;
+
+ event->time.tv_sec = compat_event.time.tv_sec;
+ event->time.tv_usec = compat_event.time.tv_usec;
+ event->type = compat_event.type;
+ event->code = compat_event.code;
+ event->value = compat_event.value;
+
+ } else {
+ if (copy_from_user(event, buffer, sizeof(struct input_event)))
+ return -EFAULT;
+ }
+
+ return 0;
+}
+
+int input_event_to_user(char __user *buffer,
+ const struct input_event *event)
+{
+ if (INPUT_COMPAT_TEST) {
+ struct input_event_compat compat_event;
+
+ compat_event.time.tv_sec = event->time.tv_sec;
+ compat_event.time.tv_usec = event->time.tv_usec;
+ compat_event.type = event->type;
+ compat_event.code = event->code;
+ compat_event.value = event->value;
+
+ if (copy_to_user(buffer, &compat_event,
+ sizeof(struct input_event_compat)))
+ return -EFAULT;
+
+ } else {
+ if (copy_to_user(buffer, event, sizeof(struct input_event)))
+ return -EFAULT;
+ }
+
+ return 0;
+}
+
+int input_ff_effect_from_user(const char __user *buffer, size_t size,
+ struct ff_effect *effect)
+{
+ if (INPUT_COMPAT_TEST) {
+ struct ff_effect_compat *compat_effect;
+
+ if (size != sizeof(struct ff_effect_compat))
+ return -EINVAL;
+
+ /*
+ * It so happens that the pointer which needs to be changed
+ * is the last field in the structure, so we can retrieve the
+ * whole thing and replace just the pointer.
+ */
+ compat_effect = (struct ff_effect_compat *)effect;
+
+ if (copy_from_user(compat_effect, buffer,
+ sizeof(struct ff_effect_compat)))
+ return -EFAULT;
+
+ if (compat_effect->type == FF_PERIODIC &&
+ compat_effect->u.periodic.waveform == FF_CUSTOM)
+ effect->u.periodic.custom_data =
+ compat_ptr(compat_effect->u.periodic.custom_data);
+ } else {
+ if (size != sizeof(struct ff_effect))
+ return -EINVAL;
+
+ if (copy_from_user(effect, buffer, sizeof(struct ff_effect)))
+ return -EFAULT;
+ }
+
+ return 0;
+}
+
+#else
+
+int input_event_from_user(const char __user *buffer,
+ struct input_event *event)
+{
+ if (copy_from_user(event, buffer, sizeof(struct input_event)))
+ return -EFAULT;
+
+ return 0;
+}
+
+int input_event_to_user(char __user *buffer,
+ const struct input_event *event)
+{
+ if (copy_to_user(buffer, event, sizeof(struct input_event)))
+ return -EFAULT;
+
+ return 0;
+}
+
+int input_ff_effect_from_user(const char __user *buffer, size_t size,
+ struct ff_effect *effect)
+{
+ if (size != sizeof(struct ff_effect))
+ return -EINVAL;
+
+ if (copy_from_user(effect, buffer, sizeof(struct ff_effect)))
+ return -EFAULT;
+
+ return 0;
+}
+
+#endif /* CONFIG_COMPAT */
+
+EXPORT_SYMBOL_GPL(input_event_from_user);
+EXPORT_SYMBOL_GPL(input_event_to_user);
+EXPORT_SYMBOL_GPL(input_ff_effect_from_user);
diff --git a/drivers/input/input-compat.h b/drivers/input/input-compat.h
new file mode 100644
index 0000000..22be27b
--- /dev/null
+++ b/drivers/input/input-compat.h
@@ -0,0 +1,92 @@
+#ifndef _INPUT_COMPAT_H
+#define _INPUT_COMPAT_H
+
+/*
+ * 32bit compatibility wrappers for the input subsystem.
+ *
+ * Very heavily based on evdev.c - Copyright (c) 1999-2002 Vojtech Pavlik
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ */
+
+#include <linux/compiler.h>
+#include <linux/compat.h>
+#include <linux/input.h>
+
+#ifdef CONFIG_COMPAT
+
+/* Note to the author of this code: did it ever occur to
+ you why the ifdefs are needed? Think about it again. -AK */
+#if defined(CONFIG_X86_64) || defined(CONFIG_TILE)
+# define INPUT_COMPAT_TEST is_compat_task()
+#elif defined(CONFIG_S390)
+# define INPUT_COMPAT_TEST test_thread_flag(TIF_31BIT)
+#elif defined(CONFIG_MIPS)
+# define INPUT_COMPAT_TEST test_thread_flag(TIF_32BIT_ADDR)
+#else
+# define INPUT_COMPAT_TEST test_thread_flag(TIF_32BIT)
+#endif
+
+struct input_event_compat {
+ struct compat_timeval time;
+ __u16 type;
+ __u16 code;
+ __s32 value;
+};
+
+struct ff_periodic_effect_compat {
+ __u16 waveform;
+ __u16 period;
+ __s16 magnitude;
+ __s16 offset;
+ __u16 phase;
+
+ struct ff_envelope envelope;
+
+ __u32 custom_len;
+ compat_uptr_t custom_data;
+};
+
+struct ff_effect_compat {
+ __u16 type;
+ __s16 id;
+ __u16 direction;
+ struct ff_trigger trigger;
+ struct ff_replay replay;
+
+ union {
+ struct ff_constant_effect constant;
+ struct ff_ramp_effect ramp;
+ struct ff_periodic_effect_compat periodic;
+ struct ff_condition_effect condition[2]; /* One for each axis */
+ struct ff_rumble_effect rumble;
+ } u;
+};
+
+static inline size_t input_event_size(void)
+{
+ return INPUT_COMPAT_TEST ?
+ sizeof(struct input_event_compat) : sizeof(struct input_event);
+}
+
+#else
+
+static inline size_t input_event_size(void)
+{
+ return sizeof(struct input_event);
+}
+
+#endif /* CONFIG_COMPAT */
+
+int input_event_from_user(const char __user *buffer,
+ struct input_event *event);
+
+int input_event_to_user(char __user *buffer,
+ const struct input_event *event);
+
+int input_ff_effect_from_user(const char __user *buffer, size_t size,
+ struct ff_effect *effect);
+
+#endif /* _INPUT_COMPAT_H */
diff --git a/drivers/input/input-mt.c b/drivers/input/input-mt.c
new file mode 100644
index 0000000..f658086
--- /dev/null
+++ b/drivers/input/input-mt.c
@@ -0,0 +1,172 @@
+/*
+ * Input Multitouch Library
+ *
+ * Copyright (c) 2008-2010 Henrik Rydberg
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ */
+
+#include <linux/input/mt.h>
+#include <linux/export.h>
+#include <linux/slab.h>
+
+#define TRKID_SGN ((TRKID_MAX + 1) >> 1)
+
+/**
+ * input_mt_init_slots() - initialize MT input slots
+ * @dev: input device supporting MT events and finger tracking
+ * @num_slots: number of slots used by the device
+ *
+ * This function allocates all necessary memory for MT slot handling
+ * in the input device, prepares the ABS_MT_SLOT and
+ * ABS_MT_TRACKING_ID events for use and sets up appropriate buffers.
+ * May be called repeatedly. Returns -EINVAL if attempting to
+ * reinitialize with a different number of slots.
+ */
+int input_mt_init_slots(struct input_dev *dev, unsigned int num_slots)
+{
+ int i;
+
+ if (!num_slots)
+ return 0;
+ if (dev->mt)
+ return dev->mtsize != num_slots ? -EINVAL : 0;
+
+ dev->mt = kcalloc(num_slots, sizeof(struct input_mt_slot), GFP_KERNEL);
+ if (!dev->mt)
+ return -ENOMEM;
+
+ dev->mtsize = num_slots;
+ input_set_abs_params(dev, ABS_MT_SLOT, 0, num_slots - 1, 0, 0);
+ input_set_abs_params(dev, ABS_MT_TRACKING_ID, 0, TRKID_MAX, 0, 0);
+ input_set_events_per_packet(dev, 6 * num_slots);
+
+ /* Mark slots as 'unused' */
+ for (i = 0; i < num_slots; i++)
+ input_mt_set_value(&dev->mt[i], ABS_MT_TRACKING_ID, -1);
+
+ return 0;
+}
+EXPORT_SYMBOL(input_mt_init_slots);
+
+/**
+ * input_mt_destroy_slots() - frees the MT slots of the input device
+ * @dev: input device with allocated MT slots
+ *
+ * This function is only needed in error path as the input core will
+ * automatically free the MT slots when the device is destroyed.
+ */
+void input_mt_destroy_slots(struct input_dev *dev)
+{
+ kfree(dev->mt);
+ dev->mt = NULL;
+ dev->mtsize = 0;
+ dev->slot = 0;
+ dev->trkid = 0;
+}
+EXPORT_SYMBOL(input_mt_destroy_slots);
+
+/**
+ * input_mt_report_slot_state() - report contact state
+ * @dev: input device with allocated MT slots
+ * @tool_type: the tool type to use in this slot
+ * @active: true if contact is active, false otherwise
+ *
+ * Reports a contact via ABS_MT_TRACKING_ID, and optionally
+ * ABS_MT_TOOL_TYPE. If active is true and the slot is currently
+ * inactive, or if the tool type is changed, a new tracking id is
+ * assigned to the slot. The tool type is only reported if the
+ * corresponding absbit field is set.
+ */
+void input_mt_report_slot_state(struct input_dev *dev,
+ unsigned int tool_type, bool active)
+{
+ struct input_mt_slot *mt;
+ int id;
+
+ if (!dev->mt || !active) {
+ input_event(dev, EV_ABS, ABS_MT_TRACKING_ID, -1);
+ return;
+ }
+
+ mt = &dev->mt[dev->slot];
+ id = input_mt_get_value(mt, ABS_MT_TRACKING_ID);
+ if (id < 0 || input_mt_get_value(mt, ABS_MT_TOOL_TYPE) != tool_type)
+ id = input_mt_new_trkid(dev);
+
+ input_event(dev, EV_ABS, ABS_MT_TRACKING_ID, id);
+ input_event(dev, EV_ABS, ABS_MT_TOOL_TYPE, tool_type);
+}
+EXPORT_SYMBOL(input_mt_report_slot_state);
+
+/**
+ * input_mt_report_finger_count() - report contact count
+ * @dev: input device with allocated MT slots
+ * @count: the number of contacts
+ *
+ * Reports the contact count via BTN_TOOL_FINGER, BTN_TOOL_DOUBLETAP,
+ * BTN_TOOL_TRIPLETAP and BTN_TOOL_QUADTAP.
+ *
+ * The input core ensures only the KEY events already setup for
+ * this device will produce output.
+ */
+void input_mt_report_finger_count(struct input_dev *dev, int count)
+{
+ input_event(dev, EV_KEY, BTN_TOOL_FINGER, count == 1);
+ input_event(dev, EV_KEY, BTN_TOOL_DOUBLETAP, count == 2);
+ input_event(dev, EV_KEY, BTN_TOOL_TRIPLETAP, count == 3);
+ input_event(dev, EV_KEY, BTN_TOOL_QUADTAP, count == 4);
+ input_event(dev, EV_KEY, BTN_TOOL_QUINTTAP, count == 5);
+}
+EXPORT_SYMBOL(input_mt_report_finger_count);
+
+/**
+ * input_mt_report_pointer_emulation() - common pointer emulation
+ * @dev: input device with allocated MT slots
+ * @use_count: report number of active contacts as finger count
+ *
+ * Performs legacy pointer emulation via BTN_TOUCH, ABS_X, ABS_Y and
+ * ABS_PRESSURE. Touchpad finger count is emulated if use_count is true.
+ *
+ * The input core ensures only the KEY and ABS axes already setup for
+ * this device will produce output.
+ */
+void input_mt_report_pointer_emulation(struct input_dev *dev, bool use_count)
+{
+ struct input_mt_slot *oldest = 0;
+ int oldid = dev->trkid;
+ int count = 0;
+ int i;
+
+ for (i = 0; i < dev->mtsize; ++i) {
+ struct input_mt_slot *ps = &dev->mt[i];
+ int id = input_mt_get_value(ps, ABS_MT_TRACKING_ID);
+
+ if (id < 0)
+ continue;
+ if ((id - oldid) & TRKID_SGN) {
+ oldest = ps;
+ oldid = id;
+ }
+ count++;
+ }
+
+ input_event(dev, EV_KEY, BTN_TOUCH, count > 0);
+ if (use_count)
+ input_mt_report_finger_count(dev, count);
+
+ if (oldest) {
+ int x = input_mt_get_value(oldest, ABS_MT_POSITION_X);
+ int y = input_mt_get_value(oldest, ABS_MT_POSITION_Y);
+ int p = input_mt_get_value(oldest, ABS_MT_PRESSURE);
+
+ input_event(dev, EV_ABS, ABS_X, x);
+ input_event(dev, EV_ABS, ABS_Y, y);
+ input_event(dev, EV_ABS, ABS_PRESSURE, p);
+ } else {
+ input_event(dev, EV_ABS, ABS_PRESSURE, 0);
+ }
+}
+EXPORT_SYMBOL(input_mt_report_pointer_emulation);
diff --git a/drivers/input/input-polldev.c b/drivers/input/input-polldev.c
new file mode 100644
index 0000000..7dfe100
--- /dev/null
+++ b/drivers/input/input-polldev.c
@@ -0,0 +1,251 @@
+/*
+ * Generic implementation of a polled input device
+
+ * Copyright (c) 2007 Dmitry Torokhov
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/jiffies.h>
+#include <linux/slab.h>
+#include <linux/mutex.h>
+#include <linux/workqueue.h>
+#include <linux/module.h>
+#include <linux/input-polldev.h>
+
+MODULE_AUTHOR("Dmitry Torokhov <dtor@mail.ru>");
+MODULE_DESCRIPTION("Generic implementation of a polled input device");
+MODULE_LICENSE("GPL v2");
+MODULE_VERSION("0.1");
+
+static void input_polldev_queue_work(struct input_polled_dev *dev)
+{
+ unsigned long delay;
+
+ delay = msecs_to_jiffies(dev->poll_interval);
+ if (delay >= HZ)
+ delay = round_jiffies_relative(delay);
+
+ queue_delayed_work(system_freezable_wq, &dev->work, delay);
+}
+
+static void input_polled_device_work(struct work_struct *work)
+{
+ struct input_polled_dev *dev =
+ container_of(work, struct input_polled_dev, work.work);
+
+ dev->poll(dev);
+ input_polldev_queue_work(dev);
+}
+
+static int input_open_polled_device(struct input_dev *input)
+{
+ struct input_polled_dev *dev = input_get_drvdata(input);
+
+ if (dev->open)
+ dev->open(dev);
+
+ /* Only start polling if polling is enabled */
+ if (dev->poll_interval > 0) {
+ dev->poll(dev);
+ input_polldev_queue_work(dev);
+ }
+
+ return 0;
+}
+
+static void input_close_polled_device(struct input_dev *input)
+{
+ struct input_polled_dev *dev = input_get_drvdata(input);
+
+ cancel_delayed_work_sync(&dev->work);
+
+ if (dev->close)
+ dev->close(dev);
+}
+
+/* SYSFS interface */
+
+static ssize_t input_polldev_get_poll(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct input_polled_dev *polldev = dev_get_drvdata(dev);
+
+ return sprintf(buf, "%d\n", polldev->poll_interval);
+}
+
+static ssize_t input_polldev_set_poll(struct device *dev,
+ struct device_attribute *attr, const char *buf,
+ size_t count)
+{
+ struct input_polled_dev *polldev = dev_get_drvdata(dev);
+ struct input_dev *input = polldev->input;
+ unsigned long interval;
+
+ if (strict_strtoul(buf, 0, &interval))
+ return -EINVAL;
+
+ if (interval < polldev->poll_interval_min)
+ return -EINVAL;
+
+ if (interval > polldev->poll_interval_max)
+ return -EINVAL;
+
+ mutex_lock(&input->mutex);
+
+ polldev->poll_interval = interval;
+
+ if (input->users) {
+ cancel_delayed_work_sync(&polldev->work);
+ if (polldev->poll_interval > 0)
+ input_polldev_queue_work(polldev);
+ }
+
+ mutex_unlock(&input->mutex);
+
+ return count;
+}
+
+static DEVICE_ATTR(poll, S_IRUGO | S_IWUSR, input_polldev_get_poll,
+ input_polldev_set_poll);
+
+
+static ssize_t input_polldev_get_max(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct input_polled_dev *polldev = dev_get_drvdata(dev);
+
+ return sprintf(buf, "%d\n", polldev->poll_interval_max);
+}
+
+static DEVICE_ATTR(max, S_IRUGO, input_polldev_get_max, NULL);
+
+static ssize_t input_polldev_get_min(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct input_polled_dev *polldev = dev_get_drvdata(dev);
+
+ return sprintf(buf, "%d\n", polldev->poll_interval_min);
+}
+
+static DEVICE_ATTR(min, S_IRUGO, input_polldev_get_min, NULL);
+
+static struct attribute *sysfs_attrs[] = {
+ &dev_attr_poll.attr,
+ &dev_attr_max.attr,
+ &dev_attr_min.attr,
+ NULL
+};
+
+static struct attribute_group input_polldev_attribute_group = {
+ .attrs = sysfs_attrs
+};
+
+/**
+ * input_allocate_polled_device - allocate memory for polled device
+ *
+ * The function allocates memory for a polled device and also
+ * for an input device associated with this polled device.
+ */
+struct input_polled_dev *input_allocate_polled_device(void)
+{
+ struct input_polled_dev *dev;
+
+ dev = kzalloc(sizeof(struct input_polled_dev), GFP_KERNEL);
+ if (!dev)
+ return NULL;
+
+ dev->input = input_allocate_device();
+ if (!dev->input) {
+ kfree(dev);
+ return NULL;
+ }
+
+ return dev;
+}
+EXPORT_SYMBOL(input_allocate_polled_device);
+
+/**
+ * input_free_polled_device - free memory allocated for polled device
+ * @dev: device to free
+ *
+ * The function frees memory allocated for polling device and drops
+ * reference to the associated input device.
+ */
+void input_free_polled_device(struct input_polled_dev *dev)
+{
+ if (dev) {
+ input_free_device(dev->input);
+ kfree(dev);
+ }
+}
+EXPORT_SYMBOL(input_free_polled_device);
+
+/**
+ * input_register_polled_device - register polled device
+ * @dev: device to register
+ *
+ * The function registers previously initialized polled input device
+ * with input layer. The device should be allocated with call to
+ * input_allocate_polled_device(). Callers should also set up poll()
+ * method and set up capabilities (id, name, phys, bits) of the
+ * corresponding input_dev structure.
+ */
+int input_register_polled_device(struct input_polled_dev *dev)
+{
+ struct input_dev *input = dev->input;
+ int error;
+
+ input_set_drvdata(input, dev);
+ INIT_DELAYED_WORK(&dev->work, input_polled_device_work);
+ if (!dev->poll_interval)
+ dev->poll_interval = 500;
+ if (!dev->poll_interval_max)
+ dev->poll_interval_max = dev->poll_interval;
+ input->open = input_open_polled_device;
+ input->close = input_close_polled_device;
+
+ error = input_register_device(input);
+ if (error)
+ return error;
+
+ error = sysfs_create_group(&input->dev.kobj,
+ &input_polldev_attribute_group);
+ if (error) {
+ input_unregister_device(input);
+ return error;
+ }
+
+ /*
+ * Take extra reference to the underlying input device so
+ * that it survives call to input_unregister_polled_device()
+ * and is deleted only after input_free_polled_device()
+ * has been invoked. This is needed to ease task of freeing
+ * sparse keymaps.
+ */
+ input_get_device(input);
+
+ return 0;
+}
+EXPORT_SYMBOL(input_register_polled_device);
+
+/**
+ * input_unregister_polled_device - unregister polled device
+ * @dev: device to unregister
+ *
+ * The function unregisters previously registered polled input
+ * device from input layer. Polling is stopped and device is
+ * ready to be freed with call to input_free_polled_device().
+ */
+void input_unregister_polled_device(struct input_polled_dev *dev)
+{
+ sysfs_remove_group(&dev->input->dev.kobj,
+ &input_polldev_attribute_group);
+
+ input_unregister_device(dev->input);
+}
+EXPORT_SYMBOL(input_unregister_polled_device);
diff --git a/drivers/input/input.c b/drivers/input/input.c
new file mode 100644
index 0000000..da38d97
--- /dev/null
+++ b/drivers/input/input.c
@@ -0,0 +1,2174 @@
+/*
+ * The input core
+ *
+ * Copyright (c) 1999-2002 Vojtech Pavlik
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ */
+
+#define pr_fmt(fmt) KBUILD_BASENAME ": " fmt
+
+#include <linux/init.h>
+#include <linux/types.h>
+#include <linux/input/mt.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/random.h>
+#include <linux/major.h>
+#include <linux/proc_fs.h>
+#include <linux/sched.h>
+#include <linux/seq_file.h>
+#include <linux/poll.h>
+#include <linux/device.h>
+#include <linux/mutex.h>
+#include <linux/rcupdate.h>
+#include "input-compat.h"
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@suse.cz>");
+MODULE_DESCRIPTION("Input core");
+MODULE_LICENSE("GPL");
+
+#define INPUT_DEVICES 256
+
+static LIST_HEAD(input_dev_list);
+static LIST_HEAD(input_handler_list);
+
+/*
+ * input_mutex protects access to both input_dev_list and input_handler_list.
+ * This also causes input_[un]register_device and input_[un]register_handler
+ * be mutually exclusive which simplifies locking in drivers implementing
+ * input handlers.
+ */
+static DEFINE_MUTEX(input_mutex);
+
+static struct input_handler *input_table[8];
+
+static inline int is_event_supported(unsigned int code,
+ unsigned long *bm, unsigned int max)
+{
+ return code <= max && test_bit(code, bm);
+}
+
+static int input_defuzz_abs_event(int value, int old_val, int fuzz)
+{
+ if (fuzz) {
+ if (value > old_val - fuzz / 2 && value < old_val + fuzz / 2)
+ return old_val;
+
+ if (value > old_val - fuzz && value < old_val + fuzz)
+ return (old_val * 3 + value) / 4;
+
+ if (value > old_val - fuzz * 2 && value < old_val + fuzz * 2)
+ return (old_val + value) / 2;
+ }
+
+ return value;
+}
+
+/*
+ * Pass event first through all filters and then, if event has not been
+ * filtered out, through all open handles. This function is called with
+ * dev->event_lock held and interrupts disabled.
+ */
+static void input_pass_event(struct input_dev *dev,
+ unsigned int type, unsigned int code, int value)
+{
+ struct input_handler *handler;
+ struct input_handle *handle;
+
+ rcu_read_lock();
+
+ handle = rcu_dereference(dev->grab);
+ if (handle)
+ handle->handler->event(handle, type, code, value);
+ else {
+ bool filtered = false;
+
+ list_for_each_entry_rcu(handle, &dev->h_list, d_node) {
+ if (!handle->open)
+ continue;
+
+ handler = handle->handler;
+ if (!handler->filter) {
+ if (filtered)
+ break;
+
+ handler->event(handle, type, code, value);
+
+ } else if (handler->filter(handle, type, code, value))
+ filtered = true;
+ }
+ }
+
+ rcu_read_unlock();
+}
+
+/*
+ * Generate software autorepeat event. Note that we take
+ * dev->event_lock here to avoid racing with input_event
+ * which may cause keys get "stuck".
+ */
+static void input_repeat_key(unsigned long data)
+{
+ struct input_dev *dev = (void *) data;
+ unsigned long flags;
+
+ spin_lock_irqsave(&dev->event_lock, flags);
+
+ if (test_bit(dev->repeat_key, dev->key) &&
+ is_event_supported(dev->repeat_key, dev->keybit, KEY_MAX)) {
+
+ input_pass_event(dev, EV_KEY, dev->repeat_key, 2);
+
+ if (dev->sync) {
+ /*
+ * Only send SYN_REPORT if we are not in a middle
+ * of driver parsing a new hardware packet.
+ * Otherwise assume that the driver will send
+ * SYN_REPORT once it's done.
+ */
+ input_pass_event(dev, EV_SYN, SYN_REPORT, 1);
+ }
+
+ if (dev->rep[REP_PERIOD])
+ mod_timer(&dev->timer, jiffies +
+ msecs_to_jiffies(dev->rep[REP_PERIOD]));
+ }
+
+ spin_unlock_irqrestore(&dev->event_lock, flags);
+}
+
+static void input_start_autorepeat(struct input_dev *dev, int code)
+{
+ if (test_bit(EV_REP, dev->evbit) &&
+ dev->rep[REP_PERIOD] && dev->rep[REP_DELAY] &&
+ dev->timer.data) {
+ dev->repeat_key = code;
+ mod_timer(&dev->timer,
+ jiffies + msecs_to_jiffies(dev->rep[REP_DELAY]));
+ }
+}
+
+static void input_stop_autorepeat(struct input_dev *dev)
+{
+ del_timer(&dev->timer);
+}
+
+#define INPUT_IGNORE_EVENT 0
+#define INPUT_PASS_TO_HANDLERS 1
+#define INPUT_PASS_TO_DEVICE 2
+#define INPUT_PASS_TO_ALL (INPUT_PASS_TO_HANDLERS | INPUT_PASS_TO_DEVICE)
+
+static int input_handle_abs_event(struct input_dev *dev,
+ unsigned int code, int *pval)
+{
+ bool is_mt_event;
+ int *pold;
+
+ if (code == ABS_MT_SLOT) {
+ /*
+ * "Stage" the event; we'll flush it later, when we
+ * get actual touch data.
+ */
+ if (*pval >= 0 && *pval < dev->mtsize)
+ dev->slot = *pval;
+
+ return INPUT_IGNORE_EVENT;
+ }
+
+ is_mt_event = code >= ABS_MT_FIRST && code <= ABS_MT_LAST;
+
+ if (!is_mt_event) {
+ pold = &dev->absinfo[code].value;
+ } else if (dev->mt) {
+ struct input_mt_slot *mtslot = &dev->mt[dev->slot];
+ pold = &mtslot->abs[code - ABS_MT_FIRST];
+ } else {
+ /*
+ * Bypass filtering for multi-touch events when
+ * not employing slots.
+ */
+ pold = NULL;
+ }
+
+ if (pold) {
+ *pval = input_defuzz_abs_event(*pval, *pold,
+ dev->absinfo[code].fuzz);
+ if (*pold == *pval)
+ return INPUT_IGNORE_EVENT;
+
+ *pold = *pval;
+ }
+
+ /* Flush pending "slot" event */
+ if (is_mt_event && dev->slot != input_abs_get_val(dev, ABS_MT_SLOT)) {
+ input_abs_set_val(dev, ABS_MT_SLOT, dev->slot);
+ input_pass_event(dev, EV_ABS, ABS_MT_SLOT, dev->slot);
+ }
+
+ return INPUT_PASS_TO_HANDLERS;
+}
+
+static void input_handle_event(struct input_dev *dev,
+ unsigned int type, unsigned int code, int value)
+{
+ int disposition = INPUT_IGNORE_EVENT;
+
+ switch (type) {
+
+ case EV_SYN:
+ switch (code) {
+ case SYN_CONFIG:
+ disposition = INPUT_PASS_TO_ALL;
+ break;
+
+ case SYN_REPORT:
+ if (!dev->sync) {
+ dev->sync = true;
+ disposition = INPUT_PASS_TO_HANDLERS;
+ }
+ break;
+ case SYN_MT_REPORT:
+ dev->sync = false;
+ disposition = INPUT_PASS_TO_HANDLERS;
+ break;
+ }
+ break;
+
+ case EV_KEY:
+ if (is_event_supported(code, dev->keybit, KEY_MAX) &&
+ !!test_bit(code, dev->key) != value) {
+
+ if (value != 2) {
+ __change_bit(code, dev->key);
+ if (value)
+ input_start_autorepeat(dev, code);
+ else
+ input_stop_autorepeat(dev);
+ }
+
+ disposition = INPUT_PASS_TO_HANDLERS;
+ }
+ break;
+
+ case EV_SW:
+ if (is_event_supported(code, dev->swbit, SW_MAX) &&
+ !!test_bit(code, dev->sw) != value) {
+
+ __change_bit(code, dev->sw);
+ disposition = INPUT_PASS_TO_HANDLERS;
+ }
+ break;
+
+ case EV_ABS:
+ if (is_event_supported(code, dev->absbit, ABS_MAX))
+ disposition = input_handle_abs_event(dev, code, &value);
+
+ break;
+
+ case EV_REL:
+ if (is_event_supported(code, dev->relbit, REL_MAX) && value)
+ disposition = INPUT_PASS_TO_HANDLERS;
+
+ break;
+
+ case EV_MSC:
+ if (is_event_supported(code, dev->mscbit, MSC_MAX))
+ disposition = INPUT_PASS_TO_ALL;
+
+ break;
+
+ case EV_LED:
+ if (is_event_supported(code, dev->ledbit, LED_MAX) &&
+ !!test_bit(code, dev->led) != value) {
+
+ __change_bit(code, dev->led);
+ disposition = INPUT_PASS_TO_ALL;
+ }
+ break;
+
+ case EV_SND:
+ if (is_event_supported(code, dev->sndbit, SND_MAX)) {
+
+ if (!!test_bit(code, dev->snd) != !!value)
+ __change_bit(code, dev->snd);
+ disposition = INPUT_PASS_TO_ALL;
+ }
+ break;
+
+ case EV_REP:
+ if (code <= REP_MAX && value >= 0 && dev->rep[code] != value) {
+ dev->rep[code] = value;
+ disposition = INPUT_PASS_TO_ALL;
+ }
+ break;
+
+ case EV_FF:
+ if (value >= 0)
+ disposition = INPUT_PASS_TO_ALL;
+ break;
+
+ case EV_PWR:
+ disposition = INPUT_PASS_TO_ALL;
+ break;
+ }
+
+ if (disposition != INPUT_IGNORE_EVENT && type != EV_SYN)
+ dev->sync = false;
+
+ if ((disposition & INPUT_PASS_TO_DEVICE) && dev->event)
+ dev->event(dev, type, code, value);
+
+ if (disposition & INPUT_PASS_TO_HANDLERS)
+ input_pass_event(dev, type, code, value);
+}
+
+/**
+ * input_event() - report new input event
+ * @dev: device that generated the event
+ * @type: type of the event
+ * @code: event code
+ * @value: value of the event
+ *
+ * This function should be used by drivers implementing various input
+ * devices to report input events. See also input_inject_event().
+ *
+ * NOTE: input_event() may be safely used right after input device was
+ * allocated with input_allocate_device(), even before it is registered
+ * with input_register_device(), but the event will not reach any of the
+ * input handlers. Such early invocation of input_event() may be used
+ * to 'seed' initial state of a switch or initial position of absolute
+ * axis, etc.
+ */
+void input_event(struct input_dev *dev,
+ unsigned int type, unsigned int code, int value)
+{
+ unsigned long flags;
+
+ if (is_event_supported(type, dev->evbit, EV_MAX)) {
+
+ spin_lock_irqsave(&dev->event_lock, flags);
+ add_input_randomness(type, code, value);
+ input_handle_event(dev, type, code, value);
+ spin_unlock_irqrestore(&dev->event_lock, flags);
+ }
+}
+EXPORT_SYMBOL(input_event);
+
+/**
+ * input_inject_event() - send input event from input handler
+ * @handle: input handle to send event through
+ * @type: type of the event
+ * @code: event code
+ * @value: value of the event
+ *
+ * Similar to input_event() but will ignore event if device is
+ * "grabbed" and handle injecting event is not the one that owns
+ * the device.
+ */
+void input_inject_event(struct input_handle *handle,
+ unsigned int type, unsigned int code, int value)
+{
+ struct input_dev *dev = handle->dev;
+ struct input_handle *grab;
+ unsigned long flags;
+
+ if (is_event_supported(type, dev->evbit, EV_MAX)) {
+ spin_lock_irqsave(&dev->event_lock, flags);
+
+ rcu_read_lock();
+ grab = rcu_dereference(dev->grab);
+ if (!grab || grab == handle)
+ input_handle_event(dev, type, code, value);
+ rcu_read_unlock();
+
+ spin_unlock_irqrestore(&dev->event_lock, flags);
+ }
+}
+EXPORT_SYMBOL(input_inject_event);
+
+/**
+ * input_alloc_absinfo - allocates array of input_absinfo structs
+ * @dev: the input device emitting absolute events
+ *
+ * If the absinfo struct the caller asked for is already allocated, this
+ * functions will not do anything.
+ */
+void input_alloc_absinfo(struct input_dev *dev)
+{
+ if (!dev->absinfo)
+ dev->absinfo = kcalloc(ABS_CNT, sizeof(struct input_absinfo),
+ GFP_KERNEL);
+
+ WARN(!dev->absinfo, "%s(): kcalloc() failed?\n", __func__);
+}
+EXPORT_SYMBOL(input_alloc_absinfo);
+
+void input_set_abs_params(struct input_dev *dev, unsigned int axis,
+ int min, int max, int fuzz, int flat)
+{
+ struct input_absinfo *absinfo;
+
+ input_alloc_absinfo(dev);
+ if (!dev->absinfo)
+ return;
+
+ absinfo = &dev->absinfo[axis];
+ absinfo->minimum = min;
+ absinfo->maximum = max;
+ absinfo->fuzz = fuzz;
+ absinfo->flat = flat;
+
+ dev->absbit[BIT_WORD(axis)] |= BIT_MASK(axis);
+}
+EXPORT_SYMBOL(input_set_abs_params);
+
+
+/**
+ * input_grab_device - grabs device for exclusive use
+ * @handle: input handle that wants to own the device
+ *
+ * When a device is grabbed by an input handle all events generated by
+ * the device are delivered only to this handle. Also events injected
+ * by other input handles are ignored while device is grabbed.
+ */
+int input_grab_device(struct input_handle *handle)
+{
+ struct input_dev *dev = handle->dev;
+ int retval;
+
+ retval = mutex_lock_interruptible(&dev->mutex);
+ if (retval)
+ return retval;
+
+ if (dev->grab) {
+ retval = -EBUSY;
+ goto out;
+ }
+
+ rcu_assign_pointer(dev->grab, handle);
+
+ out:
+ mutex_unlock(&dev->mutex);
+ return retval;
+}
+EXPORT_SYMBOL(input_grab_device);
+
+static void __input_release_device(struct input_handle *handle)
+{
+ struct input_dev *dev = handle->dev;
+
+ if (dev->grab == handle) {
+ rcu_assign_pointer(dev->grab, NULL);
+ /* Make sure input_pass_event() notices that grab is gone */
+ synchronize_rcu();
+
+ list_for_each_entry(handle, &dev->h_list, d_node)
+ if (handle->open && handle->handler->start)
+ handle->handler->start(handle);
+ }
+}
+
+/**
+ * input_release_device - release previously grabbed device
+ * @handle: input handle that owns the device
+ *
+ * Releases previously grabbed device so that other input handles can
+ * start receiving input events. Upon release all handlers attached
+ * to the device have their start() method called so they have a change
+ * to synchronize device state with the rest of the system.
+ */
+void input_release_device(struct input_handle *handle)
+{
+ struct input_dev *dev = handle->dev;
+
+ mutex_lock(&dev->mutex);
+ __input_release_device(handle);
+ mutex_unlock(&dev->mutex);
+}
+EXPORT_SYMBOL(input_release_device);
+
+/**
+ * input_open_device - open input device
+ * @handle: handle through which device is being accessed
+ *
+ * This function should be called by input handlers when they
+ * want to start receive events from given input device.
+ */
+int input_open_device(struct input_handle *handle)
+{
+ struct input_dev *dev = handle->dev;
+ int retval;
+
+ retval = mutex_lock_interruptible(&dev->mutex);
+ if (retval)
+ return retval;
+
+ if (dev->going_away) {
+ retval = -ENODEV;
+ goto out;
+ }
+
+ handle->open++;
+
+ if (!dev->users++ && dev->open)
+ retval = dev->open(dev);
+
+ if (retval) {
+ dev->users--;
+ if (!--handle->open) {
+ /*
+ * Make sure we are not delivering any more events
+ * through this handle
+ */
+ synchronize_rcu();
+ }
+ }
+
+ out:
+ mutex_unlock(&dev->mutex);
+ return retval;
+}
+EXPORT_SYMBOL(input_open_device);
+
+int input_flush_device(struct input_handle *handle, struct file *file)
+{
+ struct input_dev *dev = handle->dev;
+ int retval;
+
+ retval = mutex_lock_interruptible(&dev->mutex);
+ if (retval)
+ return retval;
+
+ if (dev->flush)
+ retval = dev->flush(dev, file);
+
+ mutex_unlock(&dev->mutex);
+ return retval;
+}
+EXPORT_SYMBOL(input_flush_device);
+
+/**
+ * input_close_device - close input device
+ * @handle: handle through which device is being accessed
+ *
+ * This function should be called by input handlers when they
+ * want to stop receive events from given input device.
+ */
+void input_close_device(struct input_handle *handle)
+{
+ struct input_dev *dev = handle->dev;
+
+ mutex_lock(&dev->mutex);
+
+ __input_release_device(handle);
+
+ if (!--dev->users && dev->close)
+ dev->close(dev);
+
+ if (!--handle->open) {
+ /*
+ * synchronize_rcu() makes sure that input_pass_event()
+ * completed and that no more input events are delivered
+ * through this handle
+ */
+ synchronize_rcu();
+ }
+
+ mutex_unlock(&dev->mutex);
+}
+EXPORT_SYMBOL(input_close_device);
+
+/*
+ * Simulate keyup events for all keys that are marked as pressed.
+ * The function must be called with dev->event_lock held.
+ */
+static void input_dev_release_keys(struct input_dev *dev)
+{
+ int code;
+
+ if (is_event_supported(EV_KEY, dev->evbit, EV_MAX)) {
+ for (code = 0; code <= KEY_MAX; code++) {
+ if (is_event_supported(code, dev->keybit, KEY_MAX) &&
+ __test_and_clear_bit(code, dev->key)) {
+ input_pass_event(dev, EV_KEY, code, 0);
+ }
+ }
+ input_pass_event(dev, EV_SYN, SYN_REPORT, 1);
+ }
+}
+
+/*
+ * Prepare device for unregistering
+ */
+static void input_disconnect_device(struct input_dev *dev)
+{
+ struct input_handle *handle;
+
+ /*
+ * Mark device as going away. Note that we take dev->mutex here
+ * not to protect access to dev->going_away but rather to ensure
+ * that there are no threads in the middle of input_open_device()
+ */
+ mutex_lock(&dev->mutex);
+ dev->going_away = true;
+ mutex_unlock(&dev->mutex);
+
+ spin_lock_irq(&dev->event_lock);
+
+ /*
+ * Simulate keyup events for all pressed keys so that handlers
+ * are not left with "stuck" keys. The driver may continue
+ * generate events even after we done here but they will not
+ * reach any handlers.
+ */
+ input_dev_release_keys(dev);
+
+ list_for_each_entry(handle, &dev->h_list, d_node)
+ handle->open = 0;
+
+ spin_unlock_irq(&dev->event_lock);
+}
+
+/**
+ * input_scancode_to_scalar() - converts scancode in &struct input_keymap_entry
+ * @ke: keymap entry containing scancode to be converted.
+ * @scancode: pointer to the location where converted scancode should
+ * be stored.
+ *
+ * This function is used to convert scancode stored in &struct keymap_entry
+ * into scalar form understood by legacy keymap handling methods. These
+ * methods expect scancodes to be represented as 'unsigned int'.
+ */
+int input_scancode_to_scalar(const struct input_keymap_entry *ke,
+ unsigned int *scancode)
+{
+ switch (ke->len) {
+ case 1:
+ *scancode = *((u8 *)ke->scancode);
+ break;
+
+ case 2:
+ *scancode = *((u16 *)ke->scancode);
+ break;
+
+ case 4:
+ *scancode = *((u32 *)ke->scancode);
+ break;
+
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL(input_scancode_to_scalar);
+
+/*
+ * Those routines handle the default case where no [gs]etkeycode() is
+ * defined. In this case, an array indexed by the scancode is used.
+ */
+
+static unsigned int input_fetch_keycode(struct input_dev *dev,
+ unsigned int index)
+{
+ switch (dev->keycodesize) {
+ case 1:
+ return ((u8 *)dev->keycode)[index];
+
+ case 2:
+ return ((u16 *)dev->keycode)[index];
+
+ default:
+ return ((u32 *)dev->keycode)[index];
+ }
+}
+
+static int input_default_getkeycode(struct input_dev *dev,
+ struct input_keymap_entry *ke)
+{
+ unsigned int index;
+ int error;
+
+ if (!dev->keycodesize)
+ return -EINVAL;
+
+ if (ke->flags & INPUT_KEYMAP_BY_INDEX)
+ index = ke->index;
+ else {
+ error = input_scancode_to_scalar(ke, &index);
+ if (error)
+ return error;
+ }
+
+ if (index >= dev->keycodemax)
+ return -EINVAL;
+
+ ke->keycode = input_fetch_keycode(dev, index);
+ ke->index = index;
+ ke->len = sizeof(index);
+ memcpy(ke->scancode, &index, sizeof(index));
+
+ return 0;
+}
+
+static int input_default_setkeycode(struct input_dev *dev,
+ const struct input_keymap_entry *ke,
+ unsigned int *old_keycode)
+{
+ unsigned int index;
+ int error;
+ int i;
+
+ if (!dev->keycodesize)
+ return -EINVAL;
+
+ if (ke->flags & INPUT_KEYMAP_BY_INDEX) {
+ index = ke->index;
+ } else {
+ error = input_scancode_to_scalar(ke, &index);
+ if (error)
+ return error;
+ }
+
+ if (index >= dev->keycodemax)
+ return -EINVAL;
+
+ if (dev->keycodesize < sizeof(ke->keycode) &&
+ (ke->keycode >> (dev->keycodesize * 8)))
+ return -EINVAL;
+
+ switch (dev->keycodesize) {
+ case 1: {
+ u8 *k = (u8 *)dev->keycode;
+ *old_keycode = k[index];
+ k[index] = ke->keycode;
+ break;
+ }
+ case 2: {
+ u16 *k = (u16 *)dev->keycode;
+ *old_keycode = k[index];
+ k[index] = ke->keycode;
+ break;
+ }
+ default: {
+ u32 *k = (u32 *)dev->keycode;
+ *old_keycode = k[index];
+ k[index] = ke->keycode;
+ break;
+ }
+ }
+
+ __clear_bit(*old_keycode, dev->keybit);
+ __set_bit(ke->keycode, dev->keybit);
+
+ for (i = 0; i < dev->keycodemax; i++) {
+ if (input_fetch_keycode(dev, i) == *old_keycode) {
+ __set_bit(*old_keycode, dev->keybit);
+ break; /* Setting the bit twice is useless, so break */
+ }
+ }
+
+ return 0;
+}
+
+/**
+ * input_get_keycode - retrieve keycode currently mapped to a given scancode
+ * @dev: input device which keymap is being queried
+ * @ke: keymap entry
+ *
+ * This function should be called by anyone interested in retrieving current
+ * keymap. Presently evdev handlers use it.
+ */
+int input_get_keycode(struct input_dev *dev, struct input_keymap_entry *ke)
+{
+ unsigned long flags;
+ int retval;
+
+ spin_lock_irqsave(&dev->event_lock, flags);
+ retval = dev->getkeycode(dev, ke);
+ spin_unlock_irqrestore(&dev->event_lock, flags);
+
+ return retval;
+}
+EXPORT_SYMBOL(input_get_keycode);
+
+/**
+ * input_set_keycode - attribute a keycode to a given scancode
+ * @dev: input device which keymap is being updated
+ * @ke: new keymap entry
+ *
+ * This function should be called by anyone needing to update current
+ * keymap. Presently keyboard and evdev handlers use it.
+ */
+int input_set_keycode(struct input_dev *dev,
+ const struct input_keymap_entry *ke)
+{
+ unsigned long flags;
+ unsigned int old_keycode;
+ int retval;
+
+ if (ke->keycode > KEY_MAX)
+ return -EINVAL;
+
+ spin_lock_irqsave(&dev->event_lock, flags);
+
+ retval = dev->setkeycode(dev, ke, &old_keycode);
+ if (retval)
+ goto out;
+
+ /* Make sure KEY_RESERVED did not get enabled. */
+ __clear_bit(KEY_RESERVED, dev->keybit);
+
+ /*
+ * Simulate keyup event if keycode is not present
+ * in the keymap anymore
+ */
+ if (test_bit(EV_KEY, dev->evbit) &&
+ !is_event_supported(old_keycode, dev->keybit, KEY_MAX) &&
+ __test_and_clear_bit(old_keycode, dev->key)) {
+
+ input_pass_event(dev, EV_KEY, old_keycode, 0);
+ if (dev->sync)
+ input_pass_event(dev, EV_SYN, SYN_REPORT, 1);
+ }
+
+ out:
+ spin_unlock_irqrestore(&dev->event_lock, flags);
+
+ return retval;
+}
+EXPORT_SYMBOL(input_set_keycode);
+
+#define MATCH_BIT(bit, max) \
+ for (i = 0; i < BITS_TO_LONGS(max); i++) \
+ if ((id->bit[i] & dev->bit[i]) != id->bit[i]) \
+ break; \
+ if (i != BITS_TO_LONGS(max)) \
+ continue;
+
+static const struct input_device_id *input_match_device(struct input_handler *handler,
+ struct input_dev *dev)
+{
+ const struct input_device_id *id;
+ int i;
+
+ for (id = handler->id_table; id->flags || id->driver_info; id++) {
+
+ if (id->flags & INPUT_DEVICE_ID_MATCH_BUS)
+ if (id->bustype != dev->id.bustype)
+ continue;
+
+ if (id->flags & INPUT_DEVICE_ID_MATCH_VENDOR)
+ if (id->vendor != dev->id.vendor)
+ continue;
+
+ if (id->flags & INPUT_DEVICE_ID_MATCH_PRODUCT)
+ if (id->product != dev->id.product)
+ continue;
+
+ if (id->flags & INPUT_DEVICE_ID_MATCH_VERSION)
+ if (id->version != dev->id.version)
+ continue;
+
+ MATCH_BIT(evbit, EV_MAX);
+ MATCH_BIT(keybit, KEY_MAX);
+ MATCH_BIT(relbit, REL_MAX);
+ MATCH_BIT(absbit, ABS_MAX);
+ MATCH_BIT(mscbit, MSC_MAX);
+ MATCH_BIT(ledbit, LED_MAX);
+ MATCH_BIT(sndbit, SND_MAX);
+ MATCH_BIT(ffbit, FF_MAX);
+ MATCH_BIT(swbit, SW_MAX);
+
+ if (!handler->match || handler->match(handler, dev))
+ return id;
+ }
+
+ return NULL;
+}
+
+static int input_attach_handler(struct input_dev *dev, struct input_handler *handler)
+{
+ const struct input_device_id *id;
+ int error;
+
+ id = input_match_device(handler, dev);
+ if (!id)
+ return -ENODEV;
+
+ error = handler->connect(handler, dev, id);
+ if (error && error != -ENODEV)
+ pr_err("failed to attach handler %s to device %s, error: %d\n",
+ handler->name, kobject_name(&dev->dev.kobj), error);
+
+ return error;
+}
+
+#ifdef CONFIG_COMPAT
+
+static int input_bits_to_string(char *buf, int buf_size,
+ unsigned long bits, bool skip_empty)
+{
+ int len = 0;
+
+ if (INPUT_COMPAT_TEST) {
+ u32 dword = bits >> 32;
+ if (dword || !skip_empty)
+ len += snprintf(buf, buf_size, "%x ", dword);
+
+ dword = bits & 0xffffffffUL;
+ if (dword || !skip_empty || len)
+ len += snprintf(buf + len, max(buf_size - len, 0),
+ "%x", dword);
+ } else {
+ if (bits || !skip_empty)
+ len += snprintf(buf, buf_size, "%lx", bits);
+ }
+
+ return len;
+}
+
+#else /* !CONFIG_COMPAT */
+
+static int input_bits_to_string(char *buf, int buf_size,
+ unsigned long bits, bool skip_empty)
+{
+ return bits || !skip_empty ?
+ snprintf(buf, buf_size, "%lx", bits) : 0;
+}
+
+#endif
+
+#ifdef CONFIG_PROC_FS
+
+static struct proc_dir_entry *proc_bus_input_dir;
+static DECLARE_WAIT_QUEUE_HEAD(input_devices_poll_wait);
+static int input_devices_state;
+
+static inline void input_wakeup_procfs_readers(void)
+{
+ input_devices_state++;
+ wake_up(&input_devices_poll_wait);
+}
+
+static unsigned int input_proc_devices_poll(struct file *file, poll_table *wait)
+{
+ poll_wait(file, &input_devices_poll_wait, wait);
+ if (file->f_version != input_devices_state) {
+ file->f_version = input_devices_state;
+ return POLLIN | POLLRDNORM;
+ }
+
+ return 0;
+}
+
+union input_seq_state {
+ struct {
+ unsigned short pos;
+ bool mutex_acquired;
+ };
+ void *p;
+};
+
+static void *input_devices_seq_start(struct seq_file *seq, loff_t *pos)
+{
+ union input_seq_state *state = (union input_seq_state *)&seq->private;
+ int error;
+
+ /* We need to fit into seq->private pointer */
+ BUILD_BUG_ON(sizeof(union input_seq_state) != sizeof(seq->private));
+
+ error = mutex_lock_interruptible(&input_mutex);
+ if (error) {
+ state->mutex_acquired = false;
+ return ERR_PTR(error);
+ }
+
+ state->mutex_acquired = true;
+
+ return seq_list_start(&input_dev_list, *pos);
+}
+
+static void *input_devices_seq_next(struct seq_file *seq, void *v, loff_t *pos)
+{
+ return seq_list_next(v, &input_dev_list, pos);
+}
+
+static void input_seq_stop(struct seq_file *seq, void *v)
+{
+ union input_seq_state *state = (union input_seq_state *)&seq->private;
+
+ if (state->mutex_acquired)
+ mutex_unlock(&input_mutex);
+}
+
+static void input_seq_print_bitmap(struct seq_file *seq, const char *name,
+ unsigned long *bitmap, int max)
+{
+ int i;
+ bool skip_empty = true;
+ char buf[18];
+
+ seq_printf(seq, "B: %s=", name);
+
+ for (i = BITS_TO_LONGS(max) - 1; i >= 0; i--) {
+ if (input_bits_to_string(buf, sizeof(buf),
+ bitmap[i], skip_empty)) {
+ skip_empty = false;
+ seq_printf(seq, "%s%s", buf, i > 0 ? " " : "");
+ }
+ }
+
+ /*
+ * If no output was produced print a single 0.
+ */
+ if (skip_empty)
+ seq_puts(seq, "0");
+
+ seq_putc(seq, '\n');
+}
+
+static int input_devices_seq_show(struct seq_file *seq, void *v)
+{
+ struct input_dev *dev = container_of(v, struct input_dev, node);
+ const char *path = kobject_get_path(&dev->dev.kobj, GFP_KERNEL);
+ struct input_handle *handle;
+
+ seq_printf(seq, "I: Bus=%04x Vendor=%04x Product=%04x Version=%04x\n",
+ dev->id.bustype, dev->id.vendor, dev->id.product, dev->id.version);
+
+ seq_printf(seq, "N: Name=\"%s\"\n", dev->name ? dev->name : "");
+ seq_printf(seq, "P: Phys=%s\n", dev->phys ? dev->phys : "");
+ seq_printf(seq, "S: Sysfs=%s\n", path ? path : "");
+ seq_printf(seq, "U: Uniq=%s\n", dev->uniq ? dev->uniq : "");
+ seq_printf(seq, "H: Handlers=");
+
+ list_for_each_entry(handle, &dev->h_list, d_node)
+ seq_printf(seq, "%s ", handle->name);
+ seq_putc(seq, '\n');
+
+ input_seq_print_bitmap(seq, "PROP", dev->propbit, INPUT_PROP_MAX);
+
+ input_seq_print_bitmap(seq, "EV", dev->evbit, EV_MAX);
+ if (test_bit(EV_KEY, dev->evbit))
+ input_seq_print_bitmap(seq, "KEY", dev->keybit, KEY_MAX);
+ if (test_bit(EV_REL, dev->evbit))
+ input_seq_print_bitmap(seq, "REL", dev->relbit, REL_MAX);
+ if (test_bit(EV_ABS, dev->evbit))
+ input_seq_print_bitmap(seq, "ABS", dev->absbit, ABS_MAX);
+ if (test_bit(EV_MSC, dev->evbit))
+ input_seq_print_bitmap(seq, "MSC", dev->mscbit, MSC_MAX);
+ if (test_bit(EV_LED, dev->evbit))
+ input_seq_print_bitmap(seq, "LED", dev->ledbit, LED_MAX);
+ if (test_bit(EV_SND, dev->evbit))
+ input_seq_print_bitmap(seq, "SND", dev->sndbit, SND_MAX);
+ if (test_bit(EV_FF, dev->evbit))
+ input_seq_print_bitmap(seq, "FF", dev->ffbit, FF_MAX);
+ if (test_bit(EV_SW, dev->evbit))
+ input_seq_print_bitmap(seq, "SW", dev->swbit, SW_MAX);
+
+ seq_putc(seq, '\n');
+
+ kfree(path);
+ return 0;
+}
+
+static const struct seq_operations input_devices_seq_ops = {
+ .start = input_devices_seq_start,
+ .next = input_devices_seq_next,
+ .stop = input_seq_stop,
+ .show = input_devices_seq_show,
+};
+
+static int input_proc_devices_open(struct inode *inode, struct file *file)
+{
+ return seq_open(file, &input_devices_seq_ops);
+}
+
+static const struct file_operations input_devices_fileops = {
+ .owner = THIS_MODULE,
+ .open = input_proc_devices_open,
+ .poll = input_proc_devices_poll,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = seq_release,
+};
+
+static void *input_handlers_seq_start(struct seq_file *seq, loff_t *pos)
+{
+ union input_seq_state *state = (union input_seq_state *)&seq->private;
+ int error;
+
+ /* We need to fit into seq->private pointer */
+ BUILD_BUG_ON(sizeof(union input_seq_state) != sizeof(seq->private));
+
+ error = mutex_lock_interruptible(&input_mutex);
+ if (error) {
+ state->mutex_acquired = false;
+ return ERR_PTR(error);
+ }
+
+ state->mutex_acquired = true;
+ state->pos = *pos;
+
+ return seq_list_start(&input_handler_list, *pos);
+}
+
+static void *input_handlers_seq_next(struct seq_file *seq, void *v, loff_t *pos)
+{
+ union input_seq_state *state = (union input_seq_state *)&seq->private;
+
+ state->pos = *pos + 1;
+ return seq_list_next(v, &input_handler_list, pos);
+}
+
+static int input_handlers_seq_show(struct seq_file *seq, void *v)
+{
+ struct input_handler *handler = container_of(v, struct input_handler, node);
+ union input_seq_state *state = (union input_seq_state *)&seq->private;
+
+ seq_printf(seq, "N: Number=%u Name=%s", state->pos, handler->name);
+ if (handler->filter)
+ seq_puts(seq, " (filter)");
+ if (handler->fops)
+ seq_printf(seq, " Minor=%d", handler->minor);
+ seq_putc(seq, '\n');
+
+ return 0;
+}
+
+static const struct seq_operations input_handlers_seq_ops = {
+ .start = input_handlers_seq_start,
+ .next = input_handlers_seq_next,
+ .stop = input_seq_stop,
+ .show = input_handlers_seq_show,
+};
+
+static int input_proc_handlers_open(struct inode *inode, struct file *file)
+{
+ return seq_open(file, &input_handlers_seq_ops);
+}
+
+static const struct file_operations input_handlers_fileops = {
+ .owner = THIS_MODULE,
+ .open = input_proc_handlers_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = seq_release,
+};
+
+static int __init input_proc_init(void)
+{
+ struct proc_dir_entry *entry;
+
+ proc_bus_input_dir = proc_mkdir("bus/input", NULL);
+ if (!proc_bus_input_dir)
+ return -ENOMEM;
+
+ entry = proc_create("devices", 0, proc_bus_input_dir,
+ &input_devices_fileops);
+ if (!entry)
+ goto fail1;
+
+ entry = proc_create("handlers", 0, proc_bus_input_dir,
+ &input_handlers_fileops);
+ if (!entry)
+ goto fail2;
+
+ return 0;
+
+ fail2: remove_proc_entry("devices", proc_bus_input_dir);
+ fail1: remove_proc_entry("bus/input", NULL);
+ return -ENOMEM;
+}
+
+static void input_proc_exit(void)
+{
+ remove_proc_entry("devices", proc_bus_input_dir);
+ remove_proc_entry("handlers", proc_bus_input_dir);
+ remove_proc_entry("bus/input", NULL);
+}
+
+#else /* !CONFIG_PROC_FS */
+static inline void input_wakeup_procfs_readers(void) { }
+static inline int input_proc_init(void) { return 0; }
+static inline void input_proc_exit(void) { }
+#endif
+
+#define INPUT_DEV_STRING_ATTR_SHOW(name) \
+static ssize_t input_dev_show_##name(struct device *dev, \
+ struct device_attribute *attr, \
+ char *buf) \
+{ \
+ struct input_dev *input_dev = to_input_dev(dev); \
+ \
+ return scnprintf(buf, PAGE_SIZE, "%s\n", \
+ input_dev->name ? input_dev->name : ""); \
+} \
+static DEVICE_ATTR(name, S_IRUGO, input_dev_show_##name, NULL)
+
+INPUT_DEV_STRING_ATTR_SHOW(name);
+INPUT_DEV_STRING_ATTR_SHOW(phys);
+INPUT_DEV_STRING_ATTR_SHOW(uniq);
+
+static int input_print_modalias_bits(char *buf, int size,
+ char name, unsigned long *bm,
+ unsigned int min_bit, unsigned int max_bit)
+{
+ int len = 0, i;
+
+ len += snprintf(buf, max(size, 0), "%c", name);
+ for (i = min_bit; i < max_bit; i++)
+ if (bm[BIT_WORD(i)] & BIT_MASK(i))
+ len += snprintf(buf + len, max(size - len, 0), "%X,", i);
+ return len;
+}
+
+static int input_print_modalias(char *buf, int size, struct input_dev *id,
+ int add_cr)
+{
+ int len;
+
+ len = snprintf(buf, max(size, 0),
+ "input:b%04Xv%04Xp%04Xe%04X-",
+ id->id.bustype, id->id.vendor,
+ id->id.product, id->id.version);
+
+ len += input_print_modalias_bits(buf + len, size - len,
+ 'e', id->evbit, 0, EV_MAX);
+ len += input_print_modalias_bits(buf + len, size - len,
+ 'k', id->keybit, KEY_MIN_INTERESTING, KEY_MAX);
+ len += input_print_modalias_bits(buf + len, size - len,
+ 'r', id->relbit, 0, REL_MAX);
+ len += input_print_modalias_bits(buf + len, size - len,
+ 'a', id->absbit, 0, ABS_MAX);
+ len += input_print_modalias_bits(buf + len, size - len,
+ 'm', id->mscbit, 0, MSC_MAX);
+ len += input_print_modalias_bits(buf + len, size - len,
+ 'l', id->ledbit, 0, LED_MAX);
+ len += input_print_modalias_bits(buf + len, size - len,
+ 's', id->sndbit, 0, SND_MAX);
+ len += input_print_modalias_bits(buf + len, size - len,
+ 'f', id->ffbit, 0, FF_MAX);
+ len += input_print_modalias_bits(buf + len, size - len,
+ 'w', id->swbit, 0, SW_MAX);
+
+ if (add_cr)
+ len += snprintf(buf + len, max(size - len, 0), "\n");
+
+ return len;
+}
+
+static ssize_t input_dev_show_modalias(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct input_dev *id = to_input_dev(dev);
+ ssize_t len;
+
+ len = input_print_modalias(buf, PAGE_SIZE, id, 1);
+
+ return min_t(int, len, PAGE_SIZE);
+}
+static DEVICE_ATTR(modalias, S_IRUGO, input_dev_show_modalias, NULL);
+
+static int input_print_bitmap(char *buf, int buf_size, unsigned long *bitmap,
+ int max, int add_cr);
+
+static ssize_t input_dev_show_properties(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct input_dev *input_dev = to_input_dev(dev);
+ int len = input_print_bitmap(buf, PAGE_SIZE, input_dev->propbit,
+ INPUT_PROP_MAX, true);
+ return min_t(int, len, PAGE_SIZE);
+}
+static DEVICE_ATTR(properties, S_IRUGO, input_dev_show_properties, NULL);
+
+static struct attribute *input_dev_attrs[] = {
+ &dev_attr_name.attr,
+ &dev_attr_phys.attr,
+ &dev_attr_uniq.attr,
+ &dev_attr_modalias.attr,
+ &dev_attr_properties.attr,
+ NULL
+};
+
+static struct attribute_group input_dev_attr_group = {
+ .attrs = input_dev_attrs,
+};
+
+#define INPUT_DEV_ID_ATTR(name) \
+static ssize_t input_dev_show_id_##name(struct device *dev, \
+ struct device_attribute *attr, \
+ char *buf) \
+{ \
+ struct input_dev *input_dev = to_input_dev(dev); \
+ return scnprintf(buf, PAGE_SIZE, "%04x\n", input_dev->id.name); \
+} \
+static DEVICE_ATTR(name, S_IRUGO, input_dev_show_id_##name, NULL)
+
+INPUT_DEV_ID_ATTR(bustype);
+INPUT_DEV_ID_ATTR(vendor);
+INPUT_DEV_ID_ATTR(product);
+INPUT_DEV_ID_ATTR(version);
+
+static struct attribute *input_dev_id_attrs[] = {
+ &dev_attr_bustype.attr,
+ &dev_attr_vendor.attr,
+ &dev_attr_product.attr,
+ &dev_attr_version.attr,
+ NULL
+};
+
+static struct attribute_group input_dev_id_attr_group = {
+ .name = "id",
+ .attrs = input_dev_id_attrs,
+};
+
+static int input_print_bitmap(char *buf, int buf_size, unsigned long *bitmap,
+ int max, int add_cr)
+{
+ int i;
+ int len = 0;
+ bool skip_empty = true;
+
+ for (i = BITS_TO_LONGS(max) - 1; i >= 0; i--) {
+ len += input_bits_to_string(buf + len, max(buf_size - len, 0),
+ bitmap[i], skip_empty);
+ if (len) {
+ skip_empty = false;
+ if (i > 0)
+ len += snprintf(buf + len, max(buf_size - len, 0), " ");
+ }
+ }
+
+ /*
+ * If no output was produced print a single 0.
+ */
+ if (len == 0)
+ len = snprintf(buf, buf_size, "%d", 0);
+
+ if (add_cr)
+ len += snprintf(buf + len, max(buf_size - len, 0), "\n");
+
+ return len;
+}
+
+#define INPUT_DEV_CAP_ATTR(ev, bm) \
+static ssize_t input_dev_show_cap_##bm(struct device *dev, \
+ struct device_attribute *attr, \
+ char *buf) \
+{ \
+ struct input_dev *input_dev = to_input_dev(dev); \
+ int len = input_print_bitmap(buf, PAGE_SIZE, \
+ input_dev->bm##bit, ev##_MAX, \
+ true); \
+ return min_t(int, len, PAGE_SIZE); \
+} \
+static DEVICE_ATTR(bm, S_IRUGO, input_dev_show_cap_##bm, NULL)
+
+INPUT_DEV_CAP_ATTR(EV, ev);
+INPUT_DEV_CAP_ATTR(KEY, key);
+INPUT_DEV_CAP_ATTR(REL, rel);
+INPUT_DEV_CAP_ATTR(ABS, abs);
+INPUT_DEV_CAP_ATTR(MSC, msc);
+INPUT_DEV_CAP_ATTR(LED, led);
+INPUT_DEV_CAP_ATTR(SND, snd);
+INPUT_DEV_CAP_ATTR(FF, ff);
+INPUT_DEV_CAP_ATTR(SW, sw);
+
+static struct attribute *input_dev_caps_attrs[] = {
+ &dev_attr_ev.attr,
+ &dev_attr_key.attr,
+ &dev_attr_rel.attr,
+ &dev_attr_abs.attr,
+ &dev_attr_msc.attr,
+ &dev_attr_led.attr,
+ &dev_attr_snd.attr,
+ &dev_attr_ff.attr,
+ &dev_attr_sw.attr,
+ NULL
+};
+
+static struct attribute_group input_dev_caps_attr_group = {
+ .name = "capabilities",
+ .attrs = input_dev_caps_attrs,
+};
+
+static const struct attribute_group *input_dev_attr_groups[] = {
+ &input_dev_attr_group,
+ &input_dev_id_attr_group,
+ &input_dev_caps_attr_group,
+ NULL
+};
+
+static void input_dev_release(struct device *device)
+{
+ struct input_dev *dev = to_input_dev(device);
+
+ input_ff_destroy(dev);
+ input_mt_destroy_slots(dev);
+ kfree(dev->absinfo);
+ kfree(dev);
+
+ module_put(THIS_MODULE);
+}
+
+/*
+ * Input uevent interface - loading event handlers based on
+ * device bitfields.
+ */
+static int input_add_uevent_bm_var(struct kobj_uevent_env *env,
+ const char *name, unsigned long *bitmap, int max)
+{
+ int len;
+
+ if (add_uevent_var(env, "%s", name))
+ return -ENOMEM;
+
+ len = input_print_bitmap(&env->buf[env->buflen - 1],
+ sizeof(env->buf) - env->buflen,
+ bitmap, max, false);
+ if (len >= (sizeof(env->buf) - env->buflen))
+ return -ENOMEM;
+
+ env->buflen += len;
+ return 0;
+}
+
+static int input_add_uevent_modalias_var(struct kobj_uevent_env *env,
+ struct input_dev *dev)
+{
+ int len;
+
+ if (add_uevent_var(env, "MODALIAS="))
+ return -ENOMEM;
+
+ len = input_print_modalias(&env->buf[env->buflen - 1],
+ sizeof(env->buf) - env->buflen,
+ dev, 0);
+ if (len >= (sizeof(env->buf) - env->buflen))
+ return -ENOMEM;
+
+ env->buflen += len;
+ return 0;
+}
+
+#define INPUT_ADD_HOTPLUG_VAR(fmt, val...) \
+ do { \
+ int err = add_uevent_var(env, fmt, val); \
+ if (err) \
+ return err; \
+ } while (0)
+
+#define INPUT_ADD_HOTPLUG_BM_VAR(name, bm, max) \
+ do { \
+ int err = input_add_uevent_bm_var(env, name, bm, max); \
+ if (err) \
+ return err; \
+ } while (0)
+
+#define INPUT_ADD_HOTPLUG_MODALIAS_VAR(dev) \
+ do { \
+ int err = input_add_uevent_modalias_var(env, dev); \
+ if (err) \
+ return err; \
+ } while (0)
+
+static int input_dev_uevent(struct device *device, struct kobj_uevent_env *env)
+{
+ struct input_dev *dev = to_input_dev(device);
+
+ INPUT_ADD_HOTPLUG_VAR("PRODUCT=%x/%x/%x/%x",
+ dev->id.bustype, dev->id.vendor,
+ dev->id.product, dev->id.version);
+ if (dev->name)
+ INPUT_ADD_HOTPLUG_VAR("NAME=\"%s\"", dev->name);
+ if (dev->phys)
+ INPUT_ADD_HOTPLUG_VAR("PHYS=\"%s\"", dev->phys);
+ if (dev->uniq)
+ INPUT_ADD_HOTPLUG_VAR("UNIQ=\"%s\"", dev->uniq);
+
+ INPUT_ADD_HOTPLUG_BM_VAR("PROP=", dev->propbit, INPUT_PROP_MAX);
+
+ INPUT_ADD_HOTPLUG_BM_VAR("EV=", dev->evbit, EV_MAX);
+ if (test_bit(EV_KEY, dev->evbit))
+ INPUT_ADD_HOTPLUG_BM_VAR("KEY=", dev->keybit, KEY_MAX);
+ if (test_bit(EV_REL, dev->evbit))
+ INPUT_ADD_HOTPLUG_BM_VAR("REL=", dev->relbit, REL_MAX);
+ if (test_bit(EV_ABS, dev->evbit))
+ INPUT_ADD_HOTPLUG_BM_VAR("ABS=", dev->absbit, ABS_MAX);
+ if (test_bit(EV_MSC, dev->evbit))
+ INPUT_ADD_HOTPLUG_BM_VAR("MSC=", dev->mscbit, MSC_MAX);
+ if (test_bit(EV_LED, dev->evbit))
+ INPUT_ADD_HOTPLUG_BM_VAR("LED=", dev->ledbit, LED_MAX);
+ if (test_bit(EV_SND, dev->evbit))
+ INPUT_ADD_HOTPLUG_BM_VAR("SND=", dev->sndbit, SND_MAX);
+ if (test_bit(EV_FF, dev->evbit))
+ INPUT_ADD_HOTPLUG_BM_VAR("FF=", dev->ffbit, FF_MAX);
+ if (test_bit(EV_SW, dev->evbit))
+ INPUT_ADD_HOTPLUG_BM_VAR("SW=", dev->swbit, SW_MAX);
+
+ INPUT_ADD_HOTPLUG_MODALIAS_VAR(dev);
+
+ return 0;
+}
+
+#define INPUT_DO_TOGGLE(dev, type, bits, on) \
+ do { \
+ int i; \
+ bool active; \
+ \
+ if (!test_bit(EV_##type, dev->evbit)) \
+ break; \
+ \
+ for (i = 0; i < type##_MAX; i++) { \
+ if (!test_bit(i, dev->bits##bit)) \
+ continue; \
+ \
+ active = test_bit(i, dev->bits); \
+ if (!active && !on) \
+ continue; \
+ \
+ dev->event(dev, EV_##type, i, on ? active : 0); \
+ } \
+ } while (0)
+
+static void input_dev_toggle(struct input_dev *dev, bool activate)
+{
+ if (!dev->event)
+ return;
+
+ INPUT_DO_TOGGLE(dev, LED, led, activate);
+ INPUT_DO_TOGGLE(dev, SND, snd, activate);
+
+ if (activate && test_bit(EV_REP, dev->evbit)) {
+ dev->event(dev, EV_REP, REP_PERIOD, dev->rep[REP_PERIOD]);
+ dev->event(dev, EV_REP, REP_DELAY, dev->rep[REP_DELAY]);
+ }
+}
+
+/**
+ * input_reset_device() - reset/restore the state of input device
+ * @dev: input device whose state needs to be reset
+ *
+ * This function tries to reset the state of an opened input device and
+ * bring internal state and state if the hardware in sync with each other.
+ * We mark all keys as released, restore LED state, repeat rate, etc.
+ */
+void input_reset_device(struct input_dev *dev)
+{
+ mutex_lock(&dev->mutex);
+
+ if (dev->users) {
+ input_dev_toggle(dev, true);
+
+ /*
+ * Keys that have been pressed at suspend time are unlikely
+ * to be still pressed when we resume.
+ */
+ spin_lock_irq(&dev->event_lock);
+ input_dev_release_keys(dev);
+ spin_unlock_irq(&dev->event_lock);
+ }
+
+ mutex_unlock(&dev->mutex);
+}
+EXPORT_SYMBOL(input_reset_device);
+
+#ifdef CONFIG_PM
+static int input_dev_suspend(struct device *dev)
+{
+ struct input_dev *input_dev = to_input_dev(dev);
+
+ mutex_lock(&input_dev->mutex);
+
+ if (input_dev->users)
+ input_dev_toggle(input_dev, false);
+
+ mutex_unlock(&input_dev->mutex);
+
+ return 0;
+}
+
+static int input_dev_resume(struct device *dev)
+{
+ struct input_dev *input_dev = to_input_dev(dev);
+
+ input_reset_device(input_dev);
+
+ return 0;
+}
+
+static const struct dev_pm_ops input_dev_pm_ops = {
+ .suspend = input_dev_suspend,
+ .resume = input_dev_resume,
+ .poweroff = input_dev_suspend,
+ .restore = input_dev_resume,
+};
+#endif /* CONFIG_PM */
+
+static struct device_type input_dev_type = {
+ .groups = input_dev_attr_groups,
+ .release = input_dev_release,
+ .uevent = input_dev_uevent,
+#ifdef CONFIG_PM
+ .pm = &input_dev_pm_ops,
+#endif
+};
+
+static char *input_devnode(struct device *dev, mode_t *mode)
+{
+ return kasprintf(GFP_KERNEL, "input/%s", dev_name(dev));
+}
+
+struct class input_class = {
+ .name = "input",
+ .devnode = input_devnode,
+};
+EXPORT_SYMBOL_GPL(input_class);
+
+/**
+ * input_allocate_device - allocate memory for new input device
+ *
+ * Returns prepared struct input_dev or NULL.
+ *
+ * NOTE: Use input_free_device() to free devices that have not been
+ * registered; input_unregister_device() should be used for already
+ * registered devices.
+ */
+struct input_dev *input_allocate_device(void)
+{
+ struct input_dev *dev;
+
+ dev = kzalloc(sizeof(struct input_dev), GFP_KERNEL);
+ if (dev) {
+ dev->dev.type = &input_dev_type;
+ dev->dev.class = &input_class;
+ device_initialize(&dev->dev);
+ mutex_init(&dev->mutex);
+ spin_lock_init(&dev->event_lock);
+ INIT_LIST_HEAD(&dev->h_list);
+ INIT_LIST_HEAD(&dev->node);
+
+ __module_get(THIS_MODULE);
+ }
+
+ return dev;
+}
+EXPORT_SYMBOL(input_allocate_device);
+
+/**
+ * input_free_device - free memory occupied by input_dev structure
+ * @dev: input device to free
+ *
+ * This function should only be used if input_register_device()
+ * was not called yet or if it failed. Once device was registered
+ * use input_unregister_device() and memory will be freed once last
+ * reference to the device is dropped.
+ *
+ * Device should be allocated by input_allocate_device().
+ *
+ * NOTE: If there are references to the input device then memory
+ * will not be freed until last reference is dropped.
+ */
+void input_free_device(struct input_dev *dev)
+{
+ if (dev)
+ input_put_device(dev);
+}
+EXPORT_SYMBOL(input_free_device);
+
+/**
+ * input_set_capability - mark device as capable of a certain event
+ * @dev: device that is capable of emitting or accepting event
+ * @type: type of the event (EV_KEY, EV_REL, etc...)
+ * @code: event code
+ *
+ * In addition to setting up corresponding bit in appropriate capability
+ * bitmap the function also adjusts dev->evbit.
+ */
+void input_set_capability(struct input_dev *dev, unsigned int type, unsigned int code)
+{
+ switch (type) {
+ case EV_KEY:
+ __set_bit(code, dev->keybit);
+ break;
+
+ case EV_REL:
+ __set_bit(code, dev->relbit);
+ break;
+
+ case EV_ABS:
+ __set_bit(code, dev->absbit);
+ break;
+
+ case EV_MSC:
+ __set_bit(code, dev->mscbit);
+ break;
+
+ case EV_SW:
+ __set_bit(code, dev->swbit);
+ break;
+
+ case EV_LED:
+ __set_bit(code, dev->ledbit);
+ break;
+
+ case EV_SND:
+ __set_bit(code, dev->sndbit);
+ break;
+
+ case EV_FF:
+ __set_bit(code, dev->ffbit);
+ break;
+
+ case EV_PWR:
+ /* do nothing */
+ break;
+
+ default:
+ pr_err("input_set_capability: unknown type %u (code %u)\n",
+ type, code);
+ dump_stack();
+ return;
+ }
+
+ __set_bit(type, dev->evbit);
+}
+EXPORT_SYMBOL(input_set_capability);
+
+static unsigned int input_estimate_events_per_packet(struct input_dev *dev)
+{
+ int mt_slots;
+ int i;
+ unsigned int events;
+
+ if (dev->mtsize) {
+ mt_slots = dev->mtsize;
+ } else if (test_bit(ABS_MT_TRACKING_ID, dev->absbit)) {
+ mt_slots = dev->absinfo[ABS_MT_TRACKING_ID].maximum -
+ dev->absinfo[ABS_MT_TRACKING_ID].minimum + 1,
+ mt_slots = clamp(mt_slots, 2, 32);
+ } else if (test_bit(ABS_MT_POSITION_X, dev->absbit)) {
+ mt_slots = 2;
+ } else {
+ mt_slots = 0;
+ }
+
+ events = mt_slots + 1; /* count SYN_MT_REPORT and SYN_REPORT */
+
+ for (i = 0; i < ABS_CNT; i++) {
+ if (test_bit(i, dev->absbit)) {
+ if (input_is_mt_axis(i))
+ events += mt_slots;
+ else
+ events++;
+ }
+ }
+
+ for (i = 0; i < REL_CNT; i++)
+ if (test_bit(i, dev->relbit))
+ events++;
+
+ return events;
+}
+
+#define INPUT_CLEANSE_BITMASK(dev, type, bits) \
+ do { \
+ if (!test_bit(EV_##type, dev->evbit)) \
+ memset(dev->bits##bit, 0, \
+ sizeof(dev->bits##bit)); \
+ } while (0)
+
+static void input_cleanse_bitmasks(struct input_dev *dev)
+{
+ INPUT_CLEANSE_BITMASK(dev, KEY, key);
+ INPUT_CLEANSE_BITMASK(dev, REL, rel);
+ INPUT_CLEANSE_BITMASK(dev, ABS, abs);
+ INPUT_CLEANSE_BITMASK(dev, MSC, msc);
+ INPUT_CLEANSE_BITMASK(dev, LED, led);
+ INPUT_CLEANSE_BITMASK(dev, SND, snd);
+ INPUT_CLEANSE_BITMASK(dev, FF, ff);
+ INPUT_CLEANSE_BITMASK(dev, SW, sw);
+}
+
+/**
+ * input_register_device - register device with input core
+ * @dev: device to be registered
+ *
+ * This function registers device with input core. The device must be
+ * allocated with input_allocate_device() and all it's capabilities
+ * set up before registering.
+ * If function fails the device must be freed with input_free_device().
+ * Once device has been successfully registered it can be unregistered
+ * with input_unregister_device(); input_free_device() should not be
+ * called in this case.
+ */
+int input_register_device(struct input_dev *dev)
+{
+ static atomic_t input_no = ATOMIC_INIT(0);
+ struct input_handler *handler;
+ const char *path;
+ int error;
+
+ /* Every input device generates EV_SYN/SYN_REPORT events. */
+ __set_bit(EV_SYN, dev->evbit);
+
+ /* KEY_RESERVED is not supposed to be transmitted to userspace. */
+ __clear_bit(KEY_RESERVED, dev->keybit);
+
+ /* Make sure that bitmasks not mentioned in dev->evbit are clean. */
+ input_cleanse_bitmasks(dev);
+
+ if (!dev->hint_events_per_packet)
+ dev->hint_events_per_packet =
+ input_estimate_events_per_packet(dev);
+
+ /*
+ * If delay and period are pre-set by the driver, then autorepeating
+ * is handled by the driver itself and we don't do it in input.c.
+ */
+ init_timer(&dev->timer);
+ if (!dev->rep[REP_DELAY] && !dev->rep[REP_PERIOD]) {
+ dev->timer.data = (long) dev;
+ dev->timer.function = input_repeat_key;
+ dev->rep[REP_DELAY] = 250;
+ dev->rep[REP_PERIOD] = 33;
+ }
+
+ if (!dev->getkeycode)
+ dev->getkeycode = input_default_getkeycode;
+
+ if (!dev->setkeycode)
+ dev->setkeycode = input_default_setkeycode;
+
+ dev_set_name(&dev->dev, "input%ld",
+ (unsigned long) atomic_inc_return(&input_no) - 1);
+
+ error = device_add(&dev->dev);
+ if (error)
+ return error;
+
+ path = kobject_get_path(&dev->dev.kobj, GFP_KERNEL);
+ pr_info("%s as %s\n",
+ dev->name ? dev->name : "Unspecified device",
+ path ? path : "N/A");
+ kfree(path);
+
+ error = mutex_lock_interruptible(&input_mutex);
+ if (error) {
+ device_del(&dev->dev);
+ return error;
+ }
+
+ list_add_tail(&dev->node, &input_dev_list);
+
+ list_for_each_entry(handler, &input_handler_list, node)
+ input_attach_handler(dev, handler);
+
+ input_wakeup_procfs_readers();
+
+ mutex_unlock(&input_mutex);
+
+ return 0;
+}
+EXPORT_SYMBOL(input_register_device);
+
+/**
+ * input_unregister_device - unregister previously registered device
+ * @dev: device to be unregistered
+ *
+ * This function unregisters an input device. Once device is unregistered
+ * the caller should not try to access it as it may get freed at any moment.
+ */
+void input_unregister_device(struct input_dev *dev)
+{
+ struct input_handle *handle, *next;
+
+ input_disconnect_device(dev);
+
+ mutex_lock(&input_mutex);
+
+ list_for_each_entry_safe(handle, next, &dev->h_list, d_node)
+ handle->handler->disconnect(handle);
+ WARN_ON(!list_empty(&dev->h_list));
+
+ del_timer_sync(&dev->timer);
+ list_del_init(&dev->node);
+
+ input_wakeup_procfs_readers();
+
+ mutex_unlock(&input_mutex);
+
+ device_unregister(&dev->dev);
+}
+EXPORT_SYMBOL(input_unregister_device);
+
+/**
+ * input_register_handler - register a new input handler
+ * @handler: handler to be registered
+ *
+ * This function registers a new input handler (interface) for input
+ * devices in the system and attaches it to all input devices that
+ * are compatible with the handler.
+ */
+int input_register_handler(struct input_handler *handler)
+{
+ struct input_dev *dev;
+ int retval;
+
+ retval = mutex_lock_interruptible(&input_mutex);
+ if (retval)
+ return retval;
+
+ INIT_LIST_HEAD(&handler->h_list);
+
+ if (handler->fops != NULL) {
+ if (input_table[handler->minor >> 5]) {
+ retval = -EBUSY;
+ goto out;
+ }
+ input_table[handler->minor >> 5] = handler;
+ }
+
+ list_add_tail(&handler->node, &input_handler_list);
+
+ list_for_each_entry(dev, &input_dev_list, node)
+ input_attach_handler(dev, handler);
+
+ input_wakeup_procfs_readers();
+
+ out:
+ mutex_unlock(&input_mutex);
+ return retval;
+}
+EXPORT_SYMBOL(input_register_handler);
+
+/**
+ * input_unregister_handler - unregisters an input handler
+ * @handler: handler to be unregistered
+ *
+ * This function disconnects a handler from its input devices and
+ * removes it from lists of known handlers.
+ */
+void input_unregister_handler(struct input_handler *handler)
+{
+ struct input_handle *handle, *next;
+
+ mutex_lock(&input_mutex);
+
+ list_for_each_entry_safe(handle, next, &handler->h_list, h_node)
+ handler->disconnect(handle);
+ WARN_ON(!list_empty(&handler->h_list));
+
+ list_del_init(&handler->node);
+
+ if (handler->fops != NULL)
+ input_table[handler->minor >> 5] = NULL;
+
+ input_wakeup_procfs_readers();
+
+ mutex_unlock(&input_mutex);
+}
+EXPORT_SYMBOL(input_unregister_handler);
+
+/**
+ * input_handler_for_each_handle - handle iterator
+ * @handler: input handler to iterate
+ * @data: data for the callback
+ * @fn: function to be called for each handle
+ *
+ * Iterate over @bus's list of devices, and call @fn for each, passing
+ * it @data and stop when @fn returns a non-zero value. The function is
+ * using RCU to traverse the list and therefore may be usind in atonic
+ * contexts. The @fn callback is invoked from RCU critical section and
+ * thus must not sleep.
+ */
+int input_handler_for_each_handle(struct input_handler *handler, void *data,
+ int (*fn)(struct input_handle *, void *))
+{
+ struct input_handle *handle;
+ int retval = 0;
+
+ rcu_read_lock();
+
+ list_for_each_entry_rcu(handle, &handler->h_list, h_node) {
+ retval = fn(handle, data);
+ if (retval)
+ break;
+ }
+
+ rcu_read_unlock();
+
+ return retval;
+}
+EXPORT_SYMBOL(input_handler_for_each_handle);
+
+/**
+ * input_register_handle - register a new input handle
+ * @handle: handle to register
+ *
+ * This function puts a new input handle onto device's
+ * and handler's lists so that events can flow through
+ * it once it is opened using input_open_device().
+ *
+ * This function is supposed to be called from handler's
+ * connect() method.
+ */
+int input_register_handle(struct input_handle *handle)
+{
+ struct input_handler *handler = handle->handler;
+ struct input_dev *dev = handle->dev;
+ int error;
+
+ /*
+ * We take dev->mutex here to prevent race with
+ * input_release_device().
+ */
+ error = mutex_lock_interruptible(&dev->mutex);
+ if (error)
+ return error;
+
+ /*
+ * Filters go to the head of the list, normal handlers
+ * to the tail.
+ */
+ if (handler->filter)
+ list_add_rcu(&handle->d_node, &dev->h_list);
+ else
+ list_add_tail_rcu(&handle->d_node, &dev->h_list);
+
+ mutex_unlock(&dev->mutex);
+
+ /*
+ * Since we are supposed to be called from ->connect()
+ * which is mutually exclusive with ->disconnect()
+ * we can't be racing with input_unregister_handle()
+ * and so separate lock is not needed here.
+ */
+ list_add_tail_rcu(&handle->h_node, &handler->h_list);
+
+ if (handler->start)
+ handler->start(handle);
+
+ return 0;
+}
+EXPORT_SYMBOL(input_register_handle);
+
+/**
+ * input_unregister_handle - unregister an input handle
+ * @handle: handle to unregister
+ *
+ * This function removes input handle from device's
+ * and handler's lists.
+ *
+ * This function is supposed to be called from handler's
+ * disconnect() method.
+ */
+void input_unregister_handle(struct input_handle *handle)
+{
+ struct input_dev *dev = handle->dev;
+
+ list_del_rcu(&handle->h_node);
+
+ /*
+ * Take dev->mutex to prevent race with input_release_device().
+ */
+ mutex_lock(&dev->mutex);
+ list_del_rcu(&handle->d_node);
+ mutex_unlock(&dev->mutex);
+
+ synchronize_rcu();
+}
+EXPORT_SYMBOL(input_unregister_handle);
+
+static int input_open_file(struct inode *inode, struct file *file)
+{
+ struct input_handler *handler;
+ const struct file_operations *old_fops, *new_fops = NULL;
+ int err;
+
+ err = mutex_lock_interruptible(&input_mutex);
+ if (err)
+ return err;
+
+ /* No load-on-demand here? */
+ handler = input_table[iminor(inode) >> 5];
+ if (handler)
+ new_fops = fops_get(handler->fops);
+
+ mutex_unlock(&input_mutex);
+
+ /*
+ * That's _really_ odd. Usually NULL ->open means "nothing special",
+ * not "no device". Oh, well...
+ */
+ if (!new_fops || !new_fops->open) {
+ fops_put(new_fops);
+ err = -ENODEV;
+ goto out;
+ }
+
+ old_fops = file->f_op;
+ file->f_op = new_fops;
+
+ err = new_fops->open(inode, file);
+ if (err) {
+ fops_put(file->f_op);
+ file->f_op = fops_get(old_fops);
+ }
+ fops_put(old_fops);
+out:
+ return err;
+}
+
+static const struct file_operations input_fops = {
+ .owner = THIS_MODULE,
+ .open = input_open_file,
+ .llseek = noop_llseek,
+};
+
+static int __init input_init(void)
+{
+ int err;
+
+ err = class_register(&input_class);
+ if (err) {
+ pr_err("unable to register input_dev class\n");
+ return err;
+ }
+
+ err = input_proc_init();
+ if (err)
+ goto fail1;
+
+ err = register_chrdev(INPUT_MAJOR, "input", &input_fops);
+ if (err) {
+ pr_err("unable to register char major %d", INPUT_MAJOR);
+ goto fail2;
+ }
+
+ return 0;
+
+ fail2: input_proc_exit();
+ fail1: class_unregister(&input_class);
+ return err;
+}
+
+static void __exit input_exit(void)
+{
+ input_proc_exit();
+ unregister_chrdev(INPUT_MAJOR, "input");
+ class_unregister(&input_class);
+}
+
+subsys_initcall(input_init);
+module_exit(input_exit);
diff --git a/drivers/input/joydev.c b/drivers/input/joydev.c
new file mode 100644
index 0000000..c24ec2d
--- /dev/null
+++ b/drivers/input/joydev.c
@@ -0,0 +1,982 @@
+/*
+ * Joystick device driver for the input driver suite.
+ *
+ * Copyright (c) 1999-2002 Vojtech Pavlik
+ * Copyright (c) 1999 Colin Van Dyke
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <asm/io.h>
+#include <asm/system.h>
+#include <linux/delay.h>
+#include <linux/errno.h>
+#include <linux/joystick.h>
+#include <linux/input.h>
+#include <linux/kernel.h>
+#include <linux/major.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
+#include <linux/mm.h>
+#include <linux/miscdevice.h>
+#include <linux/module.h>
+#include <linux/poll.h>
+#include <linux/init.h>
+#include <linux/device.h>
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
+MODULE_DESCRIPTION("Joystick device interfaces");
+MODULE_SUPPORTED_DEVICE("input/js");
+MODULE_LICENSE("GPL");
+
+#define JOYDEV_MINOR_BASE 0
+#define JOYDEV_MINORS 16
+#define JOYDEV_BUFFER_SIZE 64
+
+struct joydev {
+ int open;
+ int minor;
+ struct input_handle handle;
+ wait_queue_head_t wait;
+ struct list_head client_list;
+ spinlock_t client_lock; /* protects client_list */
+ struct mutex mutex;
+ struct device dev;
+ bool exist;
+
+ struct js_corr corr[ABS_CNT];
+ struct JS_DATA_SAVE_TYPE glue;
+ int nabs;
+ int nkey;
+ __u16 keymap[KEY_MAX - BTN_MISC + 1];
+ __u16 keypam[KEY_MAX - BTN_MISC + 1];
+ __u8 absmap[ABS_CNT];
+ __u8 abspam[ABS_CNT];
+ __s16 abs[ABS_CNT];
+};
+
+struct joydev_client {
+ struct js_event buffer[JOYDEV_BUFFER_SIZE];
+ int head;
+ int tail;
+ int startup;
+ spinlock_t buffer_lock; /* protects access to buffer, head and tail */
+ struct fasync_struct *fasync;
+ struct joydev *joydev;
+ struct list_head node;
+};
+
+static struct joydev *joydev_table[JOYDEV_MINORS];
+static DEFINE_MUTEX(joydev_table_mutex);
+
+static int joydev_correct(int value, struct js_corr *corr)
+{
+ switch (corr->type) {
+
+ case JS_CORR_NONE:
+ break;
+
+ case JS_CORR_BROKEN:
+ value = value > corr->coef[0] ? (value < corr->coef[1] ? 0 :
+ ((corr->coef[3] * (value - corr->coef[1])) >> 14)) :
+ ((corr->coef[2] * (value - corr->coef[0])) >> 14);
+ break;
+
+ default:
+ return 0;
+ }
+
+ return value < -32767 ? -32767 : (value > 32767 ? 32767 : value);
+}
+
+static void joydev_pass_event(struct joydev_client *client,
+ struct js_event *event)
+{
+ struct joydev *joydev = client->joydev;
+
+ /*
+ * IRQs already disabled, just acquire the lock
+ */
+ spin_lock(&client->buffer_lock);
+
+ client->buffer[client->head] = *event;
+
+ if (client->startup == joydev->nabs + joydev->nkey) {
+ client->head++;
+ client->head &= JOYDEV_BUFFER_SIZE - 1;
+ if (client->tail == client->head)
+ client->startup = 0;
+ }
+
+ spin_unlock(&client->buffer_lock);
+
+ kill_fasync(&client->fasync, SIGIO, POLL_IN);
+}
+
+static void joydev_event(struct input_handle *handle,
+ unsigned int type, unsigned int code, int value)
+{
+ struct joydev *joydev = handle->private;
+ struct joydev_client *client;
+ struct js_event event;
+
+ switch (type) {
+
+ case EV_KEY:
+ if (code < BTN_MISC || value == 2)
+ return;
+ event.type = JS_EVENT_BUTTON;
+ event.number = joydev->keymap[code - BTN_MISC];
+ event.value = value;
+ break;
+
+ case EV_ABS:
+ event.type = JS_EVENT_AXIS;
+ event.number = joydev->absmap[code];
+ event.value = joydev_correct(value,
+ &joydev->corr[event.number]);
+ if (event.value == joydev->abs[event.number])
+ return;
+ joydev->abs[event.number] = event.value;
+ break;
+
+ default:
+ return;
+ }
+
+ event.time = jiffies_to_msecs(jiffies);
+
+ rcu_read_lock();
+ list_for_each_entry_rcu(client, &joydev->client_list, node)
+ joydev_pass_event(client, &event);
+ rcu_read_unlock();
+
+ wake_up_interruptible(&joydev->wait);
+}
+
+static int joydev_fasync(int fd, struct file *file, int on)
+{
+ struct joydev_client *client = file->private_data;
+
+ return fasync_helper(fd, file, on, &client->fasync);
+}
+
+static void joydev_free(struct device *dev)
+{
+ struct joydev *joydev = container_of(dev, struct joydev, dev);
+
+ input_put_device(joydev->handle.dev);
+ kfree(joydev);
+}
+
+static void joydev_attach_client(struct joydev *joydev,
+ struct joydev_client *client)
+{
+ spin_lock(&joydev->client_lock);
+ list_add_tail_rcu(&client->node, &joydev->client_list);
+ spin_unlock(&joydev->client_lock);
+}
+
+static void joydev_detach_client(struct joydev *joydev,
+ struct joydev_client *client)
+{
+ spin_lock(&joydev->client_lock);
+ list_del_rcu(&client->node);
+ spin_unlock(&joydev->client_lock);
+ synchronize_rcu();
+}
+
+static int joydev_open_device(struct joydev *joydev)
+{
+ int retval;
+
+ retval = mutex_lock_interruptible(&joydev->mutex);
+ if (retval)
+ return retval;
+
+ if (!joydev->exist)
+ retval = -ENODEV;
+ else if (!joydev->open++) {
+ retval = input_open_device(&joydev->handle);
+ if (retval)
+ joydev->open--;
+ }
+
+ mutex_unlock(&joydev->mutex);
+ return retval;
+}
+
+static void joydev_close_device(struct joydev *joydev)
+{
+ mutex_lock(&joydev->mutex);
+
+ if (joydev->exist && !--joydev->open)
+ input_close_device(&joydev->handle);
+
+ mutex_unlock(&joydev->mutex);
+}
+
+/*
+ * Wake up users waiting for IO so they can disconnect from
+ * dead device.
+ */
+static void joydev_hangup(struct joydev *joydev)
+{
+ struct joydev_client *client;
+
+ spin_lock(&joydev->client_lock);
+ list_for_each_entry(client, &joydev->client_list, node)
+ kill_fasync(&client->fasync, SIGIO, POLL_HUP);
+ spin_unlock(&joydev->client_lock);
+
+ wake_up_interruptible(&joydev->wait);
+}
+
+static int joydev_release(struct inode *inode, struct file *file)
+{
+ struct joydev_client *client = file->private_data;
+ struct joydev *joydev = client->joydev;
+
+ joydev_detach_client(joydev, client);
+ kfree(client);
+
+ joydev_close_device(joydev);
+ put_device(&joydev->dev);
+
+ return 0;
+}
+
+static int joydev_open(struct inode *inode, struct file *file)
+{
+ struct joydev_client *client;
+ struct joydev *joydev;
+ int i = iminor(inode) - JOYDEV_MINOR_BASE;
+ int error;
+
+ if (i >= JOYDEV_MINORS)
+ return -ENODEV;
+
+ error = mutex_lock_interruptible(&joydev_table_mutex);
+ if (error)
+ return error;
+ joydev = joydev_table[i];
+ if (joydev)
+ get_device(&joydev->dev);
+ mutex_unlock(&joydev_table_mutex);
+
+ if (!joydev)
+ return -ENODEV;
+
+ client = kzalloc(sizeof(struct joydev_client), GFP_KERNEL);
+ if (!client) {
+ error = -ENOMEM;
+ goto err_put_joydev;
+ }
+
+ spin_lock_init(&client->buffer_lock);
+ client->joydev = joydev;
+ joydev_attach_client(joydev, client);
+
+ error = joydev_open_device(joydev);
+ if (error)
+ goto err_free_client;
+
+ file->private_data = client;
+ nonseekable_open(inode, file);
+
+ return 0;
+
+ err_free_client:
+ joydev_detach_client(joydev, client);
+ kfree(client);
+ err_put_joydev:
+ put_device(&joydev->dev);
+ return error;
+}
+
+static int joydev_generate_startup_event(struct joydev_client *client,
+ struct input_dev *input,
+ struct js_event *event)
+{
+ struct joydev *joydev = client->joydev;
+ int have_event;
+
+ spin_lock_irq(&client->buffer_lock);
+
+ have_event = client->startup < joydev->nabs + joydev->nkey;
+
+ if (have_event) {
+
+ event->time = jiffies_to_msecs(jiffies);
+ if (client->startup < joydev->nkey) {
+ event->type = JS_EVENT_BUTTON | JS_EVENT_INIT;
+ event->number = client->startup;
+ event->value = !!test_bit(joydev->keypam[event->number],
+ input->key);
+ } else {
+ event->type = JS_EVENT_AXIS | JS_EVENT_INIT;
+ event->number = client->startup - joydev->nkey;
+ event->value = joydev->abs[event->number];
+ }
+ client->startup++;
+ }
+
+ spin_unlock_irq(&client->buffer_lock);
+
+ return have_event;
+}
+
+static int joydev_fetch_next_event(struct joydev_client *client,
+ struct js_event *event)
+{
+ int have_event;
+
+ spin_lock_irq(&client->buffer_lock);
+
+ have_event = client->head != client->tail;
+ if (have_event) {
+ *event = client->buffer[client->tail++];
+ client->tail &= JOYDEV_BUFFER_SIZE - 1;
+ }
+
+ spin_unlock_irq(&client->buffer_lock);
+
+ return have_event;
+}
+
+/*
+ * Old joystick interface
+ */
+static ssize_t joydev_0x_read(struct joydev_client *client,
+ struct input_dev *input,
+ char __user *buf)
+{
+ struct joydev *joydev = client->joydev;
+ struct JS_DATA_TYPE data;
+ int i;
+
+ spin_lock_irq(&input->event_lock);
+
+ /*
+ * Get device state
+ */
+ for (data.buttons = i = 0; i < 32 && i < joydev->nkey; i++)
+ data.buttons |=
+ test_bit(joydev->keypam[i], input->key) ? (1 << i) : 0;
+ data.x = (joydev->abs[0] / 256 + 128) >> joydev->glue.JS_CORR.x;
+ data.y = (joydev->abs[1] / 256 + 128) >> joydev->glue.JS_CORR.y;
+
+ /*
+ * Reset reader's event queue
+ */
+ spin_lock(&client->buffer_lock);
+ client->startup = 0;
+ client->tail = client->head;
+ spin_unlock(&client->buffer_lock);
+
+ spin_unlock_irq(&input->event_lock);
+
+ if (copy_to_user(buf, &data, sizeof(struct JS_DATA_TYPE)))
+ return -EFAULT;
+
+ return sizeof(struct JS_DATA_TYPE);
+}
+
+static inline int joydev_data_pending(struct joydev_client *client)
+{
+ struct joydev *joydev = client->joydev;
+
+ return client->startup < joydev->nabs + joydev->nkey ||
+ client->head != client->tail;
+}
+
+static ssize_t joydev_read(struct file *file, char __user *buf,
+ size_t count, loff_t *ppos)
+{
+ struct joydev_client *client = file->private_data;
+ struct joydev *joydev = client->joydev;
+ struct input_dev *input = joydev->handle.dev;
+ struct js_event event;
+ int retval;
+
+ if (!joydev->exist)
+ return -ENODEV;
+
+ if (count < sizeof(struct js_event))
+ return -EINVAL;
+
+ if (count == sizeof(struct JS_DATA_TYPE))
+ return joydev_0x_read(client, input, buf);
+
+ if (!joydev_data_pending(client) && (file->f_flags & O_NONBLOCK))
+ return -EAGAIN;
+
+ retval = wait_event_interruptible(joydev->wait,
+ !joydev->exist || joydev_data_pending(client));
+ if (retval)
+ return retval;
+
+ if (!joydev->exist)
+ return -ENODEV;
+
+ while (retval + sizeof(struct js_event) <= count &&
+ joydev_generate_startup_event(client, input, &event)) {
+
+ if (copy_to_user(buf + retval, &event, sizeof(struct js_event)))
+ return -EFAULT;
+
+ retval += sizeof(struct js_event);
+ }
+
+ while (retval + sizeof(struct js_event) <= count &&
+ joydev_fetch_next_event(client, &event)) {
+
+ if (copy_to_user(buf + retval, &event, sizeof(struct js_event)))
+ return -EFAULT;
+
+ retval += sizeof(struct js_event);
+ }
+
+ return retval;
+}
+
+/* No kernel lock - fine */
+static unsigned int joydev_poll(struct file *file, poll_table *wait)
+{
+ struct joydev_client *client = file->private_data;
+ struct joydev *joydev = client->joydev;
+
+ poll_wait(file, &joydev->wait, wait);
+ return (joydev_data_pending(client) ? (POLLIN | POLLRDNORM) : 0) |
+ (joydev->exist ? 0 : (POLLHUP | POLLERR));
+}
+
+static int joydev_handle_JSIOCSAXMAP(struct joydev *joydev,
+ void __user *argp, size_t len)
+{
+ __u8 *abspam;
+ int i;
+ int retval = 0;
+
+ len = min(len, sizeof(joydev->abspam));
+
+ /* Validate the map. */
+ abspam = kmalloc(len, GFP_KERNEL);
+ if (!abspam)
+ return -ENOMEM;
+
+ if (copy_from_user(abspam, argp, len)) {
+ retval = -EFAULT;
+ goto out;
+ }
+
+ for (i = 0; i < joydev->nabs; i++) {
+ if (abspam[i] > ABS_MAX) {
+ retval = -EINVAL;
+ goto out;
+ }
+ }
+
+ memcpy(joydev->abspam, abspam, len);
+
+ for (i = 0; i < joydev->nabs; i++)
+ joydev->absmap[joydev->abspam[i]] = i;
+
+ out:
+ kfree(abspam);
+ return retval;
+}
+
+static int joydev_handle_JSIOCSBTNMAP(struct joydev *joydev,
+ void __user *argp, size_t len)
+{
+ __u16 *keypam;
+ int i;
+ int retval = 0;
+
+ len = min(len, sizeof(joydev->keypam));
+
+ /* Validate the map. */
+ keypam = kmalloc(len, GFP_KERNEL);
+ if (!keypam)
+ return -ENOMEM;
+
+ if (copy_from_user(keypam, argp, len)) {
+ retval = -EFAULT;
+ goto out;
+ }
+
+ for (i = 0; i < joydev->nkey; i++) {
+ if (keypam[i] > KEY_MAX || keypam[i] < BTN_MISC) {
+ retval = -EINVAL;
+ goto out;
+ }
+ }
+
+ memcpy(joydev->keypam, keypam, len);
+
+ for (i = 0; i < joydev->nkey; i++)
+ joydev->keymap[keypam[i] - BTN_MISC] = i;
+
+ out:
+ kfree(keypam);
+ return retval;
+}
+
+
+static int joydev_ioctl_common(struct joydev *joydev,
+ unsigned int cmd, void __user *argp)
+{
+ struct input_dev *dev = joydev->handle.dev;
+ size_t len;
+ int i;
+ const char *name;
+
+ /* Process fixed-sized commands. */
+ switch (cmd) {
+
+ case JS_SET_CAL:
+ return copy_from_user(&joydev->glue.JS_CORR, argp,
+ sizeof(joydev->glue.JS_CORR)) ? -EFAULT : 0;
+
+ case JS_GET_CAL:
+ return copy_to_user(argp, &joydev->glue.JS_CORR,
+ sizeof(joydev->glue.JS_CORR)) ? -EFAULT : 0;
+
+ case JS_SET_TIMEOUT:
+ return get_user(joydev->glue.JS_TIMEOUT, (s32 __user *) argp);
+
+ case JS_GET_TIMEOUT:
+ return put_user(joydev->glue.JS_TIMEOUT, (s32 __user *) argp);
+
+ case JSIOCGVERSION:
+ return put_user(JS_VERSION, (__u32 __user *) argp);
+
+ case JSIOCGAXES:
+ return put_user(joydev->nabs, (__u8 __user *) argp);
+
+ case JSIOCGBUTTONS:
+ return put_user(joydev->nkey, (__u8 __user *) argp);
+
+ case JSIOCSCORR:
+ if (copy_from_user(joydev->corr, argp,
+ sizeof(joydev->corr[0]) * joydev->nabs))
+ return -EFAULT;
+
+ for (i = 0; i < joydev->nabs; i++) {
+ int val = input_abs_get_val(dev, joydev->abspam[i]);
+ joydev->abs[i] = joydev_correct(val, &joydev->corr[i]);
+ }
+ return 0;
+
+ case JSIOCGCORR:
+ return copy_to_user(argp, joydev->corr,
+ sizeof(joydev->corr[0]) * joydev->nabs) ? -EFAULT : 0;
+
+ }
+
+ /*
+ * Process variable-sized commands (the axis and button map commands
+ * are considered variable-sized to decouple them from the values of
+ * ABS_MAX and KEY_MAX).
+ */
+ switch (cmd & ~IOCSIZE_MASK) {
+
+ case (JSIOCSAXMAP & ~IOCSIZE_MASK):
+ return joydev_handle_JSIOCSAXMAP(joydev, argp, _IOC_SIZE(cmd));
+
+ case (JSIOCGAXMAP & ~IOCSIZE_MASK):
+ len = min_t(size_t, _IOC_SIZE(cmd), sizeof(joydev->abspam));
+ return copy_to_user(argp, joydev->abspam, len) ? -EFAULT : len;
+
+ case (JSIOCSBTNMAP & ~IOCSIZE_MASK):
+ return joydev_handle_JSIOCSBTNMAP(joydev, argp, _IOC_SIZE(cmd));
+
+ case (JSIOCGBTNMAP & ~IOCSIZE_MASK):
+ len = min_t(size_t, _IOC_SIZE(cmd), sizeof(joydev->keypam));
+ return copy_to_user(argp, joydev->keypam, len) ? -EFAULT : len;
+
+ case JSIOCGNAME(0):
+ name = dev->name;
+ if (!name)
+ return 0;
+
+ len = min_t(size_t, _IOC_SIZE(cmd), strlen(name) + 1);
+ return copy_to_user(argp, name, len) ? -EFAULT : len;
+ }
+
+ return -EINVAL;
+}
+
+#ifdef CONFIG_COMPAT
+static long joydev_compat_ioctl(struct file *file,
+ unsigned int cmd, unsigned long arg)
+{
+ struct joydev_client *client = file->private_data;
+ struct joydev *joydev = client->joydev;
+ void __user *argp = (void __user *)arg;
+ s32 tmp32;
+ struct JS_DATA_SAVE_TYPE_32 ds32;
+ int retval;
+
+ retval = mutex_lock_interruptible(&joydev->mutex);
+ if (retval)
+ return retval;
+
+ if (!joydev->exist) {
+ retval = -ENODEV;
+ goto out;
+ }
+
+ switch (cmd) {
+
+ case JS_SET_TIMELIMIT:
+ retval = get_user(tmp32, (s32 __user *) arg);
+ if (retval == 0)
+ joydev->glue.JS_TIMELIMIT = tmp32;
+ break;
+
+ case JS_GET_TIMELIMIT:
+ tmp32 = joydev->glue.JS_TIMELIMIT;
+ retval = put_user(tmp32, (s32 __user *) arg);
+ break;
+
+ case JS_SET_ALL:
+ retval = copy_from_user(&ds32, argp,
+ sizeof(ds32)) ? -EFAULT : 0;
+ if (retval == 0) {
+ joydev->glue.JS_TIMEOUT = ds32.JS_TIMEOUT;
+ joydev->glue.BUSY = ds32.BUSY;
+ joydev->glue.JS_EXPIRETIME = ds32.JS_EXPIRETIME;
+ joydev->glue.JS_TIMELIMIT = ds32.JS_TIMELIMIT;
+ joydev->glue.JS_SAVE = ds32.JS_SAVE;
+ joydev->glue.JS_CORR = ds32.JS_CORR;
+ }
+ break;
+
+ case JS_GET_ALL:
+ ds32.JS_TIMEOUT = joydev->glue.JS_TIMEOUT;
+ ds32.BUSY = joydev->glue.BUSY;
+ ds32.JS_EXPIRETIME = joydev->glue.JS_EXPIRETIME;
+ ds32.JS_TIMELIMIT = joydev->glue.JS_TIMELIMIT;
+ ds32.JS_SAVE = joydev->glue.JS_SAVE;
+ ds32.JS_CORR = joydev->glue.JS_CORR;
+
+ retval = copy_to_user(argp, &ds32, sizeof(ds32)) ? -EFAULT : 0;
+ break;
+
+ default:
+ retval = joydev_ioctl_common(joydev, cmd, argp);
+ break;
+ }
+
+ out:
+ mutex_unlock(&joydev->mutex);
+ return retval;
+}
+#endif /* CONFIG_COMPAT */
+
+static long joydev_ioctl(struct file *file,
+ unsigned int cmd, unsigned long arg)
+{
+ struct joydev_client *client = file->private_data;
+ struct joydev *joydev = client->joydev;
+ void __user *argp = (void __user *)arg;
+ int retval;
+
+ retval = mutex_lock_interruptible(&joydev->mutex);
+ if (retval)
+ return retval;
+
+ if (!joydev->exist) {
+ retval = -ENODEV;
+ goto out;
+ }
+
+ switch (cmd) {
+
+ case JS_SET_TIMELIMIT:
+ retval = get_user(joydev->glue.JS_TIMELIMIT,
+ (long __user *) arg);
+ break;
+
+ case JS_GET_TIMELIMIT:
+ retval = put_user(joydev->glue.JS_TIMELIMIT,
+ (long __user *) arg);
+ break;
+
+ case JS_SET_ALL:
+ retval = copy_from_user(&joydev->glue, argp,
+ sizeof(joydev->glue)) ? -EFAULT: 0;
+ break;
+
+ case JS_GET_ALL:
+ retval = copy_to_user(argp, &joydev->glue,
+ sizeof(joydev->glue)) ? -EFAULT : 0;
+ break;
+
+ default:
+ retval = joydev_ioctl_common(joydev, cmd, argp);
+ break;
+ }
+ out:
+ mutex_unlock(&joydev->mutex);
+ return retval;
+}
+
+static const struct file_operations joydev_fops = {
+ .owner = THIS_MODULE,
+ .read = joydev_read,
+ .poll = joydev_poll,
+ .open = joydev_open,
+ .release = joydev_release,
+ .unlocked_ioctl = joydev_ioctl,
+#ifdef CONFIG_COMPAT
+ .compat_ioctl = joydev_compat_ioctl,
+#endif
+ .fasync = joydev_fasync,
+ .llseek = no_llseek,
+};
+
+static int joydev_install_chrdev(struct joydev *joydev)
+{
+ joydev_table[joydev->minor] = joydev;
+ return 0;
+}
+
+static void joydev_remove_chrdev(struct joydev *joydev)
+{
+ mutex_lock(&joydev_table_mutex);
+ joydev_table[joydev->minor] = NULL;
+ mutex_unlock(&joydev_table_mutex);
+}
+
+/*
+ * Mark device non-existent. This disables writes, ioctls and
+ * prevents new users from opening the device. Already posted
+ * blocking reads will stay, however new ones will fail.
+ */
+static void joydev_mark_dead(struct joydev *joydev)
+{
+ mutex_lock(&joydev->mutex);
+ joydev->exist = false;
+ mutex_unlock(&joydev->mutex);
+}
+
+static void joydev_cleanup(struct joydev *joydev)
+{
+ struct input_handle *handle = &joydev->handle;
+
+ joydev_mark_dead(joydev);
+ joydev_hangup(joydev);
+ joydev_remove_chrdev(joydev);
+
+ /* joydev is marked dead so no one else accesses joydev->open */
+ if (joydev->open)
+ input_close_device(handle);
+}
+
+
+static bool joydev_match(struct input_handler *handler, struct input_dev *dev)
+{
+ /* Avoid touchpads and touchscreens */
+ if (test_bit(EV_KEY, dev->evbit) && test_bit(BTN_TOUCH, dev->keybit))
+ return false;
+
+ /* Avoid tablets, digitisers and similar devices */
+ if (test_bit(EV_KEY, dev->evbit) && test_bit(BTN_DIGI, dev->keybit))
+ return false;
+
+ return true;
+}
+
+static int joydev_connect(struct input_handler *handler, struct input_dev *dev,
+ const struct input_device_id *id)
+{
+ struct joydev *joydev;
+ int i, j, t, minor;
+ int error;
+
+ for (minor = 0; minor < JOYDEV_MINORS; minor++)
+ if (!joydev_table[minor])
+ break;
+
+ if (minor == JOYDEV_MINORS) {
+ pr_err("no more free joydev devices\n");
+ return -ENFILE;
+ }
+
+ joydev = kzalloc(sizeof(struct joydev), GFP_KERNEL);
+ if (!joydev)
+ return -ENOMEM;
+
+ INIT_LIST_HEAD(&joydev->client_list);
+ spin_lock_init(&joydev->client_lock);
+ mutex_init(&joydev->mutex);
+ init_waitqueue_head(&joydev->wait);
+
+ dev_set_name(&joydev->dev, "js%d", minor);
+ joydev->exist = true;
+ joydev->minor = minor;
+
+ joydev->handle.dev = input_get_device(dev);
+ joydev->handle.name = dev_name(&joydev->dev);
+ joydev->handle.handler = handler;
+ joydev->handle.private = joydev;
+
+ for (i = 0; i < ABS_CNT; i++)
+ if (test_bit(i, dev->absbit)) {
+ joydev->absmap[i] = joydev->nabs;
+ joydev->abspam[joydev->nabs] = i;
+ joydev->nabs++;
+ }
+
+ for (i = BTN_JOYSTICK - BTN_MISC; i < KEY_MAX - BTN_MISC + 1; i++)
+ if (test_bit(i + BTN_MISC, dev->keybit)) {
+ joydev->keymap[i] = joydev->nkey;
+ joydev->keypam[joydev->nkey] = i + BTN_MISC;
+ joydev->nkey++;
+ }
+
+ for (i = 0; i < BTN_JOYSTICK - BTN_MISC; i++)
+ if (test_bit(i + BTN_MISC, dev->keybit)) {
+ joydev->keymap[i] = joydev->nkey;
+ joydev->keypam[joydev->nkey] = i + BTN_MISC;
+ joydev->nkey++;
+ }
+
+ for (i = 0; i < joydev->nabs; i++) {
+ j = joydev->abspam[i];
+ if (input_abs_get_max(dev, j) == input_abs_get_min(dev, j)) {
+ joydev->corr[i].type = JS_CORR_NONE;
+ joydev->abs[i] = input_abs_get_val(dev, j);
+ continue;
+ }
+ joydev->corr[i].type = JS_CORR_BROKEN;
+ joydev->corr[i].prec = input_abs_get_fuzz(dev, j);
+
+ t = (input_abs_get_max(dev, j) + input_abs_get_min(dev, j)) / 2;
+ joydev->corr[i].coef[0] = t - input_abs_get_flat(dev, j);
+ joydev->corr[i].coef[1] = t + input_abs_get_flat(dev, j);
+
+ t = (input_abs_get_max(dev, j) - input_abs_get_min(dev, j)) / 2
+ - 2 * input_abs_get_flat(dev, j);
+ if (t) {
+ joydev->corr[i].coef[2] = (1 << 29) / t;
+ joydev->corr[i].coef[3] = (1 << 29) / t;
+
+ joydev->abs[i] =
+ joydev_correct(input_abs_get_val(dev, j),
+ joydev->corr + i);
+ }
+ }
+
+ joydev->dev.devt = MKDEV(INPUT_MAJOR, JOYDEV_MINOR_BASE + minor);
+ joydev->dev.class = &input_class;
+ joydev->dev.parent = &dev->dev;
+ joydev->dev.release = joydev_free;
+ device_initialize(&joydev->dev);
+
+ error = input_register_handle(&joydev->handle);
+ if (error)
+ goto err_free_joydev;
+
+ error = joydev_install_chrdev(joydev);
+ if (error)
+ goto err_unregister_handle;
+
+ error = device_add(&joydev->dev);
+ if (error)
+ goto err_cleanup_joydev;
+
+ return 0;
+
+ err_cleanup_joydev:
+ joydev_cleanup(joydev);
+ err_unregister_handle:
+ input_unregister_handle(&joydev->handle);
+ err_free_joydev:
+ put_device(&joydev->dev);
+ return error;
+}
+
+static void joydev_disconnect(struct input_handle *handle)
+{
+ struct joydev *joydev = handle->private;
+
+ device_del(&joydev->dev);
+ joydev_cleanup(joydev);
+ input_unregister_handle(handle);
+ put_device(&joydev->dev);
+}
+
+static const struct input_device_id joydev_ids[] = {
+ {
+ .flags = INPUT_DEVICE_ID_MATCH_EVBIT |
+ INPUT_DEVICE_ID_MATCH_ABSBIT,
+ .evbit = { BIT_MASK(EV_ABS) },
+ .absbit = { BIT_MASK(ABS_X) },
+ },
+ {
+ .flags = INPUT_DEVICE_ID_MATCH_EVBIT |
+ INPUT_DEVICE_ID_MATCH_ABSBIT,
+ .evbit = { BIT_MASK(EV_ABS) },
+ .absbit = { BIT_MASK(ABS_WHEEL) },
+ },
+ {
+ .flags = INPUT_DEVICE_ID_MATCH_EVBIT |
+ INPUT_DEVICE_ID_MATCH_ABSBIT,
+ .evbit = { BIT_MASK(EV_ABS) },
+ .absbit = { BIT_MASK(ABS_THROTTLE) },
+ },
+ {
+ .flags = INPUT_DEVICE_ID_MATCH_EVBIT |
+ INPUT_DEVICE_ID_MATCH_KEYBIT,
+ .evbit = { BIT_MASK(EV_KEY) },
+ .keybit = {[BIT_WORD(BTN_JOYSTICK)] = BIT_MASK(BTN_JOYSTICK) },
+ },
+ {
+ .flags = INPUT_DEVICE_ID_MATCH_EVBIT |
+ INPUT_DEVICE_ID_MATCH_KEYBIT,
+ .evbit = { BIT_MASK(EV_KEY) },
+ .keybit = { [BIT_WORD(BTN_GAMEPAD)] = BIT_MASK(BTN_GAMEPAD) },
+ },
+ {
+ .flags = INPUT_DEVICE_ID_MATCH_EVBIT |
+ INPUT_DEVICE_ID_MATCH_KEYBIT,
+ .evbit = { BIT_MASK(EV_KEY) },
+ .keybit = { [BIT_WORD(BTN_TRIGGER_HAPPY)] = BIT_MASK(BTN_TRIGGER_HAPPY) },
+ },
+ { } /* Terminating entry */
+};
+
+MODULE_DEVICE_TABLE(input, joydev_ids);
+
+static struct input_handler joydev_handler = {
+ .event = joydev_event,
+ .match = joydev_match,
+ .connect = joydev_connect,
+ .disconnect = joydev_disconnect,
+ .fops = &joydev_fops,
+ .minor = JOYDEV_MINOR_BASE,
+ .name = "joydev",
+ .id_table = joydev_ids,
+};
+
+static int __init joydev_init(void)
+{
+ return input_register_handler(&joydev_handler);
+}
+
+static void __exit joydev_exit(void)
+{
+ input_unregister_handler(&joydev_handler);
+}
+
+module_init(joydev_init);
+module_exit(joydev_exit);
diff --git a/drivers/input/joystick/Kconfig b/drivers/input/joystick/Kconfig
new file mode 100644
index 0000000..56eb471
--- /dev/null
+++ b/drivers/input/joystick/Kconfig
@@ -0,0 +1,332 @@
+#
+# Joystick driver configuration
+#
+menuconfig INPUT_JOYSTICK
+ bool "Joysticks/Gamepads"
+ help
+ If you have a joystick, 6dof controller, gamepad, steering wheel,
+ weapon control system or something like that you can say Y here
+ and the list of supported devices will be displayed. This option
+ doesn't affect the kernel.
+
+ Please read the file <file:Documentation/input/joystick.txt> which
+ contains more information.
+
+if INPUT_JOYSTICK
+
+config JOYSTICK_ANALOG
+ tristate "Classic PC analog joysticks and gamepads"
+ select GAMEPORT
+ ---help---
+ Say Y here if you have a joystick that connects to the PC
+ gameport. In addition to the usual PC analog joystick, this driver
+ supports many extensions, including joysticks with throttle control,
+ with rudders, additional hats and buttons compatible with CH
+ Flightstick Pro, ThrustMaster FCS, 6 and 8 button gamepads, or
+ Saitek Cyborg joysticks.
+
+ Please read the file <file:Documentation/input/joystick.txt> which
+ contains more information.
+
+ To compile this driver as a module, choose M here: the
+ module will be called analog.
+
+config JOYSTICK_A3D
+ tristate "Assassin 3D and MadCatz Panther devices"
+ select GAMEPORT
+ help
+ Say Y here if you have an FPGaming or MadCatz controller using the
+ A3D protocol over the PC gameport.
+
+ To compile this driver as a module, choose M here: the
+ module will be called a3d.
+
+config JOYSTICK_ADI
+ tristate "Logitech ADI digital joysticks and gamepads"
+ select GAMEPORT
+ help
+ Say Y here if you have a Logitech controller using the ADI
+ protocol over the PC gameport.
+
+ To compile this driver as a module, choose M here: the
+ module will be called adi.
+
+config JOYSTICK_COBRA
+ tristate "Creative Labs Blaster Cobra gamepad"
+ select GAMEPORT
+ help
+ Say Y here if you have a Creative Labs Blaster Cobra gamepad.
+
+ To compile this driver as a module, choose M here: the
+ module will be called cobra.
+
+config JOYSTICK_GF2K
+ tristate "Genius Flight2000 Digital joysticks and gamepads"
+ select GAMEPORT
+ help
+ Say Y here if you have a Genius Flight2000 or MaxFighter digitally
+ communicating joystick or gamepad.
+
+ To compile this driver as a module, choose M here: the
+ module will be called gf2k.
+
+config JOYSTICK_GRIP
+ tristate "Gravis GrIP joysticks and gamepads"
+ select GAMEPORT
+ help
+ Say Y here if you have a Gravis controller using the GrIP protocol
+ over the PC gameport.
+
+ To compile this driver as a module, choose M here: the
+ module will be called grip.
+
+config JOYSTICK_GRIP_MP
+ tristate "Gravis GrIP MultiPort"
+ select GAMEPORT
+ help
+ Say Y here if you have the original Gravis GrIP MultiPort, a hub
+ that connects to the gameport and you connect gamepads to it.
+
+ To compile this driver as a module, choose M here: the
+ module will be called grip_mp.
+
+config JOYSTICK_GUILLEMOT
+ tristate "Guillemot joysticks and gamepads"
+ select GAMEPORT
+ help
+ Say Y here if you have a Guillemot joystick using a digital
+ protocol over the PC gameport.
+
+ To compile this driver as a module, choose M here: the
+ module will be called guillemot.
+
+config JOYSTICK_INTERACT
+ tristate "InterAct digital joysticks and gamepads"
+ select GAMEPORT
+ help
+ Say Y here if you have an InterAct gameport or joystick
+ communicating digitally over the gameport.
+
+ To compile this driver as a module, choose M here: the
+ module will be called interact.
+
+config JOYSTICK_SIDEWINDER
+ tristate "Microsoft SideWinder digital joysticks and gamepads"
+ select GAMEPORT
+ help
+ Say Y here if you have a Microsoft controller using the Digital
+ Overdrive protocol over PC gameport.
+
+ To compile this driver as a module, choose M here: the
+ module will be called sidewinder.
+
+config JOYSTICK_TMDC
+ tristate "ThrustMaster DirectConnect joysticks and gamepads"
+ select GAMEPORT
+ help
+ Say Y here if you have a ThrustMaster controller using the
+ DirectConnect (BSP) protocol over the PC gameport.
+
+ To compile this driver as a module, choose M here: the
+ module will be called tmdc.
+
+source "drivers/input/joystick/iforce/Kconfig"
+
+config JOYSTICK_WARRIOR
+ tristate "Logitech WingMan Warrior joystick"
+ select SERIO
+ help
+ Say Y here if you have a Logitech WingMan Warrior joystick connected
+ to your computer's serial port.
+
+ To compile this driver as a module, choose M here: the
+ module will be called warrior.
+
+config JOYSTICK_MAGELLAN
+ tristate "LogiCad3d Magellan/SpaceMouse 6dof controllers"
+ select SERIO
+ help
+ Say Y here if you have a Magellan or Space Mouse 6DOF controller
+ connected to your computer's serial port.
+
+ To compile this driver as a module, choose M here: the
+ module will be called magellan.
+
+config JOYSTICK_SPACEORB
+ tristate "SpaceTec SpaceOrb/Avenger 6dof controllers"
+ select SERIO
+ help
+ Say Y here if you have a SpaceOrb 360 or SpaceBall Avenger 6DOF
+ controller connected to your computer's serial port.
+
+ To compile this driver as a module, choose M here: the
+ module will be called spaceorb.
+
+config JOYSTICK_SPACEBALL
+ tristate "SpaceTec SpaceBall 6dof controllers"
+ select SERIO
+ help
+ Say Y here if you have a SpaceTec SpaceBall 2003/3003/4000 FLX
+ controller connected to your computer's serial port. For the
+ SpaceBall 4000 USB model, use the USB HID driver.
+
+ To compile this driver as a module, choose M here: the
+ module will be called spaceball.
+
+config JOYSTICK_STINGER
+ tristate "Gravis Stinger gamepad"
+ select SERIO
+ help
+ Say Y here if you have a Gravis Stinger connected to one of your
+ serial ports.
+
+ To compile this driver as a module, choose M here: the
+ module will be called stinger.
+
+config JOYSTICK_TWIDJOY
+ tristate "Twiddler as a joystick"
+ select SERIO
+ help
+ Say Y here if you have a Handykey Twiddler connected to your
+ computer's serial port and want to use it as a joystick.
+
+ To compile this driver as a module, choose M here: the
+ module will be called twidjoy.
+
+config JOYSTICK_ZHENHUA
+ tristate "5-byte Zhenhua RC transmitter"
+ select SERIO
+ help
+ Say Y here if you have a Zhen Hua PPM-4CH transmitter which is
+ supplied with a ready to fly micro electric indoor helicopters
+ such as EasyCopter, Lama, MiniCopter, DragonFly or Jabo and want
+ to use it via serial cable as a joystick.
+
+ To compile this driver as a module, choose M here: the
+ module will be called zhenhua.
+
+config JOYSTICK_DB9
+ tristate "Multisystem, Sega Genesis, Saturn joysticks and gamepads"
+ depends on PARPORT
+ help
+ Say Y here if you have a Sega Master System gamepad, Sega Genesis
+ gamepad, Sega Saturn gamepad, or a Multisystem -- Atari, Amiga,
+ Commodore, Amstrad CPC joystick connected to your parallel port.
+ For more information on how to use the driver please read
+ <file:Documentation/input/joystick-parport.txt>.
+
+ To compile this driver as a module, choose M here: the
+ module will be called db9.
+
+config JOYSTICK_GAMECON
+ tristate "Multisystem, NES, SNES, N64, PSX joysticks and gamepads"
+ depends on PARPORT
+ select INPUT_FF_MEMLESS
+ ---help---
+ Say Y here if you have a Nintendo Entertainment System gamepad,
+ Super Nintendo Entertainment System gamepad, Nintendo 64 gamepad,
+ Sony PlayStation gamepad or a Multisystem -- Atari, Amiga,
+ Commodore, Amstrad CPC joystick connected to your parallel port.
+ For more information on how to use the driver please read
+ <file:Documentation/input/joystick-parport.txt>.
+
+ To compile this driver as a module, choose M here: the
+ module will be called gamecon.
+
+config JOYSTICK_TURBOGRAFX
+ tristate "Multisystem joysticks via TurboGraFX device"
+ depends on PARPORT
+ help
+ Say Y here if you have the TurboGraFX interface by Steffen Schwenke,
+ and want to use it with Multisystem -- Atari, Amiga, Commodore,
+ Amstrad CPC joystick. For more information on how to use the driver
+ please read <file:Documentation/input/joystick-parport.txt>.
+
+ To compile this driver as a module, choose M here: the
+ module will be called turbografx.
+
+config JOYSTICK_AMIGA
+ tristate "Amiga joysticks"
+ depends on AMIGA
+ help
+ Say Y here if you have an Amiga with a digital joystick connected
+ to it.
+
+ To compile this driver as a module, choose M here: the
+ module will be called amijoy.
+
+config JOYSTICK_AS5011
+ tristate "Austria Microsystem AS5011 joystick"
+ depends on I2C
+ help
+ Say Y here if you have an AS5011 digital joystick connected to your
+ system.
+
+ To compile this driver as a module, choose M here: the
+ module will be called as5011.
+
+config JOYSTICK_JOYDUMP
+ tristate "Gameport data dumper"
+ select GAMEPORT
+ help
+ Say Y here if you want to dump data from your joystick into the system
+ log for debugging purposes. Say N if you are making a production
+ configuration or aren't sure.
+
+ To compile this driver as a module, choose M here: the
+ module will be called joydump.
+
+config JOYSTICK_XPAD
+ tristate "X-Box gamepad support"
+ depends on USB_ARCH_HAS_HCD
+ select USB
+ help
+ Say Y here if you want to use the X-Box pad with your computer.
+ Make sure to say Y to "Joystick support" (CONFIG_INPUT_JOYDEV)
+ and/or "Event interface support" (CONFIG_INPUT_EVDEV) as well.
+
+ For information about how to connect the X-Box pad to USB, see
+ <file:Documentation/input/xpad.txt>.
+
+ To compile this driver as a module, choose M here: the
+ module will be called xpad.
+
+config JOYSTICK_XPAD_FF
+ bool "X-Box gamepad rumble support"
+ depends on JOYSTICK_XPAD && INPUT
+ select INPUT_FF_MEMLESS
+ ---help---
+ Say Y here if you want to take advantage of xbox 360 rumble features.
+
+config JOYSTICK_XPAD_LEDS
+ bool "LED Support for Xbox360 controller 'BigX' LED"
+ depends on JOYSTICK_XPAD && (LEDS_CLASS=y || LEDS_CLASS=JOYSTICK_XPAD)
+ ---help---
+ This option enables support for the LED which surrounds the Big X on
+ XBox 360 controller.
+
+config JOYSTICK_WALKERA0701
+ tristate "Walkera WK-0701 RC transmitter"
+ depends on HIGH_RES_TIMERS && PARPORT
+ help
+ Say Y or M here if you have a Walkera WK-0701 transmitter which is
+ supplied with a ready to fly Walkera helicopters such as HM36,
+ HM37, HM60 and want to use it via parport as a joystick. More
+ information is available: <file:Documentation/input/walkera0701.txt>
+
+ To compile this driver as a module, choose M here: the
+ module will be called walkera0701.
+
+config JOYSTICK_MAPLE
+ tristate "Dreamcast control pad"
+ depends on MAPLE
+ help
+ Say Y here if you have a SEGA Dreamcast and want to use your
+ controller as a joystick.
+
+ Most Dreamcast users will say Y.
+
+ To compile this as a module choose M here: the module will be called
+ maplecontrol.
+
+endif
diff --git a/drivers/input/joystick/Makefile b/drivers/input/joystick/Makefile
new file mode 100644
index 0000000..92dc0de
--- /dev/null
+++ b/drivers/input/joystick/Makefile
@@ -0,0 +1,35 @@
+#
+# Makefile for the input core drivers.
+#
+
+# Each configuration option enables a list of files.
+
+obj-$(CONFIG_JOYSTICK_A3D) += a3d.o
+obj-$(CONFIG_JOYSTICK_ADI) += adi.o
+obj-$(CONFIG_JOYSTICK_AMIGA) += amijoy.o
+obj-$(CONFIG_JOYSTICK_AS5011) += as5011.o
+obj-$(CONFIG_JOYSTICK_ANALOG) += analog.o
+obj-$(CONFIG_JOYSTICK_COBRA) += cobra.o
+obj-$(CONFIG_JOYSTICK_DB9) += db9.o
+obj-$(CONFIG_JOYSTICK_GAMECON) += gamecon.o
+obj-$(CONFIG_JOYSTICK_GF2K) += gf2k.o
+obj-$(CONFIG_JOYSTICK_GRIP) += grip.o
+obj-$(CONFIG_JOYSTICK_GRIP_MP) += grip_mp.o
+obj-$(CONFIG_JOYSTICK_GUILLEMOT) += guillemot.o
+obj-$(CONFIG_JOYSTICK_IFORCE) += iforce/
+obj-$(CONFIG_JOYSTICK_INTERACT) += interact.o
+obj-$(CONFIG_JOYSTICK_JOYDUMP) += joydump.o
+obj-$(CONFIG_JOYSTICK_MAGELLAN) += magellan.o
+obj-$(CONFIG_JOYSTICK_MAPLE) += maplecontrol.o
+obj-$(CONFIG_JOYSTICK_SIDEWINDER) += sidewinder.o
+obj-$(CONFIG_JOYSTICK_SPACEBALL) += spaceball.o
+obj-$(CONFIG_JOYSTICK_SPACEORB) += spaceorb.o
+obj-$(CONFIG_JOYSTICK_STINGER) += stinger.o
+obj-$(CONFIG_JOYSTICK_TMDC) += tmdc.o
+obj-$(CONFIG_JOYSTICK_TURBOGRAFX) += turbografx.o
+obj-$(CONFIG_JOYSTICK_TWIDJOY) += twidjoy.o
+obj-$(CONFIG_JOYSTICK_WARRIOR) += warrior.o
+obj-$(CONFIG_JOYSTICK_XPAD) += xpad.o
+obj-$(CONFIG_JOYSTICK_ZHENHUA) += zhenhua.o
+obj-$(CONFIG_JOYSTICK_WALKERA0701) += walkera0701.o
+
diff --git a/drivers/input/joystick/a3d.c b/drivers/input/joystick/a3d.c
new file mode 100644
index 0000000..1639ab2
--- /dev/null
+++ b/drivers/input/joystick/a3d.c
@@ -0,0 +1,427 @@
+/*
+ * Copyright (c) 1998-2001 Vojtech Pavlik
+ */
+
+/*
+ * FP-Gaming Assassin 3D joystick driver for Linux
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * Should you need to contact me, the author, you can do so either by
+ * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
+ * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/init.h>
+#include <linux/gameport.h>
+#include <linux/input.h>
+#include <linux/jiffies.h>
+
+#define DRIVER_DESC "FP-Gaming Assassin 3D joystick driver"
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+#define A3D_MAX_START 600 /* 600 us */
+#define A3D_MAX_STROBE 80 /* 80 us */
+#define A3D_MAX_LENGTH 40 /* 40*3 bits */
+
+#define A3D_MODE_A3D 1 /* Assassin 3D */
+#define A3D_MODE_PAN 2 /* Panther */
+#define A3D_MODE_OEM 3 /* Panther OEM version */
+#define A3D_MODE_PXL 4 /* Panther XL */
+
+static char *a3d_names[] = { NULL, "FP-Gaming Assassin 3D", "MadCatz Panther", "OEM Panther",
+ "MadCatz Panther XL", "MadCatz Panther XL w/ rudder" };
+
+struct a3d {
+ struct gameport *gameport;
+ struct gameport *adc;
+ struct input_dev *dev;
+ int axes[4];
+ int buttons;
+ int mode;
+ int length;
+ int reads;
+ int bads;
+ char phys[32];
+};
+
+/*
+ * a3d_read_packet() reads an Assassin 3D packet.
+ */
+
+static int a3d_read_packet(struct gameport *gameport, int length, char *data)
+{
+ unsigned long flags;
+ unsigned char u, v;
+ unsigned int t, s;
+ int i;
+
+ i = 0;
+ t = gameport_time(gameport, A3D_MAX_START);
+ s = gameport_time(gameport, A3D_MAX_STROBE);
+
+ local_irq_save(flags);
+ gameport_trigger(gameport);
+ v = gameport_read(gameport);
+
+ while (t > 0 && i < length) {
+ t--;
+ u = v; v = gameport_read(gameport);
+ if (~v & u & 0x10) {
+ data[i++] = v >> 5;
+ t = s;
+ }
+ }
+
+ local_irq_restore(flags);
+
+ return i;
+}
+
+/*
+ * a3d_csum() computes checksum of triplet packet
+ */
+
+static int a3d_csum(char *data, int count)
+{
+ int i, csum = 0;
+
+ for (i = 0; i < count - 2; i++)
+ csum += data[i];
+ return (csum & 0x3f) != ((data[count - 2] << 3) | data[count - 1]);
+}
+
+static void a3d_read(struct a3d *a3d, unsigned char *data)
+{
+ struct input_dev *dev = a3d->dev;
+
+ switch (a3d->mode) {
+
+ case A3D_MODE_A3D:
+ case A3D_MODE_OEM:
+ case A3D_MODE_PAN:
+
+ input_report_rel(dev, REL_X, ((data[5] << 6) | (data[6] << 3) | data[ 7]) - ((data[5] & 4) << 7));
+ input_report_rel(dev, REL_Y, ((data[8] << 6) | (data[9] << 3) | data[10]) - ((data[8] & 4) << 7));
+
+ input_report_key(dev, BTN_RIGHT, data[2] & 1);
+ input_report_key(dev, BTN_LEFT, data[3] & 2);
+ input_report_key(dev, BTN_MIDDLE, data[3] & 4);
+
+ input_sync(dev);
+
+ a3d->axes[0] = ((signed char)((data[11] << 6) | (data[12] << 3) | (data[13]))) + 128;
+ a3d->axes[1] = ((signed char)((data[14] << 6) | (data[15] << 3) | (data[16]))) + 128;
+ a3d->axes[2] = ((signed char)((data[17] << 6) | (data[18] << 3) | (data[19]))) + 128;
+ a3d->axes[3] = ((signed char)((data[20] << 6) | (data[21] << 3) | (data[22]))) + 128;
+
+ a3d->buttons = ((data[3] << 3) | data[4]) & 0xf;
+
+ break;
+
+ case A3D_MODE_PXL:
+
+ input_report_rel(dev, REL_X, ((data[ 9] << 6) | (data[10] << 3) | data[11]) - ((data[ 9] & 4) << 7));
+ input_report_rel(dev, REL_Y, ((data[12] << 6) | (data[13] << 3) | data[14]) - ((data[12] & 4) << 7));
+
+ input_report_key(dev, BTN_RIGHT, data[2] & 1);
+ input_report_key(dev, BTN_LEFT, data[3] & 2);
+ input_report_key(dev, BTN_MIDDLE, data[3] & 4);
+ input_report_key(dev, BTN_SIDE, data[7] & 2);
+ input_report_key(dev, BTN_EXTRA, data[7] & 4);
+
+ input_report_abs(dev, ABS_X, ((signed char)((data[15] << 6) | (data[16] << 3) | (data[17]))) + 128);
+ input_report_abs(dev, ABS_Y, ((signed char)((data[18] << 6) | (data[19] << 3) | (data[20]))) + 128);
+ input_report_abs(dev, ABS_RUDDER, ((signed char)((data[21] << 6) | (data[22] << 3) | (data[23]))) + 128);
+ input_report_abs(dev, ABS_THROTTLE, ((signed char)((data[24] << 6) | (data[25] << 3) | (data[26]))) + 128);
+
+ input_report_abs(dev, ABS_HAT0X, ( data[5] & 1) - ((data[5] >> 2) & 1));
+ input_report_abs(dev, ABS_HAT0Y, ((data[5] >> 1) & 1) - ((data[6] >> 2) & 1));
+ input_report_abs(dev, ABS_HAT1X, ((data[4] >> 1) & 1) - ( data[3] & 1));
+ input_report_abs(dev, ABS_HAT1Y, ((data[4] >> 2) & 1) - ( data[4] & 1));
+
+ input_report_key(dev, BTN_TRIGGER, data[8] & 1);
+ input_report_key(dev, BTN_THUMB, data[8] & 2);
+ input_report_key(dev, BTN_TOP, data[8] & 4);
+ input_report_key(dev, BTN_PINKIE, data[7] & 1);
+
+ input_sync(dev);
+
+ break;
+ }
+}
+
+
+/*
+ * a3d_poll() reads and analyzes A3D joystick data.
+ */
+
+static void a3d_poll(struct gameport *gameport)
+{
+ struct a3d *a3d = gameport_get_drvdata(gameport);
+ unsigned char data[A3D_MAX_LENGTH];
+
+ a3d->reads++;
+ if (a3d_read_packet(a3d->gameport, a3d->length, data) != a3d->length ||
+ data[0] != a3d->mode || a3d_csum(data, a3d->length))
+ a3d->bads++;
+ else
+ a3d_read(a3d, data);
+}
+
+/*
+ * a3d_adc_cooked_read() copies the acis and button data to the
+ * callers arrays. It could do the read itself, but the caller could
+ * call this more than 50 times a second, which would use too much CPU.
+ */
+
+static int a3d_adc_cooked_read(struct gameport *gameport, int *axes, int *buttons)
+{
+ struct a3d *a3d = gameport->port_data;
+ int i;
+
+ for (i = 0; i < 4; i++)
+ axes[i] = (a3d->axes[i] < 254) ? a3d->axes[i] : -1;
+ *buttons = a3d->buttons;
+ return 0;
+}
+
+/*
+ * a3d_adc_open() is the gameport open routine. It refuses to serve
+ * any but cooked data.
+ */
+
+static int a3d_adc_open(struct gameport *gameport, int mode)
+{
+ struct a3d *a3d = gameport->port_data;
+
+ if (mode != GAMEPORT_MODE_COOKED)
+ return -1;
+
+ gameport_start_polling(a3d->gameport);
+ return 0;
+}
+
+/*
+ * a3d_adc_close() is a callback from the input close routine.
+ */
+
+static void a3d_adc_close(struct gameport *gameport)
+{
+ struct a3d *a3d = gameport->port_data;
+
+ gameport_stop_polling(a3d->gameport);
+}
+
+/*
+ * a3d_open() is a callback from the input open routine.
+ */
+
+static int a3d_open(struct input_dev *dev)
+{
+ struct a3d *a3d = input_get_drvdata(dev);
+
+ gameport_start_polling(a3d->gameport);
+ return 0;
+}
+
+/*
+ * a3d_close() is a callback from the input close routine.
+ */
+
+static void a3d_close(struct input_dev *dev)
+{
+ struct a3d *a3d = input_get_drvdata(dev);
+
+ gameport_stop_polling(a3d->gameport);
+}
+
+/*
+ * a3d_connect() probes for A3D joysticks.
+ */
+
+static int a3d_connect(struct gameport *gameport, struct gameport_driver *drv)
+{
+ struct a3d *a3d;
+ struct input_dev *input_dev;
+ struct gameport *adc;
+ unsigned char data[A3D_MAX_LENGTH];
+ int i;
+ int err;
+
+ a3d = kzalloc(sizeof(struct a3d), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!a3d || !input_dev) {
+ err = -ENOMEM;
+ goto fail1;
+ }
+
+ a3d->dev = input_dev;
+ a3d->gameport = gameport;
+
+ gameport_set_drvdata(gameport, a3d);
+
+ err = gameport_open(gameport, drv, GAMEPORT_MODE_RAW);
+ if (err)
+ goto fail1;
+
+ i = a3d_read_packet(gameport, A3D_MAX_LENGTH, data);
+
+ if (!i || a3d_csum(data, i)) {
+ err = -ENODEV;
+ goto fail2;
+ }
+
+ a3d->mode = data[0];
+
+ if (!a3d->mode || a3d->mode > 5) {
+ printk(KERN_WARNING "a3d.c: Unknown A3D device detected "
+ "(%s, id=%d), contact <vojtech@ucw.cz>\n", gameport->phys, a3d->mode);
+ err = -ENODEV;
+ goto fail2;
+ }
+
+ gameport_set_poll_handler(gameport, a3d_poll);
+ gameport_set_poll_interval(gameport, 20);
+
+ snprintf(a3d->phys, sizeof(a3d->phys), "%s/input0", gameport->phys);
+
+ input_dev->name = a3d_names[a3d->mode];
+ input_dev->phys = a3d->phys;
+ input_dev->id.bustype = BUS_GAMEPORT;
+ input_dev->id.vendor = GAMEPORT_ID_VENDOR_MADCATZ;
+ input_dev->id.product = a3d->mode;
+ input_dev->id.version = 0x0100;
+ input_dev->dev.parent = &gameport->dev;
+ input_dev->open = a3d_open;
+ input_dev->close = a3d_close;
+
+ input_set_drvdata(input_dev, a3d);
+
+ if (a3d->mode == A3D_MODE_PXL) {
+
+ int axes[] = { ABS_X, ABS_Y, ABS_THROTTLE, ABS_RUDDER };
+
+ a3d->length = 33;
+
+ input_dev->evbit[0] |= BIT_MASK(EV_ABS) | BIT_MASK(EV_KEY) |
+ BIT_MASK(EV_REL);
+ input_dev->relbit[0] |= BIT_MASK(REL_X) | BIT_MASK(REL_Y);
+ input_dev->absbit[0] |= BIT_MASK(ABS_X) | BIT_MASK(ABS_Y) |
+ BIT_MASK(ABS_THROTTLE) | BIT_MASK(ABS_RUDDER) |
+ BIT_MASK(ABS_HAT0X) | BIT_MASK(ABS_HAT0Y) |
+ BIT_MASK(ABS_HAT1X) | BIT_MASK(ABS_HAT1Y);
+ input_dev->keybit[BIT_WORD(BTN_MOUSE)] |= BIT_MASK(BTN_RIGHT) |
+ BIT_MASK(BTN_LEFT) | BIT_MASK(BTN_MIDDLE) |
+ BIT_MASK(BTN_SIDE) | BIT_MASK(BTN_EXTRA);
+ input_dev->keybit[BIT_WORD(BTN_JOYSTICK)] |=
+ BIT_MASK(BTN_TRIGGER) | BIT_MASK(BTN_THUMB) |
+ BIT_MASK(BTN_TOP) | BIT_MASK(BTN_PINKIE);
+
+ a3d_read(a3d, data);
+
+ for (i = 0; i < 4; i++) {
+ if (i < 2)
+ input_set_abs_params(input_dev, axes[i],
+ 48, input_abs_get_val(input_dev, axes[i]) * 2 - 48, 0, 8);
+ else
+ input_set_abs_params(input_dev, axes[i], 2, 253, 0, 0);
+ input_set_abs_params(input_dev, ABS_HAT0X + i, -1, 1, 0, 0);
+ }
+
+ } else {
+ a3d->length = 29;
+
+ input_dev->evbit[0] |= BIT_MASK(EV_KEY) | BIT_MASK(EV_REL);
+ input_dev->relbit[0] |= BIT_MASK(REL_X) | BIT_MASK(REL_Y);
+ input_dev->keybit[BIT_WORD(BTN_MOUSE)] |= BIT_MASK(BTN_RIGHT) |
+ BIT_MASK(BTN_LEFT) | BIT_MASK(BTN_MIDDLE);
+
+ a3d_read(a3d, data);
+
+ if (!(a3d->adc = adc = gameport_allocate_port()))
+ printk(KERN_ERR "a3d: Not enough memory for ADC port\n");
+ else {
+ adc->port_data = a3d;
+ adc->open = a3d_adc_open;
+ adc->close = a3d_adc_close;
+ adc->cooked_read = a3d_adc_cooked_read;
+ adc->fuzz = 1;
+
+ gameport_set_name(adc, a3d_names[a3d->mode]);
+ gameport_set_phys(adc, "%s/gameport0", gameport->phys);
+ adc->dev.parent = &gameport->dev;
+
+ gameport_register_port(adc);
+ }
+ }
+
+ err = input_register_device(a3d->dev);
+ if (err)
+ goto fail3;
+
+ return 0;
+
+ fail3: if (a3d->adc)
+ gameport_unregister_port(a3d->adc);
+ fail2: gameport_close(gameport);
+ fail1: gameport_set_drvdata(gameport, NULL);
+ input_free_device(input_dev);
+ kfree(a3d);
+ return err;
+}
+
+static void a3d_disconnect(struct gameport *gameport)
+{
+ struct a3d *a3d = gameport_get_drvdata(gameport);
+
+ input_unregister_device(a3d->dev);
+ if (a3d->adc)
+ gameport_unregister_port(a3d->adc);
+ gameport_close(gameport);
+ gameport_set_drvdata(gameport, NULL);
+ kfree(a3d);
+}
+
+static struct gameport_driver a3d_drv = {
+ .driver = {
+ .name = "adc",
+ .owner = THIS_MODULE,
+ },
+ .description = DRIVER_DESC,
+ .connect = a3d_connect,
+ .disconnect = a3d_disconnect,
+};
+
+static int __init a3d_init(void)
+{
+ return gameport_register_driver(&a3d_drv);
+}
+
+static void __exit a3d_exit(void)
+{
+ gameport_unregister_driver(&a3d_drv);
+}
+
+module_init(a3d_init);
+module_exit(a3d_exit);
diff --git a/drivers/input/joystick/adi.c b/drivers/input/joystick/adi.c
new file mode 100644
index 0000000..b992fbf
--- /dev/null
+++ b/drivers/input/joystick/adi.c
@@ -0,0 +1,584 @@
+/*
+ * Copyright (c) 1998-2005 Vojtech Pavlik
+ */
+
+/*
+ * Logitech ADI joystick family driver for Linux
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * Should you need to contact me, the author, you can do so either by
+ * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
+ * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
+ */
+
+#include <linux/delay.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/string.h>
+#include <linux/slab.h>
+#include <linux/input.h>
+#include <linux/gameport.h>
+#include <linux/init.h>
+#include <linux/jiffies.h>
+
+#define DRIVER_DESC "Logitech ADI joystick family driver"
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+/*
+ * Times, array sizes, flags, ids.
+ */
+
+#define ADI_MAX_START 200 /* Trigger to packet timeout [200us] */
+#define ADI_MAX_STROBE 40 /* Single bit timeout [40us] */
+#define ADI_INIT_DELAY 10 /* Delay after init packet [10ms] */
+#define ADI_DATA_DELAY 4 /* Delay after data packet [4ms] */
+
+#define ADI_MAX_LENGTH 256
+#define ADI_MIN_LENGTH 8
+#define ADI_MIN_LEN_LENGTH 10
+#define ADI_MIN_ID_LENGTH 66
+#define ADI_MAX_NAME_LENGTH 64
+#define ADI_MAX_CNAME_LENGTH 16
+#define ADI_MAX_PHYS_LENGTH 64
+
+#define ADI_FLAG_HAT 0x04
+#define ADI_FLAG_10BIT 0x08
+
+#define ADI_ID_TPD 0x01
+#define ADI_ID_WGP 0x06
+#define ADI_ID_WGPE 0x08
+#define ADI_ID_MAX 0x0a
+
+/*
+ * Names, buttons, axes ...
+ */
+
+static char *adi_names[] = { "WingMan Extreme Digital", "ThunderPad Digital", "SideCar", "CyberMan 2",
+ "WingMan Interceptor", "WingMan Formula", "WingMan GamePad",
+ "WingMan Extreme Digital 3D", "WingMan GamePad Extreme",
+ "WingMan GamePad USB", "Unknown Device %#x" };
+
+static char adi_wmgpe_abs[] = { ABS_X, ABS_Y, ABS_HAT0X, ABS_HAT0Y };
+static char adi_wmi_abs[] = { ABS_X, ABS_Y, ABS_THROTTLE, ABS_HAT0X, ABS_HAT0Y, ABS_HAT1X, ABS_HAT1Y, ABS_HAT2X, ABS_HAT2Y };
+static char adi_wmed3d_abs[] = { ABS_X, ABS_Y, ABS_THROTTLE, ABS_RZ, ABS_HAT0X, ABS_HAT0Y };
+static char adi_cm2_abs[] = { ABS_X, ABS_Y, ABS_Z, ABS_RX, ABS_RY, ABS_RZ };
+static char adi_wmf_abs[] = { ABS_WHEEL, ABS_GAS, ABS_BRAKE, ABS_HAT0X, ABS_HAT0Y, ABS_HAT1X, ABS_HAT1Y, ABS_HAT2X, ABS_HAT2Y };
+
+static short adi_wmgpe_key[] = { BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z, BTN_TL, BTN_TR, BTN_START, BTN_MODE, BTN_SELECT };
+static short adi_wmi_key[] = { BTN_TRIGGER, BTN_TOP, BTN_THUMB, BTN_TOP2, BTN_BASE, BTN_BASE2, BTN_BASE3, BTN_BASE4, BTN_EXTRA };
+static short adi_wmed3d_key[] = { BTN_TRIGGER, BTN_THUMB, BTN_THUMB2, BTN_TOP, BTN_TOP2, BTN_BASE, BTN_BASE2 };
+static short adi_cm2_key[] = { BTN_1, BTN_2, BTN_3, BTN_4, BTN_5, BTN_6, BTN_7, BTN_8 };
+
+static char* adi_abs[] = { adi_wmi_abs, adi_wmgpe_abs, adi_wmf_abs, adi_cm2_abs, adi_wmi_abs, adi_wmf_abs,
+ adi_wmgpe_abs, adi_wmed3d_abs, adi_wmgpe_abs, adi_wmgpe_abs, adi_wmi_abs };
+
+static short* adi_key[] = { adi_wmi_key, adi_wmgpe_key, adi_cm2_key, adi_cm2_key, adi_wmi_key, adi_cm2_key,
+ adi_wmgpe_key, adi_wmed3d_key, adi_wmgpe_key, adi_wmgpe_key, adi_wmi_key };
+
+/*
+ * Hat to axis conversion arrays.
+ */
+
+static struct {
+ int x;
+ int y;
+} adi_hat_to_axis[] = {{ 0, 0}, { 0,-1}, { 1,-1}, { 1, 0}, { 1, 1}, { 0, 1}, {-1, 1}, {-1, 0}, {-1,-1}};
+
+/*
+ * Per-port information.
+ */
+
+struct adi {
+ struct input_dev *dev;
+ int length;
+ int ret;
+ int idx;
+ unsigned char id;
+ char buttons;
+ char axes10;
+ char axes8;
+ signed char pad;
+ char hats;
+ char *abs;
+ short *key;
+ char name[ADI_MAX_NAME_LENGTH];
+ char cname[ADI_MAX_CNAME_LENGTH];
+ char phys[ADI_MAX_PHYS_LENGTH];
+ unsigned char data[ADI_MAX_LENGTH];
+};
+
+struct adi_port {
+ struct gameport *gameport;
+ struct adi adi[2];
+ int bad;
+ int reads;
+};
+
+/*
+ * adi_read_packet() reads a Logitech ADI packet.
+ */
+
+static void adi_read_packet(struct adi_port *port)
+{
+ struct adi *adi = port->adi;
+ struct gameport *gameport = port->gameport;
+ unsigned char u, v, w, x, z;
+ int t[2], s[2], i;
+ unsigned long flags;
+
+ for (i = 0; i < 2; i++) {
+ adi[i].ret = -1;
+ t[i] = gameport_time(gameport, ADI_MAX_START);
+ s[i] = 0;
+ }
+
+ local_irq_save(flags);
+
+ gameport_trigger(gameport);
+ v = z = gameport_read(gameport);
+
+ do {
+ u = v;
+ w = u ^ (v = x = gameport_read(gameport));
+ for (i = 0; i < 2; i++, w >>= 2, x >>= 2) {
+ t[i]--;
+ if ((w & 0x30) && s[i]) {
+ if ((w & 0x30) < 0x30 && adi[i].ret < ADI_MAX_LENGTH && t[i] > 0) {
+ adi[i].data[++adi[i].ret] = w;
+ t[i] = gameport_time(gameport, ADI_MAX_STROBE);
+ } else t[i] = 0;
+ } else if (!(x & 0x30)) s[i] = 1;
+ }
+ } while (t[0] > 0 || t[1] > 0);
+
+ local_irq_restore(flags);
+
+ return;
+}
+
+/*
+ * adi_move_bits() detects a possible 2-stream mode, and moves
+ * the bits accordingly.
+ */
+
+static void adi_move_bits(struct adi_port *port, int length)
+{
+ int i;
+ struct adi *adi = port->adi;
+
+ adi[0].idx = adi[1].idx = 0;
+
+ if (adi[0].ret <= 0 || adi[1].ret <= 0) return;
+ if (adi[0].data[0] & 0x20 || ~adi[1].data[0] & 0x20) return;
+
+ for (i = 1; i <= adi[1].ret; i++)
+ adi[0].data[((length - 1) >> 1) + i + 1] = adi[1].data[i];
+
+ adi[0].ret += adi[1].ret;
+ adi[1].ret = -1;
+}
+
+/*
+ * adi_get_bits() gathers bits from the data packet.
+ */
+
+static inline int adi_get_bits(struct adi *adi, int count)
+{
+ int bits = 0;
+ int i;
+ if ((adi->idx += count) > adi->ret) return 0;
+ for (i = 0; i < count; i++)
+ bits |= ((adi->data[adi->idx - i] >> 5) & 1) << i;
+ return bits;
+}
+
+/*
+ * adi_decode() decodes Logitech joystick data into input events.
+ */
+
+static int adi_decode(struct adi *adi)
+{
+ struct input_dev *dev = adi->dev;
+ char *abs = adi->abs;
+ short *key = adi->key;
+ int i, t;
+
+ if (adi->ret < adi->length || adi->id != (adi_get_bits(adi, 4) | (adi_get_bits(adi, 4) << 4)))
+ return -1;
+
+ for (i = 0; i < adi->axes10; i++)
+ input_report_abs(dev, *abs++, adi_get_bits(adi, 10));
+
+ for (i = 0; i < adi->axes8; i++)
+ input_report_abs(dev, *abs++, adi_get_bits(adi, 8));
+
+ for (i = 0; i < adi->buttons && i < 63; i++) {
+ if (i == adi->pad) {
+ t = adi_get_bits(adi, 4);
+ input_report_abs(dev, *abs++, ((t >> 2) & 1) - ( t & 1));
+ input_report_abs(dev, *abs++, ((t >> 1) & 1) - ((t >> 3) & 1));
+ }
+ input_report_key(dev, *key++, adi_get_bits(adi, 1));
+ }
+
+ for (i = 0; i < adi->hats; i++) {
+ if ((t = adi_get_bits(adi, 4)) > 8) t = 0;
+ input_report_abs(dev, *abs++, adi_hat_to_axis[t].x);
+ input_report_abs(dev, *abs++, adi_hat_to_axis[t].y);
+ }
+
+ for (i = 63; i < adi->buttons; i++)
+ input_report_key(dev, *key++, adi_get_bits(adi, 1));
+
+ input_sync(dev);
+
+ return 0;
+}
+
+/*
+ * adi_read() reads the data packet and decodes it.
+ */
+
+static int adi_read(struct adi_port *port)
+{
+ int i;
+ int result = 0;
+
+ adi_read_packet(port);
+ adi_move_bits(port, port->adi[0].length);
+
+ for (i = 0; i < 2; i++)
+ if (port->adi[i].length)
+ result |= adi_decode(port->adi + i);
+
+ return result;
+}
+
+/*
+ * adi_poll() repeatedly polls the Logitech joysticks.
+ */
+
+static void adi_poll(struct gameport *gameport)
+{
+ struct adi_port *port = gameport_get_drvdata(gameport);
+
+ port->bad -= adi_read(port);
+ port->reads++;
+}
+
+/*
+ * adi_open() is a callback from the input open routine.
+ */
+
+static int adi_open(struct input_dev *dev)
+{
+ struct adi_port *port = input_get_drvdata(dev);
+
+ gameport_start_polling(port->gameport);
+ return 0;
+}
+
+/*
+ * adi_close() is a callback from the input close routine.
+ */
+
+static void adi_close(struct input_dev *dev)
+{
+ struct adi_port *port = input_get_drvdata(dev);
+
+ gameport_stop_polling(port->gameport);
+}
+
+/*
+ * adi_init_digital() sends a trigger & delay sequence
+ * to reset and initialize a Logitech joystick into digital mode.
+ */
+
+static void adi_init_digital(struct gameport *gameport)
+{
+ int seq[] = { 4, -2, -3, 10, -6, -11, -7, -9, 11, 0 };
+ int i;
+
+ for (i = 0; seq[i]; i++) {
+ gameport_trigger(gameport);
+ if (seq[i] > 0)
+ msleep(seq[i]);
+ if (seq[i] < 0) {
+ mdelay(-seq[i]);
+ udelay(-seq[i]*14); /* It looks like mdelay() is off by approx 1.4% */
+ }
+ }
+}
+
+static void adi_id_decode(struct adi *adi, struct adi_port *port)
+{
+ int i, t;
+
+ if (adi->ret < ADI_MIN_ID_LENGTH) /* Minimum ID packet length */
+ return;
+
+ if (adi->ret < (t = adi_get_bits(adi, 10))) {
+ printk(KERN_WARNING "adi: Short ID packet: reported: %d != read: %d\n", t, adi->ret);
+ return;
+ }
+
+ adi->id = adi_get_bits(adi, 4) | (adi_get_bits(adi, 4) << 4);
+
+ if ((t = adi_get_bits(adi, 4)) & ADI_FLAG_HAT) adi->hats++;
+
+ adi->length = adi_get_bits(adi, 10);
+
+ if (adi->length >= ADI_MAX_LENGTH || adi->length < ADI_MIN_LENGTH) {
+ printk(KERN_WARNING "adi: Bad data packet length (%d).\n", adi->length);
+ adi->length = 0;
+ return;
+ }
+
+ adi->axes8 = adi_get_bits(adi, 4);
+ adi->buttons = adi_get_bits(adi, 6);
+
+ if (adi_get_bits(adi, 6) != 8 && adi->hats) {
+ printk(KERN_WARNING "adi: Other than 8-dir POVs not supported yet.\n");
+ adi->length = 0;
+ return;
+ }
+
+ adi->buttons += adi_get_bits(adi, 6);
+ adi->hats += adi_get_bits(adi, 4);
+
+ i = adi_get_bits(adi, 4);
+
+ if (t & ADI_FLAG_10BIT) {
+ adi->axes10 = adi->axes8 - i;
+ adi->axes8 = i;
+ }
+
+ t = adi_get_bits(adi, 4);
+
+ for (i = 0; i < t; i++)
+ adi->cname[i] = adi_get_bits(adi, 8);
+ adi->cname[i] = 0;
+
+ t = 8 + adi->buttons + adi->axes10 * 10 + adi->axes8 * 8 + adi->hats * 4;
+ if (adi->length != t && adi->length != t + (t & 1)) {
+ printk(KERN_WARNING "adi: Expected length %d != data length %d\n", t, adi->length);
+ adi->length = 0;
+ return;
+ }
+
+ switch (adi->id) {
+ case ADI_ID_TPD:
+ adi->pad = 4;
+ adi->buttons -= 4;
+ break;
+ case ADI_ID_WGP:
+ adi->pad = 0;
+ adi->buttons -= 4;
+ break;
+ default:
+ adi->pad = -1;
+ break;
+ }
+}
+
+static int adi_init_input(struct adi *adi, struct adi_port *port, int half)
+{
+ struct input_dev *input_dev;
+ char buf[ADI_MAX_NAME_LENGTH];
+ int i, t;
+
+ adi->dev = input_dev = input_allocate_device();
+ if (!input_dev)
+ return -ENOMEM;
+
+ t = adi->id < ADI_ID_MAX ? adi->id : ADI_ID_MAX;
+
+ snprintf(buf, ADI_MAX_PHYS_LENGTH, adi_names[t], adi->id);
+ snprintf(adi->name, ADI_MAX_NAME_LENGTH, "Logitech %s [%s]", buf, adi->cname);
+ snprintf(adi->phys, ADI_MAX_PHYS_LENGTH, "%s/input%d", port->gameport->phys, half);
+
+ adi->abs = adi_abs[t];
+ adi->key = adi_key[t];
+
+ input_dev->name = adi->name;
+ input_dev->phys = adi->phys;
+ input_dev->id.bustype = BUS_GAMEPORT;
+ input_dev->id.vendor = GAMEPORT_ID_VENDOR_LOGITECH;
+ input_dev->id.product = adi->id;
+ input_dev->id.version = 0x0100;
+ input_dev->dev.parent = &port->gameport->dev;
+
+ input_set_drvdata(input_dev, port);
+
+ input_dev->open = adi_open;
+ input_dev->close = adi_close;
+
+ input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
+
+ for (i = 0; i < adi->axes10 + adi->axes8 + (adi->hats + (adi->pad != -1)) * 2; i++)
+ set_bit(adi->abs[i], input_dev->absbit);
+
+ for (i = 0; i < adi->buttons; i++)
+ set_bit(adi->key[i], input_dev->keybit);
+
+ return 0;
+}
+
+static void adi_init_center(struct adi *adi)
+{
+ int i, t, x;
+
+ if (!adi->length)
+ return;
+
+ for (i = 0; i < adi->axes10 + adi->axes8 + (adi->hats + (adi->pad != -1)) * 2; i++) {
+
+ t = adi->abs[i];
+ x = input_abs_get_val(adi->dev, t);
+
+ if (t == ABS_THROTTLE || t == ABS_RUDDER || adi->id == ADI_ID_WGPE)
+ x = i < adi->axes10 ? 512 : 128;
+
+ if (i < adi->axes10)
+ input_set_abs_params(adi->dev, t, 64, x * 2 - 64, 2, 16);
+ else if (i < adi->axes10 + adi->axes8)
+ input_set_abs_params(adi->dev, t, 48, x * 2 - 48, 1, 16);
+ else
+ input_set_abs_params(adi->dev, t, -1, 1, 0, 0);
+ }
+}
+
+/*
+ * adi_connect() probes for Logitech ADI joysticks.
+ */
+
+static int adi_connect(struct gameport *gameport, struct gameport_driver *drv)
+{
+ struct adi_port *port;
+ int i;
+ int err;
+
+ port = kzalloc(sizeof(struct adi_port), GFP_KERNEL);
+ if (!port)
+ return -ENOMEM;
+
+ port->gameport = gameport;
+
+ gameport_set_drvdata(gameport, port);
+
+ err = gameport_open(gameport, drv, GAMEPORT_MODE_RAW);
+ if (err)
+ goto fail1;
+
+ adi_init_digital(gameport);
+ adi_read_packet(port);
+
+ if (port->adi[0].ret >= ADI_MIN_LEN_LENGTH)
+ adi_move_bits(port, adi_get_bits(port->adi, 10));
+
+ for (i = 0; i < 2; i++) {
+ adi_id_decode(port->adi + i, port);
+
+ if (!port->adi[i].length)
+ continue;
+
+ err = adi_init_input(port->adi + i, port, i);
+ if (err)
+ goto fail2;
+ }
+
+ if (!port->adi[0].length && !port->adi[1].length) {
+ err = -ENODEV;
+ goto fail2;
+ }
+
+ gameport_set_poll_handler(gameport, adi_poll);
+ gameport_set_poll_interval(gameport, 20);
+
+ msleep(ADI_INIT_DELAY);
+ if (adi_read(port)) {
+ msleep(ADI_DATA_DELAY);
+ adi_read(port);
+ }
+
+ for (i = 0; i < 2; i++)
+ if (port->adi[i].length > 0) {
+ adi_init_center(port->adi + i);
+ err = input_register_device(port->adi[i].dev);
+ if (err)
+ goto fail3;
+ }
+
+ return 0;
+
+ fail3: while (--i >= 0) {
+ if (port->adi[i].length > 0) {
+ input_unregister_device(port->adi[i].dev);
+ port->adi[i].dev = NULL;
+ }
+ }
+ fail2: for (i = 0; i < 2; i++)
+ if (port->adi[i].dev)
+ input_free_device(port->adi[i].dev);
+ gameport_close(gameport);
+ fail1: gameport_set_drvdata(gameport, NULL);
+ kfree(port);
+ return err;
+}
+
+static void adi_disconnect(struct gameport *gameport)
+{
+ int i;
+ struct adi_port *port = gameport_get_drvdata(gameport);
+
+ for (i = 0; i < 2; i++)
+ if (port->adi[i].length > 0)
+ input_unregister_device(port->adi[i].dev);
+ gameport_close(gameport);
+ gameport_set_drvdata(gameport, NULL);
+ kfree(port);
+}
+
+/*
+ * The gameport device structure.
+ */
+
+static struct gameport_driver adi_drv = {
+ .driver = {
+ .name = "adi",
+ },
+ .description = DRIVER_DESC,
+ .connect = adi_connect,
+ .disconnect = adi_disconnect,
+};
+
+static int __init adi_init(void)
+{
+ return gameport_register_driver(&adi_drv);
+}
+
+static void __exit adi_exit(void)
+{
+ gameport_unregister_driver(&adi_drv);
+}
+
+module_init(adi_init);
+module_exit(adi_exit);
diff --git a/drivers/input/joystick/amijoy.c b/drivers/input/joystick/amijoy.c
new file mode 100644
index 0000000..0bc8620
--- /dev/null
+++ b/drivers/input/joystick/amijoy.c
@@ -0,0 +1,174 @@
+/*
+ * Copyright (c) 1998-2001 Vojtech Pavlik
+ */
+
+/*
+ * Driver for Amiga joysticks for Linux/m68k
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * Should you need to contact me, the author, you can do so either by
+ * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
+ * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
+ */
+
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/input.h>
+#include <linux/interrupt.h>
+#include <linux/mutex.h>
+
+#include <asm/system.h>
+#include <asm/amigahw.h>
+#include <asm/amigaints.h>
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
+MODULE_DESCRIPTION("Driver for Amiga joysticks");
+MODULE_LICENSE("GPL");
+
+static int amijoy[2] = { 0, 1 };
+module_param_array_named(map, amijoy, uint, NULL, 0);
+MODULE_PARM_DESC(map, "Map of attached joysticks in form of <a>,<b> (default is 0,1)");
+
+static int amijoy_used;
+static DEFINE_MUTEX(amijoy_mutex);
+static struct input_dev *amijoy_dev[2];
+static char *amijoy_phys[2] = { "amijoy/input0", "amijoy/input1" };
+
+static irqreturn_t amijoy_interrupt(int irq, void *dummy)
+{
+ int i, data = 0, button = 0;
+
+ for (i = 0; i < 2; i++)
+ if (amijoy[i]) {
+
+ switch (i) {
+ case 0: data = ~amiga_custom.joy0dat; button = (~ciaa.pra >> 6) & 1; break;
+ case 1: data = ~amiga_custom.joy1dat; button = (~ciaa.pra >> 7) & 1; break;
+ }
+
+ input_report_key(amijoy_dev[i], BTN_TRIGGER, button);
+
+ input_report_abs(amijoy_dev[i], ABS_X, ((data >> 1) & 1) - ((data >> 9) & 1));
+ data = ~(data ^ (data << 1));
+ input_report_abs(amijoy_dev[i], ABS_Y, ((data >> 1) & 1) - ((data >> 9) & 1));
+
+ input_sync(amijoy_dev[i]);
+ }
+ return IRQ_HANDLED;
+}
+
+static int amijoy_open(struct input_dev *dev)
+{
+ int err;
+
+ err = mutex_lock_interruptible(&amijoy_mutex);
+ if (err)
+ return err;
+
+ if (!amijoy_used && request_irq(IRQ_AMIGA_VERTB, amijoy_interrupt, 0, "amijoy", amijoy_interrupt)) {
+ printk(KERN_ERR "amijoy.c: Can't allocate irq %d\n", IRQ_AMIGA_VERTB);
+ err = -EBUSY;
+ goto out;
+ }
+
+ amijoy_used++;
+out:
+ mutex_unlock(&amijoy_mutex);
+ return err;
+}
+
+static void amijoy_close(struct input_dev *dev)
+{
+ mutex_lock(&amijoy_mutex);
+ if (!--amijoy_used)
+ free_irq(IRQ_AMIGA_VERTB, amijoy_interrupt);
+ mutex_unlock(&amijoy_mutex);
+}
+
+static int __init amijoy_init(void)
+{
+ int i, j;
+ int err;
+
+ for (i = 0; i < 2; i++) {
+ if (!amijoy[i])
+ continue;
+
+ amijoy_dev[i] = input_allocate_device();
+ if (!amijoy_dev[i]) {
+ err = -ENOMEM;
+ goto fail;
+ }
+
+ if (!request_mem_region(CUSTOM_PHYSADDR + 10 + i * 2, 2, "amijoy [Denise]")) {
+ input_free_device(amijoy_dev[i]);
+ err = -EBUSY;
+ goto fail;
+ }
+
+ amijoy_dev[i]->name = "Amiga joystick";
+ amijoy_dev[i]->phys = amijoy_phys[i];
+ amijoy_dev[i]->id.bustype = BUS_AMIGA;
+ amijoy_dev[i]->id.vendor = 0x0001;
+ amijoy_dev[i]->id.product = 0x0003;
+ amijoy_dev[i]->id.version = 0x0100;
+
+ amijoy_dev[i]->open = amijoy_open;
+ amijoy_dev[i]->close = amijoy_close;
+
+ amijoy_dev[i]->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
+ amijoy_dev[i]->absbit[0] = BIT_MASK(ABS_X) | BIT_MASK(ABS_Y);
+ amijoy_dev[i]->keybit[BIT_WORD(BTN_LEFT)] = BIT_MASK(BTN_LEFT) |
+ BIT_MASK(BTN_MIDDLE) | BIT_MASK(BTN_RIGHT);
+ for (j = 0; j < 2; j++) {
+ input_set_abs_params(amijoy_dev[i], ABS_X + j,
+ -1, 1, 0, 0);
+ }
+
+ err = input_register_device(amijoy_dev[i]);
+ if (err) {
+ input_free_device(amijoy_dev[i]);
+ goto fail;
+ }
+ }
+ return 0;
+
+ fail: while (--i >= 0)
+ if (amijoy[i]) {
+ input_unregister_device(amijoy_dev[i]);
+ release_mem_region(CUSTOM_PHYSADDR + 10 + i * 2, 2);
+ }
+ return err;
+}
+
+static void __exit amijoy_exit(void)
+{
+ int i;
+
+ for (i = 0; i < 2; i++)
+ if (amijoy[i]) {
+ input_unregister_device(amijoy_dev[i]);
+ release_mem_region(CUSTOM_PHYSADDR + 10 + i * 2, 2);
+ }
+}
+
+module_init(amijoy_init);
+module_exit(amijoy_exit);
diff --git a/drivers/input/joystick/analog.c b/drivers/input/joystick/analog.c
new file mode 100644
index 0000000..358cd7e
--- /dev/null
+++ b/drivers/input/joystick/analog.c
@@ -0,0 +1,773 @@
+/*
+ * Copyright (c) 1996-2001 Vojtech Pavlik
+ */
+
+/*
+ * Analog joystick and gamepad driver for Linux
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * Should you need to contact me, the author, you can do so either by
+ * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
+ * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
+ */
+
+#include <linux/delay.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/bitops.h>
+#include <linux/init.h>
+#include <linux/input.h>
+#include <linux/gameport.h>
+#include <linux/jiffies.h>
+#include <linux/timex.h>
+
+#define DRIVER_DESC "Analog joystick and gamepad driver"
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+/*
+ * Option parsing.
+ */
+
+#define ANALOG_PORTS 16
+
+static char *js[ANALOG_PORTS];
+static unsigned int js_nargs;
+static int analog_options[ANALOG_PORTS];
+module_param_array_named(map, js, charp, &js_nargs, 0);
+MODULE_PARM_DESC(map, "Describes analog joysticks type/capabilities");
+
+/*
+ * Times, feature definitions.
+ */
+
+#define ANALOG_RUDDER 0x00004
+#define ANALOG_THROTTLE 0x00008
+#define ANALOG_AXES_STD 0x0000f
+#define ANALOG_BTNS_STD 0x000f0
+
+#define ANALOG_BTNS_CHF 0x00100
+#define ANALOG_HAT1_CHF 0x00200
+#define ANALOG_HAT2_CHF 0x00400
+#define ANALOG_HAT_FCS 0x00800
+#define ANALOG_HATS_ALL 0x00e00
+#define ANALOG_BTN_TL 0x01000
+#define ANALOG_BTN_TR 0x02000
+#define ANALOG_BTN_TL2 0x04000
+#define ANALOG_BTN_TR2 0x08000
+#define ANALOG_BTNS_TLR 0x03000
+#define ANALOG_BTNS_TLR2 0x0c000
+#define ANALOG_BTNS_GAMEPAD 0x0f000
+
+#define ANALOG_HBTN_CHF 0x10000
+#define ANALOG_ANY_CHF 0x10700
+#define ANALOG_SAITEK 0x20000
+#define ANALOG_EXTENSIONS 0x7ff00
+#define ANALOG_GAMEPAD 0x80000
+
+#define ANALOG_MAX_TIME 3 /* 3 ms */
+#define ANALOG_LOOP_TIME 2000 /* 2 * loop */
+#define ANALOG_SAITEK_DELAY 200 /* 200 us */
+#define ANALOG_SAITEK_TIME 2000 /* 2000 us */
+#define ANALOG_AXIS_TIME 2 /* 2 * refresh */
+#define ANALOG_INIT_RETRIES 8 /* 8 times */
+#define ANALOG_FUZZ_BITS 2 /* 2 bit more */
+#define ANALOG_FUZZ_MAGIC 36 /* 36 u*ms/loop */
+
+#define ANALOG_MAX_NAME_LENGTH 128
+#define ANALOG_MAX_PHYS_LENGTH 32
+
+static short analog_axes[] = { ABS_X, ABS_Y, ABS_RUDDER, ABS_THROTTLE };
+static short analog_hats[] = { ABS_HAT0X, ABS_HAT0Y, ABS_HAT1X, ABS_HAT1Y, ABS_HAT2X, ABS_HAT2Y };
+static short analog_pads[] = { BTN_Y, BTN_Z, BTN_TL, BTN_TR };
+static short analog_exts[] = { ANALOG_HAT1_CHF, ANALOG_HAT2_CHF, ANALOG_HAT_FCS };
+static short analog_pad_btn[] = { BTN_A, BTN_B, BTN_C, BTN_X, BTN_TL2, BTN_TR2, BTN_SELECT, BTN_START, BTN_MODE, BTN_BASE };
+static short analog_joy_btn[] = { BTN_TRIGGER, BTN_THUMB, BTN_TOP, BTN_TOP2, BTN_BASE, BTN_BASE2,
+ BTN_BASE3, BTN_BASE4, BTN_BASE5, BTN_BASE6 };
+
+static unsigned char analog_chf[] = { 0xf, 0x0, 0x1, 0x9, 0x2, 0x4, 0xc, 0x8, 0x3, 0x5, 0xb, 0x7, 0xd, 0xe, 0xa, 0x6 };
+
+struct analog {
+ struct input_dev *dev;
+ int mask;
+ short *buttons;
+ char name[ANALOG_MAX_NAME_LENGTH];
+ char phys[ANALOG_MAX_PHYS_LENGTH];
+};
+
+struct analog_port {
+ struct gameport *gameport;
+ struct analog analog[2];
+ unsigned char mask;
+ char saitek;
+ char cooked;
+ int bads;
+ int reads;
+ int speed;
+ int loop;
+ int fuzz;
+ int axes[4];
+ int buttons;
+ int initial[4];
+ int axtime;
+};
+
+/*
+ * Time macros.
+ */
+
+#ifdef __i386__
+
+#include <linux/i8253.h>
+
+#define GET_TIME(x) do { if (cpu_has_tsc) rdtscl(x); else x = get_time_pit(); } while (0)
+#define DELTA(x,y) (cpu_has_tsc ? ((y) - (x)) : ((x) - (y) + ((x) < (y) ? PIT_TICK_RATE / HZ : 0)))
+#define TIME_NAME (cpu_has_tsc?"TSC":"PIT")
+static unsigned int get_time_pit(void)
+{
+ unsigned long flags;
+ unsigned int count;
+
+ raw_spin_lock_irqsave(&i8253_lock, flags);
+ outb_p(0x00, 0x43);
+ count = inb_p(0x40);
+ count |= inb_p(0x40) << 8;
+ raw_spin_unlock_irqrestore(&i8253_lock, flags);
+
+ return count;
+}
+#elif defined(__x86_64__)
+#define GET_TIME(x) rdtscl(x)
+#define DELTA(x,y) ((y)-(x))
+#define TIME_NAME "TSC"
+#elif defined(__alpha__)
+#define GET_TIME(x) do { x = get_cycles(); } while (0)
+#define DELTA(x,y) ((y)-(x))
+#define TIME_NAME "PCC"
+#elif defined(CONFIG_MN10300)
+#define GET_TIME(x) do { x = get_cycles(); } while (0)
+#define DELTA(x, y) ((x) - (y))
+#define TIME_NAME "TSC"
+#else
+#define FAKE_TIME
+static unsigned long analog_faketime = 0;
+#define GET_TIME(x) do { x = analog_faketime++; } while(0)
+#define DELTA(x,y) ((y)-(x))
+#define TIME_NAME "Unreliable"
+#warning Precise timer not defined for this architecture.
+#endif
+
+/*
+ * analog_decode() decodes analog joystick data and reports input events.
+ */
+
+static void analog_decode(struct analog *analog, int *axes, int *initial, int buttons)
+{
+ struct input_dev *dev = analog->dev;
+ int i, j;
+
+ if (analog->mask & ANALOG_HAT_FCS)
+ for (i = 0; i < 4; i++)
+ if (axes[3] < ((initial[3] * ((i << 1) + 1)) >> 3)) {
+ buttons |= 1 << (i + 14);
+ break;
+ }
+
+ for (i = j = 0; i < 6; i++)
+ if (analog->mask & (0x10 << i))
+ input_report_key(dev, analog->buttons[j++], (buttons >> i) & 1);
+
+ if (analog->mask & ANALOG_HBTN_CHF)
+ for (i = 0; i < 4; i++)
+ input_report_key(dev, analog->buttons[j++], (buttons >> (i + 10)) & 1);
+
+ if (analog->mask & ANALOG_BTN_TL)
+ input_report_key(dev, analog_pads[0], axes[2] < (initial[2] >> 1));
+ if (analog->mask & ANALOG_BTN_TR)
+ input_report_key(dev, analog_pads[1], axes[3] < (initial[3] >> 1));
+ if (analog->mask & ANALOG_BTN_TL2)
+ input_report_key(dev, analog_pads[2], axes[2] > (initial[2] + (initial[2] >> 1)));
+ if (analog->mask & ANALOG_BTN_TR2)
+ input_report_key(dev, analog_pads[3], axes[3] > (initial[3] + (initial[3] >> 1)));
+
+ for (i = j = 0; i < 4; i++)
+ if (analog->mask & (1 << i))
+ input_report_abs(dev, analog_axes[j++], axes[i]);
+
+ for (i = j = 0; i < 3; i++)
+ if (analog->mask & analog_exts[i]) {
+ input_report_abs(dev, analog_hats[j++],
+ ((buttons >> ((i << 2) + 7)) & 1) - ((buttons >> ((i << 2) + 9)) & 1));
+ input_report_abs(dev, analog_hats[j++],
+ ((buttons >> ((i << 2) + 8)) & 1) - ((buttons >> ((i << 2) + 6)) & 1));
+ }
+
+ input_sync(dev);
+}
+
+/*
+ * analog_cooked_read() reads analog joystick data.
+ */
+
+static int analog_cooked_read(struct analog_port *port)
+{
+ struct gameport *gameport = port->gameport;
+ unsigned int time[4], start, loop, now, loopout, timeout;
+ unsigned char data[4], this, last;
+ unsigned long flags;
+ int i, j;
+
+ loopout = (ANALOG_LOOP_TIME * port->loop) / 1000;
+ timeout = ANALOG_MAX_TIME * port->speed;
+
+ local_irq_save(flags);
+ gameport_trigger(gameport);
+ GET_TIME(now);
+ local_irq_restore(flags);
+
+ start = now;
+ this = port->mask;
+ i = 0;
+
+ do {
+ loop = now;
+ last = this;
+
+ local_irq_disable();
+ this = gameport_read(gameport) & port->mask;
+ GET_TIME(now);
+ local_irq_restore(flags);
+
+ if ((last ^ this) && (DELTA(loop, now) < loopout)) {
+ data[i] = last ^ this;
+ time[i] = now;
+ i++;
+ }
+
+ } while (this && (i < 4) && (DELTA(start, now) < timeout));
+
+ this <<= 4;
+
+ for (--i; i >= 0; i--) {
+ this |= data[i];
+ for (j = 0; j < 4; j++)
+ if (data[i] & (1 << j))
+ port->axes[j] = (DELTA(start, time[i]) << ANALOG_FUZZ_BITS) / port->loop;
+ }
+
+ return -(this != port->mask);
+}
+
+static int analog_button_read(struct analog_port *port, char saitek, char chf)
+{
+ unsigned char u;
+ int t = 1, i = 0;
+ int strobe = gameport_time(port->gameport, ANALOG_SAITEK_TIME);
+
+ u = gameport_read(port->gameport);
+
+ if (!chf) {
+ port->buttons = (~u >> 4) & 0xf;
+ return 0;
+ }
+
+ port->buttons = 0;
+
+ while ((~u & 0xf0) && (i < 16) && t) {
+ port->buttons |= 1 << analog_chf[(~u >> 4) & 0xf];
+ if (!saitek) return 0;
+ udelay(ANALOG_SAITEK_DELAY);
+ t = strobe;
+ gameport_trigger(port->gameport);
+ while (((u = gameport_read(port->gameport)) & port->mask) && t) t--;
+ i++;
+ }
+
+ return -(!t || (i == 16));
+}
+
+/*
+ * analog_poll() repeatedly polls the Analog joysticks.
+ */
+
+static void analog_poll(struct gameport *gameport)
+{
+ struct analog_port *port = gameport_get_drvdata(gameport);
+ int i;
+
+ char saitek = !!(port->analog[0].mask & ANALOG_SAITEK);
+ char chf = !!(port->analog[0].mask & ANALOG_ANY_CHF);
+
+ if (port->cooked) {
+ port->bads -= gameport_cooked_read(port->gameport, port->axes, &port->buttons);
+ if (chf)
+ port->buttons = port->buttons ? (1 << analog_chf[port->buttons]) : 0;
+ port->reads++;
+ } else {
+ if (!port->axtime--) {
+ port->bads -= analog_cooked_read(port);
+ port->bads -= analog_button_read(port, saitek, chf);
+ port->reads++;
+ port->axtime = ANALOG_AXIS_TIME - 1;
+ } else {
+ if (!saitek)
+ analog_button_read(port, saitek, chf);
+ }
+ }
+
+ for (i = 0; i < 2; i++)
+ if (port->analog[i].mask)
+ analog_decode(port->analog + i, port->axes, port->initial, port->buttons);
+}
+
+/*
+ * analog_open() is a callback from the input open routine.
+ */
+
+static int analog_open(struct input_dev *dev)
+{
+ struct analog_port *port = input_get_drvdata(dev);
+
+ gameport_start_polling(port->gameport);
+ return 0;
+}
+
+/*
+ * analog_close() is a callback from the input close routine.
+ */
+
+static void analog_close(struct input_dev *dev)
+{
+ struct analog_port *port = input_get_drvdata(dev);
+
+ gameport_stop_polling(port->gameport);
+}
+
+/*
+ * analog_calibrate_timer() calibrates the timer and computes loop
+ * and timeout values for a joystick port.
+ */
+
+static void analog_calibrate_timer(struct analog_port *port)
+{
+ struct gameport *gameport = port->gameport;
+ unsigned int i, t, tx, t1, t2, t3;
+ unsigned long flags;
+
+ local_irq_save(flags);
+ GET_TIME(t1);
+#ifdef FAKE_TIME
+ analog_faketime += 830;
+#endif
+ mdelay(1);
+ GET_TIME(t2);
+ GET_TIME(t3);
+ local_irq_restore(flags);
+
+ port->speed = DELTA(t1, t2) - DELTA(t2, t3);
+
+ tx = ~0;
+
+ for (i = 0; i < 50; i++) {
+ local_irq_save(flags);
+ GET_TIME(t1);
+ for (t = 0; t < 50; t++) { gameport_read(gameport); GET_TIME(t2); }
+ GET_TIME(t3);
+ local_irq_restore(flags);
+ udelay(i);
+ t = DELTA(t1, t2) - DELTA(t2, t3);
+ if (t < tx) tx = t;
+ }
+
+ port->loop = tx / 50;
+}
+
+/*
+ * analog_name() constructs a name for an analog joystick.
+ */
+
+static void analog_name(struct analog *analog)
+{
+ snprintf(analog->name, sizeof(analog->name), "Analog %d-axis %d-button",
+ hweight8(analog->mask & ANALOG_AXES_STD),
+ hweight8(analog->mask & ANALOG_BTNS_STD) + !!(analog->mask & ANALOG_BTNS_CHF) * 2 +
+ hweight16(analog->mask & ANALOG_BTNS_GAMEPAD) + !!(analog->mask & ANALOG_HBTN_CHF) * 4);
+
+ if (analog->mask & ANALOG_HATS_ALL)
+ snprintf(analog->name, sizeof(analog->name), "%s %d-hat",
+ analog->name, hweight16(analog->mask & ANALOG_HATS_ALL));
+
+ if (analog->mask & ANALOG_HAT_FCS)
+ strlcat(analog->name, " FCS", sizeof(analog->name));
+ if (analog->mask & ANALOG_ANY_CHF)
+ strlcat(analog->name, (analog->mask & ANALOG_SAITEK) ? " Saitek" : " CHF",
+ sizeof(analog->name));
+
+ strlcat(analog->name, (analog->mask & ANALOG_GAMEPAD) ? " gamepad": " joystick",
+ sizeof(analog->name));
+}
+
+/*
+ * analog_init_device()
+ */
+
+static int analog_init_device(struct analog_port *port, struct analog *analog, int index)
+{
+ struct input_dev *input_dev;
+ int i, j, t, v, w, x, y, z;
+ int error;
+
+ analog_name(analog);
+ snprintf(analog->phys, sizeof(analog->phys),
+ "%s/input%d", port->gameport->phys, index);
+ analog->buttons = (analog->mask & ANALOG_GAMEPAD) ? analog_pad_btn : analog_joy_btn;
+
+ analog->dev = input_dev = input_allocate_device();
+ if (!input_dev)
+ return -ENOMEM;
+
+ input_dev->name = analog->name;
+ input_dev->phys = analog->phys;
+ input_dev->id.bustype = BUS_GAMEPORT;
+ input_dev->id.vendor = GAMEPORT_ID_VENDOR_ANALOG;
+ input_dev->id.product = analog->mask >> 4;
+ input_dev->id.version = 0x0100;
+ input_dev->dev.parent = &port->gameport->dev;
+
+ input_set_drvdata(input_dev, port);
+
+ input_dev->open = analog_open;
+ input_dev->close = analog_close;
+
+ input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
+
+ for (i = j = 0; i < 4; i++)
+ if (analog->mask & (1 << i)) {
+
+ t = analog_axes[j];
+ x = port->axes[i];
+ y = (port->axes[0] + port->axes[1]) >> 1;
+ z = y - port->axes[i];
+ z = z > 0 ? z : -z;
+ v = (x >> 3);
+ w = (x >> 3);
+
+ if ((i == 2 || i == 3) && (j == 2 || j == 3) && (z > (y >> 3)))
+ x = y;
+
+ if (analog->mask & ANALOG_SAITEK) {
+ if (i == 2) x = port->axes[i];
+ v = x - (x >> 2);
+ w = (x >> 4);
+ }
+
+ input_set_abs_params(input_dev, t, v, (x << 1) - v, port->fuzz, w);
+ j++;
+ }
+
+ for (i = j = 0; i < 3; i++)
+ if (analog->mask & analog_exts[i])
+ for (x = 0; x < 2; x++) {
+ t = analog_hats[j++];
+ input_set_abs_params(input_dev, t, -1, 1, 0, 0);
+ }
+
+ for (i = j = 0; i < 4; i++)
+ if (analog->mask & (0x10 << i))
+ set_bit(analog->buttons[j++], input_dev->keybit);
+
+ if (analog->mask & ANALOG_BTNS_CHF)
+ for (i = 0; i < 2; i++)
+ set_bit(analog->buttons[j++], input_dev->keybit);
+
+ if (analog->mask & ANALOG_HBTN_CHF)
+ for (i = 0; i < 4; i++)
+ set_bit(analog->buttons[j++], input_dev->keybit);
+
+ for (i = 0; i < 4; i++)
+ if (analog->mask & (ANALOG_BTN_TL << i))
+ set_bit(analog_pads[i], input_dev->keybit);
+
+ analog_decode(analog, port->axes, port->initial, port->buttons);
+
+ error = input_register_device(analog->dev);
+ if (error) {
+ input_free_device(analog->dev);
+ return error;
+ }
+
+ return 0;
+}
+
+/*
+ * analog_init_devices() sets up device-specific values and registers the input devices.
+ */
+
+static int analog_init_masks(struct analog_port *port)
+{
+ int i;
+ struct analog *analog = port->analog;
+ int max[4];
+
+ if (!port->mask)
+ return -1;
+
+ if ((port->mask & 3) != 3 && port->mask != 0xc) {
+ printk(KERN_WARNING "analog.c: Unknown joystick device found "
+ "(data=%#x, %s), probably not analog joystick.\n",
+ port->mask, port->gameport->phys);
+ return -1;
+ }
+
+
+ i = analog_options[0]; /* FIXME !!! - need to specify options for different ports */
+
+ analog[0].mask = i & 0xfffff;
+
+ analog[0].mask &= ~(ANALOG_AXES_STD | ANALOG_HAT_FCS | ANALOG_BTNS_GAMEPAD)
+ | port->mask | ((port->mask << 8) & ANALOG_HAT_FCS)
+ | ((port->mask << 10) & ANALOG_BTNS_TLR) | ((port->mask << 12) & ANALOG_BTNS_TLR2);
+
+ analog[0].mask &= ~(ANALOG_HAT2_CHF)
+ | ((analog[0].mask & ANALOG_HBTN_CHF) ? 0 : ANALOG_HAT2_CHF);
+
+ analog[0].mask &= ~(ANALOG_THROTTLE | ANALOG_BTN_TR | ANALOG_BTN_TR2)
+ | ((~analog[0].mask & ANALOG_HAT_FCS) >> 8)
+ | ((~analog[0].mask & ANALOG_HAT_FCS) << 2)
+ | ((~analog[0].mask & ANALOG_HAT_FCS) << 4);
+
+ analog[0].mask &= ~(ANALOG_THROTTLE | ANALOG_RUDDER)
+ | (((~analog[0].mask & ANALOG_BTNS_TLR ) >> 10)
+ & ((~analog[0].mask & ANALOG_BTNS_TLR2) >> 12));
+
+ analog[1].mask = ((i >> 20) & 0xff) | ((i >> 12) & 0xf0000);
+
+ analog[1].mask &= (analog[0].mask & ANALOG_EXTENSIONS) ? ANALOG_GAMEPAD
+ : (((ANALOG_BTNS_STD | port->mask) & ~analog[0].mask) | ANALOG_GAMEPAD);
+
+ if (port->cooked) {
+
+ for (i = 0; i < 4; i++) max[i] = port->axes[i] << 1;
+
+ if ((analog[0].mask & 0x7) == 0x7) max[2] = (max[0] + max[1]) >> 1;
+ if ((analog[0].mask & 0xb) == 0xb) max[3] = (max[0] + max[1]) >> 1;
+ if ((analog[0].mask & ANALOG_BTN_TL) && !(analog[0].mask & ANALOG_BTN_TL2)) max[2] >>= 1;
+ if ((analog[0].mask & ANALOG_BTN_TR) && !(analog[0].mask & ANALOG_BTN_TR2)) max[3] >>= 1;
+ if ((analog[0].mask & ANALOG_HAT_FCS)) max[3] >>= 1;
+
+ gameport_calibrate(port->gameport, port->axes, max);
+ }
+
+ for (i = 0; i < 4; i++)
+ port->initial[i] = port->axes[i];
+
+ return -!(analog[0].mask || analog[1].mask);
+}
+
+static int analog_init_port(struct gameport *gameport, struct gameport_driver *drv, struct analog_port *port)
+{
+ int i, t, u, v;
+
+ port->gameport = gameport;
+
+ gameport_set_drvdata(gameport, port);
+
+ if (!gameport_open(gameport, drv, GAMEPORT_MODE_RAW)) {
+
+ analog_calibrate_timer(port);
+
+ gameport_trigger(gameport);
+ t = gameport_read(gameport);
+ msleep(ANALOG_MAX_TIME);
+ port->mask = (gameport_read(gameport) ^ t) & t & 0xf;
+ port->fuzz = (port->speed * ANALOG_FUZZ_MAGIC) / port->loop / 1000 + ANALOG_FUZZ_BITS;
+
+ for (i = 0; i < ANALOG_INIT_RETRIES; i++) {
+ if (!analog_cooked_read(port))
+ break;
+ msleep(ANALOG_MAX_TIME);
+ }
+
+ u = v = 0;
+
+ msleep(ANALOG_MAX_TIME);
+ t = gameport_time(gameport, ANALOG_MAX_TIME * 1000);
+ gameport_trigger(gameport);
+ while ((gameport_read(port->gameport) & port->mask) && (u < t))
+ u++;
+ udelay(ANALOG_SAITEK_DELAY);
+ t = gameport_time(gameport, ANALOG_SAITEK_TIME);
+ gameport_trigger(gameport);
+ while ((gameport_read(port->gameport) & port->mask) && (v < t))
+ v++;
+
+ if (v < (u >> 1)) { /* FIXME - more than one port */
+ analog_options[0] |= /* FIXME - more than one port */
+ ANALOG_SAITEK | ANALOG_BTNS_CHF | ANALOG_HBTN_CHF | ANALOG_HAT1_CHF;
+ return 0;
+ }
+
+ gameport_close(gameport);
+ }
+
+ if (!gameport_open(gameport, drv, GAMEPORT_MODE_COOKED)) {
+
+ for (i = 0; i < ANALOG_INIT_RETRIES; i++)
+ if (!gameport_cooked_read(gameport, port->axes, &port->buttons))
+ break;
+ for (i = 0; i < 4; i++)
+ if (port->axes[i] != -1)
+ port->mask |= 1 << i;
+
+ port->fuzz = gameport->fuzz;
+ port->cooked = 1;
+ return 0;
+ }
+
+ return gameport_open(gameport, drv, GAMEPORT_MODE_RAW);
+}
+
+static int analog_connect(struct gameport *gameport, struct gameport_driver *drv)
+{
+ struct analog_port *port;
+ int i;
+ int err;
+
+ if (!(port = kzalloc(sizeof(struct analog_port), GFP_KERNEL)))
+ return - ENOMEM;
+
+ err = analog_init_port(gameport, drv, port);
+ if (err)
+ goto fail1;
+
+ err = analog_init_masks(port);
+ if (err)
+ goto fail2;
+
+ gameport_set_poll_handler(gameport, analog_poll);
+ gameport_set_poll_interval(gameport, 10);
+
+ for (i = 0; i < 2; i++)
+ if (port->analog[i].mask) {
+ err = analog_init_device(port, port->analog + i, i);
+ if (err)
+ goto fail3;
+ }
+
+ return 0;
+
+ fail3: while (--i >= 0)
+ if (port->analog[i].mask)
+ input_unregister_device(port->analog[i].dev);
+ fail2: gameport_close(gameport);
+ fail1: gameport_set_drvdata(gameport, NULL);
+ kfree(port);
+ return err;
+}
+
+static void analog_disconnect(struct gameport *gameport)
+{
+ struct analog_port *port = gameport_get_drvdata(gameport);
+ int i;
+
+ for (i = 0; i < 2; i++)
+ if (port->analog[i].mask)
+ input_unregister_device(port->analog[i].dev);
+ gameport_close(gameport);
+ gameport_set_drvdata(gameport, NULL);
+ printk(KERN_INFO "analog.c: %d out of %d reads (%d%%) on %s failed\n",
+ port->bads, port->reads, port->reads ? (port->bads * 100 / port->reads) : 0,
+ port->gameport->phys);
+ kfree(port);
+}
+
+struct analog_types {
+ char *name;
+ int value;
+};
+
+static struct analog_types analog_types[] = {
+ { "none", 0x00000000 },
+ { "auto", 0x000000ff },
+ { "2btn", 0x0000003f },
+ { "y-joy", 0x0cc00033 },
+ { "y-pad", 0x8cc80033 },
+ { "fcs", 0x000008f7 },
+ { "chf", 0x000002ff },
+ { "fullchf", 0x000007ff },
+ { "gamepad", 0x000830f3 },
+ { "gamepad8", 0x0008f0f3 },
+ { NULL, 0 }
+};
+
+static void analog_parse_options(void)
+{
+ int i, j;
+ char *end;
+
+ for (i = 0; i < js_nargs; i++) {
+
+ for (j = 0; analog_types[j].name; j++)
+ if (!strcmp(analog_types[j].name, js[i])) {
+ analog_options[i] = analog_types[j].value;
+ break;
+ }
+ if (analog_types[j].name) continue;
+
+ analog_options[i] = simple_strtoul(js[i], &end, 0);
+ if (end != js[i]) continue;
+
+ analog_options[i] = 0xff;
+ if (!strlen(js[i])) continue;
+
+ printk(KERN_WARNING "analog.c: Bad config for port %d - \"%s\"\n", i, js[i]);
+ }
+
+ for (; i < ANALOG_PORTS; i++)
+ analog_options[i] = 0xff;
+}
+
+/*
+ * The gameport device structure.
+ */
+
+static struct gameport_driver analog_drv = {
+ .driver = {
+ .name = "analog",
+ },
+ .description = DRIVER_DESC,
+ .connect = analog_connect,
+ .disconnect = analog_disconnect,
+};
+
+static int __init analog_init(void)
+{
+ analog_parse_options();
+ return gameport_register_driver(&analog_drv);
+}
+
+static void __exit analog_exit(void)
+{
+ gameport_unregister_driver(&analog_drv);
+}
+
+module_init(analog_init);
+module_exit(analog_exit);
diff --git a/drivers/input/joystick/as5011.c b/drivers/input/joystick/as5011.c
new file mode 100644
index 0000000..6d6e741
--- /dev/null
+++ b/drivers/input/joystick/as5011.c
@@ -0,0 +1,368 @@
+/*
+ * Copyright (c) 2010, 2011 Fabien Marteau <fabien.marteau@armadeus.com>
+ * Sponsored by ARMadeus Systems
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * Driver for Austria Microsystems joysticks AS5011
+ *
+ * TODO:
+ * - Power on the chip when open() and power down when close()
+ * - Manage power mode
+ */
+
+#include <linux/i2c.h>
+#include <linux/interrupt.h>
+#include <linux/input.h>
+#include <linux/gpio.h>
+#include <linux/delay.h>
+#include <linux/input/as5011.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+
+#define DRIVER_DESC "Driver for Austria Microsystems AS5011 joystick"
+#define MODULE_DEVICE_ALIAS "as5011"
+
+MODULE_AUTHOR("Fabien Marteau <fabien.marteau@armadeus.com>");
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+/* registers */
+#define AS5011_CTRL1 0x76
+#define AS5011_CTRL2 0x75
+#define AS5011_XP 0x43
+#define AS5011_XN 0x44
+#define AS5011_YP 0x53
+#define AS5011_YN 0x54
+#define AS5011_X_REG 0x41
+#define AS5011_Y_REG 0x42
+#define AS5011_X_RES_INT 0x51
+#define AS5011_Y_RES_INT 0x52
+
+/* CTRL1 bits */
+#define AS5011_CTRL1_LP_PULSED 0x80
+#define AS5011_CTRL1_LP_ACTIVE 0x40
+#define AS5011_CTRL1_LP_CONTINUE 0x20
+#define AS5011_CTRL1_INT_WUP_EN 0x10
+#define AS5011_CTRL1_INT_ACT_EN 0x08
+#define AS5011_CTRL1_EXT_CLK_EN 0x04
+#define AS5011_CTRL1_SOFT_RST 0x02
+#define AS5011_CTRL1_DATA_VALID 0x01
+
+/* CTRL2 bits */
+#define AS5011_CTRL2_EXT_SAMPLE_EN 0x08
+#define AS5011_CTRL2_RC_BIAS_ON 0x04
+#define AS5011_CTRL2_INV_SPINNING 0x02
+
+#define AS5011_MAX_AXIS 80
+#define AS5011_MIN_AXIS (-80)
+#define AS5011_FUZZ 8
+#define AS5011_FLAT 40
+
+struct as5011_device {
+ struct input_dev *input_dev;
+ struct i2c_client *i2c_client;
+ unsigned int button_gpio;
+ unsigned int button_irq;
+ unsigned int axis_irq;
+};
+
+static int as5011_i2c_write(struct i2c_client *client,
+ uint8_t aregaddr,
+ uint8_t avalue)
+{
+ uint8_t data[2] = { aregaddr, avalue };
+ struct i2c_msg msg = {
+ client->addr, I2C_M_IGNORE_NAK, 2, (uint8_t *)data
+ };
+ int error;
+
+ error = i2c_transfer(client->adapter, &msg, 1);
+ return error < 0 ? error : 0;
+}
+
+static int as5011_i2c_read(struct i2c_client *client,
+ uint8_t aregaddr, signed char *value)
+{
+ uint8_t data[2] = { aregaddr };
+ struct i2c_msg msg_set[2] = {
+ { client->addr, I2C_M_REV_DIR_ADDR, 1, (uint8_t *)data },
+ { client->addr, I2C_M_RD | I2C_M_NOSTART, 1, (uint8_t *)data }
+ };
+ int error;
+
+ error = i2c_transfer(client->adapter, msg_set, 2);
+ if (error < 0)
+ return error;
+
+ *value = data[0] & 0x80 ? -1 * (1 + ~data[0]) : data[0];
+ return 0;
+}
+
+static irqreturn_t as5011_button_interrupt(int irq, void *dev_id)
+{
+ struct as5011_device *as5011 = dev_id;
+ int val = gpio_get_value_cansleep(as5011->button_gpio);
+
+ input_report_key(as5011->input_dev, BTN_JOYSTICK, !val);
+ input_sync(as5011->input_dev);
+
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t as5011_axis_interrupt(int irq, void *dev_id)
+{
+ struct as5011_device *as5011 = dev_id;
+ int error;
+ signed char x, y;
+
+ error = as5011_i2c_read(as5011->i2c_client, AS5011_X_RES_INT, &x);
+ if (error < 0)
+ goto out;
+
+ error = as5011_i2c_read(as5011->i2c_client, AS5011_Y_RES_INT, &y);
+ if (error < 0)
+ goto out;
+
+ input_report_abs(as5011->input_dev, ABS_X, x);
+ input_report_abs(as5011->input_dev, ABS_Y, y);
+ input_sync(as5011->input_dev);
+
+out:
+ return IRQ_HANDLED;
+}
+
+static int __devinit as5011_configure_chip(struct as5011_device *as5011,
+ const struct as5011_platform_data *plat_dat)
+{
+ struct i2c_client *client = as5011->i2c_client;
+ int error;
+ signed char value;
+
+ /* chip soft reset */
+ error = as5011_i2c_write(client, AS5011_CTRL1,
+ AS5011_CTRL1_SOFT_RST);
+ if (error < 0) {
+ dev_err(&client->dev, "Soft reset failed\n");
+ return error;
+ }
+
+ mdelay(10);
+
+ error = as5011_i2c_write(client, AS5011_CTRL1,
+ AS5011_CTRL1_LP_PULSED |
+ AS5011_CTRL1_LP_ACTIVE |
+ AS5011_CTRL1_INT_ACT_EN);
+ if (error < 0) {
+ dev_err(&client->dev, "Power config failed\n");
+ return error;
+ }
+
+ error = as5011_i2c_write(client, AS5011_CTRL2,
+ AS5011_CTRL2_INV_SPINNING);
+ if (error < 0) {
+ dev_err(&client->dev, "Can't invert spinning\n");
+ return error;
+ }
+
+ /* write threshold */
+ error = as5011_i2c_write(client, AS5011_XP, plat_dat->xp);
+ if (error < 0) {
+ dev_err(&client->dev, "Can't write threshold\n");
+ return error;
+ }
+
+ error = as5011_i2c_write(client, AS5011_XN, plat_dat->xn);
+ if (error < 0) {
+ dev_err(&client->dev, "Can't write threshold\n");
+ return error;
+ }
+
+ error = as5011_i2c_write(client, AS5011_YP, plat_dat->yp);
+ if (error < 0) {
+ dev_err(&client->dev, "Can't write threshold\n");
+ return error;
+ }
+
+ error = as5011_i2c_write(client, AS5011_YN, plat_dat->yn);
+ if (error < 0) {
+ dev_err(&client->dev, "Can't write threshold\n");
+ return error;
+ }
+
+ /* to free irq gpio in chip */
+ error = as5011_i2c_read(client, AS5011_X_RES_INT, &value);
+ if (error < 0) {
+ dev_err(&client->dev, "Can't read i2c X resolution value\n");
+ return error;
+ }
+
+ return 0;
+}
+
+static int __devinit as5011_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ const struct as5011_platform_data *plat_data;
+ struct as5011_device *as5011;
+ struct input_dev *input_dev;
+ int irq;
+ int error;
+
+ plat_data = client->dev.platform_data;
+ if (!plat_data)
+ return -EINVAL;
+
+ if (!plat_data->axis_irq) {
+ dev_err(&client->dev, "No axis IRQ?\n");
+ return -EINVAL;
+ }
+
+ if (!i2c_check_functionality(client->adapter,
+ I2C_FUNC_PROTOCOL_MANGLING)) {
+ dev_err(&client->dev,
+ "need i2c bus that supports protocol mangling\n");
+ return -ENODEV;
+ }
+
+ as5011 = kmalloc(sizeof(struct as5011_device), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!as5011 || !input_dev) {
+ dev_err(&client->dev,
+ "Can't allocate memory for device structure\n");
+ error = -ENOMEM;
+ goto err_free_mem;
+ }
+
+ as5011->i2c_client = client;
+ as5011->input_dev = input_dev;
+ as5011->button_gpio = plat_data->button_gpio;
+ as5011->axis_irq = plat_data->axis_irq;
+
+ input_dev->name = "Austria Microsystem as5011 joystick";
+ input_dev->id.bustype = BUS_I2C;
+ input_dev->dev.parent = &client->dev;
+
+ __set_bit(EV_KEY, input_dev->evbit);
+ __set_bit(EV_ABS, input_dev->evbit);
+ __set_bit(BTN_JOYSTICK, input_dev->keybit);
+
+ input_set_abs_params(input_dev, ABS_X,
+ AS5011_MIN_AXIS, AS5011_MAX_AXIS, AS5011_FUZZ, AS5011_FLAT);
+ input_set_abs_params(as5011->input_dev, ABS_Y,
+ AS5011_MIN_AXIS, AS5011_MAX_AXIS, AS5011_FUZZ, AS5011_FLAT);
+
+ error = gpio_request(as5011->button_gpio, "AS5011 button");
+ if (error < 0) {
+ dev_err(&client->dev, "Failed to request button gpio\n");
+ goto err_free_mem;
+ }
+
+ irq = gpio_to_irq(as5011->button_gpio);
+ if (irq < 0) {
+ dev_err(&client->dev,
+ "Failed to get irq number for button gpio\n");
+ goto err_free_button_gpio;
+ }
+
+ as5011->button_irq = irq;
+
+ error = request_threaded_irq(as5011->button_irq,
+ NULL, as5011_button_interrupt,
+ IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
+ "as5011_button", as5011);
+ if (error < 0) {
+ dev_err(&client->dev,
+ "Can't allocate button irq %d\n", as5011->button_irq);
+ goto err_free_button_gpio;
+ }
+
+ error = as5011_configure_chip(as5011, plat_data);
+ if (error)
+ goto err_free_button_irq;
+
+ error = request_threaded_irq(as5011->axis_irq, NULL,
+ as5011_axis_interrupt,
+ plat_data->axis_irqflags,
+ "as5011_joystick", as5011);
+ if (error) {
+ dev_err(&client->dev,
+ "Can't allocate axis irq %d\n", plat_data->axis_irq);
+ goto err_free_button_irq;
+ }
+
+ error = input_register_device(as5011->input_dev);
+ if (error) {
+ dev_err(&client->dev, "Failed to register input device\n");
+ goto err_free_axis_irq;
+ }
+
+ i2c_set_clientdata(client, as5011);
+
+ return 0;
+
+err_free_axis_irq:
+ free_irq(as5011->axis_irq, as5011);
+err_free_button_irq:
+ free_irq(as5011->button_irq, as5011);
+err_free_button_gpio:
+ gpio_free(as5011->button_gpio);
+err_free_mem:
+ input_free_device(input_dev);
+ kfree(as5011);
+
+ return error;
+}
+
+static int __devexit as5011_remove(struct i2c_client *client)
+{
+ struct as5011_device *as5011 = i2c_get_clientdata(client);
+
+ free_irq(as5011->axis_irq, as5011);
+ free_irq(as5011->button_irq, as5011);
+ gpio_free(as5011->button_gpio);
+
+ input_unregister_device(as5011->input_dev);
+ kfree(as5011);
+
+ return 0;
+}
+
+static const struct i2c_device_id as5011_id[] = {
+ { MODULE_DEVICE_ALIAS, 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, as5011_id);
+
+static struct i2c_driver as5011_driver = {
+ .driver = {
+ .name = "as5011",
+ },
+ .probe = as5011_probe,
+ .remove = __devexit_p(as5011_remove),
+ .id_table = as5011_id,
+};
+
+static int __init as5011_init(void)
+{
+ return i2c_add_driver(&as5011_driver);
+}
+module_init(as5011_init);
+
+static void __exit as5011_exit(void)
+{
+ i2c_del_driver(&as5011_driver);
+}
+module_exit(as5011_exit);
diff --git a/drivers/input/joystick/cobra.c b/drivers/input/joystick/cobra.c
new file mode 100644
index 0000000..3497b87
--- /dev/null
+++ b/drivers/input/joystick/cobra.c
@@ -0,0 +1,275 @@
+/*
+ * Copyright (c) 1999-2001 Vojtech Pavlik
+ */
+
+/*
+ * Creative Labs Blaster GamePad Cobra driver for Linux
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * Should you need to contact me, the author, you can do so either by
+ * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
+ * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/init.h>
+#include <linux/gameport.h>
+#include <linux/input.h>
+#include <linux/jiffies.h>
+
+#define DRIVER_DESC "Creative Labs Blaster GamePad Cobra driver"
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+#define COBRA_MAX_STROBE 45 /* 45 us max wait for first strobe */
+#define COBRA_LENGTH 36
+
+static int cobra_btn[] = { BTN_START, BTN_SELECT, BTN_TL, BTN_TR, BTN_X, BTN_Y, BTN_Z, BTN_A, BTN_B, BTN_C, BTN_TL2, BTN_TR2, 0 };
+
+struct cobra {
+ struct gameport *gameport;
+ struct input_dev *dev[2];
+ int reads;
+ int bads;
+ unsigned char exists;
+ char phys[2][32];
+};
+
+static unsigned char cobra_read_packet(struct gameport *gameport, unsigned int *data)
+{
+ unsigned long flags;
+ unsigned char u, v, w;
+ __u64 buf[2];
+ int r[2], t[2];
+ int i, j, ret;
+
+ int strobe = gameport_time(gameport, COBRA_MAX_STROBE);
+
+ for (i = 0; i < 2; i++) {
+ r[i] = buf[i] = 0;
+ t[i] = COBRA_MAX_STROBE;
+ }
+
+ local_irq_save(flags);
+
+ u = gameport_read(gameport);
+
+ do {
+ t[0]--; t[1]--;
+ v = gameport_read(gameport);
+ for (i = 0, w = u ^ v; i < 2 && w; i++, w >>= 2)
+ if (w & 0x30) {
+ if ((w & 0x30) < 0x30 && r[i] < COBRA_LENGTH && t[i] > 0) {
+ buf[i] |= (__u64)((w >> 5) & 1) << r[i]++;
+ t[i] = strobe;
+ u = v;
+ } else t[i] = 0;
+ }
+ } while (t[0] > 0 || t[1] > 0);
+
+ local_irq_restore(flags);
+
+ ret = 0;
+
+ for (i = 0; i < 2; i++) {
+
+ if (r[i] != COBRA_LENGTH) continue;
+
+ for (j = 0; j < COBRA_LENGTH && (buf[i] & 0x04104107f) ^ 0x041041040; j++)
+ buf[i] = (buf[i] >> 1) | ((__u64)(buf[i] & 1) << (COBRA_LENGTH - 1));
+
+ if (j < COBRA_LENGTH) ret |= (1 << i);
+
+ data[i] = ((buf[i] >> 7) & 0x000001f) | ((buf[i] >> 8) & 0x00003e0)
+ | ((buf[i] >> 9) & 0x0007c00) | ((buf[i] >> 10) & 0x00f8000)
+ | ((buf[i] >> 11) & 0x1f00000);
+
+ }
+
+ return ret;
+}
+
+static void cobra_poll(struct gameport *gameport)
+{
+ struct cobra *cobra = gameport_get_drvdata(gameport);
+ struct input_dev *dev;
+ unsigned int data[2];
+ int i, j, r;
+
+ cobra->reads++;
+
+ if ((r = cobra_read_packet(gameport, data)) != cobra->exists) {
+ cobra->bads++;
+ return;
+ }
+
+ for (i = 0; i < 2; i++)
+ if (cobra->exists & r & (1 << i)) {
+
+ dev = cobra->dev[i];
+
+ input_report_abs(dev, ABS_X, ((data[i] >> 4) & 1) - ((data[i] >> 3) & 1));
+ input_report_abs(dev, ABS_Y, ((data[i] >> 2) & 1) - ((data[i] >> 1) & 1));
+
+ for (j = 0; cobra_btn[j]; j++)
+ input_report_key(dev, cobra_btn[j], data[i] & (0x20 << j));
+
+ input_sync(dev);
+
+ }
+}
+
+static int cobra_open(struct input_dev *dev)
+{
+ struct cobra *cobra = input_get_drvdata(dev);
+
+ gameport_start_polling(cobra->gameport);
+ return 0;
+}
+
+static void cobra_close(struct input_dev *dev)
+{
+ struct cobra *cobra = input_get_drvdata(dev);
+
+ gameport_stop_polling(cobra->gameport);
+}
+
+static int cobra_connect(struct gameport *gameport, struct gameport_driver *drv)
+{
+ struct cobra *cobra;
+ struct input_dev *input_dev;
+ unsigned int data[2];
+ int i, j;
+ int err;
+
+ cobra = kzalloc(sizeof(struct cobra), GFP_KERNEL);
+ if (!cobra)
+ return -ENOMEM;
+
+ cobra->gameport = gameport;
+
+ gameport_set_drvdata(gameport, cobra);
+
+ err = gameport_open(gameport, drv, GAMEPORT_MODE_RAW);
+ if (err)
+ goto fail1;
+
+ cobra->exists = cobra_read_packet(gameport, data);
+
+ for (i = 0; i < 2; i++)
+ if ((cobra->exists >> i) & data[i] & 1) {
+ printk(KERN_WARNING "cobra.c: Device %d on %s has the Ext bit set. ID is: %d"
+ " Contact vojtech@ucw.cz\n", i, gameport->phys, (data[i] >> 2) & 7);
+ cobra->exists &= ~(1 << i);
+ }
+
+ if (!cobra->exists) {
+ err = -ENODEV;
+ goto fail2;
+ }
+
+ gameport_set_poll_handler(gameport, cobra_poll);
+ gameport_set_poll_interval(gameport, 20);
+
+ for (i = 0; i < 2; i++) {
+ if (~(cobra->exists >> i) & 1)
+ continue;
+
+ cobra->dev[i] = input_dev = input_allocate_device();
+ if (!input_dev) {
+ err = -ENOMEM;
+ goto fail3;
+ }
+
+ snprintf(cobra->phys[i], sizeof(cobra->phys[i]),
+ "%s/input%d", gameport->phys, i);
+
+ input_dev->name = "Creative Labs Blaster GamePad Cobra";
+ input_dev->phys = cobra->phys[i];
+ input_dev->id.bustype = BUS_GAMEPORT;
+ input_dev->id.vendor = GAMEPORT_ID_VENDOR_CREATIVE;
+ input_dev->id.product = 0x0008;
+ input_dev->id.version = 0x0100;
+ input_dev->dev.parent = &gameport->dev;
+
+ input_set_drvdata(input_dev, cobra);
+
+ input_dev->open = cobra_open;
+ input_dev->close = cobra_close;
+
+ input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
+ input_set_abs_params(input_dev, ABS_X, -1, 1, 0, 0);
+ input_set_abs_params(input_dev, ABS_Y, -1, 1, 0, 0);
+ for (j = 0; cobra_btn[j]; j++)
+ set_bit(cobra_btn[j], input_dev->keybit);
+
+ err = input_register_device(cobra->dev[i]);
+ if (err)
+ goto fail4;
+ }
+
+ return 0;
+
+ fail4: input_free_device(cobra->dev[i]);
+ fail3: while (--i >= 0)
+ if (cobra->dev[i])
+ input_unregister_device(cobra->dev[i]);
+ fail2: gameport_close(gameport);
+ fail1: gameport_set_drvdata(gameport, NULL);
+ kfree(cobra);
+ return err;
+}
+
+static void cobra_disconnect(struct gameport *gameport)
+{
+ struct cobra *cobra = gameport_get_drvdata(gameport);
+ int i;
+
+ for (i = 0; i < 2; i++)
+ if ((cobra->exists >> i) & 1)
+ input_unregister_device(cobra->dev[i]);
+ gameport_close(gameport);
+ gameport_set_drvdata(gameport, NULL);
+ kfree(cobra);
+}
+
+static struct gameport_driver cobra_drv = {
+ .driver = {
+ .name = "cobra",
+ },
+ .description = DRIVER_DESC,
+ .connect = cobra_connect,
+ .disconnect = cobra_disconnect,
+};
+
+static int __init cobra_init(void)
+{
+ return gameport_register_driver(&cobra_drv);
+}
+
+static void __exit cobra_exit(void)
+{
+ gameport_unregister_driver(&cobra_drv);
+}
+
+module_init(cobra_init);
+module_exit(cobra_exit);
diff --git a/drivers/input/joystick/db9.c b/drivers/input/joystick/db9.c
new file mode 100644
index 0000000..8e7de5c
--- /dev/null
+++ b/drivers/input/joystick/db9.c
@@ -0,0 +1,720 @@
+/*
+ * Copyright (c) 1999-2001 Vojtech Pavlik
+ *
+ * Based on the work of:
+ * Andree Borrmann Mats Sjövall
+ */
+
+/*
+ * Atari, Amstrad, Commodore, Amiga, Sega, etc. joystick driver for Linux
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * Should you need to contact me, the author, you can do so either by
+ * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
+ * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/delay.h>
+#include <linux/init.h>
+#include <linux/parport.h>
+#include <linux/input.h>
+#include <linux/mutex.h>
+#include <linux/slab.h>
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
+MODULE_DESCRIPTION("Atari, Amstrad, Commodore, Amiga, Sega, etc. joystick driver");
+MODULE_LICENSE("GPL");
+
+struct db9_config {
+ int args[2];
+ unsigned int nargs;
+};
+
+#define DB9_MAX_PORTS 3
+static struct db9_config db9_cfg[DB9_MAX_PORTS] __initdata;
+
+module_param_array_named(dev, db9_cfg[0].args, int, &db9_cfg[0].nargs, 0);
+MODULE_PARM_DESC(dev, "Describes first attached device (<parport#>,<type>)");
+module_param_array_named(dev2, db9_cfg[1].args, int, &db9_cfg[1].nargs, 0);
+MODULE_PARM_DESC(dev2, "Describes second attached device (<parport#>,<type>)");
+module_param_array_named(dev3, db9_cfg[2].args, int, &db9_cfg[2].nargs, 0);
+MODULE_PARM_DESC(dev3, "Describes third attached device (<parport#>,<type>)");
+
+#define DB9_ARG_PARPORT 0
+#define DB9_ARG_MODE 1
+
+#define DB9_MULTI_STICK 0x01
+#define DB9_MULTI2_STICK 0x02
+#define DB9_GENESIS_PAD 0x03
+#define DB9_GENESIS5_PAD 0x05
+#define DB9_GENESIS6_PAD 0x06
+#define DB9_SATURN_PAD 0x07
+#define DB9_MULTI_0802 0x08
+#define DB9_MULTI_0802_2 0x09
+#define DB9_CD32_PAD 0x0A
+#define DB9_SATURN_DPP 0x0B
+#define DB9_SATURN_DPP_2 0x0C
+#define DB9_MAX_PAD 0x0D
+
+#define DB9_UP 0x01
+#define DB9_DOWN 0x02
+#define DB9_LEFT 0x04
+#define DB9_RIGHT 0x08
+#define DB9_FIRE1 0x10
+#define DB9_FIRE2 0x20
+#define DB9_FIRE3 0x40
+#define DB9_FIRE4 0x80
+
+#define DB9_NORMAL 0x0a
+#define DB9_NOSELECT 0x08
+
+#define DB9_GENESIS6_DELAY 14
+#define DB9_REFRESH_TIME HZ/100
+
+#define DB9_MAX_DEVICES 2
+
+struct db9_mode_data {
+ const char *name;
+ const short *buttons;
+ int n_buttons;
+ int n_pads;
+ int n_axis;
+ int bidirectional;
+ int reverse;
+};
+
+struct db9 {
+ struct input_dev *dev[DB9_MAX_DEVICES];
+ struct timer_list timer;
+ struct pardevice *pd;
+ int mode;
+ int used;
+ struct mutex mutex;
+ char phys[DB9_MAX_DEVICES][32];
+};
+
+static struct db9 *db9_base[3];
+
+static const short db9_multi_btn[] = { BTN_TRIGGER, BTN_THUMB };
+static const short db9_genesis_btn[] = { BTN_START, BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z, BTN_MODE };
+static const short db9_cd32_btn[] = { BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z, BTN_TL, BTN_TR, BTN_START };
+static const short db9_abs[] = { ABS_X, ABS_Y, ABS_RX, ABS_RY, ABS_RZ, ABS_Z, ABS_HAT0X, ABS_HAT0Y, ABS_HAT1X, ABS_HAT1Y };
+
+static const struct db9_mode_data db9_modes[] = {
+ { NULL, NULL, 0, 0, 0, 0, 0 },
+ { "Multisystem joystick", db9_multi_btn, 1, 1, 2, 1, 1 },
+ { "Multisystem joystick (2 fire)", db9_multi_btn, 2, 1, 2, 1, 1 },
+ { "Genesis pad", db9_genesis_btn, 4, 1, 2, 1, 1 },
+ { NULL, NULL, 0, 0, 0, 0, 0 },
+ { "Genesis 5 pad", db9_genesis_btn, 6, 1, 2, 1, 1 },
+ { "Genesis 6 pad", db9_genesis_btn, 8, 1, 2, 1, 1 },
+ { "Saturn pad", db9_cd32_btn, 9, 6, 7, 0, 1 },
+ { "Multisystem (0.8.0.2) joystick", db9_multi_btn, 1, 1, 2, 1, 1 },
+ { "Multisystem (0.8.0.2-dual) joystick", db9_multi_btn, 1, 2, 2, 1, 1 },
+ { "Amiga CD-32 pad", db9_cd32_btn, 7, 1, 2, 1, 1 },
+ { "Saturn dpp", db9_cd32_btn, 9, 6, 7, 0, 0 },
+ { "Saturn dpp dual", db9_cd32_btn, 9, 12, 7, 0, 0 },
+};
+
+/*
+ * Saturn controllers
+ */
+#define DB9_SATURN_DELAY 300
+static const int db9_saturn_byte[] = { 1, 1, 1, 2, 2, 2, 2, 2, 1 };
+static const unsigned char db9_saturn_mask[] = { 0x04, 0x01, 0x02, 0x40, 0x20, 0x10, 0x08, 0x80, 0x08 };
+
+/*
+ * db9_saturn_write_sub() writes 2 bit data.
+ */
+static void db9_saturn_write_sub(struct parport *port, int type, unsigned char data, int powered, int pwr_sub)
+{
+ unsigned char c;
+
+ switch (type) {
+ case 1: /* DPP1 */
+ c = 0x80 | 0x30 | (powered ? 0x08 : 0) | (pwr_sub ? 0x04 : 0) | data;
+ parport_write_data(port, c);
+ break;
+ case 2: /* DPP2 */
+ c = 0x40 | data << 4 | (powered ? 0x08 : 0) | (pwr_sub ? 0x04 : 0) | 0x03;
+ parport_write_data(port, c);
+ break;
+ case 0: /* DB9 */
+ c = ((((data & 2) ? 2 : 0) | ((data & 1) ? 4 : 0)) ^ 0x02) | !powered;
+ parport_write_control(port, c);
+ break;
+ }
+}
+
+/*
+ * gc_saturn_read_sub() reads 4 bit data.
+ */
+static unsigned char db9_saturn_read_sub(struct parport *port, int type)
+{
+ unsigned char data;
+
+ if (type) {
+ /* DPP */
+ data = parport_read_status(port) ^ 0x80;
+ return (data & 0x80 ? 1 : 0) | (data & 0x40 ? 2 : 0)
+ | (data & 0x20 ? 4 : 0) | (data & 0x10 ? 8 : 0);
+ } else {
+ /* DB9 */
+ data = parport_read_data(port) & 0x0f;
+ return (data & 0x8 ? 1 : 0) | (data & 0x4 ? 2 : 0)
+ | (data & 0x2 ? 4 : 0) | (data & 0x1 ? 8 : 0);
+ }
+}
+
+/*
+ * db9_saturn_read_analog() sends clock and reads 8 bit data.
+ */
+static unsigned char db9_saturn_read_analog(struct parport *port, int type, int powered)
+{
+ unsigned char data;
+
+ db9_saturn_write_sub(port, type, 0, powered, 0);
+ udelay(DB9_SATURN_DELAY);
+ data = db9_saturn_read_sub(port, type) << 4;
+ db9_saturn_write_sub(port, type, 2, powered, 0);
+ udelay(DB9_SATURN_DELAY);
+ data |= db9_saturn_read_sub(port, type);
+ return data;
+}
+
+/*
+ * db9_saturn_read_packet() reads whole saturn packet at connector
+ * and returns device identifier code.
+ */
+static unsigned char db9_saturn_read_packet(struct parport *port, unsigned char *data, int type, int powered)
+{
+ int i, j;
+ unsigned char tmp;
+
+ db9_saturn_write_sub(port, type, 3, powered, 0);
+ data[0] = db9_saturn_read_sub(port, type);
+ switch (data[0] & 0x0f) {
+ case 0xf:
+ /* 1111 no pad */
+ return data[0] = 0xff;
+ case 0x4: case 0x4 | 0x8:
+ /* ?100 : digital controller */
+ db9_saturn_write_sub(port, type, 0, powered, 1);
+ data[2] = db9_saturn_read_sub(port, type) << 4;
+ db9_saturn_write_sub(port, type, 2, powered, 1);
+ data[1] = db9_saturn_read_sub(port, type) << 4;
+ db9_saturn_write_sub(port, type, 1, powered, 1);
+ data[1] |= db9_saturn_read_sub(port, type);
+ db9_saturn_write_sub(port, type, 3, powered, 1);
+ /* data[2] |= db9_saturn_read_sub(port, type); */
+ data[2] |= data[0];
+ return data[0] = 0x02;
+ case 0x1:
+ /* 0001 : analog controller or multitap */
+ db9_saturn_write_sub(port, type, 2, powered, 0);
+ udelay(DB9_SATURN_DELAY);
+ data[0] = db9_saturn_read_analog(port, type, powered);
+ if (data[0] != 0x41) {
+ /* read analog controller */
+ for (i = 0; i < (data[0] & 0x0f); i++)
+ data[i + 1] = db9_saturn_read_analog(port, type, powered);
+ db9_saturn_write_sub(port, type, 3, powered, 0);
+ return data[0];
+ } else {
+ /* read multitap */
+ if (db9_saturn_read_analog(port, type, powered) != 0x60)
+ return data[0] = 0xff;
+ for (i = 0; i < 60; i += 10) {
+ data[i] = db9_saturn_read_analog(port, type, powered);
+ if (data[i] != 0xff)
+ /* read each pad */
+ for (j = 0; j < (data[i] & 0x0f); j++)
+ data[i + j + 1] = db9_saturn_read_analog(port, type, powered);
+ }
+ db9_saturn_write_sub(port, type, 3, powered, 0);
+ return 0x41;
+ }
+ case 0x0:
+ /* 0000 : mouse */
+ db9_saturn_write_sub(port, type, 2, powered, 0);
+ udelay(DB9_SATURN_DELAY);
+ tmp = db9_saturn_read_analog(port, type, powered);
+ if (tmp == 0xff) {
+ for (i = 0; i < 3; i++)
+ data[i + 1] = db9_saturn_read_analog(port, type, powered);
+ db9_saturn_write_sub(port, type, 3, powered, 0);
+ return data[0] = 0xe3;
+ }
+ default:
+ return data[0];
+ }
+}
+
+/*
+ * db9_saturn_report() analyzes packet and reports.
+ */
+static int db9_saturn_report(unsigned char id, unsigned char data[60], struct input_dev *devs[], int n, int max_pads)
+{
+ struct input_dev *dev;
+ int tmp, i, j;
+
+ tmp = (id == 0x41) ? 60 : 10;
+ for (j = 0; j < tmp && n < max_pads; j += 10, n++) {
+ dev = devs[n];
+ switch (data[j]) {
+ case 0x16: /* multi controller (analog 4 axis) */
+ input_report_abs(dev, db9_abs[5], data[j + 6]);
+ case 0x15: /* mission stick (analog 3 axis) */
+ input_report_abs(dev, db9_abs[3], data[j + 4]);
+ input_report_abs(dev, db9_abs[4], data[j + 5]);
+ case 0x13: /* racing controller (analog 1 axis) */
+ input_report_abs(dev, db9_abs[2], data[j + 3]);
+ case 0x34: /* saturn keyboard (udlr ZXC ASD QE Esc) */
+ case 0x02: /* digital pad (digital 2 axis + buttons) */
+ input_report_abs(dev, db9_abs[0], !(data[j + 1] & 128) - !(data[j + 1] & 64));
+ input_report_abs(dev, db9_abs[1], !(data[j + 1] & 32) - !(data[j + 1] & 16));
+ for (i = 0; i < 9; i++)
+ input_report_key(dev, db9_cd32_btn[i], ~data[j + db9_saturn_byte[i]] & db9_saturn_mask[i]);
+ break;
+ case 0x19: /* mission stick x2 (analog 6 axis + buttons) */
+ input_report_abs(dev, db9_abs[0], !(data[j + 1] & 128) - !(data[j + 1] & 64));
+ input_report_abs(dev, db9_abs[1], !(data[j + 1] & 32) - !(data[j + 1] & 16));
+ for (i = 0; i < 9; i++)
+ input_report_key(dev, db9_cd32_btn[i], ~data[j + db9_saturn_byte[i]] & db9_saturn_mask[i]);
+ input_report_abs(dev, db9_abs[2], data[j + 3]);
+ input_report_abs(dev, db9_abs[3], data[j + 4]);
+ input_report_abs(dev, db9_abs[4], data[j + 5]);
+ /*
+ input_report_abs(dev, db9_abs[8], (data[j + 6] & 128 ? 0 : 1) - (data[j + 6] & 64 ? 0 : 1));
+ input_report_abs(dev, db9_abs[9], (data[j + 6] & 32 ? 0 : 1) - (data[j + 6] & 16 ? 0 : 1));
+ */
+ input_report_abs(dev, db9_abs[6], data[j + 7]);
+ input_report_abs(dev, db9_abs[7], data[j + 8]);
+ input_report_abs(dev, db9_abs[5], data[j + 9]);
+ break;
+ case 0xd3: /* sankyo ff (analog 1 axis + stop btn) */
+ input_report_key(dev, BTN_A, data[j + 3] & 0x80);
+ input_report_abs(dev, db9_abs[2], data[j + 3] & 0x7f);
+ break;
+ case 0xe3: /* shuttle mouse (analog 2 axis + buttons. signed value) */
+ input_report_key(dev, BTN_START, data[j + 1] & 0x08);
+ input_report_key(dev, BTN_A, data[j + 1] & 0x04);
+ input_report_key(dev, BTN_C, data[j + 1] & 0x02);
+ input_report_key(dev, BTN_B, data[j + 1] & 0x01);
+ input_report_abs(dev, db9_abs[2], data[j + 2] ^ 0x80);
+ input_report_abs(dev, db9_abs[3], (0xff-(data[j + 3] ^ 0x80))+1); /* */
+ break;
+ case 0xff:
+ default: /* no pad */
+ input_report_abs(dev, db9_abs[0], 0);
+ input_report_abs(dev, db9_abs[1], 0);
+ for (i = 0; i < 9; i++)
+ input_report_key(dev, db9_cd32_btn[i], 0);
+ break;
+ }
+ }
+ return n;
+}
+
+static int db9_saturn(int mode, struct parport *port, struct input_dev *devs[])
+{
+ unsigned char id, data[60];
+ int type, n, max_pads;
+ int tmp, i;
+
+ switch (mode) {
+ case DB9_SATURN_PAD:
+ type = 0;
+ n = 1;
+ break;
+ case DB9_SATURN_DPP:
+ type = 1;
+ n = 1;
+ break;
+ case DB9_SATURN_DPP_2:
+ type = 1;
+ n = 2;
+ break;
+ default:
+ return -1;
+ }
+ max_pads = min(db9_modes[mode].n_pads, DB9_MAX_DEVICES);
+ for (tmp = 0, i = 0; i < n; i++) {
+ id = db9_saturn_read_packet(port, data, type + i, 1);
+ tmp = db9_saturn_report(id, data, devs, tmp, max_pads);
+ }
+ return 0;
+}
+
+static void db9_timer(unsigned long private)
+{
+ struct db9 *db9 = (void *) private;
+ struct parport *port = db9->pd->port;
+ struct input_dev *dev = db9->dev[0];
+ struct input_dev *dev2 = db9->dev[1];
+ int data, i;
+
+ switch (db9->mode) {
+ case DB9_MULTI_0802_2:
+
+ data = parport_read_data(port) >> 3;
+
+ input_report_abs(dev2, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1));
+ input_report_abs(dev2, ABS_Y, (data & DB9_DOWN ? 0 : 1) - (data & DB9_UP ? 0 : 1));
+ input_report_key(dev2, BTN_TRIGGER, ~data & DB9_FIRE1);
+
+ case DB9_MULTI_0802:
+
+ data = parport_read_status(port) >> 3;
+
+ input_report_abs(dev, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1));
+ input_report_abs(dev, ABS_Y, (data & DB9_DOWN ? 0 : 1) - (data & DB9_UP ? 0 : 1));
+ input_report_key(dev, BTN_TRIGGER, data & DB9_FIRE1);
+ break;
+
+ case DB9_MULTI_STICK:
+
+ data = parport_read_data(port);
+
+ input_report_abs(dev, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1));
+ input_report_abs(dev, ABS_Y, (data & DB9_DOWN ? 0 : 1) - (data & DB9_UP ? 0 : 1));
+ input_report_key(dev, BTN_TRIGGER, ~data & DB9_FIRE1);
+ break;
+
+ case DB9_MULTI2_STICK:
+
+ data = parport_read_data(port);
+
+ input_report_abs(dev, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1));
+ input_report_abs(dev, ABS_Y, (data & DB9_DOWN ? 0 : 1) - (data & DB9_UP ? 0 : 1));
+ input_report_key(dev, BTN_TRIGGER, ~data & DB9_FIRE1);
+ input_report_key(dev, BTN_THUMB, ~data & DB9_FIRE2);
+ break;
+
+ case DB9_GENESIS_PAD:
+
+ parport_write_control(port, DB9_NOSELECT);
+ data = parport_read_data(port);
+
+ input_report_abs(dev, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1));
+ input_report_abs(dev, ABS_Y, (data & DB9_DOWN ? 0 : 1) - (data & DB9_UP ? 0 : 1));
+ input_report_key(dev, BTN_B, ~data & DB9_FIRE1);
+ input_report_key(dev, BTN_C, ~data & DB9_FIRE2);
+
+ parport_write_control(port, DB9_NORMAL);
+ data = parport_read_data(port);
+
+ input_report_key(dev, BTN_A, ~data & DB9_FIRE1);
+ input_report_key(dev, BTN_START, ~data & DB9_FIRE2);
+ break;
+
+ case DB9_GENESIS5_PAD:
+
+ parport_write_control(port, DB9_NOSELECT);
+ data = parport_read_data(port);
+
+ input_report_abs(dev, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1));
+ input_report_abs(dev, ABS_Y, (data & DB9_DOWN ? 0 : 1) - (data & DB9_UP ? 0 : 1));
+ input_report_key(dev, BTN_B, ~data & DB9_FIRE1);
+ input_report_key(dev, BTN_C, ~data & DB9_FIRE2);
+
+ parport_write_control(port, DB9_NORMAL);
+ data = parport_read_data(port);
+
+ input_report_key(dev, BTN_A, ~data & DB9_FIRE1);
+ input_report_key(dev, BTN_X, ~data & DB9_FIRE2);
+ input_report_key(dev, BTN_Y, ~data & DB9_LEFT);
+ input_report_key(dev, BTN_START, ~data & DB9_RIGHT);
+ break;
+
+ case DB9_GENESIS6_PAD:
+
+ parport_write_control(port, DB9_NOSELECT); /* 1 */
+ udelay(DB9_GENESIS6_DELAY);
+ data = parport_read_data(port);
+
+ input_report_abs(dev, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1));
+ input_report_abs(dev, ABS_Y, (data & DB9_DOWN ? 0 : 1) - (data & DB9_UP ? 0 : 1));
+ input_report_key(dev, BTN_B, ~data & DB9_FIRE1);
+ input_report_key(dev, BTN_C, ~data & DB9_FIRE2);
+
+ parport_write_control(port, DB9_NORMAL);
+ udelay(DB9_GENESIS6_DELAY);
+ data = parport_read_data(port);
+
+ input_report_key(dev, BTN_A, ~data & DB9_FIRE1);
+ input_report_key(dev, BTN_START, ~data & DB9_FIRE2);
+
+ parport_write_control(port, DB9_NOSELECT); /* 2 */
+ udelay(DB9_GENESIS6_DELAY);
+ parport_write_control(port, DB9_NORMAL);
+ udelay(DB9_GENESIS6_DELAY);
+ parport_write_control(port, DB9_NOSELECT); /* 3 */
+ udelay(DB9_GENESIS6_DELAY);
+ data=parport_read_data(port);
+
+ input_report_key(dev, BTN_X, ~data & DB9_LEFT);
+ input_report_key(dev, BTN_Y, ~data & DB9_DOWN);
+ input_report_key(dev, BTN_Z, ~data & DB9_UP);
+ input_report_key(dev, BTN_MODE, ~data & DB9_RIGHT);
+
+ parport_write_control(port, DB9_NORMAL);
+ udelay(DB9_GENESIS6_DELAY);
+ parport_write_control(port, DB9_NOSELECT); /* 4 */
+ udelay(DB9_GENESIS6_DELAY);
+ parport_write_control(port, DB9_NORMAL);
+ break;
+
+ case DB9_SATURN_PAD:
+ case DB9_SATURN_DPP:
+ case DB9_SATURN_DPP_2:
+
+ db9_saturn(db9->mode, port, db9->dev);
+ break;
+
+ case DB9_CD32_PAD:
+
+ data = parport_read_data(port);
+
+ input_report_abs(dev, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1));
+ input_report_abs(dev, ABS_Y, (data & DB9_DOWN ? 0 : 1) - (data & DB9_UP ? 0 : 1));
+
+ parport_write_control(port, 0x0a);
+
+ for (i = 0; i < 7; i++) {
+ data = parport_read_data(port);
+ parport_write_control(port, 0x02);
+ parport_write_control(port, 0x0a);
+ input_report_key(dev, db9_cd32_btn[i], ~data & DB9_FIRE2);
+ }
+
+ parport_write_control(port, 0x00);
+ break;
+ }
+
+ input_sync(dev);
+
+ mod_timer(&db9->timer, jiffies + DB9_REFRESH_TIME);
+}
+
+static int db9_open(struct input_dev *dev)
+{
+ struct db9 *db9 = input_get_drvdata(dev);
+ struct parport *port = db9->pd->port;
+ int err;
+
+ err = mutex_lock_interruptible(&db9->mutex);
+ if (err)
+ return err;
+
+ if (!db9->used++) {
+ parport_claim(db9->pd);
+ parport_write_data(port, 0xff);
+ if (db9_modes[db9->mode].reverse) {
+ parport_data_reverse(port);
+ parport_write_control(port, DB9_NORMAL);
+ }
+ mod_timer(&db9->timer, jiffies + DB9_REFRESH_TIME);
+ }
+
+ mutex_unlock(&db9->mutex);
+ return 0;
+}
+
+static void db9_close(struct input_dev *dev)
+{
+ struct db9 *db9 = input_get_drvdata(dev);
+ struct parport *port = db9->pd->port;
+
+ mutex_lock(&db9->mutex);
+ if (!--db9->used) {
+ del_timer_sync(&db9->timer);
+ parport_write_control(port, 0x00);
+ parport_data_forward(port);
+ parport_release(db9->pd);
+ }
+ mutex_unlock(&db9->mutex);
+}
+
+static struct db9 __init *db9_probe(int parport, int mode)
+{
+ struct db9 *db9;
+ const struct db9_mode_data *db9_mode;
+ struct parport *pp;
+ struct pardevice *pd;
+ struct input_dev *input_dev;
+ int i, j;
+ int err;
+
+ if (mode < 1 || mode >= DB9_MAX_PAD || !db9_modes[mode].n_buttons) {
+ printk(KERN_ERR "db9.c: Bad device type %d\n", mode);
+ err = -EINVAL;
+ goto err_out;
+ }
+
+ db9_mode = &db9_modes[mode];
+
+ pp = parport_find_number(parport);
+ if (!pp) {
+ printk(KERN_ERR "db9.c: no such parport\n");
+ err = -ENODEV;
+ goto err_out;
+ }
+
+ if (db9_mode->bidirectional && !(pp->modes & PARPORT_MODE_TRISTATE)) {
+ printk(KERN_ERR "db9.c: specified parport is not bidirectional\n");
+ err = -EINVAL;
+ goto err_put_pp;
+ }
+
+ pd = parport_register_device(pp, "db9", NULL, NULL, NULL, PARPORT_DEV_EXCL, NULL);
+ if (!pd) {
+ printk(KERN_ERR "db9.c: parport busy already - lp.o loaded?\n");
+ err = -EBUSY;
+ goto err_put_pp;
+ }
+
+ db9 = kzalloc(sizeof(struct db9), GFP_KERNEL);
+ if (!db9) {
+ printk(KERN_ERR "db9.c: Not enough memory\n");
+ err = -ENOMEM;
+ goto err_unreg_pardev;
+ }
+
+ mutex_init(&db9->mutex);
+ db9->pd = pd;
+ db9->mode = mode;
+ init_timer(&db9->timer);
+ db9->timer.data = (long) db9;
+ db9->timer.function = db9_timer;
+
+ for (i = 0; i < (min(db9_mode->n_pads, DB9_MAX_DEVICES)); i++) {
+
+ db9->dev[i] = input_dev = input_allocate_device();
+ if (!input_dev) {
+ printk(KERN_ERR "db9.c: Not enough memory for input device\n");
+ err = -ENOMEM;
+ goto err_unreg_devs;
+ }
+
+ snprintf(db9->phys[i], sizeof(db9->phys[i]),
+ "%s/input%d", db9->pd->port->name, i);
+
+ input_dev->name = db9_mode->name;
+ input_dev->phys = db9->phys[i];
+ input_dev->id.bustype = BUS_PARPORT;
+ input_dev->id.vendor = 0x0002;
+ input_dev->id.product = mode;
+ input_dev->id.version = 0x0100;
+
+ input_set_drvdata(input_dev, db9);
+
+ input_dev->open = db9_open;
+ input_dev->close = db9_close;
+
+ input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
+ for (j = 0; j < db9_mode->n_buttons; j++)
+ set_bit(db9_mode->buttons[j], input_dev->keybit);
+ for (j = 0; j < db9_mode->n_axis; j++) {
+ if (j < 2)
+ input_set_abs_params(input_dev, db9_abs[j], -1, 1, 0, 0);
+ else
+ input_set_abs_params(input_dev, db9_abs[j], 1, 255, 0, 0);
+ }
+
+ err = input_register_device(input_dev);
+ if (err)
+ goto err_free_dev;
+ }
+
+ parport_put_port(pp);
+ return db9;
+
+ err_free_dev:
+ input_free_device(db9->dev[i]);
+ err_unreg_devs:
+ while (--i >= 0)
+ input_unregister_device(db9->dev[i]);
+ kfree(db9);
+ err_unreg_pardev:
+ parport_unregister_device(pd);
+ err_put_pp:
+ parport_put_port(pp);
+ err_out:
+ return ERR_PTR(err);
+}
+
+static void db9_remove(struct db9 *db9)
+{
+ int i;
+
+ for (i = 0; i < min(db9_modes[db9->mode].n_pads, DB9_MAX_DEVICES); i++)
+ input_unregister_device(db9->dev[i]);
+ parport_unregister_device(db9->pd);
+ kfree(db9);
+}
+
+static int __init db9_init(void)
+{
+ int i;
+ int have_dev = 0;
+ int err = 0;
+
+ for (i = 0; i < DB9_MAX_PORTS; i++) {
+ if (db9_cfg[i].nargs == 0 || db9_cfg[i].args[DB9_ARG_PARPORT] < 0)
+ continue;
+
+ if (db9_cfg[i].nargs < 2) {
+ printk(KERN_ERR "db9.c: Device type must be specified.\n");
+ err = -EINVAL;
+ break;
+ }
+
+ db9_base[i] = db9_probe(db9_cfg[i].args[DB9_ARG_PARPORT],
+ db9_cfg[i].args[DB9_ARG_MODE]);
+ if (IS_ERR(db9_base[i])) {
+ err = PTR_ERR(db9_base[i]);
+ break;
+ }
+
+ have_dev = 1;
+ }
+
+ if (err) {
+ while (--i >= 0)
+ if (db9_base[i])
+ db9_remove(db9_base[i]);
+ return err;
+ }
+
+ return have_dev ? 0 : -ENODEV;
+}
+
+static void __exit db9_exit(void)
+{
+ int i;
+
+ for (i = 0; i < DB9_MAX_PORTS; i++)
+ if (db9_base[i])
+ db9_remove(db9_base[i]);
+}
+
+module_init(db9_init);
+module_exit(db9_exit);
diff --git a/drivers/input/joystick/gamecon.c b/drivers/input/joystick/gamecon.c
new file mode 100644
index 0000000..e68e497
--- /dev/null
+++ b/drivers/input/joystick/gamecon.c
@@ -0,0 +1,1054 @@
+/*
+ * NES, SNES, N64, MultiSystem, PSX gamepad driver for Linux
+ *
+ * Copyright (c) 1999-2004 Vojtech Pavlik <vojtech@suse.cz>
+ * Copyright (c) 2004 Peter Nelson <rufus-kernel@hackish.org>
+ *
+ * Based on the work of:
+ * Andree Borrmann John Dahlstrom
+ * David Kuder Nathan Hand
+ * Raphael Assenat
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * Should you need to contact me, the author, you can do so either by
+ * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
+ * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/kernel.h>
+#include <linux/delay.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/parport.h>
+#include <linux/input.h>
+#include <linux/mutex.h>
+#include <linux/slab.h>
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
+MODULE_DESCRIPTION("NES, SNES, N64, MultiSystem, PSX gamepad driver");
+MODULE_LICENSE("GPL");
+
+#define GC_MAX_PORTS 3
+#define GC_MAX_DEVICES 5
+
+struct gc_config {
+ int args[GC_MAX_DEVICES + 1];
+ unsigned int nargs;
+};
+
+static struct gc_config gc_cfg[GC_MAX_PORTS] __initdata;
+
+module_param_array_named(map, gc_cfg[0].args, int, &gc_cfg[0].nargs, 0);
+MODULE_PARM_DESC(map, "Describes first set of devices (<parport#>,<pad1>,<pad2>,..<pad5>)");
+module_param_array_named(map2, gc_cfg[1].args, int, &gc_cfg[1].nargs, 0);
+MODULE_PARM_DESC(map2, "Describes second set of devices");
+module_param_array_named(map3, gc_cfg[2].args, int, &gc_cfg[2].nargs, 0);
+MODULE_PARM_DESC(map3, "Describes third set of devices");
+
+/* see also gs_psx_delay parameter in PSX support section */
+
+enum gc_type {
+ GC_NONE = 0,
+ GC_SNES,
+ GC_NES,
+ GC_NES4,
+ GC_MULTI,
+ GC_MULTI2,
+ GC_N64,
+ GC_PSX,
+ GC_DDR,
+ GC_SNESMOUSE,
+ GC_MAX
+};
+
+#define GC_REFRESH_TIME HZ/100
+
+struct gc_pad {
+ struct input_dev *dev;
+ enum gc_type type;
+ char phys[32];
+};
+
+struct gc {
+ struct pardevice *pd;
+ struct gc_pad pads[GC_MAX_DEVICES];
+ struct timer_list timer;
+ int pad_count[GC_MAX];
+ int used;
+ struct mutex mutex;
+};
+
+struct gc_subdev {
+ unsigned int idx;
+};
+
+static struct gc *gc_base[3];
+
+static const int gc_status_bit[] = { 0x40, 0x80, 0x20, 0x10, 0x08 };
+
+static const char *gc_names[] = {
+ NULL, "SNES pad", "NES pad", "NES FourPort", "Multisystem joystick",
+ "Multisystem 2-button joystick", "N64 controller", "PSX controller",
+ "PSX DDR controller", "SNES mouse"
+};
+
+/*
+ * N64 support.
+ */
+
+static const unsigned char gc_n64_bytes[] = { 0, 1, 13, 15, 14, 12, 10, 11, 2, 3 };
+static const short gc_n64_btn[] = {
+ BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z,
+ BTN_TL, BTN_TR, BTN_TRIGGER, BTN_START
+};
+
+#define GC_N64_LENGTH 32 /* N64 bit length, not including stop bit */
+#define GC_N64_STOP_LENGTH 5 /* Length of encoded stop bit */
+#define GC_N64_CMD_00 0x11111111UL
+#define GC_N64_CMD_01 0xd1111111UL
+#define GC_N64_CMD_03 0xdd111111UL
+#define GC_N64_CMD_1b 0xdd1dd111UL
+#define GC_N64_CMD_c0 0x111111ddUL
+#define GC_N64_CMD_80 0x1111111dUL
+#define GC_N64_STOP_BIT 0x1d /* Encoded stop bit */
+#define GC_N64_REQUEST_DATA GC_N64_CMD_01 /* the request data command */
+#define GC_N64_DELAY 133 /* delay between transmit request, and response ready (us) */
+#define GC_N64_DWS 3 /* delay between write segments (required for sound playback because of ISA DMA) */
+ /* GC_N64_DWS > 24 is known to fail */
+#define GC_N64_POWER_W 0xe2 /* power during write (transmit request) */
+#define GC_N64_POWER_R 0xfd /* power during read */
+#define GC_N64_OUT 0x1d /* output bits to the 4 pads */
+ /* Reading the main axes of any N64 pad is known to fail if the corresponding bit */
+ /* in GC_N64_OUT is pulled low on the output port (by any routine) for more */
+ /* than 123 us */
+#define GC_N64_CLOCK 0x02 /* clock bits for read */
+
+/*
+ * Used for rumble code.
+ */
+
+/* Send encoded command */
+static void gc_n64_send_command(struct gc *gc, unsigned long cmd,
+ unsigned char target)
+{
+ struct parport *port = gc->pd->port;
+ int i;
+
+ for (i = 0; i < GC_N64_LENGTH; i++) {
+ unsigned char data = (cmd >> i) & 1 ? target : 0;
+ parport_write_data(port, GC_N64_POWER_W | data);
+ udelay(GC_N64_DWS);
+ }
+}
+
+/* Send stop bit */
+static void gc_n64_send_stop_bit(struct gc *gc, unsigned char target)
+{
+ struct parport *port = gc->pd->port;
+ int i;
+
+ for (i = 0; i < GC_N64_STOP_LENGTH; i++) {
+ unsigned char data = (GC_N64_STOP_BIT >> i) & 1 ? target : 0;
+ parport_write_data(port, GC_N64_POWER_W | data);
+ udelay(GC_N64_DWS);
+ }
+}
+
+/*
+ * gc_n64_read_packet() reads an N64 packet.
+ * Each pad uses one bit per byte. So all pads connected to this port
+ * are read in parallel.
+ */
+
+static void gc_n64_read_packet(struct gc *gc, unsigned char *data)
+{
+ int i;
+ unsigned long flags;
+
+/*
+ * Request the pad to transmit data
+ */
+
+ local_irq_save(flags);
+ gc_n64_send_command(gc, GC_N64_REQUEST_DATA, GC_N64_OUT);
+ gc_n64_send_stop_bit(gc, GC_N64_OUT);
+ local_irq_restore(flags);
+
+/*
+ * Wait for the pad response to be loaded into the 33-bit register
+ * of the adapter.
+ */
+
+ udelay(GC_N64_DELAY);
+
+/*
+ * Grab data (ignoring the last bit, which is a stop bit)
+ */
+
+ for (i = 0; i < GC_N64_LENGTH; i++) {
+ parport_write_data(gc->pd->port, GC_N64_POWER_R);
+ udelay(2);
+ data[i] = parport_read_status(gc->pd->port);
+ parport_write_data(gc->pd->port, GC_N64_POWER_R | GC_N64_CLOCK);
+ }
+
+/*
+ * We must wait 200 ms here for the controller to reinitialize before
+ * the next read request. No worries as long as gc_read is polled less
+ * frequently than this.
+ */
+
+}
+
+static void gc_n64_process_packet(struct gc *gc)
+{
+ unsigned char data[GC_N64_LENGTH];
+ struct input_dev *dev;
+ int i, j, s;
+ signed char x, y;
+
+ gc_n64_read_packet(gc, data);
+
+ for (i = 0; i < GC_MAX_DEVICES; i++) {
+
+ if (gc->pads[i].type != GC_N64)
+ continue;
+
+ dev = gc->pads[i].dev;
+ s = gc_status_bit[i];
+
+ if (s & ~(data[8] | data[9])) {
+
+ x = y = 0;
+
+ for (j = 0; j < 8; j++) {
+ if (data[23 - j] & s)
+ x |= 1 << j;
+ if (data[31 - j] & s)
+ y |= 1 << j;
+ }
+
+ input_report_abs(dev, ABS_X, x);
+ input_report_abs(dev, ABS_Y, -y);
+
+ input_report_abs(dev, ABS_HAT0X,
+ !(s & data[6]) - !(s & data[7]));
+ input_report_abs(dev, ABS_HAT0Y,
+ !(s & data[4]) - !(s & data[5]));
+
+ for (j = 0; j < 10; j++)
+ input_report_key(dev, gc_n64_btn[j],
+ s & data[gc_n64_bytes[j]]);
+
+ input_sync(dev);
+ }
+ }
+}
+
+static int gc_n64_play_effect(struct input_dev *dev, void *data,
+ struct ff_effect *effect)
+{
+ int i;
+ unsigned long flags;
+ struct gc *gc = input_get_drvdata(dev);
+ struct gc_subdev *sdev = data;
+ unsigned char target = 1 << sdev->idx; /* select desired pin */
+
+ if (effect->type == FF_RUMBLE) {
+ struct ff_rumble_effect *rumble = &effect->u.rumble;
+ unsigned int cmd =
+ rumble->strong_magnitude || rumble->weak_magnitude ?
+ GC_N64_CMD_01 : GC_N64_CMD_00;
+
+ local_irq_save(flags);
+
+ /* Init Rumble - 0x03, 0x80, 0x01, (34)0x80 */
+ gc_n64_send_command(gc, GC_N64_CMD_03, target);
+ gc_n64_send_command(gc, GC_N64_CMD_80, target);
+ gc_n64_send_command(gc, GC_N64_CMD_01, target);
+ for (i = 0; i < 32; i++)
+ gc_n64_send_command(gc, GC_N64_CMD_80, target);
+ gc_n64_send_stop_bit(gc, target);
+
+ udelay(GC_N64_DELAY);
+
+ /* Now start or stop it - 0x03, 0xc0, 0zx1b, (32)0x01/0x00 */
+ gc_n64_send_command(gc, GC_N64_CMD_03, target);
+ gc_n64_send_command(gc, GC_N64_CMD_c0, target);
+ gc_n64_send_command(gc, GC_N64_CMD_1b, target);
+ for (i = 0; i < 32; i++)
+ gc_n64_send_command(gc, cmd, target);
+ gc_n64_send_stop_bit(gc, target);
+
+ local_irq_restore(flags);
+
+ }
+
+ return 0;
+}
+
+static int __init gc_n64_init_ff(struct input_dev *dev, int i)
+{
+ struct gc_subdev *sdev;
+ int err;
+
+ sdev = kmalloc(sizeof(*sdev), GFP_KERNEL);
+ if (!sdev)
+ return -ENOMEM;
+
+ sdev->idx = i;
+
+ input_set_capability(dev, EV_FF, FF_RUMBLE);
+
+ err = input_ff_create_memless(dev, sdev, gc_n64_play_effect);
+ if (err) {
+ kfree(sdev);
+ return err;
+ }
+
+ return 0;
+}
+
+/*
+ * NES/SNES support.
+ */
+
+#define GC_NES_DELAY 6 /* Delay between bits - 6us */
+#define GC_NES_LENGTH 8 /* The NES pads use 8 bits of data */
+#define GC_SNES_LENGTH 12 /* The SNES true length is 16, but the
+ last 4 bits are unused */
+#define GC_SNESMOUSE_LENGTH 32 /* The SNES mouse uses 32 bits, the first
+ 16 bits are equivalent to a gamepad */
+
+#define GC_NES_POWER 0xfc
+#define GC_NES_CLOCK 0x01
+#define GC_NES_LATCH 0x02
+
+static const unsigned char gc_nes_bytes[] = { 0, 1, 2, 3 };
+static const unsigned char gc_snes_bytes[] = { 8, 0, 2, 3, 9, 1, 10, 11 };
+static const short gc_snes_btn[] = {
+ BTN_A, BTN_B, BTN_SELECT, BTN_START, BTN_X, BTN_Y, BTN_TL, BTN_TR
+};
+
+/*
+ * gc_nes_read_packet() reads a NES/SNES packet.
+ * Each pad uses one bit per byte. So all pads connected to
+ * this port are read in parallel.
+ */
+
+static void gc_nes_read_packet(struct gc *gc, int length, unsigned char *data)
+{
+ int i;
+
+ parport_write_data(gc->pd->port, GC_NES_POWER | GC_NES_CLOCK | GC_NES_LATCH);
+ udelay(GC_NES_DELAY * 2);
+ parport_write_data(gc->pd->port, GC_NES_POWER | GC_NES_CLOCK);
+
+ for (i = 0; i < length; i++) {
+ udelay(GC_NES_DELAY);
+ parport_write_data(gc->pd->port, GC_NES_POWER);
+ data[i] = parport_read_status(gc->pd->port) ^ 0x7f;
+ udelay(GC_NES_DELAY);
+ parport_write_data(gc->pd->port, GC_NES_POWER | GC_NES_CLOCK);
+ }
+}
+
+static void gc_nes_process_packet(struct gc *gc)
+{
+ unsigned char data[GC_SNESMOUSE_LENGTH];
+ struct gc_pad *pad;
+ struct input_dev *dev;
+ int i, j, s, len;
+ char x_rel, y_rel;
+
+ len = gc->pad_count[GC_SNESMOUSE] ? GC_SNESMOUSE_LENGTH :
+ (gc->pad_count[GC_SNES] ? GC_SNES_LENGTH : GC_NES_LENGTH);
+
+ gc_nes_read_packet(gc, len, data);
+
+ for (i = 0; i < GC_MAX_DEVICES; i++) {
+
+ pad = &gc->pads[i];
+ dev = pad->dev;
+ s = gc_status_bit[i];
+
+ switch (pad->type) {
+
+ case GC_NES:
+
+ input_report_abs(dev, ABS_X, !(s & data[6]) - !(s & data[7]));
+ input_report_abs(dev, ABS_Y, !(s & data[4]) - !(s & data[5]));
+
+ for (j = 0; j < 4; j++)
+ input_report_key(dev, gc_snes_btn[j],
+ s & data[gc_nes_bytes[j]]);
+ input_sync(dev);
+ break;
+
+ case GC_SNES:
+
+ input_report_abs(dev, ABS_X, !(s & data[6]) - !(s & data[7]));
+ input_report_abs(dev, ABS_Y, !(s & data[4]) - !(s & data[5]));
+
+ for (j = 0; j < 8; j++)
+ input_report_key(dev, gc_snes_btn[j],
+ s & data[gc_snes_bytes[j]]);
+ input_sync(dev);
+ break;
+
+ case GC_SNESMOUSE:
+ /*
+ * The 4 unused bits from SNES controllers appear
+ * to be ID bits so use them to make sure we are
+ * dealing with a mouse.
+ * gamepad is connected. This is important since
+ * my SNES gamepad sends 1's for bits 16-31, which
+ * cause the mouse pointer to quickly move to the
+ * upper left corner of the screen.
+ */
+ if (!(s & data[12]) && !(s & data[13]) &&
+ !(s & data[14]) && (s & data[15])) {
+ input_report_key(dev, BTN_LEFT, s & data[9]);
+ input_report_key(dev, BTN_RIGHT, s & data[8]);
+
+ x_rel = y_rel = 0;
+ for (j = 0; j < 7; j++) {
+ x_rel <<= 1;
+ if (data[25 + j] & s)
+ x_rel |= 1;
+
+ y_rel <<= 1;
+ if (data[17 + j] & s)
+ y_rel |= 1;
+ }
+
+ if (x_rel) {
+ if (data[24] & s)
+ x_rel = -x_rel;
+ input_report_rel(dev, REL_X, x_rel);
+ }
+
+ if (y_rel) {
+ if (data[16] & s)
+ y_rel = -y_rel;
+ input_report_rel(dev, REL_Y, y_rel);
+ }
+
+ input_sync(dev);
+ }
+ break;
+
+ default:
+ break;
+ }
+ }
+}
+
+/*
+ * Multisystem joystick support
+ */
+
+#define GC_MULTI_LENGTH 5 /* Multi system joystick packet length is 5 */
+#define GC_MULTI2_LENGTH 6 /* One more bit for one more button */
+
+/*
+ * gc_multi_read_packet() reads a Multisystem joystick packet.
+ */
+
+static void gc_multi_read_packet(struct gc *gc, int length, unsigned char *data)
+{
+ int i;
+
+ for (i = 0; i < length; i++) {
+ parport_write_data(gc->pd->port, ~(1 << i));
+ data[i] = parport_read_status(gc->pd->port) ^ 0x7f;
+ }
+}
+
+static void gc_multi_process_packet(struct gc *gc)
+{
+ unsigned char data[GC_MULTI2_LENGTH];
+ int data_len = gc->pad_count[GC_MULTI2] ? GC_MULTI2_LENGTH : GC_MULTI_LENGTH;
+ struct gc_pad *pad;
+ struct input_dev *dev;
+ int i, s;
+
+ gc_multi_read_packet(gc, data_len, data);
+
+ for (i = 0; i < GC_MAX_DEVICES; i++) {
+ pad = &gc->pads[i];
+ dev = pad->dev;
+ s = gc_status_bit[i];
+
+ switch (pad->type) {
+ case GC_MULTI2:
+ input_report_key(dev, BTN_THUMB, s & data[5]);
+ /* fall through */
+
+ case GC_MULTI:
+ input_report_abs(dev, ABS_X,
+ !(s & data[2]) - !(s & data[3]));
+ input_report_abs(dev, ABS_Y,
+ !(s & data[0]) - !(s & data[1]));
+ input_report_key(dev, BTN_TRIGGER, s & data[4]);
+ input_sync(dev);
+ break;
+
+ default:
+ break;
+ }
+ }
+}
+
+/*
+ * PSX support
+ *
+ * See documentation at:
+ * http://www.geocities.co.jp/Playtown/2004/psx/ps_eng.txt
+ * http://www.gamesx.com/controldata/psxcont/psxcont.htm
+ *
+ */
+
+#define GC_PSX_DELAY 25 /* 25 usec */
+#define GC_PSX_LENGTH 8 /* talk to the controller in bits */
+#define GC_PSX_BYTES 6 /* the maximum number of bytes to read off the controller */
+
+#define GC_PSX_MOUSE 1 /* Mouse */
+#define GC_PSX_NEGCON 2 /* NegCon */
+#define GC_PSX_NORMAL 4 /* Digital / Analog or Rumble in Digital mode */
+#define GC_PSX_ANALOG 5 /* Analog in Analog mode / Rumble in Green mode */
+#define GC_PSX_RUMBLE 7 /* Rumble in Red mode */
+
+#define GC_PSX_CLOCK 0x04 /* Pin 4 */
+#define GC_PSX_COMMAND 0x01 /* Pin 2 */
+#define GC_PSX_POWER 0xf8 /* Pins 5-9 */
+#define GC_PSX_SELECT 0x02 /* Pin 3 */
+
+#define GC_PSX_ID(x) ((x) >> 4) /* High nibble is device type */
+#define GC_PSX_LEN(x) (((x) & 0xf) << 1) /* Low nibble is length in bytes/2 */
+
+static int gc_psx_delay = GC_PSX_DELAY;
+module_param_named(psx_delay, gc_psx_delay, uint, 0);
+MODULE_PARM_DESC(psx_delay, "Delay when accessing Sony PSX controller (usecs)");
+
+static const short gc_psx_abs[] = {
+ ABS_X, ABS_Y, ABS_RX, ABS_RY, ABS_HAT0X, ABS_HAT0Y
+};
+static const short gc_psx_btn[] = {
+ BTN_TL, BTN_TR, BTN_TL2, BTN_TR2, BTN_A, BTN_B, BTN_X, BTN_Y,
+ BTN_START, BTN_SELECT, BTN_THUMBL, BTN_THUMBR
+};
+static const short gc_psx_ddr_btn[] = { BTN_0, BTN_1, BTN_2, BTN_3 };
+
+/*
+ * gc_psx_command() writes 8bit command and reads 8bit data from
+ * the psx pad.
+ */
+
+static void gc_psx_command(struct gc *gc, int b, unsigned char *data)
+{
+ struct parport *port = gc->pd->port;
+ int i, j, cmd, read;
+
+ memset(data, 0, GC_MAX_DEVICES);
+
+ for (i = 0; i < GC_PSX_LENGTH; i++, b >>= 1) {
+ cmd = (b & 1) ? GC_PSX_COMMAND : 0;
+ parport_write_data(port, cmd | GC_PSX_POWER);
+ udelay(gc_psx_delay);
+
+ read = parport_read_status(port) ^ 0x80;
+
+ for (j = 0; j < GC_MAX_DEVICES; j++) {
+ struct gc_pad *pad = &gc->pads[j];
+
+ if (pad->type == GC_PSX || pad->type == GC_DDR)
+ data[j] |= (read & gc_status_bit[j]) ? (1 << i) : 0;
+ }
+
+ parport_write_data(gc->pd->port, cmd | GC_PSX_CLOCK | GC_PSX_POWER);
+ udelay(gc_psx_delay);
+ }
+}
+
+/*
+ * gc_psx_read_packet() reads a whole psx packet and returns
+ * device identifier code.
+ */
+
+static void gc_psx_read_packet(struct gc *gc,
+ unsigned char data[GC_MAX_DEVICES][GC_PSX_BYTES],
+ unsigned char id[GC_MAX_DEVICES])
+{
+ int i, j, max_len = 0;
+ unsigned long flags;
+ unsigned char data2[GC_MAX_DEVICES];
+
+ /* Select pad */
+ parport_write_data(gc->pd->port, GC_PSX_CLOCK | GC_PSX_SELECT | GC_PSX_POWER);
+ udelay(gc_psx_delay);
+ /* Deselect, begin command */
+ parport_write_data(gc->pd->port, GC_PSX_CLOCK | GC_PSX_POWER);
+ udelay(gc_psx_delay);
+
+ local_irq_save(flags);
+
+ gc_psx_command(gc, 0x01, data2); /* Access pad */
+ gc_psx_command(gc, 0x42, id); /* Get device ids */
+ gc_psx_command(gc, 0, data2); /* Dump status */
+
+ /* Find the longest pad */
+ for (i = 0; i < GC_MAX_DEVICES; i++) {
+ struct gc_pad *pad = &gc->pads[i];
+
+ if ((pad->type == GC_PSX || pad->type == GC_DDR) &&
+ GC_PSX_LEN(id[i]) > max_len &&
+ GC_PSX_LEN(id[i]) <= GC_PSX_BYTES) {
+ max_len = GC_PSX_LEN(id[i]);
+ }
+ }
+
+ /* Read in all the data */
+ for (i = 0; i < max_len; i++) {
+ gc_psx_command(gc, 0, data2);
+ for (j = 0; j < GC_MAX_DEVICES; j++)
+ data[j][i] = data2[j];
+ }
+
+ local_irq_restore(flags);
+
+ parport_write_data(gc->pd->port, GC_PSX_CLOCK | GC_PSX_SELECT | GC_PSX_POWER);
+
+ /* Set id's to the real value */
+ for (i = 0; i < GC_MAX_DEVICES; i++)
+ id[i] = GC_PSX_ID(id[i]);
+}
+
+static void gc_psx_report_one(struct gc_pad *pad, unsigned char psx_type,
+ unsigned char *data)
+{
+ struct input_dev *dev = pad->dev;
+ int i;
+
+ switch (psx_type) {
+
+ case GC_PSX_RUMBLE:
+
+ input_report_key(dev, BTN_THUMBL, ~data[0] & 0x04);
+ input_report_key(dev, BTN_THUMBR, ~data[0] & 0x02);
+
+ case GC_PSX_NEGCON:
+ case GC_PSX_ANALOG:
+
+ if (pad->type == GC_DDR) {
+ for (i = 0; i < 4; i++)
+ input_report_key(dev, gc_psx_ddr_btn[i],
+ ~data[0] & (0x10 << i));
+ } else {
+ for (i = 0; i < 4; i++)
+ input_report_abs(dev, gc_psx_abs[i + 2],
+ data[i + 2]);
+
+ input_report_abs(dev, ABS_X,
+ !!(data[0] & 0x80) * 128 + !(data[0] & 0x20) * 127);
+ input_report_abs(dev, ABS_Y,
+ !!(data[0] & 0x10) * 128 + !(data[0] & 0x40) * 127);
+ }
+
+ for (i = 0; i < 8; i++)
+ input_report_key(dev, gc_psx_btn[i], ~data[1] & (1 << i));
+
+ input_report_key(dev, BTN_START, ~data[0] & 0x08);
+ input_report_key(dev, BTN_SELECT, ~data[0] & 0x01);
+
+ input_sync(dev);
+
+ break;
+
+ case GC_PSX_NORMAL:
+
+ if (pad->type == GC_DDR) {
+ for (i = 0; i < 4; i++)
+ input_report_key(dev, gc_psx_ddr_btn[i],
+ ~data[0] & (0x10 << i));
+ } else {
+ input_report_abs(dev, ABS_X,
+ !!(data[0] & 0x80) * 128 + !(data[0] & 0x20) * 127);
+ input_report_abs(dev, ABS_Y,
+ !!(data[0] & 0x10) * 128 + !(data[0] & 0x40) * 127);
+
+ /*
+ * For some reason if the extra axes are left unset
+ * they drift.
+ * for (i = 0; i < 4; i++)
+ input_report_abs(dev, gc_psx_abs[i + 2], 128);
+ * This needs to be debugged properly,
+ * maybe fuzz processing needs to be done
+ * in input_sync()
+ * --vojtech
+ */
+ }
+
+ for (i = 0; i < 8; i++)
+ input_report_key(dev, gc_psx_btn[i], ~data[1] & (1 << i));
+
+ input_report_key(dev, BTN_START, ~data[0] & 0x08);
+ input_report_key(dev, BTN_SELECT, ~data[0] & 0x01);
+
+ input_sync(dev);
+
+ break;
+
+ default: /* not a pad, ignore */
+ break;
+ }
+}
+
+static void gc_psx_process_packet(struct gc *gc)
+{
+ unsigned char data[GC_MAX_DEVICES][GC_PSX_BYTES];
+ unsigned char id[GC_MAX_DEVICES];
+ struct gc_pad *pad;
+ int i;
+
+ gc_psx_read_packet(gc, data, id);
+
+ for (i = 0; i < GC_MAX_DEVICES; i++) {
+ pad = &gc->pads[i];
+ if (pad->type == GC_PSX || pad->type == GC_DDR)
+ gc_psx_report_one(pad, id[i], data[i]);
+ }
+}
+
+/*
+ * gc_timer() initiates reads of console pads data.
+ */
+
+static void gc_timer(unsigned long private)
+{
+ struct gc *gc = (void *) private;
+
+/*
+ * N64 pads - must be read first, any read confuses them for 200 us
+ */
+
+ if (gc->pad_count[GC_N64])
+ gc_n64_process_packet(gc);
+
+/*
+ * NES and SNES pads or mouse
+ */
+
+ if (gc->pad_count[GC_NES] ||
+ gc->pad_count[GC_SNES] ||
+ gc->pad_count[GC_SNESMOUSE]) {
+ gc_nes_process_packet(gc);
+ }
+
+/*
+ * Multi and Multi2 joysticks
+ */
+
+ if (gc->pad_count[GC_MULTI] || gc->pad_count[GC_MULTI2])
+ gc_multi_process_packet(gc);
+
+/*
+ * PSX controllers
+ */
+
+ if (gc->pad_count[GC_PSX] || gc->pad_count[GC_DDR])
+ gc_psx_process_packet(gc);
+
+ mod_timer(&gc->timer, jiffies + GC_REFRESH_TIME);
+}
+
+static int gc_open(struct input_dev *dev)
+{
+ struct gc *gc = input_get_drvdata(dev);
+ int err;
+
+ err = mutex_lock_interruptible(&gc->mutex);
+ if (err)
+ return err;
+
+ if (!gc->used++) {
+ parport_claim(gc->pd);
+ parport_write_control(gc->pd->port, 0x04);
+ mod_timer(&gc->timer, jiffies + GC_REFRESH_TIME);
+ }
+
+ mutex_unlock(&gc->mutex);
+ return 0;
+}
+
+static void gc_close(struct input_dev *dev)
+{
+ struct gc *gc = input_get_drvdata(dev);
+
+ mutex_lock(&gc->mutex);
+ if (!--gc->used) {
+ del_timer_sync(&gc->timer);
+ parport_write_control(gc->pd->port, 0x00);
+ parport_release(gc->pd);
+ }
+ mutex_unlock(&gc->mutex);
+}
+
+static int __init gc_setup_pad(struct gc *gc, int idx, int pad_type)
+{
+ struct gc_pad *pad = &gc->pads[idx];
+ struct input_dev *input_dev;
+ int i;
+ int err;
+
+ if (pad_type < 1 || pad_type >= GC_MAX) {
+ pr_err("Pad type %d unknown\n", pad_type);
+ return -EINVAL;
+ }
+
+ pad->dev = input_dev = input_allocate_device();
+ if (!input_dev) {
+ pr_err("Not enough memory for input device\n");
+ return -ENOMEM;
+ }
+
+ pad->type = pad_type;
+
+ snprintf(pad->phys, sizeof(pad->phys),
+ "%s/input%d", gc->pd->port->name, idx);
+
+ input_dev->name = gc_names[pad_type];
+ input_dev->phys = pad->phys;
+ input_dev->id.bustype = BUS_PARPORT;
+ input_dev->id.vendor = 0x0001;
+ input_dev->id.product = pad_type;
+ input_dev->id.version = 0x0100;
+
+ input_set_drvdata(input_dev, gc);
+
+ input_dev->open = gc_open;
+ input_dev->close = gc_close;
+
+ if (pad_type != GC_SNESMOUSE) {
+ input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
+
+ for (i = 0; i < 2; i++)
+ input_set_abs_params(input_dev, ABS_X + i, -1, 1, 0, 0);
+ } else
+ input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL);
+
+ gc->pad_count[pad_type]++;
+
+ switch (pad_type) {
+
+ case GC_N64:
+ for (i = 0; i < 10; i++)
+ __set_bit(gc_n64_btn[i], input_dev->keybit);
+
+ for (i = 0; i < 2; i++) {
+ input_set_abs_params(input_dev, ABS_X + i, -127, 126, 0, 2);
+ input_set_abs_params(input_dev, ABS_HAT0X + i, -1, 1, 0, 0);
+ }
+
+ err = gc_n64_init_ff(input_dev, idx);
+ if (err) {
+ pr_warning("Failed to initiate rumble for N64 device %d\n", idx);
+ goto err_free_dev;
+ }
+
+ break;
+
+ case GC_SNESMOUSE:
+ __set_bit(BTN_LEFT, input_dev->keybit);
+ __set_bit(BTN_RIGHT, input_dev->keybit);
+ __set_bit(REL_X, input_dev->relbit);
+ __set_bit(REL_Y, input_dev->relbit);
+ break;
+
+ case GC_SNES:
+ for (i = 4; i < 8; i++)
+ __set_bit(gc_snes_btn[i], input_dev->keybit);
+ case GC_NES:
+ for (i = 0; i < 4; i++)
+ __set_bit(gc_snes_btn[i], input_dev->keybit);
+ break;
+
+ case GC_MULTI2:
+ __set_bit(BTN_THUMB, input_dev->keybit);
+ case GC_MULTI:
+ __set_bit(BTN_TRIGGER, input_dev->keybit);
+ break;
+
+ case GC_PSX:
+ for (i = 0; i < 6; i++)
+ input_set_abs_params(input_dev,
+ gc_psx_abs[i], 4, 252, 0, 2);
+ for (i = 0; i < 12; i++)
+ __set_bit(gc_psx_btn[i], input_dev->keybit);
+
+ break;
+
+ case GC_DDR:
+ for (i = 0; i < 4; i++)
+ __set_bit(gc_psx_ddr_btn[i], input_dev->keybit);
+ for (i = 0; i < 12; i++)
+ __set_bit(gc_psx_btn[i], input_dev->keybit);
+
+ break;
+ }
+
+ err = input_register_device(pad->dev);
+ if (err)
+ goto err_free_dev;
+
+ return 0;
+
+err_free_dev:
+ input_free_device(pad->dev);
+ pad->dev = NULL;
+ return err;
+}
+
+static struct gc __init *gc_probe(int parport, int *pads, int n_pads)
+{
+ struct gc *gc;
+ struct parport *pp;
+ struct pardevice *pd;
+ int i;
+ int count = 0;
+ int err;
+
+ pp = parport_find_number(parport);
+ if (!pp) {
+ pr_err("no such parport %d\n", parport);
+ err = -EINVAL;
+ goto err_out;
+ }
+
+ pd = parport_register_device(pp, "gamecon", NULL, NULL, NULL, PARPORT_DEV_EXCL, NULL);
+ if (!pd) {
+ pr_err("parport busy already - lp.o loaded?\n");
+ err = -EBUSY;
+ goto err_put_pp;
+ }
+
+ gc = kzalloc(sizeof(struct gc), GFP_KERNEL);
+ if (!gc) {
+ pr_err("Not enough memory\n");
+ err = -ENOMEM;
+ goto err_unreg_pardev;
+ }
+
+ mutex_init(&gc->mutex);
+ gc->pd = pd;
+ setup_timer(&gc->timer, gc_timer, (long) gc);
+
+ for (i = 0; i < n_pads && i < GC_MAX_DEVICES; i++) {
+ if (!pads[i])
+ continue;
+
+ err = gc_setup_pad(gc, i, pads[i]);
+ if (err)
+ goto err_unreg_devs;
+
+ count++;
+ }
+
+ if (count == 0) {
+ pr_err("No valid devices specified\n");
+ err = -EINVAL;
+ goto err_free_gc;
+ }
+
+ parport_put_port(pp);
+ return gc;
+
+ err_unreg_devs:
+ while (--i >= 0)
+ if (gc->pads[i].dev)
+ input_unregister_device(gc->pads[i].dev);
+ err_free_gc:
+ kfree(gc);
+ err_unreg_pardev:
+ parport_unregister_device(pd);
+ err_put_pp:
+ parport_put_port(pp);
+ err_out:
+ return ERR_PTR(err);
+}
+
+static void gc_remove(struct gc *gc)
+{
+ int i;
+
+ for (i = 0; i < GC_MAX_DEVICES; i++)
+ if (gc->pads[i].dev)
+ input_unregister_device(gc->pads[i].dev);
+ parport_unregister_device(gc->pd);
+ kfree(gc);
+}
+
+static int __init gc_init(void)
+{
+ int i;
+ int have_dev = 0;
+ int err = 0;
+
+ for (i = 0; i < GC_MAX_PORTS; i++) {
+ if (gc_cfg[i].nargs == 0 || gc_cfg[i].args[0] < 0)
+ continue;
+
+ if (gc_cfg[i].nargs < 2) {
+ pr_err("at least one device must be specified\n");
+ err = -EINVAL;
+ break;
+ }
+
+ gc_base[i] = gc_probe(gc_cfg[i].args[0],
+ gc_cfg[i].args + 1, gc_cfg[i].nargs - 1);
+ if (IS_ERR(gc_base[i])) {
+ err = PTR_ERR(gc_base[i]);
+ break;
+ }
+
+ have_dev = 1;
+ }
+
+ if (err) {
+ while (--i >= 0)
+ if (gc_base[i])
+ gc_remove(gc_base[i]);
+ return err;
+ }
+
+ return have_dev ? 0 : -ENODEV;
+}
+
+static void __exit gc_exit(void)
+{
+ int i;
+
+ for (i = 0; i < GC_MAX_PORTS; i++)
+ if (gc_base[i])
+ gc_remove(gc_base[i]);
+}
+
+module_init(gc_init);
+module_exit(gc_exit);
diff --git a/drivers/input/joystick/gf2k.c b/drivers/input/joystick/gf2k.c
new file mode 100644
index 0000000..0536b1b
--- /dev/null
+++ b/drivers/input/joystick/gf2k.c
@@ -0,0 +1,387 @@
+/*
+ * Copyright (c) 1998-2001 Vojtech Pavlik
+ */
+
+/*
+ * Genius Flight 2000 joystick driver for Linux
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * Should you need to contact me, the author, you can do so either by
+ * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
+ * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
+ */
+
+#include <linux/delay.h>
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/input.h>
+#include <linux/gameport.h>
+#include <linux/jiffies.h>
+
+#define DRIVER_DESC "Genius Flight 2000 joystick driver"
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+#define GF2K_START 400 /* The time we wait for the first bit [400 us] */
+#define GF2K_STROBE 40 /* The time we wait for the first bit [40 us] */
+#define GF2K_TIMEOUT 4 /* Wait for everything to settle [4 ms] */
+#define GF2K_LENGTH 80 /* Max number of triplets in a packet */
+
+/*
+ * Genius joystick ids ...
+ */
+
+#define GF2K_ID_G09 1
+#define GF2K_ID_F30D 2
+#define GF2K_ID_F30 3
+#define GF2K_ID_F31D 4
+#define GF2K_ID_F305 5
+#define GF2K_ID_F23P 6
+#define GF2K_ID_F31 7
+#define GF2K_ID_MAX 7
+
+static char gf2k_length[] = { 40, 40, 40, 40, 40, 40, 40, 40 };
+static char gf2k_hat_to_axis[][2] = {{ 0, 0}, { 0,-1}, { 1,-1}, { 1, 0}, { 1, 1}, { 0, 1}, {-1, 1}, {-1, 0}, {-1,-1}};
+
+static char *gf2k_names[] = {"", "Genius G-09D", "Genius F-30D", "Genius F-30", "Genius MaxFighter F-31D",
+ "Genius F-30-5", "Genius Flight2000 F-23", "Genius F-31"};
+static unsigned char gf2k_hats[] = { 0, 2, 0, 0, 2, 0, 2, 0 };
+static unsigned char gf2k_axes[] = { 0, 2, 0, 0, 4, 0, 4, 0 };
+static unsigned char gf2k_joys[] = { 0, 0, 0, 0,10, 0, 8, 0 };
+static unsigned char gf2k_pads[] = { 0, 6, 0, 0, 0, 0, 0, 0 };
+static unsigned char gf2k_lens[] = { 0,18, 0, 0,18, 0,18, 0 };
+
+static unsigned char gf2k_abs[] = { ABS_X, ABS_Y, ABS_THROTTLE, ABS_RUDDER, ABS_GAS, ABS_BRAKE };
+static short gf2k_btn_joy[] = { BTN_TRIGGER, BTN_THUMB, BTN_TOP, BTN_TOP2, BTN_BASE, BTN_BASE2, BTN_BASE3, BTN_BASE4 };
+static short gf2k_btn_pad[] = { BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z, BTN_TL, BTN_TR, BTN_TL2, BTN_TR2, BTN_START, BTN_SELECT };
+
+
+static short gf2k_seq_reset[] = { 240, 340, 0 };
+static short gf2k_seq_digital[] = { 590, 320, 860, 0 };
+
+struct gf2k {
+ struct gameport *gameport;
+ struct input_dev *dev;
+ int reads;
+ int bads;
+ unsigned char id;
+ unsigned char length;
+ char phys[32];
+};
+
+/*
+ * gf2k_read_packet() reads a Genius Flight2000 packet.
+ */
+
+static int gf2k_read_packet(struct gameport *gameport, int length, char *data)
+{
+ unsigned char u, v;
+ int i;
+ unsigned int t, p;
+ unsigned long flags;
+
+ t = gameport_time(gameport, GF2K_START);
+ p = gameport_time(gameport, GF2K_STROBE);
+
+ i = 0;
+
+ local_irq_save(flags);
+
+ gameport_trigger(gameport);
+ v = gameport_read(gameport);
+
+ while (t > 0 && i < length) {
+ t--; u = v;
+ v = gameport_read(gameport);
+ if (v & ~u & 0x10) {
+ data[i++] = v >> 5;
+ t = p;
+ }
+ }
+
+ local_irq_restore(flags);
+
+ return i;
+}
+
+/*
+ * gf2k_trigger_seq() initializes a Genius Flight2000 joystick
+ * into digital mode.
+ */
+
+static void gf2k_trigger_seq(struct gameport *gameport, short *seq)
+{
+
+ unsigned long flags;
+ int i, t;
+
+ local_irq_save(flags);
+
+ i = 0;
+ do {
+ gameport_trigger(gameport);
+ t = gameport_time(gameport, GF2K_TIMEOUT * 1000);
+ while ((gameport_read(gameport) & 1) && t) t--;
+ udelay(seq[i]);
+ } while (seq[++i]);
+
+ gameport_trigger(gameport);
+
+ local_irq_restore(flags);
+}
+
+/*
+ * js_sw_get_bits() composes bits from the triplet buffer into a __u64.
+ * Parameter 'pos' is bit number inside packet where to start at, 'num' is number
+ * of bits to be read, 'shift' is offset in the resulting __u64 to start at, bits
+ * is number of bits per triplet.
+ */
+
+#define GB(p,n,s) gf2k_get_bits(data, p, n, s)
+
+static int gf2k_get_bits(unsigned char *buf, int pos, int num, int shift)
+{
+ __u64 data = 0;
+ int i;
+
+ for (i = 0; i < num / 3 + 2; i++)
+ data |= buf[pos / 3 + i] << (i * 3);
+ data >>= pos % 3;
+ data &= (1 << num) - 1;
+ data <<= shift;
+
+ return data;
+}
+
+static void gf2k_read(struct gf2k *gf2k, unsigned char *data)
+{
+ struct input_dev *dev = gf2k->dev;
+ int i, t;
+
+ for (i = 0; i < 4 && i < gf2k_axes[gf2k->id]; i++)
+ input_report_abs(dev, gf2k_abs[i], GB(i<<3,8,0) | GB(i+46,1,8) | GB(i+50,1,9));
+
+ for (i = 0; i < 2 && i < gf2k_axes[gf2k->id] - 4; i++)
+ input_report_abs(dev, gf2k_abs[i], GB(i*9+60,8,0) | GB(i+54,1,9));
+
+ t = GB(40,4,0);
+
+ for (i = 0; i < gf2k_hats[gf2k->id]; i++)
+ input_report_abs(dev, ABS_HAT0X + i, gf2k_hat_to_axis[t][i]);
+
+ t = GB(44,2,0) | GB(32,8,2) | GB(78,2,10);
+
+ for (i = 0; i < gf2k_joys[gf2k->id]; i++)
+ input_report_key(dev, gf2k_btn_joy[i], (t >> i) & 1);
+
+ for (i = 0; i < gf2k_pads[gf2k->id]; i++)
+ input_report_key(dev, gf2k_btn_pad[i], (t >> i) & 1);
+
+ input_sync(dev);
+}
+
+/*
+ * gf2k_poll() reads and analyzes Genius joystick data.
+ */
+
+static void gf2k_poll(struct gameport *gameport)
+{
+ struct gf2k *gf2k = gameport_get_drvdata(gameport);
+ unsigned char data[GF2K_LENGTH];
+
+ gf2k->reads++;
+
+ if (gf2k_read_packet(gf2k->gameport, gf2k_length[gf2k->id], data) < gf2k_length[gf2k->id])
+ gf2k->bads++;
+ else
+ gf2k_read(gf2k, data);
+}
+
+static int gf2k_open(struct input_dev *dev)
+{
+ struct gf2k *gf2k = input_get_drvdata(dev);
+
+ gameport_start_polling(gf2k->gameport);
+ return 0;
+}
+
+static void gf2k_close(struct input_dev *dev)
+{
+ struct gf2k *gf2k = input_get_drvdata(dev);
+
+ gameport_stop_polling(gf2k->gameport);
+}
+
+/*
+ * gf2k_connect() probes for Genius id joysticks.
+ */
+
+static int gf2k_connect(struct gameport *gameport, struct gameport_driver *drv)
+{
+ struct gf2k *gf2k;
+ struct input_dev *input_dev;
+ unsigned char data[GF2K_LENGTH];
+ int i, err;
+
+ gf2k = kzalloc(sizeof(struct gf2k), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!gf2k || !input_dev) {
+ err = -ENOMEM;
+ goto fail1;
+ }
+
+ gf2k->gameport = gameport;
+ gf2k->dev = input_dev;
+
+ gameport_set_drvdata(gameport, gf2k);
+
+ err = gameport_open(gameport, drv, GAMEPORT_MODE_RAW);
+ if (err)
+ goto fail1;
+
+ gf2k_trigger_seq(gameport, gf2k_seq_reset);
+
+ msleep(GF2K_TIMEOUT);
+
+ gf2k_trigger_seq(gameport, gf2k_seq_digital);
+
+ msleep(GF2K_TIMEOUT);
+
+ if (gf2k_read_packet(gameport, GF2K_LENGTH, data) < 12) {
+ err = -ENODEV;
+ goto fail2;
+ }
+
+ if (!(gf2k->id = GB(7,2,0) | GB(3,3,2) | GB(0,3,5))) {
+ err = -ENODEV;
+ goto fail2;
+ }
+
+#ifdef RESET_WORKS
+ if ((gf2k->id != (GB(19,2,0) | GB(15,3,2) | GB(12,3,5))) &&
+ (gf2k->id != (GB(31,2,0) | GB(27,3,2) | GB(24,3,5)))) {
+ err = -ENODEV;
+ goto fail2;
+ }
+#else
+ gf2k->id = 6;
+#endif
+
+ if (gf2k->id > GF2K_ID_MAX || !gf2k_axes[gf2k->id]) {
+ printk(KERN_WARNING "gf2k.c: Not yet supported joystick on %s. [id: %d type:%s]\n",
+ gameport->phys, gf2k->id, gf2k->id > GF2K_ID_MAX ? "Unknown" : gf2k_names[gf2k->id]);
+ err = -ENODEV;
+ goto fail2;
+ }
+
+ gameport_set_poll_handler(gameport, gf2k_poll);
+ gameport_set_poll_interval(gameport, 20);
+
+ snprintf(gf2k->phys, sizeof(gf2k->phys), "%s/input0", gameport->phys);
+
+ gf2k->length = gf2k_lens[gf2k->id];
+
+ input_dev->name = gf2k_names[gf2k->id];
+ input_dev->phys = gf2k->phys;
+ input_dev->id.bustype = BUS_GAMEPORT;
+ input_dev->id.vendor = GAMEPORT_ID_VENDOR_GENIUS;
+ input_dev->id.product = gf2k->id;
+ input_dev->id.version = 0x0100;
+ input_dev->dev.parent = &gameport->dev;
+
+ input_set_drvdata(input_dev, gf2k);
+
+ input_dev->open = gf2k_open;
+ input_dev->close = gf2k_close;
+
+ input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
+
+ for (i = 0; i < gf2k_axes[gf2k->id]; i++)
+ set_bit(gf2k_abs[i], input_dev->absbit);
+
+ for (i = 0; i < gf2k_hats[gf2k->id]; i++)
+ input_set_abs_params(input_dev, ABS_HAT0X + i, -1, 1, 0, 0);
+
+ for (i = 0; i < gf2k_joys[gf2k->id]; i++)
+ set_bit(gf2k_btn_joy[i], input_dev->keybit);
+
+ for (i = 0; i < gf2k_pads[gf2k->id]; i++)
+ set_bit(gf2k_btn_pad[i], input_dev->keybit);
+
+ gf2k_read_packet(gameport, gf2k->length, data);
+ gf2k_read(gf2k, data);
+
+ for (i = 0; i < gf2k_axes[gf2k->id]; i++) {
+ int max = i < 2 ?
+ input_abs_get_val(input_dev, gf2k_abs[i]) * 2 :
+ input_abs_get_val(input_dev, gf2k_abs[0]) +
+ input_abs_get_val(input_dev, gf2k_abs[1]);
+ int flat = i < 2 ? 24 : 0;
+
+ input_set_abs_params(input_dev, gf2k_abs[i],
+ 32, max - 32, 8, flat);
+ }
+
+ err = input_register_device(gf2k->dev);
+ if (err)
+ goto fail2;
+
+ return 0;
+
+ fail2: gameport_close(gameport);
+ fail1: gameport_set_drvdata(gameport, NULL);
+ input_free_device(input_dev);
+ kfree(gf2k);
+ return err;
+}
+
+static void gf2k_disconnect(struct gameport *gameport)
+{
+ struct gf2k *gf2k = gameport_get_drvdata(gameport);
+
+ input_unregister_device(gf2k->dev);
+ gameport_close(gameport);
+ gameport_set_drvdata(gameport, NULL);
+ kfree(gf2k);
+}
+
+static struct gameport_driver gf2k_drv = {
+ .driver = {
+ .name = "gf2k",
+ },
+ .description = DRIVER_DESC,
+ .connect = gf2k_connect,
+ .disconnect = gf2k_disconnect,
+};
+
+static int __init gf2k_init(void)
+{
+ return gameport_register_driver(&gf2k_drv);
+}
+
+static void __exit gf2k_exit(void)
+{
+ gameport_unregister_driver(&gf2k_drv);
+}
+
+module_init(gf2k_init);
+module_exit(gf2k_exit);
diff --git a/drivers/input/joystick/grip.c b/drivers/input/joystick/grip.c
new file mode 100644
index 0000000..fc55899
--- /dev/null
+++ b/drivers/input/joystick/grip.c
@@ -0,0 +1,438 @@
+/*
+ * Copyright (c) 1998-2001 Vojtech Pavlik
+ */
+
+/*
+ * Gravis/Kensington GrIP protocol joystick and gamepad driver for Linux
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * Should you need to contact me, the author, you can do so either by
+ * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
+ * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/gameport.h>
+#include <linux/input.h>
+#include <linux/jiffies.h>
+
+#define DRIVER_DESC "Gravis GrIP protocol joystick driver"
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+#define GRIP_MODE_GPP 1
+#define GRIP_MODE_BD 2
+#define GRIP_MODE_XT 3
+#define GRIP_MODE_DC 4
+
+#define GRIP_LENGTH_GPP 24
+#define GRIP_STROBE_GPP 200 /* 200 us */
+#define GRIP_LENGTH_XT 4
+#define GRIP_STROBE_XT 64 /* 64 us */
+#define GRIP_MAX_CHUNKS_XT 10
+#define GRIP_MAX_BITS_XT 30
+
+struct grip {
+ struct gameport *gameport;
+ struct input_dev *dev[2];
+ unsigned char mode[2];
+ int reads;
+ int bads;
+ char phys[2][32];
+};
+
+static int grip_btn_gpp[] = { BTN_START, BTN_SELECT, BTN_TR2, BTN_Y, 0, BTN_TL2, BTN_A, BTN_B, BTN_X, 0, BTN_TL, BTN_TR, -1 };
+static int grip_btn_bd[] = { BTN_THUMB, BTN_THUMB2, BTN_TRIGGER, BTN_TOP, BTN_BASE, -1 };
+static int grip_btn_xt[] = { BTN_TRIGGER, BTN_THUMB, BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z, BTN_SELECT, BTN_START, BTN_MODE, -1 };
+static int grip_btn_dc[] = { BTN_TRIGGER, BTN_THUMB, BTN_TOP, BTN_TOP2, BTN_BASE, BTN_BASE2, BTN_BASE3, BTN_BASE4, BTN_BASE5, -1 };
+
+static int grip_abs_gpp[] = { ABS_X, ABS_Y, -1 };
+static int grip_abs_bd[] = { ABS_X, ABS_Y, ABS_THROTTLE, ABS_HAT0X, ABS_HAT0Y, -1 };
+static int grip_abs_xt[] = { ABS_X, ABS_Y, ABS_BRAKE, ABS_GAS, ABS_THROTTLE, ABS_HAT0X, ABS_HAT0Y, ABS_HAT1X, ABS_HAT1Y, -1 };
+static int grip_abs_dc[] = { ABS_X, ABS_Y, ABS_RX, ABS_RY, ABS_THROTTLE, ABS_HAT0X, ABS_HAT0Y, -1 };
+
+static char *grip_name[] = { NULL, "Gravis GamePad Pro", "Gravis Blackhawk Digital",
+ "Gravis Xterminator Digital", "Gravis Xterminator DualControl" };
+static int *grip_abs[] = { NULL, grip_abs_gpp, grip_abs_bd, grip_abs_xt, grip_abs_dc };
+static int *grip_btn[] = { NULL, grip_btn_gpp, grip_btn_bd, grip_btn_xt, grip_btn_dc };
+static char grip_anx[] = { 0, 0, 3, 5, 5 };
+static char grip_cen[] = { 0, 0, 2, 2, 4 };
+
+/*
+ * grip_gpp_read_packet() reads a Gravis GamePad Pro packet.
+ */
+
+static int grip_gpp_read_packet(struct gameport *gameport, int shift, unsigned int *data)
+{
+ unsigned long flags;
+ unsigned char u, v;
+ unsigned int t;
+ int i;
+
+ int strobe = gameport_time(gameport, GRIP_STROBE_GPP);
+
+ data[0] = 0;
+ t = strobe;
+ i = 0;
+
+ local_irq_save(flags);
+
+ v = gameport_read(gameport) >> shift;
+
+ do {
+ t--;
+ u = v; v = (gameport_read(gameport) >> shift) & 3;
+ if (~v & u & 1) {
+ data[0] |= (v >> 1) << i++;
+ t = strobe;
+ }
+ } while (i < GRIP_LENGTH_GPP && t > 0);
+
+ local_irq_restore(flags);
+
+ if (i < GRIP_LENGTH_GPP) return -1;
+
+ for (i = 0; i < GRIP_LENGTH_GPP && (data[0] & 0xfe4210) ^ 0x7c0000; i++)
+ data[0] = data[0] >> 1 | (data[0] & 1) << (GRIP_LENGTH_GPP - 1);
+
+ return -(i == GRIP_LENGTH_GPP);
+}
+
+/*
+ * grip_xt_read_packet() reads a Gravis Xterminator packet.
+ */
+
+static int grip_xt_read_packet(struct gameport *gameport, int shift, unsigned int *data)
+{
+ unsigned int i, j, buf, crc;
+ unsigned char u, v, w;
+ unsigned long flags;
+ unsigned int t;
+ char status;
+
+ int strobe = gameport_time(gameport, GRIP_STROBE_XT);
+
+ data[0] = data[1] = data[2] = data[3] = 0;
+ status = buf = i = j = 0;
+ t = strobe;
+
+ local_irq_save(flags);
+
+ v = w = (gameport_read(gameport) >> shift) & 3;
+
+ do {
+ t--;
+ u = (gameport_read(gameport) >> shift) & 3;
+
+ if (u ^ v) {
+
+ if ((u ^ v) & 1) {
+ buf = (buf << 1) | (u >> 1);
+ t = strobe;
+ i++;
+ } else
+
+ if ((((u ^ v) & (v ^ w)) >> 1) & ~(u | v | w) & 1) {
+ if (i == 20) {
+ crc = buf ^ (buf >> 7) ^ (buf >> 14);
+ if (!((crc ^ (0x25cb9e70 >> ((crc >> 2) & 0x1c))) & 0xf)) {
+ data[buf >> 18] = buf >> 4;
+ status |= 1 << (buf >> 18);
+ }
+ j++;
+ }
+ t = strobe;
+ buf = 0;
+ i = 0;
+ }
+ w = v;
+ v = u;
+ }
+
+ } while (status != 0xf && i < GRIP_MAX_BITS_XT && j < GRIP_MAX_CHUNKS_XT && t > 0);
+
+ local_irq_restore(flags);
+
+ return -(status != 0xf);
+}
+
+/*
+ * grip_timer() repeatedly polls the joysticks and generates events.
+ */
+
+static void grip_poll(struct gameport *gameport)
+{
+ struct grip *grip = gameport_get_drvdata(gameport);
+ unsigned int data[GRIP_LENGTH_XT];
+ struct input_dev *dev;
+ int i, j;
+
+ for (i = 0; i < 2; i++) {
+
+ dev = grip->dev[i];
+ if (!dev)
+ continue;
+
+ grip->reads++;
+
+ switch (grip->mode[i]) {
+
+ case GRIP_MODE_GPP:
+
+ if (grip_gpp_read_packet(grip->gameport, (i << 1) + 4, data)) {
+ grip->bads++;
+ break;
+ }
+
+ input_report_abs(dev, ABS_X, ((*data >> 15) & 1) - ((*data >> 16) & 1));
+ input_report_abs(dev, ABS_Y, ((*data >> 13) & 1) - ((*data >> 12) & 1));
+
+ for (j = 0; j < 12; j++)
+ if (grip_btn_gpp[j])
+ input_report_key(dev, grip_btn_gpp[j], (*data >> j) & 1);
+
+ break;
+
+ case GRIP_MODE_BD:
+
+ if (grip_xt_read_packet(grip->gameport, (i << 1) + 4, data)) {
+ grip->bads++;
+ break;
+ }
+
+ input_report_abs(dev, ABS_X, (data[0] >> 2) & 0x3f);
+ input_report_abs(dev, ABS_Y, 63 - ((data[0] >> 8) & 0x3f));
+ input_report_abs(dev, ABS_THROTTLE, (data[2] >> 8) & 0x3f);
+
+ input_report_abs(dev, ABS_HAT0X, ((data[2] >> 1) & 1) - ( data[2] & 1));
+ input_report_abs(dev, ABS_HAT0Y, ((data[2] >> 2) & 1) - ((data[2] >> 3) & 1));
+
+ for (j = 0; j < 5; j++)
+ input_report_key(dev, grip_btn_bd[j], (data[3] >> (j + 4)) & 1);
+
+ break;
+
+ case GRIP_MODE_XT:
+
+ if (grip_xt_read_packet(grip->gameport, (i << 1) + 4, data)) {
+ grip->bads++;
+ break;
+ }
+
+ input_report_abs(dev, ABS_X, (data[0] >> 2) & 0x3f);
+ input_report_abs(dev, ABS_Y, 63 - ((data[0] >> 8) & 0x3f));
+ input_report_abs(dev, ABS_BRAKE, (data[1] >> 2) & 0x3f);
+ input_report_abs(dev, ABS_GAS, (data[1] >> 8) & 0x3f);
+ input_report_abs(dev, ABS_THROTTLE, (data[2] >> 8) & 0x3f);
+
+ input_report_abs(dev, ABS_HAT0X, ((data[2] >> 1) & 1) - ( data[2] & 1));
+ input_report_abs(dev, ABS_HAT0Y, ((data[2] >> 2) & 1) - ((data[2] >> 3) & 1));
+ input_report_abs(dev, ABS_HAT1X, ((data[2] >> 5) & 1) - ((data[2] >> 4) & 1));
+ input_report_abs(dev, ABS_HAT1Y, ((data[2] >> 6) & 1) - ((data[2] >> 7) & 1));
+
+ for (j = 0; j < 11; j++)
+ input_report_key(dev, grip_btn_xt[j], (data[3] >> (j + 3)) & 1);
+ break;
+
+ case GRIP_MODE_DC:
+
+ if (grip_xt_read_packet(grip->gameport, (i << 1) + 4, data)) {
+ grip->bads++;
+ break;
+ }
+
+ input_report_abs(dev, ABS_X, (data[0] >> 2) & 0x3f);
+ input_report_abs(dev, ABS_Y, (data[0] >> 8) & 0x3f);
+ input_report_abs(dev, ABS_RX, (data[1] >> 2) & 0x3f);
+ input_report_abs(dev, ABS_RY, (data[1] >> 8) & 0x3f);
+ input_report_abs(dev, ABS_THROTTLE, (data[2] >> 8) & 0x3f);
+
+ input_report_abs(dev, ABS_HAT0X, ((data[2] >> 1) & 1) - ( data[2] & 1));
+ input_report_abs(dev, ABS_HAT0Y, ((data[2] >> 2) & 1) - ((data[2] >> 3) & 1));
+
+ for (j = 0; j < 9; j++)
+ input_report_key(dev, grip_btn_dc[j], (data[3] >> (j + 3)) & 1);
+ break;
+
+
+ }
+
+ input_sync(dev);
+ }
+}
+
+static int grip_open(struct input_dev *dev)
+{
+ struct grip *grip = input_get_drvdata(dev);
+
+ gameport_start_polling(grip->gameport);
+ return 0;
+}
+
+static void grip_close(struct input_dev *dev)
+{
+ struct grip *grip = input_get_drvdata(dev);
+
+ gameport_stop_polling(grip->gameport);
+}
+
+static int grip_connect(struct gameport *gameport, struct gameport_driver *drv)
+{
+ struct grip *grip;
+ struct input_dev *input_dev;
+ unsigned int data[GRIP_LENGTH_XT];
+ int i, j, t;
+ int err;
+
+ if (!(grip = kzalloc(sizeof(struct grip), GFP_KERNEL)))
+ return -ENOMEM;
+
+ grip->gameport = gameport;
+
+ gameport_set_drvdata(gameport, grip);
+
+ err = gameport_open(gameport, drv, GAMEPORT_MODE_RAW);
+ if (err)
+ goto fail1;
+
+ for (i = 0; i < 2; i++) {
+ if (!grip_gpp_read_packet(gameport, (i << 1) + 4, data)) {
+ grip->mode[i] = GRIP_MODE_GPP;
+ continue;
+ }
+ if (!grip_xt_read_packet(gameport, (i << 1) + 4, data)) {
+ if (!(data[3] & 7)) {
+ grip->mode[i] = GRIP_MODE_BD;
+ continue;
+ }
+ if (!(data[2] & 0xf0)) {
+ grip->mode[i] = GRIP_MODE_XT;
+ continue;
+ }
+ grip->mode[i] = GRIP_MODE_DC;
+ continue;
+ }
+ }
+
+ if (!grip->mode[0] && !grip->mode[1]) {
+ err = -ENODEV;
+ goto fail2;
+ }
+
+ gameport_set_poll_handler(gameport, grip_poll);
+ gameport_set_poll_interval(gameport, 20);
+
+ for (i = 0; i < 2; i++) {
+ if (!grip->mode[i])
+ continue;
+
+ grip->dev[i] = input_dev = input_allocate_device();
+ if (!input_dev) {
+ err = -ENOMEM;
+ goto fail3;
+ }
+
+ snprintf(grip->phys[i], sizeof(grip->phys[i]),
+ "%s/input%d", gameport->phys, i);
+
+ input_dev->name = grip_name[grip->mode[i]];
+ input_dev->phys = grip->phys[i];
+ input_dev->id.bustype = BUS_GAMEPORT;
+ input_dev->id.vendor = GAMEPORT_ID_VENDOR_GRAVIS;
+ input_dev->id.product = grip->mode[i];
+ input_dev->id.version = 0x0100;
+ input_dev->dev.parent = &gameport->dev;
+
+ input_set_drvdata(input_dev, grip);
+
+ input_dev->open = grip_open;
+ input_dev->close = grip_close;
+
+ input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
+
+ for (j = 0; (t = grip_abs[grip->mode[i]][j]) >= 0; j++) {
+
+ if (j < grip_cen[grip->mode[i]])
+ input_set_abs_params(input_dev, t, 14, 52, 1, 2);
+ else if (j < grip_anx[grip->mode[i]])
+ input_set_abs_params(input_dev, t, 3, 57, 1, 0);
+ else
+ input_set_abs_params(input_dev, t, -1, 1, 0, 0);
+ }
+
+ for (j = 0; (t = grip_btn[grip->mode[i]][j]) >= 0; j++)
+ if (t > 0)
+ set_bit(t, input_dev->keybit);
+
+ err = input_register_device(grip->dev[i]);
+ if (err)
+ goto fail4;
+ }
+
+ return 0;
+
+ fail4: input_free_device(grip->dev[i]);
+ fail3: while (--i >= 0)
+ if (grip->dev[i])
+ input_unregister_device(grip->dev[i]);
+ fail2: gameport_close(gameport);
+ fail1: gameport_set_drvdata(gameport, NULL);
+ kfree(grip);
+ return err;
+}
+
+static void grip_disconnect(struct gameport *gameport)
+{
+ struct grip *grip = gameport_get_drvdata(gameport);
+ int i;
+
+ for (i = 0; i < 2; i++)
+ if (grip->dev[i])
+ input_unregister_device(grip->dev[i]);
+ gameport_close(gameport);
+ gameport_set_drvdata(gameport, NULL);
+ kfree(grip);
+}
+
+static struct gameport_driver grip_drv = {
+ .driver = {
+ .name = "grip",
+ .owner = THIS_MODULE,
+ },
+ .description = DRIVER_DESC,
+ .connect = grip_connect,
+ .disconnect = grip_disconnect,
+};
+
+static int __init grip_init(void)
+{
+ return gameport_register_driver(&grip_drv);
+}
+
+static void __exit grip_exit(void)
+{
+ gameport_unregister_driver(&grip_drv);
+}
+
+module_init(grip_init);
+module_exit(grip_exit);
diff --git a/drivers/input/joystick/grip_mp.c b/drivers/input/joystick/grip_mp.c
new file mode 100644
index 0000000..2d47baf
--- /dev/null
+++ b/drivers/input/joystick/grip_mp.c
@@ -0,0 +1,701 @@
+/*
+ * Driver for the Gravis Grip Multiport, a gamepad "hub" that
+ * connects up to four 9-pin digital gamepads/joysticks.
+ * Driver tested on SMP and UP kernel versions 2.4.18-4 and 2.4.18-5.
+ *
+ * Thanks to Chris Gassib for helpful advice.
+ *
+ * Copyright (c) 2002 Brian Bonnlander, Bill Soudan
+ * Copyright (c) 1998-2000 Vojtech Pavlik
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/gameport.h>
+#include <linux/input.h>
+#include <linux/delay.h>
+#include <linux/proc_fs.h>
+#include <linux/jiffies.h>
+
+#define DRIVER_DESC "Gravis Grip Multiport driver"
+
+MODULE_AUTHOR("Brian Bonnlander");
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+#ifdef GRIP_DEBUG
+#define dbg(format, arg...) printk(KERN_ERR __FILE__ ": " format "\n" , ## arg)
+#else
+#define dbg(format, arg...) do {} while (0)
+#endif
+
+#define GRIP_MAX_PORTS 4
+/*
+ * Grip multiport state
+ */
+
+struct grip_port {
+ struct input_dev *dev;
+ int mode;
+ int registered;
+
+ /* individual gamepad states */
+ int buttons;
+ int xaxes;
+ int yaxes;
+ int dirty; /* has the state been updated? */
+};
+
+struct grip_mp {
+ struct gameport *gameport;
+ struct grip_port *port[GRIP_MAX_PORTS];
+ int reads;
+ int bads;
+};
+
+/*
+ * Multiport packet interpretation
+ */
+
+#define PACKET_FULL 0x80000000 /* packet is full */
+#define PACKET_IO_FAST 0x40000000 /* 3 bits per gameport read */
+#define PACKET_IO_SLOW 0x20000000 /* 1 bit per gameport read */
+#define PACKET_MP_MORE 0x04000000 /* multiport wants to send more */
+#define PACKET_MP_DONE 0x02000000 /* multiport done sending */
+
+/*
+ * Packet status code interpretation
+ */
+
+#define IO_GOT_PACKET 0x0100 /* Got a packet */
+#define IO_MODE_FAST 0x0200 /* Used 3 data bits per gameport read */
+#define IO_SLOT_CHANGE 0x0800 /* Multiport physical slot status changed */
+#define IO_DONE 0x1000 /* Multiport is done sending packets */
+#define IO_RETRY 0x4000 /* Try again later to get packet */
+#define IO_RESET 0x8000 /* Force multiport to resend all packets */
+
+/*
+ * Gamepad configuration data. Other 9-pin digital joystick devices
+ * may work with the multiport, so this may not be an exhaustive list!
+ * Commodore 64 joystick remains untested.
+ */
+
+#define GRIP_INIT_DELAY 2000 /* 2 ms */
+
+#define GRIP_MODE_NONE 0
+#define GRIP_MODE_RESET 1
+#define GRIP_MODE_GP 2
+#define GRIP_MODE_C64 3
+
+static const int grip_btn_gp[] = { BTN_TR, BTN_TL, BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z, -1 };
+static const int grip_btn_c64[] = { BTN_JOYSTICK, -1 };
+
+static const int grip_abs_gp[] = { ABS_X, ABS_Y, -1 };
+static const int grip_abs_c64[] = { ABS_X, ABS_Y, -1 };
+
+static const int *grip_abs[] = { NULL, NULL, grip_abs_gp, grip_abs_c64 };
+static const int *grip_btn[] = { NULL, NULL, grip_btn_gp, grip_btn_c64 };
+
+static const char *grip_name[] = { NULL, NULL, "Gravis Grip Pad", "Commodore 64 Joystick" };
+
+static const int init_seq[] = {
+ 1, 0, 1, 1, 0, 1, 1, 0, 1, 0, 1, 0, 1, 0, 1, 1, 0, 1, 0, 1, 0, 1, 0, 1,
+ 1, 0, 1, 0, 1, 0, 1, 1, 1, 1, 0, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1,
+ 1, 1, 0, 1, 1, 1, 0, 1, 0, 1, 1, 0, 1, 0, 1, 1, 0, 1, 0, 1, 0, 1, 0, 1,
+ 0, 1, 1, 0, 1, 1, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 1, 1 };
+
+/* Maps multiport directional values to X,Y axis values (each axis encoded in 3 bits) */
+
+static const int axis_map[] = { 5, 9, 1, 5, 6, 10, 2, 6, 4, 8, 0, 4, 5, 9, 1, 5 };
+
+static int register_slot(int i, struct grip_mp *grip);
+
+/*
+ * Returns whether an odd or even number of bits are on in pkt.
+ */
+
+static int bit_parity(u32 pkt)
+{
+ int x = pkt ^ (pkt >> 16);
+ x ^= x >> 8;
+ x ^= x >> 4;
+ x ^= x >> 2;
+ x ^= x >> 1;
+ return x & 1;
+}
+
+/*
+ * Poll gameport; return true if all bits set in 'onbits' are on and
+ * all bits set in 'offbits' are off.
+ */
+
+static inline int poll_until(u8 onbits, u8 offbits, int u_sec, struct gameport* gp, u8 *data)
+{
+ int i, nloops;
+
+ nloops = gameport_time(gp, u_sec);
+ for (i = 0; i < nloops; i++) {
+ *data = gameport_read(gp);
+ if ((*data & onbits) == onbits &&
+ (~(*data) & offbits) == offbits)
+ return 1;
+ }
+ dbg("gameport timed out after %d microseconds.\n", u_sec);
+ return 0;
+}
+
+/*
+ * Gets a 28-bit packet from the multiport.
+ *
+ * After getting a packet successfully, commands encoded by sendcode may
+ * be sent to the multiport.
+ *
+ * The multiport clock value is reflected in gameport bit B4.
+ *
+ * Returns a packet status code indicating whether packet is valid, the transfer
+ * mode, and any error conditions.
+ *
+ * sendflags: current I/O status
+ * sendcode: data to send to the multiport if sendflags is nonzero
+ */
+
+static int mp_io(struct gameport* gameport, int sendflags, int sendcode, u32 *packet)
+{
+ u8 raw_data; /* raw data from gameport */
+ u8 data_mask; /* packet data bits from raw_data */
+ u32 pkt; /* packet temporary storage */
+ int bits_per_read; /* num packet bits per gameport read */
+ int portvals = 0; /* used for port value sanity check */
+ int i;
+
+ /* Gameport bits B0, B4, B5 should first be off, then B4 should come on. */
+
+ *packet = 0;
+ raw_data = gameport_read(gameport);
+ if (raw_data & 1)
+ return IO_RETRY;
+
+ for (i = 0; i < 64; i++) {
+ raw_data = gameport_read(gameport);
+ portvals |= 1 << ((raw_data >> 4) & 3); /* Demux B4, B5 */
+ }
+
+ if (portvals == 1) { /* B4, B5 off */
+ raw_data = gameport_read(gameport);
+ portvals = raw_data & 0xf0;
+
+ if (raw_data & 0x31)
+ return IO_RESET;
+ gameport_trigger(gameport);
+
+ if (!poll_until(0x10, 0, 308, gameport, &raw_data))
+ return IO_RESET;
+ } else
+ return IO_RETRY;
+
+ /* Determine packet transfer mode and prepare for packet construction. */
+
+ if (raw_data & 0x20) { /* 3 data bits/read */
+ portvals |= raw_data >> 4; /* Compare B4-B7 before & after trigger */
+
+ if (portvals != 0xb)
+ return 0;
+ data_mask = 7;
+ bits_per_read = 3;
+ pkt = (PACKET_FULL | PACKET_IO_FAST) >> 28;
+ } else { /* 1 data bit/read */
+ data_mask = 1;
+ bits_per_read = 1;
+ pkt = (PACKET_FULL | PACKET_IO_SLOW) >> 28;
+ }
+
+ /* Construct a packet. Final data bits must be zero. */
+
+ while (1) {
+ if (!poll_until(0, 0x10, 77, gameport, &raw_data))
+ return IO_RESET;
+ raw_data = (raw_data >> 5) & data_mask;
+
+ if (pkt & PACKET_FULL)
+ break;
+ pkt = (pkt << bits_per_read) | raw_data;
+
+ if (!poll_until(0x10, 0, 77, gameport, &raw_data))
+ return IO_RESET;
+ }
+
+ if (raw_data)
+ return IO_RESET;
+
+ /* If 3 bits/read used, drop from 30 bits to 28. */
+
+ if (bits_per_read == 3) {
+ pkt = (pkt & 0xffff0000) | ((pkt << 1) & 0xffff);
+ pkt = (pkt >> 2) | 0xf0000000;
+ }
+
+ if (bit_parity(pkt) == 1)
+ return IO_RESET;
+
+ /* Acknowledge packet receipt */
+
+ if (!poll_until(0x30, 0, 77, gameport, &raw_data))
+ return IO_RESET;
+
+ raw_data = gameport_read(gameport);
+
+ if (raw_data & 1)
+ return IO_RESET;
+
+ gameport_trigger(gameport);
+
+ if (!poll_until(0, 0x20, 77, gameport, &raw_data))
+ return IO_RESET;
+
+ /* Return if we just wanted the packet or multiport wants to send more */
+
+ *packet = pkt;
+ if ((sendflags == 0) || ((sendflags & IO_RETRY) && !(pkt & PACKET_MP_DONE)))
+ return IO_GOT_PACKET;
+
+ if (pkt & PACKET_MP_MORE)
+ return IO_GOT_PACKET | IO_RETRY;
+
+ /* Multiport is done sending packets and is ready to receive data */
+
+ if (!poll_until(0x20, 0, 77, gameport, &raw_data))
+ return IO_GOT_PACKET | IO_RESET;
+
+ raw_data = gameport_read(gameport);
+ if (raw_data & 1)
+ return IO_GOT_PACKET | IO_RESET;
+
+ /* Trigger gameport based on bits in sendcode */
+
+ gameport_trigger(gameport);
+ do {
+ if (!poll_until(0x20, 0x10, 116, gameport, &raw_data))
+ return IO_GOT_PACKET | IO_RESET;
+
+ if (!poll_until(0x30, 0, 193, gameport, &raw_data))
+ return IO_GOT_PACKET | IO_RESET;
+
+ if (raw_data & 1)
+ return IO_GOT_PACKET | IO_RESET;
+
+ if (sendcode & 1)
+ gameport_trigger(gameport);
+
+ sendcode >>= 1;
+ } while (sendcode);
+
+ return IO_GOT_PACKET | IO_MODE_FAST;
+}
+
+/*
+ * Disables and restores interrupts for mp_io(), which does the actual I/O.
+ */
+
+static int multiport_io(struct gameport* gameport, int sendflags, int sendcode, u32 *packet)
+{
+ int status;
+ unsigned long flags;
+
+ local_irq_save(flags);
+ status = mp_io(gameport, sendflags, sendcode, packet);
+ local_irq_restore(flags);
+
+ return status;
+}
+
+/*
+ * Puts multiport into digital mode. Multiport LED turns green.
+ *
+ * Returns true if a valid digital packet was received, false otherwise.
+ */
+
+static int dig_mode_start(struct gameport *gameport, u32 *packet)
+{
+ int i;
+ int flags, tries = 0, bads = 0;
+
+ for (i = 0; i < ARRAY_SIZE(init_seq); i++) { /* Send magic sequence */
+ if (init_seq[i])
+ gameport_trigger(gameport);
+ udelay(GRIP_INIT_DELAY);
+ }
+
+ for (i = 0; i < 16; i++) /* Wait for multiport to settle */
+ udelay(GRIP_INIT_DELAY);
+
+ while (tries < 64 && bads < 8) { /* Reset multiport and try getting a packet */
+
+ flags = multiport_io(gameport, IO_RESET, 0x27, packet);
+
+ if (flags & IO_MODE_FAST)
+ return 1;
+
+ if (flags & IO_RETRY)
+ tries++;
+ else
+ bads++;
+ }
+ return 0;
+}
+
+/*
+ * Packet structure: B0-B15 => gamepad state
+ * B16-B20 => gamepad device type
+ * B21-B24 => multiport slot index (1-4)
+ *
+ * Known device types: 0x1f (grip pad), 0x0 (no device). Others may exist.
+ *
+ * Returns the packet status.
+ */
+
+static int get_and_decode_packet(struct grip_mp *grip, int flags)
+{
+ struct grip_port *port;
+ u32 packet;
+ int joytype = 0;
+ int slot;
+
+ /* Get a packet and check for validity */
+
+ flags &= IO_RESET | IO_RETRY;
+ flags = multiport_io(grip->gameport, flags, 0, &packet);
+ grip->reads++;
+
+ if (packet & PACKET_MP_DONE)
+ flags |= IO_DONE;
+
+ if (flags && !(flags & IO_GOT_PACKET)) {
+ grip->bads++;
+ return flags;
+ }
+
+ /* Ignore non-gamepad packets, e.g. multiport hardware version */
+
+ slot = ((packet >> 21) & 0xf) - 1;
+ if ((slot < 0) || (slot > 3))
+ return flags;
+
+ port = grip->port[slot];
+
+ /*
+ * Handle "reset" packets, which occur at startup, and when gamepads
+ * are removed or plugged in. May contain configuration of a new gamepad.
+ */
+
+ joytype = (packet >> 16) & 0x1f;
+ if (!joytype) {
+
+ if (port->registered) {
+ printk(KERN_INFO "grip_mp: removing %s, slot %d\n",
+ grip_name[port->mode], slot);
+ input_unregister_device(port->dev);
+ port->registered = 0;
+ }
+ dbg("Reset: grip multiport slot %d\n", slot);
+ port->mode = GRIP_MODE_RESET;
+ flags |= IO_SLOT_CHANGE;
+ return flags;
+ }
+
+ /* Interpret a grip pad packet */
+
+ if (joytype == 0x1f) {
+
+ int dir = (packet >> 8) & 0xf; /* eight way directional value */
+ port->buttons = (~packet) & 0xff;
+ port->yaxes = ((axis_map[dir] >> 2) & 3) - 1;
+ port->xaxes = (axis_map[dir] & 3) - 1;
+ port->dirty = 1;
+
+ if (port->mode == GRIP_MODE_RESET)
+ flags |= IO_SLOT_CHANGE;
+
+ port->mode = GRIP_MODE_GP;
+
+ if (!port->registered) {
+ dbg("New Grip pad in multiport slot %d.\n", slot);
+ if (register_slot(slot, grip)) {
+ port->mode = GRIP_MODE_RESET;
+ port->dirty = 0;
+ }
+ }
+ return flags;
+ }
+
+ /* Handle non-grip device codes. For now, just print diagnostics. */
+
+ {
+ static int strange_code = 0;
+ if (strange_code != joytype) {
+ printk(KERN_INFO "Possible non-grip pad/joystick detected.\n");
+ printk(KERN_INFO "Got joy type 0x%x and packet 0x%x.\n", joytype, packet);
+ strange_code = joytype;
+ }
+ }
+ return flags;
+}
+
+/*
+ * Returns true if all multiport slot states appear valid.
+ */
+
+static int slots_valid(struct grip_mp *grip)
+{
+ int flags, slot, invalid = 0, active = 0;
+
+ flags = get_and_decode_packet(grip, 0);
+ if (!(flags & IO_GOT_PACKET))
+ return 0;
+
+ for (slot = 0; slot < 4; slot++) {
+ if (grip->port[slot]->mode == GRIP_MODE_RESET)
+ invalid = 1;
+ if (grip->port[slot]->mode != GRIP_MODE_NONE)
+ active = 1;
+ }
+
+ /* Return true if no active slot but multiport sent all its data */
+ if (!active)
+ return (flags & IO_DONE) ? 1 : 0;
+
+ /* Return false if invalid device code received */
+ return invalid ? 0 : 1;
+}
+
+/*
+ * Returns whether the multiport was placed into digital mode and
+ * able to communicate its state successfully.
+ */
+
+static int multiport_init(struct grip_mp *grip)
+{
+ int dig_mode, initialized = 0, tries = 0;
+ u32 packet;
+
+ dig_mode = dig_mode_start(grip->gameport, &packet);
+ while (!dig_mode && tries < 4) {
+ dig_mode = dig_mode_start(grip->gameport, &packet);
+ tries++;
+ }
+
+ if (dig_mode)
+ dbg("multiport_init(): digital mode activated.\n");
+ else {
+ dbg("multiport_init(): unable to activate digital mode.\n");
+ return 0;
+ }
+
+ /* Get packets, store multiport state, and check state's validity */
+ for (tries = 0; tries < 4096; tries++) {
+ if (slots_valid(grip)) {
+ initialized = 1;
+ break;
+ }
+ }
+ dbg("multiport_init(): initialized == %d\n", initialized);
+ return initialized;
+}
+
+/*
+ * Reports joystick state to the linux input layer.
+ */
+
+static void report_slot(struct grip_mp *grip, int slot)
+{
+ struct grip_port *port = grip->port[slot];
+ int i;
+
+ /* Store button states with linux input driver */
+
+ for (i = 0; i < 8; i++)
+ input_report_key(port->dev, grip_btn_gp[i], (port->buttons >> i) & 1);
+
+ /* Store axis states with linux driver */
+
+ input_report_abs(port->dev, ABS_X, port->xaxes);
+ input_report_abs(port->dev, ABS_Y, port->yaxes);
+
+ /* Tell the receiver of the events to process them */
+
+ input_sync(port->dev);
+
+ port->dirty = 0;
+}
+
+/*
+ * Get the multiport state.
+ */
+
+static void grip_poll(struct gameport *gameport)
+{
+ struct grip_mp *grip = gameport_get_drvdata(gameport);
+ int i, npkts, flags;
+
+ for (npkts = 0; npkts < 4; npkts++) {
+ flags = IO_RETRY;
+ for (i = 0; i < 32; i++) {
+ flags = get_and_decode_packet(grip, flags);
+ if ((flags & IO_GOT_PACKET) || !(flags & IO_RETRY))
+ break;
+ }
+ if (flags & IO_DONE)
+ break;
+ }
+
+ for (i = 0; i < 4; i++)
+ if (grip->port[i]->dirty)
+ report_slot(grip, i);
+}
+
+/*
+ * Called when a joystick device file is opened
+ */
+
+static int grip_open(struct input_dev *dev)
+{
+ struct grip_mp *grip = input_get_drvdata(dev);
+
+ gameport_start_polling(grip->gameport);
+ return 0;
+}
+
+/*
+ * Called when a joystick device file is closed
+ */
+
+static void grip_close(struct input_dev *dev)
+{
+ struct grip_mp *grip = input_get_drvdata(dev);
+
+ gameport_stop_polling(grip->gameport);
+}
+
+/*
+ * Tell the linux input layer about a newly plugged-in gamepad.
+ */
+
+static int register_slot(int slot, struct grip_mp *grip)
+{
+ struct grip_port *port = grip->port[slot];
+ struct input_dev *input_dev;
+ int j, t;
+ int err;
+
+ port->dev = input_dev = input_allocate_device();
+ if (!input_dev)
+ return -ENOMEM;
+
+ input_dev->name = grip_name[port->mode];
+ input_dev->id.bustype = BUS_GAMEPORT;
+ input_dev->id.vendor = GAMEPORT_ID_VENDOR_GRAVIS;
+ input_dev->id.product = 0x0100 + port->mode;
+ input_dev->id.version = 0x0100;
+ input_dev->dev.parent = &grip->gameport->dev;
+
+ input_set_drvdata(input_dev, grip);
+
+ input_dev->open = grip_open;
+ input_dev->close = grip_close;
+
+ input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
+
+ for (j = 0; (t = grip_abs[port->mode][j]) >= 0; j++)
+ input_set_abs_params(input_dev, t, -1, 1, 0, 0);
+
+ for (j = 0; (t = grip_btn[port->mode][j]) >= 0; j++)
+ if (t > 0)
+ set_bit(t, input_dev->keybit);
+
+ err = input_register_device(port->dev);
+ if (err) {
+ input_free_device(port->dev);
+ return err;
+ }
+
+ port->registered = 1;
+
+ if (port->dirty) /* report initial state, if any */
+ report_slot(grip, slot);
+
+ return 0;
+}
+
+static int grip_connect(struct gameport *gameport, struct gameport_driver *drv)
+{
+ struct grip_mp *grip;
+ int err;
+
+ if (!(grip = kzalloc(sizeof(struct grip_mp), GFP_KERNEL)))
+ return -ENOMEM;
+
+ grip->gameport = gameport;
+
+ gameport_set_drvdata(gameport, grip);
+
+ err = gameport_open(gameport, drv, GAMEPORT_MODE_RAW);
+ if (err)
+ goto fail1;
+
+ gameport_set_poll_handler(gameport, grip_poll);
+ gameport_set_poll_interval(gameport, 20);
+
+ if (!multiport_init(grip)) {
+ err = -ENODEV;
+ goto fail2;
+ }
+
+ if (!grip->port[0]->mode && !grip->port[1]->mode && !grip->port[2]->mode && !grip->port[3]->mode) {
+ /* nothing plugged in */
+ err = -ENODEV;
+ goto fail2;
+ }
+
+ return 0;
+
+fail2: gameport_close(gameport);
+fail1: gameport_set_drvdata(gameport, NULL);
+ kfree(grip);
+ return err;
+}
+
+static void grip_disconnect(struct gameport *gameport)
+{
+ struct grip_mp *grip = gameport_get_drvdata(gameport);
+ int i;
+
+ for (i = 0; i < 4; i++)
+ if (grip->port[i]->registered)
+ input_unregister_device(grip->port[i]->dev);
+ gameport_close(gameport);
+ gameport_set_drvdata(gameport, NULL);
+ kfree(grip);
+}
+
+static struct gameport_driver grip_drv = {
+ .driver = {
+ .name = "grip_mp",
+ },
+ .description = DRIVER_DESC,
+ .connect = grip_connect,
+ .disconnect = grip_disconnect,
+};
+
+static int __init grip_init(void)
+{
+ return gameport_register_driver(&grip_drv);
+}
+
+static void __exit grip_exit(void)
+{
+ gameport_unregister_driver(&grip_drv);
+}
+
+module_init(grip_init);
+module_exit(grip_exit);
diff --git a/drivers/input/joystick/guillemot.c b/drivers/input/joystick/guillemot.c
new file mode 100644
index 0000000..4058d4b
--- /dev/null
+++ b/drivers/input/joystick/guillemot.c
@@ -0,0 +1,295 @@
+/*
+ * Copyright (c) 2001 Vojtech Pavlik
+ */
+
+/*
+ * Guillemot Digital Interface Protocol driver for Linux
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * Should you need to contact me, the author, you can do so either by
+ * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
+ * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
+ */
+
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/delay.h>
+#include <linux/init.h>
+#include <linux/gameport.h>
+#include <linux/input.h>
+#include <linux/jiffies.h>
+
+#define DRIVER_DESC "Guillemot Digital joystick driver"
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+#define GUILLEMOT_MAX_START 600 /* 600 us */
+#define GUILLEMOT_MAX_STROBE 60 /* 60 us */
+#define GUILLEMOT_MAX_LENGTH 17 /* 17 bytes */
+
+static short guillemot_abs_pad[] =
+ { ABS_X, ABS_Y, ABS_THROTTLE, ABS_RUDDER, -1 };
+
+static short guillemot_btn_pad[] =
+ { BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z, BTN_TL, BTN_TR, BTN_MODE, BTN_SELECT, -1 };
+
+static struct {
+ int x;
+ int y;
+} guillemot_hat_to_axis[16] = {{ 0,-1}, { 1,-1}, { 1, 0}, { 1, 1}, { 0, 1}, {-1, 1}, {-1, 0}, {-1,-1}};
+
+struct guillemot_type {
+ unsigned char id;
+ short *abs;
+ short *btn;
+ int hat;
+ char *name;
+};
+
+struct guillemot {
+ struct gameport *gameport;
+ struct input_dev *dev;
+ int bads;
+ int reads;
+ struct guillemot_type *type;
+ unsigned char length;
+ char phys[32];
+};
+
+static struct guillemot_type guillemot_type[] = {
+ { 0x00, guillemot_abs_pad, guillemot_btn_pad, 1, "Guillemot Pad" },
+ { 0 }};
+
+/*
+ * guillemot_read_packet() reads Guillemot joystick data.
+ */
+
+static int guillemot_read_packet(struct gameport *gameport, u8 *data)
+{
+ unsigned long flags;
+ unsigned char u, v;
+ unsigned int t, s;
+ int i;
+
+ for (i = 0; i < GUILLEMOT_MAX_LENGTH; i++)
+ data[i] = 0;
+
+ i = 0;
+ t = gameport_time(gameport, GUILLEMOT_MAX_START);
+ s = gameport_time(gameport, GUILLEMOT_MAX_STROBE);
+
+ local_irq_save(flags);
+ gameport_trigger(gameport);
+ v = gameport_read(gameport);
+
+ while (t > 0 && i < GUILLEMOT_MAX_LENGTH * 8) {
+ t--;
+ u = v; v = gameport_read(gameport);
+ if (v & ~u & 0x10) {
+ data[i >> 3] |= ((v >> 5) & 1) << (i & 7);
+ i++;
+ t = s;
+ }
+ }
+
+ local_irq_restore(flags);
+
+ return i;
+}
+
+/*
+ * guillemot_poll() reads and analyzes Guillemot joystick data.
+ */
+
+static void guillemot_poll(struct gameport *gameport)
+{
+ struct guillemot *guillemot = gameport_get_drvdata(gameport);
+ struct input_dev *dev = guillemot->dev;
+ u8 data[GUILLEMOT_MAX_LENGTH];
+ int i;
+
+ guillemot->reads++;
+
+ if (guillemot_read_packet(guillemot->gameport, data) != GUILLEMOT_MAX_LENGTH * 8 ||
+ data[0] != 0x55 || data[16] != 0xaa) {
+ guillemot->bads++;
+ } else {
+
+ for (i = 0; i < 6 && guillemot->type->abs[i] >= 0; i++)
+ input_report_abs(dev, guillemot->type->abs[i], data[i + 5]);
+
+ if (guillemot->type->hat) {
+ input_report_abs(dev, ABS_HAT0X, guillemot_hat_to_axis[data[4] >> 4].x);
+ input_report_abs(dev, ABS_HAT0Y, guillemot_hat_to_axis[data[4] >> 4].y);
+ }
+
+ for (i = 0; i < 16 && guillemot->type->btn[i] >= 0; i++)
+ input_report_key(dev, guillemot->type->btn[i], (data[2 + (i >> 3)] >> (i & 7)) & 1);
+ }
+
+ input_sync(dev);
+}
+
+/*
+ * guillemot_open() is a callback from the input open routine.
+ */
+
+static int guillemot_open(struct input_dev *dev)
+{
+ struct guillemot *guillemot = input_get_drvdata(dev);
+
+ gameport_start_polling(guillemot->gameport);
+ return 0;
+}
+
+/*
+ * guillemot_close() is a callback from the input close routine.
+ */
+
+static void guillemot_close(struct input_dev *dev)
+{
+ struct guillemot *guillemot = input_get_drvdata(dev);
+
+ gameport_stop_polling(guillemot->gameport);
+}
+
+/*
+ * guillemot_connect() probes for Guillemot joysticks.
+ */
+
+static int guillemot_connect(struct gameport *gameport, struct gameport_driver *drv)
+{
+ struct guillemot *guillemot;
+ struct input_dev *input_dev;
+ u8 data[GUILLEMOT_MAX_LENGTH];
+ int i, t;
+ int err;
+
+ guillemot = kzalloc(sizeof(struct guillemot), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!guillemot || !input_dev) {
+ err = -ENOMEM;
+ goto fail1;
+ }
+
+ guillemot->gameport = gameport;
+ guillemot->dev = input_dev;
+
+ gameport_set_drvdata(gameport, guillemot);
+
+ err = gameport_open(gameport, drv, GAMEPORT_MODE_RAW);
+ if (err)
+ goto fail1;
+
+ i = guillemot_read_packet(gameport, data);
+
+ if (i != GUILLEMOT_MAX_LENGTH * 8 || data[0] != 0x55 || data[16] != 0xaa) {
+ err = -ENODEV;
+ goto fail2;
+ }
+
+ for (i = 0; guillemot_type[i].name; i++)
+ if (guillemot_type[i].id == data[11])
+ break;
+
+ if (!guillemot_type[i].name) {
+ printk(KERN_WARNING "guillemot.c: Unknown joystick on %s. [ %02x%02x:%04x, ver %d.%02d ]\n",
+ gameport->phys, data[12], data[13], data[11], data[14], data[15]);
+ err = -ENODEV;
+ goto fail2;
+ }
+
+ gameport_set_poll_handler(gameport, guillemot_poll);
+ gameport_set_poll_interval(gameport, 20);
+
+ snprintf(guillemot->phys, sizeof(guillemot->phys), "%s/input0", gameport->phys);
+ guillemot->type = guillemot_type + i;
+
+ input_dev->name = guillemot_type[i].name;
+ input_dev->phys = guillemot->phys;
+ input_dev->id.bustype = BUS_GAMEPORT;
+ input_dev->id.vendor = GAMEPORT_ID_VENDOR_GUILLEMOT;
+ input_dev->id.product = guillemot_type[i].id;
+ input_dev->id.version = (int)data[14] << 8 | data[15];
+ input_dev->dev.parent = &gameport->dev;
+
+ input_set_drvdata(input_dev, guillemot);
+
+ input_dev->open = guillemot_open;
+ input_dev->close = guillemot_close;
+
+ input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
+
+ for (i = 0; (t = guillemot->type->abs[i]) >= 0; i++)
+ input_set_abs_params(input_dev, t, 0, 255, 0, 0);
+
+ if (guillemot->type->hat) {
+ input_set_abs_params(input_dev, ABS_HAT0X, -1, 1, 0, 0);
+ input_set_abs_params(input_dev, ABS_HAT0Y, -1, 1, 0, 0);
+ }
+
+ for (i = 0; (t = guillemot->type->btn[i]) >= 0; i++)
+ set_bit(t, input_dev->keybit);
+
+ err = input_register_device(guillemot->dev);
+ if (err)
+ goto fail2;
+
+ return 0;
+
+fail2: gameport_close(gameport);
+fail1: gameport_set_drvdata(gameport, NULL);
+ input_free_device(input_dev);
+ kfree(guillemot);
+ return err;
+}
+
+static void guillemot_disconnect(struct gameport *gameport)
+{
+ struct guillemot *guillemot = gameport_get_drvdata(gameport);
+
+ printk(KERN_INFO "guillemot.c: Failed %d reads out of %d on %s\n", guillemot->reads, guillemot->bads, guillemot->phys);
+ input_unregister_device(guillemot->dev);
+ gameport_close(gameport);
+ kfree(guillemot);
+}
+
+static struct gameport_driver guillemot_drv = {
+ .driver = {
+ .name = "guillemot",
+ },
+ .description = DRIVER_DESC,
+ .connect = guillemot_connect,
+ .disconnect = guillemot_disconnect,
+};
+
+static int __init guillemot_init(void)
+{
+ return gameport_register_driver(&guillemot_drv);
+}
+
+static void __exit guillemot_exit(void)
+{
+ gameport_unregister_driver(&guillemot_drv);
+}
+
+module_init(guillemot_init);
+module_exit(guillemot_exit);
diff --git a/drivers/input/joystick/iforce/Kconfig b/drivers/input/joystick/iforce/Kconfig
new file mode 100644
index 0000000..8fde22a
--- /dev/null
+++ b/drivers/input/joystick/iforce/Kconfig
@@ -0,0 +1,32 @@
+#
+# I-Force driver configuration
+#
+config JOYSTICK_IFORCE
+ tristate "I-Force devices"
+ depends on INPUT && INPUT_JOYSTICK
+ help
+ Say Y here if you have an I-Force joystick or steering wheel
+
+ You also must choose at least one of the two options below.
+
+ To compile this driver as a module, choose M here: the
+ module will be called iforce.
+
+config JOYSTICK_IFORCE_USB
+ bool "I-Force USB joysticks and wheels"
+ depends on JOYSTICK_IFORCE && (JOYSTICK_IFORCE=m || USB=y) && USB
+ help
+ Say Y here if you have an I-Force joystick or steering wheel
+ connected to your USB port.
+
+config JOYSTICK_IFORCE_232
+ bool "I-Force Serial joysticks and wheels"
+ depends on JOYSTICK_IFORCE && (JOYSTICK_IFORCE=m || SERIO=y) && SERIO
+ help
+ Say Y here if you have an I-Force joystick or steering wheel
+ connected to your serial (COM) port.
+
+ You will need an additional utility called inputattach, see
+ <file:Documentation/input/joystick.txt>
+ and <file:Documentation/input/ff.txt>.
+
diff --git a/drivers/input/joystick/iforce/Makefile b/drivers/input/joystick/iforce/Makefile
new file mode 100644
index 0000000..bc5bda2
--- /dev/null
+++ b/drivers/input/joystick/iforce/Makefile
@@ -0,0 +1,11 @@
+#
+# Makefile for the I-Force driver
+#
+# By Johann Deneux <johann.deneux@gmail.com>
+#
+
+obj-$(CONFIG_JOYSTICK_IFORCE) += iforce.o
+
+iforce-y := iforce-ff.o iforce-main.o iforce-packets.o
+iforce-$(CONFIG_JOYSTICK_IFORCE_232) += iforce-serio.o
+iforce-$(CONFIG_JOYSTICK_IFORCE_USB) += iforce-usb.o
diff --git a/drivers/input/joystick/iforce/iforce-ff.c b/drivers/input/joystick/iforce/iforce-ff.c
new file mode 100644
index 0000000..0de9a09
--- /dev/null
+++ b/drivers/input/joystick/iforce/iforce-ff.c
@@ -0,0 +1,543 @@
+/*
+ * Copyright (c) 2000-2002 Vojtech Pavlik <vojtech@ucw.cz>
+ * Copyright (c) 2001-2002, 2007 Johann Deneux <johann.deneux@gmail.com>
+ *
+ * USB/RS232 I-Force joysticks and wheels.
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * Should you need to contact me, the author, you can do so either by
+ * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
+ * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
+ */
+
+#include "iforce.h"
+
+/*
+ * Set the magnitude of a constant force effect
+ * Return error code
+ *
+ * Note: caller must ensure exclusive access to device
+ */
+
+static int make_magnitude_modifier(struct iforce* iforce,
+ struct resource* mod_chunk, int no_alloc, __s16 level)
+{
+ unsigned char data[3];
+
+ if (!no_alloc) {
+ mutex_lock(&iforce->mem_mutex);
+ if (allocate_resource(&(iforce->device_memory), mod_chunk, 2,
+ iforce->device_memory.start, iforce->device_memory.end, 2L,
+ NULL, NULL)) {
+ mutex_unlock(&iforce->mem_mutex);
+ return -ENOSPC;
+ }
+ mutex_unlock(&iforce->mem_mutex);
+ }
+
+ data[0] = LO(mod_chunk->start);
+ data[1] = HI(mod_chunk->start);
+ data[2] = HIFIX80(level);
+
+ iforce_send_packet(iforce, FF_CMD_MAGNITUDE, data);
+
+ iforce_dump_packet("magnitude: ", FF_CMD_MAGNITUDE, data);
+ return 0;
+}
+
+/*
+ * Upload the component of an effect dealing with the period, phase and magnitude
+ */
+
+static int make_period_modifier(struct iforce* iforce,
+ struct resource* mod_chunk, int no_alloc,
+ __s16 magnitude, __s16 offset, u16 period, u16 phase)
+{
+ unsigned char data[7];
+
+ period = TIME_SCALE(period);
+
+ if (!no_alloc) {
+ mutex_lock(&iforce->mem_mutex);
+ if (allocate_resource(&(iforce->device_memory), mod_chunk, 0x0c,
+ iforce->device_memory.start, iforce->device_memory.end, 2L,
+ NULL, NULL)) {
+ mutex_unlock(&iforce->mem_mutex);
+ return -ENOSPC;
+ }
+ mutex_unlock(&iforce->mem_mutex);
+ }
+
+ data[0] = LO(mod_chunk->start);
+ data[1] = HI(mod_chunk->start);
+
+ data[2] = HIFIX80(magnitude);
+ data[3] = HIFIX80(offset);
+ data[4] = HI(phase);
+
+ data[5] = LO(period);
+ data[6] = HI(period);
+
+ iforce_send_packet(iforce, FF_CMD_PERIOD, data);
+
+ return 0;
+}
+
+/*
+ * Uploads the part of an effect setting the envelope of the force
+ */
+
+static int make_envelope_modifier(struct iforce* iforce,
+ struct resource* mod_chunk, int no_alloc,
+ u16 attack_duration, __s16 initial_level,
+ u16 fade_duration, __s16 final_level)
+{
+ unsigned char data[8];
+
+ attack_duration = TIME_SCALE(attack_duration);
+ fade_duration = TIME_SCALE(fade_duration);
+
+ if (!no_alloc) {
+ mutex_lock(&iforce->mem_mutex);
+ if (allocate_resource(&(iforce->device_memory), mod_chunk, 0x0e,
+ iforce->device_memory.start, iforce->device_memory.end, 2L,
+ NULL, NULL)) {
+ mutex_unlock(&iforce->mem_mutex);
+ return -ENOSPC;
+ }
+ mutex_unlock(&iforce->mem_mutex);
+ }
+
+ data[0] = LO(mod_chunk->start);
+ data[1] = HI(mod_chunk->start);
+
+ data[2] = LO(attack_duration);
+ data[3] = HI(attack_duration);
+ data[4] = HI(initial_level);
+
+ data[5] = LO(fade_duration);
+ data[6] = HI(fade_duration);
+ data[7] = HI(final_level);
+
+ iforce_send_packet(iforce, FF_CMD_ENVELOPE, data);
+
+ return 0;
+}
+
+/*
+ * Component of spring, friction, inertia... effects
+ */
+
+static int make_condition_modifier(struct iforce* iforce,
+ struct resource* mod_chunk, int no_alloc,
+ __u16 rsat, __u16 lsat, __s16 rk, __s16 lk, u16 db, __s16 center)
+{
+ unsigned char data[10];
+
+ if (!no_alloc) {
+ mutex_lock(&iforce->mem_mutex);
+ if (allocate_resource(&(iforce->device_memory), mod_chunk, 8,
+ iforce->device_memory.start, iforce->device_memory.end, 2L,
+ NULL, NULL)) {
+ mutex_unlock(&iforce->mem_mutex);
+ return -ENOSPC;
+ }
+ mutex_unlock(&iforce->mem_mutex);
+ }
+
+ data[0] = LO(mod_chunk->start);
+ data[1] = HI(mod_chunk->start);
+
+ data[2] = (100 * rk) >> 15; /* Dangerous: the sign is extended by gcc on plateforms providing an arith shift */
+ data[3] = (100 * lk) >> 15; /* This code is incorrect on cpus lacking arith shift */
+
+ center = (500 * center) >> 15;
+ data[4] = LO(center);
+ data[5] = HI(center);
+
+ db = (1000 * db) >> 16;
+ data[6] = LO(db);
+ data[7] = HI(db);
+
+ data[8] = (100 * rsat) >> 16;
+ data[9] = (100 * lsat) >> 16;
+
+ iforce_send_packet(iforce, FF_CMD_CONDITION, data);
+ iforce_dump_packet("condition", FF_CMD_CONDITION, data);
+
+ return 0;
+}
+
+static unsigned char find_button(struct iforce *iforce, signed short button)
+{
+ int i;
+
+ for (i = 1; iforce->type->btn[i] >= 0; i++)
+ if (iforce->type->btn[i] == button)
+ return i + 1;
+ return 0;
+}
+
+/*
+ * Analyse the changes in an effect, and tell if we need to send an condition
+ * parameter packet
+ */
+static int need_condition_modifier(struct iforce *iforce,
+ struct ff_effect *old,
+ struct ff_effect *new)
+{
+ int ret = 0;
+ int i;
+
+ if (new->type != FF_SPRING && new->type != FF_FRICTION) {
+ dev_warn(&iforce->dev->dev, "bad effect type in %s\n",
+ __func__);
+ return 0;
+ }
+
+ for (i = 0; i < 2; i++) {
+ ret |= old->u.condition[i].right_saturation != new->u.condition[i].right_saturation
+ || old->u.condition[i].left_saturation != new->u.condition[i].left_saturation
+ || old->u.condition[i].right_coeff != new->u.condition[i].right_coeff
+ || old->u.condition[i].left_coeff != new->u.condition[i].left_coeff
+ || old->u.condition[i].deadband != new->u.condition[i].deadband
+ || old->u.condition[i].center != new->u.condition[i].center;
+ }
+ return ret;
+}
+
+/*
+ * Analyse the changes in an effect, and tell if we need to send a magnitude
+ * parameter packet
+ */
+static int need_magnitude_modifier(struct iforce *iforce,
+ struct ff_effect *old,
+ struct ff_effect *effect)
+{
+ if (effect->type != FF_CONSTANT) {
+ dev_warn(&iforce->dev->dev, "bad effect type in %s\n",
+ __func__);
+ return 0;
+ }
+
+ return old->u.constant.level != effect->u.constant.level;
+}
+
+/*
+ * Analyse the changes in an effect, and tell if we need to send an envelope
+ * parameter packet
+ */
+static int need_envelope_modifier(struct iforce *iforce, struct ff_effect *old,
+ struct ff_effect *effect)
+{
+ switch (effect->type) {
+ case FF_CONSTANT:
+ if (old->u.constant.envelope.attack_length != effect->u.constant.envelope.attack_length
+ || old->u.constant.envelope.attack_level != effect->u.constant.envelope.attack_level
+ || old->u.constant.envelope.fade_length != effect->u.constant.envelope.fade_length
+ || old->u.constant.envelope.fade_level != effect->u.constant.envelope.fade_level)
+ return 1;
+ break;
+
+ case FF_PERIODIC:
+ if (old->u.periodic.envelope.attack_length != effect->u.periodic.envelope.attack_length
+ || old->u.periodic.envelope.attack_level != effect->u.periodic.envelope.attack_level
+ || old->u.periodic.envelope.fade_length != effect->u.periodic.envelope.fade_length
+ || old->u.periodic.envelope.fade_level != effect->u.periodic.envelope.fade_level)
+ return 1;
+ break;
+
+ default:
+ dev_warn(&iforce->dev->dev, "bad effect type in %s\n",
+ __func__);
+ }
+
+ return 0;
+}
+
+/*
+ * Analyse the changes in an effect, and tell if we need to send a periodic
+ * parameter effect
+ */
+static int need_period_modifier(struct iforce *iforce, struct ff_effect *old,
+ struct ff_effect *new)
+{
+ if (new->type != FF_PERIODIC) {
+ dev_warn(&iforce->dev->dev, "bad effect type in %s\n",
+ __func__);
+ return 0;
+ }
+ return (old->u.periodic.period != new->u.periodic.period
+ || old->u.periodic.magnitude != new->u.periodic.magnitude
+ || old->u.periodic.offset != new->u.periodic.offset
+ || old->u.periodic.phase != new->u.periodic.phase);
+}
+
+/*
+ * Analyse the changes in an effect, and tell if we need to send an effect
+ * packet
+ */
+static int need_core(struct ff_effect *old, struct ff_effect *new)
+{
+ if (old->direction != new->direction
+ || old->trigger.button != new->trigger.button
+ || old->trigger.interval != new->trigger.interval
+ || old->replay.length != new->replay.length
+ || old->replay.delay != new->replay.delay)
+ return 1;
+
+ return 0;
+}
+/*
+ * Send the part common to all effects to the device
+ */
+static int make_core(struct iforce* iforce, u16 id, u16 mod_id1, u16 mod_id2,
+ u8 effect_type, u8 axes, u16 duration, u16 delay, u16 button,
+ u16 interval, u16 direction)
+{
+ unsigned char data[14];
+
+ duration = TIME_SCALE(duration);
+ delay = TIME_SCALE(delay);
+ interval = TIME_SCALE(interval);
+
+ data[0] = LO(id);
+ data[1] = effect_type;
+ data[2] = LO(axes) | find_button(iforce, button);
+
+ data[3] = LO(duration);
+ data[4] = HI(duration);
+
+ data[5] = HI(direction);
+
+ data[6] = LO(interval);
+ data[7] = HI(interval);
+
+ data[8] = LO(mod_id1);
+ data[9] = HI(mod_id1);
+ data[10] = LO(mod_id2);
+ data[11] = HI(mod_id2);
+
+ data[12] = LO(delay);
+ data[13] = HI(delay);
+
+ /* Stop effect */
+/* iforce_control_playback(iforce, id, 0);*/
+
+ iforce_send_packet(iforce, FF_CMD_EFFECT, data);
+
+ /* If needed, restart effect */
+ if (test_bit(FF_CORE_SHOULD_PLAY, iforce->core_effects[id].flags)) {
+ /* BUG: perhaps we should replay n times, instead of 1. But we do not know n */
+ iforce_control_playback(iforce, id, 1);
+ }
+
+ return 0;
+}
+
+/*
+ * Upload a periodic effect to the device
+ * See also iforce_upload_constant.
+ */
+int iforce_upload_periodic(struct iforce *iforce, struct ff_effect *effect, struct ff_effect *old)
+{
+ u8 wave_code;
+ int core_id = effect->id;
+ struct iforce_core_effect* core_effect = iforce->core_effects + core_id;
+ struct resource* mod1_chunk = &(iforce->core_effects[core_id].mod1_chunk);
+ struct resource* mod2_chunk = &(iforce->core_effects[core_id].mod2_chunk);
+ int param1_err = 1;
+ int param2_err = 1;
+ int core_err = 0;
+
+ if (!old || need_period_modifier(iforce, old, effect)) {
+ param1_err = make_period_modifier(iforce, mod1_chunk,
+ old != NULL,
+ effect->u.periodic.magnitude, effect->u.periodic.offset,
+ effect->u.periodic.period, effect->u.periodic.phase);
+ if (param1_err)
+ return param1_err;
+ set_bit(FF_MOD1_IS_USED, core_effect->flags);
+ }
+
+ if (!old || need_envelope_modifier(iforce, old, effect)) {
+ param2_err = make_envelope_modifier(iforce, mod2_chunk,
+ old !=NULL,
+ effect->u.periodic.envelope.attack_length,
+ effect->u.periodic.envelope.attack_level,
+ effect->u.periodic.envelope.fade_length,
+ effect->u.periodic.envelope.fade_level);
+ if (param2_err)
+ return param2_err;
+ set_bit(FF_MOD2_IS_USED, core_effect->flags);
+ }
+
+ switch (effect->u.periodic.waveform) {
+ case FF_SQUARE: wave_code = 0x20; break;
+ case FF_TRIANGLE: wave_code = 0x21; break;
+ case FF_SINE: wave_code = 0x22; break;
+ case FF_SAW_UP: wave_code = 0x23; break;
+ case FF_SAW_DOWN: wave_code = 0x24; break;
+ default: wave_code = 0x20; break;
+ }
+
+ if (!old || need_core(old, effect)) {
+ core_err = make_core(iforce, effect->id,
+ mod1_chunk->start,
+ mod2_chunk->start,
+ wave_code,
+ 0x20,
+ effect->replay.length,
+ effect->replay.delay,
+ effect->trigger.button,
+ effect->trigger.interval,
+ effect->direction);
+ }
+
+ /* If one of the parameter creation failed, we already returned an
+ * error code.
+ * If the core creation failed, we return its error code.
+ * Else: if one parameter at least was created, we return 0
+ * else we return 1;
+ */
+ return core_err < 0 ? core_err : (param1_err && param2_err);
+}
+
+/*
+ * Upload a constant force effect
+ * Return value:
+ * <0 Error code
+ * 0 Ok, effect created or updated
+ * 1 effect did not change since last upload, and no packet was therefore sent
+ */
+int iforce_upload_constant(struct iforce *iforce, struct ff_effect *effect, struct ff_effect *old)
+{
+ int core_id = effect->id;
+ struct iforce_core_effect* core_effect = iforce->core_effects + core_id;
+ struct resource* mod1_chunk = &(iforce->core_effects[core_id].mod1_chunk);
+ struct resource* mod2_chunk = &(iforce->core_effects[core_id].mod2_chunk);
+ int param1_err = 1;
+ int param2_err = 1;
+ int core_err = 0;
+
+ if (!old || need_magnitude_modifier(iforce, old, effect)) {
+ param1_err = make_magnitude_modifier(iforce, mod1_chunk,
+ old != NULL,
+ effect->u.constant.level);
+ if (param1_err)
+ return param1_err;
+ set_bit(FF_MOD1_IS_USED, core_effect->flags);
+ }
+
+ if (!old || need_envelope_modifier(iforce, old, effect)) {
+ param2_err = make_envelope_modifier(iforce, mod2_chunk,
+ old != NULL,
+ effect->u.constant.envelope.attack_length,
+ effect->u.constant.envelope.attack_level,
+ effect->u.constant.envelope.fade_length,
+ effect->u.constant.envelope.fade_level);
+ if (param2_err)
+ return param2_err;
+ set_bit(FF_MOD2_IS_USED, core_effect->flags);
+ }
+
+ if (!old || need_core(old, effect)) {
+ core_err = make_core(iforce, effect->id,
+ mod1_chunk->start,
+ mod2_chunk->start,
+ 0x00,
+ 0x20,
+ effect->replay.length,
+ effect->replay.delay,
+ effect->trigger.button,
+ effect->trigger.interval,
+ effect->direction);
+ }
+
+ /* If one of the parameter creation failed, we already returned an
+ * error code.
+ * If the core creation failed, we return its error code.
+ * Else: if one parameter at least was created, we return 0
+ * else we return 1;
+ */
+ return core_err < 0 ? core_err : (param1_err && param2_err);
+}
+
+/*
+ * Upload an condition effect. Those are for example friction, inertia, springs...
+ */
+int iforce_upload_condition(struct iforce *iforce, struct ff_effect *effect, struct ff_effect *old)
+{
+ int core_id = effect->id;
+ struct iforce_core_effect* core_effect = iforce->core_effects + core_id;
+ struct resource* mod1_chunk = &(core_effect->mod1_chunk);
+ struct resource* mod2_chunk = &(core_effect->mod2_chunk);
+ u8 type;
+ int param_err = 1;
+ int core_err = 0;
+
+ switch (effect->type) {
+ case FF_SPRING: type = 0x40; break;
+ case FF_DAMPER: type = 0x41; break;
+ default: return -1;
+ }
+
+ if (!old || need_condition_modifier(iforce, old, effect)) {
+ param_err = make_condition_modifier(iforce, mod1_chunk,
+ old != NULL,
+ effect->u.condition[0].right_saturation,
+ effect->u.condition[0].left_saturation,
+ effect->u.condition[0].right_coeff,
+ effect->u.condition[0].left_coeff,
+ effect->u.condition[0].deadband,
+ effect->u.condition[0].center);
+ if (param_err)
+ return param_err;
+ set_bit(FF_MOD1_IS_USED, core_effect->flags);
+
+ param_err = make_condition_modifier(iforce, mod2_chunk,
+ old != NULL,
+ effect->u.condition[1].right_saturation,
+ effect->u.condition[1].left_saturation,
+ effect->u.condition[1].right_coeff,
+ effect->u.condition[1].left_coeff,
+ effect->u.condition[1].deadband,
+ effect->u.condition[1].center);
+ if (param_err)
+ return param_err;
+ set_bit(FF_MOD2_IS_USED, core_effect->flags);
+
+ }
+
+ if (!old || need_core(old, effect)) {
+ core_err = make_core(iforce, effect->id,
+ mod1_chunk->start, mod2_chunk->start,
+ type, 0xc0,
+ effect->replay.length, effect->replay.delay,
+ effect->trigger.button, effect->trigger.interval,
+ effect->direction);
+ }
+
+ /* If the parameter creation failed, we already returned an
+ * error code.
+ * If the core creation failed, we return its error code.
+ * Else: if a parameter was created, we return 0
+ * else we return 1;
+ */
+ return core_err < 0 ? core_err : param_err;
+}
diff --git a/drivers/input/joystick/iforce/iforce-main.c b/drivers/input/joystick/iforce/iforce-main.c
new file mode 100644
index 0000000..405febd
--- /dev/null
+++ b/drivers/input/joystick/iforce/iforce-main.c
@@ -0,0 +1,488 @@
+/*
+ * Copyright (c) 2000-2002 Vojtech Pavlik <vojtech@ucw.cz>
+ * Copyright (c) 2001-2002, 2007 Johann Deneux <johann.deneux@gmail.com>
+ *
+ * USB/RS232 I-Force joysticks and wheels.
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * Should you need to contact me, the author, you can do so either by
+ * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
+ * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
+ */
+
+#include "iforce.h"
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>, Johann Deneux <johann.deneux@gmail.com>");
+MODULE_DESCRIPTION("USB/RS232 I-Force joysticks and wheels driver");
+MODULE_LICENSE("GPL");
+
+static signed short btn_joystick[] =
+{ BTN_TRIGGER, BTN_TOP, BTN_THUMB, BTN_TOP2, BTN_BASE,
+ BTN_BASE2, BTN_BASE3, BTN_BASE4, BTN_BASE5, BTN_A, BTN_B, BTN_C, -1 };
+
+static signed short btn_avb_pegasus[] =
+{ BTN_TRIGGER, BTN_TOP, BTN_THUMB, BTN_TOP2, BTN_BASE,
+ BTN_BASE2, BTN_BASE3, BTN_BASE4, -1 };
+
+static signed short btn_wheel[] =
+{ BTN_TRIGGER, BTN_TOP, BTN_THUMB, BTN_TOP2, BTN_BASE,
+ BTN_BASE2, BTN_BASE3, BTN_BASE4, BTN_BASE5, BTN_A, BTN_B, BTN_C, -1 };
+
+static signed short btn_avb_tw[] =
+{ BTN_TRIGGER, BTN_THUMB, BTN_TOP, BTN_TOP2, BTN_BASE,
+ BTN_BASE2, BTN_BASE3, BTN_BASE4, -1 };
+
+static signed short btn_avb_wheel[] =
+{ BTN_GEAR_DOWN, BTN_GEAR_UP, BTN_BASE, BTN_BASE2, BTN_BASE3,
+ BTN_BASE4, BTN_BASE5, BTN_BASE6, -1 };
+
+static signed short abs_joystick[] =
+{ ABS_X, ABS_Y, ABS_THROTTLE, ABS_HAT0X, ABS_HAT0Y, -1 };
+
+static signed short abs_joystick_rudder[] =
+{ ABS_X, ABS_Y, ABS_THROTTLE, ABS_RUDDER, ABS_HAT0X, ABS_HAT0Y, -1 };
+
+static signed short abs_avb_pegasus[] =
+{ ABS_X, ABS_Y, ABS_THROTTLE, ABS_RUDDER, ABS_HAT0X, ABS_HAT0Y,
+ ABS_HAT1X, ABS_HAT1Y, -1 };
+
+static signed short abs_wheel[] =
+{ ABS_WHEEL, ABS_GAS, ABS_BRAKE, ABS_HAT0X, ABS_HAT0Y, -1 };
+
+static signed short ff_iforce[] =
+{ FF_PERIODIC, FF_CONSTANT, FF_SPRING, FF_DAMPER,
+ FF_SQUARE, FF_TRIANGLE, FF_SINE, FF_SAW_UP, FF_SAW_DOWN, FF_GAIN,
+ FF_AUTOCENTER, -1 };
+
+static struct iforce_device iforce_device[] = {
+ { 0x044f, 0xa01c, "Thrustmaster Motor Sport GT", btn_wheel, abs_wheel, ff_iforce },
+ { 0x046d, 0xc281, "Logitech WingMan Force", btn_joystick, abs_joystick, ff_iforce },
+ { 0x046d, 0xc291, "Logitech WingMan Formula Force", btn_wheel, abs_wheel, ff_iforce },
+ { 0x05ef, 0x020a, "AVB Top Shot Pegasus", btn_avb_pegasus, abs_avb_pegasus, ff_iforce },
+ { 0x05ef, 0x8884, "AVB Mag Turbo Force", btn_avb_wheel, abs_wheel, ff_iforce },
+ { 0x05ef, 0x8888, "AVB Top Shot Force Feedback Racing Wheel", btn_avb_tw, abs_wheel, ff_iforce }, //?
+ { 0x061c, 0xc0a4, "ACT LABS Force RS", btn_wheel, abs_wheel, ff_iforce }, //?
+ { 0x061c, 0xc084, "ACT LABS Force RS", btn_wheel, abs_wheel, ff_iforce },
+ { 0x06f8, 0x0001, "Guillemot Race Leader Force Feedback", btn_wheel, abs_wheel, ff_iforce }, //?
+ { 0x06f8, 0x0001, "Guillemot Jet Leader Force Feedback", btn_joystick, abs_joystick_rudder, ff_iforce },
+ { 0x06f8, 0x0004, "Guillemot Force Feedback Racing Wheel", btn_wheel, abs_wheel, ff_iforce }, //?
+ { 0x06f8, 0xa302, "Guillemot Jet Leader 3D", btn_joystick, abs_joystick, ff_iforce }, //?
+ { 0x06d6, 0x29bc, "Trust Force Feedback Race Master", btn_wheel, abs_wheel, ff_iforce },
+ { 0x0000, 0x0000, "Unknown I-Force Device [%04x:%04x]", btn_joystick, abs_joystick, ff_iforce }
+};
+
+static int iforce_playback(struct input_dev *dev, int effect_id, int value)
+{
+ struct iforce *iforce = input_get_drvdata(dev);
+ struct iforce_core_effect *core_effect = &iforce->core_effects[effect_id];
+
+ if (value > 0)
+ set_bit(FF_CORE_SHOULD_PLAY, core_effect->flags);
+ else
+ clear_bit(FF_CORE_SHOULD_PLAY, core_effect->flags);
+
+ iforce_control_playback(iforce, effect_id, value);
+ return 0;
+}
+
+static void iforce_set_gain(struct input_dev *dev, u16 gain)
+{
+ struct iforce *iforce = input_get_drvdata(dev);
+ unsigned char data[3];
+
+ data[0] = gain >> 9;
+ iforce_send_packet(iforce, FF_CMD_GAIN, data);
+}
+
+static void iforce_set_autocenter(struct input_dev *dev, u16 magnitude)
+{
+ struct iforce *iforce = input_get_drvdata(dev);
+ unsigned char data[3];
+
+ data[0] = 0x03;
+ data[1] = magnitude >> 9;
+ iforce_send_packet(iforce, FF_CMD_AUTOCENTER, data);
+
+ data[0] = 0x04;
+ data[1] = 0x01;
+ iforce_send_packet(iforce, FF_CMD_AUTOCENTER, data);
+}
+
+/*
+ * Function called when an ioctl is performed on the event dev entry.
+ * It uploads an effect to the device
+ */
+static int iforce_upload_effect(struct input_dev *dev, struct ff_effect *effect, struct ff_effect *old)
+{
+ struct iforce *iforce = input_get_drvdata(dev);
+ struct iforce_core_effect *core_effect = &iforce->core_effects[effect->id];
+ int ret;
+
+ if (__test_and_set_bit(FF_CORE_IS_USED, core_effect->flags)) {
+ /* Check the effect is not already being updated */
+ if (test_bit(FF_CORE_UPDATE, core_effect->flags))
+ return -EAGAIN;
+ }
+
+/*
+ * Upload the effect
+ */
+ switch (effect->type) {
+
+ case FF_PERIODIC:
+ ret = iforce_upload_periodic(iforce, effect, old);
+ break;
+
+ case FF_CONSTANT:
+ ret = iforce_upload_constant(iforce, effect, old);
+ break;
+
+ case FF_SPRING:
+ case FF_DAMPER:
+ ret = iforce_upload_condition(iforce, effect, old);
+ break;
+
+ default:
+ return -EINVAL;
+ }
+
+ if (ret == 0) {
+ /* A packet was sent, forbid new updates until we are notified
+ * that the packet was updated
+ */
+ set_bit(FF_CORE_UPDATE, core_effect->flags);
+ }
+ return ret;
+}
+
+/*
+ * Erases an effect: it frees the effect id and mark as unused the memory
+ * allocated for the parameters
+ */
+static int iforce_erase_effect(struct input_dev *dev, int effect_id)
+{
+ struct iforce *iforce = input_get_drvdata(dev);
+ struct iforce_core_effect *core_effect = &iforce->core_effects[effect_id];
+ int err = 0;
+
+ if (test_bit(FF_MOD1_IS_USED, core_effect->flags))
+ err = release_resource(&core_effect->mod1_chunk);
+
+ if (!err && test_bit(FF_MOD2_IS_USED, core_effect->flags))
+ err = release_resource(&core_effect->mod2_chunk);
+
+ /* TODO: remember to change that if more FF_MOD* bits are added */
+ core_effect->flags[0] = 0;
+
+ return err;
+}
+
+static int iforce_open(struct input_dev *dev)
+{
+ struct iforce *iforce = input_get_drvdata(dev);
+
+ switch (iforce->bus) {
+#ifdef CONFIG_JOYSTICK_IFORCE_USB
+ case IFORCE_USB:
+ iforce->irq->dev = iforce->usbdev;
+ if (usb_submit_urb(iforce->irq, GFP_KERNEL))
+ return -EIO;
+ break;
+#endif
+ }
+
+ if (test_bit(EV_FF, dev->evbit)) {
+ /* Enable force feedback */
+ iforce_send_packet(iforce, FF_CMD_ENABLE, "\004");
+ }
+
+ return 0;
+}
+
+static void iforce_close(struct input_dev *dev)
+{
+ struct iforce *iforce = input_get_drvdata(dev);
+ int i;
+
+ if (test_bit(EV_FF, dev->evbit)) {
+ /* Check: no effects should be present in memory */
+ for (i = 0; i < dev->ff->max_effects; i++) {
+ if (test_bit(FF_CORE_IS_USED, iforce->core_effects[i].flags)) {
+ dev_warn(&dev->dev,
+ "%s: Device still owns effects\n",
+ __func__);
+ break;
+ }
+ }
+
+ /* Disable force feedback playback */
+ iforce_send_packet(iforce, FF_CMD_ENABLE, "\001");
+ /* Wait for the command to complete */
+ wait_event_interruptible(iforce->wait,
+ !test_bit(IFORCE_XMIT_RUNNING, iforce->xmit_flags));
+ }
+
+ switch (iforce->bus) {
+#ifdef CONFIG_JOYSTICK_IFORCE_USB
+ case IFORCE_USB:
+ usb_kill_urb(iforce->irq);
+ usb_kill_urb(iforce->out);
+ usb_kill_urb(iforce->ctrl);
+ break;
+#endif
+#ifdef CONFIG_JOYSTICK_IFORCE_232
+ case IFORCE_232:
+ //TODO: Wait for the last packets to be sent
+ break;
+#endif
+ }
+}
+
+int iforce_init_device(struct iforce *iforce)
+{
+ struct input_dev *input_dev;
+ struct ff_device *ff;
+ unsigned char c[] = "CEOV";
+ int i, error;
+ int ff_effects = 0;
+
+ input_dev = input_allocate_device();
+ if (!input_dev)
+ return -ENOMEM;
+
+ init_waitqueue_head(&iforce->wait);
+ spin_lock_init(&iforce->xmit_lock);
+ mutex_init(&iforce->mem_mutex);
+ iforce->xmit.buf = iforce->xmit_data;
+ iforce->dev = input_dev;
+
+/*
+ * Input device fields.
+ */
+
+ switch (iforce->bus) {
+#ifdef CONFIG_JOYSTICK_IFORCE_USB
+ case IFORCE_USB:
+ input_dev->id.bustype = BUS_USB;
+ input_dev->dev.parent = &iforce->usbdev->dev;
+ break;
+#endif
+#ifdef CONFIG_JOYSTICK_IFORCE_232
+ case IFORCE_232:
+ input_dev->id.bustype = BUS_RS232;
+ input_dev->dev.parent = &iforce->serio->dev;
+ break;
+#endif
+ }
+
+ input_set_drvdata(input_dev, iforce);
+
+ input_dev->name = "Unknown I-Force device";
+ input_dev->open = iforce_open;
+ input_dev->close = iforce_close;
+
+/*
+ * On-device memory allocation.
+ */
+
+ iforce->device_memory.name = "I-Force device effect memory";
+ iforce->device_memory.start = 0;
+ iforce->device_memory.end = 200;
+ iforce->device_memory.flags = IORESOURCE_MEM;
+ iforce->device_memory.parent = NULL;
+ iforce->device_memory.child = NULL;
+ iforce->device_memory.sibling = NULL;
+
+/*
+ * Wait until device ready - until it sends its first response.
+ */
+
+ for (i = 0; i < 20; i++)
+ if (!iforce_get_id_packet(iforce, "O"))
+ break;
+
+ if (i == 20) { /* 5 seconds */
+ err("Timeout waiting for response from device.");
+ error = -ENODEV;
+ goto fail;
+ }
+
+/*
+ * Get device info.
+ */
+
+ if (!iforce_get_id_packet(iforce, "M"))
+ input_dev->id.vendor = (iforce->edata[2] << 8) | iforce->edata[1];
+ else
+ dev_warn(&iforce->dev->dev, "Device does not respond to id packet M\n");
+
+ if (!iforce_get_id_packet(iforce, "P"))
+ input_dev->id.product = (iforce->edata[2] << 8) | iforce->edata[1];
+ else
+ dev_warn(&iforce->dev->dev, "Device does not respond to id packet P\n");
+
+ if (!iforce_get_id_packet(iforce, "B"))
+ iforce->device_memory.end = (iforce->edata[2] << 8) | iforce->edata[1];
+ else
+ dev_warn(&iforce->dev->dev, "Device does not respond to id packet B\n");
+
+ if (!iforce_get_id_packet(iforce, "N"))
+ ff_effects = iforce->edata[1];
+ else
+ dev_warn(&iforce->dev->dev, "Device does not respond to id packet N\n");
+
+ /* Check if the device can store more effects than the driver can really handle */
+ if (ff_effects > IFORCE_EFFECTS_MAX) {
+ dev_warn(&iforce->dev->dev, "Limiting number of effects to %d (device reports %d)\n",
+ IFORCE_EFFECTS_MAX, ff_effects);
+ ff_effects = IFORCE_EFFECTS_MAX;
+ }
+
+/*
+ * Display additional info.
+ */
+
+ for (i = 0; c[i]; i++)
+ if (!iforce_get_id_packet(iforce, c + i))
+ iforce_dump_packet("info", iforce->ecmd, iforce->edata);
+
+/*
+ * Disable spring, enable force feedback.
+ */
+ iforce_set_autocenter(input_dev, 0);
+
+/*
+ * Find appropriate device entry
+ */
+
+ for (i = 0; iforce_device[i].idvendor; i++)
+ if (iforce_device[i].idvendor == input_dev->id.vendor &&
+ iforce_device[i].idproduct == input_dev->id.product)
+ break;
+
+ iforce->type = iforce_device + i;
+ input_dev->name = iforce->type->name;
+
+/*
+ * Set input device bitfields and ranges.
+ */
+
+ input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS) |
+ BIT_MASK(EV_FF_STATUS);
+
+ for (i = 0; iforce->type->btn[i] >= 0; i++)
+ set_bit(iforce->type->btn[i], input_dev->keybit);
+ set_bit(BTN_DEAD, input_dev->keybit);
+
+ for (i = 0; iforce->type->abs[i] >= 0; i++) {
+
+ signed short t = iforce->type->abs[i];
+
+ switch (t) {
+
+ case ABS_X:
+ case ABS_Y:
+ case ABS_WHEEL:
+
+ input_set_abs_params(input_dev, t, -1920, 1920, 16, 128);
+ set_bit(t, input_dev->ffbit);
+ break;
+
+ case ABS_THROTTLE:
+ case ABS_GAS:
+ case ABS_BRAKE:
+
+ input_set_abs_params(input_dev, t, 0, 255, 0, 0);
+ break;
+
+ case ABS_RUDDER:
+
+ input_set_abs_params(input_dev, t, -128, 127, 0, 0);
+ break;
+
+ case ABS_HAT0X:
+ case ABS_HAT0Y:
+ case ABS_HAT1X:
+ case ABS_HAT1Y:
+
+ input_set_abs_params(input_dev, t, -1, 1, 0, 0);
+ break;
+ }
+ }
+
+ if (ff_effects) {
+
+ for (i = 0; iforce->type->ff[i] >= 0; i++)
+ set_bit(iforce->type->ff[i], input_dev->ffbit);
+
+ error = input_ff_create(input_dev, ff_effects);
+ if (error)
+ goto fail;
+
+ ff = input_dev->ff;
+ ff->upload = iforce_upload_effect;
+ ff->erase = iforce_erase_effect;
+ ff->set_gain = iforce_set_gain;
+ ff->set_autocenter = iforce_set_autocenter;
+ ff->playback = iforce_playback;
+ }
+/*
+ * Register input device.
+ */
+
+ error = input_register_device(iforce->dev);
+ if (error)
+ goto fail;
+
+ return 0;
+
+ fail: input_free_device(input_dev);
+ return error;
+}
+
+static int __init iforce_init(void)
+{
+ int err = 0;
+
+#ifdef CONFIG_JOYSTICK_IFORCE_USB
+ err = usb_register(&iforce_usb_driver);
+ if (err)
+ return err;
+#endif
+#ifdef CONFIG_JOYSTICK_IFORCE_232
+ err = serio_register_driver(&iforce_serio_drv);
+#ifdef CONFIG_JOYSTICK_IFORCE_USB
+ if (err)
+ usb_deregister(&iforce_usb_driver);
+#endif
+#endif
+ return err;
+}
+
+static void __exit iforce_exit(void)
+{
+#ifdef CONFIG_JOYSTICK_IFORCE_USB
+ usb_deregister(&iforce_usb_driver);
+#endif
+#ifdef CONFIG_JOYSTICK_IFORCE_232
+ serio_unregister_driver(&iforce_serio_drv);
+#endif
+}
+
+module_init(iforce_init);
+module_exit(iforce_exit);
diff --git a/drivers/input/joystick/iforce/iforce-packets.c b/drivers/input/joystick/iforce/iforce-packets.c
new file mode 100644
index 0000000..a17b500
--- /dev/null
+++ b/drivers/input/joystick/iforce/iforce-packets.c
@@ -0,0 +1,303 @@
+/*
+ * Copyright (c) 2000-2002 Vojtech Pavlik <vojtech@ucw.cz>
+ * Copyright (c) 2001-2002, 2007 Johann Deneux <johann.deneux@gmail.com>
+ *
+ * USB/RS232 I-Force joysticks and wheels.
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * Should you need to contact me, the author, you can do so either by
+ * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
+ * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
+ */
+
+#include "iforce.h"
+
+static struct {
+ __s32 x;
+ __s32 y;
+} iforce_hat_to_axis[16] = {{ 0,-1}, { 1,-1}, { 1, 0}, { 1, 1}, { 0, 1}, {-1, 1}, {-1, 0}, {-1,-1}};
+
+
+void iforce_dump_packet(char *msg, u16 cmd, unsigned char *data)
+{
+ int i;
+
+ printk(KERN_DEBUG __FILE__ ": %s cmd = %04x, data = ", msg, cmd);
+ for (i = 0; i < LO(cmd); i++)
+ printk("%02x ", data[i]);
+ printk("\n");
+}
+
+/*
+ * Send a packet of bytes to the device
+ */
+int iforce_send_packet(struct iforce *iforce, u16 cmd, unsigned char* data)
+{
+ /* Copy data to buffer */
+ int n = LO(cmd);
+ int c;
+ int empty;
+ int head, tail;
+ unsigned long flags;
+
+/*
+ * Update head and tail of xmit buffer
+ */
+ spin_lock_irqsave(&iforce->xmit_lock, flags);
+
+ head = iforce->xmit.head;
+ tail = iforce->xmit.tail;
+
+
+ if (CIRC_SPACE(head, tail, XMIT_SIZE) < n+2) {
+ dev_warn(&iforce->dev->dev,
+ "not enough space in xmit buffer to send new packet\n");
+ spin_unlock_irqrestore(&iforce->xmit_lock, flags);
+ return -1;
+ }
+
+ empty = head == tail;
+ XMIT_INC(iforce->xmit.head, n+2);
+
+/*
+ * Store packet in xmit buffer
+ */
+ iforce->xmit.buf[head] = HI(cmd);
+ XMIT_INC(head, 1);
+ iforce->xmit.buf[head] = LO(cmd);
+ XMIT_INC(head, 1);
+
+ c = CIRC_SPACE_TO_END(head, tail, XMIT_SIZE);
+ if (n < c) c=n;
+
+ memcpy(&iforce->xmit.buf[head],
+ data,
+ c);
+ if (n != c) {
+ memcpy(&iforce->xmit.buf[0],
+ data + c,
+ n - c);
+ }
+ XMIT_INC(head, n);
+
+ spin_unlock_irqrestore(&iforce->xmit_lock, flags);
+/*
+ * If necessary, start the transmission
+ */
+ switch (iforce->bus) {
+
+#ifdef CONFIG_JOYSTICK_IFORCE_232
+ case IFORCE_232:
+ if (empty)
+ iforce_serial_xmit(iforce);
+ break;
+#endif
+#ifdef CONFIG_JOYSTICK_IFORCE_USB
+ case IFORCE_USB:
+
+ if (iforce->usbdev && empty &&
+ !test_and_set_bit(IFORCE_XMIT_RUNNING, iforce->xmit_flags)) {
+
+ iforce_usb_xmit(iforce);
+ }
+ break;
+#endif
+ }
+ return 0;
+}
+
+/* Start or stop an effect */
+int iforce_control_playback(struct iforce* iforce, u16 id, unsigned int value)
+{
+ unsigned char data[3];
+
+ data[0] = LO(id);
+ data[1] = (value > 0) ? ((value > 1) ? 0x41 : 0x01) : 0;
+ data[2] = LO(value);
+ return iforce_send_packet(iforce, FF_CMD_PLAY, data);
+}
+
+/* Mark an effect that was being updated as ready. That means it can be updated
+ * again */
+static int mark_core_as_ready(struct iforce *iforce, unsigned short addr)
+{
+ int i;
+
+ if (!iforce->dev->ff)
+ return 0;
+
+ for (i = 0; i < iforce->dev->ff->max_effects; ++i) {
+ if (test_bit(FF_CORE_IS_USED, iforce->core_effects[i].flags) &&
+ (iforce->core_effects[i].mod1_chunk.start == addr ||
+ iforce->core_effects[i].mod2_chunk.start == addr)) {
+ clear_bit(FF_CORE_UPDATE, iforce->core_effects[i].flags);
+ return 0;
+ }
+ }
+ dev_warn(&iforce->dev->dev, "unused effect %04x updated !!!\n", addr);
+ return -1;
+}
+
+void iforce_process_packet(struct iforce *iforce, u16 cmd, unsigned char *data)
+{
+ struct input_dev *dev = iforce->dev;
+ int i;
+ static int being_used = 0;
+
+ if (being_used)
+ dev_warn(&iforce->dev->dev,
+ "re-entrant call to iforce_process %d\n", being_used);
+ being_used++;
+
+#ifdef CONFIG_JOYSTICK_IFORCE_232
+ if (HI(iforce->expect_packet) == HI(cmd)) {
+ iforce->expect_packet = 0;
+ iforce->ecmd = cmd;
+ memcpy(iforce->edata, data, IFORCE_MAX_LENGTH);
+ }
+#endif
+ wake_up(&iforce->wait);
+
+ if (!iforce->type) {
+ being_used--;
+ return;
+ }
+
+ switch (HI(cmd)) {
+
+ case 0x01: /* joystick position data */
+ case 0x03: /* wheel position data */
+ if (HI(cmd) == 1) {
+ input_report_abs(dev, ABS_X, (__s16) (((__s16)data[1] << 8) | data[0]));
+ input_report_abs(dev, ABS_Y, (__s16) (((__s16)data[3] << 8) | data[2]));
+ input_report_abs(dev, ABS_THROTTLE, 255 - data[4]);
+ if (LO(cmd) >= 8 && test_bit(ABS_RUDDER ,dev->absbit))
+ input_report_abs(dev, ABS_RUDDER, (__s8)data[7]);
+ } else {
+ input_report_abs(dev, ABS_WHEEL, (__s16) (((__s16)data[1] << 8) | data[0]));
+ input_report_abs(dev, ABS_GAS, 255 - data[2]);
+ input_report_abs(dev, ABS_BRAKE, 255 - data[3]);
+ }
+
+ input_report_abs(dev, ABS_HAT0X, iforce_hat_to_axis[data[6] >> 4].x);
+ input_report_abs(dev, ABS_HAT0Y, iforce_hat_to_axis[data[6] >> 4].y);
+
+ for (i = 0; iforce->type->btn[i] >= 0; i++)
+ input_report_key(dev, iforce->type->btn[i], data[(i >> 3) + 5] & (1 << (i & 7)));
+
+ /* If there are untouched bits left, interpret them as the second hat */
+ if (i <= 8) {
+ int btns = data[6];
+ if (test_bit(ABS_HAT1X, dev->absbit)) {
+ if (btns & 8) input_report_abs(dev, ABS_HAT1X, -1);
+ else if (btns & 2) input_report_abs(dev, ABS_HAT1X, 1);
+ else input_report_abs(dev, ABS_HAT1X, 0);
+ }
+ if (test_bit(ABS_HAT1Y, dev->absbit)) {
+ if (btns & 1) input_report_abs(dev, ABS_HAT1Y, -1);
+ else if (btns & 4) input_report_abs(dev, ABS_HAT1Y, 1);
+ else input_report_abs(dev, ABS_HAT1Y, 0);
+ }
+ }
+
+ input_sync(dev);
+
+ break;
+
+ case 0x02: /* status report */
+ input_report_key(dev, BTN_DEAD, data[0] & 0x02);
+ input_sync(dev);
+
+ /* Check if an effect was just started or stopped */
+ i = data[1] & 0x7f;
+ if (data[1] & 0x80) {
+ if (!test_and_set_bit(FF_CORE_IS_PLAYED, iforce->core_effects[i].flags)) {
+ /* Report play event */
+ input_report_ff_status(dev, i, FF_STATUS_PLAYING);
+ }
+ } else if (test_and_clear_bit(FF_CORE_IS_PLAYED, iforce->core_effects[i].flags)) {
+ /* Report stop event */
+ input_report_ff_status(dev, i, FF_STATUS_STOPPED);
+ }
+ if (LO(cmd) > 3) {
+ int j;
+ for (j = 3; j < LO(cmd); j += 2)
+ mark_core_as_ready(iforce, data[j] | (data[j+1]<<8));
+ }
+ break;
+ }
+ being_used--;
+}
+
+int iforce_get_id_packet(struct iforce *iforce, char *packet)
+{
+ switch (iforce->bus) {
+
+ case IFORCE_USB: {
+#ifdef CONFIG_JOYSTICK_IFORCE_USB
+ int status;
+
+ iforce->cr.bRequest = packet[0];
+ iforce->ctrl->dev = iforce->usbdev;
+
+ status = usb_submit_urb(iforce->ctrl, GFP_ATOMIC);
+ if (status) {
+ err("usb_submit_urb failed %d", status);
+ return -1;
+ }
+
+ wait_event_interruptible_timeout(iforce->wait,
+ iforce->ctrl->status != -EINPROGRESS, HZ);
+
+ if (iforce->ctrl->status) {
+ dbg("iforce->ctrl->status = %d", iforce->ctrl->status);
+ usb_unlink_urb(iforce->ctrl);
+ return -1;
+ }
+#else
+ dbg("iforce_get_id_packet: iforce->bus = USB!");
+#endif
+ }
+ break;
+
+ case IFORCE_232:
+
+#ifdef CONFIG_JOYSTICK_IFORCE_232
+ iforce->expect_packet = FF_CMD_QUERY;
+ iforce_send_packet(iforce, FF_CMD_QUERY, packet);
+
+ wait_event_interruptible_timeout(iforce->wait,
+ !iforce->expect_packet, HZ);
+
+ if (iforce->expect_packet) {
+ iforce->expect_packet = 0;
+ return -1;
+ }
+#else
+ err("iforce_get_id_packet: iforce->bus = SERIO!");
+#endif
+ break;
+
+ default:
+ err("iforce_get_id_packet: iforce->bus = %d", iforce->bus);
+ break;
+ }
+
+ return -(iforce->edata[0] != packet[0]);
+}
+
diff --git a/drivers/input/joystick/iforce/iforce-serio.c b/drivers/input/joystick/iforce/iforce-serio.c
new file mode 100644
index 0000000..46d5041
--- /dev/null
+++ b/drivers/input/joystick/iforce/iforce-serio.c
@@ -0,0 +1,189 @@
+/*
+ * Copyright (c) 2000-2001 Vojtech Pavlik <vojtech@ucw.cz>
+ * Copyright (c) 2001, 2007 Johann Deneux <johann.deneux@gmail.com>
+ *
+ * USB/RS232 I-Force joysticks and wheels.
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * Should you need to contact me, the author, you can do so either by
+ * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
+ * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
+ */
+
+#include "iforce.h"
+
+void iforce_serial_xmit(struct iforce *iforce)
+{
+ unsigned char cs;
+ int i;
+ unsigned long flags;
+
+ if (test_and_set_bit(IFORCE_XMIT_RUNNING, iforce->xmit_flags)) {
+ set_bit(IFORCE_XMIT_AGAIN, iforce->xmit_flags);
+ return;
+ }
+
+ spin_lock_irqsave(&iforce->xmit_lock, flags);
+
+again:
+ if (iforce->xmit.head == iforce->xmit.tail) {
+ clear_bit(IFORCE_XMIT_RUNNING, iforce->xmit_flags);
+ spin_unlock_irqrestore(&iforce->xmit_lock, flags);
+ return;
+ }
+
+ cs = 0x2b;
+
+ serio_write(iforce->serio, 0x2b);
+
+ serio_write(iforce->serio, iforce->xmit.buf[iforce->xmit.tail]);
+ cs ^= iforce->xmit.buf[iforce->xmit.tail];
+ XMIT_INC(iforce->xmit.tail, 1);
+
+ for (i=iforce->xmit.buf[iforce->xmit.tail]; i >= 0; --i) {
+ serio_write(iforce->serio, iforce->xmit.buf[iforce->xmit.tail]);
+ cs ^= iforce->xmit.buf[iforce->xmit.tail];
+ XMIT_INC(iforce->xmit.tail, 1);
+ }
+
+ serio_write(iforce->serio, cs);
+
+ if (test_and_clear_bit(IFORCE_XMIT_AGAIN, iforce->xmit_flags))
+ goto again;
+
+ clear_bit(IFORCE_XMIT_RUNNING, iforce->xmit_flags);
+
+ spin_unlock_irqrestore(&iforce->xmit_lock, flags);
+}
+
+static void iforce_serio_write_wakeup(struct serio *serio)
+{
+ struct iforce *iforce = serio_get_drvdata(serio);
+
+ iforce_serial_xmit(iforce);
+}
+
+static irqreturn_t iforce_serio_irq(struct serio *serio,
+ unsigned char data, unsigned int flags)
+{
+ struct iforce *iforce = serio_get_drvdata(serio);
+
+ if (!iforce->pkt) {
+ if (data == 0x2b)
+ iforce->pkt = 1;
+ goto out;
+ }
+
+ if (!iforce->id) {
+ if (data > 3 && data != 0xff)
+ iforce->pkt = 0;
+ else
+ iforce->id = data;
+ goto out;
+ }
+
+ if (!iforce->len) {
+ if (data > IFORCE_MAX_LENGTH) {
+ iforce->pkt = 0;
+ iforce->id = 0;
+ } else {
+ iforce->len = data;
+ }
+ goto out;
+ }
+
+ if (iforce->idx < iforce->len) {
+ iforce->csum += iforce->data[iforce->idx++] = data;
+ goto out;
+ }
+
+ if (iforce->idx == iforce->len) {
+ iforce_process_packet(iforce, (iforce->id << 8) | iforce->idx, iforce->data);
+ iforce->pkt = 0;
+ iforce->id = 0;
+ iforce->len = 0;
+ iforce->idx = 0;
+ iforce->csum = 0;
+ }
+out:
+ return IRQ_HANDLED;
+}
+
+static int iforce_serio_connect(struct serio *serio, struct serio_driver *drv)
+{
+ struct iforce *iforce;
+ int err;
+
+ iforce = kzalloc(sizeof(struct iforce), GFP_KERNEL);
+ if (!iforce)
+ return -ENOMEM;
+
+ iforce->bus = IFORCE_232;
+ iforce->serio = serio;
+
+ serio_set_drvdata(serio, iforce);
+
+ err = serio_open(serio, drv);
+ if (err)
+ goto fail1;
+
+ err = iforce_init_device(iforce);
+ if (err)
+ goto fail2;
+
+ return 0;
+
+ fail2: serio_close(serio);
+ fail1: serio_set_drvdata(serio, NULL);
+ kfree(iforce);
+ return err;
+}
+
+static void iforce_serio_disconnect(struct serio *serio)
+{
+ struct iforce *iforce = serio_get_drvdata(serio);
+
+ input_unregister_device(iforce->dev);
+ serio_close(serio);
+ serio_set_drvdata(serio, NULL);
+ kfree(iforce);
+}
+
+static struct serio_device_id iforce_serio_ids[] = {
+ {
+ .type = SERIO_RS232,
+ .proto = SERIO_IFORCE,
+ .id = SERIO_ANY,
+ .extra = SERIO_ANY,
+ },
+ { 0 }
+};
+
+MODULE_DEVICE_TABLE(serio, iforce_serio_ids);
+
+struct serio_driver iforce_serio_drv = {
+ .driver = {
+ .name = "iforce",
+ },
+ .description = "RS232 I-Force joysticks and wheels driver",
+ .id_table = iforce_serio_ids,
+ .write_wakeup = iforce_serio_write_wakeup,
+ .interrupt = iforce_serio_irq,
+ .connect = iforce_serio_connect,
+ .disconnect = iforce_serio_disconnect,
+};
diff --git a/drivers/input/joystick/iforce/iforce-usb.c b/drivers/input/joystick/iforce/iforce-usb.c
new file mode 100644
index 0000000..6c96631
--- /dev/null
+++ b/drivers/input/joystick/iforce/iforce-usb.c
@@ -0,0 +1,228 @@
+ /*
+ * Copyright (c) 2000-2002 Vojtech Pavlik <vojtech@ucw.cz>
+ * Copyright (c) 2001-2002, 2007 Johann Deneux <johann.deneux@gmail.com>
+ *
+ * USB/RS232 I-Force joysticks and wheels.
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * Should you need to contact me, the author, you can do so either by
+ * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
+ * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
+ */
+
+#include "iforce.h"
+
+void iforce_usb_xmit(struct iforce *iforce)
+{
+ int n, c;
+ unsigned long flags;
+
+ spin_lock_irqsave(&iforce->xmit_lock, flags);
+
+ if (iforce->xmit.head == iforce->xmit.tail) {
+ clear_bit(IFORCE_XMIT_RUNNING, iforce->xmit_flags);
+ spin_unlock_irqrestore(&iforce->xmit_lock, flags);
+ return;
+ }
+
+ ((char *)iforce->out->transfer_buffer)[0] = iforce->xmit.buf[iforce->xmit.tail];
+ XMIT_INC(iforce->xmit.tail, 1);
+ n = iforce->xmit.buf[iforce->xmit.tail];
+ XMIT_INC(iforce->xmit.tail, 1);
+
+ iforce->out->transfer_buffer_length = n + 1;
+ iforce->out->dev = iforce->usbdev;
+
+ /* Copy rest of data then */
+ c = CIRC_CNT_TO_END(iforce->xmit.head, iforce->xmit.tail, XMIT_SIZE);
+ if (n < c) c=n;
+
+ memcpy(iforce->out->transfer_buffer + 1,
+ &iforce->xmit.buf[iforce->xmit.tail],
+ c);
+ if (n != c) {
+ memcpy(iforce->out->transfer_buffer + 1 + c,
+ &iforce->xmit.buf[0],
+ n-c);
+ }
+ XMIT_INC(iforce->xmit.tail, n);
+
+ if ( (n=usb_submit_urb(iforce->out, GFP_ATOMIC)) ) {
+ clear_bit(IFORCE_XMIT_RUNNING, iforce->xmit_flags);
+ dev_warn(&iforce->dev->dev, "usb_submit_urb failed %d\n", n);
+ }
+
+ /* The IFORCE_XMIT_RUNNING bit is not cleared here. That's intended.
+ * As long as the urb completion handler is not called, the transmiting
+ * is considered to be running */
+ spin_unlock_irqrestore(&iforce->xmit_lock, flags);
+}
+
+static void iforce_usb_irq(struct urb *urb)
+{
+ struct iforce *iforce = urb->context;
+ int status;
+
+ switch (urb->status) {
+ case 0:
+ /* success */
+ break;
+ case -ECONNRESET:
+ case -ENOENT:
+ case -ESHUTDOWN:
+ /* this urb is terminated, clean up */
+ dbg("%s - urb shutting down with status: %d",
+ __func__, urb->status);
+ return;
+ default:
+ dbg("%s - urb has status of: %d", __func__, urb->status);
+ goto exit;
+ }
+
+ iforce_process_packet(iforce,
+ (iforce->data[0] << 8) | (urb->actual_length - 1), iforce->data + 1);
+
+exit:
+ status = usb_submit_urb (urb, GFP_ATOMIC);
+ if (status)
+ err ("%s - usb_submit_urb failed with result %d",
+ __func__, status);
+}
+
+static void iforce_usb_out(struct urb *urb)
+{
+ struct iforce *iforce = urb->context;
+
+ if (urb->status) {
+ clear_bit(IFORCE_XMIT_RUNNING, iforce->xmit_flags);
+ dbg("urb->status %d, exiting", urb->status);
+ return;
+ }
+
+ iforce_usb_xmit(iforce);
+
+ wake_up(&iforce->wait);
+}
+
+static void iforce_usb_ctrl(struct urb *urb)
+{
+ struct iforce *iforce = urb->context;
+ if (urb->status) return;
+ iforce->ecmd = 0xff00 | urb->actual_length;
+ wake_up(&iforce->wait);
+}
+
+static int iforce_usb_probe(struct usb_interface *intf,
+ const struct usb_device_id *id)
+{
+ struct usb_device *dev = interface_to_usbdev(intf);
+ struct usb_host_interface *interface;
+ struct usb_endpoint_descriptor *epirq, *epout;
+ struct iforce *iforce;
+ int err = -ENOMEM;
+
+ interface = intf->cur_altsetting;
+
+ epirq = &interface->endpoint[0].desc;
+ epout = &interface->endpoint[1].desc;
+
+ if (!(iforce = kzalloc(sizeof(struct iforce) + 32, GFP_KERNEL)))
+ goto fail;
+
+ if (!(iforce->irq = usb_alloc_urb(0, GFP_KERNEL)))
+ goto fail;
+
+ if (!(iforce->out = usb_alloc_urb(0, GFP_KERNEL)))
+ goto fail;
+
+ if (!(iforce->ctrl = usb_alloc_urb(0, GFP_KERNEL)))
+ goto fail;
+
+ iforce->bus = IFORCE_USB;
+ iforce->usbdev = dev;
+
+ iforce->cr.bRequestType = USB_TYPE_VENDOR | USB_DIR_IN | USB_RECIP_INTERFACE;
+ iforce->cr.wIndex = 0;
+ iforce->cr.wLength = cpu_to_le16(16);
+
+ usb_fill_int_urb(iforce->irq, dev, usb_rcvintpipe(dev, epirq->bEndpointAddress),
+ iforce->data, 16, iforce_usb_irq, iforce, epirq->bInterval);
+
+ usb_fill_int_urb(iforce->out, dev, usb_sndintpipe(dev, epout->bEndpointAddress),
+ iforce + 1, 32, iforce_usb_out, iforce, epout->bInterval);
+
+ usb_fill_control_urb(iforce->ctrl, dev, usb_rcvctrlpipe(dev, 0),
+ (void*) &iforce->cr, iforce->edata, 16, iforce_usb_ctrl, iforce);
+
+ err = iforce_init_device(iforce);
+ if (err)
+ goto fail;
+
+ usb_set_intfdata(intf, iforce);
+ return 0;
+
+fail:
+ if (iforce) {
+ usb_free_urb(iforce->irq);
+ usb_free_urb(iforce->out);
+ usb_free_urb(iforce->ctrl);
+ kfree(iforce);
+ }
+
+ return err;
+}
+
+static void iforce_usb_disconnect(struct usb_interface *intf)
+{
+ struct iforce *iforce = usb_get_intfdata(intf);
+
+ usb_set_intfdata(intf, NULL);
+
+ input_unregister_device(iforce->dev);
+
+ usb_free_urb(iforce->irq);
+ usb_free_urb(iforce->out);
+ usb_free_urb(iforce->ctrl);
+
+ kfree(iforce);
+}
+
+static struct usb_device_id iforce_usb_ids [] = {
+ { USB_DEVICE(0x044f, 0xa01c) }, /* Thrustmaster Motor Sport GT */
+ { USB_DEVICE(0x046d, 0xc281) }, /* Logitech WingMan Force */
+ { USB_DEVICE(0x046d, 0xc291) }, /* Logitech WingMan Formula Force */
+ { USB_DEVICE(0x05ef, 0x020a) }, /* AVB Top Shot Pegasus */
+ { USB_DEVICE(0x05ef, 0x8884) }, /* AVB Mag Turbo Force */
+ { USB_DEVICE(0x05ef, 0x8888) }, /* AVB Top Shot FFB Racing Wheel */
+ { USB_DEVICE(0x061c, 0xc0a4) }, /* ACT LABS Force RS */
+ { USB_DEVICE(0x061c, 0xc084) }, /* ACT LABS Force RS */
+ { USB_DEVICE(0x06f8, 0x0001) }, /* Guillemot Race Leader Force Feedback */
+ { USB_DEVICE(0x06f8, 0x0003) }, /* Guillemot Jet Leader Force Feedback */
+ { USB_DEVICE(0x06f8, 0x0004) }, /* Guillemot Force Feedback Racing Wheel */
+ { USB_DEVICE(0x06f8, 0xa302) }, /* Guillemot Jet Leader 3D */
+ { } /* Terminating entry */
+};
+
+MODULE_DEVICE_TABLE (usb, iforce_usb_ids);
+
+struct usb_driver iforce_usb_driver = {
+ .name = "iforce",
+ .probe = iforce_usb_probe,
+ .disconnect = iforce_usb_disconnect,
+ .id_table = iforce_usb_ids,
+};
diff --git a/drivers/input/joystick/iforce/iforce.h b/drivers/input/joystick/iforce/iforce.h
new file mode 100644
index 0000000..9f494b7
--- /dev/null
+++ b/drivers/input/joystick/iforce/iforce.h
@@ -0,0 +1,171 @@
+/*
+ * Copyright (c) 2000-2002 Vojtech Pavlik <vojtech@ucw.cz>
+ * Copyright (c) 2001-2002, 2007 Johann Deneux <johann.deneux@gmail.com>
+ *
+ * USB/RS232 I-Force joysticks and wheels.
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * Should you need to contact me, the author, you can do so either by
+ * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
+ * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
+ */
+
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/input.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/spinlock.h>
+#include <linux/usb.h>
+#include <linux/serio.h>
+#include <linux/circ_buf.h>
+#include <linux/mutex.h>
+
+/* This module provides arbitrary resource management routines.
+ * I use it to manage the device's memory.
+ * Despite the name of this module, I am *not* going to access the ioports.
+ */
+#include <linux/ioport.h>
+
+
+#define IFORCE_MAX_LENGTH 16
+
+/* iforce::bus */
+#define IFORCE_232 1
+#define IFORCE_USB 2
+
+#define IFORCE_EFFECTS_MAX 32
+
+/* Each force feedback effect is made of one core effect, which can be
+ * associated to at most to effect modifiers
+ */
+#define FF_MOD1_IS_USED 0
+#define FF_MOD2_IS_USED 1
+#define FF_CORE_IS_USED 2
+#define FF_CORE_IS_PLAYED 3 /* Effect is currently being played */
+#define FF_CORE_SHOULD_PLAY 4 /* User wants the effect to be played */
+#define FF_CORE_UPDATE 5 /* Effect is being updated */
+#define FF_MODCORE_CNT 6
+
+struct iforce_core_effect {
+ /* Information about where modifiers are stored in the device's memory */
+ struct resource mod1_chunk;
+ struct resource mod2_chunk;
+ unsigned long flags[BITS_TO_LONGS(FF_MODCORE_CNT)];
+};
+
+#define FF_CMD_EFFECT 0x010e
+#define FF_CMD_ENVELOPE 0x0208
+#define FF_CMD_MAGNITUDE 0x0303
+#define FF_CMD_PERIOD 0x0407
+#define FF_CMD_CONDITION 0x050a
+
+#define FF_CMD_AUTOCENTER 0x4002
+#define FF_CMD_PLAY 0x4103
+#define FF_CMD_ENABLE 0x4201
+#define FF_CMD_GAIN 0x4301
+
+#define FF_CMD_QUERY 0xff01
+
+/* Buffer for async write */
+#define XMIT_SIZE 256
+#define XMIT_INC(var, n) (var)+=n; (var)&= XMIT_SIZE -1
+/* iforce::xmit_flags */
+#define IFORCE_XMIT_RUNNING 0
+#define IFORCE_XMIT_AGAIN 1
+
+struct iforce_device {
+ u16 idvendor;
+ u16 idproduct;
+ char *name;
+ signed short *btn;
+ signed short *abs;
+ signed short *ff;
+};
+
+struct iforce {
+ struct input_dev *dev; /* Input device interface */
+ struct iforce_device *type;
+ int bus;
+
+ unsigned char data[IFORCE_MAX_LENGTH];
+ unsigned char edata[IFORCE_MAX_LENGTH];
+ u16 ecmd;
+ u16 expect_packet;
+
+#ifdef CONFIG_JOYSTICK_IFORCE_232
+ struct serio *serio; /* RS232 transfer */
+ int idx, pkt, len, id;
+ unsigned char csum;
+#endif
+#ifdef CONFIG_JOYSTICK_IFORCE_USB
+ struct usb_device *usbdev; /* USB transfer */
+ struct urb *irq, *out, *ctrl;
+ struct usb_ctrlrequest cr;
+#endif
+ spinlock_t xmit_lock;
+ /* Buffer used for asynchronous sending of bytes to the device */
+ struct circ_buf xmit;
+ unsigned char xmit_data[XMIT_SIZE];
+ unsigned long xmit_flags[1];
+
+ /* Force Feedback */
+ wait_queue_head_t wait;
+ struct resource device_memory;
+ struct iforce_core_effect core_effects[IFORCE_EFFECTS_MAX];
+ struct mutex mem_mutex;
+};
+
+/* Get hi and low bytes of a 16-bits int */
+#define HI(a) ((unsigned char)((a) >> 8))
+#define LO(a) ((unsigned char)((a) & 0xff))
+
+/* For many parameters, it seems that 0x80 is a special value that should
+ * be avoided. Instead, we replace this value by 0x7f
+ */
+#define HIFIX80(a) ((unsigned char)(((a)<0? (a)+255 : (a))>>8))
+
+/* Encode a time value */
+#define TIME_SCALE(a) (a)
+
+
+/* Public functions */
+/* iforce-serio.c */
+void iforce_serial_xmit(struct iforce *iforce);
+
+/* iforce-usb.c */
+void iforce_usb_xmit(struct iforce *iforce);
+
+/* iforce-main.c */
+int iforce_init_device(struct iforce *iforce);
+
+/* iforce-packets.c */
+int iforce_control_playback(struct iforce*, u16 id, unsigned int);
+void iforce_process_packet(struct iforce *iforce, u16 cmd, unsigned char *data);
+int iforce_send_packet(struct iforce *iforce, u16 cmd, unsigned char* data);
+void iforce_dump_packet(char *msg, u16 cmd, unsigned char *data) ;
+int iforce_get_id_packet(struct iforce *iforce, char *packet);
+
+/* iforce-ff.c */
+int iforce_upload_periodic(struct iforce *, struct ff_effect *, struct ff_effect *);
+int iforce_upload_constant(struct iforce *, struct ff_effect *, struct ff_effect *);
+int iforce_upload_condition(struct iforce *, struct ff_effect *, struct ff_effect *);
+
+/* Public variables */
+extern struct serio_driver iforce_serio_drv;
+extern struct usb_driver iforce_usb_driver;
diff --git a/drivers/input/joystick/interact.c b/drivers/input/joystick/interact.c
new file mode 100644
index 0000000..16fb19d
--- /dev/null
+++ b/drivers/input/joystick/interact.c
@@ -0,0 +1,325 @@
+/*
+ * Copyright (c) 2001 Vojtech Pavlik
+ *
+ * Based on the work of:
+ * Toby Deshane
+ */
+
+/*
+ * InterAct digital gamepad/joystick driver for Linux
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * Should you need to contact me, the author, you can do so either by
+ * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
+ * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
+ */
+
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/delay.h>
+#include <linux/init.h>
+#include <linux/gameport.h>
+#include <linux/input.h>
+#include <linux/jiffies.h>
+
+#define DRIVER_DESC "InterAct digital joystick driver"
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+#define INTERACT_MAX_START 600 /* 400 us */
+#define INTERACT_MAX_STROBE 60 /* 40 us */
+#define INTERACT_MAX_LENGTH 32 /* 32 bits */
+
+#define INTERACT_TYPE_HHFX 0 /* HammerHead/FX */
+#define INTERACT_TYPE_PP8D 1 /* ProPad 8 */
+
+struct interact {
+ struct gameport *gameport;
+ struct input_dev *dev;
+ int bads;
+ int reads;
+ unsigned char type;
+ unsigned char length;
+ char phys[32];
+};
+
+static short interact_abs_hhfx[] =
+ { ABS_RX, ABS_RY, ABS_X, ABS_Y, ABS_HAT0X, ABS_HAT0Y, -1 };
+static short interact_abs_pp8d[] =
+ { ABS_X, ABS_Y, -1 };
+
+static short interact_btn_hhfx[] =
+ { BTN_TR, BTN_X, BTN_Y, BTN_Z, BTN_A, BTN_B, BTN_C, BTN_TL, BTN_TL2, BTN_TR2, BTN_MODE, BTN_SELECT, -1 };
+static short interact_btn_pp8d[] =
+ { BTN_C, BTN_TL, BTN_TR, BTN_A, BTN_B, BTN_Y, BTN_Z, BTN_X, -1 };
+
+struct interact_type {
+ int id;
+ short *abs;
+ short *btn;
+ char *name;
+ unsigned char length;
+ unsigned char b8;
+};
+
+static struct interact_type interact_type[] = {
+ { 0x6202, interact_abs_hhfx, interact_btn_hhfx, "InterAct HammerHead/FX", 32, 4 },
+ { 0x53f8, interact_abs_pp8d, interact_btn_pp8d, "InterAct ProPad 8 Digital", 16, 0 },
+ { 0 }};
+
+/*
+ * interact_read_packet() reads and InterAct joystick data.
+ */
+
+static int interact_read_packet(struct gameport *gameport, int length, u32 *data)
+{
+ unsigned long flags;
+ unsigned char u, v;
+ unsigned int t, s;
+ int i;
+
+ i = 0;
+ data[0] = data[1] = data[2] = 0;
+ t = gameport_time(gameport, INTERACT_MAX_START);
+ s = gameport_time(gameport, INTERACT_MAX_STROBE);
+
+ local_irq_save(flags);
+ gameport_trigger(gameport);
+ v = gameport_read(gameport);
+
+ while (t > 0 && i < length) {
+ t--;
+ u = v; v = gameport_read(gameport);
+ if (v & ~u & 0x40) {
+ data[0] = (data[0] << 1) | ((v >> 4) & 1);
+ data[1] = (data[1] << 1) | ((v >> 5) & 1);
+ data[2] = (data[2] << 1) | ((v >> 7) & 1);
+ i++;
+ t = s;
+ }
+ }
+
+ local_irq_restore(flags);
+
+ return i;
+}
+
+/*
+ * interact_poll() reads and analyzes InterAct joystick data.
+ */
+
+static void interact_poll(struct gameport *gameport)
+{
+ struct interact *interact = gameport_get_drvdata(gameport);
+ struct input_dev *dev = interact->dev;
+ u32 data[3];
+ int i;
+
+ interact->reads++;
+
+ if (interact_read_packet(interact->gameport, interact->length, data) < interact->length) {
+ interact->bads++;
+ } else {
+
+ for (i = 0; i < 3; i++)
+ data[i] <<= INTERACT_MAX_LENGTH - interact->length;
+
+ switch (interact->type) {
+
+ case INTERACT_TYPE_HHFX:
+
+ for (i = 0; i < 4; i++)
+ input_report_abs(dev, interact_abs_hhfx[i], (data[i & 1] >> ((i >> 1) << 3)) & 0xff);
+
+ for (i = 0; i < 2; i++)
+ input_report_abs(dev, ABS_HAT0Y - i,
+ ((data[1] >> ((i << 1) + 17)) & 1) - ((data[1] >> ((i << 1) + 16)) & 1));
+
+ for (i = 0; i < 8; i++)
+ input_report_key(dev, interact_btn_hhfx[i], (data[0] >> (i + 16)) & 1);
+
+ for (i = 0; i < 4; i++)
+ input_report_key(dev, interact_btn_hhfx[i + 8], (data[1] >> (i + 20)) & 1);
+
+ break;
+
+ case INTERACT_TYPE_PP8D:
+
+ for (i = 0; i < 2; i++)
+ input_report_abs(dev, interact_abs_pp8d[i],
+ ((data[0] >> ((i << 1) + 20)) & 1) - ((data[0] >> ((i << 1) + 21)) & 1));
+
+ for (i = 0; i < 8; i++)
+ input_report_key(dev, interact_btn_pp8d[i], (data[1] >> (i + 16)) & 1);
+
+ break;
+ }
+ }
+
+ input_sync(dev);
+}
+
+/*
+ * interact_open() is a callback from the input open routine.
+ */
+
+static int interact_open(struct input_dev *dev)
+{
+ struct interact *interact = input_get_drvdata(dev);
+
+ gameport_start_polling(interact->gameport);
+ return 0;
+}
+
+/*
+ * interact_close() is a callback from the input close routine.
+ */
+
+static void interact_close(struct input_dev *dev)
+{
+ struct interact *interact = input_get_drvdata(dev);
+
+ gameport_stop_polling(interact->gameport);
+}
+
+/*
+ * interact_connect() probes for InterAct joysticks.
+ */
+
+static int interact_connect(struct gameport *gameport, struct gameport_driver *drv)
+{
+ struct interact *interact;
+ struct input_dev *input_dev;
+ __u32 data[3];
+ int i, t;
+ int err;
+
+ interact = kzalloc(sizeof(struct interact), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!interact || !input_dev) {
+ err = -ENOMEM;
+ goto fail1;
+ }
+
+ interact->gameport = gameport;
+ interact->dev = input_dev;
+
+ gameport_set_drvdata(gameport, interact);
+
+ err = gameport_open(gameport, drv, GAMEPORT_MODE_RAW);
+ if (err)
+ goto fail1;
+
+ i = interact_read_packet(gameport, INTERACT_MAX_LENGTH * 2, data);
+
+ if (i != 32 || (data[0] >> 24) != 0x0c || (data[1] >> 24) != 0x02) {
+ err = -ENODEV;
+ goto fail2;
+ }
+
+ for (i = 0; interact_type[i].length; i++)
+ if (interact_type[i].id == (data[2] >> 16))
+ break;
+
+ if (!interact_type[i].length) {
+ printk(KERN_WARNING "interact.c: Unknown joystick on %s. [len %d d0 %08x d1 %08x i2 %08x]\n",
+ gameport->phys, i, data[0], data[1], data[2]);
+ err = -ENODEV;
+ goto fail2;
+ }
+
+ gameport_set_poll_handler(gameport, interact_poll);
+ gameport_set_poll_interval(gameport, 20);
+
+ snprintf(interact->phys, sizeof(interact->phys), "%s/input0", gameport->phys);
+
+ interact->type = i;
+ interact->length = interact_type[i].length;
+
+ input_dev->name = interact_type[i].name;
+ input_dev->phys = interact->phys;
+ input_dev->id.bustype = BUS_GAMEPORT;
+ input_dev->id.vendor = GAMEPORT_ID_VENDOR_INTERACT;
+ input_dev->id.product = interact_type[i].id;
+ input_dev->id.version = 0x0100;
+ input_dev->dev.parent = &gameport->dev;
+
+ input_set_drvdata(input_dev, interact);
+
+ input_dev->open = interact_open;
+ input_dev->close = interact_close;
+
+ input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
+
+ for (i = 0; (t = interact_type[interact->type].abs[i]) >= 0; i++) {
+ if (i < interact_type[interact->type].b8)
+ input_set_abs_params(input_dev, t, 0, 255, 0, 0);
+ else
+ input_set_abs_params(input_dev, t, -1, 1, 0, 0);
+ }
+
+ for (i = 0; (t = interact_type[interact->type].btn[i]) >= 0; i++)
+ __set_bit(t, input_dev->keybit);
+
+ err = input_register_device(interact->dev);
+ if (err)
+ goto fail2;
+
+ return 0;
+
+fail2: gameport_close(gameport);
+fail1: gameport_set_drvdata(gameport, NULL);
+ input_free_device(input_dev);
+ kfree(interact);
+ return err;
+}
+
+static void interact_disconnect(struct gameport *gameport)
+{
+ struct interact *interact = gameport_get_drvdata(gameport);
+
+ input_unregister_device(interact->dev);
+ gameport_close(gameport);
+ gameport_set_drvdata(gameport, NULL);
+ kfree(interact);
+}
+
+static struct gameport_driver interact_drv = {
+ .driver = {
+ .name = "interact",
+ },
+ .description = DRIVER_DESC,
+ .connect = interact_connect,
+ .disconnect = interact_disconnect,
+};
+
+static int __init interact_init(void)
+{
+ return gameport_register_driver(&interact_drv);
+}
+
+static void __exit interact_exit(void)
+{
+ gameport_unregister_driver(&interact_drv);
+}
+
+module_init(interact_init);
+module_exit(interact_exit);
diff --git a/drivers/input/joystick/joydump.c b/drivers/input/joystick/joydump.c
new file mode 100644
index 0000000..cd894a0
--- /dev/null
+++ b/drivers/input/joystick/joydump.c
@@ -0,0 +1,173 @@
+/*
+ * Copyright (c) 1996-2001 Vojtech Pavlik
+ */
+
+/*
+ * This is just a very simple driver that can dump the data
+ * out of the joystick port into the syslog ...
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * Should you need to contact me, the author, you can do so either by
+ * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
+ * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
+ */
+
+#include <linux/module.h>
+#include <linux/gameport.h>
+#include <linux/kernel.h>
+#include <linux/delay.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+
+#define DRIVER_DESC "Gameport data dumper module"
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+#define BUF_SIZE 256
+
+struct joydump {
+ unsigned int time;
+ unsigned char data;
+};
+
+static int joydump_connect(struct gameport *gameport, struct gameport_driver *drv)
+{
+ struct joydump *buf; /* all entries */
+ struct joydump *dump, *prev; /* one entry each */
+ int axes[4], buttons;
+ int i, j, t, timeout;
+ unsigned long flags;
+ unsigned char u;
+
+ printk(KERN_INFO "joydump: ,------------------ START ----------------.\n");
+ printk(KERN_INFO "joydump: | Dumping: %30s |\n", gameport->phys);
+ printk(KERN_INFO "joydump: | Speed: %28d kHz |\n", gameport->speed);
+
+ if (gameport_open(gameport, drv, GAMEPORT_MODE_RAW)) {
+
+ printk(KERN_INFO "joydump: | Raw mode not available - trying cooked. |\n");
+
+ if (gameport_open(gameport, drv, GAMEPORT_MODE_COOKED)) {
+
+ printk(KERN_INFO "joydump: | Cooked not available either. Failing. |\n");
+ printk(KERN_INFO "joydump: `------------------- END -----------------'\n");
+ return -ENODEV;
+ }
+
+ gameport_cooked_read(gameport, axes, &buttons);
+
+ for (i = 0; i < 4; i++)
+ printk(KERN_INFO "joydump: | Axis %d: %4d. |\n", i, axes[i]);
+ printk(KERN_INFO "joydump: | Buttons %02x. |\n", buttons);
+ printk(KERN_INFO "joydump: `------------------- END -----------------'\n");
+ }
+
+ timeout = gameport_time(gameport, 10000); /* 10 ms */
+
+ buf = kmalloc(BUF_SIZE * sizeof(struct joydump), GFP_KERNEL);
+ if (!buf) {
+ printk(KERN_INFO "joydump: no memory for testing\n");
+ goto jd_end;
+ }
+ dump = buf;
+ t = 0;
+ i = 1;
+
+ local_irq_save(flags);
+
+ u = gameport_read(gameport);
+
+ dump->data = u;
+ dump->time = t;
+ dump++;
+
+ gameport_trigger(gameport);
+
+ while (i < BUF_SIZE && t < timeout) {
+
+ dump->data = gameport_read(gameport);
+
+ if (dump->data ^ u) {
+ u = dump->data;
+ dump->time = t;
+ i++;
+ dump++;
+ }
+ t++;
+ }
+
+ local_irq_restore(flags);
+
+/*
+ * Dump data.
+ */
+
+ t = i;
+ dump = buf;
+ prev = dump;
+
+ printk(KERN_INFO "joydump: >------------------ DATA -----------------<\n");
+ printk(KERN_INFO "joydump: | index: %3d delta: %3d us data: ", 0, 0);
+ for (j = 7; j >= 0; j--)
+ printk("%d", (dump->data >> j) & 1);
+ printk(" |\n");
+ dump++;
+
+ for (i = 1; i < t; i++, dump++, prev++) {
+ printk(KERN_INFO "joydump: | index: %3d delta: %3d us data: ",
+ i, dump->time - prev->time);
+ for (j = 7; j >= 0; j--)
+ printk("%d", (dump->data >> j) & 1);
+ printk(" |\n");
+ }
+ kfree(buf);
+
+jd_end:
+ printk(KERN_INFO "joydump: `------------------- END -----------------'\n");
+
+ return 0;
+}
+
+static void joydump_disconnect(struct gameport *gameport)
+{
+ gameport_close(gameport);
+}
+
+static struct gameport_driver joydump_drv = {
+ .driver = {
+ .name = "joydump",
+ },
+ .description = DRIVER_DESC,
+ .connect = joydump_connect,
+ .disconnect = joydump_disconnect,
+};
+
+static int __init joydump_init(void)
+{
+ return gameport_register_driver(&joydump_drv);
+}
+
+static void __exit joydump_exit(void)
+{
+ gameport_unregister_driver(&joydump_drv);
+}
+
+module_init(joydump_init);
+module_exit(joydump_exit);
diff --git a/drivers/input/joystick/magellan.c b/drivers/input/joystick/magellan.c
new file mode 100644
index 0000000..40e4078
--- /dev/null
+++ b/drivers/input/joystick/magellan.c
@@ -0,0 +1,240 @@
+/*
+ * Copyright (c) 1999-2001 Vojtech Pavlik
+ */
+
+/*
+ * Magellan and Space Mouse 6dof controller driver for Linux
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * Should you need to contact me, the author, you can do so either by
+ * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
+ * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/input.h>
+#include <linux/serio.h>
+#include <linux/init.h>
+
+#define DRIVER_DESC "Magellan and SpaceMouse 6dof controller driver"
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+/*
+ * Definitions & global arrays.
+ */
+
+#define MAGELLAN_MAX_LENGTH 32
+
+static int magellan_buttons[] = { BTN_0, BTN_1, BTN_2, BTN_3, BTN_4, BTN_5, BTN_6, BTN_7, BTN_8 };
+static int magellan_axes[] = { ABS_X, ABS_Y, ABS_Z, ABS_RX, ABS_RY, ABS_RZ };
+
+/*
+ * Per-Magellan data.
+ */
+
+struct magellan {
+ struct input_dev *dev;
+ int idx;
+ unsigned char data[MAGELLAN_MAX_LENGTH];
+ char phys[32];
+};
+
+/*
+ * magellan_crunch_nibbles() verifies that the bytes sent from the Magellan
+ * have correct upper nibbles for the lower ones, if not, the packet will
+ * be thrown away. It also strips these upper halves to simplify further
+ * processing.
+ */
+
+static int magellan_crunch_nibbles(unsigned char *data, int count)
+{
+ static unsigned char nibbles[16] = "0AB3D56GH9:K<MN?";
+
+ do {
+ if (data[count] == nibbles[data[count] & 0xf])
+ data[count] = data[count] & 0xf;
+ else
+ return -1;
+ } while (--count);
+
+ return 0;
+}
+
+static void magellan_process_packet(struct magellan* magellan)
+{
+ struct input_dev *dev = magellan->dev;
+ unsigned char *data = magellan->data;
+ int i, t;
+
+ if (!magellan->idx) return;
+
+ switch (magellan->data[0]) {
+
+ case 'd': /* Axis data */
+ if (magellan->idx != 25) return;
+ if (magellan_crunch_nibbles(data, 24)) return;
+ for (i = 0; i < 6; i++)
+ input_report_abs(dev, magellan_axes[i],
+ (data[(i << 2) + 1] << 12 | data[(i << 2) + 2] << 8 |
+ data[(i << 2) + 3] << 4 | data[(i << 2) + 4]) - 32768);
+ break;
+
+ case 'k': /* Button data */
+ if (magellan->idx != 4) return;
+ if (magellan_crunch_nibbles(data, 3)) return;
+ t = (data[1] << 1) | (data[2] << 5) | data[3];
+ for (i = 0; i < 9; i++) input_report_key(dev, magellan_buttons[i], (t >> i) & 1);
+ break;
+ }
+
+ input_sync(dev);
+}
+
+static irqreturn_t magellan_interrupt(struct serio *serio,
+ unsigned char data, unsigned int flags)
+{
+ struct magellan* magellan = serio_get_drvdata(serio);
+
+ if (data == '\r') {
+ magellan_process_packet(magellan);
+ magellan->idx = 0;
+ } else {
+ if (magellan->idx < MAGELLAN_MAX_LENGTH)
+ magellan->data[magellan->idx++] = data;
+ }
+ return IRQ_HANDLED;
+}
+
+/*
+ * magellan_disconnect() is the opposite of magellan_connect()
+ */
+
+static void magellan_disconnect(struct serio *serio)
+{
+ struct magellan* magellan = serio_get_drvdata(serio);
+
+ serio_close(serio);
+ serio_set_drvdata(serio, NULL);
+ input_unregister_device(magellan->dev);
+ kfree(magellan);
+}
+
+/*
+ * magellan_connect() is the routine that is called when someone adds a
+ * new serio device that supports Magellan protocol and registers it as
+ * an input device.
+ */
+
+static int magellan_connect(struct serio *serio, struct serio_driver *drv)
+{
+ struct magellan *magellan;
+ struct input_dev *input_dev;
+ int err = -ENOMEM;
+ int i;
+
+ magellan = kzalloc(sizeof(struct magellan), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!magellan || !input_dev)
+ goto fail1;
+
+ magellan->dev = input_dev;
+ snprintf(magellan->phys, sizeof(magellan->phys), "%s/input0", serio->phys);
+
+ input_dev->name = "LogiCad3D Magellan / SpaceMouse";
+ input_dev->phys = magellan->phys;
+ input_dev->id.bustype = BUS_RS232;
+ input_dev->id.vendor = SERIO_MAGELLAN;
+ input_dev->id.product = 0x0001;
+ input_dev->id.version = 0x0100;
+ input_dev->dev.parent = &serio->dev;
+
+ input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
+
+ for (i = 0; i < 9; i++)
+ set_bit(magellan_buttons[i], input_dev->keybit);
+
+ for (i = 0; i < 6; i++)
+ input_set_abs_params(input_dev, magellan_axes[i], -360, 360, 0, 0);
+
+ serio_set_drvdata(serio, magellan);
+
+ err = serio_open(serio, drv);
+ if (err)
+ goto fail2;
+
+ err = input_register_device(magellan->dev);
+ if (err)
+ goto fail3;
+
+ return 0;
+
+ fail3: serio_close(serio);
+ fail2: serio_set_drvdata(serio, NULL);
+ fail1: input_free_device(input_dev);
+ kfree(magellan);
+ return err;
+}
+
+/*
+ * The serio driver structure.
+ */
+
+static struct serio_device_id magellan_serio_ids[] = {
+ {
+ .type = SERIO_RS232,
+ .proto = SERIO_MAGELLAN,
+ .id = SERIO_ANY,
+ .extra = SERIO_ANY,
+ },
+ { 0 }
+};
+
+MODULE_DEVICE_TABLE(serio, magellan_serio_ids);
+
+static struct serio_driver magellan_drv = {
+ .driver = {
+ .name = "magellan",
+ },
+ .description = DRIVER_DESC,
+ .id_table = magellan_serio_ids,
+ .interrupt = magellan_interrupt,
+ .connect = magellan_connect,
+ .disconnect = magellan_disconnect,
+};
+
+/*
+ * The functions for inserting/removing us as a module.
+ */
+
+static int __init magellan_init(void)
+{
+ return serio_register_driver(&magellan_drv);
+}
+
+static void __exit magellan_exit(void)
+{
+ serio_unregister_driver(&magellan_drv);
+}
+
+module_init(magellan_init);
+module_exit(magellan_exit);
diff --git a/drivers/input/joystick/maplecontrol.c b/drivers/input/joystick/maplecontrol.c
new file mode 100644
index 0000000..77cfde5
--- /dev/null
+++ b/drivers/input/joystick/maplecontrol.c
@@ -0,0 +1,193 @@
+/*
+ * SEGA Dreamcast controller driver
+ * Based on drivers/usb/iforce.c
+ *
+ * Copyright Yaegashi Takeshi, 2001
+ * Adrian McMenamin, 2008 - 2009
+ */
+
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/input.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/timer.h>
+#include <linux/maple.h>
+
+MODULE_AUTHOR("Adrian McMenamin <adrian@mcmen.demon.co.uk>");
+MODULE_DESCRIPTION("SEGA Dreamcast controller driver");
+MODULE_LICENSE("GPL");
+
+struct dc_pad {
+ struct input_dev *dev;
+ struct maple_device *mdev;
+};
+
+static void dc_pad_callback(struct mapleq *mq)
+{
+ unsigned short buttons;
+ struct maple_device *mapledev = mq->dev;
+ struct dc_pad *pad = maple_get_drvdata(mapledev);
+ struct input_dev *dev = pad->dev;
+ unsigned char *res = mq->recvbuf->buf;
+
+ buttons = ~le16_to_cpup((__le16 *)(res + 8));
+
+ input_report_abs(dev, ABS_HAT0Y,
+ (buttons & 0x0010 ? -1 : 0) + (buttons & 0x0020 ? 1 : 0));
+ input_report_abs(dev, ABS_HAT0X,
+ (buttons & 0x0040 ? -1 : 0) + (buttons & 0x0080 ? 1 : 0));
+ input_report_abs(dev, ABS_HAT1Y,
+ (buttons & 0x1000 ? -1 : 0) + (buttons & 0x2000 ? 1 : 0));
+ input_report_abs(dev, ABS_HAT1X,
+ (buttons & 0x4000 ? -1 : 0) + (buttons & 0x8000 ? 1 : 0));
+
+ input_report_key(dev, BTN_C, buttons & 0x0001);
+ input_report_key(dev, BTN_B, buttons & 0x0002);
+ input_report_key(dev, BTN_A, buttons & 0x0004);
+ input_report_key(dev, BTN_START, buttons & 0x0008);
+ input_report_key(dev, BTN_Z, buttons & 0x0100);
+ input_report_key(dev, BTN_Y, buttons & 0x0200);
+ input_report_key(dev, BTN_X, buttons & 0x0400);
+ input_report_key(dev, BTN_SELECT, buttons & 0x0800);
+
+ input_report_abs(dev, ABS_GAS, res[10]);
+ input_report_abs(dev, ABS_BRAKE, res[11]);
+ input_report_abs(dev, ABS_X, res[12]);
+ input_report_abs(dev, ABS_Y, res[13]);
+ input_report_abs(dev, ABS_RX, res[14]);
+ input_report_abs(dev, ABS_RY, res[15]);
+}
+
+static int dc_pad_open(struct input_dev *dev)
+{
+ struct dc_pad *pad = dev->dev.platform_data;
+
+ maple_getcond_callback(pad->mdev, dc_pad_callback, HZ/20,
+ MAPLE_FUNC_CONTROLLER);
+
+ return 0;
+}
+
+static void dc_pad_close(struct input_dev *dev)
+{
+ struct dc_pad *pad = dev->dev.platform_data;
+
+ maple_getcond_callback(pad->mdev, dc_pad_callback, 0,
+ MAPLE_FUNC_CONTROLLER);
+}
+
+/* allow the controller to be used */
+static int __devinit probe_maple_controller(struct device *dev)
+{
+ static const short btn_bit[32] = {
+ BTN_C, BTN_B, BTN_A, BTN_START, -1, -1, -1, -1,
+ BTN_Z, BTN_Y, BTN_X, BTN_SELECT, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1,
+ };
+
+ static const short abs_bit[32] = {
+ -1, -1, -1, -1, ABS_HAT0Y, ABS_HAT0Y, ABS_HAT0X, ABS_HAT0X,
+ -1, -1, -1, -1, ABS_HAT1Y, ABS_HAT1Y, ABS_HAT1X, ABS_HAT1X,
+ ABS_GAS, ABS_BRAKE, ABS_X, ABS_Y, ABS_RX, ABS_RY, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1,
+ };
+
+ struct maple_device *mdev = to_maple_dev(dev);
+ struct maple_driver *mdrv = to_maple_driver(dev->driver);
+ int i, error;
+ struct dc_pad *pad;
+ struct input_dev *idev;
+ unsigned long data = be32_to_cpu(mdev->devinfo.function_data[0]);
+
+ pad = kzalloc(sizeof(struct dc_pad), GFP_KERNEL);
+ idev = input_allocate_device();
+ if (!pad || !idev) {
+ error = -ENOMEM;
+ goto fail;
+ }
+
+ pad->dev = idev;
+ pad->mdev = mdev;
+
+ idev->open = dc_pad_open;
+ idev->close = dc_pad_close;
+
+ for (i = 0; i < 32; i++) {
+ if (data & (1 << i)) {
+ if (btn_bit[i] >= 0)
+ __set_bit(btn_bit[i], idev->keybit);
+ else if (abs_bit[i] >= 0)
+ __set_bit(abs_bit[i], idev->absbit);
+ }
+ }
+
+ if (idev->keybit[BIT_WORD(BTN_JOYSTICK)])
+ idev->evbit[0] |= BIT_MASK(EV_KEY);
+
+ if (idev->absbit[0])
+ idev->evbit[0] |= BIT_MASK(EV_ABS);
+
+ for (i = ABS_X; i <= ABS_BRAKE; i++)
+ input_set_abs_params(idev, i, 0, 255, 0, 0);
+
+ for (i = ABS_HAT0X; i <= ABS_HAT3Y; i++)
+ input_set_abs_params(idev, i, 1, -1, 0, 0);
+
+ idev->dev.platform_data = pad;
+ idev->dev.parent = &mdev->dev;
+ idev->name = mdev->product_name;
+ idev->id.bustype = BUS_HOST;
+ input_set_drvdata(idev, pad);
+
+ error = input_register_device(idev);
+ if (error)
+ goto fail;
+
+ mdev->driver = mdrv;
+ maple_set_drvdata(mdev, pad);
+
+ return 0;
+
+fail:
+ input_free_device(idev);
+ kfree(pad);
+ maple_set_drvdata(mdev, NULL);
+ return error;
+}
+
+static int __devexit remove_maple_controller(struct device *dev)
+{
+ struct maple_device *mdev = to_maple_dev(dev);
+ struct dc_pad *pad = maple_get_drvdata(mdev);
+
+ mdev->callback = NULL;
+ input_unregister_device(pad->dev);
+ maple_set_drvdata(mdev, NULL);
+ kfree(pad);
+
+ return 0;
+}
+
+static struct maple_driver dc_pad_driver = {
+ .function = MAPLE_FUNC_CONTROLLER,
+ .drv = {
+ .name = "Dreamcast_controller",
+ .probe = probe_maple_controller,
+ .remove = __devexit_p(remove_maple_controller),
+ },
+};
+
+static int __init dc_pad_init(void)
+{
+ return maple_driver_register(&dc_pad_driver);
+}
+
+static void __exit dc_pad_exit(void)
+{
+ maple_driver_unregister(&dc_pad_driver);
+}
+
+module_init(dc_pad_init);
+module_exit(dc_pad_exit);
diff --git a/drivers/input/joystick/sidewinder.c b/drivers/input/joystick/sidewinder.c
new file mode 100644
index 0000000..b8d8611
--- /dev/null
+++ b/drivers/input/joystick/sidewinder.c
@@ -0,0 +1,834 @@
+/*
+ * Copyright (c) 1998-2005 Vojtech Pavlik
+ */
+
+/*
+ * Microsoft SideWinder joystick family driver for Linux
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * Should you need to contact me, the author, you can do so either by
+ * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
+ * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
+ */
+
+#include <linux/delay.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/init.h>
+#include <linux/input.h>
+#include <linux/gameport.h>
+#include <linux/jiffies.h>
+
+#define DRIVER_DESC "Microsoft SideWinder joystick family driver"
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+/*
+ * These are really magic values. Changing them can make a problem go away,
+ * as well as break everything.
+ */
+
+#undef SW_DEBUG
+#undef SW_DEBUG_DATA
+
+#define SW_START 600 /* The time we wait for the first bit [600 us] */
+#define SW_STROBE 60 /* Max time per bit [60 us] */
+#define SW_TIMEOUT 6 /* Wait for everything to settle [6 ms] */
+#define SW_KICK 45 /* Wait after A0 fall till kick [45 us] */
+#define SW_END 8 /* Number of bits before end of packet to kick */
+#define SW_FAIL 16 /* Number of packet read errors to fail and reinitialize */
+#define SW_BAD 2 /* Number of packet read errors to switch off 3d Pro optimization */
+#define SW_OK 64 /* Number of packet read successes to switch optimization back on */
+#define SW_LENGTH 512 /* Max number of bits in a packet */
+
+#ifdef SW_DEBUG
+#define dbg(format, arg...) printk(KERN_DEBUG __FILE__ ": " format "\n" , ## arg)
+#else
+#define dbg(format, arg...) do {} while (0)
+#endif
+
+/*
+ * SideWinder joystick types ...
+ */
+
+#define SW_ID_3DP 0
+#define SW_ID_GP 1
+#define SW_ID_PP 2
+#define SW_ID_FFP 3
+#define SW_ID_FSP 4
+#define SW_ID_FFW 5
+
+/*
+ * Names, buttons, axes ...
+ */
+
+static char *sw_name[] = { "3D Pro", "GamePad", "Precision Pro", "Force Feedback Pro", "FreeStyle Pro",
+ "Force Feedback Wheel" };
+
+static char sw_abs[][7] = {
+ { ABS_X, ABS_Y, ABS_RZ, ABS_THROTTLE, ABS_HAT0X, ABS_HAT0Y },
+ { ABS_X, ABS_Y },
+ { ABS_X, ABS_Y, ABS_RZ, ABS_THROTTLE, ABS_HAT0X, ABS_HAT0Y },
+ { ABS_X, ABS_Y, ABS_RZ, ABS_THROTTLE, ABS_HAT0X, ABS_HAT0Y },
+ { ABS_X, ABS_Y, ABS_THROTTLE, ABS_HAT0X, ABS_HAT0Y },
+ { ABS_RX, ABS_RUDDER, ABS_THROTTLE }};
+
+static char sw_bit[][7] = {
+ { 10, 10, 9, 10, 1, 1 },
+ { 1, 1 },
+ { 10, 10, 6, 7, 1, 1 },
+ { 10, 10, 6, 7, 1, 1 },
+ { 10, 10, 6, 1, 1 },
+ { 10, 7, 7, 1, 1 }};
+
+static short sw_btn[][12] = {
+ { BTN_TRIGGER, BTN_TOP, BTN_THUMB, BTN_THUMB2, BTN_BASE, BTN_BASE2, BTN_BASE3, BTN_BASE4, BTN_MODE },
+ { BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z, BTN_TL, BTN_TR, BTN_START, BTN_MODE },
+ { BTN_TRIGGER, BTN_THUMB, BTN_TOP, BTN_TOP2, BTN_BASE, BTN_BASE2, BTN_BASE3, BTN_BASE4, BTN_SELECT },
+ { BTN_TRIGGER, BTN_THUMB, BTN_TOP, BTN_TOP2, BTN_BASE, BTN_BASE2, BTN_BASE3, BTN_BASE4, BTN_SELECT },
+ { BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z, BTN_TL, BTN_TR, BTN_START, BTN_MODE, BTN_SELECT },
+ { BTN_TRIGGER, BTN_TOP, BTN_THUMB, BTN_THUMB2, BTN_BASE, BTN_BASE2, BTN_BASE3, BTN_BASE4 }};
+
+static struct {
+ int x;
+ int y;
+} sw_hat_to_axis[] = {{ 0, 0}, { 0,-1}, { 1,-1}, { 1, 0}, { 1, 1}, { 0, 1}, {-1, 1}, {-1, 0}, {-1,-1}};
+
+struct sw {
+ struct gameport *gameport;
+ struct input_dev *dev[4];
+ char name[64];
+ char phys[4][32];
+ int length;
+ int type;
+ int bits;
+ int number;
+ int fail;
+ int ok;
+ int reads;
+ int bads;
+};
+
+/*
+ * sw_read_packet() is a function which reads either a data packet, or an
+ * identification packet from a SideWinder joystick. The protocol is very,
+ * very, very braindamaged. Microsoft patented it in US patent #5628686.
+ */
+
+static int sw_read_packet(struct gameport *gameport, unsigned char *buf, int length, int id)
+{
+ unsigned long flags;
+ int timeout, bitout, sched, i, kick, start, strobe;
+ unsigned char pending, u, v;
+
+ i = -id; /* Don't care about data, only want ID */
+ timeout = id ? gameport_time(gameport, SW_TIMEOUT * 1000) : 0; /* Set up global timeout for ID packet */
+ kick = id ? gameport_time(gameport, SW_KICK) : 0; /* Set up kick timeout for ID packet */
+ start = gameport_time(gameport, SW_START);
+ strobe = gameport_time(gameport, SW_STROBE);
+ bitout = start;
+ pending = 0;
+ sched = 0;
+
+ local_irq_save(flags); /* Quiet, please */
+
+ gameport_trigger(gameport); /* Trigger */
+ v = gameport_read(gameport);
+
+ do {
+ bitout--;
+ u = v;
+ v = gameport_read(gameport);
+ } while (!(~v & u & 0x10) && (bitout > 0)); /* Wait for first falling edge on clock */
+
+ if (bitout > 0)
+ bitout = strobe; /* Extend time if not timed out */
+
+ while ((timeout > 0 || bitout > 0) && (i < length)) {
+
+ timeout--;
+ bitout--; /* Decrement timers */
+ sched--;
+
+ u = v;
+ v = gameport_read(gameport);
+
+ if ((~u & v & 0x10) && (bitout > 0)) { /* Rising edge on clock - data bit */
+ if (i >= 0) /* Want this data */
+ buf[i] = v >> 5; /* Store it */
+ i++; /* Advance index */
+ bitout = strobe; /* Extend timeout for next bit */
+ }
+
+ if (kick && (~v & u & 0x01)) { /* Falling edge on axis 0 */
+ sched = kick; /* Schedule second trigger */
+ kick = 0; /* Don't schedule next time on falling edge */
+ pending = 1; /* Mark schedule */
+ }
+
+ if (pending && sched < 0 && (i > -SW_END)) { /* Second trigger time */
+ gameport_trigger(gameport); /* Trigger */
+ bitout = start; /* Long bit timeout */
+ pending = 0; /* Unmark schedule */
+ timeout = 0; /* Switch from global to bit timeouts */
+ }
+ }
+
+ local_irq_restore(flags); /* Done - relax */
+
+#ifdef SW_DEBUG_DATA
+ {
+ int j;
+ printk(KERN_DEBUG "sidewinder.c: Read %d triplets. [", i);
+ for (j = 0; j < i; j++) printk("%d", buf[j]);
+ printk("]\n");
+ }
+#endif
+
+ return i;
+}
+
+/*
+ * sw_get_bits() and GB() compose bits from the triplet buffer into a __u64.
+ * Parameter 'pos' is bit number inside packet where to start at, 'num' is number
+ * of bits to be read, 'shift' is offset in the resulting __u64 to start at, bits
+ * is number of bits per triplet.
+ */
+
+#define GB(pos,num) sw_get_bits(buf, pos, num, sw->bits)
+
+static __u64 sw_get_bits(unsigned char *buf, int pos, int num, char bits)
+{
+ __u64 data = 0;
+ int tri = pos % bits; /* Start position */
+ int i = pos / bits;
+ int bit = 0;
+
+ while (num--) {
+ data |= (__u64)((buf[i] >> tri++) & 1) << bit++; /* Transfer bit */
+ if (tri == bits) {
+ i++; /* Next triplet */
+ tri = 0;
+ }
+ }
+
+ return data;
+}
+
+/*
+ * sw_init_digital() initializes a SideWinder 3D Pro joystick
+ * into digital mode.
+ */
+
+static void sw_init_digital(struct gameport *gameport)
+{
+ int seq[] = { 140, 140+725, 140+300, 0 };
+ unsigned long flags;
+ int i, t;
+
+ local_irq_save(flags);
+
+ i = 0;
+ do {
+ gameport_trigger(gameport); /* Trigger */
+ t = gameport_time(gameport, SW_TIMEOUT * 1000);
+ while ((gameport_read(gameport) & 1) && t) t--; /* Wait for axis to fall back to 0 */
+ udelay(seq[i]); /* Delay magic time */
+ } while (seq[++i]);
+
+ gameport_trigger(gameport); /* Last trigger */
+
+ local_irq_restore(flags);
+}
+
+/*
+ * sw_parity() computes parity of __u64
+ */
+
+static int sw_parity(__u64 t)
+{
+ int x = t ^ (t >> 32);
+
+ x ^= x >> 16;
+ x ^= x >> 8;
+ x ^= x >> 4;
+ x ^= x >> 2;
+ x ^= x >> 1;
+ return x & 1;
+}
+
+/*
+ * sw_ccheck() checks synchronization bits and computes checksum of nibbles.
+ */
+
+static int sw_check(__u64 t)
+{
+ unsigned char sum = 0;
+
+ if ((t & 0x8080808080808080ULL) ^ 0x80) /* Sync */
+ return -1;
+
+ while (t) { /* Sum */
+ sum += t & 0xf;
+ t >>= 4;
+ }
+
+ return sum & 0xf;
+}
+
+/*
+ * sw_parse() analyzes SideWinder joystick data, and writes the results into
+ * the axes and buttons arrays.
+ */
+
+static int sw_parse(unsigned char *buf, struct sw *sw)
+{
+ int hat, i, j;
+ struct input_dev *dev;
+
+ switch (sw->type) {
+
+ case SW_ID_3DP:
+
+ if (sw_check(GB(0,64)) || (hat = (GB(6,1) << 3) | GB(60,3)) > 8)
+ return -1;
+
+ dev = sw->dev[0];
+
+ input_report_abs(dev, ABS_X, (GB( 3,3) << 7) | GB(16,7));
+ input_report_abs(dev, ABS_Y, (GB( 0,3) << 7) | GB(24,7));
+ input_report_abs(dev, ABS_RZ, (GB(35,2) << 7) | GB(40,7));
+ input_report_abs(dev, ABS_THROTTLE, (GB(32,3) << 7) | GB(48,7));
+
+ input_report_abs(dev, ABS_HAT0X, sw_hat_to_axis[hat].x);
+ input_report_abs(dev, ABS_HAT0Y, sw_hat_to_axis[hat].y);
+
+ for (j = 0; j < 7; j++)
+ input_report_key(dev, sw_btn[SW_ID_3DP][j], !GB(j+8,1));
+
+ input_report_key(dev, BTN_BASE4, !GB(38,1));
+ input_report_key(dev, BTN_BASE5, !GB(37,1));
+
+ input_sync(dev);
+
+ return 0;
+
+ case SW_ID_GP:
+
+ for (i = 0; i < sw->number; i ++) {
+
+ if (sw_parity(GB(i*15,15)))
+ return -1;
+
+ input_report_abs(sw->dev[i], ABS_X, GB(i*15+3,1) - GB(i*15+2,1));
+ input_report_abs(sw->dev[i], ABS_Y, GB(i*15+0,1) - GB(i*15+1,1));
+
+ for (j = 0; j < 10; j++)
+ input_report_key(sw->dev[i], sw_btn[SW_ID_GP][j], !GB(i*15+j+4,1));
+
+ input_sync(sw->dev[i]);
+ }
+
+ return 0;
+
+ case SW_ID_PP:
+ case SW_ID_FFP:
+
+ if (!sw_parity(GB(0,48)) || (hat = GB(42,4)) > 8)
+ return -1;
+
+ dev = sw->dev[0];
+ input_report_abs(dev, ABS_X, GB( 9,10));
+ input_report_abs(dev, ABS_Y, GB(19,10));
+ input_report_abs(dev, ABS_RZ, GB(36, 6));
+ input_report_abs(dev, ABS_THROTTLE, GB(29, 7));
+
+ input_report_abs(dev, ABS_HAT0X, sw_hat_to_axis[hat].x);
+ input_report_abs(dev, ABS_HAT0Y, sw_hat_to_axis[hat].y);
+
+ for (j = 0; j < 9; j++)
+ input_report_key(dev, sw_btn[SW_ID_PP][j], !GB(j,1));
+
+ input_sync(dev);
+
+ return 0;
+
+ case SW_ID_FSP:
+
+ if (!sw_parity(GB(0,43)) || (hat = GB(28,4)) > 8)
+ return -1;
+
+ dev = sw->dev[0];
+ input_report_abs(dev, ABS_X, GB( 0,10));
+ input_report_abs(dev, ABS_Y, GB(16,10));
+ input_report_abs(dev, ABS_THROTTLE, GB(32, 6));
+
+ input_report_abs(dev, ABS_HAT0X, sw_hat_to_axis[hat].x);
+ input_report_abs(dev, ABS_HAT0Y, sw_hat_to_axis[hat].y);
+
+ for (j = 0; j < 6; j++)
+ input_report_key(dev, sw_btn[SW_ID_FSP][j], !GB(j+10,1));
+
+ input_report_key(dev, BTN_TR, !GB(26,1));
+ input_report_key(dev, BTN_START, !GB(27,1));
+ input_report_key(dev, BTN_MODE, !GB(38,1));
+ input_report_key(dev, BTN_SELECT, !GB(39,1));
+
+ input_sync(dev);
+
+ return 0;
+
+ case SW_ID_FFW:
+
+ if (!sw_parity(GB(0,33)))
+ return -1;
+
+ dev = sw->dev[0];
+ input_report_abs(dev, ABS_RX, GB( 0,10));
+ input_report_abs(dev, ABS_RUDDER, GB(10, 6));
+ input_report_abs(dev, ABS_THROTTLE, GB(16, 6));
+
+ for (j = 0; j < 8; j++)
+ input_report_key(dev, sw_btn[SW_ID_FFW][j], !GB(j+22,1));
+
+ input_sync(dev);
+
+ return 0;
+ }
+
+ return -1;
+}
+
+/*
+ * sw_read() reads SideWinder joystick data, and reinitializes
+ * the joystick in case of persistent problems. This is the function that is
+ * called from the generic code to poll the joystick.
+ */
+
+static int sw_read(struct sw *sw)
+{
+ unsigned char buf[SW_LENGTH];
+ int i;
+
+ i = sw_read_packet(sw->gameport, buf, sw->length, 0);
+
+ if (sw->type == SW_ID_3DP && sw->length == 66 && i != 66) { /* Broken packet, try to fix */
+
+ if (i == 64 && !sw_check(sw_get_bits(buf,0,64,1))) { /* Last init failed, 1 bit mode */
+ printk(KERN_WARNING "sidewinder.c: Joystick in wrong mode on %s"
+ " - going to reinitialize.\n", sw->gameport->phys);
+ sw->fail = SW_FAIL; /* Reinitialize */
+ i = 128; /* Bogus value */
+ }
+
+ if (i < 66 && GB(0,64) == GB(i*3-66,64)) /* 1 == 3 */
+ i = 66; /* Everything is fine */
+
+ if (i < 66 && GB(0,64) == GB(66,64)) /* 1 == 2 */
+ i = 66; /* Everything is fine */
+
+ if (i < 66 && GB(i*3-132,64) == GB(i*3-66,64)) { /* 2 == 3 */
+ memmove(buf, buf + i - 22, 22); /* Move data */
+ i = 66; /* Carry on */
+ }
+ }
+
+ if (i == sw->length && !sw_parse(buf, sw)) { /* Parse data */
+
+ sw->fail = 0;
+ sw->ok++;
+
+ if (sw->type == SW_ID_3DP && sw->length == 66 /* Many packets OK */
+ && sw->ok > SW_OK) {
+
+ printk(KERN_INFO "sidewinder.c: No more trouble on %s"
+ " - enabling optimization again.\n", sw->gameport->phys);
+ sw->length = 22;
+ }
+
+ return 0;
+ }
+
+ sw->ok = 0;
+ sw->fail++;
+
+ if (sw->type == SW_ID_3DP && sw->length == 22 && sw->fail > SW_BAD) { /* Consecutive bad packets */
+
+ printk(KERN_INFO "sidewinder.c: Many bit errors on %s"
+ " - disabling optimization.\n", sw->gameport->phys);
+ sw->length = 66;
+ }
+
+ if (sw->fail < SW_FAIL)
+ return -1; /* Not enough, don't reinitialize yet */
+
+ printk(KERN_WARNING "sidewinder.c: Too many bit errors on %s"
+ " - reinitializing joystick.\n", sw->gameport->phys);
+
+ if (!i && sw->type == SW_ID_3DP) { /* 3D Pro can be in analog mode */
+ mdelay(3 * SW_TIMEOUT);
+ sw_init_digital(sw->gameport);
+ }
+
+ mdelay(SW_TIMEOUT);
+ i = sw_read_packet(sw->gameport, buf, SW_LENGTH, 0); /* Read normal data packet */
+ mdelay(SW_TIMEOUT);
+ sw_read_packet(sw->gameport, buf, SW_LENGTH, i); /* Read ID packet, this initializes the stick */
+
+ sw->fail = SW_FAIL;
+
+ return -1;
+}
+
+static void sw_poll(struct gameport *gameport)
+{
+ struct sw *sw = gameport_get_drvdata(gameport);
+
+ sw->reads++;
+ if (sw_read(sw))
+ sw->bads++;
+}
+
+static int sw_open(struct input_dev *dev)
+{
+ struct sw *sw = input_get_drvdata(dev);
+
+ gameport_start_polling(sw->gameport);
+ return 0;
+}
+
+static void sw_close(struct input_dev *dev)
+{
+ struct sw *sw = input_get_drvdata(dev);
+
+ gameport_stop_polling(sw->gameport);
+}
+
+/*
+ * sw_print_packet() prints the contents of a SideWinder packet.
+ */
+
+static void sw_print_packet(char *name, int length, unsigned char *buf, char bits)
+{
+ int i;
+
+ printk(KERN_INFO "sidewinder.c: %s packet, %d bits. [", name, length);
+ for (i = (((length + 3) >> 2) - 1); i >= 0; i--)
+ printk("%x", (int)sw_get_bits(buf, i << 2, 4, bits));
+ printk("]\n");
+}
+
+/*
+ * sw_3dp_id() translates the 3DP id into a human legible string.
+ * Unfortunately I don't know how to do this for the other SW types.
+ */
+
+static void sw_3dp_id(unsigned char *buf, char *comment, size_t size)
+{
+ int i;
+ char pnp[8], rev[9];
+
+ for (i = 0; i < 7; i++) /* ASCII PnP ID */
+ pnp[i] = sw_get_bits(buf, 24+8*i, 8, 1);
+
+ for (i = 0; i < 8; i++) /* ASCII firmware revision */
+ rev[i] = sw_get_bits(buf, 88+8*i, 8, 1);
+
+ pnp[7] = rev[8] = 0;
+
+ snprintf(comment, size, " [PnP %d.%02d id %s rev %s]",
+ (int) ((sw_get_bits(buf, 8, 6, 1) << 6) | /* Two 6-bit values */
+ sw_get_bits(buf, 16, 6, 1)) / 100,
+ (int) ((sw_get_bits(buf, 8, 6, 1) << 6) |
+ sw_get_bits(buf, 16, 6, 1)) % 100,
+ pnp, rev);
+}
+
+/*
+ * sw_guess_mode() checks the upper two button bits for toggling -
+ * indication of that the joystick is in 3-bit mode. This is documented
+ * behavior for 3DP ID packet, and for example the FSP does this in
+ * normal packets instead. Fun ...
+ */
+
+static int sw_guess_mode(unsigned char *buf, int len)
+{
+ int i;
+ unsigned char xor = 0;
+
+ for (i = 1; i < len; i++)
+ xor |= (buf[i - 1] ^ buf[i]) & 6;
+
+ return !!xor * 2 + 1;
+}
+
+/*
+ * sw_connect() probes for SideWinder type joysticks.
+ */
+
+static int sw_connect(struct gameport *gameport, struct gameport_driver *drv)
+{
+ struct sw *sw;
+ struct input_dev *input_dev;
+ int i, j, k, l;
+ int err = 0;
+ unsigned char *buf = NULL; /* [SW_LENGTH] */
+ unsigned char *idbuf = NULL; /* [SW_LENGTH] */
+ unsigned char m = 1;
+ char comment[40];
+
+ comment[0] = 0;
+
+ sw = kzalloc(sizeof(struct sw), GFP_KERNEL);
+ buf = kmalloc(SW_LENGTH, GFP_KERNEL);
+ idbuf = kmalloc(SW_LENGTH, GFP_KERNEL);
+ if (!sw || !buf || !idbuf) {
+ err = -ENOMEM;
+ goto fail1;
+ }
+
+ sw->gameport = gameport;
+
+ gameport_set_drvdata(gameport, sw);
+
+ err = gameport_open(gameport, drv, GAMEPORT_MODE_RAW);
+ if (err)
+ goto fail1;
+
+ dbg("Init 0: Opened %s, io %#x, speed %d",
+ gameport->phys, gameport->io, gameport->speed);
+
+ i = sw_read_packet(gameport, buf, SW_LENGTH, 0); /* Read normal packet */
+ msleep(SW_TIMEOUT);
+ dbg("Init 1: Mode %d. Length %d.", m , i);
+
+ if (!i) { /* No data. 3d Pro analog mode? */
+ sw_init_digital(gameport); /* Switch to digital */
+ msleep(SW_TIMEOUT);
+ i = sw_read_packet(gameport, buf, SW_LENGTH, 0); /* Retry reading packet */
+ msleep(SW_TIMEOUT);
+ dbg("Init 1b: Length %d.", i);
+ if (!i) { /* No data -> FAIL */
+ err = -ENODEV;
+ goto fail2;
+ }
+ }
+
+ j = sw_read_packet(gameport, idbuf, SW_LENGTH, i); /* Read ID. This initializes the stick */
+ m |= sw_guess_mode(idbuf, j); /* ID packet should carry mode info [3DP] */
+ dbg("Init 2: Mode %d. ID Length %d.", m, j);
+
+ if (j <= 0) { /* Read ID failed. Happens in 1-bit mode on PP */
+ msleep(SW_TIMEOUT);
+ i = sw_read_packet(gameport, buf, SW_LENGTH, 0); /* Retry reading packet */
+ m |= sw_guess_mode(buf, i);
+ dbg("Init 2b: Mode %d. Length %d.", m, i);
+ if (!i) {
+ err = -ENODEV;
+ goto fail2;
+ }
+ msleep(SW_TIMEOUT);
+ j = sw_read_packet(gameport, idbuf, SW_LENGTH, i); /* Retry reading ID */
+ dbg("Init 2c: ID Length %d.", j);
+ }
+
+ sw->type = -1;
+ k = SW_FAIL; /* Try SW_FAIL times */
+ l = 0;
+
+ do {
+ k--;
+ msleep(SW_TIMEOUT);
+ i = sw_read_packet(gameport, buf, SW_LENGTH, 0); /* Read data packet */
+ dbg("Init 3: Mode %d. Length %d. Last %d. Tries %d.", m, i, l, k);
+
+ if (i > l) { /* Longer? As we can only lose bits, it makes */
+ /* no sense to try detection for a packet shorter */
+ l = i; /* than the previous one */
+
+ sw->number = 1;
+ sw->gameport = gameport;
+ sw->length = i;
+ sw->bits = m;
+
+ dbg("Init 3a: Case %d.\n", i * m);
+
+ switch (i * m) {
+ case 60:
+ sw->number++;
+ case 45: /* Ambiguous packet length */
+ if (j <= 40) { /* ID length less or eq 40 -> FSP */
+ case 43:
+ sw->type = SW_ID_FSP;
+ break;
+ }
+ sw->number++;
+ case 30:
+ sw->number++;
+ case 15:
+ sw->type = SW_ID_GP;
+ break;
+ case 33:
+ case 31:
+ sw->type = SW_ID_FFW;
+ break;
+ case 48: /* Ambiguous */
+ if (j == 14) { /* ID length 14*3 -> FFP */
+ sw->type = SW_ID_FFP;
+ sprintf(comment, " [AC %s]", sw_get_bits(idbuf,38,1,3) ? "off" : "on");
+ } else
+ sw->type = SW_ID_PP;
+ break;
+ case 66:
+ sw->bits = 3;
+ case 198:
+ sw->length = 22;
+ case 64:
+ sw->type = SW_ID_3DP;
+ if (j == 160)
+ sw_3dp_id(idbuf, comment, sizeof(comment));
+ break;
+ }
+ }
+
+ } while (k && sw->type == -1);
+
+ if (sw->type == -1) {
+ printk(KERN_WARNING "sidewinder.c: unknown joystick device detected "
+ "on %s, contact <vojtech@ucw.cz>\n", gameport->phys);
+ sw_print_packet("ID", j * 3, idbuf, 3);
+ sw_print_packet("Data", i * m, buf, m);
+ err = -ENODEV;
+ goto fail2;
+ }
+
+#ifdef SW_DEBUG
+ sw_print_packet("ID", j * 3, idbuf, 3);
+ sw_print_packet("Data", i * m, buf, m);
+#endif
+
+ gameport_set_poll_handler(gameport, sw_poll);
+ gameport_set_poll_interval(gameport, 20);
+
+ k = i;
+ l = j;
+
+ for (i = 0; i < sw->number; i++) {
+ int bits, code;
+
+ snprintf(sw->name, sizeof(sw->name),
+ "Microsoft SideWinder %s", sw_name[sw->type]);
+ snprintf(sw->phys[i], sizeof(sw->phys[i]),
+ "%s/input%d", gameport->phys, i);
+
+ sw->dev[i] = input_dev = input_allocate_device();
+ if (!input_dev) {
+ err = -ENOMEM;
+ goto fail3;
+ }
+
+ input_dev->name = sw->name;
+ input_dev->phys = sw->phys[i];
+ input_dev->id.bustype = BUS_GAMEPORT;
+ input_dev->id.vendor = GAMEPORT_ID_VENDOR_MICROSOFT;
+ input_dev->id.product = sw->type;
+ input_dev->id.version = 0x0100;
+ input_dev->dev.parent = &gameport->dev;
+
+ input_set_drvdata(input_dev, sw);
+
+ input_dev->open = sw_open;
+ input_dev->close = sw_close;
+
+ input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
+
+ for (j = 0; (bits = sw_bit[sw->type][j]); j++) {
+ int min, max, fuzz, flat;
+
+ code = sw_abs[sw->type][j];
+ min = bits == 1 ? -1 : 0;
+ max = (1 << bits) - 1;
+ fuzz = (bits >> 1) >= 2 ? 1 << ((bits >> 1) - 2) : 0;
+ flat = code == ABS_THROTTLE || bits < 5 ?
+ 0 : 1 << (bits - 5);
+
+ input_set_abs_params(input_dev, code,
+ min, max, fuzz, flat);
+ }
+
+ for (j = 0; (code = sw_btn[sw->type][j]); j++)
+ __set_bit(code, input_dev->keybit);
+
+ dbg("%s%s [%d-bit id %d data %d]\n", sw->name, comment, m, l, k);
+
+ err = input_register_device(sw->dev[i]);
+ if (err)
+ goto fail4;
+ }
+
+ out: kfree(buf);
+ kfree(idbuf);
+
+ return err;
+
+ fail4: input_free_device(sw->dev[i]);
+ fail3: while (--i >= 0)
+ input_unregister_device(sw->dev[i]);
+ fail2: gameport_close(gameport);
+ fail1: gameport_set_drvdata(gameport, NULL);
+ kfree(sw);
+ goto out;
+}
+
+static void sw_disconnect(struct gameport *gameport)
+{
+ struct sw *sw = gameport_get_drvdata(gameport);
+ int i;
+
+ for (i = 0; i < sw->number; i++)
+ input_unregister_device(sw->dev[i]);
+ gameport_close(gameport);
+ gameport_set_drvdata(gameport, NULL);
+ kfree(sw);
+}
+
+static struct gameport_driver sw_drv = {
+ .driver = {
+ .name = "sidewinder",
+ .owner = THIS_MODULE,
+ },
+ .description = DRIVER_DESC,
+ .connect = sw_connect,
+ .disconnect = sw_disconnect,
+};
+
+static int __init sw_init(void)
+{
+ return gameport_register_driver(&sw_drv);
+}
+
+static void __exit sw_exit(void)
+{
+ gameport_unregister_driver(&sw_drv);
+}
+
+module_init(sw_init);
+module_exit(sw_exit);
diff --git a/drivers/input/joystick/spaceball.c b/drivers/input/joystick/spaceball.c
new file mode 100644
index 0000000..0cd9b29
--- /dev/null
+++ b/drivers/input/joystick/spaceball.c
@@ -0,0 +1,314 @@
+/*
+ * Copyright (c) 1999-2001 Vojtech Pavlik
+ *
+ * Based on the work of:
+ * David Thompson
+ * Joseph Krahn
+ */
+
+/*
+ * SpaceTec SpaceBall 2003/3003/4000 FLX driver for Linux
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * Should you need to contact me, the author, you can do so either by
+ * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
+ * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
+ */
+
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/input.h>
+#include <linux/serio.h>
+
+#define DRIVER_DESC "SpaceTec SpaceBall 2003/3003/4000 FLX driver"
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+/*
+ * Constants.
+ */
+
+#define SPACEBALL_MAX_LENGTH 128
+#define SPACEBALL_MAX_ID 9
+
+#define SPACEBALL_1003 1
+#define SPACEBALL_2003B 3
+#define SPACEBALL_2003C 4
+#define SPACEBALL_3003C 7
+#define SPACEBALL_4000FLX 8
+#define SPACEBALL_4000FLX_L 9
+
+static int spaceball_axes[] = { ABS_X, ABS_Z, ABS_Y, ABS_RX, ABS_RZ, ABS_RY };
+static char *spaceball_names[] = {
+ "?", "SpaceTec SpaceBall 1003", "SpaceTec SpaceBall 2003", "SpaceTec SpaceBall 2003B",
+ "SpaceTec SpaceBall 2003C", "SpaceTec SpaceBall 3003", "SpaceTec SpaceBall SpaceController",
+ "SpaceTec SpaceBall 3003C", "SpaceTec SpaceBall 4000FLX", "SpaceTec SpaceBall 4000FLX Lefty" };
+
+/*
+ * Per-Ball data.
+ */
+
+struct spaceball {
+ struct input_dev *dev;
+ int idx;
+ int escape;
+ unsigned char data[SPACEBALL_MAX_LENGTH];
+ char phys[32];
+};
+
+/*
+ * spaceball_process_packet() decodes packets the driver receives from the
+ * SpaceBall.
+ */
+
+static void spaceball_process_packet(struct spaceball* spaceball)
+{
+ struct input_dev *dev = spaceball->dev;
+ unsigned char *data = spaceball->data;
+ int i;
+
+ if (spaceball->idx < 2) return;
+
+ switch (spaceball->data[0]) {
+
+ case 'D': /* Ball data */
+ if (spaceball->idx != 15) return;
+ for (i = 0; i < 6; i++)
+ input_report_abs(dev, spaceball_axes[i],
+ (__s16)((data[2 * i + 3] << 8) | data[2 * i + 2]));
+ break;
+
+ case 'K': /* Button data */
+ if (spaceball->idx != 3) return;
+ input_report_key(dev, BTN_1, (data[2] & 0x01) || (data[2] & 0x20));
+ input_report_key(dev, BTN_2, data[2] & 0x02);
+ input_report_key(dev, BTN_3, data[2] & 0x04);
+ input_report_key(dev, BTN_4, data[2] & 0x08);
+ input_report_key(dev, BTN_5, data[1] & 0x01);
+ input_report_key(dev, BTN_6, data[1] & 0x02);
+ input_report_key(dev, BTN_7, data[1] & 0x04);
+ input_report_key(dev, BTN_8, data[1] & 0x10);
+ break;
+
+ case '.': /* Advanced button data */
+ if (spaceball->idx != 3) return;
+ input_report_key(dev, BTN_1, data[2] & 0x01);
+ input_report_key(dev, BTN_2, data[2] & 0x02);
+ input_report_key(dev, BTN_3, data[2] & 0x04);
+ input_report_key(dev, BTN_4, data[2] & 0x08);
+ input_report_key(dev, BTN_5, data[2] & 0x10);
+ input_report_key(dev, BTN_6, data[2] & 0x20);
+ input_report_key(dev, BTN_7, data[2] & 0x80);
+ input_report_key(dev, BTN_8, data[1] & 0x01);
+ input_report_key(dev, BTN_9, data[1] & 0x02);
+ input_report_key(dev, BTN_A, data[1] & 0x04);
+ input_report_key(dev, BTN_B, data[1] & 0x08);
+ input_report_key(dev, BTN_C, data[1] & 0x10);
+ input_report_key(dev, BTN_MODE, data[1] & 0x20);
+ break;
+
+ case 'E': /* Device error */
+ spaceball->data[spaceball->idx - 1] = 0;
+ printk(KERN_ERR "spaceball: Device error. [%s]\n", spaceball->data + 1);
+ break;
+
+ case '?': /* Bad command packet */
+ spaceball->data[spaceball->idx - 1] = 0;
+ printk(KERN_ERR "spaceball: Bad command. [%s]\n", spaceball->data + 1);
+ break;
+ }
+
+ input_sync(dev);
+}
+
+/*
+ * Spaceball 4000 FLX packets all start with a one letter packet-type decriptor,
+ * and end in 0x0d. It uses '^' as an escape for CR, XOFF and XON characters which
+ * can occur in the axis values.
+ */
+
+static irqreturn_t spaceball_interrupt(struct serio *serio,
+ unsigned char data, unsigned int flags)
+{
+ struct spaceball *spaceball = serio_get_drvdata(serio);
+
+ switch (data) {
+ case 0xd:
+ spaceball_process_packet(spaceball);
+ spaceball->idx = 0;
+ spaceball->escape = 0;
+ break;
+ case '^':
+ if (!spaceball->escape) {
+ spaceball->escape = 1;
+ break;
+ }
+ spaceball->escape = 0;
+ case 'M':
+ case 'Q':
+ case 'S':
+ if (spaceball->escape) {
+ spaceball->escape = 0;
+ data &= 0x1f;
+ }
+ default:
+ if (spaceball->escape)
+ spaceball->escape = 0;
+ if (spaceball->idx < SPACEBALL_MAX_LENGTH)
+ spaceball->data[spaceball->idx++] = data;
+ break;
+ }
+ return IRQ_HANDLED;
+}
+
+/*
+ * spaceball_disconnect() is the opposite of spaceball_connect()
+ */
+
+static void spaceball_disconnect(struct serio *serio)
+{
+ struct spaceball* spaceball = serio_get_drvdata(serio);
+
+ serio_close(serio);
+ serio_set_drvdata(serio, NULL);
+ input_unregister_device(spaceball->dev);
+ kfree(spaceball);
+}
+
+/*
+ * spaceball_connect() is the routine that is called when someone adds a
+ * new serio device that supports Spaceball protocol and registers it as
+ * an input device.
+ */
+
+static int spaceball_connect(struct serio *serio, struct serio_driver *drv)
+{
+ struct spaceball *spaceball;
+ struct input_dev *input_dev;
+ int err = -ENOMEM;
+ int i, id;
+
+ if ((id = serio->id.id) > SPACEBALL_MAX_ID)
+ return -ENODEV;
+
+ spaceball = kmalloc(sizeof(struct spaceball), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!spaceball || !input_dev)
+ goto fail1;
+
+ spaceball->dev = input_dev;
+ snprintf(spaceball->phys, sizeof(spaceball->phys), "%s/input0", serio->phys);
+
+ input_dev->name = spaceball_names[id];
+ input_dev->phys = spaceball->phys;
+ input_dev->id.bustype = BUS_RS232;
+ input_dev->id.vendor = SERIO_SPACEBALL;
+ input_dev->id.product = id;
+ input_dev->id.version = 0x0100;
+ input_dev->dev.parent = &serio->dev;
+
+ input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
+
+ switch (id) {
+ case SPACEBALL_4000FLX:
+ case SPACEBALL_4000FLX_L:
+ input_dev->keybit[BIT_WORD(BTN_0)] |= BIT_MASK(BTN_9);
+ input_dev->keybit[BIT_WORD(BTN_A)] |= BIT_MASK(BTN_A) |
+ BIT_MASK(BTN_B) | BIT_MASK(BTN_C) |
+ BIT_MASK(BTN_MODE);
+ default:
+ input_dev->keybit[BIT_WORD(BTN_0)] |= BIT_MASK(BTN_2) |
+ BIT_MASK(BTN_3) | BIT_MASK(BTN_4) |
+ BIT_MASK(BTN_5) | BIT_MASK(BTN_6) |
+ BIT_MASK(BTN_7) | BIT_MASK(BTN_8);
+ case SPACEBALL_3003C:
+ input_dev->keybit[BIT_WORD(BTN_0)] |= BIT_MASK(BTN_1) |
+ BIT_MASK(BTN_8);
+ }
+
+ for (i = 0; i < 3; i++) {
+ input_set_abs_params(input_dev, ABS_X + i, -8000, 8000, 8, 40);
+ input_set_abs_params(input_dev, ABS_RX + i, -1600, 1600, 2, 8);
+ }
+
+ serio_set_drvdata(serio, spaceball);
+
+ err = serio_open(serio, drv);
+ if (err)
+ goto fail2;
+
+ err = input_register_device(spaceball->dev);
+ if (err)
+ goto fail3;
+
+ return 0;
+
+ fail3: serio_close(serio);
+ fail2: serio_set_drvdata(serio, NULL);
+ fail1: input_free_device(input_dev);
+ kfree(spaceball);
+ return err;
+}
+
+/*
+ * The serio driver structure.
+ */
+
+static struct serio_device_id spaceball_serio_ids[] = {
+ {
+ .type = SERIO_RS232,
+ .proto = SERIO_SPACEBALL,
+ .id = SERIO_ANY,
+ .extra = SERIO_ANY,
+ },
+ { 0 }
+};
+
+MODULE_DEVICE_TABLE(serio, spaceball_serio_ids);
+
+static struct serio_driver spaceball_drv = {
+ .driver = {
+ .name = "spaceball",
+ },
+ .description = DRIVER_DESC,
+ .id_table = spaceball_serio_ids,
+ .interrupt = spaceball_interrupt,
+ .connect = spaceball_connect,
+ .disconnect = spaceball_disconnect,
+};
+
+/*
+ * The functions for inserting/removing us as a module.
+ */
+
+static int __init spaceball_init(void)
+{
+ return serio_register_driver(&spaceball_drv);
+}
+
+static void __exit spaceball_exit(void)
+{
+ serio_unregister_driver(&spaceball_drv);
+}
+
+module_init(spaceball_init);
+module_exit(spaceball_exit);
diff --git a/drivers/input/joystick/spaceorb.c b/drivers/input/joystick/spaceorb.c
new file mode 100644
index 0000000..a694bf8
--- /dev/null
+++ b/drivers/input/joystick/spaceorb.c
@@ -0,0 +1,255 @@
+/*
+ * Copyright (c) 1999-2001 Vojtech Pavlik
+ *
+ * Based on the work of:
+ * David Thompson
+ */
+
+/*
+ * SpaceTec SpaceOrb 360 and Avenger 6dof controller driver for Linux
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * Should you need to contact me, the author, you can do so either by
+ * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
+ * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
+ */
+
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/input.h>
+#include <linux/serio.h>
+
+#define DRIVER_DESC "SpaceTec SpaceOrb 360 and Avenger 6dof controller driver"
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+/*
+ * Constants.
+ */
+
+#define SPACEORB_MAX_LENGTH 64
+
+static int spaceorb_buttons[] = { BTN_TL, BTN_TR, BTN_Y, BTN_X, BTN_B, BTN_A };
+static int spaceorb_axes[] = { ABS_X, ABS_Y, ABS_Z, ABS_RX, ABS_RY, ABS_RZ };
+
+/*
+ * Per-Orb data.
+ */
+
+struct spaceorb {
+ struct input_dev *dev;
+ int idx;
+ unsigned char data[SPACEORB_MAX_LENGTH];
+ char phys[32];
+};
+
+static unsigned char spaceorb_xor[] = "SpaceWare";
+
+static unsigned char *spaceorb_errors[] = { "EEPROM storing 0 failed", "Receive queue overflow", "Transmit queue timeout",
+ "Bad packet", "Power brown-out", "EEPROM checksum error", "Hardware fault" };
+
+/*
+ * spaceorb_process_packet() decodes packets the driver receives from the
+ * SpaceOrb.
+ */
+
+static void spaceorb_process_packet(struct spaceorb *spaceorb)
+{
+ struct input_dev *dev = spaceorb->dev;
+ unsigned char *data = spaceorb->data;
+ unsigned char c = 0;
+ int axes[6];
+ int i;
+
+ if (spaceorb->idx < 2) return;
+ for (i = 0; i < spaceorb->idx; i++) c ^= data[i];
+ if (c) return;
+
+ switch (data[0]) {
+
+ case 'R': /* Reset packet */
+ spaceorb->data[spaceorb->idx - 1] = 0;
+ for (i = 1; i < spaceorb->idx && spaceorb->data[i] == ' '; i++);
+ printk(KERN_INFO "input: %s [%s] is %s\n",
+ dev->name, spaceorb->data + i, spaceorb->phys);
+ break;
+
+ case 'D': /* Ball + button data */
+ if (spaceorb->idx != 12) return;
+ for (i = 0; i < 9; i++) spaceorb->data[i+2] ^= spaceorb_xor[i];
+ axes[0] = ( data[2] << 3) | (data[ 3] >> 4);
+ axes[1] = ((data[3] & 0x0f) << 6) | (data[ 4] >> 1);
+ axes[2] = ((data[4] & 0x01) << 9) | (data[ 5] << 2) | (data[4] >> 5);
+ axes[3] = ((data[6] & 0x1f) << 5) | (data[ 7] >> 2);
+ axes[4] = ((data[7] & 0x03) << 8) | (data[ 8] << 1) | (data[7] >> 6);
+ axes[5] = ((data[9] & 0x3f) << 4) | (data[10] >> 3);
+ for (i = 0; i < 6; i++)
+ input_report_abs(dev, spaceorb_axes[i], axes[i] - ((axes[i] & 0x200) ? 1024 : 0));
+ for (i = 0; i < 6; i++)
+ input_report_key(dev, spaceorb_buttons[i], (data[1] >> i) & 1);
+ break;
+
+ case 'K': /* Button data */
+ if (spaceorb->idx != 5) return;
+ for (i = 0; i < 6; i++)
+ input_report_key(dev, spaceorb_buttons[i], (data[2] >> i) & 1);
+
+ break;
+
+ case 'E': /* Error packet */
+ if (spaceorb->idx != 4) return;
+ printk(KERN_ERR "spaceorb: Device error. [ ");
+ for (i = 0; i < 7; i++) if (data[1] & (1 << i)) printk("%s ", spaceorb_errors[i]);
+ printk("]\n");
+ break;
+ }
+
+ input_sync(dev);
+}
+
+static irqreturn_t spaceorb_interrupt(struct serio *serio,
+ unsigned char data, unsigned int flags)
+{
+ struct spaceorb* spaceorb = serio_get_drvdata(serio);
+
+ if (~data & 0x80) {
+ if (spaceorb->idx) spaceorb_process_packet(spaceorb);
+ spaceorb->idx = 0;
+ }
+ if (spaceorb->idx < SPACEORB_MAX_LENGTH)
+ spaceorb->data[spaceorb->idx++] = data & 0x7f;
+ return IRQ_HANDLED;
+}
+
+/*
+ * spaceorb_disconnect() is the opposite of spaceorb_connect()
+ */
+
+static void spaceorb_disconnect(struct serio *serio)
+{
+ struct spaceorb* spaceorb = serio_get_drvdata(serio);
+
+ serio_close(serio);
+ serio_set_drvdata(serio, NULL);
+ input_unregister_device(spaceorb->dev);
+ kfree(spaceorb);
+}
+
+/*
+ * spaceorb_connect() is the routine that is called when someone adds a
+ * new serio device that supports SpaceOrb/Avenger protocol and registers
+ * it as an input device.
+ */
+
+static int spaceorb_connect(struct serio *serio, struct serio_driver *drv)
+{
+ struct spaceorb *spaceorb;
+ struct input_dev *input_dev;
+ int err = -ENOMEM;
+ int i;
+
+ spaceorb = kzalloc(sizeof(struct spaceorb), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!spaceorb || !input_dev)
+ goto fail1;
+
+ spaceorb->dev = input_dev;
+ snprintf(spaceorb->phys, sizeof(spaceorb->phys), "%s/input0", serio->phys);
+
+ input_dev->name = "SpaceTec SpaceOrb 360 / Avenger";
+ input_dev->phys = spaceorb->phys;
+ input_dev->id.bustype = BUS_RS232;
+ input_dev->id.vendor = SERIO_SPACEORB;
+ input_dev->id.product = 0x0001;
+ input_dev->id.version = 0x0100;
+ input_dev->dev.parent = &serio->dev;
+
+ input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
+
+ for (i = 0; i < 6; i++)
+ set_bit(spaceorb_buttons[i], input_dev->keybit);
+
+ for (i = 0; i < 6; i++)
+ input_set_abs_params(input_dev, spaceorb_axes[i], -508, 508, 0, 0);
+
+ serio_set_drvdata(serio, spaceorb);
+
+ err = serio_open(serio, drv);
+ if (err)
+ goto fail2;
+
+ err = input_register_device(spaceorb->dev);
+ if (err)
+ goto fail3;
+
+ return 0;
+
+ fail3: serio_close(serio);
+ fail2: serio_set_drvdata(serio, NULL);
+ fail1: input_free_device(input_dev);
+ kfree(spaceorb);
+ return err;
+}
+
+/*
+ * The serio driver structure.
+ */
+
+static struct serio_device_id spaceorb_serio_ids[] = {
+ {
+ .type = SERIO_RS232,
+ .proto = SERIO_SPACEORB,
+ .id = SERIO_ANY,
+ .extra = SERIO_ANY,
+ },
+ { 0 }
+};
+
+MODULE_DEVICE_TABLE(serio, spaceorb_serio_ids);
+
+static struct serio_driver spaceorb_drv = {
+ .driver = {
+ .name = "spaceorb",
+ },
+ .description = DRIVER_DESC,
+ .id_table = spaceorb_serio_ids,
+ .interrupt = spaceorb_interrupt,
+ .connect = spaceorb_connect,
+ .disconnect = spaceorb_disconnect,
+};
+
+/*
+ * The functions for inserting/removing us as a module.
+ */
+
+static int __init spaceorb_init(void)
+{
+ return serio_register_driver(&spaceorb_drv);
+}
+
+static void __exit spaceorb_exit(void)
+{
+ serio_unregister_driver(&spaceorb_drv);
+}
+
+module_init(spaceorb_init);
+module_exit(spaceorb_exit);
diff --git a/drivers/input/joystick/stinger.c b/drivers/input/joystick/stinger.c
new file mode 100644
index 0000000..e0db9f5
--- /dev/null
+++ b/drivers/input/joystick/stinger.c
@@ -0,0 +1,226 @@
+/*
+ * Copyright (c) 2000-2001 Vojtech Pavlik
+ * Copyright (c) 2000 Mark Fletcher
+ */
+
+/*
+ * Gravis Stinger gamepad driver for Linux
+ */
+
+/*
+ * This program is free warftware; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * Should you need to contact me, the author, you can do so either by
+ * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
+ * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/input.h>
+#include <linux/serio.h>
+#include <linux/init.h>
+
+#define DRIVER_DESC "Gravis Stinger gamepad driver"
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+/*
+ * Constants.
+ */
+
+#define STINGER_MAX_LENGTH 8
+
+/*
+ * Per-Stinger data.
+ */
+
+struct stinger {
+ struct input_dev *dev;
+ int idx;
+ unsigned char data[STINGER_MAX_LENGTH];
+ char phys[32];
+};
+
+/*
+ * stinger_process_packet() decodes packets the driver receives from the
+ * Stinger. It updates the data accordingly.
+ */
+
+static void stinger_process_packet(struct stinger *stinger)
+{
+ struct input_dev *dev = stinger->dev;
+ unsigned char *data = stinger->data;
+
+ if (!stinger->idx) return;
+
+ input_report_key(dev, BTN_A, ((data[0] & 0x20) >> 5));
+ input_report_key(dev, BTN_B, ((data[0] & 0x10) >> 4));
+ input_report_key(dev, BTN_C, ((data[0] & 0x08) >> 3));
+ input_report_key(dev, BTN_X, ((data[0] & 0x04) >> 2));
+ input_report_key(dev, BTN_Y, ((data[3] & 0x20) >> 5));
+ input_report_key(dev, BTN_Z, ((data[3] & 0x10) >> 4));
+ input_report_key(dev, BTN_TL, ((data[3] & 0x08) >> 3));
+ input_report_key(dev, BTN_TR, ((data[3] & 0x04) >> 2));
+ input_report_key(dev, BTN_SELECT, ((data[3] & 0x02) >> 1));
+ input_report_key(dev, BTN_START, (data[3] & 0x01));
+
+ input_report_abs(dev, ABS_X, (data[1] & 0x3F) - ((data[0] & 0x01) << 6));
+ input_report_abs(dev, ABS_Y, ((data[0] & 0x02) << 5) - (data[2] & 0x3F));
+
+ input_sync(dev);
+
+ return;
+}
+
+/*
+ * stinger_interrupt() is called by the low level driver when characters
+ * are ready for us. We then buffer them for further processing, or call the
+ * packet processing routine.
+ */
+
+static irqreturn_t stinger_interrupt(struct serio *serio,
+ unsigned char data, unsigned int flags)
+{
+ struct stinger *stinger = serio_get_drvdata(serio);
+
+ /* All Stinger packets are 4 bytes */
+
+ if (stinger->idx < STINGER_MAX_LENGTH)
+ stinger->data[stinger->idx++] = data;
+
+ if (stinger->idx == 4) {
+ stinger_process_packet(stinger);
+ stinger->idx = 0;
+ }
+
+ return IRQ_HANDLED;
+}
+
+/*
+ * stinger_disconnect() is the opposite of stinger_connect()
+ */
+
+static void stinger_disconnect(struct serio *serio)
+{
+ struct stinger *stinger = serio_get_drvdata(serio);
+
+ serio_close(serio);
+ serio_set_drvdata(serio, NULL);
+ input_unregister_device(stinger->dev);
+ kfree(stinger);
+}
+
+/*
+ * stinger_connect() is the routine that is called when someone adds a
+ * new serio device that supports Stinger protocol and registers it as
+ * an input device.
+ */
+
+static int stinger_connect(struct serio *serio, struct serio_driver *drv)
+{
+ struct stinger *stinger;
+ struct input_dev *input_dev;
+ int err = -ENOMEM;
+
+ stinger = kmalloc(sizeof(struct stinger), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!stinger || !input_dev)
+ goto fail1;
+
+ stinger->dev = input_dev;
+ snprintf(stinger->phys, sizeof(stinger->phys), "%s/serio0", serio->phys);
+
+ input_dev->name = "Gravis Stinger";
+ input_dev->phys = stinger->phys;
+ input_dev->id.bustype = BUS_RS232;
+ input_dev->id.vendor = SERIO_STINGER;
+ input_dev->id.product = 0x0001;
+ input_dev->id.version = 0x0100;
+ input_dev->dev.parent = &serio->dev;
+
+ input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
+ input_dev->keybit[BIT_WORD(BTN_A)] = BIT_MASK(BTN_A) | BIT_MASK(BTN_B) |
+ BIT_MASK(BTN_C) | BIT_MASK(BTN_X) | BIT_MASK(BTN_Y) |
+ BIT_MASK(BTN_Z) | BIT_MASK(BTN_TL) | BIT_MASK(BTN_TR) |
+ BIT_MASK(BTN_START) | BIT_MASK(BTN_SELECT);
+ input_set_abs_params(input_dev, ABS_X, -64, 64, 0, 4);
+ input_set_abs_params(input_dev, ABS_Y, -64, 64, 0, 4);
+
+ serio_set_drvdata(serio, stinger);
+
+ err = serio_open(serio, drv);
+ if (err)
+ goto fail2;
+
+ err = input_register_device(stinger->dev);
+ if (err)
+ goto fail3;
+
+ return 0;
+
+ fail3: serio_close(serio);
+ fail2: serio_set_drvdata(serio, NULL);
+ fail1: input_free_device(input_dev);
+ kfree(stinger);
+ return err;
+}
+
+/*
+ * The serio driver structure.
+ */
+
+static struct serio_device_id stinger_serio_ids[] = {
+ {
+ .type = SERIO_RS232,
+ .proto = SERIO_STINGER,
+ .id = SERIO_ANY,
+ .extra = SERIO_ANY,
+ },
+ { 0 }
+};
+
+MODULE_DEVICE_TABLE(serio, stinger_serio_ids);
+
+static struct serio_driver stinger_drv = {
+ .driver = {
+ .name = "stinger",
+ },
+ .description = DRIVER_DESC,
+ .id_table = stinger_serio_ids,
+ .interrupt = stinger_interrupt,
+ .connect = stinger_connect,
+ .disconnect = stinger_disconnect,
+};
+
+/*
+ * The functions for inserting/removing us as a module.
+ */
+
+static int __init stinger_init(void)
+{
+ return serio_register_driver(&stinger_drv);
+}
+
+static void __exit stinger_exit(void)
+{
+ serio_unregister_driver(&stinger_drv);
+}
+
+module_init(stinger_init);
+module_exit(stinger_exit);
diff --git a/drivers/input/joystick/tmdc.c b/drivers/input/joystick/tmdc.c
new file mode 100644
index 0000000..d6c6098
--- /dev/null
+++ b/drivers/input/joystick/tmdc.c
@@ -0,0 +1,450 @@
+/*
+ * Copyright (c) 1998-2001 Vojtech Pavlik
+ *
+ * Based on the work of:
+ * Trystan Larey-Williams
+ */
+
+/*
+ * ThrustMaster DirectConnect (BSP) joystick family driver for Linux
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * Should you need to contact me, the author, you can do so either by
+ * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
+ * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
+ */
+
+#include <linux/delay.h>
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/gameport.h>
+#include <linux/input.h>
+#include <linux/jiffies.h>
+
+#define DRIVER_DESC "ThrustMaster DirectConnect joystick driver"
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+#define TMDC_MAX_START 600 /* 600 us */
+#define TMDC_MAX_STROBE 60 /* 60 us */
+#define TMDC_MAX_LENGTH 13
+
+#define TMDC_MODE_M3DI 1
+#define TMDC_MODE_3DRP 3
+#define TMDC_MODE_AT 4
+#define TMDC_MODE_FM 8
+#define TMDC_MODE_FGP 163
+
+#define TMDC_BYTE_ID 10
+#define TMDC_BYTE_REV 11
+#define TMDC_BYTE_DEF 12
+
+#define TMDC_ABS 7
+#define TMDC_ABS_HAT 4
+#define TMDC_BTN 16
+
+static const unsigned char tmdc_byte_a[16] = { 0, 1, 3, 4, 6, 7 };
+static const unsigned char tmdc_byte_d[16] = { 2, 5, 8, 9 };
+
+static const signed char tmdc_abs[TMDC_ABS] =
+ { ABS_X, ABS_Y, ABS_RUDDER, ABS_THROTTLE, ABS_RX, ABS_RY, ABS_RZ };
+static const signed char tmdc_abs_hat[TMDC_ABS_HAT] =
+ { ABS_HAT0X, ABS_HAT0Y, ABS_HAT1X, ABS_HAT1Y };
+static const signed char tmdc_abs_at[TMDC_ABS] =
+ { ABS_X, ABS_Y, ABS_RUDDER, -1, ABS_THROTTLE };
+static const signed char tmdc_abs_fm[TMDC_ABS] =
+ { ABS_RX, ABS_RY, ABS_X, ABS_Y };
+
+static const short tmdc_btn_pad[TMDC_BTN] =
+ { BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z, BTN_START, BTN_SELECT, BTN_TL, BTN_TR };
+static const short tmdc_btn_joy[TMDC_BTN] =
+ { BTN_TRIGGER, BTN_THUMB, BTN_TOP, BTN_TOP2, BTN_BASE, BTN_BASE2, BTN_THUMB2, BTN_PINKIE,
+ BTN_BASE3, BTN_BASE4, BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z };
+static const short tmdc_btn_fm[TMDC_BTN] =
+ { BTN_TRIGGER, BTN_C, BTN_B, BTN_A, BTN_THUMB, BTN_X, BTN_Y, BTN_Z, BTN_TOP, BTN_TOP2 };
+static const short tmdc_btn_at[TMDC_BTN] =
+ { BTN_TRIGGER, BTN_THUMB2, BTN_PINKIE, BTN_THUMB, BTN_BASE6, BTN_BASE5, BTN_BASE4,
+ BTN_BASE3, BTN_BASE2, BTN_BASE };
+
+static const struct {
+ int x;
+ int y;
+} tmdc_hat_to_axis[] = {{ 0, 0}, { 1, 0}, { 0,-1}, {-1, 0}, { 0, 1}};
+
+static const struct tmdc_model {
+ unsigned char id;
+ const char *name;
+ char abs;
+ char hats;
+ char btnc[4];
+ char btno[4];
+ const signed char *axes;
+ const short *buttons;
+} tmdc_models[] = {
+ { 1, "ThrustMaster Millenium 3D Inceptor", 6, 2, { 4, 2 }, { 4, 6 }, tmdc_abs, tmdc_btn_joy },
+ { 3, "ThrustMaster Rage 3D Gamepad", 2, 0, { 8, 2 }, { 0, 0 }, tmdc_abs, tmdc_btn_pad },
+ { 4, "ThrustMaster Attack Throttle", 5, 2, { 4, 6 }, { 4, 2 }, tmdc_abs_at, tmdc_btn_at },
+ { 8, "ThrustMaster FragMaster", 4, 0, { 8, 2 }, { 0, 0 }, tmdc_abs_fm, tmdc_btn_fm },
+ { 163, "Thrustmaster Fusion GamePad", 2, 0, { 8, 2 }, { 0, 0 }, tmdc_abs, tmdc_btn_pad },
+ { 0, "Unknown %d-axis, %d-button TM device %d", 0, 0, { 0, 0 }, { 0, 0 }, tmdc_abs, tmdc_btn_joy }
+};
+
+
+struct tmdc_port {
+ struct input_dev *dev;
+ char name[64];
+ char phys[32];
+ int mode;
+ const signed char *abs;
+ const short *btn;
+ unsigned char absc;
+ unsigned char btnc[4];
+ unsigned char btno[4];
+};
+
+struct tmdc {
+ struct gameport *gameport;
+ struct tmdc_port *port[2];
+#if 0
+ struct input_dev *dev[2];
+ char name[2][64];
+ char phys[2][32];
+ int mode[2];
+ signed char *abs[2];
+ short *btn[2];
+ unsigned char absc[2];
+ unsigned char btnc[2][4];
+ unsigned char btno[2][4];
+#endif
+ int reads;
+ int bads;
+ unsigned char exists;
+};
+
+/*
+ * tmdc_read_packet() reads a ThrustMaster packet.
+ */
+
+static int tmdc_read_packet(struct gameport *gameport, unsigned char data[2][TMDC_MAX_LENGTH])
+{
+ unsigned char u, v, w, x;
+ unsigned long flags;
+ int i[2], j[2], t[2], p, k;
+
+ p = gameport_time(gameport, TMDC_MAX_STROBE);
+
+ for (k = 0; k < 2; k++) {
+ t[k] = gameport_time(gameport, TMDC_MAX_START);
+ i[k] = j[k] = 0;
+ }
+
+ local_irq_save(flags);
+ gameport_trigger(gameport);
+
+ w = gameport_read(gameport) >> 4;
+
+ do {
+ x = w;
+ w = gameport_read(gameport) >> 4;
+
+ for (k = 0, v = w, u = x; k < 2; k++, v >>= 2, u >>= 2) {
+ if (~v & u & 2) {
+ if (t[k] <= 0 || i[k] >= TMDC_MAX_LENGTH) continue;
+ t[k] = p;
+ if (j[k] == 0) { /* Start bit */
+ if (~v & 1) t[k] = 0;
+ data[k][i[k]] = 0; j[k]++; continue;
+ }
+ if (j[k] == 9) { /* Stop bit */
+ if (v & 1) t[k] = 0;
+ j[k] = 0; i[k]++; continue;
+ }
+ data[k][i[k]] |= (~v & 1) << (j[k]++ - 1); /* Data bit */
+ }
+ t[k]--;
+ }
+ } while (t[0] > 0 || t[1] > 0);
+
+ local_irq_restore(flags);
+
+ return (i[0] == TMDC_MAX_LENGTH) | ((i[1] == TMDC_MAX_LENGTH) << 1);
+}
+
+static int tmdc_parse_packet(struct tmdc_port *port, unsigned char *data)
+{
+ int i, k, l;
+
+ if (data[TMDC_BYTE_ID] != port->mode)
+ return -1;
+
+ for (i = 0; i < port->absc; i++) {
+ if (port->abs[i] < 0)
+ return 0;
+
+ input_report_abs(port->dev, port->abs[i], data[tmdc_byte_a[i]]);
+ }
+
+ switch (port->mode) {
+
+ case TMDC_MODE_M3DI:
+
+ i = tmdc_byte_d[0];
+ input_report_abs(port->dev, ABS_HAT0X, ((data[i] >> 3) & 1) - ((data[i] >> 1) & 1));
+ input_report_abs(port->dev, ABS_HAT0Y, ((data[i] >> 2) & 1) - ( data[i] & 1));
+ break;
+
+ case TMDC_MODE_AT:
+
+ i = tmdc_byte_a[3];
+ input_report_abs(port->dev, ABS_HAT0X, tmdc_hat_to_axis[(data[i] - 141) / 25].x);
+ input_report_abs(port->dev, ABS_HAT0Y, tmdc_hat_to_axis[(data[i] - 141) / 25].y);
+ break;
+
+ }
+
+ for (k = l = 0; k < 4; k++) {
+ for (i = 0; i < port->btnc[k]; i++)
+ input_report_key(port->dev, port->btn[i + l],
+ ((data[tmdc_byte_d[k]] >> (i + port->btno[k])) & 1));
+ l += port->btnc[k];
+ }
+
+ input_sync(port->dev);
+
+ return 0;
+}
+
+/*
+ * tmdc_poll() reads and analyzes ThrustMaster joystick data.
+ */
+
+static void tmdc_poll(struct gameport *gameport)
+{
+ unsigned char data[2][TMDC_MAX_LENGTH];
+ struct tmdc *tmdc = gameport_get_drvdata(gameport);
+ unsigned char r, bad = 0;
+ int i;
+
+ tmdc->reads++;
+
+ if ((r = tmdc_read_packet(tmdc->gameport, data)) != tmdc->exists)
+ bad = 1;
+ else {
+ for (i = 0; i < 2; i++) {
+ if (r & (1 << i) & tmdc->exists) {
+
+ if (tmdc_parse_packet(tmdc->port[i], data[i]))
+ bad = 1;
+ }
+ }
+ }
+
+ tmdc->bads += bad;
+}
+
+static int tmdc_open(struct input_dev *dev)
+{
+ struct tmdc *tmdc = input_get_drvdata(dev);
+
+ gameport_start_polling(tmdc->gameport);
+ return 0;
+}
+
+static void tmdc_close(struct input_dev *dev)
+{
+ struct tmdc *tmdc = input_get_drvdata(dev);
+
+ gameport_stop_polling(tmdc->gameport);
+}
+
+static int tmdc_setup_port(struct tmdc *tmdc, int idx, unsigned char *data)
+{
+ const struct tmdc_model *model;
+ struct tmdc_port *port;
+ struct input_dev *input_dev;
+ int i, j, b = 0;
+ int err;
+
+ tmdc->port[idx] = port = kzalloc(sizeof (struct tmdc_port), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!port || !input_dev) {
+ err = -ENOMEM;
+ goto fail;
+ }
+
+ port->mode = data[TMDC_BYTE_ID];
+
+ for (model = tmdc_models; model->id && model->id != port->mode; model++)
+ /* empty */;
+
+ port->abs = model->axes;
+ port->btn = model->buttons;
+
+ if (!model->id) {
+ port->absc = data[TMDC_BYTE_DEF] >> 4;
+ for (i = 0; i < 4; i++)
+ port->btnc[i] = i < (data[TMDC_BYTE_DEF] & 0xf) ? 8 : 0;
+ } else {
+ port->absc = model->abs;
+ for (i = 0; i < 4; i++)
+ port->btnc[i] = model->btnc[i];
+ }
+
+ for (i = 0; i < 4; i++)
+ port->btno[i] = model->btno[i];
+
+ snprintf(port->name, sizeof(port->name), model->name,
+ port->absc, (data[TMDC_BYTE_DEF] & 0xf) << 3, port->mode);
+ snprintf(port->phys, sizeof(port->phys), "%s/input%d", tmdc->gameport->phys, i);
+
+ port->dev = input_dev;
+
+ input_dev->name = port->name;
+ input_dev->phys = port->phys;
+ input_dev->id.bustype = BUS_GAMEPORT;
+ input_dev->id.vendor = GAMEPORT_ID_VENDOR_THRUSTMASTER;
+ input_dev->id.product = model->id;
+ input_dev->id.version = 0x0100;
+ input_dev->dev.parent = &tmdc->gameport->dev;
+
+ input_set_drvdata(input_dev, tmdc);
+
+ input_dev->open = tmdc_open;
+ input_dev->close = tmdc_close;
+
+ input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
+
+ for (i = 0; i < port->absc && i < TMDC_ABS; i++)
+ if (port->abs[i] >= 0)
+ input_set_abs_params(input_dev, port->abs[i], 8, 248, 2, 4);
+
+ for (i = 0; i < model->hats && i < TMDC_ABS_HAT; i++)
+ input_set_abs_params(input_dev, tmdc_abs_hat[i], -1, 1, 0, 0);
+
+ for (i = 0; i < 4; i++) {
+ for (j = 0; j < port->btnc[i] && j < TMDC_BTN; j++)
+ set_bit(port->btn[j + b], input_dev->keybit);
+ b += port->btnc[i];
+ }
+
+ err = input_register_device(port->dev);
+ if (err)
+ goto fail;
+
+ return 0;
+
+ fail: input_free_device(input_dev);
+ kfree(port);
+ return err;
+}
+
+/*
+ * tmdc_probe() probes for ThrustMaster type joysticks.
+ */
+
+static int tmdc_connect(struct gameport *gameport, struct gameport_driver *drv)
+{
+ unsigned char data[2][TMDC_MAX_LENGTH];
+ struct tmdc *tmdc;
+ int i;
+ int err;
+
+ if (!(tmdc = kzalloc(sizeof(struct tmdc), GFP_KERNEL)))
+ return -ENOMEM;
+
+ tmdc->gameport = gameport;
+
+ gameport_set_drvdata(gameport, tmdc);
+
+ err = gameport_open(gameport, drv, GAMEPORT_MODE_RAW);
+ if (err)
+ goto fail1;
+
+ if (!(tmdc->exists = tmdc_read_packet(gameport, data))) {
+ err = -ENODEV;
+ goto fail2;
+ }
+
+ gameport_set_poll_handler(gameport, tmdc_poll);
+ gameport_set_poll_interval(gameport, 20);
+
+ for (i = 0; i < 2; i++) {
+ if (tmdc->exists & (1 << i)) {
+
+ err = tmdc_setup_port(tmdc, i, data[i]);
+ if (err)
+ goto fail3;
+ }
+ }
+
+ return 0;
+
+ fail3: while (--i >= 0) {
+ if (tmdc->port[i]) {
+ input_unregister_device(tmdc->port[i]->dev);
+ kfree(tmdc->port[i]);
+ }
+ }
+ fail2: gameport_close(gameport);
+ fail1: gameport_set_drvdata(gameport, NULL);
+ kfree(tmdc);
+ return err;
+}
+
+static void tmdc_disconnect(struct gameport *gameport)
+{
+ struct tmdc *tmdc = gameport_get_drvdata(gameport);
+ int i;
+
+ for (i = 0; i < 2; i++) {
+ if (tmdc->port[i]) {
+ input_unregister_device(tmdc->port[i]->dev);
+ kfree(tmdc->port[i]);
+ }
+ }
+ gameport_close(gameport);
+ gameport_set_drvdata(gameport, NULL);
+ kfree(tmdc);
+}
+
+static struct gameport_driver tmdc_drv = {
+ .driver = {
+ .name = "tmdc",
+ .owner = THIS_MODULE,
+ },
+ .description = DRIVER_DESC,
+ .connect = tmdc_connect,
+ .disconnect = tmdc_disconnect,
+};
+
+static int __init tmdc_init(void)
+{
+ return gameport_register_driver(&tmdc_drv);
+}
+
+static void __exit tmdc_exit(void)
+{
+ gameport_unregister_driver(&tmdc_drv);
+}
+
+module_init(tmdc_init);
+module_exit(tmdc_exit);
diff --git a/drivers/input/joystick/turbografx.c b/drivers/input/joystick/turbografx.c
new file mode 100644
index 0000000..27b6a3c
--- /dev/null
+++ b/drivers/input/joystick/turbografx.c
@@ -0,0 +1,325 @@
+/*
+ * Copyright (c) 1998-2001 Vojtech Pavlik
+ *
+ * Based on the work of:
+ * Steffen Schwenke
+ */
+
+/*
+ * TurboGraFX parallel port interface driver for Linux.
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * Should you need to contact me, the author, you can do so either by
+ * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
+ * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
+ */
+
+#include <linux/kernel.h>
+#include <linux/parport.h>
+#include <linux/input.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/mutex.h>
+#include <linux/slab.h>
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
+MODULE_DESCRIPTION("TurboGraFX parallel port interface driver");
+MODULE_LICENSE("GPL");
+
+#define TGFX_MAX_PORTS 3
+#define TGFX_MAX_DEVICES 7
+
+struct tgfx_config {
+ int args[TGFX_MAX_DEVICES + 1];
+ unsigned int nargs;
+};
+
+static struct tgfx_config tgfx_cfg[TGFX_MAX_PORTS] __initdata;
+
+module_param_array_named(map, tgfx_cfg[0].args, int, &tgfx_cfg[0].nargs, 0);
+MODULE_PARM_DESC(map, "Describes first set of devices (<parport#>,<js1>,<js2>,..<js7>");
+module_param_array_named(map2, tgfx_cfg[1].args, int, &tgfx_cfg[1].nargs, 0);
+MODULE_PARM_DESC(map2, "Describes second set of devices");
+module_param_array_named(map3, tgfx_cfg[2].args, int, &tgfx_cfg[2].nargs, 0);
+MODULE_PARM_DESC(map3, "Describes third set of devices");
+
+#define TGFX_REFRESH_TIME HZ/100 /* 10 ms */
+
+#define TGFX_TRIGGER 0x08
+#define TGFX_UP 0x10
+#define TGFX_DOWN 0x20
+#define TGFX_LEFT 0x40
+#define TGFX_RIGHT 0x80
+
+#define TGFX_THUMB 0x02
+#define TGFX_THUMB2 0x04
+#define TGFX_TOP 0x01
+#define TGFX_TOP2 0x08
+
+static int tgfx_buttons[] = { BTN_TRIGGER, BTN_THUMB, BTN_THUMB2, BTN_TOP, BTN_TOP2 };
+
+static struct tgfx {
+ struct pardevice *pd;
+ struct timer_list timer;
+ struct input_dev *dev[TGFX_MAX_DEVICES];
+ char name[TGFX_MAX_DEVICES][64];
+ char phys[TGFX_MAX_DEVICES][32];
+ int sticks;
+ int used;
+ struct mutex sem;
+} *tgfx_base[TGFX_MAX_PORTS];
+
+/*
+ * tgfx_timer() reads and analyzes TurboGraFX joystick data.
+ */
+
+static void tgfx_timer(unsigned long private)
+{
+ struct tgfx *tgfx = (void *) private;
+ struct input_dev *dev;
+ int data1, data2, i;
+
+ for (i = 0; i < 7; i++)
+ if (tgfx->sticks & (1 << i)) {
+
+ dev = tgfx->dev[i];
+
+ parport_write_data(tgfx->pd->port, ~(1 << i));
+ data1 = parport_read_status(tgfx->pd->port) ^ 0x7f;
+ data2 = parport_read_control(tgfx->pd->port) ^ 0x04; /* CAVEAT parport */
+
+ input_report_abs(dev, ABS_X, !!(data1 & TGFX_RIGHT) - !!(data1 & TGFX_LEFT));
+ input_report_abs(dev, ABS_Y, !!(data1 & TGFX_DOWN ) - !!(data1 & TGFX_UP ));
+
+ input_report_key(dev, BTN_TRIGGER, (data1 & TGFX_TRIGGER));
+ input_report_key(dev, BTN_THUMB, (data2 & TGFX_THUMB ));
+ input_report_key(dev, BTN_THUMB2, (data2 & TGFX_THUMB2 ));
+ input_report_key(dev, BTN_TOP, (data2 & TGFX_TOP ));
+ input_report_key(dev, BTN_TOP2, (data2 & TGFX_TOP2 ));
+
+ input_sync(dev);
+ }
+
+ mod_timer(&tgfx->timer, jiffies + TGFX_REFRESH_TIME);
+}
+
+static int tgfx_open(struct input_dev *dev)
+{
+ struct tgfx *tgfx = input_get_drvdata(dev);
+ int err;
+
+ err = mutex_lock_interruptible(&tgfx->sem);
+ if (err)
+ return err;
+
+ if (!tgfx->used++) {
+ parport_claim(tgfx->pd);
+ parport_write_control(tgfx->pd->port, 0x04);
+ mod_timer(&tgfx->timer, jiffies + TGFX_REFRESH_TIME);
+ }
+
+ mutex_unlock(&tgfx->sem);
+ return 0;
+}
+
+static void tgfx_close(struct input_dev *dev)
+{
+ struct tgfx *tgfx = input_get_drvdata(dev);
+
+ mutex_lock(&tgfx->sem);
+ if (!--tgfx->used) {
+ del_timer_sync(&tgfx->timer);
+ parport_write_control(tgfx->pd->port, 0x00);
+ parport_release(tgfx->pd);
+ }
+ mutex_unlock(&tgfx->sem);
+}
+
+
+
+/*
+ * tgfx_probe() probes for tg gamepads.
+ */
+
+static struct tgfx __init *tgfx_probe(int parport, int *n_buttons, int n_devs)
+{
+ struct tgfx *tgfx;
+ struct input_dev *input_dev;
+ struct parport *pp;
+ struct pardevice *pd;
+ int i, j;
+ int err;
+
+ pp = parport_find_number(parport);
+ if (!pp) {
+ printk(KERN_ERR "turbografx.c: no such parport\n");
+ err = -EINVAL;
+ goto err_out;
+ }
+
+ pd = parport_register_device(pp, "turbografx", NULL, NULL, NULL, PARPORT_DEV_EXCL, NULL);
+ if (!pd) {
+ printk(KERN_ERR "turbografx.c: parport busy already - lp.o loaded?\n");
+ err = -EBUSY;
+ goto err_put_pp;
+ }
+
+ tgfx = kzalloc(sizeof(struct tgfx), GFP_KERNEL);
+ if (!tgfx) {
+ printk(KERN_ERR "turbografx.c: Not enough memory\n");
+ err = -ENOMEM;
+ goto err_unreg_pardev;
+ }
+
+ mutex_init(&tgfx->sem);
+ tgfx->pd = pd;
+ init_timer(&tgfx->timer);
+ tgfx->timer.data = (long) tgfx;
+ tgfx->timer.function = tgfx_timer;
+
+ for (i = 0; i < n_devs; i++) {
+ if (n_buttons[i] < 1)
+ continue;
+
+ if (n_buttons[i] > 6) {
+ printk(KERN_ERR "turbografx.c: Invalid number of buttons %d\n", n_buttons[i]);
+ err = -EINVAL;
+ goto err_unreg_devs;
+ }
+
+ tgfx->dev[i] = input_dev = input_allocate_device();
+ if (!input_dev) {
+ printk(KERN_ERR "turbografx.c: Not enough memory for input device\n");
+ err = -ENOMEM;
+ goto err_unreg_devs;
+ }
+
+ tgfx->sticks |= (1 << i);
+ snprintf(tgfx->name[i], sizeof(tgfx->name[i]),
+ "TurboGraFX %d-button Multisystem joystick", n_buttons[i]);
+ snprintf(tgfx->phys[i], sizeof(tgfx->phys[i]),
+ "%s/input%d", tgfx->pd->port->name, i);
+
+ input_dev->name = tgfx->name[i];
+ input_dev->phys = tgfx->phys[i];
+ input_dev->id.bustype = BUS_PARPORT;
+ input_dev->id.vendor = 0x0003;
+ input_dev->id.product = n_buttons[i];
+ input_dev->id.version = 0x0100;
+
+ input_set_drvdata(input_dev, tgfx);
+
+ input_dev->open = tgfx_open;
+ input_dev->close = tgfx_close;
+
+ input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
+ input_set_abs_params(input_dev, ABS_X, -1, 1, 0, 0);
+ input_set_abs_params(input_dev, ABS_Y, -1, 1, 0, 0);
+
+ for (j = 0; j < n_buttons[i]; j++)
+ set_bit(tgfx_buttons[j], input_dev->keybit);
+
+ err = input_register_device(tgfx->dev[i]);
+ if (err)
+ goto err_free_dev;
+ }
+
+ if (!tgfx->sticks) {
+ printk(KERN_ERR "turbografx.c: No valid devices specified\n");
+ err = -EINVAL;
+ goto err_free_tgfx;
+ }
+
+ parport_put_port(pp);
+ return tgfx;
+
+ err_free_dev:
+ input_free_device(tgfx->dev[i]);
+ err_unreg_devs:
+ while (--i >= 0)
+ if (tgfx->dev[i])
+ input_unregister_device(tgfx->dev[i]);
+ err_free_tgfx:
+ kfree(tgfx);
+ err_unreg_pardev:
+ parport_unregister_device(pd);
+ err_put_pp:
+ parport_put_port(pp);
+ err_out:
+ return ERR_PTR(err);
+}
+
+static void tgfx_remove(struct tgfx *tgfx)
+{
+ int i;
+
+ for (i = 0; i < TGFX_MAX_DEVICES; i++)
+ if (tgfx->dev[i])
+ input_unregister_device(tgfx->dev[i]);
+ parport_unregister_device(tgfx->pd);
+ kfree(tgfx);
+}
+
+static int __init tgfx_init(void)
+{
+ int i;
+ int have_dev = 0;
+ int err = 0;
+
+ for (i = 0; i < TGFX_MAX_PORTS; i++) {
+ if (tgfx_cfg[i].nargs == 0 || tgfx_cfg[i].args[0] < 0)
+ continue;
+
+ if (tgfx_cfg[i].nargs < 2) {
+ printk(KERN_ERR "turbografx.c: at least one joystick must be specified\n");
+ err = -EINVAL;
+ break;
+ }
+
+ tgfx_base[i] = tgfx_probe(tgfx_cfg[i].args[0],
+ tgfx_cfg[i].args + 1,
+ tgfx_cfg[i].nargs - 1);
+ if (IS_ERR(tgfx_base[i])) {
+ err = PTR_ERR(tgfx_base[i]);
+ break;
+ }
+
+ have_dev = 1;
+ }
+
+ if (err) {
+ while (--i >= 0)
+ if (tgfx_base[i])
+ tgfx_remove(tgfx_base[i]);
+ return err;
+ }
+
+ return have_dev ? 0 : -ENODEV;
+}
+
+static void __exit tgfx_exit(void)
+{
+ int i;
+
+ for (i = 0; i < TGFX_MAX_PORTS; i++)
+ if (tgfx_base[i])
+ tgfx_remove(tgfx_base[i]);
+}
+
+module_init(tgfx_init);
+module_exit(tgfx_exit);
diff --git a/drivers/input/joystick/twidjoy.c b/drivers/input/joystick/twidjoy.c
new file mode 100644
index 0000000..3f4ec73
--- /dev/null
+++ b/drivers/input/joystick/twidjoy.c
@@ -0,0 +1,275 @@
+/*
+ * Copyright (c) 2001 Arndt Schoenewald
+ * Copyright (c) 2000-2001 Vojtech Pavlik
+ * Copyright (c) 2000 Mark Fletcher
+ *
+ * Sponsored by Quelltext AG (http://www.quelltext-ag.de), Dortmund, Germany
+ */
+
+/*
+ * Driver to use Handykey's Twiddler (the first edition, i.e. the one with
+ * the RS232 interface) as a joystick under Linux
+ *
+ * The Twiddler is a one-handed chording keyboard featuring twelve buttons on
+ * the front, six buttons on the top, and a built-in tilt sensor. The buttons
+ * on the front, which are grouped as four rows of three buttons, are pressed
+ * by the four fingers (this implies only one button per row can be held down
+ * at the same time) and the buttons on the top are for the thumb. The tilt
+ * sensor delivers X and Y axis data depending on how the Twiddler is held.
+ * Additional information can be found at http://www.handykey.com.
+ *
+ * This driver does not use the Twiddler for its intended purpose, i.e. as
+ * a chording keyboard, but as a joystick: pressing and releasing a button
+ * immediately sends a corresponding button event, and tilting it generates
+ * corresponding ABS_X and ABS_Y events. This turns the Twiddler into a game
+ * controller with amazing 18 buttons :-)
+ *
+ * Note: The Twiddler2 (the successor of the Twiddler that connects directly
+ * to the PS/2 keyboard and mouse ports) is NOT supported by this driver!
+ *
+ * For questions or feedback regarding this driver module please contact:
+ * Arndt Schoenewald <arndt@quelltext.com>
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/input.h>
+#include <linux/serio.h>
+#include <linux/init.h>
+
+#define DRIVER_DESC "Handykey Twiddler keyboard as a joystick driver"
+
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+/*
+ * Constants.
+ */
+
+#define TWIDJOY_MAX_LENGTH 5
+
+static struct twidjoy_button_spec {
+ int bitshift;
+ int bitmask;
+ int buttons[3];
+}
+twidjoy_buttons[] = {
+ { 0, 3, { BTN_A, BTN_B, BTN_C } },
+ { 2, 3, { BTN_X, BTN_Y, BTN_Z } },
+ { 4, 3, { BTN_TL, BTN_TR, BTN_TR2 } },
+ { 6, 3, { BTN_SELECT, BTN_START, BTN_MODE } },
+ { 8, 1, { BTN_BASE5 } },
+ { 9, 1, { BTN_BASE } },
+ { 10, 1, { BTN_BASE3 } },
+ { 11, 1, { BTN_BASE4 } },
+ { 12, 1, { BTN_BASE2 } },
+ { 13, 1, { BTN_BASE6 } },
+ { 0, 0, { 0 } }
+};
+
+/*
+ * Per-Twiddler data.
+ */
+
+struct twidjoy {
+ struct input_dev *dev;
+ int idx;
+ unsigned char data[TWIDJOY_MAX_LENGTH];
+ char phys[32];
+};
+
+/*
+ * twidjoy_process_packet() decodes packets the driver receives from the
+ * Twiddler. It updates the data accordingly.
+ */
+
+static void twidjoy_process_packet(struct twidjoy *twidjoy)
+{
+ struct input_dev *dev = twidjoy->dev;
+ unsigned char *data = twidjoy->data;
+ struct twidjoy_button_spec *bp;
+ int button_bits, abs_x, abs_y;
+
+ button_bits = ((data[1] & 0x7f) << 7) | (data[0] & 0x7f);
+
+ for (bp = twidjoy_buttons; bp->bitmask; bp++) {
+ int value = (button_bits & (bp->bitmask << bp->bitshift)) >> bp->bitshift;
+ int i;
+
+ for (i = 0; i < bp->bitmask; i++)
+ input_report_key(dev, bp->buttons[i], i+1 == value);
+ }
+
+ abs_x = ((data[4] & 0x07) << 5) | ((data[3] & 0x7C) >> 2);
+ if (data[4] & 0x08) abs_x -= 256;
+
+ abs_y = ((data[3] & 0x01) << 7) | ((data[2] & 0x7F) >> 0);
+ if (data[3] & 0x02) abs_y -= 256;
+
+ input_report_abs(dev, ABS_X, -abs_x);
+ input_report_abs(dev, ABS_Y, +abs_y);
+
+ input_sync(dev);
+}
+
+/*
+ * twidjoy_interrupt() is called by the low level driver when characters
+ * are ready for us. We then buffer them for further processing, or call the
+ * packet processing routine.
+ */
+
+static irqreturn_t twidjoy_interrupt(struct serio *serio, unsigned char data, unsigned int flags)
+{
+ struct twidjoy *twidjoy = serio_get_drvdata(serio);
+
+ /* All Twiddler packets are 5 bytes. The fact that the first byte
+ * has a MSB of 0 and all other bytes have a MSB of 1 can be used
+ * to check and regain sync. */
+
+ if ((data & 0x80) == 0)
+ twidjoy->idx = 0; /* this byte starts a new packet */
+ else if (twidjoy->idx == 0)
+ return IRQ_HANDLED; /* wrong MSB -- ignore this byte */
+
+ if (twidjoy->idx < TWIDJOY_MAX_LENGTH)
+ twidjoy->data[twidjoy->idx++] = data;
+
+ if (twidjoy->idx == TWIDJOY_MAX_LENGTH) {
+ twidjoy_process_packet(twidjoy);
+ twidjoy->idx = 0;
+ }
+
+ return IRQ_HANDLED;
+}
+
+/*
+ * twidjoy_disconnect() is the opposite of twidjoy_connect()
+ */
+
+static void twidjoy_disconnect(struct serio *serio)
+{
+ struct twidjoy *twidjoy = serio_get_drvdata(serio);
+
+ serio_close(serio);
+ serio_set_drvdata(serio, NULL);
+ input_unregister_device(twidjoy->dev);
+ kfree(twidjoy);
+}
+
+/*
+ * twidjoy_connect() is the routine that is called when someone adds a
+ * new serio device. It looks for the Twiddler, and if found, registers
+ * it as an input device.
+ */
+
+static int twidjoy_connect(struct serio *serio, struct serio_driver *drv)
+{
+ struct twidjoy_button_spec *bp;
+ struct twidjoy *twidjoy;
+ struct input_dev *input_dev;
+ int err = -ENOMEM;
+ int i;
+
+ twidjoy = kzalloc(sizeof(struct twidjoy), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!twidjoy || !input_dev)
+ goto fail1;
+
+ twidjoy->dev = input_dev;
+ snprintf(twidjoy->phys, sizeof(twidjoy->phys), "%s/input0", serio->phys);
+
+ input_dev->name = "Handykey Twiddler";
+ input_dev->phys = twidjoy->phys;
+ input_dev->id.bustype = BUS_RS232;
+ input_dev->id.vendor = SERIO_TWIDJOY;
+ input_dev->id.product = 0x0001;
+ input_dev->id.version = 0x0100;
+ input_dev->dev.parent = &serio->dev;
+
+ input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
+ input_set_abs_params(input_dev, ABS_X, -50, 50, 4, 4);
+ input_set_abs_params(input_dev, ABS_Y, -50, 50, 4, 4);
+
+ for (bp = twidjoy_buttons; bp->bitmask; bp++)
+ for (i = 0; i < bp->bitmask; i++)
+ set_bit(bp->buttons[i], input_dev->keybit);
+
+ serio_set_drvdata(serio, twidjoy);
+
+ err = serio_open(serio, drv);
+ if (err)
+ goto fail2;
+
+ err = input_register_device(twidjoy->dev);
+ if (err)
+ goto fail3;
+
+ return 0;
+
+ fail3: serio_close(serio);
+ fail2: serio_set_drvdata(serio, NULL);
+ fail1: input_free_device(input_dev);
+ kfree(twidjoy);
+ return err;
+}
+
+/*
+ * The serio driver structure.
+ */
+
+static struct serio_device_id twidjoy_serio_ids[] = {
+ {
+ .type = SERIO_RS232,
+ .proto = SERIO_TWIDJOY,
+ .id = SERIO_ANY,
+ .extra = SERIO_ANY,
+ },
+ { 0 }
+};
+
+MODULE_DEVICE_TABLE(serio, twidjoy_serio_ids);
+
+static struct serio_driver twidjoy_drv = {
+ .driver = {
+ .name = "twidjoy",
+ },
+ .description = DRIVER_DESC,
+ .id_table = twidjoy_serio_ids,
+ .interrupt = twidjoy_interrupt,
+ .connect = twidjoy_connect,
+ .disconnect = twidjoy_disconnect,
+};
+
+/*
+ * The functions for inserting/removing us as a module.
+ */
+
+static int __init twidjoy_init(void)
+{
+ return serio_register_driver(&twidjoy_drv);
+}
+
+static void __exit twidjoy_exit(void)
+{
+ serio_unregister_driver(&twidjoy_drv);
+}
+
+module_init(twidjoy_init);
+module_exit(twidjoy_exit);
diff --git a/drivers/input/joystick/walkera0701.c b/drivers/input/joystick/walkera0701.c
new file mode 100644
index 0000000..4dfa1ee
--- /dev/null
+++ b/drivers/input/joystick/walkera0701.c
@@ -0,0 +1,292 @@
+/*
+ * Parallel port to Walkera WK-0701 TX joystick
+ *
+ * Copyright (c) 2008 Peter Popovec
+ *
+ * More about driver: <file:Documentation/input/walkera0701.txt>
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+*/
+
+/* #define WK0701_DEBUG */
+
+#define RESERVE 20000
+#define SYNC_PULSE 1306000
+#define BIN0_PULSE 288000
+#define BIN1_PULSE 438000
+
+#define ANALOG_MIN_PULSE 318000
+#define ANALOG_MAX_PULSE 878000
+#define ANALOG_DELTA 80000
+
+#define BIN_SAMPLE ((BIN0_PULSE + BIN1_PULSE) / 2)
+
+#define NO_SYNC 25
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/parport.h>
+#include <linux/input.h>
+#include <linux/hrtimer.h>
+
+MODULE_AUTHOR("Peter Popovec <popovec@fei.tuke.sk>");
+MODULE_DESCRIPTION("Walkera WK-0701 TX as joystick");
+MODULE_LICENSE("GPL");
+
+static unsigned int walkera0701_pp_no;
+module_param_named(port, walkera0701_pp_no, int, 0);
+MODULE_PARM_DESC(port,
+ "Parallel port adapter for Walkera WK-0701 TX (default is 0)");
+
+/*
+ * For now, only one device is supported, if somebody need more devices, code
+ * can be expanded, one struct walkera_dev per device must be allocated and
+ * set up by walkera0701_connect (release of device by walkera0701_disconnect)
+ */
+
+struct walkera_dev {
+ unsigned char buf[25];
+ u64 irq_time, irq_lasttime;
+ int counter;
+ int ack;
+
+ struct input_dev *input_dev;
+ struct hrtimer timer;
+
+ struct parport *parport;
+ struct pardevice *pardevice;
+};
+
+static struct walkera_dev w_dev;
+
+static inline void walkera0701_parse_frame(struct walkera_dev *w)
+{
+ int i;
+ int val1, val2, val3, val4, val5, val6, val7, val8;
+ int crc1, crc2;
+
+ for (crc1 = crc2 = i = 0; i < 10; i++) {
+ crc1 += w->buf[i] & 7;
+ crc2 += (w->buf[i] & 8) >> 3;
+ }
+ if ((w->buf[10] & 7) != (crc1 & 7))
+ return;
+ if (((w->buf[10] & 8) >> 3) != (((crc1 >> 3) + crc2) & 1))
+ return;
+ for (crc1 = crc2 = 0, i = 11; i < 23; i++) {
+ crc1 += w->buf[i] & 7;
+ crc2 += (w->buf[i] & 8) >> 3;
+ }
+ if ((w->buf[23] & 7) != (crc1 & 7))
+ return;
+ if (((w->buf[23] & 8) >> 3) != (((crc1 >> 3) + crc2) & 1))
+ return;
+ val1 = ((w->buf[0] & 7) * 256 + w->buf[1] * 16 + w->buf[2]) >> 2;
+ val1 *= ((w->buf[0] >> 2) & 2) - 1; /* sign */
+ val2 = (w->buf[2] & 1) << 8 | (w->buf[3] << 4) | w->buf[4];
+ val2 *= (w->buf[2] & 2) - 1; /* sign */
+ val3 = ((w->buf[5] & 7) * 256 + w->buf[6] * 16 + w->buf[7]) >> 2;
+ val3 *= ((w->buf[5] >> 2) & 2) - 1; /* sign */
+ val4 = (w->buf[7] & 1) << 8 | (w->buf[8] << 4) | w->buf[9];
+ val4 *= (w->buf[7] & 2) - 1; /* sign */
+ val5 = ((w->buf[11] & 7) * 256 + w->buf[12] * 16 + w->buf[13]) >> 2;
+ val5 *= ((w->buf[11] >> 2) & 2) - 1; /* sign */
+ val6 = (w->buf[13] & 1) << 8 | (w->buf[14] << 4) | w->buf[15];
+ val6 *= (w->buf[13] & 2) - 1; /* sign */
+ val7 = ((w->buf[16] & 7) * 256 + w->buf[17] * 16 + w->buf[18]) >> 2;
+ val7 *= ((w->buf[16] >> 2) & 2) - 1; /*sign */
+ val8 = (w->buf[18] & 1) << 8 | (w->buf[19] << 4) | w->buf[20];
+ val8 *= (w->buf[18] & 2) - 1; /*sign */
+
+#ifdef WK0701_DEBUG
+ {
+ int magic, magic_bit;
+ magic = (w->buf[21] << 4) | w->buf[22];
+ magic_bit = (w->buf[24] & 8) >> 3;
+ printk(KERN_DEBUG
+ "walkera0701: %4d %4d %4d %4d %4d %4d %4d %4d (magic %2x %d)\n",
+ val1, val2, val3, val4, val5, val6, val7, val8, magic,
+ magic_bit);
+ }
+#endif
+ input_report_abs(w->input_dev, ABS_X, val2);
+ input_report_abs(w->input_dev, ABS_Y, val1);
+ input_report_abs(w->input_dev, ABS_Z, val6);
+ input_report_abs(w->input_dev, ABS_THROTTLE, val3);
+ input_report_abs(w->input_dev, ABS_RUDDER, val4);
+ input_report_abs(w->input_dev, ABS_MISC, val7);
+ input_report_key(w->input_dev, BTN_GEAR_DOWN, val5 > 0);
+}
+
+static inline int read_ack(struct pardevice *p)
+{
+ return parport_read_status(p->port) & 0x40;
+}
+
+/* falling edge, prepare to BIN value calculation */
+static void walkera0701_irq_handler(void *handler_data)
+{
+ u64 pulse_time;
+ struct walkera_dev *w = handler_data;
+
+ w->irq_time = ktime_to_ns(ktime_get());
+ pulse_time = w->irq_time - w->irq_lasttime;
+ w->irq_lasttime = w->irq_time;
+
+ /* cancel timer, if in handler or active do resync */
+ if (unlikely(0 != hrtimer_try_to_cancel(&w->timer))) {
+ w->counter = NO_SYNC;
+ return;
+ }
+
+ if (w->counter < NO_SYNC) {
+ if (w->ack) {
+ pulse_time -= BIN1_PULSE;
+ w->buf[w->counter] = 8;
+ } else {
+ pulse_time -= BIN0_PULSE;
+ w->buf[w->counter] = 0;
+ }
+ if (w->counter == 24) { /* full frame */
+ walkera0701_parse_frame(w);
+ w->counter = NO_SYNC;
+ if (abs(pulse_time - SYNC_PULSE) < RESERVE) /* new frame sync */
+ w->counter = 0;
+ } else {
+ if ((pulse_time > (ANALOG_MIN_PULSE - RESERVE)
+ && (pulse_time < (ANALOG_MAX_PULSE + RESERVE)))) {
+ pulse_time -= (ANALOG_MIN_PULSE - RESERVE);
+ pulse_time = (u32) pulse_time / ANALOG_DELTA; /* overtiping is safe, pulsetime < s32.. */
+ w->buf[w->counter++] |= (pulse_time & 7);
+ } else
+ w->counter = NO_SYNC;
+ }
+ } else if (abs(pulse_time - SYNC_PULSE - BIN0_PULSE) <
+ RESERVE + BIN1_PULSE - BIN0_PULSE) /* frame sync .. */
+ w->counter = 0;
+
+ hrtimer_start(&w->timer, ktime_set(0, BIN_SAMPLE), HRTIMER_MODE_REL);
+}
+
+static enum hrtimer_restart timer_handler(struct hrtimer
+ *handle)
+{
+ struct walkera_dev *w;
+
+ w = container_of(handle, struct walkera_dev, timer);
+ w->ack = read_ack(w->pardevice);
+
+ return HRTIMER_NORESTART;
+}
+
+static int walkera0701_open(struct input_dev *dev)
+{
+ struct walkera_dev *w = input_get_drvdata(dev);
+
+ parport_enable_irq(w->parport);
+ return 0;
+}
+
+static void walkera0701_close(struct input_dev *dev)
+{
+ struct walkera_dev *w = input_get_drvdata(dev);
+
+ parport_disable_irq(w->parport);
+}
+
+static int walkera0701_connect(struct walkera_dev *w, int parport)
+{
+ int err = -ENODEV;
+
+ w->parport = parport_find_number(parport);
+ if (w->parport == NULL)
+ return -ENODEV;
+
+ if (w->parport->irq == -1) {
+ printk(KERN_ERR "walkera0701: parport without interrupt\n");
+ goto init_err;
+ }
+
+ err = -EBUSY;
+ w->pardevice = parport_register_device(w->parport, "walkera0701",
+ NULL, NULL, walkera0701_irq_handler,
+ PARPORT_DEV_EXCL, w);
+ if (!w->pardevice)
+ goto init_err;
+
+ if (parport_negotiate(w->pardevice->port, IEEE1284_MODE_COMPAT))
+ goto init_err1;
+
+ if (parport_claim(w->pardevice))
+ goto init_err1;
+
+ w->input_dev = input_allocate_device();
+ if (!w->input_dev)
+ goto init_err2;
+
+ input_set_drvdata(w->input_dev, w);
+ w->input_dev->name = "Walkera WK-0701 TX";
+ w->input_dev->phys = w->parport->name;
+ w->input_dev->id.bustype = BUS_PARPORT;
+
+ /* TODO what id vendor/product/version ? */
+ w->input_dev->id.vendor = 0x0001;
+ w->input_dev->id.product = 0x0001;
+ w->input_dev->id.version = 0x0100;
+ w->input_dev->open = walkera0701_open;
+ w->input_dev->close = walkera0701_close;
+
+ w->input_dev->evbit[0] = BIT(EV_ABS) | BIT_MASK(EV_KEY);
+ w->input_dev->keybit[BIT_WORD(BTN_GEAR_DOWN)] = BIT_MASK(BTN_GEAR_DOWN);
+
+ input_set_abs_params(w->input_dev, ABS_X, -512, 512, 0, 0);
+ input_set_abs_params(w->input_dev, ABS_Y, -512, 512, 0, 0);
+ input_set_abs_params(w->input_dev, ABS_Z, -512, 512, 0, 0);
+ input_set_abs_params(w->input_dev, ABS_THROTTLE, -512, 512, 0, 0);
+ input_set_abs_params(w->input_dev, ABS_RUDDER, -512, 512, 0, 0);
+ input_set_abs_params(w->input_dev, ABS_MISC, -512, 512, 0, 0);
+
+ err = input_register_device(w->input_dev);
+ if (err)
+ goto init_err3;
+
+ hrtimer_init(&w->timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
+ w->timer.function = timer_handler;
+ return 0;
+
+ init_err3:
+ input_free_device(w->input_dev);
+ init_err2:
+ parport_release(w->pardevice);
+ init_err1:
+ parport_unregister_device(w->pardevice);
+ init_err:
+ parport_put_port(w->parport);
+ return err;
+}
+
+static void walkera0701_disconnect(struct walkera_dev *w)
+{
+ hrtimer_cancel(&w->timer);
+ input_unregister_device(w->input_dev);
+ parport_release(w->pardevice);
+ parport_unregister_device(w->pardevice);
+ parport_put_port(w->parport);
+}
+
+static int __init walkera0701_init(void)
+{
+ return walkera0701_connect(&w_dev, walkera0701_pp_no);
+}
+
+static void __exit walkera0701_exit(void)
+{
+ walkera0701_disconnect(&w_dev);
+}
+
+module_init(walkera0701_init);
+module_exit(walkera0701_exit);
diff --git a/drivers/input/joystick/warrior.c b/drivers/input/joystick/warrior.c
new file mode 100644
index 0000000..f72c83e
--- /dev/null
+++ b/drivers/input/joystick/warrior.c
@@ -0,0 +1,235 @@
+/*
+ * Copyright (c) 1999-2001 Vojtech Pavlik
+ */
+
+/*
+ * Logitech WingMan Warrior joystick driver for Linux
+ */
+
+/*
+ * This program is free warftware; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * Should you need to contact me, the author, you can do so either by
+ * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
+ * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/input.h>
+#include <linux/serio.h>
+#include <linux/init.h>
+
+#define DRIVER_DESC "Logitech WingMan Warrior joystick driver"
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+/*
+ * Constants.
+ */
+
+#define WARRIOR_MAX_LENGTH 16
+static char warrior_lengths[] = { 0, 4, 12, 3, 4, 4, 0, 0 };
+
+/*
+ * Per-Warrior data.
+ */
+
+struct warrior {
+ struct input_dev *dev;
+ int idx, len;
+ unsigned char data[WARRIOR_MAX_LENGTH];
+ char phys[32];
+};
+
+/*
+ * warrior_process_packet() decodes packets the driver receives from the
+ * Warrior. It updates the data accordingly.
+ */
+
+static void warrior_process_packet(struct warrior *warrior)
+{
+ struct input_dev *dev = warrior->dev;
+ unsigned char *data = warrior->data;
+
+ if (!warrior->idx) return;
+
+ switch ((data[0] >> 4) & 7) {
+ case 1: /* Button data */
+ input_report_key(dev, BTN_TRIGGER, data[3] & 1);
+ input_report_key(dev, BTN_THUMB, (data[3] >> 1) & 1);
+ input_report_key(dev, BTN_TOP, (data[3] >> 2) & 1);
+ input_report_key(dev, BTN_TOP2, (data[3] >> 3) & 1);
+ break;
+ case 3: /* XY-axis info->data */
+ input_report_abs(dev, ABS_X, ((data[0] & 8) << 5) - (data[2] | ((data[0] & 4) << 5)));
+ input_report_abs(dev, ABS_Y, (data[1] | ((data[0] & 1) << 7)) - ((data[0] & 2) << 7));
+ break;
+ case 5: /* Throttle, spinner, hat info->data */
+ input_report_abs(dev, ABS_THROTTLE, (data[1] | ((data[0] & 1) << 7)) - ((data[0] & 2) << 7));
+ input_report_abs(dev, ABS_HAT0X, (data[3] & 2 ? 1 : 0) - (data[3] & 1 ? 1 : 0));
+ input_report_abs(dev, ABS_HAT0Y, (data[3] & 8 ? 1 : 0) - (data[3] & 4 ? 1 : 0));
+ input_report_rel(dev, REL_DIAL, (data[2] | ((data[0] & 4) << 5)) - ((data[0] & 8) << 5));
+ break;
+ }
+ input_sync(dev);
+}
+
+/*
+ * warrior_interrupt() is called by the low level driver when characters
+ * are ready for us. We then buffer them for further processing, or call the
+ * packet processing routine.
+ */
+
+static irqreturn_t warrior_interrupt(struct serio *serio,
+ unsigned char data, unsigned int flags)
+{
+ struct warrior *warrior = serio_get_drvdata(serio);
+
+ if (data & 0x80) {
+ if (warrior->idx) warrior_process_packet(warrior);
+ warrior->idx = 0;
+ warrior->len = warrior_lengths[(data >> 4) & 7];
+ }
+
+ if (warrior->idx < warrior->len)
+ warrior->data[warrior->idx++] = data;
+
+ if (warrior->idx == warrior->len) {
+ if (warrior->idx) warrior_process_packet(warrior);
+ warrior->idx = 0;
+ warrior->len = 0;
+ }
+ return IRQ_HANDLED;
+}
+
+/*
+ * warrior_disconnect() is the opposite of warrior_connect()
+ */
+
+static void warrior_disconnect(struct serio *serio)
+{
+ struct warrior *warrior = serio_get_drvdata(serio);
+
+ serio_close(serio);
+ serio_set_drvdata(serio, NULL);
+ input_unregister_device(warrior->dev);
+ kfree(warrior);
+}
+
+/*
+ * warrior_connect() is the routine that is called when someone adds a
+ * new serio device. It looks for the Warrior, and if found, registers
+ * it as an input device.
+ */
+
+static int warrior_connect(struct serio *serio, struct serio_driver *drv)
+{
+ struct warrior *warrior;
+ struct input_dev *input_dev;
+ int err = -ENOMEM;
+
+ warrior = kzalloc(sizeof(struct warrior), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!warrior || !input_dev)
+ goto fail1;
+
+ warrior->dev = input_dev;
+ snprintf(warrior->phys, sizeof(warrior->phys), "%s/input0", serio->phys);
+
+ input_dev->name = "Logitech WingMan Warrior";
+ input_dev->phys = warrior->phys;
+ input_dev->id.bustype = BUS_RS232;
+ input_dev->id.vendor = SERIO_WARRIOR;
+ input_dev->id.product = 0x0001;
+ input_dev->id.version = 0x0100;
+ input_dev->dev.parent = &serio->dev;
+
+ input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL) |
+ BIT_MASK(EV_ABS);
+ input_dev->keybit[BIT_WORD(BTN_TRIGGER)] = BIT_MASK(BTN_TRIGGER) |
+ BIT_MASK(BTN_THUMB) | BIT_MASK(BTN_TOP) | BIT_MASK(BTN_TOP2);
+ input_dev->relbit[0] = BIT_MASK(REL_DIAL);
+ input_set_abs_params(input_dev, ABS_X, -64, 64, 0, 8);
+ input_set_abs_params(input_dev, ABS_Y, -64, 64, 0, 8);
+ input_set_abs_params(input_dev, ABS_THROTTLE, -112, 112, 0, 0);
+ input_set_abs_params(input_dev, ABS_HAT0X, -1, 1, 0, 0);
+ input_set_abs_params(input_dev, ABS_HAT0Y, -1, 1, 0, 0);
+
+ serio_set_drvdata(serio, warrior);
+
+ err = serio_open(serio, drv);
+ if (err)
+ goto fail2;
+
+ err = input_register_device(warrior->dev);
+ if (err)
+ goto fail3;
+
+ return 0;
+
+ fail3: serio_close(serio);
+ fail2: serio_set_drvdata(serio, NULL);
+ fail1: input_free_device(input_dev);
+ kfree(warrior);
+ return err;
+}
+
+/*
+ * The serio driver structure.
+ */
+
+static struct serio_device_id warrior_serio_ids[] = {
+ {
+ .type = SERIO_RS232,
+ .proto = SERIO_WARRIOR,
+ .id = SERIO_ANY,
+ .extra = SERIO_ANY,
+ },
+ { 0 }
+};
+
+MODULE_DEVICE_TABLE(serio, warrior_serio_ids);
+
+static struct serio_driver warrior_drv = {
+ .driver = {
+ .name = "warrior",
+ },
+ .description = DRIVER_DESC,
+ .id_table = warrior_serio_ids,
+ .interrupt = warrior_interrupt,
+ .connect = warrior_connect,
+ .disconnect = warrior_disconnect,
+};
+
+/*
+ * The functions for inserting/removing us as a module.
+ */
+
+static int __init warrior_init(void)
+{
+ return serio_register_driver(&warrior_drv);
+}
+
+static void __exit warrior_exit(void)
+{
+ serio_unregister_driver(&warrior_drv);
+}
+
+module_init(warrior_init);
+module_exit(warrior_exit);
diff --git a/drivers/input/joystick/xpad.c b/drivers/input/joystick/xpad.c
new file mode 100644
index 0000000..2189cbf
--- /dev/null
+++ b/drivers/input/joystick/xpad.c
@@ -0,0 +1,1063 @@
+/*
+ * X-Box gamepad driver
+ *
+ * Copyright (c) 2002 Marko Friedemann <mfr@bmx-chemnitz.de>
+ * 2004 Oliver Schwartz <Oliver.Schwartz@gmx.de>,
+ * Steven Toth <steve@toth.demon.co.uk>,
+ * Franz Lehner <franz@caos.at>,
+ * Ivan Hawkes <blackhawk@ivanhawkes.com>
+ * 2005 Dominic Cerquetti <binary1230@yahoo.com>
+ * 2006 Adam Buchbinder <adam.buchbinder@gmail.com>
+ * 2007 Jan Kratochvil <honza@jikos.cz>
+ * 2010 Christoph Fritz <chf.fritz@googlemail.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ *
+ * This driver is based on:
+ * - information from http://euc.jp/periphs/xbox-controller.ja.html
+ * - the iForce driver drivers/char/joystick/iforce.c
+ * - the skeleton-driver drivers/usb/usb-skeleton.c
+ * - Xbox 360 information http://www.free60.org/wiki/Gamepad
+ *
+ * Thanks to:
+ * - ITO Takayuki for providing essential xpad information on his website
+ * - Vojtech Pavlik - iforce driver / input subsystem
+ * - Greg Kroah-Hartman - usb-skeleton driver
+ * - XBOX Linux project - extra USB id's
+ *
+ * TODO:
+ * - fine tune axes (especially trigger axes)
+ * - fix "analog" buttons (reported as digital now)
+ * - get rumble working
+ * - need USB IDs for other dance pads
+ *
+ * History:
+ *
+ * 2002-06-27 - 0.0.1 : first version, just said "XBOX HID controller"
+ *
+ * 2002-07-02 - 0.0.2 : basic working version
+ * - all axes and 9 of the 10 buttons work (german InterAct device)
+ * - the black button does not work
+ *
+ * 2002-07-14 - 0.0.3 : rework by Vojtech Pavlik
+ * - indentation fixes
+ * - usb + input init sequence fixes
+ *
+ * 2002-07-16 - 0.0.4 : minor changes, merge with Vojtech's v0.0.3
+ * - verified the lack of HID and report descriptors
+ * - verified that ALL buttons WORK
+ * - fixed d-pad to axes mapping
+ *
+ * 2002-07-17 - 0.0.5 : simplified d-pad handling
+ *
+ * 2004-10-02 - 0.0.6 : DDR pad support
+ * - borrowed from the XBOX linux kernel
+ * - USB id's for commonly used dance pads are present
+ * - dance pads will map D-PAD to buttons, not axes
+ * - pass the module paramater 'dpad_to_buttons' to force
+ * the D-PAD to map to buttons if your pad is not detected
+ *
+ * Later changes can be tracked in SCM.
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/stat.h>
+#include <linux/module.h>
+#include <linux/usb/input.h>
+
+#define DRIVER_AUTHOR "Marko Friedemann <mfr@bmx-chemnitz.de>"
+#define DRIVER_DESC "X-Box pad driver"
+
+#define XPAD_PKT_LEN 32
+
+/* xbox d-pads should map to buttons, as is required for DDR pads
+ but we map them to axes when possible to simplify things */
+#define MAP_DPAD_TO_BUTTONS (1 << 0)
+#define MAP_TRIGGERS_TO_BUTTONS (1 << 1)
+#define MAP_STICKS_TO_NULL (1 << 2)
+#define DANCEPAD_MAP_CONFIG (MAP_DPAD_TO_BUTTONS | \
+ MAP_TRIGGERS_TO_BUTTONS | MAP_STICKS_TO_NULL)
+
+#define XTYPE_XBOX 0
+#define XTYPE_XBOX360 1
+#define XTYPE_XBOX360W 2
+#define XTYPE_UNKNOWN 3
+
+static int dpad_to_buttons;
+module_param(dpad_to_buttons, bool, S_IRUGO);
+MODULE_PARM_DESC(dpad_to_buttons, "Map D-PAD to buttons rather than axes for unknown pads");
+
+static int triggers_to_buttons;
+module_param(triggers_to_buttons, bool, S_IRUGO);
+MODULE_PARM_DESC(triggers_to_buttons, "Map triggers to buttons rather than axes for unknown pads");
+
+static int sticks_to_null;
+module_param(sticks_to_null, bool, S_IRUGO);
+MODULE_PARM_DESC(sticks_to_null, "Do not map sticks at all for unknown pads");
+
+static const struct xpad_device {
+ u16 idVendor;
+ u16 idProduct;
+ char *name;
+ u8 mapping;
+ u8 xtype;
+} xpad_device[] = {
+ { 0x045e, 0x0202, "Microsoft X-Box pad v1 (US)", 0, XTYPE_XBOX },
+ { 0x045e, 0x0289, "Microsoft X-Box pad v2 (US)", 0, XTYPE_XBOX },
+ { 0x045e, 0x0285, "Microsoft X-Box pad (Japan)", 0, XTYPE_XBOX },
+ { 0x045e, 0x0287, "Microsoft Xbox Controller S", 0, XTYPE_XBOX },
+ { 0x045e, 0x0719, "Xbox 360 Wireless Receiver", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX360W },
+ { 0x0c12, 0x8809, "RedOctane Xbox Dance Pad", DANCEPAD_MAP_CONFIG, XTYPE_XBOX },
+ { 0x044f, 0x0f07, "Thrustmaster, Inc. Controller", 0, XTYPE_XBOX },
+ { 0x046d, 0xc242, "Logitech Chillstream Controller", 0, XTYPE_XBOX360 },
+ { 0x046d, 0xca84, "Logitech Xbox Cordless Controller", 0, XTYPE_XBOX },
+ { 0x046d, 0xca88, "Logitech Compact Controller for Xbox", 0, XTYPE_XBOX },
+ { 0x05fd, 0x1007, "Mad Catz Controller (unverified)", 0, XTYPE_XBOX },
+ { 0x05fd, 0x107a, "InterAct 'PowerPad Pro' X-Box pad (Germany)", 0, XTYPE_XBOX },
+ { 0x0738, 0x4516, "Mad Catz Control Pad", 0, XTYPE_XBOX },
+ { 0x0738, 0x4522, "Mad Catz LumiCON", 0, XTYPE_XBOX },
+ { 0x0738, 0x4526, "Mad Catz Control Pad Pro", 0, XTYPE_XBOX },
+ { 0x0738, 0x4536, "Mad Catz MicroCON", 0, XTYPE_XBOX },
+ { 0x0738, 0x4540, "Mad Catz Beat Pad", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX },
+ { 0x0738, 0x4556, "Mad Catz Lynx Wireless Controller", 0, XTYPE_XBOX },
+ { 0x0738, 0x4716, "Mad Catz Wired Xbox 360 Controller", 0, XTYPE_XBOX360 },
+ { 0x0738, 0x4738, "Mad Catz Wired Xbox 360 Controller (SFIV)", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
+ { 0x0738, 0x6040, "Mad Catz Beat Pad Pro", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX },
+ { 0x0c12, 0x8802, "Zeroplus Xbox Controller", 0, XTYPE_XBOX },
+ { 0x0c12, 0x880a, "Pelican Eclipse PL-2023", 0, XTYPE_XBOX },
+ { 0x0c12, 0x8810, "Zeroplus Xbox Controller", 0, XTYPE_XBOX },
+ { 0x0c12, 0x9902, "HAMA VibraX - *FAULTY HARDWARE*", 0, XTYPE_XBOX },
+ { 0x0d2f, 0x0002, "Andamiro Pump It Up pad", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX },
+ { 0x0e4c, 0x1097, "Radica Gamester Controller", 0, XTYPE_XBOX },
+ { 0x0e4c, 0x2390, "Radica Games Jtech Controller", 0, XTYPE_XBOX },
+ { 0x0e6f, 0x0003, "Logic3 Freebird wireless Controller", 0, XTYPE_XBOX },
+ { 0x0e6f, 0x0005, "Eclipse wireless Controller", 0, XTYPE_XBOX },
+ { 0x0e6f, 0x0006, "Edge wireless Controller", 0, XTYPE_XBOX },
+ { 0x0e6f, 0x0006, "Pelican 'TSZ' Wired Xbox 360 Controller", 0, XTYPE_XBOX360 },
+ { 0x0e6f, 0x0201, "Pelican PL-3601 'TSZ' Wired Xbox 360 Controller", 0, XTYPE_XBOX360 },
+ { 0x0e8f, 0x0201, "SmartJoy Frag Xpad/PS2 adaptor", 0, XTYPE_XBOX },
+ { 0x0f30, 0x0202, "Joytech Advanced Controller", 0, XTYPE_XBOX },
+ { 0x0f30, 0x8888, "BigBen XBMiniPad Controller", 0, XTYPE_XBOX },
+ { 0x102c, 0xff0c, "Joytech Wireless Advanced Controller", 0, XTYPE_XBOX },
+ { 0x12ab, 0x8809, "Xbox DDR dancepad", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX },
+ { 0x12ab, 0x0004, "Honey Bee Xbox360 dancepad", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX360 },
+ { 0x0e6f, 0x0105, "HSM3 Xbox360 dancepad", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX360 },
+ { 0x1430, 0x4748, "RedOctane Guitar Hero X-plorer", 0, XTYPE_XBOX360 },
+ { 0x1430, 0x8888, "TX6500+ Dance Pad (first generation)", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX },
+ { 0x146b, 0x0601, "BigBen Interactive XBOX 360 Controller", 0, XTYPE_XBOX360 },
+ { 0x045e, 0x028e, "Microsoft X-Box 360 pad", 0, XTYPE_XBOX360 },
+ { 0x1bad, 0x0002, "Harmonix Rock Band Guitar", 0, XTYPE_XBOX360 },
+ { 0x1bad, 0x0003, "Harmonix Rock Band Drumkit", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX360 },
+ { 0x0f0d, 0x0016, "Hori Real Arcade Pro.EX", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
+ { 0x0f0d, 0x000d, "Hori Fighting Stick EX2", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
+ { 0x1689, 0xfd00, "Razer Onza Tournament Edition", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX360 },
+ { 0xffff, 0xffff, "Chinese-made Xbox Controller", 0, XTYPE_XBOX },
+ { 0x0000, 0x0000, "Generic X-Box pad", 0, XTYPE_UNKNOWN }
+};
+
+/* buttons shared with xbox and xbox360 */
+static const signed short xpad_common_btn[] = {
+ BTN_A, BTN_B, BTN_X, BTN_Y, /* "analog" buttons */
+ BTN_START, BTN_SELECT, BTN_THUMBL, BTN_THUMBR, /* start/back/sticks */
+ -1 /* terminating entry */
+};
+
+/* original xbox controllers only */
+static const signed short xpad_btn[] = {
+ BTN_C, BTN_Z, /* "analog" buttons */
+ -1 /* terminating entry */
+};
+
+/* used when dpad is mapped to buttons */
+static const signed short xpad_btn_pad[] = {
+ BTN_TRIGGER_HAPPY1, BTN_TRIGGER_HAPPY2, /* d-pad left, right */
+ BTN_TRIGGER_HAPPY3, BTN_TRIGGER_HAPPY4, /* d-pad up, down */
+ -1 /* terminating entry */
+};
+
+/* used when triggers are mapped to buttons */
+static const signed short xpad_btn_triggers[] = {
+ BTN_TL2, BTN_TR2, /* triggers left/right */
+ -1
+};
+
+
+static const signed short xpad360_btn[] = { /* buttons for x360 controller */
+ BTN_TL, BTN_TR, /* Button LB/RB */
+ BTN_MODE, /* The big X button */
+ -1
+};
+
+static const signed short xpad_abs[] = {
+ ABS_X, ABS_Y, /* left stick */
+ ABS_RX, ABS_RY, /* right stick */
+ -1 /* terminating entry */
+};
+
+/* used when dpad is mapped to axes */
+static const signed short xpad_abs_pad[] = {
+ ABS_HAT0X, ABS_HAT0Y, /* d-pad axes */
+ -1 /* terminating entry */
+};
+
+/* used when triggers are mapped to axes */
+static const signed short xpad_abs_triggers[] = {
+ ABS_Z, ABS_RZ, /* triggers left/right */
+ -1
+};
+
+/* Xbox 360 has a vendor-specific class, so we cannot match it with only
+ * USB_INTERFACE_INFO (also specifically refused by USB subsystem), so we
+ * match against vendor id as well. Wired Xbox 360 devices have protocol 1,
+ * wireless controllers have protocol 129. */
+#define XPAD_XBOX360_VENDOR_PROTOCOL(vend,pr) \
+ .match_flags = USB_DEVICE_ID_MATCH_VENDOR | USB_DEVICE_ID_MATCH_INT_INFO, \
+ .idVendor = (vend), \
+ .bInterfaceClass = USB_CLASS_VENDOR_SPEC, \
+ .bInterfaceSubClass = 93, \
+ .bInterfaceProtocol = (pr)
+#define XPAD_XBOX360_VENDOR(vend) \
+ { XPAD_XBOX360_VENDOR_PROTOCOL(vend,1) }, \
+ { XPAD_XBOX360_VENDOR_PROTOCOL(vend,129) }
+
+static struct usb_device_id xpad_table [] = {
+ { USB_INTERFACE_INFO('X', 'B', 0) }, /* X-Box USB-IF not approved class */
+ XPAD_XBOX360_VENDOR(0x045e), /* Microsoft X-Box 360 controllers */
+ XPAD_XBOX360_VENDOR(0x046d), /* Logitech X-Box 360 style controllers */
+ XPAD_XBOX360_VENDOR(0x0738), /* Mad Catz X-Box 360 controllers */
+ { USB_DEVICE(0x0738, 0x4540) }, /* Mad Catz Beat Pad */
+ XPAD_XBOX360_VENDOR(0x0e6f), /* 0x0e6f X-Box 360 controllers */
+ XPAD_XBOX360_VENDOR(0x12ab), /* X-Box 360 dance pads */
+ XPAD_XBOX360_VENDOR(0x1430), /* RedOctane X-Box 360 controllers */
+ XPAD_XBOX360_VENDOR(0x146b), /* BigBen Interactive Controllers */
+ XPAD_XBOX360_VENDOR(0x1bad), /* Harminix Rock Band Guitar and Drums */
+ XPAD_XBOX360_VENDOR(0x0f0d), /* Hori Controllers */
+ XPAD_XBOX360_VENDOR(0x1689), /* Razer Onza */
+ { }
+};
+
+MODULE_DEVICE_TABLE (usb, xpad_table);
+
+struct usb_xpad {
+ struct input_dev *dev; /* input device interface */
+ struct usb_device *udev; /* usb device */
+
+ int pad_present;
+
+ struct urb *irq_in; /* urb for interrupt in report */
+ unsigned char *idata; /* input data */
+ dma_addr_t idata_dma;
+
+ struct urb *bulk_out;
+ unsigned char *bdata;
+
+#if defined(CONFIG_JOYSTICK_XPAD_FF) || defined(CONFIG_JOYSTICK_XPAD_LEDS)
+ struct urb *irq_out; /* urb for interrupt out report */
+ unsigned char *odata; /* output data */
+ dma_addr_t odata_dma;
+ struct mutex odata_mutex;
+#endif
+
+#if defined(CONFIG_JOYSTICK_XPAD_LEDS)
+ struct xpad_led *led;
+#endif
+
+ char phys[64]; /* physical device path */
+
+ int mapping; /* map d-pad to buttons or to axes */
+ int xtype; /* type of xbox device */
+};
+
+/*
+ * xpad_process_packet
+ *
+ * Completes a request by converting the data into events for the
+ * input subsystem.
+ *
+ * The used report descriptor was taken from ITO Takayukis website:
+ * http://euc.jp/periphs/xbox-controller.ja.html
+ */
+
+static void xpad_process_packet(struct usb_xpad *xpad, u16 cmd, unsigned char *data)
+{
+ struct input_dev *dev = xpad->dev;
+
+ if (!(xpad->mapping & MAP_STICKS_TO_NULL)) {
+ /* left stick */
+ input_report_abs(dev, ABS_X,
+ (__s16) le16_to_cpup((__le16 *)(data + 12)));
+ input_report_abs(dev, ABS_Y,
+ ~(__s16) le16_to_cpup((__le16 *)(data + 14)));
+
+ /* right stick */
+ input_report_abs(dev, ABS_RX,
+ (__s16) le16_to_cpup((__le16 *)(data + 16)));
+ input_report_abs(dev, ABS_RY,
+ ~(__s16) le16_to_cpup((__le16 *)(data + 18)));
+ }
+
+ /* triggers left/right */
+ if (xpad->mapping & MAP_TRIGGERS_TO_BUTTONS) {
+ input_report_key(dev, BTN_TL2, data[10]);
+ input_report_key(dev, BTN_TR2, data[11]);
+ } else {
+ input_report_abs(dev, ABS_Z, data[10]);
+ input_report_abs(dev, ABS_RZ, data[11]);
+ }
+
+ /* digital pad */
+ if (xpad->mapping & MAP_DPAD_TO_BUTTONS) {
+ /* dpad as buttons (left, right, up, down) */
+ input_report_key(dev, BTN_TRIGGER_HAPPY1, data[2] & 0x04);
+ input_report_key(dev, BTN_TRIGGER_HAPPY2, data[2] & 0x08);
+ input_report_key(dev, BTN_TRIGGER_HAPPY3, data[2] & 0x01);
+ input_report_key(dev, BTN_TRIGGER_HAPPY4, data[2] & 0x02);
+ } else {
+ input_report_abs(dev, ABS_HAT0X,
+ !!(data[2] & 0x08) - !!(data[2] & 0x04));
+ input_report_abs(dev, ABS_HAT0Y,
+ !!(data[2] & 0x02) - !!(data[2] & 0x01));
+ }
+
+ /* start/back buttons and stick press left/right */
+ input_report_key(dev, BTN_START, data[2] & 0x10);
+ input_report_key(dev, BTN_SELECT, data[2] & 0x20);
+ input_report_key(dev, BTN_THUMBL, data[2] & 0x40);
+ input_report_key(dev, BTN_THUMBR, data[2] & 0x80);
+
+ /* "analog" buttons A, B, X, Y */
+ input_report_key(dev, BTN_A, data[4]);
+ input_report_key(dev, BTN_B, data[5]);
+ input_report_key(dev, BTN_X, data[6]);
+ input_report_key(dev, BTN_Y, data[7]);
+
+ /* "analog" buttons black, white */
+ input_report_key(dev, BTN_C, data[8]);
+ input_report_key(dev, BTN_Z, data[9]);
+
+ input_sync(dev);
+}
+
+/*
+ * xpad360_process_packet
+ *
+ * Completes a request by converting the data into events for the
+ * input subsystem. It is version for xbox 360 controller
+ *
+ * The used report descriptor was taken from:
+ * http://www.free60.org/wiki/Gamepad
+ */
+
+static void xpad360_process_packet(struct usb_xpad *xpad,
+ u16 cmd, unsigned char *data)
+{
+ struct input_dev *dev = xpad->dev;
+
+ /* digital pad */
+ if (xpad->mapping & MAP_DPAD_TO_BUTTONS) {
+ /* dpad as buttons (left, right, up, down) */
+ input_report_key(dev, BTN_TRIGGER_HAPPY1, data[2] & 0x04);
+ input_report_key(dev, BTN_TRIGGER_HAPPY2, data[2] & 0x08);
+ input_report_key(dev, BTN_TRIGGER_HAPPY3, data[2] & 0x01);
+ input_report_key(dev, BTN_TRIGGER_HAPPY4, data[2] & 0x02);
+ } else {
+ input_report_abs(dev, ABS_HAT0X,
+ !!(data[2] & 0x08) - !!(data[2] & 0x04));
+ input_report_abs(dev, ABS_HAT0Y,
+ !!(data[2] & 0x02) - !!(data[2] & 0x01));
+ }
+
+ /* start/back buttons */
+ input_report_key(dev, BTN_START, data[2] & 0x10);
+ input_report_key(dev, BTN_SELECT, data[2] & 0x20);
+
+ /* stick press left/right */
+ input_report_key(dev, BTN_THUMBL, data[2] & 0x40);
+ input_report_key(dev, BTN_THUMBR, data[2] & 0x80);
+
+ /* buttons A,B,X,Y,TL,TR and MODE */
+ input_report_key(dev, BTN_A, data[3] & 0x10);
+ input_report_key(dev, BTN_B, data[3] & 0x20);
+ input_report_key(dev, BTN_X, data[3] & 0x40);
+ input_report_key(dev, BTN_Y, data[3] & 0x80);
+ input_report_key(dev, BTN_TL, data[3] & 0x01);
+ input_report_key(dev, BTN_TR, data[3] & 0x02);
+ input_report_key(dev, BTN_MODE, data[3] & 0x04);
+
+ if (!(xpad->mapping & MAP_STICKS_TO_NULL)) {
+ /* left stick */
+ input_report_abs(dev, ABS_X,
+ (__s16) le16_to_cpup((__le16 *)(data + 6)));
+ input_report_abs(dev, ABS_Y,
+ ~(__s16) le16_to_cpup((__le16 *)(data + 8)));
+
+ /* right stick */
+ input_report_abs(dev, ABS_RX,
+ (__s16) le16_to_cpup((__le16 *)(data + 10)));
+ input_report_abs(dev, ABS_RY,
+ ~(__s16) le16_to_cpup((__le16 *)(data + 12)));
+ }
+
+ /* triggers left/right */
+ if (xpad->mapping & MAP_TRIGGERS_TO_BUTTONS) {
+ input_report_key(dev, BTN_TL2, data[4]);
+ input_report_key(dev, BTN_TR2, data[5]);
+ } else {
+ input_report_abs(dev, ABS_Z, data[4]);
+ input_report_abs(dev, ABS_RZ, data[5]);
+ }
+
+ input_sync(dev);
+}
+
+/*
+ * xpad360w_process_packet
+ *
+ * Completes a request by converting the data into events for the
+ * input subsystem. It is version for xbox 360 wireless controller.
+ *
+ * Byte.Bit
+ * 00.1 - Status change: The controller or headset has connected/disconnected
+ * Bits 01.7 and 01.6 are valid
+ * 01.7 - Controller present
+ * 01.6 - Headset present
+ * 01.1 - Pad state (Bytes 4+) valid
+ *
+ */
+
+static void xpad360w_process_packet(struct usb_xpad *xpad, u16 cmd, unsigned char *data)
+{
+ /* Presence change */
+ if (data[0] & 0x08) {
+ if (data[1] & 0x80) {
+ xpad->pad_present = 1;
+ usb_submit_urb(xpad->bulk_out, GFP_ATOMIC);
+ } else
+ xpad->pad_present = 0;
+ }
+
+ /* Valid pad data */
+ if (!(data[1] & 0x1))
+ return;
+
+ xpad360_process_packet(xpad, cmd, &data[4]);
+}
+
+static void xpad_irq_in(struct urb *urb)
+{
+ struct usb_xpad *xpad = urb->context;
+ int retval, status;
+
+ status = urb->status;
+
+ switch (status) {
+ case 0:
+ /* success */
+ break;
+ case -ECONNRESET:
+ case -ENOENT:
+ case -ESHUTDOWN:
+ /* this urb is terminated, clean up */
+ dbg("%s - urb shutting down with status: %d",
+ __func__, status);
+ return;
+ default:
+ dbg("%s - nonzero urb status received: %d",
+ __func__, status);
+ goto exit;
+ }
+
+ switch (xpad->xtype) {
+ case XTYPE_XBOX360:
+ xpad360_process_packet(xpad, 0, xpad->idata);
+ break;
+ case XTYPE_XBOX360W:
+ xpad360w_process_packet(xpad, 0, xpad->idata);
+ break;
+ default:
+ xpad_process_packet(xpad, 0, xpad->idata);
+ }
+
+exit:
+ retval = usb_submit_urb(urb, GFP_ATOMIC);
+ if (retval)
+ err ("%s - usb_submit_urb failed with result %d",
+ __func__, retval);
+}
+
+static void xpad_bulk_out(struct urb *urb)
+{
+ switch (urb->status) {
+ case 0:
+ /* success */
+ break;
+ case -ECONNRESET:
+ case -ENOENT:
+ case -ESHUTDOWN:
+ /* this urb is terminated, clean up */
+ dbg("%s - urb shutting down with status: %d", __func__, urb->status);
+ break;
+ default:
+ dbg("%s - nonzero urb status received: %d", __func__, urb->status);
+ }
+}
+
+#if defined(CONFIG_JOYSTICK_XPAD_FF) || defined(CONFIG_JOYSTICK_XPAD_LEDS)
+static void xpad_irq_out(struct urb *urb)
+{
+ int retval, status;
+
+ status = urb->status;
+
+ switch (status) {
+ case 0:
+ /* success */
+ return;
+
+ case -ECONNRESET:
+ case -ENOENT:
+ case -ESHUTDOWN:
+ /* this urb is terminated, clean up */
+ dbg("%s - urb shutting down with status: %d", __func__, status);
+ return;
+
+ default:
+ dbg("%s - nonzero urb status received: %d", __func__, status);
+ goto exit;
+ }
+
+exit:
+ retval = usb_submit_urb(urb, GFP_ATOMIC);
+ if (retval)
+ err("%s - usb_submit_urb failed with result %d",
+ __func__, retval);
+}
+
+static int xpad_init_output(struct usb_interface *intf, struct usb_xpad *xpad)
+{
+ struct usb_endpoint_descriptor *ep_irq_out;
+ int error;
+
+ if (xpad->xtype == XTYPE_UNKNOWN)
+ return 0;
+
+ xpad->odata = usb_alloc_coherent(xpad->udev, XPAD_PKT_LEN,
+ GFP_KERNEL, &xpad->odata_dma);
+ if (!xpad->odata) {
+ error = -ENOMEM;
+ goto fail1;
+ }
+
+ mutex_init(&xpad->odata_mutex);
+
+ xpad->irq_out = usb_alloc_urb(0, GFP_KERNEL);
+ if (!xpad->irq_out) {
+ error = -ENOMEM;
+ goto fail2;
+ }
+
+ ep_irq_out = &intf->cur_altsetting->endpoint[1].desc;
+ usb_fill_int_urb(xpad->irq_out, xpad->udev,
+ usb_sndintpipe(xpad->udev, ep_irq_out->bEndpointAddress),
+ xpad->odata, XPAD_PKT_LEN,
+ xpad_irq_out, xpad, ep_irq_out->bInterval);
+ xpad->irq_out->transfer_dma = xpad->odata_dma;
+ xpad->irq_out->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
+
+ return 0;
+
+ fail2: usb_free_coherent(xpad->udev, XPAD_PKT_LEN, xpad->odata, xpad->odata_dma);
+ fail1: return error;
+}
+
+static void xpad_stop_output(struct usb_xpad *xpad)
+{
+ if (xpad->xtype != XTYPE_UNKNOWN)
+ usb_kill_urb(xpad->irq_out);
+}
+
+static void xpad_deinit_output(struct usb_xpad *xpad)
+{
+ if (xpad->xtype != XTYPE_UNKNOWN) {
+ usb_free_urb(xpad->irq_out);
+ usb_free_coherent(xpad->udev, XPAD_PKT_LEN,
+ xpad->odata, xpad->odata_dma);
+ }
+}
+#else
+static int xpad_init_output(struct usb_interface *intf, struct usb_xpad *xpad) { return 0; }
+static void xpad_deinit_output(struct usb_xpad *xpad) {}
+static void xpad_stop_output(struct usb_xpad *xpad) {}
+#endif
+
+#ifdef CONFIG_JOYSTICK_XPAD_FF
+static int xpad_play_effect(struct input_dev *dev, void *data, struct ff_effect *effect)
+{
+ struct usb_xpad *xpad = input_get_drvdata(dev);
+
+ if (effect->type == FF_RUMBLE) {
+ __u16 strong = effect->u.rumble.strong_magnitude;
+ __u16 weak = effect->u.rumble.weak_magnitude;
+
+ switch (xpad->xtype) {
+
+ case XTYPE_XBOX:
+ xpad->odata[0] = 0x00;
+ xpad->odata[1] = 0x06;
+ xpad->odata[2] = 0x00;
+ xpad->odata[3] = strong / 256; /* left actuator */
+ xpad->odata[4] = 0x00;
+ xpad->odata[5] = weak / 256; /* right actuator */
+ xpad->irq_out->transfer_buffer_length = 6;
+
+ return usb_submit_urb(xpad->irq_out, GFP_ATOMIC);
+
+ case XTYPE_XBOX360:
+ xpad->odata[0] = 0x00;
+ xpad->odata[1] = 0x08;
+ xpad->odata[2] = 0x00;
+ xpad->odata[3] = strong / 256; /* left actuator? */
+ xpad->odata[4] = weak / 256; /* right actuator? */
+ xpad->odata[5] = 0x00;
+ xpad->odata[6] = 0x00;
+ xpad->odata[7] = 0x00;
+ xpad->irq_out->transfer_buffer_length = 8;
+
+ return usb_submit_urb(xpad->irq_out, GFP_ATOMIC);
+
+ case XTYPE_XBOX360W:
+ xpad->odata[0] = 0x00;
+ xpad->odata[1] = 0x01;
+ xpad->odata[2] = 0x0F;
+ xpad->odata[3] = 0xC0;
+ xpad->odata[4] = 0x00;
+ xpad->odata[5] = strong / 256;
+ xpad->odata[6] = weak / 256;
+ xpad->odata[7] = 0x00;
+ xpad->odata[8] = 0x00;
+ xpad->odata[9] = 0x00;
+ xpad->odata[10] = 0x00;
+ xpad->odata[11] = 0x00;
+ xpad->irq_out->transfer_buffer_length = 12;
+
+ return usb_submit_urb(xpad->irq_out, GFP_ATOMIC);
+
+ default:
+ dbg("%s - rumble command sent to unsupported xpad type: %d",
+ __func__, xpad->xtype);
+ return -1;
+ }
+ }
+
+ return 0;
+}
+
+static int xpad_init_ff(struct usb_xpad *xpad)
+{
+ if (xpad->xtype == XTYPE_UNKNOWN)
+ return 0;
+
+ input_set_capability(xpad->dev, EV_FF, FF_RUMBLE);
+
+ return input_ff_create_memless(xpad->dev, NULL, xpad_play_effect);
+}
+
+#else
+static int xpad_init_ff(struct usb_xpad *xpad) { return 0; }
+#endif
+
+#if defined(CONFIG_JOYSTICK_XPAD_LEDS)
+#include <linux/leds.h>
+
+struct xpad_led {
+ char name[16];
+ struct led_classdev led_cdev;
+ struct usb_xpad *xpad;
+};
+
+static void xpad_send_led_command(struct usb_xpad *xpad, int command)
+{
+ if (command >= 0 && command < 14) {
+ mutex_lock(&xpad->odata_mutex);
+ xpad->odata[0] = 0x01;
+ xpad->odata[1] = 0x03;
+ xpad->odata[2] = command;
+ xpad->irq_out->transfer_buffer_length = 3;
+ usb_submit_urb(xpad->irq_out, GFP_KERNEL);
+ mutex_unlock(&xpad->odata_mutex);
+ }
+}
+
+static void xpad_led_set(struct led_classdev *led_cdev,
+ enum led_brightness value)
+{
+ struct xpad_led *xpad_led = container_of(led_cdev,
+ struct xpad_led, led_cdev);
+
+ xpad_send_led_command(xpad_led->xpad, value);
+}
+
+static int xpad_led_probe(struct usb_xpad *xpad)
+{
+ static atomic_t led_seq = ATOMIC_INIT(0);
+ long led_no;
+ struct xpad_led *led;
+ struct led_classdev *led_cdev;
+ int error;
+
+ if (xpad->xtype != XTYPE_XBOX360)
+ return 0;
+
+ xpad->led = led = kzalloc(sizeof(struct xpad_led), GFP_KERNEL);
+ if (!led)
+ return -ENOMEM;
+
+ led_no = (long)atomic_inc_return(&led_seq) - 1;
+
+ snprintf(led->name, sizeof(led->name), "xpad%ld", led_no);
+ led->xpad = xpad;
+
+ led_cdev = &led->led_cdev;
+ led_cdev->name = led->name;
+ led_cdev->brightness_set = xpad_led_set;
+
+ error = led_classdev_register(&xpad->udev->dev, led_cdev);
+ if (error) {
+ kfree(led);
+ xpad->led = NULL;
+ return error;
+ }
+
+ /*
+ * Light up the segment corresponding to controller number
+ */
+ xpad_send_led_command(xpad, (led_no % 4) + 2);
+
+ return 0;
+}
+
+static void xpad_led_disconnect(struct usb_xpad *xpad)
+{
+ struct xpad_led *xpad_led = xpad->led;
+
+ if (xpad_led) {
+ led_classdev_unregister(&xpad_led->led_cdev);
+ kfree(xpad_led);
+ }
+}
+#else
+static int xpad_led_probe(struct usb_xpad *xpad) { return 0; }
+static void xpad_led_disconnect(struct usb_xpad *xpad) { }
+#endif
+
+
+static int xpad_open(struct input_dev *dev)
+{
+ struct usb_xpad *xpad = input_get_drvdata(dev);
+
+ /* URB was submitted in probe */
+ if(xpad->xtype == XTYPE_XBOX360W)
+ return 0;
+
+ xpad->irq_in->dev = xpad->udev;
+ if (usb_submit_urb(xpad->irq_in, GFP_KERNEL))
+ return -EIO;
+
+ return 0;
+}
+
+static void xpad_close(struct input_dev *dev)
+{
+ struct usb_xpad *xpad = input_get_drvdata(dev);
+
+ if (xpad->xtype != XTYPE_XBOX360W)
+ usb_kill_urb(xpad->irq_in);
+
+ xpad_stop_output(xpad);
+}
+
+static void xpad_set_up_abs(struct input_dev *input_dev, signed short abs)
+{
+ set_bit(abs, input_dev->absbit);
+
+ switch (abs) {
+ case ABS_X:
+ case ABS_Y:
+ case ABS_RX:
+ case ABS_RY: /* the two sticks */
+ input_set_abs_params(input_dev, abs, -32768, 32767, 16, 128);
+ break;
+ case ABS_Z:
+ case ABS_RZ: /* the triggers (if mapped to axes) */
+ input_set_abs_params(input_dev, abs, 0, 255, 0, 0);
+ break;
+ case ABS_HAT0X:
+ case ABS_HAT0Y: /* the d-pad (only if dpad is mapped to axes */
+ input_set_abs_params(input_dev, abs, -1, 1, 0, 0);
+ break;
+ }
+}
+
+static int xpad_probe(struct usb_interface *intf, const struct usb_device_id *id)
+{
+ struct usb_device *udev = interface_to_usbdev(intf);
+ struct usb_xpad *xpad;
+ struct input_dev *input_dev;
+ struct usb_endpoint_descriptor *ep_irq_in;
+ int i, error;
+
+ for (i = 0; xpad_device[i].idVendor; i++) {
+ if ((le16_to_cpu(udev->descriptor.idVendor) == xpad_device[i].idVendor) &&
+ (le16_to_cpu(udev->descriptor.idProduct) == xpad_device[i].idProduct))
+ break;
+ }
+
+ xpad = kzalloc(sizeof(struct usb_xpad), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!xpad || !input_dev) {
+ error = -ENOMEM;
+ goto fail1;
+ }
+
+ xpad->idata = usb_alloc_coherent(udev, XPAD_PKT_LEN,
+ GFP_KERNEL, &xpad->idata_dma);
+ if (!xpad->idata) {
+ error = -ENOMEM;
+ goto fail1;
+ }
+
+ xpad->irq_in = usb_alloc_urb(0, GFP_KERNEL);
+ if (!xpad->irq_in) {
+ error = -ENOMEM;
+ goto fail2;
+ }
+
+ xpad->udev = udev;
+ xpad->mapping = xpad_device[i].mapping;
+ xpad->xtype = xpad_device[i].xtype;
+
+ if (xpad->xtype == XTYPE_UNKNOWN) {
+ if (intf->cur_altsetting->desc.bInterfaceClass == USB_CLASS_VENDOR_SPEC) {
+ if (intf->cur_altsetting->desc.bInterfaceProtocol == 129)
+ xpad->xtype = XTYPE_XBOX360W;
+ else
+ xpad->xtype = XTYPE_XBOX360;
+ } else
+ xpad->xtype = XTYPE_XBOX;
+
+ if (dpad_to_buttons)
+ xpad->mapping |= MAP_DPAD_TO_BUTTONS;
+ if (triggers_to_buttons)
+ xpad->mapping |= MAP_TRIGGERS_TO_BUTTONS;
+ if (sticks_to_null)
+ xpad->mapping |= MAP_STICKS_TO_NULL;
+ }
+
+ xpad->dev = input_dev;
+ usb_make_path(udev, xpad->phys, sizeof(xpad->phys));
+ strlcat(xpad->phys, "/input0", sizeof(xpad->phys));
+
+ input_dev->name = xpad_device[i].name;
+ input_dev->phys = xpad->phys;
+ usb_to_input_id(udev, &input_dev->id);
+ input_dev->dev.parent = &intf->dev;
+
+ input_set_drvdata(input_dev, xpad);
+
+ input_dev->open = xpad_open;
+ input_dev->close = xpad_close;
+
+ input_dev->evbit[0] = BIT_MASK(EV_KEY);
+
+ if (!(xpad->mapping & MAP_STICKS_TO_NULL)) {
+ input_dev->evbit[0] |= BIT_MASK(EV_ABS);
+ /* set up axes */
+ for (i = 0; xpad_abs[i] >= 0; i++)
+ xpad_set_up_abs(input_dev, xpad_abs[i]);
+ }
+
+ /* set up standard buttons */
+ for (i = 0; xpad_common_btn[i] >= 0; i++)
+ __set_bit(xpad_common_btn[i], input_dev->keybit);
+
+ /* set up model-specific ones */
+ if (xpad->xtype == XTYPE_XBOX360 || xpad->xtype == XTYPE_XBOX360W) {
+ for (i = 0; xpad360_btn[i] >= 0; i++)
+ __set_bit(xpad360_btn[i], input_dev->keybit);
+ } else {
+ for (i = 0; xpad_btn[i] >= 0; i++)
+ __set_bit(xpad_btn[i], input_dev->keybit);
+ }
+
+ if (xpad->mapping & MAP_DPAD_TO_BUTTONS) {
+ for (i = 0; xpad_btn_pad[i] >= 0; i++)
+ __set_bit(xpad_btn_pad[i], input_dev->keybit);
+ } else {
+ for (i = 0; xpad_abs_pad[i] >= 0; i++)
+ xpad_set_up_abs(input_dev, xpad_abs_pad[i]);
+ }
+
+ if (xpad->mapping & MAP_TRIGGERS_TO_BUTTONS) {
+ for (i = 0; xpad_btn_triggers[i] >= 0; i++)
+ __set_bit(xpad_btn_triggers[i], input_dev->keybit);
+ } else {
+ for (i = 0; xpad_abs_triggers[i] >= 0; i++)
+ xpad_set_up_abs(input_dev, xpad_abs_triggers[i]);
+ }
+
+ error = xpad_init_output(intf, xpad);
+ if (error)
+ goto fail3;
+
+ error = xpad_init_ff(xpad);
+ if (error)
+ goto fail4;
+
+ error = xpad_led_probe(xpad);
+ if (error)
+ goto fail5;
+
+ ep_irq_in = &intf->cur_altsetting->endpoint[0].desc;
+ usb_fill_int_urb(xpad->irq_in, udev,
+ usb_rcvintpipe(udev, ep_irq_in->bEndpointAddress),
+ xpad->idata, XPAD_PKT_LEN, xpad_irq_in,
+ xpad, ep_irq_in->bInterval);
+ xpad->irq_in->transfer_dma = xpad->idata_dma;
+ xpad->irq_in->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
+
+ error = input_register_device(xpad->dev);
+ if (error)
+ goto fail6;
+
+ usb_set_intfdata(intf, xpad);
+
+ if (xpad->xtype == XTYPE_XBOX360W) {
+ /*
+ * Setup the message to set the LEDs on the
+ * controller when it shows up
+ */
+ xpad->bulk_out = usb_alloc_urb(0, GFP_KERNEL);
+ if (!xpad->bulk_out) {
+ error = -ENOMEM;
+ goto fail7;
+ }
+
+ xpad->bdata = kzalloc(XPAD_PKT_LEN, GFP_KERNEL);
+ if (!xpad->bdata) {
+ error = -ENOMEM;
+ goto fail8;
+ }
+
+ xpad->bdata[2] = 0x08;
+ switch (intf->cur_altsetting->desc.bInterfaceNumber) {
+ case 0:
+ xpad->bdata[3] = 0x42;
+ break;
+ case 2:
+ xpad->bdata[3] = 0x43;
+ break;
+ case 4:
+ xpad->bdata[3] = 0x44;
+ break;
+ case 6:
+ xpad->bdata[3] = 0x45;
+ }
+
+ ep_irq_in = &intf->cur_altsetting->endpoint[1].desc;
+ usb_fill_bulk_urb(xpad->bulk_out, udev,
+ usb_sndbulkpipe(udev, ep_irq_in->bEndpointAddress),
+ xpad->bdata, XPAD_PKT_LEN, xpad_bulk_out, xpad);
+
+ /*
+ * Submit the int URB immediately rather than waiting for open
+ * because we get status messages from the device whether
+ * or not any controllers are attached. In fact, it's
+ * exactly the message that a controller has arrived that
+ * we're waiting for.
+ */
+ xpad->irq_in->dev = xpad->udev;
+ error = usb_submit_urb(xpad->irq_in, GFP_KERNEL);
+ if (error)
+ goto fail9;
+ }
+
+ return 0;
+
+ fail9: kfree(xpad->bdata);
+ fail8: usb_free_urb(xpad->bulk_out);
+ fail7: input_unregister_device(input_dev);
+ input_dev = NULL;
+ fail6: xpad_led_disconnect(xpad);
+ fail5: if (input_dev)
+ input_ff_destroy(input_dev);
+ fail4: xpad_deinit_output(xpad);
+ fail3: usb_free_urb(xpad->irq_in);
+ fail2: usb_free_coherent(udev, XPAD_PKT_LEN, xpad->idata, xpad->idata_dma);
+ fail1: input_free_device(input_dev);
+ kfree(xpad);
+ return error;
+
+}
+
+static void xpad_disconnect(struct usb_interface *intf)
+{
+ struct usb_xpad *xpad = usb_get_intfdata (intf);
+
+ xpad_led_disconnect(xpad);
+ input_unregister_device(xpad->dev);
+ xpad_deinit_output(xpad);
+
+ if (xpad->xtype == XTYPE_XBOX360W) {
+ usb_kill_urb(xpad->bulk_out);
+ usb_free_urb(xpad->bulk_out);
+ usb_kill_urb(xpad->irq_in);
+ }
+
+ usb_free_urb(xpad->irq_in);
+ usb_free_coherent(xpad->udev, XPAD_PKT_LEN,
+ xpad->idata, xpad->idata_dma);
+
+ kfree(xpad->bdata);
+ kfree(xpad);
+
+ usb_set_intfdata(intf, NULL);
+}
+
+static struct usb_driver xpad_driver = {
+ .name = "xpad",
+ .probe = xpad_probe,
+ .disconnect = xpad_disconnect,
+ .id_table = xpad_table,
+};
+
+static int __init usb_xpad_init(void)
+{
+ return usb_register(&xpad_driver);
+}
+
+static void __exit usb_xpad_exit(void)
+{
+ usb_deregister(&xpad_driver);
+}
+
+module_init(usb_xpad_init);
+module_exit(usb_xpad_exit);
+
+MODULE_AUTHOR(DRIVER_AUTHOR);
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
diff --git a/drivers/input/joystick/zhenhua.c b/drivers/input/joystick/zhenhua.c
new file mode 100644
index 0000000..b585312
--- /dev/null
+++ b/drivers/input/joystick/zhenhua.c
@@ -0,0 +1,243 @@
+/*
+ * derived from "twidjoy.c"
+ *
+ * Copyright (c) 2008 Martin Kebert
+ * Copyright (c) 2001 Arndt Schoenewald
+ * Copyright (c) 2000-2001 Vojtech Pavlik
+ * Copyright (c) 2000 Mark Fletcher
+ *
+ */
+
+/*
+ * Driver to use 4CH RC transmitter using Zhen Hua 5-byte protocol (Walkera Lama,
+ * EasyCopter etc.) as a joystick under Linux.
+ *
+ * RC transmitters using Zhen Hua 5-byte protocol are cheap four channels
+ * transmitters for control a RC planes or RC helicopters with possibility to
+ * connect on a serial port.
+ * Data coming from transmitter is in this order:
+ * 1. byte = synchronisation byte
+ * 2. byte = X axis
+ * 3. byte = Y axis
+ * 4. byte = RZ axis
+ * 5. byte = Z axis
+ * (and this is repeated)
+ *
+ * For questions or feedback regarding this driver module please contact:
+ * Martin Kebert <gkmarty@gmail.com> - but I am not a C-programmer nor kernel
+ * coder :-(
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/input.h>
+#include <linux/serio.h>
+#include <linux/init.h>
+
+#define DRIVER_DESC "RC transmitter with 5-byte Zhen Hua protocol joystick driver"
+
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+/*
+ * Constants.
+ */
+
+#define ZHENHUA_MAX_LENGTH 5
+
+/*
+ * Zhen Hua data.
+ */
+
+struct zhenhua {
+ struct input_dev *dev;
+ int idx;
+ unsigned char data[ZHENHUA_MAX_LENGTH];
+ char phys[32];
+};
+
+
+/* bits in all incoming bytes needs to be "reversed" */
+static int zhenhua_bitreverse(int x)
+{
+ x = ((x & 0xaa) >> 1) | ((x & 0x55) << 1);
+ x = ((x & 0xcc) >> 2) | ((x & 0x33) << 2);
+ x = ((x & 0xf0) >> 4) | ((x & 0x0f) << 4);
+ return x;
+}
+
+/*
+ * zhenhua_process_packet() decodes packets the driver receives from the
+ * RC transmitter. It updates the data accordingly.
+ */
+
+static void zhenhua_process_packet(struct zhenhua *zhenhua)
+{
+ struct input_dev *dev = zhenhua->dev;
+ unsigned char *data = zhenhua->data;
+
+ input_report_abs(dev, ABS_Y, data[1]);
+ input_report_abs(dev, ABS_X, data[2]);
+ input_report_abs(dev, ABS_RZ, data[3]);
+ input_report_abs(dev, ABS_Z, data[4]);
+
+ input_sync(dev);
+}
+
+/*
+ * zhenhua_interrupt() is called by the low level driver when characters
+ * are ready for us. We then buffer them for further processing, or call the
+ * packet processing routine.
+ */
+
+static irqreturn_t zhenhua_interrupt(struct serio *serio, unsigned char data, unsigned int flags)
+{
+ struct zhenhua *zhenhua = serio_get_drvdata(serio);
+
+ /* All Zhen Hua packets are 5 bytes. The fact that the first byte
+ * is allways 0xf7 and all others are in range 0x32 - 0xc8 (50-200)
+ * can be used to check and regain sync. */
+
+ if (data == 0xef)
+ zhenhua->idx = 0; /* this byte starts a new packet */
+ else if (zhenhua->idx == 0)
+ return IRQ_HANDLED; /* wrong MSB -- ignore this byte */
+
+ if (zhenhua->idx < ZHENHUA_MAX_LENGTH)
+ zhenhua->data[zhenhua->idx++] = zhenhua_bitreverse(data);
+
+ if (zhenhua->idx == ZHENHUA_MAX_LENGTH) {
+ zhenhua_process_packet(zhenhua);
+ zhenhua->idx = 0;
+ }
+
+ return IRQ_HANDLED;
+}
+
+/*
+ * zhenhua_disconnect() is the opposite of zhenhua_connect()
+ */
+
+static void zhenhua_disconnect(struct serio *serio)
+{
+ struct zhenhua *zhenhua = serio_get_drvdata(serio);
+
+ serio_close(serio);
+ serio_set_drvdata(serio, NULL);
+ input_unregister_device(zhenhua->dev);
+ kfree(zhenhua);
+}
+
+/*
+ * zhenhua_connect() is the routine that is called when someone adds a
+ * new serio device. It looks for the Twiddler, and if found, registers
+ * it as an input device.
+ */
+
+static int zhenhua_connect(struct serio *serio, struct serio_driver *drv)
+{
+ struct zhenhua *zhenhua;
+ struct input_dev *input_dev;
+ int err = -ENOMEM;
+
+ zhenhua = kzalloc(sizeof(struct zhenhua), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!zhenhua || !input_dev)
+ goto fail1;
+
+ zhenhua->dev = input_dev;
+ snprintf(zhenhua->phys, sizeof(zhenhua->phys), "%s/input0", serio->phys);
+
+ input_dev->name = "Zhen Hua 5-byte device";
+ input_dev->phys = zhenhua->phys;
+ input_dev->id.bustype = BUS_RS232;
+ input_dev->id.vendor = SERIO_ZHENHUA;
+ input_dev->id.product = 0x0001;
+ input_dev->id.version = 0x0100;
+ input_dev->dev.parent = &serio->dev;
+
+ input_dev->evbit[0] = BIT(EV_ABS);
+ input_set_abs_params(input_dev, ABS_X, 50, 200, 0, 0);
+ input_set_abs_params(input_dev, ABS_Y, 50, 200, 0, 0);
+ input_set_abs_params(input_dev, ABS_Z, 50, 200, 0, 0);
+ input_set_abs_params(input_dev, ABS_RZ, 50, 200, 0, 0);
+
+ serio_set_drvdata(serio, zhenhua);
+
+ err = serio_open(serio, drv);
+ if (err)
+ goto fail2;
+
+ err = input_register_device(zhenhua->dev);
+ if (err)
+ goto fail3;
+
+ return 0;
+
+ fail3: serio_close(serio);
+ fail2: serio_set_drvdata(serio, NULL);
+ fail1: input_free_device(input_dev);
+ kfree(zhenhua);
+ return err;
+}
+
+/*
+ * The serio driver structure.
+ */
+
+static struct serio_device_id zhenhua_serio_ids[] = {
+ {
+ .type = SERIO_RS232,
+ .proto = SERIO_ZHENHUA,
+ .id = SERIO_ANY,
+ .extra = SERIO_ANY,
+ },
+ { 0 }
+};
+
+MODULE_DEVICE_TABLE(serio, zhenhua_serio_ids);
+
+static struct serio_driver zhenhua_drv = {
+ .driver = {
+ .name = "zhenhua",
+ },
+ .description = DRIVER_DESC,
+ .id_table = zhenhua_serio_ids,
+ .interrupt = zhenhua_interrupt,
+ .connect = zhenhua_connect,
+ .disconnect = zhenhua_disconnect,
+};
+
+/*
+ * The functions for inserting/removing us as a module.
+ */
+
+static int __init zhenhua_init(void)
+{
+ return serio_register_driver(&zhenhua_drv);
+}
+
+static void __exit zhenhua_exit(void)
+{
+ serio_unregister_driver(&zhenhua_drv);
+}
+
+module_init(zhenhua_init);
+module_exit(zhenhua_exit);
diff --git a/drivers/input/keyboard/Kconfig b/drivers/input/keyboard/Kconfig
new file mode 100644
index 0000000..615c21f
--- /dev/null
+++ b/drivers/input/keyboard/Kconfig
@@ -0,0 +1,566 @@
+#
+# Input core configuration
+#
+menuconfig INPUT_KEYBOARD
+ bool "Keyboards" if EXPERT || !X86
+ default y
+ help
+ Say Y here, and a list of supported keyboards will be displayed.
+ This option doesn't affect the kernel.
+
+ If unsure, say Y.
+
+if INPUT_KEYBOARD
+
+config KEYBOARD_ADP5520
+ tristate "Keypad Support for ADP5520 PMIC"
+ depends on PMIC_ADP5520
+ help
+ This option enables support for the keypad scan matrix
+ on Analog Devices ADP5520 PMICs.
+
+ To compile this driver as a module, choose M here: the module will
+ be called adp5520-keys.
+
+config KEYBOARD_ADP5588
+ tristate "ADP5588/87 I2C QWERTY Keypad and IO Expander"
+ depends on I2C
+ help
+ Say Y here if you want to use a ADP5588/87 attached to your
+ system I2C bus.
+
+ To compile this driver as a module, choose M here: the
+ module will be called adp5588-keys.
+
+config KEYBOARD_ADP5589
+ tristate "ADP5585/ADP5589 I2C QWERTY Keypad and IO Expander"
+ depends on I2C
+ help
+ Say Y here if you want to use a ADP5585/ADP5589 attached to your
+ system I2C bus.
+
+ To compile this driver as a module, choose M here: the
+ module will be called adp5589-keys.
+
+config KEYBOARD_AMIGA
+ tristate "Amiga keyboard"
+ depends on AMIGA
+ help
+ Say Y here if you are running Linux on any AMIGA and have a keyboard
+ attached.
+
+ To compile this driver as a module, choose M here: the
+ module will be called amikbd.
+
+config ATARI_KBD_CORE
+ bool
+
+config KEYBOARD_ATARI
+ tristate "Atari keyboard"
+ depends on ATARI
+ select ATARI_KBD_CORE
+ help
+ Say Y here if you are running Linux on any Atari and have a keyboard
+ attached.
+
+ To compile this driver as a module, choose M here: the
+ module will be called atakbd.
+
+config KEYBOARD_ATKBD
+ tristate "AT keyboard" if EXPERT || !X86
+ default y
+ select SERIO
+ select SERIO_LIBPS2
+ select SERIO_I8042 if X86
+ select SERIO_GSCPS2 if GSC
+ help
+ Say Y here if you want to use a standard AT or PS/2 keyboard. Usually
+ you'll need this, unless you have a different type keyboard (USB, ADB
+ or other). This also works for AT and PS/2 keyboards connected over a
+ PS/2 to serial converter.
+
+ If unsure, say Y.
+
+ To compile this driver as a module, choose M here: the
+ module will be called atkbd.
+
+config KEYBOARD_ATKBD_HP_KEYCODES
+ bool "Use HP keyboard scancodes"
+ depends on PARISC && KEYBOARD_ATKBD
+ default y
+ help
+ Say Y here if you have a PA-RISC machine and want to use an AT or
+ PS/2 keyboard, and your keyboard uses keycodes that are specific to
+ PA-RISC keyboards.
+
+ Say N if you use a standard keyboard.
+
+config KEYBOARD_ATKBD_RDI_KEYCODES
+ bool "Use PrecisionBook keyboard scancodes"
+ depends on KEYBOARD_ATKBD_HP_KEYCODES
+ default n
+ help
+ If you have an RDI PrecisionBook, say Y here if you want to use its
+ built-in keyboard (as opposed to an external keyboard).
+
+ The PrecisionBook has five keys that conflict with those used by most
+ AT and PS/2 keyboards. These are as follows:
+
+ PrecisionBook Standard AT or PS/2
+
+ F1 F12
+ Left Ctrl Left Alt
+ Caps Lock Left Ctrl
+ Right Ctrl Caps Lock
+ Left 102nd key (the key to the right of Left Shift)
+
+ If you say N here, and use the PrecisionBook keyboard, then each key
+ in the left-hand column will be interpreted as the corresponding key
+ in the right-hand column.
+
+ If you say Y here, and use an external keyboard, then each key in the
+ right-hand column will be interpreted as the key shown in the
+ left-hand column.
+
+config KEYBOARD_QT1070
+ tristate "Atmel AT42QT1070 Touch Sensor Chip"
+ depends on I2C
+ help
+ Say Y here if you want to use Atmel AT42QT1070 QTouch
+ Sensor chip as input device.
+
+ To compile this driver as a module, choose M here:
+ the module will be called qt1070
+
+config KEYBOARD_QT2160
+ tristate "Atmel AT42QT2160 Touch Sensor Chip"
+ depends on I2C && EXPERIMENTAL
+ help
+ If you say yes here you get support for Atmel AT42QT2160 Touch
+ Sensor chip as a keyboard input.
+
+ This driver can also be built as a module. If so, the module
+ will be called qt2160.
+
+config KEYBOARD_BFIN
+ tristate "Blackfin BF54x keypad support"
+ depends on (BF54x && !BF544)
+ help
+ Say Y here if you want to use the BF54x keypad.
+
+ To compile this driver as a module, choose M here: the
+ module will be called bf54x-keys.
+
+config KEYBOARD_LKKBD
+ tristate "DECstation/VAXstation LK201/LK401 keyboard"
+ select SERIO
+ help
+ Say Y here if you want to use a LK201 or LK401 style serial
+ keyboard. This keyboard is also useable on PCs if you attach
+ it with the inputattach program. The connector pinout is
+ described within lkkbd.c.
+
+ To compile this driver as a module, choose M here: the
+ module will be called lkkbd.
+
+config KEYBOARD_EP93XX
+ tristate "EP93xx Matrix Keypad support"
+ depends on ARCH_EP93XX
+ help
+ Say Y here to enable the matrix keypad on the Cirrus EP93XX.
+
+ To compile this driver as a module, choose M here: the
+ module will be called ep93xx_keypad.
+
+config KEYBOARD_GPIO
+ tristate "GPIO Buttons"
+ depends on GENERIC_GPIO
+ help
+ This driver implements support for buttons connected
+ to GPIO pins of various CPUs (and some other chips).
+
+ Say Y here if your device has buttons connected
+ directly to such GPIO pins. Your board-specific
+ setup logic must also provide a platform device,
+ with configuration data saying which GPIOs are used.
+
+ To compile this driver as a module, choose M here: the
+ module will be called gpio_keys.
+
+config KEYBOARD_GPIO_POLLED
+ tristate "Polled GPIO buttons"
+ depends on GENERIC_GPIO
+ select INPUT_POLLDEV
+ help
+ This driver implements support for buttons connected
+ to GPIO pins that are not capable of generating interrupts.
+
+ Say Y here if your device has buttons connected
+ directly to such GPIO pins. Your board-specific
+ setup logic must also provide a platform device,
+ with configuration data saying which GPIOs are used.
+
+ To compile this driver as a module, choose M here: the
+ module will be called gpio_keys_polled.
+
+config KEYBOARD_TCA6416
+ tristate "TCA6416/TCA6408A Keypad Support"
+ depends on I2C
+ help
+ This driver implements basic keypad functionality
+ for keys connected through TCA6416/TCA6408A IO expanders.
+
+ Say Y here if your device has keys connected to
+ TCA6416/TCA6408A IO expander. Your board-specific setup logic
+ must also provide pin-mask details(of which TCA6416 pins
+ are used for keypad).
+
+ If enabled the entire TCA6416 device will be managed through
+ this driver.
+
+ To compile this driver as a module, choose M here: the
+ module will be called tca6416_keypad.
+
+config KEYBOARD_MATRIX
+ tristate "GPIO driven matrix keypad support"
+ depends on GENERIC_GPIO
+ help
+ Enable support for GPIO driven matrix keypad.
+
+ To compile this driver as a module, choose M here: the
+ module will be called matrix_keypad.
+
+config KEYBOARD_HIL_OLD
+ tristate "HP HIL keyboard support (simple driver)"
+ depends on GSC || HP300
+ default y
+ help
+ The "Human Interface Loop" is a older, 8-channel USB-like
+ controller used in several Hewlett Packard models. This driver
+ was adapted from the one written for m68k/hp300, and implements
+ support for a keyboard attached to the HIL port, but not for
+ any other types of HIL input devices like mice or tablets.
+ However, it has been thoroughly tested and is stable.
+
+ If you want full HIL support including support for multiple
+ keyboards, mice, and tablets, you have to enable the
+ "HP System Device Controller i8042 Support" in the input/serio
+ submenu.
+
+config KEYBOARD_HIL
+ tristate "HP HIL keyboard/pointer support"
+ depends on GSC || HP300
+ default y
+ select HP_SDC
+ select HIL_MLC
+ select SERIO
+ help
+ The "Human Interface Loop" is a older, 8-channel USB-like
+ controller used in several Hewlett Packard models.
+ This driver implements support for HIL-keyboards and pointing
+ devices (mice, tablets, touchscreens) attached
+ to your machine, so normally you should say Y here.
+
+config KEYBOARD_HP6XX
+ tristate "HP Jornada 6xx keyboard"
+ depends on SH_HP6XX
+ select INPUT_POLLDEV
+ help
+ Say Y here if you have a HP Jornada 620/660/680/690 and want to
+ support the built-in keyboard.
+
+ To compile this driver as a module, choose M here: the
+ module will be called jornada680_kbd.
+
+config KEYBOARD_HP7XX
+ tristate "HP Jornada 7xx keyboard"
+ depends on SA1100_JORNADA720_SSP && SA1100_SSP
+ help
+ Say Y here if you have a HP Jornada 710/720/728 and want to
+ support the built-in keyboard.
+
+ To compile this driver as a module, choose M here: the
+ module will be called jornada720_kbd.
+
+config KEYBOARD_LM8323
+ tristate "LM8323 keypad chip"
+ depends on I2C
+ depends on LEDS_CLASS
+ help
+ If you say yes here you get support for the National Semiconductor
+ LM8323 keypad controller.
+
+ To compile this driver as a module, choose M here: the
+ module will be called lm8323.
+
+config KEYBOARD_LOCOMO
+ tristate "LoCoMo Keyboard Support"
+ depends on SHARP_LOCOMO
+ help
+ Say Y here if you are running Linux on a Sharp Zaurus Collie or Poodle based PDA
+
+ To compile this driver as a module, choose M here: the
+ module will be called locomokbd.
+
+config KEYBOARD_MAPLE
+ tristate "Maple bus keyboard"
+ depends on SH_DREAMCAST && MAPLE
+ help
+ Say Y here if you have a Dreamcast console running Linux and have
+ a keyboard attached to its Maple bus.
+
+ To compile this driver as a module, choose M here: the
+ module will be called maple_keyb.
+
+config KEYBOARD_MAX7359
+ tristate "Maxim MAX7359 Key Switch Controller"
+ depends on I2C
+ help
+ If you say yes here you get support for the Maxim MAX7359 Key
+ Switch Controller chip. This providers microprocessors with
+ management of up to 64 key switches
+
+ To compile this driver as a module, choose M here: the
+ module will be called max7359_keypad.
+
+config KEYBOARD_MCS
+ tristate "MELFAS MCS Touchkey"
+ depends on I2C
+ help
+ Say Y here if you have the MELFAS MCS5000/5080 touchkey controller
+ chip in your system.
+
+ If unsure, say N.
+
+ To compile this driver as a module, choose M here: the
+ module will be called mcs_touchkey.
+
+config KEYBOARD_MPR121
+ tristate "Freescale MPR121 Touchkey"
+ depends on I2C
+ help
+ Say Y here if you have Freescale MPR121 touchkey controller
+ chip in your system.
+
+ If unsure, say N.
+
+ To compile this driver as a module, choose M here: the
+ module will be called mpr121_touchkey.
+
+config KEYBOARD_IMX
+ tristate "IMX keypad support"
+ depends on ARCH_MXC
+ help
+ Enable support for IMX keypad port.
+
+ To compile this driver as a module, choose M here: the
+ module will be called imx_keypad.
+
+config KEYBOARD_NEWTON
+ tristate "Newton keyboard"
+ select SERIO
+ help
+ Say Y here if you have a Newton keyboard on a serial port.
+
+ To compile this driver as a module, choose M here: the
+ module will be called newtonkbd.
+
+config KEYBOARD_NOMADIK
+ tristate "ST-Ericsson Nomadik SKE keyboard"
+ depends on PLAT_NOMADIK
+ help
+ Say Y here if you want to use a keypad provided on the SKE controller
+ used on the Ux500 and Nomadik platforms
+
+ To compile this driver as a module, choose M here: the
+ module will be called nmk-ske-keypad.
+
+config KEYBOARD_TEGRA
+ tristate "NVIDIA Tegra internal matrix keyboard controller support"
+ depends on ARCH_TEGRA
+ help
+ Say Y here if you want to use a matrix keyboard connected directly
+ to the internal keyboard controller on Tegra SoCs.
+
+ To compile this driver as a module, choose M here: the
+ module will be called tegra-kbc.
+
+config KEYBOARD_OPENCORES
+ tristate "OpenCores Keyboard Controller"
+ help
+ Say Y here if you want to use the OpenCores Keyboard Controller
+ http://www.opencores.org/project,keyboardcontroller
+
+ To compile this driver as a module, choose M here; the
+ module will be called opencores-kbd.
+
+config KEYBOARD_PXA27x
+ tristate "PXA27x/PXA3xx keypad support"
+ depends on PXA27x || PXA3xx || ARCH_MMP
+ help
+ Enable support for PXA27x/PXA3xx keypad controller.
+
+ To compile this driver as a module, choose M here: the
+ module will be called pxa27x_keypad.
+
+config KEYBOARD_PXA930_ROTARY
+ tristate "PXA930/PXA935 Enhanced Rotary Controller Support"
+ depends on CPU_PXA930 || CPU_PXA935
+ help
+ Enable support for PXA930/PXA935 Enhanced Rotary Controller.
+
+ To compile this driver as a module, choose M here: the
+ module will be called pxa930_rotary.
+
+config KEYBOARD_PMIC8XXX
+ tristate "Qualcomm PMIC8XXX keypad support"
+ depends on MFD_PM8XXX
+ help
+ Say Y here if you want to enable the driver for the PMIC8XXX
+ keypad provided as a reference design from Qualcomm. This is intended
+ to support upto 18x8 matrix based keypad design.
+
+ To compile this driver as a module, choose M here: the module will
+ be called pmic8xxx-keypad.
+
+config KEYBOARD_SAMSUNG
+ tristate "Samsung keypad support"
+ depends on SAMSUNG_DEV_KEYPAD
+ help
+ Say Y here if you want to use the Samsung keypad.
+
+ To compile this driver as a module, choose M here: the
+ module will be called samsung-keypad.
+
+config KEYBOARD_STOWAWAY
+ tristate "Stowaway keyboard"
+ select SERIO
+ help
+ Say Y here if you have a Stowaway keyboard on a serial port.
+ Stowaway compatible keyboards like Dicota Input-PDA keyboard
+ are also supported by this driver.
+
+ To compile this driver as a module, choose M here: the
+ module will be called stowaway.
+
+config KEYBOARD_SUNKBD
+ tristate "Sun Type 4 and Type 5 keyboard"
+ select SERIO
+ help
+ Say Y here if you want to use a Sun Type 4 or Type 5 keyboard,
+ connected either to the Sun keyboard connector or to an serial
+ (RS-232) port via a simple adapter.
+
+ To compile this driver as a module, choose M here: the
+ module will be called sunkbd.
+
+config KEYBOARD_SH_KEYSC
+ tristate "SuperH KEYSC keypad support"
+ depends on SUPERH || ARCH_SHMOBILE
+ help
+ Say Y here if you want to use a keypad attached to the KEYSC block
+ on SuperH processors such as sh7722 and sh7343.
+
+ To compile this driver as a module, choose M here: the
+ module will be called sh_keysc.
+
+config KEYBOARD_STMPE
+ tristate "STMPE keypad support"
+ depends on MFD_STMPE
+ help
+ Say Y here if you want to use the keypad controller on STMPE I/O
+ expanders.
+
+ To compile this driver as a module, choose M here: the module will be
+ called stmpe-keypad.
+
+config KEYBOARD_DAVINCI
+ tristate "TI DaVinci Key Scan"
+ depends on ARCH_DAVINCI_DM365
+ help
+ Say Y to enable keypad module support for the TI DaVinci
+ platforms (DM365).
+
+ To compile this driver as a module, choose M here: the
+ module will be called davinci_keyscan.
+
+config KEYBOARD_OMAP
+ tristate "TI OMAP keypad support"
+ depends on (ARCH_OMAP1 || ARCH_OMAP2)
+ help
+ Say Y here if you want to use the OMAP keypad.
+
+ To compile this driver as a module, choose M here: the
+ module will be called omap-keypad.
+
+config KEYBOARD_OMAP4
+ tristate "TI OMAP4 keypad support"
+ depends on ARCH_OMAP4
+ help
+ Say Y here if you want to use the OMAP4 keypad.
+
+ To compile this driver as a module, choose M here: the
+ module will be called omap4-keypad.
+
+config KEYBOARD_SPEAR
+ tristate "ST SPEAR keyboard support"
+ depends on PLAT_SPEAR
+ help
+ Say Y here if you want to use the SPEAR keyboard.
+
+ To compile this driver as a module, choose M here: the
+ module will be called spear-keboard.
+
+config KEYBOARD_TC3589X
+ tristate "TC3589X Keypad support"
+ depends on MFD_TC3589X
+ help
+ Say Y here if you want to use the keypad controller on
+ TC35892/3 I/O expander.
+
+ To compile this driver as a module, choose M here: the
+ module will be called tc3589x-keypad.
+
+config KEYBOARD_TNETV107X
+ tristate "TI TNETV107X keypad support"
+ depends on ARCH_DAVINCI_TNETV107X
+ help
+ Say Y here if you want to use the TNETV107X keypad.
+
+ To compile this driver as a module, choose M here: the
+ module will be called tnetv107x-keypad.
+
+config KEYBOARD_TWL4030
+ tristate "TI TWL4030/TWL5030/TPS659x0 keypad support"
+ depends on TWL4030_CORE
+ help
+ Say Y here if your board use the keypad controller on
+ TWL4030 family chips. It's safe to say enable this
+ even on boards that don't use the keypad controller.
+
+ To compile this driver as a module, choose M here: the
+ module will be called twl4030_keypad.
+
+config KEYBOARD_XTKBD
+ tristate "XT keyboard"
+ select SERIO
+ help
+ Say Y here if you want to use the old IBM PC/XT keyboard (or
+ compatible) on your system. This is only possible with a
+ parallel port keyboard adapter, you cannot connect it to the
+ keyboard port on a PC that runs Linux.
+
+ To compile this driver as a module, choose M here: the
+ module will be called xtkbd.
+
+config KEYBOARD_W90P910
+ tristate "W90P910 Matrix Keypad support"
+ depends on ARCH_W90X900
+ help
+ Say Y here to enable the matrix keypad on evaluation board
+ based on W90P910.
+
+ To compile this driver as a module, choose M here: the
+ module will be called w90p910_keypad.
+
+endif
diff --git a/drivers/input/keyboard/Makefile b/drivers/input/keyboard/Makefile
new file mode 100644
index 0000000..ddde0fd
--- /dev/null
+++ b/drivers/input/keyboard/Makefile
@@ -0,0 +1,53 @@
+#
+# Makefile for the input core drivers.
+#
+
+# Each configuration option enables a list of files.
+
+obj-$(CONFIG_KEYBOARD_ADP5520) += adp5520-keys.o
+obj-$(CONFIG_KEYBOARD_ADP5588) += adp5588-keys.o
+obj-$(CONFIG_KEYBOARD_ADP5589) += adp5589-keys.o
+obj-$(CONFIG_KEYBOARD_AMIGA) += amikbd.o
+obj-$(CONFIG_KEYBOARD_ATARI) += atakbd.o
+obj-$(CONFIG_KEYBOARD_ATKBD) += atkbd.o
+obj-$(CONFIG_KEYBOARD_BFIN) += bf54x-keys.o
+obj-$(CONFIG_KEYBOARD_DAVINCI) += davinci_keyscan.o
+obj-$(CONFIG_KEYBOARD_EP93XX) += ep93xx_keypad.o
+obj-$(CONFIG_KEYBOARD_GPIO) += gpio_keys.o
+obj-$(CONFIG_KEYBOARD_GPIO_POLLED) += gpio_keys_polled.o
+obj-$(CONFIG_KEYBOARD_TCA6416) += tca6416-keypad.o
+obj-$(CONFIG_KEYBOARD_HIL) += hil_kbd.o
+obj-$(CONFIG_KEYBOARD_HIL_OLD) += hilkbd.o
+obj-$(CONFIG_KEYBOARD_IMX) += imx_keypad.o
+obj-$(CONFIG_KEYBOARD_HP6XX) += jornada680_kbd.o
+obj-$(CONFIG_KEYBOARD_HP7XX) += jornada720_kbd.o
+obj-$(CONFIG_KEYBOARD_LKKBD) += lkkbd.o
+obj-$(CONFIG_KEYBOARD_LM8323) += lm8323.o
+obj-$(CONFIG_KEYBOARD_LOCOMO) += locomokbd.o
+obj-$(CONFIG_KEYBOARD_MAPLE) += maple_keyb.o
+obj-$(CONFIG_KEYBOARD_MATRIX) += matrix_keypad.o
+obj-$(CONFIG_KEYBOARD_MAX7359) += max7359_keypad.o
+obj-$(CONFIG_KEYBOARD_MCS) += mcs_touchkey.o
+obj-$(CONFIG_KEYBOARD_MPR121) += mpr121_touchkey.o
+obj-$(CONFIG_KEYBOARD_NEWTON) += newtonkbd.o
+obj-$(CONFIG_KEYBOARD_NOMADIK) += nomadik-ske-keypad.o
+obj-$(CONFIG_KEYBOARD_OMAP) += omap-keypad.o
+obj-$(CONFIG_KEYBOARD_OMAP4) += omap4-keypad.o
+obj-$(CONFIG_KEYBOARD_OPENCORES) += opencores-kbd.o
+obj-$(CONFIG_KEYBOARD_PMIC8XXX) += pmic8xxx-keypad.o
+obj-$(CONFIG_KEYBOARD_PXA27x) += pxa27x_keypad.o
+obj-$(CONFIG_KEYBOARD_PXA930_ROTARY) += pxa930_rotary.o
+obj-$(CONFIG_KEYBOARD_QT1070) += qt1070.o
+obj-$(CONFIG_KEYBOARD_QT2160) += qt2160.o
+obj-$(CONFIG_KEYBOARD_SAMSUNG) += samsung-keypad.o
+obj-$(CONFIG_KEYBOARD_SH_KEYSC) += sh_keysc.o
+obj-$(CONFIG_KEYBOARD_SPEAR) += spear-keyboard.o
+obj-$(CONFIG_KEYBOARD_STMPE) += stmpe-keypad.o
+obj-$(CONFIG_KEYBOARD_STOWAWAY) += stowaway.o
+obj-$(CONFIG_KEYBOARD_SUNKBD) += sunkbd.o
+obj-$(CONFIG_KEYBOARD_TC3589X) += tc3589x-keypad.o
+obj-$(CONFIG_KEYBOARD_TEGRA) += tegra-kbc.o
+obj-$(CONFIG_KEYBOARD_TNETV107X) += tnetv107x-keypad.o
+obj-$(CONFIG_KEYBOARD_TWL4030) += twl4030_keypad.o
+obj-$(CONFIG_KEYBOARD_XTKBD) += xtkbd.o
+obj-$(CONFIG_KEYBOARD_W90P910) += w90p910_keypad.o
diff --git a/drivers/input/keyboard/adp5520-keys.c b/drivers/input/keyboard/adp5520-keys.c
new file mode 100644
index 0000000..3db8006
--- /dev/null
+++ b/drivers/input/keyboard/adp5520-keys.c
@@ -0,0 +1,221 @@
+/*
+ * Keypad driver for Analog Devices ADP5520 MFD PMICs
+ *
+ * Copyright 2009 Analog Devices Inc.
+ *
+ * Licensed under the GPL-2 or later.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/input.h>
+#include <linux/mfd/adp5520.h>
+#include <linux/slab.h>
+
+struct adp5520_keys {
+ struct input_dev *input;
+ struct notifier_block notifier;
+ struct device *master;
+ unsigned short keycode[ADP5520_KEYMAPSIZE];
+};
+
+static void adp5520_keys_report_event(struct adp5520_keys *dev,
+ unsigned short keymask, int value)
+{
+ int i;
+
+ for (i = 0; i < ADP5520_MAXKEYS; i++)
+ if (keymask & (1 << i))
+ input_report_key(dev->input, dev->keycode[i], value);
+
+ input_sync(dev->input);
+}
+
+static int adp5520_keys_notifier(struct notifier_block *nb,
+ unsigned long event, void *data)
+{
+ struct adp5520_keys *dev;
+ uint8_t reg_val_lo, reg_val_hi;
+ unsigned short keymask;
+
+ dev = container_of(nb, struct adp5520_keys, notifier);
+
+ if (event & ADP5520_KP_INT) {
+ adp5520_read(dev->master, ADP5520_KP_INT_STAT_1, ®_val_lo);
+ adp5520_read(dev->master, ADP5520_KP_INT_STAT_2, ®_val_hi);
+
+ keymask = (reg_val_hi << 8) | reg_val_lo;
+ /* Read twice to clear */
+ adp5520_read(dev->master, ADP5520_KP_INT_STAT_1, ®_val_lo);
+ adp5520_read(dev->master, ADP5520_KP_INT_STAT_2, ®_val_hi);
+ keymask |= (reg_val_hi << 8) | reg_val_lo;
+ adp5520_keys_report_event(dev, keymask, 1);
+ }
+
+ if (event & ADP5520_KR_INT) {
+ adp5520_read(dev->master, ADP5520_KR_INT_STAT_1, ®_val_lo);
+ adp5520_read(dev->master, ADP5520_KR_INT_STAT_2, ®_val_hi);
+
+ keymask = (reg_val_hi << 8) | reg_val_lo;
+ /* Read twice to clear */
+ adp5520_read(dev->master, ADP5520_KR_INT_STAT_1, ®_val_lo);
+ adp5520_read(dev->master, ADP5520_KR_INT_STAT_2, ®_val_hi);
+ keymask |= (reg_val_hi << 8) | reg_val_lo;
+ adp5520_keys_report_event(dev, keymask, 0);
+ }
+
+ return 0;
+}
+
+static int __devinit adp5520_keys_probe(struct platform_device *pdev)
+{
+ struct adp5520_keys_platform_data *pdata = pdev->dev.platform_data;
+ struct input_dev *input;
+ struct adp5520_keys *dev;
+ int ret, i;
+ unsigned char en_mask, ctl_mask = 0;
+
+ if (pdev->id != ID_ADP5520) {
+ dev_err(&pdev->dev, "only ADP5520 supports Keypad\n");
+ return -EINVAL;
+ }
+
+ if (pdata == NULL) {
+ dev_err(&pdev->dev, "missing platform data\n");
+ return -EINVAL;
+ }
+
+ if (!(pdata->rows_en_mask && pdata->cols_en_mask))
+ return -EINVAL;
+
+ dev = kzalloc(sizeof(*dev), GFP_KERNEL);
+ if (dev == NULL) {
+ dev_err(&pdev->dev, "failed to alloc memory\n");
+ return -ENOMEM;
+ }
+
+ input = input_allocate_device();
+ if (!input) {
+ ret = -ENOMEM;
+ goto err;
+ }
+
+ dev->master = pdev->dev.parent;
+ dev->input = input;
+
+ input->name = pdev->name;
+ input->phys = "adp5520-keys/input0";
+ input->dev.parent = &pdev->dev;
+
+ input_set_drvdata(input, dev);
+
+ input->id.bustype = BUS_I2C;
+ input->id.vendor = 0x0001;
+ input->id.product = 0x5520;
+ input->id.version = 0x0001;
+
+ input->keycodesize = sizeof(dev->keycode[0]);
+ input->keycodemax = pdata->keymapsize;
+ input->keycode = dev->keycode;
+
+ memcpy(dev->keycode, pdata->keymap,
+ pdata->keymapsize * input->keycodesize);
+
+ /* setup input device */
+ __set_bit(EV_KEY, input->evbit);
+
+ if (pdata->repeat)
+ __set_bit(EV_REP, input->evbit);
+
+ for (i = 0; i < input->keycodemax; i++)
+ __set_bit(dev->keycode[i], input->keybit);
+ __clear_bit(KEY_RESERVED, input->keybit);
+
+ ret = input_register_device(input);
+ if (ret) {
+ dev_err(&pdev->dev, "unable to register input device\n");
+ goto err;
+ }
+
+ en_mask = pdata->rows_en_mask | pdata->cols_en_mask;
+
+ ret = adp5520_set_bits(dev->master, ADP5520_GPIO_CFG_1, en_mask);
+
+ if (en_mask & ADP5520_COL_C3)
+ ctl_mask |= ADP5520_C3_MODE;
+
+ if (en_mask & ADP5520_ROW_R3)
+ ctl_mask |= ADP5520_R3_MODE;
+
+ if (ctl_mask)
+ ret |= adp5520_set_bits(dev->master, ADP5520_LED_CONTROL,
+ ctl_mask);
+
+ ret |= adp5520_set_bits(dev->master, ADP5520_GPIO_PULLUP,
+ pdata->rows_en_mask);
+
+ if (ret) {
+ dev_err(&pdev->dev, "failed to write\n");
+ ret = -EIO;
+ goto err1;
+ }
+
+ dev->notifier.notifier_call = adp5520_keys_notifier;
+ ret = adp5520_register_notifier(dev->master, &dev->notifier,
+ ADP5520_KP_IEN | ADP5520_KR_IEN);
+ if (ret) {
+ dev_err(&pdev->dev, "failed to register notifier\n");
+ goto err1;
+ }
+
+ platform_set_drvdata(pdev, dev);
+ return 0;
+
+err1:
+ input_unregister_device(input);
+ input = NULL;
+err:
+ input_free_device(input);
+ kfree(dev);
+ return ret;
+}
+
+static int __devexit adp5520_keys_remove(struct platform_device *pdev)
+{
+ struct adp5520_keys *dev = platform_get_drvdata(pdev);
+
+ adp5520_unregister_notifier(dev->master, &dev->notifier,
+ ADP5520_KP_IEN | ADP5520_KR_IEN);
+
+ input_unregister_device(dev->input);
+ kfree(dev);
+ return 0;
+}
+
+static struct platform_driver adp5520_keys_driver = {
+ .driver = {
+ .name = "adp5520-keys",
+ .owner = THIS_MODULE,
+ },
+ .probe = adp5520_keys_probe,
+ .remove = __devexit_p(adp5520_keys_remove),
+};
+
+static int __init adp5520_keys_init(void)
+{
+ return platform_driver_register(&adp5520_keys_driver);
+}
+module_init(adp5520_keys_init);
+
+static void __exit adp5520_keys_exit(void)
+{
+ platform_driver_unregister(&adp5520_keys_driver);
+}
+module_exit(adp5520_keys_exit);
+
+MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
+MODULE_DESCRIPTION("Keys ADP5520 Driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:adp5520-keys");
diff --git a/drivers/input/keyboard/adp5588-keys.c b/drivers/input/keyboard/adp5588-keys.c
new file mode 100644
index 0000000..4a7f534
--- /dev/null
+++ b/drivers/input/keyboard/adp5588-keys.c
@@ -0,0 +1,670 @@
+/*
+ * File: drivers/input/keyboard/adp5588_keys.c
+ * Description: keypad driver for ADP5588 and ADP5587
+ * I2C QWERTY Keypad and IO Expander
+ * Bugs: Enter bugs at http://blackfin.uclinux.org/
+ *
+ * Copyright (C) 2008-2010 Analog Devices Inc.
+ * Licensed under the GPL-2 or later.
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/workqueue.h>
+#include <linux/errno.h>
+#include <linux/pm.h>
+#include <linux/platform_device.h>
+#include <linux/input.h>
+#include <linux/i2c.h>
+#include <linux/gpio.h>
+#include <linux/slab.h>
+
+#include <linux/i2c/adp5588.h>
+
+/* Key Event Register xy */
+#define KEY_EV_PRESSED (1 << 7)
+#define KEY_EV_MASK (0x7F)
+
+#define KP_SEL(x) (0xFFFF >> (16 - x)) /* 2^x-1 */
+
+#define KEYP_MAX_EVENT 10
+
+/*
+ * Early pre 4.0 Silicon required to delay readout by at least 25ms,
+ * since the Event Counter Register updated 25ms after the interrupt
+ * asserted.
+ */
+#define WA_DELAYED_READOUT_REVID(rev) ((rev) < 4)
+
+struct adp5588_kpad {
+ struct i2c_client *client;
+ struct input_dev *input;
+ struct delayed_work work;
+ unsigned long delay;
+ unsigned short keycode[ADP5588_KEYMAPSIZE];
+ const struct adp5588_gpi_map *gpimap;
+ unsigned short gpimapsize;
+#ifdef CONFIG_GPIOLIB
+ unsigned char gpiomap[ADP5588_MAXGPIO];
+ bool export_gpio;
+ struct gpio_chip gc;
+ struct mutex gpio_lock; /* Protect cached dir, dat_out */
+ u8 dat_out[3];
+ u8 dir[3];
+#endif
+};
+
+static int adp5588_read(struct i2c_client *client, u8 reg)
+{
+ int ret = i2c_smbus_read_byte_data(client, reg);
+
+ if (ret < 0)
+ dev_err(&client->dev, "Read Error\n");
+
+ return ret;
+}
+
+static int adp5588_write(struct i2c_client *client, u8 reg, u8 val)
+{
+ return i2c_smbus_write_byte_data(client, reg, val);
+}
+
+#ifdef CONFIG_GPIOLIB
+static int adp5588_gpio_get_value(struct gpio_chip *chip, unsigned off)
+{
+ struct adp5588_kpad *kpad = container_of(chip, struct adp5588_kpad, gc);
+ unsigned int bank = ADP5588_BANK(kpad->gpiomap[off]);
+ unsigned int bit = ADP5588_BIT(kpad->gpiomap[off]);
+
+ return !!(adp5588_read(kpad->client, GPIO_DAT_STAT1 + bank) & bit);
+}
+
+static void adp5588_gpio_set_value(struct gpio_chip *chip,
+ unsigned off, int val)
+{
+ struct adp5588_kpad *kpad = container_of(chip, struct adp5588_kpad, gc);
+ unsigned int bank = ADP5588_BANK(kpad->gpiomap[off]);
+ unsigned int bit = ADP5588_BIT(kpad->gpiomap[off]);
+
+ mutex_lock(&kpad->gpio_lock);
+
+ if (val)
+ kpad->dat_out[bank] |= bit;
+ else
+ kpad->dat_out[bank] &= ~bit;
+
+ adp5588_write(kpad->client, GPIO_DAT_OUT1 + bank,
+ kpad->dat_out[bank]);
+
+ mutex_unlock(&kpad->gpio_lock);
+}
+
+static int adp5588_gpio_direction_input(struct gpio_chip *chip, unsigned off)
+{
+ struct adp5588_kpad *kpad = container_of(chip, struct adp5588_kpad, gc);
+ unsigned int bank = ADP5588_BANK(kpad->gpiomap[off]);
+ unsigned int bit = ADP5588_BIT(kpad->gpiomap[off]);
+ int ret;
+
+ mutex_lock(&kpad->gpio_lock);
+
+ kpad->dir[bank] &= ~bit;
+ ret = adp5588_write(kpad->client, GPIO_DIR1 + bank, kpad->dir[bank]);
+
+ mutex_unlock(&kpad->gpio_lock);
+
+ return ret;
+}
+
+static int adp5588_gpio_direction_output(struct gpio_chip *chip,
+ unsigned off, int val)
+{
+ struct adp5588_kpad *kpad = container_of(chip, struct adp5588_kpad, gc);
+ unsigned int bank = ADP5588_BANK(kpad->gpiomap[off]);
+ unsigned int bit = ADP5588_BIT(kpad->gpiomap[off]);
+ int ret;
+
+ mutex_lock(&kpad->gpio_lock);
+
+ kpad->dir[bank] |= bit;
+
+ if (val)
+ kpad->dat_out[bank] |= bit;
+ else
+ kpad->dat_out[bank] &= ~bit;
+
+ ret = adp5588_write(kpad->client, GPIO_DAT_OUT1 + bank,
+ kpad->dat_out[bank]);
+ ret |= adp5588_write(kpad->client, GPIO_DIR1 + bank,
+ kpad->dir[bank]);
+
+ mutex_unlock(&kpad->gpio_lock);
+
+ return ret;
+}
+
+static int __devinit adp5588_build_gpiomap(struct adp5588_kpad *kpad,
+ const struct adp5588_kpad_platform_data *pdata)
+{
+ bool pin_used[ADP5588_MAXGPIO];
+ int n_unused = 0;
+ int i;
+
+ memset(pin_used, 0, sizeof(pin_used));
+
+ for (i = 0; i < pdata->rows; i++)
+ pin_used[i] = true;
+
+ for (i = 0; i < pdata->cols; i++)
+ pin_used[i + GPI_PIN_COL_BASE - GPI_PIN_BASE] = true;
+
+ for (i = 0; i < kpad->gpimapsize; i++)
+ pin_used[kpad->gpimap[i].pin - GPI_PIN_BASE] = true;
+
+ for (i = 0; i < ADP5588_MAXGPIO; i++)
+ if (!pin_used[i])
+ kpad->gpiomap[n_unused++] = i;
+
+ return n_unused;
+}
+
+static int __devinit adp5588_gpio_add(struct adp5588_kpad *kpad)
+{
+ struct device *dev = &kpad->client->dev;
+ const struct adp5588_kpad_platform_data *pdata = dev->platform_data;
+ const struct adp5588_gpio_platform_data *gpio_data = pdata->gpio_data;
+ int i, error;
+
+ if (!gpio_data)
+ return 0;
+
+ kpad->gc.ngpio = adp5588_build_gpiomap(kpad, pdata);
+ if (kpad->gc.ngpio == 0) {
+ dev_info(dev, "No unused gpios left to export\n");
+ return 0;
+ }
+
+ kpad->export_gpio = true;
+
+ kpad->gc.direction_input = adp5588_gpio_direction_input;
+ kpad->gc.direction_output = adp5588_gpio_direction_output;
+ kpad->gc.get = adp5588_gpio_get_value;
+ kpad->gc.set = adp5588_gpio_set_value;
+ kpad->gc.can_sleep = 1;
+
+ kpad->gc.base = gpio_data->gpio_start;
+ kpad->gc.label = kpad->client->name;
+ kpad->gc.owner = THIS_MODULE;
+
+ mutex_init(&kpad->gpio_lock);
+
+ error = gpiochip_add(&kpad->gc);
+ if (error) {
+ dev_err(dev, "gpiochip_add failed, err: %d\n", error);
+ return error;
+ }
+
+ for (i = 0; i <= ADP5588_BANK(ADP5588_MAXGPIO); i++) {
+ kpad->dat_out[i] = adp5588_read(kpad->client,
+ GPIO_DAT_OUT1 + i);
+ kpad->dir[i] = adp5588_read(kpad->client, GPIO_DIR1 + i);
+ }
+
+ if (gpio_data->setup) {
+ error = gpio_data->setup(kpad->client,
+ kpad->gc.base, kpad->gc.ngpio,
+ gpio_data->context);
+ if (error)
+ dev_warn(dev, "setup failed, %d\n", error);
+ }
+
+ return 0;
+}
+
+static void __devexit adp5588_gpio_remove(struct adp5588_kpad *kpad)
+{
+ struct device *dev = &kpad->client->dev;
+ const struct adp5588_kpad_platform_data *pdata = dev->platform_data;
+ const struct adp5588_gpio_platform_data *gpio_data = pdata->gpio_data;
+ int error;
+
+ if (!kpad->export_gpio)
+ return;
+
+ if (gpio_data->teardown) {
+ error = gpio_data->teardown(kpad->client,
+ kpad->gc.base, kpad->gc.ngpio,
+ gpio_data->context);
+ if (error)
+ dev_warn(dev, "teardown failed %d\n", error);
+ }
+
+ error = gpiochip_remove(&kpad->gc);
+ if (error)
+ dev_warn(dev, "gpiochip_remove failed %d\n", error);
+}
+#else
+static inline int adp5588_gpio_add(struct adp5588_kpad *kpad)
+{
+ return 0;
+}
+
+static inline void adp5588_gpio_remove(struct adp5588_kpad *kpad)
+{
+}
+#endif
+
+static void adp5588_report_events(struct adp5588_kpad *kpad, int ev_cnt)
+{
+ int i, j;
+
+ for (i = 0; i < ev_cnt; i++) {
+ int key = adp5588_read(kpad->client, Key_EVENTA + i);
+ int key_val = key & KEY_EV_MASK;
+
+ if (key_val >= GPI_PIN_BASE && key_val <= GPI_PIN_END) {
+ for (j = 0; j < kpad->gpimapsize; j++) {
+ if (key_val == kpad->gpimap[j].pin) {
+ input_report_switch(kpad->input,
+ kpad->gpimap[j].sw_evt,
+ key & KEY_EV_PRESSED);
+ break;
+ }
+ }
+ } else {
+ input_report_key(kpad->input,
+ kpad->keycode[key_val - 1],
+ key & KEY_EV_PRESSED);
+ }
+ }
+}
+
+static void adp5588_work(struct work_struct *work)
+{
+ struct adp5588_kpad *kpad = container_of(work,
+ struct adp5588_kpad, work.work);
+ struct i2c_client *client = kpad->client;
+ int status, ev_cnt;
+
+ status = adp5588_read(client, INT_STAT);
+
+ if (status & ADP5588_OVR_FLOW_INT) /* Unlikely and should never happen */
+ dev_err(&client->dev, "Event Overflow Error\n");
+
+ if (status & ADP5588_KE_INT) {
+ ev_cnt = adp5588_read(client, KEY_LCK_EC_STAT) & ADP5588_KEC;
+ if (ev_cnt) {
+ adp5588_report_events(kpad, ev_cnt);
+ input_sync(kpad->input);
+ }
+ }
+ adp5588_write(client, INT_STAT, status); /* Status is W1C */
+}
+
+static irqreturn_t adp5588_irq(int irq, void *handle)
+{
+ struct adp5588_kpad *kpad = handle;
+
+ /*
+ * use keventd context to read the event fifo registers
+ * Schedule readout at least 25ms after notification for
+ * REVID < 4
+ */
+
+ schedule_delayed_work(&kpad->work, kpad->delay);
+
+ return IRQ_HANDLED;
+}
+
+static int __devinit adp5588_setup(struct i2c_client *client)
+{
+ const struct adp5588_kpad_platform_data *pdata = client->dev.platform_data;
+ const struct adp5588_gpio_platform_data *gpio_data = pdata->gpio_data;
+ int i, ret;
+ unsigned char evt_mode1 = 0, evt_mode2 = 0, evt_mode3 = 0;
+
+ ret = adp5588_write(client, KP_GPIO1, KP_SEL(pdata->rows));
+ ret |= adp5588_write(client, KP_GPIO2, KP_SEL(pdata->cols) & 0xFF);
+ ret |= adp5588_write(client, KP_GPIO3, KP_SEL(pdata->cols) >> 8);
+
+ if (pdata->en_keylock) {
+ ret |= adp5588_write(client, UNLOCK1, pdata->unlock_key1);
+ ret |= adp5588_write(client, UNLOCK2, pdata->unlock_key2);
+ ret |= adp5588_write(client, KEY_LCK_EC_STAT, ADP5588_K_LCK_EN);
+ }
+
+ for (i = 0; i < KEYP_MAX_EVENT; i++)
+ ret |= adp5588_read(client, Key_EVENTA);
+
+ for (i = 0; i < pdata->gpimapsize; i++) {
+ unsigned short pin = pdata->gpimap[i].pin;
+
+ if (pin <= GPI_PIN_ROW_END) {
+ evt_mode1 |= (1 << (pin - GPI_PIN_ROW_BASE));
+ } else {
+ evt_mode2 |= ((1 << (pin - GPI_PIN_COL_BASE)) & 0xFF);
+ evt_mode3 |= ((1 << (pin - GPI_PIN_COL_BASE)) >> 8);
+ }
+ }
+
+ if (pdata->gpimapsize) {
+ ret |= adp5588_write(client, GPI_EM1, evt_mode1);
+ ret |= adp5588_write(client, GPI_EM2, evt_mode2);
+ ret |= adp5588_write(client, GPI_EM3, evt_mode3);
+ }
+
+ if (gpio_data) {
+ for (i = 0; i <= ADP5588_BANK(ADP5588_MAXGPIO); i++) {
+ int pull_mask = gpio_data->pullup_dis_mask;
+
+ ret |= adp5588_write(client, GPIO_PULL1 + i,
+ (pull_mask >> (8 * i)) & 0xFF);
+ }
+ }
+
+ ret |= adp5588_write(client, INT_STAT,
+ ADP5588_CMP2_INT | ADP5588_CMP1_INT |
+ ADP5588_OVR_FLOW_INT | ADP5588_K_LCK_INT |
+ ADP5588_GPI_INT | ADP5588_KE_INT); /* Status is W1C */
+
+ ret |= adp5588_write(client, CFG, ADP5588_INT_CFG |
+ ADP5588_OVR_FLOW_IEN |
+ ADP5588_KE_IEN);
+
+ if (ret < 0) {
+ dev_err(&client->dev, "Write Error\n");
+ return ret;
+ }
+
+ return 0;
+}
+
+static void __devinit adp5588_report_switch_state(struct adp5588_kpad *kpad)
+{
+ int gpi_stat1 = adp5588_read(kpad->client, GPIO_DAT_STAT1);
+ int gpi_stat2 = adp5588_read(kpad->client, GPIO_DAT_STAT2);
+ int gpi_stat3 = adp5588_read(kpad->client, GPIO_DAT_STAT3);
+ int gpi_stat_tmp, pin_loc;
+ int i;
+
+ for (i = 0; i < kpad->gpimapsize; i++) {
+ unsigned short pin = kpad->gpimap[i].pin;
+
+ if (pin <= GPI_PIN_ROW_END) {
+ gpi_stat_tmp = gpi_stat1;
+ pin_loc = pin - GPI_PIN_ROW_BASE;
+ } else if ((pin - GPI_PIN_COL_BASE) < 8) {
+ gpi_stat_tmp = gpi_stat2;
+ pin_loc = pin - GPI_PIN_COL_BASE;
+ } else {
+ gpi_stat_tmp = gpi_stat3;
+ pin_loc = pin - GPI_PIN_COL_BASE - 8;
+ }
+
+ if (gpi_stat_tmp < 0) {
+ dev_err(&kpad->client->dev,
+ "Can't read GPIO_DAT_STAT switch %d default to OFF\n",
+ pin);
+ gpi_stat_tmp = 0;
+ }
+
+ input_report_switch(kpad->input,
+ kpad->gpimap[i].sw_evt,
+ !(gpi_stat_tmp & (1 << pin_loc)));
+ }
+
+ input_sync(kpad->input);
+}
+
+
+static int __devinit adp5588_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct adp5588_kpad *kpad;
+ const struct adp5588_kpad_platform_data *pdata = client->dev.platform_data;
+ struct input_dev *input;
+ unsigned int revid;
+ int ret, i;
+ int error;
+
+ if (!i2c_check_functionality(client->adapter,
+ I2C_FUNC_SMBUS_BYTE_DATA)) {
+ dev_err(&client->dev, "SMBUS Byte Data not Supported\n");
+ return -EIO;
+ }
+
+ if (!pdata) {
+ dev_err(&client->dev, "no platform data?\n");
+ return -EINVAL;
+ }
+
+ if (!pdata->rows || !pdata->cols || !pdata->keymap) {
+ dev_err(&client->dev, "no rows, cols or keymap from pdata\n");
+ return -EINVAL;
+ }
+
+ if (pdata->keymapsize != ADP5588_KEYMAPSIZE) {
+ dev_err(&client->dev, "invalid keymapsize\n");
+ return -EINVAL;
+ }
+
+ if (!pdata->gpimap && pdata->gpimapsize) {
+ dev_err(&client->dev, "invalid gpimap from pdata\n");
+ return -EINVAL;
+ }
+
+ if (pdata->gpimapsize > ADP5588_GPIMAPSIZE_MAX) {
+ dev_err(&client->dev, "invalid gpimapsize\n");
+ return -EINVAL;
+ }
+
+ for (i = 0; i < pdata->gpimapsize; i++) {
+ unsigned short pin = pdata->gpimap[i].pin;
+
+ if (pin < GPI_PIN_BASE || pin > GPI_PIN_END) {
+ dev_err(&client->dev, "invalid gpi pin data\n");
+ return -EINVAL;
+ }
+
+ if (pin <= GPI_PIN_ROW_END) {
+ if (pin - GPI_PIN_ROW_BASE + 1 <= pdata->rows) {
+ dev_err(&client->dev, "invalid gpi row data\n");
+ return -EINVAL;
+ }
+ } else {
+ if (pin - GPI_PIN_COL_BASE + 1 <= pdata->cols) {
+ dev_err(&client->dev, "invalid gpi col data\n");
+ return -EINVAL;
+ }
+ }
+ }
+
+ if (!client->irq) {
+ dev_err(&client->dev, "no IRQ?\n");
+ return -EINVAL;
+ }
+
+ kpad = kzalloc(sizeof(*kpad), GFP_KERNEL);
+ input = input_allocate_device();
+ if (!kpad || !input) {
+ error = -ENOMEM;
+ goto err_free_mem;
+ }
+
+ kpad->client = client;
+ kpad->input = input;
+ INIT_DELAYED_WORK(&kpad->work, adp5588_work);
+
+ ret = adp5588_read(client, DEV_ID);
+ if (ret < 0) {
+ error = ret;
+ goto err_free_mem;
+ }
+
+ revid = (u8) ret & ADP5588_DEVICE_ID_MASK;
+ if (WA_DELAYED_READOUT_REVID(revid))
+ kpad->delay = msecs_to_jiffies(30);
+
+ input->name = client->name;
+ input->phys = "adp5588-keys/input0";
+ input->dev.parent = &client->dev;
+
+ input_set_drvdata(input, kpad);
+
+ input->id.bustype = BUS_I2C;
+ input->id.vendor = 0x0001;
+ input->id.product = 0x0001;
+ input->id.version = revid;
+
+ input->keycodesize = sizeof(kpad->keycode[0]);
+ input->keycodemax = pdata->keymapsize;
+ input->keycode = kpad->keycode;
+
+ memcpy(kpad->keycode, pdata->keymap,
+ pdata->keymapsize * input->keycodesize);
+
+ kpad->gpimap = pdata->gpimap;
+ kpad->gpimapsize = pdata->gpimapsize;
+
+ /* setup input device */
+ __set_bit(EV_KEY, input->evbit);
+
+ if (pdata->repeat)
+ __set_bit(EV_REP, input->evbit);
+
+ for (i = 0; i < input->keycodemax; i++)
+ __set_bit(kpad->keycode[i] & KEY_MAX, input->keybit);
+ __clear_bit(KEY_RESERVED, input->keybit);
+
+ if (kpad->gpimapsize)
+ __set_bit(EV_SW, input->evbit);
+ for (i = 0; i < kpad->gpimapsize; i++)
+ __set_bit(kpad->gpimap[i].sw_evt, input->swbit);
+
+ error = input_register_device(input);
+ if (error) {
+ dev_err(&client->dev, "unable to register input device\n");
+ goto err_free_mem;
+ }
+
+ error = request_irq(client->irq, adp5588_irq,
+ IRQF_TRIGGER_FALLING,
+ client->dev.driver->name, kpad);
+ if (error) {
+ dev_err(&client->dev, "irq %d busy?\n", client->irq);
+ goto err_unreg_dev;
+ }
+
+ error = adp5588_setup(client);
+ if (error)
+ goto err_free_irq;
+
+ if (kpad->gpimapsize)
+ adp5588_report_switch_state(kpad);
+
+ error = adp5588_gpio_add(kpad);
+ if (error)
+ goto err_free_irq;
+
+ device_init_wakeup(&client->dev, 1);
+ i2c_set_clientdata(client, kpad);
+
+ dev_info(&client->dev, "Rev.%d keypad, irq %d\n", revid, client->irq);
+ return 0;
+
+ err_free_irq:
+ free_irq(client->irq, kpad);
+ err_unreg_dev:
+ input_unregister_device(input);
+ input = NULL;
+ err_free_mem:
+ input_free_device(input);
+ kfree(kpad);
+
+ return error;
+}
+
+static int __devexit adp5588_remove(struct i2c_client *client)
+{
+ struct adp5588_kpad *kpad = i2c_get_clientdata(client);
+
+ adp5588_write(client, CFG, 0);
+ free_irq(client->irq, kpad);
+ cancel_delayed_work_sync(&kpad->work);
+ input_unregister_device(kpad->input);
+ adp5588_gpio_remove(kpad);
+ kfree(kpad);
+
+ return 0;
+}
+
+#ifdef CONFIG_PM
+static int adp5588_suspend(struct device *dev)
+{
+ struct adp5588_kpad *kpad = dev_get_drvdata(dev);
+ struct i2c_client *client = kpad->client;
+
+ disable_irq(client->irq);
+ cancel_delayed_work_sync(&kpad->work);
+
+ if (device_may_wakeup(&client->dev))
+ enable_irq_wake(client->irq);
+
+ return 0;
+}
+
+static int adp5588_resume(struct device *dev)
+{
+ struct adp5588_kpad *kpad = dev_get_drvdata(dev);
+ struct i2c_client *client = kpad->client;
+
+ if (device_may_wakeup(&client->dev))
+ disable_irq_wake(client->irq);
+
+ enable_irq(client->irq);
+
+ return 0;
+}
+
+static const struct dev_pm_ops adp5588_dev_pm_ops = {
+ .suspend = adp5588_suspend,
+ .resume = adp5588_resume,
+};
+#endif
+
+static const struct i2c_device_id adp5588_id[] = {
+ { "adp5588-keys", 0 },
+ { "adp5587-keys", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, adp5588_id);
+
+static struct i2c_driver adp5588_driver = {
+ .driver = {
+ .name = KBUILD_MODNAME,
+#ifdef CONFIG_PM
+ .pm = &adp5588_dev_pm_ops,
+#endif
+ },
+ .probe = adp5588_probe,
+ .remove = __devexit_p(adp5588_remove),
+ .id_table = adp5588_id,
+};
+
+static int __init adp5588_init(void)
+{
+ return i2c_add_driver(&adp5588_driver);
+}
+module_init(adp5588_init);
+
+static void __exit adp5588_exit(void)
+{
+ i2c_del_driver(&adp5588_driver);
+}
+module_exit(adp5588_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
+MODULE_DESCRIPTION("ADP5588/87 Keypad driver");
diff --git a/drivers/input/keyboard/adp5589-keys.c b/drivers/input/keyboard/adp5589-keys.c
new file mode 100644
index 0000000..02b5d53
--- /dev/null
+++ b/drivers/input/keyboard/adp5589-keys.c
@@ -0,0 +1,1125 @@
+/*
+ * Description: keypad driver for ADP5589, ADP5585
+ * I2C QWERTY Keypad and IO Expander
+ * Bugs: Enter bugs at http://blackfin.uclinux.org/
+ *
+ * Copyright (C) 2010-2011 Analog Devices Inc.
+ * Licensed under the GPL-2.
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/workqueue.h>
+#include <linux/errno.h>
+#include <linux/pm.h>
+#include <linux/platform_device.h>
+#include <linux/input.h>
+#include <linux/i2c.h>
+#include <linux/gpio.h>
+#include <linux/slab.h>
+
+#include <linux/input/adp5589.h>
+
+/* ADP5589/ADP5585 Common Registers */
+#define ADP5589_5_ID 0x00
+#define ADP5589_5_INT_STATUS 0x01
+#define ADP5589_5_STATUS 0x02
+#define ADP5589_5_FIFO_1 0x03
+#define ADP5589_5_FIFO_2 0x04
+#define ADP5589_5_FIFO_3 0x05
+#define ADP5589_5_FIFO_4 0x06
+#define ADP5589_5_FIFO_5 0x07
+#define ADP5589_5_FIFO_6 0x08
+#define ADP5589_5_FIFO_7 0x09
+#define ADP5589_5_FIFO_8 0x0A
+#define ADP5589_5_FIFO_9 0x0B
+#define ADP5589_5_FIFO_10 0x0C
+#define ADP5589_5_FIFO_11 0x0D
+#define ADP5589_5_FIFO_12 0x0E
+#define ADP5589_5_FIFO_13 0x0F
+#define ADP5589_5_FIFO_14 0x10
+#define ADP5589_5_FIFO_15 0x11
+#define ADP5589_5_FIFO_16 0x12
+#define ADP5589_5_GPI_INT_STAT_A 0x13
+#define ADP5589_5_GPI_INT_STAT_B 0x14
+
+/* ADP5589 Registers */
+#define ADP5589_GPI_INT_STAT_C 0x15
+#define ADP5589_GPI_STATUS_A 0x16
+#define ADP5589_GPI_STATUS_B 0x17
+#define ADP5589_GPI_STATUS_C 0x18
+#define ADP5589_RPULL_CONFIG_A 0x19
+#define ADP5589_RPULL_CONFIG_B 0x1A
+#define ADP5589_RPULL_CONFIG_C 0x1B
+#define ADP5589_RPULL_CONFIG_D 0x1C
+#define ADP5589_RPULL_CONFIG_E 0x1D
+#define ADP5589_GPI_INT_LEVEL_A 0x1E
+#define ADP5589_GPI_INT_LEVEL_B 0x1F
+#define ADP5589_GPI_INT_LEVEL_C 0x20
+#define ADP5589_GPI_EVENT_EN_A 0x21
+#define ADP5589_GPI_EVENT_EN_B 0x22
+#define ADP5589_GPI_EVENT_EN_C 0x23
+#define ADP5589_GPI_INTERRUPT_EN_A 0x24
+#define ADP5589_GPI_INTERRUPT_EN_B 0x25
+#define ADP5589_GPI_INTERRUPT_EN_C 0x26
+#define ADP5589_DEBOUNCE_DIS_A 0x27
+#define ADP5589_DEBOUNCE_DIS_B 0x28
+#define ADP5589_DEBOUNCE_DIS_C 0x29
+#define ADP5589_GPO_DATA_OUT_A 0x2A
+#define ADP5589_GPO_DATA_OUT_B 0x2B
+#define ADP5589_GPO_DATA_OUT_C 0x2C
+#define ADP5589_GPO_OUT_MODE_A 0x2D
+#define ADP5589_GPO_OUT_MODE_B 0x2E
+#define ADP5589_GPO_OUT_MODE_C 0x2F
+#define ADP5589_GPIO_DIRECTION_A 0x30
+#define ADP5589_GPIO_DIRECTION_B 0x31
+#define ADP5589_GPIO_DIRECTION_C 0x32
+#define ADP5589_UNLOCK1 0x33
+#define ADP5589_UNLOCK2 0x34
+#define ADP5589_EXT_LOCK_EVENT 0x35
+#define ADP5589_UNLOCK_TIMERS 0x36
+#define ADP5589_LOCK_CFG 0x37
+#define ADP5589_RESET1_EVENT_A 0x38
+#define ADP5589_RESET1_EVENT_B 0x39
+#define ADP5589_RESET1_EVENT_C 0x3A
+#define ADP5589_RESET2_EVENT_A 0x3B
+#define ADP5589_RESET2_EVENT_B 0x3C
+#define ADP5589_RESET_CFG 0x3D
+#define ADP5589_PWM_OFFT_LOW 0x3E
+#define ADP5589_PWM_OFFT_HIGH 0x3F
+#define ADP5589_PWM_ONT_LOW 0x40
+#define ADP5589_PWM_ONT_HIGH 0x41
+#define ADP5589_PWM_CFG 0x42
+#define ADP5589_CLOCK_DIV_CFG 0x43
+#define ADP5589_LOGIC_1_CFG 0x44
+#define ADP5589_LOGIC_2_CFG 0x45
+#define ADP5589_LOGIC_FF_CFG 0x46
+#define ADP5589_LOGIC_INT_EVENT_EN 0x47
+#define ADP5589_POLL_PTIME_CFG 0x48
+#define ADP5589_PIN_CONFIG_A 0x49
+#define ADP5589_PIN_CONFIG_B 0x4A
+#define ADP5589_PIN_CONFIG_C 0x4B
+#define ADP5589_PIN_CONFIG_D 0x4C
+#define ADP5589_GENERAL_CFG 0x4D
+#define ADP5589_INT_EN 0x4E
+
+/* ADP5585 Registers */
+#define ADP5585_GPI_STATUS_A 0x15
+#define ADP5585_GPI_STATUS_B 0x16
+#define ADP5585_RPULL_CONFIG_A 0x17
+#define ADP5585_RPULL_CONFIG_B 0x18
+#define ADP5585_RPULL_CONFIG_C 0x19
+#define ADP5585_RPULL_CONFIG_D 0x1A
+#define ADP5585_GPI_INT_LEVEL_A 0x1B
+#define ADP5585_GPI_INT_LEVEL_B 0x1C
+#define ADP5585_GPI_EVENT_EN_A 0x1D
+#define ADP5585_GPI_EVENT_EN_B 0x1E
+#define ADP5585_GPI_INTERRUPT_EN_A 0x1F
+#define ADP5585_GPI_INTERRUPT_EN_B 0x20
+#define ADP5585_DEBOUNCE_DIS_A 0x21
+#define ADP5585_DEBOUNCE_DIS_B 0x22
+#define ADP5585_GPO_DATA_OUT_A 0x23
+#define ADP5585_GPO_DATA_OUT_B 0x24
+#define ADP5585_GPO_OUT_MODE_A 0x25
+#define ADP5585_GPO_OUT_MODE_B 0x26
+#define ADP5585_GPIO_DIRECTION_A 0x27
+#define ADP5585_GPIO_DIRECTION_B 0x28
+#define ADP5585_RESET1_EVENT_A 0x29
+#define ADP5585_RESET1_EVENT_B 0x2A
+#define ADP5585_RESET1_EVENT_C 0x2B
+#define ADP5585_RESET2_EVENT_A 0x2C
+#define ADP5585_RESET2_EVENT_B 0x2D
+#define ADP5585_RESET_CFG 0x2E
+#define ADP5585_PWM_OFFT_LOW 0x2F
+#define ADP5585_PWM_OFFT_HIGH 0x30
+#define ADP5585_PWM_ONT_LOW 0x31
+#define ADP5585_PWM_ONT_HIGH 0x32
+#define ADP5585_PWM_CFG 0x33
+#define ADP5585_LOGIC_CFG 0x34
+#define ADP5585_LOGIC_FF_CFG 0x35
+#define ADP5585_LOGIC_INT_EVENT_EN 0x36
+#define ADP5585_POLL_PTIME_CFG 0x37
+#define ADP5585_PIN_CONFIG_A 0x38
+#define ADP5585_PIN_CONFIG_B 0x39
+#define ADP5585_PIN_CONFIG_D 0x3A
+#define ADP5585_GENERAL_CFG 0x3B
+#define ADP5585_INT_EN 0x3C
+
+/* ID Register */
+#define ADP5589_5_DEVICE_ID_MASK 0xF
+#define ADP5589_5_MAN_ID_MASK 0xF
+#define ADP5589_5_MAN_ID_SHIFT 4
+#define ADP5589_5_MAN_ID 0x02
+
+/* GENERAL_CFG Register */
+#define OSC_EN (1 << 7)
+#define CORE_CLK(x) (((x) & 0x3) << 5)
+#define LCK_TRK_LOGIC (1 << 4) /* ADP5589 only */
+#define LCK_TRK_GPI (1 << 3) /* ADP5589 only */
+#define INT_CFG (1 << 1)
+#define RST_CFG (1 << 0)
+
+/* INT_EN Register */
+#define LOGIC2_IEN (1 << 5) /* ADP5589 only */
+#define LOGIC1_IEN (1 << 4)
+#define LOCK_IEN (1 << 3) /* ADP5589 only */
+#define OVRFLOW_IEN (1 << 2)
+#define GPI_IEN (1 << 1)
+#define EVENT_IEN (1 << 0)
+
+/* Interrupt Status Register */
+#define LOGIC2_INT (1 << 5) /* ADP5589 only */
+#define LOGIC1_INT (1 << 4)
+#define LOCK_INT (1 << 3) /* ADP5589 only */
+#define OVRFLOW_INT (1 << 2)
+#define GPI_INT (1 << 1)
+#define EVENT_INT (1 << 0)
+
+/* STATUS Register */
+#define LOGIC2_STAT (1 << 7) /* ADP5589 only */
+#define LOGIC1_STAT (1 << 6)
+#define LOCK_STAT (1 << 5) /* ADP5589 only */
+#define KEC 0xF
+
+/* PIN_CONFIG_D Register */
+#define C4_EXTEND_CFG (1 << 6) /* RESET2 */
+#define R4_EXTEND_CFG (1 << 5) /* RESET1 */
+
+/* LOCK_CFG */
+#define LOCK_EN (1 << 0)
+
+#define PTIME_MASK 0x3
+#define LTIME_MASK 0x3 /* ADP5589 only */
+
+/* Key Event Register xy */
+#define KEY_EV_PRESSED (1 << 7)
+#define KEY_EV_MASK (0x7F)
+
+#define KEYP_MAX_EVENT 16
+#define ADP5589_MAXGPIO 19
+#define ADP5585_MAXGPIO 11 /* 10 on the ADP5585-01, 11 on ADP5585-02 */
+
+enum {
+ ADP5589,
+ ADP5585_01,
+ ADP5585_02
+};
+
+struct adp_constants {
+ u8 maxgpio;
+ u8 keymapsize;
+ u8 gpi_pin_row_base;
+ u8 gpi_pin_row_end;
+ u8 gpi_pin_col_base;
+ u8 gpi_pin_base;
+ u8 gpi_pin_end;
+ u8 gpimapsize_max;
+ u8 max_row_num;
+ u8 max_col_num;
+ u8 row_mask;
+ u8 col_mask;
+ u8 col_shift;
+ u8 c4_extend_cfg;
+ u8 (*bank) (u8 offset);
+ u8 (*bit) (u8 offset);
+ u8 (*reg) (u8 reg);
+};
+
+struct adp5589_kpad {
+ struct i2c_client *client;
+ struct input_dev *input;
+ const struct adp_constants *var;
+ unsigned short keycode[ADP5589_KEYMAPSIZE];
+ const struct adp5589_gpi_map *gpimap;
+ unsigned short gpimapsize;
+ unsigned extend_cfg;
+ bool is_adp5585;
+ bool adp5585_support_row5;
+#ifdef CONFIG_GPIOLIB
+ unsigned char gpiomap[ADP5589_MAXGPIO];
+ bool export_gpio;
+ struct gpio_chip gc;
+ struct mutex gpio_lock; /* Protect cached dir, dat_out */
+ u8 dat_out[3];
+ u8 dir[3];
+#endif
+};
+
+/*
+ * ADP5589 / ADP5585 derivative / variant handling
+ */
+
+
+/* ADP5589 */
+
+static unsigned char adp5589_bank(unsigned char offset)
+{
+ return offset >> 3;
+}
+
+static unsigned char adp5589_bit(unsigned char offset)
+{
+ return 1u << (offset & 0x7);
+}
+
+static unsigned char adp5589_reg(unsigned char reg)
+{
+ return reg;
+}
+
+static const struct adp_constants const_adp5589 = {
+ .maxgpio = ADP5589_MAXGPIO,
+ .keymapsize = ADP5589_KEYMAPSIZE,
+ .gpi_pin_row_base = ADP5589_GPI_PIN_ROW_BASE,
+ .gpi_pin_row_end = ADP5589_GPI_PIN_ROW_END,
+ .gpi_pin_col_base = ADP5589_GPI_PIN_COL_BASE,
+ .gpi_pin_base = ADP5589_GPI_PIN_BASE,
+ .gpi_pin_end = ADP5589_GPI_PIN_END,
+ .gpimapsize_max = ADP5589_GPIMAPSIZE_MAX,
+ .c4_extend_cfg = 12,
+ .max_row_num = ADP5589_MAX_ROW_NUM,
+ .max_col_num = ADP5589_MAX_COL_NUM,
+ .row_mask = ADP5589_ROW_MASK,
+ .col_mask = ADP5589_COL_MASK,
+ .col_shift = ADP5589_COL_SHIFT,
+ .bank = adp5589_bank,
+ .bit = adp5589_bit,
+ .reg = adp5589_reg,
+};
+
+/* ADP5585 */
+
+static unsigned char adp5585_bank(unsigned char offset)
+{
+ return offset > ADP5585_MAX_ROW_NUM;
+}
+
+static unsigned char adp5585_bit(unsigned char offset)
+{
+ return (offset > ADP5585_MAX_ROW_NUM) ?
+ 1u << (offset - ADP5585_COL_SHIFT) : 1u << offset;
+}
+
+static const unsigned char adp5585_reg_lut[] = {
+ [ADP5589_GPI_STATUS_A] = ADP5585_GPI_STATUS_A,
+ [ADP5589_GPI_STATUS_B] = ADP5585_GPI_STATUS_B,
+ [ADP5589_RPULL_CONFIG_A] = ADP5585_RPULL_CONFIG_A,
+ [ADP5589_RPULL_CONFIG_B] = ADP5585_RPULL_CONFIG_B,
+ [ADP5589_RPULL_CONFIG_C] = ADP5585_RPULL_CONFIG_C,
+ [ADP5589_RPULL_CONFIG_D] = ADP5585_RPULL_CONFIG_D,
+ [ADP5589_GPI_INT_LEVEL_A] = ADP5585_GPI_INT_LEVEL_A,
+ [ADP5589_GPI_INT_LEVEL_B] = ADP5585_GPI_INT_LEVEL_B,
+ [ADP5589_GPI_EVENT_EN_A] = ADP5585_GPI_EVENT_EN_A,
+ [ADP5589_GPI_EVENT_EN_B] = ADP5585_GPI_EVENT_EN_B,
+ [ADP5589_GPI_INTERRUPT_EN_A] = ADP5585_GPI_INTERRUPT_EN_A,
+ [ADP5589_GPI_INTERRUPT_EN_B] = ADP5585_GPI_INTERRUPT_EN_B,
+ [ADP5589_DEBOUNCE_DIS_A] = ADP5585_DEBOUNCE_DIS_A,
+ [ADP5589_DEBOUNCE_DIS_B] = ADP5585_DEBOUNCE_DIS_B,
+ [ADP5589_GPO_DATA_OUT_A] = ADP5585_GPO_DATA_OUT_A,
+ [ADP5589_GPO_DATA_OUT_B] = ADP5585_GPO_DATA_OUT_B,
+ [ADP5589_GPO_OUT_MODE_A] = ADP5585_GPO_OUT_MODE_A,
+ [ADP5589_GPO_OUT_MODE_B] = ADP5585_GPO_OUT_MODE_B,
+ [ADP5589_GPIO_DIRECTION_A] = ADP5585_GPIO_DIRECTION_A,
+ [ADP5589_GPIO_DIRECTION_B] = ADP5585_GPIO_DIRECTION_B,
+ [ADP5589_RESET1_EVENT_A] = ADP5585_RESET1_EVENT_A,
+ [ADP5589_RESET1_EVENT_B] = ADP5585_RESET1_EVENT_B,
+ [ADP5589_RESET1_EVENT_C] = ADP5585_RESET1_EVENT_C,
+ [ADP5589_RESET2_EVENT_A] = ADP5585_RESET2_EVENT_A,
+ [ADP5589_RESET2_EVENT_B] = ADP5585_RESET2_EVENT_B,
+ [ADP5589_RESET_CFG] = ADP5585_RESET_CFG,
+ [ADP5589_PWM_OFFT_LOW] = ADP5585_PWM_OFFT_LOW,
+ [ADP5589_PWM_OFFT_HIGH] = ADP5585_PWM_OFFT_HIGH,
+ [ADP5589_PWM_ONT_LOW] = ADP5585_PWM_ONT_LOW,
+ [ADP5589_PWM_ONT_HIGH] = ADP5585_PWM_ONT_HIGH,
+ [ADP5589_PWM_CFG] = ADP5585_PWM_CFG,
+ [ADP5589_LOGIC_1_CFG] = ADP5585_LOGIC_CFG,
+ [ADP5589_LOGIC_FF_CFG] = ADP5585_LOGIC_FF_CFG,
+ [ADP5589_LOGIC_INT_EVENT_EN] = ADP5585_LOGIC_INT_EVENT_EN,
+ [ADP5589_POLL_PTIME_CFG] = ADP5585_POLL_PTIME_CFG,
+ [ADP5589_PIN_CONFIG_A] = ADP5585_PIN_CONFIG_A,
+ [ADP5589_PIN_CONFIG_B] = ADP5585_PIN_CONFIG_B,
+ [ADP5589_PIN_CONFIG_D] = ADP5585_PIN_CONFIG_D,
+ [ADP5589_GENERAL_CFG] = ADP5585_GENERAL_CFG,
+ [ADP5589_INT_EN] = ADP5585_INT_EN,
+};
+
+static unsigned char adp5585_reg(unsigned char reg)
+{
+ return adp5585_reg_lut[reg];
+}
+
+static const struct adp_constants const_adp5585 = {
+ .maxgpio = ADP5585_MAXGPIO,
+ .keymapsize = ADP5585_KEYMAPSIZE,
+ .gpi_pin_row_base = ADP5585_GPI_PIN_ROW_BASE,
+ .gpi_pin_row_end = ADP5585_GPI_PIN_ROW_END,
+ .gpi_pin_col_base = ADP5585_GPI_PIN_COL_BASE,
+ .gpi_pin_base = ADP5585_GPI_PIN_BASE,
+ .gpi_pin_end = ADP5585_GPI_PIN_END,
+ .gpimapsize_max = ADP5585_GPIMAPSIZE_MAX,
+ .c4_extend_cfg = 10,
+ .max_row_num = ADP5585_MAX_ROW_NUM,
+ .max_col_num = ADP5585_MAX_COL_NUM,
+ .row_mask = ADP5585_ROW_MASK,
+ .col_mask = ADP5585_COL_MASK,
+ .col_shift = ADP5585_COL_SHIFT,
+ .bank = adp5585_bank,
+ .bit = adp5585_bit,
+ .reg = adp5585_reg,
+};
+
+static int adp5589_read(struct i2c_client *client, u8 reg)
+{
+ int ret = i2c_smbus_read_byte_data(client, reg);
+
+ if (ret < 0)
+ dev_err(&client->dev, "Read Error\n");
+
+ return ret;
+}
+
+static int adp5589_write(struct i2c_client *client, u8 reg, u8 val)
+{
+ return i2c_smbus_write_byte_data(client, reg, val);
+}
+
+#ifdef CONFIG_GPIOLIB
+static int adp5589_gpio_get_value(struct gpio_chip *chip, unsigned off)
+{
+ struct adp5589_kpad *kpad = container_of(chip, struct adp5589_kpad, gc);
+ unsigned int bank = kpad->var->bank(kpad->gpiomap[off]);
+ unsigned int bit = kpad->var->bit(kpad->gpiomap[off]);
+
+ return !!(adp5589_read(kpad->client,
+ kpad->var->reg(ADP5589_GPI_STATUS_A) + bank) &
+ bit);
+}
+
+static void adp5589_gpio_set_value(struct gpio_chip *chip,
+ unsigned off, int val)
+{
+ struct adp5589_kpad *kpad = container_of(chip, struct adp5589_kpad, gc);
+ unsigned int bank = kpad->var->bank(kpad->gpiomap[off]);
+ unsigned int bit = kpad->var->bit(kpad->gpiomap[off]);
+
+ mutex_lock(&kpad->gpio_lock);
+
+ if (val)
+ kpad->dat_out[bank] |= bit;
+ else
+ kpad->dat_out[bank] &= ~bit;
+
+ adp5589_write(kpad->client, kpad->var->reg(ADP5589_GPO_DATA_OUT_A) +
+ bank, kpad->dat_out[bank]);
+
+ mutex_unlock(&kpad->gpio_lock);
+}
+
+static int adp5589_gpio_direction_input(struct gpio_chip *chip, unsigned off)
+{
+ struct adp5589_kpad *kpad = container_of(chip, struct adp5589_kpad, gc);
+ unsigned int bank = kpad->var->bank(kpad->gpiomap[off]);
+ unsigned int bit = kpad->var->bit(kpad->gpiomap[off]);
+ int ret;
+
+ mutex_lock(&kpad->gpio_lock);
+
+ kpad->dir[bank] &= ~bit;
+ ret = adp5589_write(kpad->client,
+ kpad->var->reg(ADP5589_GPIO_DIRECTION_A) + bank,
+ kpad->dir[bank]);
+
+ mutex_unlock(&kpad->gpio_lock);
+
+ return ret;
+}
+
+static int adp5589_gpio_direction_output(struct gpio_chip *chip,
+ unsigned off, int val)
+{
+ struct adp5589_kpad *kpad = container_of(chip, struct adp5589_kpad, gc);
+ unsigned int bank = kpad->var->bank(kpad->gpiomap[off]);
+ unsigned int bit = kpad->var->bit(kpad->gpiomap[off]);
+ int ret;
+
+ mutex_lock(&kpad->gpio_lock);
+
+ kpad->dir[bank] |= bit;
+
+ if (val)
+ kpad->dat_out[bank] |= bit;
+ else
+ kpad->dat_out[bank] &= ~bit;
+
+ ret = adp5589_write(kpad->client, kpad->var->reg(ADP5589_GPO_DATA_OUT_A)
+ + bank, kpad->dat_out[bank]);
+ ret |= adp5589_write(kpad->client,
+ kpad->var->reg(ADP5589_GPIO_DIRECTION_A) + bank,
+ kpad->dir[bank]);
+
+ mutex_unlock(&kpad->gpio_lock);
+
+ return ret;
+}
+
+static int __devinit adp5589_build_gpiomap(struct adp5589_kpad *kpad,
+ const struct adp5589_kpad_platform_data *pdata)
+{
+ bool pin_used[ADP5589_MAXGPIO];
+ int n_unused = 0;
+ int i;
+
+ memset(pin_used, false, sizeof(pin_used));
+
+ for (i = 0; i < kpad->var->maxgpio; i++)
+ if (pdata->keypad_en_mask & (1 << i))
+ pin_used[i] = true;
+
+ for (i = 0; i < kpad->gpimapsize; i++)
+ pin_used[kpad->gpimap[i].pin - kpad->var->gpi_pin_base] = true;
+
+ if (kpad->extend_cfg & R4_EXTEND_CFG)
+ pin_used[4] = true;
+
+ if (kpad->extend_cfg & C4_EXTEND_CFG)
+ pin_used[kpad->var->c4_extend_cfg] = true;
+
+ if (!kpad->adp5585_support_row5)
+ pin_used[5] = true;
+
+ for (i = 0; i < kpad->var->maxgpio; i++)
+ if (!pin_used[i])
+ kpad->gpiomap[n_unused++] = i;
+
+ return n_unused;
+}
+
+static int __devinit adp5589_gpio_add(struct adp5589_kpad *kpad)
+{
+ struct device *dev = &kpad->client->dev;
+ const struct adp5589_kpad_platform_data *pdata = dev->platform_data;
+ const struct adp5589_gpio_platform_data *gpio_data = pdata->gpio_data;
+ int i, error;
+
+ if (!gpio_data)
+ return 0;
+
+ kpad->gc.ngpio = adp5589_build_gpiomap(kpad, pdata);
+ if (kpad->gc.ngpio == 0) {
+ dev_info(dev, "No unused gpios left to export\n");
+ return 0;
+ }
+
+ kpad->export_gpio = true;
+
+ kpad->gc.direction_input = adp5589_gpio_direction_input;
+ kpad->gc.direction_output = adp5589_gpio_direction_output;
+ kpad->gc.get = adp5589_gpio_get_value;
+ kpad->gc.set = adp5589_gpio_set_value;
+ kpad->gc.can_sleep = 1;
+
+ kpad->gc.base = gpio_data->gpio_start;
+ kpad->gc.label = kpad->client->name;
+ kpad->gc.owner = THIS_MODULE;
+
+ mutex_init(&kpad->gpio_lock);
+
+ error = gpiochip_add(&kpad->gc);
+ if (error) {
+ dev_err(dev, "gpiochip_add failed, err: %d\n", error);
+ return error;
+ }
+
+ for (i = 0; i <= kpad->var->bank(kpad->var->maxgpio); i++) {
+ kpad->dat_out[i] = adp5589_read(kpad->client, kpad->var->reg(
+ ADP5589_GPO_DATA_OUT_A) + i);
+ kpad->dir[i] = adp5589_read(kpad->client, kpad->var->reg(
+ ADP5589_GPIO_DIRECTION_A) + i);
+ }
+
+ if (gpio_data->setup) {
+ error = gpio_data->setup(kpad->client,
+ kpad->gc.base, kpad->gc.ngpio,
+ gpio_data->context);
+ if (error)
+ dev_warn(dev, "setup failed, %d\n", error);
+ }
+
+ return 0;
+}
+
+static void __devexit adp5589_gpio_remove(struct adp5589_kpad *kpad)
+{
+ struct device *dev = &kpad->client->dev;
+ const struct adp5589_kpad_platform_data *pdata = dev->platform_data;
+ const struct adp5589_gpio_platform_data *gpio_data = pdata->gpio_data;
+ int error;
+
+ if (!kpad->export_gpio)
+ return;
+
+ if (gpio_data->teardown) {
+ error = gpio_data->teardown(kpad->client,
+ kpad->gc.base, kpad->gc.ngpio,
+ gpio_data->context);
+ if (error)
+ dev_warn(dev, "teardown failed %d\n", error);
+ }
+
+ error = gpiochip_remove(&kpad->gc);
+ if (error)
+ dev_warn(dev, "gpiochip_remove failed %d\n", error);
+}
+#else
+static inline int adp5589_gpio_add(struct adp5589_kpad *kpad)
+{
+ return 0;
+}
+
+static inline void adp5589_gpio_remove(struct adp5589_kpad *kpad)
+{
+}
+#endif
+
+static void adp5589_report_switches(struct adp5589_kpad *kpad,
+ int key, int key_val)
+{
+ int i;
+
+ for (i = 0; i < kpad->gpimapsize; i++) {
+ if (key_val == kpad->gpimap[i].pin) {
+ input_report_switch(kpad->input,
+ kpad->gpimap[i].sw_evt,
+ key & KEY_EV_PRESSED);
+ break;
+ }
+ }
+}
+
+static void adp5589_report_events(struct adp5589_kpad *kpad, int ev_cnt)
+{
+ int i;
+
+ for (i = 0; i < ev_cnt; i++) {
+ int key = adp5589_read(kpad->client, ADP5589_5_FIFO_1 + i);
+ int key_val = key & KEY_EV_MASK;
+
+ if (key_val >= kpad->var->gpi_pin_base &&
+ key_val <= kpad->var->gpi_pin_end) {
+ adp5589_report_switches(kpad, key, key_val);
+ } else {
+ input_report_key(kpad->input,
+ kpad->keycode[key_val - 1],
+ key & KEY_EV_PRESSED);
+ }
+ }
+}
+
+static irqreturn_t adp5589_irq(int irq, void *handle)
+{
+ struct adp5589_kpad *kpad = handle;
+ struct i2c_client *client = kpad->client;
+ int status, ev_cnt;
+
+ status = adp5589_read(client, ADP5589_5_INT_STATUS);
+
+ if (status & OVRFLOW_INT) /* Unlikely and should never happen */
+ dev_err(&client->dev, "Event Overflow Error\n");
+
+ if (status & EVENT_INT) {
+ ev_cnt = adp5589_read(client, ADP5589_5_STATUS) & KEC;
+ if (ev_cnt) {
+ adp5589_report_events(kpad, ev_cnt);
+ input_sync(kpad->input);
+ }
+ }
+
+ adp5589_write(client, ADP5589_5_INT_STATUS, status); /* Status is W1C */
+
+ return IRQ_HANDLED;
+}
+
+static int __devinit adp5589_get_evcode(struct adp5589_kpad *kpad,
+ unsigned short key)
+{
+ int i;
+
+ for (i = 0; i < kpad->var->keymapsize; i++)
+ if (key == kpad->keycode[i])
+ return (i + 1) | KEY_EV_PRESSED;
+
+ dev_err(&kpad->client->dev, "RESET/UNLOCK key not in keycode map\n");
+
+ return -EINVAL;
+}
+
+static int __devinit adp5589_setup(struct adp5589_kpad *kpad)
+{
+ struct i2c_client *client = kpad->client;
+ const struct adp5589_kpad_platform_data *pdata =
+ client->dev.platform_data;
+ u8 (*reg) (u8) = kpad->var->reg;
+ unsigned char evt_mode1 = 0, evt_mode2 = 0, evt_mode3 = 0;
+ unsigned char pull_mask = 0;
+ int i, ret;
+
+ ret = adp5589_write(client, reg(ADP5589_PIN_CONFIG_A),
+ pdata->keypad_en_mask & kpad->var->row_mask);
+ ret |= adp5589_write(client, reg(ADP5589_PIN_CONFIG_B),
+ (pdata->keypad_en_mask >> kpad->var->col_shift) &
+ kpad->var->col_mask);
+
+ if (!kpad->is_adp5585)
+ ret |= adp5589_write(client, ADP5589_PIN_CONFIG_C,
+ (pdata->keypad_en_mask >> 16) & 0xFF);
+
+ if (!kpad->is_adp5585 && pdata->en_keylock) {
+ ret |= adp5589_write(client, ADP5589_UNLOCK1,
+ pdata->unlock_key1);
+ ret |= adp5589_write(client, ADP5589_UNLOCK2,
+ pdata->unlock_key2);
+ ret |= adp5589_write(client, ADP5589_UNLOCK_TIMERS,
+ pdata->unlock_timer & LTIME_MASK);
+ ret |= adp5589_write(client, ADP5589_LOCK_CFG, LOCK_EN);
+ }
+
+ for (i = 0; i < KEYP_MAX_EVENT; i++)
+ ret |= adp5589_read(client, ADP5589_5_FIFO_1 + i);
+
+ for (i = 0; i < pdata->gpimapsize; i++) {
+ unsigned short pin = pdata->gpimap[i].pin;
+
+ if (pin <= kpad->var->gpi_pin_row_end) {
+ evt_mode1 |= (1 << (pin - kpad->var->gpi_pin_row_base));
+ } else {
+ evt_mode2 |=
+ ((1 << (pin - kpad->var->gpi_pin_col_base)) & 0xFF);
+ if (!kpad->is_adp5585)
+ evt_mode3 |= ((1 << (pin -
+ kpad->var->gpi_pin_col_base)) >> 8);
+ }
+ }
+
+ if (pdata->gpimapsize) {
+ ret |= adp5589_write(client, reg(ADP5589_GPI_EVENT_EN_A),
+ evt_mode1);
+ ret |= adp5589_write(client, reg(ADP5589_GPI_EVENT_EN_B),
+ evt_mode2);
+ if (!kpad->is_adp5585)
+ ret |= adp5589_write(client,
+ reg(ADP5589_GPI_EVENT_EN_C),
+ evt_mode3);
+ }
+
+ if (pdata->pull_dis_mask & pdata->pullup_en_100k &
+ pdata->pullup_en_300k & pdata->pulldown_en_300k)
+ dev_warn(&client->dev, "Conflicting pull resistor config\n");
+
+ for (i = 0; i <= kpad->var->max_row_num; i++) {
+ unsigned val = 0, bit = (1 << i);
+ if (pdata->pullup_en_300k & bit)
+ val = 0;
+ else if (pdata->pulldown_en_300k & bit)
+ val = 1;
+ else if (pdata->pullup_en_100k & bit)
+ val = 2;
+ else if (pdata->pull_dis_mask & bit)
+ val = 3;
+
+ pull_mask |= val << (2 * (i & 0x3));
+
+ if (i == 3 || i == kpad->var->max_row_num) {
+ ret |= adp5589_write(client, reg(ADP5585_RPULL_CONFIG_A)
+ + (i >> 2), pull_mask);
+ pull_mask = 0;
+ }
+ }
+
+ for (i = 0; i <= kpad->var->max_col_num; i++) {
+ unsigned val = 0, bit = 1 << (i + kpad->var->col_shift);
+ if (pdata->pullup_en_300k & bit)
+ val = 0;
+ else if (pdata->pulldown_en_300k & bit)
+ val = 1;
+ else if (pdata->pullup_en_100k & bit)
+ val = 2;
+ else if (pdata->pull_dis_mask & bit)
+ val = 3;
+
+ pull_mask |= val << (2 * (i & 0x3));
+
+ if (i == 3 || i == kpad->var->max_col_num) {
+ ret |= adp5589_write(client,
+ reg(ADP5585_RPULL_CONFIG_C) +
+ (i >> 2), pull_mask);
+ pull_mask = 0;
+ }
+ }
+
+ if (pdata->reset1_key_1 && pdata->reset1_key_2 && pdata->reset1_key_3) {
+ ret |= adp5589_write(client, reg(ADP5589_RESET1_EVENT_A),
+ adp5589_get_evcode(kpad,
+ pdata->reset1_key_1));
+ ret |= adp5589_write(client, reg(ADP5589_RESET1_EVENT_B),
+ adp5589_get_evcode(kpad,
+ pdata->reset1_key_2));
+ ret |= adp5589_write(client, reg(ADP5589_RESET1_EVENT_C),
+ adp5589_get_evcode(kpad,
+ pdata->reset1_key_3));
+ kpad->extend_cfg |= R4_EXTEND_CFG;
+ }
+
+ if (pdata->reset2_key_1 && pdata->reset2_key_2) {
+ ret |= adp5589_write(client, reg(ADP5589_RESET2_EVENT_A),
+ adp5589_get_evcode(kpad,
+ pdata->reset2_key_1));
+ ret |= adp5589_write(client, reg(ADP5589_RESET2_EVENT_B),
+ adp5589_get_evcode(kpad,
+ pdata->reset2_key_2));
+ kpad->extend_cfg |= C4_EXTEND_CFG;
+ }
+
+ if (kpad->extend_cfg) {
+ ret |= adp5589_write(client, reg(ADP5589_RESET_CFG),
+ pdata->reset_cfg);
+ ret |= adp5589_write(client, reg(ADP5589_PIN_CONFIG_D),
+ kpad->extend_cfg);
+ }
+
+ ret |= adp5589_write(client, reg(ADP5589_DEBOUNCE_DIS_A),
+ pdata->debounce_dis_mask & kpad->var->row_mask);
+
+ ret |= adp5589_write(client, reg(ADP5589_DEBOUNCE_DIS_B),
+ (pdata->debounce_dis_mask >> kpad->var->col_shift)
+ & kpad->var->col_mask);
+
+ if (!kpad->is_adp5585)
+ ret |= adp5589_write(client, reg(ADP5589_DEBOUNCE_DIS_C),
+ (pdata->debounce_dis_mask >> 16) & 0xFF);
+
+ ret |= adp5589_write(client, reg(ADP5589_POLL_PTIME_CFG),
+ pdata->scan_cycle_time & PTIME_MASK);
+ ret |= adp5589_write(client, ADP5589_5_INT_STATUS,
+ (kpad->is_adp5585 ? 0 : LOGIC2_INT) |
+ LOGIC1_INT | OVRFLOW_INT |
+ (kpad->is_adp5585 ? 0 : LOCK_INT) |
+ GPI_INT | EVENT_INT); /* Status is W1C */
+
+ ret |= adp5589_write(client, reg(ADP5589_GENERAL_CFG),
+ INT_CFG | OSC_EN | CORE_CLK(3));
+ ret |= adp5589_write(client, reg(ADP5589_INT_EN),
+ OVRFLOW_IEN | GPI_IEN | EVENT_IEN);
+
+ if (ret < 0) {
+ dev_err(&client->dev, "Write Error\n");
+ return ret;
+ }
+
+ return 0;
+}
+
+static void __devinit adp5589_report_switch_state(struct adp5589_kpad *kpad)
+{
+ int gpi_stat_tmp, pin_loc;
+ int i;
+ int gpi_stat1 = adp5589_read(kpad->client,
+ kpad->var->reg(ADP5589_GPI_STATUS_A));
+ int gpi_stat2 = adp5589_read(kpad->client,
+ kpad->var->reg(ADP5589_GPI_STATUS_B));
+ int gpi_stat3 = !kpad->is_adp5585 ?
+ adp5589_read(kpad->client, ADP5589_GPI_STATUS_C) : 0;
+
+ for (i = 0; i < kpad->gpimapsize; i++) {
+ unsigned short pin = kpad->gpimap[i].pin;
+
+ if (pin <= kpad->var->gpi_pin_row_end) {
+ gpi_stat_tmp = gpi_stat1;
+ pin_loc = pin - kpad->var->gpi_pin_row_base;
+ } else if ((pin - kpad->var->gpi_pin_col_base) < 8) {
+ gpi_stat_tmp = gpi_stat2;
+ pin_loc = pin - kpad->var->gpi_pin_col_base;
+ } else {
+ gpi_stat_tmp = gpi_stat3;
+ pin_loc = pin - kpad->var->gpi_pin_col_base - 8;
+ }
+
+ if (gpi_stat_tmp < 0) {
+ dev_err(&kpad->client->dev,
+ "Can't read GPIO_DAT_STAT switch %d, default to OFF\n",
+ pin);
+ gpi_stat_tmp = 0;
+ }
+
+ input_report_switch(kpad->input,
+ kpad->gpimap[i].sw_evt,
+ !(gpi_stat_tmp & (1 << pin_loc)));
+ }
+
+ input_sync(kpad->input);
+}
+
+static int __devinit adp5589_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct adp5589_kpad *kpad;
+ const struct adp5589_kpad_platform_data *pdata =
+ client->dev.platform_data;
+ struct input_dev *input;
+ unsigned int revid;
+ int ret, i;
+ int error;
+
+ if (!i2c_check_functionality(client->adapter,
+ I2C_FUNC_SMBUS_BYTE_DATA)) {
+ dev_err(&client->dev, "SMBUS Byte Data not Supported\n");
+ return -EIO;
+ }
+
+ if (!pdata) {
+ dev_err(&client->dev, "no platform data?\n");
+ return -EINVAL;
+ }
+
+ kpad = kzalloc(sizeof(*kpad), GFP_KERNEL);
+ if (!kpad)
+ return -ENOMEM;
+
+ switch (id->driver_data) {
+ case ADP5585_02:
+ kpad->adp5585_support_row5 = true;
+ case ADP5585_01:
+ kpad->is_adp5585 = true;
+ kpad->var = &const_adp5585;
+ break;
+ case ADP5589:
+ kpad->var = &const_adp5589;
+ break;
+ }
+
+ if (!((pdata->keypad_en_mask & kpad->var->row_mask) &&
+ (pdata->keypad_en_mask >> kpad->var->col_shift)) ||
+ !pdata->keymap) {
+ dev_err(&client->dev, "no rows, cols or keymap from pdata\n");
+ error = -EINVAL;
+ goto err_free_mem;
+ }
+
+ if (pdata->keymapsize != kpad->var->keymapsize) {
+ dev_err(&client->dev, "invalid keymapsize\n");
+ error = -EINVAL;
+ goto err_free_mem;
+ }
+
+ if (!pdata->gpimap && pdata->gpimapsize) {
+ dev_err(&client->dev, "invalid gpimap from pdata\n");
+ error = -EINVAL;
+ goto err_free_mem;
+ }
+
+ if (pdata->gpimapsize > kpad->var->gpimapsize_max) {
+ dev_err(&client->dev, "invalid gpimapsize\n");
+ error = -EINVAL;
+ goto err_free_mem;
+ }
+
+ for (i = 0; i < pdata->gpimapsize; i++) {
+ unsigned short pin = pdata->gpimap[i].pin;
+
+ if (pin < kpad->var->gpi_pin_base ||
+ pin > kpad->var->gpi_pin_end) {
+ dev_err(&client->dev, "invalid gpi pin data\n");
+ error = -EINVAL;
+ goto err_free_mem;
+ }
+
+ if ((1 << (pin - kpad->var->gpi_pin_row_base)) &
+ pdata->keypad_en_mask) {
+ dev_err(&client->dev, "invalid gpi row/col data\n");
+ error = -EINVAL;
+ goto err_free_mem;
+ }
+ }
+
+ if (!client->irq) {
+ dev_err(&client->dev, "no IRQ?\n");
+ error = -EINVAL;
+ goto err_free_mem;
+ }
+
+ input = input_allocate_device();
+ if (!input) {
+ error = -ENOMEM;
+ goto err_free_mem;
+ }
+
+ kpad->client = client;
+ kpad->input = input;
+
+ ret = adp5589_read(client, ADP5589_5_ID);
+ if (ret < 0) {
+ error = ret;
+ goto err_free_input;
+ }
+
+ revid = (u8) ret & ADP5589_5_DEVICE_ID_MASK;
+
+ input->name = client->name;
+ input->phys = "adp5589-keys/input0";
+ input->dev.parent = &client->dev;
+
+ input_set_drvdata(input, kpad);
+
+ input->id.bustype = BUS_I2C;
+ input->id.vendor = 0x0001;
+ input->id.product = 0x0001;
+ input->id.version = revid;
+
+ input->keycodesize = sizeof(kpad->keycode[0]);
+ input->keycodemax = pdata->keymapsize;
+ input->keycode = kpad->keycode;
+
+ memcpy(kpad->keycode, pdata->keymap,
+ pdata->keymapsize * input->keycodesize);
+
+ kpad->gpimap = pdata->gpimap;
+ kpad->gpimapsize = pdata->gpimapsize;
+
+ /* setup input device */
+ __set_bit(EV_KEY, input->evbit);
+
+ if (pdata->repeat)
+ __set_bit(EV_REP, input->evbit);
+
+ for (i = 0; i < input->keycodemax; i++)
+ __set_bit(kpad->keycode[i] & KEY_MAX, input->keybit);
+ __clear_bit(KEY_RESERVED, input->keybit);
+
+ if (kpad->gpimapsize)
+ __set_bit(EV_SW, input->evbit);
+ for (i = 0; i < kpad->gpimapsize; i++)
+ __set_bit(kpad->gpimap[i].sw_evt, input->swbit);
+
+ error = input_register_device(input);
+ if (error) {
+ dev_err(&client->dev, "unable to register input device\n");
+ goto err_free_input;
+ }
+
+ error = request_threaded_irq(client->irq, NULL, adp5589_irq,
+ IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
+ client->dev.driver->name, kpad);
+ if (error) {
+ dev_err(&client->dev, "irq %d busy?\n", client->irq);
+ goto err_unreg_dev;
+ }
+
+ error = adp5589_setup(kpad);
+ if (error)
+ goto err_free_irq;
+
+ if (kpad->gpimapsize)
+ adp5589_report_switch_state(kpad);
+
+ error = adp5589_gpio_add(kpad);
+ if (error)
+ goto err_free_irq;
+
+ device_init_wakeup(&client->dev, 1);
+ i2c_set_clientdata(client, kpad);
+
+ dev_info(&client->dev, "Rev.%d keypad, irq %d\n", revid, client->irq);
+ return 0;
+
+err_free_irq:
+ free_irq(client->irq, kpad);
+err_unreg_dev:
+ input_unregister_device(input);
+ input = NULL;
+err_free_input:
+ input_free_device(input);
+err_free_mem:
+ kfree(kpad);
+
+ return error;
+}
+
+static int __devexit adp5589_remove(struct i2c_client *client)
+{
+ struct adp5589_kpad *kpad = i2c_get_clientdata(client);
+
+ adp5589_write(client, kpad->var->reg(ADP5589_GENERAL_CFG), 0);
+ free_irq(client->irq, kpad);
+ input_unregister_device(kpad->input);
+ adp5589_gpio_remove(kpad);
+ kfree(kpad);
+
+ return 0;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int adp5589_suspend(struct device *dev)
+{
+ struct adp5589_kpad *kpad = dev_get_drvdata(dev);
+ struct i2c_client *client = kpad->client;
+
+ disable_irq(client->irq);
+
+ if (device_may_wakeup(&client->dev))
+ enable_irq_wake(client->irq);
+
+ return 0;
+}
+
+static int adp5589_resume(struct device *dev)
+{
+ struct adp5589_kpad *kpad = dev_get_drvdata(dev);
+ struct i2c_client *client = kpad->client;
+
+ if (device_may_wakeup(&client->dev))
+ disable_irq_wake(client->irq);
+
+ enable_irq(client->irq);
+
+ return 0;
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(adp5589_dev_pm_ops, adp5589_suspend, adp5589_resume);
+
+static const struct i2c_device_id adp5589_id[] = {
+ {"adp5589-keys", ADP5589},
+ {"adp5585-keys", ADP5585_01},
+ {"adp5585-02-keys", ADP5585_02}, /* Adds ROW5 to ADP5585 */
+ {}
+};
+
+MODULE_DEVICE_TABLE(i2c, adp5589_id);
+
+static struct i2c_driver adp5589_driver = {
+ .driver = {
+ .name = KBUILD_MODNAME,
+ .owner = THIS_MODULE,
+ .pm = &adp5589_dev_pm_ops,
+ },
+ .probe = adp5589_probe,
+ .remove = __devexit_p(adp5589_remove),
+ .id_table = adp5589_id,
+};
+
+static int __init adp5589_init(void)
+{
+ return i2c_add_driver(&adp5589_driver);
+}
+module_init(adp5589_init);
+
+static void __exit adp5589_exit(void)
+{
+ i2c_del_driver(&adp5589_driver);
+}
+module_exit(adp5589_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
+MODULE_DESCRIPTION("ADP5589/ADP5585 Keypad driver");
diff --git a/drivers/input/keyboard/amikbd.c b/drivers/input/keyboard/amikbd.c
new file mode 100644
index 0000000..79172af
--- /dev/null
+++ b/drivers/input/keyboard/amikbd.c
@@ -0,0 +1,277 @@
+/*
+ * Copyright (c) 2000-2001 Vojtech Pavlik
+ *
+ * Based on the work of:
+ * Hamish Macdonald
+ */
+
+/*
+ * Amiga keyboard driver for Linux/m68k
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * Should you need to contact me, the author, you can do so either by
+ * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
+ * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/input.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <linux/keyboard.h>
+#include <linux/platform_device.h>
+
+#include <asm/amigaints.h>
+#include <asm/amigahw.h>
+#include <asm/irq.h>
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
+MODULE_DESCRIPTION("Amiga keyboard driver");
+MODULE_LICENSE("GPL");
+
+static unsigned char amikbd_keycode[0x78] __initdata = {
+ [0] = KEY_GRAVE,
+ [1] = KEY_1,
+ [2] = KEY_2,
+ [3] = KEY_3,
+ [4] = KEY_4,
+ [5] = KEY_5,
+ [6] = KEY_6,
+ [7] = KEY_7,
+ [8] = KEY_8,
+ [9] = KEY_9,
+ [10] = KEY_0,
+ [11] = KEY_MINUS,
+ [12] = KEY_EQUAL,
+ [13] = KEY_BACKSLASH,
+ [15] = KEY_KP0,
+ [16] = KEY_Q,
+ [17] = KEY_W,
+ [18] = KEY_E,
+ [19] = KEY_R,
+ [20] = KEY_T,
+ [21] = KEY_Y,
+ [22] = KEY_U,
+ [23] = KEY_I,
+ [24] = KEY_O,
+ [25] = KEY_P,
+ [26] = KEY_LEFTBRACE,
+ [27] = KEY_RIGHTBRACE,
+ [29] = KEY_KP1,
+ [30] = KEY_KP2,
+ [31] = KEY_KP3,
+ [32] = KEY_A,
+ [33] = KEY_S,
+ [34] = KEY_D,
+ [35] = KEY_F,
+ [36] = KEY_G,
+ [37] = KEY_H,
+ [38] = KEY_J,
+ [39] = KEY_K,
+ [40] = KEY_L,
+ [41] = KEY_SEMICOLON,
+ [42] = KEY_APOSTROPHE,
+ [43] = KEY_BACKSLASH,
+ [45] = KEY_KP4,
+ [46] = KEY_KP5,
+ [47] = KEY_KP6,
+ [48] = KEY_102ND,
+ [49] = KEY_Z,
+ [50] = KEY_X,
+ [51] = KEY_C,
+ [52] = KEY_V,
+ [53] = KEY_B,
+ [54] = KEY_N,
+ [55] = KEY_M,
+ [56] = KEY_COMMA,
+ [57] = KEY_DOT,
+ [58] = KEY_SLASH,
+ [60] = KEY_KPDOT,
+ [61] = KEY_KP7,
+ [62] = KEY_KP8,
+ [63] = KEY_KP9,
+ [64] = KEY_SPACE,
+ [65] = KEY_BACKSPACE,
+ [66] = KEY_TAB,
+ [67] = KEY_KPENTER,
+ [68] = KEY_ENTER,
+ [69] = KEY_ESC,
+ [70] = KEY_DELETE,
+ [74] = KEY_KPMINUS,
+ [76] = KEY_UP,
+ [77] = KEY_DOWN,
+ [78] = KEY_RIGHT,
+ [79] = KEY_LEFT,
+ [80] = KEY_F1,
+ [81] = KEY_F2,
+ [82] = KEY_F3,
+ [83] = KEY_F4,
+ [84] = KEY_F5,
+ [85] = KEY_F6,
+ [86] = KEY_F7,
+ [87] = KEY_F8,
+ [88] = KEY_F9,
+ [89] = KEY_F10,
+ [90] = KEY_KPLEFTPAREN,
+ [91] = KEY_KPRIGHTPAREN,
+ [92] = KEY_KPSLASH,
+ [93] = KEY_KPASTERISK,
+ [94] = KEY_KPPLUS,
+ [95] = KEY_HELP,
+ [96] = KEY_LEFTSHIFT,
+ [97] = KEY_RIGHTSHIFT,
+ [98] = KEY_CAPSLOCK,
+ [99] = KEY_LEFTCTRL,
+ [100] = KEY_LEFTALT,
+ [101] = KEY_RIGHTALT,
+ [102] = KEY_LEFTMETA,
+ [103] = KEY_RIGHTMETA
+};
+
+static const char *amikbd_messages[8] = {
+ [0] = KERN_ALERT "amikbd: Ctrl-Amiga-Amiga reset warning!!\n",
+ [1] = KERN_WARNING "amikbd: keyboard lost sync\n",
+ [2] = KERN_WARNING "amikbd: keyboard buffer overflow\n",
+ [3] = KERN_WARNING "amikbd: keyboard controller failure\n",
+ [4] = KERN_ERR "amikbd: keyboard selftest failure\n",
+ [5] = KERN_INFO "amikbd: initiate power-up key stream\n",
+ [6] = KERN_INFO "amikbd: terminate power-up key stream\n",
+ [7] = KERN_WARNING "amikbd: keyboard interrupt\n"
+};
+
+static irqreturn_t amikbd_interrupt(int irq, void *data)
+{
+ struct input_dev *dev = data;
+ unsigned char scancode, down;
+
+ scancode = ~ciaa.sdr; /* get and invert scancode (keyboard is active low) */
+ ciaa.cra |= 0x40; /* switch SP pin to output for handshake */
+ udelay(85); /* wait until 85 us have expired */
+ ciaa.cra &= ~0x40; /* switch CIA serial port to input mode */
+
+ down = !(scancode & 1); /* lowest bit is release bit */
+ scancode >>= 1;
+
+ if (scancode < 0x78) { /* scancodes < 0x78 are keys */
+ if (scancode == 98) { /* CapsLock is a toggle switch key on Amiga */
+ input_report_key(dev, scancode, 1);
+ input_report_key(dev, scancode, 0);
+ } else {
+ input_report_key(dev, scancode, down);
+ }
+
+ input_sync(dev);
+ } else /* scancodes >= 0x78 are error codes */
+ printk(amikbd_messages[scancode - 0x78]);
+
+ return IRQ_HANDLED;
+}
+
+static int __init amikbd_probe(struct platform_device *pdev)
+{
+ struct input_dev *dev;
+ int i, j, err;
+
+ dev = input_allocate_device();
+ if (!dev) {
+ dev_err(&pdev->dev, "Not enough memory for input device\n");
+ return -ENOMEM;
+ }
+
+ dev->name = pdev->name;
+ dev->phys = "amikbd/input0";
+ dev->id.bustype = BUS_AMIGA;
+ dev->id.vendor = 0x0001;
+ dev->id.product = 0x0001;
+ dev->id.version = 0x0100;
+ dev->dev.parent = &pdev->dev;
+
+ dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP);
+
+ for (i = 0; i < 0x78; i++)
+ set_bit(i, dev->keybit);
+
+ for (i = 0; i < MAX_NR_KEYMAPS; i++) {
+ static u_short temp_map[NR_KEYS] __initdata;
+ if (!key_maps[i])
+ continue;
+ memset(temp_map, 0, sizeof(temp_map));
+ for (j = 0; j < 0x78; j++) {
+ if (!amikbd_keycode[j])
+ continue;
+ temp_map[j] = key_maps[i][amikbd_keycode[j]];
+ }
+ for (j = 0; j < NR_KEYS; j++) {
+ if (!temp_map[j])
+ temp_map[j] = 0xf200;
+ }
+ memcpy(key_maps[i], temp_map, sizeof(temp_map));
+ }
+ ciaa.cra &= ~0x41; /* serial data in, turn off TA */
+ err = request_irq(IRQ_AMIGA_CIAA_SP, amikbd_interrupt, 0, "amikbd",
+ dev);
+ if (err)
+ goto fail2;
+
+ err = input_register_device(dev);
+ if (err)
+ goto fail3;
+
+ platform_set_drvdata(pdev, dev);
+
+ return 0;
+
+ fail3: free_irq(IRQ_AMIGA_CIAA_SP, dev);
+ fail2: input_free_device(dev);
+ return err;
+}
+
+static int __exit amikbd_remove(struct platform_device *pdev)
+{
+ struct input_dev *dev = platform_get_drvdata(pdev);
+
+ platform_set_drvdata(pdev, NULL);
+ free_irq(IRQ_AMIGA_CIAA_SP, dev);
+ input_unregister_device(dev);
+ return 0;
+}
+
+static struct platform_driver amikbd_driver = {
+ .remove = __exit_p(amikbd_remove),
+ .driver = {
+ .name = "amiga-keyboard",
+ .owner = THIS_MODULE,
+ },
+};
+
+static int __init amikbd_init(void)
+{
+ return platform_driver_probe(&amikbd_driver, amikbd_probe);
+}
+
+module_init(amikbd_init);
+
+static void __exit amikbd_exit(void)
+{
+ platform_driver_unregister(&amikbd_driver);
+}
+
+module_exit(amikbd_exit);
+
+MODULE_ALIAS("platform:amiga-keyboard");
diff --git a/drivers/input/keyboard/atakbd.c b/drivers/input/keyboard/atakbd.c
new file mode 100644
index 0000000..10bcd4a
--- /dev/null
+++ b/drivers/input/keyboard/atakbd.c
@@ -0,0 +1,269 @@
+/*
+ * atakbd.c
+ *
+ * Copyright (c) 2005 Michael Schmitz
+ *
+ * Based on amikbd.c, which is
+ *
+ * Copyright (c) 2000-2001 Vojtech Pavlik
+ *
+ * Based on the work of:
+ * Hamish Macdonald
+ */
+
+/*
+ * Atari keyboard driver for Linux/m68k
+ *
+ * The low level init and interrupt stuff is handled in arch/mm68k/atari/atakeyb.c
+ * (the keyboard ACIA also handles the mouse and joystick data, and the keyboard
+ * interrupt is shared with the MIDI ACIA so MIDI data also get handled there).
+ * This driver only deals with handing key events off to the input layer.
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * Should you need to contact me, the author, you can do so either by
+ * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
+ * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/input.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+
+#include <asm/atariints.h>
+#include <asm/atarihw.h>
+#include <asm/atarikb.h>
+#include <asm/irq.h>
+
+MODULE_AUTHOR("Michael Schmitz <schmitz@biophys.uni-duesseldorf.de>");
+MODULE_DESCRIPTION("Atari keyboard driver");
+MODULE_LICENSE("GPL");
+
+/*
+ 0x47: KP_7 71
+ 0x48: KP_8 72
+ 0x49: KP_9 73
+ 0x62: KP_/ 98
+ 0x4b: KP_4 75
+ 0x4c: KP_5 76
+ 0x4d: KP_6 77
+ 0x37: KP_* 55
+ 0x4f: KP_1 79
+ 0x50: KP_2 80
+ 0x51: KP_3 81
+ 0x4a: KP_- 74
+ 0x52: KP_0 82
+ 0x53: KP_. 83
+ 0x4e: KP_+ 78
+
+ 0x67: Up 103
+ 0x6c: Down 108
+ 0x69: Left 105
+ 0x6a: Right 106
+ */
+
+
+static unsigned char atakbd_keycode[0x72] = { /* American layout */
+ [0] = KEY_GRAVE,
+ [1] = KEY_ESC,
+ [2] = KEY_1,
+ [3] = KEY_2,
+ [4] = KEY_3,
+ [5] = KEY_4,
+ [6] = KEY_5,
+ [7] = KEY_6,
+ [8] = KEY_7,
+ [9] = KEY_8,
+ [10] = KEY_9,
+ [11] = KEY_0,
+ [12] = KEY_MINUS,
+ [13] = KEY_EQUAL,
+ [14] = KEY_BACKSPACE,
+ [15] = KEY_TAB,
+ [16] = KEY_Q,
+ [17] = KEY_W,
+ [18] = KEY_E,
+ [19] = KEY_R,
+ [20] = KEY_T,
+ [21] = KEY_Y,
+ [22] = KEY_U,
+ [23] = KEY_I,
+ [24] = KEY_O,
+ [25] = KEY_P,
+ [26] = KEY_LEFTBRACE,
+ [27] = KEY_RIGHTBRACE,
+ [28] = KEY_ENTER,
+ [29] = KEY_LEFTCTRL,
+ [30] = KEY_A,
+ [31] = KEY_S,
+ [32] = KEY_D,
+ [33] = KEY_F,
+ [34] = KEY_G,
+ [35] = KEY_H,
+ [36] = KEY_J,
+ [37] = KEY_K,
+ [38] = KEY_L,
+ [39] = KEY_SEMICOLON,
+ [40] = KEY_APOSTROPHE,
+ [41] = KEY_BACKSLASH, /* FIXME, '#' */
+ [42] = KEY_LEFTSHIFT,
+ [43] = KEY_GRAVE, /* FIXME: '~' */
+ [44] = KEY_Z,
+ [45] = KEY_X,
+ [46] = KEY_C,
+ [47] = KEY_V,
+ [48] = KEY_B,
+ [49] = KEY_N,
+ [50] = KEY_M,
+ [51] = KEY_COMMA,
+ [52] = KEY_DOT,
+ [53] = KEY_SLASH,
+ [54] = KEY_RIGHTSHIFT,
+ [55] = KEY_KPASTERISK,
+ [56] = KEY_LEFTALT,
+ [57] = KEY_SPACE,
+ [58] = KEY_CAPSLOCK,
+ [59] = KEY_F1,
+ [60] = KEY_F2,
+ [61] = KEY_F3,
+ [62] = KEY_F4,
+ [63] = KEY_F5,
+ [64] = KEY_F6,
+ [65] = KEY_F7,
+ [66] = KEY_F8,
+ [67] = KEY_F9,
+ [68] = KEY_F10,
+ [69] = KEY_ESC,
+ [70] = KEY_DELETE,
+ [71] = KEY_KP7,
+ [72] = KEY_KP8,
+ [73] = KEY_KP9,
+ [74] = KEY_KPMINUS,
+ [75] = KEY_KP4,
+ [76] = KEY_KP5,
+ [77] = KEY_KP6,
+ [78] = KEY_KPPLUS,
+ [79] = KEY_KP1,
+ [80] = KEY_KP2,
+ [81] = KEY_KP3,
+ [82] = KEY_KP0,
+ [83] = KEY_KPDOT,
+ [90] = KEY_KPLEFTPAREN,
+ [91] = KEY_KPRIGHTPAREN,
+ [92] = KEY_KPASTERISK, /* FIXME */
+ [93] = KEY_KPASTERISK,
+ [94] = KEY_KPPLUS,
+ [95] = KEY_HELP,
+ [96] = KEY_BACKSLASH, /* FIXME: '<' */
+ [97] = KEY_KPASTERISK, /* FIXME */
+ [98] = KEY_KPSLASH,
+ [99] = KEY_KPLEFTPAREN,
+ [100] = KEY_KPRIGHTPAREN,
+ [101] = KEY_KPSLASH,
+ [102] = KEY_KPASTERISK,
+ [103] = KEY_UP,
+ [104] = KEY_KPASTERISK, /* FIXME */
+ [105] = KEY_LEFT,
+ [106] = KEY_RIGHT,
+ [107] = KEY_KPASTERISK, /* FIXME */
+ [108] = KEY_DOWN,
+ [109] = KEY_KPASTERISK, /* FIXME */
+ [110] = KEY_KPASTERISK, /* FIXME */
+ [111] = KEY_KPASTERISK, /* FIXME */
+ [112] = KEY_KPASTERISK, /* FIXME */
+ [113] = KEY_KPASTERISK /* FIXME */
+};
+
+static struct input_dev *atakbd_dev;
+
+static void atakbd_interrupt(unsigned char scancode, char down)
+{
+
+ if (scancode < 0x72) { /* scancodes < 0xf2 are keys */
+
+ // report raw events here?
+
+ scancode = atakbd_keycode[scancode];
+
+ if (scancode == KEY_CAPSLOCK) { /* CapsLock is a toggle switch key on Amiga */
+ input_report_key(atakbd_dev, scancode, 1);
+ input_report_key(atakbd_dev, scancode, 0);
+ input_sync(atakbd_dev);
+ } else {
+ input_report_key(atakbd_dev, scancode, down);
+ input_sync(atakbd_dev);
+ }
+ } else /* scancodes >= 0xf2 are mouse data, most likely */
+ printk(KERN_INFO "atakbd: unhandled scancode %x\n", scancode);
+
+ return;
+}
+
+static int __init atakbd_init(void)
+{
+ int i, error;
+
+ if (!MACH_IS_ATARI || !ATARIHW_PRESENT(ST_MFP))
+ return -ENODEV;
+
+ // need to init core driver if not already done so
+ error = atari_keyb_init();
+ if (error)
+ return error;
+
+ atakbd_dev = input_allocate_device();
+ if (!atakbd_dev)
+ return -ENOMEM;
+
+ atakbd_dev->name = "Atari Keyboard";
+ atakbd_dev->phys = "atakbd/input0";
+ atakbd_dev->id.bustype = BUS_HOST;
+ atakbd_dev->id.vendor = 0x0001;
+ atakbd_dev->id.product = 0x0001;
+ atakbd_dev->id.version = 0x0100;
+
+ atakbd_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP);
+ atakbd_dev->keycode = atakbd_keycode;
+ atakbd_dev->keycodesize = sizeof(unsigned char);
+ atakbd_dev->keycodemax = ARRAY_SIZE(atakbd_keycode);
+
+ for (i = 1; i < 0x72; i++) {
+ set_bit(atakbd_keycode[i], atakbd_dev->keybit);
+ }
+
+ /* error check */
+ error = input_register_device(atakbd_dev);
+ if (error) {
+ input_free_device(atakbd_dev);
+ return error;
+ }
+
+ atari_input_keyboard_interrupt_hook = atakbd_interrupt;
+
+ return 0;
+}
+
+static void __exit atakbd_exit(void)
+{
+ atari_input_keyboard_interrupt_hook = NULL;
+ input_unregister_device(atakbd_dev);
+}
+
+module_init(atakbd_init);
+module_exit(atakbd_exit);
diff --git a/drivers/input/keyboard/atkbd.c b/drivers/input/keyboard/atkbd.c
new file mode 100644
index 0000000..19cfc0c
--- /dev/null
+++ b/drivers/input/keyboard/atkbd.c
@@ -0,0 +1,1744 @@
+/*
+ * AT and PS/2 keyboard driver
+ *
+ * Copyright (c) 1999-2002 Vojtech Pavlik
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ */
+
+/*
+ * This driver can handle standard AT keyboards and PS/2 keyboards in
+ * Translated and Raw Set 2 and Set 3, as well as AT keyboards on dumb
+ * input-only controllers and AT keyboards connected over a one way RS232
+ * converter.
+ */
+
+#include <linux/delay.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/interrupt.h>
+#include <linux/init.h>
+#include <linux/input.h>
+#include <linux/serio.h>
+#include <linux/workqueue.h>
+#include <linux/libps2.h>
+#include <linux/mutex.h>
+#include <linux/dmi.h>
+
+#define DRIVER_DESC "AT and PS/2 keyboard driver"
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@suse.cz>");
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+static int atkbd_set = 2;
+module_param_named(set, atkbd_set, int, 0);
+MODULE_PARM_DESC(set, "Select keyboard code set (2 = default, 3 = PS/2 native)");
+
+#if defined(__i386__) || defined(__x86_64__) || defined(__hppa__)
+static bool atkbd_reset;
+#else
+static bool atkbd_reset = true;
+#endif
+module_param_named(reset, atkbd_reset, bool, 0);
+MODULE_PARM_DESC(reset, "Reset keyboard during initialization");
+
+static bool atkbd_softrepeat;
+module_param_named(softrepeat, atkbd_softrepeat, bool, 0);
+MODULE_PARM_DESC(softrepeat, "Use software keyboard repeat");
+
+static bool atkbd_softraw = true;
+module_param_named(softraw, atkbd_softraw, bool, 0);
+MODULE_PARM_DESC(softraw, "Use software generated rawmode");
+
+static bool atkbd_scroll;
+module_param_named(scroll, atkbd_scroll, bool, 0);
+MODULE_PARM_DESC(scroll, "Enable scroll-wheel on MS Office and similar keyboards");
+
+static bool atkbd_extra;
+module_param_named(extra, atkbd_extra, bool, 0);
+MODULE_PARM_DESC(extra, "Enable extra LEDs and keys on IBM RapidAcces, EzKey and similar keyboards");
+
+static bool atkbd_terminal;
+module_param_named(terminal, atkbd_terminal, bool, 0);
+MODULE_PARM_DESC(terminal, "Enable break codes on an IBM Terminal keyboard connected via AT/PS2");
+
+/*
+ * Scancode to keycode tables. These are just the default setting, and
+ * are loadable via a userland utility.
+ */
+
+#define ATKBD_KEYMAP_SIZE 512
+
+static const unsigned short atkbd_set2_keycode[ATKBD_KEYMAP_SIZE] = {
+
+#ifdef CONFIG_KEYBOARD_ATKBD_HP_KEYCODES
+
+/* XXX: need a more general approach */
+
+#include "hpps2atkbd.h" /* include the keyboard scancodes */
+
+#else
+ 0, 67, 65, 63, 61, 59, 60, 88, 0, 68, 66, 64, 62, 15, 41,117,
+ 0, 56, 42, 93, 29, 16, 2, 0, 0, 0, 44, 31, 30, 17, 3, 0,
+ 0, 46, 45, 32, 18, 5, 4, 95, 0, 57, 47, 33, 20, 19, 6,183,
+ 0, 49, 48, 35, 34, 21, 7,184, 0, 0, 50, 36, 22, 8, 9,185,
+ 0, 51, 37, 23, 24, 11, 10, 0, 0, 52, 53, 38, 39, 25, 12, 0,
+ 0, 89, 40, 0, 26, 13, 0, 0, 58, 54, 28, 27, 0, 43, 0, 85,
+ 0, 86, 91, 90, 92, 0, 14, 94, 0, 79,124, 75, 71,121, 0, 0,
+ 82, 83, 80, 76, 77, 72, 1, 69, 87, 78, 81, 74, 55, 73, 70, 99,
+
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 217,100,255, 0, 97,165, 0, 0,156, 0, 0, 0, 0, 0, 0,125,
+ 173,114, 0,113, 0, 0, 0,126,128, 0, 0,140, 0, 0, 0,127,
+ 159, 0,115, 0,164, 0, 0,116,158, 0,172,166, 0, 0, 0,142,
+ 157, 0, 0, 0, 0, 0, 0, 0,155, 0, 98, 0, 0,163, 0, 0,
+ 226, 0, 0, 0, 0, 0, 0, 0, 0,255, 96, 0, 0, 0,143, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0,107, 0,105,102, 0, 0,112,
+ 110,111,108,112,106,103, 0,119, 0,118,109, 0, 99,104,119, 0,
+
+ 0, 0, 0, 65, 99,
+#endif
+};
+
+static const unsigned short atkbd_set3_keycode[ATKBD_KEYMAP_SIZE] = {
+
+ 0, 0, 0, 0, 0, 0, 0, 59, 1,138,128,129,130, 15, 41, 60,
+ 131, 29, 42, 86, 58, 16, 2, 61,133, 56, 44, 31, 30, 17, 3, 62,
+ 134, 46, 45, 32, 18, 5, 4, 63,135, 57, 47, 33, 20, 19, 6, 64,
+ 136, 49, 48, 35, 34, 21, 7, 65,137,100, 50, 36, 22, 8, 9, 66,
+ 125, 51, 37, 23, 24, 11, 10, 67,126, 52, 53, 38, 39, 25, 12, 68,
+ 113,114, 40, 43, 26, 13, 87, 99, 97, 54, 28, 27, 43, 43, 88, 70,
+ 108,105,119,103,111,107, 14,110, 0, 79,106, 75, 71,109,102,104,
+ 82, 83, 80, 76, 77, 72, 69, 98, 0, 96, 81, 0, 78, 73, 55,183,
+
+ 184,185,186,187, 74, 94, 92, 93, 0, 0, 0,125,126,127,112, 0,
+ 0,139,172,163,165,115,152,172,166,140,160,154,113,114,167,168,
+ 148,149,147,140
+};
+
+static const unsigned short atkbd_unxlate_table[128] = {
+ 0,118, 22, 30, 38, 37, 46, 54, 61, 62, 70, 69, 78, 85,102, 13,
+ 21, 29, 36, 45, 44, 53, 60, 67, 68, 77, 84, 91, 90, 20, 28, 27,
+ 35, 43, 52, 51, 59, 66, 75, 76, 82, 14, 18, 93, 26, 34, 33, 42,
+ 50, 49, 58, 65, 73, 74, 89,124, 17, 41, 88, 5, 6, 4, 12, 3,
+ 11, 2, 10, 1, 9,119,126,108,117,125,123,107,115,116,121,105,
+ 114,122,112,113,127, 96, 97,120, 7, 15, 23, 31, 39, 47, 55, 63,
+ 71, 79, 86, 94, 8, 16, 24, 32, 40, 48, 56, 64, 72, 80, 87,111,
+ 19, 25, 57, 81, 83, 92, 95, 98, 99,100,101,103,104,106,109,110
+};
+
+#define ATKBD_CMD_SETLEDS 0x10ed
+#define ATKBD_CMD_GSCANSET 0x11f0
+#define ATKBD_CMD_SSCANSET 0x10f0
+#define ATKBD_CMD_GETID 0x02f2
+#define ATKBD_CMD_SETREP 0x10f3
+#define ATKBD_CMD_ENABLE 0x00f4
+#define ATKBD_CMD_RESET_DIS 0x00f5 /* Reset to defaults and disable */
+#define ATKBD_CMD_RESET_DEF 0x00f6 /* Reset to defaults */
+#define ATKBD_CMD_SETALL_MB 0x00f8 /* Set all keys to give break codes */
+#define ATKBD_CMD_SETALL_MBR 0x00fa /* ... and repeat */
+#define ATKBD_CMD_RESET_BAT 0x02ff
+#define ATKBD_CMD_RESEND 0x00fe
+#define ATKBD_CMD_EX_ENABLE 0x10ea
+#define ATKBD_CMD_EX_SETLEDS 0x20eb
+#define ATKBD_CMD_OK_GETID 0x02e8
+
+#define ATKBD_RET_ACK 0xfa
+#define ATKBD_RET_NAK 0xfe
+#define ATKBD_RET_BAT 0xaa
+#define ATKBD_RET_EMUL0 0xe0
+#define ATKBD_RET_EMUL1 0xe1
+#define ATKBD_RET_RELEASE 0xf0
+#define ATKBD_RET_HANJA 0xf1
+#define ATKBD_RET_HANGEUL 0xf2
+#define ATKBD_RET_ERR 0xff
+
+#define ATKBD_KEY_UNKNOWN 0
+#define ATKBD_KEY_NULL 255
+
+#define ATKBD_SCR_1 0xfffe
+#define ATKBD_SCR_2 0xfffd
+#define ATKBD_SCR_4 0xfffc
+#define ATKBD_SCR_8 0xfffb
+#define ATKBD_SCR_CLICK 0xfffa
+#define ATKBD_SCR_LEFT 0xfff9
+#define ATKBD_SCR_RIGHT 0xfff8
+
+#define ATKBD_SPECIAL ATKBD_SCR_RIGHT
+
+#define ATKBD_LED_EVENT_BIT 0
+#define ATKBD_REP_EVENT_BIT 1
+
+#define ATKBD_XL_ERR 0x01
+#define ATKBD_XL_BAT 0x02
+#define ATKBD_XL_ACK 0x04
+#define ATKBD_XL_NAK 0x08
+#define ATKBD_XL_HANGEUL 0x10
+#define ATKBD_XL_HANJA 0x20
+
+static const struct {
+ unsigned short keycode;
+ unsigned char set2;
+} atkbd_scroll_keys[] = {
+ { ATKBD_SCR_1, 0xc5 },
+ { ATKBD_SCR_2, 0x9d },
+ { ATKBD_SCR_4, 0xa4 },
+ { ATKBD_SCR_8, 0x9b },
+ { ATKBD_SCR_CLICK, 0xe0 },
+ { ATKBD_SCR_LEFT, 0xcb },
+ { ATKBD_SCR_RIGHT, 0xd2 },
+};
+
+/*
+ * The atkbd control structure
+ */
+
+struct atkbd {
+
+ struct ps2dev ps2dev;
+ struct input_dev *dev;
+
+ /* Written only during init */
+ char name[64];
+ char phys[32];
+
+ unsigned short id;
+ unsigned short keycode[ATKBD_KEYMAP_SIZE];
+ DECLARE_BITMAP(force_release_mask, ATKBD_KEYMAP_SIZE);
+ unsigned char set;
+ bool translated;
+ bool extra;
+ bool write;
+ bool softrepeat;
+ bool softraw;
+ bool scroll;
+ bool enabled;
+
+ /* Accessed only from interrupt */
+ unsigned char emul;
+ bool resend;
+ bool release;
+ unsigned long xl_bit;
+ unsigned int last;
+ unsigned long time;
+ unsigned long err_count;
+
+ struct delayed_work event_work;
+ unsigned long event_jiffies;
+ unsigned long event_mask;
+
+ /* Serializes reconnect(), attr->set() and event work */
+ struct mutex mutex;
+};
+
+/*
+ * System-specific keymap fixup routine
+ */
+static void (*atkbd_platform_fixup)(struct atkbd *, const void *data);
+static void *atkbd_platform_fixup_data;
+static unsigned int (*atkbd_platform_scancode_fixup)(struct atkbd *, unsigned int);
+
+static ssize_t atkbd_attr_show_helper(struct device *dev, char *buf,
+ ssize_t (*handler)(struct atkbd *, char *));
+static ssize_t atkbd_attr_set_helper(struct device *dev, const char *buf, size_t count,
+ ssize_t (*handler)(struct atkbd *, const char *, size_t));
+#define ATKBD_DEFINE_ATTR(_name) \
+static ssize_t atkbd_show_##_name(struct atkbd *, char *); \
+static ssize_t atkbd_set_##_name(struct atkbd *, const char *, size_t); \
+static ssize_t atkbd_do_show_##_name(struct device *d, \
+ struct device_attribute *attr, char *b) \
+{ \
+ return atkbd_attr_show_helper(d, b, atkbd_show_##_name); \
+} \
+static ssize_t atkbd_do_set_##_name(struct device *d, \
+ struct device_attribute *attr, const char *b, size_t s) \
+{ \
+ return atkbd_attr_set_helper(d, b, s, atkbd_set_##_name); \
+} \
+static struct device_attribute atkbd_attr_##_name = \
+ __ATTR(_name, S_IWUSR | S_IRUGO, atkbd_do_show_##_name, atkbd_do_set_##_name);
+
+ATKBD_DEFINE_ATTR(extra);
+ATKBD_DEFINE_ATTR(force_release);
+ATKBD_DEFINE_ATTR(scroll);
+ATKBD_DEFINE_ATTR(set);
+ATKBD_DEFINE_ATTR(softrepeat);
+ATKBD_DEFINE_ATTR(softraw);
+
+#define ATKBD_DEFINE_RO_ATTR(_name) \
+static ssize_t atkbd_show_##_name(struct atkbd *, char *); \
+static ssize_t atkbd_do_show_##_name(struct device *d, \
+ struct device_attribute *attr, char *b) \
+{ \
+ return atkbd_attr_show_helper(d, b, atkbd_show_##_name); \
+} \
+static struct device_attribute atkbd_attr_##_name = \
+ __ATTR(_name, S_IRUGO, atkbd_do_show_##_name, NULL);
+
+ATKBD_DEFINE_RO_ATTR(err_count);
+
+static struct attribute *atkbd_attributes[] = {
+ &atkbd_attr_extra.attr,
+ &atkbd_attr_force_release.attr,
+ &atkbd_attr_scroll.attr,
+ &atkbd_attr_set.attr,
+ &atkbd_attr_softrepeat.attr,
+ &atkbd_attr_softraw.attr,
+ &atkbd_attr_err_count.attr,
+ NULL
+};
+
+static struct attribute_group atkbd_attribute_group = {
+ .attrs = atkbd_attributes,
+};
+
+static const unsigned int xl_table[] = {
+ ATKBD_RET_BAT, ATKBD_RET_ERR, ATKBD_RET_ACK,
+ ATKBD_RET_NAK, ATKBD_RET_HANJA, ATKBD_RET_HANGEUL,
+};
+
+/*
+ * Checks if we should mangle the scancode to extract 'release' bit
+ * in translated mode.
+ */
+static bool atkbd_need_xlate(unsigned long xl_bit, unsigned char code)
+{
+ int i;
+
+ if (code == ATKBD_RET_EMUL0 || code == ATKBD_RET_EMUL1)
+ return false;
+
+ for (i = 0; i < ARRAY_SIZE(xl_table); i++)
+ if (code == xl_table[i])
+ return test_bit(i, &xl_bit);
+
+ return true;
+}
+
+/*
+ * Calculates new value of xl_bit so the driver can distinguish
+ * between make/break pair of scancodes for select keys and PS/2
+ * protocol responses.
+ */
+static void atkbd_calculate_xl_bit(struct atkbd *atkbd, unsigned char code)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(xl_table); i++) {
+ if (!((code ^ xl_table[i]) & 0x7f)) {
+ if (code & 0x80)
+ __clear_bit(i, &atkbd->xl_bit);
+ else
+ __set_bit(i, &atkbd->xl_bit);
+ break;
+ }
+ }
+}
+
+/*
+ * Encode the scancode, 0xe0 prefix, and high bit into a single integer,
+ * keeping kernel 2.4 compatibility for set 2
+ */
+static unsigned int atkbd_compat_scancode(struct atkbd *atkbd, unsigned int code)
+{
+ if (atkbd->set == 3) {
+ if (atkbd->emul == 1)
+ code |= 0x100;
+ } else {
+ code = (code & 0x7f) | ((code & 0x80) << 1);
+ if (atkbd->emul == 1)
+ code |= 0x80;
+ }
+
+ return code;
+}
+
+/*
+ * atkbd_interrupt(). Here takes place processing of data received from
+ * the keyboard into events.
+ */
+
+static irqreturn_t atkbd_interrupt(struct serio *serio, unsigned char data,
+ unsigned int flags)
+{
+ struct atkbd *atkbd = serio_get_drvdata(serio);
+ struct input_dev *dev = atkbd->dev;
+ unsigned int code = data;
+ int scroll = 0, hscroll = 0, click = -1;
+ int value;
+ unsigned short keycode;
+
+ dev_dbg(&serio->dev, "Received %02x flags %02x\n", data, flags);
+
+#if !defined(__i386__) && !defined (__x86_64__)
+ if ((flags & (SERIO_FRAME | SERIO_PARITY)) && (~flags & SERIO_TIMEOUT) && !atkbd->resend && atkbd->write) {
+ dev_warn(&serio->dev, "Frame/parity error: %02x\n", flags);
+ serio_write(serio, ATKBD_CMD_RESEND);
+ atkbd->resend = true;
+ goto out;
+ }
+
+ if (!flags && data == ATKBD_RET_ACK)
+ atkbd->resend = false;
+#endif
+
+ if (unlikely(atkbd->ps2dev.flags & PS2_FLAG_ACK))
+ if (ps2_handle_ack(&atkbd->ps2dev, data))
+ goto out;
+
+ if (unlikely(atkbd->ps2dev.flags & PS2_FLAG_CMD))
+ if (ps2_handle_response(&atkbd->ps2dev, data))
+ goto out;
+
+ if (!atkbd->enabled)
+ goto out;
+
+ input_event(dev, EV_MSC, MSC_RAW, code);
+
+ if (atkbd_platform_scancode_fixup)
+ code = atkbd_platform_scancode_fixup(atkbd, code);
+
+ if (atkbd->translated) {
+
+ if (atkbd->emul || atkbd_need_xlate(atkbd->xl_bit, code)) {
+ atkbd->release = code >> 7;
+ code &= 0x7f;
+ }
+
+ if (!atkbd->emul)
+ atkbd_calculate_xl_bit(atkbd, data);
+ }
+
+ switch (code) {
+ case ATKBD_RET_BAT:
+ atkbd->enabled = false;
+ serio_reconnect(atkbd->ps2dev.serio);
+ goto out;
+ case ATKBD_RET_EMUL0:
+ atkbd->emul = 1;
+ goto out;
+ case ATKBD_RET_EMUL1:
+ atkbd->emul = 2;
+ goto out;
+ case ATKBD_RET_RELEASE:
+ atkbd->release = true;
+ goto out;
+ case ATKBD_RET_ACK:
+ case ATKBD_RET_NAK:
+ if (printk_ratelimit())
+ dev_warn(&serio->dev,
+ "Spurious %s on %s. "
+ "Some program might be trying access hardware directly.\n",
+ data == ATKBD_RET_ACK ? "ACK" : "NAK", serio->phys);
+ goto out;
+ case ATKBD_RET_ERR:
+ atkbd->err_count++;
+ dev_dbg(&serio->dev, "Keyboard on %s reports too many keys pressed.\n",
+ serio->phys);
+ goto out;
+ }
+
+ code = atkbd_compat_scancode(atkbd, code);
+
+ if (atkbd->emul && --atkbd->emul)
+ goto out;
+
+ keycode = atkbd->keycode[code];
+
+ if (keycode != ATKBD_KEY_NULL)
+ input_event(dev, EV_MSC, MSC_SCAN, code);
+
+ switch (keycode) {
+ case ATKBD_KEY_NULL:
+ break;
+ case ATKBD_KEY_UNKNOWN:
+ dev_warn(&serio->dev,
+ "Unknown key %s (%s set %d, code %#x on %s).\n",
+ atkbd->release ? "released" : "pressed",
+ atkbd->translated ? "translated" : "raw",
+ atkbd->set, code, serio->phys);
+ dev_warn(&serio->dev,
+ "Use 'setkeycodes %s%02x <keycode>' to make it known.\n",
+ code & 0x80 ? "e0" : "", code & 0x7f);
+ input_sync(dev);
+ break;
+ case ATKBD_SCR_1:
+ scroll = 1;
+ break;
+ case ATKBD_SCR_2:
+ scroll = 2;
+ break;
+ case ATKBD_SCR_4:
+ scroll = 4;
+ break;
+ case ATKBD_SCR_8:
+ scroll = 8;
+ break;
+ case ATKBD_SCR_CLICK:
+ click = !atkbd->release;
+ break;
+ case ATKBD_SCR_LEFT:
+ hscroll = -1;
+ break;
+ case ATKBD_SCR_RIGHT:
+ hscroll = 1;
+ break;
+ default:
+ if (atkbd->release) {
+ value = 0;
+ atkbd->last = 0;
+ } else if (!atkbd->softrepeat && test_bit(keycode, dev->key)) {
+ /* Workaround Toshiba laptop multiple keypress */
+ value = time_before(jiffies, atkbd->time) && atkbd->last == code ? 1 : 2;
+ } else {
+ value = 1;
+ atkbd->last = code;
+ atkbd->time = jiffies + msecs_to_jiffies(dev->rep[REP_DELAY]) / 2;
+ }
+
+ input_event(dev, EV_KEY, keycode, value);
+ input_sync(dev);
+
+ if (value && test_bit(code, atkbd->force_release_mask)) {
+ input_report_key(dev, keycode, 0);
+ input_sync(dev);
+ }
+ }
+
+ if (atkbd->scroll) {
+ if (click != -1)
+ input_report_key(dev, BTN_MIDDLE, click);
+ input_report_rel(dev, REL_WHEEL,
+ atkbd->release ? -scroll : scroll);
+ input_report_rel(dev, REL_HWHEEL, hscroll);
+ input_sync(dev);
+ }
+
+ atkbd->release = false;
+out:
+ return IRQ_HANDLED;
+}
+
+static int atkbd_set_repeat_rate(struct atkbd *atkbd)
+{
+ const short period[32] =
+ { 33, 37, 42, 46, 50, 54, 58, 63, 67, 75, 83, 92, 100, 109, 116, 125,
+ 133, 149, 167, 182, 200, 217, 232, 250, 270, 303, 333, 370, 400, 435, 470, 500 };
+ const short delay[4] =
+ { 250, 500, 750, 1000 };
+
+ struct input_dev *dev = atkbd->dev;
+ unsigned char param;
+ int i = 0, j = 0;
+
+ while (i < ARRAY_SIZE(period) - 1 && period[i] < dev->rep[REP_PERIOD])
+ i++;
+ dev->rep[REP_PERIOD] = period[i];
+
+ while (j < ARRAY_SIZE(delay) - 1 && delay[j] < dev->rep[REP_DELAY])
+ j++;
+ dev->rep[REP_DELAY] = delay[j];
+
+ param = i | (j << 5);
+ return ps2_command(&atkbd->ps2dev, ¶m, ATKBD_CMD_SETREP);
+}
+
+static int atkbd_set_leds(struct atkbd *atkbd)
+{
+ struct input_dev *dev = atkbd->dev;
+ unsigned char param[2];
+
+ param[0] = (test_bit(LED_SCROLLL, dev->led) ? 1 : 0)
+ | (test_bit(LED_NUML, dev->led) ? 2 : 0)
+ | (test_bit(LED_CAPSL, dev->led) ? 4 : 0);
+ if (ps2_command(&atkbd->ps2dev, param, ATKBD_CMD_SETLEDS))
+ return -1;
+
+ if (atkbd->extra) {
+ param[0] = 0;
+ param[1] = (test_bit(LED_COMPOSE, dev->led) ? 0x01 : 0)
+ | (test_bit(LED_SLEEP, dev->led) ? 0x02 : 0)
+ | (test_bit(LED_SUSPEND, dev->led) ? 0x04 : 0)
+ | (test_bit(LED_MISC, dev->led) ? 0x10 : 0)
+ | (test_bit(LED_MUTE, dev->led) ? 0x20 : 0);
+ if (ps2_command(&atkbd->ps2dev, param, ATKBD_CMD_EX_SETLEDS))
+ return -1;
+ }
+
+ return 0;
+}
+
+/*
+ * atkbd_event_work() is used to complete processing of events that
+ * can not be processed by input_event() which is often called from
+ * interrupt context.
+ */
+
+static void atkbd_event_work(struct work_struct *work)
+{
+ struct atkbd *atkbd = container_of(work, struct atkbd, event_work.work);
+
+ mutex_lock(&atkbd->mutex);
+
+ if (!atkbd->enabled) {
+ /*
+ * Serio ports are resumed asynchronously so while driver core
+ * thinks that device is already fully operational in reality
+ * it may not be ready yet. In this case we need to keep
+ * rescheduling till reconnect completes.
+ */
+ schedule_delayed_work(&atkbd->event_work,
+ msecs_to_jiffies(100));
+ } else {
+ if (test_and_clear_bit(ATKBD_LED_EVENT_BIT, &atkbd->event_mask))
+ atkbd_set_leds(atkbd);
+
+ if (test_and_clear_bit(ATKBD_REP_EVENT_BIT, &atkbd->event_mask))
+ atkbd_set_repeat_rate(atkbd);
+ }
+
+ mutex_unlock(&atkbd->mutex);
+}
+
+/*
+ * Schedule switch for execution. We need to throttle requests,
+ * otherwise keyboard may become unresponsive.
+ */
+static void atkbd_schedule_event_work(struct atkbd *atkbd, int event_bit)
+{
+ unsigned long delay = msecs_to_jiffies(50);
+
+ if (time_after(jiffies, atkbd->event_jiffies + delay))
+ delay = 0;
+
+ atkbd->event_jiffies = jiffies;
+ set_bit(event_bit, &atkbd->event_mask);
+ mb();
+ schedule_delayed_work(&atkbd->event_work, delay);
+}
+
+/*
+ * Event callback from the input module. Events that change the state of
+ * the hardware are processed here. If action can not be performed in
+ * interrupt context it is offloaded to atkbd_event_work.
+ */
+
+static int atkbd_event(struct input_dev *dev,
+ unsigned int type, unsigned int code, int value)
+{
+ struct atkbd *atkbd = input_get_drvdata(dev);
+
+ if (!atkbd->write)
+ return -1;
+
+ switch (type) {
+
+ case EV_LED:
+ atkbd_schedule_event_work(atkbd, ATKBD_LED_EVENT_BIT);
+ return 0;
+
+ case EV_REP:
+ if (!atkbd->softrepeat)
+ atkbd_schedule_event_work(atkbd, ATKBD_REP_EVENT_BIT);
+ return 0;
+
+ default:
+ return -1;
+ }
+}
+
+/*
+ * atkbd_enable() signals that interrupt handler is allowed to
+ * generate input events.
+ */
+
+static inline void atkbd_enable(struct atkbd *atkbd)
+{
+ serio_pause_rx(atkbd->ps2dev.serio);
+ atkbd->enabled = true;
+ serio_continue_rx(atkbd->ps2dev.serio);
+}
+
+/*
+ * atkbd_disable() tells input handler that all incoming data except
+ * for ACKs and command response should be dropped.
+ */
+
+static inline void atkbd_disable(struct atkbd *atkbd)
+{
+ serio_pause_rx(atkbd->ps2dev.serio);
+ atkbd->enabled = false;
+ serio_continue_rx(atkbd->ps2dev.serio);
+}
+
+/*
+ * atkbd_probe() probes for an AT keyboard on a serio port.
+ */
+
+static int atkbd_probe(struct atkbd *atkbd)
+{
+ struct ps2dev *ps2dev = &atkbd->ps2dev;
+ unsigned char param[2];
+
+/*
+ * Some systems, where the bit-twiddling when testing the io-lines of the
+ * controller may confuse the keyboard need a full reset of the keyboard. On
+ * these systems the BIOS also usually doesn't do it for us.
+ */
+
+ if (atkbd_reset)
+ if (ps2_command(ps2dev, NULL, ATKBD_CMD_RESET_BAT))
+ dev_warn(&ps2dev->serio->dev,
+ "keyboard reset failed on %s\n",
+ ps2dev->serio->phys);
+
+/*
+ * Then we check the keyboard ID. We should get 0xab83 under normal conditions.
+ * Some keyboards report different values, but the first byte is always 0xab or
+ * 0xac. Some old AT keyboards don't report anything. If a mouse is connected, this
+ * should make sure we don't try to set the LEDs on it.
+ */
+
+ param[0] = param[1] = 0xa5; /* initialize with invalid values */
+ if (ps2_command(ps2dev, param, ATKBD_CMD_GETID)) {
+
+/*
+ * If the get ID command failed, we check if we can at least set the LEDs on
+ * the keyboard. This should work on every keyboard out there. It also turns
+ * the LEDs off, which we want anyway.
+ */
+ param[0] = 0;
+ if (ps2_command(ps2dev, param, ATKBD_CMD_SETLEDS))
+ return -1;
+ atkbd->id = 0xabba;
+ return 0;
+ }
+
+ if (!ps2_is_keyboard_id(param[0]))
+ return -1;
+
+ atkbd->id = (param[0] << 8) | param[1];
+
+ if (atkbd->id == 0xaca1 && atkbd->translated) {
+ dev_err(&ps2dev->serio->dev,
+ "NCD terminal keyboards are only supported on non-translating controlelrs. "
+ "Use i8042.direct=1 to disable translation.\n");
+ return -1;
+ }
+
+ return 0;
+}
+
+/*
+ * atkbd_select_set checks if a keyboard has a working Set 3 support, and
+ * sets it into that. Unfortunately there are keyboards that can be switched
+ * to Set 3, but don't work well in that (BTC Multimedia ...)
+ */
+
+static int atkbd_select_set(struct atkbd *atkbd, int target_set, int allow_extra)
+{
+ struct ps2dev *ps2dev = &atkbd->ps2dev;
+ unsigned char param[2];
+
+ atkbd->extra = false;
+/*
+ * For known special keyboards we can go ahead and set the correct set.
+ * We check for NCD PS/2 Sun, NorthGate OmniKey 101 and
+ * IBM RapidAccess / IBM EzButton / Chicony KBP-8993 keyboards.
+ */
+
+ if (atkbd->translated)
+ return 2;
+
+ if (atkbd->id == 0xaca1) {
+ param[0] = 3;
+ ps2_command(ps2dev, param, ATKBD_CMD_SSCANSET);
+ return 3;
+ }
+
+ if (allow_extra) {
+ param[0] = 0x71;
+ if (!ps2_command(ps2dev, param, ATKBD_CMD_EX_ENABLE)) {
+ atkbd->extra = true;
+ return 2;
+ }
+ }
+
+ if (atkbd_terminal) {
+ ps2_command(ps2dev, param, ATKBD_CMD_SETALL_MB);
+ return 3;
+ }
+
+ if (target_set != 3)
+ return 2;
+
+ if (!ps2_command(ps2dev, param, ATKBD_CMD_OK_GETID)) {
+ atkbd->id = param[0] << 8 | param[1];
+ return 2;
+ }
+
+ param[0] = 3;
+ if (ps2_command(ps2dev, param, ATKBD_CMD_SSCANSET))
+ return 2;
+
+ param[0] = 0;
+ if (ps2_command(ps2dev, param, ATKBD_CMD_GSCANSET))
+ return 2;
+
+ if (param[0] != 3) {
+ param[0] = 2;
+ if (ps2_command(ps2dev, param, ATKBD_CMD_SSCANSET))
+ return 2;
+ }
+
+ ps2_command(ps2dev, param, ATKBD_CMD_SETALL_MBR);
+
+ return 3;
+}
+
+static int atkbd_reset_state(struct atkbd *atkbd)
+{
+ struct ps2dev *ps2dev = &atkbd->ps2dev;
+ unsigned char param[1];
+
+/*
+ * Set the LEDs to a predefined state (all off).
+ */
+
+ param[0] = 0;
+ if (ps2_command(ps2dev, param, ATKBD_CMD_SETLEDS))
+ return -1;
+
+/*
+ * Set autorepeat to fastest possible.
+ */
+
+ param[0] = 0;
+ if (ps2_command(ps2dev, param, ATKBD_CMD_SETREP))
+ return -1;
+
+ return 0;
+}
+
+static int atkbd_activate(struct atkbd *atkbd)
+{
+ struct ps2dev *ps2dev = &atkbd->ps2dev;
+
+/*
+ * Enable the keyboard to receive keystrokes.
+ */
+
+ if (ps2_command(ps2dev, NULL, ATKBD_CMD_ENABLE)) {
+ dev_err(&ps2dev->serio->dev,
+ "Failed to enable keyboard on %s\n",
+ ps2dev->serio->phys);
+ return -1;
+ }
+
+ return 0;
+}
+
+/*
+ * atkbd_cleanup() restores the keyboard state so that BIOS is happy after a
+ * reboot.
+ */
+
+static void atkbd_cleanup(struct serio *serio)
+{
+ struct atkbd *atkbd = serio_get_drvdata(serio);
+
+ atkbd_disable(atkbd);
+ ps2_command(&atkbd->ps2dev, NULL, ATKBD_CMD_RESET_DEF);
+}
+
+
+/*
+ * atkbd_disconnect() closes and frees.
+ */
+
+static void atkbd_disconnect(struct serio *serio)
+{
+ struct atkbd *atkbd = serio_get_drvdata(serio);
+
+ sysfs_remove_group(&serio->dev.kobj, &atkbd_attribute_group);
+
+ atkbd_disable(atkbd);
+
+ input_unregister_device(atkbd->dev);
+
+ /*
+ * Make sure we don't have a command in flight.
+ * Note that since atkbd->enabled is false event work will keep
+ * rescheduling itself until it gets canceled and will not try
+ * accessing freed input device or serio port.
+ */
+ cancel_delayed_work_sync(&atkbd->event_work);
+
+ serio_close(serio);
+ serio_set_drvdata(serio, NULL);
+ kfree(atkbd);
+}
+
+/*
+ * generate release events for the keycodes given in data
+ */
+static void atkbd_apply_forced_release_keylist(struct atkbd* atkbd,
+ const void *data)
+{
+ const unsigned int *keys = data;
+ unsigned int i;
+
+ if (atkbd->set == 2)
+ for (i = 0; keys[i] != -1U; i++)
+ __set_bit(keys[i], atkbd->force_release_mask);
+}
+
+/*
+ * Most special keys (Fn+F?) on Dell laptops do not generate release
+ * events so we have to do it ourselves.
+ */
+static unsigned int atkbd_dell_laptop_forced_release_keys[] = {
+ 0x85, 0x86, 0x87, 0x88, 0x89, 0x8a, 0x8b, 0x8f, 0x93, -1U
+};
+
+/*
+ * Perform fixup for HP system that doesn't generate release
+ * for its video switch
+ */
+static unsigned int atkbd_hp_forced_release_keys[] = {
+ 0x94, -1U
+};
+
+/*
+ * Samsung NC10,NC20 with Fn+F? key release not working
+ */
+static unsigned int atkbd_samsung_forced_release_keys[] = {
+ 0x82, 0x83, 0x84, 0x86, 0x88, 0x89, 0xb3, 0xf7, 0xf9, -1U
+};
+
+/*
+ * Amilo Pi 3525 key release for Fn+Volume keys not working
+ */
+static unsigned int atkbd_amilo_pi3525_forced_release_keys[] = {
+ 0x20, 0xa0, 0x2e, 0xae, 0x30, 0xb0, -1U
+};
+
+/*
+ * Amilo Xi 3650 key release for light touch bar not working
+ */
+static unsigned int atkbd_amilo_xi3650_forced_release_keys[] = {
+ 0x67, 0xed, 0x90, 0xa2, 0x99, 0xa4, 0xae, 0xb0, -1U
+};
+
+/*
+ * Soltech TA12 system with broken key release on volume keys and mute key
+ */
+static unsigned int atkdb_soltech_ta12_forced_release_keys[] = {
+ 0xa0, 0xae, 0xb0, -1U
+};
+
+/*
+ * Many notebooks don't send key release event for volume up/down
+ * keys, with key list below common among them
+ */
+static unsigned int atkbd_volume_forced_release_keys[] = {
+ 0xae, 0xb0, -1U
+};
+
+/*
+ * OQO 01+ multimedia keys (64--66) generate e0 6x upon release whereas
+ * they should be generating e4-e6 (0x80 | code).
+ */
+static unsigned int atkbd_oqo_01plus_scancode_fixup(struct atkbd *atkbd,
+ unsigned int code)
+{
+ if (atkbd->translated && atkbd->emul == 1 &&
+ (code == 0x64 || code == 0x65 || code == 0x66)) {
+ atkbd->emul = 0;
+ code |= 0x80;
+ }
+
+ return code;
+}
+
+/*
+ * atkbd_set_keycode_table() initializes keyboard's keycode table
+ * according to the selected scancode set
+ */
+
+static void atkbd_set_keycode_table(struct atkbd *atkbd)
+{
+ unsigned int scancode;
+ int i, j;
+
+ memset(atkbd->keycode, 0, sizeof(atkbd->keycode));
+ bitmap_zero(atkbd->force_release_mask, ATKBD_KEYMAP_SIZE);
+
+ if (atkbd->translated) {
+ for (i = 0; i < 128; i++) {
+ scancode = atkbd_unxlate_table[i];
+ atkbd->keycode[i] = atkbd_set2_keycode[scancode];
+ atkbd->keycode[i | 0x80] = atkbd_set2_keycode[scancode | 0x80];
+ if (atkbd->scroll)
+ for (j = 0; j < ARRAY_SIZE(atkbd_scroll_keys); j++)
+ if ((scancode | 0x80) == atkbd_scroll_keys[j].set2)
+ atkbd->keycode[i | 0x80] = atkbd_scroll_keys[j].keycode;
+ }
+ } else if (atkbd->set == 3) {
+ memcpy(atkbd->keycode, atkbd_set3_keycode, sizeof(atkbd->keycode));
+ } else {
+ memcpy(atkbd->keycode, atkbd_set2_keycode, sizeof(atkbd->keycode));
+
+ if (atkbd->scroll)
+ for (i = 0; i < ARRAY_SIZE(atkbd_scroll_keys); i++) {
+ scancode = atkbd_scroll_keys[i].set2;
+ atkbd->keycode[scancode] = atkbd_scroll_keys[i].keycode;
+ }
+ }
+
+/*
+ * HANGEUL and HANJA keys do not send release events so we need to
+ * generate such events ourselves
+ */
+ scancode = atkbd_compat_scancode(atkbd, ATKBD_RET_HANGEUL);
+ atkbd->keycode[scancode] = KEY_HANGEUL;
+ __set_bit(scancode, atkbd->force_release_mask);
+
+ scancode = atkbd_compat_scancode(atkbd, ATKBD_RET_HANJA);
+ atkbd->keycode[scancode] = KEY_HANJA;
+ __set_bit(scancode, atkbd->force_release_mask);
+
+/*
+ * Perform additional fixups
+ */
+ if (atkbd_platform_fixup)
+ atkbd_platform_fixup(atkbd, atkbd_platform_fixup_data);
+}
+
+/*
+ * atkbd_set_device_attrs() sets up keyboard's input device structure
+ */
+
+static void atkbd_set_device_attrs(struct atkbd *atkbd)
+{
+ struct input_dev *input_dev = atkbd->dev;
+ int i;
+
+ if (atkbd->extra)
+ snprintf(atkbd->name, sizeof(atkbd->name),
+ "AT Set 2 Extra keyboard");
+ else
+ snprintf(atkbd->name, sizeof(atkbd->name),
+ "AT %s Set %d keyboard",
+ atkbd->translated ? "Translated" : "Raw", atkbd->set);
+
+ snprintf(atkbd->phys, sizeof(atkbd->phys),
+ "%s/input0", atkbd->ps2dev.serio->phys);
+
+ input_dev->name = atkbd->name;
+ input_dev->phys = atkbd->phys;
+ input_dev->id.bustype = BUS_I8042;
+ input_dev->id.vendor = 0x0001;
+ input_dev->id.product = atkbd->translated ? 1 : atkbd->set;
+ input_dev->id.version = atkbd->id;
+ input_dev->event = atkbd_event;
+ input_dev->dev.parent = &atkbd->ps2dev.serio->dev;
+
+ input_set_drvdata(input_dev, atkbd);
+
+ input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP) |
+ BIT_MASK(EV_MSC);
+
+ if (atkbd->write) {
+ input_dev->evbit[0] |= BIT_MASK(EV_LED);
+ input_dev->ledbit[0] = BIT_MASK(LED_NUML) |
+ BIT_MASK(LED_CAPSL) | BIT_MASK(LED_SCROLLL);
+ }
+
+ if (atkbd->extra)
+ input_dev->ledbit[0] |= BIT_MASK(LED_COMPOSE) |
+ BIT_MASK(LED_SUSPEND) | BIT_MASK(LED_SLEEP) |
+ BIT_MASK(LED_MUTE) | BIT_MASK(LED_MISC);
+
+ if (!atkbd->softrepeat) {
+ input_dev->rep[REP_DELAY] = 250;
+ input_dev->rep[REP_PERIOD] = 33;
+ }
+
+ input_dev->mscbit[0] = atkbd->softraw ? BIT_MASK(MSC_SCAN) :
+ BIT_MASK(MSC_RAW) | BIT_MASK(MSC_SCAN);
+
+ if (atkbd->scroll) {
+ input_dev->evbit[0] |= BIT_MASK(EV_REL);
+ input_dev->relbit[0] = BIT_MASK(REL_WHEEL) |
+ BIT_MASK(REL_HWHEEL);
+ __set_bit(BTN_MIDDLE, input_dev->keybit);
+ }
+
+ input_dev->keycode = atkbd->keycode;
+ input_dev->keycodesize = sizeof(unsigned short);
+ input_dev->keycodemax = ARRAY_SIZE(atkbd_set2_keycode);
+
+ for (i = 0; i < ATKBD_KEYMAP_SIZE; i++) {
+ if (atkbd->keycode[i] != KEY_RESERVED &&
+ atkbd->keycode[i] != ATKBD_KEY_NULL &&
+ atkbd->keycode[i] < ATKBD_SPECIAL) {
+ __set_bit(atkbd->keycode[i], input_dev->keybit);
+ }
+ }
+}
+
+/*
+ * atkbd_connect() is called when the serio module finds an interface
+ * that isn't handled yet by an appropriate device driver. We check if
+ * there is an AT keyboard out there and if yes, we register ourselves
+ * to the input module.
+ */
+
+static int atkbd_connect(struct serio *serio, struct serio_driver *drv)
+{
+ struct atkbd *atkbd;
+ struct input_dev *dev;
+ int err = -ENOMEM;
+
+ atkbd = kzalloc(sizeof(struct atkbd), GFP_KERNEL);
+ dev = input_allocate_device();
+ if (!atkbd || !dev)
+ goto fail1;
+
+ atkbd->dev = dev;
+ ps2_init(&atkbd->ps2dev, serio);
+ INIT_DELAYED_WORK(&atkbd->event_work, atkbd_event_work);
+ mutex_init(&atkbd->mutex);
+
+ switch (serio->id.type) {
+
+ case SERIO_8042_XL:
+ atkbd->translated = true;
+ /* Fall through */
+
+ case SERIO_8042:
+ if (serio->write)
+ atkbd->write = true;
+ break;
+ }
+
+ atkbd->softraw = atkbd_softraw;
+ atkbd->softrepeat = atkbd_softrepeat;
+ atkbd->scroll = atkbd_scroll;
+
+ if (atkbd->softrepeat)
+ atkbd->softraw = true;
+
+ serio_set_drvdata(serio, atkbd);
+
+ err = serio_open(serio, drv);
+ if (err)
+ goto fail2;
+
+ if (atkbd->write) {
+
+ if (atkbd_probe(atkbd)) {
+ err = -ENODEV;
+ goto fail3;
+ }
+
+ atkbd->set = atkbd_select_set(atkbd, atkbd_set, atkbd_extra);
+ atkbd_reset_state(atkbd);
+ atkbd_activate(atkbd);
+
+ } else {
+ atkbd->set = 2;
+ atkbd->id = 0xab00;
+ }
+
+ atkbd_set_keycode_table(atkbd);
+ atkbd_set_device_attrs(atkbd);
+
+ err = sysfs_create_group(&serio->dev.kobj, &atkbd_attribute_group);
+ if (err)
+ goto fail3;
+
+ atkbd_enable(atkbd);
+
+ err = input_register_device(atkbd->dev);
+ if (err)
+ goto fail4;
+
+ return 0;
+
+ fail4: sysfs_remove_group(&serio->dev.kobj, &atkbd_attribute_group);
+ fail3: serio_close(serio);
+ fail2: serio_set_drvdata(serio, NULL);
+ fail1: input_free_device(dev);
+ kfree(atkbd);
+ return err;
+}
+
+/*
+ * atkbd_reconnect() tries to restore keyboard into a sane state and is
+ * most likely called on resume.
+ */
+
+static int atkbd_reconnect(struct serio *serio)
+{
+ struct atkbd *atkbd = serio_get_drvdata(serio);
+ struct serio_driver *drv = serio->drv;
+ int retval = -1;
+
+ if (!atkbd || !drv) {
+ dev_dbg(&serio->dev,
+ "reconnect request, but serio is disconnected, ignoring...\n");
+ return -1;
+ }
+
+ mutex_lock(&atkbd->mutex);
+
+ atkbd_disable(atkbd);
+
+ if (atkbd->write) {
+ if (atkbd_probe(atkbd))
+ goto out;
+
+ if (atkbd->set != atkbd_select_set(atkbd, atkbd->set, atkbd->extra))
+ goto out;
+
+ atkbd_activate(atkbd);
+
+ /*
+ * Restore LED state and repeat rate. While input core
+ * will do this for us at resume time reconnect may happen
+ * because user requested it via sysfs or simply because
+ * keyboard was unplugged and plugged in again so we need
+ * to do it ourselves here.
+ */
+ atkbd_set_leds(atkbd);
+ if (!atkbd->softrepeat)
+ atkbd_set_repeat_rate(atkbd);
+
+ }
+
+ atkbd_enable(atkbd);
+ retval = 0;
+
+ out:
+ mutex_unlock(&atkbd->mutex);
+ return retval;
+}
+
+static struct serio_device_id atkbd_serio_ids[] = {
+ {
+ .type = SERIO_8042,
+ .proto = SERIO_ANY,
+ .id = SERIO_ANY,
+ .extra = SERIO_ANY,
+ },
+ {
+ .type = SERIO_8042_XL,
+ .proto = SERIO_ANY,
+ .id = SERIO_ANY,
+ .extra = SERIO_ANY,
+ },
+ {
+ .type = SERIO_RS232,
+ .proto = SERIO_PS2SER,
+ .id = SERIO_ANY,
+ .extra = SERIO_ANY,
+ },
+ { 0 }
+};
+
+MODULE_DEVICE_TABLE(serio, atkbd_serio_ids);
+
+static struct serio_driver atkbd_drv = {
+ .driver = {
+ .name = "atkbd",
+ },
+ .description = DRIVER_DESC,
+ .id_table = atkbd_serio_ids,
+ .interrupt = atkbd_interrupt,
+ .connect = atkbd_connect,
+ .reconnect = atkbd_reconnect,
+ .disconnect = atkbd_disconnect,
+ .cleanup = atkbd_cleanup,
+};
+
+static ssize_t atkbd_attr_show_helper(struct device *dev, char *buf,
+ ssize_t (*handler)(struct atkbd *, char *))
+{
+ struct serio *serio = to_serio_port(dev);
+ struct atkbd *atkbd = serio_get_drvdata(serio);
+
+ return handler(atkbd, buf);
+}
+
+static ssize_t atkbd_attr_set_helper(struct device *dev, const char *buf, size_t count,
+ ssize_t (*handler)(struct atkbd *, const char *, size_t))
+{
+ struct serio *serio = to_serio_port(dev);
+ struct atkbd *atkbd = serio_get_drvdata(serio);
+ int retval;
+
+ retval = mutex_lock_interruptible(&atkbd->mutex);
+ if (retval)
+ return retval;
+
+ atkbd_disable(atkbd);
+ retval = handler(atkbd, buf, count);
+ atkbd_enable(atkbd);
+
+ mutex_unlock(&atkbd->mutex);
+
+ return retval;
+}
+
+static ssize_t atkbd_show_extra(struct atkbd *atkbd, char *buf)
+{
+ return sprintf(buf, "%d\n", atkbd->extra ? 1 : 0);
+}
+
+static ssize_t atkbd_set_extra(struct atkbd *atkbd, const char *buf, size_t count)
+{
+ struct input_dev *old_dev, *new_dev;
+ unsigned long value;
+ int err;
+ bool old_extra;
+ unsigned char old_set;
+
+ if (!atkbd->write)
+ return -EIO;
+
+ if (strict_strtoul(buf, 10, &value) || value > 1)
+ return -EINVAL;
+
+ if (atkbd->extra != value) {
+ /*
+ * Since device's properties will change we need to
+ * unregister old device. But allocate and register
+ * new one first to make sure we have it.
+ */
+ old_dev = atkbd->dev;
+ old_extra = atkbd->extra;
+ old_set = atkbd->set;
+
+ new_dev = input_allocate_device();
+ if (!new_dev)
+ return -ENOMEM;
+
+ atkbd->dev = new_dev;
+ atkbd->set = atkbd_select_set(atkbd, atkbd->set, value);
+ atkbd_reset_state(atkbd);
+ atkbd_activate(atkbd);
+ atkbd_set_keycode_table(atkbd);
+ atkbd_set_device_attrs(atkbd);
+
+ err = input_register_device(atkbd->dev);
+ if (err) {
+ input_free_device(new_dev);
+
+ atkbd->dev = old_dev;
+ atkbd->set = atkbd_select_set(atkbd, old_set, old_extra);
+ atkbd_set_keycode_table(atkbd);
+ atkbd_set_device_attrs(atkbd);
+
+ return err;
+ }
+ input_unregister_device(old_dev);
+
+ }
+ return count;
+}
+
+static ssize_t atkbd_show_force_release(struct atkbd *atkbd, char *buf)
+{
+ size_t len = bitmap_scnlistprintf(buf, PAGE_SIZE - 2,
+ atkbd->force_release_mask, ATKBD_KEYMAP_SIZE);
+
+ buf[len++] = '\n';
+ buf[len] = '\0';
+
+ return len;
+}
+
+static ssize_t atkbd_set_force_release(struct atkbd *atkbd,
+ const char *buf, size_t count)
+{
+ /* 64 bytes on stack should be acceptable */
+ DECLARE_BITMAP(new_mask, ATKBD_KEYMAP_SIZE);
+ int err;
+
+ err = bitmap_parselist(buf, new_mask, ATKBD_KEYMAP_SIZE);
+ if (err)
+ return err;
+
+ memcpy(atkbd->force_release_mask, new_mask, sizeof(atkbd->force_release_mask));
+ return count;
+}
+
+
+static ssize_t atkbd_show_scroll(struct atkbd *atkbd, char *buf)
+{
+ return sprintf(buf, "%d\n", atkbd->scroll ? 1 : 0);
+}
+
+static ssize_t atkbd_set_scroll(struct atkbd *atkbd, const char *buf, size_t count)
+{
+ struct input_dev *old_dev, *new_dev;
+ unsigned long value;
+ int err;
+ bool old_scroll;
+
+ if (strict_strtoul(buf, 10, &value) || value > 1)
+ return -EINVAL;
+
+ if (atkbd->scroll != value) {
+ old_dev = atkbd->dev;
+ old_scroll = atkbd->scroll;
+
+ new_dev = input_allocate_device();
+ if (!new_dev)
+ return -ENOMEM;
+
+ atkbd->dev = new_dev;
+ atkbd->scroll = value;
+ atkbd_set_keycode_table(atkbd);
+ atkbd_set_device_attrs(atkbd);
+
+ err = input_register_device(atkbd->dev);
+ if (err) {
+ input_free_device(new_dev);
+
+ atkbd->scroll = old_scroll;
+ atkbd->dev = old_dev;
+ atkbd_set_keycode_table(atkbd);
+ atkbd_set_device_attrs(atkbd);
+
+ return err;
+ }
+ input_unregister_device(old_dev);
+ }
+ return count;
+}
+
+static ssize_t atkbd_show_set(struct atkbd *atkbd, char *buf)
+{
+ return sprintf(buf, "%d\n", atkbd->set);
+}
+
+static ssize_t atkbd_set_set(struct atkbd *atkbd, const char *buf, size_t count)
+{
+ struct input_dev *old_dev, *new_dev;
+ unsigned long value;
+ int err;
+ unsigned char old_set;
+ bool old_extra;
+
+ if (!atkbd->write)
+ return -EIO;
+
+ if (strict_strtoul(buf, 10, &value) || (value != 2 && value != 3))
+ return -EINVAL;
+
+ if (atkbd->set != value) {
+ old_dev = atkbd->dev;
+ old_extra = atkbd->extra;
+ old_set = atkbd->set;
+
+ new_dev = input_allocate_device();
+ if (!new_dev)
+ return -ENOMEM;
+
+ atkbd->dev = new_dev;
+ atkbd->set = atkbd_select_set(atkbd, value, atkbd->extra);
+ atkbd_reset_state(atkbd);
+ atkbd_activate(atkbd);
+ atkbd_set_keycode_table(atkbd);
+ atkbd_set_device_attrs(atkbd);
+
+ err = input_register_device(atkbd->dev);
+ if (err) {
+ input_free_device(new_dev);
+
+ atkbd->dev = old_dev;
+ atkbd->set = atkbd_select_set(atkbd, old_set, old_extra);
+ atkbd_set_keycode_table(atkbd);
+ atkbd_set_device_attrs(atkbd);
+
+ return err;
+ }
+ input_unregister_device(old_dev);
+ }
+ return count;
+}
+
+static ssize_t atkbd_show_softrepeat(struct atkbd *atkbd, char *buf)
+{
+ return sprintf(buf, "%d\n", atkbd->softrepeat ? 1 : 0);
+}
+
+static ssize_t atkbd_set_softrepeat(struct atkbd *atkbd, const char *buf, size_t count)
+{
+ struct input_dev *old_dev, *new_dev;
+ unsigned long value;
+ int err;
+ bool old_softrepeat, old_softraw;
+
+ if (!atkbd->write)
+ return -EIO;
+
+ if (strict_strtoul(buf, 10, &value) || value > 1)
+ return -EINVAL;
+
+ if (atkbd->softrepeat != value) {
+ old_dev = atkbd->dev;
+ old_softrepeat = atkbd->softrepeat;
+ old_softraw = atkbd->softraw;
+
+ new_dev = input_allocate_device();
+ if (!new_dev)
+ return -ENOMEM;
+
+ atkbd->dev = new_dev;
+ atkbd->softrepeat = value;
+ if (atkbd->softrepeat)
+ atkbd->softraw = true;
+ atkbd_set_device_attrs(atkbd);
+
+ err = input_register_device(atkbd->dev);
+ if (err) {
+ input_free_device(new_dev);
+
+ atkbd->dev = old_dev;
+ atkbd->softrepeat = old_softrepeat;
+ atkbd->softraw = old_softraw;
+ atkbd_set_device_attrs(atkbd);
+
+ return err;
+ }
+ input_unregister_device(old_dev);
+ }
+ return count;
+}
+
+
+static ssize_t atkbd_show_softraw(struct atkbd *atkbd, char *buf)
+{
+ return sprintf(buf, "%d\n", atkbd->softraw ? 1 : 0);
+}
+
+static ssize_t atkbd_set_softraw(struct atkbd *atkbd, const char *buf, size_t count)
+{
+ struct input_dev *old_dev, *new_dev;
+ unsigned long value;
+ int err;
+ bool old_softraw;
+
+ if (strict_strtoul(buf, 10, &value) || value > 1)
+ return -EINVAL;
+
+ if (atkbd->softraw != value) {
+ old_dev = atkbd->dev;
+ old_softraw = atkbd->softraw;
+
+ new_dev = input_allocate_device();
+ if (!new_dev)
+ return -ENOMEM;
+
+ atkbd->dev = new_dev;
+ atkbd->softraw = value;
+ atkbd_set_device_attrs(atkbd);
+
+ err = input_register_device(atkbd->dev);
+ if (err) {
+ input_free_device(new_dev);
+
+ atkbd->dev = old_dev;
+ atkbd->softraw = old_softraw;
+ atkbd_set_device_attrs(atkbd);
+
+ return err;
+ }
+ input_unregister_device(old_dev);
+ }
+ return count;
+}
+
+static ssize_t atkbd_show_err_count(struct atkbd *atkbd, char *buf)
+{
+ return sprintf(buf, "%lu\n", atkbd->err_count);
+}
+
+static int __init atkbd_setup_forced_release(const struct dmi_system_id *id)
+{
+ atkbd_platform_fixup = atkbd_apply_forced_release_keylist;
+ atkbd_platform_fixup_data = id->driver_data;
+
+ return 1;
+}
+
+static int __init atkbd_setup_scancode_fixup(const struct dmi_system_id *id)
+{
+ atkbd_platform_scancode_fixup = id->driver_data;
+
+ return 1;
+}
+
+static const struct dmi_system_id atkbd_dmi_quirk_table[] __initconst = {
+ {
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_MATCH(DMI_CHASSIS_TYPE, "8"), /* Portable */
+ },
+ .callback = atkbd_setup_forced_release,
+ .driver_data = atkbd_dell_laptop_forced_release_keys,
+ },
+ {
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Computer Corporation"),
+ DMI_MATCH(DMI_CHASSIS_TYPE, "8"), /* Portable */
+ },
+ .callback = atkbd_setup_forced_release,
+ .driver_data = atkbd_dell_laptop_forced_release_keys,
+ },
+ {
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "HP 2133"),
+ },
+ .callback = atkbd_setup_forced_release,
+ .driver_data = atkbd_hp_forced_release_keys,
+ },
+ {
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Pavilion ZV6100"),
+ },
+ .callback = atkbd_setup_forced_release,
+ .driver_data = atkbd_volume_forced_release_keys,
+ },
+ {
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Presario R4000"),
+ },
+ .callback = atkbd_setup_forced_release,
+ .driver_data = atkbd_volume_forced_release_keys,
+ },
+ {
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Presario R4100"),
+ },
+ .callback = atkbd_setup_forced_release,
+ .driver_data = atkbd_volume_forced_release_keys,
+ },
+ {
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Presario R4200"),
+ },
+ .callback = atkbd_setup_forced_release,
+ .driver_data = atkbd_volume_forced_release_keys,
+ },
+ {
+ /* Inventec Symphony */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "INVENTEC"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "SYMPHONY 6.0/7.0"),
+ },
+ .callback = atkbd_setup_forced_release,
+ .driver_data = atkbd_volume_forced_release_keys,
+ },
+ {
+ /* Samsung NC10 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "NC10"),
+ },
+ .callback = atkbd_setup_forced_release,
+ .driver_data = atkbd_samsung_forced_release_keys,
+ },
+ {
+ /* Samsung NC20 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "NC20"),
+ },
+ .callback = atkbd_setup_forced_release,
+ .driver_data = atkbd_samsung_forced_release_keys,
+ },
+ {
+ /* Samsung SQ45S70S */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "SQ45S70S"),
+ },
+ .callback = atkbd_setup_forced_release,
+ .driver_data = atkbd_samsung_forced_release_keys,
+ },
+ {
+ /* Fujitsu Amilo PA 1510 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pa 1510"),
+ },
+ .callback = atkbd_setup_forced_release,
+ .driver_data = atkbd_volume_forced_release_keys,
+ },
+ {
+ /* Fujitsu Amilo Pi 3525 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pi 3525"),
+ },
+ .callback = atkbd_setup_forced_release,
+ .driver_data = atkbd_amilo_pi3525_forced_release_keys,
+ },
+ {
+ /* Fujitsu Amilo Xi 3650 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Xi 3650"),
+ },
+ .callback = atkbd_setup_forced_release,
+ .driver_data = atkbd_amilo_xi3650_forced_release_keys,
+ },
+ {
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Soltech Corporation"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "TA12"),
+ },
+ .callback = atkbd_setup_forced_release,
+ .driver_data = atkdb_soltech_ta12_forced_release_keys,
+ },
+ {
+ /* OQO Model 01+ */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "OQO"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "ZEPTO"),
+ },
+ .callback = atkbd_setup_scancode_fixup,
+ .driver_data = atkbd_oqo_01plus_scancode_fixup,
+ },
+ { }
+};
+
+static int __init atkbd_init(void)
+{
+ dmi_check_system(atkbd_dmi_quirk_table);
+
+ return serio_register_driver(&atkbd_drv);
+}
+
+static void __exit atkbd_exit(void)
+{
+ serio_unregister_driver(&atkbd_drv);
+}
+
+module_init(atkbd_init);
+module_exit(atkbd_exit);
diff --git a/drivers/input/keyboard/bf54x-keys.c b/drivers/input/keyboard/bf54x-keys.c
new file mode 100644
index 0000000..7d98960
--- /dev/null
+++ b/drivers/input/keyboard/bf54x-keys.c
@@ -0,0 +1,414 @@
+/*
+ * File: drivers/input/keyboard/bf54x-keys.c
+ * Based on:
+ * Author: Michael Hennerich <hennerich@blackfin.uclinux.org>
+ *
+ * Created:
+ * Description: keypad driver for Analog Devices Blackfin BF54x Processors
+ *
+ *
+ * Modified:
+ * Copyright 2007-2008 Analog Devices Inc.
+ *
+ * Bugs: Enter bugs at http://blackfin.uclinux.org/
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see the file COPYING, or write
+ * to the Free Software Foundation, Inc.,
+ * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <linux/module.h>
+
+#include <linux/init.h>
+#include <linux/fs.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/slab.h>
+#include <linux/sched.h>
+#include <linux/pm.h>
+#include <linux/sysctl.h>
+#include <linux/proc_fs.h>
+#include <linux/delay.h>
+#include <linux/platform_device.h>
+#include <linux/input.h>
+
+#include <asm/portmux.h>
+#include <mach/bf54x_keys.h>
+
+#define DRV_NAME "bf54x-keys"
+#define TIME_SCALE 100 /* 100 ns */
+#define MAX_MULT (0xFF * TIME_SCALE)
+#define MAX_RC 8 /* Max Row/Col */
+
+static const u16 per_rows[] = {
+ P_KEY_ROW7,
+ P_KEY_ROW6,
+ P_KEY_ROW5,
+ P_KEY_ROW4,
+ P_KEY_ROW3,
+ P_KEY_ROW2,
+ P_KEY_ROW1,
+ P_KEY_ROW0,
+ 0
+};
+
+static const u16 per_cols[] = {
+ P_KEY_COL7,
+ P_KEY_COL6,
+ P_KEY_COL5,
+ P_KEY_COL4,
+ P_KEY_COL3,
+ P_KEY_COL2,
+ P_KEY_COL1,
+ P_KEY_COL0,
+ 0
+};
+
+struct bf54x_kpad {
+ struct input_dev *input;
+ int irq;
+ unsigned short lastkey;
+ unsigned short *keycode;
+ struct timer_list timer;
+ unsigned int keyup_test_jiffies;
+ unsigned short kpad_msel;
+ unsigned short kpad_prescale;
+ unsigned short kpad_ctl;
+};
+
+static inline int bfin_kpad_find_key(struct bf54x_kpad *bf54x_kpad,
+ struct input_dev *input, u16 keyident)
+{
+ u16 i;
+
+ for (i = 0; i < input->keycodemax; i++)
+ if (bf54x_kpad->keycode[i + input->keycodemax] == keyident)
+ return bf54x_kpad->keycode[i];
+ return -1;
+}
+
+static inline void bfin_keycodecpy(unsigned short *keycode,
+ const unsigned int *pdata_kc,
+ unsigned short keymapsize)
+{
+ unsigned int i;
+
+ for (i = 0; i < keymapsize; i++) {
+ keycode[i] = pdata_kc[i] & 0xffff;
+ keycode[i + keymapsize] = pdata_kc[i] >> 16;
+ }
+}
+
+static inline u16 bfin_kpad_get_prescale(u32 timescale)
+{
+ u32 sclk = get_sclk();
+
+ return ((((sclk / 1000) * timescale) / 1024) - 1);
+}
+
+static inline u16 bfin_kpad_get_keypressed(struct bf54x_kpad *bf54x_kpad)
+{
+ return (bfin_read_KPAD_STAT() & KPAD_PRESSED);
+}
+
+static inline void bfin_kpad_clear_irq(void)
+{
+ bfin_write_KPAD_STAT(0xFFFF);
+ bfin_write_KPAD_ROWCOL(0xFFFF);
+}
+
+static void bfin_kpad_timer(unsigned long data)
+{
+ struct platform_device *pdev = (struct platform_device *) data;
+ struct bf54x_kpad *bf54x_kpad = platform_get_drvdata(pdev);
+
+ if (bfin_kpad_get_keypressed(bf54x_kpad)) {
+ /* Try again later */
+ mod_timer(&bf54x_kpad->timer,
+ jiffies + bf54x_kpad->keyup_test_jiffies);
+ return;
+ }
+
+ input_report_key(bf54x_kpad->input, bf54x_kpad->lastkey, 0);
+ input_sync(bf54x_kpad->input);
+
+ /* Clear IRQ Status */
+
+ bfin_kpad_clear_irq();
+ enable_irq(bf54x_kpad->irq);
+}
+
+static irqreturn_t bfin_kpad_isr(int irq, void *dev_id)
+{
+ struct platform_device *pdev = dev_id;
+ struct bf54x_kpad *bf54x_kpad = platform_get_drvdata(pdev);
+ struct input_dev *input = bf54x_kpad->input;
+ int key;
+ u16 rowcol = bfin_read_KPAD_ROWCOL();
+
+ key = bfin_kpad_find_key(bf54x_kpad, input, rowcol);
+
+ input_report_key(input, key, 1);
+ input_sync(input);
+
+ if (bfin_kpad_get_keypressed(bf54x_kpad)) {
+ disable_irq_nosync(bf54x_kpad->irq);
+ bf54x_kpad->lastkey = key;
+ mod_timer(&bf54x_kpad->timer,
+ jiffies + bf54x_kpad->keyup_test_jiffies);
+ } else {
+ input_report_key(input, key, 0);
+ input_sync(input);
+
+ bfin_kpad_clear_irq();
+ }
+
+ return IRQ_HANDLED;
+}
+
+static int __devinit bfin_kpad_probe(struct platform_device *pdev)
+{
+ struct bf54x_kpad *bf54x_kpad;
+ struct bfin_kpad_platform_data *pdata = pdev->dev.platform_data;
+ struct input_dev *input;
+ int i, error;
+
+ if (!pdata->rows || !pdata->cols || !pdata->keymap) {
+ dev_err(&pdev->dev, "no rows, cols or keymap from pdata\n");
+ return -EINVAL;
+ }
+
+ if (!pdata->keymapsize ||
+ pdata->keymapsize > (pdata->rows * pdata->cols)) {
+ dev_err(&pdev->dev, "invalid keymapsize\n");
+ return -EINVAL;
+ }
+
+ bf54x_kpad = kzalloc(sizeof(struct bf54x_kpad), GFP_KERNEL);
+ if (!bf54x_kpad)
+ return -ENOMEM;
+
+ platform_set_drvdata(pdev, bf54x_kpad);
+
+ /* Allocate memory for keymap followed by private LUT */
+ bf54x_kpad->keycode = kmalloc(pdata->keymapsize *
+ sizeof(unsigned short) * 2, GFP_KERNEL);
+ if (!bf54x_kpad->keycode) {
+ error = -ENOMEM;
+ goto out;
+ }
+
+ if (!pdata->debounce_time || pdata->debounce_time > MAX_MULT ||
+ !pdata->coldrive_time || pdata->coldrive_time > MAX_MULT) {
+ dev_warn(&pdev->dev,
+ "invalid platform debounce/columndrive time\n");
+ bfin_write_KPAD_MSEL(0xFF0); /* Default MSEL */
+ } else {
+ bfin_write_KPAD_MSEL(
+ ((pdata->debounce_time / TIME_SCALE)
+ & DBON_SCALE) |
+ (((pdata->coldrive_time / TIME_SCALE) << 8)
+ & COLDRV_SCALE));
+
+ }
+
+ if (!pdata->keyup_test_interval)
+ bf54x_kpad->keyup_test_jiffies = msecs_to_jiffies(50);
+ else
+ bf54x_kpad->keyup_test_jiffies =
+ msecs_to_jiffies(pdata->keyup_test_interval);
+
+ if (peripheral_request_list((u16 *)&per_rows[MAX_RC - pdata->rows],
+ DRV_NAME)) {
+ dev_err(&pdev->dev, "requesting peripherals failed\n");
+ error = -EFAULT;
+ goto out0;
+ }
+
+ if (peripheral_request_list((u16 *)&per_cols[MAX_RC - pdata->cols],
+ DRV_NAME)) {
+ dev_err(&pdev->dev, "requesting peripherals failed\n");
+ error = -EFAULT;
+ goto out1;
+ }
+
+ bf54x_kpad->irq = platform_get_irq(pdev, 0);
+ if (bf54x_kpad->irq < 0) {
+ error = -ENODEV;
+ goto out2;
+ }
+
+ error = request_irq(bf54x_kpad->irq, bfin_kpad_isr,
+ 0, DRV_NAME, pdev);
+ if (error) {
+ dev_err(&pdev->dev, "unable to claim irq %d\n",
+ bf54x_kpad->irq);
+ goto out2;
+ }
+
+ input = input_allocate_device();
+ if (!input) {
+ error = -ENOMEM;
+ goto out3;
+ }
+
+ bf54x_kpad->input = input;
+
+ input->name = pdev->name;
+ input->phys = "bf54x-keys/input0";
+ input->dev.parent = &pdev->dev;
+
+ input_set_drvdata(input, bf54x_kpad);
+
+ input->id.bustype = BUS_HOST;
+ input->id.vendor = 0x0001;
+ input->id.product = 0x0001;
+ input->id.version = 0x0100;
+
+ input->keycodesize = sizeof(unsigned short);
+ input->keycodemax = pdata->keymapsize;
+ input->keycode = bf54x_kpad->keycode;
+
+ bfin_keycodecpy(bf54x_kpad->keycode, pdata->keymap, pdata->keymapsize);
+
+ /* setup input device */
+ __set_bit(EV_KEY, input->evbit);
+
+ if (pdata->repeat)
+ __set_bit(EV_REP, input->evbit);
+
+ for (i = 0; i < input->keycodemax; i++)
+ __set_bit(bf54x_kpad->keycode[i] & KEY_MAX, input->keybit);
+ __clear_bit(KEY_RESERVED, input->keybit);
+
+ error = input_register_device(input);
+ if (error) {
+ dev_err(&pdev->dev, "unable to register input device\n");
+ goto out4;
+ }
+
+ /* Init Keypad Key Up/Release test timer */
+
+ setup_timer(&bf54x_kpad->timer, bfin_kpad_timer, (unsigned long) pdev);
+
+ bfin_write_KPAD_PRESCALE(bfin_kpad_get_prescale(TIME_SCALE));
+
+ bfin_write_KPAD_CTL((((pdata->cols - 1) << 13) & KPAD_COLEN) |
+ (((pdata->rows - 1) << 10) & KPAD_ROWEN) |
+ (2 & KPAD_IRQMODE));
+
+ bfin_write_KPAD_CTL(bfin_read_KPAD_CTL() | KPAD_EN);
+
+ device_init_wakeup(&pdev->dev, 1);
+
+ return 0;
+
+out4:
+ input_free_device(input);
+out3:
+ free_irq(bf54x_kpad->irq, pdev);
+out2:
+ peripheral_free_list((u16 *)&per_cols[MAX_RC - pdata->cols]);
+out1:
+ peripheral_free_list((u16 *)&per_rows[MAX_RC - pdata->rows]);
+out0:
+ kfree(bf54x_kpad->keycode);
+out:
+ kfree(bf54x_kpad);
+ platform_set_drvdata(pdev, NULL);
+
+ return error;
+}
+
+static int __devexit bfin_kpad_remove(struct platform_device *pdev)
+{
+ struct bfin_kpad_platform_data *pdata = pdev->dev.platform_data;
+ struct bf54x_kpad *bf54x_kpad = platform_get_drvdata(pdev);
+
+ del_timer_sync(&bf54x_kpad->timer);
+ free_irq(bf54x_kpad->irq, pdev);
+
+ input_unregister_device(bf54x_kpad->input);
+
+ peripheral_free_list((u16 *)&per_rows[MAX_RC - pdata->rows]);
+ peripheral_free_list((u16 *)&per_cols[MAX_RC - pdata->cols]);
+
+ kfree(bf54x_kpad->keycode);
+ kfree(bf54x_kpad);
+ platform_set_drvdata(pdev, NULL);
+
+ return 0;
+}
+
+#ifdef CONFIG_PM
+static int bfin_kpad_suspend(struct platform_device *pdev, pm_message_t state)
+{
+ struct bf54x_kpad *bf54x_kpad = platform_get_drvdata(pdev);
+
+ bf54x_kpad->kpad_msel = bfin_read_KPAD_MSEL();
+ bf54x_kpad->kpad_prescale = bfin_read_KPAD_PRESCALE();
+ bf54x_kpad->kpad_ctl = bfin_read_KPAD_CTL();
+
+ if (device_may_wakeup(&pdev->dev))
+ enable_irq_wake(bf54x_kpad->irq);
+
+ return 0;
+}
+
+static int bfin_kpad_resume(struct platform_device *pdev)
+{
+ struct bf54x_kpad *bf54x_kpad = platform_get_drvdata(pdev);
+
+ bfin_write_KPAD_MSEL(bf54x_kpad->kpad_msel);
+ bfin_write_KPAD_PRESCALE(bf54x_kpad->kpad_prescale);
+ bfin_write_KPAD_CTL(bf54x_kpad->kpad_ctl);
+
+ if (device_may_wakeup(&pdev->dev))
+ disable_irq_wake(bf54x_kpad->irq);
+
+ return 0;
+}
+#else
+# define bfin_kpad_suspend NULL
+# define bfin_kpad_resume NULL
+#endif
+
+struct platform_driver bfin_kpad_device_driver = {
+ .driver = {
+ .name = DRV_NAME,
+ .owner = THIS_MODULE,
+ },
+ .probe = bfin_kpad_probe,
+ .remove = __devexit_p(bfin_kpad_remove),
+ .suspend = bfin_kpad_suspend,
+ .resume = bfin_kpad_resume,
+};
+
+static int __init bfin_kpad_init(void)
+{
+ return platform_driver_register(&bfin_kpad_device_driver);
+}
+
+static void __exit bfin_kpad_exit(void)
+{
+ platform_driver_unregister(&bfin_kpad_device_driver);
+}
+
+module_init(bfin_kpad_init);
+module_exit(bfin_kpad_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
+MODULE_DESCRIPTION("Keypad driver for BF54x Processors");
+MODULE_ALIAS("platform:bf54x-keys");
diff --git a/drivers/input/keyboard/davinci_keyscan.c b/drivers/input/keyboard/davinci_keyscan.c
new file mode 100644
index 0000000..9d82b3a
--- /dev/null
+++ b/drivers/input/keyboard/davinci_keyscan.c
@@ -0,0 +1,346 @@
+/*
+ * DaVinci Key Scan Driver for TI platforms
+ *
+ * Copyright (C) 2009 Texas Instruments, Inc
+ *
+ * Author: Miguel Aguilar <miguel.aguilar@ridgerun.com>
+ *
+ * Initial Code: Sandeep Paulraj <s-paulraj@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/types.h>
+#include <linux/input.h>
+#include <linux/kernel.h>
+#include <linux/delay.h>
+#include <linux/platform_device.h>
+#include <linux/errno.h>
+#include <linux/slab.h>
+
+#include <asm/irq.h>
+
+#include <mach/hardware.h>
+#include <mach/irqs.h>
+#include <mach/keyscan.h>
+
+/* Key scan registers */
+#define DAVINCI_KEYSCAN_KEYCTRL 0x0000
+#define DAVINCI_KEYSCAN_INTENA 0x0004
+#define DAVINCI_KEYSCAN_INTFLAG 0x0008
+#define DAVINCI_KEYSCAN_INTCLR 0x000c
+#define DAVINCI_KEYSCAN_STRBWIDTH 0x0010
+#define DAVINCI_KEYSCAN_INTERVAL 0x0014
+#define DAVINCI_KEYSCAN_CONTTIME 0x0018
+#define DAVINCI_KEYSCAN_CURRENTST 0x001c
+#define DAVINCI_KEYSCAN_PREVSTATE 0x0020
+#define DAVINCI_KEYSCAN_EMUCTRL 0x0024
+#define DAVINCI_KEYSCAN_IODFTCTRL 0x002c
+
+/* Key Control Register (KEYCTRL) */
+#define DAVINCI_KEYSCAN_KEYEN 0x00000001
+#define DAVINCI_KEYSCAN_PREVMODE 0x00000002
+#define DAVINCI_KEYSCAN_CHATOFF 0x00000004
+#define DAVINCI_KEYSCAN_AUTODET 0x00000008
+#define DAVINCI_KEYSCAN_SCANMODE 0x00000010
+#define DAVINCI_KEYSCAN_OUTTYPE 0x00000020
+
+/* Masks for the interrupts */
+#define DAVINCI_KEYSCAN_INT_CONT 0x00000008
+#define DAVINCI_KEYSCAN_INT_OFF 0x00000004
+#define DAVINCI_KEYSCAN_INT_ON 0x00000002
+#define DAVINCI_KEYSCAN_INT_CHANGE 0x00000001
+#define DAVINCI_KEYSCAN_INT_ALL 0x0000000f
+
+struct davinci_ks {
+ struct input_dev *input;
+ struct davinci_ks_platform_data *pdata;
+ int irq;
+ void __iomem *base;
+ resource_size_t pbase;
+ size_t base_size;
+ unsigned short keymap[];
+};
+
+/* Initializing the kp Module */
+static int __init davinci_ks_initialize(struct davinci_ks *davinci_ks)
+{
+ struct device *dev = &davinci_ks->input->dev;
+ struct davinci_ks_platform_data *pdata = davinci_ks->pdata;
+ u32 matrix_ctrl;
+
+ /* Enable all interrupts */
+ __raw_writel(DAVINCI_KEYSCAN_INT_ALL,
+ davinci_ks->base + DAVINCI_KEYSCAN_INTENA);
+
+ /* Clear interrupts if any */
+ __raw_writel(DAVINCI_KEYSCAN_INT_ALL,
+ davinci_ks->base + DAVINCI_KEYSCAN_INTCLR);
+
+ /* Setup the scan period = strobe + interval */
+ __raw_writel(pdata->strobe,
+ davinci_ks->base + DAVINCI_KEYSCAN_STRBWIDTH);
+ __raw_writel(pdata->interval,
+ davinci_ks->base + DAVINCI_KEYSCAN_INTERVAL);
+ __raw_writel(0x01,
+ davinci_ks->base + DAVINCI_KEYSCAN_CONTTIME);
+
+ /* Define matrix type */
+ switch (pdata->matrix_type) {
+ case DAVINCI_KEYSCAN_MATRIX_4X4:
+ matrix_ctrl = 0;
+ break;
+ case DAVINCI_KEYSCAN_MATRIX_5X3:
+ matrix_ctrl = (1 << 6);
+ break;
+ default:
+ dev_err(dev->parent, "wrong matrix type\n");
+ return -EINVAL;
+ }
+
+ /* Enable key scan module and set matrix type */
+ __raw_writel(DAVINCI_KEYSCAN_AUTODET | DAVINCI_KEYSCAN_KEYEN |
+ matrix_ctrl, davinci_ks->base + DAVINCI_KEYSCAN_KEYCTRL);
+
+ return 0;
+}
+
+static irqreturn_t davinci_ks_interrupt(int irq, void *dev_id)
+{
+ struct davinci_ks *davinci_ks = dev_id;
+ struct device *dev = &davinci_ks->input->dev;
+ unsigned short *keymap = davinci_ks->keymap;
+ int keymapsize = davinci_ks->pdata->keymapsize;
+ u32 prev_status, new_status, changed;
+ bool release;
+ int keycode = KEY_UNKNOWN;
+ int i;
+
+ /* Disable interrupt */
+ __raw_writel(0x0, davinci_ks->base + DAVINCI_KEYSCAN_INTENA);
+
+ /* Reading previous and new status of the key scan */
+ prev_status = __raw_readl(davinci_ks->base + DAVINCI_KEYSCAN_PREVSTATE);
+ new_status = __raw_readl(davinci_ks->base + DAVINCI_KEYSCAN_CURRENTST);
+
+ changed = prev_status ^ new_status;
+
+ if (changed) {
+ /*
+ * It goes through all bits in 'changed' to ensure
+ * that no key changes are being missed
+ */
+ for (i = 0 ; i < keymapsize; i++) {
+ if ((changed>>i) & 0x1) {
+ keycode = keymap[i];
+ release = (new_status >> i) & 0x1;
+ dev_dbg(dev->parent, "key %d %s\n", keycode,
+ release ? "released" : "pressed");
+ input_report_key(davinci_ks->input, keycode,
+ !release);
+ input_sync(davinci_ks->input);
+ }
+ }
+ /* Clearing interrupt */
+ __raw_writel(DAVINCI_KEYSCAN_INT_ALL,
+ davinci_ks->base + DAVINCI_KEYSCAN_INTCLR);
+ }
+
+ /* Enable interrupts */
+ __raw_writel(0x1, davinci_ks->base + DAVINCI_KEYSCAN_INTENA);
+
+ return IRQ_HANDLED;
+}
+
+static int __init davinci_ks_probe(struct platform_device *pdev)
+{
+ struct davinci_ks *davinci_ks;
+ struct input_dev *key_dev;
+ struct resource *res, *mem;
+ struct device *dev = &pdev->dev;
+ struct davinci_ks_platform_data *pdata = pdev->dev.platform_data;
+ int error, i;
+
+ if (pdata->device_enable) {
+ error = pdata->device_enable(dev);
+ if (error < 0) {
+ dev_dbg(dev, "device enable function failed\n");
+ return error;
+ }
+ }
+
+ if (!pdata->keymap) {
+ dev_dbg(dev, "no keymap from pdata\n");
+ return -EINVAL;
+ }
+
+ davinci_ks = kzalloc(sizeof(struct davinci_ks) +
+ sizeof(unsigned short) * pdata->keymapsize, GFP_KERNEL);
+ if (!davinci_ks) {
+ dev_dbg(dev, "could not allocate memory for private data\n");
+ return -ENOMEM;
+ }
+
+ memcpy(davinci_ks->keymap, pdata->keymap,
+ sizeof(unsigned short) * pdata->keymapsize);
+
+ key_dev = input_allocate_device();
+ if (!key_dev) {
+ dev_dbg(dev, "could not allocate input device\n");
+ error = -ENOMEM;
+ goto fail1;
+ }
+
+ davinci_ks->input = key_dev;
+
+ davinci_ks->irq = platform_get_irq(pdev, 0);
+ if (davinci_ks->irq < 0) {
+ dev_err(dev, "no key scan irq\n");
+ error = davinci_ks->irq;
+ goto fail2;
+ }
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!res) {
+ dev_err(dev, "no mem resource\n");
+ error = -EINVAL;
+ goto fail2;
+ }
+
+ davinci_ks->pbase = res->start;
+ davinci_ks->base_size = resource_size(res);
+
+ mem = request_mem_region(davinci_ks->pbase, davinci_ks->base_size,
+ pdev->name);
+ if (!mem) {
+ dev_err(dev, "key scan registers at %08x are not free\n",
+ davinci_ks->pbase);
+ error = -EBUSY;
+ goto fail2;
+ }
+
+ davinci_ks->base = ioremap(davinci_ks->pbase, davinci_ks->base_size);
+ if (!davinci_ks->base) {
+ dev_err(dev, "can't ioremap MEM resource.\n");
+ error = -ENOMEM;
+ goto fail3;
+ }
+
+ /* Enable auto repeat feature of Linux input subsystem */
+ if (pdata->rep)
+ __set_bit(EV_REP, key_dev->evbit);
+
+ /* Setup input device */
+ __set_bit(EV_KEY, key_dev->evbit);
+
+ /* Setup the platform data */
+ davinci_ks->pdata = pdata;
+
+ for (i = 0; i < davinci_ks->pdata->keymapsize; i++)
+ __set_bit(davinci_ks->pdata->keymap[i], key_dev->keybit);
+
+ key_dev->name = "davinci_keyscan";
+ key_dev->phys = "davinci_keyscan/input0";
+ key_dev->dev.parent = &pdev->dev;
+ key_dev->id.bustype = BUS_HOST;
+ key_dev->id.vendor = 0x0001;
+ key_dev->id.product = 0x0001;
+ key_dev->id.version = 0x0001;
+ key_dev->keycode = davinci_ks->keymap;
+ key_dev->keycodesize = sizeof(davinci_ks->keymap[0]);
+ key_dev->keycodemax = davinci_ks->pdata->keymapsize;
+
+ error = input_register_device(davinci_ks->input);
+ if (error < 0) {
+ dev_err(dev, "unable to register davinci key scan device\n");
+ goto fail4;
+ }
+
+ error = request_irq(davinci_ks->irq, davinci_ks_interrupt,
+ 0, pdev->name, davinci_ks);
+ if (error < 0) {
+ dev_err(dev, "unable to register davinci key scan interrupt\n");
+ goto fail5;
+ }
+
+ error = davinci_ks_initialize(davinci_ks);
+ if (error < 0) {
+ dev_err(dev, "unable to initialize davinci key scan device\n");
+ goto fail6;
+ }
+
+ platform_set_drvdata(pdev, davinci_ks);
+ return 0;
+
+fail6:
+ free_irq(davinci_ks->irq, davinci_ks);
+fail5:
+ input_unregister_device(davinci_ks->input);
+ key_dev = NULL;
+fail4:
+ iounmap(davinci_ks->base);
+fail3:
+ release_mem_region(davinci_ks->pbase, davinci_ks->base_size);
+fail2:
+ input_free_device(key_dev);
+fail1:
+ kfree(davinci_ks);
+
+ return error;
+}
+
+static int __devexit davinci_ks_remove(struct platform_device *pdev)
+{
+ struct davinci_ks *davinci_ks = platform_get_drvdata(pdev);
+
+ free_irq(davinci_ks->irq, davinci_ks);
+
+ input_unregister_device(davinci_ks->input);
+
+ iounmap(davinci_ks->base);
+ release_mem_region(davinci_ks->pbase, davinci_ks->base_size);
+
+ platform_set_drvdata(pdev, NULL);
+
+ kfree(davinci_ks);
+
+ return 0;
+}
+
+static struct platform_driver davinci_ks_driver = {
+ .driver = {
+ .name = "davinci_keyscan",
+ .owner = THIS_MODULE,
+ },
+ .remove = __devexit_p(davinci_ks_remove),
+};
+
+static int __init davinci_ks_init(void)
+{
+ return platform_driver_probe(&davinci_ks_driver, davinci_ks_probe);
+}
+module_init(davinci_ks_init);
+
+static void __exit davinci_ks_exit(void)
+{
+ platform_driver_unregister(&davinci_ks_driver);
+}
+module_exit(davinci_ks_exit);
+
+MODULE_AUTHOR("Miguel Aguilar");
+MODULE_DESCRIPTION("Texas Instruments DaVinci Key Scan Driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/input/keyboard/ep93xx_keypad.c b/drivers/input/keyboard/ep93xx_keypad.c
new file mode 100644
index 0000000..4662c5d
--- /dev/null
+++ b/drivers/input/keyboard/ep93xx_keypad.c
@@ -0,0 +1,410 @@
+/*
+ * Driver for the Cirrus EP93xx matrix keypad controller.
+ *
+ * Copyright (c) 2008 H Hartley Sweeten <hsweeten@visionengravers.com>
+ *
+ * Based on the pxa27x matrix keypad controller by Rodolfo Giometti.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * NOTE:
+ *
+ * The 3-key reset is triggered by pressing the 3 keys in
+ * Row 0, Columns 2, 4, and 7 at the same time. This action can
+ * be disabled by setting the EP93XX_KEYPAD_DISABLE_3_KEY flag.
+ *
+ * Normal operation for the matrix does not autorepeat the key press.
+ * This action can be enabled by setting the EP93XX_KEYPAD_AUTOREPEAT
+ * flag.
+ */
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/interrupt.h>
+#include <linux/clk.h>
+#include <linux/io.h>
+#include <linux/input/matrix_keypad.h>
+#include <linux/slab.h>
+
+#include <mach/hardware.h>
+#include <mach/ep93xx_keypad.h>
+
+/*
+ * Keypad Interface Register offsets
+ */
+#define KEY_INIT 0x00 /* Key Scan Initialization register */
+#define KEY_DIAG 0x04 /* Key Scan Diagnostic register */
+#define KEY_REG 0x08 /* Key Value Capture register */
+
+/* Key Scan Initialization Register bit defines */
+#define KEY_INIT_DBNC_MASK (0x00ff0000)
+#define KEY_INIT_DBNC_SHIFT (16)
+#define KEY_INIT_DIS3KY (1<<15)
+#define KEY_INIT_DIAG (1<<14)
+#define KEY_INIT_BACK (1<<13)
+#define KEY_INIT_T2 (1<<12)
+#define KEY_INIT_PRSCL_MASK (0x000003ff)
+#define KEY_INIT_PRSCL_SHIFT (0)
+
+/* Key Scan Diagnostic Register bit defines */
+#define KEY_DIAG_MASK (0x0000003f)
+#define KEY_DIAG_SHIFT (0)
+
+/* Key Value Capture Register bit defines */
+#define KEY_REG_K (1<<15)
+#define KEY_REG_INT (1<<14)
+#define KEY_REG_2KEYS (1<<13)
+#define KEY_REG_1KEY (1<<12)
+#define KEY_REG_KEY2_MASK (0x00000fc0)
+#define KEY_REG_KEY2_SHIFT (6)
+#define KEY_REG_KEY1_MASK (0x0000003f)
+#define KEY_REG_KEY1_SHIFT (0)
+
+#define EP93XX_MATRIX_SIZE (EP93XX_MATRIX_ROWS * EP93XX_MATRIX_COLS)
+
+struct ep93xx_keypad {
+ struct ep93xx_keypad_platform_data *pdata;
+ struct input_dev *input_dev;
+ struct clk *clk;
+
+ void __iomem *mmio_base;
+
+ unsigned short keycodes[EP93XX_MATRIX_SIZE];
+
+ int key1;
+ int key2;
+
+ int irq;
+
+ bool enabled;
+};
+
+static irqreturn_t ep93xx_keypad_irq_handler(int irq, void *dev_id)
+{
+ struct ep93xx_keypad *keypad = dev_id;
+ struct input_dev *input_dev = keypad->input_dev;
+ unsigned int status;
+ int keycode, key1, key2;
+
+ status = __raw_readl(keypad->mmio_base + KEY_REG);
+
+ keycode = (status & KEY_REG_KEY1_MASK) >> KEY_REG_KEY1_SHIFT;
+ key1 = keypad->keycodes[keycode];
+
+ keycode = (status & KEY_REG_KEY2_MASK) >> KEY_REG_KEY2_SHIFT;
+ key2 = keypad->keycodes[keycode];
+
+ if (status & KEY_REG_2KEYS) {
+ if (keypad->key1 && key1 != keypad->key1 && key2 != keypad->key1)
+ input_report_key(input_dev, keypad->key1, 0);
+
+ if (keypad->key2 && key1 != keypad->key2 && key2 != keypad->key2)
+ input_report_key(input_dev, keypad->key2, 0);
+
+ input_report_key(input_dev, key1, 1);
+ input_report_key(input_dev, key2, 1);
+
+ keypad->key1 = key1;
+ keypad->key2 = key2;
+
+ } else if (status & KEY_REG_1KEY) {
+ if (keypad->key1 && key1 != keypad->key1)
+ input_report_key(input_dev, keypad->key1, 0);
+
+ if (keypad->key2 && key1 != keypad->key2)
+ input_report_key(input_dev, keypad->key2, 0);
+
+ input_report_key(input_dev, key1, 1);
+
+ keypad->key1 = key1;
+ keypad->key2 = 0;
+
+ } else {
+ input_report_key(input_dev, keypad->key1, 0);
+ input_report_key(input_dev, keypad->key2, 0);
+
+ keypad->key1 = keypad->key2 = 0;
+ }
+ input_sync(input_dev);
+
+ return IRQ_HANDLED;
+}
+
+static void ep93xx_keypad_config(struct ep93xx_keypad *keypad)
+{
+ struct ep93xx_keypad_platform_data *pdata = keypad->pdata;
+ unsigned int val = 0;
+
+ if (pdata->flags & EP93XX_KEYPAD_KDIV)
+ clk_set_rate(keypad->clk, EP93XX_KEYTCHCLK_DIV4);
+ else
+ clk_set_rate(keypad->clk, EP93XX_KEYTCHCLK_DIV16);
+
+ if (pdata->flags & EP93XX_KEYPAD_DISABLE_3_KEY)
+ val |= KEY_INIT_DIS3KY;
+ if (pdata->flags & EP93XX_KEYPAD_DIAG_MODE)
+ val |= KEY_INIT_DIAG;
+ if (pdata->flags & EP93XX_KEYPAD_BACK_DRIVE)
+ val |= KEY_INIT_BACK;
+ if (pdata->flags & EP93XX_KEYPAD_TEST_MODE)
+ val |= KEY_INIT_T2;
+
+ val |= ((pdata->debounce << KEY_INIT_DBNC_SHIFT) & KEY_INIT_DBNC_MASK);
+
+ val |= ((pdata->prescale << KEY_INIT_PRSCL_SHIFT) & KEY_INIT_PRSCL_MASK);
+
+ __raw_writel(val, keypad->mmio_base + KEY_INIT);
+}
+
+static int ep93xx_keypad_open(struct input_dev *pdev)
+{
+ struct ep93xx_keypad *keypad = input_get_drvdata(pdev);
+
+ if (!keypad->enabled) {
+ ep93xx_keypad_config(keypad);
+ clk_enable(keypad->clk);
+ keypad->enabled = true;
+ }
+
+ return 0;
+}
+
+static void ep93xx_keypad_close(struct input_dev *pdev)
+{
+ struct ep93xx_keypad *keypad = input_get_drvdata(pdev);
+
+ if (keypad->enabled) {
+ clk_disable(keypad->clk);
+ keypad->enabled = false;
+ }
+}
+
+
+#ifdef CONFIG_PM
+/*
+ * NOTE: I don't know if this is correct, or will work on the ep93xx.
+ *
+ * None of the existing ep93xx drivers have power management support.
+ * But, this is basically what the pxa27x_keypad driver does.
+ */
+static int ep93xx_keypad_suspend(struct platform_device *pdev,
+ pm_message_t state)
+{
+ struct ep93xx_keypad *keypad = platform_get_drvdata(pdev);
+ struct input_dev *input_dev = keypad->input_dev;
+
+ mutex_lock(&input_dev->mutex);
+
+ if (keypad->enabled) {
+ clk_disable(keypad->clk);
+ keypad->enabled = false;
+ }
+
+ mutex_unlock(&input_dev->mutex);
+
+ if (device_may_wakeup(&pdev->dev))
+ enable_irq_wake(keypad->irq);
+
+ return 0;
+}
+
+static int ep93xx_keypad_resume(struct platform_device *pdev)
+{
+ struct ep93xx_keypad *keypad = platform_get_drvdata(pdev);
+ struct input_dev *input_dev = keypad->input_dev;
+
+ if (device_may_wakeup(&pdev->dev))
+ disable_irq_wake(keypad->irq);
+
+ mutex_lock(&input_dev->mutex);
+
+ if (input_dev->users) {
+ if (!keypad->enabled) {
+ ep93xx_keypad_config(keypad);
+ clk_enable(keypad->clk);
+ keypad->enabled = true;
+ }
+ }
+
+ mutex_unlock(&input_dev->mutex);
+
+ return 0;
+}
+#else /* !CONFIG_PM */
+#define ep93xx_keypad_suspend NULL
+#define ep93xx_keypad_resume NULL
+#endif /* !CONFIG_PM */
+
+static int __devinit ep93xx_keypad_probe(struct platform_device *pdev)
+{
+ struct ep93xx_keypad *keypad;
+ const struct matrix_keymap_data *keymap_data;
+ struct input_dev *input_dev;
+ struct resource *res;
+ int err;
+
+ keypad = kzalloc(sizeof(struct ep93xx_keypad), GFP_KERNEL);
+ if (!keypad)
+ return -ENOMEM;
+
+ keypad->pdata = pdev->dev.platform_data;
+ if (!keypad->pdata) {
+ err = -EINVAL;
+ goto failed_free;
+ }
+
+ keymap_data = keypad->pdata->keymap_data;
+ if (!keymap_data) {
+ err = -EINVAL;
+ goto failed_free;
+ }
+
+ keypad->irq = platform_get_irq(pdev, 0);
+ if (!keypad->irq) {
+ err = -ENXIO;
+ goto failed_free;
+ }
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!res) {
+ err = -ENXIO;
+ goto failed_free;
+ }
+
+ res = request_mem_region(res->start, resource_size(res), pdev->name);
+ if (!res) {
+ err = -EBUSY;
+ goto failed_free;
+ }
+
+ keypad->mmio_base = ioremap(res->start, resource_size(res));
+ if (keypad->mmio_base == NULL) {
+ err = -ENXIO;
+ goto failed_free_mem;
+ }
+
+ err = ep93xx_keypad_acquire_gpio(pdev);
+ if (err)
+ goto failed_free_io;
+
+ keypad->clk = clk_get(&pdev->dev, NULL);
+ if (IS_ERR(keypad->clk)) {
+ err = PTR_ERR(keypad->clk);
+ goto failed_free_gpio;
+ }
+
+ input_dev = input_allocate_device();
+ if (!input_dev) {
+ err = -ENOMEM;
+ goto failed_put_clk;
+ }
+
+ keypad->input_dev = input_dev;
+
+ input_dev->name = pdev->name;
+ input_dev->id.bustype = BUS_HOST;
+ input_dev->open = ep93xx_keypad_open;
+ input_dev->close = ep93xx_keypad_close;
+ input_dev->dev.parent = &pdev->dev;
+ input_dev->keycode = keypad->keycodes;
+ input_dev->keycodesize = sizeof(keypad->keycodes[0]);
+ input_dev->keycodemax = ARRAY_SIZE(keypad->keycodes);
+
+ input_set_drvdata(input_dev, keypad);
+
+ input_dev->evbit[0] = BIT_MASK(EV_KEY);
+ if (keypad->pdata->flags & EP93XX_KEYPAD_AUTOREPEAT)
+ input_dev->evbit[0] |= BIT_MASK(EV_REP);
+
+ matrix_keypad_build_keymap(keymap_data, 3,
+ input_dev->keycode, input_dev->keybit);
+ platform_set_drvdata(pdev, keypad);
+
+ err = request_irq(keypad->irq, ep93xx_keypad_irq_handler,
+ 0, pdev->name, keypad);
+ if (err)
+ goto failed_free_dev;
+
+ err = input_register_device(input_dev);
+ if (err)
+ goto failed_free_irq;
+
+ device_init_wakeup(&pdev->dev, 1);
+
+ return 0;
+
+failed_free_irq:
+ free_irq(keypad->irq, pdev);
+ platform_set_drvdata(pdev, NULL);
+failed_free_dev:
+ input_free_device(input_dev);
+failed_put_clk:
+ clk_put(keypad->clk);
+failed_free_gpio:
+ ep93xx_keypad_release_gpio(pdev);
+failed_free_io:
+ iounmap(keypad->mmio_base);
+failed_free_mem:
+ release_mem_region(res->start, resource_size(res));
+failed_free:
+ kfree(keypad);
+ return err;
+}
+
+static int __devexit ep93xx_keypad_remove(struct platform_device *pdev)
+{
+ struct ep93xx_keypad *keypad = platform_get_drvdata(pdev);
+ struct resource *res;
+
+ free_irq(keypad->irq, pdev);
+
+ platform_set_drvdata(pdev, NULL);
+
+ if (keypad->enabled)
+ clk_disable(keypad->clk);
+ clk_put(keypad->clk);
+
+ input_unregister_device(keypad->input_dev);
+
+ ep93xx_keypad_release_gpio(pdev);
+
+ iounmap(keypad->mmio_base);
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ release_mem_region(res->start, resource_size(res));
+
+ kfree(keypad);
+
+ return 0;
+}
+
+static struct platform_driver ep93xx_keypad_driver = {
+ .driver = {
+ .name = "ep93xx-keypad",
+ .owner = THIS_MODULE,
+ },
+ .probe = ep93xx_keypad_probe,
+ .remove = __devexit_p(ep93xx_keypad_remove),
+ .suspend = ep93xx_keypad_suspend,
+ .resume = ep93xx_keypad_resume,
+};
+
+static int __init ep93xx_keypad_init(void)
+{
+ return platform_driver_register(&ep93xx_keypad_driver);
+}
+
+static void __exit ep93xx_keypad_exit(void)
+{
+ platform_driver_unregister(&ep93xx_keypad_driver);
+}
+
+module_init(ep93xx_keypad_init);
+module_exit(ep93xx_keypad_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("H Hartley Sweeten <hsweeten@visionengravers.com>");
+MODULE_DESCRIPTION("EP93xx Matrix Keypad Controller");
+MODULE_ALIAS("platform:ep93xx-keypad");
diff --git a/drivers/input/keyboard/gpio_keys.c b/drivers/input/keyboard/gpio_keys.c
new file mode 100644
index 0000000..ed1ed46
--- /dev/null
+++ b/drivers/input/keyboard/gpio_keys.c
@@ -0,0 +1,767 @@
+/*
+ * Driver for keys on GPIO lines capable of generating interrupts.
+ *
+ * Copyright 2005 Phil Blundell
+ * Copyright 2010, 2011 David Jander <david@protonic.nl>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+
+#include <linux/init.h>
+#include <linux/fs.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/sched.h>
+#include <linux/pm.h>
+#include <linux/slab.h>
+#include <linux/sysctl.h>
+#include <linux/proc_fs.h>
+#include <linux/delay.h>
+#include <linux/platform_device.h>
+#include <linux/input.h>
+#include <linux/gpio_keys.h>
+#include <linux/workqueue.h>
+#include <linux/gpio.h>
+#include <linux/of_platform.h>
+#include <linux/of_gpio.h>
+
+struct gpio_button_data {
+ struct gpio_keys_button *button;
+ struct input_dev *input;
+ struct timer_list timer;
+ struct work_struct work;
+ int timer_debounce; /* in msecs */
+ bool disabled;
+};
+
+struct gpio_keys_drvdata {
+ struct input_dev *input;
+ struct mutex disable_lock;
+ unsigned int n_buttons;
+ int (*enable)(struct device *dev);
+ void (*disable)(struct device *dev);
+ struct gpio_button_data data[0];
+};
+
+/*
+ * SYSFS interface for enabling/disabling keys and switches:
+ *
+ * There are 4 attributes under /sys/devices/platform/gpio-keys/
+ * keys [ro] - bitmap of keys (EV_KEY) which can be
+ * disabled
+ * switches [ro] - bitmap of switches (EV_SW) which can be
+ * disabled
+ * disabled_keys [rw] - bitmap of keys currently disabled
+ * disabled_switches [rw] - bitmap of switches currently disabled
+ *
+ * Userland can change these values and hence disable event generation
+ * for each key (or switch). Disabling a key means its interrupt line
+ * is disabled.
+ *
+ * For example, if we have following switches set up as gpio-keys:
+ * SW_DOCK = 5
+ * SW_CAMERA_LENS_COVER = 9
+ * SW_KEYPAD_SLIDE = 10
+ * SW_FRONT_PROXIMITY = 11
+ * This is read from switches:
+ * 11-9,5
+ * Next we want to disable proximity (11) and dock (5), we write:
+ * 11,5
+ * to file disabled_switches. Now proximity and dock IRQs are disabled.
+ * This can be verified by reading the file disabled_switches:
+ * 11,5
+ * If we now want to enable proximity (11) switch we write:
+ * 5
+ * to disabled_switches.
+ *
+ * We can disable only those keys which don't allow sharing the irq.
+ */
+
+/**
+ * get_n_events_by_type() - returns maximum number of events per @type
+ * @type: type of button (%EV_KEY, %EV_SW)
+ *
+ * Return value of this function can be used to allocate bitmap
+ * large enough to hold all bits for given type.
+ */
+static inline int get_n_events_by_type(int type)
+{
+ BUG_ON(type != EV_SW && type != EV_KEY);
+
+ return (type == EV_KEY) ? KEY_CNT : SW_CNT;
+}
+
+/**
+ * gpio_keys_disable_button() - disables given GPIO button
+ * @bdata: button data for button to be disabled
+ *
+ * Disables button pointed by @bdata. This is done by masking
+ * IRQ line. After this function is called, button won't generate
+ * input events anymore. Note that one can only disable buttons
+ * that don't share IRQs.
+ *
+ * Make sure that @bdata->disable_lock is locked when entering
+ * this function to avoid races when concurrent threads are
+ * disabling buttons at the same time.
+ */
+static void gpio_keys_disable_button(struct gpio_button_data *bdata)
+{
+ if (!bdata->disabled) {
+ /*
+ * Disable IRQ and possible debouncing timer.
+ */
+ disable_irq(gpio_to_irq(bdata->button->gpio));
+ if (bdata->timer_debounce)
+ del_timer_sync(&bdata->timer);
+
+ bdata->disabled = true;
+ }
+}
+
+/**
+ * gpio_keys_enable_button() - enables given GPIO button
+ * @bdata: button data for button to be disabled
+ *
+ * Enables given button pointed by @bdata.
+ *
+ * Make sure that @bdata->disable_lock is locked when entering
+ * this function to avoid races with concurrent threads trying
+ * to enable the same button at the same time.
+ */
+static void gpio_keys_enable_button(struct gpio_button_data *bdata)
+{
+ if (bdata->disabled) {
+ enable_irq(gpio_to_irq(bdata->button->gpio));
+ bdata->disabled = false;
+ }
+}
+
+/**
+ * gpio_keys_attr_show_helper() - fill in stringified bitmap of buttons
+ * @ddata: pointer to drvdata
+ * @buf: buffer where stringified bitmap is written
+ * @type: button type (%EV_KEY, %EV_SW)
+ * @only_disabled: does caller want only those buttons that are
+ * currently disabled or all buttons that can be
+ * disabled
+ *
+ * This function writes buttons that can be disabled to @buf. If
+ * @only_disabled is true, then @buf contains only those buttons
+ * that are currently disabled. Returns 0 on success or negative
+ * errno on failure.
+ */
+static ssize_t gpio_keys_attr_show_helper(struct gpio_keys_drvdata *ddata,
+ char *buf, unsigned int type,
+ bool only_disabled)
+{
+ int n_events = get_n_events_by_type(type);
+ unsigned long *bits;
+ ssize_t ret;
+ int i;
+
+ bits = kcalloc(BITS_TO_LONGS(n_events), sizeof(*bits), GFP_KERNEL);
+ if (!bits)
+ return -ENOMEM;
+
+ for (i = 0; i < ddata->n_buttons; i++) {
+ struct gpio_button_data *bdata = &ddata->data[i];
+
+ if (bdata->button->type != type)
+ continue;
+
+ if (only_disabled && !bdata->disabled)
+ continue;
+
+ __set_bit(bdata->button->code, bits);
+ }
+
+ ret = bitmap_scnlistprintf(buf, PAGE_SIZE - 2, bits, n_events);
+ buf[ret++] = '\n';
+ buf[ret] = '\0';
+
+ kfree(bits);
+
+ return ret;
+}
+
+/**
+ * gpio_keys_attr_store_helper() - enable/disable buttons based on given bitmap
+ * @ddata: pointer to drvdata
+ * @buf: buffer from userspace that contains stringified bitmap
+ * @type: button type (%EV_KEY, %EV_SW)
+ *
+ * This function parses stringified bitmap from @buf and disables/enables
+ * GPIO buttons accordinly. Returns 0 on success and negative error
+ * on failure.
+ */
+static ssize_t gpio_keys_attr_store_helper(struct gpio_keys_drvdata *ddata,
+ const char *buf, unsigned int type)
+{
+ int n_events = get_n_events_by_type(type);
+ unsigned long *bits;
+ ssize_t error;
+ int i;
+
+ bits = kcalloc(BITS_TO_LONGS(n_events), sizeof(*bits), GFP_KERNEL);
+ if (!bits)
+ return -ENOMEM;
+
+ error = bitmap_parselist(buf, bits, n_events);
+ if (error)
+ goto out;
+
+ /* First validate */
+ for (i = 0; i < ddata->n_buttons; i++) {
+ struct gpio_button_data *bdata = &ddata->data[i];
+
+ if (bdata->button->type != type)
+ continue;
+
+ if (test_bit(bdata->button->code, bits) &&
+ !bdata->button->can_disable) {
+ error = -EINVAL;
+ goto out;
+ }
+ }
+
+ mutex_lock(&ddata->disable_lock);
+
+ for (i = 0; i < ddata->n_buttons; i++) {
+ struct gpio_button_data *bdata = &ddata->data[i];
+
+ if (bdata->button->type != type)
+ continue;
+
+ if (test_bit(bdata->button->code, bits))
+ gpio_keys_disable_button(bdata);
+ else
+ gpio_keys_enable_button(bdata);
+ }
+
+ mutex_unlock(&ddata->disable_lock);
+
+out:
+ kfree(bits);
+ return error;
+}
+
+#define ATTR_SHOW_FN(name, type, only_disabled) \
+static ssize_t gpio_keys_show_##name(struct device *dev, \
+ struct device_attribute *attr, \
+ char *buf) \
+{ \
+ struct platform_device *pdev = to_platform_device(dev); \
+ struct gpio_keys_drvdata *ddata = platform_get_drvdata(pdev); \
+ \
+ return gpio_keys_attr_show_helper(ddata, buf, \
+ type, only_disabled); \
+}
+
+ATTR_SHOW_FN(keys, EV_KEY, false);
+ATTR_SHOW_FN(switches, EV_SW, false);
+ATTR_SHOW_FN(disabled_keys, EV_KEY, true);
+ATTR_SHOW_FN(disabled_switches, EV_SW, true);
+
+/*
+ * ATTRIBUTES:
+ *
+ * /sys/devices/platform/gpio-keys/keys [ro]
+ * /sys/devices/platform/gpio-keys/switches [ro]
+ */
+static DEVICE_ATTR(keys, S_IRUGO, gpio_keys_show_keys, NULL);
+static DEVICE_ATTR(switches, S_IRUGO, gpio_keys_show_switches, NULL);
+
+#define ATTR_STORE_FN(name, type) \
+static ssize_t gpio_keys_store_##name(struct device *dev, \
+ struct device_attribute *attr, \
+ const char *buf, \
+ size_t count) \
+{ \
+ struct platform_device *pdev = to_platform_device(dev); \
+ struct gpio_keys_drvdata *ddata = platform_get_drvdata(pdev); \
+ ssize_t error; \
+ \
+ error = gpio_keys_attr_store_helper(ddata, buf, type); \
+ if (error) \
+ return error; \
+ \
+ return count; \
+}
+
+ATTR_STORE_FN(disabled_keys, EV_KEY);
+ATTR_STORE_FN(disabled_switches, EV_SW);
+
+/*
+ * ATTRIBUTES:
+ *
+ * /sys/devices/platform/gpio-keys/disabled_keys [rw]
+ * /sys/devices/platform/gpio-keys/disables_switches [rw]
+ */
+static DEVICE_ATTR(disabled_keys, S_IWUSR | S_IRUGO,
+ gpio_keys_show_disabled_keys,
+ gpio_keys_store_disabled_keys);
+static DEVICE_ATTR(disabled_switches, S_IWUSR | S_IRUGO,
+ gpio_keys_show_disabled_switches,
+ gpio_keys_store_disabled_switches);
+
+static struct attribute *gpio_keys_attrs[] = {
+ &dev_attr_keys.attr,
+ &dev_attr_switches.attr,
+ &dev_attr_disabled_keys.attr,
+ &dev_attr_disabled_switches.attr,
+ NULL,
+};
+
+static struct attribute_group gpio_keys_attr_group = {
+ .attrs = gpio_keys_attrs,
+};
+
+static void gpio_keys_report_event(struct gpio_button_data *bdata)
+{
+ struct gpio_keys_button *button = bdata->button;
+ struct input_dev *input = bdata->input;
+ unsigned int type = button->type ?: EV_KEY;
+ int state = (gpio_get_value_cansleep(button->gpio) ? 1 : 0) ^ button->active_low;
+
+ if (type == EV_ABS) {
+ if (state)
+ input_event(input, type, button->code, button->value);
+ } else {
+ input_event(input, type, button->code, !!state);
+ }
+ input_sync(input);
+}
+
+static void gpio_keys_work_func(struct work_struct *work)
+{
+ struct gpio_button_data *bdata =
+ container_of(work, struct gpio_button_data, work);
+
+ gpio_keys_report_event(bdata);
+}
+
+static void gpio_keys_timer(unsigned long _data)
+{
+ struct gpio_button_data *data = (struct gpio_button_data *)_data;
+
+ schedule_work(&data->work);
+}
+
+static irqreturn_t gpio_keys_isr(int irq, void *dev_id)
+{
+ struct gpio_button_data *bdata = dev_id;
+ struct gpio_keys_button *button = bdata->button;
+
+ BUG_ON(irq != gpio_to_irq(button->gpio));
+
+ if (bdata->timer_debounce)
+ mod_timer(&bdata->timer,
+ jiffies + msecs_to_jiffies(bdata->timer_debounce));
+ else
+ schedule_work(&bdata->work);
+
+ return IRQ_HANDLED;
+}
+
+static int __devinit gpio_keys_setup_key(struct platform_device *pdev,
+ struct gpio_button_data *bdata,
+ struct gpio_keys_button *button)
+{
+ const char *desc = button->desc ? button->desc : "gpio_keys";
+ struct device *dev = &pdev->dev;
+ unsigned long irqflags;
+ int irq, error;
+
+ setup_timer(&bdata->timer, gpio_keys_timer, (unsigned long)bdata);
+ INIT_WORK(&bdata->work, gpio_keys_work_func);
+
+ error = gpio_request(button->gpio, desc);
+ if (error < 0) {
+ dev_err(dev, "failed to request GPIO %d, error %d\n",
+ button->gpio, error);
+ goto fail2;
+ }
+
+ error = gpio_direction_input(button->gpio);
+ if (error < 0) {
+ dev_err(dev, "failed to configure"
+ " direction for GPIO %d, error %d\n",
+ button->gpio, error);
+ goto fail3;
+ }
+
+ if (button->debounce_interval) {
+ error = gpio_set_debounce(button->gpio,
+ button->debounce_interval * 1000);
+ /* use timer if gpiolib doesn't provide debounce */
+ if (error < 0)
+ bdata->timer_debounce = button->debounce_interval;
+ }
+
+ irq = gpio_to_irq(button->gpio);
+ if (irq < 0) {
+ error = irq;
+ dev_err(dev, "Unable to get irq number for GPIO %d, error %d\n",
+ button->gpio, error);
+ goto fail3;
+ }
+
+ irqflags = IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING;
+ /*
+ * If platform has specified that the button can be disabled,
+ * we don't want it to share the interrupt line.
+ */
+ if (!button->can_disable)
+ irqflags |= IRQF_SHARED;
+
+ error = request_threaded_irq(irq, NULL, gpio_keys_isr, irqflags, desc, bdata);
+ if (error < 0) {
+ dev_err(dev, "Unable to claim irq %d; error %d\n",
+ irq, error);
+ goto fail3;
+ }
+
+ return 0;
+
+fail3:
+ gpio_free(button->gpio);
+fail2:
+ return error;
+}
+
+static int gpio_keys_open(struct input_dev *input)
+{
+ struct gpio_keys_drvdata *ddata = input_get_drvdata(input);
+
+ return ddata->enable ? ddata->enable(input->dev.parent) : 0;
+}
+
+static void gpio_keys_close(struct input_dev *input)
+{
+ struct gpio_keys_drvdata *ddata = input_get_drvdata(input);
+
+ if (ddata->disable)
+ ddata->disable(input->dev.parent);
+}
+
+/*
+ * Handlers for alternative sources of platform_data
+ */
+#ifdef CONFIG_OF
+/*
+ * Translate OpenFirmware node properties into platform_data
+ */
+static int gpio_keys_get_devtree_pdata(struct device *dev,
+ struct gpio_keys_platform_data *pdata)
+{
+ struct device_node *node, *pp;
+ int i;
+ struct gpio_keys_button *buttons;
+ u32 reg;
+
+ node = dev->of_node;
+ if (node == NULL)
+ return -ENODEV;
+
+ memset(pdata, 0, sizeof *pdata);
+
+ pdata->rep = !!of_get_property(node, "autorepeat", NULL);
+
+ /* First count the subnodes */
+ pdata->nbuttons = 0;
+ pp = NULL;
+ while ((pp = of_get_next_child(node, pp)))
+ pdata->nbuttons++;
+
+ if (pdata->nbuttons == 0)
+ return -ENODEV;
+
+ buttons = kzalloc(pdata->nbuttons * (sizeof *buttons), GFP_KERNEL);
+ if (!buttons)
+ return -ENOMEM;
+
+ pp = NULL;
+ i = 0;
+ while ((pp = of_get_next_child(node, pp))) {
+ enum of_gpio_flags flags;
+
+ if (!of_find_property(pp, "gpios", NULL)) {
+ pdata->nbuttons--;
+ dev_warn(dev, "Found button without gpios\n");
+ continue;
+ }
+ buttons[i].gpio = of_get_gpio_flags(pp, 0, &flags);
+ buttons[i].active_low = flags & OF_GPIO_ACTIVE_LOW;
+
+ if (of_property_read_u32(pp, "linux,code", ®)) {
+ dev_err(dev, "Button without keycode: 0x%x\n", buttons[i].gpio);
+ goto out_fail;
+ }
+ buttons[i].code = reg;
+
+ buttons[i].desc = of_get_property(pp, "label", NULL);
+
+ if (of_property_read_u32(pp, "linux,input-type", ®) == 0)
+ buttons[i].type = reg;
+ else
+ buttons[i].type = EV_KEY;
+
+ buttons[i].wakeup = !!of_get_property(pp, "gpio-key,wakeup", NULL);
+
+ if (of_property_read_u32(pp, "debounce-interval", ®) == 0)
+ buttons[i].debounce_interval = reg;
+ else
+ buttons[i].debounce_interval = 5;
+
+ i++;
+ }
+
+ pdata->buttons = buttons;
+
+ return 0;
+
+out_fail:
+ kfree(buttons);
+ return -ENODEV;
+}
+
+static struct of_device_id gpio_keys_of_match[] = {
+ { .compatible = "gpio-keys", },
+ { },
+};
+MODULE_DEVICE_TABLE(of, gpio_keys_of_match);
+
+#else
+
+static int gpio_keys_get_devtree_pdata(struct device *dev,
+ struct gpio_keys_platform_data *altp)
+{
+ return -ENODEV;
+}
+
+#define gpio_keys_of_match NULL
+
+#endif
+
+static int __devinit gpio_keys_probe(struct platform_device *pdev)
+{
+ struct gpio_keys_platform_data *pdata = pdev->dev.platform_data;
+ struct gpio_keys_drvdata *ddata;
+ struct device *dev = &pdev->dev;
+ struct gpio_keys_platform_data alt_pdata;
+ struct input_dev *input;
+ int i, error;
+ int wakeup = 0;
+
+ if (!pdata) {
+ error = gpio_keys_get_devtree_pdata(dev, &alt_pdata);
+ if (error)
+ return error;
+ pdata = &alt_pdata;
+ }
+
+ ddata = kzalloc(sizeof(struct gpio_keys_drvdata) +
+ pdata->nbuttons * sizeof(struct gpio_button_data),
+ GFP_KERNEL);
+ input = input_allocate_device();
+ if (!ddata || !input) {
+ dev_err(dev, "failed to allocate state\n");
+ error = -ENOMEM;
+ goto fail1;
+ }
+
+ ddata->input = input;
+ ddata->n_buttons = pdata->nbuttons;
+ ddata->enable = pdata->enable;
+ ddata->disable = pdata->disable;
+ mutex_init(&ddata->disable_lock);
+
+ platform_set_drvdata(pdev, ddata);
+ input_set_drvdata(input, ddata);
+
+ input->name = pdata->name ? : pdev->name;
+ input->phys = "gpio-keys/input0";
+ input->dev.parent = &pdev->dev;
+ input->open = gpio_keys_open;
+ input->close = gpio_keys_close;
+
+ input->id.bustype = BUS_HOST;
+ input->id.vendor = 0x0001;
+ input->id.product = 0x0001;
+ input->id.version = 0x0100;
+
+ /* Enable auto repeat feature of Linux input subsystem */
+ if (pdata->rep)
+ __set_bit(EV_REP, input->evbit);
+
+ for (i = 0; i < pdata->nbuttons; i++) {
+ struct gpio_keys_button *button = &pdata->buttons[i];
+ struct gpio_button_data *bdata = &ddata->data[i];
+ unsigned int type = button->type ?: EV_KEY;
+
+ bdata->input = input;
+ bdata->button = button;
+
+ error = gpio_keys_setup_key(pdev, bdata, button);
+ if (error)
+ goto fail2;
+
+ if (button->wakeup)
+ wakeup = 1;
+
+ input_set_capability(input, type, button->code);
+ }
+
+ error = sysfs_create_group(&pdev->dev.kobj, &gpio_keys_attr_group);
+ if (error) {
+ dev_err(dev, "Unable to export keys/switches, error: %d\n",
+ error);
+ goto fail2;
+ }
+
+ error = input_register_device(input);
+ if (error) {
+ dev_err(dev, "Unable to register input device, error: %d\n",
+ error);
+ goto fail3;
+ }
+
+ /* get current state of buttons */
+ for (i = 0; i < pdata->nbuttons; i++)
+ gpio_keys_report_event(&ddata->data[i]);
+ input_sync(input);
+
+ device_init_wakeup(&pdev->dev, wakeup);
+
+ return 0;
+
+ fail3:
+ sysfs_remove_group(&pdev->dev.kobj, &gpio_keys_attr_group);
+ fail2:
+ while (--i >= 0) {
+ free_irq(gpio_to_irq(pdata->buttons[i].gpio), &ddata->data[i]);
+ if (ddata->data[i].timer_debounce)
+ del_timer_sync(&ddata->data[i].timer);
+ cancel_work_sync(&ddata->data[i].work);
+ gpio_free(pdata->buttons[i].gpio);
+ }
+
+ platform_set_drvdata(pdev, NULL);
+ fail1:
+ input_free_device(input);
+ kfree(ddata);
+ /* If we have no platform_data, we allocated buttons dynamically. */
+ if (!pdev->dev.platform_data)
+ kfree(pdata->buttons);
+
+ return error;
+}
+
+static int __devexit gpio_keys_remove(struct platform_device *pdev)
+{
+ struct gpio_keys_drvdata *ddata = platform_get_drvdata(pdev);
+ struct input_dev *input = ddata->input;
+ int i;
+
+ sysfs_remove_group(&pdev->dev.kobj, &gpio_keys_attr_group);
+
+ device_init_wakeup(&pdev->dev, 0);
+
+ for (i = 0; i < ddata->n_buttons; i++) {
+ int irq = gpio_to_irq(ddata->data[i].button->gpio);
+ free_irq(irq, &ddata->data[i]);
+ if (ddata->data[i].timer_debounce)
+ del_timer_sync(&ddata->data[i].timer);
+ cancel_work_sync(&ddata->data[i].work);
+ gpio_free(ddata->data[i].button->gpio);
+ }
+
+ input_unregister_device(input);
+
+ /*
+ * If we had no platform_data, we allocated buttons dynamically, and
+ * must free them here. ddata->data[0].button is the pointer to the
+ * beginning of the allocated array.
+ */
+ if (!pdev->dev.platform_data)
+ kfree(ddata->data[0].button);
+
+ kfree(ddata);
+
+ return 0;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int gpio_keys_suspend(struct device *dev)
+{
+ struct gpio_keys_drvdata *ddata = dev_get_drvdata(dev);
+ int i;
+
+ if (device_may_wakeup(dev)) {
+ for (i = 0; i < ddata->n_buttons; i++) {
+ struct gpio_keys_button *button = ddata->data[i].button;
+ if (button->wakeup) {
+ int irq = gpio_to_irq(button->gpio);
+ enable_irq_wake(irq);
+ }
+ }
+ }
+
+ return 0;
+}
+
+static int gpio_keys_resume(struct device *dev)
+{
+ struct gpio_keys_drvdata *ddata = dev_get_drvdata(dev);
+ int i;
+
+ for (i = 0; i < ddata->n_buttons; i++) {
+
+ struct gpio_keys_button *button = ddata->data[i].button;
+ if (button->wakeup && device_may_wakeup(dev)) {
+ int irq = gpio_to_irq(button->gpio);
+ disable_irq_wake(irq);
+ }
+
+ gpio_keys_report_event(&ddata->data[i]);
+ }
+ input_sync(ddata->input);
+
+ return 0;
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(gpio_keys_pm_ops, gpio_keys_suspend, gpio_keys_resume);
+
+static struct platform_driver gpio_keys_device_driver = {
+ .probe = gpio_keys_probe,
+ .remove = __devexit_p(gpio_keys_remove),
+ .driver = {
+ .name = "gpio-keys",
+ .owner = THIS_MODULE,
+ .pm = &gpio_keys_pm_ops,
+ .of_match_table = gpio_keys_of_match,
+ }
+};
+
+static int __init gpio_keys_init(void)
+{
+ return platform_driver_register(&gpio_keys_device_driver);
+}
+
+static void __exit gpio_keys_exit(void)
+{
+ platform_driver_unregister(&gpio_keys_device_driver);
+}
+
+late_initcall(gpio_keys_init);
+module_exit(gpio_keys_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Phil Blundell <pb@handhelds.org>");
+MODULE_DESCRIPTION("Keyboard driver for GPIOs");
+MODULE_ALIAS("platform:gpio-keys");
diff --git a/drivers/input/keyboard/gpio_keys_polled.c b/drivers/input/keyboard/gpio_keys_polled.c
new file mode 100644
index 0000000..4c17aff
--- /dev/null
+++ b/drivers/input/keyboard/gpio_keys_polled.c
@@ -0,0 +1,261 @@
+/*
+ * Driver for buttons on GPIO lines not capable of generating interrupts
+ *
+ * Copyright (C) 2007-2010 Gabor Juhos <juhosg@openwrt.org>
+ * Copyright (C) 2010 Nuno Goncalves <nunojpg@gmail.com>
+ *
+ * This file was based on: /drivers/input/misc/cobalt_btns.c
+ * Copyright (C) 2007 Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
+ *
+ * also was based on: /drivers/input/keyboard/gpio_keys.c
+ * Copyright 2005 Phil Blundell
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/input.h>
+#include <linux/input-polldev.h>
+#include <linux/ioport.h>
+#include <linux/platform_device.h>
+#include <linux/gpio.h>
+#include <linux/gpio_keys.h>
+
+#define DRV_NAME "gpio-keys-polled"
+
+struct gpio_keys_button_data {
+ int last_state;
+ int count;
+ int threshold;
+ int can_sleep;
+};
+
+struct gpio_keys_polled_dev {
+ struct input_polled_dev *poll_dev;
+ struct device *dev;
+ struct gpio_keys_platform_data *pdata;
+ struct gpio_keys_button_data data[0];
+};
+
+static void gpio_keys_polled_check_state(struct input_dev *input,
+ struct gpio_keys_button *button,
+ struct gpio_keys_button_data *bdata)
+{
+ int state;
+
+ if (bdata->can_sleep)
+ state = !!gpio_get_value_cansleep(button->gpio);
+ else
+ state = !!gpio_get_value(button->gpio);
+
+ if (state != bdata->last_state) {
+ unsigned int type = button->type ?: EV_KEY;
+
+ input_event(input, type, button->code,
+ !!(state ^ button->active_low));
+ input_sync(input);
+ bdata->count = 0;
+ bdata->last_state = state;
+ }
+}
+
+static void gpio_keys_polled_poll(struct input_polled_dev *dev)
+{
+ struct gpio_keys_polled_dev *bdev = dev->private;
+ struct gpio_keys_platform_data *pdata = bdev->pdata;
+ struct input_dev *input = dev->input;
+ int i;
+
+ for (i = 0; i < bdev->pdata->nbuttons; i++) {
+ struct gpio_keys_button_data *bdata = &bdev->data[i];
+
+ if (bdata->count < bdata->threshold)
+ bdata->count++;
+ else
+ gpio_keys_polled_check_state(input, &pdata->buttons[i],
+ bdata);
+ }
+}
+
+static void gpio_keys_polled_open(struct input_polled_dev *dev)
+{
+ struct gpio_keys_polled_dev *bdev = dev->private;
+ struct gpio_keys_platform_data *pdata = bdev->pdata;
+
+ if (pdata->enable)
+ pdata->enable(bdev->dev);
+}
+
+static void gpio_keys_polled_close(struct input_polled_dev *dev)
+{
+ struct gpio_keys_polled_dev *bdev = dev->private;
+ struct gpio_keys_platform_data *pdata = bdev->pdata;
+
+ if (pdata->disable)
+ pdata->disable(bdev->dev);
+}
+
+static int __devinit gpio_keys_polled_probe(struct platform_device *pdev)
+{
+ struct gpio_keys_platform_data *pdata = pdev->dev.platform_data;
+ struct device *dev = &pdev->dev;
+ struct gpio_keys_polled_dev *bdev;
+ struct input_polled_dev *poll_dev;
+ struct input_dev *input;
+ int error;
+ int i;
+
+ if (!pdata || !pdata->poll_interval)
+ return -EINVAL;
+
+ bdev = kzalloc(sizeof(struct gpio_keys_polled_dev) +
+ pdata->nbuttons * sizeof(struct gpio_keys_button_data),
+ GFP_KERNEL);
+ if (!bdev) {
+ dev_err(dev, "no memory for private data\n");
+ return -ENOMEM;
+ }
+
+ poll_dev = input_allocate_polled_device();
+ if (!poll_dev) {
+ dev_err(dev, "no memory for polled device\n");
+ error = -ENOMEM;
+ goto err_free_bdev;
+ }
+
+ poll_dev->private = bdev;
+ poll_dev->poll = gpio_keys_polled_poll;
+ poll_dev->poll_interval = pdata->poll_interval;
+ poll_dev->open = gpio_keys_polled_open;
+ poll_dev->close = gpio_keys_polled_close;
+
+ input = poll_dev->input;
+
+ input->evbit[0] = BIT(EV_KEY);
+ input->name = pdev->name;
+ input->phys = DRV_NAME"/input0";
+ input->dev.parent = &pdev->dev;
+
+ input->id.bustype = BUS_HOST;
+ input->id.vendor = 0x0001;
+ input->id.product = 0x0001;
+ input->id.version = 0x0100;
+
+ for (i = 0; i < pdata->nbuttons; i++) {
+ struct gpio_keys_button *button = &pdata->buttons[i];
+ struct gpio_keys_button_data *bdata = &bdev->data[i];
+ unsigned int gpio = button->gpio;
+ unsigned int type = button->type ?: EV_KEY;
+
+ if (button->wakeup) {
+ dev_err(dev, DRV_NAME " does not support wakeup\n");
+ error = -EINVAL;
+ goto err_free_gpio;
+ }
+
+ error = gpio_request(gpio,
+ button->desc ? button->desc : DRV_NAME);
+ if (error) {
+ dev_err(dev, "unable to claim gpio %u, err=%d\n",
+ gpio, error);
+ goto err_free_gpio;
+ }
+
+ error = gpio_direction_input(gpio);
+ if (error) {
+ dev_err(dev,
+ "unable to set direction on gpio %u, err=%d\n",
+ gpio, error);
+ goto err_free_gpio;
+ }
+
+ bdata->can_sleep = gpio_cansleep(gpio);
+ bdata->last_state = -1;
+ bdata->threshold = DIV_ROUND_UP(button->debounce_interval,
+ pdata->poll_interval);
+
+ input_set_capability(input, type, button->code);
+ }
+
+ bdev->poll_dev = poll_dev;
+ bdev->dev = dev;
+ bdev->pdata = pdata;
+ platform_set_drvdata(pdev, bdev);
+
+ error = input_register_polled_device(poll_dev);
+ if (error) {
+ dev_err(dev, "unable to register polled device, err=%d\n",
+ error);
+ goto err_free_gpio;
+ }
+
+ /* report initial state of the buttons */
+ for (i = 0; i < pdata->nbuttons; i++)
+ gpio_keys_polled_check_state(input, &pdata->buttons[i],
+ &bdev->data[i]);
+
+ return 0;
+
+err_free_gpio:
+ while (--i >= 0)
+ gpio_free(pdata->buttons[i].gpio);
+
+ input_free_polled_device(poll_dev);
+
+err_free_bdev:
+ kfree(bdev);
+
+ platform_set_drvdata(pdev, NULL);
+ return error;
+}
+
+static int __devexit gpio_keys_polled_remove(struct platform_device *pdev)
+{
+ struct gpio_keys_polled_dev *bdev = platform_get_drvdata(pdev);
+ struct gpio_keys_platform_data *pdata = bdev->pdata;
+ int i;
+
+ input_unregister_polled_device(bdev->poll_dev);
+
+ for (i = 0; i < pdata->nbuttons; i++)
+ gpio_free(pdata->buttons[i].gpio);
+
+ input_free_polled_device(bdev->poll_dev);
+
+ kfree(bdev);
+ platform_set_drvdata(pdev, NULL);
+
+ return 0;
+}
+
+static struct platform_driver gpio_keys_polled_driver = {
+ .probe = gpio_keys_polled_probe,
+ .remove = __devexit_p(gpio_keys_polled_remove),
+ .driver = {
+ .name = DRV_NAME,
+ .owner = THIS_MODULE,
+ },
+};
+
+static int __init gpio_keys_polled_init(void)
+{
+ return platform_driver_register(&gpio_keys_polled_driver);
+}
+
+static void __exit gpio_keys_polled_exit(void)
+{
+ platform_driver_unregister(&gpio_keys_polled_driver);
+}
+
+module_init(gpio_keys_polled_init);
+module_exit(gpio_keys_polled_exit);
+
+MODULE_LICENSE("GPL v2");
+MODULE_AUTHOR("Gabor Juhos <juhosg@openwrt.org>");
+MODULE_DESCRIPTION("Polled GPIO Buttons driver");
+MODULE_ALIAS("platform:" DRV_NAME);
diff --git a/drivers/input/keyboard/hil_kbd.c b/drivers/input/keyboard/hil_kbd.c
new file mode 100644
index 0000000..fed31e0
--- /dev/null
+++ b/drivers/input/keyboard/hil_kbd.c
@@ -0,0 +1,597 @@
+/*
+ * Generic linux-input device driver for keyboard devices
+ *
+ * Copyright (c) 2001 Brian S. Julin
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL").
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ *
+ * References:
+ * HP-HIL Technical Reference Manual. Hewlett Packard Product No. 45918A
+ *
+ */
+
+#include <linux/hil.h>
+#include <linux/input.h>
+#include <linux/serio.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/completion.h>
+#include <linux/slab.h>
+#include <linux/pci_ids.h>
+
+#define PREFIX "HIL: "
+
+MODULE_AUTHOR("Brian S. Julin <bri@calyx.com>");
+MODULE_DESCRIPTION("HIL keyboard/mouse driver");
+MODULE_LICENSE("Dual BSD/GPL");
+MODULE_ALIAS("serio:ty03pr25id00ex*"); /* HIL keyboard */
+MODULE_ALIAS("serio:ty03pr25id0Fex*"); /* HIL mouse */
+
+#define HIL_PACKET_MAX_LENGTH 16
+
+#define HIL_KBD_SET1_UPBIT 0x01
+#define HIL_KBD_SET1_SHIFT 1
+static unsigned int hil_kbd_set1[HIL_KEYCODES_SET1_TBLSIZE] __read_mostly =
+ { HIL_KEYCODES_SET1 };
+
+#define HIL_KBD_SET2_UPBIT 0x01
+#define HIL_KBD_SET2_SHIFT 1
+/* Set2 is user defined */
+
+#define HIL_KBD_SET3_UPBIT 0x80
+#define HIL_KBD_SET3_SHIFT 0
+static unsigned int hil_kbd_set3[HIL_KEYCODES_SET3_TBLSIZE] __read_mostly =
+ { HIL_KEYCODES_SET3 };
+
+static const char hil_language[][16] = { HIL_LOCALE_MAP };
+
+struct hil_dev {
+ struct input_dev *dev;
+ struct serio *serio;
+
+ /* Input buffer and index for packets from HIL bus. */
+ hil_packet data[HIL_PACKET_MAX_LENGTH];
+ int idx4; /* four counts per packet */
+
+ /* Raw device info records from HIL bus, see hil.h for fields. */
+ char idd[HIL_PACKET_MAX_LENGTH]; /* DID byte and IDD record */
+ char rsc[HIL_PACKET_MAX_LENGTH]; /* RSC record */
+ char exd[HIL_PACKET_MAX_LENGTH]; /* EXD record */
+ char rnm[HIL_PACKET_MAX_LENGTH + 1]; /* RNM record + NULL term. */
+
+ struct completion cmd_done;
+
+ bool is_pointer;
+ /* Extra device details needed for pointing devices. */
+ unsigned int nbtn, naxes;
+ unsigned int btnmap[7];
+};
+
+static bool hil_dev_is_command_response(hil_packet p)
+{
+ if ((p & ~HIL_CMDCT_POL) == (HIL_ERR_INT | HIL_PKT_CMD | HIL_CMD_POL))
+ return false;
+
+ if ((p & ~HIL_CMDCT_RPL) == (HIL_ERR_INT | HIL_PKT_CMD | HIL_CMD_RPL))
+ return false;
+
+ return true;
+}
+
+static void hil_dev_handle_command_response(struct hil_dev *dev)
+{
+ hil_packet p;
+ char *buf;
+ int i, idx;
+
+ idx = dev->idx4 / 4;
+ p = dev->data[idx - 1];
+
+ switch (p & HIL_PKT_DATA_MASK) {
+ case HIL_CMD_IDD:
+ buf = dev->idd;
+ break;
+
+ case HIL_CMD_RSC:
+ buf = dev->rsc;
+ break;
+
+ case HIL_CMD_EXD:
+ buf = dev->exd;
+ break;
+
+ case HIL_CMD_RNM:
+ dev->rnm[HIL_PACKET_MAX_LENGTH] = 0;
+ buf = dev->rnm;
+ break;
+
+ default:
+ /* These occur when device isn't present */
+ if (p != (HIL_ERR_INT | HIL_PKT_CMD)) {
+ /* Anything else we'd like to know about. */
+ printk(KERN_WARNING PREFIX "Device sent unknown record %x\n", p);
+ }
+ goto out;
+ }
+
+ for (i = 0; i < idx; i++)
+ buf[i] = dev->data[i] & HIL_PKT_DATA_MASK;
+ for (; i < HIL_PACKET_MAX_LENGTH; i++)
+ buf[i] = 0;
+ out:
+ complete(&dev->cmd_done);
+}
+
+static void hil_dev_handle_kbd_events(struct hil_dev *kbd)
+{
+ struct input_dev *dev = kbd->dev;
+ int idx = kbd->idx4 / 4;
+ int i;
+
+ switch (kbd->data[0] & HIL_POL_CHARTYPE_MASK) {
+ case HIL_POL_CHARTYPE_NONE:
+ return;
+
+ case HIL_POL_CHARTYPE_ASCII:
+ for (i = 1; i < idx - 1; i++)
+ input_report_key(dev, kbd->data[i] & 0x7f, 1);
+ break;
+
+ case HIL_POL_CHARTYPE_RSVD1:
+ case HIL_POL_CHARTYPE_RSVD2:
+ case HIL_POL_CHARTYPE_BINARY:
+ for (i = 1; i < idx - 1; i++)
+ input_report_key(dev, kbd->data[i], 1);
+ break;
+
+ case HIL_POL_CHARTYPE_SET1:
+ for (i = 1; i < idx - 1; i++) {
+ unsigned int key = kbd->data[i];
+ int up = key & HIL_KBD_SET1_UPBIT;
+
+ key &= (~HIL_KBD_SET1_UPBIT & 0xff);
+ key = hil_kbd_set1[key >> HIL_KBD_SET1_SHIFT];
+ input_report_key(dev, key, !up);
+ }
+ break;
+
+ case HIL_POL_CHARTYPE_SET2:
+ for (i = 1; i < idx - 1; i++) {
+ unsigned int key = kbd->data[i];
+ int up = key & HIL_KBD_SET2_UPBIT;
+
+ key &= (~HIL_KBD_SET1_UPBIT & 0xff);
+ key = key >> HIL_KBD_SET2_SHIFT;
+ input_report_key(dev, key, !up);
+ }
+ break;
+
+ case HIL_POL_CHARTYPE_SET3:
+ for (i = 1; i < idx - 1; i++) {
+ unsigned int key = kbd->data[i];
+ int up = key & HIL_KBD_SET3_UPBIT;
+
+ key &= (~HIL_KBD_SET1_UPBIT & 0xff);
+ key = hil_kbd_set3[key >> HIL_KBD_SET3_SHIFT];
+ input_report_key(dev, key, !up);
+ }
+ break;
+ }
+
+ input_sync(dev);
+}
+
+static void hil_dev_handle_ptr_events(struct hil_dev *ptr)
+{
+ struct input_dev *dev = ptr->dev;
+ int idx = ptr->idx4 / 4;
+ hil_packet p = ptr->data[idx - 1];
+ int i, cnt, laxis;
+ bool absdev, ax16;
+
+ if ((p & HIL_CMDCT_POL) != idx - 1) {
+ printk(KERN_WARNING PREFIX
+ "Malformed poll packet %x (idx = %i)\n", p, idx);
+ return;
+ }
+
+ i = (p & HIL_POL_AXIS_ALT) ? 3 : 0;
+ laxis = (p & HIL_POL_NUM_AXES_MASK) + i;
+
+ ax16 = ptr->idd[1] & HIL_IDD_HEADER_16BIT; /* 8 or 16bit resolution */
+ absdev = ptr->idd[1] & HIL_IDD_HEADER_ABS;
+
+ for (cnt = 1; i < laxis; i++) {
+ unsigned int lo, hi, val;
+
+ lo = ptr->data[cnt++] & HIL_PKT_DATA_MASK;
+ hi = ax16 ? (ptr->data[cnt++] & HIL_PKT_DATA_MASK) : 0;
+
+ if (absdev) {
+ val = lo + (hi << 8);
+#ifdef TABLET_AUTOADJUST
+ if (val < input_abs_get_min(dev, ABS_X + i))
+ input_abs_set_min(dev, ABS_X + i, val);
+ if (val > input_abs_get_max(dev, ABS_X + i))
+ input_abs_set_max(dev, ABS_X + i, val);
+#endif
+ if (i % 3)
+ val = input_abs_get_max(dev, ABS_X + i) - val;
+ input_report_abs(dev, ABS_X + i, val);
+ } else {
+ val = (int) (((int8_t) lo) | ((int8_t) hi << 8));
+ if (i % 3)
+ val *= -1;
+ input_report_rel(dev, REL_X + i, val);
+ }
+ }
+
+ while (cnt < idx - 1) {
+ unsigned int btn = ptr->data[cnt++];
+ int up = btn & 1;
+
+ btn &= 0xfe;
+ if (btn == 0x8e)
+ continue; /* TODO: proximity == touch? */
+ if (btn > 0x8c || btn < 0x80)
+ continue;
+ btn = (btn - 0x80) >> 1;
+ btn = ptr->btnmap[btn];
+ input_report_key(dev, btn, !up);
+ }
+
+ input_sync(dev);
+}
+
+static void hil_dev_process_err(struct hil_dev *dev)
+{
+ printk(KERN_WARNING PREFIX "errored HIL packet\n");
+ dev->idx4 = 0;
+ complete(&dev->cmd_done); /* just in case somebody is waiting */
+}
+
+static irqreturn_t hil_dev_interrupt(struct serio *serio,
+ unsigned char data, unsigned int flags)
+{
+ struct hil_dev *dev;
+ hil_packet packet;
+ int idx;
+
+ dev = serio_get_drvdata(serio);
+ BUG_ON(dev == NULL);
+
+ if (dev->idx4 >= HIL_PACKET_MAX_LENGTH * sizeof(hil_packet)) {
+ hil_dev_process_err(dev);
+ goto out;
+ }
+
+ idx = dev->idx4 / 4;
+ if (!(dev->idx4 % 4))
+ dev->data[idx] = 0;
+ packet = dev->data[idx];
+ packet |= ((hil_packet)data) << ((3 - (dev->idx4 % 4)) * 8);
+ dev->data[idx] = packet;
+
+ /* Records of N 4-byte hil_packets must terminate with a command. */
+ if ((++dev->idx4 % 4) == 0) {
+ if ((packet & 0xffff0000) != HIL_ERR_INT) {
+ hil_dev_process_err(dev);
+ } else if (packet & HIL_PKT_CMD) {
+ if (hil_dev_is_command_response(packet))
+ hil_dev_handle_command_response(dev);
+ else if (dev->is_pointer)
+ hil_dev_handle_ptr_events(dev);
+ else
+ hil_dev_handle_kbd_events(dev);
+ dev->idx4 = 0;
+ }
+ }
+ out:
+ return IRQ_HANDLED;
+}
+
+static void hil_dev_disconnect(struct serio *serio)
+{
+ struct hil_dev *dev = serio_get_drvdata(serio);
+
+ BUG_ON(dev == NULL);
+
+ serio_close(serio);
+ input_unregister_device(dev->dev);
+ serio_set_drvdata(serio, NULL);
+ kfree(dev);
+}
+
+static void hil_dev_keyboard_setup(struct hil_dev *kbd)
+{
+ struct input_dev *input_dev = kbd->dev;
+ uint8_t did = kbd->idd[0];
+ int i;
+
+ input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP);
+ input_dev->ledbit[0] = BIT_MASK(LED_NUML) | BIT_MASK(LED_CAPSL) |
+ BIT_MASK(LED_SCROLLL);
+
+ for (i = 0; i < 128; i++) {
+ __set_bit(hil_kbd_set1[i], input_dev->keybit);
+ __set_bit(hil_kbd_set3[i], input_dev->keybit);
+ }
+ __clear_bit(KEY_RESERVED, input_dev->keybit);
+
+ input_dev->keycodemax = HIL_KEYCODES_SET1_TBLSIZE;
+ input_dev->keycodesize = sizeof(hil_kbd_set1[0]);
+ input_dev->keycode = hil_kbd_set1;
+
+ input_dev->name = strlen(kbd->rnm) ? kbd->rnm : "HIL keyboard";
+ input_dev->phys = "hpkbd/input0";
+
+ printk(KERN_INFO PREFIX "HIL keyboard found (did = 0x%02x, lang = %s)\n",
+ did, hil_language[did & HIL_IDD_DID_TYPE_KB_LANG_MASK]);
+}
+
+static void hil_dev_pointer_setup(struct hil_dev *ptr)
+{
+ struct input_dev *input_dev = ptr->dev;
+ uint8_t did = ptr->idd[0];
+ uint8_t *idd = ptr->idd + 1;
+ unsigned int naxsets = HIL_IDD_NUM_AXSETS(*idd);
+ unsigned int i, btntype;
+ const char *txt;
+
+ ptr->naxes = HIL_IDD_NUM_AXES_PER_SET(*idd);
+
+ switch (did & HIL_IDD_DID_TYPE_MASK) {
+ case HIL_IDD_DID_TYPE_REL:
+ input_dev->evbit[0] = BIT_MASK(EV_REL);
+
+ for (i = 0; i < ptr->naxes; i++)
+ __set_bit(REL_X + i, input_dev->relbit);
+
+ for (i = 3; naxsets > 1 && i < ptr->naxes + 3; i++)
+ __set_bit(REL_X + i, input_dev->relbit);
+
+ txt = "relative";
+ break;
+
+ case HIL_IDD_DID_TYPE_ABS:
+ input_dev->evbit[0] = BIT_MASK(EV_ABS);
+
+ for (i = 0; i < ptr->naxes; i++)
+ input_set_abs_params(input_dev, ABS_X + i,
+ 0, HIL_IDD_AXIS_MAX(idd, i), 0, 0);
+
+ for (i = 3; naxsets > 1 && i < ptr->naxes + 3; i++)
+ input_set_abs_params(input_dev, ABS_X + i,
+ 0, HIL_IDD_AXIS_MAX(idd, i - 3), 0, 0);
+
+#ifdef TABLET_AUTOADJUST
+ for (i = 0; i < ABS_MAX; i++) {
+ int diff = input_abs_get_max(input_dev, ABS_X + i) / 10;
+ input_abs_set_min(input_dev, ABS_X + i,
+ input_abs_get_min(input_dev, ABS_X + i) + diff);
+ input_abs_set_max(input_dev, ABS_X + i,
+ input_abs_get_max(input_dev, ABS_X + i) - diff);
+ }
+#endif
+
+ txt = "absolute";
+ break;
+
+ default:
+ BUG();
+ }
+
+ ptr->nbtn = HIL_IDD_NUM_BUTTONS(idd);
+ if (ptr->nbtn)
+ input_dev->evbit[0] |= BIT_MASK(EV_KEY);
+
+ btntype = BTN_MISC;
+ if ((did & HIL_IDD_DID_ABS_TABLET_MASK) == HIL_IDD_DID_ABS_TABLET)
+#ifdef TABLET_SIMULATES_MOUSE
+ btntype = BTN_TOUCH;
+#else
+ btntype = BTN_DIGI;
+#endif
+ if ((did & HIL_IDD_DID_ABS_TSCREEN_MASK) == HIL_IDD_DID_ABS_TSCREEN)
+ btntype = BTN_TOUCH;
+
+ if ((did & HIL_IDD_DID_REL_MOUSE_MASK) == HIL_IDD_DID_REL_MOUSE)
+ btntype = BTN_MOUSE;
+
+ for (i = 0; i < ptr->nbtn; i++) {
+ __set_bit(btntype | i, input_dev->keybit);
+ ptr->btnmap[i] = btntype | i;
+ }
+
+ if (btntype == BTN_MOUSE) {
+ /* Swap buttons 2 and 3 */
+ ptr->btnmap[1] = BTN_MIDDLE;
+ ptr->btnmap[2] = BTN_RIGHT;
+ }
+
+ input_dev->name = strlen(ptr->rnm) ? ptr->rnm : "HIL pointer device";
+
+ printk(KERN_INFO PREFIX
+ "HIL pointer device found (did: 0x%02x, axis: %s)\n",
+ did, txt);
+ printk(KERN_INFO PREFIX
+ "HIL pointer has %i buttons and %i sets of %i axes\n",
+ ptr->nbtn, naxsets, ptr->naxes);
+}
+
+static int hil_dev_connect(struct serio *serio, struct serio_driver *drv)
+{
+ struct hil_dev *dev;
+ struct input_dev *input_dev;
+ uint8_t did, *idd;
+ int error;
+
+ dev = kzalloc(sizeof(*dev), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!dev || !input_dev) {
+ error = -ENOMEM;
+ goto bail0;
+ }
+
+ dev->serio = serio;
+ dev->dev = input_dev;
+
+ error = serio_open(serio, drv);
+ if (error)
+ goto bail0;
+
+ serio_set_drvdata(serio, dev);
+
+ /* Get device info. MLC driver supplies devid/status/etc. */
+ init_completion(&dev->cmd_done);
+ serio_write(serio, 0);
+ serio_write(serio, 0);
+ serio_write(serio, HIL_PKT_CMD >> 8);
+ serio_write(serio, HIL_CMD_IDD);
+ error = wait_for_completion_killable(&dev->cmd_done);
+ if (error)
+ goto bail1;
+
+ init_completion(&dev->cmd_done);
+ serio_write(serio, 0);
+ serio_write(serio, 0);
+ serio_write(serio, HIL_PKT_CMD >> 8);
+ serio_write(serio, HIL_CMD_RSC);
+ error = wait_for_completion_killable(&dev->cmd_done);
+ if (error)
+ goto bail1;
+
+ init_completion(&dev->cmd_done);
+ serio_write(serio, 0);
+ serio_write(serio, 0);
+ serio_write(serio, HIL_PKT_CMD >> 8);
+ serio_write(serio, HIL_CMD_RNM);
+ error = wait_for_completion_killable(&dev->cmd_done);
+ if (error)
+ goto bail1;
+
+ init_completion(&dev->cmd_done);
+ serio_write(serio, 0);
+ serio_write(serio, 0);
+ serio_write(serio, HIL_PKT_CMD >> 8);
+ serio_write(serio, HIL_CMD_EXD);
+ error = wait_for_completion_killable(&dev->cmd_done);
+ if (error)
+ goto bail1;
+
+ did = dev->idd[0];
+ idd = dev->idd + 1;
+
+ switch (did & HIL_IDD_DID_TYPE_MASK) {
+ case HIL_IDD_DID_TYPE_KB_INTEGRAL:
+ case HIL_IDD_DID_TYPE_KB_ITF:
+ case HIL_IDD_DID_TYPE_KB_RSVD:
+ case HIL_IDD_DID_TYPE_CHAR:
+ if (HIL_IDD_NUM_BUTTONS(idd) ||
+ HIL_IDD_NUM_AXES_PER_SET(*idd)) {
+ printk(KERN_INFO PREFIX
+ "combo devices are not supported.\n");
+ goto bail1;
+ }
+
+ dev->is_pointer = false;
+ hil_dev_keyboard_setup(dev);
+ break;
+
+ case HIL_IDD_DID_TYPE_REL:
+ case HIL_IDD_DID_TYPE_ABS:
+ dev->is_pointer = true;
+ hil_dev_pointer_setup(dev);
+ break;
+
+ default:
+ goto bail1;
+ }
+
+ input_dev->id.bustype = BUS_HIL;
+ input_dev->id.vendor = PCI_VENDOR_ID_HP;
+ input_dev->id.product = 0x0001; /* TODO: get from kbd->rsc */
+ input_dev->id.version = 0x0100; /* TODO: get from kbd->rsc */
+ input_dev->dev.parent = &serio->dev;
+
+ if (!dev->is_pointer) {
+ serio_write(serio, 0);
+ serio_write(serio, 0);
+ serio_write(serio, HIL_PKT_CMD >> 8);
+ /* Enable Keyswitch Autorepeat 1 */
+ serio_write(serio, HIL_CMD_EK1);
+ /* No need to wait for completion */
+ }
+
+ error = input_register_device(input_dev);
+ if (error)
+ goto bail1;
+
+ return 0;
+
+ bail1:
+ serio_close(serio);
+ serio_set_drvdata(serio, NULL);
+ bail0:
+ input_free_device(input_dev);
+ kfree(dev);
+ return error;
+}
+
+static struct serio_device_id hil_dev_ids[] = {
+ {
+ .type = SERIO_HIL_MLC,
+ .proto = SERIO_HIL,
+ .id = SERIO_ANY,
+ .extra = SERIO_ANY,
+ },
+ { 0 }
+};
+
+MODULE_DEVICE_TABLE(serio, hil_dev_ids);
+
+static struct serio_driver hil_serio_drv = {
+ .driver = {
+ .name = "hil_dev",
+ },
+ .description = "HP HIL keyboard/mouse/tablet driver",
+ .id_table = hil_dev_ids,
+ .connect = hil_dev_connect,
+ .disconnect = hil_dev_disconnect,
+ .interrupt = hil_dev_interrupt
+};
+
+static int __init hil_dev_init(void)
+{
+ return serio_register_driver(&hil_serio_drv);
+}
+
+static void __exit hil_dev_exit(void)
+{
+ serio_unregister_driver(&hil_serio_drv);
+}
+
+module_init(hil_dev_init);
+module_exit(hil_dev_exit);
diff --git a/drivers/input/keyboard/hilkbd.c b/drivers/input/keyboard/hilkbd.c
new file mode 100644
index 0000000..5f72440
--- /dev/null
+++ b/drivers/input/keyboard/hilkbd.c
@@ -0,0 +1,398 @@
+/*
+ * linux/drivers/hil/hilkbd.c
+ *
+ * Copyright (C) 1998 Philip Blundell <philb@gnu.org>
+ * Copyright (C) 1999 Matthew Wilcox <willy@bofh.ai>
+ * Copyright (C) 1999-2007 Helge Deller <deller@gmx.de>
+ *
+ * Very basic HP Human Interface Loop (HIL) driver.
+ * This driver handles the keyboard on HP300 (m68k) and on some
+ * HP700 (parisc) series machines.
+ *
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License version 2. See the file COPYING in the main directory of this
+ * archive for more details.
+ */
+
+#include <linux/pci_ids.h>
+#include <linux/ioport.h>
+#include <linux/module.h>
+#include <linux/errno.h>
+#include <linux/input.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/hil.h>
+#include <linux/io.h>
+#include <linux/sched.h>
+#include <linux/spinlock.h>
+#include <asm/irq.h>
+#ifdef CONFIG_HP300
+#include <asm/hwtest.h>
+#endif
+
+
+MODULE_AUTHOR("Philip Blundell, Matthew Wilcox, Helge Deller");
+MODULE_DESCRIPTION("HIL keyboard driver (basic functionality)");
+MODULE_LICENSE("GPL v2");
+
+
+#if defined(CONFIG_PARISC)
+
+ #include <asm/io.h>
+ #include <asm/hardware.h>
+ #include <asm/parisc-device.h>
+ static unsigned long hil_base; /* HPA for the HIL device */
+ static unsigned int hil_irq;
+ #define HILBASE hil_base /* HPPA (parisc) port address */
+ #define HIL_DATA 0x800
+ #define HIL_CMD 0x801
+ #define HIL_IRQ hil_irq
+ #define hil_readb(p) gsc_readb(p)
+ #define hil_writeb(v,p) gsc_writeb((v),(p))
+
+#elif defined(CONFIG_HP300)
+
+ #define HILBASE 0xf0428000UL /* HP300 (m68k) port address */
+ #define HIL_DATA 0x1
+ #define HIL_CMD 0x3
+ #define HIL_IRQ 2
+ #define hil_readb(p) readb(p)
+ #define hil_writeb(v,p) writeb((v),(p))
+
+#else
+#error "HIL is not supported on this platform"
+#endif
+
+
+
+/* HIL helper functions */
+
+#define hil_busy() (hil_readb(HILBASE + HIL_CMD) & HIL_BUSY)
+#define hil_data_available() (hil_readb(HILBASE + HIL_CMD) & HIL_DATA_RDY)
+#define hil_status() (hil_readb(HILBASE + HIL_CMD))
+#define hil_command(x) do { hil_writeb((x), HILBASE + HIL_CMD); } while (0)
+#define hil_read_data() (hil_readb(HILBASE + HIL_DATA))
+#define hil_write_data(x) do { hil_writeb((x), HILBASE + HIL_DATA); } while (0)
+
+/* HIL constants */
+
+#define HIL_BUSY 0x02
+#define HIL_DATA_RDY 0x01
+
+#define HIL_SETARD 0xA0 /* set auto-repeat delay */
+#define HIL_SETARR 0xA2 /* set auto-repeat rate */
+#define HIL_SETTONE 0xA3 /* set tone generator */
+#define HIL_CNMT 0xB2 /* clear nmi */
+#define HIL_INTON 0x5C /* Turn on interrupts. */
+#define HIL_INTOFF 0x5D /* Turn off interrupts. */
+
+#define HIL_READKBDSADR 0xF9
+#define HIL_WRITEKBDSADR 0xE9
+
+static unsigned int hphilkeyb_keycode[HIL_KEYCODES_SET1_TBLSIZE] __read_mostly =
+ { HIL_KEYCODES_SET1 };
+
+/* HIL structure */
+static struct {
+ struct input_dev *dev;
+
+ unsigned int curdev;
+
+ unsigned char s;
+ unsigned char c;
+ int valid;
+
+ unsigned char data[16];
+ unsigned int ptr;
+ spinlock_t lock;
+
+ void *dev_id; /* native bus device */
+} hil_dev;
+
+
+static void poll_finished(void)
+{
+ int down;
+ int key;
+ unsigned char scode;
+
+ switch (hil_dev.data[0]) {
+ case 0x40:
+ down = (hil_dev.data[1] & 1) == 0;
+ scode = hil_dev.data[1] >> 1;
+ key = hphilkeyb_keycode[scode];
+ input_report_key(hil_dev.dev, key, down);
+ break;
+ }
+ hil_dev.curdev = 0;
+}
+
+
+static inline void handle_status(unsigned char s, unsigned char c)
+{
+ if (c & 0x8) {
+ /* End of block */
+ if (c & 0x10)
+ poll_finished();
+ } else {
+ if (c & 0x10) {
+ if (hil_dev.curdev)
+ poll_finished(); /* just in case */
+ hil_dev.curdev = c & 7;
+ hil_dev.ptr = 0;
+ }
+ }
+}
+
+
+static inline void handle_data(unsigned char s, unsigned char c)
+{
+ if (hil_dev.curdev) {
+ hil_dev.data[hil_dev.ptr++] = c;
+ hil_dev.ptr &= 15;
+ }
+}
+
+
+/* handle HIL interrupts */
+static irqreturn_t hil_interrupt(int irq, void *handle)
+{
+ unsigned char s, c;
+
+ s = hil_status();
+ c = hil_read_data();
+
+ switch (s >> 4) {
+ case 0x5:
+ handle_status(s, c);
+ break;
+ case 0x6:
+ handle_data(s, c);
+ break;
+ case 0x4:
+ hil_dev.s = s;
+ hil_dev.c = c;
+ mb();
+ hil_dev.valid = 1;
+ break;
+ }
+ return IRQ_HANDLED;
+}
+
+
+/* send a command to the HIL */
+static void hil_do(unsigned char cmd, unsigned char *data, unsigned int len)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&hil_dev.lock, flags);
+ while (hil_busy())
+ /* wait */;
+ hil_command(cmd);
+ while (len--) {
+ while (hil_busy())
+ /* wait */;
+ hil_write_data(*(data++));
+ }
+ spin_unlock_irqrestore(&hil_dev.lock, flags);
+}
+
+
+/* initialize HIL */
+static int __devinit hil_keyb_init(void)
+{
+ unsigned char c;
+ unsigned int i, kbid;
+ wait_queue_head_t hil_wait;
+ int err;
+
+ if (hil_dev.dev)
+ return -ENODEV; /* already initialized */
+
+ init_waitqueue_head(&hil_wait);
+ spin_lock_init(&hil_dev.lock);
+
+ hil_dev.dev = input_allocate_device();
+ if (!hil_dev.dev)
+ return -ENOMEM;
+
+ err = request_irq(HIL_IRQ, hil_interrupt, 0, "hil", hil_dev.dev_id);
+ if (err) {
+ printk(KERN_ERR "HIL: Can't get IRQ\n");
+ goto err1;
+ }
+
+ /* Turn on interrupts */
+ hil_do(HIL_INTON, NULL, 0);
+
+ /* Look for keyboards */
+ hil_dev.valid = 0; /* clear any pending data */
+ hil_do(HIL_READKBDSADR, NULL, 0);
+
+ wait_event_interruptible_timeout(hil_wait, hil_dev.valid, 3 * HZ);
+ if (!hil_dev.valid)
+ printk(KERN_WARNING "HIL: timed out, assuming no keyboard present\n");
+
+ c = hil_dev.c;
+ hil_dev.valid = 0;
+ if (c == 0) {
+ kbid = -1;
+ printk(KERN_WARNING "HIL: no keyboard present\n");
+ } else {
+ kbid = ffz(~c);
+ printk(KERN_INFO "HIL: keyboard found at id %d\n", kbid);
+ }
+
+ /* set it to raw mode */
+ c = 0;
+ hil_do(HIL_WRITEKBDSADR, &c, 1);
+
+ for (i = 0; i < HIL_KEYCODES_SET1_TBLSIZE; i++)
+ if (hphilkeyb_keycode[i] != KEY_RESERVED)
+ __set_bit(hphilkeyb_keycode[i], hil_dev.dev->keybit);
+
+ hil_dev.dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP);
+ hil_dev.dev->ledbit[0] = BIT_MASK(LED_NUML) | BIT_MASK(LED_CAPSL) |
+ BIT_MASK(LED_SCROLLL);
+ hil_dev.dev->keycodemax = HIL_KEYCODES_SET1_TBLSIZE;
+ hil_dev.dev->keycodesize= sizeof(hphilkeyb_keycode[0]);
+ hil_dev.dev->keycode = hphilkeyb_keycode;
+ hil_dev.dev->name = "HIL keyboard";
+ hil_dev.dev->phys = "hpkbd/input0";
+
+ hil_dev.dev->id.bustype = BUS_HIL;
+ hil_dev.dev->id.vendor = PCI_VENDOR_ID_HP;
+ hil_dev.dev->id.product = 0x0001;
+ hil_dev.dev->id.version = 0x0010;
+
+ err = input_register_device(hil_dev.dev);
+ if (err) {
+ printk(KERN_ERR "HIL: Can't register device\n");
+ goto err2;
+ }
+
+ printk(KERN_INFO "input: %s, ID %d at 0x%08lx (irq %d) found and attached\n",
+ hil_dev.dev->name, kbid, HILBASE, HIL_IRQ);
+
+ return 0;
+
+err2:
+ hil_do(HIL_INTOFF, NULL, 0);
+ free_irq(HIL_IRQ, hil_dev.dev_id);
+err1:
+ input_free_device(hil_dev.dev);
+ hil_dev.dev = NULL;
+ return err;
+}
+
+static void __devexit hil_keyb_exit(void)
+{
+ if (HIL_IRQ)
+ free_irq(HIL_IRQ, hil_dev.dev_id);
+
+ /* Turn off interrupts */
+ hil_do(HIL_INTOFF, NULL, 0);
+
+ input_unregister_device(hil_dev.dev);
+ hil_dev.dev = NULL;
+}
+
+#if defined(CONFIG_PARISC)
+static int __devinit hil_probe_chip(struct parisc_device *dev)
+{
+ /* Only allow one HIL keyboard */
+ if (hil_dev.dev)
+ return -ENODEV;
+
+ if (!dev->irq) {
+ printk(KERN_WARNING "HIL: IRQ not found for HIL bus at 0x%p\n",
+ (void *)dev->hpa.start);
+ return -ENODEV;
+ }
+
+ hil_base = dev->hpa.start;
+ hil_irq = dev->irq;
+ hil_dev.dev_id = dev;
+
+ printk(KERN_INFO "Found HIL bus at 0x%08lx, IRQ %d\n", hil_base, hil_irq);
+
+ return hil_keyb_init();
+}
+
+static int __devexit hil_remove_chip(struct parisc_device *dev)
+{
+ hil_keyb_exit();
+
+ return 0;
+}
+
+static struct parisc_device_id hil_tbl[] = {
+ { HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x00073 },
+ { 0, }
+};
+
+#if 0
+/* Disabled to avoid conflicts with the HP SDC HIL drivers */
+MODULE_DEVICE_TABLE(parisc, hil_tbl);
+#endif
+
+static struct parisc_driver hil_driver = {
+ .name = "hil",
+ .id_table = hil_tbl,
+ .probe = hil_probe_chip,
+ .remove = __devexit_p(hil_remove_chip),
+};
+
+static int __init hil_init(void)
+{
+ return register_parisc_driver(&hil_driver);
+}
+
+static void __exit hil_exit(void)
+{
+ unregister_parisc_driver(&hil_driver);
+}
+
+#else /* !CONFIG_PARISC */
+
+static int __init hil_init(void)
+{
+ int error;
+
+ /* Only allow one HIL keyboard */
+ if (hil_dev.dev)
+ return -EBUSY;
+
+ if (!MACH_IS_HP300)
+ return -ENODEV;
+
+ if (!hwreg_present((void *)(HILBASE + HIL_DATA))) {
+ printk(KERN_ERR "HIL: hardware register was not found\n");
+ return -ENODEV;
+ }
+
+ if (!request_region(HILBASE + HIL_DATA, 2, "hil")) {
+ printk(KERN_ERR "HIL: IOPORT region already used\n");
+ return -EIO;
+ }
+
+ error = hil_keyb_init();
+ if (error) {
+ release_region(HILBASE + HIL_DATA, 2);
+ return error;
+ }
+
+ return 0;
+}
+
+static void __exit hil_exit(void)
+{
+ hil_keyb_exit();
+ release_region(HILBASE + HIL_DATA, 2);
+}
+
+#endif /* CONFIG_PARISC */
+
+module_init(hil_init);
+module_exit(hil_exit);
diff --git a/drivers/input/keyboard/hpps2atkbd.h b/drivers/input/keyboard/hpps2atkbd.h
new file mode 100644
index 0000000..dc33f69
--- /dev/null
+++ b/drivers/input/keyboard/hpps2atkbd.h
@@ -0,0 +1,110 @@
+/*
+ * drivers/input/keyboard/hpps2atkbd.h
+ *
+ * Copyright (c) 2004 Helge Deller <deller@gmx.de>
+ * Copyright (c) 2002 Laurent Canet <canetl@esiee.fr>
+ * Copyright (c) 2002 Thibaut Varene <varenet@parisc-linux.org>
+ * Copyright (c) 2000 Xavier Debacker <debackex@esiee.fr>
+ *
+ * HP PS/2 AT-compatible Keyboard, found in PA/RISC Workstations & Laptops
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+
+/* Is the keyboard an RDI PrecisionBook? */
+#ifndef CONFIG_KEYBOARD_ATKBD_RDI_KEYCODES
+# define CONFLICT(x,y) x
+#else
+# define CONFLICT(x,y) y
+#endif
+
+/* sadly RDI (Tadpole) decided to ship a different keyboard layout
+ than HP for their PS/2 laptop keyboard which leads to conflicting
+ keycodes between a normal HP PS/2 keyboard and a RDI Precisionbook.
+ HP: RDI: */
+#define C_07 CONFLICT( KEY_F12, KEY_F1 )
+#define C_11 CONFLICT( KEY_LEFTALT, KEY_LEFTCTRL )
+#define C_14 CONFLICT( KEY_LEFTCTRL, KEY_CAPSLOCK )
+#define C_58 CONFLICT( KEY_CAPSLOCK, KEY_RIGHTCTRL )
+#define C_61 CONFLICT( KEY_102ND, KEY_LEFT )
+
+/* Raw SET 2 scancode table */
+
+/* 00 */ KEY_RESERVED, KEY_F9, KEY_RESERVED, KEY_F5, KEY_F3, KEY_F1, KEY_F2, C_07,
+/* 08 */ KEY_ESC, KEY_F10, KEY_F8, KEY_F6, KEY_F4, KEY_TAB, KEY_GRAVE, KEY_F2,
+/* 10 */ KEY_RESERVED, C_11, KEY_LEFTSHIFT, KEY_RESERVED, C_14, KEY_Q, KEY_1, KEY_F3,
+/* 18 */ KEY_RESERVED, KEY_LEFTALT, KEY_Z, KEY_S, KEY_A, KEY_W, KEY_2, KEY_F4,
+/* 20 */ KEY_RESERVED, KEY_C, KEY_X, KEY_D, KEY_E, KEY_4, KEY_3, KEY_F5,
+/* 28 */ KEY_RESERVED, KEY_SPACE, KEY_V, KEY_F, KEY_T, KEY_R, KEY_5, KEY_F6,
+/* 30 */ KEY_RESERVED, KEY_N, KEY_B, KEY_H, KEY_G, KEY_Y, KEY_6, KEY_F7,
+/* 38 */ KEY_RESERVED, KEY_RIGHTALT, KEY_M, KEY_J, KEY_U, KEY_7, KEY_8, KEY_F8,
+/* 40 */ KEY_RESERVED, KEY_COMMA, KEY_K, KEY_I, KEY_O, KEY_0, KEY_9, KEY_F9,
+/* 48 */ KEY_RESERVED, KEY_DOT, KEY_SLASH, KEY_L, KEY_SEMICOLON, KEY_P, KEY_MINUS, KEY_F10,
+/* 50 */ KEY_RESERVED, KEY_RESERVED, KEY_APOSTROPHE,KEY_RESERVED, KEY_LEFTBRACE, KEY_EQUAL, KEY_F11, KEY_SYSRQ,
+/* 58 */ C_58, KEY_RIGHTSHIFT,KEY_ENTER, KEY_RIGHTBRACE,KEY_BACKSLASH, KEY_BACKSLASH,KEY_F12, KEY_SCROLLLOCK,
+/* 60 */ KEY_DOWN, C_61, KEY_PAUSE, KEY_UP, KEY_DELETE, KEY_END, KEY_BACKSPACE, KEY_INSERT,
+/* 68 */ KEY_RESERVED, KEY_KP1, KEY_RIGHT, KEY_KP4, KEY_KP7, KEY_PAGEDOWN, KEY_HOME, KEY_PAGEUP,
+/* 70 */ KEY_KP0, KEY_KPDOT, KEY_KP2, KEY_KP5, KEY_KP6, KEY_KP8, KEY_ESC, KEY_NUMLOCK,
+/* 78 */ KEY_F11, KEY_KPPLUS, KEY_KP3, KEY_KPMINUS, KEY_KPASTERISK,KEY_KP9, KEY_SCROLLLOCK,KEY_102ND,
+/* 80 */ KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+/* 88 */ KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+/* 90 */ KEY_RESERVED, KEY_RIGHTALT, 255, KEY_RESERVED, KEY_RIGHTCTRL, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+/* 98 */ KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_CAPSLOCK, KEY_RESERVED, KEY_LEFTMETA,
+/* a0 */ KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RIGHTMETA,
+/* a8 */ KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_COMPOSE,
+/* b0 */ KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+/* b8 */ KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+/* c0 */ KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+/* c8 */ KEY_RESERVED, KEY_RESERVED, KEY_KPSLASH, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+/* d0 */ KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+/* d8 */ KEY_RESERVED, KEY_RESERVED, KEY_KPENTER, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+/* e0 */ KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+/* e8 */ KEY_RESERVED, KEY_END, KEY_RESERVED, KEY_LEFT, KEY_HOME, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+/* f0 */ KEY_INSERT, KEY_DELETE, KEY_DOWN, KEY_RESERVED, KEY_RIGHT, KEY_UP, KEY_RESERVED, KEY_PAUSE,
+/* f8 */ KEY_RESERVED, KEY_RESERVED, KEY_PAGEDOWN, KEY_RESERVED, KEY_SYSRQ, KEY_PAGEUP, KEY_RESERVED, KEY_RESERVED,
+
+/* These are offset for escaped keycodes: */
+
+/* 00 */ KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_F7, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+/* 08 */ KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_LEFTMETA, KEY_RIGHTMETA, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+/* 10 */ KEY_RESERVED, KEY_RIGHTALT, KEY_RESERVED, KEY_RESERVED, KEY_RIGHTCTRL, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+/* 18 */ KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+/* 20 */ KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+/* 28 */ KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+/* 30 */ KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+/* 38 */ KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+/* 40 */ KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+/* 48 */ KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+/* 50 */ KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+/* 58 */ KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+/* 60 */ KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+/* 68 */ KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+/* 70 */ KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+/* 78 */ KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+/* 80 */ KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+/* 88 */ KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+/* 90 */ KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+/* 98 */ KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+/* a0 */ KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+/* a8 */ KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+/* b0 */ KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+/* b8 */ KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+/* c0 */ KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+/* c8 */ KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+/* d0 */ KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+/* d8 */ KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+/* e0 */ KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+/* e8 */ KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+/* f0 */ KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+/* f8 */ KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED
+
+#undef CONFLICT
+#undef C_07
+#undef C_11
+#undef C_14
+#undef C_58
+#undef C_61
+
diff --git a/drivers/input/keyboard/imx_keypad.c b/drivers/input/keyboard/imx_keypad.c
new file mode 100644
index 0000000..ccebd2d
--- /dev/null
+++ b/drivers/input/keyboard/imx_keypad.c
@@ -0,0 +1,639 @@
+/*
+ * Driver for the IMX keypad port.
+ * Copyright (C) 2009 Alberto Panizzo <maramaopercheseimorto@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * <<Power management needs to be implemented>>.
+ */
+
+#include <linux/clk.h>
+#include <linux/delay.h>
+#include <linux/device.h>
+#include <linux/err.h>
+#include <linux/init.h>
+#include <linux/input/matrix_keypad.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/jiffies.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <linux/timer.h>
+
+/*
+ * Keypad Controller registers (halfword)
+ */
+#define KPCR 0x00 /* Keypad Control Register */
+
+#define KPSR 0x02 /* Keypad Status Register */
+#define KBD_STAT_KPKD (0x1 << 0) /* Key Press Interrupt Status bit (w1c) */
+#define KBD_STAT_KPKR (0x1 << 1) /* Key Release Interrupt Status bit (w1c) */
+#define KBD_STAT_KDSC (0x1 << 2) /* Key Depress Synch Chain Status bit (w1c)*/
+#define KBD_STAT_KRSS (0x1 << 3) /* Key Release Synch Status bit (w1c)*/
+#define KBD_STAT_KDIE (0x1 << 8) /* Key Depress Interrupt Enable Status bit */
+#define KBD_STAT_KRIE (0x1 << 9) /* Key Release Interrupt Enable */
+#define KBD_STAT_KPPEN (0x1 << 10) /* Keypad Clock Enable */
+
+#define KDDR 0x04 /* Keypad Data Direction Register */
+#define KPDR 0x06 /* Keypad Data Register */
+
+#define MAX_MATRIX_KEY_ROWS 8
+#define MAX_MATRIX_KEY_COLS 8
+#define MATRIX_ROW_SHIFT 3
+
+#define MAX_MATRIX_KEY_NUM (MAX_MATRIX_KEY_ROWS * MAX_MATRIX_KEY_COLS)
+
+struct imx_keypad {
+
+ struct clk *clk;
+ struct input_dev *input_dev;
+ void __iomem *mmio_base;
+
+ int irq;
+ struct timer_list check_matrix_timer;
+
+ /*
+ * The matrix is stable only if no changes are detected after
+ * IMX_KEYPAD_SCANS_FOR_STABILITY scans
+ */
+#define IMX_KEYPAD_SCANS_FOR_STABILITY 3
+ int stable_count;
+
+ bool enabled;
+
+ /* Masks for enabled rows/cols */
+ unsigned short rows_en_mask;
+ unsigned short cols_en_mask;
+
+ unsigned short keycodes[MAX_MATRIX_KEY_NUM];
+
+ /*
+ * Matrix states:
+ * -stable: achieved after a complete debounce process.
+ * -unstable: used in the debouncing process.
+ */
+ unsigned short matrix_stable_state[MAX_MATRIX_KEY_COLS];
+ unsigned short matrix_unstable_state[MAX_MATRIX_KEY_COLS];
+};
+
+/* Scan the matrix and return the new state in *matrix_volatile_state. */
+static void imx_keypad_scan_matrix(struct imx_keypad *keypad,
+ unsigned short *matrix_volatile_state)
+{
+ int col;
+ unsigned short reg_val;
+
+ for (col = 0; col < MAX_MATRIX_KEY_COLS; col++) {
+ if ((keypad->cols_en_mask & (1 << col)) == 0)
+ continue;
+ /*
+ * Discharge keypad capacitance:
+ * 2. write 1s on column data.
+ * 3. configure columns as totem-pole to discharge capacitance.
+ * 4. configure columns as open-drain.
+ */
+ reg_val = readw(keypad->mmio_base + KPDR);
+ reg_val |= 0xff00;
+ writew(reg_val, keypad->mmio_base + KPDR);
+
+ reg_val = readw(keypad->mmio_base + KPCR);
+ reg_val &= ~((keypad->cols_en_mask & 0xff) << 8);
+ writew(reg_val, keypad->mmio_base + KPCR);
+
+ udelay(2);
+
+ reg_val = readw(keypad->mmio_base + KPCR);
+ reg_val |= (keypad->cols_en_mask & 0xff) << 8;
+ writew(reg_val, keypad->mmio_base + KPCR);
+
+ /*
+ * 5. Write a single column to 0, others to 1.
+ * 6. Sample row inputs and save data.
+ * 7. Repeat steps 2 - 6 for remaining columns.
+ */
+ reg_val = readw(keypad->mmio_base + KPDR);
+ reg_val &= ~(1 << (8 + col));
+ writew(reg_val, keypad->mmio_base + KPDR);
+
+ /*
+ * Delay added to avoid propagating the 0 from column to row
+ * when scanning.
+ */
+ udelay(5);
+
+ /*
+ * 1s in matrix_volatile_state[col] means key pressures
+ * throw data from non enabled rows.
+ */
+ reg_val = readw(keypad->mmio_base + KPDR);
+ matrix_volatile_state[col] = (~reg_val) & keypad->rows_en_mask;
+ }
+
+ /*
+ * Return in standby mode:
+ * 9. write 0s to columns
+ */
+ reg_val = readw(keypad->mmio_base + KPDR);
+ reg_val &= 0x00ff;
+ writew(reg_val, keypad->mmio_base + KPDR);
+}
+
+/*
+ * Compare the new matrix state (volatile) with the stable one stored in
+ * keypad->matrix_stable_state and fire events if changes are detected.
+ */
+static void imx_keypad_fire_events(struct imx_keypad *keypad,
+ unsigned short *matrix_volatile_state)
+{
+ struct input_dev *input_dev = keypad->input_dev;
+ int row, col;
+
+ for (col = 0; col < MAX_MATRIX_KEY_COLS; col++) {
+ unsigned short bits_changed;
+ int code;
+
+ if ((keypad->cols_en_mask & (1 << col)) == 0)
+ continue; /* Column is not enabled */
+
+ bits_changed = keypad->matrix_stable_state[col] ^
+ matrix_volatile_state[col];
+
+ if (bits_changed == 0)
+ continue; /* Column does not contain changes */
+
+ for (row = 0; row < MAX_MATRIX_KEY_ROWS; row++) {
+ if ((keypad->rows_en_mask & (1 << row)) == 0)
+ continue; /* Row is not enabled */
+ if ((bits_changed & (1 << row)) == 0)
+ continue; /* Row does not contain changes */
+
+ code = MATRIX_SCAN_CODE(row, col, MATRIX_ROW_SHIFT);
+ input_event(input_dev, EV_MSC, MSC_SCAN, code);
+ input_report_key(input_dev, keypad->keycodes[code],
+ matrix_volatile_state[col] & (1 << row));
+ dev_dbg(&input_dev->dev, "Event code: %d, val: %d",
+ keypad->keycodes[code],
+ matrix_volatile_state[col] & (1 << row));
+ }
+ }
+ input_sync(input_dev);
+}
+
+/*
+ * imx_keypad_check_for_events is the timer handler.
+ */
+static void imx_keypad_check_for_events(unsigned long data)
+{
+ struct imx_keypad *keypad = (struct imx_keypad *) data;
+ unsigned short matrix_volatile_state[MAX_MATRIX_KEY_COLS];
+ unsigned short reg_val;
+ bool state_changed, is_zero_matrix;
+ int i;
+
+ memset(matrix_volatile_state, 0, sizeof(matrix_volatile_state));
+
+ imx_keypad_scan_matrix(keypad, matrix_volatile_state);
+
+ state_changed = false;
+ for (i = 0; i < MAX_MATRIX_KEY_COLS; i++) {
+ if ((keypad->cols_en_mask & (1 << i)) == 0)
+ continue;
+
+ if (keypad->matrix_unstable_state[i] ^ matrix_volatile_state[i]) {
+ state_changed = true;
+ break;
+ }
+ }
+
+ /*
+ * If the matrix state is changed from the previous scan
+ * (Re)Begin the debouncing process, saving the new state in
+ * keypad->matrix_unstable_state.
+ * else
+ * Increase the count of number of scans with a stable state.
+ */
+ if (state_changed) {
+ memcpy(keypad->matrix_unstable_state, matrix_volatile_state,
+ sizeof(matrix_volatile_state));
+ keypad->stable_count = 0;
+ } else
+ keypad->stable_count++;
+
+ /*
+ * If the matrix is not as stable as we want reschedule scan
+ * in the near future.
+ */
+ if (keypad->stable_count < IMX_KEYPAD_SCANS_FOR_STABILITY) {
+ mod_timer(&keypad->check_matrix_timer,
+ jiffies + msecs_to_jiffies(10));
+ return;
+ }
+
+ /*
+ * If the matrix state is stable, fire the events and save the new
+ * stable state. Note, if the matrix is kept stable for longer
+ * (keypad->stable_count > IMX_KEYPAD_SCANS_FOR_STABILITY) all
+ * events have already been generated.
+ */
+ if (keypad->stable_count == IMX_KEYPAD_SCANS_FOR_STABILITY) {
+ imx_keypad_fire_events(keypad, matrix_volatile_state);
+
+ memcpy(keypad->matrix_stable_state, matrix_volatile_state,
+ sizeof(matrix_volatile_state));
+ }
+
+ is_zero_matrix = true;
+ for (i = 0; i < MAX_MATRIX_KEY_COLS; i++) {
+ if (matrix_volatile_state[i] != 0) {
+ is_zero_matrix = false;
+ break;
+ }
+ }
+
+
+ if (is_zero_matrix) {
+ /*
+ * All keys have been released. Enable only the KDI
+ * interrupt for future key presses (clear the KDI
+ * status bit and its sync chain before that).
+ */
+ reg_val = readw(keypad->mmio_base + KPSR);
+ reg_val |= KBD_STAT_KPKD | KBD_STAT_KDSC;
+ writew(reg_val, keypad->mmio_base + KPSR);
+
+ reg_val = readw(keypad->mmio_base + KPSR);
+ reg_val |= KBD_STAT_KDIE;
+ reg_val &= ~KBD_STAT_KRIE;
+ writew(reg_val, keypad->mmio_base + KPSR);
+ } else {
+ /*
+ * Some keys are still pressed. Schedule a rescan in
+ * attempt to detect multiple key presses and enable
+ * the KRI interrupt to react quickly to key release
+ * event.
+ */
+ mod_timer(&keypad->check_matrix_timer,
+ jiffies + msecs_to_jiffies(60));
+
+ reg_val = readw(keypad->mmio_base + KPSR);
+ reg_val |= KBD_STAT_KPKR | KBD_STAT_KRSS;
+ writew(reg_val, keypad->mmio_base + KPSR);
+
+ reg_val = readw(keypad->mmio_base + KPSR);
+ reg_val |= KBD_STAT_KRIE;
+ reg_val &= ~KBD_STAT_KDIE;
+ writew(reg_val, keypad->mmio_base + KPSR);
+ }
+}
+
+static irqreturn_t imx_keypad_irq_handler(int irq, void *dev_id)
+{
+ struct imx_keypad *keypad = dev_id;
+ unsigned short reg_val;
+
+ reg_val = readw(keypad->mmio_base + KPSR);
+
+ /* Disable both interrupt types */
+ reg_val &= ~(KBD_STAT_KRIE | KBD_STAT_KDIE);
+ /* Clear interrupts status bits */
+ reg_val |= KBD_STAT_KPKR | KBD_STAT_KPKD;
+ writew(reg_val, keypad->mmio_base + KPSR);
+
+ if (keypad->enabled) {
+ /* The matrix is supposed to be changed */
+ keypad->stable_count = 0;
+
+ /* Schedule the scanning procedure near in the future */
+ mod_timer(&keypad->check_matrix_timer,
+ jiffies + msecs_to_jiffies(2));
+ }
+
+ return IRQ_HANDLED;
+}
+
+static void imx_keypad_config(struct imx_keypad *keypad)
+{
+ unsigned short reg_val;
+
+ /*
+ * Include enabled rows in interrupt generation (KPCR[7:0])
+ * Configure keypad columns as open-drain (KPCR[15:8])
+ */
+ reg_val = readw(keypad->mmio_base + KPCR);
+ reg_val |= keypad->rows_en_mask & 0xff; /* rows */
+ reg_val |= (keypad->cols_en_mask & 0xff) << 8; /* cols */
+ writew(reg_val, keypad->mmio_base + KPCR);
+
+ /* Write 0's to KPDR[15:8] (Colums) */
+ reg_val = readw(keypad->mmio_base + KPDR);
+ reg_val &= 0x00ff;
+ writew(reg_val, keypad->mmio_base + KPDR);
+
+ /* Configure columns as output, rows as input (KDDR[15:0]) */
+ writew(0xff00, keypad->mmio_base + KDDR);
+
+ /*
+ * Clear Key Depress and Key Release status bit.
+ * Clear both synchronizer chain.
+ */
+ reg_val = readw(keypad->mmio_base + KPSR);
+ reg_val |= KBD_STAT_KPKR | KBD_STAT_KPKD |
+ KBD_STAT_KDSC | KBD_STAT_KRSS;
+ writew(reg_val, keypad->mmio_base + KPSR);
+
+ /* Enable KDI and disable KRI (avoid false release events). */
+ reg_val |= KBD_STAT_KDIE;
+ reg_val &= ~KBD_STAT_KRIE;
+ writew(reg_val, keypad->mmio_base + KPSR);
+}
+
+static void imx_keypad_inhibit(struct imx_keypad *keypad)
+{
+ unsigned short reg_val;
+
+ /* Inhibit KDI and KRI interrupts. */
+ reg_val = readw(keypad->mmio_base + KPSR);
+ reg_val &= ~(KBD_STAT_KRIE | KBD_STAT_KDIE);
+ writew(reg_val, keypad->mmio_base + KPSR);
+
+ /* Colums as open drain and disable all rows */
+ writew(0xff00, keypad->mmio_base + KPCR);
+}
+
+static void imx_keypad_close(struct input_dev *dev)
+{
+ struct imx_keypad *keypad = input_get_drvdata(dev);
+
+ dev_dbg(&dev->dev, ">%s\n", __func__);
+
+ /* Mark keypad as being inactive */
+ keypad->enabled = false;
+ synchronize_irq(keypad->irq);
+ del_timer_sync(&keypad->check_matrix_timer);
+
+ imx_keypad_inhibit(keypad);
+
+ /* Disable clock unit */
+ clk_disable(keypad->clk);
+}
+
+static int imx_keypad_open(struct input_dev *dev)
+{
+ struct imx_keypad *keypad = input_get_drvdata(dev);
+
+ dev_dbg(&dev->dev, ">%s\n", __func__);
+
+ /* We became active from now */
+ keypad->enabled = true;
+
+ /* Enable the kpp clock */
+ clk_enable(keypad->clk);
+ imx_keypad_config(keypad);
+
+ /* Sanity control, not all the rows must be actived now. */
+ if ((readw(keypad->mmio_base + KPDR) & keypad->rows_en_mask) == 0) {
+ dev_err(&dev->dev,
+ "too many keys pressed, control pins initialisation\n");
+ goto open_err;
+ }
+
+ return 0;
+
+open_err:
+ imx_keypad_close(dev);
+ return -EIO;
+}
+
+static int __devinit imx_keypad_probe(struct platform_device *pdev)
+{
+ const struct matrix_keymap_data *keymap_data = pdev->dev.platform_data;
+ struct imx_keypad *keypad;
+ struct input_dev *input_dev;
+ struct resource *res;
+ int irq, error, i;
+
+ if (keymap_data == NULL) {
+ dev_err(&pdev->dev, "no keymap defined\n");
+ return -EINVAL;
+ }
+
+ irq = platform_get_irq(pdev, 0);
+ if (irq < 0) {
+ dev_err(&pdev->dev, "no irq defined in platform data\n");
+ return -EINVAL;
+ }
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (res == NULL) {
+ dev_err(&pdev->dev, "no I/O memory defined in platform data\n");
+ return -EINVAL;
+ }
+
+ res = request_mem_region(res->start, resource_size(res), pdev->name);
+ if (res == NULL) {
+ dev_err(&pdev->dev, "failed to request I/O memory\n");
+ return -EBUSY;
+ }
+
+ input_dev = input_allocate_device();
+ if (!input_dev) {
+ dev_err(&pdev->dev, "failed to allocate the input device\n");
+ error = -ENOMEM;
+ goto failed_rel_mem;
+ }
+
+ keypad = kzalloc(sizeof(struct imx_keypad), GFP_KERNEL);
+ if (!keypad) {
+ dev_err(&pdev->dev, "not enough memory for driver data\n");
+ error = -ENOMEM;
+ goto failed_free_input;
+ }
+
+ keypad->input_dev = input_dev;
+ keypad->irq = irq;
+ keypad->stable_count = 0;
+
+ setup_timer(&keypad->check_matrix_timer,
+ imx_keypad_check_for_events, (unsigned long) keypad);
+
+ keypad->mmio_base = ioremap(res->start, resource_size(res));
+ if (keypad->mmio_base == NULL) {
+ dev_err(&pdev->dev, "failed to remap I/O memory\n");
+ error = -ENOMEM;
+ goto failed_free_priv;
+ }
+
+ keypad->clk = clk_get(&pdev->dev, "kpp");
+ if (IS_ERR(keypad->clk)) {
+ dev_err(&pdev->dev, "failed to get keypad clock\n");
+ error = PTR_ERR(keypad->clk);
+ goto failed_unmap;
+ }
+
+ /* Search for rows and cols enabled */
+ for (i = 0; i < keymap_data->keymap_size; i++) {
+ keypad->rows_en_mask |= 1 << KEY_ROW(keymap_data->keymap[i]);
+ keypad->cols_en_mask |= 1 << KEY_COL(keymap_data->keymap[i]);
+ }
+
+ if (keypad->rows_en_mask > ((1 << MAX_MATRIX_KEY_ROWS) - 1) ||
+ keypad->cols_en_mask > ((1 << MAX_MATRIX_KEY_COLS) - 1)) {
+ dev_err(&pdev->dev,
+ "invalid key data (too many rows or colums)\n");
+ error = -EINVAL;
+ goto failed_clock_put;
+ }
+ dev_dbg(&pdev->dev, "enabled rows mask: %x\n", keypad->rows_en_mask);
+ dev_dbg(&pdev->dev, "enabled cols mask: %x\n", keypad->cols_en_mask);
+
+ /* Init the Input device */
+ input_dev->name = pdev->name;
+ input_dev->id.bustype = BUS_HOST;
+ input_dev->dev.parent = &pdev->dev;
+ input_dev->open = imx_keypad_open;
+ input_dev->close = imx_keypad_close;
+ input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP);
+ input_dev->keycode = keypad->keycodes;
+ input_dev->keycodesize = sizeof(keypad->keycodes[0]);
+ input_dev->keycodemax = ARRAY_SIZE(keypad->keycodes);
+
+ matrix_keypad_build_keymap(keymap_data, MATRIX_ROW_SHIFT,
+ keypad->keycodes, input_dev->keybit);
+
+ input_set_capability(input_dev, EV_MSC, MSC_SCAN);
+ input_set_drvdata(input_dev, keypad);
+
+ /* Ensure that the keypad will stay dormant until opened */
+ imx_keypad_inhibit(keypad);
+
+ error = request_irq(irq, imx_keypad_irq_handler, 0,
+ pdev->name, keypad);
+ if (error) {
+ dev_err(&pdev->dev, "failed to request IRQ\n");
+ goto failed_clock_put;
+ }
+
+ /* Register the input device */
+ error = input_register_device(input_dev);
+ if (error) {
+ dev_err(&pdev->dev, "failed to register input device\n");
+ goto failed_free_irq;
+ }
+
+ platform_set_drvdata(pdev, keypad);
+ device_init_wakeup(&pdev->dev, 1);
+
+ return 0;
+
+failed_free_irq:
+ free_irq(irq, pdev);
+failed_clock_put:
+ clk_put(keypad->clk);
+failed_unmap:
+ iounmap(keypad->mmio_base);
+failed_free_priv:
+ kfree(keypad);
+failed_free_input:
+ input_free_device(input_dev);
+failed_rel_mem:
+ release_mem_region(res->start, resource_size(res));
+ return error;
+}
+
+static int __devexit imx_keypad_remove(struct platform_device *pdev)
+{
+ struct imx_keypad *keypad = platform_get_drvdata(pdev);
+ struct resource *res;
+
+ dev_dbg(&pdev->dev, ">%s\n", __func__);
+
+ platform_set_drvdata(pdev, NULL);
+
+ input_unregister_device(keypad->input_dev);
+
+ free_irq(keypad->irq, keypad);
+ clk_put(keypad->clk);
+
+ iounmap(keypad->mmio_base);
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ release_mem_region(res->start, resource_size(res));
+
+ kfree(keypad);
+
+ return 0;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int imx_kbd_suspend(struct device *dev)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ struct imx_keypad *kbd = platform_get_drvdata(pdev);
+ struct input_dev *input_dev = kbd->input_dev;
+
+ /* imx kbd can wake up system even clock is disabled */
+ mutex_lock(&input_dev->mutex);
+
+ if (input_dev->users)
+ clk_disable(kbd->clk);
+
+ mutex_unlock(&input_dev->mutex);
+
+ if (device_may_wakeup(&pdev->dev))
+ enable_irq_wake(kbd->irq);
+
+ return 0;
+}
+
+static int imx_kbd_resume(struct device *dev)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ struct imx_keypad *kbd = platform_get_drvdata(pdev);
+ struct input_dev *input_dev = kbd->input_dev;
+
+ if (device_may_wakeup(&pdev->dev))
+ disable_irq_wake(kbd->irq);
+
+ mutex_lock(&input_dev->mutex);
+
+ if (input_dev->users)
+ clk_enable(kbd->clk);
+
+ mutex_unlock(&input_dev->mutex);
+
+ return 0;
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(imx_kbd_pm_ops, imx_kbd_suspend, imx_kbd_resume);
+
+static struct platform_driver imx_keypad_driver = {
+ .driver = {
+ .name = "imx-keypad",
+ .owner = THIS_MODULE,
+ .pm = &imx_kbd_pm_ops,
+ },
+ .probe = imx_keypad_probe,
+ .remove = __devexit_p(imx_keypad_remove),
+};
+
+static int __init imx_keypad_init(void)
+{
+ return platform_driver_register(&imx_keypad_driver);
+}
+
+static void __exit imx_keypad_exit(void)
+{
+ platform_driver_unregister(&imx_keypad_driver);
+}
+
+module_init(imx_keypad_init);
+module_exit(imx_keypad_exit);
+
+MODULE_AUTHOR("Alberto Panizzo <maramaopercheseimorto@gmail.com>");
+MODULE_DESCRIPTION("IMX Keypad Port Driver");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:imx-keypad");
diff --git a/drivers/input/keyboard/jornada680_kbd.c b/drivers/input/keyboard/jornada680_kbd.c
new file mode 100644
index 0000000..7197c56
--- /dev/null
+++ b/drivers/input/keyboard/jornada680_kbd.c
@@ -0,0 +1,280 @@
+/*
+ * drivers/input/keyboard/jornada680_kbd.c
+ *
+ * HP Jornada 620/660/680/690 scan keyboard platform driver
+ * Copyright (C) 2007 Kristoffer Ericson <Kristoffer.Ericson@gmail.com>
+ *
+ * Based on hp680_keyb.c
+ * Copyright (C) 2006 Paul Mundt
+ * Copyright (C) 2005 Andriy Skulysh
+ * Split from drivers/input/keyboard/hp600_keyb.c
+ * Copyright (C) 2000 Yaegashi Takeshi (hp6xx kbd scan routine and translation table)
+ * Copyright (C) 2000 Niibe Yutaka (HP620 Keyb translation table)
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/init.h>
+#include <linux/input.h>
+#include <linux/input-polldev.h>
+#include <linux/interrupt.h>
+#include <linux/jiffies.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+
+#include <asm/delay.h>
+#include <asm/io.h>
+
+#define PCCR 0xa4000104
+#define PDCR 0xa4000106
+#define PECR 0xa4000108
+#define PFCR 0xa400010a
+#define PCDR 0xa4000124
+#define PDDR 0xa4000126
+#define PEDR 0xa4000128
+#define PFDR 0xa400012a
+#define PGDR 0xa400012c
+#define PHDR 0xa400012e
+#define PJDR 0xa4000130
+#define PKDR 0xa4000132
+#define PLDR 0xa4000134
+
+static const unsigned short jornada_scancodes[] = {
+/* PTD1 */ KEY_CAPSLOCK, KEY_MACRO, KEY_LEFTCTRL, 0, KEY_ESC, KEY_KP5, 0, 0, /* 1 -> 8 */
+ KEY_F1, KEY_F2, KEY_F3, KEY_F8, KEY_F7, KEY_F6, KEY_F4, KEY_F5, /* 9 -> 16 */
+/* PTD5 */ KEY_SLASH, KEY_APOSTROPHE, KEY_ENTER, 0, KEY_Z, 0, 0, 0, /* 17 -> 24 */
+ KEY_X, KEY_C, KEY_V, KEY_DOT, KEY_COMMA, KEY_M, KEY_B, KEY_N, /* 25 -> 32 */
+/* PTD7 */ KEY_KP2, KEY_KP6, KEY_KP3, 0, 0, 0, 0, 0, /* 33 -> 40 */
+ KEY_F10, KEY_RO, KEY_F9, KEY_KP4, KEY_NUMLOCK, KEY_SCROLLLOCK, KEY_LEFTALT, KEY_HANJA, /* 41 -> 48 */
+/* PTE0 */ KEY_KATAKANA, KEY_KP0, KEY_GRAVE, 0, KEY_FINANCE, 0, 0, 0, /* 49 -> 56 */
+ KEY_KPMINUS, KEY_HIRAGANA, KEY_SPACE, KEY_KPDOT, KEY_VOLUMEUP, 249, 0, 0, /* 57 -> 64 */
+/* PTE1 */ KEY_SEMICOLON, KEY_RIGHTBRACE, KEY_BACKSLASH, 0, KEY_A, 0, 0, 0, /* 65 -> 72 */
+ KEY_S, KEY_D, KEY_F, KEY_L, KEY_K, KEY_J, KEY_G, KEY_H, /* 73 -> 80 */
+/* PTE3 */ KEY_KP8, KEY_LEFTMETA, KEY_RIGHTSHIFT, 0, KEY_TAB, 0, 0, 0, /* 81 -> 88 */
+ 0, KEY_LEFTSHIFT, KEY_KP7, KEY_KP9, KEY_KP1, KEY_F11, KEY_KPPLUS, KEY_KPASTERISK, /* 89 -> 96 */
+/* PTE6 */ KEY_P, KEY_LEFTBRACE, KEY_BACKSPACE, 0, KEY_Q, 0, 0, 0, /* 97 -> 104 */
+ KEY_W, KEY_E, KEY_R, KEY_O, KEY_I, KEY_U, KEY_T, KEY_Y, /* 105 -> 112 */
+/* PTE7 */ KEY_0, KEY_MINUS, KEY_EQUAL, 0, KEY_1, 0, 0, 0, /* 113 -> 120 */
+ KEY_2, KEY_3, KEY_4, KEY_9, KEY_8, KEY_7, KEY_5, KEY_6, /* 121 -> 128 */
+/* **** */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0
+};
+
+#define JORNADA_SCAN_SIZE 18
+
+struct jornadakbd {
+ struct input_polled_dev *poll_dev;
+ unsigned short keymap[ARRAY_SIZE(jornada_scancodes)];
+ unsigned char length;
+ unsigned char old_scan[JORNADA_SCAN_SIZE];
+ unsigned char new_scan[JORNADA_SCAN_SIZE];
+};
+
+static void jornada_parse_kbd(struct jornadakbd *jornadakbd)
+{
+ struct input_dev *input_dev = jornadakbd->poll_dev->input;
+ unsigned short *keymap = jornadakbd->keymap;
+ unsigned int sync_me = 0;
+ unsigned int i, j;
+
+ for (i = 0; i < JORNADA_SCAN_SIZE; i++) {
+ unsigned char new = jornadakbd->new_scan[i];
+ unsigned char old = jornadakbd->old_scan[i];
+ unsigned int xor = new ^ old;
+
+ if (xor == 0)
+ continue;
+
+ for (j = 0; j < 8; j++) {
+ unsigned int bit = 1 << j;
+ if (xor & bit) {
+ unsigned int scancode = (i << 3) + j;
+ input_event(input_dev,
+ EV_MSC, MSC_SCAN, scancode);
+ input_report_key(input_dev,
+ keymap[scancode],
+ !(new & bit));
+ sync_me = 1;
+ }
+ }
+ }
+
+ if (sync_me)
+ input_sync(input_dev);
+}
+
+static void jornada_scan_keyb(unsigned char *s)
+{
+ int i;
+ unsigned short ec_static, dc_static; /* = UINT16_t */
+ unsigned char matrix_switch[] = {
+ 0xfd, 0xff, /* PTD1 PD(1) */
+ 0xdf, 0xff, /* PTD5 PD(5) */
+ 0x7f, 0xff, /* PTD7 PD(7) */
+ 0xff, 0xfe, /* PTE0 PE(0) */
+ 0xff, 0xfd, /* PTE1 PE(1) */
+ 0xff, 0xf7, /* PTE3 PE(3) */
+ 0xff, 0xbf, /* PTE6 PE(6) */
+ 0xff, 0x7f, /* PTE7 PE(7) */
+ }, *t = matrix_switch;
+ /* PD(x) :
+ 1. 0xcc0c & (1~(1 << (2*(x)+1)))))
+ 2. (0xf0cf & 0xfffff) */
+ /* PE(x) :
+ 1. 0xcc0c & 0xffff
+ 2. 0xf0cf & (1~(1 << (2*(x)+1))))) */
+ unsigned short matrix_PDE[] = {
+ 0xcc04, 0xf0cf, /* PD(1) */
+ 0xc40c, 0xf0cf, /* PD(5) */
+ 0x4c0c, 0xf0cf, /* PD(7) */
+ 0xcc0c, 0xf0cd, /* PE(0) */
+ 0xcc0c, 0xf0c7, /* PE(1) */
+ 0xcc0c, 0xf04f, /* PE(3) */
+ 0xcc0c, 0xd0cf, /* PE(6) */
+ 0xcc0c, 0x70cf, /* PE(7) */
+ }, *y = matrix_PDE;
+
+ /* Save these control reg bits */
+ dc_static = (__raw_readw(PDCR) & (~0xcc0c));
+ ec_static = (__raw_readw(PECR) & (~0xf0cf));
+
+ for (i = 0; i < 8; i++) {
+ /* disable output for all but the one we want to scan */
+ __raw_writew((dc_static | *y++), PDCR);
+ __raw_writew((ec_static | *y++), PECR);
+ udelay(5);
+
+ /* Get scanline row */
+ __raw_writeb(*t++, PDDR);
+ __raw_writeb(*t++, PEDR);
+ udelay(50);
+
+ /* Read data */
+ *s++ = __raw_readb(PCDR);
+ *s++ = __raw_readb(PFDR);
+ }
+ /* Scan no lines */
+ __raw_writeb(0xff, PDDR);
+ __raw_writeb(0xff, PEDR);
+
+ /* Enable all scanlines */
+ __raw_writew((dc_static | (0x5555 & 0xcc0c)),PDCR);
+ __raw_writew((ec_static | (0x5555 & 0xf0cf)),PECR);
+
+ /* Ignore extra keys and events */
+ *s++ = __raw_readb(PGDR);
+ *s++ = __raw_readb(PHDR);
+}
+
+static void jornadakbd680_poll(struct input_polled_dev *dev)
+{
+ struct jornadakbd *jornadakbd = dev->private;
+
+ jornada_scan_keyb(jornadakbd->new_scan);
+ jornada_parse_kbd(jornadakbd);
+ memcpy(jornadakbd->old_scan, jornadakbd->new_scan, JORNADA_SCAN_SIZE);
+}
+
+static int __devinit jornada680kbd_probe(struct platform_device *pdev)
+{
+ struct jornadakbd *jornadakbd;
+ struct input_polled_dev *poll_dev;
+ struct input_dev *input_dev;
+ int i, error;
+
+ jornadakbd = kzalloc(sizeof(struct jornadakbd), GFP_KERNEL);
+ if (!jornadakbd)
+ return -ENOMEM;
+
+ poll_dev = input_allocate_polled_device();
+ if (!poll_dev) {
+ error = -ENOMEM;
+ goto failed;
+ }
+
+ platform_set_drvdata(pdev, jornadakbd);
+
+ jornadakbd->poll_dev = poll_dev;
+
+ memcpy(jornadakbd->keymap, jornada_scancodes,
+ sizeof(jornadakbd->keymap));
+
+ poll_dev->private = jornadakbd;
+ poll_dev->poll = jornadakbd680_poll;
+ poll_dev->poll_interval = 50; /* msec */
+
+ input_dev = poll_dev->input;
+ input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_REP);
+ input_dev->name = "HP Jornada 680 keyboard";
+ input_dev->phys = "jornadakbd/input0";
+ input_dev->keycode = jornadakbd->keymap;
+ input_dev->keycodesize = sizeof(unsigned short);
+ input_dev->keycodemax = ARRAY_SIZE(jornada_scancodes);
+ input_dev->dev.parent = &pdev->dev;
+ input_dev->id.bustype = BUS_HOST;
+
+ for (i = 0; i < 128; i++)
+ if (jornadakbd->keymap[i])
+ __set_bit(jornadakbd->keymap[i], input_dev->keybit);
+ __clear_bit(KEY_RESERVED, input_dev->keybit);
+
+ input_set_capability(input_dev, EV_MSC, MSC_SCAN);
+
+ error = input_register_polled_device(jornadakbd->poll_dev);
+ if (error)
+ goto failed;
+
+ return 0;
+
+ failed:
+ printk(KERN_ERR "Jornadakbd: failed to register driver, error: %d\n",
+ error);
+ platform_set_drvdata(pdev, NULL);
+ input_free_polled_device(poll_dev);
+ kfree(jornadakbd);
+ return error;
+
+}
+
+static int __devexit jornada680kbd_remove(struct platform_device *pdev)
+{
+ struct jornadakbd *jornadakbd = platform_get_drvdata(pdev);
+
+ platform_set_drvdata(pdev, NULL);
+ input_unregister_polled_device(jornadakbd->poll_dev);
+ input_free_polled_device(jornadakbd->poll_dev);
+ kfree(jornadakbd);
+
+ return 0;
+}
+
+static struct platform_driver jornada680kbd_driver = {
+ .driver = {
+ .name = "jornada680_kbd",
+ .owner = THIS_MODULE,
+ },
+ .probe = jornada680kbd_probe,
+ .remove = __devexit_p(jornada680kbd_remove),
+};
+
+static int __init jornada680kbd_init(void)
+{
+ return platform_driver_register(&jornada680kbd_driver);
+}
+
+static void __exit jornada680kbd_exit(void)
+{
+ platform_driver_unregister(&jornada680kbd_driver);
+}
+
+module_init(jornada680kbd_init);
+module_exit(jornada680kbd_exit);
+
+MODULE_AUTHOR("Kristoffer Ericson <kristoffer.ericson@gmail.com>");
+MODULE_DESCRIPTION("HP Jornada 620/660/680/690 Keyboard Driver");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:jornada680_kbd");
diff --git a/drivers/input/keyboard/jornada720_kbd.c b/drivers/input/keyboard/jornada720_kbd.c
new file mode 100644
index 0000000..0aa6740
--- /dev/null
+++ b/drivers/input/keyboard/jornada720_kbd.c
@@ -0,0 +1,189 @@
+/*
+ * drivers/input/keyboard/jornada720_kbd.c
+ *
+ * HP Jornada 720 keyboard platform driver
+ *
+ * Copyright (C) 2006/2007 Kristoffer Ericson <Kristoffer.Ericson@Gmail.com>
+ *
+ * Copyright (C) 2006 jornada 720 kbd driver by
+ Filip Zyzniewsk <Filip.Zyzniewski@tefnet.plX
+ * based on (C) 2004 jornada 720 kbd driver by
+ Alex Lange <chicken@handhelds.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+#include <linux/device.h>
+#include <linux/errno.h>
+#include <linux/interrupt.h>
+#include <linux/init.h>
+#include <linux/input.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+
+#include <mach/jornada720.h>
+#include <mach/hardware.h>
+
+MODULE_AUTHOR("Kristoffer Ericson <Kristoffer.Ericson@gmail.com>");
+MODULE_DESCRIPTION("HP Jornada 710/720/728 keyboard driver");
+MODULE_LICENSE("GPL v2");
+
+static unsigned short jornada_std_keymap[128] = { /* ROW */
+ 0, KEY_ESC, KEY_F1, KEY_F2, KEY_F3, KEY_F4, KEY_F5, KEY_F6, KEY_F7, /* #1 */
+ KEY_F8, KEY_F9, KEY_F10, KEY_F11, KEY_VOLUMEUP, KEY_VOLUMEDOWN, KEY_MUTE, /* -> */
+ 0, KEY_1, KEY_2, KEY_3, KEY_4, KEY_5, KEY_6, KEY_7, KEY_8, KEY_9, /* #2 */
+ KEY_0, KEY_MINUS, KEY_EQUAL,0, 0, 0, /* -> */
+ 0, KEY_Q, KEY_W, KEY_E, KEY_R, KEY_T, KEY_Y, KEY_U, KEY_I, KEY_O, /* #3 */
+ KEY_P, KEY_BACKSLASH, KEY_BACKSPACE, 0, 0, 0, /* -> */
+ 0, KEY_A, KEY_S, KEY_D, KEY_F, KEY_G, KEY_H, KEY_J, KEY_K, KEY_L, /* #4 */
+ KEY_SEMICOLON, KEY_LEFTBRACE, KEY_RIGHTBRACE, 0, 0, 0, /* -> */
+ 0, KEY_Z, KEY_X, KEY_C, KEY_V, KEY_B, KEY_N, KEY_M, KEY_COMMA, /* #5 */
+ KEY_DOT, KEY_KPMINUS, KEY_APOSTROPHE, KEY_ENTER, 0, 0,0, /* -> */
+ 0, KEY_TAB, 0, KEY_LEFTSHIFT, 0, KEY_APOSTROPHE, 0, 0, 0, 0, /* #6 */
+ KEY_UP, 0, KEY_RIGHTSHIFT, 0, 0, 0,0, 0, 0, 0, 0, KEY_LEFTALT, KEY_GRAVE, /* -> */
+ 0, 0, KEY_LEFT, KEY_DOWN, KEY_RIGHT, 0, 0, 0, 0,0, KEY_KPASTERISK, /* -> */
+ KEY_LEFTCTRL, 0, KEY_SPACE, 0, 0, 0, KEY_SLASH, KEY_DELETE, 0, 0, /* -> */
+ 0, 0, 0, KEY_POWER, /* -> */
+};
+
+struct jornadakbd {
+ unsigned short keymap[ARRAY_SIZE(jornada_std_keymap)];
+ struct input_dev *input;
+};
+
+static irqreturn_t jornada720_kbd_interrupt(int irq, void *dev_id)
+{
+ struct platform_device *pdev = dev_id;
+ struct jornadakbd *jornadakbd = platform_get_drvdata(pdev);
+ struct input_dev *input = jornadakbd->input;
+ u8 count, kbd_data, scan_code;
+
+ /* startup ssp with spinlock */
+ jornada_ssp_start();
+
+ if (jornada_ssp_inout(GETSCANKEYCODE) != TXDUMMY) {
+ printk(KERN_DEBUG
+ "jornada720_kbd: "
+ "GetKeycode command failed with ETIMEDOUT, "
+ "flushed bus\n");
+ } else {
+ /* How many keycodes are waiting for us? */
+ count = jornada_ssp_byte(TXDUMMY);
+
+ /* Lets drag them out one at a time */
+ while (count--) {
+ /* Exchange TxDummy for location (keymap[kbddata]) */
+ kbd_data = jornada_ssp_byte(TXDUMMY);
+ scan_code = kbd_data & 0x7f;
+
+ input_event(input, EV_MSC, MSC_SCAN, scan_code);
+ input_report_key(input, jornadakbd->keymap[scan_code],
+ !(kbd_data & 0x80));
+ input_sync(input);
+ }
+ }
+
+ /* release spinlock and turn off ssp */
+ jornada_ssp_end();
+
+ return IRQ_HANDLED;
+};
+
+static int __devinit jornada720_kbd_probe(struct platform_device *pdev)
+{
+ struct jornadakbd *jornadakbd;
+ struct input_dev *input_dev;
+ int i, err;
+
+ jornadakbd = kzalloc(sizeof(struct jornadakbd), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!jornadakbd || !input_dev) {
+ err = -ENOMEM;
+ goto fail1;
+ }
+
+ platform_set_drvdata(pdev, jornadakbd);
+
+ memcpy(jornadakbd->keymap, jornada_std_keymap,
+ sizeof(jornada_std_keymap));
+ jornadakbd->input = input_dev;
+
+ input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_REP);
+ input_dev->name = "HP Jornada 720 keyboard";
+ input_dev->phys = "jornadakbd/input0";
+ input_dev->keycode = jornadakbd->keymap;
+ input_dev->keycodesize = sizeof(unsigned short);
+ input_dev->keycodemax = ARRAY_SIZE(jornada_std_keymap);
+ input_dev->id.bustype = BUS_HOST;
+ input_dev->dev.parent = &pdev->dev;
+
+ for (i = 0; i < ARRAY_SIZE(jornadakbd->keymap); i++)
+ __set_bit(jornadakbd->keymap[i], input_dev->keybit);
+ __clear_bit(KEY_RESERVED, input_dev->keybit);
+
+ input_set_capability(input_dev, EV_MSC, MSC_SCAN);
+
+ err = request_irq(IRQ_GPIO0,
+ jornada720_kbd_interrupt,
+ IRQF_TRIGGER_FALLING,
+ "jornadakbd", pdev);
+ if (err) {
+ printk(KERN_INFO "jornadakbd720_kbd: Unable to grab IRQ\n");
+ goto fail1;
+ }
+
+ err = input_register_device(jornadakbd->input);
+ if (err)
+ goto fail2;
+
+ return 0;
+
+ fail2: /* IRQ, DEVICE, MEMORY */
+ free_irq(IRQ_GPIO0, pdev);
+ fail1: /* DEVICE, MEMORY */
+ platform_set_drvdata(pdev, NULL);
+ input_free_device(input_dev);
+ kfree(jornadakbd);
+ return err;
+};
+
+static int __devexit jornada720_kbd_remove(struct platform_device *pdev)
+{
+ struct jornadakbd *jornadakbd = platform_get_drvdata(pdev);
+
+ free_irq(IRQ_GPIO0, pdev);
+ platform_set_drvdata(pdev, NULL);
+ input_unregister_device(jornadakbd->input);
+ kfree(jornadakbd);
+
+ return 0;
+}
+
+/* work with hotplug and coldplug */
+MODULE_ALIAS("platform:jornada720_kbd");
+
+static struct platform_driver jornada720_kbd_driver = {
+ .driver = {
+ .name = "jornada720_kbd",
+ .owner = THIS_MODULE,
+ },
+ .probe = jornada720_kbd_probe,
+ .remove = __devexit_p(jornada720_kbd_remove),
+};
+
+static int __init jornada720_kbd_init(void)
+{
+ return platform_driver_register(&jornada720_kbd_driver);
+}
+
+static void __exit jornada720_kbd_exit(void)
+{
+ platform_driver_unregister(&jornada720_kbd_driver);
+}
+
+module_init(jornada720_kbd_init);
+module_exit(jornada720_kbd_exit);
diff --git a/drivers/input/keyboard/lkkbd.c b/drivers/input/keyboard/lkkbd.c
new file mode 100644
index 0000000..fa9bb6d
--- /dev/null
+++ b/drivers/input/keyboard/lkkbd.c
@@ -0,0 +1,749 @@
+/*
+ * Copyright (C) 2004 by Jan-Benedict Glaw <jbglaw@lug-owl.de>
+ */
+
+/*
+ * LK keyboard driver for Linux, based on sunkbd.c (C) by Vojtech Pavlik
+ */
+
+/*
+ * DEC LK201 and LK401 keyboard driver for Linux (primary for DECstations
+ * and VAXstations, but can also be used on any standard RS232 with an
+ * adaptor).
+ *
+ * DISCLAIMER: This works for _me_. If you break anything by using the
+ * information given below, I will _not_ be liable!
+ *
+ * RJ10 pinout: To DE9: Or DB25:
+ * 1 - RxD <----> Pin 3 (TxD) <-> Pin 2 (TxD)
+ * 2 - GND <----> Pin 5 (GND) <-> Pin 7 (GND)
+ * 4 - TxD <----> Pin 2 (RxD) <-> Pin 3 (RxD)
+ * 3 - +12V (from HDD drive connector), DON'T connect to DE9 or DB25!!!
+ *
+ * Pin numbers for DE9 and DB25 are noted on the plug (quite small:). For
+ * RJ10, it's like this:
+ *
+ * __=__ Hold the plug in front of you, cable downwards,
+ * /___/| nose is hidden behind the plug. Now, pin 1 is at
+ * |1234|| the left side, pin 4 at the right and 2 and 3 are
+ * |IIII|| in between, of course:)
+ * | ||
+ * |____|/
+ * || So the adaptor consists of three connected cables
+ * || for data transmission (RxD and TxD) and signal ground.
+ * Additionally, you have to get +12V from somewhere.
+ * Most easily, you'll get that from a floppy or HDD power connector.
+ * It's the yellow cable there (black is ground and red is +5V).
+ *
+ * The keyboard and all the commands it understands are documented in
+ * "VCB02 Video Subsystem - Technical Manual", EK-104AA-TM-001. This
+ * document is LK201 specific, but LK401 is mostly compatible. It comes
+ * up in LK201 mode and doesn't report any of the additional keys it
+ * has. These need to be switched on with the LK_CMD_ENABLE_LK401
+ * command. You'll find this document (scanned .pdf file) on MANX,
+ * a search engine specific to DEC documentation. Try
+ * http://www.vt100.net/manx/details?pn=EK-104AA-TM-001;id=21;cp=1
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <linux/delay.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/interrupt.h>
+#include <linux/init.h>
+#include <linux/input.h>
+#include <linux/serio.h>
+#include <linux/workqueue.h>
+
+#define DRIVER_DESC "LK keyboard driver"
+
+MODULE_AUTHOR("Jan-Benedict Glaw <jbglaw@lug-owl.de>");
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+/*
+ * Known parameters:
+ * bell_volume
+ * keyclick_volume
+ * ctrlclick_volume
+ *
+ * Please notice that there's not yet an API to set these at runtime.
+ */
+static int bell_volume = 100; /* % */
+module_param(bell_volume, int, 0);
+MODULE_PARM_DESC(bell_volume, "Bell volume (in %). default is 100%");
+
+static int keyclick_volume = 100; /* % */
+module_param(keyclick_volume, int, 0);
+MODULE_PARM_DESC(keyclick_volume, "Keyclick volume (in %), default is 100%");
+
+static int ctrlclick_volume = 100; /* % */
+module_param(ctrlclick_volume, int, 0);
+MODULE_PARM_DESC(ctrlclick_volume, "Ctrlclick volume (in %), default is 100%");
+
+static int lk201_compose_is_alt;
+module_param(lk201_compose_is_alt, int, 0);
+MODULE_PARM_DESC(lk201_compose_is_alt,
+ "If set non-zero, LK201' Compose key will act as an Alt key");
+
+
+
+#undef LKKBD_DEBUG
+#ifdef LKKBD_DEBUG
+#define DBG(x...) printk(x)
+#else
+#define DBG(x...) do {} while (0)
+#endif
+
+/* LED control */
+#define LK_LED_WAIT 0x81
+#define LK_LED_COMPOSE 0x82
+#define LK_LED_SHIFTLOCK 0x84
+#define LK_LED_SCROLLLOCK 0x88
+#define LK_CMD_LED_ON 0x13
+#define LK_CMD_LED_OFF 0x11
+
+/* Mode control */
+#define LK_MODE_DOWN 0x80
+#define LK_MODE_AUTODOWN 0x82
+#define LK_MODE_UPDOWN 0x86
+#define LK_CMD_SET_MODE(mode, div) ((mode) | ((div) << 3))
+
+/* Misc commands */
+#define LK_CMD_ENABLE_KEYCLICK 0x1b
+#define LK_CMD_DISABLE_KEYCLICK 0x99
+#define LK_CMD_DISABLE_BELL 0xa1
+#define LK_CMD_SOUND_BELL 0xa7
+#define LK_CMD_ENABLE_BELL 0x23
+#define LK_CMD_DISABLE_CTRCLICK 0xb9
+#define LK_CMD_ENABLE_CTRCLICK 0xbb
+#define LK_CMD_SET_DEFAULTS 0xd3
+#define LK_CMD_POWERCYCLE_RESET 0xfd
+#define LK_CMD_ENABLE_LK401 0xe9
+#define LK_CMD_REQUEST_ID 0xab
+
+/* Misc responses from keyboard */
+#define LK_STUCK_KEY 0x3d
+#define LK_SELFTEST_FAILED 0x3e
+#define LK_ALL_KEYS_UP 0xb3
+#define LK_METRONOME 0xb4
+#define LK_OUTPUT_ERROR 0xb5
+#define LK_INPUT_ERROR 0xb6
+#define LK_KBD_LOCKED 0xb7
+#define LK_KBD_TEST_MODE_ACK 0xb8
+#define LK_PREFIX_KEY_DOWN 0xb9
+#define LK_MODE_CHANGE_ACK 0xba
+#define LK_RESPONSE_RESERVED 0xbb
+
+#define LK_NUM_KEYCODES 256
+#define LK_NUM_IGNORE_BYTES 6
+
+static unsigned short lkkbd_keycode[LK_NUM_KEYCODES] = {
+ [0x56] = KEY_F1,
+ [0x57] = KEY_F2,
+ [0x58] = KEY_F3,
+ [0x59] = KEY_F4,
+ [0x5a] = KEY_F5,
+ [0x64] = KEY_F6,
+ [0x65] = KEY_F7,
+ [0x66] = KEY_F8,
+ [0x67] = KEY_F9,
+ [0x68] = KEY_F10,
+ [0x71] = KEY_F11,
+ [0x72] = KEY_F12,
+ [0x73] = KEY_F13,
+ [0x74] = KEY_F14,
+ [0x7c] = KEY_F15,
+ [0x7d] = KEY_F16,
+ [0x80] = KEY_F17,
+ [0x81] = KEY_F18,
+ [0x82] = KEY_F19,
+ [0x83] = KEY_F20,
+ [0x8a] = KEY_FIND,
+ [0x8b] = KEY_INSERT,
+ [0x8c] = KEY_DELETE,
+ [0x8d] = KEY_SELECT,
+ [0x8e] = KEY_PAGEUP,
+ [0x8f] = KEY_PAGEDOWN,
+ [0x92] = KEY_KP0,
+ [0x94] = KEY_KPDOT,
+ [0x95] = KEY_KPENTER,
+ [0x96] = KEY_KP1,
+ [0x97] = KEY_KP2,
+ [0x98] = KEY_KP3,
+ [0x99] = KEY_KP4,
+ [0x9a] = KEY_KP5,
+ [0x9b] = KEY_KP6,
+ [0x9c] = KEY_KPCOMMA,
+ [0x9d] = KEY_KP7,
+ [0x9e] = KEY_KP8,
+ [0x9f] = KEY_KP9,
+ [0xa0] = KEY_KPMINUS,
+ [0xa1] = KEY_PROG1,
+ [0xa2] = KEY_PROG2,
+ [0xa3] = KEY_PROG3,
+ [0xa4] = KEY_PROG4,
+ [0xa7] = KEY_LEFT,
+ [0xa8] = KEY_RIGHT,
+ [0xa9] = KEY_DOWN,
+ [0xaa] = KEY_UP,
+ [0xab] = KEY_RIGHTSHIFT,
+ [0xac] = KEY_LEFTALT,
+ [0xad] = KEY_COMPOSE, /* Right Compose, that is. */
+ [0xae] = KEY_LEFTSHIFT, /* Same as KEY_RIGHTSHIFT on LK201 */
+ [0xaf] = KEY_LEFTCTRL,
+ [0xb0] = KEY_CAPSLOCK,
+ [0xb1] = KEY_COMPOSE, /* Left Compose, that is. */
+ [0xb2] = KEY_RIGHTALT,
+ [0xbc] = KEY_BACKSPACE,
+ [0xbd] = KEY_ENTER,
+ [0xbe] = KEY_TAB,
+ [0xbf] = KEY_ESC,
+ [0xc0] = KEY_1,
+ [0xc1] = KEY_Q,
+ [0xc2] = KEY_A,
+ [0xc3] = KEY_Z,
+ [0xc5] = KEY_2,
+ [0xc6] = KEY_W,
+ [0xc7] = KEY_S,
+ [0xc8] = KEY_X,
+ [0xc9] = KEY_102ND,
+ [0xcb] = KEY_3,
+ [0xcc] = KEY_E,
+ [0xcd] = KEY_D,
+ [0xce] = KEY_C,
+ [0xd0] = KEY_4,
+ [0xd1] = KEY_R,
+ [0xd2] = KEY_F,
+ [0xd3] = KEY_V,
+ [0xd4] = KEY_SPACE,
+ [0xd6] = KEY_5,
+ [0xd7] = KEY_T,
+ [0xd8] = KEY_G,
+ [0xd9] = KEY_B,
+ [0xdb] = KEY_6,
+ [0xdc] = KEY_Y,
+ [0xdd] = KEY_H,
+ [0xde] = KEY_N,
+ [0xe0] = KEY_7,
+ [0xe1] = KEY_U,
+ [0xe2] = KEY_J,
+ [0xe3] = KEY_M,
+ [0xe5] = KEY_8,
+ [0xe6] = KEY_I,
+ [0xe7] = KEY_K,
+ [0xe8] = KEY_COMMA,
+ [0xea] = KEY_9,
+ [0xeb] = KEY_O,
+ [0xec] = KEY_L,
+ [0xed] = KEY_DOT,
+ [0xef] = KEY_0,
+ [0xf0] = KEY_P,
+ [0xf2] = KEY_SEMICOLON,
+ [0xf3] = KEY_SLASH,
+ [0xf5] = KEY_EQUAL,
+ [0xf6] = KEY_RIGHTBRACE,
+ [0xf7] = KEY_BACKSLASH,
+ [0xf9] = KEY_MINUS,
+ [0xfa] = KEY_LEFTBRACE,
+ [0xfb] = KEY_APOSTROPHE,
+};
+
+#define CHECK_LED(LK, VAR_ON, VAR_OFF, LED, BITS) do { \
+ if (test_bit(LED, (LK)->dev->led)) \
+ VAR_ON |= BITS; \
+ else \
+ VAR_OFF |= BITS; \
+ } while (0)
+
+/*
+ * Per-keyboard data
+ */
+struct lkkbd {
+ unsigned short keycode[LK_NUM_KEYCODES];
+ int ignore_bytes;
+ unsigned char id[LK_NUM_IGNORE_BYTES];
+ struct input_dev *dev;
+ struct serio *serio;
+ struct work_struct tq;
+ char name[64];
+ char phys[32];
+ char type;
+ int bell_volume;
+ int keyclick_volume;
+ int ctrlclick_volume;
+};
+
+#ifdef LKKBD_DEBUG
+/*
+ * Responses from the keyboard and mapping back to their names.
+ */
+static struct {
+ unsigned char value;
+ unsigned char *name;
+} lk_response[] = {
+#define RESPONSE(x) { .value = (x), .name = #x, }
+ RESPONSE(LK_STUCK_KEY),
+ RESPONSE(LK_SELFTEST_FAILED),
+ RESPONSE(LK_ALL_KEYS_UP),
+ RESPONSE(LK_METRONOME),
+ RESPONSE(LK_OUTPUT_ERROR),
+ RESPONSE(LK_INPUT_ERROR),
+ RESPONSE(LK_KBD_LOCKED),
+ RESPONSE(LK_KBD_TEST_MODE_ACK),
+ RESPONSE(LK_PREFIX_KEY_DOWN),
+ RESPONSE(LK_MODE_CHANGE_ACK),
+ RESPONSE(LK_RESPONSE_RESERVED),
+#undef RESPONSE
+};
+
+static unsigned char *response_name(unsigned char value)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(lk_response); i++)
+ if (lk_response[i].value == value)
+ return lk_response[i].name;
+
+ return "<unknown>";
+}
+#endif /* LKKBD_DEBUG */
+
+/*
+ * Calculate volume parameter byte for a given volume.
+ */
+static unsigned char volume_to_hw(int volume_percent)
+{
+ unsigned char ret = 0;
+
+ if (volume_percent < 0)
+ volume_percent = 0;
+ if (volume_percent > 100)
+ volume_percent = 100;
+
+ if (volume_percent >= 0)
+ ret = 7;
+ if (volume_percent >= 13) /* 12.5 */
+ ret = 6;
+ if (volume_percent >= 25)
+ ret = 5;
+ if (volume_percent >= 38) /* 37.5 */
+ ret = 4;
+ if (volume_percent >= 50)
+ ret = 3;
+ if (volume_percent >= 63) /* 62.5 */
+ ret = 2; /* This is the default volume */
+ if (volume_percent >= 75)
+ ret = 1;
+ if (volume_percent >= 88) /* 87.5 */
+ ret = 0;
+
+ ret |= 0x80;
+
+ return ret;
+}
+
+static void lkkbd_detection_done(struct lkkbd *lk)
+{
+ int i;
+
+ /*
+ * Reset setting for Compose key. Let Compose be KEY_COMPOSE.
+ */
+ lk->keycode[0xb1] = KEY_COMPOSE;
+
+ /*
+ * Print keyboard name and modify Compose=Alt on user's request.
+ */
+ switch (lk->id[4]) {
+ case 1:
+ strlcpy(lk->name, "DEC LK201 keyboard", sizeof(lk->name));
+
+ if (lk201_compose_is_alt)
+ lk->keycode[0xb1] = KEY_LEFTALT;
+ break;
+
+ case 2:
+ strlcpy(lk->name, "DEC LK401 keyboard", sizeof(lk->name));
+ break;
+
+ default:
+ strlcpy(lk->name, "Unknown DEC keyboard", sizeof(lk->name));
+ printk(KERN_ERR
+ "lkkbd: keyboard on %s is unknown, please report to "
+ "Jan-Benedict Glaw <jbglaw@lug-owl.de>\n", lk->phys);
+ printk(KERN_ERR "lkkbd: keyboard ID'ed as:");
+ for (i = 0; i < LK_NUM_IGNORE_BYTES; i++)
+ printk(" 0x%02x", lk->id[i]);
+ printk("\n");
+ break;
+ }
+
+ printk(KERN_INFO "lkkbd: keyboard on %s identified as: %s\n",
+ lk->phys, lk->name);
+
+ /*
+ * Report errors during keyboard boot-up.
+ */
+ switch (lk->id[2]) {
+ case 0x00:
+ /* All okay */
+ break;
+
+ case LK_STUCK_KEY:
+ printk(KERN_ERR "lkkbd: Stuck key on keyboard at %s\n",
+ lk->phys);
+ break;
+
+ case LK_SELFTEST_FAILED:
+ printk(KERN_ERR
+ "lkkbd: Selftest failed on keyboard at %s, "
+ "keyboard may not work properly\n", lk->phys);
+ break;
+
+ default:
+ printk(KERN_ERR
+ "lkkbd: Unknown error %02x on keyboard at %s\n",
+ lk->id[2], lk->phys);
+ break;
+ }
+
+ /*
+ * Try to hint user if there's a stuck key.
+ */
+ if (lk->id[2] == LK_STUCK_KEY && lk->id[3] != 0)
+ printk(KERN_ERR
+ "Scancode of stuck key is 0x%02x, keycode is 0x%04x\n",
+ lk->id[3], lk->keycode[lk->id[3]]);
+}
+
+/*
+ * lkkbd_interrupt() is called by the low level driver when a character
+ * is received.
+ */
+static irqreturn_t lkkbd_interrupt(struct serio *serio,
+ unsigned char data, unsigned int flags)
+{
+ struct lkkbd *lk = serio_get_drvdata(serio);
+ struct input_dev *input_dev = lk->dev;
+ unsigned int keycode;
+ int i;
+
+ DBG(KERN_INFO "Got byte 0x%02x\n", data);
+
+ if (lk->ignore_bytes > 0) {
+ DBG(KERN_INFO "Ignoring a byte on %s\n", lk->name);
+ lk->id[LK_NUM_IGNORE_BYTES - lk->ignore_bytes--] = data;
+
+ if (lk->ignore_bytes == 0)
+ lkkbd_detection_done(lk);
+
+ return IRQ_HANDLED;
+ }
+
+ switch (data) {
+ case LK_ALL_KEYS_UP:
+ for (i = 0; i < ARRAY_SIZE(lkkbd_keycode); i++)
+ input_report_key(input_dev, lk->keycode[i], 0);
+ input_sync(input_dev);
+ break;
+
+ case 0x01:
+ DBG(KERN_INFO "Got 0x01, scheduling re-initialization\n");
+ lk->ignore_bytes = LK_NUM_IGNORE_BYTES;
+ lk->id[LK_NUM_IGNORE_BYTES - lk->ignore_bytes--] = data;
+ schedule_work(&lk->tq);
+ break;
+
+ case LK_METRONOME:
+ case LK_OUTPUT_ERROR:
+ case LK_INPUT_ERROR:
+ case LK_KBD_LOCKED:
+ case LK_KBD_TEST_MODE_ACK:
+ case LK_PREFIX_KEY_DOWN:
+ case LK_MODE_CHANGE_ACK:
+ case LK_RESPONSE_RESERVED:
+ DBG(KERN_INFO "Got %s and don't know how to handle...\n",
+ response_name(data));
+ break;
+
+ default:
+ keycode = lk->keycode[data];
+ if (keycode != KEY_RESERVED) {
+ input_report_key(input_dev, keycode,
+ !test_bit(keycode, input_dev->key));
+ input_sync(input_dev);
+ } else {
+ printk(KERN_WARNING
+ "%s: Unknown key with scancode 0x%02x on %s.\n",
+ __FILE__, data, lk->name);
+ }
+ }
+
+ return IRQ_HANDLED;
+}
+
+static void lkkbd_toggle_leds(struct lkkbd *lk)
+{
+ struct serio *serio = lk->serio;
+ unsigned char leds_on = 0;
+ unsigned char leds_off = 0;
+
+ CHECK_LED(lk, leds_on, leds_off, LED_CAPSL, LK_LED_SHIFTLOCK);
+ CHECK_LED(lk, leds_on, leds_off, LED_COMPOSE, LK_LED_COMPOSE);
+ CHECK_LED(lk, leds_on, leds_off, LED_SCROLLL, LK_LED_SCROLLLOCK);
+ CHECK_LED(lk, leds_on, leds_off, LED_SLEEP, LK_LED_WAIT);
+ if (leds_on != 0) {
+ serio_write(serio, LK_CMD_LED_ON);
+ serio_write(serio, leds_on);
+ }
+ if (leds_off != 0) {
+ serio_write(serio, LK_CMD_LED_OFF);
+ serio_write(serio, leds_off);
+ }
+}
+
+static void lkkbd_toggle_keyclick(struct lkkbd *lk, bool on)
+{
+ struct serio *serio = lk->serio;
+
+ if (on) {
+ DBG("%s: Activating key clicks\n", __func__);
+ serio_write(serio, LK_CMD_ENABLE_KEYCLICK);
+ serio_write(serio, volume_to_hw(lk->keyclick_volume));
+ serio_write(serio, LK_CMD_ENABLE_CTRCLICK);
+ serio_write(serio, volume_to_hw(lk->ctrlclick_volume));
+ } else {
+ DBG("%s: Deactivating key clicks\n", __func__);
+ serio_write(serio, LK_CMD_DISABLE_KEYCLICK);
+ serio_write(serio, LK_CMD_DISABLE_CTRCLICK);
+ }
+
+}
+
+/*
+ * lkkbd_event() handles events from the input module.
+ */
+static int lkkbd_event(struct input_dev *dev,
+ unsigned int type, unsigned int code, int value)
+{
+ struct lkkbd *lk = input_get_drvdata(dev);
+
+ switch (type) {
+ case EV_LED:
+ lkkbd_toggle_leds(lk);
+ return 0;
+
+ case EV_SND:
+ switch (code) {
+ case SND_CLICK:
+ lkkbd_toggle_keyclick(lk, value);
+ return 0;
+
+ case SND_BELL:
+ if (value != 0)
+ serio_write(lk->serio, LK_CMD_SOUND_BELL);
+
+ return 0;
+ }
+
+ break;
+
+ default:
+ printk(KERN_ERR "%s(): Got unknown type %d, code %d, value %d\n",
+ __func__, type, code, value);
+ }
+
+ return -1;
+}
+
+/*
+ * lkkbd_reinit() sets leds and beeps to a state the computer remembers they
+ * were in.
+ */
+static void lkkbd_reinit(struct work_struct *work)
+{
+ struct lkkbd *lk = container_of(work, struct lkkbd, tq);
+ int division;
+
+ /* Ask for ID */
+ serio_write(lk->serio, LK_CMD_REQUEST_ID);
+
+ /* Reset parameters */
+ serio_write(lk->serio, LK_CMD_SET_DEFAULTS);
+
+ /* Set LEDs */
+ lkkbd_toggle_leds(lk);
+
+ /*
+ * Try to activate extended LK401 mode. This command will
+ * only work with a LK401 keyboard and grants access to
+ * LAlt, RAlt, RCompose and RShift.
+ */
+ serio_write(lk->serio, LK_CMD_ENABLE_LK401);
+
+ /* Set all keys to UPDOWN mode */
+ for (division = 1; division <= 14; division++)
+ serio_write(lk->serio,
+ LK_CMD_SET_MODE(LK_MODE_UPDOWN, division));
+
+ /* Enable bell and set volume */
+ serio_write(lk->serio, LK_CMD_ENABLE_BELL);
+ serio_write(lk->serio, volume_to_hw(lk->bell_volume));
+
+ /* Enable/disable keyclick (and possibly set volume) */
+ lkkbd_toggle_keyclick(lk, test_bit(SND_CLICK, lk->dev->snd));
+
+ /* Sound the bell if needed */
+ if (test_bit(SND_BELL, lk->dev->snd))
+ serio_write(lk->serio, LK_CMD_SOUND_BELL);
+}
+
+/*
+ * lkkbd_connect() probes for a LK keyboard and fills the necessary structures.
+ */
+static int lkkbd_connect(struct serio *serio, struct serio_driver *drv)
+{
+ struct lkkbd *lk;
+ struct input_dev *input_dev;
+ int i;
+ int err;
+
+ lk = kzalloc(sizeof(struct lkkbd), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!lk || !input_dev) {
+ err = -ENOMEM;
+ goto fail1;
+ }
+
+ lk->serio = serio;
+ lk->dev = input_dev;
+ INIT_WORK(&lk->tq, lkkbd_reinit);
+ lk->bell_volume = bell_volume;
+ lk->keyclick_volume = keyclick_volume;
+ lk->ctrlclick_volume = ctrlclick_volume;
+ memcpy(lk->keycode, lkkbd_keycode, sizeof(lk->keycode));
+
+ strlcpy(lk->name, "DEC LK keyboard", sizeof(lk->name));
+ snprintf(lk->phys, sizeof(lk->phys), "%s/input0", serio->phys);
+
+ input_dev->name = lk->name;
+ input_dev->phys = lk->phys;
+ input_dev->id.bustype = BUS_RS232;
+ input_dev->id.vendor = SERIO_LKKBD;
+ input_dev->id.product = 0;
+ input_dev->id.version = 0x0100;
+ input_dev->dev.parent = &serio->dev;
+ input_dev->event = lkkbd_event;
+
+ input_set_drvdata(input_dev, lk);
+
+ __set_bit(EV_KEY, input_dev->evbit);
+ __set_bit(EV_LED, input_dev->evbit);
+ __set_bit(EV_SND, input_dev->evbit);
+ __set_bit(EV_REP, input_dev->evbit);
+ __set_bit(LED_CAPSL, input_dev->ledbit);
+ __set_bit(LED_SLEEP, input_dev->ledbit);
+ __set_bit(LED_COMPOSE, input_dev->ledbit);
+ __set_bit(LED_SCROLLL, input_dev->ledbit);
+ __set_bit(SND_BELL, input_dev->sndbit);
+ __set_bit(SND_CLICK, input_dev->sndbit);
+
+ input_dev->keycode = lk->keycode;
+ input_dev->keycodesize = sizeof(lk->keycode[0]);
+ input_dev->keycodemax = ARRAY_SIZE(lk->keycode);
+
+ for (i = 0; i < LK_NUM_KEYCODES; i++)
+ __set_bit(lk->keycode[i], input_dev->keybit);
+ __clear_bit(KEY_RESERVED, input_dev->keybit);
+
+ serio_set_drvdata(serio, lk);
+
+ err = serio_open(serio, drv);
+ if (err)
+ goto fail2;
+
+ err = input_register_device(lk->dev);
+ if (err)
+ goto fail3;
+
+ serio_write(lk->serio, LK_CMD_POWERCYCLE_RESET);
+
+ return 0;
+
+ fail3: serio_close(serio);
+ fail2: serio_set_drvdata(serio, NULL);
+ fail1: input_free_device(input_dev);
+ kfree(lk);
+ return err;
+}
+
+/*
+ * lkkbd_disconnect() unregisters and closes behind us.
+ */
+static void lkkbd_disconnect(struct serio *serio)
+{
+ struct lkkbd *lk = serio_get_drvdata(serio);
+
+ input_get_device(lk->dev);
+ input_unregister_device(lk->dev);
+ serio_close(serio);
+ serio_set_drvdata(serio, NULL);
+ input_put_device(lk->dev);
+ kfree(lk);
+}
+
+static struct serio_device_id lkkbd_serio_ids[] = {
+ {
+ .type = SERIO_RS232,
+ .proto = SERIO_LKKBD,
+ .id = SERIO_ANY,
+ .extra = SERIO_ANY,
+ },
+ { 0 }
+};
+
+MODULE_DEVICE_TABLE(serio, lkkbd_serio_ids);
+
+static struct serio_driver lkkbd_drv = {
+ .driver = {
+ .name = "lkkbd",
+ },
+ .description = DRIVER_DESC,
+ .id_table = lkkbd_serio_ids,
+ .connect = lkkbd_connect,
+ .disconnect = lkkbd_disconnect,
+ .interrupt = lkkbd_interrupt,
+};
+
+/*
+ * The functions for insering/removing us as a module.
+ */
+static int __init lkkbd_init(void)
+{
+ return serio_register_driver(&lkkbd_drv);
+}
+
+static void __exit lkkbd_exit(void)
+{
+ serio_unregister_driver(&lkkbd_drv);
+}
+
+module_init(lkkbd_init);
+module_exit(lkkbd_exit);
+
diff --git a/drivers/input/keyboard/lm8323.c b/drivers/input/keyboard/lm8323.c
new file mode 100644
index 0000000..82d1dc8
--- /dev/null
+++ b/drivers/input/keyboard/lm8323.c
@@ -0,0 +1,872 @@
+/*
+ * drivers/i2c/chips/lm8323.c
+ *
+ * Copyright (C) 2007-2009 Nokia Corporation
+ *
+ * Written by Daniel Stone <daniel.stone@nokia.com>
+ * Timo O. Karjalainen <timo.o.karjalainen@nokia.com>
+ *
+ * Updated by Felipe Balbi <felipe.balbi@nokia.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation (version 2 of the License only).
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <linux/module.h>
+#include <linux/i2c.h>
+#include <linux/interrupt.h>
+#include <linux/sched.h>
+#include <linux/mutex.h>
+#include <linux/delay.h>
+#include <linux/input.h>
+#include <linux/leds.h>
+#include <linux/pm.h>
+#include <linux/i2c/lm8323.h>
+#include <linux/slab.h>
+
+/* Commands to send to the chip. */
+#define LM8323_CMD_READ_ID 0x80 /* Read chip ID. */
+#define LM8323_CMD_WRITE_CFG 0x81 /* Set configuration item. */
+#define LM8323_CMD_READ_INT 0x82 /* Get interrupt status. */
+#define LM8323_CMD_RESET 0x83 /* Reset, same as external one */
+#define LM8323_CMD_WRITE_PORT_SEL 0x85 /* Set GPIO in/out. */
+#define LM8323_CMD_WRITE_PORT_STATE 0x86 /* Set GPIO pullup. */
+#define LM8323_CMD_READ_PORT_SEL 0x87 /* Get GPIO in/out. */
+#define LM8323_CMD_READ_PORT_STATE 0x88 /* Get GPIO pullup. */
+#define LM8323_CMD_READ_FIFO 0x89 /* Read byte from FIFO. */
+#define LM8323_CMD_RPT_READ_FIFO 0x8a /* Read FIFO (no increment). */
+#define LM8323_CMD_SET_ACTIVE 0x8b /* Set active time. */
+#define LM8323_CMD_READ_ERR 0x8c /* Get error status. */
+#define LM8323_CMD_READ_ROTATOR 0x8e /* Read rotator status. */
+#define LM8323_CMD_SET_DEBOUNCE 0x8f /* Set debouncing time. */
+#define LM8323_CMD_SET_KEY_SIZE 0x90 /* Set keypad size. */
+#define LM8323_CMD_READ_KEY_SIZE 0x91 /* Get keypad size. */
+#define LM8323_CMD_READ_CFG 0x92 /* Get configuration item. */
+#define LM8323_CMD_WRITE_CLOCK 0x93 /* Set clock config. */
+#define LM8323_CMD_READ_CLOCK 0x94 /* Get clock config. */
+#define LM8323_CMD_PWM_WRITE 0x95 /* Write PWM script. */
+#define LM8323_CMD_START_PWM 0x96 /* Start PWM engine. */
+#define LM8323_CMD_STOP_PWM 0x97 /* Stop PWM engine. */
+
+/* Interrupt status. */
+#define INT_KEYPAD 0x01 /* Key event. */
+#define INT_ROTATOR 0x02 /* Rotator event. */
+#define INT_ERROR 0x08 /* Error: use CMD_READ_ERR. */
+#define INT_NOINIT 0x10 /* Lost configuration. */
+#define INT_PWM1 0x20 /* PWM1 stopped. */
+#define INT_PWM2 0x40 /* PWM2 stopped. */
+#define INT_PWM3 0x80 /* PWM3 stopped. */
+
+/* Errors (signalled by INT_ERROR, read with CMD_READ_ERR). */
+#define ERR_BADPAR 0x01 /* Bad parameter. */
+#define ERR_CMDUNK 0x02 /* Unknown command. */
+#define ERR_KEYOVR 0x04 /* Too many keys pressed. */
+#define ERR_FIFOOVER 0x40 /* FIFO overflow. */
+
+/* Configuration keys (CMD_{WRITE,READ}_CFG). */
+#define CFG_MUX1SEL 0x01 /* Select MUX1_OUT input. */
+#define CFG_MUX1EN 0x02 /* Enable MUX1_OUT. */
+#define CFG_MUX2SEL 0x04 /* Select MUX2_OUT input. */
+#define CFG_MUX2EN 0x08 /* Enable MUX2_OUT. */
+#define CFG_PSIZE 0x20 /* Package size (must be 0). */
+#define CFG_ROTEN 0x40 /* Enable rotator. */
+
+/* Clock settings (CMD_{WRITE,READ}_CLOCK). */
+#define CLK_RCPWM_INTERNAL 0x00
+#define CLK_RCPWM_EXTERNAL 0x03
+#define CLK_SLOWCLKEN 0x08 /* Enable 32.768kHz clock. */
+#define CLK_SLOWCLKOUT 0x40 /* Enable slow pulse output. */
+
+/* The possible addresses corresponding to CONFIG1 and CONFIG2 pin wirings. */
+#define LM8323_I2C_ADDR00 (0x84 >> 1) /* 1000 010x */
+#define LM8323_I2C_ADDR01 (0x86 >> 1) /* 1000 011x */
+#define LM8323_I2C_ADDR10 (0x88 >> 1) /* 1000 100x */
+#define LM8323_I2C_ADDR11 (0x8A >> 1) /* 1000 101x */
+
+/* Key event fifo length */
+#define LM8323_FIFO_LEN 15
+
+/* Commands for PWM engine; feed in with PWM_WRITE. */
+/* Load ramp counter from duty cycle field (range 0 - 0xff). */
+#define PWM_SET(v) (0x4000 | ((v) & 0xff))
+/* Go to start of script. */
+#define PWM_GOTOSTART 0x0000
+/*
+ * Stop engine (generates interrupt). If reset is 1, clear the program
+ * counter, else leave it.
+ */
+#define PWM_END(reset) (0xc000 | (!!(reset) << 11))
+/*
+ * Ramp. If s is 1, divide clock by 512, else divide clock by 16.
+ * Take t clock scales (up to 63) per step, for n steps (up to 126).
+ * If u is set, ramp up, else ramp down.
+ */
+#define PWM_RAMP(s, t, n, u) ((!!(s) << 14) | ((t) & 0x3f) << 8 | \
+ ((n) & 0x7f) | ((u) ? 0 : 0x80))
+/*
+ * Loop (i.e. jump back to pos) for a given number of iterations (up to 63).
+ * If cnt is zero, execute until PWM_END is encountered.
+ */
+#define PWM_LOOP(cnt, pos) (0xa000 | (((cnt) & 0x3f) << 7) | \
+ ((pos) & 0x3f))
+/*
+ * Wait for trigger. Argument is a mask of channels, shifted by the channel
+ * number, e.g. 0xa for channels 3 and 1. Note that channels are numbered
+ * from 1, not 0.
+ */
+#define PWM_WAIT_TRIG(chans) (0xe000 | (((chans) & 0x7) << 6))
+/* Send trigger. Argument is same as PWM_WAIT_TRIG. */
+#define PWM_SEND_TRIG(chans) (0xe000 | ((chans) & 0x7))
+
+struct lm8323_pwm {
+ int id;
+ int fade_time;
+ int brightness;
+ int desired_brightness;
+ bool enabled;
+ bool running;
+ /* pwm lock */
+ struct mutex lock;
+ struct work_struct work;
+ struct led_classdev cdev;
+ struct lm8323_chip *chip;
+};
+
+struct lm8323_chip {
+ /* device lock */
+ struct mutex lock;
+ struct i2c_client *client;
+ struct input_dev *idev;
+ bool kp_enabled;
+ bool pm_suspend;
+ unsigned keys_down;
+ char phys[32];
+ unsigned short keymap[LM8323_KEYMAP_SIZE];
+ int size_x;
+ int size_y;
+ int debounce_time;
+ int active_time;
+ struct lm8323_pwm pwm[LM8323_NUM_PWMS];
+};
+
+#define client_to_lm8323(c) container_of(c, struct lm8323_chip, client)
+#define dev_to_lm8323(d) container_of(d, struct lm8323_chip, client->dev)
+#define cdev_to_pwm(c) container_of(c, struct lm8323_pwm, cdev)
+#define work_to_pwm(w) container_of(w, struct lm8323_pwm, work)
+
+#define LM8323_MAX_DATA 8
+
+/*
+ * To write, we just access the chip's address in write mode, and dump the
+ * command and data out on the bus. The command byte and data are taken as
+ * sequential u8s out of varargs, to a maximum of LM8323_MAX_DATA.
+ */
+static int lm8323_write(struct lm8323_chip *lm, int len, ...)
+{
+ int ret, i;
+ va_list ap;
+ u8 data[LM8323_MAX_DATA];
+
+ va_start(ap, len);
+
+ if (unlikely(len > LM8323_MAX_DATA)) {
+ dev_err(&lm->client->dev, "tried to send %d bytes\n", len);
+ va_end(ap);
+ return 0;
+ }
+
+ for (i = 0; i < len; i++)
+ data[i] = va_arg(ap, int);
+
+ va_end(ap);
+
+ /*
+ * If the host is asleep while we send the data, we can get a NACK
+ * back while it wakes up, so try again, once.
+ */
+ ret = i2c_master_send(lm->client, data, len);
+ if (unlikely(ret == -EREMOTEIO))
+ ret = i2c_master_send(lm->client, data, len);
+ if (unlikely(ret != len))
+ dev_err(&lm->client->dev, "sent %d bytes of %d total\n",
+ len, ret);
+
+ return ret;
+}
+
+/*
+ * To read, we first send the command byte to the chip and end the transaction,
+ * then access the chip in read mode, at which point it will send the data.
+ */
+static int lm8323_read(struct lm8323_chip *lm, u8 cmd, u8 *buf, int len)
+{
+ int ret;
+
+ /*
+ * If the host is asleep while we send the byte, we can get a NACK
+ * back while it wakes up, so try again, once.
+ */
+ ret = i2c_master_send(lm->client, &cmd, 1);
+ if (unlikely(ret == -EREMOTEIO))
+ ret = i2c_master_send(lm->client, &cmd, 1);
+ if (unlikely(ret != 1)) {
+ dev_err(&lm->client->dev, "sending read cmd 0x%02x failed\n",
+ cmd);
+ return 0;
+ }
+
+ ret = i2c_master_recv(lm->client, buf, len);
+ if (unlikely(ret != len))
+ dev_err(&lm->client->dev, "wanted %d bytes, got %d\n",
+ len, ret);
+
+ return ret;
+}
+
+/*
+ * Set the chip active time (idle time before it enters halt).
+ */
+static void lm8323_set_active_time(struct lm8323_chip *lm, int time)
+{
+ lm8323_write(lm, 2, LM8323_CMD_SET_ACTIVE, time >> 2);
+}
+
+/*
+ * The signals are AT-style: the low 7 bits are the keycode, and the top
+ * bit indicates the state (1 for down, 0 for up).
+ */
+static inline u8 lm8323_whichkey(u8 event)
+{
+ return event & 0x7f;
+}
+
+static inline int lm8323_ispress(u8 event)
+{
+ return (event & 0x80) ? 1 : 0;
+}
+
+static void process_keys(struct lm8323_chip *lm)
+{
+ u8 event;
+ u8 key_fifo[LM8323_FIFO_LEN + 1];
+ int old_keys_down = lm->keys_down;
+ int ret;
+ int i = 0;
+
+ /*
+ * Read all key events from the FIFO at once. Next READ_FIFO clears the
+ * FIFO even if we didn't read all events previously.
+ */
+ ret = lm8323_read(lm, LM8323_CMD_READ_FIFO, key_fifo, LM8323_FIFO_LEN);
+
+ if (ret < 0) {
+ dev_err(&lm->client->dev, "Failed reading fifo \n");
+ return;
+ }
+ key_fifo[ret] = 0;
+
+ while ((event = key_fifo[i++])) {
+ u8 key = lm8323_whichkey(event);
+ int isdown = lm8323_ispress(event);
+ unsigned short keycode = lm->keymap[key];
+
+ dev_vdbg(&lm->client->dev, "key 0x%02x %s\n",
+ key, isdown ? "down" : "up");
+
+ if (lm->kp_enabled) {
+ input_event(lm->idev, EV_MSC, MSC_SCAN, key);
+ input_report_key(lm->idev, keycode, isdown);
+ input_sync(lm->idev);
+ }
+
+ if (isdown)
+ lm->keys_down++;
+ else
+ lm->keys_down--;
+ }
+
+ /*
+ * Errata: We need to ensure that the chip never enters halt mode
+ * during a keypress, so set active time to 0. When it's released,
+ * we can enter halt again, so set the active time back to normal.
+ */
+ if (!old_keys_down && lm->keys_down)
+ lm8323_set_active_time(lm, 0);
+ if (old_keys_down && !lm->keys_down)
+ lm8323_set_active_time(lm, lm->active_time);
+}
+
+static void lm8323_process_error(struct lm8323_chip *lm)
+{
+ u8 error;
+
+ if (lm8323_read(lm, LM8323_CMD_READ_ERR, &error, 1) == 1) {
+ if (error & ERR_FIFOOVER)
+ dev_vdbg(&lm->client->dev, "fifo overflow!\n");
+ if (error & ERR_KEYOVR)
+ dev_vdbg(&lm->client->dev,
+ "more than two keys pressed\n");
+ if (error & ERR_CMDUNK)
+ dev_vdbg(&lm->client->dev,
+ "unknown command submitted\n");
+ if (error & ERR_BADPAR)
+ dev_vdbg(&lm->client->dev, "bad command parameter\n");
+ }
+}
+
+static void lm8323_reset(struct lm8323_chip *lm)
+{
+ /* The docs say we must pass 0xAA as the data byte. */
+ lm8323_write(lm, 2, LM8323_CMD_RESET, 0xAA);
+}
+
+static int lm8323_configure(struct lm8323_chip *lm)
+{
+ int keysize = (lm->size_x << 4) | lm->size_y;
+ int clock = (CLK_SLOWCLKEN | CLK_RCPWM_EXTERNAL);
+ int debounce = lm->debounce_time >> 2;
+ int active = lm->active_time >> 2;
+
+ /*
+ * Active time must be greater than the debounce time: if it's
+ * a close-run thing, give ourselves a 12ms buffer.
+ */
+ if (debounce >= active)
+ active = debounce + 3;
+
+ lm8323_write(lm, 2, LM8323_CMD_WRITE_CFG, 0);
+ lm8323_write(lm, 2, LM8323_CMD_WRITE_CLOCK, clock);
+ lm8323_write(lm, 2, LM8323_CMD_SET_KEY_SIZE, keysize);
+ lm8323_set_active_time(lm, lm->active_time);
+ lm8323_write(lm, 2, LM8323_CMD_SET_DEBOUNCE, debounce);
+ lm8323_write(lm, 3, LM8323_CMD_WRITE_PORT_STATE, 0xff, 0xff);
+ lm8323_write(lm, 3, LM8323_CMD_WRITE_PORT_SEL, 0, 0);
+
+ /*
+ * Not much we can do about errors at this point, so just hope
+ * for the best.
+ */
+
+ return 0;
+}
+
+static void pwm_done(struct lm8323_pwm *pwm)
+{
+ mutex_lock(&pwm->lock);
+ pwm->running = false;
+ if (pwm->desired_brightness != pwm->brightness)
+ schedule_work(&pwm->work);
+ mutex_unlock(&pwm->lock);
+}
+
+/*
+ * Bottom half: handle the interrupt by posting key events, or dealing with
+ * errors appropriately.
+ */
+static irqreturn_t lm8323_irq(int irq, void *_lm)
+{
+ struct lm8323_chip *lm = _lm;
+ u8 ints;
+ int i;
+
+ mutex_lock(&lm->lock);
+
+ while ((lm8323_read(lm, LM8323_CMD_READ_INT, &ints, 1) == 1) && ints) {
+ if (likely(ints & INT_KEYPAD))
+ process_keys(lm);
+ if (ints & INT_ROTATOR) {
+ /* We don't currently support the rotator. */
+ dev_vdbg(&lm->client->dev, "rotator fired\n");
+ }
+ if (ints & INT_ERROR) {
+ dev_vdbg(&lm->client->dev, "error!\n");
+ lm8323_process_error(lm);
+ }
+ if (ints & INT_NOINIT) {
+ dev_err(&lm->client->dev, "chip lost config; "
+ "reinitialising\n");
+ lm8323_configure(lm);
+ }
+ for (i = 0; i < LM8323_NUM_PWMS; i++) {
+ if (ints & (1 << (INT_PWM1 + i))) {
+ dev_vdbg(&lm->client->dev,
+ "pwm%d engine completed\n", i);
+ pwm_done(&lm->pwm[i]);
+ }
+ }
+ }
+
+ mutex_unlock(&lm->lock);
+
+ return IRQ_HANDLED;
+}
+
+/*
+ * Read the chip ID.
+ */
+static int lm8323_read_id(struct lm8323_chip *lm, u8 *buf)
+{
+ int bytes;
+
+ bytes = lm8323_read(lm, LM8323_CMD_READ_ID, buf, 2);
+ if (unlikely(bytes != 2))
+ return -EIO;
+
+ return 0;
+}
+
+static void lm8323_write_pwm_one(struct lm8323_pwm *pwm, int pos, u16 cmd)
+{
+ lm8323_write(pwm->chip, 4, LM8323_CMD_PWM_WRITE, (pos << 2) | pwm->id,
+ (cmd & 0xff00) >> 8, cmd & 0x00ff);
+}
+
+/*
+ * Write a script into a given PWM engine, concluding with PWM_END.
+ * If 'kill' is nonzero, the engine will be shut down at the end
+ * of the script, producing a zero output. Otherwise the engine
+ * will be kept running at the final PWM level indefinitely.
+ */
+static void lm8323_write_pwm(struct lm8323_pwm *pwm, int kill,
+ int len, const u16 *cmds)
+{
+ int i;
+
+ for (i = 0; i < len; i++)
+ lm8323_write_pwm_one(pwm, i, cmds[i]);
+
+ lm8323_write_pwm_one(pwm, i++, PWM_END(kill));
+ lm8323_write(pwm->chip, 2, LM8323_CMD_START_PWM, pwm->id);
+ pwm->running = true;
+}
+
+static void lm8323_pwm_work(struct work_struct *work)
+{
+ struct lm8323_pwm *pwm = work_to_pwm(work);
+ int div512, perstep, steps, hz, up, kill;
+ u16 pwm_cmds[3];
+ int num_cmds = 0;
+
+ mutex_lock(&pwm->lock);
+
+ /*
+ * Do nothing if we're already at the requested level,
+ * or previous setting is not yet complete. In the latter
+ * case we will be called again when the previous PWM script
+ * finishes.
+ */
+ if (pwm->running || pwm->desired_brightness == pwm->brightness)
+ goto out;
+
+ kill = (pwm->desired_brightness == 0);
+ up = (pwm->desired_brightness > pwm->brightness);
+ steps = abs(pwm->desired_brightness - pwm->brightness);
+
+ /*
+ * Convert time (in ms) into a divisor (512 or 16 on a refclk of
+ * 32768Hz), and number of ticks per step.
+ */
+ if ((pwm->fade_time / steps) > (32768 / 512)) {
+ div512 = 1;
+ hz = 32768 / 512;
+ } else {
+ div512 = 0;
+ hz = 32768 / 16;
+ }
+
+ perstep = (hz * pwm->fade_time) / (steps * 1000);
+
+ if (perstep == 0)
+ perstep = 1;
+ else if (perstep > 63)
+ perstep = 63;
+
+ while (steps) {
+ int s;
+
+ s = min(126, steps);
+ pwm_cmds[num_cmds++] = PWM_RAMP(div512, perstep, s, up);
+ steps -= s;
+ }
+
+ lm8323_write_pwm(pwm, kill, num_cmds, pwm_cmds);
+ pwm->brightness = pwm->desired_brightness;
+
+ out:
+ mutex_unlock(&pwm->lock);
+}
+
+static void lm8323_pwm_set_brightness(struct led_classdev *led_cdev,
+ enum led_brightness brightness)
+{
+ struct lm8323_pwm *pwm = cdev_to_pwm(led_cdev);
+ struct lm8323_chip *lm = pwm->chip;
+
+ mutex_lock(&pwm->lock);
+ pwm->desired_brightness = brightness;
+ mutex_unlock(&pwm->lock);
+
+ if (in_interrupt()) {
+ schedule_work(&pwm->work);
+ } else {
+ /*
+ * Schedule PWM work as usual unless we are going into suspend
+ */
+ mutex_lock(&lm->lock);
+ if (likely(!lm->pm_suspend))
+ schedule_work(&pwm->work);
+ else
+ lm8323_pwm_work(&pwm->work);
+ mutex_unlock(&lm->lock);
+ }
+}
+
+static ssize_t lm8323_pwm_show_time(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct led_classdev *led_cdev = dev_get_drvdata(dev);
+ struct lm8323_pwm *pwm = cdev_to_pwm(led_cdev);
+
+ return sprintf(buf, "%d\n", pwm->fade_time);
+}
+
+static ssize_t lm8323_pwm_store_time(struct device *dev,
+ struct device_attribute *attr, const char *buf, size_t len)
+{
+ struct led_classdev *led_cdev = dev_get_drvdata(dev);
+ struct lm8323_pwm *pwm = cdev_to_pwm(led_cdev);
+ int ret;
+ unsigned long time;
+
+ ret = strict_strtoul(buf, 10, &time);
+ /* Numbers only, please. */
+ if (ret)
+ return -EINVAL;
+
+ pwm->fade_time = time;
+
+ return strlen(buf);
+}
+static DEVICE_ATTR(time, 0644, lm8323_pwm_show_time, lm8323_pwm_store_time);
+
+static int init_pwm(struct lm8323_chip *lm, int id, struct device *dev,
+ const char *name)
+{
+ struct lm8323_pwm *pwm;
+
+ BUG_ON(id > 3);
+
+ pwm = &lm->pwm[id - 1];
+
+ pwm->id = id;
+ pwm->fade_time = 0;
+ pwm->brightness = 0;
+ pwm->desired_brightness = 0;
+ pwm->running = false;
+ pwm->enabled = false;
+ INIT_WORK(&pwm->work, lm8323_pwm_work);
+ mutex_init(&pwm->lock);
+ pwm->chip = lm;
+
+ if (name) {
+ pwm->cdev.name = name;
+ pwm->cdev.brightness_set = lm8323_pwm_set_brightness;
+ if (led_classdev_register(dev, &pwm->cdev) < 0) {
+ dev_err(dev, "couldn't register PWM %d\n", id);
+ return -1;
+ }
+ if (device_create_file(pwm->cdev.dev,
+ &dev_attr_time) < 0) {
+ dev_err(dev, "couldn't register time attribute\n");
+ led_classdev_unregister(&pwm->cdev);
+ return -1;
+ }
+ pwm->enabled = true;
+ }
+
+ return 0;
+}
+
+static struct i2c_driver lm8323_i2c_driver;
+
+static ssize_t lm8323_show_disable(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct lm8323_chip *lm = dev_get_drvdata(dev);
+
+ return sprintf(buf, "%u\n", !lm->kp_enabled);
+}
+
+static ssize_t lm8323_set_disable(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct lm8323_chip *lm = dev_get_drvdata(dev);
+ int ret;
+ unsigned long i;
+
+ ret = strict_strtoul(buf, 10, &i);
+
+ mutex_lock(&lm->lock);
+ lm->kp_enabled = !i;
+ mutex_unlock(&lm->lock);
+
+ return count;
+}
+static DEVICE_ATTR(disable_kp, 0644, lm8323_show_disable, lm8323_set_disable);
+
+static int __devinit lm8323_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct lm8323_platform_data *pdata = client->dev.platform_data;
+ struct input_dev *idev;
+ struct lm8323_chip *lm;
+ int pwm;
+ int i, err;
+ unsigned long tmo;
+ u8 data[2];
+
+ if (!pdata || !pdata->size_x || !pdata->size_y) {
+ dev_err(&client->dev, "missing platform_data\n");
+ return -EINVAL;
+ }
+
+ if (pdata->size_x > 8) {
+ dev_err(&client->dev, "invalid x size %d specified\n",
+ pdata->size_x);
+ return -EINVAL;
+ }
+
+ if (pdata->size_y > 12) {
+ dev_err(&client->dev, "invalid y size %d specified\n",
+ pdata->size_y);
+ return -EINVAL;
+ }
+
+ lm = kzalloc(sizeof *lm, GFP_KERNEL);
+ idev = input_allocate_device();
+ if (!lm || !idev) {
+ err = -ENOMEM;
+ goto fail1;
+ }
+
+ lm->client = client;
+ lm->idev = idev;
+ mutex_init(&lm->lock);
+
+ lm->size_x = pdata->size_x;
+ lm->size_y = pdata->size_y;
+ dev_vdbg(&client->dev, "Keypad size: %d x %d\n",
+ lm->size_x, lm->size_y);
+
+ lm->debounce_time = pdata->debounce_time;
+ lm->active_time = pdata->active_time;
+
+ lm8323_reset(lm);
+
+ /* Nothing's set up to service the IRQ yet, so just spin for max.
+ * 100ms until we can configure. */
+ tmo = jiffies + msecs_to_jiffies(100);
+ while (lm8323_read(lm, LM8323_CMD_READ_INT, data, 1) == 1) {
+ if (data[0] & INT_NOINIT)
+ break;
+
+ if (time_after(jiffies, tmo)) {
+ dev_err(&client->dev,
+ "timeout waiting for initialisation\n");
+ break;
+ }
+
+ msleep(1);
+ }
+
+ lm8323_configure(lm);
+
+ /* If a true probe check the device */
+ if (lm8323_read_id(lm, data) != 0) {
+ dev_err(&client->dev, "device not found\n");
+ err = -ENODEV;
+ goto fail1;
+ }
+
+ for (pwm = 0; pwm < LM8323_NUM_PWMS; pwm++) {
+ err = init_pwm(lm, pwm + 1, &client->dev,
+ pdata->pwm_names[pwm]);
+ if (err < 0)
+ goto fail2;
+ }
+
+ lm->kp_enabled = true;
+ err = device_create_file(&client->dev, &dev_attr_disable_kp);
+ if (err < 0)
+ goto fail2;
+
+ idev->name = pdata->name ? : "LM8323 keypad";
+ snprintf(lm->phys, sizeof(lm->phys),
+ "%s/input-kp", dev_name(&client->dev));
+ idev->phys = lm->phys;
+
+ idev->evbit[0] = BIT(EV_KEY) | BIT(EV_MSC);
+ __set_bit(MSC_SCAN, idev->mscbit);
+ for (i = 0; i < LM8323_KEYMAP_SIZE; i++) {
+ __set_bit(pdata->keymap[i], idev->keybit);
+ lm->keymap[i] = pdata->keymap[i];
+ }
+ __clear_bit(KEY_RESERVED, idev->keybit);
+
+ if (pdata->repeat)
+ __set_bit(EV_REP, idev->evbit);
+
+ err = input_register_device(idev);
+ if (err) {
+ dev_dbg(&client->dev, "error registering input device\n");
+ goto fail3;
+ }
+
+ err = request_threaded_irq(client->irq, NULL, lm8323_irq,
+ IRQF_TRIGGER_LOW|IRQF_ONESHOT, "lm8323", lm);
+ if (err) {
+ dev_err(&client->dev, "could not get IRQ %d\n", client->irq);
+ goto fail4;
+ }
+
+ i2c_set_clientdata(client, lm);
+
+ device_init_wakeup(&client->dev, 1);
+ enable_irq_wake(client->irq);
+
+ return 0;
+
+fail4:
+ input_unregister_device(idev);
+ idev = NULL;
+fail3:
+ device_remove_file(&client->dev, &dev_attr_disable_kp);
+fail2:
+ while (--pwm >= 0)
+ if (lm->pwm[pwm].enabled) {
+ device_remove_file(lm->pwm[pwm].cdev.dev,
+ &dev_attr_time);
+ led_classdev_unregister(&lm->pwm[pwm].cdev);
+ }
+fail1:
+ input_free_device(idev);
+ kfree(lm);
+ return err;
+}
+
+static int __devexit lm8323_remove(struct i2c_client *client)
+{
+ struct lm8323_chip *lm = i2c_get_clientdata(client);
+ int i;
+
+ disable_irq_wake(client->irq);
+ free_irq(client->irq, lm);
+
+ input_unregister_device(lm->idev);
+
+ device_remove_file(&lm->client->dev, &dev_attr_disable_kp);
+
+ for (i = 0; i < 3; i++)
+ if (lm->pwm[i].enabled) {
+ device_remove_file(lm->pwm[i].cdev.dev, &dev_attr_time);
+ led_classdev_unregister(&lm->pwm[i].cdev);
+ }
+
+ kfree(lm);
+
+ return 0;
+}
+
+#ifdef CONFIG_PM_SLEEP
+/*
+ * We don't need to explicitly suspend the chip, as it already switches off
+ * when there's no activity.
+ */
+static int lm8323_suspend(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct lm8323_chip *lm = i2c_get_clientdata(client);
+ int i;
+
+ irq_set_irq_wake(client->irq, 0);
+ disable_irq(client->irq);
+
+ mutex_lock(&lm->lock);
+ lm->pm_suspend = true;
+ mutex_unlock(&lm->lock);
+
+ for (i = 0; i < 3; i++)
+ if (lm->pwm[i].enabled)
+ led_classdev_suspend(&lm->pwm[i].cdev);
+
+ return 0;
+}
+
+static int lm8323_resume(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct lm8323_chip *lm = i2c_get_clientdata(client);
+ int i;
+
+ mutex_lock(&lm->lock);
+ lm->pm_suspend = false;
+ mutex_unlock(&lm->lock);
+
+ for (i = 0; i < 3; i++)
+ if (lm->pwm[i].enabled)
+ led_classdev_resume(&lm->pwm[i].cdev);
+
+ enable_irq(client->irq);
+ irq_set_irq_wake(client->irq, 1);
+
+ return 0;
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(lm8323_pm_ops, lm8323_suspend, lm8323_resume);
+
+static const struct i2c_device_id lm8323_id[] = {
+ { "lm8323", 0 },
+ { }
+};
+
+static struct i2c_driver lm8323_i2c_driver = {
+ .driver = {
+ .name = "lm8323",
+ .pm = &lm8323_pm_ops,
+ },
+ .probe = lm8323_probe,
+ .remove = __devexit_p(lm8323_remove),
+ .id_table = lm8323_id,
+};
+MODULE_DEVICE_TABLE(i2c, lm8323_id);
+
+static int __init lm8323_init(void)
+{
+ return i2c_add_driver(&lm8323_i2c_driver);
+}
+module_init(lm8323_init);
+
+static void __exit lm8323_exit(void)
+{
+ i2c_del_driver(&lm8323_i2c_driver);
+}
+module_exit(lm8323_exit);
+
+MODULE_AUTHOR("Timo O. Karjalainen <timo.o.karjalainen@nokia.com>");
+MODULE_AUTHOR("Daniel Stone");
+MODULE_AUTHOR("Felipe Balbi <felipe.balbi@nokia.com>");
+MODULE_DESCRIPTION("LM8323 keypad driver");
+MODULE_LICENSE("GPL");
+
diff --git a/drivers/input/keyboard/locomokbd.c b/drivers/input/keyboard/locomokbd.c
new file mode 100644
index 0000000..b1ab298
--- /dev/null
+++ b/drivers/input/keyboard/locomokbd.c
@@ -0,0 +1,362 @@
+/*
+ * LoCoMo keyboard driver for Linux-based ARM PDAs:
+ * - SHARP Zaurus Collie (SL-5500)
+ * - SHARP Zaurus Poodle (SL-5600)
+ *
+ * Copyright (c) 2005 John Lenz
+ * Based on from xtkbd.c
+ *
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/input.h>
+#include <linux/delay.h>
+#include <linux/device.h>
+#include <linux/interrupt.h>
+#include <linux/ioport.h>
+
+#include <asm/hardware/locomo.h>
+#include <asm/irq.h>
+
+MODULE_AUTHOR("John Lenz <lenz@cs.wisc.edu>");
+MODULE_DESCRIPTION("LoCoMo keyboard driver");
+MODULE_LICENSE("GPL");
+
+#define LOCOMOKBD_NUMKEYS 128
+
+#define KEY_ACTIVITY KEY_F16
+#define KEY_CONTACT KEY_F18
+#define KEY_CENTER KEY_F15
+
+static const unsigned char
+locomokbd_keycode[LOCOMOKBD_NUMKEYS] __devinitconst = {
+ 0, KEY_ESC, KEY_ACTIVITY, 0, 0, 0, 0, 0, 0, 0, /* 0 - 9 */
+ 0, 0, 0, 0, 0, 0, 0, KEY_MENU, KEY_HOME, KEY_CONTACT, /* 10 - 19 */
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 20 - 29 */
+ 0, 0, 0, KEY_CENTER, 0, KEY_MAIL, 0, 0, 0, 0, /* 30 - 39 */
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, KEY_RIGHT, /* 40 - 49 */
+ KEY_UP, KEY_LEFT, 0, 0, KEY_P, 0, KEY_O, KEY_I, KEY_Y, KEY_T, /* 50 - 59 */
+ KEY_E, KEY_W, 0, 0, 0, 0, KEY_DOWN, KEY_ENTER, 0, 0, /* 60 - 69 */
+ KEY_BACKSPACE, 0, KEY_L, KEY_U, KEY_H, KEY_R, KEY_D, KEY_Q, 0, 0, /* 70 - 79 */
+ 0, 0, 0, 0, 0, 0, KEY_ENTER, KEY_RIGHTSHIFT, KEY_K, KEY_J, /* 80 - 89 */
+ KEY_G, KEY_F, KEY_X, KEY_S, 0, 0, 0, 0, 0, 0, /* 90 - 99 */
+ 0, 0, KEY_DOT, 0, KEY_COMMA, KEY_N, KEY_B, KEY_C, KEY_Z, KEY_A, /* 100 - 109 */
+ KEY_LEFTSHIFT, KEY_TAB, KEY_LEFTCTRL, 0, 0, 0, 0, 0, 0, 0, /* 110 - 119 */
+ KEY_M, KEY_SPACE, KEY_V, KEY_APOSTROPHE, KEY_SLASH, 0, 0, 0 /* 120 - 128 */
+};
+
+#define KB_ROWS 16
+#define KB_COLS 8
+#define KB_ROWMASK(r) (1 << (r))
+#define SCANCODE(c,r) ( ((c)<<4) + (r) + 1 )
+
+#define KB_DELAY 8
+#define SCAN_INTERVAL (HZ/10)
+
+struct locomokbd {
+ unsigned char keycode[LOCOMOKBD_NUMKEYS];
+ struct input_dev *input;
+ char phys[32];
+
+ unsigned long base;
+ spinlock_t lock;
+
+ struct timer_list timer;
+ unsigned long suspend_jiffies;
+ unsigned int count_cancel;
+};
+
+/* helper functions for reading the keyboard matrix */
+static inline void locomokbd_charge_all(unsigned long membase)
+{
+ locomo_writel(0x00FF, membase + LOCOMO_KSC);
+}
+
+static inline void locomokbd_activate_all(unsigned long membase)
+{
+ unsigned long r;
+
+ locomo_writel(0, membase + LOCOMO_KSC);
+ r = locomo_readl(membase + LOCOMO_KIC);
+ r &= 0xFEFF;
+ locomo_writel(r, membase + LOCOMO_KIC);
+}
+
+static inline void locomokbd_activate_col(unsigned long membase, int col)
+{
+ unsigned short nset;
+ unsigned short nbset;
+
+ nset = 0xFF & ~(1 << col);
+ nbset = (nset << 8) + nset;
+ locomo_writel(nbset, membase + LOCOMO_KSC);
+}
+
+static inline void locomokbd_reset_col(unsigned long membase, int col)
+{
+ unsigned short nbset;
+
+ nbset = ((0xFF & ~(1 << col)) << 8) + 0xFF;
+ locomo_writel(nbset, membase + LOCOMO_KSC);
+}
+
+/*
+ * The LoCoMo keyboard only generates interrupts when a key is pressed.
+ * So when a key is pressed, we enable a timer. This timer scans the
+ * keyboard, and this is how we detect when the key is released.
+ */
+
+/* Scan the hardware keyboard and push any changes up through the input layer */
+static void locomokbd_scankeyboard(struct locomokbd *locomokbd)
+{
+ unsigned int row, col, rowd;
+ unsigned long flags;
+ unsigned int num_pressed;
+ unsigned long membase = locomokbd->base;
+
+ spin_lock_irqsave(&locomokbd->lock, flags);
+
+ locomokbd_charge_all(membase);
+
+ num_pressed = 0;
+ for (col = 0; col < KB_COLS; col++) {
+
+ locomokbd_activate_col(membase, col);
+ udelay(KB_DELAY);
+
+ rowd = ~locomo_readl(membase + LOCOMO_KIB);
+ for (row = 0; row < KB_ROWS; row++) {
+ unsigned int scancode, pressed, key;
+
+ scancode = SCANCODE(col, row);
+ pressed = rowd & KB_ROWMASK(row);
+ key = locomokbd->keycode[scancode];
+
+ input_report_key(locomokbd->input, key, pressed);
+ if (likely(!pressed))
+ continue;
+
+ num_pressed++;
+
+ /* The "Cancel/ESC" key is labeled "On/Off" on
+ * Collie and Poodle and should suspend the device
+ * if it was pressed for more than a second. */
+ if (unlikely(key == KEY_ESC)) {
+ if (!time_after(jiffies,
+ locomokbd->suspend_jiffies + HZ))
+ continue;
+ if (locomokbd->count_cancel++
+ != (HZ/SCAN_INTERVAL + 1))
+ continue;
+ input_event(locomokbd->input, EV_PWR,
+ KEY_SUSPEND, 1);
+ locomokbd->suspend_jiffies = jiffies;
+ } else
+ locomokbd->count_cancel = 0;
+ }
+ locomokbd_reset_col(membase, col);
+ }
+ locomokbd_activate_all(membase);
+
+ input_sync(locomokbd->input);
+
+ /* if any keys are pressed, enable the timer */
+ if (num_pressed)
+ mod_timer(&locomokbd->timer, jiffies + SCAN_INTERVAL);
+ else
+ locomokbd->count_cancel = 0;
+
+ spin_unlock_irqrestore(&locomokbd->lock, flags);
+}
+
+/*
+ * LoCoMo keyboard interrupt handler.
+ */
+static irqreturn_t locomokbd_interrupt(int irq, void *dev_id)
+{
+ struct locomokbd *locomokbd = dev_id;
+ u16 r;
+
+ r = locomo_readl(locomokbd->base + LOCOMO_KIC);
+ if ((r & 0x0001) == 0)
+ return IRQ_HANDLED;
+
+ locomo_writel(r & ~0x0100, locomokbd->base + LOCOMO_KIC); /* Ack */
+
+ /** wait chattering delay **/
+ udelay(100);
+
+ locomokbd_scankeyboard(locomokbd);
+ return IRQ_HANDLED;
+}
+
+/*
+ * LoCoMo timer checking for released keys
+ */
+static void locomokbd_timer_callback(unsigned long data)
+{
+ struct locomokbd *locomokbd = (struct locomokbd *) data;
+
+ locomokbd_scankeyboard(locomokbd);
+}
+
+static int locomokbd_open(struct input_dev *dev)
+{
+ struct locomokbd *locomokbd = input_get_drvdata(dev);
+ u16 r;
+
+ r = locomo_readl(locomokbd->base + LOCOMO_KIC) | 0x0010;
+ locomo_writel(r, locomokbd->base + LOCOMO_KIC);
+ return 0;
+}
+
+static void locomokbd_close(struct input_dev *dev)
+{
+ struct locomokbd *locomokbd = input_get_drvdata(dev);
+ u16 r;
+
+ r = locomo_readl(locomokbd->base + LOCOMO_KIC) & ~0x0010;
+ locomo_writel(r, locomokbd->base + LOCOMO_KIC);
+}
+
+static int __devinit locomokbd_probe(struct locomo_dev *dev)
+{
+ struct locomokbd *locomokbd;
+ struct input_dev *input_dev;
+ int i, err;
+
+ locomokbd = kzalloc(sizeof(struct locomokbd), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!locomokbd || !input_dev) {
+ err = -ENOMEM;
+ goto err_free_mem;
+ }
+
+ /* try and claim memory region */
+ if (!request_mem_region((unsigned long) dev->mapbase,
+ dev->length,
+ LOCOMO_DRIVER_NAME(dev))) {
+ err = -EBUSY;
+ printk(KERN_ERR "locomokbd: Can't acquire access to io memory for keyboard\n");
+ goto err_free_mem;
+ }
+
+ locomo_set_drvdata(dev, locomokbd);
+
+ locomokbd->base = (unsigned long) dev->mapbase;
+
+ spin_lock_init(&locomokbd->lock);
+
+ init_timer(&locomokbd->timer);
+ locomokbd->timer.function = locomokbd_timer_callback;
+ locomokbd->timer.data = (unsigned long) locomokbd;
+
+ locomokbd->suspend_jiffies = jiffies;
+
+ locomokbd->input = input_dev;
+ strcpy(locomokbd->phys, "locomokbd/input0");
+
+ input_dev->name = "LoCoMo keyboard";
+ input_dev->phys = locomokbd->phys;
+ input_dev->id.bustype = BUS_HOST;
+ input_dev->id.vendor = 0x0001;
+ input_dev->id.product = 0x0001;
+ input_dev->id.version = 0x0100;
+ input_dev->open = locomokbd_open;
+ input_dev->close = locomokbd_close;
+ input_dev->dev.parent = &dev->dev;
+
+ input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP) |
+ BIT_MASK(EV_PWR);
+ input_dev->keycode = locomokbd->keycode;
+ input_dev->keycodesize = sizeof(locomokbd_keycode[0]);
+ input_dev->keycodemax = ARRAY_SIZE(locomokbd_keycode);
+
+ input_set_drvdata(input_dev, locomokbd);
+
+ memcpy(locomokbd->keycode, locomokbd_keycode, sizeof(locomokbd->keycode));
+ for (i = 0; i < LOCOMOKBD_NUMKEYS; i++)
+ set_bit(locomokbd->keycode[i], input_dev->keybit);
+ clear_bit(0, input_dev->keybit);
+
+ /* attempt to get the interrupt */
+ err = request_irq(dev->irq[0], locomokbd_interrupt, 0, "locomokbd", locomokbd);
+ if (err) {
+ printk(KERN_ERR "locomokbd: Can't get irq for keyboard\n");
+ goto err_release_region;
+ }
+
+ err = input_register_device(locomokbd->input);
+ if (err)
+ goto err_free_irq;
+
+ return 0;
+
+ err_free_irq:
+ free_irq(dev->irq[0], locomokbd);
+ err_release_region:
+ release_mem_region((unsigned long) dev->mapbase, dev->length);
+ locomo_set_drvdata(dev, NULL);
+ err_free_mem:
+ input_free_device(input_dev);
+ kfree(locomokbd);
+
+ return err;
+}
+
+static int __devexit locomokbd_remove(struct locomo_dev *dev)
+{
+ struct locomokbd *locomokbd = locomo_get_drvdata(dev);
+
+ free_irq(dev->irq[0], locomokbd);
+
+ del_timer_sync(&locomokbd->timer);
+
+ input_unregister_device(locomokbd->input);
+ locomo_set_drvdata(dev, NULL);
+
+ release_mem_region((unsigned long) dev->mapbase, dev->length);
+
+ kfree(locomokbd);
+
+ return 0;
+}
+
+static struct locomo_driver keyboard_driver = {
+ .drv = {
+ .name = "locomokbd"
+ },
+ .devid = LOCOMO_DEVID_KEYBOARD,
+ .probe = locomokbd_probe,
+ .remove = __devexit_p(locomokbd_remove),
+};
+
+static int __init locomokbd_init(void)
+{
+ return locomo_driver_register(&keyboard_driver);
+}
+
+static void __exit locomokbd_exit(void)
+{
+ locomo_driver_unregister(&keyboard_driver);
+}
+
+module_init(locomokbd_init);
+module_exit(locomokbd_exit);
diff --git a/drivers/input/keyboard/maple_keyb.c b/drivers/input/keyboard/maple_keyb.c
new file mode 100644
index 0000000..5aa2361
--- /dev/null
+++ b/drivers/input/keyboard/maple_keyb.c
@@ -0,0 +1,260 @@
+/*
+ * SEGA Dreamcast keyboard driver
+ * Based on drivers/usb/usbkbd.c
+ * Copyright (c) YAEGASHI Takeshi, 2001
+ * Porting to 2.6 Copyright (c) Adrian McMenamin, 2007 - 2009
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see the file COPYING, or write
+ * to the Free Software Foundation, Inc.,
+ * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/input.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/timer.h>
+#include <linux/maple.h>
+
+/* Very simple mutex to ensure proper cleanup */
+static DEFINE_MUTEX(maple_keyb_mutex);
+
+#define NR_SCANCODES 256
+
+MODULE_AUTHOR("Adrian McMenamin <adrian@mcmen.demon.co.uk");
+MODULE_DESCRIPTION("SEGA Dreamcast keyboard driver");
+MODULE_LICENSE("GPL");
+
+struct dc_kbd {
+ struct input_dev *dev;
+ unsigned short keycode[NR_SCANCODES];
+ unsigned char new[8];
+ unsigned char old[8];
+};
+
+static const unsigned short dc_kbd_keycode[NR_SCANCODES] = {
+ KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_A, KEY_B,
+ KEY_C, KEY_D, KEY_E, KEY_F, KEY_G, KEY_H, KEY_I, KEY_J, KEY_K, KEY_L,
+ KEY_M, KEY_N, KEY_O, KEY_P, KEY_Q, KEY_R, KEY_S, KEY_T, KEY_U, KEY_V,
+ KEY_W, KEY_X, KEY_Y, KEY_Z, KEY_1, KEY_2, KEY_3, KEY_4, KEY_5, KEY_6,
+ KEY_7, KEY_8, KEY_9, KEY_0, KEY_ENTER, KEY_ESC, KEY_BACKSPACE,
+ KEY_TAB, KEY_SPACE, KEY_MINUS, KEY_EQUAL, KEY_LEFTBRACE,
+ KEY_RIGHTBRACE, KEY_BACKSLASH, KEY_BACKSLASH, KEY_SEMICOLON,
+ KEY_APOSTROPHE, KEY_GRAVE, KEY_COMMA, KEY_DOT, KEY_SLASH,
+ KEY_CAPSLOCK, KEY_F1, KEY_F2, KEY_F3, KEY_F4, KEY_F5, KEY_F6,
+ KEY_F7, KEY_F8, KEY_F9, KEY_F10, KEY_F11, KEY_F12, KEY_SYSRQ,
+ KEY_SCROLLLOCK, KEY_PAUSE, KEY_INSERT, KEY_HOME, KEY_PAGEUP,
+ KEY_DELETE, KEY_END, KEY_PAGEDOWN, KEY_RIGHT, KEY_LEFT, KEY_DOWN,
+ KEY_UP, KEY_NUMLOCK, KEY_KPSLASH, KEY_KPASTERISK, KEY_KPMINUS,
+ KEY_KPPLUS, KEY_KPENTER, KEY_KP1, KEY_KP2, KEY_KP3, KEY_KP4, KEY_KP5,
+ KEY_KP6, KEY_KP7, KEY_KP8, KEY_KP9, KEY_KP0, KEY_KPDOT, KEY_102ND,
+ KEY_COMPOSE, KEY_POWER, KEY_KPEQUAL, KEY_F13, KEY_F14, KEY_F15,
+ KEY_F16, KEY_F17, KEY_F18, KEY_F19, KEY_F20, KEY_F21, KEY_F22,
+ KEY_F23, KEY_F24, KEY_OPEN, KEY_HELP, KEY_PROPS, KEY_FRONT, KEY_STOP,
+ KEY_AGAIN, KEY_UNDO, KEY_CUT, KEY_COPY, KEY_PASTE, KEY_FIND, KEY_MUTE,
+ KEY_VOLUMEUP, KEY_VOLUMEDOWN, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+ KEY_KPCOMMA, KEY_RESERVED, KEY_RO, KEY_KATAKANAHIRAGANA , KEY_YEN,
+ KEY_HENKAN, KEY_MUHENKAN, KEY_KPJPCOMMA, KEY_RESERVED, KEY_RESERVED,
+ KEY_RESERVED, KEY_HANGEUL, KEY_HANJA, KEY_KATAKANA, KEY_HIRAGANA,
+ KEY_ZENKAKUHANKAKU, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+ KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+ KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+ KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+ KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+ KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+ KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+ KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+ KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+ KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+ KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+ KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+ KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+ KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+ KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+ KEY_RESERVED, KEY_RESERVED, KEY_LEFTCTRL, KEY_LEFTSHIFT, KEY_LEFTALT,
+ KEY_LEFTMETA, KEY_RIGHTCTRL, KEY_RIGHTSHIFT, KEY_RIGHTALT,
+ KEY_RIGHTMETA, KEY_PLAYPAUSE, KEY_STOPCD, KEY_PREVIOUSSONG,
+ KEY_NEXTSONG, KEY_EJECTCD, KEY_VOLUMEUP, KEY_VOLUMEDOWN, KEY_MUTE,
+ KEY_WWW, KEY_BACK, KEY_FORWARD, KEY_STOP, KEY_FIND, KEY_SCROLLUP,
+ KEY_SCROLLDOWN, KEY_EDIT, KEY_SLEEP, KEY_SCREENLOCK, KEY_REFRESH,
+ KEY_CALC, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED
+};
+
+static void dc_scan_kbd(struct dc_kbd *kbd)
+{
+ struct input_dev *dev = kbd->dev;
+ void *ptr;
+ int code, keycode;
+ int i;
+
+ for (i = 0; i < 8; i++) {
+ code = i + 224;
+ keycode = kbd->keycode[code];
+ input_event(dev, EV_MSC, MSC_SCAN, code);
+ input_report_key(dev, keycode, (kbd->new[0] >> i) & 1);
+ }
+
+ for (i = 2; i < 8; i++) {
+ ptr = memchr(kbd->new + 2, kbd->old[i], 6);
+ code = kbd->old[i];
+ if (code > 3 && ptr == NULL) {
+ keycode = kbd->keycode[code];
+ if (keycode) {
+ input_event(dev, EV_MSC, MSC_SCAN, code);
+ input_report_key(dev, keycode, 0);
+ } else
+ dev_dbg(&dev->dev,
+ "Unknown key (scancode %#x) released.",
+ code);
+ }
+ ptr = memchr(kbd->old + 2, kbd->new[i], 6);
+ code = kbd->new[i];
+ if (code > 3 && ptr) {
+ keycode = kbd->keycode[code];
+ if (keycode) {
+ input_event(dev, EV_MSC, MSC_SCAN, code);
+ input_report_key(dev, keycode, 1);
+ } else
+ dev_dbg(&dev->dev,
+ "Unknown key (scancode %#x) pressed.",
+ code);
+ }
+ }
+ input_sync(dev);
+ memcpy(kbd->old, kbd->new, 8);
+}
+
+static void dc_kbd_callback(struct mapleq *mq)
+{
+ struct maple_device *mapledev = mq->dev;
+ struct dc_kbd *kbd = maple_get_drvdata(mapledev);
+ unsigned long *buf = (unsigned long *)(mq->recvbuf->buf);
+
+ /*
+ * We should always get the lock because the only
+ * time it may be locked is if the driver is in the cleanup phase.
+ */
+ if (likely(mutex_trylock(&maple_keyb_mutex))) {
+
+ if (buf[1] == mapledev->function) {
+ memcpy(kbd->new, buf + 2, 8);
+ dc_scan_kbd(kbd);
+ }
+
+ mutex_unlock(&maple_keyb_mutex);
+ }
+}
+
+static int probe_maple_kbd(struct device *dev)
+{
+ struct maple_device *mdev;
+ struct maple_driver *mdrv;
+ int i, error;
+ struct dc_kbd *kbd;
+ struct input_dev *idev;
+
+ mdev = to_maple_dev(dev);
+ mdrv = to_maple_driver(dev->driver);
+
+ kbd = kzalloc(sizeof(struct dc_kbd), GFP_KERNEL);
+ if (!kbd) {
+ error = -ENOMEM;
+ goto fail;
+ }
+
+ idev = input_allocate_device();
+ if (!idev) {
+ error = -ENOMEM;
+ goto fail_idev_alloc;
+ }
+
+ kbd->dev = idev;
+ memcpy(kbd->keycode, dc_kbd_keycode, sizeof(kbd->keycode));
+
+ idev->name = mdev->product_name;
+ idev->evbit[0] = BIT(EV_KEY) | BIT(EV_REP);
+ idev->keycode = kbd->keycode;
+ idev->keycodesize = sizeof(unsigned short);
+ idev->keycodemax = ARRAY_SIZE(kbd->keycode);
+ idev->id.bustype = BUS_HOST;
+ idev->dev.parent = &mdev->dev;
+
+ for (i = 0; i < NR_SCANCODES; i++)
+ __set_bit(dc_kbd_keycode[i], idev->keybit);
+ __clear_bit(KEY_RESERVED, idev->keybit);
+
+ input_set_capability(idev, EV_MSC, MSC_SCAN);
+ input_set_drvdata(idev, kbd);
+
+ error = input_register_device(idev);
+ if (error)
+ goto fail_register;
+
+ /* Maple polling is locked to VBLANK - which may be just 50/s */
+ maple_getcond_callback(mdev, dc_kbd_callback, HZ/50,
+ MAPLE_FUNC_KEYBOARD);
+
+ mdev->driver = mdrv;
+
+ maple_set_drvdata(mdev, kbd);
+
+ return error;
+
+fail_register:
+ maple_set_drvdata(mdev, NULL);
+ input_free_device(idev);
+fail_idev_alloc:
+ kfree(kbd);
+fail:
+ return error;
+}
+
+static int remove_maple_kbd(struct device *dev)
+{
+ struct maple_device *mdev = to_maple_dev(dev);
+ struct dc_kbd *kbd = maple_get_drvdata(mdev);
+
+ mutex_lock(&maple_keyb_mutex);
+
+ input_unregister_device(kbd->dev);
+ kfree(kbd);
+
+ maple_set_drvdata(mdev, NULL);
+
+ mutex_unlock(&maple_keyb_mutex);
+ return 0;
+}
+
+static struct maple_driver dc_kbd_driver = {
+ .function = MAPLE_FUNC_KEYBOARD,
+ .drv = {
+ .name = "Dreamcast_keyboard",
+ .probe = probe_maple_kbd,
+ .remove = remove_maple_kbd,
+ },
+};
+
+static int __init dc_kbd_init(void)
+{
+ return maple_driver_register(&dc_kbd_driver);
+}
+
+static void __exit dc_kbd_exit(void)
+{
+ maple_driver_unregister(&dc_kbd_driver);
+}
+
+module_init(dc_kbd_init);
+module_exit(dc_kbd_exit);
diff --git a/drivers/input/keyboard/matrix_keypad.c b/drivers/input/keyboard/matrix_keypad.c
new file mode 100644
index 0000000..e2ae657
--- /dev/null
+++ b/drivers/input/keyboard/matrix_keypad.c
@@ -0,0 +1,516 @@
+/*
+ * GPIO driven matrix keyboard driver
+ *
+ * Copyright (c) 2008 Marek Vasut <marek.vasut@gmail.com>
+ *
+ * Based on corgikbd.c
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#include <linux/types.h>
+#include <linux/delay.h>
+#include <linux/platform_device.h>
+#include <linux/init.h>
+#include <linux/input.h>
+#include <linux/irq.h>
+#include <linux/interrupt.h>
+#include <linux/jiffies.h>
+#include <linux/module.h>
+#include <linux/gpio.h>
+#include <linux/input/matrix_keypad.h>
+#include <linux/slab.h>
+
+struct matrix_keypad {
+ const struct matrix_keypad_platform_data *pdata;
+ struct input_dev *input_dev;
+ unsigned short *keycodes;
+ unsigned int row_shift;
+
+ DECLARE_BITMAP(disabled_gpios, MATRIX_MAX_ROWS);
+
+ uint32_t last_key_state[MATRIX_MAX_COLS];
+ struct delayed_work work;
+ spinlock_t lock;
+ bool scan_pending;
+ bool stopped;
+ bool gpio_all_disabled;
+};
+
+/*
+ * NOTE: normally the GPIO has to be put into HiZ when de-activated to cause
+ * minmal side effect when scanning other columns, here it is configured to
+ * be input, and it should work on most platforms.
+ */
+static void __activate_col(const struct matrix_keypad_platform_data *pdata,
+ int col, bool on)
+{
+ bool level_on = !pdata->active_low;
+
+ if (on) {
+ gpio_direction_output(pdata->col_gpios[col], level_on);
+ } else {
+ gpio_set_value_cansleep(pdata->col_gpios[col], !level_on);
+ gpio_direction_input(pdata->col_gpios[col]);
+ }
+}
+
+static void activate_col(const struct matrix_keypad_platform_data *pdata,
+ int col, bool on)
+{
+ __activate_col(pdata, col, on);
+
+ if (on && pdata->col_scan_delay_us)
+ udelay(pdata->col_scan_delay_us);
+}
+
+static void activate_all_cols(const struct matrix_keypad_platform_data *pdata,
+ bool on)
+{
+ int col;
+
+ for (col = 0; col < pdata->num_col_gpios; col++)
+ __activate_col(pdata, col, on);
+}
+
+static bool row_asserted(const struct matrix_keypad_platform_data *pdata,
+ int row)
+{
+ return gpio_get_value_cansleep(pdata->row_gpios[row]) ?
+ !pdata->active_low : pdata->active_low;
+}
+
+static void enable_row_irqs(struct matrix_keypad *keypad)
+{
+ const struct matrix_keypad_platform_data *pdata = keypad->pdata;
+ int i;
+
+ if (pdata->clustered_irq > 0)
+ enable_irq(pdata->clustered_irq);
+ else {
+ for (i = 0; i < pdata->num_row_gpios; i++)
+ enable_irq(gpio_to_irq(pdata->row_gpios[i]));
+ }
+}
+
+static void disable_row_irqs(struct matrix_keypad *keypad)
+{
+ const struct matrix_keypad_platform_data *pdata = keypad->pdata;
+ int i;
+
+ if (pdata->clustered_irq > 0)
+ disable_irq_nosync(pdata->clustered_irq);
+ else {
+ for (i = 0; i < pdata->num_row_gpios; i++)
+ disable_irq_nosync(gpio_to_irq(pdata->row_gpios[i]));
+ }
+}
+
+/*
+ * This gets the keys from keyboard and reports it to input subsystem
+ */
+static void matrix_keypad_scan(struct work_struct *work)
+{
+ struct matrix_keypad *keypad =
+ container_of(work, struct matrix_keypad, work.work);
+ struct input_dev *input_dev = keypad->input_dev;
+ const struct matrix_keypad_platform_data *pdata = keypad->pdata;
+ uint32_t new_state[MATRIX_MAX_COLS];
+ int row, col, code;
+
+ /* de-activate all columns for scanning */
+ activate_all_cols(pdata, false);
+
+ memset(new_state, 0, sizeof(new_state));
+
+ /* assert each column and read the row status out */
+ for (col = 0; col < pdata->num_col_gpios; col++) {
+
+ activate_col(pdata, col, true);
+
+ for (row = 0; row < pdata->num_row_gpios; row++)
+ new_state[col] |=
+ row_asserted(pdata, row) ? (1 << row) : 0;
+
+ activate_col(pdata, col, false);
+ }
+
+ for (col = 0; col < pdata->num_col_gpios; col++) {
+ uint32_t bits_changed;
+
+ bits_changed = keypad->last_key_state[col] ^ new_state[col];
+ if (bits_changed == 0)
+ continue;
+
+ for (row = 0; row < pdata->num_row_gpios; row++) {
+ if ((bits_changed & (1 << row)) == 0)
+ continue;
+
+ code = MATRIX_SCAN_CODE(row, col, keypad->row_shift);
+ input_event(input_dev, EV_MSC, MSC_SCAN, code);
+ input_report_key(input_dev,
+ keypad->keycodes[code],
+ new_state[col] & (1 << row));
+ }
+ }
+ input_sync(input_dev);
+
+ memcpy(keypad->last_key_state, new_state, sizeof(new_state));
+
+ activate_all_cols(pdata, true);
+
+ /* Enable IRQs again */
+ spin_lock_irq(&keypad->lock);
+ keypad->scan_pending = false;
+ enable_row_irqs(keypad);
+ spin_unlock_irq(&keypad->lock);
+}
+
+static irqreturn_t matrix_keypad_interrupt(int irq, void *id)
+{
+ struct matrix_keypad *keypad = id;
+ unsigned long flags;
+
+ spin_lock_irqsave(&keypad->lock, flags);
+
+ /*
+ * See if another IRQ beaten us to it and scheduled the
+ * scan already. In that case we should not try to
+ * disable IRQs again.
+ */
+ if (unlikely(keypad->scan_pending || keypad->stopped))
+ goto out;
+
+ disable_row_irqs(keypad);
+ keypad->scan_pending = true;
+ schedule_delayed_work(&keypad->work,
+ msecs_to_jiffies(keypad->pdata->debounce_ms));
+
+out:
+ spin_unlock_irqrestore(&keypad->lock, flags);
+ return IRQ_HANDLED;
+}
+
+static int matrix_keypad_start(struct input_dev *dev)
+{
+ struct matrix_keypad *keypad = input_get_drvdata(dev);
+
+ keypad->stopped = false;
+ mb();
+
+ /*
+ * Schedule an immediate key scan to capture current key state;
+ * columns will be activated and IRQs be enabled after the scan.
+ */
+ schedule_delayed_work(&keypad->work, 0);
+
+ return 0;
+}
+
+static void matrix_keypad_stop(struct input_dev *dev)
+{
+ struct matrix_keypad *keypad = input_get_drvdata(dev);
+
+ keypad->stopped = true;
+ mb();
+ flush_work(&keypad->work.work);
+ /*
+ * matrix_keypad_scan() will leave IRQs enabled;
+ * we should disable them now.
+ */
+ disable_row_irqs(keypad);
+}
+
+#ifdef CONFIG_PM
+static void matrix_keypad_enable_wakeup(struct matrix_keypad *keypad)
+{
+ const struct matrix_keypad_platform_data *pdata = keypad->pdata;
+ unsigned int gpio;
+ int i;
+
+ if (pdata->clustered_irq > 0) {
+ if (enable_irq_wake(pdata->clustered_irq) == 0)
+ keypad->gpio_all_disabled = true;
+ } else {
+
+ for (i = 0; i < pdata->num_row_gpios; i++) {
+ if (!test_bit(i, keypad->disabled_gpios)) {
+ gpio = pdata->row_gpios[i];
+
+ if (enable_irq_wake(gpio_to_irq(gpio)) == 0)
+ __set_bit(i, keypad->disabled_gpios);
+ }
+ }
+ }
+}
+
+static void matrix_keypad_disable_wakeup(struct matrix_keypad *keypad)
+{
+ const struct matrix_keypad_platform_data *pdata = keypad->pdata;
+ unsigned int gpio;
+ int i;
+
+ if (pdata->clustered_irq > 0) {
+ if (keypad->gpio_all_disabled) {
+ disable_irq_wake(pdata->clustered_irq);
+ keypad->gpio_all_disabled = false;
+ }
+ } else {
+ for (i = 0; i < pdata->num_row_gpios; i++) {
+ if (test_and_clear_bit(i, keypad->disabled_gpios)) {
+ gpio = pdata->row_gpios[i];
+ disable_irq_wake(gpio_to_irq(gpio));
+ }
+ }
+ }
+}
+
+static int matrix_keypad_suspend(struct device *dev)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ struct matrix_keypad *keypad = platform_get_drvdata(pdev);
+
+ matrix_keypad_stop(keypad->input_dev);
+
+ if (device_may_wakeup(&pdev->dev))
+ matrix_keypad_enable_wakeup(keypad);
+
+ return 0;
+}
+
+static int matrix_keypad_resume(struct device *dev)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ struct matrix_keypad *keypad = platform_get_drvdata(pdev);
+
+ if (device_may_wakeup(&pdev->dev))
+ matrix_keypad_disable_wakeup(keypad);
+
+ matrix_keypad_start(keypad->input_dev);
+
+ return 0;
+}
+
+static const SIMPLE_DEV_PM_OPS(matrix_keypad_pm_ops,
+ matrix_keypad_suspend, matrix_keypad_resume);
+#endif
+
+static int __devinit init_matrix_gpio(struct platform_device *pdev,
+ struct matrix_keypad *keypad)
+{
+ const struct matrix_keypad_platform_data *pdata = keypad->pdata;
+ int i, err = -EINVAL;
+
+ /* initialized strobe lines as outputs, activated */
+ for (i = 0; i < pdata->num_col_gpios; i++) {
+ err = gpio_request(pdata->col_gpios[i], "matrix_kbd_col");
+ if (err) {
+ dev_err(&pdev->dev,
+ "failed to request GPIO%d for COL%d\n",
+ pdata->col_gpios[i], i);
+ goto err_free_cols;
+ }
+
+ gpio_direction_output(pdata->col_gpios[i], !pdata->active_low);
+ }
+
+ for (i = 0; i < pdata->num_row_gpios; i++) {
+ err = gpio_request(pdata->row_gpios[i], "matrix_kbd_row");
+ if (err) {
+ dev_err(&pdev->dev,
+ "failed to request GPIO%d for ROW%d\n",
+ pdata->row_gpios[i], i);
+ goto err_free_rows;
+ }
+
+ gpio_direction_input(pdata->row_gpios[i]);
+ }
+
+ if (pdata->clustered_irq > 0) {
+ err = request_irq(pdata->clustered_irq,
+ matrix_keypad_interrupt,
+ pdata->clustered_irq_flags,
+ "matrix-keypad", keypad);
+ if (err) {
+ dev_err(&pdev->dev,
+ "Unable to acquire clustered interrupt\n");
+ goto err_free_rows;
+ }
+ } else {
+ for (i = 0; i < pdata->num_row_gpios; i++) {
+ err = request_irq(gpio_to_irq(pdata->row_gpios[i]),
+ matrix_keypad_interrupt,
+ IRQF_TRIGGER_RISING |
+ IRQF_TRIGGER_FALLING,
+ "matrix-keypad", keypad);
+ if (err) {
+ dev_err(&pdev->dev,
+ "Unable to acquire interrupt "
+ "for GPIO line %i\n",
+ pdata->row_gpios[i]);
+ goto err_free_irqs;
+ }
+ }
+ }
+
+ /* initialized as disabled - enabled by input->open */
+ disable_row_irqs(keypad);
+ return 0;
+
+err_free_irqs:
+ while (--i >= 0)
+ free_irq(gpio_to_irq(pdata->row_gpios[i]), keypad);
+ i = pdata->num_row_gpios;
+err_free_rows:
+ while (--i >= 0)
+ gpio_free(pdata->row_gpios[i]);
+ i = pdata->num_col_gpios;
+err_free_cols:
+ while (--i >= 0)
+ gpio_free(pdata->col_gpios[i]);
+
+ return err;
+}
+
+static int __devinit matrix_keypad_probe(struct platform_device *pdev)
+{
+ const struct matrix_keypad_platform_data *pdata;
+ const struct matrix_keymap_data *keymap_data;
+ struct matrix_keypad *keypad;
+ struct input_dev *input_dev;
+ unsigned short *keycodes;
+ unsigned int row_shift;
+ int err;
+
+ pdata = pdev->dev.platform_data;
+ if (!pdata) {
+ dev_err(&pdev->dev, "no platform data defined\n");
+ return -EINVAL;
+ }
+
+ keymap_data = pdata->keymap_data;
+ if (!keymap_data) {
+ dev_err(&pdev->dev, "no keymap data defined\n");
+ return -EINVAL;
+ }
+
+ row_shift = get_count_order(pdata->num_col_gpios);
+
+ keypad = kzalloc(sizeof(struct matrix_keypad), GFP_KERNEL);
+ keycodes = kzalloc((pdata->num_row_gpios << row_shift) *
+ sizeof(*keycodes),
+ GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!keypad || !keycodes || !input_dev) {
+ err = -ENOMEM;
+ goto err_free_mem;
+ }
+
+ keypad->input_dev = input_dev;
+ keypad->pdata = pdata;
+ keypad->keycodes = keycodes;
+ keypad->row_shift = row_shift;
+ keypad->stopped = true;
+ INIT_DELAYED_WORK(&keypad->work, matrix_keypad_scan);
+ spin_lock_init(&keypad->lock);
+
+ input_dev->name = pdev->name;
+ input_dev->id.bustype = BUS_HOST;
+ input_dev->dev.parent = &pdev->dev;
+ input_dev->evbit[0] = BIT_MASK(EV_KEY);
+ if (!pdata->no_autorepeat)
+ input_dev->evbit[0] |= BIT_MASK(EV_REP);
+ input_dev->open = matrix_keypad_start;
+ input_dev->close = matrix_keypad_stop;
+
+ input_dev->keycode = keycodes;
+ input_dev->keycodesize = sizeof(*keycodes);
+ input_dev->keycodemax = pdata->num_row_gpios << row_shift;
+
+ matrix_keypad_build_keymap(keymap_data, row_shift,
+ input_dev->keycode, input_dev->keybit);
+
+ input_set_capability(input_dev, EV_MSC, MSC_SCAN);
+ input_set_drvdata(input_dev, keypad);
+
+ err = init_matrix_gpio(pdev, keypad);
+ if (err)
+ goto err_free_mem;
+
+ err = input_register_device(keypad->input_dev);
+ if (err)
+ goto err_free_mem;
+
+ device_init_wakeup(&pdev->dev, pdata->wakeup);
+ platform_set_drvdata(pdev, keypad);
+
+ return 0;
+
+err_free_mem:
+ input_free_device(input_dev);
+ kfree(keycodes);
+ kfree(keypad);
+ return err;
+}
+
+static int __devexit matrix_keypad_remove(struct platform_device *pdev)
+{
+ struct matrix_keypad *keypad = platform_get_drvdata(pdev);
+ const struct matrix_keypad_platform_data *pdata = keypad->pdata;
+ int i;
+
+ device_init_wakeup(&pdev->dev, 0);
+
+ if (pdata->clustered_irq > 0) {
+ free_irq(pdata->clustered_irq, keypad);
+ } else {
+ for (i = 0; i < pdata->num_row_gpios; i++)
+ free_irq(gpio_to_irq(pdata->row_gpios[i]), keypad);
+ }
+
+ for (i = 0; i < pdata->num_row_gpios; i++)
+ gpio_free(pdata->row_gpios[i]);
+
+ for (i = 0; i < pdata->num_col_gpios; i++)
+ gpio_free(pdata->col_gpios[i]);
+
+ input_unregister_device(keypad->input_dev);
+ platform_set_drvdata(pdev, NULL);
+ kfree(keypad->keycodes);
+ kfree(keypad);
+
+ return 0;
+}
+
+static struct platform_driver matrix_keypad_driver = {
+ .probe = matrix_keypad_probe,
+ .remove = __devexit_p(matrix_keypad_remove),
+ .driver = {
+ .name = "matrix-keypad",
+ .owner = THIS_MODULE,
+#ifdef CONFIG_PM
+ .pm = &matrix_keypad_pm_ops,
+#endif
+ },
+};
+
+static int __init matrix_keypad_init(void)
+{
+ return platform_driver_register(&matrix_keypad_driver);
+}
+
+static void __exit matrix_keypad_exit(void)
+{
+ platform_driver_unregister(&matrix_keypad_driver);
+}
+
+module_init(matrix_keypad_init);
+module_exit(matrix_keypad_exit);
+
+MODULE_AUTHOR("Marek Vasut <marek.vasut@gmail.com>");
+MODULE_DESCRIPTION("GPIO Driven Matrix Keypad Driver");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:matrix-keypad");
diff --git a/drivers/input/keyboard/max7359_keypad.c b/drivers/input/keyboard/max7359_keypad.c
new file mode 100644
index 0000000..5afe35a
--- /dev/null
+++ b/drivers/input/keyboard/max7359_keypad.c
@@ -0,0 +1,333 @@
+/*
+ * max7359_keypad.c - MAX7359 Key Switch Controller Driver
+ *
+ * Copyright (C) 2009 Samsung Electronics
+ * Kim Kyuwon <q1.kim@samsung.com>
+ *
+ * Based on pxa27x_keypad.c
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Datasheet: http://www.maxim-ic.com/quick_view2.cfm/qv_pk/5456
+ */
+
+#include <linux/module.h>
+#include <linux/i2c.h>
+#include <linux/slab.h>
+#include <linux/interrupt.h>
+#include <linux/pm.h>
+#include <linux/input.h>
+#include <linux/input/matrix_keypad.h>
+
+#define MAX7359_MAX_KEY_ROWS 8
+#define MAX7359_MAX_KEY_COLS 8
+#define MAX7359_MAX_KEY_NUM (MAX7359_MAX_KEY_ROWS * MAX7359_MAX_KEY_COLS)
+#define MAX7359_ROW_SHIFT 3
+
+/*
+ * MAX7359 registers
+ */
+#define MAX7359_REG_KEYFIFO 0x00
+#define MAX7359_REG_CONFIG 0x01
+#define MAX7359_REG_DEBOUNCE 0x02
+#define MAX7359_REG_INTERRUPT 0x03
+#define MAX7359_REG_PORTS 0x04
+#define MAX7359_REG_KEYREP 0x05
+#define MAX7359_REG_SLEEP 0x06
+
+/*
+ * Configuration register bits
+ */
+#define MAX7359_CFG_SLEEP (1 << 7)
+#define MAX7359_CFG_INTERRUPT (1 << 5)
+#define MAX7359_CFG_KEY_RELEASE (1 << 3)
+#define MAX7359_CFG_WAKEUP (1 << 1)
+#define MAX7359_CFG_TIMEOUT (1 << 0)
+
+/*
+ * Autosleep register values (ms)
+ */
+#define MAX7359_AUTOSLEEP_8192 0x01
+#define MAX7359_AUTOSLEEP_4096 0x02
+#define MAX7359_AUTOSLEEP_2048 0x03
+#define MAX7359_AUTOSLEEP_1024 0x04
+#define MAX7359_AUTOSLEEP_512 0x05
+#define MAX7359_AUTOSLEEP_256 0x06
+
+struct max7359_keypad {
+ /* matrix key code map */
+ unsigned short keycodes[MAX7359_MAX_KEY_NUM];
+
+ struct input_dev *input_dev;
+ struct i2c_client *client;
+};
+
+static int max7359_write_reg(struct i2c_client *client, u8 reg, u8 val)
+{
+ int ret = i2c_smbus_write_byte_data(client, reg, val);
+
+ if (ret < 0)
+ dev_err(&client->dev, "%s: reg 0x%x, val 0x%x, err %d\n",
+ __func__, reg, val, ret);
+ return ret;
+}
+
+static int max7359_read_reg(struct i2c_client *client, int reg)
+{
+ int ret = i2c_smbus_read_byte_data(client, reg);
+
+ if (ret < 0)
+ dev_err(&client->dev, "%s: reg 0x%x, err %d\n",
+ __func__, reg, ret);
+ return ret;
+}
+
+static void max7359_build_keycode(struct max7359_keypad *keypad,
+ const struct matrix_keymap_data *keymap_data)
+{
+ struct input_dev *input_dev = keypad->input_dev;
+ int i;
+
+ for (i = 0; i < keymap_data->keymap_size; i++) {
+ unsigned int key = keymap_data->keymap[i];
+ unsigned int row = KEY_ROW(key);
+ unsigned int col = KEY_COL(key);
+ unsigned int scancode = MATRIX_SCAN_CODE(row, col,
+ MAX7359_ROW_SHIFT);
+ unsigned short keycode = KEY_VAL(key);
+
+ keypad->keycodes[scancode] = keycode;
+ __set_bit(keycode, input_dev->keybit);
+ }
+ __clear_bit(KEY_RESERVED, input_dev->keybit);
+}
+
+/* runs in an IRQ thread -- can (and will!) sleep */
+static irqreturn_t max7359_interrupt(int irq, void *dev_id)
+{
+ struct max7359_keypad *keypad = dev_id;
+ struct input_dev *input_dev = keypad->input_dev;
+ int val, row, col, release, code;
+
+ val = max7359_read_reg(keypad->client, MAX7359_REG_KEYFIFO);
+ row = val & 0x7;
+ col = (val >> 3) & 0x7;
+ release = val & 0x40;
+
+ code = MATRIX_SCAN_CODE(row, col, MAX7359_ROW_SHIFT);
+
+ dev_dbg(&keypad->client->dev,
+ "key[%d:%d] %s\n", row, col, release ? "release" : "press");
+
+ input_event(input_dev, EV_MSC, MSC_SCAN, code);
+ input_report_key(input_dev, keypad->keycodes[code], !release);
+ input_sync(input_dev);
+
+ return IRQ_HANDLED;
+}
+
+/*
+ * Let MAX7359 fall into a deep sleep:
+ * If no keys are pressed, enter sleep mode for 8192 ms. And if any
+ * key is pressed, the MAX7359 returns to normal operating mode.
+ */
+static inline void max7359_fall_deepsleep(struct i2c_client *client)
+{
+ max7359_write_reg(client, MAX7359_REG_SLEEP, MAX7359_AUTOSLEEP_8192);
+}
+
+/*
+ * Let MAX7359 take a catnap:
+ * Autosleep just for 256 ms.
+ */
+static inline void max7359_take_catnap(struct i2c_client *client)
+{
+ max7359_write_reg(client, MAX7359_REG_SLEEP, MAX7359_AUTOSLEEP_256);
+}
+
+static int max7359_open(struct input_dev *dev)
+{
+ struct max7359_keypad *keypad = input_get_drvdata(dev);
+
+ max7359_take_catnap(keypad->client);
+
+ return 0;
+}
+
+static void max7359_close(struct input_dev *dev)
+{
+ struct max7359_keypad *keypad = input_get_drvdata(dev);
+
+ max7359_fall_deepsleep(keypad->client);
+}
+
+static void max7359_initialize(struct i2c_client *client)
+{
+ max7359_write_reg(client, MAX7359_REG_CONFIG,
+ MAX7359_CFG_INTERRUPT | /* Irq clears after host read */
+ MAX7359_CFG_KEY_RELEASE | /* Key release enable */
+ MAX7359_CFG_WAKEUP); /* Key press wakeup enable */
+
+ /* Full key-scan functionality */
+ max7359_write_reg(client, MAX7359_REG_DEBOUNCE, 0x1F);
+
+ /* nINT asserts every debounce cycles */
+ max7359_write_reg(client, MAX7359_REG_INTERRUPT, 0x01);
+
+ max7359_fall_deepsleep(client);
+}
+
+static int __devinit max7359_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ const struct matrix_keymap_data *keymap_data = client->dev.platform_data;
+ struct max7359_keypad *keypad;
+ struct input_dev *input_dev;
+ int ret;
+ int error;
+
+ if (!client->irq) {
+ dev_err(&client->dev, "The irq number should not be zero\n");
+ return -EINVAL;
+ }
+
+ /* Detect MAX7359: The initial Keys FIFO value is '0x3F' */
+ ret = max7359_read_reg(client, MAX7359_REG_KEYFIFO);
+ if (ret < 0) {
+ dev_err(&client->dev, "failed to detect device\n");
+ return -ENODEV;
+ }
+
+ dev_dbg(&client->dev, "keys FIFO is 0x%02x\n", ret);
+
+ keypad = kzalloc(sizeof(struct max7359_keypad), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!keypad || !input_dev) {
+ dev_err(&client->dev, "failed to allocate memory\n");
+ error = -ENOMEM;
+ goto failed_free_mem;
+ }
+
+ keypad->client = client;
+ keypad->input_dev = input_dev;
+
+ input_dev->name = client->name;
+ input_dev->id.bustype = BUS_I2C;
+ input_dev->open = max7359_open;
+ input_dev->close = max7359_close;
+ input_dev->dev.parent = &client->dev;
+
+ input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP);
+ input_dev->keycodesize = sizeof(keypad->keycodes[0]);
+ input_dev->keycodemax = ARRAY_SIZE(keypad->keycodes);
+ input_dev->keycode = keypad->keycodes;
+
+ input_set_capability(input_dev, EV_MSC, MSC_SCAN);
+ input_set_drvdata(input_dev, keypad);
+
+ max7359_build_keycode(keypad, keymap_data);
+
+ error = request_threaded_irq(client->irq, NULL, max7359_interrupt,
+ IRQF_TRIGGER_LOW | IRQF_ONESHOT,
+ client->name, keypad);
+ if (error) {
+ dev_err(&client->dev, "failed to register interrupt\n");
+ goto failed_free_mem;
+ }
+
+ /* Register the input device */
+ error = input_register_device(input_dev);
+ if (error) {
+ dev_err(&client->dev, "failed to register input device\n");
+ goto failed_free_irq;
+ }
+
+ /* Initialize MAX7359 */
+ max7359_initialize(client);
+
+ i2c_set_clientdata(client, keypad);
+ device_init_wakeup(&client->dev, 1);
+
+ return 0;
+
+failed_free_irq:
+ free_irq(client->irq, keypad);
+failed_free_mem:
+ input_free_device(input_dev);
+ kfree(keypad);
+ return error;
+}
+
+static int __devexit max7359_remove(struct i2c_client *client)
+{
+ struct max7359_keypad *keypad = i2c_get_clientdata(client);
+
+ free_irq(client->irq, keypad);
+ input_unregister_device(keypad->input_dev);
+ kfree(keypad);
+
+ return 0;
+}
+
+#ifdef CONFIG_PM
+static int max7359_suspend(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+
+ max7359_fall_deepsleep(client);
+
+ if (device_may_wakeup(&client->dev))
+ enable_irq_wake(client->irq);
+
+ return 0;
+}
+
+static int max7359_resume(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+
+ if (device_may_wakeup(&client->dev))
+ disable_irq_wake(client->irq);
+
+ /* Restore the default setting */
+ max7359_take_catnap(client);
+
+ return 0;
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(max7359_pm, max7359_suspend, max7359_resume);
+
+static const struct i2c_device_id max7359_ids[] = {
+ { "max7359", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, max7359_ids);
+
+static struct i2c_driver max7359_i2c_driver = {
+ .driver = {
+ .name = "max7359",
+ .pm = &max7359_pm,
+ },
+ .probe = max7359_probe,
+ .remove = __devexit_p(max7359_remove),
+ .id_table = max7359_ids,
+};
+
+static int __init max7359_init(void)
+{
+ return i2c_add_driver(&max7359_i2c_driver);
+}
+module_init(max7359_init);
+
+static void __exit max7359_exit(void)
+{
+ i2c_del_driver(&max7359_i2c_driver);
+}
+module_exit(max7359_exit);
+
+MODULE_AUTHOR("Kim Kyuwon <q1.kim@samsung.com>");
+MODULE_DESCRIPTION("MAX7359 Key Switch Controller Driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/input/keyboard/mcs_touchkey.c b/drivers/input/keyboard/mcs_touchkey.c
new file mode 100644
index 0000000..af1aab3
--- /dev/null
+++ b/drivers/input/keyboard/mcs_touchkey.c
@@ -0,0 +1,294 @@
+/*
+ * Touchkey driver for MELFAS MCS5000/5080 controller
+ *
+ * Copyright (C) 2010 Samsung Electronics Co.Ltd
+ * Author: HeungJun Kim <riverful.kim@samsung.com>
+ * Author: Joonyoung Shim <jy0922.shim@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/i2c.h>
+#include <linux/i2c/mcs.h>
+#include <linux/interrupt.h>
+#include <linux/input.h>
+#include <linux/irq.h>
+#include <linux/slab.h>
+#include <linux/pm.h>
+
+/* MCS5000 Touchkey */
+#define MCS5000_TOUCHKEY_STATUS 0x04
+#define MCS5000_TOUCHKEY_STATUS_PRESS 7
+#define MCS5000_TOUCHKEY_FW 0x0a
+#define MCS5000_TOUCHKEY_BASE_VAL 0x61
+
+/* MCS5080 Touchkey */
+#define MCS5080_TOUCHKEY_STATUS 0x00
+#define MCS5080_TOUCHKEY_STATUS_PRESS 3
+#define MCS5080_TOUCHKEY_FW 0x01
+#define MCS5080_TOUCHKEY_BASE_VAL 0x1
+
+enum mcs_touchkey_type {
+ MCS5000_TOUCHKEY,
+ MCS5080_TOUCHKEY,
+};
+
+struct mcs_touchkey_chip {
+ unsigned int status_reg;
+ unsigned int pressbit;
+ unsigned int press_invert;
+ unsigned int baseval;
+};
+
+struct mcs_touchkey_data {
+ void (*poweron)(bool);
+
+ struct i2c_client *client;
+ struct input_dev *input_dev;
+ struct mcs_touchkey_chip chip;
+ unsigned int key_code;
+ unsigned int key_val;
+ unsigned short keycodes[];
+};
+
+static irqreturn_t mcs_touchkey_interrupt(int irq, void *dev_id)
+{
+ struct mcs_touchkey_data *data = dev_id;
+ struct mcs_touchkey_chip *chip = &data->chip;
+ struct i2c_client *client = data->client;
+ struct input_dev *input = data->input_dev;
+ unsigned int key_val;
+ unsigned int pressed;
+ int val;
+
+ val = i2c_smbus_read_byte_data(client, chip->status_reg);
+ if (val < 0) {
+ dev_err(&client->dev, "i2c read error [%d]\n", val);
+ goto out;
+ }
+
+ pressed = (val & (1 << chip->pressbit)) >> chip->pressbit;
+ if (chip->press_invert)
+ pressed ^= chip->press_invert;
+
+ /* key_val is 0 when released, so we should use key_val of press. */
+ if (pressed) {
+ key_val = val & (0xff >> (8 - chip->pressbit));
+ if (!key_val)
+ goto out;
+ key_val -= chip->baseval;
+ data->key_code = data->keycodes[key_val];
+ data->key_val = key_val;
+ }
+
+ input_event(input, EV_MSC, MSC_SCAN, data->key_val);
+ input_report_key(input, data->key_code, pressed);
+ input_sync(input);
+
+ dev_dbg(&client->dev, "key %d %d %s\n", data->key_val, data->key_code,
+ pressed ? "pressed" : "released");
+
+ out:
+ return IRQ_HANDLED;
+}
+
+static int __devinit mcs_touchkey_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ const struct mcs_platform_data *pdata;
+ struct mcs_touchkey_data *data;
+ struct input_dev *input_dev;
+ unsigned int fw_reg;
+ int fw_ver;
+ int error;
+ int i;
+
+ pdata = client->dev.platform_data;
+ if (!pdata) {
+ dev_err(&client->dev, "no platform data defined\n");
+ return -EINVAL;
+ }
+
+ data = kzalloc(sizeof(struct mcs_touchkey_data) +
+ sizeof(data->keycodes[0]) * (pdata->key_maxval + 1),
+ GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!data || !input_dev) {
+ dev_err(&client->dev, "Failed to allocate memory\n");
+ error = -ENOMEM;
+ goto err_free_mem;
+ }
+
+ data->client = client;
+ data->input_dev = input_dev;
+
+ if (id->driver_data == MCS5000_TOUCHKEY) {
+ data->chip.status_reg = MCS5000_TOUCHKEY_STATUS;
+ data->chip.pressbit = MCS5000_TOUCHKEY_STATUS_PRESS;
+ data->chip.baseval = MCS5000_TOUCHKEY_BASE_VAL;
+ fw_reg = MCS5000_TOUCHKEY_FW;
+ } else {
+ data->chip.status_reg = MCS5080_TOUCHKEY_STATUS;
+ data->chip.pressbit = MCS5080_TOUCHKEY_STATUS_PRESS;
+ data->chip.press_invert = 1;
+ data->chip.baseval = MCS5080_TOUCHKEY_BASE_VAL;
+ fw_reg = MCS5080_TOUCHKEY_FW;
+ }
+
+ fw_ver = i2c_smbus_read_byte_data(client, fw_reg);
+ if (fw_ver < 0) {
+ error = fw_ver;
+ dev_err(&client->dev, "i2c read error[%d]\n", error);
+ goto err_free_mem;
+ }
+ dev_info(&client->dev, "Firmware version: %d\n", fw_ver);
+
+ input_dev->name = "MELPAS MCS Touchkey";
+ input_dev->id.bustype = BUS_I2C;
+ input_dev->dev.parent = &client->dev;
+ input_dev->evbit[0] = BIT_MASK(EV_KEY);
+ if (!pdata->no_autorepeat)
+ input_dev->evbit[0] |= BIT_MASK(EV_REP);
+ input_dev->keycode = data->keycodes;
+ input_dev->keycodesize = sizeof(data->keycodes[0]);
+ input_dev->keycodemax = pdata->key_maxval + 1;
+
+ for (i = 0; i < pdata->keymap_size; i++) {
+ unsigned int val = MCS_KEY_VAL(pdata->keymap[i]);
+ unsigned int code = MCS_KEY_CODE(pdata->keymap[i]);
+
+ data->keycodes[val] = code;
+ __set_bit(code, input_dev->keybit);
+ }
+
+ input_set_capability(input_dev, EV_MSC, MSC_SCAN);
+ input_set_drvdata(input_dev, data);
+
+ if (pdata->cfg_pin)
+ pdata->cfg_pin();
+
+ if (pdata->poweron) {
+ data->poweron = pdata->poweron;
+ data->poweron(true);
+ }
+
+ error = request_threaded_irq(client->irq, NULL, mcs_touchkey_interrupt,
+ IRQF_TRIGGER_FALLING, client->dev.driver->name, data);
+ if (error) {
+ dev_err(&client->dev, "Failed to register interrupt\n");
+ goto err_free_mem;
+ }
+
+ error = input_register_device(input_dev);
+ if (error)
+ goto err_free_irq;
+
+ i2c_set_clientdata(client, data);
+ return 0;
+
+err_free_irq:
+ free_irq(client->irq, data);
+err_free_mem:
+ input_free_device(input_dev);
+ kfree(data);
+ return error;
+}
+
+static int __devexit mcs_touchkey_remove(struct i2c_client *client)
+{
+ struct mcs_touchkey_data *data = i2c_get_clientdata(client);
+
+ free_irq(client->irq, data);
+ if (data->poweron)
+ data->poweron(false);
+ input_unregister_device(data->input_dev);
+ kfree(data);
+
+ return 0;
+}
+
+static void mcs_touchkey_shutdown(struct i2c_client *client)
+{
+ struct mcs_touchkey_data *data = i2c_get_clientdata(client);
+
+ if (data->poweron)
+ data->poweron(false);
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int mcs_touchkey_suspend(struct device *dev)
+{
+ struct mcs_touchkey_data *data = dev_get_drvdata(dev);
+ struct i2c_client *client = data->client;
+
+ /* Disable the work */
+ disable_irq(client->irq);
+
+ /* Finally turn off the power */
+ if (data->poweron)
+ data->poweron(false);
+
+ return 0;
+}
+
+static int mcs_touchkey_resume(struct device *dev)
+{
+ struct mcs_touchkey_data *data = dev_get_drvdata(dev);
+ struct i2c_client *client = data->client;
+
+ /* Enable the device first */
+ if (data->poweron)
+ data->poweron(true);
+
+ /* Enable irq again */
+ enable_irq(client->irq);
+
+ return 0;
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(mcs_touchkey_pm_ops,
+ mcs_touchkey_suspend, mcs_touchkey_resume);
+
+static const struct i2c_device_id mcs_touchkey_id[] = {
+ { "mcs5000_touchkey", MCS5000_TOUCHKEY },
+ { "mcs5080_touchkey", MCS5080_TOUCHKEY },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, mcs_touchkey_id);
+
+static struct i2c_driver mcs_touchkey_driver = {
+ .driver = {
+ .name = "mcs_touchkey",
+ .owner = THIS_MODULE,
+ .pm = &mcs_touchkey_pm_ops,
+ },
+ .probe = mcs_touchkey_probe,
+ .remove = __devexit_p(mcs_touchkey_remove),
+ .shutdown = mcs_touchkey_shutdown,
+ .id_table = mcs_touchkey_id,
+};
+
+static int __init mcs_touchkey_init(void)
+{
+ return i2c_add_driver(&mcs_touchkey_driver);
+}
+
+static void __exit mcs_touchkey_exit(void)
+{
+ i2c_del_driver(&mcs_touchkey_driver);
+}
+
+module_init(mcs_touchkey_init);
+module_exit(mcs_touchkey_exit);
+
+/* Module information */
+MODULE_AUTHOR("Joonyoung Shim <jy0922.shim@samsung.com>");
+MODULE_AUTHOR("HeungJun Kim <riverful.kim@samsung.com>");
+MODULE_DESCRIPTION("Touchkey driver for MELFAS MCS5000/5080 controller");
+MODULE_LICENSE("GPL");
diff --git a/drivers/input/keyboard/mpr121_touchkey.c b/drivers/input/keyboard/mpr121_touchkey.c
new file mode 100644
index 0000000..1c1615d
--- /dev/null
+++ b/drivers/input/keyboard/mpr121_touchkey.c
@@ -0,0 +1,347 @@
+/*
+ * Touchkey driver for Freescale MPR121 Controllor
+ *
+ * Copyright (C) 2011 Freescale Semiconductor, Inc.
+ * Author: Zhang Jiejing <jiejing.zhang@freescale.com>
+ *
+ * Based on mcs_touchkey.c
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/input.h>
+#include <linux/i2c.h>
+#include <linux/slab.h>
+#include <linux/delay.h>
+#include <linux/bitops.h>
+#include <linux/interrupt.h>
+#include <linux/i2c/mpr121_touchkey.h>
+
+/* Register definitions */
+#define ELE_TOUCH_STATUS_0_ADDR 0x0
+#define ELE_TOUCH_STATUS_1_ADDR 0X1
+#define MHD_RISING_ADDR 0x2b
+#define NHD_RISING_ADDR 0x2c
+#define NCL_RISING_ADDR 0x2d
+#define FDL_RISING_ADDR 0x2e
+#define MHD_FALLING_ADDR 0x2f
+#define NHD_FALLING_ADDR 0x30
+#define NCL_FALLING_ADDR 0x31
+#define FDL_FALLING_ADDR 0x32
+#define ELE0_TOUCH_THRESHOLD_ADDR 0x41
+#define ELE0_RELEASE_THRESHOLD_ADDR 0x42
+#define AFE_CONF_ADDR 0x5c
+#define FILTER_CONF_ADDR 0x5d
+
+/*
+ * ELECTRODE_CONF_ADDR: This register configures the number of
+ * enabled capacitance sensing inputs and its run/suspend mode.
+ */
+#define ELECTRODE_CONF_ADDR 0x5e
+#define ELECTRODE_CONF_QUICK_CHARGE 0x80
+#define AUTO_CONFIG_CTRL_ADDR 0x7b
+#define AUTO_CONFIG_USL_ADDR 0x7d
+#define AUTO_CONFIG_LSL_ADDR 0x7e
+#define AUTO_CONFIG_TL_ADDR 0x7f
+
+/* Threshold of touch/release trigger */
+#define TOUCH_THRESHOLD 0x08
+#define RELEASE_THRESHOLD 0x05
+/* Masks for touch and release triggers */
+#define TOUCH_STATUS_MASK 0xfff
+/* MPR121 has 12 keys */
+#define MPR121_MAX_KEY_COUNT 12
+
+struct mpr121_touchkey {
+ struct i2c_client *client;
+ struct input_dev *input_dev;
+ unsigned int key_val;
+ unsigned int statusbits;
+ unsigned int keycount;
+ u16 keycodes[MPR121_MAX_KEY_COUNT];
+};
+
+struct mpr121_init_register {
+ int addr;
+ u8 val;
+};
+
+static const struct mpr121_init_register init_reg_table[] __devinitconst = {
+ { MHD_RISING_ADDR, 0x1 },
+ { NHD_RISING_ADDR, 0x1 },
+ { MHD_FALLING_ADDR, 0x1 },
+ { NHD_FALLING_ADDR, 0x1 },
+ { NCL_FALLING_ADDR, 0xff },
+ { FDL_FALLING_ADDR, 0x02 },
+ { FILTER_CONF_ADDR, 0x04 },
+ { AFE_CONF_ADDR, 0x0b },
+ { AUTO_CONFIG_CTRL_ADDR, 0x0b },
+};
+
+static irqreturn_t mpr_touchkey_interrupt(int irq, void *dev_id)
+{
+ struct mpr121_touchkey *mpr121 = dev_id;
+ struct i2c_client *client = mpr121->client;
+ struct input_dev *input = mpr121->input_dev;
+ unsigned int key_num, key_val, pressed;
+ int reg;
+
+ reg = i2c_smbus_read_byte_data(client, ELE_TOUCH_STATUS_1_ADDR);
+ if (reg < 0) {
+ dev_err(&client->dev, "i2c read error [%d]\n", reg);
+ goto out;
+ }
+
+ reg <<= 8;
+ reg |= i2c_smbus_read_byte_data(client, ELE_TOUCH_STATUS_0_ADDR);
+ if (reg < 0) {
+ dev_err(&client->dev, "i2c read error [%d]\n", reg);
+ goto out;
+ }
+
+ reg &= TOUCH_STATUS_MASK;
+ /* use old press bit to figure out which bit changed */
+ key_num = ffs(reg ^ mpr121->statusbits) - 1;
+ pressed = reg & (1 << key_num);
+ mpr121->statusbits = reg;
+
+ key_val = mpr121->keycodes[key_num];
+
+ input_event(input, EV_MSC, MSC_SCAN, key_num);
+ input_report_key(input, key_val, pressed);
+ input_sync(input);
+
+ dev_dbg(&client->dev, "key %d %d %s\n", key_num, key_val,
+ pressed ? "pressed" : "released");
+
+out:
+ return IRQ_HANDLED;
+}
+
+static int __devinit mpr121_phys_init(const struct mpr121_platform_data *pdata,
+ struct mpr121_touchkey *mpr121,
+ struct i2c_client *client)
+{
+ const struct mpr121_init_register *reg;
+ unsigned char usl, lsl, tl, eleconf;
+ int i, t, vdd, ret;
+
+ /* Set up touch/release threshold for ele0-ele11 */
+ for (i = 0; i <= MPR121_MAX_KEY_COUNT; i++) {
+ t = ELE0_TOUCH_THRESHOLD_ADDR + (i * 2);
+ ret = i2c_smbus_write_byte_data(client, t, TOUCH_THRESHOLD);
+ if (ret < 0)
+ goto err_i2c_write;
+ ret = i2c_smbus_write_byte_data(client, t + 1,
+ RELEASE_THRESHOLD);
+ if (ret < 0)
+ goto err_i2c_write;
+ }
+
+ /* Set up init register */
+ for (i = 0; i < ARRAY_SIZE(init_reg_table); i++) {
+ reg = &init_reg_table[i];
+ ret = i2c_smbus_write_byte_data(client, reg->addr, reg->val);
+ if (ret < 0)
+ goto err_i2c_write;
+ }
+
+
+ /*
+ * Capacitance on sensing input varies and needs to be compensated.
+ * The internal MPR121-auto-configuration can do this if it's
+ * registers are set properly (based on pdata->vdd_uv).
+ */
+ vdd = pdata->vdd_uv / 1000;
+ usl = ((vdd - 700) * 256) / vdd;
+ lsl = (usl * 65) / 100;
+ tl = (usl * 90) / 100;
+ ret = i2c_smbus_write_byte_data(client, AUTO_CONFIG_USL_ADDR, usl);
+ ret |= i2c_smbus_write_byte_data(client, AUTO_CONFIG_LSL_ADDR, lsl);
+ ret |= i2c_smbus_write_byte_data(client, AUTO_CONFIG_TL_ADDR, tl);
+
+ /*
+ * Quick charge bit will let the capacitive charge to ready
+ * state quickly, or the buttons may not function after system
+ * boot.
+ */
+ eleconf = mpr121->keycount | ELECTRODE_CONF_QUICK_CHARGE;
+ ret |= i2c_smbus_write_byte_data(client, ELECTRODE_CONF_ADDR,
+ eleconf);
+ if (ret != 0)
+ goto err_i2c_write;
+
+ dev_dbg(&client->dev, "set up with %x keys.\n", mpr121->keycount);
+
+ return 0;
+
+err_i2c_write:
+ dev_err(&client->dev, "i2c write error: %d\n", ret);
+ return ret;
+}
+
+static int __devinit mpr_touchkey_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ const struct mpr121_platform_data *pdata = client->dev.platform_data;
+ struct mpr121_touchkey *mpr121;
+ struct input_dev *input_dev;
+ int error;
+ int i;
+
+ if (!pdata) {
+ dev_err(&client->dev, "no platform data defined\n");
+ return -EINVAL;
+ }
+
+ if (!pdata->keymap || !pdata->keymap_size) {
+ dev_err(&client->dev, "missing keymap data\n");
+ return -EINVAL;
+ }
+
+ if (pdata->keymap_size > MPR121_MAX_KEY_COUNT) {
+ dev_err(&client->dev, "too many keys defined\n");
+ return -EINVAL;
+ }
+
+ if (!client->irq) {
+ dev_err(&client->dev, "irq number should not be zero\n");
+ return -EINVAL;
+ }
+
+ mpr121 = kzalloc(sizeof(struct mpr121_touchkey), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!mpr121 || !input_dev) {
+ dev_err(&client->dev, "Failed to allocate memory\n");
+ error = -ENOMEM;
+ goto err_free_mem;
+ }
+
+ mpr121->client = client;
+ mpr121->input_dev = input_dev;
+ mpr121->keycount = pdata->keymap_size;
+
+ input_dev->name = "Freescale MPR121 Touchkey";
+ input_dev->id.bustype = BUS_I2C;
+ input_dev->dev.parent = &client->dev;
+ input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP);
+
+ input_dev->keycode = mpr121->keycodes;
+ input_dev->keycodesize = sizeof(mpr121->keycodes[0]);
+ input_dev->keycodemax = mpr121->keycount;
+
+ for (i = 0; i < pdata->keymap_size; i++) {
+ input_set_capability(input_dev, EV_KEY, pdata->keymap[i]);
+ mpr121->keycodes[i] = pdata->keymap[i];
+ }
+
+ error = mpr121_phys_init(pdata, mpr121, client);
+ if (error) {
+ dev_err(&client->dev, "Failed to init register\n");
+ goto err_free_mem;
+ }
+
+ error = request_threaded_irq(client->irq, NULL,
+ mpr_touchkey_interrupt,
+ IRQF_TRIGGER_FALLING,
+ client->dev.driver->name, mpr121);
+ if (error) {
+ dev_err(&client->dev, "Failed to register interrupt\n");
+ goto err_free_mem;
+ }
+
+ error = input_register_device(input_dev);
+ if (error)
+ goto err_free_irq;
+
+ i2c_set_clientdata(client, mpr121);
+ device_init_wakeup(&client->dev, pdata->wakeup);
+
+ return 0;
+
+err_free_irq:
+ free_irq(client->irq, mpr121);
+err_free_mem:
+ input_free_device(input_dev);
+ kfree(mpr121);
+ return error;
+}
+
+static int __devexit mpr_touchkey_remove(struct i2c_client *client)
+{
+ struct mpr121_touchkey *mpr121 = i2c_get_clientdata(client);
+
+ free_irq(client->irq, mpr121);
+ input_unregister_device(mpr121->input_dev);
+ kfree(mpr121);
+
+ return 0;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int mpr_suspend(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+
+ if (device_may_wakeup(&client->dev))
+ enable_irq_wake(client->irq);
+
+ i2c_smbus_write_byte_data(client, ELECTRODE_CONF_ADDR, 0x00);
+
+ return 0;
+}
+
+static int mpr_resume(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct mpr121_touchkey *mpr121 = i2c_get_clientdata(client);
+
+ if (device_may_wakeup(&client->dev))
+ disable_irq_wake(client->irq);
+
+ i2c_smbus_write_byte_data(client, ELECTRODE_CONF_ADDR,
+ mpr121->keycount);
+
+ return 0;
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(mpr121_touchkey_pm_ops, mpr_suspend, mpr_resume);
+
+static const struct i2c_device_id mpr121_id[] = {
+ { "mpr121_touchkey", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, mpr121_id);
+
+static struct i2c_driver mpr_touchkey_driver = {
+ .driver = {
+ .name = "mpr121",
+ .owner = THIS_MODULE,
+ .pm = &mpr121_touchkey_pm_ops,
+ },
+ .id_table = mpr121_id,
+ .probe = mpr_touchkey_probe,
+ .remove = __devexit_p(mpr_touchkey_remove),
+};
+
+static int __init mpr_touchkey_init(void)
+{
+ return i2c_add_driver(&mpr_touchkey_driver);
+}
+module_init(mpr_touchkey_init);
+
+static void __exit mpr_touchkey_exit(void)
+{
+ i2c_del_driver(&mpr_touchkey_driver);
+}
+module_exit(mpr_touchkey_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Zhang Jiejing <jiejing.zhang@freescale.com>");
+MODULE_DESCRIPTION("Touch Key driver for Freescale MPR121 Chip");
diff --git a/drivers/input/keyboard/newtonkbd.c b/drivers/input/keyboard/newtonkbd.c
new file mode 100644
index 0000000..48d1cab
--- /dev/null
+++ b/drivers/input/keyboard/newtonkbd.c
@@ -0,0 +1,180 @@
+/*
+ * Copyright (c) 2000 Justin Cormack
+ */
+
+/*
+ * Newton keyboard driver for Linux
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * Should you need to contact me, the author, you can do so either by
+ * e-mail - mail your message to <j.cormack@doc.ic.ac.uk>, or by paper mail:
+ * Justin Cormack, 68 Dartmouth Park Road, London NW5 1SN, UK.
+ */
+
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/input.h>
+#include <linux/init.h>
+#include <linux/serio.h>
+
+#define DRIVER_DESC "Newton keyboard driver"
+
+MODULE_AUTHOR("Justin Cormack <j.cormack@doc.ic.ac.uk>");
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+#define NKBD_KEY 0x7f
+#define NKBD_PRESS 0x80
+
+static unsigned char nkbd_keycode[128] = {
+ KEY_A, KEY_S, KEY_D, KEY_F, KEY_H, KEY_G, KEY_Z, KEY_X,
+ KEY_C, KEY_V, 0, KEY_B, KEY_Q, KEY_W, KEY_E, KEY_R,
+ KEY_Y, KEY_T, KEY_1, KEY_2, KEY_3, KEY_4, KEY_6, KEY_5,
+ KEY_EQUAL, KEY_9, KEY_7, KEY_MINUS, KEY_8, KEY_0, KEY_RIGHTBRACE, KEY_O,
+ KEY_U, KEY_LEFTBRACE, KEY_I, KEY_P, KEY_ENTER, KEY_L, KEY_J, KEY_APOSTROPHE,
+ KEY_K, KEY_SEMICOLON, KEY_BACKSLASH, KEY_COMMA, KEY_SLASH, KEY_N, KEY_M, KEY_DOT,
+ KEY_TAB, KEY_SPACE, KEY_GRAVE, KEY_DELETE, 0, 0, 0, KEY_LEFTMETA,
+ KEY_LEFTSHIFT, KEY_CAPSLOCK, KEY_LEFTALT, KEY_LEFTCTRL, KEY_RIGHTSHIFT, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ KEY_LEFT, KEY_RIGHT, KEY_DOWN, KEY_UP, 0
+};
+
+struct nkbd {
+ unsigned char keycode[128];
+ struct input_dev *dev;
+ struct serio *serio;
+ char phys[32];
+};
+
+static irqreturn_t nkbd_interrupt(struct serio *serio,
+ unsigned char data, unsigned int flags)
+{
+ struct nkbd *nkbd = serio_get_drvdata(serio);
+
+ /* invalid scan codes are probably the init sequence, so we ignore them */
+ if (nkbd->keycode[data & NKBD_KEY]) {
+ input_report_key(nkbd->dev, nkbd->keycode[data & NKBD_KEY], data & NKBD_PRESS);
+ input_sync(nkbd->dev);
+ }
+
+ else if (data == 0xe7) /* end of init sequence */
+ printk(KERN_INFO "input: %s on %s\n", nkbd->dev->name, serio->phys);
+ return IRQ_HANDLED;
+
+}
+
+static int nkbd_connect(struct serio *serio, struct serio_driver *drv)
+{
+ struct nkbd *nkbd;
+ struct input_dev *input_dev;
+ int err = -ENOMEM;
+ int i;
+
+ nkbd = kzalloc(sizeof(struct nkbd), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!nkbd || !input_dev)
+ goto fail1;
+
+ nkbd->serio = serio;
+ nkbd->dev = input_dev;
+ snprintf(nkbd->phys, sizeof(nkbd->phys), "%s/input0", serio->phys);
+ memcpy(nkbd->keycode, nkbd_keycode, sizeof(nkbd->keycode));
+
+ input_dev->name = "Newton Keyboard";
+ input_dev->phys = nkbd->phys;
+ input_dev->id.bustype = BUS_RS232;
+ input_dev->id.vendor = SERIO_NEWTON;
+ input_dev->id.product = 0x0001;
+ input_dev->id.version = 0x0100;
+ input_dev->dev.parent = &serio->dev;
+
+ input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP);
+ input_dev->keycode = nkbd->keycode;
+ input_dev->keycodesize = sizeof(unsigned char);
+ input_dev->keycodemax = ARRAY_SIZE(nkbd_keycode);
+ for (i = 0; i < 128; i++)
+ set_bit(nkbd->keycode[i], input_dev->keybit);
+ clear_bit(0, input_dev->keybit);
+
+ serio_set_drvdata(serio, nkbd);
+
+ err = serio_open(serio, drv);
+ if (err)
+ goto fail2;
+
+ err = input_register_device(nkbd->dev);
+ if (err)
+ goto fail3;
+
+ return 0;
+
+ fail3: serio_close(serio);
+ fail2: serio_set_drvdata(serio, NULL);
+ fail1: input_free_device(input_dev);
+ kfree(nkbd);
+ return err;
+}
+
+static void nkbd_disconnect(struct serio *serio)
+{
+ struct nkbd *nkbd = serio_get_drvdata(serio);
+
+ serio_close(serio);
+ serio_set_drvdata(serio, NULL);
+ input_unregister_device(nkbd->dev);
+ kfree(nkbd);
+}
+
+static struct serio_device_id nkbd_serio_ids[] = {
+ {
+ .type = SERIO_RS232,
+ .proto = SERIO_NEWTON,
+ .id = SERIO_ANY,
+ .extra = SERIO_ANY,
+ },
+ { 0 }
+};
+
+MODULE_DEVICE_TABLE(serio, nkbd_serio_ids);
+
+static struct serio_driver nkbd_drv = {
+ .driver = {
+ .name = "newtonkbd",
+ },
+ .description = DRIVER_DESC,
+ .id_table = nkbd_serio_ids,
+ .interrupt = nkbd_interrupt,
+ .connect = nkbd_connect,
+ .disconnect = nkbd_disconnect,
+};
+
+static int __init nkbd_init(void)
+{
+ return serio_register_driver(&nkbd_drv);
+}
+
+static void __exit nkbd_exit(void)
+{
+ serio_unregister_driver(&nkbd_drv);
+}
+
+module_init(nkbd_init);
+module_exit(nkbd_exit);
diff --git a/drivers/input/keyboard/nomadik-ske-keypad.c b/drivers/input/keyboard/nomadik-ske-keypad.c
new file mode 100644
index 0000000..fcdec5e
--- /dev/null
+++ b/drivers/input/keyboard/nomadik-ske-keypad.c
@@ -0,0 +1,409 @@
+/*
+ * Copyright (C) ST-Ericsson SA 2010
+ *
+ * Author: Naveen Kumar G <naveen.gaddipati@stericsson.com> for ST-Ericsson
+ * Author: Sundar Iyer <sundar.iyer@stericsson.com> for ST-Ericsson
+ *
+ * License terms:GNU General Public License (GPL) version 2
+ *
+ * Keypad controller driver for the SKE (Scroll Key Encoder) module used in
+ * the Nomadik 8815 and Ux500 platforms.
+ */
+
+#include <linux/platform_device.h>
+#include <linux/interrupt.h>
+#include <linux/spinlock.h>
+#include <linux/io.h>
+#include <linux/delay.h>
+#include <linux/input.h>
+#include <linux/slab.h>
+#include <linux/clk.h>
+#include <linux/module.h>
+
+#include <plat/ske.h>
+
+/* SKE_CR bits */
+#define SKE_KPMLT (0x1 << 6)
+#define SKE_KPCN (0x7 << 3)
+#define SKE_KPASEN (0x1 << 2)
+#define SKE_KPASON (0x1 << 7)
+
+/* SKE_IMSC bits */
+#define SKE_KPIMA (0x1 << 2)
+
+/* SKE_ICR bits */
+#define SKE_KPICS (0x1 << 3)
+#define SKE_KPICA (0x1 << 2)
+
+/* SKE_RIS bits */
+#define SKE_KPRISA (0x1 << 2)
+
+#define SKE_KEYPAD_ROW_SHIFT 3
+#define SKE_KPD_KEYMAP_SIZE (8 * 8)
+
+/* keypad auto scan registers */
+#define SKE_ASR0 0x20
+#define SKE_ASR1 0x24
+#define SKE_ASR2 0x28
+#define SKE_ASR3 0x2C
+
+#define SKE_NUM_ASRX_REGISTERS (4)
+
+/**
+ * struct ske_keypad - data structure used by keypad driver
+ * @irq: irq no
+ * @reg_base: ske regsiters base address
+ * @input: pointer to input device object
+ * @board: keypad platform device
+ * @keymap: matrix scan code table for keycodes
+ * @clk: clock structure pointer
+ */
+struct ske_keypad {
+ int irq;
+ void __iomem *reg_base;
+ struct input_dev *input;
+ const struct ske_keypad_platform_data *board;
+ unsigned short keymap[SKE_KPD_KEYMAP_SIZE];
+ struct clk *clk;
+ spinlock_t ske_keypad_lock;
+};
+
+static void ske_keypad_set_bits(struct ske_keypad *keypad, u16 addr,
+ u8 mask, u8 data)
+{
+ u32 ret;
+
+ spin_lock(&keypad->ske_keypad_lock);
+
+ ret = readl(keypad->reg_base + addr);
+ ret &= ~mask;
+ ret |= data;
+ writel(ret, keypad->reg_base + addr);
+
+ spin_unlock(&keypad->ske_keypad_lock);
+}
+
+/*
+ * ske_keypad_chip_init: init keypad controller configuration
+ *
+ * Enable Multi key press detection, auto scan mode
+ */
+static int __devinit ske_keypad_chip_init(struct ske_keypad *keypad)
+{
+ u32 value;
+ int timeout = 50;
+
+ /* check SKE_RIS to be 0 */
+ while ((readl(keypad->reg_base + SKE_RIS) != 0x00000000) && timeout--)
+ cpu_relax();
+
+ if (!timeout)
+ return -EINVAL;
+
+ /*
+ * set debounce value
+ * keypad dbounce is configured in DBCR[15:8]
+ * dbounce value in steps of 32/32.768 ms
+ */
+ spin_lock(&keypad->ske_keypad_lock);
+ value = readl(keypad->reg_base + SKE_DBCR);
+ value = value & 0xff;
+ value |= ((keypad->board->debounce_ms * 32000)/32768) << 8;
+ writel(value, keypad->reg_base + SKE_DBCR);
+ spin_unlock(&keypad->ske_keypad_lock);
+
+ /* enable multi key detection */
+ ske_keypad_set_bits(keypad, SKE_CR, 0x0, SKE_KPMLT);
+
+ /*
+ * set up the number of columns
+ * KPCN[5:3] defines no. of keypad columns to be auto scanned
+ */
+ value = (keypad->board->kcol - 1) << 3;
+ ske_keypad_set_bits(keypad, SKE_CR, SKE_KPCN, value);
+
+ /* clear keypad interrupt for auto(and pending SW) scans */
+ ske_keypad_set_bits(keypad, SKE_ICR, 0x0, SKE_KPICA | SKE_KPICS);
+
+ /* un-mask keypad interrupts */
+ ske_keypad_set_bits(keypad, SKE_IMSC, 0x0, SKE_KPIMA);
+
+ /* enable automatic scan */
+ ske_keypad_set_bits(keypad, SKE_CR, 0x0, SKE_KPASEN);
+
+ return 0;
+}
+
+static void ske_keypad_read_data(struct ske_keypad *keypad)
+{
+ struct input_dev *input = keypad->input;
+ u16 status;
+ int col = 0, row = 0, code;
+ int ske_asr, ske_ris, key_pressed, i;
+
+ /*
+ * Read the auto scan registers
+ *
+ * Each SKE_ASRx (x=0 to x=3) contains two row values.
+ * lower byte contains row value for column 2*x,
+ * upper byte contains row value for column 2*x + 1
+ */
+ for (i = 0; i < SKE_NUM_ASRX_REGISTERS; i++) {
+ ske_asr = readl(keypad->reg_base + SKE_ASR0 + (4 * i));
+ if (!ske_asr)
+ continue;
+
+ /* now that ASRx is zero, find out the column x and row y*/
+ if (ske_asr & 0xff) {
+ col = i * 2;
+ status = ske_asr & 0xff;
+ } else {
+ col = (i * 2) + 1;
+ status = (ske_asr & 0xff00) >> 8;
+ }
+
+ /* find out the row */
+ row = __ffs(status);
+
+ code = MATRIX_SCAN_CODE(row, col, SKE_KEYPAD_ROW_SHIFT);
+ ske_ris = readl(keypad->reg_base + SKE_RIS);
+ key_pressed = ske_ris & SKE_KPRISA;
+
+ input_event(input, EV_MSC, MSC_SCAN, code);
+ input_report_key(input, keypad->keymap[code], key_pressed);
+ input_sync(input);
+ }
+}
+
+static irqreturn_t ske_keypad_irq(int irq, void *dev_id)
+{
+ struct ske_keypad *keypad = dev_id;
+ int retries = 20;
+
+ /* disable auto scan interrupt; mask the interrupt generated */
+ ske_keypad_set_bits(keypad, SKE_IMSC, ~SKE_KPIMA, 0x0);
+ ske_keypad_set_bits(keypad, SKE_ICR, 0x0, SKE_KPICA);
+
+ while ((readl(keypad->reg_base + SKE_CR) & SKE_KPASON) && --retries)
+ msleep(5);
+
+ if (retries) {
+ /* SKEx registers are stable and can be read */
+ ske_keypad_read_data(keypad);
+ }
+
+ /* enable auto scan interrupts */
+ ske_keypad_set_bits(keypad, SKE_IMSC, 0x0, SKE_KPIMA);
+
+ return IRQ_HANDLED;
+}
+
+static int __devinit ske_keypad_probe(struct platform_device *pdev)
+{
+ const struct ske_keypad_platform_data *plat = pdev->dev.platform_data;
+ struct ske_keypad *keypad;
+ struct input_dev *input;
+ struct resource *res;
+ int irq;
+ int error;
+
+ if (!plat) {
+ dev_err(&pdev->dev, "invalid keypad platform data\n");
+ return -EINVAL;
+ }
+
+ irq = platform_get_irq(pdev, 0);
+ if (irq < 0) {
+ dev_err(&pdev->dev, "failed to get keypad irq\n");
+ return -EINVAL;
+ }
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!res) {
+ dev_err(&pdev->dev, "missing platform resources\n");
+ return -EINVAL;
+ }
+
+ keypad = kzalloc(sizeof(struct ske_keypad), GFP_KERNEL);
+ input = input_allocate_device();
+ if (!keypad || !input) {
+ dev_err(&pdev->dev, "failed to allocate keypad memory\n");
+ error = -ENOMEM;
+ goto err_free_mem;
+ }
+
+ keypad->irq = irq;
+ keypad->board = plat;
+ keypad->input = input;
+ spin_lock_init(&keypad->ske_keypad_lock);
+
+ if (!request_mem_region(res->start, resource_size(res), pdev->name)) {
+ dev_err(&pdev->dev, "failed to request I/O memory\n");
+ error = -EBUSY;
+ goto err_free_mem;
+ }
+
+ keypad->reg_base = ioremap(res->start, resource_size(res));
+ if (!keypad->reg_base) {
+ dev_err(&pdev->dev, "failed to remap I/O memory\n");
+ error = -ENXIO;
+ goto err_free_mem_region;
+ }
+
+ keypad->clk = clk_get(&pdev->dev, NULL);
+ if (IS_ERR(keypad->clk)) {
+ dev_err(&pdev->dev, "failed to get clk\n");
+ error = PTR_ERR(keypad->clk);
+ goto err_iounmap;
+ }
+
+ input->id.bustype = BUS_HOST;
+ input->name = "ux500-ske-keypad";
+ input->dev.parent = &pdev->dev;
+
+ input->keycode = keypad->keymap;
+ input->keycodesize = sizeof(keypad->keymap[0]);
+ input->keycodemax = ARRAY_SIZE(keypad->keymap);
+
+ input_set_capability(input, EV_MSC, MSC_SCAN);
+
+ __set_bit(EV_KEY, input->evbit);
+ if (!plat->no_autorepeat)
+ __set_bit(EV_REP, input->evbit);
+
+ matrix_keypad_build_keymap(plat->keymap_data, SKE_KEYPAD_ROW_SHIFT,
+ input->keycode, input->keybit);
+
+ clk_enable(keypad->clk);
+
+ /* go through board initialization helpers */
+ if (keypad->board->init)
+ keypad->board->init();
+
+ error = ske_keypad_chip_init(keypad);
+ if (error) {
+ dev_err(&pdev->dev, "unable to init keypad hardware\n");
+ goto err_clk_disable;
+ }
+
+ error = request_threaded_irq(keypad->irq, NULL, ske_keypad_irq,
+ IRQF_ONESHOT, "ske-keypad", keypad);
+ if (error) {
+ dev_err(&pdev->dev, "allocate irq %d failed\n", keypad->irq);
+ goto err_clk_disable;
+ }
+
+ error = input_register_device(input);
+ if (error) {
+ dev_err(&pdev->dev,
+ "unable to register input device: %d\n", error);
+ goto err_free_irq;
+ }
+
+ if (plat->wakeup_enable)
+ device_init_wakeup(&pdev->dev, true);
+
+ platform_set_drvdata(pdev, keypad);
+
+ return 0;
+
+err_free_irq:
+ free_irq(keypad->irq, keypad);
+err_clk_disable:
+ clk_disable(keypad->clk);
+ clk_put(keypad->clk);
+err_iounmap:
+ iounmap(keypad->reg_base);
+err_free_mem_region:
+ release_mem_region(res->start, resource_size(res));
+err_free_mem:
+ input_free_device(input);
+ kfree(keypad);
+ return error;
+}
+
+static int __devexit ske_keypad_remove(struct platform_device *pdev)
+{
+ struct ske_keypad *keypad = platform_get_drvdata(pdev);
+ struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+
+ free_irq(keypad->irq, keypad);
+
+ input_unregister_device(keypad->input);
+
+ clk_disable(keypad->clk);
+ clk_put(keypad->clk);
+
+ if (keypad->board->exit)
+ keypad->board->exit();
+
+ iounmap(keypad->reg_base);
+ release_mem_region(res->start, resource_size(res));
+ kfree(keypad);
+
+ return 0;
+}
+
+#ifdef CONFIG_PM
+static int ske_keypad_suspend(struct device *dev)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ struct ske_keypad *keypad = platform_get_drvdata(pdev);
+ int irq = platform_get_irq(pdev, 0);
+
+ if (device_may_wakeup(dev))
+ enable_irq_wake(irq);
+ else
+ ske_keypad_set_bits(keypad, SKE_IMSC, ~SKE_KPIMA, 0x0);
+
+ return 0;
+}
+
+static int ske_keypad_resume(struct device *dev)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ struct ske_keypad *keypad = platform_get_drvdata(pdev);
+ int irq = platform_get_irq(pdev, 0);
+
+ if (device_may_wakeup(dev))
+ disable_irq_wake(irq);
+ else
+ ske_keypad_set_bits(keypad, SKE_IMSC, 0x0, SKE_KPIMA);
+
+ return 0;
+}
+
+static const struct dev_pm_ops ske_keypad_dev_pm_ops = {
+ .suspend = ske_keypad_suspend,
+ .resume = ske_keypad_resume,
+};
+#endif
+
+struct platform_driver ske_keypad_driver = {
+ .driver = {
+ .name = "nmk-ske-keypad",
+ .owner = THIS_MODULE,
+#ifdef CONFIG_PM
+ .pm = &ske_keypad_dev_pm_ops,
+#endif
+ },
+ .probe = ske_keypad_probe,
+ .remove = __devexit_p(ske_keypad_remove),
+};
+
+static int __init ske_keypad_init(void)
+{
+ return platform_driver_probe(&ske_keypad_driver, ske_keypad_probe);
+}
+module_init(ske_keypad_init);
+
+static void __exit ske_keypad_exit(void)
+{
+ platform_driver_unregister(&ske_keypad_driver);
+}
+module_exit(ske_keypad_exit);
+
+MODULE_LICENSE("GPL v2");
+MODULE_AUTHOR("Naveen Kumar <naveen.gaddipati@stericsson.com> / Sundar Iyer <sundar.iyer@stericsson.com>");
+MODULE_DESCRIPTION("Nomadik Scroll-Key-Encoder Keypad Driver");
+MODULE_ALIAS("platform:nomadik-ske-keypad");
diff --git a/drivers/input/keyboard/omap-keypad.c b/drivers/input/keyboard/omap-keypad.c
new file mode 100644
index 0000000..323bcdf
--- /dev/null
+++ b/drivers/input/keyboard/omap-keypad.c
@@ -0,0 +1,494 @@
+/*
+ * linux/drivers/input/keyboard/omap-keypad.c
+ *
+ * OMAP Keypad Driver
+ *
+ * Copyright (C) 2003 Nokia Corporation
+ * Written by Timo Teräs <ext-timo.teras@nokia.com>
+ *
+ * Added support for H2 & H3 Keypad
+ * Copyright (C) 2004 Texas Instruments
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/types.h>
+#include <linux/input.h>
+#include <linux/kernel.h>
+#include <linux/delay.h>
+#include <linux/platform_device.h>
+#include <linux/mutex.h>
+#include <linux/errno.h>
+#include <linux/slab.h>
+#include <asm/gpio.h>
+#include <plat/keypad.h>
+#include <plat/menelaus.h>
+#include <asm/irq.h>
+#include <mach/hardware.h>
+#include <asm/io.h>
+#include <plat/mux.h>
+
+#undef NEW_BOARD_LEARNING_MODE
+
+static void omap_kp_tasklet(unsigned long);
+static void omap_kp_timer(unsigned long);
+
+static unsigned char keypad_state[8];
+static DEFINE_MUTEX(kp_enable_mutex);
+static int kp_enable = 1;
+static int kp_cur_group = -1;
+
+struct omap_kp {
+ struct input_dev *input;
+ struct timer_list timer;
+ int irq;
+ unsigned int rows;
+ unsigned int cols;
+ unsigned long delay;
+ unsigned int debounce;
+};
+
+static DECLARE_TASKLET_DISABLED(kp_tasklet, omap_kp_tasklet, 0);
+
+static unsigned int *row_gpios;
+static unsigned int *col_gpios;
+
+#ifdef CONFIG_ARCH_OMAP2
+static void set_col_gpio_val(struct omap_kp *omap_kp, u8 value)
+{
+ int col;
+
+ for (col = 0; col < omap_kp->cols; col++)
+ gpio_set_value(col_gpios[col], value & (1 << col));
+}
+
+static u8 get_row_gpio_val(struct omap_kp *omap_kp)
+{
+ int row;
+ u8 value = 0;
+
+ for (row = 0; row < omap_kp->rows; row++) {
+ if (gpio_get_value(row_gpios[row]))
+ value |= (1 << row);
+ }
+ return value;
+}
+#else
+#define set_col_gpio_val(x, y) do {} while (0)
+#define get_row_gpio_val(x) 0
+#endif
+
+static irqreturn_t omap_kp_interrupt(int irq, void *dev_id)
+{
+ struct omap_kp *omap_kp = dev_id;
+
+ /* disable keyboard interrupt and schedule for handling */
+ if (cpu_is_omap24xx()) {
+ int i;
+
+ for (i = 0; i < omap_kp->rows; i++) {
+ int gpio_irq = gpio_to_irq(row_gpios[i]);
+ /*
+ * The interrupt which we're currently handling should
+ * be disabled _nosync() to avoid deadlocks waiting
+ * for this handler to complete. All others should
+ * be disabled the regular way for SMP safety.
+ */
+ if (gpio_irq == irq)
+ disable_irq_nosync(gpio_irq);
+ else
+ disable_irq(gpio_irq);
+ }
+ } else
+ /* disable keyboard interrupt and schedule for handling */
+ omap_writew(1, OMAP1_MPUIO_BASE + OMAP_MPUIO_KBD_MASKIT);
+
+ tasklet_schedule(&kp_tasklet);
+
+ return IRQ_HANDLED;
+}
+
+static void omap_kp_timer(unsigned long data)
+{
+ tasklet_schedule(&kp_tasklet);
+}
+
+static void omap_kp_scan_keypad(struct omap_kp *omap_kp, unsigned char *state)
+{
+ int col = 0;
+
+ /* read the keypad status */
+ if (cpu_is_omap24xx()) {
+ /* read the keypad status */
+ for (col = 0; col < omap_kp->cols; col++) {
+ set_col_gpio_val(omap_kp, ~(1 << col));
+ state[col] = ~(get_row_gpio_val(omap_kp)) & 0xff;
+ }
+ set_col_gpio_val(omap_kp, 0);
+
+ } else {
+ /* disable keyboard interrupt and schedule for handling */
+ omap_writew(1, OMAP1_MPUIO_BASE + OMAP_MPUIO_KBD_MASKIT);
+
+ /* read the keypad status */
+ omap_writew(0xff, OMAP1_MPUIO_BASE + OMAP_MPUIO_KBC);
+ for (col = 0; col < omap_kp->cols; col++) {
+ omap_writew(~(1 << col) & 0xff,
+ OMAP1_MPUIO_BASE + OMAP_MPUIO_KBC);
+
+ udelay(omap_kp->delay);
+
+ state[col] = ~omap_readw(OMAP1_MPUIO_BASE +
+ OMAP_MPUIO_KBR_LATCH) & 0xff;
+ }
+ omap_writew(0x00, OMAP1_MPUIO_BASE + OMAP_MPUIO_KBC);
+ udelay(2);
+ }
+}
+
+static void omap_kp_tasklet(unsigned long data)
+{
+ struct omap_kp *omap_kp_data = (struct omap_kp *) data;
+ unsigned short *keycodes = omap_kp_data->input->keycode;
+ unsigned int row_shift = get_count_order(omap_kp_data->cols);
+ unsigned char new_state[8], changed, key_down = 0;
+ int col, row;
+ int spurious = 0;
+
+ /* check for any changes */
+ omap_kp_scan_keypad(omap_kp_data, new_state);
+
+ /* check for changes and print those */
+ for (col = 0; col < omap_kp_data->cols; col++) {
+ changed = new_state[col] ^ keypad_state[col];
+ key_down |= new_state[col];
+ if (changed == 0)
+ continue;
+
+ for (row = 0; row < omap_kp_data->rows; row++) {
+ int key;
+ if (!(changed & (1 << row)))
+ continue;
+#ifdef NEW_BOARD_LEARNING_MODE
+ printk(KERN_INFO "omap-keypad: key %d-%d %s\n", col,
+ row, (new_state[col] & (1 << row)) ?
+ "pressed" : "released");
+#else
+ key = keycodes[MATRIX_SCAN_CODE(row, col, row_shift)];
+ if (key < 0) {
+ printk(KERN_WARNING
+ "omap-keypad: Spurious key event %d-%d\n",
+ col, row);
+ /* We scan again after a couple of seconds */
+ spurious = 1;
+ continue;
+ }
+
+ if (!(kp_cur_group == (key & GROUP_MASK) ||
+ kp_cur_group == -1))
+ continue;
+
+ kp_cur_group = key & GROUP_MASK;
+ input_report_key(omap_kp_data->input, key & ~GROUP_MASK,
+ new_state[col] & (1 << row));
+#endif
+ }
+ }
+ input_sync(omap_kp_data->input);
+ memcpy(keypad_state, new_state, sizeof(keypad_state));
+
+ if (key_down) {
+ int delay = HZ / 20;
+ /* some key is pressed - keep irq disabled and use timer
+ * to poll the keypad */
+ if (spurious)
+ delay = 2 * HZ;
+ mod_timer(&omap_kp_data->timer, jiffies + delay);
+ } else {
+ /* enable interrupts */
+ if (cpu_is_omap24xx()) {
+ int i;
+ for (i = 0; i < omap_kp_data->rows; i++)
+ enable_irq(gpio_to_irq(row_gpios[i]));
+ } else {
+ omap_writew(0, OMAP1_MPUIO_BASE + OMAP_MPUIO_KBD_MASKIT);
+ kp_cur_group = -1;
+ }
+ }
+}
+
+static ssize_t omap_kp_enable_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ return sprintf(buf, "%u\n", kp_enable);
+}
+
+static ssize_t omap_kp_enable_store(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ int state;
+
+ if (sscanf(buf, "%u", &state) != 1)
+ return -EINVAL;
+
+ if ((state != 1) && (state != 0))
+ return -EINVAL;
+
+ mutex_lock(&kp_enable_mutex);
+ if (state != kp_enable) {
+ if (state)
+ enable_irq(INT_KEYBOARD);
+ else
+ disable_irq(INT_KEYBOARD);
+ kp_enable = state;
+ }
+ mutex_unlock(&kp_enable_mutex);
+
+ return strnlen(buf, count);
+}
+
+static DEVICE_ATTR(enable, S_IRUGO | S_IWUSR, omap_kp_enable_show, omap_kp_enable_store);
+
+#ifdef CONFIG_PM
+static int omap_kp_suspend(struct platform_device *dev, pm_message_t state)
+{
+ /* Nothing yet */
+
+ return 0;
+}
+
+static int omap_kp_resume(struct platform_device *dev)
+{
+ /* Nothing yet */
+
+ return 0;
+}
+#else
+#define omap_kp_suspend NULL
+#define omap_kp_resume NULL
+#endif
+
+static int __devinit omap_kp_probe(struct platform_device *pdev)
+{
+ struct omap_kp *omap_kp;
+ struct input_dev *input_dev;
+ struct omap_kp_platform_data *pdata = pdev->dev.platform_data;
+ int i, col_idx, row_idx, irq_idx, ret;
+ unsigned int row_shift, keycodemax;
+
+ if (!pdata->rows || !pdata->cols || !pdata->keymap_data) {
+ printk(KERN_ERR "No rows, cols or keymap_data from pdata\n");
+ return -EINVAL;
+ }
+
+ row_shift = get_count_order(pdata->cols);
+ keycodemax = pdata->rows << row_shift;
+
+ omap_kp = kzalloc(sizeof(struct omap_kp) +
+ keycodemax * sizeof(unsigned short), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!omap_kp || !input_dev) {
+ kfree(omap_kp);
+ input_free_device(input_dev);
+ return -ENOMEM;
+ }
+
+ platform_set_drvdata(pdev, omap_kp);
+
+ omap_kp->input = input_dev;
+
+ /* Disable the interrupt for the MPUIO keyboard */
+ if (!cpu_is_omap24xx())
+ omap_writew(1, OMAP1_MPUIO_BASE + OMAP_MPUIO_KBD_MASKIT);
+
+ input_dev->keycode = &omap_kp[1];
+ input_dev->keycodesize = sizeof(unsigned short);
+ input_dev->keycodemax = keycodemax;
+
+ if (pdata->rep)
+ __set_bit(EV_REP, input_dev->evbit);
+
+ if (pdata->delay)
+ omap_kp->delay = pdata->delay;
+
+ if (pdata->row_gpios && pdata->col_gpios) {
+ row_gpios = pdata->row_gpios;
+ col_gpios = pdata->col_gpios;
+ }
+
+ omap_kp->rows = pdata->rows;
+ omap_kp->cols = pdata->cols;
+
+ if (cpu_is_omap24xx()) {
+ /* Cols: outputs */
+ for (col_idx = 0; col_idx < omap_kp->cols; col_idx++) {
+ if (gpio_request(col_gpios[col_idx], "omap_kp_col") < 0) {
+ printk(KERN_ERR "Failed to request"
+ "GPIO%d for keypad\n",
+ col_gpios[col_idx]);
+ goto err1;
+ }
+ gpio_direction_output(col_gpios[col_idx], 0);
+ }
+ /* Rows: inputs */
+ for (row_idx = 0; row_idx < omap_kp->rows; row_idx++) {
+ if (gpio_request(row_gpios[row_idx], "omap_kp_row") < 0) {
+ printk(KERN_ERR "Failed to request"
+ "GPIO%d for keypad\n",
+ row_gpios[row_idx]);
+ goto err2;
+ }
+ gpio_direction_input(row_gpios[row_idx]);
+ }
+ } else {
+ col_idx = 0;
+ row_idx = 0;
+ }
+
+ setup_timer(&omap_kp->timer, omap_kp_timer, (unsigned long)omap_kp);
+
+ /* get the irq and init timer*/
+ tasklet_enable(&kp_tasklet);
+ kp_tasklet.data = (unsigned long) omap_kp;
+
+ ret = device_create_file(&pdev->dev, &dev_attr_enable);
+ if (ret < 0)
+ goto err2;
+
+ /* setup input device */
+ __set_bit(EV_KEY, input_dev->evbit);
+ matrix_keypad_build_keymap(pdata->keymap_data, row_shift,
+ input_dev->keycode, input_dev->keybit);
+ input_dev->name = "omap-keypad";
+ input_dev->phys = "omap-keypad/input0";
+ input_dev->dev.parent = &pdev->dev;
+
+ input_dev->id.bustype = BUS_HOST;
+ input_dev->id.vendor = 0x0001;
+ input_dev->id.product = 0x0001;
+ input_dev->id.version = 0x0100;
+
+ ret = input_register_device(omap_kp->input);
+ if (ret < 0) {
+ printk(KERN_ERR "Unable to register omap-keypad input device\n");
+ goto err3;
+ }
+
+ if (pdata->dbounce)
+ omap_writew(0xff, OMAP1_MPUIO_BASE + OMAP_MPUIO_GPIO_DEBOUNCING);
+
+ /* scan current status and enable interrupt */
+ omap_kp_scan_keypad(omap_kp, keypad_state);
+ if (!cpu_is_omap24xx()) {
+ omap_kp->irq = platform_get_irq(pdev, 0);
+ if (omap_kp->irq >= 0) {
+ if (request_irq(omap_kp->irq, omap_kp_interrupt, 0,
+ "omap-keypad", omap_kp) < 0)
+ goto err4;
+ }
+ omap_writew(0, OMAP1_MPUIO_BASE + OMAP_MPUIO_KBD_MASKIT);
+ } else {
+ for (irq_idx = 0; irq_idx < omap_kp->rows; irq_idx++) {
+ if (request_irq(gpio_to_irq(row_gpios[irq_idx]),
+ omap_kp_interrupt,
+ IRQF_TRIGGER_FALLING,
+ "omap-keypad", omap_kp) < 0)
+ goto err5;
+ }
+ }
+ return 0;
+err5:
+ for (i = irq_idx - 1; i >=0; i--)
+ free_irq(row_gpios[i], omap_kp);
+err4:
+ input_unregister_device(omap_kp->input);
+ input_dev = NULL;
+err3:
+ device_remove_file(&pdev->dev, &dev_attr_enable);
+err2:
+ for (i = row_idx - 1; i >=0; i--)
+ gpio_free(row_gpios[i]);
+err1:
+ for (i = col_idx - 1; i >=0; i--)
+ gpio_free(col_gpios[i]);
+
+ kfree(omap_kp);
+ input_free_device(input_dev);
+
+ return -EINVAL;
+}
+
+static int __devexit omap_kp_remove(struct platform_device *pdev)
+{
+ struct omap_kp *omap_kp = platform_get_drvdata(pdev);
+
+ /* disable keypad interrupt handling */
+ tasklet_disable(&kp_tasklet);
+ if (cpu_is_omap24xx()) {
+ int i;
+ for (i = 0; i < omap_kp->cols; i++)
+ gpio_free(col_gpios[i]);
+ for (i = 0; i < omap_kp->rows; i++) {
+ gpio_free(row_gpios[i]);
+ free_irq(gpio_to_irq(row_gpios[i]), omap_kp);
+ }
+ } else {
+ omap_writew(1, OMAP1_MPUIO_BASE + OMAP_MPUIO_KBD_MASKIT);
+ free_irq(omap_kp->irq, omap_kp);
+ }
+
+ del_timer_sync(&omap_kp->timer);
+ tasklet_kill(&kp_tasklet);
+
+ /* unregister everything */
+ input_unregister_device(omap_kp->input);
+
+ kfree(omap_kp);
+
+ return 0;
+}
+
+static struct platform_driver omap_kp_driver = {
+ .probe = omap_kp_probe,
+ .remove = __devexit_p(omap_kp_remove),
+ .suspend = omap_kp_suspend,
+ .resume = omap_kp_resume,
+ .driver = {
+ .name = "omap-keypad",
+ .owner = THIS_MODULE,
+ },
+};
+
+static int __init omap_kp_init(void)
+{
+ printk(KERN_INFO "OMAP Keypad Driver\n");
+ return platform_driver_register(&omap_kp_driver);
+}
+
+static void __exit omap_kp_exit(void)
+{
+ platform_driver_unregister(&omap_kp_driver);
+}
+
+module_init(omap_kp_init);
+module_exit(omap_kp_exit);
+
+MODULE_AUTHOR("Timo Teräs");
+MODULE_DESCRIPTION("OMAP Keypad Driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:omap-keypad");
diff --git a/drivers/input/keyboard/omap4-keypad.c b/drivers/input/keyboard/omap4-keypad.c
new file mode 100644
index 0000000..c51a3c4
--- /dev/null
+++ b/drivers/input/keyboard/omap4-keypad.c
@@ -0,0 +1,354 @@
+/*
+ * OMAP4 Keypad Driver
+ *
+ * Copyright (C) 2010 Texas Instruments
+ *
+ * Author: Abraham Arce <x0066660@ti.com>
+ * Initial Code: Syed Rafiuddin <rafiuddin.syed@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/platform_device.h>
+#include <linux/errno.h>
+#include <linux/io.h>
+#include <linux/input.h>
+#include <linux/slab.h>
+#include <linux/pm_runtime.h>
+
+#include <plat/omap4-keypad.h>
+
+/* OMAP4 registers */
+#define OMAP4_KBD_REVISION 0x00
+#define OMAP4_KBD_SYSCONFIG 0x10
+#define OMAP4_KBD_SYSSTATUS 0x14
+#define OMAP4_KBD_IRQSTATUS 0x18
+#define OMAP4_KBD_IRQENABLE 0x1C
+#define OMAP4_KBD_WAKEUPENABLE 0x20
+#define OMAP4_KBD_PENDING 0x24
+#define OMAP4_KBD_CTRL 0x28
+#define OMAP4_KBD_DEBOUNCINGTIME 0x2C
+#define OMAP4_KBD_LONGKEYTIME 0x30
+#define OMAP4_KBD_TIMEOUT 0x34
+#define OMAP4_KBD_STATEMACHINE 0x38
+#define OMAP4_KBD_ROWINPUTS 0x3C
+#define OMAP4_KBD_COLUMNOUTPUTS 0x40
+#define OMAP4_KBD_FULLCODE31_0 0x44
+#define OMAP4_KBD_FULLCODE63_32 0x48
+
+/* OMAP4 bit definitions */
+#define OMAP4_DEF_IRQENABLE_EVENTEN (1 << 0)
+#define OMAP4_DEF_IRQENABLE_LONGKEY (1 << 1)
+#define OMAP4_DEF_IRQENABLE_TIMEOUTEN (1 << 2)
+#define OMAP4_DEF_WUP_EVENT_ENA (1 << 0)
+#define OMAP4_DEF_WUP_LONG_KEY_ENA (1 << 1)
+#define OMAP4_DEF_CTRL_NOSOFTMODE (1 << 1)
+#define OMAP4_DEF_CTRLPTVVALUE (1 << 2)
+#define OMAP4_DEF_CTRLPTV (1 << 1)
+
+/* OMAP4 values */
+#define OMAP4_VAL_IRQDISABLE 0x00
+#define OMAP4_VAL_DEBOUNCINGTIME 0x07
+#define OMAP4_VAL_FUNCTIONALCFG 0x1E
+
+#define OMAP4_MASK_IRQSTATUSDISABLE 0xFFFF
+
+struct omap4_keypad {
+ struct input_dev *input;
+
+ void __iomem *base;
+ int irq;
+
+ unsigned int rows;
+ unsigned int cols;
+ unsigned int row_shift;
+ unsigned char key_state[8];
+ unsigned short keymap[];
+};
+
+/* Interrupt handler */
+static irqreturn_t omap4_keypad_interrupt(int irq, void *dev_id)
+{
+ struct omap4_keypad *keypad_data = dev_id;
+ struct input_dev *input_dev = keypad_data->input;
+ unsigned char key_state[ARRAY_SIZE(keypad_data->key_state)];
+ unsigned int col, row, code, changed;
+ u32 *new_state = (u32 *) key_state;
+
+ /* Disable interrupts */
+ __raw_writel(OMAP4_VAL_IRQDISABLE,
+ keypad_data->base + OMAP4_KBD_IRQENABLE);
+
+ *new_state = __raw_readl(keypad_data->base + OMAP4_KBD_FULLCODE31_0);
+ *(new_state + 1) = __raw_readl(keypad_data->base
+ + OMAP4_KBD_FULLCODE63_32);
+
+ for (row = 0; row < keypad_data->rows; row++) {
+ changed = key_state[row] ^ keypad_data->key_state[row];
+ if (!changed)
+ continue;
+
+ for (col = 0; col < keypad_data->cols; col++) {
+ if (changed & (1 << col)) {
+ code = MATRIX_SCAN_CODE(row, col,
+ keypad_data->row_shift);
+ input_event(input_dev, EV_MSC, MSC_SCAN, code);
+ input_report_key(input_dev,
+ keypad_data->keymap[code],
+ key_state[row] & (1 << col));
+ }
+ }
+ }
+
+ input_sync(input_dev);
+
+ memcpy(keypad_data->key_state, key_state,
+ sizeof(keypad_data->key_state));
+
+ /* clear pending interrupts */
+ __raw_writel(__raw_readl(keypad_data->base + OMAP4_KBD_IRQSTATUS),
+ keypad_data->base + OMAP4_KBD_IRQSTATUS);
+
+ /* enable interrupts */
+ __raw_writel(OMAP4_DEF_IRQENABLE_EVENTEN | OMAP4_DEF_IRQENABLE_LONGKEY,
+ keypad_data->base + OMAP4_KBD_IRQENABLE);
+
+ return IRQ_HANDLED;
+}
+
+static int omap4_keypad_open(struct input_dev *input)
+{
+ struct omap4_keypad *keypad_data = input_get_drvdata(input);
+
+ pm_runtime_get_sync(input->dev.parent);
+
+ disable_irq(keypad_data->irq);
+
+ __raw_writel(OMAP4_VAL_FUNCTIONALCFG,
+ keypad_data->base + OMAP4_KBD_CTRL);
+ __raw_writel(OMAP4_VAL_DEBOUNCINGTIME,
+ keypad_data->base + OMAP4_KBD_DEBOUNCINGTIME);
+ __raw_writel(OMAP4_VAL_IRQDISABLE,
+ keypad_data->base + OMAP4_KBD_IRQSTATUS);
+ __raw_writel(OMAP4_DEF_IRQENABLE_EVENTEN | OMAP4_DEF_IRQENABLE_LONGKEY,
+ keypad_data->base + OMAP4_KBD_IRQENABLE);
+ __raw_writel(OMAP4_DEF_WUP_EVENT_ENA | OMAP4_DEF_WUP_LONG_KEY_ENA,
+ keypad_data->base + OMAP4_KBD_WAKEUPENABLE);
+
+ enable_irq(keypad_data->irq);
+
+ return 0;
+}
+
+static void omap4_keypad_close(struct input_dev *input)
+{
+ struct omap4_keypad *keypad_data = input_get_drvdata(input);
+
+ disable_irq(keypad_data->irq);
+
+ /* Disable interrupts */
+ __raw_writel(OMAP4_VAL_IRQDISABLE,
+ keypad_data->base + OMAP4_KBD_IRQENABLE);
+
+ /* clear pending interrupts */
+ __raw_writel(__raw_readl(keypad_data->base + OMAP4_KBD_IRQSTATUS),
+ keypad_data->base + OMAP4_KBD_IRQSTATUS);
+
+ enable_irq(keypad_data->irq);
+
+ pm_runtime_put_sync(input->dev.parent);
+}
+
+static int __devinit omap4_keypad_probe(struct platform_device *pdev)
+{
+ const struct omap4_keypad_platform_data *pdata;
+ struct omap4_keypad *keypad_data;
+ struct input_dev *input_dev;
+ struct resource *res;
+ resource_size_t size;
+ unsigned int row_shift, max_keys;
+ int irq;
+ int error;
+
+ /* platform data */
+ pdata = pdev->dev.platform_data;
+ if (!pdata) {
+ dev_err(&pdev->dev, "no platform data defined\n");
+ return -EINVAL;
+ }
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!res) {
+ dev_err(&pdev->dev, "no base address specified\n");
+ return -EINVAL;
+ }
+
+ irq = platform_get_irq(pdev, 0);
+ if (!irq) {
+ dev_err(&pdev->dev, "no keyboard irq assigned\n");
+ return -EINVAL;
+ }
+
+ if (!pdata->keymap_data) {
+ dev_err(&pdev->dev, "no keymap data defined\n");
+ return -EINVAL;
+ }
+
+ row_shift = get_count_order(pdata->cols);
+ max_keys = pdata->rows << row_shift;
+
+ keypad_data = kzalloc(sizeof(struct omap4_keypad) +
+ max_keys * sizeof(keypad_data->keymap[0]),
+ GFP_KERNEL);
+ if (!keypad_data) {
+ dev_err(&pdev->dev, "keypad_data memory allocation failed\n");
+ return -ENOMEM;
+ }
+
+ size = resource_size(res);
+
+ res = request_mem_region(res->start, size, pdev->name);
+ if (!res) {
+ dev_err(&pdev->dev, "can't request mem region\n");
+ error = -EBUSY;
+ goto err_free_keypad;
+ }
+
+ keypad_data->base = ioremap(res->start, resource_size(res));
+ if (!keypad_data->base) {
+ dev_err(&pdev->dev, "can't ioremap mem resource\n");
+ error = -ENOMEM;
+ goto err_release_mem;
+ }
+
+ keypad_data->irq = irq;
+ keypad_data->row_shift = row_shift;
+ keypad_data->rows = pdata->rows;
+ keypad_data->cols = pdata->cols;
+
+ /* input device allocation */
+ keypad_data->input = input_dev = input_allocate_device();
+ if (!input_dev) {
+ error = -ENOMEM;
+ goto err_unmap;
+ }
+
+ input_dev->name = pdev->name;
+ input_dev->dev.parent = &pdev->dev;
+ input_dev->id.bustype = BUS_HOST;
+ input_dev->id.vendor = 0x0001;
+ input_dev->id.product = 0x0001;
+ input_dev->id.version = 0x0001;
+
+ input_dev->open = omap4_keypad_open;
+ input_dev->close = omap4_keypad_close;
+
+ input_dev->keycode = keypad_data->keymap;
+ input_dev->keycodesize = sizeof(keypad_data->keymap[0]);
+ input_dev->keycodemax = max_keys;
+
+ __set_bit(EV_KEY, input_dev->evbit);
+ __set_bit(EV_REP, input_dev->evbit);
+
+ input_set_capability(input_dev, EV_MSC, MSC_SCAN);
+
+ input_set_drvdata(input_dev, keypad_data);
+
+ matrix_keypad_build_keymap(pdata->keymap_data, row_shift,
+ input_dev->keycode, input_dev->keybit);
+
+ error = request_irq(keypad_data->irq, omap4_keypad_interrupt,
+ IRQF_TRIGGER_RISING,
+ "omap4-keypad", keypad_data);
+ if (error) {
+ dev_err(&pdev->dev, "failed to register interrupt\n");
+ goto err_free_input;
+ }
+
+ pm_runtime_enable(&pdev->dev);
+
+ error = input_register_device(keypad_data->input);
+ if (error < 0) {
+ dev_err(&pdev->dev, "failed to register input device\n");
+ goto err_pm_disable;
+ }
+
+ platform_set_drvdata(pdev, keypad_data);
+ return 0;
+
+err_pm_disable:
+ pm_runtime_disable(&pdev->dev);
+ free_irq(keypad_data->irq, keypad_data);
+err_free_input:
+ input_free_device(input_dev);
+err_unmap:
+ iounmap(keypad_data->base);
+err_release_mem:
+ release_mem_region(res->start, size);
+err_free_keypad:
+ kfree(keypad_data);
+ return error;
+}
+
+static int __devexit omap4_keypad_remove(struct platform_device *pdev)
+{
+ struct omap4_keypad *keypad_data = platform_get_drvdata(pdev);
+ struct resource *res;
+
+ free_irq(keypad_data->irq, keypad_data);
+
+ pm_runtime_disable(&pdev->dev);
+
+ input_unregister_device(keypad_data->input);
+
+ iounmap(keypad_data->base);
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ release_mem_region(res->start, resource_size(res));
+
+ kfree(keypad_data);
+ platform_set_drvdata(pdev, NULL);
+
+ return 0;
+}
+
+static struct platform_driver omap4_keypad_driver = {
+ .probe = omap4_keypad_probe,
+ .remove = __devexit_p(omap4_keypad_remove),
+ .driver = {
+ .name = "omap4-keypad",
+ .owner = THIS_MODULE,
+ },
+};
+
+static int __init omap4_keypad_init(void)
+{
+ return platform_driver_register(&omap4_keypad_driver);
+}
+module_init(omap4_keypad_init);
+
+static void __exit omap4_keypad_exit(void)
+{
+ platform_driver_unregister(&omap4_keypad_driver);
+}
+module_exit(omap4_keypad_exit);
+
+MODULE_AUTHOR("Texas Instruments");
+MODULE_DESCRIPTION("OMAP4 Keypad Driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:omap4-keypad");
diff --git a/drivers/input/keyboard/opencores-kbd.c b/drivers/input/keyboard/opencores-kbd.c
new file mode 100644
index 0000000..1f1a556
--- /dev/null
+++ b/drivers/input/keyboard/opencores-kbd.c
@@ -0,0 +1,181 @@
+/*
+ * OpenCores Keyboard Controller Driver
+ * http://www.opencores.org/project,keyboardcontroller
+ *
+ * Copyright 2007-2009 HV Sistemas S.L.
+ *
+ * Licensed under the GPL-2 or later.
+ */
+
+#include <linux/input.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/ioport.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+
+struct opencores_kbd {
+ struct input_dev *input;
+ struct resource *addr_res;
+ void __iomem *addr;
+ int irq;
+ unsigned short keycodes[128];
+};
+
+static irqreturn_t opencores_kbd_isr(int irq, void *dev_id)
+{
+ struct opencores_kbd *opencores_kbd = dev_id;
+ struct input_dev *input = opencores_kbd->input;
+ unsigned char c;
+
+ c = readb(opencores_kbd->addr);
+ input_report_key(input, c & 0x7f, c & 0x80 ? 0 : 1);
+ input_sync(input);
+
+ return IRQ_HANDLED;
+}
+
+static int __devinit opencores_kbd_probe(struct platform_device *pdev)
+{
+ struct input_dev *input;
+ struct opencores_kbd *opencores_kbd;
+ struct resource *res;
+ int irq, i, error;
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!res) {
+ dev_err(&pdev->dev, "missing board memory resource\n");
+ return -EINVAL;
+ }
+
+ irq = platform_get_irq(pdev, 0);
+ if (irq < 0) {
+ dev_err(&pdev->dev, "missing board IRQ resource\n");
+ return -EINVAL;
+ }
+
+ opencores_kbd = kzalloc(sizeof(*opencores_kbd), GFP_KERNEL);
+ input = input_allocate_device();
+ if (!opencores_kbd || !input) {
+ dev_err(&pdev->dev, "failed to allocate device structures\n");
+ error = -ENOMEM;
+ goto err_free_mem;
+ }
+
+ opencores_kbd->addr_res = res;
+ res = request_mem_region(res->start, resource_size(res), pdev->name);
+ if (!res) {
+ dev_err(&pdev->dev, "failed to request I/O memory\n");
+ error = -EBUSY;
+ goto err_free_mem;
+ }
+
+ opencores_kbd->addr = ioremap(res->start, resource_size(res));
+ if (!opencores_kbd->addr) {
+ dev_err(&pdev->dev, "failed to remap I/O memory\n");
+ error = -ENXIO;
+ goto err_rel_mem;
+ }
+
+ opencores_kbd->input = input;
+ opencores_kbd->irq = irq;
+
+ input->name = pdev->name;
+ input->phys = "opencores-kbd/input0";
+ input->dev.parent = &pdev->dev;
+
+ input_set_drvdata(input, opencores_kbd);
+
+ input->id.bustype = BUS_HOST;
+ input->id.vendor = 0x0001;
+ input->id.product = 0x0001;
+ input->id.version = 0x0100;
+
+ input->keycode = opencores_kbd->keycodes;
+ input->keycodesize = sizeof(opencores_kbd->keycodes[0]);
+ input->keycodemax = ARRAY_SIZE(opencores_kbd->keycodes);
+
+ __set_bit(EV_KEY, input->evbit);
+
+ for (i = 0; i < ARRAY_SIZE(opencores_kbd->keycodes); i++) {
+ /*
+ * OpenCores controller happens to have scancodes match
+ * our KEY_* definitions.
+ */
+ opencores_kbd->keycodes[i] = i;
+ __set_bit(opencores_kbd->keycodes[i], input->keybit);
+ }
+ __clear_bit(KEY_RESERVED, input->keybit);
+
+ error = request_irq(irq, &opencores_kbd_isr,
+ IRQF_TRIGGER_RISING, pdev->name, opencores_kbd);
+ if (error) {
+ dev_err(&pdev->dev, "unable to claim irq %d\n", irq);
+ goto err_unmap_mem;
+ }
+
+ error = input_register_device(input);
+ if (error) {
+ dev_err(&pdev->dev, "unable to register input device\n");
+ goto err_free_irq;
+ }
+
+ platform_set_drvdata(pdev, opencores_kbd);
+
+ return 0;
+
+ err_free_irq:
+ free_irq(irq, opencores_kbd);
+ err_unmap_mem:
+ iounmap(opencores_kbd->addr);
+ err_rel_mem:
+ release_mem_region(res->start, resource_size(res));
+ err_free_mem:
+ input_free_device(input);
+ kfree(opencores_kbd);
+
+ return error;
+}
+
+static int __devexit opencores_kbd_remove(struct platform_device *pdev)
+{
+ struct opencores_kbd *opencores_kbd = platform_get_drvdata(pdev);
+
+ free_irq(opencores_kbd->irq, opencores_kbd);
+
+ iounmap(opencores_kbd->addr);
+ release_mem_region(opencores_kbd->addr_res->start,
+ resource_size(opencores_kbd->addr_res));
+ input_unregister_device(opencores_kbd->input);
+ kfree(opencores_kbd);
+
+ platform_set_drvdata(pdev, NULL);
+
+ return 0;
+}
+
+static struct platform_driver opencores_kbd_device_driver = {
+ .probe = opencores_kbd_probe,
+ .remove = __devexit_p(opencores_kbd_remove),
+ .driver = {
+ .name = "opencores-kbd",
+ },
+};
+
+static int __init opencores_kbd_init(void)
+{
+ return platform_driver_register(&opencores_kbd_device_driver);
+}
+module_init(opencores_kbd_init);
+
+static void __exit opencores_kbd_exit(void)
+{
+ platform_driver_unregister(&opencores_kbd_device_driver);
+}
+module_exit(opencores_kbd_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Javier Herrero <jherrero@hvsistemas.es>");
+MODULE_DESCRIPTION("Keyboard driver for OpenCores Keyboard Controller");
diff --git a/drivers/input/keyboard/pmic8xxx-keypad.c b/drivers/input/keyboard/pmic8xxx-keypad.c
new file mode 100644
index 0000000..e7cc51d
--- /dev/null
+++ b/drivers/input/keyboard/pmic8xxx-keypad.c
@@ -0,0 +1,800 @@
+/* Copyright (c) 2009-2011, Code Aurora Forum. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/kernel.h>
+#include <linux/interrupt.h>
+#include <linux/slab.h>
+#include <linux/input.h>
+#include <linux/bitops.h>
+#include <linux/delay.h>
+#include <linux/mutex.h>
+
+#include <linux/mfd/pm8xxx/core.h>
+#include <linux/mfd/pm8xxx/gpio.h>
+#include <linux/input/pmic8xxx-keypad.h>
+
+#define PM8XXX_MAX_ROWS 18
+#define PM8XXX_MAX_COLS 8
+#define PM8XXX_ROW_SHIFT 3
+#define PM8XXX_MATRIX_MAX_SIZE (PM8XXX_MAX_ROWS * PM8XXX_MAX_COLS)
+
+#define PM8XXX_MIN_ROWS 5
+#define PM8XXX_MIN_COLS 5
+
+#define MAX_SCAN_DELAY 128
+#define MIN_SCAN_DELAY 1
+
+/* in nanoseconds */
+#define MAX_ROW_HOLD_DELAY 122000
+#define MIN_ROW_HOLD_DELAY 30500
+
+#define MAX_DEBOUNCE_TIME 20
+#define MIN_DEBOUNCE_TIME 5
+
+#define KEYP_CTRL 0x148
+
+#define KEYP_CTRL_EVNTS BIT(0)
+#define KEYP_CTRL_EVNTS_MASK 0x3
+
+#define KEYP_CTRL_SCAN_COLS_SHIFT 5
+#define KEYP_CTRL_SCAN_COLS_MIN 5
+#define KEYP_CTRL_SCAN_COLS_BITS 0x3
+
+#define KEYP_CTRL_SCAN_ROWS_SHIFT 2
+#define KEYP_CTRL_SCAN_ROWS_MIN 5
+#define KEYP_CTRL_SCAN_ROWS_BITS 0x7
+
+#define KEYP_CTRL_KEYP_EN BIT(7)
+
+#define KEYP_SCAN 0x149
+
+#define KEYP_SCAN_READ_STATE BIT(0)
+#define KEYP_SCAN_DBOUNCE_SHIFT 1
+#define KEYP_SCAN_PAUSE_SHIFT 3
+#define KEYP_SCAN_ROW_HOLD_SHIFT 6
+
+#define KEYP_TEST 0x14A
+
+#define KEYP_TEST_CLEAR_RECENT_SCAN BIT(6)
+#define KEYP_TEST_CLEAR_OLD_SCAN BIT(5)
+#define KEYP_TEST_READ_RESET BIT(4)
+#define KEYP_TEST_DTEST_EN BIT(3)
+#define KEYP_TEST_ABORT_READ BIT(0)
+
+#define KEYP_TEST_DBG_SELECT_SHIFT 1
+
+/* bits of these registers represent
+ * '0' for key press
+ * '1' for key release
+ */
+#define KEYP_RECENT_DATA 0x14B
+#define KEYP_OLD_DATA 0x14C
+
+#define KEYP_CLOCK_FREQ 32768
+
+/**
+ * struct pmic8xxx_kp - internal keypad data structure
+ * @pdata - keypad platform data pointer
+ * @input - input device pointer for keypad
+ * @key_sense_irq - key press/release irq number
+ * @key_stuck_irq - key stuck notification irq number
+ * @keycodes - array to hold the key codes
+ * @dev - parent device pointer
+ * @keystate - present key press/release state
+ * @stuckstate - present state when key stuck irq
+ * @ctrl_reg - control register value
+ */
+struct pmic8xxx_kp {
+ const struct pm8xxx_keypad_platform_data *pdata;
+ struct input_dev *input;
+ int key_sense_irq;
+ int key_stuck_irq;
+
+ unsigned short keycodes[PM8XXX_MATRIX_MAX_SIZE];
+
+ struct device *dev;
+ u16 keystate[PM8XXX_MAX_ROWS];
+ u16 stuckstate[PM8XXX_MAX_ROWS];
+
+ u8 ctrl_reg;
+};
+
+static int pmic8xxx_kp_write_u8(struct pmic8xxx_kp *kp,
+ u8 data, u16 reg)
+{
+ int rc;
+
+ rc = pm8xxx_writeb(kp->dev->parent, reg, data);
+ return rc;
+}
+
+static int pmic8xxx_kp_read(struct pmic8xxx_kp *kp,
+ u8 *data, u16 reg, unsigned num_bytes)
+{
+ int rc;
+
+ rc = pm8xxx_read_buf(kp->dev->parent, reg, data, num_bytes);
+ return rc;
+}
+
+static int pmic8xxx_kp_read_u8(struct pmic8xxx_kp *kp,
+ u8 *data, u16 reg)
+{
+ int rc;
+
+ rc = pmic8xxx_kp_read(kp, data, reg, 1);
+ return rc;
+}
+
+static u8 pmic8xxx_col_state(struct pmic8xxx_kp *kp, u8 col)
+{
+ /* all keys pressed on that particular row? */
+ if (col == 0x00)
+ return 1 << kp->pdata->num_cols;
+ else
+ return col & ((1 << kp->pdata->num_cols) - 1);
+}
+
+/*
+ * Synchronous read protocol for RevB0 onwards:
+ *
+ * 1. Write '1' to ReadState bit in KEYP_SCAN register
+ * 2. Wait 2*32KHz clocks, so that HW can successfully enter read mode
+ * synchronously
+ * 3. Read rows in old array first if events are more than one
+ * 4. Read rows in recent array
+ * 5. Wait 4*32KHz clocks
+ * 6. Write '0' to ReadState bit of KEYP_SCAN register so that hw can
+ * synchronously exit read mode.
+ */
+static int pmic8xxx_chk_sync_read(struct pmic8xxx_kp *kp)
+{
+ int rc;
+ u8 scan_val;
+
+ rc = pmic8xxx_kp_read_u8(kp, &scan_val, KEYP_SCAN);
+ if (rc < 0) {
+ dev_err(kp->dev, "Error reading KEYP_SCAN reg, rc=%d\n", rc);
+ return rc;
+ }
+
+ scan_val |= 0x1;
+
+ rc = pmic8xxx_kp_write_u8(kp, scan_val, KEYP_SCAN);
+ if (rc < 0) {
+ dev_err(kp->dev, "Error writing KEYP_SCAN reg, rc=%d\n", rc);
+ return rc;
+ }
+
+ /* 2 * 32KHz clocks */
+ udelay((2 * DIV_ROUND_UP(USEC_PER_SEC, KEYP_CLOCK_FREQ)) + 1);
+
+ return rc;
+}
+
+static int pmic8xxx_kp_read_data(struct pmic8xxx_kp *kp, u16 *state,
+ u16 data_reg, int read_rows)
+{
+ int rc, row;
+ u8 new_data[PM8XXX_MAX_ROWS];
+
+ rc = pmic8xxx_kp_read(kp, new_data, data_reg, read_rows);
+ if (rc)
+ return rc;
+
+ for (row = 0; row < kp->pdata->num_rows; row++) {
+ dev_dbg(kp->dev, "new_data[%d] = %d\n", row,
+ new_data[row]);
+ state[row] = pmic8xxx_col_state(kp, new_data[row]);
+ }
+
+ return rc;
+}
+
+static int pmic8xxx_kp_read_matrix(struct pmic8xxx_kp *kp, u16 *new_state,
+ u16 *old_state)
+{
+ int rc, read_rows;
+ u8 scan_val;
+
+ if (kp->pdata->num_rows < PM8XXX_MIN_ROWS)
+ read_rows = PM8XXX_MIN_ROWS;
+ else
+ read_rows = kp->pdata->num_rows;
+
+ pmic8xxx_chk_sync_read(kp);
+
+ if (old_state) {
+ rc = pmic8xxx_kp_read_data(kp, old_state, KEYP_OLD_DATA,
+ read_rows);
+ if (rc < 0) {
+ dev_err(kp->dev,
+ "Error reading KEYP_OLD_DATA, rc=%d\n", rc);
+ return rc;
+ }
+ }
+
+ rc = pmic8xxx_kp_read_data(kp, new_state, KEYP_RECENT_DATA,
+ read_rows);
+ if (rc < 0) {
+ dev_err(kp->dev,
+ "Error reading KEYP_RECENT_DATA, rc=%d\n", rc);
+ return rc;
+ }
+
+ /* 4 * 32KHz clocks */
+ udelay((4 * DIV_ROUND_UP(USEC_PER_SEC, KEYP_CLOCK_FREQ)) + 1);
+
+ rc = pmic8xxx_kp_read_u8(kp, &scan_val, KEYP_SCAN);
+ if (rc < 0) {
+ dev_err(kp->dev, "Error reading KEYP_SCAN reg, rc=%d\n", rc);
+ return rc;
+ }
+
+ scan_val &= 0xFE;
+ rc = pmic8xxx_kp_write_u8(kp, scan_val, KEYP_SCAN);
+ if (rc < 0)
+ dev_err(kp->dev, "Error writing KEYP_SCAN reg, rc=%d\n", rc);
+
+ return rc;
+}
+
+static void __pmic8xxx_kp_scan_matrix(struct pmic8xxx_kp *kp, u16 *new_state,
+ u16 *old_state)
+{
+ int row, col, code;
+
+ for (row = 0; row < kp->pdata->num_rows; row++) {
+ int bits_changed = new_state[row] ^ old_state[row];
+
+ if (!bits_changed)
+ continue;
+
+ for (col = 0; col < kp->pdata->num_cols; col++) {
+ if (!(bits_changed & (1 << col)))
+ continue;
+
+ dev_dbg(kp->dev, "key [%d:%d] %s\n", row, col,
+ !(new_state[row] & (1 << col)) ?
+ "pressed" : "released");
+
+ code = MATRIX_SCAN_CODE(row, col, PM8XXX_ROW_SHIFT);
+
+ input_event(kp->input, EV_MSC, MSC_SCAN, code);
+ input_report_key(kp->input,
+ kp->keycodes[code],
+ !(new_state[row] & (1 << col)));
+
+ input_sync(kp->input);
+ }
+ }
+}
+
+static bool pmic8xxx_detect_ghost_keys(struct pmic8xxx_kp *kp, u16 *new_state)
+{
+ int row, found_first = -1;
+ u16 check, row_state;
+
+ check = 0;
+ for (row = 0; row < kp->pdata->num_rows; row++) {
+ row_state = (~new_state[row]) &
+ ((1 << kp->pdata->num_cols) - 1);
+
+ if (hweight16(row_state) > 1) {
+ if (found_first == -1)
+ found_first = row;
+ if (check & row_state) {
+ dev_dbg(kp->dev, "detected ghost key on row[%d]"
+ " and row[%d]\n", found_first, row);
+ return true;
+ }
+ }
+ check |= row_state;
+ }
+ return false;
+}
+
+static int pmic8xxx_kp_scan_matrix(struct pmic8xxx_kp *kp, unsigned int events)
+{
+ u16 new_state[PM8XXX_MAX_ROWS];
+ u16 old_state[PM8XXX_MAX_ROWS];
+ int rc;
+
+ switch (events) {
+ case 0x1:
+ rc = pmic8xxx_kp_read_matrix(kp, new_state, NULL);
+ if (rc < 0)
+ return rc;
+
+ /* detecting ghost key is not an error */
+ if (pmic8xxx_detect_ghost_keys(kp, new_state))
+ return 0;
+ __pmic8xxx_kp_scan_matrix(kp, new_state, kp->keystate);
+ memcpy(kp->keystate, new_state, sizeof(new_state));
+ break;
+ case 0x3: /* two events - eventcounter is gray-coded */
+ rc = pmic8xxx_kp_read_matrix(kp, new_state, old_state);
+ if (rc < 0)
+ return rc;
+
+ __pmic8xxx_kp_scan_matrix(kp, old_state, kp->keystate);
+ __pmic8xxx_kp_scan_matrix(kp, new_state, old_state);
+ memcpy(kp->keystate, new_state, sizeof(new_state));
+ break;
+ case 0x2:
+ dev_dbg(kp->dev, "Some key events were lost\n");
+ rc = pmic8xxx_kp_read_matrix(kp, new_state, old_state);
+ if (rc < 0)
+ return rc;
+ __pmic8xxx_kp_scan_matrix(kp, old_state, kp->keystate);
+ __pmic8xxx_kp_scan_matrix(kp, new_state, old_state);
+ memcpy(kp->keystate, new_state, sizeof(new_state));
+ break;
+ default:
+ rc = -EINVAL;
+ }
+ return rc;
+}
+
+/*
+ * NOTE: We are reading recent and old data registers blindly
+ * whenever key-stuck interrupt happens, because events counter doesn't
+ * get updated when this interrupt happens due to key stuck doesn't get
+ * considered as key state change.
+ *
+ * We are not using old data register contents after they are being read
+ * because it might report the key which was pressed before the key being stuck
+ * as stuck key because it's pressed status is stored in the old data
+ * register.
+ */
+static irqreturn_t pmic8xxx_kp_stuck_irq(int irq, void *data)
+{
+ u16 new_state[PM8XXX_MAX_ROWS];
+ u16 old_state[PM8XXX_MAX_ROWS];
+ int rc;
+ struct pmic8xxx_kp *kp = data;
+
+ rc = pmic8xxx_kp_read_matrix(kp, new_state, old_state);
+ if (rc < 0) {
+ dev_err(kp->dev, "failed to read keypad matrix\n");
+ return IRQ_HANDLED;
+ }
+
+ __pmic8xxx_kp_scan_matrix(kp, new_state, kp->stuckstate);
+
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t pmic8xxx_kp_irq(int irq, void *data)
+{
+ struct pmic8xxx_kp *kp = data;
+ u8 ctrl_val, events;
+ int rc;
+
+ rc = pmic8xxx_kp_read(kp, &ctrl_val, KEYP_CTRL, 1);
+ if (rc < 0) {
+ dev_err(kp->dev, "failed to read keyp_ctrl register\n");
+ return IRQ_HANDLED;
+ }
+
+ events = ctrl_val & KEYP_CTRL_EVNTS_MASK;
+
+ rc = pmic8xxx_kp_scan_matrix(kp, events);
+ if (rc < 0)
+ dev_err(kp->dev, "failed to scan matrix\n");
+
+ return IRQ_HANDLED;
+}
+
+static int __devinit pmic8xxx_kpd_init(struct pmic8xxx_kp *kp)
+{
+ int bits, rc, cycles;
+ u8 scan_val = 0, ctrl_val = 0;
+ static const u8 row_bits[] = {
+ 0, 1, 2, 3, 4, 4, 5, 5, 6, 6, 6, 7, 7, 7,
+ };
+
+ /* Find column bits */
+ if (kp->pdata->num_cols < KEYP_CTRL_SCAN_COLS_MIN)
+ bits = 0;
+ else
+ bits = kp->pdata->num_cols - KEYP_CTRL_SCAN_COLS_MIN;
+ ctrl_val = (bits & KEYP_CTRL_SCAN_COLS_BITS) <<
+ KEYP_CTRL_SCAN_COLS_SHIFT;
+
+ /* Find row bits */
+ if (kp->pdata->num_rows < KEYP_CTRL_SCAN_ROWS_MIN)
+ bits = 0;
+ else
+ bits = row_bits[kp->pdata->num_rows - KEYP_CTRL_SCAN_ROWS_MIN];
+
+ ctrl_val |= (bits << KEYP_CTRL_SCAN_ROWS_SHIFT);
+
+ rc = pmic8xxx_kp_write_u8(kp, ctrl_val, KEYP_CTRL);
+ if (rc < 0) {
+ dev_err(kp->dev, "Error writing KEYP_CTRL reg, rc=%d\n", rc);
+ return rc;
+ }
+
+ bits = (kp->pdata->debounce_ms / 5) - 1;
+
+ scan_val |= (bits << KEYP_SCAN_DBOUNCE_SHIFT);
+
+ bits = fls(kp->pdata->scan_delay_ms) - 1;
+ scan_val |= (bits << KEYP_SCAN_PAUSE_SHIFT);
+
+ /* Row hold time is a multiple of 32KHz cycles. */
+ cycles = (kp->pdata->row_hold_ns * KEYP_CLOCK_FREQ) / NSEC_PER_SEC;
+
+ scan_val |= (cycles << KEYP_SCAN_ROW_HOLD_SHIFT);
+
+ rc = pmic8xxx_kp_write_u8(kp, scan_val, KEYP_SCAN);
+ if (rc)
+ dev_err(kp->dev, "Error writing KEYP_SCAN reg, rc=%d\n", rc);
+
+ return rc;
+
+}
+
+static int __devinit pmic8xxx_kp_config_gpio(int gpio_start, int num_gpios,
+ struct pmic8xxx_kp *kp, struct pm_gpio *gpio_config)
+{
+ int rc, i;
+
+ if (gpio_start < 0 || num_gpios < 0)
+ return -EINVAL;
+
+ for (i = 0; i < num_gpios; i++) {
+ rc = pm8xxx_gpio_config(gpio_start + i, gpio_config);
+ if (rc) {
+ dev_err(kp->dev, "%s: FAIL pm8xxx_gpio_config():"
+ "for PM GPIO [%d] rc=%d.\n",
+ __func__, gpio_start + i, rc);
+ return rc;
+ }
+ }
+
+ return 0;
+}
+
+static int pmic8xxx_kp_enable(struct pmic8xxx_kp *kp)
+{
+ int rc;
+
+ kp->ctrl_reg |= KEYP_CTRL_KEYP_EN;
+
+ rc = pmic8xxx_kp_write_u8(kp, kp->ctrl_reg, KEYP_CTRL);
+ if (rc < 0)
+ dev_err(kp->dev, "Error writing KEYP_CTRL reg, rc=%d\n", rc);
+
+ return rc;
+}
+
+static int pmic8xxx_kp_disable(struct pmic8xxx_kp *kp)
+{
+ int rc;
+
+ kp->ctrl_reg &= ~KEYP_CTRL_KEYP_EN;
+
+ rc = pmic8xxx_kp_write_u8(kp, kp->ctrl_reg, KEYP_CTRL);
+ if (rc < 0)
+ return rc;
+
+ return rc;
+}
+
+static int pmic8xxx_kp_open(struct input_dev *dev)
+{
+ struct pmic8xxx_kp *kp = input_get_drvdata(dev);
+
+ return pmic8xxx_kp_enable(kp);
+}
+
+static void pmic8xxx_kp_close(struct input_dev *dev)
+{
+ struct pmic8xxx_kp *kp = input_get_drvdata(dev);
+
+ pmic8xxx_kp_disable(kp);
+}
+
+/*
+ * keypad controller should be initialized in the following sequence
+ * only, otherwise it might get into FSM stuck state.
+ *
+ * - Initialize keypad control parameters, like no. of rows, columns,
+ * timing values etc.,
+ * - configure rows and column gpios pull up/down.
+ * - set irq edge type.
+ * - enable the keypad controller.
+ */
+static int __devinit pmic8xxx_kp_probe(struct platform_device *pdev)
+{
+ const struct pm8xxx_keypad_platform_data *pdata =
+ dev_get_platdata(&pdev->dev);
+ const struct matrix_keymap_data *keymap_data;
+ struct pmic8xxx_kp *kp;
+ int rc;
+ u8 ctrl_val;
+
+ struct pm_gpio kypd_drv = {
+ .direction = PM_GPIO_DIR_OUT,
+ .output_buffer = PM_GPIO_OUT_BUF_OPEN_DRAIN,
+ .output_value = 0,
+ .pull = PM_GPIO_PULL_NO,
+ .vin_sel = PM_GPIO_VIN_S3,
+ .out_strength = PM_GPIO_STRENGTH_LOW,
+ .function = PM_GPIO_FUNC_1,
+ .inv_int_pol = 1,
+ };
+
+ struct pm_gpio kypd_sns = {
+ .direction = PM_GPIO_DIR_IN,
+ .pull = PM_GPIO_PULL_UP_31P5,
+ .vin_sel = PM_GPIO_VIN_S3,
+ .out_strength = PM_GPIO_STRENGTH_NO,
+ .function = PM_GPIO_FUNC_NORMAL,
+ .inv_int_pol = 1,
+ };
+
+
+ if (!pdata || !pdata->num_cols || !pdata->num_rows ||
+ pdata->num_cols > PM8XXX_MAX_COLS ||
+ pdata->num_rows > PM8XXX_MAX_ROWS ||
+ pdata->num_cols < PM8XXX_MIN_COLS) {
+ dev_err(&pdev->dev, "invalid platform data\n");
+ return -EINVAL;
+ }
+
+ if (!pdata->scan_delay_ms ||
+ pdata->scan_delay_ms > MAX_SCAN_DELAY ||
+ pdata->scan_delay_ms < MIN_SCAN_DELAY ||
+ !is_power_of_2(pdata->scan_delay_ms)) {
+ dev_err(&pdev->dev, "invalid keypad scan time supplied\n");
+ return -EINVAL;
+ }
+
+ if (!pdata->row_hold_ns ||
+ pdata->row_hold_ns > MAX_ROW_HOLD_DELAY ||
+ pdata->row_hold_ns < MIN_ROW_HOLD_DELAY ||
+ ((pdata->row_hold_ns % MIN_ROW_HOLD_DELAY) != 0)) {
+ dev_err(&pdev->dev, "invalid keypad row hold time supplied\n");
+ return -EINVAL;
+ }
+
+ if (!pdata->debounce_ms ||
+ ((pdata->debounce_ms % 5) != 0) ||
+ pdata->debounce_ms > MAX_DEBOUNCE_TIME ||
+ pdata->debounce_ms < MIN_DEBOUNCE_TIME) {
+ dev_err(&pdev->dev, "invalid debounce time supplied\n");
+ return -EINVAL;
+ }
+
+ keymap_data = pdata->keymap_data;
+ if (!keymap_data) {
+ dev_err(&pdev->dev, "no keymap data supplied\n");
+ return -EINVAL;
+ }
+
+ kp = kzalloc(sizeof(*kp), GFP_KERNEL);
+ if (!kp)
+ return -ENOMEM;
+
+ platform_set_drvdata(pdev, kp);
+
+ kp->pdata = pdata;
+ kp->dev = &pdev->dev;
+
+ kp->input = input_allocate_device();
+ if (!kp->input) {
+ dev_err(&pdev->dev, "unable to allocate input device\n");
+ rc = -ENOMEM;
+ goto err_alloc_device;
+ }
+
+ kp->key_sense_irq = platform_get_irq(pdev, 0);
+ if (kp->key_sense_irq < 0) {
+ dev_err(&pdev->dev, "unable to get keypad sense irq\n");
+ rc = -ENXIO;
+ goto err_get_irq;
+ }
+
+ kp->key_stuck_irq = platform_get_irq(pdev, 1);
+ if (kp->key_stuck_irq < 0) {
+ dev_err(&pdev->dev, "unable to get keypad stuck irq\n");
+ rc = -ENXIO;
+ goto err_get_irq;
+ }
+
+ kp->input->name = pdata->input_name ? : "PMIC8XXX keypad";
+ kp->input->phys = pdata->input_phys_device ? : "pmic8xxx_keypad/input0";
+
+ kp->input->dev.parent = &pdev->dev;
+
+ kp->input->id.bustype = BUS_I2C;
+ kp->input->id.version = 0x0001;
+ kp->input->id.product = 0x0001;
+ kp->input->id.vendor = 0x0001;
+
+ kp->input->evbit[0] = BIT_MASK(EV_KEY);
+
+ if (pdata->rep)
+ __set_bit(EV_REP, kp->input->evbit);
+
+ kp->input->keycode = kp->keycodes;
+ kp->input->keycodemax = PM8XXX_MATRIX_MAX_SIZE;
+ kp->input->keycodesize = sizeof(kp->keycodes);
+ kp->input->open = pmic8xxx_kp_open;
+ kp->input->close = pmic8xxx_kp_close;
+
+ matrix_keypad_build_keymap(keymap_data, PM8XXX_ROW_SHIFT,
+ kp->input->keycode, kp->input->keybit);
+
+ input_set_capability(kp->input, EV_MSC, MSC_SCAN);
+ input_set_drvdata(kp->input, kp);
+
+ /* initialize keypad state */
+ memset(kp->keystate, 0xff, sizeof(kp->keystate));
+ memset(kp->stuckstate, 0xff, sizeof(kp->stuckstate));
+
+ rc = pmic8xxx_kpd_init(kp);
+ if (rc < 0) {
+ dev_err(&pdev->dev, "unable to initialize keypad controller\n");
+ goto err_get_irq;
+ }
+
+ rc = pmic8xxx_kp_config_gpio(pdata->cols_gpio_start,
+ pdata->num_cols, kp, &kypd_sns);
+ if (rc < 0) {
+ dev_err(&pdev->dev, "unable to configure keypad sense lines\n");
+ goto err_gpio_config;
+ }
+
+ rc = pmic8xxx_kp_config_gpio(pdata->rows_gpio_start,
+ pdata->num_rows, kp, &kypd_drv);
+ if (rc < 0) {
+ dev_err(&pdev->dev, "unable to configure keypad drive lines\n");
+ goto err_gpio_config;
+ }
+
+ rc = request_any_context_irq(kp->key_sense_irq, pmic8xxx_kp_irq,
+ IRQF_TRIGGER_RISING, "pmic-keypad", kp);
+ if (rc < 0) {
+ dev_err(&pdev->dev, "failed to request keypad sense irq\n");
+ goto err_get_irq;
+ }
+
+ rc = request_any_context_irq(kp->key_stuck_irq, pmic8xxx_kp_stuck_irq,
+ IRQF_TRIGGER_RISING, "pmic-keypad-stuck", kp);
+ if (rc < 0) {
+ dev_err(&pdev->dev, "failed to request keypad stuck irq\n");
+ goto err_req_stuck_irq;
+ }
+
+ rc = pmic8xxx_kp_read_u8(kp, &ctrl_val, KEYP_CTRL);
+ if (rc < 0) {
+ dev_err(&pdev->dev, "failed to read KEYP_CTRL register\n");
+ goto err_pmic_reg_read;
+ }
+
+ kp->ctrl_reg = ctrl_val;
+
+ rc = input_register_device(kp->input);
+ if (rc < 0) {
+ dev_err(&pdev->dev, "unable to register keypad input device\n");
+ goto err_pmic_reg_read;
+ }
+
+ device_init_wakeup(&pdev->dev, pdata->wakeup);
+
+ return 0;
+
+err_pmic_reg_read:
+ free_irq(kp->key_stuck_irq, kp);
+err_req_stuck_irq:
+ free_irq(kp->key_sense_irq, kp);
+err_gpio_config:
+err_get_irq:
+ input_free_device(kp->input);
+err_alloc_device:
+ platform_set_drvdata(pdev, NULL);
+ kfree(kp);
+ return rc;
+}
+
+static int __devexit pmic8xxx_kp_remove(struct platform_device *pdev)
+{
+ struct pmic8xxx_kp *kp = platform_get_drvdata(pdev);
+
+ device_init_wakeup(&pdev->dev, 0);
+ free_irq(kp->key_stuck_irq, kp);
+ free_irq(kp->key_sense_irq, kp);
+ input_unregister_device(kp->input);
+ kfree(kp);
+
+ platform_set_drvdata(pdev, NULL);
+ return 0;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int pmic8xxx_kp_suspend(struct device *dev)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ struct pmic8xxx_kp *kp = platform_get_drvdata(pdev);
+ struct input_dev *input_dev = kp->input;
+
+ if (device_may_wakeup(dev)) {
+ enable_irq_wake(kp->key_sense_irq);
+ } else {
+ mutex_lock(&input_dev->mutex);
+
+ if (input_dev->users)
+ pmic8xxx_kp_disable(kp);
+
+ mutex_unlock(&input_dev->mutex);
+ }
+
+ return 0;
+}
+
+static int pmic8xxx_kp_resume(struct device *dev)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ struct pmic8xxx_kp *kp = platform_get_drvdata(pdev);
+ struct input_dev *input_dev = kp->input;
+
+ if (device_may_wakeup(dev)) {
+ disable_irq_wake(kp->key_sense_irq);
+ } else {
+ mutex_lock(&input_dev->mutex);
+
+ if (input_dev->users)
+ pmic8xxx_kp_enable(kp);
+
+ mutex_unlock(&input_dev->mutex);
+ }
+
+ return 0;
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(pm8xxx_kp_pm_ops,
+ pmic8xxx_kp_suspend, pmic8xxx_kp_resume);
+
+static struct platform_driver pmic8xxx_kp_driver = {
+ .probe = pmic8xxx_kp_probe,
+ .remove = __devexit_p(pmic8xxx_kp_remove),
+ .driver = {
+ .name = PM8XXX_KEYPAD_DEV_NAME,
+ .owner = THIS_MODULE,
+ .pm = &pm8xxx_kp_pm_ops,
+ },
+};
+
+static int __init pmic8xxx_kp_init(void)
+{
+ return platform_driver_register(&pmic8xxx_kp_driver);
+}
+module_init(pmic8xxx_kp_init);
+
+static void __exit pmic8xxx_kp_exit(void)
+{
+ platform_driver_unregister(&pmic8xxx_kp_driver);
+}
+module_exit(pmic8xxx_kp_exit);
+
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("PMIC8XXX keypad driver");
+MODULE_VERSION("1.0");
+MODULE_ALIAS("platform:pmic8xxx_keypad");
+MODULE_AUTHOR("Trilok Soni <tsoni@codeaurora.org>");
diff --git a/drivers/input/keyboard/pxa27x_keypad.c b/drivers/input/keyboard/pxa27x_keypad.c
new file mode 100644
index 0000000..eca6ae6
--- /dev/null
+++ b/drivers/input/keyboard/pxa27x_keypad.c
@@ -0,0 +1,620 @@
+/*
+ * linux/drivers/input/keyboard/pxa27x_keypad.c
+ *
+ * Driver for the pxa27x matrix keyboard controller.
+ *
+ * Created: Feb 22, 2007
+ * Author: Rodolfo Giometti <giometti@linux.it>
+ *
+ * Based on a previous implementations by Kevin O'Connor
+ * <kevin_at_koconnor.net> and Alex Osborne <bobofdoom@gmail.com> and
+ * on some suggestions by Nicolas Pitre <nico@fluxnic.net>.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/input.h>
+#include <linux/device.h>
+#include <linux/platform_device.h>
+#include <linux/clk.h>
+#include <linux/err.h>
+#include <linux/input/matrix_keypad.h>
+#include <linux/slab.h>
+
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+
+#include <mach/hardware.h>
+#include <plat/pxa27x_keypad.h>
+/*
+ * Keypad Controller registers
+ */
+#define KPC 0x0000 /* Keypad Control register */
+#define KPDK 0x0008 /* Keypad Direct Key register */
+#define KPREC 0x0010 /* Keypad Rotary Encoder register */
+#define KPMK 0x0018 /* Keypad Matrix Key register */
+#define KPAS 0x0020 /* Keypad Automatic Scan register */
+
+/* Keypad Automatic Scan Multiple Key Presser register 0-3 */
+#define KPASMKP0 0x0028
+#define KPASMKP1 0x0030
+#define KPASMKP2 0x0038
+#define KPASMKP3 0x0040
+#define KPKDI 0x0048
+
+/* bit definitions */
+#define KPC_MKRN(n) ((((n) - 1) & 0x7) << 26) /* matrix key row number */
+#define KPC_MKCN(n) ((((n) - 1) & 0x7) << 23) /* matrix key column number */
+#define KPC_DKN(n) ((((n) - 1) & 0x7) << 6) /* direct key number */
+
+#define KPC_AS (0x1 << 30) /* Automatic Scan bit */
+#define KPC_ASACT (0x1 << 29) /* Automatic Scan on Activity */
+#define KPC_MI (0x1 << 22) /* Matrix interrupt bit */
+#define KPC_IMKP (0x1 << 21) /* Ignore Multiple Key Press */
+
+#define KPC_MS(n) (0x1 << (13 + (n))) /* Matrix scan line 'n' */
+#define KPC_MS_ALL (0xff << 13)
+
+#define KPC_ME (0x1 << 12) /* Matrix Keypad Enable */
+#define KPC_MIE (0x1 << 11) /* Matrix Interrupt Enable */
+#define KPC_DK_DEB_SEL (0x1 << 9) /* Direct Keypad Debounce Select */
+#define KPC_DI (0x1 << 5) /* Direct key interrupt bit */
+#define KPC_RE_ZERO_DEB (0x1 << 4) /* Rotary Encoder Zero Debounce */
+#define KPC_REE1 (0x1 << 3) /* Rotary Encoder1 Enable */
+#define KPC_REE0 (0x1 << 2) /* Rotary Encoder0 Enable */
+#define KPC_DE (0x1 << 1) /* Direct Keypad Enable */
+#define KPC_DIE (0x1 << 0) /* Direct Keypad interrupt Enable */
+
+#define KPDK_DKP (0x1 << 31)
+#define KPDK_DK(n) ((n) & 0xff)
+
+#define KPREC_OF1 (0x1 << 31)
+#define kPREC_UF1 (0x1 << 30)
+#define KPREC_OF0 (0x1 << 15)
+#define KPREC_UF0 (0x1 << 14)
+
+#define KPREC_RECOUNT0(n) ((n) & 0xff)
+#define KPREC_RECOUNT1(n) (((n) >> 16) & 0xff)
+
+#define KPMK_MKP (0x1 << 31)
+#define KPAS_SO (0x1 << 31)
+#define KPASMKPx_SO (0x1 << 31)
+
+#define KPAS_MUKP(n) (((n) >> 26) & 0x1f)
+#define KPAS_RP(n) (((n) >> 4) & 0xf)
+#define KPAS_CP(n) ((n) & 0xf)
+
+#define KPASMKP_MKC_MASK (0xff)
+
+#define keypad_readl(off) __raw_readl(keypad->mmio_base + (off))
+#define keypad_writel(off, v) __raw_writel((v), keypad->mmio_base + (off))
+
+#define MAX_MATRIX_KEY_NUM (MAX_MATRIX_KEY_ROWS * MAX_MATRIX_KEY_COLS)
+#define MAX_KEYPAD_KEYS (MAX_MATRIX_KEY_NUM + MAX_DIRECT_KEY_NUM)
+
+struct pxa27x_keypad {
+ struct pxa27x_keypad_platform_data *pdata;
+
+ struct clk *clk;
+ struct input_dev *input_dev;
+ void __iomem *mmio_base;
+
+ int irq;
+
+ unsigned short keycodes[MAX_KEYPAD_KEYS];
+ int rotary_rel_code[2];
+
+ /* state row bits of each column scan */
+ uint32_t matrix_key_state[MAX_MATRIX_KEY_COLS];
+ uint32_t direct_key_state;
+
+ unsigned int direct_key_mask;
+};
+
+static void pxa27x_keypad_build_keycode(struct pxa27x_keypad *keypad)
+{
+ struct pxa27x_keypad_platform_data *pdata = keypad->pdata;
+ struct input_dev *input_dev = keypad->input_dev;
+ unsigned short keycode;
+ int i;
+
+ for (i = 0; i < pdata->matrix_key_map_size; i++) {
+ unsigned int key = pdata->matrix_key_map[i];
+ unsigned int row = KEY_ROW(key);
+ unsigned int col = KEY_COL(key);
+ unsigned int scancode = MATRIX_SCAN_CODE(row, col,
+ MATRIX_ROW_SHIFT);
+
+ keycode = KEY_VAL(key);
+ keypad->keycodes[scancode] = keycode;
+ __set_bit(keycode, input_dev->keybit);
+ }
+
+ for (i = 0; i < pdata->direct_key_num; i++) {
+ keycode = pdata->direct_key_map[i];
+ keypad->keycodes[MAX_MATRIX_KEY_NUM + i] = keycode;
+ __set_bit(keycode, input_dev->keybit);
+ }
+
+ if (pdata->enable_rotary0) {
+ if (pdata->rotary0_up_key && pdata->rotary0_down_key) {
+ keycode = pdata->rotary0_up_key;
+ keypad->keycodes[MAX_MATRIX_KEY_NUM + 0] = keycode;
+ __set_bit(keycode, input_dev->keybit);
+
+ keycode = pdata->rotary0_down_key;
+ keypad->keycodes[MAX_MATRIX_KEY_NUM + 1] = keycode;
+ __set_bit(keycode, input_dev->keybit);
+
+ keypad->rotary_rel_code[0] = -1;
+ } else {
+ keypad->rotary_rel_code[0] = pdata->rotary0_rel_code;
+ __set_bit(pdata->rotary0_rel_code, input_dev->relbit);
+ }
+ }
+
+ if (pdata->enable_rotary1) {
+ if (pdata->rotary1_up_key && pdata->rotary1_down_key) {
+ keycode = pdata->rotary1_up_key;
+ keypad->keycodes[MAX_MATRIX_KEY_NUM + 2] = keycode;
+ __set_bit(keycode, input_dev->keybit);
+
+ keycode = pdata->rotary1_down_key;
+ keypad->keycodes[MAX_MATRIX_KEY_NUM + 3] = keycode;
+ __set_bit(keycode, input_dev->keybit);
+
+ keypad->rotary_rel_code[1] = -1;
+ } else {
+ keypad->rotary_rel_code[1] = pdata->rotary1_rel_code;
+ __set_bit(pdata->rotary1_rel_code, input_dev->relbit);
+ }
+ }
+
+ __clear_bit(KEY_RESERVED, input_dev->keybit);
+}
+
+static void pxa27x_keypad_scan_matrix(struct pxa27x_keypad *keypad)
+{
+ struct pxa27x_keypad_platform_data *pdata = keypad->pdata;
+ struct input_dev *input_dev = keypad->input_dev;
+ int row, col, num_keys_pressed = 0;
+ uint32_t new_state[MAX_MATRIX_KEY_COLS];
+ uint32_t kpas = keypad_readl(KPAS);
+
+ num_keys_pressed = KPAS_MUKP(kpas);
+
+ memset(new_state, 0, sizeof(new_state));
+
+ if (num_keys_pressed == 0)
+ goto scan;
+
+ if (num_keys_pressed == 1) {
+ col = KPAS_CP(kpas);
+ row = KPAS_RP(kpas);
+
+ /* if invalid row/col, treat as no key pressed */
+ if (col >= pdata->matrix_key_cols ||
+ row >= pdata->matrix_key_rows)
+ goto scan;
+
+ new_state[col] = (1 << row);
+ goto scan;
+ }
+
+ if (num_keys_pressed > 1) {
+ uint32_t kpasmkp0 = keypad_readl(KPASMKP0);
+ uint32_t kpasmkp1 = keypad_readl(KPASMKP1);
+ uint32_t kpasmkp2 = keypad_readl(KPASMKP2);
+ uint32_t kpasmkp3 = keypad_readl(KPASMKP3);
+
+ new_state[0] = kpasmkp0 & KPASMKP_MKC_MASK;
+ new_state[1] = (kpasmkp0 >> 16) & KPASMKP_MKC_MASK;
+ new_state[2] = kpasmkp1 & KPASMKP_MKC_MASK;
+ new_state[3] = (kpasmkp1 >> 16) & KPASMKP_MKC_MASK;
+ new_state[4] = kpasmkp2 & KPASMKP_MKC_MASK;
+ new_state[5] = (kpasmkp2 >> 16) & KPASMKP_MKC_MASK;
+ new_state[6] = kpasmkp3 & KPASMKP_MKC_MASK;
+ new_state[7] = (kpasmkp3 >> 16) & KPASMKP_MKC_MASK;
+ }
+scan:
+ for (col = 0; col < pdata->matrix_key_cols; col++) {
+ uint32_t bits_changed;
+ int code;
+
+ bits_changed = keypad->matrix_key_state[col] ^ new_state[col];
+ if (bits_changed == 0)
+ continue;
+
+ for (row = 0; row < pdata->matrix_key_rows; row++) {
+ if ((bits_changed & (1 << row)) == 0)
+ continue;
+
+ code = MATRIX_SCAN_CODE(row, col, MATRIX_ROW_SHIFT);
+ input_event(input_dev, EV_MSC, MSC_SCAN, code);
+ input_report_key(input_dev, keypad->keycodes[code],
+ new_state[col] & (1 << row));
+ }
+ }
+ input_sync(input_dev);
+ memcpy(keypad->matrix_key_state, new_state, sizeof(new_state));
+}
+
+#define DEFAULT_KPREC (0x007f007f)
+
+static inline int rotary_delta(uint32_t kprec)
+{
+ if (kprec & KPREC_OF0)
+ return (kprec & 0xff) + 0x7f;
+ else if (kprec & KPREC_UF0)
+ return (kprec & 0xff) - 0x7f - 0xff;
+ else
+ return (kprec & 0xff) - 0x7f;
+}
+
+static void report_rotary_event(struct pxa27x_keypad *keypad, int r, int delta)
+{
+ struct input_dev *dev = keypad->input_dev;
+
+ if (delta == 0)
+ return;
+
+ if (keypad->rotary_rel_code[r] == -1) {
+ int code = MAX_MATRIX_KEY_NUM + 2 * r + (delta > 0 ? 0 : 1);
+ unsigned char keycode = keypad->keycodes[code];
+
+ /* simulate a press-n-release */
+ input_event(dev, EV_MSC, MSC_SCAN, code);
+ input_report_key(dev, keycode, 1);
+ input_sync(dev);
+ input_event(dev, EV_MSC, MSC_SCAN, code);
+ input_report_key(dev, keycode, 0);
+ input_sync(dev);
+ } else {
+ input_report_rel(dev, keypad->rotary_rel_code[r], delta);
+ input_sync(dev);
+ }
+}
+
+static void pxa27x_keypad_scan_rotary(struct pxa27x_keypad *keypad)
+{
+ struct pxa27x_keypad_platform_data *pdata = keypad->pdata;
+ uint32_t kprec;
+
+ /* read and reset to default count value */
+ kprec = keypad_readl(KPREC);
+ keypad_writel(KPREC, DEFAULT_KPREC);
+
+ if (pdata->enable_rotary0)
+ report_rotary_event(keypad, 0, rotary_delta(kprec));
+
+ if (pdata->enable_rotary1)
+ report_rotary_event(keypad, 1, rotary_delta(kprec >> 16));
+}
+
+static void pxa27x_keypad_scan_direct(struct pxa27x_keypad *keypad)
+{
+ struct pxa27x_keypad_platform_data *pdata = keypad->pdata;
+ struct input_dev *input_dev = keypad->input_dev;
+ unsigned int new_state;
+ uint32_t kpdk, bits_changed;
+ int i;
+
+ kpdk = keypad_readl(KPDK);
+
+ if (pdata->enable_rotary0 || pdata->enable_rotary1)
+ pxa27x_keypad_scan_rotary(keypad);
+
+ new_state = KPDK_DK(kpdk) & keypad->direct_key_mask;
+ bits_changed = keypad->direct_key_state ^ new_state;
+
+ if (bits_changed == 0)
+ return;
+
+ for (i = 0; i < pdata->direct_key_num; i++) {
+ if (bits_changed & (1 << i)) {
+ int code = MAX_MATRIX_KEY_NUM + i;
+
+ input_event(input_dev, EV_MSC, MSC_SCAN, code);
+ input_report_key(input_dev, keypad->keycodes[code],
+ new_state & (1 << i));
+ }
+ }
+ input_sync(input_dev);
+ keypad->direct_key_state = new_state;
+}
+
+static void clear_wakeup_event(struct pxa27x_keypad *keypad)
+{
+ struct pxa27x_keypad_platform_data *pdata = keypad->pdata;
+
+ if (pdata->clear_wakeup_event)
+ (pdata->clear_wakeup_event)();
+}
+
+static irqreturn_t pxa27x_keypad_irq_handler(int irq, void *dev_id)
+{
+ struct pxa27x_keypad *keypad = dev_id;
+ unsigned long kpc = keypad_readl(KPC);
+
+ clear_wakeup_event(keypad);
+
+ if (kpc & KPC_DI)
+ pxa27x_keypad_scan_direct(keypad);
+
+ if (kpc & KPC_MI)
+ pxa27x_keypad_scan_matrix(keypad);
+
+ return IRQ_HANDLED;
+}
+
+static void pxa27x_keypad_config(struct pxa27x_keypad *keypad)
+{
+ struct pxa27x_keypad_platform_data *pdata = keypad->pdata;
+ unsigned int mask = 0, direct_key_num = 0;
+ unsigned long kpc = 0;
+
+ /* enable matrix keys with automatic scan */
+ if (pdata->matrix_key_rows && pdata->matrix_key_cols) {
+ kpc |= KPC_ASACT | KPC_MIE | KPC_ME | KPC_MS_ALL;
+ kpc |= KPC_MKRN(pdata->matrix_key_rows) |
+ KPC_MKCN(pdata->matrix_key_cols);
+ }
+
+ /* enable rotary key, debounce interval same as direct keys */
+ if (pdata->enable_rotary0) {
+ mask |= 0x03;
+ direct_key_num = 2;
+ kpc |= KPC_REE0;
+ }
+
+ if (pdata->enable_rotary1) {
+ mask |= 0x0c;
+ direct_key_num = 4;
+ kpc |= KPC_REE1;
+ }
+
+ if (pdata->direct_key_num > direct_key_num)
+ direct_key_num = pdata->direct_key_num;
+
+ keypad->direct_key_mask = ((2 << direct_key_num) - 1) & ~mask;
+
+ /* enable direct key */
+ if (direct_key_num)
+ kpc |= KPC_DE | KPC_DIE | KPC_DKN(direct_key_num);
+
+ keypad_writel(KPC, kpc | KPC_RE_ZERO_DEB);
+ keypad_writel(KPREC, DEFAULT_KPREC);
+ keypad_writel(KPKDI, pdata->debounce_interval);
+}
+
+static int pxa27x_keypad_open(struct input_dev *dev)
+{
+ struct pxa27x_keypad *keypad = input_get_drvdata(dev);
+
+ /* Enable unit clock */
+ clk_enable(keypad->clk);
+ pxa27x_keypad_config(keypad);
+
+ return 0;
+}
+
+static void pxa27x_keypad_close(struct input_dev *dev)
+{
+ struct pxa27x_keypad *keypad = input_get_drvdata(dev);
+
+ /* Disable clock unit */
+ clk_disable(keypad->clk);
+}
+
+#ifdef CONFIG_PM
+static int pxa27x_keypad_suspend(struct device *dev)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ struct pxa27x_keypad *keypad = platform_get_drvdata(pdev);
+
+ clk_disable(keypad->clk);
+
+ if (device_may_wakeup(&pdev->dev))
+ enable_irq_wake(keypad->irq);
+
+ return 0;
+}
+
+static int pxa27x_keypad_resume(struct device *dev)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ struct pxa27x_keypad *keypad = platform_get_drvdata(pdev);
+ struct input_dev *input_dev = keypad->input_dev;
+
+ if (device_may_wakeup(&pdev->dev))
+ disable_irq_wake(keypad->irq);
+
+ mutex_lock(&input_dev->mutex);
+
+ if (input_dev->users) {
+ /* Enable unit clock */
+ clk_enable(keypad->clk);
+ pxa27x_keypad_config(keypad);
+ }
+
+ mutex_unlock(&input_dev->mutex);
+
+ return 0;
+}
+
+static const struct dev_pm_ops pxa27x_keypad_pm_ops = {
+ .suspend = pxa27x_keypad_suspend,
+ .resume = pxa27x_keypad_resume,
+};
+#endif
+
+static int __devinit pxa27x_keypad_probe(struct platform_device *pdev)
+{
+ struct pxa27x_keypad_platform_data *pdata = pdev->dev.platform_data;
+ struct pxa27x_keypad *keypad;
+ struct input_dev *input_dev;
+ struct resource *res;
+ int irq, error;
+
+ if (pdata == NULL) {
+ dev_err(&pdev->dev, "no platform data defined\n");
+ return -EINVAL;
+ }
+
+ irq = platform_get_irq(pdev, 0);
+ if (irq < 0) {
+ dev_err(&pdev->dev, "failed to get keypad irq\n");
+ return -ENXIO;
+ }
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (res == NULL) {
+ dev_err(&pdev->dev, "failed to get I/O memory\n");
+ return -ENXIO;
+ }
+
+ keypad = kzalloc(sizeof(struct pxa27x_keypad), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!keypad || !input_dev) {
+ dev_err(&pdev->dev, "failed to allocate memory\n");
+ error = -ENOMEM;
+ goto failed_free;
+ }
+
+ keypad->pdata = pdata;
+ keypad->input_dev = input_dev;
+ keypad->irq = irq;
+
+ res = request_mem_region(res->start, resource_size(res), pdev->name);
+ if (res == NULL) {
+ dev_err(&pdev->dev, "failed to request I/O memory\n");
+ error = -EBUSY;
+ goto failed_free;
+ }
+
+ keypad->mmio_base = ioremap(res->start, resource_size(res));
+ if (keypad->mmio_base == NULL) {
+ dev_err(&pdev->dev, "failed to remap I/O memory\n");
+ error = -ENXIO;
+ goto failed_free_mem;
+ }
+
+ keypad->clk = clk_get(&pdev->dev, NULL);
+ if (IS_ERR(keypad->clk)) {
+ dev_err(&pdev->dev, "failed to get keypad clock\n");
+ error = PTR_ERR(keypad->clk);
+ goto failed_free_io;
+ }
+
+ input_dev->name = pdev->name;
+ input_dev->id.bustype = BUS_HOST;
+ input_dev->open = pxa27x_keypad_open;
+ input_dev->close = pxa27x_keypad_close;
+ input_dev->dev.parent = &pdev->dev;
+
+ input_dev->keycode = keypad->keycodes;
+ input_dev->keycodesize = sizeof(keypad->keycodes[0]);
+ input_dev->keycodemax = ARRAY_SIZE(keypad->keycodes);
+
+ input_set_drvdata(input_dev, keypad);
+
+ input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP);
+ input_set_capability(input_dev, EV_MSC, MSC_SCAN);
+
+ pxa27x_keypad_build_keycode(keypad);
+
+ if ((pdata->enable_rotary0 && keypad->rotary_rel_code[0] != -1) ||
+ (pdata->enable_rotary1 && keypad->rotary_rel_code[1] != -1)) {
+ input_dev->evbit[0] |= BIT_MASK(EV_REL);
+ }
+
+ error = request_irq(irq, pxa27x_keypad_irq_handler, 0,
+ pdev->name, keypad);
+ if (error) {
+ dev_err(&pdev->dev, "failed to request IRQ\n");
+ goto failed_put_clk;
+ }
+
+ /* Register the input device */
+ error = input_register_device(input_dev);
+ if (error) {
+ dev_err(&pdev->dev, "failed to register input device\n");
+ goto failed_free_irq;
+ }
+
+ platform_set_drvdata(pdev, keypad);
+ device_init_wakeup(&pdev->dev, 1);
+
+ return 0;
+
+failed_free_irq:
+ free_irq(irq, pdev);
+failed_put_clk:
+ clk_put(keypad->clk);
+failed_free_io:
+ iounmap(keypad->mmio_base);
+failed_free_mem:
+ release_mem_region(res->start, resource_size(res));
+failed_free:
+ input_free_device(input_dev);
+ kfree(keypad);
+ return error;
+}
+
+static int __devexit pxa27x_keypad_remove(struct platform_device *pdev)
+{
+ struct pxa27x_keypad *keypad = platform_get_drvdata(pdev);
+ struct resource *res;
+
+ free_irq(keypad->irq, pdev);
+ clk_put(keypad->clk);
+
+ input_unregister_device(keypad->input_dev);
+ iounmap(keypad->mmio_base);
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ release_mem_region(res->start, resource_size(res));
+
+ platform_set_drvdata(pdev, NULL);
+ kfree(keypad);
+
+ return 0;
+}
+
+/* work with hotplug and coldplug */
+MODULE_ALIAS("platform:pxa27x-keypad");
+
+static struct platform_driver pxa27x_keypad_driver = {
+ .probe = pxa27x_keypad_probe,
+ .remove = __devexit_p(pxa27x_keypad_remove),
+ .driver = {
+ .name = "pxa27x-keypad",
+ .owner = THIS_MODULE,
+#ifdef CONFIG_PM
+ .pm = &pxa27x_keypad_pm_ops,
+#endif
+ },
+};
+
+static int __init pxa27x_keypad_init(void)
+{
+ return platform_driver_register(&pxa27x_keypad_driver);
+}
+
+static void __exit pxa27x_keypad_exit(void)
+{
+ platform_driver_unregister(&pxa27x_keypad_driver);
+}
+
+module_init(pxa27x_keypad_init);
+module_exit(pxa27x_keypad_exit);
+
+MODULE_DESCRIPTION("PXA27x Keypad Controller Driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/input/keyboard/pxa930_rotary.c b/drivers/input/keyboard/pxa930_rotary.c
new file mode 100644
index 0000000..35451bf
--- /dev/null
+++ b/drivers/input/keyboard/pxa930_rotary.c
@@ -0,0 +1,213 @@
+/*
+ * Driver for the enhanced rotary controller on pxa930 and pxa935
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/input.h>
+#include <linux/platform_device.h>
+#include <linux/io.h>
+#include <linux/slab.h>
+
+#include <mach/pxa930_rotary.h>
+
+#define SBCR (0x04)
+#define ERCR (0x0c)
+
+#define SBCR_ERSB (1 << 5)
+
+struct pxa930_rotary {
+ struct input_dev *input_dev;
+ void __iomem *mmio_base;
+ int last_ercr;
+
+ struct pxa930_rotary_platform_data *pdata;
+};
+
+static void clear_sbcr(struct pxa930_rotary *r)
+{
+ uint32_t sbcr = __raw_readl(r->mmio_base + SBCR);
+
+ __raw_writel(sbcr | SBCR_ERSB, r->mmio_base + SBCR);
+ __raw_writel(sbcr & ~SBCR_ERSB, r->mmio_base + SBCR);
+}
+
+static irqreturn_t rotary_irq(int irq, void *dev_id)
+{
+ struct pxa930_rotary *r = dev_id;
+ struct pxa930_rotary_platform_data *pdata = r->pdata;
+ int ercr, delta, key;
+
+ ercr = __raw_readl(r->mmio_base + ERCR) & 0xf;
+ clear_sbcr(r);
+
+ delta = ercr - r->last_ercr;
+ if (delta == 0)
+ return IRQ_HANDLED;
+
+ r->last_ercr = ercr;
+
+ if (pdata->up_key && pdata->down_key) {
+ key = (delta > 0) ? pdata->up_key : pdata->down_key;
+ input_report_key(r->input_dev, key, 1);
+ input_sync(r->input_dev);
+ input_report_key(r->input_dev, key, 0);
+ } else
+ input_report_rel(r->input_dev, pdata->rel_code, delta);
+
+ input_sync(r->input_dev);
+
+ return IRQ_HANDLED;
+}
+
+static int pxa930_rotary_open(struct input_dev *dev)
+{
+ struct pxa930_rotary *r = input_get_drvdata(dev);
+
+ clear_sbcr(r);
+
+ return 0;
+}
+
+static void pxa930_rotary_close(struct input_dev *dev)
+{
+ struct pxa930_rotary *r = input_get_drvdata(dev);
+
+ clear_sbcr(r);
+}
+
+static int __devinit pxa930_rotary_probe(struct platform_device *pdev)
+{
+ struct pxa930_rotary_platform_data *pdata = pdev->dev.platform_data;
+ struct pxa930_rotary *r;
+ struct input_dev *input_dev;
+ struct resource *res;
+ int irq;
+ int err;
+
+ irq = platform_get_irq(pdev, 0);
+ if (irq < 0) {
+ dev_err(&pdev->dev, "no irq for rotary controller\n");
+ return -ENXIO;
+ }
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!res) {
+ dev_err(&pdev->dev, "no I/O memory defined\n");
+ return -ENXIO;
+ }
+
+ if (!pdata) {
+ dev_err(&pdev->dev, "no platform data defined\n");
+ return -EINVAL;
+ }
+
+ r = kzalloc(sizeof(struct pxa930_rotary), GFP_KERNEL);
+ if (!r)
+ return -ENOMEM;
+
+ r->mmio_base = ioremap_nocache(res->start, resource_size(res));
+ if (r->mmio_base == NULL) {
+ dev_err(&pdev->dev, "failed to remap IO memory\n");
+ err = -ENXIO;
+ goto failed_free;
+ }
+
+ r->pdata = pdata;
+ platform_set_drvdata(pdev, r);
+
+ /* allocate and register the input device */
+ input_dev = input_allocate_device();
+ if (!input_dev) {
+ dev_err(&pdev->dev, "failed to allocate input device\n");
+ err = -ENOMEM;
+ goto failed_free_io;
+ }
+
+ input_dev->name = pdev->name;
+ input_dev->id.bustype = BUS_HOST;
+ input_dev->open = pxa930_rotary_open;
+ input_dev->close = pxa930_rotary_close;
+ input_dev->dev.parent = &pdev->dev;
+
+ if (pdata->up_key && pdata->down_key) {
+ __set_bit(pdata->up_key, input_dev->keybit);
+ __set_bit(pdata->down_key, input_dev->keybit);
+ __set_bit(EV_KEY, input_dev->evbit);
+ } else {
+ __set_bit(pdata->rel_code, input_dev->relbit);
+ __set_bit(EV_REL, input_dev->evbit);
+ }
+
+ r->input_dev = input_dev;
+ input_set_drvdata(input_dev, r);
+
+ err = request_irq(irq, rotary_irq, 0,
+ "enhanced rotary", r);
+ if (err) {
+ dev_err(&pdev->dev, "failed to request IRQ\n");
+ goto failed_free_input;
+ }
+
+ err = input_register_device(input_dev);
+ if (err) {
+ dev_err(&pdev->dev, "failed to register input device\n");
+ goto failed_free_irq;
+ }
+
+ return 0;
+
+failed_free_irq:
+ free_irq(irq, r);
+failed_free_input:
+ input_free_device(input_dev);
+failed_free_io:
+ iounmap(r->mmio_base);
+failed_free:
+ kfree(r);
+ return err;
+}
+
+static int __devexit pxa930_rotary_remove(struct platform_device *pdev)
+{
+ struct pxa930_rotary *r = platform_get_drvdata(pdev);
+
+ free_irq(platform_get_irq(pdev, 0), r);
+ input_unregister_device(r->input_dev);
+ iounmap(r->mmio_base);
+ platform_set_drvdata(pdev, NULL);
+ kfree(r);
+
+ return 0;
+}
+
+static struct platform_driver pxa930_rotary_driver = {
+ .driver = {
+ .name = "pxa930-rotary",
+ .owner = THIS_MODULE,
+ },
+ .probe = pxa930_rotary_probe,
+ .remove = __devexit_p(pxa930_rotary_remove),
+};
+
+static int __init pxa930_rotary_init(void)
+{
+ return platform_driver_register(&pxa930_rotary_driver);
+}
+module_init(pxa930_rotary_init);
+
+static void __exit pxa930_rotary_exit(void)
+{
+ platform_driver_unregister(&pxa930_rotary_driver);
+}
+module_exit(pxa930_rotary_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("Driver for PXA93x Enhanced Rotary Controller");
+MODULE_AUTHOR("Yao Yong <yaoyong@marvell.com>");
diff --git a/drivers/input/keyboard/qt1070.c b/drivers/input/keyboard/qt1070.c
new file mode 100644
index 0000000..b21bf5b
--- /dev/null
+++ b/drivers/input/keyboard/qt1070.c
@@ -0,0 +1,275 @@
+/*
+ * Atmel AT42QT1070 QTouch Sensor Controller
+ *
+ * Copyright (C) 2011 Atmel
+ *
+ * Authors: Bo Shen <voice.shen@atmel.com>
+ *
+ * Base on AT42QT2160 driver by:
+ * Raphael Derosso Pereira <raphaelpereira@gmail.com>
+ * Copyright (C) 2009
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/i2c.h>
+#include <linux/input.h>
+#include <linux/slab.h>
+#include <linux/irq.h>
+#include <linux/interrupt.h>
+#include <linux/jiffies.h>
+#include <linux/delay.h>
+
+/* Address for each register */
+#define CHIP_ID 0x00
+#define QT1070_CHIP_ID 0x2E
+
+#define FW_VERSION 0x01
+#define QT1070_FW_VERSION 0x15
+
+#define DET_STATUS 0x02
+
+#define KEY_STATUS 0x03
+
+/* Calibrate */
+#define CALIBRATE_CMD 0x38
+#define QT1070_CAL_TIME 200
+
+/* Reset */
+#define RESET 0x39
+#define QT1070_RESET_TIME 255
+
+/* AT42QT1070 support up to 7 keys */
+static const unsigned short qt1070_key2code[] = {
+ KEY_0, KEY_1, KEY_2, KEY_3,
+ KEY_4, KEY_5, KEY_6,
+};
+
+struct qt1070_data {
+ struct i2c_client *client;
+ struct input_dev *input;
+ unsigned int irq;
+ unsigned short keycodes[ARRAY_SIZE(qt1070_key2code)];
+ u8 last_keys;
+};
+
+static int qt1070_read(struct i2c_client *client, u8 reg)
+{
+ int ret;
+
+ ret = i2c_smbus_read_byte_data(client, reg);
+ if (ret < 0)
+ dev_err(&client->dev,
+ "can not read register, returned %d\n", ret);
+
+ return ret;
+}
+
+static int qt1070_write(struct i2c_client *client, u8 reg, u8 data)
+{
+ int ret;
+
+ ret = i2c_smbus_write_byte_data(client, reg, data);
+ if (ret < 0)
+ dev_err(&client->dev,
+ "can not write register, returned %d\n", ret);
+
+ return ret;
+}
+
+static bool __devinit qt1070_identify(struct i2c_client *client)
+{
+ int id, ver;
+
+ /* Read Chip ID */
+ id = qt1070_read(client, CHIP_ID);
+ if (id != QT1070_CHIP_ID) {
+ dev_err(&client->dev, "ID %d not supported\n", id);
+ return false;
+ }
+
+ /* Read firmware version */
+ ver = qt1070_read(client, FW_VERSION);
+ if (ver < 0) {
+ dev_err(&client->dev, "could not read the firmware version\n");
+ return false;
+ }
+
+ dev_info(&client->dev, "AT42QT1070 firmware version %x\n", ver);
+
+ return true;
+}
+
+static irqreturn_t qt1070_interrupt(int irq, void *dev_id)
+{
+ struct qt1070_data *data = dev_id;
+ struct i2c_client *client = data->client;
+ struct input_dev *input = data->input;
+ int i;
+ u8 new_keys, keyval, mask = 0x01;
+
+ /* Read the detected status register, thus clearing interrupt */
+ qt1070_read(client, DET_STATUS);
+
+ /* Read which key changed */
+ new_keys = qt1070_read(client, KEY_STATUS);
+
+ for (i = 0; i < ARRAY_SIZE(qt1070_key2code); i++) {
+ keyval = new_keys & mask;
+ if ((data->last_keys & mask) != keyval)
+ input_report_key(input, data->keycodes[i], keyval);
+ mask <<= 1;
+ }
+ input_sync(input);
+
+ data->last_keys = new_keys;
+ return IRQ_HANDLED;
+}
+
+static int __devinit qt1070_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct qt1070_data *data;
+ struct input_dev *input;
+ int i;
+ int err;
+
+ err = i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE);
+ if (!err) {
+ dev_err(&client->dev, "%s adapter not supported\n",
+ dev_driver_string(&client->adapter->dev));
+ return -ENODEV;
+ }
+
+ if (!client->irq) {
+ dev_err(&client->dev, "please assign the irq to this device\n");
+ return -EINVAL;
+ }
+
+ /* Identify the qt1070 chip */
+ if (!qt1070_identify(client))
+ return -ENODEV;
+
+ data = kzalloc(sizeof(struct qt1070_data), GFP_KERNEL);
+ input = input_allocate_device();
+ if (!data || !input) {
+ dev_err(&client->dev, "insufficient memory\n");
+ err = -ENOMEM;
+ goto err_free_mem;
+ }
+
+ data->client = client;
+ data->input = input;
+ data->irq = client->irq;
+
+ input->name = "AT42QT1070 QTouch Sensor";
+ input->dev.parent = &client->dev;
+ input->id.bustype = BUS_I2C;
+
+ /* Add the keycode */
+ input->keycode = data->keycodes;
+ input->keycodesize = sizeof(data->keycodes[0]);
+ input->keycodemax = ARRAY_SIZE(qt1070_key2code);
+
+ __set_bit(EV_KEY, input->evbit);
+
+ for (i = 0; i < ARRAY_SIZE(qt1070_key2code); i++) {
+ data->keycodes[i] = qt1070_key2code[i];
+ __set_bit(qt1070_key2code[i], input->keybit);
+ }
+
+ /* Calibrate device */
+ qt1070_write(client, CALIBRATE_CMD, 1);
+ msleep(QT1070_CAL_TIME);
+
+ /* Soft reset */
+ qt1070_write(client, RESET, 1);
+ msleep(QT1070_RESET_TIME);
+
+ err = request_threaded_irq(client->irq, NULL, qt1070_interrupt,
+ IRQF_TRIGGER_NONE, client->dev.driver->name, data);
+ if (err) {
+ dev_err(&client->dev, "fail to request irq\n");
+ goto err_free_mem;
+ }
+
+ /* Register the input device */
+ err = input_register_device(data->input);
+ if (err) {
+ dev_err(&client->dev, "Failed to register input device\n");
+ goto err_free_irq;
+ }
+
+ i2c_set_clientdata(client, data);
+
+ /* Read to clear the chang line */
+ qt1070_read(client, DET_STATUS);
+
+ return 0;
+
+err_free_irq:
+ free_irq(client->irq, data);
+err_free_mem:
+ input_free_device(input);
+ kfree(data);
+ return err;
+}
+
+static int __devexit qt1070_remove(struct i2c_client *client)
+{
+ struct qt1070_data *data = i2c_get_clientdata(client);
+
+ /* Release IRQ */
+ free_irq(client->irq, data);
+
+ input_unregister_device(data->input);
+ kfree(data);
+
+ return 0;
+}
+
+static const struct i2c_device_id qt1070_id[] = {
+ { "qt1070", 0 },
+ { },
+};
+MODULE_DEVICE_TABLE(i2c, qt1070_id);
+
+static struct i2c_driver qt1070_driver = {
+ .driver = {
+ .name = "qt1070",
+ .owner = THIS_MODULE,
+ },
+ .id_table = qt1070_id,
+ .probe = qt1070_probe,
+ .remove = __devexit_p(qt1070_remove),
+};
+
+static int __init qt1070_init(void)
+{
+ return i2c_add_driver(&qt1070_driver);
+}
+module_init(qt1070_init);
+
+static void __exit qt1070_exit(void)
+{
+ i2c_del_driver(&qt1070_driver);
+}
+module_exit(qt1070_exit);
+
+MODULE_AUTHOR("Bo Shen <voice.shen@atmel.com>");
+MODULE_DESCRIPTION("Driver for AT42QT1070 QTouch sensor");
+MODULE_LICENSE("GPL");
diff --git a/drivers/input/keyboard/qt2160.c b/drivers/input/keyboard/qt2160.c
new file mode 100644
index 0000000..fac6951
--- /dev/null
+++ b/drivers/input/keyboard/qt2160.c
@@ -0,0 +1,396 @@
+/*
+ * qt2160.c - Atmel AT42QT2160 Touch Sense Controller
+ *
+ * Copyright (C) 2009 Raphael Derosso Pereira <raphaelpereira@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/jiffies.h>
+#include <linux/i2c.h>
+#include <linux/irq.h>
+#include <linux/interrupt.h>
+#include <linux/input.h>
+
+#define QT2160_VALID_CHIPID 0x11
+
+#define QT2160_CMD_CHIPID 0
+#define QT2160_CMD_CODEVER 1
+#define QT2160_CMD_GSTAT 2
+#define QT2160_CMD_KEYS3 3
+#define QT2160_CMD_KEYS4 4
+#define QT2160_CMD_SLIDE 5
+#define QT2160_CMD_GPIOS 6
+#define QT2160_CMD_SUBVER 7
+#define QT2160_CMD_CALIBRATE 10
+
+#define QT2160_CYCLE_INTERVAL (2*HZ)
+
+static unsigned char qt2160_key2code[] = {
+ KEY_0, KEY_1, KEY_2, KEY_3,
+ KEY_4, KEY_5, KEY_6, KEY_7,
+ KEY_8, KEY_9, KEY_A, KEY_B,
+ KEY_C, KEY_D, KEY_E, KEY_F,
+};
+
+struct qt2160_data {
+ struct i2c_client *client;
+ struct input_dev *input;
+ struct delayed_work dwork;
+ spinlock_t lock; /* Protects canceling/rescheduling of dwork */
+ unsigned short keycodes[ARRAY_SIZE(qt2160_key2code)];
+ u16 key_matrix;
+};
+
+static int qt2160_read_block(struct i2c_client *client,
+ u8 inireg, u8 *buffer, unsigned int count)
+{
+ int error, idx = 0;
+
+ /*
+ * Can't use SMBus block data read. Check for I2C functionality to speed
+ * things up whenever possible. Otherwise we will be forced to read
+ * sequentially.
+ */
+ if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
+
+ error = i2c_smbus_write_byte(client, inireg + idx);
+ if (error) {
+ dev_err(&client->dev,
+ "couldn't send request. Returned %d\n", error);
+ return error;
+ }
+
+ error = i2c_master_recv(client, buffer, count);
+ if (error != count) {
+ dev_err(&client->dev,
+ "couldn't read registers. Returned %d bytes\n", error);
+ return error;
+ }
+ } else {
+
+ while (count--) {
+ int data;
+
+ error = i2c_smbus_write_byte(client, inireg + idx);
+ if (error) {
+ dev_err(&client->dev,
+ "couldn't send request. Returned %d\n", error);
+ return error;
+ }
+
+ data = i2c_smbus_read_byte(client);
+ if (data < 0) {
+ dev_err(&client->dev,
+ "couldn't read register. Returned %d\n", data);
+ return data;
+ }
+
+ buffer[idx++] = data;
+ }
+ }
+
+ return 0;
+}
+
+static int qt2160_get_key_matrix(struct qt2160_data *qt2160)
+{
+ struct i2c_client *client = qt2160->client;
+ struct input_dev *input = qt2160->input;
+ u8 regs[6];
+ u16 old_matrix, new_matrix;
+ int ret, i, mask;
+
+ dev_dbg(&client->dev, "requesting keys...\n");
+
+ /*
+ * Read all registers from General Status Register
+ * to GPIOs register
+ */
+ ret = qt2160_read_block(client, QT2160_CMD_GSTAT, regs, 6);
+ if (ret) {
+ dev_err(&client->dev,
+ "could not perform chip read.\n");
+ return ret;
+ }
+
+ old_matrix = qt2160->key_matrix;
+ qt2160->key_matrix = new_matrix = (regs[2] << 8) | regs[1];
+
+ mask = 0x01;
+ for (i = 0; i < 16; ++i, mask <<= 1) {
+ int keyval = new_matrix & mask;
+
+ if ((old_matrix & mask) != keyval) {
+ input_report_key(input, qt2160->keycodes[i], keyval);
+ dev_dbg(&client->dev, "key %d %s\n",
+ i, keyval ? "pressed" : "released");
+ }
+ }
+
+ input_sync(input);
+
+ return 0;
+}
+
+static irqreturn_t qt2160_irq(int irq, void *_qt2160)
+{
+ struct qt2160_data *qt2160 = _qt2160;
+ unsigned long flags;
+
+ spin_lock_irqsave(&qt2160->lock, flags);
+
+ __cancel_delayed_work(&qt2160->dwork);
+ schedule_delayed_work(&qt2160->dwork, 0);
+
+ spin_unlock_irqrestore(&qt2160->lock, flags);
+
+ return IRQ_HANDLED;
+}
+
+static void qt2160_schedule_read(struct qt2160_data *qt2160)
+{
+ spin_lock_irq(&qt2160->lock);
+ schedule_delayed_work(&qt2160->dwork, QT2160_CYCLE_INTERVAL);
+ spin_unlock_irq(&qt2160->lock);
+}
+
+static void qt2160_worker(struct work_struct *work)
+{
+ struct qt2160_data *qt2160 =
+ container_of(work, struct qt2160_data, dwork.work);
+
+ dev_dbg(&qt2160->client->dev, "worker\n");
+
+ qt2160_get_key_matrix(qt2160);
+
+ /* Avoid device lock up by checking every so often */
+ qt2160_schedule_read(qt2160);
+}
+
+static int __devinit qt2160_read(struct i2c_client *client, u8 reg)
+{
+ int ret;
+
+ ret = i2c_smbus_write_byte(client, reg);
+ if (ret) {
+ dev_err(&client->dev,
+ "couldn't send request. Returned %d\n", ret);
+ return ret;
+ }
+
+ ret = i2c_smbus_read_byte(client);
+ if (ret < 0) {
+ dev_err(&client->dev,
+ "couldn't read register. Returned %d\n", ret);
+ return ret;
+ }
+
+ return ret;
+}
+
+static int __devinit qt2160_write(struct i2c_client *client, u8 reg, u8 data)
+{
+ int error;
+
+ error = i2c_smbus_write_byte(client, reg);
+ if (error) {
+ dev_err(&client->dev,
+ "couldn't send request. Returned %d\n", error);
+ return error;
+ }
+
+ error = i2c_smbus_write_byte(client, data);
+ if (error) {
+ dev_err(&client->dev,
+ "couldn't write data. Returned %d\n", error);
+ return error;
+ }
+
+ return error;
+}
+
+
+static bool __devinit qt2160_identify(struct i2c_client *client)
+{
+ int id, ver, rev;
+
+ /* Read Chid ID to check if chip is valid */
+ id = qt2160_read(client, QT2160_CMD_CHIPID);
+ if (id != QT2160_VALID_CHIPID) {
+ dev_err(&client->dev, "ID %d not supported\n", id);
+ return false;
+ }
+
+ /* Read chip firmware version */
+ ver = qt2160_read(client, QT2160_CMD_CODEVER);
+ if (ver < 0) {
+ dev_err(&client->dev, "could not get firmware version\n");
+ return false;
+ }
+
+ /* Read chip firmware revision */
+ rev = qt2160_read(client, QT2160_CMD_SUBVER);
+ if (rev < 0) {
+ dev_err(&client->dev, "could not get firmware revision\n");
+ return false;
+ }
+
+ dev_info(&client->dev, "AT42QT2160 firmware version %d.%d.%d\n",
+ ver >> 4, ver & 0xf, rev);
+
+ return true;
+}
+
+static int __devinit qt2160_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct qt2160_data *qt2160;
+ struct input_dev *input;
+ int i;
+ int error;
+
+ /* Check functionality */
+ error = i2c_check_functionality(client->adapter,
+ I2C_FUNC_SMBUS_BYTE);
+ if (!error) {
+ dev_err(&client->dev, "%s adapter not supported\n",
+ dev_driver_string(&client->adapter->dev));
+ return -ENODEV;
+ }
+
+ if (!qt2160_identify(client))
+ return -ENODEV;
+
+ /* Chip is valid and active. Allocate structure */
+ qt2160 = kzalloc(sizeof(struct qt2160_data), GFP_KERNEL);
+ input = input_allocate_device();
+ if (!qt2160 || !input) {
+ dev_err(&client->dev, "insufficient memory\n");
+ error = -ENOMEM;
+ goto err_free_mem;
+ }
+
+ qt2160->client = client;
+ qt2160->input = input;
+ INIT_DELAYED_WORK(&qt2160->dwork, qt2160_worker);
+ spin_lock_init(&qt2160->lock);
+
+ input->name = "AT42QT2160 Touch Sense Keyboard";
+ input->id.bustype = BUS_I2C;
+
+ input->keycode = qt2160->keycodes;
+ input->keycodesize = sizeof(qt2160->keycodes[0]);
+ input->keycodemax = ARRAY_SIZE(qt2160_key2code);
+
+ __set_bit(EV_KEY, input->evbit);
+ __clear_bit(EV_REP, input->evbit);
+ for (i = 0; i < ARRAY_SIZE(qt2160_key2code); i++) {
+ qt2160->keycodes[i] = qt2160_key2code[i];
+ __set_bit(qt2160_key2code[i], input->keybit);
+ }
+ __clear_bit(KEY_RESERVED, input->keybit);
+
+ /* Calibrate device */
+ error = qt2160_write(client, QT2160_CMD_CALIBRATE, 1);
+ if (error) {
+ dev_err(&client->dev, "failed to calibrate device\n");
+ goto err_free_mem;
+ }
+
+ if (client->irq) {
+ error = request_irq(client->irq, qt2160_irq,
+ IRQF_TRIGGER_FALLING, "qt2160", qt2160);
+ if (error) {
+ dev_err(&client->dev,
+ "failed to allocate irq %d\n", client->irq);
+ goto err_free_mem;
+ }
+ }
+
+ error = input_register_device(qt2160->input);
+ if (error) {
+ dev_err(&client->dev,
+ "Failed to register input device\n");
+ goto err_free_irq;
+ }
+
+ i2c_set_clientdata(client, qt2160);
+ qt2160_schedule_read(qt2160);
+
+ return 0;
+
+err_free_irq:
+ if (client->irq)
+ free_irq(client->irq, qt2160);
+err_free_mem:
+ input_free_device(input);
+ kfree(qt2160);
+ return error;
+}
+
+static int __devexit qt2160_remove(struct i2c_client *client)
+{
+ struct qt2160_data *qt2160 = i2c_get_clientdata(client);
+
+ /* Release IRQ so no queue will be scheduled */
+ if (client->irq)
+ free_irq(client->irq, qt2160);
+
+ cancel_delayed_work_sync(&qt2160->dwork);
+
+ input_unregister_device(qt2160->input);
+ kfree(qt2160);
+
+ return 0;
+}
+
+static const struct i2c_device_id qt2160_idtable[] = {
+ { "qt2160", 0, },
+ { }
+};
+
+MODULE_DEVICE_TABLE(i2c, qt2160_idtable);
+
+static struct i2c_driver qt2160_driver = {
+ .driver = {
+ .name = "qt2160",
+ .owner = THIS_MODULE,
+ },
+
+ .id_table = qt2160_idtable,
+ .probe = qt2160_probe,
+ .remove = __devexit_p(qt2160_remove),
+};
+
+static int __init qt2160_init(void)
+{
+ return i2c_add_driver(&qt2160_driver);
+}
+module_init(qt2160_init);
+
+static void __exit qt2160_cleanup(void)
+{
+ i2c_del_driver(&qt2160_driver);
+}
+module_exit(qt2160_cleanup);
+
+MODULE_AUTHOR("Raphael Derosso Pereira <raphaelpereira@gmail.com>");
+MODULE_DESCRIPTION("Driver for AT42QT2160 Touch Sensor");
+MODULE_LICENSE("GPL");
diff --git a/drivers/input/keyboard/samsung-keypad.c b/drivers/input/keyboard/samsung-keypad.c
new file mode 100644
index 0000000..f689f49
--- /dev/null
+++ b/drivers/input/keyboard/samsung-keypad.c
@@ -0,0 +1,491 @@
+/*
+ * Samsung keypad driver
+ *
+ * Copyright (C) 2010 Samsung Electronics Co.Ltd
+ * Author: Joonyoung Shim <jy0922.shim@samsung.com>
+ * Author: Donghwa Lee <dh09.lee@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/clk.h>
+#include <linux/delay.h>
+#include <linux/err.h>
+#include <linux/init.h>
+#include <linux/input.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <linux/sched.h>
+#include <plat/keypad.h>
+
+#define SAMSUNG_KEYIFCON 0x00
+#define SAMSUNG_KEYIFSTSCLR 0x04
+#define SAMSUNG_KEYIFCOL 0x08
+#define SAMSUNG_KEYIFROW 0x0c
+#define SAMSUNG_KEYIFFC 0x10
+
+/* SAMSUNG_KEYIFCON */
+#define SAMSUNG_KEYIFCON_INT_F_EN (1 << 0)
+#define SAMSUNG_KEYIFCON_INT_R_EN (1 << 1)
+#define SAMSUNG_KEYIFCON_DF_EN (1 << 2)
+#define SAMSUNG_KEYIFCON_FC_EN (1 << 3)
+#define SAMSUNG_KEYIFCON_WAKEUPEN (1 << 4)
+
+/* SAMSUNG_KEYIFSTSCLR */
+#define SAMSUNG_KEYIFSTSCLR_P_INT_MASK (0xff << 0)
+#define SAMSUNG_KEYIFSTSCLR_R_INT_MASK (0xff << 8)
+#define SAMSUNG_KEYIFSTSCLR_R_INT_OFFSET 8
+#define S5PV210_KEYIFSTSCLR_P_INT_MASK (0x3fff << 0)
+#define S5PV210_KEYIFSTSCLR_R_INT_MASK (0x3fff << 16)
+#define S5PV210_KEYIFSTSCLR_R_INT_OFFSET 16
+
+/* SAMSUNG_KEYIFCOL */
+#define SAMSUNG_KEYIFCOL_MASK (0xff << 0)
+#define S5PV210_KEYIFCOLEN_MASK (0xff << 8)
+
+/* SAMSUNG_KEYIFROW */
+#define SAMSUNG_KEYIFROW_MASK (0xff << 0)
+#define S5PV210_KEYIFROW_MASK (0x3fff << 0)
+
+/* SAMSUNG_KEYIFFC */
+#define SAMSUNG_KEYIFFC_MASK (0x3ff << 0)
+
+enum samsung_keypad_type {
+ KEYPAD_TYPE_SAMSUNG,
+ KEYPAD_TYPE_S5PV210,
+};
+
+struct samsung_keypad {
+ struct input_dev *input_dev;
+ struct clk *clk;
+ void __iomem *base;
+ wait_queue_head_t wait;
+ bool stopped;
+ int irq;
+ unsigned int row_shift;
+ unsigned int rows;
+ unsigned int cols;
+ unsigned int row_state[SAMSUNG_MAX_COLS];
+ unsigned short keycodes[];
+};
+
+static int samsung_keypad_is_s5pv210(struct device *dev)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ enum samsung_keypad_type type =
+ platform_get_device_id(pdev)->driver_data;
+
+ return type == KEYPAD_TYPE_S5PV210;
+}
+
+static void samsung_keypad_scan(struct samsung_keypad *keypad,
+ unsigned int *row_state)
+{
+ struct device *dev = keypad->input_dev->dev.parent;
+ unsigned int col;
+ unsigned int val;
+
+ for (col = 0; col < keypad->cols; col++) {
+ if (samsung_keypad_is_s5pv210(dev)) {
+ val = S5PV210_KEYIFCOLEN_MASK;
+ val &= ~(1 << col) << 8;
+ } else {
+ val = SAMSUNG_KEYIFCOL_MASK;
+ val &= ~(1 << col);
+ }
+
+ writel(val, keypad->base + SAMSUNG_KEYIFCOL);
+ mdelay(1);
+
+ val = readl(keypad->base + SAMSUNG_KEYIFROW);
+ row_state[col] = ~val & ((1 << keypad->rows) - 1);
+ }
+
+ /* KEYIFCOL reg clear */
+ writel(0, keypad->base + SAMSUNG_KEYIFCOL);
+}
+
+static bool samsung_keypad_report(struct samsung_keypad *keypad,
+ unsigned int *row_state)
+{
+ struct input_dev *input_dev = keypad->input_dev;
+ unsigned int changed;
+ unsigned int pressed;
+ unsigned int key_down = 0;
+ unsigned int val;
+ unsigned int col, row;
+
+ for (col = 0; col < keypad->cols; col++) {
+ changed = row_state[col] ^ keypad->row_state[col];
+ key_down |= row_state[col];
+ if (!changed)
+ continue;
+
+ for (row = 0; row < keypad->rows; row++) {
+ if (!(changed & (1 << row)))
+ continue;
+
+ pressed = row_state[col] & (1 << row);
+
+ dev_dbg(&keypad->input_dev->dev,
+ "key %s, row: %d, col: %d\n",
+ pressed ? "pressed" : "released", row, col);
+
+ val = MATRIX_SCAN_CODE(row, col, keypad->row_shift);
+
+ input_event(input_dev, EV_MSC, MSC_SCAN, val);
+ input_report_key(input_dev,
+ keypad->keycodes[val], pressed);
+ }
+ input_sync(keypad->input_dev);
+ }
+
+ memcpy(keypad->row_state, row_state, sizeof(keypad->row_state));
+
+ return key_down;
+}
+
+static irqreturn_t samsung_keypad_irq(int irq, void *dev_id)
+{
+ struct samsung_keypad *keypad = dev_id;
+ unsigned int row_state[SAMSUNG_MAX_COLS];
+ unsigned int val;
+ bool key_down;
+
+ do {
+ val = readl(keypad->base + SAMSUNG_KEYIFSTSCLR);
+ /* Clear interrupt. */
+ writel(~0x0, keypad->base + SAMSUNG_KEYIFSTSCLR);
+
+ samsung_keypad_scan(keypad, row_state);
+
+ key_down = samsung_keypad_report(keypad, row_state);
+ if (key_down)
+ wait_event_timeout(keypad->wait, keypad->stopped,
+ msecs_to_jiffies(50));
+
+ } while (key_down && !keypad->stopped);
+
+ return IRQ_HANDLED;
+}
+
+static void samsung_keypad_start(struct samsung_keypad *keypad)
+{
+ unsigned int val;
+
+ /* Tell IRQ thread that it may poll the device. */
+ keypad->stopped = false;
+
+ clk_enable(keypad->clk);
+
+ /* Enable interrupt bits. */
+ val = readl(keypad->base + SAMSUNG_KEYIFCON);
+ val |= SAMSUNG_KEYIFCON_INT_F_EN | SAMSUNG_KEYIFCON_INT_R_EN;
+ writel(val, keypad->base + SAMSUNG_KEYIFCON);
+
+ /* KEYIFCOL reg clear. */
+ writel(0, keypad->base + SAMSUNG_KEYIFCOL);
+}
+
+static void samsung_keypad_stop(struct samsung_keypad *keypad)
+{
+ unsigned int val;
+
+ /* Signal IRQ thread to stop polling and disable the handler. */
+ keypad->stopped = true;
+ wake_up(&keypad->wait);
+ disable_irq(keypad->irq);
+
+ /* Clear interrupt. */
+ writel(~0x0, keypad->base + SAMSUNG_KEYIFSTSCLR);
+
+ /* Disable interrupt bits. */
+ val = readl(keypad->base + SAMSUNG_KEYIFCON);
+ val &= ~(SAMSUNG_KEYIFCON_INT_F_EN | SAMSUNG_KEYIFCON_INT_R_EN);
+ writel(val, keypad->base + SAMSUNG_KEYIFCON);
+
+ clk_disable(keypad->clk);
+
+ /*
+ * Now that chip should not generate interrupts we can safely
+ * re-enable the handler.
+ */
+ enable_irq(keypad->irq);
+}
+
+static int samsung_keypad_open(struct input_dev *input_dev)
+{
+ struct samsung_keypad *keypad = input_get_drvdata(input_dev);
+
+ samsung_keypad_start(keypad);
+
+ return 0;
+}
+
+static void samsung_keypad_close(struct input_dev *input_dev)
+{
+ struct samsung_keypad *keypad = input_get_drvdata(input_dev);
+
+ samsung_keypad_stop(keypad);
+}
+
+static int __devinit samsung_keypad_probe(struct platform_device *pdev)
+{
+ const struct samsung_keypad_platdata *pdata;
+ const struct matrix_keymap_data *keymap_data;
+ struct samsung_keypad *keypad;
+ struct resource *res;
+ struct input_dev *input_dev;
+ unsigned int row_shift;
+ unsigned int keymap_size;
+ int error;
+
+ pdata = pdev->dev.platform_data;
+ if (!pdata) {
+ dev_err(&pdev->dev, "no platform data defined\n");
+ return -EINVAL;
+ }
+
+ keymap_data = pdata->keymap_data;
+ if (!keymap_data) {
+ dev_err(&pdev->dev, "no keymap data defined\n");
+ return -EINVAL;
+ }
+
+ if (!pdata->rows || pdata->rows > SAMSUNG_MAX_ROWS)
+ return -EINVAL;
+
+ if (!pdata->cols || pdata->cols > SAMSUNG_MAX_COLS)
+ return -EINVAL;
+
+ /* initialize the gpio */
+ if (pdata->cfg_gpio)
+ pdata->cfg_gpio(pdata->rows, pdata->cols);
+
+ row_shift = get_count_order(pdata->cols);
+ keymap_size = (pdata->rows << row_shift) * sizeof(keypad->keycodes[0]);
+
+ keypad = kzalloc(sizeof(*keypad) + keymap_size, GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!keypad || !input_dev) {
+ error = -ENOMEM;
+ goto err_free_mem;
+ }
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!res) {
+ error = -ENODEV;
+ goto err_free_mem;
+ }
+
+ keypad->base = ioremap(res->start, resource_size(res));
+ if (!keypad->base) {
+ error = -EBUSY;
+ goto err_free_mem;
+ }
+
+ keypad->clk = clk_get(&pdev->dev, "keypad");
+ if (IS_ERR(keypad->clk)) {
+ dev_err(&pdev->dev, "failed to get keypad clk\n");
+ error = PTR_ERR(keypad->clk);
+ goto err_unmap_base;
+ }
+
+ keypad->input_dev = input_dev;
+ keypad->row_shift = row_shift;
+ keypad->rows = pdata->rows;
+ keypad->cols = pdata->cols;
+ init_waitqueue_head(&keypad->wait);
+
+ input_dev->name = pdev->name;
+ input_dev->id.bustype = BUS_HOST;
+ input_dev->dev.parent = &pdev->dev;
+ input_set_drvdata(input_dev, keypad);
+
+ input_dev->open = samsung_keypad_open;
+ input_dev->close = samsung_keypad_close;
+
+ input_dev->evbit[0] = BIT_MASK(EV_KEY);
+ if (!pdata->no_autorepeat)
+ input_dev->evbit[0] |= BIT_MASK(EV_REP);
+
+ input_set_capability(input_dev, EV_MSC, MSC_SCAN);
+
+ input_dev->keycode = keypad->keycodes;
+ input_dev->keycodesize = sizeof(keypad->keycodes[0]);
+ input_dev->keycodemax = pdata->rows << row_shift;
+
+ matrix_keypad_build_keymap(keymap_data, row_shift,
+ input_dev->keycode, input_dev->keybit);
+
+ keypad->irq = platform_get_irq(pdev, 0);
+ if (keypad->irq < 0) {
+ error = keypad->irq;
+ goto err_put_clk;
+ }
+
+ error = request_threaded_irq(keypad->irq, NULL, samsung_keypad_irq,
+ IRQF_ONESHOT, dev_name(&pdev->dev), keypad);
+ if (error) {
+ dev_err(&pdev->dev, "failed to register keypad interrupt\n");
+ goto err_put_clk;
+ }
+
+ error = input_register_device(keypad->input_dev);
+ if (error)
+ goto err_free_irq;
+
+ device_init_wakeup(&pdev->dev, pdata->wakeup);
+ platform_set_drvdata(pdev, keypad);
+ return 0;
+
+err_free_irq:
+ free_irq(keypad->irq, keypad);
+err_put_clk:
+ clk_put(keypad->clk);
+err_unmap_base:
+ iounmap(keypad->base);
+err_free_mem:
+ input_free_device(input_dev);
+ kfree(keypad);
+
+ return error;
+}
+
+static int __devexit samsung_keypad_remove(struct platform_device *pdev)
+{
+ struct samsung_keypad *keypad = platform_get_drvdata(pdev);
+
+ device_init_wakeup(&pdev->dev, 0);
+ platform_set_drvdata(pdev, NULL);
+
+ input_unregister_device(keypad->input_dev);
+
+ /*
+ * It is safe to free IRQ after unregistering device because
+ * samsung_keypad_close will shut off interrupts.
+ */
+ free_irq(keypad->irq, keypad);
+
+ clk_put(keypad->clk);
+
+ iounmap(keypad->base);
+ kfree(keypad);
+
+ return 0;
+}
+
+#ifdef CONFIG_PM
+static void samsung_keypad_toggle_wakeup(struct samsung_keypad *keypad,
+ bool enable)
+{
+ struct device *dev = keypad->input_dev->dev.parent;
+ unsigned int val;
+
+ clk_enable(keypad->clk);
+
+ val = readl(keypad->base + SAMSUNG_KEYIFCON);
+ if (enable) {
+ val |= SAMSUNG_KEYIFCON_WAKEUPEN;
+ if (device_may_wakeup(dev))
+ enable_irq_wake(keypad->irq);
+ } else {
+ val &= ~SAMSUNG_KEYIFCON_WAKEUPEN;
+ if (device_may_wakeup(dev))
+ disable_irq_wake(keypad->irq);
+ }
+ writel(val, keypad->base + SAMSUNG_KEYIFCON);
+
+ clk_disable(keypad->clk);
+}
+
+static int samsung_keypad_suspend(struct device *dev)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ struct samsung_keypad *keypad = platform_get_drvdata(pdev);
+ struct input_dev *input_dev = keypad->input_dev;
+
+ mutex_lock(&input_dev->mutex);
+
+ if (input_dev->users)
+ samsung_keypad_stop(keypad);
+
+ samsung_keypad_toggle_wakeup(keypad, true);
+
+ mutex_unlock(&input_dev->mutex);
+
+ return 0;
+}
+
+static int samsung_keypad_resume(struct device *dev)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ struct samsung_keypad *keypad = platform_get_drvdata(pdev);
+ struct input_dev *input_dev = keypad->input_dev;
+
+ mutex_lock(&input_dev->mutex);
+
+ samsung_keypad_toggle_wakeup(keypad, false);
+
+ if (input_dev->users)
+ samsung_keypad_start(keypad);
+
+ mutex_unlock(&input_dev->mutex);
+
+ return 0;
+}
+
+static const struct dev_pm_ops samsung_keypad_pm_ops = {
+ .suspend = samsung_keypad_suspend,
+ .resume = samsung_keypad_resume,
+};
+#endif
+
+static struct platform_device_id samsung_keypad_driver_ids[] = {
+ {
+ .name = "samsung-keypad",
+ .driver_data = KEYPAD_TYPE_SAMSUNG,
+ }, {
+ .name = "s5pv210-keypad",
+ .driver_data = KEYPAD_TYPE_S5PV210,
+ },
+ { },
+};
+MODULE_DEVICE_TABLE(platform, samsung_keypad_driver_ids);
+
+static struct platform_driver samsung_keypad_driver = {
+ .probe = samsung_keypad_probe,
+ .remove = __devexit_p(samsung_keypad_remove),
+ .driver = {
+ .name = "samsung-keypad",
+ .owner = THIS_MODULE,
+#ifdef CONFIG_PM
+ .pm = &samsung_keypad_pm_ops,
+#endif
+ },
+ .id_table = samsung_keypad_driver_ids,
+};
+
+static int __init samsung_keypad_init(void)
+{
+ return platform_driver_register(&samsung_keypad_driver);
+}
+module_init(samsung_keypad_init);
+
+static void __exit samsung_keypad_exit(void)
+{
+ platform_driver_unregister(&samsung_keypad_driver);
+}
+module_exit(samsung_keypad_exit);
+
+MODULE_DESCRIPTION("Samsung keypad driver");
+MODULE_AUTHOR("Joonyoung Shim <jy0922.shim@samsung.com>");
+MODULE_AUTHOR("Donghwa Lee <dh09.lee@samsung.com>");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:samsung-keypad");
diff --git a/drivers/input/keyboard/sh_keysc.c b/drivers/input/keyboard/sh_keysc.c
new file mode 100644
index 0000000..934aeb583
--- /dev/null
+++ b/drivers/input/keyboard/sh_keysc.c
@@ -0,0 +1,356 @@
+/*
+ * SuperH KEYSC Keypad Driver
+ *
+ * Copyright (C) 2008 Magnus Damm
+ *
+ * Based on gpio_keys.c, Copyright 2005 Phil Blundell
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/delay.h>
+#include <linux/platform_device.h>
+#include <linux/input.h>
+#include <linux/input/sh_keysc.h>
+#include <linux/bitmap.h>
+#include <linux/pm_runtime.h>
+#include <linux/io.h>
+#include <linux/slab.h>
+
+static const struct {
+ unsigned char kymd, keyout, keyin;
+} sh_keysc_mode[] = {
+ [SH_KEYSC_MODE_1] = { 0, 6, 5 },
+ [SH_KEYSC_MODE_2] = { 1, 5, 6 },
+ [SH_KEYSC_MODE_3] = { 2, 4, 7 },
+ [SH_KEYSC_MODE_4] = { 3, 6, 6 },
+ [SH_KEYSC_MODE_5] = { 4, 6, 7 },
+ [SH_KEYSC_MODE_6] = { 5, 8, 8 },
+};
+
+struct sh_keysc_priv {
+ void __iomem *iomem_base;
+ DECLARE_BITMAP(last_keys, SH_KEYSC_MAXKEYS);
+ struct input_dev *input;
+ struct sh_keysc_info pdata;
+};
+
+#define KYCR1 0
+#define KYCR2 1
+#define KYINDR 2
+#define KYOUTDR 3
+
+#define KYCR2_IRQ_LEVEL 0x10
+#define KYCR2_IRQ_DISABLED 0x00
+
+static unsigned long sh_keysc_read(struct sh_keysc_priv *p, int reg_nr)
+{
+ return ioread16(p->iomem_base + (reg_nr << 2));
+}
+
+static void sh_keysc_write(struct sh_keysc_priv *p, int reg_nr,
+ unsigned long value)
+{
+ iowrite16(value, p->iomem_base + (reg_nr << 2));
+}
+
+static void sh_keysc_level_mode(struct sh_keysc_priv *p,
+ unsigned long keys_set)
+{
+ struct sh_keysc_info *pdata = &p->pdata;
+
+ sh_keysc_write(p, KYOUTDR, 0);
+ sh_keysc_write(p, KYCR2, KYCR2_IRQ_LEVEL | (keys_set << 8));
+
+ if (pdata->kycr2_delay)
+ udelay(pdata->kycr2_delay);
+}
+
+static void sh_keysc_map_dbg(struct device *dev, unsigned long *map,
+ const char *str)
+{
+ int k;
+
+ for (k = 0; k < BITS_TO_LONGS(SH_KEYSC_MAXKEYS); k++)
+ dev_dbg(dev, "%s[%d] 0x%lx\n", str, k, map[k]);
+}
+
+static irqreturn_t sh_keysc_isr(int irq, void *dev_id)
+{
+ struct platform_device *pdev = dev_id;
+ struct sh_keysc_priv *priv = platform_get_drvdata(pdev);
+ struct sh_keysc_info *pdata = &priv->pdata;
+ int keyout_nr = sh_keysc_mode[pdata->mode].keyout;
+ int keyin_nr = sh_keysc_mode[pdata->mode].keyin;
+ DECLARE_BITMAP(keys, SH_KEYSC_MAXKEYS);
+ DECLARE_BITMAP(keys0, SH_KEYSC_MAXKEYS);
+ DECLARE_BITMAP(keys1, SH_KEYSC_MAXKEYS);
+ unsigned char keyin_set, tmp;
+ int i, k, n;
+
+ dev_dbg(&pdev->dev, "isr!\n");
+
+ bitmap_fill(keys1, SH_KEYSC_MAXKEYS);
+ bitmap_zero(keys0, SH_KEYSC_MAXKEYS);
+
+ do {
+ bitmap_zero(keys, SH_KEYSC_MAXKEYS);
+ keyin_set = 0;
+
+ sh_keysc_write(priv, KYCR2, KYCR2_IRQ_DISABLED);
+
+ for (i = 0; i < keyout_nr; i++) {
+ n = keyin_nr * i;
+
+ /* drive one KEYOUT pin low, read KEYIN pins */
+ sh_keysc_write(priv, KYOUTDR, 0xffff ^ (3 << (i * 2)));
+ udelay(pdata->delay);
+ tmp = sh_keysc_read(priv, KYINDR);
+
+ /* set bit if key press has been detected */
+ for (k = 0; k < keyin_nr; k++) {
+ if (tmp & (1 << k))
+ __set_bit(n + k, keys);
+ }
+
+ /* keep track of which KEYIN bits that have been set */
+ keyin_set |= tmp ^ ((1 << keyin_nr) - 1);
+ }
+
+ sh_keysc_level_mode(priv, keyin_set);
+
+ bitmap_complement(keys, keys, SH_KEYSC_MAXKEYS);
+ bitmap_and(keys1, keys1, keys, SH_KEYSC_MAXKEYS);
+ bitmap_or(keys0, keys0, keys, SH_KEYSC_MAXKEYS);
+
+ sh_keysc_map_dbg(&pdev->dev, keys, "keys");
+
+ } while (sh_keysc_read(priv, KYCR2) & 0x01);
+
+ sh_keysc_map_dbg(&pdev->dev, priv->last_keys, "last_keys");
+ sh_keysc_map_dbg(&pdev->dev, keys0, "keys0");
+ sh_keysc_map_dbg(&pdev->dev, keys1, "keys1");
+
+ for (i = 0; i < SH_KEYSC_MAXKEYS; i++) {
+ k = pdata->keycodes[i];
+ if (!k)
+ continue;
+
+ if (test_bit(i, keys0) == test_bit(i, priv->last_keys))
+ continue;
+
+ if (test_bit(i, keys1) || test_bit(i, keys0)) {
+ input_event(priv->input, EV_KEY, k, 1);
+ __set_bit(i, priv->last_keys);
+ }
+
+ if (!test_bit(i, keys1)) {
+ input_event(priv->input, EV_KEY, k, 0);
+ __clear_bit(i, priv->last_keys);
+ }
+
+ }
+ input_sync(priv->input);
+
+ return IRQ_HANDLED;
+}
+
+static int __devinit sh_keysc_probe(struct platform_device *pdev)
+{
+ struct sh_keysc_priv *priv;
+ struct sh_keysc_info *pdata;
+ struct resource *res;
+ struct input_dev *input;
+ int i;
+ int irq, error;
+
+ if (!pdev->dev.platform_data) {
+ dev_err(&pdev->dev, "no platform data defined\n");
+ error = -EINVAL;
+ goto err0;
+ }
+
+ error = -ENXIO;
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (res == NULL) {
+ dev_err(&pdev->dev, "failed to get I/O memory\n");
+ goto err0;
+ }
+
+ irq = platform_get_irq(pdev, 0);
+ if (irq < 0) {
+ dev_err(&pdev->dev, "failed to get irq\n");
+ goto err0;
+ }
+
+ priv = kzalloc(sizeof(*priv), GFP_KERNEL);
+ if (priv == NULL) {
+ dev_err(&pdev->dev, "failed to allocate driver data\n");
+ error = -ENOMEM;
+ goto err0;
+ }
+
+ platform_set_drvdata(pdev, priv);
+ memcpy(&priv->pdata, pdev->dev.platform_data, sizeof(priv->pdata));
+ pdata = &priv->pdata;
+
+ priv->iomem_base = ioremap_nocache(res->start, resource_size(res));
+ if (priv->iomem_base == NULL) {
+ dev_err(&pdev->dev, "failed to remap I/O memory\n");
+ error = -ENXIO;
+ goto err1;
+ }
+
+ priv->input = input_allocate_device();
+ if (!priv->input) {
+ dev_err(&pdev->dev, "failed to allocate input device\n");
+ error = -ENOMEM;
+ goto err2;
+ }
+
+ input = priv->input;
+ input->evbit[0] = BIT_MASK(EV_KEY);
+
+ input->name = pdev->name;
+ input->phys = "sh-keysc-keys/input0";
+ input->dev.parent = &pdev->dev;
+
+ input->id.bustype = BUS_HOST;
+ input->id.vendor = 0x0001;
+ input->id.product = 0x0001;
+ input->id.version = 0x0100;
+
+ input->keycode = pdata->keycodes;
+ input->keycodesize = sizeof(pdata->keycodes[0]);
+ input->keycodemax = ARRAY_SIZE(pdata->keycodes);
+
+ error = request_threaded_irq(irq, NULL, sh_keysc_isr, IRQF_ONESHOT,
+ dev_name(&pdev->dev), pdev);
+ if (error) {
+ dev_err(&pdev->dev, "failed to request IRQ\n");
+ goto err3;
+ }
+
+ for (i = 0; i < SH_KEYSC_MAXKEYS; i++)
+ __set_bit(pdata->keycodes[i], input->keybit);
+ __clear_bit(KEY_RESERVED, input->keybit);
+
+ error = input_register_device(input);
+ if (error) {
+ dev_err(&pdev->dev, "failed to register input device\n");
+ goto err4;
+ }
+
+ pm_runtime_enable(&pdev->dev);
+ pm_runtime_get_sync(&pdev->dev);
+
+ sh_keysc_write(priv, KYCR1, (sh_keysc_mode[pdata->mode].kymd << 8) |
+ pdata->scan_timing);
+ sh_keysc_level_mode(priv, 0);
+
+ device_init_wakeup(&pdev->dev, 1);
+
+ return 0;
+
+ err4:
+ free_irq(irq, pdev);
+ err3:
+ input_free_device(input);
+ err2:
+ iounmap(priv->iomem_base);
+ err1:
+ platform_set_drvdata(pdev, NULL);
+ kfree(priv);
+ err0:
+ return error;
+}
+
+static int __devexit sh_keysc_remove(struct platform_device *pdev)
+{
+ struct sh_keysc_priv *priv = platform_get_drvdata(pdev);
+
+ sh_keysc_write(priv, KYCR2, KYCR2_IRQ_DISABLED);
+
+ input_unregister_device(priv->input);
+ free_irq(platform_get_irq(pdev, 0), pdev);
+ iounmap(priv->iomem_base);
+
+ pm_runtime_put_sync(&pdev->dev);
+ pm_runtime_disable(&pdev->dev);
+
+ platform_set_drvdata(pdev, NULL);
+ kfree(priv);
+
+ return 0;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int sh_keysc_suspend(struct device *dev)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ struct sh_keysc_priv *priv = platform_get_drvdata(pdev);
+ int irq = platform_get_irq(pdev, 0);
+ unsigned short value;
+
+ value = sh_keysc_read(priv, KYCR1);
+
+ if (device_may_wakeup(dev)) {
+ sh_keysc_write(priv, KYCR1, value | 0x80);
+ enable_irq_wake(irq);
+ } else {
+ sh_keysc_write(priv, KYCR1, value & ~0x80);
+ pm_runtime_put_sync(dev);
+ }
+
+ return 0;
+}
+
+static int sh_keysc_resume(struct device *dev)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ int irq = platform_get_irq(pdev, 0);
+
+ if (device_may_wakeup(dev))
+ disable_irq_wake(irq);
+ else
+ pm_runtime_get_sync(dev);
+
+ return 0;
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(sh_keysc_dev_pm_ops,
+ sh_keysc_suspend, sh_keysc_resume);
+
+static struct platform_driver sh_keysc_device_driver = {
+ .probe = sh_keysc_probe,
+ .remove = __devexit_p(sh_keysc_remove),
+ .driver = {
+ .name = "sh_keysc",
+ .pm = &sh_keysc_dev_pm_ops,
+ }
+};
+
+static int __init sh_keysc_init(void)
+{
+ return platform_driver_register(&sh_keysc_device_driver);
+}
+
+static void __exit sh_keysc_exit(void)
+{
+ platform_driver_unregister(&sh_keysc_device_driver);
+}
+
+module_init(sh_keysc_init);
+module_exit(sh_keysc_exit);
+
+MODULE_AUTHOR("Magnus Damm");
+MODULE_DESCRIPTION("SuperH KEYSC Keypad Driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/input/keyboard/spear-keyboard.c b/drivers/input/keyboard/spear-keyboard.c
new file mode 100644
index 0000000..d712dff
--- /dev/null
+++ b/drivers/input/keyboard/spear-keyboard.c
@@ -0,0 +1,344 @@
+/*
+ * SPEAr Keyboard Driver
+ * Based on omap-keypad driver
+ *
+ * Copyright (C) 2010 ST Microelectronics
+ * Rajeev Kumar<rajeev-dlh.kumar@st.com>
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#include <linux/clk.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/input.h>
+#include <linux/io.h>
+#include <linux/irq.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/pm_wakeup.h>
+#include <linux/slab.h>
+#include <linux/types.h>
+#include <plat/keyboard.h>
+
+/* Keyboard Registers */
+#define MODE_REG 0x00 /* 16 bit reg */
+#define STATUS_REG 0x0C /* 2 bit reg */
+#define DATA_REG 0x10 /* 8 bit reg */
+#define INTR_MASK 0x54
+
+/* Register Values */
+/*
+ * pclk freq mask = (APB FEQ -1)= 82 MHZ.Programme bit 15-9 in mode
+ * control register as 1010010(82MHZ)
+ */
+#define PCLK_FREQ_MSK 0xA400 /* 82 MHz */
+#define START_SCAN 0x0100
+#define SCAN_RATE_10 0x0000
+#define SCAN_RATE_20 0x0004
+#define SCAN_RATE_40 0x0008
+#define SCAN_RATE_80 0x000C
+#define MODE_KEYBOARD 0x0002
+#define DATA_AVAIL 0x2
+
+#define KEY_MASK 0xFF000000
+#define KEY_VALUE 0x00FFFFFF
+#define ROW_MASK 0xF0
+#define COLUMN_MASK 0x0F
+#define ROW_SHIFT 4
+
+struct spear_kbd {
+ struct input_dev *input;
+ struct resource *res;
+ void __iomem *io_base;
+ struct clk *clk;
+ unsigned int irq;
+ unsigned short last_key;
+ unsigned short keycodes[256];
+};
+
+static irqreturn_t spear_kbd_interrupt(int irq, void *dev_id)
+{
+ struct spear_kbd *kbd = dev_id;
+ struct input_dev *input = kbd->input;
+ unsigned int key;
+ u8 sts, val;
+
+ sts = readb(kbd->io_base + STATUS_REG);
+ if (!(sts & DATA_AVAIL))
+ return IRQ_NONE;
+
+ if (kbd->last_key != KEY_RESERVED) {
+ input_report_key(input, kbd->last_key, 0);
+ kbd->last_key = KEY_RESERVED;
+ }
+
+ /* following reads active (row, col) pair */
+ val = readb(kbd->io_base + DATA_REG);
+ key = kbd->keycodes[val];
+
+ input_event(input, EV_MSC, MSC_SCAN, val);
+ input_report_key(input, key, 1);
+ input_sync(input);
+
+ kbd->last_key = key;
+
+ /* clear interrupt */
+ writeb(0, kbd->io_base + STATUS_REG);
+
+ return IRQ_HANDLED;
+}
+
+static int spear_kbd_open(struct input_dev *dev)
+{
+ struct spear_kbd *kbd = input_get_drvdata(dev);
+ int error;
+ u16 val;
+
+ kbd->last_key = KEY_RESERVED;
+
+ error = clk_enable(kbd->clk);
+ if (error)
+ return error;
+
+ /* program keyboard */
+ val = SCAN_RATE_80 | MODE_KEYBOARD | PCLK_FREQ_MSK;
+ writew(val, kbd->io_base + MODE_REG);
+ writeb(1, kbd->io_base + STATUS_REG);
+
+ /* start key scan */
+ val = readw(kbd->io_base + MODE_REG);
+ val |= START_SCAN;
+ writew(val, kbd->io_base + MODE_REG);
+
+ return 0;
+}
+
+static void spear_kbd_close(struct input_dev *dev)
+{
+ struct spear_kbd *kbd = input_get_drvdata(dev);
+ u16 val;
+
+ /* stop key scan */
+ val = readw(kbd->io_base + MODE_REG);
+ val &= ~START_SCAN;
+ writew(val, kbd->io_base + MODE_REG);
+
+ clk_disable(kbd->clk);
+
+ kbd->last_key = KEY_RESERVED;
+}
+
+static int __devinit spear_kbd_probe(struct platform_device *pdev)
+{
+ const struct kbd_platform_data *pdata = pdev->dev.platform_data;
+ const struct matrix_keymap_data *keymap;
+ struct spear_kbd *kbd;
+ struct input_dev *input_dev;
+ struct resource *res;
+ int irq;
+ int error;
+
+ if (!pdata) {
+ dev_err(&pdev->dev, "Invalid platform data\n");
+ return -EINVAL;
+ }
+
+ keymap = pdata->keymap;
+ if (!keymap) {
+ dev_err(&pdev->dev, "no keymap defined\n");
+ return -EINVAL;
+ }
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!res) {
+ dev_err(&pdev->dev, "no keyboard resource defined\n");
+ return -EBUSY;
+ }
+
+ irq = platform_get_irq(pdev, 0);
+ if (irq < 0) {
+ dev_err(&pdev->dev, "not able to get irq for the device\n");
+ return irq;
+ }
+
+ kbd = kzalloc(sizeof(*kbd), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!kbd || !input_dev) {
+ dev_err(&pdev->dev, "out of memory\n");
+ error = -ENOMEM;
+ goto err_free_mem;
+ }
+
+ kbd->input = input_dev;
+ kbd->irq = irq;
+ kbd->res = request_mem_region(res->start, resource_size(res),
+ pdev->name);
+ if (!kbd->res) {
+ dev_err(&pdev->dev, "keyboard region already claimed\n");
+ error = -EBUSY;
+ goto err_free_mem;
+ }
+
+ kbd->io_base = ioremap(res->start, resource_size(res));
+ if (!kbd->io_base) {
+ dev_err(&pdev->dev, "ioremap failed for kbd_region\n");
+ error = -ENOMEM;
+ goto err_release_mem_region;
+ }
+
+ kbd->clk = clk_get(&pdev->dev, NULL);
+ if (IS_ERR(kbd->clk)) {
+ error = PTR_ERR(kbd->clk);
+ goto err_iounmap;
+ }
+
+ input_dev->name = "Spear Keyboard";
+ input_dev->phys = "keyboard/input0";
+ input_dev->dev.parent = &pdev->dev;
+ input_dev->id.bustype = BUS_HOST;
+ input_dev->id.vendor = 0x0001;
+ input_dev->id.product = 0x0001;
+ input_dev->id.version = 0x0100;
+ input_dev->open = spear_kbd_open;
+ input_dev->close = spear_kbd_close;
+
+ __set_bit(EV_KEY, input_dev->evbit);
+ if (pdata->rep)
+ __set_bit(EV_REP, input_dev->evbit);
+ input_set_capability(input_dev, EV_MSC, MSC_SCAN);
+
+ input_dev->keycode = kbd->keycodes;
+ input_dev->keycodesize = sizeof(kbd->keycodes[0]);
+ input_dev->keycodemax = ARRAY_SIZE(kbd->keycodes);
+
+ matrix_keypad_build_keymap(keymap, ROW_SHIFT,
+ input_dev->keycode, input_dev->keybit);
+
+ input_set_drvdata(input_dev, kbd);
+
+ error = request_irq(irq, spear_kbd_interrupt, 0, "keyboard", kbd);
+ if (error) {
+ dev_err(&pdev->dev, "request_irq fail\n");
+ goto err_put_clk;
+ }
+
+ error = input_register_device(input_dev);
+ if (error) {
+ dev_err(&pdev->dev, "Unable to register keyboard device\n");
+ goto err_free_irq;
+ }
+
+ device_init_wakeup(&pdev->dev, 1);
+ platform_set_drvdata(pdev, kbd);
+
+ return 0;
+
+err_free_irq:
+ free_irq(kbd->irq, kbd);
+err_put_clk:
+ clk_put(kbd->clk);
+err_iounmap:
+ iounmap(kbd->io_base);
+err_release_mem_region:
+ release_mem_region(res->start, resource_size(res));
+err_free_mem:
+ input_free_device(input_dev);
+ kfree(kbd);
+
+ return error;
+}
+
+static int __devexit spear_kbd_remove(struct platform_device *pdev)
+{
+ struct spear_kbd *kbd = platform_get_drvdata(pdev);
+
+ free_irq(kbd->irq, kbd);
+ input_unregister_device(kbd->input);
+ clk_put(kbd->clk);
+ iounmap(kbd->io_base);
+ release_mem_region(kbd->res->start, resource_size(kbd->res));
+ kfree(kbd);
+
+ device_init_wakeup(&pdev->dev, 1);
+ platform_set_drvdata(pdev, NULL);
+
+ return 0;
+}
+
+#ifdef CONFIG_PM
+static int spear_kbd_suspend(struct device *dev)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ struct spear_kbd *kbd = platform_get_drvdata(pdev);
+ struct input_dev *input_dev = kbd->input;
+
+ mutex_lock(&input_dev->mutex);
+
+ if (input_dev->users)
+ clk_enable(kbd->clk);
+
+ if (device_may_wakeup(&pdev->dev))
+ enable_irq_wake(kbd->irq);
+
+ mutex_unlock(&input_dev->mutex);
+
+ return 0;
+}
+
+static int spear_kbd_resume(struct device *dev)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ struct spear_kbd *kbd = platform_get_drvdata(pdev);
+ struct input_dev *input_dev = kbd->input;
+
+ mutex_lock(&input_dev->mutex);
+
+ if (device_may_wakeup(&pdev->dev))
+ disable_irq_wake(kbd->irq);
+
+ if (input_dev->users)
+ clk_enable(kbd->clk);
+
+ mutex_unlock(&input_dev->mutex);
+
+ return 0;
+}
+
+static const struct dev_pm_ops spear_kbd_pm_ops = {
+ .suspend = spear_kbd_suspend,
+ .resume = spear_kbd_resume,
+};
+#endif
+
+static struct platform_driver spear_kbd_driver = {
+ .probe = spear_kbd_probe,
+ .remove = __devexit_p(spear_kbd_remove),
+ .driver = {
+ .name = "keyboard",
+ .owner = THIS_MODULE,
+#ifdef CONFIG_PM
+ .pm = &spear_kbd_pm_ops,
+#endif
+ },
+};
+
+static int __init spear_kbd_init(void)
+{
+ return platform_driver_register(&spear_kbd_driver);
+}
+module_init(spear_kbd_init);
+
+static void __exit spear_kbd_exit(void)
+{
+ platform_driver_unregister(&spear_kbd_driver);
+}
+module_exit(spear_kbd_exit);
+
+MODULE_AUTHOR("Rajeev Kumar");
+MODULE_DESCRIPTION("SPEAr Keyboard Driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/input/keyboard/stmpe-keypad.c b/drivers/input/keyboard/stmpe-keypad.c
new file mode 100644
index 0000000..ab7610c
--- /dev/null
+++ b/drivers/input/keyboard/stmpe-keypad.c
@@ -0,0 +1,386 @@
+/*
+ * Copyright (C) ST-Ericsson SA 2010
+ *
+ * License Terms: GNU General Public License, version 2
+ * Author: Rabin Vincent <rabin.vincent@stericsson.com> for ST-Ericsson
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/input.h>
+#include <linux/interrupt.h>
+#include <linux/platform_device.h>
+#include <linux/input/matrix_keypad.h>
+#include <linux/mfd/stmpe.h>
+
+/* These are at the same addresses in all STMPE variants */
+#define STMPE_KPC_COL 0x60
+#define STMPE_KPC_ROW_MSB 0x61
+#define STMPE_KPC_ROW_LSB 0x62
+#define STMPE_KPC_CTRL_MSB 0x63
+#define STMPE_KPC_CTRL_LSB 0x64
+#define STMPE_KPC_COMBI_KEY_0 0x65
+#define STMPE_KPC_COMBI_KEY_1 0x66
+#define STMPE_KPC_COMBI_KEY_2 0x67
+#define STMPE_KPC_DATA_BYTE0 0x68
+#define STMPE_KPC_DATA_BYTE1 0x69
+#define STMPE_KPC_DATA_BYTE2 0x6a
+#define STMPE_KPC_DATA_BYTE3 0x6b
+#define STMPE_KPC_DATA_BYTE4 0x6c
+
+#define STMPE_KPC_CTRL_LSB_SCAN (0x1 << 0)
+#define STMPE_KPC_CTRL_LSB_DEBOUNCE (0x7f << 1)
+#define STMPE_KPC_CTRL_MSB_SCAN_COUNT (0xf << 4)
+
+#define STMPE_KPC_ROW_MSB_ROWS 0xff
+
+#define STMPE_KPC_DATA_UP (0x1 << 7)
+#define STMPE_KPC_DATA_ROW (0xf << 3)
+#define STMPE_KPC_DATA_COL (0x7 << 0)
+#define STMPE_KPC_DATA_NOKEY_MASK 0x78
+
+#define STMPE_KEYPAD_MAX_DEBOUNCE 127
+#define STMPE_KEYPAD_MAX_SCAN_COUNT 15
+
+#define STMPE_KEYPAD_MAX_ROWS 8
+#define STMPE_KEYPAD_MAX_COLS 8
+#define STMPE_KEYPAD_ROW_SHIFT 3
+#define STMPE_KEYPAD_KEYMAP_SIZE \
+ (STMPE_KEYPAD_MAX_ROWS * STMPE_KEYPAD_MAX_COLS)
+
+/**
+ * struct stmpe_keypad_variant - model-specific attributes
+ * @auto_increment: whether the KPC_DATA_BYTE register address
+ * auto-increments on multiple read
+ * @num_data: number of data bytes
+ * @num_normal_data: number of normal keys' data bytes
+ * @max_cols: maximum number of columns supported
+ * @max_rows: maximum number of rows supported
+ * @col_gpios: bitmask of gpios which can be used for columns
+ * @row_gpios: bitmask of gpios which can be used for rows
+ */
+struct stmpe_keypad_variant {
+ bool auto_increment;
+ int num_data;
+ int num_normal_data;
+ int max_cols;
+ int max_rows;
+ unsigned int col_gpios;
+ unsigned int row_gpios;
+};
+
+static const struct stmpe_keypad_variant stmpe_keypad_variants[] = {
+ [STMPE1601] = {
+ .auto_increment = true,
+ .num_data = 5,
+ .num_normal_data = 3,
+ .max_cols = 8,
+ .max_rows = 8,
+ .col_gpios = 0x000ff, /* GPIO 0 - 7 */
+ .row_gpios = 0x0ff00, /* GPIO 8 - 15 */
+ },
+ [STMPE2401] = {
+ .auto_increment = false,
+ .num_data = 3,
+ .num_normal_data = 2,
+ .max_cols = 8,
+ .max_rows = 12,
+ .col_gpios = 0x0000ff, /* GPIO 0 - 7*/
+ .row_gpios = 0x1fef00, /* GPIO 8-14, 16-20 */
+ },
+ [STMPE2403] = {
+ .auto_increment = true,
+ .num_data = 5,
+ .num_normal_data = 3,
+ .max_cols = 8,
+ .max_rows = 12,
+ .col_gpios = 0x0000ff, /* GPIO 0 - 7*/
+ .row_gpios = 0x1fef00, /* GPIO 8-14, 16-20 */
+ },
+};
+
+struct stmpe_keypad {
+ struct stmpe *stmpe;
+ struct input_dev *input;
+ const struct stmpe_keypad_variant *variant;
+ const struct stmpe_keypad_platform_data *plat;
+
+ unsigned int rows;
+ unsigned int cols;
+
+ unsigned short keymap[STMPE_KEYPAD_KEYMAP_SIZE];
+};
+
+static int stmpe_keypad_read_data(struct stmpe_keypad *keypad, u8 *data)
+{
+ const struct stmpe_keypad_variant *variant = keypad->variant;
+ struct stmpe *stmpe = keypad->stmpe;
+ int ret;
+ int i;
+
+ if (variant->auto_increment)
+ return stmpe_block_read(stmpe, STMPE_KPC_DATA_BYTE0,
+ variant->num_data, data);
+
+ for (i = 0; i < variant->num_data; i++) {
+ ret = stmpe_reg_read(stmpe, STMPE_KPC_DATA_BYTE0 + i);
+ if (ret < 0)
+ return ret;
+
+ data[i] = ret;
+ }
+
+ return 0;
+}
+
+static irqreturn_t stmpe_keypad_irq(int irq, void *dev)
+{
+ struct stmpe_keypad *keypad = dev;
+ struct input_dev *input = keypad->input;
+ const struct stmpe_keypad_variant *variant = keypad->variant;
+ u8 fifo[variant->num_data];
+ int ret;
+ int i;
+
+ ret = stmpe_keypad_read_data(keypad, fifo);
+ if (ret < 0)
+ return IRQ_NONE;
+
+ for (i = 0; i < variant->num_normal_data; i++) {
+ u8 data = fifo[i];
+ int row = (data & STMPE_KPC_DATA_ROW) >> 3;
+ int col = data & STMPE_KPC_DATA_COL;
+ int code = MATRIX_SCAN_CODE(row, col, STMPE_KEYPAD_ROW_SHIFT);
+ bool up = data & STMPE_KPC_DATA_UP;
+
+ if ((data & STMPE_KPC_DATA_NOKEY_MASK)
+ == STMPE_KPC_DATA_NOKEY_MASK)
+ continue;
+
+ input_event(input, EV_MSC, MSC_SCAN, code);
+ input_report_key(input, keypad->keymap[code], !up);
+ input_sync(input);
+ }
+
+ return IRQ_HANDLED;
+}
+
+static int __devinit stmpe_keypad_altfunc_init(struct stmpe_keypad *keypad)
+{
+ const struct stmpe_keypad_variant *variant = keypad->variant;
+ unsigned int col_gpios = variant->col_gpios;
+ unsigned int row_gpios = variant->row_gpios;
+ struct stmpe *stmpe = keypad->stmpe;
+ unsigned int pins = 0;
+ int i;
+
+ /*
+ * Figure out which pins need to be set to the keypad alternate
+ * function.
+ *
+ * {cols,rows}_gpios are bitmasks of which pins on the chip can be used
+ * for the keypad.
+ *
+ * keypad->{cols,rows} are a bitmask of which pins (of the ones useable
+ * for the keypad) are used on the board.
+ */
+
+ for (i = 0; i < variant->max_cols; i++) {
+ int num = __ffs(col_gpios);
+
+ if (keypad->cols & (1 << i))
+ pins |= 1 << num;
+
+ col_gpios &= ~(1 << num);
+ }
+
+ for (i = 0; i < variant->max_rows; i++) {
+ int num = __ffs(row_gpios);
+
+ if (keypad->rows & (1 << i))
+ pins |= 1 << num;
+
+ row_gpios &= ~(1 << num);
+ }
+
+ return stmpe_set_altfunc(stmpe, pins, STMPE_BLOCK_KEYPAD);
+}
+
+static int __devinit stmpe_keypad_chip_init(struct stmpe_keypad *keypad)
+{
+ const struct stmpe_keypad_platform_data *plat = keypad->plat;
+ const struct stmpe_keypad_variant *variant = keypad->variant;
+ struct stmpe *stmpe = keypad->stmpe;
+ int ret;
+
+ if (plat->debounce_ms > STMPE_KEYPAD_MAX_DEBOUNCE)
+ return -EINVAL;
+
+ if (plat->scan_count > STMPE_KEYPAD_MAX_SCAN_COUNT)
+ return -EINVAL;
+
+ ret = stmpe_enable(stmpe, STMPE_BLOCK_KEYPAD);
+ if (ret < 0)
+ return ret;
+
+ ret = stmpe_keypad_altfunc_init(keypad);
+ if (ret < 0)
+ return ret;
+
+ ret = stmpe_reg_write(stmpe, STMPE_KPC_COL, keypad->cols);
+ if (ret < 0)
+ return ret;
+
+ ret = stmpe_reg_write(stmpe, STMPE_KPC_ROW_LSB, keypad->rows);
+ if (ret < 0)
+ return ret;
+
+ if (variant->max_rows > 8) {
+ ret = stmpe_set_bits(stmpe, STMPE_KPC_ROW_MSB,
+ STMPE_KPC_ROW_MSB_ROWS,
+ keypad->rows >> 8);
+ if (ret < 0)
+ return ret;
+ }
+
+ ret = stmpe_set_bits(stmpe, STMPE_KPC_CTRL_MSB,
+ STMPE_KPC_CTRL_MSB_SCAN_COUNT,
+ plat->scan_count << 4);
+ if (ret < 0)
+ return ret;
+
+ return stmpe_set_bits(stmpe, STMPE_KPC_CTRL_LSB,
+ STMPE_KPC_CTRL_LSB_SCAN |
+ STMPE_KPC_CTRL_LSB_DEBOUNCE,
+ STMPE_KPC_CTRL_LSB_SCAN |
+ (plat->debounce_ms << 1));
+}
+
+static int __devinit stmpe_keypad_probe(struct platform_device *pdev)
+{
+ struct stmpe *stmpe = dev_get_drvdata(pdev->dev.parent);
+ struct stmpe_keypad_platform_data *plat;
+ struct stmpe_keypad *keypad;
+ struct input_dev *input;
+ int ret;
+ int irq;
+ int i;
+
+ plat = stmpe->pdata->keypad;
+ if (!plat)
+ return -ENODEV;
+
+ irq = platform_get_irq(pdev, 0);
+ if (irq < 0)
+ return irq;
+
+ keypad = kzalloc(sizeof(struct stmpe_keypad), GFP_KERNEL);
+ if (!keypad)
+ return -ENOMEM;
+
+ input = input_allocate_device();
+ if (!input) {
+ ret = -ENOMEM;
+ goto out_freekeypad;
+ }
+
+ input->name = "STMPE keypad";
+ input->id.bustype = BUS_I2C;
+ input->dev.parent = &pdev->dev;
+
+ input_set_capability(input, EV_MSC, MSC_SCAN);
+
+ __set_bit(EV_KEY, input->evbit);
+ if (!plat->no_autorepeat)
+ __set_bit(EV_REP, input->evbit);
+
+ input->keycode = keypad->keymap;
+ input->keycodesize = sizeof(keypad->keymap[0]);
+ input->keycodemax = ARRAY_SIZE(keypad->keymap);
+
+ matrix_keypad_build_keymap(plat->keymap_data, STMPE_KEYPAD_ROW_SHIFT,
+ input->keycode, input->keybit);
+
+ for (i = 0; i < plat->keymap_data->keymap_size; i++) {
+ unsigned int key = plat->keymap_data->keymap[i];
+
+ keypad->cols |= 1 << KEY_COL(key);
+ keypad->rows |= 1 << KEY_ROW(key);
+ }
+
+ keypad->stmpe = stmpe;
+ keypad->plat = plat;
+ keypad->input = input;
+ keypad->variant = &stmpe_keypad_variants[stmpe->partnum];
+
+ ret = stmpe_keypad_chip_init(keypad);
+ if (ret < 0)
+ goto out_freeinput;
+
+ ret = input_register_device(input);
+ if (ret) {
+ dev_err(&pdev->dev,
+ "unable to register input device: %d\n", ret);
+ goto out_freeinput;
+ }
+
+ ret = request_threaded_irq(irq, NULL, stmpe_keypad_irq, IRQF_ONESHOT,
+ "stmpe-keypad", keypad);
+ if (ret) {
+ dev_err(&pdev->dev, "unable to get irq: %d\n", ret);
+ goto out_unregisterinput;
+ }
+
+ platform_set_drvdata(pdev, keypad);
+
+ return 0;
+
+out_unregisterinput:
+ input_unregister_device(input);
+ input = NULL;
+out_freeinput:
+ input_free_device(input);
+out_freekeypad:
+ kfree(keypad);
+ return ret;
+}
+
+static int __devexit stmpe_keypad_remove(struct platform_device *pdev)
+{
+ struct stmpe_keypad *keypad = platform_get_drvdata(pdev);
+ struct stmpe *stmpe = keypad->stmpe;
+ int irq = platform_get_irq(pdev, 0);
+
+ stmpe_disable(stmpe, STMPE_BLOCK_KEYPAD);
+
+ free_irq(irq, keypad);
+ input_unregister_device(keypad->input);
+ platform_set_drvdata(pdev, NULL);
+ kfree(keypad);
+
+ return 0;
+}
+
+static struct platform_driver stmpe_keypad_driver = {
+ .driver.name = "stmpe-keypad",
+ .driver.owner = THIS_MODULE,
+ .probe = stmpe_keypad_probe,
+ .remove = __devexit_p(stmpe_keypad_remove),
+};
+
+static int __init stmpe_keypad_init(void)
+{
+ return platform_driver_register(&stmpe_keypad_driver);
+}
+module_init(stmpe_keypad_init);
+
+static void __exit stmpe_keypad_exit(void)
+{
+ platform_driver_unregister(&stmpe_keypad_driver);
+}
+module_exit(stmpe_keypad_exit);
+
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("STMPExxxx keypad driver");
+MODULE_AUTHOR("Rabin Vincent <rabin.vincent@stericsson.com>");
diff --git a/drivers/input/keyboard/stowaway.c b/drivers/input/keyboard/stowaway.c
new file mode 100644
index 0000000..7437219
--- /dev/null
+++ b/drivers/input/keyboard/stowaway.c
@@ -0,0 +1,184 @@
+/*
+ * Stowaway keyboard driver for Linux
+ */
+
+/*
+ * Copyright (c) 2006 Marek Vasut
+ *
+ * Based on Newton keyboard driver for Linux
+ * by Justin Cormack
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * Should you need to contact me, the author, you can do so either by
+ * e-mail - mail your message to <marek.vasut@gmail.com>, or by paper mail:
+ * Marek Vasut, Liskovecka 559, Frydek-Mistek, 738 01 Czech Republic
+ */
+
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/input.h>
+#include <linux/init.h>
+#include <linux/serio.h>
+
+#define DRIVER_DESC "Stowaway keyboard driver"
+
+MODULE_AUTHOR("Marek Vasut <marek.vasut@gmail.com>");
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+#define SKBD_KEY_MASK 0x7f
+#define SKBD_RELEASE 0x80
+
+static unsigned char skbd_keycode[128] = {
+ KEY_1, KEY_2, KEY_3, KEY_Z, KEY_4, KEY_5, KEY_6, KEY_7,
+ 0, KEY_Q, KEY_W, KEY_E, KEY_R, KEY_T, KEY_Y, KEY_GRAVE,
+ KEY_X, KEY_A, KEY_S, KEY_D, KEY_F, KEY_G, KEY_H, KEY_SPACE,
+ KEY_CAPSLOCK, KEY_TAB, KEY_LEFTCTRL, 0, 0, 0, 0, 0,
+ 0, 0, 0, KEY_LEFTALT, 0, 0, 0, 0,
+ 0, 0, 0, 0, KEY_C, KEY_V, KEY_B, KEY_N,
+ KEY_MINUS, KEY_EQUAL, KEY_BACKSPACE, KEY_HOME, KEY_8, KEY_9, KEY_0, KEY_ESC,
+ KEY_LEFTBRACE, KEY_RIGHTBRACE, KEY_BACKSLASH, KEY_END, KEY_U, KEY_I, KEY_O, KEY_P,
+ KEY_APOSTROPHE, KEY_ENTER, KEY_PAGEUP,0, KEY_J, KEY_K, KEY_L, KEY_SEMICOLON,
+ KEY_SLASH, KEY_UP, KEY_PAGEDOWN, 0,KEY_M, KEY_COMMA, KEY_DOT, KEY_INSERT,
+ KEY_DELETE, KEY_LEFT, KEY_DOWN, KEY_RIGHT, 0, 0, 0,
+ KEY_LEFTSHIFT, KEY_RIGHTSHIFT, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, KEY_F1, KEY_F2, KEY_F3, KEY_F4, KEY_F5, KEY_F6, KEY_F7,
+ KEY_F8, KEY_F9, KEY_F10, KEY_F11, KEY_F12, 0, 0, 0
+};
+
+struct skbd {
+ unsigned char keycode[128];
+ struct input_dev *dev;
+ struct serio *serio;
+ char phys[32];
+};
+
+static irqreturn_t skbd_interrupt(struct serio *serio, unsigned char data,
+ unsigned int flags)
+{
+ struct skbd *skbd = serio_get_drvdata(serio);
+ struct input_dev *dev = skbd->dev;
+
+ if (skbd->keycode[data & SKBD_KEY_MASK]) {
+ input_report_key(dev, skbd->keycode[data & SKBD_KEY_MASK],
+ !(data & SKBD_RELEASE));
+ input_sync(dev);
+ }
+
+ return IRQ_HANDLED;
+}
+
+static int skbd_connect(struct serio *serio, struct serio_driver *drv)
+{
+ struct skbd *skbd;
+ struct input_dev *input_dev;
+ int err = -ENOMEM;
+ int i;
+
+ skbd = kzalloc(sizeof(struct skbd), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!skbd || !input_dev)
+ goto fail1;
+
+ skbd->serio = serio;
+ skbd->dev = input_dev;
+ snprintf(skbd->phys, sizeof(skbd->phys), "%s/input0", serio->phys);
+ memcpy(skbd->keycode, skbd_keycode, sizeof(skbd->keycode));
+
+ input_dev->name = "Stowaway Keyboard";
+ input_dev->phys = skbd->phys;
+ input_dev->id.bustype = BUS_RS232;
+ input_dev->id.vendor = SERIO_STOWAWAY;
+ input_dev->id.product = 0x0001;
+ input_dev->id.version = 0x0100;
+ input_dev->dev.parent = &serio->dev;
+
+ input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP);
+ input_dev->keycode = skbd->keycode;
+ input_dev->keycodesize = sizeof(unsigned char);
+ input_dev->keycodemax = ARRAY_SIZE(skbd_keycode);
+ for (i = 0; i < ARRAY_SIZE(skbd_keycode); i++)
+ set_bit(skbd_keycode[i], input_dev->keybit);
+ clear_bit(0, input_dev->keybit);
+
+ serio_set_drvdata(serio, skbd);
+
+ err = serio_open(serio, drv);
+ if (err)
+ goto fail2;
+
+ err = input_register_device(skbd->dev);
+ if (err)
+ goto fail3;
+
+ return 0;
+
+ fail3: serio_close(serio);
+ fail2: serio_set_drvdata(serio, NULL);
+ fail1: input_free_device(input_dev);
+ kfree(skbd);
+ return err;
+}
+
+static void skbd_disconnect(struct serio *serio)
+{
+ struct skbd *skbd = serio_get_drvdata(serio);
+
+ serio_close(serio);
+ serio_set_drvdata(serio, NULL);
+ input_unregister_device(skbd->dev);
+ kfree(skbd);
+}
+
+static struct serio_device_id skbd_serio_ids[] = {
+ {
+ .type = SERIO_RS232,
+ .proto = SERIO_STOWAWAY,
+ .id = SERIO_ANY,
+ .extra = SERIO_ANY,
+ },
+ { 0 }
+};
+
+MODULE_DEVICE_TABLE(serio, skbd_serio_ids);
+
+static struct serio_driver skbd_drv = {
+ .driver = {
+ .name = "stowaway",
+ },
+ .description = DRIVER_DESC,
+ .id_table = skbd_serio_ids,
+ .interrupt = skbd_interrupt,
+ .connect = skbd_connect,
+ .disconnect = skbd_disconnect,
+};
+
+static int __init skbd_init(void)
+{
+ return serio_register_driver(&skbd_drv);
+}
+
+static void __exit skbd_exit(void)
+{
+ serio_unregister_driver(&skbd_drv);
+}
+
+module_init(skbd_init);
+module_exit(skbd_exit);
diff --git a/drivers/input/keyboard/sunkbd.c b/drivers/input/keyboard/sunkbd.c
new file mode 100644
index 0000000..a99a04b
--- /dev/null
+++ b/drivers/input/keyboard/sunkbd.c
@@ -0,0 +1,387 @@
+/*
+ * Copyright (c) 1999-2001 Vojtech Pavlik
+ */
+
+/*
+ * Sun keyboard driver for Linux
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * Should you need to contact me, the author, you can do so either by
+ * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
+ * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
+ */
+
+#include <linux/delay.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/interrupt.h>
+#include <linux/init.h>
+#include <linux/input.h>
+#include <linux/serio.h>
+#include <linux/workqueue.h>
+
+#define DRIVER_DESC "Sun keyboard driver"
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+static unsigned char sunkbd_keycode[128] = {
+ 0,128,114,129,115, 59, 60, 68, 61, 87, 62, 88, 63,100, 64,112,
+ 65, 66, 67, 56,103,119, 99, 70,105,130,131,108,106, 1, 2, 3,
+ 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 41, 14,110,113, 98, 55,
+ 116,132, 83,133,102, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25,
+ 26, 27,111,127, 71, 72, 73, 74,134,135,107, 0, 29, 30, 31, 32,
+ 33, 34, 35, 36, 37, 38, 39, 40, 43, 28, 96, 75, 76, 77, 82,136,
+ 104,137, 69, 42, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54,101,
+ 79, 80, 81, 0, 0, 0,138, 58,125, 57,126,109, 86, 78
+};
+
+#define SUNKBD_CMD_RESET 0x1
+#define SUNKBD_CMD_BELLON 0x2
+#define SUNKBD_CMD_BELLOFF 0x3
+#define SUNKBD_CMD_CLICK 0xa
+#define SUNKBD_CMD_NOCLICK 0xb
+#define SUNKBD_CMD_SETLED 0xe
+#define SUNKBD_CMD_LAYOUT 0xf
+
+#define SUNKBD_RET_RESET 0xff
+#define SUNKBD_RET_ALLUP 0x7f
+#define SUNKBD_RET_LAYOUT 0xfe
+
+#define SUNKBD_LAYOUT_5_MASK 0x20
+#define SUNKBD_RELEASE 0x80
+#define SUNKBD_KEY 0x7f
+
+/*
+ * Per-keyboard data.
+ */
+
+struct sunkbd {
+ unsigned char keycode[ARRAY_SIZE(sunkbd_keycode)];
+ struct input_dev *dev;
+ struct serio *serio;
+ struct work_struct tq;
+ wait_queue_head_t wait;
+ char name[64];
+ char phys[32];
+ char type;
+ bool enabled;
+ volatile s8 reset;
+ volatile s8 layout;
+};
+
+/*
+ * sunkbd_interrupt() is called by the low level driver when a character
+ * is received.
+ */
+
+static irqreturn_t sunkbd_interrupt(struct serio *serio,
+ unsigned char data, unsigned int flags)
+{
+ struct sunkbd *sunkbd = serio_get_drvdata(serio);
+
+ if (sunkbd->reset <= -1) {
+ /*
+ * If cp[i] is 0xff, sunkbd->reset will stay -1.
+ * The keyboard sends 0xff 0xff 0xID on powerup.
+ */
+ sunkbd->reset = data;
+ wake_up_interruptible(&sunkbd->wait);
+ goto out;
+ }
+
+ if (sunkbd->layout == -1) {
+ sunkbd->layout = data;
+ wake_up_interruptible(&sunkbd->wait);
+ goto out;
+ }
+
+ switch (data) {
+
+ case SUNKBD_RET_RESET:
+ schedule_work(&sunkbd->tq);
+ sunkbd->reset = -1;
+ break;
+
+ case SUNKBD_RET_LAYOUT:
+ sunkbd->layout = -1;
+ break;
+
+ case SUNKBD_RET_ALLUP: /* All keys released */
+ break;
+
+ default:
+ if (!sunkbd->enabled)
+ break;
+
+ if (sunkbd->keycode[data & SUNKBD_KEY]) {
+ input_report_key(sunkbd->dev,
+ sunkbd->keycode[data & SUNKBD_KEY],
+ !(data & SUNKBD_RELEASE));
+ input_sync(sunkbd->dev);
+ } else {
+ printk(KERN_WARNING
+ "sunkbd.c: Unknown key (scancode %#x) %s.\n",
+ data & SUNKBD_KEY,
+ data & SUNKBD_RELEASE ? "released" : "pressed");
+ }
+ }
+out:
+ return IRQ_HANDLED;
+}
+
+/*
+ * sunkbd_event() handles events from the input module.
+ */
+
+static int sunkbd_event(struct input_dev *dev,
+ unsigned int type, unsigned int code, int value)
+{
+ struct sunkbd *sunkbd = input_get_drvdata(dev);
+
+ switch (type) {
+
+ case EV_LED:
+
+ serio_write(sunkbd->serio, SUNKBD_CMD_SETLED);
+ serio_write(sunkbd->serio,
+ (!!test_bit(LED_CAPSL, dev->led) << 3) |
+ (!!test_bit(LED_SCROLLL, dev->led) << 2) |
+ (!!test_bit(LED_COMPOSE, dev->led) << 1) |
+ !!test_bit(LED_NUML, dev->led));
+ return 0;
+
+ case EV_SND:
+
+ switch (code) {
+
+ case SND_CLICK:
+ serio_write(sunkbd->serio, SUNKBD_CMD_NOCLICK - value);
+ return 0;
+
+ case SND_BELL:
+ serio_write(sunkbd->serio, SUNKBD_CMD_BELLOFF - value);
+ return 0;
+ }
+
+ break;
+ }
+
+ return -1;
+}
+
+/*
+ * sunkbd_initialize() checks for a Sun keyboard attached, and determines
+ * its type.
+ */
+
+static int sunkbd_initialize(struct sunkbd *sunkbd)
+{
+ sunkbd->reset = -2;
+ serio_write(sunkbd->serio, SUNKBD_CMD_RESET);
+ wait_event_interruptible_timeout(sunkbd->wait, sunkbd->reset >= 0, HZ);
+ if (sunkbd->reset < 0)
+ return -1;
+
+ sunkbd->type = sunkbd->reset;
+
+ if (sunkbd->type == 4) { /* Type 4 keyboard */
+ sunkbd->layout = -2;
+ serio_write(sunkbd->serio, SUNKBD_CMD_LAYOUT);
+ wait_event_interruptible_timeout(sunkbd->wait,
+ sunkbd->layout >= 0, HZ / 4);
+ if (sunkbd->layout < 0)
+ return -1;
+ if (sunkbd->layout & SUNKBD_LAYOUT_5_MASK)
+ sunkbd->type = 5;
+ }
+
+ return 0;
+}
+
+/*
+ * sunkbd_reinit() sets leds and beeps to a state the computer remembers they
+ * were in.
+ */
+
+static void sunkbd_reinit(struct work_struct *work)
+{
+ struct sunkbd *sunkbd = container_of(work, struct sunkbd, tq);
+
+ wait_event_interruptible_timeout(sunkbd->wait, sunkbd->reset >= 0, HZ);
+
+ serio_write(sunkbd->serio, SUNKBD_CMD_SETLED);
+ serio_write(sunkbd->serio,
+ (!!test_bit(LED_CAPSL, sunkbd->dev->led) << 3) |
+ (!!test_bit(LED_SCROLLL, sunkbd->dev->led) << 2) |
+ (!!test_bit(LED_COMPOSE, sunkbd->dev->led) << 1) |
+ !!test_bit(LED_NUML, sunkbd->dev->led));
+ serio_write(sunkbd->serio,
+ SUNKBD_CMD_NOCLICK - !!test_bit(SND_CLICK, sunkbd->dev->snd));
+ serio_write(sunkbd->serio,
+ SUNKBD_CMD_BELLOFF - !!test_bit(SND_BELL, sunkbd->dev->snd));
+}
+
+static void sunkbd_enable(struct sunkbd *sunkbd, bool enable)
+{
+ serio_pause_rx(sunkbd->serio);
+ sunkbd->enabled = enable;
+ serio_continue_rx(sunkbd->serio);
+}
+
+/*
+ * sunkbd_connect() probes for a Sun keyboard and fills the necessary
+ * structures.
+ */
+
+static int sunkbd_connect(struct serio *serio, struct serio_driver *drv)
+{
+ struct sunkbd *sunkbd;
+ struct input_dev *input_dev;
+ int err = -ENOMEM;
+ int i;
+
+ sunkbd = kzalloc(sizeof(struct sunkbd), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!sunkbd || !input_dev)
+ goto fail1;
+
+ sunkbd->serio = serio;
+ sunkbd->dev = input_dev;
+ init_waitqueue_head(&sunkbd->wait);
+ INIT_WORK(&sunkbd->tq, sunkbd_reinit);
+ snprintf(sunkbd->phys, sizeof(sunkbd->phys), "%s/input0", serio->phys);
+
+ serio_set_drvdata(serio, sunkbd);
+
+ err = serio_open(serio, drv);
+ if (err)
+ goto fail2;
+
+ if (sunkbd_initialize(sunkbd) < 0) {
+ err = -ENODEV;
+ goto fail3;
+ }
+
+ snprintf(sunkbd->name, sizeof(sunkbd->name),
+ "Sun Type %d keyboard", sunkbd->type);
+ memcpy(sunkbd->keycode, sunkbd_keycode, sizeof(sunkbd->keycode));
+
+ input_dev->name = sunkbd->name;
+ input_dev->phys = sunkbd->phys;
+ input_dev->id.bustype = BUS_RS232;
+ input_dev->id.vendor = SERIO_SUNKBD;
+ input_dev->id.product = sunkbd->type;
+ input_dev->id.version = 0x0100;
+ input_dev->dev.parent = &serio->dev;
+
+ input_set_drvdata(input_dev, sunkbd);
+
+ input_dev->event = sunkbd_event;
+
+ input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_LED) |
+ BIT_MASK(EV_SND) | BIT_MASK(EV_REP);
+ input_dev->ledbit[0] = BIT_MASK(LED_CAPSL) | BIT_MASK(LED_COMPOSE) |
+ BIT_MASK(LED_SCROLLL) | BIT_MASK(LED_NUML);
+ input_dev->sndbit[0] = BIT_MASK(SND_CLICK) | BIT_MASK(SND_BELL);
+
+ input_dev->keycode = sunkbd->keycode;
+ input_dev->keycodesize = sizeof(unsigned char);
+ input_dev->keycodemax = ARRAY_SIZE(sunkbd_keycode);
+ for (i = 0; i < ARRAY_SIZE(sunkbd_keycode); i++)
+ __set_bit(sunkbd->keycode[i], input_dev->keybit);
+ __clear_bit(KEY_RESERVED, input_dev->keybit);
+
+ sunkbd_enable(sunkbd, true);
+
+ err = input_register_device(sunkbd->dev);
+ if (err)
+ goto fail4;
+
+ return 0;
+
+ fail4: sunkbd_enable(sunkbd, false);
+ fail3: serio_close(serio);
+ fail2: serio_set_drvdata(serio, NULL);
+ fail1: input_free_device(input_dev);
+ kfree(sunkbd);
+ return err;
+}
+
+/*
+ * sunkbd_disconnect() unregisters and closes behind us.
+ */
+
+static void sunkbd_disconnect(struct serio *serio)
+{
+ struct sunkbd *sunkbd = serio_get_drvdata(serio);
+
+ sunkbd_enable(sunkbd, false);
+ input_unregister_device(sunkbd->dev);
+ serio_close(serio);
+ serio_set_drvdata(serio, NULL);
+ kfree(sunkbd);
+}
+
+static struct serio_device_id sunkbd_serio_ids[] = {
+ {
+ .type = SERIO_RS232,
+ .proto = SERIO_SUNKBD,
+ .id = SERIO_ANY,
+ .extra = SERIO_ANY,
+ },
+ {
+ .type = SERIO_RS232,
+ .proto = SERIO_UNKNOWN, /* sunkbd does probe */
+ .id = SERIO_ANY,
+ .extra = SERIO_ANY,
+ },
+ { 0 }
+};
+
+MODULE_DEVICE_TABLE(serio, sunkbd_serio_ids);
+
+static struct serio_driver sunkbd_drv = {
+ .driver = {
+ .name = "sunkbd",
+ },
+ .description = DRIVER_DESC,
+ .id_table = sunkbd_serio_ids,
+ .interrupt = sunkbd_interrupt,
+ .connect = sunkbd_connect,
+ .disconnect = sunkbd_disconnect,
+};
+
+/*
+ * The functions for insering/removing us as a module.
+ */
+
+static int __init sunkbd_init(void)
+{
+ return serio_register_driver(&sunkbd_drv);
+}
+
+static void __exit sunkbd_exit(void)
+{
+ serio_unregister_driver(&sunkbd_drv);
+}
+
+module_init(sunkbd_init);
+module_exit(sunkbd_exit);
diff --git a/drivers/input/keyboard/tc3589x-keypad.c b/drivers/input/keyboard/tc3589x-keypad.c
new file mode 100644
index 0000000..f60c9e8
--- /dev/null
+++ b/drivers/input/keyboard/tc3589x-keypad.c
@@ -0,0 +1,472 @@
+/*
+ * Copyright (C) ST-Ericsson SA 2010
+ *
+ * Author: Jayeeta Banerjee <jayeeta.banerjee@stericsson.com>
+ * Author: Sundar Iyer <sundar.iyer@stericsson.com>
+ *
+ * License Terms: GNU General Public License, version 2
+ *
+ * TC35893 MFD Keypad Controller driver
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/input.h>
+#include <linux/platform_device.h>
+#include <linux/input/matrix_keypad.h>
+#include <linux/i2c.h>
+#include <linux/slab.h>
+#include <linux/mfd/tc3589x.h>
+
+/* Maximum supported keypad matrix row/columns size */
+#define TC3589x_MAX_KPROW 8
+#define TC3589x_MAX_KPCOL 12
+
+/* keypad related Constants */
+#define TC3589x_MAX_DEBOUNCE_SETTLE 0xFF
+#define DEDICATED_KEY_VAL 0xFF
+
+/* Pull up/down masks */
+#define TC3589x_NO_PULL_MASK 0x0
+#define TC3589x_PULL_DOWN_MASK 0x1
+#define TC3589x_PULL_UP_MASK 0x2
+#define TC3589x_PULLUP_ALL_MASK 0xAA
+#define TC3589x_IO_PULL_VAL(index, mask) ((mask)<<((index)%4)*2))
+
+/* Bit masks for IOCFG register */
+#define IOCFG_BALLCFG 0x01
+#define IOCFG_IG 0x08
+
+#define KP_EVCODE_COL_MASK 0x0F
+#define KP_EVCODE_ROW_MASK 0x70
+#define KP_RELEASE_EVT_MASK 0x80
+
+#define KP_ROW_SHIFT 4
+
+#define KP_NO_VALID_KEY_MASK 0x7F
+
+/* bit masks for RESTCTRL register */
+#define TC3589x_KBDRST 0x2
+#define TC3589x_IRQRST 0x10
+#define TC3589x_RESET_ALL 0x1B
+
+/* KBDMFS register bit mask */
+#define TC3589x_KBDMFS_EN 0x1
+
+/* CLKEN register bitmask */
+#define KPD_CLK_EN 0x1
+
+/* RSTINTCLR register bit mask */
+#define IRQ_CLEAR 0x1
+
+/* bit masks for keyboard interrupts*/
+#define TC3589x_EVT_LOSS_INT 0x8
+#define TC3589x_EVT_INT 0x4
+#define TC3589x_KBD_LOSS_INT 0x2
+#define TC3589x_KBD_INT 0x1
+
+/* bit masks for keyboard interrupt clear*/
+#define TC3589x_EVT_INT_CLR 0x2
+#define TC3589x_KBD_INT_CLR 0x1
+
+#define TC3589x_KBD_KEYMAP_SIZE 64
+
+/**
+ * struct tc_keypad - data structure used by keypad driver
+ * @input: pointer to input device object
+ * @board: keypad platform device
+ * @krow: number of rows
+ * @kcol: number of coloumns
+ * @keymap: matrix scan code table for keycodes
+ */
+struct tc_keypad {
+ struct tc3589x *tc3589x;
+ struct input_dev *input;
+ const struct tc3589x_keypad_platform_data *board;
+ unsigned int krow;
+ unsigned int kcol;
+ unsigned short keymap[TC3589x_KBD_KEYMAP_SIZE];
+ bool keypad_stopped;
+};
+
+static int tc3589x_keypad_init_key_hardware(struct tc_keypad *keypad)
+{
+ int ret;
+ struct tc3589x *tc3589x = keypad->tc3589x;
+ u8 settle_time = keypad->board->settle_time;
+ u8 dbounce_period = keypad->board->debounce_period;
+ u8 rows = keypad->board->krow & 0xf; /* mask out the nibble */
+ u8 column = keypad->board->kcol & 0xf; /* mask out the nibble */
+
+ /* validate platform configurations */
+ if (keypad->board->kcol > TC3589x_MAX_KPCOL ||
+ keypad->board->krow > TC3589x_MAX_KPROW ||
+ keypad->board->debounce_period > TC3589x_MAX_DEBOUNCE_SETTLE ||
+ keypad->board->settle_time > TC3589x_MAX_DEBOUNCE_SETTLE)
+ return -EINVAL;
+
+ /* configure KBDSIZE 4 LSbits for cols and 4 MSbits for rows */
+ ret = tc3589x_reg_write(tc3589x, TC3589x_KBDSIZE,
+ (rows << KP_ROW_SHIFT) | column);
+ if (ret < 0)
+ return ret;
+
+ /* configure dedicated key config, no dedicated key selected */
+ ret = tc3589x_reg_write(tc3589x, TC3589x_KBCFG_LSB, DEDICATED_KEY_VAL);
+ if (ret < 0)
+ return ret;
+
+ ret = tc3589x_reg_write(tc3589x, TC3589x_KBCFG_MSB, DEDICATED_KEY_VAL);
+ if (ret < 0)
+ return ret;
+
+ /* Configure settle time */
+ ret = tc3589x_reg_write(tc3589x, TC3589x_KBDSETTLE_REG, settle_time);
+ if (ret < 0)
+ return ret;
+
+ /* Configure debounce time */
+ ret = tc3589x_reg_write(tc3589x, TC3589x_KBDBOUNCE, dbounce_period);
+ if (ret < 0)
+ return ret;
+
+ /* Start of initialise keypad GPIOs */
+ ret = tc3589x_set_bits(tc3589x, TC3589x_IOCFG, 0x0, IOCFG_IG);
+ if (ret < 0)
+ return ret;
+
+ /* Configure pull-up resistors for all row GPIOs */
+ ret = tc3589x_reg_write(tc3589x, TC3589x_IOPULLCFG0_LSB,
+ TC3589x_PULLUP_ALL_MASK);
+ if (ret < 0)
+ return ret;
+
+ ret = tc3589x_reg_write(tc3589x, TC3589x_IOPULLCFG0_MSB,
+ TC3589x_PULLUP_ALL_MASK);
+ if (ret < 0)
+ return ret;
+
+ /* Configure pull-up resistors for all column GPIOs */
+ ret = tc3589x_reg_write(tc3589x, TC3589x_IOPULLCFG1_LSB,
+ TC3589x_PULLUP_ALL_MASK);
+ if (ret < 0)
+ return ret;
+
+ ret = tc3589x_reg_write(tc3589x, TC3589x_IOPULLCFG1_MSB,
+ TC3589x_PULLUP_ALL_MASK);
+ if (ret < 0)
+ return ret;
+
+ ret = tc3589x_reg_write(tc3589x, TC3589x_IOPULLCFG2_LSB,
+ TC3589x_PULLUP_ALL_MASK);
+
+ return ret;
+}
+
+#define TC35893_DATA_REGS 4
+#define TC35893_KEYCODE_FIFO_EMPTY 0x7f
+#define TC35893_KEYCODE_FIFO_CLEAR 0xff
+#define TC35893_KEYPAD_ROW_SHIFT 0x3
+
+static irqreturn_t tc3589x_keypad_irq(int irq, void *dev)
+{
+ struct tc_keypad *keypad = dev;
+ struct tc3589x *tc3589x = keypad->tc3589x;
+ u8 i, row_index, col_index, kbd_code, up;
+ u8 code;
+
+ for (i = 0; i < TC35893_DATA_REGS * 2; i++) {
+ kbd_code = tc3589x_reg_read(tc3589x, TC3589x_EVTCODE_FIFO);
+
+ /* loop till fifo is empty and no more keys are pressed */
+ if (kbd_code == TC35893_KEYCODE_FIFO_EMPTY ||
+ kbd_code == TC35893_KEYCODE_FIFO_CLEAR)
+ continue;
+
+ /* valid key is found */
+ col_index = kbd_code & KP_EVCODE_COL_MASK;
+ row_index = (kbd_code & KP_EVCODE_ROW_MASK) >> KP_ROW_SHIFT;
+ code = MATRIX_SCAN_CODE(row_index, col_index,
+ TC35893_KEYPAD_ROW_SHIFT);
+ up = kbd_code & KP_RELEASE_EVT_MASK;
+
+ input_event(keypad->input, EV_MSC, MSC_SCAN, code);
+ input_report_key(keypad->input, keypad->keymap[code], !up);
+ input_sync(keypad->input);
+ }
+
+ /* clear IRQ */
+ tc3589x_set_bits(tc3589x, TC3589x_KBDIC,
+ 0x0, TC3589x_EVT_INT_CLR | TC3589x_KBD_INT_CLR);
+ /* enable IRQ */
+ tc3589x_set_bits(tc3589x, TC3589x_KBDMSK,
+ 0x0, TC3589x_EVT_LOSS_INT | TC3589x_EVT_INT);
+
+ return IRQ_HANDLED;
+}
+
+static int tc3589x_keypad_enable(struct tc_keypad *keypad)
+{
+ struct tc3589x *tc3589x = keypad->tc3589x;
+ int ret;
+
+ /* pull the keypad module out of reset */
+ ret = tc3589x_set_bits(tc3589x, TC3589x_RSTCTRL, TC3589x_KBDRST, 0x0);
+ if (ret < 0)
+ return ret;
+
+ /* configure KBDMFS */
+ ret = tc3589x_set_bits(tc3589x, TC3589x_KBDMFS, 0x0, TC3589x_KBDMFS_EN);
+ if (ret < 0)
+ return ret;
+
+ /* enable the keypad clock */
+ ret = tc3589x_set_bits(tc3589x, TC3589x_CLKEN, 0x0, KPD_CLK_EN);
+ if (ret < 0)
+ return ret;
+
+ /* clear pending IRQs */
+ ret = tc3589x_set_bits(tc3589x, TC3589x_RSTINTCLR, 0x0, 0x1);
+ if (ret < 0)
+ return ret;
+
+ /* enable the IRQs */
+ ret = tc3589x_set_bits(tc3589x, TC3589x_KBDMSK, 0x0,
+ TC3589x_EVT_LOSS_INT | TC3589x_EVT_INT);
+ if (ret < 0)
+ return ret;
+
+ keypad->keypad_stopped = false;
+
+ return ret;
+}
+
+static int tc3589x_keypad_disable(struct tc_keypad *keypad)
+{
+ struct tc3589x *tc3589x = keypad->tc3589x;
+ int ret;
+
+ /* clear IRQ */
+ ret = tc3589x_set_bits(tc3589x, TC3589x_KBDIC,
+ 0x0, TC3589x_EVT_INT_CLR | TC3589x_KBD_INT_CLR);
+ if (ret < 0)
+ return ret;
+
+ /* disable all interrupts */
+ ret = tc3589x_set_bits(tc3589x, TC3589x_KBDMSK,
+ ~(TC3589x_EVT_LOSS_INT | TC3589x_EVT_INT), 0x0);
+ if (ret < 0)
+ return ret;
+
+ /* disable the keypad module */
+ ret = tc3589x_set_bits(tc3589x, TC3589x_CLKEN, 0x1, 0x0);
+ if (ret < 0)
+ return ret;
+
+ /* put the keypad module into reset */
+ ret = tc3589x_set_bits(tc3589x, TC3589x_RSTCTRL, TC3589x_KBDRST, 0x1);
+
+ keypad->keypad_stopped = true;
+
+ return ret;
+}
+
+static int tc3589x_keypad_open(struct input_dev *input)
+{
+ int error;
+ struct tc_keypad *keypad = input_get_drvdata(input);
+
+ /* enable the keypad module */
+ error = tc3589x_keypad_enable(keypad);
+ if (error < 0) {
+ dev_err(&input->dev, "failed to enable keypad module\n");
+ return error;
+ }
+
+ error = tc3589x_keypad_init_key_hardware(keypad);
+ if (error < 0) {
+ dev_err(&input->dev, "failed to configure keypad module\n");
+ return error;
+ }
+
+ return 0;
+}
+
+static void tc3589x_keypad_close(struct input_dev *input)
+{
+ struct tc_keypad *keypad = input_get_drvdata(input);
+
+ /* disable the keypad module */
+ tc3589x_keypad_disable(keypad);
+}
+
+static int __devinit tc3589x_keypad_probe(struct platform_device *pdev)
+{
+ struct tc3589x *tc3589x = dev_get_drvdata(pdev->dev.parent);
+ struct tc_keypad *keypad;
+ struct input_dev *input;
+ const struct tc3589x_keypad_platform_data *plat;
+ int error, irq;
+
+ plat = tc3589x->pdata->keypad;
+ if (!plat) {
+ dev_err(&pdev->dev, "invalid keypad platform data\n");
+ return -EINVAL;
+ }
+
+ irq = platform_get_irq(pdev, 0);
+ if (irq < 0)
+ return irq;
+
+ keypad = kzalloc(sizeof(struct tc_keypad), GFP_KERNEL);
+ input = input_allocate_device();
+ if (!keypad || !input) {
+ dev_err(&pdev->dev, "failed to allocate keypad memory\n");
+ error = -ENOMEM;
+ goto err_free_mem;
+ }
+
+ keypad->board = plat;
+ keypad->input = input;
+ keypad->tc3589x = tc3589x;
+
+ input->id.bustype = BUS_I2C;
+ input->name = pdev->name;
+ input->dev.parent = &pdev->dev;
+
+ input->keycode = keypad->keymap;
+ input->keycodesize = sizeof(keypad->keymap[0]);
+ input->keycodemax = ARRAY_SIZE(keypad->keymap);
+
+ input->open = tc3589x_keypad_open;
+ input->close = tc3589x_keypad_close;
+
+ input_set_drvdata(input, keypad);
+
+ input_set_capability(input, EV_MSC, MSC_SCAN);
+
+ __set_bit(EV_KEY, input->evbit);
+ if (!plat->no_autorepeat)
+ __set_bit(EV_REP, input->evbit);
+
+ matrix_keypad_build_keymap(plat->keymap_data, 0x3,
+ input->keycode, input->keybit);
+
+ error = request_threaded_irq(irq, NULL,
+ tc3589x_keypad_irq, plat->irqtype,
+ "tc3589x-keypad", keypad);
+ if (error < 0) {
+ dev_err(&pdev->dev,
+ "Could not allocate irq %d,error %d\n",
+ irq, error);
+ goto err_free_mem;
+ }
+
+ error = input_register_device(input);
+ if (error) {
+ dev_err(&pdev->dev, "Could not register input device\n");
+ goto err_free_irq;
+ }
+
+ /* let platform decide if keypad is a wakeup source or not */
+ device_init_wakeup(&pdev->dev, plat->enable_wakeup);
+ device_set_wakeup_capable(&pdev->dev, plat->enable_wakeup);
+
+ platform_set_drvdata(pdev, keypad);
+
+ return 0;
+
+err_free_irq:
+ free_irq(irq, keypad);
+err_free_mem:
+ input_free_device(input);
+ kfree(keypad);
+ return error;
+}
+
+static int __devexit tc3589x_keypad_remove(struct platform_device *pdev)
+{
+ struct tc_keypad *keypad = platform_get_drvdata(pdev);
+ int irq = platform_get_irq(pdev, 0);
+
+ if (!keypad->keypad_stopped)
+ tc3589x_keypad_disable(keypad);
+
+ free_irq(irq, keypad);
+
+ input_unregister_device(keypad->input);
+
+ kfree(keypad);
+
+ return 0;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int tc3589x_keypad_suspend(struct device *dev)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ struct tc_keypad *keypad = platform_get_drvdata(pdev);
+ int irq = platform_get_irq(pdev, 0);
+
+ /* keypad is already off; we do nothing */
+ if (keypad->keypad_stopped)
+ return 0;
+
+ /* if device is not a wakeup source, disable it for powersave */
+ if (!device_may_wakeup(&pdev->dev))
+ tc3589x_keypad_disable(keypad);
+ else
+ enable_irq_wake(irq);
+
+ return 0;
+}
+
+static int tc3589x_keypad_resume(struct device *dev)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ struct tc_keypad *keypad = platform_get_drvdata(pdev);
+ int irq = platform_get_irq(pdev, 0);
+
+ if (!keypad->keypad_stopped)
+ return 0;
+
+ /* enable the device to resume normal operations */
+ if (!device_may_wakeup(&pdev->dev))
+ tc3589x_keypad_enable(keypad);
+ else
+ disable_irq_wake(irq);
+
+ return 0;
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(tc3589x_keypad_dev_pm_ops,
+ tc3589x_keypad_suspend, tc3589x_keypad_resume);
+
+static struct platform_driver tc3589x_keypad_driver = {
+ .driver = {
+ .name = "tc3589x-keypad",
+ .owner = THIS_MODULE,
+ .pm = &tc3589x_keypad_dev_pm_ops,
+ },
+ .probe = tc3589x_keypad_probe,
+ .remove = __devexit_p(tc3589x_keypad_remove),
+};
+
+static int __init tc3589x_keypad_init(void)
+{
+ return platform_driver_register(&tc3589x_keypad_driver);
+}
+module_init(tc3589x_keypad_init);
+
+static void __exit tc3589x_keypad_exit(void)
+{
+ return platform_driver_unregister(&tc3589x_keypad_driver);
+}
+module_exit(tc3589x_keypad_exit);
+
+MODULE_LICENSE("GPL v2");
+MODULE_AUTHOR("Jayeeta Banerjee/Sundar Iyer");
+MODULE_DESCRIPTION("TC35893 Keypad Driver");
+MODULE_ALIAS("platform:tc3589x-keypad");
diff --git a/drivers/input/keyboard/tca6416-keypad.c b/drivers/input/keyboard/tca6416-keypad.c
new file mode 100644
index 0000000..3afea3f
--- /dev/null
+++ b/drivers/input/keyboard/tca6416-keypad.c
@@ -0,0 +1,382 @@
+/*
+ * Driver for keys on TCA6416 I2C IO expander
+ *
+ * Copyright (C) 2010 Texas Instruments
+ *
+ * Author : Sriramakrishnan.A.G. <srk@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/types.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/slab.h>
+#include <linux/interrupt.h>
+#include <linux/workqueue.h>
+#include <linux/gpio.h>
+#include <linux/i2c.h>
+#include <linux/input.h>
+#include <linux/tca6416_keypad.h>
+
+#define TCA6416_INPUT 0
+#define TCA6416_OUTPUT 1
+#define TCA6416_INVERT 2
+#define TCA6416_DIRECTION 3
+
+static const struct i2c_device_id tca6416_id[] = {
+ { "tca6416-keys", 16, },
+ { "tca6408-keys", 8, },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, tca6416_id);
+
+struct tca6416_drv_data {
+ struct input_dev *input;
+ struct tca6416_button data[0];
+};
+
+struct tca6416_keypad_chip {
+ uint16_t reg_output;
+ uint16_t reg_direction;
+ uint16_t reg_input;
+
+ struct i2c_client *client;
+ struct input_dev *input;
+ struct delayed_work dwork;
+ int io_size;
+ int irqnum;
+ u16 pinmask;
+ bool use_polling;
+ struct tca6416_button buttons[0];
+};
+
+static int tca6416_write_reg(struct tca6416_keypad_chip *chip, int reg, u16 val)
+{
+ int error;
+
+ error = chip->io_size > 8 ?
+ i2c_smbus_write_word_data(chip->client, reg << 1, val) :
+ i2c_smbus_write_byte_data(chip->client, reg, val);
+ if (error < 0) {
+ dev_err(&chip->client->dev,
+ "%s failed, reg: %d, val: %d, error: %d\n",
+ __func__, reg, val, error);
+ return error;
+ }
+
+ return 0;
+}
+
+static int tca6416_read_reg(struct tca6416_keypad_chip *chip, int reg, u16 *val)
+{
+ int retval;
+
+ retval = chip->io_size > 8 ?
+ i2c_smbus_read_word_data(chip->client, reg << 1) :
+ i2c_smbus_read_byte_data(chip->client, reg);
+ if (retval < 0) {
+ dev_err(&chip->client->dev, "%s failed, reg: %d, error: %d\n",
+ __func__, reg, retval);
+ return retval;
+ }
+
+ *val = (u16)retval;
+ return 0;
+}
+
+static void tca6416_keys_scan(struct tca6416_keypad_chip *chip)
+{
+ struct input_dev *input = chip->input;
+ u16 reg_val, val;
+ int error, i, pin_index;
+
+ error = tca6416_read_reg(chip, TCA6416_INPUT, ®_val);
+ if (error)
+ return;
+
+ reg_val &= chip->pinmask;
+
+ /* Figure out which lines have changed */
+ val = reg_val ^ chip->reg_input;
+ chip->reg_input = reg_val;
+
+ for (i = 0, pin_index = 0; i < 16; i++) {
+ if (val & (1 << i)) {
+ struct tca6416_button *button = &chip->buttons[pin_index];
+ unsigned int type = button->type ?: EV_KEY;
+ int state = ((reg_val & (1 << i)) ? 1 : 0)
+ ^ button->active_low;
+
+ input_event(input, type, button->code, !!state);
+ input_sync(input);
+ }
+
+ if (chip->pinmask & (1 << i))
+ pin_index++;
+ }
+}
+
+/*
+ * This is threaded IRQ handler and this can (and will) sleep.
+ */
+static irqreturn_t tca6416_keys_isr(int irq, void *dev_id)
+{
+ struct tca6416_keypad_chip *chip = dev_id;
+
+ tca6416_keys_scan(chip);
+
+ return IRQ_HANDLED;
+}
+
+static void tca6416_keys_work_func(struct work_struct *work)
+{
+ struct tca6416_keypad_chip *chip =
+ container_of(work, struct tca6416_keypad_chip, dwork.work);
+
+ tca6416_keys_scan(chip);
+ schedule_delayed_work(&chip->dwork, msecs_to_jiffies(100));
+}
+
+static int tca6416_keys_open(struct input_dev *dev)
+{
+ struct tca6416_keypad_chip *chip = input_get_drvdata(dev);
+
+ /* Get initial device state in case it has switches */
+ tca6416_keys_scan(chip);
+
+ if (chip->use_polling)
+ schedule_delayed_work(&chip->dwork, msecs_to_jiffies(100));
+ else
+ enable_irq(chip->irqnum);
+
+ return 0;
+}
+
+static void tca6416_keys_close(struct input_dev *dev)
+{
+ struct tca6416_keypad_chip *chip = input_get_drvdata(dev);
+
+ if (chip->use_polling)
+ cancel_delayed_work_sync(&chip->dwork);
+ else
+ disable_irq(chip->irqnum);
+}
+
+static int __devinit tca6416_setup_registers(struct tca6416_keypad_chip *chip)
+{
+ int error;
+
+ error = tca6416_read_reg(chip, TCA6416_OUTPUT, &chip->reg_output);
+ if (error)
+ return error;
+
+ error = tca6416_read_reg(chip, TCA6416_DIRECTION, &chip->reg_direction);
+ if (error)
+ return error;
+
+ /* ensure that keypad pins are set to input */
+ error = tca6416_write_reg(chip, TCA6416_DIRECTION,
+ chip->reg_direction | chip->pinmask);
+ if (error)
+ return error;
+
+ error = tca6416_read_reg(chip, TCA6416_DIRECTION, &chip->reg_direction);
+ if (error)
+ return error;
+
+ error = tca6416_read_reg(chip, TCA6416_INPUT, &chip->reg_input);
+ if (error)
+ return error;
+
+ chip->reg_input &= chip->pinmask;
+
+ return 0;
+}
+
+static int __devinit tca6416_keypad_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct tca6416_keys_platform_data *pdata;
+ struct tca6416_keypad_chip *chip;
+ struct input_dev *input;
+ int error;
+ int i;
+
+ /* Check functionality */
+ if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE)) {
+ dev_err(&client->dev, "%s adapter not supported\n",
+ dev_driver_string(&client->adapter->dev));
+ return -ENODEV;
+ }
+
+ pdata = client->dev.platform_data;
+ if (!pdata) {
+ dev_dbg(&client->dev, "no platform data\n");
+ return -EINVAL;
+ }
+
+ chip = kzalloc(sizeof(struct tca6416_keypad_chip) +
+ pdata->nbuttons * sizeof(struct tca6416_button),
+ GFP_KERNEL);
+ input = input_allocate_device();
+ if (!chip || !input) {
+ error = -ENOMEM;
+ goto fail1;
+ }
+
+ chip->client = client;
+ chip->input = input;
+ chip->io_size = id->driver_data;
+ chip->pinmask = pdata->pinmask;
+ chip->use_polling = pdata->use_polling;
+
+ INIT_DELAYED_WORK(&chip->dwork, tca6416_keys_work_func);
+
+ input->phys = "tca6416-keys/input0";
+ input->name = client->name;
+ input->dev.parent = &client->dev;
+
+ input->open = tca6416_keys_open;
+ input->close = tca6416_keys_close;
+
+ input->id.bustype = BUS_HOST;
+ input->id.vendor = 0x0001;
+ input->id.product = 0x0001;
+ input->id.version = 0x0100;
+
+ /* Enable auto repeat feature of Linux input subsystem */
+ if (pdata->rep)
+ __set_bit(EV_REP, input->evbit);
+
+ for (i = 0; i < pdata->nbuttons; i++) {
+ unsigned int type;
+
+ chip->buttons[i] = pdata->buttons[i];
+ type = (pdata->buttons[i].type) ?: EV_KEY;
+ input_set_capability(input, type, pdata->buttons[i].code);
+ }
+
+ input_set_drvdata(input, chip);
+
+ /*
+ * Initialize cached registers from their original values.
+ * we can't share this chip with another i2c master.
+ */
+ error = tca6416_setup_registers(chip);
+ if (error)
+ goto fail1;
+
+ if (!chip->use_polling) {
+ if (pdata->irq_is_gpio)
+ chip->irqnum = gpio_to_irq(client->irq);
+ else
+ chip->irqnum = client->irq;
+
+ error = request_threaded_irq(chip->irqnum, NULL,
+ tca6416_keys_isr,
+ IRQF_TRIGGER_FALLING,
+ "tca6416-keypad", chip);
+ if (error) {
+ dev_dbg(&client->dev,
+ "Unable to claim irq %d; error %d\n",
+ chip->irqnum, error);
+ goto fail1;
+ }
+ disable_irq(chip->irqnum);
+ }
+
+ error = input_register_device(input);
+ if (error) {
+ dev_dbg(&client->dev,
+ "Unable to register input device, error: %d\n", error);
+ goto fail2;
+ }
+
+ i2c_set_clientdata(client, chip);
+ device_init_wakeup(&client->dev, 1);
+
+ return 0;
+
+fail2:
+ if (!chip->use_polling) {
+ free_irq(chip->irqnum, chip);
+ enable_irq(chip->irqnum);
+ }
+fail1:
+ input_free_device(input);
+ kfree(chip);
+ return error;
+}
+
+static int __devexit tca6416_keypad_remove(struct i2c_client *client)
+{
+ struct tca6416_keypad_chip *chip = i2c_get_clientdata(client);
+
+ if (!chip->use_polling) {
+ free_irq(chip->irqnum, chip);
+ enable_irq(chip->irqnum);
+ }
+
+ input_unregister_device(chip->input);
+ kfree(chip);
+
+ return 0;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int tca6416_keypad_suspend(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct tca6416_keypad_chip *chip = i2c_get_clientdata(client);
+
+ if (device_may_wakeup(dev))
+ enable_irq_wake(chip->irqnum);
+
+ return 0;
+}
+
+static int tca6416_keypad_resume(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct tca6416_keypad_chip *chip = i2c_get_clientdata(client);
+
+ if (device_may_wakeup(dev))
+ disable_irq_wake(chip->irqnum);
+
+ return 0;
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(tca6416_keypad_dev_pm_ops,
+ tca6416_keypad_suspend, tca6416_keypad_resume);
+
+static struct i2c_driver tca6416_keypad_driver = {
+ .driver = {
+ .name = "tca6416-keypad",
+ .pm = &tca6416_keypad_dev_pm_ops,
+ },
+ .probe = tca6416_keypad_probe,
+ .remove = __devexit_p(tca6416_keypad_remove),
+ .id_table = tca6416_id,
+};
+
+static int __init tca6416_keypad_init(void)
+{
+ return i2c_add_driver(&tca6416_keypad_driver);
+}
+
+subsys_initcall(tca6416_keypad_init);
+
+static void __exit tca6416_keypad_exit(void)
+{
+ i2c_del_driver(&tca6416_keypad_driver);
+}
+module_exit(tca6416_keypad_exit);
+
+MODULE_AUTHOR("Sriramakrishnan <srk@ti.com>");
+MODULE_DESCRIPTION("Keypad driver over tca6146 IO expander");
+MODULE_LICENSE("GPL");
diff --git a/drivers/input/keyboard/tegra-kbc.c b/drivers/input/keyboard/tegra-kbc.c
new file mode 100644
index 0000000..cf3228b
--- /dev/null
+++ b/drivers/input/keyboard/tegra-kbc.c
@@ -0,0 +1,821 @@
+/*
+ * Keyboard class input driver for the NVIDIA Tegra SoC internal matrix
+ * keyboard controller
+ *
+ * Copyright (c) 2009-2011, NVIDIA Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/input.h>
+#include <linux/platform_device.h>
+#include <linux/delay.h>
+#include <linux/io.h>
+#include <linux/interrupt.h>
+#include <linux/clk.h>
+#include <linux/slab.h>
+#include <mach/clk.h>
+#include <mach/kbc.h>
+
+#define KBC_MAX_DEBOUNCE_CNT 0x3ffu
+
+/* KBC row scan time and delay for beginning the row scan. */
+#define KBC_ROW_SCAN_TIME 16
+#define KBC_ROW_SCAN_DLY 5
+
+/* KBC uses a 32KHz clock so a cycle = 1/32Khz */
+#define KBC_CYCLE_MS 32
+
+/* KBC Registers */
+
+/* KBC Control Register */
+#define KBC_CONTROL_0 0x0
+#define KBC_FIFO_TH_CNT_SHIFT(cnt) (cnt << 14)
+#define KBC_DEBOUNCE_CNT_SHIFT(cnt) (cnt << 4)
+#define KBC_CONTROL_FIFO_CNT_INT_EN (1 << 3)
+#define KBC_CONTROL_KBC_EN (1 << 0)
+
+/* KBC Interrupt Register */
+#define KBC_INT_0 0x4
+#define KBC_INT_FIFO_CNT_INT_STATUS (1 << 2)
+
+#define KBC_ROW_CFG0_0 0x8
+#define KBC_COL_CFG0_0 0x18
+#define KBC_TO_CNT_0 0x24
+#define KBC_INIT_DLY_0 0x28
+#define KBC_RPT_DLY_0 0x2c
+#define KBC_KP_ENT0_0 0x30
+#define KBC_KP_ENT1_0 0x34
+#define KBC_ROW0_MASK_0 0x38
+
+#define KBC_ROW_SHIFT 3
+
+struct tegra_kbc {
+ void __iomem *mmio;
+ struct input_dev *idev;
+ unsigned int irq;
+ spinlock_t lock;
+ unsigned int repoll_dly;
+ unsigned long cp_dly_jiffies;
+ unsigned int cp_to_wkup_dly;
+ bool use_fn_map;
+ bool use_ghost_filter;
+ const struct tegra_kbc_platform_data *pdata;
+ unsigned short keycode[KBC_MAX_KEY * 2];
+ unsigned short current_keys[KBC_MAX_KPENT];
+ unsigned int num_pressed_keys;
+ struct timer_list timer;
+ struct clk *clk;
+};
+
+static const u32 tegra_kbc_default_keymap[] = {
+ KEY(0, 2, KEY_W),
+ KEY(0, 3, KEY_S),
+ KEY(0, 4, KEY_A),
+ KEY(0, 5, KEY_Z),
+ KEY(0, 7, KEY_FN),
+
+ KEY(1, 7, KEY_LEFTMETA),
+
+ KEY(2, 6, KEY_RIGHTALT),
+ KEY(2, 7, KEY_LEFTALT),
+
+ KEY(3, 0, KEY_5),
+ KEY(3, 1, KEY_4),
+ KEY(3, 2, KEY_R),
+ KEY(3, 3, KEY_E),
+ KEY(3, 4, KEY_F),
+ KEY(3, 5, KEY_D),
+ KEY(3, 6, KEY_X),
+
+ KEY(4, 0, KEY_7),
+ KEY(4, 1, KEY_6),
+ KEY(4, 2, KEY_T),
+ KEY(4, 3, KEY_H),
+ KEY(4, 4, KEY_G),
+ KEY(4, 5, KEY_V),
+ KEY(4, 6, KEY_C),
+ KEY(4, 7, KEY_SPACE),
+
+ KEY(5, 0, KEY_9),
+ KEY(5, 1, KEY_8),
+ KEY(5, 2, KEY_U),
+ KEY(5, 3, KEY_Y),
+ KEY(5, 4, KEY_J),
+ KEY(5, 5, KEY_N),
+ KEY(5, 6, KEY_B),
+ KEY(5, 7, KEY_BACKSLASH),
+
+ KEY(6, 0, KEY_MINUS),
+ KEY(6, 1, KEY_0),
+ KEY(6, 2, KEY_O),
+ KEY(6, 3, KEY_I),
+ KEY(6, 4, KEY_L),
+ KEY(6, 5, KEY_K),
+ KEY(6, 6, KEY_COMMA),
+ KEY(6, 7, KEY_M),
+
+ KEY(7, 1, KEY_EQUAL),
+ KEY(7, 2, KEY_RIGHTBRACE),
+ KEY(7, 3, KEY_ENTER),
+ KEY(7, 7, KEY_MENU),
+
+ KEY(8, 4, KEY_RIGHTSHIFT),
+ KEY(8, 5, KEY_LEFTSHIFT),
+
+ KEY(9, 5, KEY_RIGHTCTRL),
+ KEY(9, 7, KEY_LEFTCTRL),
+
+ KEY(11, 0, KEY_LEFTBRACE),
+ KEY(11, 1, KEY_P),
+ KEY(11, 2, KEY_APOSTROPHE),
+ KEY(11, 3, KEY_SEMICOLON),
+ KEY(11, 4, KEY_SLASH),
+ KEY(11, 5, KEY_DOT),
+
+ KEY(12, 0, KEY_F10),
+ KEY(12, 1, KEY_F9),
+ KEY(12, 2, KEY_BACKSPACE),
+ KEY(12, 3, KEY_3),
+ KEY(12, 4, KEY_2),
+ KEY(12, 5, KEY_UP),
+ KEY(12, 6, KEY_PRINT),
+ KEY(12, 7, KEY_PAUSE),
+
+ KEY(13, 0, KEY_INSERT),
+ KEY(13, 1, KEY_DELETE),
+ KEY(13, 3, KEY_PAGEUP),
+ KEY(13, 4, KEY_PAGEDOWN),
+ KEY(13, 5, KEY_RIGHT),
+ KEY(13, 6, KEY_DOWN),
+ KEY(13, 7, KEY_LEFT),
+
+ KEY(14, 0, KEY_F11),
+ KEY(14, 1, KEY_F12),
+ KEY(14, 2, KEY_F8),
+ KEY(14, 3, KEY_Q),
+ KEY(14, 4, KEY_F4),
+ KEY(14, 5, KEY_F3),
+ KEY(14, 6, KEY_1),
+ KEY(14, 7, KEY_F7),
+
+ KEY(15, 0, KEY_ESC),
+ KEY(15, 1, KEY_GRAVE),
+ KEY(15, 2, KEY_F5),
+ KEY(15, 3, KEY_TAB),
+ KEY(15, 4, KEY_F1),
+ KEY(15, 5, KEY_F2),
+ KEY(15, 6, KEY_CAPSLOCK),
+ KEY(15, 7, KEY_F6),
+
+ /* Software Handled Function Keys */
+ KEY(20, 0, KEY_KP7),
+
+ KEY(21, 0, KEY_KP9),
+ KEY(21, 1, KEY_KP8),
+ KEY(21, 2, KEY_KP4),
+ KEY(21, 4, KEY_KP1),
+
+ KEY(22, 1, KEY_KPSLASH),
+ KEY(22, 2, KEY_KP6),
+ KEY(22, 3, KEY_KP5),
+ KEY(22, 4, KEY_KP3),
+ KEY(22, 5, KEY_KP2),
+ KEY(22, 7, KEY_KP0),
+
+ KEY(27, 1, KEY_KPASTERISK),
+ KEY(27, 3, KEY_KPMINUS),
+ KEY(27, 4, KEY_KPPLUS),
+ KEY(27, 5, KEY_KPDOT),
+
+ KEY(28, 5, KEY_VOLUMEUP),
+
+ KEY(29, 3, KEY_HOME),
+ KEY(29, 4, KEY_END),
+ KEY(29, 5, KEY_BRIGHTNESSDOWN),
+ KEY(29, 6, KEY_VOLUMEDOWN),
+ KEY(29, 7, KEY_BRIGHTNESSUP),
+
+ KEY(30, 0, KEY_NUMLOCK),
+ KEY(30, 1, KEY_SCROLLLOCK),
+ KEY(30, 2, KEY_MUTE),
+
+ KEY(31, 4, KEY_HELP),
+};
+
+static const struct matrix_keymap_data tegra_kbc_default_keymap_data = {
+ .keymap = tegra_kbc_default_keymap,
+ .keymap_size = ARRAY_SIZE(tegra_kbc_default_keymap),
+};
+
+static void tegra_kbc_report_released_keys(struct input_dev *input,
+ unsigned short old_keycodes[],
+ unsigned int old_num_keys,
+ unsigned short new_keycodes[],
+ unsigned int new_num_keys)
+{
+ unsigned int i, j;
+
+ for (i = 0; i < old_num_keys; i++) {
+ for (j = 0; j < new_num_keys; j++)
+ if (old_keycodes[i] == new_keycodes[j])
+ break;
+
+ if (j == new_num_keys)
+ input_report_key(input, old_keycodes[i], 0);
+ }
+}
+
+static void tegra_kbc_report_pressed_keys(struct input_dev *input,
+ unsigned char scancodes[],
+ unsigned short keycodes[],
+ unsigned int num_pressed_keys)
+{
+ unsigned int i;
+
+ for (i = 0; i < num_pressed_keys; i++) {
+ input_event(input, EV_MSC, MSC_SCAN, scancodes[i]);
+ input_report_key(input, keycodes[i], 1);
+ }
+}
+
+static void tegra_kbc_report_keys(struct tegra_kbc *kbc)
+{
+ unsigned char scancodes[KBC_MAX_KPENT];
+ unsigned short keycodes[KBC_MAX_KPENT];
+ u32 val = 0;
+ unsigned int i;
+ unsigned int num_down = 0;
+ bool fn_keypress = false;
+ bool key_in_same_row = false;
+ bool key_in_same_col = false;
+
+ for (i = 0; i < KBC_MAX_KPENT; i++) {
+ if ((i % 4) == 0)
+ val = readl(kbc->mmio + KBC_KP_ENT0_0 + i);
+
+ if (val & 0x80) {
+ unsigned int col = val & 0x07;
+ unsigned int row = (val >> 3) & 0x0f;
+ unsigned char scancode =
+ MATRIX_SCAN_CODE(row, col, KBC_ROW_SHIFT);
+
+ scancodes[num_down] = scancode;
+ keycodes[num_down] = kbc->keycode[scancode];
+ /* If driver uses Fn map, do not report the Fn key. */
+ if ((keycodes[num_down] == KEY_FN) && kbc->use_fn_map)
+ fn_keypress = true;
+ else
+ num_down++;
+ }
+
+ val >>= 8;
+ }
+
+ /*
+ * Matrix keyboard designs are prone to keyboard ghosting.
+ * Ghosting occurs if there are 3 keys such that -
+ * any 2 of the 3 keys share a row, and any 2 of them share a column.
+ * If so ignore the key presses for this iteration.
+ */
+ if (kbc->use_ghost_filter && num_down >= 3) {
+ for (i = 0; i < num_down; i++) {
+ unsigned int j;
+ u8 curr_col = scancodes[i] & 0x07;
+ u8 curr_row = scancodes[i] >> KBC_ROW_SHIFT;
+
+ /*
+ * Find 2 keys such that one key is in the same row
+ * and the other is in the same column as the i-th key.
+ */
+ for (j = i + 1; j < num_down; j++) {
+ u8 col = scancodes[j] & 0x07;
+ u8 row = scancodes[j] >> KBC_ROW_SHIFT;
+
+ if (col == curr_col)
+ key_in_same_col = true;
+ if (row == curr_row)
+ key_in_same_row = true;
+ }
+ }
+ }
+
+ /*
+ * If the platform uses Fn keymaps, translate keys on a Fn keypress.
+ * Function keycodes are KBC_MAX_KEY apart from the plain keycodes.
+ */
+ if (fn_keypress) {
+ for (i = 0; i < num_down; i++) {
+ scancodes[i] += KBC_MAX_KEY;
+ keycodes[i] = kbc->keycode[scancodes[i]];
+ }
+ }
+
+ /* Ignore the key presses for this iteration? */
+ if (key_in_same_col && key_in_same_row)
+ return;
+
+ tegra_kbc_report_released_keys(kbc->idev,
+ kbc->current_keys, kbc->num_pressed_keys,
+ keycodes, num_down);
+ tegra_kbc_report_pressed_keys(kbc->idev, scancodes, keycodes, num_down);
+ input_sync(kbc->idev);
+
+ memcpy(kbc->current_keys, keycodes, sizeof(kbc->current_keys));
+ kbc->num_pressed_keys = num_down;
+}
+
+static void tegra_kbc_set_fifo_interrupt(struct tegra_kbc *kbc, bool enable)
+{
+ u32 val;
+
+ val = readl(kbc->mmio + KBC_CONTROL_0);
+ if (enable)
+ val |= KBC_CONTROL_FIFO_CNT_INT_EN;
+ else
+ val &= ~KBC_CONTROL_FIFO_CNT_INT_EN;
+ writel(val, kbc->mmio + KBC_CONTROL_0);
+}
+
+static void tegra_kbc_keypress_timer(unsigned long data)
+{
+ struct tegra_kbc *kbc = (struct tegra_kbc *)data;
+ unsigned long flags;
+ u32 val;
+ unsigned int i;
+
+ spin_lock_irqsave(&kbc->lock, flags);
+
+ val = (readl(kbc->mmio + KBC_INT_0) >> 4) & 0xf;
+ if (val) {
+ unsigned long dly;
+
+ tegra_kbc_report_keys(kbc);
+
+ /*
+ * If more than one keys are pressed we need not wait
+ * for the repoll delay.
+ */
+ dly = (val == 1) ? kbc->repoll_dly : 1;
+ mod_timer(&kbc->timer, jiffies + msecs_to_jiffies(dly));
+ } else {
+ /* Release any pressed keys and exit the polling loop */
+ for (i = 0; i < kbc->num_pressed_keys; i++)
+ input_report_key(kbc->idev, kbc->current_keys[i], 0);
+ input_sync(kbc->idev);
+
+ kbc->num_pressed_keys = 0;
+
+ /* All keys are released so enable the keypress interrupt */
+ tegra_kbc_set_fifo_interrupt(kbc, true);
+ }
+
+ spin_unlock_irqrestore(&kbc->lock, flags);
+}
+
+static irqreturn_t tegra_kbc_isr(int irq, void *args)
+{
+ struct tegra_kbc *kbc = args;
+ unsigned long flags;
+ u32 val;
+
+ spin_lock_irqsave(&kbc->lock, flags);
+
+ /*
+ * Quickly bail out & reenable interrupts if the fifo threshold
+ * count interrupt wasn't the interrupt source
+ */
+ val = readl(kbc->mmio + KBC_INT_0);
+ writel(val, kbc->mmio + KBC_INT_0);
+
+ if (val & KBC_INT_FIFO_CNT_INT_STATUS) {
+ /*
+ * Until all keys are released, defer further processing to
+ * the polling loop in tegra_kbc_keypress_timer.
+ */
+ tegra_kbc_set_fifo_interrupt(kbc, false);
+ mod_timer(&kbc->timer, jiffies + kbc->cp_dly_jiffies);
+ }
+
+ spin_unlock_irqrestore(&kbc->lock, flags);
+
+ return IRQ_HANDLED;
+}
+
+static void tegra_kbc_setup_wakekeys(struct tegra_kbc *kbc, bool filter)
+{
+ const struct tegra_kbc_platform_data *pdata = kbc->pdata;
+ int i;
+ unsigned int rst_val;
+
+ /* Either mask all keys or none. */
+ rst_val = (filter && !pdata->wakeup) ? ~0 : 0;
+
+ for (i = 0; i < KBC_MAX_ROW; i++)
+ writel(rst_val, kbc->mmio + KBC_ROW0_MASK_0 + i * 4);
+}
+
+static void tegra_kbc_config_pins(struct tegra_kbc *kbc)
+{
+ const struct tegra_kbc_platform_data *pdata = kbc->pdata;
+ int i;
+
+ for (i = 0; i < KBC_MAX_GPIO; i++) {
+ u32 r_shft = 5 * (i % 6);
+ u32 c_shft = 4 * (i % 8);
+ u32 r_mask = 0x1f << r_shft;
+ u32 c_mask = 0x0f << c_shft;
+ u32 r_offs = (i / 6) * 4 + KBC_ROW_CFG0_0;
+ u32 c_offs = (i / 8) * 4 + KBC_COL_CFG0_0;
+ u32 row_cfg = readl(kbc->mmio + r_offs);
+ u32 col_cfg = readl(kbc->mmio + c_offs);
+
+ row_cfg &= ~r_mask;
+ col_cfg &= ~c_mask;
+
+ if (pdata->pin_cfg[i].is_row)
+ row_cfg |= ((pdata->pin_cfg[i].num << 1) | 1) << r_shft;
+ else
+ col_cfg |= ((pdata->pin_cfg[i].num << 1) | 1) << c_shft;
+
+ writel(row_cfg, kbc->mmio + r_offs);
+ writel(col_cfg, kbc->mmio + c_offs);
+ }
+}
+
+static int tegra_kbc_start(struct tegra_kbc *kbc)
+{
+ const struct tegra_kbc_platform_data *pdata = kbc->pdata;
+ unsigned int debounce_cnt;
+ u32 val = 0;
+
+ clk_enable(kbc->clk);
+
+ /* Reset the KBC controller to clear all previous status.*/
+ tegra_periph_reset_assert(kbc->clk);
+ udelay(100);
+ tegra_periph_reset_deassert(kbc->clk);
+ udelay(100);
+
+ tegra_kbc_config_pins(kbc);
+ tegra_kbc_setup_wakekeys(kbc, false);
+
+ writel(pdata->repeat_cnt, kbc->mmio + KBC_RPT_DLY_0);
+
+ /* Keyboard debounce count is maximum of 12 bits. */
+ debounce_cnt = min(pdata->debounce_cnt, KBC_MAX_DEBOUNCE_CNT);
+ val = KBC_DEBOUNCE_CNT_SHIFT(debounce_cnt);
+ val |= KBC_FIFO_TH_CNT_SHIFT(1); /* set fifo interrupt threshold to 1 */
+ val |= KBC_CONTROL_FIFO_CNT_INT_EN; /* interrupt on FIFO threshold */
+ val |= KBC_CONTROL_KBC_EN; /* enable */
+ writel(val, kbc->mmio + KBC_CONTROL_0);
+
+ /*
+ * Compute the delay(ns) from interrupt mode to continuous polling
+ * mode so the timer routine is scheduled appropriately.
+ */
+ val = readl(kbc->mmio + KBC_INIT_DLY_0);
+ kbc->cp_dly_jiffies = usecs_to_jiffies((val & 0xfffff) * 32);
+
+ kbc->num_pressed_keys = 0;
+
+ /*
+ * Atomically clear out any remaining entries in the key FIFO
+ * and enable keyboard interrupts.
+ */
+ while (1) {
+ val = readl(kbc->mmio + KBC_INT_0);
+ val >>= 4;
+ if (!val)
+ break;
+
+ val = readl(kbc->mmio + KBC_KP_ENT0_0);
+ val = readl(kbc->mmio + KBC_KP_ENT1_0);
+ }
+ writel(0x7, kbc->mmio + KBC_INT_0);
+
+ enable_irq(kbc->irq);
+
+ return 0;
+}
+
+static void tegra_kbc_stop(struct tegra_kbc *kbc)
+{
+ unsigned long flags;
+ u32 val;
+
+ spin_lock_irqsave(&kbc->lock, flags);
+ val = readl(kbc->mmio + KBC_CONTROL_0);
+ val &= ~1;
+ writel(val, kbc->mmio + KBC_CONTROL_0);
+ spin_unlock_irqrestore(&kbc->lock, flags);
+
+ disable_irq(kbc->irq);
+ del_timer_sync(&kbc->timer);
+
+ clk_disable(kbc->clk);
+}
+
+static int tegra_kbc_open(struct input_dev *dev)
+{
+ struct tegra_kbc *kbc = input_get_drvdata(dev);
+
+ return tegra_kbc_start(kbc);
+}
+
+static void tegra_kbc_close(struct input_dev *dev)
+{
+ struct tegra_kbc *kbc = input_get_drvdata(dev);
+
+ return tegra_kbc_stop(kbc);
+}
+
+static bool __devinit
+tegra_kbc_check_pin_cfg(const struct tegra_kbc_platform_data *pdata,
+ struct device *dev, unsigned int *num_rows)
+{
+ int i;
+
+ *num_rows = 0;
+
+ for (i = 0; i < KBC_MAX_GPIO; i++) {
+ const struct tegra_kbc_pin_cfg *pin_cfg = &pdata->pin_cfg[i];
+
+ if (pin_cfg->is_row) {
+ if (pin_cfg->num >= KBC_MAX_ROW) {
+ dev_err(dev,
+ "pin_cfg[%d]: invalid row number %d\n",
+ i, pin_cfg->num);
+ return false;
+ }
+ (*num_rows)++;
+ } else {
+ if (pin_cfg->num >= KBC_MAX_COL) {
+ dev_err(dev,
+ "pin_cfg[%d]: invalid column number %d\n",
+ i, pin_cfg->num);
+ return false;
+ }
+ }
+ }
+
+ return true;
+}
+
+static int __devinit tegra_kbc_probe(struct platform_device *pdev)
+{
+ const struct tegra_kbc_platform_data *pdata = pdev->dev.platform_data;
+ const struct matrix_keymap_data *keymap_data;
+ struct tegra_kbc *kbc;
+ struct input_dev *input_dev;
+ struct resource *res;
+ int irq;
+ int err;
+ int num_rows = 0;
+ unsigned int debounce_cnt;
+ unsigned int scan_time_rows;
+
+ if (!pdata)
+ return -EINVAL;
+
+ if (!tegra_kbc_check_pin_cfg(pdata, &pdev->dev, &num_rows))
+ return -EINVAL;
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!res) {
+ dev_err(&pdev->dev, "failed to get I/O memory\n");
+ return -ENXIO;
+ }
+
+ irq = platform_get_irq(pdev, 0);
+ if (irq < 0) {
+ dev_err(&pdev->dev, "failed to get keyboard IRQ\n");
+ return -ENXIO;
+ }
+
+ kbc = kzalloc(sizeof(*kbc), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!kbc || !input_dev) {
+ err = -ENOMEM;
+ goto err_free_mem;
+ }
+
+ kbc->pdata = pdata;
+ kbc->idev = input_dev;
+ kbc->irq = irq;
+ spin_lock_init(&kbc->lock);
+ setup_timer(&kbc->timer, tegra_kbc_keypress_timer, (unsigned long)kbc);
+
+ res = request_mem_region(res->start, resource_size(res), pdev->name);
+ if (!res) {
+ dev_err(&pdev->dev, "failed to request I/O memory\n");
+ err = -EBUSY;
+ goto err_free_mem;
+ }
+
+ kbc->mmio = ioremap(res->start, resource_size(res));
+ if (!kbc->mmio) {
+ dev_err(&pdev->dev, "failed to remap I/O memory\n");
+ err = -ENXIO;
+ goto err_free_mem_region;
+ }
+
+ kbc->clk = clk_get(&pdev->dev, NULL);
+ if (IS_ERR(kbc->clk)) {
+ dev_err(&pdev->dev, "failed to get keyboard clock\n");
+ err = PTR_ERR(kbc->clk);
+ goto err_iounmap;
+ }
+
+ /*
+ * The time delay between two consecutive reads of the FIFO is
+ * the sum of the repeat time and the time taken for scanning
+ * the rows. There is an additional delay before the row scanning
+ * starts. The repoll delay is computed in milliseconds.
+ */
+ debounce_cnt = min(pdata->debounce_cnt, KBC_MAX_DEBOUNCE_CNT);
+ scan_time_rows = (KBC_ROW_SCAN_TIME + debounce_cnt) * num_rows;
+ kbc->repoll_dly = KBC_ROW_SCAN_DLY + scan_time_rows + pdata->repeat_cnt;
+ kbc->repoll_dly = DIV_ROUND_UP(kbc->repoll_dly, KBC_CYCLE_MS);
+
+ input_dev->name = pdev->name;
+ input_dev->id.bustype = BUS_HOST;
+ input_dev->dev.parent = &pdev->dev;
+ input_dev->open = tegra_kbc_open;
+ input_dev->close = tegra_kbc_close;
+
+ input_set_drvdata(input_dev, kbc);
+
+ input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP);
+ input_set_capability(input_dev, EV_MSC, MSC_SCAN);
+
+ input_dev->keycode = kbc->keycode;
+ input_dev->keycodesize = sizeof(kbc->keycode[0]);
+ input_dev->keycodemax = KBC_MAX_KEY;
+ if (pdata->use_fn_map)
+ input_dev->keycodemax *= 2;
+
+ kbc->use_fn_map = pdata->use_fn_map;
+ kbc->use_ghost_filter = pdata->use_ghost_filter;
+ keymap_data = pdata->keymap_data ?: &tegra_kbc_default_keymap_data;
+ matrix_keypad_build_keymap(keymap_data, KBC_ROW_SHIFT,
+ input_dev->keycode, input_dev->keybit);
+
+ err = request_irq(kbc->irq, tegra_kbc_isr, IRQF_TRIGGER_HIGH,
+ pdev->name, kbc);
+ if (err) {
+ dev_err(&pdev->dev, "failed to request keyboard IRQ\n");
+ goto err_put_clk;
+ }
+
+ disable_irq(kbc->irq);
+
+ err = input_register_device(kbc->idev);
+ if (err) {
+ dev_err(&pdev->dev, "failed to register input device\n");
+ goto err_free_irq;
+ }
+
+ platform_set_drvdata(pdev, kbc);
+ device_init_wakeup(&pdev->dev, pdata->wakeup);
+
+ return 0;
+
+err_free_irq:
+ free_irq(kbc->irq, pdev);
+err_put_clk:
+ clk_put(kbc->clk);
+err_iounmap:
+ iounmap(kbc->mmio);
+err_free_mem_region:
+ release_mem_region(res->start, resource_size(res));
+err_free_mem:
+ input_free_device(input_dev);
+ kfree(kbc);
+
+ return err;
+}
+
+static int __devexit tegra_kbc_remove(struct platform_device *pdev)
+{
+ struct tegra_kbc *kbc = platform_get_drvdata(pdev);
+ struct resource *res;
+
+ free_irq(kbc->irq, pdev);
+ clk_put(kbc->clk);
+
+ input_unregister_device(kbc->idev);
+ iounmap(kbc->mmio);
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ release_mem_region(res->start, resource_size(res));
+
+ kfree(kbc);
+
+ platform_set_drvdata(pdev, NULL);
+
+ return 0;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int tegra_kbc_suspend(struct device *dev)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ struct tegra_kbc *kbc = platform_get_drvdata(pdev);
+
+ mutex_lock(&kbc->idev->mutex);
+ if (device_may_wakeup(&pdev->dev)) {
+ disable_irq(kbc->irq);
+ del_timer_sync(&kbc->timer);
+ tegra_kbc_set_fifo_interrupt(kbc, false);
+
+ /* Forcefully clear the interrupt status */
+ writel(0x7, kbc->mmio + KBC_INT_0);
+ /*
+ * Store the previous resident time of continuous polling mode.
+ * Force the keyboard into interrupt mode.
+ */
+ kbc->cp_to_wkup_dly = readl(kbc->mmio + KBC_TO_CNT_0);
+ writel(0, kbc->mmio + KBC_TO_CNT_0);
+
+ tegra_kbc_setup_wakekeys(kbc, true);
+ msleep(30);
+
+ enable_irq_wake(kbc->irq);
+ } else {
+ if (kbc->idev->users)
+ tegra_kbc_stop(kbc);
+ }
+ mutex_unlock(&kbc->idev->mutex);
+
+ return 0;
+}
+
+static int tegra_kbc_resume(struct device *dev)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ struct tegra_kbc *kbc = platform_get_drvdata(pdev);
+ int err = 0;
+
+ mutex_lock(&kbc->idev->mutex);
+ if (device_may_wakeup(&pdev->dev)) {
+ disable_irq_wake(kbc->irq);
+ tegra_kbc_setup_wakekeys(kbc, false);
+
+ /* Restore the resident time of continuous polling mode. */
+ writel(kbc->cp_to_wkup_dly, kbc->mmio + KBC_TO_CNT_0);
+
+ tegra_kbc_set_fifo_interrupt(kbc, true);
+
+ enable_irq(kbc->irq);
+ } else {
+ if (kbc->idev->users)
+ err = tegra_kbc_start(kbc);
+ }
+ mutex_unlock(&kbc->idev->mutex);
+
+ return err;
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(tegra_kbc_pm_ops, tegra_kbc_suspend, tegra_kbc_resume);
+
+static struct platform_driver tegra_kbc_driver = {
+ .probe = tegra_kbc_probe,
+ .remove = __devexit_p(tegra_kbc_remove),
+ .driver = {
+ .name = "tegra-kbc",
+ .owner = THIS_MODULE,
+ .pm = &tegra_kbc_pm_ops,
+ },
+};
+
+static void __exit tegra_kbc_exit(void)
+{
+ platform_driver_unregister(&tegra_kbc_driver);
+}
+module_exit(tegra_kbc_exit);
+
+static int __init tegra_kbc_init(void)
+{
+ return platform_driver_register(&tegra_kbc_driver);
+}
+module_init(tegra_kbc_init);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Rakesh Iyer <riyer@nvidia.com>");
+MODULE_DESCRIPTION("Tegra matrix keyboard controller driver");
+MODULE_ALIAS("platform:tegra-kbc");
diff --git a/drivers/input/keyboard/tnetv107x-keypad.c b/drivers/input/keyboard/tnetv107x-keypad.c
new file mode 100644
index 0000000..66e55e5
--- /dev/null
+++ b/drivers/input/keyboard/tnetv107x-keypad.c
@@ -0,0 +1,342 @@
+/*
+ * Texas Instruments TNETV107X Keypad Driver
+ *
+ * Copyright (C) 2010 Texas Instruments
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation version 2.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any
+ * kind, whether express or implied; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/kernel.h>
+#include <linux/err.h>
+#include <linux/errno.h>
+#include <linux/input.h>
+#include <linux/platform_device.h>
+#include <linux/interrupt.h>
+#include <linux/slab.h>
+#include <linux/delay.h>
+#include <linux/io.h>
+#include <linux/clk.h>
+#include <linux/input/matrix_keypad.h>
+#include <linux/module.h>
+
+#define BITS(x) (BIT(x) - 1)
+
+#define KEYPAD_ROWS 9
+#define KEYPAD_COLS 9
+
+#define DEBOUNCE_MIN 0x400ul
+#define DEBOUNCE_MAX 0x3ffffffful
+
+struct keypad_regs {
+ u32 rev;
+ u32 mode;
+ u32 mask;
+ u32 pol;
+ u32 dclock;
+ u32 rclock;
+ u32 stable_cnt;
+ u32 in_en;
+ u32 out;
+ u32 out_en;
+ u32 in;
+ u32 lock;
+ u32 pres[3];
+};
+
+#define keypad_read(kp, reg) __raw_readl(&(kp)->regs->reg)
+#define keypad_write(kp, reg, val) __raw_writel(val, &(kp)->regs->reg)
+
+struct keypad_data {
+ struct input_dev *input_dev;
+ struct resource *res;
+ struct keypad_regs __iomem *regs;
+ struct clk *clk;
+ struct device *dev;
+ spinlock_t lock;
+ u32 irq_press;
+ u32 irq_release;
+ int rows, cols, row_shift;
+ int debounce_ms, active_low;
+ u32 prev_keys[3];
+ unsigned short keycodes[];
+};
+
+static irqreturn_t keypad_irq(int irq, void *data)
+{
+ struct keypad_data *kp = data;
+ int i, bit, val, row, col, code;
+ unsigned long flags;
+ u32 curr_keys[3];
+ u32 change;
+
+ spin_lock_irqsave(&kp->lock, flags);
+
+ memset(curr_keys, 0, sizeof(curr_keys));
+ if (irq == kp->irq_press)
+ for (i = 0; i < 3; i++)
+ curr_keys[i] = keypad_read(kp, pres[i]);
+
+ for (i = 0; i < 3; i++) {
+ change = curr_keys[i] ^ kp->prev_keys[i];
+
+ while (change) {
+ bit = fls(change) - 1;
+ change ^= BIT(bit);
+ val = curr_keys[i] & BIT(bit);
+ bit += i * 32;
+ row = bit / KEYPAD_COLS;
+ col = bit % KEYPAD_COLS;
+
+ code = MATRIX_SCAN_CODE(row, col, kp->row_shift);
+ input_event(kp->input_dev, EV_MSC, MSC_SCAN, code);
+ input_report_key(kp->input_dev, kp->keycodes[code],
+ val);
+ }
+ }
+ input_sync(kp->input_dev);
+ memcpy(kp->prev_keys, curr_keys, sizeof(curr_keys));
+
+ if (irq == kp->irq_press)
+ keypad_write(kp, lock, 0); /* Allow hardware updates */
+
+ spin_unlock_irqrestore(&kp->lock, flags);
+
+ return IRQ_HANDLED;
+}
+
+static int keypad_start(struct input_dev *dev)
+{
+ struct keypad_data *kp = input_get_drvdata(dev);
+ unsigned long mask, debounce, clk_rate_khz;
+ unsigned long flags;
+
+ clk_enable(kp->clk);
+ clk_rate_khz = clk_get_rate(kp->clk) / 1000;
+
+ spin_lock_irqsave(&kp->lock, flags);
+
+ /* Initialize device registers */
+ keypad_write(kp, mode, 0);
+
+ mask = BITS(kp->rows) << KEYPAD_COLS;
+ mask |= BITS(kp->cols);
+ keypad_write(kp, mask, ~mask);
+
+ keypad_write(kp, pol, kp->active_low ? 0 : 0x3ffff);
+ keypad_write(kp, stable_cnt, 3);
+
+ debounce = kp->debounce_ms * clk_rate_khz;
+ debounce = clamp(debounce, DEBOUNCE_MIN, DEBOUNCE_MAX);
+ keypad_write(kp, dclock, debounce);
+ keypad_write(kp, rclock, 4 * debounce);
+
+ keypad_write(kp, in_en, 1);
+
+ spin_unlock_irqrestore(&kp->lock, flags);
+
+ return 0;
+}
+
+static void keypad_stop(struct input_dev *dev)
+{
+ struct keypad_data *kp = input_get_drvdata(dev);
+
+ synchronize_irq(kp->irq_press);
+ synchronize_irq(kp->irq_release);
+ clk_disable(kp->clk);
+}
+
+static int __devinit keypad_probe(struct platform_device *pdev)
+{
+ const struct matrix_keypad_platform_data *pdata;
+ const struct matrix_keymap_data *keymap_data;
+ struct device *dev = &pdev->dev;
+ struct keypad_data *kp;
+ int error = 0, sz, row_shift;
+ u32 rev = 0;
+
+ pdata = pdev->dev.platform_data;
+ if (!pdata) {
+ dev_err(dev, "cannot find device data\n");
+ return -EINVAL;
+ }
+
+ keymap_data = pdata->keymap_data;
+ if (!keymap_data) {
+ dev_err(dev, "cannot find keymap data\n");
+ return -EINVAL;
+ }
+
+ row_shift = get_count_order(pdata->num_col_gpios);
+ sz = offsetof(struct keypad_data, keycodes);
+ sz += (pdata->num_row_gpios << row_shift) * sizeof(kp->keycodes[0]);
+ kp = kzalloc(sz, GFP_KERNEL);
+ if (!kp) {
+ dev_err(dev, "cannot allocate device info\n");
+ return -ENOMEM;
+ }
+
+ kp->dev = dev;
+ kp->rows = pdata->num_row_gpios;
+ kp->cols = pdata->num_col_gpios;
+ kp->row_shift = row_shift;
+ platform_set_drvdata(pdev, kp);
+ spin_lock_init(&kp->lock);
+
+ kp->irq_press = platform_get_irq_byname(pdev, "press");
+ kp->irq_release = platform_get_irq_byname(pdev, "release");
+ if (kp->irq_press < 0 || kp->irq_release < 0) {
+ dev_err(dev, "cannot determine device interrupts\n");
+ error = -ENODEV;
+ goto error_res;
+ }
+
+ kp->res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!kp->res) {
+ dev_err(dev, "cannot determine register area\n");
+ error = -ENODEV;
+ goto error_res;
+ }
+
+ if (!request_mem_region(kp->res->start, resource_size(kp->res),
+ pdev->name)) {
+ dev_err(dev, "cannot claim register memory\n");
+ kp->res = NULL;
+ error = -EINVAL;
+ goto error_res;
+ }
+
+ kp->regs = ioremap(kp->res->start, resource_size(kp->res));
+ if (!kp->regs) {
+ dev_err(dev, "cannot map register memory\n");
+ error = -ENOMEM;
+ goto error_map;
+ }
+
+ kp->clk = clk_get(dev, NULL);
+ if (IS_ERR(kp->clk)) {
+ dev_err(dev, "cannot claim device clock\n");
+ error = PTR_ERR(kp->clk);
+ goto error_clk;
+ }
+
+ error = request_threaded_irq(kp->irq_press, NULL, keypad_irq, 0,
+ dev_name(dev), kp);
+ if (error < 0) {
+ dev_err(kp->dev, "Could not allocate keypad press key irq\n");
+ goto error_irq_press;
+ }
+
+ error = request_threaded_irq(kp->irq_release, NULL, keypad_irq, 0,
+ dev_name(dev), kp);
+ if (error < 0) {
+ dev_err(kp->dev, "Could not allocate keypad release key irq\n");
+ goto error_irq_release;
+ }
+
+ kp->input_dev = input_allocate_device();
+ if (!kp->input_dev) {
+ dev_err(dev, "cannot allocate input device\n");
+ error = -ENOMEM;
+ goto error_input;
+ }
+ input_set_drvdata(kp->input_dev, kp);
+
+ kp->input_dev->name = pdev->name;
+ kp->input_dev->dev.parent = &pdev->dev;
+ kp->input_dev->open = keypad_start;
+ kp->input_dev->close = keypad_stop;
+ kp->input_dev->evbit[0] = BIT_MASK(EV_KEY);
+ if (!pdata->no_autorepeat)
+ kp->input_dev->evbit[0] |= BIT_MASK(EV_REP);
+
+ clk_enable(kp->clk);
+ rev = keypad_read(kp, rev);
+ kp->input_dev->id.bustype = BUS_HOST;
+ kp->input_dev->id.product = ((rev >> 8) & 0x07);
+ kp->input_dev->id.version = ((rev >> 16) & 0xfff);
+ clk_disable(kp->clk);
+
+ kp->input_dev->keycode = kp->keycodes;
+ kp->input_dev->keycodesize = sizeof(kp->keycodes[0]);
+ kp->input_dev->keycodemax = kp->rows << kp->row_shift;
+
+ matrix_keypad_build_keymap(keymap_data, kp->row_shift, kp->keycodes,
+ kp->input_dev->keybit);
+
+ input_set_capability(kp->input_dev, EV_MSC, MSC_SCAN);
+
+ error = input_register_device(kp->input_dev);
+ if (error < 0) {
+ dev_err(dev, "Could not register input device\n");
+ goto error_reg;
+ }
+
+ return 0;
+
+
+error_reg:
+ input_free_device(kp->input_dev);
+error_input:
+ free_irq(kp->irq_release, kp);
+error_irq_release:
+ free_irq(kp->irq_press, kp);
+error_irq_press:
+ clk_put(kp->clk);
+error_clk:
+ iounmap(kp->regs);
+error_map:
+ release_mem_region(kp->res->start, resource_size(kp->res));
+error_res:
+ platform_set_drvdata(pdev, NULL);
+ kfree(kp);
+ return error;
+}
+
+static int __devexit keypad_remove(struct platform_device *pdev)
+{
+ struct keypad_data *kp = platform_get_drvdata(pdev);
+
+ free_irq(kp->irq_press, kp);
+ free_irq(kp->irq_release, kp);
+ input_unregister_device(kp->input_dev);
+ clk_put(kp->clk);
+ iounmap(kp->regs);
+ release_mem_region(kp->res->start, resource_size(kp->res));
+ platform_set_drvdata(pdev, NULL);
+ kfree(kp);
+
+ return 0;
+}
+
+static struct platform_driver keypad_driver = {
+ .probe = keypad_probe,
+ .remove = __devexit_p(keypad_remove),
+ .driver.name = "tnetv107x-keypad",
+ .driver.owner = THIS_MODULE,
+};
+
+static int __init keypad_init(void)
+{
+ return platform_driver_register(&keypad_driver);
+}
+
+static void __exit keypad_exit(void)
+{
+ platform_driver_unregister(&keypad_driver);
+}
+
+module_init(keypad_init);
+module_exit(keypad_exit);
+
+MODULE_AUTHOR("Cyril Chemparathy");
+MODULE_DESCRIPTION("TNETV107X Keypad Driver");
+MODULE_ALIAS("platform:tnetv107x-keypad");
+MODULE_LICENSE("GPL");
diff --git a/drivers/input/keyboard/twl4030_keypad.c b/drivers/input/keyboard/twl4030_keypad.c
new file mode 100644
index 0000000..a26922c
--- /dev/null
+++ b/drivers/input/keyboard/twl4030_keypad.c
@@ -0,0 +1,480 @@
+/*
+ * twl4030_keypad.c - driver for 8x8 keypad controller in twl4030 chips
+ *
+ * Copyright (C) 2007 Texas Instruments, Inc.
+ * Copyright (C) 2008 Nokia Corporation
+ *
+ * Code re-written for 2430SDP by:
+ * Syed Mohammed Khasim <x0khasim@ti.com>
+ *
+ * Initial Code:
+ * Manjunatha G K <manjugk@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/input.h>
+#include <linux/platform_device.h>
+#include <linux/i2c/twl.h>
+#include <linux/slab.h>
+
+
+/*
+ * The TWL4030 family chips include a keypad controller that supports
+ * up to an 8x8 switch matrix. The controller can issue system wakeup
+ * events, since it uses only the always-on 32KiHz oscillator, and has
+ * an internal state machine that decodes pressed keys, including
+ * multi-key combinations.
+ *
+ * This driver lets boards define what keycodes they wish to report for
+ * which scancodes, as part of the "struct twl4030_keypad_data" used in
+ * the probe() routine.
+ *
+ * See the TPS65950 documentation; that's the general availability
+ * version of the TWL5030 second generation part.
+ */
+#define TWL4030_MAX_ROWS 8 /* TWL4030 hard limit */
+#define TWL4030_MAX_COLS 8
+/*
+ * Note that we add space for an extra column so that we can handle
+ * row lines connected to the gnd (see twl4030_col_xlate()).
+ */
+#define TWL4030_ROW_SHIFT 4
+#define TWL4030_KEYMAP_SIZE (TWL4030_MAX_ROWS << TWL4030_ROW_SHIFT)
+
+struct twl4030_keypad {
+ unsigned short keymap[TWL4030_KEYMAP_SIZE];
+ u16 kp_state[TWL4030_MAX_ROWS];
+ unsigned n_rows;
+ unsigned n_cols;
+ unsigned irq;
+
+ struct device *dbg_dev;
+ struct input_dev *input;
+};
+
+/*----------------------------------------------------------------------*/
+
+/* arbitrary prescaler value 0..7 */
+#define PTV_PRESCALER 4
+
+/* Register Offsets */
+#define KEYP_CTRL 0x00
+#define KEYP_DEB 0x01
+#define KEYP_LONG_KEY 0x02
+#define KEYP_LK_PTV 0x03
+#define KEYP_TIMEOUT_L 0x04
+#define KEYP_TIMEOUT_H 0x05
+#define KEYP_KBC 0x06
+#define KEYP_KBR 0x07
+#define KEYP_SMS 0x08
+#define KEYP_FULL_CODE_7_0 0x09 /* row 0 column status */
+#define KEYP_FULL_CODE_15_8 0x0a /* ... row 1 ... */
+#define KEYP_FULL_CODE_23_16 0x0b
+#define KEYP_FULL_CODE_31_24 0x0c
+#define KEYP_FULL_CODE_39_32 0x0d
+#define KEYP_FULL_CODE_47_40 0x0e
+#define KEYP_FULL_CODE_55_48 0x0f
+#define KEYP_FULL_CODE_63_56 0x10
+#define KEYP_ISR1 0x11
+#define KEYP_IMR1 0x12
+#define KEYP_ISR2 0x13
+#define KEYP_IMR2 0x14
+#define KEYP_SIR 0x15
+#define KEYP_EDR 0x16 /* edge triggers */
+#define KEYP_SIH_CTRL 0x17
+
+/* KEYP_CTRL_REG Fields */
+#define KEYP_CTRL_SOFT_NRST BIT(0)
+#define KEYP_CTRL_SOFTMODEN BIT(1)
+#define KEYP_CTRL_LK_EN BIT(2)
+#define KEYP_CTRL_TOE_EN BIT(3)
+#define KEYP_CTRL_TOLE_EN BIT(4)
+#define KEYP_CTRL_RP_EN BIT(5)
+#define KEYP_CTRL_KBD_ON BIT(6)
+
+/* KEYP_DEB, KEYP_LONG_KEY, KEYP_TIMEOUT_x*/
+#define KEYP_PERIOD_US(t, prescale) ((t) / (31 << (prescale + 1)) - 1)
+
+/* KEYP_LK_PTV_REG Fields */
+#define KEYP_LK_PTV_PTV_SHIFT 5
+
+/* KEYP_{IMR,ISR,SIR} Fields */
+#define KEYP_IMR1_MIS BIT(3)
+#define KEYP_IMR1_TO BIT(2)
+#define KEYP_IMR1_LK BIT(1)
+#define KEYP_IMR1_KP BIT(0)
+
+/* KEYP_EDR Fields */
+#define KEYP_EDR_KP_FALLING 0x01
+#define KEYP_EDR_KP_RISING 0x02
+#define KEYP_EDR_KP_BOTH 0x03
+#define KEYP_EDR_LK_FALLING 0x04
+#define KEYP_EDR_LK_RISING 0x08
+#define KEYP_EDR_TO_FALLING 0x10
+#define KEYP_EDR_TO_RISING 0x20
+#define KEYP_EDR_MIS_FALLING 0x40
+#define KEYP_EDR_MIS_RISING 0x80
+
+
+/*----------------------------------------------------------------------*/
+
+static int twl4030_kpread(struct twl4030_keypad *kp,
+ u8 *data, u32 reg, u8 num_bytes)
+{
+ int ret = twl_i2c_read(TWL4030_MODULE_KEYPAD, data, reg, num_bytes);
+
+ if (ret < 0)
+ dev_warn(kp->dbg_dev,
+ "Couldn't read TWL4030: %X - ret %d[%x]\n",
+ reg, ret, ret);
+
+ return ret;
+}
+
+static int twl4030_kpwrite_u8(struct twl4030_keypad *kp, u8 data, u32 reg)
+{
+ int ret = twl_i2c_write_u8(TWL4030_MODULE_KEYPAD, data, reg);
+
+ if (ret < 0)
+ dev_warn(kp->dbg_dev,
+ "Could not write TWL4030: %X - ret %d[%x]\n",
+ reg, ret, ret);
+
+ return ret;
+}
+
+static inline u16 twl4030_col_xlate(struct twl4030_keypad *kp, u8 col)
+{
+ /* If all bits in a row are active for all coloumns then
+ * we have that row line connected to gnd. Mark this
+ * key on as if it was on matrix position n_cols (ie
+ * one higher than the size of the matrix).
+ */
+ if (col == 0xFF)
+ return 1 << kp->n_cols;
+ else
+ return col & ((1 << kp->n_cols) - 1);
+}
+
+static int twl4030_read_kp_matrix_state(struct twl4030_keypad *kp, u16 *state)
+{
+ u8 new_state[TWL4030_MAX_ROWS];
+ int row;
+ int ret = twl4030_kpread(kp, new_state,
+ KEYP_FULL_CODE_7_0, kp->n_rows);
+ if (ret >= 0)
+ for (row = 0; row < kp->n_rows; row++)
+ state[row] = twl4030_col_xlate(kp, new_state[row]);
+
+ return ret;
+}
+
+static bool twl4030_is_in_ghost_state(struct twl4030_keypad *kp, u16 *key_state)
+{
+ int i;
+ u16 check = 0;
+
+ for (i = 0; i < kp->n_rows; i++) {
+ u16 col = key_state[i];
+
+ if ((col & check) && hweight16(col) > 1)
+ return true;
+
+ check |= col;
+ }
+
+ return false;
+}
+
+static void twl4030_kp_scan(struct twl4030_keypad *kp, bool release_all)
+{
+ struct input_dev *input = kp->input;
+ u16 new_state[TWL4030_MAX_ROWS];
+ int col, row;
+
+ if (release_all)
+ memset(new_state, 0, sizeof(new_state));
+ else {
+ /* check for any changes */
+ int ret = twl4030_read_kp_matrix_state(kp, new_state);
+
+ if (ret < 0) /* panic ... */
+ return;
+
+ if (twl4030_is_in_ghost_state(kp, new_state))
+ return;
+ }
+
+ /* check for changes and print those */
+ for (row = 0; row < kp->n_rows; row++) {
+ int changed = new_state[row] ^ kp->kp_state[row];
+
+ if (!changed)
+ continue;
+
+ /* Extra column handles "all gnd" rows */
+ for (col = 0; col < kp->n_cols + 1; col++) {
+ int code;
+
+ if (!(changed & (1 << col)))
+ continue;
+
+ dev_dbg(kp->dbg_dev, "key [%d:%d] %s\n", row, col,
+ (new_state[row] & (1 << col)) ?
+ "press" : "release");
+
+ code = MATRIX_SCAN_CODE(row, col, TWL4030_ROW_SHIFT);
+ input_event(input, EV_MSC, MSC_SCAN, code);
+ input_report_key(input, kp->keymap[code],
+ new_state[row] & (1 << col));
+ }
+ kp->kp_state[row] = new_state[row];
+ }
+ input_sync(input);
+}
+
+/*
+ * Keypad interrupt handler
+ */
+static irqreturn_t do_kp_irq(int irq, void *_kp)
+{
+ struct twl4030_keypad *kp = _kp;
+ u8 reg;
+ int ret;
+
+ /* Read & Clear TWL4030 pending interrupt */
+ ret = twl4030_kpread(kp, ®, KEYP_ISR1, 1);
+
+ /* Release all keys if I2C has gone bad or
+ * the KEYP has gone to idle state */
+ if (ret >= 0 && (reg & KEYP_IMR1_KP))
+ twl4030_kp_scan(kp, false);
+ else
+ twl4030_kp_scan(kp, true);
+
+ return IRQ_HANDLED;
+}
+
+static int __devinit twl4030_kp_program(struct twl4030_keypad *kp)
+{
+ u8 reg;
+ int i;
+
+ /* Enable controller, with hardware decoding but not autorepeat */
+ reg = KEYP_CTRL_SOFT_NRST | KEYP_CTRL_SOFTMODEN
+ | KEYP_CTRL_TOE_EN | KEYP_CTRL_KBD_ON;
+ if (twl4030_kpwrite_u8(kp, reg, KEYP_CTRL) < 0)
+ return -EIO;
+
+ /* NOTE: we could use sih_setup() here to package keypad
+ * event sources as four different IRQs ... but we don't.
+ */
+
+ /* Enable TO rising and KP rising and falling edge detection */
+ reg = KEYP_EDR_KP_BOTH | KEYP_EDR_TO_RISING;
+ if (twl4030_kpwrite_u8(kp, reg, KEYP_EDR) < 0)
+ return -EIO;
+
+ /* Set PTV prescaler Field */
+ reg = (PTV_PRESCALER << KEYP_LK_PTV_PTV_SHIFT);
+ if (twl4030_kpwrite_u8(kp, reg, KEYP_LK_PTV) < 0)
+ return -EIO;
+
+ /* Set key debounce time to 20 ms */
+ i = KEYP_PERIOD_US(20000, PTV_PRESCALER);
+ if (twl4030_kpwrite_u8(kp, i, KEYP_DEB) < 0)
+ return -EIO;
+
+ /* Set timeout period to 100 ms */
+ i = KEYP_PERIOD_US(200000, PTV_PRESCALER);
+ if (twl4030_kpwrite_u8(kp, (i & 0xFF), KEYP_TIMEOUT_L) < 0)
+ return -EIO;
+
+ if (twl4030_kpwrite_u8(kp, (i >> 8), KEYP_TIMEOUT_H) < 0)
+ return -EIO;
+
+ /*
+ * Enable Clear-on-Read; disable remembering events that fire
+ * after the IRQ but before our handler acks (reads) them,
+ */
+ reg = TWL4030_SIH_CTRL_COR_MASK | TWL4030_SIH_CTRL_PENDDIS_MASK;
+ if (twl4030_kpwrite_u8(kp, reg, KEYP_SIH_CTRL) < 0)
+ return -EIO;
+
+ /* initialize key state; irqs update it from here on */
+ if (twl4030_read_kp_matrix_state(kp, kp->kp_state) < 0)
+ return -EIO;
+
+ return 0;
+}
+
+/*
+ * Registers keypad device with input subsystem
+ * and configures TWL4030 keypad registers
+ */
+static int __devinit twl4030_kp_probe(struct platform_device *pdev)
+{
+ struct twl4030_keypad_data *pdata = pdev->dev.platform_data;
+ const struct matrix_keymap_data *keymap_data;
+ struct twl4030_keypad *kp;
+ struct input_dev *input;
+ u8 reg;
+ int error;
+
+ if (!pdata || !pdata->rows || !pdata->cols || !pdata->keymap_data ||
+ pdata->rows > TWL4030_MAX_ROWS || pdata->cols > TWL4030_MAX_COLS) {
+ dev_err(&pdev->dev, "Invalid platform_data\n");
+ return -EINVAL;
+ }
+
+ keymap_data = pdata->keymap_data;
+
+ kp = kzalloc(sizeof(*kp), GFP_KERNEL);
+ input = input_allocate_device();
+ if (!kp || !input) {
+ error = -ENOMEM;
+ goto err1;
+ }
+
+ /* Get the debug Device */
+ kp->dbg_dev = &pdev->dev;
+ kp->input = input;
+
+ kp->n_rows = pdata->rows;
+ kp->n_cols = pdata->cols;
+ kp->irq = platform_get_irq(pdev, 0);
+
+ /* setup input device */
+ __set_bit(EV_KEY, input->evbit);
+
+ /* Enable auto repeat feature of Linux input subsystem */
+ if (pdata->rep)
+ __set_bit(EV_REP, input->evbit);
+
+ input_set_capability(input, EV_MSC, MSC_SCAN);
+
+ input->name = "TWL4030 Keypad";
+ input->phys = "twl4030_keypad/input0";
+ input->dev.parent = &pdev->dev;
+
+ input->id.bustype = BUS_HOST;
+ input->id.vendor = 0x0001;
+ input->id.product = 0x0001;
+ input->id.version = 0x0003;
+
+ input->keycode = kp->keymap;
+ input->keycodesize = sizeof(kp->keymap[0]);
+ input->keycodemax = ARRAY_SIZE(kp->keymap);
+
+ matrix_keypad_build_keymap(keymap_data, TWL4030_ROW_SHIFT,
+ input->keycode, input->keybit);
+
+ error = input_register_device(input);
+ if (error) {
+ dev_err(kp->dbg_dev,
+ "Unable to register twl4030 keypad device\n");
+ goto err1;
+ }
+
+ error = twl4030_kp_program(kp);
+ if (error)
+ goto err2;
+
+ /*
+ * This ISR will always execute in kernel thread context because of
+ * the need to access the TWL4030 over the I2C bus.
+ *
+ * NOTE: we assume this host is wired to TWL4040 INT1, not INT2 ...
+ */
+ error = request_threaded_irq(kp->irq, NULL, do_kp_irq,
+ 0, pdev->name, kp);
+ if (error) {
+ dev_info(kp->dbg_dev, "request_irq failed for irq no=%d\n",
+ kp->irq);
+ goto err2;
+ }
+
+ /* Enable KP and TO interrupts now. */
+ reg = (u8) ~(KEYP_IMR1_KP | KEYP_IMR1_TO);
+ if (twl4030_kpwrite_u8(kp, reg, KEYP_IMR1)) {
+ error = -EIO;
+ goto err3;
+ }
+
+ platform_set_drvdata(pdev, kp);
+ return 0;
+
+err3:
+ /* mask all events - we don't care about the result */
+ (void) twl4030_kpwrite_u8(kp, 0xff, KEYP_IMR1);
+ free_irq(kp->irq, NULL);
+err2:
+ input_unregister_device(input);
+ input = NULL;
+err1:
+ input_free_device(input);
+ kfree(kp);
+ return error;
+}
+
+static int __devexit twl4030_kp_remove(struct platform_device *pdev)
+{
+ struct twl4030_keypad *kp = platform_get_drvdata(pdev);
+
+ free_irq(kp->irq, kp);
+ input_unregister_device(kp->input);
+ platform_set_drvdata(pdev, NULL);
+ kfree(kp);
+
+ return 0;
+}
+
+/*
+ * NOTE: twl4030 are multi-function devices connected via I2C.
+ * So this device is a child of an I2C parent, thus it needs to
+ * support unplug/replug (which most platform devices don't).
+ */
+
+static struct platform_driver twl4030_kp_driver = {
+ .probe = twl4030_kp_probe,
+ .remove = __devexit_p(twl4030_kp_remove),
+ .driver = {
+ .name = "twl4030_keypad",
+ .owner = THIS_MODULE,
+ },
+};
+
+static int __init twl4030_kp_init(void)
+{
+ return platform_driver_register(&twl4030_kp_driver);
+}
+module_init(twl4030_kp_init);
+
+static void __exit twl4030_kp_exit(void)
+{
+ platform_driver_unregister(&twl4030_kp_driver);
+}
+module_exit(twl4030_kp_exit);
+
+MODULE_AUTHOR("Texas Instruments");
+MODULE_DESCRIPTION("TWL4030 Keypad Driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:twl4030_keypad");
+
diff --git a/drivers/input/keyboard/w90p910_keypad.c b/drivers/input/keyboard/w90p910_keypad.c
new file mode 100644
index 0000000..318586d
--- /dev/null
+++ b/drivers/input/keyboard/w90p910_keypad.c
@@ -0,0 +1,282 @@
+/*
+ * Copyright (c) 2008-2009 Nuvoton technology corporation.
+ *
+ * Wan ZongShun <mcuos.com@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation;version 2 of the License.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/input.h>
+#include <linux/device.h>
+#include <linux/platform_device.h>
+#include <linux/clk.h>
+#include <linux/err.h>
+#include <linux/io.h>
+#include <linux/slab.h>
+
+#include <mach/w90p910_keypad.h>
+
+/* Keypad Interface Control Registers */
+#define KPI_CONF 0x00
+#define KPI_3KCONF 0x04
+#define KPI_LPCONF 0x08
+#define KPI_STATUS 0x0C
+
+#define IS1KEY (0x01 << 16)
+#define INTTR (0x01 << 21)
+#define KEY0R (0x0f << 3)
+#define KEY0C 0x07
+#define DEBOUNCE_BIT 0x08
+#define KSIZE0 (0x01 << 16)
+#define KSIZE1 (0x01 << 17)
+#define KPSEL (0x01 << 19)
+#define ENKP (0x01 << 18)
+
+#define KGET_RAW(n) (((n) & KEY0R) >> 3)
+#define KGET_COLUMN(n) ((n) & KEY0C)
+
+#define W90P910_MAX_KEY_NUM (8 * 8)
+#define W90P910_ROW_SHIFT 3
+
+struct w90p910_keypad {
+ const struct w90p910_keypad_platform_data *pdata;
+ struct clk *clk;
+ struct input_dev *input_dev;
+ void __iomem *mmio_base;
+ int irq;
+ unsigned short keymap[W90P910_MAX_KEY_NUM];
+};
+
+static void w90p910_keypad_scan_matrix(struct w90p910_keypad *keypad,
+ unsigned int status)
+{
+ struct input_dev *input_dev = keypad->input_dev;
+ unsigned int row = KGET_RAW(status);
+ unsigned int col = KGET_COLUMN(status);
+ unsigned int code = MATRIX_SCAN_CODE(row, col, W90P910_ROW_SHIFT);
+ unsigned int key = keypad->keymap[code];
+
+ input_event(input_dev, EV_MSC, MSC_SCAN, code);
+ input_report_key(input_dev, key, 1);
+ input_sync(input_dev);
+
+ input_event(input_dev, EV_MSC, MSC_SCAN, code);
+ input_report_key(input_dev, key, 0);
+ input_sync(input_dev);
+}
+
+static irqreturn_t w90p910_keypad_irq_handler(int irq, void *dev_id)
+{
+ struct w90p910_keypad *keypad = dev_id;
+ unsigned int kstatus, val;
+
+ kstatus = __raw_readl(keypad->mmio_base + KPI_STATUS);
+
+ val = INTTR | IS1KEY;
+
+ if (kstatus & val)
+ w90p910_keypad_scan_matrix(keypad, kstatus);
+
+ return IRQ_HANDLED;
+}
+
+static int w90p910_keypad_open(struct input_dev *dev)
+{
+ struct w90p910_keypad *keypad = input_get_drvdata(dev);
+ const struct w90p910_keypad_platform_data *pdata = keypad->pdata;
+ unsigned int val, config;
+
+ /* Enable unit clock */
+ clk_enable(keypad->clk);
+
+ val = __raw_readl(keypad->mmio_base + KPI_CONF);
+ val |= (KPSEL | ENKP);
+ val &= ~(KSIZE0 | KSIZE1);
+
+ config = pdata->prescale | (pdata->debounce << DEBOUNCE_BIT);
+
+ val |= config;
+
+ __raw_writel(val, keypad->mmio_base + KPI_CONF);
+
+ return 0;
+}
+
+static void w90p910_keypad_close(struct input_dev *dev)
+{
+ struct w90p910_keypad *keypad = input_get_drvdata(dev);
+
+ /* Disable clock unit */
+ clk_disable(keypad->clk);
+}
+
+static int __devinit w90p910_keypad_probe(struct platform_device *pdev)
+{
+ const struct w90p910_keypad_platform_data *pdata =
+ pdev->dev.platform_data;
+ const struct matrix_keymap_data *keymap_data;
+ struct w90p910_keypad *keypad;
+ struct input_dev *input_dev;
+ struct resource *res;
+ int irq;
+ int error;
+
+ if (!pdata) {
+ dev_err(&pdev->dev, "no platform data defined\n");
+ return -EINVAL;
+ }
+
+ keymap_data = pdata->keymap_data;
+
+ irq = platform_get_irq(pdev, 0);
+ if (irq < 0) {
+ dev_err(&pdev->dev, "failed to get keypad irq\n");
+ return -ENXIO;
+ }
+
+ keypad = kzalloc(sizeof(struct w90p910_keypad), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!keypad || !input_dev) {
+ dev_err(&pdev->dev, "failed to allocate driver data\n");
+ error = -ENOMEM;
+ goto failed_free;
+ }
+
+ keypad->pdata = pdata;
+ keypad->input_dev = input_dev;
+ keypad->irq = irq;
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (res == NULL) {
+ dev_err(&pdev->dev, "failed to get I/O memory\n");
+ error = -ENXIO;
+ goto failed_free;
+ }
+
+ res = request_mem_region(res->start, resource_size(res), pdev->name);
+ if (res == NULL) {
+ dev_err(&pdev->dev, "failed to request I/O memory\n");
+ error = -EBUSY;
+ goto failed_free;
+ }
+
+ keypad->mmio_base = ioremap(res->start, resource_size(res));
+ if (keypad->mmio_base == NULL) {
+ dev_err(&pdev->dev, "failed to remap I/O memory\n");
+ error = -ENXIO;
+ goto failed_free_res;
+ }
+
+ keypad->clk = clk_get(&pdev->dev, NULL);
+ if (IS_ERR(keypad->clk)) {
+ dev_err(&pdev->dev, "failed to get keypad clock\n");
+ error = PTR_ERR(keypad->clk);
+ goto failed_free_io;
+ }
+
+ /* set multi-function pin for w90p910 kpi. */
+ mfp_set_groupi(&pdev->dev);
+
+ input_dev->name = pdev->name;
+ input_dev->id.bustype = BUS_HOST;
+ input_dev->open = w90p910_keypad_open;
+ input_dev->close = w90p910_keypad_close;
+ input_dev->dev.parent = &pdev->dev;
+
+ input_dev->keycode = keypad->keymap;
+ input_dev->keycodesize = sizeof(keypad->keymap[0]);
+ input_dev->keycodemax = ARRAY_SIZE(keypad->keymap);
+
+ input_set_drvdata(input_dev, keypad);
+
+ input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP);
+ input_set_capability(input_dev, EV_MSC, MSC_SCAN);
+
+ matrix_keypad_build_keymap(keymap_data, W90P910_ROW_SHIFT,
+ input_dev->keycode, input_dev->keybit);
+
+ error = request_irq(keypad->irq, w90p910_keypad_irq_handler,
+ 0, pdev->name, keypad);
+ if (error) {
+ dev_err(&pdev->dev, "failed to request IRQ\n");
+ goto failed_put_clk;
+ }
+
+ /* Register the input device */
+ error = input_register_device(input_dev);
+ if (error) {
+ dev_err(&pdev->dev, "failed to register input device\n");
+ goto failed_free_irq;
+ }
+
+ platform_set_drvdata(pdev, keypad);
+ return 0;
+
+failed_free_irq:
+ free_irq(irq, pdev);
+failed_put_clk:
+ clk_put(keypad->clk);
+failed_free_io:
+ iounmap(keypad->mmio_base);
+failed_free_res:
+ release_mem_region(res->start, resource_size(res));
+failed_free:
+ input_free_device(input_dev);
+ kfree(keypad);
+ return error;
+}
+
+static int __devexit w90p910_keypad_remove(struct platform_device *pdev)
+{
+ struct w90p910_keypad *keypad = platform_get_drvdata(pdev);
+ struct resource *res;
+
+ free_irq(keypad->irq, pdev);
+
+ clk_put(keypad->clk);
+
+ input_unregister_device(keypad->input_dev);
+
+ iounmap(keypad->mmio_base);
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ release_mem_region(res->start, resource_size(res));
+
+ platform_set_drvdata(pdev, NULL);
+ kfree(keypad);
+
+ return 0;
+}
+
+static struct platform_driver w90p910_keypad_driver = {
+ .probe = w90p910_keypad_probe,
+ .remove = __devexit_p(w90p910_keypad_remove),
+ .driver = {
+ .name = "nuc900-kpi",
+ .owner = THIS_MODULE,
+ },
+};
+
+static int __init w90p910_keypad_init(void)
+{
+ return platform_driver_register(&w90p910_keypad_driver);
+}
+
+static void __exit w90p910_keypad_exit(void)
+{
+ platform_driver_unregister(&w90p910_keypad_driver);
+}
+
+module_init(w90p910_keypad_init);
+module_exit(w90p910_keypad_exit);
+
+MODULE_AUTHOR("Wan ZongShun <mcuos.com@gmail.com>");
+MODULE_DESCRIPTION("w90p910 keypad driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:nuc900-keypad");
diff --git a/drivers/input/keyboard/xtkbd.c b/drivers/input/keyboard/xtkbd.c
new file mode 100644
index 0000000..37b01d7
--- /dev/null
+++ b/drivers/input/keyboard/xtkbd.c
@@ -0,0 +1,183 @@
+/*
+ * Copyright (c) 1999-2001 Vojtech Pavlik
+ */
+
+/*
+ * XT keyboard driver for Linux
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * Should you need to contact me, the author, you can do so either by
+ * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
+ * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
+ */
+
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/input.h>
+#include <linux/init.h>
+#include <linux/serio.h>
+
+#define DRIVER_DESC "XT keyboard driver"
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+#define XTKBD_EMUL0 0xe0
+#define XTKBD_EMUL1 0xe1
+#define XTKBD_KEY 0x7f
+#define XTKBD_RELEASE 0x80
+
+static unsigned char xtkbd_keycode[256] = {
+ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
+ 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31,
+ 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47,
+ 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63,
+ 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79,
+ 80, 81, 82, 83, 0, 0, 0, 87, 88, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 87, 88, 0, 0, 0, 0,110,111,103,108,105,
+ 106
+};
+
+struct xtkbd {
+ unsigned char keycode[256];
+ struct input_dev *dev;
+ struct serio *serio;
+ char phys[32];
+};
+
+static irqreturn_t xtkbd_interrupt(struct serio *serio,
+ unsigned char data, unsigned int flags)
+{
+ struct xtkbd *xtkbd = serio_get_drvdata(serio);
+
+ switch (data) {
+ case XTKBD_EMUL0:
+ case XTKBD_EMUL1:
+ break;
+ default:
+
+ if (xtkbd->keycode[data & XTKBD_KEY]) {
+ input_report_key(xtkbd->dev, xtkbd->keycode[data & XTKBD_KEY], !(data & XTKBD_RELEASE));
+ input_sync(xtkbd->dev);
+ } else {
+ printk(KERN_WARNING "xtkbd.c: Unknown key (scancode %#x) %s.\n",
+ data & XTKBD_KEY, data & XTKBD_RELEASE ? "released" : "pressed");
+ }
+ }
+ return IRQ_HANDLED;
+}
+
+static int xtkbd_connect(struct serio *serio, struct serio_driver *drv)
+{
+ struct xtkbd *xtkbd;
+ struct input_dev *input_dev;
+ int err = -ENOMEM;
+ int i;
+
+ xtkbd = kmalloc(sizeof(struct xtkbd), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!xtkbd || !input_dev)
+ goto fail1;
+
+ xtkbd->serio = serio;
+ xtkbd->dev = input_dev;
+ snprintf(xtkbd->phys, sizeof(xtkbd->phys), "%s/input0", serio->phys);
+ memcpy(xtkbd->keycode, xtkbd_keycode, sizeof(xtkbd->keycode));
+
+ input_dev->name = "XT Keyboard";
+ input_dev->phys = xtkbd->phys;
+ input_dev->id.bustype = BUS_XTKBD;
+ input_dev->id.vendor = 0x0001;
+ input_dev->id.product = 0x0001;
+ input_dev->id.version = 0x0100;
+ input_dev->dev.parent = &serio->dev;
+
+ input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP);
+ input_dev->keycode = xtkbd->keycode;
+ input_dev->keycodesize = sizeof(unsigned char);
+ input_dev->keycodemax = ARRAY_SIZE(xtkbd_keycode);
+
+ for (i = 0; i < 255; i++)
+ set_bit(xtkbd->keycode[i], input_dev->keybit);
+ clear_bit(0, input_dev->keybit);
+
+ serio_set_drvdata(serio, xtkbd);
+
+ err = serio_open(serio, drv);
+ if (err)
+ goto fail2;
+
+ err = input_register_device(xtkbd->dev);
+ if (err)
+ goto fail3;
+
+ return 0;
+
+ fail3: serio_close(serio);
+ fail2: serio_set_drvdata(serio, NULL);
+ fail1: input_free_device(input_dev);
+ kfree(xtkbd);
+ return err;
+}
+
+static void xtkbd_disconnect(struct serio *serio)
+{
+ struct xtkbd *xtkbd = serio_get_drvdata(serio);
+
+ serio_close(serio);
+ serio_set_drvdata(serio, NULL);
+ input_unregister_device(xtkbd->dev);
+ kfree(xtkbd);
+}
+
+static struct serio_device_id xtkbd_serio_ids[] = {
+ {
+ .type = SERIO_XT,
+ .proto = SERIO_ANY,
+ .id = SERIO_ANY,
+ .extra = SERIO_ANY,
+ },
+ { 0 }
+};
+
+MODULE_DEVICE_TABLE(serio, xtkbd_serio_ids);
+
+static struct serio_driver xtkbd_drv = {
+ .driver = {
+ .name = "xtkbd",
+ },
+ .description = DRIVER_DESC,
+ .id_table = xtkbd_serio_ids,
+ .interrupt = xtkbd_interrupt,
+ .connect = xtkbd_connect,
+ .disconnect = xtkbd_disconnect,
+};
+
+static int __init xtkbd_init(void)
+{
+ return serio_register_driver(&xtkbd_drv);
+}
+
+static void __exit xtkbd_exit(void)
+{
+ serio_unregister_driver(&xtkbd_drv);
+}
+
+module_init(xtkbd_init);
+module_exit(xtkbd_exit);
diff --git a/drivers/input/misc/88pm860x_onkey.c b/drivers/input/misc/88pm860x_onkey.c
new file mode 100644
index 0000000..3dca3c1
--- /dev/null
+++ b/drivers/input/misc/88pm860x_onkey.c
@@ -0,0 +1,155 @@
+/*
+ * 88pm860x_onkey.c - Marvell 88PM860x ONKEY driver
+ *
+ * Copyright (C) 2009-2010 Marvell International Ltd.
+ * Haojian Zhuang <haojian.zhuang@marvell.com>
+ *
+ * This file is subject to the terms and conditions of the GNU General
+ * Public License. See the file "COPYING" in the main directory of this
+ * archive for more details.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/i2c.h>
+#include <linux/input.h>
+#include <linux/interrupt.h>
+#include <linux/mfd/88pm860x.h>
+#include <linux/slab.h>
+
+#define PM8607_WAKEUP 0x0b
+
+#define LONG_ONKEY_EN (1 << 1)
+#define ONKEY_STATUS (1 << 0)
+
+struct pm860x_onkey_info {
+ struct input_dev *idev;
+ struct pm860x_chip *chip;
+ struct i2c_client *i2c;
+ struct device *dev;
+ int irq;
+};
+
+/* 88PM860x gives us an interrupt when ONKEY is held */
+static irqreturn_t pm860x_onkey_handler(int irq, void *data)
+{
+ struct pm860x_onkey_info *info = data;
+ int ret;
+
+ ret = pm860x_reg_read(info->i2c, PM8607_STATUS_2);
+ ret &= ONKEY_STATUS;
+ input_report_key(info->idev, KEY_POWER, ret);
+ input_sync(info->idev);
+
+ /* Enable 8-second long onkey detection */
+ pm860x_set_bits(info->i2c, PM8607_WAKEUP, 3, LONG_ONKEY_EN);
+ return IRQ_HANDLED;
+}
+
+static int __devinit pm860x_onkey_probe(struct platform_device *pdev)
+{
+ struct pm860x_chip *chip = dev_get_drvdata(pdev->dev.parent);
+ struct pm860x_onkey_info *info;
+ int irq, ret;
+
+ irq = platform_get_irq(pdev, 0);
+ if (irq < 0) {
+ dev_err(&pdev->dev, "No IRQ resource!\n");
+ return -EINVAL;
+ }
+
+ info = kzalloc(sizeof(struct pm860x_onkey_info), GFP_KERNEL);
+ if (!info)
+ return -ENOMEM;
+ info->chip = chip;
+ info->i2c = (chip->id == CHIP_PM8607) ? chip->client : chip->companion;
+ info->dev = &pdev->dev;
+ info->irq = irq;
+
+ info->idev = input_allocate_device();
+ if (!info->idev) {
+ dev_err(chip->dev, "Failed to allocate input dev\n");
+ ret = -ENOMEM;
+ goto out;
+ }
+
+ info->idev->name = "88pm860x_on";
+ info->idev->phys = "88pm860x_on/input0";
+ info->idev->id.bustype = BUS_I2C;
+ info->idev->dev.parent = &pdev->dev;
+ info->idev->evbit[0] = BIT_MASK(EV_KEY);
+ info->idev->keybit[BIT_WORD(KEY_POWER)] = BIT_MASK(KEY_POWER);
+
+ ret = input_register_device(info->idev);
+ if (ret) {
+ dev_err(chip->dev, "Can't register input device: %d\n", ret);
+ goto out_reg;
+ }
+
+ ret = request_threaded_irq(info->irq, NULL, pm860x_onkey_handler,
+ IRQF_ONESHOT, "onkey", info);
+ if (ret < 0) {
+ dev_err(chip->dev, "Failed to request IRQ: #%d: %d\n",
+ info->irq, ret);
+ goto out_irq;
+ }
+
+ platform_set_drvdata(pdev, info);
+ return 0;
+
+out_irq:
+ input_unregister_device(info->idev);
+ kfree(info);
+ return ret;
+
+out_reg:
+ input_free_device(info->idev);
+out:
+ kfree(info);
+ return ret;
+}
+
+static int __devexit pm860x_onkey_remove(struct platform_device *pdev)
+{
+ struct pm860x_onkey_info *info = platform_get_drvdata(pdev);
+
+ free_irq(info->irq, info);
+ input_unregister_device(info->idev);
+ kfree(info);
+ return 0;
+}
+
+static struct platform_driver pm860x_onkey_driver = {
+ .driver = {
+ .name = "88pm860x-onkey",
+ .owner = THIS_MODULE,
+ },
+ .probe = pm860x_onkey_probe,
+ .remove = __devexit_p(pm860x_onkey_remove),
+};
+
+static int __init pm860x_onkey_init(void)
+{
+ return platform_driver_register(&pm860x_onkey_driver);
+}
+module_init(pm860x_onkey_init);
+
+static void __exit pm860x_onkey_exit(void)
+{
+ platform_driver_unregister(&pm860x_onkey_driver);
+}
+module_exit(pm860x_onkey_exit);
+
+MODULE_DESCRIPTION("Marvell 88PM860x ONKEY driver");
+MODULE_AUTHOR("Haojian Zhuang <haojian.zhuang@marvell.com>");
+MODULE_LICENSE("GPL");
diff --git a/drivers/input/misc/Kconfig b/drivers/input/misc/Kconfig
new file mode 100644
index 0000000..22d875f
--- /dev/null
+++ b/drivers/input/misc/Kconfig
@@ -0,0 +1,547 @@
+#
+# Input misc drivers configuration
+#
+menuconfig INPUT_MISC
+ bool "Miscellaneous devices"
+ help
+ Say Y here, and a list of miscellaneous input drivers will be displayed.
+ Everything that didn't fit into the other categories is here. This option
+ doesn't affect the kernel.
+
+ If unsure, say Y.
+
+if INPUT_MISC
+
+config INPUT_88PM860X_ONKEY
+ tristate "88PM860x ONKEY support"
+ depends on MFD_88PM860X
+ help
+ Support the ONKEY of Marvell 88PM860x PMICs as an input device
+ reporting power button status.
+
+ To compile this driver as a module, choose M here: the module
+ will be called 88pm860x_onkey.
+
+config INPUT_AB8500_PONKEY
+ tristate "AB8500 Pon (PowerOn) Key"
+ depends on AB8500_CORE
+ help
+ Say Y here to use the PowerOn Key for ST-Ericsson's AB8500
+ Mix-Sig PMIC.
+
+ To compile this driver as a module, choose M here: the module
+ will be called ab8500-ponkey.
+
+config INPUT_AD714X
+ tristate "Analog Devices AD714x Capacitance Touch Sensor"
+ help
+ Say Y here if you want to support an AD7142/3/7/8/7A touch sensor.
+
+ You should select a bus connection too.
+
+ To compile this driver as a module, choose M here: the
+ module will be called ad714x.
+
+config INPUT_AD714X_I2C
+ tristate "support I2C bus connection"
+ depends on INPUT_AD714X && I2C
+ default y
+ help
+ Say Y here if you have AD7142/AD7147 hooked to an I2C bus.
+
+ To compile this driver as a module, choose M here: the
+ module will be called ad714x-i2c.
+
+config INPUT_AD714X_SPI
+ tristate "support SPI bus connection"
+ depends on INPUT_AD714X && SPI
+ default y
+ help
+ Say Y here if you have AD7142/AD7147 hooked to a SPI bus.
+
+ To compile this driver as a module, choose M here: the
+ module will be called ad714x-spi.
+
+config INPUT_BMA150
+ tristate "BMA150/SMB380 acceleration sensor support"
+ depends on I2C
+ select INPUT_POLLDEV
+ help
+ Say Y here if you have Bosch Sensortec's BMA150 or SMB380
+ acceleration sensor hooked to an I2C bus.
+
+ To compile this driver as a module, choose M here: the
+ module will be called bma150.
+
+config INPUT_PCSPKR
+ tristate "PC Speaker support"
+ depends on PCSPKR_PLATFORM
+ help
+ Say Y here if you want the standard PC Speaker to be used for
+ bells and whistles.
+
+ If unsure, say Y.
+
+ To compile this driver as a module, choose M here: the
+ module will be called pcspkr.
+
+config INPUT_PM8XXX_VIBRATOR
+ tristate "Qualcomm PM8XXX vibrator support"
+ depends on MFD_PM8XXX
+ select INPUT_FF_MEMLESS
+ help
+ This option enables device driver support for the vibrator
+ on Qualcomm PM8xxx chip. This driver supports ff-memless interface
+ from input framework.
+
+ To compile this driver as module, choose M here: the
+ module will be called pm8xxx-vibrator.
+
+config INPUT_PMIC8XXX_PWRKEY
+ tristate "PMIC8XXX power key support"
+ depends on MFD_PM8XXX
+ help
+ Say Y here if you want support for the PMIC8XXX power key.
+
+ If unsure, say N.
+
+ To compile this driver as a module, choose M here: the
+ module will be called pmic8xxx-pwrkey.
+
+config INPUT_SPARCSPKR
+ tristate "SPARC Speaker support"
+ depends on PCI && SPARC64
+ help
+ Say Y here if you want the standard Speaker on Sparc PCI systems
+ to be used for bells and whistles.
+
+ If unsure, say Y.
+
+ To compile this driver as a module, choose M here: the
+ module will be called sparcspkr.
+
+config INPUT_M68K_BEEP
+ tristate "M68k Beeper support"
+ depends on M68K
+
+config INPUT_MAX8925_ONKEY
+ tristate "MAX8925 ONKEY support"
+ depends on MFD_MAX8925
+ help
+ Support the ONKEY of MAX8925 PMICs as an input device
+ reporting power button status.
+
+ To compile this driver as a module, choose M here: the module
+ will be called max8925_onkey.
+
+config INPUT_MC13783_PWRBUTTON
+ tristate "MC13783 ON buttons"
+ depends on MFD_MC13783
+ help
+ Support the ON buttons of MC13783 PMIC as an input device
+ reporting power button status.
+
+ To compile this driver as a module, choose M here: the module
+ will be called mc13783-pwrbutton.
+
+config INPUT_MMA8450
+ tristate "MMA8450 - Freescale's 3-Axis, 8/12-bit Digital Accelerometer"
+ depends on I2C
+ select INPUT_POLLDEV
+ help
+ Say Y here if you want to support Freescale's MMA8450 Accelerometer
+ through I2C interface.
+
+ To compile this driver as a module, choose M here: the
+ module will be called mma8450.
+
+config INPUT_MPU3050
+ tristate "MPU3050 Triaxial gyroscope sensor"
+ depends on I2C
+ help
+ Say Y here if you want to support InvenSense MPU3050
+ connected via an I2C bus.
+
+ To compile this driver as a module, choose M here: the
+ module will be called mpu3050.
+
+config INPUT_APANEL
+ tristate "Fujitsu Lifebook Application Panel buttons"
+ depends on X86 && I2C && LEDS_CLASS
+ select INPUT_POLLDEV
+ select CHECK_SIGNATURE
+ help
+ Say Y here for support of the Application Panel buttons, used on
+ Fujitsu Lifebook. These are attached to the mainboard through
+ an SMBus interface managed by the I2C Intel ICH (i801) driver,
+ which you should also build for this kernel.
+
+ To compile this driver as a module, choose M here: the module will
+ be called apanel.
+
+config INPUT_IXP4XX_BEEPER
+ tristate "IXP4XX Beeper support"
+ depends on ARCH_IXP4XX
+ help
+ If you say yes here, you can connect a beeper to the
+ ixp4xx gpio pins. This is used by the LinkSys NSLU2.
+
+ If unsure, say Y.
+
+ To compile this driver as a module, choose M here: the
+ module will be called ixp4xx-beeper.
+
+config INPUT_COBALT_BTNS
+ tristate "Cobalt button interface"
+ depends on MIPS_COBALT
+ select INPUT_POLLDEV
+ help
+ Say Y here if you want to support MIPS Cobalt button interface.
+
+ To compile this driver as a module, choose M here: the
+ module will be called cobalt_btns.
+
+config INPUT_WISTRON_BTNS
+ tristate "x86 Wistron laptop button interface"
+ depends on X86 && !X86_64
+ select INPUT_POLLDEV
+ select INPUT_SPARSEKMAP
+ select NEW_LEDS
+ select LEDS_CLASS
+ select CHECK_SIGNATURE
+ help
+ Say Y here for support of Wistron laptop button interfaces, used on
+ laptops of various brands, including Acer and Fujitsu-Siemens. If
+ available, mail and wifi LEDs will be controllable via /sys/class/leds.
+
+ To compile this driver as a module, choose M here: the module will
+ be called wistron_btns.
+
+config INPUT_ATLAS_BTNS
+ tristate "x86 Atlas button interface"
+ depends on X86 && ACPI
+ help
+ Say Y here for support of Atlas wallmount touchscreen buttons.
+ The events will show up as scancodes F1 through F9 via evdev.
+
+ To compile this driver as a module, choose M here: the module will
+ be called atlas_btns.
+
+config INPUT_ATI_REMOTE2
+ tristate "ATI / Philips USB RF remote control"
+ depends on USB_ARCH_HAS_HCD
+ select USB
+ help
+ Say Y here if you want to use an ATI or Philips USB RF remote control.
+ These are RF remotes with USB receivers.
+ ATI Remote Wonder II comes with some ATI's All-In-Wonder video cards
+ and is also available as a separate product.
+ This driver provides mouse pointer, left and right mouse buttons,
+ and maps all the other remote buttons to keypress events.
+
+ To compile this driver as a module, choose M here: the module will be
+ called ati_remote2.
+
+config INPUT_KEYSPAN_REMOTE
+ tristate "Keyspan DMR USB remote control (EXPERIMENTAL)"
+ depends on EXPERIMENTAL
+ depends on USB_ARCH_HAS_HCD
+ select USB
+ help
+ Say Y here if you want to use a Keyspan DMR USB remote control.
+ Currently only the UIA-11 type of receiver has been tested. The tag
+ on the receiver that connects to the USB port should have a P/N that
+ will tell you what type of DMR you have. The UIA-10 type is not
+ supported at this time. This driver maps all buttons to keypress
+ events.
+
+ To compile this driver as a module, choose M here: the module will
+ be called keyspan_remote.
+
+config INPUT_KXTJ9
+ tristate "Kionix KXTJ9 tri-axis digital accelerometer"
+ depends on I2C
+ help
+ Say Y here to enable support for the Kionix KXTJ9 digital tri-axis
+ accelerometer.
+
+ To compile this driver as a module, choose M here: the module will
+ be called kxtj9.
+
+config INPUT_KXTJ9_POLLED_MODE
+ bool "Enable polling mode support"
+ depends on INPUT_KXTJ9
+ select INPUT_POLLDEV
+ help
+ Say Y here if you need accelerometer to work in polling mode.
+
+config INPUT_POWERMATE
+ tristate "Griffin PowerMate and Contour Jog support"
+ depends on USB_ARCH_HAS_HCD
+ select USB
+ help
+ Say Y here if you want to use Griffin PowerMate or Contour Jog devices.
+ These are aluminum dials which can measure clockwise and anticlockwise
+ rotation. The dial also acts as a pushbutton. The base contains an LED
+ which can be instructed to pulse or to switch to a particular intensity.
+
+ You can download userspace tools from
+ <http://sowerbutts.com/powermate/>.
+
+ To compile this driver as a module, choose M here: the
+ module will be called powermate.
+
+config INPUT_YEALINK
+ tristate "Yealink usb-p1k voip phone"
+ depends on EXPERIMENTAL
+ depends on USB_ARCH_HAS_HCD
+ select USB
+ help
+ Say Y here if you want to enable keyboard and LCD functions of the
+ Yealink usb-p1k usb phones. The audio part is enabled by the generic
+ usb sound driver, so you might want to enable that as well.
+
+ For information about how to use these additional functions, see
+ <file:Documentation/input/yealink.txt>.
+
+ To compile this driver as a module, choose M here: the module will be
+ called yealink.
+
+config INPUT_CM109
+ tristate "C-Media CM109 USB I/O Controller"
+ depends on EXPERIMENTAL
+ depends on USB_ARCH_HAS_HCD
+ select USB
+ help
+ Say Y here if you want to enable keyboard and buzzer functions of the
+ C-Media CM109 usb phones. The audio part is enabled by the generic
+ usb sound driver, so you might want to enable that as well.
+
+ To compile this driver as a module, choose M here: the module will be
+ called cm109.
+
+config INPUT_TWL4030_PWRBUTTON
+ tristate "TWL4030 Power button Driver"
+ depends on TWL4030_CORE
+ help
+ Say Y here if you want to enable power key reporting via the
+ TWL4030 family of chips.
+
+ To compile this driver as a module, choose M here. The module will
+ be called twl4030_pwrbutton.
+
+config INPUT_TWL4030_VIBRA
+ tristate "Support for TWL4030 Vibrator"
+ depends on TWL4030_CORE
+ select MFD_TWL4030_AUDIO
+ select INPUT_FF_MEMLESS
+ help
+ This option enables support for TWL4030 Vibrator Driver.
+
+ To compile this driver as a module, choose M here. The module will
+ be called twl4030_vibra.
+
+config INPUT_TWL6040_VIBRA
+ tristate "Support for TWL6040 Vibrator"
+ depends on TWL4030_CORE
+ select TWL6040_CORE
+ select INPUT_FF_MEMLESS
+ help
+ This option enables support for TWL6040 Vibrator Driver.
+
+ To compile this driver as a module, choose M here. The module will
+ be called twl6040_vibra.
+
+config INPUT_UINPUT
+ tristate "User level driver support"
+ help
+ Say Y here if you want to support user level drivers for input
+ subsystem accessible under char device 10:223 - /dev/input/uinput.
+
+ To compile this driver as a module, choose M here: the
+ module will be called uinput.
+
+config INPUT_SGI_BTNS
+ tristate "SGI Indy/O2 volume button interface"
+ depends on SGI_IP22 || SGI_IP32
+ select INPUT_POLLDEV
+ help
+ Say Y here if you want to support SGI Indy/O2 volume button interface.
+
+ To compile this driver as a module, choose M here: the
+ module will be called sgi_btns.
+
+config HP_SDC_RTC
+ tristate "HP SDC Real Time Clock"
+ depends on (GSC || HP300) && SERIO
+ select HP_SDC
+ help
+ Say Y here if you want to support the built-in real time clock
+ of the HP SDC controller.
+
+config INPUT_PCF50633_PMU
+ tristate "PCF50633 PMU events"
+ depends on MFD_PCF50633
+ help
+ Say Y to include support for delivering PMU events via input
+ layer on NXP PCF50633.
+
+config INPUT_PCF8574
+ tristate "PCF8574 Keypad input device"
+ depends on I2C && EXPERIMENTAL
+ help
+ Say Y here if you want to support a keypad connetced via I2C
+ with a PCF8574.
+
+ To compile this driver as a module, choose M here: the
+ module will be called pcf8574_keypad.
+
+config INPUT_PWM_BEEPER
+ tristate "PWM beeper support"
+ depends on HAVE_PWM
+ help
+ Say Y here to get support for PWM based beeper devices.
+
+ If unsure, say N.
+
+ To compile this driver as a module, choose M here: the module will be
+ called pwm-beeper.
+
+config INPUT_GPIO_ROTARY_ENCODER
+ tristate "Rotary encoders connected to GPIO pins"
+ depends on GPIOLIB && GENERIC_GPIO
+ help
+ Say Y here to add support for rotary encoders connected to GPIO lines.
+ Check file:Documentation/input/rotary-encoder.txt for more
+ information.
+
+ To compile this driver as a module, choose M here: the
+ module will be called rotary_encoder.
+
+config INPUT_RB532_BUTTON
+ tristate "Mikrotik Routerboard 532 button interface"
+ depends on MIKROTIK_RB532
+ depends on GPIOLIB && GENERIC_GPIO
+ select INPUT_POLLDEV
+ help
+ Say Y here if you want support for the S1 button built into
+ Mikrotik's Routerboard 532.
+
+ To compile this driver as a module, choose M here: the
+ module will be called rb532_button.
+
+config INPUT_DM355EVM
+ tristate "TI DaVinci DM355 EVM Keypad and IR Remote"
+ depends on MFD_DM355EVM_MSP
+ select INPUT_SPARSEKMAP
+ help
+ Supports the pushbuttons and IR remote used with
+ the DM355 EVM board.
+
+ To compile this driver as a module, choose M here: the
+ module will be called dm355evm_keys.
+
+config INPUT_BFIN_ROTARY
+ tristate "Blackfin Rotary support"
+ depends on BF54x || BF52x
+ help
+ Say Y here if you want to use the Blackfin Rotary.
+
+ To compile this driver as a module, choose M here: the
+ module will be called bfin-rotary.
+
+config INPUT_WM831X_ON
+ tristate "WM831X ON pin"
+ depends on MFD_WM831X
+ help
+ Support the ON pin of WM831X PMICs as an input device
+ reporting power button status.
+
+ To compile this driver as a module, choose M here: the module
+ will be called wm831x_on.
+
+config INPUT_PCAP
+ tristate "Motorola EZX PCAP misc input events"
+ depends on EZX_PCAP
+ help
+ Say Y here if you want to use Power key and Headphone button
+ on Motorola EZX phones.
+
+ To compile this driver as a module, choose M here: the
+ module will be called pcap_keys.
+
+config INPUT_ADXL34X
+ tristate "Analog Devices ADXL34x Three-Axis Digital Accelerometer"
+ default n
+ help
+ Say Y here if you have a Accelerometer interface using the
+ ADXL345/6 controller, and your board-specific initialization
+ code includes that in its table of devices.
+
+ This driver can use either I2C or SPI communication to the
+ ADXL345/6 controller. Select the appropriate method for
+ your system.
+
+ If unsure, say N (but it's safe to say "Y").
+
+ To compile this driver as a module, choose M here: the
+ module will be called adxl34x.
+
+config INPUT_ADXL34X_I2C
+ tristate "support I2C bus connection"
+ depends on INPUT_ADXL34X && I2C
+ default y
+ help
+ Say Y here if you have ADXL345/6 hooked to an I2C bus.
+
+ To compile this driver as a module, choose M here: the
+ module will be called adxl34x-i2c.
+
+config INPUT_ADXL34X_SPI
+ tristate "support SPI bus connection"
+ depends on INPUT_ADXL34X && SPI
+ default y
+ help
+ Say Y here if you have ADXL345/6 hooked to a SPI bus.
+
+ To compile this driver as a module, choose M here: the
+ module will be called adxl34x-spi.
+
+config INPUT_CMA3000
+ tristate "VTI CMA3000 Tri-axis accelerometer"
+ help
+ Say Y here if you want to use VTI CMA3000_D0x Accelerometer
+ driver
+
+ This driver currently only supports I2C interface to the
+ controller. Also select the I2C method.
+
+ If unsure, say N
+
+ To compile this driver as a module, choose M here: the
+ module will be called cma3000_d0x.
+
+config INPUT_CMA3000_I2C
+ tristate "Support I2C bus connection"
+ depends on INPUT_CMA3000 && I2C
+ help
+ Say Y here if you want to use VTI CMA3000_D0x Accelerometer
+ through I2C interface.
+
+ To compile this driver as a module, choose M here: the
+ module will be called cma3000_d0x_i2c.
+
+config INPUT_XEN_KBDDEV_FRONTEND
+ tristate "Xen virtual keyboard and mouse support"
+ depends on XEN_FBDEV_FRONTEND
+ default y
+ select XEN_XENBUS_FRONTEND
+ help
+ This driver implements the front-end of the Xen virtual
+ keyboard and mouse device driver. It communicates with a back-end
+ in another domain.
+
+ To compile this driver as a module, choose M here: the
+ module will be called xen-kbdfront.
+
+endif
diff --git a/drivers/input/misc/Makefile b/drivers/input/misc/Makefile
new file mode 100644
index 0000000..a244fc6
--- /dev/null
+++ b/drivers/input/misc/Makefile
@@ -0,0 +1,53 @@
+#
+# Makefile for the input misc drivers.
+#
+
+# Each configuration option enables a list of files.
+
+obj-$(CONFIG_INPUT_88PM860X_ONKEY) += 88pm860x_onkey.o
+obj-$(CONFIG_INPUT_AB8500_PONKEY) += ab8500-ponkey.o
+obj-$(CONFIG_INPUT_AD714X) += ad714x.o
+obj-$(CONFIG_INPUT_AD714X_I2C) += ad714x-i2c.o
+obj-$(CONFIG_INPUT_AD714X_SPI) += ad714x-spi.o
+obj-$(CONFIG_INPUT_ADXL34X) += adxl34x.o
+obj-$(CONFIG_INPUT_ADXL34X_I2C) += adxl34x-i2c.o
+obj-$(CONFIG_INPUT_ADXL34X_SPI) += adxl34x-spi.o
+obj-$(CONFIG_INPUT_APANEL) += apanel.o
+obj-$(CONFIG_INPUT_ATI_REMOTE2) += ati_remote2.o
+obj-$(CONFIG_INPUT_ATLAS_BTNS) += atlas_btns.o
+obj-$(CONFIG_INPUT_BFIN_ROTARY) += bfin_rotary.o
+obj-$(CONFIG_INPUT_BMA150) += bma150.o
+obj-$(CONFIG_INPUT_CM109) += cm109.o
+obj-$(CONFIG_INPUT_CMA3000) += cma3000_d0x.o
+obj-$(CONFIG_INPUT_CMA3000_I2C) += cma3000_d0x_i2c.o
+obj-$(CONFIG_INPUT_COBALT_BTNS) += cobalt_btns.o
+obj-$(CONFIG_INPUT_DM355EVM) += dm355evm_keys.o
+obj-$(CONFIG_HP_SDC_RTC) += hp_sdc_rtc.o
+obj-$(CONFIG_INPUT_IXP4XX_BEEPER) += ixp4xx-beeper.o
+obj-$(CONFIG_INPUT_KEYSPAN_REMOTE) += keyspan_remote.o
+obj-$(CONFIG_INPUT_KXTJ9) += kxtj9.o
+obj-$(CONFIG_INPUT_M68K_BEEP) += m68kspkr.o
+obj-$(CONFIG_INPUT_MAX8925_ONKEY) += max8925_onkey.o
+obj-$(CONFIG_INPUT_MC13783_PWRBUTTON) += mc13783-pwrbutton.o
+obj-$(CONFIG_INPUT_MMA8450) += mma8450.o
+obj-$(CONFIG_INPUT_MPU3050) += mpu3050.o
+obj-$(CONFIG_INPUT_PCAP) += pcap_keys.o
+obj-$(CONFIG_INPUT_PCF50633_PMU) += pcf50633-input.o
+obj-$(CONFIG_INPUT_PCF8574) += pcf8574_keypad.o
+obj-$(CONFIG_INPUT_PCSPKR) += pcspkr.o
+obj-$(CONFIG_INPUT_PM8XXX_VIBRATOR) += pm8xxx-vibrator.o
+obj-$(CONFIG_INPUT_PMIC8XXX_PWRKEY) += pmic8xxx-pwrkey.o
+obj-$(CONFIG_INPUT_POWERMATE) += powermate.o
+obj-$(CONFIG_INPUT_PWM_BEEPER) += pwm-beeper.o
+obj-$(CONFIG_INPUT_RB532_BUTTON) += rb532_button.o
+obj-$(CONFIG_INPUT_GPIO_ROTARY_ENCODER) += rotary_encoder.o
+obj-$(CONFIG_INPUT_SGI_BTNS) += sgi_btns.o
+obj-$(CONFIG_INPUT_SPARCSPKR) += sparcspkr.o
+obj-$(CONFIG_INPUT_TWL4030_PWRBUTTON) += twl4030-pwrbutton.o
+obj-$(CONFIG_INPUT_TWL4030_VIBRA) += twl4030-vibra.o
+obj-$(CONFIG_INPUT_TWL6040_VIBRA) += twl6040-vibra.o
+obj-$(CONFIG_INPUT_UINPUT) += uinput.o
+obj-$(CONFIG_INPUT_WISTRON_BTNS) += wistron_btns.o
+obj-$(CONFIG_INPUT_WM831X_ON) += wm831x-on.o
+obj-$(CONFIG_INPUT_XEN_KBDDEV_FRONTEND) += xen-kbdfront.o
+obj-$(CONFIG_INPUT_YEALINK) += yealink.o
diff --git a/drivers/input/misc/ab8500-ponkey.c b/drivers/input/misc/ab8500-ponkey.c
new file mode 100644
index 0000000..3d3288a
--- /dev/null
+++ b/drivers/input/misc/ab8500-ponkey.c
@@ -0,0 +1,157 @@
+/*
+ * Copyright (C) ST-Ericsson SA 2010
+ *
+ * License Terms: GNU General Public License v2
+ * Author: Sundar Iyer <sundar.iyer@stericsson.com> for ST-Ericsson
+ *
+ * AB8500 Power-On Key handler
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/input.h>
+#include <linux/interrupt.h>
+#include <linux/mfd/ab8500.h>
+#include <linux/slab.h>
+
+/**
+ * struct ab8500_ponkey - ab8500 ponkey information
+ * @input_dev: pointer to input device
+ * @ab8500: ab8500 parent
+ * @irq_dbf: irq number for falling transition
+ * @irq_dbr: irq number for rising transition
+ */
+struct ab8500_ponkey {
+ struct input_dev *idev;
+ struct ab8500 *ab8500;
+ int irq_dbf;
+ int irq_dbr;
+};
+
+/* AB8500 gives us an interrupt when ONKEY is held */
+static irqreturn_t ab8500_ponkey_handler(int irq, void *data)
+{
+ struct ab8500_ponkey *ponkey = data;
+
+ if (irq == ponkey->irq_dbf)
+ input_report_key(ponkey->idev, KEY_POWER, true);
+ else if (irq == ponkey->irq_dbr)
+ input_report_key(ponkey->idev, KEY_POWER, false);
+
+ input_sync(ponkey->idev);
+
+ return IRQ_HANDLED;
+}
+
+static int __devinit ab8500_ponkey_probe(struct platform_device *pdev)
+{
+ struct ab8500 *ab8500 = dev_get_drvdata(pdev->dev.parent);
+ struct ab8500_ponkey *ponkey;
+ struct input_dev *input;
+ int irq_dbf, irq_dbr;
+ int error;
+
+ irq_dbf = platform_get_irq_byname(pdev, "ONKEY_DBF");
+ if (irq_dbf < 0) {
+ dev_err(&pdev->dev, "No IRQ for ONKEY_DBF, error=%d\n", irq_dbf);
+ return irq_dbf;
+ }
+
+ irq_dbr = platform_get_irq_byname(pdev, "ONKEY_DBR");
+ if (irq_dbr < 0) {
+ dev_err(&pdev->dev, "No IRQ for ONKEY_DBR, error=%d\n", irq_dbr);
+ return irq_dbr;
+ }
+
+ ponkey = kzalloc(sizeof(struct ab8500_ponkey), GFP_KERNEL);
+ input = input_allocate_device();
+ if (!ponkey || !input) {
+ error = -ENOMEM;
+ goto err_free_mem;
+ }
+
+ ponkey->idev = input;
+ ponkey->ab8500 = ab8500;
+ ponkey->irq_dbf = irq_dbf;
+ ponkey->irq_dbr = irq_dbr;
+
+ input->name = "AB8500 POn(PowerOn) Key";
+ input->dev.parent = &pdev->dev;
+
+ input_set_capability(input, EV_KEY, KEY_POWER);
+
+ error = request_any_context_irq(ponkey->irq_dbf, ab8500_ponkey_handler,
+ 0, "ab8500-ponkey-dbf", ponkey);
+ if (error < 0) {
+ dev_err(ab8500->dev, "Failed to request dbf IRQ#%d: %d\n",
+ ponkey->irq_dbf, error);
+ goto err_free_mem;
+ }
+
+ error = request_any_context_irq(ponkey->irq_dbr, ab8500_ponkey_handler,
+ 0, "ab8500-ponkey-dbr", ponkey);
+ if (error < 0) {
+ dev_err(ab8500->dev, "Failed to request dbr IRQ#%d: %d\n",
+ ponkey->irq_dbr, error);
+ goto err_free_dbf_irq;
+ }
+
+ error = input_register_device(ponkey->idev);
+ if (error) {
+ dev_err(ab8500->dev, "Can't register input device: %d\n", error);
+ goto err_free_dbr_irq;
+ }
+
+ platform_set_drvdata(pdev, ponkey);
+ return 0;
+
+err_free_dbr_irq:
+ free_irq(ponkey->irq_dbr, ponkey);
+err_free_dbf_irq:
+ free_irq(ponkey->irq_dbf, ponkey);
+err_free_mem:
+ input_free_device(input);
+ kfree(ponkey);
+
+ return error;
+}
+
+static int __devexit ab8500_ponkey_remove(struct platform_device *pdev)
+{
+ struct ab8500_ponkey *ponkey = platform_get_drvdata(pdev);
+
+ free_irq(ponkey->irq_dbf, ponkey);
+ free_irq(ponkey->irq_dbr, ponkey);
+ input_unregister_device(ponkey->idev);
+ kfree(ponkey);
+
+ platform_set_drvdata(pdev, NULL);
+
+ return 0;
+}
+
+static struct platform_driver ab8500_ponkey_driver = {
+ .driver = {
+ .name = "ab8500-poweron-key",
+ .owner = THIS_MODULE,
+ },
+ .probe = ab8500_ponkey_probe,
+ .remove = __devexit_p(ab8500_ponkey_remove),
+};
+
+static int __init ab8500_ponkey_init(void)
+{
+ return platform_driver_register(&ab8500_ponkey_driver);
+}
+module_init(ab8500_ponkey_init);
+
+static void __exit ab8500_ponkey_exit(void)
+{
+ platform_driver_unregister(&ab8500_ponkey_driver);
+}
+module_exit(ab8500_ponkey_exit);
+
+MODULE_LICENSE("GPL v2");
+MODULE_AUTHOR("Sundar Iyer <sundar.iyer@stericsson.com>");
+MODULE_DESCRIPTION("ST-Ericsson AB8500 Power-ON(Pon) Key driver");
diff --git a/drivers/input/misc/ad714x-i2c.c b/drivers/input/misc/ad714x-i2c.c
new file mode 100644
index 0000000..56810fb
--- /dev/null
+++ b/drivers/input/misc/ad714x-i2c.c
@@ -0,0 +1,133 @@
+/*
+ * AD714X CapTouch Programmable Controller driver (I2C bus)
+ *
+ * Copyright 2009-2011 Analog Devices Inc.
+ *
+ * Licensed under the GPL-2 or later.
+ */
+
+#include <linux/input.h> /* BUS_I2C */
+#include <linux/i2c.h>
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/pm.h>
+#include "ad714x.h"
+
+#ifdef CONFIG_PM
+static int ad714x_i2c_suspend(struct device *dev)
+{
+ return ad714x_disable(i2c_get_clientdata(to_i2c_client(dev)));
+}
+
+static int ad714x_i2c_resume(struct device *dev)
+{
+ return ad714x_enable(i2c_get_clientdata(to_i2c_client(dev)));
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(ad714x_i2c_pm, ad714x_i2c_suspend, ad714x_i2c_resume);
+
+static int ad714x_i2c_write(struct ad714x_chip *chip,
+ unsigned short reg, unsigned short data)
+{
+ struct i2c_client *client = to_i2c_client(chip->dev);
+ int error;
+
+ chip->xfer_buf[0] = cpu_to_be16(reg);
+ chip->xfer_buf[1] = cpu_to_be16(data);
+
+ error = i2c_master_send(client, (u8 *)chip->xfer_buf,
+ 2 * sizeof(*chip->xfer_buf));
+ if (unlikely(error < 0)) {
+ dev_err(&client->dev, "I2C write error: %d\n", error);
+ return error;
+ }
+
+ return 0;
+}
+
+static int ad714x_i2c_read(struct ad714x_chip *chip,
+ unsigned short reg, unsigned short *data, size_t len)
+{
+ struct i2c_client *client = to_i2c_client(chip->dev);
+ int i;
+ int error;
+
+ chip->xfer_buf[0] = cpu_to_be16(reg);
+
+ error = i2c_master_send(client, (u8 *)chip->xfer_buf,
+ sizeof(*chip->xfer_buf));
+ if (error >= 0)
+ error = i2c_master_recv(client, (u8 *)chip->xfer_buf,
+ len * sizeof(*chip->xfer_buf));
+
+ if (unlikely(error < 0)) {
+ dev_err(&client->dev, "I2C read error: %d\n", error);
+ return error;
+ }
+
+ for (i = 0; i < len; i++)
+ data[i] = be16_to_cpu(chip->xfer_buf[i]);
+
+ return 0;
+}
+
+static int __devinit ad714x_i2c_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct ad714x_chip *chip;
+
+ chip = ad714x_probe(&client->dev, BUS_I2C, client->irq,
+ ad714x_i2c_read, ad714x_i2c_write);
+ if (IS_ERR(chip))
+ return PTR_ERR(chip);
+
+ i2c_set_clientdata(client, chip);
+
+ return 0;
+}
+
+static int __devexit ad714x_i2c_remove(struct i2c_client *client)
+{
+ struct ad714x_chip *chip = i2c_get_clientdata(client);
+
+ ad714x_remove(chip);
+
+ return 0;
+}
+
+static const struct i2c_device_id ad714x_id[] = {
+ { "ad7142_captouch", 0 },
+ { "ad7143_captouch", 0 },
+ { "ad7147_captouch", 0 },
+ { "ad7147a_captouch", 0 },
+ { "ad7148_captouch", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, ad714x_id);
+
+static struct i2c_driver ad714x_i2c_driver = {
+ .driver = {
+ .name = "ad714x_captouch",
+ .pm = &ad714x_i2c_pm,
+ },
+ .probe = ad714x_i2c_probe,
+ .remove = __devexit_p(ad714x_i2c_remove),
+ .id_table = ad714x_id,
+};
+
+static int __init ad714x_i2c_init(void)
+{
+ return i2c_add_driver(&ad714x_i2c_driver);
+}
+module_init(ad714x_i2c_init);
+
+static void __exit ad714x_i2c_exit(void)
+{
+ i2c_del_driver(&ad714x_i2c_driver);
+}
+module_exit(ad714x_i2c_exit);
+
+MODULE_DESCRIPTION("Analog Devices AD714X Capacitance Touch Sensor I2C Bus Driver");
+MODULE_AUTHOR("Barry Song <21cnbao@gmail.com>");
+MODULE_LICENSE("GPL");
diff --git a/drivers/input/misc/ad714x-spi.c b/drivers/input/misc/ad714x-spi.c
new file mode 100644
index 0000000..875b508
--- /dev/null
+++ b/drivers/input/misc/ad714x-spi.c
@@ -0,0 +1,140 @@
+/*
+ * AD714X CapTouch Programmable Controller driver (SPI bus)
+ *
+ * Copyright 2009-2011 Analog Devices Inc.
+ *
+ * Licensed under the GPL-2 or later.
+ */
+
+#include <linux/input.h> /* BUS_SPI */
+#include <linux/module.h>
+#include <linux/spi/spi.h>
+#include <linux/pm.h>
+#include <linux/types.h>
+#include "ad714x.h"
+
+#define AD714x_SPI_CMD_PREFIX 0xE000 /* bits 15:11 */
+#define AD714x_SPI_READ BIT(10)
+
+#ifdef CONFIG_PM
+static int ad714x_spi_suspend(struct device *dev)
+{
+ return ad714x_disable(spi_get_drvdata(to_spi_device(dev)));
+}
+
+static int ad714x_spi_resume(struct device *dev)
+{
+ return ad714x_enable(spi_get_drvdata(to_spi_device(dev)));
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(ad714x_spi_pm, ad714x_spi_suspend, ad714x_spi_resume);
+
+static int ad714x_spi_read(struct ad714x_chip *chip,
+ unsigned short reg, unsigned short *data, size_t len)
+{
+ struct spi_device *spi = to_spi_device(chip->dev);
+ struct spi_message message;
+ struct spi_transfer xfer[2];
+ int i;
+ int error;
+
+ spi_message_init(&message);
+ memset(xfer, 0, sizeof(xfer));
+
+ chip->xfer_buf[0] = cpu_to_be16(AD714x_SPI_CMD_PREFIX |
+ AD714x_SPI_READ | reg);
+ xfer[0].tx_buf = &chip->xfer_buf[0];
+ xfer[0].len = sizeof(chip->xfer_buf[0]);
+ spi_message_add_tail(&xfer[0], &message);
+
+ xfer[1].rx_buf = &chip->xfer_buf[1];
+ xfer[1].len = sizeof(chip->xfer_buf[1]) * len;
+ spi_message_add_tail(&xfer[1], &message);
+
+ error = spi_sync(spi, &message);
+ if (unlikely(error)) {
+ dev_err(chip->dev, "SPI read error: %d\n", error);
+ return error;
+ }
+
+ for (i = 0; i < len; i++)
+ data[i] = be16_to_cpu(chip->xfer_buf[i + 1]);
+
+ return 0;
+}
+
+static int ad714x_spi_write(struct ad714x_chip *chip,
+ unsigned short reg, unsigned short data)
+{
+ struct spi_device *spi = to_spi_device(chip->dev);
+ int error;
+
+ chip->xfer_buf[0] = cpu_to_be16(AD714x_SPI_CMD_PREFIX | reg);
+ chip->xfer_buf[1] = cpu_to_be16(data);
+
+ error = spi_write(spi, (u8 *)chip->xfer_buf,
+ 2 * sizeof(*chip->xfer_buf));
+ if (unlikely(error)) {
+ dev_err(chip->dev, "SPI write error: %d\n", error);
+ return error;
+ }
+
+ return 0;
+}
+
+static int __devinit ad714x_spi_probe(struct spi_device *spi)
+{
+ struct ad714x_chip *chip;
+ int err;
+
+ spi->bits_per_word = 8;
+ err = spi_setup(spi);
+ if (err < 0)
+ return err;
+
+ chip = ad714x_probe(&spi->dev, BUS_SPI, spi->irq,
+ ad714x_spi_read, ad714x_spi_write);
+ if (IS_ERR(chip))
+ return PTR_ERR(chip);
+
+ spi_set_drvdata(spi, chip);
+
+ return 0;
+}
+
+static int __devexit ad714x_spi_remove(struct spi_device *spi)
+{
+ struct ad714x_chip *chip = spi_get_drvdata(spi);
+
+ ad714x_remove(chip);
+ spi_set_drvdata(spi, NULL);
+
+ return 0;
+}
+
+static struct spi_driver ad714x_spi_driver = {
+ .driver = {
+ .name = "ad714x_captouch",
+ .owner = THIS_MODULE,
+ .pm = &ad714x_spi_pm,
+ },
+ .probe = ad714x_spi_probe,
+ .remove = __devexit_p(ad714x_spi_remove),
+};
+
+static __init int ad714x_spi_init(void)
+{
+ return spi_register_driver(&ad714x_spi_driver);
+}
+module_init(ad714x_spi_init);
+
+static __exit void ad714x_spi_exit(void)
+{
+ spi_unregister_driver(&ad714x_spi_driver);
+}
+module_exit(ad714x_spi_exit);
+
+MODULE_DESCRIPTION("Analog Devices AD714X Capacitance Touch Sensor SPI Bus Driver");
+MODULE_AUTHOR("Barry Song <21cnbao@gmail.com>");
+MODULE_LICENSE("GPL");
diff --git a/drivers/input/misc/ad714x.c b/drivers/input/misc/ad714x.c
new file mode 100644
index 0000000..0ac75bb
--- /dev/null
+++ b/drivers/input/misc/ad714x.c
@@ -0,0 +1,1259 @@
+/*
+ * AD714X CapTouch Programmable Controller driver supporting AD7142/3/7/8/7A
+ *
+ * Copyright 2009-2011 Analog Devices Inc.
+ *
+ * Licensed under the GPL-2 or later.
+ */
+
+#include <linux/device.h>
+#include <linux/init.h>
+#include <linux/input.h>
+#include <linux/interrupt.h>
+#include <linux/slab.h>
+#include <linux/input/ad714x.h>
+#include <linux/module.h>
+#include "ad714x.h"
+
+#define AD714X_PWR_CTRL 0x0
+#define AD714X_STG_CAL_EN_REG 0x1
+#define AD714X_AMB_COMP_CTRL0_REG 0x2
+#define AD714X_PARTID_REG 0x17
+#define AD7142_PARTID 0xE620
+#define AD7143_PARTID 0xE630
+#define AD7147_PARTID 0x1470
+#define AD7148_PARTID 0x1480
+#define AD714X_STAGECFG_REG 0x80
+#define AD714X_SYSCFG_REG 0x0
+
+#define STG_LOW_INT_EN_REG 0x5
+#define STG_HIGH_INT_EN_REG 0x6
+#define STG_COM_INT_EN_REG 0x7
+#define STG_LOW_INT_STA_REG 0x8
+#define STG_HIGH_INT_STA_REG 0x9
+#define STG_COM_INT_STA_REG 0xA
+
+#define CDC_RESULT_S0 0xB
+#define CDC_RESULT_S1 0xC
+#define CDC_RESULT_S2 0xD
+#define CDC_RESULT_S3 0xE
+#define CDC_RESULT_S4 0xF
+#define CDC_RESULT_S5 0x10
+#define CDC_RESULT_S6 0x11
+#define CDC_RESULT_S7 0x12
+#define CDC_RESULT_S8 0x13
+#define CDC_RESULT_S9 0x14
+#define CDC_RESULT_S10 0x15
+#define CDC_RESULT_S11 0x16
+
+#define STAGE0_AMBIENT 0xF1
+#define STAGE1_AMBIENT 0x115
+#define STAGE2_AMBIENT 0x139
+#define STAGE3_AMBIENT 0x15D
+#define STAGE4_AMBIENT 0x181
+#define STAGE5_AMBIENT 0x1A5
+#define STAGE6_AMBIENT 0x1C9
+#define STAGE7_AMBIENT 0x1ED
+#define STAGE8_AMBIENT 0x211
+#define STAGE9_AMBIENT 0x234
+#define STAGE10_AMBIENT 0x259
+#define STAGE11_AMBIENT 0x27D
+
+#define PER_STAGE_REG_NUM 36
+#define STAGE_CFGREG_NUM 8
+#define SYS_CFGREG_NUM 8
+
+/*
+ * driver information which will be used to maintain the software flow
+ */
+enum ad714x_device_state { IDLE, JITTER, ACTIVE, SPACE };
+
+struct ad714x_slider_drv {
+ int highest_stage;
+ int abs_pos;
+ int flt_pos;
+ enum ad714x_device_state state;
+ struct input_dev *input;
+};
+
+struct ad714x_wheel_drv {
+ int abs_pos;
+ int flt_pos;
+ int pre_highest_stage;
+ int highest_stage;
+ enum ad714x_device_state state;
+ struct input_dev *input;
+};
+
+struct ad714x_touchpad_drv {
+ int x_highest_stage;
+ int x_flt_pos;
+ int x_abs_pos;
+ int y_highest_stage;
+ int y_flt_pos;
+ int y_abs_pos;
+ int left_ep;
+ int left_ep_val;
+ int right_ep;
+ int right_ep_val;
+ int top_ep;
+ int top_ep_val;
+ int bottom_ep;
+ int bottom_ep_val;
+ enum ad714x_device_state state;
+ struct input_dev *input;
+};
+
+struct ad714x_button_drv {
+ enum ad714x_device_state state;
+ /*
+ * Unlike slider/wheel/touchpad, all buttons point to
+ * same input_dev instance
+ */
+ struct input_dev *input;
+};
+
+struct ad714x_driver_data {
+ struct ad714x_slider_drv *slider;
+ struct ad714x_wheel_drv *wheel;
+ struct ad714x_touchpad_drv *touchpad;
+ struct ad714x_button_drv *button;
+};
+
+/*
+ * information to integrate all things which will be private data
+ * of spi/i2c device
+ */
+
+static void ad714x_use_com_int(struct ad714x_chip *ad714x,
+ int start_stage, int end_stage)
+{
+ unsigned short data;
+ unsigned short mask;
+
+ mask = ((1 << (end_stage + 1)) - 1) - ((1 << start_stage) - 1);
+
+ ad714x->read(ad714x, STG_COM_INT_EN_REG, &data, 1);
+ data |= 1 << end_stage;
+ ad714x->write(ad714x, STG_COM_INT_EN_REG, data);
+
+ ad714x->read(ad714x, STG_HIGH_INT_EN_REG, &data, 1);
+ data &= ~mask;
+ ad714x->write(ad714x, STG_HIGH_INT_EN_REG, data);
+}
+
+static void ad714x_use_thr_int(struct ad714x_chip *ad714x,
+ int start_stage, int end_stage)
+{
+ unsigned short data;
+ unsigned short mask;
+
+ mask = ((1 << (end_stage + 1)) - 1) - ((1 << start_stage) - 1);
+
+ ad714x->read(ad714x, STG_COM_INT_EN_REG, &data, 1);
+ data &= ~(1 << end_stage);
+ ad714x->write(ad714x, STG_COM_INT_EN_REG, data);
+
+ ad714x->read(ad714x, STG_HIGH_INT_EN_REG, &data, 1);
+ data |= mask;
+ ad714x->write(ad714x, STG_HIGH_INT_EN_REG, data);
+}
+
+static int ad714x_cal_highest_stage(struct ad714x_chip *ad714x,
+ int start_stage, int end_stage)
+{
+ int max_res = 0;
+ int max_idx = 0;
+ int i;
+
+ for (i = start_stage; i <= end_stage; i++) {
+ if (ad714x->sensor_val[i] > max_res) {
+ max_res = ad714x->sensor_val[i];
+ max_idx = i;
+ }
+ }
+
+ return max_idx;
+}
+
+static int ad714x_cal_abs_pos(struct ad714x_chip *ad714x,
+ int start_stage, int end_stage,
+ int highest_stage, int max_coord)
+{
+ int a_param, b_param;
+
+ if (highest_stage == start_stage) {
+ a_param = ad714x->sensor_val[start_stage + 1];
+ b_param = ad714x->sensor_val[start_stage] +
+ ad714x->sensor_val[start_stage + 1];
+ } else if (highest_stage == end_stage) {
+ a_param = ad714x->sensor_val[end_stage] *
+ (end_stage - start_stage) +
+ ad714x->sensor_val[end_stage - 1] *
+ (end_stage - start_stage - 1);
+ b_param = ad714x->sensor_val[end_stage] +
+ ad714x->sensor_val[end_stage - 1];
+ } else {
+ a_param = ad714x->sensor_val[highest_stage] *
+ (highest_stage - start_stage) +
+ ad714x->sensor_val[highest_stage - 1] *
+ (highest_stage - start_stage - 1) +
+ ad714x->sensor_val[highest_stage + 1] *
+ (highest_stage - start_stage + 1);
+ b_param = ad714x->sensor_val[highest_stage] +
+ ad714x->sensor_val[highest_stage - 1] +
+ ad714x->sensor_val[highest_stage + 1];
+ }
+
+ return (max_coord / (end_stage - start_stage)) * a_param / b_param;
+}
+
+/*
+ * One button can connect to multi positive and negative of CDCs
+ * Multi-buttons can connect to same positive/negative of one CDC
+ */
+static void ad714x_button_state_machine(struct ad714x_chip *ad714x, int idx)
+{
+ struct ad714x_button_plat *hw = &ad714x->hw->button[idx];
+ struct ad714x_button_drv *sw = &ad714x->sw->button[idx];
+
+ switch (sw->state) {
+ case IDLE:
+ if (((ad714x->h_state & hw->h_mask) == hw->h_mask) &&
+ ((ad714x->l_state & hw->l_mask) == hw->l_mask)) {
+ dev_dbg(ad714x->dev, "button %d touched\n", idx);
+ input_report_key(sw->input, hw->keycode, 1);
+ input_sync(sw->input);
+ sw->state = ACTIVE;
+ }
+ break;
+
+ case ACTIVE:
+ if (((ad714x->h_state & hw->h_mask) != hw->h_mask) ||
+ ((ad714x->l_state & hw->l_mask) != hw->l_mask)) {
+ dev_dbg(ad714x->dev, "button %d released\n", idx);
+ input_report_key(sw->input, hw->keycode, 0);
+ input_sync(sw->input);
+ sw->state = IDLE;
+ }
+ break;
+
+ default:
+ break;
+ }
+}
+
+/*
+ * The response of a sensor is defined by the absolute number of codes
+ * between the current CDC value and the ambient value.
+ */
+static void ad714x_slider_cal_sensor_val(struct ad714x_chip *ad714x, int idx)
+{
+ struct ad714x_slider_plat *hw = &ad714x->hw->slider[idx];
+ int i;
+
+ ad714x->read(ad714x, CDC_RESULT_S0 + hw->start_stage,
+ &ad714x->adc_reg[hw->start_stage],
+ hw->end_stage - hw->start_stage + 1);
+
+ for (i = hw->start_stage; i <= hw->end_stage; i++) {
+ ad714x->read(ad714x, STAGE0_AMBIENT + i * PER_STAGE_REG_NUM,
+ &ad714x->amb_reg[i], 1);
+
+ ad714x->sensor_val[i] =
+ abs(ad714x->adc_reg[i] - ad714x->amb_reg[i]);
+ }
+}
+
+static void ad714x_slider_cal_highest_stage(struct ad714x_chip *ad714x, int idx)
+{
+ struct ad714x_slider_plat *hw = &ad714x->hw->slider[idx];
+ struct ad714x_slider_drv *sw = &ad714x->sw->slider[idx];
+
+ sw->highest_stage = ad714x_cal_highest_stage(ad714x, hw->start_stage,
+ hw->end_stage);
+
+ dev_dbg(ad714x->dev, "slider %d highest_stage:%d\n", idx,
+ sw->highest_stage);
+}
+
+/*
+ * The formulae are very straight forward. It uses the sensor with the
+ * highest response and the 2 adjacent ones.
+ * When Sensor 0 has the highest response, only sensor 0 and sensor 1
+ * are used in the calculations. Similarly when the last sensor has the
+ * highest response, only the last sensor and the second last sensors
+ * are used in the calculations.
+ *
+ * For i= idx_of_peak_Sensor-1 to i= idx_of_peak_Sensor+1
+ * v += Sensor response(i)*i
+ * w += Sensor response(i)
+ * POS=(Number_of_Positions_Wanted/(Number_of_Sensors_Used-1)) *(v/w)
+ */
+static void ad714x_slider_cal_abs_pos(struct ad714x_chip *ad714x, int idx)
+{
+ struct ad714x_slider_plat *hw = &ad714x->hw->slider[idx];
+ struct ad714x_slider_drv *sw = &ad714x->sw->slider[idx];
+
+ sw->abs_pos = ad714x_cal_abs_pos(ad714x, hw->start_stage, hw->end_stage,
+ sw->highest_stage, hw->max_coord);
+
+ dev_dbg(ad714x->dev, "slider %d absolute position:%d\n", idx,
+ sw->abs_pos);
+}
+
+/*
+ * To minimise the Impact of the noise on the algorithm, ADI developed a
+ * routine that filters the CDC results after they have been read by the
+ * host processor.
+ * The filter used is an Infinite Input Response(IIR) filter implemented
+ * in firmware and attenuates the noise on the CDC results after they've
+ * been read by the host processor.
+ * Filtered_CDC_result = (Filtered_CDC_result * (10 - Coefficient) +
+ * Latest_CDC_result * Coefficient)/10
+ */
+static void ad714x_slider_cal_flt_pos(struct ad714x_chip *ad714x, int idx)
+{
+ struct ad714x_slider_drv *sw = &ad714x->sw->slider[idx];
+
+ sw->flt_pos = (sw->flt_pos * (10 - 4) +
+ sw->abs_pos * 4)/10;
+
+ dev_dbg(ad714x->dev, "slider %d filter position:%d\n", idx,
+ sw->flt_pos);
+}
+
+static void ad714x_slider_use_com_int(struct ad714x_chip *ad714x, int idx)
+{
+ struct ad714x_slider_plat *hw = &ad714x->hw->slider[idx];
+
+ ad714x_use_com_int(ad714x, hw->start_stage, hw->end_stage);
+}
+
+static void ad714x_slider_use_thr_int(struct ad714x_chip *ad714x, int idx)
+{
+ struct ad714x_slider_plat *hw = &ad714x->hw->slider[idx];
+
+ ad714x_use_thr_int(ad714x, hw->start_stage, hw->end_stage);
+}
+
+static void ad714x_slider_state_machine(struct ad714x_chip *ad714x, int idx)
+{
+ struct ad714x_slider_plat *hw = &ad714x->hw->slider[idx];
+ struct ad714x_slider_drv *sw = &ad714x->sw->slider[idx];
+ unsigned short h_state, c_state;
+ unsigned short mask;
+
+ mask = ((1 << (hw->end_stage + 1)) - 1) - ((1 << hw->start_stage) - 1);
+
+ h_state = ad714x->h_state & mask;
+ c_state = ad714x->c_state & mask;
+
+ switch (sw->state) {
+ case IDLE:
+ if (h_state) {
+ sw->state = JITTER;
+ /* In End of Conversion interrupt mode, the AD714X
+ * continuously generates hardware interrupts.
+ */
+ ad714x_slider_use_com_int(ad714x, idx);
+ dev_dbg(ad714x->dev, "slider %d touched\n", idx);
+ }
+ break;
+
+ case JITTER:
+ if (c_state == mask) {
+ ad714x_slider_cal_sensor_val(ad714x, idx);
+ ad714x_slider_cal_highest_stage(ad714x, idx);
+ ad714x_slider_cal_abs_pos(ad714x, idx);
+ sw->flt_pos = sw->abs_pos;
+ sw->state = ACTIVE;
+ }
+ break;
+
+ case ACTIVE:
+ if (c_state == mask) {
+ if (h_state) {
+ ad714x_slider_cal_sensor_val(ad714x, idx);
+ ad714x_slider_cal_highest_stage(ad714x, idx);
+ ad714x_slider_cal_abs_pos(ad714x, idx);
+ ad714x_slider_cal_flt_pos(ad714x, idx);
+ input_report_abs(sw->input, ABS_X, sw->flt_pos);
+ input_report_key(sw->input, BTN_TOUCH, 1);
+ } else {
+ /* When the user lifts off the sensor, configure
+ * the AD714X back to threshold interrupt mode.
+ */
+ ad714x_slider_use_thr_int(ad714x, idx);
+ sw->state = IDLE;
+ input_report_key(sw->input, BTN_TOUCH, 0);
+ dev_dbg(ad714x->dev, "slider %d released\n",
+ idx);
+ }
+ input_sync(sw->input);
+ }
+ break;
+
+ default:
+ break;
+ }
+}
+
+/*
+ * When the scroll wheel is activated, we compute the absolute position based
+ * on the sensor values. To calculate the position, we first determine the
+ * sensor that has the greatest response among the 8 sensors that constitutes
+ * the scrollwheel. Then we determined the 2 sensors on either sides of the
+ * sensor with the highest response and we apply weights to these sensors.
+ */
+static void ad714x_wheel_cal_highest_stage(struct ad714x_chip *ad714x, int idx)
+{
+ struct ad714x_wheel_plat *hw = &ad714x->hw->wheel[idx];
+ struct ad714x_wheel_drv *sw = &ad714x->sw->wheel[idx];
+
+ sw->pre_highest_stage = sw->highest_stage;
+ sw->highest_stage = ad714x_cal_highest_stage(ad714x, hw->start_stage,
+ hw->end_stage);
+
+ dev_dbg(ad714x->dev, "wheel %d highest_stage:%d\n", idx,
+ sw->highest_stage);
+}
+
+static void ad714x_wheel_cal_sensor_val(struct ad714x_chip *ad714x, int idx)
+{
+ struct ad714x_wheel_plat *hw = &ad714x->hw->wheel[idx];
+ int i;
+
+ ad714x->read(ad714x, CDC_RESULT_S0 + hw->start_stage,
+ &ad714x->adc_reg[hw->start_stage],
+ hw->end_stage - hw->start_stage + 1);
+
+ for (i = hw->start_stage; i <= hw->end_stage; i++) {
+ ad714x->read(ad714x, STAGE0_AMBIENT + i * PER_STAGE_REG_NUM,
+ &ad714x->amb_reg[i], 1);
+ if (ad714x->adc_reg[i] > ad714x->amb_reg[i])
+ ad714x->sensor_val[i] =
+ ad714x->adc_reg[i] - ad714x->amb_reg[i];
+ else
+ ad714x->sensor_val[i] = 0;
+ }
+}
+
+/*
+ * When the scroll wheel is activated, we compute the absolute position based
+ * on the sensor values. To calculate the position, we first determine the
+ * sensor that has the greatest response among the sensors that constitutes
+ * the scrollwheel. Then we determined the sensors on either sides of the
+ * sensor with the highest response and we apply weights to these sensors. The
+ * result of this computation gives us the mean value.
+ */
+
+static void ad714x_wheel_cal_abs_pos(struct ad714x_chip *ad714x, int idx)
+{
+ struct ad714x_wheel_plat *hw = &ad714x->hw->wheel[idx];
+ struct ad714x_wheel_drv *sw = &ad714x->sw->wheel[idx];
+ int stage_num = hw->end_stage - hw->start_stage + 1;
+ int first_before, highest, first_after;
+ int a_param, b_param;
+
+ first_before = (sw->highest_stage + stage_num - 1) % stage_num;
+ highest = sw->highest_stage;
+ first_after = (sw->highest_stage + stage_num + 1) % stage_num;
+
+ a_param = ad714x->sensor_val[highest] *
+ (highest - hw->start_stage) +
+ ad714x->sensor_val[first_before] *
+ (highest - hw->start_stage - 1) +
+ ad714x->sensor_val[first_after] *
+ (highest - hw->start_stage + 1);
+ b_param = ad714x->sensor_val[highest] +
+ ad714x->sensor_val[first_before] +
+ ad714x->sensor_val[first_after];
+
+ sw->abs_pos = ((hw->max_coord / (hw->end_stage - hw->start_stage)) *
+ a_param) / b_param;
+
+ if (sw->abs_pos > hw->max_coord)
+ sw->abs_pos = hw->max_coord;
+ else if (sw->abs_pos < 0)
+ sw->abs_pos = 0;
+}
+
+static void ad714x_wheel_cal_flt_pos(struct ad714x_chip *ad714x, int idx)
+{
+ struct ad714x_wheel_plat *hw = &ad714x->hw->wheel[idx];
+ struct ad714x_wheel_drv *sw = &ad714x->sw->wheel[idx];
+ if (((sw->pre_highest_stage == hw->end_stage) &&
+ (sw->highest_stage == hw->start_stage)) ||
+ ((sw->pre_highest_stage == hw->start_stage) &&
+ (sw->highest_stage == hw->end_stage)))
+ sw->flt_pos = sw->abs_pos;
+ else
+ sw->flt_pos = ((sw->flt_pos * 30) + (sw->abs_pos * 71)) / 100;
+
+ if (sw->flt_pos > hw->max_coord)
+ sw->flt_pos = hw->max_coord;
+}
+
+static void ad714x_wheel_use_com_int(struct ad714x_chip *ad714x, int idx)
+{
+ struct ad714x_wheel_plat *hw = &ad714x->hw->wheel[idx];
+
+ ad714x_use_com_int(ad714x, hw->start_stage, hw->end_stage);
+}
+
+static void ad714x_wheel_use_thr_int(struct ad714x_chip *ad714x, int idx)
+{
+ struct ad714x_wheel_plat *hw = &ad714x->hw->wheel[idx];
+
+ ad714x_use_thr_int(ad714x, hw->start_stage, hw->end_stage);
+}
+
+static void ad714x_wheel_state_machine(struct ad714x_chip *ad714x, int idx)
+{
+ struct ad714x_wheel_plat *hw = &ad714x->hw->wheel[idx];
+ struct ad714x_wheel_drv *sw = &ad714x->sw->wheel[idx];
+ unsigned short h_state, c_state;
+ unsigned short mask;
+
+ mask = ((1 << (hw->end_stage + 1)) - 1) - ((1 << hw->start_stage) - 1);
+
+ h_state = ad714x->h_state & mask;
+ c_state = ad714x->c_state & mask;
+
+ switch (sw->state) {
+ case IDLE:
+ if (h_state) {
+ sw->state = JITTER;
+ /* In End of Conversion interrupt mode, the AD714X
+ * continuously generates hardware interrupts.
+ */
+ ad714x_wheel_use_com_int(ad714x, idx);
+ dev_dbg(ad714x->dev, "wheel %d touched\n", idx);
+ }
+ break;
+
+ case JITTER:
+ if (c_state == mask) {
+ ad714x_wheel_cal_sensor_val(ad714x, idx);
+ ad714x_wheel_cal_highest_stage(ad714x, idx);
+ ad714x_wheel_cal_abs_pos(ad714x, idx);
+ sw->flt_pos = sw->abs_pos;
+ sw->state = ACTIVE;
+ }
+ break;
+
+ case ACTIVE:
+ if (c_state == mask) {
+ if (h_state) {
+ ad714x_wheel_cal_sensor_val(ad714x, idx);
+ ad714x_wheel_cal_highest_stage(ad714x, idx);
+ ad714x_wheel_cal_abs_pos(ad714x, idx);
+ ad714x_wheel_cal_flt_pos(ad714x, idx);
+ input_report_abs(sw->input, ABS_WHEEL,
+ sw->flt_pos);
+ input_report_key(sw->input, BTN_TOUCH, 1);
+ } else {
+ /* When the user lifts off the sensor, configure
+ * the AD714X back to threshold interrupt mode.
+ */
+ ad714x_wheel_use_thr_int(ad714x, idx);
+ sw->state = IDLE;
+ input_report_key(sw->input, BTN_TOUCH, 0);
+
+ dev_dbg(ad714x->dev, "wheel %d released\n",
+ idx);
+ }
+ input_sync(sw->input);
+ }
+ break;
+
+ default:
+ break;
+ }
+}
+
+static void touchpad_cal_sensor_val(struct ad714x_chip *ad714x, int idx)
+{
+ struct ad714x_touchpad_plat *hw = &ad714x->hw->touchpad[idx];
+ int i;
+
+ ad714x->read(ad714x, CDC_RESULT_S0 + hw->x_start_stage,
+ &ad714x->adc_reg[hw->x_start_stage],
+ hw->x_end_stage - hw->x_start_stage + 1);
+
+ for (i = hw->x_start_stage; i <= hw->x_end_stage; i++) {
+ ad714x->read(ad714x, STAGE0_AMBIENT + i * PER_STAGE_REG_NUM,
+ &ad714x->amb_reg[i], 1);
+ if (ad714x->adc_reg[i] > ad714x->amb_reg[i])
+ ad714x->sensor_val[i] =
+ ad714x->adc_reg[i] - ad714x->amb_reg[i];
+ else
+ ad714x->sensor_val[i] = 0;
+ }
+}
+
+static void touchpad_cal_highest_stage(struct ad714x_chip *ad714x, int idx)
+{
+ struct ad714x_touchpad_plat *hw = &ad714x->hw->touchpad[idx];
+ struct ad714x_touchpad_drv *sw = &ad714x->sw->touchpad[idx];
+
+ sw->x_highest_stage = ad714x_cal_highest_stage(ad714x,
+ hw->x_start_stage, hw->x_end_stage);
+ sw->y_highest_stage = ad714x_cal_highest_stage(ad714x,
+ hw->y_start_stage, hw->y_end_stage);
+
+ dev_dbg(ad714x->dev,
+ "touchpad %d x_highest_stage:%d, y_highest_stage:%d\n",
+ idx, sw->x_highest_stage, sw->y_highest_stage);
+}
+
+/*
+ * If 2 fingers are touching the sensor then 2 peaks can be observed in the
+ * distribution.
+ * The arithmetic doesn't support to get absolute coordinates for multi-touch
+ * yet.
+ */
+static int touchpad_check_second_peak(struct ad714x_chip *ad714x, int idx)
+{
+ struct ad714x_touchpad_plat *hw = &ad714x->hw->touchpad[idx];
+ struct ad714x_touchpad_drv *sw = &ad714x->sw->touchpad[idx];
+ int i;
+
+ for (i = hw->x_start_stage; i < sw->x_highest_stage; i++) {
+ if ((ad714x->sensor_val[i] - ad714x->sensor_val[i + 1])
+ > (ad714x->sensor_val[i + 1] / 10))
+ return 1;
+ }
+
+ for (i = sw->x_highest_stage; i < hw->x_end_stage; i++) {
+ if ((ad714x->sensor_val[i + 1] - ad714x->sensor_val[i])
+ > (ad714x->sensor_val[i] / 10))
+ return 1;
+ }
+
+ for (i = hw->y_start_stage; i < sw->y_highest_stage; i++) {
+ if ((ad714x->sensor_val[i] - ad714x->sensor_val[i + 1])
+ > (ad714x->sensor_val[i + 1] / 10))
+ return 1;
+ }
+
+ for (i = sw->y_highest_stage; i < hw->y_end_stage; i++) {
+ if ((ad714x->sensor_val[i + 1] - ad714x->sensor_val[i])
+ > (ad714x->sensor_val[i] / 10))
+ return 1;
+ }
+
+ return 0;
+}
+
+/*
+ * If only one finger is used to activate the touch pad then only 1 peak will be
+ * registered in the distribution. This peak and the 2 adjacent sensors will be
+ * used in the calculation of the absolute position. This will prevent hand
+ * shadows to affect the absolute position calculation.
+ */
+static void touchpad_cal_abs_pos(struct ad714x_chip *ad714x, int idx)
+{
+ struct ad714x_touchpad_plat *hw = &ad714x->hw->touchpad[idx];
+ struct ad714x_touchpad_drv *sw = &ad714x->sw->touchpad[idx];
+
+ sw->x_abs_pos = ad714x_cal_abs_pos(ad714x, hw->x_start_stage,
+ hw->x_end_stage, sw->x_highest_stage, hw->x_max_coord);
+ sw->y_abs_pos = ad714x_cal_abs_pos(ad714x, hw->y_start_stage,
+ hw->y_end_stage, sw->y_highest_stage, hw->y_max_coord);
+
+ dev_dbg(ad714x->dev, "touchpad %d absolute position:(%d, %d)\n", idx,
+ sw->x_abs_pos, sw->y_abs_pos);
+}
+
+static void touchpad_cal_flt_pos(struct ad714x_chip *ad714x, int idx)
+{
+ struct ad714x_touchpad_drv *sw = &ad714x->sw->touchpad[idx];
+
+ sw->x_flt_pos = (sw->x_flt_pos * (10 - 4) +
+ sw->x_abs_pos * 4)/10;
+ sw->y_flt_pos = (sw->y_flt_pos * (10 - 4) +
+ sw->y_abs_pos * 4)/10;
+
+ dev_dbg(ad714x->dev, "touchpad %d filter position:(%d, %d)\n",
+ idx, sw->x_flt_pos, sw->y_flt_pos);
+}
+
+/*
+ * To prevent distortion from showing in the absolute position, it is
+ * necessary to detect the end points. When endpoints are detected, the
+ * driver stops updating the status variables with absolute positions.
+ * End points are detected on the 4 edges of the touchpad sensor. The
+ * method to detect them is the same for all 4.
+ * To detect the end points, the firmware computes the difference in
+ * percent between the sensor on the edge and the adjacent one. The
+ * difference is calculated in percent in order to make the end point
+ * detection independent of the pressure.
+ */
+
+#define LEFT_END_POINT_DETECTION_LEVEL 550
+#define RIGHT_END_POINT_DETECTION_LEVEL 750
+#define LEFT_RIGHT_END_POINT_DEAVTIVALION_LEVEL 850
+#define TOP_END_POINT_DETECTION_LEVEL 550
+#define BOTTOM_END_POINT_DETECTION_LEVEL 950
+#define TOP_BOTTOM_END_POINT_DEAVTIVALION_LEVEL 700
+static int touchpad_check_endpoint(struct ad714x_chip *ad714x, int idx)
+{
+ struct ad714x_touchpad_plat *hw = &ad714x->hw->touchpad[idx];
+ struct ad714x_touchpad_drv *sw = &ad714x->sw->touchpad[idx];
+ int percent_sensor_diff;
+
+ /* left endpoint detect */
+ percent_sensor_diff = (ad714x->sensor_val[hw->x_start_stage] -
+ ad714x->sensor_val[hw->x_start_stage + 1]) * 100 /
+ ad714x->sensor_val[hw->x_start_stage + 1];
+ if (!sw->left_ep) {
+ if (percent_sensor_diff >= LEFT_END_POINT_DETECTION_LEVEL) {
+ sw->left_ep = 1;
+ sw->left_ep_val =
+ ad714x->sensor_val[hw->x_start_stage + 1];
+ }
+ } else {
+ if ((percent_sensor_diff < LEFT_END_POINT_DETECTION_LEVEL) &&
+ (ad714x->sensor_val[hw->x_start_stage + 1] >
+ LEFT_RIGHT_END_POINT_DEAVTIVALION_LEVEL + sw->left_ep_val))
+ sw->left_ep = 0;
+ }
+
+ /* right endpoint detect */
+ percent_sensor_diff = (ad714x->sensor_val[hw->x_end_stage] -
+ ad714x->sensor_val[hw->x_end_stage - 1]) * 100 /
+ ad714x->sensor_val[hw->x_end_stage - 1];
+ if (!sw->right_ep) {
+ if (percent_sensor_diff >= RIGHT_END_POINT_DETECTION_LEVEL) {
+ sw->right_ep = 1;
+ sw->right_ep_val =
+ ad714x->sensor_val[hw->x_end_stage - 1];
+ }
+ } else {
+ if ((percent_sensor_diff < RIGHT_END_POINT_DETECTION_LEVEL) &&
+ (ad714x->sensor_val[hw->x_end_stage - 1] >
+ LEFT_RIGHT_END_POINT_DEAVTIVALION_LEVEL + sw->right_ep_val))
+ sw->right_ep = 0;
+ }
+
+ /* top endpoint detect */
+ percent_sensor_diff = (ad714x->sensor_val[hw->y_start_stage] -
+ ad714x->sensor_val[hw->y_start_stage + 1]) * 100 /
+ ad714x->sensor_val[hw->y_start_stage + 1];
+ if (!sw->top_ep) {
+ if (percent_sensor_diff >= TOP_END_POINT_DETECTION_LEVEL) {
+ sw->top_ep = 1;
+ sw->top_ep_val =
+ ad714x->sensor_val[hw->y_start_stage + 1];
+ }
+ } else {
+ if ((percent_sensor_diff < TOP_END_POINT_DETECTION_LEVEL) &&
+ (ad714x->sensor_val[hw->y_start_stage + 1] >
+ TOP_BOTTOM_END_POINT_DEAVTIVALION_LEVEL + sw->top_ep_val))
+ sw->top_ep = 0;
+ }
+
+ /* bottom endpoint detect */
+ percent_sensor_diff = (ad714x->sensor_val[hw->y_end_stage] -
+ ad714x->sensor_val[hw->y_end_stage - 1]) * 100 /
+ ad714x->sensor_val[hw->y_end_stage - 1];
+ if (!sw->bottom_ep) {
+ if (percent_sensor_diff >= BOTTOM_END_POINT_DETECTION_LEVEL) {
+ sw->bottom_ep = 1;
+ sw->bottom_ep_val =
+ ad714x->sensor_val[hw->y_end_stage - 1];
+ }
+ } else {
+ if ((percent_sensor_diff < BOTTOM_END_POINT_DETECTION_LEVEL) &&
+ (ad714x->sensor_val[hw->y_end_stage - 1] >
+ TOP_BOTTOM_END_POINT_DEAVTIVALION_LEVEL + sw->bottom_ep_val))
+ sw->bottom_ep = 0;
+ }
+
+ return sw->left_ep || sw->right_ep || sw->top_ep || sw->bottom_ep;
+}
+
+static void touchpad_use_com_int(struct ad714x_chip *ad714x, int idx)
+{
+ struct ad714x_touchpad_plat *hw = &ad714x->hw->touchpad[idx];
+
+ ad714x_use_com_int(ad714x, hw->x_start_stage, hw->x_end_stage);
+}
+
+static void touchpad_use_thr_int(struct ad714x_chip *ad714x, int idx)
+{
+ struct ad714x_touchpad_plat *hw = &ad714x->hw->touchpad[idx];
+
+ ad714x_use_thr_int(ad714x, hw->x_start_stage, hw->x_end_stage);
+ ad714x_use_thr_int(ad714x, hw->y_start_stage, hw->y_end_stage);
+}
+
+static void ad714x_touchpad_state_machine(struct ad714x_chip *ad714x, int idx)
+{
+ struct ad714x_touchpad_plat *hw = &ad714x->hw->touchpad[idx];
+ struct ad714x_touchpad_drv *sw = &ad714x->sw->touchpad[idx];
+ unsigned short h_state, c_state;
+ unsigned short mask;
+
+ mask = (((1 << (hw->x_end_stage + 1)) - 1) -
+ ((1 << hw->x_start_stage) - 1)) +
+ (((1 << (hw->y_end_stage + 1)) - 1) -
+ ((1 << hw->y_start_stage) - 1));
+
+ h_state = ad714x->h_state & mask;
+ c_state = ad714x->c_state & mask;
+
+ switch (sw->state) {
+ case IDLE:
+ if (h_state) {
+ sw->state = JITTER;
+ /* In End of Conversion interrupt mode, the AD714X
+ * continuously generates hardware interrupts.
+ */
+ touchpad_use_com_int(ad714x, idx);
+ dev_dbg(ad714x->dev, "touchpad %d touched\n", idx);
+ }
+ break;
+
+ case JITTER:
+ if (c_state == mask) {
+ touchpad_cal_sensor_val(ad714x, idx);
+ touchpad_cal_highest_stage(ad714x, idx);
+ if ((!touchpad_check_second_peak(ad714x, idx)) &&
+ (!touchpad_check_endpoint(ad714x, idx))) {
+ dev_dbg(ad714x->dev,
+ "touchpad%d, 2 fingers or endpoint\n",
+ idx);
+ touchpad_cal_abs_pos(ad714x, idx);
+ sw->x_flt_pos = sw->x_abs_pos;
+ sw->y_flt_pos = sw->y_abs_pos;
+ sw->state = ACTIVE;
+ }
+ }
+ break;
+
+ case ACTIVE:
+ if (c_state == mask) {
+ if (h_state) {
+ touchpad_cal_sensor_val(ad714x, idx);
+ touchpad_cal_highest_stage(ad714x, idx);
+ if ((!touchpad_check_second_peak(ad714x, idx))
+ && (!touchpad_check_endpoint(ad714x, idx))) {
+ touchpad_cal_abs_pos(ad714x, idx);
+ touchpad_cal_flt_pos(ad714x, idx);
+ input_report_abs(sw->input, ABS_X,
+ sw->x_flt_pos);
+ input_report_abs(sw->input, ABS_Y,
+ sw->y_flt_pos);
+ input_report_key(sw->input, BTN_TOUCH,
+ 1);
+ }
+ } else {
+ /* When the user lifts off the sensor, configure
+ * the AD714X back to threshold interrupt mode.
+ */
+ touchpad_use_thr_int(ad714x, idx);
+ sw->state = IDLE;
+ input_report_key(sw->input, BTN_TOUCH, 0);
+ dev_dbg(ad714x->dev, "touchpad %d released\n",
+ idx);
+ }
+ input_sync(sw->input);
+ }
+ break;
+
+ default:
+ break;
+ }
+}
+
+static int ad714x_hw_detect(struct ad714x_chip *ad714x)
+{
+ unsigned short data;
+
+ ad714x->read(ad714x, AD714X_PARTID_REG, &data, 1);
+ switch (data & 0xFFF0) {
+ case AD7142_PARTID:
+ ad714x->product = 0x7142;
+ ad714x->version = data & 0xF;
+ dev_info(ad714x->dev, "found AD7142 captouch, rev:%d\n",
+ ad714x->version);
+ return 0;
+
+ case AD7143_PARTID:
+ ad714x->product = 0x7143;
+ ad714x->version = data & 0xF;
+ dev_info(ad714x->dev, "found AD7143 captouch, rev:%d\n",
+ ad714x->version);
+ return 0;
+
+ case AD7147_PARTID:
+ ad714x->product = 0x7147;
+ ad714x->version = data & 0xF;
+ dev_info(ad714x->dev, "found AD7147(A) captouch, rev:%d\n",
+ ad714x->version);
+ return 0;
+
+ case AD7148_PARTID:
+ ad714x->product = 0x7148;
+ ad714x->version = data & 0xF;
+ dev_info(ad714x->dev, "found AD7148 captouch, rev:%d\n",
+ ad714x->version);
+ return 0;
+
+ default:
+ dev_err(ad714x->dev,
+ "fail to detect AD714X captouch, read ID is %04x\n",
+ data);
+ return -ENODEV;
+ }
+}
+
+static void ad714x_hw_init(struct ad714x_chip *ad714x)
+{
+ int i, j;
+ unsigned short reg_base;
+ unsigned short data;
+
+ /* configuration CDC and interrupts */
+
+ for (i = 0; i < STAGE_NUM; i++) {
+ reg_base = AD714X_STAGECFG_REG + i * STAGE_CFGREG_NUM;
+ for (j = 0; j < STAGE_CFGREG_NUM; j++)
+ ad714x->write(ad714x, reg_base + j,
+ ad714x->hw->stage_cfg_reg[i][j]);
+ }
+
+ for (i = 0; i < SYS_CFGREG_NUM; i++)
+ ad714x->write(ad714x, AD714X_SYSCFG_REG + i,
+ ad714x->hw->sys_cfg_reg[i]);
+ for (i = 0; i < SYS_CFGREG_NUM; i++)
+ ad714x->read(ad714x, AD714X_SYSCFG_REG + i, &data, 1);
+
+ ad714x->write(ad714x, AD714X_STG_CAL_EN_REG, 0xFFF);
+
+ /* clear all interrupts */
+ ad714x->read(ad714x, STG_LOW_INT_STA_REG, &ad714x->l_state, 3);
+}
+
+static irqreturn_t ad714x_interrupt_thread(int irq, void *data)
+{
+ struct ad714x_chip *ad714x = data;
+ int i;
+
+ mutex_lock(&ad714x->mutex);
+
+ ad714x->read(ad714x, STG_LOW_INT_STA_REG, &ad714x->l_state, 3);
+
+ for (i = 0; i < ad714x->hw->button_num; i++)
+ ad714x_button_state_machine(ad714x, i);
+ for (i = 0; i < ad714x->hw->slider_num; i++)
+ ad714x_slider_state_machine(ad714x, i);
+ for (i = 0; i < ad714x->hw->wheel_num; i++)
+ ad714x_wheel_state_machine(ad714x, i);
+ for (i = 0; i < ad714x->hw->touchpad_num; i++)
+ ad714x_touchpad_state_machine(ad714x, i);
+
+ mutex_unlock(&ad714x->mutex);
+
+ return IRQ_HANDLED;
+}
+
+#define MAX_DEVICE_NUM 8
+struct ad714x_chip *ad714x_probe(struct device *dev, u16 bus_type, int irq,
+ ad714x_read_t read, ad714x_write_t write)
+{
+ int i, alloc_idx;
+ int error;
+ struct input_dev *input[MAX_DEVICE_NUM];
+
+ struct ad714x_platform_data *plat_data = dev->platform_data;
+ struct ad714x_chip *ad714x;
+ void *drv_mem;
+
+ struct ad714x_button_drv *bt_drv;
+ struct ad714x_slider_drv *sd_drv;
+ struct ad714x_wheel_drv *wl_drv;
+ struct ad714x_touchpad_drv *tp_drv;
+
+
+ if (irq <= 0) {
+ dev_err(dev, "IRQ not configured!\n");
+ error = -EINVAL;
+ goto err_out;
+ }
+
+ if (dev->platform_data == NULL) {
+ dev_err(dev, "platform data for ad714x doesn't exist\n");
+ error = -EINVAL;
+ goto err_out;
+ }
+
+ ad714x = kzalloc(sizeof(*ad714x) + sizeof(*ad714x->sw) +
+ sizeof(*sd_drv) * plat_data->slider_num +
+ sizeof(*wl_drv) * plat_data->wheel_num +
+ sizeof(*tp_drv) * plat_data->touchpad_num +
+ sizeof(*bt_drv) * plat_data->button_num, GFP_KERNEL);
+ if (!ad714x) {
+ error = -ENOMEM;
+ goto err_out;
+ }
+
+ ad714x->hw = plat_data;
+
+ drv_mem = ad714x + 1;
+ ad714x->sw = drv_mem;
+ drv_mem += sizeof(*ad714x->sw);
+ ad714x->sw->slider = sd_drv = drv_mem;
+ drv_mem += sizeof(*sd_drv) * ad714x->hw->slider_num;
+ ad714x->sw->wheel = wl_drv = drv_mem;
+ drv_mem += sizeof(*wl_drv) * ad714x->hw->wheel_num;
+ ad714x->sw->touchpad = tp_drv = drv_mem;
+ drv_mem += sizeof(*tp_drv) * ad714x->hw->touchpad_num;
+ ad714x->sw->button = bt_drv = drv_mem;
+ drv_mem += sizeof(*bt_drv) * ad714x->hw->button_num;
+
+ ad714x->read = read;
+ ad714x->write = write;
+ ad714x->irq = irq;
+ ad714x->dev = dev;
+
+ error = ad714x_hw_detect(ad714x);
+ if (error)
+ goto err_free_mem;
+
+ /* initialize and request sw/hw resources */
+
+ ad714x_hw_init(ad714x);
+ mutex_init(&ad714x->mutex);
+
+ /*
+ * Allocate and register AD714X input device
+ */
+ alloc_idx = 0;
+
+ /* a slider uses one input_dev instance */
+ if (ad714x->hw->slider_num > 0) {
+ struct ad714x_slider_plat *sd_plat = ad714x->hw->slider;
+
+ for (i = 0; i < ad714x->hw->slider_num; i++) {
+ sd_drv[i].input = input[alloc_idx] = input_allocate_device();
+ if (!input[alloc_idx]) {
+ error = -ENOMEM;
+ goto err_free_dev;
+ }
+
+ __set_bit(EV_ABS, input[alloc_idx]->evbit);
+ __set_bit(EV_KEY, input[alloc_idx]->evbit);
+ __set_bit(ABS_X, input[alloc_idx]->absbit);
+ __set_bit(BTN_TOUCH, input[alloc_idx]->keybit);
+ input_set_abs_params(input[alloc_idx],
+ ABS_X, 0, sd_plat->max_coord, 0, 0);
+
+ input[alloc_idx]->id.bustype = bus_type;
+ input[alloc_idx]->id.product = ad714x->product;
+ input[alloc_idx]->id.version = ad714x->version;
+ input[alloc_idx]->name = "ad714x_captouch_slider";
+ input[alloc_idx]->dev.parent = dev;
+
+ error = input_register_device(input[alloc_idx]);
+ if (error)
+ goto err_free_dev;
+
+ alloc_idx++;
+ }
+ }
+
+ /* a wheel uses one input_dev instance */
+ if (ad714x->hw->wheel_num > 0) {
+ struct ad714x_wheel_plat *wl_plat = ad714x->hw->wheel;
+
+ for (i = 0; i < ad714x->hw->wheel_num; i++) {
+ wl_drv[i].input = input[alloc_idx] = input_allocate_device();
+ if (!input[alloc_idx]) {
+ error = -ENOMEM;
+ goto err_free_dev;
+ }
+
+ __set_bit(EV_KEY, input[alloc_idx]->evbit);
+ __set_bit(EV_ABS, input[alloc_idx]->evbit);
+ __set_bit(ABS_WHEEL, input[alloc_idx]->absbit);
+ __set_bit(BTN_TOUCH, input[alloc_idx]->keybit);
+ input_set_abs_params(input[alloc_idx],
+ ABS_WHEEL, 0, wl_plat->max_coord, 0, 0);
+
+ input[alloc_idx]->id.bustype = bus_type;
+ input[alloc_idx]->id.product = ad714x->product;
+ input[alloc_idx]->id.version = ad714x->version;
+ input[alloc_idx]->name = "ad714x_captouch_wheel";
+ input[alloc_idx]->dev.parent = dev;
+
+ error = input_register_device(input[alloc_idx]);
+ if (error)
+ goto err_free_dev;
+
+ alloc_idx++;
+ }
+ }
+
+ /* a touchpad uses one input_dev instance */
+ if (ad714x->hw->touchpad_num > 0) {
+ struct ad714x_touchpad_plat *tp_plat = ad714x->hw->touchpad;
+
+ for (i = 0; i < ad714x->hw->touchpad_num; i++) {
+ tp_drv[i].input = input[alloc_idx] = input_allocate_device();
+ if (!input[alloc_idx]) {
+ error = -ENOMEM;
+ goto err_free_dev;
+ }
+
+ __set_bit(EV_ABS, input[alloc_idx]->evbit);
+ __set_bit(EV_KEY, input[alloc_idx]->evbit);
+ __set_bit(ABS_X, input[alloc_idx]->absbit);
+ __set_bit(ABS_Y, input[alloc_idx]->absbit);
+ __set_bit(BTN_TOUCH, input[alloc_idx]->keybit);
+ input_set_abs_params(input[alloc_idx],
+ ABS_X, 0, tp_plat->x_max_coord, 0, 0);
+ input_set_abs_params(input[alloc_idx],
+ ABS_Y, 0, tp_plat->y_max_coord, 0, 0);
+
+ input[alloc_idx]->id.bustype = bus_type;
+ input[alloc_idx]->id.product = ad714x->product;
+ input[alloc_idx]->id.version = ad714x->version;
+ input[alloc_idx]->name = "ad714x_captouch_pad";
+ input[alloc_idx]->dev.parent = dev;
+
+ error = input_register_device(input[alloc_idx]);
+ if (error)
+ goto err_free_dev;
+
+ alloc_idx++;
+ }
+ }
+
+ /* all buttons use one input node */
+ if (ad714x->hw->button_num > 0) {
+ struct ad714x_button_plat *bt_plat = ad714x->hw->button;
+
+ input[alloc_idx] = input_allocate_device();
+ if (!input[alloc_idx]) {
+ error = -ENOMEM;
+ goto err_free_dev;
+ }
+
+ __set_bit(EV_KEY, input[alloc_idx]->evbit);
+ for (i = 0; i < ad714x->hw->button_num; i++) {
+ bt_drv[i].input = input[alloc_idx];
+ __set_bit(bt_plat[i].keycode, input[alloc_idx]->keybit);
+ }
+
+ input[alloc_idx]->id.bustype = bus_type;
+ input[alloc_idx]->id.product = ad714x->product;
+ input[alloc_idx]->id.version = ad714x->version;
+ input[alloc_idx]->name = "ad714x_captouch_button";
+ input[alloc_idx]->dev.parent = dev;
+
+ error = input_register_device(input[alloc_idx]);
+ if (error)
+ goto err_free_dev;
+
+ alloc_idx++;
+ }
+
+ error = request_threaded_irq(ad714x->irq, NULL, ad714x_interrupt_thread,
+ plat_data->irqflags ?
+ plat_data->irqflags : IRQF_TRIGGER_FALLING,
+ "ad714x_captouch", ad714x);
+ if (error) {
+ dev_err(dev, "can't allocate irq %d\n", ad714x->irq);
+ goto err_unreg_dev;
+ }
+
+ return ad714x;
+
+ err_free_dev:
+ dev_err(dev, "failed to setup AD714x input device %i\n", alloc_idx);
+ input_free_device(input[alloc_idx]);
+ err_unreg_dev:
+ while (--alloc_idx >= 0)
+ input_unregister_device(input[alloc_idx]);
+ err_free_mem:
+ kfree(ad714x);
+ err_out:
+ return ERR_PTR(error);
+}
+EXPORT_SYMBOL(ad714x_probe);
+
+void ad714x_remove(struct ad714x_chip *ad714x)
+{
+ struct ad714x_platform_data *hw = ad714x->hw;
+ struct ad714x_driver_data *sw = ad714x->sw;
+ int i;
+
+ free_irq(ad714x->irq, ad714x);
+
+ /* unregister and free all input devices */
+
+ for (i = 0; i < hw->slider_num; i++)
+ input_unregister_device(sw->slider[i].input);
+
+ for (i = 0; i < hw->wheel_num; i++)
+ input_unregister_device(sw->wheel[i].input);
+
+ for (i = 0; i < hw->touchpad_num; i++)
+ input_unregister_device(sw->touchpad[i].input);
+
+ if (hw->button_num)
+ input_unregister_device(sw->button[0].input);
+
+ kfree(ad714x);
+}
+EXPORT_SYMBOL(ad714x_remove);
+
+#ifdef CONFIG_PM
+int ad714x_disable(struct ad714x_chip *ad714x)
+{
+ unsigned short data;
+
+ dev_dbg(ad714x->dev, "%s enter\n", __func__);
+
+ mutex_lock(&ad714x->mutex);
+
+ data = ad714x->hw->sys_cfg_reg[AD714X_PWR_CTRL] | 0x3;
+ ad714x->write(ad714x, AD714X_PWR_CTRL, data);
+
+ mutex_unlock(&ad714x->mutex);
+
+ return 0;
+}
+EXPORT_SYMBOL(ad714x_disable);
+
+int ad714x_enable(struct ad714x_chip *ad714x)
+{
+ dev_dbg(ad714x->dev, "%s enter\n", __func__);
+
+ mutex_lock(&ad714x->mutex);
+
+ /* resume to non-shutdown mode */
+
+ ad714x->write(ad714x, AD714X_PWR_CTRL,
+ ad714x->hw->sys_cfg_reg[AD714X_PWR_CTRL]);
+
+ /* make sure the interrupt output line is not low level after resume,
+ * otherwise we will get no chance to enter falling-edge irq again
+ */
+
+ ad714x->read(ad714x, STG_LOW_INT_STA_REG, &ad714x->l_state, 3);
+
+ mutex_unlock(&ad714x->mutex);
+
+ return 0;
+}
+EXPORT_SYMBOL(ad714x_enable);
+#endif
+
+MODULE_DESCRIPTION("Analog Devices AD714X Capacitance Touch Sensor Driver");
+MODULE_AUTHOR("Barry Song <21cnbao@gmail.com>");
+MODULE_LICENSE("GPL");
diff --git a/drivers/input/misc/ad714x.h b/drivers/input/misc/ad714x.h
new file mode 100644
index 0000000..3c85455
--- /dev/null
+++ b/drivers/input/misc/ad714x.h
@@ -0,0 +1,55 @@
+/*
+ * AD714X CapTouch Programmable Controller driver (bus interfaces)
+ *
+ * Copyright 2009-2011 Analog Devices Inc.
+ *
+ * Licensed under the GPL-2 or later.
+ */
+
+#ifndef _AD714X_H_
+#define _AD714X_H_
+
+#include <linux/types.h>
+
+#define STAGE_NUM 12
+
+struct device;
+struct ad714x_platform_data;
+struct ad714x_driver_data;
+struct ad714x_chip;
+
+typedef int (*ad714x_read_t)(struct ad714x_chip *, unsigned short, unsigned short *, size_t);
+typedef int (*ad714x_write_t)(struct ad714x_chip *, unsigned short, unsigned short);
+
+struct ad714x_chip {
+ unsigned short l_state;
+ unsigned short h_state;
+ unsigned short c_state;
+ unsigned short adc_reg[STAGE_NUM];
+ unsigned short amb_reg[STAGE_NUM];
+ unsigned short sensor_val[STAGE_NUM];
+
+ struct ad714x_platform_data *hw;
+ struct ad714x_driver_data *sw;
+
+ int irq;
+ struct device *dev;
+ ad714x_read_t read;
+ ad714x_write_t write;
+
+ struct mutex mutex;
+
+ unsigned product;
+ unsigned version;
+
+ __be16 xfer_buf[16] ____cacheline_aligned;
+
+};
+
+int ad714x_disable(struct ad714x_chip *ad714x);
+int ad714x_enable(struct ad714x_chip *ad714x);
+struct ad714x_chip *ad714x_probe(struct device *dev, u16 bus_type, int irq,
+ ad714x_read_t read, ad714x_write_t write);
+void ad714x_remove(struct ad714x_chip *ad714x);
+
+#endif
diff --git a/drivers/input/misc/adxl34x-i2c.c b/drivers/input/misc/adxl34x-i2c.c
new file mode 100644
index 0000000..ccacf2b
--- /dev/null
+++ b/drivers/input/misc/adxl34x-i2c.c
@@ -0,0 +1,165 @@
+/*
+ * ADLX345/346 Three-Axis Digital Accelerometers (I2C Interface)
+ *
+ * Enter bugs at http://blackfin.uclinux.org/
+ *
+ * Copyright (C) 2009 Michael Hennerich, Analog Devices Inc.
+ * Licensed under the GPL-2 or later.
+ */
+
+#include <linux/input.h> /* BUS_I2C */
+#include <linux/i2c.h>
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/pm.h>
+#include "adxl34x.h"
+
+static int adxl34x_smbus_read(struct device *dev, unsigned char reg)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+
+ return i2c_smbus_read_byte_data(client, reg);
+}
+
+static int adxl34x_smbus_write(struct device *dev,
+ unsigned char reg, unsigned char val)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+
+ return i2c_smbus_write_byte_data(client, reg, val);
+}
+
+static int adxl34x_smbus_read_block(struct device *dev,
+ unsigned char reg, int count,
+ void *buf)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+
+ return i2c_smbus_read_i2c_block_data(client, reg, count, buf);
+}
+
+static int adxl34x_i2c_read_block(struct device *dev,
+ unsigned char reg, int count,
+ void *buf)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ int ret;
+
+ ret = i2c_master_send(client, ®, 1);
+ if (ret < 0)
+ return ret;
+
+ ret = i2c_master_recv(client, buf, count);
+ if (ret < 0)
+ return ret;
+
+ if (ret != count)
+ return -EIO;
+
+ return 0;
+}
+
+static const struct adxl34x_bus_ops adxl34x_smbus_bops = {
+ .bustype = BUS_I2C,
+ .write = adxl34x_smbus_write,
+ .read = adxl34x_smbus_read,
+ .read_block = adxl34x_smbus_read_block,
+};
+
+static const struct adxl34x_bus_ops adxl34x_i2c_bops = {
+ .bustype = BUS_I2C,
+ .write = adxl34x_smbus_write,
+ .read = adxl34x_smbus_read,
+ .read_block = adxl34x_i2c_read_block,
+};
+
+static int __devinit adxl34x_i2c_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct adxl34x *ac;
+ int error;
+
+ error = i2c_check_functionality(client->adapter,
+ I2C_FUNC_SMBUS_BYTE_DATA);
+ if (!error) {
+ dev_err(&client->dev, "SMBUS Byte Data not Supported\n");
+ return -EIO;
+ }
+
+ ac = adxl34x_probe(&client->dev, client->irq, false,
+ i2c_check_functionality(client->adapter,
+ I2C_FUNC_SMBUS_READ_I2C_BLOCK) ?
+ &adxl34x_smbus_bops : &adxl34x_i2c_bops);
+ if (IS_ERR(ac))
+ return PTR_ERR(ac);
+
+ i2c_set_clientdata(client, ac);
+
+ return 0;
+}
+
+static int __devexit adxl34x_i2c_remove(struct i2c_client *client)
+{
+ struct adxl34x *ac = i2c_get_clientdata(client);
+
+ return adxl34x_remove(ac);
+}
+
+#ifdef CONFIG_PM
+static int adxl34x_i2c_suspend(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct adxl34x *ac = i2c_get_clientdata(client);
+
+ adxl34x_suspend(ac);
+
+ return 0;
+}
+
+static int adxl34x_i2c_resume(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct adxl34x *ac = i2c_get_clientdata(client);
+
+ adxl34x_resume(ac);
+
+ return 0;
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(adxl34x_i2c_pm, adxl34x_i2c_suspend,
+ adxl34x_i2c_resume);
+
+static const struct i2c_device_id adxl34x_id[] = {
+ { "adxl34x", 0 },
+ { }
+};
+
+MODULE_DEVICE_TABLE(i2c, adxl34x_id);
+
+static struct i2c_driver adxl34x_driver = {
+ .driver = {
+ .name = "adxl34x",
+ .owner = THIS_MODULE,
+ .pm = &adxl34x_i2c_pm,
+ },
+ .probe = adxl34x_i2c_probe,
+ .remove = __devexit_p(adxl34x_i2c_remove),
+ .id_table = adxl34x_id,
+};
+
+static int __init adxl34x_i2c_init(void)
+{
+ return i2c_add_driver(&adxl34x_driver);
+}
+module_init(adxl34x_i2c_init);
+
+static void __exit adxl34x_i2c_exit(void)
+{
+ i2c_del_driver(&adxl34x_driver);
+}
+module_exit(adxl34x_i2c_exit);
+
+MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
+MODULE_DESCRIPTION("ADXL345/346 Three-Axis Digital Accelerometer I2C Bus Driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/input/misc/adxl34x-spi.c b/drivers/input/misc/adxl34x-spi.c
new file mode 100644
index 0000000..f29de22
--- /dev/null
+++ b/drivers/input/misc/adxl34x-spi.c
@@ -0,0 +1,147 @@
+/*
+ * ADLX345/346 Three-Axis Digital Accelerometers (SPI Interface)
+ *
+ * Enter bugs at http://blackfin.uclinux.org/
+ *
+ * Copyright (C) 2009 Michael Hennerich, Analog Devices Inc.
+ * Licensed under the GPL-2 or later.
+ */
+
+#include <linux/input.h> /* BUS_SPI */
+#include <linux/module.h>
+#include <linux/spi/spi.h>
+#include <linux/pm.h>
+#include <linux/types.h>
+#include "adxl34x.h"
+
+#define MAX_SPI_FREQ_HZ 5000000
+#define MAX_FREQ_NO_FIFODELAY 1500000
+#define ADXL34X_CMD_MULTB (1 << 6)
+#define ADXL34X_CMD_READ (1 << 7)
+#define ADXL34X_WRITECMD(reg) (reg & 0x3F)
+#define ADXL34X_READCMD(reg) (ADXL34X_CMD_READ | (reg & 0x3F))
+#define ADXL34X_READMB_CMD(reg) (ADXL34X_CMD_READ | ADXL34X_CMD_MULTB \
+ | (reg & 0x3F))
+
+static int adxl34x_spi_read(struct device *dev, unsigned char reg)
+{
+ struct spi_device *spi = to_spi_device(dev);
+ unsigned char cmd;
+
+ cmd = ADXL34X_READCMD(reg);
+
+ return spi_w8r8(spi, cmd);
+}
+
+static int adxl34x_spi_write(struct device *dev,
+ unsigned char reg, unsigned char val)
+{
+ struct spi_device *spi = to_spi_device(dev);
+ unsigned char buf[2];
+
+ buf[0] = ADXL34X_WRITECMD(reg);
+ buf[1] = val;
+
+ return spi_write(spi, buf, sizeof(buf));
+}
+
+static int adxl34x_spi_read_block(struct device *dev,
+ unsigned char reg, int count,
+ void *buf)
+{
+ struct spi_device *spi = to_spi_device(dev);
+ ssize_t status;
+
+ reg = ADXL34X_READMB_CMD(reg);
+ status = spi_write_then_read(spi, ®, 1, buf, count);
+
+ return (status < 0) ? status : 0;
+}
+
+static const struct adxl34x_bus_ops adxl34x_spi_bops = {
+ .bustype = BUS_SPI,
+ .write = adxl34x_spi_write,
+ .read = adxl34x_spi_read,
+ .read_block = adxl34x_spi_read_block,
+};
+
+static int __devinit adxl34x_spi_probe(struct spi_device *spi)
+{
+ struct adxl34x *ac;
+
+ /* don't exceed max specified SPI CLK frequency */
+ if (spi->max_speed_hz > MAX_SPI_FREQ_HZ) {
+ dev_err(&spi->dev, "SPI CLK %d Hz too fast\n", spi->max_speed_hz);
+ return -EINVAL;
+ }
+
+ ac = adxl34x_probe(&spi->dev, spi->irq,
+ spi->max_speed_hz > MAX_FREQ_NO_FIFODELAY,
+ &adxl34x_spi_bops);
+
+ if (IS_ERR(ac))
+ return PTR_ERR(ac);
+
+ spi_set_drvdata(spi, ac);
+
+ return 0;
+}
+
+static int __devexit adxl34x_spi_remove(struct spi_device *spi)
+{
+ struct adxl34x *ac = dev_get_drvdata(&spi->dev);
+
+ return adxl34x_remove(ac);
+}
+
+#ifdef CONFIG_PM
+static int adxl34x_spi_suspend(struct device *dev)
+{
+ struct spi_device *spi = to_spi_device(dev);
+ struct adxl34x *ac = dev_get_drvdata(&spi->dev);
+
+ adxl34x_suspend(ac);
+
+ return 0;
+}
+
+static int adxl34x_spi_resume(struct device *dev)
+{
+ struct spi_device *spi = to_spi_device(dev);
+ struct adxl34x *ac = dev_get_drvdata(&spi->dev);
+
+ adxl34x_resume(ac);
+
+ return 0;
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(adxl34x_spi_pm, adxl34x_spi_suspend,
+ adxl34x_spi_resume);
+
+static struct spi_driver adxl34x_driver = {
+ .driver = {
+ .name = "adxl34x",
+ .bus = &spi_bus_type,
+ .owner = THIS_MODULE,
+ .pm = &adxl34x_spi_pm,
+ },
+ .probe = adxl34x_spi_probe,
+ .remove = __devexit_p(adxl34x_spi_remove),
+};
+
+static int __init adxl34x_spi_init(void)
+{
+ return spi_register_driver(&adxl34x_driver);
+}
+module_init(adxl34x_spi_init);
+
+static void __exit adxl34x_spi_exit(void)
+{
+ spi_unregister_driver(&adxl34x_driver);
+}
+module_exit(adxl34x_spi_exit);
+
+MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
+MODULE_DESCRIPTION("ADXL345/346 Three-Axis Digital Accelerometer SPI Bus Driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/input/misc/adxl34x.c b/drivers/input/misc/adxl34x.c
new file mode 100644
index 0000000..0924480
--- /dev/null
+++ b/drivers/input/misc/adxl34x.c
@@ -0,0 +1,915 @@
+/*
+ * ADXL345/346 Three-Axis Digital Accelerometers
+ *
+ * Enter bugs at http://blackfin.uclinux.org/
+ *
+ * Copyright (C) 2009 Michael Hennerich, Analog Devices Inc.
+ * Licensed under the GPL-2 or later.
+ */
+
+#include <linux/device.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/input.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/slab.h>
+#include <linux/workqueue.h>
+#include <linux/input/adxl34x.h>
+#include <linux/module.h>
+
+#include "adxl34x.h"
+
+/* ADXL345/6 Register Map */
+#define DEVID 0x00 /* R Device ID */
+#define THRESH_TAP 0x1D /* R/W Tap threshold */
+#define OFSX 0x1E /* R/W X-axis offset */
+#define OFSY 0x1F /* R/W Y-axis offset */
+#define OFSZ 0x20 /* R/W Z-axis offset */
+#define DUR 0x21 /* R/W Tap duration */
+#define LATENT 0x22 /* R/W Tap latency */
+#define WINDOW 0x23 /* R/W Tap window */
+#define THRESH_ACT 0x24 /* R/W Activity threshold */
+#define THRESH_INACT 0x25 /* R/W Inactivity threshold */
+#define TIME_INACT 0x26 /* R/W Inactivity time */
+#define ACT_INACT_CTL 0x27 /* R/W Axis enable control for activity and */
+ /* inactivity detection */
+#define THRESH_FF 0x28 /* R/W Free-fall threshold */
+#define TIME_FF 0x29 /* R/W Free-fall time */
+#define TAP_AXES 0x2A /* R/W Axis control for tap/double tap */
+#define ACT_TAP_STATUS 0x2B /* R Source of tap/double tap */
+#define BW_RATE 0x2C /* R/W Data rate and power mode control */
+#define POWER_CTL 0x2D /* R/W Power saving features control */
+#define INT_ENABLE 0x2E /* R/W Interrupt enable control */
+#define INT_MAP 0x2F /* R/W Interrupt mapping control */
+#define INT_SOURCE 0x30 /* R Source of interrupts */
+#define DATA_FORMAT 0x31 /* R/W Data format control */
+#define DATAX0 0x32 /* R X-Axis Data 0 */
+#define DATAX1 0x33 /* R X-Axis Data 1 */
+#define DATAY0 0x34 /* R Y-Axis Data 0 */
+#define DATAY1 0x35 /* R Y-Axis Data 1 */
+#define DATAZ0 0x36 /* R Z-Axis Data 0 */
+#define DATAZ1 0x37 /* R Z-Axis Data 1 */
+#define FIFO_CTL 0x38 /* R/W FIFO control */
+#define FIFO_STATUS 0x39 /* R FIFO status */
+#define TAP_SIGN 0x3A /* R Sign and source for tap/double tap */
+/* Orientation ADXL346 only */
+#define ORIENT_CONF 0x3B /* R/W Orientation configuration */
+#define ORIENT 0x3C /* R Orientation status */
+
+/* DEVIDs */
+#define ID_ADXL345 0xE5
+#define ID_ADXL346 0xE6
+
+/* INT_ENABLE/INT_MAP/INT_SOURCE Bits */
+#define DATA_READY (1 << 7)
+#define SINGLE_TAP (1 << 6)
+#define DOUBLE_TAP (1 << 5)
+#define ACTIVITY (1 << 4)
+#define INACTIVITY (1 << 3)
+#define FREE_FALL (1 << 2)
+#define WATERMARK (1 << 1)
+#define OVERRUN (1 << 0)
+
+/* ACT_INACT_CONTROL Bits */
+#define ACT_ACDC (1 << 7)
+#define ACT_X_EN (1 << 6)
+#define ACT_Y_EN (1 << 5)
+#define ACT_Z_EN (1 << 4)
+#define INACT_ACDC (1 << 3)
+#define INACT_X_EN (1 << 2)
+#define INACT_Y_EN (1 << 1)
+#define INACT_Z_EN (1 << 0)
+
+/* TAP_AXES Bits */
+#define SUPPRESS (1 << 3)
+#define TAP_X_EN (1 << 2)
+#define TAP_Y_EN (1 << 1)
+#define TAP_Z_EN (1 << 0)
+
+/* ACT_TAP_STATUS Bits */
+#define ACT_X_SRC (1 << 6)
+#define ACT_Y_SRC (1 << 5)
+#define ACT_Z_SRC (1 << 4)
+#define ASLEEP (1 << 3)
+#define TAP_X_SRC (1 << 2)
+#define TAP_Y_SRC (1 << 1)
+#define TAP_Z_SRC (1 << 0)
+
+/* BW_RATE Bits */
+#define LOW_POWER (1 << 4)
+#define RATE(x) ((x) & 0xF)
+
+/* POWER_CTL Bits */
+#define PCTL_LINK (1 << 5)
+#define PCTL_AUTO_SLEEP (1 << 4)
+#define PCTL_MEASURE (1 << 3)
+#define PCTL_SLEEP (1 << 2)
+#define PCTL_WAKEUP(x) ((x) & 0x3)
+
+/* DATA_FORMAT Bits */
+#define SELF_TEST (1 << 7)
+#define SPI (1 << 6)
+#define INT_INVERT (1 << 5)
+#define FULL_RES (1 << 3)
+#define JUSTIFY (1 << 2)
+#define RANGE(x) ((x) & 0x3)
+#define RANGE_PM_2g 0
+#define RANGE_PM_4g 1
+#define RANGE_PM_8g 2
+#define RANGE_PM_16g 3
+
+/*
+ * Maximum value our axis may get in full res mode for the input device
+ * (signed 13 bits)
+ */
+#define ADXL_FULLRES_MAX_VAL 4096
+
+/*
+ * Maximum value our axis may get in fixed res mode for the input device
+ * (signed 10 bits)
+ */
+#define ADXL_FIXEDRES_MAX_VAL 512
+
+/* FIFO_CTL Bits */
+#define FIFO_MODE(x) (((x) & 0x3) << 6)
+#define FIFO_BYPASS 0
+#define FIFO_FIFO 1
+#define FIFO_STREAM 2
+#define FIFO_TRIGGER 3
+#define TRIGGER (1 << 5)
+#define SAMPLES(x) ((x) & 0x1F)
+
+/* FIFO_STATUS Bits */
+#define FIFO_TRIG (1 << 7)
+#define ENTRIES(x) ((x) & 0x3F)
+
+/* TAP_SIGN Bits ADXL346 only */
+#define XSIGN (1 << 6)
+#define YSIGN (1 << 5)
+#define ZSIGN (1 << 4)
+#define XTAP (1 << 3)
+#define YTAP (1 << 2)
+#define ZTAP (1 << 1)
+
+/* ORIENT_CONF ADXL346 only */
+#define ORIENT_DEADZONE(x) (((x) & 0x7) << 4)
+#define ORIENT_DIVISOR(x) ((x) & 0x7)
+
+/* ORIENT ADXL346 only */
+#define ADXL346_2D_VALID (1 << 6)
+#define ADXL346_2D_ORIENT(x) (((x) & 0x3) >> 4)
+#define ADXL346_3D_VALID (1 << 3)
+#define ADXL346_3D_ORIENT(x) ((x) & 0x7)
+#define ADXL346_2D_PORTRAIT_POS 0 /* +X */
+#define ADXL346_2D_PORTRAIT_NEG 1 /* -X */
+#define ADXL346_2D_LANDSCAPE_POS 2 /* +Y */
+#define ADXL346_2D_LANDSCAPE_NEG 3 /* -Y */
+
+#define ADXL346_3D_FRONT 3 /* +X */
+#define ADXL346_3D_BACK 4 /* -X */
+#define ADXL346_3D_RIGHT 2 /* +Y */
+#define ADXL346_3D_LEFT 5 /* -Y */
+#define ADXL346_3D_TOP 1 /* +Z */
+#define ADXL346_3D_BOTTOM 6 /* -Z */
+
+#undef ADXL_DEBUG
+
+#define ADXL_X_AXIS 0
+#define ADXL_Y_AXIS 1
+#define ADXL_Z_AXIS 2
+
+#define AC_READ(ac, reg) ((ac)->bops->read((ac)->dev, reg))
+#define AC_WRITE(ac, reg, val) ((ac)->bops->write((ac)->dev, reg, val))
+
+struct axis_triple {
+ int x;
+ int y;
+ int z;
+};
+
+struct adxl34x {
+ struct device *dev;
+ struct input_dev *input;
+ struct mutex mutex; /* reentrant protection for struct */
+ struct adxl34x_platform_data pdata;
+ struct axis_triple swcal;
+ struct axis_triple hwcal;
+ struct axis_triple saved;
+ char phys[32];
+ unsigned orient2d_saved;
+ unsigned orient3d_saved;
+ bool disabled; /* P: mutex */
+ bool opened; /* P: mutex */
+ bool suspended; /* P: mutex */
+ bool fifo_delay;
+ int irq;
+ unsigned model;
+ unsigned int_mask;
+
+ const struct adxl34x_bus_ops *bops;
+};
+
+static const struct adxl34x_platform_data adxl34x_default_init = {
+ .tap_threshold = 35,
+ .tap_duration = 3,
+ .tap_latency = 20,
+ .tap_window = 20,
+ .tap_axis_control = ADXL_TAP_X_EN | ADXL_TAP_Y_EN | ADXL_TAP_Z_EN,
+ .act_axis_control = 0xFF,
+ .activity_threshold = 6,
+ .inactivity_threshold = 4,
+ .inactivity_time = 3,
+ .free_fall_threshold = 8,
+ .free_fall_time = 0x20,
+ .data_rate = 8,
+ .data_range = ADXL_FULL_RES,
+
+ .ev_type = EV_ABS,
+ .ev_code_x = ABS_X, /* EV_REL */
+ .ev_code_y = ABS_Y, /* EV_REL */
+ .ev_code_z = ABS_Z, /* EV_REL */
+
+ .ev_code_tap = {BTN_TOUCH, BTN_TOUCH, BTN_TOUCH}, /* EV_KEY {x,y,z} */
+ .power_mode = ADXL_AUTO_SLEEP | ADXL_LINK,
+ .fifo_mode = FIFO_STREAM,
+ .watermark = 0,
+};
+
+static void adxl34x_get_triple(struct adxl34x *ac, struct axis_triple *axis)
+{
+ short buf[3];
+
+ ac->bops->read_block(ac->dev, DATAX0, DATAZ1 - DATAX0 + 1, buf);
+
+ mutex_lock(&ac->mutex);
+ ac->saved.x = (s16) le16_to_cpu(buf[0]);
+ axis->x = ac->saved.x;
+
+ ac->saved.y = (s16) le16_to_cpu(buf[1]);
+ axis->y = ac->saved.y;
+
+ ac->saved.z = (s16) le16_to_cpu(buf[2]);
+ axis->z = ac->saved.z;
+ mutex_unlock(&ac->mutex);
+}
+
+static void adxl34x_service_ev_fifo(struct adxl34x *ac)
+{
+ struct adxl34x_platform_data *pdata = &ac->pdata;
+ struct axis_triple axis;
+
+ adxl34x_get_triple(ac, &axis);
+
+ input_event(ac->input, pdata->ev_type, pdata->ev_code_x,
+ axis.x - ac->swcal.x);
+ input_event(ac->input, pdata->ev_type, pdata->ev_code_y,
+ axis.y - ac->swcal.y);
+ input_event(ac->input, pdata->ev_type, pdata->ev_code_z,
+ axis.z - ac->swcal.z);
+}
+
+static void adxl34x_report_key_single(struct input_dev *input, int key)
+{
+ input_report_key(input, key, true);
+ input_sync(input);
+ input_report_key(input, key, false);
+}
+
+static void adxl34x_send_key_events(struct adxl34x *ac,
+ struct adxl34x_platform_data *pdata, int status, int press)
+{
+ int i;
+
+ for (i = ADXL_X_AXIS; i <= ADXL_Z_AXIS; i++) {
+ if (status & (1 << (ADXL_Z_AXIS - i)))
+ input_report_key(ac->input,
+ pdata->ev_code_tap[i], press);
+ }
+}
+
+static void adxl34x_do_tap(struct adxl34x *ac,
+ struct adxl34x_platform_data *pdata, int status)
+{
+ adxl34x_send_key_events(ac, pdata, status, true);
+ input_sync(ac->input);
+ adxl34x_send_key_events(ac, pdata, status, false);
+}
+
+static irqreturn_t adxl34x_irq(int irq, void *handle)
+{
+ struct adxl34x *ac = handle;
+ struct adxl34x_platform_data *pdata = &ac->pdata;
+ int int_stat, tap_stat, samples, orient, orient_code;
+
+ /*
+ * ACT_TAP_STATUS should be read before clearing the interrupt
+ * Avoid reading ACT_TAP_STATUS in case TAP detection is disabled
+ */
+
+ if (pdata->tap_axis_control & (TAP_X_EN | TAP_Y_EN | TAP_Z_EN))
+ tap_stat = AC_READ(ac, ACT_TAP_STATUS);
+ else
+ tap_stat = 0;
+
+ int_stat = AC_READ(ac, INT_SOURCE);
+
+ if (int_stat & FREE_FALL)
+ adxl34x_report_key_single(ac->input, pdata->ev_code_ff);
+
+ if (int_stat & OVERRUN)
+ dev_dbg(ac->dev, "OVERRUN\n");
+
+ if (int_stat & (SINGLE_TAP | DOUBLE_TAP)) {
+ adxl34x_do_tap(ac, pdata, tap_stat);
+
+ if (int_stat & DOUBLE_TAP)
+ adxl34x_do_tap(ac, pdata, tap_stat);
+ }
+
+ if (pdata->ev_code_act_inactivity) {
+ if (int_stat & ACTIVITY)
+ input_report_key(ac->input,
+ pdata->ev_code_act_inactivity, 1);
+ if (int_stat & INACTIVITY)
+ input_report_key(ac->input,
+ pdata->ev_code_act_inactivity, 0);
+ }
+
+ /*
+ * ORIENTATION SENSING ADXL346 only
+ */
+ if (pdata->orientation_enable) {
+ orient = AC_READ(ac, ORIENT);
+ if ((pdata->orientation_enable & ADXL_EN_ORIENTATION_2D) &&
+ (orient & ADXL346_2D_VALID)) {
+
+ orient_code = ADXL346_2D_ORIENT(orient);
+ /* Report orientation only when it changes */
+ if (ac->orient2d_saved != orient_code) {
+ ac->orient2d_saved = orient_code;
+ adxl34x_report_key_single(ac->input,
+ pdata->ev_codes_orient_2d[orient_code]);
+ }
+ }
+
+ if ((pdata->orientation_enable & ADXL_EN_ORIENTATION_3D) &&
+ (orient & ADXL346_3D_VALID)) {
+
+ orient_code = ADXL346_3D_ORIENT(orient) - 1;
+ /* Report orientation only when it changes */
+ if (ac->orient3d_saved != orient_code) {
+ ac->orient3d_saved = orient_code;
+ adxl34x_report_key_single(ac->input,
+ pdata->ev_codes_orient_3d[orient_code]);
+ }
+ }
+ }
+
+ if (int_stat & (DATA_READY | WATERMARK)) {
+
+ if (pdata->fifo_mode)
+ samples = ENTRIES(AC_READ(ac, FIFO_STATUS)) + 1;
+ else
+ samples = 1;
+
+ for (; samples > 0; samples--) {
+ adxl34x_service_ev_fifo(ac);
+ /*
+ * To ensure that the FIFO has
+ * completely popped, there must be at least 5 us between
+ * the end of reading the data registers, signified by the
+ * transition to register 0x38 from 0x37 or the CS pin
+ * going high, and the start of new reads of the FIFO or
+ * reading the FIFO_STATUS register. For SPI operation at
+ * 1.5 MHz or lower, the register addressing portion of the
+ * transmission is sufficient delay to ensure the FIFO has
+ * completely popped. It is necessary for SPI operation
+ * greater than 1.5 MHz to de-assert the CS pin to ensure a
+ * total of 5 us, which is at most 3.4 us at 5 MHz
+ * operation.
+ */
+ if (ac->fifo_delay && (samples > 1))
+ udelay(3);
+ }
+ }
+
+ input_sync(ac->input);
+
+ return IRQ_HANDLED;
+}
+
+static void __adxl34x_disable(struct adxl34x *ac)
+{
+ /*
+ * A '0' places the ADXL34x into standby mode
+ * with minimum power consumption.
+ */
+ AC_WRITE(ac, POWER_CTL, 0);
+}
+
+static void __adxl34x_enable(struct adxl34x *ac)
+{
+ AC_WRITE(ac, POWER_CTL, ac->pdata.power_mode | PCTL_MEASURE);
+}
+
+void adxl34x_suspend(struct adxl34x *ac)
+{
+ mutex_lock(&ac->mutex);
+
+ if (!ac->suspended && !ac->disabled && ac->opened)
+ __adxl34x_disable(ac);
+
+ ac->suspended = true;
+
+ mutex_unlock(&ac->mutex);
+}
+EXPORT_SYMBOL_GPL(adxl34x_suspend);
+
+void adxl34x_resume(struct adxl34x *ac)
+{
+ mutex_lock(&ac->mutex);
+
+ if (ac->suspended && !ac->disabled && ac->opened)
+ __adxl34x_enable(ac);
+
+ ac->suspended = false;
+
+ mutex_unlock(&ac->mutex);
+}
+EXPORT_SYMBOL_GPL(adxl34x_resume);
+
+static ssize_t adxl34x_disable_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct adxl34x *ac = dev_get_drvdata(dev);
+
+ return sprintf(buf, "%u\n", ac->disabled);
+}
+
+static ssize_t adxl34x_disable_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct adxl34x *ac = dev_get_drvdata(dev);
+ unsigned long val;
+ int error;
+
+ error = strict_strtoul(buf, 10, &val);
+ if (error)
+ return error;
+
+ mutex_lock(&ac->mutex);
+
+ if (!ac->suspended && ac->opened) {
+ if (val) {
+ if (!ac->disabled)
+ __adxl34x_disable(ac);
+ } else {
+ if (ac->disabled)
+ __adxl34x_enable(ac);
+ }
+ }
+
+ ac->disabled = !!val;
+
+ mutex_unlock(&ac->mutex);
+
+ return count;
+}
+
+static DEVICE_ATTR(disable, 0664, adxl34x_disable_show, adxl34x_disable_store);
+
+static ssize_t adxl34x_calibrate_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct adxl34x *ac = dev_get_drvdata(dev);
+ ssize_t count;
+
+ mutex_lock(&ac->mutex);
+ count = sprintf(buf, "%d,%d,%d\n",
+ ac->hwcal.x * 4 + ac->swcal.x,
+ ac->hwcal.y * 4 + ac->swcal.y,
+ ac->hwcal.z * 4 + ac->swcal.z);
+ mutex_unlock(&ac->mutex);
+
+ return count;
+}
+
+static ssize_t adxl34x_calibrate_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct adxl34x *ac = dev_get_drvdata(dev);
+
+ /*
+ * Hardware offset calibration has a resolution of 15.6 mg/LSB.
+ * We use HW calibration and handle the remaining bits in SW. (4mg/LSB)
+ */
+
+ mutex_lock(&ac->mutex);
+ ac->hwcal.x -= (ac->saved.x / 4);
+ ac->swcal.x = ac->saved.x % 4;
+
+ ac->hwcal.y -= (ac->saved.y / 4);
+ ac->swcal.y = ac->saved.y % 4;
+
+ ac->hwcal.z -= (ac->saved.z / 4);
+ ac->swcal.z = ac->saved.z % 4;
+
+ AC_WRITE(ac, OFSX, (s8) ac->hwcal.x);
+ AC_WRITE(ac, OFSY, (s8) ac->hwcal.y);
+ AC_WRITE(ac, OFSZ, (s8) ac->hwcal.z);
+ mutex_unlock(&ac->mutex);
+
+ return count;
+}
+
+static DEVICE_ATTR(calibrate, 0664,
+ adxl34x_calibrate_show, adxl34x_calibrate_store);
+
+static ssize_t adxl34x_rate_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct adxl34x *ac = dev_get_drvdata(dev);
+
+ return sprintf(buf, "%u\n", RATE(ac->pdata.data_rate));
+}
+
+static ssize_t adxl34x_rate_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct adxl34x *ac = dev_get_drvdata(dev);
+ unsigned long val;
+ int error;
+
+ error = strict_strtoul(buf, 10, &val);
+ if (error)
+ return error;
+
+ mutex_lock(&ac->mutex);
+
+ ac->pdata.data_rate = RATE(val);
+ AC_WRITE(ac, BW_RATE,
+ ac->pdata.data_rate |
+ (ac->pdata.low_power_mode ? LOW_POWER : 0));
+
+ mutex_unlock(&ac->mutex);
+
+ return count;
+}
+
+static DEVICE_ATTR(rate, 0664, adxl34x_rate_show, adxl34x_rate_store);
+
+static ssize_t adxl34x_autosleep_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct adxl34x *ac = dev_get_drvdata(dev);
+
+ return sprintf(buf, "%u\n",
+ ac->pdata.power_mode & (PCTL_AUTO_SLEEP | PCTL_LINK) ? 1 : 0);
+}
+
+static ssize_t adxl34x_autosleep_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct adxl34x *ac = dev_get_drvdata(dev);
+ unsigned long val;
+ int error;
+
+ error = strict_strtoul(buf, 10, &val);
+ if (error)
+ return error;
+
+ mutex_lock(&ac->mutex);
+
+ if (val)
+ ac->pdata.power_mode |= (PCTL_AUTO_SLEEP | PCTL_LINK);
+ else
+ ac->pdata.power_mode &= ~(PCTL_AUTO_SLEEP | PCTL_LINK);
+
+ if (!ac->disabled && !ac->suspended && ac->opened)
+ AC_WRITE(ac, POWER_CTL, ac->pdata.power_mode | PCTL_MEASURE);
+
+ mutex_unlock(&ac->mutex);
+
+ return count;
+}
+
+static DEVICE_ATTR(autosleep, 0664,
+ adxl34x_autosleep_show, adxl34x_autosleep_store);
+
+static ssize_t adxl34x_position_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct adxl34x *ac = dev_get_drvdata(dev);
+ ssize_t count;
+
+ mutex_lock(&ac->mutex);
+ count = sprintf(buf, "(%d, %d, %d)\n",
+ ac->saved.x, ac->saved.y, ac->saved.z);
+ mutex_unlock(&ac->mutex);
+
+ return count;
+}
+
+static DEVICE_ATTR(position, S_IRUGO, adxl34x_position_show, NULL);
+
+#ifdef ADXL_DEBUG
+static ssize_t adxl34x_write_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct adxl34x *ac = dev_get_drvdata(dev);
+ unsigned long val;
+ int error;
+
+ /*
+ * This allows basic ADXL register write access for debug purposes.
+ */
+ error = strict_strtoul(buf, 16, &val);
+ if (error)
+ return error;
+
+ mutex_lock(&ac->mutex);
+ AC_WRITE(ac, val >> 8, val & 0xFF);
+ mutex_unlock(&ac->mutex);
+
+ return count;
+}
+
+static DEVICE_ATTR(write, 0664, NULL, adxl34x_write_store);
+#endif
+
+static struct attribute *adxl34x_attributes[] = {
+ &dev_attr_disable.attr,
+ &dev_attr_calibrate.attr,
+ &dev_attr_rate.attr,
+ &dev_attr_autosleep.attr,
+ &dev_attr_position.attr,
+#ifdef ADXL_DEBUG
+ &dev_attr_write.attr,
+#endif
+ NULL
+};
+
+static const struct attribute_group adxl34x_attr_group = {
+ .attrs = adxl34x_attributes,
+};
+
+static int adxl34x_input_open(struct input_dev *input)
+{
+ struct adxl34x *ac = input_get_drvdata(input);
+
+ mutex_lock(&ac->mutex);
+
+ if (!ac->suspended && !ac->disabled)
+ __adxl34x_enable(ac);
+
+ ac->opened = true;
+
+ mutex_unlock(&ac->mutex);
+
+ return 0;
+}
+
+static void adxl34x_input_close(struct input_dev *input)
+{
+ struct adxl34x *ac = input_get_drvdata(input);
+
+ mutex_lock(&ac->mutex);
+
+ if (!ac->suspended && !ac->disabled)
+ __adxl34x_disable(ac);
+
+ ac->opened = false;
+
+ mutex_unlock(&ac->mutex);
+}
+
+struct adxl34x *adxl34x_probe(struct device *dev, int irq,
+ bool fifo_delay_default,
+ const struct adxl34x_bus_ops *bops)
+{
+ struct adxl34x *ac;
+ struct input_dev *input_dev;
+ const struct adxl34x_platform_data *pdata;
+ int err, range, i;
+ unsigned char revid;
+
+ if (!irq) {
+ dev_err(dev, "no IRQ?\n");
+ err = -ENODEV;
+ goto err_out;
+ }
+
+ ac = kzalloc(sizeof(*ac), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!ac || !input_dev) {
+ err = -ENOMEM;
+ goto err_free_mem;
+ }
+
+ ac->fifo_delay = fifo_delay_default;
+
+ pdata = dev->platform_data;
+ if (!pdata) {
+ dev_dbg(dev,
+ "No platform data: Using default initialization\n");
+ pdata = &adxl34x_default_init;
+ }
+
+ ac->pdata = *pdata;
+ pdata = &ac->pdata;
+
+ ac->input = input_dev;
+ ac->dev = dev;
+ ac->irq = irq;
+ ac->bops = bops;
+
+ mutex_init(&ac->mutex);
+
+ input_dev->name = "ADXL34x accelerometer";
+ revid = ac->bops->read(dev, DEVID);
+
+ switch (revid) {
+ case ID_ADXL345:
+ ac->model = 345;
+ break;
+ case ID_ADXL346:
+ ac->model = 346;
+ break;
+ default:
+ dev_err(dev, "Failed to probe %s\n", input_dev->name);
+ err = -ENODEV;
+ goto err_free_mem;
+ }
+
+ snprintf(ac->phys, sizeof(ac->phys), "%s/input0", dev_name(dev));
+
+ input_dev->phys = ac->phys;
+ input_dev->dev.parent = dev;
+ input_dev->id.product = ac->model;
+ input_dev->id.bustype = bops->bustype;
+ input_dev->open = adxl34x_input_open;
+ input_dev->close = adxl34x_input_close;
+
+ input_set_drvdata(input_dev, ac);
+
+ __set_bit(ac->pdata.ev_type, input_dev->evbit);
+
+ if (ac->pdata.ev_type == EV_REL) {
+ __set_bit(REL_X, input_dev->relbit);
+ __set_bit(REL_Y, input_dev->relbit);
+ __set_bit(REL_Z, input_dev->relbit);
+ } else {
+ /* EV_ABS */
+ __set_bit(ABS_X, input_dev->absbit);
+ __set_bit(ABS_Y, input_dev->absbit);
+ __set_bit(ABS_Z, input_dev->absbit);
+
+ if (pdata->data_range & FULL_RES)
+ range = ADXL_FULLRES_MAX_VAL; /* Signed 13-bit */
+ else
+ range = ADXL_FIXEDRES_MAX_VAL; /* Signed 10-bit */
+
+ input_set_abs_params(input_dev, ABS_X, -range, range, 3, 3);
+ input_set_abs_params(input_dev, ABS_Y, -range, range, 3, 3);
+ input_set_abs_params(input_dev, ABS_Z, -range, range, 3, 3);
+ }
+
+ __set_bit(EV_KEY, input_dev->evbit);
+ __set_bit(pdata->ev_code_tap[ADXL_X_AXIS], input_dev->keybit);
+ __set_bit(pdata->ev_code_tap[ADXL_Y_AXIS], input_dev->keybit);
+ __set_bit(pdata->ev_code_tap[ADXL_Z_AXIS], input_dev->keybit);
+
+ if (pdata->ev_code_ff) {
+ ac->int_mask = FREE_FALL;
+ __set_bit(pdata->ev_code_ff, input_dev->keybit);
+ }
+
+ if (pdata->ev_code_act_inactivity)
+ __set_bit(pdata->ev_code_act_inactivity, input_dev->keybit);
+
+ ac->int_mask |= ACTIVITY | INACTIVITY;
+
+ if (pdata->watermark) {
+ ac->int_mask |= WATERMARK;
+ if (!FIFO_MODE(pdata->fifo_mode))
+ ac->pdata.fifo_mode |= FIFO_STREAM;
+ } else {
+ ac->int_mask |= DATA_READY;
+ }
+
+ if (pdata->tap_axis_control & (TAP_X_EN | TAP_Y_EN | TAP_Z_EN))
+ ac->int_mask |= SINGLE_TAP | DOUBLE_TAP;
+
+ if (FIFO_MODE(pdata->fifo_mode) == FIFO_BYPASS)
+ ac->fifo_delay = false;
+
+ ac->bops->write(dev, POWER_CTL, 0);
+
+ err = request_threaded_irq(ac->irq, NULL, adxl34x_irq,
+ IRQF_TRIGGER_HIGH | IRQF_ONESHOT,
+ dev_name(dev), ac);
+ if (err) {
+ dev_err(dev, "irq %d busy?\n", ac->irq);
+ goto err_free_mem;
+ }
+
+ err = sysfs_create_group(&dev->kobj, &adxl34x_attr_group);
+ if (err)
+ goto err_free_irq;
+
+ err = input_register_device(input_dev);
+ if (err)
+ goto err_remove_attr;
+
+ AC_WRITE(ac, THRESH_TAP, pdata->tap_threshold);
+ AC_WRITE(ac, OFSX, pdata->x_axis_offset);
+ ac->hwcal.x = pdata->x_axis_offset;
+ AC_WRITE(ac, OFSY, pdata->y_axis_offset);
+ ac->hwcal.y = pdata->y_axis_offset;
+ AC_WRITE(ac, OFSZ, pdata->z_axis_offset);
+ ac->hwcal.z = pdata->z_axis_offset;
+ AC_WRITE(ac, THRESH_TAP, pdata->tap_threshold);
+ AC_WRITE(ac, DUR, pdata->tap_duration);
+ AC_WRITE(ac, LATENT, pdata->tap_latency);
+ AC_WRITE(ac, WINDOW, pdata->tap_window);
+ AC_WRITE(ac, THRESH_ACT, pdata->activity_threshold);
+ AC_WRITE(ac, THRESH_INACT, pdata->inactivity_threshold);
+ AC_WRITE(ac, TIME_INACT, pdata->inactivity_time);
+ AC_WRITE(ac, THRESH_FF, pdata->free_fall_threshold);
+ AC_WRITE(ac, TIME_FF, pdata->free_fall_time);
+ AC_WRITE(ac, TAP_AXES, pdata->tap_axis_control);
+ AC_WRITE(ac, ACT_INACT_CTL, pdata->act_axis_control);
+ AC_WRITE(ac, BW_RATE, RATE(ac->pdata.data_rate) |
+ (pdata->low_power_mode ? LOW_POWER : 0));
+ AC_WRITE(ac, DATA_FORMAT, pdata->data_range);
+ AC_WRITE(ac, FIFO_CTL, FIFO_MODE(pdata->fifo_mode) |
+ SAMPLES(pdata->watermark));
+
+ if (pdata->use_int2) {
+ /* Map all INTs to INT2 */
+ AC_WRITE(ac, INT_MAP, ac->int_mask | OVERRUN);
+ } else {
+ /* Map all INTs to INT1 */
+ AC_WRITE(ac, INT_MAP, 0);
+ }
+
+ if (ac->model == 346 && ac->pdata.orientation_enable) {
+ AC_WRITE(ac, ORIENT_CONF,
+ ORIENT_DEADZONE(ac->pdata.deadzone_angle) |
+ ORIENT_DIVISOR(ac->pdata.divisor_length));
+
+ ac->orient2d_saved = 1234;
+ ac->orient3d_saved = 1234;
+
+ if (pdata->orientation_enable & ADXL_EN_ORIENTATION_3D)
+ for (i = 0; i < ARRAY_SIZE(pdata->ev_codes_orient_3d); i++)
+ __set_bit(pdata->ev_codes_orient_3d[i],
+ input_dev->keybit);
+
+ if (pdata->orientation_enable & ADXL_EN_ORIENTATION_2D)
+ for (i = 0; i < ARRAY_SIZE(pdata->ev_codes_orient_2d); i++)
+ __set_bit(pdata->ev_codes_orient_2d[i],
+ input_dev->keybit);
+ } else {
+ ac->pdata.orientation_enable = 0;
+ }
+
+ AC_WRITE(ac, INT_ENABLE, ac->int_mask | OVERRUN);
+
+ ac->pdata.power_mode &= (PCTL_AUTO_SLEEP | PCTL_LINK);
+
+ return ac;
+
+ err_remove_attr:
+ sysfs_remove_group(&dev->kobj, &adxl34x_attr_group);
+ err_free_irq:
+ free_irq(ac->irq, ac);
+ err_free_mem:
+ input_free_device(input_dev);
+ kfree(ac);
+ err_out:
+ return ERR_PTR(err);
+}
+EXPORT_SYMBOL_GPL(adxl34x_probe);
+
+int adxl34x_remove(struct adxl34x *ac)
+{
+ sysfs_remove_group(&ac->dev->kobj, &adxl34x_attr_group);
+ free_irq(ac->irq, ac);
+ input_unregister_device(ac->input);
+ dev_dbg(ac->dev, "unregistered accelerometer\n");
+ kfree(ac);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(adxl34x_remove);
+
+MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
+MODULE_DESCRIPTION("ADXL345/346 Three-Axis Digital Accelerometer Driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/input/misc/adxl34x.h b/drivers/input/misc/adxl34x.h
new file mode 100644
index 0000000..bbbc80f
--- /dev/null
+++ b/drivers/input/misc/adxl34x.h
@@ -0,0 +1,30 @@
+/*
+ * ADXL345/346 Three-Axis Digital Accelerometers (I2C/SPI Interface)
+ *
+ * Enter bugs at http://blackfin.uclinux.org/
+ *
+ * Copyright (C) 2009 Michael Hennerich, Analog Devices Inc.
+ * Licensed under the GPL-2 or later.
+ */
+
+#ifndef _ADXL34X_H_
+#define _ADXL34X_H_
+
+struct device;
+struct adxl34x;
+
+struct adxl34x_bus_ops {
+ u16 bustype;
+ int (*read)(struct device *, unsigned char);
+ int (*read_block)(struct device *, unsigned char, int, void *);
+ int (*write)(struct device *, unsigned char, unsigned char);
+};
+
+void adxl34x_suspend(struct adxl34x *ac);
+void adxl34x_resume(struct adxl34x *ac);
+struct adxl34x *adxl34x_probe(struct device *dev, int irq,
+ bool fifo_delay_default,
+ const struct adxl34x_bus_ops *bops);
+int adxl34x_remove(struct adxl34x *ac);
+
+#endif
diff --git a/drivers/input/misc/apanel.c b/drivers/input/misc/apanel.c
new file mode 100644
index 0000000..a8d2b8d
--- /dev/null
+++ b/drivers/input/misc/apanel.c
@@ -0,0 +1,350 @@
+/*
+ * Fujitsu Lifebook Application Panel button drive
+ *
+ * Copyright (C) 2007 Stephen Hemminger <shemminger@linux-foundation.org>
+ * Copyright (C) 2001-2003 Jochen Eisinger <jochen@penguin-breeder.org>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * Many Fujitsu Lifebook laptops have a small panel of buttons that are
+ * accessible via the i2c/smbus interface. This driver polls those
+ * buttons and generates input events.
+ *
+ * For more details see:
+ * http://apanel.sourceforge.net/tech.php
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/ioport.h>
+#include <linux/io.h>
+#include <linux/input-polldev.h>
+#include <linux/i2c.h>
+#include <linux/workqueue.h>
+#include <linux/leds.h>
+
+#define APANEL_NAME "Fujitsu Application Panel"
+#define APANEL_VERSION "1.3.1"
+#define APANEL "apanel"
+
+/* How often we poll keys - msecs */
+#define POLL_INTERVAL_DEFAULT 1000
+
+/* Magic constants in BIOS that tell about buttons */
+enum apanel_devid {
+ APANEL_DEV_NONE = 0,
+ APANEL_DEV_APPBTN = 1,
+ APANEL_DEV_CDBTN = 2,
+ APANEL_DEV_LCD = 3,
+ APANEL_DEV_LED = 4,
+
+ APANEL_DEV_MAX,
+};
+
+enum apanel_chip {
+ CHIP_NONE = 0,
+ CHIP_OZ992C = 1,
+ CHIP_OZ163T = 2,
+ CHIP_OZ711M3 = 4,
+};
+
+/* Result of BIOS snooping/probing -- what features are supported */
+static enum apanel_chip device_chip[APANEL_DEV_MAX];
+
+#define MAX_PANEL_KEYS 12
+
+struct apanel {
+ struct input_polled_dev *ipdev;
+ struct i2c_client *client;
+ unsigned short keymap[MAX_PANEL_KEYS];
+ u16 nkeys;
+ u16 led_bits;
+ struct work_struct led_work;
+ struct led_classdev mail_led;
+};
+
+
+static int apanel_probe(struct i2c_client *, const struct i2c_device_id *);
+
+static void report_key(struct input_dev *input, unsigned keycode)
+{
+ pr_debug(APANEL ": report key %#x\n", keycode);
+ input_report_key(input, keycode, 1);
+ input_sync(input);
+
+ input_report_key(input, keycode, 0);
+ input_sync(input);
+}
+
+/* Poll for key changes
+ *
+ * Read Application keys via SMI
+ * A (0x4), B (0x8), Internet (0x2), Email (0x1).
+ *
+ * CD keys:
+ * Forward (0x100), Rewind (0x200), Stop (0x400), Pause (0x800)
+ */
+static void apanel_poll(struct input_polled_dev *ipdev)
+{
+ struct apanel *ap = ipdev->private;
+ struct input_dev *idev = ipdev->input;
+ u8 cmd = device_chip[APANEL_DEV_APPBTN] == CHIP_OZ992C ? 0 : 8;
+ s32 data;
+ int i;
+
+ data = i2c_smbus_read_word_data(ap->client, cmd);
+ if (data < 0)
+ return; /* ignore errors (due to ACPI??) */
+
+ /* write back to clear latch */
+ i2c_smbus_write_word_data(ap->client, cmd, 0);
+
+ if (!data)
+ return;
+
+ dev_dbg(&idev->dev, APANEL ": data %#x\n", data);
+ for (i = 0; i < idev->keycodemax; i++)
+ if ((1u << i) & data)
+ report_key(idev, ap->keymap[i]);
+}
+
+/* Track state changes of LED */
+static void led_update(struct work_struct *work)
+{
+ struct apanel *ap = container_of(work, struct apanel, led_work);
+
+ i2c_smbus_write_word_data(ap->client, 0x10, ap->led_bits);
+}
+
+static void mail_led_set(struct led_classdev *led,
+ enum led_brightness value)
+{
+ struct apanel *ap = container_of(led, struct apanel, mail_led);
+
+ if (value != LED_OFF)
+ ap->led_bits |= 0x8000;
+ else
+ ap->led_bits &= ~0x8000;
+
+ schedule_work(&ap->led_work);
+}
+
+static int apanel_remove(struct i2c_client *client)
+{
+ struct apanel *ap = i2c_get_clientdata(client);
+
+ if (device_chip[APANEL_DEV_LED] != CHIP_NONE)
+ led_classdev_unregister(&ap->mail_led);
+
+ input_unregister_polled_device(ap->ipdev);
+ input_free_polled_device(ap->ipdev);
+
+ return 0;
+}
+
+static void apanel_shutdown(struct i2c_client *client)
+{
+ apanel_remove(client);
+}
+
+static const struct i2c_device_id apanel_id[] = {
+ { "fujitsu_apanel", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, apanel_id);
+
+static struct i2c_driver apanel_driver = {
+ .driver = {
+ .name = APANEL,
+ },
+ .probe = &apanel_probe,
+ .remove = &apanel_remove,
+ .shutdown = &apanel_shutdown,
+ .id_table = apanel_id,
+};
+
+static struct apanel apanel = {
+ .keymap = {
+ [0] = KEY_MAIL,
+ [1] = KEY_WWW,
+ [2] = KEY_PROG2,
+ [3] = KEY_PROG1,
+
+ [8] = KEY_FORWARD,
+ [9] = KEY_REWIND,
+ [10] = KEY_STOPCD,
+ [11] = KEY_PLAYPAUSE,
+
+ },
+ .mail_led = {
+ .name = "mail:blue",
+ .brightness_set = mail_led_set,
+ },
+};
+
+/* NB: Only one panel on the i2c. */
+static int apanel_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct apanel *ap;
+ struct input_polled_dev *ipdev;
+ struct input_dev *idev;
+ u8 cmd = device_chip[APANEL_DEV_APPBTN] == CHIP_OZ992C ? 0 : 8;
+ int i, err = -ENOMEM;
+
+ ap = &apanel;
+
+ ipdev = input_allocate_polled_device();
+ if (!ipdev)
+ goto out1;
+
+ ap->ipdev = ipdev;
+ ap->client = client;
+
+ i2c_set_clientdata(client, ap);
+
+ err = i2c_smbus_write_word_data(client, cmd, 0);
+ if (err) {
+ dev_warn(&client->dev, APANEL ": smbus write error %d\n",
+ err);
+ goto out3;
+ }
+
+ ipdev->poll = apanel_poll;
+ ipdev->poll_interval = POLL_INTERVAL_DEFAULT;
+ ipdev->private = ap;
+
+ idev = ipdev->input;
+ idev->name = APANEL_NAME " buttons";
+ idev->phys = "apanel/input0";
+ idev->id.bustype = BUS_HOST;
+ idev->dev.parent = &client->dev;
+
+ set_bit(EV_KEY, idev->evbit);
+
+ idev->keycode = ap->keymap;
+ idev->keycodesize = sizeof(ap->keymap[0]);
+ idev->keycodemax = (device_chip[APANEL_DEV_CDBTN] != CHIP_NONE) ? 12 : 4;
+
+ for (i = 0; i < idev->keycodemax; i++)
+ if (ap->keymap[i])
+ set_bit(ap->keymap[i], idev->keybit);
+
+ err = input_register_polled_device(ipdev);
+ if (err)
+ goto out3;
+
+ INIT_WORK(&ap->led_work, led_update);
+ if (device_chip[APANEL_DEV_LED] != CHIP_NONE) {
+ err = led_classdev_register(&client->dev, &ap->mail_led);
+ if (err)
+ goto out4;
+ }
+
+ return 0;
+out4:
+ input_unregister_polled_device(ipdev);
+out3:
+ input_free_polled_device(ipdev);
+out1:
+ return err;
+}
+
+/* Scan the system ROM for the signature "FJKEYINF" */
+static __init const void __iomem *bios_signature(const void __iomem *bios)
+{
+ ssize_t offset;
+ const unsigned char signature[] = "FJKEYINF";
+
+ for (offset = 0; offset < 0x10000; offset += 0x10) {
+ if (check_signature(bios + offset, signature,
+ sizeof(signature)-1))
+ return bios + offset;
+ }
+ pr_notice(APANEL ": Fujitsu BIOS signature '%s' not found...\n",
+ signature);
+ return NULL;
+}
+
+static int __init apanel_init(void)
+{
+ void __iomem *bios;
+ const void __iomem *p;
+ u8 devno;
+ unsigned char i2c_addr;
+ int found = 0;
+
+ bios = ioremap(0xF0000, 0x10000); /* Can't fail */
+
+ p = bios_signature(bios);
+ if (!p) {
+ iounmap(bios);
+ return -ENODEV;
+ }
+
+ /* just use the first address */
+ p += 8;
+ i2c_addr = readb(p + 3) >> 1;
+
+ for ( ; (devno = readb(p)) & 0x7f; p += 4) {
+ unsigned char method, slave, chip;
+
+ method = readb(p + 1);
+ chip = readb(p + 2);
+ slave = readb(p + 3) >> 1;
+
+ if (slave != i2c_addr) {
+ pr_notice(APANEL ": only one SMBus slave "
+ "address supported, skiping device...\n");
+ continue;
+ }
+
+ /* translate alternative device numbers */
+ switch (devno) {
+ case 6:
+ devno = APANEL_DEV_APPBTN;
+ break;
+ case 7:
+ devno = APANEL_DEV_LED;
+ break;
+ }
+
+ if (devno >= APANEL_DEV_MAX)
+ pr_notice(APANEL ": unknown device %u found\n", devno);
+ else if (device_chip[devno] != CHIP_NONE)
+ pr_warning(APANEL ": duplicate entry for devno %u\n", devno);
+
+ else if (method != 1 && method != 2 && method != 4) {
+ pr_notice(APANEL ": unknown method %u for devno %u\n",
+ method, devno);
+ } else {
+ device_chip[devno] = (enum apanel_chip) chip;
+ ++found;
+ }
+ }
+ iounmap(bios);
+
+ if (found == 0) {
+ pr_info(APANEL ": no input devices reported by BIOS\n");
+ return -EIO;
+ }
+
+ return i2c_add_driver(&apanel_driver);
+}
+module_init(apanel_init);
+
+static void __exit apanel_cleanup(void)
+{
+ i2c_del_driver(&apanel_driver);
+}
+module_exit(apanel_cleanup);
+
+MODULE_AUTHOR("Stephen Hemminger <shemminger@linux-foundation.org>");
+MODULE_DESCRIPTION(APANEL_NAME " driver");
+MODULE_LICENSE("GPL");
+MODULE_VERSION(APANEL_VERSION);
+
+MODULE_ALIAS("dmi:*:svnFUJITSU:pnLifeBook*:pvr*:rvnFUJITSU:*");
+MODULE_ALIAS("dmi:*:svnFUJITSU:pnLifebook*:pvr*:rvnFUJITSU:*");
diff --git a/drivers/input/misc/ati_remote2.c b/drivers/input/misc/ati_remote2.c
new file mode 100644
index 0000000..8d345e8
--- /dev/null
+++ b/drivers/input/misc/ati_remote2.c
@@ -0,0 +1,1032 @@
+/*
+ * ati_remote2 - ATI/Philips USB RF remote driver
+ *
+ * Copyright (C) 2005-2008 Ville Syrjala <syrjala@sci.fi>
+ * Copyright (C) 2007-2008 Peter Stokes <linux@dadeos.co.uk>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.
+ */
+
+#include <linux/usb/input.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+
+#define DRIVER_DESC "ATI/Philips USB RF remote driver"
+#define DRIVER_VERSION "0.3"
+
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_VERSION(DRIVER_VERSION);
+MODULE_AUTHOR("Ville Syrjala <syrjala@sci.fi>");
+MODULE_LICENSE("GPL");
+
+/*
+ * ATI Remote Wonder II Channel Configuration
+ *
+ * The remote control can by assigned one of sixteen "channels" in order to facilitate
+ * the use of multiple remote controls within range of each other.
+ * A remote's "channel" may be altered by pressing and holding the "PC" button for
+ * approximately 3 seconds, after which the button will slowly flash the count of the
+ * currently configured "channel", using the numeric keypad enter a number between 1 and
+ * 16 and then press the "PC" button again, the button will slowly flash the count of the
+ * newly configured "channel".
+ */
+
+enum {
+ ATI_REMOTE2_MAX_CHANNEL_MASK = 0xFFFF,
+ ATI_REMOTE2_MAX_MODE_MASK = 0x1F,
+};
+
+static int ati_remote2_set_mask(const char *val,
+ const struct kernel_param *kp,
+ unsigned int max)
+{
+ unsigned long mask;
+ int ret;
+
+ if (!val)
+ return -EINVAL;
+
+ ret = strict_strtoul(val, 0, &mask);
+ if (ret)
+ return ret;
+
+ if (mask & ~max)
+ return -EINVAL;
+
+ *(unsigned int *)kp->arg = mask;
+
+ return 0;
+}
+
+static int ati_remote2_set_channel_mask(const char *val,
+ const struct kernel_param *kp)
+{
+ pr_debug("%s()\n", __func__);
+
+ return ati_remote2_set_mask(val, kp, ATI_REMOTE2_MAX_CHANNEL_MASK);
+}
+
+static int ati_remote2_get_channel_mask(char *buffer,
+ const struct kernel_param *kp)
+{
+ pr_debug("%s()\n", __func__);
+
+ return sprintf(buffer, "0x%04x", *(unsigned int *)kp->arg);
+}
+
+static int ati_remote2_set_mode_mask(const char *val,
+ const struct kernel_param *kp)
+{
+ pr_debug("%s()\n", __func__);
+
+ return ati_remote2_set_mask(val, kp, ATI_REMOTE2_MAX_MODE_MASK);
+}
+
+static int ati_remote2_get_mode_mask(char *buffer,
+ const struct kernel_param *kp)
+{
+ pr_debug("%s()\n", __func__);
+
+ return sprintf(buffer, "0x%02x", *(unsigned int *)kp->arg);
+}
+
+static unsigned int channel_mask = ATI_REMOTE2_MAX_CHANNEL_MASK;
+#define param_check_channel_mask(name, p) __param_check(name, p, unsigned int)
+static struct kernel_param_ops param_ops_channel_mask = {
+ .set = ati_remote2_set_channel_mask,
+ .get = ati_remote2_get_channel_mask,
+};
+module_param(channel_mask, channel_mask, 0644);
+MODULE_PARM_DESC(channel_mask, "Bitmask of channels to accept <15:Channel16>...<1:Channel2><0:Channel1>");
+
+static unsigned int mode_mask = ATI_REMOTE2_MAX_MODE_MASK;
+#define param_check_mode_mask(name, p) __param_check(name, p, unsigned int)
+static struct kernel_param_ops param_ops_mode_mask = {
+ .set = ati_remote2_set_mode_mask,
+ .get = ati_remote2_get_mode_mask,
+};
+module_param(mode_mask, mode_mask, 0644);
+MODULE_PARM_DESC(mode_mask, "Bitmask of modes to accept <4:PC><3:AUX4><2:AUX3><1:AUX2><0:AUX1>");
+
+static struct usb_device_id ati_remote2_id_table[] = {
+ { USB_DEVICE(0x0471, 0x0602) }, /* ATI Remote Wonder II */
+ { }
+};
+MODULE_DEVICE_TABLE(usb, ati_remote2_id_table);
+
+static DEFINE_MUTEX(ati_remote2_mutex);
+
+enum {
+ ATI_REMOTE2_OPENED = 0x1,
+ ATI_REMOTE2_SUSPENDED = 0x2,
+};
+
+enum {
+ ATI_REMOTE2_AUX1,
+ ATI_REMOTE2_AUX2,
+ ATI_REMOTE2_AUX3,
+ ATI_REMOTE2_AUX4,
+ ATI_REMOTE2_PC,
+ ATI_REMOTE2_MODES,
+};
+
+static const struct {
+ u8 hw_code;
+ u16 keycode;
+} ati_remote2_key_table[] = {
+ { 0x00, KEY_0 },
+ { 0x01, KEY_1 },
+ { 0x02, KEY_2 },
+ { 0x03, KEY_3 },
+ { 0x04, KEY_4 },
+ { 0x05, KEY_5 },
+ { 0x06, KEY_6 },
+ { 0x07, KEY_7 },
+ { 0x08, KEY_8 },
+ { 0x09, KEY_9 },
+ { 0x0c, KEY_POWER },
+ { 0x0d, KEY_MUTE },
+ { 0x10, KEY_VOLUMEUP },
+ { 0x11, KEY_VOLUMEDOWN },
+ { 0x20, KEY_CHANNELUP },
+ { 0x21, KEY_CHANNELDOWN },
+ { 0x28, KEY_FORWARD },
+ { 0x29, KEY_REWIND },
+ { 0x2c, KEY_PLAY },
+ { 0x30, KEY_PAUSE },
+ { 0x31, KEY_STOP },
+ { 0x37, KEY_RECORD },
+ { 0x38, KEY_DVD },
+ { 0x39, KEY_TV },
+ { 0x3f, KEY_PROG1 }, /* AUX1-AUX4 and PC */
+ { 0x54, KEY_MENU },
+ { 0x58, KEY_UP },
+ { 0x59, KEY_DOWN },
+ { 0x5a, KEY_LEFT },
+ { 0x5b, KEY_RIGHT },
+ { 0x5c, KEY_OK },
+ { 0x78, KEY_A },
+ { 0x79, KEY_B },
+ { 0x7a, KEY_C },
+ { 0x7b, KEY_D },
+ { 0x7c, KEY_E },
+ { 0x7d, KEY_F },
+ { 0x82, KEY_ENTER },
+ { 0x8e, KEY_VENDOR },
+ { 0x96, KEY_COFFEE },
+ { 0xa9, BTN_LEFT },
+ { 0xaa, BTN_RIGHT },
+ { 0xbe, KEY_QUESTION },
+ { 0xd0, KEY_EDIT },
+ { 0xd5, KEY_FRONT },
+ { 0xf9, KEY_INFO },
+};
+
+struct ati_remote2 {
+ struct input_dev *idev;
+ struct usb_device *udev;
+
+ struct usb_interface *intf[2];
+ struct usb_endpoint_descriptor *ep[2];
+ struct urb *urb[2];
+ void *buf[2];
+ dma_addr_t buf_dma[2];
+
+ unsigned long jiffies;
+ int mode;
+
+ char name[64];
+ char phys[64];
+
+ /* Each mode (AUX1-AUX4 and PC) can have an independent keymap. */
+ u16 keycode[ATI_REMOTE2_MODES][ARRAY_SIZE(ati_remote2_key_table)];
+
+ unsigned int flags;
+
+ unsigned int channel_mask;
+ unsigned int mode_mask;
+};
+
+static int ati_remote2_probe(struct usb_interface *interface, const struct usb_device_id *id);
+static void ati_remote2_disconnect(struct usb_interface *interface);
+static int ati_remote2_suspend(struct usb_interface *interface, pm_message_t message);
+static int ati_remote2_resume(struct usb_interface *interface);
+static int ati_remote2_reset_resume(struct usb_interface *interface);
+static int ati_remote2_pre_reset(struct usb_interface *interface);
+static int ati_remote2_post_reset(struct usb_interface *interface);
+
+static struct usb_driver ati_remote2_driver = {
+ .name = "ati_remote2",
+ .probe = ati_remote2_probe,
+ .disconnect = ati_remote2_disconnect,
+ .id_table = ati_remote2_id_table,
+ .suspend = ati_remote2_suspend,
+ .resume = ati_remote2_resume,
+ .reset_resume = ati_remote2_reset_resume,
+ .pre_reset = ati_remote2_pre_reset,
+ .post_reset = ati_remote2_post_reset,
+ .supports_autosuspend = 1,
+};
+
+static int ati_remote2_submit_urbs(struct ati_remote2 *ar2)
+{
+ int r;
+
+ r = usb_submit_urb(ar2->urb[0], GFP_KERNEL);
+ if (r) {
+ dev_err(&ar2->intf[0]->dev,
+ "%s(): usb_submit_urb() = %d\n", __func__, r);
+ return r;
+ }
+ r = usb_submit_urb(ar2->urb[1], GFP_KERNEL);
+ if (r) {
+ usb_kill_urb(ar2->urb[0]);
+ dev_err(&ar2->intf[1]->dev,
+ "%s(): usb_submit_urb() = %d\n", __func__, r);
+ return r;
+ }
+
+ return 0;
+}
+
+static void ati_remote2_kill_urbs(struct ati_remote2 *ar2)
+{
+ usb_kill_urb(ar2->urb[1]);
+ usb_kill_urb(ar2->urb[0]);
+}
+
+static int ati_remote2_open(struct input_dev *idev)
+{
+ struct ati_remote2 *ar2 = input_get_drvdata(idev);
+ int r;
+
+ dev_dbg(&ar2->intf[0]->dev, "%s()\n", __func__);
+
+ r = usb_autopm_get_interface(ar2->intf[0]);
+ if (r) {
+ dev_err(&ar2->intf[0]->dev,
+ "%s(): usb_autopm_get_interface() = %d\n", __func__, r);
+ goto fail1;
+ }
+
+ mutex_lock(&ati_remote2_mutex);
+
+ if (!(ar2->flags & ATI_REMOTE2_SUSPENDED)) {
+ r = ati_remote2_submit_urbs(ar2);
+ if (r)
+ goto fail2;
+ }
+
+ ar2->flags |= ATI_REMOTE2_OPENED;
+
+ mutex_unlock(&ati_remote2_mutex);
+
+ usb_autopm_put_interface(ar2->intf[0]);
+
+ return 0;
+
+ fail2:
+ mutex_unlock(&ati_remote2_mutex);
+ usb_autopm_put_interface(ar2->intf[0]);
+ fail1:
+ return r;
+}
+
+static void ati_remote2_close(struct input_dev *idev)
+{
+ struct ati_remote2 *ar2 = input_get_drvdata(idev);
+
+ dev_dbg(&ar2->intf[0]->dev, "%s()\n", __func__);
+
+ mutex_lock(&ati_remote2_mutex);
+
+ if (!(ar2->flags & ATI_REMOTE2_SUSPENDED))
+ ati_remote2_kill_urbs(ar2);
+
+ ar2->flags &= ~ATI_REMOTE2_OPENED;
+
+ mutex_unlock(&ati_remote2_mutex);
+}
+
+static void ati_remote2_input_mouse(struct ati_remote2 *ar2)
+{
+ struct input_dev *idev = ar2->idev;
+ u8 *data = ar2->buf[0];
+ int channel, mode;
+
+ channel = data[0] >> 4;
+
+ if (!((1 << channel) & ar2->channel_mask))
+ return;
+
+ mode = data[0] & 0x0F;
+
+ if (mode > ATI_REMOTE2_PC) {
+ dev_err(&ar2->intf[0]->dev,
+ "Unknown mode byte (%02x %02x %02x %02x)\n",
+ data[3], data[2], data[1], data[0]);
+ return;
+ }
+
+ if (!((1 << mode) & ar2->mode_mask))
+ return;
+
+ input_event(idev, EV_REL, REL_X, (s8) data[1]);
+ input_event(idev, EV_REL, REL_Y, (s8) data[2]);
+ input_sync(idev);
+}
+
+static int ati_remote2_lookup(unsigned int hw_code)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(ati_remote2_key_table); i++)
+ if (ati_remote2_key_table[i].hw_code == hw_code)
+ return i;
+
+ return -1;
+}
+
+static void ati_remote2_input_key(struct ati_remote2 *ar2)
+{
+ struct input_dev *idev = ar2->idev;
+ u8 *data = ar2->buf[1];
+ int channel, mode, hw_code, index;
+
+ channel = data[0] >> 4;
+
+ if (!((1 << channel) & ar2->channel_mask))
+ return;
+
+ mode = data[0] & 0x0F;
+
+ if (mode > ATI_REMOTE2_PC) {
+ dev_err(&ar2->intf[1]->dev,
+ "Unknown mode byte (%02x %02x %02x %02x)\n",
+ data[3], data[2], data[1], data[0]);
+ return;
+ }
+
+ hw_code = data[2];
+ if (hw_code == 0x3f) {
+ /*
+ * For some incomprehensible reason the mouse pad generates
+ * events which look identical to the events from the last
+ * pressed mode key. Naturally we don't want to generate key
+ * events for the mouse pad so we filter out any subsequent
+ * events from the same mode key.
+ */
+ if (ar2->mode == mode)
+ return;
+
+ if (data[1] == 0)
+ ar2->mode = mode;
+ }
+
+ if (!((1 << mode) & ar2->mode_mask))
+ return;
+
+ index = ati_remote2_lookup(hw_code);
+ if (index < 0) {
+ dev_err(&ar2->intf[1]->dev,
+ "Unknown code byte (%02x %02x %02x %02x)\n",
+ data[3], data[2], data[1], data[0]);
+ return;
+ }
+
+ switch (data[1]) {
+ case 0: /* release */
+ break;
+ case 1: /* press */
+ ar2->jiffies = jiffies + msecs_to_jiffies(idev->rep[REP_DELAY]);
+ break;
+ case 2: /* repeat */
+
+ /* No repeat for mouse buttons. */
+ if (ar2->keycode[mode][index] == BTN_LEFT ||
+ ar2->keycode[mode][index] == BTN_RIGHT)
+ return;
+
+ if (!time_after_eq(jiffies, ar2->jiffies))
+ return;
+
+ ar2->jiffies = jiffies + msecs_to_jiffies(idev->rep[REP_PERIOD]);
+ break;
+ default:
+ dev_err(&ar2->intf[1]->dev,
+ "Unknown state byte (%02x %02x %02x %02x)\n",
+ data[3], data[2], data[1], data[0]);
+ return;
+ }
+
+ input_event(idev, EV_KEY, ar2->keycode[mode][index], data[1]);
+ input_sync(idev);
+}
+
+static void ati_remote2_complete_mouse(struct urb *urb)
+{
+ struct ati_remote2 *ar2 = urb->context;
+ int r;
+
+ switch (urb->status) {
+ case 0:
+ usb_mark_last_busy(ar2->udev);
+ ati_remote2_input_mouse(ar2);
+ break;
+ case -ENOENT:
+ case -EILSEQ:
+ case -ECONNRESET:
+ case -ESHUTDOWN:
+ dev_dbg(&ar2->intf[0]->dev,
+ "%s(): urb status = %d\n", __func__, urb->status);
+ return;
+ default:
+ usb_mark_last_busy(ar2->udev);
+ dev_err(&ar2->intf[0]->dev,
+ "%s(): urb status = %d\n", __func__, urb->status);
+ }
+
+ r = usb_submit_urb(urb, GFP_ATOMIC);
+ if (r)
+ dev_err(&ar2->intf[0]->dev,
+ "%s(): usb_submit_urb() = %d\n", __func__, r);
+}
+
+static void ati_remote2_complete_key(struct urb *urb)
+{
+ struct ati_remote2 *ar2 = urb->context;
+ int r;
+
+ switch (urb->status) {
+ case 0:
+ usb_mark_last_busy(ar2->udev);
+ ati_remote2_input_key(ar2);
+ break;
+ case -ENOENT:
+ case -EILSEQ:
+ case -ECONNRESET:
+ case -ESHUTDOWN:
+ dev_dbg(&ar2->intf[1]->dev,
+ "%s(): urb status = %d\n", __func__, urb->status);
+ return;
+ default:
+ usb_mark_last_busy(ar2->udev);
+ dev_err(&ar2->intf[1]->dev,
+ "%s(): urb status = %d\n", __func__, urb->status);
+ }
+
+ r = usb_submit_urb(urb, GFP_ATOMIC);
+ if (r)
+ dev_err(&ar2->intf[1]->dev,
+ "%s(): usb_submit_urb() = %d\n", __func__, r);
+}
+
+static int ati_remote2_getkeycode(struct input_dev *idev,
+ struct input_keymap_entry *ke)
+{
+ struct ati_remote2 *ar2 = input_get_drvdata(idev);
+ unsigned int mode;
+ int offset;
+ unsigned int index;
+ unsigned int scancode;
+
+ if (ke->flags & INPUT_KEYMAP_BY_INDEX) {
+ index = ke->index;
+ if (index >= ATI_REMOTE2_MODES *
+ ARRAY_SIZE(ati_remote2_key_table))
+ return -EINVAL;
+
+ mode = ke->index / ARRAY_SIZE(ati_remote2_key_table);
+ offset = ke->index % ARRAY_SIZE(ati_remote2_key_table);
+ scancode = (mode << 8) + ati_remote2_key_table[offset].hw_code;
+ } else {
+ if (input_scancode_to_scalar(ke, &scancode))
+ return -EINVAL;
+
+ mode = scancode >> 8;
+ if (mode > ATI_REMOTE2_PC)
+ return -EINVAL;
+
+ offset = ati_remote2_lookup(scancode & 0xff);
+ if (offset < 0)
+ return -EINVAL;
+
+ index = mode * ARRAY_SIZE(ati_remote2_key_table) + offset;
+ }
+
+ ke->keycode = ar2->keycode[mode][offset];
+ ke->len = sizeof(scancode);
+ memcpy(&ke->scancode, &scancode, sizeof(scancode));
+ ke->index = index;
+
+ return 0;
+}
+
+static int ati_remote2_setkeycode(struct input_dev *idev,
+ const struct input_keymap_entry *ke,
+ unsigned int *old_keycode)
+{
+ struct ati_remote2 *ar2 = input_get_drvdata(idev);
+ unsigned int mode;
+ int offset;
+ unsigned int index;
+ unsigned int scancode;
+
+ if (ke->flags & INPUT_KEYMAP_BY_INDEX) {
+ if (ke->index >= ATI_REMOTE2_MODES *
+ ARRAY_SIZE(ati_remote2_key_table))
+ return -EINVAL;
+
+ mode = ke->index / ARRAY_SIZE(ati_remote2_key_table);
+ offset = ke->index % ARRAY_SIZE(ati_remote2_key_table);
+ } else {
+ if (input_scancode_to_scalar(ke, &scancode))
+ return -EINVAL;
+
+ mode = scancode >> 8;
+ if (mode > ATI_REMOTE2_PC)
+ return -EINVAL;
+
+ offset = ati_remote2_lookup(scancode & 0xff);
+ if (offset < 0)
+ return -EINVAL;
+ }
+
+ *old_keycode = ar2->keycode[mode][offset];
+ ar2->keycode[mode][offset] = ke->keycode;
+ __set_bit(ke->keycode, idev->keybit);
+
+ for (mode = 0; mode < ATI_REMOTE2_MODES; mode++) {
+ for (index = 0; index < ARRAY_SIZE(ati_remote2_key_table); index++) {
+ if (ar2->keycode[mode][index] == *old_keycode)
+ return 0;
+ }
+ }
+
+ __clear_bit(*old_keycode, idev->keybit);
+
+ return 0;
+}
+
+static int ati_remote2_input_init(struct ati_remote2 *ar2)
+{
+ struct input_dev *idev;
+ int index, mode, retval;
+
+ idev = input_allocate_device();
+ if (!idev)
+ return -ENOMEM;
+
+ ar2->idev = idev;
+ input_set_drvdata(idev, ar2);
+
+ idev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP) | BIT_MASK(EV_REL);
+ idev->keybit[BIT_WORD(BTN_MOUSE)] = BIT_MASK(BTN_LEFT) |
+ BIT_MASK(BTN_RIGHT);
+ idev->relbit[0] = BIT_MASK(REL_X) | BIT_MASK(REL_Y);
+
+ for (mode = 0; mode < ATI_REMOTE2_MODES; mode++) {
+ for (index = 0; index < ARRAY_SIZE(ati_remote2_key_table); index++) {
+ ar2->keycode[mode][index] = ati_remote2_key_table[index].keycode;
+ __set_bit(ar2->keycode[mode][index], idev->keybit);
+ }
+ }
+
+ /* AUX1-AUX4 and PC generate the same scancode. */
+ index = ati_remote2_lookup(0x3f);
+ ar2->keycode[ATI_REMOTE2_AUX1][index] = KEY_PROG1;
+ ar2->keycode[ATI_REMOTE2_AUX2][index] = KEY_PROG2;
+ ar2->keycode[ATI_REMOTE2_AUX3][index] = KEY_PROG3;
+ ar2->keycode[ATI_REMOTE2_AUX4][index] = KEY_PROG4;
+ ar2->keycode[ATI_REMOTE2_PC][index] = KEY_PC;
+ __set_bit(KEY_PROG1, idev->keybit);
+ __set_bit(KEY_PROG2, idev->keybit);
+ __set_bit(KEY_PROG3, idev->keybit);
+ __set_bit(KEY_PROG4, idev->keybit);
+ __set_bit(KEY_PC, idev->keybit);
+
+ idev->rep[REP_DELAY] = 250;
+ idev->rep[REP_PERIOD] = 33;
+
+ idev->open = ati_remote2_open;
+ idev->close = ati_remote2_close;
+
+ idev->getkeycode = ati_remote2_getkeycode;
+ idev->setkeycode = ati_remote2_setkeycode;
+
+ idev->name = ar2->name;
+ idev->phys = ar2->phys;
+
+ usb_to_input_id(ar2->udev, &idev->id);
+ idev->dev.parent = &ar2->udev->dev;
+
+ retval = input_register_device(idev);
+ if (retval)
+ input_free_device(idev);
+
+ return retval;
+}
+
+static int ati_remote2_urb_init(struct ati_remote2 *ar2)
+{
+ struct usb_device *udev = ar2->udev;
+ int i, pipe, maxp;
+
+ for (i = 0; i < 2; i++) {
+ ar2->buf[i] = usb_alloc_coherent(udev, 4, GFP_KERNEL, &ar2->buf_dma[i]);
+ if (!ar2->buf[i])
+ return -ENOMEM;
+
+ ar2->urb[i] = usb_alloc_urb(0, GFP_KERNEL);
+ if (!ar2->urb[i])
+ return -ENOMEM;
+
+ pipe = usb_rcvintpipe(udev, ar2->ep[i]->bEndpointAddress);
+ maxp = usb_maxpacket(udev, pipe, usb_pipeout(pipe));
+ maxp = maxp > 4 ? 4 : maxp;
+
+ usb_fill_int_urb(ar2->urb[i], udev, pipe, ar2->buf[i], maxp,
+ i ? ati_remote2_complete_key : ati_remote2_complete_mouse,
+ ar2, ar2->ep[i]->bInterval);
+ ar2->urb[i]->transfer_dma = ar2->buf_dma[i];
+ ar2->urb[i]->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
+ }
+
+ return 0;
+}
+
+static void ati_remote2_urb_cleanup(struct ati_remote2 *ar2)
+{
+ int i;
+
+ for (i = 0; i < 2; i++) {
+ usb_free_urb(ar2->urb[i]);
+ usb_free_coherent(ar2->udev, 4, ar2->buf[i], ar2->buf_dma[i]);
+ }
+}
+
+static int ati_remote2_setup(struct ati_remote2 *ar2, unsigned int ch_mask)
+{
+ int r, i, channel;
+
+ /*
+ * Configure receiver to only accept input from remote "channel"
+ * channel == 0 -> Accept input from any remote channel
+ * channel == 1 -> Only accept input from remote channel 1
+ * channel == 2 -> Only accept input from remote channel 2
+ * ...
+ * channel == 16 -> Only accept input from remote channel 16
+ */
+
+ channel = 0;
+ for (i = 0; i < 16; i++) {
+ if ((1 << i) & ch_mask) {
+ if (!(~(1 << i) & ch_mask))
+ channel = i + 1;
+ break;
+ }
+ }
+
+ r = usb_control_msg(ar2->udev, usb_sndctrlpipe(ar2->udev, 0),
+ 0x20,
+ USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_INTERFACE,
+ channel, 0x0, NULL, 0, USB_CTRL_SET_TIMEOUT);
+ if (r) {
+ dev_err(&ar2->udev->dev, "%s - failed to set channel due to error: %d\n",
+ __func__, r);
+ return r;
+ }
+
+ return 0;
+}
+
+static ssize_t ati_remote2_show_channel_mask(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct usb_device *udev = to_usb_device(dev);
+ struct usb_interface *intf = usb_ifnum_to_if(udev, 0);
+ struct ati_remote2 *ar2 = usb_get_intfdata(intf);
+
+ return sprintf(buf, "0x%04x\n", ar2->channel_mask);
+}
+
+static ssize_t ati_remote2_store_channel_mask(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct usb_device *udev = to_usb_device(dev);
+ struct usb_interface *intf = usb_ifnum_to_if(udev, 0);
+ struct ati_remote2 *ar2 = usb_get_intfdata(intf);
+ unsigned long mask;
+ int r;
+
+ if (strict_strtoul(buf, 0, &mask))
+ return -EINVAL;
+
+ if (mask & ~ATI_REMOTE2_MAX_CHANNEL_MASK)
+ return -EINVAL;
+
+ r = usb_autopm_get_interface(ar2->intf[0]);
+ if (r) {
+ dev_err(&ar2->intf[0]->dev,
+ "%s(): usb_autopm_get_interface() = %d\n", __func__, r);
+ return r;
+ }
+
+ mutex_lock(&ati_remote2_mutex);
+
+ if (mask != ar2->channel_mask) {
+ r = ati_remote2_setup(ar2, mask);
+ if (!r)
+ ar2->channel_mask = mask;
+ }
+
+ mutex_unlock(&ati_remote2_mutex);
+
+ usb_autopm_put_interface(ar2->intf[0]);
+
+ return r ? r : count;
+}
+
+static ssize_t ati_remote2_show_mode_mask(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct usb_device *udev = to_usb_device(dev);
+ struct usb_interface *intf = usb_ifnum_to_if(udev, 0);
+ struct ati_remote2 *ar2 = usb_get_intfdata(intf);
+
+ return sprintf(buf, "0x%02x\n", ar2->mode_mask);
+}
+
+static ssize_t ati_remote2_store_mode_mask(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct usb_device *udev = to_usb_device(dev);
+ struct usb_interface *intf = usb_ifnum_to_if(udev, 0);
+ struct ati_remote2 *ar2 = usb_get_intfdata(intf);
+ unsigned long mask;
+
+ if (strict_strtoul(buf, 0, &mask))
+ return -EINVAL;
+
+ if (mask & ~ATI_REMOTE2_MAX_MODE_MASK)
+ return -EINVAL;
+
+ ar2->mode_mask = mask;
+
+ return count;
+}
+
+static DEVICE_ATTR(channel_mask, 0644, ati_remote2_show_channel_mask,
+ ati_remote2_store_channel_mask);
+
+static DEVICE_ATTR(mode_mask, 0644, ati_remote2_show_mode_mask,
+ ati_remote2_store_mode_mask);
+
+static struct attribute *ati_remote2_attrs[] = {
+ &dev_attr_channel_mask.attr,
+ &dev_attr_mode_mask.attr,
+ NULL,
+};
+
+static struct attribute_group ati_remote2_attr_group = {
+ .attrs = ati_remote2_attrs,
+};
+
+static int ati_remote2_probe(struct usb_interface *interface, const struct usb_device_id *id)
+{
+ struct usb_device *udev = interface_to_usbdev(interface);
+ struct usb_host_interface *alt = interface->cur_altsetting;
+ struct ati_remote2 *ar2;
+ int r;
+
+ if (alt->desc.bInterfaceNumber)
+ return -ENODEV;
+
+ ar2 = kzalloc(sizeof (struct ati_remote2), GFP_KERNEL);
+ if (!ar2)
+ return -ENOMEM;
+
+ ar2->udev = udev;
+
+ ar2->intf[0] = interface;
+ ar2->ep[0] = &alt->endpoint[0].desc;
+
+ ar2->intf[1] = usb_ifnum_to_if(udev, 1);
+ r = usb_driver_claim_interface(&ati_remote2_driver, ar2->intf[1], ar2);
+ if (r)
+ goto fail1;
+ alt = ar2->intf[1]->cur_altsetting;
+ ar2->ep[1] = &alt->endpoint[0].desc;
+
+ r = ati_remote2_urb_init(ar2);
+ if (r)
+ goto fail2;
+
+ ar2->channel_mask = channel_mask;
+ ar2->mode_mask = mode_mask;
+
+ r = ati_remote2_setup(ar2, ar2->channel_mask);
+ if (r)
+ goto fail2;
+
+ usb_make_path(udev, ar2->phys, sizeof(ar2->phys));
+ strlcat(ar2->phys, "/input0", sizeof(ar2->phys));
+
+ strlcat(ar2->name, "ATI Remote Wonder II", sizeof(ar2->name));
+
+ r = sysfs_create_group(&udev->dev.kobj, &ati_remote2_attr_group);
+ if (r)
+ goto fail2;
+
+ r = ati_remote2_input_init(ar2);
+ if (r)
+ goto fail3;
+
+ usb_set_intfdata(interface, ar2);
+
+ interface->needs_remote_wakeup = 1;
+
+ return 0;
+
+ fail3:
+ sysfs_remove_group(&udev->dev.kobj, &ati_remote2_attr_group);
+ fail2:
+ ati_remote2_urb_cleanup(ar2);
+ usb_driver_release_interface(&ati_remote2_driver, ar2->intf[1]);
+ fail1:
+ kfree(ar2);
+
+ return r;
+}
+
+static void ati_remote2_disconnect(struct usb_interface *interface)
+{
+ struct ati_remote2 *ar2;
+ struct usb_host_interface *alt = interface->cur_altsetting;
+
+ if (alt->desc.bInterfaceNumber)
+ return;
+
+ ar2 = usb_get_intfdata(interface);
+ usb_set_intfdata(interface, NULL);
+
+ input_unregister_device(ar2->idev);
+
+ sysfs_remove_group(&ar2->udev->dev.kobj, &ati_remote2_attr_group);
+
+ ati_remote2_urb_cleanup(ar2);
+
+ usb_driver_release_interface(&ati_remote2_driver, ar2->intf[1]);
+
+ kfree(ar2);
+}
+
+static int ati_remote2_suspend(struct usb_interface *interface,
+ pm_message_t message)
+{
+ struct ati_remote2 *ar2;
+ struct usb_host_interface *alt = interface->cur_altsetting;
+
+ if (alt->desc.bInterfaceNumber)
+ return 0;
+
+ ar2 = usb_get_intfdata(interface);
+
+ dev_dbg(&ar2->intf[0]->dev, "%s()\n", __func__);
+
+ mutex_lock(&ati_remote2_mutex);
+
+ if (ar2->flags & ATI_REMOTE2_OPENED)
+ ati_remote2_kill_urbs(ar2);
+
+ ar2->flags |= ATI_REMOTE2_SUSPENDED;
+
+ mutex_unlock(&ati_remote2_mutex);
+
+ return 0;
+}
+
+static int ati_remote2_resume(struct usb_interface *interface)
+{
+ struct ati_remote2 *ar2;
+ struct usb_host_interface *alt = interface->cur_altsetting;
+ int r = 0;
+
+ if (alt->desc.bInterfaceNumber)
+ return 0;
+
+ ar2 = usb_get_intfdata(interface);
+
+ dev_dbg(&ar2->intf[0]->dev, "%s()\n", __func__);
+
+ mutex_lock(&ati_remote2_mutex);
+
+ if (ar2->flags & ATI_REMOTE2_OPENED)
+ r = ati_remote2_submit_urbs(ar2);
+
+ if (!r)
+ ar2->flags &= ~ATI_REMOTE2_SUSPENDED;
+
+ mutex_unlock(&ati_remote2_mutex);
+
+ return r;
+}
+
+static int ati_remote2_reset_resume(struct usb_interface *interface)
+{
+ struct ati_remote2 *ar2;
+ struct usb_host_interface *alt = interface->cur_altsetting;
+ int r = 0;
+
+ if (alt->desc.bInterfaceNumber)
+ return 0;
+
+ ar2 = usb_get_intfdata(interface);
+
+ dev_dbg(&ar2->intf[0]->dev, "%s()\n", __func__);
+
+ mutex_lock(&ati_remote2_mutex);
+
+ r = ati_remote2_setup(ar2, ar2->channel_mask);
+ if (r)
+ goto out;
+
+ if (ar2->flags & ATI_REMOTE2_OPENED)
+ r = ati_remote2_submit_urbs(ar2);
+
+ if (!r)
+ ar2->flags &= ~ATI_REMOTE2_SUSPENDED;
+
+ out:
+ mutex_unlock(&ati_remote2_mutex);
+
+ return r;
+}
+
+static int ati_remote2_pre_reset(struct usb_interface *interface)
+{
+ struct ati_remote2 *ar2;
+ struct usb_host_interface *alt = interface->cur_altsetting;
+
+ if (alt->desc.bInterfaceNumber)
+ return 0;
+
+ ar2 = usb_get_intfdata(interface);
+
+ dev_dbg(&ar2->intf[0]->dev, "%s()\n", __func__);
+
+ mutex_lock(&ati_remote2_mutex);
+
+ if (ar2->flags == ATI_REMOTE2_OPENED)
+ ati_remote2_kill_urbs(ar2);
+
+ return 0;
+}
+
+static int ati_remote2_post_reset(struct usb_interface *interface)
+{
+ struct ati_remote2 *ar2;
+ struct usb_host_interface *alt = interface->cur_altsetting;
+ int r = 0;
+
+ if (alt->desc.bInterfaceNumber)
+ return 0;
+
+ ar2 = usb_get_intfdata(interface);
+
+ dev_dbg(&ar2->intf[0]->dev, "%s()\n", __func__);
+
+ if (ar2->flags == ATI_REMOTE2_OPENED)
+ r = ati_remote2_submit_urbs(ar2);
+
+ mutex_unlock(&ati_remote2_mutex);
+
+ return r;
+}
+
+static int __init ati_remote2_init(void)
+{
+ int r;
+
+ r = usb_register(&ati_remote2_driver);
+ if (r)
+ printk(KERN_ERR "ati_remote2: usb_register() = %d\n", r);
+ else
+ printk(KERN_INFO "ati_remote2: " DRIVER_DESC " " DRIVER_VERSION "\n");
+
+ return r;
+}
+
+static void __exit ati_remote2_exit(void)
+{
+ usb_deregister(&ati_remote2_driver);
+}
+
+module_init(ati_remote2_init);
+module_exit(ati_remote2_exit);
diff --git a/drivers/input/misc/atlas_btns.c b/drivers/input/misc/atlas_btns.c
new file mode 100644
index 0000000..601f737
--- /dev/null
+++ b/drivers/input/misc/atlas_btns.c
@@ -0,0 +1,174 @@
+/*
+ * atlas_btns.c - Atlas Wallmount Touchscreen ACPI Extras
+ *
+ * Copyright (C) 2006 Jaya Kumar
+ * Based on Toshiba ACPI by John Belmonte and ASUS ACPI
+ * This work was sponsored by CIS(M) Sdn Bhd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/input.h>
+#include <linux/types.h>
+#include <asm/uaccess.h>
+#include <acpi/acpi_drivers.h>
+
+#define ACPI_ATLAS_NAME "Atlas ACPI"
+#define ACPI_ATLAS_CLASS "Atlas"
+
+static unsigned short atlas_keymap[16];
+static struct input_dev *input_dev;
+
+/* button handling code */
+static acpi_status acpi_atlas_button_setup(acpi_handle region_handle,
+ u32 function, void *handler_context, void **return_context)
+{
+ *return_context =
+ (function != ACPI_REGION_DEACTIVATE) ? handler_context : NULL;
+
+ return AE_OK;
+}
+
+static acpi_status acpi_atlas_button_handler(u32 function,
+ acpi_physical_address address,
+ u32 bit_width, u64 *value,
+ void *handler_context, void *region_context)
+{
+ acpi_status status;
+
+ if (function == ACPI_WRITE) {
+ int code = address & 0x0f;
+ int key_down = !(address & 0x10);
+
+ input_event(input_dev, EV_MSC, MSC_SCAN, code);
+ input_report_key(input_dev, atlas_keymap[code], key_down);
+ input_sync(input_dev);
+
+ status = AE_OK;
+ } else {
+ pr_warn("shrugged on unexpected function: function=%x,address=%lx,value=%x\n",
+ function, (unsigned long)address, (u32)*value);
+ status = AE_BAD_PARAMETER;
+ }
+
+ return status;
+}
+
+static int atlas_acpi_button_add(struct acpi_device *device)
+{
+ acpi_status status;
+ int i;
+ int err;
+
+ input_dev = input_allocate_device();
+ if (!input_dev) {
+ pr_err("unable to allocate input device\n");
+ return -ENOMEM;
+ }
+
+ input_dev->name = "Atlas ACPI button driver";
+ input_dev->phys = "ASIM0000/atlas/input0";
+ input_dev->id.bustype = BUS_HOST;
+ input_dev->keycode = atlas_keymap;
+ input_dev->keycodesize = sizeof(unsigned short);
+ input_dev->keycodemax = ARRAY_SIZE(atlas_keymap);
+
+ input_set_capability(input_dev, EV_MSC, MSC_SCAN);
+ __set_bit(EV_KEY, input_dev->evbit);
+ for (i = 0; i < ARRAY_SIZE(atlas_keymap); i++) {
+ if (i < 9) {
+ atlas_keymap[i] = KEY_F1 + i;
+ __set_bit(KEY_F1 + i, input_dev->keybit);
+ } else
+ atlas_keymap[i] = KEY_RESERVED;
+ }
+
+ err = input_register_device(input_dev);
+ if (err) {
+ pr_err("couldn't register input device\n");
+ input_free_device(input_dev);
+ return err;
+ }
+
+ /* hookup button handler */
+ status = acpi_install_address_space_handler(device->handle,
+ 0x81, &acpi_atlas_button_handler,
+ &acpi_atlas_button_setup, device);
+ if (ACPI_FAILURE(status)) {
+ pr_err("error installing addr spc handler\n");
+ input_unregister_device(input_dev);
+ err = -EINVAL;
+ }
+
+ return err;
+}
+
+static int atlas_acpi_button_remove(struct acpi_device *device, int type)
+{
+ acpi_status status;
+
+ status = acpi_remove_address_space_handler(device->handle,
+ 0x81, &acpi_atlas_button_handler);
+ if (ACPI_FAILURE(status))
+ pr_err("error removing addr spc handler\n");
+
+ input_unregister_device(input_dev);
+
+ return 0;
+}
+
+static const struct acpi_device_id atlas_device_ids[] = {
+ {"ASIM0000", 0},
+ {"", 0},
+};
+MODULE_DEVICE_TABLE(acpi, atlas_device_ids);
+
+static struct acpi_driver atlas_acpi_driver = {
+ .name = ACPI_ATLAS_NAME,
+ .class = ACPI_ATLAS_CLASS,
+ .owner = THIS_MODULE,
+ .ids = atlas_device_ids,
+ .ops = {
+ .add = atlas_acpi_button_add,
+ .remove = atlas_acpi_button_remove,
+ },
+};
+
+static int __init atlas_acpi_init(void)
+{
+ if (acpi_disabled)
+ return -ENODEV;
+
+ return acpi_bus_register_driver(&atlas_acpi_driver);
+}
+
+static void __exit atlas_acpi_exit(void)
+{
+ acpi_bus_unregister_driver(&atlas_acpi_driver);
+}
+
+module_init(atlas_acpi_init);
+module_exit(atlas_acpi_exit);
+
+MODULE_AUTHOR("Jaya Kumar");
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("Atlas button driver");
+
diff --git a/drivers/input/misc/bfin_rotary.c b/drivers/input/misc/bfin_rotary.c
new file mode 100644
index 0000000..d00edc9
--- /dev/null
+++ b/drivers/input/misc/bfin_rotary.c
@@ -0,0 +1,283 @@
+/*
+ * Rotary counter driver for Analog Devices Blackfin Processors
+ *
+ * Copyright 2008-2009 Analog Devices Inc.
+ * Licensed under the GPL-2 or later.
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/pm.h>
+#include <linux/platform_device.h>
+#include <linux/input.h>
+#include <linux/slab.h>
+
+#include <asm/portmux.h>
+#include <asm/bfin_rotary.h>
+
+static const u16 per_cnt[] = {
+ P_CNT_CUD,
+ P_CNT_CDG,
+ P_CNT_CZM,
+ 0
+};
+
+struct bfin_rot {
+ struct input_dev *input;
+ int irq;
+ unsigned int up_key;
+ unsigned int down_key;
+ unsigned int button_key;
+ unsigned int rel_code;
+ unsigned short cnt_config;
+ unsigned short cnt_imask;
+ unsigned short cnt_debounce;
+};
+
+static void report_key_event(struct input_dev *input, int keycode)
+{
+ /* simulate a press-n-release */
+ input_report_key(input, keycode, 1);
+ input_sync(input);
+ input_report_key(input, keycode, 0);
+ input_sync(input);
+}
+
+static void report_rotary_event(struct bfin_rot *rotary, int delta)
+{
+ struct input_dev *input = rotary->input;
+
+ if (rotary->up_key) {
+ report_key_event(input,
+ delta > 0 ? rotary->up_key : rotary->down_key);
+ } else {
+ input_report_rel(input, rotary->rel_code, delta);
+ input_sync(input);
+ }
+}
+
+static irqreturn_t bfin_rotary_isr(int irq, void *dev_id)
+{
+ struct platform_device *pdev = dev_id;
+ struct bfin_rot *rotary = platform_get_drvdata(pdev);
+ int delta;
+
+ switch (bfin_read_CNT_STATUS()) {
+
+ case ICII:
+ break;
+
+ case UCII:
+ case DCII:
+ delta = bfin_read_CNT_COUNTER();
+ if (delta)
+ report_rotary_event(rotary, delta);
+ break;
+
+ case CZMII:
+ report_key_event(rotary->input, rotary->button_key);
+ break;
+
+ default:
+ break;
+ }
+
+ bfin_write_CNT_COMMAND(W1LCNT_ZERO); /* Clear COUNTER */
+ bfin_write_CNT_STATUS(-1); /* Clear STATUS */
+
+ return IRQ_HANDLED;
+}
+
+static int __devinit bfin_rotary_probe(struct platform_device *pdev)
+{
+ struct bfin_rotary_platform_data *pdata = pdev->dev.platform_data;
+ struct bfin_rot *rotary;
+ struct input_dev *input;
+ int error;
+
+ /* Basic validation */
+ if ((pdata->rotary_up_key && !pdata->rotary_down_key) ||
+ (!pdata->rotary_up_key && pdata->rotary_down_key)) {
+ return -EINVAL;
+ }
+
+ error = peripheral_request_list(per_cnt, dev_name(&pdev->dev));
+ if (error) {
+ dev_err(&pdev->dev, "requesting peripherals failed\n");
+ return error;
+ }
+
+ rotary = kzalloc(sizeof(struct bfin_rot), GFP_KERNEL);
+ input = input_allocate_device();
+ if (!rotary || !input) {
+ error = -ENOMEM;
+ goto out1;
+ }
+
+ rotary->input = input;
+
+ rotary->up_key = pdata->rotary_up_key;
+ rotary->down_key = pdata->rotary_down_key;
+ rotary->button_key = pdata->rotary_button_key;
+ rotary->rel_code = pdata->rotary_rel_code;
+
+ error = rotary->irq = platform_get_irq(pdev, 0);
+ if (error < 0)
+ goto out1;
+
+ input->name = pdev->name;
+ input->phys = "bfin-rotary/input0";
+ input->dev.parent = &pdev->dev;
+
+ input_set_drvdata(input, rotary);
+
+ input->id.bustype = BUS_HOST;
+ input->id.vendor = 0x0001;
+ input->id.product = 0x0001;
+ input->id.version = 0x0100;
+
+ if (rotary->up_key) {
+ __set_bit(EV_KEY, input->evbit);
+ __set_bit(rotary->up_key, input->keybit);
+ __set_bit(rotary->down_key, input->keybit);
+ } else {
+ __set_bit(EV_REL, input->evbit);
+ __set_bit(rotary->rel_code, input->relbit);
+ }
+
+ if (rotary->button_key) {
+ __set_bit(EV_KEY, input->evbit);
+ __set_bit(rotary->button_key, input->keybit);
+ }
+
+ error = request_irq(rotary->irq, bfin_rotary_isr,
+ 0, dev_name(&pdev->dev), pdev);
+ if (error) {
+ dev_err(&pdev->dev,
+ "unable to claim irq %d; error %d\n",
+ rotary->irq, error);
+ goto out1;
+ }
+
+ error = input_register_device(input);
+ if (error) {
+ dev_err(&pdev->dev,
+ "unable to register input device (%d)\n", error);
+ goto out2;
+ }
+
+ if (pdata->rotary_button_key)
+ bfin_write_CNT_IMASK(CZMIE);
+
+ if (pdata->mode & ROT_DEBE)
+ bfin_write_CNT_DEBOUNCE(pdata->debounce & DPRESCALE);
+
+ if (pdata->mode)
+ bfin_write_CNT_CONFIG(bfin_read_CNT_CONFIG() |
+ (pdata->mode & ~CNTE));
+
+ bfin_write_CNT_IMASK(bfin_read_CNT_IMASK() | UCIE | DCIE);
+ bfin_write_CNT_CONFIG(bfin_read_CNT_CONFIG() | CNTE);
+
+ platform_set_drvdata(pdev, rotary);
+ device_init_wakeup(&pdev->dev, 1);
+
+ return 0;
+
+out2:
+ free_irq(rotary->irq, pdev);
+out1:
+ input_free_device(input);
+ kfree(rotary);
+ peripheral_free_list(per_cnt);
+
+ return error;
+}
+
+static int __devexit bfin_rotary_remove(struct platform_device *pdev)
+{
+ struct bfin_rot *rotary = platform_get_drvdata(pdev);
+
+ bfin_write_CNT_CONFIG(0);
+ bfin_write_CNT_IMASK(0);
+
+ free_irq(rotary->irq, pdev);
+ input_unregister_device(rotary->input);
+ peripheral_free_list(per_cnt);
+
+ kfree(rotary);
+ platform_set_drvdata(pdev, NULL);
+
+ return 0;
+}
+
+#ifdef CONFIG_PM
+static int bfin_rotary_suspend(struct device *dev)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ struct bfin_rot *rotary = platform_get_drvdata(pdev);
+
+ rotary->cnt_config = bfin_read_CNT_CONFIG();
+ rotary->cnt_imask = bfin_read_CNT_IMASK();
+ rotary->cnt_debounce = bfin_read_CNT_DEBOUNCE();
+
+ if (device_may_wakeup(&pdev->dev))
+ enable_irq_wake(rotary->irq);
+
+ return 0;
+}
+
+static int bfin_rotary_resume(struct device *dev)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ struct bfin_rot *rotary = platform_get_drvdata(pdev);
+
+ bfin_write_CNT_DEBOUNCE(rotary->cnt_debounce);
+ bfin_write_CNT_IMASK(rotary->cnt_imask);
+ bfin_write_CNT_CONFIG(rotary->cnt_config & ~CNTE);
+
+ if (device_may_wakeup(&pdev->dev))
+ disable_irq_wake(rotary->irq);
+
+ if (rotary->cnt_config & CNTE)
+ bfin_write_CNT_CONFIG(rotary->cnt_config);
+
+ return 0;
+}
+
+static const struct dev_pm_ops bfin_rotary_pm_ops = {
+ .suspend = bfin_rotary_suspend,
+ .resume = bfin_rotary_resume,
+};
+#endif
+
+static struct platform_driver bfin_rotary_device_driver = {
+ .probe = bfin_rotary_probe,
+ .remove = __devexit_p(bfin_rotary_remove),
+ .driver = {
+ .name = "bfin-rotary",
+ .owner = THIS_MODULE,
+#ifdef CONFIG_PM
+ .pm = &bfin_rotary_pm_ops,
+#endif
+ },
+};
+
+static int __init bfin_rotary_init(void)
+{
+ return platform_driver_register(&bfin_rotary_device_driver);
+}
+module_init(bfin_rotary_init);
+
+static void __exit bfin_rotary_exit(void)
+{
+ platform_driver_unregister(&bfin_rotary_device_driver);
+}
+module_exit(bfin_rotary_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
+MODULE_DESCRIPTION("Rotary Counter driver for Blackfin Processors");
+MODULE_ALIAS("platform:bfin-rotary");
diff --git a/drivers/input/misc/bma150.c b/drivers/input/misc/bma150.c
new file mode 100644
index 0000000..8f55b54
--- /dev/null
+++ b/drivers/input/misc/bma150.c
@@ -0,0 +1,691 @@
+/*
+ * Copyright (c) 2011 Bosch Sensortec GmbH
+ * Copyright (c) 2011 Unixphere
+ *
+ * This driver adds support for Bosch Sensortec's digital acceleration
+ * sensors BMA150 and SMB380.
+ * The SMB380 is fully compatible with BMA150 and only differs in packaging.
+ *
+ * The datasheet for the BMA150 chip can be found here:
+ * http://www.bosch-sensortec.com/content/language1/downloads/BST-BMA150-DS000-07.pdf
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/i2c.h>
+#include <linux/input.h>
+#include <linux/input-polldev.h>
+#include <linux/interrupt.h>
+#include <linux/delay.h>
+#include <linux/slab.h>
+#include <linux/pm.h>
+#include <linux/pm_runtime.h>
+#include <linux/bma150.h>
+
+#define ABSMAX_ACC_VAL 0x01FF
+#define ABSMIN_ACC_VAL -(ABSMAX_ACC_VAL)
+
+/* Each axis is represented by a 2-byte data word */
+#define BMA150_XYZ_DATA_SIZE 6
+
+/* Input poll interval in milliseconds */
+#define BMA150_POLL_INTERVAL 10
+#define BMA150_POLL_MAX 200
+#define BMA150_POLL_MIN 0
+
+#define BMA150_BW_25HZ 0
+#define BMA150_BW_50HZ 1
+#define BMA150_BW_100HZ 2
+#define BMA150_BW_190HZ 3
+#define BMA150_BW_375HZ 4
+#define BMA150_BW_750HZ 5
+#define BMA150_BW_1500HZ 6
+
+#define BMA150_RANGE_2G 0
+#define BMA150_RANGE_4G 1
+#define BMA150_RANGE_8G 2
+
+#define BMA150_MODE_NORMAL 0
+#define BMA150_MODE_SLEEP 2
+#define BMA150_MODE_WAKE_UP 3
+
+/* Data register addresses */
+#define BMA150_DATA_0_REG 0x00
+#define BMA150_DATA_1_REG 0x01
+#define BMA150_DATA_2_REG 0x02
+
+/* Control register addresses */
+#define BMA150_CTRL_0_REG 0x0A
+#define BMA150_CTRL_1_REG 0x0B
+#define BMA150_CTRL_2_REG 0x14
+#define BMA150_CTRL_3_REG 0x15
+
+/* Configuration/Setting register addresses */
+#define BMA150_CFG_0_REG 0x0C
+#define BMA150_CFG_1_REG 0x0D
+#define BMA150_CFG_2_REG 0x0E
+#define BMA150_CFG_3_REG 0x0F
+#define BMA150_CFG_4_REG 0x10
+#define BMA150_CFG_5_REG 0x11
+
+#define BMA150_CHIP_ID 2
+#define BMA150_CHIP_ID_REG BMA150_DATA_0_REG
+
+#define BMA150_ACC_X_LSB_REG BMA150_DATA_2_REG
+
+#define BMA150_SLEEP_POS 0
+#define BMA150_SLEEP_MSK 0x01
+#define BMA150_SLEEP_REG BMA150_CTRL_0_REG
+
+#define BMA150_BANDWIDTH_POS 0
+#define BMA150_BANDWIDTH_MSK 0x07
+#define BMA150_BANDWIDTH_REG BMA150_CTRL_2_REG
+
+#define BMA150_RANGE_POS 3
+#define BMA150_RANGE_MSK 0x18
+#define BMA150_RANGE_REG BMA150_CTRL_2_REG
+
+#define BMA150_WAKE_UP_POS 0
+#define BMA150_WAKE_UP_MSK 0x01
+#define BMA150_WAKE_UP_REG BMA150_CTRL_3_REG
+
+#define BMA150_SW_RES_POS 1
+#define BMA150_SW_RES_MSK 0x02
+#define BMA150_SW_RES_REG BMA150_CTRL_0_REG
+
+/* Any-motion interrupt register fields */
+#define BMA150_ANY_MOTION_EN_POS 6
+#define BMA150_ANY_MOTION_EN_MSK 0x40
+#define BMA150_ANY_MOTION_EN_REG BMA150_CTRL_1_REG
+
+#define BMA150_ANY_MOTION_DUR_POS 6
+#define BMA150_ANY_MOTION_DUR_MSK 0xC0
+#define BMA150_ANY_MOTION_DUR_REG BMA150_CFG_5_REG
+
+#define BMA150_ANY_MOTION_THRES_REG BMA150_CFG_4_REG
+
+/* Advanced interrupt register fields */
+#define BMA150_ADV_INT_EN_POS 6
+#define BMA150_ADV_INT_EN_MSK 0x40
+#define BMA150_ADV_INT_EN_REG BMA150_CTRL_3_REG
+
+/* High-G interrupt register fields */
+#define BMA150_HIGH_G_EN_POS 1
+#define BMA150_HIGH_G_EN_MSK 0x02
+#define BMA150_HIGH_G_EN_REG BMA150_CTRL_1_REG
+
+#define BMA150_HIGH_G_HYST_POS 3
+#define BMA150_HIGH_G_HYST_MSK 0x38
+#define BMA150_HIGH_G_HYST_REG BMA150_CFG_5_REG
+
+#define BMA150_HIGH_G_DUR_REG BMA150_CFG_3_REG
+#define BMA150_HIGH_G_THRES_REG BMA150_CFG_2_REG
+
+/* Low-G interrupt register fields */
+#define BMA150_LOW_G_EN_POS 0
+#define BMA150_LOW_G_EN_MSK 0x01
+#define BMA150_LOW_G_EN_REG BMA150_CTRL_1_REG
+
+#define BMA150_LOW_G_HYST_POS 0
+#define BMA150_LOW_G_HYST_MSK 0x07
+#define BMA150_LOW_G_HYST_REG BMA150_CFG_5_REG
+
+#define BMA150_LOW_G_DUR_REG BMA150_CFG_1_REG
+#define BMA150_LOW_G_THRES_REG BMA150_CFG_0_REG
+
+struct bma150_data {
+ struct i2c_client *client;
+ struct input_polled_dev *input_polled;
+ struct input_dev *input;
+ u8 mode;
+};
+
+/*
+ * The settings for the given range, bandwidth and interrupt features
+ * are stated and verified by Bosch Sensortec where they are configured
+ * to provide a generic sensitivity performance.
+ */
+static struct bma150_cfg default_cfg __devinitdata = {
+ .any_motion_int = 1,
+ .hg_int = 1,
+ .lg_int = 1,
+ .any_motion_dur = 0,
+ .any_motion_thres = 0,
+ .hg_hyst = 0,
+ .hg_dur = 150,
+ .hg_thres = 160,
+ .lg_hyst = 0,
+ .lg_dur = 150,
+ .lg_thres = 20,
+ .range = BMA150_RANGE_2G,
+ .bandwidth = BMA150_BW_50HZ
+};
+
+static int bma150_write_byte(struct i2c_client *client, u8 reg, u8 val)
+{
+ s32 ret;
+
+ /* As per specification, disable irq in between register writes */
+ if (client->irq)
+ disable_irq_nosync(client->irq);
+
+ ret = i2c_smbus_write_byte_data(client, reg, val);
+
+ if (client->irq)
+ enable_irq(client->irq);
+
+ return ret;
+}
+
+static int bma150_set_reg_bits(struct i2c_client *client,
+ int val, int shift, u8 mask, u8 reg)
+{
+ int data;
+
+ data = i2c_smbus_read_byte_data(client, reg);
+ if (data < 0)
+ return data;
+
+ data = (data & ~mask) | ((val << shift) & mask);
+ return bma150_write_byte(client, reg, data);
+}
+
+static int bma150_set_mode(struct bma150_data *bma150, u8 mode)
+{
+ int error;
+
+ error = bma150_set_reg_bits(bma150->client, mode, BMA150_WAKE_UP_POS,
+ BMA150_WAKE_UP_MSK, BMA150_WAKE_UP_REG);
+ if (error)
+ return error;
+
+ error = bma150_set_reg_bits(bma150->client, mode, BMA150_SLEEP_POS,
+ BMA150_SLEEP_MSK, BMA150_SLEEP_REG);
+ if (error)
+ return error;
+
+ if (mode == BMA150_MODE_NORMAL)
+ msleep(2);
+
+ bma150->mode = mode;
+ return 0;
+}
+
+static int __devinit bma150_soft_reset(struct bma150_data *bma150)
+{
+ int error;
+
+ error = bma150_set_reg_bits(bma150->client, 1, BMA150_SW_RES_POS,
+ BMA150_SW_RES_MSK, BMA150_SW_RES_REG);
+ if (error)
+ return error;
+
+ msleep(2);
+ return 0;
+}
+
+static int __devinit bma150_set_range(struct bma150_data *bma150, u8 range)
+{
+ return bma150_set_reg_bits(bma150->client, range, BMA150_RANGE_POS,
+ BMA150_RANGE_MSK, BMA150_RANGE_REG);
+}
+
+static int __devinit bma150_set_bandwidth(struct bma150_data *bma150, u8 bw)
+{
+ return bma150_set_reg_bits(bma150->client, bw, BMA150_BANDWIDTH_POS,
+ BMA150_BANDWIDTH_MSK, BMA150_BANDWIDTH_REG);
+}
+
+static int __devinit bma150_set_low_g_interrupt(struct bma150_data *bma150,
+ u8 enable, u8 hyst, u8 dur, u8 thres)
+{
+ int error;
+
+ error = bma150_set_reg_bits(bma150->client, hyst,
+ BMA150_LOW_G_HYST_POS, BMA150_LOW_G_HYST_MSK,
+ BMA150_LOW_G_HYST_REG);
+ if (error)
+ return error;
+
+ error = bma150_write_byte(bma150->client, BMA150_LOW_G_DUR_REG, dur);
+ if (error)
+ return error;
+
+ error = bma150_write_byte(bma150->client, BMA150_LOW_G_THRES_REG, thres);
+ if (error)
+ return error;
+
+ return bma150_set_reg_bits(bma150->client, !!enable,
+ BMA150_LOW_G_EN_POS, BMA150_LOW_G_EN_MSK,
+ BMA150_LOW_G_EN_REG);
+}
+
+static int __devinit bma150_set_high_g_interrupt(struct bma150_data *bma150,
+ u8 enable, u8 hyst, u8 dur, u8 thres)
+{
+ int error;
+
+ error = bma150_set_reg_bits(bma150->client, hyst,
+ BMA150_HIGH_G_HYST_POS, BMA150_HIGH_G_HYST_MSK,
+ BMA150_HIGH_G_HYST_REG);
+ if (error)
+ return error;
+
+ error = bma150_write_byte(bma150->client,
+ BMA150_HIGH_G_DUR_REG, dur);
+ if (error)
+ return error;
+
+ error = bma150_write_byte(bma150->client,
+ BMA150_HIGH_G_THRES_REG, thres);
+ if (error)
+ return error;
+
+ return bma150_set_reg_bits(bma150->client, !!enable,
+ BMA150_HIGH_G_EN_POS, BMA150_HIGH_G_EN_MSK,
+ BMA150_HIGH_G_EN_REG);
+}
+
+
+static int __devinit bma150_set_any_motion_interrupt(struct bma150_data *bma150,
+ u8 enable, u8 dur, u8 thres)
+{
+ int error;
+
+ error = bma150_set_reg_bits(bma150->client, dur,
+ BMA150_ANY_MOTION_DUR_POS,
+ BMA150_ANY_MOTION_DUR_MSK,
+ BMA150_ANY_MOTION_DUR_REG);
+ if (error)
+ return error;
+
+ error = bma150_write_byte(bma150->client,
+ BMA150_ANY_MOTION_THRES_REG, thres);
+ if (error)
+ return error;
+
+ error = bma150_set_reg_bits(bma150->client, !!enable,
+ BMA150_ADV_INT_EN_POS, BMA150_ADV_INT_EN_MSK,
+ BMA150_ADV_INT_EN_REG);
+ if (error)
+ return error;
+
+ return bma150_set_reg_bits(bma150->client, !!enable,
+ BMA150_ANY_MOTION_EN_POS,
+ BMA150_ANY_MOTION_EN_MSK,
+ BMA150_ANY_MOTION_EN_REG);
+}
+
+static void bma150_report_xyz(struct bma150_data *bma150)
+{
+ u8 data[BMA150_XYZ_DATA_SIZE];
+ s16 x, y, z;
+ s32 ret;
+
+ ret = i2c_smbus_read_i2c_block_data(bma150->client,
+ BMA150_ACC_X_LSB_REG, BMA150_XYZ_DATA_SIZE, data);
+ if (ret != BMA150_XYZ_DATA_SIZE)
+ return;
+
+ x = ((0xc0 & data[0]) >> 6) | (data[1] << 2);
+ y = ((0xc0 & data[2]) >> 6) | (data[3] << 2);
+ z = ((0xc0 & data[4]) >> 6) | (data[5] << 2);
+
+ /* sign extension */
+ x = (s16) (x << 6) >> 6;
+ y = (s16) (y << 6) >> 6;
+ z = (s16) (z << 6) >> 6;
+
+ input_report_abs(bma150->input, ABS_X, x);
+ input_report_abs(bma150->input, ABS_Y, y);
+ input_report_abs(bma150->input, ABS_Z, z);
+ input_sync(bma150->input);
+}
+
+static irqreturn_t bma150_irq_thread(int irq, void *dev)
+{
+ bma150_report_xyz(dev);
+
+ return IRQ_HANDLED;
+}
+
+static void bma150_poll(struct input_polled_dev *dev)
+{
+ bma150_report_xyz(dev->private);
+}
+
+static int bma150_open(struct bma150_data *bma150)
+{
+ int error;
+
+ error = pm_runtime_get_sync(&bma150->client->dev);
+ if (error && error != -ENOSYS)
+ return error;
+
+ /*
+ * See if runtime PM woke up the device. If runtime PM
+ * is disabled we need to do it ourselves.
+ */
+ if (bma150->mode != BMA150_MODE_NORMAL) {
+ error = bma150_set_mode(bma150, BMA150_MODE_NORMAL);
+ if (error)
+ return error;
+ }
+
+ return 0;
+}
+
+static void bma150_close(struct bma150_data *bma150)
+{
+ pm_runtime_put_sync(&bma150->client->dev);
+
+ if (bma150->mode != BMA150_MODE_SLEEP)
+ bma150_set_mode(bma150, BMA150_MODE_SLEEP);
+}
+
+static int bma150_irq_open(struct input_dev *input)
+{
+ struct bma150_data *bma150 = input_get_drvdata(input);
+
+ return bma150_open(bma150);
+}
+
+static void bma150_irq_close(struct input_dev *input)
+{
+ struct bma150_data *bma150 = input_get_drvdata(input);
+
+ bma150_close(bma150);
+}
+
+static void bma150_poll_open(struct input_polled_dev *ipoll_dev)
+{
+ struct bma150_data *bma150 = ipoll_dev->private;
+
+ bma150_open(bma150);
+}
+
+static void bma150_poll_close(struct input_polled_dev *ipoll_dev)
+{
+ struct bma150_data *bma150 = ipoll_dev->private;
+
+ bma150_close(bma150);
+}
+
+static int __devinit bma150_initialize(struct bma150_data *bma150,
+ const struct bma150_cfg *cfg)
+{
+ int error;
+
+ error = bma150_soft_reset(bma150);
+ if (error)
+ return error;
+
+ error = bma150_set_bandwidth(bma150, cfg->bandwidth);
+ if (error)
+ return error;
+
+ error = bma150_set_range(bma150, cfg->range);
+ if (error)
+ return error;
+
+ if (bma150->client->irq) {
+ error = bma150_set_any_motion_interrupt(bma150,
+ cfg->any_motion_int,
+ cfg->any_motion_dur,
+ cfg->any_motion_thres);
+ if (error)
+ return error;
+
+ error = bma150_set_high_g_interrupt(bma150,
+ cfg->hg_int, cfg->hg_hyst,
+ cfg->hg_dur, cfg->hg_thres);
+ if (error)
+ return error;
+
+ error = bma150_set_low_g_interrupt(bma150,
+ cfg->lg_int, cfg->lg_hyst,
+ cfg->lg_dur, cfg->lg_thres);
+ if (error)
+ return error;
+ }
+
+ return bma150_set_mode(bma150, BMA150_MODE_SLEEP);
+}
+
+static void __devinit bma150_init_input_device(struct bma150_data *bma150,
+ struct input_dev *idev)
+{
+ idev->name = BMA150_DRIVER;
+ idev->phys = BMA150_DRIVER "/input0";
+ idev->id.bustype = BUS_I2C;
+ idev->dev.parent = &bma150->client->dev;
+
+ idev->evbit[0] = BIT_MASK(EV_ABS);
+ input_set_abs_params(idev, ABS_X, ABSMIN_ACC_VAL, ABSMAX_ACC_VAL, 0, 0);
+ input_set_abs_params(idev, ABS_Y, ABSMIN_ACC_VAL, ABSMAX_ACC_VAL, 0, 0);
+ input_set_abs_params(idev, ABS_Z, ABSMIN_ACC_VAL, ABSMAX_ACC_VAL, 0, 0);
+}
+
+static int __devinit bma150_register_input_device(struct bma150_data *bma150)
+{
+ struct input_dev *idev;
+ int error;
+
+ idev = input_allocate_device();
+ if (!idev)
+ return -ENOMEM;
+
+ bma150_init_input_device(bma150, idev);
+
+ idev->open = bma150_irq_open;
+ idev->close = bma150_irq_close;
+ input_set_drvdata(idev, bma150);
+
+ error = input_register_device(idev);
+ if (error) {
+ input_free_device(idev);
+ return error;
+ }
+
+ bma150->input = idev;
+ return 0;
+}
+
+static int __devinit bma150_register_polled_device(struct bma150_data *bma150)
+{
+ struct input_polled_dev *ipoll_dev;
+ int error;
+
+ ipoll_dev = input_allocate_polled_device();
+ if (!ipoll_dev)
+ return -ENOMEM;
+
+ ipoll_dev->private = bma150;
+ ipoll_dev->open = bma150_poll_open;
+ ipoll_dev->close = bma150_poll_close;
+ ipoll_dev->poll = bma150_poll;
+ ipoll_dev->poll_interval = BMA150_POLL_INTERVAL;
+ ipoll_dev->poll_interval_min = BMA150_POLL_MIN;
+ ipoll_dev->poll_interval_max = BMA150_POLL_MAX;
+
+ bma150_init_input_device(bma150, ipoll_dev->input);
+
+ error = input_register_polled_device(ipoll_dev);
+ if (error) {
+ input_free_polled_device(ipoll_dev);
+ return error;
+ }
+
+ bma150->input_polled = ipoll_dev;
+ bma150->input = ipoll_dev->input;
+
+ return 0;
+}
+
+static int __devinit bma150_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ const struct bma150_platform_data *pdata = client->dev.platform_data;
+ const struct bma150_cfg *cfg;
+ struct bma150_data *bma150;
+ int chip_id;
+ int error;
+
+ if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
+ dev_err(&client->dev, "i2c_check_functionality error\n");
+ return -EIO;
+ }
+
+ chip_id = i2c_smbus_read_byte_data(client, BMA150_CHIP_ID_REG);
+ if (chip_id != BMA150_CHIP_ID) {
+ dev_err(&client->dev, "BMA150 chip id error: %d\n", chip_id);
+ return -EINVAL;
+ }
+
+ bma150 = kzalloc(sizeof(struct bma150_data), GFP_KERNEL);
+ if (!bma150)
+ return -ENOMEM;
+
+ bma150->client = client;
+
+ if (pdata) {
+ if (pdata->irq_gpio_cfg) {
+ error = pdata->irq_gpio_cfg();
+ if (error) {
+ dev_err(&client->dev,
+ "IRQ GPIO conf. error %d, error %d\n",
+ client->irq, error);
+ goto err_free_mem;
+ }
+ }
+ cfg = &pdata->cfg;
+ } else {
+ cfg = &default_cfg;
+ }
+
+ error = bma150_initialize(bma150, cfg);
+ if (error)
+ goto err_free_mem;
+
+ if (client->irq > 0) {
+ error = bma150_register_input_device(bma150);
+ if (error)
+ goto err_free_mem;
+
+ error = request_threaded_irq(client->irq,
+ NULL, bma150_irq_thread,
+ IRQF_TRIGGER_RISING | IRQF_ONESHOT,
+ BMA150_DRIVER, bma150);
+ if (error) {
+ dev_err(&client->dev,
+ "irq request failed %d, error %d\n",
+ client->irq, error);
+ input_unregister_device(bma150->input);
+ goto err_free_mem;
+ }
+ } else {
+ error = bma150_register_polled_device(bma150);
+ if (error)
+ goto err_free_mem;
+ }
+
+ i2c_set_clientdata(client, bma150);
+
+ pm_runtime_enable(&client->dev);
+
+ return 0;
+
+err_free_mem:
+ kfree(bma150);
+ return error;
+}
+
+static int __devexit bma150_remove(struct i2c_client *client)
+{
+ struct bma150_data *bma150 = i2c_get_clientdata(client);
+
+ pm_runtime_disable(&client->dev);
+
+ if (client->irq > 0) {
+ free_irq(client->irq, bma150);
+ input_unregister_device(bma150->input);
+ } else {
+ input_unregister_polled_device(bma150->input_polled);
+ input_free_polled_device(bma150->input_polled);
+ }
+
+ kfree(bma150);
+
+ return 0;
+}
+
+#ifdef CONFIG_PM
+static int bma150_suspend(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct bma150_data *bma150 = i2c_get_clientdata(client);
+
+ return bma150_set_mode(bma150, BMA150_MODE_SLEEP);
+}
+
+static int bma150_resume(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct bma150_data *bma150 = i2c_get_clientdata(client);
+
+ return bma150_set_mode(bma150, BMA150_MODE_NORMAL);
+}
+#endif
+
+static UNIVERSAL_DEV_PM_OPS(bma150_pm, bma150_suspend, bma150_resume, NULL);
+
+static const struct i2c_device_id bma150_id[] = {
+ { "bma150", 0 },
+ { "smb380", 0 },
+ { "bma023", 0 },
+ { }
+};
+
+MODULE_DEVICE_TABLE(i2c, bma150_id);
+
+static struct i2c_driver bma150_driver = {
+ .driver = {
+ .owner = THIS_MODULE,
+ .name = BMA150_DRIVER,
+ .pm = &bma150_pm,
+ },
+ .class = I2C_CLASS_HWMON,
+ .id_table = bma150_id,
+ .probe = bma150_probe,
+ .remove = __devexit_p(bma150_remove),
+};
+
+static int __init BMA150_init(void)
+{
+ return i2c_add_driver(&bma150_driver);
+}
+
+static void __exit BMA150_exit(void)
+{
+ i2c_del_driver(&bma150_driver);
+}
+
+MODULE_AUTHOR("Albert Zhang <xu.zhang@bosch-sensortec.com>");
+MODULE_DESCRIPTION("BMA150 driver");
+MODULE_LICENSE("GPL");
+
+module_init(BMA150_init);
+module_exit(BMA150_exit);
diff --git a/drivers/input/misc/cm109.c b/drivers/input/misc/cm109.c
new file mode 100644
index 0000000..ab86051
--- /dev/null
+++ b/drivers/input/misc/cm109.c
@@ -0,0 +1,911 @@
+/*
+ * Driver for the VoIP USB phones with CM109 chipsets.
+ *
+ * Copyright (C) 2007 - 2008 Alfred E. Heggestad <aeh@db.org>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation, version 2.
+ */
+
+/*
+ * Tested devices:
+ * - Komunikate KIP1000
+ * - Genius G-talk
+ * - Allied-Telesis Corega USBPH01
+ * - ...
+ *
+ * This driver is based on the yealink.c driver
+ *
+ * Thanks to:
+ * - Authors of yealink.c
+ * - Thomas Reitmayr
+ * - Oliver Neukum for good review comments and code
+ * - Shaun Jackman <sjackman@gmail.com> for Genius G-talk keymap
+ * - Dmitry Torokhov for valuable input and review
+ *
+ * Todo:
+ * - Read/write EEPROM
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/rwsem.h>
+#include <linux/usb/input.h>
+
+#define DRIVER_VERSION "20080805"
+#define DRIVER_AUTHOR "Alfred E. Heggestad"
+#define DRIVER_DESC "CM109 phone driver"
+
+static char *phone = "kip1000";
+module_param(phone, charp, S_IRUSR);
+MODULE_PARM_DESC(phone, "Phone name {kip1000, gtalk, usbph01, atcom}");
+
+enum {
+ /* HID Registers */
+ HID_IR0 = 0x00, /* Record/Playback-mute button, Volume up/down */
+ HID_IR1 = 0x01, /* GPI, generic registers or EEPROM_DATA0 */
+ HID_IR2 = 0x02, /* Generic registers or EEPROM_DATA1 */
+ HID_IR3 = 0x03, /* Generic registers or EEPROM_CTRL */
+ HID_OR0 = 0x00, /* Mapping control, buzzer, SPDIF (offset 0x04) */
+ HID_OR1 = 0x01, /* GPO - General Purpose Output */
+ HID_OR2 = 0x02, /* Set GPIO to input/output mode */
+ HID_OR3 = 0x03, /* SPDIF status channel or EEPROM_CTRL */
+
+ /* HID_IR0 */
+ RECORD_MUTE = 1 << 3,
+ PLAYBACK_MUTE = 1 << 2,
+ VOLUME_DOWN = 1 << 1,
+ VOLUME_UP = 1 << 0,
+
+ /* HID_OR0 */
+ /* bits 7-6
+ 0: HID_OR1-2 are used for GPO; HID_OR0, 3 are used for buzzer
+ and SPDIF
+ 1: HID_OR0-3 are used as generic HID registers
+ 2: Values written to HID_OR0-3 are also mapped to MCU_CTRL,
+ EEPROM_DATA0-1, EEPROM_CTRL (see Note)
+ 3: Reserved
+ */
+ HID_OR_GPO_BUZ_SPDIF = 0 << 6,
+ HID_OR_GENERIC_HID_REG = 1 << 6,
+ HID_OR_MAP_MCU_EEPROM = 2 << 6,
+
+ BUZZER_ON = 1 << 5,
+
+ /* up to 256 normal keys, up to 16 special keys */
+ KEYMAP_SIZE = 256 + 16,
+};
+
+/* CM109 protocol packet */
+struct cm109_ctl_packet {
+ u8 byte[4];
+} __attribute__ ((packed));
+
+enum { USB_PKT_LEN = sizeof(struct cm109_ctl_packet) };
+
+/* CM109 device structure */
+struct cm109_dev {
+ struct input_dev *idev; /* input device */
+ struct usb_device *udev; /* usb device */
+ struct usb_interface *intf;
+
+ /* irq input channel */
+ struct cm109_ctl_packet *irq_data;
+ dma_addr_t irq_dma;
+ struct urb *urb_irq;
+
+ /* control output channel */
+ struct cm109_ctl_packet *ctl_data;
+ dma_addr_t ctl_dma;
+ struct usb_ctrlrequest *ctl_req;
+ struct urb *urb_ctl;
+ /*
+ * The 3 bitfields below are protected by ctl_submit_lock.
+ * They have to be separate since they are accessed from IRQ
+ * context.
+ */
+ unsigned irq_urb_pending:1; /* irq_urb is in flight */
+ unsigned ctl_urb_pending:1; /* ctl_urb is in flight */
+ unsigned buzzer_pending:1; /* need to issue buzz command */
+ spinlock_t ctl_submit_lock;
+
+ unsigned char buzzer_state; /* on/off */
+
+ /* flags */
+ unsigned open:1;
+ unsigned resetting:1;
+ unsigned shutdown:1;
+
+ /* This mutex protects writes to the above flags */
+ struct mutex pm_mutex;
+
+ unsigned short keymap[KEYMAP_SIZE];
+
+ char phys[64]; /* physical device path */
+ int key_code; /* last reported key */
+ int keybit; /* 0=new scan 1,2,4,8=scan columns */
+ u8 gpi; /* Cached value of GPI (high nibble) */
+};
+
+/******************************************************************************
+ * CM109 key interface
+ *****************************************************************************/
+
+static unsigned short special_keymap(int code)
+{
+ if (code > 0xff) {
+ switch (code - 0xff) {
+ case RECORD_MUTE: return KEY_MUTE;
+ case PLAYBACK_MUTE: return KEY_MUTE;
+ case VOLUME_DOWN: return KEY_VOLUMEDOWN;
+ case VOLUME_UP: return KEY_VOLUMEUP;
+ }
+ }
+ return KEY_RESERVED;
+}
+
+/* Map device buttons to internal key events.
+ *
+ * The "up" and "down" keys, are symbolised by arrows on the button.
+ * The "pickup" and "hangup" keys are symbolised by a green and red phone
+ * on the button.
+
+ Komunikate KIP1000 Keyboard Matrix
+
+ -> -- 1 -- 2 -- 3 --> GPI pin 4 (0x10)
+ | | | |
+ <- -- 4 -- 5 -- 6 --> GPI pin 5 (0x20)
+ | | | |
+ END - 7 -- 8 -- 9 --> GPI pin 6 (0x40)
+ | | | |
+ OK -- * -- 0 -- # --> GPI pin 7 (0x80)
+ | | | |
+
+ /|\ /|\ /|\ /|\
+ | | | |
+GPO
+pin: 3 2 1 0
+ 0x8 0x4 0x2 0x1
+
+ */
+static unsigned short keymap_kip1000(int scancode)
+{
+ switch (scancode) { /* phone key: */
+ case 0x82: return KEY_NUMERIC_0; /* 0 */
+ case 0x14: return KEY_NUMERIC_1; /* 1 */
+ case 0x12: return KEY_NUMERIC_2; /* 2 */
+ case 0x11: return KEY_NUMERIC_3; /* 3 */
+ case 0x24: return KEY_NUMERIC_4; /* 4 */
+ case 0x22: return KEY_NUMERIC_5; /* 5 */
+ case 0x21: return KEY_NUMERIC_6; /* 6 */
+ case 0x44: return KEY_NUMERIC_7; /* 7 */
+ case 0x42: return KEY_NUMERIC_8; /* 8 */
+ case 0x41: return KEY_NUMERIC_9; /* 9 */
+ case 0x81: return KEY_NUMERIC_POUND; /* # */
+ case 0x84: return KEY_NUMERIC_STAR; /* * */
+ case 0x88: return KEY_ENTER; /* pickup */
+ case 0x48: return KEY_ESC; /* hangup */
+ case 0x28: return KEY_LEFT; /* IN */
+ case 0x18: return KEY_RIGHT; /* OUT */
+ default: return special_keymap(scancode);
+ }
+}
+
+/*
+ Contributed by Shaun Jackman <sjackman@gmail.com>
+
+ Genius G-Talk keyboard matrix
+ 0 1 2 3
+ 4: 0 4 8 Talk
+ 5: 1 5 9 End
+ 6: 2 6 # Up
+ 7: 3 7 * Down
+*/
+static unsigned short keymap_gtalk(int scancode)
+{
+ switch (scancode) {
+ case 0x11: return KEY_NUMERIC_0;
+ case 0x21: return KEY_NUMERIC_1;
+ case 0x41: return KEY_NUMERIC_2;
+ case 0x81: return KEY_NUMERIC_3;
+ case 0x12: return KEY_NUMERIC_4;
+ case 0x22: return KEY_NUMERIC_5;
+ case 0x42: return KEY_NUMERIC_6;
+ case 0x82: return KEY_NUMERIC_7;
+ case 0x14: return KEY_NUMERIC_8;
+ case 0x24: return KEY_NUMERIC_9;
+ case 0x44: return KEY_NUMERIC_POUND; /* # */
+ case 0x84: return KEY_NUMERIC_STAR; /* * */
+ case 0x18: return KEY_ENTER; /* Talk (green handset) */
+ case 0x28: return KEY_ESC; /* End (red handset) */
+ case 0x48: return KEY_UP; /* Menu up (rocker switch) */
+ case 0x88: return KEY_DOWN; /* Menu down (rocker switch) */
+ default: return special_keymap(scancode);
+ }
+}
+
+/*
+ * Keymap for Allied-Telesis Corega USBPH01
+ * http://www.alliedtelesis-corega.com/2/1344/1437/1360/chprd.html
+ *
+ * Contributed by july@nat.bg
+ */
+static unsigned short keymap_usbph01(int scancode)
+{
+ switch (scancode) {
+ case 0x11: return KEY_NUMERIC_0; /* 0 */
+ case 0x21: return KEY_NUMERIC_1; /* 1 */
+ case 0x41: return KEY_NUMERIC_2; /* 2 */
+ case 0x81: return KEY_NUMERIC_3; /* 3 */
+ case 0x12: return KEY_NUMERIC_4; /* 4 */
+ case 0x22: return KEY_NUMERIC_5; /* 5 */
+ case 0x42: return KEY_NUMERIC_6; /* 6 */
+ case 0x82: return KEY_NUMERIC_7; /* 7 */
+ case 0x14: return KEY_NUMERIC_8; /* 8 */
+ case 0x24: return KEY_NUMERIC_9; /* 9 */
+ case 0x44: return KEY_NUMERIC_POUND; /* # */
+ case 0x84: return KEY_NUMERIC_STAR; /* * */
+ case 0x18: return KEY_ENTER; /* pickup */
+ case 0x28: return KEY_ESC; /* hangup */
+ case 0x48: return KEY_LEFT; /* IN */
+ case 0x88: return KEY_RIGHT; /* OUT */
+ default: return special_keymap(scancode);
+ }
+}
+
+/*
+ * Keymap for ATCom AU-100
+ * http://www.atcom.cn/products.html
+ * http://www.packetizer.com/products/au100/
+ * http://www.voip-info.org/wiki/view/AU-100
+ *
+ * Contributed by daniel@gimpelevich.san-francisco.ca.us
+ */
+static unsigned short keymap_atcom(int scancode)
+{
+ switch (scancode) { /* phone key: */
+ case 0x82: return KEY_NUMERIC_0; /* 0 */
+ case 0x11: return KEY_NUMERIC_1; /* 1 */
+ case 0x12: return KEY_NUMERIC_2; /* 2 */
+ case 0x14: return KEY_NUMERIC_3; /* 3 */
+ case 0x21: return KEY_NUMERIC_4; /* 4 */
+ case 0x22: return KEY_NUMERIC_5; /* 5 */
+ case 0x24: return KEY_NUMERIC_6; /* 6 */
+ case 0x41: return KEY_NUMERIC_7; /* 7 */
+ case 0x42: return KEY_NUMERIC_8; /* 8 */
+ case 0x44: return KEY_NUMERIC_9; /* 9 */
+ case 0x84: return KEY_NUMERIC_POUND; /* # */
+ case 0x81: return KEY_NUMERIC_STAR; /* * */
+ case 0x18: return KEY_ENTER; /* pickup */
+ case 0x28: return KEY_ESC; /* hangup */
+ case 0x48: return KEY_LEFT; /* left arrow */
+ case 0x88: return KEY_RIGHT; /* right arrow */
+ default: return special_keymap(scancode);
+ }
+}
+
+static unsigned short (*keymap)(int) = keymap_kip1000;
+
+/*
+ * Completes a request by converting the data into events for the
+ * input subsystem.
+ */
+static void report_key(struct cm109_dev *dev, int key)
+{
+ struct input_dev *idev = dev->idev;
+
+ if (dev->key_code >= 0) {
+ /* old key up */
+ input_report_key(idev, dev->key_code, 0);
+ }
+
+ dev->key_code = key;
+ if (key >= 0) {
+ /* new valid key */
+ input_report_key(idev, key, 1);
+ }
+
+ input_sync(idev);
+}
+
+/******************************************************************************
+ * CM109 usb communication interface
+ *****************************************************************************/
+
+static void cm109_submit_buzz_toggle(struct cm109_dev *dev)
+{
+ int error;
+
+ if (dev->buzzer_state)
+ dev->ctl_data->byte[HID_OR0] |= BUZZER_ON;
+ else
+ dev->ctl_data->byte[HID_OR0] &= ~BUZZER_ON;
+
+ error = usb_submit_urb(dev->urb_ctl, GFP_ATOMIC);
+ if (error)
+ err("%s: usb_submit_urb (urb_ctl) failed %d", __func__, error);
+}
+
+/*
+ * IRQ handler
+ */
+static void cm109_urb_irq_callback(struct urb *urb)
+{
+ struct cm109_dev *dev = urb->context;
+ const int status = urb->status;
+ int error;
+
+ dev_dbg(&urb->dev->dev, "### URB IRQ: [0x%02x 0x%02x 0x%02x 0x%02x] keybit=0x%02x\n",
+ dev->irq_data->byte[0],
+ dev->irq_data->byte[1],
+ dev->irq_data->byte[2],
+ dev->irq_data->byte[3],
+ dev->keybit);
+
+ if (status) {
+ if (status == -ESHUTDOWN)
+ return;
+ err("%s: urb status %d", __func__, status);
+ }
+
+ /* Special keys */
+ if (dev->irq_data->byte[HID_IR0] & 0x0f) {
+ const int code = (dev->irq_data->byte[HID_IR0] & 0x0f);
+ report_key(dev, dev->keymap[0xff + code]);
+ }
+
+ /* Scan key column */
+ if (dev->keybit == 0xf) {
+
+ /* Any changes ? */
+ if ((dev->gpi & 0xf0) == (dev->irq_data->byte[HID_IR1] & 0xf0))
+ goto out;
+
+ dev->gpi = dev->irq_data->byte[HID_IR1] & 0xf0;
+ dev->keybit = 0x1;
+ } else {
+ report_key(dev, dev->keymap[dev->irq_data->byte[HID_IR1]]);
+
+ dev->keybit <<= 1;
+ if (dev->keybit > 0x8)
+ dev->keybit = 0xf;
+ }
+
+ out:
+
+ spin_lock(&dev->ctl_submit_lock);
+
+ dev->irq_urb_pending = 0;
+
+ if (likely(!dev->shutdown)) {
+
+ if (dev->buzzer_state)
+ dev->ctl_data->byte[HID_OR0] |= BUZZER_ON;
+ else
+ dev->ctl_data->byte[HID_OR0] &= ~BUZZER_ON;
+
+ dev->ctl_data->byte[HID_OR1] = dev->keybit;
+ dev->ctl_data->byte[HID_OR2] = dev->keybit;
+
+ dev->buzzer_pending = 0;
+ dev->ctl_urb_pending = 1;
+
+ error = usb_submit_urb(dev->urb_ctl, GFP_ATOMIC);
+ if (error)
+ err("%s: usb_submit_urb (urb_ctl) failed %d",
+ __func__, error);
+ }
+
+ spin_unlock(&dev->ctl_submit_lock);
+}
+
+static void cm109_urb_ctl_callback(struct urb *urb)
+{
+ struct cm109_dev *dev = urb->context;
+ const int status = urb->status;
+ int error;
+
+ dev_dbg(&urb->dev->dev, "### URB CTL: [0x%02x 0x%02x 0x%02x 0x%02x]\n",
+ dev->ctl_data->byte[0],
+ dev->ctl_data->byte[1],
+ dev->ctl_data->byte[2],
+ dev->ctl_data->byte[3]);
+
+ if (status)
+ err("%s: urb status %d", __func__, status);
+
+ spin_lock(&dev->ctl_submit_lock);
+
+ dev->ctl_urb_pending = 0;
+
+ if (likely(!dev->shutdown)) {
+
+ if (dev->buzzer_pending) {
+ dev->buzzer_pending = 0;
+ dev->ctl_urb_pending = 1;
+ cm109_submit_buzz_toggle(dev);
+ } else if (likely(!dev->irq_urb_pending)) {
+ /* ask for key data */
+ dev->irq_urb_pending = 1;
+ error = usb_submit_urb(dev->urb_irq, GFP_ATOMIC);
+ if (error)
+ err("%s: usb_submit_urb (urb_irq) failed %d",
+ __func__, error);
+ }
+ }
+
+ spin_unlock(&dev->ctl_submit_lock);
+}
+
+static void cm109_toggle_buzzer_async(struct cm109_dev *dev)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&dev->ctl_submit_lock, flags);
+
+ if (dev->ctl_urb_pending) {
+ /* URB completion will resubmit */
+ dev->buzzer_pending = 1;
+ } else {
+ dev->ctl_urb_pending = 1;
+ cm109_submit_buzz_toggle(dev);
+ }
+
+ spin_unlock_irqrestore(&dev->ctl_submit_lock, flags);
+}
+
+static void cm109_toggle_buzzer_sync(struct cm109_dev *dev, int on)
+{
+ int error;
+
+ if (on)
+ dev->ctl_data->byte[HID_OR0] |= BUZZER_ON;
+ else
+ dev->ctl_data->byte[HID_OR0] &= ~BUZZER_ON;
+
+ error = usb_control_msg(dev->udev,
+ usb_sndctrlpipe(dev->udev, 0),
+ dev->ctl_req->bRequest,
+ dev->ctl_req->bRequestType,
+ le16_to_cpu(dev->ctl_req->wValue),
+ le16_to_cpu(dev->ctl_req->wIndex),
+ dev->ctl_data,
+ USB_PKT_LEN, USB_CTRL_SET_TIMEOUT);
+ if (error < 0 && error != -EINTR)
+ err("%s: usb_control_msg() failed %d", __func__, error);
+}
+
+static void cm109_stop_traffic(struct cm109_dev *dev)
+{
+ dev->shutdown = 1;
+ /*
+ * Make sure other CPUs see this
+ */
+ smp_wmb();
+
+ usb_kill_urb(dev->urb_ctl);
+ usb_kill_urb(dev->urb_irq);
+
+ cm109_toggle_buzzer_sync(dev, 0);
+
+ dev->shutdown = 0;
+ smp_wmb();
+}
+
+static void cm109_restore_state(struct cm109_dev *dev)
+{
+ if (dev->open) {
+ /*
+ * Restore buzzer state.
+ * This will also kick regular URB submission
+ */
+ cm109_toggle_buzzer_async(dev);
+ }
+}
+
+/******************************************************************************
+ * input event interface
+ *****************************************************************************/
+
+static int cm109_input_open(struct input_dev *idev)
+{
+ struct cm109_dev *dev = input_get_drvdata(idev);
+ int error;
+
+ error = usb_autopm_get_interface(dev->intf);
+ if (error < 0) {
+ err("%s - cannot autoresume, result %d",
+ __func__, error);
+ return error;
+ }
+
+ mutex_lock(&dev->pm_mutex);
+
+ dev->buzzer_state = 0;
+ dev->key_code = -1; /* no keys pressed */
+ dev->keybit = 0xf;
+
+ /* issue INIT */
+ dev->ctl_data->byte[HID_OR0] = HID_OR_GPO_BUZ_SPDIF;
+ dev->ctl_data->byte[HID_OR1] = dev->keybit;
+ dev->ctl_data->byte[HID_OR2] = dev->keybit;
+ dev->ctl_data->byte[HID_OR3] = 0x00;
+
+ error = usb_submit_urb(dev->urb_ctl, GFP_KERNEL);
+ if (error)
+ err("%s: usb_submit_urb (urb_ctl) failed %d", __func__, error);
+ else
+ dev->open = 1;
+
+ mutex_unlock(&dev->pm_mutex);
+
+ if (error)
+ usb_autopm_put_interface(dev->intf);
+
+ return error;
+}
+
+static void cm109_input_close(struct input_dev *idev)
+{
+ struct cm109_dev *dev = input_get_drvdata(idev);
+
+ mutex_lock(&dev->pm_mutex);
+
+ /*
+ * Once we are here event delivery is stopped so we
+ * don't need to worry about someone starting buzzer
+ * again
+ */
+ cm109_stop_traffic(dev);
+ dev->open = 0;
+
+ mutex_unlock(&dev->pm_mutex);
+
+ usb_autopm_put_interface(dev->intf);
+}
+
+static int cm109_input_ev(struct input_dev *idev, unsigned int type,
+ unsigned int code, int value)
+{
+ struct cm109_dev *dev = input_get_drvdata(idev);
+
+ dev_dbg(&dev->udev->dev,
+ "input_ev: type=%u code=%u value=%d\n", type, code, value);
+
+ if (type != EV_SND)
+ return -EINVAL;
+
+ switch (code) {
+ case SND_TONE:
+ case SND_BELL:
+ dev->buzzer_state = !!value;
+ if (!dev->resetting)
+ cm109_toggle_buzzer_async(dev);
+ return 0;
+
+ default:
+ return -EINVAL;
+ }
+}
+
+
+/******************************************************************************
+ * Linux interface and usb initialisation
+ *****************************************************************************/
+
+struct driver_info {
+ char *name;
+};
+
+static const struct driver_info info_cm109 = {
+ .name = "CM109 USB driver",
+};
+
+enum {
+ VENDOR_ID = 0x0d8c, /* C-Media Electronics */
+ PRODUCT_ID_CM109 = 0x000e, /* CM109 defines range 0x0008 - 0x000f */
+};
+
+/* table of devices that work with this driver */
+static const struct usb_device_id cm109_usb_table[] = {
+ {
+ .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
+ USB_DEVICE_ID_MATCH_INT_INFO,
+ .idVendor = VENDOR_ID,
+ .idProduct = PRODUCT_ID_CM109,
+ .bInterfaceClass = USB_CLASS_HID,
+ .bInterfaceSubClass = 0,
+ .bInterfaceProtocol = 0,
+ .driver_info = (kernel_ulong_t) &info_cm109
+ },
+ /* you can add more devices here with product ID 0x0008 - 0x000f */
+ { }
+};
+
+static void cm109_usb_cleanup(struct cm109_dev *dev)
+{
+ kfree(dev->ctl_req);
+ if (dev->ctl_data)
+ usb_free_coherent(dev->udev, USB_PKT_LEN,
+ dev->ctl_data, dev->ctl_dma);
+ if (dev->irq_data)
+ usb_free_coherent(dev->udev, USB_PKT_LEN,
+ dev->irq_data, dev->irq_dma);
+
+ usb_free_urb(dev->urb_irq); /* parameter validation in core/urb */
+ usb_free_urb(dev->urb_ctl); /* parameter validation in core/urb */
+ kfree(dev);
+}
+
+static void cm109_usb_disconnect(struct usb_interface *interface)
+{
+ struct cm109_dev *dev = usb_get_intfdata(interface);
+
+ usb_set_intfdata(interface, NULL);
+ input_unregister_device(dev->idev);
+ cm109_usb_cleanup(dev);
+}
+
+static int cm109_usb_probe(struct usb_interface *intf,
+ const struct usb_device_id *id)
+{
+ struct usb_device *udev = interface_to_usbdev(intf);
+ struct driver_info *nfo = (struct driver_info *)id->driver_info;
+ struct usb_host_interface *interface;
+ struct usb_endpoint_descriptor *endpoint;
+ struct cm109_dev *dev;
+ struct input_dev *input_dev = NULL;
+ int ret, pipe, i;
+ int error = -ENOMEM;
+
+ interface = intf->cur_altsetting;
+ endpoint = &interface->endpoint[0].desc;
+
+ if (!usb_endpoint_is_int_in(endpoint))
+ return -ENODEV;
+
+ dev = kzalloc(sizeof(*dev), GFP_KERNEL);
+ if (!dev)
+ return -ENOMEM;
+
+ spin_lock_init(&dev->ctl_submit_lock);
+ mutex_init(&dev->pm_mutex);
+
+ dev->udev = udev;
+ dev->intf = intf;
+
+ dev->idev = input_dev = input_allocate_device();
+ if (!input_dev)
+ goto err_out;
+
+ /* allocate usb buffers */
+ dev->irq_data = usb_alloc_coherent(udev, USB_PKT_LEN,
+ GFP_KERNEL, &dev->irq_dma);
+ if (!dev->irq_data)
+ goto err_out;
+
+ dev->ctl_data = usb_alloc_coherent(udev, USB_PKT_LEN,
+ GFP_KERNEL, &dev->ctl_dma);
+ if (!dev->ctl_data)
+ goto err_out;
+
+ dev->ctl_req = kmalloc(sizeof(*(dev->ctl_req)), GFP_KERNEL);
+ if (!dev->ctl_req)
+ goto err_out;
+
+ /* allocate urb structures */
+ dev->urb_irq = usb_alloc_urb(0, GFP_KERNEL);
+ if (!dev->urb_irq)
+ goto err_out;
+
+ dev->urb_ctl = usb_alloc_urb(0, GFP_KERNEL);
+ if (!dev->urb_ctl)
+ goto err_out;
+
+ /* get a handle to the interrupt data pipe */
+ pipe = usb_rcvintpipe(udev, endpoint->bEndpointAddress);
+ ret = usb_maxpacket(udev, pipe, usb_pipeout(pipe));
+ if (ret != USB_PKT_LEN)
+ err("invalid payload size %d, expected %d", ret, USB_PKT_LEN);
+
+ /* initialise irq urb */
+ usb_fill_int_urb(dev->urb_irq, udev, pipe, dev->irq_data,
+ USB_PKT_LEN,
+ cm109_urb_irq_callback, dev, endpoint->bInterval);
+ dev->urb_irq->transfer_dma = dev->irq_dma;
+ dev->urb_irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
+ dev->urb_irq->dev = udev;
+
+ /* initialise ctl urb */
+ dev->ctl_req->bRequestType = USB_TYPE_CLASS | USB_RECIP_INTERFACE |
+ USB_DIR_OUT;
+ dev->ctl_req->bRequest = USB_REQ_SET_CONFIGURATION;
+ dev->ctl_req->wValue = cpu_to_le16(0x200);
+ dev->ctl_req->wIndex = cpu_to_le16(interface->desc.bInterfaceNumber);
+ dev->ctl_req->wLength = cpu_to_le16(USB_PKT_LEN);
+
+ usb_fill_control_urb(dev->urb_ctl, udev, usb_sndctrlpipe(udev, 0),
+ (void *)dev->ctl_req, dev->ctl_data, USB_PKT_LEN,
+ cm109_urb_ctl_callback, dev);
+ dev->urb_ctl->transfer_dma = dev->ctl_dma;
+ dev->urb_ctl->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
+ dev->urb_ctl->dev = udev;
+
+ /* find out the physical bus location */
+ usb_make_path(udev, dev->phys, sizeof(dev->phys));
+ strlcat(dev->phys, "/input0", sizeof(dev->phys));
+
+ /* register settings for the input device */
+ input_dev->name = nfo->name;
+ input_dev->phys = dev->phys;
+ usb_to_input_id(udev, &input_dev->id);
+ input_dev->dev.parent = &intf->dev;
+
+ input_set_drvdata(input_dev, dev);
+ input_dev->open = cm109_input_open;
+ input_dev->close = cm109_input_close;
+ input_dev->event = cm109_input_ev;
+
+ input_dev->keycode = dev->keymap;
+ input_dev->keycodesize = sizeof(unsigned char);
+ input_dev->keycodemax = ARRAY_SIZE(dev->keymap);
+
+ input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_SND);
+ input_dev->sndbit[0] = BIT_MASK(SND_BELL) | BIT_MASK(SND_TONE);
+
+ /* register available key events */
+ for (i = 0; i < KEYMAP_SIZE; i++) {
+ unsigned short k = keymap(i);
+ dev->keymap[i] = k;
+ __set_bit(k, input_dev->keybit);
+ }
+ __clear_bit(KEY_RESERVED, input_dev->keybit);
+
+ error = input_register_device(dev->idev);
+ if (error)
+ goto err_out;
+
+ usb_set_intfdata(intf, dev);
+
+ return 0;
+
+ err_out:
+ input_free_device(input_dev);
+ cm109_usb_cleanup(dev);
+ return error;
+}
+
+static int cm109_usb_suspend(struct usb_interface *intf, pm_message_t message)
+{
+ struct cm109_dev *dev = usb_get_intfdata(intf);
+
+ dev_info(&intf->dev, "cm109: usb_suspend (event=%d)\n", message.event);
+
+ mutex_lock(&dev->pm_mutex);
+ cm109_stop_traffic(dev);
+ mutex_unlock(&dev->pm_mutex);
+
+ return 0;
+}
+
+static int cm109_usb_resume(struct usb_interface *intf)
+{
+ struct cm109_dev *dev = usb_get_intfdata(intf);
+
+ dev_info(&intf->dev, "cm109: usb_resume\n");
+
+ mutex_lock(&dev->pm_mutex);
+ cm109_restore_state(dev);
+ mutex_unlock(&dev->pm_mutex);
+
+ return 0;
+}
+
+static int cm109_usb_pre_reset(struct usb_interface *intf)
+{
+ struct cm109_dev *dev = usb_get_intfdata(intf);
+
+ mutex_lock(&dev->pm_mutex);
+
+ /*
+ * Make sure input events don't try to toggle buzzer
+ * while we are resetting
+ */
+ dev->resetting = 1;
+ smp_wmb();
+
+ cm109_stop_traffic(dev);
+
+ return 0;
+}
+
+static int cm109_usb_post_reset(struct usb_interface *intf)
+{
+ struct cm109_dev *dev = usb_get_intfdata(intf);
+
+ dev->resetting = 0;
+ smp_wmb();
+
+ cm109_restore_state(dev);
+
+ mutex_unlock(&dev->pm_mutex);
+
+ return 0;
+}
+
+static struct usb_driver cm109_driver = {
+ .name = "cm109",
+ .probe = cm109_usb_probe,
+ .disconnect = cm109_usb_disconnect,
+ .suspend = cm109_usb_suspend,
+ .resume = cm109_usb_resume,
+ .reset_resume = cm109_usb_resume,
+ .pre_reset = cm109_usb_pre_reset,
+ .post_reset = cm109_usb_post_reset,
+ .id_table = cm109_usb_table,
+ .supports_autosuspend = 1,
+};
+
+static int __init cm109_select_keymap(void)
+{
+ /* Load the phone keymap */
+ if (!strcasecmp(phone, "kip1000")) {
+ keymap = keymap_kip1000;
+ printk(KERN_INFO KBUILD_MODNAME ": "
+ "Keymap for Komunikate KIP1000 phone loaded\n");
+ } else if (!strcasecmp(phone, "gtalk")) {
+ keymap = keymap_gtalk;
+ printk(KERN_INFO KBUILD_MODNAME ": "
+ "Keymap for Genius G-talk phone loaded\n");
+ } else if (!strcasecmp(phone, "usbph01")) {
+ keymap = keymap_usbph01;
+ printk(KERN_INFO KBUILD_MODNAME ": "
+ "Keymap for Allied-Telesis Corega USBPH01 phone loaded\n");
+ } else if (!strcasecmp(phone, "atcom")) {
+ keymap = keymap_atcom;
+ printk(KERN_INFO KBUILD_MODNAME ": "
+ "Keymap for ATCom AU-100 phone loaded\n");
+ } else {
+ printk(KERN_ERR KBUILD_MODNAME ": "
+ "Unsupported phone: %s\n", phone);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int __init cm109_init(void)
+{
+ int err;
+
+ err = cm109_select_keymap();
+ if (err)
+ return err;
+
+ err = usb_register(&cm109_driver);
+ if (err)
+ return err;
+
+ printk(KERN_INFO KBUILD_MODNAME ": "
+ DRIVER_DESC ": " DRIVER_VERSION " (C) " DRIVER_AUTHOR "\n");
+
+ return 0;
+}
+
+static void __exit cm109_exit(void)
+{
+ usb_deregister(&cm109_driver);
+}
+
+module_init(cm109_init);
+module_exit(cm109_exit);
+
+MODULE_DEVICE_TABLE(usb, cm109_usb_table);
+
+MODULE_AUTHOR(DRIVER_AUTHOR);
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
diff --git a/drivers/input/misc/cma3000_d0x.c b/drivers/input/misc/cma3000_d0x.c
new file mode 100644
index 0000000..06517e6
--- /dev/null
+++ b/drivers/input/misc/cma3000_d0x.c
@@ -0,0 +1,399 @@
+/*
+ * VTI CMA3000_D0x Accelerometer driver
+ *
+ * Copyright (C) 2010 Texas Instruments
+ * Author: Hemanth V <hemanthv@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <linux/types.h>
+#include <linux/interrupt.h>
+#include <linux/delay.h>
+#include <linux/slab.h>
+#include <linux/input.h>
+#include <linux/input/cma3000.h>
+#include <linux/module.h>
+
+#include "cma3000_d0x.h"
+
+#define CMA3000_WHOAMI 0x00
+#define CMA3000_REVID 0x01
+#define CMA3000_CTRL 0x02
+#define CMA3000_STATUS 0x03
+#define CMA3000_RSTR 0x04
+#define CMA3000_INTSTATUS 0x05
+#define CMA3000_DOUTX 0x06
+#define CMA3000_DOUTY 0x07
+#define CMA3000_DOUTZ 0x08
+#define CMA3000_MDTHR 0x09
+#define CMA3000_MDFFTMR 0x0A
+#define CMA3000_FFTHR 0x0B
+
+#define CMA3000_RANGE2G (1 << 7)
+#define CMA3000_RANGE8G (0 << 7)
+#define CMA3000_BUSI2C (0 << 4)
+#define CMA3000_MODEMASK (7 << 1)
+#define CMA3000_GRANGEMASK (1 << 7)
+
+#define CMA3000_STATUS_PERR 1
+#define CMA3000_INTSTATUS_FFDET (1 << 2)
+
+/* Settling time delay in ms */
+#define CMA3000_SETDELAY 30
+
+/* Delay for clearing interrupt in us */
+#define CMA3000_INTDELAY 44
+
+
+/*
+ * Bit weights in mg for bit 0, other bits need
+ * multipy factor 2^n. Eight bit is the sign bit.
+ */
+#define BIT_TO_2G 18
+#define BIT_TO_8G 71
+
+struct cma3000_accl_data {
+ const struct cma3000_bus_ops *bus_ops;
+ const struct cma3000_platform_data *pdata;
+
+ struct device *dev;
+ struct input_dev *input_dev;
+
+ int bit_to_mg;
+ int irq;
+
+ int g_range;
+ u8 mode;
+
+ struct mutex mutex;
+ bool opened;
+ bool suspended;
+};
+
+#define CMA3000_READ(data, reg, msg) \
+ (data->bus_ops->read(data->dev, reg, msg))
+#define CMA3000_SET(data, reg, val, msg) \
+ ((data)->bus_ops->write(data->dev, reg, val, msg))
+
+/*
+ * Conversion for each of the eight modes to g, depending
+ * on G range i.e 2G or 8G. Some modes always operate in
+ * 8G.
+ */
+
+static int mode_to_mg[8][2] = {
+ { 0, 0 },
+ { BIT_TO_8G, BIT_TO_2G },
+ { BIT_TO_8G, BIT_TO_2G },
+ { BIT_TO_8G, BIT_TO_8G },
+ { BIT_TO_8G, BIT_TO_8G },
+ { BIT_TO_8G, BIT_TO_2G },
+ { BIT_TO_8G, BIT_TO_2G },
+ { 0, 0},
+};
+
+static void decode_mg(struct cma3000_accl_data *data, int *datax,
+ int *datay, int *dataz)
+{
+ /* Data in 2's complement, convert to mg */
+ *datax = ((s8)*datax) * data->bit_to_mg;
+ *datay = ((s8)*datay) * data->bit_to_mg;
+ *dataz = ((s8)*dataz) * data->bit_to_mg;
+}
+
+static irqreturn_t cma3000_thread_irq(int irq, void *dev_id)
+{
+ struct cma3000_accl_data *data = dev_id;
+ int datax, datay, dataz, intr_status;
+ u8 ctrl, mode, range;
+
+ intr_status = CMA3000_READ(data, CMA3000_INTSTATUS, "interrupt status");
+ if (intr_status < 0)
+ return IRQ_NONE;
+
+ /* Check if free fall is detected, report immediately */
+ if (intr_status & CMA3000_INTSTATUS_FFDET) {
+ input_report_abs(data->input_dev, ABS_MISC, 1);
+ input_sync(data->input_dev);
+ } else {
+ input_report_abs(data->input_dev, ABS_MISC, 0);
+ }
+
+ datax = CMA3000_READ(data, CMA3000_DOUTX, "X");
+ datay = CMA3000_READ(data, CMA3000_DOUTY, "Y");
+ dataz = CMA3000_READ(data, CMA3000_DOUTZ, "Z");
+
+ ctrl = CMA3000_READ(data, CMA3000_CTRL, "ctrl");
+ mode = (ctrl & CMA3000_MODEMASK) >> 1;
+ range = (ctrl & CMA3000_GRANGEMASK) >> 7;
+
+ data->bit_to_mg = mode_to_mg[mode][range];
+
+ /* Interrupt not for this device */
+ if (data->bit_to_mg == 0)
+ return IRQ_NONE;
+
+ /* Decode register values to milli g */
+ decode_mg(data, &datax, &datay, &dataz);
+
+ input_report_abs(data->input_dev, ABS_X, datax);
+ input_report_abs(data->input_dev, ABS_Y, datay);
+ input_report_abs(data->input_dev, ABS_Z, dataz);
+ input_sync(data->input_dev);
+
+ return IRQ_HANDLED;
+}
+
+static int cma3000_reset(struct cma3000_accl_data *data)
+{
+ int val;
+
+ /* Reset sequence */
+ CMA3000_SET(data, CMA3000_RSTR, 0x02, "Reset");
+ CMA3000_SET(data, CMA3000_RSTR, 0x0A, "Reset");
+ CMA3000_SET(data, CMA3000_RSTR, 0x04, "Reset");
+
+ /* Settling time delay */
+ mdelay(10);
+
+ val = CMA3000_READ(data, CMA3000_STATUS, "Status");
+ if (val < 0) {
+ dev_err(data->dev, "Reset failed\n");
+ return val;
+ }
+
+ if (val & CMA3000_STATUS_PERR) {
+ dev_err(data->dev, "Parity Error\n");
+ return -EIO;
+ }
+
+ return 0;
+}
+
+static int cma3000_poweron(struct cma3000_accl_data *data)
+{
+ const struct cma3000_platform_data *pdata = data->pdata;
+ u8 ctrl = 0;
+ int ret;
+
+ if (data->g_range == CMARANGE_2G) {
+ ctrl = (data->mode << 1) | CMA3000_RANGE2G;
+ } else if (data->g_range == CMARANGE_8G) {
+ ctrl = (data->mode << 1) | CMA3000_RANGE8G;
+ } else {
+ dev_info(data->dev,
+ "Invalid G range specified, assuming 8G\n");
+ ctrl = (data->mode << 1) | CMA3000_RANGE8G;
+ }
+
+ ctrl |= data->bus_ops->ctrl_mod;
+
+ CMA3000_SET(data, CMA3000_MDTHR, pdata->mdthr,
+ "Motion Detect Threshold");
+ CMA3000_SET(data, CMA3000_MDFFTMR, pdata->mdfftmr,
+ "Time register");
+ CMA3000_SET(data, CMA3000_FFTHR, pdata->ffthr,
+ "Free fall threshold");
+ ret = CMA3000_SET(data, CMA3000_CTRL, ctrl, "Mode setting");
+ if (ret < 0)
+ return -EIO;
+
+ msleep(CMA3000_SETDELAY);
+
+ return 0;
+}
+
+static int cma3000_poweroff(struct cma3000_accl_data *data)
+{
+ int ret;
+
+ ret = CMA3000_SET(data, CMA3000_CTRL, CMAMODE_POFF, "Mode setting");
+ msleep(CMA3000_SETDELAY);
+
+ return ret;
+}
+
+static int cma3000_open(struct input_dev *input_dev)
+{
+ struct cma3000_accl_data *data = input_get_drvdata(input_dev);
+
+ mutex_lock(&data->mutex);
+
+ if (!data->suspended)
+ cma3000_poweron(data);
+
+ data->opened = true;
+
+ mutex_unlock(&data->mutex);
+
+ return 0;
+}
+
+static void cma3000_close(struct input_dev *input_dev)
+{
+ struct cma3000_accl_data *data = input_get_drvdata(input_dev);
+
+ mutex_lock(&data->mutex);
+
+ if (!data->suspended)
+ cma3000_poweroff(data);
+
+ data->opened = false;
+
+ mutex_unlock(&data->mutex);
+}
+
+void cma3000_suspend(struct cma3000_accl_data *data)
+{
+ mutex_lock(&data->mutex);
+
+ if (!data->suspended && data->opened)
+ cma3000_poweroff(data);
+
+ data->suspended = true;
+
+ mutex_unlock(&data->mutex);
+}
+EXPORT_SYMBOL(cma3000_suspend);
+
+
+void cma3000_resume(struct cma3000_accl_data *data)
+{
+ mutex_lock(&data->mutex);
+
+ if (data->suspended && data->opened)
+ cma3000_poweron(data);
+
+ data->suspended = false;
+
+ mutex_unlock(&data->mutex);
+}
+EXPORT_SYMBOL(cma3000_resume);
+
+struct cma3000_accl_data *cma3000_init(struct device *dev, int irq,
+ const struct cma3000_bus_ops *bops)
+{
+ const struct cma3000_platform_data *pdata = dev->platform_data;
+ struct cma3000_accl_data *data;
+ struct input_dev *input_dev;
+ int rev;
+ int error;
+
+ if (!pdata) {
+ dev_err(dev, "platform data not found\n");
+ error = -EINVAL;
+ goto err_out;
+ }
+
+
+ /* if no IRQ return error */
+ if (irq == 0) {
+ error = -EINVAL;
+ goto err_out;
+ }
+
+ data = kzalloc(sizeof(struct cma3000_accl_data), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!data || !input_dev) {
+ error = -ENOMEM;
+ goto err_free_mem;
+ }
+
+ data->dev = dev;
+ data->input_dev = input_dev;
+ data->bus_ops = bops;
+ data->pdata = pdata;
+ data->irq = irq;
+ mutex_init(&data->mutex);
+
+ data->mode = pdata->mode;
+ if (data->mode < CMAMODE_DEFAULT || data->mode > CMAMODE_POFF) {
+ data->mode = CMAMODE_MOTDET;
+ dev_warn(dev,
+ "Invalid mode specified, assuming Motion Detect\n");
+ }
+
+ data->g_range = pdata->g_range;
+ if (data->g_range != CMARANGE_2G && data->g_range != CMARANGE_8G) {
+ dev_info(dev,
+ "Invalid G range specified, assuming 8G\n");
+ data->g_range = CMARANGE_8G;
+ }
+
+ input_dev->name = "cma3000-accelerometer";
+ input_dev->id.bustype = bops->bustype;
+ input_dev->open = cma3000_open;
+ input_dev->close = cma3000_close;
+
+ __set_bit(EV_ABS, input_dev->evbit);
+
+ input_set_abs_params(input_dev, ABS_X,
+ -data->g_range, data->g_range, pdata->fuzz_x, 0);
+ input_set_abs_params(input_dev, ABS_Y,
+ -data->g_range, data->g_range, pdata->fuzz_y, 0);
+ input_set_abs_params(input_dev, ABS_Z,
+ -data->g_range, data->g_range, pdata->fuzz_z, 0);
+ input_set_abs_params(input_dev, ABS_MISC, 0, 1, 0, 0);
+
+ input_set_drvdata(input_dev, data);
+
+ error = cma3000_reset(data);
+ if (error)
+ goto err_free_mem;
+
+ rev = CMA3000_READ(data, CMA3000_REVID, "Revid");
+ if (rev < 0) {
+ error = rev;
+ goto err_free_mem;
+ }
+
+ pr_info("CMA3000 Accelerometer: Revision %x\n", rev);
+
+ error = request_threaded_irq(irq, NULL, cma3000_thread_irq,
+ pdata->irqflags | IRQF_ONESHOT,
+ "cma3000_d0x", data);
+ if (error) {
+ dev_err(dev, "request_threaded_irq failed\n");
+ goto err_free_mem;
+ }
+
+ error = input_register_device(data->input_dev);
+ if (error) {
+ dev_err(dev, "Unable to register input device\n");
+ goto err_free_irq;
+ }
+
+ return data;
+
+err_free_irq:
+ free_irq(irq, data);
+err_free_mem:
+ input_free_device(input_dev);
+ kfree(data);
+err_out:
+ return ERR_PTR(error);
+}
+EXPORT_SYMBOL(cma3000_init);
+
+void cma3000_exit(struct cma3000_accl_data *data)
+{
+ free_irq(data->irq, data);
+ input_unregister_device(data->input_dev);
+ kfree(data);
+}
+EXPORT_SYMBOL(cma3000_exit);
+
+MODULE_DESCRIPTION("CMA3000-D0x Accelerometer Driver");
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Hemanth V <hemanthv@ti.com>");
diff --git a/drivers/input/misc/cma3000_d0x.h b/drivers/input/misc/cma3000_d0x.h
new file mode 100644
index 0000000..2304ce3
--- /dev/null
+++ b/drivers/input/misc/cma3000_d0x.h
@@ -0,0 +1,42 @@
+/*
+ * VTI CMA3000_D0x Accelerometer driver
+ *
+ * Copyright (C) 2010 Texas Instruments
+ * Author: Hemanth V <hemanthv@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef _INPUT_CMA3000_H
+#define _INPUT_CMA3000_H
+
+#include <linux/types.h>
+#include <linux/input.h>
+
+struct device;
+struct cma3000_accl_data;
+
+struct cma3000_bus_ops {
+ u16 bustype;
+ u8 ctrl_mod;
+ int (*read)(struct device *, u8, char *);
+ int (*write)(struct device *, u8, u8, char *);
+};
+
+struct cma3000_accl_data *cma3000_init(struct device *dev, int irq,
+ const struct cma3000_bus_ops *bops);
+void cma3000_exit(struct cma3000_accl_data *);
+void cma3000_suspend(struct cma3000_accl_data *);
+void cma3000_resume(struct cma3000_accl_data *);
+
+#endif
diff --git a/drivers/input/misc/cma3000_d0x_i2c.c b/drivers/input/misc/cma3000_d0x_i2c.c
new file mode 100644
index 0000000..d100cc5
--- /dev/null
+++ b/drivers/input/misc/cma3000_d0x_i2c.c
@@ -0,0 +1,143 @@
+/*
+ * Implements I2C interface for VTI CMA300_D0x Accelerometer driver
+ *
+ * Copyright (C) 2010 Texas Instruments
+ * Author: Hemanth V <hemanthv@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <linux/module.h>
+#include <linux/i2c.h>
+#include <linux/input/cma3000.h>
+#include "cma3000_d0x.h"
+
+static int cma3000_i2c_set(struct device *dev,
+ u8 reg, u8 val, char *msg)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ int ret;
+
+ ret = i2c_smbus_write_byte_data(client, reg, val);
+ if (ret < 0)
+ dev_err(&client->dev,
+ "%s failed (%s, %d)\n", __func__, msg, ret);
+ return ret;
+}
+
+static int cma3000_i2c_read(struct device *dev, u8 reg, char *msg)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ int ret;
+
+ ret = i2c_smbus_read_byte_data(client, reg);
+ if (ret < 0)
+ dev_err(&client->dev,
+ "%s failed (%s, %d)\n", __func__, msg, ret);
+ return ret;
+}
+
+static const struct cma3000_bus_ops cma3000_i2c_bops = {
+ .bustype = BUS_I2C,
+#define CMA3000_BUSI2C (0 << 4)
+ .ctrl_mod = CMA3000_BUSI2C,
+ .read = cma3000_i2c_read,
+ .write = cma3000_i2c_set,
+};
+
+static int __devinit cma3000_i2c_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct cma3000_accl_data *data;
+
+ data = cma3000_init(&client->dev, client->irq, &cma3000_i2c_bops);
+ if (IS_ERR(data))
+ return PTR_ERR(data);
+
+ i2c_set_clientdata(client, data);
+
+ return 0;
+}
+
+static int __devexit cma3000_i2c_remove(struct i2c_client *client)
+{
+ struct cma3000_accl_data *data = i2c_get_clientdata(client);
+
+ cma3000_exit(data);
+
+ return 0;
+}
+
+#ifdef CONFIG_PM
+static int cma3000_i2c_suspend(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct cma3000_accl_data *data = i2c_get_clientdata(client);
+
+ cma3000_suspend(data);
+
+ return 0;
+}
+
+static int cma3000_i2c_resume(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct cma3000_accl_data *data = i2c_get_clientdata(client);
+
+ cma3000_resume(data);
+
+ return 0;
+}
+
+static const struct dev_pm_ops cma3000_i2c_pm_ops = {
+ .suspend = cma3000_i2c_suspend,
+ .resume = cma3000_i2c_resume,
+};
+#endif
+
+static const struct i2c_device_id cma3000_i2c_id[] = {
+ { "cma3000_d01", 0 },
+ { },
+};
+
+MODULE_DEVICE_TABLE(i2c, cma3000_i2c_id);
+
+static struct i2c_driver cma3000_i2c_driver = {
+ .probe = cma3000_i2c_probe,
+ .remove = __devexit_p(cma3000_i2c_remove),
+ .id_table = cma3000_i2c_id,
+ .driver = {
+ .name = "cma3000_i2c_accl",
+ .owner = THIS_MODULE,
+#ifdef CONFIG_PM
+ .pm = &cma3000_i2c_pm_ops,
+#endif
+ },
+};
+
+static int __init cma3000_i2c_init(void)
+{
+ return i2c_add_driver(&cma3000_i2c_driver);
+}
+
+static void __exit cma3000_i2c_exit(void)
+{
+ i2c_del_driver(&cma3000_i2c_driver);
+}
+
+module_init(cma3000_i2c_init);
+module_exit(cma3000_i2c_exit);
+
+MODULE_DESCRIPTION("CMA3000-D0x Accelerometer I2C Driver");
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Hemanth V <hemanthv@ti.com>");
diff --git a/drivers/input/misc/cobalt_btns.c b/drivers/input/misc/cobalt_btns.c
new file mode 100644
index 0000000..fd8407a
--- /dev/null
+++ b/drivers/input/misc/cobalt_btns.c
@@ -0,0 +1,178 @@
+/*
+ * Cobalt button interface driver.
+ *
+ * Copyright (C) 2007-2008 Yoichi Yuasa <yuasa@linux-mips.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+#include <linux/init.h>
+#include <linux/input-polldev.h>
+#include <linux/ioport.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+
+#define BUTTONS_POLL_INTERVAL 30 /* msec */
+#define BUTTONS_COUNT_THRESHOLD 3
+#define BUTTONS_STATUS_MASK 0xfe000000
+
+static const unsigned short cobalt_map[] = {
+ KEY_RESERVED,
+ KEY_RESTART,
+ KEY_LEFT,
+ KEY_UP,
+ KEY_DOWN,
+ KEY_RIGHT,
+ KEY_ENTER,
+ KEY_SELECT
+};
+
+struct buttons_dev {
+ struct input_polled_dev *poll_dev;
+ unsigned short keymap[ARRAY_SIZE(cobalt_map)];
+ int count[ARRAY_SIZE(cobalt_map)];
+ void __iomem *reg;
+};
+
+static void handle_buttons(struct input_polled_dev *dev)
+{
+ struct buttons_dev *bdev = dev->private;
+ struct input_dev *input = dev->input;
+ uint32_t status;
+ int i;
+
+ status = ~readl(bdev->reg) >> 24;
+
+ for (i = 0; i < ARRAY_SIZE(bdev->keymap); i++) {
+ if (status & (1U << i)) {
+ if (++bdev->count[i] == BUTTONS_COUNT_THRESHOLD) {
+ input_event(input, EV_MSC, MSC_SCAN, i);
+ input_report_key(input, bdev->keymap[i], 1);
+ input_sync(input);
+ }
+ } else {
+ if (bdev->count[i] >= BUTTONS_COUNT_THRESHOLD) {
+ input_event(input, EV_MSC, MSC_SCAN, i);
+ input_report_key(input, bdev->keymap[i], 0);
+ input_sync(input);
+ }
+ bdev->count[i] = 0;
+ }
+ }
+}
+
+static int __devinit cobalt_buttons_probe(struct platform_device *pdev)
+{
+ struct buttons_dev *bdev;
+ struct input_polled_dev *poll_dev;
+ struct input_dev *input;
+ struct resource *res;
+ int error, i;
+
+ bdev = kzalloc(sizeof(struct buttons_dev), GFP_KERNEL);
+ poll_dev = input_allocate_polled_device();
+ if (!bdev || !poll_dev) {
+ error = -ENOMEM;
+ goto err_free_mem;
+ }
+
+ memcpy(bdev->keymap, cobalt_map, sizeof(bdev->keymap));
+
+ poll_dev->private = bdev;
+ poll_dev->poll = handle_buttons;
+ poll_dev->poll_interval = BUTTONS_POLL_INTERVAL;
+
+ input = poll_dev->input;
+ input->name = "Cobalt buttons";
+ input->phys = "cobalt/input0";
+ input->id.bustype = BUS_HOST;
+ input->dev.parent = &pdev->dev;
+
+ input->keycode = bdev->keymap;
+ input->keycodemax = ARRAY_SIZE(bdev->keymap);
+ input->keycodesize = sizeof(unsigned short);
+
+ input_set_capability(input, EV_MSC, MSC_SCAN);
+ __set_bit(EV_KEY, input->evbit);
+ for (i = 0; i < ARRAY_SIZE(cobalt_map); i++)
+ __set_bit(bdev->keymap[i], input->keybit);
+ __clear_bit(KEY_RESERVED, input->keybit);
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!res) {
+ error = -EBUSY;
+ goto err_free_mem;
+ }
+
+ bdev->poll_dev = poll_dev;
+ bdev->reg = ioremap(res->start, resource_size(res));
+ dev_set_drvdata(&pdev->dev, bdev);
+
+ error = input_register_polled_device(poll_dev);
+ if (error)
+ goto err_iounmap;
+
+ return 0;
+
+ err_iounmap:
+ iounmap(bdev->reg);
+ err_free_mem:
+ input_free_polled_device(poll_dev);
+ kfree(bdev);
+ dev_set_drvdata(&pdev->dev, NULL);
+ return error;
+}
+
+static int __devexit cobalt_buttons_remove(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct buttons_dev *bdev = dev_get_drvdata(dev);
+
+ input_unregister_polled_device(bdev->poll_dev);
+ input_free_polled_device(bdev->poll_dev);
+ iounmap(bdev->reg);
+ kfree(bdev);
+ dev_set_drvdata(dev, NULL);
+
+ return 0;
+}
+
+MODULE_AUTHOR("Yoichi Yuasa <yuasa@linux-mips.org>");
+MODULE_DESCRIPTION("Cobalt button interface driver");
+MODULE_LICENSE("GPL");
+/* work with hotplug and coldplug */
+MODULE_ALIAS("platform:Cobalt buttons");
+
+static struct platform_driver cobalt_buttons_driver = {
+ .probe = cobalt_buttons_probe,
+ .remove = __devexit_p(cobalt_buttons_remove),
+ .driver = {
+ .name = "Cobalt buttons",
+ .owner = THIS_MODULE,
+ },
+};
+
+static int __init cobalt_buttons_init(void)
+{
+ return platform_driver_register(&cobalt_buttons_driver);
+}
+
+static void __exit cobalt_buttons_exit(void)
+{
+ platform_driver_unregister(&cobalt_buttons_driver);
+}
+
+module_init(cobalt_buttons_init);
+module_exit(cobalt_buttons_exit);
diff --git a/drivers/input/misc/dm355evm_keys.c b/drivers/input/misc/dm355evm_keys.c
new file mode 100644
index 0000000..7283dd2
--- /dev/null
+++ b/drivers/input/misc/dm355evm_keys.c
@@ -0,0 +1,283 @@
+/*
+ * dm355evm_keys.c - support buttons and IR remote on DM355 EVM board
+ *
+ * Copyright (c) 2008 by David Brownell
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/input.h>
+#include <linux/input/sparse-keymap.h>
+#include <linux/platform_device.h>
+#include <linux/interrupt.h>
+
+#include <linux/i2c/dm355evm_msp.h>
+#include <linux/module.h>
+
+
+/*
+ * The MSP430 firmware on the DM355 EVM monitors on-board pushbuttons
+ * and an IR receptor used for the remote control. When any key is
+ * pressed, or its autorepeat kicks in, an event is sent. This driver
+ * read those events from the small (32 event) queue and reports them.
+ *
+ * Note that physically there can only be one of these devices.
+ *
+ * This driver was tested with firmware revision A4.
+ */
+struct dm355evm_keys {
+ struct input_dev *input;
+ struct device *dev;
+ int irq;
+};
+
+/* These initial keycodes can be remapped */
+static const struct key_entry dm355evm_keys[] = {
+ /*
+ * Pushbuttons on the EVM board ... note that the labels for these
+ * are SW10/SW11/etc on the PC board. The left/right orientation
+ * comes only from the firmware's documentation, and presumes the
+ * power connector is immediately in front of you and the IR sensor
+ * is to the right. (That is, rotate the board counter-clockwise
+ * by 90 degrees from the SW10/etc and "DM355 EVM" labels.)
+ */
+ { KE_KEY, 0x00d8, { KEY_OK } }, /* SW12 */
+ { KE_KEY, 0x00b8, { KEY_UP } }, /* SW13 */
+ { KE_KEY, 0x00e8, { KEY_DOWN } }, /* SW11 */
+ { KE_KEY, 0x0078, { KEY_LEFT } }, /* SW14 */
+ { KE_KEY, 0x00f0, { KEY_RIGHT } }, /* SW10 */
+
+ /*
+ * IR buttons ... codes assigned to match the universal remote
+ * provided with the EVM (Philips PM4S) using DVD code 0020.
+ *
+ * These event codes match firmware documentation, but other
+ * remote controls could easily send more RC5-encoded events.
+ * The PM4S manual was used in several cases to help select
+ * a keycode reflecting the intended usage.
+ *
+ * RC5 codes are 14 bits, with two start bits (0x3 prefix)
+ * and a toggle bit (masked out below).
+ */
+ { KE_KEY, 0x300c, { KEY_POWER } }, /* NOTE: docs omit this */
+ { KE_KEY, 0x3000, { KEY_NUMERIC_0 } },
+ { KE_KEY, 0x3001, { KEY_NUMERIC_1 } },
+ { KE_KEY, 0x3002, { KEY_NUMERIC_2 } },
+ { KE_KEY, 0x3003, { KEY_NUMERIC_3 } },
+ { KE_KEY, 0x3004, { KEY_NUMERIC_4 } },
+ { KE_KEY, 0x3005, { KEY_NUMERIC_5 } },
+ { KE_KEY, 0x3006, { KEY_NUMERIC_6 } },
+ { KE_KEY, 0x3007, { KEY_NUMERIC_7 } },
+ { KE_KEY, 0x3008, { KEY_NUMERIC_8 } },
+ { KE_KEY, 0x3009, { KEY_NUMERIC_9 } },
+ { KE_KEY, 0x3022, { KEY_ENTER } },
+ { KE_KEY, 0x30ec, { KEY_MODE } }, /* "tv/vcr/..." */
+ { KE_KEY, 0x300f, { KEY_SELECT } }, /* "info" */
+ { KE_KEY, 0x3020, { KEY_CHANNELUP } }, /* "up" */
+ { KE_KEY, 0x302e, { KEY_MENU } }, /* "in/out" */
+ { KE_KEY, 0x3011, { KEY_VOLUMEDOWN } }, /* "left" */
+ { KE_KEY, 0x300d, { KEY_MUTE } }, /* "ok" */
+ { KE_KEY, 0x3010, { KEY_VOLUMEUP } }, /* "right" */
+ { KE_KEY, 0x301e, { KEY_SUBTITLE } }, /* "cc" */
+ { KE_KEY, 0x3021, { KEY_CHANNELDOWN } },/* "down" */
+ { KE_KEY, 0x3022, { KEY_PREVIOUS } },
+ { KE_KEY, 0x3026, { KEY_SLEEP } },
+ { KE_KEY, 0x3172, { KEY_REWIND } }, /* NOTE: docs wrongly say 0x30ca */
+ { KE_KEY, 0x3175, { KEY_PLAY } },
+ { KE_KEY, 0x3174, { KEY_FASTFORWARD } },
+ { KE_KEY, 0x3177, { KEY_RECORD } },
+ { KE_KEY, 0x3176, { KEY_STOP } },
+ { KE_KEY, 0x3169, { KEY_PAUSE } },
+};
+
+/*
+ * Because we communicate with the MSP430 using I2C, and all I2C calls
+ * in Linux sleep, we use a threaded IRQ handler. The IRQ itself is
+ * active low, but we go through the GPIO controller so we can trigger
+ * on falling edges and not worry about enabling/disabling the IRQ in
+ * the keypress handling path.
+ */
+static irqreturn_t dm355evm_keys_irq(int irq, void *_keys)
+{
+ static u16 last_event;
+ struct dm355evm_keys *keys = _keys;
+ const struct key_entry *ke;
+ unsigned int keycode;
+ int status;
+ u16 event;
+
+ /* For simplicity we ignore INPUT_COUNT and just read
+ * events until we get the "queue empty" indicator.
+ * Reading INPUT_LOW decrements the count.
+ */
+ for (;;) {
+ status = dm355evm_msp_read(DM355EVM_MSP_INPUT_HIGH);
+ if (status < 0) {
+ dev_dbg(keys->dev, "input high err %d\n",
+ status);
+ break;
+ }
+ event = status << 8;
+
+ status = dm355evm_msp_read(DM355EVM_MSP_INPUT_LOW);
+ if (status < 0) {
+ dev_dbg(keys->dev, "input low err %d\n",
+ status);
+ break;
+ }
+ event |= status;
+ if (event == 0xdead)
+ break;
+
+ /* Press and release a button: two events, same code.
+ * Press and hold (autorepeat), then release: N events
+ * (N > 2), same code. For RC5 buttons the toggle bits
+ * distinguish (for example) "1-autorepeat" from "1 1";
+ * but PCB buttons don't support that bit.
+ *
+ * So we must synthesize release events. We do that by
+ * mapping events to a press/release event pair; then
+ * to avoid adding extra events, skip the second event
+ * of each pair.
+ */
+ if (event == last_event) {
+ last_event = 0;
+ continue;
+ }
+ last_event = event;
+
+ /* ignore the RC5 toggle bit */
+ event &= ~0x0800;
+
+ /* find the key, or report it as unknown */
+ ke = sparse_keymap_entry_from_scancode(keys->input, event);
+ keycode = ke ? ke->keycode : KEY_UNKNOWN;
+ dev_dbg(keys->dev,
+ "input event 0x%04x--> keycode %d\n",
+ event, keycode);
+
+ /* report press + release */
+ input_report_key(keys->input, keycode, 1);
+ input_sync(keys->input);
+ input_report_key(keys->input, keycode, 0);
+ input_sync(keys->input);
+ }
+
+ return IRQ_HANDLED;
+}
+
+/*----------------------------------------------------------------------*/
+
+static int __devinit dm355evm_keys_probe(struct platform_device *pdev)
+{
+ struct dm355evm_keys *keys;
+ struct input_dev *input;
+ int status;
+
+ /* allocate instance struct and input dev */
+ keys = kzalloc(sizeof *keys, GFP_KERNEL);
+ input = input_allocate_device();
+ if (!keys || !input) {
+ status = -ENOMEM;
+ goto fail1;
+ }
+
+ keys->dev = &pdev->dev;
+ keys->input = input;
+
+ /* set up "threaded IRQ handler" */
+ status = platform_get_irq(pdev, 0);
+ if (status < 0)
+ goto fail1;
+ keys->irq = status;
+
+ input_set_drvdata(input, keys);
+
+ input->name = "DM355 EVM Controls";
+ input->phys = "dm355evm/input0";
+ input->dev.parent = &pdev->dev;
+
+ input->id.bustype = BUS_I2C;
+ input->id.product = 0x0355;
+ input->id.version = dm355evm_msp_read(DM355EVM_MSP_FIRMREV);
+
+ status = sparse_keymap_setup(input, dm355evm_keys, NULL);
+ if (status)
+ goto fail1;
+
+ /* REVISIT: flush the event queue? */
+
+ status = request_threaded_irq(keys->irq, NULL, dm355evm_keys_irq,
+ IRQF_TRIGGER_FALLING, dev_name(&pdev->dev), keys);
+ if (status < 0)
+ goto fail2;
+
+ /* register */
+ status = input_register_device(input);
+ if (status < 0)
+ goto fail3;
+
+ platform_set_drvdata(pdev, keys);
+
+ return 0;
+
+fail3:
+ free_irq(keys->irq, keys);
+fail2:
+ sparse_keymap_free(input);
+fail1:
+ input_free_device(input);
+ kfree(keys);
+ dev_err(&pdev->dev, "can't register, err %d\n", status);
+
+ return status;
+}
+
+static int __devexit dm355evm_keys_remove(struct platform_device *pdev)
+{
+ struct dm355evm_keys *keys = platform_get_drvdata(pdev);
+
+ free_irq(keys->irq, keys);
+ sparse_keymap_free(keys->input);
+ input_unregister_device(keys->input);
+ kfree(keys);
+
+ return 0;
+}
+
+/* REVISIT: add suspend/resume when DaVinci supports it. The IRQ should
+ * be able to wake up the system. When device_may_wakeup(&pdev->dev), call
+ * enable_irq_wake() on suspend, and disable_irq_wake() on resume.
+ */
+
+/*
+ * I2C is used to talk to the MSP430, but this platform device is
+ * exposed by an MFD driver that manages I2C communications.
+ */
+static struct platform_driver dm355evm_keys_driver = {
+ .probe = dm355evm_keys_probe,
+ .remove = __devexit_p(dm355evm_keys_remove),
+ .driver = {
+ .owner = THIS_MODULE,
+ .name = "dm355evm_keys",
+ },
+};
+
+static int __init dm355evm_keys_init(void)
+{
+ return platform_driver_register(&dm355evm_keys_driver);
+}
+module_init(dm355evm_keys_init);
+
+static void __exit dm355evm_keys_exit(void)
+{
+ platform_driver_unregister(&dm355evm_keys_driver);
+}
+module_exit(dm355evm_keys_exit);
+
+MODULE_LICENSE("GPL");
diff --git a/drivers/input/misc/hp_sdc_rtc.c b/drivers/input/misc/hp_sdc_rtc.c
new file mode 100644
index 0000000..0b4f542
--- /dev/null
+++ b/drivers/input/misc/hp_sdc_rtc.c
@@ -0,0 +1,727 @@
+/*
+ * HP i8042 SDC + MSM-58321 BBRTC driver.
+ *
+ * Copyright (c) 2001 Brian S. Julin
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL").
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ *
+ * References:
+ * System Device Controller Microprocessor Firmware Theory of Operation
+ * for Part Number 1820-4784 Revision B. Dwg No. A-1820-4784-2
+ * efirtc.c by Stephane Eranian/Hewlett Packard
+ *
+ */
+
+#include <linux/hp_sdc.h>
+#include <linux/errno.h>
+#include <linux/types.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/time.h>
+#include <linux/miscdevice.h>
+#include <linux/proc_fs.h>
+#include <linux/poll.h>
+#include <linux/rtc.h>
+#include <linux/mutex.h>
+#include <linux/semaphore.h>
+
+MODULE_AUTHOR("Brian S. Julin <bri@calyx.com>");
+MODULE_DESCRIPTION("HP i8042 SDC + MSM-58321 RTC Driver");
+MODULE_LICENSE("Dual BSD/GPL");
+
+#define RTC_VERSION "1.10d"
+
+static DEFINE_MUTEX(hp_sdc_rtc_mutex);
+static unsigned long epoch = 2000;
+
+static struct semaphore i8042tregs;
+
+static hp_sdc_irqhook hp_sdc_rtc_isr;
+
+static struct fasync_struct *hp_sdc_rtc_async_queue;
+
+static DECLARE_WAIT_QUEUE_HEAD(hp_sdc_rtc_wait);
+
+static ssize_t hp_sdc_rtc_read(struct file *file, char __user *buf,
+ size_t count, loff_t *ppos);
+
+static long hp_sdc_rtc_unlocked_ioctl(struct file *file,
+ unsigned int cmd, unsigned long arg);
+
+static unsigned int hp_sdc_rtc_poll(struct file *file, poll_table *wait);
+
+static int hp_sdc_rtc_open(struct inode *inode, struct file *file);
+static int hp_sdc_rtc_fasync (int fd, struct file *filp, int on);
+
+static int hp_sdc_rtc_read_proc(char *page, char **start, off_t off,
+ int count, int *eof, void *data);
+
+static void hp_sdc_rtc_isr (int irq, void *dev_id,
+ uint8_t status, uint8_t data)
+{
+ return;
+}
+
+static int hp_sdc_rtc_do_read_bbrtc (struct rtc_time *rtctm)
+{
+ struct semaphore tsem;
+ hp_sdc_transaction t;
+ uint8_t tseq[91];
+ int i;
+
+ i = 0;
+ while (i < 91) {
+ tseq[i++] = HP_SDC_ACT_DATAREG |
+ HP_SDC_ACT_POSTCMD | HP_SDC_ACT_DATAIN;
+ tseq[i++] = 0x01; /* write i8042[0x70] */
+ tseq[i] = i / 7; /* BBRTC reg address */
+ i++;
+ tseq[i++] = HP_SDC_CMD_DO_RTCR; /* Trigger command */
+ tseq[i++] = 2; /* expect 1 stat/dat pair back. */
+ i++; i++; /* buffer for stat/dat pair */
+ }
+ tseq[84] |= HP_SDC_ACT_SEMAPHORE;
+ t.endidx = 91;
+ t.seq = tseq;
+ t.act.semaphore = &tsem;
+ sema_init(&tsem, 0);
+
+ if (hp_sdc_enqueue_transaction(&t)) return -1;
+
+ down_interruptible(&tsem); /* Put ourselves to sleep for results. */
+
+ /* Check for nonpresence of BBRTC */
+ if (!((tseq[83] | tseq[90] | tseq[69] | tseq[76] |
+ tseq[55] | tseq[62] | tseq[34] | tseq[41] |
+ tseq[20] | tseq[27] | tseq[6] | tseq[13]) & 0x0f))
+ return -1;
+
+ memset(rtctm, 0, sizeof(struct rtc_time));
+ rtctm->tm_year = (tseq[83] & 0x0f) + (tseq[90] & 0x0f) * 10;
+ rtctm->tm_mon = (tseq[69] & 0x0f) + (tseq[76] & 0x0f) * 10;
+ rtctm->tm_mday = (tseq[55] & 0x0f) + (tseq[62] & 0x0f) * 10;
+ rtctm->tm_wday = (tseq[48] & 0x0f);
+ rtctm->tm_hour = (tseq[34] & 0x0f) + (tseq[41] & 0x0f) * 10;
+ rtctm->tm_min = (tseq[20] & 0x0f) + (tseq[27] & 0x0f) * 10;
+ rtctm->tm_sec = (tseq[6] & 0x0f) + (tseq[13] & 0x0f) * 10;
+
+ return 0;
+}
+
+static int hp_sdc_rtc_read_bbrtc (struct rtc_time *rtctm)
+{
+ struct rtc_time tm, tm_last;
+ int i = 0;
+
+ /* MSM-58321 has no read latch, so must read twice and compare. */
+
+ if (hp_sdc_rtc_do_read_bbrtc(&tm_last)) return -1;
+ if (hp_sdc_rtc_do_read_bbrtc(&tm)) return -1;
+
+ while (memcmp(&tm, &tm_last, sizeof(struct rtc_time))) {
+ if (i++ > 4) return -1;
+ memcpy(&tm_last, &tm, sizeof(struct rtc_time));
+ if (hp_sdc_rtc_do_read_bbrtc(&tm)) return -1;
+ }
+
+ memcpy(rtctm, &tm, sizeof(struct rtc_time));
+
+ return 0;
+}
+
+
+static int64_t hp_sdc_rtc_read_i8042timer (uint8_t loadcmd, int numreg)
+{
+ hp_sdc_transaction t;
+ uint8_t tseq[26] = {
+ HP_SDC_ACT_PRECMD | HP_SDC_ACT_POSTCMD | HP_SDC_ACT_DATAIN,
+ 0,
+ HP_SDC_CMD_READ_T1, 2, 0, 0,
+ HP_SDC_ACT_POSTCMD | HP_SDC_ACT_DATAIN,
+ HP_SDC_CMD_READ_T2, 2, 0, 0,
+ HP_SDC_ACT_POSTCMD | HP_SDC_ACT_DATAIN,
+ HP_SDC_CMD_READ_T3, 2, 0, 0,
+ HP_SDC_ACT_POSTCMD | HP_SDC_ACT_DATAIN,
+ HP_SDC_CMD_READ_T4, 2, 0, 0,
+ HP_SDC_ACT_POSTCMD | HP_SDC_ACT_DATAIN,
+ HP_SDC_CMD_READ_T5, 2, 0, 0
+ };
+
+ t.endidx = numreg * 5;
+
+ tseq[1] = loadcmd;
+ tseq[t.endidx - 4] |= HP_SDC_ACT_SEMAPHORE; /* numreg assumed > 1 */
+
+ t.seq = tseq;
+ t.act.semaphore = &i8042tregs;
+
+ down_interruptible(&i8042tregs); /* Sleep if output regs in use. */
+
+ if (hp_sdc_enqueue_transaction(&t)) return -1;
+
+ down_interruptible(&i8042tregs); /* Sleep until results come back. */
+ up(&i8042tregs);
+
+ return (tseq[5] |
+ ((uint64_t)(tseq[10]) << 8) | ((uint64_t)(tseq[15]) << 16) |
+ ((uint64_t)(tseq[20]) << 24) | ((uint64_t)(tseq[25]) << 32));
+}
+
+
+/* Read the i8042 real-time clock */
+static inline int hp_sdc_rtc_read_rt(struct timeval *res) {
+ int64_t raw;
+ uint32_t tenms;
+ unsigned int days;
+
+ raw = hp_sdc_rtc_read_i8042timer(HP_SDC_CMD_LOAD_RT, 5);
+ if (raw < 0) return -1;
+
+ tenms = (uint32_t)raw & 0xffffff;
+ days = (unsigned int)(raw >> 24) & 0xffff;
+
+ res->tv_usec = (suseconds_t)(tenms % 100) * 10000;
+ res->tv_sec = (time_t)(tenms / 100) + days * 86400;
+
+ return 0;
+}
+
+
+/* Read the i8042 fast handshake timer */
+static inline int hp_sdc_rtc_read_fhs(struct timeval *res) {
+ int64_t raw;
+ unsigned int tenms;
+
+ raw = hp_sdc_rtc_read_i8042timer(HP_SDC_CMD_LOAD_FHS, 2);
+ if (raw < 0) return -1;
+
+ tenms = (unsigned int)raw & 0xffff;
+
+ res->tv_usec = (suseconds_t)(tenms % 100) * 10000;
+ res->tv_sec = (time_t)(tenms / 100);
+
+ return 0;
+}
+
+
+/* Read the i8042 match timer (a.k.a. alarm) */
+static inline int hp_sdc_rtc_read_mt(struct timeval *res) {
+ int64_t raw;
+ uint32_t tenms;
+
+ raw = hp_sdc_rtc_read_i8042timer(HP_SDC_CMD_LOAD_MT, 3);
+ if (raw < 0) return -1;
+
+ tenms = (uint32_t)raw & 0xffffff;
+
+ res->tv_usec = (suseconds_t)(tenms % 100) * 10000;
+ res->tv_sec = (time_t)(tenms / 100);
+
+ return 0;
+}
+
+
+/* Read the i8042 delay timer */
+static inline int hp_sdc_rtc_read_dt(struct timeval *res) {
+ int64_t raw;
+ uint32_t tenms;
+
+ raw = hp_sdc_rtc_read_i8042timer(HP_SDC_CMD_LOAD_DT, 3);
+ if (raw < 0) return -1;
+
+ tenms = (uint32_t)raw & 0xffffff;
+
+ res->tv_usec = (suseconds_t)(tenms % 100) * 10000;
+ res->tv_sec = (time_t)(tenms / 100);
+
+ return 0;
+}
+
+
+/* Read the i8042 cycle timer (a.k.a. periodic) */
+static inline int hp_sdc_rtc_read_ct(struct timeval *res) {
+ int64_t raw;
+ uint32_t tenms;
+
+ raw = hp_sdc_rtc_read_i8042timer(HP_SDC_CMD_LOAD_CT, 3);
+ if (raw < 0) return -1;
+
+ tenms = (uint32_t)raw & 0xffffff;
+
+ res->tv_usec = (suseconds_t)(tenms % 100) * 10000;
+ res->tv_sec = (time_t)(tenms / 100);
+
+ return 0;
+}
+
+
+/* Set the i8042 real-time clock */
+static int hp_sdc_rtc_set_rt (struct timeval *setto)
+{
+ uint32_t tenms;
+ unsigned int days;
+ hp_sdc_transaction t;
+ uint8_t tseq[11] = {
+ HP_SDC_ACT_PRECMD | HP_SDC_ACT_DATAOUT,
+ HP_SDC_CMD_SET_RTMS, 3, 0, 0, 0,
+ HP_SDC_ACT_PRECMD | HP_SDC_ACT_DATAOUT,
+ HP_SDC_CMD_SET_RTD, 2, 0, 0
+ };
+
+ t.endidx = 10;
+
+ if (0xffff < setto->tv_sec / 86400) return -1;
+ days = setto->tv_sec / 86400;
+ if (0xffff < setto->tv_usec / 1000000 / 86400) return -1;
+ days += ((setto->tv_sec % 86400) + setto->tv_usec / 1000000) / 86400;
+ if (days > 0xffff) return -1;
+
+ if (0xffffff < setto->tv_sec) return -1;
+ tenms = setto->tv_sec * 100;
+ if (0xffffff < setto->tv_usec / 10000) return -1;
+ tenms += setto->tv_usec / 10000;
+ if (tenms > 0xffffff) return -1;
+
+ tseq[3] = (uint8_t)(tenms & 0xff);
+ tseq[4] = (uint8_t)((tenms >> 8) & 0xff);
+ tseq[5] = (uint8_t)((tenms >> 16) & 0xff);
+
+ tseq[9] = (uint8_t)(days & 0xff);
+ tseq[10] = (uint8_t)((days >> 8) & 0xff);
+
+ t.seq = tseq;
+
+ if (hp_sdc_enqueue_transaction(&t)) return -1;
+ return 0;
+}
+
+/* Set the i8042 fast handshake timer */
+static int hp_sdc_rtc_set_fhs (struct timeval *setto)
+{
+ uint32_t tenms;
+ hp_sdc_transaction t;
+ uint8_t tseq[5] = {
+ HP_SDC_ACT_PRECMD | HP_SDC_ACT_DATAOUT,
+ HP_SDC_CMD_SET_FHS, 2, 0, 0
+ };
+
+ t.endidx = 4;
+
+ if (0xffff < setto->tv_sec) return -1;
+ tenms = setto->tv_sec * 100;
+ if (0xffff < setto->tv_usec / 10000) return -1;
+ tenms += setto->tv_usec / 10000;
+ if (tenms > 0xffff) return -1;
+
+ tseq[3] = (uint8_t)(tenms & 0xff);
+ tseq[4] = (uint8_t)((tenms >> 8) & 0xff);
+
+ t.seq = tseq;
+
+ if (hp_sdc_enqueue_transaction(&t)) return -1;
+ return 0;
+}
+
+
+/* Set the i8042 match timer (a.k.a. alarm) */
+#define hp_sdc_rtc_set_mt (setto) \
+ hp_sdc_rtc_set_i8042timer(setto, HP_SDC_CMD_SET_MT)
+
+/* Set the i8042 delay timer */
+#define hp_sdc_rtc_set_dt (setto) \
+ hp_sdc_rtc_set_i8042timer(setto, HP_SDC_CMD_SET_DT)
+
+/* Set the i8042 cycle timer (a.k.a. periodic) */
+#define hp_sdc_rtc_set_ct (setto) \
+ hp_sdc_rtc_set_i8042timer(setto, HP_SDC_CMD_SET_CT)
+
+/* Set one of the i8042 3-byte wide timers */
+static int hp_sdc_rtc_set_i8042timer (struct timeval *setto, uint8_t setcmd)
+{
+ uint32_t tenms;
+ hp_sdc_transaction t;
+ uint8_t tseq[6] = {
+ HP_SDC_ACT_PRECMD | HP_SDC_ACT_DATAOUT,
+ 0, 3, 0, 0, 0
+ };
+
+ t.endidx = 6;
+
+ if (0xffffff < setto->tv_sec) return -1;
+ tenms = setto->tv_sec * 100;
+ if (0xffffff < setto->tv_usec / 10000) return -1;
+ tenms += setto->tv_usec / 10000;
+ if (tenms > 0xffffff) return -1;
+
+ tseq[1] = setcmd;
+ tseq[3] = (uint8_t)(tenms & 0xff);
+ tseq[4] = (uint8_t)((tenms >> 8) & 0xff);
+ tseq[5] = (uint8_t)((tenms >> 16) & 0xff);
+
+ t.seq = tseq;
+
+ if (hp_sdc_enqueue_transaction(&t)) {
+ return -1;
+ }
+ return 0;
+}
+
+static ssize_t hp_sdc_rtc_read(struct file *file, char __user *buf,
+ size_t count, loff_t *ppos) {
+ ssize_t retval;
+
+ if (count < sizeof(unsigned long))
+ return -EINVAL;
+
+ retval = put_user(68, (unsigned long __user *)buf);
+ return retval;
+}
+
+static unsigned int hp_sdc_rtc_poll(struct file *file, poll_table *wait)
+{
+ unsigned long l;
+
+ l = 0;
+ if (l != 0)
+ return POLLIN | POLLRDNORM;
+ return 0;
+}
+
+static int hp_sdc_rtc_open(struct inode *inode, struct file *file)
+{
+ return 0;
+}
+
+static int hp_sdc_rtc_fasync (int fd, struct file *filp, int on)
+{
+ return fasync_helper (fd, filp, on, &hp_sdc_rtc_async_queue);
+}
+
+static int hp_sdc_rtc_proc_output (char *buf)
+{
+#define YN(bit) ("no")
+#define NY(bit) ("yes")
+ char *p;
+ struct rtc_time tm;
+ struct timeval tv;
+
+ memset(&tm, 0, sizeof(struct rtc_time));
+
+ p = buf;
+
+ if (hp_sdc_rtc_read_bbrtc(&tm)) {
+ p += sprintf(p, "BBRTC\t\t: READ FAILED!\n");
+ } else {
+ p += sprintf(p,
+ "rtc_time\t: %02d:%02d:%02d\n"
+ "rtc_date\t: %04d-%02d-%02d\n"
+ "rtc_epoch\t: %04lu\n",
+ tm.tm_hour, tm.tm_min, tm.tm_sec,
+ tm.tm_year + 1900, tm.tm_mon + 1,
+ tm.tm_mday, epoch);
+ }
+
+ if (hp_sdc_rtc_read_rt(&tv)) {
+ p += sprintf(p, "i8042 rtc\t: READ FAILED!\n");
+ } else {
+ p += sprintf(p, "i8042 rtc\t: %ld.%02d seconds\n",
+ tv.tv_sec, (int)tv.tv_usec/1000);
+ }
+
+ if (hp_sdc_rtc_read_fhs(&tv)) {
+ p += sprintf(p, "handshake\t: READ FAILED!\n");
+ } else {
+ p += sprintf(p, "handshake\t: %ld.%02d seconds\n",
+ tv.tv_sec, (int)tv.tv_usec/1000);
+ }
+
+ if (hp_sdc_rtc_read_mt(&tv)) {
+ p += sprintf(p, "alarm\t\t: READ FAILED!\n");
+ } else {
+ p += sprintf(p, "alarm\t\t: %ld.%02d seconds\n",
+ tv.tv_sec, (int)tv.tv_usec/1000);
+ }
+
+ if (hp_sdc_rtc_read_dt(&tv)) {
+ p += sprintf(p, "delay\t\t: READ FAILED!\n");
+ } else {
+ p += sprintf(p, "delay\t\t: %ld.%02d seconds\n",
+ tv.tv_sec, (int)tv.tv_usec/1000);
+ }
+
+ if (hp_sdc_rtc_read_ct(&tv)) {
+ p += sprintf(p, "periodic\t: READ FAILED!\n");
+ } else {
+ p += sprintf(p, "periodic\t: %ld.%02d seconds\n",
+ tv.tv_sec, (int)tv.tv_usec/1000);
+ }
+
+ p += sprintf(p,
+ "DST_enable\t: %s\n"
+ "BCD\t\t: %s\n"
+ "24hr\t\t: %s\n"
+ "square_wave\t: %s\n"
+ "alarm_IRQ\t: %s\n"
+ "update_IRQ\t: %s\n"
+ "periodic_IRQ\t: %s\n"
+ "periodic_freq\t: %ld\n"
+ "batt_status\t: %s\n",
+ YN(RTC_DST_EN),
+ NY(RTC_DM_BINARY),
+ YN(RTC_24H),
+ YN(RTC_SQWE),
+ YN(RTC_AIE),
+ YN(RTC_UIE),
+ YN(RTC_PIE),
+ 1UL,
+ 1 ? "okay" : "dead");
+
+ return p - buf;
+#undef YN
+#undef NY
+}
+
+static int hp_sdc_rtc_read_proc(char *page, char **start, off_t off,
+ int count, int *eof, void *data)
+{
+ int len = hp_sdc_rtc_proc_output (page);
+ if (len <= off+count) *eof = 1;
+ *start = page + off;
+ len -= off;
+ if (len>count) len = count;
+ if (len<0) len = 0;
+ return len;
+}
+
+static int hp_sdc_rtc_ioctl(struct file *file,
+ unsigned int cmd, unsigned long arg)
+{
+#if 1
+ return -EINVAL;
+#else
+
+ struct rtc_time wtime;
+ struct timeval ttime;
+ int use_wtime = 0;
+
+ /* This needs major work. */
+
+ switch (cmd) {
+
+ case RTC_AIE_OFF: /* Mask alarm int. enab. bit */
+ case RTC_AIE_ON: /* Allow alarm interrupts. */
+ case RTC_PIE_OFF: /* Mask periodic int. enab. bit */
+ case RTC_PIE_ON: /* Allow periodic ints */
+ case RTC_UIE_ON: /* Allow ints for RTC updates. */
+ case RTC_UIE_OFF: /* Allow ints for RTC updates. */
+ {
+ /* We cannot mask individual user timers and we
+ cannot tell them apart when they occur, so it
+ would be disingenuous to succeed these IOCTLs */
+ return -EINVAL;
+ }
+ case RTC_ALM_READ: /* Read the present alarm time */
+ {
+ if (hp_sdc_rtc_read_mt(&ttime)) return -EFAULT;
+ if (hp_sdc_rtc_read_bbrtc(&wtime)) return -EFAULT;
+
+ wtime.tm_hour = ttime.tv_sec / 3600; ttime.tv_sec %= 3600;
+ wtime.tm_min = ttime.tv_sec / 60; ttime.tv_sec %= 60;
+ wtime.tm_sec = ttime.tv_sec;
+
+ break;
+ }
+ case RTC_IRQP_READ: /* Read the periodic IRQ rate. */
+ {
+ return put_user(hp_sdc_rtc_freq, (unsigned long *)arg);
+ }
+ case RTC_IRQP_SET: /* Set periodic IRQ rate. */
+ {
+ /*
+ * The max we can do is 100Hz.
+ */
+
+ if ((arg < 1) || (arg > 100)) return -EINVAL;
+ ttime.tv_sec = 0;
+ ttime.tv_usec = 1000000 / arg;
+ if (hp_sdc_rtc_set_ct(&ttime)) return -EFAULT;
+ hp_sdc_rtc_freq = arg;
+ return 0;
+ }
+ case RTC_ALM_SET: /* Store a time into the alarm */
+ {
+ /*
+ * This expects a struct hp_sdc_rtc_time. Writing 0xff means
+ * "don't care" or "match all" for PC timers. The HP SDC
+ * does not support that perk, but it could be emulated fairly
+ * easily. Only the tm_hour, tm_min and tm_sec are used.
+ * We could do it with 10ms accuracy with the HP SDC, if the
+ * rtc interface left us a way to do that.
+ */
+ struct hp_sdc_rtc_time alm_tm;
+
+ if (copy_from_user(&alm_tm, (struct hp_sdc_rtc_time*)arg,
+ sizeof(struct hp_sdc_rtc_time)))
+ return -EFAULT;
+
+ if (alm_tm.tm_hour > 23) return -EINVAL;
+ if (alm_tm.tm_min > 59) return -EINVAL;
+ if (alm_tm.tm_sec > 59) return -EINVAL;
+
+ ttime.sec = alm_tm.tm_hour * 3600 +
+ alm_tm.tm_min * 60 + alm_tm.tm_sec;
+ ttime.usec = 0;
+ if (hp_sdc_rtc_set_mt(&ttime)) return -EFAULT;
+ return 0;
+ }
+ case RTC_RD_TIME: /* Read the time/date from RTC */
+ {
+ if (hp_sdc_rtc_read_bbrtc(&wtime)) return -EFAULT;
+ break;
+ }
+ case RTC_SET_TIME: /* Set the RTC */
+ {
+ struct rtc_time hp_sdc_rtc_tm;
+ unsigned char mon, day, hrs, min, sec, leap_yr;
+ unsigned int yrs;
+
+ if (!capable(CAP_SYS_TIME))
+ return -EACCES;
+ if (copy_from_user(&hp_sdc_rtc_tm, (struct rtc_time *)arg,
+ sizeof(struct rtc_time)))
+ return -EFAULT;
+
+ yrs = hp_sdc_rtc_tm.tm_year + 1900;
+ mon = hp_sdc_rtc_tm.tm_mon + 1; /* tm_mon starts at zero */
+ day = hp_sdc_rtc_tm.tm_mday;
+ hrs = hp_sdc_rtc_tm.tm_hour;
+ min = hp_sdc_rtc_tm.tm_min;
+ sec = hp_sdc_rtc_tm.tm_sec;
+
+ if (yrs < 1970)
+ return -EINVAL;
+
+ leap_yr = ((!(yrs % 4) && (yrs % 100)) || !(yrs % 400));
+
+ if ((mon > 12) || (day == 0))
+ return -EINVAL;
+ if (day > (days_in_mo[mon] + ((mon == 2) && leap_yr)))
+ return -EINVAL;
+ if ((hrs >= 24) || (min >= 60) || (sec >= 60))
+ return -EINVAL;
+
+ if ((yrs -= eH) > 255) /* They are unsigned */
+ return -EINVAL;
+
+
+ return 0;
+ }
+ case RTC_EPOCH_READ: /* Read the epoch. */
+ {
+ return put_user (epoch, (unsigned long *)arg);
+ }
+ case RTC_EPOCH_SET: /* Set the epoch. */
+ {
+ /*
+ * There were no RTC clocks before 1900.
+ */
+ if (arg < 1900)
+ return -EINVAL;
+ if (!capable(CAP_SYS_TIME))
+ return -EACCES;
+
+ epoch = arg;
+ return 0;
+ }
+ default:
+ return -EINVAL;
+ }
+ return copy_to_user((void *)arg, &wtime, sizeof wtime) ? -EFAULT : 0;
+#endif
+}
+
+static long hp_sdc_rtc_unlocked_ioctl(struct file *file,
+ unsigned int cmd, unsigned long arg)
+{
+ int ret;
+
+ mutex_lock(&hp_sdc_rtc_mutex);
+ ret = hp_sdc_rtc_ioctl(file, cmd, arg);
+ mutex_unlock(&hp_sdc_rtc_mutex);
+
+ return ret;
+}
+
+
+static const struct file_operations hp_sdc_rtc_fops = {
+ .owner = THIS_MODULE,
+ .llseek = no_llseek,
+ .read = hp_sdc_rtc_read,
+ .poll = hp_sdc_rtc_poll,
+ .unlocked_ioctl = hp_sdc_rtc_unlocked_ioctl,
+ .open = hp_sdc_rtc_open,
+ .fasync = hp_sdc_rtc_fasync,
+};
+
+static struct miscdevice hp_sdc_rtc_dev = {
+ .minor = RTC_MINOR,
+ .name = "rtc_HIL",
+ .fops = &hp_sdc_rtc_fops
+};
+
+static int __init hp_sdc_rtc_init(void)
+{
+ int ret;
+
+#ifdef __mc68000__
+ if (!MACH_IS_HP300)
+ return -ENODEV;
+#endif
+
+ sema_init(&i8042tregs, 1);
+
+ if ((ret = hp_sdc_request_timer_irq(&hp_sdc_rtc_isr)))
+ return ret;
+ if (misc_register(&hp_sdc_rtc_dev) != 0)
+ printk(KERN_INFO "Could not register misc. dev for i8042 rtc\n");
+
+ create_proc_read_entry ("driver/rtc", 0, NULL,
+ hp_sdc_rtc_read_proc, NULL);
+
+ printk(KERN_INFO "HP i8042 SDC + MSM-58321 RTC support loaded "
+ "(RTC v " RTC_VERSION ")\n");
+
+ return 0;
+}
+
+static void __exit hp_sdc_rtc_exit(void)
+{
+ remove_proc_entry ("driver/rtc", NULL);
+ misc_deregister(&hp_sdc_rtc_dev);
+ hp_sdc_release_timer_irq(hp_sdc_rtc_isr);
+ printk(KERN_INFO "HP i8042 SDC + MSM-58321 RTC support unloaded\n");
+}
+
+module_init(hp_sdc_rtc_init);
+module_exit(hp_sdc_rtc_exit);
diff --git a/drivers/input/misc/ixp4xx-beeper.c b/drivers/input/misc/ixp4xx-beeper.c
new file mode 100644
index 0000000..302ab46
--- /dev/null
+++ b/drivers/input/misc/ixp4xx-beeper.c
@@ -0,0 +1,183 @@
+/*
+ * Generic IXP4xx beeper driver
+ *
+ * Copyright (C) 2005 Tower Technologies
+ *
+ * based on nslu2-io.c
+ * Copyright (C) 2004 Karen Spearel
+ *
+ * Author: Alessandro Zummo <a.zummo@towertech.it>
+ * Maintainers: http://www.nslu2-linux.org/
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/input.h>
+#include <linux/delay.h>
+#include <linux/platform_device.h>
+#include <linux/interrupt.h>
+#include <mach/hardware.h>
+
+MODULE_AUTHOR("Alessandro Zummo <a.zummo@towertech.it>");
+MODULE_DESCRIPTION("ixp4xx beeper driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:ixp4xx-beeper");
+
+static DEFINE_SPINLOCK(beep_lock);
+
+static void ixp4xx_spkr_control(unsigned int pin, unsigned int count)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&beep_lock, flags);
+
+ if (count) {
+ gpio_line_config(pin, IXP4XX_GPIO_OUT);
+ gpio_line_set(pin, IXP4XX_GPIO_LOW);
+
+ *IXP4XX_OSRT2 = (count & ~IXP4XX_OST_RELOAD_MASK) | IXP4XX_OST_ENABLE;
+ } else {
+ gpio_line_config(pin, IXP4XX_GPIO_IN);
+ gpio_line_set(pin, IXP4XX_GPIO_HIGH);
+
+ *IXP4XX_OSRT2 = 0;
+ }
+
+ spin_unlock_irqrestore(&beep_lock, flags);
+}
+
+static int ixp4xx_spkr_event(struct input_dev *dev, unsigned int type, unsigned int code, int value)
+{
+ unsigned int pin = (unsigned int) input_get_drvdata(dev);
+ unsigned int count = 0;
+
+ if (type != EV_SND)
+ return -1;
+
+ switch (code) {
+ case SND_BELL:
+ if (value)
+ value = 1000;
+ case SND_TONE:
+ break;
+ default:
+ return -1;
+ }
+
+ if (value > 20 && value < 32767)
+ count = (IXP4XX_TIMER_FREQ / (value * 4)) - 1;
+
+ ixp4xx_spkr_control(pin, count);
+
+ return 0;
+}
+
+static irqreturn_t ixp4xx_spkr_interrupt(int irq, void *dev_id)
+{
+ /* clear interrupt */
+ *IXP4XX_OSST = IXP4XX_OSST_TIMER_2_PEND;
+
+ /* flip the beeper output */
+ *IXP4XX_GPIO_GPOUTR ^= (1 << (unsigned int) dev_id);
+
+ return IRQ_HANDLED;
+}
+
+static int __devinit ixp4xx_spkr_probe(struct platform_device *dev)
+{
+ struct input_dev *input_dev;
+ int err;
+
+ input_dev = input_allocate_device();
+ if (!input_dev)
+ return -ENOMEM;
+
+ input_set_drvdata(input_dev, (void *) dev->id);
+
+ input_dev->name = "ixp4xx beeper",
+ input_dev->phys = "ixp4xx/gpio";
+ input_dev->id.bustype = BUS_HOST;
+ input_dev->id.vendor = 0x001f;
+ input_dev->id.product = 0x0001;
+ input_dev->id.version = 0x0100;
+ input_dev->dev.parent = &dev->dev;
+
+ input_dev->evbit[0] = BIT_MASK(EV_SND);
+ input_dev->sndbit[0] = BIT_MASK(SND_BELL) | BIT_MASK(SND_TONE);
+ input_dev->event = ixp4xx_spkr_event;
+
+ err = request_irq(IRQ_IXP4XX_TIMER2, &ixp4xx_spkr_interrupt,
+ IRQF_NO_SUSPEND, "ixp4xx-beeper",
+ (void *) dev->id);
+ if (err)
+ goto err_free_device;
+
+ err = input_register_device(input_dev);
+ if (err)
+ goto err_free_irq;
+
+ platform_set_drvdata(dev, input_dev);
+
+ return 0;
+
+ err_free_irq:
+ free_irq(IRQ_IXP4XX_TIMER2, dev);
+ err_free_device:
+ input_free_device(input_dev);
+
+ return err;
+}
+
+static int __devexit ixp4xx_spkr_remove(struct platform_device *dev)
+{
+ struct input_dev *input_dev = platform_get_drvdata(dev);
+ unsigned int pin = (unsigned int) input_get_drvdata(input_dev);
+
+ input_unregister_device(input_dev);
+ platform_set_drvdata(dev, NULL);
+
+ /* turn the speaker off */
+ disable_irq(IRQ_IXP4XX_TIMER2);
+ ixp4xx_spkr_control(pin, 0);
+
+ free_irq(IRQ_IXP4XX_TIMER2, dev);
+
+ return 0;
+}
+
+static void ixp4xx_spkr_shutdown(struct platform_device *dev)
+{
+ struct input_dev *input_dev = platform_get_drvdata(dev);
+ unsigned int pin = (unsigned int) input_get_drvdata(input_dev);
+
+ /* turn off the speaker */
+ disable_irq(IRQ_IXP4XX_TIMER2);
+ ixp4xx_spkr_control(pin, 0);
+}
+
+static struct platform_driver ixp4xx_spkr_platform_driver = {
+ .driver = {
+ .name = "ixp4xx-beeper",
+ .owner = THIS_MODULE,
+ },
+ .probe = ixp4xx_spkr_probe,
+ .remove = __devexit_p(ixp4xx_spkr_remove),
+ .shutdown = ixp4xx_spkr_shutdown,
+};
+
+static int __init ixp4xx_spkr_init(void)
+{
+ return platform_driver_register(&ixp4xx_spkr_platform_driver);
+}
+
+static void __exit ixp4xx_spkr_exit(void)
+{
+ platform_driver_unregister(&ixp4xx_spkr_platform_driver);
+}
+
+module_init(ixp4xx_spkr_init);
+module_exit(ixp4xx_spkr_exit);
diff --git a/drivers/input/misc/keyspan_remote.c b/drivers/input/misc/keyspan_remote.c
new file mode 100644
index 0000000..fc62256
--- /dev/null
+++ b/drivers/input/misc/keyspan_remote.c
@@ -0,0 +1,607 @@
+/*
+ * keyspan_remote: USB driver for the Keyspan DMR
+ *
+ * Copyright (C) 2005 Zymeta Corporation - Michael Downey (downey@zymeta.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation, version 2.
+ *
+ * This driver has been put together with the support of Innosys, Inc.
+ * and Keyspan, Inc the manufacturers of the Keyspan USB DMR product.
+ */
+
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/usb/input.h>
+
+#define DRIVER_VERSION "v0.1"
+#define DRIVER_AUTHOR "Michael Downey <downey@zymeta.com>"
+#define DRIVER_DESC "Driver for the USB Keyspan remote control."
+#define DRIVER_LICENSE "GPL"
+
+/* Parameters that can be passed to the driver. */
+static int debug;
+module_param(debug, int, 0444);
+MODULE_PARM_DESC(debug, "Enable extra debug messages and information");
+
+/* Vendor and product ids */
+#define USB_KEYSPAN_VENDOR_ID 0x06CD
+#define USB_KEYSPAN_PRODUCT_UIA11 0x0202
+
+/* Defines for converting the data from the remote. */
+#define ZERO 0x18
+#define ZERO_MASK 0x1F /* 5 bits for a 0 */
+#define ONE 0x3C
+#define ONE_MASK 0x3F /* 6 bits for a 1 */
+#define SYNC 0x3F80
+#define SYNC_MASK 0x3FFF /* 14 bits for a SYNC sequence */
+#define STOP 0x00
+#define STOP_MASK 0x1F /* 5 bits for the STOP sequence */
+#define GAP 0xFF
+
+#define RECV_SIZE 8 /* The UIA-11 type have a 8 byte limit. */
+
+/*
+ * Table that maps the 31 possible keycodes to input keys.
+ * Currently there are 15 and 17 button models so RESERVED codes
+ * are blank areas in the mapping.
+ */
+static const unsigned short keyspan_key_table[] = {
+ KEY_RESERVED, /* 0 is just a place holder. */
+ KEY_RESERVED,
+ KEY_STOP,
+ KEY_PLAYCD,
+ KEY_RESERVED,
+ KEY_PREVIOUSSONG,
+ KEY_REWIND,
+ KEY_FORWARD,
+ KEY_NEXTSONG,
+ KEY_RESERVED,
+ KEY_RESERVED,
+ KEY_RESERVED,
+ KEY_PAUSE,
+ KEY_VOLUMEUP,
+ KEY_RESERVED,
+ KEY_RESERVED,
+ KEY_RESERVED,
+ KEY_VOLUMEDOWN,
+ KEY_RESERVED,
+ KEY_UP,
+ KEY_RESERVED,
+ KEY_MUTE,
+ KEY_LEFT,
+ KEY_ENTER,
+ KEY_RIGHT,
+ KEY_RESERVED,
+ KEY_RESERVED,
+ KEY_DOWN,
+ KEY_RESERVED,
+ KEY_KPASTERISK,
+ KEY_RESERVED,
+ KEY_MENU
+};
+
+/* table of devices that work with this driver */
+static struct usb_device_id keyspan_table[] = {
+ { USB_DEVICE(USB_KEYSPAN_VENDOR_ID, USB_KEYSPAN_PRODUCT_UIA11) },
+ { } /* Terminating entry */
+};
+
+/* Structure to store all the real stuff that a remote sends to us. */
+struct keyspan_message {
+ u16 system;
+ u8 button;
+ u8 toggle;
+};
+
+/* Structure used for all the bit testing magic needed to be done. */
+struct bit_tester {
+ u32 tester;
+ int len;
+ int pos;
+ int bits_left;
+ u8 buffer[32];
+};
+
+/* Structure to hold all of our driver specific stuff */
+struct usb_keyspan {
+ char name[128];
+ char phys[64];
+ unsigned short keymap[ARRAY_SIZE(keyspan_key_table)];
+ struct usb_device *udev;
+ struct input_dev *input;
+ struct usb_interface *interface;
+ struct usb_endpoint_descriptor *in_endpoint;
+ struct urb* irq_urb;
+ int open;
+ dma_addr_t in_dma;
+ unsigned char *in_buffer;
+
+ /* variables used to parse messages from remote. */
+ struct bit_tester data;
+ int stage;
+ int toggle;
+};
+
+static struct usb_driver keyspan_driver;
+
+/*
+ * Debug routine that prints out what we've received from the remote.
+ */
+static void keyspan_print(struct usb_keyspan* dev) /*unsigned char* data)*/
+{
+ char codes[4 * RECV_SIZE];
+ int i;
+
+ for (i = 0; i < RECV_SIZE; i++)
+ snprintf(codes + i * 3, 4, "%02x ", dev->in_buffer[i]);
+
+ dev_info(&dev->udev->dev, "%s\n", codes);
+}
+
+/*
+ * Routine that manages the bit_tester structure. It makes sure that there are
+ * at least bits_needed bits loaded into the tester.
+ */
+static int keyspan_load_tester(struct usb_keyspan* dev, int bits_needed)
+{
+ if (dev->data.bits_left >= bits_needed)
+ return 0;
+
+ /*
+ * Somehow we've missed the last message. The message will be repeated
+ * though so it's not too big a deal
+ */
+ if (dev->data.pos >= dev->data.len) {
+ dev_dbg(&dev->udev->dev,
+ "%s - Error ran out of data. pos: %d, len: %d\n",
+ __func__, dev->data.pos, dev->data.len);
+ return -1;
+ }
+
+ /* Load as much as we can into the tester. */
+ while ((dev->data.bits_left + 7 < (sizeof(dev->data.tester) * 8)) &&
+ (dev->data.pos < dev->data.len)) {
+ dev->data.tester += (dev->data.buffer[dev->data.pos++] << dev->data.bits_left);
+ dev->data.bits_left += 8;
+ }
+
+ return 0;
+}
+
+static void keyspan_report_button(struct usb_keyspan *remote, int button, int press)
+{
+ struct input_dev *input = remote->input;
+
+ input_event(input, EV_MSC, MSC_SCAN, button);
+ input_report_key(input, remote->keymap[button], press);
+ input_sync(input);
+}
+
+/*
+ * Routine that handles all the logic needed to parse out the message from the remote.
+ */
+static void keyspan_check_data(struct usb_keyspan *remote)
+{
+ int i;
+ int found = 0;
+ struct keyspan_message message;
+
+ switch(remote->stage) {
+ case 0:
+ /*
+ * In stage 0 we want to find the start of a message. The remote sends a 0xFF as filler.
+ * So the first byte that isn't a FF should be the start of a new message.
+ */
+ for (i = 0; i < RECV_SIZE && remote->in_buffer[i] == GAP; ++i);
+
+ if (i < RECV_SIZE) {
+ memcpy(remote->data.buffer, remote->in_buffer, RECV_SIZE);
+ remote->data.len = RECV_SIZE;
+ remote->data.pos = 0;
+ remote->data.tester = 0;
+ remote->data.bits_left = 0;
+ remote->stage = 1;
+ }
+ break;
+
+ case 1:
+ /*
+ * Stage 1 we should have 16 bytes and should be able to detect a
+ * SYNC. The SYNC is 14 bits, 7 0's and then 7 1's.
+ */
+ memcpy(remote->data.buffer + remote->data.len, remote->in_buffer, RECV_SIZE);
+ remote->data.len += RECV_SIZE;
+
+ found = 0;
+ while ((remote->data.bits_left >= 14 || remote->data.pos < remote->data.len) && !found) {
+ for (i = 0; i < 8; ++i) {
+ if (keyspan_load_tester(remote, 14) != 0) {
+ remote->stage = 0;
+ return;
+ }
+
+ if ((remote->data.tester & SYNC_MASK) == SYNC) {
+ remote->data.tester = remote->data.tester >> 14;
+ remote->data.bits_left -= 14;
+ found = 1;
+ break;
+ } else {
+ remote->data.tester = remote->data.tester >> 1;
+ --remote->data.bits_left;
+ }
+ }
+ }
+
+ if (!found) {
+ remote->stage = 0;
+ remote->data.len = 0;
+ } else {
+ remote->stage = 2;
+ }
+ break;
+
+ case 2:
+ /*
+ * Stage 2 we should have 24 bytes which will be enough for a full
+ * message. We need to parse out the system code, button code,
+ * toggle code, and stop.
+ */
+ memcpy(remote->data.buffer + remote->data.len, remote->in_buffer, RECV_SIZE);
+ remote->data.len += RECV_SIZE;
+
+ message.system = 0;
+ for (i = 0; i < 9; i++) {
+ keyspan_load_tester(remote, 6);
+
+ if ((remote->data.tester & ZERO_MASK) == ZERO) {
+ message.system = message.system << 1;
+ remote->data.tester = remote->data.tester >> 5;
+ remote->data.bits_left -= 5;
+ } else if ((remote->data.tester & ONE_MASK) == ONE) {
+ message.system = (message.system << 1) + 1;
+ remote->data.tester = remote->data.tester >> 6;
+ remote->data.bits_left -= 6;
+ } else {
+ err("%s - Unknown sequence found in system data.\n", __func__);
+ remote->stage = 0;
+ return;
+ }
+ }
+
+ message.button = 0;
+ for (i = 0; i < 5; i++) {
+ keyspan_load_tester(remote, 6);
+
+ if ((remote->data.tester & ZERO_MASK) == ZERO) {
+ message.button = message.button << 1;
+ remote->data.tester = remote->data.tester >> 5;
+ remote->data.bits_left -= 5;
+ } else if ((remote->data.tester & ONE_MASK) == ONE) {
+ message.button = (message.button << 1) + 1;
+ remote->data.tester = remote->data.tester >> 6;
+ remote->data.bits_left -= 6;
+ } else {
+ err("%s - Unknown sequence found in button data.\n", __func__);
+ remote->stage = 0;
+ return;
+ }
+ }
+
+ keyspan_load_tester(remote, 6);
+ if ((remote->data.tester & ZERO_MASK) == ZERO) {
+ message.toggle = 0;
+ remote->data.tester = remote->data.tester >> 5;
+ remote->data.bits_left -= 5;
+ } else if ((remote->data.tester & ONE_MASK) == ONE) {
+ message.toggle = 1;
+ remote->data.tester = remote->data.tester >> 6;
+ remote->data.bits_left -= 6;
+ } else {
+ err("%s - Error in message, invalid toggle.\n", __func__);
+ remote->stage = 0;
+ return;
+ }
+
+ keyspan_load_tester(remote, 5);
+ if ((remote->data.tester & STOP_MASK) == STOP) {
+ remote->data.tester = remote->data.tester >> 5;
+ remote->data.bits_left -= 5;
+ } else {
+ err("Bad message received, no stop bit found.\n");
+ }
+
+ dev_dbg(&remote->udev->dev,
+ "%s found valid message: system: %d, button: %d, toggle: %d\n",
+ __func__, message.system, message.button, message.toggle);
+
+ if (message.toggle != remote->toggle) {
+ keyspan_report_button(remote, message.button, 1);
+ keyspan_report_button(remote, message.button, 0);
+ remote->toggle = message.toggle;
+ }
+
+ remote->stage = 0;
+ break;
+ }
+}
+
+/*
+ * Routine for sending all the initialization messages to the remote.
+ */
+static int keyspan_setup(struct usb_device* dev)
+{
+ int retval = 0;
+
+ retval = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
+ 0x11, 0x40, 0x5601, 0x0, NULL, 0, 0);
+ if (retval) {
+ dev_dbg(&dev->dev, "%s - failed to set bit rate due to error: %d\n",
+ __func__, retval);
+ return(retval);
+ }
+
+ retval = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
+ 0x44, 0x40, 0x0, 0x0, NULL, 0, 0);
+ if (retval) {
+ dev_dbg(&dev->dev, "%s - failed to set resume sensitivity due to error: %d\n",
+ __func__, retval);
+ return(retval);
+ }
+
+ retval = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
+ 0x22, 0x40, 0x0, 0x0, NULL, 0, 0);
+ if (retval) {
+ dev_dbg(&dev->dev, "%s - failed to turn receive on due to error: %d\n",
+ __func__, retval);
+ return(retval);
+ }
+
+ dev_dbg(&dev->dev, "%s - Setup complete.\n", __func__);
+ return(retval);
+}
+
+/*
+ * Routine used to handle a new message that has come in.
+ */
+static void keyspan_irq_recv(struct urb *urb)
+{
+ struct usb_keyspan *dev = urb->context;
+ int retval;
+
+ /* Check our status in case we need to bail out early. */
+ switch (urb->status) {
+ case 0:
+ break;
+
+ /* Device went away so don't keep trying to read from it. */
+ case -ECONNRESET:
+ case -ENOENT:
+ case -ESHUTDOWN:
+ return;
+
+ default:
+ goto resubmit;
+ break;
+ }
+
+ if (debug)
+ keyspan_print(dev);
+
+ keyspan_check_data(dev);
+
+resubmit:
+ retval = usb_submit_urb(urb, GFP_ATOMIC);
+ if (retval)
+ err ("%s - usb_submit_urb failed with result: %d", __func__, retval);
+}
+
+static int keyspan_open(struct input_dev *dev)
+{
+ struct usb_keyspan *remote = input_get_drvdata(dev);
+
+ remote->irq_urb->dev = remote->udev;
+ if (usb_submit_urb(remote->irq_urb, GFP_KERNEL))
+ return -EIO;
+
+ return 0;
+}
+
+static void keyspan_close(struct input_dev *dev)
+{
+ struct usb_keyspan *remote = input_get_drvdata(dev);
+
+ usb_kill_urb(remote->irq_urb);
+}
+
+static struct usb_endpoint_descriptor *keyspan_get_in_endpoint(struct usb_host_interface *iface)
+{
+
+ struct usb_endpoint_descriptor *endpoint;
+ int i;
+
+ for (i = 0; i < iface->desc.bNumEndpoints; ++i) {
+ endpoint = &iface->endpoint[i].desc;
+
+ if (usb_endpoint_is_int_in(endpoint)) {
+ /* we found our interrupt in endpoint */
+ return endpoint;
+ }
+ }
+
+ return NULL;
+}
+
+/*
+ * Routine that sets up the driver to handle a specific USB device detected on the bus.
+ */
+static int keyspan_probe(struct usb_interface *interface, const struct usb_device_id *id)
+{
+ struct usb_device *udev = interface_to_usbdev(interface);
+ struct usb_endpoint_descriptor *endpoint;
+ struct usb_keyspan *remote;
+ struct input_dev *input_dev;
+ int i, error;
+
+ endpoint = keyspan_get_in_endpoint(interface->cur_altsetting);
+ if (!endpoint)
+ return -ENODEV;
+
+ remote = kzalloc(sizeof(*remote), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!remote || !input_dev) {
+ error = -ENOMEM;
+ goto fail1;
+ }
+
+ remote->udev = udev;
+ remote->input = input_dev;
+ remote->interface = interface;
+ remote->in_endpoint = endpoint;
+ remote->toggle = -1; /* Set to -1 so we will always not match the toggle from the first remote message. */
+
+ remote->in_buffer = usb_alloc_coherent(udev, RECV_SIZE, GFP_ATOMIC, &remote->in_dma);
+ if (!remote->in_buffer) {
+ error = -ENOMEM;
+ goto fail1;
+ }
+
+ remote->irq_urb = usb_alloc_urb(0, GFP_KERNEL);
+ if (!remote->irq_urb) {
+ error = -ENOMEM;
+ goto fail2;
+ }
+
+ error = keyspan_setup(udev);
+ if (error) {
+ error = -ENODEV;
+ goto fail3;
+ }
+
+ if (udev->manufacturer)
+ strlcpy(remote->name, udev->manufacturer, sizeof(remote->name));
+
+ if (udev->product) {
+ if (udev->manufacturer)
+ strlcat(remote->name, " ", sizeof(remote->name));
+ strlcat(remote->name, udev->product, sizeof(remote->name));
+ }
+
+ if (!strlen(remote->name))
+ snprintf(remote->name, sizeof(remote->name),
+ "USB Keyspan Remote %04x:%04x",
+ le16_to_cpu(udev->descriptor.idVendor),
+ le16_to_cpu(udev->descriptor.idProduct));
+
+ usb_make_path(udev, remote->phys, sizeof(remote->phys));
+ strlcat(remote->phys, "/input0", sizeof(remote->phys));
+ memcpy(remote->keymap, keyspan_key_table, sizeof(remote->keymap));
+
+ input_dev->name = remote->name;
+ input_dev->phys = remote->phys;
+ usb_to_input_id(udev, &input_dev->id);
+ input_dev->dev.parent = &interface->dev;
+ input_dev->keycode = remote->keymap;
+ input_dev->keycodesize = sizeof(unsigned short);
+ input_dev->keycodemax = ARRAY_SIZE(remote->keymap);
+
+ input_set_capability(input_dev, EV_MSC, MSC_SCAN);
+ __set_bit(EV_KEY, input_dev->evbit);
+ for (i = 0; i < ARRAY_SIZE(keyspan_key_table); i++)
+ __set_bit(keyspan_key_table[i], input_dev->keybit);
+ __clear_bit(KEY_RESERVED, input_dev->keybit);
+
+ input_set_drvdata(input_dev, remote);
+
+ input_dev->open = keyspan_open;
+ input_dev->close = keyspan_close;
+
+ /*
+ * Initialize the URB to access the device.
+ * The urb gets sent to the device in keyspan_open()
+ */
+ usb_fill_int_urb(remote->irq_urb,
+ remote->udev,
+ usb_rcvintpipe(remote->udev, endpoint->bEndpointAddress),
+ remote->in_buffer, RECV_SIZE, keyspan_irq_recv, remote,
+ endpoint->bInterval);
+ remote->irq_urb->transfer_dma = remote->in_dma;
+ remote->irq_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
+
+ /* we can register the device now, as it is ready */
+ error = input_register_device(remote->input);
+ if (error)
+ goto fail3;
+
+ /* save our data pointer in this interface device */
+ usb_set_intfdata(interface, remote);
+
+ return 0;
+
+ fail3: usb_free_urb(remote->irq_urb);
+ fail2: usb_free_coherent(udev, RECV_SIZE, remote->in_buffer, remote->in_dma);
+ fail1: kfree(remote);
+ input_free_device(input_dev);
+
+ return error;
+}
+
+/*
+ * Routine called when a device is disconnected from the USB.
+ */
+static void keyspan_disconnect(struct usb_interface *interface)
+{
+ struct usb_keyspan *remote;
+
+ remote = usb_get_intfdata(interface);
+ usb_set_intfdata(interface, NULL);
+
+ if (remote) { /* We have a valid driver structure so clean up everything we allocated. */
+ input_unregister_device(remote->input);
+ usb_kill_urb(remote->irq_urb);
+ usb_free_urb(remote->irq_urb);
+ usb_free_coherent(remote->udev, RECV_SIZE, remote->in_buffer, remote->in_dma);
+ kfree(remote);
+ }
+}
+
+/*
+ * Standard driver set up sections
+ */
+static struct usb_driver keyspan_driver =
+{
+ .name = "keyspan_remote",
+ .probe = keyspan_probe,
+ .disconnect = keyspan_disconnect,
+ .id_table = keyspan_table
+};
+
+static int __init usb_keyspan_init(void)
+{
+ int result;
+
+ /* register this driver with the USB subsystem */
+ result = usb_register(&keyspan_driver);
+ if (result)
+ err("usb_register failed. Error number %d\n", result);
+
+ return result;
+}
+
+static void __exit usb_keyspan_exit(void)
+{
+ /* deregister this driver with the USB subsystem */
+ usb_deregister(&keyspan_driver);
+}
+
+module_init(usb_keyspan_init);
+module_exit(usb_keyspan_exit);
+
+MODULE_DEVICE_TABLE(usb, keyspan_table);
+MODULE_AUTHOR(DRIVER_AUTHOR);
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE(DRIVER_LICENSE);
diff --git a/drivers/input/misc/kxtj9.c b/drivers/input/misc/kxtj9.c
new file mode 100644
index 0000000..783597a
--- /dev/null
+++ b/drivers/input/misc/kxtj9.c
@@ -0,0 +1,672 @@
+/*
+ * Copyright (C) 2011 Kionix, Inc.
+ * Written by Chris Hudson <chudson@kionix.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ * 02111-1307, USA
+ */
+
+#include <linux/delay.h>
+#include <linux/i2c.h>
+#include <linux/input.h>
+#include <linux/interrupt.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/input/kxtj9.h>
+#include <linux/input-polldev.h>
+
+#define NAME "kxtj9"
+#define G_MAX 8000
+/* OUTPUT REGISTERS */
+#define XOUT_L 0x06
+#define WHO_AM_I 0x0F
+/* CONTROL REGISTERS */
+#define INT_REL 0x1A
+#define CTRL_REG1 0x1B
+#define INT_CTRL1 0x1E
+#define DATA_CTRL 0x21
+/* CONTROL REGISTER 1 BITS */
+#define PC1_OFF 0x7F
+#define PC1_ON (1 << 7)
+/* Data ready funtion enable bit: set during probe if using irq mode */
+#define DRDYE (1 << 5)
+/* INTERRUPT CONTROL REGISTER 1 BITS */
+/* Set these during probe if using irq mode */
+#define KXTJ9_IEL (1 << 3)
+#define KXTJ9_IEA (1 << 4)
+#define KXTJ9_IEN (1 << 5)
+/* INPUT_ABS CONSTANTS */
+#define FUZZ 3
+#define FLAT 3
+/* RESUME STATE INDICES */
+#define RES_DATA_CTRL 0
+#define RES_CTRL_REG1 1
+#define RES_INT_CTRL1 2
+#define RESUME_ENTRIES 3
+
+/*
+ * The following table lists the maximum appropriate poll interval for each
+ * available output data rate.
+ */
+static const struct {
+ unsigned int cutoff;
+ u8 mask;
+} kxtj9_odr_table[] = {
+ { 3, ODR800F },
+ { 5, ODR400F },
+ { 10, ODR200F },
+ { 20, ODR100F },
+ { 40, ODR50F },
+ { 80, ODR25F },
+ { 0, ODR12_5F},
+};
+
+struct kxtj9_data {
+ struct i2c_client *client;
+ struct kxtj9_platform_data pdata;
+ struct input_dev *input_dev;
+#ifdef CONFIG_INPUT_KXTJ9_POLLED_MODE
+ struct input_polled_dev *poll_dev;
+#endif
+ unsigned int last_poll_interval;
+ u8 shift;
+ u8 ctrl_reg1;
+ u8 data_ctrl;
+ u8 int_ctrl;
+};
+
+static int kxtj9_i2c_read(struct kxtj9_data *tj9, u8 addr, u8 *data, int len)
+{
+ struct i2c_msg msgs[] = {
+ {
+ .addr = tj9->client->addr,
+ .flags = tj9->client->flags,
+ .len = 1,
+ .buf = &addr,
+ },
+ {
+ .addr = tj9->client->addr,
+ .flags = tj9->client->flags | I2C_M_RD,
+ .len = len,
+ .buf = data,
+ },
+ };
+
+ return i2c_transfer(tj9->client->adapter, msgs, 2);
+}
+
+static void kxtj9_report_acceleration_data(struct kxtj9_data *tj9)
+{
+ s16 acc_data[3]; /* Data bytes from hardware xL, xH, yL, yH, zL, zH */
+ s16 x, y, z;
+ int err;
+
+ err = kxtj9_i2c_read(tj9, XOUT_L, (u8 *)acc_data, 6);
+ if (err < 0)
+ dev_err(&tj9->client->dev, "accelerometer data read failed\n");
+
+ x = le16_to_cpu(acc_data[tj9->pdata.axis_map_x]) >> tj9->shift;
+ y = le16_to_cpu(acc_data[tj9->pdata.axis_map_y]) >> tj9->shift;
+ z = le16_to_cpu(acc_data[tj9->pdata.axis_map_z]) >> tj9->shift;
+
+ input_report_abs(tj9->input_dev, ABS_X, tj9->pdata.negate_x ? -x : x);
+ input_report_abs(tj9->input_dev, ABS_Y, tj9->pdata.negate_y ? -y : y);
+ input_report_abs(tj9->input_dev, ABS_Z, tj9->pdata.negate_z ? -z : z);
+ input_sync(tj9->input_dev);
+}
+
+static irqreturn_t kxtj9_isr(int irq, void *dev)
+{
+ struct kxtj9_data *tj9 = dev;
+ int err;
+
+ /* data ready is the only possible interrupt type */
+ kxtj9_report_acceleration_data(tj9);
+
+ err = i2c_smbus_read_byte_data(tj9->client, INT_REL);
+ if (err < 0)
+ dev_err(&tj9->client->dev,
+ "error clearing interrupt status: %d\n", err);
+
+ return IRQ_HANDLED;
+}
+
+static int kxtj9_update_g_range(struct kxtj9_data *tj9, u8 new_g_range)
+{
+ switch (new_g_range) {
+ case KXTJ9_G_2G:
+ tj9->shift = 4;
+ break;
+ case KXTJ9_G_4G:
+ tj9->shift = 3;
+ break;
+ case KXTJ9_G_8G:
+ tj9->shift = 2;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ tj9->ctrl_reg1 &= 0xe7;
+ tj9->ctrl_reg1 |= new_g_range;
+
+ return 0;
+}
+
+static int kxtj9_update_odr(struct kxtj9_data *tj9, unsigned int poll_interval)
+{
+ int err;
+ int i;
+
+ /* Use the lowest ODR that can support the requested poll interval */
+ for (i = 0; i < ARRAY_SIZE(kxtj9_odr_table); i++) {
+ tj9->data_ctrl = kxtj9_odr_table[i].mask;
+ if (poll_interval < kxtj9_odr_table[i].cutoff)
+ break;
+ }
+
+ err = i2c_smbus_write_byte_data(tj9->client, CTRL_REG1, 0);
+ if (err < 0)
+ return err;
+
+ err = i2c_smbus_write_byte_data(tj9->client, DATA_CTRL, tj9->data_ctrl);
+ if (err < 0)
+ return err;
+
+ err = i2c_smbus_write_byte_data(tj9->client, CTRL_REG1, tj9->ctrl_reg1);
+ if (err < 0)
+ return err;
+
+ return 0;
+}
+
+static int kxtj9_device_power_on(struct kxtj9_data *tj9)
+{
+ if (tj9->pdata.power_on)
+ return tj9->pdata.power_on();
+
+ return 0;
+}
+
+static void kxtj9_device_power_off(struct kxtj9_data *tj9)
+{
+ int err;
+
+ tj9->ctrl_reg1 &= PC1_OFF;
+ err = i2c_smbus_write_byte_data(tj9->client, CTRL_REG1, tj9->ctrl_reg1);
+ if (err < 0)
+ dev_err(&tj9->client->dev, "soft power off failed\n");
+
+ if (tj9->pdata.power_off)
+ tj9->pdata.power_off();
+}
+
+static int kxtj9_enable(struct kxtj9_data *tj9)
+{
+ int err;
+
+ err = kxtj9_device_power_on(tj9);
+ if (err < 0)
+ return err;
+
+ /* ensure that PC1 is cleared before updating control registers */
+ err = i2c_smbus_write_byte_data(tj9->client, CTRL_REG1, 0);
+ if (err < 0)
+ return err;
+
+ /* only write INT_CTRL_REG1 if in irq mode */
+ if (tj9->client->irq) {
+ err = i2c_smbus_write_byte_data(tj9->client,
+ INT_CTRL1, tj9->int_ctrl);
+ if (err < 0)
+ return err;
+ }
+
+ err = kxtj9_update_g_range(tj9, tj9->pdata.g_range);
+ if (err < 0)
+ return err;
+
+ /* turn on outputs */
+ tj9->ctrl_reg1 |= PC1_ON;
+ err = i2c_smbus_write_byte_data(tj9->client, CTRL_REG1, tj9->ctrl_reg1);
+ if (err < 0)
+ return err;
+
+ err = kxtj9_update_odr(tj9, tj9->last_poll_interval);
+ if (err < 0)
+ return err;
+
+ /* clear initial interrupt if in irq mode */
+ if (tj9->client->irq) {
+ err = i2c_smbus_read_byte_data(tj9->client, INT_REL);
+ if (err < 0) {
+ dev_err(&tj9->client->dev,
+ "error clearing interrupt: %d\n", err);
+ goto fail;
+ }
+ }
+
+ return 0;
+
+fail:
+ kxtj9_device_power_off(tj9);
+ return err;
+}
+
+static void kxtj9_disable(struct kxtj9_data *tj9)
+{
+ kxtj9_device_power_off(tj9);
+}
+
+static int kxtj9_input_open(struct input_dev *input)
+{
+ struct kxtj9_data *tj9 = input_get_drvdata(input);
+
+ return kxtj9_enable(tj9);
+}
+
+static void kxtj9_input_close(struct input_dev *dev)
+{
+ struct kxtj9_data *tj9 = input_get_drvdata(dev);
+
+ kxtj9_disable(tj9);
+}
+
+static void __devinit kxtj9_init_input_device(struct kxtj9_data *tj9,
+ struct input_dev *input_dev)
+{
+ __set_bit(EV_ABS, input_dev->evbit);
+ input_set_abs_params(input_dev, ABS_X, -G_MAX, G_MAX, FUZZ, FLAT);
+ input_set_abs_params(input_dev, ABS_Y, -G_MAX, G_MAX, FUZZ, FLAT);
+ input_set_abs_params(input_dev, ABS_Z, -G_MAX, G_MAX, FUZZ, FLAT);
+
+ input_dev->name = "kxtj9_accel";
+ input_dev->id.bustype = BUS_I2C;
+ input_dev->dev.parent = &tj9->client->dev;
+}
+
+static int __devinit kxtj9_setup_input_device(struct kxtj9_data *tj9)
+{
+ struct input_dev *input_dev;
+ int err;
+
+ input_dev = input_allocate_device();
+ if (!input_dev) {
+ dev_err(&tj9->client->dev, "input device allocate failed\n");
+ return -ENOMEM;
+ }
+
+ tj9->input_dev = input_dev;
+
+ input_dev->open = kxtj9_input_open;
+ input_dev->close = kxtj9_input_close;
+ input_set_drvdata(input_dev, tj9);
+
+ kxtj9_init_input_device(tj9, input_dev);
+
+ err = input_register_device(tj9->input_dev);
+ if (err) {
+ dev_err(&tj9->client->dev,
+ "unable to register input polled device %s: %d\n",
+ tj9->input_dev->name, err);
+ input_free_device(tj9->input_dev);
+ return err;
+ }
+
+ return 0;
+}
+
+/*
+ * When IRQ mode is selected, we need to provide an interface to allow the user
+ * to change the output data rate of the part. For consistency, we are using
+ * the set_poll method, which accepts a poll interval in milliseconds, and then
+ * calls update_odr() while passing this value as an argument. In IRQ mode, the
+ * data outputs will not be read AT the requested poll interval, rather, the
+ * lowest ODR that can support the requested interval. The client application
+ * will be responsible for retrieving data from the input node at the desired
+ * interval.
+ */
+
+/* Returns currently selected poll interval (in ms) */
+static ssize_t kxtj9_get_poll(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct kxtj9_data *tj9 = i2c_get_clientdata(client);
+
+ return sprintf(buf, "%d\n", tj9->last_poll_interval);
+}
+
+/* Allow users to select a new poll interval (in ms) */
+static ssize_t kxtj9_set_poll(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct kxtj9_data *tj9 = i2c_get_clientdata(client);
+ struct input_dev *input_dev = tj9->input_dev;
+ unsigned int interval;
+ int error;
+
+ error = kstrtouint(buf, 10, &interval);
+ if (error < 0)
+ return error;
+
+ /* Lock the device to prevent races with open/close (and itself) */
+ mutex_lock(&input_dev->mutex);
+
+ disable_irq(client->irq);
+
+ /*
+ * Set current interval to the greater of the minimum interval or
+ * the requested interval
+ */
+ tj9->last_poll_interval = max(interval, tj9->pdata.min_interval);
+
+ kxtj9_update_odr(tj9, tj9->last_poll_interval);
+
+ enable_irq(client->irq);
+ mutex_unlock(&input_dev->mutex);
+
+ return count;
+}
+
+static DEVICE_ATTR(poll, S_IRUGO|S_IWUSR, kxtj9_get_poll, kxtj9_set_poll);
+
+static struct attribute *kxtj9_attributes[] = {
+ &dev_attr_poll.attr,
+ NULL
+};
+
+static struct attribute_group kxtj9_attribute_group = {
+ .attrs = kxtj9_attributes
+};
+
+
+#ifdef CONFIG_INPUT_KXTJ9_POLLED_MODE
+static void kxtj9_poll(struct input_polled_dev *dev)
+{
+ struct kxtj9_data *tj9 = dev->private;
+ unsigned int poll_interval = dev->poll_interval;
+
+ kxtj9_report_acceleration_data(tj9);
+
+ if (poll_interval != tj9->last_poll_interval) {
+ kxtj9_update_odr(tj9, poll_interval);
+ tj9->last_poll_interval = poll_interval;
+ }
+}
+
+static void kxtj9_polled_input_open(struct input_polled_dev *dev)
+{
+ struct kxtj9_data *tj9 = dev->private;
+
+ kxtj9_enable(tj9);
+}
+
+static void kxtj9_polled_input_close(struct input_polled_dev *dev)
+{
+ struct kxtj9_data *tj9 = dev->private;
+
+ kxtj9_disable(tj9);
+}
+
+static int __devinit kxtj9_setup_polled_device(struct kxtj9_data *tj9)
+{
+ int err;
+ struct input_polled_dev *poll_dev;
+ poll_dev = input_allocate_polled_device();
+
+ if (!poll_dev) {
+ dev_err(&tj9->client->dev,
+ "Failed to allocate polled device\n");
+ return -ENOMEM;
+ }
+
+ tj9->poll_dev = poll_dev;
+ tj9->input_dev = poll_dev->input;
+
+ poll_dev->private = tj9;
+ poll_dev->poll = kxtj9_poll;
+ poll_dev->open = kxtj9_polled_input_open;
+ poll_dev->close = kxtj9_polled_input_close;
+
+ kxtj9_init_input_device(tj9, poll_dev->input);
+
+ err = input_register_polled_device(poll_dev);
+ if (err) {
+ dev_err(&tj9->client->dev,
+ "Unable to register polled device, err=%d\n", err);
+ input_free_polled_device(poll_dev);
+ return err;
+ }
+
+ return 0;
+}
+
+static void __devexit kxtj9_teardown_polled_device(struct kxtj9_data *tj9)
+{
+ input_unregister_polled_device(tj9->poll_dev);
+ input_free_polled_device(tj9->poll_dev);
+}
+
+#else
+
+static inline int kxtj9_setup_polled_device(struct kxtj9_data *tj9)
+{
+ return -ENOSYS;
+}
+
+static inline void kxtj9_teardown_polled_device(struct kxtj9_data *tj9)
+{
+}
+
+#endif
+
+static int __devinit kxtj9_verify(struct kxtj9_data *tj9)
+{
+ int retval;
+
+ retval = kxtj9_device_power_on(tj9);
+ if (retval < 0)
+ return retval;
+
+ retval = i2c_smbus_read_byte_data(tj9->client, WHO_AM_I);
+ if (retval < 0) {
+ dev_err(&tj9->client->dev, "read err int source\n");
+ goto out;
+ }
+
+ retval = retval != 0x06 ? -EIO : 0;
+
+out:
+ kxtj9_device_power_off(tj9);
+ return retval;
+}
+
+static int __devinit kxtj9_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ const struct kxtj9_platform_data *pdata = client->dev.platform_data;
+ struct kxtj9_data *tj9;
+ int err;
+
+ if (!i2c_check_functionality(client->adapter,
+ I2C_FUNC_I2C | I2C_FUNC_SMBUS_BYTE_DATA)) {
+ dev_err(&client->dev, "client is not i2c capable\n");
+ return -ENXIO;
+ }
+
+ if (!pdata) {
+ dev_err(&client->dev, "platform data is NULL; exiting\n");
+ return -EINVAL;
+ }
+
+ tj9 = kzalloc(sizeof(*tj9), GFP_KERNEL);
+ if (!tj9) {
+ dev_err(&client->dev,
+ "failed to allocate memory for module data\n");
+ return -ENOMEM;
+ }
+
+ tj9->client = client;
+ tj9->pdata = *pdata;
+
+ if (pdata->init) {
+ err = pdata->init();
+ if (err < 0)
+ goto err_free_mem;
+ }
+
+ err = kxtj9_verify(tj9);
+ if (err < 0) {
+ dev_err(&client->dev, "device not recognized\n");
+ goto err_pdata_exit;
+ }
+
+ i2c_set_clientdata(client, tj9);
+
+ tj9->ctrl_reg1 = tj9->pdata.res_12bit | tj9->pdata.g_range;
+ tj9->data_ctrl = tj9->pdata.data_odr_init;
+
+ if (client->irq) {
+ /* If in irq mode, populate INT_CTRL_REG1 and enable DRDY. */
+ tj9->int_ctrl |= KXTJ9_IEN | KXTJ9_IEA | KXTJ9_IEL;
+ tj9->ctrl_reg1 |= DRDYE;
+
+ err = kxtj9_setup_input_device(tj9);
+ if (err)
+ goto err_pdata_exit;
+
+ err = request_threaded_irq(client->irq, NULL, kxtj9_isr,
+ IRQF_TRIGGER_RISING | IRQF_ONESHOT,
+ "kxtj9-irq", tj9);
+ if (err) {
+ dev_err(&client->dev, "request irq failed: %d\n", err);
+ goto err_destroy_input;
+ }
+
+ err = sysfs_create_group(&client->dev.kobj, &kxtj9_attribute_group);
+ if (err) {
+ dev_err(&client->dev, "sysfs create failed: %d\n", err);
+ goto err_free_irq;
+ }
+
+ } else {
+ err = kxtj9_setup_polled_device(tj9);
+ if (err)
+ goto err_pdata_exit;
+ }
+
+ return 0;
+
+err_free_irq:
+ free_irq(client->irq, tj9);
+err_destroy_input:
+ input_unregister_device(tj9->input_dev);
+err_pdata_exit:
+ if (tj9->pdata.exit)
+ tj9->pdata.exit();
+err_free_mem:
+ kfree(tj9);
+ return err;
+}
+
+static int __devexit kxtj9_remove(struct i2c_client *client)
+{
+ struct kxtj9_data *tj9 = i2c_get_clientdata(client);
+
+ if (client->irq) {
+ sysfs_remove_group(&client->dev.kobj, &kxtj9_attribute_group);
+ free_irq(client->irq, tj9);
+ input_unregister_device(tj9->input_dev);
+ } else {
+ kxtj9_teardown_polled_device(tj9);
+ }
+
+ if (tj9->pdata.exit)
+ tj9->pdata.exit();
+
+ kfree(tj9);
+
+ return 0;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int kxtj9_suspend(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct kxtj9_data *tj9 = i2c_get_clientdata(client);
+ struct input_dev *input_dev = tj9->input_dev;
+
+ mutex_lock(&input_dev->mutex);
+
+ if (input_dev->users)
+ kxtj9_disable(tj9);
+
+ mutex_unlock(&input_dev->mutex);
+ return 0;
+}
+
+static int kxtj9_resume(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct kxtj9_data *tj9 = i2c_get_clientdata(client);
+ struct input_dev *input_dev = tj9->input_dev;
+ int retval = 0;
+
+ mutex_lock(&input_dev->mutex);
+
+ if (input_dev->users)
+ kxtj9_enable(tj9);
+
+ mutex_unlock(&input_dev->mutex);
+ return retval;
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(kxtj9_pm_ops, kxtj9_suspend, kxtj9_resume);
+
+static const struct i2c_device_id kxtj9_id[] = {
+ { NAME, 0 },
+ { },
+};
+
+MODULE_DEVICE_TABLE(i2c, kxtj9_id);
+
+static struct i2c_driver kxtj9_driver = {
+ .driver = {
+ .name = NAME,
+ .owner = THIS_MODULE,
+ .pm = &kxtj9_pm_ops,
+ },
+ .probe = kxtj9_probe,
+ .remove = __devexit_p(kxtj9_remove),
+ .id_table = kxtj9_id,
+};
+
+static int __init kxtj9_init(void)
+{
+ return i2c_add_driver(&kxtj9_driver);
+}
+module_init(kxtj9_init);
+
+static void __exit kxtj9_exit(void)
+{
+ i2c_del_driver(&kxtj9_driver);
+}
+module_exit(kxtj9_exit);
+
+MODULE_DESCRIPTION("KXTJ9 accelerometer driver");
+MODULE_AUTHOR("Chris Hudson <chudson@kionix.com>");
+MODULE_LICENSE("GPL");
diff --git a/drivers/input/misc/m68kspkr.c b/drivers/input/misc/m68kspkr.c
new file mode 100644
index 0000000..0c64d9b
--- /dev/null
+++ b/drivers/input/misc/m68kspkr.c
@@ -0,0 +1,151 @@
+/*
+ * m68k beeper driver for Linux
+ *
+ * Copyright (c) 2002 Richard Zidlicky
+ * Copyright (c) 2002 Vojtech Pavlik
+ * Copyright (c) 1992 Orest Zborowski
+ *
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/input.h>
+#include <linux/platform_device.h>
+#include <asm/machdep.h>
+#include <asm/io.h>
+
+MODULE_AUTHOR("Richard Zidlicky <rz@linux-m68k.org>");
+MODULE_DESCRIPTION("m68k beeper driver");
+MODULE_LICENSE("GPL");
+
+static struct platform_device *m68kspkr_platform_device;
+
+static int m68kspkr_event(struct input_dev *dev, unsigned int type, unsigned int code, int value)
+{
+ unsigned int count = 0;
+
+ if (type != EV_SND)
+ return -1;
+
+ switch (code) {
+ case SND_BELL: if (value) value = 1000;
+ case SND_TONE: break;
+ default: return -1;
+ }
+
+ if (value > 20 && value < 32767)
+ count = 1193182 / value;
+
+ mach_beep(count, -1);
+
+ return 0;
+}
+
+static int __devinit m68kspkr_probe(struct platform_device *dev)
+{
+ struct input_dev *input_dev;
+ int err;
+
+ input_dev = input_allocate_device();
+ if (!input_dev)
+ return -ENOMEM;
+
+ input_dev->name = "m68k beeper";
+ input_dev->phys = "m68k/generic";
+ input_dev->id.bustype = BUS_HOST;
+ input_dev->id.vendor = 0x001f;
+ input_dev->id.product = 0x0001;
+ input_dev->id.version = 0x0100;
+ input_dev->dev.parent = &dev->dev;
+
+ input_dev->evbit[0] = BIT_MASK(EV_SND);
+ input_dev->sndbit[0] = BIT_MASK(SND_BELL) | BIT_MASK(SND_TONE);
+ input_dev->event = m68kspkr_event;
+
+ err = input_register_device(input_dev);
+ if (err) {
+ input_free_device(input_dev);
+ return err;
+ }
+
+ platform_set_drvdata(dev, input_dev);
+
+ return 0;
+}
+
+static int __devexit m68kspkr_remove(struct platform_device *dev)
+{
+ struct input_dev *input_dev = platform_get_drvdata(dev);
+
+ input_unregister_device(input_dev);
+ platform_set_drvdata(dev, NULL);
+ /* turn off the speaker */
+ m68kspkr_event(NULL, EV_SND, SND_BELL, 0);
+
+ return 0;
+}
+
+static void m68kspkr_shutdown(struct platform_device *dev)
+{
+ /* turn off the speaker */
+ m68kspkr_event(NULL, EV_SND, SND_BELL, 0);
+}
+
+static struct platform_driver m68kspkr_platform_driver = {
+ .driver = {
+ .name = "m68kspkr",
+ .owner = THIS_MODULE,
+ },
+ .probe = m68kspkr_probe,
+ .remove = __devexit_p(m68kspkr_remove),
+ .shutdown = m68kspkr_shutdown,
+};
+
+static int __init m68kspkr_init(void)
+{
+ int err;
+
+ if (!mach_beep) {
+ printk(KERN_INFO "m68kspkr: no lowlevel beep support\n");
+ return -ENODEV;
+ }
+
+ err = platform_driver_register(&m68kspkr_platform_driver);
+ if (err)
+ return err;
+
+ m68kspkr_platform_device = platform_device_alloc("m68kspkr", -1);
+ if (!m68kspkr_platform_device) {
+ err = -ENOMEM;
+ goto err_unregister_driver;
+ }
+
+ err = platform_device_add(m68kspkr_platform_device);
+ if (err)
+ goto err_free_device;
+
+ return 0;
+
+ err_free_device:
+ platform_device_put(m68kspkr_platform_device);
+ err_unregister_driver:
+ platform_driver_unregister(&m68kspkr_platform_driver);
+
+ return err;
+}
+
+static void __exit m68kspkr_exit(void)
+{
+ platform_device_unregister(m68kspkr_platform_device);
+ platform_driver_unregister(&m68kspkr_platform_driver);
+}
+
+module_init(m68kspkr_init);
+module_exit(m68kspkr_exit);
diff --git a/drivers/input/misc/max8925_onkey.c b/drivers/input/misc/max8925_onkey.c
new file mode 100644
index 0000000..7de0ded
--- /dev/null
+++ b/drivers/input/misc/max8925_onkey.c
@@ -0,0 +1,184 @@
+/**
+ * max8925_onkey.c - MAX8925 ONKEY driver
+ *
+ * Copyright (C) 2009 Marvell International Ltd.
+ * Haojian Zhuang <haojian.zhuang@marvell.com>
+ *
+ * This file is subject to the terms and conditions of the GNU General
+ * Public License. See the file "COPYING" in the main directory of this
+ * archive for more details.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/i2c.h>
+#include <linux/input.h>
+#include <linux/interrupt.h>
+#include <linux/mfd/max8925.h>
+#include <linux/slab.h>
+
+#define SW_INPUT (1 << 7) /* 0/1 -- up/down */
+#define HARDRESET_EN (1 << 7)
+#define PWREN_EN (1 << 7)
+
+struct max8925_onkey_info {
+ struct input_dev *idev;
+ struct i2c_client *i2c;
+ struct device *dev;
+ int irq[2];
+};
+
+/*
+ * MAX8925 gives us an interrupt when ONKEY is pressed or released.
+ * max8925_set_bits() operates I2C bus and may sleep. So implement
+ * it in thread IRQ handler.
+ */
+static irqreturn_t max8925_onkey_handler(int irq, void *data)
+{
+ struct max8925_onkey_info *info = data;
+ int ret, event;
+
+ ret = max8925_reg_read(info->i2c, MAX8925_ON_OFF_STATUS);
+ if (ret & SW_INPUT)
+ event = 1;
+ else
+ event = 0;
+ input_report_key(info->idev, KEY_POWER, event);
+ input_sync(info->idev);
+
+ dev_dbg(info->dev, "onkey event:%d\n", event);
+
+ /* Enable hardreset to halt if system isn't shutdown on time */
+ max8925_set_bits(info->i2c, MAX8925_SYSENSEL,
+ HARDRESET_EN, HARDRESET_EN);
+
+ return IRQ_HANDLED;
+}
+
+static int __devinit max8925_onkey_probe(struct platform_device *pdev)
+{
+ struct max8925_chip *chip = dev_get_drvdata(pdev->dev.parent);
+ struct max8925_onkey_info *info;
+ int irq[2], error;
+
+ irq[0] = platform_get_irq(pdev, 0);
+ if (irq[0] < 0) {
+ dev_err(&pdev->dev, "No IRQ resource!\n");
+ return -EINVAL;
+ }
+ irq[1] = platform_get_irq(pdev, 1);
+ if (irq[1] < 0) {
+ dev_err(&pdev->dev, "No IRQ resource!\n");
+ return -EINVAL;
+ }
+
+ info = kzalloc(sizeof(struct max8925_onkey_info), GFP_KERNEL);
+ if (!info)
+ return -ENOMEM;
+
+ info->i2c = chip->i2c;
+ info->dev = &pdev->dev;
+ irq[0] += chip->irq_base;
+ irq[1] += chip->irq_base;
+
+ error = request_threaded_irq(irq[0], NULL, max8925_onkey_handler,
+ IRQF_ONESHOT, "onkey-down", info);
+ if (error < 0) {
+ dev_err(chip->dev, "Failed to request IRQ: #%d: %d\n",
+ irq[0], error);
+ goto out;
+ }
+ error = request_threaded_irq(irq[1], NULL, max8925_onkey_handler,
+ IRQF_ONESHOT, "onkey-up", info);
+ if (error < 0) {
+ dev_err(chip->dev, "Failed to request IRQ: #%d: %d\n",
+ irq[1], error);
+ goto out_irq;
+ }
+
+ info->idev = input_allocate_device();
+ if (!info->idev) {
+ dev_err(chip->dev, "Failed to allocate input dev\n");
+ error = -ENOMEM;
+ goto out_input;
+ }
+
+ info->idev->name = "max8925_on";
+ info->idev->phys = "max8925_on/input0";
+ info->idev->id.bustype = BUS_I2C;
+ info->idev->dev.parent = &pdev->dev;
+ info->irq[0] = irq[0];
+ info->irq[1] = irq[1];
+ info->idev->evbit[0] = BIT_MASK(EV_KEY);
+ info->idev->keybit[BIT_WORD(KEY_POWER)] = BIT_MASK(KEY_POWER);
+
+
+ error = input_register_device(info->idev);
+ if (error) {
+ dev_err(chip->dev, "Can't register input device: %d\n", error);
+ goto out_reg;
+ }
+
+ platform_set_drvdata(pdev, info);
+
+ return 0;
+
+out_reg:
+ input_free_device(info->idev);
+out_input:
+ free_irq(info->irq[1], info);
+out_irq:
+ free_irq(info->irq[0], info);
+out:
+ kfree(info);
+ return error;
+}
+
+static int __devexit max8925_onkey_remove(struct platform_device *pdev)
+{
+ struct max8925_onkey_info *info = platform_get_drvdata(pdev);
+
+ free_irq(info->irq[0], info);
+ free_irq(info->irq[1], info);
+ input_unregister_device(info->idev);
+ kfree(info);
+
+ platform_set_drvdata(pdev, NULL);
+
+ return 0;
+}
+
+static struct platform_driver max8925_onkey_driver = {
+ .driver = {
+ .name = "max8925-onkey",
+ .owner = THIS_MODULE,
+ },
+ .probe = max8925_onkey_probe,
+ .remove = __devexit_p(max8925_onkey_remove),
+};
+
+static int __init max8925_onkey_init(void)
+{
+ return platform_driver_register(&max8925_onkey_driver);
+}
+module_init(max8925_onkey_init);
+
+static void __exit max8925_onkey_exit(void)
+{
+ platform_driver_unregister(&max8925_onkey_driver);
+}
+module_exit(max8925_onkey_exit);
+
+MODULE_DESCRIPTION("Maxim MAX8925 ONKEY driver");
+MODULE_AUTHOR("Haojian Zhuang <haojian.zhuang@marvell.com>");
+MODULE_LICENSE("GPL");
diff --git a/drivers/input/misc/mc13783-pwrbutton.c b/drivers/input/misc/mc13783-pwrbutton.c
new file mode 100644
index 0000000..09b0522
--- /dev/null
+++ b/drivers/input/misc/mc13783-pwrbutton.c
@@ -0,0 +1,282 @@
+/**
+ * Copyright (C) 2011 Philippe Rétornaz
+ *
+ * Based on twl4030-pwrbutton driver by:
+ * Peter De Schrijver <peter.de-schrijver@nokia.com>
+ * Felipe Balbi <felipe.balbi@nokia.com>
+ *
+ * This file is subject to the terms and conditions of the GNU General
+ * Public License. See the file "COPYING" in the main directory of this
+ * archive for more details.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335 USA
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/input.h>
+#include <linux/interrupt.h>
+#include <linux/platform_device.h>
+#include <linux/mfd/mc13783.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
+
+struct mc13783_pwrb {
+ struct input_dev *pwr;
+ struct mc13xxx *mc13783;
+#define MC13783_PWRB_B1_POL_INVERT (1 << 0)
+#define MC13783_PWRB_B2_POL_INVERT (1 << 1)
+#define MC13783_PWRB_B3_POL_INVERT (1 << 2)
+ int flags;
+ unsigned short keymap[3];
+};
+
+#define MC13783_REG_INTERRUPT_SENSE_1 5
+#define MC13783_IRQSENSE1_ONOFD1S (1 << 3)
+#define MC13783_IRQSENSE1_ONOFD2S (1 << 4)
+#define MC13783_IRQSENSE1_ONOFD3S (1 << 5)
+
+#define MC13783_REG_POWER_CONTROL_2 15
+#define MC13783_POWER_CONTROL_2_ON1BDBNC 4
+#define MC13783_POWER_CONTROL_2_ON2BDBNC 6
+#define MC13783_POWER_CONTROL_2_ON3BDBNC 8
+#define MC13783_POWER_CONTROL_2_ON1BRSTEN (1 << 1)
+#define MC13783_POWER_CONTROL_2_ON2BRSTEN (1 << 2)
+#define MC13783_POWER_CONTROL_2_ON3BRSTEN (1 << 3)
+
+static irqreturn_t button_irq(int irq, void *_priv)
+{
+ struct mc13783_pwrb *priv = _priv;
+ int val;
+
+ mc13xxx_irq_ack(priv->mc13783, irq);
+ mc13xxx_reg_read(priv->mc13783, MC13783_REG_INTERRUPT_SENSE_1, &val);
+
+ switch (irq) {
+ case MC13783_IRQ_ONOFD1:
+ val = val & MC13783_IRQSENSE1_ONOFD1S ? 1 : 0;
+ if (priv->flags & MC13783_PWRB_B1_POL_INVERT)
+ val ^= 1;
+ input_report_key(priv->pwr, priv->keymap[0], val);
+ break;
+
+ case MC13783_IRQ_ONOFD2:
+ val = val & MC13783_IRQSENSE1_ONOFD2S ? 1 : 0;
+ if (priv->flags & MC13783_PWRB_B2_POL_INVERT)
+ val ^= 1;
+ input_report_key(priv->pwr, priv->keymap[1], val);
+ break;
+
+ case MC13783_IRQ_ONOFD3:
+ val = val & MC13783_IRQSENSE1_ONOFD3S ? 1 : 0;
+ if (priv->flags & MC13783_PWRB_B3_POL_INVERT)
+ val ^= 1;
+ input_report_key(priv->pwr, priv->keymap[2], val);
+ break;
+ }
+
+ input_sync(priv->pwr);
+
+ return IRQ_HANDLED;
+}
+
+static int __devinit mc13783_pwrbutton_probe(struct platform_device *pdev)
+{
+ const struct mc13xxx_buttons_platform_data *pdata;
+ struct mc13xxx *mc13783 = dev_get_drvdata(pdev->dev.parent);
+ struct input_dev *pwr;
+ struct mc13783_pwrb *priv;
+ int err = 0;
+ int reg = 0;
+
+ pdata = dev_get_platdata(&pdev->dev);
+ if (!pdata) {
+ dev_err(&pdev->dev, "missing platform data\n");
+ return -ENODEV;
+ }
+
+ pwr = input_allocate_device();
+ if (!pwr) {
+ dev_dbg(&pdev->dev, "Can't allocate power button\n");
+ return -ENOMEM;
+ }
+
+ priv = kzalloc(sizeof(*priv), GFP_KERNEL);
+ if (!priv) {
+ err = -ENOMEM;
+ dev_dbg(&pdev->dev, "Can't allocate power button\n");
+ goto free_input_dev;
+ }
+
+ reg |= (pdata->b1on_flags & 0x3) << MC13783_POWER_CONTROL_2_ON1BDBNC;
+ reg |= (pdata->b2on_flags & 0x3) << MC13783_POWER_CONTROL_2_ON2BDBNC;
+ reg |= (pdata->b3on_flags & 0x3) << MC13783_POWER_CONTROL_2_ON3BDBNC;
+
+ priv->pwr = pwr;
+ priv->mc13783 = mc13783;
+
+ mc13xxx_lock(mc13783);
+
+ if (pdata->b1on_flags & MC13783_BUTTON_ENABLE) {
+ priv->keymap[0] = pdata->b1on_key;
+ if (pdata->b1on_key != KEY_RESERVED)
+ __set_bit(pdata->b1on_key, pwr->keybit);
+
+ if (pdata->b1on_flags & MC13783_BUTTON_POL_INVERT)
+ priv->flags |= MC13783_PWRB_B1_POL_INVERT;
+
+ if (pdata->b1on_flags & MC13783_BUTTON_RESET_EN)
+ reg |= MC13783_POWER_CONTROL_2_ON1BRSTEN;
+
+ err = mc13xxx_irq_request(mc13783, MC13783_IRQ_ONOFD1,
+ button_irq, "b1on", priv);
+ if (err) {
+ dev_dbg(&pdev->dev, "Can't request irq\n");
+ goto free_priv;
+ }
+ }
+
+ if (pdata->b2on_flags & MC13783_BUTTON_ENABLE) {
+ priv->keymap[1] = pdata->b2on_key;
+ if (pdata->b2on_key != KEY_RESERVED)
+ __set_bit(pdata->b2on_key, pwr->keybit);
+
+ if (pdata->b2on_flags & MC13783_BUTTON_POL_INVERT)
+ priv->flags |= MC13783_PWRB_B2_POL_INVERT;
+
+ if (pdata->b2on_flags & MC13783_BUTTON_RESET_EN)
+ reg |= MC13783_POWER_CONTROL_2_ON2BRSTEN;
+
+ err = mc13xxx_irq_request(mc13783, MC13783_IRQ_ONOFD2,
+ button_irq, "b2on", priv);
+ if (err) {
+ dev_dbg(&pdev->dev, "Can't request irq\n");
+ goto free_irq_b1;
+ }
+ }
+
+ if (pdata->b3on_flags & MC13783_BUTTON_ENABLE) {
+ priv->keymap[2] = pdata->b3on_key;
+ if (pdata->b3on_key != KEY_RESERVED)
+ __set_bit(pdata->b3on_key, pwr->keybit);
+
+ if (pdata->b3on_flags & MC13783_BUTTON_POL_INVERT)
+ priv->flags |= MC13783_PWRB_B3_POL_INVERT;
+
+ if (pdata->b3on_flags & MC13783_BUTTON_RESET_EN)
+ reg |= MC13783_POWER_CONTROL_2_ON3BRSTEN;
+
+ err = mc13xxx_irq_request(mc13783, MC13783_IRQ_ONOFD3,
+ button_irq, "b3on", priv);
+ if (err) {
+ dev_dbg(&pdev->dev, "Can't request irq: %d\n", err);
+ goto free_irq_b2;
+ }
+ }
+
+ mc13xxx_reg_rmw(mc13783, MC13783_REG_POWER_CONTROL_2, 0x3FE, reg);
+
+ mc13xxx_unlock(mc13783);
+
+ pwr->name = "mc13783_pwrbutton";
+ pwr->phys = "mc13783_pwrbutton/input0";
+ pwr->dev.parent = &pdev->dev;
+
+ pwr->keycode = priv->keymap;
+ pwr->keycodemax = ARRAY_SIZE(priv->keymap);
+ pwr->keycodesize = sizeof(priv->keymap[0]);
+ __set_bit(EV_KEY, pwr->evbit);
+
+ err = input_register_device(pwr);
+ if (err) {
+ dev_dbg(&pdev->dev, "Can't register power button: %d\n", err);
+ goto free_irq;
+ }
+
+ platform_set_drvdata(pdev, priv);
+
+ return 0;
+
+free_irq:
+ mc13xxx_lock(mc13783);
+
+ if (pdata->b3on_flags & MC13783_BUTTON_ENABLE)
+ mc13xxx_irq_free(mc13783, MC13783_IRQ_ONOFD3, priv);
+
+free_irq_b2:
+ if (pdata->b2on_flags & MC13783_BUTTON_ENABLE)
+ mc13xxx_irq_free(mc13783, MC13783_IRQ_ONOFD2, priv);
+
+free_irq_b1:
+ if (pdata->b1on_flags & MC13783_BUTTON_ENABLE)
+ mc13xxx_irq_free(mc13783, MC13783_IRQ_ONOFD1, priv);
+
+free_priv:
+ mc13xxx_unlock(mc13783);
+ kfree(priv);
+
+free_input_dev:
+ input_free_device(pwr);
+
+ return err;
+}
+
+static int __devexit mc13783_pwrbutton_remove(struct platform_device *pdev)
+{
+ struct mc13783_pwrb *priv = platform_get_drvdata(pdev);
+ const struct mc13xxx_buttons_platform_data *pdata;
+
+ pdata = dev_get_platdata(&pdev->dev);
+
+ mc13xxx_lock(priv->mc13783);
+
+ if (pdata->b3on_flags & MC13783_BUTTON_ENABLE)
+ mc13xxx_irq_free(priv->mc13783, MC13783_IRQ_ONOFD3, priv);
+ if (pdata->b2on_flags & MC13783_BUTTON_ENABLE)
+ mc13xxx_irq_free(priv->mc13783, MC13783_IRQ_ONOFD2, priv);
+ if (pdata->b1on_flags & MC13783_BUTTON_ENABLE)
+ mc13xxx_irq_free(priv->mc13783, MC13783_IRQ_ONOFD1, priv);
+
+ mc13xxx_unlock(priv->mc13783);
+
+ input_unregister_device(priv->pwr);
+ kfree(priv);
+ platform_set_drvdata(pdev, NULL);
+
+ return 0;
+}
+
+struct platform_driver mc13783_pwrbutton_driver = {
+ .probe = mc13783_pwrbutton_probe,
+ .remove = __devexit_p(mc13783_pwrbutton_remove),
+ .driver = {
+ .name = "mc13783-pwrbutton",
+ .owner = THIS_MODULE,
+ },
+};
+
+static int __init mc13783_pwrbutton_init(void)
+{
+ return platform_driver_register(&mc13783_pwrbutton_driver);
+}
+module_init(mc13783_pwrbutton_init);
+
+static void __exit mc13783_pwrbutton_exit(void)
+{
+ platform_driver_unregister(&mc13783_pwrbutton_driver);
+}
+module_exit(mc13783_pwrbutton_exit);
+
+MODULE_ALIAS("platform:mc13783-pwrbutton");
+MODULE_DESCRIPTION("MC13783 Power Button");
+MODULE_LICENSE("GPL v2");
+MODULE_AUTHOR("Philippe Retornaz");
diff --git a/drivers/input/misc/mma8450.c b/drivers/input/misc/mma8450.c
new file mode 100644
index 0000000..4d60080
--- /dev/null
+++ b/drivers/input/misc/mma8450.c
@@ -0,0 +1,264 @@
+/*
+ * Driver for Freescale's 3-Axis Accelerometer MMA8450
+ *
+ * Copyright (C) 2011 Freescale Semiconductor, Inc. All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/delay.h>
+#include <linux/i2c.h>
+#include <linux/input-polldev.h>
+#include <linux/of_device.h>
+
+#define MMA8450_DRV_NAME "mma8450"
+
+#define MODE_CHANGE_DELAY_MS 100
+#define POLL_INTERVAL 100
+#define POLL_INTERVAL_MAX 500
+
+/* register definitions */
+#define MMA8450_STATUS 0x00
+#define MMA8450_STATUS_ZXYDR 0x08
+
+#define MMA8450_OUT_X8 0x01
+#define MMA8450_OUT_Y8 0x02
+#define MMA8450_OUT_Z8 0x03
+
+#define MMA8450_OUT_X_LSB 0x05
+#define MMA8450_OUT_X_MSB 0x06
+#define MMA8450_OUT_Y_LSB 0x07
+#define MMA8450_OUT_Y_MSB 0x08
+#define MMA8450_OUT_Z_LSB 0x09
+#define MMA8450_OUT_Z_MSB 0x0a
+
+#define MMA8450_XYZ_DATA_CFG 0x16
+
+#define MMA8450_CTRL_REG1 0x38
+#define MMA8450_CTRL_REG2 0x39
+
+/* mma8450 status */
+struct mma8450 {
+ struct i2c_client *client;
+ struct input_polled_dev *idev;
+};
+
+static int mma8450_read(struct mma8450 *m, unsigned off)
+{
+ struct i2c_client *c = m->client;
+ int ret;
+
+ ret = i2c_smbus_read_byte_data(c, off);
+ if (ret < 0)
+ dev_err(&c->dev,
+ "failed to read register 0x%02x, error %d\n",
+ off, ret);
+
+ return ret;
+}
+
+static int mma8450_write(struct mma8450 *m, unsigned off, u8 v)
+{
+ struct i2c_client *c = m->client;
+ int error;
+
+ error = i2c_smbus_write_byte_data(c, off, v);
+ if (error < 0) {
+ dev_err(&c->dev,
+ "failed to write to register 0x%02x, error %d\n",
+ off, error);
+ return error;
+ }
+
+ return 0;
+}
+
+static int mma8450_read_block(struct mma8450 *m, unsigned off,
+ u8 *buf, size_t size)
+{
+ struct i2c_client *c = m->client;
+ int err;
+
+ err = i2c_smbus_read_i2c_block_data(c, off, size, buf);
+ if (err < 0) {
+ dev_err(&c->dev,
+ "failed to read block data at 0x%02x, error %d\n",
+ MMA8450_OUT_X_LSB, err);
+ return err;
+ }
+
+ return 0;
+}
+
+static void mma8450_poll(struct input_polled_dev *dev)
+{
+ struct mma8450 *m = dev->private;
+ int x, y, z;
+ int ret;
+ u8 buf[6];
+
+ ret = mma8450_read(m, MMA8450_STATUS);
+ if (ret < 0)
+ return;
+
+ if (!(ret & MMA8450_STATUS_ZXYDR))
+ return;
+
+ ret = mma8450_read_block(m, MMA8450_OUT_X_LSB, buf, sizeof(buf));
+ if (ret < 0)
+ return;
+
+ x = ((buf[1] << 4) & 0xff0) | (buf[0] & 0xf);
+ y = ((buf[3] << 4) & 0xff0) | (buf[2] & 0xf);
+ z = ((buf[5] << 4) & 0xff0) | (buf[4] & 0xf);
+
+ input_report_abs(dev->input, ABS_X, x);
+ input_report_abs(dev->input, ABS_Y, y);
+ input_report_abs(dev->input, ABS_Z, z);
+ input_sync(dev->input);
+}
+
+/* Initialize the MMA8450 chip */
+static void mma8450_open(struct input_polled_dev *dev)
+{
+ struct mma8450 *m = dev->private;
+ int err;
+
+ /* enable all events from X/Y/Z, no FIFO */
+ err = mma8450_write(m, MMA8450_XYZ_DATA_CFG, 0x07);
+ if (err)
+ return;
+
+ /*
+ * Sleep mode poll rate - 50Hz
+ * System output data rate - 400Hz
+ * Full scale selection - Active, +/- 2G
+ */
+ err = mma8450_write(m, MMA8450_CTRL_REG1, 0x01);
+ if (err < 0)
+ return;
+
+ msleep(MODE_CHANGE_DELAY_MS);
+}
+
+static void mma8450_close(struct input_polled_dev *dev)
+{
+ struct mma8450 *m = dev->private;
+
+ mma8450_write(m, MMA8450_CTRL_REG1, 0x00);
+ mma8450_write(m, MMA8450_CTRL_REG2, 0x01);
+}
+
+/*
+ * I2C init/probing/exit functions
+ */
+static int __devinit mma8450_probe(struct i2c_client *c,
+ const struct i2c_device_id *id)
+{
+ struct input_polled_dev *idev;
+ struct mma8450 *m;
+ int err;
+
+ m = kzalloc(sizeof(struct mma8450), GFP_KERNEL);
+ idev = input_allocate_polled_device();
+ if (!m || !idev) {
+ err = -ENOMEM;
+ goto err_free_mem;
+ }
+
+ m->client = c;
+ m->idev = idev;
+
+ idev->private = m;
+ idev->input->name = MMA8450_DRV_NAME;
+ idev->input->id.bustype = BUS_I2C;
+ idev->poll = mma8450_poll;
+ idev->poll_interval = POLL_INTERVAL;
+ idev->poll_interval_max = POLL_INTERVAL_MAX;
+ idev->open = mma8450_open;
+ idev->close = mma8450_close;
+
+ __set_bit(EV_ABS, idev->input->evbit);
+ input_set_abs_params(idev->input, ABS_X, -2048, 2047, 32, 32);
+ input_set_abs_params(idev->input, ABS_Y, -2048, 2047, 32, 32);
+ input_set_abs_params(idev->input, ABS_Z, -2048, 2047, 32, 32);
+
+ err = input_register_polled_device(idev);
+ if (err) {
+ dev_err(&c->dev, "failed to register polled input device\n");
+ goto err_free_mem;
+ }
+
+ return 0;
+
+err_free_mem:
+ input_free_polled_device(idev);
+ kfree(m);
+ return err;
+}
+
+static int __devexit mma8450_remove(struct i2c_client *c)
+{
+ struct mma8450 *m = i2c_get_clientdata(c);
+ struct input_polled_dev *idev = m->idev;
+
+ input_unregister_polled_device(idev);
+ input_free_polled_device(idev);
+ kfree(m);
+
+ return 0;
+}
+
+static const struct i2c_device_id mma8450_id[] = {
+ { MMA8450_DRV_NAME, 0 },
+ { },
+};
+MODULE_DEVICE_TABLE(i2c, mma8450_id);
+
+static const struct of_device_id mma8450_dt_ids[] = {
+ { .compatible = "fsl,mma8450", },
+ { /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, mma8450_dt_ids);
+
+static struct i2c_driver mma8450_driver = {
+ .driver = {
+ .name = MMA8450_DRV_NAME,
+ .owner = THIS_MODULE,
+ .of_match_table = mma8450_dt_ids,
+ },
+ .probe = mma8450_probe,
+ .remove = __devexit_p(mma8450_remove),
+ .id_table = mma8450_id,
+};
+
+static int __init mma8450_init(void)
+{
+ return i2c_add_driver(&mma8450_driver);
+}
+module_init(mma8450_init);
+
+static void __exit mma8450_exit(void)
+{
+ i2c_del_driver(&mma8450_driver);
+}
+module_exit(mma8450_exit);
+
+MODULE_AUTHOR("Freescale Semiconductor, Inc.");
+MODULE_DESCRIPTION("MMA8450 3-Axis Accelerometer Driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/input/misc/mpu3050.c b/drivers/input/misc/mpu3050.c
new file mode 100644
index 0000000..f71dc72
--- /dev/null
+++ b/drivers/input/misc/mpu3050.c
@@ -0,0 +1,376 @@
+/*
+ * MPU3050 Tri-axis gyroscope driver
+ *
+ * Copyright (C) 2011 Wistron Co.Ltd
+ * Joseph Lai <joseph_lai@wistron.com>
+ *
+ * Trimmed down by Alan Cox <alan@linux.intel.com> to produce this version
+ *
+ * This is a 'lite' version of the driver, while we consider the right way
+ * to present the other features to user space. In particular it requires the
+ * device has an IRQ, and it only provides an input interface, so is not much
+ * use for device orientation. A fuller version is available from the Meego
+ * tree.
+ *
+ * This program is based on bma023.c.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/platform_device.h>
+#include <linux/mutex.h>
+#include <linux/err.h>
+#include <linux/i2c.h>
+#include <linux/input.h>
+#include <linux/delay.h>
+#include <linux/slab.h>
+#include <linux/pm_runtime.h>
+
+#define MPU3050_CHIP_ID_REG 0x00
+#define MPU3050_CHIP_ID 0x69
+#define MPU3050_XOUT_H 0x1D
+#define MPU3050_PWR_MGM 0x3E
+#define MPU3050_PWR_MGM_POS 6
+#define MPU3050_PWR_MGM_MASK 0x40
+
+#define MPU3050_AUTO_DELAY 1000
+
+#define MPU3050_MIN_VALUE -32768
+#define MPU3050_MAX_VALUE 32767
+
+struct axis_data {
+ s16 x;
+ s16 y;
+ s16 z;
+};
+
+struct mpu3050_sensor {
+ struct i2c_client *client;
+ struct device *dev;
+ struct input_dev *idev;
+};
+
+/**
+ * mpu3050_xyz_read_reg - read the axes values
+ * @buffer: provide register addr and get register
+ * @length: length of register
+ *
+ * Reads the register values in one transaction or returns a negative
+ * error code on failure.
+ */
+static int mpu3050_xyz_read_reg(struct i2c_client *client,
+ u8 *buffer, int length)
+{
+ /*
+ * Annoying we can't make this const because the i2c layer doesn't
+ * declare input buffers const.
+ */
+ char cmd = MPU3050_XOUT_H;
+ struct i2c_msg msg[] = {
+ {
+ .addr = client->addr,
+ .flags = 0,
+ .len = 1,
+ .buf = &cmd,
+ },
+ {
+ .addr = client->addr,
+ .flags = I2C_M_RD,
+ .len = length,
+ .buf = buffer,
+ },
+ };
+
+ return i2c_transfer(client->adapter, msg, 2);
+}
+
+/**
+ * mpu3050_read_xyz - get co-ordinates from device
+ * @client: i2c address of sensor
+ * @coords: co-ordinates to update
+ *
+ * Return the converted X Y and Z co-ordinates from the sensor device
+ */
+static void mpu3050_read_xyz(struct i2c_client *client,
+ struct axis_data *coords)
+{
+ u16 buffer[3];
+
+ mpu3050_xyz_read_reg(client, (u8 *)buffer, 6);
+ coords->x = be16_to_cpu(buffer[0]);
+ coords->y = be16_to_cpu(buffer[1]);
+ coords->z = be16_to_cpu(buffer[2]);
+ dev_dbg(&client->dev, "%s: x %d, y %d, z %d\n", __func__,
+ coords->x, coords->y, coords->z);
+}
+
+/**
+ * mpu3050_set_power_mode - set the power mode
+ * @client: i2c client for the sensor
+ * @val: value to switch on/off of power, 1: normal power, 0: low power
+ *
+ * Put device to normal-power mode or low-power mode.
+ */
+static void mpu3050_set_power_mode(struct i2c_client *client, u8 val)
+{
+ u8 value;
+
+ value = i2c_smbus_read_byte_data(client, MPU3050_PWR_MGM);
+ value = (value & ~MPU3050_PWR_MGM_MASK) |
+ (((val << MPU3050_PWR_MGM_POS) & MPU3050_PWR_MGM_MASK) ^
+ MPU3050_PWR_MGM_MASK);
+ i2c_smbus_write_byte_data(client, MPU3050_PWR_MGM, value);
+}
+
+/**
+ * mpu3050_input_open - called on input event open
+ * @input: input dev of opened device
+ *
+ * The input layer calls this function when input event is opened. The
+ * function will push the device to resume. Then, the device is ready
+ * to provide data.
+ */
+static int mpu3050_input_open(struct input_dev *input)
+{
+ struct mpu3050_sensor *sensor = input_get_drvdata(input);
+
+ pm_runtime_get(sensor->dev);
+
+ return 0;
+}
+
+/**
+ * mpu3050_input_close - called on input event close
+ * @input: input dev of closed device
+ *
+ * The input layer calls this function when input event is closed. The
+ * function will push the device to suspend.
+ */
+static void mpu3050_input_close(struct input_dev *input)
+{
+ struct mpu3050_sensor *sensor = input_get_drvdata(input);
+
+ pm_runtime_put(sensor->dev);
+}
+
+/**
+ * mpu3050_interrupt_thread - handle an IRQ
+ * @irq: interrupt numner
+ * @data: the sensor
+ *
+ * Called by the kernel single threaded after an interrupt occurs. Read
+ * the sensor data and generate an input event for it.
+ */
+static irqreturn_t mpu3050_interrupt_thread(int irq, void *data)
+{
+ struct mpu3050_sensor *sensor = data;
+ struct axis_data axis;
+
+ mpu3050_read_xyz(sensor->client, &axis);
+
+ input_report_abs(sensor->idev, ABS_X, axis.x);
+ input_report_abs(sensor->idev, ABS_Y, axis.y);
+ input_report_abs(sensor->idev, ABS_Z, axis.z);
+ input_sync(sensor->idev);
+
+ return IRQ_HANDLED;
+}
+
+/**
+ * mpu3050_probe - device detection callback
+ * @client: i2c client of found device
+ * @id: id match information
+ *
+ * The I2C layer calls us when it believes a sensor is present at this
+ * address. Probe to see if this is correct and to validate the device.
+ *
+ * If present install the relevant sysfs interfaces and input device.
+ */
+static int __devinit mpu3050_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct mpu3050_sensor *sensor;
+ struct input_dev *idev;
+ int ret;
+ int error;
+
+ sensor = kzalloc(sizeof(struct mpu3050_sensor), GFP_KERNEL);
+ idev = input_allocate_device();
+ if (!sensor || !idev) {
+ dev_err(&client->dev, "failed to allocate driver data\n");
+ error = -ENOMEM;
+ goto err_free_mem;
+ }
+
+ sensor->client = client;
+ sensor->dev = &client->dev;
+ sensor->idev = idev;
+
+ mpu3050_set_power_mode(client, 1);
+ msleep(10);
+
+ ret = i2c_smbus_read_byte_data(client, MPU3050_CHIP_ID_REG);
+ if (ret < 0) {
+ dev_err(&client->dev, "failed to detect device\n");
+ error = -ENXIO;
+ goto err_free_mem;
+ }
+
+ if (ret != MPU3050_CHIP_ID) {
+ dev_err(&client->dev, "unsupported chip id\n");
+ error = -ENXIO;
+ goto err_free_mem;
+ }
+
+ idev->name = "MPU3050";
+ idev->id.bustype = BUS_I2C;
+ idev->dev.parent = &client->dev;
+
+ idev->open = mpu3050_input_open;
+ idev->close = mpu3050_input_close;
+
+ __set_bit(EV_ABS, idev->evbit);
+ input_set_abs_params(idev, ABS_X,
+ MPU3050_MIN_VALUE, MPU3050_MAX_VALUE, 0, 0);
+ input_set_abs_params(idev, ABS_Y,
+ MPU3050_MIN_VALUE, MPU3050_MAX_VALUE, 0, 0);
+ input_set_abs_params(idev, ABS_Z,
+ MPU3050_MIN_VALUE, MPU3050_MAX_VALUE, 0, 0);
+
+ input_set_drvdata(idev, sensor);
+
+ pm_runtime_set_active(&client->dev);
+
+ error = request_threaded_irq(client->irq,
+ NULL, mpu3050_interrupt_thread,
+ IRQF_TRIGGER_RISING,
+ "mpu_int", sensor);
+ if (error) {
+ dev_err(&client->dev,
+ "can't get IRQ %d, error %d\n", client->irq, error);
+ goto err_pm_set_suspended;
+ }
+
+ error = input_register_device(idev);
+ if (error) {
+ dev_err(&client->dev, "failed to register input device\n");
+ goto err_free_irq;
+ }
+
+ pm_runtime_enable(&client->dev);
+ pm_runtime_set_autosuspend_delay(&client->dev, MPU3050_AUTO_DELAY);
+
+ return 0;
+
+err_free_irq:
+ free_irq(client->irq, sensor);
+err_pm_set_suspended:
+ pm_runtime_set_suspended(&client->dev);
+err_free_mem:
+ input_free_device(idev);
+ kfree(sensor);
+ return error;
+}
+
+/**
+ * mpu3050_remove - remove a sensor
+ * @client: i2c client of sensor being removed
+ *
+ * Our sensor is going away, clean up the resources.
+ */
+static int __devexit mpu3050_remove(struct i2c_client *client)
+{
+ struct mpu3050_sensor *sensor = i2c_get_clientdata(client);
+
+ pm_runtime_disable(&client->dev);
+ pm_runtime_set_suspended(&client->dev);
+
+ free_irq(client->irq, sensor);
+ input_unregister_device(sensor->idev);
+ kfree(sensor);
+
+ return 0;
+}
+
+#ifdef CONFIG_PM
+/**
+ * mpu3050_suspend - called on device suspend
+ * @dev: device being suspended
+ *
+ * Put the device into sleep mode before we suspend the machine.
+ */
+static int mpu3050_suspend(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+
+ mpu3050_set_power_mode(client, 0);
+
+ return 0;
+}
+
+/**
+ * mpu3050_resume - called on device resume
+ * @dev: device being resumed
+ *
+ * Put the device into powered mode on resume.
+ */
+static int mpu3050_resume(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+
+ mpu3050_set_power_mode(client, 1);
+ msleep(100); /* wait for gyro chip resume */
+
+ return 0;
+}
+#endif
+
+static UNIVERSAL_DEV_PM_OPS(mpu3050_pm, mpu3050_suspend, mpu3050_resume, NULL);
+
+static const struct i2c_device_id mpu3050_ids[] = {
+ { "mpu3050", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, mpu3050_ids);
+
+static struct i2c_driver mpu3050_i2c_driver = {
+ .driver = {
+ .name = "mpu3050",
+ .owner = THIS_MODULE,
+ .pm = &mpu3050_pm,
+ },
+ .probe = mpu3050_probe,
+ .remove = __devexit_p(mpu3050_remove),
+ .id_table = mpu3050_ids,
+};
+
+static int __init mpu3050_init(void)
+{
+ return i2c_add_driver(&mpu3050_i2c_driver);
+}
+module_init(mpu3050_init);
+
+static void __exit mpu3050_exit(void)
+{
+ i2c_del_driver(&mpu3050_i2c_driver);
+}
+module_exit(mpu3050_exit);
+
+MODULE_AUTHOR("Wistron Corp.");
+MODULE_DESCRIPTION("MPU3050 Tri-axis gyroscope driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/input/misc/pcap_keys.c b/drivers/input/misc/pcap_keys.c
new file mode 100644
index 0000000..99335c2
--- /dev/null
+++ b/drivers/input/misc/pcap_keys.c
@@ -0,0 +1,145 @@
+/*
+ * Input driver for PCAP events:
+ * * Power key
+ * * Headphone button
+ *
+ * Copyright (c) 2008,2009 Ilya Petrov <ilya.muromec@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/platform_device.h>
+#include <linux/input.h>
+#include <linux/mfd/ezx-pcap.h>
+#include <linux/slab.h>
+
+struct pcap_keys {
+ struct pcap_chip *pcap;
+ struct input_dev *input;
+};
+
+/* PCAP2 interrupts us on keypress */
+static irqreturn_t pcap_keys_handler(int irq, void *_pcap_keys)
+{
+ struct pcap_keys *pcap_keys = _pcap_keys;
+ int pirq = irq_to_pcap(pcap_keys->pcap, irq);
+ u32 pstat;
+
+ ezx_pcap_read(pcap_keys->pcap, PCAP_REG_PSTAT, &pstat);
+ pstat &= 1 << pirq;
+
+ switch (pirq) {
+ case PCAP_IRQ_ONOFF:
+ input_report_key(pcap_keys->input, KEY_POWER, !pstat);
+ break;
+ case PCAP_IRQ_MIC:
+ input_report_key(pcap_keys->input, KEY_HP, !pstat);
+ break;
+ }
+
+ input_sync(pcap_keys->input);
+
+ return IRQ_HANDLED;
+}
+
+static int __devinit pcap_keys_probe(struct platform_device *pdev)
+{
+ int err = -ENOMEM;
+ struct pcap_keys *pcap_keys;
+ struct input_dev *input_dev;
+
+ pcap_keys = kmalloc(sizeof(struct pcap_keys), GFP_KERNEL);
+ if (!pcap_keys)
+ return err;
+
+ pcap_keys->pcap = dev_get_drvdata(pdev->dev.parent);
+
+ input_dev = input_allocate_device();
+ if (!input_dev)
+ goto fail;
+
+ pcap_keys->input = input_dev;
+
+ platform_set_drvdata(pdev, pcap_keys);
+ input_dev->name = pdev->name;
+ input_dev->phys = "pcap-keys/input0";
+ input_dev->id.bustype = BUS_HOST;
+ input_dev->dev.parent = &pdev->dev;
+
+ __set_bit(EV_KEY, input_dev->evbit);
+ __set_bit(KEY_POWER, input_dev->keybit);
+ __set_bit(KEY_HP, input_dev->keybit);
+
+ err = input_register_device(input_dev);
+ if (err)
+ goto fail_allocate;
+
+ err = request_irq(pcap_to_irq(pcap_keys->pcap, PCAP_IRQ_ONOFF),
+ pcap_keys_handler, 0, "Power key", pcap_keys);
+ if (err)
+ goto fail_register;
+
+ err = request_irq(pcap_to_irq(pcap_keys->pcap, PCAP_IRQ_MIC),
+ pcap_keys_handler, 0, "Headphone button", pcap_keys);
+ if (err)
+ goto fail_pwrkey;
+
+ return 0;
+
+fail_pwrkey:
+ free_irq(pcap_to_irq(pcap_keys->pcap, PCAP_IRQ_ONOFF), pcap_keys);
+fail_register:
+ input_unregister_device(input_dev);
+ goto fail;
+fail_allocate:
+ input_free_device(input_dev);
+fail:
+ kfree(pcap_keys);
+ return err;
+}
+
+static int __devexit pcap_keys_remove(struct platform_device *pdev)
+{
+ struct pcap_keys *pcap_keys = platform_get_drvdata(pdev);
+
+ free_irq(pcap_to_irq(pcap_keys->pcap, PCAP_IRQ_ONOFF), pcap_keys);
+ free_irq(pcap_to_irq(pcap_keys->pcap, PCAP_IRQ_MIC), pcap_keys);
+
+ input_unregister_device(pcap_keys->input);
+ kfree(pcap_keys);
+
+ return 0;
+}
+
+static struct platform_driver pcap_keys_device_driver = {
+ .probe = pcap_keys_probe,
+ .remove = __devexit_p(pcap_keys_remove),
+ .driver = {
+ .name = "pcap-keys",
+ .owner = THIS_MODULE,
+ }
+};
+
+static int __init pcap_keys_init(void)
+{
+ return platform_driver_register(&pcap_keys_device_driver);
+};
+
+static void __exit pcap_keys_exit(void)
+{
+ platform_driver_unregister(&pcap_keys_device_driver);
+};
+
+module_init(pcap_keys_init);
+module_exit(pcap_keys_exit);
+
+MODULE_DESCRIPTION("Motorola PCAP2 input events driver");
+MODULE_AUTHOR("Ilya Petrov <ilya.muromec@gmail.com>");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:pcap_keys");
diff --git a/drivers/input/misc/pcf50633-input.c b/drivers/input/misc/pcf50633-input.c
new file mode 100644
index 0000000..9556273
--- /dev/null
+++ b/drivers/input/misc/pcf50633-input.c
@@ -0,0 +1,132 @@
+/* NXP PCF50633 Input Driver
+ *
+ * (C) 2006-2008 by Openmoko, Inc.
+ * Author: Balaji Rao <balajirrao@openmoko.org>
+ * All rights reserved.
+ *
+ * Broken down from monstrous PCF50633 driver mainly by
+ * Harald Welte, Andy Green and Werner Almesberger
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/device.h>
+#include <linux/platform_device.h>
+#include <linux/input.h>
+#include <linux/slab.h>
+
+#include <linux/mfd/pcf50633/core.h>
+
+#define PCF50633_OOCSTAT_ONKEY 0x01
+#define PCF50633_REG_OOCSTAT 0x12
+#define PCF50633_REG_OOCMODE 0x10
+
+struct pcf50633_input {
+ struct pcf50633 *pcf;
+ struct input_dev *input_dev;
+};
+
+static void
+pcf50633_input_irq(int irq, void *data)
+{
+ struct pcf50633_input *input;
+ int onkey_released;
+
+ input = data;
+
+ /* We report only one event depending on the key press status */
+ onkey_released = pcf50633_reg_read(input->pcf, PCF50633_REG_OOCSTAT)
+ & PCF50633_OOCSTAT_ONKEY;
+
+ if (irq == PCF50633_IRQ_ONKEYF && !onkey_released)
+ input_report_key(input->input_dev, KEY_POWER, 1);
+ else if (irq == PCF50633_IRQ_ONKEYR && onkey_released)
+ input_report_key(input->input_dev, KEY_POWER, 0);
+
+ input_sync(input->input_dev);
+}
+
+static int __devinit pcf50633_input_probe(struct platform_device *pdev)
+{
+ struct pcf50633_input *input;
+ struct input_dev *input_dev;
+ int ret;
+
+
+ input = kzalloc(sizeof(*input), GFP_KERNEL);
+ if (!input)
+ return -ENOMEM;
+
+ input_dev = input_allocate_device();
+ if (!input_dev) {
+ kfree(input);
+ return -ENOMEM;
+ }
+
+ platform_set_drvdata(pdev, input);
+ input->pcf = dev_to_pcf50633(pdev->dev.parent);
+ input->input_dev = input_dev;
+
+ input_dev->name = "PCF50633 PMU events";
+ input_dev->id.bustype = BUS_I2C;
+ input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_PWR);
+ set_bit(KEY_POWER, input_dev->keybit);
+
+ ret = input_register_device(input_dev);
+ if (ret) {
+ input_free_device(input_dev);
+ kfree(input);
+ return ret;
+ }
+ pcf50633_register_irq(input->pcf, PCF50633_IRQ_ONKEYR,
+ pcf50633_input_irq, input);
+ pcf50633_register_irq(input->pcf, PCF50633_IRQ_ONKEYF,
+ pcf50633_input_irq, input);
+
+ return 0;
+}
+
+static int __devexit pcf50633_input_remove(struct platform_device *pdev)
+{
+ struct pcf50633_input *input = platform_get_drvdata(pdev);
+
+ pcf50633_free_irq(input->pcf, PCF50633_IRQ_ONKEYR);
+ pcf50633_free_irq(input->pcf, PCF50633_IRQ_ONKEYF);
+
+ input_unregister_device(input->input_dev);
+ kfree(input);
+
+ return 0;
+}
+
+static struct platform_driver pcf50633_input_driver = {
+ .driver = {
+ .name = "pcf50633-input",
+ },
+ .probe = pcf50633_input_probe,
+ .remove = __devexit_p(pcf50633_input_remove),
+};
+
+static int __init pcf50633_input_init(void)
+{
+ return platform_driver_register(&pcf50633_input_driver);
+}
+module_init(pcf50633_input_init);
+
+static void __exit pcf50633_input_exit(void)
+{
+ platform_driver_unregister(&pcf50633_input_driver);
+}
+module_exit(pcf50633_input_exit);
+
+MODULE_AUTHOR("Balaji Rao <balajirrao@openmoko.org>");
+MODULE_DESCRIPTION("PCF50633 input driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:pcf50633-input");
diff --git a/drivers/input/misc/pcf8574_keypad.c b/drivers/input/misc/pcf8574_keypad.c
new file mode 100644
index 0000000..08be1a3
--- /dev/null
+++ b/drivers/input/misc/pcf8574_keypad.c
@@ -0,0 +1,233 @@
+/*
+ * Driver for a keypad w/16 buttons connected to a PCF8574 I2C I/O expander
+ *
+ * Copyright 2005-2008 Analog Devices Inc.
+ *
+ * Licensed under the GPL-2 or later.
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/input.h>
+#include <linux/interrupt.h>
+#include <linux/i2c.h>
+#include <linux/slab.h>
+#include <linux/workqueue.h>
+
+#define DRV_NAME "pcf8574_keypad"
+
+static const unsigned char pcf8574_kp_btncode[] = {
+ [0] = KEY_RESERVED,
+ [1] = KEY_ENTER,
+ [2] = KEY_BACKSLASH,
+ [3] = KEY_0,
+ [4] = KEY_RIGHTBRACE,
+ [5] = KEY_C,
+ [6] = KEY_9,
+ [7] = KEY_8,
+ [8] = KEY_7,
+ [9] = KEY_B,
+ [10] = KEY_6,
+ [11] = KEY_5,
+ [12] = KEY_4,
+ [13] = KEY_A,
+ [14] = KEY_3,
+ [15] = KEY_2,
+ [16] = KEY_1
+};
+
+struct kp_data {
+ unsigned short btncode[ARRAY_SIZE(pcf8574_kp_btncode)];
+ struct input_dev *idev;
+ struct i2c_client *client;
+ char name[64];
+ char phys[32];
+ unsigned char laststate;
+};
+
+static short read_state(struct kp_data *lp)
+{
+ unsigned char x, y, a, b;
+
+ i2c_smbus_write_byte(lp->client, 240);
+ x = 0xF & (~(i2c_smbus_read_byte(lp->client) >> 4));
+
+ i2c_smbus_write_byte(lp->client, 15);
+ y = 0xF & (~i2c_smbus_read_byte(lp->client));
+
+ for (a = 0; x > 0; a++)
+ x = x >> 1;
+ for (b = 0; y > 0; b++)
+ y = y >> 1;
+
+ return ((a - 1) * 4) + b;
+}
+
+static irqreturn_t pcf8574_kp_irq_handler(int irq, void *dev_id)
+{
+ struct kp_data *lp = dev_id;
+ unsigned char nextstate = read_state(lp);
+
+ if (lp->laststate != nextstate) {
+ int key_down = nextstate < ARRAY_SIZE(lp->btncode);
+ unsigned short keycode = key_down ?
+ lp->btncode[nextstate] : lp->btncode[lp->laststate];
+
+ input_report_key(lp->idev, keycode, key_down);
+ input_sync(lp->idev);
+
+ lp->laststate = nextstate;
+ }
+
+ return IRQ_HANDLED;
+}
+
+static int __devinit pcf8574_kp_probe(struct i2c_client *client, const struct i2c_device_id *id)
+{
+ int i, ret;
+ struct input_dev *idev;
+ struct kp_data *lp;
+
+ if (i2c_smbus_write_byte(client, 240) < 0) {
+ dev_err(&client->dev, "probe: write fail\n");
+ return -ENODEV;
+ }
+
+ lp = kzalloc(sizeof(*lp), GFP_KERNEL);
+ if (!lp)
+ return -ENOMEM;
+
+ idev = input_allocate_device();
+ if (!idev) {
+ dev_err(&client->dev, "Can't allocate input device\n");
+ ret = -ENOMEM;
+ goto fail_allocate;
+ }
+
+ lp->idev = idev;
+ lp->client = client;
+
+ idev->evbit[0] = BIT_MASK(EV_KEY);
+ idev->keycode = lp->btncode;
+ idev->keycodesize = sizeof(lp->btncode[0]);
+ idev->keycodemax = ARRAY_SIZE(lp->btncode);
+
+ for (i = 0; i < ARRAY_SIZE(pcf8574_kp_btncode); i++) {
+ lp->btncode[i] = pcf8574_kp_btncode[i];
+ __set_bit(lp->btncode[i] & KEY_MAX, idev->keybit);
+ }
+
+ sprintf(lp->name, DRV_NAME);
+ sprintf(lp->phys, "kp_data/input0");
+
+ idev->name = lp->name;
+ idev->phys = lp->phys;
+ idev->id.bustype = BUS_I2C;
+ idev->id.vendor = 0x0001;
+ idev->id.product = 0x0001;
+ idev->id.version = 0x0100;
+
+ lp->laststate = read_state(lp);
+
+ ret = request_threaded_irq(client->irq, NULL, pcf8574_kp_irq_handler,
+ IRQF_TRIGGER_LOW | IRQF_ONESHOT,
+ DRV_NAME, lp);
+ if (ret) {
+ dev_err(&client->dev, "IRQ %d is not free\n", client->irq);
+ goto fail_free_device;
+ }
+
+ ret = input_register_device(idev);
+ if (ret) {
+ dev_err(&client->dev, "input_register_device() failed\n");
+ goto fail_free_irq;
+ }
+
+ i2c_set_clientdata(client, lp);
+ return 0;
+
+ fail_free_irq:
+ free_irq(client->irq, lp);
+ fail_free_device:
+ input_free_device(idev);
+ fail_allocate:
+ kfree(lp);
+
+ return ret;
+}
+
+static int __devexit pcf8574_kp_remove(struct i2c_client *client)
+{
+ struct kp_data *lp = i2c_get_clientdata(client);
+
+ free_irq(client->irq, lp);
+
+ input_unregister_device(lp->idev);
+ kfree(lp);
+
+ return 0;
+}
+
+#ifdef CONFIG_PM
+static int pcf8574_kp_resume(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+
+ enable_irq(client->irq);
+
+ return 0;
+}
+
+static int pcf8574_kp_suspend(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+
+ disable_irq(client->irq);
+
+ return 0;
+}
+
+static const struct dev_pm_ops pcf8574_kp_pm_ops = {
+ .suspend = pcf8574_kp_suspend,
+ .resume = pcf8574_kp_resume,
+};
+
+#else
+# define pcf8574_kp_resume NULL
+# define pcf8574_kp_suspend NULL
+#endif
+
+static const struct i2c_device_id pcf8574_kp_id[] = {
+ { DRV_NAME, 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, pcf8574_kp_id);
+
+static struct i2c_driver pcf8574_kp_driver = {
+ .driver = {
+ .name = DRV_NAME,
+ .owner = THIS_MODULE,
+#ifdef CONFIG_PM
+ .pm = &pcf8574_kp_pm_ops,
+#endif
+ },
+ .probe = pcf8574_kp_probe,
+ .remove = __devexit_p(pcf8574_kp_remove),
+ .id_table = pcf8574_kp_id,
+};
+
+static int __init pcf8574_kp_init(void)
+{
+ return i2c_add_driver(&pcf8574_kp_driver);
+}
+module_init(pcf8574_kp_init);
+
+static void __exit pcf8574_kp_exit(void)
+{
+ i2c_del_driver(&pcf8574_kp_driver);
+}
+module_exit(pcf8574_kp_exit);
+
+MODULE_AUTHOR("Michael Hennerich");
+MODULE_DESCRIPTION("Keypad input driver for 16 keys connected to PCF8574");
+MODULE_LICENSE("GPL");
diff --git a/drivers/input/misc/pcspkr.c b/drivers/input/misc/pcspkr.c
new file mode 100644
index 0000000..34f4d2e
--- /dev/null
+++ b/drivers/input/misc/pcspkr.c
@@ -0,0 +1,150 @@
+/*
+ * PC Speaker beeper driver for Linux
+ *
+ * Copyright (c) 2002 Vojtech Pavlik
+ * Copyright (c) 1992 Orest Zborowski
+ *
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/i8253.h>
+#include <linux/init.h>
+#include <linux/input.h>
+#include <linux/platform_device.h>
+#include <linux/timex.h>
+#include <asm/io.h>
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
+MODULE_DESCRIPTION("PC Speaker beeper driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:pcspkr");
+
+static int pcspkr_event(struct input_dev *dev, unsigned int type, unsigned int code, int value)
+{
+ unsigned int count = 0;
+ unsigned long flags;
+
+ if (type != EV_SND)
+ return -1;
+
+ switch (code) {
+ case SND_BELL: if (value) value = 1000;
+ case SND_TONE: break;
+ default: return -1;
+ }
+
+ if (value > 20 && value < 32767)
+ count = PIT_TICK_RATE / value;
+
+ raw_spin_lock_irqsave(&i8253_lock, flags);
+
+ if (count) {
+ /* set command for counter 2, 2 byte write */
+ outb_p(0xB6, 0x43);
+ /* select desired HZ */
+ outb_p(count & 0xff, 0x42);
+ outb((count >> 8) & 0xff, 0x42);
+ /* enable counter 2 */
+ outb_p(inb_p(0x61) | 3, 0x61);
+ } else {
+ /* disable counter 2 */
+ outb(inb_p(0x61) & 0xFC, 0x61);
+ }
+
+ raw_spin_unlock_irqrestore(&i8253_lock, flags);
+
+ return 0;
+}
+
+static int __devinit pcspkr_probe(struct platform_device *dev)
+{
+ struct input_dev *pcspkr_dev;
+ int err;
+
+ pcspkr_dev = input_allocate_device();
+ if (!pcspkr_dev)
+ return -ENOMEM;
+
+ pcspkr_dev->name = "PC Speaker";
+ pcspkr_dev->phys = "isa0061/input0";
+ pcspkr_dev->id.bustype = BUS_ISA;
+ pcspkr_dev->id.vendor = 0x001f;
+ pcspkr_dev->id.product = 0x0001;
+ pcspkr_dev->id.version = 0x0100;
+ pcspkr_dev->dev.parent = &dev->dev;
+
+ pcspkr_dev->evbit[0] = BIT_MASK(EV_SND);
+ pcspkr_dev->sndbit[0] = BIT_MASK(SND_BELL) | BIT_MASK(SND_TONE);
+ pcspkr_dev->event = pcspkr_event;
+
+ err = input_register_device(pcspkr_dev);
+ if (err) {
+ input_free_device(pcspkr_dev);
+ return err;
+ }
+
+ platform_set_drvdata(dev, pcspkr_dev);
+
+ return 0;
+}
+
+static int __devexit pcspkr_remove(struct platform_device *dev)
+{
+ struct input_dev *pcspkr_dev = platform_get_drvdata(dev);
+
+ input_unregister_device(pcspkr_dev);
+ platform_set_drvdata(dev, NULL);
+ /* turn off the speaker */
+ pcspkr_event(NULL, EV_SND, SND_BELL, 0);
+
+ return 0;
+}
+
+static int pcspkr_suspend(struct device *dev)
+{
+ pcspkr_event(NULL, EV_SND, SND_BELL, 0);
+
+ return 0;
+}
+
+static void pcspkr_shutdown(struct platform_device *dev)
+{
+ /* turn off the speaker */
+ pcspkr_event(NULL, EV_SND, SND_BELL, 0);
+}
+
+static const struct dev_pm_ops pcspkr_pm_ops = {
+ .suspend = pcspkr_suspend,
+};
+
+static struct platform_driver pcspkr_platform_driver = {
+ .driver = {
+ .name = "pcspkr",
+ .owner = THIS_MODULE,
+ .pm = &pcspkr_pm_ops,
+ },
+ .probe = pcspkr_probe,
+ .remove = __devexit_p(pcspkr_remove),
+ .shutdown = pcspkr_shutdown,
+};
+
+
+static int __init pcspkr_init(void)
+{
+ return platform_driver_register(&pcspkr_platform_driver);
+}
+
+static void __exit pcspkr_exit(void)
+{
+ platform_driver_unregister(&pcspkr_platform_driver);
+}
+
+module_init(pcspkr_init);
+module_exit(pcspkr_exit);
diff --git a/drivers/input/misc/pm8xxx-vibrator.c b/drivers/input/misc/pm8xxx-vibrator.c
new file mode 100644
index 0000000..4319293
--- /dev/null
+++ b/drivers/input/misc/pm8xxx-vibrator.c
@@ -0,0 +1,296 @@
+/* Copyright (c) 2010-2011, Code Aurora Forum. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/platform_device.h>
+#include <linux/input.h>
+#include <linux/slab.h>
+#include <linux/mfd/pm8xxx/core.h>
+
+#define VIB_DRV 0x4A
+
+#define VIB_DRV_SEL_MASK 0xf8
+#define VIB_DRV_SEL_SHIFT 0x03
+#define VIB_DRV_EN_MANUAL_MASK 0xfc
+
+#define VIB_MAX_LEVEL_mV (3100)
+#define VIB_MIN_LEVEL_mV (1200)
+#define VIB_MAX_LEVELS (VIB_MAX_LEVEL_mV - VIB_MIN_LEVEL_mV)
+
+#define MAX_FF_SPEED 0xff
+
+/**
+ * struct pm8xxx_vib - structure to hold vibrator data
+ * @vib_input_dev: input device supporting force feedback
+ * @work: work structure to set the vibration parameters
+ * @dev: device supporting force feedback
+ * @speed: speed of vibration set from userland
+ * @active: state of vibrator
+ * @level: level of vibration to set in the chip
+ * @reg_vib_drv: VIB_DRV register value
+ */
+struct pm8xxx_vib {
+ struct input_dev *vib_input_dev;
+ struct work_struct work;
+ struct device *dev;
+ int speed;
+ int level;
+ bool active;
+ u8 reg_vib_drv;
+};
+
+/**
+ * pm8xxx_vib_read_u8 - helper to read a byte from pmic chip
+ * @vib: pointer to vibrator structure
+ * @data: placeholder for data to be read
+ * @reg: register address
+ */
+static int pm8xxx_vib_read_u8(struct pm8xxx_vib *vib,
+ u8 *data, u16 reg)
+{
+ int rc;
+
+ rc = pm8xxx_readb(vib->dev->parent, reg, data);
+ if (rc < 0)
+ dev_warn(vib->dev, "Error reading pm8xxx reg 0x%x(0x%x)\n",
+ reg, rc);
+ return rc;
+}
+
+/**
+ * pm8xxx_vib_write_u8 - helper to write a byte to pmic chip
+ * @vib: pointer to vibrator structure
+ * @data: data to write
+ * @reg: register address
+ */
+static int pm8xxx_vib_write_u8(struct pm8xxx_vib *vib,
+ u8 data, u16 reg)
+{
+ int rc;
+
+ rc = pm8xxx_writeb(vib->dev->parent, reg, data);
+ if (rc < 0)
+ dev_warn(vib->dev, "Error writing pm8xxx reg 0x%x(0x%x)\n",
+ reg, rc);
+ return rc;
+}
+
+/**
+ * pm8xxx_vib_set - handler to start/stop vibration
+ * @vib: pointer to vibrator structure
+ * @on: state to set
+ */
+static int pm8xxx_vib_set(struct pm8xxx_vib *vib, bool on)
+{
+ int rc;
+ u8 val = vib->reg_vib_drv;
+
+ if (on)
+ val |= ((vib->level << VIB_DRV_SEL_SHIFT) & VIB_DRV_SEL_MASK);
+ else
+ val &= ~VIB_DRV_SEL_MASK;
+
+ rc = pm8xxx_vib_write_u8(vib, val, VIB_DRV);
+ if (rc < 0)
+ return rc;
+
+ vib->reg_vib_drv = val;
+ return 0;
+}
+
+/**
+ * pm8xxx_work_handler - worker to set vibration level
+ * @work: pointer to work_struct
+ */
+static void pm8xxx_work_handler(struct work_struct *work)
+{
+ struct pm8xxx_vib *vib = container_of(work, struct pm8xxx_vib, work);
+ int rc;
+ u8 val;
+
+ rc = pm8xxx_vib_read_u8(vib, &val, VIB_DRV);
+ if (rc < 0)
+ return;
+
+ /*
+ * pmic vibrator supports voltage ranges from 1.2 to 3.1V, so
+ * scale the level to fit into these ranges.
+ */
+ if (vib->speed) {
+ vib->active = true;
+ vib->level = ((VIB_MAX_LEVELS * vib->speed) / MAX_FF_SPEED) +
+ VIB_MIN_LEVEL_mV;
+ vib->level /= 100;
+ } else {
+ vib->active = false;
+ vib->level = VIB_MIN_LEVEL_mV / 100;
+ }
+
+ pm8xxx_vib_set(vib, vib->active);
+}
+
+/**
+ * pm8xxx_vib_close - callback of input close callback
+ * @dev: input device pointer
+ *
+ * Turns off the vibrator.
+ */
+static void pm8xxx_vib_close(struct input_dev *dev)
+{
+ struct pm8xxx_vib *vib = input_get_drvdata(dev);
+
+ cancel_work_sync(&vib->work);
+ if (vib->active)
+ pm8xxx_vib_set(vib, false);
+}
+
+/**
+ * pm8xxx_vib_play_effect - function to handle vib effects.
+ * @dev: input device pointer
+ * @data: data of effect
+ * @effect: effect to play
+ *
+ * Currently this driver supports only rumble effects.
+ */
+static int pm8xxx_vib_play_effect(struct input_dev *dev, void *data,
+ struct ff_effect *effect)
+{
+ struct pm8xxx_vib *vib = input_get_drvdata(dev);
+
+ vib->speed = effect->u.rumble.strong_magnitude >> 8;
+ if (!vib->speed)
+ vib->speed = effect->u.rumble.weak_magnitude >> 9;
+
+ schedule_work(&vib->work);
+
+ return 0;
+}
+
+static int __devinit pm8xxx_vib_probe(struct platform_device *pdev)
+
+{
+ struct pm8xxx_vib *vib;
+ struct input_dev *input_dev;
+ int error;
+ u8 val;
+
+ vib = kzalloc(sizeof(*vib), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!vib || !input_dev) {
+ dev_err(&pdev->dev, "couldn't allocate memory\n");
+ error = -ENOMEM;
+ goto err_free_mem;
+ }
+
+ INIT_WORK(&vib->work, pm8xxx_work_handler);
+ vib->dev = &pdev->dev;
+ vib->vib_input_dev = input_dev;
+
+ /* operate in manual mode */
+ error = pm8xxx_vib_read_u8(vib, &val, VIB_DRV);
+ if (error < 0)
+ goto err_free_mem;
+ val &= ~VIB_DRV_EN_MANUAL_MASK;
+ error = pm8xxx_vib_write_u8(vib, val, VIB_DRV);
+ if (error < 0)
+ goto err_free_mem;
+
+ vib->reg_vib_drv = val;
+
+ input_dev->name = "pm8xxx_vib_ffmemless";
+ input_dev->id.version = 1;
+ input_dev->dev.parent = &pdev->dev;
+ input_dev->close = pm8xxx_vib_close;
+ input_set_drvdata(input_dev, vib);
+ input_set_capability(vib->vib_input_dev, EV_FF, FF_RUMBLE);
+
+ error = input_ff_create_memless(input_dev, NULL,
+ pm8xxx_vib_play_effect);
+ if (error) {
+ dev_err(&pdev->dev,
+ "couldn't register vibrator as FF device\n");
+ goto err_free_mem;
+ }
+
+ error = input_register_device(input_dev);
+ if (error) {
+ dev_err(&pdev->dev, "couldn't register input device\n");
+ goto err_destroy_memless;
+ }
+
+ platform_set_drvdata(pdev, vib);
+ return 0;
+
+err_destroy_memless:
+ input_ff_destroy(input_dev);
+err_free_mem:
+ input_free_device(input_dev);
+ kfree(vib);
+
+ return error;
+}
+
+static int __devexit pm8xxx_vib_remove(struct platform_device *pdev)
+{
+ struct pm8xxx_vib *vib = platform_get_drvdata(pdev);
+
+ input_unregister_device(vib->vib_input_dev);
+ kfree(vib);
+
+ platform_set_drvdata(pdev, NULL);
+
+ return 0;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int pm8xxx_vib_suspend(struct device *dev)
+{
+ struct pm8xxx_vib *vib = dev_get_drvdata(dev);
+
+ /* Turn off the vibrator */
+ pm8xxx_vib_set(vib, false);
+
+ return 0;
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(pm8xxx_vib_pm_ops, pm8xxx_vib_suspend, NULL);
+
+static struct platform_driver pm8xxx_vib_driver = {
+ .probe = pm8xxx_vib_probe,
+ .remove = __devexit_p(pm8xxx_vib_remove),
+ .driver = {
+ .name = "pm8xxx-vib",
+ .owner = THIS_MODULE,
+ .pm = &pm8xxx_vib_pm_ops,
+ },
+};
+
+static int __init pm8xxx_vib_init(void)
+{
+ return platform_driver_register(&pm8xxx_vib_driver);
+}
+module_init(pm8xxx_vib_init);
+
+static void __exit pm8xxx_vib_exit(void)
+{
+ platform_driver_unregister(&pm8xxx_vib_driver);
+}
+module_exit(pm8xxx_vib_exit);
+
+MODULE_ALIAS("platform:pm8xxx_vib");
+MODULE_DESCRIPTION("PMIC8xxx vibrator driver based on ff-memless framework");
+MODULE_LICENSE("GPL v2");
+MODULE_AUTHOR("Amy Maloche <amaloche@codeaurora.org>");
diff --git a/drivers/input/misc/pmic8xxx-pwrkey.c b/drivers/input/misc/pmic8xxx-pwrkey.c
new file mode 100644
index 0000000..b3cfb9c
--- /dev/null
+++ b/drivers/input/misc/pmic8xxx-pwrkey.c
@@ -0,0 +1,232 @@
+/* Copyright (c) 2010-2011, Code Aurora Forum. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/slab.h>
+#include <linux/input.h>
+#include <linux/interrupt.h>
+#include <linux/platform_device.h>
+#include <linux/log2.h>
+
+#include <linux/mfd/pm8xxx/core.h>
+#include <linux/input/pmic8xxx-pwrkey.h>
+
+#define PON_CNTL_1 0x1C
+#define PON_CNTL_PULL_UP BIT(7)
+#define PON_CNTL_TRIG_DELAY_MASK (0x7)
+
+/**
+ * struct pmic8xxx_pwrkey - pmic8xxx pwrkey information
+ * @key_press_irq: key press irq number
+ */
+struct pmic8xxx_pwrkey {
+ struct input_dev *pwr;
+ int key_press_irq;
+};
+
+static irqreturn_t pwrkey_press_irq(int irq, void *_pwrkey)
+{
+ struct pmic8xxx_pwrkey *pwrkey = _pwrkey;
+
+ input_report_key(pwrkey->pwr, KEY_POWER, 1);
+ input_sync(pwrkey->pwr);
+
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t pwrkey_release_irq(int irq, void *_pwrkey)
+{
+ struct pmic8xxx_pwrkey *pwrkey = _pwrkey;
+
+ input_report_key(pwrkey->pwr, KEY_POWER, 0);
+ input_sync(pwrkey->pwr);
+
+ return IRQ_HANDLED;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int pmic8xxx_pwrkey_suspend(struct device *dev)
+{
+ struct pmic8xxx_pwrkey *pwrkey = dev_get_drvdata(dev);
+
+ if (device_may_wakeup(dev))
+ enable_irq_wake(pwrkey->key_press_irq);
+
+ return 0;
+}
+
+static int pmic8xxx_pwrkey_resume(struct device *dev)
+{
+ struct pmic8xxx_pwrkey *pwrkey = dev_get_drvdata(dev);
+
+ if (device_may_wakeup(dev))
+ disable_irq_wake(pwrkey->key_press_irq);
+
+ return 0;
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(pm8xxx_pwr_key_pm_ops,
+ pmic8xxx_pwrkey_suspend, pmic8xxx_pwrkey_resume);
+
+static int __devinit pmic8xxx_pwrkey_probe(struct platform_device *pdev)
+{
+ struct input_dev *pwr;
+ int key_release_irq = platform_get_irq(pdev, 0);
+ int key_press_irq = platform_get_irq(pdev, 1);
+ int err;
+ unsigned int delay;
+ u8 pon_cntl;
+ struct pmic8xxx_pwrkey *pwrkey;
+ const struct pm8xxx_pwrkey_platform_data *pdata =
+ dev_get_platdata(&pdev->dev);
+
+ if (!pdata) {
+ dev_err(&pdev->dev, "power key platform data not supplied\n");
+ return -EINVAL;
+ }
+
+ if (pdata->kpd_trigger_delay_us > 62500) {
+ dev_err(&pdev->dev, "invalid power key trigger delay\n");
+ return -EINVAL;
+ }
+
+ pwrkey = kzalloc(sizeof(*pwrkey), GFP_KERNEL);
+ if (!pwrkey)
+ return -ENOMEM;
+
+ pwr = input_allocate_device();
+ if (!pwr) {
+ dev_dbg(&pdev->dev, "Can't allocate power button\n");
+ err = -ENOMEM;
+ goto free_pwrkey;
+ }
+
+ input_set_capability(pwr, EV_KEY, KEY_POWER);
+
+ pwr->name = "pmic8xxx_pwrkey";
+ pwr->phys = "pmic8xxx_pwrkey/input0";
+ pwr->dev.parent = &pdev->dev;
+
+ delay = (pdata->kpd_trigger_delay_us << 10) / USEC_PER_SEC;
+ delay = 1 + ilog2(delay);
+
+ err = pm8xxx_readb(pdev->dev.parent, PON_CNTL_1, &pon_cntl);
+ if (err < 0) {
+ dev_err(&pdev->dev, "failed reading PON_CNTL_1 err=%d\n", err);
+ goto free_input_dev;
+ }
+
+ pon_cntl &= ~PON_CNTL_TRIG_DELAY_MASK;
+ pon_cntl |= (delay & PON_CNTL_TRIG_DELAY_MASK);
+ if (pdata->pull_up)
+ pon_cntl |= PON_CNTL_PULL_UP;
+ else
+ pon_cntl &= ~PON_CNTL_PULL_UP;
+
+ err = pm8xxx_writeb(pdev->dev.parent, PON_CNTL_1, pon_cntl);
+ if (err < 0) {
+ dev_err(&pdev->dev, "failed writing PON_CNTL_1 err=%d\n", err);
+ goto free_input_dev;
+ }
+
+ err = input_register_device(pwr);
+ if (err) {
+ dev_dbg(&pdev->dev, "Can't register power key: %d\n", err);
+ goto free_input_dev;
+ }
+
+ pwrkey->key_press_irq = key_press_irq;
+ pwrkey->pwr = pwr;
+
+ platform_set_drvdata(pdev, pwrkey);
+
+ err = request_irq(key_press_irq, pwrkey_press_irq,
+ IRQF_TRIGGER_RISING, "pmic8xxx_pwrkey_press", pwrkey);
+ if (err < 0) {
+ dev_dbg(&pdev->dev, "Can't get %d IRQ for pwrkey: %d\n",
+ key_press_irq, err);
+ goto unreg_input_dev;
+ }
+
+ err = request_irq(key_release_irq, pwrkey_release_irq,
+ IRQF_TRIGGER_RISING, "pmic8xxx_pwrkey_release", pwrkey);
+ if (err < 0) {
+ dev_dbg(&pdev->dev, "Can't get %d IRQ for pwrkey: %d\n",
+ key_release_irq, err);
+
+ goto free_press_irq;
+ }
+
+ device_init_wakeup(&pdev->dev, pdata->wakeup);
+
+ return 0;
+
+free_press_irq:
+ free_irq(key_press_irq, NULL);
+unreg_input_dev:
+ platform_set_drvdata(pdev, NULL);
+ input_unregister_device(pwr);
+ pwr = NULL;
+free_input_dev:
+ input_free_device(pwr);
+free_pwrkey:
+ kfree(pwrkey);
+ return err;
+}
+
+static int __devexit pmic8xxx_pwrkey_remove(struct platform_device *pdev)
+{
+ struct pmic8xxx_pwrkey *pwrkey = platform_get_drvdata(pdev);
+ int key_release_irq = platform_get_irq(pdev, 0);
+ int key_press_irq = platform_get_irq(pdev, 1);
+
+ device_init_wakeup(&pdev->dev, 0);
+
+ free_irq(key_press_irq, pwrkey);
+ free_irq(key_release_irq, pwrkey);
+ input_unregister_device(pwrkey->pwr);
+ platform_set_drvdata(pdev, NULL);
+ kfree(pwrkey);
+
+ return 0;
+}
+
+static struct platform_driver pmic8xxx_pwrkey_driver = {
+ .probe = pmic8xxx_pwrkey_probe,
+ .remove = __devexit_p(pmic8xxx_pwrkey_remove),
+ .driver = {
+ .name = PM8XXX_PWRKEY_DEV_NAME,
+ .owner = THIS_MODULE,
+ .pm = &pm8xxx_pwr_key_pm_ops,
+ },
+};
+
+static int __init pmic8xxx_pwrkey_init(void)
+{
+ return platform_driver_register(&pmic8xxx_pwrkey_driver);
+}
+module_init(pmic8xxx_pwrkey_init);
+
+static void __exit pmic8xxx_pwrkey_exit(void)
+{
+ platform_driver_unregister(&pmic8xxx_pwrkey_driver);
+}
+module_exit(pmic8xxx_pwrkey_exit);
+
+MODULE_ALIAS("platform:pmic8xxx_pwrkey");
+MODULE_DESCRIPTION("PMIC8XXX Power Key driver");
+MODULE_LICENSE("GPL v2");
+MODULE_AUTHOR("Trilok Soni <tsoni@codeaurora.org>");
diff --git a/drivers/input/misc/powermate.c b/drivers/input/misc/powermate.c
new file mode 100644
index 0000000..f459471
--- /dev/null
+++ b/drivers/input/misc/powermate.c
@@ -0,0 +1,459 @@
+/*
+ * A driver for the Griffin Technology, Inc. "PowerMate" USB controller dial.
+ *
+ * v1.1, (c)2002 William R Sowerbutts <will@sowerbutts.com>
+ *
+ * This device is a anodised aluminium knob which connects over USB. It can measure
+ * clockwise and anticlockwise rotation. The dial also acts as a pushbutton with
+ * a spring for automatic release. The base contains a pair of LEDs which illuminate
+ * the translucent base. It rotates without limit and reports its relative rotation
+ * back to the host when polled by the USB controller.
+ *
+ * Testing with the knob I have has shown that it measures approximately 94 "clicks"
+ * for one full rotation. Testing with my High Speed Rotation Actuator (ok, it was
+ * a variable speed cordless electric drill) has shown that the device can measure
+ * speeds of up to 7 clicks either clockwise or anticlockwise between pollings from
+ * the host. If it counts more than 7 clicks before it is polled, it will wrap back
+ * to zero and start counting again. This was at quite high speed, however, almost
+ * certainly faster than the human hand could turn it. Griffin say that it loses a
+ * pulse or two on a direction change; the granularity is so fine that I never
+ * noticed this in practice.
+ *
+ * The device's microcontroller can be programmed to set the LED to either a constant
+ * intensity, or to a rhythmic pulsing. Several patterns and speeds are available.
+ *
+ * Griffin were very happy to provide documentation and free hardware for development.
+ *
+ * Some userspace tools are available on the web: http://sowerbutts.com/powermate/
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/spinlock.h>
+#include <linux/usb/input.h>
+
+#define POWERMATE_VENDOR 0x077d /* Griffin Technology, Inc. */
+#define POWERMATE_PRODUCT_NEW 0x0410 /* Griffin PowerMate */
+#define POWERMATE_PRODUCT_OLD 0x04AA /* Griffin soundKnob */
+
+#define CONTOUR_VENDOR 0x05f3 /* Contour Design, Inc. */
+#define CONTOUR_JOG 0x0240 /* Jog and Shuttle */
+
+/* these are the command codes we send to the device */
+#define SET_STATIC_BRIGHTNESS 0x01
+#define SET_PULSE_ASLEEP 0x02
+#define SET_PULSE_AWAKE 0x03
+#define SET_PULSE_MODE 0x04
+
+/* these refer to bits in the powermate_device's requires_update field. */
+#define UPDATE_STATIC_BRIGHTNESS (1<<0)
+#define UPDATE_PULSE_ASLEEP (1<<1)
+#define UPDATE_PULSE_AWAKE (1<<2)
+#define UPDATE_PULSE_MODE (1<<3)
+
+/* at least two versions of the hardware exist, with differing payload
+ sizes. the first three bytes always contain the "interesting" data in
+ the relevant format. */
+#define POWERMATE_PAYLOAD_SIZE_MAX 6
+#define POWERMATE_PAYLOAD_SIZE_MIN 3
+struct powermate_device {
+ signed char *data;
+ dma_addr_t data_dma;
+ struct urb *irq, *config;
+ struct usb_ctrlrequest *configcr;
+ struct usb_device *udev;
+ struct input_dev *input;
+ spinlock_t lock;
+ int static_brightness;
+ int pulse_speed;
+ int pulse_table;
+ int pulse_asleep;
+ int pulse_awake;
+ int requires_update; // physical settings which are out of sync
+ char phys[64];
+};
+
+static char pm_name_powermate[] = "Griffin PowerMate";
+static char pm_name_soundknob[] = "Griffin SoundKnob";
+
+static void powermate_config_complete(struct urb *urb);
+
+/* Callback for data arriving from the PowerMate over the USB interrupt pipe */
+static void powermate_irq(struct urb *urb)
+{
+ struct powermate_device *pm = urb->context;
+ int retval;
+
+ switch (urb->status) {
+ case 0:
+ /* success */
+ break;
+ case -ECONNRESET:
+ case -ENOENT:
+ case -ESHUTDOWN:
+ /* this urb is terminated, clean up */
+ dbg("%s - urb shutting down with status: %d", __func__, urb->status);
+ return;
+ default:
+ dbg("%s - nonzero urb status received: %d", __func__, urb->status);
+ goto exit;
+ }
+
+ /* handle updates to device state */
+ input_report_key(pm->input, BTN_0, pm->data[0] & 0x01);
+ input_report_rel(pm->input, REL_DIAL, pm->data[1]);
+ input_sync(pm->input);
+
+exit:
+ retval = usb_submit_urb (urb, GFP_ATOMIC);
+ if (retval)
+ err ("%s - usb_submit_urb failed with result %d",
+ __func__, retval);
+}
+
+/* Decide if we need to issue a control message and do so. Must be called with pm->lock taken */
+static void powermate_sync_state(struct powermate_device *pm)
+{
+ if (pm->requires_update == 0)
+ return; /* no updates are required */
+ if (pm->config->status == -EINPROGRESS)
+ return; /* an update is already in progress; it'll issue this update when it completes */
+
+ if (pm->requires_update & UPDATE_PULSE_ASLEEP){
+ pm->configcr->wValue = cpu_to_le16( SET_PULSE_ASLEEP );
+ pm->configcr->wIndex = cpu_to_le16( pm->pulse_asleep ? 1 : 0 );
+ pm->requires_update &= ~UPDATE_PULSE_ASLEEP;
+ }else if (pm->requires_update & UPDATE_PULSE_AWAKE){
+ pm->configcr->wValue = cpu_to_le16( SET_PULSE_AWAKE );
+ pm->configcr->wIndex = cpu_to_le16( pm->pulse_awake ? 1 : 0 );
+ pm->requires_update &= ~UPDATE_PULSE_AWAKE;
+ }else if (pm->requires_update & UPDATE_PULSE_MODE){
+ int op, arg;
+ /* the powermate takes an operation and an argument for its pulse algorithm.
+ the operation can be:
+ 0: divide the speed
+ 1: pulse at normal speed
+ 2: multiply the speed
+ the argument only has an effect for operations 0 and 2, and ranges between
+ 1 (least effect) to 255 (maximum effect).
+
+ thus, several states are equivalent and are coalesced into one state.
+
+ we map this onto a range from 0 to 510, with:
+ 0 -- 254 -- use divide (0 = slowest)
+ 255 -- use normal speed
+ 256 -- 510 -- use multiple (510 = fastest).
+
+ Only values of 'arg' quite close to 255 are particularly useful/spectacular.
+ */
+ if (pm->pulse_speed < 255) {
+ op = 0; // divide
+ arg = 255 - pm->pulse_speed;
+ } else if (pm->pulse_speed > 255) {
+ op = 2; // multiply
+ arg = pm->pulse_speed - 255;
+ } else {
+ op = 1; // normal speed
+ arg = 0; // can be any value
+ }
+ pm->configcr->wValue = cpu_to_le16( (pm->pulse_table << 8) | SET_PULSE_MODE );
+ pm->configcr->wIndex = cpu_to_le16( (arg << 8) | op );
+ pm->requires_update &= ~UPDATE_PULSE_MODE;
+ } else if (pm->requires_update & UPDATE_STATIC_BRIGHTNESS) {
+ pm->configcr->wValue = cpu_to_le16( SET_STATIC_BRIGHTNESS );
+ pm->configcr->wIndex = cpu_to_le16( pm->static_brightness );
+ pm->requires_update &= ~UPDATE_STATIC_BRIGHTNESS;
+ } else {
+ printk(KERN_ERR "powermate: unknown update required");
+ pm->requires_update = 0; /* fudge the bug */
+ return;
+ }
+
+/* printk("powermate: %04x %04x\n", pm->configcr->wValue, pm->configcr->wIndex); */
+
+ pm->configcr->bRequestType = 0x41; /* vendor request */
+ pm->configcr->bRequest = 0x01;
+ pm->configcr->wLength = 0;
+
+ usb_fill_control_urb(pm->config, pm->udev, usb_sndctrlpipe(pm->udev, 0),
+ (void *) pm->configcr, NULL, 0,
+ powermate_config_complete, pm);
+
+ if (usb_submit_urb(pm->config, GFP_ATOMIC))
+ printk(KERN_ERR "powermate: usb_submit_urb(config) failed");
+}
+
+/* Called when our asynchronous control message completes. We may need to issue another immediately */
+static void powermate_config_complete(struct urb *urb)
+{
+ struct powermate_device *pm = urb->context;
+ unsigned long flags;
+
+ if (urb->status)
+ printk(KERN_ERR "powermate: config urb returned %d\n", urb->status);
+
+ spin_lock_irqsave(&pm->lock, flags);
+ powermate_sync_state(pm);
+ spin_unlock_irqrestore(&pm->lock, flags);
+}
+
+/* Set the LED up as described and begin the sync with the hardware if required */
+static void powermate_pulse_led(struct powermate_device *pm, int static_brightness, int pulse_speed,
+ int pulse_table, int pulse_asleep, int pulse_awake)
+{
+ unsigned long flags;
+
+ if (pulse_speed < 0)
+ pulse_speed = 0;
+ if (pulse_table < 0)
+ pulse_table = 0;
+ if (pulse_speed > 510)
+ pulse_speed = 510;
+ if (pulse_table > 2)
+ pulse_table = 2;
+
+ pulse_asleep = !!pulse_asleep;
+ pulse_awake = !!pulse_awake;
+
+
+ spin_lock_irqsave(&pm->lock, flags);
+
+ /* mark state updates which are required */
+ if (static_brightness != pm->static_brightness) {
+ pm->static_brightness = static_brightness;
+ pm->requires_update |= UPDATE_STATIC_BRIGHTNESS;
+ }
+ if (pulse_asleep != pm->pulse_asleep) {
+ pm->pulse_asleep = pulse_asleep;
+ pm->requires_update |= (UPDATE_PULSE_ASLEEP | UPDATE_STATIC_BRIGHTNESS);
+ }
+ if (pulse_awake != pm->pulse_awake) {
+ pm->pulse_awake = pulse_awake;
+ pm->requires_update |= (UPDATE_PULSE_AWAKE | UPDATE_STATIC_BRIGHTNESS);
+ }
+ if (pulse_speed != pm->pulse_speed || pulse_table != pm->pulse_table) {
+ pm->pulse_speed = pulse_speed;
+ pm->pulse_table = pulse_table;
+ pm->requires_update |= UPDATE_PULSE_MODE;
+ }
+
+ powermate_sync_state(pm);
+
+ spin_unlock_irqrestore(&pm->lock, flags);
+}
+
+/* Callback from the Input layer when an event arrives from userspace to configure the LED */
+static int powermate_input_event(struct input_dev *dev, unsigned int type, unsigned int code, int _value)
+{
+ unsigned int command = (unsigned int)_value;
+ struct powermate_device *pm = input_get_drvdata(dev);
+
+ if (type == EV_MSC && code == MSC_PULSELED){
+ /*
+ bits 0- 7: 8 bits: LED brightness
+ bits 8-16: 9 bits: pulsing speed modifier (0 ... 510); 0-254 = slower, 255 = standard, 256-510 = faster.
+ bits 17-18: 2 bits: pulse table (0, 1, 2 valid)
+ bit 19: 1 bit : pulse whilst asleep?
+ bit 20: 1 bit : pulse constantly?
+ */
+ int static_brightness = command & 0xFF; // bits 0-7
+ int pulse_speed = (command >> 8) & 0x1FF; // bits 8-16
+ int pulse_table = (command >> 17) & 0x3; // bits 17-18
+ int pulse_asleep = (command >> 19) & 0x1; // bit 19
+ int pulse_awake = (command >> 20) & 0x1; // bit 20
+
+ powermate_pulse_led(pm, static_brightness, pulse_speed, pulse_table, pulse_asleep, pulse_awake);
+ }
+
+ return 0;
+}
+
+static int powermate_alloc_buffers(struct usb_device *udev, struct powermate_device *pm)
+{
+ pm->data = usb_alloc_coherent(udev, POWERMATE_PAYLOAD_SIZE_MAX,
+ GFP_ATOMIC, &pm->data_dma);
+ if (!pm->data)
+ return -1;
+
+ pm->configcr = kmalloc(sizeof(*(pm->configcr)), GFP_KERNEL);
+ if (!pm->configcr)
+ return -ENOMEM;
+
+ return 0;
+}
+
+static void powermate_free_buffers(struct usb_device *udev, struct powermate_device *pm)
+{
+ usb_free_coherent(udev, POWERMATE_PAYLOAD_SIZE_MAX,
+ pm->data, pm->data_dma);
+ kfree(pm->configcr);
+}
+
+/* Called whenever a USB device matching one in our supported devices table is connected */
+static int powermate_probe(struct usb_interface *intf, const struct usb_device_id *id)
+{
+ struct usb_device *udev = interface_to_usbdev (intf);
+ struct usb_host_interface *interface;
+ struct usb_endpoint_descriptor *endpoint;
+ struct powermate_device *pm;
+ struct input_dev *input_dev;
+ int pipe, maxp;
+ int error = -ENOMEM;
+
+ interface = intf->cur_altsetting;
+ endpoint = &interface->endpoint[0].desc;
+ if (!usb_endpoint_is_int_in(endpoint))
+ return -EIO;
+
+ usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
+ 0x0a, USB_TYPE_CLASS | USB_RECIP_INTERFACE,
+ 0, interface->desc.bInterfaceNumber, NULL, 0,
+ USB_CTRL_SET_TIMEOUT);
+
+ pm = kzalloc(sizeof(struct powermate_device), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!pm || !input_dev)
+ goto fail1;
+
+ if (powermate_alloc_buffers(udev, pm))
+ goto fail2;
+
+ pm->irq = usb_alloc_urb(0, GFP_KERNEL);
+ if (!pm->irq)
+ goto fail2;
+
+ pm->config = usb_alloc_urb(0, GFP_KERNEL);
+ if (!pm->config)
+ goto fail3;
+
+ pm->udev = udev;
+ pm->input = input_dev;
+
+ usb_make_path(udev, pm->phys, sizeof(pm->phys));
+ strlcat(pm->phys, "/input0", sizeof(pm->phys));
+
+ spin_lock_init(&pm->lock);
+
+ switch (le16_to_cpu(udev->descriptor.idProduct)) {
+ case POWERMATE_PRODUCT_NEW:
+ input_dev->name = pm_name_powermate;
+ break;
+ case POWERMATE_PRODUCT_OLD:
+ input_dev->name = pm_name_soundknob;
+ break;
+ default:
+ input_dev->name = pm_name_soundknob;
+ printk(KERN_WARNING "powermate: unknown product id %04x\n",
+ le16_to_cpu(udev->descriptor.idProduct));
+ }
+
+ input_dev->phys = pm->phys;
+ usb_to_input_id(udev, &input_dev->id);
+ input_dev->dev.parent = &intf->dev;
+
+ input_set_drvdata(input_dev, pm);
+
+ input_dev->event = powermate_input_event;
+
+ input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL) |
+ BIT_MASK(EV_MSC);
+ input_dev->keybit[BIT_WORD(BTN_0)] = BIT_MASK(BTN_0);
+ input_dev->relbit[BIT_WORD(REL_DIAL)] = BIT_MASK(REL_DIAL);
+ input_dev->mscbit[BIT_WORD(MSC_PULSELED)] = BIT_MASK(MSC_PULSELED);
+
+ /* get a handle to the interrupt data pipe */
+ pipe = usb_rcvintpipe(udev, endpoint->bEndpointAddress);
+ maxp = usb_maxpacket(udev, pipe, usb_pipeout(pipe));
+
+ if (maxp < POWERMATE_PAYLOAD_SIZE_MIN || maxp > POWERMATE_PAYLOAD_SIZE_MAX) {
+ printk(KERN_WARNING "powermate: Expected payload of %d--%d bytes, found %d bytes!\n",
+ POWERMATE_PAYLOAD_SIZE_MIN, POWERMATE_PAYLOAD_SIZE_MAX, maxp);
+ maxp = POWERMATE_PAYLOAD_SIZE_MAX;
+ }
+
+ usb_fill_int_urb(pm->irq, udev, pipe, pm->data,
+ maxp, powermate_irq,
+ pm, endpoint->bInterval);
+ pm->irq->transfer_dma = pm->data_dma;
+ pm->irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
+
+ /* register our interrupt URB with the USB system */
+ if (usb_submit_urb(pm->irq, GFP_KERNEL)) {
+ error = -EIO;
+ goto fail4;
+ }
+
+ error = input_register_device(pm->input);
+ if (error)
+ goto fail5;
+
+
+ /* force an update of everything */
+ pm->requires_update = UPDATE_PULSE_ASLEEP | UPDATE_PULSE_AWAKE | UPDATE_PULSE_MODE | UPDATE_STATIC_BRIGHTNESS;
+ powermate_pulse_led(pm, 0x80, 255, 0, 1, 0); // set default pulse parameters
+
+ usb_set_intfdata(intf, pm);
+ return 0;
+
+ fail5: usb_kill_urb(pm->irq);
+ fail4: usb_free_urb(pm->config);
+ fail3: usb_free_urb(pm->irq);
+ fail2: powermate_free_buffers(udev, pm);
+ fail1: input_free_device(input_dev);
+ kfree(pm);
+ return error;
+}
+
+/* Called when a USB device we've accepted ownership of is removed */
+static void powermate_disconnect(struct usb_interface *intf)
+{
+ struct powermate_device *pm = usb_get_intfdata (intf);
+
+ usb_set_intfdata(intf, NULL);
+ if (pm) {
+ pm->requires_update = 0;
+ usb_kill_urb(pm->irq);
+ input_unregister_device(pm->input);
+ usb_free_urb(pm->irq);
+ usb_free_urb(pm->config);
+ powermate_free_buffers(interface_to_usbdev(intf), pm);
+
+ kfree(pm);
+ }
+}
+
+static struct usb_device_id powermate_devices [] = {
+ { USB_DEVICE(POWERMATE_VENDOR, POWERMATE_PRODUCT_NEW) },
+ { USB_DEVICE(POWERMATE_VENDOR, POWERMATE_PRODUCT_OLD) },
+ { USB_DEVICE(CONTOUR_VENDOR, CONTOUR_JOG) },
+ { } /* Terminating entry */
+};
+
+MODULE_DEVICE_TABLE (usb, powermate_devices);
+
+static struct usb_driver powermate_driver = {
+ .name = "powermate",
+ .probe = powermate_probe,
+ .disconnect = powermate_disconnect,
+ .id_table = powermate_devices,
+};
+
+static int __init powermate_init(void)
+{
+ return usb_register(&powermate_driver);
+}
+
+static void __exit powermate_cleanup(void)
+{
+ usb_deregister(&powermate_driver);
+}
+
+module_init(powermate_init);
+module_exit(powermate_cleanup);
+
+MODULE_AUTHOR( "William R Sowerbutts" );
+MODULE_DESCRIPTION( "Griffin Technology, Inc PowerMate driver" );
+MODULE_LICENSE("GPL");
diff --git a/drivers/input/misc/pwm-beeper.c b/drivers/input/misc/pwm-beeper.c
new file mode 100644
index 0000000..57c294f
--- /dev/null
+++ b/drivers/input/misc/pwm-beeper.c
@@ -0,0 +1,199 @@
+/*
+ * Copyright (C) 2010, Lars-Peter Clausen <lars@metafoo.de>
+ * PWM beeper driver
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+#include <linux/input.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+#include <linux/pwm.h>
+#include <linux/slab.h>
+
+struct pwm_beeper {
+ struct input_dev *input;
+ struct pwm_device *pwm;
+ unsigned long period;
+};
+
+#define HZ_TO_NANOSECONDS(x) (1000000000UL/(x))
+
+static int pwm_beeper_event(struct input_dev *input,
+ unsigned int type, unsigned int code, int value)
+{
+ int ret = 0;
+ struct pwm_beeper *beeper = input_get_drvdata(input);
+ unsigned long period;
+
+ if (type != EV_SND || value < 0)
+ return -EINVAL;
+
+ switch (code) {
+ case SND_BELL:
+ value = value ? 1000 : 0;
+ break;
+ case SND_TONE:
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ if (value == 0) {
+ pwm_config(beeper->pwm, 0, 0);
+ pwm_disable(beeper->pwm);
+ } else {
+ period = HZ_TO_NANOSECONDS(value);
+ ret = pwm_config(beeper->pwm, period / 2, period);
+ if (ret)
+ return ret;
+ ret = pwm_enable(beeper->pwm);
+ if (ret)
+ return ret;
+ beeper->period = period;
+ }
+
+ return 0;
+}
+
+static int __devinit pwm_beeper_probe(struct platform_device *pdev)
+{
+ unsigned long pwm_id = (unsigned long)pdev->dev.platform_data;
+ struct pwm_beeper *beeper;
+ int error;
+
+ beeper = kzalloc(sizeof(*beeper), GFP_KERNEL);
+ if (!beeper)
+ return -ENOMEM;
+
+ beeper->pwm = pwm_request(pwm_id, "pwm beeper");
+
+ if (IS_ERR(beeper->pwm)) {
+ error = PTR_ERR(beeper->pwm);
+ dev_err(&pdev->dev, "Failed to request pwm device: %d\n", error);
+ goto err_free;
+ }
+
+ beeper->input = input_allocate_device();
+ if (!beeper->input) {
+ dev_err(&pdev->dev, "Failed to allocate input device\n");
+ error = -ENOMEM;
+ goto err_pwm_free;
+ }
+ beeper->input->dev.parent = &pdev->dev;
+
+ beeper->input->name = "pwm-beeper";
+ beeper->input->phys = "pwm/input0";
+ beeper->input->id.bustype = BUS_HOST;
+ beeper->input->id.vendor = 0x001f;
+ beeper->input->id.product = 0x0001;
+ beeper->input->id.version = 0x0100;
+
+ beeper->input->evbit[0] = BIT(EV_SND);
+ beeper->input->sndbit[0] = BIT(SND_TONE) | BIT(SND_BELL);
+
+ beeper->input->event = pwm_beeper_event;
+
+ input_set_drvdata(beeper->input, beeper);
+
+ error = input_register_device(beeper->input);
+ if (error) {
+ dev_err(&pdev->dev, "Failed to register input device: %d\n", error);
+ goto err_input_free;
+ }
+
+ platform_set_drvdata(pdev, beeper);
+
+ return 0;
+
+err_input_free:
+ input_free_device(beeper->input);
+err_pwm_free:
+ pwm_free(beeper->pwm);
+err_free:
+ kfree(beeper);
+
+ return error;
+}
+
+static int __devexit pwm_beeper_remove(struct platform_device *pdev)
+{
+ struct pwm_beeper *beeper = platform_get_drvdata(pdev);
+
+ platform_set_drvdata(pdev, NULL);
+ input_unregister_device(beeper->input);
+
+ pwm_disable(beeper->pwm);
+ pwm_free(beeper->pwm);
+
+ kfree(beeper);
+
+ return 0;
+}
+
+#ifdef CONFIG_PM
+static int pwm_beeper_suspend(struct device *dev)
+{
+ struct pwm_beeper *beeper = dev_get_drvdata(dev);
+
+ if (beeper->period)
+ pwm_disable(beeper->pwm);
+
+ return 0;
+}
+
+static int pwm_beeper_resume(struct device *dev)
+{
+ struct pwm_beeper *beeper = dev_get_drvdata(dev);
+
+ if (beeper->period) {
+ pwm_config(beeper->pwm, beeper->period / 2, beeper->period);
+ pwm_enable(beeper->pwm);
+ }
+
+ return 0;
+}
+
+static SIMPLE_DEV_PM_OPS(pwm_beeper_pm_ops,
+ pwm_beeper_suspend, pwm_beeper_resume);
+
+#define PWM_BEEPER_PM_OPS (&pwm_beeper_pm_ops)
+#else
+#define PWM_BEEPER_PM_OPS NULL
+#endif
+
+static struct platform_driver pwm_beeper_driver = {
+ .probe = pwm_beeper_probe,
+ .remove = __devexit_p(pwm_beeper_remove),
+ .driver = {
+ .name = "pwm-beeper",
+ .owner = THIS_MODULE,
+ .pm = PWM_BEEPER_PM_OPS,
+ },
+};
+
+static int __init pwm_beeper_init(void)
+{
+ return platform_driver_register(&pwm_beeper_driver);
+}
+module_init(pwm_beeper_init);
+
+static void __exit pwm_beeper_exit(void)
+{
+ platform_driver_unregister(&pwm_beeper_driver);
+}
+module_exit(pwm_beeper_exit);
+
+MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
+MODULE_DESCRIPTION("PWM beeper driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:pwm-beeper");
diff --git a/drivers/input/misc/rb532_button.c b/drivers/input/misc/rb532_button.c
new file mode 100644
index 0000000..e2c7f62
--- /dev/null
+++ b/drivers/input/misc/rb532_button.c
@@ -0,0 +1,120 @@
+/*
+ * Support for the S1 button on Routerboard 532
+ *
+ * Copyright (C) 2009 Phil Sutter <n0-1@freewrt.org>
+ */
+
+#include <linux/input-polldev.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+
+#include <asm/mach-rc32434/gpio.h>
+#include <asm/mach-rc32434/rb.h>
+
+#define DRV_NAME "rb532-button"
+
+#define RB532_BTN_RATE 100 /* msec */
+#define RB532_BTN_KSYM BTN_0
+
+/* The S1 button state is provided by GPIO pin 1. But as this
+ * pin is also used for uart input as alternate function, the
+ * operational modes must be switched first:
+ * 1) disable uart using set_latch_u5()
+ * 2) turn off alternate function implicitly through
+ * gpio_direction_input()
+ * 3) read the GPIO's current value
+ * 4) undo step 2 by enabling alternate function (in this
+ * mode the GPIO direction is fixed, so no change needed)
+ * 5) turn on uart again
+ * The GPIO value occurs to be inverted, so pin high means
+ * button is not pressed.
+ */
+static bool rb532_button_pressed(void)
+{
+ int val;
+
+ set_latch_u5(0, LO_FOFF);
+ gpio_direction_input(GPIO_BTN_S1);
+
+ val = gpio_get_value(GPIO_BTN_S1);
+
+ rb532_gpio_set_func(GPIO_BTN_S1);
+ set_latch_u5(LO_FOFF, 0);
+
+ return !val;
+}
+
+static void rb532_button_poll(struct input_polled_dev *poll_dev)
+{
+ input_report_key(poll_dev->input, RB532_BTN_KSYM,
+ rb532_button_pressed());
+ input_sync(poll_dev->input);
+}
+
+static int __devinit rb532_button_probe(struct platform_device *pdev)
+{
+ struct input_polled_dev *poll_dev;
+ int error;
+
+ poll_dev = input_allocate_polled_device();
+ if (!poll_dev)
+ return -ENOMEM;
+
+ poll_dev->poll = rb532_button_poll;
+ poll_dev->poll_interval = RB532_BTN_RATE;
+
+ poll_dev->input->name = "rb532 button";
+ poll_dev->input->phys = "rb532/button0";
+ poll_dev->input->id.bustype = BUS_HOST;
+ poll_dev->input->dev.parent = &pdev->dev;
+
+ dev_set_drvdata(&pdev->dev, poll_dev);
+
+ input_set_capability(poll_dev->input, EV_KEY, RB532_BTN_KSYM);
+
+ error = input_register_polled_device(poll_dev);
+ if (error) {
+ input_free_polled_device(poll_dev);
+ return error;
+ }
+
+ return 0;
+}
+
+static int __devexit rb532_button_remove(struct platform_device *pdev)
+{
+ struct input_polled_dev *poll_dev = dev_get_drvdata(&pdev->dev);
+
+ input_unregister_polled_device(poll_dev);
+ input_free_polled_device(poll_dev);
+ dev_set_drvdata(&pdev->dev, NULL);
+
+ return 0;
+}
+
+static struct platform_driver rb532_button_driver = {
+ .probe = rb532_button_probe,
+ .remove = __devexit_p(rb532_button_remove),
+ .driver = {
+ .name = DRV_NAME,
+ .owner = THIS_MODULE,
+ },
+};
+
+static int __init rb532_button_init(void)
+{
+ return platform_driver_register(&rb532_button_driver);
+}
+
+static void __exit rb532_button_exit(void)
+{
+ platform_driver_unregister(&rb532_button_driver);
+}
+
+module_init(rb532_button_init);
+module_exit(rb532_button_exit);
+
+MODULE_AUTHOR("Phil Sutter <n0-1@freewrt.org>");
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("Support for S1 button on Routerboard 532");
+MODULE_ALIAS("platform:" DRV_NAME);
diff --git a/drivers/input/misc/rotary_encoder.c b/drivers/input/misc/rotary_encoder.c
new file mode 100644
index 0000000..2be2169
--- /dev/null
+++ b/drivers/input/misc/rotary_encoder.c
@@ -0,0 +1,304 @@
+/*
+ * rotary_encoder.c
+ *
+ * (c) 2009 Daniel Mack <daniel@caiaq.de>
+ * Copyright (C) 2011 Johan Hovold <jhovold@gmail.com>
+ *
+ * state machine code inspired by code from Tim Ruetz
+ *
+ * A generic driver for rotary encoders connected to GPIO lines.
+ * See file:Documentation/input/rotary-encoder.txt for more information
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/input.h>
+#include <linux/device.h>
+#include <linux/platform_device.h>
+#include <linux/gpio.h>
+#include <linux/rotary_encoder.h>
+#include <linux/slab.h>
+
+#define DRV_NAME "rotary-encoder"
+
+struct rotary_encoder {
+ struct input_dev *input;
+ struct rotary_encoder_platform_data *pdata;
+
+ unsigned int axis;
+ unsigned int pos;
+
+ unsigned int irq_a;
+ unsigned int irq_b;
+
+ bool armed;
+ unsigned char dir; /* 0 - clockwise, 1 - CCW */
+
+ char last_stable;
+};
+
+static int rotary_encoder_get_state(struct rotary_encoder_platform_data *pdata)
+{
+ int a = !!gpio_get_value(pdata->gpio_a);
+ int b = !!gpio_get_value(pdata->gpio_b);
+
+ a ^= pdata->inverted_a;
+ b ^= pdata->inverted_b;
+
+ return ((a << 1) | b);
+}
+
+static void rotary_encoder_report_event(struct rotary_encoder *encoder)
+{
+ struct rotary_encoder_platform_data *pdata = encoder->pdata;
+
+ if (pdata->relative_axis) {
+ input_report_rel(encoder->input,
+ pdata->axis, encoder->dir ? -1 : 1);
+ } else {
+ unsigned int pos = encoder->pos;
+
+ if (encoder->dir) {
+ /* turning counter-clockwise */
+ if (pdata->rollover)
+ pos += pdata->steps;
+ if (pos)
+ pos--;
+ } else {
+ /* turning clockwise */
+ if (pdata->rollover || pos < pdata->steps)
+ pos++;
+ }
+
+ if (pdata->rollover)
+ pos %= pdata->steps;
+
+ encoder->pos = pos;
+ input_report_abs(encoder->input, pdata->axis, encoder->pos);
+ }
+
+ input_sync(encoder->input);
+}
+
+static irqreturn_t rotary_encoder_irq(int irq, void *dev_id)
+{
+ struct rotary_encoder *encoder = dev_id;
+ int state;
+
+ state = rotary_encoder_get_state(encoder->pdata);
+
+ switch (state) {
+ case 0x0:
+ if (encoder->armed) {
+ rotary_encoder_report_event(encoder);
+ encoder->armed = false;
+ }
+ break;
+
+ case 0x1:
+ case 0x2:
+ if (encoder->armed)
+ encoder->dir = state - 1;
+ break;
+
+ case 0x3:
+ encoder->armed = true;
+ break;
+ }
+
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t rotary_encoder_half_period_irq(int irq, void *dev_id)
+{
+ struct rotary_encoder *encoder = dev_id;
+ int state;
+
+ state = rotary_encoder_get_state(encoder->pdata);
+
+ switch (state) {
+ case 0x00:
+ case 0x03:
+ if (state != encoder->last_stable) {
+ rotary_encoder_report_event(encoder);
+ encoder->last_stable = state;
+ }
+ break;
+
+ case 0x01:
+ case 0x02:
+ encoder->dir = (encoder->last_stable + state) & 0x01;
+ break;
+ }
+
+ return IRQ_HANDLED;
+}
+
+static int __devinit rotary_encoder_probe(struct platform_device *pdev)
+{
+ struct rotary_encoder_platform_data *pdata = pdev->dev.platform_data;
+ struct rotary_encoder *encoder;
+ struct input_dev *input;
+ irq_handler_t handler;
+ int err;
+
+ if (!pdata) {
+ dev_err(&pdev->dev, "missing platform data\n");
+ return -ENOENT;
+ }
+
+ encoder = kzalloc(sizeof(struct rotary_encoder), GFP_KERNEL);
+ input = input_allocate_device();
+ if (!encoder || !input) {
+ dev_err(&pdev->dev, "failed to allocate memory for device\n");
+ err = -ENOMEM;
+ goto exit_free_mem;
+ }
+
+ encoder->input = input;
+ encoder->pdata = pdata;
+ encoder->irq_a = gpio_to_irq(pdata->gpio_a);
+ encoder->irq_b = gpio_to_irq(pdata->gpio_b);
+
+ /* create and register the input driver */
+ input->name = pdev->name;
+ input->id.bustype = BUS_HOST;
+ input->dev.parent = &pdev->dev;
+
+ if (pdata->relative_axis) {
+ input->evbit[0] = BIT_MASK(EV_REL);
+ input->relbit[0] = BIT_MASK(pdata->axis);
+ } else {
+ input->evbit[0] = BIT_MASK(EV_ABS);
+ input_set_abs_params(encoder->input,
+ pdata->axis, 0, pdata->steps, 0, 1);
+ }
+
+ err = input_register_device(input);
+ if (err) {
+ dev_err(&pdev->dev, "failed to register input device\n");
+ goto exit_free_mem;
+ }
+
+ /* request the GPIOs */
+ err = gpio_request(pdata->gpio_a, DRV_NAME);
+ if (err) {
+ dev_err(&pdev->dev, "unable to request GPIO %d\n",
+ pdata->gpio_a);
+ goto exit_unregister_input;
+ }
+
+ err = gpio_direction_input(pdata->gpio_a);
+ if (err) {
+ dev_err(&pdev->dev, "unable to set GPIO %d for input\n",
+ pdata->gpio_a);
+ goto exit_unregister_input;
+ }
+
+ err = gpio_request(pdata->gpio_b, DRV_NAME);
+ if (err) {
+ dev_err(&pdev->dev, "unable to request GPIO %d\n",
+ pdata->gpio_b);
+ goto exit_free_gpio_a;
+ }
+
+ err = gpio_direction_input(pdata->gpio_b);
+ if (err) {
+ dev_err(&pdev->dev, "unable to set GPIO %d for input\n",
+ pdata->gpio_b);
+ goto exit_free_gpio_a;
+ }
+
+ /* request the IRQs */
+ if (pdata->half_period) {
+ handler = &rotary_encoder_half_period_irq;
+ encoder->last_stable = rotary_encoder_get_state(pdata);
+ } else {
+ handler = &rotary_encoder_irq;
+ }
+
+ err = request_irq(encoder->irq_a, handler,
+ IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
+ DRV_NAME, encoder);
+ if (err) {
+ dev_err(&pdev->dev, "unable to request IRQ %d\n",
+ encoder->irq_a);
+ goto exit_free_gpio_b;
+ }
+
+ err = request_irq(encoder->irq_b, handler,
+ IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
+ DRV_NAME, encoder);
+ if (err) {
+ dev_err(&pdev->dev, "unable to request IRQ %d\n",
+ encoder->irq_b);
+ goto exit_free_irq_a;
+ }
+
+ platform_set_drvdata(pdev, encoder);
+
+ return 0;
+
+exit_free_irq_a:
+ free_irq(encoder->irq_a, encoder);
+exit_free_gpio_b:
+ gpio_free(pdata->gpio_b);
+exit_free_gpio_a:
+ gpio_free(pdata->gpio_a);
+exit_unregister_input:
+ input_unregister_device(input);
+ input = NULL; /* so we don't try to free it */
+exit_free_mem:
+ input_free_device(input);
+ kfree(encoder);
+ return err;
+}
+
+static int __devexit rotary_encoder_remove(struct platform_device *pdev)
+{
+ struct rotary_encoder *encoder = platform_get_drvdata(pdev);
+ struct rotary_encoder_platform_data *pdata = pdev->dev.platform_data;
+
+ free_irq(encoder->irq_a, encoder);
+ free_irq(encoder->irq_b, encoder);
+ gpio_free(pdata->gpio_a);
+ gpio_free(pdata->gpio_b);
+ input_unregister_device(encoder->input);
+ platform_set_drvdata(pdev, NULL);
+ kfree(encoder);
+
+ return 0;
+}
+
+static struct platform_driver rotary_encoder_driver = {
+ .probe = rotary_encoder_probe,
+ .remove = __devexit_p(rotary_encoder_remove),
+ .driver = {
+ .name = DRV_NAME,
+ .owner = THIS_MODULE,
+ }
+};
+
+static int __init rotary_encoder_init(void)
+{
+ return platform_driver_register(&rotary_encoder_driver);
+}
+
+static void __exit rotary_encoder_exit(void)
+{
+ platform_driver_unregister(&rotary_encoder_driver);
+}
+
+module_init(rotary_encoder_init);
+module_exit(rotary_encoder_exit);
+
+MODULE_ALIAS("platform:" DRV_NAME);
+MODULE_DESCRIPTION("GPIO rotary encoder driver");
+MODULE_AUTHOR("Daniel Mack <daniel@caiaq.de>, Johan Hovold");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/input/misc/sgi_btns.c b/drivers/input/misc/sgi_btns.c
new file mode 100644
index 0000000..1a80c0d
--- /dev/null
+++ b/drivers/input/misc/sgi_btns.c
@@ -0,0 +1,180 @@
+/*
+ * SGI Volume Button interface driver
+ *
+ * Copyright (C) 2008 Thomas Bogendoerfer <tsbogend@alpha.franken.de>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+#include <linux/init.h>
+#include <linux/input-polldev.h>
+#include <linux/ioport.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+
+#ifdef CONFIG_SGI_IP22
+#include <asm/sgi/ioc.h>
+
+static inline u8 button_status(void)
+{
+ u8 status;
+
+ status = readb(&sgioc->panel) ^ 0xa0;
+ return ((status & 0x80) >> 6) | ((status & 0x20) >> 5);
+}
+#endif
+
+#ifdef CONFIG_SGI_IP32
+#include <asm/ip32/mace.h>
+
+static inline u8 button_status(void)
+{
+ u64 status;
+
+ status = readq(&mace->perif.audio.control);
+ writeq(status & ~(3U << 23), &mace->perif.audio.control);
+
+ return (status >> 23) & 3;
+}
+#endif
+
+#define BUTTONS_POLL_INTERVAL 30 /* msec */
+#define BUTTONS_COUNT_THRESHOLD 3
+
+static const unsigned short sgi_map[] = {
+ KEY_VOLUMEDOWN,
+ KEY_VOLUMEUP
+};
+
+struct buttons_dev {
+ struct input_polled_dev *poll_dev;
+ unsigned short keymap[ARRAY_SIZE(sgi_map)];
+ int count[ARRAY_SIZE(sgi_map)];
+};
+
+static void handle_buttons(struct input_polled_dev *dev)
+{
+ struct buttons_dev *bdev = dev->private;
+ struct input_dev *input = dev->input;
+ u8 status;
+ int i;
+
+ status = button_status();
+
+ for (i = 0; i < ARRAY_SIZE(bdev->keymap); i++) {
+ if (status & (1U << i)) {
+ if (++bdev->count[i] == BUTTONS_COUNT_THRESHOLD) {
+ input_event(input, EV_MSC, MSC_SCAN, i);
+ input_report_key(input, bdev->keymap[i], 1);
+ input_sync(input);
+ }
+ } else {
+ if (bdev->count[i] >= BUTTONS_COUNT_THRESHOLD) {
+ input_event(input, EV_MSC, MSC_SCAN, i);
+ input_report_key(input, bdev->keymap[i], 0);
+ input_sync(input);
+ }
+ bdev->count[i] = 0;
+ }
+ }
+}
+
+static int __devinit sgi_buttons_probe(struct platform_device *pdev)
+{
+ struct buttons_dev *bdev;
+ struct input_polled_dev *poll_dev;
+ struct input_dev *input;
+ int error, i;
+
+ bdev = kzalloc(sizeof(struct buttons_dev), GFP_KERNEL);
+ poll_dev = input_allocate_polled_device();
+ if (!bdev || !poll_dev) {
+ error = -ENOMEM;
+ goto err_free_mem;
+ }
+
+ memcpy(bdev->keymap, sgi_map, sizeof(bdev->keymap));
+
+ poll_dev->private = bdev;
+ poll_dev->poll = handle_buttons;
+ poll_dev->poll_interval = BUTTONS_POLL_INTERVAL;
+
+ input = poll_dev->input;
+ input->name = "SGI buttons";
+ input->phys = "sgi/input0";
+ input->id.bustype = BUS_HOST;
+ input->dev.parent = &pdev->dev;
+
+ input->keycode = bdev->keymap;
+ input->keycodemax = ARRAY_SIZE(bdev->keymap);
+ input->keycodesize = sizeof(unsigned short);
+
+ input_set_capability(input, EV_MSC, MSC_SCAN);
+ __set_bit(EV_KEY, input->evbit);
+ for (i = 0; i < ARRAY_SIZE(sgi_map); i++)
+ __set_bit(bdev->keymap[i], input->keybit);
+ __clear_bit(KEY_RESERVED, input->keybit);
+
+ bdev->poll_dev = poll_dev;
+ dev_set_drvdata(&pdev->dev, bdev);
+
+ error = input_register_polled_device(poll_dev);
+ if (error)
+ goto err_free_mem;
+
+ return 0;
+
+ err_free_mem:
+ input_free_polled_device(poll_dev);
+ kfree(bdev);
+ dev_set_drvdata(&pdev->dev, NULL);
+ return error;
+}
+
+static int __devexit sgi_buttons_remove(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct buttons_dev *bdev = dev_get_drvdata(dev);
+
+ input_unregister_polled_device(bdev->poll_dev);
+ input_free_polled_device(bdev->poll_dev);
+ kfree(bdev);
+ dev_set_drvdata(dev, NULL);
+
+ return 0;
+}
+
+static struct platform_driver sgi_buttons_driver = {
+ .probe = sgi_buttons_probe,
+ .remove = __devexit_p(sgi_buttons_remove),
+ .driver = {
+ .name = "sgibtns",
+ .owner = THIS_MODULE,
+ },
+};
+
+static int __init sgi_buttons_init(void)
+{
+ return platform_driver_register(&sgi_buttons_driver);
+}
+
+static void __exit sgi_buttons_exit(void)
+{
+ platform_driver_unregister(&sgi_buttons_driver);
+}
+
+MODULE_LICENSE("GPL");
+module_init(sgi_buttons_init);
+module_exit(sgi_buttons_exit);
diff --git a/drivers/input/misc/sparcspkr.c b/drivers/input/misc/sparcspkr.c
new file mode 100644
index 0000000..0122f53
--- /dev/null
+++ b/drivers/input/misc/sparcspkr.c
@@ -0,0 +1,372 @@
+/*
+ * Driver for PC-speaker like devices found on various Sparc systems.
+ *
+ * Copyright (c) 2002 Vojtech Pavlik
+ * Copyright (c) 2002, 2006, 2008 David S. Miller (davem@davemloft.net)
+ */
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/input.h>
+#include <linux/of_device.h>
+#include <linux/slab.h>
+
+#include <asm/io.h>
+
+MODULE_AUTHOR("David S. Miller <davem@davemloft.net>");
+MODULE_DESCRIPTION("Sparc Speaker beeper driver");
+MODULE_LICENSE("GPL");
+
+struct grover_beep_info {
+ void __iomem *freq_regs;
+ void __iomem *enable_reg;
+};
+
+struct bbc_beep_info {
+ u32 clock_freq;
+ void __iomem *regs;
+};
+
+struct sparcspkr_state {
+ const char *name;
+ int (*event)(struct input_dev *dev, unsigned int type, unsigned int code, int value);
+ spinlock_t lock;
+ struct input_dev *input_dev;
+ union {
+ struct grover_beep_info grover;
+ struct bbc_beep_info bbc;
+ } u;
+};
+
+static u32 bbc_count_to_reg(struct bbc_beep_info *info, unsigned int count)
+{
+ u32 val, clock_freq = info->clock_freq;
+ int i;
+
+ if (!count)
+ return 0;
+
+ if (count <= clock_freq >> 20)
+ return 1 << 18;
+
+ if (count >= clock_freq >> 12)
+ return 1 << 10;
+
+ val = 1 << 18;
+ for (i = 19; i >= 11; i--) {
+ val >>= 1;
+ if (count <= clock_freq >> i)
+ break;
+ }
+
+ return val;
+}
+
+static int bbc_spkr_event(struct input_dev *dev, unsigned int type, unsigned int code, int value)
+{
+ struct sparcspkr_state *state = dev_get_drvdata(dev->dev.parent);
+ struct bbc_beep_info *info = &state->u.bbc;
+ unsigned int count = 0;
+ unsigned long flags;
+
+ if (type != EV_SND)
+ return -1;
+
+ switch (code) {
+ case SND_BELL: if (value) value = 1000;
+ case SND_TONE: break;
+ default: return -1;
+ }
+
+ if (value > 20 && value < 32767)
+ count = 1193182 / value;
+
+ count = bbc_count_to_reg(info, count);
+
+ spin_lock_irqsave(&state->lock, flags);
+
+ if (count) {
+ outb(0x01, info->regs + 0);
+ outb(0x00, info->regs + 2);
+ outb((count >> 16) & 0xff, info->regs + 3);
+ outb((count >> 8) & 0xff, info->regs + 4);
+ outb(0x00, info->regs + 5);
+ } else {
+ outb(0x00, info->regs + 0);
+ }
+
+ spin_unlock_irqrestore(&state->lock, flags);
+
+ return 0;
+}
+
+static int grover_spkr_event(struct input_dev *dev, unsigned int type, unsigned int code, int value)
+{
+ struct sparcspkr_state *state = dev_get_drvdata(dev->dev.parent);
+ struct grover_beep_info *info = &state->u.grover;
+ unsigned int count = 0;
+ unsigned long flags;
+
+ if (type != EV_SND)
+ return -1;
+
+ switch (code) {
+ case SND_BELL: if (value) value = 1000;
+ case SND_TONE: break;
+ default: return -1;
+ }
+
+ if (value > 20 && value < 32767)
+ count = 1193182 / value;
+
+ spin_lock_irqsave(&state->lock, flags);
+
+ if (count) {
+ /* enable counter 2 */
+ outb(inb(info->enable_reg) | 3, info->enable_reg);
+ /* set command for counter 2, 2 byte write */
+ outb(0xB6, info->freq_regs + 1);
+ /* select desired HZ */
+ outb(count & 0xff, info->freq_regs + 0);
+ outb((count >> 8) & 0xff, info->freq_regs + 0);
+ } else {
+ /* disable counter 2 */
+ outb(inb_p(info->enable_reg) & 0xFC, info->enable_reg);
+ }
+
+ spin_unlock_irqrestore(&state->lock, flags);
+
+ return 0;
+}
+
+static int __devinit sparcspkr_probe(struct device *dev)
+{
+ struct sparcspkr_state *state = dev_get_drvdata(dev);
+ struct input_dev *input_dev;
+ int error;
+
+ input_dev = input_allocate_device();
+ if (!input_dev)
+ return -ENOMEM;
+
+ input_dev->name = state->name;
+ input_dev->phys = "sparc/input0";
+ input_dev->id.bustype = BUS_ISA;
+ input_dev->id.vendor = 0x001f;
+ input_dev->id.product = 0x0001;
+ input_dev->id.version = 0x0100;
+ input_dev->dev.parent = dev;
+
+ input_dev->evbit[0] = BIT_MASK(EV_SND);
+ input_dev->sndbit[0] = BIT_MASK(SND_BELL) | BIT_MASK(SND_TONE);
+
+ input_dev->event = state->event;
+
+ error = input_register_device(input_dev);
+ if (error) {
+ input_free_device(input_dev);
+ return error;
+ }
+
+ state->input_dev = input_dev;
+
+ return 0;
+}
+
+static void sparcspkr_shutdown(struct platform_device *dev)
+{
+ struct sparcspkr_state *state = dev_get_drvdata(&dev->dev);
+ struct input_dev *input_dev = state->input_dev;
+
+ /* turn off the speaker */
+ state->event(input_dev, EV_SND, SND_BELL, 0);
+}
+
+static int __devinit bbc_beep_probe(struct platform_device *op)
+{
+ struct sparcspkr_state *state;
+ struct bbc_beep_info *info;
+ struct device_node *dp;
+ int err = -ENOMEM;
+
+ state = kzalloc(sizeof(*state), GFP_KERNEL);
+ if (!state)
+ goto out_err;
+
+ state->name = "Sparc BBC Speaker";
+ state->event = bbc_spkr_event;
+ spin_lock_init(&state->lock);
+
+ dp = of_find_node_by_path("/");
+ err = -ENODEV;
+ if (!dp)
+ goto out_free;
+
+ info = &state->u.bbc;
+ info->clock_freq = of_getintprop_default(dp, "clock-frequency", 0);
+ if (!info->clock_freq)
+ goto out_free;
+
+ info->regs = of_ioremap(&op->resource[0], 0, 6, "bbc beep");
+ if (!info->regs)
+ goto out_free;
+
+ dev_set_drvdata(&op->dev, state);
+
+ err = sparcspkr_probe(&op->dev);
+ if (err)
+ goto out_clear_drvdata;
+
+ return 0;
+
+out_clear_drvdata:
+ dev_set_drvdata(&op->dev, NULL);
+ of_iounmap(&op->resource[0], info->regs, 6);
+
+out_free:
+ kfree(state);
+out_err:
+ return err;
+}
+
+static int __devexit bbc_remove(struct platform_device *op)
+{
+ struct sparcspkr_state *state = dev_get_drvdata(&op->dev);
+ struct input_dev *input_dev = state->input_dev;
+ struct bbc_beep_info *info = &state->u.bbc;
+
+ /* turn off the speaker */
+ state->event(input_dev, EV_SND, SND_BELL, 0);
+
+ input_unregister_device(input_dev);
+
+ of_iounmap(&op->resource[0], info->regs, 6);
+
+ dev_set_drvdata(&op->dev, NULL);
+ kfree(state);
+
+ return 0;
+}
+
+static const struct of_device_id bbc_beep_match[] = {
+ {
+ .name = "beep",
+ .compatible = "SUNW,bbc-beep",
+ },
+ {},
+};
+
+static struct platform_driver bbc_beep_driver = {
+ .driver = {
+ .name = "bbcbeep",
+ .owner = THIS_MODULE,
+ .of_match_table = bbc_beep_match,
+ },
+ .probe = bbc_beep_probe,
+ .remove = __devexit_p(bbc_remove),
+ .shutdown = sparcspkr_shutdown,
+};
+
+static int __devinit grover_beep_probe(struct platform_device *op)
+{
+ struct sparcspkr_state *state;
+ struct grover_beep_info *info;
+ int err = -ENOMEM;
+
+ state = kzalloc(sizeof(*state), GFP_KERNEL);
+ if (!state)
+ goto out_err;
+
+ state->name = "Sparc Grover Speaker";
+ state->event = grover_spkr_event;
+ spin_lock_init(&state->lock);
+
+ info = &state->u.grover;
+ info->freq_regs = of_ioremap(&op->resource[2], 0, 2, "grover beep freq");
+ if (!info->freq_regs)
+ goto out_free;
+
+ info->enable_reg = of_ioremap(&op->resource[3], 0, 1, "grover beep enable");
+ if (!info->enable_reg)
+ goto out_unmap_freq_regs;
+
+ dev_set_drvdata(&op->dev, state);
+
+ err = sparcspkr_probe(&op->dev);
+ if (err)
+ goto out_clear_drvdata;
+
+ return 0;
+
+out_clear_drvdata:
+ dev_set_drvdata(&op->dev, NULL);
+ of_iounmap(&op->resource[3], info->enable_reg, 1);
+
+out_unmap_freq_regs:
+ of_iounmap(&op->resource[2], info->freq_regs, 2);
+out_free:
+ kfree(state);
+out_err:
+ return err;
+}
+
+static int __devexit grover_remove(struct platform_device *op)
+{
+ struct sparcspkr_state *state = dev_get_drvdata(&op->dev);
+ struct grover_beep_info *info = &state->u.grover;
+ struct input_dev *input_dev = state->input_dev;
+
+ /* turn off the speaker */
+ state->event(input_dev, EV_SND, SND_BELL, 0);
+
+ input_unregister_device(input_dev);
+
+ of_iounmap(&op->resource[3], info->enable_reg, 1);
+ of_iounmap(&op->resource[2], info->freq_regs, 2);
+
+ dev_set_drvdata(&op->dev, NULL);
+ kfree(state);
+
+ return 0;
+}
+
+static const struct of_device_id grover_beep_match[] = {
+ {
+ .name = "beep",
+ .compatible = "SUNW,smbus-beep",
+ },
+ {},
+};
+
+static struct platform_driver grover_beep_driver = {
+ .driver = {
+ .name = "groverbeep",
+ .owner = THIS_MODULE,
+ .of_match_table = grover_beep_match,
+ },
+ .probe = grover_beep_probe,
+ .remove = __devexit_p(grover_remove),
+ .shutdown = sparcspkr_shutdown,
+};
+
+static int __init sparcspkr_init(void)
+{
+ int err = platform_driver_register(&bbc_beep_driver);
+
+ if (!err) {
+ err = platform_driver_register(&grover_beep_driver);
+ if (err)
+ platform_driver_unregister(&bbc_beep_driver);
+ }
+
+ return err;
+}
+
+static void __exit sparcspkr_exit(void)
+{
+ platform_driver_unregister(&bbc_beep_driver);
+ platform_driver_unregister(&grover_beep_driver);
+}
+
+module_init(sparcspkr_init);
+module_exit(sparcspkr_exit);
diff --git a/drivers/input/misc/twl4030-pwrbutton.c b/drivers/input/misc/twl4030-pwrbutton.c
new file mode 100644
index 0000000..38e4b50
--- /dev/null
+++ b/drivers/input/misc/twl4030-pwrbutton.c
@@ -0,0 +1,135 @@
+/**
+ * twl4030-pwrbutton.c - TWL4030 Power Button Input Driver
+ *
+ * Copyright (C) 2008-2009 Nokia Corporation
+ *
+ * Written by Peter De Schrijver <peter.de-schrijver@nokia.com>
+ * Several fixes by Felipe Balbi <felipe.balbi@nokia.com>
+ *
+ * This file is subject to the terms and conditions of the GNU General
+ * Public License. See the file "COPYING" in the main directory of this
+ * archive for more details.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/input.h>
+#include <linux/interrupt.h>
+#include <linux/platform_device.h>
+#include <linux/i2c/twl.h>
+
+#define PWR_PWRON_IRQ (1 << 0)
+
+#define STS_HW_CONDITIONS 0xf
+
+static irqreturn_t powerbutton_irq(int irq, void *_pwr)
+{
+ struct input_dev *pwr = _pwr;
+ int err;
+ u8 value;
+
+ err = twl_i2c_read_u8(TWL4030_MODULE_PM_MASTER, &value,
+ STS_HW_CONDITIONS);
+ if (!err) {
+ input_report_key(pwr, KEY_POWER, value & PWR_PWRON_IRQ);
+ input_sync(pwr);
+ } else {
+ dev_err(pwr->dev.parent, "twl4030: i2c error %d while reading"
+ " TWL4030 PM_MASTER STS_HW_CONDITIONS register\n", err);
+ }
+
+ return IRQ_HANDLED;
+}
+
+static int __init twl4030_pwrbutton_probe(struct platform_device *pdev)
+{
+ struct input_dev *pwr;
+ int irq = platform_get_irq(pdev, 0);
+ int err;
+
+ pwr = input_allocate_device();
+ if (!pwr) {
+ dev_dbg(&pdev->dev, "Can't allocate power button\n");
+ return -ENOMEM;
+ }
+
+ pwr->evbit[0] = BIT_MASK(EV_KEY);
+ pwr->keybit[BIT_WORD(KEY_POWER)] = BIT_MASK(KEY_POWER);
+ pwr->name = "twl4030_pwrbutton";
+ pwr->phys = "twl4030_pwrbutton/input0";
+ pwr->dev.parent = &pdev->dev;
+
+ err = request_threaded_irq(irq, NULL, powerbutton_irq,
+ IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING,
+ "twl4030_pwrbutton", pwr);
+ if (err < 0) {
+ dev_dbg(&pdev->dev, "Can't get IRQ for pwrbutton: %d\n", err);
+ goto free_input_dev;
+ }
+
+ err = input_register_device(pwr);
+ if (err) {
+ dev_dbg(&pdev->dev, "Can't register power button: %d\n", err);
+ goto free_irq;
+ }
+
+ platform_set_drvdata(pdev, pwr);
+
+ return 0;
+
+free_irq:
+ free_irq(irq, pwr);
+free_input_dev:
+ input_free_device(pwr);
+ return err;
+}
+
+static int __exit twl4030_pwrbutton_remove(struct platform_device *pdev)
+{
+ struct input_dev *pwr = platform_get_drvdata(pdev);
+ int irq = platform_get_irq(pdev, 0);
+
+ free_irq(irq, pwr);
+ input_unregister_device(pwr);
+
+ return 0;
+}
+
+static struct platform_driver twl4030_pwrbutton_driver = {
+ .remove = __exit_p(twl4030_pwrbutton_remove),
+ .driver = {
+ .name = "twl4030_pwrbutton",
+ .owner = THIS_MODULE,
+ },
+};
+
+static int __init twl4030_pwrbutton_init(void)
+{
+ return platform_driver_probe(&twl4030_pwrbutton_driver,
+ twl4030_pwrbutton_probe);
+}
+module_init(twl4030_pwrbutton_init);
+
+static void __exit twl4030_pwrbutton_exit(void)
+{
+ platform_driver_unregister(&twl4030_pwrbutton_driver);
+}
+module_exit(twl4030_pwrbutton_exit);
+
+MODULE_ALIAS("platform:twl4030_pwrbutton");
+MODULE_DESCRIPTION("Triton2 Power Button");
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Peter De Schrijver <peter.de-schrijver@nokia.com>");
+MODULE_AUTHOR("Felipe Balbi <felipe.balbi@nokia.com>");
+
diff --git a/drivers/input/misc/twl4030-vibra.c b/drivers/input/misc/twl4030-vibra.c
new file mode 100644
index 0000000..3c1a432
--- /dev/null
+++ b/drivers/input/misc/twl4030-vibra.c
@@ -0,0 +1,298 @@
+/*
+ * twl4030-vibra.c - TWL4030 Vibrator driver
+ *
+ * Copyright (C) 2008-2010 Nokia Corporation
+ *
+ * Written by Henrik Saari <henrik.saari@nokia.com>
+ * Updates by Felipe Balbi <felipe.balbi@nokia.com>
+ * Input by Jari Vanhala <ext-jari.vanhala@nokia.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/jiffies.h>
+#include <linux/platform_device.h>
+#include <linux/workqueue.h>
+#include <linux/i2c/twl.h>
+#include <linux/mfd/twl4030-audio.h>
+#include <linux/input.h>
+#include <linux/slab.h>
+
+/* MODULE ID2 */
+#define LEDEN 0x00
+
+/* ForceFeedback */
+#define EFFECT_DIR_180_DEG 0x8000 /* range is 0 - 0xFFFF */
+
+struct vibra_info {
+ struct device *dev;
+ struct input_dev *input_dev;
+
+ struct workqueue_struct *workqueue;
+ struct work_struct play_work;
+
+ bool enabled;
+ int speed;
+ int direction;
+
+ bool coexist;
+};
+
+static void vibra_disable_leds(void)
+{
+ u8 reg;
+
+ /* Disable LEDA & LEDB, cannot be used with vibra (PWM) */
+ twl_i2c_read_u8(TWL4030_MODULE_LED, ®, LEDEN);
+ reg &= ~0x03;
+ twl_i2c_write_u8(TWL4030_MODULE_LED, LEDEN, reg);
+}
+
+/* Powers H-Bridge and enables audio clk */
+static void vibra_enable(struct vibra_info *info)
+{
+ u8 reg;
+
+ twl4030_audio_enable_resource(TWL4030_AUDIO_RES_POWER);
+
+ /* turn H-Bridge on */
+ twl_i2c_read_u8(TWL4030_MODULE_AUDIO_VOICE,
+ ®, TWL4030_REG_VIBRA_CTL);
+ twl_i2c_write_u8(TWL4030_MODULE_AUDIO_VOICE,
+ (reg | TWL4030_VIBRA_EN), TWL4030_REG_VIBRA_CTL);
+
+ twl4030_audio_enable_resource(TWL4030_AUDIO_RES_APLL);
+
+ info->enabled = true;
+}
+
+static void vibra_disable(struct vibra_info *info)
+{
+ u8 reg;
+
+ /* Power down H-Bridge */
+ twl_i2c_read_u8(TWL4030_MODULE_AUDIO_VOICE,
+ ®, TWL4030_REG_VIBRA_CTL);
+ twl_i2c_write_u8(TWL4030_MODULE_AUDIO_VOICE,
+ (reg & ~TWL4030_VIBRA_EN), TWL4030_REG_VIBRA_CTL);
+
+ twl4030_audio_disable_resource(TWL4030_AUDIO_RES_APLL);
+ twl4030_audio_disable_resource(TWL4030_AUDIO_RES_POWER);
+
+ info->enabled = false;
+}
+
+static void vibra_play_work(struct work_struct *work)
+{
+ struct vibra_info *info = container_of(work,
+ struct vibra_info, play_work);
+ int dir;
+ int pwm;
+ u8 reg;
+
+ dir = info->direction;
+ pwm = info->speed;
+
+ twl_i2c_read_u8(TWL4030_MODULE_AUDIO_VOICE,
+ ®, TWL4030_REG_VIBRA_CTL);
+ if (pwm && (!info->coexist || !(reg & TWL4030_VIBRA_SEL))) {
+
+ if (!info->enabled)
+ vibra_enable(info);
+
+ /* set vibra rotation direction */
+ twl_i2c_read_u8(TWL4030_MODULE_AUDIO_VOICE,
+ ®, TWL4030_REG_VIBRA_CTL);
+ reg = (dir) ? (reg | TWL4030_VIBRA_DIR) :
+ (reg & ~TWL4030_VIBRA_DIR);
+ twl_i2c_write_u8(TWL4030_MODULE_AUDIO_VOICE,
+ reg, TWL4030_REG_VIBRA_CTL);
+
+ /* set PWM, 1 = max, 255 = min */
+ twl_i2c_write_u8(TWL4030_MODULE_AUDIO_VOICE,
+ 256 - pwm, TWL4030_REG_VIBRA_SET);
+ } else {
+ if (info->enabled)
+ vibra_disable(info);
+ }
+}
+
+/*** Input/ForceFeedback ***/
+
+static int vibra_play(struct input_dev *input, void *data,
+ struct ff_effect *effect)
+{
+ struct vibra_info *info = input_get_drvdata(input);
+
+ info->speed = effect->u.rumble.strong_magnitude >> 8;
+ if (!info->speed)
+ info->speed = effect->u.rumble.weak_magnitude >> 9;
+ info->direction = effect->direction < EFFECT_DIR_180_DEG ? 0 : 1;
+ queue_work(info->workqueue, &info->play_work);
+ return 0;
+}
+
+static int twl4030_vibra_open(struct input_dev *input)
+{
+ struct vibra_info *info = input_get_drvdata(input);
+
+ info->workqueue = create_singlethread_workqueue("vibra");
+ if (info->workqueue == NULL) {
+ dev_err(&input->dev, "couldn't create workqueue\n");
+ return -ENOMEM;
+ }
+ return 0;
+}
+
+static void twl4030_vibra_close(struct input_dev *input)
+{
+ struct vibra_info *info = input_get_drvdata(input);
+
+ cancel_work_sync(&info->play_work);
+ INIT_WORK(&info->play_work, vibra_play_work); /* cleanup */
+ destroy_workqueue(info->workqueue);
+ info->workqueue = NULL;
+
+ if (info->enabled)
+ vibra_disable(info);
+}
+
+/*** Module ***/
+#if CONFIG_PM
+static int twl4030_vibra_suspend(struct device *dev)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ struct vibra_info *info = platform_get_drvdata(pdev);
+
+ if (info->enabled)
+ vibra_disable(info);
+
+ return 0;
+}
+
+static int twl4030_vibra_resume(struct device *dev)
+{
+ vibra_disable_leds();
+ return 0;
+}
+
+static SIMPLE_DEV_PM_OPS(twl4030_vibra_pm_ops,
+ twl4030_vibra_suspend, twl4030_vibra_resume);
+#endif
+
+static int __devinit twl4030_vibra_probe(struct platform_device *pdev)
+{
+ struct twl4030_vibra_data *pdata = pdev->dev.platform_data;
+ struct vibra_info *info;
+ int ret;
+
+ if (!pdata) {
+ dev_dbg(&pdev->dev, "platform_data not available\n");
+ return -EINVAL;
+ }
+
+ info = kzalloc(sizeof(*info), GFP_KERNEL);
+ if (!info)
+ return -ENOMEM;
+
+ info->dev = &pdev->dev;
+ info->coexist = pdata->coexist;
+ INIT_WORK(&info->play_work, vibra_play_work);
+
+ info->input_dev = input_allocate_device();
+ if (info->input_dev == NULL) {
+ dev_err(&pdev->dev, "couldn't allocate input device\n");
+ ret = -ENOMEM;
+ goto err_kzalloc;
+ }
+
+ input_set_drvdata(info->input_dev, info);
+
+ info->input_dev->name = "twl4030:vibrator";
+ info->input_dev->id.version = 1;
+ info->input_dev->dev.parent = pdev->dev.parent;
+ info->input_dev->open = twl4030_vibra_open;
+ info->input_dev->close = twl4030_vibra_close;
+ __set_bit(FF_RUMBLE, info->input_dev->ffbit);
+
+ ret = input_ff_create_memless(info->input_dev, NULL, vibra_play);
+ if (ret < 0) {
+ dev_dbg(&pdev->dev, "couldn't register vibrator to FF\n");
+ goto err_ialloc;
+ }
+
+ ret = input_register_device(info->input_dev);
+ if (ret < 0) {
+ dev_dbg(&pdev->dev, "couldn't register input device\n");
+ goto err_iff;
+ }
+
+ vibra_disable_leds();
+
+ platform_set_drvdata(pdev, info);
+ return 0;
+
+err_iff:
+ input_ff_destroy(info->input_dev);
+err_ialloc:
+ input_free_device(info->input_dev);
+err_kzalloc:
+ kfree(info);
+ return ret;
+}
+
+static int __devexit twl4030_vibra_remove(struct platform_device *pdev)
+{
+ struct vibra_info *info = platform_get_drvdata(pdev);
+
+ /* this also free ff-memless and calls close if needed */
+ input_unregister_device(info->input_dev);
+ kfree(info);
+ platform_set_drvdata(pdev, NULL);
+
+ return 0;
+}
+
+static struct platform_driver twl4030_vibra_driver = {
+ .probe = twl4030_vibra_probe,
+ .remove = __devexit_p(twl4030_vibra_remove),
+ .driver = {
+ .name = "twl4030-vibra",
+ .owner = THIS_MODULE,
+#ifdef CONFIG_PM
+ .pm = &twl4030_vibra_pm_ops,
+#endif
+ },
+};
+
+static int __init twl4030_vibra_init(void)
+{
+ return platform_driver_register(&twl4030_vibra_driver);
+}
+module_init(twl4030_vibra_init);
+
+static void __exit twl4030_vibra_exit(void)
+{
+ platform_driver_unregister(&twl4030_vibra_driver);
+}
+module_exit(twl4030_vibra_exit);
+
+MODULE_ALIAS("platform:twl4030-vibra");
+
+MODULE_DESCRIPTION("TWL4030 Vibra driver");
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Nokia Corporation");
diff --git a/drivers/input/misc/twl6040-vibra.c b/drivers/input/misc/twl6040-vibra.c
new file mode 100644
index 0000000..ad153a4
--- /dev/null
+++ b/drivers/input/misc/twl6040-vibra.c
@@ -0,0 +1,430 @@
+/*
+ * twl6040-vibra.c - TWL6040 Vibrator driver
+ *
+ * Author: Jorge Eduardo Candelaria <jorge.candelaria@ti.com>
+ * Author: Misael Lopez Cruz <misael.lopez@ti.com>
+ *
+ * Copyright: (C) 2011 Texas Instruments, Inc.
+ *
+ * Based on twl4030-vibra.c by Henrik Saari <henrik.saari@nokia.com>
+ * Felipe Balbi <felipe.balbi@nokia.com>
+ * Jari Vanhala <ext-javi.vanhala@nokia.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ */
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/workqueue.h>
+#include <linux/i2c/twl.h>
+#include <linux/mfd/twl6040.h>
+#include <linux/slab.h>
+#include <linux/delay.h>
+#include <linux/regulator/consumer.h>
+
+#define EFFECT_DIR_180_DEG 0x8000
+
+/* Recommended modulation index 85% */
+#define TWL6040_VIBRA_MOD 85
+
+#define TWL6040_NUM_SUPPLIES 2
+
+struct vibra_info {
+ struct device *dev;
+ struct input_dev *input_dev;
+ struct workqueue_struct *workqueue;
+ struct work_struct play_work;
+ struct mutex mutex;
+ int irq;
+
+ bool enabled;
+ int weak_speed;
+ int strong_speed;
+ int direction;
+
+ unsigned int vibldrv_res;
+ unsigned int vibrdrv_res;
+ unsigned int viblmotor_res;
+ unsigned int vibrmotor_res;
+
+ struct regulator_bulk_data supplies[TWL6040_NUM_SUPPLIES];
+
+ struct twl6040 *twl6040;
+};
+
+static irqreturn_t twl6040_vib_irq_handler(int irq, void *data)
+{
+ struct vibra_info *info = data;
+ struct twl6040 *twl6040 = info->twl6040;
+ u8 status;
+
+ status = twl6040_reg_read(twl6040, TWL6040_REG_STATUS);
+ if (status & TWL6040_VIBLOCDET) {
+ dev_warn(info->dev, "Left Vibrator overcurrent detected\n");
+ twl6040_clear_bits(twl6040, TWL6040_REG_VIBCTLL,
+ TWL6040_VIBENA);
+ }
+ if (status & TWL6040_VIBROCDET) {
+ dev_warn(info->dev, "Right Vibrator overcurrent detected\n");
+ twl6040_clear_bits(twl6040, TWL6040_REG_VIBCTLR,
+ TWL6040_VIBENA);
+ }
+
+ return IRQ_HANDLED;
+}
+
+static void twl6040_vibra_enable(struct vibra_info *info)
+{
+ struct twl6040 *twl6040 = info->twl6040;
+ int ret;
+
+ ret = regulator_bulk_enable(ARRAY_SIZE(info->supplies), info->supplies);
+ if (ret) {
+ dev_err(info->dev, "failed to enable regulators %d\n", ret);
+ return;
+ }
+
+ twl6040_power(info->twl6040, 1);
+ if (twl6040_get_revid(twl6040) <= TWL6040_REV_ES1_1) {
+ /*
+ * ERRATA: Disable overcurrent protection for at least
+ * 3ms when enabling vibrator drivers to avoid false
+ * overcurrent detection
+ */
+ twl6040_reg_write(twl6040, TWL6040_REG_VIBCTLL,
+ TWL6040_VIBENA | TWL6040_VIBCTRL);
+ twl6040_reg_write(twl6040, TWL6040_REG_VIBCTLR,
+ TWL6040_VIBENA | TWL6040_VIBCTRL);
+ usleep_range(3000, 3500);
+ }
+
+ twl6040_reg_write(twl6040, TWL6040_REG_VIBCTLL,
+ TWL6040_VIBENA);
+ twl6040_reg_write(twl6040, TWL6040_REG_VIBCTLR,
+ TWL6040_VIBENA);
+
+ info->enabled = true;
+}
+
+static void twl6040_vibra_disable(struct vibra_info *info)
+{
+ struct twl6040 *twl6040 = info->twl6040;
+
+ twl6040_reg_write(twl6040, TWL6040_REG_VIBCTLL, 0x00);
+ twl6040_reg_write(twl6040, TWL6040_REG_VIBCTLR, 0x00);
+ twl6040_power(info->twl6040, 0);
+
+ regulator_bulk_disable(ARRAY_SIZE(info->supplies), info->supplies);
+
+ info->enabled = false;
+}
+
+static u8 twl6040_vibra_code(int vddvib, int vibdrv_res, int motor_res,
+ int speed, int direction)
+{
+ int vpk, max_code;
+ u8 vibdat;
+
+ /* output swing */
+ vpk = (vddvib * motor_res * TWL6040_VIBRA_MOD) /
+ (100 * (vibdrv_res + motor_res));
+
+ /* 50mV per VIBDAT code step */
+ max_code = vpk / 50;
+ if (max_code > TWL6040_VIBDAT_MAX)
+ max_code = TWL6040_VIBDAT_MAX;
+
+ /* scale speed to max allowed code */
+ vibdat = (u8)((speed * max_code) / USHRT_MAX);
+
+ /* 2's complement for direction > 180 degrees */
+ vibdat *= direction;
+
+ return vibdat;
+}
+
+static void twl6040_vibra_set_effect(struct vibra_info *info)
+{
+ struct twl6040 *twl6040 = info->twl6040;
+ u8 vibdatl, vibdatr;
+ int volt;
+
+ /* weak motor */
+ volt = regulator_get_voltage(info->supplies[0].consumer) / 1000;
+ vibdatl = twl6040_vibra_code(volt, info->vibldrv_res,
+ info->viblmotor_res,
+ info->weak_speed, info->direction);
+
+ /* strong motor */
+ volt = regulator_get_voltage(info->supplies[1].consumer) / 1000;
+ vibdatr = twl6040_vibra_code(volt, info->vibrdrv_res,
+ info->vibrmotor_res,
+ info->strong_speed, info->direction);
+
+ twl6040_reg_write(twl6040, TWL6040_REG_VIBDATL, vibdatl);
+ twl6040_reg_write(twl6040, TWL6040_REG_VIBDATR, vibdatr);
+}
+
+static void vibra_play_work(struct work_struct *work)
+{
+ struct vibra_info *info = container_of(work,
+ struct vibra_info, play_work);
+
+ mutex_lock(&info->mutex);
+
+ if (info->weak_speed || info->strong_speed) {
+ if (!info->enabled)
+ twl6040_vibra_enable(info);
+
+ twl6040_vibra_set_effect(info);
+ } else if (info->enabled)
+ twl6040_vibra_disable(info);
+
+ mutex_unlock(&info->mutex);
+}
+
+static int vibra_play(struct input_dev *input, void *data,
+ struct ff_effect *effect)
+{
+ struct vibra_info *info = input_get_drvdata(input);
+ int ret;
+
+ /* Do not allow effect, while the routing is set to use audio */
+ ret = twl6040_get_vibralr_status(info->twl6040);
+ if (ret & TWL6040_VIBSEL) {
+ dev_info(&input->dev, "Vibra is configured for audio\n");
+ return -EBUSY;
+ }
+
+ info->weak_speed = effect->u.rumble.weak_magnitude;
+ info->strong_speed = effect->u.rumble.strong_magnitude;
+ info->direction = effect->direction < EFFECT_DIR_180_DEG ? 1 : -1;
+
+ ret = queue_work(info->workqueue, &info->play_work);
+ if (!ret) {
+ dev_info(&input->dev, "work is already on queue\n");
+ return ret;
+ }
+
+ return 0;
+}
+
+static void twl6040_vibra_close(struct input_dev *input)
+{
+ struct vibra_info *info = input_get_drvdata(input);
+
+ cancel_work_sync(&info->play_work);
+
+ mutex_lock(&info->mutex);
+
+ if (info->enabled)
+ twl6040_vibra_disable(info);
+
+ mutex_unlock(&info->mutex);
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int twl6040_vibra_suspend(struct device *dev)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ struct vibra_info *info = platform_get_drvdata(pdev);
+
+ mutex_lock(&info->mutex);
+
+ if (info->enabled)
+ twl6040_vibra_disable(info);
+
+ mutex_unlock(&info->mutex);
+
+ return 0;
+}
+
+#endif
+
+static SIMPLE_DEV_PM_OPS(twl6040_vibra_pm_ops, twl6040_vibra_suspend, NULL);
+
+static int __devinit twl6040_vibra_probe(struct platform_device *pdev)
+{
+ struct twl4030_vibra_data *pdata = pdev->dev.platform_data;
+ struct vibra_info *info;
+ int ret;
+
+ if (!pdata) {
+ dev_err(&pdev->dev, "platform_data not available\n");
+ return -EINVAL;
+ }
+
+ info = kzalloc(sizeof(*info), GFP_KERNEL);
+ if (!info) {
+ dev_err(&pdev->dev, "couldn't allocate memory\n");
+ return -ENOMEM;
+ }
+
+ info->dev = &pdev->dev;
+ info->twl6040 = dev_get_drvdata(pdev->dev.parent);
+ info->vibldrv_res = pdata->vibldrv_res;
+ info->vibrdrv_res = pdata->vibrdrv_res;
+ info->viblmotor_res = pdata->viblmotor_res;
+ info->vibrmotor_res = pdata->vibrmotor_res;
+ if ((!info->vibldrv_res && !info->viblmotor_res) ||
+ (!info->vibrdrv_res && !info->vibrmotor_res)) {
+ dev_err(info->dev, "invalid vibra driver/motor resistance\n");
+ ret = -EINVAL;
+ goto err_kzalloc;
+ }
+
+ info->irq = platform_get_irq(pdev, 0);
+ if (info->irq < 0) {
+ dev_err(info->dev, "invalid irq\n");
+ ret = -EINVAL;
+ goto err_kzalloc;
+ }
+
+ mutex_init(&info->mutex);
+
+ info->input_dev = input_allocate_device();
+ if (info->input_dev == NULL) {
+ dev_err(info->dev, "couldn't allocate input device\n");
+ ret = -ENOMEM;
+ goto err_kzalloc;
+ }
+
+ input_set_drvdata(info->input_dev, info);
+
+ info->input_dev->name = "twl6040:vibrator";
+ info->input_dev->id.version = 1;
+ info->input_dev->dev.parent = pdev->dev.parent;
+ info->input_dev->close = twl6040_vibra_close;
+ __set_bit(FF_RUMBLE, info->input_dev->ffbit);
+
+ ret = input_ff_create_memless(info->input_dev, NULL, vibra_play);
+ if (ret < 0) {
+ dev_err(info->dev, "couldn't register vibrator to FF\n");
+ goto err_ialloc;
+ }
+
+ ret = input_register_device(info->input_dev);
+ if (ret < 0) {
+ dev_err(info->dev, "couldn't register input device\n");
+ goto err_iff;
+ }
+
+ platform_set_drvdata(pdev, info);
+
+ ret = request_threaded_irq(info->irq, NULL, twl6040_vib_irq_handler, 0,
+ "twl6040_irq_vib", info);
+ if (ret) {
+ dev_err(info->dev, "VIB IRQ request failed: %d\n", ret);
+ goto err_irq;
+ }
+
+ info->supplies[0].supply = "vddvibl";
+ info->supplies[1].supply = "vddvibr";
+ ret = regulator_bulk_get(info->dev, ARRAY_SIZE(info->supplies),
+ info->supplies);
+ if (ret) {
+ dev_err(info->dev, "couldn't get regulators %d\n", ret);
+ goto err_regulator;
+ }
+
+ if (pdata->vddvibl_uV) {
+ ret = regulator_set_voltage(info->supplies[0].consumer,
+ pdata->vddvibl_uV,
+ pdata->vddvibl_uV);
+ if (ret) {
+ dev_err(info->dev, "failed to set VDDVIBL volt %d\n",
+ ret);
+ goto err_voltage;
+ }
+ }
+
+ if (pdata->vddvibr_uV) {
+ ret = regulator_set_voltage(info->supplies[1].consumer,
+ pdata->vddvibr_uV,
+ pdata->vddvibr_uV);
+ if (ret) {
+ dev_err(info->dev, "failed to set VDDVIBR volt %d\n",
+ ret);
+ goto err_voltage;
+ }
+ }
+
+ info->workqueue = alloc_workqueue("twl6040-vibra", 0, 0);
+ if (info->workqueue == NULL) {
+ dev_err(info->dev, "couldn't create workqueue\n");
+ ret = -ENOMEM;
+ goto err_voltage;
+ }
+ INIT_WORK(&info->play_work, vibra_play_work);
+
+ return 0;
+
+err_voltage:
+ regulator_bulk_free(ARRAY_SIZE(info->supplies), info->supplies);
+err_regulator:
+ free_irq(info->irq, info);
+err_irq:
+ input_unregister_device(info->input_dev);
+ info->input_dev = NULL;
+err_iff:
+ if (info->input_dev)
+ input_ff_destroy(info->input_dev);
+err_ialloc:
+ input_free_device(info->input_dev);
+err_kzalloc:
+ kfree(info);
+ return ret;
+}
+
+static int __devexit twl6040_vibra_remove(struct platform_device *pdev)
+{
+ struct vibra_info *info = platform_get_drvdata(pdev);
+
+ input_unregister_device(info->input_dev);
+ free_irq(info->irq, info);
+ regulator_bulk_free(ARRAY_SIZE(info->supplies), info->supplies);
+ destroy_workqueue(info->workqueue);
+ kfree(info);
+
+ return 0;
+}
+
+static struct platform_driver twl6040_vibra_driver = {
+ .probe = twl6040_vibra_probe,
+ .remove = __devexit_p(twl6040_vibra_remove),
+ .driver = {
+ .name = "twl6040-vibra",
+ .owner = THIS_MODULE,
+ .pm = &twl6040_vibra_pm_ops,
+ },
+};
+
+static int __init twl6040_vibra_init(void)
+{
+ return platform_driver_register(&twl6040_vibra_driver);
+}
+module_init(twl6040_vibra_init);
+
+static void __exit twl6040_vibra_exit(void)
+{
+ platform_driver_unregister(&twl6040_vibra_driver);
+}
+module_exit(twl6040_vibra_exit);
+
+MODULE_ALIAS("platform:twl6040-vibra");
+MODULE_DESCRIPTION("TWL6040 Vibra driver");
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Jorge Eduardo Candelaria <jorge.candelaria@ti.com>");
+MODULE_AUTHOR("Misael Lopez Cruz <misael.lopez@ti.com>");
diff --git a/drivers/input/misc/uinput.c b/drivers/input/misc/uinput.c
new file mode 100644
index 0000000..7360568
--- /dev/null
+++ b/drivers/input/misc/uinput.c
@@ -0,0 +1,834 @@
+/*
+ * User level driver support for input subsystem
+ *
+ * Heavily based on evdev.c by Vojtech Pavlik
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * Author: Aristeu Sergio Rozanski Filho <aris@cathedrallabs.org>
+ *
+ * Changes/Revisions:
+ * 0.3 09/04/2006 (Anssi Hannula <anssi.hannula@gmail.com>)
+ * - updated ff support for the changes in kernel interface
+ * - added MODULE_VERSION
+ * 0.2 16/10/2004 (Micah Dowty <micah@navi.cx>)
+ * - added force feedback support
+ * - added UI_SET_PHYS
+ * 0.1 20/06/2002
+ * - first public version
+ */
+#include <linux/poll.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/fs.h>
+#include <linux/miscdevice.h>
+#include <linux/uinput.h>
+#include <linux/input/mt.h>
+#include "../input-compat.h"
+
+static int uinput_dev_event(struct input_dev *dev, unsigned int type, unsigned int code, int value)
+{
+ struct uinput_device *udev = input_get_drvdata(dev);
+
+ udev->buff[udev->head].type = type;
+ udev->buff[udev->head].code = code;
+ udev->buff[udev->head].value = value;
+ do_gettimeofday(&udev->buff[udev->head].time);
+ udev->head = (udev->head + 1) % UINPUT_BUFFER_SIZE;
+
+ wake_up_interruptible(&udev->waitq);
+
+ return 0;
+}
+
+/* Atomically allocate an ID for the given request. Returns 0 on success. */
+static int uinput_request_alloc_id(struct uinput_device *udev, struct uinput_request *request)
+{
+ int id;
+ int err = -1;
+
+ spin_lock(&udev->requests_lock);
+
+ for (id = 0; id < UINPUT_NUM_REQUESTS; id++) {
+ if (!udev->requests[id]) {
+ request->id = id;
+ udev->requests[id] = request;
+ err = 0;
+ break;
+ }
+ }
+
+ spin_unlock(&udev->requests_lock);
+ return err;
+}
+
+static struct uinput_request *uinput_request_find(struct uinput_device *udev, int id)
+{
+ /* Find an input request, by ID. Returns NULL if the ID isn't valid. */
+ if (id >= UINPUT_NUM_REQUESTS || id < 0)
+ return NULL;
+
+ return udev->requests[id];
+}
+
+static inline int uinput_request_reserve_slot(struct uinput_device *udev, struct uinput_request *request)
+{
+ /* Allocate slot. If none are available right away, wait. */
+ return wait_event_interruptible(udev->requests_waitq,
+ !uinput_request_alloc_id(udev, request));
+}
+
+static void uinput_request_done(struct uinput_device *udev, struct uinput_request *request)
+{
+ /* Mark slot as available */
+ udev->requests[request->id] = NULL;
+ wake_up(&udev->requests_waitq);
+
+ complete(&request->done);
+}
+
+static int uinput_request_submit(struct uinput_device *udev, struct uinput_request *request)
+{
+ int retval;
+
+ retval = uinput_request_reserve_slot(udev, request);
+ if (retval)
+ return retval;
+
+ retval = mutex_lock_interruptible(&udev->mutex);
+ if (retval)
+ return retval;
+
+ if (udev->state != UIST_CREATED) {
+ retval = -ENODEV;
+ goto out;
+ }
+
+ /* Tell our userspace app about this new request by queueing an input event */
+ uinput_dev_event(udev->dev, EV_UINPUT, request->code, request->id);
+
+ out:
+ mutex_unlock(&udev->mutex);
+ return retval;
+}
+
+/*
+ * Fail all ouitstanding requests so handlers don't wait for the userspace
+ * to finish processing them.
+ */
+static void uinput_flush_requests(struct uinput_device *udev)
+{
+ struct uinput_request *request;
+ int i;
+
+ spin_lock(&udev->requests_lock);
+
+ for (i = 0; i < UINPUT_NUM_REQUESTS; i++) {
+ request = udev->requests[i];
+ if (request) {
+ request->retval = -ENODEV;
+ uinput_request_done(udev, request);
+ }
+ }
+
+ spin_unlock(&udev->requests_lock);
+}
+
+static void uinput_dev_set_gain(struct input_dev *dev, u16 gain)
+{
+ uinput_dev_event(dev, EV_FF, FF_GAIN, gain);
+}
+
+static void uinput_dev_set_autocenter(struct input_dev *dev, u16 magnitude)
+{
+ uinput_dev_event(dev, EV_FF, FF_AUTOCENTER, magnitude);
+}
+
+static int uinput_dev_playback(struct input_dev *dev, int effect_id, int value)
+{
+ return uinput_dev_event(dev, EV_FF, effect_id, value);
+}
+
+static int uinput_dev_upload_effect(struct input_dev *dev, struct ff_effect *effect, struct ff_effect *old)
+{
+ struct uinput_device *udev = input_get_drvdata(dev);
+ struct uinput_request request;
+ int retval;
+
+ /*
+ * uinput driver does not currently support periodic effects with
+ * custom waveform since it does not have a way to pass buffer of
+ * samples (custom_data) to userspace. If ever there is a device
+ * supporting custom waveforms we would need to define an additional
+ * ioctl (UI_UPLOAD_SAMPLES) but for now we just bail out.
+ */
+ if (effect->type == FF_PERIODIC &&
+ effect->u.periodic.waveform == FF_CUSTOM)
+ return -EINVAL;
+
+ request.id = -1;
+ init_completion(&request.done);
+ request.code = UI_FF_UPLOAD;
+ request.u.upload.effect = effect;
+ request.u.upload.old = old;
+
+ retval = uinput_request_submit(udev, &request);
+ if (!retval) {
+ wait_for_completion(&request.done);
+ retval = request.retval;
+ }
+
+ return retval;
+}
+
+static int uinput_dev_erase_effect(struct input_dev *dev, int effect_id)
+{
+ struct uinput_device *udev = input_get_drvdata(dev);
+ struct uinput_request request;
+ int retval;
+
+ if (!test_bit(EV_FF, dev->evbit))
+ return -ENOSYS;
+
+ request.id = -1;
+ init_completion(&request.done);
+ request.code = UI_FF_ERASE;
+ request.u.effect_id = effect_id;
+
+ retval = uinput_request_submit(udev, &request);
+ if (!retval) {
+ wait_for_completion(&request.done);
+ retval = request.retval;
+ }
+
+ return retval;
+}
+
+static void uinput_destroy_device(struct uinput_device *udev)
+{
+ const char *name, *phys;
+ struct input_dev *dev = udev->dev;
+ enum uinput_state old_state = udev->state;
+
+ udev->state = UIST_NEW_DEVICE;
+
+ if (dev) {
+ name = dev->name;
+ phys = dev->phys;
+ if (old_state == UIST_CREATED) {
+ uinput_flush_requests(udev);
+ input_unregister_device(dev);
+ } else {
+ input_free_device(dev);
+ }
+ kfree(name);
+ kfree(phys);
+ udev->dev = NULL;
+ }
+}
+
+static int uinput_create_device(struct uinput_device *udev)
+{
+ struct input_dev *dev = udev->dev;
+ int error;
+
+ if (udev->state != UIST_SETUP_COMPLETE) {
+ printk(KERN_DEBUG "%s: write device info first\n", UINPUT_NAME);
+ return -EINVAL;
+ }
+
+ if (udev->ff_effects_max) {
+ error = input_ff_create(dev, udev->ff_effects_max);
+ if (error)
+ goto fail1;
+
+ dev->ff->upload = uinput_dev_upload_effect;
+ dev->ff->erase = uinput_dev_erase_effect;
+ dev->ff->playback = uinput_dev_playback;
+ dev->ff->set_gain = uinput_dev_set_gain;
+ dev->ff->set_autocenter = uinput_dev_set_autocenter;
+ }
+
+ error = input_register_device(udev->dev);
+ if (error)
+ goto fail2;
+
+ udev->state = UIST_CREATED;
+
+ return 0;
+
+ fail2: input_ff_destroy(dev);
+ fail1: uinput_destroy_device(udev);
+ return error;
+}
+
+static int uinput_open(struct inode *inode, struct file *file)
+{
+ struct uinput_device *newdev;
+
+ newdev = kzalloc(sizeof(struct uinput_device), GFP_KERNEL);
+ if (!newdev)
+ return -ENOMEM;
+
+ mutex_init(&newdev->mutex);
+ spin_lock_init(&newdev->requests_lock);
+ init_waitqueue_head(&newdev->requests_waitq);
+ init_waitqueue_head(&newdev->waitq);
+ newdev->state = UIST_NEW_DEVICE;
+
+ file->private_data = newdev;
+ nonseekable_open(inode, file);
+
+ return 0;
+}
+
+static int uinput_validate_absbits(struct input_dev *dev)
+{
+ unsigned int cnt;
+ int retval = 0;
+
+ for (cnt = 0; cnt < ABS_CNT; cnt++) {
+ int min, max;
+ if (!test_bit(cnt, dev->absbit))
+ continue;
+
+ min = input_abs_get_min(dev, cnt);
+ max = input_abs_get_max(dev, cnt);
+
+ if ((min != 0 || max != 0) && max <= min) {
+ printk(KERN_DEBUG
+ "%s: invalid abs[%02x] min:%d max:%d\n",
+ UINPUT_NAME, cnt,
+ input_abs_get_min(dev, cnt),
+ input_abs_get_max(dev, cnt));
+ retval = -EINVAL;
+ break;
+ }
+
+ if (input_abs_get_flat(dev, cnt) >
+ input_abs_get_max(dev, cnt) - input_abs_get_min(dev, cnt)) {
+ printk(KERN_DEBUG
+ "%s: abs_flat #%02x out of range: %d "
+ "(min:%d/max:%d)\n",
+ UINPUT_NAME, cnt,
+ input_abs_get_flat(dev, cnt),
+ input_abs_get_min(dev, cnt),
+ input_abs_get_max(dev, cnt));
+ retval = -EINVAL;
+ break;
+ }
+ }
+ return retval;
+}
+
+static int uinput_allocate_device(struct uinput_device *udev)
+{
+ udev->dev = input_allocate_device();
+ if (!udev->dev)
+ return -ENOMEM;
+
+ udev->dev->event = uinput_dev_event;
+ input_set_drvdata(udev->dev, udev);
+
+ return 0;
+}
+
+static int uinput_setup_device(struct uinput_device *udev, const char __user *buffer, size_t count)
+{
+ struct uinput_user_dev *user_dev;
+ struct input_dev *dev;
+ int i;
+ int retval;
+
+ if (count != sizeof(struct uinput_user_dev))
+ return -EINVAL;
+
+ if (!udev->dev) {
+ retval = uinput_allocate_device(udev);
+ if (retval)
+ return retval;
+ }
+
+ dev = udev->dev;
+
+ user_dev = memdup_user(buffer, sizeof(struct uinput_user_dev));
+ if (IS_ERR(user_dev))
+ return PTR_ERR(user_dev);
+
+ udev->ff_effects_max = user_dev->ff_effects_max;
+
+ /* Ensure name is filled in */
+ if (!user_dev->name[0]) {
+ retval = -EINVAL;
+ goto exit;
+ }
+
+ kfree(dev->name);
+ dev->name = kstrndup(user_dev->name, UINPUT_MAX_NAME_SIZE,
+ GFP_KERNEL);
+ if (!dev->name) {
+ retval = -ENOMEM;
+ goto exit;
+ }
+
+ dev->id.bustype = user_dev->id.bustype;
+ dev->id.vendor = user_dev->id.vendor;
+ dev->id.product = user_dev->id.product;
+ dev->id.version = user_dev->id.version;
+
+ for (i = 0; i < ABS_CNT; i++) {
+ input_abs_set_max(dev, i, user_dev->absmax[i]);
+ input_abs_set_min(dev, i, user_dev->absmin[i]);
+ input_abs_set_fuzz(dev, i, user_dev->absfuzz[i]);
+ input_abs_set_flat(dev, i, user_dev->absflat[i]);
+ }
+
+ /* check if absmin/absmax/absfuzz/absflat are filled as
+ * told in Documentation/input/input-programming.txt */
+ if (test_bit(EV_ABS, dev->evbit)) {
+ retval = uinput_validate_absbits(dev);
+ if (retval < 0)
+ goto exit;
+ if (test_bit(ABS_MT_SLOT, dev->absbit)) {
+ int nslot = input_abs_get_max(dev, ABS_MT_SLOT) + 1;
+ input_mt_init_slots(dev, nslot);
+ } else if (test_bit(ABS_MT_POSITION_X, dev->absbit)) {
+ input_set_events_per_packet(dev, 60);
+ }
+ }
+
+ udev->state = UIST_SETUP_COMPLETE;
+ retval = count;
+
+ exit:
+ kfree(user_dev);
+ return retval;
+}
+
+static inline ssize_t uinput_inject_event(struct uinput_device *udev, const char __user *buffer, size_t count)
+{
+ struct input_event ev;
+
+ if (count < input_event_size())
+ return -EINVAL;
+
+ if (input_event_from_user(buffer, &ev))
+ return -EFAULT;
+
+ input_event(udev->dev, ev.type, ev.code, ev.value);
+
+ return input_event_size();
+}
+
+static ssize_t uinput_write(struct file *file, const char __user *buffer, size_t count, loff_t *ppos)
+{
+ struct uinput_device *udev = file->private_data;
+ int retval;
+
+ retval = mutex_lock_interruptible(&udev->mutex);
+ if (retval)
+ return retval;
+
+ retval = udev->state == UIST_CREATED ?
+ uinput_inject_event(udev, buffer, count) :
+ uinput_setup_device(udev, buffer, count);
+
+ mutex_unlock(&udev->mutex);
+
+ return retval;
+}
+
+static ssize_t uinput_read(struct file *file, char __user *buffer, size_t count, loff_t *ppos)
+{
+ struct uinput_device *udev = file->private_data;
+ int retval = 0;
+
+ if (udev->state != UIST_CREATED)
+ return -ENODEV;
+
+ if (udev->head == udev->tail && (file->f_flags & O_NONBLOCK))
+ return -EAGAIN;
+
+ retval = wait_event_interruptible(udev->waitq,
+ udev->head != udev->tail || udev->state != UIST_CREATED);
+ if (retval)
+ return retval;
+
+ retval = mutex_lock_interruptible(&udev->mutex);
+ if (retval)
+ return retval;
+
+ if (udev->state != UIST_CREATED) {
+ retval = -ENODEV;
+ goto out;
+ }
+
+ while (udev->head != udev->tail && retval + input_event_size() <= count) {
+ if (input_event_to_user(buffer + retval, &udev->buff[udev->tail])) {
+ retval = -EFAULT;
+ goto out;
+ }
+ udev->tail = (udev->tail + 1) % UINPUT_BUFFER_SIZE;
+ retval += input_event_size();
+ }
+
+ out:
+ mutex_unlock(&udev->mutex);
+
+ return retval;
+}
+
+static unsigned int uinput_poll(struct file *file, poll_table *wait)
+{
+ struct uinput_device *udev = file->private_data;
+
+ poll_wait(file, &udev->waitq, wait);
+
+ if (udev->head != udev->tail)
+ return POLLIN | POLLRDNORM;
+
+ return 0;
+}
+
+static int uinput_release(struct inode *inode, struct file *file)
+{
+ struct uinput_device *udev = file->private_data;
+
+ uinput_destroy_device(udev);
+ kfree(udev);
+
+ return 0;
+}
+
+#ifdef CONFIG_COMPAT
+struct uinput_ff_upload_compat {
+ int request_id;
+ int retval;
+ struct ff_effect_compat effect;
+ struct ff_effect_compat old;
+};
+
+static int uinput_ff_upload_to_user(char __user *buffer,
+ const struct uinput_ff_upload *ff_up)
+{
+ if (INPUT_COMPAT_TEST) {
+ struct uinput_ff_upload_compat ff_up_compat;
+
+ ff_up_compat.request_id = ff_up->request_id;
+ ff_up_compat.retval = ff_up->retval;
+ /*
+ * It so happens that the pointer that gives us the trouble
+ * is the last field in the structure. Since we don't support
+ * custom waveforms in uinput anyway we can just copy the whole
+ * thing (to the compat size) and ignore the pointer.
+ */
+ memcpy(&ff_up_compat.effect, &ff_up->effect,
+ sizeof(struct ff_effect_compat));
+ memcpy(&ff_up_compat.old, &ff_up->old,
+ sizeof(struct ff_effect_compat));
+
+ if (copy_to_user(buffer, &ff_up_compat,
+ sizeof(struct uinput_ff_upload_compat)))
+ return -EFAULT;
+ } else {
+ if (copy_to_user(buffer, ff_up,
+ sizeof(struct uinput_ff_upload)))
+ return -EFAULT;
+ }
+
+ return 0;
+}
+
+static int uinput_ff_upload_from_user(const char __user *buffer,
+ struct uinput_ff_upload *ff_up)
+{
+ if (INPUT_COMPAT_TEST) {
+ struct uinput_ff_upload_compat ff_up_compat;
+
+ if (copy_from_user(&ff_up_compat, buffer,
+ sizeof(struct uinput_ff_upload_compat)))
+ return -EFAULT;
+
+ ff_up->request_id = ff_up_compat.request_id;
+ ff_up->retval = ff_up_compat.retval;
+ memcpy(&ff_up->effect, &ff_up_compat.effect,
+ sizeof(struct ff_effect_compat));
+ memcpy(&ff_up->old, &ff_up_compat.old,
+ sizeof(struct ff_effect_compat));
+
+ } else {
+ if (copy_from_user(ff_up, buffer,
+ sizeof(struct uinput_ff_upload)))
+ return -EFAULT;
+ }
+
+ return 0;
+}
+
+#else
+
+static int uinput_ff_upload_to_user(char __user *buffer,
+ const struct uinput_ff_upload *ff_up)
+{
+ if (copy_to_user(buffer, ff_up, sizeof(struct uinput_ff_upload)))
+ return -EFAULT;
+
+ return 0;
+}
+
+static int uinput_ff_upload_from_user(const char __user *buffer,
+ struct uinput_ff_upload *ff_up)
+{
+ if (copy_from_user(ff_up, buffer, sizeof(struct uinput_ff_upload)))
+ return -EFAULT;
+
+ return 0;
+}
+
+#endif
+
+#define uinput_set_bit(_arg, _bit, _max) \
+({ \
+ int __ret = 0; \
+ if (udev->state == UIST_CREATED) \
+ __ret = -EINVAL; \
+ else if ((_arg) > (_max)) \
+ __ret = -EINVAL; \
+ else set_bit((_arg), udev->dev->_bit); \
+ __ret; \
+})
+
+static long uinput_ioctl_handler(struct file *file, unsigned int cmd,
+ unsigned long arg, void __user *p)
+{
+ int retval;
+ struct uinput_device *udev = file->private_data;
+ struct uinput_ff_upload ff_up;
+ struct uinput_ff_erase ff_erase;
+ struct uinput_request *req;
+ char *phys;
+
+ retval = mutex_lock_interruptible(&udev->mutex);
+ if (retval)
+ return retval;
+
+ if (!udev->dev) {
+ retval = uinput_allocate_device(udev);
+ if (retval)
+ goto out;
+ }
+
+ switch (cmd) {
+ case UI_DEV_CREATE:
+ retval = uinput_create_device(udev);
+ break;
+
+ case UI_DEV_DESTROY:
+ uinput_destroy_device(udev);
+ break;
+
+ case UI_SET_EVBIT:
+ retval = uinput_set_bit(arg, evbit, EV_MAX);
+ break;
+
+ case UI_SET_KEYBIT:
+ retval = uinput_set_bit(arg, keybit, KEY_MAX);
+ break;
+
+ case UI_SET_RELBIT:
+ retval = uinput_set_bit(arg, relbit, REL_MAX);
+ break;
+
+ case UI_SET_ABSBIT:
+ retval = uinput_set_bit(arg, absbit, ABS_MAX);
+ break;
+
+ case UI_SET_MSCBIT:
+ retval = uinput_set_bit(arg, mscbit, MSC_MAX);
+ break;
+
+ case UI_SET_LEDBIT:
+ retval = uinput_set_bit(arg, ledbit, LED_MAX);
+ break;
+
+ case UI_SET_SNDBIT:
+ retval = uinput_set_bit(arg, sndbit, SND_MAX);
+ break;
+
+ case UI_SET_FFBIT:
+ retval = uinput_set_bit(arg, ffbit, FF_MAX);
+ break;
+
+ case UI_SET_SWBIT:
+ retval = uinput_set_bit(arg, swbit, SW_MAX);
+ break;
+
+ case UI_SET_PROPBIT:
+ retval = uinput_set_bit(arg, propbit, INPUT_PROP_MAX);
+ break;
+
+ case UI_SET_PHYS:
+ if (udev->state == UIST_CREATED) {
+ retval = -EINVAL;
+ goto out;
+ }
+
+ phys = strndup_user(p, 1024);
+ if (IS_ERR(phys)) {
+ retval = PTR_ERR(phys);
+ goto out;
+ }
+
+ kfree(udev->dev->phys);
+ udev->dev->phys = phys;
+ break;
+
+ case UI_BEGIN_FF_UPLOAD:
+ retval = uinput_ff_upload_from_user(p, &ff_up);
+ if (retval)
+ break;
+
+ req = uinput_request_find(udev, ff_up.request_id);
+ if (!req || req->code != UI_FF_UPLOAD || !req->u.upload.effect) {
+ retval = -EINVAL;
+ break;
+ }
+
+ ff_up.retval = 0;
+ ff_up.effect = *req->u.upload.effect;
+ if (req->u.upload.old)
+ ff_up.old = *req->u.upload.old;
+ else
+ memset(&ff_up.old, 0, sizeof(struct ff_effect));
+
+ retval = uinput_ff_upload_to_user(p, &ff_up);
+ break;
+
+ case UI_BEGIN_FF_ERASE:
+ if (copy_from_user(&ff_erase, p, sizeof(ff_erase))) {
+ retval = -EFAULT;
+ break;
+ }
+
+ req = uinput_request_find(udev, ff_erase.request_id);
+ if (!req || req->code != UI_FF_ERASE) {
+ retval = -EINVAL;
+ break;
+ }
+
+ ff_erase.retval = 0;
+ ff_erase.effect_id = req->u.effect_id;
+ if (copy_to_user(p, &ff_erase, sizeof(ff_erase))) {
+ retval = -EFAULT;
+ break;
+ }
+
+ break;
+
+ case UI_END_FF_UPLOAD:
+ retval = uinput_ff_upload_from_user(p, &ff_up);
+ if (retval)
+ break;
+
+ req = uinput_request_find(udev, ff_up.request_id);
+ if (!req || req->code != UI_FF_UPLOAD ||
+ !req->u.upload.effect) {
+ retval = -EINVAL;
+ break;
+ }
+
+ req->retval = ff_up.retval;
+ uinput_request_done(udev, req);
+ break;
+
+ case UI_END_FF_ERASE:
+ if (copy_from_user(&ff_erase, p, sizeof(ff_erase))) {
+ retval = -EFAULT;
+ break;
+ }
+
+ req = uinput_request_find(udev, ff_erase.request_id);
+ if (!req || req->code != UI_FF_ERASE) {
+ retval = -EINVAL;
+ break;
+ }
+
+ req->retval = ff_erase.retval;
+ uinput_request_done(udev, req);
+ break;
+
+ default:
+ retval = -EINVAL;
+ }
+
+ out:
+ mutex_unlock(&udev->mutex);
+ return retval;
+}
+
+static long uinput_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
+{
+ return uinput_ioctl_handler(file, cmd, arg, (void __user *)arg);
+}
+
+#ifdef CONFIG_COMPAT
+static long uinput_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
+{
+ return uinput_ioctl_handler(file, cmd, arg, compat_ptr(arg));
+}
+#endif
+
+static const struct file_operations uinput_fops = {
+ .owner = THIS_MODULE,
+ .open = uinput_open,
+ .release = uinput_release,
+ .read = uinput_read,
+ .write = uinput_write,
+ .poll = uinput_poll,
+ .unlocked_ioctl = uinput_ioctl,
+#ifdef CONFIG_COMPAT
+ .compat_ioctl = uinput_compat_ioctl,
+#endif
+ .llseek = no_llseek,
+};
+
+static struct miscdevice uinput_misc = {
+ .fops = &uinput_fops,
+ .minor = UINPUT_MINOR,
+ .name = UINPUT_NAME,
+};
+MODULE_ALIAS_MISCDEV(UINPUT_MINOR);
+MODULE_ALIAS("devname:" UINPUT_NAME);
+
+static int __init uinput_init(void)
+{
+ return misc_register(&uinput_misc);
+}
+
+static void __exit uinput_exit(void)
+{
+ misc_deregister(&uinput_misc);
+}
+
+MODULE_AUTHOR("Aristeu Sergio Rozanski Filho");
+MODULE_DESCRIPTION("User level driver support for input subsystem");
+MODULE_LICENSE("GPL");
+MODULE_VERSION("0.3");
+
+module_init(uinput_init);
+module_exit(uinput_exit);
+
diff --git a/drivers/input/misc/wistron_btns.c b/drivers/input/misc/wistron_btns.c
new file mode 100644
index 0000000..52b4193
--- /dev/null
+++ b/drivers/input/misc/wistron_btns.c
@@ -0,0 +1,1389 @@
+/*
+ * Wistron laptop button driver
+ * Copyright (C) 2005 Miloslav Trmac <mitr@volny.cz>
+ * Copyright (C) 2005 Bernhard Rosenkraenzer <bero@arklinux.org>
+ * Copyright (C) 2005 Dmitry Torokhov <dtor@mail.ru>
+ *
+ * You can redistribute and/or modify this program under the terms of the
+ * GNU General Public License version 2 as published by the Free Software
+ * Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
+ * Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place Suite 330, Boston, MA 02111-1307, USA.
+ */
+#include <linux/io.h>
+#include <linux/dmi.h>
+#include <linux/init.h>
+#include <linux/input-polldev.h>
+#include <linux/input/sparse-keymap.h>
+#include <linux/interrupt.h>
+#include <linux/jiffies.h>
+#include <linux/kernel.h>
+#include <linux/mc146818rtc.h>
+#include <linux/module.h>
+#include <linux/preempt.h>
+#include <linux/string.h>
+#include <linux/slab.h>
+#include <linux/types.h>
+#include <linux/platform_device.h>
+#include <linux/leds.h>
+
+/* How often we poll keys - msecs */
+#define POLL_INTERVAL_DEFAULT 500 /* when idle */
+#define POLL_INTERVAL_BURST 100 /* when a key was recently pressed */
+
+/* BIOS subsystem IDs */
+#define WIFI 0x35
+#define BLUETOOTH 0x34
+#define MAIL_LED 0x31
+
+MODULE_AUTHOR("Miloslav Trmac <mitr@volny.cz>");
+MODULE_DESCRIPTION("Wistron laptop button driver");
+MODULE_LICENSE("GPL v2");
+MODULE_VERSION("0.3");
+
+static int force; /* = 0; */
+module_param(force, bool, 0);
+MODULE_PARM_DESC(force, "Load even if computer is not in database");
+
+static char *keymap_name; /* = NULL; */
+module_param_named(keymap, keymap_name, charp, 0);
+MODULE_PARM_DESC(keymap, "Keymap name, if it can't be autodetected [generic, 1557/MS2141]");
+
+static struct platform_device *wistron_device;
+
+ /* BIOS interface implementation */
+
+static void __iomem *bios_entry_point; /* BIOS routine entry point */
+static void __iomem *bios_code_map_base;
+static void __iomem *bios_data_map_base;
+
+static u8 cmos_address;
+
+struct regs {
+ u32 eax, ebx, ecx;
+};
+
+static void call_bios(struct regs *regs)
+{
+ unsigned long flags;
+
+ preempt_disable();
+ local_irq_save(flags);
+ asm volatile ("pushl %%ebp;"
+ "movl %7, %%ebp;"
+ "call *%6;"
+ "popl %%ebp"
+ : "=a" (regs->eax), "=b" (regs->ebx), "=c" (regs->ecx)
+ : "0" (regs->eax), "1" (regs->ebx), "2" (regs->ecx),
+ "m" (bios_entry_point), "m" (bios_data_map_base)
+ : "edx", "edi", "esi", "memory");
+ local_irq_restore(flags);
+ preempt_enable();
+}
+
+static ssize_t __init locate_wistron_bios(void __iomem *base)
+{
+ static unsigned char __initdata signature[] =
+ { 0x42, 0x21, 0x55, 0x30 };
+ ssize_t offset;
+
+ for (offset = 0; offset < 0x10000; offset += 0x10) {
+ if (check_signature(base + offset, signature,
+ sizeof(signature)) != 0)
+ return offset;
+ }
+ return -1;
+}
+
+static int __init map_bios(void)
+{
+ void __iomem *base;
+ ssize_t offset;
+ u32 entry_point;
+
+ base = ioremap(0xF0000, 0x10000); /* Can't fail */
+ offset = locate_wistron_bios(base);
+ if (offset < 0) {
+ printk(KERN_ERR "wistron_btns: BIOS entry point not found\n");
+ iounmap(base);
+ return -ENODEV;
+ }
+
+ entry_point = readl(base + offset + 5);
+ printk(KERN_DEBUG
+ "wistron_btns: BIOS signature found at %p, entry point %08X\n",
+ base + offset, entry_point);
+
+ if (entry_point >= 0xF0000) {
+ bios_code_map_base = base;
+ bios_entry_point = bios_code_map_base + (entry_point & 0xFFFF);
+ } else {
+ iounmap(base);
+ bios_code_map_base = ioremap(entry_point & ~0x3FFF, 0x4000);
+ if (bios_code_map_base == NULL) {
+ printk(KERN_ERR
+ "wistron_btns: Can't map BIOS code at %08X\n",
+ entry_point & ~0x3FFF);
+ goto err;
+ }
+ bios_entry_point = bios_code_map_base + (entry_point & 0x3FFF);
+ }
+ /* The Windows driver maps 0x10000 bytes, we keep only one page... */
+ bios_data_map_base = ioremap(0x400, 0xc00);
+ if (bios_data_map_base == NULL) {
+ printk(KERN_ERR "wistron_btns: Can't map BIOS data\n");
+ goto err_code;
+ }
+ return 0;
+
+err_code:
+ iounmap(bios_code_map_base);
+err:
+ return -ENOMEM;
+}
+
+static inline void unmap_bios(void)
+{
+ iounmap(bios_code_map_base);
+ iounmap(bios_data_map_base);
+}
+
+ /* BIOS calls */
+
+static u16 bios_pop_queue(void)
+{
+ struct regs regs;
+
+ memset(®s, 0, sizeof (regs));
+ regs.eax = 0x9610;
+ regs.ebx = 0x061C;
+ regs.ecx = 0x0000;
+ call_bios(®s);
+
+ return regs.eax;
+}
+
+static void __devinit bios_attach(void)
+{
+ struct regs regs;
+
+ memset(®s, 0, sizeof (regs));
+ regs.eax = 0x9610;
+ regs.ebx = 0x012E;
+ call_bios(®s);
+}
+
+static void bios_detach(void)
+{
+ struct regs regs;
+
+ memset(®s, 0, sizeof (regs));
+ regs.eax = 0x9610;
+ regs.ebx = 0x002E;
+ call_bios(®s);
+}
+
+static u8 __devinit bios_get_cmos_address(void)
+{
+ struct regs regs;
+
+ memset(®s, 0, sizeof (regs));
+ regs.eax = 0x9610;
+ regs.ebx = 0x051C;
+ call_bios(®s);
+
+ return regs.ecx;
+}
+
+static u16 __devinit bios_get_default_setting(u8 subsys)
+{
+ struct regs regs;
+
+ memset(®s, 0, sizeof (regs));
+ regs.eax = 0x9610;
+ regs.ebx = 0x0200 | subsys;
+ call_bios(®s);
+
+ return regs.eax;
+}
+
+static void bios_set_state(u8 subsys, int enable)
+{
+ struct regs regs;
+
+ memset(®s, 0, sizeof (regs));
+ regs.eax = 0x9610;
+ regs.ebx = (enable ? 0x0100 : 0x0000) | subsys;
+ call_bios(®s);
+}
+
+/* Hardware database */
+
+#define KE_WIFI (KE_LAST + 1)
+#define KE_BLUETOOTH (KE_LAST + 2)
+
+#define FE_MAIL_LED 0x01
+#define FE_WIFI_LED 0x02
+#define FE_UNTESTED 0x80
+
+static struct key_entry *keymap; /* = NULL; Current key map */
+static bool have_wifi;
+static bool have_bluetooth;
+static int leds_present; /* bitmask of leds present */
+
+static int __init dmi_matched(const struct dmi_system_id *dmi)
+{
+ const struct key_entry *key;
+
+ keymap = dmi->driver_data;
+ for (key = keymap; key->type != KE_END; key++) {
+ if (key->type == KE_WIFI)
+ have_wifi = true;
+ else if (key->type == KE_BLUETOOTH)
+ have_bluetooth = true;
+ }
+ leds_present = key->code & (FE_MAIL_LED | FE_WIFI_LED);
+
+ return 1;
+}
+
+static struct key_entry keymap_empty[] __initdata = {
+ { KE_END, 0 }
+};
+
+static struct key_entry keymap_fs_amilo_pro_v2000[] __initdata = {
+ { KE_KEY, 0x01, {KEY_HELP} },
+ { KE_KEY, 0x11, {KEY_PROG1} },
+ { KE_KEY, 0x12, {KEY_PROG2} },
+ { KE_WIFI, 0x30 },
+ { KE_KEY, 0x31, {KEY_MAIL} },
+ { KE_KEY, 0x36, {KEY_WWW} },
+ { KE_END, 0 }
+};
+
+static struct key_entry keymap_fs_amilo_pro_v3505[] __initdata = {
+ { KE_KEY, 0x01, {KEY_HELP} }, /* Fn+F1 */
+ { KE_KEY, 0x06, {KEY_DISPLAYTOGGLE} }, /* Fn+F4 */
+ { KE_BLUETOOTH, 0x30 }, /* Fn+F10 */
+ { KE_KEY, 0x31, {KEY_MAIL} }, /* mail button */
+ { KE_KEY, 0x36, {KEY_WWW} }, /* www button */
+ { KE_WIFI, 0x78 }, /* satellite dish button */
+ { KE_END, 0 }
+};
+
+static struct key_entry keymap_fujitsu_n3510[] __initdata = {
+ { KE_KEY, 0x11, {KEY_PROG1} },
+ { KE_KEY, 0x12, {KEY_PROG2} },
+ { KE_KEY, 0x36, {KEY_WWW} },
+ { KE_KEY, 0x31, {KEY_MAIL} },
+ { KE_KEY, 0x71, {KEY_STOPCD} },
+ { KE_KEY, 0x72, {KEY_PLAYPAUSE} },
+ { KE_KEY, 0x74, {KEY_REWIND} },
+ { KE_KEY, 0x78, {KEY_FORWARD} },
+ { KE_END, 0 }
+};
+
+static struct key_entry keymap_wistron_ms2111[] __initdata = {
+ { KE_KEY, 0x11, {KEY_PROG1} },
+ { KE_KEY, 0x12, {KEY_PROG2} },
+ { KE_KEY, 0x13, {KEY_PROG3} },
+ { KE_KEY, 0x31, {KEY_MAIL} },
+ { KE_KEY, 0x36, {KEY_WWW} },
+ { KE_END, FE_MAIL_LED }
+};
+
+static struct key_entry keymap_wistron_md40100[] __initdata = {
+ { KE_KEY, 0x01, {KEY_HELP} },
+ { KE_KEY, 0x02, {KEY_CONFIG} },
+ { KE_KEY, 0x31, {KEY_MAIL} },
+ { KE_KEY, 0x36, {KEY_WWW} },
+ { KE_KEY, 0x37, {KEY_DISPLAYTOGGLE} }, /* Display on/off */
+ { KE_END, FE_MAIL_LED | FE_WIFI_LED | FE_UNTESTED }
+};
+
+static struct key_entry keymap_wistron_ms2141[] __initdata = {
+ { KE_KEY, 0x11, {KEY_PROG1} },
+ { KE_KEY, 0x12, {KEY_PROG2} },
+ { KE_WIFI, 0x30 },
+ { KE_KEY, 0x22, {KEY_REWIND} },
+ { KE_KEY, 0x23, {KEY_FORWARD} },
+ { KE_KEY, 0x24, {KEY_PLAYPAUSE} },
+ { KE_KEY, 0x25, {KEY_STOPCD} },
+ { KE_KEY, 0x31, {KEY_MAIL} },
+ { KE_KEY, 0x36, {KEY_WWW} },
+ { KE_END, 0 }
+};
+
+static struct key_entry keymap_acer_aspire_1500[] __initdata = {
+ { KE_KEY, 0x01, {KEY_HELP} },
+ { KE_KEY, 0x03, {KEY_POWER} },
+ { KE_KEY, 0x11, {KEY_PROG1} },
+ { KE_KEY, 0x12, {KEY_PROG2} },
+ { KE_WIFI, 0x30 },
+ { KE_KEY, 0x31, {KEY_MAIL} },
+ { KE_KEY, 0x36, {KEY_WWW} },
+ { KE_KEY, 0x49, {KEY_CONFIG} },
+ { KE_BLUETOOTH, 0x44 },
+ { KE_END, FE_UNTESTED }
+};
+
+static struct key_entry keymap_acer_aspire_1600[] __initdata = {
+ { KE_KEY, 0x01, {KEY_HELP} },
+ { KE_KEY, 0x03, {KEY_POWER} },
+ { KE_KEY, 0x08, {KEY_MUTE} },
+ { KE_KEY, 0x11, {KEY_PROG1} },
+ { KE_KEY, 0x12, {KEY_PROG2} },
+ { KE_KEY, 0x13, {KEY_PROG3} },
+ { KE_KEY, 0x31, {KEY_MAIL} },
+ { KE_KEY, 0x36, {KEY_WWW} },
+ { KE_KEY, 0x49, {KEY_CONFIG} },
+ { KE_WIFI, 0x30 },
+ { KE_BLUETOOTH, 0x44 },
+ { KE_END, FE_MAIL_LED | FE_UNTESTED }
+};
+
+/* 3020 has been tested */
+static struct key_entry keymap_acer_aspire_5020[] __initdata = {
+ { KE_KEY, 0x01, {KEY_HELP} },
+ { KE_KEY, 0x03, {KEY_POWER} },
+ { KE_KEY, 0x05, {KEY_SWITCHVIDEOMODE} }, /* Display selection */
+ { KE_KEY, 0x11, {KEY_PROG1} },
+ { KE_KEY, 0x12, {KEY_PROG2} },
+ { KE_KEY, 0x31, {KEY_MAIL} },
+ { KE_KEY, 0x36, {KEY_WWW} },
+ { KE_KEY, 0x6a, {KEY_CONFIG} },
+ { KE_WIFI, 0x30 },
+ { KE_BLUETOOTH, 0x44 },
+ { KE_END, FE_MAIL_LED | FE_UNTESTED }
+};
+
+static struct key_entry keymap_acer_travelmate_2410[] __initdata = {
+ { KE_KEY, 0x01, {KEY_HELP} },
+ { KE_KEY, 0x6d, {KEY_POWER} },
+ { KE_KEY, 0x11, {KEY_PROG1} },
+ { KE_KEY, 0x12, {KEY_PROG2} },
+ { KE_KEY, 0x31, {KEY_MAIL} },
+ { KE_KEY, 0x36, {KEY_WWW} },
+ { KE_KEY, 0x6a, {KEY_CONFIG} },
+ { KE_WIFI, 0x30 },
+ { KE_BLUETOOTH, 0x44 },
+ { KE_END, FE_MAIL_LED | FE_UNTESTED }
+};
+
+static struct key_entry keymap_acer_travelmate_110[] __initdata = {
+ { KE_KEY, 0x01, {KEY_HELP} },
+ { KE_KEY, 0x02, {KEY_CONFIG} },
+ { KE_KEY, 0x03, {KEY_POWER} },
+ { KE_KEY, 0x08, {KEY_MUTE} },
+ { KE_KEY, 0x11, {KEY_PROG1} },
+ { KE_KEY, 0x12, {KEY_PROG2} },
+ { KE_KEY, 0x20, {KEY_VOLUMEUP} },
+ { KE_KEY, 0x21, {KEY_VOLUMEDOWN} },
+ { KE_KEY, 0x31, {KEY_MAIL} },
+ { KE_KEY, 0x36, {KEY_WWW} },
+ { KE_SW, 0x4a, {.sw = {SW_LID, 1}} }, /* lid close */
+ { KE_SW, 0x4b, {.sw = {SW_LID, 0}} }, /* lid open */
+ { KE_WIFI, 0x30 },
+ { KE_END, FE_MAIL_LED | FE_UNTESTED }
+};
+
+static struct key_entry keymap_acer_travelmate_300[] __initdata = {
+ { KE_KEY, 0x01, {KEY_HELP} },
+ { KE_KEY, 0x02, {KEY_CONFIG} },
+ { KE_KEY, 0x03, {KEY_POWER} },
+ { KE_KEY, 0x08, {KEY_MUTE} },
+ { KE_KEY, 0x11, {KEY_PROG1} },
+ { KE_KEY, 0x12, {KEY_PROG2} },
+ { KE_KEY, 0x20, {KEY_VOLUMEUP} },
+ { KE_KEY, 0x21, {KEY_VOLUMEDOWN} },
+ { KE_KEY, 0x31, {KEY_MAIL} },
+ { KE_KEY, 0x36, {KEY_WWW} },
+ { KE_WIFI, 0x30 },
+ { KE_BLUETOOTH, 0x44 },
+ { KE_END, FE_MAIL_LED | FE_UNTESTED }
+};
+
+static struct key_entry keymap_acer_travelmate_380[] __initdata = {
+ { KE_KEY, 0x01, {KEY_HELP} },
+ { KE_KEY, 0x02, {KEY_CONFIG} },
+ { KE_KEY, 0x03, {KEY_POWER} }, /* not 370 */
+ { KE_KEY, 0x11, {KEY_PROG1} },
+ { KE_KEY, 0x12, {KEY_PROG2} },
+ { KE_KEY, 0x13, {KEY_PROG3} },
+ { KE_KEY, 0x31, {KEY_MAIL} },
+ { KE_KEY, 0x36, {KEY_WWW} },
+ { KE_WIFI, 0x30 },
+ { KE_END, FE_MAIL_LED | FE_UNTESTED }
+};
+
+/* unusual map */
+static struct key_entry keymap_acer_travelmate_220[] __initdata = {
+ { KE_KEY, 0x01, {KEY_HELP} },
+ { KE_KEY, 0x02, {KEY_CONFIG} },
+ { KE_KEY, 0x11, {KEY_MAIL} },
+ { KE_KEY, 0x12, {KEY_WWW} },
+ { KE_KEY, 0x13, {KEY_PROG2} },
+ { KE_KEY, 0x31, {KEY_PROG1} },
+ { KE_END, FE_WIFI_LED | FE_UNTESTED }
+};
+
+static struct key_entry keymap_acer_travelmate_230[] __initdata = {
+ { KE_KEY, 0x01, {KEY_HELP} },
+ { KE_KEY, 0x02, {KEY_CONFIG} },
+ { KE_KEY, 0x11, {KEY_PROG1} },
+ { KE_KEY, 0x12, {KEY_PROG2} },
+ { KE_KEY, 0x31, {KEY_MAIL} },
+ { KE_KEY, 0x36, {KEY_WWW} },
+ { KE_END, FE_WIFI_LED | FE_UNTESTED }
+};
+
+static struct key_entry keymap_acer_travelmate_240[] __initdata = {
+ { KE_KEY, 0x01, {KEY_HELP} },
+ { KE_KEY, 0x02, {KEY_CONFIG} },
+ { KE_KEY, 0x03, {KEY_POWER} },
+ { KE_KEY, 0x08, {KEY_MUTE} },
+ { KE_KEY, 0x31, {KEY_MAIL} },
+ { KE_KEY, 0x36, {KEY_WWW} },
+ { KE_KEY, 0x11, {KEY_PROG1} },
+ { KE_KEY, 0x12, {KEY_PROG2} },
+ { KE_BLUETOOTH, 0x44 },
+ { KE_WIFI, 0x30 },
+ { KE_END, FE_UNTESTED }
+};
+
+static struct key_entry keymap_acer_travelmate_350[] __initdata = {
+ { KE_KEY, 0x01, {KEY_HELP} },
+ { KE_KEY, 0x02, {KEY_CONFIG} },
+ { KE_KEY, 0x11, {KEY_PROG1} },
+ { KE_KEY, 0x12, {KEY_PROG2} },
+ { KE_KEY, 0x13, {KEY_MAIL} },
+ { KE_KEY, 0x14, {KEY_PROG3} },
+ { KE_KEY, 0x15, {KEY_WWW} },
+ { KE_END, FE_MAIL_LED | FE_WIFI_LED | FE_UNTESTED }
+};
+
+static struct key_entry keymap_acer_travelmate_360[] __initdata = {
+ { KE_KEY, 0x01, {KEY_HELP} },
+ { KE_KEY, 0x02, {KEY_CONFIG} },
+ { KE_KEY, 0x11, {KEY_PROG1} },
+ { KE_KEY, 0x12, {KEY_PROG2} },
+ { KE_KEY, 0x13, {KEY_MAIL} },
+ { KE_KEY, 0x14, {KEY_PROG3} },
+ { KE_KEY, 0x15, {KEY_WWW} },
+ { KE_KEY, 0x40, {KEY_WLAN} },
+ { KE_END, FE_WIFI_LED | FE_UNTESTED } /* no mail led */
+};
+
+/* Wifi subsystem only activates the led. Therefore we need to pass
+ * wifi event as a normal key, then userspace can really change the wifi state.
+ * TODO we need to export led state to userspace (wifi and mail) */
+static struct key_entry keymap_acer_travelmate_610[] __initdata = {
+ { KE_KEY, 0x01, {KEY_HELP} },
+ { KE_KEY, 0x02, {KEY_CONFIG} },
+ { KE_KEY, 0x11, {KEY_PROG1} },
+ { KE_KEY, 0x12, {KEY_PROG2} },
+ { KE_KEY, 0x13, {KEY_PROG3} },
+ { KE_KEY, 0x14, {KEY_MAIL} },
+ { KE_KEY, 0x15, {KEY_WWW} },
+ { KE_KEY, 0x40, {KEY_WLAN} },
+ { KE_END, FE_MAIL_LED | FE_WIFI_LED }
+};
+
+static struct key_entry keymap_acer_travelmate_630[] __initdata = {
+ { KE_KEY, 0x01, {KEY_HELP} },
+ { KE_KEY, 0x02, {KEY_CONFIG} },
+ { KE_KEY, 0x03, {KEY_POWER} },
+ { KE_KEY, 0x08, {KEY_MUTE} }, /* not 620 */
+ { KE_KEY, 0x11, {KEY_PROG1} },
+ { KE_KEY, 0x12, {KEY_PROG2} },
+ { KE_KEY, 0x13, {KEY_PROG3} },
+ { KE_KEY, 0x20, {KEY_VOLUMEUP} },
+ { KE_KEY, 0x21, {KEY_VOLUMEDOWN} },
+ { KE_KEY, 0x31, {KEY_MAIL} },
+ { KE_KEY, 0x36, {KEY_WWW} },
+ { KE_WIFI, 0x30 },
+ { KE_END, FE_MAIL_LED | FE_UNTESTED }
+};
+
+static struct key_entry keymap_aopen_1559as[] __initdata = {
+ { KE_KEY, 0x01, {KEY_HELP} },
+ { KE_KEY, 0x06, {KEY_PROG3} },
+ { KE_KEY, 0x11, {KEY_PROG1} },
+ { KE_KEY, 0x12, {KEY_PROG2} },
+ { KE_WIFI, 0x30 },
+ { KE_KEY, 0x31, {KEY_MAIL} },
+ { KE_KEY, 0x36, {KEY_WWW} },
+ { KE_END, 0 },
+};
+
+static struct key_entry keymap_fs_amilo_d88x0[] __initdata = {
+ { KE_KEY, 0x01, {KEY_HELP} },
+ { KE_KEY, 0x08, {KEY_MUTE} },
+ { KE_KEY, 0x31, {KEY_MAIL} },
+ { KE_KEY, 0x36, {KEY_WWW} },
+ { KE_KEY, 0x11, {KEY_PROG1} },
+ { KE_KEY, 0x12, {KEY_PROG2} },
+ { KE_KEY, 0x13, {KEY_PROG3} },
+ { KE_END, FE_MAIL_LED | FE_WIFI_LED | FE_UNTESTED }
+};
+
+static struct key_entry keymap_wistron_md2900[] __initdata = {
+ { KE_KEY, 0x01, {KEY_HELP} },
+ { KE_KEY, 0x02, {KEY_CONFIG} },
+ { KE_KEY, 0x11, {KEY_PROG1} },
+ { KE_KEY, 0x12, {KEY_PROG2} },
+ { KE_KEY, 0x31, {KEY_MAIL} },
+ { KE_KEY, 0x36, {KEY_WWW} },
+ { KE_WIFI, 0x30 },
+ { KE_END, FE_MAIL_LED | FE_UNTESTED }
+};
+
+static struct key_entry keymap_wistron_md96500[] __initdata = {
+ { KE_KEY, 0x01, {KEY_HELP} },
+ { KE_KEY, 0x02, {KEY_CONFIG} },
+ { KE_KEY, 0x05, {KEY_SWITCHVIDEOMODE} }, /* Display selection */
+ { KE_KEY, 0x06, {KEY_DISPLAYTOGGLE} }, /* Display on/off */
+ { KE_KEY, 0x08, {KEY_MUTE} },
+ { KE_KEY, 0x11, {KEY_PROG1} },
+ { KE_KEY, 0x12, {KEY_PROG2} },
+ { KE_KEY, 0x20, {KEY_VOLUMEUP} },
+ { KE_KEY, 0x21, {KEY_VOLUMEDOWN} },
+ { KE_KEY, 0x22, {KEY_REWIND} },
+ { KE_KEY, 0x23, {KEY_FORWARD} },
+ { KE_KEY, 0x24, {KEY_PLAYPAUSE} },
+ { KE_KEY, 0x25, {KEY_STOPCD} },
+ { KE_KEY, 0x31, {KEY_MAIL} },
+ { KE_KEY, 0x36, {KEY_WWW} },
+ { KE_WIFI, 0x30 },
+ { KE_BLUETOOTH, 0x44 },
+ { KE_END, FE_UNTESTED }
+};
+
+static struct key_entry keymap_wistron_generic[] __initdata = {
+ { KE_KEY, 0x01, {KEY_HELP} },
+ { KE_KEY, 0x02, {KEY_CONFIG} },
+ { KE_KEY, 0x03, {KEY_POWER} },
+ { KE_KEY, 0x05, {KEY_SWITCHVIDEOMODE} }, /* Display selection */
+ { KE_KEY, 0x06, {KEY_DISPLAYTOGGLE} }, /* Display on/off */
+ { KE_KEY, 0x08, {KEY_MUTE} },
+ { KE_KEY, 0x11, {KEY_PROG1} },
+ { KE_KEY, 0x12, {KEY_PROG2} },
+ { KE_KEY, 0x13, {KEY_PROG3} },
+ { KE_KEY, 0x14, {KEY_MAIL} },
+ { KE_KEY, 0x15, {KEY_WWW} },
+ { KE_KEY, 0x20, {KEY_VOLUMEUP} },
+ { KE_KEY, 0x21, {KEY_VOLUMEDOWN} },
+ { KE_KEY, 0x22, {KEY_REWIND} },
+ { KE_KEY, 0x23, {KEY_FORWARD} },
+ { KE_KEY, 0x24, {KEY_PLAYPAUSE} },
+ { KE_KEY, 0x25, {KEY_STOPCD} },
+ { KE_KEY, 0x31, {KEY_MAIL} },
+ { KE_KEY, 0x36, {KEY_WWW} },
+ { KE_KEY, 0x37, {KEY_DISPLAYTOGGLE} }, /* Display on/off */
+ { KE_KEY, 0x40, {KEY_WLAN} },
+ { KE_KEY, 0x49, {KEY_CONFIG} },
+ { KE_SW, 0x4a, {.sw = {SW_LID, 1}} }, /* lid close */
+ { KE_SW, 0x4b, {.sw = {SW_LID, 0}} }, /* lid open */
+ { KE_KEY, 0x6a, {KEY_CONFIG} },
+ { KE_KEY, 0x6d, {KEY_POWER} },
+ { KE_KEY, 0x71, {KEY_STOPCD} },
+ { KE_KEY, 0x72, {KEY_PLAYPAUSE} },
+ { KE_KEY, 0x74, {KEY_REWIND} },
+ { KE_KEY, 0x78, {KEY_FORWARD} },
+ { KE_WIFI, 0x30 },
+ { KE_BLUETOOTH, 0x44 },
+ { KE_END, 0 }
+};
+
+static struct key_entry keymap_aopen_1557[] __initdata = {
+ { KE_KEY, 0x01, {KEY_HELP} },
+ { KE_KEY, 0x11, {KEY_PROG1} },
+ { KE_KEY, 0x12, {KEY_PROG2} },
+ { KE_WIFI, 0x30 },
+ { KE_KEY, 0x22, {KEY_REWIND} },
+ { KE_KEY, 0x23, {KEY_FORWARD} },
+ { KE_KEY, 0x24, {KEY_PLAYPAUSE} },
+ { KE_KEY, 0x25, {KEY_STOPCD} },
+ { KE_KEY, 0x31, {KEY_MAIL} },
+ { KE_KEY, 0x36, {KEY_WWW} },
+ { KE_END, 0 }
+};
+
+static struct key_entry keymap_prestigio[] __initdata = {
+ { KE_KEY, 0x11, {KEY_PROG1} },
+ { KE_KEY, 0x12, {KEY_PROG2} },
+ { KE_WIFI, 0x30 },
+ { KE_KEY, 0x22, {KEY_REWIND} },
+ { KE_KEY, 0x23, {KEY_FORWARD} },
+ { KE_KEY, 0x24, {KEY_PLAYPAUSE} },
+ { KE_KEY, 0x25, {KEY_STOPCD} },
+ { KE_KEY, 0x31, {KEY_MAIL} },
+ { KE_KEY, 0x36, {KEY_WWW} },
+ { KE_END, 0 }
+};
+
+
+/*
+ * If your machine is not here (which is currently rather likely), please send
+ * a list of buttons and their key codes (reported when loading this module
+ * with force=1) and the output of dmidecode to $MODULE_AUTHOR.
+ */
+static const struct dmi_system_id __initconst dmi_ids[] = {
+ {
+ /* Fujitsu-Siemens Amilo Pro V2000 */
+ .callback = dmi_matched,
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pro V2000"),
+ },
+ .driver_data = keymap_fs_amilo_pro_v2000
+ },
+ {
+ /* Fujitsu-Siemens Amilo Pro Edition V3505 */
+ .callback = dmi_matched,
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pro Edition V3505"),
+ },
+ .driver_data = keymap_fs_amilo_pro_v3505
+ },
+ {
+ /* Fujitsu-Siemens Amilo M7400 */
+ .callback = dmi_matched,
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "AMILO M "),
+ },
+ .driver_data = keymap_fs_amilo_pro_v2000
+ },
+ {
+ /* Maxdata Pro 7000 DX */
+ .callback = dmi_matched,
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "MAXDATA"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Pro 7000"),
+ },
+ .driver_data = keymap_fs_amilo_pro_v2000
+ },
+ {
+ /* Fujitsu N3510 */
+ .callback = dmi_matched,
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "N3510"),
+ },
+ .driver_data = keymap_fujitsu_n3510
+ },
+ {
+ /* Acer Aspire 1500 */
+ .callback = dmi_matched,
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 1500"),
+ },
+ .driver_data = keymap_acer_aspire_1500
+ },
+ {
+ /* Acer Aspire 1600 */
+ .callback = dmi_matched,
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 1600"),
+ },
+ .driver_data = keymap_acer_aspire_1600
+ },
+ {
+ /* Acer Aspire 3020 */
+ .callback = dmi_matched,
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3020"),
+ },
+ .driver_data = keymap_acer_aspire_5020
+ },
+ {
+ /* Acer Aspire 5020 */
+ .callback = dmi_matched,
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5020"),
+ },
+ .driver_data = keymap_acer_aspire_5020
+ },
+ {
+ /* Acer TravelMate 2100 */
+ .callback = dmi_matched,
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 2100"),
+ },
+ .driver_data = keymap_acer_aspire_5020
+ },
+ {
+ /* Acer TravelMate 2410 */
+ .callback = dmi_matched,
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 2410"),
+ },
+ .driver_data = keymap_acer_travelmate_2410
+ },
+ {
+ /* Acer TravelMate C300 */
+ .callback = dmi_matched,
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate C300"),
+ },
+ .driver_data = keymap_acer_travelmate_300
+ },
+ {
+ /* Acer TravelMate C100 */
+ .callback = dmi_matched,
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate C100"),
+ },
+ .driver_data = keymap_acer_travelmate_300
+ },
+ {
+ /* Acer TravelMate C110 */
+ .callback = dmi_matched,
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate C110"),
+ },
+ .driver_data = keymap_acer_travelmate_110
+ },
+ {
+ /* Acer TravelMate 380 */
+ .callback = dmi_matched,
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 380"),
+ },
+ .driver_data = keymap_acer_travelmate_380
+ },
+ {
+ /* Acer TravelMate 370 */
+ .callback = dmi_matched,
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 370"),
+ },
+ .driver_data = keymap_acer_travelmate_380 /* keyboard minus 1 key */
+ },
+ {
+ /* Acer TravelMate 220 */
+ .callback = dmi_matched,
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 220"),
+ },
+ .driver_data = keymap_acer_travelmate_220
+ },
+ {
+ /* Acer TravelMate 260 */
+ .callback = dmi_matched,
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 260"),
+ },
+ .driver_data = keymap_acer_travelmate_220
+ },
+ {
+ /* Acer TravelMate 230 */
+ .callback = dmi_matched,
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 230"),
+ /* acerhk looks for "TravelMate F4..." ?! */
+ },
+ .driver_data = keymap_acer_travelmate_230
+ },
+ {
+ /* Acer TravelMate 280 */
+ .callback = dmi_matched,
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 280"),
+ },
+ .driver_data = keymap_acer_travelmate_230
+ },
+ {
+ /* Acer TravelMate 240 */
+ .callback = dmi_matched,
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 240"),
+ },
+ .driver_data = keymap_acer_travelmate_240
+ },
+ {
+ /* Acer TravelMate 250 */
+ .callback = dmi_matched,
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 250"),
+ },
+ .driver_data = keymap_acer_travelmate_240
+ },
+ {
+ /* Acer TravelMate 2424NWXCi */
+ .callback = dmi_matched,
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 2420"),
+ },
+ .driver_data = keymap_acer_travelmate_240
+ },
+ {
+ /* Acer TravelMate 350 */
+ .callback = dmi_matched,
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 350"),
+ },
+ .driver_data = keymap_acer_travelmate_350
+ },
+ {
+ /* Acer TravelMate 360 */
+ .callback = dmi_matched,
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 360"),
+ },
+ .driver_data = keymap_acer_travelmate_360
+ },
+ {
+ /* Acer TravelMate 610 */
+ .callback = dmi_matched,
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "ACER"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 610"),
+ },
+ .driver_data = keymap_acer_travelmate_610
+ },
+ {
+ /* Acer TravelMate 620 */
+ .callback = dmi_matched,
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 620"),
+ },
+ .driver_data = keymap_acer_travelmate_630
+ },
+ {
+ /* Acer TravelMate 630 */
+ .callback = dmi_matched,
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 630"),
+ },
+ .driver_data = keymap_acer_travelmate_630
+ },
+ {
+ /* AOpen 1559AS */
+ .callback = dmi_matched,
+ .matches = {
+ DMI_MATCH(DMI_PRODUCT_NAME, "E2U"),
+ DMI_MATCH(DMI_BOARD_NAME, "E2U"),
+ },
+ .driver_data = keymap_aopen_1559as
+ },
+ {
+ /* Medion MD 9783 */
+ .callback = dmi_matched,
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "MEDIONNB"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "MD 9783"),
+ },
+ .driver_data = keymap_wistron_ms2111
+ },
+ {
+ /* Medion MD 40100 */
+ .callback = dmi_matched,
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "MEDIONNB"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "WID2000"),
+ },
+ .driver_data = keymap_wistron_md40100
+ },
+ {
+ /* Medion MD 2900 */
+ .callback = dmi_matched,
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "MEDIONNB"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "WIM 2000"),
+ },
+ .driver_data = keymap_wistron_md2900
+ },
+ {
+ /* Medion MD 42200 */
+ .callback = dmi_matched,
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Medion"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "WIM 2030"),
+ },
+ .driver_data = keymap_fs_amilo_pro_v2000
+ },
+ {
+ /* Medion MD 96500 */
+ .callback = dmi_matched,
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "MEDIONPC"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "WIM 2040"),
+ },
+ .driver_data = keymap_wistron_md96500
+ },
+ {
+ /* Medion MD 95400 */
+ .callback = dmi_matched,
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "MEDIONPC"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "WIM 2050"),
+ },
+ .driver_data = keymap_wistron_md96500
+ },
+ {
+ /* Fujitsu Siemens Amilo D7820 */
+ .callback = dmi_matched,
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"), /* not sure */
+ DMI_MATCH(DMI_PRODUCT_NAME, "Amilo D"),
+ },
+ .driver_data = keymap_fs_amilo_d88x0
+ },
+ {
+ /* Fujitsu Siemens Amilo D88x0 */
+ .callback = dmi_matched,
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "AMILO D"),
+ },
+ .driver_data = keymap_fs_amilo_d88x0
+ },
+ { NULL, }
+};
+
+/* Copy the good keymap, as the original ones are free'd */
+static int __init copy_keymap(void)
+{
+ const struct key_entry *key;
+ struct key_entry *new_keymap;
+ unsigned int length = 1;
+
+ for (key = keymap; key->type != KE_END; key++)
+ length++;
+
+ new_keymap = kmemdup(keymap, length * sizeof(struct key_entry),
+ GFP_KERNEL);
+ if (!new_keymap)
+ return -ENOMEM;
+
+ keymap = new_keymap;
+
+ return 0;
+}
+
+static int __init select_keymap(void)
+{
+ dmi_check_system(dmi_ids);
+ if (keymap_name != NULL) {
+ if (strcmp (keymap_name, "1557/MS2141") == 0)
+ keymap = keymap_wistron_ms2141;
+ else if (strcmp (keymap_name, "aopen1557") == 0)
+ keymap = keymap_aopen_1557;
+ else if (strcmp (keymap_name, "prestigio") == 0)
+ keymap = keymap_prestigio;
+ else if (strcmp (keymap_name, "generic") == 0)
+ keymap = keymap_wistron_generic;
+ else {
+ printk(KERN_ERR "wistron_btns: Keymap unknown\n");
+ return -EINVAL;
+ }
+ }
+ if (keymap == NULL) {
+ if (!force) {
+ printk(KERN_ERR "wistron_btns: System unknown\n");
+ return -ENODEV;
+ }
+ keymap = keymap_empty;
+ }
+
+ return copy_keymap();
+}
+
+ /* Input layer interface */
+
+static struct input_polled_dev *wistron_idev;
+static unsigned long jiffies_last_press;
+static bool wifi_enabled;
+static bool bluetooth_enabled;
+
+ /* led management */
+static void wistron_mail_led_set(struct led_classdev *led_cdev,
+ enum led_brightness value)
+{
+ bios_set_state(MAIL_LED, (value != LED_OFF) ? 1 : 0);
+}
+
+/* same as setting up wifi card, but for laptops on which the led is managed */
+static void wistron_wifi_led_set(struct led_classdev *led_cdev,
+ enum led_brightness value)
+{
+ bios_set_state(WIFI, (value != LED_OFF) ? 1 : 0);
+}
+
+static struct led_classdev wistron_mail_led = {
+ .name = "wistron:green:mail",
+ .brightness_set = wistron_mail_led_set,
+};
+
+static struct led_classdev wistron_wifi_led = {
+ .name = "wistron:red:wifi",
+ .brightness_set = wistron_wifi_led_set,
+};
+
+static void __devinit wistron_led_init(struct device *parent)
+{
+ if (leds_present & FE_WIFI_LED) {
+ u16 wifi = bios_get_default_setting(WIFI);
+ if (wifi & 1) {
+ wistron_wifi_led.brightness = (wifi & 2) ? LED_FULL : LED_OFF;
+ if (led_classdev_register(parent, &wistron_wifi_led))
+ leds_present &= ~FE_WIFI_LED;
+ else
+ bios_set_state(WIFI, wistron_wifi_led.brightness);
+
+ } else
+ leds_present &= ~FE_WIFI_LED;
+ }
+
+ if (leds_present & FE_MAIL_LED) {
+ /* bios_get_default_setting(MAIL) always retuns 0, so just turn the led off */
+ wistron_mail_led.brightness = LED_OFF;
+ if (led_classdev_register(parent, &wistron_mail_led))
+ leds_present &= ~FE_MAIL_LED;
+ else
+ bios_set_state(MAIL_LED, wistron_mail_led.brightness);
+ }
+}
+
+static void __devexit wistron_led_remove(void)
+{
+ if (leds_present & FE_MAIL_LED)
+ led_classdev_unregister(&wistron_mail_led);
+
+ if (leds_present & FE_WIFI_LED)
+ led_classdev_unregister(&wistron_wifi_led);
+}
+
+static inline void wistron_led_suspend(void)
+{
+ if (leds_present & FE_MAIL_LED)
+ led_classdev_suspend(&wistron_mail_led);
+
+ if (leds_present & FE_WIFI_LED)
+ led_classdev_suspend(&wistron_wifi_led);
+}
+
+static inline void wistron_led_resume(void)
+{
+ if (leds_present & FE_MAIL_LED)
+ led_classdev_resume(&wistron_mail_led);
+
+ if (leds_present & FE_WIFI_LED)
+ led_classdev_resume(&wistron_wifi_led);
+}
+
+static void handle_key(u8 code)
+{
+ const struct key_entry *key =
+ sparse_keymap_entry_from_scancode(wistron_idev->input, code);
+
+ if (key) {
+ switch (key->type) {
+ case KE_WIFI:
+ if (have_wifi) {
+ wifi_enabled = !wifi_enabled;
+ bios_set_state(WIFI, wifi_enabled);
+ }
+ break;
+
+ case KE_BLUETOOTH:
+ if (have_bluetooth) {
+ bluetooth_enabled = !bluetooth_enabled;
+ bios_set_state(BLUETOOTH, bluetooth_enabled);
+ }
+ break;
+
+ default:
+ sparse_keymap_report_entry(wistron_idev->input,
+ key, 1, true);
+ break;
+ }
+ jiffies_last_press = jiffies;
+ } else
+ printk(KERN_NOTICE
+ "wistron_btns: Unknown key code %02X\n", code);
+}
+
+static void poll_bios(bool discard)
+{
+ u8 qlen;
+ u16 val;
+
+ for (;;) {
+ qlen = CMOS_READ(cmos_address);
+ if (qlen == 0)
+ break;
+ val = bios_pop_queue();
+ if (val != 0 && !discard)
+ handle_key((u8)val);
+ }
+}
+
+static void wistron_flush(struct input_polled_dev *dev)
+{
+ /* Flush stale event queue */
+ poll_bios(true);
+}
+
+static void wistron_poll(struct input_polled_dev *dev)
+{
+ poll_bios(false);
+
+ /* Increase poll frequency if user is currently pressing keys (< 2s ago) */
+ if (time_before(jiffies, jiffies_last_press + 2 * HZ))
+ dev->poll_interval = POLL_INTERVAL_BURST;
+ else
+ dev->poll_interval = POLL_INTERVAL_DEFAULT;
+}
+
+static int __devinit wistron_setup_keymap(struct input_dev *dev,
+ struct key_entry *entry)
+{
+ switch (entry->type) {
+
+ /* if wifi or bluetooth are not available, create normal keys */
+ case KE_WIFI:
+ if (!have_wifi) {
+ entry->type = KE_KEY;
+ entry->keycode = KEY_WLAN;
+ }
+ break;
+
+ case KE_BLUETOOTH:
+ if (!have_bluetooth) {
+ entry->type = KE_KEY;
+ entry->keycode = KEY_BLUETOOTH;
+ }
+ break;
+
+ case KE_END:
+ if (entry->code & FE_UNTESTED)
+ printk(KERN_WARNING "Untested laptop multimedia keys, "
+ "please report success or failure to "
+ "eric.piel@tremplin-utc.net\n");
+ break;
+ }
+
+ return 0;
+}
+
+static int __devinit setup_input_dev(void)
+{
+ struct input_dev *input_dev;
+ int error;
+
+ wistron_idev = input_allocate_polled_device();
+ if (!wistron_idev)
+ return -ENOMEM;
+
+ wistron_idev->open = wistron_flush;
+ wistron_idev->poll = wistron_poll;
+ wistron_idev->poll_interval = POLL_INTERVAL_DEFAULT;
+
+ input_dev = wistron_idev->input;
+ input_dev->name = "Wistron laptop buttons";
+ input_dev->phys = "wistron/input0";
+ input_dev->id.bustype = BUS_HOST;
+ input_dev->dev.parent = &wistron_device->dev;
+
+ error = sparse_keymap_setup(input_dev, keymap, wistron_setup_keymap);
+ if (error)
+ goto err_free_dev;
+
+ error = input_register_polled_device(wistron_idev);
+ if (error)
+ goto err_free_keymap;
+
+ return 0;
+
+ err_free_keymap:
+ sparse_keymap_free(input_dev);
+ err_free_dev:
+ input_free_polled_device(wistron_idev);
+ return error;
+}
+
+/* Driver core */
+
+static int __devinit wistron_probe(struct platform_device *dev)
+{
+ int err;
+
+ bios_attach();
+ cmos_address = bios_get_cmos_address();
+
+ if (have_wifi) {
+ u16 wifi = bios_get_default_setting(WIFI);
+ if (wifi & 1)
+ wifi_enabled = wifi & 2;
+ else
+ have_wifi = 0;
+
+ if (have_wifi)
+ bios_set_state(WIFI, wifi_enabled);
+ }
+
+ if (have_bluetooth) {
+ u16 bt = bios_get_default_setting(BLUETOOTH);
+ if (bt & 1)
+ bluetooth_enabled = bt & 2;
+ else
+ have_bluetooth = false;
+
+ if (have_bluetooth)
+ bios_set_state(BLUETOOTH, bluetooth_enabled);
+ }
+
+ wistron_led_init(&dev->dev);
+
+ err = setup_input_dev();
+ if (err) {
+ bios_detach();
+ return err;
+ }
+
+ return 0;
+}
+
+static int __devexit wistron_remove(struct platform_device *dev)
+{
+ wistron_led_remove();
+ input_unregister_polled_device(wistron_idev);
+ sparse_keymap_free(wistron_idev->input);
+ input_free_polled_device(wistron_idev);
+ bios_detach();
+
+ return 0;
+}
+
+#ifdef CONFIG_PM
+static int wistron_suspend(struct device *dev)
+{
+ if (have_wifi)
+ bios_set_state(WIFI, 0);
+
+ if (have_bluetooth)
+ bios_set_state(BLUETOOTH, 0);
+
+ wistron_led_suspend();
+
+ return 0;
+}
+
+static int wistron_resume(struct device *dev)
+{
+ if (have_wifi)
+ bios_set_state(WIFI, wifi_enabled);
+
+ if (have_bluetooth)
+ bios_set_state(BLUETOOTH, bluetooth_enabled);
+
+ wistron_led_resume();
+
+ poll_bios(true);
+
+ return 0;
+}
+
+static const struct dev_pm_ops wistron_pm_ops = {
+ .suspend = wistron_suspend,
+ .resume = wistron_resume,
+ .poweroff = wistron_suspend,
+ .restore = wistron_resume,
+};
+#endif
+
+static struct platform_driver wistron_driver = {
+ .driver = {
+ .name = "wistron-bios",
+ .owner = THIS_MODULE,
+#ifdef CONFIG_PM
+ .pm = &wistron_pm_ops,
+#endif
+ },
+ .probe = wistron_probe,
+ .remove = __devexit_p(wistron_remove),
+};
+
+static int __init wb_module_init(void)
+{
+ int err;
+
+ err = select_keymap();
+ if (err)
+ return err;
+
+ err = map_bios();
+ if (err)
+ goto err_free_keymap;
+
+ err = platform_driver_register(&wistron_driver);
+ if (err)
+ goto err_unmap_bios;
+
+ wistron_device = platform_device_alloc("wistron-bios", -1);
+ if (!wistron_device) {
+ err = -ENOMEM;
+ goto err_unregister_driver;
+ }
+
+ err = platform_device_add(wistron_device);
+ if (err)
+ goto err_free_device;
+
+ return 0;
+
+ err_free_device:
+ platform_device_put(wistron_device);
+ err_unregister_driver:
+ platform_driver_unregister(&wistron_driver);
+ err_unmap_bios:
+ unmap_bios();
+ err_free_keymap:
+ kfree(keymap);
+
+ return err;
+}
+
+static void __exit wb_module_exit(void)
+{
+ platform_device_unregister(wistron_device);
+ platform_driver_unregister(&wistron_driver);
+ unmap_bios();
+ kfree(keymap);
+}
+
+module_init(wb_module_init);
+module_exit(wb_module_exit);
diff --git a/drivers/input/misc/wm831x-on.c b/drivers/input/misc/wm831x-on.c
new file mode 100644
index 0000000..c3d7ba5
--- /dev/null
+++ b/drivers/input/misc/wm831x-on.c
@@ -0,0 +1,165 @@
+/**
+ * wm831x-on.c - WM831X ON pin driver
+ *
+ * Copyright (C) 2009 Wolfson Microelectronics plc
+ *
+ * This file is subject to the terms and conditions of the GNU General
+ * Public License. See the file "COPYING" in the main directory of this
+ * archive for more details.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/input.h>
+#include <linux/interrupt.h>
+#include <linux/platform_device.h>
+#include <linux/workqueue.h>
+#include <linux/mfd/wm831x/core.h>
+
+struct wm831x_on {
+ struct input_dev *dev;
+ struct delayed_work work;
+ struct wm831x *wm831x;
+};
+
+/*
+ * The chip gives us an interrupt when the ON pin is asserted but we
+ * then need to poll to see when the pin is deasserted.
+ */
+static void wm831x_poll_on(struct work_struct *work)
+{
+ struct wm831x_on *wm831x_on = container_of(work, struct wm831x_on,
+ work.work);
+ struct wm831x *wm831x = wm831x_on->wm831x;
+ int poll, ret;
+
+ ret = wm831x_reg_read(wm831x, WM831X_ON_PIN_CONTROL);
+ if (ret >= 0) {
+ poll = !(ret & WM831X_ON_PIN_STS);
+
+ input_report_key(wm831x_on->dev, KEY_POWER, poll);
+ input_sync(wm831x_on->dev);
+ } else {
+ dev_err(wm831x->dev, "Failed to read ON status: %d\n", ret);
+ poll = 1;
+ }
+
+ if (poll)
+ schedule_delayed_work(&wm831x_on->work, 100);
+}
+
+static irqreturn_t wm831x_on_irq(int irq, void *data)
+{
+ struct wm831x_on *wm831x_on = data;
+
+ schedule_delayed_work(&wm831x_on->work, 0);
+
+ return IRQ_HANDLED;
+}
+
+static int __devinit wm831x_on_probe(struct platform_device *pdev)
+{
+ struct wm831x *wm831x = dev_get_drvdata(pdev->dev.parent);
+ struct wm831x_on *wm831x_on;
+ int irq = platform_get_irq(pdev, 0);
+ int ret;
+
+ wm831x_on = kzalloc(sizeof(struct wm831x_on), GFP_KERNEL);
+ if (!wm831x_on) {
+ dev_err(&pdev->dev, "Can't allocate data\n");
+ return -ENOMEM;
+ }
+
+ wm831x_on->wm831x = wm831x;
+ INIT_DELAYED_WORK(&wm831x_on->work, wm831x_poll_on);
+
+ wm831x_on->dev = input_allocate_device();
+ if (!wm831x_on->dev) {
+ dev_err(&pdev->dev, "Can't allocate input dev\n");
+ ret = -ENOMEM;
+ goto err;
+ }
+
+ wm831x_on->dev->evbit[0] = BIT_MASK(EV_KEY);
+ wm831x_on->dev->keybit[BIT_WORD(KEY_POWER)] = BIT_MASK(KEY_POWER);
+ wm831x_on->dev->name = "wm831x_on";
+ wm831x_on->dev->phys = "wm831x_on/input0";
+ wm831x_on->dev->dev.parent = &pdev->dev;
+
+ ret = request_threaded_irq(irq, NULL, wm831x_on_irq,
+ IRQF_TRIGGER_RISING, "wm831x_on",
+ wm831x_on);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "Unable to request IRQ: %d\n", ret);
+ goto err_input_dev;
+ }
+ ret = input_register_device(wm831x_on->dev);
+ if (ret) {
+ dev_dbg(&pdev->dev, "Can't register input device: %d\n", ret);
+ goto err_irq;
+ }
+
+ platform_set_drvdata(pdev, wm831x_on);
+
+ return 0;
+
+err_irq:
+ free_irq(irq, wm831x_on);
+err_input_dev:
+ input_free_device(wm831x_on->dev);
+err:
+ kfree(wm831x_on);
+ return ret;
+}
+
+static int __devexit wm831x_on_remove(struct platform_device *pdev)
+{
+ struct wm831x_on *wm831x_on = platform_get_drvdata(pdev);
+ int irq = platform_get_irq(pdev, 0);
+
+ free_irq(irq, wm831x_on);
+ cancel_delayed_work_sync(&wm831x_on->work);
+ input_unregister_device(wm831x_on->dev);
+ kfree(wm831x_on);
+
+ return 0;
+}
+
+static struct platform_driver wm831x_on_driver = {
+ .probe = wm831x_on_probe,
+ .remove = __devexit_p(wm831x_on_remove),
+ .driver = {
+ .name = "wm831x-on",
+ .owner = THIS_MODULE,
+ },
+};
+
+static int __init wm831x_on_init(void)
+{
+ return platform_driver_register(&wm831x_on_driver);
+}
+module_init(wm831x_on_init);
+
+static void __exit wm831x_on_exit(void)
+{
+ platform_driver_unregister(&wm831x_on_driver);
+}
+module_exit(wm831x_on_exit);
+
+MODULE_ALIAS("platform:wm831x-on");
+MODULE_DESCRIPTION("WM831x ON pin");
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
+
diff --git a/drivers/input/misc/xen-kbdfront.c b/drivers/input/misc/xen-kbdfront.c
new file mode 100644
index 0000000..ad2e51c
--- /dev/null
+++ b/drivers/input/misc/xen-kbdfront.c
@@ -0,0 +1,396 @@
+/*
+ * Xen para-virtual input device
+ *
+ * Copyright (C) 2005 Anthony Liguori <aliguori@us.ibm.com>
+ * Copyright (C) 2006-2008 Red Hat, Inc., Markus Armbruster <armbru@redhat.com>
+ *
+ * Based on linux/drivers/input/mouse/sermouse.c
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file COPYING in the main directory of this archive for
+ * more details.
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/module.h>
+#include <linux/input.h>
+#include <linux/slab.h>
+
+#include <asm/xen/hypervisor.h>
+
+#include <xen/xen.h>
+#include <xen/events.h>
+#include <xen/page.h>
+#include <xen/grant_table.h>
+#include <xen/interface/grant_table.h>
+#include <xen/interface/io/fbif.h>
+#include <xen/interface/io/kbdif.h>
+#include <xen/xenbus.h>
+
+struct xenkbd_info {
+ struct input_dev *kbd;
+ struct input_dev *ptr;
+ struct xenkbd_page *page;
+ int gref;
+ int irq;
+ struct xenbus_device *xbdev;
+ char phys[32];
+};
+
+static int xenkbd_remove(struct xenbus_device *);
+static int xenkbd_connect_backend(struct xenbus_device *, struct xenkbd_info *);
+static void xenkbd_disconnect_backend(struct xenkbd_info *);
+
+/*
+ * Note: if you need to send out events, see xenfb_do_update() for how
+ * to do that.
+ */
+
+static irqreturn_t input_handler(int rq, void *dev_id)
+{
+ struct xenkbd_info *info = dev_id;
+ struct xenkbd_page *page = info->page;
+ __u32 cons, prod;
+
+ prod = page->in_prod;
+ if (prod == page->in_cons)
+ return IRQ_HANDLED;
+ rmb(); /* ensure we see ring contents up to prod */
+ for (cons = page->in_cons; cons != prod; cons++) {
+ union xenkbd_in_event *event;
+ struct input_dev *dev;
+ event = &XENKBD_IN_RING_REF(page, cons);
+
+ dev = info->ptr;
+ switch (event->type) {
+ case XENKBD_TYPE_MOTION:
+ input_report_rel(dev, REL_X, event->motion.rel_x);
+ input_report_rel(dev, REL_Y, event->motion.rel_y);
+ if (event->motion.rel_z)
+ input_report_rel(dev, REL_WHEEL,
+ -event->motion.rel_z);
+ break;
+ case XENKBD_TYPE_KEY:
+ dev = NULL;
+ if (test_bit(event->key.keycode, info->kbd->keybit))
+ dev = info->kbd;
+ if (test_bit(event->key.keycode, info->ptr->keybit))
+ dev = info->ptr;
+ if (dev)
+ input_report_key(dev, event->key.keycode,
+ event->key.pressed);
+ else
+ pr_warning("unhandled keycode 0x%x\n",
+ event->key.keycode);
+ break;
+ case XENKBD_TYPE_POS:
+ input_report_abs(dev, ABS_X, event->pos.abs_x);
+ input_report_abs(dev, ABS_Y, event->pos.abs_y);
+ if (event->pos.rel_z)
+ input_report_rel(dev, REL_WHEEL,
+ -event->pos.rel_z);
+ break;
+ }
+ if (dev)
+ input_sync(dev);
+ }
+ mb(); /* ensure we got ring contents */
+ page->in_cons = cons;
+ notify_remote_via_irq(info->irq);
+
+ return IRQ_HANDLED;
+}
+
+static int __devinit xenkbd_probe(struct xenbus_device *dev,
+ const struct xenbus_device_id *id)
+{
+ int ret, i, abs;
+ struct xenkbd_info *info;
+ struct input_dev *kbd, *ptr;
+
+ info = kzalloc(sizeof(*info), GFP_KERNEL);
+ if (!info) {
+ xenbus_dev_fatal(dev, -ENOMEM, "allocating info structure");
+ return -ENOMEM;
+ }
+ dev_set_drvdata(&dev->dev, info);
+ info->xbdev = dev;
+ info->irq = -1;
+ info->gref = -1;
+ snprintf(info->phys, sizeof(info->phys), "xenbus/%s", dev->nodename);
+
+ info->page = (void *)__get_free_page(GFP_KERNEL | __GFP_ZERO);
+ if (!info->page)
+ goto error_nomem;
+
+ if (xenbus_scanf(XBT_NIL, dev->otherend, "feature-abs-pointer", "%d", &abs) < 0)
+ abs = 0;
+ if (abs)
+ xenbus_printf(XBT_NIL, dev->nodename, "request-abs-pointer", "1");
+
+ /* keyboard */
+ kbd = input_allocate_device();
+ if (!kbd)
+ goto error_nomem;
+ kbd->name = "Xen Virtual Keyboard";
+ kbd->phys = info->phys;
+ kbd->id.bustype = BUS_PCI;
+ kbd->id.vendor = 0x5853;
+ kbd->id.product = 0xffff;
+
+ __set_bit(EV_KEY, kbd->evbit);
+ for (i = KEY_ESC; i < KEY_UNKNOWN; i++)
+ __set_bit(i, kbd->keybit);
+ for (i = KEY_OK; i < KEY_MAX; i++)
+ __set_bit(i, kbd->keybit);
+
+ ret = input_register_device(kbd);
+ if (ret) {
+ input_free_device(kbd);
+ xenbus_dev_fatal(dev, ret, "input_register_device(kbd)");
+ goto error;
+ }
+ info->kbd = kbd;
+
+ /* pointing device */
+ ptr = input_allocate_device();
+ if (!ptr)
+ goto error_nomem;
+ ptr->name = "Xen Virtual Pointer";
+ ptr->phys = info->phys;
+ ptr->id.bustype = BUS_PCI;
+ ptr->id.vendor = 0x5853;
+ ptr->id.product = 0xfffe;
+
+ if (abs) {
+ __set_bit(EV_ABS, ptr->evbit);
+ input_set_abs_params(ptr, ABS_X, 0, XENFB_WIDTH, 0, 0);
+ input_set_abs_params(ptr, ABS_Y, 0, XENFB_HEIGHT, 0, 0);
+ } else {
+ input_set_capability(ptr, EV_REL, REL_X);
+ input_set_capability(ptr, EV_REL, REL_Y);
+ }
+ input_set_capability(ptr, EV_REL, REL_WHEEL);
+
+ __set_bit(EV_KEY, ptr->evbit);
+ for (i = BTN_LEFT; i <= BTN_TASK; i++)
+ __set_bit(i, ptr->keybit);
+
+ ret = input_register_device(ptr);
+ if (ret) {
+ input_free_device(ptr);
+ xenbus_dev_fatal(dev, ret, "input_register_device(ptr)");
+ goto error;
+ }
+ info->ptr = ptr;
+
+ ret = xenkbd_connect_backend(dev, info);
+ if (ret < 0)
+ goto error;
+
+ return 0;
+
+ error_nomem:
+ ret = -ENOMEM;
+ xenbus_dev_fatal(dev, ret, "allocating device memory");
+ error:
+ xenkbd_remove(dev);
+ return ret;
+}
+
+static int xenkbd_resume(struct xenbus_device *dev)
+{
+ struct xenkbd_info *info = dev_get_drvdata(&dev->dev);
+
+ xenkbd_disconnect_backend(info);
+ memset(info->page, 0, PAGE_SIZE);
+ return xenkbd_connect_backend(dev, info);
+}
+
+static int xenkbd_remove(struct xenbus_device *dev)
+{
+ struct xenkbd_info *info = dev_get_drvdata(&dev->dev);
+
+ xenkbd_disconnect_backend(info);
+ if (info->kbd)
+ input_unregister_device(info->kbd);
+ if (info->ptr)
+ input_unregister_device(info->ptr);
+ free_page((unsigned long)info->page);
+ kfree(info);
+ return 0;
+}
+
+static int xenkbd_connect_backend(struct xenbus_device *dev,
+ struct xenkbd_info *info)
+{
+ int ret, evtchn;
+ struct xenbus_transaction xbt;
+
+ ret = gnttab_grant_foreign_access(dev->otherend_id,
+ virt_to_mfn(info->page), 0);
+ if (ret < 0)
+ return ret;
+ info->gref = ret;
+
+ ret = xenbus_alloc_evtchn(dev, &evtchn);
+ if (ret)
+ goto error_grant;
+ ret = bind_evtchn_to_irqhandler(evtchn, input_handler,
+ 0, dev->devicetype, info);
+ if (ret < 0) {
+ xenbus_dev_fatal(dev, ret, "bind_evtchn_to_irqhandler");
+ goto error_evtchan;
+ }
+ info->irq = ret;
+
+ again:
+ ret = xenbus_transaction_start(&xbt);
+ if (ret) {
+ xenbus_dev_fatal(dev, ret, "starting transaction");
+ goto error_irqh;
+ }
+ ret = xenbus_printf(xbt, dev->nodename, "page-ref", "%lu",
+ virt_to_mfn(info->page));
+ if (ret)
+ goto error_xenbus;
+ ret = xenbus_printf(xbt, dev->nodename, "page-gref", "%u", info->gref);
+ if (ret)
+ goto error_xenbus;
+ ret = xenbus_printf(xbt, dev->nodename, "event-channel", "%u",
+ evtchn);
+ if (ret)
+ goto error_xenbus;
+ ret = xenbus_transaction_end(xbt, 0);
+ if (ret) {
+ if (ret == -EAGAIN)
+ goto again;
+ xenbus_dev_fatal(dev, ret, "completing transaction");
+ goto error_irqh;
+ }
+
+ xenbus_switch_state(dev, XenbusStateInitialised);
+ return 0;
+
+ error_xenbus:
+ xenbus_transaction_end(xbt, 1);
+ xenbus_dev_fatal(dev, ret, "writing xenstore");
+ error_irqh:
+ unbind_from_irqhandler(info->irq, info);
+ info->irq = -1;
+ error_evtchan:
+ xenbus_free_evtchn(dev, evtchn);
+ error_grant:
+ gnttab_end_foreign_access_ref(info->gref, 0);
+ info->gref = -1;
+ return ret;
+}
+
+static void xenkbd_disconnect_backend(struct xenkbd_info *info)
+{
+ if (info->irq >= 0)
+ unbind_from_irqhandler(info->irq, info);
+ info->irq = -1;
+ if (info->gref >= 0)
+ gnttab_end_foreign_access_ref(info->gref, 0);
+ info->gref = -1;
+}
+
+static void xenkbd_backend_changed(struct xenbus_device *dev,
+ enum xenbus_state backend_state)
+{
+ struct xenkbd_info *info = dev_get_drvdata(&dev->dev);
+ int ret, val;
+
+ switch (backend_state) {
+ case XenbusStateInitialising:
+ case XenbusStateInitialised:
+ case XenbusStateReconfiguring:
+ case XenbusStateReconfigured:
+ case XenbusStateUnknown:
+ case XenbusStateClosed:
+ break;
+
+ case XenbusStateInitWait:
+InitWait:
+ ret = xenbus_scanf(XBT_NIL, info->xbdev->otherend,
+ "feature-abs-pointer", "%d", &val);
+ if (ret < 0)
+ val = 0;
+ if (val) {
+ ret = xenbus_printf(XBT_NIL, info->xbdev->nodename,
+ "request-abs-pointer", "1");
+ if (ret)
+ pr_warning("xenkbd: can't request abs-pointer");
+ }
+
+ xenbus_switch_state(dev, XenbusStateConnected);
+ break;
+
+ case XenbusStateConnected:
+ /*
+ * Work around xenbus race condition: If backend goes
+ * through InitWait to Connected fast enough, we can
+ * get Connected twice here.
+ */
+ if (dev->state != XenbusStateConnected)
+ goto InitWait; /* no InitWait seen yet, fudge it */
+
+ /* Set input abs params to match backend screen res */
+ if (xenbus_scanf(XBT_NIL, info->xbdev->otherend,
+ "width", "%d", &val) > 0)
+ input_set_abs_params(info->ptr, ABS_X, 0, val, 0, 0);
+
+ if (xenbus_scanf(XBT_NIL, info->xbdev->otherend,
+ "height", "%d", &val) > 0)
+ input_set_abs_params(info->ptr, ABS_Y, 0, val, 0, 0);
+
+ break;
+
+ case XenbusStateClosing:
+ xenbus_frontend_closed(dev);
+ break;
+ }
+}
+
+static const struct xenbus_device_id xenkbd_ids[] = {
+ { "vkbd" },
+ { "" }
+};
+
+static struct xenbus_driver xenkbd_driver = {
+ .name = "vkbd",
+ .owner = THIS_MODULE,
+ .ids = xenkbd_ids,
+ .probe = xenkbd_probe,
+ .remove = xenkbd_remove,
+ .resume = xenkbd_resume,
+ .otherend_changed = xenkbd_backend_changed,
+};
+
+static int __init xenkbd_init(void)
+{
+ if (!xen_domain())
+ return -ENODEV;
+
+ /* Nothing to do if running in dom0. */
+ if (xen_initial_domain())
+ return -ENODEV;
+
+ return xenbus_register_frontend(&xenkbd_driver);
+}
+
+static void __exit xenkbd_cleanup(void)
+{
+ xenbus_unregister_driver(&xenkbd_driver);
+}
+
+module_init(xenkbd_init);
+module_exit(xenkbd_cleanup);
+
+MODULE_DESCRIPTION("Xen virtual keyboard/pointer device frontend");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("xen:vkbd");
diff --git a/drivers/input/misc/yealink.c b/drivers/input/misc/yealink.c
new file mode 100644
index 0000000..41201c6
--- /dev/null
+++ b/drivers/input/misc/yealink.c
@@ -0,0 +1,1012 @@
+/*
+ * drivers/usb/input/yealink.c
+ *
+ * Copyright (c) 2005 Henk Vergonet <Henk.Vergonet@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+/*
+ * Description:
+ * Driver for the USB-P1K voip usb phone.
+ * This device is produced by Yealink Network Technology Co Ltd
+ * but may be branded under several names:
+ * - Yealink usb-p1k
+ * - Tiptel 115
+ * - ...
+ *
+ * This driver is based on:
+ * - the usbb2k-api http://savannah.nongnu.org/projects/usbb2k-api/
+ * - information from http://memeteau.free.fr/usbb2k
+ * - the xpad-driver drivers/input/joystick/xpad.c
+ *
+ * Thanks to:
+ * - Olivier Vandorpe, for providing the usbb2k-api.
+ * - Martin Diehl, for spotting my memory allocation bug.
+ *
+ * History:
+ * 20050527 henk First version, functional keyboard. Keyboard events
+ * will pop-up on the ../input/eventX bus.
+ * 20050531 henk Added led, LCD, dialtone and sysfs interface.
+ * 20050610 henk Cleanups, make it ready for public consumption.
+ * 20050630 henk Cleanups, fixes in response to comments.
+ * 20050701 henk sysfs write serialisation, fix potential unload races
+ * 20050801 henk Added ringtone, restructure USB
+ * 20050816 henk Merge 2.6.13-rc6
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/rwsem.h>
+#include <linux/usb/input.h>
+#include <linux/map_to_7segment.h>
+
+#include "yealink.h"
+
+#define DRIVER_VERSION "yld-20051230"
+#define DRIVER_AUTHOR "Henk Vergonet"
+#define DRIVER_DESC "Yealink phone driver"
+
+#define YEALINK_POLLING_FREQUENCY 10 /* in [Hz] */
+
+struct yld_status {
+ u8 lcd[24];
+ u8 led;
+ u8 dialtone;
+ u8 ringtone;
+ u8 keynum;
+} __attribute__ ((packed));
+
+/*
+ * Register the LCD segment and icon map
+ */
+#define _LOC(k,l) { .a = (k), .m = (l) }
+#define _SEG(t, a, am, b, bm, c, cm, d, dm, e, em, f, fm, g, gm) \
+ { .type = (t), \
+ .u = { .s = { _LOC(a, am), _LOC(b, bm), _LOC(c, cm), \
+ _LOC(d, dm), _LOC(e, em), _LOC(g, gm), \
+ _LOC(f, fm) } } }
+#define _PIC(t, h, hm, n) \
+ { .type = (t), \
+ .u = { .p = { .name = (n), .a = (h), .m = (hm) } } }
+
+static const struct lcd_segment_map {
+ char type;
+ union {
+ struct pictogram_map {
+ u8 a,m;
+ char name[10];
+ } p;
+ struct segment_map {
+ u8 a,m;
+ } s[7];
+ } u;
+} lcdMap[] = {
+#include "yealink.h"
+};
+
+struct yealink_dev {
+ struct input_dev *idev; /* input device */
+ struct usb_device *udev; /* usb device */
+
+ /* irq input channel */
+ struct yld_ctl_packet *irq_data;
+ dma_addr_t irq_dma;
+ struct urb *urb_irq;
+
+ /* control output channel */
+ struct yld_ctl_packet *ctl_data;
+ dma_addr_t ctl_dma;
+ struct usb_ctrlrequest *ctl_req;
+ struct urb *urb_ctl;
+
+ char phys[64]; /* physical device path */
+
+ u8 lcdMap[ARRAY_SIZE(lcdMap)]; /* state of LCD, LED ... */
+ int key_code; /* last reported key */
+
+ unsigned int shutdown:1;
+
+ int stat_ix;
+ union {
+ struct yld_status s;
+ u8 b[sizeof(struct yld_status)];
+ } master, copy;
+};
+
+
+/*******************************************************************************
+ * Yealink lcd interface
+ ******************************************************************************/
+
+/*
+ * Register a default 7 segment character set
+ */
+static SEG7_DEFAULT_MAP(map_seg7);
+
+ /* Display a char,
+ * char '\9' and '\n' are placeholders and do not overwrite the original text.
+ * A space will always hide an icon.
+ */
+static int setChar(struct yealink_dev *yld, int el, int chr)
+{
+ int i, a, m, val;
+
+ if (el >= ARRAY_SIZE(lcdMap))
+ return -EINVAL;
+
+ if (chr == '\t' || chr == '\n')
+ return 0;
+
+ yld->lcdMap[el] = chr;
+
+ if (lcdMap[el].type == '.') {
+ a = lcdMap[el].u.p.a;
+ m = lcdMap[el].u.p.m;
+ if (chr != ' ')
+ yld->master.b[a] |= m;
+ else
+ yld->master.b[a] &= ~m;
+ return 0;
+ }
+
+ val = map_to_seg7(&map_seg7, chr);
+ for (i = 0; i < ARRAY_SIZE(lcdMap[0].u.s); i++) {
+ m = lcdMap[el].u.s[i].m;
+
+ if (m == 0)
+ continue;
+
+ a = lcdMap[el].u.s[i].a;
+ if (val & 1)
+ yld->master.b[a] |= m;
+ else
+ yld->master.b[a] &= ~m;
+ val = val >> 1;
+ }
+ return 0;
+};
+
+/*******************************************************************************
+ * Yealink key interface
+ ******************************************************************************/
+
+/* Map device buttons to internal key events.
+ *
+ * USB-P1K button layout:
+ *
+ * up
+ * IN OUT
+ * down
+ *
+ * pickup C hangup
+ * 1 2 3
+ * 4 5 6
+ * 7 8 9
+ * * 0 #
+ *
+ * The "up" and "down" keys, are symbolised by arrows on the button.
+ * The "pickup" and "hangup" keys are symbolised by a green and red phone
+ * on the button.
+ */
+static int map_p1k_to_key(int scancode)
+{
+ switch(scancode) { /* phone key: */
+ case 0x23: return KEY_LEFT; /* IN */
+ case 0x33: return KEY_UP; /* up */
+ case 0x04: return KEY_RIGHT; /* OUT */
+ case 0x24: return KEY_DOWN; /* down */
+ case 0x03: return KEY_ENTER; /* pickup */
+ case 0x14: return KEY_BACKSPACE; /* C */
+ case 0x13: return KEY_ESC; /* hangup */
+ case 0x00: return KEY_1; /* 1 */
+ case 0x01: return KEY_2; /* 2 */
+ case 0x02: return KEY_3; /* 3 */
+ case 0x10: return KEY_4; /* 4 */
+ case 0x11: return KEY_5; /* 5 */
+ case 0x12: return KEY_6; /* 6 */
+ case 0x20: return KEY_7; /* 7 */
+ case 0x21: return KEY_8; /* 8 */
+ case 0x22: return KEY_9; /* 9 */
+ case 0x30: return KEY_KPASTERISK; /* * */
+ case 0x31: return KEY_0; /* 0 */
+ case 0x32: return KEY_LEFTSHIFT |
+ KEY_3 << 8; /* # */
+ }
+ return -EINVAL;
+}
+
+/* Completes a request by converting the data into events for the
+ * input subsystem.
+ *
+ * The key parameter can be cascaded: key2 << 8 | key1
+ */
+static void report_key(struct yealink_dev *yld, int key)
+{
+ struct input_dev *idev = yld->idev;
+
+ if (yld->key_code >= 0) {
+ /* old key up */
+ input_report_key(idev, yld->key_code & 0xff, 0);
+ if (yld->key_code >> 8)
+ input_report_key(idev, yld->key_code >> 8, 0);
+ }
+
+ yld->key_code = key;
+ if (key >= 0) {
+ /* new valid key */
+ input_report_key(idev, key & 0xff, 1);
+ if (key >> 8)
+ input_report_key(idev, key >> 8, 1);
+ }
+ input_sync(idev);
+}
+
+/*******************************************************************************
+ * Yealink usb communication interface
+ ******************************************************************************/
+
+static int yealink_cmd(struct yealink_dev *yld, struct yld_ctl_packet *p)
+{
+ u8 *buf = (u8 *)p;
+ int i;
+ u8 sum = 0;
+
+ for(i=0; i<USB_PKT_LEN-1; i++)
+ sum -= buf[i];
+ p->sum = sum;
+ return usb_control_msg(yld->udev,
+ usb_sndctrlpipe(yld->udev, 0),
+ USB_REQ_SET_CONFIGURATION,
+ USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_OUT,
+ 0x200, 3,
+ p, sizeof(*p),
+ USB_CTRL_SET_TIMEOUT);
+}
+
+static u8 default_ringtone[] = {
+ 0xEF, /* volume [0-255] */
+ 0xFB, 0x1E, 0x00, 0x0C, /* 1250 [hz], 12/100 [s] */
+ 0xFC, 0x18, 0x00, 0x0C, /* 1000 [hz], 12/100 [s] */
+ 0xFB, 0x1E, 0x00, 0x0C,
+ 0xFC, 0x18, 0x00, 0x0C,
+ 0xFB, 0x1E, 0x00, 0x0C,
+ 0xFC, 0x18, 0x00, 0x0C,
+ 0xFB, 0x1E, 0x00, 0x0C,
+ 0xFC, 0x18, 0x00, 0x0C,
+ 0xFF, 0xFF, 0x01, 0x90, /* silent, 400/100 [s] */
+ 0x00, 0x00 /* end of sequence */
+};
+
+static int yealink_set_ringtone(struct yealink_dev *yld, u8 *buf, size_t size)
+{
+ struct yld_ctl_packet *p = yld->ctl_data;
+ int ix, len;
+
+ if (size <= 0)
+ return -EINVAL;
+
+ /* Set the ringtone volume */
+ memset(yld->ctl_data, 0, sizeof(*(yld->ctl_data)));
+ yld->ctl_data->cmd = CMD_RING_VOLUME;
+ yld->ctl_data->size = 1;
+ yld->ctl_data->data[0] = buf[0];
+ yealink_cmd(yld, p);
+
+ buf++;
+ size--;
+
+ p->cmd = CMD_RING_NOTE;
+ ix = 0;
+ while (size != ix) {
+ len = size - ix;
+ if (len > sizeof(p->data))
+ len = sizeof(p->data);
+ p->size = len;
+ p->offset = cpu_to_be16(ix);
+ memcpy(p->data, &buf[ix], len);
+ yealink_cmd(yld, p);
+ ix += len;
+ }
+ return 0;
+}
+
+/* keep stat_master & stat_copy in sync.
+ */
+static int yealink_do_idle_tasks(struct yealink_dev *yld)
+{
+ u8 val;
+ int i, ix, len;
+
+ ix = yld->stat_ix;
+
+ memset(yld->ctl_data, 0, sizeof(*(yld->ctl_data)));
+ yld->ctl_data->cmd = CMD_KEYPRESS;
+ yld->ctl_data->size = 1;
+ yld->ctl_data->sum = 0xff - CMD_KEYPRESS;
+
+ /* If state update pointer wraps do a KEYPRESS first. */
+ if (ix >= sizeof(yld->master)) {
+ yld->stat_ix = 0;
+ return 0;
+ }
+
+ /* find update candidates: copy != master */
+ do {
+ val = yld->master.b[ix];
+ if (val != yld->copy.b[ix])
+ goto send_update;
+ } while (++ix < sizeof(yld->master));
+
+ /* nothing todo, wait a bit and poll for a KEYPRESS */
+ yld->stat_ix = 0;
+ /* TODO how can we wait abit. ??
+ * msleep_interruptible(1000 / YEALINK_POLLING_FREQUENCY);
+ */
+ return 0;
+
+send_update:
+
+ /* Setup an appropriate update request */
+ yld->copy.b[ix] = val;
+ yld->ctl_data->data[0] = val;
+
+ switch(ix) {
+ case offsetof(struct yld_status, led):
+ yld->ctl_data->cmd = CMD_LED;
+ yld->ctl_data->sum = -1 - CMD_LED - val;
+ break;
+ case offsetof(struct yld_status, dialtone):
+ yld->ctl_data->cmd = CMD_DIALTONE;
+ yld->ctl_data->sum = -1 - CMD_DIALTONE - val;
+ break;
+ case offsetof(struct yld_status, ringtone):
+ yld->ctl_data->cmd = CMD_RINGTONE;
+ yld->ctl_data->sum = -1 - CMD_RINGTONE - val;
+ break;
+ case offsetof(struct yld_status, keynum):
+ val--;
+ val &= 0x1f;
+ yld->ctl_data->cmd = CMD_SCANCODE;
+ yld->ctl_data->offset = cpu_to_be16(val);
+ yld->ctl_data->data[0] = 0;
+ yld->ctl_data->sum = -1 - CMD_SCANCODE - val;
+ break;
+ default:
+ len = sizeof(yld->master.s.lcd) - ix;
+ if (len > sizeof(yld->ctl_data->data))
+ len = sizeof(yld->ctl_data->data);
+
+ /* Combine up to <len> consecutive LCD bytes in a singe request
+ */
+ yld->ctl_data->cmd = CMD_LCD;
+ yld->ctl_data->offset = cpu_to_be16(ix);
+ yld->ctl_data->size = len;
+ yld->ctl_data->sum = -CMD_LCD - ix - val - len;
+ for(i=1; i<len; i++) {
+ ix++;
+ val = yld->master.b[ix];
+ yld->copy.b[ix] = val;
+ yld->ctl_data->data[i] = val;
+ yld->ctl_data->sum -= val;
+ }
+ }
+ yld->stat_ix = ix + 1;
+ return 1;
+}
+
+/* Decide on how to handle responses
+ *
+ * The state transition diagram is somethhing like:
+ *
+ * syncState<--+
+ * | |
+ * | idle
+ * \|/ |
+ * init --ok--> waitForKey --ok--> getKey
+ * ^ ^ |
+ * | +-------ok-------+
+ * error,start
+ *
+ */
+static void urb_irq_callback(struct urb *urb)
+{
+ struct yealink_dev *yld = urb->context;
+ int ret, status = urb->status;
+
+ if (status)
+ err("%s - urb status %d", __func__, status);
+
+ switch (yld->irq_data->cmd) {
+ case CMD_KEYPRESS:
+
+ yld->master.s.keynum = yld->irq_data->data[0];
+ break;
+
+ case CMD_SCANCODE:
+ dbg("get scancode %x", yld->irq_data->data[0]);
+
+ report_key(yld, map_p1k_to_key(yld->irq_data->data[0]));
+ break;
+
+ default:
+ err("unexpected response %x", yld->irq_data->cmd);
+ }
+
+ yealink_do_idle_tasks(yld);
+
+ if (!yld->shutdown) {
+ ret = usb_submit_urb(yld->urb_ctl, GFP_ATOMIC);
+ if (ret && ret != -EPERM)
+ err("%s - usb_submit_urb failed %d", __func__, ret);
+ }
+}
+
+static void urb_ctl_callback(struct urb *urb)
+{
+ struct yealink_dev *yld = urb->context;
+ int ret = 0, status = urb->status;
+
+ if (status)
+ err("%s - urb status %d", __func__, status);
+
+ switch (yld->ctl_data->cmd) {
+ case CMD_KEYPRESS:
+ case CMD_SCANCODE:
+ /* ask for a response */
+ if (!yld->shutdown)
+ ret = usb_submit_urb(yld->urb_irq, GFP_ATOMIC);
+ break;
+ default:
+ /* send new command */
+ yealink_do_idle_tasks(yld);
+ if (!yld->shutdown)
+ ret = usb_submit_urb(yld->urb_ctl, GFP_ATOMIC);
+ break;
+ }
+
+ if (ret && ret != -EPERM)
+ err("%s - usb_submit_urb failed %d", __func__, ret);
+}
+
+/*******************************************************************************
+ * input event interface
+ ******************************************************************************/
+
+/* TODO should we issue a ringtone on a SND_BELL event?
+static int input_ev(struct input_dev *dev, unsigned int type,
+ unsigned int code, int value)
+{
+
+ if (type != EV_SND)
+ return -EINVAL;
+
+ switch (code) {
+ case SND_BELL:
+ case SND_TONE:
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+*/
+
+static int input_open(struct input_dev *dev)
+{
+ struct yealink_dev *yld = input_get_drvdata(dev);
+ int i, ret;
+
+ dbg("%s", __func__);
+
+ /* force updates to device */
+ for (i = 0; i<sizeof(yld->master); i++)
+ yld->copy.b[i] = ~yld->master.b[i];
+ yld->key_code = -1; /* no keys pressed */
+
+ yealink_set_ringtone(yld, default_ringtone, sizeof(default_ringtone));
+
+ /* issue INIT */
+ memset(yld->ctl_data, 0, sizeof(*(yld->ctl_data)));
+ yld->ctl_data->cmd = CMD_INIT;
+ yld->ctl_data->size = 10;
+ yld->ctl_data->sum = 0x100-CMD_INIT-10;
+ if ((ret = usb_submit_urb(yld->urb_ctl, GFP_KERNEL)) != 0) {
+ dbg("%s - usb_submit_urb failed with result %d",
+ __func__, ret);
+ return ret;
+ }
+ return 0;
+}
+
+static void input_close(struct input_dev *dev)
+{
+ struct yealink_dev *yld = input_get_drvdata(dev);
+
+ yld->shutdown = 1;
+ /*
+ * Make sure the flag is seen by other CPUs before we start
+ * killing URBs so new URBs won't be submitted
+ */
+ smp_wmb();
+
+ usb_kill_urb(yld->urb_ctl);
+ usb_kill_urb(yld->urb_irq);
+
+ yld->shutdown = 0;
+ smp_wmb();
+}
+
+/*******************************************************************************
+ * sysfs interface
+ ******************************************************************************/
+
+static DECLARE_RWSEM(sysfs_rwsema);
+
+/* Interface to the 7-segments translation table aka. char set.
+ */
+static ssize_t show_map(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ memcpy(buf, &map_seg7, sizeof(map_seg7));
+ return sizeof(map_seg7);
+}
+
+static ssize_t store_map(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t cnt)
+{
+ if (cnt != sizeof(map_seg7))
+ return -EINVAL;
+ memcpy(&map_seg7, buf, sizeof(map_seg7));
+ return sizeof(map_seg7);
+}
+
+/* Interface to the LCD.
+ */
+
+/* Reading /sys/../lineX will return the format string with its settings:
+ *
+ * Example:
+ * cat ./line3
+ * 888888888888
+ * Linux Rocks!
+ */
+static ssize_t show_line(struct device *dev, char *buf, int a, int b)
+{
+ struct yealink_dev *yld;
+ int i;
+
+ down_read(&sysfs_rwsema);
+ yld = dev_get_drvdata(dev);
+ if (yld == NULL) {
+ up_read(&sysfs_rwsema);
+ return -ENODEV;
+ }
+
+ for (i = a; i < b; i++)
+ *buf++ = lcdMap[i].type;
+ *buf++ = '\n';
+ for (i = a; i < b; i++)
+ *buf++ = yld->lcdMap[i];
+ *buf++ = '\n';
+ *buf = 0;
+
+ up_read(&sysfs_rwsema);
+ return 3 + ((b - a) << 1);
+}
+
+static ssize_t show_line1(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ return show_line(dev, buf, LCD_LINE1_OFFSET, LCD_LINE2_OFFSET);
+}
+
+static ssize_t show_line2(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ return show_line(dev, buf, LCD_LINE2_OFFSET, LCD_LINE3_OFFSET);
+}
+
+static ssize_t show_line3(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ return show_line(dev, buf, LCD_LINE3_OFFSET, LCD_LINE4_OFFSET);
+}
+
+/* Writing to /sys/../lineX will set the coresponding LCD line.
+ * - Excess characters are ignored.
+ * - If less characters are written than allowed, the remaining digits are
+ * unchanged.
+ * - The '\n' or '\t' char is a placeholder, it does not overwrite the
+ * original content.
+ */
+static ssize_t store_line(struct device *dev, const char *buf, size_t count,
+ int el, size_t len)
+{
+ struct yealink_dev *yld;
+ int i;
+
+ down_write(&sysfs_rwsema);
+ yld = dev_get_drvdata(dev);
+ if (yld == NULL) {
+ up_write(&sysfs_rwsema);
+ return -ENODEV;
+ }
+
+ if (len > count)
+ len = count;
+ for (i = 0; i < len; i++)
+ setChar(yld, el++, buf[i]);
+
+ up_write(&sysfs_rwsema);
+ return count;
+}
+
+static ssize_t store_line1(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ return store_line(dev, buf, count, LCD_LINE1_OFFSET, LCD_LINE1_SIZE);
+}
+
+static ssize_t store_line2(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ return store_line(dev, buf, count, LCD_LINE2_OFFSET, LCD_LINE2_SIZE);
+}
+
+static ssize_t store_line3(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ return store_line(dev, buf, count, LCD_LINE3_OFFSET, LCD_LINE3_SIZE);
+}
+
+/* Interface to visible and audible "icons", these include:
+ * pictures on the LCD, the LED, and the dialtone signal.
+ */
+
+/* Get a list of "switchable elements" with their current state. */
+static ssize_t get_icons(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct yealink_dev *yld;
+ int i, ret = 1;
+
+ down_read(&sysfs_rwsema);
+ yld = dev_get_drvdata(dev);
+ if (yld == NULL) {
+ up_read(&sysfs_rwsema);
+ return -ENODEV;
+ }
+
+ for (i = 0; i < ARRAY_SIZE(lcdMap); i++) {
+ if (lcdMap[i].type != '.')
+ continue;
+ ret += sprintf(&buf[ret], "%s %s\n",
+ yld->lcdMap[i] == ' ' ? " " : "on",
+ lcdMap[i].u.p.name);
+ }
+ up_read(&sysfs_rwsema);
+ return ret;
+}
+
+/* Change the visibility of a particular element. */
+static ssize_t set_icon(struct device *dev, const char *buf, size_t count,
+ int chr)
+{
+ struct yealink_dev *yld;
+ int i;
+
+ down_write(&sysfs_rwsema);
+ yld = dev_get_drvdata(dev);
+ if (yld == NULL) {
+ up_write(&sysfs_rwsema);
+ return -ENODEV;
+ }
+
+ for (i = 0; i < ARRAY_SIZE(lcdMap); i++) {
+ if (lcdMap[i].type != '.')
+ continue;
+ if (strncmp(buf, lcdMap[i].u.p.name, count) == 0) {
+ setChar(yld, i, chr);
+ break;
+ }
+ }
+
+ up_write(&sysfs_rwsema);
+ return count;
+}
+
+static ssize_t show_icon(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ return set_icon(dev, buf, count, buf[0]);
+}
+
+static ssize_t hide_icon(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ return set_icon(dev, buf, count, ' ');
+}
+
+/* Upload a ringtone to the device.
+ */
+
+/* Stores raw ringtone data in the phone */
+static ssize_t store_ringtone(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct yealink_dev *yld;
+
+ down_write(&sysfs_rwsema);
+ yld = dev_get_drvdata(dev);
+ if (yld == NULL) {
+ up_write(&sysfs_rwsema);
+ return -ENODEV;
+ }
+
+ /* TODO locking with async usb control interface??? */
+ yealink_set_ringtone(yld, (char *)buf, count);
+ up_write(&sysfs_rwsema);
+ return count;
+}
+
+#define _M444 S_IRUGO
+#define _M664 S_IRUGO|S_IWUSR|S_IWGRP
+#define _M220 S_IWUSR|S_IWGRP
+
+static DEVICE_ATTR(map_seg7 , _M664, show_map , store_map );
+static DEVICE_ATTR(line1 , _M664, show_line1 , store_line1 );
+static DEVICE_ATTR(line2 , _M664, show_line2 , store_line2 );
+static DEVICE_ATTR(line3 , _M664, show_line3 , store_line3 );
+static DEVICE_ATTR(get_icons , _M444, get_icons , NULL );
+static DEVICE_ATTR(show_icon , _M220, NULL , show_icon );
+static DEVICE_ATTR(hide_icon , _M220, NULL , hide_icon );
+static DEVICE_ATTR(ringtone , _M220, NULL , store_ringtone);
+
+static struct attribute *yld_attributes[] = {
+ &dev_attr_line1.attr,
+ &dev_attr_line2.attr,
+ &dev_attr_line3.attr,
+ &dev_attr_get_icons.attr,
+ &dev_attr_show_icon.attr,
+ &dev_attr_hide_icon.attr,
+ &dev_attr_map_seg7.attr,
+ &dev_attr_ringtone.attr,
+ NULL
+};
+
+static struct attribute_group yld_attr_group = {
+ .attrs = yld_attributes
+};
+
+/*******************************************************************************
+ * Linux interface and usb initialisation
+ ******************************************************************************/
+
+struct driver_info {
+ char *name;
+};
+
+static const struct driver_info info_P1K = {
+ .name = "Yealink usb-p1k",
+};
+
+static const struct usb_device_id usb_table [] = {
+ {
+ .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
+ USB_DEVICE_ID_MATCH_INT_INFO,
+ .idVendor = 0x6993,
+ .idProduct = 0xb001,
+ .bInterfaceClass = USB_CLASS_HID,
+ .bInterfaceSubClass = 0,
+ .bInterfaceProtocol = 0,
+ .driver_info = (kernel_ulong_t)&info_P1K
+ },
+ { }
+};
+
+static int usb_cleanup(struct yealink_dev *yld, int err)
+{
+ if (yld == NULL)
+ return err;
+
+ if (yld->idev) {
+ if (err)
+ input_free_device(yld->idev);
+ else
+ input_unregister_device(yld->idev);
+ }
+
+ usb_free_urb(yld->urb_irq);
+ usb_free_urb(yld->urb_ctl);
+
+ kfree(yld->ctl_req);
+ usb_free_coherent(yld->udev, USB_PKT_LEN, yld->ctl_data, yld->ctl_dma);
+ usb_free_coherent(yld->udev, USB_PKT_LEN, yld->irq_data, yld->irq_dma);
+
+ kfree(yld);
+ return err;
+}
+
+static void usb_disconnect(struct usb_interface *intf)
+{
+ struct yealink_dev *yld;
+
+ down_write(&sysfs_rwsema);
+ yld = usb_get_intfdata(intf);
+ sysfs_remove_group(&intf->dev.kobj, &yld_attr_group);
+ usb_set_intfdata(intf, NULL);
+ up_write(&sysfs_rwsema);
+
+ usb_cleanup(yld, 0);
+}
+
+static int usb_probe(struct usb_interface *intf, const struct usb_device_id *id)
+{
+ struct usb_device *udev = interface_to_usbdev (intf);
+ struct driver_info *nfo = (struct driver_info *)id->driver_info;
+ struct usb_host_interface *interface;
+ struct usb_endpoint_descriptor *endpoint;
+ struct yealink_dev *yld;
+ struct input_dev *input_dev;
+ int ret, pipe, i;
+
+ interface = intf->cur_altsetting;
+ endpoint = &interface->endpoint[0].desc;
+ if (!usb_endpoint_is_int_in(endpoint))
+ return -ENODEV;
+
+ yld = kzalloc(sizeof(struct yealink_dev), GFP_KERNEL);
+ if (!yld)
+ return -ENOMEM;
+
+ yld->udev = udev;
+
+ yld->idev = input_dev = input_allocate_device();
+ if (!input_dev)
+ return usb_cleanup(yld, -ENOMEM);
+
+ /* allocate usb buffers */
+ yld->irq_data = usb_alloc_coherent(udev, USB_PKT_LEN,
+ GFP_ATOMIC, &yld->irq_dma);
+ if (yld->irq_data == NULL)
+ return usb_cleanup(yld, -ENOMEM);
+
+ yld->ctl_data = usb_alloc_coherent(udev, USB_PKT_LEN,
+ GFP_ATOMIC, &yld->ctl_dma);
+ if (!yld->ctl_data)
+ return usb_cleanup(yld, -ENOMEM);
+
+ yld->ctl_req = kmalloc(sizeof(*(yld->ctl_req)), GFP_KERNEL);
+ if (yld->ctl_req == NULL)
+ return usb_cleanup(yld, -ENOMEM);
+
+ /* allocate urb structures */
+ yld->urb_irq = usb_alloc_urb(0, GFP_KERNEL);
+ if (yld->urb_irq == NULL)
+ return usb_cleanup(yld, -ENOMEM);
+
+ yld->urb_ctl = usb_alloc_urb(0, GFP_KERNEL);
+ if (yld->urb_ctl == NULL)
+ return usb_cleanup(yld, -ENOMEM);
+
+ /* get a handle to the interrupt data pipe */
+ pipe = usb_rcvintpipe(udev, endpoint->bEndpointAddress);
+ ret = usb_maxpacket(udev, pipe, usb_pipeout(pipe));
+ if (ret != USB_PKT_LEN)
+ err("invalid payload size %d, expected %zd", ret, USB_PKT_LEN);
+
+ /* initialise irq urb */
+ usb_fill_int_urb(yld->urb_irq, udev, pipe, yld->irq_data,
+ USB_PKT_LEN,
+ urb_irq_callback,
+ yld, endpoint->bInterval);
+ yld->urb_irq->transfer_dma = yld->irq_dma;
+ yld->urb_irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
+ yld->urb_irq->dev = udev;
+
+ /* initialise ctl urb */
+ yld->ctl_req->bRequestType = USB_TYPE_CLASS | USB_RECIP_INTERFACE |
+ USB_DIR_OUT;
+ yld->ctl_req->bRequest = USB_REQ_SET_CONFIGURATION;
+ yld->ctl_req->wValue = cpu_to_le16(0x200);
+ yld->ctl_req->wIndex = cpu_to_le16(interface->desc.bInterfaceNumber);
+ yld->ctl_req->wLength = cpu_to_le16(USB_PKT_LEN);
+
+ usb_fill_control_urb(yld->urb_ctl, udev, usb_sndctrlpipe(udev, 0),
+ (void *)yld->ctl_req, yld->ctl_data, USB_PKT_LEN,
+ urb_ctl_callback, yld);
+ yld->urb_ctl->transfer_dma = yld->ctl_dma;
+ yld->urb_ctl->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
+ yld->urb_ctl->dev = udev;
+
+ /* find out the physical bus location */
+ usb_make_path(udev, yld->phys, sizeof(yld->phys));
+ strlcat(yld->phys, "/input0", sizeof(yld->phys));
+
+ /* register settings for the input device */
+ input_dev->name = nfo->name;
+ input_dev->phys = yld->phys;
+ usb_to_input_id(udev, &input_dev->id);
+ input_dev->dev.parent = &intf->dev;
+
+ input_set_drvdata(input_dev, yld);
+
+ input_dev->open = input_open;
+ input_dev->close = input_close;
+ /* input_dev->event = input_ev; TODO */
+
+ /* register available key events */
+ input_dev->evbit[0] = BIT_MASK(EV_KEY);
+ for (i = 0; i < 256; i++) {
+ int k = map_p1k_to_key(i);
+ if (k >= 0) {
+ set_bit(k & 0xff, input_dev->keybit);
+ if (k >> 8)
+ set_bit(k >> 8, input_dev->keybit);
+ }
+ }
+
+ ret = input_register_device(yld->idev);
+ if (ret)
+ return usb_cleanup(yld, ret);
+
+ usb_set_intfdata(intf, yld);
+
+ /* clear visible elements */
+ for (i = 0; i < ARRAY_SIZE(lcdMap); i++)
+ setChar(yld, i, ' ');
+
+ /* display driver version on LCD line 3 */
+ store_line3(&intf->dev, NULL,
+ DRIVER_VERSION, sizeof(DRIVER_VERSION));
+
+ /* Register sysfs hooks (don't care about failure) */
+ ret = sysfs_create_group(&intf->dev.kobj, &yld_attr_group);
+ return 0;
+}
+
+static struct usb_driver yealink_driver = {
+ .name = "yealink",
+ .probe = usb_probe,
+ .disconnect = usb_disconnect,
+ .id_table = usb_table,
+};
+
+static int __init yealink_dev_init(void)
+{
+ int ret = usb_register(&yealink_driver);
+ if (ret == 0)
+ printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":"
+ DRIVER_DESC "\n");
+ return ret;
+}
+
+static void __exit yealink_dev_exit(void)
+{
+ usb_deregister(&yealink_driver);
+}
+
+module_init(yealink_dev_init);
+module_exit(yealink_dev_exit);
+
+MODULE_DEVICE_TABLE (usb, usb_table);
+
+MODULE_AUTHOR(DRIVER_AUTHOR);
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
diff --git a/drivers/input/misc/yealink.h b/drivers/input/misc/yealink.h
new file mode 100644
index 0000000..1e0f523
--- /dev/null
+++ b/drivers/input/misc/yealink.h
@@ -0,0 +1,220 @@
+/*
+ * drivers/usb/input/yealink.h
+ *
+ * Copyright (c) 2005 Henk Vergonet <Henk.Vergonet@gmail.com>
+ *
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+#ifndef INPUT_YEALINK_H
+#define INPUT_YEALINK_H
+
+/* Using the control channel on interface 3 various aspects of the phone
+ * can be controlled like LCD, LED, dialtone and the ringtone.
+ */
+
+struct yld_ctl_packet {
+ u8 cmd; /* command code, see below */
+ u8 size; /* 1-11, size of used data bytes. */
+ u16 offset; /* internal packet offset */
+ u8 data[11];
+ s8 sum; /* negative sum of 15 preceding bytes */
+} __attribute__ ((packed));
+
+#define USB_PKT_LEN sizeof(struct yld_ctl_packet)
+
+/* The following yld_ctl_packet's are available: */
+
+/* Init registers
+ *
+ * cmd 0x8e
+ * size 10
+ * offset 0
+ * data 0,0,0,0....
+ */
+#define CMD_INIT 0x8e
+
+/* Request key scan
+ *
+ * cmd 0x80
+ * size 1
+ * offset 0
+ * data[0] on return returns the key number, if it changes there's a new
+ * key pressed.
+ */
+#define CMD_KEYPRESS 0x80
+
+/* Request scancode
+ *
+ * cmd 0x81
+ * size 1
+ * offset key number [0-1f]
+ * data[0] on return returns the scancode
+ */
+#define CMD_SCANCODE 0x81
+
+/* Set LCD
+ *
+ * cmd 0x04
+ * size 1-11
+ * offset 0-23
+ * data segment bits
+ */
+#define CMD_LCD 0x04
+
+/* Set led
+ *
+ * cmd 0x05
+ * size 1
+ * offset 0
+ * data[0] 0 OFF / 1 ON
+ */
+#define CMD_LED 0x05
+
+/* Set ringtone volume
+ *
+ * cmd 0x11
+ * size 1
+ * offset 0
+ * data[0] 0-0xff volume
+ */
+#define CMD_RING_VOLUME 0x11
+
+/* Set ringtone notes
+ *
+ * cmd 0x02
+ * size 1-11
+ * offset 0->
+ * data binary representation LE16(-freq), LE16(duration) ....
+ */
+#define CMD_RING_NOTE 0x02
+
+/* Sound ringtone via the speaker on the back
+ *
+ * cmd 0x03
+ * size 1
+ * offset 0
+ * data[0] 0 OFF / 0x24 ON
+ */
+#define CMD_RINGTONE 0x03
+
+/* Sound dial tone via the ear speaker
+ *
+ * cmd 0x09
+ * size 1
+ * offset 0
+ * data[0] 0 OFF / 1 ON
+ */
+#define CMD_DIALTONE 0x09
+
+#endif /* INPUT_YEALINK_H */
+
+
+#if defined(_SEG) && defined(_PIC)
+/* This table maps the LCD segments onto individual bit positions in the
+ * yld_status struct.
+ */
+
+/* LCD, each segment must be driven separately.
+ *
+ * Layout:
+ *
+ * |[] [][] [][] [][] in |[][]
+ * |[] M [][] D [][] : [][] out |[][]
+ * store
+ *
+ * NEW REP SU MO TU WE TH FR SA
+ *
+ * [] [] [] [] [] [] [] [] [] [] [] []
+ * [] [] [] [] [] [] [] [] [] [] [] []
+ */
+
+/* Line 1
+ * Format : 18.e8.M8.88...188
+ * Icon names : M D : IN OUT STORE
+ */
+#define LCD_LINE1_OFFSET 0
+#define LCD_LINE1_SIZE 17
+
+/* Note: first g then f => ! ! */
+/* _SEG( type a b c d e g f ) */
+ _SEG('1', 0,0 , 22,2 , 22,2 , 0,0 , 0,0 , 0,0 , 0,0 ),
+ _SEG('8', 20,1 , 20,2 , 20,4 , 20,8 , 21,4 , 21,2 , 21,1 ),
+ _PIC('.', 22,1 , "M" ),
+ _SEG('e', 18,1 , 18,2 , 18,4 , 18,1 , 19,2 , 18,1 , 19,1 ),
+ _SEG('8', 16,1 , 16,2 , 16,4 , 16,8 , 17,4 , 17,2 , 17,1 ),
+ _PIC('.', 15,8 , "D" ),
+ _SEG('M', 14,1 , 14,2 , 14,4 , 14,1 , 15,4 , 15,2 , 15,1 ),
+ _SEG('8', 12,1 , 12,2 , 12,4 , 12,8 , 13,4 , 13,2 , 13,1 ),
+ _PIC('.', 11,8 , ":" ),
+ _SEG('8', 10,1 , 10,2 , 10,4 , 10,8 , 11,4 , 11,2 , 11,1 ),
+ _SEG('8', 8,1 , 8,2 , 8,4 , 8,8 , 9,4 , 9,2 , 9,1 ),
+ _PIC('.', 7,1 , "IN" ),
+ _PIC('.', 7,2 , "OUT" ),
+ _PIC('.', 7,4 , "STORE" ),
+ _SEG('1', 0,0 , 5,1 , 5,1 , 0,0 , 0,0 , 0,0 , 0,0 ),
+ _SEG('8', 4,1 , 4,2 , 4,4 , 4,8 , 5,8 , 5,4 , 5,2 ),
+ _SEG('8', 2,1 , 2,2 , 2,4 , 2,8 , 3,4 , 3,2 , 3,1 ),
+
+/* Line 2
+ * Format : .........
+ * Pict. name : NEW REP SU MO TU WE TH FR SA
+ */
+#define LCD_LINE2_OFFSET LCD_LINE1_OFFSET + LCD_LINE1_SIZE
+#define LCD_LINE2_SIZE 9
+
+ _PIC('.', 23,2 , "NEW" ),
+ _PIC('.', 23,4 , "REP" ),
+ _PIC('.', 1,8 , "SU" ),
+ _PIC('.', 1,4 , "MO" ),
+ _PIC('.', 1,2 , "TU" ),
+ _PIC('.', 1,1 , "WE" ),
+ _PIC('.', 0,1 , "TH" ),
+ _PIC('.', 0,2 , "FR" ),
+ _PIC('.', 0,4 , "SA" ),
+
+/* Line 3
+ * Format : 888888888888
+ */
+#define LCD_LINE3_OFFSET LCD_LINE2_OFFSET + LCD_LINE2_SIZE
+#define LCD_LINE3_SIZE 12
+
+ _SEG('8', 22,16, 22,32, 22,64, 22,128, 23,128, 23,64, 23,32 ),
+ _SEG('8', 20,16, 20,32, 20,64, 20,128, 21,128, 21,64, 21,32 ),
+ _SEG('8', 18,16, 18,32, 18,64, 18,128, 19,128, 19,64, 19,32 ),
+ _SEG('8', 16,16, 16,32, 16,64, 16,128, 17,128, 17,64, 17,32 ),
+ _SEG('8', 14,16, 14,32, 14,64, 14,128, 15,128, 15,64, 15,32 ),
+ _SEG('8', 12,16, 12,32, 12,64, 12,128, 13,128, 13,64, 13,32 ),
+ _SEG('8', 10,16, 10,32, 10,64, 10,128, 11,128, 11,64, 11,32 ),
+ _SEG('8', 8,16, 8,32, 8,64, 8,128, 9,128, 9,64, 9,32 ),
+ _SEG('8', 6,16, 6,32, 6,64, 6,128, 7,128, 7,64, 7,32 ),
+ _SEG('8', 4,16, 4,32, 4,64, 4,128, 5,128, 5,64, 5,32 ),
+ _SEG('8', 2,16, 2,32, 2,64, 2,128, 3,128, 3,64, 3,32 ),
+ _SEG('8', 0,16, 0,32, 0,64, 0,128, 1,128, 1,64, 1,32 ),
+
+/* Line 4
+ *
+ * The LED, DIALTONE and RINGTONE are implemented as icons and use the same
+ * sysfs interface.
+ */
+#define LCD_LINE4_OFFSET LCD_LINE3_OFFSET + LCD_LINE3_SIZE
+
+ _PIC('.', offsetof(struct yld_status, led) , 0x01, "LED" ),
+ _PIC('.', offsetof(struct yld_status, dialtone) , 0x01, "DIALTONE" ),
+ _PIC('.', offsetof(struct yld_status, ringtone) , 0x24, "RINGTONE" ),
+
+#undef _SEG
+#undef _PIC
+#endif /* _SEG && _PIC */
diff --git a/drivers/input/mouse/Kconfig b/drivers/input/mouse/Kconfig
new file mode 100644
index 0000000..9c1e6ee
--- /dev/null
+++ b/drivers/input/mouse/Kconfig
@@ -0,0 +1,325 @@
+#
+# Mouse driver configuration
+#
+menuconfig INPUT_MOUSE
+ bool "Mice"
+ default y
+ help
+ Say Y here, and a list of supported mice will be displayed.
+ This option doesn't affect the kernel.
+
+ If unsure, say Y.
+
+if INPUT_MOUSE
+
+config MOUSE_PS2
+ tristate "PS/2 mouse"
+ default y
+ select SERIO
+ select SERIO_LIBPS2
+ select SERIO_I8042 if X86
+ select SERIO_GSCPS2 if GSC
+ help
+ Say Y here if you have a PS/2 mouse connected to your system. This
+ includes the standard 2 or 3-button PS/2 mouse, as well as PS/2
+ mice with wheels and extra buttons, Microsoft, Logitech or Genius
+ compatible.
+
+ Synaptics, ALPS or Elantech TouchPad users might be interested
+ in a specialized Xorg/XFree86 driver at:
+ <http://w1.894.telia.com/~u89404340/touchpad/index.html>
+ and a new version of GPM at:
+ <http://www.geocities.com/dt_or/gpm/gpm.html>
+ <http://xorg.freedesktop.org/archive/individual/driver/>
+ to take advantage of the advanced features of the touchpad.
+
+ If unsure, say Y.
+
+ To compile this driver as a module, choose M here: the
+ module will be called psmouse.
+
+config MOUSE_PS2_ALPS
+ bool "ALPS PS/2 mouse protocol extension" if EXPERT
+ default y
+ depends on MOUSE_PS2
+ help
+ Say Y here if you have an ALPS PS/2 touchpad connected to
+ your system.
+
+ If unsure, say Y.
+
+config MOUSE_PS2_LOGIPS2PP
+ bool "Logitech PS/2++ mouse protocol extension" if EXPERT
+ default y
+ depends on MOUSE_PS2
+ help
+ Say Y here if you have a Logictech PS/2++ mouse connected to
+ your system.
+
+ If unsure, say Y.
+
+config MOUSE_PS2_SYNAPTICS
+ bool "Synaptics PS/2 mouse protocol extension" if EXPERT
+ default y
+ depends on MOUSE_PS2
+ help
+ Say Y here if you have a Synaptics PS/2 TouchPad connected to
+ your system.
+
+ If unsure, say Y.
+
+config MOUSE_PS2_LIFEBOOK
+ bool "Fujitsu Lifebook PS/2 mouse protocol extension" if EXPERT
+ default y
+ depends on MOUSE_PS2 && X86 && DMI
+ help
+ Say Y here if you have a Fujitsu B-series Lifebook PS/2
+ TouchScreen connected to your system.
+
+ If unsure, say Y.
+
+config MOUSE_PS2_TRACKPOINT
+ bool "IBM Trackpoint PS/2 mouse protocol extension" if EXPERT
+ default y
+ depends on MOUSE_PS2
+ help
+ Say Y here if you have an IBM Trackpoint PS/2 mouse connected
+ to your system.
+
+ If unsure, say Y.
+
+config MOUSE_PS2_ELANTECH
+ bool "Elantech PS/2 protocol extension"
+ depends on MOUSE_PS2
+ help
+ Say Y here if you have an Elantech PS/2 touchpad connected
+ to your system.
+
+ Note that if you enable this driver you will need an updated
+ X.org Synaptics driver that does not require ABS_PRESSURE
+ reports from the touchpad (i.e. post 1.5.0 version). You can
+ grab a patch for the driver here:
+
+ http://userweb.kernel.org/~dtor/synaptics-no-abspressure.patch
+
+ If unsure, say N.
+
+ This driver exposes some configuration registers via sysfs
+ entries. For further information,
+ see <file:Documentation/input/elantech.txt>.
+
+config MOUSE_PS2_SENTELIC
+ bool "Sentelic Finger Sensing Pad PS/2 protocol extension"
+ depends on MOUSE_PS2
+ help
+ Say Y here if you have a laptop (such as MSI WIND Netbook)
+ with Sentelic Finger Sensing Pad touchpad.
+
+ If unsure, say N.
+
+config MOUSE_PS2_TOUCHKIT
+ bool "eGalax TouchKit PS/2 protocol extension"
+ depends on MOUSE_PS2
+ help
+ Say Y here if you have an eGalax TouchKit PS/2 touchscreen
+ connected to your system.
+
+ If unsure, say N.
+
+config MOUSE_PS2_OLPC
+ bool "OLPC PS/2 mouse protocol extension"
+ depends on MOUSE_PS2 && OLPC
+ help
+ Say Y here if you have an OLPC XO-1 laptop (with built-in
+ PS/2 touchpad/tablet device). The manufacturer calls the
+ touchpad an HGPK.
+
+ If unsure, say N.
+
+config MOUSE_SERIAL
+ tristate "Serial mouse"
+ select SERIO
+ help
+ Say Y here if you have a serial (RS-232, COM port) mouse connected
+ to your system. This includes Sun, MouseSystems, Microsoft,
+ Logitech and all other compatible serial mice.
+
+ If unsure, say N.
+
+ To compile this driver as a module, choose M here: the
+ module will be called sermouse.
+
+config MOUSE_APPLETOUCH
+ tristate "Apple USB Touchpad support"
+ depends on USB_ARCH_HAS_HCD
+ select USB
+ help
+ Say Y here if you want to use an Apple USB Touchpad.
+
+ These are the touchpads that can be found on post-February 2005
+ Apple Powerbooks (prior models have a Synaptics touchpad connected
+ to the ADB bus).
+
+ This driver provides a basic mouse driver but can be interfaced
+ with the synaptics X11 driver to provide acceleration and
+ scrolling in X11.
+
+ For further information, see
+ <file:Documentation/input/appletouch.txt>.
+
+ To compile this driver as a module, choose M here: the
+ module will be called appletouch.
+
+config MOUSE_BCM5974
+ tristate "Apple USB BCM5974 Multitouch trackpad support"
+ depends on USB_ARCH_HAS_HCD
+ select USB
+ help
+ Say Y here if you have an Apple USB BCM5974 Multitouch
+ trackpad.
+
+ The BCM5974 is the multitouch trackpad found in the Macbook
+ Air (JAN2008) and Macbook Pro Penryn (FEB2008) laptops.
+
+ It is also found in the IPhone (2007) and Ipod Touch (2008).
+
+ This driver provides multitouch functionality together with
+ the synaptics X11 driver.
+
+ The interface is currently identical to the appletouch interface,
+ for further information, see
+ <file:Documentation/input/appletouch.txt>.
+
+ To compile this driver as a module, choose M here: the
+ module will be called bcm5974.
+
+config MOUSE_INPORT
+ tristate "InPort/MS/ATIXL busmouse"
+ depends on ISA
+ help
+ Say Y here if you have an InPort, Microsoft or ATI XL busmouse.
+ They are rather rare these days.
+
+ To compile this driver as a module, choose M here: the
+ module will be called inport.
+
+config MOUSE_ATIXL
+ bool "ATI XL variant"
+ depends on MOUSE_INPORT
+ help
+ Say Y here if your mouse is of the ATI XL variety.
+
+config MOUSE_LOGIBM
+ tristate "Logitech busmouse"
+ depends on ISA
+ help
+ Say Y here if you have a Logitech busmouse.
+ They are rather rare these days.
+
+ To compile this driver as a module, choose M here: the
+ module will be called logibm.
+
+config MOUSE_PC110PAD
+ tristate "IBM PC110 touchpad"
+ depends on ISA
+ help
+ Say Y if you have the IBM PC-110 micro-notebook and want its
+ touchpad supported.
+
+ To compile this driver as a module, choose M here: the
+ module will be called pc110pad.
+
+config MOUSE_AMIGA
+ tristate "Amiga mouse"
+ depends on AMIGA
+ help
+ Say Y here if you have an Amiga and want its native mouse
+ supported by the kernel.
+
+ To compile this driver as a module, choose M here: the
+ module will be called amimouse.
+
+config MOUSE_ATARI
+ tristate "Atari mouse"
+ depends on ATARI
+ select ATARI_KBD_CORE
+ help
+ Say Y here if you have an Atari and want its native mouse
+ supported by the kernel.
+
+ To compile this driver as a module, choose M here: the
+ module will be called atarimouse.
+
+config MOUSE_RISCPC
+ tristate "Acorn RiscPC mouse"
+ depends on ARCH_ACORN
+ help
+ Say Y here if you have the Acorn RiscPC computer and want its
+ native mouse supported.
+
+ To compile this driver as a module, choose M here: the
+ module will be called rpcmouse.
+
+config MOUSE_VSXXXAA
+ tristate "DEC VSXXX-AA/GA mouse and VSXXX-AB tablet"
+ select SERIO
+ help
+ Say Y (or M) if you want to use a DEC VSXXX-AA (hockey
+ puck) or a VSXXX-GA (rectangular) mouse. Theses mice are
+ typically used on DECstations or VAXstations, but can also
+ be used on any box capable of RS232 (with some adaptor
+ described in the source file). This driver also works with the
+ digitizer (VSXXX-AB) DEC produced.
+
+config MOUSE_GPIO
+ tristate "GPIO mouse"
+ depends on GENERIC_GPIO
+ select INPUT_POLLDEV
+ help
+ This driver simulates a mouse on GPIO lines of various CPUs (and some
+ other chips).
+
+ Say Y here if your device has buttons or a simple joystick connected
+ directly to GPIO lines. Your board-specific setup logic must also
+ provide a platform device and platform data saying which GPIOs are
+ used.
+
+ To compile this driver as a module, choose M here: the
+ module will be called gpio_mouse.
+
+config MOUSE_PXA930_TRKBALL
+ tristate "PXA930 Trackball mouse"
+ depends on CPU_PXA930 || CPU_PXA935
+ help
+ Say Y here to support PXA930 Trackball mouse.
+
+config MOUSE_MAPLE
+ tristate "Maple mouse (for the Dreamcast)"
+ depends on MAPLE
+ help
+ This driver supports the Maple mouse on the SEGA Dreamcast.
+
+ Most Dreamcast users, who have a mouse, will say Y here.
+
+ To compile this driver as a module choose M here: the module will be
+ called maplemouse.
+
+config MOUSE_SYNAPTICS_I2C
+ tristate "Synaptics I2C Touchpad support"
+ depends on I2C
+ help
+ This driver supports Synaptics I2C touchpad controller on eXeda
+ mobile device.
+ The device will not work the synaptics X11 driver because
+ (i) it reports only relative coordinates and has no capabilities
+ to report absolute coordinates
+ (ii) the eXeda device itself uses Xfbdev as X Server and it does
+ not allow using xf86-input-* drivers.
+
+ Say y here if you have eXeda device and want to use a Synaptics
+ I2C Touchpad.
+
+ To compile this driver as a module, choose M here: the
+ module will be called synaptics_i2c.
+
+endif
diff --git a/drivers/input/mouse/Makefile b/drivers/input/mouse/Makefile
new file mode 100644
index 0000000..570c84a4
--- /dev/null
+++ b/drivers/input/mouse/Makefile
@@ -0,0 +1,32 @@
+#
+# Makefile for the mouse drivers.
+#
+
+# Each configuration option enables a list of files.
+
+obj-$(CONFIG_MOUSE_AMIGA) += amimouse.o
+obj-$(CONFIG_MOUSE_APPLETOUCH) += appletouch.o
+obj-$(CONFIG_MOUSE_ATARI) += atarimouse.o
+obj-$(CONFIG_MOUSE_BCM5974) += bcm5974.o
+obj-$(CONFIG_MOUSE_GPIO) += gpio_mouse.o
+obj-$(CONFIG_MOUSE_INPORT) += inport.o
+obj-$(CONFIG_MOUSE_LOGIBM) += logibm.o
+obj-$(CONFIG_MOUSE_MAPLE) += maplemouse.o
+obj-$(CONFIG_MOUSE_PC110PAD) += pc110pad.o
+obj-$(CONFIG_MOUSE_PS2) += psmouse.o
+obj-$(CONFIG_MOUSE_PXA930_TRKBALL) += pxa930_trkball.o
+obj-$(CONFIG_MOUSE_RISCPC) += rpcmouse.o
+obj-$(CONFIG_MOUSE_SERIAL) += sermouse.o
+obj-$(CONFIG_MOUSE_SYNAPTICS_I2C) += synaptics_i2c.o
+obj-$(CONFIG_MOUSE_VSXXXAA) += vsxxxaa.o
+
+psmouse-objs := psmouse-base.o synaptics.o
+
+psmouse-$(CONFIG_MOUSE_PS2_ALPS) += alps.o
+psmouse-$(CONFIG_MOUSE_PS2_ELANTECH) += elantech.o
+psmouse-$(CONFIG_MOUSE_PS2_OLPC) += hgpk.o
+psmouse-$(CONFIG_MOUSE_PS2_LOGIPS2PP) += logips2pp.o
+psmouse-$(CONFIG_MOUSE_PS2_LIFEBOOK) += lifebook.o
+psmouse-$(CONFIG_MOUSE_PS2_SENTELIC) += sentelic.o
+psmouse-$(CONFIG_MOUSE_PS2_TRACKPOINT) += trackpoint.o
+psmouse-$(CONFIG_MOUSE_PS2_TOUCHKIT) += touchkit_ps2.o
diff --git a/drivers/input/mouse/alps.c b/drivers/input/mouse/alps.c
new file mode 100644
index 0000000..9c40c11
--- /dev/null
+++ b/drivers/input/mouse/alps.c
@@ -0,0 +1,775 @@
+/*
+ * ALPS touchpad PS/2 mouse driver
+ *
+ * Copyright (c) 2003 Neil Brown <neilb@cse.unsw.edu.au>
+ * Copyright (c) 2003-2005 Peter Osterlund <petero2@telia.com>
+ * Copyright (c) 2004 Dmitry Torokhov <dtor@mail.ru>
+ * Copyright (c) 2005 Vojtech Pavlik <vojtech@suse.cz>
+ * Copyright (c) 2009 Sebastian Kapfer <sebastian_kapfer@gmx.net>
+ *
+ * ALPS detection, tap switching and status querying info is taken from
+ * tpconfig utility (by C. Scott Ananian and Bruce Kall).
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ */
+
+#include <linux/slab.h>
+#include <linux/input.h>
+#include <linux/serio.h>
+#include <linux/libps2.h>
+
+#include "psmouse.h"
+#include "alps.h"
+
+#define ALPS_OLDPROTO 0x01 /* old style input */
+#define ALPS_DUALPOINT 0x02 /* touchpad has trackstick */
+#define ALPS_PASS 0x04 /* device has a pass-through port */
+
+#define ALPS_WHEEL 0x08 /* hardware wheel present */
+#define ALPS_FW_BK_1 0x10 /* front & back buttons present */
+#define ALPS_FW_BK_2 0x20 /* front & back buttons present */
+#define ALPS_FOUR_BUTTONS 0x40 /* 4 direction button present */
+#define ALPS_PS2_INTERLEAVED 0x80 /* 3-byte PS/2 packet interleaved with
+ 6-byte ALPS packet */
+
+static const struct alps_model_info alps_model_data[] = {
+ { { 0x32, 0x02, 0x14 }, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT }, /* Toshiba Salellite Pro M10 */
+ { { 0x33, 0x02, 0x0a }, 0x88, 0xf8, ALPS_OLDPROTO }, /* UMAX-530T */
+ { { 0x53, 0x02, 0x0a }, 0xf8, 0xf8, 0 },
+ { { 0x53, 0x02, 0x14 }, 0xf8, 0xf8, 0 },
+ { { 0x60, 0x03, 0xc8 }, 0xf8, 0xf8, 0 }, /* HP ze1115 */
+ { { 0x63, 0x02, 0x0a }, 0xf8, 0xf8, 0 },
+ { { 0x63, 0x02, 0x14 }, 0xf8, 0xf8, 0 },
+ { { 0x63, 0x02, 0x28 }, 0xf8, 0xf8, ALPS_FW_BK_2 }, /* Fujitsu Siemens S6010 */
+ { { 0x63, 0x02, 0x3c }, 0x8f, 0x8f, ALPS_WHEEL }, /* Toshiba Satellite S2400-103 */
+ { { 0x63, 0x02, 0x50 }, 0xef, 0xef, ALPS_FW_BK_1 }, /* NEC Versa L320 */
+ { { 0x63, 0x02, 0x64 }, 0xf8, 0xf8, 0 },
+ { { 0x63, 0x03, 0xc8 }, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT }, /* Dell Latitude D800 */
+ { { 0x73, 0x00, 0x0a }, 0xf8, 0xf8, ALPS_DUALPOINT }, /* ThinkPad R61 8918-5QG */
+ { { 0x73, 0x02, 0x0a }, 0xf8, 0xf8, 0 },
+ { { 0x73, 0x02, 0x14 }, 0xf8, 0xf8, ALPS_FW_BK_2 }, /* Ahtec Laptop */
+ { { 0x20, 0x02, 0x0e }, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT }, /* XXX */
+ { { 0x22, 0x02, 0x0a }, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT },
+ { { 0x22, 0x02, 0x14 }, 0xff, 0xff, ALPS_PASS | ALPS_DUALPOINT }, /* Dell Latitude D600 */
+ /* Dell Latitude E5500, E6400, E6500, Precision M4400 */
+ { { 0x62, 0x02, 0x14 }, 0xcf, 0xcf,
+ ALPS_PASS | ALPS_DUALPOINT | ALPS_PS2_INTERLEAVED },
+ { { 0x73, 0x02, 0x50 }, 0xcf, 0xcf, ALPS_FOUR_BUTTONS }, /* Dell Vostro 1400 */
+ { { 0x52, 0x01, 0x14 }, 0xff, 0xff,
+ ALPS_PASS | ALPS_DUALPOINT | ALPS_PS2_INTERLEAVED }, /* Toshiba Tecra A11-11L */
+};
+
+/*
+ * XXX - this entry is suspicious. First byte has zero lower nibble,
+ * which is what a normal mouse would report. Also, the value 0x0e
+ * isn't valid per PS/2 spec.
+ */
+
+/*
+ * PS/2 packet format
+ *
+ * byte 0: 0 0 YSGN XSGN 1 M R L
+ * byte 1: X7 X6 X5 X4 X3 X2 X1 X0
+ * byte 2: Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0
+ *
+ * Note that the device never signals overflow condition.
+ *
+ * ALPS absolute Mode - new format
+ *
+ * byte 0: 1 ? ? ? 1 ? ? ?
+ * byte 1: 0 x6 x5 x4 x3 x2 x1 x0
+ * byte 2: 0 x10 x9 x8 x7 ? fin ges
+ * byte 3: 0 y9 y8 y7 1 M R L
+ * byte 4: 0 y6 y5 y4 y3 y2 y1 y0
+ * byte 5: 0 z6 z5 z4 z3 z2 z1 z0
+ *
+ * Dualpoint device -- interleaved packet format
+ *
+ * byte 0: 1 1 0 0 1 1 1 1
+ * byte 1: 0 x6 x5 x4 x3 x2 x1 x0
+ * byte 2: 0 x10 x9 x8 x7 0 fin ges
+ * byte 3: 0 0 YSGN XSGN 1 1 1 1
+ * byte 4: X7 X6 X5 X4 X3 X2 X1 X0
+ * byte 5: Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0
+ * byte 6: 0 y9 y8 y7 1 m r l
+ * byte 7: 0 y6 y5 y4 y3 y2 y1 y0
+ * byte 8: 0 z6 z5 z4 z3 z2 z1 z0
+ *
+ * CAPITALS = stick, miniscules = touchpad
+ *
+ * ?'s can have different meanings on different models,
+ * such as wheel rotation, extra buttons, stick buttons
+ * on a dualpoint, etc.
+ */
+
+static bool alps_is_valid_first_byte(const struct alps_model_info *model,
+ unsigned char data)
+{
+ return (data & model->mask0) == model->byte0;
+}
+
+static void alps_report_buttons(struct psmouse *psmouse,
+ struct input_dev *dev1, struct input_dev *dev2,
+ int left, int right, int middle)
+{
+ struct input_dev *dev;
+
+ /*
+ * If shared button has already been reported on the
+ * other device (dev2) then this event should be also
+ * sent through that device.
+ */
+ dev = test_bit(BTN_LEFT, dev2->key) ? dev2 : dev1;
+ input_report_key(dev, BTN_LEFT, left);
+
+ dev = test_bit(BTN_RIGHT, dev2->key) ? dev2 : dev1;
+ input_report_key(dev, BTN_RIGHT, right);
+
+ dev = test_bit(BTN_MIDDLE, dev2->key) ? dev2 : dev1;
+ input_report_key(dev, BTN_MIDDLE, middle);
+
+ /*
+ * Sync the _other_ device now, we'll do the first
+ * device later once we report the rest of the events.
+ */
+ input_sync(dev2);
+}
+
+static void alps_process_packet(struct psmouse *psmouse)
+{
+ struct alps_data *priv = psmouse->private;
+ const struct alps_model_info *model = priv->i;
+ unsigned char *packet = psmouse->packet;
+ struct input_dev *dev = psmouse->dev;
+ struct input_dev *dev2 = priv->dev2;
+ int x, y, z, ges, fin, left, right, middle;
+ int back = 0, forward = 0;
+
+ if (model->flags & ALPS_OLDPROTO) {
+ left = packet[2] & 0x10;
+ right = packet[2] & 0x08;
+ middle = 0;
+ x = packet[1] | ((packet[0] & 0x07) << 7);
+ y = packet[4] | ((packet[3] & 0x07) << 7);
+ z = packet[5];
+ } else {
+ left = packet[3] & 1;
+ right = packet[3] & 2;
+ middle = packet[3] & 4;
+ x = packet[1] | ((packet[2] & 0x78) << (7 - 3));
+ y = packet[4] | ((packet[3] & 0x70) << (7 - 4));
+ z = packet[5];
+ }
+
+ if (model->flags & ALPS_FW_BK_1) {
+ back = packet[0] & 0x10;
+ forward = packet[2] & 4;
+ }
+
+ if (model->flags & ALPS_FW_BK_2) {
+ back = packet[3] & 4;
+ forward = packet[2] & 4;
+ if ((middle = forward && back))
+ forward = back = 0;
+ }
+
+ ges = packet[2] & 1;
+ fin = packet[2] & 2;
+
+ if ((model->flags & ALPS_DUALPOINT) && z == 127) {
+ input_report_rel(dev2, REL_X, (x > 383 ? (x - 768) : x));
+ input_report_rel(dev2, REL_Y, -(y > 255 ? (y - 512) : y));
+
+ alps_report_buttons(psmouse, dev2, dev, left, right, middle);
+
+ input_sync(dev2);
+ return;
+ }
+
+ alps_report_buttons(psmouse, dev, dev2, left, right, middle);
+
+ /* Convert hardware tap to a reasonable Z value */
+ if (ges && !fin)
+ z = 40;
+
+ /*
+ * A "tap and drag" operation is reported by the hardware as a transition
+ * from (!fin && ges) to (fin && ges). This should be translated to the
+ * sequence Z>0, Z==0, Z>0, so the Z==0 event has to be generated manually.
+ */
+ if (ges && fin && !priv->prev_fin) {
+ input_report_abs(dev, ABS_X, x);
+ input_report_abs(dev, ABS_Y, y);
+ input_report_abs(dev, ABS_PRESSURE, 0);
+ input_report_key(dev, BTN_TOOL_FINGER, 0);
+ input_sync(dev);
+ }
+ priv->prev_fin = fin;
+
+ if (z > 30)
+ input_report_key(dev, BTN_TOUCH, 1);
+ if (z < 25)
+ input_report_key(dev, BTN_TOUCH, 0);
+
+ if (z > 0) {
+ input_report_abs(dev, ABS_X, x);
+ input_report_abs(dev, ABS_Y, y);
+ }
+
+ input_report_abs(dev, ABS_PRESSURE, z);
+ input_report_key(dev, BTN_TOOL_FINGER, z > 0);
+
+ if (model->flags & ALPS_WHEEL)
+ input_report_rel(dev, REL_WHEEL, ((packet[2] << 1) & 0x08) - ((packet[0] >> 4) & 0x07));
+
+ if (model->flags & (ALPS_FW_BK_1 | ALPS_FW_BK_2)) {
+ input_report_key(dev, BTN_FORWARD, forward);
+ input_report_key(dev, BTN_BACK, back);
+ }
+
+ if (model->flags & ALPS_FOUR_BUTTONS) {
+ input_report_key(dev, BTN_0, packet[2] & 4);
+ input_report_key(dev, BTN_1, packet[0] & 0x10);
+ input_report_key(dev, BTN_2, packet[3] & 4);
+ input_report_key(dev, BTN_3, packet[0] & 0x20);
+ }
+
+ input_sync(dev);
+}
+
+static void alps_report_bare_ps2_packet(struct psmouse *psmouse,
+ unsigned char packet[],
+ bool report_buttons)
+{
+ struct alps_data *priv = psmouse->private;
+ struct input_dev *dev2 = priv->dev2;
+
+ if (report_buttons)
+ alps_report_buttons(psmouse, dev2, psmouse->dev,
+ packet[0] & 1, packet[0] & 2, packet[0] & 4);
+
+ input_report_rel(dev2, REL_X,
+ packet[1] ? packet[1] - ((packet[0] << 4) & 0x100) : 0);
+ input_report_rel(dev2, REL_Y,
+ packet[2] ? ((packet[0] << 3) & 0x100) - packet[2] : 0);
+
+ input_sync(dev2);
+}
+
+static psmouse_ret_t alps_handle_interleaved_ps2(struct psmouse *psmouse)
+{
+ struct alps_data *priv = psmouse->private;
+
+ if (psmouse->pktcnt < 6)
+ return PSMOUSE_GOOD_DATA;
+
+ if (psmouse->pktcnt == 6) {
+ /*
+ * Start a timer to flush the packet if it ends up last
+ * 6-byte packet in the stream. Timer needs to fire
+ * psmouse core times out itself. 20 ms should be enough
+ * to decide if we are getting more data or not.
+ */
+ mod_timer(&priv->timer, jiffies + msecs_to_jiffies(20));
+ return PSMOUSE_GOOD_DATA;
+ }
+
+ del_timer(&priv->timer);
+
+ if (psmouse->packet[6] & 0x80) {
+
+ /*
+ * Highest bit is set - that means we either had
+ * complete ALPS packet and this is start of the
+ * next packet or we got garbage.
+ */
+
+ if (((psmouse->packet[3] |
+ psmouse->packet[4] |
+ psmouse->packet[5]) & 0x80) ||
+ (!alps_is_valid_first_byte(priv->i, psmouse->packet[6]))) {
+ psmouse_dbg(psmouse,
+ "refusing packet %x %x %x %x (suspected interleaved ps/2)\n",
+ psmouse->packet[3], psmouse->packet[4],
+ psmouse->packet[5], psmouse->packet[6]);
+ return PSMOUSE_BAD_DATA;
+ }
+
+ alps_process_packet(psmouse);
+
+ /* Continue with the next packet */
+ psmouse->packet[0] = psmouse->packet[6];
+ psmouse->pktcnt = 1;
+
+ } else {
+
+ /*
+ * High bit is 0 - that means that we indeed got a PS/2
+ * packet in the middle of ALPS packet.
+ *
+ * There is also possibility that we got 6-byte ALPS
+ * packet followed by 3-byte packet from trackpoint. We
+ * can not distinguish between these 2 scenarios but
+ * because the latter is unlikely to happen in course of
+ * normal operation (user would need to press all
+ * buttons on the pad and start moving trackpoint
+ * without touching the pad surface) we assume former.
+ * Even if we are wrong the wost thing that would happen
+ * the cursor would jump but we should not get protocol
+ * de-synchronization.
+ */
+
+ alps_report_bare_ps2_packet(psmouse, &psmouse->packet[3],
+ false);
+
+ /*
+ * Continue with the standard ALPS protocol handling,
+ * but make sure we won't process it as an interleaved
+ * packet again, which may happen if all buttons are
+ * pressed. To avoid this let's reset the 4th bit which
+ * is normally 1.
+ */
+ psmouse->packet[3] = psmouse->packet[6] & 0xf7;
+ psmouse->pktcnt = 4;
+ }
+
+ return PSMOUSE_GOOD_DATA;
+}
+
+static void alps_flush_packet(unsigned long data)
+{
+ struct psmouse *psmouse = (struct psmouse *)data;
+
+ serio_pause_rx(psmouse->ps2dev.serio);
+
+ if (psmouse->pktcnt == 6) {
+
+ /*
+ * We did not any more data in reasonable amount of time.
+ * Validate the last 3 bytes and process as a standard
+ * ALPS packet.
+ */
+ if ((psmouse->packet[3] |
+ psmouse->packet[4] |
+ psmouse->packet[5]) & 0x80) {
+ psmouse_dbg(psmouse,
+ "refusing packet %x %x %x (suspected interleaved ps/2)\n",
+ psmouse->packet[3], psmouse->packet[4],
+ psmouse->packet[5]);
+ } else {
+ alps_process_packet(psmouse);
+ }
+ psmouse->pktcnt = 0;
+ }
+
+ serio_continue_rx(psmouse->ps2dev.serio);
+}
+
+static psmouse_ret_t alps_process_byte(struct psmouse *psmouse)
+{
+ struct alps_data *priv = psmouse->private;
+ const struct alps_model_info *model = priv->i;
+
+ if ((psmouse->packet[0] & 0xc8) == 0x08) { /* PS/2 packet */
+ if (psmouse->pktcnt == 3) {
+ alps_report_bare_ps2_packet(psmouse, psmouse->packet,
+ true);
+ return PSMOUSE_FULL_PACKET;
+ }
+ return PSMOUSE_GOOD_DATA;
+ }
+
+ /* Check for PS/2 packet stuffed in the middle of ALPS packet. */
+
+ if ((model->flags & ALPS_PS2_INTERLEAVED) &&
+ psmouse->pktcnt >= 4 && (psmouse->packet[3] & 0x0f) == 0x0f) {
+ return alps_handle_interleaved_ps2(psmouse);
+ }
+
+ if (!alps_is_valid_first_byte(model, psmouse->packet[0])) {
+ psmouse_dbg(psmouse,
+ "refusing packet[0] = %x (mask0 = %x, byte0 = %x)\n",
+ psmouse->packet[0], model->mask0, model->byte0);
+ return PSMOUSE_BAD_DATA;
+ }
+
+ /* Bytes 2 - 6 should have 0 in the highest bit */
+ if (psmouse->pktcnt >= 2 && psmouse->pktcnt <= 6 &&
+ (psmouse->packet[psmouse->pktcnt - 1] & 0x80)) {
+ psmouse_dbg(psmouse, "refusing packet[%i] = %x\n",
+ psmouse->pktcnt - 1,
+ psmouse->packet[psmouse->pktcnt - 1]);
+ return PSMOUSE_BAD_DATA;
+ }
+
+ if (psmouse->pktcnt == 6) {
+ alps_process_packet(psmouse);
+ return PSMOUSE_FULL_PACKET;
+ }
+
+ return PSMOUSE_GOOD_DATA;
+}
+
+static const struct alps_model_info *alps_get_model(struct psmouse *psmouse, int *version)
+{
+ struct ps2dev *ps2dev = &psmouse->ps2dev;
+ static const unsigned char rates[] = { 0, 10, 20, 40, 60, 80, 100, 200 };
+ unsigned char param[4];
+ int i;
+
+ /*
+ * First try "E6 report".
+ * ALPS should return 0,0,10 or 0,0,100 if no buttons are pressed.
+ * The bits 0-2 of the first byte will be 1s if some buttons are
+ * pressed.
+ */
+ param[0] = 0;
+ if (ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES) ||
+ ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) ||
+ ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) ||
+ ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11))
+ return NULL;
+
+ param[0] = param[1] = param[2] = 0xff;
+ if (ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO))
+ return NULL;
+
+ psmouse_dbg(psmouse, "E6 report: %2.2x %2.2x %2.2x",
+ param[0], param[1], param[2]);
+
+ if ((param[0] & 0xf8) != 0 || param[1] != 0 ||
+ (param[2] != 10 && param[2] != 100))
+ return NULL;
+
+ /*
+ * Now try "E7 report". Allowed responses are in
+ * alps_model_data[].signature
+ */
+ param[0] = 0;
+ if (ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES) ||
+ ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE21) ||
+ ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE21) ||
+ ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE21))
+ return NULL;
+
+ param[0] = param[1] = param[2] = 0xff;
+ if (ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO))
+ return NULL;
+
+ psmouse_dbg(psmouse, "E7 report: %2.2x %2.2x %2.2x",
+ param[0], param[1], param[2]);
+
+ if (version) {
+ for (i = 0; i < ARRAY_SIZE(rates) && param[2] != rates[i]; i++)
+ /* empty */;
+ *version = (param[0] << 8) | (param[1] << 4) | i;
+ }
+
+ for (i = 0; i < ARRAY_SIZE(alps_model_data); i++)
+ if (!memcmp(param, alps_model_data[i].signature,
+ sizeof(alps_model_data[i].signature)))
+ return alps_model_data + i;
+
+ return NULL;
+}
+
+/*
+ * For DualPoint devices select the device that should respond to
+ * subsequent commands. It looks like glidepad is behind stickpointer,
+ * I'd thought it would be other way around...
+ */
+static int alps_passthrough_mode(struct psmouse *psmouse, bool enable)
+{
+ struct ps2dev *ps2dev = &psmouse->ps2dev;
+ int cmd = enable ? PSMOUSE_CMD_SETSCALE21 : PSMOUSE_CMD_SETSCALE11;
+
+ if (ps2_command(ps2dev, NULL, cmd) ||
+ ps2_command(ps2dev, NULL, cmd) ||
+ ps2_command(ps2dev, NULL, cmd) ||
+ ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE))
+ return -1;
+
+ /* we may get 3 more bytes, just ignore them */
+ ps2_drain(ps2dev, 3, 100);
+
+ return 0;
+}
+
+static int alps_absolute_mode(struct psmouse *psmouse)
+{
+ struct ps2dev *ps2dev = &psmouse->ps2dev;
+
+ /* Try ALPS magic knock - 4 disable before enable */
+ if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) ||
+ ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) ||
+ ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) ||
+ ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) ||
+ ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE))
+ return -1;
+
+ /*
+ * Switch mouse to poll (remote) mode so motion data will not
+ * get in our way
+ */
+ return ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETPOLL);
+}
+
+static int alps_get_status(struct psmouse *psmouse, char *param)
+{
+ struct ps2dev *ps2dev = &psmouse->ps2dev;
+
+ /* Get status: 0xF5 0xF5 0xF5 0xE9 */
+ if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) ||
+ ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) ||
+ ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) ||
+ ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO))
+ return -1;
+
+ psmouse_dbg(psmouse, "Status: %2.2x %2.2x %2.2x",
+ param[0], param[1], param[2]);
+
+ return 0;
+}
+
+/*
+ * Turn touchpad tapping on or off. The sequences are:
+ * 0xE9 0xF5 0xF5 0xF3 0x0A to enable,
+ * 0xE9 0xF5 0xF5 0xE8 0x00 to disable.
+ * My guess that 0xE9 (GetInfo) is here as a sync point.
+ * For models that also have stickpointer (DualPoints) its tapping
+ * is controlled separately (0xE6 0xE6 0xE6 0xF3 0x14|0x0A) but
+ * we don't fiddle with it.
+ */
+static int alps_tap_mode(struct psmouse *psmouse, int enable)
+{
+ struct ps2dev *ps2dev = &psmouse->ps2dev;
+ int cmd = enable ? PSMOUSE_CMD_SETRATE : PSMOUSE_CMD_SETRES;
+ unsigned char tap_arg = enable ? 0x0A : 0x00;
+ unsigned char param[4];
+
+ if (ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO) ||
+ ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) ||
+ ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) ||
+ ps2_command(ps2dev, &tap_arg, cmd))
+ return -1;
+
+ if (alps_get_status(psmouse, param))
+ return -1;
+
+ return 0;
+}
+
+/*
+ * alps_poll() - poll the touchpad for current motion packet.
+ * Used in resync.
+ */
+static int alps_poll(struct psmouse *psmouse)
+{
+ struct alps_data *priv = psmouse->private;
+ unsigned char buf[6];
+ bool poll_failed;
+
+ if (priv->i->flags & ALPS_PASS)
+ alps_passthrough_mode(psmouse, true);
+
+ poll_failed = ps2_command(&psmouse->ps2dev, buf,
+ PSMOUSE_CMD_POLL | (psmouse->pktsize << 8)) < 0;
+
+ if (priv->i->flags & ALPS_PASS)
+ alps_passthrough_mode(psmouse, false);
+
+ if (poll_failed || (buf[0] & priv->i->mask0) != priv->i->byte0)
+ return -1;
+
+ if ((psmouse->badbyte & 0xc8) == 0x08) {
+/*
+ * Poll the track stick ...
+ */
+ if (ps2_command(&psmouse->ps2dev, buf, PSMOUSE_CMD_POLL | (3 << 8)))
+ return -1;
+ }
+
+ memcpy(psmouse->packet, buf, sizeof(buf));
+ return 0;
+}
+
+static int alps_hw_init(struct psmouse *psmouse)
+{
+ struct alps_data *priv = psmouse->private;
+ const struct alps_model_info *model = priv->i;
+
+ if ((model->flags & ALPS_PASS) &&
+ alps_passthrough_mode(psmouse, true)) {
+ return -1;
+ }
+
+ if (alps_tap_mode(psmouse, true)) {
+ psmouse_warn(psmouse, "Failed to enable hardware tapping\n");
+ return -1;
+ }
+
+ if (alps_absolute_mode(psmouse)) {
+ psmouse_err(psmouse, "Failed to enable absolute mode\n");
+ return -1;
+ }
+
+ if ((model->flags & ALPS_PASS) &&
+ alps_passthrough_mode(psmouse, false)) {
+ return -1;
+ }
+
+ /* ALPS needs stream mode, otherwise it won't report any data */
+ if (ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETSTREAM)) {
+ psmouse_err(psmouse, "Failed to enable stream mode\n");
+ return -1;
+ }
+
+ return 0;
+}
+
+static int alps_reconnect(struct psmouse *psmouse)
+{
+ const struct alps_model_info *model;
+
+ psmouse_reset(psmouse);
+
+ model = alps_get_model(psmouse, NULL);
+ if (!model)
+ return -1;
+
+ return alps_hw_init(psmouse);
+}
+
+static void alps_disconnect(struct psmouse *psmouse)
+{
+ struct alps_data *priv = psmouse->private;
+
+ psmouse_reset(psmouse);
+ del_timer_sync(&priv->timer);
+ input_unregister_device(priv->dev2);
+ kfree(priv);
+}
+
+int alps_init(struct psmouse *psmouse)
+{
+ struct alps_data *priv;
+ const struct alps_model_info *model;
+ struct input_dev *dev1 = psmouse->dev, *dev2;
+ int version;
+
+ priv = kzalloc(sizeof(struct alps_data), GFP_KERNEL);
+ dev2 = input_allocate_device();
+ if (!priv || !dev2)
+ goto init_fail;
+
+ priv->dev2 = dev2;
+ setup_timer(&priv->timer, alps_flush_packet, (unsigned long)psmouse);
+
+ psmouse->private = priv;
+
+ model = alps_get_model(psmouse, &version);
+ if (!model)
+ goto init_fail;
+
+ priv->i = model;
+
+ if (alps_hw_init(psmouse))
+ goto init_fail;
+
+ /*
+ * Undo part of setup done for us by psmouse core since touchpad
+ * is not a relative device.
+ */
+ __clear_bit(EV_REL, dev1->evbit);
+ __clear_bit(REL_X, dev1->relbit);
+ __clear_bit(REL_Y, dev1->relbit);
+
+ /*
+ * Now set up our capabilities.
+ */
+ dev1->evbit[BIT_WORD(EV_KEY)] |= BIT_MASK(EV_KEY);
+ dev1->keybit[BIT_WORD(BTN_TOUCH)] |= BIT_MASK(BTN_TOUCH);
+ dev1->keybit[BIT_WORD(BTN_TOOL_FINGER)] |= BIT_MASK(BTN_TOOL_FINGER);
+ dev1->keybit[BIT_WORD(BTN_LEFT)] |=
+ BIT_MASK(BTN_LEFT) | BIT_MASK(BTN_RIGHT);
+
+ dev1->evbit[BIT_WORD(EV_ABS)] |= BIT_MASK(EV_ABS);
+ input_set_abs_params(dev1, ABS_X, 0, 1023, 0, 0);
+ input_set_abs_params(dev1, ABS_Y, 0, 767, 0, 0);
+ input_set_abs_params(dev1, ABS_PRESSURE, 0, 127, 0, 0);
+
+ if (model->flags & ALPS_WHEEL) {
+ dev1->evbit[BIT_WORD(EV_REL)] |= BIT_MASK(EV_REL);
+ dev1->relbit[BIT_WORD(REL_WHEEL)] |= BIT_MASK(REL_WHEEL);
+ }
+
+ if (model->flags & (ALPS_FW_BK_1 | ALPS_FW_BK_2)) {
+ dev1->keybit[BIT_WORD(BTN_FORWARD)] |= BIT_MASK(BTN_FORWARD);
+ dev1->keybit[BIT_WORD(BTN_BACK)] |= BIT_MASK(BTN_BACK);
+ }
+
+ if (model->flags & ALPS_FOUR_BUTTONS) {
+ dev1->keybit[BIT_WORD(BTN_0)] |= BIT_MASK(BTN_0);
+ dev1->keybit[BIT_WORD(BTN_1)] |= BIT_MASK(BTN_1);
+ dev1->keybit[BIT_WORD(BTN_2)] |= BIT_MASK(BTN_2);
+ dev1->keybit[BIT_WORD(BTN_3)] |= BIT_MASK(BTN_3);
+ } else {
+ dev1->keybit[BIT_WORD(BTN_MIDDLE)] |= BIT_MASK(BTN_MIDDLE);
+ }
+
+ snprintf(priv->phys, sizeof(priv->phys), "%s/input1", psmouse->ps2dev.serio->phys);
+ dev2->phys = priv->phys;
+ dev2->name = (model->flags & ALPS_DUALPOINT) ? "DualPoint Stick" : "PS/2 Mouse";
+ dev2->id.bustype = BUS_I8042;
+ dev2->id.vendor = 0x0002;
+ dev2->id.product = PSMOUSE_ALPS;
+ dev2->id.version = 0x0000;
+ dev2->dev.parent = &psmouse->ps2dev.serio->dev;
+
+ dev2->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL);
+ dev2->relbit[BIT_WORD(REL_X)] = BIT_MASK(REL_X) | BIT_MASK(REL_Y);
+ dev2->keybit[BIT_WORD(BTN_LEFT)] =
+ BIT_MASK(BTN_LEFT) | BIT_MASK(BTN_MIDDLE) | BIT_MASK(BTN_RIGHT);
+
+ if (input_register_device(priv->dev2))
+ goto init_fail;
+
+ psmouse->protocol_handler = alps_process_byte;
+ psmouse->poll = alps_poll;
+ psmouse->disconnect = alps_disconnect;
+ psmouse->reconnect = alps_reconnect;
+ psmouse->pktsize = 6;
+
+ /* We are having trouble resyncing ALPS touchpads so disable it for now */
+ psmouse->resync_time = 0;
+
+ return 0;
+
+init_fail:
+ psmouse_reset(psmouse);
+ input_free_device(dev2);
+ kfree(priv);
+ psmouse->private = NULL;
+ return -1;
+}
+
+int alps_detect(struct psmouse *psmouse, bool set_properties)
+{
+ int version;
+ const struct alps_model_info *model;
+
+ model = alps_get_model(psmouse, &version);
+ if (!model)
+ return -1;
+
+ if (set_properties) {
+ psmouse->vendor = "ALPS";
+ psmouse->name = model->flags & ALPS_DUALPOINT ?
+ "DualPoint TouchPad" : "GlidePoint";
+ psmouse->model = version;
+ }
+ return 0;
+}
+
diff --git a/drivers/input/mouse/alps.h b/drivers/input/mouse/alps.h
new file mode 100644
index 0000000..904ed8b
--- /dev/null
+++ b/drivers/input/mouse/alps.h
@@ -0,0 +1,43 @@
+/*
+ * ALPS touchpad PS/2 mouse driver
+ *
+ * Copyright (c) 2003 Peter Osterlund <petero2@telia.com>
+ * Copyright (c) 2005 Vojtech Pavlik <vojtech@suse.cz>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ */
+
+#ifndef _ALPS_H
+#define _ALPS_H
+
+struct alps_model_info {
+ unsigned char signature[3];
+ unsigned char byte0, mask0;
+ unsigned char flags;
+};
+
+struct alps_data {
+ struct input_dev *dev2; /* Relative device */
+ char phys[32]; /* Phys */
+ const struct alps_model_info *i;/* Info */
+ int prev_fin; /* Finger bit from previous packet */
+ struct timer_list timer;
+};
+
+#ifdef CONFIG_MOUSE_PS2_ALPS
+int alps_detect(struct psmouse *psmouse, bool set_properties);
+int alps_init(struct psmouse *psmouse);
+#else
+inline int alps_detect(struct psmouse *psmouse, bool set_properties)
+{
+ return -ENOSYS;
+}
+inline int alps_init(struct psmouse *psmouse)
+{
+ return -ENOSYS;
+}
+#endif /* CONFIG_MOUSE_PS2_ALPS */
+
+#endif
diff --git a/drivers/input/mouse/amimouse.c b/drivers/input/mouse/amimouse.c
new file mode 100644
index 0000000..ff5f61a
--- /dev/null
+++ b/drivers/input/mouse/amimouse.c
@@ -0,0 +1,164 @@
+/*
+ * Amiga mouse driver for Linux/m68k
+ *
+ * Copyright (c) 2000-2002 Vojtech Pavlik
+ *
+ * Based on the work of:
+ * Michael Rausch James Banks
+ * Matther Dillon David Giller
+ * Nathan Laredo Linus Torvalds
+ * Johan Myreen Jes Sorensen
+ * Russell King
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/input.h>
+#include <linux/interrupt.h>
+#include <linux/platform_device.h>
+
+#include <asm/irq.h>
+#include <asm/setup.h>
+#include <asm/system.h>
+#include <asm/uaccess.h>
+#include <asm/amigahw.h>
+#include <asm/amigaints.h>
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
+MODULE_DESCRIPTION("Amiga mouse driver");
+MODULE_LICENSE("GPL");
+
+static int amimouse_lastx, amimouse_lasty;
+
+static irqreturn_t amimouse_interrupt(int irq, void *data)
+{
+ struct input_dev *dev = data;
+ unsigned short joy0dat, potgor;
+ int nx, ny, dx, dy;
+
+ joy0dat = amiga_custom.joy0dat;
+
+ nx = joy0dat & 0xff;
+ ny = joy0dat >> 8;
+
+ dx = nx - amimouse_lastx;
+ dy = ny - amimouse_lasty;
+
+ if (dx < -127) dx = (256 + nx) - amimouse_lastx;
+ if (dx > 127) dx = (nx - 256) - amimouse_lastx;
+ if (dy < -127) dy = (256 + ny) - amimouse_lasty;
+ if (dy > 127) dy = (ny - 256) - amimouse_lasty;
+
+ amimouse_lastx = nx;
+ amimouse_lasty = ny;
+
+ potgor = amiga_custom.potgor;
+
+ input_report_rel(dev, REL_X, dx);
+ input_report_rel(dev, REL_Y, dy);
+
+ input_report_key(dev, BTN_LEFT, ciaa.pra & 0x40);
+ input_report_key(dev, BTN_MIDDLE, potgor & 0x0100);
+ input_report_key(dev, BTN_RIGHT, potgor & 0x0400);
+
+ input_sync(dev);
+
+ return IRQ_HANDLED;
+}
+
+static int amimouse_open(struct input_dev *dev)
+{
+ unsigned short joy0dat;
+ int error;
+
+ joy0dat = amiga_custom.joy0dat;
+
+ amimouse_lastx = joy0dat & 0xff;
+ amimouse_lasty = joy0dat >> 8;
+
+ error = request_irq(IRQ_AMIGA_VERTB, amimouse_interrupt, 0, "amimouse",
+ dev);
+ if (error)
+ dev_err(&dev->dev, "Can't allocate irq %d\n", IRQ_AMIGA_VERTB);
+
+ return error;
+}
+
+static void amimouse_close(struct input_dev *dev)
+{
+ free_irq(IRQ_AMIGA_VERTB, dev);
+}
+
+static int __init amimouse_probe(struct platform_device *pdev)
+{
+ int err;
+ struct input_dev *dev;
+
+ dev = input_allocate_device();
+ if (!dev)
+ return -ENOMEM;
+
+ dev->name = pdev->name;
+ dev->phys = "amimouse/input0";
+ dev->id.bustype = BUS_AMIGA;
+ dev->id.vendor = 0x0001;
+ dev->id.product = 0x0002;
+ dev->id.version = 0x0100;
+
+ dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL);
+ dev->relbit[0] = BIT_MASK(REL_X) | BIT_MASK(REL_Y);
+ dev->keybit[BIT_WORD(BTN_LEFT)] = BIT_MASK(BTN_LEFT) |
+ BIT_MASK(BTN_MIDDLE) | BIT_MASK(BTN_RIGHT);
+ dev->open = amimouse_open;
+ dev->close = amimouse_close;
+ dev->dev.parent = &pdev->dev;
+
+ err = input_register_device(dev);
+ if (err) {
+ input_free_device(dev);
+ return err;
+ }
+
+ platform_set_drvdata(pdev, dev);
+
+ return 0;
+}
+
+static int __exit amimouse_remove(struct platform_device *pdev)
+{
+ struct input_dev *dev = platform_get_drvdata(pdev);
+
+ platform_set_drvdata(pdev, NULL);
+ input_unregister_device(dev);
+ return 0;
+}
+
+static struct platform_driver amimouse_driver = {
+ .remove = __exit_p(amimouse_remove),
+ .driver = {
+ .name = "amiga-mouse",
+ .owner = THIS_MODULE,
+ },
+};
+
+static int __init amimouse_init(void)
+{
+ return platform_driver_probe(&amimouse_driver, amimouse_probe);
+}
+
+module_init(amimouse_init);
+
+static void __exit amimouse_exit(void)
+{
+ platform_driver_unregister(&amimouse_driver);
+}
+
+module_exit(amimouse_exit);
+
+MODULE_ALIAS("platform:amiga-mouse");
diff --git a/drivers/input/mouse/appletouch.c b/drivers/input/mouse/appletouch.c
new file mode 100644
index 0000000..b77f999
--- /dev/null
+++ b/drivers/input/mouse/appletouch.c
@@ -0,0 +1,952 @@
+/*
+ * Apple USB Touchpad (for post-February 2005 PowerBooks and MacBooks) driver
+ *
+ * Copyright (C) 2001-2004 Greg Kroah-Hartman (greg@kroah.com)
+ * Copyright (C) 2005-2008 Johannes Berg (johannes@sipsolutions.net)
+ * Copyright (C) 2005-2008 Stelian Pop (stelian@popies.net)
+ * Copyright (C) 2005 Frank Arnold (frank@scirocco-5v-turbo.de)
+ * Copyright (C) 2005 Peter Osterlund (petero2@telia.com)
+ * Copyright (C) 2005 Michael Hanselmann (linux-kernel@hansmi.ch)
+ * Copyright (C) 2006 Nicolas Boichat (nicolas@boichat.ch)
+ * Copyright (C) 2007-2008 Sven Anders (anders@anduras.de)
+ *
+ * Thanks to Alex Harper <basilisk@foobox.net> for his inputs.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/usb/input.h>
+
+/*
+ * Note: We try to keep the touchpad aspect ratio while still doing only
+ * simple arithmetics:
+ * 0 <= x <= (xsensors - 1) * xfact
+ * 0 <= y <= (ysensors - 1) * yfact
+ */
+struct atp_info {
+ int xsensors; /* number of X sensors */
+ int xsensors_17; /* 17" models have more sensors */
+ int ysensors; /* number of Y sensors */
+ int xfact; /* X multiplication factor */
+ int yfact; /* Y multiplication factor */
+ int datalen; /* size of USB transfers */
+ void (*callback)(struct urb *); /* callback function */
+};
+
+static void atp_complete_geyser_1_2(struct urb *urb);
+static void atp_complete_geyser_3_4(struct urb *urb);
+
+static const struct atp_info fountain_info = {
+ .xsensors = 16,
+ .xsensors_17 = 26,
+ .ysensors = 16,
+ .xfact = 64,
+ .yfact = 43,
+ .datalen = 81,
+ .callback = atp_complete_geyser_1_2,
+};
+
+static const struct atp_info geyser1_info = {
+ .xsensors = 16,
+ .xsensors_17 = 26,
+ .ysensors = 16,
+ .xfact = 64,
+ .yfact = 43,
+ .datalen = 81,
+ .callback = atp_complete_geyser_1_2,
+};
+
+static const struct atp_info geyser2_info = {
+ .xsensors = 15,
+ .xsensors_17 = 20,
+ .ysensors = 9,
+ .xfact = 64,
+ .yfact = 43,
+ .datalen = 64,
+ .callback = atp_complete_geyser_1_2,
+};
+
+static const struct atp_info geyser3_info = {
+ .xsensors = 20,
+ .ysensors = 10,
+ .xfact = 64,
+ .yfact = 64,
+ .datalen = 64,
+ .callback = atp_complete_geyser_3_4,
+};
+
+static const struct atp_info geyser4_info = {
+ .xsensors = 20,
+ .ysensors = 10,
+ .xfact = 64,
+ .yfact = 64,
+ .datalen = 64,
+ .callback = atp_complete_geyser_3_4,
+};
+
+#define ATP_DEVICE(prod, info) \
+{ \
+ .match_flags = USB_DEVICE_ID_MATCH_DEVICE | \
+ USB_DEVICE_ID_MATCH_INT_CLASS | \
+ USB_DEVICE_ID_MATCH_INT_PROTOCOL, \
+ .idVendor = 0x05ac, /* Apple */ \
+ .idProduct = (prod), \
+ .bInterfaceClass = 0x03, \
+ .bInterfaceProtocol = 0x02, \
+ .driver_info = (unsigned long) &info, \
+}
+
+/*
+ * Table of devices (Product IDs) that work with this driver.
+ * (The names come from Info.plist in AppleUSBTrackpad.kext,
+ * According to Info.plist Geyser IV is the same as Geyser III.)
+ */
+
+static struct usb_device_id atp_table[] = {
+ /* PowerBooks Feb 2005, iBooks G4 */
+ ATP_DEVICE(0x020e, fountain_info), /* FOUNTAIN ANSI */
+ ATP_DEVICE(0x020f, fountain_info), /* FOUNTAIN ISO */
+ ATP_DEVICE(0x030a, fountain_info), /* FOUNTAIN TP ONLY */
+ ATP_DEVICE(0x030b, geyser1_info), /* GEYSER 1 TP ONLY */
+
+ /* PowerBooks Oct 2005 */
+ ATP_DEVICE(0x0214, geyser2_info), /* GEYSER 2 ANSI */
+ ATP_DEVICE(0x0215, geyser2_info), /* GEYSER 2 ISO */
+ ATP_DEVICE(0x0216, geyser2_info), /* GEYSER 2 JIS */
+
+ /* Core Duo MacBook & MacBook Pro */
+ ATP_DEVICE(0x0217, geyser3_info), /* GEYSER 3 ANSI */
+ ATP_DEVICE(0x0218, geyser3_info), /* GEYSER 3 ISO */
+ ATP_DEVICE(0x0219, geyser3_info), /* GEYSER 3 JIS */
+
+ /* Core2 Duo MacBook & MacBook Pro */
+ ATP_DEVICE(0x021a, geyser4_info), /* GEYSER 4 ANSI */
+ ATP_DEVICE(0x021b, geyser4_info), /* GEYSER 4 ISO */
+ ATP_DEVICE(0x021c, geyser4_info), /* GEYSER 4 JIS */
+
+ /* Core2 Duo MacBook3,1 */
+ ATP_DEVICE(0x0229, geyser4_info), /* GEYSER 4 HF ANSI */
+ ATP_DEVICE(0x022a, geyser4_info), /* GEYSER 4 HF ISO */
+ ATP_DEVICE(0x022b, geyser4_info), /* GEYSER 4 HF JIS */
+
+ /* Terminating entry */
+ { }
+};
+MODULE_DEVICE_TABLE(usb, atp_table);
+
+/* maximum number of sensors */
+#define ATP_XSENSORS 26
+#define ATP_YSENSORS 16
+
+/* amount of fuzz this touchpad generates */
+#define ATP_FUZZ 16
+
+/* maximum pressure this driver will report */
+#define ATP_PRESSURE 300
+
+/*
+ * Threshold for the touchpad sensors. Any change less than ATP_THRESHOLD is
+ * ignored.
+ */
+#define ATP_THRESHOLD 5
+
+/* Geyser initialization constants */
+#define ATP_GEYSER_MODE_READ_REQUEST_ID 1
+#define ATP_GEYSER_MODE_WRITE_REQUEST_ID 9
+#define ATP_GEYSER_MODE_REQUEST_VALUE 0x300
+#define ATP_GEYSER_MODE_REQUEST_INDEX 0
+#define ATP_GEYSER_MODE_VENDOR_VALUE 0x04
+
+/**
+ * enum atp_status_bits - status bit meanings
+ *
+ * These constants represent the meaning of the status bits.
+ * (only Geyser 3/4)
+ *
+ * @ATP_STATUS_BUTTON: The button was pressed
+ * @ATP_STATUS_BASE_UPDATE: Update of the base values (untouched pad)
+ * @ATP_STATUS_FROM_RESET: Reset previously performed
+ */
+enum atp_status_bits {
+ ATP_STATUS_BUTTON = BIT(0),
+ ATP_STATUS_BASE_UPDATE = BIT(2),
+ ATP_STATUS_FROM_RESET = BIT(4),
+};
+
+/* Structure to hold all of our device specific stuff */
+struct atp {
+ char phys[64];
+ struct usb_device *udev; /* usb device */
+ struct urb *urb; /* usb request block */
+ u8 *data; /* transferred data */
+ struct input_dev *input; /* input dev */
+ const struct atp_info *info; /* touchpad model */
+ bool open;
+ bool valid; /* are the samples valid? */
+ bool size_detect_done;
+ bool overflow_warned;
+ int x_old; /* last reported x/y, */
+ int y_old; /* used for smoothing */
+ signed char xy_cur[ATP_XSENSORS + ATP_YSENSORS];
+ signed char xy_old[ATP_XSENSORS + ATP_YSENSORS];
+ int xy_acc[ATP_XSENSORS + ATP_YSENSORS];
+ int idlecount; /* number of empty packets */
+ struct work_struct work;
+};
+
+#define dbg_dump(msg, tab) \
+ if (debug > 1) { \
+ int __i; \
+ printk(KERN_DEBUG "appletouch: %s", msg); \
+ for (__i = 0; __i < ATP_XSENSORS + ATP_YSENSORS; __i++) \
+ printk(" %02x", tab[__i]); \
+ printk("\n"); \
+ }
+
+#define dprintk(format, a...) \
+ do { \
+ if (debug) \
+ printk(KERN_DEBUG format, ##a); \
+ } while (0)
+
+MODULE_AUTHOR("Johannes Berg");
+MODULE_AUTHOR("Stelian Pop");
+MODULE_AUTHOR("Frank Arnold");
+MODULE_AUTHOR("Michael Hanselmann");
+MODULE_AUTHOR("Sven Anders");
+MODULE_DESCRIPTION("Apple PowerBook and MacBook USB touchpad driver");
+MODULE_LICENSE("GPL");
+
+/*
+ * Make the threshold a module parameter
+ */
+static int threshold = ATP_THRESHOLD;
+module_param(threshold, int, 0644);
+MODULE_PARM_DESC(threshold, "Discard any change in data from a sensor"
+ " (the trackpad has many of these sensors)"
+ " less than this value.");
+
+static int debug;
+module_param(debug, int, 0644);
+MODULE_PARM_DESC(debug, "Activate debugging output");
+
+/*
+ * By default newer Geyser devices send standard USB HID mouse
+ * packets (Report ID 2). This code changes device mode, so it
+ * sends raw sensor reports (Report ID 5).
+ */
+static int atp_geyser_init(struct usb_device *udev)
+{
+ char *data;
+ int size;
+ int i;
+ int ret;
+
+ data = kmalloc(8, GFP_KERNEL);
+ if (!data) {
+ err("Out of memory");
+ return -ENOMEM;
+ }
+
+ size = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
+ ATP_GEYSER_MODE_READ_REQUEST_ID,
+ USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE,
+ ATP_GEYSER_MODE_REQUEST_VALUE,
+ ATP_GEYSER_MODE_REQUEST_INDEX, data, 8, 5000);
+
+ if (size != 8) {
+ dprintk("atp_geyser_init: read error\n");
+ for (i = 0; i < 8; i++)
+ dprintk("appletouch[%d]: %d\n", i, data[i]);
+
+ err("Failed to read mode from device.");
+ ret = -EIO;
+ goto out_free;
+ }
+
+ /* Apply the mode switch */
+ data[0] = ATP_GEYSER_MODE_VENDOR_VALUE;
+
+ size = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
+ ATP_GEYSER_MODE_WRITE_REQUEST_ID,
+ USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE,
+ ATP_GEYSER_MODE_REQUEST_VALUE,
+ ATP_GEYSER_MODE_REQUEST_INDEX, data, 8, 5000);
+
+ if (size != 8) {
+ dprintk("atp_geyser_init: write error\n");
+ for (i = 0; i < 8; i++)
+ dprintk("appletouch[%d]: %d\n", i, data[i]);
+
+ err("Failed to request geyser raw mode");
+ ret = -EIO;
+ goto out_free;
+ }
+ ret = 0;
+out_free:
+ kfree(data);
+ return ret;
+}
+
+/*
+ * Reinitialise the device. This usually stops stream of empty packets
+ * coming from it.
+ */
+static void atp_reinit(struct work_struct *work)
+{
+ struct atp *dev = container_of(work, struct atp, work);
+ struct usb_device *udev = dev->udev;
+ int retval;
+
+ dprintk("appletouch: putting appletouch to sleep (reinit)\n");
+ atp_geyser_init(udev);
+
+ retval = usb_submit_urb(dev->urb, GFP_ATOMIC);
+ if (retval)
+ err("atp_reinit: usb_submit_urb failed with error %d",
+ retval);
+}
+
+static int atp_calculate_abs(int *xy_sensors, int nb_sensors, int fact,
+ int *z, int *fingers)
+{
+ int i;
+ /* values to calculate mean */
+ int pcum = 0, psum = 0;
+ int is_increasing = 0;
+
+ *fingers = 0;
+
+ for (i = 0; i < nb_sensors; i++) {
+ if (xy_sensors[i] < threshold) {
+ if (is_increasing)
+ is_increasing = 0;
+
+ continue;
+ }
+
+ /*
+ * Makes the finger detection more versatile. For example,
+ * two fingers with no gap will be detected. Also, my
+ * tests show it less likely to have intermittent loss
+ * of multiple finger readings while moving around (scrolling).
+ *
+ * Changes the multiple finger detection to counting humps on
+ * sensors (transitions from nonincreasing to increasing)
+ * instead of counting transitions from low sensors (no
+ * finger reading) to high sensors (finger above
+ * sensor)
+ *
+ * - Jason Parekh <jasonparekh@gmail.com>
+ */
+ if (i < 1 ||
+ (!is_increasing && xy_sensors[i - 1] < xy_sensors[i])) {
+ (*fingers)++;
+ is_increasing = 1;
+ } else if (i > 0 && (xy_sensors[i - 1] - xy_sensors[i] > threshold)) {
+ is_increasing = 0;
+ }
+
+ /*
+ * Subtracts threshold so a high sensor that just passes the
+ * threshold won't skew the calculated absolute coordinate.
+ * Fixes an issue where slowly moving the mouse would
+ * occasionally jump a number of pixels (slowly moving the
+ * finger makes this issue most apparent.)
+ */
+ pcum += (xy_sensors[i] - threshold) * i;
+ psum += (xy_sensors[i] - threshold);
+ }
+
+ if (psum > 0) {
+ *z = psum;
+ return pcum * fact / psum;
+ }
+
+ return 0;
+}
+
+static inline void atp_report_fingers(struct input_dev *input, int fingers)
+{
+ input_report_key(input, BTN_TOOL_FINGER, fingers == 1);
+ input_report_key(input, BTN_TOOL_DOUBLETAP, fingers == 2);
+ input_report_key(input, BTN_TOOL_TRIPLETAP, fingers > 2);
+}
+
+/* Check URB status and for correct length of data package */
+
+#define ATP_URB_STATUS_SUCCESS 0
+#define ATP_URB_STATUS_ERROR 1
+#define ATP_URB_STATUS_ERROR_FATAL 2
+
+static int atp_status_check(struct urb *urb)
+{
+ struct atp *dev = urb->context;
+
+ switch (urb->status) {
+ case 0:
+ /* success */
+ break;
+ case -EOVERFLOW:
+ if (!dev->overflow_warned) {
+ printk(KERN_WARNING "appletouch: OVERFLOW with data "
+ "length %d, actual length is %d\n",
+ dev->info->datalen, dev->urb->actual_length);
+ dev->overflow_warned = true;
+ }
+ case -ECONNRESET:
+ case -ENOENT:
+ case -ESHUTDOWN:
+ /* This urb is terminated, clean up */
+ dbg("atp_complete: urb shutting down with status: %d",
+ urb->status);
+ return ATP_URB_STATUS_ERROR_FATAL;
+
+ default:
+ dbg("atp_complete: nonzero urb status received: %d",
+ urb->status);
+ return ATP_URB_STATUS_ERROR;
+ }
+
+ /* drop incomplete datasets */
+ if (dev->urb->actual_length != dev->info->datalen) {
+ dprintk("appletouch: incomplete data package"
+ " (first byte: %d, length: %d).\n",
+ dev->data[0], dev->urb->actual_length);
+ return ATP_URB_STATUS_ERROR;
+ }
+
+ return ATP_URB_STATUS_SUCCESS;
+}
+
+static void atp_detect_size(struct atp *dev)
+{
+ int i;
+
+ /* 17" Powerbooks have extra X sensors */
+ for (i = dev->info->xsensors; i < ATP_XSENSORS; i++) {
+ if (dev->xy_cur[i]) {
+
+ printk(KERN_INFO "appletouch: 17\" model detected.\n");
+
+ input_set_abs_params(dev->input, ABS_X, 0,
+ (dev->info->xsensors_17 - 1) *
+ dev->info->xfact - 1,
+ ATP_FUZZ, 0);
+ break;
+ }
+ }
+}
+
+/*
+ * USB interrupt callback functions
+ */
+
+/* Interrupt function for older touchpads: FOUNTAIN/GEYSER1/GEYSER2 */
+
+static void atp_complete_geyser_1_2(struct urb *urb)
+{
+ int x, y, x_z, y_z, x_f, y_f;
+ int retval, i, j;
+ int key;
+ struct atp *dev = urb->context;
+ int status = atp_status_check(urb);
+
+ if (status == ATP_URB_STATUS_ERROR_FATAL)
+ return;
+ else if (status == ATP_URB_STATUS_ERROR)
+ goto exit;
+
+ /* reorder the sensors values */
+ if (dev->info == &geyser2_info) {
+ memset(dev->xy_cur, 0, sizeof(dev->xy_cur));
+
+ /*
+ * The values are laid out like this:
+ * Y1, Y2, -, Y3, Y4, -, ..., X1, X2, -, X3, X4, -, ...
+ * '-' is an unused value.
+ */
+
+ /* read X values */
+ for (i = 0, j = 19; i < 20; i += 2, j += 3) {
+ dev->xy_cur[i] = dev->data[j];
+ dev->xy_cur[i + 1] = dev->data[j + 1];
+ }
+
+ /* read Y values */
+ for (i = 0, j = 1; i < 9; i += 2, j += 3) {
+ dev->xy_cur[ATP_XSENSORS + i] = dev->data[j];
+ dev->xy_cur[ATP_XSENSORS + i + 1] = dev->data[j + 1];
+ }
+ } else {
+ for (i = 0; i < 8; i++) {
+ /* X values */
+ dev->xy_cur[i + 0] = dev->data[5 * i + 2];
+ dev->xy_cur[i + 8] = dev->data[5 * i + 4];
+ dev->xy_cur[i + 16] = dev->data[5 * i + 42];
+ if (i < 2)
+ dev->xy_cur[i + 24] = dev->data[5 * i + 44];
+
+ /* Y values */
+ dev->xy_cur[ATP_XSENSORS + i] = dev->data[5 * i + 1];
+ dev->xy_cur[ATP_XSENSORS + i + 8] = dev->data[5 * i + 3];
+ }
+ }
+
+ dbg_dump("sample", dev->xy_cur);
+
+ if (!dev->valid) {
+ /* first sample */
+ dev->valid = true;
+ dev->x_old = dev->y_old = -1;
+
+ /* Store first sample */
+ memcpy(dev->xy_old, dev->xy_cur, sizeof(dev->xy_old));
+
+ /* Perform size detection, if not done already */
+ if (unlikely(!dev->size_detect_done)) {
+ atp_detect_size(dev);
+ dev->size_detect_done = 1;
+ goto exit;
+ }
+ }
+
+ for (i = 0; i < ATP_XSENSORS + ATP_YSENSORS; i++) {
+ /* accumulate the change */
+ signed char change = dev->xy_old[i] - dev->xy_cur[i];
+ dev->xy_acc[i] -= change;
+
+ /* prevent down drifting */
+ if (dev->xy_acc[i] < 0)
+ dev->xy_acc[i] = 0;
+ }
+
+ memcpy(dev->xy_old, dev->xy_cur, sizeof(dev->xy_old));
+
+ dbg_dump("accumulator", dev->xy_acc);
+
+ x = atp_calculate_abs(dev->xy_acc, ATP_XSENSORS,
+ dev->info->xfact, &x_z, &x_f);
+ y = atp_calculate_abs(dev->xy_acc + ATP_XSENSORS, ATP_YSENSORS,
+ dev->info->yfact, &y_z, &y_f);
+ key = dev->data[dev->info->datalen - 1] & ATP_STATUS_BUTTON;
+
+ if (x && y) {
+ if (dev->x_old != -1) {
+ x = (dev->x_old * 3 + x) >> 2;
+ y = (dev->y_old * 3 + y) >> 2;
+ dev->x_old = x;
+ dev->y_old = y;
+
+ if (debug > 1)
+ printk(KERN_DEBUG "appletouch: "
+ "X: %3d Y: %3d Xz: %3d Yz: %3d\n",
+ x, y, x_z, y_z);
+
+ input_report_key(dev->input, BTN_TOUCH, 1);
+ input_report_abs(dev->input, ABS_X, x);
+ input_report_abs(dev->input, ABS_Y, y);
+ input_report_abs(dev->input, ABS_PRESSURE,
+ min(ATP_PRESSURE, x_z + y_z));
+ atp_report_fingers(dev->input, max(x_f, y_f));
+ }
+ dev->x_old = x;
+ dev->y_old = y;
+
+ } else if (!x && !y) {
+
+ dev->x_old = dev->y_old = -1;
+ input_report_key(dev->input, BTN_TOUCH, 0);
+ input_report_abs(dev->input, ABS_PRESSURE, 0);
+ atp_report_fingers(dev->input, 0);
+
+ /* reset the accumulator on release */
+ memset(dev->xy_acc, 0, sizeof(dev->xy_acc));
+ }
+
+ input_report_key(dev->input, BTN_LEFT, key);
+ input_sync(dev->input);
+
+ exit:
+ retval = usb_submit_urb(dev->urb, GFP_ATOMIC);
+ if (retval)
+ err("atp_complete: usb_submit_urb failed with result %d",
+ retval);
+}
+
+/* Interrupt function for older touchpads: GEYSER3/GEYSER4 */
+
+static void atp_complete_geyser_3_4(struct urb *urb)
+{
+ int x, y, x_z, y_z, x_f, y_f;
+ int retval, i, j;
+ int key;
+ struct atp *dev = urb->context;
+ int status = atp_status_check(urb);
+
+ if (status == ATP_URB_STATUS_ERROR_FATAL)
+ return;
+ else if (status == ATP_URB_STATUS_ERROR)
+ goto exit;
+
+ /* Reorder the sensors values:
+ *
+ * The values are laid out like this:
+ * -, Y1, Y2, -, Y3, Y4, -, ..., -, X1, X2, -, X3, X4, ...
+ * '-' is an unused value.
+ */
+
+ /* read X values */
+ for (i = 0, j = 19; i < 20; i += 2, j += 3) {
+ dev->xy_cur[i] = dev->data[j + 1];
+ dev->xy_cur[i + 1] = dev->data[j + 2];
+ }
+ /* read Y values */
+ for (i = 0, j = 1; i < 9; i += 2, j += 3) {
+ dev->xy_cur[ATP_XSENSORS + i] = dev->data[j + 1];
+ dev->xy_cur[ATP_XSENSORS + i + 1] = dev->data[j + 2];
+ }
+
+ dbg_dump("sample", dev->xy_cur);
+
+ /* Just update the base values (i.e. touchpad in untouched state) */
+ if (dev->data[dev->info->datalen - 1] & ATP_STATUS_BASE_UPDATE) {
+
+ dprintk("appletouch: updated base values\n");
+
+ memcpy(dev->xy_old, dev->xy_cur, sizeof(dev->xy_old));
+ goto exit;
+ }
+
+ for (i = 0; i < ATP_XSENSORS + ATP_YSENSORS; i++) {
+ /* calculate the change */
+ dev->xy_acc[i] = dev->xy_cur[i] - dev->xy_old[i];
+
+ /* this is a round-robin value, so couple with that */
+ if (dev->xy_acc[i] > 127)
+ dev->xy_acc[i] -= 256;
+
+ if (dev->xy_acc[i] < -127)
+ dev->xy_acc[i] += 256;
+
+ /* prevent down drifting */
+ if (dev->xy_acc[i] < 0)
+ dev->xy_acc[i] = 0;
+ }
+
+ dbg_dump("accumulator", dev->xy_acc);
+
+ x = atp_calculate_abs(dev->xy_acc, ATP_XSENSORS,
+ dev->info->xfact, &x_z, &x_f);
+ y = atp_calculate_abs(dev->xy_acc + ATP_XSENSORS, ATP_YSENSORS,
+ dev->info->yfact, &y_z, &y_f);
+ key = dev->data[dev->info->datalen - 1] & ATP_STATUS_BUTTON;
+
+ if (x && y) {
+ if (dev->x_old != -1) {
+ x = (dev->x_old * 3 + x) >> 2;
+ y = (dev->y_old * 3 + y) >> 2;
+ dev->x_old = x;
+ dev->y_old = y;
+
+ if (debug > 1)
+ printk(KERN_DEBUG "appletouch: X: %3d Y: %3d "
+ "Xz: %3d Yz: %3d\n",
+ x, y, x_z, y_z);
+
+ input_report_key(dev->input, BTN_TOUCH, 1);
+ input_report_abs(dev->input, ABS_X, x);
+ input_report_abs(dev->input, ABS_Y, y);
+ input_report_abs(dev->input, ABS_PRESSURE,
+ min(ATP_PRESSURE, x_z + y_z));
+ atp_report_fingers(dev->input, max(x_f, y_f));
+ }
+ dev->x_old = x;
+ dev->y_old = y;
+
+ } else if (!x && !y) {
+
+ dev->x_old = dev->y_old = -1;
+ input_report_key(dev->input, BTN_TOUCH, 0);
+ input_report_abs(dev->input, ABS_PRESSURE, 0);
+ atp_report_fingers(dev->input, 0);
+
+ /* reset the accumulator on release */
+ memset(dev->xy_acc, 0, sizeof(dev->xy_acc));
+ }
+
+ input_report_key(dev->input, BTN_LEFT, key);
+ input_sync(dev->input);
+
+ /*
+ * Geysers 3/4 will continue to send packets continually after
+ * the first touch unless reinitialised. Do so if it's been
+ * idle for a while in order to avoid waking the kernel up
+ * several hundred times a second.
+ */
+
+ /*
+ * Button must not be pressed when entering suspend,
+ * otherwise we will never release the button.
+ */
+ if (!x && !y && !key) {
+ dev->idlecount++;
+ if (dev->idlecount == 10) {
+ dev->x_old = dev->y_old = -1;
+ dev->idlecount = 0;
+ schedule_work(&dev->work);
+ /* Don't resubmit urb here, wait for reinit */
+ return;
+ }
+ } else
+ dev->idlecount = 0;
+
+ exit:
+ retval = usb_submit_urb(dev->urb, GFP_ATOMIC);
+ if (retval)
+ err("atp_complete: usb_submit_urb failed with result %d",
+ retval);
+}
+
+static int atp_open(struct input_dev *input)
+{
+ struct atp *dev = input_get_drvdata(input);
+
+ if (usb_submit_urb(dev->urb, GFP_ATOMIC))
+ return -EIO;
+
+ dev->open = 1;
+ return 0;
+}
+
+static void atp_close(struct input_dev *input)
+{
+ struct atp *dev = input_get_drvdata(input);
+
+ usb_kill_urb(dev->urb);
+ cancel_work_sync(&dev->work);
+ dev->open = 0;
+}
+
+static int atp_handle_geyser(struct atp *dev)
+{
+ struct usb_device *udev = dev->udev;
+
+ if (dev->info != &fountain_info) {
+ /* switch to raw sensor mode */
+ if (atp_geyser_init(udev))
+ return -EIO;
+
+ printk(KERN_INFO "appletouch: Geyser mode initialized.\n");
+ }
+
+ return 0;
+}
+
+static int atp_probe(struct usb_interface *iface,
+ const struct usb_device_id *id)
+{
+ struct atp *dev;
+ struct input_dev *input_dev;
+ struct usb_device *udev = interface_to_usbdev(iface);
+ struct usb_host_interface *iface_desc;
+ struct usb_endpoint_descriptor *endpoint;
+ int int_in_endpointAddr = 0;
+ int i, error = -ENOMEM;
+ const struct atp_info *info = (const struct atp_info *)id->driver_info;
+
+ /* set up the endpoint information */
+ /* use only the first interrupt-in endpoint */
+ iface_desc = iface->cur_altsetting;
+ for (i = 0; i < iface_desc->desc.bNumEndpoints; i++) {
+ endpoint = &iface_desc->endpoint[i].desc;
+ if (!int_in_endpointAddr && usb_endpoint_is_int_in(endpoint)) {
+ /* we found an interrupt in endpoint */
+ int_in_endpointAddr = endpoint->bEndpointAddress;
+ break;
+ }
+ }
+ if (!int_in_endpointAddr) {
+ err("Could not find int-in endpoint");
+ return -EIO;
+ }
+
+ /* allocate memory for our device state and initialize it */
+ dev = kzalloc(sizeof(struct atp), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!dev || !input_dev) {
+ err("Out of memory");
+ goto err_free_devs;
+ }
+
+ dev->udev = udev;
+ dev->input = input_dev;
+ dev->info = info;
+ dev->overflow_warned = false;
+
+ dev->urb = usb_alloc_urb(0, GFP_KERNEL);
+ if (!dev->urb)
+ goto err_free_devs;
+
+ dev->data = usb_alloc_coherent(dev->udev, dev->info->datalen, GFP_KERNEL,
+ &dev->urb->transfer_dma);
+ if (!dev->data)
+ goto err_free_urb;
+
+ usb_fill_int_urb(dev->urb, udev,
+ usb_rcvintpipe(udev, int_in_endpointAddr),
+ dev->data, dev->info->datalen,
+ dev->info->callback, dev, 1);
+
+ error = atp_handle_geyser(dev);
+ if (error)
+ goto err_free_buffer;
+
+ usb_make_path(udev, dev->phys, sizeof(dev->phys));
+ strlcat(dev->phys, "/input0", sizeof(dev->phys));
+
+ input_dev->name = "appletouch";
+ input_dev->phys = dev->phys;
+ usb_to_input_id(dev->udev, &input_dev->id);
+ input_dev->dev.parent = &iface->dev;
+
+ input_set_drvdata(input_dev, dev);
+
+ input_dev->open = atp_open;
+ input_dev->close = atp_close;
+
+ set_bit(EV_ABS, input_dev->evbit);
+
+ input_set_abs_params(input_dev, ABS_X, 0,
+ (dev->info->xsensors - 1) * dev->info->xfact - 1,
+ ATP_FUZZ, 0);
+ input_set_abs_params(input_dev, ABS_Y, 0,
+ (dev->info->ysensors - 1) * dev->info->yfact - 1,
+ ATP_FUZZ, 0);
+ input_set_abs_params(input_dev, ABS_PRESSURE, 0, ATP_PRESSURE, 0, 0);
+
+ set_bit(EV_KEY, input_dev->evbit);
+ set_bit(BTN_TOUCH, input_dev->keybit);
+ set_bit(BTN_TOOL_FINGER, input_dev->keybit);
+ set_bit(BTN_TOOL_DOUBLETAP, input_dev->keybit);
+ set_bit(BTN_TOOL_TRIPLETAP, input_dev->keybit);
+ set_bit(BTN_LEFT, input_dev->keybit);
+
+ error = input_register_device(dev->input);
+ if (error)
+ goto err_free_buffer;
+
+ /* save our data pointer in this interface device */
+ usb_set_intfdata(iface, dev);
+
+ INIT_WORK(&dev->work, atp_reinit);
+
+ return 0;
+
+ err_free_buffer:
+ usb_free_coherent(dev->udev, dev->info->datalen,
+ dev->data, dev->urb->transfer_dma);
+ err_free_urb:
+ usb_free_urb(dev->urb);
+ err_free_devs:
+ usb_set_intfdata(iface, NULL);
+ kfree(dev);
+ input_free_device(input_dev);
+ return error;
+}
+
+static void atp_disconnect(struct usb_interface *iface)
+{
+ struct atp *dev = usb_get_intfdata(iface);
+
+ usb_set_intfdata(iface, NULL);
+ if (dev) {
+ usb_kill_urb(dev->urb);
+ input_unregister_device(dev->input);
+ usb_free_coherent(dev->udev, dev->info->datalen,
+ dev->data, dev->urb->transfer_dma);
+ usb_free_urb(dev->urb);
+ kfree(dev);
+ }
+ printk(KERN_INFO "input: appletouch disconnected\n");
+}
+
+static int atp_recover(struct atp *dev)
+{
+ int error;
+
+ error = atp_handle_geyser(dev);
+ if (error)
+ return error;
+
+ if (dev->open && usb_submit_urb(dev->urb, GFP_ATOMIC))
+ return -EIO;
+
+ return 0;
+}
+
+static int atp_suspend(struct usb_interface *iface, pm_message_t message)
+{
+ struct atp *dev = usb_get_intfdata(iface);
+
+ usb_kill_urb(dev->urb);
+ return 0;
+}
+
+static int atp_resume(struct usb_interface *iface)
+{
+ struct atp *dev = usb_get_intfdata(iface);
+
+ if (dev->open && usb_submit_urb(dev->urb, GFP_ATOMIC))
+ return -EIO;
+
+ return 0;
+}
+
+static int atp_reset_resume(struct usb_interface *iface)
+{
+ struct atp *dev = usb_get_intfdata(iface);
+
+ return atp_recover(dev);
+}
+
+static struct usb_driver atp_driver = {
+ .name = "appletouch",
+ .probe = atp_probe,
+ .disconnect = atp_disconnect,
+ .suspend = atp_suspend,
+ .resume = atp_resume,
+ .reset_resume = atp_reset_resume,
+ .id_table = atp_table,
+};
+
+static int __init atp_init(void)
+{
+ return usb_register(&atp_driver);
+}
+
+static void __exit atp_exit(void)
+{
+ usb_deregister(&atp_driver);
+}
+
+module_init(atp_init);
+module_exit(atp_exit);
diff --git a/drivers/input/mouse/atarimouse.c b/drivers/input/mouse/atarimouse.c
new file mode 100644
index 0000000..5c4a692
--- /dev/null
+++ b/drivers/input/mouse/atarimouse.c
@@ -0,0 +1,159 @@
+/*
+ * Atari mouse driver for Linux/m68k
+ *
+ * Copyright (c) 2005 Michael Schmitz
+ *
+ * Based on:
+ * Amiga mouse driver for Linux/m68k
+ *
+ * Copyright (c) 2000-2002 Vojtech Pavlik
+ *
+ */
+/*
+ * The low level init and interrupt stuff is handled in arch/mm68k/atari/atakeyb.c
+ * (the keyboard ACIA also handles the mouse and joystick data, and the keyboard
+ * interrupt is shared with the MIDI ACIA so MIDI data also get handled there).
+ * This driver only deals with handing key events off to the input layer.
+ *
+ * Largely based on the old:
+ *
+ * Atari Mouse Driver for Linux
+ * by Robert de Vries (robert@and.nl) 19Jul93
+ *
+ * 16 Nov 1994 Andreas Schwab
+ * Compatibility with busmouse
+ * Support for three button mouse (shamelessly stolen from MiNT)
+ * third button wired to one of the joystick directions on joystick 1
+ *
+ * 1996/02/11 Andreas Schwab
+ * Module support
+ * Allow multiple open's
+ *
+ * Converted to use new generic busmouse code. 5 Apr 1998
+ * Russell King <rmk@arm.uk.linux.org>
+ */
+
+
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/input.h>
+#include <linux/interrupt.h>
+
+#include <asm/irq.h>
+#include <asm/setup.h>
+#include <asm/system.h>
+#include <asm/uaccess.h>
+#include <asm/atarihw.h>
+#include <asm/atarikb.h>
+#include <asm/atariints.h>
+
+MODULE_AUTHOR("Michael Schmitz <schmitz@biophys.uni-duesseldorf.de>");
+MODULE_DESCRIPTION("Atari mouse driver");
+MODULE_LICENSE("GPL");
+
+static int mouse_threshold[2] = {2, 2};
+module_param_array(mouse_threshold, int, NULL, 0);
+
+#ifdef FIXED_ATARI_JOYSTICK
+extern int atari_mouse_buttons;
+#endif
+
+static struct input_dev *atamouse_dev;
+
+static void atamouse_interrupt(char *buf)
+{
+ int buttons, dx, dy;
+
+ buttons = (buf[0] & 1) | ((buf[0] & 2) << 1);
+#ifdef FIXED_ATARI_JOYSTICK
+ buttons |= atari_mouse_buttons & 2;
+ atari_mouse_buttons = buttons;
+#endif
+
+ /* only relative events get here */
+ dx = buf[1];
+ dy = buf[2];
+
+ input_report_rel(atamouse_dev, REL_X, dx);
+ input_report_rel(atamouse_dev, REL_Y, dy);
+
+ input_report_key(atamouse_dev, BTN_LEFT, buttons & 0x4);
+ input_report_key(atamouse_dev, BTN_MIDDLE, buttons & 0x2);
+ input_report_key(atamouse_dev, BTN_RIGHT, buttons & 0x1);
+
+ input_sync(atamouse_dev);
+
+ return;
+}
+
+static int atamouse_open(struct input_dev *dev)
+{
+#ifdef FIXED_ATARI_JOYSTICK
+ atari_mouse_buttons = 0;
+#endif
+ ikbd_mouse_y0_top();
+ ikbd_mouse_thresh(mouse_threshold[0], mouse_threshold[1]);
+ ikbd_mouse_rel_pos();
+ atari_input_mouse_interrupt_hook = atamouse_interrupt;
+
+ return 0;
+}
+
+static void atamouse_close(struct input_dev *dev)
+{
+ ikbd_mouse_disable();
+ atari_input_mouse_interrupt_hook = NULL;
+}
+
+static int __init atamouse_init(void)
+{
+ int error;
+
+ if (!MACH_IS_ATARI || !ATARIHW_PRESENT(ST_MFP))
+ return -ENODEV;
+
+ error = atari_keyb_init();
+ if (error)
+ return error;
+
+ atamouse_dev = input_allocate_device();
+ if (!atamouse_dev)
+ return -ENOMEM;
+
+ atamouse_dev->name = "Atari mouse";
+ atamouse_dev->phys = "atamouse/input0";
+ atamouse_dev->id.bustype = BUS_HOST;
+ atamouse_dev->id.vendor = 0x0001;
+ atamouse_dev->id.product = 0x0002;
+ atamouse_dev->id.version = 0x0100;
+
+ atamouse_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL);
+ atamouse_dev->relbit[0] = BIT_MASK(REL_X) | BIT_MASK(REL_Y);
+ atamouse_dev->keybit[BIT_WORD(BTN_LEFT)] = BIT_MASK(BTN_LEFT) |
+ BIT_MASK(BTN_MIDDLE) | BIT_MASK(BTN_RIGHT);
+
+ atamouse_dev->open = atamouse_open;
+ atamouse_dev->close = atamouse_close;
+
+ error = input_register_device(atamouse_dev);
+ if (error) {
+ input_free_device(atamouse_dev);
+ return error;
+ }
+
+ return 0;
+}
+
+static void __exit atamouse_exit(void)
+{
+ input_unregister_device(atamouse_dev);
+}
+
+module_init(atamouse_init);
+module_exit(atamouse_exit);
diff --git a/drivers/input/mouse/bcm5974.c b/drivers/input/mouse/bcm5974.c
new file mode 100644
index 0000000..ec58f48
--- /dev/null
+++ b/drivers/input/mouse/bcm5974.c
@@ -0,0 +1,975 @@
+/*
+ * Apple USB BCM5974 (Macbook Air and Penryn Macbook Pro) multitouch driver
+ *
+ * Copyright (C) 2008 Henrik Rydberg (rydberg@euromail.se)
+ *
+ * The USB initialization and package decoding was made by
+ * Scott Shawcroft as part of the touchd user-space driver project:
+ * Copyright (C) 2008 Scott Shawcroft (scott.shawcroft@gmail.com)
+ *
+ * The BCM5974 driver is based on the appletouch driver:
+ * Copyright (C) 2001-2004 Greg Kroah-Hartman (greg@kroah.com)
+ * Copyright (C) 2005 Johannes Berg (johannes@sipsolutions.net)
+ * Copyright (C) 2005 Stelian Pop (stelian@popies.net)
+ * Copyright (C) 2005 Frank Arnold (frank@scirocco-5v-turbo.de)
+ * Copyright (C) 2005 Peter Osterlund (petero2@telia.com)
+ * Copyright (C) 2005 Michael Hanselmann (linux-kernel@hansmi.ch)
+ * Copyright (C) 2006 Nicolas Boichat (nicolas@boichat.ch)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/usb/input.h>
+#include <linux/hid.h>
+#include <linux/mutex.h>
+
+#define USB_VENDOR_ID_APPLE 0x05ac
+
+/* MacbookAir, aka wellspring */
+#define USB_DEVICE_ID_APPLE_WELLSPRING_ANSI 0x0223
+#define USB_DEVICE_ID_APPLE_WELLSPRING_ISO 0x0224
+#define USB_DEVICE_ID_APPLE_WELLSPRING_JIS 0x0225
+/* MacbookProPenryn, aka wellspring2 */
+#define USB_DEVICE_ID_APPLE_WELLSPRING2_ANSI 0x0230
+#define USB_DEVICE_ID_APPLE_WELLSPRING2_ISO 0x0231
+#define USB_DEVICE_ID_APPLE_WELLSPRING2_JIS 0x0232
+/* Macbook5,1 (unibody), aka wellspring3 */
+#define USB_DEVICE_ID_APPLE_WELLSPRING3_ANSI 0x0236
+#define USB_DEVICE_ID_APPLE_WELLSPRING3_ISO 0x0237
+#define USB_DEVICE_ID_APPLE_WELLSPRING3_JIS 0x0238
+/* MacbookAir3,2 (unibody), aka wellspring5 */
+#define USB_DEVICE_ID_APPLE_WELLSPRING4_ANSI 0x023f
+#define USB_DEVICE_ID_APPLE_WELLSPRING4_ISO 0x0240
+#define USB_DEVICE_ID_APPLE_WELLSPRING4_JIS 0x0241
+/* MacbookAir3,1 (unibody), aka wellspring4 */
+#define USB_DEVICE_ID_APPLE_WELLSPRING4A_ANSI 0x0242
+#define USB_DEVICE_ID_APPLE_WELLSPRING4A_ISO 0x0243
+#define USB_DEVICE_ID_APPLE_WELLSPRING4A_JIS 0x0244
+/* Macbook8 (unibody, March 2011) */
+#define USB_DEVICE_ID_APPLE_WELLSPRING5_ANSI 0x0245
+#define USB_DEVICE_ID_APPLE_WELLSPRING5_ISO 0x0246
+#define USB_DEVICE_ID_APPLE_WELLSPRING5_JIS 0x0247
+/* MacbookAir4,1 (unibody, July 2011) */
+#define USB_DEVICE_ID_APPLE_WELLSPRING6A_ANSI 0x0249
+#define USB_DEVICE_ID_APPLE_WELLSPRING6A_ISO 0x024a
+#define USB_DEVICE_ID_APPLE_WELLSPRING6A_JIS 0x024b
+/* MacbookAir4,2 (unibody, July 2011) */
+#define USB_DEVICE_ID_APPLE_WELLSPRING6_ANSI 0x024c
+#define USB_DEVICE_ID_APPLE_WELLSPRING6_ISO 0x024d
+#define USB_DEVICE_ID_APPLE_WELLSPRING6_JIS 0x024e
+/* Macbook8,2 (unibody) */
+#define USB_DEVICE_ID_APPLE_WELLSPRING5A_ANSI 0x0252
+#define USB_DEVICE_ID_APPLE_WELLSPRING5A_ISO 0x0253
+#define USB_DEVICE_ID_APPLE_WELLSPRING5A_JIS 0x0254
+/* MacbookPro10,1 (unibody, June 2012) */
+#define USB_DEVICE_ID_APPLE_WELLSPRING7_ANSI 0x0262
+#define USB_DEVICE_ID_APPLE_WELLSPRING7_ISO 0x0263
+#define USB_DEVICE_ID_APPLE_WELLSPRING7_JIS 0x0264
+
+#define BCM5974_DEVICE(prod) { \
+ .match_flags = (USB_DEVICE_ID_MATCH_DEVICE | \
+ USB_DEVICE_ID_MATCH_INT_CLASS | \
+ USB_DEVICE_ID_MATCH_INT_PROTOCOL), \
+ .idVendor = USB_VENDOR_ID_APPLE, \
+ .idProduct = (prod), \
+ .bInterfaceClass = USB_INTERFACE_CLASS_HID, \
+ .bInterfaceProtocol = USB_INTERFACE_PROTOCOL_MOUSE \
+}
+
+/* table of devices that work with this driver */
+static const struct usb_device_id bcm5974_table[] = {
+ /* MacbookAir1.1 */
+ BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING_ANSI),
+ BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING_ISO),
+ BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING_JIS),
+ /* MacbookProPenryn */
+ BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING2_ANSI),
+ BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING2_ISO),
+ BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING2_JIS),
+ /* Macbook5,1 */
+ BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING3_ANSI),
+ BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING3_ISO),
+ BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING3_JIS),
+ /* MacbookAir3,2 */
+ BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING4_ANSI),
+ BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING4_ISO),
+ BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING4_JIS),
+ /* MacbookAir3,1 */
+ BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING4A_ANSI),
+ BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING4A_ISO),
+ BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING4A_JIS),
+ /* MacbookPro8 */
+ BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING5_ANSI),
+ BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING5_ISO),
+ BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING5_JIS),
+ /* MacbookAir4,1 */
+ BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING6A_ANSI),
+ BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING6A_ISO),
+ BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING6A_JIS),
+ /* MacbookAir4,2 */
+ BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING6_ANSI),
+ BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING6_ISO),
+ BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING6_JIS),
+ /* MacbookPro8,2 */
+ BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING5A_ANSI),
+ BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING5A_ISO),
+ BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING5A_JIS),
+ /* MacbookPro10,1 */
+ BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING7_ANSI),
+ BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING7_ISO),
+ BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING7_JIS),
+ /* Terminating entry */
+ {}
+};
+MODULE_DEVICE_TABLE(usb, bcm5974_table);
+
+MODULE_AUTHOR("Henrik Rydberg");
+MODULE_DESCRIPTION("Apple USB BCM5974 multitouch driver");
+MODULE_LICENSE("GPL");
+
+#define dprintk(level, format, a...)\
+ { if (debug >= level) printk(KERN_DEBUG format, ##a); }
+
+static int debug = 1;
+module_param(debug, int, 0644);
+MODULE_PARM_DESC(debug, "Activate debugging output");
+
+/* button data structure */
+struct bt_data {
+ u8 unknown1; /* constant */
+ u8 button; /* left button */
+ u8 rel_x; /* relative x coordinate */
+ u8 rel_y; /* relative y coordinate */
+};
+
+/* trackpad header types */
+enum tp_type {
+ TYPE1, /* plain trackpad */
+ TYPE2 /* button integrated in trackpad */
+};
+
+/* trackpad finger data offsets, le16-aligned */
+#define FINGER_TYPE1 (13 * sizeof(__le16))
+#define FINGER_TYPE2 (15 * sizeof(__le16))
+
+/* trackpad button data offsets */
+#define BUTTON_TYPE2 15
+
+/* list of device capability bits */
+#define HAS_INTEGRATED_BUTTON 1
+
+/* trackpad finger structure, le16-aligned */
+struct tp_finger {
+ __le16 origin; /* zero when switching track finger */
+ __le16 abs_x; /* absolute x coodinate */
+ __le16 abs_y; /* absolute y coodinate */
+ __le16 rel_x; /* relative x coodinate */
+ __le16 rel_y; /* relative y coodinate */
+ __le16 size_major; /* finger size, major axis? */
+ __le16 size_minor; /* finger size, minor axis? */
+ __le16 orientation; /* 16384 when point, else 15 bit angle */
+ __le16 force_major; /* trackpad force, major axis? */
+ __le16 force_minor; /* trackpad force, minor axis? */
+ __le16 unused[3]; /* zeros */
+ __le16 multi; /* one finger: varies, more fingers: constant */
+} __attribute__((packed,aligned(2)));
+
+/* trackpad finger data size, empirically at least ten fingers */
+#define SIZEOF_FINGER sizeof(struct tp_finger)
+#define SIZEOF_ALL_FINGERS (16 * SIZEOF_FINGER)
+#define MAX_FINGER_ORIENTATION 16384
+
+/* device-specific parameters */
+struct bcm5974_param {
+ int dim; /* logical dimension */
+ int fuzz; /* logical noise value */
+ int devmin; /* device minimum reading */
+ int devmax; /* device maximum reading */
+};
+
+/* device-specific configuration */
+struct bcm5974_config {
+ int ansi, iso, jis; /* the product id of this device */
+ int caps; /* device capability bitmask */
+ int bt_ep; /* the endpoint of the button interface */
+ int bt_datalen; /* data length of the button interface */
+ int tp_ep; /* the endpoint of the trackpad interface */
+ enum tp_type tp_type; /* type of trackpad interface */
+ int tp_offset; /* offset to trackpad finger data */
+ int tp_datalen; /* data length of the trackpad interface */
+ struct bcm5974_param p; /* finger pressure limits */
+ struct bcm5974_param w; /* finger width limits */
+ struct bcm5974_param x; /* horizontal limits */
+ struct bcm5974_param y; /* vertical limits */
+};
+
+/* logical device structure */
+struct bcm5974 {
+ char phys[64];
+ struct usb_device *udev; /* usb device */
+ struct usb_interface *intf; /* our interface */
+ struct input_dev *input; /* input dev */
+ struct bcm5974_config cfg; /* device configuration */
+ struct mutex pm_mutex; /* serialize access to open/suspend */
+ int opened; /* 1: opened, 0: closed */
+ struct urb *bt_urb; /* button usb request block */
+ struct bt_data *bt_data; /* button transferred data */
+ struct urb *tp_urb; /* trackpad usb request block */
+ u8 *tp_data; /* trackpad transferred data */
+ int fingers; /* number of fingers on trackpad */
+};
+
+/* logical dimensions */
+#define DIM_PRESSURE 256 /* maximum finger pressure */
+#define DIM_WIDTH 16 /* maximum finger width */
+#define DIM_X 1280 /* maximum trackpad x value */
+#define DIM_Y 800 /* maximum trackpad y value */
+
+/* logical signal quality */
+#define SN_PRESSURE 45 /* pressure signal-to-noise ratio */
+#define SN_WIDTH 100 /* width signal-to-noise ratio */
+#define SN_COORD 250 /* coordinate signal-to-noise ratio */
+
+/* pressure thresholds */
+#define PRESSURE_LOW (2 * DIM_PRESSURE / SN_PRESSURE)
+#define PRESSURE_HIGH (3 * PRESSURE_LOW)
+
+/* device constants */
+static const struct bcm5974_config bcm5974_config_table[] = {
+ {
+ USB_DEVICE_ID_APPLE_WELLSPRING_ANSI,
+ USB_DEVICE_ID_APPLE_WELLSPRING_ISO,
+ USB_DEVICE_ID_APPLE_WELLSPRING_JIS,
+ 0,
+ 0x84, sizeof(struct bt_data),
+ 0x81, TYPE1, FINGER_TYPE1, FINGER_TYPE1 + SIZEOF_ALL_FINGERS,
+ { DIM_PRESSURE, DIM_PRESSURE / SN_PRESSURE, 0, 256 },
+ { DIM_WIDTH, DIM_WIDTH / SN_WIDTH, 0, 2048 },
+ { DIM_X, DIM_X / SN_COORD, -4824, 5342 },
+ { DIM_Y, DIM_Y / SN_COORD, -172, 5820 }
+ },
+ {
+ USB_DEVICE_ID_APPLE_WELLSPRING2_ANSI,
+ USB_DEVICE_ID_APPLE_WELLSPRING2_ISO,
+ USB_DEVICE_ID_APPLE_WELLSPRING2_JIS,
+ 0,
+ 0x84, sizeof(struct bt_data),
+ 0x81, TYPE1, FINGER_TYPE1, FINGER_TYPE1 + SIZEOF_ALL_FINGERS,
+ { DIM_PRESSURE, DIM_PRESSURE / SN_PRESSURE, 0, 256 },
+ { DIM_WIDTH, DIM_WIDTH / SN_WIDTH, 0, 2048 },
+ { DIM_X, DIM_X / SN_COORD, -4824, 4824 },
+ { DIM_Y, DIM_Y / SN_COORD, -172, 4290 }
+ },
+ {
+ USB_DEVICE_ID_APPLE_WELLSPRING3_ANSI,
+ USB_DEVICE_ID_APPLE_WELLSPRING3_ISO,
+ USB_DEVICE_ID_APPLE_WELLSPRING3_JIS,
+ HAS_INTEGRATED_BUTTON,
+ 0x84, sizeof(struct bt_data),
+ 0x81, TYPE2, FINGER_TYPE2, FINGER_TYPE2 + SIZEOF_ALL_FINGERS,
+ { DIM_PRESSURE, DIM_PRESSURE / SN_PRESSURE, 0, 300 },
+ { DIM_WIDTH, DIM_WIDTH / SN_WIDTH, 0, 2048 },
+ { DIM_X, DIM_X / SN_COORD, -4460, 5166 },
+ { DIM_Y, DIM_Y / SN_COORD, -75, 6700 }
+ },
+ {
+ USB_DEVICE_ID_APPLE_WELLSPRING4_ANSI,
+ USB_DEVICE_ID_APPLE_WELLSPRING4_ISO,
+ USB_DEVICE_ID_APPLE_WELLSPRING4_JIS,
+ HAS_INTEGRATED_BUTTON,
+ 0x84, sizeof(struct bt_data),
+ 0x81, TYPE2, FINGER_TYPE2, FINGER_TYPE2 + SIZEOF_ALL_FINGERS,
+ { DIM_PRESSURE, DIM_PRESSURE / SN_PRESSURE, 0, 300 },
+ { DIM_WIDTH, DIM_WIDTH / SN_WIDTH, 0, 2048 },
+ { DIM_X, DIM_X / SN_COORD, -4620, 5140 },
+ { DIM_Y, DIM_Y / SN_COORD, -150, 6600 }
+ },
+ {
+ USB_DEVICE_ID_APPLE_WELLSPRING4A_ANSI,
+ USB_DEVICE_ID_APPLE_WELLSPRING4A_ISO,
+ USB_DEVICE_ID_APPLE_WELLSPRING4A_JIS,
+ HAS_INTEGRATED_BUTTON,
+ 0x84, sizeof(struct bt_data),
+ 0x81, TYPE2, FINGER_TYPE2, FINGER_TYPE2 + SIZEOF_ALL_FINGERS,
+ { DIM_PRESSURE, DIM_PRESSURE / SN_PRESSURE, 0, 300 },
+ { DIM_WIDTH, DIM_WIDTH / SN_WIDTH, 0, 2048 },
+ { DIM_X, DIM_X / SN_COORD, -4616, 5112 },
+ { DIM_Y, DIM_Y / SN_COORD, -142, 5234 }
+ },
+ {
+ USB_DEVICE_ID_APPLE_WELLSPRING5_ANSI,
+ USB_DEVICE_ID_APPLE_WELLSPRING5_ISO,
+ USB_DEVICE_ID_APPLE_WELLSPRING5_JIS,
+ HAS_INTEGRATED_BUTTON,
+ 0x84, sizeof(struct bt_data),
+ 0x81, TYPE2, FINGER_TYPE2, FINGER_TYPE2 + SIZEOF_ALL_FINGERS,
+ { DIM_PRESSURE, DIM_PRESSURE / SN_PRESSURE, 0, 300 },
+ { DIM_WIDTH, DIM_WIDTH / SN_WIDTH, 0, 2048 },
+ { DIM_X, DIM_X / SN_COORD, -4415, 5050 },
+ { DIM_Y, DIM_Y / SN_COORD, -55, 6680 }
+ },
+ {
+ USB_DEVICE_ID_APPLE_WELLSPRING6_ANSI,
+ USB_DEVICE_ID_APPLE_WELLSPRING6_ISO,
+ USB_DEVICE_ID_APPLE_WELLSPRING6_JIS,
+ HAS_INTEGRATED_BUTTON,
+ 0x84, sizeof(struct bt_data),
+ 0x81, TYPE2, FINGER_TYPE2, FINGER_TYPE2 + SIZEOF_ALL_FINGERS,
+ { DIM_PRESSURE, DIM_PRESSURE / SN_PRESSURE, 0, 300 },
+ { DIM_WIDTH, DIM_WIDTH / SN_WIDTH, 0, 2048 },
+ { DIM_X, DIM_X / SN_COORD, -4620, 5140 },
+ { DIM_Y, DIM_Y / SN_COORD, -150, 6600 }
+ },
+ {
+ USB_DEVICE_ID_APPLE_WELLSPRING5A_ANSI,
+ USB_DEVICE_ID_APPLE_WELLSPRING5A_ISO,
+ USB_DEVICE_ID_APPLE_WELLSPRING5A_JIS,
+ HAS_INTEGRATED_BUTTON,
+ 0x84, sizeof(struct bt_data),
+ 0x81, TYPE2, FINGER_TYPE2, FINGER_TYPE2 + SIZEOF_ALL_FINGERS,
+ { DIM_PRESSURE, DIM_PRESSURE / SN_PRESSURE, 0, 300 },
+ { DIM_WIDTH, DIM_WIDTH / SN_WIDTH, 0, 2048 },
+ { DIM_X, DIM_X / SN_COORD, -4750, 5280 },
+ { DIM_Y, DIM_Y / SN_COORD, -150, 6730 }
+ },
+ {
+ USB_DEVICE_ID_APPLE_WELLSPRING6A_ANSI,
+ USB_DEVICE_ID_APPLE_WELLSPRING6A_ISO,
+ USB_DEVICE_ID_APPLE_WELLSPRING6A_JIS,
+ HAS_INTEGRATED_BUTTON,
+ 0x84, sizeof(struct bt_data),
+ 0x81, TYPE2, FINGER_TYPE2, FINGER_TYPE2 + SIZEOF_ALL_FINGERS,
+ { DIM_PRESSURE, DIM_PRESSURE / SN_PRESSURE, 0, 300 },
+ { DIM_WIDTH, DIM_WIDTH / SN_WIDTH, 0, 2048 },
+ { DIM_X, DIM_X / SN_COORD, -4620, 5140 },
+ { DIM_Y, DIM_Y / SN_COORD, -150, 6600 }
+ },
+ {
+ USB_DEVICE_ID_APPLE_WELLSPRING7_ANSI,
+ USB_DEVICE_ID_APPLE_WELLSPRING7_ISO,
+ USB_DEVICE_ID_APPLE_WELLSPRING7_JIS,
+ HAS_INTEGRATED_BUTTON,
+ 0x84, sizeof(struct bt_data),
+ 0x81, TYPE2, FINGER_TYPE2, FINGER_TYPE2 + SIZEOF_ALL_FINGERS,
+ { DIM_PRESSURE, DIM_PRESSURE / SN_PRESSURE, 0, 300 },
+ { DIM_WIDTH, DIM_WIDTH / SN_WIDTH, 0, 2048 },
+ { DIM_X, DIM_X / SN_COORD, -4750, 5280 },
+ { DIM_Y, DIM_Y / SN_COORD, -150, 6730 }
+ },
+ {}
+};
+
+/* return the device-specific configuration by device */
+static const struct bcm5974_config *bcm5974_get_config(struct usb_device *udev)
+{
+ u16 id = le16_to_cpu(udev->descriptor.idProduct);
+ const struct bcm5974_config *cfg;
+
+ for (cfg = bcm5974_config_table; cfg->ansi; ++cfg)
+ if (cfg->ansi == id || cfg->iso == id || cfg->jis == id)
+ return cfg;
+
+ return bcm5974_config_table;
+}
+
+/* convert 16-bit little endian to signed integer */
+static inline int raw2int(__le16 x)
+{
+ return (signed short)le16_to_cpu(x);
+}
+
+/* scale device data to logical dimensions (asserts devmin < devmax) */
+static inline int int2scale(const struct bcm5974_param *p, int x)
+{
+ return x * p->dim / (p->devmax - p->devmin);
+}
+
+/* all logical value ranges are [0,dim). */
+static inline int int2bound(const struct bcm5974_param *p, int x)
+{
+ int s = int2scale(p, x);
+
+ return clamp_val(s, 0, p->dim - 1);
+}
+
+/* setup which logical events to report */
+static void setup_events_to_report(struct input_dev *input_dev,
+ const struct bcm5974_config *cfg)
+{
+ __set_bit(EV_ABS, input_dev->evbit);
+
+ input_set_abs_params(input_dev, ABS_PRESSURE,
+ 0, cfg->p.dim, cfg->p.fuzz, 0);
+ input_set_abs_params(input_dev, ABS_TOOL_WIDTH,
+ 0, cfg->w.dim, cfg->w.fuzz, 0);
+ input_set_abs_params(input_dev, ABS_X,
+ 0, cfg->x.dim, cfg->x.fuzz, 0);
+ input_set_abs_params(input_dev, ABS_Y,
+ 0, cfg->y.dim, cfg->y.fuzz, 0);
+
+ /* finger touch area */
+ input_set_abs_params(input_dev, ABS_MT_TOUCH_MAJOR,
+ cfg->w.devmin, cfg->w.devmax, 0, 0);
+ input_set_abs_params(input_dev, ABS_MT_TOUCH_MINOR,
+ cfg->w.devmin, cfg->w.devmax, 0, 0);
+ /* finger approach area */
+ input_set_abs_params(input_dev, ABS_MT_WIDTH_MAJOR,
+ cfg->w.devmin, cfg->w.devmax, 0, 0);
+ input_set_abs_params(input_dev, ABS_MT_WIDTH_MINOR,
+ cfg->w.devmin, cfg->w.devmax, 0, 0);
+ /* finger orientation */
+ input_set_abs_params(input_dev, ABS_MT_ORIENTATION,
+ -MAX_FINGER_ORIENTATION,
+ MAX_FINGER_ORIENTATION, 0, 0);
+ /* finger position */
+ input_set_abs_params(input_dev, ABS_MT_POSITION_X,
+ cfg->x.devmin, cfg->x.devmax, 0, 0);
+ input_set_abs_params(input_dev, ABS_MT_POSITION_Y,
+ cfg->y.devmin, cfg->y.devmax, 0, 0);
+
+ __set_bit(EV_KEY, input_dev->evbit);
+ __set_bit(BTN_TOUCH, input_dev->keybit);
+ __set_bit(BTN_TOOL_FINGER, input_dev->keybit);
+ __set_bit(BTN_TOOL_DOUBLETAP, input_dev->keybit);
+ __set_bit(BTN_TOOL_TRIPLETAP, input_dev->keybit);
+ __set_bit(BTN_TOOL_QUADTAP, input_dev->keybit);
+ __set_bit(BTN_LEFT, input_dev->keybit);
+
+ input_set_events_per_packet(input_dev, 60);
+}
+
+/* report button data as logical button state */
+static int report_bt_state(struct bcm5974 *dev, int size)
+{
+ if (size != sizeof(struct bt_data))
+ return -EIO;
+
+ dprintk(7,
+ "bcm5974: button data: %x %x %x %x\n",
+ dev->bt_data->unknown1, dev->bt_data->button,
+ dev->bt_data->rel_x, dev->bt_data->rel_y);
+
+ input_report_key(dev->input, BTN_LEFT, dev->bt_data->button);
+ input_sync(dev->input);
+
+ return 0;
+}
+
+static void report_finger_data(struct input_dev *input,
+ const struct bcm5974_config *cfg,
+ const struct tp_finger *f)
+{
+ input_report_abs(input, ABS_MT_TOUCH_MAJOR,
+ raw2int(f->force_major) << 1);
+ input_report_abs(input, ABS_MT_TOUCH_MINOR,
+ raw2int(f->force_minor) << 1);
+ input_report_abs(input, ABS_MT_WIDTH_MAJOR,
+ raw2int(f->size_major) << 1);
+ input_report_abs(input, ABS_MT_WIDTH_MINOR,
+ raw2int(f->size_minor) << 1);
+ input_report_abs(input, ABS_MT_ORIENTATION,
+ MAX_FINGER_ORIENTATION - raw2int(f->orientation));
+ input_report_abs(input, ABS_MT_POSITION_X, raw2int(f->abs_x));
+ input_report_abs(input, ABS_MT_POSITION_Y,
+ cfg->y.devmin + cfg->y.devmax - raw2int(f->abs_y));
+ input_mt_sync(input);
+}
+
+/* report trackpad data as logical trackpad state */
+static int report_tp_state(struct bcm5974 *dev, int size)
+{
+ const struct bcm5974_config *c = &dev->cfg;
+ const struct tp_finger *f;
+ struct input_dev *input = dev->input;
+ int raw_p, raw_w, raw_x, raw_y, raw_n, i;
+ int ptest, origin, ibt = 0, nmin = 0, nmax = 0;
+ int abs_p = 0, abs_w = 0, abs_x = 0, abs_y = 0;
+
+ if (size < c->tp_offset || (size - c->tp_offset) % SIZEOF_FINGER != 0)
+ return -EIO;
+
+ /* finger data, le16-aligned */
+ f = (const struct tp_finger *)(dev->tp_data + c->tp_offset);
+ raw_n = (size - c->tp_offset) / SIZEOF_FINGER;
+
+ /* always track the first finger; when detached, start over */
+ if (raw_n) {
+
+ /* report raw trackpad data */
+ for (i = 0; i < raw_n; i++)
+ report_finger_data(input, c, &f[i]);
+
+ raw_p = raw2int(f->force_major);
+ raw_w = raw2int(f->size_major);
+ raw_x = raw2int(f->abs_x);
+ raw_y = raw2int(f->abs_y);
+
+ dprintk(9,
+ "bcm5974: "
+ "raw: p: %+05d w: %+05d x: %+05d y: %+05d n: %d\n",
+ raw_p, raw_w, raw_x, raw_y, raw_n);
+
+ ptest = int2bound(&c->p, raw_p);
+ origin = raw2int(f->origin);
+
+ /* while tracking finger still valid, count all fingers */
+ if (ptest > PRESSURE_LOW && origin) {
+ abs_p = ptest;
+ abs_w = int2bound(&c->w, raw_w);
+ abs_x = int2bound(&c->x, raw_x - c->x.devmin);
+ abs_y = int2bound(&c->y, c->y.devmax - raw_y);
+ while (raw_n--) {
+ ptest = int2bound(&c->p,
+ raw2int(f->force_major));
+ if (ptest > PRESSURE_LOW)
+ nmax++;
+ if (ptest > PRESSURE_HIGH)
+ nmin++;
+ f++;
+ }
+ }
+ }
+
+ /* set the integrated button if applicable */
+ if (c->tp_type == TYPE2)
+ ibt = raw2int(dev->tp_data[BUTTON_TYPE2]);
+
+ if (dev->fingers < nmin)
+ dev->fingers = nmin;
+ if (dev->fingers > nmax)
+ dev->fingers = nmax;
+
+ input_report_key(input, BTN_TOUCH, dev->fingers > 0);
+ input_report_key(input, BTN_TOOL_FINGER, dev->fingers == 1);
+ input_report_key(input, BTN_TOOL_DOUBLETAP, dev->fingers == 2);
+ input_report_key(input, BTN_TOOL_TRIPLETAP, dev->fingers == 3);
+ input_report_key(input, BTN_TOOL_QUADTAP, dev->fingers > 3);
+
+ input_report_abs(input, ABS_PRESSURE, abs_p);
+ input_report_abs(input, ABS_TOOL_WIDTH, abs_w);
+
+ if (abs_p) {
+ input_report_abs(input, ABS_X, abs_x);
+ input_report_abs(input, ABS_Y, abs_y);
+
+ dprintk(8,
+ "bcm5974: abs: p: %+05d w: %+05d x: %+05d y: %+05d "
+ "nmin: %d nmax: %d n: %d ibt: %d\n", abs_p, abs_w,
+ abs_x, abs_y, nmin, nmax, dev->fingers, ibt);
+
+ }
+
+ /* type 2 reports button events via ibt only */
+ if (c->tp_type == TYPE2)
+ input_report_key(input, BTN_LEFT, ibt);
+
+ input_sync(input);
+
+ return 0;
+}
+
+/* Wellspring initialization constants */
+#define BCM5974_WELLSPRING_MODE_READ_REQUEST_ID 1
+#define BCM5974_WELLSPRING_MODE_WRITE_REQUEST_ID 9
+#define BCM5974_WELLSPRING_MODE_REQUEST_VALUE 0x300
+#define BCM5974_WELLSPRING_MODE_REQUEST_INDEX 0
+#define BCM5974_WELLSPRING_MODE_VENDOR_VALUE 0x01
+#define BCM5974_WELLSPRING_MODE_NORMAL_VALUE 0x08
+
+static int bcm5974_wellspring_mode(struct bcm5974 *dev, bool on)
+{
+ char *data = kmalloc(8, GFP_KERNEL);
+ int retval = 0, size;
+
+ if (!data) {
+ err("bcm5974: out of memory");
+ retval = -ENOMEM;
+ goto out;
+ }
+
+ /* read configuration */
+ size = usb_control_msg(dev->udev, usb_rcvctrlpipe(dev->udev, 0),
+ BCM5974_WELLSPRING_MODE_READ_REQUEST_ID,
+ USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE,
+ BCM5974_WELLSPRING_MODE_REQUEST_VALUE,
+ BCM5974_WELLSPRING_MODE_REQUEST_INDEX, data, 8, 5000);
+
+ if (size != 8) {
+ err("bcm5974: could not read from device");
+ retval = -EIO;
+ goto out;
+ }
+
+ /* apply the mode switch */
+ data[0] = on ?
+ BCM5974_WELLSPRING_MODE_VENDOR_VALUE :
+ BCM5974_WELLSPRING_MODE_NORMAL_VALUE;
+
+ /* write configuration */
+ size = usb_control_msg(dev->udev, usb_sndctrlpipe(dev->udev, 0),
+ BCM5974_WELLSPRING_MODE_WRITE_REQUEST_ID,
+ USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE,
+ BCM5974_WELLSPRING_MODE_REQUEST_VALUE,
+ BCM5974_WELLSPRING_MODE_REQUEST_INDEX, data, 8, 5000);
+
+ if (size != 8) {
+ err("bcm5974: could not write to device");
+ retval = -EIO;
+ goto out;
+ }
+
+ dprintk(2, "bcm5974: switched to %s mode.\n",
+ on ? "wellspring" : "normal");
+
+ out:
+ kfree(data);
+ return retval;
+}
+
+static void bcm5974_irq_button(struct urb *urb)
+{
+ struct bcm5974 *dev = urb->context;
+ int error;
+
+ switch (urb->status) {
+ case 0:
+ break;
+ case -EOVERFLOW:
+ case -ECONNRESET:
+ case -ENOENT:
+ case -ESHUTDOWN:
+ dbg("bcm5974: button urb shutting down: %d", urb->status);
+ return;
+ default:
+ dbg("bcm5974: button urb status: %d", urb->status);
+ goto exit;
+ }
+
+ if (report_bt_state(dev, dev->bt_urb->actual_length))
+ dprintk(1, "bcm5974: bad button package, length: %d\n",
+ dev->bt_urb->actual_length);
+
+exit:
+ error = usb_submit_urb(dev->bt_urb, GFP_ATOMIC);
+ if (error)
+ err("bcm5974: button urb failed: %d", error);
+}
+
+static void bcm5974_irq_trackpad(struct urb *urb)
+{
+ struct bcm5974 *dev = urb->context;
+ int error;
+
+ switch (urb->status) {
+ case 0:
+ break;
+ case -EOVERFLOW:
+ case -ECONNRESET:
+ case -ENOENT:
+ case -ESHUTDOWN:
+ dbg("bcm5974: trackpad urb shutting down: %d", urb->status);
+ return;
+ default:
+ dbg("bcm5974: trackpad urb status: %d", urb->status);
+ goto exit;
+ }
+
+ /* control response ignored */
+ if (dev->tp_urb->actual_length == 2)
+ goto exit;
+
+ if (report_tp_state(dev, dev->tp_urb->actual_length))
+ dprintk(1, "bcm5974: bad trackpad package, length: %d\n",
+ dev->tp_urb->actual_length);
+
+exit:
+ error = usb_submit_urb(dev->tp_urb, GFP_ATOMIC);
+ if (error)
+ err("bcm5974: trackpad urb failed: %d", error);
+}
+
+/*
+ * The Wellspring trackpad, like many recent Apple trackpads, share
+ * the usb device with the keyboard. Since keyboards are usually
+ * handled by the HID system, the device ends up being handled by two
+ * modules. Setting up the device therefore becomes slightly
+ * complicated. To enable multitouch features, a mode switch is
+ * required, which is usually applied via the control interface of the
+ * device. It can be argued where this switch should take place. In
+ * some drivers, like appletouch, the switch is made during
+ * probe. However, the hid module may also alter the state of the
+ * device, resulting in trackpad malfunction under certain
+ * circumstances. To get around this problem, there is at least one
+ * example that utilizes the USB_QUIRK_RESET_RESUME quirk in order to
+ * receive a reset_resume request rather than the normal resume.
+ * Since the implementation of reset_resume is equal to mode switch
+ * plus start_traffic, it seems easier to always do the switch when
+ * starting traffic on the device.
+ */
+static int bcm5974_start_traffic(struct bcm5974 *dev)
+{
+ int error;
+
+ error = bcm5974_wellspring_mode(dev, true);
+ if (error) {
+ dprintk(1, "bcm5974: mode switch failed\n");
+ goto err_out;
+ }
+
+ error = usb_submit_urb(dev->bt_urb, GFP_KERNEL);
+ if (error)
+ goto err_reset_mode;
+
+ error = usb_submit_urb(dev->tp_urb, GFP_KERNEL);
+ if (error)
+ goto err_kill_bt;
+
+ return 0;
+
+err_kill_bt:
+ usb_kill_urb(dev->bt_urb);
+err_reset_mode:
+ bcm5974_wellspring_mode(dev, false);
+err_out:
+ return error;
+}
+
+static void bcm5974_pause_traffic(struct bcm5974 *dev)
+{
+ usb_kill_urb(dev->tp_urb);
+ usb_kill_urb(dev->bt_urb);
+ bcm5974_wellspring_mode(dev, false);
+}
+
+/*
+ * The code below implements open/close and manual suspend/resume.
+ * All functions may be called in random order.
+ *
+ * Opening a suspended device fails with EACCES - permission denied.
+ *
+ * Failing a resume leaves the device resumed but closed.
+ */
+static int bcm5974_open(struct input_dev *input)
+{
+ struct bcm5974 *dev = input_get_drvdata(input);
+ int error;
+
+ error = usb_autopm_get_interface(dev->intf);
+ if (error)
+ return error;
+
+ mutex_lock(&dev->pm_mutex);
+
+ error = bcm5974_start_traffic(dev);
+ if (!error)
+ dev->opened = 1;
+
+ mutex_unlock(&dev->pm_mutex);
+
+ if (error)
+ usb_autopm_put_interface(dev->intf);
+
+ return error;
+}
+
+static void bcm5974_close(struct input_dev *input)
+{
+ struct bcm5974 *dev = input_get_drvdata(input);
+
+ mutex_lock(&dev->pm_mutex);
+
+ bcm5974_pause_traffic(dev);
+ dev->opened = 0;
+
+ mutex_unlock(&dev->pm_mutex);
+
+ usb_autopm_put_interface(dev->intf);
+}
+
+static int bcm5974_suspend(struct usb_interface *iface, pm_message_t message)
+{
+ struct bcm5974 *dev = usb_get_intfdata(iface);
+
+ mutex_lock(&dev->pm_mutex);
+
+ if (dev->opened)
+ bcm5974_pause_traffic(dev);
+
+ mutex_unlock(&dev->pm_mutex);
+
+ return 0;
+}
+
+static int bcm5974_resume(struct usb_interface *iface)
+{
+ struct bcm5974 *dev = usb_get_intfdata(iface);
+ int error = 0;
+
+ mutex_lock(&dev->pm_mutex);
+
+ if (dev->opened)
+ error = bcm5974_start_traffic(dev);
+
+ mutex_unlock(&dev->pm_mutex);
+
+ return error;
+}
+
+static int bcm5974_probe(struct usb_interface *iface,
+ const struct usb_device_id *id)
+{
+ struct usb_device *udev = interface_to_usbdev(iface);
+ const struct bcm5974_config *cfg;
+ struct bcm5974 *dev;
+ struct input_dev *input_dev;
+ int error = -ENOMEM;
+
+ /* find the product index */
+ cfg = bcm5974_get_config(udev);
+
+ /* allocate memory for our device state and initialize it */
+ dev = kzalloc(sizeof(struct bcm5974), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!dev || !input_dev) {
+ err("bcm5974: out of memory");
+ goto err_free_devs;
+ }
+
+ dev->udev = udev;
+ dev->intf = iface;
+ dev->input = input_dev;
+ dev->cfg = *cfg;
+ mutex_init(&dev->pm_mutex);
+
+ /* setup urbs */
+ dev->bt_urb = usb_alloc_urb(0, GFP_KERNEL);
+ if (!dev->bt_urb)
+ goto err_free_devs;
+
+ dev->tp_urb = usb_alloc_urb(0, GFP_KERNEL);
+ if (!dev->tp_urb)
+ goto err_free_bt_urb;
+
+ dev->bt_data = usb_alloc_coherent(dev->udev,
+ dev->cfg.bt_datalen, GFP_KERNEL,
+ &dev->bt_urb->transfer_dma);
+ if (!dev->bt_data)
+ goto err_free_urb;
+
+ dev->tp_data = usb_alloc_coherent(dev->udev,
+ dev->cfg.tp_datalen, GFP_KERNEL,
+ &dev->tp_urb->transfer_dma);
+ if (!dev->tp_data)
+ goto err_free_bt_buffer;
+
+ usb_fill_int_urb(dev->bt_urb, udev,
+ usb_rcvintpipe(udev, cfg->bt_ep),
+ dev->bt_data, dev->cfg.bt_datalen,
+ bcm5974_irq_button, dev, 1);
+
+ usb_fill_int_urb(dev->tp_urb, udev,
+ usb_rcvintpipe(udev, cfg->tp_ep),
+ dev->tp_data, dev->cfg.tp_datalen,
+ bcm5974_irq_trackpad, dev, 1);
+
+ /* create bcm5974 device */
+ usb_make_path(udev, dev->phys, sizeof(dev->phys));
+ strlcat(dev->phys, "/input0", sizeof(dev->phys));
+
+ input_dev->name = "bcm5974";
+ input_dev->phys = dev->phys;
+ usb_to_input_id(dev->udev, &input_dev->id);
+ /* report driver capabilities via the version field */
+ input_dev->id.version = cfg->caps;
+ input_dev->dev.parent = &iface->dev;
+
+ input_set_drvdata(input_dev, dev);
+
+ input_dev->open = bcm5974_open;
+ input_dev->close = bcm5974_close;
+
+ setup_events_to_report(input_dev, cfg);
+
+ error = input_register_device(dev->input);
+ if (error)
+ goto err_free_buffer;
+
+ /* save our data pointer in this interface device */
+ usb_set_intfdata(iface, dev);
+
+ return 0;
+
+err_free_buffer:
+ usb_free_coherent(dev->udev, dev->cfg.tp_datalen,
+ dev->tp_data, dev->tp_urb->transfer_dma);
+err_free_bt_buffer:
+ usb_free_coherent(dev->udev, dev->cfg.bt_datalen,
+ dev->bt_data, dev->bt_urb->transfer_dma);
+err_free_urb:
+ usb_free_urb(dev->tp_urb);
+err_free_bt_urb:
+ usb_free_urb(dev->bt_urb);
+err_free_devs:
+ usb_set_intfdata(iface, NULL);
+ input_free_device(input_dev);
+ kfree(dev);
+ return error;
+}
+
+static void bcm5974_disconnect(struct usb_interface *iface)
+{
+ struct bcm5974 *dev = usb_get_intfdata(iface);
+
+ usb_set_intfdata(iface, NULL);
+
+ input_unregister_device(dev->input);
+ usb_free_coherent(dev->udev, dev->cfg.tp_datalen,
+ dev->tp_data, dev->tp_urb->transfer_dma);
+ usb_free_coherent(dev->udev, dev->cfg.bt_datalen,
+ dev->bt_data, dev->bt_urb->transfer_dma);
+ usb_free_urb(dev->tp_urb);
+ usb_free_urb(dev->bt_urb);
+ kfree(dev);
+}
+
+static struct usb_driver bcm5974_driver = {
+ .name = "bcm5974",
+ .probe = bcm5974_probe,
+ .disconnect = bcm5974_disconnect,
+ .suspend = bcm5974_suspend,
+ .resume = bcm5974_resume,
+ .id_table = bcm5974_table,
+ .supports_autosuspend = 1,
+};
+
+static int __init bcm5974_init(void)
+{
+ return usb_register(&bcm5974_driver);
+}
+
+static void __exit bcm5974_exit(void)
+{
+ usb_deregister(&bcm5974_driver);
+}
+
+module_init(bcm5974_init);
+module_exit(bcm5974_exit);
+
diff --git a/drivers/input/mouse/elantech.c b/drivers/input/mouse/elantech.c
new file mode 100644
index 0000000..e2a9867
--- /dev/null
+++ b/drivers/input/mouse/elantech.c
@@ -0,0 +1,1334 @@
+/*
+ * Elantech Touchpad driver (v6)
+ *
+ * Copyright (C) 2007-2009 Arjan Opmeer <arjan@opmeer.net>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ *
+ * Trademarks are the property of their respective owners.
+ */
+
+#include <linux/delay.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/input.h>
+#include <linux/input/mt.h>
+#include <linux/serio.h>
+#include <linux/libps2.h>
+#include "psmouse.h"
+#include "elantech.h"
+
+#define elantech_debug(fmt, ...) \
+ do { \
+ if (etd->debug) \
+ psmouse_printk(KERN_DEBUG, psmouse, \
+ fmt, ##__VA_ARGS__); \
+ } while (0)
+
+/*
+ * Send a Synaptics style sliced query command
+ */
+static int synaptics_send_cmd(struct psmouse *psmouse, unsigned char c,
+ unsigned char *param)
+{
+ if (psmouse_sliced_command(psmouse, c) ||
+ ps2_command(&psmouse->ps2dev, param, PSMOUSE_CMD_GETINFO)) {
+ psmouse_err(psmouse, "%s query 0x%02x failed.\n", __func__, c);
+ return -1;
+ }
+
+ return 0;
+}
+
+/*
+ * A retrying version of ps2_command
+ */
+static int elantech_ps2_command(struct psmouse *psmouse,
+ unsigned char *param, int command)
+{
+ struct ps2dev *ps2dev = &psmouse->ps2dev;
+ struct elantech_data *etd = psmouse->private;
+ int rc;
+ int tries = ETP_PS2_COMMAND_TRIES;
+
+ do {
+ rc = ps2_command(ps2dev, param, command);
+ if (rc == 0)
+ break;
+ tries--;
+ elantech_debug("retrying ps2 command 0x%02x (%d).\n",
+ command, tries);
+ msleep(ETP_PS2_COMMAND_DELAY);
+ } while (tries > 0);
+
+ if (rc)
+ psmouse_err(psmouse, "ps2 command 0x%02x failed.\n", command);
+
+ return rc;
+}
+
+/*
+ * Send an Elantech style special command to read a value from a register
+ */
+static int elantech_read_reg(struct psmouse *psmouse, unsigned char reg,
+ unsigned char *val)
+{
+ struct elantech_data *etd = psmouse->private;
+ unsigned char param[3];
+ int rc = 0;
+
+ if (reg < 0x07 || reg > 0x26)
+ return -1;
+
+ if (reg > 0x11 && reg < 0x20)
+ return -1;
+
+ switch (etd->hw_version) {
+ case 1:
+ if (psmouse_sliced_command(psmouse, ETP_REGISTER_READ) ||
+ psmouse_sliced_command(psmouse, reg) ||
+ ps2_command(&psmouse->ps2dev, param, PSMOUSE_CMD_GETINFO)) {
+ rc = -1;
+ }
+ break;
+
+ case 2:
+ if (elantech_ps2_command(psmouse, NULL, ETP_PS2_CUSTOM_COMMAND) ||
+ elantech_ps2_command(psmouse, NULL, ETP_REGISTER_READ) ||
+ elantech_ps2_command(psmouse, NULL, ETP_PS2_CUSTOM_COMMAND) ||
+ elantech_ps2_command(psmouse, NULL, reg) ||
+ elantech_ps2_command(psmouse, param, PSMOUSE_CMD_GETINFO)) {
+ rc = -1;
+ }
+ break;
+
+ case 3 ... 4:
+ if (elantech_ps2_command(psmouse, NULL, ETP_PS2_CUSTOM_COMMAND) ||
+ elantech_ps2_command(psmouse, NULL, ETP_REGISTER_READWRITE) ||
+ elantech_ps2_command(psmouse, NULL, ETP_PS2_CUSTOM_COMMAND) ||
+ elantech_ps2_command(psmouse, NULL, reg) ||
+ elantech_ps2_command(psmouse, param, PSMOUSE_CMD_GETINFO)) {
+ rc = -1;
+ }
+ break;
+ }
+
+ if (rc)
+ psmouse_err(psmouse, "failed to read register 0x%02x.\n", reg);
+ else if (etd->hw_version != 4)
+ *val = param[0];
+ else
+ *val = param[1];
+
+ return rc;
+}
+
+/*
+ * Send an Elantech style special command to write a register with a value
+ */
+static int elantech_write_reg(struct psmouse *psmouse, unsigned char reg,
+ unsigned char val)
+{
+ struct elantech_data *etd = psmouse->private;
+ int rc = 0;
+
+ if (reg < 0x07 || reg > 0x26)
+ return -1;
+
+ if (reg > 0x11 && reg < 0x20)
+ return -1;
+
+ switch (etd->hw_version) {
+ case 1:
+ if (psmouse_sliced_command(psmouse, ETP_REGISTER_WRITE) ||
+ psmouse_sliced_command(psmouse, reg) ||
+ psmouse_sliced_command(psmouse, val) ||
+ ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETSCALE11)) {
+ rc = -1;
+ }
+ break;
+
+ case 2:
+ if (elantech_ps2_command(psmouse, NULL, ETP_PS2_CUSTOM_COMMAND) ||
+ elantech_ps2_command(psmouse, NULL, ETP_REGISTER_WRITE) ||
+ elantech_ps2_command(psmouse, NULL, ETP_PS2_CUSTOM_COMMAND) ||
+ elantech_ps2_command(psmouse, NULL, reg) ||
+ elantech_ps2_command(psmouse, NULL, ETP_PS2_CUSTOM_COMMAND) ||
+ elantech_ps2_command(psmouse, NULL, val) ||
+ elantech_ps2_command(psmouse, NULL, PSMOUSE_CMD_SETSCALE11)) {
+ rc = -1;
+ }
+ break;
+
+ case 3:
+ if (elantech_ps2_command(psmouse, NULL, ETP_PS2_CUSTOM_COMMAND) ||
+ elantech_ps2_command(psmouse, NULL, ETP_REGISTER_READWRITE) ||
+ elantech_ps2_command(psmouse, NULL, ETP_PS2_CUSTOM_COMMAND) ||
+ elantech_ps2_command(psmouse, NULL, reg) ||
+ elantech_ps2_command(psmouse, NULL, ETP_PS2_CUSTOM_COMMAND) ||
+ elantech_ps2_command(psmouse, NULL, val) ||
+ elantech_ps2_command(psmouse, NULL, PSMOUSE_CMD_SETSCALE11)) {
+ rc = -1;
+ }
+ break;
+
+ case 4:
+ if (elantech_ps2_command(psmouse, NULL, ETP_PS2_CUSTOM_COMMAND) ||
+ elantech_ps2_command(psmouse, NULL, ETP_REGISTER_READWRITE) ||
+ elantech_ps2_command(psmouse, NULL, ETP_PS2_CUSTOM_COMMAND) ||
+ elantech_ps2_command(psmouse, NULL, reg) ||
+ elantech_ps2_command(psmouse, NULL, ETP_PS2_CUSTOM_COMMAND) ||
+ elantech_ps2_command(psmouse, NULL, ETP_REGISTER_READWRITE) ||
+ elantech_ps2_command(psmouse, NULL, ETP_PS2_CUSTOM_COMMAND) ||
+ elantech_ps2_command(psmouse, NULL, val) ||
+ elantech_ps2_command(psmouse, NULL, PSMOUSE_CMD_SETSCALE11)) {
+ rc = -1;
+ }
+ break;
+ }
+
+ if (rc)
+ psmouse_err(psmouse,
+ "failed to write register 0x%02x with value 0x%02x.\n",
+ reg, val);
+
+ return rc;
+}
+
+/*
+ * Dump a complete mouse movement packet to the syslog
+ */
+static void elantech_packet_dump(struct psmouse *psmouse)
+{
+ int i;
+
+ psmouse_printk(KERN_DEBUG, psmouse, "PS/2 packet [");
+ for (i = 0; i < psmouse->pktsize; i++)
+ printk("%s0x%02x ", i ? ", " : " ", psmouse->packet[i]);
+ printk("]\n");
+}
+
+/*
+ * Interpret complete data packets and report absolute mode input events for
+ * hardware version 1. (4 byte packets)
+ */
+static void elantech_report_absolute_v1(struct psmouse *psmouse)
+{
+ struct input_dev *dev = psmouse->dev;
+ struct elantech_data *etd = psmouse->private;
+ unsigned char *packet = psmouse->packet;
+ int fingers;
+
+ if (etd->fw_version < 0x020000) {
+ /*
+ * byte 0: D U p1 p2 1 p3 R L
+ * byte 1: f 0 th tw x9 x8 y9 y8
+ */
+ fingers = ((packet[1] & 0x80) >> 7) +
+ ((packet[1] & 0x30) >> 4);
+ } else {
+ /*
+ * byte 0: n1 n0 p2 p1 1 p3 R L
+ * byte 1: 0 0 0 0 x9 x8 y9 y8
+ */
+ fingers = (packet[0] & 0xc0) >> 6;
+ }
+
+ if (etd->jumpy_cursor) {
+ if (fingers != 1) {
+ etd->single_finger_reports = 0;
+ } else if (etd->single_finger_reports < 2) {
+ /* Discard first 2 reports of one finger, bogus */
+ etd->single_finger_reports++;
+ elantech_debug("discarding packet\n");
+ return;
+ }
+ }
+
+ input_report_key(dev, BTN_TOUCH, fingers != 0);
+
+ /*
+ * byte 2: x7 x6 x5 x4 x3 x2 x1 x0
+ * byte 3: y7 y6 y5 y4 y3 y2 y1 y0
+ */
+ if (fingers) {
+ input_report_abs(dev, ABS_X,
+ ((packet[1] & 0x0c) << 6) | packet[2]);
+ input_report_abs(dev, ABS_Y,
+ etd->y_max - (((packet[1] & 0x03) << 8) | packet[3]));
+ }
+
+ input_report_key(dev, BTN_TOOL_FINGER, fingers == 1);
+ input_report_key(dev, BTN_TOOL_DOUBLETAP, fingers == 2);
+ input_report_key(dev, BTN_TOOL_TRIPLETAP, fingers == 3);
+ input_report_key(dev, BTN_LEFT, packet[0] & 0x01);
+ input_report_key(dev, BTN_RIGHT, packet[0] & 0x02);
+
+ if (etd->fw_version < 0x020000 &&
+ (etd->capabilities[0] & ETP_CAP_HAS_ROCKER)) {
+ /* rocker up */
+ input_report_key(dev, BTN_FORWARD, packet[0] & 0x40);
+ /* rocker down */
+ input_report_key(dev, BTN_BACK, packet[0] & 0x80);
+ }
+
+ input_sync(dev);
+}
+
+static void elantech_set_slot(struct input_dev *dev, int slot, bool active,
+ unsigned int x, unsigned int y)
+{
+ input_mt_slot(dev, slot);
+ input_mt_report_slot_state(dev, MT_TOOL_FINGER, active);
+ if (active) {
+ input_report_abs(dev, ABS_MT_POSITION_X, x);
+ input_report_abs(dev, ABS_MT_POSITION_Y, y);
+ }
+}
+
+/* x1 < x2 and y1 < y2 when two fingers, x = y = 0 when not pressed */
+static void elantech_report_semi_mt_data(struct input_dev *dev,
+ unsigned int num_fingers,
+ unsigned int x1, unsigned int y1,
+ unsigned int x2, unsigned int y2)
+{
+ elantech_set_slot(dev, 0, num_fingers != 0, x1, y1);
+ elantech_set_slot(dev, 1, num_fingers == 2, x2, y2);
+}
+
+/*
+ * Interpret complete data packets and report absolute mode input events for
+ * hardware version 2. (6 byte packets)
+ */
+static void elantech_report_absolute_v2(struct psmouse *psmouse)
+{
+ struct elantech_data *etd = psmouse->private;
+ struct input_dev *dev = psmouse->dev;
+ unsigned char *packet = psmouse->packet;
+ unsigned int fingers, x1 = 0, y1 = 0, x2 = 0, y2 = 0;
+ unsigned int width = 0, pres = 0;
+
+ /* byte 0: n1 n0 . . . . R L */
+ fingers = (packet[0] & 0xc0) >> 6;
+
+ switch (fingers) {
+ case 3:
+ /*
+ * Same as one finger, except report of more than 3 fingers:
+ * byte 3: n4 . w1 w0 . . . .
+ */
+ if (packet[3] & 0x80)
+ fingers = 4;
+ /* pass through... */
+ case 1:
+ /*
+ * byte 1: . . . . x11 x10 x9 x8
+ * byte 2: x7 x6 x5 x4 x4 x2 x1 x0
+ */
+ x1 = ((packet[1] & 0x0f) << 8) | packet[2];
+ /*
+ * byte 4: . . . . y11 y10 y9 y8
+ * byte 5: y7 y6 y5 y4 y3 y2 y1 y0
+ */
+ y1 = etd->y_max - (((packet[4] & 0x0f) << 8) | packet[5]);
+
+ pres = (packet[1] & 0xf0) | ((packet[4] & 0xf0) >> 4);
+ width = ((packet[0] & 0x30) >> 2) | ((packet[3] & 0x30) >> 4);
+ break;
+
+ case 2:
+ /*
+ * The coordinate of each finger is reported separately
+ * with a lower resolution for two finger touches:
+ * byte 0: . . ay8 ax8 . . . .
+ * byte 1: ax7 ax6 ax5 ax4 ax3 ax2 ax1 ax0
+ */
+ x1 = (((packet[0] & 0x10) << 4) | packet[1]) << 2;
+ /* byte 2: ay7 ay6 ay5 ay4 ay3 ay2 ay1 ay0 */
+ y1 = etd->y_max -
+ ((((packet[0] & 0x20) << 3) | packet[2]) << 2);
+ /*
+ * byte 3: . . by8 bx8 . . . .
+ * byte 4: bx7 bx6 bx5 bx4 bx3 bx2 bx1 bx0
+ */
+ x2 = (((packet[3] & 0x10) << 4) | packet[4]) << 2;
+ /* byte 5: by7 by8 by5 by4 by3 by2 by1 by0 */
+ y2 = etd->y_max -
+ ((((packet[3] & 0x20) << 3) | packet[5]) << 2);
+
+ /* Unknown so just report sensible values */
+ pres = 127;
+ width = 7;
+ break;
+ }
+
+ input_report_key(dev, BTN_TOUCH, fingers != 0);
+ if (fingers != 0) {
+ input_report_abs(dev, ABS_X, x1);
+ input_report_abs(dev, ABS_Y, y1);
+ }
+ elantech_report_semi_mt_data(dev, fingers, x1, y1, x2, y2);
+ input_report_key(dev, BTN_TOOL_FINGER, fingers == 1);
+ input_report_key(dev, BTN_TOOL_DOUBLETAP, fingers == 2);
+ input_report_key(dev, BTN_TOOL_TRIPLETAP, fingers == 3);
+ input_report_key(dev, BTN_TOOL_QUADTAP, fingers == 4);
+ input_report_key(dev, BTN_LEFT, packet[0] & 0x01);
+ input_report_key(dev, BTN_RIGHT, packet[0] & 0x02);
+ if (etd->reports_pressure) {
+ input_report_abs(dev, ABS_PRESSURE, pres);
+ input_report_abs(dev, ABS_TOOL_WIDTH, width);
+ }
+
+ input_sync(dev);
+}
+
+/*
+ * Interpret complete data packets and report absolute mode input events for
+ * hardware version 3. (12 byte packets for two fingers)
+ */
+static void elantech_report_absolute_v3(struct psmouse *psmouse,
+ int packet_type)
+{
+ struct input_dev *dev = psmouse->dev;
+ struct elantech_data *etd = psmouse->private;
+ unsigned char *packet = psmouse->packet;
+ unsigned int fingers = 0, x1 = 0, y1 = 0, x2 = 0, y2 = 0;
+ unsigned int width = 0, pres = 0;
+
+ /* byte 0: n1 n0 . . . . R L */
+ fingers = (packet[0] & 0xc0) >> 6;
+
+ switch (fingers) {
+ case 3:
+ case 1:
+ /*
+ * byte 1: . . . . x11 x10 x9 x8
+ * byte 2: x7 x6 x5 x4 x4 x2 x1 x0
+ */
+ x1 = ((packet[1] & 0x0f) << 8) | packet[2];
+ /*
+ * byte 4: . . . . y11 y10 y9 y8
+ * byte 5: y7 y6 y5 y4 y3 y2 y1 y0
+ */
+ y1 = etd->y_max - (((packet[4] & 0x0f) << 8) | packet[5]);
+ break;
+
+ case 2:
+ if (packet_type == PACKET_V3_HEAD) {
+ /*
+ * byte 1: . . . . ax11 ax10 ax9 ax8
+ * byte 2: ax7 ax6 ax5 ax4 ax3 ax2 ax1 ax0
+ */
+ etd->mt[0].x = ((packet[1] & 0x0f) << 8) | packet[2];
+ /*
+ * byte 4: . . . . ay11 ay10 ay9 ay8
+ * byte 5: ay7 ay6 ay5 ay4 ay3 ay2 ay1 ay0
+ */
+ etd->mt[0].y = etd->y_max -
+ (((packet[4] & 0x0f) << 8) | packet[5]);
+ /*
+ * wait for next packet
+ */
+ return;
+ }
+
+ /* packet_type == PACKET_V3_TAIL */
+ x1 = etd->mt[0].x;
+ y1 = etd->mt[0].y;
+ x2 = ((packet[1] & 0x0f) << 8) | packet[2];
+ y2 = etd->y_max - (((packet[4] & 0x0f) << 8) | packet[5]);
+ break;
+ }
+
+ pres = (packet[1] & 0xf0) | ((packet[4] & 0xf0) >> 4);
+ width = ((packet[0] & 0x30) >> 2) | ((packet[3] & 0x30) >> 4);
+
+ input_report_key(dev, BTN_TOUCH, fingers != 0);
+ if (fingers != 0) {
+ input_report_abs(dev, ABS_X, x1);
+ input_report_abs(dev, ABS_Y, y1);
+ }
+ elantech_report_semi_mt_data(dev, fingers, x1, y1, x2, y2);
+ input_report_key(dev, BTN_TOOL_FINGER, fingers == 1);
+ input_report_key(dev, BTN_TOOL_DOUBLETAP, fingers == 2);
+ input_report_key(dev, BTN_TOOL_TRIPLETAP, fingers == 3);
+ input_report_key(dev, BTN_LEFT, packet[0] & 0x01);
+ input_report_key(dev, BTN_RIGHT, packet[0] & 0x02);
+ input_report_abs(dev, ABS_PRESSURE, pres);
+ input_report_abs(dev, ABS_TOOL_WIDTH, width);
+
+ input_sync(dev);
+}
+
+static void elantech_input_sync_v4(struct psmouse *psmouse)
+{
+ struct input_dev *dev = psmouse->dev;
+ unsigned char *packet = psmouse->packet;
+
+ input_report_key(dev, BTN_LEFT, packet[0] & 0x01);
+ input_report_key(dev, BTN_RIGHT, packet[0] & 0x02);
+ input_mt_report_pointer_emulation(dev, true);
+ input_sync(dev);
+}
+
+static void process_packet_status_v4(struct psmouse *psmouse)
+{
+ struct input_dev *dev = psmouse->dev;
+ unsigned char *packet = psmouse->packet;
+ unsigned fingers;
+ int i;
+
+ /* notify finger state change */
+ fingers = packet[1] & 0x1f;
+ for (i = 0; i < ETP_MAX_FINGERS; i++) {
+ if ((fingers & (1 << i)) == 0) {
+ input_mt_slot(dev, i);
+ input_mt_report_slot_state(dev, MT_TOOL_FINGER, false);
+ }
+ }
+
+ elantech_input_sync_v4(psmouse);
+}
+
+static void process_packet_head_v4(struct psmouse *psmouse)
+{
+ struct input_dev *dev = psmouse->dev;
+ struct elantech_data *etd = psmouse->private;
+ unsigned char *packet = psmouse->packet;
+ int id = ((packet[3] & 0xe0) >> 5) - 1;
+ int pres, traces;
+
+ if (id < 0)
+ return;
+
+ etd->mt[id].x = ((packet[1] & 0x0f) << 8) | packet[2];
+ etd->mt[id].y = etd->y_max - (((packet[4] & 0x0f) << 8) | packet[5]);
+ pres = (packet[1] & 0xf0) | ((packet[4] & 0xf0) >> 4);
+ traces = (packet[0] & 0xf0) >> 4;
+
+ input_mt_slot(dev, id);
+ input_mt_report_slot_state(dev, MT_TOOL_FINGER, true);
+
+ input_report_abs(dev, ABS_MT_POSITION_X, etd->mt[id].x);
+ input_report_abs(dev, ABS_MT_POSITION_Y, etd->mt[id].y);
+ input_report_abs(dev, ABS_MT_PRESSURE, pres);
+ input_report_abs(dev, ABS_MT_TOUCH_MAJOR, traces * etd->width);
+ /* report this for backwards compatibility */
+ input_report_abs(dev, ABS_TOOL_WIDTH, traces);
+
+ elantech_input_sync_v4(psmouse);
+}
+
+static void process_packet_motion_v4(struct psmouse *psmouse)
+{
+ struct input_dev *dev = psmouse->dev;
+ struct elantech_data *etd = psmouse->private;
+ unsigned char *packet = psmouse->packet;
+ int weight, delta_x1 = 0, delta_y1 = 0, delta_x2 = 0, delta_y2 = 0;
+ int id, sid;
+
+ id = ((packet[0] & 0xe0) >> 5) - 1;
+ if (id < 0)
+ return;
+
+ sid = ((packet[3] & 0xe0) >> 5) - 1;
+ weight = (packet[0] & 0x10) ? ETP_WEIGHT_VALUE : 1;
+ /*
+ * Motion packets give us the delta of x, y values of specific fingers,
+ * but in two's complement. Let the compiler do the conversion for us.
+ * Also _enlarge_ the numbers to int, in case of overflow.
+ */
+ delta_x1 = (signed char)packet[1];
+ delta_y1 = (signed char)packet[2];
+ delta_x2 = (signed char)packet[4];
+ delta_y2 = (signed char)packet[5];
+
+ etd->mt[id].x += delta_x1 * weight;
+ etd->mt[id].y -= delta_y1 * weight;
+ input_mt_slot(dev, id);
+ input_report_abs(dev, ABS_MT_POSITION_X, etd->mt[id].x);
+ input_report_abs(dev, ABS_MT_POSITION_Y, etd->mt[id].y);
+
+ if (sid >= 0) {
+ etd->mt[sid].x += delta_x2 * weight;
+ etd->mt[sid].y -= delta_y2 * weight;
+ input_mt_slot(dev, sid);
+ input_report_abs(dev, ABS_MT_POSITION_X, etd->mt[sid].x);
+ input_report_abs(dev, ABS_MT_POSITION_Y, etd->mt[sid].y);
+ }
+
+ elantech_input_sync_v4(psmouse);
+}
+
+static void elantech_report_absolute_v4(struct psmouse *psmouse,
+ int packet_type)
+{
+ switch (packet_type) {
+ case PACKET_V4_STATUS:
+ process_packet_status_v4(psmouse);
+ break;
+
+ case PACKET_V4_HEAD:
+ process_packet_head_v4(psmouse);
+ break;
+
+ case PACKET_V4_MOTION:
+ process_packet_motion_v4(psmouse);
+ break;
+
+ case PACKET_UNKNOWN:
+ default:
+ /* impossible to get here */
+ break;
+ }
+}
+
+static int elantech_packet_check_v1(struct psmouse *psmouse)
+{
+ struct elantech_data *etd = psmouse->private;
+ unsigned char *packet = psmouse->packet;
+ unsigned char p1, p2, p3;
+
+ /* Parity bits are placed differently */
+ if (etd->fw_version < 0x020000) {
+ /* byte 0: D U p1 p2 1 p3 R L */
+ p1 = (packet[0] & 0x20) >> 5;
+ p2 = (packet[0] & 0x10) >> 4;
+ } else {
+ /* byte 0: n1 n0 p2 p1 1 p3 R L */
+ p1 = (packet[0] & 0x10) >> 4;
+ p2 = (packet[0] & 0x20) >> 5;
+ }
+
+ p3 = (packet[0] & 0x04) >> 2;
+
+ return etd->parity[packet[1]] == p1 &&
+ etd->parity[packet[2]] == p2 &&
+ etd->parity[packet[3]] == p3;
+}
+
+static int elantech_debounce_check_v2(struct psmouse *psmouse)
+{
+ /*
+ * When we encounter packet that matches this exactly, it means the
+ * hardware is in debounce status. Just ignore the whole packet.
+ */
+ const u8 debounce_packet[] = { 0x84, 0xff, 0xff, 0x02, 0xff, 0xff };
+ unsigned char *packet = psmouse->packet;
+
+ return !memcmp(packet, debounce_packet, sizeof(debounce_packet));
+}
+
+static int elantech_packet_check_v2(struct psmouse *psmouse)
+{
+ struct elantech_data *etd = psmouse->private;
+ unsigned char *packet = psmouse->packet;
+
+ /*
+ * V2 hardware has two flavors. Older ones that do not report pressure,
+ * and newer ones that reports pressure and width. With newer ones, all
+ * packets (1, 2, 3 finger touch) have the same constant bits. With
+ * older ones, 1/3 finger touch packets and 2 finger touch packets
+ * have different constant bits.
+ * With all three cases, if the constant bits are not exactly what I
+ * expected, I consider them invalid.
+ */
+ if (etd->reports_pressure)
+ return (packet[0] & 0x0c) == 0x04 &&
+ (packet[3] & 0x0f) == 0x02;
+
+ if ((packet[0] & 0xc0) == 0x80)
+ return (packet[0] & 0x0c) == 0x0c &&
+ (packet[3] & 0x0e) == 0x08;
+
+ return (packet[0] & 0x3c) == 0x3c &&
+ (packet[1] & 0xf0) == 0x00 &&
+ (packet[3] & 0x3e) == 0x38 &&
+ (packet[4] & 0xf0) == 0x00;
+}
+
+/*
+ * We check the constant bits to determine what packet type we get,
+ * so packet checking is mandatory for v3 and later hardware.
+ */
+static int elantech_packet_check_v3(struct psmouse *psmouse)
+{
+ const u8 debounce_packet[] = { 0xc4, 0xff, 0xff, 0x02, 0xff, 0xff };
+ unsigned char *packet = psmouse->packet;
+
+ /*
+ * check debounce first, it has the same signature in byte 0
+ * and byte 3 as PACKET_V3_HEAD.
+ */
+ if (!memcmp(packet, debounce_packet, sizeof(debounce_packet)))
+ return PACKET_DEBOUNCE;
+
+ if ((packet[0] & 0x0c) == 0x04 && (packet[3] & 0xcf) == 0x02)
+ return PACKET_V3_HEAD;
+
+ if ((packet[0] & 0x0c) == 0x0c && (packet[3] & 0xce) == 0x0c)
+ return PACKET_V3_TAIL;
+
+ return PACKET_UNKNOWN;
+}
+
+static int elantech_packet_check_v4(struct psmouse *psmouse)
+{
+ unsigned char *packet = psmouse->packet;
+
+ if ((packet[0] & 0x0c) == 0x04 &&
+ (packet[3] & 0x1f) == 0x11)
+ return PACKET_V4_HEAD;
+
+ if ((packet[0] & 0x0c) == 0x04 &&
+ (packet[3] & 0x1f) == 0x12)
+ return PACKET_V4_MOTION;
+
+ if ((packet[0] & 0x0c) == 0x04 &&
+ (packet[3] & 0x1f) == 0x10)
+ return PACKET_V4_STATUS;
+
+ return PACKET_UNKNOWN;
+}
+
+/*
+ * Process byte stream from mouse and handle complete packets
+ */
+static psmouse_ret_t elantech_process_byte(struct psmouse *psmouse)
+{
+ struct elantech_data *etd = psmouse->private;
+ int packet_type;
+
+ if (psmouse->pktcnt < psmouse->pktsize)
+ return PSMOUSE_GOOD_DATA;
+
+ if (etd->debug > 1)
+ elantech_packet_dump(psmouse);
+
+ switch (etd->hw_version) {
+ case 1:
+ if (etd->paritycheck && !elantech_packet_check_v1(psmouse))
+ return PSMOUSE_BAD_DATA;
+
+ elantech_report_absolute_v1(psmouse);
+ break;
+
+ case 2:
+ /* ignore debounce */
+ if (elantech_debounce_check_v2(psmouse))
+ return PSMOUSE_FULL_PACKET;
+
+ if (etd->paritycheck && !elantech_packet_check_v2(psmouse))
+ return PSMOUSE_BAD_DATA;
+
+ elantech_report_absolute_v2(psmouse);
+ break;
+
+ case 3:
+ packet_type = elantech_packet_check_v3(psmouse);
+ /* ignore debounce */
+ if (packet_type == PACKET_DEBOUNCE)
+ return PSMOUSE_FULL_PACKET;
+
+ if (packet_type == PACKET_UNKNOWN)
+ return PSMOUSE_BAD_DATA;
+
+ elantech_report_absolute_v3(psmouse, packet_type);
+ break;
+
+ case 4:
+ packet_type = elantech_packet_check_v4(psmouse);
+ if (packet_type == PACKET_UNKNOWN)
+ return PSMOUSE_BAD_DATA;
+
+ elantech_report_absolute_v4(psmouse, packet_type);
+ break;
+ }
+
+ return PSMOUSE_FULL_PACKET;
+}
+
+/*
+ * Put the touchpad into absolute mode
+ */
+static int elantech_set_absolute_mode(struct psmouse *psmouse)
+{
+ struct elantech_data *etd = psmouse->private;
+ unsigned char val;
+ int tries = ETP_READ_BACK_TRIES;
+ int rc = 0;
+
+ switch (etd->hw_version) {
+ case 1:
+ etd->reg_10 = 0x16;
+ etd->reg_11 = 0x8f;
+ if (elantech_write_reg(psmouse, 0x10, etd->reg_10) ||
+ elantech_write_reg(psmouse, 0x11, etd->reg_11)) {
+ rc = -1;
+ }
+ break;
+
+ case 2:
+ /* Windows driver values */
+ etd->reg_10 = 0x54;
+ etd->reg_11 = 0x88; /* 0x8a */
+ etd->reg_21 = 0x60; /* 0x00 */
+ if (elantech_write_reg(psmouse, 0x10, etd->reg_10) ||
+ elantech_write_reg(psmouse, 0x11, etd->reg_11) ||
+ elantech_write_reg(psmouse, 0x21, etd->reg_21)) {
+ rc = -1;
+ }
+ break;
+
+ case 3:
+ etd->reg_10 = 0x0b;
+ if (elantech_write_reg(psmouse, 0x10, etd->reg_10))
+ rc = -1;
+
+ break;
+
+ case 4:
+ etd->reg_07 = 0x01;
+ if (elantech_write_reg(psmouse, 0x07, etd->reg_07))
+ rc = -1;
+
+ goto skip_readback_reg_10; /* v4 has no reg 0x10 to read */
+ }
+
+ if (rc == 0) {
+ /*
+ * Read back reg 0x10. For hardware version 1 we must make
+ * sure the absolute mode bit is set. For hardware version 2
+ * the touchpad is probably initializing and not ready until
+ * we read back the value we just wrote.
+ */
+ do {
+ rc = elantech_read_reg(psmouse, 0x10, &val);
+ if (rc == 0)
+ break;
+ tries--;
+ elantech_debug("retrying read (%d).\n", tries);
+ msleep(ETP_READ_BACK_DELAY);
+ } while (tries > 0);
+
+ if (rc) {
+ psmouse_err(psmouse,
+ "failed to read back register 0x10.\n");
+ } else if (etd->hw_version == 1 &&
+ !(val & ETP_R10_ABSOLUTE_MODE)) {
+ psmouse_err(psmouse,
+ "touchpad refuses to switch to absolute mode.\n");
+ rc = -1;
+ }
+ }
+
+ skip_readback_reg_10:
+ if (rc)
+ psmouse_err(psmouse, "failed to initialise registers.\n");
+
+ return rc;
+}
+
+static int elantech_set_range(struct psmouse *psmouse,
+ unsigned int *x_min, unsigned int *y_min,
+ unsigned int *x_max, unsigned int *y_max,
+ unsigned int *width)
+{
+ struct elantech_data *etd = psmouse->private;
+ unsigned char param[3];
+ unsigned char traces;
+
+ switch (etd->hw_version) {
+ case 1:
+ *x_min = ETP_XMIN_V1;
+ *y_min = ETP_YMIN_V1;
+ *x_max = ETP_XMAX_V1;
+ *y_max = ETP_YMAX_V1;
+ break;
+
+ case 2:
+ if (etd->fw_version == 0x020800 ||
+ etd->fw_version == 0x020b00 ||
+ etd->fw_version == 0x020030) {
+ *x_min = ETP_XMIN_V2;
+ *y_min = ETP_YMIN_V2;
+ *x_max = ETP_XMAX_V2;
+ *y_max = ETP_YMAX_V2;
+ } else {
+ int i;
+ int fixed_dpi;
+
+ i = (etd->fw_version > 0x020800 &&
+ etd->fw_version < 0x020900) ? 1 : 2;
+
+ if (synaptics_send_cmd(psmouse, ETP_FW_ID_QUERY, param))
+ return -1;
+
+ fixed_dpi = param[1] & 0x10;
+
+ if (((etd->fw_version >> 16) == 0x14) && fixed_dpi) {
+ if (synaptics_send_cmd(psmouse, ETP_SAMPLE_QUERY, param))
+ return -1;
+
+ *x_max = (etd->capabilities[1] - i) * param[1] / 2;
+ *y_max = (etd->capabilities[2] - i) * param[2] / 2;
+ } else if (etd->fw_version == 0x040216) {
+ *x_max = 819;
+ *y_max = 405;
+ } else if (etd->fw_version == 0x040219 || etd->fw_version == 0x040215) {
+ *x_max = 900;
+ *y_max = 500;
+ } else {
+ *x_max = (etd->capabilities[1] - i) * 64;
+ *y_max = (etd->capabilities[2] - i) * 64;
+ }
+ }
+ break;
+
+ case 3:
+ if (synaptics_send_cmd(psmouse, ETP_FW_ID_QUERY, param))
+ return -1;
+
+ *x_max = (0x0f & param[0]) << 8 | param[1];
+ *y_max = (0xf0 & param[0]) << 4 | param[2];
+ break;
+
+ case 4:
+ if (synaptics_send_cmd(psmouse, ETP_FW_ID_QUERY, param))
+ return -1;
+
+ *x_max = (0x0f & param[0]) << 8 | param[1];
+ *y_max = (0xf0 & param[0]) << 4 | param[2];
+ traces = etd->capabilities[1];
+ if ((traces < 2) || (traces > *x_max))
+ return -1;
+
+ *width = *x_max / (traces - 1);
+ break;
+ }
+
+ return 0;
+}
+
+/*
+ * Set the appropriate event bits for the input subsystem
+ */
+static int elantech_set_input_params(struct psmouse *psmouse)
+{
+ struct input_dev *dev = psmouse->dev;
+ struct elantech_data *etd = psmouse->private;
+ unsigned int x_min = 0, y_min = 0, x_max = 0, y_max = 0, width = 0;
+
+ if (elantech_set_range(psmouse, &x_min, &y_min, &x_max, &y_max, &width))
+ return -1;
+
+ __set_bit(EV_KEY, dev->evbit);
+ __set_bit(EV_ABS, dev->evbit);
+ __clear_bit(EV_REL, dev->evbit);
+
+ __set_bit(BTN_LEFT, dev->keybit);
+ __set_bit(BTN_RIGHT, dev->keybit);
+
+ __set_bit(BTN_TOUCH, dev->keybit);
+ __set_bit(BTN_TOOL_FINGER, dev->keybit);
+ __set_bit(BTN_TOOL_DOUBLETAP, dev->keybit);
+ __set_bit(BTN_TOOL_TRIPLETAP, dev->keybit);
+
+ switch (etd->hw_version) {
+ case 1:
+ /* Rocker button */
+ if (etd->fw_version < 0x020000 &&
+ (etd->capabilities[0] & ETP_CAP_HAS_ROCKER)) {
+ __set_bit(BTN_FORWARD, dev->keybit);
+ __set_bit(BTN_BACK, dev->keybit);
+ }
+ input_set_abs_params(dev, ABS_X, x_min, x_max, 0, 0);
+ input_set_abs_params(dev, ABS_Y, y_min, y_max, 0, 0);
+ break;
+
+ case 2:
+ __set_bit(BTN_TOOL_QUADTAP, dev->keybit);
+ __set_bit(INPUT_PROP_SEMI_MT, dev->propbit);
+ /* fall through */
+ case 3:
+ input_set_abs_params(dev, ABS_X, x_min, x_max, 0, 0);
+ input_set_abs_params(dev, ABS_Y, y_min, y_max, 0, 0);
+ if (etd->reports_pressure) {
+ input_set_abs_params(dev, ABS_PRESSURE, ETP_PMIN_V2,
+ ETP_PMAX_V2, 0, 0);
+ input_set_abs_params(dev, ABS_TOOL_WIDTH, ETP_WMIN_V2,
+ ETP_WMAX_V2, 0, 0);
+ }
+ input_mt_init_slots(dev, 2);
+ input_set_abs_params(dev, ABS_MT_POSITION_X, x_min, x_max, 0, 0);
+ input_set_abs_params(dev, ABS_MT_POSITION_Y, y_min, y_max, 0, 0);
+ break;
+
+ case 4:
+ __set_bit(BTN_TOOL_QUADTAP, dev->keybit);
+ /* For X to recognize me as touchpad. */
+ input_set_abs_params(dev, ABS_X, x_min, x_max, 0, 0);
+ input_set_abs_params(dev, ABS_Y, y_min, y_max, 0, 0);
+ /*
+ * range of pressure and width is the same as v2,
+ * report ABS_PRESSURE, ABS_TOOL_WIDTH for compatibility.
+ */
+ input_set_abs_params(dev, ABS_PRESSURE, ETP_PMIN_V2,
+ ETP_PMAX_V2, 0, 0);
+ input_set_abs_params(dev, ABS_TOOL_WIDTH, ETP_WMIN_V2,
+ ETP_WMAX_V2, 0, 0);
+ /* Multitouch capable pad, up to 5 fingers. */
+ input_mt_init_slots(dev, ETP_MAX_FINGERS);
+ input_set_abs_params(dev, ABS_MT_POSITION_X, x_min, x_max, 0, 0);
+ input_set_abs_params(dev, ABS_MT_POSITION_Y, y_min, y_max, 0, 0);
+ input_set_abs_params(dev, ABS_MT_PRESSURE, ETP_PMIN_V2,
+ ETP_PMAX_V2, 0, 0);
+ /*
+ * The firmware reports how many trace lines the finger spans,
+ * convert to surface unit as Protocol-B requires.
+ */
+ input_set_abs_params(dev, ABS_MT_TOUCH_MAJOR, 0,
+ ETP_WMAX_V2 * width, 0, 0);
+ break;
+ }
+
+ etd->y_max = y_max;
+ etd->width = width;
+
+ return 0;
+}
+
+struct elantech_attr_data {
+ size_t field_offset;
+ unsigned char reg;
+};
+
+/*
+ * Display a register value by reading a sysfs entry
+ */
+static ssize_t elantech_show_int_attr(struct psmouse *psmouse, void *data,
+ char *buf)
+{
+ struct elantech_data *etd = psmouse->private;
+ struct elantech_attr_data *attr = data;
+ unsigned char *reg = (unsigned char *) etd + attr->field_offset;
+ int rc = 0;
+
+ if (attr->reg)
+ rc = elantech_read_reg(psmouse, attr->reg, reg);
+
+ return sprintf(buf, "0x%02x\n", (attr->reg && rc) ? -1 : *reg);
+}
+
+/*
+ * Write a register value by writing a sysfs entry
+ */
+static ssize_t elantech_set_int_attr(struct psmouse *psmouse,
+ void *data, const char *buf, size_t count)
+{
+ struct elantech_data *etd = psmouse->private;
+ struct elantech_attr_data *attr = data;
+ unsigned char *reg = (unsigned char *) etd + attr->field_offset;
+ unsigned long value;
+ int err;
+
+ err = strict_strtoul(buf, 16, &value);
+ if (err)
+ return err;
+
+ if (value > 0xff)
+ return -EINVAL;
+
+ /* Do we need to preserve some bits for version 2 hardware too? */
+ if (etd->hw_version == 1) {
+ if (attr->reg == 0x10)
+ /* Force absolute mode always on */
+ value |= ETP_R10_ABSOLUTE_MODE;
+ else if (attr->reg == 0x11)
+ /* Force 4 byte mode always on */
+ value |= ETP_R11_4_BYTE_MODE;
+ }
+
+ if (!attr->reg || elantech_write_reg(psmouse, attr->reg, value) == 0)
+ *reg = value;
+
+ return count;
+}
+
+#define ELANTECH_INT_ATTR(_name, _register) \
+ static struct elantech_attr_data elantech_attr_##_name = { \
+ .field_offset = offsetof(struct elantech_data, _name), \
+ .reg = _register, \
+ }; \
+ PSMOUSE_DEFINE_ATTR(_name, S_IWUSR | S_IRUGO, \
+ &elantech_attr_##_name, \
+ elantech_show_int_attr, \
+ elantech_set_int_attr)
+
+ELANTECH_INT_ATTR(reg_07, 0x07);
+ELANTECH_INT_ATTR(reg_10, 0x10);
+ELANTECH_INT_ATTR(reg_11, 0x11);
+ELANTECH_INT_ATTR(reg_20, 0x20);
+ELANTECH_INT_ATTR(reg_21, 0x21);
+ELANTECH_INT_ATTR(reg_22, 0x22);
+ELANTECH_INT_ATTR(reg_23, 0x23);
+ELANTECH_INT_ATTR(reg_24, 0x24);
+ELANTECH_INT_ATTR(reg_25, 0x25);
+ELANTECH_INT_ATTR(reg_26, 0x26);
+ELANTECH_INT_ATTR(debug, 0);
+ELANTECH_INT_ATTR(paritycheck, 0);
+
+static struct attribute *elantech_attrs[] = {
+ &psmouse_attr_reg_07.dattr.attr,
+ &psmouse_attr_reg_10.dattr.attr,
+ &psmouse_attr_reg_11.dattr.attr,
+ &psmouse_attr_reg_20.dattr.attr,
+ &psmouse_attr_reg_21.dattr.attr,
+ &psmouse_attr_reg_22.dattr.attr,
+ &psmouse_attr_reg_23.dattr.attr,
+ &psmouse_attr_reg_24.dattr.attr,
+ &psmouse_attr_reg_25.dattr.attr,
+ &psmouse_attr_reg_26.dattr.attr,
+ &psmouse_attr_debug.dattr.attr,
+ &psmouse_attr_paritycheck.dattr.attr,
+ NULL
+};
+
+static struct attribute_group elantech_attr_group = {
+ .attrs = elantech_attrs,
+};
+
+static bool elantech_is_signature_valid(const unsigned char *param)
+{
+ static const unsigned char rates[] = { 200, 100, 80, 60, 40, 20, 10 };
+ int i;
+
+ if (param[0] == 0)
+ return false;
+
+ if (param[1] == 0)
+ return true;
+
+ for (i = 0; i < ARRAY_SIZE(rates); i++)
+ if (param[2] == rates[i])
+ return false;
+
+ return true;
+}
+
+/*
+ * Use magic knock to detect Elantech touchpad
+ */
+int elantech_detect(struct psmouse *psmouse, bool set_properties)
+{
+ struct ps2dev *ps2dev = &psmouse->ps2dev;
+ unsigned char param[3];
+
+ ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_RESET_DIS);
+
+ if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) ||
+ ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) ||
+ ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) ||
+ ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) ||
+ ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO)) {
+ psmouse_dbg(psmouse, "sending Elantech magic knock failed.\n");
+ return -1;
+ }
+
+ /*
+ * Report this in case there are Elantech models that use a different
+ * set of magic numbers
+ */
+ if (param[0] != 0x3c || param[1] != 0x03 ||
+ (param[2] != 0xc8 && param[2] != 0x00)) {
+ psmouse_dbg(psmouse,
+ "unexpected magic knock result 0x%02x, 0x%02x, 0x%02x.\n",
+ param[0], param[1], param[2]);
+ return -1;
+ }
+
+ /*
+ * Query touchpad's firmware version and see if it reports known
+ * value to avoid mis-detection. Logitech mice are known to respond
+ * to Elantech magic knock and there might be more.
+ */
+ if (synaptics_send_cmd(psmouse, ETP_FW_VERSION_QUERY, param)) {
+ psmouse_dbg(psmouse, "failed to query firmware version.\n");
+ return -1;
+ }
+
+ psmouse_dbg(psmouse,
+ "Elantech version query result 0x%02x, 0x%02x, 0x%02x.\n",
+ param[0], param[1], param[2]);
+
+ if (!elantech_is_signature_valid(param)) {
+ psmouse_dbg(psmouse,
+ "Probably not a real Elantech touchpad. Aborting.\n");
+ return -1;
+ }
+
+ if (set_properties) {
+ psmouse->vendor = "Elantech";
+ psmouse->name = "Touchpad";
+ }
+
+ return 0;
+}
+
+/*
+ * Clean up sysfs entries when disconnecting
+ */
+static void elantech_disconnect(struct psmouse *psmouse)
+{
+ sysfs_remove_group(&psmouse->ps2dev.serio->dev.kobj,
+ &elantech_attr_group);
+ kfree(psmouse->private);
+ psmouse->private = NULL;
+}
+
+/*
+ * Put the touchpad back into absolute mode when reconnecting
+ */
+static int elantech_reconnect(struct psmouse *psmouse)
+{
+ if (elantech_detect(psmouse, 0))
+ return -1;
+
+ if (elantech_set_absolute_mode(psmouse)) {
+ psmouse_err(psmouse,
+ "failed to put touchpad back into absolute mode.\n");
+ return -1;
+ }
+
+ return 0;
+}
+
+/*
+ * determine hardware version and set some properties according to it.
+ */
+static int elantech_set_properties(struct elantech_data *etd)
+{
+ /* This represents the version of IC body. */
+ int ver = (etd->fw_version & 0x0f0000) >> 16;
+
+ /* Early version of Elan touchpads doesn't obey the rule. */
+ if (etd->fw_version < 0x020030 || etd->fw_version == 0x020600)
+ etd->hw_version = 1;
+ else {
+ switch (ver) {
+ case 2:
+ case 4:
+ etd->hw_version = 2;
+ break;
+ case 5:
+ etd->hw_version = 3;
+ break;
+ case 6:
+ etd->hw_version = 4;
+ break;
+ default:
+ return -1;
+ }
+ }
+
+ /*
+ * Turn on packet checking by default.
+ */
+ etd->paritycheck = 1;
+
+ /*
+ * This firmware suffers from misreporting coordinates when
+ * a touch action starts causing the mouse cursor or scrolled page
+ * to jump. Enable a workaround.
+ */
+ etd->jumpy_cursor =
+ (etd->fw_version == 0x020022 || etd->fw_version == 0x020600);
+
+ if (etd->hw_version > 1) {
+ /* For now show extra debug information */
+ etd->debug = 1;
+
+ if (etd->fw_version >= 0x020800)
+ etd->reports_pressure = true;
+ }
+
+ return 0;
+}
+
+/*
+ * Initialize the touchpad and create sysfs entries
+ */
+int elantech_init(struct psmouse *psmouse)
+{
+ struct elantech_data *etd;
+ int i, error;
+ unsigned char param[3];
+
+ psmouse->private = etd = kzalloc(sizeof(struct elantech_data), GFP_KERNEL);
+ if (!etd)
+ return -ENOMEM;
+
+ etd->parity[0] = 1;
+ for (i = 1; i < 256; i++)
+ etd->parity[i] = etd->parity[i & (i - 1)] ^ 1;
+
+ /*
+ * Do the version query again so we can store the result
+ */
+ if (synaptics_send_cmd(psmouse, ETP_FW_VERSION_QUERY, param)) {
+ psmouse_err(psmouse, "failed to query firmware version.\n");
+ goto init_fail;
+ }
+ etd->fw_version = (param[0] << 16) | (param[1] << 8) | param[2];
+
+ if (elantech_set_properties(etd)) {
+ psmouse_err(psmouse, "unknown hardware version, aborting...\n");
+ goto init_fail;
+ }
+ psmouse_info(psmouse,
+ "assuming hardware version %d (with firmware version 0x%02x%02x%02x)\n",
+ etd->hw_version, param[0], param[1], param[2]);
+
+ if (synaptics_send_cmd(psmouse, ETP_CAPABILITIES_QUERY,
+ etd->capabilities)) {
+ psmouse_err(psmouse, "failed to query capabilities.\n");
+ goto init_fail;
+ }
+ psmouse_info(psmouse,
+ "Synaptics capabilities query result 0x%02x, 0x%02x, 0x%02x.\n",
+ etd->capabilities[0], etd->capabilities[1],
+ etd->capabilities[2]);
+
+ if (elantech_set_absolute_mode(psmouse)) {
+ psmouse_err(psmouse,
+ "failed to put touchpad into absolute mode.\n");
+ goto init_fail;
+ }
+
+ if (elantech_set_input_params(psmouse)) {
+ psmouse_err(psmouse, "failed to query touchpad range.\n");
+ goto init_fail;
+ }
+
+ error = sysfs_create_group(&psmouse->ps2dev.serio->dev.kobj,
+ &elantech_attr_group);
+ if (error) {
+ psmouse_err(psmouse,
+ "failed to create sysfs attributes, error: %d.\n",
+ error);
+ goto init_fail;
+ }
+
+ psmouse->protocol_handler = elantech_process_byte;
+ psmouse->disconnect = elantech_disconnect;
+ psmouse->reconnect = elantech_reconnect;
+ psmouse->pktsize = etd->hw_version > 1 ? 6 : 4;
+
+ return 0;
+
+ init_fail:
+ kfree(etd);
+ return -1;
+}
diff --git a/drivers/input/mouse/elantech.h b/drivers/input/mouse/elantech.h
new file mode 100644
index 0000000..9e5f1aa
--- /dev/null
+++ b/drivers/input/mouse/elantech.h
@@ -0,0 +1,154 @@
+/*
+ * Elantech Touchpad driver (v6)
+ *
+ * Copyright (C) 2007-2009 Arjan Opmeer <arjan@opmeer.net>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ *
+ * Trademarks are the property of their respective owners.
+ */
+
+#ifndef _ELANTECH_H
+#define _ELANTECH_H
+
+/*
+ * Command values for Synaptics style queries
+ */
+#define ETP_FW_ID_QUERY 0x00
+#define ETP_FW_VERSION_QUERY 0x01
+#define ETP_CAPABILITIES_QUERY 0x02
+#define ETP_SAMPLE_QUERY 0x03
+
+/*
+ * Command values for register reading or writing
+ */
+#define ETP_REGISTER_READ 0x10
+#define ETP_REGISTER_WRITE 0x11
+#define ETP_REGISTER_READWRITE 0x00
+
+/*
+ * Hardware version 2 custom PS/2 command value
+ */
+#define ETP_PS2_CUSTOM_COMMAND 0xf8
+
+/*
+ * Times to retry a ps2_command and millisecond delay between tries
+ */
+#define ETP_PS2_COMMAND_TRIES 3
+#define ETP_PS2_COMMAND_DELAY 500
+
+/*
+ * Times to try to read back a register and millisecond delay between tries
+ */
+#define ETP_READ_BACK_TRIES 5
+#define ETP_READ_BACK_DELAY 2000
+
+/*
+ * Register bitmasks for hardware version 1
+ */
+#define ETP_R10_ABSOLUTE_MODE 0x04
+#define ETP_R11_4_BYTE_MODE 0x02
+
+/*
+ * Capability bitmasks
+ */
+#define ETP_CAP_HAS_ROCKER 0x04
+
+/*
+ * One hard to find application note states that X axis range is 0 to 576
+ * and Y axis range is 0 to 384 for harware version 1.
+ * Edge fuzz might be necessary because of bezel around the touchpad
+ */
+#define ETP_EDGE_FUZZ_V1 32
+
+#define ETP_XMIN_V1 ( 0 + ETP_EDGE_FUZZ_V1)
+#define ETP_XMAX_V1 (576 - ETP_EDGE_FUZZ_V1)
+#define ETP_YMIN_V1 ( 0 + ETP_EDGE_FUZZ_V1)
+#define ETP_YMAX_V1 (384 - ETP_EDGE_FUZZ_V1)
+
+/*
+ * The resolution for older v2 hardware doubled.
+ * (newer v2's firmware provides command so we can query)
+ */
+#define ETP_XMIN_V2 0
+#define ETP_XMAX_V2 1152
+#define ETP_YMIN_V2 0
+#define ETP_YMAX_V2 768
+
+#define ETP_PMIN_V2 0
+#define ETP_PMAX_V2 255
+#define ETP_WMIN_V2 0
+#define ETP_WMAX_V2 15
+
+/*
+ * v3 hardware has 2 kinds of packet types,
+ * v4 hardware has 3.
+ */
+#define PACKET_UNKNOWN 0x01
+#define PACKET_DEBOUNCE 0x02
+#define PACKET_V3_HEAD 0x03
+#define PACKET_V3_TAIL 0x04
+#define PACKET_V4_HEAD 0x05
+#define PACKET_V4_MOTION 0x06
+#define PACKET_V4_STATUS 0x07
+
+/*
+ * track up to 5 fingers for v4 hardware
+ */
+#define ETP_MAX_FINGERS 5
+
+/*
+ * weight value for v4 hardware
+ */
+#define ETP_WEIGHT_VALUE 5
+
+/*
+ * The base position for one finger, v4 hardware
+ */
+struct finger_pos {
+ unsigned int x;
+ unsigned int y;
+};
+
+struct elantech_data {
+ unsigned char reg_07;
+ unsigned char reg_10;
+ unsigned char reg_11;
+ unsigned char reg_20;
+ unsigned char reg_21;
+ unsigned char reg_22;
+ unsigned char reg_23;
+ unsigned char reg_24;
+ unsigned char reg_25;
+ unsigned char reg_26;
+ unsigned char debug;
+ unsigned char capabilities[3];
+ bool paritycheck;
+ bool jumpy_cursor;
+ bool reports_pressure;
+ unsigned char hw_version;
+ unsigned int fw_version;
+ unsigned int single_finger_reports;
+ unsigned int y_max;
+ unsigned int width;
+ struct finger_pos mt[ETP_MAX_FINGERS];
+ unsigned char parity[256];
+};
+
+#ifdef CONFIG_MOUSE_PS2_ELANTECH
+int elantech_detect(struct psmouse *psmouse, bool set_properties);
+int elantech_init(struct psmouse *psmouse);
+#else
+static inline int elantech_detect(struct psmouse *psmouse, bool set_properties)
+{
+ return -ENOSYS;
+}
+static inline int elantech_init(struct psmouse *psmouse)
+{
+ return -ENOSYS;
+}
+#endif /* CONFIG_MOUSE_PS2_ELANTECH */
+
+#endif
diff --git a/drivers/input/mouse/gpio_mouse.c b/drivers/input/mouse/gpio_mouse.c
new file mode 100644
index 0000000..58902fb
--- /dev/null
+++ b/drivers/input/mouse/gpio_mouse.c
@@ -0,0 +1,198 @@
+/*
+ * Driver for simulating a mouse on GPIO lines.
+ *
+ * Copyright (C) 2007 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/input-polldev.h>
+#include <linux/gpio_mouse.h>
+
+#include <asm/gpio.h>
+
+/*
+ * Timer function which is run every scan_ms ms when the device is opened.
+ * The dev input variable is set to the the input_dev pointer.
+ */
+static void gpio_mouse_scan(struct input_polled_dev *dev)
+{
+ struct gpio_mouse_platform_data *gpio = dev->private;
+ struct input_dev *input = dev->input;
+ int x, y;
+
+ if (gpio->bleft >= 0)
+ input_report_key(input, BTN_LEFT,
+ gpio_get_value(gpio->bleft) ^ gpio->polarity);
+ if (gpio->bmiddle >= 0)
+ input_report_key(input, BTN_MIDDLE,
+ gpio_get_value(gpio->bmiddle) ^ gpio->polarity);
+ if (gpio->bright >= 0)
+ input_report_key(input, BTN_RIGHT,
+ gpio_get_value(gpio->bright) ^ gpio->polarity);
+
+ x = (gpio_get_value(gpio->right) ^ gpio->polarity)
+ - (gpio_get_value(gpio->left) ^ gpio->polarity);
+ y = (gpio_get_value(gpio->down) ^ gpio->polarity)
+ - (gpio_get_value(gpio->up) ^ gpio->polarity);
+
+ input_report_rel(input, REL_X, x);
+ input_report_rel(input, REL_Y, y);
+ input_sync(input);
+}
+
+static int __devinit gpio_mouse_probe(struct platform_device *pdev)
+{
+ struct gpio_mouse_platform_data *pdata = pdev->dev.platform_data;
+ struct input_polled_dev *input_poll;
+ struct input_dev *input;
+ int pin, i;
+ int error;
+
+ if (!pdata) {
+ dev_err(&pdev->dev, "no platform data\n");
+ error = -ENXIO;
+ goto out;
+ }
+
+ if (pdata->scan_ms < 0) {
+ dev_err(&pdev->dev, "invalid scan time\n");
+ error = -EINVAL;
+ goto out;
+ }
+
+ for (i = 0; i < GPIO_MOUSE_PIN_MAX; i++) {
+ pin = pdata->pins[i];
+
+ if (pin < 0) {
+
+ if (i <= GPIO_MOUSE_PIN_RIGHT) {
+ /* Mouse direction is required. */
+ dev_err(&pdev->dev,
+ "missing GPIO for directions\n");
+ error = -EINVAL;
+ goto out_free_gpios;
+ }
+
+ if (i == GPIO_MOUSE_PIN_BLEFT)
+ dev_dbg(&pdev->dev, "no left button defined\n");
+
+ } else {
+ error = gpio_request(pin, "gpio_mouse");
+ if (error) {
+ dev_err(&pdev->dev, "fail %d pin (%d idx)\n",
+ pin, i);
+ goto out_free_gpios;
+ }
+
+ gpio_direction_input(pin);
+ }
+ }
+
+ input_poll = input_allocate_polled_device();
+ if (!input_poll) {
+ dev_err(&pdev->dev, "not enough memory for input device\n");
+ error = -ENOMEM;
+ goto out_free_gpios;
+ }
+
+ platform_set_drvdata(pdev, input_poll);
+
+ /* set input-polldev handlers */
+ input_poll->private = pdata;
+ input_poll->poll = gpio_mouse_scan;
+ input_poll->poll_interval = pdata->scan_ms;
+
+ input = input_poll->input;
+ input->name = pdev->name;
+ input->id.bustype = BUS_HOST;
+ input->dev.parent = &pdev->dev;
+
+ input_set_capability(input, EV_REL, REL_X);
+ input_set_capability(input, EV_REL, REL_Y);
+ if (pdata->bleft >= 0)
+ input_set_capability(input, EV_KEY, BTN_LEFT);
+ if (pdata->bmiddle >= 0)
+ input_set_capability(input, EV_KEY, BTN_MIDDLE);
+ if (pdata->bright >= 0)
+ input_set_capability(input, EV_KEY, BTN_RIGHT);
+
+ error = input_register_polled_device(input_poll);
+ if (error) {
+ dev_err(&pdev->dev, "could not register input device\n");
+ goto out_free_polldev;
+ }
+
+ dev_dbg(&pdev->dev, "%d ms scan time, buttons: %s%s%s\n",
+ pdata->scan_ms,
+ pdata->bleft < 0 ? "" : "left ",
+ pdata->bmiddle < 0 ? "" : "middle ",
+ pdata->bright < 0 ? "" : "right");
+
+ return 0;
+
+ out_free_polldev:
+ input_free_polled_device(input_poll);
+ platform_set_drvdata(pdev, NULL);
+
+ out_free_gpios:
+ while (--i >= 0) {
+ pin = pdata->pins[i];
+ if (pin)
+ gpio_free(pin);
+ }
+ out:
+ return error;
+}
+
+static int __devexit gpio_mouse_remove(struct platform_device *pdev)
+{
+ struct input_polled_dev *input = platform_get_drvdata(pdev);
+ struct gpio_mouse_platform_data *pdata = input->private;
+ int pin, i;
+
+ input_unregister_polled_device(input);
+ input_free_polled_device(input);
+
+ for (i = 0; i < GPIO_MOUSE_PIN_MAX; i++) {
+ pin = pdata->pins[i];
+ if (pin >= 0)
+ gpio_free(pin);
+ }
+
+ platform_set_drvdata(pdev, NULL);
+
+ return 0;
+}
+
+static struct platform_driver gpio_mouse_device_driver = {
+ .probe = gpio_mouse_probe,
+ .remove = __devexit_p(gpio_mouse_remove),
+ .driver = {
+ .name = "gpio_mouse",
+ .owner = THIS_MODULE,
+ }
+};
+
+static int __init gpio_mouse_init(void)
+{
+ return platform_driver_register(&gpio_mouse_device_driver);
+}
+module_init(gpio_mouse_init);
+
+static void __exit gpio_mouse_exit(void)
+{
+ platform_driver_unregister(&gpio_mouse_device_driver);
+}
+module_exit(gpio_mouse_exit);
+
+MODULE_AUTHOR("Hans-Christian Egtvedt <egtvedt@samfundet.no>");
+MODULE_DESCRIPTION("GPIO mouse driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:gpio_mouse"); /* work with hotplug and coldplug */
+
diff --git a/drivers/input/mouse/hgpk.c b/drivers/input/mouse/hgpk.c
new file mode 100644
index 0000000..0470dd4
--- /dev/null
+++ b/drivers/input/mouse/hgpk.c
@@ -0,0 +1,1069 @@
+/*
+ * OLPC HGPK (XO-1) touchpad PS/2 mouse driver
+ *
+ * Copyright (c) 2006-2008 One Laptop Per Child
+ * Authors:
+ * Zephaniah E. Hull
+ * Andres Salomon <dilinger@debian.org>
+ *
+ * This driver is partly based on the ALPS driver, which is:
+ *
+ * Copyright (c) 2003 Neil Brown <neilb@cse.unsw.edu.au>
+ * Copyright (c) 2003-2005 Peter Osterlund <petero2@telia.com>
+ * Copyright (c) 2004 Dmitry Torokhov <dtor@mail.ru>
+ * Copyright (c) 2005 Vojtech Pavlik <vojtech@suse.cz>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+/*
+ * The spec from ALPS is available from
+ * <http://wiki.laptop.org/go/Touch_Pad/Tablet>. It refers to this
+ * device as HGPK (Hybrid GS, PT, and Keymatrix).
+ *
+ * The earliest versions of the device had simultaneous reporting; that
+ * was removed. After that, the device used the Advanced Mode GS/PT streaming
+ * stuff. That turned out to be too buggy to support, so we've finally
+ * switched to Mouse Mode (which utilizes only the center 1/3 of the touchpad).
+ */
+
+#define DEBUG
+#include <linux/slab.h>
+#include <linux/input.h>
+#include <linux/module.h>
+#include <linux/serio.h>
+#include <linux/libps2.h>
+#include <linux/delay.h>
+#include <asm/olpc.h>
+
+#include "psmouse.h"
+#include "hgpk.h"
+
+#define ILLEGAL_XY 999999
+
+static bool tpdebug;
+module_param(tpdebug, bool, 0644);
+MODULE_PARM_DESC(tpdebug, "enable debugging, dumping packets to KERN_DEBUG.");
+
+static int recalib_delta = 100;
+module_param(recalib_delta, int, 0644);
+MODULE_PARM_DESC(recalib_delta,
+ "packets containing a delta this large will be discarded, and a "
+ "recalibration may be scheduled.");
+
+static int jumpy_delay = 20;
+module_param(jumpy_delay, int, 0644);
+MODULE_PARM_DESC(jumpy_delay,
+ "delay (ms) before recal after jumpiness detected");
+
+static int spew_delay = 1;
+module_param(spew_delay, int, 0644);
+MODULE_PARM_DESC(spew_delay,
+ "delay (ms) before recal after packet spew detected");
+
+static int recal_guard_time;
+module_param(recal_guard_time, int, 0644);
+MODULE_PARM_DESC(recal_guard_time,
+ "interval (ms) during which recal will be restarted if packet received");
+
+static int post_interrupt_delay = 40;
+module_param(post_interrupt_delay, int, 0644);
+MODULE_PARM_DESC(post_interrupt_delay,
+ "delay (ms) before recal after recal interrupt detected");
+
+static bool autorecal = true;
+module_param(autorecal, bool, 0644);
+MODULE_PARM_DESC(autorecal, "enable recalibration in the driver");
+
+static char hgpk_mode_name[16];
+module_param_string(hgpk_mode, hgpk_mode_name, sizeof(hgpk_mode_name), 0644);
+MODULE_PARM_DESC(hgpk_mode,
+ "default hgpk mode: mouse, glidesensor or pentablet");
+
+static int hgpk_default_mode = HGPK_MODE_MOUSE;
+
+static const char * const hgpk_mode_names[] = {
+ [HGPK_MODE_MOUSE] = "Mouse",
+ [HGPK_MODE_GLIDESENSOR] = "GlideSensor",
+ [HGPK_MODE_PENTABLET] = "PenTablet",
+};
+
+static int hgpk_mode_from_name(const char *buf, int len)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(hgpk_mode_names); i++) {
+ const char *name = hgpk_mode_names[i];
+ if (strlen(name) == len && !strncasecmp(name, buf, len))
+ return i;
+ }
+
+ return HGPK_MODE_INVALID;
+}
+
+/*
+ * see if new value is within 20% of half of old value
+ */
+static int approx_half(int curr, int prev)
+{
+ int belowhalf, abovehalf;
+
+ if (curr < 5 || prev < 5)
+ return 0;
+
+ belowhalf = (prev * 8) / 20;
+ abovehalf = (prev * 12) / 20;
+
+ return belowhalf < curr && curr <= abovehalf;
+}
+
+/*
+ * Throw out oddly large delta packets, and any that immediately follow whose
+ * values are each approximately half of the previous. It seems that the ALPS
+ * firmware emits errant packets, and they get averaged out slowly.
+ */
+static int hgpk_discard_decay_hack(struct psmouse *psmouse, int x, int y)
+{
+ struct hgpk_data *priv = psmouse->private;
+ int avx, avy;
+ bool do_recal = false;
+
+ avx = abs(x);
+ avy = abs(y);
+
+ /* discard if too big, or half that but > 4 times the prev delta */
+ if (avx > recalib_delta ||
+ (avx > recalib_delta / 2 && ((avx / 4) > priv->xlast))) {
+ psmouse_warn(psmouse, "detected %dpx jump in x\n", x);
+ priv->xbigj = avx;
+ } else if (approx_half(avx, priv->xbigj)) {
+ psmouse_warn(psmouse, "detected secondary %dpx jump in x\n", x);
+ priv->xbigj = avx;
+ priv->xsaw_secondary++;
+ } else {
+ if (priv->xbigj && priv->xsaw_secondary > 1)
+ do_recal = true;
+ priv->xbigj = 0;
+ priv->xsaw_secondary = 0;
+ }
+
+ if (avy > recalib_delta ||
+ (avy > recalib_delta / 2 && ((avy / 4) > priv->ylast))) {
+ psmouse_warn(psmouse, "detected %dpx jump in y\n", y);
+ priv->ybigj = avy;
+ } else if (approx_half(avy, priv->ybigj)) {
+ psmouse_warn(psmouse, "detected secondary %dpx jump in y\n", y);
+ priv->ybigj = avy;
+ priv->ysaw_secondary++;
+ } else {
+ if (priv->ybigj && priv->ysaw_secondary > 1)
+ do_recal = true;
+ priv->ybigj = 0;
+ priv->ysaw_secondary = 0;
+ }
+
+ priv->xlast = avx;
+ priv->ylast = avy;
+
+ if (do_recal && jumpy_delay) {
+ psmouse_warn(psmouse, "scheduling recalibration\n");
+ psmouse_queue_work(psmouse, &priv->recalib_wq,
+ msecs_to_jiffies(jumpy_delay));
+ }
+
+ return priv->xbigj || priv->ybigj;
+}
+
+static void hgpk_reset_spew_detection(struct hgpk_data *priv)
+{
+ priv->spew_count = 0;
+ priv->dupe_count = 0;
+ priv->x_tally = 0;
+ priv->y_tally = 0;
+ priv->spew_flag = NO_SPEW;
+}
+
+static void hgpk_reset_hack_state(struct psmouse *psmouse)
+{
+ struct hgpk_data *priv = psmouse->private;
+
+ priv->abs_x = priv->abs_y = -1;
+ priv->xlast = priv->ylast = ILLEGAL_XY;
+ priv->xbigj = priv->ybigj = 0;
+ priv->xsaw_secondary = priv->ysaw_secondary = 0;
+ hgpk_reset_spew_detection(priv);
+}
+
+/*
+ * We have no idea why this particular hardware bug occurs. The touchpad
+ * will randomly start spewing packets without anything touching the
+ * pad. This wouldn't necessarily be bad, but it's indicative of a
+ * severely miscalibrated pad; attempting to use the touchpad while it's
+ * spewing means the cursor will jump all over the place, and act "drunk".
+ *
+ * The packets that are spewed tend to all have deltas between -2 and 2, and
+ * the cursor will move around without really going very far. It will
+ * tend to end up in the same location; if we tally up the changes over
+ * 100 packets, we end up w/ a final delta of close to 0. This happens
+ * pretty regularly when the touchpad is spewing, and is pretty hard to
+ * manually trigger (at least for *my* fingers). So, it makes a perfect
+ * scheme for detecting spews.
+ */
+static void hgpk_spewing_hack(struct psmouse *psmouse,
+ int l, int r, int x, int y)
+{
+ struct hgpk_data *priv = psmouse->private;
+
+ /* ignore button press packets; many in a row could trigger
+ * a false-positive! */
+ if (l || r)
+ return;
+
+ /* don't track spew if the workaround feature has been turned off */
+ if (!spew_delay)
+ return;
+
+ if (abs(x) > 3 || abs(y) > 3) {
+ /* no spew, or spew ended */
+ hgpk_reset_spew_detection(priv);
+ return;
+ }
+
+ /* Keep a tally of the overall delta to the cursor position caused by
+ * the spew */
+ priv->x_tally += x;
+ priv->y_tally += y;
+
+ switch (priv->spew_flag) {
+ case NO_SPEW:
+ /* we're not spewing, but this packet might be the start */
+ priv->spew_flag = MAYBE_SPEWING;
+
+ /* fall-through */
+
+ case MAYBE_SPEWING:
+ priv->spew_count++;
+
+ if (priv->spew_count < SPEW_WATCH_COUNT)
+ break;
+
+ /* excessive spew detected, request recalibration */
+ priv->spew_flag = SPEW_DETECTED;
+
+ /* fall-through */
+
+ case SPEW_DETECTED:
+ /* only recalibrate when the overall delta to the cursor
+ * is really small. if the spew is causing significant cursor
+ * movement, it is probably a case of the user moving the
+ * cursor very slowly across the screen. */
+ if (abs(priv->x_tally) < 3 && abs(priv->y_tally) < 3) {
+ psmouse_warn(psmouse, "packet spew detected (%d,%d)\n",
+ priv->x_tally, priv->y_tally);
+ priv->spew_flag = RECALIBRATING;
+ psmouse_queue_work(psmouse, &priv->recalib_wq,
+ msecs_to_jiffies(spew_delay));
+ }
+
+ break;
+ case RECALIBRATING:
+ /* we already detected a spew and requested a recalibration,
+ * just wait for the queue to kick into action. */
+ break;
+ }
+}
+
+/*
+ * HGPK Mouse Mode format (standard mouse format, sans middle button)
+ *
+ * byte 0: y-over x-over y-neg x-neg 1 0 swr swl
+ * byte 1: x7 x6 x5 x4 x3 x2 x1 x0
+ * byte 2: y7 y6 y5 y4 y3 y2 y1 y0
+ *
+ * swr/swl are the left/right buttons.
+ * x-neg/y-neg are the x and y delta negative bits
+ * x-over/y-over are the x and y overflow bits
+ *
+ * ---
+ *
+ * HGPK Advanced Mode - single-mode format
+ *
+ * byte 0(PT): 1 1 0 0 1 1 1 1
+ * byte 0(GS): 1 1 1 1 1 1 1 1
+ * byte 1: 0 x6 x5 x4 x3 x2 x1 x0
+ * byte 2(PT): 0 0 x9 x8 x7 ? pt-dsw 0
+ * byte 2(GS): 0 x10 x9 x8 x7 ? gs-dsw pt-dsw
+ * byte 3: 0 y9 y8 y7 1 0 swr swl
+ * byte 4: 0 y6 y5 y4 y3 y2 y1 y0
+ * byte 5: 0 z6 z5 z4 z3 z2 z1 z0
+ *
+ * ?'s are not defined in the protocol spec, may vary between models.
+ *
+ * swr/swl are the left/right buttons.
+ *
+ * pt-dsw/gs-dsw indicate that the pt/gs sensor is detecting a
+ * pen/finger
+ */
+static bool hgpk_is_byte_valid(struct psmouse *psmouse, unsigned char *packet)
+{
+ struct hgpk_data *priv = psmouse->private;
+ int pktcnt = psmouse->pktcnt;
+ bool valid;
+
+ switch (priv->mode) {
+ case HGPK_MODE_MOUSE:
+ valid = (packet[0] & 0x0C) == 0x08;
+ break;
+
+ case HGPK_MODE_GLIDESENSOR:
+ valid = pktcnt == 1 ?
+ packet[0] == HGPK_GS : !(packet[pktcnt - 1] & 0x80);
+ break;
+
+ case HGPK_MODE_PENTABLET:
+ valid = pktcnt == 1 ?
+ packet[0] == HGPK_PT : !(packet[pktcnt - 1] & 0x80);
+ break;
+
+ default:
+ valid = false;
+ break;
+ }
+
+ if (!valid)
+ psmouse_dbg(psmouse,
+ "bad data, mode %d (%d) %02x %02x %02x %02x %02x %02x\n",
+ priv->mode, pktcnt,
+ psmouse->packet[0], psmouse->packet[1],
+ psmouse->packet[2], psmouse->packet[3],
+ psmouse->packet[4], psmouse->packet[5]);
+
+ return valid;
+}
+
+static void hgpk_process_advanced_packet(struct psmouse *psmouse)
+{
+ struct hgpk_data *priv = psmouse->private;
+ struct input_dev *idev = psmouse->dev;
+ unsigned char *packet = psmouse->packet;
+ int down = !!(packet[2] & 2);
+ int left = !!(packet[3] & 1);
+ int right = !!(packet[3] & 2);
+ int x = packet[1] | ((packet[2] & 0x78) << 4);
+ int y = packet[4] | ((packet[3] & 0x70) << 3);
+
+ if (priv->mode == HGPK_MODE_GLIDESENSOR) {
+ int pt_down = !!(packet[2] & 1);
+ int finger_down = !!(packet[2] & 2);
+ int z = packet[5];
+
+ input_report_abs(idev, ABS_PRESSURE, z);
+ if (tpdebug)
+ psmouse_dbg(psmouse, "pd=%d fd=%d z=%d",
+ pt_down, finger_down, z);
+ } else {
+ /*
+ * PenTablet mode does not report pressure, so we don't
+ * report it here
+ */
+ if (tpdebug)
+ psmouse_dbg(psmouse, "pd=%d ", down);
+ }
+
+ if (tpdebug)
+ psmouse_dbg(psmouse, "l=%d r=%d x=%d y=%d\n",
+ left, right, x, y);
+
+ input_report_key(idev, BTN_TOUCH, down);
+ input_report_key(idev, BTN_LEFT, left);
+ input_report_key(idev, BTN_RIGHT, right);
+
+ /*
+ * If this packet says that the finger was removed, reset our position
+ * tracking so that we don't erroneously detect a jump on next press.
+ */
+ if (!down) {
+ hgpk_reset_hack_state(psmouse);
+ goto done;
+ }
+
+ /*
+ * Weed out duplicate packets (we get quite a few, and they mess up
+ * our jump detection)
+ */
+ if (x == priv->abs_x && y == priv->abs_y) {
+ if (++priv->dupe_count > SPEW_WATCH_COUNT) {
+ if (tpdebug)
+ psmouse_dbg(psmouse, "hard spew detected\n");
+ priv->spew_flag = RECALIBRATING;
+ psmouse_queue_work(psmouse, &priv->recalib_wq,
+ msecs_to_jiffies(spew_delay));
+ }
+ goto done;
+ }
+
+ /* not a duplicate, continue with position reporting */
+ priv->dupe_count = 0;
+
+ /* Don't apply hacks in PT mode, it seems reliable */
+ if (priv->mode != HGPK_MODE_PENTABLET && priv->abs_x != -1) {
+ int x_diff = priv->abs_x - x;
+ int y_diff = priv->abs_y - y;
+ if (hgpk_discard_decay_hack(psmouse, x_diff, y_diff)) {
+ if (tpdebug)
+ psmouse_dbg(psmouse, "discarding\n");
+ goto done;
+ }
+ hgpk_spewing_hack(psmouse, left, right, x_diff, y_diff);
+ }
+
+ input_report_abs(idev, ABS_X, x);
+ input_report_abs(idev, ABS_Y, y);
+ priv->abs_x = x;
+ priv->abs_y = y;
+
+done:
+ input_sync(idev);
+}
+
+static void hgpk_process_simple_packet(struct psmouse *psmouse)
+{
+ struct input_dev *dev = psmouse->dev;
+ unsigned char *packet = psmouse->packet;
+ int left = packet[0] & 1;
+ int right = (packet[0] >> 1) & 1;
+ int x = packet[1] - ((packet[0] << 4) & 0x100);
+ int y = ((packet[0] << 3) & 0x100) - packet[2];
+
+ if (packet[0] & 0xc0)
+ psmouse_dbg(psmouse,
+ "overflow -- 0x%02x 0x%02x 0x%02x\n",
+ packet[0], packet[1], packet[2]);
+
+ if (hgpk_discard_decay_hack(psmouse, x, y)) {
+ if (tpdebug)
+ psmouse_dbg(psmouse, "discarding\n");
+ return;
+ }
+
+ hgpk_spewing_hack(psmouse, left, right, x, y);
+
+ if (tpdebug)
+ psmouse_dbg(psmouse, "l=%d r=%d x=%d y=%d\n",
+ left, right, x, y);
+
+ input_report_key(dev, BTN_LEFT, left);
+ input_report_key(dev, BTN_RIGHT, right);
+
+ input_report_rel(dev, REL_X, x);
+ input_report_rel(dev, REL_Y, y);
+
+ input_sync(dev);
+}
+
+static psmouse_ret_t hgpk_process_byte(struct psmouse *psmouse)
+{
+ struct hgpk_data *priv = psmouse->private;
+
+ if (!hgpk_is_byte_valid(psmouse, psmouse->packet))
+ return PSMOUSE_BAD_DATA;
+
+ if (psmouse->pktcnt >= psmouse->pktsize) {
+ if (priv->mode == HGPK_MODE_MOUSE)
+ hgpk_process_simple_packet(psmouse);
+ else
+ hgpk_process_advanced_packet(psmouse);
+ return PSMOUSE_FULL_PACKET;
+ }
+
+ if (priv->recalib_window) {
+ if (time_before(jiffies, priv->recalib_window)) {
+ /*
+ * ugh, got a packet inside our recalibration
+ * window, schedule another recalibration.
+ */
+ psmouse_dbg(psmouse,
+ "packet inside calibration window, queueing another recalibration\n");
+ psmouse_queue_work(psmouse, &priv->recalib_wq,
+ msecs_to_jiffies(post_interrupt_delay));
+ }
+ priv->recalib_window = 0;
+ }
+
+ return PSMOUSE_GOOD_DATA;
+}
+
+static int hgpk_select_mode(struct psmouse *psmouse)
+{
+ struct ps2dev *ps2dev = &psmouse->ps2dev;
+ struct hgpk_data *priv = psmouse->private;
+ int i;
+ int cmd;
+
+ /*
+ * 4 disables to enable advanced mode
+ * then 3 0xf2 bytes as the preamble for GS/PT selection
+ */
+ const int advanced_init[] = {
+ PSMOUSE_CMD_DISABLE, PSMOUSE_CMD_DISABLE,
+ PSMOUSE_CMD_DISABLE, PSMOUSE_CMD_DISABLE,
+ 0xf2, 0xf2, 0xf2,
+ };
+
+ switch (priv->mode) {
+ case HGPK_MODE_MOUSE:
+ psmouse->pktsize = 3;
+ break;
+
+ case HGPK_MODE_GLIDESENSOR:
+ case HGPK_MODE_PENTABLET:
+ psmouse->pktsize = 6;
+
+ /* Switch to 'Advanced mode.', four disables in a row. */
+ for (i = 0; i < ARRAY_SIZE(advanced_init); i++)
+ if (ps2_command(ps2dev, NULL, advanced_init[i]))
+ return -EIO;
+
+ /* select between GlideSensor (mouse) or PenTablet */
+ cmd = priv->mode == HGPK_MODE_GLIDESENSOR ?
+ PSMOUSE_CMD_SETSCALE11 : PSMOUSE_CMD_SETSCALE21;
+
+ if (ps2_command(ps2dev, NULL, cmd))
+ return -EIO;
+ break;
+
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static void hgpk_setup_input_device(struct input_dev *input,
+ struct input_dev *old_input,
+ enum hgpk_mode mode)
+{
+ if (old_input) {
+ input->name = old_input->name;
+ input->phys = old_input->phys;
+ input->id = old_input->id;
+ input->dev.parent = old_input->dev.parent;
+ }
+
+ memset(input->evbit, 0, sizeof(input->evbit));
+ memset(input->relbit, 0, sizeof(input->relbit));
+ memset(input->keybit, 0, sizeof(input->keybit));
+
+ /* All modes report left and right buttons */
+ __set_bit(EV_KEY, input->evbit);
+ __set_bit(BTN_LEFT, input->keybit);
+ __set_bit(BTN_RIGHT, input->keybit);
+
+ switch (mode) {
+ case HGPK_MODE_MOUSE:
+ __set_bit(EV_REL, input->evbit);
+ __set_bit(REL_X, input->relbit);
+ __set_bit(REL_Y, input->relbit);
+ break;
+
+ case HGPK_MODE_GLIDESENSOR:
+ __set_bit(BTN_TOUCH, input->keybit);
+ __set_bit(BTN_TOOL_FINGER, input->keybit);
+
+ __set_bit(EV_ABS, input->evbit);
+
+ /* GlideSensor has pressure sensor, PenTablet does not */
+ input_set_abs_params(input, ABS_PRESSURE, 0, 15, 0, 0);
+
+ /* From device specs */
+ input_set_abs_params(input, ABS_X, 0, 399, 0, 0);
+ input_set_abs_params(input, ABS_Y, 0, 290, 0, 0);
+
+ /* Calculated by hand based on usable size (52mm x 38mm) */
+ input_abs_set_res(input, ABS_X, 8);
+ input_abs_set_res(input, ABS_Y, 8);
+ break;
+
+ case HGPK_MODE_PENTABLET:
+ __set_bit(BTN_TOUCH, input->keybit);
+ __set_bit(BTN_TOOL_FINGER, input->keybit);
+
+ __set_bit(EV_ABS, input->evbit);
+
+ /* From device specs */
+ input_set_abs_params(input, ABS_X, 0, 999, 0, 0);
+ input_set_abs_params(input, ABS_Y, 5, 239, 0, 0);
+
+ /* Calculated by hand based on usable size (156mm x 38mm) */
+ input_abs_set_res(input, ABS_X, 6);
+ input_abs_set_res(input, ABS_Y, 8);
+ break;
+
+ default:
+ BUG();
+ }
+}
+
+static int hgpk_reset_device(struct psmouse *psmouse, bool recalibrate)
+{
+ int err;
+
+ psmouse_reset(psmouse);
+
+ if (recalibrate) {
+ struct ps2dev *ps2dev = &psmouse->ps2dev;
+
+ /* send the recalibrate request */
+ if (ps2_command(ps2dev, NULL, 0xf5) ||
+ ps2_command(ps2dev, NULL, 0xf5) ||
+ ps2_command(ps2dev, NULL, 0xe6) ||
+ ps2_command(ps2dev, NULL, 0xf5)) {
+ return -1;
+ }
+
+ /* according to ALPS, 150mS is required for recalibration */
+ msleep(150);
+ }
+
+ err = hgpk_select_mode(psmouse);
+ if (err) {
+ psmouse_err(psmouse, "failed to select mode\n");
+ return err;
+ }
+
+ hgpk_reset_hack_state(psmouse);
+
+ return 0;
+}
+
+static int hgpk_force_recalibrate(struct psmouse *psmouse)
+{
+ struct ps2dev *ps2dev = &psmouse->ps2dev;
+ struct hgpk_data *priv = psmouse->private;
+ int err;
+
+ /* C-series touchpads added the recalibrate command */
+ if (psmouse->model < HGPK_MODEL_C)
+ return 0;
+
+ if (!autorecal) {
+ psmouse_dbg(psmouse, "recalibration disabled, ignoring\n");
+ return 0;
+ }
+
+ psmouse_dbg(psmouse, "recalibrating touchpad..\n");
+
+ /* we don't want to race with the irq handler, nor with resyncs */
+ psmouse_set_state(psmouse, PSMOUSE_INITIALIZING);
+
+ /* start by resetting the device */
+ err = hgpk_reset_device(psmouse, true);
+ if (err)
+ return err;
+
+ /*
+ * XXX: If a finger is down during this delay, recalibration will
+ * detect capacitance incorrectly. This is a hardware bug, and
+ * we don't have a good way to deal with it. The 2s window stuff
+ * (below) is our best option for now.
+ */
+
+ if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE))
+ return -1;
+
+ psmouse_set_state(psmouse, PSMOUSE_ACTIVATED);
+
+ if (tpdebug)
+ psmouse_dbg(psmouse, "touchpad reactivated\n");
+
+ /*
+ * If we get packets right away after recalibrating, it's likely
+ * that a finger was on the touchpad. If so, it's probably
+ * miscalibrated, so we optionally schedule another.
+ */
+ if (recal_guard_time)
+ priv->recalib_window = jiffies +
+ msecs_to_jiffies(recal_guard_time);
+
+ return 0;
+}
+
+/*
+ * This puts the touchpad in a power saving mode; according to ALPS, current
+ * consumption goes down to 50uA after running this. To turn power back on,
+ * we drive MS-DAT low. Measuring with a 1mA resolution ammeter says that
+ * the current on the SUS_3.3V rail drops from 3mA or 4mA to 0 when we do this.
+ *
+ * We have no formal spec that details this operation -- the low-power
+ * sequence came from a long-lost email trail.
+ */
+static int hgpk_toggle_powersave(struct psmouse *psmouse, int enable)
+{
+ struct ps2dev *ps2dev = &psmouse->ps2dev;
+ int timeo;
+ int err;
+
+ /* Added on D-series touchpads */
+ if (psmouse->model < HGPK_MODEL_D)
+ return 0;
+
+ if (enable) {
+ psmouse_set_state(psmouse, PSMOUSE_INITIALIZING);
+
+ /*
+ * Sending a byte will drive MS-DAT low; this will wake up
+ * the controller. Once we get an ACK back from it, it
+ * means we can continue with the touchpad re-init. ALPS
+ * tells us that 1s should be long enough, so set that as
+ * the upper bound. (in practice, it takes about 3 loops.)
+ */
+ for (timeo = 20; timeo > 0; timeo--) {
+ if (!ps2_sendbyte(&psmouse->ps2dev,
+ PSMOUSE_CMD_DISABLE, 20))
+ break;
+ msleep(25);
+ }
+
+ err = hgpk_reset_device(psmouse, false);
+ if (err) {
+ psmouse_err(psmouse, "Failed to reset device!\n");
+ return err;
+ }
+
+ /* should be all set, enable the touchpad */
+ ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_ENABLE);
+ psmouse_set_state(psmouse, PSMOUSE_ACTIVATED);
+ psmouse_dbg(psmouse, "Touchpad powered up.\n");
+ } else {
+ psmouse_dbg(psmouse, "Powering off touchpad.\n");
+
+ if (ps2_command(ps2dev, NULL, 0xec) ||
+ ps2_command(ps2dev, NULL, 0xec) ||
+ ps2_command(ps2dev, NULL, 0xea)) {
+ return -1;
+ }
+
+ psmouse_set_state(psmouse, PSMOUSE_IGNORE);
+
+ /* probably won't see an ACK, the touchpad will be off */
+ ps2_sendbyte(&psmouse->ps2dev, 0xec, 20);
+ }
+
+ return 0;
+}
+
+static int hgpk_poll(struct psmouse *psmouse)
+{
+ /* We can't poll, so always return failure. */
+ return -1;
+}
+
+static int hgpk_reconnect(struct psmouse *psmouse)
+{
+ struct hgpk_data *priv = psmouse->private;
+
+ /*
+ * During suspend/resume the ps2 rails remain powered. We don't want
+ * to do a reset because it's flush data out of buffers; however,
+ * earlier prototypes (B1) had some brokenness that required a reset.
+ */
+ if (olpc_board_at_least(olpc_board(0xb2)))
+ if (psmouse->ps2dev.serio->dev.power.power_state.event !=
+ PM_EVENT_ON)
+ return 0;
+
+ priv->powered = 1;
+ return hgpk_reset_device(psmouse, false);
+}
+
+static ssize_t hgpk_show_powered(struct psmouse *psmouse, void *data, char *buf)
+{
+ struct hgpk_data *priv = psmouse->private;
+
+ return sprintf(buf, "%d\n", priv->powered);
+}
+
+static ssize_t hgpk_set_powered(struct psmouse *psmouse, void *data,
+ const char *buf, size_t count)
+{
+ struct hgpk_data *priv = psmouse->private;
+ unsigned long value;
+ int err;
+
+ err = strict_strtoul(buf, 10, &value);
+ if (err || value > 1)
+ return -EINVAL;
+
+ if (value != priv->powered) {
+ /*
+ * hgpk_toggle_power will deal w/ state so
+ * we're not racing w/ irq
+ */
+ err = hgpk_toggle_powersave(psmouse, value);
+ if (!err)
+ priv->powered = value;
+ }
+
+ return err ? err : count;
+}
+
+__PSMOUSE_DEFINE_ATTR(powered, S_IWUSR | S_IRUGO, NULL,
+ hgpk_show_powered, hgpk_set_powered, false);
+
+static ssize_t attr_show_mode(struct psmouse *psmouse, void *data, char *buf)
+{
+ struct hgpk_data *priv = psmouse->private;
+
+ return sprintf(buf, "%s\n", hgpk_mode_names[priv->mode]);
+}
+
+static ssize_t attr_set_mode(struct psmouse *psmouse, void *data,
+ const char *buf, size_t len)
+{
+ struct hgpk_data *priv = psmouse->private;
+ enum hgpk_mode old_mode = priv->mode;
+ enum hgpk_mode new_mode = hgpk_mode_from_name(buf, len);
+ struct input_dev *old_dev = psmouse->dev;
+ struct input_dev *new_dev;
+ int err;
+
+ if (new_mode == HGPK_MODE_INVALID)
+ return -EINVAL;
+
+ if (old_mode == new_mode)
+ return len;
+
+ new_dev = input_allocate_device();
+ if (!new_dev)
+ return -ENOMEM;
+
+ psmouse_set_state(psmouse, PSMOUSE_INITIALIZING);
+
+ /* Switch device into the new mode */
+ priv->mode = new_mode;
+ err = hgpk_reset_device(psmouse, false);
+ if (err)
+ goto err_try_restore;
+
+ hgpk_setup_input_device(new_dev, old_dev, new_mode);
+
+ psmouse_set_state(psmouse, PSMOUSE_CMD_MODE);
+
+ err = input_register_device(new_dev);
+ if (err)
+ goto err_try_restore;
+
+ psmouse->dev = new_dev;
+ input_unregister_device(old_dev);
+
+ return len;
+
+err_try_restore:
+ input_free_device(new_dev);
+ priv->mode = old_mode;
+ hgpk_reset_device(psmouse, false);
+
+ return err;
+}
+
+PSMOUSE_DEFINE_ATTR(hgpk_mode, S_IWUSR | S_IRUGO, NULL,
+ attr_show_mode, attr_set_mode);
+
+static ssize_t hgpk_trigger_recal_show(struct psmouse *psmouse,
+ void *data, char *buf)
+{
+ return -EINVAL;
+}
+
+static ssize_t hgpk_trigger_recal(struct psmouse *psmouse, void *data,
+ const char *buf, size_t count)
+{
+ struct hgpk_data *priv = psmouse->private;
+ unsigned long value;
+ int err;
+
+ err = strict_strtoul(buf, 10, &value);
+ if (err || value != 1)
+ return -EINVAL;
+
+ /*
+ * We queue work instead of doing recalibration right here
+ * to avoid adding locking to to hgpk_force_recalibrate()
+ * since workqueue provides serialization.
+ */
+ psmouse_queue_work(psmouse, &priv->recalib_wq, 0);
+ return count;
+}
+
+__PSMOUSE_DEFINE_ATTR(recalibrate, S_IWUSR | S_IRUGO, NULL,
+ hgpk_trigger_recal_show, hgpk_trigger_recal, false);
+
+static void hgpk_disconnect(struct psmouse *psmouse)
+{
+ struct hgpk_data *priv = psmouse->private;
+
+ device_remove_file(&psmouse->ps2dev.serio->dev,
+ &psmouse_attr_powered.dattr);
+ device_remove_file(&psmouse->ps2dev.serio->dev,
+ &psmouse_attr_hgpk_mode.dattr);
+
+ if (psmouse->model >= HGPK_MODEL_C)
+ device_remove_file(&psmouse->ps2dev.serio->dev,
+ &psmouse_attr_recalibrate.dattr);
+
+ psmouse_reset(psmouse);
+ kfree(priv);
+}
+
+static void hgpk_recalib_work(struct work_struct *work)
+{
+ struct delayed_work *w = to_delayed_work(work);
+ struct hgpk_data *priv = container_of(w, struct hgpk_data, recalib_wq);
+ struct psmouse *psmouse = priv->psmouse;
+
+ if (hgpk_force_recalibrate(psmouse))
+ psmouse_err(psmouse, "recalibration failed!\n");
+}
+
+static int hgpk_register(struct psmouse *psmouse)
+{
+ struct hgpk_data *priv = psmouse->private;
+ int err;
+
+ /* register handlers */
+ psmouse->protocol_handler = hgpk_process_byte;
+ psmouse->poll = hgpk_poll;
+ psmouse->disconnect = hgpk_disconnect;
+ psmouse->reconnect = hgpk_reconnect;
+
+ /* Disable the idle resync. */
+ psmouse->resync_time = 0;
+ /* Reset after a lot of bad bytes. */
+ psmouse->resetafter = 1024;
+
+ hgpk_setup_input_device(psmouse->dev, NULL, priv->mode);
+
+ err = device_create_file(&psmouse->ps2dev.serio->dev,
+ &psmouse_attr_powered.dattr);
+ if (err) {
+ psmouse_err(psmouse, "Failed creating 'powered' sysfs node\n");
+ return err;
+ }
+
+ err = device_create_file(&psmouse->ps2dev.serio->dev,
+ &psmouse_attr_hgpk_mode.dattr);
+ if (err) {
+ psmouse_err(psmouse,
+ "Failed creating 'hgpk_mode' sysfs node\n");
+ goto err_remove_powered;
+ }
+
+ /* C-series touchpads added the recalibrate command */
+ if (psmouse->model >= HGPK_MODEL_C) {
+ err = device_create_file(&psmouse->ps2dev.serio->dev,
+ &psmouse_attr_recalibrate.dattr);
+ if (err) {
+ psmouse_err(psmouse,
+ "Failed creating 'recalibrate' sysfs node\n");
+ goto err_remove_mode;
+ }
+ }
+
+ return 0;
+
+err_remove_mode:
+ device_remove_file(&psmouse->ps2dev.serio->dev,
+ &psmouse_attr_hgpk_mode.dattr);
+err_remove_powered:
+ device_remove_file(&psmouse->ps2dev.serio->dev,
+ &psmouse_attr_powered.dattr);
+ return err;
+}
+
+int hgpk_init(struct psmouse *psmouse)
+{
+ struct hgpk_data *priv;
+ int err;
+
+ priv = kzalloc(sizeof(struct hgpk_data), GFP_KERNEL);
+ if (!priv) {
+ err = -ENOMEM;
+ goto alloc_fail;
+ }
+
+ psmouse->private = priv;
+
+ priv->psmouse = psmouse;
+ priv->powered = true;
+ priv->mode = hgpk_default_mode;
+ INIT_DELAYED_WORK(&priv->recalib_wq, hgpk_recalib_work);
+
+ err = hgpk_reset_device(psmouse, false);
+ if (err)
+ goto init_fail;
+
+ err = hgpk_register(psmouse);
+ if (err)
+ goto init_fail;
+
+ return 0;
+
+init_fail:
+ kfree(priv);
+alloc_fail:
+ return err;
+}
+
+static enum hgpk_model_t hgpk_get_model(struct psmouse *psmouse)
+{
+ struct ps2dev *ps2dev = &psmouse->ps2dev;
+ unsigned char param[3];
+
+ /* E7, E7, E7, E9 gets us a 3 byte identifier */
+ if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE21) ||
+ ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE21) ||
+ ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE21) ||
+ ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO)) {
+ return -EIO;
+ }
+
+ psmouse_dbg(psmouse, "ID: %02x %02x %02x\n", param[0], param[1], param[2]);
+
+ /* HGPK signature: 0x67, 0x00, 0x<model> */
+ if (param[0] != 0x67 || param[1] != 0x00)
+ return -ENODEV;
+
+ psmouse_info(psmouse, "OLPC touchpad revision 0x%x\n", param[2]);
+
+ return param[2];
+}
+
+int hgpk_detect(struct psmouse *psmouse, bool set_properties)
+{
+ int version;
+
+ version = hgpk_get_model(psmouse);
+ if (version < 0)
+ return version;
+
+ if (set_properties) {
+ psmouse->vendor = "ALPS";
+ psmouse->name = "HGPK";
+ psmouse->model = version;
+ }
+
+ return 0;
+}
+
+void hgpk_module_init(void)
+{
+ hgpk_default_mode = hgpk_mode_from_name(hgpk_mode_name,
+ strlen(hgpk_mode_name));
+ if (hgpk_default_mode == HGPK_MODE_INVALID) {
+ hgpk_default_mode = HGPK_MODE_MOUSE;
+ strlcpy(hgpk_mode_name, hgpk_mode_names[HGPK_MODE_MOUSE],
+ sizeof(hgpk_mode_name));
+ }
+}
diff --git a/drivers/input/mouse/hgpk.h b/drivers/input/mouse/hgpk.h
new file mode 100644
index 0000000..dd68677
--- /dev/null
+++ b/drivers/input/mouse/hgpk.h
@@ -0,0 +1,67 @@
+/*
+ * OLPC HGPK (XO-1) touchpad PS/2 mouse driver
+ */
+
+#ifndef _HGPK_H
+#define _HGPK_H
+
+#define HGPK_GS 0xff /* The GlideSensor */
+#define HGPK_PT 0xcf /* The PenTablet */
+
+enum hgpk_model_t {
+ HGPK_MODEL_PREA = 0x0a, /* pre-B1s */
+ HGPK_MODEL_A = 0x14, /* found on B1s, PT disabled in hardware */
+ HGPK_MODEL_B = 0x28, /* B2s, has capacitance issues */
+ HGPK_MODEL_C = 0x3c,
+ HGPK_MODEL_D = 0x50, /* C1, mass production */
+};
+
+enum hgpk_spew_flag {
+ NO_SPEW,
+ MAYBE_SPEWING,
+ SPEW_DETECTED,
+ RECALIBRATING,
+};
+
+#define SPEW_WATCH_COUNT 42 /* at 12ms/packet, this is 1/2 second */
+
+enum hgpk_mode {
+ HGPK_MODE_MOUSE,
+ HGPK_MODE_GLIDESENSOR,
+ HGPK_MODE_PENTABLET,
+ HGPK_MODE_INVALID
+};
+
+struct hgpk_data {
+ struct psmouse *psmouse;
+ enum hgpk_mode mode;
+ bool powered;
+ enum hgpk_spew_flag spew_flag;
+ int spew_count, x_tally, y_tally; /* spew detection */
+ unsigned long recalib_window;
+ struct delayed_work recalib_wq;
+ int abs_x, abs_y;
+ int dupe_count;
+ int xbigj, ybigj, xlast, ylast; /* jumpiness detection */
+ int xsaw_secondary, ysaw_secondary; /* jumpiness detection */
+};
+
+#ifdef CONFIG_MOUSE_PS2_OLPC
+void hgpk_module_init(void);
+int hgpk_detect(struct psmouse *psmouse, bool set_properties);
+int hgpk_init(struct psmouse *psmouse);
+#else
+static inline void hgpk_module_init(void)
+{
+}
+static inline int hgpk_detect(struct psmouse *psmouse, bool set_properties)
+{
+ return -ENODEV;
+}
+static inline int hgpk_init(struct psmouse *psmouse)
+{
+ return -ENODEV;
+}
+#endif
+
+#endif
diff --git a/drivers/input/mouse/inport.c b/drivers/input/mouse/inport.c
new file mode 100644
index 0000000..3827a22
--- /dev/null
+++ b/drivers/input/mouse/inport.c
@@ -0,0 +1,196 @@
+/*
+ * Copyright (c) 1999-2001 Vojtech Pavlik
+ *
+ * Based on the work of:
+ * Teemu Rantanen Derrick Cole
+ * Peter Cervasio Christoph Niemann
+ * Philip Blundell Russell King
+ * Bob Harris
+ */
+
+/*
+ * Inport (ATI XL and Microsoft) busmouse driver for Linux
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * Should you need to contact me, the author, you can do so either by
+ * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
+ * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
+ */
+
+#include <linux/module.h>
+#include <linux/ioport.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/input.h>
+
+#include <asm/io.h>
+#include <asm/irq.h>
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
+MODULE_DESCRIPTION("Inport (ATI XL and Microsoft) busmouse driver");
+MODULE_LICENSE("GPL");
+
+#define INPORT_BASE 0x23c
+#define INPORT_EXTENT 4
+
+#define INPORT_CONTROL_PORT INPORT_BASE + 0
+#define INPORT_DATA_PORT INPORT_BASE + 1
+#define INPORT_SIGNATURE_PORT INPORT_BASE + 2
+
+#define INPORT_REG_BTNS 0x00
+#define INPORT_REG_X 0x01
+#define INPORT_REG_Y 0x02
+#define INPORT_REG_MODE 0x07
+#define INPORT_RESET 0x80
+
+#ifdef CONFIG_MOUSE_ATIXL
+#define INPORT_NAME "ATI XL Mouse"
+#define INPORT_VENDOR 0x0002
+#define INPORT_SPEED_30HZ 0x01
+#define INPORT_SPEED_50HZ 0x02
+#define INPORT_SPEED_100HZ 0x03
+#define INPORT_SPEED_200HZ 0x04
+#define INPORT_MODE_BASE INPORT_SPEED_100HZ
+#define INPORT_MODE_IRQ 0x08
+#else
+#define INPORT_NAME "Microsoft InPort Mouse"
+#define INPORT_VENDOR 0x0001
+#define INPORT_MODE_BASE 0x10
+#define INPORT_MODE_IRQ 0x01
+#endif
+#define INPORT_MODE_HOLD 0x20
+
+#define INPORT_IRQ 5
+
+static int inport_irq = INPORT_IRQ;
+module_param_named(irq, inport_irq, uint, 0);
+MODULE_PARM_DESC(irq, "IRQ number (5=default)");
+
+static struct input_dev *inport_dev;
+
+static irqreturn_t inport_interrupt(int irq, void *dev_id)
+{
+ unsigned char buttons;
+
+ outb(INPORT_REG_MODE, INPORT_CONTROL_PORT);
+ outb(INPORT_MODE_HOLD | INPORT_MODE_IRQ | INPORT_MODE_BASE, INPORT_DATA_PORT);
+
+ outb(INPORT_REG_X, INPORT_CONTROL_PORT);
+ input_report_rel(inport_dev, REL_X, inb(INPORT_DATA_PORT));
+
+ outb(INPORT_REG_Y, INPORT_CONTROL_PORT);
+ input_report_rel(inport_dev, REL_Y, inb(INPORT_DATA_PORT));
+
+ outb(INPORT_REG_BTNS, INPORT_CONTROL_PORT);
+ buttons = inb(INPORT_DATA_PORT);
+
+ input_report_key(inport_dev, BTN_MIDDLE, buttons & 1);
+ input_report_key(inport_dev, BTN_LEFT, buttons & 2);
+ input_report_key(inport_dev, BTN_RIGHT, buttons & 4);
+
+ outb(INPORT_REG_MODE, INPORT_CONTROL_PORT);
+ outb(INPORT_MODE_IRQ | INPORT_MODE_BASE, INPORT_DATA_PORT);
+
+ input_sync(inport_dev);
+ return IRQ_HANDLED;
+}
+
+static int inport_open(struct input_dev *dev)
+{
+ if (request_irq(inport_irq, inport_interrupt, 0, "inport", NULL))
+ return -EBUSY;
+ outb(INPORT_REG_MODE, INPORT_CONTROL_PORT);
+ outb(INPORT_MODE_IRQ | INPORT_MODE_BASE, INPORT_DATA_PORT);
+
+ return 0;
+}
+
+static void inport_close(struct input_dev *dev)
+{
+ outb(INPORT_REG_MODE, INPORT_CONTROL_PORT);
+ outb(INPORT_MODE_BASE, INPORT_DATA_PORT);
+ free_irq(inport_irq, NULL);
+}
+
+static int __init inport_init(void)
+{
+ unsigned char a, b, c;
+ int err;
+
+ if (!request_region(INPORT_BASE, INPORT_EXTENT, "inport")) {
+ printk(KERN_ERR "inport.c: Can't allocate ports at %#x\n", INPORT_BASE);
+ return -EBUSY;
+ }
+
+ a = inb(INPORT_SIGNATURE_PORT);
+ b = inb(INPORT_SIGNATURE_PORT);
+ c = inb(INPORT_SIGNATURE_PORT);
+ if (a == b || a != c) {
+ printk(KERN_INFO "inport.c: Didn't find InPort mouse at %#x\n", INPORT_BASE);
+ err = -ENODEV;
+ goto err_release_region;
+ }
+
+ inport_dev = input_allocate_device();
+ if (!inport_dev) {
+ printk(KERN_ERR "inport.c: Not enough memory for input device\n");
+ err = -ENOMEM;
+ goto err_release_region;
+ }
+
+ inport_dev->name = INPORT_NAME;
+ inport_dev->phys = "isa023c/input0";
+ inport_dev->id.bustype = BUS_ISA;
+ inport_dev->id.vendor = INPORT_VENDOR;
+ inport_dev->id.product = 0x0001;
+ inport_dev->id.version = 0x0100;
+
+ inport_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL);
+ inport_dev->keybit[BIT_WORD(BTN_LEFT)] = BIT_MASK(BTN_LEFT) |
+ BIT_MASK(BTN_MIDDLE) | BIT_MASK(BTN_RIGHT);
+ inport_dev->relbit[0] = BIT_MASK(REL_X) | BIT_MASK(REL_Y);
+
+ inport_dev->open = inport_open;
+ inport_dev->close = inport_close;
+
+ outb(INPORT_RESET, INPORT_CONTROL_PORT);
+ outb(INPORT_REG_MODE, INPORT_CONTROL_PORT);
+ outb(INPORT_MODE_BASE, INPORT_DATA_PORT);
+
+ err = input_register_device(inport_dev);
+ if (err)
+ goto err_free_dev;
+
+ return 0;
+
+ err_free_dev:
+ input_free_device(inport_dev);
+ err_release_region:
+ release_region(INPORT_BASE, INPORT_EXTENT);
+
+ return err;
+}
+
+static void __exit inport_exit(void)
+{
+ input_unregister_device(inport_dev);
+ release_region(INPORT_BASE, INPORT_EXTENT);
+}
+
+module_init(inport_init);
+module_exit(inport_exit);
diff --git a/drivers/input/mouse/lifebook.c b/drivers/input/mouse/lifebook.c
new file mode 100644
index 0000000..2c4db63
--- /dev/null
+++ b/drivers/input/mouse/lifebook.c
@@ -0,0 +1,352 @@
+/*
+ * Fujitsu B-series Lifebook PS/2 TouchScreen driver
+ *
+ * Copyright (c) 2005 Vojtech Pavlik <vojtech@suse.cz>
+ * Copyright (c) 2005 Kenan Esau <kenan.esau@conan.de>
+ *
+ * TouchScreen detection, absolute mode setting and packet layout is taken from
+ * Harald Hoyer's description of the device.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ */
+
+#include <linux/input.h>
+#include <linux/serio.h>
+#include <linux/libps2.h>
+#include <linux/dmi.h>
+#include <linux/slab.h>
+
+#include "psmouse.h"
+#include "lifebook.h"
+
+struct lifebook_data {
+ struct input_dev *dev2; /* Relative device */
+ char phys[32];
+};
+
+static bool lifebook_present;
+
+static const char *desired_serio_phys;
+
+static int lifebook_limit_serio3(const struct dmi_system_id *d)
+{
+ desired_serio_phys = "isa0060/serio3";
+ return 1;
+}
+
+static bool lifebook_use_6byte_proto;
+
+static int lifebook_set_6byte_proto(const struct dmi_system_id *d)
+{
+ lifebook_use_6byte_proto = true;
+ return 1;
+}
+
+static const struct dmi_system_id __initconst lifebook_dmi_table[] = {
+ {
+ /* FLORA-ie 55mi */
+ .matches = {
+ DMI_MATCH(DMI_PRODUCT_NAME, "FLORA-ie 55mi"),
+ },
+ },
+ {
+ /* LifeBook B */
+ .matches = {
+ DMI_MATCH(DMI_PRODUCT_NAME, "Lifebook B Series"),
+ },
+ },
+ {
+ /* LifeBook B */
+ .matches = {
+ DMI_MATCH(DMI_PRODUCT_NAME, "LifeBook B Series"),
+ },
+ },
+ {
+ /* Lifebook B */
+ .matches = {
+ DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK B Series"),
+ },
+ },
+ {
+ /* Lifebook B-2130 */
+ .matches = {
+ DMI_MATCH(DMI_BOARD_NAME, "ZEPHYR"),
+ },
+ },
+ {
+ /* Lifebook B213x/B2150 */
+ .matches = {
+ DMI_MATCH(DMI_PRODUCT_NAME, "LifeBook B2131/B2133/B2150"),
+ },
+ },
+ {
+ /* Zephyr */
+ .matches = {
+ DMI_MATCH(DMI_PRODUCT_NAME, "ZEPHYR"),
+ },
+ },
+ {
+ /* Panasonic CF-18 */
+ .matches = {
+ DMI_MATCH(DMI_PRODUCT_NAME, "CF-18"),
+ },
+ .callback = lifebook_limit_serio3,
+ },
+ {
+ /* Panasonic CF-28 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Matsushita"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "CF-28"),
+ },
+ .callback = lifebook_set_6byte_proto,
+ },
+ {
+ /* Panasonic CF-29 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Matsushita"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "CF-29"),
+ },
+ .callback = lifebook_set_6byte_proto,
+ },
+ {
+ /* Panasonic CF-72 */
+ .matches = {
+ DMI_MATCH(DMI_PRODUCT_NAME, "CF-72"),
+ },
+ .callback = lifebook_set_6byte_proto,
+ },
+ {
+ /* Lifebook B142 */
+ .matches = {
+ DMI_MATCH(DMI_PRODUCT_NAME, "LifeBook B142"),
+ },
+ },
+ { }
+};
+
+void __init lifebook_module_init(void)
+{
+ lifebook_present = dmi_check_system(lifebook_dmi_table);
+}
+
+static psmouse_ret_t lifebook_process_byte(struct psmouse *psmouse)
+{
+ struct lifebook_data *priv = psmouse->private;
+ struct input_dev *dev1 = psmouse->dev;
+ struct input_dev *dev2 = priv ? priv->dev2 : NULL;
+ unsigned char *packet = psmouse->packet;
+ bool relative_packet = packet[0] & 0x08;
+
+ if (relative_packet || !lifebook_use_6byte_proto) {
+ if (psmouse->pktcnt != 3)
+ return PSMOUSE_GOOD_DATA;
+ } else {
+ switch (psmouse->pktcnt) {
+ case 1:
+ return (packet[0] & 0xf8) == 0x00 ?
+ PSMOUSE_GOOD_DATA : PSMOUSE_BAD_DATA;
+ case 2:
+ return PSMOUSE_GOOD_DATA;
+ case 3:
+ return ((packet[2] & 0x30) << 2) == (packet[2] & 0xc0) ?
+ PSMOUSE_GOOD_DATA : PSMOUSE_BAD_DATA;
+ case 4:
+ return (packet[3] & 0xf8) == 0xc0 ?
+ PSMOUSE_GOOD_DATA : PSMOUSE_BAD_DATA;
+ case 5:
+ return (packet[4] & 0xc0) == (packet[2] & 0xc0) ?
+ PSMOUSE_GOOD_DATA : PSMOUSE_BAD_DATA;
+ case 6:
+ if (((packet[5] & 0x30) << 2) != (packet[5] & 0xc0))
+ return PSMOUSE_BAD_DATA;
+ if ((packet[5] & 0xc0) != (packet[1] & 0xc0))
+ return PSMOUSE_BAD_DATA;
+ break; /* report data */
+ }
+ }
+
+ if (relative_packet) {
+ if (!dev2)
+ psmouse_warn(psmouse,
+ "got relative packet but no relative device set up\n");
+ } else {
+ if (lifebook_use_6byte_proto) {
+ input_report_abs(dev1, ABS_X,
+ ((packet[1] & 0x3f) << 6) | (packet[2] & 0x3f));
+ input_report_abs(dev1, ABS_Y,
+ 4096 - (((packet[4] & 0x3f) << 6) | (packet[5] & 0x3f)));
+ } else {
+ input_report_abs(dev1, ABS_X,
+ (packet[1] | ((packet[0] & 0x30) << 4)));
+ input_report_abs(dev1, ABS_Y,
+ 1024 - (packet[2] | ((packet[0] & 0xC0) << 2)));
+ }
+ input_report_key(dev1, BTN_TOUCH, packet[0] & 0x04);
+ input_sync(dev1);
+ }
+
+ if (dev2) {
+ if (relative_packet) {
+ input_report_rel(dev2, REL_X,
+ ((packet[0] & 0x10) ? packet[1] - 256 : packet[1]));
+ input_report_rel(dev2, REL_Y,
+ -(int)((packet[0] & 0x20) ? packet[2] - 256 : packet[2]));
+ }
+ input_report_key(dev2, BTN_LEFT, packet[0] & 0x01);
+ input_report_key(dev2, BTN_RIGHT, packet[0] & 0x02);
+ input_sync(dev2);
+ }
+
+ return PSMOUSE_FULL_PACKET;
+}
+
+static int lifebook_absolute_mode(struct psmouse *psmouse)
+{
+ struct ps2dev *ps2dev = &psmouse->ps2dev;
+ unsigned char param;
+
+ if (psmouse_reset(psmouse))
+ return -1;
+
+ /*
+ * Enable absolute output -- ps2_command fails always but if
+ * you leave this call out the touchscreen will never send
+ * absolute coordinates
+ */
+ param = lifebook_use_6byte_proto ? 0x08 : 0x07;
+ ps2_command(ps2dev, ¶m, PSMOUSE_CMD_SETRES);
+
+ return 0;
+}
+
+static void lifebook_relative_mode(struct psmouse *psmouse)
+{
+ struct ps2dev *ps2dev = &psmouse->ps2dev;
+ unsigned char param = 0x06;
+
+ ps2_command(ps2dev, ¶m, PSMOUSE_CMD_SETRES);
+}
+
+static void lifebook_set_resolution(struct psmouse *psmouse, unsigned int resolution)
+{
+ static const unsigned char params[] = { 0, 1, 2, 2, 3 };
+ unsigned char p;
+
+ if (resolution == 0 || resolution > 400)
+ resolution = 400;
+
+ p = params[resolution / 100];
+ ps2_command(&psmouse->ps2dev, &p, PSMOUSE_CMD_SETRES);
+ psmouse->resolution = 50 << p;
+}
+
+static void lifebook_disconnect(struct psmouse *psmouse)
+{
+ struct lifebook_data *priv = psmouse->private;
+
+ psmouse_reset(psmouse);
+ if (priv) {
+ input_unregister_device(priv->dev2);
+ kfree(priv);
+ }
+ psmouse->private = NULL;
+}
+
+int lifebook_detect(struct psmouse *psmouse, bool set_properties)
+{
+ if (!lifebook_present)
+ return -1;
+
+ if (desired_serio_phys &&
+ strcmp(psmouse->ps2dev.serio->phys, desired_serio_phys))
+ return -1;
+
+ if (set_properties) {
+ psmouse->vendor = "Fujitsu";
+ psmouse->name = "Lifebook TouchScreen";
+ }
+
+ return 0;
+}
+
+static int lifebook_create_relative_device(struct psmouse *psmouse)
+{
+ struct input_dev *dev2;
+ struct lifebook_data *priv;
+ int error = -ENOMEM;
+
+ priv = kzalloc(sizeof(struct lifebook_data), GFP_KERNEL);
+ dev2 = input_allocate_device();
+ if (!priv || !dev2)
+ goto err_out;
+
+ priv->dev2 = dev2;
+ snprintf(priv->phys, sizeof(priv->phys),
+ "%s/input1", psmouse->ps2dev.serio->phys);
+
+ dev2->phys = priv->phys;
+ dev2->name = "PS/2 Touchpad";
+ dev2->id.bustype = BUS_I8042;
+ dev2->id.vendor = 0x0002;
+ dev2->id.product = PSMOUSE_LIFEBOOK;
+ dev2->id.version = 0x0000;
+ dev2->dev.parent = &psmouse->ps2dev.serio->dev;
+
+ dev2->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL);
+ dev2->relbit[BIT_WORD(REL_X)] = BIT_MASK(REL_X) | BIT_MASK(REL_Y);
+ dev2->keybit[BIT_WORD(BTN_LEFT)] =
+ BIT_MASK(BTN_LEFT) | BIT_MASK(BTN_RIGHT);
+
+ error = input_register_device(priv->dev2);
+ if (error)
+ goto err_out;
+
+ psmouse->private = priv;
+ return 0;
+
+ err_out:
+ input_free_device(dev2);
+ kfree(priv);
+ return error;
+}
+
+int lifebook_init(struct psmouse *psmouse)
+{
+ struct input_dev *dev1 = psmouse->dev;
+ int max_coord = lifebook_use_6byte_proto ? 4096 : 1024;
+
+ if (lifebook_absolute_mode(psmouse))
+ return -1;
+
+ dev1->evbit[0] = BIT_MASK(EV_ABS) | BIT_MASK(EV_KEY);
+ dev1->relbit[0] = 0;
+ dev1->keybit[BIT_WORD(BTN_MOUSE)] = 0;
+ dev1->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH);
+ input_set_abs_params(dev1, ABS_X, 0, max_coord, 0, 0);
+ input_set_abs_params(dev1, ABS_Y, 0, max_coord, 0, 0);
+
+ if (!desired_serio_phys) {
+ if (lifebook_create_relative_device(psmouse)) {
+ lifebook_relative_mode(psmouse);
+ return -1;
+ }
+ }
+
+ psmouse->protocol_handler = lifebook_process_byte;
+ psmouse->set_resolution = lifebook_set_resolution;
+ psmouse->disconnect = lifebook_disconnect;
+ psmouse->reconnect = lifebook_absolute_mode;
+
+ psmouse->model = lifebook_use_6byte_proto ? 6 : 3;
+
+ /*
+ * Use packet size = 3 even when using 6-byte protocol because
+ * that's what POLL will return on Lifebooks (according to spec).
+ */
+ psmouse->pktsize = 3;
+
+ return 0;
+}
+
diff --git a/drivers/input/mouse/lifebook.h b/drivers/input/mouse/lifebook.h
new file mode 100644
index 0000000..4c4326c
--- /dev/null
+++ b/drivers/input/mouse/lifebook.h
@@ -0,0 +1,32 @@
+/*
+ * Fujitsu B-series Lifebook PS/2 TouchScreen driver
+ *
+ * Copyright (c) 2005 Vojtech Pavlik
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ */
+
+#ifndef _LIFEBOOK_H
+#define _LIFEBOOK_H
+
+#ifdef CONFIG_MOUSE_PS2_LIFEBOOK
+void lifebook_module_init(void);
+int lifebook_detect(struct psmouse *psmouse, bool set_properties);
+int lifebook_init(struct psmouse *psmouse);
+#else
+inline void lifebook_module_init(void)
+{
+}
+inline int lifebook_detect(struct psmouse *psmouse, bool set_properties)
+{
+ return -ENOSYS;
+}
+inline int lifebook_init(struct psmouse *psmouse)
+{
+ return -ENOSYS;
+}
+#endif
+
+#endif
diff --git a/drivers/input/mouse/logibm.c b/drivers/input/mouse/logibm.c
new file mode 100644
index 0000000..e241311
--- /dev/null
+++ b/drivers/input/mouse/logibm.c
@@ -0,0 +1,185 @@
+/*
+ * Copyright (c) 1999-2001 Vojtech Pavlik
+ *
+ * Based on the work of:
+ * James Banks Matthew Dillon
+ * David Giller Nathan Laredo
+ * Linus Torvalds Johan Myreen
+ * Cliff Matthews Philip Blundell
+ * Russell King
+ */
+
+/*
+ * Logitech Bus Mouse Driver for Linux
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * Should you need to contact me, the author, you can do so either by
+ * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
+ * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
+ */
+
+#include <linux/module.h>
+#include <linux/delay.h>
+#include <linux/ioport.h>
+#include <linux/init.h>
+#include <linux/input.h>
+#include <linux/interrupt.h>
+
+#include <asm/io.h>
+#include <asm/irq.h>
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
+MODULE_DESCRIPTION("Logitech busmouse driver");
+MODULE_LICENSE("GPL");
+
+#define LOGIBM_BASE 0x23c
+#define LOGIBM_EXTENT 4
+
+#define LOGIBM_DATA_PORT LOGIBM_BASE + 0
+#define LOGIBM_SIGNATURE_PORT LOGIBM_BASE + 1
+#define LOGIBM_CONTROL_PORT LOGIBM_BASE + 2
+#define LOGIBM_CONFIG_PORT LOGIBM_BASE + 3
+
+#define LOGIBM_ENABLE_IRQ 0x00
+#define LOGIBM_DISABLE_IRQ 0x10
+#define LOGIBM_READ_X_LOW 0x80
+#define LOGIBM_READ_X_HIGH 0xa0
+#define LOGIBM_READ_Y_LOW 0xc0
+#define LOGIBM_READ_Y_HIGH 0xe0
+
+#define LOGIBM_DEFAULT_MODE 0x90
+#define LOGIBM_CONFIG_BYTE 0x91
+#define LOGIBM_SIGNATURE_BYTE 0xa5
+
+#define LOGIBM_IRQ 5
+
+static int logibm_irq = LOGIBM_IRQ;
+module_param_named(irq, logibm_irq, uint, 0);
+MODULE_PARM_DESC(irq, "IRQ number (5=default)");
+
+static struct input_dev *logibm_dev;
+
+static irqreturn_t logibm_interrupt(int irq, void *dev_id)
+{
+ char dx, dy;
+ unsigned char buttons;
+
+ outb(LOGIBM_READ_X_LOW, LOGIBM_CONTROL_PORT);
+ dx = (inb(LOGIBM_DATA_PORT) & 0xf);
+ outb(LOGIBM_READ_X_HIGH, LOGIBM_CONTROL_PORT);
+ dx |= (inb(LOGIBM_DATA_PORT) & 0xf) << 4;
+ outb(LOGIBM_READ_Y_LOW, LOGIBM_CONTROL_PORT);
+ dy = (inb(LOGIBM_DATA_PORT) & 0xf);
+ outb(LOGIBM_READ_Y_HIGH, LOGIBM_CONTROL_PORT);
+ buttons = inb(LOGIBM_DATA_PORT);
+ dy |= (buttons & 0xf) << 4;
+ buttons = ~buttons >> 5;
+
+ input_report_rel(logibm_dev, REL_X, dx);
+ input_report_rel(logibm_dev, REL_Y, dy);
+ input_report_key(logibm_dev, BTN_RIGHT, buttons & 1);
+ input_report_key(logibm_dev, BTN_MIDDLE, buttons & 2);
+ input_report_key(logibm_dev, BTN_LEFT, buttons & 4);
+ input_sync(logibm_dev);
+
+ outb(LOGIBM_ENABLE_IRQ, LOGIBM_CONTROL_PORT);
+ return IRQ_HANDLED;
+}
+
+static int logibm_open(struct input_dev *dev)
+{
+ if (request_irq(logibm_irq, logibm_interrupt, 0, "logibm", NULL)) {
+ printk(KERN_ERR "logibm.c: Can't allocate irq %d\n", logibm_irq);
+ return -EBUSY;
+ }
+ outb(LOGIBM_ENABLE_IRQ, LOGIBM_CONTROL_PORT);
+ return 0;
+}
+
+static void logibm_close(struct input_dev *dev)
+{
+ outb(LOGIBM_DISABLE_IRQ, LOGIBM_CONTROL_PORT);
+ free_irq(logibm_irq, NULL);
+}
+
+static int __init logibm_init(void)
+{
+ int err;
+
+ if (!request_region(LOGIBM_BASE, LOGIBM_EXTENT, "logibm")) {
+ printk(KERN_ERR "logibm.c: Can't allocate ports at %#x\n", LOGIBM_BASE);
+ return -EBUSY;
+ }
+
+ outb(LOGIBM_CONFIG_BYTE, LOGIBM_CONFIG_PORT);
+ outb(LOGIBM_SIGNATURE_BYTE, LOGIBM_SIGNATURE_PORT);
+ udelay(100);
+
+ if (inb(LOGIBM_SIGNATURE_PORT) != LOGIBM_SIGNATURE_BYTE) {
+ printk(KERN_INFO "logibm.c: Didn't find Logitech busmouse at %#x\n", LOGIBM_BASE);
+ err = -ENODEV;
+ goto err_release_region;
+ }
+
+ outb(LOGIBM_DEFAULT_MODE, LOGIBM_CONFIG_PORT);
+ outb(LOGIBM_DISABLE_IRQ, LOGIBM_CONTROL_PORT);
+
+ logibm_dev = input_allocate_device();
+ if (!logibm_dev) {
+ printk(KERN_ERR "logibm.c: Not enough memory for input device\n");
+ err = -ENOMEM;
+ goto err_release_region;
+ }
+
+ logibm_dev->name = "Logitech bus mouse";
+ logibm_dev->phys = "isa023c/input0";
+ logibm_dev->id.bustype = BUS_ISA;
+ logibm_dev->id.vendor = 0x0003;
+ logibm_dev->id.product = 0x0001;
+ logibm_dev->id.version = 0x0100;
+
+ logibm_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL);
+ logibm_dev->keybit[BIT_WORD(BTN_LEFT)] = BIT_MASK(BTN_LEFT) |
+ BIT_MASK(BTN_MIDDLE) | BIT_MASK(BTN_RIGHT);
+ logibm_dev->relbit[0] = BIT_MASK(REL_X) | BIT_MASK(REL_Y);
+
+ logibm_dev->open = logibm_open;
+ logibm_dev->close = logibm_close;
+
+ err = input_register_device(logibm_dev);
+ if (err)
+ goto err_free_dev;
+
+ return 0;
+
+ err_free_dev:
+ input_free_device(logibm_dev);
+ err_release_region:
+ release_region(LOGIBM_BASE, LOGIBM_EXTENT);
+
+ return err;
+}
+
+static void __exit logibm_exit(void)
+{
+ input_unregister_device(logibm_dev);
+ release_region(LOGIBM_BASE, LOGIBM_EXTENT);
+}
+
+module_init(logibm_init);
+module_exit(logibm_exit);
diff --git a/drivers/input/mouse/logips2pp.c b/drivers/input/mouse/logips2pp.c
new file mode 100644
index 0000000..faac2c3
--- /dev/null
+++ b/drivers/input/mouse/logips2pp.c
@@ -0,0 +1,420 @@
+/*
+ * Logitech PS/2++ mouse driver
+ *
+ * Copyright (c) 1999-2003 Vojtech Pavlik <vojtech@suse.cz>
+ * Copyright (c) 2003 Eric Wong <eric@yhbt.net>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ */
+
+#include <linux/input.h>
+#include <linux/serio.h>
+#include <linux/libps2.h>
+#include "psmouse.h"
+#include "logips2pp.h"
+
+/* Logitech mouse types */
+#define PS2PP_KIND_WHEEL 1
+#define PS2PP_KIND_MX 2
+#define PS2PP_KIND_TP3 3
+#define PS2PP_KIND_TRACKMAN 4
+
+/* Logitech mouse features */
+#define PS2PP_WHEEL 0x01
+#define PS2PP_HWHEEL 0x02
+#define PS2PP_SIDE_BTN 0x04
+#define PS2PP_EXTRA_BTN 0x08
+#define PS2PP_TASK_BTN 0x10
+#define PS2PP_NAV_BTN 0x20
+
+struct ps2pp_info {
+ u8 model;
+ u8 kind;
+ u16 features;
+};
+
+/*
+ * Process a PS2++ or PS2T++ packet.
+ */
+
+static psmouse_ret_t ps2pp_process_byte(struct psmouse *psmouse)
+{
+ struct input_dev *dev = psmouse->dev;
+ unsigned char *packet = psmouse->packet;
+
+ if (psmouse->pktcnt < 3)
+ return PSMOUSE_GOOD_DATA;
+
+/*
+ * Full packet accumulated, process it
+ */
+
+ if ((packet[0] & 0x48) == 0x48 && (packet[1] & 0x02) == 0x02) {
+
+ /* Logitech extended packet */
+ switch ((packet[1] >> 4) | (packet[0] & 0x30)) {
+
+ case 0x0d: /* Mouse extra info */
+
+ input_report_rel(dev, packet[2] & 0x80 ? REL_HWHEEL : REL_WHEEL,
+ (int) (packet[2] & 8) - (int) (packet[2] & 7));
+ input_report_key(dev, BTN_SIDE, (packet[2] >> 4) & 1);
+ input_report_key(dev, BTN_EXTRA, (packet[2] >> 5) & 1);
+
+ break;
+
+ case 0x0e: /* buttons 4, 5, 6, 7, 8, 9, 10 info */
+
+ input_report_key(dev, BTN_SIDE, (packet[2]) & 1);
+ input_report_key(dev, BTN_EXTRA, (packet[2] >> 1) & 1);
+ input_report_key(dev, BTN_BACK, (packet[2] >> 3) & 1);
+ input_report_key(dev, BTN_FORWARD, (packet[2] >> 4) & 1);
+ input_report_key(dev, BTN_TASK, (packet[2] >> 2) & 1);
+
+ break;
+
+ case 0x0f: /* TouchPad extra info */
+
+ input_report_rel(dev, packet[2] & 0x08 ? REL_HWHEEL : REL_WHEEL,
+ (int) ((packet[2] >> 4) & 8) - (int) ((packet[2] >> 4) & 7));
+ packet[0] = packet[2] | 0x08;
+ break;
+
+ default:
+ psmouse_dbg(psmouse,
+ "Received PS2++ packet #%x, but don't know how to handle.\n",
+ (packet[1] >> 4) | (packet[0] & 0x30));
+ break;
+ }
+ } else {
+ /* Standard PS/2 motion data */
+ input_report_rel(dev, REL_X, packet[1] ? (int) packet[1] - (int) ((packet[0] << 4) & 0x100) : 0);
+ input_report_rel(dev, REL_Y, packet[2] ? (int) ((packet[0] << 3) & 0x100) - (int) packet[2] : 0);
+ }
+
+ input_report_key(dev, BTN_LEFT, packet[0] & 1);
+ input_report_key(dev, BTN_MIDDLE, (packet[0] >> 2) & 1);
+ input_report_key(dev, BTN_RIGHT, (packet[0] >> 1) & 1);
+
+ input_sync(dev);
+
+ return PSMOUSE_FULL_PACKET;
+
+}
+
+/*
+ * ps2pp_cmd() sends a PS2++ command, sliced into two bit
+ * pieces through the SETRES command. This is needed to send extended
+ * commands to mice on notebooks that try to understand the PS/2 protocol
+ * Ugly.
+ */
+
+static int ps2pp_cmd(struct psmouse *psmouse, unsigned char *param, unsigned char command)
+{
+ if (psmouse_sliced_command(psmouse, command))
+ return -1;
+
+ if (ps2_command(&psmouse->ps2dev, param, PSMOUSE_CMD_POLL | 0x0300))
+ return -1;
+
+ return 0;
+}
+
+/*
+ * SmartScroll / CruiseControl for some newer Logitech mice Defaults to
+ * enabled if we do nothing to it. Of course I put this in because I want it
+ * disabled :P
+ * 1 - enabled (if previously disabled, also default)
+ * 0 - disabled
+ */
+
+static void ps2pp_set_smartscroll(struct psmouse *psmouse, bool smartscroll)
+{
+ struct ps2dev *ps2dev = &psmouse->ps2dev;
+ unsigned char param[4];
+
+ ps2pp_cmd(psmouse, param, 0x32);
+
+ param[0] = 0;
+ ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES);
+ ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES);
+ ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES);
+
+ param[0] = smartscroll;
+ ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES);
+}
+
+static ssize_t ps2pp_attr_show_smartscroll(struct psmouse *psmouse,
+ void *data, char *buf)
+{
+ return sprintf(buf, "%d\n", psmouse->smartscroll);
+}
+
+static ssize_t ps2pp_attr_set_smartscroll(struct psmouse *psmouse, void *data,
+ const char *buf, size_t count)
+{
+ unsigned long value;
+
+ if (strict_strtoul(buf, 10, &value) || value > 1)
+ return -EINVAL;
+
+ ps2pp_set_smartscroll(psmouse, value);
+ psmouse->smartscroll = value;
+ return count;
+}
+
+PSMOUSE_DEFINE_ATTR(smartscroll, S_IWUSR | S_IRUGO, NULL,
+ ps2pp_attr_show_smartscroll, ps2pp_attr_set_smartscroll);
+
+/*
+ * Support 800 dpi resolution _only_ if the user wants it (there are good
+ * reasons to not use it even if the mouse supports it, and of course there are
+ * also good reasons to use it, let the user decide).
+ */
+
+static void ps2pp_set_resolution(struct psmouse *psmouse, unsigned int resolution)
+{
+ if (resolution > 400) {
+ struct ps2dev *ps2dev = &psmouse->ps2dev;
+ unsigned char param = 3;
+
+ ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11);
+ ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11);
+ ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11);
+ ps2_command(ps2dev, ¶m, PSMOUSE_CMD_SETRES);
+ psmouse->resolution = 800;
+ } else
+ psmouse_set_resolution(psmouse, resolution);
+}
+
+static void ps2pp_disconnect(struct psmouse *psmouse)
+{
+ device_remove_file(&psmouse->ps2dev.serio->dev, &psmouse_attr_smartscroll.dattr);
+}
+
+static const struct ps2pp_info *get_model_info(unsigned char model)
+{
+ static const struct ps2pp_info ps2pp_list[] = {
+ { 1, 0, 0 }, /* Simple 2-button mouse */
+ { 12, 0, PS2PP_SIDE_BTN},
+ { 13, 0, 0 },
+ { 15, PS2PP_KIND_MX, /* MX1000 */
+ PS2PP_WHEEL | PS2PP_SIDE_BTN | PS2PP_TASK_BTN |
+ PS2PP_EXTRA_BTN | PS2PP_NAV_BTN | PS2PP_HWHEEL },
+ { 40, 0, PS2PP_SIDE_BTN },
+ { 41, 0, PS2PP_SIDE_BTN },
+ { 42, 0, PS2PP_SIDE_BTN },
+ { 43, 0, PS2PP_SIDE_BTN },
+ { 50, 0, 0 },
+ { 51, 0, 0 },
+ { 52, PS2PP_KIND_WHEEL, PS2PP_SIDE_BTN | PS2PP_WHEEL },
+ { 53, PS2PP_KIND_WHEEL, PS2PP_WHEEL },
+ { 56, PS2PP_KIND_WHEEL, PS2PP_SIDE_BTN | PS2PP_WHEEL }, /* Cordless MouseMan Wheel */
+ { 61, PS2PP_KIND_MX, /* MX700 */
+ PS2PP_WHEEL | PS2PP_SIDE_BTN | PS2PP_TASK_BTN |
+ PS2PP_EXTRA_BTN | PS2PP_NAV_BTN },
+ { 66, PS2PP_KIND_MX, /* MX3100 reciver */
+ PS2PP_WHEEL | PS2PP_SIDE_BTN | PS2PP_TASK_BTN |
+ PS2PP_EXTRA_BTN | PS2PP_NAV_BTN | PS2PP_HWHEEL },
+ { 72, PS2PP_KIND_TRACKMAN, 0 }, /* T-CH11: TrackMan Marble */
+ { 73, PS2PP_KIND_TRACKMAN, PS2PP_SIDE_BTN }, /* TrackMan FX */
+ { 75, PS2PP_KIND_WHEEL, PS2PP_WHEEL },
+ { 76, PS2PP_KIND_WHEEL, PS2PP_WHEEL },
+ { 79, PS2PP_KIND_TRACKMAN, PS2PP_WHEEL }, /* TrackMan with wheel */
+ { 80, PS2PP_KIND_WHEEL, PS2PP_SIDE_BTN | PS2PP_WHEEL },
+ { 81, PS2PP_KIND_WHEEL, PS2PP_WHEEL },
+ { 83, PS2PP_KIND_WHEEL, PS2PP_WHEEL },
+ { 85, PS2PP_KIND_WHEEL, PS2PP_WHEEL },
+ { 86, PS2PP_KIND_WHEEL, PS2PP_WHEEL },
+ { 87, PS2PP_KIND_WHEEL, PS2PP_WHEEL },
+ { 88, PS2PP_KIND_WHEEL, PS2PP_WHEEL },
+ { 96, 0, 0 },
+ { 97, PS2PP_KIND_TP3, PS2PP_WHEEL | PS2PP_HWHEEL },
+ { 99, PS2PP_KIND_WHEEL, PS2PP_WHEEL },
+ { 100, PS2PP_KIND_MX, /* MX510 */
+ PS2PP_WHEEL | PS2PP_SIDE_BTN | PS2PP_TASK_BTN |
+ PS2PP_EXTRA_BTN | PS2PP_NAV_BTN },
+ { 111, PS2PP_KIND_MX, PS2PP_WHEEL | PS2PP_SIDE_BTN }, /* MX300 reports task button as side */
+ { 112, PS2PP_KIND_MX, /* MX500 */
+ PS2PP_WHEEL | PS2PP_SIDE_BTN | PS2PP_TASK_BTN |
+ PS2PP_EXTRA_BTN | PS2PP_NAV_BTN },
+ { 114, PS2PP_KIND_MX, /* MX310 */
+ PS2PP_WHEEL | PS2PP_SIDE_BTN |
+ PS2PP_TASK_BTN | PS2PP_EXTRA_BTN }
+ };
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(ps2pp_list); i++)
+ if (model == ps2pp_list[i].model)
+ return &ps2pp_list[i];
+
+ return NULL;
+}
+
+/*
+ * Set up input device's properties based on the detected mouse model.
+ */
+
+static void ps2pp_set_model_properties(struct psmouse *psmouse,
+ const struct ps2pp_info *model_info,
+ bool using_ps2pp)
+{
+ struct input_dev *input_dev = psmouse->dev;
+
+ if (model_info->features & PS2PP_SIDE_BTN)
+ __set_bit(BTN_SIDE, input_dev->keybit);
+
+ if (model_info->features & PS2PP_EXTRA_BTN)
+ __set_bit(BTN_EXTRA, input_dev->keybit);
+
+ if (model_info->features & PS2PP_TASK_BTN)
+ __set_bit(BTN_TASK, input_dev->keybit);
+
+ if (model_info->features & PS2PP_NAV_BTN) {
+ __set_bit(BTN_FORWARD, input_dev->keybit);
+ __set_bit(BTN_BACK, input_dev->keybit);
+ }
+
+ if (model_info->features & PS2PP_WHEEL)
+ __set_bit(REL_WHEEL, input_dev->relbit);
+
+ if (model_info->features & PS2PP_HWHEEL)
+ __set_bit(REL_HWHEEL, input_dev->relbit);
+
+ switch (model_info->kind) {
+
+ case PS2PP_KIND_WHEEL:
+ psmouse->name = "Wheel Mouse";
+ break;
+
+ case PS2PP_KIND_MX:
+ psmouse->name = "MX Mouse";
+ break;
+
+ case PS2PP_KIND_TP3:
+ psmouse->name = "TouchPad 3";
+ break;
+
+ case PS2PP_KIND_TRACKMAN:
+ psmouse->name = "TrackMan";
+ break;
+
+ default:
+ /*
+ * Set name to "Mouse" only when using PS2++,
+ * otherwise let other protocols define suitable
+ * name
+ */
+ if (using_ps2pp)
+ psmouse->name = "Mouse";
+ break;
+ }
+}
+
+
+/*
+ * Logitech magic init. Detect whether the mouse is a Logitech one
+ * and its exact model and try turning on extended protocol for ones
+ * that support it.
+ */
+
+int ps2pp_init(struct psmouse *psmouse, bool set_properties)
+{
+ struct ps2dev *ps2dev = &psmouse->ps2dev;
+ unsigned char param[4];
+ unsigned char model, buttons;
+ const struct ps2pp_info *model_info;
+ bool use_ps2pp = false;
+ int error;
+
+ param[0] = 0;
+ ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES);
+ ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11);
+ ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11);
+ ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11);
+ param[1] = 0;
+ ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO);
+
+ model = ((param[0] >> 4) & 0x07) | ((param[0] << 3) & 0x78);
+ buttons = param[1];
+
+ if (!model || !buttons)
+ return -1;
+
+ model_info = get_model_info(model);
+ if (model_info) {
+
+/*
+ * Do Logitech PS2++ / PS2T++ magic init.
+ */
+ if (model_info->kind == PS2PP_KIND_TP3) { /* Touch Pad 3 */
+
+ /* Unprotect RAM */
+ param[0] = 0x11; param[1] = 0x04; param[2] = 0x68;
+ ps2_command(ps2dev, param, 0x30d1);
+ /* Enable features */
+ param[0] = 0x11; param[1] = 0x05; param[2] = 0x0b;
+ ps2_command(ps2dev, param, 0x30d1);
+ /* Enable PS2++ */
+ param[0] = 0x11; param[1] = 0x09; param[2] = 0xc3;
+ ps2_command(ps2dev, param, 0x30d1);
+
+ param[0] = 0;
+ if (!ps2_command(ps2dev, param, 0x13d1) &&
+ param[0] == 0x06 && param[1] == 0x00 && param[2] == 0x14) {
+ use_ps2pp = true;
+ }
+
+ } else {
+
+ param[0] = param[1] = param[2] = 0;
+ ps2pp_cmd(psmouse, param, 0x39); /* Magic knock */
+ ps2pp_cmd(psmouse, param, 0xDB);
+
+ if ((param[0] & 0x78) == 0x48 &&
+ (param[1] & 0xf3) == 0xc2 &&
+ (param[2] & 0x03) == ((param[1] >> 2) & 3)) {
+ ps2pp_set_smartscroll(psmouse, false);
+ use_ps2pp = true;
+ }
+ }
+
+ } else {
+ psmouse_warn(psmouse, "Detected unknown Logitech mouse model %d\n", model);
+ }
+
+ if (set_properties) {
+ psmouse->vendor = "Logitech";
+ psmouse->model = model;
+
+ if (use_ps2pp) {
+ psmouse->protocol_handler = ps2pp_process_byte;
+ psmouse->pktsize = 3;
+
+ if (model_info->kind != PS2PP_KIND_TP3) {
+ psmouse->set_resolution = ps2pp_set_resolution;
+ psmouse->disconnect = ps2pp_disconnect;
+
+ error = device_create_file(&psmouse->ps2dev.serio->dev,
+ &psmouse_attr_smartscroll.dattr);
+ if (error) {
+ psmouse_err(psmouse,
+ "failed to create smartscroll sysfs attribute, error: %d\n",
+ error);
+ return -1;
+ }
+ }
+ }
+
+ if (buttons >= 3)
+ __set_bit(BTN_MIDDLE, psmouse->dev->keybit);
+
+ if (model_info)
+ ps2pp_set_model_properties(psmouse, model_info, use_ps2pp);
+ }
+
+ return use_ps2pp ? 0 : -1;
+}
+
diff --git a/drivers/input/mouse/logips2pp.h b/drivers/input/mouse/logips2pp.h
new file mode 100644
index 0000000..0c186f0
--- /dev/null
+++ b/drivers/input/mouse/logips2pp.h
@@ -0,0 +1,23 @@
+/*
+ * Logitech PS/2++ mouse driver header
+ *
+ * Copyright (c) 2003 Vojtech Pavlik <vojtech@suse.cz>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ */
+
+#ifndef _LOGIPS2PP_H
+#define _LOGIPS2PP_H
+
+#ifdef CONFIG_MOUSE_PS2_LOGIPS2PP
+int ps2pp_init(struct psmouse *psmouse, bool set_properties);
+#else
+inline int ps2pp_init(struct psmouse *psmouse, bool set_properties)
+{
+ return -ENOSYS;
+}
+#endif /* CONFIG_MOUSE_PS2_LOGIPS2PP */
+
+#endif
diff --git a/drivers/input/mouse/maplemouse.c b/drivers/input/mouse/maplemouse.c
new file mode 100644
index 0000000..5f27817
--- /dev/null
+++ b/drivers/input/mouse/maplemouse.c
@@ -0,0 +1,150 @@
+/*
+ * SEGA Dreamcast mouse driver
+ * Based on drivers/usb/usbmouse.c
+ *
+ * Copyright (c) Yaegashi Takeshi, 2001
+ * Copyright (c) Adrian McMenamin, 2008 - 2009
+ */
+
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/input.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/timer.h>
+#include <linux/maple.h>
+
+MODULE_AUTHOR("Adrian McMenamin <adrian@mcmen.demon.co.uk>");
+MODULE_DESCRIPTION("SEGA Dreamcast mouse driver");
+MODULE_LICENSE("GPL");
+
+struct dc_mouse {
+ struct input_dev *dev;
+ struct maple_device *mdev;
+};
+
+static void dc_mouse_callback(struct mapleq *mq)
+{
+ int buttons, relx, rely, relz;
+ struct maple_device *mapledev = mq->dev;
+ struct dc_mouse *mse = maple_get_drvdata(mapledev);
+ struct input_dev *dev = mse->dev;
+ unsigned char *res = mq->recvbuf->buf;
+
+ buttons = ~res[8];
+ relx = *(unsigned short *)(res + 12) - 512;
+ rely = *(unsigned short *)(res + 14) - 512;
+ relz = *(unsigned short *)(res + 16) - 512;
+
+ input_report_key(dev, BTN_LEFT, buttons & 4);
+ input_report_key(dev, BTN_MIDDLE, buttons & 9);
+ input_report_key(dev, BTN_RIGHT, buttons & 2);
+ input_report_rel(dev, REL_X, relx);
+ input_report_rel(dev, REL_Y, rely);
+ input_report_rel(dev, REL_WHEEL, relz);
+ input_sync(dev);
+}
+
+static int dc_mouse_open(struct input_dev *dev)
+{
+ struct dc_mouse *mse = maple_get_drvdata(to_maple_dev(&dev->dev));
+
+ maple_getcond_callback(mse->mdev, dc_mouse_callback, HZ/50,
+ MAPLE_FUNC_MOUSE);
+
+ return 0;
+}
+
+static void dc_mouse_close(struct input_dev *dev)
+{
+ struct dc_mouse *mse = maple_get_drvdata(to_maple_dev(&dev->dev));
+
+ maple_getcond_callback(mse->mdev, dc_mouse_callback, 0,
+ MAPLE_FUNC_MOUSE);
+}
+
+/* allow the mouse to be used */
+static int __devinit probe_maple_mouse(struct device *dev)
+{
+ struct maple_device *mdev = to_maple_dev(dev);
+ struct maple_driver *mdrv = to_maple_driver(dev->driver);
+ int error;
+ struct input_dev *input_dev;
+ struct dc_mouse *mse;
+
+ mse = kzalloc(sizeof(struct dc_mouse), GFP_KERNEL);
+ if (!mse) {
+ error = -ENOMEM;
+ goto fail;
+ }
+
+ input_dev = input_allocate_device();
+ if (!input_dev) {
+ error = -ENOMEM;
+ goto fail_nomem;
+ }
+
+ mse->dev = input_dev;
+ mse->mdev = mdev;
+
+ input_set_drvdata(input_dev, mse);
+ input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL);
+ input_dev->keybit[BIT_WORD(BTN_MOUSE)] = BIT_MASK(BTN_LEFT) |
+ BIT_MASK(BTN_RIGHT) | BIT_MASK(BTN_MIDDLE);
+ input_dev->relbit[0] = BIT_MASK(REL_X) | BIT_MASK(REL_Y) |
+ BIT_MASK(REL_WHEEL);
+ input_dev->open = dc_mouse_open;
+ input_dev->close = dc_mouse_close;
+ input_dev->name = mdev->product_name;
+ input_dev->id.bustype = BUS_HOST;
+ error = input_register_device(input_dev);
+ if (error)
+ goto fail_register;
+
+ mdev->driver = mdrv;
+ maple_set_drvdata(mdev, mse);
+
+ return error;
+
+fail_register:
+ input_free_device(input_dev);
+fail_nomem:
+ kfree(mse);
+fail:
+ return error;
+}
+
+static int __devexit remove_maple_mouse(struct device *dev)
+{
+ struct maple_device *mdev = to_maple_dev(dev);
+ struct dc_mouse *mse = maple_get_drvdata(mdev);
+
+ mdev->callback = NULL;
+ input_unregister_device(mse->dev);
+ maple_set_drvdata(mdev, NULL);
+ kfree(mse);
+
+ return 0;
+}
+
+static struct maple_driver dc_mouse_driver = {
+ .function = MAPLE_FUNC_MOUSE,
+ .drv = {
+ .name = "Dreamcast_mouse",
+ .probe = probe_maple_mouse,
+ .remove = __devexit_p(remove_maple_mouse),
+ },
+};
+
+static int __init dc_mouse_init(void)
+{
+ return maple_driver_register(&dc_mouse_driver);
+}
+
+static void __exit dc_mouse_exit(void)
+{
+ maple_driver_unregister(&dc_mouse_driver);
+}
+
+module_init(dc_mouse_init);
+module_exit(dc_mouse_exit);
diff --git a/drivers/input/mouse/pc110pad.c b/drivers/input/mouse/pc110pad.c
new file mode 100644
index 0000000..7b02b65
--- /dev/null
+++ b/drivers/input/mouse/pc110pad.c
@@ -0,0 +1,179 @@
+/*
+ * Copyright (c) 2000-2001 Vojtech Pavlik
+ *
+ * Based on the work of:
+ * Alan Cox Robin O'Leary
+ */
+
+/*
+ * IBM PC110 touchpad driver for Linux
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * Should you need to contact me, the author, you can do so either by
+ * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
+ * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/ioport.h>
+#include <linux/input.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/pci.h>
+#include <linux/delay.h>
+
+#include <asm/io.h>
+#include <asm/irq.h>
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
+MODULE_DESCRIPTION("IBM PC110 touchpad driver");
+MODULE_LICENSE("GPL");
+
+#define PC110PAD_OFF 0x30
+#define PC110PAD_ON 0x38
+
+static int pc110pad_irq = 10;
+static int pc110pad_io = 0x15e0;
+
+static struct input_dev *pc110pad_dev;
+static int pc110pad_data[3];
+static int pc110pad_count;
+
+static irqreturn_t pc110pad_interrupt(int irq, void *ptr)
+{
+ int value = inb_p(pc110pad_io);
+ int handshake = inb_p(pc110pad_io + 2);
+
+ outb(handshake | 1, pc110pad_io + 2);
+ udelay(2);
+ outb(handshake & ~1, pc110pad_io + 2);
+ udelay(2);
+ inb_p(0x64);
+
+ pc110pad_data[pc110pad_count++] = value;
+
+ if (pc110pad_count < 3)
+ return IRQ_HANDLED;
+
+ input_report_key(pc110pad_dev, BTN_TOUCH,
+ pc110pad_data[0] & 0x01);
+ input_report_abs(pc110pad_dev, ABS_X,
+ pc110pad_data[1] | ((pc110pad_data[0] << 3) & 0x80) | ((pc110pad_data[0] << 1) & 0x100));
+ input_report_abs(pc110pad_dev, ABS_Y,
+ pc110pad_data[2] | ((pc110pad_data[0] << 4) & 0x80));
+ input_sync(pc110pad_dev);
+
+ pc110pad_count = 0;
+ return IRQ_HANDLED;
+}
+
+static void pc110pad_close(struct input_dev *dev)
+{
+ outb(PC110PAD_OFF, pc110pad_io + 2);
+}
+
+static int pc110pad_open(struct input_dev *dev)
+{
+ pc110pad_interrupt(0, NULL);
+ pc110pad_interrupt(0, NULL);
+ pc110pad_interrupt(0, NULL);
+ outb(PC110PAD_ON, pc110pad_io + 2);
+ pc110pad_count = 0;
+
+ return 0;
+}
+
+/*
+ * We try to avoid enabling the hardware if it's not
+ * there, but we don't know how to test. But we do know
+ * that the PC110 is not a PCI system. So if we find any
+ * PCI devices in the machine, we don't have a PC110.
+ */
+static int __init pc110pad_init(void)
+{
+ int err;
+
+ if (!no_pci_devices())
+ return -ENODEV;
+
+ if (!request_region(pc110pad_io, 4, "pc110pad")) {
+ printk(KERN_ERR "pc110pad: I/O area %#x-%#x in use.\n",
+ pc110pad_io, pc110pad_io + 4);
+ return -EBUSY;
+ }
+
+ outb(PC110PAD_OFF, pc110pad_io + 2);
+
+ if (request_irq(pc110pad_irq, pc110pad_interrupt, 0, "pc110pad", NULL)) {
+ printk(KERN_ERR "pc110pad: Unable to get irq %d.\n", pc110pad_irq);
+ err = -EBUSY;
+ goto err_release_region;
+ }
+
+ pc110pad_dev = input_allocate_device();
+ if (!pc110pad_dev) {
+ printk(KERN_ERR "pc110pad: Not enough memory.\n");
+ err = -ENOMEM;
+ goto err_free_irq;
+ }
+
+ pc110pad_dev->name = "IBM PC110 TouchPad";
+ pc110pad_dev->phys = "isa15e0/input0";
+ pc110pad_dev->id.bustype = BUS_ISA;
+ pc110pad_dev->id.vendor = 0x0003;
+ pc110pad_dev->id.product = 0x0001;
+ pc110pad_dev->id.version = 0x0100;
+
+ pc110pad_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
+ pc110pad_dev->absbit[0] = BIT_MASK(ABS_X) | BIT_MASK(ABS_Y);
+ pc110pad_dev->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH);
+
+ input_abs_set_max(pc110pad_dev, ABS_X, 0x1ff);
+ input_abs_set_max(pc110pad_dev, ABS_Y, 0x0ff);
+
+ pc110pad_dev->open = pc110pad_open;
+ pc110pad_dev->close = pc110pad_close;
+
+ err = input_register_device(pc110pad_dev);
+ if (err)
+ goto err_free_dev;
+
+ return 0;
+
+ err_free_dev:
+ input_free_device(pc110pad_dev);
+ err_free_irq:
+ free_irq(pc110pad_irq, NULL);
+ err_release_region:
+ release_region(pc110pad_io, 4);
+
+ return err;
+}
+
+static void __exit pc110pad_exit(void)
+{
+ outb(PC110PAD_OFF, pc110pad_io + 2);
+ free_irq(pc110pad_irq, NULL);
+ input_unregister_device(pc110pad_dev);
+ release_region(pc110pad_io, 4);
+}
+
+module_init(pc110pad_init);
+module_exit(pc110pad_exit);
diff --git a/drivers/input/mouse/psmouse-base.c b/drivers/input/mouse/psmouse-base.c
new file mode 100644
index 0000000..9f352fb
--- /dev/null
+++ b/drivers/input/mouse/psmouse-base.c
@@ -0,0 +1,1747 @@
+/*
+ * PS/2 mouse driver
+ *
+ * Copyright (c) 1999-2002 Vojtech Pavlik
+ * Copyright (c) 2003-2004 Dmitry Torokhov
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+#define psmouse_fmt(fmt) fmt
+
+#include <linux/delay.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/interrupt.h>
+#include <linux/input.h>
+#include <linux/serio.h>
+#include <linux/init.h>
+#include <linux/libps2.h>
+#include <linux/mutex.h>
+
+#include "psmouse.h"
+#include "synaptics.h"
+#include "logips2pp.h"
+#include "alps.h"
+#include "hgpk.h"
+#include "lifebook.h"
+#include "trackpoint.h"
+#include "touchkit_ps2.h"
+#include "elantech.h"
+#include "sentelic.h"
+
+#define DRIVER_DESC "PS/2 mouse driver"
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@suse.cz>");
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+static unsigned int psmouse_max_proto = PSMOUSE_AUTO;
+static int psmouse_set_maxproto(const char *val, const struct kernel_param *);
+static int psmouse_get_maxproto(char *buffer, const struct kernel_param *kp);
+static struct kernel_param_ops param_ops_proto_abbrev = {
+ .set = psmouse_set_maxproto,
+ .get = psmouse_get_maxproto,
+};
+#define param_check_proto_abbrev(name, p) __param_check(name, p, unsigned int)
+module_param_named(proto, psmouse_max_proto, proto_abbrev, 0644);
+MODULE_PARM_DESC(proto, "Highest protocol extension to probe (bare, imps, exps, any). Useful for KVM switches.");
+
+static unsigned int psmouse_resolution = 200;
+module_param_named(resolution, psmouse_resolution, uint, 0644);
+MODULE_PARM_DESC(resolution, "Resolution, in dpi.");
+
+static unsigned int psmouse_rate = 100;
+module_param_named(rate, psmouse_rate, uint, 0644);
+MODULE_PARM_DESC(rate, "Report rate, in reports per second.");
+
+static unsigned int psmouse_smartscroll = 1;
+module_param_named(smartscroll, psmouse_smartscroll, bool, 0644);
+MODULE_PARM_DESC(smartscroll, "Logitech Smartscroll autorepeat, 1 = enabled (default), 0 = disabled.");
+
+static unsigned int psmouse_resetafter = 5;
+module_param_named(resetafter, psmouse_resetafter, uint, 0644);
+MODULE_PARM_DESC(resetafter, "Reset device after so many bad packets (0 = never).");
+
+static unsigned int psmouse_resync_time;
+module_param_named(resync_time, psmouse_resync_time, uint, 0644);
+MODULE_PARM_DESC(resync_time, "How long can mouse stay idle before forcing resync (in seconds, 0 = never).");
+
+PSMOUSE_DEFINE_ATTR(protocol, S_IWUSR | S_IRUGO,
+ NULL,
+ psmouse_attr_show_protocol, psmouse_attr_set_protocol);
+PSMOUSE_DEFINE_ATTR(rate, S_IWUSR | S_IRUGO,
+ (void *) offsetof(struct psmouse, rate),
+ psmouse_show_int_attr, psmouse_attr_set_rate);
+PSMOUSE_DEFINE_ATTR(resolution, S_IWUSR | S_IRUGO,
+ (void *) offsetof(struct psmouse, resolution),
+ psmouse_show_int_attr, psmouse_attr_set_resolution);
+PSMOUSE_DEFINE_ATTR(resetafter, S_IWUSR | S_IRUGO,
+ (void *) offsetof(struct psmouse, resetafter),
+ psmouse_show_int_attr, psmouse_set_int_attr);
+PSMOUSE_DEFINE_ATTR(resync_time, S_IWUSR | S_IRUGO,
+ (void *) offsetof(struct psmouse, resync_time),
+ psmouse_show_int_attr, psmouse_set_int_attr);
+
+static struct attribute *psmouse_attributes[] = {
+ &psmouse_attr_protocol.dattr.attr,
+ &psmouse_attr_rate.dattr.attr,
+ &psmouse_attr_resolution.dattr.attr,
+ &psmouse_attr_resetafter.dattr.attr,
+ &psmouse_attr_resync_time.dattr.attr,
+ NULL
+};
+
+static struct attribute_group psmouse_attribute_group = {
+ .attrs = psmouse_attributes,
+};
+
+/*
+ * psmouse_mutex protects all operations changing state of mouse
+ * (connecting, disconnecting, changing rate or resolution via
+ * sysfs). We could use a per-device semaphore but since there
+ * rarely more than one PS/2 mouse connected and since semaphore
+ * is taken in "slow" paths it is not worth it.
+ */
+static DEFINE_MUTEX(psmouse_mutex);
+
+static struct workqueue_struct *kpsmoused_wq;
+
+struct psmouse_protocol {
+ enum psmouse_type type;
+ bool maxproto;
+ bool ignore_parity; /* Protocol should ignore parity errors from KBC */
+ const char *name;
+ const char *alias;
+ int (*detect)(struct psmouse *, bool);
+ int (*init)(struct psmouse *);
+};
+
+/*
+ * psmouse_process_byte() analyzes the PS/2 data stream and reports
+ * relevant events to the input module once full packet has arrived.
+ */
+
+static psmouse_ret_t psmouse_process_byte(struct psmouse *psmouse)
+{
+ struct input_dev *dev = psmouse->dev;
+ unsigned char *packet = psmouse->packet;
+
+ if (psmouse->pktcnt < psmouse->pktsize)
+ return PSMOUSE_GOOD_DATA;
+
+/*
+ * Full packet accumulated, process it
+ */
+
+/*
+ * Scroll wheel on IntelliMice, scroll buttons on NetMice
+ */
+
+ if (psmouse->type == PSMOUSE_IMPS || psmouse->type == PSMOUSE_GENPS)
+ input_report_rel(dev, REL_WHEEL, -(signed char) packet[3]);
+
+/*
+ * Scroll wheel and buttons on IntelliMouse Explorer
+ */
+
+ if (psmouse->type == PSMOUSE_IMEX) {
+ switch (packet[3] & 0xC0) {
+ case 0x80: /* vertical scroll on IntelliMouse Explorer 4.0 */
+ input_report_rel(dev, REL_WHEEL, (int) (packet[3] & 32) - (int) (packet[3] & 31));
+ break;
+ case 0x40: /* horizontal scroll on IntelliMouse Explorer 4.0 */
+ input_report_rel(dev, REL_HWHEEL, (int) (packet[3] & 32) - (int) (packet[3] & 31));
+ break;
+ case 0x00:
+ case 0xC0:
+ input_report_rel(dev, REL_WHEEL, (int) (packet[3] & 8) - (int) (packet[3] & 7));
+ input_report_key(dev, BTN_SIDE, (packet[3] >> 4) & 1);
+ input_report_key(dev, BTN_EXTRA, (packet[3] >> 5) & 1);
+ break;
+ }
+ }
+
+/*
+ * Extra buttons on Genius NewNet 3D
+ */
+
+ if (psmouse->type == PSMOUSE_GENPS) {
+ input_report_key(dev, BTN_SIDE, (packet[0] >> 6) & 1);
+ input_report_key(dev, BTN_EXTRA, (packet[0] >> 7) & 1);
+ }
+
+/*
+ * Extra button on ThinkingMouse
+ */
+ if (psmouse->type == PSMOUSE_THINKPS) {
+ input_report_key(dev, BTN_EXTRA, (packet[0] >> 3) & 1);
+ /* Without this bit of weirdness moving up gives wildly high Y changes. */
+ packet[1] |= (packet[0] & 0x40) << 1;
+ }
+
+/*
+ * Cortron PS2 Trackball reports SIDE button on the 4th bit of the first
+ * byte.
+ */
+ if (psmouse->type == PSMOUSE_CORTRON) {
+ input_report_key(dev, BTN_SIDE, (packet[0] >> 3) & 1);
+ packet[0] |= 0x08;
+ }
+
+/*
+ * Generic PS/2 Mouse
+ */
+
+ input_report_key(dev, BTN_LEFT, packet[0] & 1);
+ input_report_key(dev, BTN_MIDDLE, (packet[0] >> 2) & 1);
+ input_report_key(dev, BTN_RIGHT, (packet[0] >> 1) & 1);
+
+ input_report_rel(dev, REL_X, packet[1] ? (int) packet[1] - (int) ((packet[0] << 4) & 0x100) : 0);
+ input_report_rel(dev, REL_Y, packet[2] ? (int) ((packet[0] << 3) & 0x100) - (int) packet[2] : 0);
+
+ input_sync(dev);
+
+ return PSMOUSE_FULL_PACKET;
+}
+
+void psmouse_queue_work(struct psmouse *psmouse, struct delayed_work *work,
+ unsigned long delay)
+{
+ queue_delayed_work(kpsmoused_wq, work, delay);
+}
+
+/*
+ * __psmouse_set_state() sets new psmouse state and resets all flags.
+ */
+
+static inline void __psmouse_set_state(struct psmouse *psmouse, enum psmouse_state new_state)
+{
+ psmouse->state = new_state;
+ psmouse->pktcnt = psmouse->out_of_sync_cnt = 0;
+ psmouse->ps2dev.flags = 0;
+ psmouse->last = jiffies;
+}
+
+
+/*
+ * psmouse_set_state() sets new psmouse state and resets all flags and
+ * counters while holding serio lock so fighting with interrupt handler
+ * is not a concern.
+ */
+
+void psmouse_set_state(struct psmouse *psmouse, enum psmouse_state new_state)
+{
+ serio_pause_rx(psmouse->ps2dev.serio);
+ __psmouse_set_state(psmouse, new_state);
+ serio_continue_rx(psmouse->ps2dev.serio);
+}
+
+/*
+ * psmouse_handle_byte() processes one byte of the input data stream
+ * by calling corresponding protocol handler.
+ */
+
+static int psmouse_handle_byte(struct psmouse *psmouse)
+{
+ psmouse_ret_t rc = psmouse->protocol_handler(psmouse);
+
+ switch (rc) {
+ case PSMOUSE_BAD_DATA:
+ if (psmouse->state == PSMOUSE_ACTIVATED) {
+ psmouse_warn(psmouse,
+ "%s at %s lost sync at byte %d\n",
+ psmouse->name, psmouse->phys,
+ psmouse->pktcnt);
+ if (++psmouse->out_of_sync_cnt == psmouse->resetafter) {
+ __psmouse_set_state(psmouse, PSMOUSE_IGNORE);
+ psmouse_notice(psmouse,
+ "issuing reconnect request\n");
+ serio_reconnect(psmouse->ps2dev.serio);
+ return -1;
+ }
+ }
+ psmouse->pktcnt = 0;
+ break;
+
+ case PSMOUSE_FULL_PACKET:
+ psmouse->pktcnt = 0;
+ if (psmouse->out_of_sync_cnt) {
+ psmouse->out_of_sync_cnt = 0;
+ psmouse_notice(psmouse,
+ "%s at %s - driver resynced.\n",
+ psmouse->name, psmouse->phys);
+ }
+ break;
+
+ case PSMOUSE_GOOD_DATA:
+ break;
+ }
+ return 0;
+}
+
+/*
+ * psmouse_interrupt() handles incoming characters, either passing them
+ * for normal processing or gathering them as command response.
+ */
+
+static irqreturn_t psmouse_interrupt(struct serio *serio,
+ unsigned char data, unsigned int flags)
+{
+ struct psmouse *psmouse = serio_get_drvdata(serio);
+
+ if (psmouse->state == PSMOUSE_IGNORE)
+ goto out;
+
+ if (unlikely((flags & SERIO_TIMEOUT) ||
+ ((flags & SERIO_PARITY) && !psmouse->ignore_parity))) {
+
+ if (psmouse->state == PSMOUSE_ACTIVATED)
+ psmouse_warn(psmouse,
+ "bad data from KBC -%s%s\n",
+ flags & SERIO_TIMEOUT ? " timeout" : "",
+ flags & SERIO_PARITY ? " bad parity" : "");
+ ps2_cmd_aborted(&psmouse->ps2dev);
+ goto out;
+ }
+
+ if (unlikely(psmouse->ps2dev.flags & PS2_FLAG_ACK))
+ if (ps2_handle_ack(&psmouse->ps2dev, data))
+ goto out;
+
+ if (unlikely(psmouse->ps2dev.flags & PS2_FLAG_CMD))
+ if (ps2_handle_response(&psmouse->ps2dev, data))
+ goto out;
+
+ if (psmouse->state <= PSMOUSE_RESYNCING)
+ goto out;
+
+ if (psmouse->state == PSMOUSE_ACTIVATED &&
+ psmouse->pktcnt && time_after(jiffies, psmouse->last + HZ/2)) {
+ psmouse_info(psmouse, "%s at %s lost synchronization, throwing %d bytes away.\n",
+ psmouse->name, psmouse->phys, psmouse->pktcnt);
+ psmouse->badbyte = psmouse->packet[0];
+ __psmouse_set_state(psmouse, PSMOUSE_RESYNCING);
+ psmouse_queue_work(psmouse, &psmouse->resync_work, 0);
+ goto out;
+ }
+
+ psmouse->packet[psmouse->pktcnt++] = data;
+/*
+ * Check if this is a new device announcement (0xAA 0x00)
+ */
+ if (unlikely(psmouse->packet[0] == PSMOUSE_RET_BAT && psmouse->pktcnt <= 2)) {
+ if (psmouse->pktcnt == 1) {
+ psmouse->last = jiffies;
+ goto out;
+ }
+
+ if (psmouse->packet[1] == PSMOUSE_RET_ID ||
+ (psmouse->type == PSMOUSE_HGPK &&
+ psmouse->packet[1] == PSMOUSE_RET_BAT)) {
+ __psmouse_set_state(psmouse, PSMOUSE_IGNORE);
+ serio_reconnect(serio);
+ goto out;
+ }
+/*
+ * Not a new device, try processing first byte normally
+ */
+ psmouse->pktcnt = 1;
+ if (psmouse_handle_byte(psmouse))
+ goto out;
+
+ psmouse->packet[psmouse->pktcnt++] = data;
+ }
+
+/*
+ * See if we need to force resync because mouse was idle for too long
+ */
+ if (psmouse->state == PSMOUSE_ACTIVATED &&
+ psmouse->pktcnt == 1 && psmouse->resync_time &&
+ time_after(jiffies, psmouse->last + psmouse->resync_time * HZ)) {
+ psmouse->badbyte = psmouse->packet[0];
+ __psmouse_set_state(psmouse, PSMOUSE_RESYNCING);
+ psmouse_queue_work(psmouse, &psmouse->resync_work, 0);
+ goto out;
+ }
+
+ psmouse->last = jiffies;
+ psmouse_handle_byte(psmouse);
+
+ out:
+ return IRQ_HANDLED;
+}
+
+
+/*
+ * psmouse_sliced_command() sends an extended PS/2 command to the mouse
+ * using sliced syntax, understood by advanced devices, such as Logitech
+ * or Synaptics touchpads. The command is encoded as:
+ * 0xE6 0xE8 rr 0xE8 ss 0xE8 tt 0xE8 uu where (rr*64)+(ss*16)+(tt*4)+uu
+ * is the command.
+ */
+int psmouse_sliced_command(struct psmouse *psmouse, unsigned char command)
+{
+ int i;
+
+ if (ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETSCALE11))
+ return -1;
+
+ for (i = 6; i >= 0; i -= 2) {
+ unsigned char d = (command >> i) & 3;
+ if (ps2_command(&psmouse->ps2dev, &d, PSMOUSE_CMD_SETRES))
+ return -1;
+ }
+
+ return 0;
+}
+
+
+/*
+ * psmouse_reset() resets the mouse into power-on state.
+ */
+int psmouse_reset(struct psmouse *psmouse)
+{
+ unsigned char param[2];
+
+ if (ps2_command(&psmouse->ps2dev, param, PSMOUSE_CMD_RESET_BAT))
+ return -1;
+
+ if (param[0] != PSMOUSE_RET_BAT && param[1] != PSMOUSE_RET_ID)
+ return -1;
+
+ return 0;
+}
+
+
+/*
+ * Genius NetMouse magic init.
+ */
+static int genius_detect(struct psmouse *psmouse, bool set_properties)
+{
+ struct ps2dev *ps2dev = &psmouse->ps2dev;
+ unsigned char param[4];
+
+ param[0] = 3;
+ ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES);
+ ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11);
+ ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11);
+ ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11);
+ ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO);
+
+ if (param[0] != 0x00 || param[1] != 0x33 || param[2] != 0x55)
+ return -1;
+
+ if (set_properties) {
+ __set_bit(BTN_MIDDLE, psmouse->dev->keybit);
+ __set_bit(BTN_EXTRA, psmouse->dev->keybit);
+ __set_bit(BTN_SIDE, psmouse->dev->keybit);
+ __set_bit(REL_WHEEL, psmouse->dev->relbit);
+
+ psmouse->vendor = "Genius";
+ psmouse->name = "Mouse";
+ psmouse->pktsize = 4;
+ }
+
+ return 0;
+}
+
+/*
+ * IntelliMouse magic init.
+ */
+static int intellimouse_detect(struct psmouse *psmouse, bool set_properties)
+{
+ struct ps2dev *ps2dev = &psmouse->ps2dev;
+ unsigned char param[2];
+
+ param[0] = 200;
+ ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE);
+ param[0] = 100;
+ ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE);
+ param[0] = 80;
+ ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE);
+ ps2_command(ps2dev, param, PSMOUSE_CMD_GETID);
+
+ if (param[0] != 3)
+ return -1;
+
+ if (set_properties) {
+ __set_bit(BTN_MIDDLE, psmouse->dev->keybit);
+ __set_bit(REL_WHEEL, psmouse->dev->relbit);
+
+ if (!psmouse->vendor)
+ psmouse->vendor = "Generic";
+ if (!psmouse->name)
+ psmouse->name = "Wheel Mouse";
+ psmouse->pktsize = 4;
+ }
+
+ return 0;
+}
+
+/*
+ * Try IntelliMouse/Explorer magic init.
+ */
+static int im_explorer_detect(struct psmouse *psmouse, bool set_properties)
+{
+ struct ps2dev *ps2dev = &psmouse->ps2dev;
+ unsigned char param[2];
+
+ intellimouse_detect(psmouse, 0);
+
+ param[0] = 200;
+ ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE);
+ param[0] = 200;
+ ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE);
+ param[0] = 80;
+ ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE);
+ ps2_command(ps2dev, param, PSMOUSE_CMD_GETID);
+
+ if (param[0] != 4)
+ return -1;
+
+/* Magic to enable horizontal scrolling on IntelliMouse 4.0 */
+ param[0] = 200;
+ ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE);
+ param[0] = 80;
+ ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE);
+ param[0] = 40;
+ ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE);
+
+ if (set_properties) {
+ __set_bit(BTN_MIDDLE, psmouse->dev->keybit);
+ __set_bit(REL_WHEEL, psmouse->dev->relbit);
+ __set_bit(REL_HWHEEL, psmouse->dev->relbit);
+ __set_bit(BTN_SIDE, psmouse->dev->keybit);
+ __set_bit(BTN_EXTRA, psmouse->dev->keybit);
+
+ if (!psmouse->vendor)
+ psmouse->vendor = "Generic";
+ if (!psmouse->name)
+ psmouse->name = "Explorer Mouse";
+ psmouse->pktsize = 4;
+ }
+
+ return 0;
+}
+
+/*
+ * Kensington ThinkingMouse / ExpertMouse magic init.
+ */
+static int thinking_detect(struct psmouse *psmouse, bool set_properties)
+{
+ struct ps2dev *ps2dev = &psmouse->ps2dev;
+ unsigned char param[2];
+ static const unsigned char seq[] = { 20, 60, 40, 20, 20, 60, 40, 20, 20 };
+ int i;
+
+ param[0] = 10;
+ ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE);
+ param[0] = 0;
+ ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES);
+ for (i = 0; i < ARRAY_SIZE(seq); i++) {
+ param[0] = seq[i];
+ ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE);
+ }
+ ps2_command(ps2dev, param, PSMOUSE_CMD_GETID);
+
+ if (param[0] != 2)
+ return -1;
+
+ if (set_properties) {
+ __set_bit(BTN_MIDDLE, psmouse->dev->keybit);
+ __set_bit(BTN_EXTRA, psmouse->dev->keybit);
+
+ psmouse->vendor = "Kensington";
+ psmouse->name = "ThinkingMouse";
+ }
+
+ return 0;
+}
+
+/*
+ * Bare PS/2 protocol "detection". Always succeeds.
+ */
+static int ps2bare_detect(struct psmouse *psmouse, bool set_properties)
+{
+ if (set_properties) {
+ if (!psmouse->vendor)
+ psmouse->vendor = "Generic";
+ if (!psmouse->name)
+ psmouse->name = "Mouse";
+
+/*
+ * We have no way of figuring true number of buttons so let's
+ * assume that the device has 3.
+ */
+ __set_bit(BTN_MIDDLE, psmouse->dev->keybit);
+ }
+
+ return 0;
+}
+
+/*
+ * Cortron PS/2 protocol detection. There's no special way to detect it, so it
+ * must be forced by sysfs protocol writing.
+ */
+static int cortron_detect(struct psmouse *psmouse, bool set_properties)
+{
+ if (set_properties) {
+ psmouse->vendor = "Cortron";
+ psmouse->name = "PS/2 Trackball";
+
+ __set_bit(BTN_MIDDLE, psmouse->dev->keybit);
+ __set_bit(BTN_SIDE, psmouse->dev->keybit);
+ }
+
+ return 0;
+}
+
+/*
+ * psmouse_extensions() probes for any extensions to the basic PS/2 protocol
+ * the mouse may have.
+ */
+
+static int psmouse_extensions(struct psmouse *psmouse,
+ unsigned int max_proto, bool set_properties)
+{
+ bool synaptics_hardware = false;
+
+/*
+ * We always check for lifebook because it does not disturb mouse
+ * (it only checks DMI information).
+ */
+ if (lifebook_detect(psmouse, set_properties) == 0) {
+ if (max_proto > PSMOUSE_IMEX) {
+ if (!set_properties || lifebook_init(psmouse) == 0)
+ return PSMOUSE_LIFEBOOK;
+ }
+ }
+
+/*
+ * Try Kensington ThinkingMouse (we try first, because synaptics probe
+ * upsets the thinkingmouse).
+ */
+
+ if (max_proto > PSMOUSE_IMEX && thinking_detect(psmouse, set_properties) == 0)
+ return PSMOUSE_THINKPS;
+
+/*
+ * Try Synaptics TouchPad. Note that probing is done even if Synaptics protocol
+ * support is disabled in config - we need to know if it is synaptics so we
+ * can reset it properly after probing for intellimouse.
+ */
+ if (max_proto > PSMOUSE_PS2 && synaptics_detect(psmouse, set_properties) == 0) {
+ synaptics_hardware = true;
+
+ if (max_proto > PSMOUSE_IMEX) {
+/*
+ * Try activating protocol, but check if support is enabled first, since
+ * we try detecting Synaptics even when protocol is disabled.
+ */
+ if (synaptics_supported() &&
+ (!set_properties || synaptics_init(psmouse) == 0)) {
+ return PSMOUSE_SYNAPTICS;
+ }
+
+/*
+ * Some Synaptics touchpads can emulate extended protocols (like IMPS/2).
+ * Unfortunately Logitech/Genius probes confuse some firmware versions so
+ * we'll have to skip them.
+ */
+ max_proto = PSMOUSE_IMEX;
+ }
+/*
+ * Make sure that touchpad is in relative mode, gestures (taps) are enabled
+ */
+ synaptics_reset(psmouse);
+ }
+
+/*
+ * Try ALPS TouchPad
+ */
+ if (max_proto > PSMOUSE_IMEX) {
+ ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_RESET_DIS);
+ if (alps_detect(psmouse, set_properties) == 0) {
+ if (!set_properties || alps_init(psmouse) == 0)
+ return PSMOUSE_ALPS;
+/*
+ * Init failed, try basic relative protocols
+ */
+ max_proto = PSMOUSE_IMEX;
+ }
+ }
+
+/*
+ * Try OLPC HGPK touchpad.
+ */
+ if (max_proto > PSMOUSE_IMEX &&
+ hgpk_detect(psmouse, set_properties) == 0) {
+ if (!set_properties || hgpk_init(psmouse) == 0)
+ return PSMOUSE_HGPK;
+/*
+ * Init failed, try basic relative protocols
+ */
+ max_proto = PSMOUSE_IMEX;
+ }
+
+/*
+ * Try Elantech touchpad.
+ */
+ if (max_proto > PSMOUSE_IMEX &&
+ elantech_detect(psmouse, set_properties) == 0) {
+ if (!set_properties || elantech_init(psmouse) == 0)
+ return PSMOUSE_ELANTECH;
+/*
+ * Init failed, try basic relative protocols
+ */
+ max_proto = PSMOUSE_IMEX;
+ }
+
+
+ if (max_proto > PSMOUSE_IMEX) {
+ if (genius_detect(psmouse, set_properties) == 0)
+ return PSMOUSE_GENPS;
+
+ if (ps2pp_init(psmouse, set_properties) == 0)
+ return PSMOUSE_PS2PP;
+
+ if (trackpoint_detect(psmouse, set_properties) == 0)
+ return PSMOUSE_TRACKPOINT;
+
+ if (touchkit_ps2_detect(psmouse, set_properties) == 0)
+ return PSMOUSE_TOUCHKIT_PS2;
+ }
+
+/*
+ * Try Finger Sensing Pad. We do it here because its probe upsets
+ * Trackpoint devices (causing TP_READ_ID command to time out).
+ */
+ if (max_proto > PSMOUSE_IMEX) {
+ if (fsp_detect(psmouse, set_properties) == 0) {
+ if (!set_properties || fsp_init(psmouse) == 0)
+ return PSMOUSE_FSP;
+/*
+ * Init failed, try basic relative protocols
+ */
+ max_proto = PSMOUSE_IMEX;
+ }
+ }
+
+/*
+ * Reset to defaults in case the device got confused by extended
+ * protocol probes. Note that we follow up with full reset because
+ * some mice put themselves to sleep when they see PSMOUSE_RESET_DIS.
+ */
+ ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_RESET_DIS);
+ psmouse_reset(psmouse);
+
+ if (max_proto >= PSMOUSE_IMEX && im_explorer_detect(psmouse, set_properties) == 0)
+ return PSMOUSE_IMEX;
+
+ if (max_proto >= PSMOUSE_IMPS && intellimouse_detect(psmouse, set_properties) == 0)
+ return PSMOUSE_IMPS;
+
+/*
+ * Okay, all failed, we have a standard mouse here. The number of the buttons
+ * is still a question, though. We assume 3.
+ */
+ ps2bare_detect(psmouse, set_properties);
+
+ if (synaptics_hardware) {
+/*
+ * We detected Synaptics hardware but it did not respond to IMPS/2 probes.
+ * We need to reset the touchpad because if there is a track point on the
+ * pass through port it could get disabled while probing for protocol
+ * extensions.
+ */
+ psmouse_reset(psmouse);
+ }
+
+ return PSMOUSE_PS2;
+}
+
+static const struct psmouse_protocol psmouse_protocols[] = {
+ {
+ .type = PSMOUSE_PS2,
+ .name = "PS/2",
+ .alias = "bare",
+ .maxproto = true,
+ .ignore_parity = true,
+ .detect = ps2bare_detect,
+ },
+#ifdef CONFIG_MOUSE_PS2_LOGIPS2PP
+ {
+ .type = PSMOUSE_PS2PP,
+ .name = "PS2++",
+ .alias = "logitech",
+ .detect = ps2pp_init,
+ },
+#endif
+ {
+ .type = PSMOUSE_THINKPS,
+ .name = "ThinkPS/2",
+ .alias = "thinkps",
+ .detect = thinking_detect,
+ },
+ {
+ .type = PSMOUSE_GENPS,
+ .name = "GenPS/2",
+ .alias = "genius",
+ .detect = genius_detect,
+ },
+ {
+ .type = PSMOUSE_IMPS,
+ .name = "ImPS/2",
+ .alias = "imps",
+ .maxproto = true,
+ .ignore_parity = true,
+ .detect = intellimouse_detect,
+ },
+ {
+ .type = PSMOUSE_IMEX,
+ .name = "ImExPS/2",
+ .alias = "exps",
+ .maxproto = true,
+ .ignore_parity = true,
+ .detect = im_explorer_detect,
+ },
+#ifdef CONFIG_MOUSE_PS2_SYNAPTICS
+ {
+ .type = PSMOUSE_SYNAPTICS,
+ .name = "SynPS/2",
+ .alias = "synaptics",
+ .detect = synaptics_detect,
+ .init = synaptics_init,
+ },
+#endif
+#ifdef CONFIG_MOUSE_PS2_ALPS
+ {
+ .type = PSMOUSE_ALPS,
+ .name = "AlpsPS/2",
+ .alias = "alps",
+ .detect = alps_detect,
+ .init = alps_init,
+ },
+#endif
+#ifdef CONFIG_MOUSE_PS2_LIFEBOOK
+ {
+ .type = PSMOUSE_LIFEBOOK,
+ .name = "LBPS/2",
+ .alias = "lifebook",
+ .init = lifebook_init,
+ },
+#endif
+#ifdef CONFIG_MOUSE_PS2_TRACKPOINT
+ {
+ .type = PSMOUSE_TRACKPOINT,
+ .name = "TPPS/2",
+ .alias = "trackpoint",
+ .detect = trackpoint_detect,
+ },
+#endif
+#ifdef CONFIG_MOUSE_PS2_TOUCHKIT
+ {
+ .type = PSMOUSE_TOUCHKIT_PS2,
+ .name = "touchkitPS/2",
+ .alias = "touchkit",
+ .detect = touchkit_ps2_detect,
+ },
+#endif
+#ifdef CONFIG_MOUSE_PS2_OLPC
+ {
+ .type = PSMOUSE_HGPK,
+ .name = "OLPC HGPK",
+ .alias = "hgpk",
+ .detect = hgpk_detect,
+ },
+#endif
+#ifdef CONFIG_MOUSE_PS2_ELANTECH
+ {
+ .type = PSMOUSE_ELANTECH,
+ .name = "ETPS/2",
+ .alias = "elantech",
+ .detect = elantech_detect,
+ .init = elantech_init,
+ },
+#endif
+#ifdef CONFIG_MOUSE_PS2_SENTELIC
+ {
+ .type = PSMOUSE_FSP,
+ .name = "FSPPS/2",
+ .alias = "fsp",
+ .detect = fsp_detect,
+ .init = fsp_init,
+ },
+#endif
+ {
+ .type = PSMOUSE_CORTRON,
+ .name = "CortronPS/2",
+ .alias = "cortps",
+ .detect = cortron_detect,
+ },
+ {
+ .type = PSMOUSE_AUTO,
+ .name = "auto",
+ .alias = "any",
+ .maxproto = true,
+ },
+};
+
+static const struct psmouse_protocol *psmouse_protocol_by_type(enum psmouse_type type)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(psmouse_protocols); i++)
+ if (psmouse_protocols[i].type == type)
+ return &psmouse_protocols[i];
+
+ WARN_ON(1);
+ return &psmouse_protocols[0];
+}
+
+static const struct psmouse_protocol *psmouse_protocol_by_name(const char *name, size_t len)
+{
+ const struct psmouse_protocol *p;
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(psmouse_protocols); i++) {
+ p = &psmouse_protocols[i];
+
+ if ((strlen(p->name) == len && !strncmp(p->name, name, len)) ||
+ (strlen(p->alias) == len && !strncmp(p->alias, name, len)))
+ return &psmouse_protocols[i];
+ }
+
+ return NULL;
+}
+
+
+/*
+ * psmouse_probe() probes for a PS/2 mouse.
+ */
+
+static int psmouse_probe(struct psmouse *psmouse)
+{
+ struct ps2dev *ps2dev = &psmouse->ps2dev;
+ unsigned char param[2];
+
+/*
+ * First, we check if it's a mouse. It should send 0x00 or 0x03
+ * in case of an IntelliMouse in 4-byte mode or 0x04 for IM Explorer.
+ * Sunrex K8561 IR Keyboard/Mouse reports 0xff on second and subsequent
+ * ID queries, probably due to a firmware bug.
+ */
+
+ param[0] = 0xa5;
+ if (ps2_command(ps2dev, param, PSMOUSE_CMD_GETID))
+ return -1;
+
+ if (param[0] != 0x00 && param[0] != 0x03 &&
+ param[0] != 0x04 && param[0] != 0xff)
+ return -1;
+
+/*
+ * Then we reset and disable the mouse so that it doesn't generate events.
+ */
+
+ if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_RESET_DIS))
+ psmouse_warn(psmouse, "Failed to reset mouse on %s\n",
+ ps2dev->serio->phys);
+
+ return 0;
+}
+
+/*
+ * Here we set the mouse resolution.
+ */
+
+void psmouse_set_resolution(struct psmouse *psmouse, unsigned int resolution)
+{
+ static const unsigned char params[] = { 0, 1, 2, 2, 3 };
+ unsigned char p;
+
+ if (resolution == 0 || resolution > 200)
+ resolution = 200;
+
+ p = params[resolution / 50];
+ ps2_command(&psmouse->ps2dev, &p, PSMOUSE_CMD_SETRES);
+ psmouse->resolution = 25 << p;
+}
+
+/*
+ * Here we set the mouse report rate.
+ */
+
+static void psmouse_set_rate(struct psmouse *psmouse, unsigned int rate)
+{
+ static const unsigned char rates[] = { 200, 100, 80, 60, 40, 20, 10, 0 };
+ unsigned char r;
+ int i = 0;
+
+ while (rates[i] > rate) i++;
+ r = rates[i];
+ ps2_command(&psmouse->ps2dev, &r, PSMOUSE_CMD_SETRATE);
+ psmouse->rate = r;
+}
+
+/*
+ * psmouse_initialize() initializes the mouse to a sane state.
+ */
+
+static void psmouse_initialize(struct psmouse *psmouse)
+{
+/*
+ * We set the mouse report rate, resolution and scaling.
+ */
+
+ if (psmouse_max_proto != PSMOUSE_PS2) {
+ psmouse->set_rate(psmouse, psmouse->rate);
+ psmouse->set_resolution(psmouse, psmouse->resolution);
+ ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETSCALE11);
+ }
+}
+
+/*
+ * psmouse_activate() enables the mouse so that we get motion reports from it.
+ */
+
+static void psmouse_activate(struct psmouse *psmouse)
+{
+ if (ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_ENABLE))
+ psmouse_warn(psmouse, "Failed to enable mouse on %s\n",
+ psmouse->ps2dev.serio->phys);
+
+ psmouse_set_state(psmouse, PSMOUSE_ACTIVATED);
+}
+
+
+/*
+ * psmouse_deactivate() puts the mouse into poll mode so that we don't get motion
+ * reports from it unless we explicitly request it.
+ */
+
+static void psmouse_deactivate(struct psmouse *psmouse)
+{
+ if (ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_DISABLE))
+ psmouse_warn(psmouse, "Failed to deactivate mouse on %s\n",
+ psmouse->ps2dev.serio->phys);
+
+ psmouse_set_state(psmouse, PSMOUSE_CMD_MODE);
+}
+
+/*
+ * psmouse_poll() - default poll handler. Everyone except for ALPS uses it.
+ */
+
+static int psmouse_poll(struct psmouse *psmouse)
+{
+ return ps2_command(&psmouse->ps2dev, psmouse->packet,
+ PSMOUSE_CMD_POLL | (psmouse->pktsize << 8));
+}
+
+
+/*
+ * psmouse_resync() attempts to re-validate current protocol.
+ */
+
+static void psmouse_resync(struct work_struct *work)
+{
+ struct psmouse *parent = NULL, *psmouse =
+ container_of(work, struct psmouse, resync_work.work);
+ struct serio *serio = psmouse->ps2dev.serio;
+ psmouse_ret_t rc = PSMOUSE_GOOD_DATA;
+ bool failed = false, enabled = false;
+ int i;
+
+ mutex_lock(&psmouse_mutex);
+
+ if (psmouse->state != PSMOUSE_RESYNCING)
+ goto out;
+
+ if (serio->parent && serio->id.type == SERIO_PS_PSTHRU) {
+ parent = serio_get_drvdata(serio->parent);
+ psmouse_deactivate(parent);
+ }
+
+/*
+ * Some mice don't ACK commands sent while they are in the middle of
+ * transmitting motion packet. To avoid delay we use ps2_sendbyte()
+ * instead of ps2_command() which would wait for 200ms for an ACK
+ * that may never come.
+ * As an additional quirk ALPS touchpads may not only forget to ACK
+ * disable command but will stop reporting taps, so if we see that
+ * mouse at least once ACKs disable we will do full reconnect if ACK
+ * is missing.
+ */
+ psmouse->num_resyncs++;
+
+ if (ps2_sendbyte(&psmouse->ps2dev, PSMOUSE_CMD_DISABLE, 20)) {
+ if (psmouse->num_resyncs < 3 || psmouse->acks_disable_command)
+ failed = true;
+ } else
+ psmouse->acks_disable_command = true;
+
+/*
+ * Poll the mouse. If it was reset the packet will be shorter than
+ * psmouse->pktsize and ps2_command will fail. We do not expect and
+ * do not handle scenario when mouse "upgrades" its protocol while
+ * disconnected since it would require additional delay. If we ever
+ * see a mouse that does it we'll adjust the code.
+ */
+ if (!failed) {
+ if (psmouse->poll(psmouse))
+ failed = true;
+ else {
+ psmouse_set_state(psmouse, PSMOUSE_CMD_MODE);
+ for (i = 0; i < psmouse->pktsize; i++) {
+ psmouse->pktcnt++;
+ rc = psmouse->protocol_handler(psmouse);
+ if (rc != PSMOUSE_GOOD_DATA)
+ break;
+ }
+ if (rc != PSMOUSE_FULL_PACKET)
+ failed = true;
+ psmouse_set_state(psmouse, PSMOUSE_RESYNCING);
+ }
+ }
+/*
+ * Now try to enable mouse. We try to do that even if poll failed and also
+ * repeat our attempts 5 times, otherwise we may be left out with disabled
+ * mouse.
+ */
+ for (i = 0; i < 5; i++) {
+ if (!ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_ENABLE)) {
+ enabled = true;
+ break;
+ }
+ msleep(200);
+ }
+
+ if (!enabled) {
+ psmouse_warn(psmouse, "failed to re-enable mouse on %s\n",
+ psmouse->ps2dev.serio->phys);
+ failed = true;
+ }
+
+ if (failed) {
+ psmouse_set_state(psmouse, PSMOUSE_IGNORE);
+ psmouse_info(psmouse,
+ "resync failed, issuing reconnect request\n");
+ serio_reconnect(serio);
+ } else
+ psmouse_set_state(psmouse, PSMOUSE_ACTIVATED);
+
+ if (parent)
+ psmouse_activate(parent);
+ out:
+ mutex_unlock(&psmouse_mutex);
+}
+
+/*
+ * psmouse_cleanup() resets the mouse into power-on state.
+ */
+
+static void psmouse_cleanup(struct serio *serio)
+{
+ struct psmouse *psmouse = serio_get_drvdata(serio);
+ struct psmouse *parent = NULL;
+
+ mutex_lock(&psmouse_mutex);
+
+ if (serio->parent && serio->id.type == SERIO_PS_PSTHRU) {
+ parent = serio_get_drvdata(serio->parent);
+ psmouse_deactivate(parent);
+ }
+
+ psmouse_set_state(psmouse, PSMOUSE_INITIALIZING);
+
+ /*
+ * Disable stream mode so cleanup routine can proceed undisturbed.
+ */
+ if (ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_DISABLE))
+ psmouse_warn(psmouse, "Failed to disable mouse on %s\n",
+ psmouse->ps2dev.serio->phys);
+
+ if (psmouse->cleanup)
+ psmouse->cleanup(psmouse);
+
+/*
+ * Reset the mouse to defaults (bare PS/2 protocol).
+ */
+ ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_RESET_DIS);
+
+/*
+ * Some boxes, such as HP nx7400, get terribly confused if mouse
+ * is not fully enabled before suspending/shutting down.
+ */
+ ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_ENABLE);
+
+ if (parent) {
+ if (parent->pt_deactivate)
+ parent->pt_deactivate(parent);
+
+ psmouse_activate(parent);
+ }
+
+ mutex_unlock(&psmouse_mutex);
+}
+
+/*
+ * psmouse_disconnect() closes and frees.
+ */
+
+static void psmouse_disconnect(struct serio *serio)
+{
+ struct psmouse *psmouse, *parent = NULL;
+
+ psmouse = serio_get_drvdata(serio);
+
+ sysfs_remove_group(&serio->dev.kobj, &psmouse_attribute_group);
+
+ mutex_lock(&psmouse_mutex);
+
+ psmouse_set_state(psmouse, PSMOUSE_CMD_MODE);
+
+ /* make sure we don't have a resync in progress */
+ mutex_unlock(&psmouse_mutex);
+ flush_workqueue(kpsmoused_wq);
+ mutex_lock(&psmouse_mutex);
+
+ if (serio->parent && serio->id.type == SERIO_PS_PSTHRU) {
+ parent = serio_get_drvdata(serio->parent);
+ psmouse_deactivate(parent);
+ }
+
+ if (psmouse->disconnect)
+ psmouse->disconnect(psmouse);
+
+ if (parent && parent->pt_deactivate)
+ parent->pt_deactivate(parent);
+
+ psmouse_set_state(psmouse, PSMOUSE_IGNORE);
+
+ serio_close(serio);
+ serio_set_drvdata(serio, NULL);
+ input_unregister_device(psmouse->dev);
+ kfree(psmouse);
+
+ if (parent)
+ psmouse_activate(parent);
+
+ mutex_unlock(&psmouse_mutex);
+}
+
+static int psmouse_switch_protocol(struct psmouse *psmouse,
+ const struct psmouse_protocol *proto)
+{
+ const struct psmouse_protocol *selected_proto;
+ struct input_dev *input_dev = psmouse->dev;
+
+ input_dev->dev.parent = &psmouse->ps2dev.serio->dev;
+
+ input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL);
+ input_dev->keybit[BIT_WORD(BTN_MOUSE)] =
+ BIT_MASK(BTN_LEFT) | BIT_MASK(BTN_RIGHT);
+ input_dev->relbit[0] = BIT_MASK(REL_X) | BIT_MASK(REL_Y);
+
+ psmouse->set_rate = psmouse_set_rate;
+ psmouse->set_resolution = psmouse_set_resolution;
+ psmouse->poll = psmouse_poll;
+ psmouse->protocol_handler = psmouse_process_byte;
+ psmouse->pktsize = 3;
+
+ if (proto && (proto->detect || proto->init)) {
+ if (proto->detect && proto->detect(psmouse, true) < 0)
+ return -1;
+
+ if (proto->init && proto->init(psmouse) < 0)
+ return -1;
+
+ psmouse->type = proto->type;
+ selected_proto = proto;
+ } else {
+ psmouse->type = psmouse_extensions(psmouse,
+ psmouse_max_proto, true);
+ selected_proto = psmouse_protocol_by_type(psmouse->type);
+ }
+
+ psmouse->ignore_parity = selected_proto->ignore_parity;
+
+ /*
+ * If mouse's packet size is 3 there is no point in polling the
+ * device in hopes to detect protocol reset - we won't get less
+ * than 3 bytes response anyhow.
+ */
+ if (psmouse->pktsize == 3)
+ psmouse->resync_time = 0;
+
+ /*
+ * Some smart KVMs fake response to POLL command returning just
+ * 3 bytes and messing up our resync logic, so if initial poll
+ * fails we won't try polling the device anymore. Hopefully
+ * such KVM will maintain initially selected protocol.
+ */
+ if (psmouse->resync_time && psmouse->poll(psmouse))
+ psmouse->resync_time = 0;
+
+ snprintf(psmouse->devname, sizeof(psmouse->devname), "%s %s %s",
+ selected_proto->name, psmouse->vendor, psmouse->name);
+
+ input_dev->name = psmouse->devname;
+ input_dev->phys = psmouse->phys;
+ input_dev->id.bustype = BUS_I8042;
+ input_dev->id.vendor = 0x0002;
+ input_dev->id.product = psmouse->type;
+ input_dev->id.version = psmouse->model;
+
+ return 0;
+}
+
+/*
+ * psmouse_connect() is a callback from the serio module when
+ * an unhandled serio port is found.
+ */
+static int psmouse_connect(struct serio *serio, struct serio_driver *drv)
+{
+ struct psmouse *psmouse, *parent = NULL;
+ struct input_dev *input_dev;
+ int retval = 0, error = -ENOMEM;
+
+ mutex_lock(&psmouse_mutex);
+
+ /*
+ * If this is a pass-through port deactivate parent so the device
+ * connected to this port can be successfully identified
+ */
+ if (serio->parent && serio->id.type == SERIO_PS_PSTHRU) {
+ parent = serio_get_drvdata(serio->parent);
+ psmouse_deactivate(parent);
+ }
+
+ psmouse = kzalloc(sizeof(struct psmouse), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!psmouse || !input_dev)
+ goto err_free;
+
+ ps2_init(&psmouse->ps2dev, serio);
+ INIT_DELAYED_WORK(&psmouse->resync_work, psmouse_resync);
+ psmouse->dev = input_dev;
+ snprintf(psmouse->phys, sizeof(psmouse->phys), "%s/input0", serio->phys);
+
+ psmouse_set_state(psmouse, PSMOUSE_INITIALIZING);
+
+ serio_set_drvdata(serio, psmouse);
+
+ error = serio_open(serio, drv);
+ if (error)
+ goto err_clear_drvdata;
+
+ if (psmouse_probe(psmouse) < 0) {
+ error = -ENODEV;
+ goto err_close_serio;
+ }
+
+ psmouse->rate = psmouse_rate;
+ psmouse->resolution = psmouse_resolution;
+ psmouse->resetafter = psmouse_resetafter;
+ psmouse->resync_time = parent ? 0 : psmouse_resync_time;
+ psmouse->smartscroll = psmouse_smartscroll;
+
+ psmouse_switch_protocol(psmouse, NULL);
+
+ psmouse_set_state(psmouse, PSMOUSE_CMD_MODE);
+ psmouse_initialize(psmouse);
+
+ error = input_register_device(psmouse->dev);
+ if (error)
+ goto err_protocol_disconnect;
+
+ if (parent && parent->pt_activate)
+ parent->pt_activate(parent);
+
+ error = sysfs_create_group(&serio->dev.kobj, &psmouse_attribute_group);
+ if (error)
+ goto err_pt_deactivate;
+
+ psmouse_activate(psmouse);
+
+ out:
+ /* If this is a pass-through port the parent needs to be re-activated */
+ if (parent)
+ psmouse_activate(parent);
+
+ mutex_unlock(&psmouse_mutex);
+ return retval;
+
+ err_pt_deactivate:
+ if (parent && parent->pt_deactivate)
+ parent->pt_deactivate(parent);
+ input_unregister_device(psmouse->dev);
+ input_dev = NULL; /* so we don't try to free it below */
+ err_protocol_disconnect:
+ if (psmouse->disconnect)
+ psmouse->disconnect(psmouse);
+ psmouse_set_state(psmouse, PSMOUSE_IGNORE);
+ err_close_serio:
+ serio_close(serio);
+ err_clear_drvdata:
+ serio_set_drvdata(serio, NULL);
+ err_free:
+ input_free_device(input_dev);
+ kfree(psmouse);
+
+ retval = error;
+ goto out;
+}
+
+
+static int psmouse_reconnect(struct serio *serio)
+{
+ struct psmouse *psmouse = serio_get_drvdata(serio);
+ struct psmouse *parent = NULL;
+ struct serio_driver *drv = serio->drv;
+ unsigned char type;
+ int rc = -1;
+
+ if (!drv || !psmouse) {
+ psmouse_dbg(psmouse,
+ "reconnect request, but serio is disconnected, ignoring...\n");
+ return -1;
+ }
+
+ mutex_lock(&psmouse_mutex);
+
+ if (serio->parent && serio->id.type == SERIO_PS_PSTHRU) {
+ parent = serio_get_drvdata(serio->parent);
+ psmouse_deactivate(parent);
+ }
+
+ psmouse_set_state(psmouse, PSMOUSE_INITIALIZING);
+
+ if (psmouse->reconnect) {
+ if (psmouse->reconnect(psmouse))
+ goto out;
+ } else {
+ psmouse_reset(psmouse);
+
+ if (psmouse_probe(psmouse) < 0)
+ goto out;
+
+ type = psmouse_extensions(psmouse, psmouse_max_proto, false);
+ if (psmouse->type != type)
+ goto out;
+ }
+
+ /*
+ * OK, the device type (and capabilities) match the old one,
+ * we can continue using it, complete initialization
+ */
+ psmouse_set_state(psmouse, PSMOUSE_CMD_MODE);
+
+ psmouse_initialize(psmouse);
+
+ if (parent && parent->pt_activate)
+ parent->pt_activate(parent);
+
+ psmouse_activate(psmouse);
+ rc = 0;
+
+out:
+ /* If this is a pass-through port the parent waits to be activated */
+ if (parent)
+ psmouse_activate(parent);
+
+ mutex_unlock(&psmouse_mutex);
+ return rc;
+}
+
+static struct serio_device_id psmouse_serio_ids[] = {
+ {
+ .type = SERIO_8042,
+ .proto = SERIO_ANY,
+ .id = SERIO_ANY,
+ .extra = SERIO_ANY,
+ },
+ {
+ .type = SERIO_PS_PSTHRU,
+ .proto = SERIO_ANY,
+ .id = SERIO_ANY,
+ .extra = SERIO_ANY,
+ },
+ { 0 }
+};
+
+MODULE_DEVICE_TABLE(serio, psmouse_serio_ids);
+
+static struct serio_driver psmouse_drv = {
+ .driver = {
+ .name = "psmouse",
+ },
+ .description = DRIVER_DESC,
+ .id_table = psmouse_serio_ids,
+ .interrupt = psmouse_interrupt,
+ .connect = psmouse_connect,
+ .reconnect = psmouse_reconnect,
+ .disconnect = psmouse_disconnect,
+ .cleanup = psmouse_cleanup,
+};
+
+ssize_t psmouse_attr_show_helper(struct device *dev, struct device_attribute *devattr,
+ char *buf)
+{
+ struct serio *serio = to_serio_port(dev);
+ struct psmouse_attribute *attr = to_psmouse_attr(devattr);
+ struct psmouse *psmouse;
+
+ psmouse = serio_get_drvdata(serio);
+
+ return attr->show(psmouse, attr->data, buf);
+}
+
+ssize_t psmouse_attr_set_helper(struct device *dev, struct device_attribute *devattr,
+ const char *buf, size_t count)
+{
+ struct serio *serio = to_serio_port(dev);
+ struct psmouse_attribute *attr = to_psmouse_attr(devattr);
+ struct psmouse *psmouse, *parent = NULL;
+ int retval;
+
+ retval = mutex_lock_interruptible(&psmouse_mutex);
+ if (retval)
+ goto out;
+
+ psmouse = serio_get_drvdata(serio);
+
+ if (attr->protect) {
+ if (psmouse->state == PSMOUSE_IGNORE) {
+ retval = -ENODEV;
+ goto out_unlock;
+ }
+
+ if (serio->parent && serio->id.type == SERIO_PS_PSTHRU) {
+ parent = serio_get_drvdata(serio->parent);
+ psmouse_deactivate(parent);
+ }
+
+ psmouse_deactivate(psmouse);
+ }
+
+ retval = attr->set(psmouse, attr->data, buf, count);
+
+ if (attr->protect) {
+ if (retval != -ENODEV)
+ psmouse_activate(psmouse);
+
+ if (parent)
+ psmouse_activate(parent);
+ }
+
+ out_unlock:
+ mutex_unlock(&psmouse_mutex);
+ out:
+ return retval;
+}
+
+static ssize_t psmouse_show_int_attr(struct psmouse *psmouse, void *offset, char *buf)
+{
+ unsigned int *field = (unsigned int *)((char *)psmouse + (size_t)offset);
+
+ return sprintf(buf, "%u\n", *field);
+}
+
+static ssize_t psmouse_set_int_attr(struct psmouse *psmouse, void *offset, const char *buf, size_t count)
+{
+ unsigned int *field = (unsigned int *)((char *)psmouse + (size_t)offset);
+ unsigned long value;
+
+ if (strict_strtoul(buf, 10, &value))
+ return -EINVAL;
+
+ if ((unsigned int)value != value)
+ return -EINVAL;
+
+ *field = value;
+
+ return count;
+}
+
+static ssize_t psmouse_attr_show_protocol(struct psmouse *psmouse, void *data, char *buf)
+{
+ return sprintf(buf, "%s\n", psmouse_protocol_by_type(psmouse->type)->name);
+}
+
+static ssize_t psmouse_attr_set_protocol(struct psmouse *psmouse, void *data, const char *buf, size_t count)
+{
+ struct serio *serio = psmouse->ps2dev.serio;
+ struct psmouse *parent = NULL;
+ struct input_dev *old_dev, *new_dev;
+ const struct psmouse_protocol *proto, *old_proto;
+ int error;
+ int retry = 0;
+
+ proto = psmouse_protocol_by_name(buf, count);
+ if (!proto)
+ return -EINVAL;
+
+ if (psmouse->type == proto->type)
+ return count;
+
+ new_dev = input_allocate_device();
+ if (!new_dev)
+ return -ENOMEM;
+
+ while (!list_empty(&serio->children)) {
+ if (++retry > 3) {
+ psmouse_warn(psmouse,
+ "failed to destroy children ports, protocol change aborted.\n");
+ input_free_device(new_dev);
+ return -EIO;
+ }
+
+ mutex_unlock(&psmouse_mutex);
+ serio_unregister_child_port(serio);
+ mutex_lock(&psmouse_mutex);
+
+ if (serio->drv != &psmouse_drv) {
+ input_free_device(new_dev);
+ return -ENODEV;
+ }
+
+ if (psmouse->type == proto->type) {
+ input_free_device(new_dev);
+ return count; /* switched by other thread */
+ }
+ }
+
+ if (serio->parent && serio->id.type == SERIO_PS_PSTHRU) {
+ parent = serio_get_drvdata(serio->parent);
+ if (parent->pt_deactivate)
+ parent->pt_deactivate(parent);
+ }
+
+ old_dev = psmouse->dev;
+ old_proto = psmouse_protocol_by_type(psmouse->type);
+
+ if (psmouse->disconnect)
+ psmouse->disconnect(psmouse);
+
+ psmouse_set_state(psmouse, PSMOUSE_IGNORE);
+
+ psmouse->dev = new_dev;
+ psmouse_set_state(psmouse, PSMOUSE_INITIALIZING);
+
+ if (psmouse_switch_protocol(psmouse, proto) < 0) {
+ psmouse_reset(psmouse);
+ /* default to PSMOUSE_PS2 */
+ psmouse_switch_protocol(psmouse, &psmouse_protocols[0]);
+ }
+
+ psmouse_initialize(psmouse);
+ psmouse_set_state(psmouse, PSMOUSE_CMD_MODE);
+
+ error = input_register_device(psmouse->dev);
+ if (error) {
+ if (psmouse->disconnect)
+ psmouse->disconnect(psmouse);
+
+ psmouse_set_state(psmouse, PSMOUSE_IGNORE);
+ input_free_device(new_dev);
+ psmouse->dev = old_dev;
+ psmouse_set_state(psmouse, PSMOUSE_INITIALIZING);
+ psmouse_switch_protocol(psmouse, old_proto);
+ psmouse_initialize(psmouse);
+ psmouse_set_state(psmouse, PSMOUSE_CMD_MODE);
+
+ return error;
+ }
+
+ input_unregister_device(old_dev);
+
+ if (parent && parent->pt_activate)
+ parent->pt_activate(parent);
+
+ return count;
+}
+
+static ssize_t psmouse_attr_set_rate(struct psmouse *psmouse, void *data, const char *buf, size_t count)
+{
+ unsigned long value;
+
+ if (strict_strtoul(buf, 10, &value))
+ return -EINVAL;
+
+ psmouse->set_rate(psmouse, value);
+ return count;
+}
+
+static ssize_t psmouse_attr_set_resolution(struct psmouse *psmouse, void *data, const char *buf, size_t count)
+{
+ unsigned long value;
+
+ if (strict_strtoul(buf, 10, &value))
+ return -EINVAL;
+
+ psmouse->set_resolution(psmouse, value);
+ return count;
+}
+
+
+static int psmouse_set_maxproto(const char *val, const struct kernel_param *kp)
+{
+ const struct psmouse_protocol *proto;
+
+ if (!val)
+ return -EINVAL;
+
+ proto = psmouse_protocol_by_name(val, strlen(val));
+
+ if (!proto || !proto->maxproto)
+ return -EINVAL;
+
+ *((unsigned int *)kp->arg) = proto->type;
+
+ return 0;
+}
+
+static int psmouse_get_maxproto(char *buffer, const struct kernel_param *kp)
+{
+ int type = *((unsigned int *)kp->arg);
+
+ return sprintf(buffer, "%s", psmouse_protocol_by_type(type)->name);
+}
+
+static int __init psmouse_init(void)
+{
+ int err;
+
+ lifebook_module_init();
+ synaptics_module_init();
+ hgpk_module_init();
+
+ kpsmoused_wq = create_singlethread_workqueue("kpsmoused");
+ if (!kpsmoused_wq) {
+ pr_err("failed to create kpsmoused workqueue\n");
+ return -ENOMEM;
+ }
+
+ err = serio_register_driver(&psmouse_drv);
+ if (err)
+ destroy_workqueue(kpsmoused_wq);
+
+ return err;
+}
+
+static void __exit psmouse_exit(void)
+{
+ serio_unregister_driver(&psmouse_drv);
+ destroy_workqueue(kpsmoused_wq);
+}
+
+module_init(psmouse_init);
+module_exit(psmouse_exit);
diff --git a/drivers/input/mouse/psmouse.h b/drivers/input/mouse/psmouse.h
new file mode 100644
index 0000000..9b84b0c
--- /dev/null
+++ b/drivers/input/mouse/psmouse.h
@@ -0,0 +1,178 @@
+#ifndef _PSMOUSE_H
+#define _PSMOUSE_H
+
+#define PSMOUSE_CMD_SETSCALE11 0x00e6
+#define PSMOUSE_CMD_SETSCALE21 0x00e7
+#define PSMOUSE_CMD_SETRES 0x10e8
+#define PSMOUSE_CMD_GETINFO 0x03e9
+#define PSMOUSE_CMD_SETSTREAM 0x00ea
+#define PSMOUSE_CMD_SETPOLL 0x00f0
+#define PSMOUSE_CMD_POLL 0x00eb /* caller sets number of bytes to receive */
+#define PSMOUSE_CMD_GETID 0x02f2
+#define PSMOUSE_CMD_SETRATE 0x10f3
+#define PSMOUSE_CMD_ENABLE 0x00f4
+#define PSMOUSE_CMD_DISABLE 0x00f5
+#define PSMOUSE_CMD_RESET_DIS 0x00f6
+#define PSMOUSE_CMD_RESET_BAT 0x02ff
+
+#define PSMOUSE_RET_BAT 0xaa
+#define PSMOUSE_RET_ID 0x00
+#define PSMOUSE_RET_ACK 0xfa
+#define PSMOUSE_RET_NAK 0xfe
+
+enum psmouse_state {
+ PSMOUSE_IGNORE,
+ PSMOUSE_INITIALIZING,
+ PSMOUSE_RESYNCING,
+ PSMOUSE_CMD_MODE,
+ PSMOUSE_ACTIVATED,
+};
+
+/* psmouse protocol handler return codes */
+typedef enum {
+ PSMOUSE_BAD_DATA,
+ PSMOUSE_GOOD_DATA,
+ PSMOUSE_FULL_PACKET
+} psmouse_ret_t;
+
+struct psmouse {
+ void *private;
+ struct input_dev *dev;
+ struct ps2dev ps2dev;
+ struct delayed_work resync_work;
+ char *vendor;
+ char *name;
+ unsigned char packet[8];
+ unsigned char badbyte;
+ unsigned char pktcnt;
+ unsigned char pktsize;
+ unsigned char type;
+ bool ignore_parity;
+ bool acks_disable_command;
+ unsigned int model;
+ unsigned long last;
+ unsigned long out_of_sync_cnt;
+ unsigned long num_resyncs;
+ enum psmouse_state state;
+ char devname[64];
+ char phys[32];
+
+ unsigned int rate;
+ unsigned int resolution;
+ unsigned int resetafter;
+ unsigned int resync_time;
+ bool smartscroll; /* Logitech only */
+
+ psmouse_ret_t (*protocol_handler)(struct psmouse *psmouse);
+ void (*set_rate)(struct psmouse *psmouse, unsigned int rate);
+ void (*set_resolution)(struct psmouse *psmouse, unsigned int resolution);
+
+ int (*reconnect)(struct psmouse *psmouse);
+ void (*disconnect)(struct psmouse *psmouse);
+ void (*cleanup)(struct psmouse *psmouse);
+ int (*poll)(struct psmouse *psmouse);
+
+ void (*pt_activate)(struct psmouse *psmouse);
+ void (*pt_deactivate)(struct psmouse *psmouse);
+};
+
+enum psmouse_type {
+ PSMOUSE_NONE,
+ PSMOUSE_PS2,
+ PSMOUSE_PS2PP,
+ PSMOUSE_THINKPS,
+ PSMOUSE_GENPS,
+ PSMOUSE_IMPS,
+ PSMOUSE_IMEX,
+ PSMOUSE_SYNAPTICS,
+ PSMOUSE_ALPS,
+ PSMOUSE_LIFEBOOK,
+ PSMOUSE_TRACKPOINT,
+ PSMOUSE_TOUCHKIT_PS2,
+ PSMOUSE_CORTRON,
+ PSMOUSE_HGPK,
+ PSMOUSE_ELANTECH,
+ PSMOUSE_FSP,
+ PSMOUSE_AUTO /* This one should always be last */
+};
+
+void psmouse_queue_work(struct psmouse *psmouse, struct delayed_work *work,
+ unsigned long delay);
+int psmouse_sliced_command(struct psmouse *psmouse, unsigned char command);
+int psmouse_reset(struct psmouse *psmouse);
+void psmouse_set_state(struct psmouse *psmouse, enum psmouse_state new_state);
+void psmouse_set_resolution(struct psmouse *psmouse, unsigned int resolution);
+
+struct psmouse_attribute {
+ struct device_attribute dattr;
+ void *data;
+ ssize_t (*show)(struct psmouse *psmouse, void *data, char *buf);
+ ssize_t (*set)(struct psmouse *psmouse, void *data,
+ const char *buf, size_t count);
+ bool protect;
+};
+#define to_psmouse_attr(a) container_of((a), struct psmouse_attribute, dattr)
+
+ssize_t psmouse_attr_show_helper(struct device *dev, struct device_attribute *attr,
+ char *buf);
+ssize_t psmouse_attr_set_helper(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count);
+
+#define __PSMOUSE_DEFINE_ATTR_VAR(_name, _mode, _data, _show, _set, _protect) \
+static struct psmouse_attribute psmouse_attr_##_name = { \
+ .dattr = { \
+ .attr = { \
+ .name = __stringify(_name), \
+ .mode = _mode, \
+ }, \
+ .show = psmouse_attr_show_helper, \
+ .store = psmouse_attr_set_helper, \
+ }, \
+ .data = _data, \
+ .show = _show, \
+ .set = _set, \
+ .protect = _protect, \
+}
+
+#define __PSMOUSE_DEFINE_ATTR(_name, _mode, _data, _show, _set, _protect) \
+ static ssize_t _show(struct psmouse *, void *, char *); \
+ static ssize_t _set(struct psmouse *, void *, const char *, size_t); \
+ __PSMOUSE_DEFINE_ATTR_VAR(_name, _mode, _data, _show, _set, _protect)
+
+#define PSMOUSE_DEFINE_ATTR(_name, _mode, _data, _show, _set) \
+ __PSMOUSE_DEFINE_ATTR(_name, _mode, _data, _show, _set, true)
+
+#define PSMOUSE_DEFINE_RO_ATTR(_name, _mode, _data, _show) \
+ static ssize_t _show(struct psmouse *, void *, char *); \
+ __PSMOUSE_DEFINE_ATTR_VAR(_name, _mode, _data, _show, NULL, true)
+
+#define PSMOUSE_DEFINE_WO_ATTR(_name, _mode, _data, _set) \
+ static ssize_t _set(struct psmouse *, void *, const char *, size_t); \
+ __PSMOUSE_DEFINE_ATTR_VAR(_name, _mode, _data, NULL, _set, true)
+
+#ifndef psmouse_fmt
+#define psmouse_fmt(fmt) KBUILD_BASENAME ": " fmt
+#endif
+
+#define psmouse_dbg(psmouse, format, ...) \
+ dev_dbg(&(psmouse)->ps2dev.serio->dev, \
+ psmouse_fmt(format), ##__VA_ARGS__)
+#define psmouse_info(psmouse, format, ...) \
+ dev_info(&(psmouse)->ps2dev.serio->dev, \
+ psmouse_fmt(format), ##__VA_ARGS__)
+#define psmouse_warn(psmouse, format, ...) \
+ dev_warn(&(psmouse)->ps2dev.serio->dev, \
+ psmouse_fmt(format), ##__VA_ARGS__)
+#define psmouse_err(psmouse, format, ...) \
+ dev_err(&(psmouse)->ps2dev.serio->dev, \
+ psmouse_fmt(format), ##__VA_ARGS__)
+#define psmouse_notice(psmouse, format, ...) \
+ dev_notice(&(psmouse)->ps2dev.serio->dev, \
+ psmouse_fmt(format), ##__VA_ARGS__)
+#define psmouse_printk(level, psmouse, format, ...) \
+ dev_printk(level, \
+ &(psmouse)->ps2dev.serio->dev, \
+ psmouse_fmt(format), ##__VA_ARGS__)
+
+
+#endif /* _PSMOUSE_H */
diff --git a/drivers/input/mouse/pxa930_trkball.c b/drivers/input/mouse/pxa930_trkball.c
new file mode 100644
index 0000000..ee3b0ca
--- /dev/null
+++ b/drivers/input/mouse/pxa930_trkball.c
@@ -0,0 +1,269 @@
+/*
+ * PXA930 track ball mouse driver
+ *
+ * Copyright (C) 2007 Marvell International Ltd.
+ * 2008-02-28: Yong Yao <yaoyong@marvell.com>
+ * initial version
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/init.h>
+#include <linux/input.h>
+#include <linux/interrupt.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/delay.h>
+#include <linux/io.h>
+#include <linux/slab.h>
+
+#include <mach/hardware.h>
+#include <mach/pxa930_trkball.h>
+
+/* Trackball Controller Register Definitions */
+#define TBCR (0x000C)
+#define TBCNTR (0x0010)
+#define TBSBC (0x0014)
+
+#define TBCR_TBRST (1 << 1)
+#define TBCR_TBSB (1 << 10)
+
+#define TBCR_Y_FLT(n) (((n) & 0xf) << 6)
+#define TBCR_X_FLT(n) (((n) & 0xf) << 2)
+
+#define TBCNTR_YM(n) (((n) >> 24) & 0xff)
+#define TBCNTR_YP(n) (((n) >> 16) & 0xff)
+#define TBCNTR_XM(n) (((n) >> 8) & 0xff)
+#define TBCNTR_XP(n) ((n) & 0xff)
+
+#define TBSBC_TBSBC (0x1)
+
+struct pxa930_trkball {
+ struct pxa930_trkball_platform_data *pdata;
+
+ /* Memory Mapped Register */
+ struct resource *mem;
+ void __iomem *mmio_base;
+
+ struct input_dev *input;
+};
+
+static irqreturn_t pxa930_trkball_interrupt(int irq, void *dev_id)
+{
+ struct pxa930_trkball *trkball = dev_id;
+ struct input_dev *input = trkball->input;
+ int tbcntr, x, y;
+
+ /* According to the spec software must read TBCNTR twice:
+ * if the read value is the same, the reading is valid
+ */
+ tbcntr = __raw_readl(trkball->mmio_base + TBCNTR);
+
+ if (tbcntr == __raw_readl(trkball->mmio_base + TBCNTR)) {
+ x = (TBCNTR_XP(tbcntr) - TBCNTR_XM(tbcntr)) / 2;
+ y = (TBCNTR_YP(tbcntr) - TBCNTR_YM(tbcntr)) / 2;
+
+ input_report_rel(input, REL_X, x);
+ input_report_rel(input, REL_Y, y);
+ input_sync(input);
+ }
+
+ __raw_writel(TBSBC_TBSBC, trkball->mmio_base + TBSBC);
+ __raw_writel(0, trkball->mmio_base + TBSBC);
+
+ return IRQ_HANDLED;
+}
+
+/* For TBCR, we need to wait for a while to make sure it has been modified. */
+static int write_tbcr(struct pxa930_trkball *trkball, int v)
+{
+ int i = 100;
+
+ __raw_writel(v, trkball->mmio_base + TBCR);
+
+ while (--i) {
+ if (__raw_readl(trkball->mmio_base + TBCR) == v)
+ break;
+ msleep(1);
+ }
+
+ if (i == 0) {
+ pr_err("%s: timed out writing TBCR(%x)!\n", __func__, v);
+ return -ETIMEDOUT;
+ }
+
+ return 0;
+}
+
+static void pxa930_trkball_config(struct pxa930_trkball *trkball)
+{
+ uint32_t tbcr;
+
+ /* According to spec, need to write the filters of x,y to 0xf first! */
+ tbcr = __raw_readl(trkball->mmio_base + TBCR);
+ write_tbcr(trkball, tbcr | TBCR_X_FLT(0xf) | TBCR_Y_FLT(0xf));
+ write_tbcr(trkball, TBCR_X_FLT(trkball->pdata->x_filter) |
+ TBCR_Y_FLT(trkball->pdata->y_filter));
+
+ /* According to spec, set TBCR_TBRST first, before clearing it! */
+ tbcr = __raw_readl(trkball->mmio_base + TBCR);
+ write_tbcr(trkball, tbcr | TBCR_TBRST);
+ write_tbcr(trkball, tbcr & ~TBCR_TBRST);
+
+ __raw_writel(TBSBC_TBSBC, trkball->mmio_base + TBSBC);
+ __raw_writel(0, trkball->mmio_base + TBSBC);
+
+ pr_debug("%s: final TBCR=%x!\n", __func__,
+ __raw_readl(trkball->mmio_base + TBCR));
+}
+
+static int pxa930_trkball_open(struct input_dev *dev)
+{
+ struct pxa930_trkball *trkball = input_get_drvdata(dev);
+
+ pxa930_trkball_config(trkball);
+
+ return 0;
+}
+
+static void pxa930_trkball_disable(struct pxa930_trkball *trkball)
+{
+ uint32_t tbcr = __raw_readl(trkball->mmio_base + TBCR);
+
+ /* Held in reset, gate the 32-KHz input clock off */
+ write_tbcr(trkball, tbcr | TBCR_TBRST);
+}
+
+static void pxa930_trkball_close(struct input_dev *dev)
+{
+ struct pxa930_trkball *trkball = input_get_drvdata(dev);
+
+ pxa930_trkball_disable(trkball);
+}
+
+static int __devinit pxa930_trkball_probe(struct platform_device *pdev)
+{
+ struct pxa930_trkball *trkball;
+ struct input_dev *input;
+ struct resource *res;
+ int irq, error;
+
+ irq = platform_get_irq(pdev, 0);
+ if (irq < 0) {
+ dev_err(&pdev->dev, "failed to get trkball irq\n");
+ return -ENXIO;
+ }
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!res) {
+ dev_err(&pdev->dev, "failed to get register memory\n");
+ return -ENXIO;
+ }
+
+ trkball = kzalloc(sizeof(struct pxa930_trkball), GFP_KERNEL);
+ if (!trkball)
+ return -ENOMEM;
+
+ trkball->pdata = pdev->dev.platform_data;
+ if (!trkball->pdata) {
+ dev_err(&pdev->dev, "no platform data defined\n");
+ error = -EINVAL;
+ goto failed;
+ }
+
+ trkball->mmio_base = ioremap_nocache(res->start, resource_size(res));
+ if (!trkball->mmio_base) {
+ dev_err(&pdev->dev, "failed to ioremap registers\n");
+ error = -ENXIO;
+ goto failed;
+ }
+
+ /* held the module in reset, will be enabled in open() */
+ pxa930_trkball_disable(trkball);
+
+ error = request_irq(irq, pxa930_trkball_interrupt, 0,
+ pdev->name, trkball);
+ if (error) {
+ dev_err(&pdev->dev, "failed to request irq: %d\n", error);
+ goto failed_free_io;
+ }
+
+ platform_set_drvdata(pdev, trkball);
+
+ input = input_allocate_device();
+ if (!input) {
+ dev_err(&pdev->dev, "failed to allocate input device\n");
+ error = -ENOMEM;
+ goto failed_free_irq;
+ }
+
+ input->name = pdev->name;
+ input->id.bustype = BUS_HOST;
+ input->open = pxa930_trkball_open;
+ input->close = pxa930_trkball_close;
+ input->dev.parent = &pdev->dev;
+ input_set_drvdata(input, trkball);
+
+ trkball->input = input;
+
+ input_set_capability(input, EV_REL, REL_X);
+ input_set_capability(input, EV_REL, REL_Y);
+
+ error = input_register_device(input);
+ if (error) {
+ dev_err(&pdev->dev, "unable to register input device\n");
+ goto failed_free_input;
+ }
+
+ return 0;
+
+failed_free_input:
+ input_free_device(input);
+failed_free_irq:
+ free_irq(irq, trkball);
+failed_free_io:
+ iounmap(trkball->mmio_base);
+failed:
+ kfree(trkball);
+ return error;
+}
+
+static int __devexit pxa930_trkball_remove(struct platform_device *pdev)
+{
+ struct pxa930_trkball *trkball = platform_get_drvdata(pdev);
+ int irq = platform_get_irq(pdev, 0);
+
+ input_unregister_device(trkball->input);
+ free_irq(irq, trkball);
+ iounmap(trkball->mmio_base);
+ kfree(trkball);
+
+ return 0;
+}
+
+static struct platform_driver pxa930_trkball_driver = {
+ .driver = {
+ .name = "pxa930-trkball",
+ },
+ .probe = pxa930_trkball_probe,
+ .remove = __devexit_p(pxa930_trkball_remove),
+};
+
+static int __init pxa930_trkball_init(void)
+{
+ return platform_driver_register(&pxa930_trkball_driver);
+}
+
+static void __exit pxa930_trkball_exit(void)
+{
+ platform_driver_unregister(&pxa930_trkball_driver);
+}
+
+module_init(pxa930_trkball_init);
+module_exit(pxa930_trkball_exit);
+
+MODULE_AUTHOR("Yong Yao <yaoyong@marvell.com>");
+MODULE_DESCRIPTION("PXA930 Trackball Mouse Driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/input/mouse/rpcmouse.c b/drivers/input/mouse/rpcmouse.c
new file mode 100644
index 0000000..272dedd
--- /dev/null
+++ b/drivers/input/mouse/rpcmouse.c
@@ -0,0 +1,116 @@
+/*
+ * Acorn RiscPC mouse driver for Linux/ARM
+ *
+ * Copyright (c) 2000-2002 Vojtech Pavlik
+ * Copyright (C) 1996-2002 Russell King
+ *
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This handles the Acorn RiscPCs mouse. We basically have a couple of
+ * hardware registers that track the sensor count for the X-Y movement and
+ * another register holding the button state. On every VSYNC interrupt we read
+ * the complete state and then work out if something has changed.
+ */
+
+#include <linux/module.h>
+#include <linux/ptrace.h>
+#include <linux/interrupt.h>
+#include <linux/init.h>
+#include <linux/input.h>
+#include <linux/io.h>
+
+#include <mach/hardware.h>
+#include <asm/irq.h>
+#include <asm/hardware/iomd.h>
+
+MODULE_AUTHOR("Vojtech Pavlik, Russell King");
+MODULE_DESCRIPTION("Acorn RiscPC mouse driver");
+MODULE_LICENSE("GPL");
+
+static short rpcmouse_lastx, rpcmouse_lasty;
+static struct input_dev *rpcmouse_dev;
+
+static irqreturn_t rpcmouse_irq(int irq, void *dev_id)
+{
+ struct input_dev *dev = dev_id;
+ short x, y, dx, dy, b;
+
+ x = (short) iomd_readl(IOMD_MOUSEX);
+ y = (short) iomd_readl(IOMD_MOUSEY);
+ b = (short) (__raw_readl(0xe0310000) ^ 0x70);
+
+ dx = x - rpcmouse_lastx;
+ dy = y - rpcmouse_lasty;
+
+ rpcmouse_lastx = x;
+ rpcmouse_lasty = y;
+
+ input_report_rel(dev, REL_X, dx);
+ input_report_rel(dev, REL_Y, -dy);
+
+ input_report_key(dev, BTN_LEFT, b & 0x40);
+ input_report_key(dev, BTN_MIDDLE, b & 0x20);
+ input_report_key(dev, BTN_RIGHT, b & 0x10);
+
+ input_sync(dev);
+
+ return IRQ_HANDLED;
+}
+
+
+static int __init rpcmouse_init(void)
+{
+ int err;
+
+ rpcmouse_dev = input_allocate_device();
+ if (!rpcmouse_dev)
+ return -ENOMEM;
+
+ rpcmouse_dev->name = "Acorn RiscPC Mouse";
+ rpcmouse_dev->phys = "rpcmouse/input0";
+ rpcmouse_dev->id.bustype = BUS_HOST;
+ rpcmouse_dev->id.vendor = 0x0005;
+ rpcmouse_dev->id.product = 0x0001;
+ rpcmouse_dev->id.version = 0x0100;
+
+ rpcmouse_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL);
+ rpcmouse_dev->keybit[BIT_WORD(BTN_LEFT)] = BIT_MASK(BTN_LEFT) |
+ BIT_MASK(BTN_MIDDLE) | BIT_MASK(BTN_RIGHT);
+ rpcmouse_dev->relbit[0] = BIT_MASK(REL_X) | BIT_MASK(REL_Y);
+
+ rpcmouse_lastx = (short) iomd_readl(IOMD_MOUSEX);
+ rpcmouse_lasty = (short) iomd_readl(IOMD_MOUSEY);
+
+ if (request_irq(IRQ_VSYNCPULSE, rpcmouse_irq, IRQF_SHARED, "rpcmouse", rpcmouse_dev)) {
+ printk(KERN_ERR "rpcmouse: unable to allocate VSYNC interrupt\n");
+ err = -EBUSY;
+ goto err_free_dev;
+ }
+
+ err = input_register_device(rpcmouse_dev);
+ if (err)
+ goto err_free_irq;
+
+ return 0;
+
+ err_free_irq:
+ free_irq(IRQ_VSYNCPULSE, rpcmouse_dev);
+ err_free_dev:
+ input_free_device(rpcmouse_dev);
+
+ return err;
+}
+
+static void __exit rpcmouse_exit(void)
+{
+ free_irq(IRQ_VSYNCPULSE, rpcmouse_dev);
+ input_unregister_device(rpcmouse_dev);
+}
+
+module_init(rpcmouse_init);
+module_exit(rpcmouse_exit);
diff --git a/drivers/input/mouse/sentelic.c b/drivers/input/mouse/sentelic.c
new file mode 100644
index 0000000..86d6f39
--- /dev/null
+++ b/drivers/input/mouse/sentelic.c
@@ -0,0 +1,871 @@
+/*-
+ * Finger Sensing Pad PS/2 mouse driver.
+ *
+ * Copyright (C) 2005-2007 Asia Vital Components Co., Ltd.
+ * Copyright (C) 2005-2011 Tai-hwa Liang, Sentelic Corporation.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/module.h>
+#include <linux/input.h>
+#include <linux/ctype.h>
+#include <linux/libps2.h>
+#include <linux/serio.h>
+#include <linux/jiffies.h>
+#include <linux/slab.h>
+
+#include "psmouse.h"
+#include "sentelic.h"
+
+/*
+ * Timeout for FSP PS/2 command only (in milliseconds).
+ */
+#define FSP_CMD_TIMEOUT 200
+#define FSP_CMD_TIMEOUT2 30
+
+/** Driver version. */
+static const char fsp_drv_ver[] = "1.0.0-K";
+
+/*
+ * Make sure that the value being sent to FSP will not conflict with
+ * possible sample rate values.
+ */
+static unsigned char fsp_test_swap_cmd(unsigned char reg_val)
+{
+ switch (reg_val) {
+ case 10: case 20: case 40: case 60: case 80: case 100: case 200:
+ /*
+ * The requested value being sent to FSP matched to possible
+ * sample rates, swap the given value such that the hardware
+ * wouldn't get confused.
+ */
+ return (reg_val >> 4) | (reg_val << 4);
+ default:
+ return reg_val; /* swap isn't necessary */
+ }
+}
+
+/*
+ * Make sure that the value being sent to FSP will not conflict with certain
+ * commands.
+ */
+static unsigned char fsp_test_invert_cmd(unsigned char reg_val)
+{
+ switch (reg_val) {
+ case 0xe9: case 0xee: case 0xf2: case 0xff:
+ /*
+ * The requested value being sent to FSP matched to certain
+ * commands, inverse the given value such that the hardware
+ * wouldn't get confused.
+ */
+ return ~reg_val;
+ default:
+ return reg_val; /* inversion isn't necessary */
+ }
+}
+
+static int fsp_reg_read(struct psmouse *psmouse, int reg_addr, int *reg_val)
+{
+ struct ps2dev *ps2dev = &psmouse->ps2dev;
+ unsigned char param[3];
+ unsigned char addr;
+ int rc = -1;
+
+ /*
+ * We need to shut off the device and switch it into command
+ * mode so we don't confuse our protocol handler. We don't need
+ * to do that for writes because sysfs set helper does this for
+ * us.
+ */
+ ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE);
+ psmouse_set_state(psmouse, PSMOUSE_CMD_MODE);
+
+ ps2_begin_command(ps2dev);
+
+ if (ps2_sendbyte(ps2dev, 0xf3, FSP_CMD_TIMEOUT) < 0)
+ goto out;
+
+ /* should return 0xfe(request for resending) */
+ ps2_sendbyte(ps2dev, 0x66, FSP_CMD_TIMEOUT2);
+ /* should return 0xfc(failed) */
+ ps2_sendbyte(ps2dev, 0x88, FSP_CMD_TIMEOUT2);
+
+ if (ps2_sendbyte(ps2dev, 0xf3, FSP_CMD_TIMEOUT) < 0)
+ goto out;
+
+ if ((addr = fsp_test_invert_cmd(reg_addr)) != reg_addr) {
+ ps2_sendbyte(ps2dev, 0x68, FSP_CMD_TIMEOUT2);
+ } else if ((addr = fsp_test_swap_cmd(reg_addr)) != reg_addr) {
+ /* swapping is required */
+ ps2_sendbyte(ps2dev, 0xcc, FSP_CMD_TIMEOUT2);
+ /* expect 0xfe */
+ } else {
+ /* swapping isn't necessary */
+ ps2_sendbyte(ps2dev, 0x66, FSP_CMD_TIMEOUT2);
+ /* expect 0xfe */
+ }
+ /* should return 0xfc(failed) */
+ ps2_sendbyte(ps2dev, addr, FSP_CMD_TIMEOUT);
+
+ if (__ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO) < 0)
+ goto out;
+
+ *reg_val = param[2];
+ rc = 0;
+
+ out:
+ ps2_end_command(ps2dev);
+ ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE);
+ psmouse_set_state(psmouse, PSMOUSE_ACTIVATED);
+ dev_dbg(&ps2dev->serio->dev, "READ REG: 0x%02x is 0x%02x (rc = %d)\n",
+ reg_addr, *reg_val, rc);
+ return rc;
+}
+
+static int fsp_reg_write(struct psmouse *psmouse, int reg_addr, int reg_val)
+{
+ struct ps2dev *ps2dev = &psmouse->ps2dev;
+ unsigned char v;
+ int rc = -1;
+
+ ps2_begin_command(ps2dev);
+
+ if (ps2_sendbyte(ps2dev, 0xf3, FSP_CMD_TIMEOUT) < 0)
+ goto out;
+
+ if ((v = fsp_test_invert_cmd(reg_addr)) != reg_addr) {
+ /* inversion is required */
+ ps2_sendbyte(ps2dev, 0x74, FSP_CMD_TIMEOUT2);
+ } else {
+ if ((v = fsp_test_swap_cmd(reg_addr)) != reg_addr) {
+ /* swapping is required */
+ ps2_sendbyte(ps2dev, 0x77, FSP_CMD_TIMEOUT2);
+ } else {
+ /* swapping isn't necessary */
+ ps2_sendbyte(ps2dev, 0x55, FSP_CMD_TIMEOUT2);
+ }
+ }
+ /* write the register address in correct order */
+ ps2_sendbyte(ps2dev, v, FSP_CMD_TIMEOUT2);
+
+ if (ps2_sendbyte(ps2dev, 0xf3, FSP_CMD_TIMEOUT) < 0)
+ goto out;
+
+ if ((v = fsp_test_invert_cmd(reg_val)) != reg_val) {
+ /* inversion is required */
+ ps2_sendbyte(ps2dev, 0x47, FSP_CMD_TIMEOUT2);
+ } else if ((v = fsp_test_swap_cmd(reg_val)) != reg_val) {
+ /* swapping is required */
+ ps2_sendbyte(ps2dev, 0x44, FSP_CMD_TIMEOUT2);
+ } else {
+ /* swapping isn't necessary */
+ ps2_sendbyte(ps2dev, 0x33, FSP_CMD_TIMEOUT2);
+ }
+
+ /* write the register value in correct order */
+ ps2_sendbyte(ps2dev, v, FSP_CMD_TIMEOUT2);
+ rc = 0;
+
+ out:
+ ps2_end_command(ps2dev);
+ dev_dbg(&ps2dev->serio->dev, "WRITE REG: 0x%02x to 0x%02x (rc = %d)\n",
+ reg_addr, reg_val, rc);
+ return rc;
+}
+
+/* Enable register clock gating for writing certain registers */
+static int fsp_reg_write_enable(struct psmouse *psmouse, bool enable)
+{
+ int v, nv;
+
+ if (fsp_reg_read(psmouse, FSP_REG_SYSCTL1, &v) == -1)
+ return -1;
+
+ if (enable)
+ nv = v | FSP_BIT_EN_REG_CLK;
+ else
+ nv = v & ~FSP_BIT_EN_REG_CLK;
+
+ /* only write if necessary */
+ if (nv != v)
+ if (fsp_reg_write(psmouse, FSP_REG_SYSCTL1, nv) == -1)
+ return -1;
+
+ return 0;
+}
+
+static int fsp_page_reg_read(struct psmouse *psmouse, int *reg_val)
+{
+ struct ps2dev *ps2dev = &psmouse->ps2dev;
+ unsigned char param[3];
+ int rc = -1;
+
+ ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE);
+ psmouse_set_state(psmouse, PSMOUSE_CMD_MODE);
+
+ ps2_begin_command(ps2dev);
+
+ if (ps2_sendbyte(ps2dev, 0xf3, FSP_CMD_TIMEOUT) < 0)
+ goto out;
+
+ ps2_sendbyte(ps2dev, 0x66, FSP_CMD_TIMEOUT2);
+ ps2_sendbyte(ps2dev, 0x88, FSP_CMD_TIMEOUT2);
+
+ if (ps2_sendbyte(ps2dev, 0xf3, FSP_CMD_TIMEOUT) < 0)
+ goto out;
+
+ ps2_sendbyte(ps2dev, 0x83, FSP_CMD_TIMEOUT2);
+ ps2_sendbyte(ps2dev, 0x88, FSP_CMD_TIMEOUT2);
+
+ /* get the returned result */
+ if (__ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO))
+ goto out;
+
+ *reg_val = param[2];
+ rc = 0;
+
+ out:
+ ps2_end_command(ps2dev);
+ ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE);
+ psmouse_set_state(psmouse, PSMOUSE_ACTIVATED);
+ dev_dbg(&ps2dev->serio->dev, "READ PAGE REG: 0x%02x (rc = %d)\n",
+ *reg_val, rc);
+ return rc;
+}
+
+static int fsp_page_reg_write(struct psmouse *psmouse, int reg_val)
+{
+ struct ps2dev *ps2dev = &psmouse->ps2dev;
+ unsigned char v;
+ int rc = -1;
+
+ ps2_begin_command(ps2dev);
+
+ if (ps2_sendbyte(ps2dev, 0xf3, FSP_CMD_TIMEOUT) < 0)
+ goto out;
+
+ ps2_sendbyte(ps2dev, 0x38, FSP_CMD_TIMEOUT2);
+ ps2_sendbyte(ps2dev, 0x88, FSP_CMD_TIMEOUT2);
+
+ if (ps2_sendbyte(ps2dev, 0xf3, FSP_CMD_TIMEOUT) < 0)
+ goto out;
+
+ if ((v = fsp_test_invert_cmd(reg_val)) != reg_val) {
+ ps2_sendbyte(ps2dev, 0x47, FSP_CMD_TIMEOUT2);
+ } else if ((v = fsp_test_swap_cmd(reg_val)) != reg_val) {
+ /* swapping is required */
+ ps2_sendbyte(ps2dev, 0x44, FSP_CMD_TIMEOUT2);
+ } else {
+ /* swapping isn't necessary */
+ ps2_sendbyte(ps2dev, 0x33, FSP_CMD_TIMEOUT2);
+ }
+
+ ps2_sendbyte(ps2dev, v, FSP_CMD_TIMEOUT2);
+ rc = 0;
+
+ out:
+ ps2_end_command(ps2dev);
+ dev_dbg(&ps2dev->serio->dev, "WRITE PAGE REG: to 0x%02x (rc = %d)\n",
+ reg_val, rc);
+ return rc;
+}
+
+static int fsp_get_version(struct psmouse *psmouse, int *version)
+{
+ if (fsp_reg_read(psmouse, FSP_REG_VERSION, version))
+ return -EIO;
+
+ return 0;
+}
+
+static int fsp_get_revision(struct psmouse *psmouse, int *rev)
+{
+ if (fsp_reg_read(psmouse, FSP_REG_REVISION, rev))
+ return -EIO;
+
+ return 0;
+}
+
+static int fsp_get_buttons(struct psmouse *psmouse, int *btn)
+{
+ static const int buttons[] = {
+ 0x16, /* Left/Middle/Right/Forward/Backward & Scroll Up/Down */
+ 0x06, /* Left/Middle/Right & Scroll Up/Down/Right/Left */
+ 0x04, /* Left/Middle/Right & Scroll Up/Down */
+ 0x02, /* Left/Middle/Right */
+ };
+ int val;
+
+ if (fsp_reg_read(psmouse, FSP_REG_TMOD_STATUS, &val) == -1)
+ return -EIO;
+
+ *btn = buttons[(val & 0x30) >> 4];
+ return 0;
+}
+
+/* Enable on-pad command tag output */
+static int fsp_opc_tag_enable(struct psmouse *psmouse, bool enable)
+{
+ int v, nv;
+ int res = 0;
+
+ if (fsp_reg_read(psmouse, FSP_REG_OPC_QDOWN, &v) == -1) {
+ dev_err(&psmouse->ps2dev.serio->dev, "Unable get OPC state.\n");
+ return -EIO;
+ }
+
+ if (enable)
+ nv = v | FSP_BIT_EN_OPC_TAG;
+ else
+ nv = v & ~FSP_BIT_EN_OPC_TAG;
+
+ /* only write if necessary */
+ if (nv != v) {
+ fsp_reg_write_enable(psmouse, true);
+ res = fsp_reg_write(psmouse, FSP_REG_OPC_QDOWN, nv);
+ fsp_reg_write_enable(psmouse, false);
+ }
+
+ if (res != 0) {
+ dev_err(&psmouse->ps2dev.serio->dev,
+ "Unable to enable OPC tag.\n");
+ res = -EIO;
+ }
+
+ return res;
+}
+
+static int fsp_onpad_vscr(struct psmouse *psmouse, bool enable)
+{
+ struct fsp_data *pad = psmouse->private;
+ int val;
+
+ if (fsp_reg_read(psmouse, FSP_REG_ONPAD_CTL, &val))
+ return -EIO;
+
+ pad->vscroll = enable;
+
+ if (enable)
+ val |= (FSP_BIT_FIX_VSCR | FSP_BIT_ONPAD_ENABLE);
+ else
+ val &= ~FSP_BIT_FIX_VSCR;
+
+ if (fsp_reg_write(psmouse, FSP_REG_ONPAD_CTL, val))
+ return -EIO;
+
+ return 0;
+}
+
+static int fsp_onpad_hscr(struct psmouse *psmouse, bool enable)
+{
+ struct fsp_data *pad = psmouse->private;
+ int val, v2;
+
+ if (fsp_reg_read(psmouse, FSP_REG_ONPAD_CTL, &val))
+ return -EIO;
+
+ if (fsp_reg_read(psmouse, FSP_REG_SYSCTL5, &v2))
+ return -EIO;
+
+ pad->hscroll = enable;
+
+ if (enable) {
+ val |= (FSP_BIT_FIX_HSCR | FSP_BIT_ONPAD_ENABLE);
+ v2 |= FSP_BIT_EN_MSID6;
+ } else {
+ val &= ~FSP_BIT_FIX_HSCR;
+ v2 &= ~(FSP_BIT_EN_MSID6 | FSP_BIT_EN_MSID7 | FSP_BIT_EN_MSID8);
+ }
+
+ if (fsp_reg_write(psmouse, FSP_REG_ONPAD_CTL, val))
+ return -EIO;
+
+ /* reconfigure horizontal scrolling packet output */
+ if (fsp_reg_write(psmouse, FSP_REG_SYSCTL5, v2))
+ return -EIO;
+
+ return 0;
+}
+
+/*
+ * Write device specific initial parameters.
+ *
+ * ex: 0xab 0xcd - write oxcd into register 0xab
+ */
+static ssize_t fsp_attr_set_setreg(struct psmouse *psmouse, void *data,
+ const char *buf, size_t count)
+{
+ unsigned long reg, val;
+ char *rest;
+ ssize_t retval;
+
+ reg = simple_strtoul(buf, &rest, 16);
+ if (rest == buf || *rest != ' ' || reg > 0xff)
+ return -EINVAL;
+
+ if (strict_strtoul(rest + 1, 16, &val) || val > 0xff)
+ return -EINVAL;
+
+ if (fsp_reg_write_enable(psmouse, true))
+ return -EIO;
+
+ retval = fsp_reg_write(psmouse, reg, val) < 0 ? -EIO : count;
+
+ fsp_reg_write_enable(psmouse, false);
+
+ return count;
+}
+
+PSMOUSE_DEFINE_WO_ATTR(setreg, S_IWUSR, NULL, fsp_attr_set_setreg);
+
+static ssize_t fsp_attr_show_getreg(struct psmouse *psmouse,
+ void *data, char *buf)
+{
+ struct fsp_data *pad = psmouse->private;
+
+ return sprintf(buf, "%02x%02x\n", pad->last_reg, pad->last_val);
+}
+
+/*
+ * Read a register from device.
+ *
+ * ex: 0xab -- read content from register 0xab
+ */
+static ssize_t fsp_attr_set_getreg(struct psmouse *psmouse, void *data,
+ const char *buf, size_t count)
+{
+ struct fsp_data *pad = psmouse->private;
+ unsigned long reg;
+ int val;
+
+ if (strict_strtoul(buf, 16, ®) || reg > 0xff)
+ return -EINVAL;
+
+ if (fsp_reg_read(psmouse, reg, &val))
+ return -EIO;
+
+ pad->last_reg = reg;
+ pad->last_val = val;
+
+ return count;
+}
+
+PSMOUSE_DEFINE_ATTR(getreg, S_IWUSR | S_IRUGO, NULL,
+ fsp_attr_show_getreg, fsp_attr_set_getreg);
+
+static ssize_t fsp_attr_show_pagereg(struct psmouse *psmouse,
+ void *data, char *buf)
+{
+ int val = 0;
+
+ if (fsp_page_reg_read(psmouse, &val))
+ return -EIO;
+
+ return sprintf(buf, "%02x\n", val);
+}
+
+static ssize_t fsp_attr_set_pagereg(struct psmouse *psmouse, void *data,
+ const char *buf, size_t count)
+{
+ unsigned long val;
+
+ if (strict_strtoul(buf, 16, &val) || val > 0xff)
+ return -EINVAL;
+
+ if (fsp_page_reg_write(psmouse, val))
+ return -EIO;
+
+ return count;
+}
+
+PSMOUSE_DEFINE_ATTR(page, S_IWUSR | S_IRUGO, NULL,
+ fsp_attr_show_pagereg, fsp_attr_set_pagereg);
+
+static ssize_t fsp_attr_show_vscroll(struct psmouse *psmouse,
+ void *data, char *buf)
+{
+ struct fsp_data *pad = psmouse->private;
+
+ return sprintf(buf, "%d\n", pad->vscroll);
+}
+
+static ssize_t fsp_attr_set_vscroll(struct psmouse *psmouse, void *data,
+ const char *buf, size_t count)
+{
+ unsigned long val;
+
+ if (strict_strtoul(buf, 10, &val) || val > 1)
+ return -EINVAL;
+
+ fsp_onpad_vscr(psmouse, val);
+
+ return count;
+}
+
+PSMOUSE_DEFINE_ATTR(vscroll, S_IWUSR | S_IRUGO, NULL,
+ fsp_attr_show_vscroll, fsp_attr_set_vscroll);
+
+static ssize_t fsp_attr_show_hscroll(struct psmouse *psmouse,
+ void *data, char *buf)
+{
+ struct fsp_data *pad = psmouse->private;
+
+ return sprintf(buf, "%d\n", pad->hscroll);
+}
+
+static ssize_t fsp_attr_set_hscroll(struct psmouse *psmouse, void *data,
+ const char *buf, size_t count)
+{
+ unsigned long val;
+
+ if (strict_strtoul(buf, 10, &val) || val > 1)
+ return -EINVAL;
+
+ fsp_onpad_hscr(psmouse, val);
+
+ return count;
+}
+
+PSMOUSE_DEFINE_ATTR(hscroll, S_IWUSR | S_IRUGO, NULL,
+ fsp_attr_show_hscroll, fsp_attr_set_hscroll);
+
+static ssize_t fsp_attr_show_flags(struct psmouse *psmouse,
+ void *data, char *buf)
+{
+ struct fsp_data *pad = psmouse->private;
+
+ return sprintf(buf, "%c\n",
+ pad->flags & FSPDRV_FLAG_EN_OPC ? 'C' : 'c');
+}
+
+static ssize_t fsp_attr_set_flags(struct psmouse *psmouse, void *data,
+ const char *buf, size_t count)
+{
+ struct fsp_data *pad = psmouse->private;
+ size_t i;
+
+ for (i = 0; i < count; i++) {
+ switch (buf[i]) {
+ case 'C':
+ pad->flags |= FSPDRV_FLAG_EN_OPC;
+ break;
+ case 'c':
+ pad->flags &= ~FSPDRV_FLAG_EN_OPC;
+ break;
+ default:
+ return -EINVAL;
+ }
+ }
+ return count;
+}
+
+PSMOUSE_DEFINE_ATTR(flags, S_IWUSR | S_IRUGO, NULL,
+ fsp_attr_show_flags, fsp_attr_set_flags);
+
+static ssize_t fsp_attr_show_ver(struct psmouse *psmouse,
+ void *data, char *buf)
+{
+ return sprintf(buf, "Sentelic FSP kernel module %s\n", fsp_drv_ver);
+}
+
+PSMOUSE_DEFINE_RO_ATTR(ver, S_IRUGO, NULL, fsp_attr_show_ver);
+
+static struct attribute *fsp_attributes[] = {
+ &psmouse_attr_setreg.dattr.attr,
+ &psmouse_attr_getreg.dattr.attr,
+ &psmouse_attr_page.dattr.attr,
+ &psmouse_attr_vscroll.dattr.attr,
+ &psmouse_attr_hscroll.dattr.attr,
+ &psmouse_attr_flags.dattr.attr,
+ &psmouse_attr_ver.dattr.attr,
+ NULL
+};
+
+static struct attribute_group fsp_attribute_group = {
+ .attrs = fsp_attributes,
+};
+
+#ifdef FSP_DEBUG
+static void fsp_packet_debug(unsigned char packet[])
+{
+ static unsigned int ps2_packet_cnt;
+ static unsigned int ps2_last_second;
+ unsigned int jiffies_msec;
+
+ ps2_packet_cnt++;
+ jiffies_msec = jiffies_to_msecs(jiffies);
+ psmouse_dbg(psmouse,
+ "%08dms PS/2 packets: %02x, %02x, %02x, %02x\n",
+ jiffies_msec, packet[0], packet[1], packet[2], packet[3]);
+
+ if (jiffies_msec - ps2_last_second > 1000) {
+ psmouse_dbg(psmouse, "PS/2 packets/sec = %d\n", ps2_packet_cnt);
+ ps2_packet_cnt = 0;
+ ps2_last_second = jiffies_msec;
+ }
+}
+#else
+static void fsp_packet_debug(unsigned char packet[])
+{
+}
+#endif
+
+static psmouse_ret_t fsp_process_byte(struct psmouse *psmouse)
+{
+ struct input_dev *dev = psmouse->dev;
+ struct fsp_data *ad = psmouse->private;
+ unsigned char *packet = psmouse->packet;
+ unsigned char button_status = 0, lscroll = 0, rscroll = 0;
+ int rel_x, rel_y;
+
+ if (psmouse->pktcnt < 4)
+ return PSMOUSE_GOOD_DATA;
+
+ /*
+ * Full packet accumulated, process it
+ */
+
+ switch (psmouse->packet[0] >> FSP_PKT_TYPE_SHIFT) {
+ case FSP_PKT_TYPE_ABS:
+ dev_warn(&psmouse->ps2dev.serio->dev,
+ "Unexpected absolute mode packet, ignored.\n");
+ break;
+
+ case FSP_PKT_TYPE_NORMAL_OPC:
+ /* on-pad click, filter it if necessary */
+ if ((ad->flags & FSPDRV_FLAG_EN_OPC) != FSPDRV_FLAG_EN_OPC)
+ packet[0] &= ~BIT(0);
+ /* fall through */
+
+ case FSP_PKT_TYPE_NORMAL:
+ /* normal packet */
+ /* special packet data translation from on-pad packets */
+ if (packet[3] != 0) {
+ if (packet[3] & BIT(0))
+ button_status |= 0x01; /* wheel down */
+ if (packet[3] & BIT(1))
+ button_status |= 0x0f; /* wheel up */
+ if (packet[3] & BIT(2))
+ button_status |= BIT(4);/* horizontal left */
+ if (packet[3] & BIT(3))
+ button_status |= BIT(5);/* horizontal right */
+ /* push back to packet queue */
+ if (button_status != 0)
+ packet[3] = button_status;
+ rscroll = (packet[3] >> 4) & 1;
+ lscroll = (packet[3] >> 5) & 1;
+ }
+ /*
+ * Processing wheel up/down and extra button events
+ */
+ input_report_rel(dev, REL_WHEEL,
+ (int)(packet[3] & 8) - (int)(packet[3] & 7));
+ input_report_rel(dev, REL_HWHEEL, lscroll - rscroll);
+ input_report_key(dev, BTN_BACK, lscroll);
+ input_report_key(dev, BTN_FORWARD, rscroll);
+
+ /*
+ * Standard PS/2 Mouse
+ */
+ input_report_key(dev, BTN_LEFT, packet[0] & 1);
+ input_report_key(dev, BTN_MIDDLE, (packet[0] >> 2) & 1);
+ input_report_key(dev, BTN_RIGHT, (packet[0] >> 1) & 1);
+
+ rel_x = packet[1] ? (int)packet[1] - (int)((packet[0] << 4) & 0x100) : 0;
+ rel_y = packet[2] ? (int)((packet[0] << 3) & 0x100) - (int)packet[2] : 0;
+
+ input_report_rel(dev, REL_X, rel_x);
+ input_report_rel(dev, REL_Y, rel_y);
+ break;
+ }
+
+ input_sync(dev);
+
+ fsp_packet_debug(packet);
+
+ return PSMOUSE_FULL_PACKET;
+}
+
+static int fsp_activate_protocol(struct psmouse *psmouse)
+{
+ struct fsp_data *pad = psmouse->private;
+ struct ps2dev *ps2dev = &psmouse->ps2dev;
+ unsigned char param[2];
+ int val;
+
+ /*
+ * Standard procedure to enter FSP Intellimouse mode
+ * (scrolling wheel, 4th and 5th buttons)
+ */
+ param[0] = 200;
+ ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE);
+ param[0] = 200;
+ ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE);
+ param[0] = 80;
+ ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE);
+
+ ps2_command(ps2dev, param, PSMOUSE_CMD_GETID);
+ if (param[0] != 0x04) {
+ dev_err(&psmouse->ps2dev.serio->dev,
+ "Unable to enable 4 bytes packet format.\n");
+ return -EIO;
+ }
+
+ if (fsp_reg_read(psmouse, FSP_REG_SYSCTL5, &val)) {
+ dev_err(&psmouse->ps2dev.serio->dev,
+ "Unable to read SYSCTL5 register.\n");
+ return -EIO;
+ }
+
+ val &= ~(FSP_BIT_EN_MSID7 | FSP_BIT_EN_MSID8 | FSP_BIT_EN_AUTO_MSID8);
+ /* Ensure we are not in absolute mode */
+ val &= ~FSP_BIT_EN_PKT_G0;
+ if (pad->buttons == 0x06) {
+ /* Left/Middle/Right & Scroll Up/Down/Right/Left */
+ val |= FSP_BIT_EN_MSID6;
+ }
+
+ if (fsp_reg_write(psmouse, FSP_REG_SYSCTL5, val)) {
+ dev_err(&psmouse->ps2dev.serio->dev,
+ "Unable to set up required mode bits.\n");
+ return -EIO;
+ }
+
+ /*
+ * Enable OPC tags such that driver can tell the difference between
+ * on-pad and real button click
+ */
+ if (fsp_opc_tag_enable(psmouse, true))
+ dev_warn(&psmouse->ps2dev.serio->dev,
+ "Failed to enable OPC tag mode.\n");
+
+ /* Enable on-pad vertical and horizontal scrolling */
+ fsp_onpad_vscr(psmouse, true);
+ fsp_onpad_hscr(psmouse, true);
+
+ return 0;
+}
+
+int fsp_detect(struct psmouse *psmouse, bool set_properties)
+{
+ int id;
+
+ if (fsp_reg_read(psmouse, FSP_REG_DEVICE_ID, &id))
+ return -EIO;
+
+ if (id != 0x01)
+ return -ENODEV;
+
+ if (set_properties) {
+ psmouse->vendor = "Sentelic";
+ psmouse->name = "FingerSensingPad";
+ }
+
+ return 0;
+}
+
+static void fsp_reset(struct psmouse *psmouse)
+{
+ fsp_opc_tag_enable(psmouse, false);
+ fsp_onpad_vscr(psmouse, false);
+ fsp_onpad_hscr(psmouse, false);
+}
+
+static void fsp_disconnect(struct psmouse *psmouse)
+{
+ sysfs_remove_group(&psmouse->ps2dev.serio->dev.kobj,
+ &fsp_attribute_group);
+
+ fsp_reset(psmouse);
+ kfree(psmouse->private);
+}
+
+static int fsp_reconnect(struct psmouse *psmouse)
+{
+ int version;
+
+ if (fsp_detect(psmouse, 0))
+ return -ENODEV;
+
+ if (fsp_get_version(psmouse, &version))
+ return -ENODEV;
+
+ if (fsp_activate_protocol(psmouse))
+ return -EIO;
+
+ return 0;
+}
+
+int fsp_init(struct psmouse *psmouse)
+{
+ struct fsp_data *priv;
+ int ver, rev, buttons;
+ int error;
+
+ if (fsp_get_version(psmouse, &ver) ||
+ fsp_get_revision(psmouse, &rev) ||
+ fsp_get_buttons(psmouse, &buttons)) {
+ return -ENODEV;
+ }
+
+ psmouse_info(psmouse,
+ "Finger Sensing Pad, hw: %d.%d.%d, sw: %s, buttons: %d\n",
+ ver >> 4, ver & 0x0F, rev, fsp_drv_ver, buttons & 7);
+
+ psmouse->private = priv = kzalloc(sizeof(struct fsp_data), GFP_KERNEL);
+ if (!priv)
+ return -ENOMEM;
+
+ priv->ver = ver;
+ priv->rev = rev;
+ priv->buttons = buttons;
+
+ /* enable on-pad click by default */
+ priv->flags |= FSPDRV_FLAG_EN_OPC;
+
+ /* Set up various supported input event bits */
+ __set_bit(BTN_MIDDLE, psmouse->dev->keybit);
+ __set_bit(BTN_BACK, psmouse->dev->keybit);
+ __set_bit(BTN_FORWARD, psmouse->dev->keybit);
+ __set_bit(REL_WHEEL, psmouse->dev->relbit);
+ __set_bit(REL_HWHEEL, psmouse->dev->relbit);
+
+ psmouse->protocol_handler = fsp_process_byte;
+ psmouse->disconnect = fsp_disconnect;
+ psmouse->reconnect = fsp_reconnect;
+ psmouse->cleanup = fsp_reset;
+ psmouse->pktsize = 4;
+
+ /* set default packet output based on number of buttons we found */
+ error = fsp_activate_protocol(psmouse);
+ if (error)
+ goto err_out;
+
+ error = sysfs_create_group(&psmouse->ps2dev.serio->dev.kobj,
+ &fsp_attribute_group);
+ if (error) {
+ dev_err(&psmouse->ps2dev.serio->dev,
+ "Failed to create sysfs attributes (%d)", error);
+ goto err_out;
+ }
+
+ return 0;
+
+ err_out:
+ kfree(psmouse->private);
+ psmouse->private = NULL;
+ return error;
+}
diff --git a/drivers/input/mouse/sentelic.h b/drivers/input/mouse/sentelic.h
new file mode 100644
index 0000000..2e4af24
--- /dev/null
+++ b/drivers/input/mouse/sentelic.h
@@ -0,0 +1,99 @@
+/*-
+ * Finger Sensing Pad PS/2 mouse driver.
+ *
+ * Copyright (C) 2005-2007 Asia Vital Components Co., Ltd.
+ * Copyright (C) 2005-2011 Tai-hwa Liang, Sentelic Corporation.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#ifndef __SENTELIC_H
+#define __SENTELIC_H
+
+/* Finger-sensing Pad information registers */
+#define FSP_REG_DEVICE_ID 0x00
+#define FSP_REG_VERSION 0x01
+#define FSP_REG_REVISION 0x04
+#define FSP_REG_TMOD_STATUS1 0x0B
+#define FSP_BIT_NO_ROTATION BIT(3)
+#define FSP_REG_PAGE_CTRL 0x0F
+
+/* Finger-sensing Pad control registers */
+#define FSP_REG_SYSCTL1 0x10
+#define FSP_BIT_EN_REG_CLK BIT(5)
+#define FSP_REG_TMOD_STATUS 0x20
+#define FSP_REG_OPC_QDOWN 0x31
+#define FSP_BIT_EN_OPC_TAG BIT(7)
+#define FSP_REG_OPTZ_XLO 0x34
+#define FSP_REG_OPTZ_XHI 0x35
+#define FSP_REG_OPTZ_YLO 0x36
+#define FSP_REG_OPTZ_YHI 0x37
+#define FSP_REG_SYSCTL5 0x40
+#define FSP_BIT_90_DEGREE BIT(0)
+#define FSP_BIT_EN_MSID6 BIT(1)
+#define FSP_BIT_EN_MSID7 BIT(2)
+#define FSP_BIT_EN_MSID8 BIT(3)
+#define FSP_BIT_EN_AUTO_MSID8 BIT(5)
+#define FSP_BIT_EN_PKT_G0 BIT(6)
+
+#define FSP_REG_ONPAD_CTL 0x43
+#define FSP_BIT_ONPAD_ENABLE BIT(0)
+#define FSP_BIT_ONPAD_FBBB BIT(1)
+#define FSP_BIT_FIX_VSCR BIT(3)
+#define FSP_BIT_FIX_HSCR BIT(5)
+#define FSP_BIT_DRAG_LOCK BIT(6)
+
+/* Finger-sensing Pad packet formating related definitions */
+
+/* absolute packet type */
+#define FSP_PKT_TYPE_NORMAL (0x00)
+#define FSP_PKT_TYPE_ABS (0x01)
+#define FSP_PKT_TYPE_NOTIFY (0x02)
+#define FSP_PKT_TYPE_NORMAL_OPC (0x03)
+#define FSP_PKT_TYPE_SHIFT (6)
+
+#ifdef __KERNEL__
+
+struct fsp_data {
+ unsigned char ver; /* hardware version */
+ unsigned char rev; /* hardware revison */
+ unsigned char buttons; /* Number of buttons */
+ unsigned int flags;
+#define FSPDRV_FLAG_EN_OPC (0x001) /* enable on-pad clicking */
+
+ bool vscroll; /* Vertical scroll zone enabled */
+ bool hscroll; /* Horizontal scroll zone enabled */
+
+ unsigned char last_reg; /* Last register we requested read from */
+ unsigned char last_val;
+};
+
+#ifdef CONFIG_MOUSE_PS2_SENTELIC
+extern int fsp_detect(struct psmouse *psmouse, bool set_properties);
+extern int fsp_init(struct psmouse *psmouse);
+#else
+inline int fsp_detect(struct psmouse *psmouse, bool set_properties)
+{
+ return -ENOSYS;
+}
+inline int fsp_init(struct psmouse *psmouse)
+{
+ return -ENOSYS;
+}
+#endif
+
+#endif /* __KERNEL__ */
+
+#endif /* !__SENTELIC_H */
diff --git a/drivers/input/mouse/sermouse.c b/drivers/input/mouse/sermouse.c
new file mode 100644
index 0000000..17ff137b
--- /dev/null
+++ b/drivers/input/mouse/sermouse.c
@@ -0,0 +1,369 @@
+/*
+ * Copyright (c) 1999-2001 Vojtech Pavlik
+ */
+
+/*
+ * Serial mouse driver for Linux
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * Should you need to contact me, the author, you can do so either by
+ * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
+ * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
+ */
+
+#include <linux/delay.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/interrupt.h>
+#include <linux/input.h>
+#include <linux/serio.h>
+#include <linux/init.h>
+
+#define DRIVER_DESC "Serial mouse driver"
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+static const char *sermouse_protocols[] = { "None", "Mouse Systems Mouse", "Sun Mouse", "Microsoft Mouse",
+ "Logitech M+ Mouse", "Microsoft MZ Mouse", "Logitech MZ+ Mouse",
+ "Logitech MZ++ Mouse"};
+
+struct sermouse {
+ struct input_dev *dev;
+ signed char buf[8];
+ unsigned char count;
+ unsigned char type;
+ unsigned long last;
+ char phys[32];
+};
+
+/*
+ * sermouse_process_msc() analyzes the incoming MSC/Sun bytestream and
+ * applies some prediction to the data, resulting in 96 updates per
+ * second, which is as good as a PS/2 or USB mouse.
+ */
+
+static void sermouse_process_msc(struct sermouse *sermouse, signed char data)
+{
+ struct input_dev *dev = sermouse->dev;
+ signed char *buf = sermouse->buf;
+
+ switch (sermouse->count) {
+
+ case 0:
+ if ((data & 0xf8) != 0x80)
+ return;
+ input_report_key(dev, BTN_LEFT, !(data & 4));
+ input_report_key(dev, BTN_RIGHT, !(data & 1));
+ input_report_key(dev, BTN_MIDDLE, !(data & 2));
+ break;
+
+ case 1:
+ case 3:
+ input_report_rel(dev, REL_X, data / 2);
+ input_report_rel(dev, REL_Y, -buf[1]);
+ buf[0] = data - data / 2;
+ break;
+
+ case 2:
+ case 4:
+ input_report_rel(dev, REL_X, buf[0]);
+ input_report_rel(dev, REL_Y, buf[1] - data);
+ buf[1] = data / 2;
+ break;
+ }
+
+ input_sync(dev);
+
+ if (++sermouse->count == 5)
+ sermouse->count = 0;
+}
+
+/*
+ * sermouse_process_ms() anlyzes the incoming MS(Z/+/++) bytestream and
+ * generates events. With prediction it gets 80 updates/sec, assuming
+ * standard 3-byte packets and 1200 bps.
+ */
+
+static void sermouse_process_ms(struct sermouse *sermouse, signed char data)
+{
+ struct input_dev *dev = sermouse->dev;
+ signed char *buf = sermouse->buf;
+
+ if (data & 0x40)
+ sermouse->count = 0;
+ else if (sermouse->count == 0)
+ return;
+
+ switch (sermouse->count) {
+
+ case 0:
+ buf[1] = data;
+ input_report_key(dev, BTN_LEFT, (data >> 5) & 1);
+ input_report_key(dev, BTN_RIGHT, (data >> 4) & 1);
+ break;
+
+ case 1:
+ buf[2] = data;
+ data = (signed char) (((buf[1] << 6) & 0xc0) | (data & 0x3f));
+ input_report_rel(dev, REL_X, data / 2);
+ input_report_rel(dev, REL_Y, buf[4]);
+ buf[3] = data - data / 2;
+ break;
+
+ case 2:
+ /* Guessing the state of the middle button on 3-button MS-protocol mice - ugly. */
+ if ((sermouse->type == SERIO_MS) && !data && !buf[2] && !((buf[0] & 0xf0) ^ buf[1]))
+ input_report_key(dev, BTN_MIDDLE, !test_bit(BTN_MIDDLE, dev->key));
+ buf[0] = buf[1];
+
+ data = (signed char) (((buf[1] << 4) & 0xc0) | (data & 0x3f));
+ input_report_rel(dev, REL_X, buf[3]);
+ input_report_rel(dev, REL_Y, data - buf[4]);
+ buf[4] = data / 2;
+ break;
+
+ case 3:
+
+ switch (sermouse->type) {
+
+ case SERIO_MS:
+ sermouse->type = SERIO_MP;
+
+ case SERIO_MP:
+ if ((data >> 2) & 3) break; /* M++ Wireless Extension packet. */
+ input_report_key(dev, BTN_MIDDLE, (data >> 5) & 1);
+ input_report_key(dev, BTN_SIDE, (data >> 4) & 1);
+ break;
+
+ case SERIO_MZP:
+ case SERIO_MZPP:
+ input_report_key(dev, BTN_SIDE, (data >> 5) & 1);
+
+ case SERIO_MZ:
+ input_report_key(dev, BTN_MIDDLE, (data >> 4) & 1);
+ input_report_rel(dev, REL_WHEEL, (data & 8) - (data & 7));
+ break;
+ }
+
+ break;
+
+ case 4:
+ case 6: /* MZ++ packet type. We can get these bytes for M++ too but we ignore them later. */
+ buf[1] = (data >> 2) & 0x0f;
+ break;
+
+ case 5:
+ case 7: /* Ignore anything besides MZ++ */
+ if (sermouse->type != SERIO_MZPP)
+ break;
+
+ switch (buf[1]) {
+
+ case 1: /* Extra mouse info */
+
+ input_report_key(dev, BTN_SIDE, (data >> 4) & 1);
+ input_report_key(dev, BTN_EXTRA, (data >> 5) & 1);
+ input_report_rel(dev, data & 0x80 ? REL_HWHEEL : REL_WHEEL, (data & 7) - (data & 8));
+
+ break;
+
+ default: /* We don't decode anything else yet. */
+
+ printk(KERN_WARNING
+ "sermouse.c: Received MZ++ packet %x, don't know how to handle.\n", buf[1]);
+ break;
+ }
+
+ break;
+ }
+
+ input_sync(dev);
+
+ sermouse->count++;
+}
+
+/*
+ * sermouse_interrupt() handles incoming characters, either gathering them into
+ * packets or passing them to the command routine as command output.
+ */
+
+static irqreturn_t sermouse_interrupt(struct serio *serio,
+ unsigned char data, unsigned int flags)
+{
+ struct sermouse *sermouse = serio_get_drvdata(serio);
+
+ if (time_after(jiffies, sermouse->last + HZ/10))
+ sermouse->count = 0;
+
+ sermouse->last = jiffies;
+
+ if (sermouse->type > SERIO_SUN)
+ sermouse_process_ms(sermouse, data);
+ else
+ sermouse_process_msc(sermouse, data);
+
+ return IRQ_HANDLED;
+}
+
+/*
+ * sermouse_disconnect() cleans up after we don't want talk
+ * to the mouse anymore.
+ */
+
+static void sermouse_disconnect(struct serio *serio)
+{
+ struct sermouse *sermouse = serio_get_drvdata(serio);
+
+ serio_close(serio);
+ serio_set_drvdata(serio, NULL);
+ input_unregister_device(sermouse->dev);
+ kfree(sermouse);
+}
+
+/*
+ * sermouse_connect() is a callback form the serio module when
+ * an unhandled serio port is found.
+ */
+
+static int sermouse_connect(struct serio *serio, struct serio_driver *drv)
+{
+ struct sermouse *sermouse;
+ struct input_dev *input_dev;
+ unsigned char c = serio->id.extra;
+ int err = -ENOMEM;
+
+ sermouse = kzalloc(sizeof(struct sermouse), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!sermouse || !input_dev)
+ goto fail1;
+
+ sermouse->dev = input_dev;
+ snprintf(sermouse->phys, sizeof(sermouse->phys), "%s/input0", serio->phys);
+ sermouse->type = serio->id.proto;
+
+ input_dev->name = sermouse_protocols[sermouse->type];
+ input_dev->phys = sermouse->phys;
+ input_dev->id.bustype = BUS_RS232;
+ input_dev->id.vendor = sermouse->type;
+ input_dev->id.product = c;
+ input_dev->id.version = 0x0100;
+ input_dev->dev.parent = &serio->dev;
+
+ input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL);
+ input_dev->keybit[BIT_WORD(BTN_MOUSE)] = BIT_MASK(BTN_LEFT) |
+ BIT_MASK(BTN_RIGHT);
+ input_dev->relbit[0] = BIT_MASK(REL_X) | BIT_MASK(REL_Y);
+
+ if (c & 0x01) set_bit(BTN_MIDDLE, input_dev->keybit);
+ if (c & 0x02) set_bit(BTN_SIDE, input_dev->keybit);
+ if (c & 0x04) set_bit(BTN_EXTRA, input_dev->keybit);
+ if (c & 0x10) set_bit(REL_WHEEL, input_dev->relbit);
+ if (c & 0x20) set_bit(REL_HWHEEL, input_dev->relbit);
+
+ serio_set_drvdata(serio, sermouse);
+
+ err = serio_open(serio, drv);
+ if (err)
+ goto fail2;
+
+ err = input_register_device(sermouse->dev);
+ if (err)
+ goto fail3;
+
+ return 0;
+
+ fail3: serio_close(serio);
+ fail2: serio_set_drvdata(serio, NULL);
+ fail1: input_free_device(input_dev);
+ kfree(sermouse);
+ return err;
+}
+
+static struct serio_device_id sermouse_serio_ids[] = {
+ {
+ .type = SERIO_RS232,
+ .proto = SERIO_MSC,
+ .id = SERIO_ANY,
+ .extra = SERIO_ANY,
+ },
+ {
+ .type = SERIO_RS232,
+ .proto = SERIO_SUN,
+ .id = SERIO_ANY,
+ .extra = SERIO_ANY,
+ },
+ {
+ .type = SERIO_RS232,
+ .proto = SERIO_MS,
+ .id = SERIO_ANY,
+ .extra = SERIO_ANY,
+ },
+ {
+ .type = SERIO_RS232,
+ .proto = SERIO_MP,
+ .id = SERIO_ANY,
+ .extra = SERIO_ANY,
+ },
+ {
+ .type = SERIO_RS232,
+ .proto = SERIO_MZ,
+ .id = SERIO_ANY,
+ .extra = SERIO_ANY,
+ },
+ {
+ .type = SERIO_RS232,
+ .proto = SERIO_MZP,
+ .id = SERIO_ANY,
+ .extra = SERIO_ANY,
+ },
+ {
+ .type = SERIO_RS232,
+ .proto = SERIO_MZPP,
+ .id = SERIO_ANY,
+ .extra = SERIO_ANY,
+ },
+ { 0 }
+};
+
+MODULE_DEVICE_TABLE(serio, sermouse_serio_ids);
+
+static struct serio_driver sermouse_drv = {
+ .driver = {
+ .name = "sermouse",
+ },
+ .description = DRIVER_DESC,
+ .id_table = sermouse_serio_ids,
+ .interrupt = sermouse_interrupt,
+ .connect = sermouse_connect,
+ .disconnect = sermouse_disconnect,
+};
+
+static int __init sermouse_init(void)
+{
+ return serio_register_driver(&sermouse_drv);
+}
+
+static void __exit sermouse_exit(void)
+{
+ serio_unregister_driver(&sermouse_drv);
+}
+
+module_init(sermouse_init);
+module_exit(sermouse_exit);
diff --git a/drivers/input/mouse/synaptics.c b/drivers/input/mouse/synaptics.c
new file mode 100644
index 0000000..a6dcd18
--- /dev/null
+++ b/drivers/input/mouse/synaptics.c
@@ -0,0 +1,1448 @@
+/*
+ * Synaptics TouchPad PS/2 mouse driver
+ *
+ * 2003 Dmitry Torokhov <dtor@mail.ru>
+ * Added support for pass-through port. Special thanks to Peter Berg Larsen
+ * for explaining various Synaptics quirks.
+ *
+ * 2003 Peter Osterlund <petero2@telia.com>
+ * Ported to 2.5 input device infrastructure.
+ *
+ * Copyright (C) 2001 Stefan Gmeiner <riddlebox@freesurf.ch>
+ * start merging tpconfig and gpm code to a xfree-input module
+ * adding some changes and extensions (ex. 3rd and 4th button)
+ *
+ * Copyright (c) 1997 C. Scott Ananian <cananian@alumni.priceton.edu>
+ * Copyright (c) 1998-2000 Bruce Kalk <kall@compass.com>
+ * code for the special synaptics commands (from the tpconfig-source)
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * Trademarks are the property of their respective owners.
+ */
+
+#include <linux/module.h>
+#include <linux/delay.h>
+#include <linux/dmi.h>
+#include <linux/input/mt.h>
+#include <linux/serio.h>
+#include <linux/libps2.h>
+#include <linux/slab.h>
+#include "psmouse.h"
+#include "synaptics.h"
+
+/*
+ * The x/y limits are taken from the Synaptics TouchPad interfacing Guide,
+ * section 2.3.2, which says that they should be valid regardless of the
+ * actual size of the sensor.
+ * Note that newer firmware allows querying device for maximum useable
+ * coordinates.
+ */
+#define XMIN_NOMINAL 1472
+#define XMAX_NOMINAL 5472
+#define YMIN_NOMINAL 1408
+#define YMAX_NOMINAL 4448
+
+/*
+ * Synaptics touchpads report the y coordinate from bottom to top, which is
+ * opposite from what userspace expects.
+ * This function is used to invert y before reporting.
+ */
+static int synaptics_invert_y(int y)
+{
+ return YMAX_NOMINAL + YMIN_NOMINAL - y;
+}
+
+
+/*****************************************************************************
+ * Stuff we need even when we do not want native Synaptics support
+ ****************************************************************************/
+
+/*
+ * Set the synaptics touchpad mode byte by special commands
+ */
+static int synaptics_mode_cmd(struct psmouse *psmouse, unsigned char mode)
+{
+ unsigned char param[1];
+
+ if (psmouse_sliced_command(psmouse, mode))
+ return -1;
+ param[0] = SYN_PS_SET_MODE2;
+ if (ps2_command(&psmouse->ps2dev, param, PSMOUSE_CMD_SETRATE))
+ return -1;
+ return 0;
+}
+
+int synaptics_detect(struct psmouse *psmouse, bool set_properties)
+{
+ struct ps2dev *ps2dev = &psmouse->ps2dev;
+ unsigned char param[4];
+
+ param[0] = 0;
+
+ ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES);
+ ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES);
+ ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES);
+ ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES);
+ ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO);
+
+ if (param[1] != 0x47)
+ return -ENODEV;
+
+ if (set_properties) {
+ psmouse->vendor = "Synaptics";
+ psmouse->name = "TouchPad";
+ }
+
+ return 0;
+}
+
+void synaptics_reset(struct psmouse *psmouse)
+{
+ /* reset touchpad back to relative mode, gestures enabled */
+ synaptics_mode_cmd(psmouse, 0);
+}
+
+#ifdef CONFIG_MOUSE_PS2_SYNAPTICS
+
+/*****************************************************************************
+ * Synaptics communications functions
+ ****************************************************************************/
+
+/*
+ * Send a command to the synpatics touchpad by special commands
+ */
+static int synaptics_send_cmd(struct psmouse *psmouse, unsigned char c, unsigned char *param)
+{
+ if (psmouse_sliced_command(psmouse, c))
+ return -1;
+ if (ps2_command(&psmouse->ps2dev, param, PSMOUSE_CMD_GETINFO))
+ return -1;
+ return 0;
+}
+
+/*
+ * Read the model-id bytes from the touchpad
+ * see also SYN_MODEL_* macros
+ */
+static int synaptics_model_id(struct psmouse *psmouse)
+{
+ struct synaptics_data *priv = psmouse->private;
+ unsigned char mi[3];
+
+ if (synaptics_send_cmd(psmouse, SYN_QUE_MODEL, mi))
+ return -1;
+ priv->model_id = (mi[0]<<16) | (mi[1]<<8) | mi[2];
+ return 0;
+}
+
+/*
+ * Read the capability-bits from the touchpad
+ * see also the SYN_CAP_* macros
+ */
+static int synaptics_capability(struct psmouse *psmouse)
+{
+ struct synaptics_data *priv = psmouse->private;
+ unsigned char cap[3];
+
+ if (synaptics_send_cmd(psmouse, SYN_QUE_CAPABILITIES, cap))
+ return -1;
+ priv->capabilities = (cap[0] << 16) | (cap[1] << 8) | cap[2];
+ priv->ext_cap = priv->ext_cap_0c = 0;
+
+ /*
+ * Older firmwares had submodel ID fixed to 0x47
+ */
+ if (SYN_ID_FULL(priv->identity) < 0x705 &&
+ SYN_CAP_SUBMODEL_ID(priv->capabilities) != 0x47) {
+ return -1;
+ }
+
+ /*
+ * Unless capExtended is set the rest of the flags should be ignored
+ */
+ if (!SYN_CAP_EXTENDED(priv->capabilities))
+ priv->capabilities = 0;
+
+ if (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 1) {
+ if (synaptics_send_cmd(psmouse, SYN_QUE_EXT_CAPAB, cap)) {
+ psmouse_warn(psmouse,
+ "device claims to have extended capabilities, but I'm not able to read them.\n");
+ } else {
+ priv->ext_cap = (cap[0] << 16) | (cap[1] << 8) | cap[2];
+
+ /*
+ * if nExtBtn is greater than 8 it should be considered
+ * invalid and treated as 0
+ */
+ if (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) > 8)
+ priv->ext_cap &= 0xff0fff;
+ }
+ }
+
+ if (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 4) {
+ if (synaptics_send_cmd(psmouse, SYN_QUE_EXT_CAPAB_0C, cap)) {
+ psmouse_warn(psmouse,
+ "device claims to have extended capability 0x0c, but I'm not able to read it.\n");
+ } else {
+ priv->ext_cap_0c = (cap[0] << 16) | (cap[1] << 8) | cap[2];
+ }
+ }
+
+ return 0;
+}
+
+/*
+ * Identify Touchpad
+ * See also the SYN_ID_* macros
+ */
+static int synaptics_identify(struct psmouse *psmouse)
+{
+ struct synaptics_data *priv = psmouse->private;
+ unsigned char id[3];
+
+ if (synaptics_send_cmd(psmouse, SYN_QUE_IDENTIFY, id))
+ return -1;
+ priv->identity = (id[0]<<16) | (id[1]<<8) | id[2];
+ if (SYN_ID_IS_SYNAPTICS(priv->identity))
+ return 0;
+ return -1;
+}
+
+/*
+ * Read touchpad resolution and maximum reported coordinates
+ * Resolution is left zero if touchpad does not support the query
+ */
+static int synaptics_resolution(struct psmouse *psmouse)
+{
+ struct synaptics_data *priv = psmouse->private;
+ unsigned char resp[3];
+
+ if (SYN_ID_MAJOR(priv->identity) < 4)
+ return 0;
+
+ if (synaptics_send_cmd(psmouse, SYN_QUE_RESOLUTION, resp) == 0) {
+ if (resp[0] != 0 && (resp[1] & 0x80) && resp[2] != 0) {
+ priv->x_res = resp[0]; /* x resolution in units/mm */
+ priv->y_res = resp[2]; /* y resolution in units/mm */
+ }
+ }
+
+ if (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 5 &&
+ SYN_CAP_MAX_DIMENSIONS(priv->ext_cap_0c)) {
+ if (synaptics_send_cmd(psmouse, SYN_QUE_EXT_MAX_COORDS, resp)) {
+ psmouse_warn(psmouse,
+ "device claims to have max coordinates query, but I'm not able to read it.\n");
+ } else {
+ priv->x_max = (resp[0] << 5) | ((resp[1] & 0x0f) << 1);
+ priv->y_max = (resp[2] << 5) | ((resp[1] & 0xf0) >> 3);
+ }
+ }
+
+ if (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 7 &&
+ SYN_CAP_MIN_DIMENSIONS(priv->ext_cap_0c)) {
+ if (synaptics_send_cmd(psmouse, SYN_QUE_EXT_MIN_COORDS, resp)) {
+ psmouse_warn(psmouse,
+ "device claims to have min coordinates query, but I'm not able to read it.\n");
+ } else {
+ priv->x_min = (resp[0] << 5) | ((resp[1] & 0x0f) << 1);
+ priv->y_min = (resp[2] << 5) | ((resp[1] & 0xf0) >> 3);
+ }
+ }
+
+ return 0;
+}
+
+static int synaptics_query_hardware(struct psmouse *psmouse)
+{
+ if (synaptics_identify(psmouse))
+ return -1;
+ if (synaptics_model_id(psmouse))
+ return -1;
+ if (synaptics_capability(psmouse))
+ return -1;
+ if (synaptics_resolution(psmouse))
+ return -1;
+
+ return 0;
+}
+
+static int synaptics_set_absolute_mode(struct psmouse *psmouse)
+{
+ struct synaptics_data *priv = psmouse->private;
+
+ priv->mode = SYN_BIT_ABSOLUTE_MODE;
+ if (SYN_ID_MAJOR(priv->identity) >= 4)
+ priv->mode |= SYN_BIT_DISABLE_GESTURE;
+ if (SYN_CAP_EXTENDED(priv->capabilities))
+ priv->mode |= SYN_BIT_W_MODE;
+
+ if (synaptics_mode_cmd(psmouse, priv->mode))
+ return -1;
+
+ return 0;
+}
+
+static void synaptics_set_rate(struct psmouse *psmouse, unsigned int rate)
+{
+ struct synaptics_data *priv = psmouse->private;
+
+ if (rate >= 80) {
+ priv->mode |= SYN_BIT_HIGH_RATE;
+ psmouse->rate = 80;
+ } else {
+ priv->mode &= ~SYN_BIT_HIGH_RATE;
+ psmouse->rate = 40;
+ }
+
+ synaptics_mode_cmd(psmouse, priv->mode);
+}
+
+static int synaptics_set_advanced_gesture_mode(struct psmouse *psmouse)
+{
+ static unsigned char param = 0xc8;
+ struct synaptics_data *priv = psmouse->private;
+
+ if (!(SYN_CAP_ADV_GESTURE(priv->ext_cap_0c) ||
+ SYN_CAP_IMAGE_SENSOR(priv->ext_cap_0c)))
+ return 0;
+
+ if (psmouse_sliced_command(psmouse, SYN_QUE_MODEL))
+ return -1;
+ if (ps2_command(&psmouse->ps2dev, ¶m, PSMOUSE_CMD_SETRATE))
+ return -1;
+
+ /* Advanced gesture mode also sends multi finger data */
+ priv->capabilities |= BIT(1);
+
+ return 0;
+}
+
+/*****************************************************************************
+ * Synaptics pass-through PS/2 port support
+ ****************************************************************************/
+static int synaptics_pt_write(struct serio *serio, unsigned char c)
+{
+ struct psmouse *parent = serio_get_drvdata(serio->parent);
+ char rate_param = SYN_PS_CLIENT_CMD; /* indicates that we want pass-through port */
+
+ if (psmouse_sliced_command(parent, c))
+ return -1;
+ if (ps2_command(&parent->ps2dev, &rate_param, PSMOUSE_CMD_SETRATE))
+ return -1;
+ return 0;
+}
+
+static int synaptics_pt_start(struct serio *serio)
+{
+ struct psmouse *parent = serio_get_drvdata(serio->parent);
+ struct synaptics_data *priv = parent->private;
+
+ serio_pause_rx(parent->ps2dev.serio);
+ priv->pt_port = serio;
+ serio_continue_rx(parent->ps2dev.serio);
+
+ return 0;
+}
+
+static void synaptics_pt_stop(struct serio *serio)
+{
+ struct psmouse *parent = serio_get_drvdata(serio->parent);
+ struct synaptics_data *priv = parent->private;
+
+ serio_pause_rx(parent->ps2dev.serio);
+ priv->pt_port = NULL;
+ serio_continue_rx(parent->ps2dev.serio);
+}
+
+static int synaptics_is_pt_packet(unsigned char *buf)
+{
+ return (buf[0] & 0xFC) == 0x84 && (buf[3] & 0xCC) == 0xC4;
+}
+
+static void synaptics_pass_pt_packet(struct serio *ptport, unsigned char *packet)
+{
+ struct psmouse *child = serio_get_drvdata(ptport);
+
+ if (child && child->state == PSMOUSE_ACTIVATED) {
+ serio_interrupt(ptport, packet[1], 0);
+ serio_interrupt(ptport, packet[4], 0);
+ serio_interrupt(ptport, packet[5], 0);
+ if (child->pktsize == 4)
+ serio_interrupt(ptport, packet[2], 0);
+ } else
+ serio_interrupt(ptport, packet[1], 0);
+}
+
+static void synaptics_pt_activate(struct psmouse *psmouse)
+{
+ struct synaptics_data *priv = psmouse->private;
+ struct psmouse *child = serio_get_drvdata(priv->pt_port);
+
+ /* adjust the touchpad to child's choice of protocol */
+ if (child) {
+ if (child->pktsize == 4)
+ priv->mode |= SYN_BIT_FOUR_BYTE_CLIENT;
+ else
+ priv->mode &= ~SYN_BIT_FOUR_BYTE_CLIENT;
+
+ if (synaptics_mode_cmd(psmouse, priv->mode))
+ psmouse_warn(psmouse,
+ "failed to switch guest protocol\n");
+ }
+}
+
+static void synaptics_pt_create(struct psmouse *psmouse)
+{
+ struct serio *serio;
+
+ serio = kzalloc(sizeof(struct serio), GFP_KERNEL);
+ if (!serio) {
+ psmouse_err(psmouse,
+ "not enough memory for pass-through port\n");
+ return;
+ }
+
+ serio->id.type = SERIO_PS_PSTHRU;
+ strlcpy(serio->name, "Synaptics pass-through", sizeof(serio->name));
+ strlcpy(serio->phys, "synaptics-pt/serio0", sizeof(serio->name));
+ serio->write = synaptics_pt_write;
+ serio->start = synaptics_pt_start;
+ serio->stop = synaptics_pt_stop;
+ serio->parent = psmouse->ps2dev.serio;
+
+ psmouse->pt_activate = synaptics_pt_activate;
+
+ psmouse_info(psmouse, "serio: %s port at %s\n",
+ serio->name, psmouse->phys);
+ serio_register_port(serio);
+}
+
+/*****************************************************************************
+ * Functions to interpret the absolute mode packets
+ ****************************************************************************/
+
+static void synaptics_mt_state_set(struct synaptics_mt_state *state, int count,
+ int sgm, int agm)
+{
+ state->count = count;
+ state->sgm = sgm;
+ state->agm = agm;
+}
+
+static void synaptics_parse_agm(const unsigned char buf[],
+ struct synaptics_data *priv,
+ struct synaptics_hw_state *hw)
+{
+ struct synaptics_hw_state *agm = &priv->agm;
+ int agm_packet_type;
+
+ agm_packet_type = (buf[5] & 0x30) >> 4;
+ switch (agm_packet_type) {
+ case 1:
+ /* Gesture packet: (x, y, z) half resolution */
+ agm->w = hw->w;
+ agm->x = (((buf[4] & 0x0f) << 8) | buf[1]) << 1;
+ agm->y = (((buf[4] & 0xf0) << 4) | buf[2]) << 1;
+ agm->z = ((buf[3] & 0x30) | (buf[5] & 0x0f)) << 1;
+ break;
+
+ case 2:
+ /* AGM-CONTACT packet: (count, sgm, agm) */
+ synaptics_mt_state_set(&agm->mt_state, buf[1], buf[2], buf[4]);
+ break;
+
+ default:
+ break;
+ }
+
+ /* Record that at least one AGM has been received since last SGM */
+ priv->agm_pending = true;
+}
+
+static int synaptics_parse_hw_state(const unsigned char buf[],
+ struct synaptics_data *priv,
+ struct synaptics_hw_state *hw)
+{
+ memset(hw, 0, sizeof(struct synaptics_hw_state));
+
+ if (SYN_MODEL_NEWABS(priv->model_id)) {
+ hw->w = (((buf[0] & 0x30) >> 2) |
+ ((buf[0] & 0x04) >> 1) |
+ ((buf[3] & 0x04) >> 2));
+
+ hw->left = (buf[0] & 0x01) ? 1 : 0;
+ hw->right = (buf[0] & 0x02) ? 1 : 0;
+
+ if (SYN_CAP_CLICKPAD(priv->ext_cap_0c)) {
+ /*
+ * Clickpad's button is transmitted as middle button,
+ * however, since it is primary button, we will report
+ * it as BTN_LEFT.
+ */
+ hw->left = ((buf[0] ^ buf[3]) & 0x01) ? 1 : 0;
+
+ } else if (SYN_CAP_MIDDLE_BUTTON(priv->capabilities)) {
+ hw->middle = ((buf[0] ^ buf[3]) & 0x01) ? 1 : 0;
+ if (hw->w == 2)
+ hw->scroll = (signed char)(buf[1]);
+ }
+
+ if (SYN_CAP_FOUR_BUTTON(priv->capabilities)) {
+ hw->up = ((buf[0] ^ buf[3]) & 0x01) ? 1 : 0;
+ hw->down = ((buf[0] ^ buf[3]) & 0x02) ? 1 : 0;
+ }
+
+ if ((SYN_CAP_ADV_GESTURE(priv->ext_cap_0c) ||
+ SYN_CAP_IMAGE_SENSOR(priv->ext_cap_0c)) &&
+ hw->w == 2) {
+ synaptics_parse_agm(buf, priv, hw);
+ return 1;
+ }
+
+ hw->x = (((buf[3] & 0x10) << 8) |
+ ((buf[1] & 0x0f) << 8) |
+ buf[4]);
+ hw->y = (((buf[3] & 0x20) << 7) |
+ ((buf[1] & 0xf0) << 4) |
+ buf[5]);
+ hw->z = buf[2];
+
+ if (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) &&
+ ((buf[0] ^ buf[3]) & 0x02)) {
+ switch (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) & ~0x01) {
+ default:
+ /*
+ * if nExtBtn is greater than 8 it should be
+ * considered invalid and treated as 0
+ */
+ break;
+ case 8:
+ hw->ext_buttons |= ((buf[5] & 0x08)) ? 0x80 : 0;
+ hw->ext_buttons |= ((buf[4] & 0x08)) ? 0x40 : 0;
+ case 6:
+ hw->ext_buttons |= ((buf[5] & 0x04)) ? 0x20 : 0;
+ hw->ext_buttons |= ((buf[4] & 0x04)) ? 0x10 : 0;
+ case 4:
+ hw->ext_buttons |= ((buf[5] & 0x02)) ? 0x08 : 0;
+ hw->ext_buttons |= ((buf[4] & 0x02)) ? 0x04 : 0;
+ case 2:
+ hw->ext_buttons |= ((buf[5] & 0x01)) ? 0x02 : 0;
+ hw->ext_buttons |= ((buf[4] & 0x01)) ? 0x01 : 0;
+ }
+ }
+ } else {
+ hw->x = (((buf[1] & 0x1f) << 8) | buf[2]);
+ hw->y = (((buf[4] & 0x1f) << 8) | buf[5]);
+
+ hw->z = (((buf[0] & 0x30) << 2) | (buf[3] & 0x3F));
+ hw->w = (((buf[1] & 0x80) >> 4) | ((buf[0] & 0x04) >> 1));
+
+ hw->left = (buf[0] & 0x01) ? 1 : 0;
+ hw->right = (buf[0] & 0x02) ? 1 : 0;
+ }
+
+ return 0;
+}
+
+static void synaptics_report_semi_mt_slot(struct input_dev *dev, int slot,
+ bool active, int x, int y)
+{
+ input_mt_slot(dev, slot);
+ input_mt_report_slot_state(dev, MT_TOOL_FINGER, active);
+ if (active) {
+ input_report_abs(dev, ABS_MT_POSITION_X, x);
+ input_report_abs(dev, ABS_MT_POSITION_Y, synaptics_invert_y(y));
+ }
+}
+
+static void synaptics_report_semi_mt_data(struct input_dev *dev,
+ const struct synaptics_hw_state *a,
+ const struct synaptics_hw_state *b,
+ int num_fingers)
+{
+ if (num_fingers >= 2) {
+ synaptics_report_semi_mt_slot(dev, 0, true, min(a->x, b->x),
+ min(a->y, b->y));
+ synaptics_report_semi_mt_slot(dev, 1, true, max(a->x, b->x),
+ max(a->y, b->y));
+ } else if (num_fingers == 1) {
+ synaptics_report_semi_mt_slot(dev, 0, true, a->x, a->y);
+ synaptics_report_semi_mt_slot(dev, 1, false, 0, 0);
+ } else {
+ synaptics_report_semi_mt_slot(dev, 0, false, 0, 0);
+ synaptics_report_semi_mt_slot(dev, 1, false, 0, 0);
+ }
+}
+
+static void synaptics_report_buttons(struct psmouse *psmouse,
+ const struct synaptics_hw_state *hw)
+{
+ struct input_dev *dev = psmouse->dev;
+ struct synaptics_data *priv = psmouse->private;
+ int i;
+
+ input_report_key(dev, BTN_LEFT, hw->left);
+ input_report_key(dev, BTN_RIGHT, hw->right);
+
+ if (SYN_CAP_MIDDLE_BUTTON(priv->capabilities))
+ input_report_key(dev, BTN_MIDDLE, hw->middle);
+
+ if (SYN_CAP_FOUR_BUTTON(priv->capabilities)) {
+ input_report_key(dev, BTN_FORWARD, hw->up);
+ input_report_key(dev, BTN_BACK, hw->down);
+ }
+
+ for (i = 0; i < SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap); i++)
+ input_report_key(dev, BTN_0 + i, hw->ext_buttons & (1 << i));
+}
+
+static void synaptics_report_slot(struct input_dev *dev, int slot,
+ const struct synaptics_hw_state *hw)
+{
+ input_mt_slot(dev, slot);
+ input_mt_report_slot_state(dev, MT_TOOL_FINGER, (hw != NULL));
+ if (!hw)
+ return;
+
+ input_report_abs(dev, ABS_MT_POSITION_X, hw->x);
+ input_report_abs(dev, ABS_MT_POSITION_Y, synaptics_invert_y(hw->y));
+ input_report_abs(dev, ABS_MT_PRESSURE, hw->z);
+}
+
+static void synaptics_report_mt_data(struct psmouse *psmouse,
+ struct synaptics_mt_state *mt_state,
+ const struct synaptics_hw_state *sgm)
+{
+ struct input_dev *dev = psmouse->dev;
+ struct synaptics_data *priv = psmouse->private;
+ struct synaptics_hw_state *agm = &priv->agm;
+ struct synaptics_mt_state *old = &priv->mt_state;
+
+ switch (mt_state->count) {
+ case 0:
+ synaptics_report_slot(dev, 0, NULL);
+ synaptics_report_slot(dev, 1, NULL);
+ break;
+ case 1:
+ if (mt_state->sgm == -1) {
+ synaptics_report_slot(dev, 0, NULL);
+ synaptics_report_slot(dev, 1, NULL);
+ } else if (mt_state->sgm == 0) {
+ synaptics_report_slot(dev, 0, sgm);
+ synaptics_report_slot(dev, 1, NULL);
+ } else {
+ synaptics_report_slot(dev, 0, NULL);
+ synaptics_report_slot(dev, 1, sgm);
+ }
+ break;
+ default:
+ /*
+ * If the finger slot contained in SGM is valid, and either
+ * hasn't changed, or is new, then report SGM in MTB slot 0.
+ * Otherwise, empty MTB slot 0.
+ */
+ if (mt_state->sgm != -1 &&
+ (mt_state->sgm == old->sgm || old->sgm == -1))
+ synaptics_report_slot(dev, 0, sgm);
+ else
+ synaptics_report_slot(dev, 0, NULL);
+
+ /*
+ * If the finger slot contained in AGM is valid, and either
+ * hasn't changed, or is new, then report AGM in MTB slot 1.
+ * Otherwise, empty MTB slot 1.
+ */
+ if (mt_state->agm != -1 &&
+ (mt_state->agm == old->agm || old->agm == -1))
+ synaptics_report_slot(dev, 1, agm);
+ else
+ synaptics_report_slot(dev, 1, NULL);
+ break;
+ }
+
+ /* Don't use active slot count to generate BTN_TOOL events. */
+ input_mt_report_pointer_emulation(dev, false);
+
+ /* Send the number of fingers reported by touchpad itself. */
+ input_mt_report_finger_count(dev, mt_state->count);
+
+ synaptics_report_buttons(psmouse, sgm);
+
+ input_sync(dev);
+}
+
+/* Handle case where mt_state->count = 0 */
+static void synaptics_image_sensor_0f(struct synaptics_data *priv,
+ struct synaptics_mt_state *mt_state)
+{
+ synaptics_mt_state_set(mt_state, 0, -1, -1);
+ priv->mt_state_lost = false;
+}
+
+/* Handle case where mt_state->count = 1 */
+static void synaptics_image_sensor_1f(struct synaptics_data *priv,
+ struct synaptics_mt_state *mt_state)
+{
+ struct synaptics_hw_state *agm = &priv->agm;
+ struct synaptics_mt_state *old = &priv->mt_state;
+
+ /*
+ * If the last AGM was (0,0,0), and there is only one finger left,
+ * then we absolutely know that SGM contains slot 0, and all other
+ * fingers have been removed.
+ */
+ if (priv->agm_pending && agm->z == 0) {
+ synaptics_mt_state_set(mt_state, 1, 0, -1);
+ priv->mt_state_lost = false;
+ return;
+ }
+
+ switch (old->count) {
+ case 0:
+ synaptics_mt_state_set(mt_state, 1, 0, -1);
+ break;
+ case 1:
+ /*
+ * If mt_state_lost, then the previous transition was 3->1,
+ * and SGM now contains either slot 0 or 1, but we don't know
+ * which. So, we just assume that the SGM now contains slot 1.
+ *
+ * If pending AGM and either:
+ * (a) the previous SGM slot contains slot 0, or
+ * (b) there was no SGM slot
+ * then, the SGM now contains slot 1
+ *
+ * Case (a) happens with very rapid "drum roll" gestures, where
+ * slot 0 finger is lifted and a new slot 1 finger touches
+ * within one reporting interval.
+ *
+ * Case (b) happens if initially two or more fingers tap
+ * briefly, and all but one lift before the end of the first
+ * reporting interval.
+ *
+ * (In both these cases, slot 0 will becomes empty, so SGM
+ * contains slot 1 with the new finger)
+ *
+ * Else, if there was no previous SGM, it now contains slot 0.
+ *
+ * Otherwise, SGM still contains the same slot.
+ */
+ if (priv->mt_state_lost ||
+ (priv->agm_pending && old->sgm <= 0))
+ synaptics_mt_state_set(mt_state, 1, 1, -1);
+ else if (old->sgm == -1)
+ synaptics_mt_state_set(mt_state, 1, 0, -1);
+ break;
+ case 2:
+ /*
+ * If mt_state_lost, we don't know which finger SGM contains.
+ *
+ * So, report 1 finger, but with both slots empty.
+ * We will use slot 1 on subsequent 1->1
+ */
+ if (priv->mt_state_lost) {
+ synaptics_mt_state_set(mt_state, 1, -1, -1);
+ break;
+ }
+ /*
+ * Since the last AGM was NOT (0,0,0), it was the finger in
+ * slot 0 that has been removed.
+ * So, SGM now contains previous AGM's slot, and AGM is now
+ * empty.
+ */
+ synaptics_mt_state_set(mt_state, 1, old->agm, -1);
+ break;
+ case 3:
+ /*
+ * Since last AGM was not (0,0,0), we don't know which finger
+ * is left.
+ *
+ * So, report 1 finger, but with both slots empty.
+ * We will use slot 1 on subsequent 1->1
+ */
+ synaptics_mt_state_set(mt_state, 1, -1, -1);
+ priv->mt_state_lost = true;
+ break;
+ case 4:
+ case 5:
+ /* mt_state was updated by AGM-CONTACT packet */
+ break;
+ }
+}
+
+/* Handle case where mt_state->count = 2 */
+static void synaptics_image_sensor_2f(struct synaptics_data *priv,
+ struct synaptics_mt_state *mt_state)
+{
+ struct synaptics_mt_state *old = &priv->mt_state;
+
+ switch (old->count) {
+ case 0:
+ synaptics_mt_state_set(mt_state, 2, 0, 1);
+ break;
+ case 1:
+ /*
+ * If previous SGM contained slot 1 or higher, SGM now contains
+ * slot 0 (the newly touching finger) and AGM contains SGM's
+ * previous slot.
+ *
+ * Otherwise, SGM still contains slot 0 and AGM now contains
+ * slot 1.
+ */
+ if (old->sgm >= 1)
+ synaptics_mt_state_set(mt_state, 2, 0, old->sgm);
+ else
+ synaptics_mt_state_set(mt_state, 2, 0, 1);
+ break;
+ case 2:
+ /*
+ * If mt_state_lost, SGM now contains either finger 1 or 2, but
+ * we don't know which.
+ * So, we just assume that the SGM contains slot 0 and AGM 1.
+ */
+ if (priv->mt_state_lost)
+ synaptics_mt_state_set(mt_state, 2, 0, 1);
+ /*
+ * Otherwise, use the same mt_state, since it either hasn't
+ * changed, or was updated by a recently received AGM-CONTACT
+ * packet.
+ */
+ break;
+ case 3:
+ /*
+ * 3->2 transitions have two unsolvable problems:
+ * 1) no indication is given which finger was removed
+ * 2) no way to tell if agm packet was for finger 3
+ * before 3->2, or finger 2 after 3->2.
+ *
+ * So, report 2 fingers, but empty all slots.
+ * We will guess slots [0,1] on subsequent 2->2.
+ */
+ synaptics_mt_state_set(mt_state, 2, -1, -1);
+ priv->mt_state_lost = true;
+ break;
+ case 4:
+ case 5:
+ /* mt_state was updated by AGM-CONTACT packet */
+ break;
+ }
+}
+
+/* Handle case where mt_state->count = 3 */
+static void synaptics_image_sensor_3f(struct synaptics_data *priv,
+ struct synaptics_mt_state *mt_state)
+{
+ struct synaptics_mt_state *old = &priv->mt_state;
+
+ switch (old->count) {
+ case 0:
+ synaptics_mt_state_set(mt_state, 3, 0, 2);
+ break;
+ case 1:
+ /*
+ * If previous SGM contained slot 2 or higher, SGM now contains
+ * slot 0 (one of the newly touching fingers) and AGM contains
+ * SGM's previous slot.
+ *
+ * Otherwise, SGM now contains slot 0 and AGM contains slot 2.
+ */
+ if (old->sgm >= 2)
+ synaptics_mt_state_set(mt_state, 3, 0, old->sgm);
+ else
+ synaptics_mt_state_set(mt_state, 3, 0, 2);
+ break;
+ case 2:
+ /*
+ * If the AGM previously contained slot 3 or higher, then the
+ * newly touching finger is in the lowest available slot.
+ *
+ * If SGM was previously 1 or higher, then the new SGM is
+ * now slot 0 (with a new finger), otherwise, the new finger
+ * is now in a hidden slot between 0 and AGM's slot.
+ *
+ * In all such cases, the SGM now contains slot 0, and the AGM
+ * continues to contain the same slot as before.
+ */
+ if (old->agm >= 3) {
+ synaptics_mt_state_set(mt_state, 3, 0, old->agm);
+ break;
+ }
+
+ /*
+ * After some 3->1 and all 3->2 transitions, we lose track
+ * of which slot is reported by SGM and AGM.
+ *
+ * For 2->3 in this state, report 3 fingers, but empty all
+ * slots, and we will guess (0,2) on a subsequent 0->3.
+ *
+ * To userspace, the resulting transition will look like:
+ * 2:[0,1] -> 3:[-1,-1] -> 3:[0,2]
+ */
+ if (priv->mt_state_lost) {
+ synaptics_mt_state_set(mt_state, 3, -1, -1);
+ break;
+ }
+
+ /*
+ * If the (SGM,AGM) really previously contained slots (0, 1),
+ * then we cannot know what slot was just reported by the AGM,
+ * because the 2->3 transition can occur either before or after
+ * the AGM packet. Thus, this most recent AGM could contain
+ * either the same old slot 1 or the new slot 2.
+ * Subsequent AGMs will be reporting slot 2.
+ *
+ * To userspace, the resulting transition will look like:
+ * 2:[0,1] -> 3:[0,-1] -> 3:[0,2]
+ */
+ synaptics_mt_state_set(mt_state, 3, 0, -1);
+ break;
+ case 3:
+ /*
+ * If, for whatever reason, the previous agm was invalid,
+ * Assume SGM now contains slot 0, AGM now contains slot 2.
+ */
+ if (old->agm <= 2)
+ synaptics_mt_state_set(mt_state, 3, 0, 2);
+ /*
+ * mt_state either hasn't changed, or was updated by a recently
+ * received AGM-CONTACT packet.
+ */
+ break;
+
+ case 4:
+ case 5:
+ /* mt_state was updated by AGM-CONTACT packet */
+ break;
+ }
+}
+
+/* Handle case where mt_state->count = 4, or = 5 */
+static void synaptics_image_sensor_45f(struct synaptics_data *priv,
+ struct synaptics_mt_state *mt_state)
+{
+ /* mt_state was updated correctly by AGM-CONTACT packet */
+ priv->mt_state_lost = false;
+}
+
+static void synaptics_image_sensor_process(struct psmouse *psmouse,
+ struct synaptics_hw_state *sgm)
+{
+ struct synaptics_data *priv = psmouse->private;
+ struct synaptics_hw_state *agm = &priv->agm;
+ struct synaptics_mt_state mt_state;
+
+ /* Initialize using current mt_state (as updated by last agm) */
+ mt_state = agm->mt_state;
+
+ /*
+ * Update mt_state using the new finger count and current mt_state.
+ */
+ if (sgm->z == 0)
+ synaptics_image_sensor_0f(priv, &mt_state);
+ else if (sgm->w >= 4)
+ synaptics_image_sensor_1f(priv, &mt_state);
+ else if (sgm->w == 0)
+ synaptics_image_sensor_2f(priv, &mt_state);
+ else if (sgm->w == 1 && mt_state.count <= 3)
+ synaptics_image_sensor_3f(priv, &mt_state);
+ else
+ synaptics_image_sensor_45f(priv, &mt_state);
+
+ /* Send resulting input events to user space */
+ synaptics_report_mt_data(psmouse, &mt_state, sgm);
+
+ /* Store updated mt_state */
+ priv->mt_state = agm->mt_state = mt_state;
+ priv->agm_pending = false;
+}
+
+/*
+ * called for each full received packet from the touchpad
+ */
+static void synaptics_process_packet(struct psmouse *psmouse)
+{
+ struct input_dev *dev = psmouse->dev;
+ struct synaptics_data *priv = psmouse->private;
+ struct synaptics_hw_state hw;
+ int num_fingers;
+ int finger_width;
+
+ if (synaptics_parse_hw_state(psmouse->packet, priv, &hw))
+ return;
+
+ if (SYN_CAP_IMAGE_SENSOR(priv->ext_cap_0c)) {
+ synaptics_image_sensor_process(psmouse, &hw);
+ return;
+ }
+
+ if (hw.scroll) {
+ priv->scroll += hw.scroll;
+
+ while (priv->scroll >= 4) {
+ input_report_key(dev, BTN_BACK, !hw.down);
+ input_sync(dev);
+ input_report_key(dev, BTN_BACK, hw.down);
+ input_sync(dev);
+ priv->scroll -= 4;
+ }
+ while (priv->scroll <= -4) {
+ input_report_key(dev, BTN_FORWARD, !hw.up);
+ input_sync(dev);
+ input_report_key(dev, BTN_FORWARD, hw.up);
+ input_sync(dev);
+ priv->scroll += 4;
+ }
+ return;
+ }
+
+ if (hw.z > 0 && hw.x > 1) {
+ num_fingers = 1;
+ finger_width = 5;
+ if (SYN_CAP_EXTENDED(priv->capabilities)) {
+ switch (hw.w) {
+ case 0 ... 1:
+ if (SYN_CAP_MULTIFINGER(priv->capabilities))
+ num_fingers = hw.w + 2;
+ break;
+ case 2:
+ if (SYN_MODEL_PEN(priv->model_id))
+ ; /* Nothing, treat a pen as a single finger */
+ break;
+ case 4 ... 15:
+ if (SYN_CAP_PALMDETECT(priv->capabilities))
+ finger_width = hw.w;
+ break;
+ }
+ }
+ } else {
+ num_fingers = 0;
+ finger_width = 0;
+ }
+
+ if (SYN_CAP_ADV_GESTURE(priv->ext_cap_0c))
+ synaptics_report_semi_mt_data(dev, &hw, &priv->agm,
+ num_fingers);
+
+ /* Post events
+ * BTN_TOUCH has to be first as mousedev relies on it when doing
+ * absolute -> relative conversion
+ */
+ if (hw.z > 30) input_report_key(dev, BTN_TOUCH, 1);
+ if (hw.z < 25) input_report_key(dev, BTN_TOUCH, 0);
+
+ if (num_fingers > 0) {
+ input_report_abs(dev, ABS_X, hw.x);
+ input_report_abs(dev, ABS_Y, synaptics_invert_y(hw.y));
+ }
+ input_report_abs(dev, ABS_PRESSURE, hw.z);
+
+ if (SYN_CAP_PALMDETECT(priv->capabilities))
+ input_report_abs(dev, ABS_TOOL_WIDTH, finger_width);
+
+ input_report_key(dev, BTN_TOOL_FINGER, num_fingers == 1);
+ if (SYN_CAP_MULTIFINGER(priv->capabilities)) {
+ input_report_key(dev, BTN_TOOL_DOUBLETAP, num_fingers == 2);
+ input_report_key(dev, BTN_TOOL_TRIPLETAP, num_fingers == 3);
+ }
+
+ synaptics_report_buttons(psmouse, &hw);
+
+ input_sync(dev);
+}
+
+static int synaptics_validate_byte(struct psmouse *psmouse,
+ int idx, unsigned char pkt_type)
+{
+ static const unsigned char newabs_mask[] = { 0xC8, 0x00, 0x00, 0xC8, 0x00 };
+ static const unsigned char newabs_rel_mask[] = { 0xC0, 0x00, 0x00, 0xC0, 0x00 };
+ static const unsigned char newabs_rslt[] = { 0x80, 0x00, 0x00, 0xC0, 0x00 };
+ static const unsigned char oldabs_mask[] = { 0xC0, 0x60, 0x00, 0xC0, 0x60 };
+ static const unsigned char oldabs_rslt[] = { 0xC0, 0x00, 0x00, 0x80, 0x00 };
+ const char *packet = psmouse->packet;
+
+ if (idx < 0 || idx > 4)
+ return 0;
+
+ switch (pkt_type) {
+
+ case SYN_NEWABS:
+ case SYN_NEWABS_RELAXED:
+ return (packet[idx] & newabs_rel_mask[idx]) == newabs_rslt[idx];
+
+ case SYN_NEWABS_STRICT:
+ return (packet[idx] & newabs_mask[idx]) == newabs_rslt[idx];
+
+ case SYN_OLDABS:
+ return (packet[idx] & oldabs_mask[idx]) == oldabs_rslt[idx];
+
+ default:
+ psmouse_err(psmouse, "unknown packet type %d\n", pkt_type);
+ return 0;
+ }
+}
+
+static unsigned char synaptics_detect_pkt_type(struct psmouse *psmouse)
+{
+ int i;
+
+ for (i = 0; i < 5; i++)
+ if (!synaptics_validate_byte(psmouse, i, SYN_NEWABS_STRICT)) {
+ psmouse_info(psmouse, "using relaxed packet validation\n");
+ return SYN_NEWABS_RELAXED;
+ }
+
+ return SYN_NEWABS_STRICT;
+}
+
+static psmouse_ret_t synaptics_process_byte(struct psmouse *psmouse)
+{
+ struct synaptics_data *priv = psmouse->private;
+
+ if (psmouse->pktcnt >= 6) { /* Full packet received */
+ if (unlikely(priv->pkt_type == SYN_NEWABS))
+ priv->pkt_type = synaptics_detect_pkt_type(psmouse);
+
+ if (SYN_CAP_PASS_THROUGH(priv->capabilities) &&
+ synaptics_is_pt_packet(psmouse->packet)) {
+ if (priv->pt_port)
+ synaptics_pass_pt_packet(priv->pt_port, psmouse->packet);
+ } else
+ synaptics_process_packet(psmouse);
+
+ return PSMOUSE_FULL_PACKET;
+ }
+
+ return synaptics_validate_byte(psmouse, psmouse->pktcnt - 1, priv->pkt_type) ?
+ PSMOUSE_GOOD_DATA : PSMOUSE_BAD_DATA;
+}
+
+/*****************************************************************************
+ * Driver initialization/cleanup functions
+ ****************************************************************************/
+static void set_abs_position_params(struct input_dev *dev,
+ struct synaptics_data *priv, int x_code,
+ int y_code)
+{
+ int x_min = priv->x_min ?: XMIN_NOMINAL;
+ int x_max = priv->x_max ?: XMAX_NOMINAL;
+ int y_min = priv->y_min ?: YMIN_NOMINAL;
+ int y_max = priv->y_max ?: YMAX_NOMINAL;
+ int fuzz = SYN_CAP_REDUCED_FILTERING(priv->ext_cap_0c) ?
+ SYN_REDUCED_FILTER_FUZZ : 0;
+
+ input_set_abs_params(dev, x_code, x_min, x_max, fuzz, 0);
+ input_set_abs_params(dev, y_code, y_min, y_max, fuzz, 0);
+ input_abs_set_res(dev, x_code, priv->x_res);
+ input_abs_set_res(dev, y_code, priv->y_res);
+}
+
+static void set_input_params(struct input_dev *dev, struct synaptics_data *priv)
+{
+ int i;
+
+ __set_bit(INPUT_PROP_POINTER, dev->propbit);
+
+ __set_bit(EV_ABS, dev->evbit);
+ set_abs_position_params(dev, priv, ABS_X, ABS_Y);
+ input_set_abs_params(dev, ABS_PRESSURE, 0, 255, 0, 0);
+
+ if (SYN_CAP_IMAGE_SENSOR(priv->ext_cap_0c)) {
+ input_mt_init_slots(dev, 2);
+ set_abs_position_params(dev, priv, ABS_MT_POSITION_X,
+ ABS_MT_POSITION_Y);
+ /* Image sensors can report per-contact pressure */
+ input_set_abs_params(dev, ABS_MT_PRESSURE, 0, 255, 0, 0);
+
+ /* Image sensors can signal 4 and 5 finger clicks */
+ __set_bit(BTN_TOOL_QUADTAP, dev->keybit);
+ __set_bit(BTN_TOOL_QUINTTAP, dev->keybit);
+ } else if (SYN_CAP_ADV_GESTURE(priv->ext_cap_0c)) {
+ /* Non-image sensors with AGM use semi-mt */
+ __set_bit(INPUT_PROP_SEMI_MT, dev->propbit);
+ input_mt_init_slots(dev, 2);
+ set_abs_position_params(dev, priv, ABS_MT_POSITION_X,
+ ABS_MT_POSITION_Y);
+ }
+
+ if (SYN_CAP_PALMDETECT(priv->capabilities))
+ input_set_abs_params(dev, ABS_TOOL_WIDTH, 0, 15, 0, 0);
+
+ __set_bit(EV_KEY, dev->evbit);
+ __set_bit(BTN_TOUCH, dev->keybit);
+ __set_bit(BTN_TOOL_FINGER, dev->keybit);
+ __set_bit(BTN_LEFT, dev->keybit);
+ __set_bit(BTN_RIGHT, dev->keybit);
+
+ if (SYN_CAP_MULTIFINGER(priv->capabilities)) {
+ __set_bit(BTN_TOOL_DOUBLETAP, dev->keybit);
+ __set_bit(BTN_TOOL_TRIPLETAP, dev->keybit);
+ }
+
+ if (SYN_CAP_MIDDLE_BUTTON(priv->capabilities))
+ __set_bit(BTN_MIDDLE, dev->keybit);
+
+ if (SYN_CAP_FOUR_BUTTON(priv->capabilities) ||
+ SYN_CAP_MIDDLE_BUTTON(priv->capabilities)) {
+ __set_bit(BTN_FORWARD, dev->keybit);
+ __set_bit(BTN_BACK, dev->keybit);
+ }
+
+ for (i = 0; i < SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap); i++)
+ __set_bit(BTN_0 + i, dev->keybit);
+
+ __clear_bit(EV_REL, dev->evbit);
+ __clear_bit(REL_X, dev->relbit);
+ __clear_bit(REL_Y, dev->relbit);
+
+ if (SYN_CAP_CLICKPAD(priv->ext_cap_0c)) {
+ __set_bit(INPUT_PROP_BUTTONPAD, dev->propbit);
+ /* Clickpads report only left button */
+ __clear_bit(BTN_RIGHT, dev->keybit);
+ __clear_bit(BTN_MIDDLE, dev->keybit);
+ }
+}
+
+static void synaptics_disconnect(struct psmouse *psmouse)
+{
+ synaptics_reset(psmouse);
+ kfree(psmouse->private);
+ psmouse->private = NULL;
+}
+
+static int synaptics_reconnect(struct psmouse *psmouse)
+{
+ struct synaptics_data *priv = psmouse->private;
+ struct synaptics_data old_priv = *priv;
+ int retry = 0;
+ int error;
+
+ do {
+ psmouse_reset(psmouse);
+ if (retry) {
+ /*
+ * On some boxes, right after resuming, the touchpad
+ * needs some time to finish initializing (I assume
+ * it needs time to calibrate) and start responding
+ * to Synaptics-specific queries, so let's wait a
+ * bit.
+ */
+ ssleep(1);
+ }
+ error = synaptics_detect(psmouse, 0);
+ } while (error && ++retry < 3);
+
+ if (error)
+ return -1;
+
+ if (retry > 1)
+ psmouse_dbg(psmouse, "reconnected after %d tries\n", retry);
+
+ if (synaptics_query_hardware(psmouse)) {
+ psmouse_err(psmouse, "Unable to query device.\n");
+ return -1;
+ }
+
+ if (synaptics_set_absolute_mode(psmouse)) {
+ psmouse_err(psmouse, "Unable to initialize device.\n");
+ return -1;
+ }
+
+ if (synaptics_set_advanced_gesture_mode(psmouse)) {
+ psmouse_err(psmouse,
+ "Advanced gesture mode reconnect failed.\n");
+ return -1;
+ }
+
+ if (old_priv.identity != priv->identity ||
+ old_priv.model_id != priv->model_id ||
+ old_priv.capabilities != priv->capabilities ||
+ old_priv.ext_cap != priv->ext_cap) {
+ psmouse_err(psmouse,
+ "hardware appears to be different: id(%ld-%ld), model(%ld-%ld), caps(%lx-%lx), ext(%lx-%lx).\n",
+ old_priv.identity, priv->identity,
+ old_priv.model_id, priv->model_id,
+ old_priv.capabilities, priv->capabilities,
+ old_priv.ext_cap, priv->ext_cap);
+ return -1;
+ }
+
+ return 0;
+}
+
+static bool impaired_toshiba_kbc;
+
+static const struct dmi_system_id __initconst toshiba_dmi_table[] = {
+#if defined(CONFIG_DMI) && defined(CONFIG_X86)
+ {
+ /* Toshiba Satellite */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Satellite"),
+ },
+ },
+ {
+ /* Toshiba Dynabook */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "dynabook"),
+ },
+ },
+ {
+ /* Toshiba Portege M300 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "PORTEGE M300"),
+ },
+
+ },
+ {
+ /* Toshiba Portege M300 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Portable PC"),
+ DMI_MATCH(DMI_PRODUCT_VERSION, "Version 1.0"),
+ },
+
+ },
+#endif
+ { }
+};
+
+static bool broken_olpc_ec;
+
+static const struct dmi_system_id __initconst olpc_dmi_table[] = {
+#if defined(CONFIG_DMI) && defined(CONFIG_OLPC)
+ {
+ /* OLPC XO-1 or XO-1.5 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "OLPC"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "XO"),
+ },
+ },
+#endif
+ { }
+};
+
+void __init synaptics_module_init(void)
+{
+ impaired_toshiba_kbc = dmi_check_system(toshiba_dmi_table);
+ broken_olpc_ec = dmi_check_system(olpc_dmi_table);
+}
+
+int synaptics_init(struct psmouse *psmouse)
+{
+ struct synaptics_data *priv;
+
+ /*
+ * The OLPC XO has issues with Synaptics' absolute mode; similarly to
+ * the HGPK, it quickly degrades and the hardware becomes jumpy and
+ * overly sensitive. Not only that, but the constant packet spew
+ * (even at a lowered 40pps rate) overloads the EC such that key
+ * presses on the keyboard are missed. Given all of that, don't
+ * even attempt to use Synaptics mode. Relative mode seems to work
+ * just fine.
+ */
+ if (broken_olpc_ec) {
+ psmouse_info(psmouse,
+ "OLPC XO detected, not enabling Synaptics protocol.\n");
+ return -ENODEV;
+ }
+
+ psmouse->private = priv = kzalloc(sizeof(struct synaptics_data), GFP_KERNEL);
+ if (!priv)
+ return -ENOMEM;
+
+ psmouse_reset(psmouse);
+
+ if (synaptics_query_hardware(psmouse)) {
+ psmouse_err(psmouse, "Unable to query device.\n");
+ goto init_fail;
+ }
+
+ if (synaptics_set_absolute_mode(psmouse)) {
+ psmouse_err(psmouse, "Unable to initialize device.\n");
+ goto init_fail;
+ }
+
+ if (synaptics_set_advanced_gesture_mode(psmouse)) {
+ psmouse_err(psmouse, "Advanced gesture mode init failed.\n");
+ goto init_fail;
+ }
+
+ priv->pkt_type = SYN_MODEL_NEWABS(priv->model_id) ? SYN_NEWABS : SYN_OLDABS;
+
+ psmouse_info(psmouse,
+ "Touchpad model: %ld, fw: %ld.%ld, id: %#lx, caps: %#lx/%#lx/%#lx\n",
+ SYN_ID_MODEL(priv->identity),
+ SYN_ID_MAJOR(priv->identity), SYN_ID_MINOR(priv->identity),
+ priv->model_id,
+ priv->capabilities, priv->ext_cap, priv->ext_cap_0c);
+
+ set_input_params(psmouse->dev, priv);
+
+ /*
+ * Encode touchpad model so that it can be used to set
+ * input device->id.version and be visible to userspace.
+ * Because version is __u16 we have to drop something.
+ * Hardware info bits seem to be good candidates as they
+ * are documented to be for Synaptics corp. internal use.
+ */
+ psmouse->model = ((priv->model_id & 0x00ff0000) >> 8) |
+ (priv->model_id & 0x000000ff);
+
+ psmouse->protocol_handler = synaptics_process_byte;
+ psmouse->set_rate = synaptics_set_rate;
+ psmouse->disconnect = synaptics_disconnect;
+ psmouse->reconnect = synaptics_reconnect;
+ psmouse->cleanup = synaptics_reset;
+ psmouse->pktsize = 6;
+ /* Synaptics can usually stay in sync without extra help */
+ psmouse->resync_time = 0;
+
+ if (SYN_CAP_PASS_THROUGH(priv->capabilities))
+ synaptics_pt_create(psmouse);
+
+ /*
+ * Toshiba's KBC seems to have trouble handling data from
+ * Synaptics at full rate. Switch to a lower rate (roughly
+ * the same rate as a standard PS/2 mouse).
+ */
+ if (psmouse->rate >= 80 && impaired_toshiba_kbc) {
+ psmouse_info(psmouse,
+ "Toshiba %s detected, limiting rate to 40pps.\n",
+ dmi_get_system_info(DMI_PRODUCT_NAME));
+ psmouse->rate = 40;
+ }
+
+ return 0;
+
+ init_fail:
+ kfree(priv);
+ return -1;
+}
+
+bool synaptics_supported(void)
+{
+ return true;
+}
+
+#else /* CONFIG_MOUSE_PS2_SYNAPTICS */
+
+void __init synaptics_module_init(void)
+{
+}
+
+int synaptics_init(struct psmouse *psmouse)
+{
+ return -ENOSYS;
+}
+
+bool synaptics_supported(void)
+{
+ return false;
+}
+
+#endif /* CONFIG_MOUSE_PS2_SYNAPTICS */
diff --git a/drivers/input/mouse/synaptics.h b/drivers/input/mouse/synaptics.h
new file mode 100644
index 0000000..622aea8
--- /dev/null
+++ b/drivers/input/mouse/synaptics.h
@@ -0,0 +1,181 @@
+/*
+ * Synaptics TouchPad PS/2 mouse driver
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ */
+
+#ifndef _SYNAPTICS_H
+#define _SYNAPTICS_H
+
+/* synaptics queries */
+#define SYN_QUE_IDENTIFY 0x00
+#define SYN_QUE_MODES 0x01
+#define SYN_QUE_CAPABILITIES 0x02
+#define SYN_QUE_MODEL 0x03
+#define SYN_QUE_SERIAL_NUMBER_PREFIX 0x06
+#define SYN_QUE_SERIAL_NUMBER_SUFFIX 0x07
+#define SYN_QUE_RESOLUTION 0x08
+#define SYN_QUE_EXT_CAPAB 0x09
+#define SYN_QUE_EXT_CAPAB_0C 0x0c
+#define SYN_QUE_EXT_MAX_COORDS 0x0d
+#define SYN_QUE_EXT_MIN_COORDS 0x0f
+
+/* synatics modes */
+#define SYN_BIT_ABSOLUTE_MODE (1 << 7)
+#define SYN_BIT_HIGH_RATE (1 << 6)
+#define SYN_BIT_SLEEP_MODE (1 << 3)
+#define SYN_BIT_DISABLE_GESTURE (1 << 2)
+#define SYN_BIT_FOUR_BYTE_CLIENT (1 << 1)
+#define SYN_BIT_W_MODE (1 << 0)
+
+/* synaptics model ID bits */
+#define SYN_MODEL_ROT180(m) ((m) & (1 << 23))
+#define SYN_MODEL_PORTRAIT(m) ((m) & (1 << 22))
+#define SYN_MODEL_SENSOR(m) (((m) >> 16) & 0x3f)
+#define SYN_MODEL_HARDWARE(m) (((m) >> 9) & 0x7f)
+#define SYN_MODEL_NEWABS(m) ((m) & (1 << 7))
+#define SYN_MODEL_PEN(m) ((m) & (1 << 6))
+#define SYN_MODEL_SIMPLIC(m) ((m) & (1 << 5))
+#define SYN_MODEL_GEOMETRY(m) ((m) & 0x0f)
+
+/* synaptics capability bits */
+#define SYN_CAP_EXTENDED(c) ((c) & (1 << 23))
+#define SYN_CAP_MIDDLE_BUTTON(c) ((c) & (1 << 18))
+#define SYN_CAP_PASS_THROUGH(c) ((c) & (1 << 7))
+#define SYN_CAP_SLEEP(c) ((c) & (1 << 4))
+#define SYN_CAP_FOUR_BUTTON(c) ((c) & (1 << 3))
+#define SYN_CAP_MULTIFINGER(c) ((c) & (1 << 1))
+#define SYN_CAP_PALMDETECT(c) ((c) & (1 << 0))
+#define SYN_CAP_SUBMODEL_ID(c) (((c) & 0x00ff00) >> 8)
+#define SYN_EXT_CAP_REQUESTS(c) (((c) & 0x700000) >> 20)
+#define SYN_CAP_MULTI_BUTTON_NO(ec) (((ec) & 0x00f000) >> 12)
+#define SYN_CAP_PRODUCT_ID(ec) (((ec) & 0xff0000) >> 16)
+
+/*
+ * The following describes response for the 0x0c query.
+ *
+ * byte mask name meaning
+ * ---- ---- ------- ------------
+ * 1 0x01 adjustable threshold capacitive button sensitivity
+ * can be adjusted
+ * 1 0x02 report max query 0x0d gives max coord reported
+ * 1 0x04 clearpad sensor is ClearPad product
+ * 1 0x08 advanced gesture not particularly meaningful
+ * 1 0x10 clickpad bit 0 1-button ClickPad
+ * 1 0x60 multifinger mode identifies firmware finger counting
+ * (not reporting!) algorithm.
+ * Not particularly meaningful
+ * 1 0x80 covered pad W clipped to 14, 15 == pad mostly covered
+ * 2 0x01 clickpad bit 1 2-button ClickPad
+ * 2 0x02 deluxe LED controls touchpad support LED commands
+ * ala multimedia control bar
+ * 2 0x04 reduced filtering firmware does less filtering on
+ * position data, driver should watch
+ * for noise.
+ * 2 0x08 image sensor image sensor tracks 5 fingers, but only
+ * reports 2.
+ * 2 0x20 report min query 0x0f gives min coord reported
+ */
+#define SYN_CAP_CLICKPAD(ex0c) ((ex0c) & 0x100000) /* 1-button ClickPad */
+#define SYN_CAP_CLICKPAD2BTN(ex0c) ((ex0c) & 0x000100) /* 2-button ClickPad */
+#define SYN_CAP_MAX_DIMENSIONS(ex0c) ((ex0c) & 0x020000)
+#define SYN_CAP_MIN_DIMENSIONS(ex0c) ((ex0c) & 0x002000)
+#define SYN_CAP_ADV_GESTURE(ex0c) ((ex0c) & 0x080000)
+#define SYN_CAP_REDUCED_FILTERING(ex0c) ((ex0c) & 0x000400)
+#define SYN_CAP_IMAGE_SENSOR(ex0c) ((ex0c) & 0x000800)
+
+/* synaptics modes query bits */
+#define SYN_MODE_ABSOLUTE(m) ((m) & (1 << 7))
+#define SYN_MODE_RATE(m) ((m) & (1 << 6))
+#define SYN_MODE_BAUD_SLEEP(m) ((m) & (1 << 3))
+#define SYN_MODE_DISABLE_GESTURE(m) ((m) & (1 << 2))
+#define SYN_MODE_PACKSIZE(m) ((m) & (1 << 1))
+#define SYN_MODE_WMODE(m) ((m) & (1 << 0))
+
+/* synaptics identify query bits */
+#define SYN_ID_MODEL(i) (((i) >> 4) & 0x0f)
+#define SYN_ID_MAJOR(i) ((i) & 0x0f)
+#define SYN_ID_MINOR(i) (((i) >> 16) & 0xff)
+#define SYN_ID_FULL(i) ((SYN_ID_MAJOR(i) << 8) | SYN_ID_MINOR(i))
+#define SYN_ID_IS_SYNAPTICS(i) ((((i) >> 8) & 0xff) == 0x47)
+
+/* synaptics special commands */
+#define SYN_PS_SET_MODE2 0x14
+#define SYN_PS_CLIENT_CMD 0x28
+
+/* synaptics packet types */
+#define SYN_NEWABS 0
+#define SYN_NEWABS_STRICT 1
+#define SYN_NEWABS_RELAXED 2
+#define SYN_OLDABS 3
+
+/* amount to fuzz position data when touchpad reports reduced filtering */
+#define SYN_REDUCED_FILTER_FUZZ 8
+
+/*
+ * A structure to describe which internal touchpad finger slots are being
+ * reported in raw packets.
+ */
+struct synaptics_mt_state {
+ int count; /* num fingers being tracked */
+ int sgm; /* which slot is reported by sgm pkt */
+ int agm; /* which slot is reported by agm pkt*/
+};
+
+/*
+ * A structure to describe the state of the touchpad hardware (buttons and pad)
+ */
+struct synaptics_hw_state {
+ int x;
+ int y;
+ int z;
+ int w;
+ unsigned int left:1;
+ unsigned int right:1;
+ unsigned int middle:1;
+ unsigned int up:1;
+ unsigned int down:1;
+ unsigned char ext_buttons;
+ signed char scroll;
+
+ /* As reported in last AGM-CONTACT packets */
+ struct synaptics_mt_state mt_state;
+};
+
+struct synaptics_data {
+ /* Data read from the touchpad */
+ unsigned long int model_id; /* Model-ID */
+ unsigned long int capabilities; /* Capabilities */
+ unsigned long int ext_cap; /* Extended Capabilities */
+ unsigned long int ext_cap_0c; /* Ext Caps from 0x0c query */
+ unsigned long int identity; /* Identification */
+ unsigned int x_res, y_res; /* X/Y resolution in units/mm */
+ unsigned int x_max, y_max; /* Max coordinates (from FW) */
+ unsigned int x_min, y_min; /* Min coordinates (from FW) */
+
+ unsigned char pkt_type; /* packet type - old, new, etc */
+ unsigned char mode; /* current mode byte */
+ int scroll;
+
+ struct serio *pt_port; /* Pass-through serio port */
+
+ struct synaptics_mt_state mt_state; /* Current mt finger state */
+ bool mt_state_lost; /* mt_state may be incorrect */
+
+ /*
+ * Last received Advanced Gesture Mode (AGM) packet. An AGM packet
+ * contains position data for a second contact, at half resolution.
+ */
+ struct synaptics_hw_state agm;
+ bool agm_pending; /* new AGM packet received */
+};
+
+void synaptics_module_init(void);
+int synaptics_detect(struct psmouse *psmouse, bool set_properties);
+int synaptics_init(struct psmouse *psmouse);
+void synaptics_reset(struct psmouse *psmouse);
+bool synaptics_supported(void);
+
+#endif /* _SYNAPTICS_H */
diff --git a/drivers/input/mouse/synaptics_i2c.c b/drivers/input/mouse/synaptics_i2c.c
new file mode 100644
index 0000000..4b755cb
--- /dev/null
+++ b/drivers/input/mouse/synaptics_i2c.c
@@ -0,0 +1,691 @@
+/*
+ * Synaptics touchpad with I2C interface
+ *
+ * Copyright (C) 2009 Compulab, Ltd.
+ * Mike Rapoport <mike@compulab.co.il>
+ * Igor Grinberg <grinberg@compulab.co.il>
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file COPYING in the main directory of this archive for
+ * more details.
+ */
+
+#include <linux/module.h>
+#include <linux/i2c.h>
+#include <linux/irq.h>
+#include <linux/interrupt.h>
+#include <linux/input.h>
+#include <linux/delay.h>
+#include <linux/workqueue.h>
+#include <linux/slab.h>
+#include <linux/pm.h>
+
+#define DRIVER_NAME "synaptics_i2c"
+/* maximum product id is 15 characters */
+#define PRODUCT_ID_LENGTH 15
+#define REGISTER_LENGTH 8
+
+/*
+ * after soft reset, we should wait for 1 ms
+ * before the device becomes operational
+ */
+#define SOFT_RESET_DELAY_MS 3
+/* and after hard reset, we should wait for max 500ms */
+#define HARD_RESET_DELAY_MS 500
+
+/* Registers by SMBus address */
+#define PAGE_SEL_REG 0xff
+#define DEVICE_STATUS_REG 0x09
+
+/* Registers by RMI address */
+#define DEV_CONTROL_REG 0x0000
+#define INTERRUPT_EN_REG 0x0001
+#define ERR_STAT_REG 0x0002
+#define INT_REQ_STAT_REG 0x0003
+#define DEV_COMMAND_REG 0x0004
+
+#define RMI_PROT_VER_REG 0x0200
+#define MANUFACT_ID_REG 0x0201
+#define PHYS_INT_VER_REG 0x0202
+#define PROD_PROPERTY_REG 0x0203
+#define INFO_QUERY_REG0 0x0204
+#define INFO_QUERY_REG1 (INFO_QUERY_REG0 + 1)
+#define INFO_QUERY_REG2 (INFO_QUERY_REG0 + 2)
+#define INFO_QUERY_REG3 (INFO_QUERY_REG0 + 3)
+
+#define PRODUCT_ID_REG0 0x0210
+#define PRODUCT_ID_REG1 (PRODUCT_ID_REG0 + 1)
+#define PRODUCT_ID_REG2 (PRODUCT_ID_REG0 + 2)
+#define PRODUCT_ID_REG3 (PRODUCT_ID_REG0 + 3)
+#define PRODUCT_ID_REG4 (PRODUCT_ID_REG0 + 4)
+#define PRODUCT_ID_REG5 (PRODUCT_ID_REG0 + 5)
+#define PRODUCT_ID_REG6 (PRODUCT_ID_REG0 + 6)
+#define PRODUCT_ID_REG7 (PRODUCT_ID_REG0 + 7)
+#define PRODUCT_ID_REG8 (PRODUCT_ID_REG0 + 8)
+#define PRODUCT_ID_REG9 (PRODUCT_ID_REG0 + 9)
+#define PRODUCT_ID_REG10 (PRODUCT_ID_REG0 + 10)
+#define PRODUCT_ID_REG11 (PRODUCT_ID_REG0 + 11)
+#define PRODUCT_ID_REG12 (PRODUCT_ID_REG0 + 12)
+#define PRODUCT_ID_REG13 (PRODUCT_ID_REG0 + 13)
+#define PRODUCT_ID_REG14 (PRODUCT_ID_REG0 + 14)
+#define PRODUCT_ID_REG15 (PRODUCT_ID_REG0 + 15)
+
+#define DATA_REG0 0x0400
+#define ABS_PRESSURE_REG 0x0401
+#define ABS_MSB_X_REG 0x0402
+#define ABS_LSB_X_REG (ABS_MSB_X_REG + 1)
+#define ABS_MSB_Y_REG 0x0404
+#define ABS_LSB_Y_REG (ABS_MSB_Y_REG + 1)
+#define REL_X_REG 0x0406
+#define REL_Y_REG 0x0407
+
+#define DEV_QUERY_REG0 0x1000
+#define DEV_QUERY_REG1 (DEV_QUERY_REG0 + 1)
+#define DEV_QUERY_REG2 (DEV_QUERY_REG0 + 2)
+#define DEV_QUERY_REG3 (DEV_QUERY_REG0 + 3)
+#define DEV_QUERY_REG4 (DEV_QUERY_REG0 + 4)
+#define DEV_QUERY_REG5 (DEV_QUERY_REG0 + 5)
+#define DEV_QUERY_REG6 (DEV_QUERY_REG0 + 6)
+#define DEV_QUERY_REG7 (DEV_QUERY_REG0 + 7)
+#define DEV_QUERY_REG8 (DEV_QUERY_REG0 + 8)
+
+#define GENERAL_2D_CONTROL_REG 0x1041
+#define SENSOR_SENSITIVITY_REG 0x1044
+#define SENS_MAX_POS_MSB_REG 0x1046
+#define SENS_MAX_POS_LSB_REG (SENS_MAX_POS_UPPER_REG + 1)
+
+/* Register bits */
+/* Device Control Register Bits */
+#define REPORT_RATE_1ST_BIT 6
+
+/* Interrupt Enable Register Bits (INTERRUPT_EN_REG) */
+#define F10_ABS_INT_ENA 0
+#define F10_REL_INT_ENA 1
+#define F20_INT_ENA 2
+
+/* Interrupt Request Register Bits (INT_REQ_STAT_REG | DEVICE_STATUS_REG) */
+#define F10_ABS_INT_REQ 0
+#define F10_REL_INT_REQ 1
+#define F20_INT_REQ 2
+/* Device Status Register Bits (DEVICE_STATUS_REG) */
+#define STAT_CONFIGURED 6
+#define STAT_ERROR 7
+
+/* Device Command Register Bits (DEV_COMMAND_REG) */
+#define RESET_COMMAND 0x01
+#define REZERO_COMMAND 0x02
+
+/* Data Register 0 Bits (DATA_REG0) */
+#define GESTURE 3
+
+/* Device Query Registers Bits */
+/* DEV_QUERY_REG3 */
+#define HAS_PALM_DETECT 1
+#define HAS_MULTI_FING 2
+#define HAS_SCROLLER 4
+#define HAS_2D_SCROLL 5
+
+/* General 2D Control Register Bits (GENERAL_2D_CONTROL_REG) */
+#define NO_DECELERATION 1
+#define REDUCE_REPORTING 3
+#define NO_FILTER 5
+
+/* Function Masks */
+/* Device Control Register Masks (DEV_CONTROL_REG) */
+#define REPORT_RATE_MSK 0xc0
+#define SLEEP_MODE_MSK 0x07
+
+/* Device Sleep Modes */
+#define FULL_AWAKE 0x0
+#define NORMAL_OP 0x1
+#define LOW_PWR_OP 0x2
+#define VERY_LOW_PWR_OP 0x3
+#define SENS_SLEEP 0x4
+#define SLEEP_MOD 0x5
+#define DEEP_SLEEP 0x6
+#define HIBERNATE 0x7
+
+/* Interrupt Register Mask */
+/* (INT_REQ_STAT_REG | DEVICE_STATUS_REG | INTERRUPT_EN_REG) */
+#define INT_ENA_REQ_MSK 0x07
+#define INT_ENA_ABS_MSK 0x01
+#define INT_ENA_REL_MSK 0x02
+#define INT_ENA_F20_MSK 0x04
+
+/* Device Status Register Masks (DEVICE_STATUS_REG) */
+#define CONFIGURED_MSK 0x40
+#define ERROR_MSK 0x80
+
+/* Data Register 0 Masks */
+#define FINGER_WIDTH_MSK 0xf0
+#define GESTURE_MSK 0x08
+#define SENSOR_STATUS_MSK 0x07
+
+/*
+ * MSB Position Register Masks
+ * ABS_MSB_X_REG | ABS_MSB_Y_REG | SENS_MAX_POS_MSB_REG |
+ * DEV_QUERY_REG3 | DEV_QUERY_REG5
+ */
+#define MSB_POSITION_MSK 0x1f
+
+/* Device Query Registers Masks */
+
+/* DEV_QUERY_REG2 */
+#define NUM_EXTRA_POS_MSK 0x07
+
+/* When in IRQ mode read the device every THREAD_IRQ_SLEEP_SECS */
+#define THREAD_IRQ_SLEEP_SECS 2
+#define THREAD_IRQ_SLEEP_MSECS (THREAD_IRQ_SLEEP_SECS * MSEC_PER_SEC)
+
+/*
+ * When in Polling mode and no data received for NO_DATA_THRES msecs
+ * reduce the polling rate to NO_DATA_SLEEP_MSECS
+ */
+#define NO_DATA_THRES (MSEC_PER_SEC)
+#define NO_DATA_SLEEP_MSECS (MSEC_PER_SEC / 4)
+
+/* Control touchpad's No Deceleration option */
+static int no_decel = 1;
+module_param(no_decel, bool, 0644);
+MODULE_PARM_DESC(no_decel, "No Deceleration. Default = 1 (on)");
+
+/* Control touchpad's Reduced Reporting option */
+static int reduce_report;
+module_param(reduce_report, bool, 0644);
+MODULE_PARM_DESC(reduce_report, "Reduced Reporting. Default = 0 (off)");
+
+/* Control touchpad's No Filter option */
+static int no_filter;
+module_param(no_filter, bool, 0644);
+MODULE_PARM_DESC(no_filter, "No Filter. Default = 0 (off)");
+
+/*
+ * touchpad Attention line is Active Low and Open Drain,
+ * therefore should be connected to pulled up line
+ * and the irq configuration should be set to Falling Edge Trigger
+ */
+/* Control IRQ / Polling option */
+static bool polling_req;
+module_param(polling_req, bool, 0444);
+MODULE_PARM_DESC(polling_req, "Request Polling. Default = 0 (use irq)");
+
+/* Control Polling Rate */
+static int scan_rate = 80;
+module_param(scan_rate, int, 0644);
+MODULE_PARM_DESC(scan_rate, "Polling rate in times/sec. Default = 80");
+
+/* The main device structure */
+struct synaptics_i2c {
+ struct i2c_client *client;
+ struct input_dev *input;
+ struct delayed_work dwork;
+ spinlock_t lock;
+ int no_data_count;
+ int no_decel_param;
+ int reduce_report_param;
+ int no_filter_param;
+ int scan_rate_param;
+ int scan_ms;
+};
+
+static inline void set_scan_rate(struct synaptics_i2c *touch, int scan_rate)
+{
+ touch->scan_ms = MSEC_PER_SEC / scan_rate;
+ touch->scan_rate_param = scan_rate;
+}
+
+/*
+ * Driver's initial design makes no race condition possible on i2c bus,
+ * so there is no need in any locking.
+ * Keep it in mind, while playing with the code.
+ */
+static s32 synaptics_i2c_reg_get(struct i2c_client *client, u16 reg)
+{
+ int ret;
+
+ ret = i2c_smbus_write_byte_data(client, PAGE_SEL_REG, reg >> 8);
+ if (ret == 0)
+ ret = i2c_smbus_read_byte_data(client, reg & 0xff);
+
+ return ret;
+}
+
+static s32 synaptics_i2c_reg_set(struct i2c_client *client, u16 reg, u8 val)
+{
+ int ret;
+
+ ret = i2c_smbus_write_byte_data(client, PAGE_SEL_REG, reg >> 8);
+ if (ret == 0)
+ ret = i2c_smbus_write_byte_data(client, reg & 0xff, val);
+
+ return ret;
+}
+
+static s32 synaptics_i2c_word_get(struct i2c_client *client, u16 reg)
+{
+ int ret;
+
+ ret = i2c_smbus_write_byte_data(client, PAGE_SEL_REG, reg >> 8);
+ if (ret == 0)
+ ret = i2c_smbus_read_word_data(client, reg & 0xff);
+
+ return ret;
+}
+
+static int synaptics_i2c_config(struct i2c_client *client)
+{
+ int ret, control;
+ u8 int_en;
+
+ /* set Report Rate to Device Highest (>=80) and Sleep to normal */
+ ret = synaptics_i2c_reg_set(client, DEV_CONTROL_REG, 0xc1);
+ if (ret)
+ return ret;
+
+ /* set Interrupt Disable to Func20 / Enable to Func10) */
+ int_en = (polling_req) ? 0 : INT_ENA_ABS_MSK | INT_ENA_REL_MSK;
+ ret = synaptics_i2c_reg_set(client, INTERRUPT_EN_REG, int_en);
+ if (ret)
+ return ret;
+
+ control = synaptics_i2c_reg_get(client, GENERAL_2D_CONTROL_REG);
+ /* No Deceleration */
+ control |= no_decel ? 1 << NO_DECELERATION : 0;
+ /* Reduced Reporting */
+ control |= reduce_report ? 1 << REDUCE_REPORTING : 0;
+ /* No Filter */
+ control |= no_filter ? 1 << NO_FILTER : 0;
+ ret = synaptics_i2c_reg_set(client, GENERAL_2D_CONTROL_REG, control);
+ if (ret)
+ return ret;
+
+ return 0;
+}
+
+static int synaptics_i2c_reset_config(struct i2c_client *client)
+{
+ int ret;
+
+ /* Reset the Touchpad */
+ ret = synaptics_i2c_reg_set(client, DEV_COMMAND_REG, RESET_COMMAND);
+ if (ret) {
+ dev_err(&client->dev, "Unable to reset device\n");
+ } else {
+ msleep(SOFT_RESET_DELAY_MS);
+ ret = synaptics_i2c_config(client);
+ if (ret)
+ dev_err(&client->dev, "Unable to config device\n");
+ }
+
+ return ret;
+}
+
+static int synaptics_i2c_check_error(struct i2c_client *client)
+{
+ int status, ret = 0;
+
+ status = i2c_smbus_read_byte_data(client, DEVICE_STATUS_REG) &
+ (CONFIGURED_MSK | ERROR_MSK);
+
+ if (status != CONFIGURED_MSK)
+ ret = synaptics_i2c_reset_config(client);
+
+ return ret;
+}
+
+static bool synaptics_i2c_get_input(struct synaptics_i2c *touch)
+{
+ struct input_dev *input = touch->input;
+ int xy_delta, gesture;
+ s32 data;
+ s8 x_delta, y_delta;
+
+ /* Deal with spontanious resets and errors */
+ if (synaptics_i2c_check_error(touch->client))
+ return 0;
+
+ /* Get Gesture Bit */
+ data = synaptics_i2c_reg_get(touch->client, DATA_REG0);
+ gesture = (data >> GESTURE) & 0x1;
+
+ /*
+ * Get Relative axes. we have to get them in one shot,
+ * so we get 2 bytes starting from REL_X_REG.
+ */
+ xy_delta = synaptics_i2c_word_get(touch->client, REL_X_REG) & 0xffff;
+
+ /* Separate X from Y */
+ x_delta = xy_delta & 0xff;
+ y_delta = (xy_delta >> REGISTER_LENGTH) & 0xff;
+
+ /* Report the button event */
+ input_report_key(input, BTN_LEFT, gesture);
+
+ /* Report the deltas */
+ input_report_rel(input, REL_X, x_delta);
+ input_report_rel(input, REL_Y, -y_delta);
+ input_sync(input);
+
+ return xy_delta || gesture;
+}
+
+static void synaptics_i2c_reschedule_work(struct synaptics_i2c *touch,
+ unsigned long delay)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&touch->lock, flags);
+
+ /*
+ * If work is already scheduled then subsequent schedules will not
+ * change the scheduled time that's why we have to cancel it first.
+ */
+ __cancel_delayed_work(&touch->dwork);
+ schedule_delayed_work(&touch->dwork, delay);
+
+ spin_unlock_irqrestore(&touch->lock, flags);
+}
+
+static irqreturn_t synaptics_i2c_irq(int irq, void *dev_id)
+{
+ struct synaptics_i2c *touch = dev_id;
+
+ synaptics_i2c_reschedule_work(touch, 0);
+
+ return IRQ_HANDLED;
+}
+
+static void synaptics_i2c_check_params(struct synaptics_i2c *touch)
+{
+ bool reset = false;
+
+ if (scan_rate != touch->scan_rate_param)
+ set_scan_rate(touch, scan_rate);
+
+ if (no_decel != touch->no_decel_param) {
+ touch->no_decel_param = no_decel;
+ reset = true;
+ }
+
+ if (no_filter != touch->no_filter_param) {
+ touch->no_filter_param = no_filter;
+ reset = true;
+ }
+
+ if (reduce_report != touch->reduce_report_param) {
+ touch->reduce_report_param = reduce_report;
+ reset = true;
+ }
+
+ if (reset)
+ synaptics_i2c_reset_config(touch->client);
+}
+
+/* Control the Device polling rate / Work Handler sleep time */
+static unsigned long synaptics_i2c_adjust_delay(struct synaptics_i2c *touch,
+ bool have_data)
+{
+ unsigned long delay, nodata_count_thres;
+
+ if (polling_req) {
+ delay = touch->scan_ms;
+ if (have_data) {
+ touch->no_data_count = 0;
+ } else {
+ nodata_count_thres = NO_DATA_THRES / touch->scan_ms;
+ if (touch->no_data_count < nodata_count_thres)
+ touch->no_data_count++;
+ else
+ delay = NO_DATA_SLEEP_MSECS;
+ }
+ return msecs_to_jiffies(delay);
+ } else {
+ delay = msecs_to_jiffies(THREAD_IRQ_SLEEP_MSECS);
+ return round_jiffies_relative(delay);
+ }
+}
+
+/* Work Handler */
+static void synaptics_i2c_work_handler(struct work_struct *work)
+{
+ bool have_data;
+ struct synaptics_i2c *touch =
+ container_of(work, struct synaptics_i2c, dwork.work);
+ unsigned long delay;
+
+ synaptics_i2c_check_params(touch);
+
+ have_data = synaptics_i2c_get_input(touch);
+ delay = synaptics_i2c_adjust_delay(touch, have_data);
+
+ /*
+ * While interrupt driven, there is no real need to poll the device.
+ * But touchpads are very sensitive, so there could be errors
+ * related to physical environment and the attention line isn't
+ * necessarily asserted. In such case we can lose the touchpad.
+ * We poll the device once in THREAD_IRQ_SLEEP_SECS and
+ * if error is detected, we try to reset and reconfigure the touchpad.
+ */
+ synaptics_i2c_reschedule_work(touch, delay);
+}
+
+static int synaptics_i2c_open(struct input_dev *input)
+{
+ struct synaptics_i2c *touch = input_get_drvdata(input);
+ int ret;
+
+ ret = synaptics_i2c_reset_config(touch->client);
+ if (ret)
+ return ret;
+
+ if (polling_req)
+ synaptics_i2c_reschedule_work(touch,
+ msecs_to_jiffies(NO_DATA_SLEEP_MSECS));
+
+ return 0;
+}
+
+static void synaptics_i2c_close(struct input_dev *input)
+{
+ struct synaptics_i2c *touch = input_get_drvdata(input);
+
+ if (!polling_req)
+ synaptics_i2c_reg_set(touch->client, INTERRUPT_EN_REG, 0);
+
+ cancel_delayed_work_sync(&touch->dwork);
+
+ /* Save some power */
+ synaptics_i2c_reg_set(touch->client, DEV_CONTROL_REG, DEEP_SLEEP);
+}
+
+static void synaptics_i2c_set_input_params(struct synaptics_i2c *touch)
+{
+ struct input_dev *input = touch->input;
+
+ input->name = touch->client->name;
+ input->phys = touch->client->adapter->name;
+ input->id.bustype = BUS_I2C;
+ input->id.version = synaptics_i2c_word_get(touch->client,
+ INFO_QUERY_REG0);
+ input->dev.parent = &touch->client->dev;
+ input->open = synaptics_i2c_open;
+ input->close = synaptics_i2c_close;
+ input_set_drvdata(input, touch);
+
+ /* Register the device as mouse */
+ __set_bit(EV_REL, input->evbit);
+ __set_bit(REL_X, input->relbit);
+ __set_bit(REL_Y, input->relbit);
+
+ /* Register device's buttons and keys */
+ __set_bit(EV_KEY, input->evbit);
+ __set_bit(BTN_LEFT, input->keybit);
+}
+
+static struct synaptics_i2c *synaptics_i2c_touch_create(struct i2c_client *client)
+{
+ struct synaptics_i2c *touch;
+
+ touch = kzalloc(sizeof(struct synaptics_i2c), GFP_KERNEL);
+ if (!touch)
+ return NULL;
+
+ touch->client = client;
+ touch->no_decel_param = no_decel;
+ touch->scan_rate_param = scan_rate;
+ set_scan_rate(touch, scan_rate);
+ INIT_DELAYED_WORK(&touch->dwork, synaptics_i2c_work_handler);
+ spin_lock_init(&touch->lock);
+
+ return touch;
+}
+
+static int __devinit synaptics_i2c_probe(struct i2c_client *client,
+ const struct i2c_device_id *dev_id)
+{
+ int ret;
+ struct synaptics_i2c *touch;
+
+ touch = synaptics_i2c_touch_create(client);
+ if (!touch)
+ return -ENOMEM;
+
+ ret = synaptics_i2c_reset_config(client);
+ if (ret)
+ goto err_mem_free;
+
+ if (client->irq < 1)
+ polling_req = true;
+
+ touch->input = input_allocate_device();
+ if (!touch->input) {
+ ret = -ENOMEM;
+ goto err_mem_free;
+ }
+
+ synaptics_i2c_set_input_params(touch);
+
+ if (!polling_req) {
+ dev_dbg(&touch->client->dev,
+ "Requesting IRQ: %d\n", touch->client->irq);
+
+ ret = request_irq(touch->client->irq, synaptics_i2c_irq,
+ IRQ_TYPE_EDGE_FALLING,
+ DRIVER_NAME, touch);
+ if (ret) {
+ dev_warn(&touch->client->dev,
+ "IRQ request failed: %d, "
+ "falling back to polling\n", ret);
+ polling_req = true;
+ synaptics_i2c_reg_set(touch->client,
+ INTERRUPT_EN_REG, 0);
+ }
+ }
+
+ if (polling_req)
+ dev_dbg(&touch->client->dev,
+ "Using polling at rate: %d times/sec\n", scan_rate);
+
+ /* Register the device in input subsystem */
+ ret = input_register_device(touch->input);
+ if (ret) {
+ dev_err(&client->dev,
+ "Input device register failed: %d\n", ret);
+ goto err_input_free;
+ }
+
+ i2c_set_clientdata(client, touch);
+
+ return 0;
+
+err_input_free:
+ input_free_device(touch->input);
+err_mem_free:
+ kfree(touch);
+
+ return ret;
+}
+
+static int __devexit synaptics_i2c_remove(struct i2c_client *client)
+{
+ struct synaptics_i2c *touch = i2c_get_clientdata(client);
+
+ if (!polling_req)
+ free_irq(client->irq, touch);
+
+ input_unregister_device(touch->input);
+ kfree(touch);
+
+ return 0;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int synaptics_i2c_suspend(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct synaptics_i2c *touch = i2c_get_clientdata(client);
+
+ cancel_delayed_work_sync(&touch->dwork);
+
+ /* Save some power */
+ synaptics_i2c_reg_set(touch->client, DEV_CONTROL_REG, DEEP_SLEEP);
+
+ return 0;
+}
+
+static int synaptics_i2c_resume(struct device *dev)
+{
+ int ret;
+ struct i2c_client *client = to_i2c_client(dev);
+ struct synaptics_i2c *touch = i2c_get_clientdata(client);
+
+ ret = synaptics_i2c_reset_config(client);
+ if (ret)
+ return ret;
+
+ synaptics_i2c_reschedule_work(touch,
+ msecs_to_jiffies(NO_DATA_SLEEP_MSECS));
+
+ return 0;
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(synaptics_i2c_pm, synaptics_i2c_suspend,
+ synaptics_i2c_resume);
+
+static const struct i2c_device_id synaptics_i2c_id_table[] = {
+ { "synaptics_i2c", 0 },
+ { },
+};
+MODULE_DEVICE_TABLE(i2c, synaptics_i2c_id_table);
+
+static struct i2c_driver synaptics_i2c_driver = {
+ .driver = {
+ .name = DRIVER_NAME,
+ .owner = THIS_MODULE,
+ .pm = &synaptics_i2c_pm,
+ },
+
+ .probe = synaptics_i2c_probe,
+ .remove = __devexit_p(synaptics_i2c_remove),
+
+ .id_table = synaptics_i2c_id_table,
+};
+
+static int __init synaptics_i2c_init(void)
+{
+ return i2c_add_driver(&synaptics_i2c_driver);
+}
+
+static void __exit synaptics_i2c_exit(void)
+{
+ i2c_del_driver(&synaptics_i2c_driver);
+}
+
+module_init(synaptics_i2c_init);
+module_exit(synaptics_i2c_exit);
+
+MODULE_DESCRIPTION("Synaptics I2C touchpad driver");
+MODULE_AUTHOR("Mike Rapoport, Igor Grinberg, Compulab");
+MODULE_LICENSE("GPL");
+
diff --git a/drivers/input/mouse/touchkit_ps2.c b/drivers/input/mouse/touchkit_ps2.c
new file mode 100644
index 0000000..1fd8f5e
--- /dev/null
+++ b/drivers/input/mouse/touchkit_ps2.c
@@ -0,0 +1,100 @@
+/* ----------------------------------------------------------------------------
+ * touchkit_ps2.c -- Driver for eGalax TouchKit PS/2 Touchscreens
+ *
+ * Copyright (C) 2005 by Stefan Lucke
+ * Copyright (C) 2004 by Daniel Ritz
+ * Copyright (C) by Todd E. Johnson (mtouchusb.c)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * Based upon touchkitusb.c
+ *
+ * Vendor documentation is available at:
+ * http://home.eeti.com.tw/web20/drivers/Software%20Programming%20Guide_v2.0.pdf
+ */
+
+#include <linux/kernel.h>
+
+#include <linux/input.h>
+#include <linux/serio.h>
+#include <linux/libps2.h>
+
+#include "psmouse.h"
+#include "touchkit_ps2.h"
+
+#define TOUCHKIT_MAX_XC 0x07ff
+#define TOUCHKIT_MAX_YC 0x07ff
+
+#define TOUCHKIT_CMD 0x0a
+#define TOUCHKIT_CMD_LENGTH 1
+
+#define TOUCHKIT_CMD_ACTIVE 'A'
+#define TOUCHKIT_CMD_FIRMWARE_VERSION 'D'
+#define TOUCHKIT_CMD_CONTROLLER_TYPE 'E'
+
+#define TOUCHKIT_SEND_PARMS(s, r, c) ((s) << 12 | (r) << 8 | (c))
+
+#define TOUCHKIT_GET_TOUCHED(packet) (((packet)[0]) & 0x01)
+#define TOUCHKIT_GET_X(packet) (((packet)[1] << 7) | (packet)[2])
+#define TOUCHKIT_GET_Y(packet) (((packet)[3] << 7) | (packet)[4])
+
+static psmouse_ret_t touchkit_ps2_process_byte(struct psmouse *psmouse)
+{
+ unsigned char *packet = psmouse->packet;
+ struct input_dev *dev = psmouse->dev;
+
+ if (psmouse->pktcnt != 5)
+ return PSMOUSE_GOOD_DATA;
+
+ input_report_abs(dev, ABS_X, TOUCHKIT_GET_X(packet));
+ input_report_abs(dev, ABS_Y, TOUCHKIT_GET_Y(packet));
+ input_report_key(dev, BTN_TOUCH, TOUCHKIT_GET_TOUCHED(packet));
+ input_sync(dev);
+
+ return PSMOUSE_FULL_PACKET;
+}
+
+int touchkit_ps2_detect(struct psmouse *psmouse, bool set_properties)
+{
+ struct input_dev *dev = psmouse->dev;
+ unsigned char param[3];
+ int command;
+
+ param[0] = TOUCHKIT_CMD_LENGTH;
+ param[1] = TOUCHKIT_CMD_ACTIVE;
+ command = TOUCHKIT_SEND_PARMS(2, 3, TOUCHKIT_CMD);
+
+ if (ps2_command(&psmouse->ps2dev, param, command))
+ return -ENODEV;
+
+ if (param[0] != TOUCHKIT_CMD || param[1] != 0x01 ||
+ param[2] != TOUCHKIT_CMD_ACTIVE)
+ return -ENODEV;
+
+ if (set_properties) {
+ dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
+ dev->keybit[BIT_WORD(BTN_MOUSE)] = 0;
+ dev->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH);
+ input_set_abs_params(dev, ABS_X, 0, TOUCHKIT_MAX_XC, 0, 0);
+ input_set_abs_params(dev, ABS_Y, 0, TOUCHKIT_MAX_YC, 0, 0);
+
+ psmouse->vendor = "eGalax";
+ psmouse->name = "Touchscreen";
+ psmouse->protocol_handler = touchkit_ps2_process_byte;
+ psmouse->pktsize = 5;
+ }
+
+ return 0;
+}
diff --git a/drivers/input/mouse/touchkit_ps2.h b/drivers/input/mouse/touchkit_ps2.h
new file mode 100644
index 0000000..2efe9ea
--- /dev/null
+++ b/drivers/input/mouse/touchkit_ps2.h
@@ -0,0 +1,25 @@
+/* ----------------------------------------------------------------------------
+ * touchkit_ps2.h -- Driver for eGalax TouchKit PS/2 Touchscreens
+ *
+ * Copyright (C) 2005 by Stefan Lucke
+ * Copyright (c) 2005 Vojtech Pavlik
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ */
+
+#ifndef _TOUCHKIT_PS2_H
+#define _TOUCHKIT_PS2_H
+
+#ifdef CONFIG_MOUSE_PS2_TOUCHKIT
+int touchkit_ps2_detect(struct psmouse *psmouse, bool set_properties);
+#else
+static inline int touchkit_ps2_detect(struct psmouse *psmouse,
+ bool set_properties)
+{
+ return -ENOSYS;
+}
+#endif /* CONFIG_MOUSE_PS2_TOUCHKIT */
+
+#endif
diff --git a/drivers/input/mouse/trackpoint.c b/drivers/input/mouse/trackpoint.c
new file mode 100644
index 0000000..54b2fa8
--- /dev/null
+++ b/drivers/input/mouse/trackpoint.c
@@ -0,0 +1,335 @@
+/*
+ * Stephen Evanchik <evanchsa@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * Trademarks are the property of their respective owners.
+ */
+
+#include <linux/slab.h>
+#include <linux/delay.h>
+#include <linux/serio.h>
+#include <linux/module.h>
+#include <linux/input.h>
+#include <linux/libps2.h>
+#include <linux/proc_fs.h>
+#include <asm/uaccess.h>
+#include "psmouse.h"
+#include "trackpoint.h"
+
+/*
+ * Device IO: read, write and toggle bit
+ */
+static int trackpoint_read(struct ps2dev *ps2dev, unsigned char loc, unsigned char *results)
+{
+ if (ps2_command(ps2dev, NULL, MAKE_PS2_CMD(0, 0, TP_COMMAND)) ||
+ ps2_command(ps2dev, results, MAKE_PS2_CMD(0, 1, loc))) {
+ return -1;
+ }
+
+ return 0;
+}
+
+static int trackpoint_write(struct ps2dev *ps2dev, unsigned char loc, unsigned char val)
+{
+ if (ps2_command(ps2dev, NULL, MAKE_PS2_CMD(0, 0, TP_COMMAND)) ||
+ ps2_command(ps2dev, NULL, MAKE_PS2_CMD(0, 0, TP_WRITE_MEM)) ||
+ ps2_command(ps2dev, NULL, MAKE_PS2_CMD(0, 0, loc)) ||
+ ps2_command(ps2dev, NULL, MAKE_PS2_CMD(0, 0, val))) {
+ return -1;
+ }
+
+ return 0;
+}
+
+static int trackpoint_toggle_bit(struct ps2dev *ps2dev, unsigned char loc, unsigned char mask)
+{
+ /* Bad things will happen if the loc param isn't in this range */
+ if (loc < 0x20 || loc >= 0x2F)
+ return -1;
+
+ if (ps2_command(ps2dev, NULL, MAKE_PS2_CMD(0, 0, TP_COMMAND)) ||
+ ps2_command(ps2dev, NULL, MAKE_PS2_CMD(0, 0, TP_TOGGLE)) ||
+ ps2_command(ps2dev, NULL, MAKE_PS2_CMD(0, 0, loc)) ||
+ ps2_command(ps2dev, NULL, MAKE_PS2_CMD(0, 0, mask))) {
+ return -1;
+ }
+
+ return 0;
+}
+
+
+/*
+ * Trackpoint-specific attributes
+ */
+struct trackpoint_attr_data {
+ size_t field_offset;
+ unsigned char command;
+ unsigned char mask;
+ unsigned char inverted;
+};
+
+static ssize_t trackpoint_show_int_attr(struct psmouse *psmouse, void *data, char *buf)
+{
+ struct trackpoint_data *tp = psmouse->private;
+ struct trackpoint_attr_data *attr = data;
+ unsigned char value = *(unsigned char *)((char *)tp + attr->field_offset);
+
+ if (attr->inverted)
+ value = !value;
+
+ return sprintf(buf, "%u\n", value);
+}
+
+static ssize_t trackpoint_set_int_attr(struct psmouse *psmouse, void *data,
+ const char *buf, size_t count)
+{
+ struct trackpoint_data *tp = psmouse->private;
+ struct trackpoint_attr_data *attr = data;
+ unsigned char *field = (unsigned char *)((char *)tp + attr->field_offset);
+ unsigned long value;
+
+ if (strict_strtoul(buf, 10, &value) || value > 255)
+ return -EINVAL;
+
+ *field = value;
+ trackpoint_write(&psmouse->ps2dev, attr->command, value);
+
+ return count;
+}
+
+#define TRACKPOINT_INT_ATTR(_name, _command) \
+ static struct trackpoint_attr_data trackpoint_attr_##_name = { \
+ .field_offset = offsetof(struct trackpoint_data, _name), \
+ .command = _command, \
+ }; \
+ PSMOUSE_DEFINE_ATTR(_name, S_IWUSR | S_IRUGO, \
+ &trackpoint_attr_##_name, \
+ trackpoint_show_int_attr, trackpoint_set_int_attr)
+
+static ssize_t trackpoint_set_bit_attr(struct psmouse *psmouse, void *data,
+ const char *buf, size_t count)
+{
+ struct trackpoint_data *tp = psmouse->private;
+ struct trackpoint_attr_data *attr = data;
+ unsigned char *field = (unsigned char *)((char *)tp + attr->field_offset);
+ unsigned long value;
+
+ if (strict_strtoul(buf, 10, &value) || value > 1)
+ return -EINVAL;
+
+ if (attr->inverted)
+ value = !value;
+
+ if (*field != value) {
+ *field = value;
+ trackpoint_toggle_bit(&psmouse->ps2dev, attr->command, attr->mask);
+ }
+
+ return count;
+}
+
+
+#define TRACKPOINT_BIT_ATTR(_name, _command, _mask, _inv) \
+ static struct trackpoint_attr_data trackpoint_attr_##_name = { \
+ .field_offset = offsetof(struct trackpoint_data, _name), \
+ .command = _command, \
+ .mask = _mask, \
+ .inverted = _inv, \
+ }; \
+ PSMOUSE_DEFINE_ATTR(_name, S_IWUSR | S_IRUGO, \
+ &trackpoint_attr_##_name, \
+ trackpoint_show_int_attr, trackpoint_set_bit_attr)
+
+TRACKPOINT_INT_ATTR(sensitivity, TP_SENS);
+TRACKPOINT_INT_ATTR(speed, TP_SPEED);
+TRACKPOINT_INT_ATTR(inertia, TP_INERTIA);
+TRACKPOINT_INT_ATTR(reach, TP_REACH);
+TRACKPOINT_INT_ATTR(draghys, TP_DRAGHYS);
+TRACKPOINT_INT_ATTR(mindrag, TP_MINDRAG);
+TRACKPOINT_INT_ATTR(thresh, TP_THRESH);
+TRACKPOINT_INT_ATTR(upthresh, TP_UP_THRESH);
+TRACKPOINT_INT_ATTR(ztime, TP_Z_TIME);
+TRACKPOINT_INT_ATTR(jenks, TP_JENKS_CURV);
+
+TRACKPOINT_BIT_ATTR(press_to_select, TP_TOGGLE_PTSON, TP_MASK_PTSON, 0);
+TRACKPOINT_BIT_ATTR(skipback, TP_TOGGLE_SKIPBACK, TP_MASK_SKIPBACK, 0);
+TRACKPOINT_BIT_ATTR(ext_dev, TP_TOGGLE_EXT_DEV, TP_MASK_EXT_DEV, 1);
+
+static struct attribute *trackpoint_attrs[] = {
+ &psmouse_attr_sensitivity.dattr.attr,
+ &psmouse_attr_speed.dattr.attr,
+ &psmouse_attr_inertia.dattr.attr,
+ &psmouse_attr_reach.dattr.attr,
+ &psmouse_attr_draghys.dattr.attr,
+ &psmouse_attr_mindrag.dattr.attr,
+ &psmouse_attr_thresh.dattr.attr,
+ &psmouse_attr_upthresh.dattr.attr,
+ &psmouse_attr_ztime.dattr.attr,
+ &psmouse_attr_jenks.dattr.attr,
+ &psmouse_attr_press_to_select.dattr.attr,
+ &psmouse_attr_skipback.dattr.attr,
+ &psmouse_attr_ext_dev.dattr.attr,
+ NULL
+};
+
+static struct attribute_group trackpoint_attr_group = {
+ .attrs = trackpoint_attrs,
+};
+
+static int trackpoint_start_protocol(struct psmouse *psmouse, unsigned char *firmware_id)
+{
+ unsigned char param[2] = { 0 };
+
+ if (ps2_command(&psmouse->ps2dev, param, MAKE_PS2_CMD(0, 2, TP_READ_ID)))
+ return -1;
+
+ if (param[0] != TP_MAGIC_IDENT)
+ return -1;
+
+ if (firmware_id)
+ *firmware_id = param[1];
+
+ return 0;
+}
+
+static int trackpoint_sync(struct psmouse *psmouse)
+{
+ struct trackpoint_data *tp = psmouse->private;
+ unsigned char toggle;
+
+ /* Disable features that may make device unusable with this driver */
+ trackpoint_read(&psmouse->ps2dev, TP_TOGGLE_TWOHAND, &toggle);
+ if (toggle & TP_MASK_TWOHAND)
+ trackpoint_toggle_bit(&psmouse->ps2dev, TP_TOGGLE_TWOHAND, TP_MASK_TWOHAND);
+
+ trackpoint_read(&psmouse->ps2dev, TP_TOGGLE_SOURCE_TAG, &toggle);
+ if (toggle & TP_MASK_SOURCE_TAG)
+ trackpoint_toggle_bit(&psmouse->ps2dev, TP_TOGGLE_SOURCE_TAG, TP_MASK_SOURCE_TAG);
+
+ trackpoint_read(&psmouse->ps2dev, TP_TOGGLE_MB, &toggle);
+ if (toggle & TP_MASK_MB)
+ trackpoint_toggle_bit(&psmouse->ps2dev, TP_TOGGLE_MB, TP_MASK_MB);
+
+ /* Push the config to the device */
+ trackpoint_write(&psmouse->ps2dev, TP_SENS, tp->sensitivity);
+ trackpoint_write(&psmouse->ps2dev, TP_INERTIA, tp->inertia);
+ trackpoint_write(&psmouse->ps2dev, TP_SPEED, tp->speed);
+
+ trackpoint_write(&psmouse->ps2dev, TP_REACH, tp->reach);
+ trackpoint_write(&psmouse->ps2dev, TP_DRAGHYS, tp->draghys);
+ trackpoint_write(&psmouse->ps2dev, TP_MINDRAG, tp->mindrag);
+
+ trackpoint_write(&psmouse->ps2dev, TP_THRESH, tp->thresh);
+ trackpoint_write(&psmouse->ps2dev, TP_UP_THRESH, tp->upthresh);
+
+ trackpoint_write(&psmouse->ps2dev, TP_Z_TIME, tp->ztime);
+ trackpoint_write(&psmouse->ps2dev, TP_JENKS_CURV, tp->jenks);
+
+ trackpoint_read(&psmouse->ps2dev, TP_TOGGLE_PTSON, &toggle);
+ if (((toggle & TP_MASK_PTSON) == TP_MASK_PTSON) != tp->press_to_select)
+ trackpoint_toggle_bit(&psmouse->ps2dev, TP_TOGGLE_PTSON, TP_MASK_PTSON);
+
+ trackpoint_read(&psmouse->ps2dev, TP_TOGGLE_SKIPBACK, &toggle);
+ if (((toggle & TP_MASK_SKIPBACK) == TP_MASK_SKIPBACK) != tp->skipback)
+ trackpoint_toggle_bit(&psmouse->ps2dev, TP_TOGGLE_SKIPBACK, TP_MASK_SKIPBACK);
+
+ trackpoint_read(&psmouse->ps2dev, TP_TOGGLE_EXT_DEV, &toggle);
+ if (((toggle & TP_MASK_EXT_DEV) == TP_MASK_EXT_DEV) != tp->ext_dev)
+ trackpoint_toggle_bit(&psmouse->ps2dev, TP_TOGGLE_EXT_DEV, TP_MASK_EXT_DEV);
+
+ return 0;
+}
+
+static void trackpoint_defaults(struct trackpoint_data *tp)
+{
+ tp->press_to_select = TP_DEF_PTSON;
+ tp->sensitivity = TP_DEF_SENS;
+ tp->speed = TP_DEF_SPEED;
+ tp->reach = TP_DEF_REACH;
+
+ tp->draghys = TP_DEF_DRAGHYS;
+ tp->mindrag = TP_DEF_MINDRAG;
+
+ tp->thresh = TP_DEF_THRESH;
+ tp->upthresh = TP_DEF_UP_THRESH;
+
+ tp->ztime = TP_DEF_Z_TIME;
+ tp->jenks = TP_DEF_JENKS_CURV;
+
+ tp->inertia = TP_DEF_INERTIA;
+ tp->skipback = TP_DEF_SKIPBACK;
+ tp->ext_dev = TP_DEF_EXT_DEV;
+}
+
+static void trackpoint_disconnect(struct psmouse *psmouse)
+{
+ sysfs_remove_group(&psmouse->ps2dev.serio->dev.kobj, &trackpoint_attr_group);
+
+ kfree(psmouse->private);
+ psmouse->private = NULL;
+}
+
+static int trackpoint_reconnect(struct psmouse *psmouse)
+{
+ if (trackpoint_start_protocol(psmouse, NULL))
+ return -1;
+
+ if (trackpoint_sync(psmouse))
+ return -1;
+
+ return 0;
+}
+
+int trackpoint_detect(struct psmouse *psmouse, bool set_properties)
+{
+ struct ps2dev *ps2dev = &psmouse->ps2dev;
+ unsigned char firmware_id;
+ unsigned char button_info;
+ int error;
+
+ if (trackpoint_start_protocol(psmouse, &firmware_id))
+ return -1;
+
+ if (!set_properties)
+ return 0;
+
+ if (trackpoint_read(&psmouse->ps2dev, TP_EXT_BTN, &button_info)) {
+ printk(KERN_WARNING "trackpoint.c: failed to get extended button data\n");
+ button_info = 0;
+ }
+
+ psmouse->private = kzalloc(sizeof(struct trackpoint_data), GFP_KERNEL);
+ if (!psmouse->private)
+ return -ENOMEM;
+
+ psmouse->vendor = "IBM";
+ psmouse->name = "TrackPoint";
+
+ psmouse->reconnect = trackpoint_reconnect;
+ psmouse->disconnect = trackpoint_disconnect;
+
+ if ((button_info & 0x0f) >= 3)
+ __set_bit(BTN_MIDDLE, psmouse->dev->keybit);
+
+ trackpoint_defaults(psmouse->private);
+ trackpoint_sync(psmouse);
+
+ error = sysfs_create_group(&ps2dev->serio->dev.kobj, &trackpoint_attr_group);
+ if (error) {
+ printk(KERN_ERR
+ "trackpoint.c: failed to create sysfs attributes, error: %d\n",
+ error);
+ kfree(psmouse->private);
+ psmouse->private = NULL;
+ return -1;
+ }
+
+ printk(KERN_INFO "IBM TrackPoint firmware: 0x%02x, buttons: %d/%d\n",
+ firmware_id, (button_info & 0xf0) >> 4, button_info & 0x0f);
+
+ return 0;
+}
+
diff --git a/drivers/input/mouse/trackpoint.h b/drivers/input/mouse/trackpoint.h
new file mode 100644
index 0000000..e558a70
--- /dev/null
+++ b/drivers/input/mouse/trackpoint.h
@@ -0,0 +1,154 @@
+/*
+ * IBM TrackPoint PS/2 mouse driver
+ *
+ * Stephen Evanchik <evanchsa@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ */
+
+#ifndef _TRACKPOINT_H
+#define _TRACKPOINT_H
+
+/*
+ * These constants are from the TrackPoint System
+ * Engineering documentation Version 4 from IBM Watson
+ * research:
+ * http://wwwcssrv.almaden.ibm.com/trackpoint/download.html
+ */
+
+#define TP_COMMAND 0xE2 /* Commands start with this */
+
+#define TP_READ_ID 0xE1 /* Sent for device identification */
+#define TP_MAGIC_IDENT 0x01 /* Sent after a TP_READ_ID followed */
+ /* by the firmware ID */
+
+
+/*
+ * Commands
+ */
+#define TP_RECALIB 0x51 /* Recalibrate */
+#define TP_POWER_DOWN 0x44 /* Can only be undone through HW reset */
+#define TP_EXT_DEV 0x21 /* Determines if external device is connected (RO) */
+#define TP_EXT_BTN 0x4B /* Read extended button status */
+#define TP_POR 0x7F /* Execute Power on Reset */
+#define TP_POR_RESULTS 0x25 /* Read Power on Self test results */
+#define TP_DISABLE_EXT 0x40 /* Disable external pointing device */
+#define TP_ENABLE_EXT 0x41 /* Enable external pointing device */
+
+/*
+ * Mode manipulation
+ */
+#define TP_SET_SOFT_TRANS 0x4E /* Set mode */
+#define TP_CANCEL_SOFT_TRANS 0xB9 /* Cancel mode */
+#define TP_SET_HARD_TRANS 0x45 /* Mode can only be set */
+
+
+/*
+ * Register oriented commands/properties
+ */
+#define TP_WRITE_MEM 0x81
+#define TP_READ_MEM 0x80 /* Not used in this implementation */
+
+/*
+* RAM Locations for properties
+ */
+#define TP_SENS 0x4A /* Sensitivity */
+#define TP_MB 0x4C /* Read Middle Button Status (RO) */
+#define TP_INERTIA 0x4D /* Negative Inertia */
+#define TP_SPEED 0x60 /* Speed of TP Cursor */
+#define TP_REACH 0x57 /* Backup for Z-axis press */
+#define TP_DRAGHYS 0x58 /* Drag Hysteresis */
+ /* (how hard it is to drag */
+ /* with Z-axis pressed) */
+
+#define TP_MINDRAG 0x59 /* Minimum amount of force needed */
+ /* to trigger dragging */
+
+#define TP_THRESH 0x5C /* Minimum value for a Z-axis press */
+#define TP_UP_THRESH 0x5A /* Used to generate a 'click' on Z-axis */
+#define TP_Z_TIME 0x5E /* How sharp of a press */
+#define TP_JENKS_CURV 0x5D /* Minimum curvature for double click */
+
+/*
+ * Toggling Flag bits
+ */
+#define TP_TOGGLE 0x47 /* Toggle command */
+
+#define TP_TOGGLE_MB 0x23 /* Disable/Enable Middle Button */
+#define TP_MASK_MB 0x01
+#define TP_TOGGLE_EXT_DEV 0x23 /* Disable external device */
+#define TP_MASK_EXT_DEV 0x02
+#define TP_TOGGLE_DRIFT 0x23 /* Drift Correction */
+#define TP_MASK_DRIFT 0x80
+#define TP_TOGGLE_BURST 0x28 /* Burst Mode */
+#define TP_MASK_BURST 0x80
+#define TP_TOGGLE_PTSON 0x2C /* Press to Select */
+#define TP_MASK_PTSON 0x01
+#define TP_TOGGLE_HARD_TRANS 0x2C /* Alternate method to set Hard Transparency */
+#define TP_MASK_HARD_TRANS 0x80
+#define TP_TOGGLE_TWOHAND 0x2D /* Two handed */
+#define TP_MASK_TWOHAND 0x01
+#define TP_TOGGLE_STICKY_TWO 0x2D /* Sticky two handed */
+#define TP_MASK_STICKY_TWO 0x04
+#define TP_TOGGLE_SKIPBACK 0x2D /* Suppress movement after drag release */
+#define TP_MASK_SKIPBACK 0x08
+#define TP_TOGGLE_SOURCE_TAG 0x20 /* Bit 3 of the first packet will be set to
+ to the origin of the packet (external or TP) */
+#define TP_MASK_SOURCE_TAG 0x80
+#define TP_TOGGLE_EXT_TAG 0x22 /* Bit 3 of the first packet coming from the
+ external device will be forced to 1 */
+#define TP_MASK_EXT_TAG 0x04
+
+
+/* Power on Self Test Results */
+#define TP_POR_SUCCESS 0x3B
+
+/*
+ * Default power on values
+ */
+#define TP_DEF_SENS 0x80
+#define TP_DEF_INERTIA 0x06
+#define TP_DEF_SPEED 0x61
+#define TP_DEF_REACH 0x0A
+
+#define TP_DEF_DRAGHYS 0xFF
+#define TP_DEF_MINDRAG 0x14
+
+#define TP_DEF_THRESH 0x08
+#define TP_DEF_UP_THRESH 0xFF
+#define TP_DEF_Z_TIME 0x26
+#define TP_DEF_JENKS_CURV 0x87
+
+/* Toggles */
+#define TP_DEF_MB 0x00
+#define TP_DEF_PTSON 0x00
+#define TP_DEF_SKIPBACK 0x00
+#define TP_DEF_EXT_DEV 0x00 /* 0 means enabled */
+
+#define MAKE_PS2_CMD(params, results, cmd) ((params<<12) | (results<<8) | (cmd))
+
+struct trackpoint_data
+{
+ unsigned char sensitivity, speed, inertia, reach;
+ unsigned char draghys, mindrag;
+ unsigned char thresh, upthresh;
+ unsigned char ztime, jenks;
+
+ unsigned char press_to_select;
+ unsigned char skipback;
+
+ unsigned char ext_dev;
+};
+
+#ifdef CONFIG_MOUSE_PS2_TRACKPOINT
+int trackpoint_detect(struct psmouse *psmouse, bool set_properties);
+#else
+inline int trackpoint_detect(struct psmouse *psmouse, bool set_properties)
+{
+ return -ENOSYS;
+}
+#endif /* CONFIG_MOUSE_PS2_TRACKPOINT */
+
+#endif /* _TRACKPOINT_H */
diff --git a/drivers/input/mouse/vsxxxaa.c b/drivers/input/mouse/vsxxxaa.c
new file mode 100644
index 0000000..eb9a3cf
--- /dev/null
+++ b/drivers/input/mouse/vsxxxaa.c
@@ -0,0 +1,563 @@
+/*
+ * Driver for DEC VSXXX-AA mouse (hockey-puck mouse, ball or two rollers)
+ * DEC VSXXX-GA mouse (rectangular mouse, with ball)
+ * DEC VSXXX-AB tablet (digitizer with hair cross or stylus)
+ *
+ * Copyright (C) 2003-2004 by Jan-Benedict Glaw <jbglaw@lug-owl.de>
+ *
+ * The packet format was initially taken from a patch to GPM which is (C) 2001
+ * by Karsten Merker <merker@linuxtag.org>
+ * and Maciej W. Rozycki <macro@ds2.pg.gda.pl>
+ * Later on, I had access to the device's documentation (referenced below).
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+/*
+ * Building an adaptor to DE9 / DB25 RS232
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ *
+ * DISCLAIMER: Use this description AT YOUR OWN RISK! I'll not pay for
+ * anything if you break your mouse, your computer or whatever!
+ *
+ * In theory, this mouse is a simple RS232 device. In practice, it has got
+ * a quite uncommon plug and the requirement to additionally get a power
+ * supply at +5V and -12V.
+ *
+ * If you look at the socket/jack (_not_ at the plug), we use this pin
+ * numbering:
+ * _______
+ * / 7 6 5 \
+ * | 4 --- 3 |
+ * \ 2 1 /
+ * -------
+ *
+ * DEC socket DE9 DB25 Note
+ * 1 (GND) 5 7 -
+ * 2 (RxD) 2 3 -
+ * 3 (TxD) 3 2 -
+ * 4 (-12V) - - Somewhere from the PSU. At ATX, it's
+ * the thin blue wire at pin 12 of the
+ * ATX power connector. Only required for
+ * VSXXX-AA/-GA mice.
+ * 5 (+5V) - - PSU (red wires of ATX power connector
+ * on pin 4, 6, 19 or 20) or HDD power
+ * connector (also red wire).
+ * 6 (+12V) - - HDD power connector, yellow wire. Only
+ * required for VSXXX-AB digitizer.
+ * 7 (dev. avail.) - - The mouse shorts this one to pin 1.
+ * This way, the host computer can detect
+ * the mouse. To use it with the adaptor,
+ * simply don't connect this pin.
+ *
+ * So to get a working adaptor, you need to connect the mouse with three
+ * wires to a RS232 port and two or three additional wires for +5V, +12V and
+ * -12V to the PSU.
+ *
+ * Flow specification for the link is 4800, 8o1.
+ *
+ * The mice and tablet are described in "VCB02 Video Subsystem - Technical
+ * Manual", DEC EK-104AA-TM-001. You'll find it at MANX, a search engine
+ * specific for DEC documentation. Try
+ * http://www.vt100.net/manx/details?pn=EK-104AA-TM-001;id=21;cp=1
+ */
+
+#include <linux/delay.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/interrupt.h>
+#include <linux/input.h>
+#include <linux/serio.h>
+#include <linux/init.h>
+
+#define DRIVER_DESC "Driver for DEC VSXXX-AA and -GA mice and VSXXX-AB tablet"
+
+MODULE_AUTHOR("Jan-Benedict Glaw <jbglaw@lug-owl.de>");
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+#undef VSXXXAA_DEBUG
+#ifdef VSXXXAA_DEBUG
+#define DBG(x...) printk(x)
+#else
+#define DBG(x...) do {} while (0)
+#endif
+
+#define VSXXXAA_INTRO_MASK 0x80
+#define VSXXXAA_INTRO_HEAD 0x80
+#define IS_HDR_BYTE(x) \
+ (((x) & VSXXXAA_INTRO_MASK) == VSXXXAA_INTRO_HEAD)
+
+#define VSXXXAA_PACKET_MASK 0xe0
+#define VSXXXAA_PACKET_REL 0x80
+#define VSXXXAA_PACKET_ABS 0xc0
+#define VSXXXAA_PACKET_POR 0xa0
+#define MATCH_PACKET_TYPE(data, type) \
+ (((data) & VSXXXAA_PACKET_MASK) == (type))
+
+
+
+struct vsxxxaa {
+ struct input_dev *dev;
+ struct serio *serio;
+#define BUFLEN 15 /* At least 5 is needed for a full tablet packet */
+ unsigned char buf[BUFLEN];
+ unsigned char count;
+ unsigned char version;
+ unsigned char country;
+ unsigned char type;
+ char name[64];
+ char phys[32];
+};
+
+static void vsxxxaa_drop_bytes(struct vsxxxaa *mouse, int num)
+{
+ if (num >= mouse->count) {
+ mouse->count = 0;
+ } else {
+ memmove(mouse->buf, mouse->buf + num - 1, BUFLEN - num);
+ mouse->count -= num;
+ }
+}
+
+static void vsxxxaa_queue_byte(struct vsxxxaa *mouse, unsigned char byte)
+{
+ if (mouse->count == BUFLEN) {
+ printk(KERN_ERR "%s on %s: Dropping a byte of full buffer.\n",
+ mouse->name, mouse->phys);
+ vsxxxaa_drop_bytes(mouse, 1);
+ }
+
+ DBG(KERN_INFO "Queueing byte 0x%02x\n", byte);
+
+ mouse->buf[mouse->count++] = byte;
+}
+
+static void vsxxxaa_detection_done(struct vsxxxaa *mouse)
+{
+ switch (mouse->type) {
+ case 0x02:
+ strlcpy(mouse->name, "DEC VSXXX-AA/-GA mouse",
+ sizeof(mouse->name));
+ break;
+
+ case 0x04:
+ strlcpy(mouse->name, "DEC VSXXX-AB digitizer",
+ sizeof(mouse->name));
+ break;
+
+ default:
+ snprintf(mouse->name, sizeof(mouse->name),
+ "unknown DEC pointer device (type = 0x%02x)",
+ mouse->type);
+ break;
+ }
+
+ printk(KERN_INFO
+ "Found %s version 0x%02x from country 0x%02x on port %s\n",
+ mouse->name, mouse->version, mouse->country, mouse->phys);
+}
+
+/*
+ * Returns number of bytes to be dropped, 0 if packet is okay.
+ */
+static int vsxxxaa_check_packet(struct vsxxxaa *mouse, int packet_len)
+{
+ int i;
+
+ /* First byte must be a header byte */
+ if (!IS_HDR_BYTE(mouse->buf[0])) {
+ DBG("vsck: len=%d, 1st=0x%02x\n", packet_len, mouse->buf[0]);
+ return 1;
+ }
+
+ /* Check all following bytes */
+ for (i = 1; i < packet_len; i++) {
+ if (IS_HDR_BYTE(mouse->buf[i])) {
+ printk(KERN_ERR
+ "Need to drop %d bytes of a broken packet.\n",
+ i - 1);
+ DBG(KERN_INFO "check: len=%d, b[%d]=0x%02x\n",
+ packet_len, i, mouse->buf[i]);
+ return i - 1;
+ }
+ }
+
+ return 0;
+}
+
+static inline int vsxxxaa_smells_like_packet(struct vsxxxaa *mouse,
+ unsigned char type, size_t len)
+{
+ return mouse->count >= len && MATCH_PACKET_TYPE(mouse->buf[0], type);
+}
+
+static void vsxxxaa_handle_REL_packet(struct vsxxxaa *mouse)
+{
+ struct input_dev *dev = mouse->dev;
+ unsigned char *buf = mouse->buf;
+ int left, middle, right;
+ int dx, dy;
+
+ /*
+ * Check for normal stream packets. This is three bytes,
+ * with the first byte's 3 MSB set to 100.
+ *
+ * [0]: 1 0 0 SignX SignY Left Middle Right
+ * [1]: 0 dx dx dx dx dx dx dx
+ * [2]: 0 dy dy dy dy dy dy dy
+ */
+
+ /*
+ * Low 7 bit of byte 1 are abs(dx), bit 7 is
+ * 0, bit 4 of byte 0 is direction.
+ */
+ dx = buf[1] & 0x7f;
+ dx *= ((buf[0] >> 4) & 0x01) ? 1 : -1;
+
+ /*
+ * Low 7 bit of byte 2 are abs(dy), bit 7 is
+ * 0, bit 3 of byte 0 is direction.
+ */
+ dy = buf[2] & 0x7f;
+ dy *= ((buf[0] >> 3) & 0x01) ? -1 : 1;
+
+ /*
+ * Get button state. It's the low three bits
+ * (for three buttons) of byte 0.
+ */
+ left = buf[0] & 0x04;
+ middle = buf[0] & 0x02;
+ right = buf[0] & 0x01;
+
+ vsxxxaa_drop_bytes(mouse, 3);
+
+ DBG(KERN_INFO "%s on %s: dx=%d, dy=%d, buttons=%s%s%s\n",
+ mouse->name, mouse->phys, dx, dy,
+ left ? "L" : "l", middle ? "M" : "m", right ? "R" : "r");
+
+ /*
+ * Report what we've found so far...
+ */
+ input_report_key(dev, BTN_LEFT, left);
+ input_report_key(dev, BTN_MIDDLE, middle);
+ input_report_key(dev, BTN_RIGHT, right);
+ input_report_key(dev, BTN_TOUCH, 0);
+ input_report_rel(dev, REL_X, dx);
+ input_report_rel(dev, REL_Y, dy);
+ input_sync(dev);
+}
+
+static void vsxxxaa_handle_ABS_packet(struct vsxxxaa *mouse)
+{
+ struct input_dev *dev = mouse->dev;
+ unsigned char *buf = mouse->buf;
+ int left, middle, right, touch;
+ int x, y;
+
+ /*
+ * Tablet position / button packet
+ *
+ * [0]: 1 1 0 B4 B3 B2 B1 Pr
+ * [1]: 0 0 X5 X4 X3 X2 X1 X0
+ * [2]: 0 0 X11 X10 X9 X8 X7 X6
+ * [3]: 0 0 Y5 Y4 Y3 Y2 Y1 Y0
+ * [4]: 0 0 Y11 Y10 Y9 Y8 Y7 Y6
+ */
+
+ /*
+ * Get X/Y position. Y axis needs to be inverted since VSXXX-AB
+ * counts down->top while monitor counts top->bottom.
+ */
+ x = ((buf[2] & 0x3f) << 6) | (buf[1] & 0x3f);
+ y = ((buf[4] & 0x3f) << 6) | (buf[3] & 0x3f);
+ y = 1023 - y;
+
+ /*
+ * Get button state. It's bits <4..1> of byte 0.
+ */
+ left = buf[0] & 0x02;
+ middle = buf[0] & 0x04;
+ right = buf[0] & 0x08;
+ touch = buf[0] & 0x10;
+
+ vsxxxaa_drop_bytes(mouse, 5);
+
+ DBG(KERN_INFO "%s on %s: x=%d, y=%d, buttons=%s%s%s%s\n",
+ mouse->name, mouse->phys, x, y,
+ left ? "L" : "l", middle ? "M" : "m",
+ right ? "R" : "r", touch ? "T" : "t");
+
+ /*
+ * Report what we've found so far...
+ */
+ input_report_key(dev, BTN_LEFT, left);
+ input_report_key(dev, BTN_MIDDLE, middle);
+ input_report_key(dev, BTN_RIGHT, right);
+ input_report_key(dev, BTN_TOUCH, touch);
+ input_report_abs(dev, ABS_X, x);
+ input_report_abs(dev, ABS_Y, y);
+ input_sync(dev);
+}
+
+static void vsxxxaa_handle_POR_packet(struct vsxxxaa *mouse)
+{
+ struct input_dev *dev = mouse->dev;
+ unsigned char *buf = mouse->buf;
+ int left, middle, right;
+ unsigned char error;
+
+ /*
+ * Check for Power-On-Reset packets. These are sent out
+ * after plugging the mouse in, or when explicitly
+ * requested by sending 'T'.
+ *
+ * [0]: 1 0 1 0 R3 R2 R1 R0
+ * [1]: 0 M2 M1 M0 D3 D2 D1 D0
+ * [2]: 0 E6 E5 E4 E3 E2 E1 E0
+ * [3]: 0 0 0 0 0 Left Middle Right
+ *
+ * M: manufacturer location code
+ * R: revision code
+ * E: Error code. If it's in the range of 0x00..0x1f, only some
+ * minor problem occurred. Errors >= 0x20 are considered bad
+ * and the device may not work properly...
+ * D: <0010> == mouse, <0100> == tablet
+ */
+
+ mouse->version = buf[0] & 0x0f;
+ mouse->country = (buf[1] >> 4) & 0x07;
+ mouse->type = buf[1] & 0x0f;
+ error = buf[2] & 0x7f;
+
+ /*
+ * Get button state. It's the low three bits
+ * (for three buttons) of byte 0. Maybe even the bit <3>
+ * has some meaning if a tablet is attached.
+ */
+ left = buf[0] & 0x04;
+ middle = buf[0] & 0x02;
+ right = buf[0] & 0x01;
+
+ vsxxxaa_drop_bytes(mouse, 4);
+ vsxxxaa_detection_done(mouse);
+
+ if (error <= 0x1f) {
+ /* No (serious) error. Report buttons */
+ input_report_key(dev, BTN_LEFT, left);
+ input_report_key(dev, BTN_MIDDLE, middle);
+ input_report_key(dev, BTN_RIGHT, right);
+ input_report_key(dev, BTN_TOUCH, 0);
+ input_sync(dev);
+
+ if (error != 0)
+ printk(KERN_INFO "Your %s on %s reports error=0x%02x\n",
+ mouse->name, mouse->phys, error);
+
+ }
+
+ /*
+ * If the mouse was hot-plugged, we need to force differential mode
+ * now... However, give it a second to recover from it's reset.
+ */
+ printk(KERN_NOTICE
+ "%s on %s: Forcing standard packet format, "
+ "incremental streaming mode and 72 samples/sec\n",
+ mouse->name, mouse->phys);
+ serio_write(mouse->serio, 'S'); /* Standard format */
+ mdelay(50);
+ serio_write(mouse->serio, 'R'); /* Incremental */
+ mdelay(50);
+ serio_write(mouse->serio, 'L'); /* 72 samples/sec */
+}
+
+static void vsxxxaa_parse_buffer(struct vsxxxaa *mouse)
+{
+ unsigned char *buf = mouse->buf;
+ int stray_bytes;
+
+ /*
+ * Parse buffer to death...
+ */
+ do {
+ /*
+ * Out of sync? Throw away what we don't understand. Each
+ * packet starts with a byte whose bit 7 is set. Unhandled
+ * packets (ie. which we don't know about or simply b0rk3d
+ * data...) will get shifted out of the buffer after some
+ * activity on the mouse.
+ */
+ while (mouse->count > 0 && !IS_HDR_BYTE(buf[0])) {
+ printk(KERN_ERR "%s on %s: Dropping a byte to regain "
+ "sync with mouse data stream...\n",
+ mouse->name, mouse->phys);
+ vsxxxaa_drop_bytes(mouse, 1);
+ }
+
+ /*
+ * Check for packets we know about.
+ */
+
+ if (vsxxxaa_smells_like_packet(mouse, VSXXXAA_PACKET_REL, 3)) {
+ /* Check for broken packet */
+ stray_bytes = vsxxxaa_check_packet(mouse, 3);
+ if (!stray_bytes)
+ vsxxxaa_handle_REL_packet(mouse);
+
+ } else if (vsxxxaa_smells_like_packet(mouse,
+ VSXXXAA_PACKET_ABS, 5)) {
+ /* Check for broken packet */
+ stray_bytes = vsxxxaa_check_packet(mouse, 5);
+ if (!stray_bytes)
+ vsxxxaa_handle_ABS_packet(mouse);
+
+ } else if (vsxxxaa_smells_like_packet(mouse,
+ VSXXXAA_PACKET_POR, 4)) {
+ /* Check for broken packet */
+ stray_bytes = vsxxxaa_check_packet(mouse, 4);
+ if (!stray_bytes)
+ vsxxxaa_handle_POR_packet(mouse);
+
+ } else {
+ break; /* No REL, ABS or POR packet found */
+ }
+
+ if (stray_bytes > 0) {
+ printk(KERN_ERR "Dropping %d bytes now...\n",
+ stray_bytes);
+ vsxxxaa_drop_bytes(mouse, stray_bytes);
+ }
+
+ } while (1);
+}
+
+static irqreturn_t vsxxxaa_interrupt(struct serio *serio,
+ unsigned char data, unsigned int flags)
+{
+ struct vsxxxaa *mouse = serio_get_drvdata(serio);
+
+ vsxxxaa_queue_byte(mouse, data);
+ vsxxxaa_parse_buffer(mouse);
+
+ return IRQ_HANDLED;
+}
+
+static void vsxxxaa_disconnect(struct serio *serio)
+{
+ struct vsxxxaa *mouse = serio_get_drvdata(serio);
+
+ serio_close(serio);
+ serio_set_drvdata(serio, NULL);
+ input_unregister_device(mouse->dev);
+ kfree(mouse);
+}
+
+static int vsxxxaa_connect(struct serio *serio, struct serio_driver *drv)
+{
+ struct vsxxxaa *mouse;
+ struct input_dev *input_dev;
+ int err = -ENOMEM;
+
+ mouse = kzalloc(sizeof(struct vsxxxaa), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!mouse || !input_dev)
+ goto fail1;
+
+ mouse->dev = input_dev;
+ mouse->serio = serio;
+ strlcat(mouse->name, "DEC VSXXX-AA/-GA mouse or VSXXX-AB digitizer",
+ sizeof(mouse->name));
+ snprintf(mouse->phys, sizeof(mouse->phys), "%s/input0", serio->phys);
+
+ input_dev->name = mouse->name;
+ input_dev->phys = mouse->phys;
+ input_dev->id.bustype = BUS_RS232;
+ input_dev->dev.parent = &serio->dev;
+
+ __set_bit(EV_KEY, input_dev->evbit); /* We have buttons */
+ __set_bit(EV_REL, input_dev->evbit);
+ __set_bit(EV_ABS, input_dev->evbit);
+ __set_bit(BTN_LEFT, input_dev->keybit); /* We have 3 buttons */
+ __set_bit(BTN_MIDDLE, input_dev->keybit);
+ __set_bit(BTN_RIGHT, input_dev->keybit);
+ __set_bit(BTN_TOUCH, input_dev->keybit); /* ...and Tablet */
+ __set_bit(REL_X, input_dev->relbit);
+ __set_bit(REL_Y, input_dev->relbit);
+ input_set_abs_params(input_dev, ABS_X, 0, 1023, 0, 0);
+ input_set_abs_params(input_dev, ABS_Y, 0, 1023, 0, 0);
+
+ serio_set_drvdata(serio, mouse);
+
+ err = serio_open(serio, drv);
+ if (err)
+ goto fail2;
+
+ /*
+ * Request selftest. Standard packet format and differential
+ * mode will be requested after the device ID'ed successfully.
+ */
+ serio_write(serio, 'T'); /* Test */
+
+ err = input_register_device(input_dev);
+ if (err)
+ goto fail3;
+
+ return 0;
+
+ fail3: serio_close(serio);
+ fail2: serio_set_drvdata(serio, NULL);
+ fail1: input_free_device(input_dev);
+ kfree(mouse);
+ return err;
+}
+
+static struct serio_device_id vsxxaa_serio_ids[] = {
+ {
+ .type = SERIO_RS232,
+ .proto = SERIO_VSXXXAA,
+ .id = SERIO_ANY,
+ .extra = SERIO_ANY,
+ },
+ { 0 }
+};
+
+MODULE_DEVICE_TABLE(serio, vsxxaa_serio_ids);
+
+static struct serio_driver vsxxxaa_drv = {
+ .driver = {
+ .name = "vsxxxaa",
+ },
+ .description = DRIVER_DESC,
+ .id_table = vsxxaa_serio_ids,
+ .connect = vsxxxaa_connect,
+ .interrupt = vsxxxaa_interrupt,
+ .disconnect = vsxxxaa_disconnect,
+};
+
+static int __init vsxxxaa_init(void)
+{
+ return serio_register_driver(&vsxxxaa_drv);
+}
+
+static void __exit vsxxxaa_exit(void)
+{
+ serio_unregister_driver(&vsxxxaa_drv);
+}
+
+module_init(vsxxxaa_init);
+module_exit(vsxxxaa_exit);
+
diff --git a/drivers/input/mousedev.c b/drivers/input/mousedev.c
new file mode 100644
index 0000000..0110b5a
--- /dev/null
+++ b/drivers/input/mousedev.c
@@ -0,0 +1,1113 @@
+/*
+ * Input driver to ExplorerPS/2 device driver module.
+ *
+ * Copyright (c) 1999-2002 Vojtech Pavlik
+ * Copyright (c) 2004 Dmitry Torokhov
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#define MOUSEDEV_MINOR_BASE 32
+#define MOUSEDEV_MINORS 32
+#define MOUSEDEV_MIX 31
+
+#include <linux/sched.h>
+#include <linux/slab.h>
+#include <linux/poll.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/input.h>
+#include <linux/random.h>
+#include <linux/major.h>
+#include <linux/device.h>
+#include <linux/kernel.h>
+#ifdef CONFIG_INPUT_MOUSEDEV_PSAUX
+#include <linux/miscdevice.h>
+#endif
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
+MODULE_DESCRIPTION("Mouse (ExplorerPS/2) device interfaces");
+MODULE_LICENSE("GPL");
+
+#ifndef CONFIG_INPUT_MOUSEDEV_SCREEN_X
+#define CONFIG_INPUT_MOUSEDEV_SCREEN_X 1024
+#endif
+#ifndef CONFIG_INPUT_MOUSEDEV_SCREEN_Y
+#define CONFIG_INPUT_MOUSEDEV_SCREEN_Y 768
+#endif
+
+static int xres = CONFIG_INPUT_MOUSEDEV_SCREEN_X;
+module_param(xres, uint, 0644);
+MODULE_PARM_DESC(xres, "Horizontal screen resolution");
+
+static int yres = CONFIG_INPUT_MOUSEDEV_SCREEN_Y;
+module_param(yres, uint, 0644);
+MODULE_PARM_DESC(yres, "Vertical screen resolution");
+
+static unsigned tap_time = 200;
+module_param(tap_time, uint, 0644);
+MODULE_PARM_DESC(tap_time, "Tap time for touchpads in absolute mode (msecs)");
+
+struct mousedev_hw_data {
+ int dx, dy, dz;
+ int x, y;
+ int abs_event;
+ unsigned long buttons;
+};
+
+struct mousedev {
+ int open;
+ int minor;
+ struct input_handle handle;
+ wait_queue_head_t wait;
+ struct list_head client_list;
+ spinlock_t client_lock; /* protects client_list */
+ struct mutex mutex;
+ struct device dev;
+ bool exist;
+
+ struct list_head mixdev_node;
+ int mixdev_open;
+
+ struct mousedev_hw_data packet;
+ unsigned int pkt_count;
+ int old_x[4], old_y[4];
+ int frac_dx, frac_dy;
+ unsigned long touch;
+};
+
+enum mousedev_emul {
+ MOUSEDEV_EMUL_PS2,
+ MOUSEDEV_EMUL_IMPS,
+ MOUSEDEV_EMUL_EXPS
+};
+
+struct mousedev_motion {
+ int dx, dy, dz;
+ unsigned long buttons;
+};
+
+#define PACKET_QUEUE_LEN 16
+struct mousedev_client {
+ struct fasync_struct *fasync;
+ struct mousedev *mousedev;
+ struct list_head node;
+
+ struct mousedev_motion packets[PACKET_QUEUE_LEN];
+ unsigned int head, tail;
+ spinlock_t packet_lock;
+ int pos_x, pos_y;
+
+ signed char ps2[6];
+ unsigned char ready, buffer, bufsiz;
+ unsigned char imexseq, impsseq;
+ enum mousedev_emul mode;
+ unsigned long last_buttons;
+};
+
+#define MOUSEDEV_SEQ_LEN 6
+
+static unsigned char mousedev_imps_seq[] = { 0xf3, 200, 0xf3, 100, 0xf3, 80 };
+static unsigned char mousedev_imex_seq[] = { 0xf3, 200, 0xf3, 200, 0xf3, 80 };
+
+static struct input_handler mousedev_handler;
+
+static struct mousedev *mousedev_table[MOUSEDEV_MINORS];
+static DEFINE_MUTEX(mousedev_table_mutex);
+static struct mousedev *mousedev_mix;
+static LIST_HEAD(mousedev_mix_list);
+
+static void mixdev_open_devices(void);
+static void mixdev_close_devices(void);
+
+#define fx(i) (mousedev->old_x[(mousedev->pkt_count - (i)) & 03])
+#define fy(i) (mousedev->old_y[(mousedev->pkt_count - (i)) & 03])
+
+static void mousedev_touchpad_event(struct input_dev *dev,
+ struct mousedev *mousedev,
+ unsigned int code, int value)
+{
+ int size, tmp;
+ enum { FRACTION_DENOM = 128 };
+
+ switch (code) {
+
+ case ABS_X:
+
+ fx(0) = value;
+ if (mousedev->touch && mousedev->pkt_count >= 2) {
+ size = input_abs_get_max(dev, ABS_X) -
+ input_abs_get_min(dev, ABS_X);
+ if (size == 0)
+ size = 256 * 2;
+
+ tmp = ((value - fx(2)) * 256 * FRACTION_DENOM) / size;
+ tmp += mousedev->frac_dx;
+ mousedev->packet.dx = tmp / FRACTION_DENOM;
+ mousedev->frac_dx =
+ tmp - mousedev->packet.dx * FRACTION_DENOM;
+ }
+ break;
+
+ case ABS_Y:
+ fy(0) = value;
+ if (mousedev->touch && mousedev->pkt_count >= 2) {
+ /* use X size for ABS_Y to keep the same scale */
+ size = input_abs_get_max(dev, ABS_X) -
+ input_abs_get_min(dev, ABS_X);
+ if (size == 0)
+ size = 256 * 2;
+
+ tmp = -((value - fy(2)) * 256 * FRACTION_DENOM) / size;
+ tmp += mousedev->frac_dy;
+ mousedev->packet.dy = tmp / FRACTION_DENOM;
+ mousedev->frac_dy = tmp -
+ mousedev->packet.dy * FRACTION_DENOM;
+ }
+ break;
+ }
+}
+
+static void mousedev_abs_event(struct input_dev *dev, struct mousedev *mousedev,
+ unsigned int code, int value)
+{
+ int min, max, size;
+
+ switch (code) {
+
+ case ABS_X:
+ min = input_abs_get_min(dev, ABS_X);
+ max = input_abs_get_max(dev, ABS_X);
+
+ size = max - min;
+ if (size == 0)
+ size = xres ? : 1;
+
+ value = clamp(value, min, max);
+
+ mousedev->packet.x = ((value - min) * xres) / size;
+ mousedev->packet.abs_event = 1;
+ break;
+
+ case ABS_Y:
+ min = input_abs_get_min(dev, ABS_Y);
+ max = input_abs_get_max(dev, ABS_Y);
+
+ size = max - min;
+ if (size == 0)
+ size = yres ? : 1;
+
+ value = clamp(value, min, max);
+
+ mousedev->packet.y = yres - ((value - min) * yres) / size;
+ mousedev->packet.abs_event = 1;
+ break;
+ }
+}
+
+static void mousedev_rel_event(struct mousedev *mousedev,
+ unsigned int code, int value)
+{
+ switch (code) {
+ case REL_X:
+ mousedev->packet.dx += value;
+ break;
+
+ case REL_Y:
+ mousedev->packet.dy -= value;
+ break;
+
+ case REL_WHEEL:
+ mousedev->packet.dz -= value;
+ break;
+ }
+}
+
+static void mousedev_key_event(struct mousedev *mousedev,
+ unsigned int code, int value)
+{
+ int index;
+
+ switch (code) {
+
+ case BTN_TOUCH:
+ case BTN_0:
+ case BTN_LEFT: index = 0; break;
+
+ case BTN_STYLUS:
+ case BTN_1:
+ case BTN_RIGHT: index = 1; break;
+
+ case BTN_2:
+ case BTN_FORWARD:
+ case BTN_STYLUS2:
+ case BTN_MIDDLE: index = 2; break;
+
+ case BTN_3:
+ case BTN_BACK:
+ case BTN_SIDE: index = 3; break;
+
+ case BTN_4:
+ case BTN_EXTRA: index = 4; break;
+
+ default: return;
+ }
+
+ if (value) {
+ set_bit(index, &mousedev->packet.buttons);
+ set_bit(index, &mousedev_mix->packet.buttons);
+ } else {
+ clear_bit(index, &mousedev->packet.buttons);
+ clear_bit(index, &mousedev_mix->packet.buttons);
+ }
+}
+
+static void mousedev_notify_readers(struct mousedev *mousedev,
+ struct mousedev_hw_data *packet)
+{
+ struct mousedev_client *client;
+ struct mousedev_motion *p;
+ unsigned int new_head;
+ int wake_readers = 0;
+
+ rcu_read_lock();
+ list_for_each_entry_rcu(client, &mousedev->client_list, node) {
+
+ /* Just acquire the lock, interrupts already disabled */
+ spin_lock(&client->packet_lock);
+
+ p = &client->packets[client->head];
+ if (client->ready && p->buttons != mousedev->packet.buttons) {
+ new_head = (client->head + 1) % PACKET_QUEUE_LEN;
+ if (new_head != client->tail) {
+ p = &client->packets[client->head = new_head];
+ memset(p, 0, sizeof(struct mousedev_motion));
+ }
+ }
+
+ if (packet->abs_event) {
+ p->dx += packet->x - client->pos_x;
+ p->dy += packet->y - client->pos_y;
+ client->pos_x = packet->x;
+ client->pos_y = packet->y;
+ }
+
+ client->pos_x += packet->dx;
+ client->pos_x = client->pos_x < 0 ?
+ 0 : (client->pos_x >= xres ? xres : client->pos_x);
+ client->pos_y += packet->dy;
+ client->pos_y = client->pos_y < 0 ?
+ 0 : (client->pos_y >= yres ? yres : client->pos_y);
+
+ p->dx += packet->dx;
+ p->dy += packet->dy;
+ p->dz += packet->dz;
+ p->buttons = mousedev->packet.buttons;
+
+ if (p->dx || p->dy || p->dz ||
+ p->buttons != client->last_buttons)
+ client->ready = 1;
+
+ spin_unlock(&client->packet_lock);
+
+ if (client->ready) {
+ kill_fasync(&client->fasync, SIGIO, POLL_IN);
+ wake_readers = 1;
+ }
+ }
+ rcu_read_unlock();
+
+ if (wake_readers)
+ wake_up_interruptible(&mousedev->wait);
+}
+
+static void mousedev_touchpad_touch(struct mousedev *mousedev, int value)
+{
+ if (!value) {
+ if (mousedev->touch &&
+ time_before(jiffies,
+ mousedev->touch + msecs_to_jiffies(tap_time))) {
+ /*
+ * Toggle left button to emulate tap.
+ * We rely on the fact that mousedev_mix always has 0
+ * motion packet so we won't mess current position.
+ */
+ set_bit(0, &mousedev->packet.buttons);
+ set_bit(0, &mousedev_mix->packet.buttons);
+ mousedev_notify_readers(mousedev, &mousedev_mix->packet);
+ mousedev_notify_readers(mousedev_mix,
+ &mousedev_mix->packet);
+ clear_bit(0, &mousedev->packet.buttons);
+ clear_bit(0, &mousedev_mix->packet.buttons);
+ }
+ mousedev->touch = mousedev->pkt_count = 0;
+ mousedev->frac_dx = 0;
+ mousedev->frac_dy = 0;
+
+ } else if (!mousedev->touch)
+ mousedev->touch = jiffies;
+}
+
+static void mousedev_event(struct input_handle *handle,
+ unsigned int type, unsigned int code, int value)
+{
+ struct mousedev *mousedev = handle->private;
+
+ switch (type) {
+
+ case EV_ABS:
+ /* Ignore joysticks */
+ if (test_bit(BTN_TRIGGER, handle->dev->keybit))
+ return;
+
+ if (test_bit(BTN_TOOL_FINGER, handle->dev->keybit))
+ mousedev_touchpad_event(handle->dev,
+ mousedev, code, value);
+ else
+ mousedev_abs_event(handle->dev, mousedev, code, value);
+
+ break;
+
+ case EV_REL:
+ mousedev_rel_event(mousedev, code, value);
+ break;
+
+ case EV_KEY:
+ if (value != 2) {
+ if (code == BTN_TOUCH &&
+ test_bit(BTN_TOOL_FINGER, handle->dev->keybit))
+ mousedev_touchpad_touch(mousedev, value);
+ else
+ mousedev_key_event(mousedev, code, value);
+ }
+ break;
+
+ case EV_SYN:
+ if (code == SYN_REPORT) {
+ if (mousedev->touch) {
+ mousedev->pkt_count++;
+ /*
+ * Input system eats duplicate events,
+ * but we need all of them to do correct
+ * averaging so apply present one forward
+ */
+ fx(0) = fx(1);
+ fy(0) = fy(1);
+ }
+
+ mousedev_notify_readers(mousedev, &mousedev->packet);
+ mousedev_notify_readers(mousedev_mix, &mousedev->packet);
+
+ mousedev->packet.dx = mousedev->packet.dy =
+ mousedev->packet.dz = 0;
+ mousedev->packet.abs_event = 0;
+ }
+ break;
+ }
+}
+
+static int mousedev_fasync(int fd, struct file *file, int on)
+{
+ struct mousedev_client *client = file->private_data;
+
+ return fasync_helper(fd, file, on, &client->fasync);
+}
+
+static void mousedev_free(struct device *dev)
+{
+ struct mousedev *mousedev = container_of(dev, struct mousedev, dev);
+
+ input_put_device(mousedev->handle.dev);
+ kfree(mousedev);
+}
+
+static int mousedev_open_device(struct mousedev *mousedev)
+{
+ int retval;
+
+ retval = mutex_lock_interruptible(&mousedev->mutex);
+ if (retval)
+ return retval;
+
+ if (mousedev->minor == MOUSEDEV_MIX)
+ mixdev_open_devices();
+ else if (!mousedev->exist)
+ retval = -ENODEV;
+ else if (!mousedev->open++) {
+ retval = input_open_device(&mousedev->handle);
+ if (retval)
+ mousedev->open--;
+ }
+
+ mutex_unlock(&mousedev->mutex);
+ return retval;
+}
+
+static void mousedev_close_device(struct mousedev *mousedev)
+{
+ mutex_lock(&mousedev->mutex);
+
+ if (mousedev->minor == MOUSEDEV_MIX)
+ mixdev_close_devices();
+ else if (mousedev->exist && !--mousedev->open)
+ input_close_device(&mousedev->handle);
+
+ mutex_unlock(&mousedev->mutex);
+}
+
+/*
+ * Open all available devices so they can all be multiplexed in one.
+ * stream. Note that this function is called with mousedev_mix->mutex
+ * held.
+ */
+static void mixdev_open_devices(void)
+{
+ struct mousedev *mousedev;
+
+ if (mousedev_mix->open++)
+ return;
+
+ list_for_each_entry(mousedev, &mousedev_mix_list, mixdev_node) {
+ if (!mousedev->mixdev_open) {
+ if (mousedev_open_device(mousedev))
+ continue;
+
+ mousedev->mixdev_open = 1;
+ }
+ }
+}
+
+/*
+ * Close all devices that were opened as part of multiplexed
+ * device. Note that this function is called with mousedev_mix->mutex
+ * held.
+ */
+static void mixdev_close_devices(void)
+{
+ struct mousedev *mousedev;
+
+ if (--mousedev_mix->open)
+ return;
+
+ list_for_each_entry(mousedev, &mousedev_mix_list, mixdev_node) {
+ if (mousedev->mixdev_open) {
+ mousedev->mixdev_open = 0;
+ mousedev_close_device(mousedev);
+ }
+ }
+}
+
+
+static void mousedev_attach_client(struct mousedev *mousedev,
+ struct mousedev_client *client)
+{
+ spin_lock(&mousedev->client_lock);
+ list_add_tail_rcu(&client->node, &mousedev->client_list);
+ spin_unlock(&mousedev->client_lock);
+}
+
+static void mousedev_detach_client(struct mousedev *mousedev,
+ struct mousedev_client *client)
+{
+ spin_lock(&mousedev->client_lock);
+ list_del_rcu(&client->node);
+ spin_unlock(&mousedev->client_lock);
+ synchronize_rcu();
+}
+
+static int mousedev_release(struct inode *inode, struct file *file)
+{
+ struct mousedev_client *client = file->private_data;
+ struct mousedev *mousedev = client->mousedev;
+
+ mousedev_detach_client(mousedev, client);
+ kfree(client);
+
+ mousedev_close_device(mousedev);
+ put_device(&mousedev->dev);
+
+ return 0;
+}
+
+static int mousedev_open(struct inode *inode, struct file *file)
+{
+ struct mousedev_client *client;
+ struct mousedev *mousedev;
+ int error;
+ int i;
+
+#ifdef CONFIG_INPUT_MOUSEDEV_PSAUX
+ if (imajor(inode) == MISC_MAJOR)
+ i = MOUSEDEV_MIX;
+ else
+#endif
+ i = iminor(inode) - MOUSEDEV_MINOR_BASE;
+
+ if (i >= MOUSEDEV_MINORS)
+ return -ENODEV;
+
+ error = mutex_lock_interruptible(&mousedev_table_mutex);
+ if (error) {
+ return error;
+ }
+ mousedev = mousedev_table[i];
+ if (mousedev)
+ get_device(&mousedev->dev);
+ mutex_unlock(&mousedev_table_mutex);
+
+ if (!mousedev) {
+ return -ENODEV;
+ }
+
+ client = kzalloc(sizeof(struct mousedev_client), GFP_KERNEL);
+ if (!client) {
+ error = -ENOMEM;
+ goto err_put_mousedev;
+ }
+
+ spin_lock_init(&client->packet_lock);
+ client->pos_x = xres / 2;
+ client->pos_y = yres / 2;
+ client->mousedev = mousedev;
+ mousedev_attach_client(mousedev, client);
+
+ error = mousedev_open_device(mousedev);
+ if (error)
+ goto err_free_client;
+
+ file->private_data = client;
+ return 0;
+
+ err_free_client:
+ mousedev_detach_client(mousedev, client);
+ kfree(client);
+ err_put_mousedev:
+ put_device(&mousedev->dev);
+ return error;
+}
+
+static inline int mousedev_limit_delta(int delta, int limit)
+{
+ return delta > limit ? limit : (delta < -limit ? -limit : delta);
+}
+
+static void mousedev_packet(struct mousedev_client *client,
+ signed char *ps2_data)
+{
+ struct mousedev_motion *p = &client->packets[client->tail];
+
+ ps2_data[0] = 0x08 |
+ ((p->dx < 0) << 4) | ((p->dy < 0) << 5) | (p->buttons & 0x07);
+ ps2_data[1] = mousedev_limit_delta(p->dx, 127);
+ ps2_data[2] = mousedev_limit_delta(p->dy, 127);
+ p->dx -= ps2_data[1];
+ p->dy -= ps2_data[2];
+
+ switch (client->mode) {
+ case MOUSEDEV_EMUL_EXPS:
+ ps2_data[3] = mousedev_limit_delta(p->dz, 7);
+ p->dz -= ps2_data[3];
+ ps2_data[3] = (ps2_data[3] & 0x0f) | ((p->buttons & 0x18) << 1);
+ client->bufsiz = 4;
+ break;
+
+ case MOUSEDEV_EMUL_IMPS:
+ ps2_data[0] |=
+ ((p->buttons & 0x10) >> 3) | ((p->buttons & 0x08) >> 1);
+ ps2_data[3] = mousedev_limit_delta(p->dz, 127);
+ p->dz -= ps2_data[3];
+ client->bufsiz = 4;
+ break;
+
+ case MOUSEDEV_EMUL_PS2:
+ default:
+ ps2_data[0] |=
+ ((p->buttons & 0x10) >> 3) | ((p->buttons & 0x08) >> 1);
+ p->dz = 0;
+ client->bufsiz = 3;
+ break;
+ }
+
+ if (!p->dx && !p->dy && !p->dz) {
+ if (client->tail == client->head) {
+ client->ready = 0;
+ client->last_buttons = p->buttons;
+ } else
+ client->tail = (client->tail + 1) % PACKET_QUEUE_LEN;
+ }
+}
+
+static void mousedev_generate_response(struct mousedev_client *client,
+ int command)
+{
+ client->ps2[0] = 0xfa; /* ACK */
+
+ switch (command) {
+
+ case 0xeb: /* Poll */
+ mousedev_packet(client, &client->ps2[1]);
+ client->bufsiz++; /* account for leading ACK */
+ break;
+
+ case 0xf2: /* Get ID */
+ switch (client->mode) {
+ case MOUSEDEV_EMUL_PS2:
+ client->ps2[1] = 0;
+ break;
+ case MOUSEDEV_EMUL_IMPS:
+ client->ps2[1] = 3;
+ break;
+ case MOUSEDEV_EMUL_EXPS:
+ client->ps2[1] = 4;
+ break;
+ }
+ client->bufsiz = 2;
+ break;
+
+ case 0xe9: /* Get info */
+ client->ps2[1] = 0x60; client->ps2[2] = 3; client->ps2[3] = 200;
+ client->bufsiz = 4;
+ break;
+
+ case 0xff: /* Reset */
+ client->impsseq = client->imexseq = 0;
+ client->mode = MOUSEDEV_EMUL_PS2;
+ client->ps2[1] = 0xaa; client->ps2[2] = 0x00;
+ client->bufsiz = 3;
+ break;
+
+ default:
+ client->bufsiz = 1;
+ break;
+ }
+ client->buffer = client->bufsiz;
+}
+
+static ssize_t mousedev_write(struct file *file, const char __user *buffer,
+ size_t count, loff_t *ppos)
+{
+ struct mousedev_client *client = file->private_data;
+ unsigned char c;
+ unsigned int i;
+
+ for (i = 0; i < count; i++) {
+
+ if (get_user(c, buffer + i))
+ return -EFAULT;
+
+ spin_lock_irq(&client->packet_lock);
+
+ if (c == mousedev_imex_seq[client->imexseq]) {
+ if (++client->imexseq == MOUSEDEV_SEQ_LEN) {
+ client->imexseq = 0;
+ client->mode = MOUSEDEV_EMUL_EXPS;
+ }
+ } else
+ client->imexseq = 0;
+
+ if (c == mousedev_imps_seq[client->impsseq]) {
+ if (++client->impsseq == MOUSEDEV_SEQ_LEN) {
+ client->impsseq = 0;
+ client->mode = MOUSEDEV_EMUL_IMPS;
+ }
+ } else
+ client->impsseq = 0;
+
+ mousedev_generate_response(client, c);
+
+ spin_unlock_irq(&client->packet_lock);
+ }
+
+ kill_fasync(&client->fasync, SIGIO, POLL_IN);
+ wake_up_interruptible(&client->mousedev->wait);
+
+ return count;
+}
+
+static ssize_t mousedev_read(struct file *file, char __user *buffer,
+ size_t count, loff_t *ppos)
+{
+ struct mousedev_client *client = file->private_data;
+ struct mousedev *mousedev = client->mousedev;
+ signed char data[sizeof(client->ps2)];
+ int retval = 0;
+
+ if (!client->ready && !client->buffer && mousedev->exist &&
+ (file->f_flags & O_NONBLOCK))
+ return -EAGAIN;
+
+ retval = wait_event_interruptible(mousedev->wait,
+ !mousedev->exist || client->ready || client->buffer);
+ if (retval)
+ return retval;
+
+ if (!mousedev->exist)
+ return -ENODEV;
+
+ spin_lock_irq(&client->packet_lock);
+
+ if (!client->buffer && client->ready) {
+ mousedev_packet(client, client->ps2);
+ client->buffer = client->bufsiz;
+ }
+
+ if (count > client->buffer)
+ count = client->buffer;
+
+ memcpy(data, client->ps2 + client->bufsiz - client->buffer, count);
+ client->buffer -= count;
+
+ spin_unlock_irq(&client->packet_lock);
+
+ if (copy_to_user(buffer, data, count))
+ return -EFAULT;
+
+ return count;
+}
+
+/* No kernel lock - fine */
+static unsigned int mousedev_poll(struct file *file, poll_table *wait)
+{
+ struct mousedev_client *client = file->private_data;
+ struct mousedev *mousedev = client->mousedev;
+ unsigned int mask;
+
+ poll_wait(file, &mousedev->wait, wait);
+
+ mask = mousedev->exist ? POLLOUT | POLLWRNORM : POLLHUP | POLLERR;
+ if (client->ready || client->buffer)
+ mask |= POLLIN | POLLRDNORM;
+
+ return mask;
+}
+
+static const struct file_operations mousedev_fops = {
+ .owner = THIS_MODULE,
+ .read = mousedev_read,
+ .write = mousedev_write,
+ .poll = mousedev_poll,
+ .open = mousedev_open,
+ .release = mousedev_release,
+ .fasync = mousedev_fasync,
+ .llseek = noop_llseek,
+};
+
+static int mousedev_install_chrdev(struct mousedev *mousedev)
+{
+ mousedev_table[mousedev->minor] = mousedev;
+ return 0;
+}
+
+static void mousedev_remove_chrdev(struct mousedev *mousedev)
+{
+ mutex_lock(&mousedev_table_mutex);
+ mousedev_table[mousedev->minor] = NULL;
+ mutex_unlock(&mousedev_table_mutex);
+}
+
+/*
+ * Mark device non-existent. This disables writes, ioctls and
+ * prevents new users from opening the device. Already posted
+ * blocking reads will stay, however new ones will fail.
+ */
+static void mousedev_mark_dead(struct mousedev *mousedev)
+{
+ mutex_lock(&mousedev->mutex);
+ mousedev->exist = false;
+ mutex_unlock(&mousedev->mutex);
+}
+
+/*
+ * Wake up users waiting for IO so they can disconnect from
+ * dead device.
+ */
+static void mousedev_hangup(struct mousedev *mousedev)
+{
+ struct mousedev_client *client;
+
+ spin_lock(&mousedev->client_lock);
+ list_for_each_entry(client, &mousedev->client_list, node)
+ kill_fasync(&client->fasync, SIGIO, POLL_HUP);
+ spin_unlock(&mousedev->client_lock);
+
+ wake_up_interruptible(&mousedev->wait);
+}
+
+static void mousedev_cleanup(struct mousedev *mousedev)
+{
+ struct input_handle *handle = &mousedev->handle;
+
+ mousedev_mark_dead(mousedev);
+ mousedev_hangup(mousedev);
+ mousedev_remove_chrdev(mousedev);
+
+ /* mousedev is marked dead so no one else accesses mousedev->open */
+ if (mousedev->open)
+ input_close_device(handle);
+}
+
+static struct mousedev *mousedev_create(struct input_dev *dev,
+ struct input_handler *handler,
+ int minor)
+{
+ struct mousedev *mousedev;
+ int error;
+
+ mousedev = kzalloc(sizeof(struct mousedev), GFP_KERNEL);
+ if (!mousedev) {
+ error = -ENOMEM;
+ goto err_out;
+ }
+
+ INIT_LIST_HEAD(&mousedev->client_list);
+ INIT_LIST_HEAD(&mousedev->mixdev_node);
+ spin_lock_init(&mousedev->client_lock);
+ mutex_init(&mousedev->mutex);
+ lockdep_set_subclass(&mousedev->mutex,
+ minor == MOUSEDEV_MIX ? SINGLE_DEPTH_NESTING : 0);
+ init_waitqueue_head(&mousedev->wait);
+
+ if (minor == MOUSEDEV_MIX)
+ dev_set_name(&mousedev->dev, "mice");
+ else
+ dev_set_name(&mousedev->dev, "mouse%d", minor);
+
+ mousedev->minor = minor;
+ mousedev->exist = true;
+ mousedev->handle.dev = input_get_device(dev);
+ mousedev->handle.name = dev_name(&mousedev->dev);
+ mousedev->handle.handler = handler;
+ mousedev->handle.private = mousedev;
+
+ mousedev->dev.class = &input_class;
+ if (dev)
+ mousedev->dev.parent = &dev->dev;
+ mousedev->dev.devt = MKDEV(INPUT_MAJOR, MOUSEDEV_MINOR_BASE + minor);
+ mousedev->dev.release = mousedev_free;
+ device_initialize(&mousedev->dev);
+
+ if (minor != MOUSEDEV_MIX) {
+ error = input_register_handle(&mousedev->handle);
+ if (error)
+ goto err_free_mousedev;
+ }
+
+ error = mousedev_install_chrdev(mousedev);
+ if (error)
+ goto err_unregister_handle;
+
+ error = device_add(&mousedev->dev);
+ if (error)
+ goto err_cleanup_mousedev;
+
+ return mousedev;
+
+ err_cleanup_mousedev:
+ mousedev_cleanup(mousedev);
+ err_unregister_handle:
+ if (minor != MOUSEDEV_MIX)
+ input_unregister_handle(&mousedev->handle);
+ err_free_mousedev:
+ put_device(&mousedev->dev);
+ err_out:
+ return ERR_PTR(error);
+}
+
+static void mousedev_destroy(struct mousedev *mousedev)
+{
+ device_del(&mousedev->dev);
+ mousedev_cleanup(mousedev);
+ if (mousedev->minor != MOUSEDEV_MIX)
+ input_unregister_handle(&mousedev->handle);
+ put_device(&mousedev->dev);
+}
+
+static int mixdev_add_device(struct mousedev *mousedev)
+{
+ int retval;
+
+ retval = mutex_lock_interruptible(&mousedev_mix->mutex);
+ if (retval)
+ return retval;
+
+ if (mousedev_mix->open) {
+ retval = mousedev_open_device(mousedev);
+ if (retval)
+ goto out;
+
+ mousedev->mixdev_open = 1;
+ }
+
+ get_device(&mousedev->dev);
+ list_add_tail(&mousedev->mixdev_node, &mousedev_mix_list);
+
+ out:
+ mutex_unlock(&mousedev_mix->mutex);
+ return retval;
+}
+
+static void mixdev_remove_device(struct mousedev *mousedev)
+{
+ mutex_lock(&mousedev_mix->mutex);
+
+ if (mousedev->mixdev_open) {
+ mousedev->mixdev_open = 0;
+ mousedev_close_device(mousedev);
+ }
+
+ list_del_init(&mousedev->mixdev_node);
+ mutex_unlock(&mousedev_mix->mutex);
+
+ put_device(&mousedev->dev);
+}
+
+static int mousedev_connect(struct input_handler *handler,
+ struct input_dev *dev,
+ const struct input_device_id *id)
+{
+ struct mousedev *mousedev;
+ int minor;
+ int error;
+
+ for (minor = 0; minor < MOUSEDEV_MINORS; minor++)
+ if (!mousedev_table[minor])
+ break;
+
+ if (minor == MOUSEDEV_MINORS) {
+ pr_err("no more free mousedev devices\n");
+ return -ENFILE;
+ }
+
+ mousedev = mousedev_create(dev, handler, minor);
+ if (IS_ERR(mousedev))
+ return PTR_ERR(mousedev);
+
+ error = mixdev_add_device(mousedev);
+ if (error) {
+ mousedev_destroy(mousedev);
+ return error;
+ }
+
+ return 0;
+}
+
+static void mousedev_disconnect(struct input_handle *handle)
+{
+ struct mousedev *mousedev = handle->private;
+
+ mixdev_remove_device(mousedev);
+ mousedev_destroy(mousedev);
+}
+
+static const struct input_device_id mousedev_ids[] = {
+ {
+ .flags = INPUT_DEVICE_ID_MATCH_EVBIT |
+ INPUT_DEVICE_ID_MATCH_KEYBIT |
+ INPUT_DEVICE_ID_MATCH_RELBIT,
+ .evbit = { BIT_MASK(EV_KEY) | BIT_MASK(EV_REL) },
+ .keybit = { [BIT_WORD(BTN_LEFT)] = BIT_MASK(BTN_LEFT) },
+ .relbit = { BIT_MASK(REL_X) | BIT_MASK(REL_Y) },
+ }, /* A mouse like device, at least one button,
+ two relative axes */
+ {
+ .flags = INPUT_DEVICE_ID_MATCH_EVBIT |
+ INPUT_DEVICE_ID_MATCH_RELBIT,
+ .evbit = { BIT_MASK(EV_KEY) | BIT_MASK(EV_REL) },
+ .relbit = { BIT_MASK(REL_WHEEL) },
+ }, /* A separate scrollwheel */
+ {
+ .flags = INPUT_DEVICE_ID_MATCH_EVBIT |
+ INPUT_DEVICE_ID_MATCH_KEYBIT |
+ INPUT_DEVICE_ID_MATCH_ABSBIT,
+ .evbit = { BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS) },
+ .keybit = { [BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH) },
+ .absbit = { BIT_MASK(ABS_X) | BIT_MASK(ABS_Y) },
+ }, /* A tablet like device, at least touch detection,
+ two absolute axes */
+ {
+ .flags = INPUT_DEVICE_ID_MATCH_EVBIT |
+ INPUT_DEVICE_ID_MATCH_KEYBIT |
+ INPUT_DEVICE_ID_MATCH_ABSBIT,
+ .evbit = { BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS) },
+ .keybit = { [BIT_WORD(BTN_TOOL_FINGER)] =
+ BIT_MASK(BTN_TOOL_FINGER) },
+ .absbit = { BIT_MASK(ABS_X) | BIT_MASK(ABS_Y) |
+ BIT_MASK(ABS_PRESSURE) |
+ BIT_MASK(ABS_TOOL_WIDTH) },
+ }, /* A touchpad */
+ {
+ .flags = INPUT_DEVICE_ID_MATCH_EVBIT |
+ INPUT_DEVICE_ID_MATCH_KEYBIT |
+ INPUT_DEVICE_ID_MATCH_ABSBIT,
+ .evbit = { BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS) },
+ .keybit = { [BIT_WORD(BTN_LEFT)] = BIT_MASK(BTN_LEFT) },
+ .absbit = { BIT_MASK(ABS_X) | BIT_MASK(ABS_Y) },
+ }, /* Mouse-like device with absolute X and Y but ordinary
+ clicks, like hp ILO2 High Performance mouse */
+
+ { }, /* Terminating entry */
+};
+
+MODULE_DEVICE_TABLE(input, mousedev_ids);
+
+static struct input_handler mousedev_handler = {
+ .event = mousedev_event,
+ .connect = mousedev_connect,
+ .disconnect = mousedev_disconnect,
+ .fops = &mousedev_fops,
+ .minor = MOUSEDEV_MINOR_BASE,
+ .name = "mousedev",
+ .id_table = mousedev_ids,
+};
+
+#ifdef CONFIG_INPUT_MOUSEDEV_PSAUX
+static struct miscdevice psaux_mouse = {
+ PSMOUSE_MINOR, "psaux", &mousedev_fops
+};
+static int psaux_registered;
+#endif
+
+static int __init mousedev_init(void)
+{
+ int error;
+
+ mousedev_mix = mousedev_create(NULL, &mousedev_handler, MOUSEDEV_MIX);
+ if (IS_ERR(mousedev_mix))
+ return PTR_ERR(mousedev_mix);
+
+ error = input_register_handler(&mousedev_handler);
+ if (error) {
+ mousedev_destroy(mousedev_mix);
+ return error;
+ }
+
+#ifdef CONFIG_INPUT_MOUSEDEV_PSAUX
+ error = misc_register(&psaux_mouse);
+ if (error)
+ pr_warning("could not register psaux device, error: %d\n",
+ error);
+ else
+ psaux_registered = 1;
+#endif
+
+ pr_info("PS/2 mouse device common for all mice\n");
+
+ return 0;
+}
+
+static void __exit mousedev_exit(void)
+{
+#ifdef CONFIG_INPUT_MOUSEDEV_PSAUX
+ if (psaux_registered)
+ misc_deregister(&psaux_mouse);
+#endif
+ input_unregister_handler(&mousedev_handler);
+ mousedev_destroy(mousedev_mix);
+}
+
+module_init(mousedev_init);
+module_exit(mousedev_exit);
diff --git a/drivers/input/serio/Kconfig b/drivers/input/serio/Kconfig
new file mode 100644
index 0000000..55f2c22
--- /dev/null
+++ b/drivers/input/serio/Kconfig
@@ -0,0 +1,237 @@
+#
+# Input core configuration
+#
+config SERIO
+ tristate "Serial I/O support" if EXPERT || !X86
+ default y
+ help
+ Say Yes here if you have any input device that uses serial I/O to
+ communicate with the system. This includes the
+ * standard AT keyboard and PS/2 mouse *
+ as well as serial mice, Sun keyboards, some joysticks and 6dof
+ devices and more.
+
+ If unsure, say Y.
+
+ To compile this driver as a module, choose M here: the
+ module will be called serio.
+
+if SERIO
+
+config SERIO_I8042
+ tristate "i8042 PC Keyboard controller" if EXPERT || !X86
+ default y
+ depends on !PARISC && (!ARM || ARCH_SHARK || FOOTBRIDGE_HOST) && \
+ (!SUPERH || SH_CAYMAN) && !M68K && !BLACKFIN
+ help
+ i8042 is the chip over which the standard AT keyboard and PS/2
+ mouse are connected to the computer. If you use these devices,
+ you'll need to say Y here.
+
+ If unsure, say Y.
+
+ To compile this driver as a module, choose M here: the
+ module will be called i8042.
+
+config SERIO_SERPORT
+ tristate "Serial port line discipline"
+ default y
+ help
+ Say Y here if you plan to use an input device (mouse, joystick,
+ tablet, 6dof) that communicates over the RS232 serial (COM) port.
+
+ More information is available: <file:Documentation/input/input.txt>
+
+ If unsure, say Y.
+
+ To compile this driver as a module, choose M here: the
+ module will be called serport.
+
+config SERIO_CT82C710
+ tristate "ct82c710 Aux port controller"
+ depends on X86
+ help
+ Say Y here if you have a Texas Instruments TravelMate notebook
+ equipped with the ct82c710 chip and want to use a mouse connected
+ to the "QuickPort".
+
+ If unsure, say N.
+
+ To compile this driver as a module, choose M here: the
+ module will be called ct82c710.
+
+config SERIO_Q40KBD
+ tristate "Q40 keyboard controller"
+ depends on Q40
+
+config SERIO_PARKBD
+ tristate "Parallel port keyboard adapter"
+ depends on PARPORT
+ help
+ Say Y here if you built a simple parallel port adapter to attach
+ an additional AT keyboard, XT keyboard or PS/2 mouse.
+
+ More information is available: <file:Documentation/input/input.txt>
+
+ If unsure, say N.
+
+ To compile this driver as a module, choose M here: the
+ module will be called parkbd.
+
+config SERIO_RPCKBD
+ tristate "Acorn RiscPC keyboard controller"
+ depends on ARCH_ACORN
+ default y
+ help
+ Say Y here if you have the Acorn RiscPC and want to use an AT
+ keyboard connected to its keyboard controller.
+
+ To compile this driver as a module, choose M here: the
+ module will be called rpckbd.
+
+config SERIO_AT32PSIF
+ tristate "AVR32 PSIF PS/2 keyboard and mouse controller"
+ depends on AVR32
+ help
+ Say Y here if you want to use the PSIF peripheral on AVR32 devices
+ and connect a PS/2 keyboard and/or mouse to it.
+
+ To compile this driver as a module, choose M here: the module will
+ be called at32psif.
+
+config SERIO_AMBAKMI
+ tristate "AMBA KMI keyboard controller"
+ depends on ARM_AMBA
+
+config SERIO_SA1111
+ tristate "Intel SA1111 keyboard controller"
+ depends on SA1111
+
+config SERIO_GSCPS2
+ tristate "HP GSC PS/2 keyboard and PS/2 mouse controller"
+ depends on GSC
+ default y
+ help
+ This driver provides support for the PS/2 ports on PA-RISC machines
+ over which HP PS/2 keyboards and PS/2 mice may be connected.
+ If you use these devices, you'll need to say Y here.
+
+ It's safe to enable this driver, so if unsure, say Y.
+
+ To compile this driver as a module, choose M here: the
+ module will be called gscps2.
+
+config HP_SDC
+ tristate "HP System Device Controller i8042 Support"
+ depends on (GSC || HP300) && SERIO
+ default y
+ help
+ This option enables support for the "System Device
+ Controller", an i8042 carrying microcode to manage a
+ few miscellaneous devices on some Hewlett Packard systems.
+ The SDC itself contains a 10ms resolution timer/clock capable
+ of delivering interrupts on a periodic and one-shot basis.
+ The SDC may also be connected to a battery-backed real-time
+ clock, a basic audio waveform generator, and an HP-HIL Master
+ Link Controller serving up to seven input devices.
+
+ By itself this option is rather useless, but enabling it will
+ enable selection of drivers for the abovementioned devices.
+ It is, however, incompatible with the old, reliable HIL keyboard
+ driver, and the new HIL driver is experimental, so if you plan
+ to use a HIL keyboard as your primary keyboard, you may wish
+ to keep using that driver until the new HIL drivers have had
+ more testing.
+
+config HIL_MLC
+ tristate "HIL MLC Support (needed for HIL input devices)"
+ depends on HP_SDC
+
+config SERIO_PCIPS2
+ tristate "PCI PS/2 keyboard and PS/2 mouse controller"
+ depends on PCI
+ help
+ Say Y here if you have a Mobility Docking station with PS/2
+ keyboard and mice ports.
+
+ To compile this driver as a module, choose M here: the
+ module will be called pcips2.
+
+config SERIO_MACEPS2
+ tristate "SGI O2 MACE PS/2 controller"
+ depends on SGI_IP32
+ help
+ Say Y here if you have SGI O2 workstation and want to use its
+ PS/2 ports.
+
+ To compile this driver as a module, choose M here: the
+ module will be called maceps2.
+
+config SERIO_LIBPS2
+ tristate "PS/2 driver library" if EXPERT
+ depends on SERIO_I8042 || SERIO_I8042=n
+ help
+ Say Y here if you are using a driver for device connected
+ to a PS/2 port, such as PS/2 mouse or standard AT keyboard.
+
+ To compile this driver as a module, choose M here: the
+ module will be called libps2.
+
+config SERIO_RAW
+ tristate "Raw access to serio ports"
+ help
+ Say Y here if you want to have raw access to serio ports, such as
+ AUX ports on i8042 keyboard controller. Each serio port that is
+ bound to this driver will be accessible via a char device with
+ major 10 and dynamically allocated minor. The driver will try
+ allocating minor 1 (that historically corresponds to /dev/psaux)
+ first. To bind this driver to a serio port use sysfs interface:
+
+ echo -n "serio_raw" > /sys/bus/serio/devices/serioX/drvctl
+
+ To compile this driver as a module, choose M here: the
+ module will be called serio_raw.
+
+config SERIO_XILINX_XPS_PS2
+ tristate "Xilinx XPS PS/2 Controller Support"
+ depends on PPC || MICROBLAZE
+ help
+ This driver supports XPS PS/2 IP from the Xilinx EDK on
+ PowerPC platform.
+
+ To compile this driver as a module, choose M here: the
+ module will be called xilinx_ps2.
+
+config SERIO_ALTERA_PS2
+ tristate "Altera UP PS/2 controller"
+ help
+ Say Y here if you have Altera University Program PS/2 ports.
+
+ To compile this driver as a module, choose M here: the
+ module will be called altera_ps2.
+
+config SERIO_AMS_DELTA
+ tristate "Amstrad Delta (E3) mailboard support"
+ depends on MACH_AMS_DELTA
+ default y
+ ---help---
+ Say Y here if you have an E3 and want to use its mailboard,
+ or any standard AT keyboard connected to the mailboard port.
+
+ When used for the E3 mailboard, a non-standard key table
+ must be loaded from userspace, possibly using udev extras
+ provided keymap helper utility.
+
+ To compile this driver as a module, choose M here;
+ the module will be called ams_delta_serio.
+
+config SERIO_PS2MULT
+ tristate "TQC PS/2 multiplexer"
+ help
+ Say Y here if you have the PS/2 line multiplexer like the one
+ present on TQC boards.
+
+ To compile this driver as a module, choose M here: the
+ module will be called ps2mult.
+
+endif
diff --git a/drivers/input/serio/Makefile b/drivers/input/serio/Makefile
new file mode 100644
index 0000000..dbbe376
--- /dev/null
+++ b/drivers/input/serio/Makefile
@@ -0,0 +1,27 @@
+#
+# Makefile for the input core drivers.
+#
+
+# Each configuration option enables a list of files.
+
+obj-$(CONFIG_SERIO) += serio.o
+obj-$(CONFIG_SERIO_I8042) += i8042.o
+obj-$(CONFIG_SERIO_PARKBD) += parkbd.o
+obj-$(CONFIG_SERIO_SERPORT) += serport.o
+obj-$(CONFIG_SERIO_CT82C710) += ct82c710.o
+obj-$(CONFIG_SERIO_RPCKBD) += rpckbd.o
+obj-$(CONFIG_SERIO_SA1111) += sa1111ps2.o
+obj-$(CONFIG_SERIO_AMBAKMI) += ambakmi.o
+obj-$(CONFIG_SERIO_AT32PSIF) += at32psif.o
+obj-$(CONFIG_SERIO_Q40KBD) += q40kbd.o
+obj-$(CONFIG_SERIO_GSCPS2) += gscps2.o
+obj-$(CONFIG_HP_SDC) += hp_sdc.o
+obj-$(CONFIG_HIL_MLC) += hp_sdc_mlc.o hil_mlc.o
+obj-$(CONFIG_SERIO_PCIPS2) += pcips2.o
+obj-$(CONFIG_SERIO_PS2MULT) += ps2mult.o
+obj-$(CONFIG_SERIO_MACEPS2) += maceps2.o
+obj-$(CONFIG_SERIO_LIBPS2) += libps2.o
+obj-$(CONFIG_SERIO_RAW) += serio_raw.o
+obj-$(CONFIG_SERIO_AMS_DELTA) += ams_delta_serio.o
+obj-$(CONFIG_SERIO_XILINX_XPS_PS2) += xilinx_ps2.o
+obj-$(CONFIG_SERIO_ALTERA_PS2) += altera_ps2.o
diff --git a/drivers/input/serio/altera_ps2.c b/drivers/input/serio/altera_ps2.c
new file mode 100644
index 0000000..d363dc4
--- /dev/null
+++ b/drivers/input/serio/altera_ps2.c
@@ -0,0 +1,215 @@
+/*
+ * Altera University Program PS2 controller driver
+ *
+ * Copyright (C) 2008 Thomas Chou <thomas@wytron.com.tw>
+ *
+ * Based on sa1111ps2.c, which is:
+ * Copyright (C) 2002 Russell King
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/input.h>
+#include <linux/serio.h>
+#include <linux/interrupt.h>
+#include <linux/platform_device.h>
+#include <linux/io.h>
+#include <linux/slab.h>
+#include <linux/of.h>
+
+#define DRV_NAME "altera_ps2"
+
+struct ps2if {
+ struct serio *io;
+ struct resource *iomem_res;
+ void __iomem *base;
+ unsigned irq;
+};
+
+/*
+ * Read all bytes waiting in the PS2 port. There should be
+ * at the most one, but we loop for safety.
+ */
+static irqreturn_t altera_ps2_rxint(int irq, void *dev_id)
+{
+ struct ps2if *ps2if = dev_id;
+ unsigned int status;
+ int handled = IRQ_NONE;
+
+ while ((status = readl(ps2if->base)) & 0xffff0000) {
+ serio_interrupt(ps2if->io, status & 0xff, 0);
+ handled = IRQ_HANDLED;
+ }
+
+ return handled;
+}
+
+/*
+ * Write a byte to the PS2 port.
+ */
+static int altera_ps2_write(struct serio *io, unsigned char val)
+{
+ struct ps2if *ps2if = io->port_data;
+
+ writel(val, ps2if->base);
+ return 0;
+}
+
+static int altera_ps2_open(struct serio *io)
+{
+ struct ps2if *ps2if = io->port_data;
+
+ /* clear fifo */
+ while (readl(ps2if->base) & 0xffff0000)
+ /* empty */;
+
+ writel(1, ps2if->base + 4); /* enable rx irq */
+ return 0;
+}
+
+static void altera_ps2_close(struct serio *io)
+{
+ struct ps2if *ps2if = io->port_data;
+
+ writel(0, ps2if->base); /* disable rx irq */
+}
+
+/*
+ * Add one device to this driver.
+ */
+static int __devinit altera_ps2_probe(struct platform_device *pdev)
+{
+ struct ps2if *ps2if;
+ struct serio *serio;
+ int error, irq;
+
+ ps2if = kzalloc(sizeof(struct ps2if), GFP_KERNEL);
+ serio = kzalloc(sizeof(struct serio), GFP_KERNEL);
+ if (!ps2if || !serio) {
+ error = -ENOMEM;
+ goto err_free_mem;
+ }
+
+ serio->id.type = SERIO_8042;
+ serio->write = altera_ps2_write;
+ serio->open = altera_ps2_open;
+ serio->close = altera_ps2_close;
+ strlcpy(serio->name, dev_name(&pdev->dev), sizeof(serio->name));
+ strlcpy(serio->phys, dev_name(&pdev->dev), sizeof(serio->phys));
+ serio->port_data = ps2if;
+ serio->dev.parent = &pdev->dev;
+ ps2if->io = serio;
+
+ ps2if->iomem_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (ps2if->iomem_res == NULL) {
+ error = -ENOENT;
+ goto err_free_mem;
+ }
+
+
+ irq = platform_get_irq(pdev, 0);
+ if (irq < 0) {
+ error = -ENXIO;
+ goto err_free_mem;
+ }
+ ps2if->irq = irq;
+
+ if (!request_mem_region(ps2if->iomem_res->start,
+ resource_size(ps2if->iomem_res), pdev->name)) {
+ error = -EBUSY;
+ goto err_free_mem;
+ }
+
+ ps2if->base = ioremap(ps2if->iomem_res->start,
+ resource_size(ps2if->iomem_res));
+ if (!ps2if->base) {
+ error = -ENOMEM;
+ goto err_free_res;
+ }
+
+ error = request_irq(ps2if->irq, altera_ps2_rxint, 0, pdev->name, ps2if);
+ if (error) {
+ dev_err(&pdev->dev, "could not allocate IRQ %d: %d\n",
+ ps2if->irq, error);
+ goto err_unmap;
+ }
+
+ dev_info(&pdev->dev, "base %p, irq %d\n", ps2if->base, ps2if->irq);
+
+ serio_register_port(ps2if->io);
+ platform_set_drvdata(pdev, ps2if);
+
+ return 0;
+
+ err_unmap:
+ iounmap(ps2if->base);
+ err_free_res:
+ release_mem_region(ps2if->iomem_res->start,
+ resource_size(ps2if->iomem_res));
+ err_free_mem:
+ kfree(ps2if);
+ kfree(serio);
+ return error;
+}
+
+/*
+ * Remove one device from this driver.
+ */
+static int __devexit altera_ps2_remove(struct platform_device *pdev)
+{
+ struct ps2if *ps2if = platform_get_drvdata(pdev);
+
+ platform_set_drvdata(pdev, NULL);
+ serio_unregister_port(ps2if->io);
+ free_irq(ps2if->irq, ps2if);
+ iounmap(ps2if->base);
+ release_mem_region(ps2if->iomem_res->start,
+ resource_size(ps2if->iomem_res));
+ kfree(ps2if);
+
+ return 0;
+}
+
+#ifdef CONFIG_OF
+static const struct of_device_id altera_ps2_match[] = {
+ { .compatible = "ALTR,ps2-1.0", },
+ {},
+};
+MODULE_DEVICE_TABLE(of, altera_ps2_match);
+#else /* CONFIG_OF */
+#define altera_ps2_match NULL
+#endif /* CONFIG_OF */
+
+/*
+ * Our device driver structure
+ */
+static struct platform_driver altera_ps2_driver = {
+ .probe = altera_ps2_probe,
+ .remove = __devexit_p(altera_ps2_remove),
+ .driver = {
+ .name = DRV_NAME,
+ .owner = THIS_MODULE,
+ .of_match_table = altera_ps2_match,
+ },
+};
+
+static int __init altera_ps2_init(void)
+{
+ return platform_driver_register(&altera_ps2_driver);
+}
+module_init(altera_ps2_init);
+
+static void __exit altera_ps2_exit(void)
+{
+ platform_driver_unregister(&altera_ps2_driver);
+}
+module_exit(altera_ps2_exit);
+
+MODULE_DESCRIPTION("Altera University Program PS2 controller driver");
+MODULE_AUTHOR("Thomas Chou <thomas@wytron.com.tw>");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:" DRV_NAME);
diff --git a/drivers/input/serio/ambakmi.c b/drivers/input/serio/ambakmi.c
new file mode 100644
index 0000000..12abc50
--- /dev/null
+++ b/drivers/input/serio/ambakmi.c
@@ -0,0 +1,224 @@
+/*
+ * linux/drivers/input/serio/ambakmi.c
+ *
+ * Copyright (C) 2000-2003 Deep Blue Solutions Ltd.
+ * Copyright (C) 2002 Russell King.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/serio.h>
+#include <linux/errno.h>
+#include <linux/interrupt.h>
+#include <linux/ioport.h>
+#include <linux/device.h>
+#include <linux/delay.h>
+#include <linux/slab.h>
+#include <linux/err.h>
+#include <linux/amba/bus.h>
+#include <linux/amba/kmi.h>
+#include <linux/clk.h>
+
+#include <asm/io.h>
+#include <asm/irq.h>
+
+#define KMI_BASE (kmi->base)
+
+struct amba_kmi_port {
+ struct serio *io;
+ struct clk *clk;
+ void __iomem *base;
+ unsigned int irq;
+ unsigned int divisor;
+ unsigned int open;
+};
+
+static irqreturn_t amba_kmi_int(int irq, void *dev_id)
+{
+ struct amba_kmi_port *kmi = dev_id;
+ unsigned int status = readb(KMIIR);
+ int handled = IRQ_NONE;
+
+ while (status & KMIIR_RXINTR) {
+ serio_interrupt(kmi->io, readb(KMIDATA), 0);
+ status = readb(KMIIR);
+ handled = IRQ_HANDLED;
+ }
+
+ return handled;
+}
+
+static int amba_kmi_write(struct serio *io, unsigned char val)
+{
+ struct amba_kmi_port *kmi = io->port_data;
+ unsigned int timeleft = 10000; /* timeout in 100ms */
+
+ while ((readb(KMISTAT) & KMISTAT_TXEMPTY) == 0 && --timeleft)
+ udelay(10);
+
+ if (timeleft)
+ writeb(val, KMIDATA);
+
+ return timeleft ? 0 : SERIO_TIMEOUT;
+}
+
+static int amba_kmi_open(struct serio *io)
+{
+ struct amba_kmi_port *kmi = io->port_data;
+ unsigned int divisor;
+ int ret;
+
+ ret = clk_enable(kmi->clk);
+ if (ret)
+ goto out;
+
+ divisor = clk_get_rate(kmi->clk) / 8000000 - 1;
+ writeb(divisor, KMICLKDIV);
+ writeb(KMICR_EN, KMICR);
+
+ ret = request_irq(kmi->irq, amba_kmi_int, 0, "kmi-pl050", kmi);
+ if (ret) {
+ printk(KERN_ERR "kmi: failed to claim IRQ%d\n", kmi->irq);
+ writeb(0, KMICR);
+ goto clk_disable;
+ }
+
+ writeb(KMICR_EN | KMICR_RXINTREN, KMICR);
+
+ return 0;
+
+ clk_disable:
+ clk_disable(kmi->clk);
+ out:
+ return ret;
+}
+
+static void amba_kmi_close(struct serio *io)
+{
+ struct amba_kmi_port *kmi = io->port_data;
+
+ writeb(0, KMICR);
+
+ free_irq(kmi->irq, kmi);
+ clk_disable(kmi->clk);
+}
+
+static int __devinit amba_kmi_probe(struct amba_device *dev,
+ const struct amba_id *id)
+{
+ struct amba_kmi_port *kmi;
+ struct serio *io;
+ int ret;
+
+ ret = amba_request_regions(dev, NULL);
+ if (ret)
+ return ret;
+
+ kmi = kzalloc(sizeof(struct amba_kmi_port), GFP_KERNEL);
+ io = kzalloc(sizeof(struct serio), GFP_KERNEL);
+ if (!kmi || !io) {
+ ret = -ENOMEM;
+ goto out;
+ }
+
+
+ io->id.type = SERIO_8042;
+ io->write = amba_kmi_write;
+ io->open = amba_kmi_open;
+ io->close = amba_kmi_close;
+ strlcpy(io->name, dev_name(&dev->dev), sizeof(io->name));
+ strlcpy(io->phys, dev_name(&dev->dev), sizeof(io->phys));
+ io->port_data = kmi;
+ io->dev.parent = &dev->dev;
+
+ kmi->io = io;
+ kmi->base = ioremap(dev->res.start, resource_size(&dev->res));
+ if (!kmi->base) {
+ ret = -ENOMEM;
+ goto out;
+ }
+
+ kmi->clk = clk_get(&dev->dev, "KMIREFCLK");
+ if (IS_ERR(kmi->clk)) {
+ ret = PTR_ERR(kmi->clk);
+ goto unmap;
+ }
+
+ kmi->irq = dev->irq[0];
+ amba_set_drvdata(dev, kmi);
+
+ serio_register_port(kmi->io);
+ return 0;
+
+ unmap:
+ iounmap(kmi->base);
+ out:
+ kfree(kmi);
+ kfree(io);
+ amba_release_regions(dev);
+ return ret;
+}
+
+static int __devexit amba_kmi_remove(struct amba_device *dev)
+{
+ struct amba_kmi_port *kmi = amba_get_drvdata(dev);
+
+ amba_set_drvdata(dev, NULL);
+
+ serio_unregister_port(kmi->io);
+ clk_put(kmi->clk);
+ iounmap(kmi->base);
+ kfree(kmi);
+ amba_release_regions(dev);
+ return 0;
+}
+
+static int amba_kmi_resume(struct amba_device *dev)
+{
+ struct amba_kmi_port *kmi = amba_get_drvdata(dev);
+
+ /* kick the serio layer to rescan this port */
+ serio_reconnect(kmi->io);
+
+ return 0;
+}
+
+static struct amba_id amba_kmi_idtable[] = {
+ {
+ .id = 0x00041050,
+ .mask = 0x000fffff,
+ },
+ { 0, 0 }
+};
+
+static struct amba_driver ambakmi_driver = {
+ .drv = {
+ .name = "kmi-pl050",
+ .owner = THIS_MODULE,
+ },
+ .id_table = amba_kmi_idtable,
+ .probe = amba_kmi_probe,
+ .remove = __devexit_p(amba_kmi_remove),
+ .resume = amba_kmi_resume,
+};
+
+static int __init amba_kmi_init(void)
+{
+ return amba_driver_register(&ambakmi_driver);
+}
+
+static void __exit amba_kmi_exit(void)
+{
+ amba_driver_unregister(&ambakmi_driver);
+}
+
+module_init(amba_kmi_init);
+module_exit(amba_kmi_exit);
+
+MODULE_AUTHOR("Russell King <rmk@arm.linux.org.uk>");
+MODULE_DESCRIPTION("AMBA KMI controller driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/input/serio/ams_delta_serio.c b/drivers/input/serio/ams_delta_serio.c
new file mode 100644
index 0000000..d4d08bd
--- /dev/null
+++ b/drivers/input/serio/ams_delta_serio.c
@@ -0,0 +1,177 @@
+/*
+ * Amstrad E3 (Delta) keyboard port driver
+ *
+ * Copyright (c) 2006 Matt Callow
+ * Copyright (c) 2010 Janusz Krzysztofik
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * Thanks to Cliff Lawson for his help
+ *
+ * The Amstrad Delta keyboard (aka mailboard) uses normal PC-AT style serial
+ * transmission. The keyboard port is formed of two GPIO lines, for clock
+ * and data. Due to strict timing requirements of the interface,
+ * the serial data stream is read and processed by a FIQ handler.
+ * The resulting words are fetched by this driver from a circular buffer.
+ *
+ * Standard AT keyboard driver (atkbd) is used for handling the keyboard data.
+ * However, when used with the E3 mailboard that producecs non-standard
+ * scancodes, a custom key table must be prepared and loaded from userspace.
+ */
+#include <linux/gpio.h>
+#include <linux/irq.h>
+#include <linux/serio.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+
+#include <asm/mach-types.h>
+#include <plat/board-ams-delta.h>
+
+#include <mach/ams-delta-fiq.h>
+
+MODULE_AUTHOR("Matt Callow");
+MODULE_DESCRIPTION("AMS Delta (E3) keyboard port driver");
+MODULE_LICENSE("GPL");
+
+static struct serio *ams_delta_serio;
+
+static int check_data(int data)
+{
+ int i, parity = 0;
+
+ /* check valid stop bit */
+ if (!(data & 0x400)) {
+ dev_warn(&ams_delta_serio->dev,
+ "invalid stop bit, data=0x%X\n",
+ data);
+ return SERIO_FRAME;
+ }
+ /* calculate the parity */
+ for (i = 1; i < 10; i++) {
+ if (data & (1 << i))
+ parity++;
+ }
+ /* it should be odd */
+ if (!(parity & 0x01)) {
+ dev_warn(&ams_delta_serio->dev,
+ "paritiy check failed, data=0x%X parity=0x%X\n",
+ data, parity);
+ return SERIO_PARITY;
+ }
+ return 0;
+}
+
+static irqreturn_t ams_delta_serio_interrupt(int irq, void *dev_id)
+{
+ int *circ_buff = &fiq_buffer[FIQ_CIRC_BUFF];
+ int data, dfl;
+ u8 scancode;
+
+ fiq_buffer[FIQ_IRQ_PEND] = 0;
+
+ /*
+ * Read data from the circular buffer, check it
+ * and then pass it on the serio
+ */
+ while (fiq_buffer[FIQ_KEYS_CNT] > 0) {
+
+ data = circ_buff[fiq_buffer[FIQ_HEAD_OFFSET]++];
+ fiq_buffer[FIQ_KEYS_CNT]--;
+ if (fiq_buffer[FIQ_HEAD_OFFSET] == fiq_buffer[FIQ_BUF_LEN])
+ fiq_buffer[FIQ_HEAD_OFFSET] = 0;
+
+ dfl = check_data(data);
+ scancode = (u8) (data >> 1) & 0xFF;
+ serio_interrupt(ams_delta_serio, scancode, dfl);
+ }
+ return IRQ_HANDLED;
+}
+
+static int ams_delta_serio_open(struct serio *serio)
+{
+ /* enable keyboard */
+ ams_delta_latch2_write(AMD_DELTA_LATCH2_KEYBRD_PWR,
+ AMD_DELTA_LATCH2_KEYBRD_PWR);
+
+ return 0;
+}
+
+static void ams_delta_serio_close(struct serio *serio)
+{
+ /* disable keyboard */
+ ams_delta_latch2_write(AMD_DELTA_LATCH2_KEYBRD_PWR, 0);
+}
+
+static int __init ams_delta_serio_init(void)
+{
+ int err;
+
+ if (!machine_is_ams_delta())
+ return -ENODEV;
+
+ ams_delta_serio = kzalloc(sizeof(struct serio), GFP_KERNEL);
+ if (!ams_delta_serio)
+ return -ENOMEM;
+
+ ams_delta_serio->id.type = SERIO_8042;
+ ams_delta_serio->open = ams_delta_serio_open;
+ ams_delta_serio->close = ams_delta_serio_close;
+ strlcpy(ams_delta_serio->name, "AMS DELTA keyboard adapter",
+ sizeof(ams_delta_serio->name));
+ strlcpy(ams_delta_serio->phys, "GPIO/serio0",
+ sizeof(ams_delta_serio->phys));
+
+ err = gpio_request(AMS_DELTA_GPIO_PIN_KEYBRD_DATA, "serio-data");
+ if (err) {
+ pr_err("ams_delta_serio: Couldn't request gpio pin for data\n");
+ goto serio;
+ }
+ gpio_direction_input(AMS_DELTA_GPIO_PIN_KEYBRD_DATA);
+
+ err = gpio_request(AMS_DELTA_GPIO_PIN_KEYBRD_CLK, "serio-clock");
+ if (err) {
+ pr_err("ams_delta_serio: couldn't request gpio pin for clock\n");
+ goto gpio_data;
+ }
+ gpio_direction_input(AMS_DELTA_GPIO_PIN_KEYBRD_CLK);
+
+ err = request_irq(gpio_to_irq(AMS_DELTA_GPIO_PIN_KEYBRD_CLK),
+ ams_delta_serio_interrupt, IRQ_TYPE_EDGE_RISING,
+ "ams-delta-serio", 0);
+ if (err < 0) {
+ pr_err("ams_delta_serio: couldn't request gpio interrupt %d\n",
+ gpio_to_irq(AMS_DELTA_GPIO_PIN_KEYBRD_CLK));
+ goto gpio_clk;
+ }
+ /*
+ * Since GPIO register handling for keyboard clock pin is performed
+ * at FIQ level, switch back from edge to simple interrupt handler
+ * to avoid bad interaction.
+ */
+ irq_set_handler(gpio_to_irq(AMS_DELTA_GPIO_PIN_KEYBRD_CLK),
+ handle_simple_irq);
+
+ serio_register_port(ams_delta_serio);
+ dev_info(&ams_delta_serio->dev, "%s\n", ams_delta_serio->name);
+
+ return 0;
+gpio_clk:
+ gpio_free(AMS_DELTA_GPIO_PIN_KEYBRD_CLK);
+gpio_data:
+ gpio_free(AMS_DELTA_GPIO_PIN_KEYBRD_DATA);
+serio:
+ kfree(ams_delta_serio);
+ return err;
+}
+module_init(ams_delta_serio_init);
+
+static void __exit ams_delta_serio_exit(void)
+{
+ serio_unregister_port(ams_delta_serio);
+ free_irq(OMAP_GPIO_IRQ(AMS_DELTA_GPIO_PIN_KEYBRD_CLK), 0);
+ gpio_free(AMS_DELTA_GPIO_PIN_KEYBRD_CLK);
+ gpio_free(AMS_DELTA_GPIO_PIN_KEYBRD_DATA);
+}
+module_exit(ams_delta_serio_exit);
diff --git a/drivers/input/serio/at32psif.c b/drivers/input/serio/at32psif.c
new file mode 100644
index 0000000..95280f9
--- /dev/null
+++ b/drivers/input/serio/at32psif.c
@@ -0,0 +1,377 @@
+/*
+ * Copyright (C) 2007 Atmel Corporation
+ *
+ * Driver for the AT32AP700X PS/2 controller (PSIF).
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ */
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/device.h>
+#include <linux/init.h>
+#include <linux/serio.h>
+#include <linux/interrupt.h>
+#include <linux/delay.h>
+#include <linux/err.h>
+#include <linux/io.h>
+#include <linux/clk.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+
+/* PSIF register offsets */
+#define PSIF_CR 0x00
+#define PSIF_RHR 0x04
+#define PSIF_THR 0x08
+#define PSIF_SR 0x10
+#define PSIF_IER 0x14
+#define PSIF_IDR 0x18
+#define PSIF_IMR 0x1c
+#define PSIF_PSR 0x24
+
+/* Bitfields in control register. */
+#define PSIF_CR_RXDIS_OFFSET 1
+#define PSIF_CR_RXDIS_SIZE 1
+#define PSIF_CR_RXEN_OFFSET 0
+#define PSIF_CR_RXEN_SIZE 1
+#define PSIF_CR_SWRST_OFFSET 15
+#define PSIF_CR_SWRST_SIZE 1
+#define PSIF_CR_TXDIS_OFFSET 9
+#define PSIF_CR_TXDIS_SIZE 1
+#define PSIF_CR_TXEN_OFFSET 8
+#define PSIF_CR_TXEN_SIZE 1
+
+/* Bitfields in interrupt disable, enable, mask and status register. */
+#define PSIF_NACK_OFFSET 8
+#define PSIF_NACK_SIZE 1
+#define PSIF_OVRUN_OFFSET 5
+#define PSIF_OVRUN_SIZE 1
+#define PSIF_PARITY_OFFSET 9
+#define PSIF_PARITY_SIZE 1
+#define PSIF_RXRDY_OFFSET 4
+#define PSIF_RXRDY_SIZE 1
+#define PSIF_TXEMPTY_OFFSET 1
+#define PSIF_TXEMPTY_SIZE 1
+#define PSIF_TXRDY_OFFSET 0
+#define PSIF_TXRDY_SIZE 1
+
+/* Bitfields in prescale register. */
+#define PSIF_PSR_PRSCV_OFFSET 0
+#define PSIF_PSR_PRSCV_SIZE 12
+
+/* Bitfields in receive hold register. */
+#define PSIF_RHR_RXDATA_OFFSET 0
+#define PSIF_RHR_RXDATA_SIZE 8
+
+/* Bitfields in transmit hold register. */
+#define PSIF_THR_TXDATA_OFFSET 0
+#define PSIF_THR_TXDATA_SIZE 8
+
+/* Bit manipulation macros */
+#define PSIF_BIT(name) \
+ (1 << PSIF_##name##_OFFSET)
+
+#define PSIF_BF(name, value) \
+ (((value) & ((1 << PSIF_##name##_SIZE) - 1)) \
+ << PSIF_##name##_OFFSET)
+
+#define PSIF_BFEXT(name, value) \
+ (((value) >> PSIF_##name##_OFFSET) \
+ & ((1 << PSIF_##name##_SIZE) - 1))
+
+#define PSIF_BFINS(name, value, old) \
+ (((old) & ~(((1 << PSIF_##name##_SIZE) - 1) \
+ << PSIF_##name##_OFFSET)) \
+ | PSIF_BF(name, value))
+
+/* Register access macros */
+#define psif_readl(port, reg) \
+ __raw_readl((port)->regs + PSIF_##reg)
+
+#define psif_writel(port, reg, value) \
+ __raw_writel((value), (port)->regs + PSIF_##reg)
+
+struct psif {
+ struct platform_device *pdev;
+ struct clk *pclk;
+ struct serio *io;
+ void __iomem *regs;
+ unsigned int irq;
+ unsigned int open;
+ /* Prevent concurrent writes to PSIF THR. */
+ spinlock_t lock;
+};
+
+static irqreturn_t psif_interrupt(int irq, void *_ptr)
+{
+ struct psif *psif = _ptr;
+ int retval = IRQ_NONE;
+ unsigned int io_flags = 0;
+ unsigned long status;
+
+ status = psif_readl(psif, SR);
+
+ if (status & PSIF_BIT(RXRDY)) {
+ unsigned char val = (unsigned char) psif_readl(psif, RHR);
+
+ if (status & PSIF_BIT(PARITY))
+ io_flags |= SERIO_PARITY;
+ if (status & PSIF_BIT(OVRUN))
+ dev_err(&psif->pdev->dev, "overrun read error\n");
+
+ serio_interrupt(psif->io, val, io_flags);
+
+ retval = IRQ_HANDLED;
+ }
+
+ return retval;
+}
+
+static int psif_write(struct serio *io, unsigned char val)
+{
+ struct psif *psif = io->port_data;
+ unsigned long flags;
+ int timeout = 10;
+ int retval = 0;
+
+ spin_lock_irqsave(&psif->lock, flags);
+
+ while (!(psif_readl(psif, SR) & PSIF_BIT(TXEMPTY)) && timeout--)
+ udelay(50);
+
+ if (timeout >= 0) {
+ psif_writel(psif, THR, val);
+ } else {
+ dev_dbg(&psif->pdev->dev, "timeout writing to THR\n");
+ retval = -EBUSY;
+ }
+
+ spin_unlock_irqrestore(&psif->lock, flags);
+
+ return retval;
+}
+
+static int psif_open(struct serio *io)
+{
+ struct psif *psif = io->port_data;
+ int retval;
+
+ retval = clk_enable(psif->pclk);
+ if (retval)
+ goto out;
+
+ psif_writel(psif, CR, PSIF_BIT(CR_TXEN) | PSIF_BIT(CR_RXEN));
+ psif_writel(psif, IER, PSIF_BIT(RXRDY));
+
+ psif->open = 1;
+out:
+ return retval;
+}
+
+static void psif_close(struct serio *io)
+{
+ struct psif *psif = io->port_data;
+
+ psif->open = 0;
+
+ psif_writel(psif, IDR, ~0UL);
+ psif_writel(psif, CR, PSIF_BIT(CR_TXDIS) | PSIF_BIT(CR_RXDIS));
+
+ clk_disable(psif->pclk);
+}
+
+static void psif_set_prescaler(struct psif *psif)
+{
+ unsigned long prscv;
+ unsigned long rate = clk_get_rate(psif->pclk);
+
+ /* PRSCV = Pulse length (100 us) * PSIF module frequency. */
+ prscv = 100 * (rate / 1000000UL);
+
+ if (prscv > ((1<<PSIF_PSR_PRSCV_SIZE) - 1)) {
+ prscv = (1<<PSIF_PSR_PRSCV_SIZE) - 1;
+ dev_dbg(&psif->pdev->dev, "pclk too fast, "
+ "prescaler set to max\n");
+ }
+
+ clk_enable(psif->pclk);
+ psif_writel(psif, PSR, prscv);
+ clk_disable(psif->pclk);
+}
+
+static int __init psif_probe(struct platform_device *pdev)
+{
+ struct resource *regs;
+ struct psif *psif;
+ struct serio *io;
+ struct clk *pclk;
+ int irq;
+ int ret;
+
+ psif = kzalloc(sizeof(struct psif), GFP_KERNEL);
+ if (!psif) {
+ dev_dbg(&pdev->dev, "out of memory\n");
+ ret = -ENOMEM;
+ goto out;
+ }
+ psif->pdev = pdev;
+
+ io = kzalloc(sizeof(struct serio), GFP_KERNEL);
+ if (!io) {
+ dev_dbg(&pdev->dev, "out of memory\n");
+ ret = -ENOMEM;
+ goto out_free_psif;
+ }
+ psif->io = io;
+
+ regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!regs) {
+ dev_dbg(&pdev->dev, "no mmio resources defined\n");
+ ret = -ENOMEM;
+ goto out_free_io;
+ }
+
+ psif->regs = ioremap(regs->start, resource_size(regs));
+ if (!psif->regs) {
+ ret = -ENOMEM;
+ dev_dbg(&pdev->dev, "could not map I/O memory\n");
+ goto out_free_io;
+ }
+
+ pclk = clk_get(&pdev->dev, "pclk");
+ if (IS_ERR(pclk)) {
+ dev_dbg(&pdev->dev, "could not get peripheral clock\n");
+ ret = PTR_ERR(pclk);
+ goto out_iounmap;
+ }
+ psif->pclk = pclk;
+
+ /* Reset the PSIF to enter at a known state. */
+ ret = clk_enable(pclk);
+ if (ret) {
+ dev_dbg(&pdev->dev, "could not enable pclk\n");
+ goto out_put_clk;
+ }
+ psif_writel(psif, CR, PSIF_BIT(CR_SWRST));
+ clk_disable(pclk);
+
+ irq = platform_get_irq(pdev, 0);
+ if (irq < 0) {
+ dev_dbg(&pdev->dev, "could not get irq\n");
+ ret = -ENXIO;
+ goto out_put_clk;
+ }
+ ret = request_irq(irq, psif_interrupt, IRQF_SHARED, "at32psif", psif);
+ if (ret) {
+ dev_dbg(&pdev->dev, "could not request irq %d\n", irq);
+ goto out_put_clk;
+ }
+ psif->irq = irq;
+
+ io->id.type = SERIO_8042;
+ io->write = psif_write;
+ io->open = psif_open;
+ io->close = psif_close;
+ snprintf(io->name, sizeof(io->name), "AVR32 PS/2 port%d", pdev->id);
+ snprintf(io->phys, sizeof(io->phys), "at32psif/serio%d", pdev->id);
+ io->port_data = psif;
+ io->dev.parent = &pdev->dev;
+
+ psif_set_prescaler(psif);
+
+ spin_lock_init(&psif->lock);
+ serio_register_port(psif->io);
+ platform_set_drvdata(pdev, psif);
+
+ dev_info(&pdev->dev, "Atmel AVR32 PSIF PS/2 driver on 0x%08x irq %d\n",
+ (int)psif->regs, psif->irq);
+
+ return 0;
+
+out_put_clk:
+ clk_put(psif->pclk);
+out_iounmap:
+ iounmap(psif->regs);
+out_free_io:
+ kfree(io);
+out_free_psif:
+ kfree(psif);
+out:
+ return ret;
+}
+
+static int __exit psif_remove(struct platform_device *pdev)
+{
+ struct psif *psif = platform_get_drvdata(pdev);
+
+ psif_writel(psif, IDR, ~0UL);
+ psif_writel(psif, CR, PSIF_BIT(CR_TXDIS) | PSIF_BIT(CR_RXDIS));
+
+ serio_unregister_port(psif->io);
+ iounmap(psif->regs);
+ free_irq(psif->irq, psif);
+ clk_put(psif->pclk);
+ kfree(psif);
+
+ platform_set_drvdata(pdev, NULL);
+
+ return 0;
+}
+
+#ifdef CONFIG_PM
+static int psif_suspend(struct platform_device *pdev, pm_message_t state)
+{
+ struct psif *psif = platform_get_drvdata(pdev);
+
+ if (psif->open) {
+ psif_writel(psif, CR, PSIF_BIT(CR_RXDIS) | PSIF_BIT(CR_TXDIS));
+ clk_disable(psif->pclk);
+ }
+
+ return 0;
+}
+
+static int psif_resume(struct platform_device *pdev)
+{
+ struct psif *psif = platform_get_drvdata(pdev);
+
+ if (psif->open) {
+ clk_enable(psif->pclk);
+ psif_set_prescaler(psif);
+ psif_writel(psif, CR, PSIF_BIT(CR_RXEN) | PSIF_BIT(CR_TXEN));
+ }
+
+ return 0;
+}
+#else
+#define psif_suspend NULL
+#define psif_resume NULL
+#endif
+
+static struct platform_driver psif_driver = {
+ .remove = __exit_p(psif_remove),
+ .driver = {
+ .name = "atmel_psif",
+ .owner = THIS_MODULE,
+ },
+ .suspend = psif_suspend,
+ .resume = psif_resume,
+};
+
+static int __init psif_init(void)
+{
+ return platform_driver_probe(&psif_driver, psif_probe);
+}
+
+static void __exit psif_exit(void)
+{
+ platform_driver_unregister(&psif_driver);
+}
+
+module_init(psif_init);
+module_exit(psif_exit);
+
+MODULE_AUTHOR("Hans-Christian Egtvedt <egtvedt@samfundet.no>");
+MODULE_DESCRIPTION("Atmel AVR32 PSIF PS/2 driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/input/serio/ct82c710.c b/drivers/input/serio/ct82c710.c
new file mode 100644
index 0000000..8528165
--- /dev/null
+++ b/drivers/input/serio/ct82c710.c
@@ -0,0 +1,261 @@
+/*
+ * Copyright (c) 1999-2001 Vojtech Pavlik
+ */
+
+/*
+ * 82C710 C&T mouse port chip driver for Linux
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * Should you need to contact me, the author, you can do so either by
+ * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
+ * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
+ */
+
+#include <linux/delay.h>
+#include <linux/module.h>
+#include <linux/ioport.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/serio.h>
+#include <linux/errno.h>
+#include <linux/err.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+
+#include <asm/io.h>
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
+MODULE_DESCRIPTION("82C710 C&T mouse port chip driver");
+MODULE_LICENSE("GPL");
+
+/*
+ * ct82c710 interface
+ */
+
+#define CT82C710_DEV_IDLE 0x01 /* Device Idle */
+#define CT82C710_RX_FULL 0x02 /* Device Char received */
+#define CT82C710_TX_IDLE 0x04 /* Device XMIT Idle */
+#define CT82C710_RESET 0x08 /* Device Reset */
+#define CT82C710_INTS_ON 0x10 /* Device Interrupt On */
+#define CT82C710_ERROR_FLAG 0x20 /* Device Error */
+#define CT82C710_CLEAR 0x40 /* Device Clear */
+#define CT82C710_ENABLE 0x80 /* Device Enable */
+
+#define CT82C710_IRQ 12
+
+#define CT82C710_DATA ct82c710_iores.start
+#define CT82C710_STATUS (ct82c710_iores.start + 1)
+
+static struct serio *ct82c710_port;
+static struct platform_device *ct82c710_device;
+static struct resource ct82c710_iores;
+
+/*
+ * Interrupt handler for the 82C710 mouse port. A character
+ * is waiting in the 82C710.
+ */
+
+static irqreturn_t ct82c710_interrupt(int cpl, void *dev_id)
+{
+ return serio_interrupt(ct82c710_port, inb(CT82C710_DATA), 0);
+}
+
+/*
+ * Wait for device to send output char and flush any input char.
+ */
+
+static int ct82c170_wait(void)
+{
+ int timeout = 60000;
+
+ while ((inb(CT82C710_STATUS) & (CT82C710_RX_FULL | CT82C710_TX_IDLE | CT82C710_DEV_IDLE))
+ != (CT82C710_DEV_IDLE | CT82C710_TX_IDLE) && timeout) {
+
+ if (inb_p(CT82C710_STATUS) & CT82C710_RX_FULL) inb_p(CT82C710_DATA);
+
+ udelay(1);
+ timeout--;
+ }
+
+ return !timeout;
+}
+
+static void ct82c710_close(struct serio *serio)
+{
+ if (ct82c170_wait())
+ printk(KERN_WARNING "ct82c710.c: Device busy in close()\n");
+
+ outb_p(inb_p(CT82C710_STATUS) & ~(CT82C710_ENABLE | CT82C710_INTS_ON), CT82C710_STATUS);
+
+ if (ct82c170_wait())
+ printk(KERN_WARNING "ct82c710.c: Device busy in close()\n");
+
+ free_irq(CT82C710_IRQ, NULL);
+}
+
+static int ct82c710_open(struct serio *serio)
+{
+ unsigned char status;
+ int err;
+
+ err = request_irq(CT82C710_IRQ, ct82c710_interrupt, 0, "ct82c710", NULL);
+ if (err)
+ return err;
+
+ status = inb_p(CT82C710_STATUS);
+
+ status |= (CT82C710_ENABLE | CT82C710_RESET);
+ outb_p(status, CT82C710_STATUS);
+
+ status &= ~(CT82C710_RESET);
+ outb_p(status, CT82C710_STATUS);
+
+ status |= CT82C710_INTS_ON;
+ outb_p(status, CT82C710_STATUS); /* Enable interrupts */
+
+ while (ct82c170_wait()) {
+ printk(KERN_ERR "ct82c710: Device busy in open()\n");
+ status &= ~(CT82C710_ENABLE | CT82C710_INTS_ON);
+ outb_p(status, CT82C710_STATUS);
+ free_irq(CT82C710_IRQ, NULL);
+ return -EBUSY;
+ }
+
+ return 0;
+}
+
+/*
+ * Write to the 82C710 mouse device.
+ */
+
+static int ct82c710_write(struct serio *port, unsigned char c)
+{
+ if (ct82c170_wait()) return -1;
+ outb_p(c, CT82C710_DATA);
+ return 0;
+}
+
+/*
+ * See if we can find a 82C710 device. Read mouse address.
+ */
+
+static int __init ct82c710_detect(void)
+{
+ outb_p(0x55, 0x2fa); /* Any value except 9, ff or 36 */
+ outb_p(0xaa, 0x3fa); /* Inverse of 55 */
+ outb_p(0x36, 0x3fa); /* Address the chip */
+ outb_p(0xe4, 0x3fa); /* 390/4; 390 = config address */
+ outb_p(0x1b, 0x2fa); /* Inverse of e4 */
+ outb_p(0x0f, 0x390); /* Write index */
+ if (inb_p(0x391) != 0xe4) /* Config address found? */
+ return -ENODEV; /* No: no 82C710 here */
+
+ outb_p(0x0d, 0x390); /* Write index */
+ ct82c710_iores.start = inb_p(0x391) << 2; /* Get mouse I/O address */
+ ct82c710_iores.end = ct82c710_iores.start + 1;
+ ct82c710_iores.flags = IORESOURCE_IO;
+ outb_p(0x0f, 0x390);
+ outb_p(0x0f, 0x391); /* Close config mode */
+
+ return 0;
+}
+
+static int __devinit ct82c710_probe(struct platform_device *dev)
+{
+ ct82c710_port = kzalloc(sizeof(struct serio), GFP_KERNEL);
+ if (!ct82c710_port)
+ return -ENOMEM;
+
+ ct82c710_port->id.type = SERIO_8042;
+ ct82c710_port->dev.parent = &dev->dev;
+ ct82c710_port->open = ct82c710_open;
+ ct82c710_port->close = ct82c710_close;
+ ct82c710_port->write = ct82c710_write;
+ strlcpy(ct82c710_port->name, "C&T 82c710 mouse port",
+ sizeof(ct82c710_port->name));
+ snprintf(ct82c710_port->phys, sizeof(ct82c710_port->phys),
+ "isa%16llx/serio0", (unsigned long long)CT82C710_DATA);
+
+ serio_register_port(ct82c710_port);
+
+ printk(KERN_INFO "serio: C&T 82c710 mouse port at %#llx irq %d\n",
+ (unsigned long long)CT82C710_DATA, CT82C710_IRQ);
+
+ return 0;
+}
+
+static int __devexit ct82c710_remove(struct platform_device *dev)
+{
+ serio_unregister_port(ct82c710_port);
+
+ return 0;
+}
+
+static struct platform_driver ct82c710_driver = {
+ .driver = {
+ .name = "ct82c710",
+ .owner = THIS_MODULE,
+ },
+ .probe = ct82c710_probe,
+ .remove = __devexit_p(ct82c710_remove),
+};
+
+
+static int __init ct82c710_init(void)
+{
+ int error;
+
+ error = ct82c710_detect();
+ if (error)
+ return error;
+
+ error = platform_driver_register(&ct82c710_driver);
+ if (error)
+ return error;
+
+ ct82c710_device = platform_device_alloc("ct82c710", -1);
+ if (!ct82c710_device) {
+ error = -ENOMEM;
+ goto err_unregister_driver;
+ }
+
+ error = platform_device_add_resources(ct82c710_device, &ct82c710_iores, 1);
+ if (error)
+ goto err_free_device;
+
+ error = platform_device_add(ct82c710_device);
+ if (error)
+ goto err_free_device;
+
+ return 0;
+
+ err_free_device:
+ platform_device_put(ct82c710_device);
+ err_unregister_driver:
+ platform_driver_unregister(&ct82c710_driver);
+ return error;
+}
+
+static void __exit ct82c710_exit(void)
+{
+ platform_device_unregister(ct82c710_device);
+ platform_driver_unregister(&ct82c710_driver);
+}
+
+module_init(ct82c710_init);
+module_exit(ct82c710_exit);
diff --git a/drivers/input/serio/gscps2.c b/drivers/input/serio/gscps2.c
new file mode 100644
index 0000000..4225f5d
--- /dev/null
+++ b/drivers/input/serio/gscps2.c
@@ -0,0 +1,464 @@
+/*
+ * drivers/input/serio/gscps2.c
+ *
+ * Copyright (c) 2004-2006 Helge Deller <deller@gmx.de>
+ * Copyright (c) 2002 Laurent Canet <canetl@esiee.fr>
+ * Copyright (c) 2002 Thibaut Varene <varenet@parisc-linux.org>
+ *
+ * Pieces of code based on linux-2.4's hp_mouse.c & hp_keyb.c
+ * Copyright (c) 1999 Alex deVries <alex@onefishtwo.ca>
+ * Copyright (c) 1999-2000 Philipp Rumpf <prumpf@tux.org>
+ * Copyright (c) 2000 Xavier Debacker <debackex@esiee.fr>
+ * Copyright (c) 2000-2001 Thomas Marteau <marteaut@esiee.fr>
+ *
+ * HP GSC PS/2 port driver, found in PA/RISC Workstations
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * TODO:
+ * - Dino testing (did HP ever shipped a machine on which this port
+ * was usable/enabled ?)
+ */
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/serio.h>
+#include <linux/input.h>
+#include <linux/interrupt.h>
+#include <linux/spinlock.h>
+#include <linux/delay.h>
+#include <linux/ioport.h>
+#include <linux/pci_ids.h>
+
+#include <asm/irq.h>
+#include <asm/io.h>
+#include <asm/parisc-device.h>
+
+MODULE_AUTHOR("Laurent Canet <canetl@esiee.fr>, Thibaut Varene <varenet@parisc-linux.org>, Helge Deller <deller@gmx.de>");
+MODULE_DESCRIPTION("HP GSC PS2 port driver");
+MODULE_LICENSE("GPL");
+MODULE_DEVICE_TABLE(parisc, gscps2_device_tbl);
+
+#define PFX "gscps2.c: "
+
+/*
+ * Driver constants
+ */
+
+/* various constants */
+#define ENABLE 1
+#define DISABLE 0
+
+#define GSC_DINO_OFFSET 0x0800 /* offset for DINO controller versus LASI one */
+
+/* PS/2 IO port offsets */
+#define GSC_ID 0x00 /* device ID offset (see: GSC_ID_XXX) */
+#define GSC_RESET 0x00 /* reset port offset */
+#define GSC_RCVDATA 0x04 /* receive port offset */
+#define GSC_XMTDATA 0x04 /* transmit port offset */
+#define GSC_CONTROL 0x08 /* see: Control register bits */
+#define GSC_STATUS 0x0C /* see: Status register bits */
+
+/* Control register bits */
+#define GSC_CTRL_ENBL 0x01 /* enable interface */
+#define GSC_CTRL_LPBXR 0x02 /* loopback operation */
+#define GSC_CTRL_DIAG 0x20 /* directly control clock/data line */
+#define GSC_CTRL_DATDIR 0x40 /* data line direct control */
+#define GSC_CTRL_CLKDIR 0x80 /* clock line direct control */
+
+/* Status register bits */
+#define GSC_STAT_RBNE 0x01 /* Receive Buffer Not Empty */
+#define GSC_STAT_TBNE 0x02 /* Transmit Buffer Not Empty */
+#define GSC_STAT_TERR 0x04 /* Timeout Error */
+#define GSC_STAT_PERR 0x08 /* Parity Error */
+#define GSC_STAT_CMPINTR 0x10 /* Composite Interrupt = irq on any port */
+#define GSC_STAT_DATSHD 0x40 /* Data Line Shadow */
+#define GSC_STAT_CLKSHD 0x80 /* Clock Line Shadow */
+
+/* IDs returned by GSC_ID port register */
+#define GSC_ID_KEYBOARD 0 /* device ID values */
+#define GSC_ID_MOUSE 1
+
+
+static irqreturn_t gscps2_interrupt(int irq, void *dev);
+
+#define BUFFER_SIZE 0x0f
+
+/* GSC PS/2 port device struct */
+struct gscps2port {
+ struct list_head node;
+ struct parisc_device *padev;
+ struct serio *port;
+ spinlock_t lock;
+ char *addr;
+ u8 act, append; /* position in buffer[] */
+ struct {
+ u8 data;
+ u8 str;
+ } buffer[BUFFER_SIZE+1];
+ int id;
+};
+
+/*
+ * Various HW level routines
+ */
+
+#define gscps2_readb_input(x) readb((x)+GSC_RCVDATA)
+#define gscps2_readb_control(x) readb((x)+GSC_CONTROL)
+#define gscps2_readb_status(x) readb((x)+GSC_STATUS)
+#define gscps2_writeb_control(x, y) writeb((x), (y)+GSC_CONTROL)
+
+
+/*
+ * wait_TBE() - wait for Transmit Buffer Empty
+ */
+
+static int wait_TBE(char *addr)
+{
+ int timeout = 25000; /* device is expected to react within 250 msec */
+ while (gscps2_readb_status(addr) & GSC_STAT_TBNE) {
+ if (!--timeout)
+ return 0; /* This should not happen */
+ udelay(10);
+ }
+ return 1;
+}
+
+
+/*
+ * gscps2_flush() - flush the receive buffer
+ */
+
+static void gscps2_flush(struct gscps2port *ps2port)
+{
+ while (gscps2_readb_status(ps2port->addr) & GSC_STAT_RBNE)
+ gscps2_readb_input(ps2port->addr);
+ ps2port->act = ps2port->append = 0;
+}
+
+/*
+ * gscps2_writeb_output() - write a byte to the port
+ *
+ * returns 1 on success, 0 on error
+ */
+
+static inline int gscps2_writeb_output(struct gscps2port *ps2port, u8 data)
+{
+ unsigned long flags;
+ char *addr = ps2port->addr;
+
+ if (!wait_TBE(addr)) {
+ printk(KERN_DEBUG PFX "timeout - could not write byte %#x\n", data);
+ return 0;
+ }
+
+ while (gscps2_readb_status(ps2port->addr) & GSC_STAT_RBNE)
+ /* wait */;
+
+ spin_lock_irqsave(&ps2port->lock, flags);
+ writeb(data, addr+GSC_XMTDATA);
+ spin_unlock_irqrestore(&ps2port->lock, flags);
+
+ /* this is ugly, but due to timing of the port it seems to be necessary. */
+ mdelay(6);
+
+ /* make sure any received data is returned as fast as possible */
+ /* this is important e.g. when we set the LEDs on the keyboard */
+ gscps2_interrupt(0, NULL);
+
+ return 1;
+}
+
+
+/*
+ * gscps2_enable() - enables or disables the port
+ */
+
+static void gscps2_enable(struct gscps2port *ps2port, int enable)
+{
+ unsigned long flags;
+ u8 data;
+
+ /* now enable/disable the port */
+ spin_lock_irqsave(&ps2port->lock, flags);
+ gscps2_flush(ps2port);
+ data = gscps2_readb_control(ps2port->addr);
+ if (enable)
+ data |= GSC_CTRL_ENBL;
+ else
+ data &= ~GSC_CTRL_ENBL;
+ gscps2_writeb_control(data, ps2port->addr);
+ spin_unlock_irqrestore(&ps2port->lock, flags);
+ wait_TBE(ps2port->addr);
+ gscps2_flush(ps2port);
+}
+
+/*
+ * gscps2_reset() - resets the PS/2 port
+ */
+
+static void gscps2_reset(struct gscps2port *ps2port)
+{
+ char *addr = ps2port->addr;
+ unsigned long flags;
+
+ /* reset the interface */
+ spin_lock_irqsave(&ps2port->lock, flags);
+ gscps2_flush(ps2port);
+ writeb(0xff, addr+GSC_RESET);
+ gscps2_flush(ps2port);
+ spin_unlock_irqrestore(&ps2port->lock, flags);
+}
+
+static LIST_HEAD(ps2port_list);
+
+/**
+ * gscps2_interrupt() - Interruption service routine
+ *
+ * This function reads received PS/2 bytes and processes them on
+ * all interfaces.
+ * The problematic part here is, that the keyboard and mouse PS/2 port
+ * share the same interrupt and it's not possible to send data if any
+ * one of them holds input data. To solve this problem we try to receive
+ * the data as fast as possible and handle the reporting to the upper layer
+ * later.
+ */
+
+static irqreturn_t gscps2_interrupt(int irq, void *dev)
+{
+ struct gscps2port *ps2port;
+
+ list_for_each_entry(ps2port, &ps2port_list, node) {
+
+ unsigned long flags;
+ spin_lock_irqsave(&ps2port->lock, flags);
+
+ while ( (ps2port->buffer[ps2port->append].str =
+ gscps2_readb_status(ps2port->addr)) & GSC_STAT_RBNE ) {
+ ps2port->buffer[ps2port->append].data =
+ gscps2_readb_input(ps2port->addr);
+ ps2port->append = ((ps2port->append+1) & BUFFER_SIZE);
+ }
+
+ spin_unlock_irqrestore(&ps2port->lock, flags);
+
+ } /* list_for_each_entry */
+
+ /* all data was read from the ports - now report the data to upper layer */
+
+ list_for_each_entry(ps2port, &ps2port_list, node) {
+
+ while (ps2port->act != ps2port->append) {
+
+ unsigned int rxflags;
+ u8 data, status;
+
+ /* Did new data arrived while we read existing data ?
+ If yes, exit now and let the new irq handler start over again */
+ if (gscps2_readb_status(ps2port->addr) & GSC_STAT_CMPINTR)
+ return IRQ_HANDLED;
+
+ status = ps2port->buffer[ps2port->act].str;
+ data = ps2port->buffer[ps2port->act].data;
+
+ ps2port->act = ((ps2port->act+1) & BUFFER_SIZE);
+ rxflags = ((status & GSC_STAT_TERR) ? SERIO_TIMEOUT : 0 ) |
+ ((status & GSC_STAT_PERR) ? SERIO_PARITY : 0 );
+
+ serio_interrupt(ps2port->port, data, rxflags);
+
+ } /* while() */
+
+ } /* list_for_each_entry */
+
+ return IRQ_HANDLED;
+}
+
+
+/*
+ * gscps2_write() - send a byte out through the aux interface.
+ */
+
+static int gscps2_write(struct serio *port, unsigned char data)
+{
+ struct gscps2port *ps2port = port->port_data;
+
+ if (!gscps2_writeb_output(ps2port, data)) {
+ printk(KERN_DEBUG PFX "sending byte %#x failed.\n", data);
+ return -1;
+ }
+ return 0;
+}
+
+/*
+ * gscps2_open() is called when a port is opened by the higher layer.
+ * It resets and enables the port.
+ */
+
+static int gscps2_open(struct serio *port)
+{
+ struct gscps2port *ps2port = port->port_data;
+
+ gscps2_reset(ps2port);
+
+ /* enable it */
+ gscps2_enable(ps2port, ENABLE);
+
+ gscps2_interrupt(0, NULL);
+
+ return 0;
+}
+
+/*
+ * gscps2_close() disables the port
+ */
+
+static void gscps2_close(struct serio *port)
+{
+ struct gscps2port *ps2port = port->port_data;
+ gscps2_enable(ps2port, DISABLE);
+}
+
+/**
+ * gscps2_probe() - Probes PS2 devices
+ * @return: success/error report
+ */
+
+static int __devinit gscps2_probe(struct parisc_device *dev)
+{
+ struct gscps2port *ps2port;
+ struct serio *serio;
+ unsigned long hpa = dev->hpa.start;
+ int ret;
+
+ if (!dev->irq)
+ return -ENODEV;
+
+ /* Offset for DINO PS/2. Works with LASI even */
+ if (dev->id.sversion == 0x96)
+ hpa += GSC_DINO_OFFSET;
+
+ ps2port = kzalloc(sizeof(struct gscps2port), GFP_KERNEL);
+ serio = kzalloc(sizeof(struct serio), GFP_KERNEL);
+ if (!ps2port || !serio) {
+ ret = -ENOMEM;
+ goto fail_nomem;
+ }
+
+ dev_set_drvdata(&dev->dev, ps2port);
+
+ ps2port->port = serio;
+ ps2port->padev = dev;
+ ps2port->addr = ioremap_nocache(hpa, GSC_STATUS + 4);
+ spin_lock_init(&ps2port->lock);
+
+ gscps2_reset(ps2port);
+ ps2port->id = readb(ps2port->addr + GSC_ID) & 0x0f;
+
+ snprintf(serio->name, sizeof(serio->name), "gsc-ps2-%s",
+ (ps2port->id == GSC_ID_KEYBOARD) ? "keyboard" : "mouse");
+ strlcpy(serio->phys, dev_name(&dev->dev), sizeof(serio->phys));
+ serio->id.type = SERIO_8042;
+ serio->write = gscps2_write;
+ serio->open = gscps2_open;
+ serio->close = gscps2_close;
+ serio->port_data = ps2port;
+ serio->dev.parent = &dev->dev;
+
+ ret = -EBUSY;
+ if (request_irq(dev->irq, gscps2_interrupt, IRQF_SHARED, ps2port->port->name, ps2port))
+ goto fail_miserably;
+
+ if (ps2port->id != GSC_ID_KEYBOARD && ps2port->id != GSC_ID_MOUSE) {
+ printk(KERN_WARNING PFX "Unsupported PS/2 port at 0x%08lx (id=%d) ignored\n",
+ hpa, ps2port->id);
+ ret = -ENODEV;
+ goto fail;
+ }
+
+#if 0
+ if (!request_mem_region(hpa, GSC_STATUS + 4, ps2port->port.name))
+ goto fail;
+#endif
+
+ printk(KERN_INFO "serio: %s port at 0x%p irq %d @ %s\n",
+ ps2port->port->name,
+ ps2port->addr,
+ ps2port->padev->irq,
+ ps2port->port->phys);
+
+ serio_register_port(ps2port->port);
+
+ list_add_tail(&ps2port->node, &ps2port_list);
+
+ return 0;
+
+fail:
+ free_irq(dev->irq, ps2port);
+
+fail_miserably:
+ iounmap(ps2port->addr);
+ release_mem_region(dev->hpa.start, GSC_STATUS + 4);
+
+fail_nomem:
+ kfree(ps2port);
+ kfree(serio);
+ return ret;
+}
+
+/**
+ * gscps2_remove() - Removes PS2 devices
+ * @return: success/error report
+ */
+
+static int __devexit gscps2_remove(struct parisc_device *dev)
+{
+ struct gscps2port *ps2port = dev_get_drvdata(&dev->dev);
+
+ serio_unregister_port(ps2port->port);
+ free_irq(dev->irq, ps2port);
+ gscps2_flush(ps2port);
+ list_del(&ps2port->node);
+ iounmap(ps2port->addr);
+#if 0
+ release_mem_region(dev->hpa, GSC_STATUS + 4);
+#endif
+ dev_set_drvdata(&dev->dev, NULL);
+ kfree(ps2port);
+ return 0;
+}
+
+
+static struct parisc_device_id gscps2_device_tbl[] = {
+ { HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x00084 }, /* LASI PS/2 */
+#ifdef DINO_TESTED
+ { HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x00096 }, /* DINO PS/2 */
+#endif
+ { 0, } /* 0 terminated list */
+};
+
+static struct parisc_driver parisc_ps2_driver = {
+ .name = "gsc_ps2",
+ .id_table = gscps2_device_tbl,
+ .probe = gscps2_probe,
+ .remove = __devexit_p(gscps2_remove),
+};
+
+static int __init gscps2_init(void)
+{
+ register_parisc_driver(&parisc_ps2_driver);
+ return 0;
+}
+
+static void __exit gscps2_exit(void)
+{
+ unregister_parisc_driver(&parisc_ps2_driver);
+}
+
+
+module_init(gscps2_init);
+module_exit(gscps2_exit);
+
diff --git a/drivers/input/serio/hil_mlc.c b/drivers/input/serio/hil_mlc.c
new file mode 100644
index 0000000..bfd3865
--- /dev/null
+++ b/drivers/input/serio/hil_mlc.c
@@ -0,0 +1,1019 @@
+/*
+ * HIL MLC state machine and serio interface driver
+ *
+ * Copyright (c) 2001 Brian S. Julin
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL").
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ *
+ * References:
+ * HP-HIL Technical Reference Manual. Hewlett Packard Product No. 45918A
+ *
+ *
+ * Driver theory of operation:
+ *
+ * Some access methods and an ISR is defined by the sub-driver
+ * (e.g. hp_sdc_mlc.c). These methods are expected to provide a
+ * few bits of logic in addition to raw access to the HIL MLC,
+ * specifically, the ISR, which is entirely registered by the
+ * sub-driver and invoked directly, must check for record
+ * termination or packet match, at which point a semaphore must
+ * be cleared and then the hil_mlcs_tasklet must be scheduled.
+ *
+ * The hil_mlcs_tasklet processes the state machine for all MLCs
+ * each time it runs, checking each MLC's progress at the current
+ * node in the state machine, and moving the MLC to subsequent nodes
+ * in the state machine when appropriate. It will reschedule
+ * itself if output is pending. (This rescheduling should be replaced
+ * at some point with a sub-driver-specific mechanism.)
+ *
+ * A timer task prods the tasklet once per second to prevent
+ * hangups when attached devices do not return expected data
+ * and to initiate probes of the loop for new devices.
+ */
+
+#include <linux/hil_mlc.h>
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/slab.h>
+#include <linux/timer.h>
+#include <linux/list.h>
+
+MODULE_AUTHOR("Brian S. Julin <bri@calyx.com>");
+MODULE_DESCRIPTION("HIL MLC serio");
+MODULE_LICENSE("Dual BSD/GPL");
+
+EXPORT_SYMBOL(hil_mlc_register);
+EXPORT_SYMBOL(hil_mlc_unregister);
+
+#define PREFIX "HIL MLC: "
+
+static LIST_HEAD(hil_mlcs);
+static DEFINE_RWLOCK(hil_mlcs_lock);
+static struct timer_list hil_mlcs_kicker;
+static int hil_mlcs_probe;
+
+static void hil_mlcs_process(unsigned long unused);
+static DECLARE_TASKLET_DISABLED(hil_mlcs_tasklet, hil_mlcs_process, 0);
+
+
+/* #define HIL_MLC_DEBUG */
+
+/********************** Device info/instance management **********************/
+
+static void hil_mlc_clear_di_map(hil_mlc *mlc, int val)
+{
+ int j;
+
+ for (j = val; j < 7 ; j++)
+ mlc->di_map[j] = -1;
+}
+
+static void hil_mlc_clear_di_scratch(hil_mlc *mlc)
+{
+ memset(&mlc->di_scratch, 0, sizeof(mlc->di_scratch));
+}
+
+static void hil_mlc_copy_di_scratch(hil_mlc *mlc, int idx)
+{
+ memcpy(&mlc->di[idx], &mlc->di_scratch, sizeof(mlc->di_scratch));
+}
+
+static int hil_mlc_match_di_scratch(hil_mlc *mlc)
+{
+ int idx;
+
+ for (idx = 0; idx < HIL_MLC_DEVMEM; idx++) {
+ int j, found = 0;
+
+ /* In-use slots are not eligible. */
+ for (j = 0; j < 7 ; j++)
+ if (mlc->di_map[j] == idx)
+ found++;
+
+ if (found)
+ continue;
+
+ if (!memcmp(mlc->di + idx, &mlc->di_scratch,
+ sizeof(mlc->di_scratch)))
+ break;
+ }
+ return idx >= HIL_MLC_DEVMEM ? -1 : idx;
+}
+
+static int hil_mlc_find_free_di(hil_mlc *mlc)
+{
+ int idx;
+
+ /* TODO: Pick all-zero slots first, failing that,
+ * randomize the slot picked among those eligible.
+ */
+ for (idx = 0; idx < HIL_MLC_DEVMEM; idx++) {
+ int j, found = 0;
+
+ for (j = 0; j < 7 ; j++)
+ if (mlc->di_map[j] == idx)
+ found++;
+
+ if (!found)
+ break;
+ }
+
+ return idx; /* Note: It is guaranteed at least one above will match */
+}
+
+static inline void hil_mlc_clean_serio_map(hil_mlc *mlc)
+{
+ int idx;
+
+ for (idx = 0; idx < HIL_MLC_DEVMEM; idx++) {
+ int j, found = 0;
+
+ for (j = 0; j < 7 ; j++)
+ if (mlc->di_map[j] == idx)
+ found++;
+
+ if (!found)
+ mlc->serio_map[idx].di_revmap = -1;
+ }
+}
+
+static void hil_mlc_send_polls(hil_mlc *mlc)
+{
+ int did, i, cnt;
+ struct serio *serio;
+ struct serio_driver *drv;
+
+ i = cnt = 0;
+ did = (mlc->ipacket[0] & HIL_PKT_ADDR_MASK) >> 8;
+ serio = did ? mlc->serio[mlc->di_map[did - 1]] : NULL;
+ drv = (serio != NULL) ? serio->drv : NULL;
+
+ while (mlc->icount < 15 - i) {
+ hil_packet p;
+
+ p = mlc->ipacket[i];
+ if (did != (p & HIL_PKT_ADDR_MASK) >> 8) {
+ if (drv && drv->interrupt) {
+ drv->interrupt(serio, 0, 0);
+ drv->interrupt(serio, HIL_ERR_INT >> 16, 0);
+ drv->interrupt(serio, HIL_PKT_CMD >> 8, 0);
+ drv->interrupt(serio, HIL_CMD_POL + cnt, 0);
+ }
+
+ did = (p & HIL_PKT_ADDR_MASK) >> 8;
+ serio = did ? mlc->serio[mlc->di_map[did-1]] : NULL;
+ drv = (serio != NULL) ? serio->drv : NULL;
+ cnt = 0;
+ }
+
+ cnt++;
+ i++;
+
+ if (drv && drv->interrupt) {
+ drv->interrupt(serio, (p >> 24), 0);
+ drv->interrupt(serio, (p >> 16) & 0xff, 0);
+ drv->interrupt(serio, (p >> 8) & ~HIL_PKT_ADDR_MASK, 0);
+ drv->interrupt(serio, p & 0xff, 0);
+ }
+ }
+}
+
+/*************************** State engine *********************************/
+
+#define HILSEN_SCHED 0x000100 /* Schedule the tasklet */
+#define HILSEN_BREAK 0x000200 /* Wait until next pass */
+#define HILSEN_UP 0x000400 /* relative node#, decrement */
+#define HILSEN_DOWN 0x000800 /* relative node#, increment */
+#define HILSEN_FOLLOW 0x001000 /* use retval as next node# */
+
+#define HILSEN_MASK 0x0000ff
+#define HILSEN_START 0
+#define HILSEN_RESTART 1
+#define HILSEN_DHR 9
+#define HILSEN_DHR2 10
+#define HILSEN_IFC 14
+#define HILSEN_HEAL0 16
+#define HILSEN_HEAL 18
+#define HILSEN_ACF 21
+#define HILSEN_ACF2 22
+#define HILSEN_DISC0 25
+#define HILSEN_DISC 27
+#define HILSEN_MATCH 40
+#define HILSEN_OPERATE 41
+#define HILSEN_PROBE 44
+#define HILSEN_DSR 52
+#define HILSEN_REPOLL 55
+#define HILSEN_IFCACF 58
+#define HILSEN_END 60
+
+#define HILSEN_NEXT (HILSEN_DOWN | 1)
+#define HILSEN_SAME (HILSEN_DOWN | 0)
+#define HILSEN_LAST (HILSEN_UP | 1)
+
+#define HILSEN_DOZE (HILSEN_SAME | HILSEN_SCHED | HILSEN_BREAK)
+#define HILSEN_SLEEP (HILSEN_SAME | HILSEN_BREAK)
+
+static int hilse_match(hil_mlc *mlc, int unused)
+{
+ int rc;
+
+ rc = hil_mlc_match_di_scratch(mlc);
+ if (rc == -1) {
+ rc = hil_mlc_find_free_di(mlc);
+ if (rc == -1)
+ goto err;
+
+#ifdef HIL_MLC_DEBUG
+ printk(KERN_DEBUG PREFIX "new in slot %i\n", rc);
+#endif
+ hil_mlc_copy_di_scratch(mlc, rc);
+ mlc->di_map[mlc->ddi] = rc;
+ mlc->serio_map[rc].di_revmap = mlc->ddi;
+ hil_mlc_clean_serio_map(mlc);
+ serio_rescan(mlc->serio[rc]);
+ return -1;
+ }
+
+ mlc->di_map[mlc->ddi] = rc;
+#ifdef HIL_MLC_DEBUG
+ printk(KERN_DEBUG PREFIX "same in slot %i\n", rc);
+#endif
+ mlc->serio_map[rc].di_revmap = mlc->ddi;
+ hil_mlc_clean_serio_map(mlc);
+ return 0;
+
+ err:
+ printk(KERN_ERR PREFIX "Residual device slots exhausted, close some serios!\n");
+ return 1;
+}
+
+/* An LCV used to prevent runaway loops, forces 5 second sleep when reset. */
+static int hilse_init_lcv(hil_mlc *mlc, int unused)
+{
+ struct timeval tv;
+
+ do_gettimeofday(&tv);
+
+ if (mlc->lcv && (tv.tv_sec - mlc->lcv_tv.tv_sec) < 5)
+ return -1;
+
+ mlc->lcv_tv = tv;
+ mlc->lcv = 0;
+
+ return 0;
+}
+
+static int hilse_inc_lcv(hil_mlc *mlc, int lim)
+{
+ return mlc->lcv++ >= lim ? -1 : 0;
+}
+
+#if 0
+static int hilse_set_lcv(hil_mlc *mlc, int val)
+{
+ mlc->lcv = val;
+
+ return 0;
+}
+#endif
+
+/* Management of the discovered device index (zero based, -1 means no devs) */
+static int hilse_set_ddi(hil_mlc *mlc, int val)
+{
+ mlc->ddi = val;
+ hil_mlc_clear_di_map(mlc, val + 1);
+
+ return 0;
+}
+
+static int hilse_dec_ddi(hil_mlc *mlc, int unused)
+{
+ mlc->ddi--;
+ if (mlc->ddi <= -1) {
+ mlc->ddi = -1;
+ hil_mlc_clear_di_map(mlc, 0);
+ return -1;
+ }
+ hil_mlc_clear_di_map(mlc, mlc->ddi + 1);
+
+ return 0;
+}
+
+static int hilse_inc_ddi(hil_mlc *mlc, int unused)
+{
+ BUG_ON(mlc->ddi >= 6);
+ mlc->ddi++;
+
+ return 0;
+}
+
+static int hilse_take_idd(hil_mlc *mlc, int unused)
+{
+ int i;
+
+ /* Help the state engine:
+ * Is this a real IDD response or just an echo?
+ *
+ * Real IDD response does not start with a command.
+ */
+ if (mlc->ipacket[0] & HIL_PKT_CMD)
+ goto bail;
+
+ /* Should have the command echoed further down. */
+ for (i = 1; i < 16; i++) {
+ if (((mlc->ipacket[i] & HIL_PKT_ADDR_MASK) ==
+ (mlc->ipacket[0] & HIL_PKT_ADDR_MASK)) &&
+ (mlc->ipacket[i] & HIL_PKT_CMD) &&
+ ((mlc->ipacket[i] & HIL_PKT_DATA_MASK) == HIL_CMD_IDD))
+ break;
+ }
+ if (i > 15)
+ goto bail;
+
+ /* And the rest of the packets should still be clear. */
+ while (++i < 16)
+ if (mlc->ipacket[i])
+ break;
+
+ if (i < 16)
+ goto bail;
+
+ for (i = 0; i < 16; i++)
+ mlc->di_scratch.idd[i] =
+ mlc->ipacket[i] & HIL_PKT_DATA_MASK;
+
+ /* Next step is to see if RSC supported */
+ if (mlc->di_scratch.idd[1] & HIL_IDD_HEADER_RSC)
+ return HILSEN_NEXT;
+
+ if (mlc->di_scratch.idd[1] & HIL_IDD_HEADER_EXD)
+ return HILSEN_DOWN | 4;
+
+ return 0;
+
+ bail:
+ mlc->ddi--;
+
+ return -1; /* This should send us off to ACF */
+}
+
+static int hilse_take_rsc(hil_mlc *mlc, int unused)
+{
+ int i;
+
+ for (i = 0; i < 16; i++)
+ mlc->di_scratch.rsc[i] =
+ mlc->ipacket[i] & HIL_PKT_DATA_MASK;
+
+ /* Next step is to see if EXD supported (IDD has already been read) */
+ if (mlc->di_scratch.idd[1] & HIL_IDD_HEADER_EXD)
+ return HILSEN_NEXT;
+
+ return 0;
+}
+
+static int hilse_take_exd(hil_mlc *mlc, int unused)
+{
+ int i;
+
+ for (i = 0; i < 16; i++)
+ mlc->di_scratch.exd[i] =
+ mlc->ipacket[i] & HIL_PKT_DATA_MASK;
+
+ /* Next step is to see if RNM supported. */
+ if (mlc->di_scratch.exd[0] & HIL_EXD_HEADER_RNM)
+ return HILSEN_NEXT;
+
+ return 0;
+}
+
+static int hilse_take_rnm(hil_mlc *mlc, int unused)
+{
+ int i;
+
+ for (i = 0; i < 16; i++)
+ mlc->di_scratch.rnm[i] =
+ mlc->ipacket[i] & HIL_PKT_DATA_MASK;
+
+ printk(KERN_INFO PREFIX "Device name gotten: %16s\n",
+ mlc->di_scratch.rnm);
+
+ return 0;
+}
+
+static int hilse_operate(hil_mlc *mlc, int repoll)
+{
+
+ if (mlc->opercnt == 0)
+ hil_mlcs_probe = 0;
+ mlc->opercnt = 1;
+
+ hil_mlc_send_polls(mlc);
+
+ if (!hil_mlcs_probe)
+ return 0;
+ hil_mlcs_probe = 0;
+ mlc->opercnt = 0;
+ return 1;
+}
+
+#define FUNC(funct, funct_arg, zero_rc, neg_rc, pos_rc) \
+{ HILSE_FUNC, { .func = funct }, funct_arg, zero_rc, neg_rc, pos_rc },
+#define OUT(pack) \
+{ HILSE_OUT, { .packet = pack }, 0, HILSEN_NEXT, HILSEN_DOZE, 0 },
+#define CTS \
+{ HILSE_CTS, { .packet = 0 }, 0, HILSEN_NEXT | HILSEN_SCHED | HILSEN_BREAK, HILSEN_DOZE, 0 },
+#define EXPECT(comp, to, got, got_wrong, timed_out) \
+{ HILSE_EXPECT, { .packet = comp }, to, got, got_wrong, timed_out },
+#define EXPECT_LAST(comp, to, got, got_wrong, timed_out) \
+{ HILSE_EXPECT_LAST, { .packet = comp }, to, got, got_wrong, timed_out },
+#define EXPECT_DISC(comp, to, got, got_wrong, timed_out) \
+{ HILSE_EXPECT_DISC, { .packet = comp }, to, got, got_wrong, timed_out },
+#define IN(to, got, got_error, timed_out) \
+{ HILSE_IN, { .packet = 0 }, to, got, got_error, timed_out },
+#define OUT_DISC(pack) \
+{ HILSE_OUT_DISC, { .packet = pack }, 0, 0, 0, 0 },
+#define OUT_LAST(pack) \
+{ HILSE_OUT_LAST, { .packet = pack }, 0, 0, 0, 0 },
+
+static const struct hilse_node hil_mlc_se[HILSEN_END] = {
+
+ /* 0 HILSEN_START */
+ FUNC(hilse_init_lcv, 0, HILSEN_NEXT, HILSEN_SLEEP, 0)
+
+ /* 1 HILSEN_RESTART */
+ FUNC(hilse_inc_lcv, 10, HILSEN_NEXT, HILSEN_START, 0)
+ OUT(HIL_CTRL_ONLY) /* Disable APE */
+ CTS
+
+#define TEST_PACKET(x) \
+(HIL_PKT_CMD | (x << HIL_PKT_ADDR_SHIFT) | x << 4 | x)
+
+ OUT(HIL_DO_ALTER_CTRL | HIL_CTRL_TEST | TEST_PACKET(0x5))
+ EXPECT(HIL_ERR_INT | TEST_PACKET(0x5),
+ 2000, HILSEN_NEXT, HILSEN_RESTART, HILSEN_RESTART)
+ OUT(HIL_DO_ALTER_CTRL | HIL_CTRL_TEST | TEST_PACKET(0xa))
+ EXPECT(HIL_ERR_INT | TEST_PACKET(0xa),
+ 2000, HILSEN_NEXT, HILSEN_RESTART, HILSEN_RESTART)
+ OUT(HIL_CTRL_ONLY | 0) /* Disable test mode */
+
+ /* 9 HILSEN_DHR */
+ FUNC(hilse_init_lcv, 0, HILSEN_NEXT, HILSEN_SLEEP, 0)
+
+ /* 10 HILSEN_DHR2 */
+ FUNC(hilse_inc_lcv, 10, HILSEN_NEXT, HILSEN_START, 0)
+ FUNC(hilse_set_ddi, -1, HILSEN_NEXT, 0, 0)
+ OUT(HIL_PKT_CMD | HIL_CMD_DHR)
+ IN(300000, HILSEN_DHR2, HILSEN_DHR2, HILSEN_NEXT)
+
+ /* 14 HILSEN_IFC */
+ OUT(HIL_PKT_CMD | HIL_CMD_IFC)
+ EXPECT(HIL_PKT_CMD | HIL_CMD_IFC | HIL_ERR_INT,
+ 20000, HILSEN_DISC, HILSEN_DHR2, HILSEN_NEXT )
+
+ /* If devices are there, they weren't in PUP or other loopback mode.
+ * We're more concerned at this point with restoring operation
+ * to devices than discovering new ones, so we try to salvage
+ * the loop configuration by closing off the loop.
+ */
+
+ /* 16 HILSEN_HEAL0 */
+ FUNC(hilse_dec_ddi, 0, HILSEN_NEXT, HILSEN_ACF, 0)
+ FUNC(hilse_inc_ddi, 0, HILSEN_NEXT, 0, 0)
+
+ /* 18 HILSEN_HEAL */
+ OUT_LAST(HIL_CMD_ELB)
+ EXPECT_LAST(HIL_CMD_ELB | HIL_ERR_INT,
+ 20000, HILSEN_REPOLL, HILSEN_DSR, HILSEN_NEXT)
+ FUNC(hilse_dec_ddi, 0, HILSEN_HEAL, HILSEN_NEXT, 0)
+
+ /* 21 HILSEN_ACF */
+ FUNC(hilse_init_lcv, 0, HILSEN_NEXT, HILSEN_DOZE, 0)
+
+ /* 22 HILSEN_ACF2 */
+ FUNC(hilse_inc_lcv, 10, HILSEN_NEXT, HILSEN_START, 0)
+ OUT(HIL_PKT_CMD | HIL_CMD_ACF | 1)
+ IN(20000, HILSEN_NEXT, HILSEN_DSR, HILSEN_NEXT)
+
+ /* 25 HILSEN_DISC0 */
+ OUT_DISC(HIL_PKT_CMD | HIL_CMD_ELB)
+ EXPECT_DISC(HIL_PKT_CMD | HIL_CMD_ELB | HIL_ERR_INT,
+ 20000, HILSEN_NEXT, HILSEN_DSR, HILSEN_DSR)
+
+ /* Only enter here if response just received */
+ /* 27 HILSEN_DISC */
+ OUT_DISC(HIL_PKT_CMD | HIL_CMD_IDD)
+ EXPECT_DISC(HIL_PKT_CMD | HIL_CMD_IDD | HIL_ERR_INT,
+ 20000, HILSEN_NEXT, HILSEN_DSR, HILSEN_START)
+ FUNC(hilse_inc_ddi, 0, HILSEN_NEXT, HILSEN_START, 0)
+ FUNC(hilse_take_idd, 0, HILSEN_MATCH, HILSEN_IFCACF, HILSEN_FOLLOW)
+ OUT_LAST(HIL_PKT_CMD | HIL_CMD_RSC)
+ EXPECT_LAST(HIL_PKT_CMD | HIL_CMD_RSC | HIL_ERR_INT,
+ 30000, HILSEN_NEXT, HILSEN_DSR, HILSEN_DSR)
+ FUNC(hilse_take_rsc, 0, HILSEN_MATCH, 0, HILSEN_FOLLOW)
+ OUT_LAST(HIL_PKT_CMD | HIL_CMD_EXD)
+ EXPECT_LAST(HIL_PKT_CMD | HIL_CMD_EXD | HIL_ERR_INT,
+ 30000, HILSEN_NEXT, HILSEN_DSR, HILSEN_DSR)
+ FUNC(hilse_take_exd, 0, HILSEN_MATCH, 0, HILSEN_FOLLOW)
+ OUT_LAST(HIL_PKT_CMD | HIL_CMD_RNM)
+ EXPECT_LAST(HIL_PKT_CMD | HIL_CMD_RNM | HIL_ERR_INT,
+ 30000, HILSEN_NEXT, HILSEN_DSR, HILSEN_DSR)
+ FUNC(hilse_take_rnm, 0, HILSEN_MATCH, 0, 0)
+
+ /* 40 HILSEN_MATCH */
+ FUNC(hilse_match, 0, HILSEN_NEXT, HILSEN_NEXT, /* TODO */ 0)
+
+ /* 41 HILSEN_OPERATE */
+ OUT(HIL_PKT_CMD | HIL_CMD_POL)
+ EXPECT(HIL_PKT_CMD | HIL_CMD_POL | HIL_ERR_INT,
+ 20000, HILSEN_NEXT, HILSEN_DSR, HILSEN_NEXT)
+ FUNC(hilse_operate, 0, HILSEN_OPERATE, HILSEN_IFC, HILSEN_NEXT)
+
+ /* 44 HILSEN_PROBE */
+ OUT_LAST(HIL_PKT_CMD | HIL_CMD_EPT)
+ IN(10000, HILSEN_DISC, HILSEN_DSR, HILSEN_NEXT)
+ OUT_DISC(HIL_PKT_CMD | HIL_CMD_ELB)
+ IN(10000, HILSEN_DISC, HILSEN_DSR, HILSEN_NEXT)
+ OUT(HIL_PKT_CMD | HIL_CMD_ACF | 1)
+ IN(10000, HILSEN_DISC0, HILSEN_DSR, HILSEN_NEXT)
+ OUT_LAST(HIL_PKT_CMD | HIL_CMD_ELB)
+ IN(10000, HILSEN_OPERATE, HILSEN_DSR, HILSEN_DSR)
+
+ /* 52 HILSEN_DSR */
+ FUNC(hilse_set_ddi, -1, HILSEN_NEXT, 0, 0)
+ OUT(HIL_PKT_CMD | HIL_CMD_DSR)
+ IN(20000, HILSEN_DHR, HILSEN_DHR, HILSEN_IFC)
+
+ /* 55 HILSEN_REPOLL */
+ OUT(HIL_PKT_CMD | HIL_CMD_RPL)
+ EXPECT(HIL_PKT_CMD | HIL_CMD_RPL | HIL_ERR_INT,
+ 20000, HILSEN_NEXT, HILSEN_DSR, HILSEN_NEXT)
+ FUNC(hilse_operate, 1, HILSEN_OPERATE, HILSEN_IFC, HILSEN_PROBE)
+
+ /* 58 HILSEN_IFCACF */
+ OUT(HIL_PKT_CMD | HIL_CMD_IFC)
+ EXPECT(HIL_PKT_CMD | HIL_CMD_IFC | HIL_ERR_INT,
+ 20000, HILSEN_ACF2, HILSEN_DHR2, HILSEN_HEAL)
+
+ /* 60 HILSEN_END */
+};
+
+static inline void hilse_setup_input(hil_mlc *mlc, const struct hilse_node *node)
+{
+
+ switch (node->act) {
+ case HILSE_EXPECT_DISC:
+ mlc->imatch = node->object.packet;
+ mlc->imatch |= ((mlc->ddi + 2) << HIL_PKT_ADDR_SHIFT);
+ break;
+ case HILSE_EXPECT_LAST:
+ mlc->imatch = node->object.packet;
+ mlc->imatch |= ((mlc->ddi + 1) << HIL_PKT_ADDR_SHIFT);
+ break;
+ case HILSE_EXPECT:
+ mlc->imatch = node->object.packet;
+ break;
+ case HILSE_IN:
+ mlc->imatch = 0;
+ break;
+ default:
+ BUG();
+ }
+ mlc->istarted = 1;
+ mlc->intimeout = node->arg;
+ do_gettimeofday(&(mlc->instart));
+ mlc->icount = 15;
+ memset(mlc->ipacket, 0, 16 * sizeof(hil_packet));
+ BUG_ON(down_trylock(&mlc->isem));
+}
+
+#ifdef HIL_MLC_DEBUG
+static int doze;
+static int seidx; /* For debug */
+#endif
+
+static int hilse_donode(hil_mlc *mlc)
+{
+ const struct hilse_node *node;
+ int nextidx = 0;
+ int sched_long = 0;
+ unsigned long flags;
+
+#ifdef HIL_MLC_DEBUG
+ if (mlc->seidx && mlc->seidx != seidx &&
+ mlc->seidx != 41 && mlc->seidx != 42 && mlc->seidx != 43) {
+ printk(KERN_DEBUG PREFIX "z%i \n {%i}", doze, mlc->seidx);
+ doze = 0;
+ }
+
+ seidx = mlc->seidx;
+#endif
+ node = hil_mlc_se + mlc->seidx;
+
+ switch (node->act) {
+ int rc;
+ hil_packet pack;
+
+ case HILSE_FUNC:
+ BUG_ON(node->object.func == NULL);
+ rc = node->object.func(mlc, node->arg);
+ nextidx = (rc > 0) ? node->ugly :
+ ((rc < 0) ? node->bad : node->good);
+ if (nextidx == HILSEN_FOLLOW)
+ nextidx = rc;
+ break;
+
+ case HILSE_EXPECT_LAST:
+ case HILSE_EXPECT_DISC:
+ case HILSE_EXPECT:
+ case HILSE_IN:
+ /* Already set up from previous HILSE_OUT_* */
+ write_lock_irqsave(&mlc->lock, flags);
+ rc = mlc->in(mlc, node->arg);
+ if (rc == 2) {
+ nextidx = HILSEN_DOZE;
+ sched_long = 1;
+ write_unlock_irqrestore(&mlc->lock, flags);
+ break;
+ }
+ if (rc == 1)
+ nextidx = node->ugly;
+ else if (rc == 0)
+ nextidx = node->good;
+ else
+ nextidx = node->bad;
+ mlc->istarted = 0;
+ write_unlock_irqrestore(&mlc->lock, flags);
+ break;
+
+ case HILSE_OUT_LAST:
+ write_lock_irqsave(&mlc->lock, flags);
+ pack = node->object.packet;
+ pack |= ((mlc->ddi + 1) << HIL_PKT_ADDR_SHIFT);
+ goto out;
+
+ case HILSE_OUT_DISC:
+ write_lock_irqsave(&mlc->lock, flags);
+ pack = node->object.packet;
+ pack |= ((mlc->ddi + 2) << HIL_PKT_ADDR_SHIFT);
+ goto out;
+
+ case HILSE_OUT:
+ write_lock_irqsave(&mlc->lock, flags);
+ pack = node->object.packet;
+ out:
+ if (mlc->istarted)
+ goto out2;
+ /* Prepare to receive input */
+ if ((node + 1)->act & HILSE_IN)
+ hilse_setup_input(mlc, node + 1);
+
+ out2:
+ write_unlock_irqrestore(&mlc->lock, flags);
+
+ if (down_trylock(&mlc->osem)) {
+ nextidx = HILSEN_DOZE;
+ break;
+ }
+ up(&mlc->osem);
+
+ write_lock_irqsave(&mlc->lock, flags);
+ if (!mlc->ostarted) {
+ mlc->ostarted = 1;
+ mlc->opacket = pack;
+ mlc->out(mlc);
+ nextidx = HILSEN_DOZE;
+ write_unlock_irqrestore(&mlc->lock, flags);
+ break;
+ }
+ mlc->ostarted = 0;
+ do_gettimeofday(&(mlc->instart));
+ write_unlock_irqrestore(&mlc->lock, flags);
+ nextidx = HILSEN_NEXT;
+ break;
+
+ case HILSE_CTS:
+ write_lock_irqsave(&mlc->lock, flags);
+ nextidx = mlc->cts(mlc) ? node->bad : node->good;
+ write_unlock_irqrestore(&mlc->lock, flags);
+ break;
+
+ default:
+ BUG();
+ }
+
+#ifdef HIL_MLC_DEBUG
+ if (nextidx == HILSEN_DOZE)
+ doze++;
+#endif
+
+ while (nextidx & HILSEN_SCHED) {
+ struct timeval tv;
+
+ if (!sched_long)
+ goto sched;
+
+ do_gettimeofday(&tv);
+ tv.tv_usec += USEC_PER_SEC * (tv.tv_sec - mlc->instart.tv_sec);
+ tv.tv_usec -= mlc->instart.tv_usec;
+ if (tv.tv_usec >= mlc->intimeout) goto sched;
+ tv.tv_usec = (mlc->intimeout - tv.tv_usec) * HZ / USEC_PER_SEC;
+ if (!tv.tv_usec) goto sched;
+ mod_timer(&hil_mlcs_kicker, jiffies + tv.tv_usec);
+ break;
+ sched:
+ tasklet_schedule(&hil_mlcs_tasklet);
+ break;
+ }
+
+ if (nextidx & HILSEN_DOWN)
+ mlc->seidx += nextidx & HILSEN_MASK;
+ else if (nextidx & HILSEN_UP)
+ mlc->seidx -= nextidx & HILSEN_MASK;
+ else
+ mlc->seidx = nextidx & HILSEN_MASK;
+
+ if (nextidx & HILSEN_BREAK)
+ return 1;
+
+ return 0;
+}
+
+/******************** tasklet context functions **************************/
+static void hil_mlcs_process(unsigned long unused)
+{
+ struct list_head *tmp;
+
+ read_lock(&hil_mlcs_lock);
+ list_for_each(tmp, &hil_mlcs) {
+ struct hil_mlc *mlc = list_entry(tmp, hil_mlc, list);
+ while (hilse_donode(mlc) == 0) {
+#ifdef HIL_MLC_DEBUG
+ if (mlc->seidx != 41 &&
+ mlc->seidx != 42 &&
+ mlc->seidx != 43)
+ printk(KERN_DEBUG PREFIX " + ");
+#endif
+ }
+ }
+ read_unlock(&hil_mlcs_lock);
+}
+
+/************************* Keepalive timer task *********************/
+
+static void hil_mlcs_timer(unsigned long data)
+{
+ hil_mlcs_probe = 1;
+ tasklet_schedule(&hil_mlcs_tasklet);
+ /* Re-insert the periodic task. */
+ if (!timer_pending(&hil_mlcs_kicker))
+ mod_timer(&hil_mlcs_kicker, jiffies + HZ);
+}
+
+/******************** user/kernel context functions **********************/
+
+static int hil_mlc_serio_write(struct serio *serio, unsigned char c)
+{
+ struct hil_mlc_serio_map *map;
+ struct hil_mlc *mlc;
+ struct serio_driver *drv;
+ uint8_t *idx, *last;
+
+ map = serio->port_data;
+ BUG_ON(map == NULL);
+
+ mlc = map->mlc;
+ BUG_ON(mlc == NULL);
+
+ mlc->serio_opacket[map->didx] |=
+ ((hil_packet)c) << (8 * (3 - mlc->serio_oidx[map->didx]));
+
+ if (mlc->serio_oidx[map->didx] >= 3) {
+ /* for now only commands */
+ if (!(mlc->serio_opacket[map->didx] & HIL_PKT_CMD))
+ return -EIO;
+ switch (mlc->serio_opacket[map->didx] & HIL_PKT_DATA_MASK) {
+ case HIL_CMD_IDD:
+ idx = mlc->di[map->didx].idd;
+ goto emu;
+ case HIL_CMD_RSC:
+ idx = mlc->di[map->didx].rsc;
+ goto emu;
+ case HIL_CMD_EXD:
+ idx = mlc->di[map->didx].exd;
+ goto emu;
+ case HIL_CMD_RNM:
+ idx = mlc->di[map->didx].rnm;
+ goto emu;
+ default:
+ break;
+ }
+ mlc->serio_oidx[map->didx] = 0;
+ mlc->serio_opacket[map->didx] = 0;
+ }
+
+ mlc->serio_oidx[map->didx]++;
+ return -EIO;
+ emu:
+ drv = serio->drv;
+ BUG_ON(drv == NULL);
+
+ last = idx + 15;
+ while ((last != idx) && (*last == 0))
+ last--;
+
+ while (idx != last) {
+ drv->interrupt(serio, 0, 0);
+ drv->interrupt(serio, HIL_ERR_INT >> 16, 0);
+ drv->interrupt(serio, 0, 0);
+ drv->interrupt(serio, *idx, 0);
+ idx++;
+ }
+ drv->interrupt(serio, 0, 0);
+ drv->interrupt(serio, HIL_ERR_INT >> 16, 0);
+ drv->interrupt(serio, HIL_PKT_CMD >> 8, 0);
+ drv->interrupt(serio, *idx, 0);
+
+ mlc->serio_oidx[map->didx] = 0;
+ mlc->serio_opacket[map->didx] = 0;
+
+ return 0;
+}
+
+static int hil_mlc_serio_open(struct serio *serio)
+{
+ struct hil_mlc_serio_map *map;
+ struct hil_mlc *mlc;
+
+ if (serio_get_drvdata(serio) != NULL)
+ return -EBUSY;
+
+ map = serio->port_data;
+ BUG_ON(map == NULL);
+
+ mlc = map->mlc;
+ BUG_ON(mlc == NULL);
+
+ return 0;
+}
+
+static void hil_mlc_serio_close(struct serio *serio)
+{
+ struct hil_mlc_serio_map *map;
+ struct hil_mlc *mlc;
+
+ map = serio->port_data;
+ BUG_ON(map == NULL);
+
+ mlc = map->mlc;
+ BUG_ON(mlc == NULL);
+
+ serio_set_drvdata(serio, NULL);
+ serio->drv = NULL;
+ /* TODO wake up interruptable */
+}
+
+static const struct serio_device_id hil_mlc_serio_id = {
+ .type = SERIO_HIL_MLC,
+ .proto = SERIO_HIL,
+ .extra = SERIO_ANY,
+ .id = SERIO_ANY,
+};
+
+int hil_mlc_register(hil_mlc *mlc)
+{
+ int i;
+ unsigned long flags;
+
+ BUG_ON(mlc == NULL);
+
+ mlc->istarted = 0;
+ mlc->ostarted = 0;
+
+ rwlock_init(&mlc->lock);
+ sema_init(&mlc->osem, 1);
+
+ sema_init(&mlc->isem, 1);
+ mlc->icount = -1;
+ mlc->imatch = 0;
+
+ mlc->opercnt = 0;
+
+ sema_init(&(mlc->csem), 0);
+
+ hil_mlc_clear_di_scratch(mlc);
+ hil_mlc_clear_di_map(mlc, 0);
+ for (i = 0; i < HIL_MLC_DEVMEM; i++) {
+ struct serio *mlc_serio;
+ hil_mlc_copy_di_scratch(mlc, i);
+ mlc_serio = kzalloc(sizeof(*mlc_serio), GFP_KERNEL);
+ mlc->serio[i] = mlc_serio;
+ if (!mlc->serio[i]) {
+ for (; i >= 0; i--)
+ kfree(mlc->serio[i]);
+ return -ENOMEM;
+ }
+ snprintf(mlc_serio->name, sizeof(mlc_serio->name)-1, "HIL_SERIO%d", i);
+ snprintf(mlc_serio->phys, sizeof(mlc_serio->phys)-1, "HIL%d", i);
+ mlc_serio->id = hil_mlc_serio_id;
+ mlc_serio->id.id = i; /* HIL port no. */
+ mlc_serio->write = hil_mlc_serio_write;
+ mlc_serio->open = hil_mlc_serio_open;
+ mlc_serio->close = hil_mlc_serio_close;
+ mlc_serio->port_data = &(mlc->serio_map[i]);
+ mlc->serio_map[i].mlc = mlc;
+ mlc->serio_map[i].didx = i;
+ mlc->serio_map[i].di_revmap = -1;
+ mlc->serio_opacket[i] = 0;
+ mlc->serio_oidx[i] = 0;
+ serio_register_port(mlc_serio);
+ }
+
+ mlc->tasklet = &hil_mlcs_tasklet;
+
+ write_lock_irqsave(&hil_mlcs_lock, flags);
+ list_add_tail(&mlc->list, &hil_mlcs);
+ mlc->seidx = HILSEN_START;
+ write_unlock_irqrestore(&hil_mlcs_lock, flags);
+
+ tasklet_schedule(&hil_mlcs_tasklet);
+ return 0;
+}
+
+int hil_mlc_unregister(hil_mlc *mlc)
+{
+ struct list_head *tmp;
+ unsigned long flags;
+ int i;
+
+ BUG_ON(mlc == NULL);
+
+ write_lock_irqsave(&hil_mlcs_lock, flags);
+ list_for_each(tmp, &hil_mlcs)
+ if (list_entry(tmp, hil_mlc, list) == mlc)
+ goto found;
+
+ /* not found in list */
+ write_unlock_irqrestore(&hil_mlcs_lock, flags);
+ tasklet_schedule(&hil_mlcs_tasklet);
+ return -ENODEV;
+
+ found:
+ list_del(tmp);
+ write_unlock_irqrestore(&hil_mlcs_lock, flags);
+
+ for (i = 0; i < HIL_MLC_DEVMEM; i++) {
+ serio_unregister_port(mlc->serio[i]);
+ mlc->serio[i] = NULL;
+ }
+
+ tasklet_schedule(&hil_mlcs_tasklet);
+ return 0;
+}
+
+/**************************** Module interface *************************/
+
+static int __init hil_mlc_init(void)
+{
+ setup_timer(&hil_mlcs_kicker, &hil_mlcs_timer, 0);
+ mod_timer(&hil_mlcs_kicker, jiffies + HZ);
+
+ tasklet_enable(&hil_mlcs_tasklet);
+
+ return 0;
+}
+
+static void __exit hil_mlc_exit(void)
+{
+ del_timer_sync(&hil_mlcs_kicker);
+
+ tasklet_disable(&hil_mlcs_tasklet);
+ tasklet_kill(&hil_mlcs_tasklet);
+}
+
+module_init(hil_mlc_init);
+module_exit(hil_mlc_exit);
diff --git a/drivers/input/serio/hp_sdc.c b/drivers/input/serio/hp_sdc.c
new file mode 100644
index 0000000..979c443
--- /dev/null
+++ b/drivers/input/serio/hp_sdc.c
@@ -0,0 +1,1136 @@
+/*
+ * HP i8042-based System Device Controller driver.
+ *
+ * Copyright (c) 2001 Brian S. Julin
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL").
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ *
+ * References:
+ * System Device Controller Microprocessor Firmware Theory of Operation
+ * for Part Number 1820-4784 Revision B. Dwg No. A-1820-4784-2
+ * Helge Deller's original hilkbd.c port for PA-RISC.
+ *
+ *
+ * Driver theory of operation:
+ *
+ * hp_sdc_put does all writing to the SDC. ISR can run on a different
+ * CPU than hp_sdc_put, but only one CPU runs hp_sdc_put at a time
+ * (it cannot really benefit from SMP anyway.) A tasket fit this perfectly.
+ *
+ * All data coming back from the SDC is sent via interrupt and can be read
+ * fully in the ISR, so there are no latency/throughput problems there.
+ * The problem is with output, due to the slow clock speed of the SDC
+ * compared to the CPU. This should not be too horrible most of the time,
+ * but if used with HIL devices that support the multibyte transfer command,
+ * keeping outbound throughput flowing at the 6500KBps that the HIL is
+ * capable of is more than can be done at HZ=100.
+ *
+ * Busy polling for IBF clear wastes CPU cycles and bus cycles. hp_sdc.ibf
+ * is set to 0 when the IBF flag in the status register has cleared. ISR
+ * may do this, and may also access the parts of queued transactions related
+ * to reading data back from the SDC, but otherwise will not touch the
+ * hp_sdc state. Whenever a register is written hp_sdc.ibf is set to 1.
+ *
+ * The i8042 write index and the values in the 4-byte input buffer
+ * starting at 0x70 are kept track of in hp_sdc.wi, and .r7[], respectively,
+ * to minimize the amount of IO needed to the SDC. However these values
+ * do not need to be locked since they are only ever accessed by hp_sdc_put.
+ *
+ * A timer task schedules the tasklet once per second just to make
+ * sure it doesn't freeze up and to allow for bad reads to time out.
+ */
+
+#include <linux/hp_sdc.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/ioport.h>
+#include <linux/time.h>
+#include <linux/semaphore.h>
+#include <linux/slab.h>
+#include <linux/hil.h>
+#include <asm/io.h>
+#include <asm/system.h>
+
+/* Machine-specific abstraction */
+
+#if defined(__hppa__)
+# include <asm/parisc-device.h>
+# define sdc_readb(p) gsc_readb(p)
+# define sdc_writeb(v,p) gsc_writeb((v),(p))
+#elif defined(__mc68000__)
+# include <asm/uaccess.h>
+# define sdc_readb(p) in_8(p)
+# define sdc_writeb(v,p) out_8((p),(v))
+#else
+# error "HIL is not supported on this platform"
+#endif
+
+#define PREFIX "HP SDC: "
+
+MODULE_AUTHOR("Brian S. Julin <bri@calyx.com>");
+MODULE_DESCRIPTION("HP i8042-based SDC Driver");
+MODULE_LICENSE("Dual BSD/GPL");
+
+EXPORT_SYMBOL(hp_sdc_request_timer_irq);
+EXPORT_SYMBOL(hp_sdc_request_hil_irq);
+EXPORT_SYMBOL(hp_sdc_request_cooked_irq);
+
+EXPORT_SYMBOL(hp_sdc_release_timer_irq);
+EXPORT_SYMBOL(hp_sdc_release_hil_irq);
+EXPORT_SYMBOL(hp_sdc_release_cooked_irq);
+
+EXPORT_SYMBOL(__hp_sdc_enqueue_transaction);
+EXPORT_SYMBOL(hp_sdc_enqueue_transaction);
+EXPORT_SYMBOL(hp_sdc_dequeue_transaction);
+
+static unsigned int hp_sdc_disabled;
+module_param_named(no_hpsdc, hp_sdc_disabled, bool, 0);
+MODULE_PARM_DESC(no_hpsdc, "Do not enable HP SDC driver.");
+
+static hp_i8042_sdc hp_sdc; /* All driver state is kept in here. */
+
+/*************** primitives for use in any context *********************/
+static inline uint8_t hp_sdc_status_in8(void)
+{
+ uint8_t status;
+ unsigned long flags;
+
+ write_lock_irqsave(&hp_sdc.ibf_lock, flags);
+ status = sdc_readb(hp_sdc.status_io);
+ if (!(status & HP_SDC_STATUS_IBF))
+ hp_sdc.ibf = 0;
+ write_unlock_irqrestore(&hp_sdc.ibf_lock, flags);
+
+ return status;
+}
+
+static inline uint8_t hp_sdc_data_in8(void)
+{
+ return sdc_readb(hp_sdc.data_io);
+}
+
+static inline void hp_sdc_status_out8(uint8_t val)
+{
+ unsigned long flags;
+
+ write_lock_irqsave(&hp_sdc.ibf_lock, flags);
+ hp_sdc.ibf = 1;
+ if ((val & 0xf0) == 0xe0)
+ hp_sdc.wi = 0xff;
+ sdc_writeb(val, hp_sdc.status_io);
+ write_unlock_irqrestore(&hp_sdc.ibf_lock, flags);
+}
+
+static inline void hp_sdc_data_out8(uint8_t val)
+{
+ unsigned long flags;
+
+ write_lock_irqsave(&hp_sdc.ibf_lock, flags);
+ hp_sdc.ibf = 1;
+ sdc_writeb(val, hp_sdc.data_io);
+ write_unlock_irqrestore(&hp_sdc.ibf_lock, flags);
+}
+
+/* Care must be taken to only invoke hp_sdc_spin_ibf when
+ * absolutely needed, or in rarely invoked subroutines.
+ * Not only does it waste CPU cycles, it also wastes bus cycles.
+ */
+static inline void hp_sdc_spin_ibf(void)
+{
+ unsigned long flags;
+ rwlock_t *lock;
+
+ lock = &hp_sdc.ibf_lock;
+
+ read_lock_irqsave(lock, flags);
+ if (!hp_sdc.ibf) {
+ read_unlock_irqrestore(lock, flags);
+ return;
+ }
+ read_unlock(lock);
+ write_lock(lock);
+ while (sdc_readb(hp_sdc.status_io) & HP_SDC_STATUS_IBF)
+ { }
+ hp_sdc.ibf = 0;
+ write_unlock_irqrestore(lock, flags);
+}
+
+
+/************************ Interrupt context functions ************************/
+static void hp_sdc_take(int irq, void *dev_id, uint8_t status, uint8_t data)
+{
+ hp_sdc_transaction *curr;
+
+ read_lock(&hp_sdc.rtq_lock);
+ if (hp_sdc.rcurr < 0) {
+ read_unlock(&hp_sdc.rtq_lock);
+ return;
+ }
+ curr = hp_sdc.tq[hp_sdc.rcurr];
+ read_unlock(&hp_sdc.rtq_lock);
+
+ curr->seq[curr->idx++] = status;
+ curr->seq[curr->idx++] = data;
+ hp_sdc.rqty -= 2;
+ do_gettimeofday(&hp_sdc.rtv);
+
+ if (hp_sdc.rqty <= 0) {
+ /* All data has been gathered. */
+ if (curr->seq[curr->actidx] & HP_SDC_ACT_SEMAPHORE)
+ if (curr->act.semaphore)
+ up(curr->act.semaphore);
+
+ if (curr->seq[curr->actidx] & HP_SDC_ACT_CALLBACK)
+ if (curr->act.irqhook)
+ curr->act.irqhook(irq, dev_id, status, data);
+
+ curr->actidx = curr->idx;
+ curr->idx++;
+ /* Return control of this transaction */
+ write_lock(&hp_sdc.rtq_lock);
+ hp_sdc.rcurr = -1;
+ hp_sdc.rqty = 0;
+ write_unlock(&hp_sdc.rtq_lock);
+ tasklet_schedule(&hp_sdc.task);
+ }
+}
+
+static irqreturn_t hp_sdc_isr(int irq, void *dev_id)
+{
+ uint8_t status, data;
+
+ status = hp_sdc_status_in8();
+ /* Read data unconditionally to advance i8042. */
+ data = hp_sdc_data_in8();
+
+ /* For now we are ignoring these until we get the SDC to behave. */
+ if (((status & 0xf1) == 0x51) && data == 0x82)
+ return IRQ_HANDLED;
+
+ switch (status & HP_SDC_STATUS_IRQMASK) {
+ case 0: /* This case is not documented. */
+ break;
+
+ case HP_SDC_STATUS_USERTIMER:
+ case HP_SDC_STATUS_PERIODIC:
+ case HP_SDC_STATUS_TIMER:
+ read_lock(&hp_sdc.hook_lock);
+ if (hp_sdc.timer != NULL)
+ hp_sdc.timer(irq, dev_id, status, data);
+ read_unlock(&hp_sdc.hook_lock);
+ break;
+
+ case HP_SDC_STATUS_REG:
+ hp_sdc_take(irq, dev_id, status, data);
+ break;
+
+ case HP_SDC_STATUS_HILCMD:
+ case HP_SDC_STATUS_HILDATA:
+ read_lock(&hp_sdc.hook_lock);
+ if (hp_sdc.hil != NULL)
+ hp_sdc.hil(irq, dev_id, status, data);
+ read_unlock(&hp_sdc.hook_lock);
+ break;
+
+ case HP_SDC_STATUS_PUP:
+ read_lock(&hp_sdc.hook_lock);
+ if (hp_sdc.pup != NULL)
+ hp_sdc.pup(irq, dev_id, status, data);
+ else
+ printk(KERN_INFO PREFIX "HP SDC reports successful PUP.\n");
+ read_unlock(&hp_sdc.hook_lock);
+ break;
+
+ default:
+ read_lock(&hp_sdc.hook_lock);
+ if (hp_sdc.cooked != NULL)
+ hp_sdc.cooked(irq, dev_id, status, data);
+ read_unlock(&hp_sdc.hook_lock);
+ break;
+ }
+
+ return IRQ_HANDLED;
+}
+
+
+static irqreturn_t hp_sdc_nmisr(int irq, void *dev_id)
+{
+ int status;
+
+ status = hp_sdc_status_in8();
+ printk(KERN_WARNING PREFIX "NMI !\n");
+
+#if 0
+ if (status & HP_SDC_NMISTATUS_FHS) {
+ read_lock(&hp_sdc.hook_lock);
+ if (hp_sdc.timer != NULL)
+ hp_sdc.timer(irq, dev_id, status, 0);
+ read_unlock(&hp_sdc.hook_lock);
+ } else {
+ /* TODO: pass this on to the HIL handler, or do SAK here? */
+ printk(KERN_WARNING PREFIX "HIL NMI\n");
+ }
+#endif
+
+ return IRQ_HANDLED;
+}
+
+
+/***************** Kernel (tasklet) context functions ****************/
+
+unsigned long hp_sdc_put(void);
+
+static void hp_sdc_tasklet(unsigned long foo)
+{
+ write_lock_irq(&hp_sdc.rtq_lock);
+
+ if (hp_sdc.rcurr >= 0) {
+ struct timeval tv;
+
+ do_gettimeofday(&tv);
+ if (tv.tv_sec > hp_sdc.rtv.tv_sec)
+ tv.tv_usec += USEC_PER_SEC;
+
+ if (tv.tv_usec - hp_sdc.rtv.tv_usec > HP_SDC_MAX_REG_DELAY) {
+ hp_sdc_transaction *curr;
+ uint8_t tmp;
+
+ curr = hp_sdc.tq[hp_sdc.rcurr];
+ /* If this turns out to be a normal failure mode
+ * we'll need to figure out a way to communicate
+ * it back to the application. and be less verbose.
+ */
+ printk(KERN_WARNING PREFIX "read timeout (%ius)!\n",
+ (int)(tv.tv_usec - hp_sdc.rtv.tv_usec));
+ curr->idx += hp_sdc.rqty;
+ hp_sdc.rqty = 0;
+ tmp = curr->seq[curr->actidx];
+ curr->seq[curr->actidx] |= HP_SDC_ACT_DEAD;
+ if (tmp & HP_SDC_ACT_SEMAPHORE)
+ if (curr->act.semaphore)
+ up(curr->act.semaphore);
+
+ if (tmp & HP_SDC_ACT_CALLBACK) {
+ /* Note this means that irqhooks may be called
+ * in tasklet/bh context.
+ */
+ if (curr->act.irqhook)
+ curr->act.irqhook(0, NULL, 0, 0);
+ }
+
+ curr->actidx = curr->idx;
+ curr->idx++;
+ hp_sdc.rcurr = -1;
+ }
+ }
+ write_unlock_irq(&hp_sdc.rtq_lock);
+ hp_sdc_put();
+}
+
+unsigned long hp_sdc_put(void)
+{
+ hp_sdc_transaction *curr;
+ uint8_t act;
+ int idx, curridx;
+
+ int limit = 0;
+
+ write_lock(&hp_sdc.lock);
+
+ /* If i8042 buffers are full, we cannot do anything that
+ requires output, so we skip to the administrativa. */
+ if (hp_sdc.ibf) {
+ hp_sdc_status_in8();
+ if (hp_sdc.ibf)
+ goto finish;
+ }
+
+ anew:
+ /* See if we are in the middle of a sequence. */
+ if (hp_sdc.wcurr < 0)
+ hp_sdc.wcurr = 0;
+ read_lock_irq(&hp_sdc.rtq_lock);
+ if (hp_sdc.rcurr == hp_sdc.wcurr)
+ hp_sdc.wcurr++;
+ read_unlock_irq(&hp_sdc.rtq_lock);
+ if (hp_sdc.wcurr >= HP_SDC_QUEUE_LEN)
+ hp_sdc.wcurr = 0;
+ curridx = hp_sdc.wcurr;
+
+ if (hp_sdc.tq[curridx] != NULL)
+ goto start;
+
+ while (++curridx != hp_sdc.wcurr) {
+ if (curridx >= HP_SDC_QUEUE_LEN) {
+ curridx = -1; /* Wrap to top */
+ continue;
+ }
+ read_lock_irq(&hp_sdc.rtq_lock);
+ if (hp_sdc.rcurr == curridx) {
+ read_unlock_irq(&hp_sdc.rtq_lock);
+ continue;
+ }
+ read_unlock_irq(&hp_sdc.rtq_lock);
+ if (hp_sdc.tq[curridx] != NULL)
+ break; /* Found one. */
+ }
+ if (curridx == hp_sdc.wcurr) { /* There's nothing queued to do. */
+ curridx = -1;
+ }
+ hp_sdc.wcurr = curridx;
+
+ start:
+
+ /* Check to see if the interrupt mask needs to be set. */
+ if (hp_sdc.set_im) {
+ hp_sdc_status_out8(hp_sdc.im | HP_SDC_CMD_SET_IM);
+ hp_sdc.set_im = 0;
+ goto finish;
+ }
+
+ if (hp_sdc.wcurr == -1)
+ goto done;
+
+ curr = hp_sdc.tq[curridx];
+ idx = curr->actidx;
+
+ if (curr->actidx >= curr->endidx) {
+ hp_sdc.tq[curridx] = NULL;
+ /* Interleave outbound data between the transactions. */
+ hp_sdc.wcurr++;
+ if (hp_sdc.wcurr >= HP_SDC_QUEUE_LEN)
+ hp_sdc.wcurr = 0;
+ goto finish;
+ }
+
+ act = curr->seq[idx];
+ idx++;
+
+ if (curr->idx >= curr->endidx) {
+ if (act & HP_SDC_ACT_DEALLOC)
+ kfree(curr);
+ hp_sdc.tq[curridx] = NULL;
+ /* Interleave outbound data between the transactions. */
+ hp_sdc.wcurr++;
+ if (hp_sdc.wcurr >= HP_SDC_QUEUE_LEN)
+ hp_sdc.wcurr = 0;
+ goto finish;
+ }
+
+ while (act & HP_SDC_ACT_PRECMD) {
+ if (curr->idx != idx) {
+ idx++;
+ act &= ~HP_SDC_ACT_PRECMD;
+ break;
+ }
+ hp_sdc_status_out8(curr->seq[idx]);
+ curr->idx++;
+ /* act finished? */
+ if ((act & HP_SDC_ACT_DURING) == HP_SDC_ACT_PRECMD)
+ goto actdone;
+ /* skip quantity field if data-out sequence follows. */
+ if (act & HP_SDC_ACT_DATAOUT)
+ curr->idx++;
+ goto finish;
+ }
+ if (act & HP_SDC_ACT_DATAOUT) {
+ int qty;
+
+ qty = curr->seq[idx];
+ idx++;
+ if (curr->idx - idx < qty) {
+ hp_sdc_data_out8(curr->seq[curr->idx]);
+ curr->idx++;
+ /* act finished? */
+ if (curr->idx - idx >= qty &&
+ (act & HP_SDC_ACT_DURING) == HP_SDC_ACT_DATAOUT)
+ goto actdone;
+ goto finish;
+ }
+ idx += qty;
+ act &= ~HP_SDC_ACT_DATAOUT;
+ } else
+ while (act & HP_SDC_ACT_DATAREG) {
+ int mask;
+ uint8_t w7[4];
+
+ mask = curr->seq[idx];
+ if (idx != curr->idx) {
+ idx++;
+ idx += !!(mask & 1);
+ idx += !!(mask & 2);
+ idx += !!(mask & 4);
+ idx += !!(mask & 8);
+ act &= ~HP_SDC_ACT_DATAREG;
+ break;
+ }
+
+ w7[0] = (mask & 1) ? curr->seq[++idx] : hp_sdc.r7[0];
+ w7[1] = (mask & 2) ? curr->seq[++idx] : hp_sdc.r7[1];
+ w7[2] = (mask & 4) ? curr->seq[++idx] : hp_sdc.r7[2];
+ w7[3] = (mask & 8) ? curr->seq[++idx] : hp_sdc.r7[3];
+
+ if (hp_sdc.wi > 0x73 || hp_sdc.wi < 0x70 ||
+ w7[hp_sdc.wi - 0x70] == hp_sdc.r7[hp_sdc.wi - 0x70]) {
+ int i = 0;
+
+ /* Need to point the write index register */
+ while (i < 4 && w7[i] == hp_sdc.r7[i])
+ i++;
+
+ if (i < 4) {
+ hp_sdc_status_out8(HP_SDC_CMD_SET_D0 + i);
+ hp_sdc.wi = 0x70 + i;
+ goto finish;
+ }
+
+ idx++;
+ if ((act & HP_SDC_ACT_DURING) == HP_SDC_ACT_DATAREG)
+ goto actdone;
+
+ curr->idx = idx;
+ act &= ~HP_SDC_ACT_DATAREG;
+ break;
+ }
+
+ hp_sdc_data_out8(w7[hp_sdc.wi - 0x70]);
+ hp_sdc.r7[hp_sdc.wi - 0x70] = w7[hp_sdc.wi - 0x70];
+ hp_sdc.wi++; /* write index register autoincrements */
+ {
+ int i = 0;
+
+ while ((i < 4) && w7[i] == hp_sdc.r7[i])
+ i++;
+ if (i >= 4) {
+ curr->idx = idx + 1;
+ if ((act & HP_SDC_ACT_DURING) ==
+ HP_SDC_ACT_DATAREG)
+ goto actdone;
+ }
+ }
+ goto finish;
+ }
+ /* We don't go any further in the command if there is a pending read,
+ because we don't want interleaved results. */
+ read_lock_irq(&hp_sdc.rtq_lock);
+ if (hp_sdc.rcurr >= 0) {
+ read_unlock_irq(&hp_sdc.rtq_lock);
+ goto finish;
+ }
+ read_unlock_irq(&hp_sdc.rtq_lock);
+
+
+ if (act & HP_SDC_ACT_POSTCMD) {
+ uint8_t postcmd;
+
+ /* curr->idx should == idx at this point. */
+ postcmd = curr->seq[idx];
+ curr->idx++;
+ if (act & HP_SDC_ACT_DATAIN) {
+
+ /* Start a new read */
+ hp_sdc.rqty = curr->seq[curr->idx];
+ do_gettimeofday(&hp_sdc.rtv);
+ curr->idx++;
+ /* Still need to lock here in case of spurious irq. */
+ write_lock_irq(&hp_sdc.rtq_lock);
+ hp_sdc.rcurr = curridx;
+ write_unlock_irq(&hp_sdc.rtq_lock);
+ hp_sdc_status_out8(postcmd);
+ goto finish;
+ }
+ hp_sdc_status_out8(postcmd);
+ goto actdone;
+ }
+
+ actdone:
+ if (act & HP_SDC_ACT_SEMAPHORE)
+ up(curr->act.semaphore);
+ else if (act & HP_SDC_ACT_CALLBACK)
+ curr->act.irqhook(0,NULL,0,0);
+
+ if (curr->idx >= curr->endidx) { /* This transaction is over. */
+ if (act & HP_SDC_ACT_DEALLOC)
+ kfree(curr);
+ hp_sdc.tq[curridx] = NULL;
+ } else {
+ curr->actidx = idx + 1;
+ curr->idx = idx + 2;
+ }
+ /* Interleave outbound data between the transactions. */
+ hp_sdc.wcurr++;
+ if (hp_sdc.wcurr >= HP_SDC_QUEUE_LEN)
+ hp_sdc.wcurr = 0;
+
+ finish:
+ /* If by some quirk IBF has cleared and our ISR has run to
+ see that that has happened, do it all again. */
+ if (!hp_sdc.ibf && limit++ < 20)
+ goto anew;
+
+ done:
+ if (hp_sdc.wcurr >= 0)
+ tasklet_schedule(&hp_sdc.task);
+ write_unlock(&hp_sdc.lock);
+
+ return 0;
+}
+
+/******* Functions called in either user or kernel context ****/
+int __hp_sdc_enqueue_transaction(hp_sdc_transaction *this)
+{
+ int i;
+
+ if (this == NULL) {
+ BUG();
+ return -EINVAL;
+ }
+
+ /* Can't have same transaction on queue twice */
+ for (i = 0; i < HP_SDC_QUEUE_LEN; i++)
+ if (hp_sdc.tq[i] == this)
+ goto fail;
+
+ this->actidx = 0;
+ this->idx = 1;
+
+ /* Search for empty slot */
+ for (i = 0; i < HP_SDC_QUEUE_LEN; i++)
+ if (hp_sdc.tq[i] == NULL) {
+ hp_sdc.tq[i] = this;
+ tasklet_schedule(&hp_sdc.task);
+ return 0;
+ }
+
+ printk(KERN_WARNING PREFIX "No free slot to add transaction.\n");
+ return -EBUSY;
+
+ fail:
+ printk(KERN_WARNING PREFIX "Transaction add failed: transaction already queued?\n");
+ return -EINVAL;
+}
+
+int hp_sdc_enqueue_transaction(hp_sdc_transaction *this) {
+ unsigned long flags;
+ int ret;
+
+ write_lock_irqsave(&hp_sdc.lock, flags);
+ ret = __hp_sdc_enqueue_transaction(this);
+ write_unlock_irqrestore(&hp_sdc.lock,flags);
+
+ return ret;
+}
+
+int hp_sdc_dequeue_transaction(hp_sdc_transaction *this)
+{
+ unsigned long flags;
+ int i;
+
+ write_lock_irqsave(&hp_sdc.lock, flags);
+
+ /* TODO: don't remove it if it's not done. */
+
+ for (i = 0; i < HP_SDC_QUEUE_LEN; i++)
+ if (hp_sdc.tq[i] == this)
+ hp_sdc.tq[i] = NULL;
+
+ write_unlock_irqrestore(&hp_sdc.lock, flags);
+ return 0;
+}
+
+
+
+/********************** User context functions **************************/
+int hp_sdc_request_timer_irq(hp_sdc_irqhook *callback)
+{
+ if (callback == NULL || hp_sdc.dev == NULL)
+ return -EINVAL;
+
+ write_lock_irq(&hp_sdc.hook_lock);
+ if (hp_sdc.timer != NULL) {
+ write_unlock_irq(&hp_sdc.hook_lock);
+ return -EBUSY;
+ }
+
+ hp_sdc.timer = callback;
+ /* Enable interrupts from the timers */
+ hp_sdc.im &= ~HP_SDC_IM_FH;
+ hp_sdc.im &= ~HP_SDC_IM_PT;
+ hp_sdc.im &= ~HP_SDC_IM_TIMERS;
+ hp_sdc.set_im = 1;
+ write_unlock_irq(&hp_sdc.hook_lock);
+
+ tasklet_schedule(&hp_sdc.task);
+
+ return 0;
+}
+
+int hp_sdc_request_hil_irq(hp_sdc_irqhook *callback)
+{
+ if (callback == NULL || hp_sdc.dev == NULL)
+ return -EINVAL;
+
+ write_lock_irq(&hp_sdc.hook_lock);
+ if (hp_sdc.hil != NULL) {
+ write_unlock_irq(&hp_sdc.hook_lock);
+ return -EBUSY;
+ }
+
+ hp_sdc.hil = callback;
+ hp_sdc.im &= ~(HP_SDC_IM_HIL | HP_SDC_IM_RESET);
+ hp_sdc.set_im = 1;
+ write_unlock_irq(&hp_sdc.hook_lock);
+
+ tasklet_schedule(&hp_sdc.task);
+
+ return 0;
+}
+
+int hp_sdc_request_cooked_irq(hp_sdc_irqhook *callback)
+{
+ if (callback == NULL || hp_sdc.dev == NULL)
+ return -EINVAL;
+
+ write_lock_irq(&hp_sdc.hook_lock);
+ if (hp_sdc.cooked != NULL) {
+ write_unlock_irq(&hp_sdc.hook_lock);
+ return -EBUSY;
+ }
+
+ /* Enable interrupts from the HIL MLC */
+ hp_sdc.cooked = callback;
+ hp_sdc.im &= ~(HP_SDC_IM_HIL | HP_SDC_IM_RESET);
+ hp_sdc.set_im = 1;
+ write_unlock_irq(&hp_sdc.hook_lock);
+
+ tasklet_schedule(&hp_sdc.task);
+
+ return 0;
+}
+
+int hp_sdc_release_timer_irq(hp_sdc_irqhook *callback)
+{
+ write_lock_irq(&hp_sdc.hook_lock);
+ if ((callback != hp_sdc.timer) ||
+ (hp_sdc.timer == NULL)) {
+ write_unlock_irq(&hp_sdc.hook_lock);
+ return -EINVAL;
+ }
+
+ /* Disable interrupts from the timers */
+ hp_sdc.timer = NULL;
+ hp_sdc.im |= HP_SDC_IM_TIMERS;
+ hp_sdc.im |= HP_SDC_IM_FH;
+ hp_sdc.im |= HP_SDC_IM_PT;
+ hp_sdc.set_im = 1;
+ write_unlock_irq(&hp_sdc.hook_lock);
+ tasklet_schedule(&hp_sdc.task);
+
+ return 0;
+}
+
+int hp_sdc_release_hil_irq(hp_sdc_irqhook *callback)
+{
+ write_lock_irq(&hp_sdc.hook_lock);
+ if ((callback != hp_sdc.hil) ||
+ (hp_sdc.hil == NULL)) {
+ write_unlock_irq(&hp_sdc.hook_lock);
+ return -EINVAL;
+ }
+
+ hp_sdc.hil = NULL;
+ /* Disable interrupts from HIL only if there is no cooked driver. */
+ if(hp_sdc.cooked == NULL) {
+ hp_sdc.im |= (HP_SDC_IM_HIL | HP_SDC_IM_RESET);
+ hp_sdc.set_im = 1;
+ }
+ write_unlock_irq(&hp_sdc.hook_lock);
+ tasklet_schedule(&hp_sdc.task);
+
+ return 0;
+}
+
+int hp_sdc_release_cooked_irq(hp_sdc_irqhook *callback)
+{
+ write_lock_irq(&hp_sdc.hook_lock);
+ if ((callback != hp_sdc.cooked) ||
+ (hp_sdc.cooked == NULL)) {
+ write_unlock_irq(&hp_sdc.hook_lock);
+ return -EINVAL;
+ }
+
+ hp_sdc.cooked = NULL;
+ /* Disable interrupts from HIL only if there is no raw HIL driver. */
+ if(hp_sdc.hil == NULL) {
+ hp_sdc.im |= (HP_SDC_IM_HIL | HP_SDC_IM_RESET);
+ hp_sdc.set_im = 1;
+ }
+ write_unlock_irq(&hp_sdc.hook_lock);
+ tasklet_schedule(&hp_sdc.task);
+
+ return 0;
+}
+
+/************************* Keepalive timer task *********************/
+
+static void hp_sdc_kicker(unsigned long data)
+{
+ tasklet_schedule(&hp_sdc.task);
+ /* Re-insert the periodic task. */
+ mod_timer(&hp_sdc.kicker, jiffies + HZ);
+}
+
+/************************** Module Initialization ***************************/
+
+#if defined(__hppa__)
+
+static const struct parisc_device_id hp_sdc_tbl[] = {
+ {
+ .hw_type = HPHW_FIO,
+ .hversion_rev = HVERSION_REV_ANY_ID,
+ .hversion = HVERSION_ANY_ID,
+ .sversion = 0x73,
+ },
+ { 0, }
+};
+
+MODULE_DEVICE_TABLE(parisc, hp_sdc_tbl);
+
+static int __init hp_sdc_init_hppa(struct parisc_device *d);
+static struct delayed_work moduleloader_work;
+
+static struct parisc_driver hp_sdc_driver = {
+ .name = "hp_sdc",
+ .id_table = hp_sdc_tbl,
+ .probe = hp_sdc_init_hppa,
+};
+
+#endif /* __hppa__ */
+
+static int __init hp_sdc_init(void)
+{
+ char *errstr;
+ hp_sdc_transaction t_sync;
+ uint8_t ts_sync[6];
+ struct semaphore s_sync;
+
+ rwlock_init(&hp_sdc.lock);
+ rwlock_init(&hp_sdc.ibf_lock);
+ rwlock_init(&hp_sdc.rtq_lock);
+ rwlock_init(&hp_sdc.hook_lock);
+
+ hp_sdc.timer = NULL;
+ hp_sdc.hil = NULL;
+ hp_sdc.pup = NULL;
+ hp_sdc.cooked = NULL;
+ hp_sdc.im = HP_SDC_IM_MASK; /* Mask maskable irqs */
+ hp_sdc.set_im = 1;
+ hp_sdc.wi = 0xff;
+ hp_sdc.r7[0] = 0xff;
+ hp_sdc.r7[1] = 0xff;
+ hp_sdc.r7[2] = 0xff;
+ hp_sdc.r7[3] = 0xff;
+ hp_sdc.ibf = 1;
+
+ memset(&hp_sdc.tq, 0, sizeof(hp_sdc.tq));
+
+ hp_sdc.wcurr = -1;
+ hp_sdc.rcurr = -1;
+ hp_sdc.rqty = 0;
+
+ hp_sdc.dev_err = -ENODEV;
+
+ errstr = "IO not found for";
+ if (!hp_sdc.base_io)
+ goto err0;
+
+ errstr = "IRQ not found for";
+ if (!hp_sdc.irq)
+ goto err0;
+
+ hp_sdc.dev_err = -EBUSY;
+
+#if defined(__hppa__)
+ errstr = "IO not available for";
+ if (request_region(hp_sdc.data_io, 2, hp_sdc_driver.name))
+ goto err0;
+#endif
+
+ errstr = "IRQ not available for";
+ if (request_irq(hp_sdc.irq, &hp_sdc_isr, IRQF_SHARED|IRQF_SAMPLE_RANDOM,
+ "HP SDC", &hp_sdc))
+ goto err1;
+
+ errstr = "NMI not available for";
+ if (request_irq(hp_sdc.nmi, &hp_sdc_nmisr, IRQF_SHARED,
+ "HP SDC NMI", &hp_sdc))
+ goto err2;
+
+ printk(KERN_INFO PREFIX "HP SDC at 0x%p, IRQ %d (NMI IRQ %d)\n",
+ (void *)hp_sdc.base_io, hp_sdc.irq, hp_sdc.nmi);
+
+ hp_sdc_status_in8();
+ hp_sdc_data_in8();
+
+ tasklet_init(&hp_sdc.task, hp_sdc_tasklet, 0);
+
+ /* Sync the output buffer registers, thus scheduling hp_sdc_tasklet. */
+ t_sync.actidx = 0;
+ t_sync.idx = 1;
+ t_sync.endidx = 6;
+ t_sync.seq = ts_sync;
+ ts_sync[0] = HP_SDC_ACT_DATAREG | HP_SDC_ACT_SEMAPHORE;
+ ts_sync[1] = 0x0f;
+ ts_sync[2] = ts_sync[3] = ts_sync[4] = ts_sync[5] = 0;
+ t_sync.act.semaphore = &s_sync;
+ sema_init(&s_sync, 0);
+ hp_sdc_enqueue_transaction(&t_sync);
+ down(&s_sync); /* Wait for t_sync to complete */
+
+ /* Create the keepalive task */
+ init_timer(&hp_sdc.kicker);
+ hp_sdc.kicker.expires = jiffies + HZ;
+ hp_sdc.kicker.function = &hp_sdc_kicker;
+ add_timer(&hp_sdc.kicker);
+
+ hp_sdc.dev_err = 0;
+ return 0;
+ err2:
+ free_irq(hp_sdc.irq, &hp_sdc);
+ err1:
+ release_region(hp_sdc.data_io, 2);
+ err0:
+ printk(KERN_WARNING PREFIX ": %s SDC IO=0x%p IRQ=0x%x NMI=0x%x\n",
+ errstr, (void *)hp_sdc.base_io, hp_sdc.irq, hp_sdc.nmi);
+ hp_sdc.dev = NULL;
+
+ return hp_sdc.dev_err;
+}
+
+#if defined(__hppa__)
+
+static void request_module_delayed(struct work_struct *work)
+{
+ request_module("hp_sdc_mlc");
+}
+
+static int __init hp_sdc_init_hppa(struct parisc_device *d)
+{
+ int ret;
+
+ if (!d)
+ return 1;
+ if (hp_sdc.dev != NULL)
+ return 1; /* We only expect one SDC */
+
+ hp_sdc.dev = d;
+ hp_sdc.irq = d->irq;
+ hp_sdc.nmi = d->aux_irq;
+ hp_sdc.base_io = d->hpa.start;
+ hp_sdc.data_io = d->hpa.start + 0x800;
+ hp_sdc.status_io = d->hpa.start + 0x801;
+
+ INIT_DELAYED_WORK(&moduleloader_work, request_module_delayed);
+
+ ret = hp_sdc_init();
+ /* after successful initialization give SDC some time to settle
+ * and then load the hp_sdc_mlc upper layer driver */
+ if (!ret)
+ schedule_delayed_work(&moduleloader_work,
+ msecs_to_jiffies(2000));
+
+ return ret;
+}
+
+#endif /* __hppa__ */
+
+static void hp_sdc_exit(void)
+{
+ /* do nothing if we don't have a SDC */
+ if (!hp_sdc.dev)
+ return;
+
+ write_lock_irq(&hp_sdc.lock);
+
+ /* Turn off all maskable "sub-function" irq's. */
+ hp_sdc_spin_ibf();
+ sdc_writeb(HP_SDC_CMD_SET_IM | HP_SDC_IM_MASK, hp_sdc.status_io);
+
+ /* Wait until we know this has been processed by the i8042 */
+ hp_sdc_spin_ibf();
+
+ free_irq(hp_sdc.nmi, &hp_sdc);
+ free_irq(hp_sdc.irq, &hp_sdc);
+ write_unlock_irq(&hp_sdc.lock);
+
+ del_timer(&hp_sdc.kicker);
+
+ tasklet_kill(&hp_sdc.task);
+
+#if defined(__hppa__)
+ cancel_delayed_work_sync(&moduleloader_work);
+ if (unregister_parisc_driver(&hp_sdc_driver))
+ printk(KERN_WARNING PREFIX "Error unregistering HP SDC");
+#endif
+}
+
+static int __init hp_sdc_register(void)
+{
+ hp_sdc_transaction tq_init;
+ uint8_t tq_init_seq[5];
+ struct semaphore tq_init_sem;
+#if defined(__mc68000__)
+ mm_segment_t fs;
+ unsigned char i;
+#endif
+
+ if (hp_sdc_disabled) {
+ printk(KERN_WARNING PREFIX "HP SDC driver disabled by no_hpsdc=1.\n");
+ return -ENODEV;
+ }
+
+ hp_sdc.dev = NULL;
+ hp_sdc.dev_err = 0;
+#if defined(__hppa__)
+ if (register_parisc_driver(&hp_sdc_driver)) {
+ printk(KERN_WARNING PREFIX "Error registering SDC with system bus tree.\n");
+ return -ENODEV;
+ }
+#elif defined(__mc68000__)
+ if (!MACH_IS_HP300)
+ return -ENODEV;
+
+ hp_sdc.irq = 1;
+ hp_sdc.nmi = 7;
+ hp_sdc.base_io = (unsigned long) 0xf0428000;
+ hp_sdc.data_io = (unsigned long) hp_sdc.base_io + 1;
+ hp_sdc.status_io = (unsigned long) hp_sdc.base_io + 3;
+ fs = get_fs();
+ set_fs(KERNEL_DS);
+ if (!get_user(i, (unsigned char *)hp_sdc.data_io))
+ hp_sdc.dev = (void *)1;
+ set_fs(fs);
+ hp_sdc.dev_err = hp_sdc_init();
+#endif
+ if (hp_sdc.dev == NULL) {
+ printk(KERN_WARNING PREFIX "No SDC found.\n");
+ return hp_sdc.dev_err;
+ }
+
+ sema_init(&tq_init_sem, 0);
+
+ tq_init.actidx = 0;
+ tq_init.idx = 1;
+ tq_init.endidx = 5;
+ tq_init.seq = tq_init_seq;
+ tq_init.act.semaphore = &tq_init_sem;
+
+ tq_init_seq[0] =
+ HP_SDC_ACT_POSTCMD | HP_SDC_ACT_DATAIN | HP_SDC_ACT_SEMAPHORE;
+ tq_init_seq[1] = HP_SDC_CMD_READ_KCC;
+ tq_init_seq[2] = 1;
+ tq_init_seq[3] = 0;
+ tq_init_seq[4] = 0;
+
+ hp_sdc_enqueue_transaction(&tq_init);
+
+ down(&tq_init_sem);
+ up(&tq_init_sem);
+
+ if ((tq_init_seq[0] & HP_SDC_ACT_DEAD) == HP_SDC_ACT_DEAD) {
+ printk(KERN_WARNING PREFIX "Error reading config byte.\n");
+ hp_sdc_exit();
+ return -ENODEV;
+ }
+ hp_sdc.r11 = tq_init_seq[4];
+ if (hp_sdc.r11 & HP_SDC_CFG_NEW) {
+ const char *str;
+ printk(KERN_INFO PREFIX "New style SDC\n");
+ tq_init_seq[1] = HP_SDC_CMD_READ_XTD;
+ tq_init.actidx = 0;
+ tq_init.idx = 1;
+ down(&tq_init_sem);
+ hp_sdc_enqueue_transaction(&tq_init);
+ down(&tq_init_sem);
+ up(&tq_init_sem);
+ if ((tq_init_seq[0] & HP_SDC_ACT_DEAD) == HP_SDC_ACT_DEAD) {
+ printk(KERN_WARNING PREFIX "Error reading extended config byte.\n");
+ return -ENODEV;
+ }
+ hp_sdc.r7e = tq_init_seq[4];
+ HP_SDC_XTD_REV_STRINGS(hp_sdc.r7e & HP_SDC_XTD_REV, str)
+ printk(KERN_INFO PREFIX "Revision: %s\n", str);
+ if (hp_sdc.r7e & HP_SDC_XTD_BEEPER)
+ printk(KERN_INFO PREFIX "TI SN76494 beeper present\n");
+ if (hp_sdc.r7e & HP_SDC_XTD_BBRTC)
+ printk(KERN_INFO PREFIX "OKI MSM-58321 BBRTC present\n");
+ printk(KERN_INFO PREFIX "Spunking the self test register to force PUP "
+ "on next firmware reset.\n");
+ tq_init_seq[0] = HP_SDC_ACT_PRECMD |
+ HP_SDC_ACT_DATAOUT | HP_SDC_ACT_SEMAPHORE;
+ tq_init_seq[1] = HP_SDC_CMD_SET_STR;
+ tq_init_seq[2] = 1;
+ tq_init_seq[3] = 0;
+ tq_init.actidx = 0;
+ tq_init.idx = 1;
+ tq_init.endidx = 4;
+ down(&tq_init_sem);
+ hp_sdc_enqueue_transaction(&tq_init);
+ down(&tq_init_sem);
+ up(&tq_init_sem);
+ } else
+ printk(KERN_INFO PREFIX "Old style SDC (1820-%s).\n",
+ (hp_sdc.r11 & HP_SDC_CFG_REV) ? "3300" : "2564/3087");
+
+ return 0;
+}
+
+module_init(hp_sdc_register);
+module_exit(hp_sdc_exit);
+
+/* Timing notes: These measurements taken on my 64MHz 7100-LC (715/64)
+ * cycles cycles-adj time
+ * between two consecutive mfctl(16)'s: 4 n/a 63ns
+ * hp_sdc_spin_ibf when idle: 119 115 1.7us
+ * gsc_writeb status register: 83 79 1.2us
+ * IBF to clear after sending SET_IM: 6204 6006 93us
+ * IBF to clear after sending LOAD_RT: 4467 4352 68us
+ * IBF to clear after sending two LOAD_RTs: 18974 18859 295us
+ * READ_T1, read status/data, IRQ, call handler: 35564 n/a 556us
+ * cmd to ~IBF READ_T1 2nd time right after: 5158403 n/a 81ms
+ * between IRQ received and ~IBF for above: 2578877 n/a 40ms
+ *
+ * Performance stats after a run of this module configuring HIL and
+ * receiving a few mouse events:
+ *
+ * status in8 282508 cycles 7128 calls
+ * status out8 8404 cycles 341 calls
+ * data out8 1734 cycles 78 calls
+ * isr 174324 cycles 617 calls (includes take)
+ * take 1241 cycles 2 calls
+ * put 1411504 cycles 6937 calls
+ * task 1655209 cycles 6937 calls (includes put)
+ *
+ */
diff --git a/drivers/input/serio/hp_sdc_mlc.c b/drivers/input/serio/hp_sdc_mlc.c
new file mode 100644
index 0000000..d50f067
--- /dev/null
+++ b/drivers/input/serio/hp_sdc_mlc.c
@@ -0,0 +1,358 @@
+/*
+ * Access to HP-HIL MLC through HP System Device Controller.
+ *
+ * Copyright (c) 2001 Brian S. Julin
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL").
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ *
+ * References:
+ * HP-HIL Technical Reference Manual. Hewlett Packard Product No. 45918A
+ * System Device Controller Microprocessor Firmware Theory of Operation
+ * for Part Number 1820-4784 Revision B. Dwg No. A-1820-4784-2
+ *
+ */
+
+#include <linux/hil_mlc.h>
+#include <linux/hp_sdc.h>
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/string.h>
+#include <linux/semaphore.h>
+
+#define PREFIX "HP SDC MLC: "
+
+static hil_mlc hp_sdc_mlc;
+
+MODULE_AUTHOR("Brian S. Julin <bri@calyx.com>");
+MODULE_DESCRIPTION("Glue for onboard HIL MLC in HP-PARISC machines");
+MODULE_LICENSE("Dual BSD/GPL");
+
+static struct hp_sdc_mlc_priv_s {
+ int emtestmode;
+ hp_sdc_transaction trans;
+ u8 tseq[16];
+ int got5x;
+} hp_sdc_mlc_priv;
+
+/************************* Interrupt context ******************************/
+static void hp_sdc_mlc_isr (int irq, void *dev_id,
+ uint8_t status, uint8_t data)
+{
+ int idx;
+ hil_mlc *mlc = &hp_sdc_mlc;
+
+ write_lock(&mlc->lock);
+ if (mlc->icount < 0) {
+ printk(KERN_WARNING PREFIX "HIL Overflow!\n");
+ up(&mlc->isem);
+ goto out;
+ }
+ idx = 15 - mlc->icount;
+ if ((status & HP_SDC_STATUS_IRQMASK) == HP_SDC_STATUS_HILDATA) {
+ mlc->ipacket[idx] |= data | HIL_ERR_INT;
+ mlc->icount--;
+ if (hp_sdc_mlc_priv.got5x || !idx)
+ goto check;
+ if ((mlc->ipacket[idx - 1] & HIL_PKT_ADDR_MASK) !=
+ (mlc->ipacket[idx] & HIL_PKT_ADDR_MASK)) {
+ mlc->ipacket[idx] &= ~HIL_PKT_ADDR_MASK;
+ mlc->ipacket[idx] |= (mlc->ipacket[idx - 1]
+ & HIL_PKT_ADDR_MASK);
+ }
+ goto check;
+ }
+ /* We know status is 5X */
+ if (data & HP_SDC_HIL_ISERR)
+ goto err;
+ mlc->ipacket[idx] =
+ (data & HP_SDC_HIL_R1MASK) << HIL_PKT_ADDR_SHIFT;
+ hp_sdc_mlc_priv.got5x = 1;
+ goto out;
+
+ check:
+ hp_sdc_mlc_priv.got5x = 0;
+ if (mlc->imatch == 0)
+ goto done;
+ if ((mlc->imatch == (HIL_ERR_INT | HIL_PKT_CMD | HIL_CMD_POL))
+ && (mlc->ipacket[idx] == (mlc->imatch | idx)))
+ goto done;
+ if (mlc->ipacket[idx] == mlc->imatch)
+ goto done;
+ goto out;
+
+ err:
+ printk(KERN_DEBUG PREFIX "err code %x\n", data);
+
+ switch (data) {
+ case HP_SDC_HIL_RC_DONE:
+ printk(KERN_WARNING PREFIX "Bastard SDC reconfigured loop!\n");
+ break;
+
+ case HP_SDC_HIL_ERR:
+ mlc->ipacket[idx] |= HIL_ERR_INT | HIL_ERR_PERR |
+ HIL_ERR_FERR | HIL_ERR_FOF;
+ break;
+
+ case HP_SDC_HIL_TO:
+ mlc->ipacket[idx] |= HIL_ERR_INT | HIL_ERR_LERR;
+ break;
+
+ case HP_SDC_HIL_RC:
+ printk(KERN_WARNING PREFIX "Bastard SDC decided to reconfigure loop!\n");
+ break;
+
+ default:
+ printk(KERN_WARNING PREFIX "Unknown HIL Error status (%x)!\n", data);
+ break;
+ }
+
+ /* No more data will be coming due to an error. */
+ done:
+ tasklet_schedule(mlc->tasklet);
+ up(&mlc->isem);
+ out:
+ write_unlock(&mlc->lock);
+}
+
+
+/******************** Tasklet or userspace context functions ****************/
+
+static int hp_sdc_mlc_in(hil_mlc *mlc, suseconds_t timeout)
+{
+ struct hp_sdc_mlc_priv_s *priv;
+ int rc = 2;
+
+ priv = mlc->priv;
+
+ /* Try to down the semaphore */
+ if (down_trylock(&mlc->isem)) {
+ struct timeval tv;
+ if (priv->emtestmode) {
+ mlc->ipacket[0] =
+ HIL_ERR_INT | (mlc->opacket &
+ (HIL_PKT_CMD |
+ HIL_PKT_ADDR_MASK |
+ HIL_PKT_DATA_MASK));
+ mlc->icount = 14;
+ /* printk(KERN_DEBUG PREFIX ">[%x]\n", mlc->ipacket[0]); */
+ goto wasup;
+ }
+ do_gettimeofday(&tv);
+ tv.tv_usec += USEC_PER_SEC * (tv.tv_sec - mlc->instart.tv_sec);
+ if (tv.tv_usec - mlc->instart.tv_usec > mlc->intimeout) {
+ /* printk("!%i %i",
+ tv.tv_usec - mlc->instart.tv_usec,
+ mlc->intimeout);
+ */
+ rc = 1;
+ up(&mlc->isem);
+ }
+ goto done;
+ }
+ wasup:
+ up(&mlc->isem);
+ rc = 0;
+ done:
+ return rc;
+}
+
+static int hp_sdc_mlc_cts(hil_mlc *mlc)
+{
+ struct hp_sdc_mlc_priv_s *priv;
+
+ priv = mlc->priv;
+
+ /* Try to down the semaphores -- they should be up. */
+ BUG_ON(down_trylock(&mlc->isem));
+ BUG_ON(down_trylock(&mlc->osem));
+
+ up(&mlc->isem);
+ up(&mlc->osem);
+
+ if (down_trylock(&mlc->csem)) {
+ if (priv->trans.act.semaphore != &mlc->csem)
+ goto poll;
+ else
+ goto busy;
+ }
+
+ if (!(priv->tseq[4] & HP_SDC_USE_LOOP))
+ goto done;
+
+ poll:
+ priv->trans.act.semaphore = &mlc->csem;
+ priv->trans.actidx = 0;
+ priv->trans.idx = 1;
+ priv->trans.endidx = 5;
+ priv->tseq[0] =
+ HP_SDC_ACT_POSTCMD | HP_SDC_ACT_DATAIN | HP_SDC_ACT_SEMAPHORE;
+ priv->tseq[1] = HP_SDC_CMD_READ_USE;
+ priv->tseq[2] = 1;
+ priv->tseq[3] = 0;
+ priv->tseq[4] = 0;
+ __hp_sdc_enqueue_transaction(&priv->trans);
+ busy:
+ return 1;
+ done:
+ priv->trans.act.semaphore = &mlc->osem;
+ up(&mlc->csem);
+ return 0;
+}
+
+static void hp_sdc_mlc_out(hil_mlc *mlc)
+{
+ struct hp_sdc_mlc_priv_s *priv;
+
+ priv = mlc->priv;
+
+ /* Try to down the semaphore -- it should be up. */
+ BUG_ON(down_trylock(&mlc->osem));
+
+ if (mlc->opacket & HIL_DO_ALTER_CTRL)
+ goto do_control;
+
+ do_data:
+ if (priv->emtestmode) {
+ up(&mlc->osem);
+ return;
+ }
+ /* Shouldn't be sending commands when loop may be busy */
+ BUG_ON(down_trylock(&mlc->csem));
+ up(&mlc->csem);
+
+ priv->trans.actidx = 0;
+ priv->trans.idx = 1;
+ priv->trans.act.semaphore = &mlc->osem;
+ priv->trans.endidx = 6;
+ priv->tseq[0] =
+ HP_SDC_ACT_DATAREG | HP_SDC_ACT_POSTCMD | HP_SDC_ACT_SEMAPHORE;
+ priv->tseq[1] = 0x7;
+ priv->tseq[2] =
+ (mlc->opacket &
+ (HIL_PKT_ADDR_MASK | HIL_PKT_CMD))
+ >> HIL_PKT_ADDR_SHIFT;
+ priv->tseq[3] =
+ (mlc->opacket & HIL_PKT_DATA_MASK)
+ >> HIL_PKT_DATA_SHIFT;
+ priv->tseq[4] = 0; /* No timeout */
+ if (priv->tseq[3] == HIL_CMD_DHR)
+ priv->tseq[4] = 1;
+ priv->tseq[5] = HP_SDC_CMD_DO_HIL;
+ goto enqueue;
+
+ do_control:
+ priv->emtestmode = mlc->opacket & HIL_CTRL_TEST;
+
+ /* we cannot emulate this, it should not be used. */
+ BUG_ON((mlc->opacket & (HIL_CTRL_APE | HIL_CTRL_IPF)) == HIL_CTRL_APE);
+
+ if ((mlc->opacket & HIL_CTRL_ONLY) == HIL_CTRL_ONLY)
+ goto control_only;
+
+ /* Should not send command/data after engaging APE */
+ BUG_ON(mlc->opacket & HIL_CTRL_APE);
+
+ /* Disengaging APE this way would not be valid either since
+ * the loop must be allowed to idle.
+ *
+ * So, it works out that we really never actually send control
+ * and data when using SDC, we just send the data.
+ */
+ goto do_data;
+
+ control_only:
+ priv->trans.actidx = 0;
+ priv->trans.idx = 1;
+ priv->trans.act.semaphore = &mlc->osem;
+ priv->trans.endidx = 4;
+ priv->tseq[0] =
+ HP_SDC_ACT_PRECMD | HP_SDC_ACT_DATAOUT | HP_SDC_ACT_SEMAPHORE;
+ priv->tseq[1] = HP_SDC_CMD_SET_LPC;
+ priv->tseq[2] = 1;
+ /* priv->tseq[3] = (mlc->ddc + 1) | HP_SDC_LPS_ACSUCC; */
+ priv->tseq[3] = 0;
+ if (mlc->opacket & HIL_CTRL_APE) {
+ priv->tseq[3] |= HP_SDC_LPC_APE_IPF;
+ BUG_ON(down_trylock(&mlc->csem));
+ }
+ enqueue:
+ hp_sdc_enqueue_transaction(&priv->trans);
+}
+
+static int __init hp_sdc_mlc_init(void)
+{
+ hil_mlc *mlc = &hp_sdc_mlc;
+ int err;
+
+#ifdef __mc68000__
+ if (!MACH_IS_HP300)
+ return -ENODEV;
+#endif
+
+ printk(KERN_INFO PREFIX "Registering the System Domain Controller's HIL MLC.\n");
+
+ hp_sdc_mlc_priv.emtestmode = 0;
+ hp_sdc_mlc_priv.trans.seq = hp_sdc_mlc_priv.tseq;
+ hp_sdc_mlc_priv.trans.act.semaphore = &mlc->osem;
+ hp_sdc_mlc_priv.got5x = 0;
+
+ mlc->cts = &hp_sdc_mlc_cts;
+ mlc->in = &hp_sdc_mlc_in;
+ mlc->out = &hp_sdc_mlc_out;
+ mlc->priv = &hp_sdc_mlc_priv;
+
+ err = hil_mlc_register(mlc);
+ if (err) {
+ printk(KERN_WARNING PREFIX "Failed to register MLC structure with hil_mlc\n");
+ return err;
+ }
+
+ if (hp_sdc_request_hil_irq(&hp_sdc_mlc_isr)) {
+ printk(KERN_WARNING PREFIX "Request for raw HIL ISR hook denied\n");
+ if (hil_mlc_unregister(mlc))
+ printk(KERN_ERR PREFIX "Failed to unregister MLC structure with hil_mlc.\n"
+ "This is bad. Could cause an oops.\n");
+ return -EBUSY;
+ }
+
+ return 0;
+}
+
+static void __exit hp_sdc_mlc_exit(void)
+{
+ hil_mlc *mlc = &hp_sdc_mlc;
+
+ if (hp_sdc_release_hil_irq(&hp_sdc_mlc_isr))
+ printk(KERN_ERR PREFIX "Failed to release the raw HIL ISR hook.\n"
+ "This is bad. Could cause an oops.\n");
+
+ if (hil_mlc_unregister(mlc))
+ printk(KERN_ERR PREFIX "Failed to unregister MLC structure with hil_mlc.\n"
+ "This is bad. Could cause an oops.\n");
+}
+
+module_init(hp_sdc_mlc_init);
+module_exit(hp_sdc_mlc_exit);
diff --git a/drivers/input/serio/i8042-io.h b/drivers/input/serio/i8042-io.h
new file mode 100644
index 0000000..5d48bb6
--- /dev/null
+++ b/drivers/input/serio/i8042-io.h
@@ -0,0 +1,95 @@
+#ifndef _I8042_IO_H
+#define _I8042_IO_H
+
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ */
+
+/*
+ * Names.
+ */
+
+#define I8042_KBD_PHYS_DESC "isa0060/serio0"
+#define I8042_AUX_PHYS_DESC "isa0060/serio1"
+#define I8042_MUX_PHYS_DESC "isa0060/serio%d"
+
+/*
+ * IRQs.
+ */
+
+#ifdef __alpha__
+# define I8042_KBD_IRQ 1
+# define I8042_AUX_IRQ (RTC_PORT(0) == 0x170 ? 9 : 12) /* Jensen is special */
+#elif defined(__arm__)
+/* defined in include/asm-arm/arch-xxx/irqs.h */
+#include <asm/irq.h>
+#elif defined(CONFIG_SH_CAYMAN)
+#include <asm/irq.h>
+#elif defined(CONFIG_PPC)
+extern int of_i8042_kbd_irq;
+extern int of_i8042_aux_irq;
+# define I8042_KBD_IRQ of_i8042_kbd_irq
+# define I8042_AUX_IRQ of_i8042_aux_irq
+#else
+# define I8042_KBD_IRQ 1
+# define I8042_AUX_IRQ 12
+#endif
+
+
+/*
+ * Register numbers.
+ */
+
+#define I8042_COMMAND_REG 0x64
+#define I8042_STATUS_REG 0x64
+#define I8042_DATA_REG 0x60
+
+static inline int i8042_read_data(void)
+{
+ return inb(I8042_DATA_REG);
+}
+
+static inline int i8042_read_status(void)
+{
+ return inb(I8042_STATUS_REG);
+}
+
+static inline void i8042_write_data(int val)
+{
+ outb(val, I8042_DATA_REG);
+}
+
+static inline void i8042_write_command(int val)
+{
+ outb(val, I8042_COMMAND_REG);
+}
+
+static inline int i8042_platform_init(void)
+{
+/*
+ * On some platforms touching the i8042 data register region can do really
+ * bad things. Because of this the region is always reserved on such boxes.
+ */
+#if defined(CONFIG_PPC)
+ if (check_legacy_ioport(I8042_DATA_REG))
+ return -ENODEV;
+#endif
+#if !defined(__sh__) && !defined(__alpha__) && !defined(__mips__)
+ if (!request_region(I8042_DATA_REG, 16, "i8042"))
+ return -EBUSY;
+#endif
+
+ i8042_reset = 1;
+ return 0;
+}
+
+static inline void i8042_platform_exit(void)
+{
+#if !defined(__sh__) && !defined(__alpha__)
+ release_region(I8042_DATA_REG, 16);
+#endif
+}
+
+#endif /* _I8042_IO_H */
diff --git a/drivers/input/serio/i8042-ip22io.h b/drivers/input/serio/i8042-ip22io.h
new file mode 100644
index 0000000..ee1ad27
--- /dev/null
+++ b/drivers/input/serio/i8042-ip22io.h
@@ -0,0 +1,76 @@
+#ifndef _I8042_IP22_H
+#define _I8042_IP22_H
+
+#include <asm/sgi/ioc.h>
+#include <asm/sgi/ip22.h>
+
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ */
+
+/*
+ * Names.
+ */
+
+#define I8042_KBD_PHYS_DESC "hpc3ps2/serio0"
+#define I8042_AUX_PHYS_DESC "hpc3ps2/serio1"
+#define I8042_MUX_PHYS_DESC "hpc3ps2/serio%d"
+
+/*
+ * IRQs.
+ */
+
+#define I8042_KBD_IRQ SGI_KEYBD_IRQ
+#define I8042_AUX_IRQ SGI_KEYBD_IRQ
+
+/*
+ * Register numbers.
+ */
+
+#define I8042_COMMAND_REG ((unsigned long)&sgioc->kbdmouse.command)
+#define I8042_STATUS_REG ((unsigned long)&sgioc->kbdmouse.command)
+#define I8042_DATA_REG ((unsigned long)&sgioc->kbdmouse.data)
+
+static inline int i8042_read_data(void)
+{
+ return sgioc->kbdmouse.data;
+}
+
+static inline int i8042_read_status(void)
+{
+ return sgioc->kbdmouse.command;
+}
+
+static inline void i8042_write_data(int val)
+{
+ sgioc->kbdmouse.data = val;
+}
+
+static inline void i8042_write_command(int val)
+{
+ sgioc->kbdmouse.command = val;
+}
+
+static inline int i8042_platform_init(void)
+{
+#if 0
+ /* XXX sgi_kh is a virtual address */
+ if (!request_mem_region(sgi_kh, sizeof(struct hpc_keyb), "i8042"))
+ return -EBUSY;
+#endif
+
+ i8042_reset = 1;
+
+ return 0;
+}
+
+static inline void i8042_platform_exit(void)
+{
+#if 0
+ release_mem_region(JAZZ_KEYBOARD_ADDRESS, sizeof(struct hpc_keyb));
+#endif
+}
+
+#endif /* _I8042_IP22_H */
diff --git a/drivers/input/serio/i8042-jazzio.h b/drivers/input/serio/i8042-jazzio.h
new file mode 100644
index 0000000..13fd710
--- /dev/null
+++ b/drivers/input/serio/i8042-jazzio.h
@@ -0,0 +1,69 @@
+#ifndef _I8042_JAZZ_H
+#define _I8042_JAZZ_H
+
+#include <asm/jazz.h>
+
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ */
+
+/*
+ * Names.
+ */
+
+#define I8042_KBD_PHYS_DESC "R4030/serio0"
+#define I8042_AUX_PHYS_DESC "R4030/serio1"
+#define I8042_MUX_PHYS_DESC "R4030/serio%d"
+
+/*
+ * IRQs.
+ */
+
+#define I8042_KBD_IRQ JAZZ_KEYBOARD_IRQ
+#define I8042_AUX_IRQ JAZZ_MOUSE_IRQ
+
+#define I8042_COMMAND_REG ((unsigned long)&jazz_kh->command)
+#define I8042_STATUS_REG ((unsigned long)&jazz_kh->command)
+#define I8042_DATA_REG ((unsigned long)&jazz_kh->data)
+
+static inline int i8042_read_data(void)
+{
+ return jazz_kh->data;
+}
+
+static inline int i8042_read_status(void)
+{
+ return jazz_kh->command;
+}
+
+static inline void i8042_write_data(int val)
+{
+ jazz_kh->data = val;
+}
+
+static inline void i8042_write_command(int val)
+{
+ jazz_kh->command = val;
+}
+
+static inline int i8042_platform_init(void)
+{
+#if 0
+ /* XXX JAZZ_KEYBOARD_ADDRESS is a virtual address */
+ if (!request_mem_region(JAZZ_KEYBOARD_ADDRESS, 2, "i8042"))
+ return -EBUSY;
+#endif
+
+ return 0;
+}
+
+static inline void i8042_platform_exit(void)
+{
+#if 0
+ release_mem_region(JAZZ_KEYBOARD_ADDRESS, 2);
+#endif
+}
+
+#endif /* _I8042_JAZZ_H */
diff --git a/drivers/input/serio/i8042-ppcio.h b/drivers/input/serio/i8042-ppcio.h
new file mode 100644
index 0000000..f708c75
--- /dev/null
+++ b/drivers/input/serio/i8042-ppcio.h
@@ -0,0 +1,61 @@
+#ifndef _I8042_PPCIO_H
+#define _I8042_PPCIO_H
+
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ */
+
+#if defined(CONFIG_WALNUT)
+
+#define I8042_KBD_IRQ 25
+#define I8042_AUX_IRQ 26
+
+#define I8042_KBD_PHYS_DESC "walnutps2/serio0"
+#define I8042_AUX_PHYS_DESC "walnutps2/serio1"
+#define I8042_MUX_PHYS_DESC "walnutps2/serio%d"
+
+extern void *kb_cs;
+extern void *kb_data;
+
+#define I8042_COMMAND_REG (*(int *)kb_cs)
+#define I8042_DATA_REG (*(int *)kb_data)
+
+static inline int i8042_read_data(void)
+{
+ return readb(kb_data);
+}
+
+static inline int i8042_read_status(void)
+{
+ return readb(kb_cs);
+}
+
+static inline void i8042_write_data(int val)
+{
+ writeb(val, kb_data);
+}
+
+static inline void i8042_write_command(int val)
+{
+ writeb(val, kb_cs);
+}
+
+static inline int i8042_platform_init(void)
+{
+ i8042_reset = 1;
+ return 0;
+}
+
+static inline void i8042_platform_exit(void)
+{
+}
+
+#else
+
+#include "i8042-io.h"
+
+#endif
+
+#endif /* _I8042_PPCIO_H */
diff --git a/drivers/input/serio/i8042-snirm.h b/drivers/input/serio/i8042-snirm.h
new file mode 100644
index 0000000..409a934
--- /dev/null
+++ b/drivers/input/serio/i8042-snirm.h
@@ -0,0 +1,75 @@
+#ifndef _I8042_SNIRM_H
+#define _I8042_SNIRM_H
+
+#include <asm/sni.h>
+
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ */
+
+/*
+ * Names.
+ */
+
+#define I8042_KBD_PHYS_DESC "onboard/serio0"
+#define I8042_AUX_PHYS_DESC "onboard/serio1"
+#define I8042_MUX_PHYS_DESC "onboard/serio%d"
+
+/*
+ * IRQs.
+ */
+static int i8042_kbd_irq;
+static int i8042_aux_irq;
+#define I8042_KBD_IRQ i8042_kbd_irq
+#define I8042_AUX_IRQ i8042_aux_irq
+
+static void __iomem *kbd_iobase;
+
+#define I8042_COMMAND_REG (kbd_iobase + 0x64UL)
+#define I8042_DATA_REG (kbd_iobase + 0x60UL)
+
+static inline int i8042_read_data(void)
+{
+ return readb(kbd_iobase + 0x60UL);
+}
+
+static inline int i8042_read_status(void)
+{
+ return readb(kbd_iobase + 0x64UL);
+}
+
+static inline void i8042_write_data(int val)
+{
+ writeb(val, kbd_iobase + 0x60UL);
+}
+
+static inline void i8042_write_command(int val)
+{
+ writeb(val, kbd_iobase + 0x64UL);
+}
+static inline int i8042_platform_init(void)
+{
+ /* RM200 is strange ... */
+ if (sni_brd_type == SNI_BRD_RM200) {
+ kbd_iobase = ioremap(0x16000000, 4);
+ i8042_kbd_irq = 33;
+ i8042_aux_irq = 44;
+ } else {
+ kbd_iobase = ioremap(0x14000000, 4);
+ i8042_kbd_irq = 1;
+ i8042_aux_irq = 12;
+ }
+ if (!kbd_iobase)
+ return -ENOMEM;
+
+ return 0;
+}
+
+static inline void i8042_platform_exit(void)
+{
+
+}
+
+#endif /* _I8042_SNIRM_H */
diff --git a/drivers/input/serio/i8042-sparcio.h b/drivers/input/serio/i8042-sparcio.h
new file mode 100644
index 0000000..395a9af
--- /dev/null
+++ b/drivers/input/serio/i8042-sparcio.h
@@ -0,0 +1,157 @@
+#ifndef _I8042_SPARCIO_H
+#define _I8042_SPARCIO_H
+
+#include <linux/of_device.h>
+
+#include <asm/io.h>
+#include <asm/oplib.h>
+#include <asm/prom.h>
+
+static int i8042_kbd_irq = -1;
+static int i8042_aux_irq = -1;
+#define I8042_KBD_IRQ i8042_kbd_irq
+#define I8042_AUX_IRQ i8042_aux_irq
+
+#define I8042_KBD_PHYS_DESC "sparcps2/serio0"
+#define I8042_AUX_PHYS_DESC "sparcps2/serio1"
+#define I8042_MUX_PHYS_DESC "sparcps2/serio%d"
+
+static void __iomem *kbd_iobase;
+static struct resource *kbd_res;
+
+#define I8042_COMMAND_REG (kbd_iobase + 0x64UL)
+#define I8042_DATA_REG (kbd_iobase + 0x60UL)
+
+static inline int i8042_read_data(void)
+{
+ return readb(kbd_iobase + 0x60UL);
+}
+
+static inline int i8042_read_status(void)
+{
+ return readb(kbd_iobase + 0x64UL);
+}
+
+static inline void i8042_write_data(int val)
+{
+ writeb(val, kbd_iobase + 0x60UL);
+}
+
+static inline void i8042_write_command(int val)
+{
+ writeb(val, kbd_iobase + 0x64UL);
+}
+
+#ifdef CONFIG_PCI
+
+#define OBP_PS2KBD_NAME1 "kb_ps2"
+#define OBP_PS2KBD_NAME2 "keyboard"
+#define OBP_PS2MS_NAME1 "kdmouse"
+#define OBP_PS2MS_NAME2 "mouse"
+
+static int __devinit sparc_i8042_probe(struct platform_device *op)
+{
+ struct device_node *dp = op->dev.of_node;
+
+ dp = dp->child;
+ while (dp) {
+ if (!strcmp(dp->name, OBP_PS2KBD_NAME1) ||
+ !strcmp(dp->name, OBP_PS2KBD_NAME2)) {
+ struct platform_device *kbd = of_find_device_by_node(dp);
+ unsigned int irq = kbd->archdata.irqs[0];
+ if (irq == 0xffffffff)
+ irq = op->archdata.irqs[0];
+ i8042_kbd_irq = irq;
+ kbd_iobase = of_ioremap(&kbd->resource[0],
+ 0, 8, "kbd");
+ kbd_res = &kbd->resource[0];
+ } else if (!strcmp(dp->name, OBP_PS2MS_NAME1) ||
+ !strcmp(dp->name, OBP_PS2MS_NAME2)) {
+ struct platform_device *ms = of_find_device_by_node(dp);
+ unsigned int irq = ms->archdata.irqs[0];
+ if (irq == 0xffffffff)
+ irq = op->archdata.irqs[0];
+ i8042_aux_irq = irq;
+ }
+
+ dp = dp->sibling;
+ }
+
+ return 0;
+}
+
+static int __devexit sparc_i8042_remove(struct platform_device *op)
+{
+ of_iounmap(kbd_res, kbd_iobase, 8);
+
+ return 0;
+}
+
+static const struct of_device_id sparc_i8042_match[] = {
+ {
+ .name = "8042",
+ },
+ {},
+};
+MODULE_DEVICE_TABLE(of, sparc_i8042_match);
+
+static struct platform_driver sparc_i8042_driver = {
+ .driver = {
+ .name = "i8042",
+ .owner = THIS_MODULE,
+ .of_match_table = sparc_i8042_match,
+ },
+ .probe = sparc_i8042_probe,
+ .remove = __devexit_p(sparc_i8042_remove),
+};
+
+static int __init i8042_platform_init(void)
+{
+ struct device_node *root = of_find_node_by_path("/");
+
+ if (!strcmp(root->name, "SUNW,JavaStation-1")) {
+ /* Hardcoded values for MrCoffee. */
+ i8042_kbd_irq = i8042_aux_irq = 13 | 0x20;
+ kbd_iobase = ioremap(0x71300060, 8);
+ if (!kbd_iobase)
+ return -ENODEV;
+ } else {
+ int err = platform_driver_register(&sparc_i8042_driver);
+ if (err)
+ return err;
+
+ if (i8042_kbd_irq == -1 ||
+ i8042_aux_irq == -1) {
+ if (kbd_iobase) {
+ of_iounmap(kbd_res, kbd_iobase, 8);
+ kbd_iobase = (void __iomem *) NULL;
+ }
+ return -ENODEV;
+ }
+ }
+
+ i8042_reset = 1;
+
+ return 0;
+}
+
+static inline void i8042_platform_exit(void)
+{
+ struct device_node *root = of_find_node_by_path("/");
+
+ if (strcmp(root->name, "SUNW,JavaStation-1"))
+ platform_driver_unregister(&sparc_i8042_driver);
+}
+
+#else /* !CONFIG_PCI */
+static int __init i8042_platform_init(void)
+{
+ return -ENODEV;
+}
+
+static inline void i8042_platform_exit(void)
+{
+}
+#endif /* !CONFIG_PCI */
+
+#endif /* _I8042_SPARCIO_H */
diff --git a/drivers/input/serio/i8042-unicore32io.h b/drivers/input/serio/i8042-unicore32io.h
new file mode 100644
index 0000000..73f5cc1
--- /dev/null
+++ b/drivers/input/serio/i8042-unicore32io.h
@@ -0,0 +1,73 @@
+/*
+ * Code specific to PKUnity SoC and UniCore ISA
+ *
+ * Maintained by GUAN Xue-tao <gxt@mprc.pku.edu.cn>
+ * Copyright (C) 2001-2011 Guan Xuetao
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef _I8042_UNICORE32_H
+#define _I8042_UNICORE32_H
+
+#include <mach/hardware.h>
+
+/*
+ * Names.
+ */
+#define I8042_KBD_PHYS_DESC "isa0060/serio0"
+#define I8042_AUX_PHYS_DESC "isa0060/serio1"
+#define I8042_MUX_PHYS_DESC "isa0060/serio%d"
+
+/*
+ * IRQs.
+ */
+#define I8042_KBD_IRQ IRQ_PS2_KBD
+#define I8042_AUX_IRQ IRQ_PS2_AUX
+
+/*
+ * Register numbers.
+ */
+#define I8042_COMMAND_REG PS2_COMMAND
+#define I8042_STATUS_REG PS2_STATUS
+#define I8042_DATA_REG PS2_DATA
+
+#define I8042_REGION_START (resource_size_t)(PS2_DATA)
+#define I8042_REGION_SIZE (resource_size_t)(16)
+
+static inline int i8042_read_data(void)
+{
+ return readb(I8042_DATA_REG);
+}
+
+static inline int i8042_read_status(void)
+{
+ return readb(I8042_STATUS_REG);
+}
+
+static inline void i8042_write_data(int val)
+{
+ writeb(val, I8042_DATA_REG);
+}
+
+static inline void i8042_write_command(int val)
+{
+ writeb(val, I8042_COMMAND_REG);
+}
+
+static inline int i8042_platform_init(void)
+{
+ if (!request_mem_region(I8042_REGION_START, I8042_REGION_SIZE, "i8042"))
+ return -EBUSY;
+
+ i8042_reset = 1;
+ return 0;
+}
+
+static inline void i8042_platform_exit(void)
+{
+ release_mem_region(I8042_REGION_START, I8042_REGION_SIZE);
+}
+
+#endif /* _I8042_UNICORE32_H */
diff --git a/drivers/input/serio/i8042-x86ia64io.h b/drivers/input/serio/i8042-x86ia64io.h
new file mode 100644
index 0000000..b4cfc6c
--- /dev/null
+++ b/drivers/input/serio/i8042-x86ia64io.h
@@ -0,0 +1,946 @@
+#ifndef _I8042_X86IA64IO_H
+#define _I8042_X86IA64IO_H
+
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ */
+
+#ifdef CONFIG_X86
+#include <asm/x86_init.h>
+#endif
+
+/*
+ * Names.
+ */
+
+#define I8042_KBD_PHYS_DESC "isa0060/serio0"
+#define I8042_AUX_PHYS_DESC "isa0060/serio1"
+#define I8042_MUX_PHYS_DESC "isa0060/serio%d"
+
+/*
+ * IRQs.
+ */
+
+#if defined(__ia64__)
+# define I8042_MAP_IRQ(x) isa_irq_to_vector((x))
+#else
+# define I8042_MAP_IRQ(x) (x)
+#endif
+
+#define I8042_KBD_IRQ i8042_kbd_irq
+#define I8042_AUX_IRQ i8042_aux_irq
+
+static int i8042_kbd_irq;
+static int i8042_aux_irq;
+
+/*
+ * Register numbers.
+ */
+
+#define I8042_COMMAND_REG i8042_command_reg
+#define I8042_STATUS_REG i8042_command_reg
+#define I8042_DATA_REG i8042_data_reg
+
+static int i8042_command_reg = 0x64;
+static int i8042_data_reg = 0x60;
+
+
+static inline int i8042_read_data(void)
+{
+ return inb(I8042_DATA_REG);
+}
+
+static inline int i8042_read_status(void)
+{
+ return inb(I8042_STATUS_REG);
+}
+
+static inline void i8042_write_data(int val)
+{
+ outb(val, I8042_DATA_REG);
+}
+
+static inline void i8042_write_command(int val)
+{
+ outb(val, I8042_COMMAND_REG);
+}
+
+#ifdef CONFIG_X86
+
+#include <linux/dmi.h>
+
+static const struct dmi_system_id __initconst i8042_dmi_noloop_table[] = {
+ {
+ /*
+ * Arima-Rioworks HDAMB -
+ * AUX LOOP command does not raise AUX IRQ
+ */
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "RIOWORKS"),
+ DMI_MATCH(DMI_BOARD_NAME, "HDAMB"),
+ DMI_MATCH(DMI_BOARD_VERSION, "Rev E"),
+ },
+ },
+ {
+ /* ASUS G1S */
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer Inc."),
+ DMI_MATCH(DMI_BOARD_NAME, "G1S"),
+ DMI_MATCH(DMI_BOARD_VERSION, "1.0"),
+ },
+ },
+ {
+ /* ASUS P65UP5 - AUX LOOP command does not raise AUX IRQ */
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."),
+ DMI_MATCH(DMI_BOARD_NAME, "P/I-P65UP5"),
+ DMI_MATCH(DMI_BOARD_VERSION, "REV 2.X"),
+ },
+ },
+ {
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Compaq"),
+ DMI_MATCH(DMI_PRODUCT_NAME , "ProLiant"),
+ DMI_MATCH(DMI_PRODUCT_VERSION, "8500"),
+ },
+ },
+ {
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Compaq"),
+ DMI_MATCH(DMI_PRODUCT_NAME , "ProLiant"),
+ DMI_MATCH(DMI_PRODUCT_VERSION, "DL760"),
+ },
+ },
+ {
+ /* OQO Model 01 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "OQO"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "ZEPTO"),
+ DMI_MATCH(DMI_PRODUCT_VERSION, "00"),
+ },
+ },
+ {
+ /* ULI EV4873 - AUX LOOP does not work properly */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "ULI"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "EV4873"),
+ DMI_MATCH(DMI_PRODUCT_VERSION, "5a"),
+ },
+ },
+ {
+ /* Microsoft Virtual Machine */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Microsoft Corporation"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Virtual Machine"),
+ DMI_MATCH(DMI_PRODUCT_VERSION, "VS2005R2"),
+ },
+ },
+ {
+ /* Medion MAM 2070 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Notebook"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "MAM 2070"),
+ DMI_MATCH(DMI_PRODUCT_VERSION, "5a"),
+ },
+ },
+ {
+ /* Blue FB5601 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "blue"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "FB5601"),
+ DMI_MATCH(DMI_PRODUCT_VERSION, "M606"),
+ },
+ },
+ {
+ /* Gigabyte M912 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "GIGABYTE"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "M912"),
+ DMI_MATCH(DMI_PRODUCT_VERSION, "01"),
+ },
+ },
+ {
+ /* Gigabyte M1022M netbook */
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "Gigabyte Technology Co.,Ltd."),
+ DMI_MATCH(DMI_BOARD_NAME, "M1022E"),
+ DMI_MATCH(DMI_BOARD_VERSION, "1.02"),
+ },
+ },
+ {
+ /* Gigabyte Spring Peak - defines wrong chassis type */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "GIGABYTE"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Spring Peak"),
+ },
+ },
+ {
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion dv9700"),
+ DMI_MATCH(DMI_PRODUCT_VERSION, "Rev 1"),
+ },
+ },
+ { }
+};
+
+/*
+ * Some Fujitsu notebooks are having trouble with touchpads if
+ * active multiplexing mode is activated. Luckily they don't have
+ * external PS/2 ports so we can safely disable it.
+ * ... apparently some Toshibas don't like MUX mode either and
+ * die horrible death on reboot.
+ */
+static const struct dmi_system_id __initconst i8042_dmi_nomux_table[] = {
+ {
+ /* Fujitsu Lifebook P7010/P7010D */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "P7010"),
+ },
+ },
+ {
+ /* Fujitsu Lifebook P7010 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "0000000000"),
+ },
+ },
+ {
+ /* Fujitsu Lifebook P5020D */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "LifeBook P Series"),
+ },
+ },
+ {
+ /* Fujitsu Lifebook S2000 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "LifeBook S Series"),
+ },
+ },
+ {
+ /* Fujitsu Lifebook S6230 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "LifeBook S6230"),
+ },
+ },
+ {
+ /* Fujitsu T70H */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "FMVLT70H"),
+ },
+ },
+ {
+ /* Fujitsu-Siemens Lifebook T3010 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK T3010"),
+ },
+ },
+ {
+ /* Fujitsu-Siemens Lifebook E4010 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK E4010"),
+ },
+ },
+ {
+ /* Fujitsu-Siemens Amilo Pro 2010 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pro V2010"),
+ },
+ },
+ {
+ /* Fujitsu-Siemens Amilo Pro 2030 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "AMILO PRO V2030"),
+ },
+ },
+ {
+ /*
+ * No data is coming from the touchscreen unless KBC
+ * is in legacy mode.
+ */
+ /* Panasonic CF-29 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Matsushita"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "CF-29"),
+ },
+ },
+ {
+ /*
+ * HP Pavilion DV4017EA -
+ * errors on MUX ports are reported without raising AUXDATA
+ * causing "spurious NAK" messages.
+ */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Pavilion dv4000 (EA032EA#ABF)"),
+ },
+ },
+ {
+ /*
+ * HP Pavilion ZT1000 -
+ * like DV4017EA does not raise AUXERR for errors on MUX ports.
+ */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion Notebook PC"),
+ DMI_MATCH(DMI_PRODUCT_VERSION, "HP Pavilion Notebook ZT1000"),
+ },
+ },
+ {
+ /*
+ * HP Pavilion DV4270ca -
+ * like DV4017EA does not raise AUXERR for errors on MUX ports.
+ */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Pavilion dv4000 (EH476UA#ABL)"),
+ },
+ },
+ {
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Satellite P10"),
+ },
+ },
+ {
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "EQUIUM A110"),
+ },
+ },
+ {
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "ALIENWARE"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Sentia"),
+ },
+ },
+ {
+ /* Sharp Actius MM20 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "SHARP"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "PC-MM20 Series"),
+ },
+ },
+ {
+ /* Sony Vaio FS-115b */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "VGN-FS115B"),
+ },
+ },
+ {
+ /*
+ * Sony Vaio FZ-240E -
+ * reset and GET ID commands issued via KBD port are
+ * sometimes being delivered to AUX3.
+ */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "VGN-FZ240E"),
+ },
+ },
+ {
+ /*
+ * Most (all?) VAIOs do not have external PS/2 ports nor
+ * they implement active multiplexing properly, and
+ * MUX discovery usually messes up keyboard/touchpad.
+ */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
+ DMI_MATCH(DMI_BOARD_NAME, "VAIO"),
+ },
+ },
+ {
+ /* Amoi M636/A737 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Amoi Electronics CO.,LTD."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "M636/A737 platform"),
+ },
+ },
+ {
+ /* Lenovo 3000 n100 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "076804U"),
+ },
+ },
+ {
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 1360"),
+ },
+ },
+ {
+ /* Gericom Bellagio */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Gericom"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "N34AS6"),
+ },
+ },
+ {
+ /* IBM 2656 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "IBM"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "2656"),
+ },
+ },
+ {
+ /* Dell XPS M1530 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "XPS M1530"),
+ },
+ },
+ {
+ /* Compal HEL80I */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "COMPAL"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "HEL80I"),
+ },
+ },
+ {
+ /* Dell Vostro 1510 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Vostro1510"),
+ },
+ },
+ {
+ /* Acer Aspire 5536 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5536"),
+ DMI_MATCH(DMI_PRODUCT_VERSION, "0100"),
+ },
+ },
+ {
+ /* Dell Vostro V13 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Vostro V13"),
+ },
+ },
+ {
+ /* Newer HP Pavilion dv4 models */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion dv4 Notebook PC"),
+ },
+ },
+ { }
+};
+
+static const struct dmi_system_id __initconst i8042_dmi_reset_table[] = {
+ {
+ /* MSI Wind U-100 */
+ .matches = {
+ DMI_MATCH(DMI_BOARD_NAME, "U-100"),
+ DMI_MATCH(DMI_BOARD_VENDOR, "MICRO-STAR INTERNATIONAL CO., LTD"),
+ },
+ },
+ {
+ /* LG Electronics X110 */
+ .matches = {
+ DMI_MATCH(DMI_BOARD_NAME, "X110"),
+ DMI_MATCH(DMI_BOARD_VENDOR, "LG Electronics Inc."),
+ },
+ },
+ {
+ /* Acer Aspire One 150 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "AOA150"),
+ },
+ },
+ {
+ /* Advent 4211 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "DIXONSXP"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Advent 4211"),
+ },
+ },
+ {
+ /* Medion Akoya Mini E1210 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "MEDION"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "E1210"),
+ },
+ },
+ {
+ /* Medion Akoya E1222 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "MEDION"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "E122X"),
+ },
+ },
+ {
+ /* Mivvy M310 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "VIOOO"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "N10"),
+ },
+ },
+ {
+ /* Dell Vostro 1320 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Vostro 1320"),
+ },
+ },
+ {
+ /* Dell Vostro 1520 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Vostro 1520"),
+ },
+ },
+ {
+ /* Dell Vostro 1720 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Vostro 1720"),
+ },
+ },
+ { }
+};
+
+#ifdef CONFIG_PNP
+static const struct dmi_system_id __initconst i8042_dmi_nopnp_table[] = {
+ {
+ /* Intel MBO Desktop D845PESV */
+ .matches = {
+ DMI_MATCH(DMI_BOARD_NAME, "D845PESV"),
+ DMI_MATCH(DMI_BOARD_VENDOR, "Intel Corporation"),
+ },
+ },
+ {
+ /* MSI Wind U-100 */
+ .matches = {
+ DMI_MATCH(DMI_BOARD_NAME, "U-100"),
+ DMI_MATCH(DMI_BOARD_VENDOR, "MICRO-STAR INTERNATIONAL CO., LTD"),
+ },
+ },
+ { }
+};
+
+static const struct dmi_system_id __initconst i8042_dmi_laptop_table[] = {
+ {
+ .matches = {
+ DMI_MATCH(DMI_CHASSIS_TYPE, "8"), /* Portable */
+ },
+ },
+ {
+ .matches = {
+ DMI_MATCH(DMI_CHASSIS_TYPE, "9"), /* Laptop */
+ },
+ },
+ {
+ .matches = {
+ DMI_MATCH(DMI_CHASSIS_TYPE, "10"), /* Notebook */
+ },
+ },
+ {
+ .matches = {
+ DMI_MATCH(DMI_CHASSIS_TYPE, "14"), /* Sub-Notebook */
+ },
+ },
+ { }
+};
+#endif
+
+static const struct dmi_system_id __initconst i8042_dmi_notimeout_table[] = {
+ {
+ /* Dell Vostro V13 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Vostro V13"),
+ },
+ },
+ {
+ /* Newer HP Pavilion dv4 models */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion dv4 Notebook PC"),
+ },
+ },
+ { }
+};
+
+/*
+ * Some Wistron based laptops need us to explicitly enable the 'Dritek
+ * keyboard extension' to make their extra keys start generating scancodes.
+ * Originally, this was just confined to older laptops, but a few Acer laptops
+ * have turned up in 2007 that also need this again.
+ */
+static const struct dmi_system_id __initconst i8042_dmi_dritek_table[] = {
+ {
+ /* Acer Aspire 5100 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5100"),
+ },
+ },
+ {
+ /* Acer Aspire 5610 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5610"),
+ },
+ },
+ {
+ /* Acer Aspire 5630 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5630"),
+ },
+ },
+ {
+ /* Acer Aspire 5650 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5650"),
+ },
+ },
+ {
+ /* Acer Aspire 5680 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5680"),
+ },
+ },
+ {
+ /* Acer Aspire 5720 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5720"),
+ },
+ },
+ {
+ /* Acer Aspire 9110 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 9110"),
+ },
+ },
+ {
+ /* Acer TravelMate 660 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 660"),
+ },
+ },
+ {
+ /* Acer TravelMate 2490 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 2490"),
+ },
+ },
+ {
+ /* Acer TravelMate 4280 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 4280"),
+ },
+ },
+ { }
+};
+
+#endif /* CONFIG_X86 */
+
+#ifdef CONFIG_PNP
+#include <linux/pnp.h>
+
+static bool i8042_pnp_kbd_registered;
+static unsigned int i8042_pnp_kbd_devices;
+static bool i8042_pnp_aux_registered;
+static unsigned int i8042_pnp_aux_devices;
+
+static int i8042_pnp_command_reg;
+static int i8042_pnp_data_reg;
+static int i8042_pnp_kbd_irq;
+static int i8042_pnp_aux_irq;
+
+static char i8042_pnp_kbd_name[32];
+static char i8042_pnp_aux_name[32];
+
+static int i8042_pnp_kbd_probe(struct pnp_dev *dev, const struct pnp_device_id *did)
+{
+ if (pnp_port_valid(dev, 0) && pnp_port_len(dev, 0) == 1)
+ i8042_pnp_data_reg = pnp_port_start(dev,0);
+
+ if (pnp_port_valid(dev, 1) && pnp_port_len(dev, 1) == 1)
+ i8042_pnp_command_reg = pnp_port_start(dev, 1);
+
+ if (pnp_irq_valid(dev,0))
+ i8042_pnp_kbd_irq = pnp_irq(dev, 0);
+
+ strlcpy(i8042_pnp_kbd_name, did->id, sizeof(i8042_pnp_kbd_name));
+ if (strlen(pnp_dev_name(dev))) {
+ strlcat(i8042_pnp_kbd_name, ":", sizeof(i8042_pnp_kbd_name));
+ strlcat(i8042_pnp_kbd_name, pnp_dev_name(dev), sizeof(i8042_pnp_kbd_name));
+ }
+
+ /* Keyboard ports are always supposed to be wakeup-enabled */
+ device_set_wakeup_enable(&dev->dev, true);
+
+ i8042_pnp_kbd_devices++;
+ return 0;
+}
+
+static int i8042_pnp_aux_probe(struct pnp_dev *dev, const struct pnp_device_id *did)
+{
+ if (pnp_port_valid(dev, 0) && pnp_port_len(dev, 0) == 1)
+ i8042_pnp_data_reg = pnp_port_start(dev,0);
+
+ if (pnp_port_valid(dev, 1) && pnp_port_len(dev, 1) == 1)
+ i8042_pnp_command_reg = pnp_port_start(dev, 1);
+
+ if (pnp_irq_valid(dev, 0))
+ i8042_pnp_aux_irq = pnp_irq(dev, 0);
+
+ strlcpy(i8042_pnp_aux_name, did->id, sizeof(i8042_pnp_aux_name));
+ if (strlen(pnp_dev_name(dev))) {
+ strlcat(i8042_pnp_aux_name, ":", sizeof(i8042_pnp_aux_name));
+ strlcat(i8042_pnp_aux_name, pnp_dev_name(dev), sizeof(i8042_pnp_aux_name));
+ }
+
+ i8042_pnp_aux_devices++;
+ return 0;
+}
+
+static struct pnp_device_id pnp_kbd_devids[] = {
+ { .id = "PNP0300", .driver_data = 0 },
+ { .id = "PNP0301", .driver_data = 0 },
+ { .id = "PNP0302", .driver_data = 0 },
+ { .id = "PNP0303", .driver_data = 0 },
+ { .id = "PNP0304", .driver_data = 0 },
+ { .id = "PNP0305", .driver_data = 0 },
+ { .id = "PNP0306", .driver_data = 0 },
+ { .id = "PNP0309", .driver_data = 0 },
+ { .id = "PNP030a", .driver_data = 0 },
+ { .id = "PNP030b", .driver_data = 0 },
+ { .id = "PNP0320", .driver_data = 0 },
+ { .id = "PNP0343", .driver_data = 0 },
+ { .id = "PNP0344", .driver_data = 0 },
+ { .id = "PNP0345", .driver_data = 0 },
+ { .id = "CPQA0D7", .driver_data = 0 },
+ { .id = "", },
+};
+
+static struct pnp_driver i8042_pnp_kbd_driver = {
+ .name = "i8042 kbd",
+ .id_table = pnp_kbd_devids,
+ .probe = i8042_pnp_kbd_probe,
+};
+
+static struct pnp_device_id pnp_aux_devids[] = {
+ { .id = "AUI0200", .driver_data = 0 },
+ { .id = "FJC6000", .driver_data = 0 },
+ { .id = "FJC6001", .driver_data = 0 },
+ { .id = "PNP0f03", .driver_data = 0 },
+ { .id = "PNP0f0b", .driver_data = 0 },
+ { .id = "PNP0f0e", .driver_data = 0 },
+ { .id = "PNP0f12", .driver_data = 0 },
+ { .id = "PNP0f13", .driver_data = 0 },
+ { .id = "PNP0f19", .driver_data = 0 },
+ { .id = "PNP0f1c", .driver_data = 0 },
+ { .id = "SYN0801", .driver_data = 0 },
+ { .id = "", },
+};
+
+static struct pnp_driver i8042_pnp_aux_driver = {
+ .name = "i8042 aux",
+ .id_table = pnp_aux_devids,
+ .probe = i8042_pnp_aux_probe,
+};
+
+static void i8042_pnp_exit(void)
+{
+ if (i8042_pnp_kbd_registered) {
+ i8042_pnp_kbd_registered = false;
+ pnp_unregister_driver(&i8042_pnp_kbd_driver);
+ }
+
+ if (i8042_pnp_aux_registered) {
+ i8042_pnp_aux_registered = false;
+ pnp_unregister_driver(&i8042_pnp_aux_driver);
+ }
+}
+
+static int __init i8042_pnp_init(void)
+{
+ char kbd_irq_str[4] = { 0 }, aux_irq_str[4] = { 0 };
+ bool pnp_data_busted = false;
+ int err;
+
+#ifdef CONFIG_X86
+ if (dmi_check_system(i8042_dmi_nopnp_table))
+ i8042_nopnp = true;
+#endif
+
+ if (i8042_nopnp) {
+ pr_info("PNP detection disabled\n");
+ return 0;
+ }
+
+ err = pnp_register_driver(&i8042_pnp_kbd_driver);
+ if (!err)
+ i8042_pnp_kbd_registered = true;
+
+ err = pnp_register_driver(&i8042_pnp_aux_driver);
+ if (!err)
+ i8042_pnp_aux_registered = true;
+
+ if (!i8042_pnp_kbd_devices && !i8042_pnp_aux_devices) {
+ i8042_pnp_exit();
+#if defined(__ia64__)
+ return -ENODEV;
+#else
+ pr_info("PNP: No PS/2 controller found. Probing ports directly.\n");
+ return 0;
+#endif
+ }
+
+ if (i8042_pnp_kbd_devices)
+ snprintf(kbd_irq_str, sizeof(kbd_irq_str),
+ "%d", i8042_pnp_kbd_irq);
+ if (i8042_pnp_aux_devices)
+ snprintf(aux_irq_str, sizeof(aux_irq_str),
+ "%d", i8042_pnp_aux_irq);
+
+ pr_info("PNP: PS/2 Controller [%s%s%s] at %#x,%#x irq %s%s%s\n",
+ i8042_pnp_kbd_name, (i8042_pnp_kbd_devices && i8042_pnp_aux_devices) ? "," : "",
+ i8042_pnp_aux_name,
+ i8042_pnp_data_reg, i8042_pnp_command_reg,
+ kbd_irq_str, (i8042_pnp_kbd_devices && i8042_pnp_aux_devices) ? "," : "",
+ aux_irq_str);
+
+#if defined(__ia64__)
+ if (!i8042_pnp_kbd_devices)
+ i8042_nokbd = true;
+ if (!i8042_pnp_aux_devices)
+ i8042_noaux = true;
+#endif
+
+ if (((i8042_pnp_data_reg & ~0xf) == (i8042_data_reg & ~0xf) &&
+ i8042_pnp_data_reg != i8042_data_reg) ||
+ !i8042_pnp_data_reg) {
+ pr_warn("PNP: PS/2 controller has invalid data port %#x; using default %#x\n",
+ i8042_pnp_data_reg, i8042_data_reg);
+ i8042_pnp_data_reg = i8042_data_reg;
+ pnp_data_busted = true;
+ }
+
+ if (((i8042_pnp_command_reg & ~0xf) == (i8042_command_reg & ~0xf) &&
+ i8042_pnp_command_reg != i8042_command_reg) ||
+ !i8042_pnp_command_reg) {
+ pr_warn("PNP: PS/2 controller has invalid command port %#x; using default %#x\n",
+ i8042_pnp_command_reg, i8042_command_reg);
+ i8042_pnp_command_reg = i8042_command_reg;
+ pnp_data_busted = true;
+ }
+
+ if (!i8042_nokbd && !i8042_pnp_kbd_irq) {
+ pr_warn("PNP: PS/2 controller doesn't have KBD irq; using default %d\n",
+ i8042_kbd_irq);
+ i8042_pnp_kbd_irq = i8042_kbd_irq;
+ pnp_data_busted = true;
+ }
+
+ if (!i8042_noaux && !i8042_pnp_aux_irq) {
+ if (!pnp_data_busted && i8042_pnp_kbd_irq) {
+ pr_warn("PNP: PS/2 appears to have AUX port disabled, "
+ "if this is incorrect please boot with i8042.nopnp\n");
+ i8042_noaux = true;
+ } else {
+ pr_warn("PNP: PS/2 controller doesn't have AUX irq; using default %d\n",
+ i8042_aux_irq);
+ i8042_pnp_aux_irq = i8042_aux_irq;
+ }
+ }
+
+ i8042_data_reg = i8042_pnp_data_reg;
+ i8042_command_reg = i8042_pnp_command_reg;
+ i8042_kbd_irq = i8042_pnp_kbd_irq;
+ i8042_aux_irq = i8042_pnp_aux_irq;
+
+#ifdef CONFIG_X86
+ i8042_bypass_aux_irq_test = !pnp_data_busted &&
+ dmi_check_system(i8042_dmi_laptop_table);
+#endif
+
+ return 0;
+}
+
+#else
+static inline int i8042_pnp_init(void) { return 0; }
+static inline void i8042_pnp_exit(void) { }
+#endif
+
+static int __init i8042_platform_init(void)
+{
+ int retval;
+
+#ifdef CONFIG_X86
+ /* Just return if pre-detection shows no i8042 controller exist */
+ if (!x86_platform.i8042_detect())
+ return -ENODEV;
+#endif
+
+/*
+ * On ix86 platforms touching the i8042 data register region can do really
+ * bad things. Because of this the region is always reserved on ix86 boxes.
+ *
+ * if (!request_region(I8042_DATA_REG, 16, "i8042"))
+ * return -EBUSY;
+ */
+
+ i8042_kbd_irq = I8042_MAP_IRQ(1);
+ i8042_aux_irq = I8042_MAP_IRQ(12);
+
+ retval = i8042_pnp_init();
+ if (retval)
+ return retval;
+
+#if defined(__ia64__)
+ i8042_reset = true;
+#endif
+
+#ifdef CONFIG_X86
+ if (dmi_check_system(i8042_dmi_reset_table))
+ i8042_reset = true;
+
+ if (dmi_check_system(i8042_dmi_noloop_table))
+ i8042_noloop = true;
+
+ if (dmi_check_system(i8042_dmi_nomux_table))
+ i8042_nomux = true;
+
+ if (dmi_check_system(i8042_dmi_notimeout_table))
+ i8042_notimeout = true;
+
+ if (dmi_check_system(i8042_dmi_dritek_table))
+ i8042_dritek = true;
+#endif /* CONFIG_X86 */
+
+ return retval;
+}
+
+static inline void i8042_platform_exit(void)
+{
+ i8042_pnp_exit();
+}
+
+#endif /* _I8042_X86IA64IO_H */
diff --git a/drivers/input/serio/i8042.c b/drivers/input/serio/i8042.c
new file mode 100644
index 0000000..d37a48e
--- /dev/null
+++ b/drivers/input/serio/i8042.c
@@ -0,0 +1,1495 @@
+/*
+ * i8042 keyboard and mouse controller driver for Linux
+ *
+ * Copyright (c) 1999-2004 Vojtech Pavlik
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/types.h>
+#include <linux/delay.h>
+#include <linux/module.h>
+#include <linux/interrupt.h>
+#include <linux/ioport.h>
+#include <linux/init.h>
+#include <linux/serio.h>
+#include <linux/err.h>
+#include <linux/rcupdate.h>
+#include <linux/platform_device.h>
+#include <linux/i8042.h>
+#include <linux/slab.h>
+
+#include <asm/io.h>
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@suse.cz>");
+MODULE_DESCRIPTION("i8042 keyboard and mouse controller driver");
+MODULE_LICENSE("GPL");
+
+static bool i8042_nokbd;
+module_param_named(nokbd, i8042_nokbd, bool, 0);
+MODULE_PARM_DESC(nokbd, "Do not probe or use KBD port.");
+
+static bool i8042_noaux;
+module_param_named(noaux, i8042_noaux, bool, 0);
+MODULE_PARM_DESC(noaux, "Do not probe or use AUX (mouse) port.");
+
+static bool i8042_nomux;
+module_param_named(nomux, i8042_nomux, bool, 0);
+MODULE_PARM_DESC(nomux, "Do not check whether an active multiplexing controller is present.");
+
+static bool i8042_unlock;
+module_param_named(unlock, i8042_unlock, bool, 0);
+MODULE_PARM_DESC(unlock, "Ignore keyboard lock.");
+
+static bool i8042_reset;
+module_param_named(reset, i8042_reset, bool, 0);
+MODULE_PARM_DESC(reset, "Reset controller during init and cleanup.");
+
+static bool i8042_direct;
+module_param_named(direct, i8042_direct, bool, 0);
+MODULE_PARM_DESC(direct, "Put keyboard port into non-translated mode.");
+
+static bool i8042_dumbkbd;
+module_param_named(dumbkbd, i8042_dumbkbd, bool, 0);
+MODULE_PARM_DESC(dumbkbd, "Pretend that controller can only read data from keyboard");
+
+static bool i8042_noloop;
+module_param_named(noloop, i8042_noloop, bool, 0);
+MODULE_PARM_DESC(noloop, "Disable the AUX Loopback command while probing for the AUX port");
+
+static bool i8042_notimeout;
+module_param_named(notimeout, i8042_notimeout, bool, 0);
+MODULE_PARM_DESC(notimeout, "Ignore timeouts signalled by i8042");
+
+#ifdef CONFIG_X86
+static bool i8042_dritek;
+module_param_named(dritek, i8042_dritek, bool, 0);
+MODULE_PARM_DESC(dritek, "Force enable the Dritek keyboard extension");
+#endif
+
+#ifdef CONFIG_PNP
+static bool i8042_nopnp;
+module_param_named(nopnp, i8042_nopnp, bool, 0);
+MODULE_PARM_DESC(nopnp, "Do not use PNP to detect controller settings");
+#endif
+
+#define DEBUG
+#ifdef DEBUG
+static bool i8042_debug;
+module_param_named(debug, i8042_debug, bool, 0600);
+MODULE_PARM_DESC(debug, "Turn i8042 debugging mode on and off");
+#endif
+
+static bool i8042_bypass_aux_irq_test;
+
+#include "i8042.h"
+
+/*
+ * i8042_lock protects serialization between i8042_command and
+ * the interrupt handler.
+ */
+static DEFINE_SPINLOCK(i8042_lock);
+
+/*
+ * Writers to AUX and KBD ports as well as users issuing i8042_command
+ * directly should acquire i8042_mutex (by means of calling
+ * i8042_lock_chip() and i8042_unlock_ship() helpers) to ensure that
+ * they do not disturb each other (unfortunately in many i8042
+ * implementations write to one of the ports will immediately abort
+ * command that is being processed by another port).
+ */
+static DEFINE_MUTEX(i8042_mutex);
+
+struct i8042_port {
+ struct serio *serio;
+ int irq;
+ bool exists;
+ signed char mux;
+};
+
+#define I8042_KBD_PORT_NO 0
+#define I8042_AUX_PORT_NO 1
+#define I8042_MUX_PORT_NO 2
+#define I8042_NUM_PORTS (I8042_NUM_MUX_PORTS + 2)
+
+static struct i8042_port i8042_ports[I8042_NUM_PORTS];
+
+static unsigned char i8042_initial_ctr;
+static unsigned char i8042_ctr;
+static bool i8042_mux_present;
+static bool i8042_kbd_irq_registered;
+static bool i8042_aux_irq_registered;
+static unsigned char i8042_suppress_kbd_ack;
+static struct platform_device *i8042_platform_device;
+
+static irqreturn_t i8042_interrupt(int irq, void *dev_id);
+static bool (*i8042_platform_filter)(unsigned char data, unsigned char str,
+ struct serio *serio);
+
+void i8042_lock_chip(void)
+{
+ mutex_lock(&i8042_mutex);
+}
+EXPORT_SYMBOL(i8042_lock_chip);
+
+void i8042_unlock_chip(void)
+{
+ mutex_unlock(&i8042_mutex);
+}
+EXPORT_SYMBOL(i8042_unlock_chip);
+
+int i8042_install_filter(bool (*filter)(unsigned char data, unsigned char str,
+ struct serio *serio))
+{
+ unsigned long flags;
+ int ret = 0;
+
+ spin_lock_irqsave(&i8042_lock, flags);
+
+ if (i8042_platform_filter) {
+ ret = -EBUSY;
+ goto out;
+ }
+
+ i8042_platform_filter = filter;
+
+out:
+ spin_unlock_irqrestore(&i8042_lock, flags);
+ return ret;
+}
+EXPORT_SYMBOL(i8042_install_filter);
+
+int i8042_remove_filter(bool (*filter)(unsigned char data, unsigned char str,
+ struct serio *port))
+{
+ unsigned long flags;
+ int ret = 0;
+
+ spin_lock_irqsave(&i8042_lock, flags);
+
+ if (i8042_platform_filter != filter) {
+ ret = -EINVAL;
+ goto out;
+ }
+
+ i8042_platform_filter = NULL;
+
+out:
+ spin_unlock_irqrestore(&i8042_lock, flags);
+ return ret;
+}
+EXPORT_SYMBOL(i8042_remove_filter);
+
+/*
+ * The i8042_wait_read() and i8042_wait_write functions wait for the i8042 to
+ * be ready for reading values from it / writing values to it.
+ * Called always with i8042_lock held.
+ */
+
+static int i8042_wait_read(void)
+{
+ int i = 0;
+
+ while ((~i8042_read_status() & I8042_STR_OBF) && (i < I8042_CTL_TIMEOUT)) {
+ udelay(50);
+ i++;
+ }
+ return -(i == I8042_CTL_TIMEOUT);
+}
+
+static int i8042_wait_write(void)
+{
+ int i = 0;
+
+ while ((i8042_read_status() & I8042_STR_IBF) && (i < I8042_CTL_TIMEOUT)) {
+ udelay(50);
+ i++;
+ }
+ return -(i == I8042_CTL_TIMEOUT);
+}
+
+/*
+ * i8042_flush() flushes all data that may be in the keyboard and mouse buffers
+ * of the i8042 down the toilet.
+ */
+
+static int i8042_flush(void)
+{
+ unsigned long flags;
+ unsigned char data, str;
+ int i = 0;
+
+ spin_lock_irqsave(&i8042_lock, flags);
+
+ while (((str = i8042_read_status()) & I8042_STR_OBF) && (i < I8042_BUFFER_SIZE)) {
+ udelay(50);
+ data = i8042_read_data();
+ i++;
+ dbg("%02x <- i8042 (flush, %s)\n",
+ data, str & I8042_STR_AUXDATA ? "aux" : "kbd");
+ }
+
+ spin_unlock_irqrestore(&i8042_lock, flags);
+
+ return i;
+}
+
+/*
+ * i8042_command() executes a command on the i8042. It also sends the input
+ * parameter(s) of the commands to it, and receives the output value(s). The
+ * parameters are to be stored in the param array, and the output is placed
+ * into the same array. The number of the parameters and output values is
+ * encoded in bits 8-11 of the command number.
+ */
+
+static int __i8042_command(unsigned char *param, int command)
+{
+ int i, error;
+
+ if (i8042_noloop && command == I8042_CMD_AUX_LOOP)
+ return -1;
+
+ error = i8042_wait_write();
+ if (error)
+ return error;
+
+ dbg("%02x -> i8042 (command)\n", command & 0xff);
+ i8042_write_command(command & 0xff);
+
+ for (i = 0; i < ((command >> 12) & 0xf); i++) {
+ error = i8042_wait_write();
+ if (error)
+ return error;
+ dbg("%02x -> i8042 (parameter)\n", param[i]);
+ i8042_write_data(param[i]);
+ }
+
+ for (i = 0; i < ((command >> 8) & 0xf); i++) {
+ error = i8042_wait_read();
+ if (error) {
+ dbg(" -- i8042 (timeout)\n");
+ return error;
+ }
+
+ if (command == I8042_CMD_AUX_LOOP &&
+ !(i8042_read_status() & I8042_STR_AUXDATA)) {
+ dbg(" -- i8042 (auxerr)\n");
+ return -1;
+ }
+
+ param[i] = i8042_read_data();
+ dbg("%02x <- i8042 (return)\n", param[i]);
+ }
+
+ return 0;
+}
+
+int i8042_command(unsigned char *param, int command)
+{
+ unsigned long flags;
+ int retval;
+
+ spin_lock_irqsave(&i8042_lock, flags);
+ retval = __i8042_command(param, command);
+ spin_unlock_irqrestore(&i8042_lock, flags);
+
+ return retval;
+}
+EXPORT_SYMBOL(i8042_command);
+
+/*
+ * i8042_kbd_write() sends a byte out through the keyboard interface.
+ */
+
+static int i8042_kbd_write(struct serio *port, unsigned char c)
+{
+ unsigned long flags;
+ int retval = 0;
+
+ spin_lock_irqsave(&i8042_lock, flags);
+
+ if (!(retval = i8042_wait_write())) {
+ dbg("%02x -> i8042 (kbd-data)\n", c);
+ i8042_write_data(c);
+ }
+
+ spin_unlock_irqrestore(&i8042_lock, flags);
+
+ return retval;
+}
+
+/*
+ * i8042_aux_write() sends a byte out through the aux interface.
+ */
+
+static int i8042_aux_write(struct serio *serio, unsigned char c)
+{
+ struct i8042_port *port = serio->port_data;
+
+ return i8042_command(&c, port->mux == -1 ?
+ I8042_CMD_AUX_SEND :
+ I8042_CMD_MUX_SEND + port->mux);
+}
+
+
+/*
+ * i8042_aux_close attempts to clear AUX or KBD port state by disabling
+ * and then re-enabling it.
+ */
+
+static void i8042_port_close(struct serio *serio)
+{
+ int irq_bit;
+ int disable_bit;
+ const char *port_name;
+
+ if (serio == i8042_ports[I8042_AUX_PORT_NO].serio) {
+ irq_bit = I8042_CTR_AUXINT;
+ disable_bit = I8042_CTR_AUXDIS;
+ port_name = "AUX";
+ } else {
+ irq_bit = I8042_CTR_KBDINT;
+ disable_bit = I8042_CTR_KBDDIS;
+ port_name = "KBD";
+ }
+
+ i8042_ctr &= ~irq_bit;
+ if (i8042_command(&i8042_ctr, I8042_CMD_CTL_WCTR))
+ pr_warn("Can't write CTR while closing %s port\n", port_name);
+
+ udelay(50);
+
+ i8042_ctr &= ~disable_bit;
+ i8042_ctr |= irq_bit;
+ if (i8042_command(&i8042_ctr, I8042_CMD_CTL_WCTR))
+ pr_err("Can't reactivate %s port\n", port_name);
+
+ /*
+ * See if there is any data appeared while we were messing with
+ * port state.
+ */
+ i8042_interrupt(0, NULL);
+}
+
+/*
+ * i8042_start() is called by serio core when port is about to finish
+ * registering. It will mark port as existing so i8042_interrupt can
+ * start sending data through it.
+ */
+static int i8042_start(struct serio *serio)
+{
+ struct i8042_port *port = serio->port_data;
+
+ port->exists = true;
+ mb();
+ return 0;
+}
+
+/*
+ * i8042_stop() marks serio port as non-existing so i8042_interrupt
+ * will not try to send data to the port that is about to go away.
+ * The function is called by serio core as part of unregister procedure.
+ */
+static void i8042_stop(struct serio *serio)
+{
+ struct i8042_port *port = serio->port_data;
+
+ port->exists = false;
+
+ /*
+ * We synchronize with both AUX and KBD IRQs because there is
+ * a (very unlikely) chance that AUX IRQ is raised for KBD port
+ * and vice versa.
+ */
+ synchronize_irq(I8042_AUX_IRQ);
+ synchronize_irq(I8042_KBD_IRQ);
+ port->serio = NULL;
+}
+
+/*
+ * i8042_filter() filters out unwanted bytes from the input data stream.
+ * It is called from i8042_interrupt and thus is running with interrupts
+ * off and i8042_lock held.
+ */
+static bool i8042_filter(unsigned char data, unsigned char str,
+ struct serio *serio)
+{
+ if (unlikely(i8042_suppress_kbd_ack)) {
+ if ((~str & I8042_STR_AUXDATA) &&
+ (data == 0xfa || data == 0xfe)) {
+ i8042_suppress_kbd_ack--;
+ dbg("Extra keyboard ACK - filtered out\n");
+ return true;
+ }
+ }
+
+ if (i8042_platform_filter && i8042_platform_filter(data, str, serio)) {
+ dbg("Filtered out by platform filter\n");
+ return true;
+ }
+
+ return false;
+}
+
+/*
+ * i8042_interrupt() is the most important function in this driver -
+ * it handles the interrupts from the i8042, and sends incoming bytes
+ * to the upper layers.
+ */
+
+static irqreturn_t i8042_interrupt(int irq, void *dev_id)
+{
+ struct i8042_port *port;
+ struct serio *serio;
+ unsigned long flags;
+ unsigned char str, data;
+ unsigned int dfl;
+ unsigned int port_no;
+ bool filtered;
+ int ret = 1;
+
+ spin_lock_irqsave(&i8042_lock, flags);
+
+ str = i8042_read_status();
+ if (unlikely(~str & I8042_STR_OBF)) {
+ spin_unlock_irqrestore(&i8042_lock, flags);
+ if (irq)
+ dbg("Interrupt %d, without any data\n", irq);
+ ret = 0;
+ goto out;
+ }
+
+ data = i8042_read_data();
+
+ if (i8042_mux_present && (str & I8042_STR_AUXDATA)) {
+ static unsigned long last_transmit;
+ static unsigned char last_str;
+
+ dfl = 0;
+ if (str & I8042_STR_MUXERR) {
+ dbg("MUX error, status is %02x, data is %02x\n",
+ str, data);
+/*
+ * When MUXERR condition is signalled the data register can only contain
+ * 0xfd, 0xfe or 0xff if implementation follows the spec. Unfortunately
+ * it is not always the case. Some KBCs also report 0xfc when there is
+ * nothing connected to the port while others sometimes get confused which
+ * port the data came from and signal error leaving the data intact. They
+ * _do not_ revert to legacy mode (actually I've never seen KBC reverting
+ * to legacy mode yet, when we see one we'll add proper handling).
+ * Anyway, we process 0xfc, 0xfd, 0xfe and 0xff as timeouts, and for the
+ * rest assume that the data came from the same serio last byte
+ * was transmitted (if transmission happened not too long ago).
+ */
+
+ switch (data) {
+ default:
+ if (time_before(jiffies, last_transmit + HZ/10)) {
+ str = last_str;
+ break;
+ }
+ /* fall through - report timeout */
+ case 0xfc:
+ case 0xfd:
+ case 0xfe: dfl = SERIO_TIMEOUT; data = 0xfe; break;
+ case 0xff: dfl = SERIO_PARITY; data = 0xfe; break;
+ }
+ }
+
+ port_no = I8042_MUX_PORT_NO + ((str >> 6) & 3);
+ last_str = str;
+ last_transmit = jiffies;
+ } else {
+
+ dfl = ((str & I8042_STR_PARITY) ? SERIO_PARITY : 0) |
+ ((str & I8042_STR_TIMEOUT && !i8042_notimeout) ? SERIO_TIMEOUT : 0);
+
+ port_no = (str & I8042_STR_AUXDATA) ?
+ I8042_AUX_PORT_NO : I8042_KBD_PORT_NO;
+ }
+
+ port = &i8042_ports[port_no];
+ serio = port->exists ? port->serio : NULL;
+
+ dbg("%02x <- i8042 (interrupt, %d, %d%s%s)\n",
+ data, port_no, irq,
+ dfl & SERIO_PARITY ? ", bad parity" : "",
+ dfl & SERIO_TIMEOUT ? ", timeout" : "");
+
+ filtered = i8042_filter(data, str, serio);
+
+ spin_unlock_irqrestore(&i8042_lock, flags);
+
+ if (likely(port->exists && !filtered))
+ serio_interrupt(serio, data, dfl);
+
+ out:
+ return IRQ_RETVAL(ret);
+}
+
+/*
+ * i8042_enable_kbd_port enables keyboard port on chip
+ */
+
+static int i8042_enable_kbd_port(void)
+{
+ i8042_ctr &= ~I8042_CTR_KBDDIS;
+ i8042_ctr |= I8042_CTR_KBDINT;
+
+ if (i8042_command(&i8042_ctr, I8042_CMD_CTL_WCTR)) {
+ i8042_ctr &= ~I8042_CTR_KBDINT;
+ i8042_ctr |= I8042_CTR_KBDDIS;
+ pr_err("Failed to enable KBD port\n");
+ return -EIO;
+ }
+
+ return 0;
+}
+
+/*
+ * i8042_enable_aux_port enables AUX (mouse) port on chip
+ */
+
+static int i8042_enable_aux_port(void)
+{
+ i8042_ctr &= ~I8042_CTR_AUXDIS;
+ i8042_ctr |= I8042_CTR_AUXINT;
+
+ if (i8042_command(&i8042_ctr, I8042_CMD_CTL_WCTR)) {
+ i8042_ctr &= ~I8042_CTR_AUXINT;
+ i8042_ctr |= I8042_CTR_AUXDIS;
+ pr_err("Failed to enable AUX port\n");
+ return -EIO;
+ }
+
+ return 0;
+}
+
+/*
+ * i8042_enable_mux_ports enables 4 individual AUX ports after
+ * the controller has been switched into Multiplexed mode
+ */
+
+static int i8042_enable_mux_ports(void)
+{
+ unsigned char param;
+ int i;
+
+ for (i = 0; i < I8042_NUM_MUX_PORTS; i++) {
+ i8042_command(¶m, I8042_CMD_MUX_PFX + i);
+ i8042_command(¶m, I8042_CMD_AUX_ENABLE);
+ }
+
+ return i8042_enable_aux_port();
+}
+
+/*
+ * i8042_set_mux_mode checks whether the controller has an
+ * active multiplexor and puts the chip into Multiplexed (true)
+ * or Legacy (false) mode.
+ */
+
+static int i8042_set_mux_mode(bool multiplex, unsigned char *mux_version)
+{
+
+ unsigned char param, val;
+/*
+ * Get rid of bytes in the queue.
+ */
+
+ i8042_flush();
+
+/*
+ * Internal loopback test - send three bytes, they should come back from the
+ * mouse interface, the last should be version.
+ */
+
+ param = val = 0xf0;
+ if (i8042_command(¶m, I8042_CMD_AUX_LOOP) || param != val)
+ return -1;
+ param = val = multiplex ? 0x56 : 0xf6;
+ if (i8042_command(¶m, I8042_CMD_AUX_LOOP) || param != val)
+ return -1;
+ param = val = multiplex ? 0xa4 : 0xa5;
+ if (i8042_command(¶m, I8042_CMD_AUX_LOOP) || param == val)
+ return -1;
+
+/*
+ * Workaround for interference with USB Legacy emulation
+ * that causes a v10.12 MUX to be found.
+ */
+ if (param == 0xac)
+ return -1;
+
+ if (mux_version)
+ *mux_version = param;
+
+ return 0;
+}
+
+/*
+ * i8042_check_mux() checks whether the controller supports the PS/2 Active
+ * Multiplexing specification by Synaptics, Phoenix, Insyde and
+ * LCS/Telegraphics.
+ */
+
+static int __init i8042_check_mux(void)
+{
+ unsigned char mux_version;
+
+ if (i8042_set_mux_mode(true, &mux_version))
+ return -1;
+
+ pr_info("Detected active multiplexing controller, rev %d.%d\n",
+ (mux_version >> 4) & 0xf, mux_version & 0xf);
+
+/*
+ * Disable all muxed ports by disabling AUX.
+ */
+ i8042_ctr |= I8042_CTR_AUXDIS;
+ i8042_ctr &= ~I8042_CTR_AUXINT;
+
+ if (i8042_command(&i8042_ctr, I8042_CMD_CTL_WCTR)) {
+ pr_err("Failed to disable AUX port, can't use MUX\n");
+ return -EIO;
+ }
+
+ i8042_mux_present = true;
+
+ return 0;
+}
+
+/*
+ * The following is used to test AUX IRQ delivery.
+ */
+static struct completion i8042_aux_irq_delivered __initdata;
+static bool i8042_irq_being_tested __initdata;
+
+static irqreturn_t __init i8042_aux_test_irq(int irq, void *dev_id)
+{
+ unsigned long flags;
+ unsigned char str, data;
+ int ret = 0;
+
+ spin_lock_irqsave(&i8042_lock, flags);
+ str = i8042_read_status();
+ if (str & I8042_STR_OBF) {
+ data = i8042_read_data();
+ dbg("%02x <- i8042 (aux_test_irq, %s)\n",
+ data, str & I8042_STR_AUXDATA ? "aux" : "kbd");
+ if (i8042_irq_being_tested &&
+ data == 0xa5 && (str & I8042_STR_AUXDATA))
+ complete(&i8042_aux_irq_delivered);
+ ret = 1;
+ }
+ spin_unlock_irqrestore(&i8042_lock, flags);
+
+ return IRQ_RETVAL(ret);
+}
+
+/*
+ * i8042_toggle_aux - enables or disables AUX port on i8042 via command and
+ * verifies success by readinng CTR. Used when testing for presence of AUX
+ * port.
+ */
+static int __init i8042_toggle_aux(bool on)
+{
+ unsigned char param;
+ int i;
+
+ if (i8042_command(¶m,
+ on ? I8042_CMD_AUX_ENABLE : I8042_CMD_AUX_DISABLE))
+ return -1;
+
+ /* some chips need some time to set the I8042_CTR_AUXDIS bit */
+ for (i = 0; i < 100; i++) {
+ udelay(50);
+
+ if (i8042_command(¶m, I8042_CMD_CTL_RCTR))
+ return -1;
+
+ if (!(param & I8042_CTR_AUXDIS) == on)
+ return 0;
+ }
+
+ return -1;
+}
+
+/*
+ * i8042_check_aux() applies as much paranoia as it can at detecting
+ * the presence of an AUX interface.
+ */
+
+static int __init i8042_check_aux(void)
+{
+ int retval = -1;
+ bool irq_registered = false;
+ bool aux_loop_broken = false;
+ unsigned long flags;
+ unsigned char param;
+
+/*
+ * Get rid of bytes in the queue.
+ */
+
+ i8042_flush();
+
+/*
+ * Internal loopback test - filters out AT-type i8042's. Unfortunately
+ * SiS screwed up and their 5597 doesn't support the LOOP command even
+ * though it has an AUX port.
+ */
+
+ param = 0x5a;
+ retval = i8042_command(¶m, I8042_CMD_AUX_LOOP);
+ if (retval || param != 0x5a) {
+
+/*
+ * External connection test - filters out AT-soldered PS/2 i8042's
+ * 0x00 - no error, 0x01-0x03 - clock/data stuck, 0xff - general error
+ * 0xfa - no error on some notebooks which ignore the spec
+ * Because it's common for chipsets to return error on perfectly functioning
+ * AUX ports, we test for this only when the LOOP command failed.
+ */
+
+ if (i8042_command(¶m, I8042_CMD_AUX_TEST) ||
+ (param && param != 0xfa && param != 0xff))
+ return -1;
+
+/*
+ * If AUX_LOOP completed without error but returned unexpected data
+ * mark it as broken
+ */
+ if (!retval)
+ aux_loop_broken = true;
+ }
+
+/*
+ * Bit assignment test - filters out PS/2 i8042's in AT mode
+ */
+
+ if (i8042_toggle_aux(false)) {
+ pr_warn("Failed to disable AUX port, but continuing anyway... Is this a SiS?\n");
+ pr_warn("If AUX port is really absent please use the 'i8042.noaux' option\n");
+ }
+
+ if (i8042_toggle_aux(true))
+ return -1;
+
+/*
+ * Test AUX IRQ delivery to make sure BIOS did not grab the IRQ and
+ * used it for a PCI card or somethig else.
+ */
+
+ if (i8042_noloop || i8042_bypass_aux_irq_test || aux_loop_broken) {
+/*
+ * Without LOOP command we can't test AUX IRQ delivery. Assume the port
+ * is working and hope we are right.
+ */
+ retval = 0;
+ goto out;
+ }
+
+ if (request_irq(I8042_AUX_IRQ, i8042_aux_test_irq, IRQF_SHARED,
+ "i8042", i8042_platform_device))
+ goto out;
+
+ irq_registered = true;
+
+ if (i8042_enable_aux_port())
+ goto out;
+
+ spin_lock_irqsave(&i8042_lock, flags);
+
+ init_completion(&i8042_aux_irq_delivered);
+ i8042_irq_being_tested = true;
+
+ param = 0xa5;
+ retval = __i8042_command(¶m, I8042_CMD_AUX_LOOP & 0xf0ff);
+
+ spin_unlock_irqrestore(&i8042_lock, flags);
+
+ if (retval)
+ goto out;
+
+ if (wait_for_completion_timeout(&i8042_aux_irq_delivered,
+ msecs_to_jiffies(250)) == 0) {
+/*
+ * AUX IRQ was never delivered so we need to flush the controller to
+ * get rid of the byte we put there; otherwise keyboard may not work.
+ */
+ dbg(" -- i8042 (aux irq test timeout)\n");
+ i8042_flush();
+ retval = -1;
+ }
+
+ out:
+
+/*
+ * Disable the interface.
+ */
+
+ i8042_ctr |= I8042_CTR_AUXDIS;
+ i8042_ctr &= ~I8042_CTR_AUXINT;
+
+ if (i8042_command(&i8042_ctr, I8042_CMD_CTL_WCTR))
+ retval = -1;
+
+ if (irq_registered)
+ free_irq(I8042_AUX_IRQ, i8042_platform_device);
+
+ return retval;
+}
+
+static int i8042_controller_check(void)
+{
+ if (i8042_flush() == I8042_BUFFER_SIZE) {
+ pr_err("No controller found\n");
+ return -ENODEV;
+ }
+
+ return 0;
+}
+
+static int i8042_controller_selftest(void)
+{
+ unsigned char param;
+ int i = 0;
+
+ /*
+ * We try this 5 times; on some really fragile systems this does not
+ * take the first time...
+ */
+ do {
+
+ if (i8042_command(¶m, I8042_CMD_CTL_TEST)) {
+ pr_err("i8042 controller selftest timeout\n");
+ return -ENODEV;
+ }
+
+ if (param == I8042_RET_CTL_TEST)
+ return 0;
+
+ dbg("i8042 controller selftest: %#x != %#x\n",
+ param, I8042_RET_CTL_TEST);
+ msleep(50);
+ } while (i++ < 5);
+
+#ifdef CONFIG_X86
+ /*
+ * On x86, we don't fail entire i8042 initialization if controller
+ * reset fails in hopes that keyboard port will still be functional
+ * and user will still get a working keyboard. This is especially
+ * important on netbooks. On other arches we trust hardware more.
+ */
+ pr_info("giving up on controller selftest, continuing anyway...\n");
+ return 0;
+#else
+ pr_err("i8042 controller selftest failed\n");
+ return -EIO;
+#endif
+}
+
+/*
+ * i8042_controller init initializes the i8042 controller, and,
+ * most importantly, sets it into non-xlated mode if that's
+ * desired.
+ */
+
+static int i8042_controller_init(void)
+{
+ unsigned long flags;
+ int n = 0;
+ unsigned char ctr[2];
+
+/*
+ * Save the CTR for restore on unload / reboot.
+ */
+
+ do {
+ if (n >= 10) {
+ pr_err("Unable to get stable CTR read\n");
+ return -EIO;
+ }
+
+ if (n != 0)
+ udelay(50);
+
+ if (i8042_command(&ctr[n++ % 2], I8042_CMD_CTL_RCTR)) {
+ pr_err("Can't read CTR while initializing i8042\n");
+ return -EIO;
+ }
+
+ } while (n < 2 || ctr[0] != ctr[1]);
+
+ i8042_initial_ctr = i8042_ctr = ctr[0];
+
+/*
+ * Disable the keyboard interface and interrupt.
+ */
+
+ i8042_ctr |= I8042_CTR_KBDDIS;
+ i8042_ctr &= ~I8042_CTR_KBDINT;
+
+/*
+ * Handle keylock.
+ */
+
+ spin_lock_irqsave(&i8042_lock, flags);
+ if (~i8042_read_status() & I8042_STR_KEYLOCK) {
+ if (i8042_unlock)
+ i8042_ctr |= I8042_CTR_IGNKEYLOCK;
+ else
+ pr_warn("Warning: Keylock active\n");
+ }
+ spin_unlock_irqrestore(&i8042_lock, flags);
+
+/*
+ * If the chip is configured into nontranslated mode by the BIOS, don't
+ * bother enabling translating and be happy.
+ */
+
+ if (~i8042_ctr & I8042_CTR_XLATE)
+ i8042_direct = true;
+
+/*
+ * Set nontranslated mode for the kbd interface if requested by an option.
+ * After this the kbd interface becomes a simple serial in/out, like the aux
+ * interface is. We don't do this by default, since it can confuse notebook
+ * BIOSes.
+ */
+
+ if (i8042_direct)
+ i8042_ctr &= ~I8042_CTR_XLATE;
+
+/*
+ * Write CTR back.
+ */
+
+ if (i8042_command(&i8042_ctr, I8042_CMD_CTL_WCTR)) {
+ pr_err("Can't write CTR while initializing i8042\n");
+ return -EIO;
+ }
+
+/*
+ * Flush whatever accumulated while we were disabling keyboard port.
+ */
+
+ i8042_flush();
+
+ return 0;
+}
+
+
+/*
+ * Reset the controller and reset CRT to the original value set by BIOS.
+ */
+
+static void i8042_controller_reset(void)
+{
+ i8042_flush();
+
+/*
+ * Disable both KBD and AUX interfaces so they don't get in the way
+ */
+
+ i8042_ctr |= I8042_CTR_KBDDIS | I8042_CTR_AUXDIS;
+ i8042_ctr &= ~(I8042_CTR_KBDINT | I8042_CTR_AUXINT);
+
+ if (i8042_command(&i8042_ctr, I8042_CMD_CTL_WCTR))
+ pr_warn("Can't write CTR while resetting\n");
+
+/*
+ * Disable MUX mode if present.
+ */
+
+ if (i8042_mux_present)
+ i8042_set_mux_mode(false, NULL);
+
+/*
+ * Reset the controller if requested.
+ */
+
+ if (i8042_reset)
+ i8042_controller_selftest();
+
+/*
+ * Restore the original control register setting.
+ */
+
+ if (i8042_command(&i8042_initial_ctr, I8042_CMD_CTL_WCTR))
+ pr_warn("Can't restore CTR\n");
+}
+
+
+/*
+ * i8042_panic_blink() will turn the keyboard LEDs on or off and is called
+ * when kernel panics. Flashing LEDs is useful for users running X who may
+ * not see the console and will help distingushing panics from "real"
+ * lockups.
+ *
+ * Note that DELAY has a limit of 10ms so we will not get stuck here
+ * waiting for KBC to free up even if KBD interrupt is off
+ */
+
+#define DELAY do { mdelay(1); if (++delay > 10) return delay; } while(0)
+
+static long i8042_panic_blink(int state)
+{
+ long delay = 0;
+ char led;
+
+ led = (state) ? 0x01 | 0x04 : 0;
+ while (i8042_read_status() & I8042_STR_IBF)
+ DELAY;
+ dbg("%02x -> i8042 (panic blink)\n", 0xed);
+ i8042_suppress_kbd_ack = 2;
+ i8042_write_data(0xed); /* set leds */
+ DELAY;
+ while (i8042_read_status() & I8042_STR_IBF)
+ DELAY;
+ DELAY;
+ dbg("%02x -> i8042 (panic blink)\n", led);
+ i8042_write_data(led);
+ DELAY;
+ return delay;
+}
+
+#undef DELAY
+
+#ifdef CONFIG_X86
+static void i8042_dritek_enable(void)
+{
+ unsigned char param = 0x90;
+ int error;
+
+ error = i8042_command(¶m, 0x1059);
+ if (error)
+ pr_warn("Failed to enable DRITEK extension: %d\n", error);
+}
+#endif
+
+#ifdef CONFIG_PM
+
+/*
+ * Here we try to reset everything back to a state we had
+ * before suspending.
+ */
+
+static int i8042_controller_resume(bool force_reset)
+{
+ int error;
+
+ error = i8042_controller_check();
+ if (error)
+ return error;
+
+ if (i8042_reset || force_reset) {
+ error = i8042_controller_selftest();
+ if (error)
+ return error;
+ }
+
+/*
+ * Restore original CTR value and disable all ports
+ */
+
+ i8042_ctr = i8042_initial_ctr;
+ if (i8042_direct)
+ i8042_ctr &= ~I8042_CTR_XLATE;
+ i8042_ctr |= I8042_CTR_AUXDIS | I8042_CTR_KBDDIS;
+ i8042_ctr &= ~(I8042_CTR_AUXINT | I8042_CTR_KBDINT);
+ if (i8042_command(&i8042_ctr, I8042_CMD_CTL_WCTR)) {
+ pr_warn("Can't write CTR to resume, retrying...\n");
+ msleep(50);
+ if (i8042_command(&i8042_ctr, I8042_CMD_CTL_WCTR)) {
+ pr_err("CTR write retry failed\n");
+ return -EIO;
+ }
+ }
+
+
+#ifdef CONFIG_X86
+ if (i8042_dritek)
+ i8042_dritek_enable();
+#endif
+
+ if (i8042_mux_present) {
+ if (i8042_set_mux_mode(true, NULL) || i8042_enable_mux_ports())
+ pr_warn("failed to resume active multiplexor, mouse won't work\n");
+ } else if (i8042_ports[I8042_AUX_PORT_NO].serio)
+ i8042_enable_aux_port();
+
+ if (i8042_ports[I8042_KBD_PORT_NO].serio)
+ i8042_enable_kbd_port();
+
+ i8042_interrupt(0, NULL);
+
+ return 0;
+}
+
+/*
+ * Here we try to restore the original BIOS settings to avoid
+ * upsetting it.
+ */
+
+static int i8042_pm_reset(struct device *dev)
+{
+ i8042_controller_reset();
+
+ return 0;
+}
+
+static int i8042_pm_resume(struct device *dev)
+{
+ /*
+ * On resume from S2R we always try to reset the controller
+ * to bring it in a sane state. (In case of S2D we expect
+ * BIOS to reset the controller for us.)
+ */
+ return i8042_controller_resume(true);
+}
+
+static int i8042_pm_thaw(struct device *dev)
+{
+ i8042_interrupt(0, NULL);
+
+ return 0;
+}
+
+static int i8042_pm_restore(struct device *dev)
+{
+ return i8042_controller_resume(false);
+}
+
+static const struct dev_pm_ops i8042_pm_ops = {
+ .suspend = i8042_pm_reset,
+ .resume = i8042_pm_resume,
+ .thaw = i8042_pm_thaw,
+ .poweroff = i8042_pm_reset,
+ .restore = i8042_pm_restore,
+};
+
+#endif /* CONFIG_PM */
+
+/*
+ * We need to reset the 8042 back to original mode on system shutdown,
+ * because otherwise BIOSes will be confused.
+ */
+
+static void i8042_shutdown(struct platform_device *dev)
+{
+ i8042_controller_reset();
+}
+
+static int __init i8042_create_kbd_port(void)
+{
+ struct serio *serio;
+ struct i8042_port *port = &i8042_ports[I8042_KBD_PORT_NO];
+
+ serio = kzalloc(sizeof(struct serio), GFP_KERNEL);
+ if (!serio)
+ return -ENOMEM;
+
+ serio->id.type = i8042_direct ? SERIO_8042 : SERIO_8042_XL;
+ serio->write = i8042_dumbkbd ? NULL : i8042_kbd_write;
+ serio->start = i8042_start;
+ serio->stop = i8042_stop;
+ serio->close = i8042_port_close;
+ serio->port_data = port;
+ serio->dev.parent = &i8042_platform_device->dev;
+ strlcpy(serio->name, "i8042 KBD port", sizeof(serio->name));
+ strlcpy(serio->phys, I8042_KBD_PHYS_DESC, sizeof(serio->phys));
+
+ port->serio = serio;
+ port->irq = I8042_KBD_IRQ;
+
+ return 0;
+}
+
+static int __init i8042_create_aux_port(int idx)
+{
+ struct serio *serio;
+ int port_no = idx < 0 ? I8042_AUX_PORT_NO : I8042_MUX_PORT_NO + idx;
+ struct i8042_port *port = &i8042_ports[port_no];
+
+ serio = kzalloc(sizeof(struct serio), GFP_KERNEL);
+ if (!serio)
+ return -ENOMEM;
+
+ serio->id.type = SERIO_8042;
+ serio->write = i8042_aux_write;
+ serio->start = i8042_start;
+ serio->stop = i8042_stop;
+ serio->port_data = port;
+ serio->dev.parent = &i8042_platform_device->dev;
+ if (idx < 0) {
+ strlcpy(serio->name, "i8042 AUX port", sizeof(serio->name));
+ strlcpy(serio->phys, I8042_AUX_PHYS_DESC, sizeof(serio->phys));
+ serio->close = i8042_port_close;
+ } else {
+ snprintf(serio->name, sizeof(serio->name), "i8042 AUX%d port", idx);
+ snprintf(serio->phys, sizeof(serio->phys), I8042_MUX_PHYS_DESC, idx + 1);
+ }
+
+ port->serio = serio;
+ port->mux = idx;
+ port->irq = I8042_AUX_IRQ;
+
+ return 0;
+}
+
+static void __init i8042_free_kbd_port(void)
+{
+ kfree(i8042_ports[I8042_KBD_PORT_NO].serio);
+ i8042_ports[I8042_KBD_PORT_NO].serio = NULL;
+}
+
+static void __init i8042_free_aux_ports(void)
+{
+ int i;
+
+ for (i = I8042_AUX_PORT_NO; i < I8042_NUM_PORTS; i++) {
+ kfree(i8042_ports[i].serio);
+ i8042_ports[i].serio = NULL;
+ }
+}
+
+static void __init i8042_register_ports(void)
+{
+ int i;
+
+ for (i = 0; i < I8042_NUM_PORTS; i++) {
+ if (i8042_ports[i].serio) {
+ printk(KERN_INFO "serio: %s at %#lx,%#lx irq %d\n",
+ i8042_ports[i].serio->name,
+ (unsigned long) I8042_DATA_REG,
+ (unsigned long) I8042_COMMAND_REG,
+ i8042_ports[i].irq);
+ serio_register_port(i8042_ports[i].serio);
+ }
+ }
+}
+
+static void __devexit i8042_unregister_ports(void)
+{
+ int i;
+
+ for (i = 0; i < I8042_NUM_PORTS; i++) {
+ if (i8042_ports[i].serio) {
+ serio_unregister_port(i8042_ports[i].serio);
+ i8042_ports[i].serio = NULL;
+ }
+ }
+}
+
+/*
+ * Checks whether port belongs to i8042 controller.
+ */
+bool i8042_check_port_owner(const struct serio *port)
+{
+ int i;
+
+ for (i = 0; i < I8042_NUM_PORTS; i++)
+ if (i8042_ports[i].serio == port)
+ return true;
+
+ return false;
+}
+EXPORT_SYMBOL(i8042_check_port_owner);
+
+static void i8042_free_irqs(void)
+{
+ if (i8042_aux_irq_registered)
+ free_irq(I8042_AUX_IRQ, i8042_platform_device);
+ if (i8042_kbd_irq_registered)
+ free_irq(I8042_KBD_IRQ, i8042_platform_device);
+
+ i8042_aux_irq_registered = i8042_kbd_irq_registered = false;
+}
+
+static int __init i8042_setup_aux(void)
+{
+ int (*aux_enable)(void);
+ int error;
+ int i;
+
+ if (i8042_check_aux())
+ return -ENODEV;
+
+ if (i8042_nomux || i8042_check_mux()) {
+ error = i8042_create_aux_port(-1);
+ if (error)
+ goto err_free_ports;
+ aux_enable = i8042_enable_aux_port;
+ } else {
+ for (i = 0; i < I8042_NUM_MUX_PORTS; i++) {
+ error = i8042_create_aux_port(i);
+ if (error)
+ goto err_free_ports;
+ }
+ aux_enable = i8042_enable_mux_ports;
+ }
+
+ error = request_irq(I8042_AUX_IRQ, i8042_interrupt, IRQF_SHARED,
+ "i8042", i8042_platform_device);
+ if (error)
+ goto err_free_ports;
+
+ if (aux_enable())
+ goto err_free_irq;
+
+ i8042_aux_irq_registered = true;
+ return 0;
+
+ err_free_irq:
+ free_irq(I8042_AUX_IRQ, i8042_platform_device);
+ err_free_ports:
+ i8042_free_aux_ports();
+ return error;
+}
+
+static int __init i8042_setup_kbd(void)
+{
+ int error;
+
+ error = i8042_create_kbd_port();
+ if (error)
+ return error;
+
+ error = request_irq(I8042_KBD_IRQ, i8042_interrupt, IRQF_SHARED,
+ "i8042", i8042_platform_device);
+ if (error)
+ goto err_free_port;
+
+ error = i8042_enable_kbd_port();
+ if (error)
+ goto err_free_irq;
+
+ i8042_kbd_irq_registered = true;
+ return 0;
+
+ err_free_irq:
+ free_irq(I8042_KBD_IRQ, i8042_platform_device);
+ err_free_port:
+ i8042_free_kbd_port();
+ return error;
+}
+
+static int __init i8042_probe(struct platform_device *dev)
+{
+ int error;
+
+ i8042_platform_device = dev;
+
+ if (i8042_reset) {
+ error = i8042_controller_selftest();
+ if (error)
+ return error;
+ }
+
+ error = i8042_controller_init();
+ if (error)
+ return error;
+
+#ifdef CONFIG_X86
+ if (i8042_dritek)
+ i8042_dritek_enable();
+#endif
+
+ if (!i8042_noaux) {
+ error = i8042_setup_aux();
+ if (error && error != -ENODEV && error != -EBUSY)
+ goto out_fail;
+ }
+
+ if (!i8042_nokbd) {
+ error = i8042_setup_kbd();
+ if (error)
+ goto out_fail;
+ }
+/*
+ * Ok, everything is ready, let's register all serio ports
+ */
+ i8042_register_ports();
+
+ return 0;
+
+ out_fail:
+ i8042_free_aux_ports(); /* in case KBD failed but AUX not */
+ i8042_free_irqs();
+ i8042_controller_reset();
+ i8042_platform_device = NULL;
+
+ return error;
+}
+
+static int __devexit i8042_remove(struct platform_device *dev)
+{
+ i8042_unregister_ports();
+ i8042_free_irqs();
+ i8042_controller_reset();
+ i8042_platform_device = NULL;
+
+ return 0;
+}
+
+static struct platform_driver i8042_driver = {
+ .driver = {
+ .name = "i8042",
+ .owner = THIS_MODULE,
+#ifdef CONFIG_PM
+ .pm = &i8042_pm_ops,
+#endif
+ },
+ .remove = __devexit_p(i8042_remove),
+ .shutdown = i8042_shutdown,
+};
+
+static int __init i8042_init(void)
+{
+ struct platform_device *pdev;
+ int err;
+
+ dbg_init();
+
+ err = i8042_platform_init();
+ if (err)
+ return err;
+
+ err = i8042_controller_check();
+ if (err)
+ goto err_platform_exit;
+
+ pdev = platform_create_bundle(&i8042_driver, i8042_probe, NULL, 0, NULL, 0);
+ if (IS_ERR(pdev)) {
+ err = PTR_ERR(pdev);
+ goto err_platform_exit;
+ }
+
+ panic_blink = i8042_panic_blink;
+
+ return 0;
+
+ err_platform_exit:
+ i8042_platform_exit();
+ return err;
+}
+
+static void __exit i8042_exit(void)
+{
+ platform_device_unregister(i8042_platform_device);
+ platform_driver_unregister(&i8042_driver);
+ i8042_platform_exit();
+
+ panic_blink = NULL;
+}
+
+module_init(i8042_init);
+module_exit(i8042_exit);
diff --git a/drivers/input/serio/i8042.h b/drivers/input/serio/i8042.h
new file mode 100644
index 0000000..3452708
--- /dev/null
+++ b/drivers/input/serio/i8042.h
@@ -0,0 +1,109 @@
+#ifndef _I8042_H
+#define _I8042_H
+
+
+/*
+ * Copyright (c) 1999-2002 Vojtech Pavlik
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ */
+
+/*
+ * Arch-dependent inline functions and defines.
+ */
+
+#if defined(CONFIG_MACH_JAZZ)
+#include "i8042-jazzio.h"
+#elif defined(CONFIG_SGI_HAS_I8042)
+#include "i8042-ip22io.h"
+#elif defined(CONFIG_SNI_RM)
+#include "i8042-snirm.h"
+#elif defined(CONFIG_PPC)
+#include "i8042-ppcio.h"
+#elif defined(CONFIG_SPARC)
+#include "i8042-sparcio.h"
+#elif defined(CONFIG_X86) || defined(CONFIG_IA64)
+#include "i8042-x86ia64io.h"
+#elif defined(CONFIG_UNICORE32)
+#include "i8042-unicore32io.h"
+#else
+#include "i8042-io.h"
+#endif
+
+/*
+ * This is in 50us units, the time we wait for the i8042 to react. This
+ * has to be long enough for the i8042 itself to timeout on sending a byte
+ * to a non-existent mouse.
+ */
+
+#define I8042_CTL_TIMEOUT 10000
+
+/*
+ * Status register bits.
+ */
+
+#define I8042_STR_PARITY 0x80
+#define I8042_STR_TIMEOUT 0x40
+#define I8042_STR_AUXDATA 0x20
+#define I8042_STR_KEYLOCK 0x10
+#define I8042_STR_CMDDAT 0x08
+#define I8042_STR_MUXERR 0x04
+#define I8042_STR_IBF 0x02
+#define I8042_STR_OBF 0x01
+
+/*
+ * Control register bits.
+ */
+
+#define I8042_CTR_KBDINT 0x01
+#define I8042_CTR_AUXINT 0x02
+#define I8042_CTR_IGNKEYLOCK 0x08
+#define I8042_CTR_KBDDIS 0x10
+#define I8042_CTR_AUXDIS 0x20
+#define I8042_CTR_XLATE 0x40
+
+/*
+ * Return codes.
+ */
+
+#define I8042_RET_CTL_TEST 0x55
+
+/*
+ * Expected maximum internal i8042 buffer size. This is used for flushing
+ * the i8042 buffers.
+ */
+
+#define I8042_BUFFER_SIZE 16
+
+/*
+ * Number of AUX ports on controllers supporting active multiplexing
+ * specification
+ */
+
+#define I8042_NUM_MUX_PORTS 4
+
+/*
+ * Debug.
+ */
+
+#ifdef DEBUG
+static unsigned long i8042_start_time;
+#define dbg_init() do { i8042_start_time = jiffies; } while (0)
+#define dbg(format, arg...) \
+ do { \
+ if (i8042_debug) \
+ printk(KERN_DEBUG KBUILD_MODNAME ": [%d] " format, \
+ (int) (jiffies - i8042_start_time), ##arg); \
+ } while (0)
+#else
+#define dbg_init() do { } while (0)
+#define dbg(format, arg...) \
+ do { \
+ if (0) \
+ printk(KERN_DEBUG pr_fmt(format), ##arg); \
+ } while (0)
+#endif
+
+#endif /* _I8042_H */
diff --git a/drivers/input/serio/libps2.c b/drivers/input/serio/libps2.c
new file mode 100644
index 0000000..07a8363
--- /dev/null
+++ b/drivers/input/serio/libps2.c
@@ -0,0 +1,375 @@
+/*
+ * PS/2 driver library
+ *
+ * Copyright (c) 1999-2002 Vojtech Pavlik
+ * Copyright (c) 2004 Dmitry Torokhov
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ */
+
+#include <linux/delay.h>
+#include <linux/module.h>
+#include <linux/sched.h>
+#include <linux/interrupt.h>
+#include <linux/input.h>
+#include <linux/serio.h>
+#include <linux/i8042.h>
+#include <linux/init.h>
+#include <linux/libps2.h>
+
+#define DRIVER_DESC "PS/2 driver library"
+
+MODULE_AUTHOR("Dmitry Torokhov <dtor@mail.ru>");
+MODULE_DESCRIPTION("PS/2 driver library");
+MODULE_LICENSE("GPL");
+
+/*
+ * ps2_sendbyte() sends a byte to the device and waits for acknowledge.
+ * It doesn't handle retransmission, though it could - because if there
+ * is a need for retransmissions device has to be replaced anyway.
+ *
+ * ps2_sendbyte() can only be called from a process context.
+ */
+
+int ps2_sendbyte(struct ps2dev *ps2dev, unsigned char byte, int timeout)
+{
+ serio_pause_rx(ps2dev->serio);
+ ps2dev->nak = 1;
+ ps2dev->flags |= PS2_FLAG_ACK;
+ serio_continue_rx(ps2dev->serio);
+
+ if (serio_write(ps2dev->serio, byte) == 0)
+ wait_event_timeout(ps2dev->wait,
+ !(ps2dev->flags & PS2_FLAG_ACK),
+ msecs_to_jiffies(timeout));
+
+ serio_pause_rx(ps2dev->serio);
+ ps2dev->flags &= ~PS2_FLAG_ACK;
+ serio_continue_rx(ps2dev->serio);
+
+ return -ps2dev->nak;
+}
+EXPORT_SYMBOL(ps2_sendbyte);
+
+void ps2_begin_command(struct ps2dev *ps2dev)
+{
+ mutex_lock(&ps2dev->cmd_mutex);
+
+ if (i8042_check_port_owner(ps2dev->serio))
+ i8042_lock_chip();
+}
+EXPORT_SYMBOL(ps2_begin_command);
+
+void ps2_end_command(struct ps2dev *ps2dev)
+{
+ if (i8042_check_port_owner(ps2dev->serio))
+ i8042_unlock_chip();
+
+ mutex_unlock(&ps2dev->cmd_mutex);
+}
+EXPORT_SYMBOL(ps2_end_command);
+
+/*
+ * ps2_drain() waits for device to transmit requested number of bytes
+ * and discards them.
+ */
+
+void ps2_drain(struct ps2dev *ps2dev, int maxbytes, int timeout)
+{
+ if (maxbytes > sizeof(ps2dev->cmdbuf)) {
+ WARN_ON(1);
+ maxbytes = sizeof(ps2dev->cmdbuf);
+ }
+
+ ps2_begin_command(ps2dev);
+
+ serio_pause_rx(ps2dev->serio);
+ ps2dev->flags = PS2_FLAG_CMD;
+ ps2dev->cmdcnt = maxbytes;
+ serio_continue_rx(ps2dev->serio);
+
+ wait_event_timeout(ps2dev->wait,
+ !(ps2dev->flags & PS2_FLAG_CMD),
+ msecs_to_jiffies(timeout));
+
+ ps2_end_command(ps2dev);
+}
+EXPORT_SYMBOL(ps2_drain);
+
+/*
+ * ps2_is_keyboard_id() checks received ID byte against the list of
+ * known keyboard IDs.
+ */
+
+int ps2_is_keyboard_id(char id_byte)
+{
+ static const char keyboard_ids[] = {
+ 0xab, /* Regular keyboards */
+ 0xac, /* NCD Sun keyboard */
+ 0x2b, /* Trust keyboard, translated */
+ 0x5d, /* Trust keyboard */
+ 0x60, /* NMB SGI keyboard, translated */
+ 0x47, /* NMB SGI keyboard */
+ };
+
+ return memchr(keyboard_ids, id_byte, sizeof(keyboard_ids)) != NULL;
+}
+EXPORT_SYMBOL(ps2_is_keyboard_id);
+
+/*
+ * ps2_adjust_timeout() is called after receiving 1st byte of command
+ * response and tries to reduce remaining timeout to speed up command
+ * completion.
+ */
+
+static int ps2_adjust_timeout(struct ps2dev *ps2dev, int command, int timeout)
+{
+ switch (command) {
+ case PS2_CMD_RESET_BAT:
+ /*
+ * Device has sent the first response byte after
+ * reset command, reset is thus done, so we can
+ * shorten the timeout.
+ * The next byte will come soon (keyboard) or not
+ * at all (mouse).
+ */
+ if (timeout > msecs_to_jiffies(100))
+ timeout = msecs_to_jiffies(100);
+ break;
+
+ case PS2_CMD_GETID:
+ /*
+ * Microsoft Natural Elite keyboard responds to
+ * the GET ID command as it were a mouse, with
+ * a single byte. Fail the command so atkbd will
+ * use alternative probe to detect it.
+ */
+ if (ps2dev->cmdbuf[1] == 0xaa) {
+ serio_pause_rx(ps2dev->serio);
+ ps2dev->flags = 0;
+ serio_continue_rx(ps2dev->serio);
+ timeout = 0;
+ }
+
+ /*
+ * If device behind the port is not a keyboard there
+ * won't be 2nd byte of ID response.
+ */
+ if (!ps2_is_keyboard_id(ps2dev->cmdbuf[1])) {
+ serio_pause_rx(ps2dev->serio);
+ ps2dev->flags = ps2dev->cmdcnt = 0;
+ serio_continue_rx(ps2dev->serio);
+ timeout = 0;
+ }
+ break;
+
+ default:
+ break;
+ }
+
+ return timeout;
+}
+
+/*
+ * ps2_command() sends a command and its parameters to the mouse,
+ * then waits for the response and puts it in the param array.
+ *
+ * ps2_command() can only be called from a process context
+ */
+
+int __ps2_command(struct ps2dev *ps2dev, unsigned char *param, int command)
+{
+ int timeout;
+ int send = (command >> 12) & 0xf;
+ int receive = (command >> 8) & 0xf;
+ int rc = -1;
+ int i;
+
+ if (receive > sizeof(ps2dev->cmdbuf)) {
+ WARN_ON(1);
+ return -1;
+ }
+
+ if (send && !param) {
+ WARN_ON(1);
+ return -1;
+ }
+
+ serio_pause_rx(ps2dev->serio);
+ ps2dev->flags = command == PS2_CMD_GETID ? PS2_FLAG_WAITID : 0;
+ ps2dev->cmdcnt = receive;
+ if (receive && param)
+ for (i = 0; i < receive; i++)
+ ps2dev->cmdbuf[(receive - 1) - i] = param[i];
+ serio_continue_rx(ps2dev->serio);
+
+ /*
+ * Some devices (Synaptics) peform the reset before
+ * ACKing the reset command, and so it can take a long
+ * time before the ACK arrives.
+ */
+ if (ps2_sendbyte(ps2dev, command & 0xff,
+ command == PS2_CMD_RESET_BAT ? 1000 : 200))
+ goto out;
+
+ for (i = 0; i < send; i++)
+ if (ps2_sendbyte(ps2dev, param[i], 200))
+ goto out;
+
+ /*
+ * The reset command takes a long time to execute.
+ */
+ timeout = msecs_to_jiffies(command == PS2_CMD_RESET_BAT ? 4000 : 500);
+
+ timeout = wait_event_timeout(ps2dev->wait,
+ !(ps2dev->flags & PS2_FLAG_CMD1), timeout);
+
+ if (ps2dev->cmdcnt && !(ps2dev->flags & PS2_FLAG_CMD1)) {
+
+ timeout = ps2_adjust_timeout(ps2dev, command, timeout);
+ wait_event_timeout(ps2dev->wait,
+ !(ps2dev->flags & PS2_FLAG_CMD), timeout);
+ }
+
+ if (param)
+ for (i = 0; i < receive; i++)
+ param[i] = ps2dev->cmdbuf[(receive - 1) - i];
+
+ if (ps2dev->cmdcnt && (command != PS2_CMD_RESET_BAT || ps2dev->cmdcnt != 1))
+ goto out;
+
+ rc = 0;
+
+ out:
+ serio_pause_rx(ps2dev->serio);
+ ps2dev->flags = 0;
+ serio_continue_rx(ps2dev->serio);
+
+ return rc;
+}
+EXPORT_SYMBOL(__ps2_command);
+
+int ps2_command(struct ps2dev *ps2dev, unsigned char *param, int command)
+{
+ int rc;
+
+ ps2_begin_command(ps2dev);
+ rc = __ps2_command(ps2dev, param, command);
+ ps2_end_command(ps2dev);
+
+ return rc;
+}
+EXPORT_SYMBOL(ps2_command);
+
+/*
+ * ps2_init() initializes ps2dev structure
+ */
+
+void ps2_init(struct ps2dev *ps2dev, struct serio *serio)
+{
+ mutex_init(&ps2dev->cmd_mutex);
+ lockdep_set_subclass(&ps2dev->cmd_mutex, serio->depth);
+ init_waitqueue_head(&ps2dev->wait);
+ ps2dev->serio = serio;
+}
+EXPORT_SYMBOL(ps2_init);
+
+/*
+ * ps2_handle_ack() is supposed to be used in interrupt handler
+ * to properly process ACK/NAK of a command from a PS/2 device.
+ */
+
+int ps2_handle_ack(struct ps2dev *ps2dev, unsigned char data)
+{
+ switch (data) {
+ case PS2_RET_ACK:
+ ps2dev->nak = 0;
+ break;
+
+ case PS2_RET_NAK:
+ ps2dev->flags |= PS2_FLAG_NAK;
+ ps2dev->nak = PS2_RET_NAK;
+ break;
+
+ case PS2_RET_ERR:
+ if (ps2dev->flags & PS2_FLAG_NAK) {
+ ps2dev->flags &= ~PS2_FLAG_NAK;
+ ps2dev->nak = PS2_RET_ERR;
+ break;
+ }
+
+ /*
+ * Workaround for mice which don't ACK the Get ID command.
+ * These are valid mouse IDs that we recognize.
+ */
+ case 0x00:
+ case 0x03:
+ case 0x04:
+ if (ps2dev->flags & PS2_FLAG_WAITID) {
+ ps2dev->nak = 0;
+ break;
+ }
+ /* Fall through */
+ default:
+ return 0;
+ }
+
+
+ if (!ps2dev->nak) {
+ ps2dev->flags &= ~PS2_FLAG_NAK;
+ if (ps2dev->cmdcnt)
+ ps2dev->flags |= PS2_FLAG_CMD | PS2_FLAG_CMD1;
+ }
+
+ ps2dev->flags &= ~PS2_FLAG_ACK;
+ wake_up(&ps2dev->wait);
+
+ if (data != PS2_RET_ACK)
+ ps2_handle_response(ps2dev, data);
+
+ return 1;
+}
+EXPORT_SYMBOL(ps2_handle_ack);
+
+/*
+ * ps2_handle_response() is supposed to be used in interrupt handler
+ * to properly store device's response to a command and notify process
+ * waiting for completion of the command.
+ */
+
+int ps2_handle_response(struct ps2dev *ps2dev, unsigned char data)
+{
+ if (ps2dev->cmdcnt)
+ ps2dev->cmdbuf[--ps2dev->cmdcnt] = data;
+
+ if (ps2dev->flags & PS2_FLAG_CMD1) {
+ ps2dev->flags &= ~PS2_FLAG_CMD1;
+ if (ps2dev->cmdcnt)
+ wake_up(&ps2dev->wait);
+ }
+
+ if (!ps2dev->cmdcnt) {
+ ps2dev->flags &= ~PS2_FLAG_CMD;
+ wake_up(&ps2dev->wait);
+ }
+
+ return 1;
+}
+EXPORT_SYMBOL(ps2_handle_response);
+
+void ps2_cmd_aborted(struct ps2dev *ps2dev)
+{
+ if (ps2dev->flags & PS2_FLAG_ACK)
+ ps2dev->nak = 1;
+
+ if (ps2dev->flags & (PS2_FLAG_ACK | PS2_FLAG_CMD))
+ wake_up(&ps2dev->wait);
+
+ /* reset all flags except last nack */
+ ps2dev->flags &= PS2_FLAG_NAK;
+}
+EXPORT_SYMBOL(ps2_cmd_aborted);
diff --git a/drivers/input/serio/maceps2.c b/drivers/input/serio/maceps2.c
new file mode 100644
index 0000000..558200e
--- /dev/null
+++ b/drivers/input/serio/maceps2.c
@@ -0,0 +1,211 @@
+/*
+ * SGI O2 MACE PS2 controller driver for linux
+ *
+ * Copyright (C) 2002 Vivien Chappelier
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation
+ */
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/serio.h>
+#include <linux/errno.h>
+#include <linux/interrupt.h>
+#include <linux/ioport.h>
+#include <linux/delay.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <linux/spinlock.h>
+#include <linux/err.h>
+
+#include <asm/io.h>
+#include <asm/irq.h>
+#include <asm/system.h>
+#include <asm/ip32/mace.h>
+#include <asm/ip32/ip32_ints.h>
+
+MODULE_AUTHOR("Vivien Chappelier <vivien.chappelier@linux-mips.org");
+MODULE_DESCRIPTION("SGI O2 MACE PS2 controller driver");
+MODULE_LICENSE("GPL");
+
+#define MACE_PS2_TIMEOUT 10000 /* in 50us unit */
+
+#define PS2_STATUS_CLOCK_SIGNAL BIT(0) /* external clock signal */
+#define PS2_STATUS_CLOCK_INHIBIT BIT(1) /* clken output signal */
+#define PS2_STATUS_TX_INPROGRESS BIT(2) /* transmission in progress */
+#define PS2_STATUS_TX_EMPTY BIT(3) /* empty transmit buffer */
+#define PS2_STATUS_RX_FULL BIT(4) /* full receive buffer */
+#define PS2_STATUS_RX_INPROGRESS BIT(5) /* reception in progress */
+#define PS2_STATUS_ERROR_PARITY BIT(6) /* parity error */
+#define PS2_STATUS_ERROR_FRAMING BIT(7) /* framing error */
+
+#define PS2_CONTROL_TX_CLOCK_DISABLE BIT(0) /* inhibit clock signal after TX */
+#define PS2_CONTROL_TX_ENABLE BIT(1) /* transmit enable */
+#define PS2_CONTROL_TX_INT_ENABLE BIT(2) /* enable transmit interrupt */
+#define PS2_CONTROL_RX_INT_ENABLE BIT(3) /* enable receive interrupt */
+#define PS2_CONTROL_RX_CLOCK_ENABLE BIT(4) /* pause reception if set to 0 */
+#define PS2_CONTROL_RESET BIT(5) /* reset */
+
+struct maceps2_data {
+ struct mace_ps2port *port;
+ int irq;
+};
+
+static struct maceps2_data port_data[2];
+static struct serio *maceps2_port[2];
+static struct platform_device *maceps2_device;
+
+static int maceps2_write(struct serio *dev, unsigned char val)
+{
+ struct mace_ps2port *port = ((struct maceps2_data *)dev->port_data)->port;
+ unsigned int timeout = MACE_PS2_TIMEOUT;
+
+ do {
+ if (port->status & PS2_STATUS_TX_EMPTY) {
+ port->tx = val;
+ return 0;
+ }
+ udelay(50);
+ } while (timeout--);
+
+ return -1;
+}
+
+static irqreturn_t maceps2_interrupt(int irq, void *dev_id)
+{
+ struct serio *dev = dev_id;
+ struct mace_ps2port *port = ((struct maceps2_data *)dev->port_data)->port;
+ unsigned long byte;
+
+ if (port->status & PS2_STATUS_RX_FULL) {
+ byte = port->rx;
+ serio_interrupt(dev, byte & 0xff, 0);
+ }
+
+ return IRQ_HANDLED;
+}
+
+static int maceps2_open(struct serio *dev)
+{
+ struct maceps2_data *data = (struct maceps2_data *)dev->port_data;
+
+ if (request_irq(data->irq, maceps2_interrupt, 0, "PS2 port", dev)) {
+ printk(KERN_ERR "Could not allocate PS/2 IRQ\n");
+ return -EBUSY;
+ }
+
+ /* Reset port */
+ data->port->control = PS2_CONTROL_TX_CLOCK_DISABLE | PS2_CONTROL_RESET;
+ udelay(100);
+
+ /* Enable interrupts */
+ data->port->control = PS2_CONTROL_RX_CLOCK_ENABLE |
+ PS2_CONTROL_TX_ENABLE |
+ PS2_CONTROL_RX_INT_ENABLE;
+
+ return 0;
+}
+
+static void maceps2_close(struct serio *dev)
+{
+ struct maceps2_data *data = (struct maceps2_data *)dev->port_data;
+
+ data->port->control = PS2_CONTROL_TX_CLOCK_DISABLE | PS2_CONTROL_RESET;
+ udelay(100);
+ free_irq(data->irq, dev);
+}
+
+
+static struct serio * __devinit maceps2_allocate_port(int idx)
+{
+ struct serio *serio;
+
+ serio = kzalloc(sizeof(struct serio), GFP_KERNEL);
+ if (serio) {
+ serio->id.type = SERIO_8042;
+ serio->write = maceps2_write;
+ serio->open = maceps2_open;
+ serio->close = maceps2_close;
+ snprintf(serio->name, sizeof(serio->name), "MACE PS/2 port%d", idx);
+ snprintf(serio->phys, sizeof(serio->phys), "mace/serio%d", idx);
+ serio->port_data = &port_data[idx];
+ serio->dev.parent = &maceps2_device->dev;
+ }
+
+ return serio;
+}
+
+static int __devinit maceps2_probe(struct platform_device *dev)
+{
+ maceps2_port[0] = maceps2_allocate_port(0);
+ maceps2_port[1] = maceps2_allocate_port(1);
+ if (!maceps2_port[0] || !maceps2_port[1]) {
+ kfree(maceps2_port[0]);
+ kfree(maceps2_port[1]);
+ return -ENOMEM;
+ }
+
+ serio_register_port(maceps2_port[0]);
+ serio_register_port(maceps2_port[1]);
+
+ return 0;
+}
+
+static int __devexit maceps2_remove(struct platform_device *dev)
+{
+ serio_unregister_port(maceps2_port[0]);
+ serio_unregister_port(maceps2_port[1]);
+
+ return 0;
+}
+
+static struct platform_driver maceps2_driver = {
+ .driver = {
+ .name = "maceps2",
+ .owner = THIS_MODULE,
+ },
+ .probe = maceps2_probe,
+ .remove = __devexit_p(maceps2_remove),
+};
+
+static int __init maceps2_init(void)
+{
+ int error;
+
+ error = platform_driver_register(&maceps2_driver);
+ if (error)
+ return error;
+
+ maceps2_device = platform_device_alloc("maceps2", -1);
+ if (!maceps2_device) {
+ error = -ENOMEM;
+ goto err_unregister_driver;
+ }
+
+ port_data[0].port = &mace->perif.ps2.keyb;
+ port_data[0].irq = MACEISA_KEYB_IRQ;
+ port_data[1].port = &mace->perif.ps2.mouse;
+ port_data[1].irq = MACEISA_MOUSE_IRQ;
+
+ error = platform_device_add(maceps2_device);
+ if (error)
+ goto err_free_device;
+
+ return 0;
+
+ err_free_device:
+ platform_device_put(maceps2_device);
+ err_unregister_driver:
+ platform_driver_unregister(&maceps2_driver);
+ return error;
+}
+
+static void __exit maceps2_exit(void)
+{
+ platform_device_unregister(maceps2_device);
+ platform_driver_unregister(&maceps2_driver);
+}
+
+module_init(maceps2_init);
+module_exit(maceps2_exit);
diff --git a/drivers/input/serio/parkbd.c b/drivers/input/serio/parkbd.c
new file mode 100644
index 0000000..26b4593
--- /dev/null
+++ b/drivers/input/serio/parkbd.c
@@ -0,0 +1,218 @@
+/*
+ * Parallel port to Keyboard port adapter driver for Linux
+ *
+ * Copyright (c) 1999-2004 Vojtech Pavlik
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ */
+
+/*
+ * To connect an AT or XT keyboard to the parallel port, a fairly simple adapter
+ * can be made:
+ *
+ * Parallel port Keyboard port
+ *
+ * +5V --------------------- +5V (4)
+ *
+ * ______
+ * +5V -------|______|--.
+ * |
+ * ACK (10) ------------|
+ * |--- KBD CLOCK (5)
+ * STROBE (1) ---|<|----'
+ *
+ * ______
+ * +5V -------|______|--.
+ * |
+ * BUSY (11) -----------|
+ * |--- KBD DATA (1)
+ * AUTOFD (14) --|<|----'
+ *
+ * GND (18-25) ------------- GND (3)
+ *
+ * The diodes can be fairly any type, and the resistors should be somewhere
+ * around 5 kOhm, but the adapter will likely work without the resistors,
+ * too.
+ *
+ * The +5V source can be taken either from USB, from mouse or keyboard ports,
+ * or from a joystick port. Unfortunately, the parallel port of a PC doesn't
+ * have a +5V pin, and feeding the keyboard from signal pins is out of question
+ * with 300 mA power reqirement of a typical AT keyboard.
+ */
+
+#include <linux/module.h>
+#include <linux/parport.h>
+#include <linux/slab.h>
+#include <linux/init.h>
+#include <linux/serio.h>
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
+MODULE_DESCRIPTION("Parallel port to Keyboard port adapter driver");
+MODULE_LICENSE("GPL");
+
+static unsigned int parkbd_pp_no;
+module_param_named(port, parkbd_pp_no, int, 0);
+MODULE_PARM_DESC(port, "Parallel port the adapter is connected to (default is 0)");
+
+static unsigned int parkbd_mode = SERIO_8042;
+module_param_named(mode, parkbd_mode, uint, 0);
+MODULE_PARM_DESC(mode, "Mode of operation: XT = 0/AT = 1 (default)");
+
+#define PARKBD_CLOCK 0x01 /* Strobe & Ack */
+#define PARKBD_DATA 0x02 /* AutoFd & Busy */
+
+static int parkbd_buffer;
+static int parkbd_counter;
+static unsigned long parkbd_last;
+static int parkbd_writing;
+static unsigned long parkbd_start;
+
+static struct pardevice *parkbd_dev;
+static struct serio *parkbd_port;
+
+static int parkbd_readlines(void)
+{
+ return (parport_read_status(parkbd_dev->port) >> 6) ^ 2;
+}
+
+static void parkbd_writelines(int data)
+{
+ parport_write_control(parkbd_dev->port, (~data & 3) | 0x10);
+}
+
+static int parkbd_write(struct serio *port, unsigned char c)
+{
+ unsigned char p;
+
+ if (!parkbd_mode) return -1;
+
+ p = c ^ (c >> 4);
+ p = p ^ (p >> 2);
+ p = p ^ (p >> 1);
+
+ parkbd_counter = 0;
+ parkbd_writing = 1;
+ parkbd_buffer = c | (((int) (~p & 1)) << 8) | 0x600;
+
+ parkbd_writelines(2);
+
+ return 0;
+}
+
+static void parkbd_interrupt(void *dev_id)
+{
+
+ if (parkbd_writing) {
+
+ if (parkbd_counter && ((parkbd_counter == 11) || time_after(jiffies, parkbd_last + HZ/100))) {
+ parkbd_counter = 0;
+ parkbd_buffer = 0;
+ parkbd_writing = 0;
+ parkbd_writelines(3);
+ return;
+ }
+
+ parkbd_writelines(((parkbd_buffer >> parkbd_counter++) & 1) | 2);
+
+ if (parkbd_counter == 11) {
+ parkbd_counter = 0;
+ parkbd_buffer = 0;
+ parkbd_writing = 0;
+ parkbd_writelines(3);
+ }
+
+ } else {
+
+ if ((parkbd_counter == parkbd_mode + 10) || time_after(jiffies, parkbd_last + HZ/100)) {
+ parkbd_counter = 0;
+ parkbd_buffer = 0;
+ }
+
+ parkbd_buffer |= (parkbd_readlines() >> 1) << parkbd_counter++;
+
+ if (parkbd_counter == parkbd_mode + 10)
+ serio_interrupt(parkbd_port, (parkbd_buffer >> (2 - parkbd_mode)) & 0xff, 0);
+ }
+
+ parkbd_last = jiffies;
+}
+
+static int parkbd_getport(void)
+{
+ struct parport *pp;
+
+ pp = parport_find_number(parkbd_pp_no);
+
+ if (pp == NULL) {
+ printk(KERN_ERR "parkbd: no such parport\n");
+ return -ENODEV;
+ }
+
+ parkbd_dev = parport_register_device(pp, "parkbd", NULL, NULL, parkbd_interrupt, PARPORT_DEV_EXCL, NULL);
+ parport_put_port(pp);
+
+ if (!parkbd_dev)
+ return -ENODEV;
+
+ if (parport_claim(parkbd_dev)) {
+ parport_unregister_device(parkbd_dev);
+ return -EBUSY;
+ }
+
+ parkbd_start = jiffies;
+
+ return 0;
+}
+
+static struct serio * __init parkbd_allocate_serio(void)
+{
+ struct serio *serio;
+
+ serio = kzalloc(sizeof(struct serio), GFP_KERNEL);
+ if (serio) {
+ serio->id.type = parkbd_mode;
+ serio->write = parkbd_write,
+ strlcpy(serio->name, "PARKBD AT/XT keyboard adapter", sizeof(serio->name));
+ snprintf(serio->phys, sizeof(serio->phys), "%s/serio0", parkbd_dev->port->name);
+ }
+
+ return serio;
+}
+
+static int __init parkbd_init(void)
+{
+ int err;
+
+ err = parkbd_getport();
+ if (err)
+ return err;
+
+ parkbd_port = parkbd_allocate_serio();
+ if (!parkbd_port) {
+ parport_release(parkbd_dev);
+ return -ENOMEM;
+ }
+
+ parkbd_writelines(3);
+
+ serio_register_port(parkbd_port);
+
+ printk(KERN_INFO "serio: PARKBD %s adapter on %s\n",
+ parkbd_mode ? "AT" : "XT", parkbd_dev->port->name);
+
+ return 0;
+}
+
+static void __exit parkbd_exit(void)
+{
+ parport_release(parkbd_dev);
+ serio_unregister_port(parkbd_port);
+ parport_unregister_device(parkbd_dev);
+}
+
+module_init(parkbd_init);
+module_exit(parkbd_exit);
diff --git a/drivers/input/serio/pcips2.c b/drivers/input/serio/pcips2.c
new file mode 100644
index 0000000..4349474
--- /dev/null
+++ b/drivers/input/serio/pcips2.c
@@ -0,0 +1,233 @@
+/*
+ * linux/drivers/input/serio/pcips2.c
+ *
+ * Copyright (C) 2003 Russell King, All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License.
+ *
+ * I'm not sure if this is a generic PS/2 PCI interface or specific to
+ * the Mobility Electronics docking station.
+ */
+#include <linux/module.h>
+#include <linux/interrupt.h>
+#include <linux/ioport.h>
+#include <linux/input.h>
+#include <linux/pci.h>
+#include <linux/slab.h>
+#include <linux/init.h>
+#include <linux/serio.h>
+#include <linux/delay.h>
+#include <asm/io.h>
+
+#define PS2_CTRL (0)
+#define PS2_STATUS (1)
+#define PS2_DATA (2)
+
+#define PS2_CTRL_CLK (1<<0)
+#define PS2_CTRL_DAT (1<<1)
+#define PS2_CTRL_TXIRQ (1<<2)
+#define PS2_CTRL_ENABLE (1<<3)
+#define PS2_CTRL_RXIRQ (1<<4)
+
+#define PS2_STAT_CLK (1<<0)
+#define PS2_STAT_DAT (1<<1)
+#define PS2_STAT_PARITY (1<<2)
+#define PS2_STAT_RXFULL (1<<5)
+#define PS2_STAT_TXBUSY (1<<6)
+#define PS2_STAT_TXEMPTY (1<<7)
+
+struct pcips2_data {
+ struct serio *io;
+ unsigned int base;
+ struct pci_dev *dev;
+};
+
+static int pcips2_write(struct serio *io, unsigned char val)
+{
+ struct pcips2_data *ps2if = io->port_data;
+ unsigned int stat;
+
+ do {
+ stat = inb(ps2if->base + PS2_STATUS);
+ cpu_relax();
+ } while (!(stat & PS2_STAT_TXEMPTY));
+
+ outb(val, ps2if->base + PS2_DATA);
+
+ return 0;
+}
+
+static irqreturn_t pcips2_interrupt(int irq, void *devid)
+{
+ struct pcips2_data *ps2if = devid;
+ unsigned char status, scancode;
+ int handled = 0;
+
+ do {
+ unsigned int flag;
+
+ status = inb(ps2if->base + PS2_STATUS);
+ if (!(status & PS2_STAT_RXFULL))
+ break;
+ handled = 1;
+ scancode = inb(ps2if->base + PS2_DATA);
+ if (status == 0xff && scancode == 0xff)
+ break;
+
+ flag = (status & PS2_STAT_PARITY) ? 0 : SERIO_PARITY;
+
+ if (hweight8(scancode) & 1)
+ flag ^= SERIO_PARITY;
+
+ serio_interrupt(ps2if->io, scancode, flag);
+ } while (1);
+ return IRQ_RETVAL(handled);
+}
+
+static void pcips2_flush_input(struct pcips2_data *ps2if)
+{
+ unsigned char status, scancode;
+
+ do {
+ status = inb(ps2if->base + PS2_STATUS);
+ if (!(status & PS2_STAT_RXFULL))
+ break;
+ scancode = inb(ps2if->base + PS2_DATA);
+ if (status == 0xff && scancode == 0xff)
+ break;
+ } while (1);
+}
+
+static int pcips2_open(struct serio *io)
+{
+ struct pcips2_data *ps2if = io->port_data;
+ int ret, val = 0;
+
+ outb(PS2_CTRL_ENABLE, ps2if->base);
+ pcips2_flush_input(ps2if);
+
+ ret = request_irq(ps2if->dev->irq, pcips2_interrupt, IRQF_SHARED,
+ "pcips2", ps2if);
+ if (ret == 0)
+ val = PS2_CTRL_ENABLE | PS2_CTRL_RXIRQ;
+
+ outb(val, ps2if->base);
+
+ return ret;
+}
+
+static void pcips2_close(struct serio *io)
+{
+ struct pcips2_data *ps2if = io->port_data;
+
+ outb(0, ps2if->base);
+
+ free_irq(ps2if->dev->irq, ps2if);
+}
+
+static int __devinit pcips2_probe(struct pci_dev *dev, const struct pci_device_id *id)
+{
+ struct pcips2_data *ps2if;
+ struct serio *serio;
+ int ret;
+
+ ret = pci_enable_device(dev);
+ if (ret)
+ goto out;
+
+ ret = pci_request_regions(dev, "pcips2");
+ if (ret)
+ goto disable;
+
+ ps2if = kzalloc(sizeof(struct pcips2_data), GFP_KERNEL);
+ serio = kzalloc(sizeof(struct serio), GFP_KERNEL);
+ if (!ps2if || !serio) {
+ ret = -ENOMEM;
+ goto release;
+ }
+
+
+ serio->id.type = SERIO_8042;
+ serio->write = pcips2_write;
+ serio->open = pcips2_open;
+ serio->close = pcips2_close;
+ strlcpy(serio->name, pci_name(dev), sizeof(serio->name));
+ strlcpy(serio->phys, dev_name(&dev->dev), sizeof(serio->phys));
+ serio->port_data = ps2if;
+ serio->dev.parent = &dev->dev;
+ ps2if->io = serio;
+ ps2if->dev = dev;
+ ps2if->base = pci_resource_start(dev, 0);
+
+ pci_set_drvdata(dev, ps2if);
+
+ serio_register_port(ps2if->io);
+ return 0;
+
+ release:
+ kfree(ps2if);
+ kfree(serio);
+ pci_release_regions(dev);
+ disable:
+ pci_disable_device(dev);
+ out:
+ return ret;
+}
+
+static void __devexit pcips2_remove(struct pci_dev *dev)
+{
+ struct pcips2_data *ps2if = pci_get_drvdata(dev);
+
+ serio_unregister_port(ps2if->io);
+ pci_set_drvdata(dev, NULL);
+ kfree(ps2if);
+ pci_release_regions(dev);
+ pci_disable_device(dev);
+}
+
+static const struct pci_device_id pcips2_ids[] = {
+ {
+ .vendor = 0x14f2, /* MOBILITY */
+ .device = 0x0123, /* Keyboard */
+ .subvendor = PCI_ANY_ID,
+ .subdevice = PCI_ANY_ID,
+ .class = PCI_CLASS_INPUT_KEYBOARD << 8,
+ .class_mask = 0xffff00,
+ },
+ {
+ .vendor = 0x14f2, /* MOBILITY */
+ .device = 0x0124, /* Mouse */
+ .subvendor = PCI_ANY_ID,
+ .subdevice = PCI_ANY_ID,
+ .class = PCI_CLASS_INPUT_MOUSE << 8,
+ .class_mask = 0xffff00,
+ },
+ { 0, }
+};
+
+static struct pci_driver pcips2_driver = {
+ .name = "pcips2",
+ .id_table = pcips2_ids,
+ .probe = pcips2_probe,
+ .remove = __devexit_p(pcips2_remove),
+};
+
+static int __init pcips2_init(void)
+{
+ return pci_register_driver(&pcips2_driver);
+}
+
+static void __exit pcips2_exit(void)
+{
+ pci_unregister_driver(&pcips2_driver);
+}
+
+module_init(pcips2_init);
+module_exit(pcips2_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Russell King <rmk@arm.linux.org.uk>");
+MODULE_DESCRIPTION("PCI PS/2 keyboard/mouse driver");
+MODULE_DEVICE_TABLE(pci, pcips2_ids);
diff --git a/drivers/input/serio/ps2mult.c b/drivers/input/serio/ps2mult.c
new file mode 100644
index 0000000..15aa81c
--- /dev/null
+++ b/drivers/input/serio/ps2mult.c
@@ -0,0 +1,318 @@
+/*
+ * TQC PS/2 Multiplexer driver
+ *
+ * Copyright (C) 2010 Dmitry Eremin-Solenikov
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ */
+
+
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/serio.h>
+
+MODULE_AUTHOR("Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>");
+MODULE_DESCRIPTION("TQC PS/2 Multiplexer driver");
+MODULE_LICENSE("GPL");
+
+#define PS2MULT_KB_SELECTOR 0xA0
+#define PS2MULT_MS_SELECTOR 0xA1
+#define PS2MULT_ESCAPE 0x7D
+#define PS2MULT_BSYNC 0x7E
+#define PS2MULT_SESSION_START 0x55
+#define PS2MULT_SESSION_END 0x56
+
+struct ps2mult_port {
+ struct serio *serio;
+ unsigned char sel;
+ bool registered;
+};
+
+#define PS2MULT_NUM_PORTS 2
+#define PS2MULT_KBD_PORT 0
+#define PS2MULT_MOUSE_PORT 1
+
+struct ps2mult {
+ struct serio *mx_serio;
+ struct ps2mult_port ports[PS2MULT_NUM_PORTS];
+
+ spinlock_t lock;
+ struct ps2mult_port *in_port;
+ struct ps2mult_port *out_port;
+ bool escape;
+};
+
+/* First MUST come PS2MULT_NUM_PORTS selectors */
+static const unsigned char ps2mult_controls[] = {
+ PS2MULT_KB_SELECTOR, PS2MULT_MS_SELECTOR,
+ PS2MULT_ESCAPE, PS2MULT_BSYNC,
+ PS2MULT_SESSION_START, PS2MULT_SESSION_END,
+};
+
+static const struct serio_device_id ps2mult_serio_ids[] = {
+ {
+ .type = SERIO_RS232,
+ .proto = SERIO_PS2MULT,
+ .id = SERIO_ANY,
+ .extra = SERIO_ANY,
+ },
+ { 0 }
+};
+
+MODULE_DEVICE_TABLE(serio, ps2mult_serio_ids);
+
+static void ps2mult_select_port(struct ps2mult *psm, struct ps2mult_port *port)
+{
+ struct serio *mx_serio = psm->mx_serio;
+
+ serio_write(mx_serio, port->sel);
+ psm->out_port = port;
+ dev_dbg(&mx_serio->dev, "switched to sel %02x\n", port->sel);
+}
+
+static int ps2mult_serio_write(struct serio *serio, unsigned char data)
+{
+ struct serio *mx_port = serio->parent;
+ struct ps2mult *psm = serio_get_drvdata(mx_port);
+ struct ps2mult_port *port = serio->port_data;
+ bool need_escape;
+ unsigned long flags;
+
+ spin_lock_irqsave(&psm->lock, flags);
+
+ if (psm->out_port != port)
+ ps2mult_select_port(psm, port);
+
+ need_escape = memchr(ps2mult_controls, data, sizeof(ps2mult_controls));
+
+ dev_dbg(&serio->dev,
+ "write: %s%02x\n", need_escape ? "ESC " : "", data);
+
+ if (need_escape)
+ serio_write(mx_port, PS2MULT_ESCAPE);
+
+ serio_write(mx_port, data);
+
+ spin_unlock_irqrestore(&psm->lock, flags);
+
+ return 0;
+}
+
+static int ps2mult_serio_start(struct serio *serio)
+{
+ struct ps2mult *psm = serio_get_drvdata(serio->parent);
+ struct ps2mult_port *port = serio->port_data;
+ unsigned long flags;
+
+ spin_lock_irqsave(&psm->lock, flags);
+ port->registered = true;
+ spin_unlock_irqrestore(&psm->lock, flags);
+
+ return 0;
+}
+
+static void ps2mult_serio_stop(struct serio *serio)
+{
+ struct ps2mult *psm = serio_get_drvdata(serio->parent);
+ struct ps2mult_port *port = serio->port_data;
+ unsigned long flags;
+
+ spin_lock_irqsave(&psm->lock, flags);
+ port->registered = false;
+ spin_unlock_irqrestore(&psm->lock, flags);
+}
+
+static int ps2mult_create_port(struct ps2mult *psm, int i)
+{
+ struct serio *mx_serio = psm->mx_serio;
+ struct serio *serio;
+
+ serio = kzalloc(sizeof(struct serio), GFP_KERNEL);
+ if (!serio)
+ return -ENOMEM;
+
+ strlcpy(serio->name, "TQC PS/2 Multiplexer", sizeof(serio->name));
+ snprintf(serio->phys, sizeof(serio->phys),
+ "%s/port%d", mx_serio->phys, i);
+ serio->id.type = SERIO_8042;
+ serio->write = ps2mult_serio_write;
+ serio->start = ps2mult_serio_start;
+ serio->stop = ps2mult_serio_stop;
+ serio->parent = psm->mx_serio;
+ serio->port_data = &psm->ports[i];
+
+ psm->ports[i].serio = serio;
+
+ return 0;
+}
+
+static void ps2mult_reset(struct ps2mult *psm)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&psm->lock, flags);
+
+ serio_write(psm->mx_serio, PS2MULT_SESSION_END);
+ serio_write(psm->mx_serio, PS2MULT_SESSION_START);
+
+ ps2mult_select_port(psm, &psm->ports[PS2MULT_KBD_PORT]);
+
+ spin_unlock_irqrestore(&psm->lock, flags);
+}
+
+static int ps2mult_connect(struct serio *serio, struct serio_driver *drv)
+{
+ struct ps2mult *psm;
+ int i;
+ int error;
+
+ if (!serio->write)
+ return -EINVAL;
+
+ psm = kzalloc(sizeof(*psm), GFP_KERNEL);
+ if (!psm)
+ return -ENOMEM;
+
+ spin_lock_init(&psm->lock);
+ psm->mx_serio = serio;
+
+ for (i = 0; i < PS2MULT_NUM_PORTS; i++) {
+ psm->ports[i].sel = ps2mult_controls[i];
+ error = ps2mult_create_port(psm, i);
+ if (error)
+ goto err_out;
+ }
+
+ psm->in_port = psm->out_port = &psm->ports[PS2MULT_KBD_PORT];
+
+ serio_set_drvdata(serio, psm);
+ error = serio_open(serio, drv);
+ if (error)
+ goto err_out;
+
+ ps2mult_reset(psm);
+
+ for (i = 0; i < PS2MULT_NUM_PORTS; i++) {
+ struct serio *s = psm->ports[i].serio;
+
+ dev_info(&serio->dev, "%s port at %s\n", s->name, serio->phys);
+ serio_register_port(s);
+ }
+
+ return 0;
+
+err_out:
+ while (--i >= 0)
+ kfree(psm->ports[i].serio);
+ kfree(psm);
+ return error;
+}
+
+static void ps2mult_disconnect(struct serio *serio)
+{
+ struct ps2mult *psm = serio_get_drvdata(serio);
+
+ /* Note that serio core already take care of children ports */
+ serio_write(serio, PS2MULT_SESSION_END);
+ serio_close(serio);
+ kfree(psm);
+
+ serio_set_drvdata(serio, NULL);
+}
+
+static int ps2mult_reconnect(struct serio *serio)
+{
+ struct ps2mult *psm = serio_get_drvdata(serio);
+
+ ps2mult_reset(psm);
+
+ return 0;
+}
+
+static irqreturn_t ps2mult_interrupt(struct serio *serio,
+ unsigned char data, unsigned int dfl)
+{
+ struct ps2mult *psm = serio_get_drvdata(serio);
+ struct ps2mult_port *in_port;
+ unsigned long flags;
+
+ dev_dbg(&serio->dev, "Received %02x flags %02x\n", data, dfl);
+
+ spin_lock_irqsave(&psm->lock, flags);
+
+ if (psm->escape) {
+ psm->escape = false;
+ in_port = psm->in_port;
+ if (in_port->registered)
+ serio_interrupt(in_port->serio, data, dfl);
+ goto out;
+ }
+
+ switch (data) {
+ case PS2MULT_ESCAPE:
+ dev_dbg(&serio->dev, "ESCAPE\n");
+ psm->escape = true;
+ break;
+
+ case PS2MULT_BSYNC:
+ dev_dbg(&serio->dev, "BSYNC\n");
+ psm->in_port = psm->out_port;
+ break;
+
+ case PS2MULT_SESSION_START:
+ dev_dbg(&serio->dev, "SS\n");
+ break;
+
+ case PS2MULT_SESSION_END:
+ dev_dbg(&serio->dev, "SE\n");
+ break;
+
+ case PS2MULT_KB_SELECTOR:
+ dev_dbg(&serio->dev, "KB\n");
+ psm->in_port = &psm->ports[PS2MULT_KBD_PORT];
+ break;
+
+ case PS2MULT_MS_SELECTOR:
+ dev_dbg(&serio->dev, "MS\n");
+ psm->in_port = &psm->ports[PS2MULT_MOUSE_PORT];
+ break;
+
+ default:
+ in_port = psm->in_port;
+ if (in_port->registered)
+ serio_interrupt(in_port->serio, data, dfl);
+ break;
+ }
+
+ out:
+ spin_unlock_irqrestore(&psm->lock, flags);
+ return IRQ_HANDLED;
+}
+
+static struct serio_driver ps2mult_drv = {
+ .driver = {
+ .name = "ps2mult",
+ },
+ .description = "TQC PS/2 Multiplexer driver",
+ .id_table = ps2mult_serio_ids,
+ .interrupt = ps2mult_interrupt,
+ .connect = ps2mult_connect,
+ .disconnect = ps2mult_disconnect,
+ .reconnect = ps2mult_reconnect,
+};
+
+static int __init ps2mult_init(void)
+{
+ return serio_register_driver(&ps2mult_drv);
+}
+
+static void __exit ps2mult_exit(void)
+{
+ serio_unregister_driver(&ps2mult_drv);
+}
+
+module_init(ps2mult_init);
+module_exit(ps2mult_exit);
diff --git a/drivers/input/serio/q40kbd.c b/drivers/input/serio/q40kbd.c
new file mode 100644
index 0000000..5eb84b3
--- /dev/null
+++ b/drivers/input/serio/q40kbd.c
@@ -0,0 +1,188 @@
+/*
+ * Copyright (c) 2000-2001 Vojtech Pavlik
+ *
+ * Based on the work of:
+ * Richard Zidlicky <Richard.Zidlicky@stud.informatik.uni-erlangen.de>
+ */
+
+/*
+ * Q40 PS/2 keyboard controller driver for Linux/m68k
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * Should you need to contact me, the author, you can do so either by
+ * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
+ * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/serio.h>
+#include <linux/interrupt.h>
+#include <linux/err.h>
+#include <linux/bitops.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+
+#include <asm/io.h>
+#include <asm/uaccess.h>
+#include <asm/q40_master.h>
+#include <asm/irq.h>
+#include <asm/q40ints.h>
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
+MODULE_DESCRIPTION("Q40 PS/2 keyboard controller driver");
+MODULE_LICENSE("GPL");
+
+static DEFINE_SPINLOCK(q40kbd_lock);
+static struct serio *q40kbd_port;
+static struct platform_device *q40kbd_device;
+
+static irqreturn_t q40kbd_interrupt(int irq, void *dev_id)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&q40kbd_lock, flags);
+
+ if (Q40_IRQ_KEYB_MASK & master_inb(INTERRUPT_REG))
+ serio_interrupt(q40kbd_port, master_inb(KEYCODE_REG), 0);
+
+ master_outb(-1, KEYBOARD_UNLOCK_REG);
+
+ spin_unlock_irqrestore(&q40kbd_lock, flags);
+
+ return IRQ_HANDLED;
+}
+
+/*
+ * q40kbd_flush() flushes all data that may be in the keyboard buffers
+ */
+
+static void q40kbd_flush(void)
+{
+ int maxread = 100;
+ unsigned long flags;
+
+ spin_lock_irqsave(&q40kbd_lock, flags);
+
+ while (maxread-- && (Q40_IRQ_KEYB_MASK & master_inb(INTERRUPT_REG)))
+ master_inb(KEYCODE_REG);
+
+ spin_unlock_irqrestore(&q40kbd_lock, flags);
+}
+
+/*
+ * q40kbd_open() is called when a port is open by the higher layer.
+ * It allocates the interrupt and enables in in the chip.
+ */
+
+static int q40kbd_open(struct serio *port)
+{
+ q40kbd_flush();
+
+ if (request_irq(Q40_IRQ_KEYBOARD, q40kbd_interrupt, 0, "q40kbd", NULL)) {
+ printk(KERN_ERR "q40kbd.c: Can't get irq %d.\n", Q40_IRQ_KEYBOARD);
+ return -EBUSY;
+ }
+
+ /* off we go */
+ master_outb(-1, KEYBOARD_UNLOCK_REG);
+ master_outb(1, KEY_IRQ_ENABLE_REG);
+
+ return 0;
+}
+
+static void q40kbd_close(struct serio *port)
+{
+ master_outb(0, KEY_IRQ_ENABLE_REG);
+ master_outb(-1, KEYBOARD_UNLOCK_REG);
+ free_irq(Q40_IRQ_KEYBOARD, NULL);
+
+ q40kbd_flush();
+}
+
+static int __devinit q40kbd_probe(struct platform_device *dev)
+{
+ q40kbd_port = kzalloc(sizeof(struct serio), GFP_KERNEL);
+ if (!q40kbd_port)
+ return -ENOMEM;
+
+ q40kbd_port->id.type = SERIO_8042;
+ q40kbd_port->open = q40kbd_open;
+ q40kbd_port->close = q40kbd_close;
+ q40kbd_port->dev.parent = &dev->dev;
+ strlcpy(q40kbd_port->name, "Q40 Kbd Port", sizeof(q40kbd_port->name));
+ strlcpy(q40kbd_port->phys, "Q40", sizeof(q40kbd_port->phys));
+
+ serio_register_port(q40kbd_port);
+ printk(KERN_INFO "serio: Q40 kbd registered\n");
+
+ return 0;
+}
+
+static int __devexit q40kbd_remove(struct platform_device *dev)
+{
+ serio_unregister_port(q40kbd_port);
+
+ return 0;
+}
+
+static struct platform_driver q40kbd_driver = {
+ .driver = {
+ .name = "q40kbd",
+ .owner = THIS_MODULE,
+ },
+ .probe = q40kbd_probe,
+ .remove = __devexit_p(q40kbd_remove),
+};
+
+static int __init q40kbd_init(void)
+{
+ int error;
+
+ if (!MACH_IS_Q40)
+ return -ENODEV;
+
+ error = platform_driver_register(&q40kbd_driver);
+ if (error)
+ return error;
+
+ q40kbd_device = platform_device_alloc("q40kbd", -1);
+ if (!q40kbd_device)
+ goto err_unregister_driver;
+
+ error = platform_device_add(q40kbd_device);
+ if (error)
+ goto err_free_device;
+
+ return 0;
+
+ err_free_device:
+ platform_device_put(q40kbd_device);
+ err_unregister_driver:
+ platform_driver_unregister(&q40kbd_driver);
+ return error;
+}
+
+static void __exit q40kbd_exit(void)
+{
+ platform_device_unregister(q40kbd_device);
+ platform_driver_unregister(&q40kbd_driver);
+}
+
+module_init(q40kbd_init);
+module_exit(q40kbd_exit);
diff --git a/drivers/input/serio/rpckbd.c b/drivers/input/serio/rpckbd.c
new file mode 100644
index 0000000..7ec3c97
--- /dev/null
+++ b/drivers/input/serio/rpckbd.c
@@ -0,0 +1,158 @@
+/*
+ * Copyright (c) 2000-2001 Vojtech Pavlik
+ * Copyright (c) 2002 Russell King
+ */
+
+/*
+ * Acorn RiscPC PS/2 keyboard controller driver for Linux/ARM
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * Should you need to contact me, the author, you can do so either by
+ * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
+ * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
+ */
+
+#include <linux/module.h>
+#include <linux/interrupt.h>
+#include <linux/init.h>
+#include <linux/serio.h>
+#include <linux/err.h>
+#include <linux/platform_device.h>
+#include <linux/io.h>
+#include <linux/slab.h>
+
+#include <asm/irq.h>
+#include <mach/hardware.h>
+#include <asm/hardware/iomd.h>
+#include <asm/system.h>
+
+MODULE_AUTHOR("Vojtech Pavlik, Russell King");
+MODULE_DESCRIPTION("Acorn RiscPC PS/2 keyboard controller driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:kart");
+
+static int rpckbd_write(struct serio *port, unsigned char val)
+{
+ while (!(iomd_readb(IOMD_KCTRL) & (1 << 7)))
+ cpu_relax();
+
+ iomd_writeb(val, IOMD_KARTTX);
+
+ return 0;
+}
+
+static irqreturn_t rpckbd_rx(int irq, void *dev_id)
+{
+ struct serio *port = dev_id;
+ unsigned int byte;
+ int handled = IRQ_NONE;
+
+ while (iomd_readb(IOMD_KCTRL) & (1 << 5)) {
+ byte = iomd_readb(IOMD_KARTRX);
+
+ serio_interrupt(port, byte, 0);
+ handled = IRQ_HANDLED;
+ }
+ return handled;
+}
+
+static irqreturn_t rpckbd_tx(int irq, void *dev_id)
+{
+ return IRQ_HANDLED;
+}
+
+static int rpckbd_open(struct serio *port)
+{
+ /* Reset the keyboard state machine. */
+ iomd_writeb(0, IOMD_KCTRL);
+ iomd_writeb(8, IOMD_KCTRL);
+ iomd_readb(IOMD_KARTRX);
+
+ if (request_irq(IRQ_KEYBOARDRX, rpckbd_rx, 0, "rpckbd", port) != 0) {
+ printk(KERN_ERR "rpckbd.c: Could not allocate keyboard receive IRQ\n");
+ return -EBUSY;
+ }
+
+ if (request_irq(IRQ_KEYBOARDTX, rpckbd_tx, 0, "rpckbd", port) != 0) {
+ printk(KERN_ERR "rpckbd.c: Could not allocate keyboard transmit IRQ\n");
+ free_irq(IRQ_KEYBOARDRX, port);
+ return -EBUSY;
+ }
+
+ return 0;
+}
+
+static void rpckbd_close(struct serio *port)
+{
+ free_irq(IRQ_KEYBOARDRX, port);
+ free_irq(IRQ_KEYBOARDTX, port);
+}
+
+/*
+ * Allocate and initialize serio structure for subsequent registration
+ * with serio core.
+ */
+static int __devinit rpckbd_probe(struct platform_device *dev)
+{
+ struct serio *serio;
+
+ serio = kzalloc(sizeof(struct serio), GFP_KERNEL);
+ if (!serio)
+ return -ENOMEM;
+
+ serio->id.type = SERIO_8042;
+ serio->write = rpckbd_write;
+ serio->open = rpckbd_open;
+ serio->close = rpckbd_close;
+ serio->dev.parent = &dev->dev;
+ strlcpy(serio->name, "RiscPC PS/2 kbd port", sizeof(serio->name));
+ strlcpy(serio->phys, "rpckbd/serio0", sizeof(serio->phys));
+
+ platform_set_drvdata(dev, serio);
+ serio_register_port(serio);
+ return 0;
+}
+
+static int __devexit rpckbd_remove(struct platform_device *dev)
+{
+ struct serio *serio = platform_get_drvdata(dev);
+ serio_unregister_port(serio);
+ return 0;
+}
+
+static struct platform_driver rpckbd_driver = {
+ .probe = rpckbd_probe,
+ .remove = __devexit_p(rpckbd_remove),
+ .driver = {
+ .name = "kart",
+ .owner = THIS_MODULE,
+ },
+};
+
+static int __init rpckbd_init(void)
+{
+ return platform_driver_register(&rpckbd_driver);
+}
+
+static void __exit rpckbd_exit(void)
+{
+ platform_driver_unregister(&rpckbd_driver);
+}
+
+module_init(rpckbd_init);
+module_exit(rpckbd_exit);
diff --git a/drivers/input/serio/sa1111ps2.c b/drivers/input/serio/sa1111ps2.c
new file mode 100644
index 0000000..44fc8b4
--- /dev/null
+++ b/drivers/input/serio/sa1111ps2.c
@@ -0,0 +1,354 @@
+/*
+ * linux/drivers/input/serio/sa1111ps2.c
+ *
+ * Copyright (C) 2002 Russell King
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License.
+ */
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/input.h>
+#include <linux/serio.h>
+#include <linux/errno.h>
+#include <linux/interrupt.h>
+#include <linux/ioport.h>
+#include <linux/delay.h>
+#include <linux/device.h>
+#include <linux/slab.h>
+#include <linux/spinlock.h>
+
+#include <asm/io.h>
+#include <asm/system.h>
+
+#include <asm/hardware/sa1111.h>
+
+struct ps2if {
+ struct serio *io;
+ struct sa1111_dev *dev;
+ void __iomem *base;
+ unsigned int open;
+ spinlock_t lock;
+ unsigned int head;
+ unsigned int tail;
+ unsigned char buf[4];
+};
+
+/*
+ * Read all bytes waiting in the PS2 port. There should be
+ * at the most one, but we loop for safety. If there was a
+ * framing error, we have to manually clear the status.
+ */
+static irqreturn_t ps2_rxint(int irq, void *dev_id)
+{
+ struct ps2if *ps2if = dev_id;
+ unsigned int scancode, flag, status;
+
+ status = sa1111_readl(ps2if->base + SA1111_PS2STAT);
+ while (status & PS2STAT_RXF) {
+ if (status & PS2STAT_STP)
+ sa1111_writel(PS2STAT_STP, ps2if->base + SA1111_PS2STAT);
+
+ flag = (status & PS2STAT_STP ? SERIO_FRAME : 0) |
+ (status & PS2STAT_RXP ? 0 : SERIO_PARITY);
+
+ scancode = sa1111_readl(ps2if->base + SA1111_PS2DATA) & 0xff;
+
+ if (hweight8(scancode) & 1)
+ flag ^= SERIO_PARITY;
+
+ serio_interrupt(ps2if->io, scancode, flag);
+
+ status = sa1111_readl(ps2if->base + SA1111_PS2STAT);
+ }
+
+ return IRQ_HANDLED;
+}
+
+/*
+ * Completion of ps2 write
+ */
+static irqreturn_t ps2_txint(int irq, void *dev_id)
+{
+ struct ps2if *ps2if = dev_id;
+ unsigned int status;
+
+ spin_lock(&ps2if->lock);
+ status = sa1111_readl(ps2if->base + SA1111_PS2STAT);
+ if (ps2if->head == ps2if->tail) {
+ disable_irq_nosync(irq);
+ /* done */
+ } else if (status & PS2STAT_TXE) {
+ sa1111_writel(ps2if->buf[ps2if->tail], ps2if->base + SA1111_PS2DATA);
+ ps2if->tail = (ps2if->tail + 1) & (sizeof(ps2if->buf) - 1);
+ }
+ spin_unlock(&ps2if->lock);
+
+ return IRQ_HANDLED;
+}
+
+/*
+ * Write a byte to the PS2 port. We have to wait for the
+ * port to indicate that the transmitter is empty.
+ */
+static int ps2_write(struct serio *io, unsigned char val)
+{
+ struct ps2if *ps2if = io->port_data;
+ unsigned long flags;
+ unsigned int head;
+
+ spin_lock_irqsave(&ps2if->lock, flags);
+
+ /*
+ * If the TX register is empty, we can go straight out.
+ */
+ if (sa1111_readl(ps2if->base + SA1111_PS2STAT) & PS2STAT_TXE) {
+ sa1111_writel(val, ps2if->base + SA1111_PS2DATA);
+ } else {
+ if (ps2if->head == ps2if->tail)
+ enable_irq(ps2if->dev->irq[1]);
+ head = (ps2if->head + 1) & (sizeof(ps2if->buf) - 1);
+ if (head != ps2if->tail) {
+ ps2if->buf[ps2if->head] = val;
+ ps2if->head = head;
+ }
+ }
+
+ spin_unlock_irqrestore(&ps2if->lock, flags);
+ return 0;
+}
+
+static int ps2_open(struct serio *io)
+{
+ struct ps2if *ps2if = io->port_data;
+ int ret;
+
+ sa1111_enable_device(ps2if->dev);
+
+ ret = request_irq(ps2if->dev->irq[0], ps2_rxint, 0,
+ SA1111_DRIVER_NAME(ps2if->dev), ps2if);
+ if (ret) {
+ printk(KERN_ERR "sa1111ps2: could not allocate IRQ%d: %d\n",
+ ps2if->dev->irq[0], ret);
+ return ret;
+ }
+
+ ret = request_irq(ps2if->dev->irq[1], ps2_txint, 0,
+ SA1111_DRIVER_NAME(ps2if->dev), ps2if);
+ if (ret) {
+ printk(KERN_ERR "sa1111ps2: could not allocate IRQ%d: %d\n",
+ ps2if->dev->irq[1], ret);
+ free_irq(ps2if->dev->irq[0], ps2if);
+ return ret;
+ }
+
+ ps2if->open = 1;
+
+ enable_irq_wake(ps2if->dev->irq[0]);
+
+ sa1111_writel(PS2CR_ENA, ps2if->base + SA1111_PS2CR);
+ return 0;
+}
+
+static void ps2_close(struct serio *io)
+{
+ struct ps2if *ps2if = io->port_data;
+
+ sa1111_writel(0, ps2if->base + SA1111_PS2CR);
+
+ disable_irq_wake(ps2if->dev->irq[0]);
+
+ ps2if->open = 0;
+
+ free_irq(ps2if->dev->irq[1], ps2if);
+ free_irq(ps2if->dev->irq[0], ps2if);
+
+ sa1111_disable_device(ps2if->dev);
+}
+
+/*
+ * Clear the input buffer.
+ */
+static void __devinit ps2_clear_input(struct ps2if *ps2if)
+{
+ int maxread = 100;
+
+ while (maxread--) {
+ if ((sa1111_readl(ps2if->base + SA1111_PS2DATA) & 0xff) == 0xff)
+ break;
+ }
+}
+
+static unsigned int __devinit ps2_test_one(struct ps2if *ps2if,
+ unsigned int mask)
+{
+ unsigned int val;
+
+ sa1111_writel(PS2CR_ENA | mask, ps2if->base + SA1111_PS2CR);
+
+ udelay(2);
+
+ val = sa1111_readl(ps2if->base + SA1111_PS2STAT);
+ return val & (PS2STAT_KBC | PS2STAT_KBD);
+}
+
+/*
+ * Test the keyboard interface. We basically check to make sure that
+ * we can drive each line to the keyboard independently of each other.
+ */
+static int __devinit ps2_test(struct ps2if *ps2if)
+{
+ unsigned int stat;
+ int ret = 0;
+
+ stat = ps2_test_one(ps2if, PS2CR_FKC);
+ if (stat != PS2STAT_KBD) {
+ printk("PS/2 interface test failed[1]: %02x\n", stat);
+ ret = -ENODEV;
+ }
+
+ stat = ps2_test_one(ps2if, 0);
+ if (stat != (PS2STAT_KBC | PS2STAT_KBD)) {
+ printk("PS/2 interface test failed[2]: %02x\n", stat);
+ ret = -ENODEV;
+ }
+
+ stat = ps2_test_one(ps2if, PS2CR_FKD);
+ if (stat != PS2STAT_KBC) {
+ printk("PS/2 interface test failed[3]: %02x\n", stat);
+ ret = -ENODEV;
+ }
+
+ sa1111_writel(0, ps2if->base + SA1111_PS2CR);
+
+ return ret;
+}
+
+/*
+ * Add one device to this driver.
+ */
+static int __devinit ps2_probe(struct sa1111_dev *dev)
+{
+ struct ps2if *ps2if;
+ struct serio *serio;
+ int ret;
+
+ ps2if = kzalloc(sizeof(struct ps2if), GFP_KERNEL);
+ serio = kzalloc(sizeof(struct serio), GFP_KERNEL);
+ if (!ps2if || !serio) {
+ ret = -ENOMEM;
+ goto free;
+ }
+
+
+ serio->id.type = SERIO_8042;
+ serio->write = ps2_write;
+ serio->open = ps2_open;
+ serio->close = ps2_close;
+ strlcpy(serio->name, dev_name(&dev->dev), sizeof(serio->name));
+ strlcpy(serio->phys, dev_name(&dev->dev), sizeof(serio->phys));
+ serio->port_data = ps2if;
+ serio->dev.parent = &dev->dev;
+ ps2if->io = serio;
+ ps2if->dev = dev;
+ sa1111_set_drvdata(dev, ps2if);
+
+ spin_lock_init(&ps2if->lock);
+
+ /*
+ * Request the physical region for this PS2 port.
+ */
+ if (!request_mem_region(dev->res.start,
+ dev->res.end - dev->res.start + 1,
+ SA1111_DRIVER_NAME(dev))) {
+ ret = -EBUSY;
+ goto free;
+ }
+
+ /*
+ * Our parent device has already mapped the region.
+ */
+ ps2if->base = dev->mapbase;
+
+ sa1111_enable_device(ps2if->dev);
+
+ /* Incoming clock is 8MHz */
+ sa1111_writel(0, ps2if->base + SA1111_PS2CLKDIV);
+ sa1111_writel(127, ps2if->base + SA1111_PS2PRECNT);
+
+ /*
+ * Flush any pending input.
+ */
+ ps2_clear_input(ps2if);
+
+ /*
+ * Test the keyboard interface.
+ */
+ ret = ps2_test(ps2if);
+ if (ret)
+ goto out;
+
+ /*
+ * Flush any pending input.
+ */
+ ps2_clear_input(ps2if);
+
+ sa1111_disable_device(ps2if->dev);
+ serio_register_port(ps2if->io);
+ return 0;
+
+ out:
+ sa1111_disable_device(ps2if->dev);
+ release_mem_region(dev->res.start, resource_size(&dev->res));
+ free:
+ sa1111_set_drvdata(dev, NULL);
+ kfree(ps2if);
+ kfree(serio);
+ return ret;
+}
+
+/*
+ * Remove one device from this driver.
+ */
+static int __devexit ps2_remove(struct sa1111_dev *dev)
+{
+ struct ps2if *ps2if = sa1111_get_drvdata(dev);
+
+ serio_unregister_port(ps2if->io);
+ release_mem_region(dev->res.start, resource_size(&dev->res));
+ sa1111_set_drvdata(dev, NULL);
+
+ kfree(ps2if);
+
+ return 0;
+}
+
+/*
+ * Our device driver structure
+ */
+static struct sa1111_driver ps2_driver = {
+ .drv = {
+ .name = "sa1111-ps2",
+ },
+ .devid = SA1111_DEVID_PS2,
+ .probe = ps2_probe,
+ .remove = __devexit_p(ps2_remove),
+};
+
+static int __init ps2_init(void)
+{
+ return sa1111_driver_register(&ps2_driver);
+}
+
+static void __exit ps2_exit(void)
+{
+ sa1111_driver_unregister(&ps2_driver);
+}
+
+module_init(ps2_init);
+module_exit(ps2_exit);
+
+MODULE_AUTHOR("Russell King <rmk@arm.linux.org.uk>");
+MODULE_DESCRIPTION("SA1111 PS2 controller driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/input/serio/serio.c b/drivers/input/serio/serio.c
new file mode 100644
index 0000000..ba70058
--- /dev/null
+++ b/drivers/input/serio/serio.c
@@ -0,0 +1,1047 @@
+/*
+ * The Serio abstraction module
+ *
+ * Copyright (c) 1999-2004 Vojtech Pavlik
+ * Copyright (c) 2004 Dmitry Torokhov
+ * Copyright (c) 2003 Daniele Bellucci
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * Should you need to contact me, the author, you can do so either by
+ * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
+ * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/stddef.h>
+#include <linux/module.h>
+#include <linux/serio.h>
+#include <linux/errno.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
+#include <linux/workqueue.h>
+#include <linux/mutex.h>
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
+MODULE_DESCRIPTION("Serio abstraction core");
+MODULE_LICENSE("GPL");
+
+/*
+ * serio_mutex protects entire serio subsystem and is taken every time
+ * serio port or driver registered or unregistered.
+ */
+static DEFINE_MUTEX(serio_mutex);
+
+static LIST_HEAD(serio_list);
+
+static struct bus_type serio_bus;
+
+static void serio_add_port(struct serio *serio);
+static int serio_reconnect_port(struct serio *serio);
+static void serio_disconnect_port(struct serio *serio);
+static void serio_reconnect_subtree(struct serio *serio);
+static void serio_attach_driver(struct serio_driver *drv);
+
+static int serio_connect_driver(struct serio *serio, struct serio_driver *drv)
+{
+ int retval;
+
+ mutex_lock(&serio->drv_mutex);
+ retval = drv->connect(serio, drv);
+ mutex_unlock(&serio->drv_mutex);
+
+ return retval;
+}
+
+static int serio_reconnect_driver(struct serio *serio)
+{
+ int retval = -1;
+
+ mutex_lock(&serio->drv_mutex);
+ if (serio->drv && serio->drv->reconnect)
+ retval = serio->drv->reconnect(serio);
+ mutex_unlock(&serio->drv_mutex);
+
+ return retval;
+}
+
+static void serio_disconnect_driver(struct serio *serio)
+{
+ mutex_lock(&serio->drv_mutex);
+ if (serio->drv)
+ serio->drv->disconnect(serio);
+ mutex_unlock(&serio->drv_mutex);
+}
+
+static int serio_match_port(const struct serio_device_id *ids, struct serio *serio)
+{
+ while (ids->type || ids->proto) {
+ if ((ids->type == SERIO_ANY || ids->type == serio->id.type) &&
+ (ids->proto == SERIO_ANY || ids->proto == serio->id.proto) &&
+ (ids->extra == SERIO_ANY || ids->extra == serio->id.extra) &&
+ (ids->id == SERIO_ANY || ids->id == serio->id.id))
+ return 1;
+ ids++;
+ }
+ return 0;
+}
+
+/*
+ * Basic serio -> driver core mappings
+ */
+
+static int serio_bind_driver(struct serio *serio, struct serio_driver *drv)
+{
+ int error;
+
+ if (serio_match_port(drv->id_table, serio)) {
+
+ serio->dev.driver = &drv->driver;
+ if (serio_connect_driver(serio, drv)) {
+ serio->dev.driver = NULL;
+ return -ENODEV;
+ }
+
+ error = device_bind_driver(&serio->dev);
+ if (error) {
+ dev_warn(&serio->dev,
+ "device_bind_driver() failed for %s (%s) and %s, error: %d\n",
+ serio->phys, serio->name,
+ drv->description, error);
+ serio_disconnect_driver(serio);
+ serio->dev.driver = NULL;
+ return error;
+ }
+ }
+ return 0;
+}
+
+static void serio_find_driver(struct serio *serio)
+{
+ int error;
+
+ error = device_attach(&serio->dev);
+ if (error < 0)
+ dev_warn(&serio->dev,
+ "device_attach() failed for %s (%s), error: %d\n",
+ serio->phys, serio->name, error);
+}
+
+
+/*
+ * Serio event processing.
+ */
+
+enum serio_event_type {
+ SERIO_RESCAN_PORT,
+ SERIO_RECONNECT_PORT,
+ SERIO_RECONNECT_SUBTREE,
+ SERIO_REGISTER_PORT,
+ SERIO_ATTACH_DRIVER,
+};
+
+struct serio_event {
+ enum serio_event_type type;
+ void *object;
+ struct module *owner;
+ struct list_head node;
+};
+
+static DEFINE_SPINLOCK(serio_event_lock); /* protects serio_event_list */
+static LIST_HEAD(serio_event_list);
+
+static struct serio_event *serio_get_event(void)
+{
+ struct serio_event *event = NULL;
+ unsigned long flags;
+
+ spin_lock_irqsave(&serio_event_lock, flags);
+
+ if (!list_empty(&serio_event_list)) {
+ event = list_first_entry(&serio_event_list,
+ struct serio_event, node);
+ list_del_init(&event->node);
+ }
+
+ spin_unlock_irqrestore(&serio_event_lock, flags);
+ return event;
+}
+
+static void serio_free_event(struct serio_event *event)
+{
+ module_put(event->owner);
+ kfree(event);
+}
+
+static void serio_remove_duplicate_events(void *object,
+ enum serio_event_type type)
+{
+ struct serio_event *e, *next;
+ unsigned long flags;
+
+ spin_lock_irqsave(&serio_event_lock, flags);
+
+ list_for_each_entry_safe(e, next, &serio_event_list, node) {
+ if (object == e->object) {
+ /*
+ * If this event is of different type we should not
+ * look further - we only suppress duplicate events
+ * that were sent back-to-back.
+ */
+ if (type != e->type)
+ break;
+
+ list_del_init(&e->node);
+ serio_free_event(e);
+ }
+ }
+
+ spin_unlock_irqrestore(&serio_event_lock, flags);
+}
+
+static void serio_handle_event(struct work_struct *work)
+{
+ struct serio_event *event;
+
+ mutex_lock(&serio_mutex);
+
+ while ((event = serio_get_event())) {
+
+ switch (event->type) {
+
+ case SERIO_REGISTER_PORT:
+ serio_add_port(event->object);
+ break;
+
+ case SERIO_RECONNECT_PORT:
+ serio_reconnect_port(event->object);
+ break;
+
+ case SERIO_RESCAN_PORT:
+ serio_disconnect_port(event->object);
+ serio_find_driver(event->object);
+ break;
+
+ case SERIO_RECONNECT_SUBTREE:
+ serio_reconnect_subtree(event->object);
+ break;
+
+ case SERIO_ATTACH_DRIVER:
+ serio_attach_driver(event->object);
+ break;
+ }
+
+ serio_remove_duplicate_events(event->object, event->type);
+ serio_free_event(event);
+ }
+
+ mutex_unlock(&serio_mutex);
+}
+
+static DECLARE_WORK(serio_event_work, serio_handle_event);
+
+static int serio_queue_event(void *object, struct module *owner,
+ enum serio_event_type event_type)
+{
+ unsigned long flags;
+ struct serio_event *event;
+ int retval = 0;
+
+ spin_lock_irqsave(&serio_event_lock, flags);
+
+ /*
+ * Scan event list for the other events for the same serio port,
+ * starting with the most recent one. If event is the same we
+ * do not need add new one. If event is of different type we
+ * need to add this event and should not look further because
+ * we need to preseve sequence of distinct events.
+ */
+ list_for_each_entry_reverse(event, &serio_event_list, node) {
+ if (event->object == object) {
+ if (event->type == event_type)
+ goto out;
+ break;
+ }
+ }
+
+ event = kmalloc(sizeof(struct serio_event), GFP_ATOMIC);
+ if (!event) {
+ pr_err("Not enough memory to queue event %d\n", event_type);
+ retval = -ENOMEM;
+ goto out;
+ }
+
+ if (!try_module_get(owner)) {
+ pr_warning("Can't get module reference, dropping event %d\n",
+ event_type);
+ kfree(event);
+ retval = -EINVAL;
+ goto out;
+ }
+
+ event->type = event_type;
+ event->object = object;
+ event->owner = owner;
+
+ list_add_tail(&event->node, &serio_event_list);
+ queue_work(system_long_wq, &serio_event_work);
+
+out:
+ spin_unlock_irqrestore(&serio_event_lock, flags);
+ return retval;
+}
+
+/*
+ * Remove all events that have been submitted for a given
+ * object, be it serio port or driver.
+ */
+static void serio_remove_pending_events(void *object)
+{
+ struct serio_event *event, *next;
+ unsigned long flags;
+
+ spin_lock_irqsave(&serio_event_lock, flags);
+
+ list_for_each_entry_safe(event, next, &serio_event_list, node) {
+ if (event->object == object) {
+ list_del_init(&event->node);
+ serio_free_event(event);
+ }
+ }
+
+ spin_unlock_irqrestore(&serio_event_lock, flags);
+}
+
+/*
+ * Locate child serio port (if any) that has not been fully registered yet.
+ *
+ * Children are registered by driver's connect() handler so there can't be a
+ * grandchild pending registration together with a child.
+ */
+static struct serio *serio_get_pending_child(struct serio *parent)
+{
+ struct serio_event *event;
+ struct serio *serio, *child = NULL;
+ unsigned long flags;
+
+ spin_lock_irqsave(&serio_event_lock, flags);
+
+ list_for_each_entry(event, &serio_event_list, node) {
+ if (event->type == SERIO_REGISTER_PORT) {
+ serio = event->object;
+ if (serio->parent == parent) {
+ child = serio;
+ break;
+ }
+ }
+ }
+
+ spin_unlock_irqrestore(&serio_event_lock, flags);
+ return child;
+}
+
+/*
+ * Serio port operations
+ */
+
+static ssize_t serio_show_description(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct serio *serio = to_serio_port(dev);
+ return sprintf(buf, "%s\n", serio->name);
+}
+
+static ssize_t serio_show_modalias(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct serio *serio = to_serio_port(dev);
+
+ return sprintf(buf, "serio:ty%02Xpr%02Xid%02Xex%02X\n",
+ serio->id.type, serio->id.proto, serio->id.id, serio->id.extra);
+}
+
+static ssize_t serio_show_id_type(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct serio *serio = to_serio_port(dev);
+ return sprintf(buf, "%02x\n", serio->id.type);
+}
+
+static ssize_t serio_show_id_proto(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct serio *serio = to_serio_port(dev);
+ return sprintf(buf, "%02x\n", serio->id.proto);
+}
+
+static ssize_t serio_show_id_id(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct serio *serio = to_serio_port(dev);
+ return sprintf(buf, "%02x\n", serio->id.id);
+}
+
+static ssize_t serio_show_id_extra(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct serio *serio = to_serio_port(dev);
+ return sprintf(buf, "%02x\n", serio->id.extra);
+}
+
+static DEVICE_ATTR(type, S_IRUGO, serio_show_id_type, NULL);
+static DEVICE_ATTR(proto, S_IRUGO, serio_show_id_proto, NULL);
+static DEVICE_ATTR(id, S_IRUGO, serio_show_id_id, NULL);
+static DEVICE_ATTR(extra, S_IRUGO, serio_show_id_extra, NULL);
+
+static struct attribute *serio_device_id_attrs[] = {
+ &dev_attr_type.attr,
+ &dev_attr_proto.attr,
+ &dev_attr_id.attr,
+ &dev_attr_extra.attr,
+ NULL
+};
+
+static struct attribute_group serio_id_attr_group = {
+ .name = "id",
+ .attrs = serio_device_id_attrs,
+};
+
+static const struct attribute_group *serio_device_attr_groups[] = {
+ &serio_id_attr_group,
+ NULL
+};
+
+static ssize_t serio_rebind_driver(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
+{
+ struct serio *serio = to_serio_port(dev);
+ struct device_driver *drv;
+ int error;
+
+ error = mutex_lock_interruptible(&serio_mutex);
+ if (error)
+ return error;
+
+ if (!strncmp(buf, "none", count)) {
+ serio_disconnect_port(serio);
+ } else if (!strncmp(buf, "reconnect", count)) {
+ serio_reconnect_subtree(serio);
+ } else if (!strncmp(buf, "rescan", count)) {
+ serio_disconnect_port(serio);
+ serio_find_driver(serio);
+ serio_remove_duplicate_events(serio, SERIO_RESCAN_PORT);
+ } else if ((drv = driver_find(buf, &serio_bus)) != NULL) {
+ serio_disconnect_port(serio);
+ error = serio_bind_driver(serio, to_serio_driver(drv));
+ put_driver(drv);
+ serio_remove_duplicate_events(serio, SERIO_RESCAN_PORT);
+ } else {
+ error = -EINVAL;
+ }
+
+ mutex_unlock(&serio_mutex);
+
+ return error ? error : count;
+}
+
+static ssize_t serio_show_bind_mode(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct serio *serio = to_serio_port(dev);
+ return sprintf(buf, "%s\n", serio->manual_bind ? "manual" : "auto");
+}
+
+static ssize_t serio_set_bind_mode(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
+{
+ struct serio *serio = to_serio_port(dev);
+ int retval;
+
+ retval = count;
+ if (!strncmp(buf, "manual", count)) {
+ serio->manual_bind = true;
+ } else if (!strncmp(buf, "auto", count)) {
+ serio->manual_bind = false;
+ } else {
+ retval = -EINVAL;
+ }
+
+ return retval;
+}
+
+static struct device_attribute serio_device_attrs[] = {
+ __ATTR(description, S_IRUGO, serio_show_description, NULL),
+ __ATTR(modalias, S_IRUGO, serio_show_modalias, NULL),
+ __ATTR(drvctl, S_IWUSR, NULL, serio_rebind_driver),
+ __ATTR(bind_mode, S_IWUSR | S_IRUGO, serio_show_bind_mode, serio_set_bind_mode),
+ __ATTR_NULL
+};
+
+
+static void serio_release_port(struct device *dev)
+{
+ struct serio *serio = to_serio_port(dev);
+
+ kfree(serio);
+ module_put(THIS_MODULE);
+}
+
+/*
+ * Prepare serio port for registration.
+ */
+static void serio_init_port(struct serio *serio)
+{
+ static atomic_t serio_no = ATOMIC_INIT(0);
+
+ __module_get(THIS_MODULE);
+
+ INIT_LIST_HEAD(&serio->node);
+ INIT_LIST_HEAD(&serio->child_node);
+ INIT_LIST_HEAD(&serio->children);
+ spin_lock_init(&serio->lock);
+ mutex_init(&serio->drv_mutex);
+ device_initialize(&serio->dev);
+ dev_set_name(&serio->dev, "serio%ld",
+ (long)atomic_inc_return(&serio_no) - 1);
+ serio->dev.bus = &serio_bus;
+ serio->dev.release = serio_release_port;
+ serio->dev.groups = serio_device_attr_groups;
+ if (serio->parent) {
+ serio->dev.parent = &serio->parent->dev;
+ serio->depth = serio->parent->depth + 1;
+ } else
+ serio->depth = 0;
+ lockdep_set_subclass(&serio->lock, serio->depth);
+}
+
+/*
+ * Complete serio port registration.
+ * Driver core will attempt to find appropriate driver for the port.
+ */
+static void serio_add_port(struct serio *serio)
+{
+ struct serio *parent = serio->parent;
+ int error;
+
+ if (parent) {
+ serio_pause_rx(parent);
+ list_add_tail(&serio->child_node, &parent->children);
+ serio_continue_rx(parent);
+ }
+
+ list_add_tail(&serio->node, &serio_list);
+
+ if (serio->start)
+ serio->start(serio);
+
+ error = device_add(&serio->dev);
+ if (error)
+ dev_err(&serio->dev,
+ "device_add() failed for %s (%s), error: %d\n",
+ serio->phys, serio->name, error);
+}
+
+/*
+ * serio_destroy_port() completes unregistration process and removes
+ * port from the system
+ */
+static void serio_destroy_port(struct serio *serio)
+{
+ struct serio *child;
+
+ while ((child = serio_get_pending_child(serio)) != NULL) {
+ serio_remove_pending_events(child);
+ put_device(&child->dev);
+ }
+
+ if (serio->stop)
+ serio->stop(serio);
+
+ if (serio->parent) {
+ serio_pause_rx(serio->parent);
+ list_del_init(&serio->child_node);
+ serio_continue_rx(serio->parent);
+ serio->parent = NULL;
+ }
+
+ if (device_is_registered(&serio->dev))
+ device_del(&serio->dev);
+
+ list_del_init(&serio->node);
+ serio_remove_pending_events(serio);
+ put_device(&serio->dev);
+}
+
+/*
+ * Reconnect serio port (re-initialize attached device).
+ * If reconnect fails (old device is no longer attached or
+ * there was no device to begin with) we do full rescan in
+ * hope of finding a driver for the port.
+ */
+static int serio_reconnect_port(struct serio *serio)
+{
+ int error = serio_reconnect_driver(serio);
+
+ if (error) {
+ serio_disconnect_port(serio);
+ serio_find_driver(serio);
+ }
+
+ return error;
+}
+
+/*
+ * Reconnect serio port and all its children (re-initialize attached
+ * devices).
+ */
+static void serio_reconnect_subtree(struct serio *root)
+{
+ struct serio *s = root;
+ int error;
+
+ do {
+ error = serio_reconnect_port(s);
+ if (!error) {
+ /*
+ * Reconnect was successful, move on to do the
+ * first child.
+ */
+ if (!list_empty(&s->children)) {
+ s = list_first_entry(&s->children,
+ struct serio, child_node);
+ continue;
+ }
+ }
+
+ /*
+ * Either it was a leaf node or reconnect failed and it
+ * became a leaf node. Continue reconnecting starting with
+ * the next sibling of the parent node.
+ */
+ while (s != root) {
+ struct serio *parent = s->parent;
+
+ if (!list_is_last(&s->child_node, &parent->children)) {
+ s = list_entry(s->child_node.next,
+ struct serio, child_node);
+ break;
+ }
+
+ s = parent;
+ }
+ } while (s != root);
+}
+
+/*
+ * serio_disconnect_port() unbinds a port from its driver. As a side effect
+ * all children ports are unbound and destroyed.
+ */
+static void serio_disconnect_port(struct serio *serio)
+{
+ struct serio *s = serio;
+
+ /*
+ * Children ports should be disconnected and destroyed
+ * first; we travel the tree in depth-first order.
+ */
+ while (!list_empty(&serio->children)) {
+
+ /* Locate a leaf */
+ while (!list_empty(&s->children))
+ s = list_first_entry(&s->children,
+ struct serio, child_node);
+
+ /*
+ * Prune this leaf node unless it is the one we
+ * started with.
+ */
+ if (s != serio) {
+ struct serio *parent = s->parent;
+
+ device_release_driver(&s->dev);
+ serio_destroy_port(s);
+
+ s = parent;
+ }
+ }
+
+ /*
+ * OK, no children left, now disconnect this port.
+ */
+ device_release_driver(&serio->dev);
+}
+
+void serio_rescan(struct serio *serio)
+{
+ serio_queue_event(serio, NULL, SERIO_RESCAN_PORT);
+}
+EXPORT_SYMBOL(serio_rescan);
+
+void serio_reconnect(struct serio *serio)
+{
+ serio_queue_event(serio, NULL, SERIO_RECONNECT_SUBTREE);
+}
+EXPORT_SYMBOL(serio_reconnect);
+
+/*
+ * Submits register request to kseriod for subsequent execution.
+ * Note that port registration is always asynchronous.
+ */
+void __serio_register_port(struct serio *serio, struct module *owner)
+{
+ serio_init_port(serio);
+ serio_queue_event(serio, owner, SERIO_REGISTER_PORT);
+}
+EXPORT_SYMBOL(__serio_register_port);
+
+/*
+ * Synchronously unregisters serio port.
+ */
+void serio_unregister_port(struct serio *serio)
+{
+ mutex_lock(&serio_mutex);
+ serio_disconnect_port(serio);
+ serio_destroy_port(serio);
+ mutex_unlock(&serio_mutex);
+}
+EXPORT_SYMBOL(serio_unregister_port);
+
+/*
+ * Safely unregisters children ports if they are present.
+ */
+void serio_unregister_child_port(struct serio *serio)
+{
+ struct serio *s, *next;
+
+ mutex_lock(&serio_mutex);
+ list_for_each_entry_safe(s, next, &serio->children, child_node) {
+ serio_disconnect_port(s);
+ serio_destroy_port(s);
+ }
+ mutex_unlock(&serio_mutex);
+}
+EXPORT_SYMBOL(serio_unregister_child_port);
+
+
+/*
+ * Serio driver operations
+ */
+
+static ssize_t serio_driver_show_description(struct device_driver *drv, char *buf)
+{
+ struct serio_driver *driver = to_serio_driver(drv);
+ return sprintf(buf, "%s\n", driver->description ? driver->description : "(none)");
+}
+
+static ssize_t serio_driver_show_bind_mode(struct device_driver *drv, char *buf)
+{
+ struct serio_driver *serio_drv = to_serio_driver(drv);
+ return sprintf(buf, "%s\n", serio_drv->manual_bind ? "manual" : "auto");
+}
+
+static ssize_t serio_driver_set_bind_mode(struct device_driver *drv, const char *buf, size_t count)
+{
+ struct serio_driver *serio_drv = to_serio_driver(drv);
+ int retval;
+
+ retval = count;
+ if (!strncmp(buf, "manual", count)) {
+ serio_drv->manual_bind = true;
+ } else if (!strncmp(buf, "auto", count)) {
+ serio_drv->manual_bind = false;
+ } else {
+ retval = -EINVAL;
+ }
+
+ return retval;
+}
+
+
+static struct driver_attribute serio_driver_attrs[] = {
+ __ATTR(description, S_IRUGO, serio_driver_show_description, NULL),
+ __ATTR(bind_mode, S_IWUSR | S_IRUGO,
+ serio_driver_show_bind_mode, serio_driver_set_bind_mode),
+ __ATTR_NULL
+};
+
+static int serio_driver_probe(struct device *dev)
+{
+ struct serio *serio = to_serio_port(dev);
+ struct serio_driver *drv = to_serio_driver(dev->driver);
+
+ return serio_connect_driver(serio, drv);
+}
+
+static int serio_driver_remove(struct device *dev)
+{
+ struct serio *serio = to_serio_port(dev);
+
+ serio_disconnect_driver(serio);
+ return 0;
+}
+
+static void serio_cleanup(struct serio *serio)
+{
+ mutex_lock(&serio->drv_mutex);
+ if (serio->drv && serio->drv->cleanup)
+ serio->drv->cleanup(serio);
+ mutex_unlock(&serio->drv_mutex);
+}
+
+static void serio_shutdown(struct device *dev)
+{
+ struct serio *serio = to_serio_port(dev);
+
+ serio_cleanup(serio);
+}
+
+static void serio_attach_driver(struct serio_driver *drv)
+{
+ int error;
+
+ error = driver_attach(&drv->driver);
+ if (error)
+ pr_warning("driver_attach() failed for %s with error %d\n",
+ drv->driver.name, error);
+}
+
+int __serio_register_driver(struct serio_driver *drv, struct module *owner, const char *mod_name)
+{
+ bool manual_bind = drv->manual_bind;
+ int error;
+
+ drv->driver.bus = &serio_bus;
+ drv->driver.owner = owner;
+ drv->driver.mod_name = mod_name;
+
+ /*
+ * Temporarily disable automatic binding because probing
+ * takes long time and we are better off doing it in kseriod
+ */
+ drv->manual_bind = true;
+
+ error = driver_register(&drv->driver);
+ if (error) {
+ pr_err("driver_register() failed for %s, error: %d\n",
+ drv->driver.name, error);
+ return error;
+ }
+
+ /*
+ * Restore original bind mode and let kseriod bind the
+ * driver to free ports
+ */
+ if (!manual_bind) {
+ drv->manual_bind = false;
+ error = serio_queue_event(drv, NULL, SERIO_ATTACH_DRIVER);
+ if (error) {
+ driver_unregister(&drv->driver);
+ return error;
+ }
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL(__serio_register_driver);
+
+void serio_unregister_driver(struct serio_driver *drv)
+{
+ struct serio *serio;
+
+ mutex_lock(&serio_mutex);
+
+ drv->manual_bind = true; /* so serio_find_driver ignores it */
+ serio_remove_pending_events(drv);
+
+start_over:
+ list_for_each_entry(serio, &serio_list, node) {
+ if (serio->drv == drv) {
+ serio_disconnect_port(serio);
+ serio_find_driver(serio);
+ /* we could've deleted some ports, restart */
+ goto start_over;
+ }
+ }
+
+ driver_unregister(&drv->driver);
+ mutex_unlock(&serio_mutex);
+}
+EXPORT_SYMBOL(serio_unregister_driver);
+
+static void serio_set_drv(struct serio *serio, struct serio_driver *drv)
+{
+ serio_pause_rx(serio);
+ serio->drv = drv;
+ serio_continue_rx(serio);
+}
+
+static int serio_bus_match(struct device *dev, struct device_driver *drv)
+{
+ struct serio *serio = to_serio_port(dev);
+ struct serio_driver *serio_drv = to_serio_driver(drv);
+
+ if (serio->manual_bind || serio_drv->manual_bind)
+ return 0;
+
+ return serio_match_port(serio_drv->id_table, serio);
+}
+
+#ifdef CONFIG_HOTPLUG
+
+#define SERIO_ADD_UEVENT_VAR(fmt, val...) \
+ do { \
+ int err = add_uevent_var(env, fmt, val); \
+ if (err) \
+ return err; \
+ } while (0)
+
+static int serio_uevent(struct device *dev, struct kobj_uevent_env *env)
+{
+ struct serio *serio;
+
+ if (!dev)
+ return -ENODEV;
+
+ serio = to_serio_port(dev);
+
+ SERIO_ADD_UEVENT_VAR("SERIO_TYPE=%02x", serio->id.type);
+ SERIO_ADD_UEVENT_VAR("SERIO_PROTO=%02x", serio->id.proto);
+ SERIO_ADD_UEVENT_VAR("SERIO_ID=%02x", serio->id.id);
+ SERIO_ADD_UEVENT_VAR("SERIO_EXTRA=%02x", serio->id.extra);
+ SERIO_ADD_UEVENT_VAR("MODALIAS=serio:ty%02Xpr%02Xid%02Xex%02X",
+ serio->id.type, serio->id.proto, serio->id.id, serio->id.extra);
+
+ return 0;
+}
+#undef SERIO_ADD_UEVENT_VAR
+
+#else
+
+static int serio_uevent(struct device *dev, struct kobj_uevent_env *env)
+{
+ return -ENODEV;
+}
+
+#endif /* CONFIG_HOTPLUG */
+
+#ifdef CONFIG_PM
+static int serio_suspend(struct device *dev)
+{
+ struct serio *serio = to_serio_port(dev);
+
+ serio_cleanup(serio);
+
+ return 0;
+}
+
+static int serio_resume(struct device *dev)
+{
+ struct serio *serio = to_serio_port(dev);
+
+ /*
+ * Driver reconnect can take a while, so better let kseriod
+ * deal with it.
+ */
+ serio_queue_event(serio, NULL, SERIO_RECONNECT_PORT);
+
+ return 0;
+}
+
+static const struct dev_pm_ops serio_pm_ops = {
+ .suspend = serio_suspend,
+ .resume = serio_resume,
+ .poweroff = serio_suspend,
+ .restore = serio_resume,
+};
+#endif /* CONFIG_PM */
+
+/* called from serio_driver->connect/disconnect methods under serio_mutex */
+int serio_open(struct serio *serio, struct serio_driver *drv)
+{
+ serio_set_drv(serio, drv);
+
+ if (serio->open && serio->open(serio)) {
+ serio_set_drv(serio, NULL);
+ return -1;
+ }
+ return 0;
+}
+EXPORT_SYMBOL(serio_open);
+
+/* called from serio_driver->connect/disconnect methods under serio_mutex */
+void serio_close(struct serio *serio)
+{
+ if (serio->close)
+ serio->close(serio);
+
+ serio_set_drv(serio, NULL);
+}
+EXPORT_SYMBOL(serio_close);
+
+irqreturn_t serio_interrupt(struct serio *serio,
+ unsigned char data, unsigned int dfl)
+{
+ unsigned long flags;
+ irqreturn_t ret = IRQ_NONE;
+
+ spin_lock_irqsave(&serio->lock, flags);
+
+ if (likely(serio->drv)) {
+ ret = serio->drv->interrupt(serio, data, dfl);
+ } else if (!dfl && device_is_registered(&serio->dev)) {
+ serio_rescan(serio);
+ ret = IRQ_HANDLED;
+ }
+
+ spin_unlock_irqrestore(&serio->lock, flags);
+
+ return ret;
+}
+EXPORT_SYMBOL(serio_interrupt);
+
+static struct bus_type serio_bus = {
+ .name = "serio",
+ .dev_attrs = serio_device_attrs,
+ .drv_attrs = serio_driver_attrs,
+ .match = serio_bus_match,
+ .uevent = serio_uevent,
+ .probe = serio_driver_probe,
+ .remove = serio_driver_remove,
+ .shutdown = serio_shutdown,
+#ifdef CONFIG_PM
+ .pm = &serio_pm_ops,
+#endif
+};
+
+static int __init serio_init(void)
+{
+ int error;
+
+ error = bus_register(&serio_bus);
+ if (error) {
+ pr_err("Failed to register serio bus, error: %d\n", error);
+ return error;
+ }
+
+ return 0;
+}
+
+static void __exit serio_exit(void)
+{
+ bus_unregister(&serio_bus);
+
+ /*
+ * There should not be any outstanding events but work may
+ * still be scheduled so simply cancel it.
+ */
+ cancel_work_sync(&serio_event_work);
+}
+
+subsys_initcall(serio_init);
+module_exit(serio_exit);
diff --git a/drivers/input/serio/serio_raw.c b/drivers/input/serio/serio_raw.c
new file mode 100644
index 0000000..4d4cd14
--- /dev/null
+++ b/drivers/input/serio/serio_raw.c
@@ -0,0 +1,443 @@
+/*
+ * Raw serio device providing access to a raw byte stream from underlying
+ * serio port. Closely emulates behavior of pre-2.6 /dev/psaux device
+ *
+ * Copyright (c) 2004 Dmitry Torokhov
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ */
+
+#include <linux/kref.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
+#include <linux/poll.h>
+#include <linux/module.h>
+#include <linux/serio.h>
+#include <linux/init.h>
+#include <linux/major.h>
+#include <linux/device.h>
+#include <linux/miscdevice.h>
+#include <linux/wait.h>
+#include <linux/mutex.h>
+
+#define DRIVER_DESC "Raw serio driver"
+
+MODULE_AUTHOR("Dmitry Torokhov <dtor@mail.ru>");
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+#define SERIO_RAW_QUEUE_LEN 64
+struct serio_raw {
+ unsigned char queue[SERIO_RAW_QUEUE_LEN];
+ unsigned int tail, head;
+
+ char name[16];
+ struct kref kref;
+ struct serio *serio;
+ struct miscdevice dev;
+ wait_queue_head_t wait;
+ struct list_head client_list;
+ struct list_head node;
+ bool dead;
+};
+
+struct serio_raw_client {
+ struct fasync_struct *fasync;
+ struct serio_raw *serio_raw;
+ struct list_head node;
+};
+
+static DEFINE_MUTEX(serio_raw_mutex);
+static LIST_HEAD(serio_raw_list);
+
+/*********************************************************************
+ * Interface with userspace (file operations) *
+ *********************************************************************/
+
+static int serio_raw_fasync(int fd, struct file *file, int on)
+{
+ struct serio_raw_client *client = file->private_data;
+
+ return fasync_helper(fd, file, on, &client->fasync);
+}
+
+static struct serio_raw *serio_raw_locate(int minor)
+{
+ struct serio_raw *serio_raw;
+
+ list_for_each_entry(serio_raw, &serio_raw_list, node) {
+ if (serio_raw->dev.minor == minor)
+ return serio_raw;
+ }
+
+ return NULL;
+}
+
+static int serio_raw_open(struct inode *inode, struct file *file)
+{
+ struct serio_raw *serio_raw;
+ struct serio_raw_client *client;
+ int retval;
+
+ retval = mutex_lock_interruptible(&serio_raw_mutex);
+ if (retval)
+ return retval;
+
+ serio_raw = serio_raw_locate(iminor(inode));
+ if (!serio_raw) {
+ retval = -ENODEV;
+ goto out;
+ }
+
+ if (serio_raw->dead) {
+ retval = -ENODEV;
+ goto out;
+ }
+
+ client = kzalloc(sizeof(struct serio_raw_client), GFP_KERNEL);
+ if (!client) {
+ retval = -ENOMEM;
+ goto out;
+ }
+
+ client->serio_raw = serio_raw;
+ file->private_data = client;
+
+ kref_get(&serio_raw->kref);
+
+ serio_pause_rx(serio_raw->serio);
+ list_add_tail(&client->node, &serio_raw->client_list);
+ serio_continue_rx(serio_raw->serio);
+
+out:
+ mutex_unlock(&serio_raw_mutex);
+ return retval;
+}
+
+static void serio_raw_free(struct kref *kref)
+{
+ struct serio_raw *serio_raw =
+ container_of(kref, struct serio_raw, kref);
+
+ put_device(&serio_raw->serio->dev);
+ kfree(serio_raw);
+}
+
+static int serio_raw_release(struct inode *inode, struct file *file)
+{
+ struct serio_raw_client *client = file->private_data;
+ struct serio_raw *serio_raw = client->serio_raw;
+
+ serio_pause_rx(serio_raw->serio);
+ list_del(&client->node);
+ serio_continue_rx(serio_raw->serio);
+
+ kfree(client);
+
+ kref_put(&serio_raw->kref, serio_raw_free);
+
+ return 0;
+}
+
+static bool serio_raw_fetch_byte(struct serio_raw *serio_raw, char *c)
+{
+ bool empty;
+
+ serio_pause_rx(serio_raw->serio);
+
+ empty = serio_raw->head == serio_raw->tail;
+ if (!empty) {
+ *c = serio_raw->queue[serio_raw->tail];
+ serio_raw->tail = (serio_raw->tail + 1) % SERIO_RAW_QUEUE_LEN;
+ }
+
+ serio_continue_rx(serio_raw->serio);
+
+ return !empty;
+}
+
+static ssize_t serio_raw_read(struct file *file, char __user *buffer,
+ size_t count, loff_t *ppos)
+{
+ struct serio_raw_client *client = file->private_data;
+ struct serio_raw *serio_raw = client->serio_raw;
+ char uninitialized_var(c);
+ ssize_t retval = 0;
+
+ if (serio_raw->dead)
+ return -ENODEV;
+
+ if (serio_raw->head == serio_raw->tail && (file->f_flags & O_NONBLOCK))
+ return -EAGAIN;
+
+ retval = wait_event_interruptible(serio_raw->wait,
+ serio_raw->head != serio_raw->tail || serio_raw->dead);
+ if (retval)
+ return retval;
+
+ if (serio_raw->dead)
+ return -ENODEV;
+
+ while (retval < count && serio_raw_fetch_byte(serio_raw, &c)) {
+ if (put_user(c, buffer++))
+ return -EFAULT;
+ retval++;
+ }
+
+ return retval;
+}
+
+static ssize_t serio_raw_write(struct file *file, const char __user *buffer,
+ size_t count, loff_t *ppos)
+{
+ struct serio_raw_client *client = file->private_data;
+ struct serio_raw *serio_raw = client->serio_raw;
+ ssize_t written = 0;
+ int retval;
+ unsigned char c;
+
+ retval = mutex_lock_interruptible(&serio_raw_mutex);
+ if (retval)
+ return retval;
+
+ if (serio_raw->dead) {
+ retval = -ENODEV;
+ goto out;
+ }
+
+ if (count > 32)
+ count = 32;
+
+ while (count--) {
+ if (get_user(c, buffer++)) {
+ retval = -EFAULT;
+ goto out;
+ }
+ if (serio_write(serio_raw->serio, c)) {
+ retval = -EIO;
+ goto out;
+ }
+ written++;
+ };
+
+out:
+ mutex_unlock(&serio_raw_mutex);
+ return written;
+}
+
+static unsigned int serio_raw_poll(struct file *file, poll_table *wait)
+{
+ struct serio_raw_client *client = file->private_data;
+ struct serio_raw *serio_raw = client->serio_raw;
+ unsigned int mask;
+
+ poll_wait(file, &serio_raw->wait, wait);
+
+ mask = serio_raw->dead ? POLLHUP | POLLERR : POLLOUT | POLLWRNORM;
+ if (serio_raw->head != serio_raw->tail)
+ return POLLIN | POLLRDNORM;
+
+ return 0;
+}
+
+static const struct file_operations serio_raw_fops = {
+ .owner = THIS_MODULE,
+ .open = serio_raw_open,
+ .release = serio_raw_release,
+ .read = serio_raw_read,
+ .write = serio_raw_write,
+ .poll = serio_raw_poll,
+ .fasync = serio_raw_fasync,
+ .llseek = noop_llseek,
+};
+
+
+/*********************************************************************
+ * Interface with serio port *
+ *********************************************************************/
+
+static irqreturn_t serio_raw_interrupt(struct serio *serio, unsigned char data,
+ unsigned int dfl)
+{
+ struct serio_raw *serio_raw = serio_get_drvdata(serio);
+ struct serio_raw_client *client;
+ unsigned int head = serio_raw->head;
+
+ /* we are holding serio->lock here so we are protected */
+ serio_raw->queue[head] = data;
+ head = (head + 1) % SERIO_RAW_QUEUE_LEN;
+ if (likely(head != serio_raw->tail)) {
+ serio_raw->head = head;
+ list_for_each_entry(client, &serio_raw->client_list, node)
+ kill_fasync(&client->fasync, SIGIO, POLL_IN);
+ wake_up_interruptible(&serio_raw->wait);
+ }
+
+ return IRQ_HANDLED;
+}
+
+static int serio_raw_connect(struct serio *serio, struct serio_driver *drv)
+{
+ static atomic_t serio_raw_no = ATOMIC_INIT(0);
+ struct serio_raw *serio_raw;
+ int err;
+
+ serio_raw = kzalloc(sizeof(struct serio_raw), GFP_KERNEL);
+ if (!serio_raw) {
+ dev_dbg(&serio->dev, "can't allocate memory for a device\n");
+ return -ENOMEM;
+ }
+
+ snprintf(serio_raw->name, sizeof(serio_raw->name),
+ "serio_raw%ld", (long)atomic_inc_return(&serio_raw_no) - 1);
+ kref_init(&serio_raw->kref);
+ INIT_LIST_HEAD(&serio_raw->client_list);
+ init_waitqueue_head(&serio_raw->wait);
+
+ serio_raw->serio = serio;
+ get_device(&serio->dev);
+
+ serio_set_drvdata(serio, serio_raw);
+
+ err = serio_open(serio, drv);
+ if (err)
+ goto err_free;
+
+ err = mutex_lock_killable(&serio_raw_mutex);
+ if (err)
+ goto err_close;
+
+ list_add_tail(&serio_raw->node, &serio_raw_list);
+ mutex_unlock(&serio_raw_mutex);
+
+ serio_raw->dev.minor = PSMOUSE_MINOR;
+ serio_raw->dev.name = serio_raw->name;
+ serio_raw->dev.parent = &serio->dev;
+ serio_raw->dev.fops = &serio_raw_fops;
+
+ err = misc_register(&serio_raw->dev);
+ if (err) {
+ serio_raw->dev.minor = MISC_DYNAMIC_MINOR;
+ err = misc_register(&serio_raw->dev);
+ }
+
+ if (err) {
+ dev_err(&serio->dev,
+ "failed to register raw access device for %s\n",
+ serio->phys);
+ goto err_unlink;
+ }
+
+ dev_info(&serio->dev, "raw access enabled on %s (%s, minor %d)\n",
+ serio->phys, serio_raw->name, serio_raw->dev.minor);
+ return 0;
+
+err_unlink:
+ list_del_init(&serio_raw->node);
+err_close:
+ serio_close(serio);
+err_free:
+ serio_set_drvdata(serio, NULL);
+ kref_put(&serio_raw->kref, serio_raw_free);
+ return err;
+}
+
+static int serio_raw_reconnect(struct serio *serio)
+{
+ struct serio_raw *serio_raw = serio_get_drvdata(serio);
+ struct serio_driver *drv = serio->drv;
+
+ if (!drv || !serio_raw) {
+ dev_dbg(&serio->dev,
+ "reconnect request, but serio is disconnected, ignoring...\n");
+ return -1;
+ }
+
+ /*
+ * Nothing needs to be done here, we just need this method to
+ * keep the same device.
+ */
+ return 0;
+}
+
+/*
+ * Wake up users waiting for IO so they can disconnect from
+ * dead device.
+ */
+static void serio_raw_hangup(struct serio_raw *serio_raw)
+{
+ struct serio_raw_client *client;
+
+ serio_pause_rx(serio_raw->serio);
+ list_for_each_entry(client, &serio_raw->client_list, node)
+ kill_fasync(&client->fasync, SIGIO, POLL_HUP);
+ serio_continue_rx(serio_raw->serio);
+
+ wake_up_interruptible(&serio_raw->wait);
+}
+
+
+static void serio_raw_disconnect(struct serio *serio)
+{
+ struct serio_raw *serio_raw = serio_get_drvdata(serio);
+
+ misc_deregister(&serio_raw->dev);
+
+ mutex_lock(&serio_raw_mutex);
+ serio_raw->dead = true;
+ list_del_init(&serio_raw->node);
+ mutex_unlock(&serio_raw_mutex);
+
+ serio_raw_hangup(serio_raw);
+
+ serio_close(serio);
+ kref_put(&serio_raw->kref, serio_raw_free);
+
+ serio_set_drvdata(serio, NULL);
+}
+
+static struct serio_device_id serio_raw_serio_ids[] = {
+ {
+ .type = SERIO_8042,
+ .proto = SERIO_ANY,
+ .id = SERIO_ANY,
+ .extra = SERIO_ANY,
+ },
+ {
+ .type = SERIO_8042_XL,
+ .proto = SERIO_ANY,
+ .id = SERIO_ANY,
+ .extra = SERIO_ANY,
+ },
+ { 0 }
+};
+
+MODULE_DEVICE_TABLE(serio, serio_raw_serio_ids);
+
+static struct serio_driver serio_raw_drv = {
+ .driver = {
+ .name = "serio_raw",
+ },
+ .description = DRIVER_DESC,
+ .id_table = serio_raw_serio_ids,
+ .interrupt = serio_raw_interrupt,
+ .connect = serio_raw_connect,
+ .reconnect = serio_raw_reconnect,
+ .disconnect = serio_raw_disconnect,
+ .manual_bind = true,
+};
+
+static int __init serio_raw_init(void)
+{
+ return serio_register_driver(&serio_raw_drv);
+}
+
+static void __exit serio_raw_exit(void)
+{
+ serio_unregister_driver(&serio_raw_drv);
+}
+
+module_init(serio_raw_init);
+module_exit(serio_raw_exit);
diff --git a/drivers/input/serio/serport.c b/drivers/input/serio/serport.c
new file mode 100644
index 0000000..8755f5f
--- /dev/null
+++ b/drivers/input/serio/serport.c
@@ -0,0 +1,268 @@
+/*
+ * Input device TTY line discipline
+ *
+ * Copyright (c) 1999-2002 Vojtech Pavlik
+ *
+ * This is a module that converts a tty line into a much simpler
+ * 'serial io port' abstraction that the input device drivers use.
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ */
+
+#include <asm/uaccess.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/serio.h>
+#include <linux/tty.h>
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
+MODULE_DESCRIPTION("Input device TTY line discipline");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_LDISC(N_MOUSE);
+
+#define SERPORT_BUSY 1
+#define SERPORT_ACTIVE 2
+#define SERPORT_DEAD 3
+
+struct serport {
+ struct tty_struct *tty;
+ wait_queue_head_t wait;
+ struct serio *serio;
+ struct serio_device_id id;
+ spinlock_t lock;
+ unsigned long flags;
+};
+
+/*
+ * Callback functions from the serio code.
+ */
+
+static int serport_serio_write(struct serio *serio, unsigned char data)
+{
+ struct serport *serport = serio->port_data;
+ return -(serport->tty->ops->write(serport->tty, &data, 1) != 1);
+}
+
+static int serport_serio_open(struct serio *serio)
+{
+ struct serport *serport = serio->port_data;
+ unsigned long flags;
+
+ spin_lock_irqsave(&serport->lock, flags);
+ set_bit(SERPORT_ACTIVE, &serport->flags);
+ spin_unlock_irqrestore(&serport->lock, flags);
+
+ return 0;
+}
+
+
+static void serport_serio_close(struct serio *serio)
+{
+ struct serport *serport = serio->port_data;
+ unsigned long flags;
+
+ spin_lock_irqsave(&serport->lock, flags);
+ clear_bit(SERPORT_ACTIVE, &serport->flags);
+ set_bit(SERPORT_DEAD, &serport->flags);
+ spin_unlock_irqrestore(&serport->lock, flags);
+
+ wake_up_interruptible(&serport->wait);
+}
+
+/*
+ * serport_ldisc_open() is the routine that is called upon setting our line
+ * discipline on a tty. It prepares the serio struct.
+ */
+
+static int serport_ldisc_open(struct tty_struct *tty)
+{
+ struct serport *serport;
+
+ if (!capable(CAP_SYS_ADMIN))
+ return -EPERM;
+
+ serport = kzalloc(sizeof(struct serport), GFP_KERNEL);
+ if (!serport)
+ return -ENOMEM;
+
+ serport->tty = tty;
+ spin_lock_init(&serport->lock);
+ init_waitqueue_head(&serport->wait);
+
+ tty->disc_data = serport;
+ tty->receive_room = 256;
+ set_bit(TTY_DO_WRITE_WAKEUP, &tty->flags);
+
+ return 0;
+}
+
+/*
+ * serport_ldisc_close() is the opposite of serport_ldisc_open()
+ */
+
+static void serport_ldisc_close(struct tty_struct *tty)
+{
+ struct serport *serport = (struct serport *) tty->disc_data;
+
+ kfree(serport);
+}
+
+/*
+ * serport_ldisc_receive() is called by the low level tty driver when characters
+ * are ready for us. We forward the characters and flags, one by one to the
+ * 'interrupt' routine.
+ */
+
+static void serport_ldisc_receive(struct tty_struct *tty, const unsigned char *cp, char *fp, int count)
+{
+ struct serport *serport = (struct serport*) tty->disc_data;
+ unsigned long flags;
+ unsigned int ch_flags;
+ int i;
+
+ spin_lock_irqsave(&serport->lock, flags);
+
+ if (!test_bit(SERPORT_ACTIVE, &serport->flags))
+ goto out;
+
+ for (i = 0; i < count; i++) {
+ switch (fp[i]) {
+ case TTY_FRAME:
+ ch_flags = SERIO_FRAME;
+ break;
+
+ case TTY_PARITY:
+ ch_flags = SERIO_PARITY;
+ break;
+
+ default:
+ ch_flags = 0;
+ break;
+ }
+
+ serio_interrupt(serport->serio, cp[i], ch_flags);
+ }
+
+out:
+ spin_unlock_irqrestore(&serport->lock, flags);
+}
+
+/*
+ * serport_ldisc_read() just waits indefinitely if everything goes well.
+ * However, when the serio driver closes the serio port, it finishes,
+ * returning 0 characters.
+ */
+
+static ssize_t serport_ldisc_read(struct tty_struct * tty, struct file * file, unsigned char __user * buf, size_t nr)
+{
+ struct serport *serport = (struct serport*) tty->disc_data;
+ struct serio *serio;
+ char name[64];
+
+ if (test_and_set_bit(SERPORT_BUSY, &serport->flags))
+ return -EBUSY;
+
+ serport->serio = serio = kzalloc(sizeof(struct serio), GFP_KERNEL);
+ if (!serio)
+ return -ENOMEM;
+
+ strlcpy(serio->name, "Serial port", sizeof(serio->name));
+ snprintf(serio->phys, sizeof(serio->phys), "%s/serio0", tty_name(tty, name));
+ serio->id = serport->id;
+ serio->id.type = SERIO_RS232;
+ serio->write = serport_serio_write;
+ serio->open = serport_serio_open;
+ serio->close = serport_serio_close;
+ serio->port_data = serport;
+ serio->dev.parent = tty->dev;
+
+ serio_register_port(serport->serio);
+ printk(KERN_INFO "serio: Serial port %s\n", tty_name(tty, name));
+
+ wait_event_interruptible(serport->wait, test_bit(SERPORT_DEAD, &serport->flags));
+ serio_unregister_port(serport->serio);
+ serport->serio = NULL;
+
+ clear_bit(SERPORT_DEAD, &serport->flags);
+ clear_bit(SERPORT_BUSY, &serport->flags);
+
+ return 0;
+}
+
+/*
+ * serport_ldisc_ioctl() allows to set the port protocol, and device ID
+ */
+
+static int serport_ldisc_ioctl(struct tty_struct * tty, struct file * file, unsigned int cmd, unsigned long arg)
+{
+ struct serport *serport = (struct serport*) tty->disc_data;
+ unsigned long type;
+
+ if (cmd == SPIOCSTYPE) {
+ if (get_user(type, (unsigned long __user *) arg))
+ return -EFAULT;
+
+ serport->id.proto = type & 0x000000ff;
+ serport->id.id = (type & 0x0000ff00) >> 8;
+ serport->id.extra = (type & 0x00ff0000) >> 16;
+
+ return 0;
+ }
+
+ return -EINVAL;
+}
+
+static void serport_ldisc_write_wakeup(struct tty_struct * tty)
+{
+ struct serport *serport = (struct serport *) tty->disc_data;
+ unsigned long flags;
+
+ spin_lock_irqsave(&serport->lock, flags);
+ if (test_bit(SERPORT_ACTIVE, &serport->flags))
+ serio_drv_write_wakeup(serport->serio);
+ spin_unlock_irqrestore(&serport->lock, flags);
+}
+
+/*
+ * The line discipline structure.
+ */
+
+static struct tty_ldisc_ops serport_ldisc = {
+ .owner = THIS_MODULE,
+ .name = "input",
+ .open = serport_ldisc_open,
+ .close = serport_ldisc_close,
+ .read = serport_ldisc_read,
+ .ioctl = serport_ldisc_ioctl,
+ .receive_buf = serport_ldisc_receive,
+ .write_wakeup = serport_ldisc_write_wakeup
+};
+
+/*
+ * The functions for insering/removing us as a module.
+ */
+
+static int __init serport_init(void)
+{
+ int retval;
+ retval = tty_register_ldisc(N_MOUSE, &serport_ldisc);
+ if (retval)
+ printk(KERN_ERR "serport.c: Error registering line discipline.\n");
+
+ return retval;
+}
+
+static void __exit serport_exit(void)
+{
+ tty_unregister_ldisc(N_MOUSE);
+}
+
+module_init(serport_init);
+module_exit(serport_exit);
diff --git a/drivers/input/serio/xilinx_ps2.c b/drivers/input/serio/xilinx_ps2.c
new file mode 100644
index 0000000..d64c5a4
--- /dev/null
+++ b/drivers/input/serio/xilinx_ps2.c
@@ -0,0 +1,389 @@
+/*
+ * Xilinx XPS PS/2 device driver
+ *
+ * (c) 2005 MontaVista Software, Inc.
+ * (c) 2008 Xilinx, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+
+#include <linux/module.h>
+#include <linux/serio.h>
+#include <linux/interrupt.h>
+#include <linux/errno.h>
+#include <linux/slab.h>
+#include <linux/init.h>
+#include <linux/list.h>
+#include <linux/io.h>
+#include <linux/of_address.h>
+#include <linux/of_device.h>
+#include <linux/of_platform.h>
+
+#define DRIVER_NAME "xilinx_ps2"
+
+/* Register offsets for the xps2 device */
+#define XPS2_SRST_OFFSET 0x00000000 /* Software Reset register */
+#define XPS2_STATUS_OFFSET 0x00000004 /* Status register */
+#define XPS2_RX_DATA_OFFSET 0x00000008 /* Receive Data register */
+#define XPS2_TX_DATA_OFFSET 0x0000000C /* Transmit Data register */
+#define XPS2_GIER_OFFSET 0x0000002C /* Global Interrupt Enable reg */
+#define XPS2_IPISR_OFFSET 0x00000030 /* Interrupt Status register */
+#define XPS2_IPIER_OFFSET 0x00000038 /* Interrupt Enable register */
+
+/* Reset Register Bit Definitions */
+#define XPS2_SRST_RESET 0x0000000A /* Software Reset */
+
+/* Status Register Bit Positions */
+#define XPS2_STATUS_RX_FULL 0x00000001 /* Receive Full */
+#define XPS2_STATUS_TX_FULL 0x00000002 /* Transmit Full */
+
+/* Bit definitions for ISR/IER registers. Both the registers have the same bit
+ * definitions and are only defined once. */
+#define XPS2_IPIXR_WDT_TOUT 0x00000001 /* Watchdog Timeout Interrupt */
+#define XPS2_IPIXR_TX_NOACK 0x00000002 /* Transmit No ACK Interrupt */
+#define XPS2_IPIXR_TX_ACK 0x00000004 /* Transmit ACK (Data) Interrupt */
+#define XPS2_IPIXR_RX_OVF 0x00000008 /* Receive Overflow Interrupt */
+#define XPS2_IPIXR_RX_ERR 0x00000010 /* Receive Error Interrupt */
+#define XPS2_IPIXR_RX_FULL 0x00000020 /* Receive Data Interrupt */
+
+/* Mask for all the Transmit Interrupts */
+#define XPS2_IPIXR_TX_ALL (XPS2_IPIXR_TX_NOACK | XPS2_IPIXR_TX_ACK)
+
+/* Mask for all the Receive Interrupts */
+#define XPS2_IPIXR_RX_ALL (XPS2_IPIXR_RX_OVF | XPS2_IPIXR_RX_ERR | \
+ XPS2_IPIXR_RX_FULL)
+
+/* Mask for all the Interrupts */
+#define XPS2_IPIXR_ALL (XPS2_IPIXR_TX_ALL | XPS2_IPIXR_RX_ALL | \
+ XPS2_IPIXR_WDT_TOUT)
+
+/* Global Interrupt Enable mask */
+#define XPS2_GIER_GIE_MASK 0x80000000
+
+struct xps2data {
+ int irq;
+ spinlock_t lock;
+ void __iomem *base_address; /* virt. address of control registers */
+ unsigned int flags;
+ struct serio serio; /* serio */
+};
+
+/************************************/
+/* XPS PS/2 data transmission calls */
+/************************************/
+
+/**
+ * xps2_recv() - attempts to receive a byte from the PS/2 port.
+ * @drvdata: pointer to ps2 device private data structure
+ * @byte: address where the read data will be copied
+ *
+ * If there is any data available in the PS/2 receiver, this functions reads
+ * the data, otherwise it returns error.
+ */
+static int xps2_recv(struct xps2data *drvdata, u8 *byte)
+{
+ u32 sr;
+ int status = -1;
+
+ /* If there is data available in the PS/2 receiver, read it */
+ sr = in_be32(drvdata->base_address + XPS2_STATUS_OFFSET);
+ if (sr & XPS2_STATUS_RX_FULL) {
+ *byte = in_be32(drvdata->base_address + XPS2_RX_DATA_OFFSET);
+ status = 0;
+ }
+
+ return status;
+}
+
+/*********************/
+/* Interrupt handler */
+/*********************/
+static irqreturn_t xps2_interrupt(int irq, void *dev_id)
+{
+ struct xps2data *drvdata = dev_id;
+ u32 intr_sr;
+ u8 c;
+ int status;
+
+ /* Get the PS/2 interrupts and clear them */
+ intr_sr = in_be32(drvdata->base_address + XPS2_IPISR_OFFSET);
+ out_be32(drvdata->base_address + XPS2_IPISR_OFFSET, intr_sr);
+
+ /* Check which interrupt is active */
+ if (intr_sr & XPS2_IPIXR_RX_OVF)
+ dev_warn(drvdata->serio.dev.parent, "receive overrun error\n");
+
+ if (intr_sr & XPS2_IPIXR_RX_ERR)
+ drvdata->flags |= SERIO_PARITY;
+
+ if (intr_sr & (XPS2_IPIXR_TX_NOACK | XPS2_IPIXR_WDT_TOUT))
+ drvdata->flags |= SERIO_TIMEOUT;
+
+ if (intr_sr & XPS2_IPIXR_RX_FULL) {
+ status = xps2_recv(drvdata, &c);
+
+ /* Error, if a byte is not received */
+ if (status) {
+ dev_err(drvdata->serio.dev.parent,
+ "wrong rcvd byte count (%d)\n", status);
+ } else {
+ serio_interrupt(&drvdata->serio, c, drvdata->flags);
+ drvdata->flags = 0;
+ }
+ }
+
+ return IRQ_HANDLED;
+}
+
+/*******************/
+/* serio callbacks */
+/*******************/
+
+/**
+ * sxps2_write() - sends a byte out through the PS/2 port.
+ * @pserio: pointer to the serio structure of the PS/2 port
+ * @c: data that needs to be written to the PS/2 port
+ *
+ * This function checks if the PS/2 transmitter is empty and sends a byte.
+ * Otherwise it returns error. Transmission fails only when nothing is connected
+ * to the PS/2 port. Thats why, we do not try to resend the data in case of a
+ * failure.
+ */
+static int sxps2_write(struct serio *pserio, unsigned char c)
+{
+ struct xps2data *drvdata = pserio->port_data;
+ unsigned long flags;
+ u32 sr;
+ int status = -1;
+
+ spin_lock_irqsave(&drvdata->lock, flags);
+
+ /* If the PS/2 transmitter is empty send a byte of data */
+ sr = in_be32(drvdata->base_address + XPS2_STATUS_OFFSET);
+ if (!(sr & XPS2_STATUS_TX_FULL)) {
+ out_be32(drvdata->base_address + XPS2_TX_DATA_OFFSET, c);
+ status = 0;
+ }
+
+ spin_unlock_irqrestore(&drvdata->lock, flags);
+
+ return status;
+}
+
+/**
+ * sxps2_open() - called when a port is opened by the higher layer.
+ * @pserio: pointer to the serio structure of the PS/2 device
+ *
+ * This function requests irq and enables interrupts for the PS/2 device.
+ */
+static int sxps2_open(struct serio *pserio)
+{
+ struct xps2data *drvdata = pserio->port_data;
+ int error;
+ u8 c;
+
+ error = request_irq(drvdata->irq, &xps2_interrupt, 0,
+ DRIVER_NAME, drvdata);
+ if (error) {
+ dev_err(drvdata->serio.dev.parent,
+ "Couldn't allocate interrupt %d\n", drvdata->irq);
+ return error;
+ }
+
+ /* start reception by enabling the interrupts */
+ out_be32(drvdata->base_address + XPS2_GIER_OFFSET, XPS2_GIER_GIE_MASK);
+ out_be32(drvdata->base_address + XPS2_IPIER_OFFSET, XPS2_IPIXR_RX_ALL);
+ (void)xps2_recv(drvdata, &c);
+
+ return 0; /* success */
+}
+
+/**
+ * sxps2_close() - frees the interrupt.
+ * @pserio: pointer to the serio structure of the PS/2 device
+ *
+ * This function frees the irq and disables interrupts for the PS/2 device.
+ */
+static void sxps2_close(struct serio *pserio)
+{
+ struct xps2data *drvdata = pserio->port_data;
+
+ /* Disable the PS2 interrupts */
+ out_be32(drvdata->base_address + XPS2_GIER_OFFSET, 0x00);
+ out_be32(drvdata->base_address + XPS2_IPIER_OFFSET, 0x00);
+ free_irq(drvdata->irq, drvdata);
+}
+
+/**
+ * xps2_of_probe - probe method for the PS/2 device.
+ * @of_dev: pointer to OF device structure
+ * @match: pointer to the structure used for matching a device
+ *
+ * This function probes the PS/2 device in the device tree.
+ * It initializes the driver data structure and the hardware.
+ * It returns 0, if the driver is bound to the PS/2 device, or a negative
+ * value if there is an error.
+ */
+static int __devinit xps2_of_probe(struct platform_device *ofdev)
+{
+ struct resource r_irq; /* Interrupt resources */
+ struct resource r_mem; /* IO mem resources */
+ struct xps2data *drvdata;
+ struct serio *serio;
+ struct device *dev = &ofdev->dev;
+ resource_size_t remap_size, phys_addr;
+ int error;
+
+ dev_info(dev, "Device Tree Probing \'%s\'\n",
+ ofdev->dev.of_node->name);
+
+ /* Get iospace for the device */
+ error = of_address_to_resource(ofdev->dev.of_node, 0, &r_mem);
+ if (error) {
+ dev_err(dev, "invalid address\n");
+ return error;
+ }
+
+ /* Get IRQ for the device */
+ if (of_irq_to_resource(ofdev->dev.of_node, 0, &r_irq) == NO_IRQ) {
+ dev_err(dev, "no IRQ found\n");
+ return -ENODEV;
+ }
+
+ drvdata = kzalloc(sizeof(struct xps2data), GFP_KERNEL);
+ if (!drvdata) {
+ dev_err(dev, "Couldn't allocate device private record\n");
+ return -ENOMEM;
+ }
+
+ dev_set_drvdata(dev, drvdata);
+
+ spin_lock_init(&drvdata->lock);
+ drvdata->irq = r_irq.start;
+
+ phys_addr = r_mem.start;
+ remap_size = resource_size(&r_mem);
+ if (!request_mem_region(phys_addr, remap_size, DRIVER_NAME)) {
+ dev_err(dev, "Couldn't lock memory region at 0x%08llX\n",
+ (unsigned long long)phys_addr);
+ error = -EBUSY;
+ goto failed1;
+ }
+
+ /* Fill in configuration data and add them to the list */
+ drvdata->base_address = ioremap(phys_addr, remap_size);
+ if (drvdata->base_address == NULL) {
+ dev_err(dev, "Couldn't ioremap memory at 0x%08llX\n",
+ (unsigned long long)phys_addr);
+ error = -EFAULT;
+ goto failed2;
+ }
+
+ /* Disable all the interrupts, just in case */
+ out_be32(drvdata->base_address + XPS2_IPIER_OFFSET, 0);
+
+ /* Reset the PS2 device and abort any current transaction, to make sure
+ * we have the PS2 in a good state */
+ out_be32(drvdata->base_address + XPS2_SRST_OFFSET, XPS2_SRST_RESET);
+
+ dev_info(dev, "Xilinx PS2 at 0x%08llX mapped to 0x%p, irq=%d\n",
+ (unsigned long long)phys_addr, drvdata->base_address,
+ drvdata->irq);
+
+ serio = &drvdata->serio;
+ serio->id.type = SERIO_8042;
+ serio->write = sxps2_write;
+ serio->open = sxps2_open;
+ serio->close = sxps2_close;
+ serio->port_data = drvdata;
+ serio->dev.parent = dev;
+ snprintf(serio->name, sizeof(serio->name),
+ "Xilinx XPS PS/2 at %08llX", (unsigned long long)phys_addr);
+ snprintf(serio->phys, sizeof(serio->phys),
+ "xilinxps2/serio at %08llX", (unsigned long long)phys_addr);
+
+ serio_register_port(serio);
+
+ return 0; /* success */
+
+failed2:
+ release_mem_region(phys_addr, remap_size);
+failed1:
+ kfree(drvdata);
+ dev_set_drvdata(dev, NULL);
+
+ return error;
+}
+
+/**
+ * xps2_of_remove - unbinds the driver from the PS/2 device.
+ * @of_dev: pointer to OF device structure
+ *
+ * This function is called if a device is physically removed from the system or
+ * if the driver module is being unloaded. It frees any resources allocated to
+ * the device.
+ */
+static int __devexit xps2_of_remove(struct platform_device *of_dev)
+{
+ struct device *dev = &of_dev->dev;
+ struct xps2data *drvdata = dev_get_drvdata(dev);
+ struct resource r_mem; /* IO mem resources */
+
+ serio_unregister_port(&drvdata->serio);
+ iounmap(drvdata->base_address);
+
+ /* Get iospace of the device */
+ if (of_address_to_resource(of_dev->dev.of_node, 0, &r_mem))
+ dev_err(dev, "invalid address\n");
+ else
+ release_mem_region(r_mem.start, resource_size(&r_mem));
+
+ kfree(drvdata);
+
+ dev_set_drvdata(dev, NULL);
+
+ return 0;
+}
+
+/* Match table for of_platform binding */
+static const struct of_device_id xps2_of_match[] __devinitconst = {
+ { .compatible = "xlnx,xps-ps2-1.00.a", },
+ { /* end of list */ },
+};
+MODULE_DEVICE_TABLE(of, xps2_of_match);
+
+static struct platform_driver xps2_of_driver = {
+ .driver = {
+ .name = DRIVER_NAME,
+ .owner = THIS_MODULE,
+ .of_match_table = xps2_of_match,
+ },
+ .probe = xps2_of_probe,
+ .remove = __devexit_p(xps2_of_remove),
+};
+
+static int __init xps2_init(void)
+{
+ return platform_driver_register(&xps2_of_driver);
+}
+
+static void __exit xps2_cleanup(void)
+{
+ platform_driver_unregister(&xps2_of_driver);
+}
+
+module_init(xps2_init);
+module_exit(xps2_cleanup);
+
+MODULE_AUTHOR("Xilinx, Inc.");
+MODULE_DESCRIPTION("Xilinx XPS PS/2 driver");
+MODULE_LICENSE("GPL");
+
diff --git a/drivers/input/sparse-keymap.c b/drivers/input/sparse-keymap.c
new file mode 100644
index 0000000..75fb040
--- /dev/null
+++ b/drivers/input/sparse-keymap.c
@@ -0,0 +1,332 @@
+/*
+ * Generic support for sparse keymaps
+ *
+ * Copyright (c) 2009 Dmitry Torokhov
+ *
+ * Derived from wistron button driver:
+ * Copyright (C) 2005 Miloslav Trmac <mitr@volny.cz>
+ * Copyright (C) 2005 Bernhard Rosenkraenzer <bero@arklinux.org>
+ * Copyright (C) 2005 Dmitry Torokhov <dtor@mail.ru>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ */
+
+#include <linux/input.h>
+#include <linux/input/sparse-keymap.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+
+MODULE_AUTHOR("Dmitry Torokhov <dtor@mail.ru>");
+MODULE_DESCRIPTION("Generic support for sparse keymaps");
+MODULE_LICENSE("GPL v2");
+MODULE_VERSION("0.1");
+
+static unsigned int sparse_keymap_get_key_index(struct input_dev *dev,
+ const struct key_entry *k)
+{
+ struct key_entry *key;
+ unsigned int idx = 0;
+
+ for (key = dev->keycode; key->type != KE_END; key++) {
+ if (key->type == KE_KEY) {
+ if (key == k)
+ break;
+ idx++;
+ }
+ }
+
+ return idx;
+}
+
+static struct key_entry *sparse_keymap_entry_by_index(struct input_dev *dev,
+ unsigned int index)
+{
+ struct key_entry *key;
+ unsigned int key_cnt = 0;
+
+ for (key = dev->keycode; key->type != KE_END; key++)
+ if (key->type == KE_KEY)
+ if (key_cnt++ == index)
+ return key;
+
+ return NULL;
+}
+
+/**
+ * sparse_keymap_entry_from_scancode - perform sparse keymap lookup
+ * @dev: Input device using sparse keymap
+ * @code: Scan code
+ *
+ * This function is used to perform &struct key_entry lookup in an
+ * input device using sparse keymap.
+ */
+struct key_entry *sparse_keymap_entry_from_scancode(struct input_dev *dev,
+ unsigned int code)
+{
+ struct key_entry *key;
+
+ for (key = dev->keycode; key->type != KE_END; key++)
+ if (code == key->code)
+ return key;
+
+ return NULL;
+}
+EXPORT_SYMBOL(sparse_keymap_entry_from_scancode);
+
+/**
+ * sparse_keymap_entry_from_keycode - perform sparse keymap lookup
+ * @dev: Input device using sparse keymap
+ * @keycode: Key code
+ *
+ * This function is used to perform &struct key_entry lookup in an
+ * input device using sparse keymap.
+ */
+struct key_entry *sparse_keymap_entry_from_keycode(struct input_dev *dev,
+ unsigned int keycode)
+{
+ struct key_entry *key;
+
+ for (key = dev->keycode; key->type != KE_END; key++)
+ if (key->type == KE_KEY && keycode == key->keycode)
+ return key;
+
+ return NULL;
+}
+EXPORT_SYMBOL(sparse_keymap_entry_from_keycode);
+
+static struct key_entry *sparse_keymap_locate(struct input_dev *dev,
+ const struct input_keymap_entry *ke)
+{
+ struct key_entry *key;
+ unsigned int scancode;
+
+ if (ke->flags & INPUT_KEYMAP_BY_INDEX)
+ key = sparse_keymap_entry_by_index(dev, ke->index);
+ else if (input_scancode_to_scalar(ke, &scancode) == 0)
+ key = sparse_keymap_entry_from_scancode(dev, scancode);
+ else
+ key = NULL;
+
+ return key;
+}
+
+static int sparse_keymap_getkeycode(struct input_dev *dev,
+ struct input_keymap_entry *ke)
+{
+ const struct key_entry *key;
+
+ if (dev->keycode) {
+ key = sparse_keymap_locate(dev, ke);
+ if (key && key->type == KE_KEY) {
+ ke->keycode = key->keycode;
+ if (!(ke->flags & INPUT_KEYMAP_BY_INDEX))
+ ke->index =
+ sparse_keymap_get_key_index(dev, key);
+ ke->len = sizeof(key->code);
+ memcpy(ke->scancode, &key->code, sizeof(key->code));
+ return 0;
+ }
+ }
+
+ return -EINVAL;
+}
+
+static int sparse_keymap_setkeycode(struct input_dev *dev,
+ const struct input_keymap_entry *ke,
+ unsigned int *old_keycode)
+{
+ struct key_entry *key;
+
+ if (dev->keycode) {
+ key = sparse_keymap_locate(dev, ke);
+ if (key && key->type == KE_KEY) {
+ *old_keycode = key->keycode;
+ key->keycode = ke->keycode;
+ set_bit(ke->keycode, dev->keybit);
+ if (!sparse_keymap_entry_from_keycode(dev, *old_keycode))
+ clear_bit(*old_keycode, dev->keybit);
+ return 0;
+ }
+ }
+
+ return -EINVAL;
+}
+
+/**
+ * sparse_keymap_setup - set up sparse keymap for an input device
+ * @dev: Input device
+ * @keymap: Keymap in form of array of &key_entry structures ending
+ * with %KE_END type entry
+ * @setup: Function that can be used to adjust keymap entries
+ * depending on device's deeds, may be %NULL
+ *
+ * The function calculates size and allocates copy of the original
+ * keymap after which sets up input device event bits appropriately.
+ * Before destroying input device allocated keymap should be freed
+ * with a call to sparse_keymap_free().
+ */
+int sparse_keymap_setup(struct input_dev *dev,
+ const struct key_entry *keymap,
+ int (*setup)(struct input_dev *, struct key_entry *))
+{
+ size_t map_size = 1; /* to account for the last KE_END entry */
+ const struct key_entry *e;
+ struct key_entry *map, *entry;
+ int i;
+ int error;
+
+ for (e = keymap; e->type != KE_END; e++)
+ map_size++;
+
+ map = kcalloc(map_size, sizeof (struct key_entry), GFP_KERNEL);
+ if (!map)
+ return -ENOMEM;
+
+ memcpy(map, keymap, map_size * sizeof (struct key_entry));
+
+ for (i = 0; i < map_size; i++) {
+ entry = &map[i];
+
+ if (setup) {
+ error = setup(dev, entry);
+ if (error)
+ goto err_out;
+ }
+
+ switch (entry->type) {
+ case KE_KEY:
+ __set_bit(EV_KEY, dev->evbit);
+ __set_bit(entry->keycode, dev->keybit);
+ break;
+
+ case KE_SW:
+ case KE_VSW:
+ __set_bit(EV_SW, dev->evbit);
+ __set_bit(entry->sw.code, dev->swbit);
+ break;
+ }
+ }
+
+ if (test_bit(EV_KEY, dev->evbit)) {
+ __set_bit(KEY_UNKNOWN, dev->keybit);
+ __set_bit(EV_MSC, dev->evbit);
+ __set_bit(MSC_SCAN, dev->mscbit);
+ }
+
+ dev->keycode = map;
+ dev->keycodemax = map_size;
+ dev->getkeycode = sparse_keymap_getkeycode;
+ dev->setkeycode = sparse_keymap_setkeycode;
+
+ return 0;
+
+ err_out:
+ kfree(map);
+ return error;
+}
+EXPORT_SYMBOL(sparse_keymap_setup);
+
+/**
+ * sparse_keymap_free - free memory allocated for sparse keymap
+ * @dev: Input device using sparse keymap
+ *
+ * This function is used to free memory allocated by sparse keymap
+ * in an input device that was set up by sparse_keymap_setup().
+ * NOTE: It is safe to cal this function while input device is
+ * still registered (however the drivers should care not to try to
+ * use freed keymap and thus have to shut off interrups/polling
+ * before freeing the keymap).
+ */
+void sparse_keymap_free(struct input_dev *dev)
+{
+ unsigned long flags;
+
+ /*
+ * Take event lock to prevent racing with input_get_keycode()
+ * and input_set_keycode() if we are called while input device
+ * is still registered.
+ */
+ spin_lock_irqsave(&dev->event_lock, flags);
+
+ kfree(dev->keycode);
+ dev->keycode = NULL;
+ dev->keycodemax = 0;
+
+ spin_unlock_irqrestore(&dev->event_lock, flags);
+}
+EXPORT_SYMBOL(sparse_keymap_free);
+
+/**
+ * sparse_keymap_report_entry - report event corresponding to given key entry
+ * @dev: Input device for which event should be reported
+ * @ke: key entry describing event
+ * @value: Value that should be reported (ignored by %KE_SW entries)
+ * @autorelease: Signals whether release event should be emitted for %KE_KEY
+ * entries right after reporting press event, ignored by all other
+ * entries
+ *
+ * This function is used to report input event described by given
+ * &struct key_entry.
+ */
+void sparse_keymap_report_entry(struct input_dev *dev, const struct key_entry *ke,
+ unsigned int value, bool autorelease)
+{
+ switch (ke->type) {
+ case KE_KEY:
+ input_event(dev, EV_MSC, MSC_SCAN, ke->code);
+ input_report_key(dev, ke->keycode, value);
+ input_sync(dev);
+ if (value && autorelease) {
+ input_report_key(dev, ke->keycode, 0);
+ input_sync(dev);
+ }
+ break;
+
+ case KE_SW:
+ value = ke->sw.value;
+ /* fall through */
+
+ case KE_VSW:
+ input_report_switch(dev, ke->sw.code, value);
+ break;
+ }
+}
+EXPORT_SYMBOL(sparse_keymap_report_entry);
+
+/**
+ * sparse_keymap_report_event - report event corresponding to given scancode
+ * @dev: Input device using sparse keymap
+ * @code: Scan code
+ * @value: Value that should be reported (ignored by %KE_SW entries)
+ * @autorelease: Signals whether release event should be emitted for %KE_KEY
+ * entries right after reporting press event, ignored by all other
+ * entries
+ *
+ * This function is used to perform lookup in an input device using sparse
+ * keymap and report corresponding event. Returns %true if lookup was
+ * successful and %false otherwise.
+ */
+bool sparse_keymap_report_event(struct input_dev *dev, unsigned int code,
+ unsigned int value, bool autorelease)
+{
+ const struct key_entry *ke =
+ sparse_keymap_entry_from_scancode(dev, code);
+ struct key_entry unknown_ke;
+
+ if (ke) {
+ sparse_keymap_report_entry(dev, ke, value, autorelease);
+ return true;
+ }
+
+ /* Report an unknown key event as a debugging aid */
+ unknown_ke.type = KE_KEY;
+ unknown_ke.code = code;
+ unknown_ke.keycode = KEY_UNKNOWN;
+ sparse_keymap_report_entry(dev, &unknown_ke, value, true);
+
+ return false;
+}
+EXPORT_SYMBOL(sparse_keymap_report_event);
+
diff --git a/drivers/input/tablet/Kconfig b/drivers/input/tablet/Kconfig
new file mode 100644
index 0000000..58a8775
--- /dev/null
+++ b/drivers/input/tablet/Kconfig
@@ -0,0 +1,89 @@
+#
+# Tablet driver configuration
+#
+menuconfig INPUT_TABLET
+ bool "Tablets"
+ help
+ Say Y here, and a list of supported tablets will be displayed.
+ This option doesn't affect the kernel.
+
+ If unsure, say Y.
+
+if INPUT_TABLET
+
+config TABLET_USB_ACECAD
+ tristate "Acecad Flair tablet support (USB)"
+ depends on USB_ARCH_HAS_HCD
+ select USB
+ help
+ Say Y here if you want to use the USB version of the Acecad Flair
+ tablet. Make sure to say Y to "Mouse support"
+ (CONFIG_INPUT_MOUSEDEV) and/or "Event interface support"
+ (CONFIG_INPUT_EVDEV) as well.
+
+ To compile this driver as a module, choose M here: the
+ module will be called acecad.
+
+config TABLET_USB_AIPTEK
+ tristate "Aiptek 6000U/8000U and Genius G_PEN tablet support (USB)"
+ depends on USB_ARCH_HAS_HCD
+ select USB
+ help
+ Say Y here if you want to use the USB version of the Aiptek 6000U,
+ Aiptek 8000U or Genius G-PEN 560 tablet. Make sure to say Y to
+ "Mouse support" (CONFIG_INPUT_MOUSEDEV) and/or "Event interface
+ support" (CONFIG_INPUT_EVDEV) as well.
+
+ To compile this driver as a module, choose M here: the
+ module will be called aiptek.
+
+config TABLET_USB_GTCO
+ tristate "GTCO CalComp/InterWrite USB Support"
+ depends on USB && INPUT
+ help
+ Say Y here if you want to use the USB version of the GTCO
+ CalComp/InterWrite Tablet. Make sure to say Y to "Mouse support"
+ (CONFIG_INPUT_MOUSEDEV) and/or "Event interface support"
+ (CONFIG_INPUT_EVDEV) as well.
+
+ To compile this driver as a module, choose M here: the
+ module will be called gtco.
+
+config TABLET_USB_HANWANG
+ tristate "Hanwang Art Master III tablet support (USB)"
+ depends on USB_ARCH_HAS_HCD
+ select USB
+ help
+ Say Y here if you want to use the USB version of the Hanwang Art
+ Master III tablet.
+
+ To compile this driver as a module, choose M here: the
+ module will be called hanwang.
+
+config TABLET_USB_KBTAB
+ tristate "KB Gear JamStudio tablet support (USB)"
+ depends on USB_ARCH_HAS_HCD
+ select USB
+ help
+ Say Y here if you want to use the USB version of the KB Gear
+ JamStudio tablet. Make sure to say Y to "Mouse support"
+ (CONFIG_INPUT_MOUSEDEV) and/or "Event interface support"
+ (CONFIG_INPUT_EVDEV) as well.
+
+ To compile this driver as a module, choose M here: the
+ module will be called kbtab.
+
+config TABLET_USB_WACOM
+ tristate "Wacom Intuos/Graphire tablet support (USB)"
+ depends on USB_ARCH_HAS_HCD
+ select USB
+ help
+ Say Y here if you want to use the USB version of the Wacom Intuos
+ or Graphire tablet. Make sure to say Y to "Mouse support"
+ (CONFIG_INPUT_MOUSEDEV) and/or "Event interface support"
+ (CONFIG_INPUT_EVDEV) as well.
+
+ To compile this driver as a module, choose M here: the
+ module will be called wacom.
+
+endif
diff --git a/drivers/input/tablet/Makefile b/drivers/input/tablet/Makefile
new file mode 100644
index 0000000..3f6c252
--- /dev/null
+++ b/drivers/input/tablet/Makefile
@@ -0,0 +1,13 @@
+#
+# Makefile for the tablet drivers
+#
+
+# Multipart objects.
+wacom-objs := wacom_wac.o wacom_sys.o
+
+obj-$(CONFIG_TABLET_USB_ACECAD) += acecad.o
+obj-$(CONFIG_TABLET_USB_AIPTEK) += aiptek.o
+obj-$(CONFIG_TABLET_USB_GTCO) += gtco.o
+obj-$(CONFIG_TABLET_USB_HANWANG) += hanwang.o
+obj-$(CONFIG_TABLET_USB_KBTAB) += kbtab.o
+obj-$(CONFIG_TABLET_USB_WACOM) += wacom.o
diff --git a/drivers/input/tablet/acecad.c b/drivers/input/tablet/acecad.c
new file mode 100644
index 0000000..d94f7e9
--- /dev/null
+++ b/drivers/input/tablet/acecad.c
@@ -0,0 +1,287 @@
+/*
+ * Copyright (c) 2001-2005 Edouard TISSERANT <edouard.tisserant@wanadoo.fr>
+ * Copyright (c) 2004-2005 Stephane VOLTZ <svoltz@numericable.fr>
+ *
+ * USB Acecad "Acecad Flair" tablet support
+ *
+ * Changelog:
+ * v3.2 - Added sysfs support
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/usb/input.h>
+
+/*
+ * Version Information
+ */
+#define DRIVER_VERSION "v3.2"
+#define DRIVER_DESC "USB Acecad Flair tablet driver"
+#define DRIVER_LICENSE "GPL"
+#define DRIVER_AUTHOR "Edouard TISSERANT <edouard.tisserant@wanadoo.fr>"
+
+MODULE_AUTHOR(DRIVER_AUTHOR);
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE(DRIVER_LICENSE);
+
+#define USB_VENDOR_ID_ACECAD 0x0460
+#define USB_DEVICE_ID_FLAIR 0x0004
+#define USB_DEVICE_ID_302 0x0008
+
+struct usb_acecad {
+ char name[128];
+ char phys[64];
+ struct usb_device *usbdev;
+ struct input_dev *input;
+ struct urb *irq;
+
+ unsigned char *data;
+ dma_addr_t data_dma;
+};
+
+static void usb_acecad_irq(struct urb *urb)
+{
+ struct usb_acecad *acecad = urb->context;
+ unsigned char *data = acecad->data;
+ struct input_dev *dev = acecad->input;
+ int prox, status;
+
+ switch (urb->status) {
+ case 0:
+ /* success */
+ break;
+ case -ECONNRESET:
+ case -ENOENT:
+ case -ESHUTDOWN:
+ /* this urb is terminated, clean up */
+ dbg("%s - urb shutting down with status: %d", __func__, urb->status);
+ return;
+ default:
+ dbg("%s - nonzero urb status received: %d", __func__, urb->status);
+ goto resubmit;
+ }
+
+ prox = (data[0] & 0x04) >> 2;
+ input_report_key(dev, BTN_TOOL_PEN, prox);
+
+ if (prox) {
+ int x = data[1] | (data[2] << 8);
+ int y = data[3] | (data[4] << 8);
+ /* Pressure should compute the same way for flair and 302 */
+ int pressure = data[5] | (data[6] << 8);
+ int touch = data[0] & 0x01;
+ int stylus = (data[0] & 0x10) >> 4;
+ int stylus2 = (data[0] & 0x20) >> 5;
+ input_report_abs(dev, ABS_X, x);
+ input_report_abs(dev, ABS_Y, y);
+ input_report_abs(dev, ABS_PRESSURE, pressure);
+ input_report_key(dev, BTN_TOUCH, touch);
+ input_report_key(dev, BTN_STYLUS, stylus);
+ input_report_key(dev, BTN_STYLUS2, stylus2);
+ }
+
+ /* event termination */
+ input_sync(dev);
+
+resubmit:
+ status = usb_submit_urb(urb, GFP_ATOMIC);
+ if (status)
+ err("can't resubmit intr, %s-%s/input0, status %d",
+ acecad->usbdev->bus->bus_name, acecad->usbdev->devpath, status);
+}
+
+static int usb_acecad_open(struct input_dev *dev)
+{
+ struct usb_acecad *acecad = input_get_drvdata(dev);
+
+ acecad->irq->dev = acecad->usbdev;
+ if (usb_submit_urb(acecad->irq, GFP_KERNEL))
+ return -EIO;
+
+ return 0;
+}
+
+static void usb_acecad_close(struct input_dev *dev)
+{
+ struct usb_acecad *acecad = input_get_drvdata(dev);
+
+ usb_kill_urb(acecad->irq);
+}
+
+static int usb_acecad_probe(struct usb_interface *intf, const struct usb_device_id *id)
+{
+ struct usb_device *dev = interface_to_usbdev(intf);
+ struct usb_host_interface *interface = intf->cur_altsetting;
+ struct usb_endpoint_descriptor *endpoint;
+ struct usb_acecad *acecad;
+ struct input_dev *input_dev;
+ int pipe, maxp;
+ int err;
+
+ if (interface->desc.bNumEndpoints != 1)
+ return -ENODEV;
+
+ endpoint = &interface->endpoint[0].desc;
+
+ if (!usb_endpoint_is_int_in(endpoint))
+ return -ENODEV;
+
+ pipe = usb_rcvintpipe(dev, endpoint->bEndpointAddress);
+ maxp = usb_maxpacket(dev, pipe, usb_pipeout(pipe));
+
+ acecad = kzalloc(sizeof(struct usb_acecad), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!acecad || !input_dev) {
+ err = -ENOMEM;
+ goto fail1;
+ }
+
+ acecad->data = usb_alloc_coherent(dev, 8, GFP_KERNEL, &acecad->data_dma);
+ if (!acecad->data) {
+ err= -ENOMEM;
+ goto fail1;
+ }
+
+ acecad->irq = usb_alloc_urb(0, GFP_KERNEL);
+ if (!acecad->irq) {
+ err = -ENOMEM;
+ goto fail2;
+ }
+
+ acecad->usbdev = dev;
+ acecad->input = input_dev;
+
+ if (dev->manufacturer)
+ strlcpy(acecad->name, dev->manufacturer, sizeof(acecad->name));
+
+ if (dev->product) {
+ if (dev->manufacturer)
+ strlcat(acecad->name, " ", sizeof(acecad->name));
+ strlcat(acecad->name, dev->product, sizeof(acecad->name));
+ }
+
+ usb_make_path(dev, acecad->phys, sizeof(acecad->phys));
+ strlcat(acecad->phys, "/input0", sizeof(acecad->phys));
+
+ input_dev->name = acecad->name;
+ input_dev->phys = acecad->phys;
+ usb_to_input_id(dev, &input_dev->id);
+ input_dev->dev.parent = &intf->dev;
+
+ input_set_drvdata(input_dev, acecad);
+
+ input_dev->open = usb_acecad_open;
+ input_dev->close = usb_acecad_close;
+
+ input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
+ input_dev->keybit[BIT_WORD(BTN_DIGI)] = BIT_MASK(BTN_TOOL_PEN) |
+ BIT_MASK(BTN_TOUCH) | BIT_MASK(BTN_STYLUS) |
+ BIT_MASK(BTN_STYLUS2);
+
+ switch (id->driver_info) {
+ case 0:
+ input_set_abs_params(input_dev, ABS_X, 0, 5000, 4, 0);
+ input_set_abs_params(input_dev, ABS_Y, 0, 3750, 4, 0);
+ input_set_abs_params(input_dev, ABS_PRESSURE, 0, 512, 0, 0);
+ if (!strlen(acecad->name))
+ snprintf(acecad->name, sizeof(acecad->name),
+ "USB Acecad Flair Tablet %04x:%04x",
+ le16_to_cpu(dev->descriptor.idVendor),
+ le16_to_cpu(dev->descriptor.idProduct));
+ break;
+
+ case 1:
+ input_set_abs_params(input_dev, ABS_X, 0, 53000, 4, 0);
+ input_set_abs_params(input_dev, ABS_Y, 0, 2250, 4, 0);
+ input_set_abs_params(input_dev, ABS_PRESSURE, 0, 1024, 0, 0);
+ if (!strlen(acecad->name))
+ snprintf(acecad->name, sizeof(acecad->name),
+ "USB Acecad 302 Tablet %04x:%04x",
+ le16_to_cpu(dev->descriptor.idVendor),
+ le16_to_cpu(dev->descriptor.idProduct));
+ break;
+ }
+
+ usb_fill_int_urb(acecad->irq, dev, pipe,
+ acecad->data, maxp > 8 ? 8 : maxp,
+ usb_acecad_irq, acecad, endpoint->bInterval);
+ acecad->irq->transfer_dma = acecad->data_dma;
+ acecad->irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
+
+ err = input_register_device(acecad->input);
+ if (err)
+ goto fail3;
+
+ usb_set_intfdata(intf, acecad);
+
+ return 0;
+
+ fail3: usb_free_urb(acecad->irq);
+ fail2: usb_free_coherent(dev, 8, acecad->data, acecad->data_dma);
+ fail1: input_free_device(input_dev);
+ kfree(acecad);
+ return err;
+}
+
+static void usb_acecad_disconnect(struct usb_interface *intf)
+{
+ struct usb_acecad *acecad = usb_get_intfdata(intf);
+
+ usb_set_intfdata(intf, NULL);
+
+ input_unregister_device(acecad->input);
+ usb_free_urb(acecad->irq);
+ usb_free_coherent(acecad->usbdev, 8, acecad->data, acecad->data_dma);
+ kfree(acecad);
+}
+
+static struct usb_device_id usb_acecad_id_table [] = {
+ { USB_DEVICE(USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_FLAIR), .driver_info = 0 },
+ { USB_DEVICE(USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_302), .driver_info = 1 },
+ { }
+};
+
+MODULE_DEVICE_TABLE(usb, usb_acecad_id_table);
+
+static struct usb_driver usb_acecad_driver = {
+ .name = "usb_acecad",
+ .probe = usb_acecad_probe,
+ .disconnect = usb_acecad_disconnect,
+ .id_table = usb_acecad_id_table,
+};
+
+static int __init usb_acecad_init(void)
+{
+ int result = usb_register(&usb_acecad_driver);
+ if (result == 0)
+ printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":"
+ DRIVER_DESC "\n");
+ return result;
+}
+
+static void __exit usb_acecad_exit(void)
+{
+ usb_deregister(&usb_acecad_driver);
+}
+
+module_init(usb_acecad_init);
+module_exit(usb_acecad_exit);
diff --git a/drivers/input/tablet/aiptek.c b/drivers/input/tablet/aiptek.c
new file mode 100644
index 0000000..6d89fd1
--- /dev/null
+++ b/drivers/input/tablet/aiptek.c
@@ -0,0 +1,1948 @@
+/*
+ * Native support for the Aiptek HyperPen USB Tablets
+ * (4000U/5000U/6000U/8000U/12000U)
+ *
+ * Copyright (c) 2001 Chris Atenasio <chris@crud.net>
+ * Copyright (c) 2002-2004 Bryan W. Headley <bwheadley@earthlink.net>
+ *
+ * based on wacom.c by
+ * Vojtech Pavlik <vojtech@suse.cz>
+ * Andreas Bach Aaen <abach@stofanet.dk>
+ * Clifford Wolf <clifford@clifford.at>
+ * Sam Mosel <sam.mosel@computer.org>
+ * James E. Blair <corvus@gnu.org>
+ * Daniel Egger <egger@suse.de>
+ *
+ * Many thanks to Oliver Kuechemann for his support.
+ *
+ * ChangeLog:
+ * v0.1 - Initial release
+ * v0.2 - Hack to get around fake event 28's. (Bryan W. Headley)
+ * v0.3 - Make URB dynamic (Bryan W. Headley, Jun-8-2002)
+ * Released to Linux 2.4.19 and 2.5.x
+ * v0.4 - Rewrote substantial portions of the code to deal with
+ * corrected control sequences, timing, dynamic configuration,
+ * support of 6000U - 12000U, procfs, and macro key support
+ * (Jan-1-2003 - Feb-5-2003, Bryan W. Headley)
+ * v1.0 - Added support for diagnostic messages, count of messages
+ * received from URB - Mar-8-2003, Bryan W. Headley
+ * v1.1 - added support for tablet resolution, changed DV and proximity
+ * some corrections - Jun-22-2003, martin schneebacher
+ * - Added support for the sysfs interface, deprecating the
+ * procfs interface for 2.5.x kernel. Also added support for
+ * Wheel command. Bryan W. Headley July-15-2003.
+ * v1.2 - Reworked jitter timer as a kernel thread.
+ * Bryan W. Headley November-28-2003/Jan-10-2004.
+ * v1.3 - Repaired issue of kernel thread going nuts on single-processor
+ * machines, introduced programmableDelay as a command line
+ * parameter. Feb 7 2004, Bryan W. Headley.
+ * v1.4 - Re-wire jitter so it does not require a thread. Courtesy of
+ * Rene van Paassen. Added reporting of physical pointer device
+ * (e.g., stylus, mouse in reports 2, 3, 4, 5. We don't know
+ * for reports 1, 6.)
+ * what physical device reports for reports 1, 6.) Also enabled
+ * MOUSE and LENS tool button modes. Renamed "rubber" to "eraser".
+ * Feb 20, 2004, Bryan W. Headley.
+ * v1.5 - Added previousJitterable, so we don't do jitter delay when the
+ * user is holding a button down for periods of time.
+ *
+ * NOTE:
+ * This kernel driver is augmented by the "Aiptek" XFree86 input
+ * driver for your X server, as well as the Gaiptek GUI Front-end
+ * "Tablet Manager".
+ * These three products are highly interactive with one another,
+ * so therefore it's easier to document them all as one subsystem.
+ * Please visit the project's "home page", located at,
+ * http://aiptektablet.sourceforge.net.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <linux/jiffies.h>
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/usb/input.h>
+#include <asm/uaccess.h>
+#include <asm/unaligned.h>
+
+/*
+ * Version Information
+ */
+#define DRIVER_VERSION "v2.3 (May 2, 2007)"
+#define DRIVER_AUTHOR "Bryan W. Headley/Chris Atenasio/Cedric Brun/Rene van Paassen"
+#define DRIVER_DESC "Aiptek HyperPen USB Tablet Driver (Linux 2.6.x)"
+
+/*
+ * Aiptek status packet:
+ *
+ * (returned as Report 1 - relative coordinates from mouse and stylus)
+ *
+ * bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0
+ * byte0 0 0 0 0 0 0 0 1
+ * byte1 0 0 0 0 0 BS2 BS Tip
+ * byte2 X7 X6 X5 X4 X3 X2 X1 X0
+ * byte3 Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0
+ *
+ * (returned as Report 2 - absolute coordinates from the stylus)
+ *
+ * bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0
+ * byte0 0 0 0 0 0 0 1 0
+ * byte1 X7 X6 X5 X4 X3 X2 X1 X0
+ * byte2 X15 X14 X13 X12 X11 X10 X9 X8
+ * byte3 Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0
+ * byte4 Y15 Y14 Y13 Y12 Y11 Y10 Y9 Y8
+ * byte5 * * * BS2 BS1 Tip IR DV
+ * byte6 P7 P6 P5 P4 P3 P2 P1 P0
+ * byte7 P15 P14 P13 P12 P11 P10 P9 P8
+ *
+ * (returned as Report 3 - absolute coordinates from the mouse)
+ *
+ * bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0
+ * byte0 0 0 0 0 0 0 1 1
+ * byte1 X7 X6 X5 X4 X3 X2 X1 X0
+ * byte2 X15 X14 X13 X12 X11 X10 X9 X8
+ * byte3 Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0
+ * byte4 Y15 Y14 Y13 Y12 Y11 Y10 Y9 Y8
+ * byte5 * * * BS2 BS1 Tip IR DV
+ * byte6 P7 P6 P5 P4 P3 P2 P1 P0
+ * byte7 P15 P14 P13 P12 P11 P10 P9 P8
+ *
+ * (returned as Report 4 - macrokeys from the stylus)
+ *
+ * bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0
+ * byte0 0 0 0 0 0 1 0 0
+ * byte1 0 0 0 BS2 BS Tip IR DV
+ * byte2 0 0 0 0 0 0 1 0
+ * byte3 0 0 0 K4 K3 K2 K1 K0
+ * byte4 P7 P6 P5 P4 P3 P2 P1 P0
+ * byte5 P15 P14 P13 P12 P11 P10 P9 P8
+ *
+ * (returned as Report 5 - macrokeys from the mouse)
+ *
+ * bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0
+ * byte0 0 0 0 0 0 1 0 1
+ * byte1 0 0 0 BS2 BS Tip IR DV
+ * byte2 0 0 0 0 0 0 1 0
+ * byte3 0 0 0 K4 K3 K2 K1 K0
+ * byte4 P7 P6 P5 P4 P3 P2 P1 P0
+ * byte5 P15 P14 P13 P12 P11 P10 P9 P8
+ *
+ * IR: In Range = Proximity on
+ * DV = Data Valid
+ * BS = Barrel Switch (as in, macro keys)
+ * BS2 also referred to as Tablet Pick
+ *
+ * Command Summary:
+ *
+ * Use report_type CONTROL (3)
+ * Use report_id 2
+ *
+ * Command/Data Description Return Bytes Return Value
+ * 0x10/0x00 SwitchToMouse 0
+ * 0x10/0x01 SwitchToTablet 0
+ * 0x18/0x04 SetResolution 0
+ * 0x12/0xFF AutoGainOn 0
+ * 0x17/0x00 FilterOn 0
+ * 0x01/0x00 GetXExtension 2 MaxX
+ * 0x01/0x01 GetYExtension 2 MaxY
+ * 0x02/0x00 GetModelCode 2 ModelCode = LOBYTE
+ * 0x03/0x00 GetODMCode 2 ODMCode
+ * 0x08/0x00 GetPressureLevels 2 =512
+ * 0x04/0x00 GetFirmwareVersion 2 Firmware Version
+ * 0x11/0x02 EnableMacroKeys 0
+ *
+ * To initialize the tablet:
+ *
+ * (1) Send Resolution500LPI (Command)
+ * (2) Query for Model code (Option Report)
+ * (3) Query for ODM code (Option Report)
+ * (4) Query for firmware (Option Report)
+ * (5) Query for GetXExtension (Option Report)
+ * (6) Query for GetYExtension (Option Report)
+ * (7) Query for GetPressureLevels (Option Report)
+ * (8) SwitchToTablet for Absolute coordinates, or
+ * SwitchToMouse for Relative coordinates (Command)
+ * (9) EnableMacroKeys (Command)
+ * (10) FilterOn (Command)
+ * (11) AutoGainOn (Command)
+ *
+ * (Step 9 can be omitted, but you'll then have no function keys.)
+ */
+
+#define USB_VENDOR_ID_AIPTEK 0x08ca
+#define USB_VENDOR_ID_KYE 0x0458
+#define USB_REQ_GET_REPORT 0x01
+#define USB_REQ_SET_REPORT 0x09
+
+ /* PointerMode codes
+ */
+#define AIPTEK_POINTER_ONLY_MOUSE_MODE 0
+#define AIPTEK_POINTER_ONLY_STYLUS_MODE 1
+#define AIPTEK_POINTER_EITHER_MODE 2
+
+#define AIPTEK_POINTER_ALLOW_MOUSE_MODE(a) \
+ (a == AIPTEK_POINTER_ONLY_MOUSE_MODE || \
+ a == AIPTEK_POINTER_EITHER_MODE)
+#define AIPTEK_POINTER_ALLOW_STYLUS_MODE(a) \
+ (a == AIPTEK_POINTER_ONLY_STYLUS_MODE || \
+ a == AIPTEK_POINTER_EITHER_MODE)
+
+ /* CoordinateMode code
+ */
+#define AIPTEK_COORDINATE_RELATIVE_MODE 0
+#define AIPTEK_COORDINATE_ABSOLUTE_MODE 1
+
+ /* XTilt and YTilt values
+ */
+#define AIPTEK_TILT_MIN (-128)
+#define AIPTEK_TILT_MAX 127
+#define AIPTEK_TILT_DISABLE (-10101)
+
+ /* Wheel values
+ */
+#define AIPTEK_WHEEL_MIN 0
+#define AIPTEK_WHEEL_MAX 1024
+#define AIPTEK_WHEEL_DISABLE (-10101)
+
+ /* ToolCode values, which BTW are 0x140 .. 0x14f
+ * We have things set up such that if the tool button has changed,
+ * the tools get reset.
+ */
+ /* toolMode codes
+ */
+#define AIPTEK_TOOL_BUTTON_PEN_MODE BTN_TOOL_PEN
+#define AIPTEK_TOOL_BUTTON_PENCIL_MODE BTN_TOOL_PENCIL
+#define AIPTEK_TOOL_BUTTON_BRUSH_MODE BTN_TOOL_BRUSH
+#define AIPTEK_TOOL_BUTTON_AIRBRUSH_MODE BTN_TOOL_AIRBRUSH
+#define AIPTEK_TOOL_BUTTON_ERASER_MODE BTN_TOOL_RUBBER
+#define AIPTEK_TOOL_BUTTON_MOUSE_MODE BTN_TOOL_MOUSE
+#define AIPTEK_TOOL_BUTTON_LENS_MODE BTN_TOOL_LENS
+
+ /* Diagnostic message codes
+ */
+#define AIPTEK_DIAGNOSTIC_NA 0
+#define AIPTEK_DIAGNOSTIC_SENDING_RELATIVE_IN_ABSOLUTE 1
+#define AIPTEK_DIAGNOSTIC_SENDING_ABSOLUTE_IN_RELATIVE 2
+#define AIPTEK_DIAGNOSTIC_TOOL_DISALLOWED 3
+
+ /* Time to wait (in ms) to help mask hand jittering
+ * when pressing the stylus buttons.
+ */
+#define AIPTEK_JITTER_DELAY_DEFAULT 50
+
+ /* Time to wait (in ms) in-between sending the tablet
+ * a command and beginning the process of reading the return
+ * sequence from the tablet.
+ */
+#define AIPTEK_PROGRAMMABLE_DELAY_25 25
+#define AIPTEK_PROGRAMMABLE_DELAY_50 50
+#define AIPTEK_PROGRAMMABLE_DELAY_100 100
+#define AIPTEK_PROGRAMMABLE_DELAY_200 200
+#define AIPTEK_PROGRAMMABLE_DELAY_300 300
+#define AIPTEK_PROGRAMMABLE_DELAY_400 400
+#define AIPTEK_PROGRAMMABLE_DELAY_DEFAULT AIPTEK_PROGRAMMABLE_DELAY_400
+
+ /* Mouse button programming
+ */
+#define AIPTEK_MOUSE_LEFT_BUTTON 0x04
+#define AIPTEK_MOUSE_RIGHT_BUTTON 0x08
+#define AIPTEK_MOUSE_MIDDLE_BUTTON 0x10
+
+ /* Stylus button programming
+ */
+#define AIPTEK_STYLUS_LOWER_BUTTON 0x08
+#define AIPTEK_STYLUS_UPPER_BUTTON 0x10
+
+ /* Length of incoming packet from the tablet
+ */
+#define AIPTEK_PACKET_LENGTH 8
+
+ /* We report in EV_MISC both the proximity and
+ * whether the report came from the stylus, tablet mouse
+ * or "unknown" -- Unknown when the tablet is in relative
+ * mode, because we only get report 1's.
+ */
+#define AIPTEK_REPORT_TOOL_UNKNOWN 0x10
+#define AIPTEK_REPORT_TOOL_STYLUS 0x20
+#define AIPTEK_REPORT_TOOL_MOUSE 0x40
+
+static int programmableDelay = AIPTEK_PROGRAMMABLE_DELAY_DEFAULT;
+static int jitterDelay = AIPTEK_JITTER_DELAY_DEFAULT;
+
+struct aiptek_features {
+ int odmCode; /* Tablet manufacturer code */
+ int modelCode; /* Tablet model code (not unique) */
+ int firmwareCode; /* prom/eeprom version */
+ char usbPath[64 + 1]; /* device's physical usb path */
+};
+
+struct aiptek_settings {
+ int pointerMode; /* stylus-, mouse-only or either */
+ int coordinateMode; /* absolute/relative coords */
+ int toolMode; /* pen, pencil, brush, etc. tool */
+ int xTilt; /* synthetic xTilt amount */
+ int yTilt; /* synthetic yTilt amount */
+ int wheel; /* synthetic wheel amount */
+ int stylusButtonUpper; /* stylus upper btn delivers... */
+ int stylusButtonLower; /* stylus lower btn delivers... */
+ int mouseButtonLeft; /* mouse left btn delivers... */
+ int mouseButtonMiddle; /* mouse middle btn delivers... */
+ int mouseButtonRight; /* mouse right btn delivers... */
+ int programmableDelay; /* delay for tablet programming */
+ int jitterDelay; /* delay for hand jittering */
+};
+
+struct aiptek {
+ struct input_dev *inputdev; /* input device struct */
+ struct usb_device *usbdev; /* usb device struct */
+ struct urb *urb; /* urb for incoming reports */
+ dma_addr_t data_dma; /* our dma stuffage */
+ struct aiptek_features features; /* tablet's array of features */
+ struct aiptek_settings curSetting; /* tablet's current programmable */
+ struct aiptek_settings newSetting; /* ... and new param settings */
+ unsigned int ifnum; /* interface number for IO */
+ int diagnostic; /* tablet diagnostic codes */
+ unsigned long eventCount; /* event count */
+ int inDelay; /* jitter: in jitter delay? */
+ unsigned long endDelay; /* jitter: time when delay ends */
+ int previousJitterable; /* jitterable prev value */
+
+ int lastMacro; /* macro key to reset */
+ int previousToolMode; /* pen, pencil, brush, etc. tool */
+ unsigned char *data; /* incoming packet data */
+};
+
+static const int eventTypes[] = {
+ EV_KEY, EV_ABS, EV_REL, EV_MSC,
+};
+
+static const int absEvents[] = {
+ ABS_X, ABS_Y, ABS_PRESSURE, ABS_TILT_X, ABS_TILT_Y,
+ ABS_WHEEL, ABS_MISC,
+};
+
+static const int relEvents[] = {
+ REL_X, REL_Y, REL_WHEEL,
+};
+
+static const int buttonEvents[] = {
+ BTN_LEFT, BTN_RIGHT, BTN_MIDDLE,
+ BTN_TOOL_PEN, BTN_TOOL_RUBBER, BTN_TOOL_PENCIL, BTN_TOOL_AIRBRUSH,
+ BTN_TOOL_BRUSH, BTN_TOOL_MOUSE, BTN_TOOL_LENS, BTN_TOUCH,
+ BTN_STYLUS, BTN_STYLUS2,
+};
+
+/*
+ * Permit easy lookup of keyboard events to send, versus
+ * the bitmap which comes from the tablet. This hides the
+ * issue that the F_keys are not sequentially numbered.
+ */
+static const int macroKeyEvents[] = {
+ KEY_ESC, KEY_F1, KEY_F2, KEY_F3, KEY_F4, KEY_F5,
+ KEY_F6, KEY_F7, KEY_F8, KEY_F9, KEY_F10, KEY_F11,
+ KEY_F12, KEY_F13, KEY_F14, KEY_F15, KEY_F16, KEY_F17,
+ KEY_F18, KEY_F19, KEY_F20, KEY_F21, KEY_F22, KEY_F23,
+ KEY_F24, KEY_STOP, KEY_AGAIN, KEY_PROPS, KEY_UNDO,
+ KEY_FRONT, KEY_COPY, KEY_OPEN, KEY_PASTE, 0
+};
+
+/***********************************************************************
+ * Map values to strings and back. Every map should have the following
+ * as its last element: { NULL, AIPTEK_INVALID_VALUE }.
+ */
+#define AIPTEK_INVALID_VALUE -1
+
+struct aiptek_map {
+ const char *string;
+ int value;
+};
+
+static int map_str_to_val(const struct aiptek_map *map, const char *str, size_t count)
+{
+ const struct aiptek_map *p;
+
+ if (str[count - 1] == '\n')
+ count--;
+
+ for (p = map; p->string; p++)
+ if (!strncmp(str, p->string, count))
+ return p->value;
+
+ return AIPTEK_INVALID_VALUE;
+}
+
+static const char *map_val_to_str(const struct aiptek_map *map, int val)
+{
+ const struct aiptek_map *p;
+
+ for (p = map; p->value != AIPTEK_INVALID_VALUE; p++)
+ if (val == p->value)
+ return p->string;
+
+ return "unknown";
+}
+
+/***********************************************************************
+ * aiptek_irq can receive one of six potential reports.
+ * The documentation for each is in the body of the function.
+ *
+ * The tablet reports on several attributes per invocation of
+ * aiptek_irq. Because the Linux Input Event system allows the
+ * transmission of ONE attribute per input_report_xxx() call,
+ * collation has to be done on the other end to reconstitute
+ * a complete tablet report. Further, the number of Input Event reports
+ * submitted varies, depending on what USB report type, and circumstance.
+ * To deal with this, EV_MSC is used to indicate an 'end-of-report'
+ * message. This has been an undocumented convention understood by the kernel
+ * tablet driver and clients such as gpm and XFree86's tablet drivers.
+ *
+ * Of the information received from the tablet, the one piece I
+ * cannot transmit is the proximity bit (without resorting to an EV_MSC
+ * convention above.) I therefore have taken over REL_MISC and ABS_MISC
+ * (for relative and absolute reports, respectively) for communicating
+ * Proximity. Why two events? I thought it interesting to know if the
+ * Proximity event occurred while the tablet was in absolute or relative
+ * mode.
+ * Update: REL_MISC proved not to be such a good idea. With REL_MISC you
+ * get an event transmitted each time. ABS_MISC works better, since it
+ * can be set and re-set. Thus, only using ABS_MISC from now on.
+ *
+ * Other tablets use the notion of a certain minimum stylus pressure
+ * to infer proximity. While that could have been done, that is yet
+ * another 'by convention' behavior, the documentation for which
+ * would be spread between two (or more) pieces of software.
+ *
+ * EV_MSC usage was terminated for this purpose in Linux 2.5.x, and
+ * replaced with the input_sync() method (which emits EV_SYN.)
+ */
+
+static void aiptek_irq(struct urb *urb)
+{
+ struct aiptek *aiptek = urb->context;
+ unsigned char *data = aiptek->data;
+ struct input_dev *inputdev = aiptek->inputdev;
+ int jitterable = 0;
+ int retval, macro, x, y, z, left, right, middle, p, dv, tip, bs, pck;
+
+ switch (urb->status) {
+ case 0:
+ /* Success */
+ break;
+
+ case -ECONNRESET:
+ case -ENOENT:
+ case -ESHUTDOWN:
+ /* This urb is terminated, clean up */
+ dbg("%s - urb shutting down with status: %d",
+ __func__, urb->status);
+ return;
+
+ default:
+ dbg("%s - nonzero urb status received: %d",
+ __func__, urb->status);
+ goto exit;
+ }
+
+ /* See if we are in a delay loop -- throw out report if true.
+ */
+ if (aiptek->inDelay == 1 && time_after(aiptek->endDelay, jiffies)) {
+ goto exit;
+ }
+
+ aiptek->inDelay = 0;
+ aiptek->eventCount++;
+
+ /* Report 1 delivers relative coordinates with either a stylus
+ * or the mouse. You do not know, however, which input
+ * tool generated the event.
+ */
+ if (data[0] == 1) {
+ if (aiptek->curSetting.coordinateMode ==
+ AIPTEK_COORDINATE_ABSOLUTE_MODE) {
+ aiptek->diagnostic =
+ AIPTEK_DIAGNOSTIC_SENDING_RELATIVE_IN_ABSOLUTE;
+ } else {
+ x = (signed char) data[2];
+ y = (signed char) data[3];
+
+ /* jitterable keeps track of whether any button has been pressed.
+ * We're also using it to remap the physical mouse button mask
+ * to pseudo-settings. (We don't specifically care about it's
+ * value after moving/transposing mouse button bitmasks, except
+ * that a non-zero value indicates that one or more
+ * mouse button was pressed.)
+ */
+ jitterable = data[1] & 0x07;
+
+ left = (data[1] & aiptek->curSetting.mouseButtonLeft >> 2) != 0 ? 1 : 0;
+ right = (data[1] & aiptek->curSetting.mouseButtonRight >> 2) != 0 ? 1 : 0;
+ middle = (data[1] & aiptek->curSetting.mouseButtonMiddle >> 2) != 0 ? 1 : 0;
+
+ input_report_key(inputdev, BTN_LEFT, left);
+ input_report_key(inputdev, BTN_MIDDLE, middle);
+ input_report_key(inputdev, BTN_RIGHT, right);
+
+ input_report_abs(inputdev, ABS_MISC,
+ 1 | AIPTEK_REPORT_TOOL_UNKNOWN);
+ input_report_rel(inputdev, REL_X, x);
+ input_report_rel(inputdev, REL_Y, y);
+
+ /* Wheel support is in the form of a single-event
+ * firing.
+ */
+ if (aiptek->curSetting.wheel != AIPTEK_WHEEL_DISABLE) {
+ input_report_rel(inputdev, REL_WHEEL,
+ aiptek->curSetting.wheel);
+ aiptek->curSetting.wheel = AIPTEK_WHEEL_DISABLE;
+ }
+ if (aiptek->lastMacro != -1) {
+ input_report_key(inputdev,
+ macroKeyEvents[aiptek->lastMacro], 0);
+ aiptek->lastMacro = -1;
+ }
+ input_sync(inputdev);
+ }
+ }
+ /* Report 2 is delivered only by the stylus, and delivers
+ * absolute coordinates.
+ */
+ else if (data[0] == 2) {
+ if (aiptek->curSetting.coordinateMode == AIPTEK_COORDINATE_RELATIVE_MODE) {
+ aiptek->diagnostic = AIPTEK_DIAGNOSTIC_SENDING_ABSOLUTE_IN_RELATIVE;
+ } else if (!AIPTEK_POINTER_ALLOW_STYLUS_MODE
+ (aiptek->curSetting.pointerMode)) {
+ aiptek->diagnostic = AIPTEK_DIAGNOSTIC_TOOL_DISALLOWED;
+ } else {
+ x = get_unaligned_le16(data + 1);
+ y = get_unaligned_le16(data + 3);
+ z = get_unaligned_le16(data + 6);
+
+ dv = (data[5] & 0x01) != 0 ? 1 : 0;
+ p = (data[5] & 0x02) != 0 ? 1 : 0;
+ tip = (data[5] & 0x04) != 0 ? 1 : 0;
+
+ /* Use jitterable to re-arrange button masks
+ */
+ jitterable = data[5] & 0x18;
+
+ bs = (data[5] & aiptek->curSetting.stylusButtonLower) != 0 ? 1 : 0;
+ pck = (data[5] & aiptek->curSetting.stylusButtonUpper) != 0 ? 1 : 0;
+
+ /* dv indicates 'data valid' (e.g., the tablet is in sync
+ * and has delivered a "correct" report) We will ignore
+ * all 'bad' reports...
+ */
+ if (dv != 0) {
+ /* If the selected tool changed, reset the old
+ * tool key, and set the new one.
+ */
+ if (aiptek->previousToolMode !=
+ aiptek->curSetting.toolMode) {
+ input_report_key(inputdev,
+ aiptek->previousToolMode, 0);
+ input_report_key(inputdev,
+ aiptek->curSetting.toolMode,
+ 1);
+ aiptek->previousToolMode =
+ aiptek->curSetting.toolMode;
+ }
+
+ if (p != 0) {
+ input_report_abs(inputdev, ABS_X, x);
+ input_report_abs(inputdev, ABS_Y, y);
+ input_report_abs(inputdev, ABS_PRESSURE, z);
+
+ input_report_key(inputdev, BTN_TOUCH, tip);
+ input_report_key(inputdev, BTN_STYLUS, bs);
+ input_report_key(inputdev, BTN_STYLUS2, pck);
+
+ if (aiptek->curSetting.xTilt !=
+ AIPTEK_TILT_DISABLE) {
+ input_report_abs(inputdev,
+ ABS_TILT_X,
+ aiptek->curSetting.xTilt);
+ }
+ if (aiptek->curSetting.yTilt != AIPTEK_TILT_DISABLE) {
+ input_report_abs(inputdev,
+ ABS_TILT_Y,
+ aiptek->curSetting.yTilt);
+ }
+
+ /* Wheel support is in the form of a single-event
+ * firing.
+ */
+ if (aiptek->curSetting.wheel !=
+ AIPTEK_WHEEL_DISABLE) {
+ input_report_abs(inputdev,
+ ABS_WHEEL,
+ aiptek->curSetting.wheel);
+ aiptek->curSetting.wheel = AIPTEK_WHEEL_DISABLE;
+ }
+ }
+ input_report_abs(inputdev, ABS_MISC, p | AIPTEK_REPORT_TOOL_STYLUS);
+ if (aiptek->lastMacro != -1) {
+ input_report_key(inputdev,
+ macroKeyEvents[aiptek->lastMacro], 0);
+ aiptek->lastMacro = -1;
+ }
+ input_sync(inputdev);
+ }
+ }
+ }
+ /* Report 3's come from the mouse in absolute mode.
+ */
+ else if (data[0] == 3) {
+ if (aiptek->curSetting.coordinateMode == AIPTEK_COORDINATE_RELATIVE_MODE) {
+ aiptek->diagnostic = AIPTEK_DIAGNOSTIC_SENDING_ABSOLUTE_IN_RELATIVE;
+ } else if (!AIPTEK_POINTER_ALLOW_MOUSE_MODE
+ (aiptek->curSetting.pointerMode)) {
+ aiptek->diagnostic = AIPTEK_DIAGNOSTIC_TOOL_DISALLOWED;
+ } else {
+ x = get_unaligned_le16(data + 1);
+ y = get_unaligned_le16(data + 3);
+
+ jitterable = data[5] & 0x1c;
+
+ dv = (data[5] & 0x01) != 0 ? 1 : 0;
+ p = (data[5] & 0x02) != 0 ? 1 : 0;
+ left = (data[5] & aiptek->curSetting.mouseButtonLeft) != 0 ? 1 : 0;
+ right = (data[5] & aiptek->curSetting.mouseButtonRight) != 0 ? 1 : 0;
+ middle = (data[5] & aiptek->curSetting.mouseButtonMiddle) != 0 ? 1 : 0;
+
+ if (dv != 0) {
+ /* If the selected tool changed, reset the old
+ * tool key, and set the new one.
+ */
+ if (aiptek->previousToolMode !=
+ aiptek->curSetting.toolMode) {
+ input_report_key(inputdev,
+ aiptek->previousToolMode, 0);
+ input_report_key(inputdev,
+ aiptek->curSetting.toolMode,
+ 1);
+ aiptek->previousToolMode =
+ aiptek->curSetting.toolMode;
+ }
+
+ if (p != 0) {
+ input_report_abs(inputdev, ABS_X, x);
+ input_report_abs(inputdev, ABS_Y, y);
+
+ input_report_key(inputdev, BTN_LEFT, left);
+ input_report_key(inputdev, BTN_MIDDLE, middle);
+ input_report_key(inputdev, BTN_RIGHT, right);
+
+ /* Wheel support is in the form of a single-event
+ * firing.
+ */
+ if (aiptek->curSetting.wheel != AIPTEK_WHEEL_DISABLE) {
+ input_report_abs(inputdev,
+ ABS_WHEEL,
+ aiptek->curSetting.wheel);
+ aiptek->curSetting.wheel = AIPTEK_WHEEL_DISABLE;
+ }
+ }
+ input_report_abs(inputdev, ABS_MISC, p | AIPTEK_REPORT_TOOL_MOUSE);
+ if (aiptek->lastMacro != -1) {
+ input_report_key(inputdev,
+ macroKeyEvents[aiptek->lastMacro], 0);
+ aiptek->lastMacro = -1;
+ }
+ input_sync(inputdev);
+ }
+ }
+ }
+ /* Report 4s come from the macro keys when pressed by stylus
+ */
+ else if (data[0] == 4) {
+ jitterable = data[1] & 0x18;
+
+ dv = (data[1] & 0x01) != 0 ? 1 : 0;
+ p = (data[1] & 0x02) != 0 ? 1 : 0;
+ tip = (data[1] & 0x04) != 0 ? 1 : 0;
+ bs = (data[1] & aiptek->curSetting.stylusButtonLower) != 0 ? 1 : 0;
+ pck = (data[1] & aiptek->curSetting.stylusButtonUpper) != 0 ? 1 : 0;
+
+ macro = dv && p && tip && !(data[3] & 1) ? (data[3] >> 1) : -1;
+ z = get_unaligned_le16(data + 4);
+
+ if (dv) {
+ /* If the selected tool changed, reset the old
+ * tool key, and set the new one.
+ */
+ if (aiptek->previousToolMode !=
+ aiptek->curSetting.toolMode) {
+ input_report_key(inputdev,
+ aiptek->previousToolMode, 0);
+ input_report_key(inputdev,
+ aiptek->curSetting.toolMode,
+ 1);
+ aiptek->previousToolMode =
+ aiptek->curSetting.toolMode;
+ }
+ }
+
+ if (aiptek->lastMacro != -1 && aiptek->lastMacro != macro) {
+ input_report_key(inputdev, macroKeyEvents[aiptek->lastMacro], 0);
+ aiptek->lastMacro = -1;
+ }
+
+ if (macro != -1 && macro != aiptek->lastMacro) {
+ input_report_key(inputdev, macroKeyEvents[macro], 1);
+ aiptek->lastMacro = macro;
+ }
+ input_report_abs(inputdev, ABS_MISC,
+ p | AIPTEK_REPORT_TOOL_STYLUS);
+ input_sync(inputdev);
+ }
+ /* Report 5s come from the macro keys when pressed by mouse
+ */
+ else if (data[0] == 5) {
+ jitterable = data[1] & 0x1c;
+
+ dv = (data[1] & 0x01) != 0 ? 1 : 0;
+ p = (data[1] & 0x02) != 0 ? 1 : 0;
+ left = (data[1]& aiptek->curSetting.mouseButtonLeft) != 0 ? 1 : 0;
+ right = (data[1] & aiptek->curSetting.mouseButtonRight) != 0 ? 1 : 0;
+ middle = (data[1] & aiptek->curSetting.mouseButtonMiddle) != 0 ? 1 : 0;
+ macro = dv && p && left && !(data[3] & 1) ? (data[3] >> 1) : 0;
+
+ if (dv) {
+ /* If the selected tool changed, reset the old
+ * tool key, and set the new one.
+ */
+ if (aiptek->previousToolMode !=
+ aiptek->curSetting.toolMode) {
+ input_report_key(inputdev,
+ aiptek->previousToolMode, 0);
+ input_report_key(inputdev,
+ aiptek->curSetting.toolMode, 1);
+ aiptek->previousToolMode = aiptek->curSetting.toolMode;
+ }
+ }
+
+ if (aiptek->lastMacro != -1 && aiptek->lastMacro != macro) {
+ input_report_key(inputdev, macroKeyEvents[aiptek->lastMacro], 0);
+ aiptek->lastMacro = -1;
+ }
+
+ if (macro != -1 && macro != aiptek->lastMacro) {
+ input_report_key(inputdev, macroKeyEvents[macro], 1);
+ aiptek->lastMacro = macro;
+ }
+
+ input_report_abs(inputdev, ABS_MISC,
+ p | AIPTEK_REPORT_TOOL_MOUSE);
+ input_sync(inputdev);
+ }
+ /* We have no idea which tool can generate a report 6. Theoretically,
+ * neither need to, having been given reports 4 & 5 for such use.
+ * However, report 6 is the 'official-looking' report for macroKeys;
+ * reports 4 & 5 supposively are used to support unnamed, unknown
+ * hat switches (which just so happen to be the macroKeys.)
+ */
+ else if (data[0] == 6) {
+ macro = get_unaligned_le16(data + 1);
+ if (macro > 0) {
+ input_report_key(inputdev, macroKeyEvents[macro - 1],
+ 0);
+ }
+ if (macro < 25) {
+ input_report_key(inputdev, macroKeyEvents[macro + 1],
+ 0);
+ }
+
+ /* If the selected tool changed, reset the old
+ tool key, and set the new one.
+ */
+ if (aiptek->previousToolMode !=
+ aiptek->curSetting.toolMode) {
+ input_report_key(inputdev,
+ aiptek->previousToolMode, 0);
+ input_report_key(inputdev,
+ aiptek->curSetting.toolMode,
+ 1);
+ aiptek->previousToolMode =
+ aiptek->curSetting.toolMode;
+ }
+
+ input_report_key(inputdev, macroKeyEvents[macro], 1);
+ input_report_abs(inputdev, ABS_MISC,
+ 1 | AIPTEK_REPORT_TOOL_UNKNOWN);
+ input_sync(inputdev);
+ } else {
+ dbg("Unknown report %d", data[0]);
+ }
+
+ /* Jitter may occur when the user presses a button on the stlyus
+ * or the mouse. What we do to prevent that is wait 'x' milliseconds
+ * following a 'jitterable' event, which should give the hand some time
+ * stabilize itself.
+ *
+ * We just introduced aiptek->previousJitterable to carry forth the
+ * notion that jitter occurs when the button state changes from on to off:
+ * a person drawing, holding a button down is not subject to jittering.
+ * With that in mind, changing from upper button depressed to lower button
+ * WILL transition through a jitter delay.
+ */
+
+ if (aiptek->previousJitterable != jitterable &&
+ aiptek->curSetting.jitterDelay != 0 && aiptek->inDelay != 1) {
+ aiptek->endDelay = jiffies +
+ ((aiptek->curSetting.jitterDelay * HZ) / 1000);
+ aiptek->inDelay = 1;
+ }
+ aiptek->previousJitterable = jitterable;
+
+exit:
+ retval = usb_submit_urb(urb, GFP_ATOMIC);
+ if (retval != 0) {
+ err("%s - usb_submit_urb failed with result %d",
+ __func__, retval);
+ }
+}
+
+/***********************************************************************
+ * These are the USB id's known so far. We do not identify them to
+ * specific Aiptek model numbers, because there has been overlaps,
+ * use, and reuse of id's in existing models. Certain models have
+ * been known to use more than one ID, indicative perhaps of
+ * manufacturing revisions. In any event, we consider these
+ * IDs to not be model-specific nor unique.
+ */
+static const struct usb_device_id aiptek_ids[] = {
+ {USB_DEVICE(USB_VENDOR_ID_AIPTEK, 0x01)},
+ {USB_DEVICE(USB_VENDOR_ID_AIPTEK, 0x10)},
+ {USB_DEVICE(USB_VENDOR_ID_AIPTEK, 0x20)},
+ {USB_DEVICE(USB_VENDOR_ID_AIPTEK, 0x21)},
+ {USB_DEVICE(USB_VENDOR_ID_AIPTEK, 0x22)},
+ {USB_DEVICE(USB_VENDOR_ID_AIPTEK, 0x23)},
+ {USB_DEVICE(USB_VENDOR_ID_AIPTEK, 0x24)},
+ {USB_DEVICE(USB_VENDOR_ID_KYE, 0x5003)},
+ {}
+};
+
+MODULE_DEVICE_TABLE(usb, aiptek_ids);
+
+/***********************************************************************
+ * Open an instance of the tablet driver.
+ */
+static int aiptek_open(struct input_dev *inputdev)
+{
+ struct aiptek *aiptek = input_get_drvdata(inputdev);
+
+ aiptek->urb->dev = aiptek->usbdev;
+ if (usb_submit_urb(aiptek->urb, GFP_KERNEL) != 0)
+ return -EIO;
+
+ return 0;
+}
+
+/***********************************************************************
+ * Close an instance of the tablet driver.
+ */
+static void aiptek_close(struct input_dev *inputdev)
+{
+ struct aiptek *aiptek = input_get_drvdata(inputdev);
+
+ usb_kill_urb(aiptek->urb);
+}
+
+/***********************************************************************
+ * aiptek_set_report and aiptek_get_report() are borrowed from Linux 2.4.x,
+ * where they were known as usb_set_report and usb_get_report.
+ */
+static int
+aiptek_set_report(struct aiptek *aiptek,
+ unsigned char report_type,
+ unsigned char report_id, void *buffer, int size)
+{
+ return usb_control_msg(aiptek->usbdev,
+ usb_sndctrlpipe(aiptek->usbdev, 0),
+ USB_REQ_SET_REPORT,
+ USB_TYPE_CLASS | USB_RECIP_INTERFACE |
+ USB_DIR_OUT, (report_type << 8) + report_id,
+ aiptek->ifnum, buffer, size, 5000);
+}
+
+static int
+aiptek_get_report(struct aiptek *aiptek,
+ unsigned char report_type,
+ unsigned char report_id, void *buffer, int size)
+{
+ return usb_control_msg(aiptek->usbdev,
+ usb_rcvctrlpipe(aiptek->usbdev, 0),
+ USB_REQ_GET_REPORT,
+ USB_TYPE_CLASS | USB_RECIP_INTERFACE |
+ USB_DIR_IN, (report_type << 8) + report_id,
+ aiptek->ifnum, buffer, size, 5000);
+}
+
+/***********************************************************************
+ * Send a command to the tablet.
+ */
+static int
+aiptek_command(struct aiptek *aiptek, unsigned char command, unsigned char data)
+{
+ const int sizeof_buf = 3 * sizeof(u8);
+ int ret;
+ u8 *buf;
+
+ buf = kmalloc(sizeof_buf, GFP_KERNEL);
+ if (!buf)
+ return -ENOMEM;
+
+ buf[0] = 2;
+ buf[1] = command;
+ buf[2] = data;
+
+ if ((ret =
+ aiptek_set_report(aiptek, 3, 2, buf, sizeof_buf)) != sizeof_buf) {
+ dbg("aiptek_program: failed, tried to send: 0x%02x 0x%02x",
+ command, data);
+ }
+ kfree(buf);
+ return ret < 0 ? ret : 0;
+}
+
+/***********************************************************************
+ * Retrieve information from the tablet. Querying info is defined as first
+ * sending the {command,data} sequence as a command, followed by a wait
+ * (aka, "programmaticDelay") and then a "read" request.
+ */
+static int
+aiptek_query(struct aiptek *aiptek, unsigned char command, unsigned char data)
+{
+ const int sizeof_buf = 3 * sizeof(u8);
+ int ret;
+ u8 *buf;
+
+ buf = kmalloc(sizeof_buf, GFP_KERNEL);
+ if (!buf)
+ return -ENOMEM;
+
+ buf[0] = 2;
+ buf[1] = command;
+ buf[2] = data;
+
+ if (aiptek_command(aiptek, command, data) != 0) {
+ kfree(buf);
+ return -EIO;
+ }
+ msleep(aiptek->curSetting.programmableDelay);
+
+ if ((ret =
+ aiptek_get_report(aiptek, 3, 2, buf, sizeof_buf)) != sizeof_buf) {
+ dbg("aiptek_query failed: returned 0x%02x 0x%02x 0x%02x",
+ buf[0], buf[1], buf[2]);
+ ret = -EIO;
+ } else {
+ ret = get_unaligned_le16(buf + 1);
+ }
+ kfree(buf);
+ return ret;
+}
+
+/***********************************************************************
+ * Program the tablet into either absolute or relative mode.
+ * We also get information about the tablet's size.
+ */
+static int aiptek_program_tablet(struct aiptek *aiptek)
+{
+ int ret;
+ /* Execute Resolution500LPI */
+ if ((ret = aiptek_command(aiptek, 0x18, 0x04)) < 0)
+ return ret;
+
+ /* Query getModelCode */
+ if ((ret = aiptek_query(aiptek, 0x02, 0x00)) < 0)
+ return ret;
+ aiptek->features.modelCode = ret & 0xff;
+
+ /* Query getODMCode */
+ if ((ret = aiptek_query(aiptek, 0x03, 0x00)) < 0)
+ return ret;
+ aiptek->features.odmCode = ret;
+
+ /* Query getFirmwareCode */
+ if ((ret = aiptek_query(aiptek, 0x04, 0x00)) < 0)
+ return ret;
+ aiptek->features.firmwareCode = ret;
+
+ /* Query getXextension */
+ if ((ret = aiptek_query(aiptek, 0x01, 0x00)) < 0)
+ return ret;
+ input_set_abs_params(aiptek->inputdev, ABS_X, 0, ret - 1, 0, 0);
+
+ /* Query getYextension */
+ if ((ret = aiptek_query(aiptek, 0x01, 0x01)) < 0)
+ return ret;
+ input_set_abs_params(aiptek->inputdev, ABS_Y, 0, ret - 1, 0, 0);
+
+ /* Query getPressureLevels */
+ if ((ret = aiptek_query(aiptek, 0x08, 0x00)) < 0)
+ return ret;
+ input_set_abs_params(aiptek->inputdev, ABS_PRESSURE, 0, ret - 1, 0, 0);
+
+ /* Depending on whether we are in absolute or relative mode, we will
+ * do a switchToTablet(absolute) or switchToMouse(relative) command.
+ */
+ if (aiptek->curSetting.coordinateMode ==
+ AIPTEK_COORDINATE_ABSOLUTE_MODE) {
+ /* Execute switchToTablet */
+ if ((ret = aiptek_command(aiptek, 0x10, 0x01)) < 0) {
+ return ret;
+ }
+ } else {
+ /* Execute switchToMouse */
+ if ((ret = aiptek_command(aiptek, 0x10, 0x00)) < 0) {
+ return ret;
+ }
+ }
+
+ /* Enable the macro keys */
+ if ((ret = aiptek_command(aiptek, 0x11, 0x02)) < 0)
+ return ret;
+#if 0
+ /* Execute FilterOn */
+ if ((ret = aiptek_command(aiptek, 0x17, 0x00)) < 0)
+ return ret;
+#endif
+
+ /* Execute AutoGainOn */
+ if ((ret = aiptek_command(aiptek, 0x12, 0xff)) < 0)
+ return ret;
+
+ /* Reset the eventCount, so we track events from last (re)programming
+ */
+ aiptek->diagnostic = AIPTEK_DIAGNOSTIC_NA;
+ aiptek->eventCount = 0;
+
+ return 0;
+}
+
+/***********************************************************************
+ * Sysfs functions. Sysfs prefers that individually-tunable parameters
+ * exist in their separate pseudo-files. Summary data that is immutable
+ * may exist in a singular file so long as you don't define a writeable
+ * interface.
+ */
+
+/***********************************************************************
+ * support the 'size' file -- display support
+ */
+static ssize_t show_tabletSize(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct aiptek *aiptek = dev_get_drvdata(dev);
+
+ return snprintf(buf, PAGE_SIZE, "%dx%d\n",
+ input_abs_get_max(aiptek->inputdev, ABS_X) + 1,
+ input_abs_get_max(aiptek->inputdev, ABS_Y) + 1);
+}
+
+/* These structs define the sysfs files, param #1 is the name of the
+ * file, param 2 is the file permissions, param 3 & 4 are to the
+ * output generator and input parser routines. Absence of a routine is
+ * permitted -- it only means can't either 'cat' the file, or send data
+ * to it.
+ */
+static DEVICE_ATTR(size, S_IRUGO, show_tabletSize, NULL);
+
+/***********************************************************************
+ * support routines for the 'pointer_mode' file. Note that this file
+ * both displays current setting and allows reprogramming.
+ */
+static struct aiptek_map pointer_mode_map[] = {
+ { "stylus", AIPTEK_POINTER_ONLY_STYLUS_MODE },
+ { "mouse", AIPTEK_POINTER_ONLY_MOUSE_MODE },
+ { "either", AIPTEK_POINTER_EITHER_MODE },
+ { NULL, AIPTEK_INVALID_VALUE }
+};
+
+static ssize_t show_tabletPointerMode(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct aiptek *aiptek = dev_get_drvdata(dev);
+
+ return snprintf(buf, PAGE_SIZE, "%s\n",
+ map_val_to_str(pointer_mode_map,
+ aiptek->curSetting.pointerMode));
+}
+
+static ssize_t
+store_tabletPointerMode(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
+{
+ struct aiptek *aiptek = dev_get_drvdata(dev);
+ int new_mode = map_str_to_val(pointer_mode_map, buf, count);
+
+ if (new_mode == AIPTEK_INVALID_VALUE)
+ return -EINVAL;
+
+ aiptek->newSetting.pointerMode = new_mode;
+ return count;
+}
+
+static DEVICE_ATTR(pointer_mode,
+ S_IRUGO | S_IWUSR,
+ show_tabletPointerMode, store_tabletPointerMode);
+
+/***********************************************************************
+ * support routines for the 'coordinate_mode' file. Note that this file
+ * both displays current setting and allows reprogramming.
+ */
+
+static struct aiptek_map coordinate_mode_map[] = {
+ { "absolute", AIPTEK_COORDINATE_ABSOLUTE_MODE },
+ { "relative", AIPTEK_COORDINATE_RELATIVE_MODE },
+ { NULL, AIPTEK_INVALID_VALUE }
+};
+
+static ssize_t show_tabletCoordinateMode(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct aiptek *aiptek = dev_get_drvdata(dev);
+
+ return snprintf(buf, PAGE_SIZE, "%s\n",
+ map_val_to_str(coordinate_mode_map,
+ aiptek->curSetting.coordinateMode));
+}
+
+static ssize_t
+store_tabletCoordinateMode(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
+{
+ struct aiptek *aiptek = dev_get_drvdata(dev);
+ int new_mode = map_str_to_val(coordinate_mode_map, buf, count);
+
+ if (new_mode == AIPTEK_INVALID_VALUE)
+ return -EINVAL;
+
+ aiptek->newSetting.coordinateMode = new_mode;
+ return count;
+}
+
+static DEVICE_ATTR(coordinate_mode,
+ S_IRUGO | S_IWUSR,
+ show_tabletCoordinateMode, store_tabletCoordinateMode);
+
+/***********************************************************************
+ * support routines for the 'tool_mode' file. Note that this file
+ * both displays current setting and allows reprogramming.
+ */
+
+static struct aiptek_map tool_mode_map[] = {
+ { "mouse", AIPTEK_TOOL_BUTTON_MOUSE_MODE },
+ { "eraser", AIPTEK_TOOL_BUTTON_ERASER_MODE },
+ { "pencil", AIPTEK_TOOL_BUTTON_PENCIL_MODE },
+ { "pen", AIPTEK_TOOL_BUTTON_PEN_MODE },
+ { "brush", AIPTEK_TOOL_BUTTON_BRUSH_MODE },
+ { "airbrush", AIPTEK_TOOL_BUTTON_AIRBRUSH_MODE },
+ { "lens", AIPTEK_TOOL_BUTTON_LENS_MODE },
+ { NULL, AIPTEK_INVALID_VALUE }
+};
+
+static ssize_t show_tabletToolMode(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct aiptek *aiptek = dev_get_drvdata(dev);
+
+ return snprintf(buf, PAGE_SIZE, "%s\n",
+ map_val_to_str(tool_mode_map,
+ aiptek->curSetting.toolMode));
+}
+
+static ssize_t
+store_tabletToolMode(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
+{
+ struct aiptek *aiptek = dev_get_drvdata(dev);
+ int new_mode = map_str_to_val(tool_mode_map, buf, count);
+
+ if (new_mode == AIPTEK_INVALID_VALUE)
+ return -EINVAL;
+
+ aiptek->newSetting.toolMode = new_mode;
+ return count;
+}
+
+static DEVICE_ATTR(tool_mode,
+ S_IRUGO | S_IWUSR,
+ show_tabletToolMode, store_tabletToolMode);
+
+/***********************************************************************
+ * support routines for the 'xtilt' file. Note that this file
+ * both displays current setting and allows reprogramming.
+ */
+static ssize_t show_tabletXtilt(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct aiptek *aiptek = dev_get_drvdata(dev);
+
+ if (aiptek->curSetting.xTilt == AIPTEK_TILT_DISABLE) {
+ return snprintf(buf, PAGE_SIZE, "disable\n");
+ } else {
+ return snprintf(buf, PAGE_SIZE, "%d\n",
+ aiptek->curSetting.xTilt);
+ }
+}
+
+static ssize_t
+store_tabletXtilt(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
+{
+ struct aiptek *aiptek = dev_get_drvdata(dev);
+ long x;
+
+ if (strict_strtol(buf, 10, &x)) {
+ size_t len = buf[count - 1] == '\n' ? count - 1 : count;
+
+ if (strncmp(buf, "disable", len))
+ return -EINVAL;
+
+ aiptek->newSetting.xTilt = AIPTEK_TILT_DISABLE;
+ } else {
+ if (x < AIPTEK_TILT_MIN || x > AIPTEK_TILT_MAX)
+ return -EINVAL;
+
+ aiptek->newSetting.xTilt = x;
+ }
+
+ return count;
+}
+
+static DEVICE_ATTR(xtilt,
+ S_IRUGO | S_IWUSR, show_tabletXtilt, store_tabletXtilt);
+
+/***********************************************************************
+ * support routines for the 'ytilt' file. Note that this file
+ * both displays current setting and allows reprogramming.
+ */
+static ssize_t show_tabletYtilt(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct aiptek *aiptek = dev_get_drvdata(dev);
+
+ if (aiptek->curSetting.yTilt == AIPTEK_TILT_DISABLE) {
+ return snprintf(buf, PAGE_SIZE, "disable\n");
+ } else {
+ return snprintf(buf, PAGE_SIZE, "%d\n",
+ aiptek->curSetting.yTilt);
+ }
+}
+
+static ssize_t
+store_tabletYtilt(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
+{
+ struct aiptek *aiptek = dev_get_drvdata(dev);
+ long y;
+
+ if (strict_strtol(buf, 10, &y)) {
+ size_t len = buf[count - 1] == '\n' ? count - 1 : count;
+
+ if (strncmp(buf, "disable", len))
+ return -EINVAL;
+
+ aiptek->newSetting.yTilt = AIPTEK_TILT_DISABLE;
+ } else {
+ if (y < AIPTEK_TILT_MIN || y > AIPTEK_TILT_MAX)
+ return -EINVAL;
+
+ aiptek->newSetting.yTilt = y;
+ }
+
+ return count;
+}
+
+static DEVICE_ATTR(ytilt,
+ S_IRUGO | S_IWUSR, show_tabletYtilt, store_tabletYtilt);
+
+/***********************************************************************
+ * support routines for the 'jitter' file. Note that this file
+ * both displays current setting and allows reprogramming.
+ */
+static ssize_t show_tabletJitterDelay(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct aiptek *aiptek = dev_get_drvdata(dev);
+
+ return snprintf(buf, PAGE_SIZE, "%d\n", aiptek->curSetting.jitterDelay);
+}
+
+static ssize_t
+store_tabletJitterDelay(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
+{
+ struct aiptek *aiptek = dev_get_drvdata(dev);
+ long j;
+
+ if (strict_strtol(buf, 10, &j))
+ return -EINVAL;
+
+ aiptek->newSetting.jitterDelay = (int)j;
+ return count;
+}
+
+static DEVICE_ATTR(jitter,
+ S_IRUGO | S_IWUSR,
+ show_tabletJitterDelay, store_tabletJitterDelay);
+
+/***********************************************************************
+ * support routines for the 'delay' file. Note that this file
+ * both displays current setting and allows reprogramming.
+ */
+static ssize_t show_tabletProgrammableDelay(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct aiptek *aiptek = dev_get_drvdata(dev);
+
+ return snprintf(buf, PAGE_SIZE, "%d\n",
+ aiptek->curSetting.programmableDelay);
+}
+
+static ssize_t
+store_tabletProgrammableDelay(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
+{
+ struct aiptek *aiptek = dev_get_drvdata(dev);
+ long d;
+
+ if (strict_strtol(buf, 10, &d))
+ return -EINVAL;
+
+ aiptek->newSetting.programmableDelay = (int)d;
+ return count;
+}
+
+static DEVICE_ATTR(delay,
+ S_IRUGO | S_IWUSR,
+ show_tabletProgrammableDelay, store_tabletProgrammableDelay);
+
+/***********************************************************************
+ * support routines for the 'event_count' file. Note that this file
+ * only displays current setting.
+ */
+static ssize_t show_tabletEventsReceived(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct aiptek *aiptek = dev_get_drvdata(dev);
+
+ return snprintf(buf, PAGE_SIZE, "%ld\n", aiptek->eventCount);
+}
+
+static DEVICE_ATTR(event_count, S_IRUGO, show_tabletEventsReceived, NULL);
+
+/***********************************************************************
+ * support routines for the 'diagnostic' file. Note that this file
+ * only displays current setting.
+ */
+static ssize_t show_tabletDiagnosticMessage(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct aiptek *aiptek = dev_get_drvdata(dev);
+ char *retMsg;
+
+ switch (aiptek->diagnostic) {
+ case AIPTEK_DIAGNOSTIC_NA:
+ retMsg = "no errors\n";
+ break;
+
+ case AIPTEK_DIAGNOSTIC_SENDING_RELATIVE_IN_ABSOLUTE:
+ retMsg = "Error: receiving relative reports\n";
+ break;
+
+ case AIPTEK_DIAGNOSTIC_SENDING_ABSOLUTE_IN_RELATIVE:
+ retMsg = "Error: receiving absolute reports\n";
+ break;
+
+ case AIPTEK_DIAGNOSTIC_TOOL_DISALLOWED:
+ if (aiptek->curSetting.pointerMode ==
+ AIPTEK_POINTER_ONLY_MOUSE_MODE) {
+ retMsg = "Error: receiving stylus reports\n";
+ } else {
+ retMsg = "Error: receiving mouse reports\n";
+ }
+ break;
+
+ default:
+ return 0;
+ }
+ return snprintf(buf, PAGE_SIZE, retMsg);
+}
+
+static DEVICE_ATTR(diagnostic, S_IRUGO, show_tabletDiagnosticMessage, NULL);
+
+/***********************************************************************
+ * support routines for the 'stylus_upper' file. Note that this file
+ * both displays current setting and allows for setting changing.
+ */
+
+static struct aiptek_map stylus_button_map[] = {
+ { "upper", AIPTEK_STYLUS_UPPER_BUTTON },
+ { "lower", AIPTEK_STYLUS_LOWER_BUTTON },
+ { NULL, AIPTEK_INVALID_VALUE }
+};
+
+static ssize_t show_tabletStylusUpper(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct aiptek *aiptek = dev_get_drvdata(dev);
+
+ return snprintf(buf, PAGE_SIZE, "%s\n",
+ map_val_to_str(stylus_button_map,
+ aiptek->curSetting.stylusButtonUpper));
+}
+
+static ssize_t
+store_tabletStylusUpper(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
+{
+ struct aiptek *aiptek = dev_get_drvdata(dev);
+ int new_button = map_str_to_val(stylus_button_map, buf, count);
+
+ if (new_button == AIPTEK_INVALID_VALUE)
+ return -EINVAL;
+
+ aiptek->newSetting.stylusButtonUpper = new_button;
+ return count;
+}
+
+static DEVICE_ATTR(stylus_upper,
+ S_IRUGO | S_IWUSR,
+ show_tabletStylusUpper, store_tabletStylusUpper);
+
+/***********************************************************************
+ * support routines for the 'stylus_lower' file. Note that this file
+ * both displays current setting and allows for setting changing.
+ */
+
+static ssize_t show_tabletStylusLower(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct aiptek *aiptek = dev_get_drvdata(dev);
+
+ return snprintf(buf, PAGE_SIZE, "%s\n",
+ map_val_to_str(stylus_button_map,
+ aiptek->curSetting.stylusButtonLower));
+}
+
+static ssize_t
+store_tabletStylusLower(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
+{
+ struct aiptek *aiptek = dev_get_drvdata(dev);
+ int new_button = map_str_to_val(stylus_button_map, buf, count);
+
+ if (new_button == AIPTEK_INVALID_VALUE)
+ return -EINVAL;
+
+ aiptek->newSetting.stylusButtonLower = new_button;
+ return count;
+}
+
+static DEVICE_ATTR(stylus_lower,
+ S_IRUGO | S_IWUSR,
+ show_tabletStylusLower, store_tabletStylusLower);
+
+/***********************************************************************
+ * support routines for the 'mouse_left' file. Note that this file
+ * both displays current setting and allows for setting changing.
+ */
+
+static struct aiptek_map mouse_button_map[] = {
+ { "left", AIPTEK_MOUSE_LEFT_BUTTON },
+ { "middle", AIPTEK_MOUSE_MIDDLE_BUTTON },
+ { "right", AIPTEK_MOUSE_RIGHT_BUTTON },
+ { NULL, AIPTEK_INVALID_VALUE }
+};
+
+static ssize_t show_tabletMouseLeft(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct aiptek *aiptek = dev_get_drvdata(dev);
+
+ return snprintf(buf, PAGE_SIZE, "%s\n",
+ map_val_to_str(mouse_button_map,
+ aiptek->curSetting.mouseButtonLeft));
+}
+
+static ssize_t
+store_tabletMouseLeft(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
+{
+ struct aiptek *aiptek = dev_get_drvdata(dev);
+ int new_button = map_str_to_val(mouse_button_map, buf, count);
+
+ if (new_button == AIPTEK_INVALID_VALUE)
+ return -EINVAL;
+
+ aiptek->newSetting.mouseButtonLeft = new_button;
+ return count;
+}
+
+static DEVICE_ATTR(mouse_left,
+ S_IRUGO | S_IWUSR,
+ show_tabletMouseLeft, store_tabletMouseLeft);
+
+/***********************************************************************
+ * support routines for the 'mouse_middle' file. Note that this file
+ * both displays current setting and allows for setting changing.
+ */
+static ssize_t show_tabletMouseMiddle(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct aiptek *aiptek = dev_get_drvdata(dev);
+
+ return snprintf(buf, PAGE_SIZE, "%s\n",
+ map_val_to_str(mouse_button_map,
+ aiptek->curSetting.mouseButtonMiddle));
+}
+
+static ssize_t
+store_tabletMouseMiddle(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
+{
+ struct aiptek *aiptek = dev_get_drvdata(dev);
+ int new_button = map_str_to_val(mouse_button_map, buf, count);
+
+ if (new_button == AIPTEK_INVALID_VALUE)
+ return -EINVAL;
+
+ aiptek->newSetting.mouseButtonMiddle = new_button;
+ return count;
+}
+
+static DEVICE_ATTR(mouse_middle,
+ S_IRUGO | S_IWUSR,
+ show_tabletMouseMiddle, store_tabletMouseMiddle);
+
+/***********************************************************************
+ * support routines for the 'mouse_right' file. Note that this file
+ * both displays current setting and allows for setting changing.
+ */
+static ssize_t show_tabletMouseRight(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct aiptek *aiptek = dev_get_drvdata(dev);
+
+ return snprintf(buf, PAGE_SIZE, "%s\n",
+ map_val_to_str(mouse_button_map,
+ aiptek->curSetting.mouseButtonRight));
+}
+
+static ssize_t
+store_tabletMouseRight(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
+{
+ struct aiptek *aiptek = dev_get_drvdata(dev);
+ int new_button = map_str_to_val(mouse_button_map, buf, count);
+
+ if (new_button == AIPTEK_INVALID_VALUE)
+ return -EINVAL;
+
+ aiptek->newSetting.mouseButtonRight = new_button;
+ return count;
+}
+
+static DEVICE_ATTR(mouse_right,
+ S_IRUGO | S_IWUSR,
+ show_tabletMouseRight, store_tabletMouseRight);
+
+/***********************************************************************
+ * support routines for the 'wheel' file. Note that this file
+ * both displays current setting and allows for setting changing.
+ */
+static ssize_t show_tabletWheel(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct aiptek *aiptek = dev_get_drvdata(dev);
+
+ if (aiptek->curSetting.wheel == AIPTEK_WHEEL_DISABLE) {
+ return snprintf(buf, PAGE_SIZE, "disable\n");
+ } else {
+ return snprintf(buf, PAGE_SIZE, "%d\n",
+ aiptek->curSetting.wheel);
+ }
+}
+
+static ssize_t
+store_tabletWheel(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
+{
+ struct aiptek *aiptek = dev_get_drvdata(dev);
+ long w;
+
+ if (strict_strtol(buf, 10, &w)) return -EINVAL;
+
+ aiptek->newSetting.wheel = (int)w;
+ return count;
+}
+
+static DEVICE_ATTR(wheel,
+ S_IRUGO | S_IWUSR, show_tabletWheel, store_tabletWheel);
+
+/***********************************************************************
+ * support routines for the 'execute' file. Note that this file
+ * both displays current setting and allows for setting changing.
+ */
+static ssize_t show_tabletExecute(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ /* There is nothing useful to display, so a one-line manual
+ * is in order...
+ */
+ return snprintf(buf, PAGE_SIZE,
+ "Write anything to this file to program your tablet.\n");
+}
+
+static ssize_t
+store_tabletExecute(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
+{
+ struct aiptek *aiptek = dev_get_drvdata(dev);
+
+ /* We do not care what you write to this file. Merely the action
+ * of writing to this file triggers a tablet reprogramming.
+ */
+ memcpy(&aiptek->curSetting, &aiptek->newSetting,
+ sizeof(struct aiptek_settings));
+
+ if (aiptek_program_tablet(aiptek) < 0)
+ return -EIO;
+
+ return count;
+}
+
+static DEVICE_ATTR(execute,
+ S_IRUGO | S_IWUSR, show_tabletExecute, store_tabletExecute);
+
+/***********************************************************************
+ * support routines for the 'odm_code' file. Note that this file
+ * only displays current setting.
+ */
+static ssize_t show_tabletODMCode(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct aiptek *aiptek = dev_get_drvdata(dev);
+
+ return snprintf(buf, PAGE_SIZE, "0x%04x\n", aiptek->features.odmCode);
+}
+
+static DEVICE_ATTR(odm_code, S_IRUGO, show_tabletODMCode, NULL);
+
+/***********************************************************************
+ * support routines for the 'model_code' file. Note that this file
+ * only displays current setting.
+ */
+static ssize_t show_tabletModelCode(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct aiptek *aiptek = dev_get_drvdata(dev);
+
+ return snprintf(buf, PAGE_SIZE, "0x%04x\n", aiptek->features.modelCode);
+}
+
+static DEVICE_ATTR(model_code, S_IRUGO, show_tabletModelCode, NULL);
+
+/***********************************************************************
+ * support routines for the 'firmware_code' file. Note that this file
+ * only displays current setting.
+ */
+static ssize_t show_firmwareCode(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct aiptek *aiptek = dev_get_drvdata(dev);
+
+ return snprintf(buf, PAGE_SIZE, "%04x\n",
+ aiptek->features.firmwareCode);
+}
+
+static DEVICE_ATTR(firmware_code, S_IRUGO, show_firmwareCode, NULL);
+
+static struct attribute *aiptek_attributes[] = {
+ &dev_attr_size.attr,
+ &dev_attr_pointer_mode.attr,
+ &dev_attr_coordinate_mode.attr,
+ &dev_attr_tool_mode.attr,
+ &dev_attr_xtilt.attr,
+ &dev_attr_ytilt.attr,
+ &dev_attr_jitter.attr,
+ &dev_attr_delay.attr,
+ &dev_attr_event_count.attr,
+ &dev_attr_diagnostic.attr,
+ &dev_attr_odm_code.attr,
+ &dev_attr_model_code.attr,
+ &dev_attr_firmware_code.attr,
+ &dev_attr_stylus_lower.attr,
+ &dev_attr_stylus_upper.attr,
+ &dev_attr_mouse_left.attr,
+ &dev_attr_mouse_middle.attr,
+ &dev_attr_mouse_right.attr,
+ &dev_attr_wheel.attr,
+ &dev_attr_execute.attr,
+ NULL
+};
+
+static struct attribute_group aiptek_attribute_group = {
+ .attrs = aiptek_attributes,
+};
+
+/***********************************************************************
+ * This routine is called when a tablet has been identified. It basically
+ * sets up the tablet and the driver's internal structures.
+ */
+static int
+aiptek_probe(struct usb_interface *intf, const struct usb_device_id *id)
+{
+ struct usb_device *usbdev = interface_to_usbdev(intf);
+ struct usb_endpoint_descriptor *endpoint;
+ struct aiptek *aiptek;
+ struct input_dev *inputdev;
+ int i;
+ int speeds[] = { 0,
+ AIPTEK_PROGRAMMABLE_DELAY_50,
+ AIPTEK_PROGRAMMABLE_DELAY_400,
+ AIPTEK_PROGRAMMABLE_DELAY_25,
+ AIPTEK_PROGRAMMABLE_DELAY_100,
+ AIPTEK_PROGRAMMABLE_DELAY_200,
+ AIPTEK_PROGRAMMABLE_DELAY_300
+ };
+ int err = -ENOMEM;
+
+ /* programmableDelay is where the command-line specified
+ * delay is kept. We make it the first element of speeds[],
+ * so therefore, your override speed is tried first, then the
+ * remainder. Note that the default value of 400ms will be tried
+ * if you do not specify any command line parameter.
+ */
+ speeds[0] = programmableDelay;
+
+ aiptek = kzalloc(sizeof(struct aiptek), GFP_KERNEL);
+ inputdev = input_allocate_device();
+ if (!aiptek || !inputdev) {
+ dev_warn(&intf->dev,
+ "cannot allocate memory or input device\n");
+ goto fail1;
+ }
+
+ aiptek->data = usb_alloc_coherent(usbdev, AIPTEK_PACKET_LENGTH,
+ GFP_ATOMIC, &aiptek->data_dma);
+ if (!aiptek->data) {
+ dev_warn(&intf->dev, "cannot allocate usb buffer\n");
+ goto fail1;
+ }
+
+ aiptek->urb = usb_alloc_urb(0, GFP_KERNEL);
+ if (!aiptek->urb) {
+ dev_warn(&intf->dev, "cannot allocate urb\n");
+ goto fail2;
+ }
+
+ aiptek->inputdev = inputdev;
+ aiptek->usbdev = usbdev;
+ aiptek->ifnum = intf->altsetting[0].desc.bInterfaceNumber;
+ aiptek->inDelay = 0;
+ aiptek->endDelay = 0;
+ aiptek->previousJitterable = 0;
+ aiptek->lastMacro = -1;
+
+ /* Set up the curSettings struct. Said struct contains the current
+ * programmable parameters. The newSetting struct contains changes
+ * the user makes to the settings via the sysfs interface. Those
+ * changes are not "committed" to curSettings until the user
+ * writes to the sysfs/.../execute file.
+ */
+ aiptek->curSetting.pointerMode = AIPTEK_POINTER_EITHER_MODE;
+ aiptek->curSetting.coordinateMode = AIPTEK_COORDINATE_ABSOLUTE_MODE;
+ aiptek->curSetting.toolMode = AIPTEK_TOOL_BUTTON_PEN_MODE;
+ aiptek->curSetting.xTilt = AIPTEK_TILT_DISABLE;
+ aiptek->curSetting.yTilt = AIPTEK_TILT_DISABLE;
+ aiptek->curSetting.mouseButtonLeft = AIPTEK_MOUSE_LEFT_BUTTON;
+ aiptek->curSetting.mouseButtonMiddle = AIPTEK_MOUSE_MIDDLE_BUTTON;
+ aiptek->curSetting.mouseButtonRight = AIPTEK_MOUSE_RIGHT_BUTTON;
+ aiptek->curSetting.stylusButtonUpper = AIPTEK_STYLUS_UPPER_BUTTON;
+ aiptek->curSetting.stylusButtonLower = AIPTEK_STYLUS_LOWER_BUTTON;
+ aiptek->curSetting.jitterDelay = jitterDelay;
+ aiptek->curSetting.programmableDelay = programmableDelay;
+
+ /* Both structs should have equivalent settings
+ */
+ aiptek->newSetting = aiptek->curSetting;
+
+ /* Determine the usb devices' physical path.
+ * Asketh not why we always pretend we're using "../input0",
+ * but I suspect this will have to be refactored one
+ * day if a single USB device can be a keyboard & a mouse
+ * & a tablet, and the inputX number actually will tell
+ * us something...
+ */
+ usb_make_path(usbdev, aiptek->features.usbPath,
+ sizeof(aiptek->features.usbPath));
+ strlcat(aiptek->features.usbPath, "/input0",
+ sizeof(aiptek->features.usbPath));
+
+ /* Set up client data, pointers to open and close routines
+ * for the input device.
+ */
+ inputdev->name = "Aiptek";
+ inputdev->phys = aiptek->features.usbPath;
+ usb_to_input_id(usbdev, &inputdev->id);
+ inputdev->dev.parent = &intf->dev;
+
+ input_set_drvdata(inputdev, aiptek);
+
+ inputdev->open = aiptek_open;
+ inputdev->close = aiptek_close;
+
+ /* Now program the capacities of the tablet, in terms of being
+ * an input device.
+ */
+ for (i = 0; i < ARRAY_SIZE(eventTypes); ++i)
+ __set_bit(eventTypes[i], inputdev->evbit);
+
+ for (i = 0; i < ARRAY_SIZE(absEvents); ++i)
+ __set_bit(absEvents[i], inputdev->absbit);
+
+ for (i = 0; i < ARRAY_SIZE(relEvents); ++i)
+ __set_bit(relEvents[i], inputdev->relbit);
+
+ __set_bit(MSC_SERIAL, inputdev->mscbit);
+
+ /* Set up key and button codes */
+ for (i = 0; i < ARRAY_SIZE(buttonEvents); ++i)
+ __set_bit(buttonEvents[i], inputdev->keybit);
+
+ for (i = 0; i < ARRAY_SIZE(macroKeyEvents); ++i)
+ __set_bit(macroKeyEvents[i], inputdev->keybit);
+
+ /*
+ * Program the input device coordinate capacities. We do not yet
+ * know what maximum X, Y, and Z values are, so we're putting fake
+ * values in. Later, we'll ask the tablet to put in the correct
+ * values.
+ */
+ input_set_abs_params(inputdev, ABS_X, 0, 2999, 0, 0);
+ input_set_abs_params(inputdev, ABS_Y, 0, 2249, 0, 0);
+ input_set_abs_params(inputdev, ABS_PRESSURE, 0, 511, 0, 0);
+ input_set_abs_params(inputdev, ABS_TILT_X, AIPTEK_TILT_MIN, AIPTEK_TILT_MAX, 0, 0);
+ input_set_abs_params(inputdev, ABS_TILT_Y, AIPTEK_TILT_MIN, AIPTEK_TILT_MAX, 0, 0);
+ input_set_abs_params(inputdev, ABS_WHEEL, AIPTEK_WHEEL_MIN, AIPTEK_WHEEL_MAX - 1, 0, 0);
+
+ endpoint = &intf->altsetting[0].endpoint[0].desc;
+
+ /* Go set up our URB, which is called when the tablet receives
+ * input.
+ */
+ usb_fill_int_urb(aiptek->urb,
+ aiptek->usbdev,
+ usb_rcvintpipe(aiptek->usbdev,
+ endpoint->bEndpointAddress),
+ aiptek->data, 8, aiptek_irq, aiptek,
+ endpoint->bInterval);
+
+ aiptek->urb->transfer_dma = aiptek->data_dma;
+ aiptek->urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
+
+ /* Program the tablet. This sets the tablet up in the mode
+ * specified in newSetting, and also queries the tablet's
+ * physical capacities.
+ *
+ * Sanity check: if a tablet doesn't like the slow programmatic
+ * delay, we often get sizes of 0x0. Let's use that as an indicator
+ * to try faster delays, up to 25 ms. If that logic fails, well, you'll
+ * have to explain to us how your tablet thinks it's 0x0, and yet that's
+ * not an error :-)
+ */
+
+ for (i = 0; i < ARRAY_SIZE(speeds); ++i) {
+ aiptek->curSetting.programmableDelay = speeds[i];
+ (void)aiptek_program_tablet(aiptek);
+ if (input_abs_get_max(aiptek->inputdev, ABS_X) > 0) {
+ dev_info(&intf->dev,
+ "Aiptek using %d ms programming speed\n",
+ aiptek->curSetting.programmableDelay);
+ break;
+ }
+ }
+
+ /* Murphy says that some day someone will have a tablet that fails the
+ above test. That's you, Frederic Rodrigo */
+ if (i == ARRAY_SIZE(speeds)) {
+ dev_info(&intf->dev,
+ "Aiptek tried all speeds, no sane response\n");
+ goto fail2;
+ }
+
+ /* Associate this driver's struct with the usb interface.
+ */
+ usb_set_intfdata(intf, aiptek);
+
+ /* Set up the sysfs files
+ */
+ err = sysfs_create_group(&intf->dev.kobj, &aiptek_attribute_group);
+ if (err) {
+ dev_warn(&intf->dev, "cannot create sysfs group err: %d\n",
+ err);
+ goto fail3;
+ }
+
+ /* Register the tablet as an Input Device
+ */
+ err = input_register_device(aiptek->inputdev);
+ if (err) {
+ dev_warn(&intf->dev,
+ "input_register_device returned err: %d\n", err);
+ goto fail4;
+ }
+ return 0;
+
+ fail4: sysfs_remove_group(&intf->dev.kobj, &aiptek_attribute_group);
+ fail3: usb_free_urb(aiptek->urb);
+ fail2: usb_free_coherent(usbdev, AIPTEK_PACKET_LENGTH, aiptek->data,
+ aiptek->data_dma);
+ fail1: usb_set_intfdata(intf, NULL);
+ input_free_device(inputdev);
+ kfree(aiptek);
+ return err;
+}
+
+/***********************************************************************
+ * Deal with tablet disconnecting from the system.
+ */
+static void aiptek_disconnect(struct usb_interface *intf)
+{
+ struct aiptek *aiptek = usb_get_intfdata(intf);
+
+ /* Disassociate driver's struct with usb interface
+ */
+ usb_set_intfdata(intf, NULL);
+ if (aiptek != NULL) {
+ /* Free & unhook everything from the system.
+ */
+ usb_kill_urb(aiptek->urb);
+ input_unregister_device(aiptek->inputdev);
+ sysfs_remove_group(&intf->dev.kobj, &aiptek_attribute_group);
+ usb_free_urb(aiptek->urb);
+ usb_free_coherent(interface_to_usbdev(intf),
+ AIPTEK_PACKET_LENGTH,
+ aiptek->data, aiptek->data_dma);
+ kfree(aiptek);
+ }
+}
+
+static struct usb_driver aiptek_driver = {
+ .name = "aiptek",
+ .probe = aiptek_probe,
+ .disconnect = aiptek_disconnect,
+ .id_table = aiptek_ids,
+};
+
+static int __init aiptek_init(void)
+{
+ int result = usb_register(&aiptek_driver);
+ if (result == 0) {
+ printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":"
+ DRIVER_DESC "\n");
+ printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_AUTHOR "\n");
+ }
+ return result;
+}
+
+static void __exit aiptek_exit(void)
+{
+ usb_deregister(&aiptek_driver);
+}
+
+MODULE_AUTHOR(DRIVER_AUTHOR);
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+module_param(programmableDelay, int, 0);
+MODULE_PARM_DESC(programmableDelay, "delay used during tablet programming");
+module_param(jitterDelay, int, 0);
+MODULE_PARM_DESC(jitterDelay, "stylus/mouse settlement delay");
+
+module_init(aiptek_init);
+module_exit(aiptek_exit);
diff --git a/drivers/input/tablet/gtco.c b/drivers/input/tablet/gtco.c
new file mode 100644
index 0000000..8ea6afe
--- /dev/null
+++ b/drivers/input/tablet/gtco.c
@@ -0,0 +1,1054 @@
+/* -*- linux-c -*-
+
+GTCO digitizer USB driver
+
+Use the err() and dbg() macros from usb.h for system logging
+
+TO CHECK: Is pressure done right on report 5?
+
+Copyright (C) 2006 GTCO CalComp
+
+This program is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public License
+as published by the Free Software Foundation; version 2
+of the License.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+
+Permission to use, copy, modify, distribute, and sell this software and its
+documentation for any purpose is hereby granted without fee, provided that
+the above copyright notice appear in all copies and that both that
+copyright notice and this permission notice appear in supporting
+documentation, and that the name of GTCO-CalComp not be used in advertising
+or publicity pertaining to distribution of the software without specific,
+written prior permission. GTCO-CalComp makes no representations about the
+suitability of this software for any purpose. It is provided "as is"
+without express or implied warranty.
+
+GTCO-CALCOMP DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+EVENT SHALL GTCO-CALCOMP BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+TORTIOUS ACTIONS, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+PERFORMANCE OF THIS SOFTWARE.
+
+GTCO CalComp, Inc.
+7125 Riverwood Drive
+Columbia, MD 21046
+
+Jeremy Roberson jroberson@gtcocalcomp.com
+Scott Hill shill@gtcocalcomp.com
+*/
+
+
+
+/*#define DEBUG*/
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/input.h>
+#include <linux/usb.h>
+#include <asm/uaccess.h>
+#include <asm/unaligned.h>
+#include <asm/byteorder.h>
+
+
+#include <linux/usb/input.h>
+
+/* Version with a Major number of 2 is for kernel inclusion only. */
+#define GTCO_VERSION "2.00.0006"
+
+
+/* MACROS */
+
+#define VENDOR_ID_GTCO 0x078C
+#define PID_400 0x400
+#define PID_401 0x401
+#define PID_1000 0x1000
+#define PID_1001 0x1001
+#define PID_1002 0x1002
+
+/* Max size of a single report */
+#define REPORT_MAX_SIZE 10
+
+
+/* Bitmask whether pen is in range */
+#define MASK_INRANGE 0x20
+#define MASK_BUTTON 0x01F
+
+#define PATHLENGTH 64
+
+/* DATA STRUCTURES */
+
+/* Device table */
+static const struct usb_device_id gtco_usbid_table[] = {
+ { USB_DEVICE(VENDOR_ID_GTCO, PID_400) },
+ { USB_DEVICE(VENDOR_ID_GTCO, PID_401) },
+ { USB_DEVICE(VENDOR_ID_GTCO, PID_1000) },
+ { USB_DEVICE(VENDOR_ID_GTCO, PID_1001) },
+ { USB_DEVICE(VENDOR_ID_GTCO, PID_1002) },
+ { }
+};
+MODULE_DEVICE_TABLE (usb, gtco_usbid_table);
+
+
+/* Structure to hold all of our device specific stuff */
+struct gtco {
+
+ struct input_dev *inputdevice; /* input device struct pointer */
+ struct usb_device *usbdev; /* the usb device for this device */
+ struct urb *urbinfo; /* urb for incoming reports */
+ dma_addr_t buf_dma; /* dma addr of the data buffer*/
+ unsigned char * buffer; /* databuffer for reports */
+
+ char usbpath[PATHLENGTH];
+ int openCount;
+
+ /* Information pulled from Report Descriptor */
+ u32 usage;
+ u32 min_X;
+ u32 max_X;
+ u32 min_Y;
+ u32 max_Y;
+ s8 mintilt_X;
+ s8 maxtilt_X;
+ s8 mintilt_Y;
+ s8 maxtilt_Y;
+ u32 maxpressure;
+ u32 minpressure;
+};
+
+
+
+/* Code for parsing the HID REPORT DESCRIPTOR */
+
+/* From HID1.11 spec */
+struct hid_descriptor
+{
+ struct usb_descriptor_header header;
+ __le16 bcdHID;
+ u8 bCountryCode;
+ u8 bNumDescriptors;
+ u8 bDescriptorType;
+ __le16 wDescriptorLength;
+} __attribute__ ((packed));
+
+
+#define HID_DESCRIPTOR_SIZE 9
+#define HID_DEVICE_TYPE 33
+#define REPORT_DEVICE_TYPE 34
+
+
+#define PREF_TAG(x) ((x)>>4)
+#define PREF_TYPE(x) ((x>>2)&0x03)
+#define PREF_SIZE(x) ((x)&0x03)
+
+#define TYPE_MAIN 0
+#define TYPE_GLOBAL 1
+#define TYPE_LOCAL 2
+#define TYPE_RESERVED 3
+
+#define TAG_MAIN_INPUT 0x8
+#define TAG_MAIN_OUTPUT 0x9
+#define TAG_MAIN_FEATURE 0xB
+#define TAG_MAIN_COL_START 0xA
+#define TAG_MAIN_COL_END 0xC
+
+#define TAG_GLOB_USAGE 0
+#define TAG_GLOB_LOG_MIN 1
+#define TAG_GLOB_LOG_MAX 2
+#define TAG_GLOB_PHYS_MIN 3
+#define TAG_GLOB_PHYS_MAX 4
+#define TAG_GLOB_UNIT_EXP 5
+#define TAG_GLOB_UNIT 6
+#define TAG_GLOB_REPORT_SZ 7
+#define TAG_GLOB_REPORT_ID 8
+#define TAG_GLOB_REPORT_CNT 9
+#define TAG_GLOB_PUSH 10
+#define TAG_GLOB_POP 11
+
+#define TAG_GLOB_MAX 12
+
+#define DIGITIZER_USAGE_TIP_PRESSURE 0x30
+#define DIGITIZER_USAGE_TILT_X 0x3D
+#define DIGITIZER_USAGE_TILT_Y 0x3E
+
+
+/*
+ * This is an abbreviated parser for the HID Report Descriptor. We
+ * know what devices we are talking to, so this is by no means meant
+ * to be generic. We can make some safe assumptions:
+ *
+ * - We know there are no LONG tags, all short
+ * - We know that we have no MAIN Feature and MAIN Output items
+ * - We know what the IRQ reports are supposed to look like.
+ *
+ * The main purpose of this is to use the HID report desc to figure
+ * out the mins and maxs of the fields in the IRQ reports. The IRQ
+ * reports for 400/401 change slightly if the max X is bigger than 64K.
+ *
+ */
+static void parse_hid_report_descriptor(struct gtco *device, char * report,
+ int length)
+{
+ int x, i = 0;
+
+ /* Tag primitive vars */
+ __u8 prefix;
+ __u8 size;
+ __u8 tag;
+ __u8 type;
+ __u8 data = 0;
+ __u16 data16 = 0;
+ __u32 data32 = 0;
+
+ /* For parsing logic */
+ int inputnum = 0;
+ __u32 usage = 0;
+
+ /* Global Values, indexed by TAG */
+ __u32 globalval[TAG_GLOB_MAX];
+ __u32 oldval[TAG_GLOB_MAX];
+
+ /* Debug stuff */
+ char maintype = 'x';
+ char globtype[12];
+ int indent = 0;
+ char indentstr[10] = "";
+
+
+ dbg("======>>>>>>PARSE<<<<<<======");
+
+ /* Walk this report and pull out the info we need */
+ while (i < length) {
+ prefix = report[i];
+
+ /* Skip over prefix */
+ i++;
+
+ /* Determine data size and save the data in the proper variable */
+ size = PREF_SIZE(prefix);
+ switch (size) {
+ case 1:
+ data = report[i];
+ break;
+ case 2:
+ data16 = get_unaligned_le16(&report[i]);
+ break;
+ case 3:
+ size = 4;
+ data32 = get_unaligned_le32(&report[i]);
+ break;
+ }
+
+ /* Skip size of data */
+ i += size;
+
+ /* What we do depends on the tag type */
+ tag = PREF_TAG(prefix);
+ type = PREF_TYPE(prefix);
+ switch (type) {
+ case TYPE_MAIN:
+ strcpy(globtype, "");
+ switch (tag) {
+
+ case TAG_MAIN_INPUT:
+ /*
+ * The INPUT MAIN tag signifies this is
+ * information from a report. We need to
+ * figure out what it is and store the
+ * min/max values
+ */
+
+ maintype = 'I';
+ if (data == 2)
+ strcpy(globtype, "Variable");
+ else if (data == 3)
+ strcpy(globtype, "Var|Const");
+
+ dbg("::::: Saving Report: %d input #%d Max: 0x%X(%d) Min:0x%X(%d) of %d bits",
+ globalval[TAG_GLOB_REPORT_ID], inputnum,
+ globalval[TAG_GLOB_LOG_MAX], globalval[TAG_GLOB_LOG_MAX],
+ globalval[TAG_GLOB_LOG_MIN], globalval[TAG_GLOB_LOG_MIN],
+ globalval[TAG_GLOB_REPORT_SZ] * globalval[TAG_GLOB_REPORT_CNT]);
+
+
+ /*
+ We can assume that the first two input items
+ are always the X and Y coordinates. After
+ that, we look for everything else by
+ local usage value
+ */
+ switch (inputnum) {
+ case 0: /* X coord */
+ dbg("GER: X Usage: 0x%x", usage);
+ if (device->max_X == 0) {
+ device->max_X = globalval[TAG_GLOB_LOG_MAX];
+ device->min_X = globalval[TAG_GLOB_LOG_MIN];
+ }
+ break;
+
+ case 1: /* Y coord */
+ dbg("GER: Y Usage: 0x%x", usage);
+ if (device->max_Y == 0) {
+ device->max_Y = globalval[TAG_GLOB_LOG_MAX];
+ device->min_Y = globalval[TAG_GLOB_LOG_MIN];
+ }
+ break;
+
+ default:
+ /* Tilt X */
+ if (usage == DIGITIZER_USAGE_TILT_X) {
+ if (device->maxtilt_X == 0) {
+ device->maxtilt_X = globalval[TAG_GLOB_LOG_MAX];
+ device->mintilt_X = globalval[TAG_GLOB_LOG_MIN];
+ }
+ }
+
+ /* Tilt Y */
+ if (usage == DIGITIZER_USAGE_TILT_Y) {
+ if (device->maxtilt_Y == 0) {
+ device->maxtilt_Y = globalval[TAG_GLOB_LOG_MAX];
+ device->mintilt_Y = globalval[TAG_GLOB_LOG_MIN];
+ }
+ }
+
+ /* Pressure */
+ if (usage == DIGITIZER_USAGE_TIP_PRESSURE) {
+ if (device->maxpressure == 0) {
+ device->maxpressure = globalval[TAG_GLOB_LOG_MAX];
+ device->minpressure = globalval[TAG_GLOB_LOG_MIN];
+ }
+ }
+
+ break;
+ }
+
+ inputnum++;
+ break;
+
+ case TAG_MAIN_OUTPUT:
+ maintype = 'O';
+ break;
+
+ case TAG_MAIN_FEATURE:
+ maintype = 'F';
+ break;
+
+ case TAG_MAIN_COL_START:
+ maintype = 'S';
+
+ if (data == 0) {
+ dbg("======>>>>>> Physical");
+ strcpy(globtype, "Physical");
+ } else
+ dbg("======>>>>>>");
+
+ /* Indent the debug output */
+ indent++;
+ for (x = 0; x < indent; x++)
+ indentstr[x] = '-';
+ indentstr[x] = 0;
+
+ /* Save global tags */
+ for (x = 0; x < TAG_GLOB_MAX; x++)
+ oldval[x] = globalval[x];
+
+ break;
+
+ case TAG_MAIN_COL_END:
+ dbg("<<<<<<======");
+ maintype = 'E';
+ indent--;
+ for (x = 0; x < indent; x++)
+ indentstr[x] = '-';
+ indentstr[x] = 0;
+
+ /* Copy global tags back */
+ for (x = 0; x < TAG_GLOB_MAX; x++)
+ globalval[x] = oldval[x];
+
+ break;
+ }
+
+ switch (size) {
+ case 1:
+ dbg("%sMAINTAG:(%d) %c SIZE: %d Data: %s 0x%x",
+ indentstr, tag, maintype, size, globtype, data);
+ break;
+
+ case 2:
+ dbg("%sMAINTAG:(%d) %c SIZE: %d Data: %s 0x%x",
+ indentstr, tag, maintype, size, globtype, data16);
+ break;
+
+ case 4:
+ dbg("%sMAINTAG:(%d) %c SIZE: %d Data: %s 0x%x",
+ indentstr, tag, maintype, size, globtype, data32);
+ break;
+ }
+ break;
+
+ case TYPE_GLOBAL:
+ switch (tag) {
+ case TAG_GLOB_USAGE:
+ /*
+ * First time we hit the global usage tag,
+ * it should tell us the type of device
+ */
+ if (device->usage == 0)
+ device->usage = data;
+
+ strcpy(globtype, "USAGE");
+ break;
+
+ case TAG_GLOB_LOG_MIN:
+ strcpy(globtype, "LOG_MIN");
+ break;
+
+ case TAG_GLOB_LOG_MAX:
+ strcpy(globtype, "LOG_MAX");
+ break;
+
+ case TAG_GLOB_PHYS_MIN:
+ strcpy(globtype, "PHYS_MIN");
+ break;
+
+ case TAG_GLOB_PHYS_MAX:
+ strcpy(globtype, "PHYS_MAX");
+ break;
+
+ case TAG_GLOB_UNIT_EXP:
+ strcpy(globtype, "EXP");
+ break;
+
+ case TAG_GLOB_UNIT:
+ strcpy(globtype, "UNIT");
+ break;
+
+ case TAG_GLOB_REPORT_SZ:
+ strcpy(globtype, "REPORT_SZ");
+ break;
+
+ case TAG_GLOB_REPORT_ID:
+ strcpy(globtype, "REPORT_ID");
+ /* New report, restart numbering */
+ inputnum = 0;
+ break;
+
+ case TAG_GLOB_REPORT_CNT:
+ strcpy(globtype, "REPORT_CNT");
+ break;
+
+ case TAG_GLOB_PUSH:
+ strcpy(globtype, "PUSH");
+ break;
+
+ case TAG_GLOB_POP:
+ strcpy(globtype, "POP");
+ break;
+ }
+
+ /* Check to make sure we have a good tag number
+ so we don't overflow array */
+ if (tag < TAG_GLOB_MAX) {
+ switch (size) {
+ case 1:
+ dbg("%sGLOBALTAG:%s(%d) SIZE: %d Data: 0x%x",
+ indentstr, globtype, tag, size, data);
+ globalval[tag] = data;
+ break;
+
+ case 2:
+ dbg("%sGLOBALTAG:%s(%d) SIZE: %d Data: 0x%x",
+ indentstr, globtype, tag, size, data16);
+ globalval[tag] = data16;
+ break;
+
+ case 4:
+ dbg("%sGLOBALTAG:%s(%d) SIZE: %d Data: 0x%x",
+ indentstr, globtype, tag, size, data32);
+ globalval[tag] = data32;
+ break;
+ }
+ } else {
+ dbg("%sGLOBALTAG: ILLEGAL TAG:%d SIZE: %d ",
+ indentstr, tag, size);
+ }
+ break;
+
+ case TYPE_LOCAL:
+ switch (tag) {
+ case TAG_GLOB_USAGE:
+ strcpy(globtype, "USAGE");
+ /* Always 1 byte */
+ usage = data;
+ break;
+
+ case TAG_GLOB_LOG_MIN:
+ strcpy(globtype, "MIN");
+ break;
+
+ case TAG_GLOB_LOG_MAX:
+ strcpy(globtype, "MAX");
+ break;
+
+ default:
+ strcpy(globtype, "UNKNOWN");
+ break;
+ }
+
+ switch (size) {
+ case 1:
+ dbg("%sLOCALTAG:(%d) %s SIZE: %d Data: 0x%x",
+ indentstr, tag, globtype, size, data);
+ break;
+
+ case 2:
+ dbg("%sLOCALTAG:(%d) %s SIZE: %d Data: 0x%x",
+ indentstr, tag, globtype, size, data16);
+ break;
+
+ case 4:
+ dbg("%sLOCALTAG:(%d) %s SIZE: %d Data: 0x%x",
+ indentstr, tag, globtype, size, data32);
+ break;
+ }
+
+ break;
+ }
+ }
+}
+
+/* INPUT DRIVER Routines */
+
+/*
+ * Called when opening the input device. This will submit the URB to
+ * the usb system so we start getting reports
+ */
+static int gtco_input_open(struct input_dev *inputdev)
+{
+ struct gtco *device = input_get_drvdata(inputdev);
+
+ device->urbinfo->dev = device->usbdev;
+ if (usb_submit_urb(device->urbinfo, GFP_KERNEL))
+ return -EIO;
+
+ return 0;
+}
+
+/*
+ * Called when closing the input device. This will unlink the URB
+ */
+static void gtco_input_close(struct input_dev *inputdev)
+{
+ struct gtco *device = input_get_drvdata(inputdev);
+
+ usb_kill_urb(device->urbinfo);
+}
+
+
+/*
+ * Setup input device capabilities. Tell the input system what this
+ * device is capable of generating.
+ *
+ * This information is based on what is read from the HID report and
+ * placed in the struct gtco structure
+ *
+ */
+static void gtco_setup_caps(struct input_dev *inputdev)
+{
+ struct gtco *device = input_get_drvdata(inputdev);
+
+ /* Which events */
+ inputdev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS) |
+ BIT_MASK(EV_MSC);
+
+ /* Misc event menu block */
+ inputdev->mscbit[0] = BIT_MASK(MSC_SCAN) | BIT_MASK(MSC_SERIAL) |
+ BIT_MASK(MSC_RAW);
+
+ /* Absolute values based on HID report info */
+ input_set_abs_params(inputdev, ABS_X, device->min_X, device->max_X,
+ 0, 0);
+ input_set_abs_params(inputdev, ABS_Y, device->min_Y, device->max_Y,
+ 0, 0);
+
+ /* Proximity */
+ input_set_abs_params(inputdev, ABS_DISTANCE, 0, 1, 0, 0);
+
+ /* Tilt & pressure */
+ input_set_abs_params(inputdev, ABS_TILT_X, device->mintilt_X,
+ device->maxtilt_X, 0, 0);
+ input_set_abs_params(inputdev, ABS_TILT_Y, device->mintilt_Y,
+ device->maxtilt_Y, 0, 0);
+ input_set_abs_params(inputdev, ABS_PRESSURE, device->minpressure,
+ device->maxpressure, 0, 0);
+
+ /* Transducer */
+ input_set_abs_params(inputdev, ABS_MISC, 0, 0xFF, 0, 0);
+}
+
+/* USB Routines */
+
+/*
+ * URB callback routine. Called when we get IRQ reports from the
+ * digitizer.
+ *
+ * This bridges the USB and input device worlds. It generates events
+ * on the input device based on the USB reports.
+ */
+static void gtco_urb_callback(struct urb *urbinfo)
+{
+ struct gtco *device = urbinfo->context;
+ struct input_dev *inputdev;
+ int rc;
+ u32 val = 0;
+ s8 valsigned = 0;
+ char le_buffer[2];
+
+ inputdev = device->inputdevice;
+
+ /* Was callback OK? */
+ if (urbinfo->status == -ECONNRESET ||
+ urbinfo->status == -ENOENT ||
+ urbinfo->status == -ESHUTDOWN) {
+
+ /* Shutdown is occurring. Return and don't queue up any more */
+ return;
+ }
+
+ if (urbinfo->status != 0) {
+ /*
+ * Some unknown error. Hopefully temporary. Just go and
+ * requeue an URB
+ */
+ goto resubmit;
+ }
+
+ /*
+ * Good URB, now process
+ */
+
+ /* PID dependent when we interpret the report */
+ if (inputdev->id.product == PID_1000 ||
+ inputdev->id.product == PID_1001 ||
+ inputdev->id.product == PID_1002) {
+
+ /*
+ * Switch on the report ID
+ * Conveniently, the reports have more information, the higher
+ * the report number. We can just fall through the case
+ * statements if we start with the highest number report
+ */
+ switch (device->buffer[0]) {
+ case 5:
+ /* Pressure is 9 bits */
+ val = ((u16)(device->buffer[8]) << 1);
+ val |= (u16)(device->buffer[7] >> 7);
+ input_report_abs(inputdev, ABS_PRESSURE,
+ device->buffer[8]);
+
+ /* Mask out the Y tilt value used for pressure */
+ device->buffer[7] = (u8)((device->buffer[7]) & 0x7F);
+
+ /* Fall thru */
+ case 4:
+ /* Tilt */
+
+ /* Sign extend these 7 bit numbers. */
+ if (device->buffer[6] & 0x40)
+ device->buffer[6] |= 0x80;
+
+ if (device->buffer[7] & 0x40)
+ device->buffer[7] |= 0x80;
+
+
+ valsigned = (device->buffer[6]);
+ input_report_abs(inputdev, ABS_TILT_X, (s32)valsigned);
+
+ valsigned = (device->buffer[7]);
+ input_report_abs(inputdev, ABS_TILT_Y, (s32)valsigned);
+
+ /* Fall thru */
+ case 2:
+ case 3:
+ /* Convert buttons, only 5 bits possible */
+ val = (device->buffer[5]) & MASK_BUTTON;
+
+ /* We don't apply any meaning to the bitmask,
+ just report */
+ input_event(inputdev, EV_MSC, MSC_SERIAL, val);
+
+ /* Fall thru */
+ case 1:
+ /* All reports have X and Y coords in the same place */
+ val = get_unaligned_le16(&device->buffer[1]);
+ input_report_abs(inputdev, ABS_X, val);
+
+ val = get_unaligned_le16(&device->buffer[3]);
+ input_report_abs(inputdev, ABS_Y, val);
+
+ /* Ditto for proximity bit */
+ val = device->buffer[5] & MASK_INRANGE ? 1 : 0;
+ input_report_abs(inputdev, ABS_DISTANCE, val);
+
+ /* Report 1 is an exception to how we handle buttons */
+ /* Buttons are an index, not a bitmask */
+ if (device->buffer[0] == 1) {
+
+ /*
+ * Convert buttons, 5 bit index
+ * Report value of index set as one,
+ * the rest as 0
+ */
+ val = device->buffer[5] & MASK_BUTTON;
+ dbg("======>>>>>>REPORT 1: val 0x%X(%d)",
+ val, val);
+
+ /*
+ * We don't apply any meaning to the button
+ * index, just report it
+ */
+ input_event(inputdev, EV_MSC, MSC_SERIAL, val);
+ }
+ break;
+
+ case 7:
+ /* Menu blocks */
+ input_event(inputdev, EV_MSC, MSC_SCAN,
+ device->buffer[1]);
+ break;
+ }
+ }
+
+ /* Other pid class */
+ if (inputdev->id.product == PID_400 ||
+ inputdev->id.product == PID_401) {
+
+ /* Report 2 */
+ if (device->buffer[0] == 2) {
+ /* Menu blocks */
+ input_event(inputdev, EV_MSC, MSC_SCAN, device->buffer[1]);
+ }
+
+ /* Report 1 */
+ if (device->buffer[0] == 1) {
+ char buttonbyte;
+
+ /* IF X max > 64K, we still a bit from the y report */
+ if (device->max_X > 0x10000) {
+
+ val = (u16)(((u16)(device->buffer[2] << 8)) | (u8)device->buffer[1]);
+ val |= (u32)(((u8)device->buffer[3] & 0x1) << 16);
+
+ input_report_abs(inputdev, ABS_X, val);
+
+ le_buffer[0] = (u8)((u8)(device->buffer[3]) >> 1);
+ le_buffer[0] |= (u8)((device->buffer[3] & 0x1) << 7);
+
+ le_buffer[1] = (u8)(device->buffer[4] >> 1);
+ le_buffer[1] |= (u8)((device->buffer[5] & 0x1) << 7);
+
+ val = get_unaligned_le16(le_buffer);
+ input_report_abs(inputdev, ABS_Y, val);
+
+ /*
+ * Shift the button byte right by one to
+ * make it look like the standard report
+ */
+ buttonbyte = device->buffer[5] >> 1;
+ } else {
+
+ val = get_unaligned_le16(&device->buffer[1]);
+ input_report_abs(inputdev, ABS_X, val);
+
+ val = get_unaligned_le16(&device->buffer[3]);
+ input_report_abs(inputdev, ABS_Y, val);
+
+ buttonbyte = device->buffer[5];
+ }
+
+ /* BUTTONS and PROXIMITY */
+ val = buttonbyte & MASK_INRANGE ? 1 : 0;
+ input_report_abs(inputdev, ABS_DISTANCE, val);
+
+ /* Convert buttons, only 4 bits possible */
+ val = buttonbyte & 0x0F;
+#ifdef USE_BUTTONS
+ for (i = 0; i < 5; i++)
+ input_report_key(inputdev, BTN_DIGI + i, val & (1 << i));
+#else
+ /* We don't apply any meaning to the bitmask, just report */
+ input_event(inputdev, EV_MSC, MSC_SERIAL, val);
+#endif
+
+ /* TRANSDUCER */
+ input_report_abs(inputdev, ABS_MISC, device->buffer[6]);
+ }
+ }
+
+ /* Everybody gets report ID's */
+ input_event(inputdev, EV_MSC, MSC_RAW, device->buffer[0]);
+
+ /* Sync it up */
+ input_sync(inputdev);
+
+ resubmit:
+ rc = usb_submit_urb(urbinfo, GFP_ATOMIC);
+ if (rc != 0)
+ err("usb_submit_urb failed rc=0x%x", rc);
+}
+
+/*
+ * The probe routine. This is called when the kernel find the matching USB
+ * vendor/product. We do the following:
+ *
+ * - Allocate mem for a local structure to manage the device
+ * - Request a HID Report Descriptor from the device and parse it to
+ * find out the device parameters
+ * - Create an input device and assign it attributes
+ * - Allocate an URB so the device can talk to us when the input
+ * queue is open
+ */
+static int gtco_probe(struct usb_interface *usbinterface,
+ const struct usb_device_id *id)
+{
+
+ struct gtco *gtco;
+ struct input_dev *input_dev;
+ struct hid_descriptor *hid_desc;
+ char *report;
+ int result = 0, retry;
+ int error;
+ struct usb_endpoint_descriptor *endpoint;
+
+ /* Allocate memory for device structure */
+ gtco = kzalloc(sizeof(struct gtco), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!gtco || !input_dev) {
+ err("No more memory");
+ error = -ENOMEM;
+ goto err_free_devs;
+ }
+
+ /* Set pointer to the input device */
+ gtco->inputdevice = input_dev;
+
+ /* Save interface information */
+ gtco->usbdev = usb_get_dev(interface_to_usbdev(usbinterface));
+
+ /* Allocate some data for incoming reports */
+ gtco->buffer = usb_alloc_coherent(gtco->usbdev, REPORT_MAX_SIZE,
+ GFP_KERNEL, >co->buf_dma);
+ if (!gtco->buffer) {
+ err("No more memory for us buffers");
+ error = -ENOMEM;
+ goto err_free_devs;
+ }
+
+ /* Allocate URB for reports */
+ gtco->urbinfo = usb_alloc_urb(0, GFP_KERNEL);
+ if (!gtco->urbinfo) {
+ err("Failed to allocate URB");
+ error = -ENOMEM;
+ goto err_free_buf;
+ }
+
+ /*
+ * The endpoint is always altsetting 0, we know this since we know
+ * this device only has one interrupt endpoint
+ */
+ endpoint = &usbinterface->altsetting[0].endpoint[0].desc;
+
+ /* Some debug */
+ dbg("gtco # interfaces: %d", usbinterface->num_altsetting);
+ dbg("num endpoints: %d", usbinterface->cur_altsetting->desc.bNumEndpoints);
+ dbg("interface class: %d", usbinterface->cur_altsetting->desc.bInterfaceClass);
+ dbg("endpoint: attribute:0x%x type:0x%x", endpoint->bmAttributes, endpoint->bDescriptorType);
+ if (usb_endpoint_xfer_int(endpoint))
+ dbg("endpoint: we have interrupt endpoint\n");
+
+ dbg("endpoint extra len:%d ", usbinterface->altsetting[0].extralen);
+
+ /*
+ * Find the HID descriptor so we can find out the size of the
+ * HID report descriptor
+ */
+ if (usb_get_extra_descriptor(usbinterface->cur_altsetting,
+ HID_DEVICE_TYPE, &hid_desc) != 0){
+ err("Can't retrieve exta USB descriptor to get hid report descriptor length");
+ error = -EIO;
+ goto err_free_urb;
+ }
+
+ dbg("Extra descriptor success: type:%d len:%d",
+ hid_desc->bDescriptorType, hid_desc->wDescriptorLength);
+
+ report = kzalloc(le16_to_cpu(hid_desc->wDescriptorLength), GFP_KERNEL);
+ if (!report) {
+ err("No more memory for report");
+ error = -ENOMEM;
+ goto err_free_urb;
+ }
+
+ /* Couple of tries to get reply */
+ for (retry = 0; retry < 3; retry++) {
+ result = usb_control_msg(gtco->usbdev,
+ usb_rcvctrlpipe(gtco->usbdev, 0),
+ USB_REQ_GET_DESCRIPTOR,
+ USB_RECIP_INTERFACE | USB_DIR_IN,
+ REPORT_DEVICE_TYPE << 8,
+ 0, /* interface */
+ report,
+ le16_to_cpu(hid_desc->wDescriptorLength),
+ 5000); /* 5 secs */
+
+ dbg("usb_control_msg result: %d", result);
+ if (result == le16_to_cpu(hid_desc->wDescriptorLength)) {
+ parse_hid_report_descriptor(gtco, report, result);
+ break;
+ }
+ }
+
+ kfree(report);
+
+ /* If we didn't get the report, fail */
+ if (result != le16_to_cpu(hid_desc->wDescriptorLength)) {
+ err("Failed to get HID Report Descriptor of size: %d",
+ hid_desc->wDescriptorLength);
+ error = -EIO;
+ goto err_free_urb;
+ }
+
+ /* Create a device file node */
+ usb_make_path(gtco->usbdev, gtco->usbpath, sizeof(gtco->usbpath));
+ strlcat(gtco->usbpath, "/input0", sizeof(gtco->usbpath));
+
+ /* Set Input device functions */
+ input_dev->open = gtco_input_open;
+ input_dev->close = gtco_input_close;
+
+ /* Set input device information */
+ input_dev->name = "GTCO_CalComp";
+ input_dev->phys = gtco->usbpath;
+
+ input_set_drvdata(input_dev, gtco);
+
+ /* Now set up all the input device capabilities */
+ gtco_setup_caps(input_dev);
+
+ /* Set input device required ID information */
+ usb_to_input_id(gtco->usbdev, &input_dev->id);
+ input_dev->dev.parent = &usbinterface->dev;
+
+ /* Setup the URB, it will be posted later on open of input device */
+ endpoint = &usbinterface->altsetting[0].endpoint[0].desc;
+
+ usb_fill_int_urb(gtco->urbinfo,
+ gtco->usbdev,
+ usb_rcvintpipe(gtco->usbdev,
+ endpoint->bEndpointAddress),
+ gtco->buffer,
+ REPORT_MAX_SIZE,
+ gtco_urb_callback,
+ gtco,
+ endpoint->bInterval);
+
+ gtco->urbinfo->transfer_dma = gtco->buf_dma;
+ gtco->urbinfo->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
+
+ /* Save gtco pointer in USB interface gtco */
+ usb_set_intfdata(usbinterface, gtco);
+
+ /* All done, now register the input device */
+ error = input_register_device(input_dev);
+ if (error)
+ goto err_free_urb;
+
+ return 0;
+
+ err_free_urb:
+ usb_free_urb(gtco->urbinfo);
+ err_free_buf:
+ usb_free_coherent(gtco->usbdev, REPORT_MAX_SIZE,
+ gtco->buffer, gtco->buf_dma);
+ err_free_devs:
+ input_free_device(input_dev);
+ kfree(gtco);
+ return error;
+}
+
+/*
+ * This function is a standard USB function called when the USB device
+ * is disconnected. We will get rid of the URV, de-register the input
+ * device, and free up allocated memory
+ */
+static void gtco_disconnect(struct usb_interface *interface)
+{
+ /* Grab private device ptr */
+ struct gtco *gtco = usb_get_intfdata(interface);
+
+ /* Now reverse all the registration stuff */
+ if (gtco) {
+ input_unregister_device(gtco->inputdevice);
+ usb_kill_urb(gtco->urbinfo);
+ usb_free_urb(gtco->urbinfo);
+ usb_free_coherent(gtco->usbdev, REPORT_MAX_SIZE,
+ gtco->buffer, gtco->buf_dma);
+ kfree(gtco);
+ }
+
+ dev_info(&interface->dev, "gtco driver disconnected\n");
+}
+
+/* STANDARD MODULE LOAD ROUTINES */
+
+static struct usb_driver gtco_driverinfo_table = {
+ .name = "gtco",
+ .id_table = gtco_usbid_table,
+ .probe = gtco_probe,
+ .disconnect = gtco_disconnect,
+};
+
+/*
+ * Register this module with the USB subsystem
+ */
+static int __init gtco_init(void)
+{
+ int error;
+
+ error = usb_register(>co_driverinfo_table);
+ if (error) {
+ err("usb_register() failed rc=0x%x", error);
+ return error;
+ }
+
+ printk("GTCO usb driver version: %s", GTCO_VERSION);
+ return 0;
+}
+
+/*
+ * Deregister this module with the USB subsystem
+ */
+static void __exit gtco_exit(void)
+{
+ usb_deregister(>co_driverinfo_table);
+}
+
+module_init(gtco_init);
+module_exit(gtco_exit);
+
+MODULE_DESCRIPTION("GTCO digitizer USB driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/input/tablet/hanwang.c b/drivers/input/tablet/hanwang.c
new file mode 100644
index 0000000..6504b62
--- /dev/null
+++ b/drivers/input/tablet/hanwang.c
@@ -0,0 +1,446 @@
+/*
+ * USB Hanwang tablet support
+ *
+ * Copyright (c) 2010 Xing Wei <weixing@hanwang.com.cn>
+ *
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/usb/input.h>
+
+#define DRIVER_AUTHOR "Xing Wei <weixing@hanwang.com.cn>"
+#define DRIVER_DESC "USB Hanwang tablet driver"
+#define DRIVER_LICENSE "GPL"
+
+MODULE_AUTHOR(DRIVER_AUTHOR);
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE(DRIVER_LICENSE);
+
+#define USB_VENDOR_ID_HANWANG 0x0b57
+#define HANWANG_TABLET_INT_CLASS 0x0003
+#define HANWANG_TABLET_INT_SUB_CLASS 0x0001
+#define HANWANG_TABLET_INT_PROTOCOL 0x0002
+
+#define ART_MASTER_PKGLEN_MAX 10
+
+/* device IDs */
+#define STYLUS_DEVICE_ID 0x02
+#define TOUCH_DEVICE_ID 0x03
+#define CURSOR_DEVICE_ID 0x06
+#define ERASER_DEVICE_ID 0x0A
+#define PAD_DEVICE_ID 0x0F
+
+/* match vendor and interface info */
+#define HANWANG_TABLET_DEVICE(vend, cl, sc, pr) \
+ .match_flags = USB_DEVICE_ID_MATCH_VENDOR \
+ | USB_DEVICE_ID_MATCH_INT_INFO, \
+ .idVendor = (vend), \
+ .bInterfaceClass = (cl), \
+ .bInterfaceSubClass = (sc), \
+ .bInterfaceProtocol = (pr)
+
+enum hanwang_tablet_type {
+ HANWANG_ART_MASTER_III,
+ HANWANG_ART_MASTER_HD,
+};
+
+struct hanwang {
+ unsigned char *data;
+ dma_addr_t data_dma;
+ struct input_dev *dev;
+ struct usb_device *usbdev;
+ struct urb *irq;
+ const struct hanwang_features *features;
+ unsigned int current_tool;
+ unsigned int current_id;
+ char name[64];
+ char phys[32];
+};
+
+struct hanwang_features {
+ unsigned short pid;
+ char *name;
+ enum hanwang_tablet_type type;
+ int pkg_len;
+ int max_x;
+ int max_y;
+ int max_tilt_x;
+ int max_tilt_y;
+ int max_pressure;
+};
+
+static const struct hanwang_features features_array[] = {
+ { 0x8528, "Hanwang Art Master III 0906", HANWANG_ART_MASTER_III,
+ ART_MASTER_PKGLEN_MAX, 0x5757, 0x3692, 0x3f, 0x7f, 2048 },
+ { 0x8529, "Hanwang Art Master III 0604", HANWANG_ART_MASTER_III,
+ ART_MASTER_PKGLEN_MAX, 0x3d84, 0x2672, 0x3f, 0x7f, 2048 },
+ { 0x852a, "Hanwang Art Master III 1308", HANWANG_ART_MASTER_III,
+ ART_MASTER_PKGLEN_MAX, 0x7f00, 0x4f60, 0x3f, 0x7f, 2048 },
+ { 0x8401, "Hanwang Art Master HD 5012", HANWANG_ART_MASTER_HD,
+ ART_MASTER_PKGLEN_MAX, 0x678e, 0x4150, 0x3f, 0x7f, 1024 },
+};
+
+static const int hw_eventtypes[] = {
+ EV_KEY, EV_ABS, EV_MSC,
+};
+
+static const int hw_absevents[] = {
+ ABS_X, ABS_Y, ABS_TILT_X, ABS_TILT_Y, ABS_WHEEL,
+ ABS_RX, ABS_RY, ABS_PRESSURE, ABS_MISC,
+};
+
+static const int hw_btnevents[] = {
+ BTN_STYLUS, BTN_STYLUS2, BTN_TOOL_PEN, BTN_TOOL_RUBBER,
+ BTN_TOOL_MOUSE, BTN_TOOL_FINGER,
+ BTN_0, BTN_1, BTN_2, BTN_3, BTN_4, BTN_5, BTN_6, BTN_7, BTN_8,
+};
+
+static const int hw_mscevents[] = {
+ MSC_SERIAL,
+};
+
+static void hanwang_parse_packet(struct hanwang *hanwang)
+{
+ unsigned char *data = hanwang->data;
+ struct input_dev *input_dev = hanwang->dev;
+ struct usb_device *dev = hanwang->usbdev;
+ enum hanwang_tablet_type type = hanwang->features->type;
+ int i;
+ u16 x, y, p;
+
+ switch (data[0]) {
+ case 0x02: /* data packet */
+ switch (data[1]) {
+ case 0x80: /* tool prox out */
+ hanwang->current_id = 0;
+ input_report_key(input_dev, hanwang->current_tool, 0);
+ break;
+
+ case 0xc2: /* first time tool prox in */
+ switch (data[3] & 0xf0) {
+ case 0x20: /* art_master III */
+ case 0x30: /* art_master_HD */
+ hanwang->current_id = STYLUS_DEVICE_ID;
+ hanwang->current_tool = BTN_TOOL_PEN;
+ input_report_key(input_dev, BTN_TOOL_PEN, 1);
+ break;
+ case 0xa0: /* art_master III */
+ case 0xb0: /* art_master_HD */
+ hanwang->current_id = ERASER_DEVICE_ID;
+ hanwang->current_tool = BTN_TOOL_RUBBER;
+ input_report_key(input_dev, BTN_TOOL_RUBBER, 1);
+ break;
+ default:
+ hanwang->current_id = 0;
+ dev_dbg(&dev->dev,
+ "unknown tablet tool %02x ", data[0]);
+ break;
+ }
+ break;
+
+ default: /* tool data packet */
+ x = (data[2] << 8) | data[3];
+ y = (data[4] << 8) | data[5];
+
+ switch (type) {
+ case HANWANG_ART_MASTER_III:
+ p = (data[6] << 3) |
+ ((data[7] & 0xc0) >> 5) |
+ (data[1] & 0x01);
+ break;
+
+ case HANWANG_ART_MASTER_HD:
+ p = (data[7] >> 6) | (data[6] << 2);
+ break;
+
+ default:
+ p = 0;
+ break;
+ }
+
+ input_report_abs(input_dev, ABS_X,
+ le16_to_cpup((__le16 *)&x));
+ input_report_abs(input_dev, ABS_Y,
+ le16_to_cpup((__le16 *)&y));
+ input_report_abs(input_dev, ABS_PRESSURE,
+ le16_to_cpup((__le16 *)&p));
+ input_report_abs(input_dev, ABS_TILT_X, data[7] & 0x3f);
+ input_report_abs(input_dev, ABS_TILT_Y, data[8] & 0x7f);
+ input_report_key(input_dev, BTN_STYLUS, data[1] & 0x02);
+ input_report_key(input_dev, BTN_STYLUS2, data[1] & 0x04);
+ break;
+ }
+ input_report_abs(input_dev, ABS_MISC, hanwang->current_id);
+ input_event(input_dev, EV_MSC, MSC_SERIAL,
+ hanwang->features->pid);
+ break;
+
+ case 0x0c:
+ /* roll wheel */
+ hanwang->current_id = PAD_DEVICE_ID;
+
+ switch (type) {
+ case HANWANG_ART_MASTER_III:
+ input_report_key(input_dev, BTN_TOOL_FINGER, data[1] ||
+ data[2] || data[3]);
+ input_report_abs(input_dev, ABS_WHEEL, data[1]);
+ input_report_key(input_dev, BTN_0, data[2]);
+ for (i = 0; i < 8; i++)
+ input_report_key(input_dev,
+ BTN_1 + i, data[3] & (1 << i));
+ break;
+
+ case HANWANG_ART_MASTER_HD:
+ input_report_key(input_dev, BTN_TOOL_FINGER, data[1] ||
+ data[2] || data[3] || data[4] ||
+ data[5] || data[6]);
+ input_report_abs(input_dev, ABS_RX,
+ ((data[1] & 0x1f) << 8) | data[2]);
+ input_report_abs(input_dev, ABS_RY,
+ ((data[3] & 0x1f) << 8) | data[4]);
+ input_report_key(input_dev, BTN_0, data[5] & 0x01);
+ for (i = 0; i < 4; i++) {
+ input_report_key(input_dev,
+ BTN_1 + i, data[5] & (1 << i));
+ input_report_key(input_dev,
+ BTN_5 + i, data[6] & (1 << i));
+ }
+ break;
+ }
+
+ input_report_abs(input_dev, ABS_MISC, hanwang->current_id);
+ input_event(input_dev, EV_MSC, MSC_SERIAL, 0xffffffff);
+ break;
+
+ default:
+ dev_dbg(&dev->dev, "error packet %02x ", data[0]);
+ break;
+ }
+
+ input_sync(input_dev);
+}
+
+static void hanwang_irq(struct urb *urb)
+{
+ struct hanwang *hanwang = urb->context;
+ struct usb_device *dev = hanwang->usbdev;
+ int retval;
+
+ switch (urb->status) {
+ case 0:
+ /* success */;
+ hanwang_parse_packet(hanwang);
+ break;
+ case -ECONNRESET:
+ case -ENOENT:
+ case -ESHUTDOWN:
+ /* this urb is terminated, clean up */
+ dev_err(&dev->dev, "%s - urb shutting down with status: %d",
+ __func__, urb->status);
+ return;
+ default:
+ dev_err(&dev->dev, "%s - nonzero urb status received: %d",
+ __func__, urb->status);
+ break;
+ }
+
+ retval = usb_submit_urb(urb, GFP_ATOMIC);
+ if (retval)
+ dev_err(&dev->dev, "%s - usb_submit_urb failed with result %d",
+ __func__, retval);
+}
+
+static int hanwang_open(struct input_dev *dev)
+{
+ struct hanwang *hanwang = input_get_drvdata(dev);
+
+ hanwang->irq->dev = hanwang->usbdev;
+ if (usb_submit_urb(hanwang->irq, GFP_KERNEL))
+ return -EIO;
+
+ return 0;
+}
+
+static void hanwang_close(struct input_dev *dev)
+{
+ struct hanwang *hanwang = input_get_drvdata(dev);
+
+ usb_kill_urb(hanwang->irq);
+}
+
+static bool get_features(struct usb_device *dev, struct hanwang *hanwang)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(features_array); i++) {
+ if (le16_to_cpu(dev->descriptor.idProduct) ==
+ features_array[i].pid) {
+ hanwang->features = &features_array[i];
+ return true;
+ }
+ }
+
+ return false;
+}
+
+
+static int hanwang_probe(struct usb_interface *intf, const struct usb_device_id *id)
+{
+ struct usb_device *dev = interface_to_usbdev(intf);
+ struct usb_endpoint_descriptor *endpoint;
+ struct hanwang *hanwang;
+ struct input_dev *input_dev;
+ int error;
+ int i;
+
+ hanwang = kzalloc(sizeof(struct hanwang), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!hanwang || !input_dev) {
+ error = -ENOMEM;
+ goto fail1;
+ }
+
+ if (!get_features(dev, hanwang)) {
+ error = -ENXIO;
+ goto fail1;
+ }
+
+ hanwang->data = usb_alloc_coherent(dev, hanwang->features->pkg_len,
+ GFP_KERNEL, &hanwang->data_dma);
+ if (!hanwang->data) {
+ error = -ENOMEM;
+ goto fail1;
+ }
+
+ hanwang->irq = usb_alloc_urb(0, GFP_KERNEL);
+ if (!hanwang->irq) {
+ error = -ENOMEM;
+ goto fail2;
+ }
+
+ hanwang->usbdev = dev;
+ hanwang->dev = input_dev;
+
+ usb_make_path(dev, hanwang->phys, sizeof(hanwang->phys));
+ strlcat(hanwang->phys, "/input0", sizeof(hanwang->phys));
+
+ strlcpy(hanwang->name, hanwang->features->name, sizeof(hanwang->name));
+ input_dev->name = hanwang->name;
+ input_dev->phys = hanwang->phys;
+ usb_to_input_id(dev, &input_dev->id);
+ input_dev->dev.parent = &intf->dev;
+
+ input_set_drvdata(input_dev, hanwang);
+
+ input_dev->open = hanwang_open;
+ input_dev->close = hanwang_close;
+
+ for (i = 0; i < ARRAY_SIZE(hw_eventtypes); ++i)
+ __set_bit(hw_eventtypes[i], input_dev->evbit);
+
+ for (i = 0; i < ARRAY_SIZE(hw_absevents); ++i)
+ __set_bit(hw_absevents[i], input_dev->absbit);
+
+ for (i = 0; i < ARRAY_SIZE(hw_btnevents); ++i)
+ __set_bit(hw_btnevents[i], input_dev->keybit);
+
+ for (i = 0; i < ARRAY_SIZE(hw_mscevents); ++i)
+ __set_bit(hw_mscevents[i], input_dev->mscbit);
+
+ input_set_abs_params(input_dev, ABS_X,
+ 0, hanwang->features->max_x, 4, 0);
+ input_set_abs_params(input_dev, ABS_Y,
+ 0, hanwang->features->max_y, 4, 0);
+ input_set_abs_params(input_dev, ABS_TILT_X,
+ 0, hanwang->features->max_tilt_x, 0, 0);
+ input_set_abs_params(input_dev, ABS_TILT_Y,
+ 0, hanwang->features->max_tilt_y, 0, 0);
+ input_set_abs_params(input_dev, ABS_PRESSURE,
+ 0, hanwang->features->max_pressure, 0, 0);
+
+ endpoint = &intf->cur_altsetting->endpoint[0].desc;
+ usb_fill_int_urb(hanwang->irq, dev,
+ usb_rcvintpipe(dev, endpoint->bEndpointAddress),
+ hanwang->data, hanwang->features->pkg_len,
+ hanwang_irq, hanwang, endpoint->bInterval);
+ hanwang->irq->transfer_dma = hanwang->data_dma;
+ hanwang->irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
+
+ error = input_register_device(hanwang->dev);
+ if (error)
+ goto fail3;
+
+ usb_set_intfdata(intf, hanwang);
+
+ return 0;
+
+ fail3: usb_free_urb(hanwang->irq);
+ fail2: usb_free_coherent(dev, hanwang->features->pkg_len,
+ hanwang->data, hanwang->data_dma);
+ fail1: input_free_device(input_dev);
+ kfree(hanwang);
+ return error;
+
+}
+
+static void hanwang_disconnect(struct usb_interface *intf)
+{
+ struct hanwang *hanwang = usb_get_intfdata(intf);
+
+ input_unregister_device(hanwang->dev);
+ usb_free_urb(hanwang->irq);
+ usb_free_coherent(interface_to_usbdev(intf),
+ hanwang->features->pkg_len, hanwang->data,
+ hanwang->data_dma);
+ kfree(hanwang);
+ usb_set_intfdata(intf, NULL);
+}
+
+static const struct usb_device_id hanwang_ids[] = {
+ { HANWANG_TABLET_DEVICE(USB_VENDOR_ID_HANWANG, HANWANG_TABLET_INT_CLASS,
+ HANWANG_TABLET_INT_SUB_CLASS, HANWANG_TABLET_INT_PROTOCOL) },
+ {}
+};
+
+MODULE_DEVICE_TABLE(usb, hanwang_ids);
+
+static struct usb_driver hanwang_driver = {
+ .name = "hanwang",
+ .probe = hanwang_probe,
+ .disconnect = hanwang_disconnect,
+ .id_table = hanwang_ids,
+};
+
+static int __init hanwang_init(void)
+{
+ return usb_register(&hanwang_driver);
+}
+
+static void __exit hanwang_exit(void)
+{
+ usb_deregister(&hanwang_driver);
+}
+
+module_init(hanwang_init);
+module_exit(hanwang_exit);
diff --git a/drivers/input/tablet/kbtab.c b/drivers/input/tablet/kbtab.c
new file mode 100644
index 0000000..290f4e5
--- /dev/null
+++ b/drivers/input/tablet/kbtab.c
@@ -0,0 +1,219 @@
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/usb/input.h>
+#include <asm/unaligned.h>
+
+/*
+ * Version Information
+ * v0.0.1 - Original, extremely basic version, 2.4.xx only
+ * v0.0.2 - Updated, works with 2.5.62 and 2.4.20;
+ * - added pressure-threshold modules param code from
+ * Alex Perry <alex.perry@ieee.org>
+ */
+
+#define DRIVER_VERSION "v0.0.2"
+#define DRIVER_AUTHOR "Josh Myer <josh@joshisanerd.com>"
+#define DRIVER_DESC "USB KB Gear JamStudio Tablet driver"
+#define DRIVER_LICENSE "GPL"
+
+MODULE_AUTHOR(DRIVER_AUTHOR);
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE(DRIVER_LICENSE);
+
+#define USB_VENDOR_ID_KBGEAR 0x084e
+
+static int kb_pressure_click = 0x10;
+module_param(kb_pressure_click, int, 0);
+MODULE_PARM_DESC(kb_pressure_click, "pressure threshold for clicks");
+
+struct kbtab {
+ unsigned char *data;
+ dma_addr_t data_dma;
+ struct input_dev *dev;
+ struct usb_device *usbdev;
+ struct urb *irq;
+ char phys[32];
+};
+
+static void kbtab_irq(struct urb *urb)
+{
+ struct kbtab *kbtab = urb->context;
+ unsigned char *data = kbtab->data;
+ struct input_dev *dev = kbtab->dev;
+ int pressure;
+ int retval;
+
+ switch (urb->status) {
+ case 0:
+ /* success */
+ break;
+ case -ECONNRESET:
+ case -ENOENT:
+ case -ESHUTDOWN:
+ /* this urb is terminated, clean up */
+ dbg("%s - urb shutting down with status: %d", __func__, urb->status);
+ return;
+ default:
+ dbg("%s - nonzero urb status received: %d", __func__, urb->status);
+ goto exit;
+ }
+
+
+ input_report_key(dev, BTN_TOOL_PEN, 1);
+
+ input_report_abs(dev, ABS_X, get_unaligned_le16(&data[1]));
+ input_report_abs(dev, ABS_Y, get_unaligned_le16(&data[3]));
+
+ /*input_report_key(dev, BTN_TOUCH , data[0] & 0x01);*/
+ input_report_key(dev, BTN_RIGHT, data[0] & 0x02);
+
+ pressure = data[5];
+ if (kb_pressure_click == -1)
+ input_report_abs(dev, ABS_PRESSURE, pressure);
+ else
+ input_report_key(dev, BTN_LEFT, pressure > kb_pressure_click ? 1 : 0);
+
+ input_sync(dev);
+
+ exit:
+ retval = usb_submit_urb(urb, GFP_ATOMIC);
+ if (retval)
+ err("%s - usb_submit_urb failed with result %d",
+ __func__, retval);
+}
+
+static struct usb_device_id kbtab_ids[] = {
+ { USB_DEVICE(USB_VENDOR_ID_KBGEAR, 0x1001), .driver_info = 0 },
+ { }
+};
+
+MODULE_DEVICE_TABLE(usb, kbtab_ids);
+
+static int kbtab_open(struct input_dev *dev)
+{
+ struct kbtab *kbtab = input_get_drvdata(dev);
+
+ kbtab->irq->dev = kbtab->usbdev;
+ if (usb_submit_urb(kbtab->irq, GFP_KERNEL))
+ return -EIO;
+
+ return 0;
+}
+
+static void kbtab_close(struct input_dev *dev)
+{
+ struct kbtab *kbtab = input_get_drvdata(dev);
+
+ usb_kill_urb(kbtab->irq);
+}
+
+static int kbtab_probe(struct usb_interface *intf, const struct usb_device_id *id)
+{
+ struct usb_device *dev = interface_to_usbdev(intf);
+ struct usb_endpoint_descriptor *endpoint;
+ struct kbtab *kbtab;
+ struct input_dev *input_dev;
+ int error = -ENOMEM;
+
+ kbtab = kzalloc(sizeof(struct kbtab), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!kbtab || !input_dev)
+ goto fail1;
+
+ kbtab->data = usb_alloc_coherent(dev, 8, GFP_KERNEL, &kbtab->data_dma);
+ if (!kbtab->data)
+ goto fail1;
+
+ kbtab->irq = usb_alloc_urb(0, GFP_KERNEL);
+ if (!kbtab->irq)
+ goto fail2;
+
+ kbtab->usbdev = dev;
+ kbtab->dev = input_dev;
+
+ usb_make_path(dev, kbtab->phys, sizeof(kbtab->phys));
+ strlcat(kbtab->phys, "/input0", sizeof(kbtab->phys));
+
+ input_dev->name = "KB Gear Tablet";
+ input_dev->phys = kbtab->phys;
+ usb_to_input_id(dev, &input_dev->id);
+ input_dev->dev.parent = &intf->dev;
+
+ input_set_drvdata(input_dev, kbtab);
+
+ input_dev->open = kbtab_open;
+ input_dev->close = kbtab_close;
+
+ input_dev->evbit[0] |= BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
+ input_dev->keybit[BIT_WORD(BTN_LEFT)] |=
+ BIT_MASK(BTN_LEFT) | BIT_MASK(BTN_RIGHT);
+ input_dev->keybit[BIT_WORD(BTN_DIGI)] |=
+ BIT_MASK(BTN_TOOL_PEN) | BIT_MASK(BTN_TOUCH);
+ input_set_abs_params(input_dev, ABS_X, 0, 0x2000, 4, 0);
+ input_set_abs_params(input_dev, ABS_Y, 0, 0x1750, 4, 0);
+ input_set_abs_params(input_dev, ABS_PRESSURE, 0, 0xff, 0, 0);
+
+ endpoint = &intf->cur_altsetting->endpoint[0].desc;
+
+ usb_fill_int_urb(kbtab->irq, dev,
+ usb_rcvintpipe(dev, endpoint->bEndpointAddress),
+ kbtab->data, 8,
+ kbtab_irq, kbtab, endpoint->bInterval);
+ kbtab->irq->transfer_dma = kbtab->data_dma;
+ kbtab->irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
+
+ error = input_register_device(kbtab->dev);
+ if (error)
+ goto fail3;
+
+ usb_set_intfdata(intf, kbtab);
+
+ return 0;
+
+ fail3: usb_free_urb(kbtab->irq);
+ fail2: usb_free_coherent(dev, 8, kbtab->data, kbtab->data_dma);
+ fail1: input_free_device(input_dev);
+ kfree(kbtab);
+ return error;
+}
+
+static void kbtab_disconnect(struct usb_interface *intf)
+{
+ struct kbtab *kbtab = usb_get_intfdata(intf);
+
+ usb_set_intfdata(intf, NULL);
+
+ input_unregister_device(kbtab->dev);
+ usb_free_urb(kbtab->irq);
+ usb_free_coherent(kbtab->usbdev, 8, kbtab->data, kbtab->data_dma);
+ kfree(kbtab);
+}
+
+static struct usb_driver kbtab_driver = {
+ .name = "kbtab",
+ .probe = kbtab_probe,
+ .disconnect = kbtab_disconnect,
+ .id_table = kbtab_ids,
+};
+
+static int __init kbtab_init(void)
+{
+ int retval;
+ retval = usb_register(&kbtab_driver);
+ if (retval)
+ goto out;
+ printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":"
+ DRIVER_DESC "\n");
+out:
+ return retval;
+}
+
+static void __exit kbtab_exit(void)
+{
+ usb_deregister(&kbtab_driver);
+}
+
+module_init(kbtab_init);
+module_exit(kbtab_exit);
diff --git a/drivers/input/tablet/wacom.h b/drivers/input/tablet/wacom.h
new file mode 100644
index 0000000..0783864
--- /dev/null
+++ b/drivers/input/tablet/wacom.h
@@ -0,0 +1,131 @@
+/*
+ * drivers/input/tablet/wacom.h
+ *
+ * USB Wacom tablet support
+ *
+ * Copyright (c) 2000-2004 Vojtech Pavlik <vojtech@ucw.cz>
+ * Copyright (c) 2000 Andreas Bach Aaen <abach@stofanet.dk>
+ * Copyright (c) 2000 Clifford Wolf <clifford@clifford.at>
+ * Copyright (c) 2000 Sam Mosel <sam.mosel@computer.org>
+ * Copyright (c) 2000 James E. Blair <corvus@gnu.org>
+ * Copyright (c) 2000 Daniel Egger <egger@suse.de>
+ * Copyright (c) 2001 Frederic Lepied <flepied@mandrakesoft.com>
+ * Copyright (c) 2004 Panagiotis Issaris <panagiotis.issaris@mech.kuleuven.ac.be>
+ * Copyright (c) 2002-2011 Ping Cheng <pingc@wacom.com>
+ *
+ * ChangeLog:
+ * v0.1 (vp) - Initial release
+ * v0.2 (aba) - Support for all buttons / combinations
+ * v0.3 (vp) - Support for Intuos added
+ * v0.4 (sm) - Support for more Intuos models, menustrip
+ * relative mode, proximity.
+ * v0.5 (vp) - Big cleanup, nifty features removed,
+ * they belong in userspace
+ * v1.8 (vp) - Submit URB only when operating, moved to CVS,
+ * use input_report_key instead of report_btn and
+ * other cleanups
+ * v1.11 (vp) - Add URB ->dev setting for new kernels
+ * v1.11 (jb) - Add support for the 4D Mouse & Lens
+ * v1.12 (de) - Add support for two more inking pen IDs
+ * v1.14 (vp) - Use new USB device id probing scheme.
+ * Fix Wacom Graphire mouse wheel
+ * v1.18 (vp) - Fix mouse wheel direction
+ * Make mouse relative
+ * v1.20 (fl) - Report tool id for Intuos devices
+ * - Multi tools support
+ * - Corrected Intuos protocol decoding (airbrush, 4D mouse, lens cursor...)
+ * - Add PL models support
+ * - Fix Wacom Graphire mouse wheel again
+ * v1.21 (vp) - Removed protocol descriptions
+ * - Added MISC_SERIAL for tool serial numbers
+ * (gb) - Identify version on module load.
+ * v1.21.1 (fl) - added Graphire2 support
+ * v1.21.2 (fl) - added Intuos2 support
+ * - added all the PL ids
+ * v1.21.3 (fl) - added another eraser id from Neil Okamoto
+ * - added smooth filter for Graphire from Peri Hankey
+ * - added PenPartner support from Olaf van Es
+ * - new tool ids from Ole Martin Bjoerndalen
+ * v1.29 (pc) - Add support for more tablets
+ * - Fix pressure reporting
+ * v1.30 (vp) - Merge 2.4 and 2.5 drivers
+ * - Since 2.5 now has input_sync(), remove MSC_SERIAL abuse
+ * - Cleanups here and there
+ * v1.30.1 (pi) - Added Graphire3 support
+ * v1.40 (pc) - Add support for several new devices, fix eraser reporting, ...
+ * v1.43 (pc) - Added support for Cintiq 21UX
+ * - Fixed a Graphire bug
+ * - Merged wacom_intuos3_irq into wacom_intuos_irq
+ * v1.44 (pc) - Added support for Graphire4, Cintiq 710, Intuos3 6x11, etc.
+ * - Report Device IDs
+ * v1.45 (pc) - Added support for DTF 521, Intuos3 12x12 and 12x19
+ * - Minor data report fix
+ * v1.46 (pc) - Split wacom.c into wacom_sys.c and wacom_wac.c,
+ * - where wacom_sys.c deals with system specific code,
+ * - and wacom_wac.c deals with Wacom specific code
+ * - Support Intuos3 4x6
+ * v1.47 (pc) - Added support for Bamboo
+ * v1.48 (pc) - Added support for Bamboo1, BambooFun, and Cintiq 12WX
+ * v1.49 (pc) - Added support for USB Tablet PC (0x90, 0x93, and 0x9A)
+ * v1.50 (pc) - Fixed a TabletPC touch bug in 2.6.28
+ * v1.51 (pc) - Added support for Intuos4
+ * v1.52 (pc) - Query Wacom data upon system resume
+ * - add defines for features->type
+ * - add new devices (0x9F, 0xE2, and 0XE3)
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+#ifndef WACOM_H
+#define WACOM_H
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/mod_devicetable.h>
+#include <linux/init.h>
+#include <linux/usb/input.h>
+#include <asm/unaligned.h>
+
+/*
+ * Version Information
+ */
+#define DRIVER_VERSION "v1.53"
+#define DRIVER_AUTHOR "Vojtech Pavlik <vojtech@ucw.cz>"
+#define DRIVER_DESC "USB Wacom tablet driver"
+#define DRIVER_LICENSE "GPL"
+
+MODULE_AUTHOR(DRIVER_AUTHOR);
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE(DRIVER_LICENSE);
+
+#define USB_VENDOR_ID_WACOM 0x056a
+#define USB_VENDOR_ID_LENOVO 0x17ef
+
+struct wacom {
+ dma_addr_t data_dma;
+ struct usb_device *usbdev;
+ struct usb_interface *intf;
+ struct urb *irq;
+ struct wacom_wac wacom_wac;
+ struct mutex lock;
+ bool open;
+ char phys[32];
+ struct wacom_led {
+ u8 select[2]; /* status led selector (0..3) */
+ u8 llv; /* status led brightness no button (1..127) */
+ u8 hlv; /* status led brightness button pressed (1..127) */
+ u8 img_lum; /* OLED matrix display brightness */
+ } led;
+};
+
+extern const struct usb_device_id wacom_ids[];
+
+void wacom_wac_irq(struct wacom_wac *wacom_wac, size_t len);
+void wacom_setup_device_quirks(struct wacom_features *features);
+void wacom_setup_input_capabilities(struct input_dev *input_dev,
+ struct wacom_wac *wacom_wac);
+#endif
diff --git a/drivers/input/tablet/wacom_sys.c b/drivers/input/tablet/wacom_sys.c
new file mode 100644
index 0000000..1c1b7b4
--- /dev/null
+++ b/drivers/input/tablet/wacom_sys.c
@@ -0,0 +1,939 @@
+/*
+ * drivers/input/tablet/wacom_sys.c
+ *
+ * USB Wacom tablet support - system specific code
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#include "wacom_wac.h"
+#include "wacom.h"
+
+/* defines to get HID report descriptor */
+#define HID_DEVICET_HID (USB_TYPE_CLASS | 0x01)
+#define HID_DEVICET_REPORT (USB_TYPE_CLASS | 0x02)
+#define HID_USAGE_UNDEFINED 0x00
+#define HID_USAGE_PAGE 0x05
+#define HID_USAGE_PAGE_DIGITIZER 0x0d
+#define HID_USAGE_PAGE_DESKTOP 0x01
+#define HID_USAGE 0x09
+#define HID_USAGE_X 0x30
+#define HID_USAGE_Y 0x31
+#define HID_USAGE_X_TILT 0x3d
+#define HID_USAGE_Y_TILT 0x3e
+#define HID_USAGE_FINGER 0x22
+#define HID_USAGE_STYLUS 0x20
+#define HID_COLLECTION 0xc0
+
+enum {
+ WCM_UNDEFINED = 0,
+ WCM_DESKTOP,
+ WCM_DIGITIZER,
+};
+
+struct hid_descriptor {
+ struct usb_descriptor_header header;
+ __le16 bcdHID;
+ u8 bCountryCode;
+ u8 bNumDescriptors;
+ u8 bDescriptorType;
+ __le16 wDescriptorLength;
+} __attribute__ ((packed));
+
+/* defines to get/set USB message */
+#define USB_REQ_GET_REPORT 0x01
+#define USB_REQ_SET_REPORT 0x09
+
+#define WAC_HID_FEATURE_REPORT 0x03
+#define WAC_MSG_RETRIES 5
+
+#define WAC_CMD_LED_CONTROL 0x20
+#define WAC_CMD_ICON_START 0x21
+#define WAC_CMD_ICON_XFER 0x23
+#define WAC_CMD_RETRIES 10
+
+static int wacom_get_report(struct usb_interface *intf, u8 type, u8 id,
+ void *buf, size_t size, unsigned int retries)
+{
+ struct usb_device *dev = interface_to_usbdev(intf);
+ int retval;
+
+ do {
+ retval = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0),
+ USB_REQ_GET_REPORT,
+ USB_TYPE_CLASS | USB_RECIP_INTERFACE,
+ (type << 8) + id,
+ intf->altsetting[0].desc.bInterfaceNumber,
+ buf, size, 100);
+ } while ((retval == -ETIMEDOUT || retval == -EPIPE) && --retries);
+
+ return retval;
+}
+
+static int wacom_set_report(struct usb_interface *intf, u8 type, u8 id,
+ void *buf, size_t size, unsigned int retries)
+{
+ struct usb_device *dev = interface_to_usbdev(intf);
+ int retval;
+
+ do {
+ retval = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
+ USB_REQ_SET_REPORT,
+ USB_TYPE_CLASS | USB_RECIP_INTERFACE,
+ (type << 8) + id,
+ intf->altsetting[0].desc.bInterfaceNumber,
+ buf, size, 1000);
+ } while ((retval == -ETIMEDOUT || retval == -EPIPE) && --retries);
+
+ return retval;
+}
+
+static void wacom_sys_irq(struct urb *urb)
+{
+ struct wacom *wacom = urb->context;
+ int retval;
+
+ switch (urb->status) {
+ case 0:
+ /* success */
+ break;
+ case -ECONNRESET:
+ case -ENOENT:
+ case -ESHUTDOWN:
+ /* this urb is terminated, clean up */
+ dbg("%s - urb shutting down with status: %d", __func__, urb->status);
+ return;
+ default:
+ dbg("%s - nonzero urb status received: %d", __func__, urb->status);
+ goto exit;
+ }
+
+ wacom_wac_irq(&wacom->wacom_wac, urb->actual_length);
+
+ exit:
+ usb_mark_last_busy(wacom->usbdev);
+ retval = usb_submit_urb(urb, GFP_ATOMIC);
+ if (retval)
+ err ("%s - usb_submit_urb failed with result %d",
+ __func__, retval);
+}
+
+static int wacom_open(struct input_dev *dev)
+{
+ struct wacom *wacom = input_get_drvdata(dev);
+ int retval = 0;
+
+ if (usb_autopm_get_interface(wacom->intf) < 0)
+ return -EIO;
+
+ mutex_lock(&wacom->lock);
+
+ if (usb_submit_urb(wacom->irq, GFP_KERNEL)) {
+ retval = -EIO;
+ goto out;
+ }
+
+ wacom->open = true;
+ wacom->intf->needs_remote_wakeup = 1;
+
+out:
+ mutex_unlock(&wacom->lock);
+ usb_autopm_put_interface(wacom->intf);
+ return retval;
+}
+
+static void wacom_close(struct input_dev *dev)
+{
+ struct wacom *wacom = input_get_drvdata(dev);
+ int autopm_error;
+
+ autopm_error = usb_autopm_get_interface(wacom->intf);
+
+ mutex_lock(&wacom->lock);
+ usb_kill_urb(wacom->irq);
+ wacom->open = false;
+ wacom->intf->needs_remote_wakeup = 0;
+ mutex_unlock(&wacom->lock);
+
+ if (!autopm_error)
+ usb_autopm_put_interface(wacom->intf);
+}
+
+static int wacom_parse_hid(struct usb_interface *intf, struct hid_descriptor *hid_desc,
+ struct wacom_features *features)
+{
+ struct usb_device *dev = interface_to_usbdev(intf);
+ char limit = 0;
+ /* result has to be defined as int for some devices */
+ int result = 0;
+ int i = 0, usage = WCM_UNDEFINED, finger = 0, pen = 0;
+ unsigned char *report;
+
+ report = kzalloc(hid_desc->wDescriptorLength, GFP_KERNEL);
+ if (!report)
+ return -ENOMEM;
+
+ /* retrive report descriptors */
+ do {
+ result = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0),
+ USB_REQ_GET_DESCRIPTOR,
+ USB_RECIP_INTERFACE | USB_DIR_IN,
+ HID_DEVICET_REPORT << 8,
+ intf->altsetting[0].desc.bInterfaceNumber, /* interface */
+ report,
+ hid_desc->wDescriptorLength,
+ 5000); /* 5 secs */
+ } while (result < 0 && limit++ < WAC_MSG_RETRIES);
+
+ /* No need to parse the Descriptor. It isn't an error though */
+ if (result < 0)
+ goto out;
+
+ for (i = 0; i < hid_desc->wDescriptorLength; i++) {
+
+ switch (report[i]) {
+ case HID_USAGE_PAGE:
+ switch (report[i + 1]) {
+ case HID_USAGE_PAGE_DIGITIZER:
+ usage = WCM_DIGITIZER;
+ i++;
+ break;
+
+ case HID_USAGE_PAGE_DESKTOP:
+ usage = WCM_DESKTOP;
+ i++;
+ break;
+ }
+ break;
+
+ case HID_USAGE:
+ switch (report[i + 1]) {
+ case HID_USAGE_X:
+ if (usage == WCM_DESKTOP) {
+ if (finger) {
+ features->device_type = BTN_TOOL_FINGER;
+ if (features->type == TABLETPC2FG) {
+ /* need to reset back */
+ features->pktlen = WACOM_PKGLEN_TPC2FG;
+ features->device_type = BTN_TOOL_DOUBLETAP;
+ }
+ if (features->type == BAMBOO_PT) {
+ /* need to reset back */
+ features->pktlen = WACOM_PKGLEN_BBTOUCH;
+ features->device_type = BTN_TOOL_DOUBLETAP;
+ features->x_phy =
+ get_unaligned_le16(&report[i + 5]);
+ features->x_max =
+ get_unaligned_le16(&report[i + 8]);
+ i += 15;
+ } else {
+ features->x_max =
+ get_unaligned_le16(&report[i + 3]);
+ features->x_phy =
+ get_unaligned_le16(&report[i + 6]);
+ features->unit = report[i + 9];
+ features->unitExpo = report[i + 11];
+ i += 12;
+ }
+ } else if (pen) {
+ /* penabled only accepts exact bytes of data */
+ if (features->type == TABLETPC2FG)
+ features->pktlen = WACOM_PKGLEN_GRAPHIRE;
+ if (features->type == BAMBOO_PT)
+ features->pktlen = WACOM_PKGLEN_BBFUN;
+ features->device_type = BTN_TOOL_PEN;
+ features->x_max =
+ get_unaligned_le16(&report[i + 3]);
+ i += 4;
+ }
+ }
+ break;
+
+ case HID_USAGE_Y:
+ if (usage == WCM_DESKTOP) {
+ if (finger) {
+ features->device_type = BTN_TOOL_FINGER;
+ if (features->type == TABLETPC2FG) {
+ /* need to reset back */
+ features->pktlen = WACOM_PKGLEN_TPC2FG;
+ features->device_type = BTN_TOOL_DOUBLETAP;
+ features->y_max =
+ get_unaligned_le16(&report[i + 3]);
+ features->y_phy =
+ get_unaligned_le16(&report[i + 6]);
+ i += 7;
+ } else if (features->type == BAMBOO_PT) {
+ /* need to reset back */
+ features->pktlen = WACOM_PKGLEN_BBTOUCH;
+ features->device_type = BTN_TOOL_DOUBLETAP;
+ features->y_phy =
+ get_unaligned_le16(&report[i + 3]);
+ features->y_max =
+ get_unaligned_le16(&report[i + 6]);
+ i += 12;
+ } else {
+ features->y_max =
+ features->x_max;
+ features->y_phy =
+ get_unaligned_le16(&report[i + 3]);
+ i += 4;
+ }
+ } else if (pen) {
+ /* penabled only accepts exact bytes of data */
+ if (features->type == TABLETPC2FG)
+ features->pktlen = WACOM_PKGLEN_GRAPHIRE;
+ if (features->type == BAMBOO_PT)
+ features->pktlen = WACOM_PKGLEN_BBFUN;
+ features->device_type = BTN_TOOL_PEN;
+ features->y_max =
+ get_unaligned_le16(&report[i + 3]);
+ i += 4;
+ }
+ }
+ break;
+
+ case HID_USAGE_FINGER:
+ finger = 1;
+ i++;
+ break;
+
+ case HID_USAGE_STYLUS:
+ pen = 1;
+ i++;
+ break;
+ }
+ break;
+
+ case HID_COLLECTION:
+ /* reset UsagePage and Finger */
+ finger = usage = 0;
+ break;
+ }
+ }
+
+ out:
+ result = 0;
+ kfree(report);
+ return result;
+}
+
+static int wacom_query_tablet_data(struct usb_interface *intf, struct wacom_features *features)
+{
+ unsigned char *rep_data;
+ int limit = 0, report_id = 2;
+ int error = -ENOMEM;
+
+ rep_data = kmalloc(4, GFP_KERNEL);
+ if (!rep_data)
+ return error;
+
+ /* ask to report tablet data if it is MT Tablet PC or
+ * not a Tablet PC */
+ if (features->type == TABLETPC2FG) {
+ do {
+ rep_data[0] = 3;
+ rep_data[1] = 4;
+ rep_data[2] = 0;
+ rep_data[3] = 0;
+ report_id = 3;
+ error = wacom_set_report(intf, WAC_HID_FEATURE_REPORT,
+ report_id, rep_data, 4, 1);
+ if (error >= 0)
+ error = wacom_get_report(intf,
+ WAC_HID_FEATURE_REPORT,
+ report_id, rep_data, 4, 1);
+ } while ((error < 0 || rep_data[1] != 4) && limit++ < WAC_MSG_RETRIES);
+ } else if (features->type != TABLETPC) {
+ do {
+ rep_data[0] = 2;
+ rep_data[1] = 2;
+ error = wacom_set_report(intf, WAC_HID_FEATURE_REPORT,
+ report_id, rep_data, 2, 1);
+ if (error >= 0)
+ error = wacom_get_report(intf,
+ WAC_HID_FEATURE_REPORT,
+ report_id, rep_data, 2, 1);
+ } while ((error < 0 || rep_data[1] != 2) && limit++ < WAC_MSG_RETRIES);
+ }
+
+ kfree(rep_data);
+
+ return error < 0 ? error : 0;
+}
+
+static int wacom_retrieve_hid_descriptor(struct usb_interface *intf,
+ struct wacom_features *features)
+{
+ int error = 0;
+ struct usb_host_interface *interface = intf->cur_altsetting;
+ struct hid_descriptor *hid_desc;
+
+ /* default features */
+ features->device_type = BTN_TOOL_PEN;
+ features->x_fuzz = 4;
+ features->y_fuzz = 4;
+ features->pressure_fuzz = 0;
+ features->distance_fuzz = 0;
+
+ /* only Tablet PCs and Bamboo P&T need to retrieve the info */
+ if ((features->type != TABLETPC) && (features->type != TABLETPC2FG) &&
+ (features->type != BAMBOO_PT))
+ goto out;
+
+ if (usb_get_extra_descriptor(interface, HID_DEVICET_HID, &hid_desc)) {
+ if (usb_get_extra_descriptor(&interface->endpoint[0],
+ HID_DEVICET_REPORT, &hid_desc)) {
+ printk("wacom: can not retrieve extra class descriptor\n");
+ error = 1;
+ goto out;
+ }
+ }
+ error = wacom_parse_hid(intf, hid_desc, features);
+ if (error)
+ goto out;
+
+ out:
+ return error;
+}
+
+struct wacom_usbdev_data {
+ struct list_head list;
+ struct kref kref;
+ struct usb_device *dev;
+ struct wacom_shared shared;
+};
+
+static LIST_HEAD(wacom_udev_list);
+static DEFINE_MUTEX(wacom_udev_list_lock);
+
+static struct wacom_usbdev_data *wacom_get_usbdev_data(struct usb_device *dev)
+{
+ struct wacom_usbdev_data *data;
+
+ list_for_each_entry(data, &wacom_udev_list, list) {
+ if (data->dev == dev) {
+ kref_get(&data->kref);
+ return data;
+ }
+ }
+
+ return NULL;
+}
+
+static int wacom_add_shared_data(struct wacom_wac *wacom,
+ struct usb_device *dev)
+{
+ struct wacom_usbdev_data *data;
+ int retval = 0;
+
+ mutex_lock(&wacom_udev_list_lock);
+
+ data = wacom_get_usbdev_data(dev);
+ if (!data) {
+ data = kzalloc(sizeof(struct wacom_usbdev_data), GFP_KERNEL);
+ if (!data) {
+ retval = -ENOMEM;
+ goto out;
+ }
+
+ kref_init(&data->kref);
+ data->dev = dev;
+ list_add_tail(&data->list, &wacom_udev_list);
+ }
+
+ wacom->shared = &data->shared;
+
+out:
+ mutex_unlock(&wacom_udev_list_lock);
+ return retval;
+}
+
+static void wacom_release_shared_data(struct kref *kref)
+{
+ struct wacom_usbdev_data *data =
+ container_of(kref, struct wacom_usbdev_data, kref);
+
+ mutex_lock(&wacom_udev_list_lock);
+ list_del(&data->list);
+ mutex_unlock(&wacom_udev_list_lock);
+
+ kfree(data);
+}
+
+static void wacom_remove_shared_data(struct wacom_wac *wacom)
+{
+ struct wacom_usbdev_data *data;
+
+ if (wacom->shared) {
+ data = container_of(wacom->shared, struct wacom_usbdev_data, shared);
+ kref_put(&data->kref, wacom_release_shared_data);
+ wacom->shared = NULL;
+ }
+}
+
+static int wacom_led_control(struct wacom *wacom)
+{
+ unsigned char *buf;
+ int retval, led = 0;
+
+ buf = kzalloc(9, GFP_KERNEL);
+ if (!buf)
+ return -ENOMEM;
+
+ if (wacom->wacom_wac.features.type == WACOM_21UX2)
+ led = (wacom->led.select[1] << 4) | 0x40;
+
+ led |= wacom->led.select[0] | 0x4;
+
+ buf[0] = WAC_CMD_LED_CONTROL;
+ buf[1] = led;
+ buf[2] = wacom->led.llv;
+ buf[3] = wacom->led.hlv;
+ buf[4] = wacom->led.img_lum;
+
+ retval = wacom_set_report(wacom->intf, 0x03, WAC_CMD_LED_CONTROL,
+ buf, 9, WAC_CMD_RETRIES);
+ kfree(buf);
+
+ return retval;
+}
+
+static int wacom_led_putimage(struct wacom *wacom, int button_id, const void *img)
+{
+ unsigned char *buf;
+ int i, retval;
+
+ buf = kzalloc(259, GFP_KERNEL);
+ if (!buf)
+ return -ENOMEM;
+
+ /* Send 'start' command */
+ buf[0] = WAC_CMD_ICON_START;
+ buf[1] = 1;
+ retval = wacom_set_report(wacom->intf, 0x03, WAC_CMD_ICON_START,
+ buf, 2, WAC_CMD_RETRIES);
+ if (retval < 0)
+ goto out;
+
+ buf[0] = WAC_CMD_ICON_XFER;
+ buf[1] = button_id & 0x07;
+ for (i = 0; i < 4; i++) {
+ buf[2] = i;
+ memcpy(buf + 3, img + i * 256, 256);
+
+ retval = wacom_set_report(wacom->intf, 0x03, WAC_CMD_ICON_XFER,
+ buf, 259, WAC_CMD_RETRIES);
+ if (retval < 0)
+ break;
+ }
+
+ /* Send 'stop' */
+ buf[0] = WAC_CMD_ICON_START;
+ buf[1] = 0;
+ wacom_set_report(wacom->intf, 0x03, WAC_CMD_ICON_START,
+ buf, 2, WAC_CMD_RETRIES);
+
+out:
+ kfree(buf);
+ return retval;
+}
+
+static ssize_t wacom_led_select_store(struct device *dev, int set_id,
+ const char *buf, size_t count)
+{
+ struct wacom *wacom = dev_get_drvdata(dev);
+ unsigned int id;
+ int err;
+
+ err = kstrtouint(buf, 10, &id);
+ if (err)
+ return err;
+
+ mutex_lock(&wacom->lock);
+
+ wacom->led.select[set_id] = id & 0x3;
+ err = wacom_led_control(wacom);
+
+ mutex_unlock(&wacom->lock);
+
+ return err < 0 ? err : count;
+}
+
+#define DEVICE_LED_SELECT_ATTR(SET_ID) \
+static ssize_t wacom_led##SET_ID##_select_store(struct device *dev, \
+ struct device_attribute *attr, const char *buf, size_t count) \
+{ \
+ return wacom_led_select_store(dev, SET_ID, buf, count); \
+} \
+static ssize_t wacom_led##SET_ID##_select_show(struct device *dev, \
+ struct device_attribute *attr, char *buf) \
+{ \
+ struct wacom *wacom = dev_get_drvdata(dev); \
+ return snprintf(buf, 2, "%d\n", wacom->led.select[SET_ID]); \
+} \
+static DEVICE_ATTR(status_led##SET_ID##_select, S_IWUSR | S_IRUSR, \
+ wacom_led##SET_ID##_select_show, \
+ wacom_led##SET_ID##_select_store)
+
+DEVICE_LED_SELECT_ATTR(0);
+DEVICE_LED_SELECT_ATTR(1);
+
+static ssize_t wacom_luminance_store(struct wacom *wacom, u8 *dest,
+ const char *buf, size_t count)
+{
+ unsigned int value;
+ int err;
+
+ err = kstrtouint(buf, 10, &value);
+ if (err)
+ return err;
+
+ mutex_lock(&wacom->lock);
+
+ *dest = value & 0x7f;
+ err = wacom_led_control(wacom);
+
+ mutex_unlock(&wacom->lock);
+
+ return err < 0 ? err : count;
+}
+
+#define DEVICE_LUMINANCE_ATTR(name, field) \
+static ssize_t wacom_##name##_luminance_store(struct device *dev, \
+ struct device_attribute *attr, const char *buf, size_t count) \
+{ \
+ struct wacom *wacom = dev_get_drvdata(dev); \
+ \
+ return wacom_luminance_store(wacom, &wacom->led.field, \
+ buf, count); \
+} \
+static DEVICE_ATTR(name##_luminance, S_IWUSR, \
+ NULL, wacom_##name##_luminance_store)
+
+DEVICE_LUMINANCE_ATTR(status0, llv);
+DEVICE_LUMINANCE_ATTR(status1, hlv);
+DEVICE_LUMINANCE_ATTR(buttons, img_lum);
+
+static ssize_t wacom_button_image_store(struct device *dev, int button_id,
+ const char *buf, size_t count)
+{
+ struct wacom *wacom = dev_get_drvdata(dev);
+ int err;
+
+ if (count != 1024)
+ return -EINVAL;
+
+ mutex_lock(&wacom->lock);
+
+ err = wacom_led_putimage(wacom, button_id, buf);
+
+ mutex_unlock(&wacom->lock);
+
+ return err < 0 ? err : count;
+}
+
+#define DEVICE_BTNIMG_ATTR(BUTTON_ID) \
+static ssize_t wacom_btnimg##BUTTON_ID##_store(struct device *dev, \
+ struct device_attribute *attr, const char *buf, size_t count) \
+{ \
+ return wacom_button_image_store(dev, BUTTON_ID, buf, count); \
+} \
+static DEVICE_ATTR(button##BUTTON_ID##_rawimg, S_IWUSR, \
+ NULL, wacom_btnimg##BUTTON_ID##_store)
+
+DEVICE_BTNIMG_ATTR(0);
+DEVICE_BTNIMG_ATTR(1);
+DEVICE_BTNIMG_ATTR(2);
+DEVICE_BTNIMG_ATTR(3);
+DEVICE_BTNIMG_ATTR(4);
+DEVICE_BTNIMG_ATTR(5);
+DEVICE_BTNIMG_ATTR(6);
+DEVICE_BTNIMG_ATTR(7);
+
+static struct attribute *cintiq_led_attrs[] = {
+ &dev_attr_status_led0_select.attr,
+ &dev_attr_status_led1_select.attr,
+ NULL
+};
+
+static struct attribute_group cintiq_led_attr_group = {
+ .name = "wacom_led",
+ .attrs = cintiq_led_attrs,
+};
+
+static struct attribute *intuos4_led_attrs[] = {
+ &dev_attr_status0_luminance.attr,
+ &dev_attr_status1_luminance.attr,
+ &dev_attr_status_led0_select.attr,
+ &dev_attr_buttons_luminance.attr,
+ &dev_attr_button0_rawimg.attr,
+ &dev_attr_button1_rawimg.attr,
+ &dev_attr_button2_rawimg.attr,
+ &dev_attr_button3_rawimg.attr,
+ &dev_attr_button4_rawimg.attr,
+ &dev_attr_button5_rawimg.attr,
+ &dev_attr_button6_rawimg.attr,
+ &dev_attr_button7_rawimg.attr,
+ NULL
+};
+
+static struct attribute_group intuos4_led_attr_group = {
+ .name = "wacom_led",
+ .attrs = intuos4_led_attrs,
+};
+
+static int wacom_initialize_leds(struct wacom *wacom)
+{
+ int error;
+
+ /* Initialize default values */
+ switch (wacom->wacom_wac.features.type) {
+ case INTUOS4:
+ case INTUOS4L:
+ wacom->led.select[0] = 0;
+ wacom->led.select[1] = 0;
+ wacom->led.llv = 10;
+ wacom->led.hlv = 20;
+ wacom->led.img_lum = 10;
+ error = sysfs_create_group(&wacom->intf->dev.kobj,
+ &intuos4_led_attr_group);
+ break;
+
+ case WACOM_21UX2:
+ wacom->led.select[0] = 0;
+ wacom->led.select[1] = 0;
+ wacom->led.llv = 0;
+ wacom->led.hlv = 0;
+ wacom->led.img_lum = 0;
+
+ error = sysfs_create_group(&wacom->intf->dev.kobj,
+ &cintiq_led_attr_group);
+ break;
+
+ default:
+ return 0;
+ }
+
+ if (error) {
+ dev_err(&wacom->intf->dev,
+ "cannot create sysfs group err: %d\n", error);
+ return error;
+ }
+ wacom_led_control(wacom);
+
+ return 0;
+}
+
+static void wacom_destroy_leds(struct wacom *wacom)
+{
+ switch (wacom->wacom_wac.features.type) {
+ case INTUOS4:
+ case INTUOS4L:
+ sysfs_remove_group(&wacom->intf->dev.kobj,
+ &intuos4_led_attr_group);
+ break;
+
+ case WACOM_21UX2:
+ sysfs_remove_group(&wacom->intf->dev.kobj,
+ &cintiq_led_attr_group);
+ break;
+ }
+}
+
+static int wacom_probe(struct usb_interface *intf, const struct usb_device_id *id)
+{
+ struct usb_device *dev = interface_to_usbdev(intf);
+ struct usb_endpoint_descriptor *endpoint;
+ struct wacom *wacom;
+ struct wacom_wac *wacom_wac;
+ struct wacom_features *features;
+ struct input_dev *input_dev;
+ int error;
+
+ if (!id->driver_info)
+ return -EINVAL;
+
+ wacom = kzalloc(sizeof(struct wacom), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!wacom || !input_dev) {
+ error = -ENOMEM;
+ goto fail1;
+ }
+
+ wacom_wac = &wacom->wacom_wac;
+ wacom_wac->features = *((struct wacom_features *)id->driver_info);
+ features = &wacom_wac->features;
+ if (features->pktlen > WACOM_PKGLEN_MAX) {
+ error = -EINVAL;
+ goto fail1;
+ }
+
+ wacom_wac->data = usb_alloc_coherent(dev, WACOM_PKGLEN_MAX,
+ GFP_KERNEL, &wacom->data_dma);
+ if (!wacom_wac->data) {
+ error = -ENOMEM;
+ goto fail1;
+ }
+
+ wacom->irq = usb_alloc_urb(0, GFP_KERNEL);
+ if (!wacom->irq) {
+ error = -ENOMEM;
+ goto fail2;
+ }
+
+ wacom->usbdev = dev;
+ wacom->intf = intf;
+ mutex_init(&wacom->lock);
+ usb_make_path(dev, wacom->phys, sizeof(wacom->phys));
+ strlcat(wacom->phys, "/input0", sizeof(wacom->phys));
+
+ wacom_wac->input = input_dev;
+
+ endpoint = &intf->cur_altsetting->endpoint[0].desc;
+
+ /* Retrieve the physical and logical size for OEM devices */
+ error = wacom_retrieve_hid_descriptor(intf, features);
+ if (error)
+ goto fail3;
+
+ wacom_setup_device_quirks(features);
+
+ strlcpy(wacom_wac->name, features->name, sizeof(wacom_wac->name));
+
+ if (features->quirks & WACOM_QUIRK_MULTI_INPUT) {
+ /* Append the device type to the name */
+ strlcat(wacom_wac->name,
+ features->device_type == BTN_TOOL_PEN ?
+ " Pen" : " Finger",
+ sizeof(wacom_wac->name));
+
+ error = wacom_add_shared_data(wacom_wac, dev);
+ if (error)
+ goto fail3;
+ }
+
+ input_dev->name = wacom_wac->name;
+ input_dev->dev.parent = &intf->dev;
+ input_dev->open = wacom_open;
+ input_dev->close = wacom_close;
+ usb_to_input_id(dev, &input_dev->id);
+ input_set_drvdata(input_dev, wacom);
+
+ wacom_setup_input_capabilities(input_dev, wacom_wac);
+
+ usb_fill_int_urb(wacom->irq, dev,
+ usb_rcvintpipe(dev, endpoint->bEndpointAddress),
+ wacom_wac->data, features->pktlen,
+ wacom_sys_irq, wacom, endpoint->bInterval);
+ wacom->irq->transfer_dma = wacom->data_dma;
+ wacom->irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
+
+ error = wacom_initialize_leds(wacom);
+ if (error)
+ goto fail4;
+
+ error = input_register_device(input_dev);
+ if (error)
+ goto fail5;
+
+ /* Note that if query fails it is not a hard failure */
+ wacom_query_tablet_data(intf, features);
+
+ usb_set_intfdata(intf, wacom);
+ return 0;
+
+ fail5: wacom_destroy_leds(wacom);
+ fail4: wacom_remove_shared_data(wacom_wac);
+ fail3: usb_free_urb(wacom->irq);
+ fail2: usb_free_coherent(dev, WACOM_PKGLEN_MAX, wacom_wac->data, wacom->data_dma);
+ fail1: input_free_device(input_dev);
+ kfree(wacom);
+ return error;
+}
+
+static void wacom_disconnect(struct usb_interface *intf)
+{
+ struct wacom *wacom = usb_get_intfdata(intf);
+
+ usb_set_intfdata(intf, NULL);
+
+ usb_kill_urb(wacom->irq);
+ input_unregister_device(wacom->wacom_wac.input);
+ wacom_destroy_leds(wacom);
+ usb_free_urb(wacom->irq);
+ usb_free_coherent(interface_to_usbdev(intf), WACOM_PKGLEN_MAX,
+ wacom->wacom_wac.data, wacom->data_dma);
+ wacom_remove_shared_data(&wacom->wacom_wac);
+ kfree(wacom);
+}
+
+static int wacom_suspend(struct usb_interface *intf, pm_message_t message)
+{
+ struct wacom *wacom = usb_get_intfdata(intf);
+
+ mutex_lock(&wacom->lock);
+ usb_kill_urb(wacom->irq);
+ mutex_unlock(&wacom->lock);
+
+ return 0;
+}
+
+static int wacom_resume(struct usb_interface *intf)
+{
+ struct wacom *wacom = usb_get_intfdata(intf);
+ struct wacom_features *features = &wacom->wacom_wac.features;
+ int rv = 0;
+
+ mutex_lock(&wacom->lock);
+
+ /* switch to wacom mode first */
+ wacom_query_tablet_data(intf, features);
+ wacom_led_control(wacom);
+
+ if (wacom->open && usb_submit_urb(wacom->irq, GFP_NOIO) < 0)
+ rv = -EIO;
+
+ mutex_unlock(&wacom->lock);
+
+ return rv;
+}
+
+static int wacom_reset_resume(struct usb_interface *intf)
+{
+ return wacom_resume(intf);
+}
+
+static struct usb_driver wacom_driver = {
+ .name = "wacom",
+ .id_table = wacom_ids,
+ .probe = wacom_probe,
+ .disconnect = wacom_disconnect,
+ .suspend = wacom_suspend,
+ .resume = wacom_resume,
+ .reset_resume = wacom_reset_resume,
+ .supports_autosuspend = 1,
+};
+
+static int __init wacom_init(void)
+{
+ int result;
+
+ result = usb_register(&wacom_driver);
+ if (result == 0)
+ printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":"
+ DRIVER_DESC "\n");
+ return result;
+}
+
+static void __exit wacom_exit(void)
+{
+ usb_deregister(&wacom_driver);
+}
+
+module_init(wacom_init);
+module_exit(wacom_exit);
diff --git a/drivers/input/tablet/wacom_wac.c b/drivers/input/tablet/wacom_wac.c
new file mode 100644
index 0000000..f00c70e
--- /dev/null
+++ b/drivers/input/tablet/wacom_wac.c
@@ -0,0 +1,1617 @@
+/*
+ * drivers/input/tablet/wacom_wac.c
+ *
+ * USB Wacom tablet support - Wacom specific code
+ *
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#include "wacom_wac.h"
+#include "wacom.h"
+#include <linux/input/mt.h>
+#include <linux/hid.h>
+
+/* resolution for penabled devices */
+#define WACOM_PL_RES 20
+#define WACOM_PENPRTN_RES 40
+#define WACOM_VOLITO_RES 50
+#define WACOM_GRAPHIRE_RES 80
+#define WACOM_INTUOS_RES 100
+#define WACOM_INTUOS3_RES 200
+
+static int wacom_penpartner_irq(struct wacom_wac *wacom)
+{
+ unsigned char *data = wacom->data;
+ struct input_dev *input = wacom->input;
+
+ switch (data[0]) {
+ case 1:
+ if (data[5] & 0x80) {
+ wacom->tool[0] = (data[5] & 0x20) ? BTN_TOOL_RUBBER : BTN_TOOL_PEN;
+ wacom->id[0] = (data[5] & 0x20) ? ERASER_DEVICE_ID : STYLUS_DEVICE_ID;
+ input_report_key(input, wacom->tool[0], 1);
+ input_report_abs(input, ABS_MISC, wacom->id[0]); /* report tool id */
+ input_report_abs(input, ABS_X, get_unaligned_le16(&data[1]));
+ input_report_abs(input, ABS_Y, get_unaligned_le16(&data[3]));
+ input_report_abs(input, ABS_PRESSURE, (signed char)data[6] + 127);
+ input_report_key(input, BTN_TOUCH, ((signed char)data[6] > -127));
+ input_report_key(input, BTN_STYLUS, (data[5] & 0x40));
+ } else {
+ input_report_key(input, wacom->tool[0], 0);
+ input_report_abs(input, ABS_MISC, 0); /* report tool id */
+ input_report_abs(input, ABS_PRESSURE, -1);
+ input_report_key(input, BTN_TOUCH, 0);
+ }
+ break;
+
+ case 2:
+ input_report_key(input, BTN_TOOL_PEN, 1);
+ input_report_abs(input, ABS_MISC, STYLUS_DEVICE_ID); /* report tool id */
+ input_report_abs(input, ABS_X, get_unaligned_le16(&data[1]));
+ input_report_abs(input, ABS_Y, get_unaligned_le16(&data[3]));
+ input_report_abs(input, ABS_PRESSURE, (signed char)data[6] + 127);
+ input_report_key(input, BTN_TOUCH, ((signed char)data[6] > -80) && !(data[5] & 0x20));
+ input_report_key(input, BTN_STYLUS, (data[5] & 0x40));
+ break;
+
+ default:
+ printk(KERN_INFO "wacom_penpartner_irq: received unknown report #%d\n", data[0]);
+ return 0;
+ }
+
+ return 1;
+}
+
+static int wacom_pl_irq(struct wacom_wac *wacom)
+{
+ struct wacom_features *features = &wacom->features;
+ unsigned char *data = wacom->data;
+ struct input_dev *input = wacom->input;
+ int prox, pressure;
+
+ if (data[0] != WACOM_REPORT_PENABLED) {
+ dbg("wacom_pl_irq: received unknown report #%d", data[0]);
+ return 0;
+ }
+
+ prox = data[1] & 0x40;
+
+ if (prox) {
+ wacom->id[0] = ERASER_DEVICE_ID;
+ pressure = (signed char)((data[7] << 1) | ((data[4] >> 2) & 1));
+ if (features->pressure_max > 255)
+ pressure = (pressure << 1) | ((data[4] >> 6) & 1);
+ pressure += (features->pressure_max + 1) / 2;
+
+ /*
+ * if going from out of proximity into proximity select between the eraser
+ * and the pen based on the state of the stylus2 button, choose eraser if
+ * pressed else choose pen. if not a proximity change from out to in, send
+ * an out of proximity for previous tool then a in for new tool.
+ */
+ if (!wacom->tool[0]) {
+ /* Eraser bit set for DTF */
+ if (data[1] & 0x10)
+ wacom->tool[1] = BTN_TOOL_RUBBER;
+ else
+ /* Going into proximity select tool */
+ wacom->tool[1] = (data[4] & 0x20) ? BTN_TOOL_RUBBER : BTN_TOOL_PEN;
+ } else {
+ /* was entered with stylus2 pressed */
+ if (wacom->tool[1] == BTN_TOOL_RUBBER && !(data[4] & 0x20)) {
+ /* report out proximity for previous tool */
+ input_report_key(input, wacom->tool[1], 0);
+ input_sync(input);
+ wacom->tool[1] = BTN_TOOL_PEN;
+ return 0;
+ }
+ }
+ if (wacom->tool[1] != BTN_TOOL_RUBBER) {
+ /* Unknown tool selected default to pen tool */
+ wacom->tool[1] = BTN_TOOL_PEN;
+ wacom->id[0] = STYLUS_DEVICE_ID;
+ }
+ input_report_key(input, wacom->tool[1], prox); /* report in proximity for tool */
+ input_report_abs(input, ABS_MISC, wacom->id[0]); /* report tool id */
+ input_report_abs(input, ABS_X, data[3] | (data[2] << 7) | ((data[1] & 0x03) << 14));
+ input_report_abs(input, ABS_Y, data[6] | (data[5] << 7) | ((data[4] & 0x03) << 14));
+ input_report_abs(input, ABS_PRESSURE, pressure);
+
+ input_report_key(input, BTN_TOUCH, data[4] & 0x08);
+ input_report_key(input, BTN_STYLUS, data[4] & 0x10);
+ /* Only allow the stylus2 button to be reported for the pen tool. */
+ input_report_key(input, BTN_STYLUS2, (wacom->tool[1] == BTN_TOOL_PEN) && (data[4] & 0x20));
+ } else {
+ /* report proximity-out of a (valid) tool */
+ if (wacom->tool[1] != BTN_TOOL_RUBBER) {
+ /* Unknown tool selected default to pen tool */
+ wacom->tool[1] = BTN_TOOL_PEN;
+ }
+ input_report_key(input, wacom->tool[1], prox);
+ }
+
+ wacom->tool[0] = prox; /* Save proximity state */
+ return 1;
+}
+
+static int wacom_ptu_irq(struct wacom_wac *wacom)
+{
+ unsigned char *data = wacom->data;
+ struct input_dev *input = wacom->input;
+
+ if (data[0] != WACOM_REPORT_PENABLED) {
+ printk(KERN_INFO "wacom_ptu_irq: received unknown report #%d\n", data[0]);
+ return 0;
+ }
+
+ if (data[1] & 0x04) {
+ input_report_key(input, BTN_TOOL_RUBBER, data[1] & 0x20);
+ input_report_key(input, BTN_TOUCH, data[1] & 0x08);
+ wacom->id[0] = ERASER_DEVICE_ID;
+ } else {
+ input_report_key(input, BTN_TOOL_PEN, data[1] & 0x20);
+ input_report_key(input, BTN_TOUCH, data[1] & 0x01);
+ wacom->id[0] = STYLUS_DEVICE_ID;
+ }
+ input_report_abs(input, ABS_MISC, wacom->id[0]); /* report tool id */
+ input_report_abs(input, ABS_X, le16_to_cpup((__le16 *)&data[2]));
+ input_report_abs(input, ABS_Y, le16_to_cpup((__le16 *)&data[4]));
+ input_report_abs(input, ABS_PRESSURE, le16_to_cpup((__le16 *)&data[6]));
+ input_report_key(input, BTN_STYLUS, data[1] & 0x02);
+ input_report_key(input, BTN_STYLUS2, data[1] & 0x10);
+ return 1;
+}
+
+static int wacom_dtu_irq(struct wacom_wac *wacom)
+{
+ struct wacom_features *features = &wacom->features;
+ char *data = wacom->data;
+ struct input_dev *input = wacom->input;
+ int prox = data[1] & 0x20, pressure;
+
+ dbg("wacom_dtu_irq: received report #%d", data[0]);
+
+ if (prox) {
+ /* Going into proximity select tool */
+ wacom->tool[0] = (data[1] & 0x0c) ? BTN_TOOL_RUBBER : BTN_TOOL_PEN;
+ if (wacom->tool[0] == BTN_TOOL_PEN)
+ wacom->id[0] = STYLUS_DEVICE_ID;
+ else
+ wacom->id[0] = ERASER_DEVICE_ID;
+ }
+ input_report_key(input, BTN_STYLUS, data[1] & 0x02);
+ input_report_key(input, BTN_STYLUS2, data[1] & 0x10);
+ input_report_abs(input, ABS_X, le16_to_cpup((__le16 *)&data[2]));
+ input_report_abs(input, ABS_Y, le16_to_cpup((__le16 *)&data[4]));
+ pressure = ((data[7] & 0x01) << 8) | data[6];
+ if (pressure < 0)
+ pressure = features->pressure_max + pressure + 1;
+ input_report_abs(input, ABS_PRESSURE, pressure);
+ input_report_key(input, BTN_TOUCH, data[1] & 0x05);
+ if (!prox) /* out-prox */
+ wacom->id[0] = 0;
+ input_report_key(input, wacom->tool[0], prox);
+ input_report_abs(input, ABS_MISC, wacom->id[0]);
+ return 1;
+}
+
+static int wacom_graphire_irq(struct wacom_wac *wacom)
+{
+ struct wacom_features *features = &wacom->features;
+ unsigned char *data = wacom->data;
+ struct input_dev *input = wacom->input;
+ int prox;
+ int rw = 0;
+ int retval = 0;
+
+ if (data[0] != WACOM_REPORT_PENABLED) {
+ dbg("wacom_graphire_irq: received unknown report #%d", data[0]);
+ goto exit;
+ }
+
+ prox = data[1] & 0x80;
+ if (prox || wacom->id[0]) {
+ if (prox) {
+ switch ((data[1] >> 5) & 3) {
+
+ case 0: /* Pen */
+ wacom->tool[0] = BTN_TOOL_PEN;
+ wacom->id[0] = STYLUS_DEVICE_ID;
+ break;
+
+ case 1: /* Rubber */
+ wacom->tool[0] = BTN_TOOL_RUBBER;
+ wacom->id[0] = ERASER_DEVICE_ID;
+ break;
+
+ case 2: /* Mouse with wheel */
+ input_report_key(input, BTN_MIDDLE, data[1] & 0x04);
+ /* fall through */
+
+ case 3: /* Mouse without wheel */
+ wacom->tool[0] = BTN_TOOL_MOUSE;
+ wacom->id[0] = CURSOR_DEVICE_ID;
+ break;
+ }
+ }
+ input_report_abs(input, ABS_X, le16_to_cpup((__le16 *)&data[2]));
+ input_report_abs(input, ABS_Y, le16_to_cpup((__le16 *)&data[4]));
+ if (wacom->tool[0] != BTN_TOOL_MOUSE) {
+ input_report_abs(input, ABS_PRESSURE, data[6] | ((data[7] & 0x01) << 8));
+ input_report_key(input, BTN_TOUCH, data[1] & 0x01);
+ input_report_key(input, BTN_STYLUS, data[1] & 0x02);
+ input_report_key(input, BTN_STYLUS2, data[1] & 0x04);
+ } else {
+ input_report_key(input, BTN_LEFT, data[1] & 0x01);
+ input_report_key(input, BTN_RIGHT, data[1] & 0x02);
+ if (features->type == WACOM_G4 ||
+ features->type == WACOM_MO) {
+ input_report_abs(input, ABS_DISTANCE, data[6] & 0x3f);
+ rw = (data[7] & 0x04) - (data[7] & 0x03);
+ } else {
+ input_report_abs(input, ABS_DISTANCE, data[7] & 0x3f);
+ rw = -(signed char)data[6];
+ }
+ input_report_rel(input, REL_WHEEL, rw);
+ }
+
+ if (!prox)
+ wacom->id[0] = 0;
+ input_report_abs(input, ABS_MISC, wacom->id[0]); /* report tool id */
+ input_report_key(input, wacom->tool[0], prox);
+ input_event(input, EV_MSC, MSC_SERIAL, 1);
+ input_sync(input); /* sync last event */
+ }
+
+ /* send pad data */
+ switch (features->type) {
+ case WACOM_G4:
+ prox = data[7] & 0xf8;
+ if (prox || wacom->id[1]) {
+ wacom->id[1] = PAD_DEVICE_ID;
+ input_report_key(input, BTN_BACK, (data[7] & 0x40));
+ input_report_key(input, BTN_FORWARD, (data[7] & 0x80));
+ rw = ((data[7] & 0x18) >> 3) - ((data[7] & 0x20) >> 3);
+ input_report_rel(input, REL_WHEEL, rw);
+ if (!prox)
+ wacom->id[1] = 0;
+ input_report_abs(input, ABS_MISC, wacom->id[1]);
+ input_event(input, EV_MSC, MSC_SERIAL, 0xf0);
+ retval = 1;
+ }
+ break;
+
+ case WACOM_MO:
+ prox = (data[7] & 0xf8) || data[8];
+ if (prox || wacom->id[1]) {
+ wacom->id[1] = PAD_DEVICE_ID;
+ input_report_key(input, BTN_BACK, (data[7] & 0x08));
+ input_report_key(input, BTN_LEFT, (data[7] & 0x20));
+ input_report_key(input, BTN_FORWARD, (data[7] & 0x10));
+ input_report_key(input, BTN_RIGHT, (data[7] & 0x40));
+ input_report_abs(input, ABS_WHEEL, (data[8] & 0x7f));
+ if (!prox)
+ wacom->id[1] = 0;
+ input_report_abs(input, ABS_MISC, wacom->id[1]);
+ input_event(input, EV_MSC, MSC_SERIAL, 0xf0);
+ retval = 1;
+ }
+ break;
+ }
+exit:
+ return retval;
+}
+
+static int wacom_intuos_inout(struct wacom_wac *wacom)
+{
+ struct wacom_features *features = &wacom->features;
+ unsigned char *data = wacom->data;
+ struct input_dev *input = wacom->input;
+ int idx = 0;
+
+ /* tool number */
+ if (features->type == INTUOS)
+ idx = data[1] & 0x01;
+
+ /* Enter report */
+ if ((data[1] & 0xfc) == 0xc0) {
+ /* serial number of the tool */
+ wacom->serial[idx] = ((data[3] & 0x0f) << 28) +
+ (data[4] << 20) + (data[5] << 12) +
+ (data[6] << 4) + (data[7] >> 4);
+
+ wacom->id[idx] = (data[2] << 4) | (data[3] >> 4) |
+ ((data[7] & 0x0f) << 20) | ((data[8] & 0xf0) << 12);
+
+ switch (wacom->id[idx] & 0xfffff) {
+ case 0x812: /* Inking pen */
+ case 0x801: /* Intuos3 Inking pen */
+ case 0x20802: /* Intuos4 Inking Pen */
+ case 0x012:
+ wacom->tool[idx] = BTN_TOOL_PENCIL;
+ break;
+
+ case 0x822: /* Pen */
+ case 0x842:
+ case 0x852:
+ case 0x823: /* Intuos3 Grip Pen */
+ case 0x813: /* Intuos3 Classic Pen */
+ case 0x885: /* Intuos3 Marker Pen */
+ case 0x802: /* Intuos4 General Pen */
+ case 0x804: /* Intuos4 Marker Pen */
+ case 0x40802: /* Intuos4 Classic Pen */
+ case 0x022:
+ wacom->tool[idx] = BTN_TOOL_PEN;
+ break;
+
+ case 0x832: /* Stroke pen */
+ case 0x032:
+ wacom->tool[idx] = BTN_TOOL_BRUSH;
+ break;
+
+ case 0x007: /* Mouse 4D and 2D */
+ case 0x09c:
+ case 0x094:
+ case 0x017: /* Intuos3 2D Mouse */
+ case 0x806: /* Intuos4 Mouse */
+ wacom->tool[idx] = BTN_TOOL_MOUSE;
+ break;
+
+ case 0x096: /* Lens cursor */
+ case 0x097: /* Intuos3 Lens cursor */
+ case 0x006: /* Intuos4 Lens cursor */
+ wacom->tool[idx] = BTN_TOOL_LENS;
+ break;
+
+ case 0x82a: /* Eraser */
+ case 0x85a:
+ case 0x91a:
+ case 0xd1a:
+ case 0x0fa:
+ case 0x82b: /* Intuos3 Grip Pen Eraser */
+ case 0x81b: /* Intuos3 Classic Pen Eraser */
+ case 0x91b: /* Intuos3 Airbrush Eraser */
+ case 0x80c: /* Intuos4 Marker Pen Eraser */
+ case 0x80a: /* Intuos4 General Pen Eraser */
+ case 0x4080a: /* Intuos4 Classic Pen Eraser */
+ case 0x90a: /* Intuos4 Airbrush Eraser */
+ wacom->tool[idx] = BTN_TOOL_RUBBER;
+ break;
+
+ case 0xd12:
+ case 0x912:
+ case 0x112:
+ case 0x913: /* Intuos3 Airbrush */
+ case 0x902: /* Intuos4 Airbrush */
+ wacom->tool[idx] = BTN_TOOL_AIRBRUSH;
+ break;
+
+ default: /* Unknown tool */
+ wacom->tool[idx] = BTN_TOOL_PEN;
+ break;
+ }
+ return 1;
+ }
+
+ /* older I4 styli don't work with new Cintiqs */
+ if (!((wacom->id[idx] >> 20) & 0x01) &&
+ (features->type == WACOM_21UX2))
+ return 1;
+
+ /* Exit report */
+ if ((data[1] & 0xfe) == 0x80) {
+ /*
+ * Reset all states otherwise we lose the initial states
+ * when in-prox next time
+ */
+ input_report_abs(input, ABS_X, 0);
+ input_report_abs(input, ABS_Y, 0);
+ input_report_abs(input, ABS_DISTANCE, 0);
+ input_report_abs(input, ABS_TILT_X, 0);
+ input_report_abs(input, ABS_TILT_Y, 0);
+ if (wacom->tool[idx] >= BTN_TOOL_MOUSE) {
+ input_report_key(input, BTN_LEFT, 0);
+ input_report_key(input, BTN_MIDDLE, 0);
+ input_report_key(input, BTN_RIGHT, 0);
+ input_report_key(input, BTN_SIDE, 0);
+ input_report_key(input, BTN_EXTRA, 0);
+ input_report_abs(input, ABS_THROTTLE, 0);
+ input_report_abs(input, ABS_RZ, 0);
+ } else {
+ input_report_abs(input, ABS_PRESSURE, 0);
+ input_report_key(input, BTN_STYLUS, 0);
+ input_report_key(input, BTN_STYLUS2, 0);
+ input_report_key(input, BTN_TOUCH, 0);
+ input_report_abs(input, ABS_WHEEL, 0);
+ if (features->type >= INTUOS3S)
+ input_report_abs(input, ABS_Z, 0);
+ }
+ input_report_key(input, wacom->tool[idx], 0);
+ input_report_abs(input, ABS_MISC, 0); /* reset tool id */
+ input_event(input, EV_MSC, MSC_SERIAL, wacom->serial[idx]);
+ wacom->id[idx] = 0;
+ return 2;
+ }
+ return 0;
+}
+
+static void wacom_intuos_general(struct wacom_wac *wacom)
+{
+ struct wacom_features *features = &wacom->features;
+ unsigned char *data = wacom->data;
+ struct input_dev *input = wacom->input;
+ unsigned int t;
+
+ /* general pen packet */
+ if ((data[1] & 0xb8) == 0xa0) {
+ t = (data[6] << 2) | ((data[7] >> 6) & 3);
+ if ((features->type >= INTUOS4S && features->type <= INTUOS4L) ||
+ features->type == WACOM_21UX2) {
+ t = (t << 1) | (data[1] & 1);
+ }
+ input_report_abs(input, ABS_PRESSURE, t);
+ input_report_abs(input, ABS_TILT_X,
+ ((data[7] << 1) & 0x7e) | (data[8] >> 7));
+ input_report_abs(input, ABS_TILT_Y, data[8] & 0x7f);
+ input_report_key(input, BTN_STYLUS, data[1] & 2);
+ input_report_key(input, BTN_STYLUS2, data[1] & 4);
+ input_report_key(input, BTN_TOUCH, t > 10);
+ }
+
+ /* airbrush second packet */
+ if ((data[1] & 0xbc) == 0xb4) {
+ input_report_abs(input, ABS_WHEEL,
+ (data[6] << 2) | ((data[7] >> 6) & 3));
+ input_report_abs(input, ABS_TILT_X,
+ ((data[7] << 1) & 0x7e) | (data[8] >> 7));
+ input_report_abs(input, ABS_TILT_Y, data[8] & 0x7f);
+ }
+}
+
+static int wacom_intuos_irq(struct wacom_wac *wacom)
+{
+ struct wacom_features *features = &wacom->features;
+ unsigned char *data = wacom->data;
+ struct input_dev *input = wacom->input;
+ unsigned int t;
+ int idx = 0, result;
+
+ if (data[0] != WACOM_REPORT_PENABLED && data[0] != WACOM_REPORT_INTUOSREAD
+ && data[0] != WACOM_REPORT_INTUOSWRITE && data[0] != WACOM_REPORT_INTUOSPAD) {
+ dbg("wacom_intuos_irq: received unknown report #%d", data[0]);
+ return 0;
+ }
+
+ /* tool number */
+ if (features->type == INTUOS)
+ idx = data[1] & 0x01;
+
+ /* pad packets. Works as a second tool and is always in prox */
+ if (data[0] == WACOM_REPORT_INTUOSPAD) {
+ if (features->type >= INTUOS4S && features->type <= INTUOS4L) {
+ input_report_key(input, BTN_0, (data[2] & 0x01));
+ input_report_key(input, BTN_1, (data[3] & 0x01));
+ input_report_key(input, BTN_2, (data[3] & 0x02));
+ input_report_key(input, BTN_3, (data[3] & 0x04));
+ input_report_key(input, BTN_4, (data[3] & 0x08));
+ input_report_key(input, BTN_5, (data[3] & 0x10));
+ input_report_key(input, BTN_6, (data[3] & 0x20));
+ if (data[1] & 0x80) {
+ input_report_abs(input, ABS_WHEEL, (data[1] & 0x7f));
+ } else {
+ /* Out of proximity, clear wheel value. */
+ input_report_abs(input, ABS_WHEEL, 0);
+ }
+ if (features->type != INTUOS4S) {
+ input_report_key(input, BTN_7, (data[3] & 0x40));
+ input_report_key(input, BTN_8, (data[3] & 0x80));
+ }
+ if (data[1] | (data[2] & 0x01) | data[3]) {
+ input_report_key(input, wacom->tool[1], 1);
+ input_report_abs(input, ABS_MISC, PAD_DEVICE_ID);
+ } else {
+ input_report_key(input, wacom->tool[1], 0);
+ input_report_abs(input, ABS_MISC, 0);
+ }
+ } else {
+ if (features->type == WACOM_21UX2) {
+ input_report_key(input, BTN_0, (data[5] & 0x01));
+ input_report_key(input, BTN_1, (data[6] & 0x01));
+ input_report_key(input, BTN_2, (data[6] & 0x02));
+ input_report_key(input, BTN_3, (data[6] & 0x04));
+ input_report_key(input, BTN_4, (data[6] & 0x08));
+ input_report_key(input, BTN_5, (data[6] & 0x10));
+ input_report_key(input, BTN_6, (data[6] & 0x20));
+ input_report_key(input, BTN_7, (data[6] & 0x40));
+ input_report_key(input, BTN_8, (data[6] & 0x80));
+ input_report_key(input, BTN_9, (data[7] & 0x01));
+ input_report_key(input, BTN_A, (data[8] & 0x01));
+ input_report_key(input, BTN_B, (data[8] & 0x02));
+ input_report_key(input, BTN_C, (data[8] & 0x04));
+ input_report_key(input, BTN_X, (data[8] & 0x08));
+ input_report_key(input, BTN_Y, (data[8] & 0x10));
+ input_report_key(input, BTN_Z, (data[8] & 0x20));
+ input_report_key(input, BTN_BASE, (data[8] & 0x40));
+ input_report_key(input, BTN_BASE2, (data[8] & 0x80));
+ } else {
+ input_report_key(input, BTN_0, (data[5] & 0x01));
+ input_report_key(input, BTN_1, (data[5] & 0x02));
+ input_report_key(input, BTN_2, (data[5] & 0x04));
+ input_report_key(input, BTN_3, (data[5] & 0x08));
+ input_report_key(input, BTN_4, (data[6] & 0x01));
+ input_report_key(input, BTN_5, (data[6] & 0x02));
+ input_report_key(input, BTN_6, (data[6] & 0x04));
+ input_report_key(input, BTN_7, (data[6] & 0x08));
+ input_report_key(input, BTN_8, (data[5] & 0x10));
+ input_report_key(input, BTN_9, (data[6] & 0x10));
+ }
+ input_report_abs(input, ABS_RX, ((data[1] & 0x1f) << 8) | data[2]);
+ input_report_abs(input, ABS_RY, ((data[3] & 0x1f) << 8) | data[4]);
+
+ if ((data[5] & 0x1f) | data[6] | (data[1] & 0x1f) |
+ data[2] | (data[3] & 0x1f) | data[4] | data[8] |
+ (data[7] & 0x01)) {
+ input_report_key(input, wacom->tool[1], 1);
+ input_report_abs(input, ABS_MISC, PAD_DEVICE_ID);
+ } else {
+ input_report_key(input, wacom->tool[1], 0);
+ input_report_abs(input, ABS_MISC, 0);
+ }
+ }
+ input_event(input, EV_MSC, MSC_SERIAL, 0xffffffff);
+ return 1;
+ }
+
+ /* process in/out prox events */
+ result = wacom_intuos_inout(wacom);
+ if (result)
+ return result - 1;
+
+ /* don't proceed if we don't know the ID */
+ if (!wacom->id[idx])
+ return 0;
+
+ /* Only large Intuos support Lense Cursor */
+ if (wacom->tool[idx] == BTN_TOOL_LENS &&
+ (features->type == INTUOS3 ||
+ features->type == INTUOS3S ||
+ features->type == INTUOS4 ||
+ features->type == INTUOS4S)) {
+
+ return 0;
+ }
+
+ /* Cintiq doesn't send data when RDY bit isn't set */
+ if (features->type == CINTIQ && !(data[1] & 0x40))
+ return 0;
+
+ if (features->type >= INTUOS3S) {
+ input_report_abs(input, ABS_X, (data[2] << 9) | (data[3] << 1) | ((data[9] >> 1) & 1));
+ input_report_abs(input, ABS_Y, (data[4] << 9) | (data[5] << 1) | (data[9] & 1));
+ input_report_abs(input, ABS_DISTANCE, ((data[9] >> 2) & 0x3f));
+ } else {
+ input_report_abs(input, ABS_X, be16_to_cpup((__be16 *)&data[2]));
+ input_report_abs(input, ABS_Y, be16_to_cpup((__be16 *)&data[4]));
+ input_report_abs(input, ABS_DISTANCE, ((data[9] >> 3) & 0x1f));
+ }
+
+ /* process general packets */
+ wacom_intuos_general(wacom);
+
+ /* 4D mouse, 2D mouse, marker pen rotation, tilt mouse, or Lens cursor packets */
+ if ((data[1] & 0xbc) == 0xa8 || (data[1] & 0xbe) == 0xb0 || (data[1] & 0xbc) == 0xac) {
+
+ if (data[1] & 0x02) {
+ /* Rotation packet */
+ if (features->type >= INTUOS3S) {
+ /* I3 marker pen rotation */
+ t = (data[6] << 3) | ((data[7] >> 5) & 7);
+ t = (data[7] & 0x20) ? ((t > 900) ? ((t-1) / 2 - 1350) :
+ ((t-1) / 2 + 450)) : (450 - t / 2) ;
+ input_report_abs(input, ABS_Z, t);
+ } else {
+ /* 4D mouse rotation packet */
+ t = (data[6] << 3) | ((data[7] >> 5) & 7);
+ input_report_abs(input, ABS_RZ, (data[7] & 0x20) ?
+ ((t - 1) / 2) : -t / 2);
+ }
+
+ } else if (!(data[1] & 0x10) && features->type < INTUOS3S) {
+ /* 4D mouse packet */
+ input_report_key(input, BTN_LEFT, data[8] & 0x01);
+ input_report_key(input, BTN_MIDDLE, data[8] & 0x02);
+ input_report_key(input, BTN_RIGHT, data[8] & 0x04);
+
+ input_report_key(input, BTN_SIDE, data[8] & 0x20);
+ input_report_key(input, BTN_EXTRA, data[8] & 0x10);
+ t = (data[6] << 2) | ((data[7] >> 6) & 3);
+ input_report_abs(input, ABS_THROTTLE, (data[8] & 0x08) ? -t : t);
+
+ } else if (wacom->tool[idx] == BTN_TOOL_MOUSE) {
+ /* I4 mouse */
+ if (features->type >= INTUOS4S && features->type <= INTUOS4L) {
+ input_report_key(input, BTN_LEFT, data[6] & 0x01);
+ input_report_key(input, BTN_MIDDLE, data[6] & 0x02);
+ input_report_key(input, BTN_RIGHT, data[6] & 0x04);
+ input_report_rel(input, REL_WHEEL, ((data[7] & 0x80) >> 7)
+ - ((data[7] & 0x40) >> 6));
+ input_report_key(input, BTN_SIDE, data[6] & 0x08);
+ input_report_key(input, BTN_EXTRA, data[6] & 0x10);
+
+ input_report_abs(input, ABS_TILT_X,
+ ((data[7] << 1) & 0x7e) | (data[8] >> 7));
+ input_report_abs(input, ABS_TILT_Y, data[8] & 0x7f);
+ } else {
+ /* 2D mouse packet */
+ input_report_key(input, BTN_LEFT, data[8] & 0x04);
+ input_report_key(input, BTN_MIDDLE, data[8] & 0x08);
+ input_report_key(input, BTN_RIGHT, data[8] & 0x10);
+ input_report_rel(input, REL_WHEEL, (data[8] & 0x01)
+ - ((data[8] & 0x02) >> 1));
+
+ /* I3 2D mouse side buttons */
+ if (features->type >= INTUOS3S && features->type <= INTUOS3L) {
+ input_report_key(input, BTN_SIDE, data[8] & 0x40);
+ input_report_key(input, BTN_EXTRA, data[8] & 0x20);
+ }
+ }
+ } else if ((features->type < INTUOS3S || features->type == INTUOS3L ||
+ features->type == INTUOS4L) &&
+ wacom->tool[idx] == BTN_TOOL_LENS) {
+ /* Lens cursor packets */
+ input_report_key(input, BTN_LEFT, data[8] & 0x01);
+ input_report_key(input, BTN_MIDDLE, data[8] & 0x02);
+ input_report_key(input, BTN_RIGHT, data[8] & 0x04);
+ input_report_key(input, BTN_SIDE, data[8] & 0x10);
+ input_report_key(input, BTN_EXTRA, data[8] & 0x08);
+ }
+ }
+
+ input_report_abs(input, ABS_MISC, wacom->id[idx]); /* report tool id */
+ input_report_key(input, wacom->tool[idx], 1);
+ input_event(input, EV_MSC, MSC_SERIAL, wacom->serial[idx]);
+ return 1;
+}
+
+static int wacom_tpc_mt_touch(struct wacom_wac *wacom)
+{
+ struct input_dev *input = wacom->input;
+ unsigned char *data = wacom->data;
+ int contact_with_no_pen_down_count = 0;
+ int i;
+
+ for (i = 0; i < 2; i++) {
+ int p = data[1] & (1 << i);
+ bool touch = p && !wacom->shared->stylus_in_proximity;
+
+ input_mt_slot(input, i);
+ input_mt_report_slot_state(input, MT_TOOL_FINGER, touch);
+ if (touch) {
+ int x = le16_to_cpup((__le16 *)&data[i * 2 + 2]) & 0x7fff;
+ int y = le16_to_cpup((__le16 *)&data[i * 2 + 6]) & 0x7fff;
+
+ input_report_abs(input, ABS_MT_POSITION_X, x);
+ input_report_abs(input, ABS_MT_POSITION_Y, y);
+ contact_with_no_pen_down_count++;
+ }
+ }
+
+ /* keep touch state for pen event */
+ wacom->shared->touch_down = (contact_with_no_pen_down_count > 0);
+
+ input_mt_report_pointer_emulation(input, true);
+
+ return 1;
+}
+
+static int wacom_tpc_single_touch(struct wacom_wac *wacom, size_t len)
+{
+ char *data = wacom->data;
+ struct input_dev *input = wacom->input;
+ bool prox;
+ int x = 0, y = 0;
+
+ if (!wacom->shared->stylus_in_proximity) {
+ if (len == WACOM_PKGLEN_TPC1FG) {
+ prox = data[0] & 0x01;
+ x = get_unaligned_le16(&data[1]);
+ y = get_unaligned_le16(&data[3]);
+ } else { /* with capacity */
+ prox = data[1] & 0x01;
+ x = le16_to_cpup((__le16 *)&data[2]);
+ y = le16_to_cpup((__le16 *)&data[4]);
+ }
+ } else
+ /* force touch out when pen is in prox */
+ prox = 0;
+
+ if (prox) {
+ input_report_abs(input, ABS_X, x);
+ input_report_abs(input, ABS_Y, y);
+ }
+ input_report_key(input, BTN_TOUCH, prox);
+
+ /* keep touch state for pen events */
+ wacom->shared->touch_down = prox;
+
+ return 1;
+}
+
+static int wacom_tpc_pen(struct wacom_wac *wacom)
+{
+ struct wacom_features *features = &wacom->features;
+ char *data = wacom->data;
+ struct input_dev *input = wacom->input;
+ int pressure;
+ bool prox = data[1] & 0x20;
+
+ if (!wacom->shared->stylus_in_proximity) /* first in prox */
+ /* Going into proximity select tool */
+ wacom->tool[0] = (data[1] & 0x0c) ? BTN_TOOL_RUBBER : BTN_TOOL_PEN;
+
+ /* keep pen state for touch events */
+ wacom->shared->stylus_in_proximity = prox;
+
+ /* send pen events only when touch is up or forced out */
+ if (!wacom->shared->touch_down) {
+ input_report_key(input, BTN_STYLUS, data[1] & 0x02);
+ input_report_key(input, BTN_STYLUS2, data[1] & 0x10);
+ input_report_abs(input, ABS_X, le16_to_cpup((__le16 *)&data[2]));
+ input_report_abs(input, ABS_Y, le16_to_cpup((__le16 *)&data[4]));
+ pressure = ((data[7] & 0x01) << 8) | data[6];
+ if (pressure < 0)
+ pressure = features->pressure_max + pressure + 1;
+ input_report_abs(input, ABS_PRESSURE, pressure);
+ input_report_key(input, BTN_TOUCH, data[1] & 0x05);
+ input_report_key(input, wacom->tool[0], prox);
+ return 1;
+ }
+
+ return 0;
+}
+
+static int wacom_tpc_irq(struct wacom_wac *wacom, size_t len)
+{
+ char *data = wacom->data;
+
+ dbg("wacom_tpc_irq: received report #%d", data[0]);
+
+ if (len == WACOM_PKGLEN_TPC1FG || data[0] == WACOM_REPORT_TPC1FG)
+ return wacom_tpc_single_touch(wacom, len);
+ else if (data[0] == WACOM_REPORT_TPC2FG)
+ return wacom_tpc_mt_touch(wacom);
+ else if (data[0] == WACOM_REPORT_PENABLED)
+ return wacom_tpc_pen(wacom);
+
+ return 0;
+}
+
+static int wacom_bpt_touch(struct wacom_wac *wacom)
+{
+ struct wacom_features *features = &wacom->features;
+ struct input_dev *input = wacom->input;
+ unsigned char *data = wacom->data;
+ int i;
+
+ for (i = 0; i < 2; i++) {
+ int offset = (data[1] & 0x80) ? (8 * i) : (9 * i);
+ bool touch = data[offset + 3] & 0x80;
+
+ /*
+ * Touch events need to be disabled while stylus is
+ * in proximity because user's hand is resting on touchpad
+ * and sending unwanted events. User expects tablet buttons
+ * to continue working though.
+ */
+ touch = touch && !wacom->shared->stylus_in_proximity;
+
+ input_mt_slot(input, i);
+ input_mt_report_slot_state(input, MT_TOOL_FINGER, touch);
+ if (touch) {
+ int x = get_unaligned_be16(&data[offset + 3]) & 0x7ff;
+ int y = get_unaligned_be16(&data[offset + 5]) & 0x7ff;
+ if (features->quirks & WACOM_QUIRK_BBTOUCH_LOWRES) {
+ x <<= 5;
+ y <<= 5;
+ }
+ input_report_abs(input, ABS_MT_POSITION_X, x);
+ input_report_abs(input, ABS_MT_POSITION_Y, y);
+ }
+ }
+
+ input_mt_report_pointer_emulation(input, true);
+
+ input_report_key(input, BTN_LEFT, (data[1] & 0x08) != 0);
+ input_report_key(input, BTN_FORWARD, (data[1] & 0x04) != 0);
+ input_report_key(input, BTN_BACK, (data[1] & 0x02) != 0);
+ input_report_key(input, BTN_RIGHT, (data[1] & 0x01) != 0);
+
+ input_sync(input);
+
+ return 0;
+}
+
+static int wacom_bpt_pen(struct wacom_wac *wacom)
+{
+ struct input_dev *input = wacom->input;
+ unsigned char *data = wacom->data;
+ int prox = 0, x = 0, y = 0, p = 0, d = 0, pen = 0, btn1 = 0, btn2 = 0;
+
+ prox = (data[1] & 0x20) == 0x20;
+
+ /*
+ * All reports shared between PEN and RUBBER tool must be
+ * forced to a known starting value (zero) when transitioning to
+ * out-of-prox.
+ *
+ * If not reset then, to userspace, it will look like lost events
+ * if new tool comes in-prox with same values as previous tool sent.
+ *
+ * Hardware does report zero in most out-of-prox cases but not all.
+ */
+ if (prox) {
+ if (!wacom->shared->stylus_in_proximity) {
+ if (data[1] & 0x08) {
+ wacom->tool[0] = BTN_TOOL_RUBBER;
+ wacom->id[0] = ERASER_DEVICE_ID;
+ } else {
+ wacom->tool[0] = BTN_TOOL_PEN;
+ wacom->id[0] = STYLUS_DEVICE_ID;
+ }
+ wacom->shared->stylus_in_proximity = true;
+ }
+ x = le16_to_cpup((__le16 *)&data[2]);
+ y = le16_to_cpup((__le16 *)&data[4]);
+ p = le16_to_cpup((__le16 *)&data[6]);
+ /*
+ * Convert distance from out prox to distance from tablet.
+ * distance will be greater than distance_max once
+ * touching and applying pressure; do not report negative
+ * distance.
+ */
+ if (data[8] <= wacom->features.distance_max)
+ d = wacom->features.distance_max - data[8];
+
+ pen = data[1] & 0x01;
+ btn1 = data[1] & 0x02;
+ btn2 = data[1] & 0x04;
+ }
+
+ input_report_key(input, BTN_TOUCH, pen);
+ input_report_key(input, BTN_STYLUS, btn1);
+ input_report_key(input, BTN_STYLUS2, btn2);
+
+ input_report_abs(input, ABS_X, x);
+ input_report_abs(input, ABS_Y, y);
+ input_report_abs(input, ABS_PRESSURE, p);
+ input_report_abs(input, ABS_DISTANCE, d);
+
+ if (!prox) {
+ wacom->id[0] = 0;
+ wacom->shared->stylus_in_proximity = false;
+ }
+
+ input_report_key(input, wacom->tool[0], prox); /* PEN or RUBBER */
+ input_report_abs(input, ABS_MISC, wacom->id[0]); /* TOOL ID */
+
+ return 1;
+}
+
+static int wacom_bpt_irq(struct wacom_wac *wacom, size_t len)
+{
+ if (len == WACOM_PKGLEN_BBTOUCH)
+ return wacom_bpt_touch(wacom);
+ else if (len == WACOM_PKGLEN_BBFUN)
+ return wacom_bpt_pen(wacom);
+
+ return 0;
+}
+
+void wacom_wac_irq(struct wacom_wac *wacom_wac, size_t len)
+{
+ bool sync;
+
+ switch (wacom_wac->features.type) {
+ case PENPARTNER:
+ sync = wacom_penpartner_irq(wacom_wac);
+ break;
+
+ case PL:
+ sync = wacom_pl_irq(wacom_wac);
+ break;
+
+ case WACOM_G4:
+ case GRAPHIRE:
+ case WACOM_MO:
+ sync = wacom_graphire_irq(wacom_wac);
+ break;
+
+ case PTU:
+ sync = wacom_ptu_irq(wacom_wac);
+ break;
+
+ case DTU:
+ sync = wacom_dtu_irq(wacom_wac);
+ break;
+
+ case INTUOS:
+ case INTUOS3S:
+ case INTUOS3:
+ case INTUOS3L:
+ case INTUOS4S:
+ case INTUOS4:
+ case INTUOS4L:
+ case CINTIQ:
+ case WACOM_BEE:
+ case WACOM_21UX2:
+ sync = wacom_intuos_irq(wacom_wac);
+ break;
+
+ case TABLETPC:
+ case TABLETPC2FG:
+ sync = wacom_tpc_irq(wacom_wac, len);
+ break;
+
+ case BAMBOO_PT:
+ sync = wacom_bpt_irq(wacom_wac, len);
+ break;
+
+ default:
+ sync = false;
+ break;
+ }
+
+ if (sync)
+ input_sync(wacom_wac->input);
+}
+
+static void wacom_setup_cintiq(struct wacom_wac *wacom_wac)
+{
+ struct input_dev *input_dev = wacom_wac->input;
+
+ input_set_capability(input_dev, EV_MSC, MSC_SERIAL);
+
+ __set_bit(BTN_TOOL_RUBBER, input_dev->keybit);
+ __set_bit(BTN_TOOL_PEN, input_dev->keybit);
+ __set_bit(BTN_TOOL_BRUSH, input_dev->keybit);
+ __set_bit(BTN_TOOL_PENCIL, input_dev->keybit);
+ __set_bit(BTN_TOOL_AIRBRUSH, input_dev->keybit);
+ __set_bit(BTN_STYLUS, input_dev->keybit);
+ __set_bit(BTN_STYLUS2, input_dev->keybit);
+
+ input_set_abs_params(input_dev, ABS_DISTANCE,
+ 0, wacom_wac->features.distance_max, 0, 0);
+ input_set_abs_params(input_dev, ABS_WHEEL, 0, 1023, 0, 0);
+ input_set_abs_params(input_dev, ABS_TILT_X, 0, 127, 0, 0);
+ input_set_abs_params(input_dev, ABS_TILT_Y, 0, 127, 0, 0);
+}
+
+static void wacom_setup_intuos(struct wacom_wac *wacom_wac)
+{
+ struct input_dev *input_dev = wacom_wac->input;
+
+ input_set_capability(input_dev, EV_REL, REL_WHEEL);
+
+ wacom_setup_cintiq(wacom_wac);
+
+ __set_bit(BTN_LEFT, input_dev->keybit);
+ __set_bit(BTN_RIGHT, input_dev->keybit);
+ __set_bit(BTN_MIDDLE, input_dev->keybit);
+ __set_bit(BTN_SIDE, input_dev->keybit);
+ __set_bit(BTN_EXTRA, input_dev->keybit);
+ __set_bit(BTN_TOOL_MOUSE, input_dev->keybit);
+ __set_bit(BTN_TOOL_LENS, input_dev->keybit);
+
+ input_set_abs_params(input_dev, ABS_RZ, -900, 899, 0, 0);
+ input_set_abs_params(input_dev, ABS_THROTTLE, -1023, 1023, 0, 0);
+}
+
+void wacom_setup_device_quirks(struct wacom_features *features)
+{
+
+ /* touch device found but size is not defined. use default */
+ if (features->device_type == BTN_TOOL_FINGER && !features->x_max) {
+ features->x_max = 1023;
+ features->y_max = 1023;
+ }
+
+ /* these device have multiple inputs */
+ if (features->type == TABLETPC || features->type == TABLETPC2FG ||
+ features->type == BAMBOO_PT)
+ features->quirks |= WACOM_QUIRK_MULTI_INPUT;
+
+ /* quirks for bamboo touch */
+ if (features->type == BAMBOO_PT &&
+ features->device_type == BTN_TOOL_DOUBLETAP) {
+ features->x_max <<= 5;
+ features->y_max <<= 5;
+ features->x_fuzz <<= 5;
+ features->y_fuzz <<= 5;
+ features->quirks |= WACOM_QUIRK_BBTOUCH_LOWRES;
+ }
+}
+
+static unsigned int wacom_calculate_touch_res(unsigned int logical_max,
+ unsigned int physical_max)
+{
+ /* Touch physical dimensions are in 100th of mm */
+ return (logical_max * 100) / physical_max;
+}
+
+void wacom_setup_input_capabilities(struct input_dev *input_dev,
+ struct wacom_wac *wacom_wac)
+{
+ struct wacom_features *features = &wacom_wac->features;
+ int i;
+
+ input_dev->evbit[0] |= BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
+
+ __set_bit(BTN_TOUCH, input_dev->keybit);
+
+ input_set_abs_params(input_dev, ABS_X, 0, features->x_max,
+ features->x_fuzz, 0);
+ input_set_abs_params(input_dev, ABS_Y, 0, features->y_max,
+ features->y_fuzz, 0);
+
+ if (features->device_type == BTN_TOOL_PEN) {
+ input_set_abs_params(input_dev, ABS_PRESSURE, 0, features->pressure_max,
+ features->pressure_fuzz, 0);
+
+ /* penabled devices have fixed resolution for each model */
+ input_abs_set_res(input_dev, ABS_X, features->x_resolution);
+ input_abs_set_res(input_dev, ABS_Y, features->y_resolution);
+ } else {
+ input_abs_set_res(input_dev, ABS_X,
+ wacom_calculate_touch_res(features->x_max,
+ features->x_phy));
+ input_abs_set_res(input_dev, ABS_Y,
+ wacom_calculate_touch_res(features->y_max,
+ features->y_phy));
+ }
+
+ __set_bit(ABS_MISC, input_dev->absbit);
+
+ switch (wacom_wac->features.type) {
+ case WACOM_MO:
+ input_set_abs_params(input_dev, ABS_WHEEL, 0, 71, 0, 0);
+ /* fall through */
+
+ case WACOM_G4:
+ input_set_capability(input_dev, EV_MSC, MSC_SERIAL);
+
+ __set_bit(BTN_BACK, input_dev->keybit);
+ __set_bit(BTN_FORWARD, input_dev->keybit);
+ /* fall through */
+
+ case GRAPHIRE:
+ input_set_capability(input_dev, EV_REL, REL_WHEEL);
+
+ __set_bit(BTN_LEFT, input_dev->keybit);
+ __set_bit(BTN_RIGHT, input_dev->keybit);
+ __set_bit(BTN_MIDDLE, input_dev->keybit);
+
+ __set_bit(BTN_TOOL_RUBBER, input_dev->keybit);
+ __set_bit(BTN_TOOL_PEN, input_dev->keybit);
+ __set_bit(BTN_TOOL_MOUSE, input_dev->keybit);
+ __set_bit(BTN_STYLUS, input_dev->keybit);
+ __set_bit(BTN_STYLUS2, input_dev->keybit);
+
+ __set_bit(INPUT_PROP_POINTER, input_dev->propbit);
+ break;
+
+ case WACOM_21UX2:
+ __set_bit(BTN_A, input_dev->keybit);
+ __set_bit(BTN_B, input_dev->keybit);
+ __set_bit(BTN_C, input_dev->keybit);
+ __set_bit(BTN_X, input_dev->keybit);
+ __set_bit(BTN_Y, input_dev->keybit);
+ __set_bit(BTN_Z, input_dev->keybit);
+ __set_bit(BTN_BASE, input_dev->keybit);
+ __set_bit(BTN_BASE2, input_dev->keybit);
+ /* fall through */
+
+ case WACOM_BEE:
+ __set_bit(BTN_8, input_dev->keybit);
+ __set_bit(BTN_9, input_dev->keybit);
+ /* fall through */
+
+ case CINTIQ:
+ for (i = 0; i < 8; i++)
+ __set_bit(BTN_0 + i, input_dev->keybit);
+
+ input_set_abs_params(input_dev, ABS_RX, 0, 4096, 0, 0);
+ input_set_abs_params(input_dev, ABS_RY, 0, 4096, 0, 0);
+ input_set_abs_params(input_dev, ABS_Z, -900, 899, 0, 0);
+
+ __set_bit(INPUT_PROP_DIRECT, input_dev->propbit);
+
+ wacom_setup_cintiq(wacom_wac);
+ break;
+
+ case INTUOS3:
+ case INTUOS3L:
+ __set_bit(BTN_4, input_dev->keybit);
+ __set_bit(BTN_5, input_dev->keybit);
+ __set_bit(BTN_6, input_dev->keybit);
+ __set_bit(BTN_7, input_dev->keybit);
+
+ input_set_abs_params(input_dev, ABS_RY, 0, 4096, 0, 0);
+ /* fall through */
+
+ case INTUOS3S:
+ __set_bit(BTN_0, input_dev->keybit);
+ __set_bit(BTN_1, input_dev->keybit);
+ __set_bit(BTN_2, input_dev->keybit);
+ __set_bit(BTN_3, input_dev->keybit);
+
+ input_set_abs_params(input_dev, ABS_RX, 0, 4096, 0, 0);
+ input_set_abs_params(input_dev, ABS_Z, -900, 899, 0, 0);
+ /* fall through */
+
+ case INTUOS:
+ __set_bit(INPUT_PROP_POINTER, input_dev->propbit);
+
+ wacom_setup_intuos(wacom_wac);
+ break;
+
+ case INTUOS4:
+ case INTUOS4L:
+ __set_bit(BTN_7, input_dev->keybit);
+ __set_bit(BTN_8, input_dev->keybit);
+ /* fall through */
+
+ case INTUOS4S:
+ for (i = 0; i < 7; i++)
+ __set_bit(BTN_0 + i, input_dev->keybit);
+
+ input_set_abs_params(input_dev, ABS_Z, -900, 899, 0, 0);
+ wacom_setup_intuos(wacom_wac);
+
+ __set_bit(INPUT_PROP_POINTER, input_dev->propbit);
+ break;
+
+ case TABLETPC2FG:
+ if (features->device_type == BTN_TOOL_DOUBLETAP) {
+
+ input_mt_init_slots(input_dev, 2);
+ input_set_abs_params(input_dev, ABS_MT_TOOL_TYPE,
+ 0, MT_TOOL_MAX, 0, 0);
+ input_set_abs_params(input_dev, ABS_MT_POSITION_X,
+ 0, features->x_max, 0, 0);
+ input_set_abs_params(input_dev, ABS_MT_POSITION_Y,
+ 0, features->y_max, 0, 0);
+ }
+ /* fall through */
+
+ case TABLETPC:
+ __clear_bit(ABS_MISC, input_dev->absbit);
+
+ __set_bit(INPUT_PROP_DIRECT, input_dev->propbit);
+
+ if (features->device_type != BTN_TOOL_PEN)
+ break; /* no need to process stylus stuff */
+
+ /* fall through */
+
+ case PL:
+ case DTU:
+ __set_bit(BTN_TOOL_PEN, input_dev->keybit);
+ __set_bit(BTN_TOOL_RUBBER, input_dev->keybit);
+ __set_bit(BTN_STYLUS, input_dev->keybit);
+ __set_bit(BTN_STYLUS2, input_dev->keybit);
+
+ __set_bit(INPUT_PROP_DIRECT, input_dev->propbit);
+ break;
+
+ case PTU:
+ __set_bit(BTN_STYLUS2, input_dev->keybit);
+ /* fall through */
+
+ case PENPARTNER:
+ __set_bit(BTN_TOOL_PEN, input_dev->keybit);
+ __set_bit(BTN_TOOL_RUBBER, input_dev->keybit);
+ __set_bit(BTN_STYLUS, input_dev->keybit);
+
+ __set_bit(INPUT_PROP_POINTER, input_dev->propbit);
+ break;
+
+ case BAMBOO_PT:
+ __clear_bit(ABS_MISC, input_dev->absbit);
+
+ __set_bit(INPUT_PROP_POINTER, input_dev->propbit);
+
+ if (features->device_type == BTN_TOOL_DOUBLETAP) {
+ __set_bit(BTN_LEFT, input_dev->keybit);
+ __set_bit(BTN_FORWARD, input_dev->keybit);
+ __set_bit(BTN_BACK, input_dev->keybit);
+ __set_bit(BTN_RIGHT, input_dev->keybit);
+
+ __set_bit(BTN_TOOL_FINGER, input_dev->keybit);
+ __set_bit(BTN_TOOL_DOUBLETAP, input_dev->keybit);
+
+ input_mt_init_slots(input_dev, 2);
+ input_set_abs_params(input_dev, ABS_MT_POSITION_X,
+ 0, features->x_max,
+ features->x_fuzz, 0);
+ input_set_abs_params(input_dev, ABS_MT_POSITION_Y,
+ 0, features->y_max,
+ features->y_fuzz, 0);
+ } else if (features->device_type == BTN_TOOL_PEN) {
+ __set_bit(BTN_TOOL_RUBBER, input_dev->keybit);
+ __set_bit(BTN_TOOL_PEN, input_dev->keybit);
+ __set_bit(BTN_STYLUS, input_dev->keybit);
+ __set_bit(BTN_STYLUS2, input_dev->keybit);
+ input_set_abs_params(input_dev, ABS_DISTANCE, 0,
+ features->distance_max,
+ 0, 0);
+ }
+ break;
+ }
+}
+
+static const struct wacom_features wacom_features_0x00 =
+ { "Wacom Penpartner", WACOM_PKGLEN_PENPRTN, 5040, 3780, 255,
+ 0, PENPARTNER, WACOM_PENPRTN_RES, WACOM_PENPRTN_RES };
+static const struct wacom_features wacom_features_0x10 =
+ { "Wacom Graphire", WACOM_PKGLEN_GRAPHIRE, 10206, 7422, 511,
+ 63, GRAPHIRE, WACOM_GRAPHIRE_RES, WACOM_GRAPHIRE_RES };
+static const struct wacom_features wacom_features_0x11 =
+ { "Wacom Graphire2 4x5", WACOM_PKGLEN_GRAPHIRE, 10206, 7422, 511,
+ 63, GRAPHIRE, WACOM_GRAPHIRE_RES, WACOM_GRAPHIRE_RES };
+static const struct wacom_features wacom_features_0x12 =
+ { "Wacom Graphire2 5x7", WACOM_PKGLEN_GRAPHIRE, 13918, 10206, 511,
+ 63, GRAPHIRE, WACOM_GRAPHIRE_RES, WACOM_GRAPHIRE_RES };
+static const struct wacom_features wacom_features_0x13 =
+ { "Wacom Graphire3", WACOM_PKGLEN_GRAPHIRE, 10208, 7424, 511,
+ 63, GRAPHIRE, WACOM_GRAPHIRE_RES, WACOM_GRAPHIRE_RES };
+static const struct wacom_features wacom_features_0x14 =
+ { "Wacom Graphire3 6x8", WACOM_PKGLEN_GRAPHIRE, 16704, 12064, 511,
+ 63, GRAPHIRE, WACOM_GRAPHIRE_RES, WACOM_GRAPHIRE_RES };
+static const struct wacom_features wacom_features_0x15 =
+ { "Wacom Graphire4 4x5", WACOM_PKGLEN_GRAPHIRE, 10208, 7424, 511,
+ 63, WACOM_G4, WACOM_GRAPHIRE_RES, WACOM_GRAPHIRE_RES };
+static const struct wacom_features wacom_features_0x16 =
+ { "Wacom Graphire4 6x8", WACOM_PKGLEN_GRAPHIRE, 16704, 12064, 511,
+ 63, WACOM_G4, WACOM_GRAPHIRE_RES, WACOM_GRAPHIRE_RES };
+static const struct wacom_features wacom_features_0x17 =
+ { "Wacom BambooFun 4x5", WACOM_PKGLEN_BBFUN, 14760, 9225, 511,
+ 63, WACOM_MO, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
+static const struct wacom_features wacom_features_0x18 =
+ { "Wacom BambooFun 6x8", WACOM_PKGLEN_BBFUN, 21648, 13530, 511,
+ 63, WACOM_MO, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
+static const struct wacom_features wacom_features_0x19 =
+ { "Wacom Bamboo1 Medium", WACOM_PKGLEN_GRAPHIRE, 16704, 12064, 511,
+ 63, GRAPHIRE, WACOM_GRAPHIRE_RES, WACOM_GRAPHIRE_RES };
+static const struct wacom_features wacom_features_0x60 =
+ { "Wacom Volito", WACOM_PKGLEN_GRAPHIRE, 5104, 3712, 511,
+ 63, GRAPHIRE, WACOM_VOLITO_RES, WACOM_VOLITO_RES };
+static const struct wacom_features wacom_features_0x61 =
+ { "Wacom PenStation2", WACOM_PKGLEN_GRAPHIRE, 3250, 2320, 255,
+ 63, GRAPHIRE, WACOM_VOLITO_RES, WACOM_VOLITO_RES };
+static const struct wacom_features wacom_features_0x62 =
+ { "Wacom Volito2 4x5", WACOM_PKGLEN_GRAPHIRE, 5104, 3712, 511,
+ 63, GRAPHIRE, WACOM_VOLITO_RES, WACOM_VOLITO_RES };
+static const struct wacom_features wacom_features_0x63 =
+ { "Wacom Volito2 2x3", WACOM_PKGLEN_GRAPHIRE, 3248, 2320, 511,
+ 63, GRAPHIRE, WACOM_VOLITO_RES, WACOM_VOLITO_RES };
+static const struct wacom_features wacom_features_0x64 =
+ { "Wacom PenPartner2", WACOM_PKGLEN_GRAPHIRE, 3250, 2320, 511,
+ 63, GRAPHIRE, WACOM_VOLITO_RES, WACOM_VOLITO_RES };
+static const struct wacom_features wacom_features_0x65 =
+ { "Wacom Bamboo", WACOM_PKGLEN_BBFUN, 14760, 9225, 511,
+ 63, WACOM_MO, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
+static const struct wacom_features wacom_features_0x69 =
+ { "Wacom Bamboo1", WACOM_PKGLEN_GRAPHIRE, 5104, 3712, 511,
+ 63, GRAPHIRE, WACOM_PENPRTN_RES, WACOM_PENPRTN_RES };
+static const struct wacom_features wacom_features_0x6A =
+ { "Wacom Bamboo1 4x6", WACOM_PKGLEN_GRAPHIRE, 14760, 9225, 1023,
+ 63, GRAPHIRE, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
+static const struct wacom_features wacom_features_0x6B =
+ { "Wacom Bamboo1 5x8", WACOM_PKGLEN_GRAPHIRE, 21648, 13530, 1023,
+ 63, GRAPHIRE, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
+static const struct wacom_features wacom_features_0x20 =
+ { "Wacom Intuos 4x5", WACOM_PKGLEN_INTUOS, 12700, 10600, 1023,
+ 31, INTUOS, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
+static const struct wacom_features wacom_features_0x21 =
+ { "Wacom Intuos 6x8", WACOM_PKGLEN_INTUOS, 20320, 16240, 1023,
+ 31, INTUOS, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
+static const struct wacom_features wacom_features_0x22 =
+ { "Wacom Intuos 9x12", WACOM_PKGLEN_INTUOS, 30480, 24060, 1023,
+ 31, INTUOS, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
+static const struct wacom_features wacom_features_0x23 =
+ { "Wacom Intuos 12x12", WACOM_PKGLEN_INTUOS, 30480, 31680, 1023,
+ 31, INTUOS, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
+static const struct wacom_features wacom_features_0x24 =
+ { "Wacom Intuos 12x18", WACOM_PKGLEN_INTUOS, 45720, 31680, 1023,
+ 31, INTUOS, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
+static const struct wacom_features wacom_features_0x30 =
+ { "Wacom PL400", WACOM_PKGLEN_GRAPHIRE, 5408, 4056, 255,
+ 0, PL, WACOM_PL_RES, WACOM_PL_RES };
+static const struct wacom_features wacom_features_0x31 =
+ { "Wacom PL500", WACOM_PKGLEN_GRAPHIRE, 6144, 4608, 255,
+ 0, PL, WACOM_PL_RES, WACOM_PL_RES };
+static const struct wacom_features wacom_features_0x32 =
+ { "Wacom PL600", WACOM_PKGLEN_GRAPHIRE, 6126, 4604, 255,
+ 0, PL, WACOM_PL_RES, WACOM_PL_RES };
+static const struct wacom_features wacom_features_0x33 =
+ { "Wacom PL600SX", WACOM_PKGLEN_GRAPHIRE, 6260, 5016, 255,
+ 0, PL, WACOM_PL_RES, WACOM_PL_RES };
+static const struct wacom_features wacom_features_0x34 =
+ { "Wacom PL550", WACOM_PKGLEN_GRAPHIRE, 6144, 4608, 511,
+ 0, PL, WACOM_PL_RES, WACOM_PL_RES };
+static const struct wacom_features wacom_features_0x35 =
+ { "Wacom PL800", WACOM_PKGLEN_GRAPHIRE, 7220, 5780, 511,
+ 0, PL, WACOM_PL_RES, WACOM_PL_RES };
+static const struct wacom_features wacom_features_0x37 =
+ { "Wacom PL700", WACOM_PKGLEN_GRAPHIRE, 6758, 5406, 511,
+ 0, PL, WACOM_PL_RES, WACOM_PL_RES };
+static const struct wacom_features wacom_features_0x38 =
+ { "Wacom PL510", WACOM_PKGLEN_GRAPHIRE, 6282, 4762, 511,
+ 0, PL, WACOM_PL_RES, WACOM_PL_RES };
+static const struct wacom_features wacom_features_0x39 =
+ { "Wacom DTU710", WACOM_PKGLEN_GRAPHIRE, 34080, 27660, 511,
+ 0, PL, WACOM_PL_RES, WACOM_PL_RES };
+static const struct wacom_features wacom_features_0xC4 =
+ { "Wacom DTF521", WACOM_PKGLEN_GRAPHIRE, 6282, 4762, 511,
+ 0, PL, WACOM_PL_RES, WACOM_PL_RES };
+static const struct wacom_features wacom_features_0xC0 =
+ { "Wacom DTF720", WACOM_PKGLEN_GRAPHIRE, 6858, 5506, 511,
+ 0, PL, WACOM_PL_RES, WACOM_PL_RES };
+static const struct wacom_features wacom_features_0xC2 =
+ { "Wacom DTF720a", WACOM_PKGLEN_GRAPHIRE, 6858, 5506, 511,
+ 0, PL, WACOM_PL_RES, WACOM_PL_RES };
+static const struct wacom_features wacom_features_0x03 =
+ { "Wacom Cintiq Partner", WACOM_PKGLEN_GRAPHIRE, 20480, 15360, 511,
+ 0, PTU, WACOM_PL_RES, WACOM_PL_RES };
+static const struct wacom_features wacom_features_0x41 =
+ { "Wacom Intuos2 4x5", WACOM_PKGLEN_INTUOS, 12700, 10600, 1023,
+ 31, INTUOS, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
+static const struct wacom_features wacom_features_0x42 =
+ { "Wacom Intuos2 6x8", WACOM_PKGLEN_INTUOS, 20320, 16240, 1023,
+ 31, INTUOS, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
+static const struct wacom_features wacom_features_0x43 =
+ { "Wacom Intuos2 9x12", WACOM_PKGLEN_INTUOS, 30480, 24060, 1023,
+ 31, INTUOS, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
+static const struct wacom_features wacom_features_0x44 =
+ { "Wacom Intuos2 12x12", WACOM_PKGLEN_INTUOS, 30480, 31680, 1023,
+ 31, INTUOS, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
+static const struct wacom_features wacom_features_0x45 =
+ { "Wacom Intuos2 12x18", WACOM_PKGLEN_INTUOS, 45720, 31680, 1023,
+ 31, INTUOS, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
+static const struct wacom_features wacom_features_0xB0 =
+ { "Wacom Intuos3 4x5", WACOM_PKGLEN_INTUOS, 25400, 20320, 1023,
+ 63, INTUOS3S, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES };
+static const struct wacom_features wacom_features_0xB1 =
+ { "Wacom Intuos3 6x8", WACOM_PKGLEN_INTUOS, 40640, 30480, 1023,
+ 63, INTUOS3, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES };
+static const struct wacom_features wacom_features_0xB2 =
+ { "Wacom Intuos3 9x12", WACOM_PKGLEN_INTUOS, 60960, 45720, 1023,
+ 63, INTUOS3, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES };
+static const struct wacom_features wacom_features_0xB3 =
+ { "Wacom Intuos3 12x12", WACOM_PKGLEN_INTUOS, 60960, 60960, 1023,
+ 63, INTUOS3L, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES };
+static const struct wacom_features wacom_features_0xB4 =
+ { "Wacom Intuos3 12x19", WACOM_PKGLEN_INTUOS, 97536, 60960, 1023,
+ 63, INTUOS3L, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES };
+static const struct wacom_features wacom_features_0xB5 =
+ { "Wacom Intuos3 6x11", WACOM_PKGLEN_INTUOS, 54204, 31750, 1023,
+ 63, INTUOS3, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES };
+static const struct wacom_features wacom_features_0xB7 =
+ { "Wacom Intuos3 4x6", WACOM_PKGLEN_INTUOS, 31496, 19685, 1023,
+ 63, INTUOS3S, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES };
+static const struct wacom_features wacom_features_0xB8 =
+ { "Wacom Intuos4 4x6", WACOM_PKGLEN_INTUOS, 31496, 19685, 2047,
+ 63, INTUOS4S, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES };
+static const struct wacom_features wacom_features_0xB9 =
+ { "Wacom Intuos4 6x9", WACOM_PKGLEN_INTUOS, 44704, 27940, 2047,
+ 63, INTUOS4, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES };
+static const struct wacom_features wacom_features_0xBA =
+ { "Wacom Intuos4 8x13", WACOM_PKGLEN_INTUOS, 65024, 40640, 2047,
+ 63, INTUOS4L, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES };
+static const struct wacom_features wacom_features_0xBB =
+ { "Wacom Intuos4 12x19", WACOM_PKGLEN_INTUOS, 97536, 60960, 2047,
+ 63, INTUOS4L, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES };
+static const struct wacom_features wacom_features_0xBC =
+ { "Wacom Intuos4 WL", WACOM_PKGLEN_INTUOS, 40840, 25400, 2047,
+ 63, INTUOS4, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES };
+static const struct wacom_features wacom_features_0x3F =
+ { "Wacom Cintiq 21UX", WACOM_PKGLEN_INTUOS, 87200, 65600, 1023,
+ 63, CINTIQ, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES };
+static const struct wacom_features wacom_features_0xC5 =
+ { "Wacom Cintiq 20WSX", WACOM_PKGLEN_INTUOS, 86680, 54180, 1023,
+ 63, WACOM_BEE, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES };
+static const struct wacom_features wacom_features_0xC6 =
+ { "Wacom Cintiq 12WX", WACOM_PKGLEN_INTUOS, 53020, 33440, 1023,
+ 63, WACOM_BEE, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES };
+static const struct wacom_features wacom_features_0xC7 =
+ { "Wacom DTU1931", WACOM_PKGLEN_GRAPHIRE, 37832, 30305, 511,
+ 0, PL, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
+static const struct wacom_features wacom_features_0xCE =
+ { "Wacom DTU2231", WACOM_PKGLEN_GRAPHIRE, 47864, 27011, 511,
+ 0, DTU, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
+static const struct wacom_features wacom_features_0xF0 =
+ { "Wacom DTU1631", WACOM_PKGLEN_GRAPHIRE, 34623, 19553, 511,
+ 0, DTU, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
+static const struct wacom_features wacom_features_0xCC =
+ { "Wacom Cintiq 21UX2", WACOM_PKGLEN_INTUOS, 87200, 65600, 2047,
+ 63, WACOM_21UX2, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES };
+static const struct wacom_features wacom_features_0x90 =
+ { "Wacom ISDv4 90", WACOM_PKGLEN_GRAPHIRE, 26202, 16325, 255,
+ 0, TABLETPC, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
+static const struct wacom_features wacom_features_0x93 =
+ { "Wacom ISDv4 93", WACOM_PKGLEN_GRAPHIRE, 26202, 16325, 255,
+ 0, TABLETPC, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
+static const struct wacom_features wacom_features_0x97 =
+ { "Wacom ISDv4 97", WACOM_PKGLEN_GRAPHIRE, 26202, 16325, 511,
+ 0, TABLETPC, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
+static const struct wacom_features wacom_features_0x9A =
+ { "Wacom ISDv4 9A", WACOM_PKGLEN_GRAPHIRE, 26202, 16325, 255,
+ 0, TABLETPC, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
+static const struct wacom_features wacom_features_0x9F =
+ { "Wacom ISDv4 9F", WACOM_PKGLEN_GRAPHIRE, 26202, 16325, 255,
+ 0, TABLETPC, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
+static const struct wacom_features wacom_features_0xE2 =
+ { "Wacom ISDv4 E2", WACOM_PKGLEN_TPC2FG, 26202, 16325, 255,
+ 0, TABLETPC2FG, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
+static const struct wacom_features wacom_features_0xE3 =
+ { "Wacom ISDv4 E3", WACOM_PKGLEN_TPC2FG, 26202, 16325, 255,
+ 0, TABLETPC2FG, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
+static const struct wacom_features wacom_features_0xE6 =
+ { "Wacom ISDv4 E6", WACOM_PKGLEN_TPC2FG, 27760, 15694, 255,
+ 0, TABLETPC2FG, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
+static const struct wacom_features wacom_features_0xEC =
+ { "Wacom ISDv4 EC", WACOM_PKGLEN_GRAPHIRE, 25710, 14500, 255,
+ 0, TABLETPC, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
+static const struct wacom_features wacom_features_0x47 =
+ { "Wacom Intuos2 6x8", WACOM_PKGLEN_INTUOS, 20320, 16240, 1023,
+ 31, INTUOS, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
+static const struct wacom_features wacom_features_0xD0 =
+ { "Wacom Bamboo 2FG", WACOM_PKGLEN_BBFUN, 14720, 9200, 1023,
+ 31, BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
+static const struct wacom_features wacom_features_0xD1 =
+ { "Wacom Bamboo 2FG 4x5", WACOM_PKGLEN_BBFUN, 14720, 9200, 1023,
+ 31, BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
+static const struct wacom_features wacom_features_0xD2 =
+ { "Wacom Bamboo Craft", WACOM_PKGLEN_BBFUN, 14720, 9200, 1023,
+ 31, BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
+static const struct wacom_features wacom_features_0xD3 =
+ { "Wacom Bamboo 2FG 6x8", WACOM_PKGLEN_BBFUN, 21648, 13700, 1023,
+ 31, BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
+static const struct wacom_features wacom_features_0xD4 =
+ { "Wacom Bamboo Pen", WACOM_PKGLEN_BBFUN, 14720, 9200, 1023,
+ 31, BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
+static const struct wacom_features wacom_features_0xD5 =
+ { "Wacom Bamboo Pen 6x8", WACOM_PKGLEN_BBFUN, 21648, 13700, 1023,
+ 31, BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
+static const struct wacom_features wacom_features_0xD6 =
+ { "Wacom BambooPT 2FG 4x5", WACOM_PKGLEN_BBFUN, 14720, 9200, 1023,
+ 31, BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
+static const struct wacom_features wacom_features_0xD7 =
+ { "Wacom BambooPT 2FG Small", WACOM_PKGLEN_BBFUN, 14720, 9200, 1023,
+ 31, BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
+static const struct wacom_features wacom_features_0xD8 =
+ { "Wacom Bamboo Comic 2FG", WACOM_PKGLEN_BBFUN, 21648, 13700, 1023,
+ 31, BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
+static const struct wacom_features wacom_features_0xDA =
+ { "Wacom Bamboo 2FG 4x5 SE", WACOM_PKGLEN_BBFUN, 14720, 9200, 1023,
+ 31, BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
+static struct wacom_features wacom_features_0xDB =
+ { "Wacom Bamboo 2FG 6x8 SE", WACOM_PKGLEN_BBFUN, 21648, 13700, 1023,
+ 31, BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
+static const struct wacom_features wacom_features_0x6004 =
+ { "ISD-V4", WACOM_PKGLEN_GRAPHIRE, 12800, 8000, 255,
+ 0, TABLETPC, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
+
+#define USB_DEVICE_WACOM(prod) \
+ USB_DEVICE(USB_VENDOR_ID_WACOM, prod), \
+ .driver_info = (kernel_ulong_t)&wacom_features_##prod
+
+#define USB_DEVICE_DETAILED(prod, class, sub, proto) \
+ USB_DEVICE_AND_INTERFACE_INFO(USB_VENDOR_ID_WACOM, prod, class, \
+ sub, proto), \
+ .driver_info = (kernel_ulong_t)&wacom_features_##prod
+
+#define USB_DEVICE_LENOVO(prod) \
+ USB_DEVICE(USB_VENDOR_ID_LENOVO, prod), \
+ .driver_info = (kernel_ulong_t)&wacom_features_##prod
+
+const struct usb_device_id wacom_ids[] = {
+ { USB_DEVICE_WACOM(0x00) },
+ { USB_DEVICE_WACOM(0x10) },
+ { USB_DEVICE_WACOM(0x11) },
+ { USB_DEVICE_WACOM(0x12) },
+ { USB_DEVICE_WACOM(0x13) },
+ { USB_DEVICE_WACOM(0x14) },
+ { USB_DEVICE_WACOM(0x15) },
+ { USB_DEVICE_WACOM(0x16) },
+ { USB_DEVICE_WACOM(0x17) },
+ { USB_DEVICE_WACOM(0x18) },
+ { USB_DEVICE_WACOM(0x19) },
+ { USB_DEVICE_WACOM(0x60) },
+ { USB_DEVICE_WACOM(0x61) },
+ { USB_DEVICE_WACOM(0x62) },
+ { USB_DEVICE_WACOM(0x63) },
+ { USB_DEVICE_WACOM(0x64) },
+ { USB_DEVICE_WACOM(0x65) },
+ { USB_DEVICE_WACOM(0x69) },
+ { USB_DEVICE_WACOM(0x6A) },
+ { USB_DEVICE_WACOM(0x6B) },
+ { USB_DEVICE_WACOM(0x20) },
+ { USB_DEVICE_WACOM(0x21) },
+ { USB_DEVICE_WACOM(0x22) },
+ { USB_DEVICE_WACOM(0x23) },
+ { USB_DEVICE_WACOM(0x24) },
+ { USB_DEVICE_WACOM(0x30) },
+ { USB_DEVICE_WACOM(0x31) },
+ { USB_DEVICE_WACOM(0x32) },
+ { USB_DEVICE_WACOM(0x33) },
+ { USB_DEVICE_WACOM(0x34) },
+ { USB_DEVICE_WACOM(0x35) },
+ { USB_DEVICE_WACOM(0x37) },
+ { USB_DEVICE_WACOM(0x38) },
+ { USB_DEVICE_WACOM(0x39) },
+ { USB_DEVICE_WACOM(0xC4) },
+ { USB_DEVICE_WACOM(0xC0) },
+ { USB_DEVICE_WACOM(0xC2) },
+ { USB_DEVICE_WACOM(0x03) },
+ { USB_DEVICE_WACOM(0x41) },
+ { USB_DEVICE_WACOM(0x42) },
+ { USB_DEVICE_WACOM(0x43) },
+ { USB_DEVICE_WACOM(0x44) },
+ { USB_DEVICE_WACOM(0x45) },
+ { USB_DEVICE_WACOM(0xB0) },
+ { USB_DEVICE_WACOM(0xB1) },
+ { USB_DEVICE_WACOM(0xB2) },
+ { USB_DEVICE_WACOM(0xB3) },
+ { USB_DEVICE_WACOM(0xB4) },
+ { USB_DEVICE_WACOM(0xB5) },
+ { USB_DEVICE_WACOM(0xB7) },
+ { USB_DEVICE_WACOM(0xB8) },
+ { USB_DEVICE_WACOM(0xB9) },
+ { USB_DEVICE_WACOM(0xBA) },
+ { USB_DEVICE_WACOM(0xBB) },
+ { USB_DEVICE_WACOM(0xBC) },
+ { USB_DEVICE_WACOM(0x3F) },
+ { USB_DEVICE_WACOM(0xC5) },
+ { USB_DEVICE_WACOM(0xC6) },
+ { USB_DEVICE_WACOM(0xC7) },
+ /*
+ * DTU-2231 has two interfaces on the same configuration,
+ * only one is used.
+ */
+ { USB_DEVICE_DETAILED(0xCE, USB_CLASS_HID,
+ USB_INTERFACE_SUBCLASS_BOOT,
+ USB_INTERFACE_PROTOCOL_MOUSE) },
+ { USB_DEVICE_WACOM(0xD0) },
+ { USB_DEVICE_WACOM(0xD1) },
+ { USB_DEVICE_WACOM(0xD2) },
+ { USB_DEVICE_WACOM(0xD3) },
+ { USB_DEVICE_WACOM(0xD4) },
+ { USB_DEVICE_WACOM(0xD5) },
+ { USB_DEVICE_WACOM(0xD6) },
+ { USB_DEVICE_WACOM(0xD7) },
+ { USB_DEVICE_WACOM(0xD8) },
+ { USB_DEVICE_WACOM(0xDA) },
+ { USB_DEVICE_WACOM(0xDB) },
+ { USB_DEVICE_WACOM(0xF0) },
+ { USB_DEVICE_WACOM(0xCC) },
+ { USB_DEVICE_WACOM(0x90) },
+ { USB_DEVICE_WACOM(0x93) },
+ { USB_DEVICE_WACOM(0x97) },
+ { USB_DEVICE_WACOM(0x9A) },
+ { USB_DEVICE_WACOM(0x9F) },
+ { USB_DEVICE_WACOM(0xE2) },
+ { USB_DEVICE_WACOM(0xE3) },
+ { USB_DEVICE_WACOM(0xE6) },
+ { USB_DEVICE_WACOM(0xEC) },
+ { USB_DEVICE_WACOM(0x47) },
+ { USB_DEVICE_LENOVO(0x6004) },
+ { }
+};
+MODULE_DEVICE_TABLE(usb, wacom_ids);
diff --git a/drivers/input/tablet/wacom_wac.h b/drivers/input/tablet/wacom_wac.h
new file mode 100644
index 0000000..53eb71b
--- /dev/null
+++ b/drivers/input/tablet/wacom_wac.h
@@ -0,0 +1,107 @@
+/*
+ * drivers/input/tablet/wacom_wac.h
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+#ifndef WACOM_WAC_H
+#define WACOM_WAC_H
+
+#include <linux/types.h>
+
+/* maximum packet length for USB devices */
+#define WACOM_PKGLEN_MAX 32
+
+/* packet length for individual models */
+#define WACOM_PKGLEN_PENPRTN 7
+#define WACOM_PKGLEN_GRAPHIRE 8
+#define WACOM_PKGLEN_BBFUN 9
+#define WACOM_PKGLEN_INTUOS 10
+#define WACOM_PKGLEN_TPC1FG 5
+#define WACOM_PKGLEN_TPC2FG 14
+#define WACOM_PKGLEN_BBTOUCH 20
+
+/* device IDs */
+#define STYLUS_DEVICE_ID 0x02
+#define TOUCH_DEVICE_ID 0x03
+#define CURSOR_DEVICE_ID 0x06
+#define ERASER_DEVICE_ID 0x0A
+#define PAD_DEVICE_ID 0x0F
+
+/* wacom data packet report IDs */
+#define WACOM_REPORT_PENABLED 2
+#define WACOM_REPORT_INTUOSREAD 5
+#define WACOM_REPORT_INTUOSWRITE 6
+#define WACOM_REPORT_INTUOSPAD 12
+#define WACOM_REPORT_TPC1FG 6
+#define WACOM_REPORT_TPC2FG 13
+
+/* device quirks */
+#define WACOM_QUIRK_MULTI_INPUT 0x0001
+#define WACOM_QUIRK_BBTOUCH_LOWRES 0x0002
+
+enum {
+ PENPARTNER = 0,
+ GRAPHIRE,
+ WACOM_G4,
+ PTU,
+ PL,
+ DTU,
+ BAMBOO_PT,
+ INTUOS,
+ INTUOS3S,
+ INTUOS3,
+ INTUOS3L,
+ INTUOS4S,
+ INTUOS4,
+ INTUOS4L,
+ WACOM_21UX2,
+ CINTIQ,
+ WACOM_BEE,
+ WACOM_MO,
+ TABLETPC,
+ TABLETPC2FG,
+ MAX_TYPE
+};
+
+struct wacom_features {
+ const char *name;
+ int pktlen;
+ int x_max;
+ int y_max;
+ int pressure_max;
+ int distance_max;
+ int type;
+ int x_resolution;
+ int y_resolution;
+ int device_type;
+ int x_phy;
+ int y_phy;
+ unsigned char unit;
+ unsigned char unitExpo;
+ int x_fuzz;
+ int y_fuzz;
+ int pressure_fuzz;
+ int distance_fuzz;
+ unsigned quirks;
+};
+
+struct wacom_shared {
+ bool stylus_in_proximity;
+ bool touch_down;
+};
+
+struct wacom_wac {
+ char name[64];
+ unsigned char *data;
+ int tool[2];
+ int id[2];
+ __u32 serial[2];
+ struct wacom_features features;
+ struct wacom_shared *shared;
+ struct input_dev *input;
+};
+
+#endif
diff --git a/drivers/input/touchscreen/88pm860x-ts.c b/drivers/input/touchscreen/88pm860x-ts.c
new file mode 100644
index 0000000..b3aebc2
--- /dev/null
+++ b/drivers/input/touchscreen/88pm860x-ts.c
@@ -0,0 +1,237 @@
+/*
+ * Touchscreen driver for Marvell 88PM860x
+ *
+ * Copyright (C) 2009 Marvell International Ltd.
+ * Haojian Zhuang <haojian.zhuang@marvell.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/i2c.h>
+#include <linux/input.h>
+#include <linux/mfd/88pm860x.h>
+#include <linux/slab.h>
+
+#define MEAS_LEN (8)
+#define ACCURATE_BIT (12)
+
+/* touch register */
+#define MEAS_EN3 (0x52)
+
+#define MEAS_TSIX_1 (0x8D)
+#define MEAS_TSIX_2 (0x8E)
+#define MEAS_TSIY_1 (0x8F)
+#define MEAS_TSIY_2 (0x90)
+#define MEAS_TSIZ1_1 (0x91)
+#define MEAS_TSIZ1_2 (0x92)
+#define MEAS_TSIZ2_1 (0x93)
+#define MEAS_TSIZ2_2 (0x94)
+
+/* bit definitions of touch */
+#define MEAS_PD_EN (1 << 3)
+#define MEAS_TSIX_EN (1 << 4)
+#define MEAS_TSIY_EN (1 << 5)
+#define MEAS_TSIZ1_EN (1 << 6)
+#define MEAS_TSIZ2_EN (1 << 7)
+
+struct pm860x_touch {
+ struct input_dev *idev;
+ struct i2c_client *i2c;
+ struct pm860x_chip *chip;
+ int irq;
+ int res_x; /* resistor of Xplate */
+};
+
+static irqreturn_t pm860x_touch_handler(int irq, void *data)
+{
+ struct pm860x_touch *touch = data;
+ struct pm860x_chip *chip = touch->chip;
+ unsigned char buf[MEAS_LEN];
+ int x, y, pen_down;
+ int z1, z2, rt = 0;
+ int ret;
+
+ ret = pm860x_bulk_read(touch->i2c, MEAS_TSIX_1, MEAS_LEN, buf);
+ if (ret < 0)
+ goto out;
+
+ pen_down = buf[1] & (1 << 6);
+ x = ((buf[0] & 0xFF) << 4) | (buf[1] & 0x0F);
+ y = ((buf[2] & 0xFF) << 4) | (buf[3] & 0x0F);
+ z1 = ((buf[4] & 0xFF) << 4) | (buf[5] & 0x0F);
+ z2 = ((buf[6] & 0xFF) << 4) | (buf[7] & 0x0F);
+
+ if (pen_down) {
+ if ((x != 0) && (z1 != 0) && (touch->res_x != 0)) {
+ rt = z2 / z1 - 1;
+ rt = (rt * touch->res_x * x) >> ACCURATE_BIT;
+ dev_dbg(chip->dev, "z1:%d, z2:%d, rt:%d\n",
+ z1, z2, rt);
+ }
+ input_report_abs(touch->idev, ABS_X, x);
+ input_report_abs(touch->idev, ABS_Y, y);
+ input_report_abs(touch->idev, ABS_PRESSURE, rt);
+ input_report_key(touch->idev, BTN_TOUCH, 1);
+ dev_dbg(chip->dev, "pen down at [%d, %d].\n", x, y);
+ } else {
+ input_report_abs(touch->idev, ABS_PRESSURE, 0);
+ input_report_key(touch->idev, BTN_TOUCH, 0);
+ dev_dbg(chip->dev, "pen release\n");
+ }
+ input_sync(touch->idev);
+
+out:
+ return IRQ_HANDLED;
+}
+
+static int pm860x_touch_open(struct input_dev *dev)
+{
+ struct pm860x_touch *touch = input_get_drvdata(dev);
+ int data, ret;
+
+ data = MEAS_PD_EN | MEAS_TSIX_EN | MEAS_TSIY_EN
+ | MEAS_TSIZ1_EN | MEAS_TSIZ2_EN;
+ ret = pm860x_set_bits(touch->i2c, MEAS_EN3, data, data);
+ if (ret < 0)
+ goto out;
+ return 0;
+out:
+ return ret;
+}
+
+static void pm860x_touch_close(struct input_dev *dev)
+{
+ struct pm860x_touch *touch = input_get_drvdata(dev);
+ int data;
+
+ data = MEAS_PD_EN | MEAS_TSIX_EN | MEAS_TSIY_EN
+ | MEAS_TSIZ1_EN | MEAS_TSIZ2_EN;
+ pm860x_set_bits(touch->i2c, MEAS_EN3, data, 0);
+}
+
+static int __devinit pm860x_touch_probe(struct platform_device *pdev)
+{
+ struct pm860x_chip *chip = dev_get_drvdata(pdev->dev.parent);
+ struct pm860x_platform_data *pm860x_pdata = \
+ pdev->dev.parent->platform_data;
+ struct pm860x_touch_pdata *pdata = NULL;
+ struct pm860x_touch *touch;
+ int irq, ret;
+
+ irq = platform_get_irq(pdev, 0);
+ if (irq < 0) {
+ dev_err(&pdev->dev, "No IRQ resource!\n");
+ return -EINVAL;
+ }
+
+ if (!pm860x_pdata) {
+ dev_err(&pdev->dev, "platform data is missing\n");
+ return -EINVAL;
+ }
+
+ pdata = pm860x_pdata->touch;
+ if (!pdata) {
+ dev_err(&pdev->dev, "touchscreen data is missing\n");
+ return -EINVAL;
+ }
+
+ touch = kzalloc(sizeof(struct pm860x_touch), GFP_KERNEL);
+ if (touch == NULL)
+ return -ENOMEM;
+ dev_set_drvdata(&pdev->dev, touch);
+
+ touch->idev = input_allocate_device();
+ if (touch->idev == NULL) {
+ dev_err(&pdev->dev, "Failed to allocate input device!\n");
+ ret = -ENOMEM;
+ goto out;
+ }
+
+ touch->idev->name = "88pm860x-touch";
+ touch->idev->phys = "88pm860x/input0";
+ touch->idev->id.bustype = BUS_I2C;
+ touch->idev->dev.parent = &pdev->dev;
+ touch->idev->open = pm860x_touch_open;
+ touch->idev->close = pm860x_touch_close;
+ touch->chip = chip;
+ touch->i2c = (chip->id == CHIP_PM8607) ? chip->client : chip->companion;
+ touch->irq = irq + chip->irq_base;
+ touch->res_x = pdata->res_x;
+ input_set_drvdata(touch->idev, touch);
+
+ ret = request_threaded_irq(touch->irq, NULL, pm860x_touch_handler,
+ IRQF_ONESHOT, "touch", touch);
+ if (ret < 0)
+ goto out_irq;
+
+ __set_bit(EV_ABS, touch->idev->evbit);
+ __set_bit(ABS_X, touch->idev->absbit);
+ __set_bit(ABS_Y, touch->idev->absbit);
+ __set_bit(ABS_PRESSURE, touch->idev->absbit);
+ __set_bit(EV_SYN, touch->idev->evbit);
+ __set_bit(EV_KEY, touch->idev->evbit);
+ __set_bit(BTN_TOUCH, touch->idev->keybit);
+
+ input_set_abs_params(touch->idev, ABS_X, 0, 1 << ACCURATE_BIT, 0, 0);
+ input_set_abs_params(touch->idev, ABS_Y, 0, 1 << ACCURATE_BIT, 0, 0);
+ input_set_abs_params(touch->idev, ABS_PRESSURE, 0, 1 << ACCURATE_BIT,
+ 0, 0);
+
+ ret = input_register_device(touch->idev);
+ if (ret < 0) {
+ dev_err(chip->dev, "Failed to register touch!\n");
+ goto out_rg;
+ }
+
+ platform_set_drvdata(pdev, touch);
+ return 0;
+out_rg:
+ free_irq(touch->irq, touch);
+out_irq:
+ input_free_device(touch->idev);
+out:
+ kfree(touch);
+ return ret;
+}
+
+static int __devexit pm860x_touch_remove(struct platform_device *pdev)
+{
+ struct pm860x_touch *touch = platform_get_drvdata(pdev);
+
+ input_unregister_device(touch->idev);
+ free_irq(touch->irq, touch);
+ platform_set_drvdata(pdev, NULL);
+ kfree(touch);
+ return 0;
+}
+
+static struct platform_driver pm860x_touch_driver = {
+ .driver = {
+ .name = "88pm860x-touch",
+ .owner = THIS_MODULE,
+ },
+ .probe = pm860x_touch_probe,
+ .remove = __devexit_p(pm860x_touch_remove),
+};
+
+static int __init pm860x_touch_init(void)
+{
+ return platform_driver_register(&pm860x_touch_driver);
+}
+module_init(pm860x_touch_init);
+
+static void __exit pm860x_touch_exit(void)
+{
+ platform_driver_unregister(&pm860x_touch_driver);
+}
+module_exit(pm860x_touch_exit);
+
+MODULE_DESCRIPTION("Touchscreen driver for Marvell Semiconductor 88PM860x");
+MODULE_AUTHOR("Haojian Zhuang <haojian.zhuang@marvell.com>");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:88pm860x-touch");
+
diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig
new file mode 100644
index 0000000..3488ffe
--- /dev/null
+++ b/drivers/input/touchscreen/Kconfig
@@ -0,0 +1,741 @@
+#
+# Touchscreen driver configuration
+#
+menuconfig INPUT_TOUCHSCREEN
+ bool "Touchscreens"
+ help
+ Say Y here, and a list of supported touchscreens will be displayed.
+ This option doesn't affect the kernel.
+
+ If unsure, say Y.
+
+if INPUT_TOUCHSCREEN
+
+config TOUCHSCREEN_88PM860X
+ tristate "Marvell 88PM860x touchscreen"
+ depends on MFD_88PM860X
+ help
+ Say Y here if you have a 88PM860x PMIC and want to enable
+ support for the built-in touchscreen.
+
+ If unsure, say N.
+
+ To compile this driver as a module, choose M here: the
+ module will be called 88pm860x-ts.
+
+config TOUCHSCREEN_ADS7846
+ tristate "ADS7846/TSC2046/AD7873 and AD(S)7843 based touchscreens"
+ depends on SPI_MASTER
+ depends on HWMON = n || HWMON
+ help
+ Say Y here if you have a touchscreen interface using the
+ ADS7846/TSC2046/AD7873 or ADS7843/AD7843 controller,
+ and your board-specific setup code includes that in its
+ table of SPI devices.
+
+ If HWMON is selected, and the driver is told the reference voltage
+ on your board, you will also get hwmon interfaces for the voltage
+ (and on ads7846/tsc2046/ad7873, temperature) sensors of this chip.
+
+ If unsure, say N (but it's safe to say "Y").
+
+ To compile this driver as a module, choose M here: the
+ module will be called ads7846.
+
+config TOUCHSCREEN_AD7877
+ tristate "AD7877 based touchscreens"
+ depends on SPI_MASTER
+ help
+ Say Y here if you have a touchscreen interface using the
+ AD7877 controller, and your board-specific initialization
+ code includes that in its table of SPI devices.
+
+ If unsure, say N (but it's safe to say "Y").
+
+ To compile this driver as a module, choose M here: the
+ module will be called ad7877.
+
+config TOUCHSCREEN_AD7879
+ tristate "Analog Devices AD7879-1/AD7889-1 touchscreen interface"
+ help
+ Say Y here if you want to support a touchscreen interface using
+ the AD7879-1/AD7889-1 controller.
+
+ You should select a bus connection too.
+
+ To compile this driver as a module, choose M here: the
+ module will be called ad7879.
+
+config TOUCHSCREEN_AD7879_I2C
+ tristate "support I2C bus connection"
+ depends on TOUCHSCREEN_AD7879 && I2C
+ help
+ Say Y here if you have AD7879-1/AD7889-1 hooked to an I2C bus.
+
+ To compile this driver as a module, choose M here: the
+ module will be called ad7879-i2c.
+
+config TOUCHSCREEN_AD7879_SPI
+ tristate "support SPI bus connection"
+ depends on TOUCHSCREEN_AD7879 && SPI_MASTER
+ help
+ Say Y here if you have AD7879-1/AD7889-1 hooked to a SPI bus.
+
+ If unsure, say N (but it's safe to say "Y").
+
+ To compile this driver as a module, choose M here: the
+ module will be called ad7879-spi.
+
+config TOUCHSCREEN_ATMEL_MXT
+ tristate "Atmel mXT I2C Touchscreen"
+ depends on I2C
+ help
+ Say Y here if you have Atmel mXT series I2C touchscreen,
+ such as AT42QT602240/ATMXT224, connected to your system.
+
+ If unsure, say N.
+
+ To compile this driver as a module, choose M here: the
+ module will be called atmel_mxt_ts.
+
+config TOUCHSCREEN_BITSY
+ tristate "Compaq iPAQ H3600 (Bitsy) touchscreen"
+ depends on SA1100_BITSY
+ select SERIO
+ help
+ Say Y here if you have the h3600 (Bitsy) touchscreen.
+
+ If unsure, say N.
+
+ To compile this driver as a module, choose M here: the
+ module will be called h3600_ts_input.
+
+config TOUCHSCREEN_BU21013
+ tristate "BU21013 based touch panel controllers"
+ depends on I2C
+ help
+ Say Y here if you have a bu21013 touchscreen connected to
+ your system.
+
+ If unsure, say N.
+
+ To compile this driver as a module, choose M here: the
+ module will be called bu21013_ts.
+
+config TOUCHSCREEN_CY8CTMG110
+ tristate "cy8ctmg110 touchscreen"
+ depends on I2C
+ depends on GPIOLIB
+
+ help
+ Say Y here if you have a cy8ctmg110 capacitive touchscreen on
+ an AAVA device.
+
+ If unsure, say N.
+
+ To compile this driver as a module, choose M here: the
+ module will be called cy8ctmg110_ts.
+
+config TOUCHSCREEN_DA9034
+ tristate "Touchscreen support for Dialog Semiconductor DA9034"
+ depends on PMIC_DA903X
+ default y
+ help
+ Say Y here to enable the support for the touchscreen found
+ on Dialog Semiconductor DA9034 PMIC.
+
+config TOUCHSCREEN_DYNAPRO
+ tristate "Dynapro serial touchscreen"
+ select SERIO
+ help
+ Say Y here if you have a Dynapro serial touchscreen connected to
+ your system.
+
+ If unsure, say N.
+
+ To compile this driver as a module, choose M here: the
+ module will be called dynapro.
+
+config TOUCHSCREEN_HAMPSHIRE
+ tristate "Hampshire serial touchscreen"
+ select SERIO
+ help
+ Say Y here if you have a Hampshire serial touchscreen connected to
+ your system.
+
+ If unsure, say N.
+
+ To compile this driver as a module, choose M here: the
+ module will be called hampshire.
+
+config TOUCHSCREEN_EETI
+ tristate "EETI touchscreen panel support"
+ depends on I2C
+ help
+ Say Y here to enable support for I2C connected EETI touch panels.
+
+ To compile this driver as a module, choose M here: the
+ module will be called eeti_ts.
+
+config TOUCHSCREEN_FUJITSU
+ tristate "Fujitsu serial touchscreen"
+ select SERIO
+ help
+ Say Y here if you have the Fujitsu touchscreen (such as one
+ installed in Lifebook P series laptop) connected to your
+ system.
+
+ If unsure, say N.
+
+ To compile this driver as a module, choose M here: the
+ module will be called fujitsu-ts.
+
+config TOUCHSCREEN_S3C2410
+ tristate "Samsung S3C2410/generic touchscreen input driver"
+ depends on ARCH_S3C2410 || SAMSUNG_DEV_TS
+ select S3C_ADC
+ help
+ Say Y here if you have the s3c2410 touchscreen.
+
+ If unsure, say N.
+
+ To compile this driver as a module, choose M here: the
+ module will be called s3c2410_ts.
+
+config TOUCHSCREEN_GUNZE
+ tristate "Gunze AHL-51S touchscreen"
+ select SERIO
+ help
+ Say Y here if you have the Gunze AHL-51 touchscreen connected to
+ your system.
+
+ If unsure, say N.
+
+ To compile this driver as a module, choose M here: the
+ module will be called gunze.
+
+config TOUCHSCREEN_ELO
+ tristate "Elo serial touchscreens"
+ select SERIO
+ help
+ Say Y here if you have an Elo serial touchscreen connected to
+ your system.
+
+ If unsure, say N.
+
+ To compile this driver as a module, choose M here: the
+ module will be called elo.
+
+config TOUCHSCREEN_WACOM_W8001
+ tristate "Wacom W8001 penabled serial touchscreen"
+ select SERIO
+ help
+ Say Y here if you have an Wacom W8001 penabled serial touchscreen
+ connected to your system.
+
+ If unsure, say N.
+
+ To compile this driver as a module, choose M here: the
+ module will be called wacom_w8001.
+
+config TOUCHSCREEN_LPC32XX
+ tristate "LPC32XX touchscreen controller"
+ depends on ARCH_LPC32XX
+ help
+ Say Y here if you have a LPC32XX device and want
+ to support the built-in touchscreen.
+
+ To compile this driver as a module, choose M here: the
+ module will be called lpc32xx_ts.
+
+config TOUCHSCREEN_MAX11801
+ tristate "MAX11801 based touchscreens"
+ depends on I2C
+ help
+ Say Y here if you have a MAX11801 based touchscreen
+ controller.
+
+ If unsure, say N.
+
+ To compile this driver as a module, choose M here: the
+ module will be called max11801_ts.
+
+config TOUCHSCREEN_MCS5000
+ tristate "MELFAS MCS-5000 touchscreen"
+ depends on I2C
+ help
+ Say Y here if you have the MELFAS MCS-5000 touchscreen controller
+ chip in your system.
+
+ If unsure, say N.
+
+ To compile this driver as a module, choose M here: the
+ module will be called mcs5000_ts.
+
+config TOUCHSCREEN_MTOUCH
+ tristate "MicroTouch serial touchscreens"
+ select SERIO
+ help
+ Say Y here if you have a MicroTouch (3M) serial touchscreen connected to
+ your system.
+
+ If unsure, say N.
+
+ To compile this driver as a module, choose M here: the
+ module will be called mtouch.
+
+config TOUCHSCREEN_INEXIO
+ tristate "iNexio serial touchscreens"
+ select SERIO
+ help
+ Say Y here if you have an iNexio serial touchscreen connected to
+ your system.
+
+ If unsure, say N.
+
+ To compile this driver as a module, choose M here: the
+ module will be called inexio.
+
+config TOUCHSCREEN_INTEL_MID
+ tristate "Intel MID platform resistive touchscreen"
+ depends on INTEL_SCU_IPC
+ help
+ Say Y here if you have a Intel MID based touchscreen in
+ your system.
+
+ If unsure, say N.
+
+ To compile this driver as a module, choose M here: the
+ module will be called intel_mid_touch.
+
+config TOUCHSCREEN_MK712
+ tristate "ICS MicroClock MK712 touchscreen"
+ help
+ Say Y here if you have the ICS MicroClock MK712 touchscreen
+ controller chip in your system.
+
+ If unsure, say N.
+
+ To compile this driver as a module, choose M here: the
+ module will be called mk712.
+
+config TOUCHSCREEN_HP600
+ tristate "HP Jornada 6xx touchscreen"
+ depends on SH_HP6XX && SH_ADC
+ help
+ Say Y here if you have a HP Jornada 620/660/680/690 and want to
+ support the built-in touchscreen.
+
+ To compile this driver as a module, choose M here: the
+ module will be called hp680_ts_input.
+
+config TOUCHSCREEN_HP7XX
+ tristate "HP Jornada 7xx touchscreen"
+ depends on SA1100_JORNADA720_SSP
+ help
+ Say Y here if you have a HP Jornada 710/720/728 and want
+ to support the built-in touchscreen.
+
+ To compile this driver as a module, choose M here: the
+ module will be called jornada720_ts.
+
+config TOUCHSCREEN_HTCPEN
+ tristate "HTC Shift X9500 touchscreen"
+ depends on ISA
+ help
+ Say Y here if you have an HTC Shift UMPC also known as HTC X9500
+ Clio / Shangrila and want to support the built-in touchscreen.
+
+ If unsure, say N.
+
+ To compile this driver as a module, choose M here: the
+ module will be called htcpen.
+
+config TOUCHSCREEN_PENMOUNT
+ tristate "Penmount serial touchscreen"
+ select SERIO
+ help
+ Say Y here if you have a Penmount serial touchscreen connected to
+ your system.
+
+ If unsure, say N.
+
+ To compile this driver as a module, choose M here: the
+ module will be called penmount.
+
+config TOUCHSCREEN_MIGOR
+ tristate "Renesas MIGO-R touchscreen"
+ depends on SH_MIGOR && I2C
+ help
+ Say Y here to enable MIGO-R touchscreen support.
+
+ If unsure, say N.
+
+ To compile this driver as a module, choose M here: the
+ module will be called migor_ts.
+
+config TOUCHSCREEN_TNETV107X
+ tristate "TI TNETV107X touchscreen support"
+ depends on ARCH_DAVINCI_TNETV107X
+ help
+ Say Y here if you want to use the TNETV107X touchscreen.
+
+ To compile this driver as a module, choose M here: the
+ module will be called tnetv107x-ts.
+
+config TOUCHSCREEN_TOUCHRIGHT
+ tristate "Touchright serial touchscreen"
+ select SERIO
+ help
+ Say Y here if you have a Touchright serial touchscreen connected to
+ your system.
+
+ If unsure, say N.
+
+ To compile this driver as a module, choose M here: the
+ module will be called touchright.
+
+config TOUCHSCREEN_TOUCHWIN
+ tristate "Touchwin serial touchscreen"
+ select SERIO
+ help
+ Say Y here if you have a Touchwin serial touchscreen connected to
+ your system.
+
+ If unsure, say N.
+
+ To compile this driver as a module, choose M here: the
+ module will be called touchwin.
+
+config TOUCHSCREEN_ATMEL_TSADCC
+ tristate "Atmel Touchscreen Interface"
+ depends on ARCH_AT91SAM9RL || ARCH_AT91SAM9G45
+ help
+ Say Y here if you have a 4-wire touchscreen connected to the
+ ADC Controller on your Atmel SoC (such as the AT91SAM9RL).
+
+ If unsure, say N.
+
+ To compile this driver as a module, choose M here: the
+ module will be called atmel_tsadcc.
+
+config TOUCHSCREEN_UCB1400
+ tristate "Philips UCB1400 touchscreen"
+ depends on AC97_BUS
+ depends on UCB1400_CORE
+ help
+ This enables support for the Philips UCB1400 touchscreen interface.
+ The UCB1400 is an AC97 audio codec. The touchscreen interface
+ will be initialized only after the ALSA subsystem has been
+ brought up and the UCB1400 detected. You therefore have to
+ configure ALSA support as well (either built-in or modular,
+ independently of whether this driver is itself built-in or
+ modular) for this driver to work.
+
+ To compile this driver as a module, choose M here: the
+ module will be called ucb1400_ts.
+
+config TOUCHSCREEN_WM831X
+ tristate "Support for WM831x touchscreen controllers"
+ depends on MFD_WM831X
+ help
+ This enables support for the touchscreen controller on the WM831x
+ series of PMICs.
+
+ To compile this driver as a module, choose M here: the
+ module will be called wm831x-ts.
+
+config TOUCHSCREEN_WM97XX
+ tristate "Support for WM97xx AC97 touchscreen controllers"
+ depends on AC97_BUS
+ help
+ Say Y here if you have a Wolfson Microelectronics WM97xx
+ touchscreen connected to your system. Note that this option
+ only enables core driver, you will also need to select
+ support for appropriate chip below.
+
+ If unsure, say N.
+
+ To compile this driver as a module, choose M here: the
+ module will be called wm97xx-ts.
+
+config TOUCHSCREEN_WM9705
+ bool "WM9705 Touchscreen interface support"
+ depends on TOUCHSCREEN_WM97XX
+ default y
+ help
+ Say Y here to enable support for the Wolfson Microelectronics
+ WM9705 touchscreen controller.
+
+config TOUCHSCREEN_WM9712
+ bool "WM9712 Touchscreen interface support"
+ depends on TOUCHSCREEN_WM97XX
+ default y
+ help
+ Say Y here to enable support for the Wolfson Microelectronics
+ WM9712 touchscreen controller.
+
+config TOUCHSCREEN_WM9713
+ bool "WM9713 Touchscreen interface support"
+ depends on TOUCHSCREEN_WM97XX
+ default y
+ help
+ Say Y here to enable support for the Wolfson Microelectronics
+ WM9713 touchscreen controller.
+
+config TOUCHSCREEN_WM97XX_ATMEL
+ tristate "WM97xx Atmel accelerated touch"
+ depends on TOUCHSCREEN_WM97XX && (AVR32 || ARCH_AT91)
+ help
+ Say Y here for support for streaming mode with WM97xx touchscreens
+ on Atmel AT91 or AVR32 systems with an AC97C module.
+
+ Be aware that this will use channel B in the controller for
+ streaming data, this must not conflict with other AC97C drivers.
+
+ If unsure, say N.
+
+ To compile this driver as a module, choose M here: the module will
+ be called atmel-wm97xx.
+
+config TOUCHSCREEN_WM97XX_MAINSTONE
+ tristate "WM97xx Mainstone/Palm accelerated touch"
+ depends on TOUCHSCREEN_WM97XX && ARCH_PXA
+ help
+ Say Y here for support for streaming mode with WM97xx touchscreens
+ on Mainstone, Palm Tungsten T5, TX and LifeDrive systems.
+
+ If unsure, say N.
+
+ To compile this driver as a module, choose M here: the
+ module will be called mainstone-wm97xx.
+
+config TOUCHSCREEN_WM97XX_ZYLONITE
+ tristate "Zylonite accelerated touch"
+ depends on TOUCHSCREEN_WM97XX && MACH_ZYLONITE
+ select TOUCHSCREEN_WM9713
+ help
+ Say Y here for support for streaming mode with the touchscreen
+ on Zylonite systems.
+
+ If unsure, say N.
+
+ To compile this driver as a module, choose M here: the
+ module will be called zylonite-wm97xx.
+
+config TOUCHSCREEN_USB_COMPOSITE
+ tristate "USB Touchscreen Driver"
+ depends on USB_ARCH_HAS_HCD
+ select USB
+ help
+ USB Touchscreen driver for:
+ - eGalax Touchkit USB (also includes eTurboTouch CT-410/510/700)
+ - PanJit TouchSet USB
+ - 3M MicroTouch USB (EX II series)
+ - ITM
+ - some other eTurboTouch
+ - Gunze AHL61
+ - DMC TSC-10/25
+ - IRTOUCHSYSTEMS/UNITOP
+ - IdealTEK URTC1000
+ - GoTop Super_Q2/GogoPen/PenPower tablets
+ - JASTEC USB Touch Controller/DigiTech DTR-02U
+ - Zytronic controllers
+
+ Have a look at <http://linux.chapter7.ch/touchkit/> for
+ a usage description and the required user-space stuff.
+
+ To compile this driver as a module, choose M here: the
+ module will be called usbtouchscreen.
+
+config TOUCHSCREEN_MC13783
+ tristate "Freescale MC13783 touchscreen input driver"
+ depends on MFD_MC13783
+ help
+ Say Y here if you have an Freescale MC13783 PMIC on your
+ board and want to use its touchscreen
+
+ If unsure, say N.
+
+ To compile this driver as a module, choose M here: the
+ module will be called mc13783_ts.
+
+config TOUCHSCREEN_USB_EGALAX
+ default y
+ bool "eGalax, eTurboTouch CT-410/510/700 device support" if EXPERT
+ depends on TOUCHSCREEN_USB_COMPOSITE
+
+config TOUCHSCREEN_USB_PANJIT
+ default y
+ bool "PanJit device support" if EXPERT
+ depends on TOUCHSCREEN_USB_COMPOSITE
+
+config TOUCHSCREEN_USB_3M
+ default y
+ bool "3M/Microtouch EX II series device support" if EXPERT
+ depends on TOUCHSCREEN_USB_COMPOSITE
+
+config TOUCHSCREEN_USB_ITM
+ default y
+ bool "ITM device support" if EXPERT
+ depends on TOUCHSCREEN_USB_COMPOSITE
+
+config TOUCHSCREEN_USB_ETURBO
+ default y
+ bool "eTurboTouch (non-eGalax compatible) device support" if EXPERT
+ depends on TOUCHSCREEN_USB_COMPOSITE
+
+config TOUCHSCREEN_USB_GUNZE
+ default y
+ bool "Gunze AHL61 device support" if EXPERT
+ depends on TOUCHSCREEN_USB_COMPOSITE
+
+config TOUCHSCREEN_USB_DMC_TSC10
+ default y
+ bool "DMC TSC-10/25 device support" if EXPERT
+ depends on TOUCHSCREEN_USB_COMPOSITE
+
+config TOUCHSCREEN_USB_IRTOUCH
+ default y
+ bool "IRTOUCHSYSTEMS/UNITOP device support" if EXPERT
+ depends on TOUCHSCREEN_USB_COMPOSITE
+
+config TOUCHSCREEN_USB_IDEALTEK
+ default y
+ bool "IdealTEK URTC1000 device support" if EXPERT
+ depends on TOUCHSCREEN_USB_COMPOSITE
+
+config TOUCHSCREEN_USB_GENERAL_TOUCH
+ default y
+ bool "GeneralTouch Touchscreen device support" if EXPERT
+ depends on TOUCHSCREEN_USB_COMPOSITE
+
+config TOUCHSCREEN_USB_GOTOP
+ default y
+ bool "GoTop Super_Q2/GogoPen/PenPower tablet device support" if EXPERT
+ depends on TOUCHSCREEN_USB_COMPOSITE
+
+config TOUCHSCREEN_USB_JASTEC
+ default y
+ bool "JASTEC/DigiTech DTR-02U USB touch controller device support" if EXPERT
+ depends on TOUCHSCREEN_USB_COMPOSITE
+
+config TOUCHSCREEN_USB_E2I
+ default y
+ bool "e2i Touchscreen controller (e.g. from Mimo 740)"
+ depends on TOUCHSCREEN_USB_COMPOSITE
+
+config TOUCHSCREEN_USB_ZYTRONIC
+ default y
+ bool "Zytronic controller" if EXPERT
+ depends on TOUCHSCREEN_USB_COMPOSITE
+
+config TOUCHSCREEN_USB_ETT_TC45USB
+ default y
+ bool "ET&T USB series TC4UM/TC5UH touchscreen controller support" if EXPERT
+ depends on TOUCHSCREEN_USB_COMPOSITE
+
+config TOUCHSCREEN_USB_NEXIO
+ default y
+ bool "NEXIO/iNexio device support" if EXPERT
+ depends on TOUCHSCREEN_USB_COMPOSITE
+
+config TOUCHSCREEN_TOUCHIT213
+ tristate "Sahara TouchIT-213 touchscreen"
+ select SERIO
+ help
+ Say Y here if you have a Sahara TouchIT-213 Tablet PC.
+
+ If unsure, say N.
+
+ To compile this driver as a module, choose M here: the
+ module will be called touchit213.
+
+config TOUCHSCREEN_TSC_SERIO
+ tristate "TSC-10/25/40 serial touchscreen support"
+ select SERIO
+ help
+ Say Y here if you have a TSC-10, 25 or 40 serial touchscreen connected
+ to your system.
+
+ If unsure, say N.
+
+ To compile this driver as a module, choose M here: the
+ module will be called tsc40.
+
+config TOUCHSCREEN_TSC2005
+ tristate "TSC2005 based touchscreens"
+ depends on SPI_MASTER && GENERIC_HARDIRQS
+ help
+ Say Y here if you have a TSC2005 based touchscreen.
+
+ If unsure, say N.
+
+ To compile this driver as a module, choose M here: the
+ module will be called tsc2005.
+
+config TOUCHSCREEN_TSC2007
+ tristate "TSC2007 based touchscreens"
+ depends on I2C
+ help
+ Say Y here if you have a TSC2007 based touchscreen.
+
+ If unsure, say N.
+
+ To compile this driver as a module, choose M here: the
+ module will be called tsc2007.
+
+config TOUCHSCREEN_W90X900
+ tristate "W90P910 touchscreen driver"
+ depends on HAVE_CLK
+ help
+ Say Y here if you have a W90P910 based touchscreen.
+
+ To compile this driver as a module, choose M here: the
+ module will be called w90p910_ts.
+
+config TOUCHSCREEN_PCAP
+ tristate "Motorola PCAP touchscreen"
+ depends on EZX_PCAP
+ help
+ Say Y here if you have a Motorola EZX telephone and
+ want to enable support for the built-in touchscreen.
+
+ To compile this driver as a module, choose M here: the
+ module will be called pcap_ts.
+
+config TOUCHSCREEN_ST1232
+ tristate "Sitronix ST1232 touchscreen controllers"
+ depends on I2C
+ help
+ Say Y here if you want to support Sitronix ST1232
+ touchscreen controller.
+
+ If unsure, say N.
+
+ To compile this driver as a module, choose M here: the
+ module will be called st1232_ts.
+
+config TOUCHSCREEN_STMPE
+ tristate "STMicroelectronics STMPE touchscreens"
+ depends on MFD_STMPE
+ help
+ Say Y here if you want support for STMicroelectronics
+ STMPE touchscreen controllers.
+
+ To compile this driver as a module, choose M here: the
+ module will be called stmpe-ts.
+
+config TOUCHSCREEN_TPS6507X
+ tristate "TPS6507x based touchscreens"
+ depends on I2C
+ help
+ Say Y here if you have a TPS6507x based touchscreen
+ controller.
+
+ If unsure, say N.
+
+ To compile this driver as a module, choose M here: the
+ module will be called tps6507x_ts.
+
+endif
diff --git a/drivers/input/touchscreen/Makefile b/drivers/input/touchscreen/Makefile
new file mode 100644
index 0000000..f957676
--- /dev/null
+++ b/drivers/input/touchscreen/Makefile
@@ -0,0 +1,63 @@
+#
+# Makefile for the touchscreen drivers.
+#
+
+# Each configuration option enables a list of files.
+
+wm97xx-ts-y := wm97xx-core.o
+
+obj-$(CONFIG_TOUCHSCREEN_88PM860X) += 88pm860x-ts.o
+obj-$(CONFIG_TOUCHSCREEN_AD7877) += ad7877.o
+obj-$(CONFIG_TOUCHSCREEN_AD7879) += ad7879.o
+obj-$(CONFIG_TOUCHSCREEN_AD7879_I2C) += ad7879-i2c.o
+obj-$(CONFIG_TOUCHSCREEN_AD7879_SPI) += ad7879-spi.o
+obj-$(CONFIG_TOUCHSCREEN_ADS7846) += ads7846.o
+obj-$(CONFIG_TOUCHSCREEN_ATMEL_MXT) += atmel_mxt_ts.o
+obj-$(CONFIG_TOUCHSCREEN_ATMEL_TSADCC) += atmel_tsadcc.o
+obj-$(CONFIG_TOUCHSCREEN_BITSY) += h3600_ts_input.o
+obj-$(CONFIG_TOUCHSCREEN_BU21013) += bu21013_ts.o
+obj-$(CONFIG_TOUCHSCREEN_CY8CTMG110) += cy8ctmg110_ts.o
+obj-$(CONFIG_TOUCHSCREEN_DA9034) += da9034-ts.o
+obj-$(CONFIG_TOUCHSCREEN_DYNAPRO) += dynapro.o
+obj-$(CONFIG_TOUCHSCREEN_HAMPSHIRE) += hampshire.o
+obj-$(CONFIG_TOUCHSCREEN_GUNZE) += gunze.o
+obj-$(CONFIG_TOUCHSCREEN_EETI) += eeti_ts.o
+obj-$(CONFIG_TOUCHSCREEN_ELO) += elo.o
+obj-$(CONFIG_TOUCHSCREEN_FUJITSU) += fujitsu_ts.o
+obj-$(CONFIG_TOUCHSCREEN_INEXIO) += inexio.o
+obj-$(CONFIG_TOUCHSCREEN_INTEL_MID) += intel-mid-touch.o
+obj-$(CONFIG_TOUCHSCREEN_LPC32XX) += lpc32xx_ts.o
+obj-$(CONFIG_TOUCHSCREEN_MAX11801) += max11801_ts.o
+obj-$(CONFIG_TOUCHSCREEN_MC13783) += mc13783_ts.o
+obj-$(CONFIG_TOUCHSCREEN_MCS5000) += mcs5000_ts.o
+obj-$(CONFIG_TOUCHSCREEN_MIGOR) += migor_ts.o
+obj-$(CONFIG_TOUCHSCREEN_MTOUCH) += mtouch.o
+obj-$(CONFIG_TOUCHSCREEN_MK712) += mk712.o
+obj-$(CONFIG_TOUCHSCREEN_HP600) += hp680_ts_input.o
+obj-$(CONFIG_TOUCHSCREEN_HP7XX) += jornada720_ts.o
+obj-$(CONFIG_TOUCHSCREEN_HTCPEN) += htcpen.o
+obj-$(CONFIG_TOUCHSCREEN_USB_COMPOSITE) += usbtouchscreen.o
+obj-$(CONFIG_TOUCHSCREEN_PCAP) += pcap_ts.o
+obj-$(CONFIG_TOUCHSCREEN_PENMOUNT) += penmount.o
+obj-$(CONFIG_TOUCHSCREEN_S3C2410) += s3c2410_ts.o
+obj-$(CONFIG_TOUCHSCREEN_ST1232) += st1232.o
+obj-$(CONFIG_TOUCHSCREEN_STMPE) += stmpe-ts.o
+obj-$(CONFIG_TOUCHSCREEN_TNETV107X) += tnetv107x-ts.o
+obj-$(CONFIG_TOUCHSCREEN_TOUCHIT213) += touchit213.o
+obj-$(CONFIG_TOUCHSCREEN_TOUCHRIGHT) += touchright.o
+obj-$(CONFIG_TOUCHSCREEN_TOUCHWIN) += touchwin.o
+obj-$(CONFIG_TOUCHSCREEN_TSC_SERIO) += tsc40.o
+obj-$(CONFIG_TOUCHSCREEN_TSC2005) += tsc2005.o
+obj-$(CONFIG_TOUCHSCREEN_TSC2007) += tsc2007.o
+obj-$(CONFIG_TOUCHSCREEN_UCB1400) += ucb1400_ts.o
+obj-$(CONFIG_TOUCHSCREEN_WACOM_W8001) += wacom_w8001.o
+obj-$(CONFIG_TOUCHSCREEN_WM831X) += wm831x-ts.o
+obj-$(CONFIG_TOUCHSCREEN_WM97XX) += wm97xx-ts.o
+wm97xx-ts-$(CONFIG_TOUCHSCREEN_WM9705) += wm9705.o
+wm97xx-ts-$(CONFIG_TOUCHSCREEN_WM9712) += wm9712.o
+wm97xx-ts-$(CONFIG_TOUCHSCREEN_WM9713) += wm9713.o
+obj-$(CONFIG_TOUCHSCREEN_WM97XX_ATMEL) += atmel-wm97xx.o
+obj-$(CONFIG_TOUCHSCREEN_WM97XX_MAINSTONE) += mainstone-wm97xx.o
+obj-$(CONFIG_TOUCHSCREEN_WM97XX_ZYLONITE) += zylonite-wm97xx.o
+obj-$(CONFIG_TOUCHSCREEN_W90X900) += w90p910_ts.o
+obj-$(CONFIG_TOUCHSCREEN_TPS6507X) += tps6507x-ts.o
diff --git a/drivers/input/touchscreen/ad7877.c b/drivers/input/touchscreen/ad7877.c
new file mode 100644
index 0000000..400131d
--- /dev/null
+++ b/drivers/input/touchscreen/ad7877.c
@@ -0,0 +1,879 @@
+/*
+ * Copyright (C) 2006-2008 Michael Hennerich, Analog Devices Inc.
+ *
+ * Description: AD7877 based touchscreen, sensor (ADCs), DAC and GPIO driver
+ * Based on: ads7846.c
+ *
+ * Bugs: Enter bugs at http://blackfin.uclinux.org/
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see the file COPYING, or write
+ * to the Free Software Foundation, Inc.,
+ * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ *
+ * History:
+ * Copyright (c) 2005 David Brownell
+ * Copyright (c) 2006 Nokia Corporation
+ * Various changes: Imre Deak <imre.deak@nokia.com>
+ *
+ * Using code from:
+ * - corgi_ts.c
+ * Copyright (C) 2004-2005 Richard Purdie
+ * - omap_ts.[hc], ads7846.h, ts_osk.c
+ * Copyright (C) 2002 MontaVista Software
+ * Copyright (C) 2004 Texas Instruments
+ * Copyright (C) 2005 Dirk Behme
+ */
+
+
+#include <linux/device.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/input.h>
+#include <linux/interrupt.h>
+#include <linux/pm.h>
+#include <linux/slab.h>
+#include <linux/spi/spi.h>
+#include <linux/spi/ad7877.h>
+#include <linux/module.h>
+#include <asm/irq.h>
+
+#define TS_PEN_UP_TIMEOUT msecs_to_jiffies(100)
+
+#define MAX_SPI_FREQ_HZ 20000000
+#define MAX_12BIT ((1<<12)-1)
+
+#define AD7877_REG_ZEROS 0
+#define AD7877_REG_CTRL1 1
+#define AD7877_REG_CTRL2 2
+#define AD7877_REG_ALERT 3
+#define AD7877_REG_AUX1HIGH 4
+#define AD7877_REG_AUX1LOW 5
+#define AD7877_REG_BAT1HIGH 6
+#define AD7877_REG_BAT1LOW 7
+#define AD7877_REG_BAT2HIGH 8
+#define AD7877_REG_BAT2LOW 9
+#define AD7877_REG_TEMP1HIGH 10
+#define AD7877_REG_TEMP1LOW 11
+#define AD7877_REG_SEQ0 12
+#define AD7877_REG_SEQ1 13
+#define AD7877_REG_DAC 14
+#define AD7877_REG_NONE1 15
+#define AD7877_REG_EXTWRITE 15
+#define AD7877_REG_XPLUS 16
+#define AD7877_REG_YPLUS 17
+#define AD7877_REG_Z2 18
+#define AD7877_REG_aux1 19
+#define AD7877_REG_aux2 20
+#define AD7877_REG_aux3 21
+#define AD7877_REG_bat1 22
+#define AD7877_REG_bat2 23
+#define AD7877_REG_temp1 24
+#define AD7877_REG_temp2 25
+#define AD7877_REG_Z1 26
+#define AD7877_REG_GPIOCTRL1 27
+#define AD7877_REG_GPIOCTRL2 28
+#define AD7877_REG_GPIODATA 29
+#define AD7877_REG_NONE2 30
+#define AD7877_REG_NONE3 31
+
+#define AD7877_SEQ_YPLUS_BIT (1<<11)
+#define AD7877_SEQ_XPLUS_BIT (1<<10)
+#define AD7877_SEQ_Z2_BIT (1<<9)
+#define AD7877_SEQ_AUX1_BIT (1<<8)
+#define AD7877_SEQ_AUX2_BIT (1<<7)
+#define AD7877_SEQ_AUX3_BIT (1<<6)
+#define AD7877_SEQ_BAT1_BIT (1<<5)
+#define AD7877_SEQ_BAT2_BIT (1<<4)
+#define AD7877_SEQ_TEMP1_BIT (1<<3)
+#define AD7877_SEQ_TEMP2_BIT (1<<2)
+#define AD7877_SEQ_Z1_BIT (1<<1)
+
+enum {
+ AD7877_SEQ_YPOS = 0,
+ AD7877_SEQ_XPOS = 1,
+ AD7877_SEQ_Z2 = 2,
+ AD7877_SEQ_AUX1 = 3,
+ AD7877_SEQ_AUX2 = 4,
+ AD7877_SEQ_AUX3 = 5,
+ AD7877_SEQ_BAT1 = 6,
+ AD7877_SEQ_BAT2 = 7,
+ AD7877_SEQ_TEMP1 = 8,
+ AD7877_SEQ_TEMP2 = 9,
+ AD7877_SEQ_Z1 = 10,
+ AD7877_NR_SENSE = 11,
+};
+
+/* DAC Register Default RANGE 0 to Vcc, Volatge Mode, DAC On */
+#define AD7877_DAC_CONF 0x1
+
+/* If gpio3 is set AUX3/GPIO3 acts as GPIO Output */
+#define AD7877_EXTW_GPIO_3_CONF 0x1C4
+#define AD7877_EXTW_GPIO_DATA 0x200
+
+/* Control REG 2 */
+#define AD7877_TMR(x) ((x & 0x3) << 0)
+#define AD7877_REF(x) ((x & 0x1) << 2)
+#define AD7877_POL(x) ((x & 0x1) << 3)
+#define AD7877_FCD(x) ((x & 0x3) << 4)
+#define AD7877_PM(x) ((x & 0x3) << 6)
+#define AD7877_ACQ(x) ((x & 0x3) << 8)
+#define AD7877_AVG(x) ((x & 0x3) << 10)
+
+/* Control REG 1 */
+#define AD7877_SER (1 << 11) /* non-differential */
+#define AD7877_DFR (0 << 11) /* differential */
+
+#define AD7877_MODE_NOC (0) /* Do not convert */
+#define AD7877_MODE_SCC (1) /* Single channel conversion */
+#define AD7877_MODE_SEQ0 (2) /* Sequence 0 in Slave Mode */
+#define AD7877_MODE_SEQ1 (3) /* Sequence 1 in Master Mode */
+
+#define AD7877_CHANADD(x) ((x&0xF)<<7)
+#define AD7877_READADD(x) ((x)<<2)
+#define AD7877_WRITEADD(x) ((x)<<12)
+
+#define AD7877_READ_CHAN(x) (AD7877_WRITEADD(AD7877_REG_CTRL1) | AD7877_SER | \
+ AD7877_MODE_SCC | AD7877_CHANADD(AD7877_REG_ ## x) | \
+ AD7877_READADD(AD7877_REG_ ## x))
+
+#define AD7877_MM_SEQUENCE (AD7877_SEQ_YPLUS_BIT | AD7877_SEQ_XPLUS_BIT | \
+ AD7877_SEQ_Z2_BIT | AD7877_SEQ_Z1_BIT)
+
+/*
+ * Non-touchscreen sensors only use single-ended conversions.
+ */
+
+struct ser_req {
+ u16 reset;
+ u16 ref_on;
+ u16 command;
+ struct spi_message msg;
+ struct spi_transfer xfer[6];
+
+ /*
+ * DMA (thus cache coherency maintenance) requires the
+ * transfer buffers to live in their own cache lines.
+ */
+ u16 sample ____cacheline_aligned;
+};
+
+struct ad7877 {
+ struct input_dev *input;
+ char phys[32];
+
+ struct spi_device *spi;
+ u16 model;
+ u16 vref_delay_usecs;
+ u16 x_plate_ohms;
+ u16 pressure_max;
+
+ u16 cmd_crtl1;
+ u16 cmd_crtl2;
+ u16 cmd_dummy;
+ u16 dac;
+
+ u8 stopacq_polarity;
+ u8 first_conversion_delay;
+ u8 acquisition_time;
+ u8 averaging;
+ u8 pen_down_acc_interval;
+
+ struct spi_transfer xfer[AD7877_NR_SENSE + 2];
+ struct spi_message msg;
+
+ struct mutex mutex;
+ bool disabled; /* P: mutex */
+ bool gpio3; /* P: mutex */
+ bool gpio4; /* P: mutex */
+
+ spinlock_t lock;
+ struct timer_list timer; /* P: lock */
+
+ /*
+ * DMA (thus cache coherency maintenance) requires the
+ * transfer buffers to live in their own cache lines.
+ */
+ u16 conversion_data[AD7877_NR_SENSE] ____cacheline_aligned;
+};
+
+static bool gpio3;
+module_param(gpio3, bool, 0);
+MODULE_PARM_DESC(gpio3, "If gpio3 is set to 1 AUX3 acts as GPIO3");
+
+/*
+ * ad7877_read/write are only used for initial setup and for sysfs controls.
+ * The main traffic is done using spi_async() in the interrupt handler.
+ */
+
+static int ad7877_read(struct spi_device *spi, u16 reg)
+{
+ struct ser_req *req;
+ int status, ret;
+
+ req = kzalloc(sizeof *req, GFP_KERNEL);
+ if (!req)
+ return -ENOMEM;
+
+ spi_message_init(&req->msg);
+
+ req->command = (u16) (AD7877_WRITEADD(AD7877_REG_CTRL1) |
+ AD7877_READADD(reg));
+ req->xfer[0].tx_buf = &req->command;
+ req->xfer[0].len = 2;
+ req->xfer[0].cs_change = 1;
+
+ req->xfer[1].rx_buf = &req->sample;
+ req->xfer[1].len = 2;
+
+ spi_message_add_tail(&req->xfer[0], &req->msg);
+ spi_message_add_tail(&req->xfer[1], &req->msg);
+
+ status = spi_sync(spi, &req->msg);
+ ret = status ? : req->sample;
+
+ kfree(req);
+
+ return ret;
+}
+
+static int ad7877_write(struct spi_device *spi, u16 reg, u16 val)
+{
+ struct ser_req *req;
+ int status;
+
+ req = kzalloc(sizeof *req, GFP_KERNEL);
+ if (!req)
+ return -ENOMEM;
+
+ spi_message_init(&req->msg);
+
+ req->command = (u16) (AD7877_WRITEADD(reg) | (val & MAX_12BIT));
+ req->xfer[0].tx_buf = &req->command;
+ req->xfer[0].len = 2;
+
+ spi_message_add_tail(&req->xfer[0], &req->msg);
+
+ status = spi_sync(spi, &req->msg);
+
+ kfree(req);
+
+ return status;
+}
+
+static int ad7877_read_adc(struct spi_device *spi, unsigned command)
+{
+ struct ad7877 *ts = dev_get_drvdata(&spi->dev);
+ struct ser_req *req;
+ int status;
+ int sample;
+ int i;
+
+ req = kzalloc(sizeof *req, GFP_KERNEL);
+ if (!req)
+ return -ENOMEM;
+
+ spi_message_init(&req->msg);
+
+ /* activate reference, so it has time to settle; */
+ req->ref_on = AD7877_WRITEADD(AD7877_REG_CTRL2) |
+ AD7877_POL(ts->stopacq_polarity) |
+ AD7877_AVG(0) | AD7877_PM(2) | AD7877_TMR(0) |
+ AD7877_ACQ(ts->acquisition_time) | AD7877_FCD(0);
+
+ req->reset = AD7877_WRITEADD(AD7877_REG_CTRL1) | AD7877_MODE_NOC;
+
+ req->command = (u16) command;
+
+ req->xfer[0].tx_buf = &req->reset;
+ req->xfer[0].len = 2;
+ req->xfer[0].cs_change = 1;
+
+ req->xfer[1].tx_buf = &req->ref_on;
+ req->xfer[1].len = 2;
+ req->xfer[1].delay_usecs = ts->vref_delay_usecs;
+ req->xfer[1].cs_change = 1;
+
+ req->xfer[2].tx_buf = &req->command;
+ req->xfer[2].len = 2;
+ req->xfer[2].delay_usecs = ts->vref_delay_usecs;
+ req->xfer[2].cs_change = 1;
+
+ req->xfer[3].rx_buf = &req->sample;
+ req->xfer[3].len = 2;
+ req->xfer[3].cs_change = 1;
+
+ req->xfer[4].tx_buf = &ts->cmd_crtl2; /*REF OFF*/
+ req->xfer[4].len = 2;
+ req->xfer[4].cs_change = 1;
+
+ req->xfer[5].tx_buf = &ts->cmd_crtl1; /*DEFAULT*/
+ req->xfer[5].len = 2;
+
+ /* group all the transfers together, so we can't interfere with
+ * reading touchscreen state; disable penirq while sampling
+ */
+ for (i = 0; i < 6; i++)
+ spi_message_add_tail(&req->xfer[i], &req->msg);
+
+ status = spi_sync(spi, &req->msg);
+ sample = req->sample;
+
+ kfree(req);
+
+ return status ? : sample;
+}
+
+static int ad7877_process_data(struct ad7877 *ts)
+{
+ struct input_dev *input_dev = ts->input;
+ unsigned Rt;
+ u16 x, y, z1, z2;
+
+ x = ts->conversion_data[AD7877_SEQ_XPOS] & MAX_12BIT;
+ y = ts->conversion_data[AD7877_SEQ_YPOS] & MAX_12BIT;
+ z1 = ts->conversion_data[AD7877_SEQ_Z1] & MAX_12BIT;
+ z2 = ts->conversion_data[AD7877_SEQ_Z2] & MAX_12BIT;
+
+ /*
+ * The samples processed here are already preprocessed by the AD7877.
+ * The preprocessing function consists of an averaging filter.
+ * The combination of 'first conversion delay' and averaging provides a robust solution,
+ * discarding the spurious noise in the signal and keeping only the data of interest.
+ * The size of the averaging filter is programmable. (dev.platform_data, see linux/spi/ad7877.h)
+ * Other user-programmable conversion controls include variable acquisition time,
+ * and first conversion delay. Up to 16 averages can be taken per conversion.
+ */
+
+ if (likely(x && z1)) {
+ /* compute touch pressure resistance using equation #1 */
+ Rt = (z2 - z1) * x * ts->x_plate_ohms;
+ Rt /= z1;
+ Rt = (Rt + 2047) >> 12;
+
+ /*
+ * Sample found inconsistent, pressure is beyond
+ * the maximum. Don't report it to user space.
+ */
+ if (Rt > ts->pressure_max)
+ return -EINVAL;
+
+ if (!timer_pending(&ts->timer))
+ input_report_key(input_dev, BTN_TOUCH, 1);
+
+ input_report_abs(input_dev, ABS_X, x);
+ input_report_abs(input_dev, ABS_Y, y);
+ input_report_abs(input_dev, ABS_PRESSURE, Rt);
+ input_sync(input_dev);
+
+ return 0;
+ }
+
+ return -EINVAL;
+}
+
+static inline void ad7877_ts_event_release(struct ad7877 *ts)
+{
+ struct input_dev *input_dev = ts->input;
+
+ input_report_abs(input_dev, ABS_PRESSURE, 0);
+ input_report_key(input_dev, BTN_TOUCH, 0);
+ input_sync(input_dev);
+}
+
+static void ad7877_timer(unsigned long handle)
+{
+ struct ad7877 *ts = (void *)handle;
+ unsigned long flags;
+
+ spin_lock_irqsave(&ts->lock, flags);
+ ad7877_ts_event_release(ts);
+ spin_unlock_irqrestore(&ts->lock, flags);
+}
+
+static irqreturn_t ad7877_irq(int irq, void *handle)
+{
+ struct ad7877 *ts = handle;
+ unsigned long flags;
+ int error;
+
+ error = spi_sync(ts->spi, &ts->msg);
+ if (error) {
+ dev_err(&ts->spi->dev, "spi_sync --> %d\n", error);
+ goto out;
+ }
+
+ spin_lock_irqsave(&ts->lock, flags);
+ error = ad7877_process_data(ts);
+ if (!error)
+ mod_timer(&ts->timer, jiffies + TS_PEN_UP_TIMEOUT);
+ spin_unlock_irqrestore(&ts->lock, flags);
+
+out:
+ return IRQ_HANDLED;
+}
+
+static void ad7877_disable(struct ad7877 *ts)
+{
+ mutex_lock(&ts->mutex);
+
+ if (!ts->disabled) {
+ ts->disabled = true;
+ disable_irq(ts->spi->irq);
+
+ if (del_timer_sync(&ts->timer))
+ ad7877_ts_event_release(ts);
+ }
+
+ /*
+ * We know the chip's in lowpower mode since we always
+ * leave it that way after every request
+ */
+
+ mutex_unlock(&ts->mutex);
+}
+
+static void ad7877_enable(struct ad7877 *ts)
+{
+ mutex_lock(&ts->mutex);
+
+ if (ts->disabled) {
+ ts->disabled = false;
+ enable_irq(ts->spi->irq);
+ }
+
+ mutex_unlock(&ts->mutex);
+}
+
+#define SHOW(name) static ssize_t \
+name ## _show(struct device *dev, struct device_attribute *attr, char *buf) \
+{ \
+ struct ad7877 *ts = dev_get_drvdata(dev); \
+ ssize_t v = ad7877_read_adc(ts->spi, \
+ AD7877_READ_CHAN(name)); \
+ if (v < 0) \
+ return v; \
+ return sprintf(buf, "%u\n", (unsigned) v); \
+} \
+static DEVICE_ATTR(name, S_IRUGO, name ## _show, NULL);
+
+SHOW(aux1)
+SHOW(aux2)
+SHOW(aux3)
+SHOW(bat1)
+SHOW(bat2)
+SHOW(temp1)
+SHOW(temp2)
+
+static ssize_t ad7877_disable_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct ad7877 *ts = dev_get_drvdata(dev);
+
+ return sprintf(buf, "%u\n", ts->disabled);
+}
+
+static ssize_t ad7877_disable_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct ad7877 *ts = dev_get_drvdata(dev);
+ unsigned long val;
+ int error;
+
+ error = strict_strtoul(buf, 10, &val);
+ if (error)
+ return error;
+
+ if (val)
+ ad7877_disable(ts);
+ else
+ ad7877_enable(ts);
+
+ return count;
+}
+
+static DEVICE_ATTR(disable, 0664, ad7877_disable_show, ad7877_disable_store);
+
+static ssize_t ad7877_dac_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct ad7877 *ts = dev_get_drvdata(dev);
+
+ return sprintf(buf, "%u\n", ts->dac);
+}
+
+static ssize_t ad7877_dac_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct ad7877 *ts = dev_get_drvdata(dev);
+ unsigned long val;
+ int error;
+
+ error = strict_strtoul(buf, 10, &val);
+ if (error)
+ return error;
+
+ mutex_lock(&ts->mutex);
+ ts->dac = val & 0xFF;
+ ad7877_write(ts->spi, AD7877_REG_DAC, (ts->dac << 4) | AD7877_DAC_CONF);
+ mutex_unlock(&ts->mutex);
+
+ return count;
+}
+
+static DEVICE_ATTR(dac, 0664, ad7877_dac_show, ad7877_dac_store);
+
+static ssize_t ad7877_gpio3_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct ad7877 *ts = dev_get_drvdata(dev);
+
+ return sprintf(buf, "%u\n", ts->gpio3);
+}
+
+static ssize_t ad7877_gpio3_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct ad7877 *ts = dev_get_drvdata(dev);
+ unsigned long val;
+ int error;
+
+ error = strict_strtoul(buf, 10, &val);
+ if (error)
+ return error;
+
+ mutex_lock(&ts->mutex);
+ ts->gpio3 = !!val;
+ ad7877_write(ts->spi, AD7877_REG_EXTWRITE, AD7877_EXTW_GPIO_DATA |
+ (ts->gpio4 << 4) | (ts->gpio3 << 5));
+ mutex_unlock(&ts->mutex);
+
+ return count;
+}
+
+static DEVICE_ATTR(gpio3, 0664, ad7877_gpio3_show, ad7877_gpio3_store);
+
+static ssize_t ad7877_gpio4_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct ad7877 *ts = dev_get_drvdata(dev);
+
+ return sprintf(buf, "%u\n", ts->gpio4);
+}
+
+static ssize_t ad7877_gpio4_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct ad7877 *ts = dev_get_drvdata(dev);
+ unsigned long val;
+ int error;
+
+ error = strict_strtoul(buf, 10, &val);
+ if (error)
+ return error;
+
+ mutex_lock(&ts->mutex);
+ ts->gpio4 = !!val;
+ ad7877_write(ts->spi, AD7877_REG_EXTWRITE, AD7877_EXTW_GPIO_DATA |
+ (ts->gpio4 << 4) | (ts->gpio3 << 5));
+ mutex_unlock(&ts->mutex);
+
+ return count;
+}
+
+static DEVICE_ATTR(gpio4, 0664, ad7877_gpio4_show, ad7877_gpio4_store);
+
+static struct attribute *ad7877_attributes[] = {
+ &dev_attr_temp1.attr,
+ &dev_attr_temp2.attr,
+ &dev_attr_aux1.attr,
+ &dev_attr_aux2.attr,
+ &dev_attr_aux3.attr,
+ &dev_attr_bat1.attr,
+ &dev_attr_bat2.attr,
+ &dev_attr_disable.attr,
+ &dev_attr_dac.attr,
+ &dev_attr_gpio3.attr,
+ &dev_attr_gpio4.attr,
+ NULL
+};
+
+static mode_t ad7877_attr_is_visible(struct kobject *kobj,
+ struct attribute *attr, int n)
+{
+ mode_t mode = attr->mode;
+
+ if (attr == &dev_attr_aux3.attr) {
+ if (gpio3)
+ mode = 0;
+ } else if (attr == &dev_attr_gpio3.attr) {
+ if (!gpio3)
+ mode = 0;
+ }
+
+ return mode;
+}
+
+static const struct attribute_group ad7877_attr_group = {
+ .is_visible = ad7877_attr_is_visible,
+ .attrs = ad7877_attributes,
+};
+
+static void ad7877_setup_ts_def_msg(struct spi_device *spi, struct ad7877 *ts)
+{
+ struct spi_message *m;
+ int i;
+
+ ts->cmd_crtl2 = AD7877_WRITEADD(AD7877_REG_CTRL2) |
+ AD7877_POL(ts->stopacq_polarity) |
+ AD7877_AVG(ts->averaging) | AD7877_PM(1) |
+ AD7877_TMR(ts->pen_down_acc_interval) |
+ AD7877_ACQ(ts->acquisition_time) |
+ AD7877_FCD(ts->first_conversion_delay);
+
+ ad7877_write(spi, AD7877_REG_CTRL2, ts->cmd_crtl2);
+
+ ts->cmd_crtl1 = AD7877_WRITEADD(AD7877_REG_CTRL1) |
+ AD7877_READADD(AD7877_REG_XPLUS-1) |
+ AD7877_MODE_SEQ1 | AD7877_DFR;
+
+ ad7877_write(spi, AD7877_REG_CTRL1, ts->cmd_crtl1);
+
+ ts->cmd_dummy = 0;
+
+ m = &ts->msg;
+
+ spi_message_init(m);
+
+ m->context = ts;
+
+ ts->xfer[0].tx_buf = &ts->cmd_crtl1;
+ ts->xfer[0].len = 2;
+ ts->xfer[0].cs_change = 1;
+
+ spi_message_add_tail(&ts->xfer[0], m);
+
+ ts->xfer[1].tx_buf = &ts->cmd_dummy; /* Send ZERO */
+ ts->xfer[1].len = 2;
+ ts->xfer[1].cs_change = 1;
+
+ spi_message_add_tail(&ts->xfer[1], m);
+
+ for (i = 0; i < AD7877_NR_SENSE; i++) {
+ ts->xfer[i + 2].rx_buf = &ts->conversion_data[AD7877_SEQ_YPOS + i];
+ ts->xfer[i + 2].len = 2;
+ if (i < (AD7877_NR_SENSE - 1))
+ ts->xfer[i + 2].cs_change = 1;
+ spi_message_add_tail(&ts->xfer[i + 2], m);
+ }
+}
+
+static int __devinit ad7877_probe(struct spi_device *spi)
+{
+ struct ad7877 *ts;
+ struct input_dev *input_dev;
+ struct ad7877_platform_data *pdata = spi->dev.platform_data;
+ int err;
+ u16 verify;
+
+ if (!spi->irq) {
+ dev_dbg(&spi->dev, "no IRQ?\n");
+ return -ENODEV;
+ }
+
+ if (!pdata) {
+ dev_dbg(&spi->dev, "no platform data?\n");
+ return -ENODEV;
+ }
+
+ /* don't exceed max specified SPI CLK frequency */
+ if (spi->max_speed_hz > MAX_SPI_FREQ_HZ) {
+ dev_dbg(&spi->dev, "SPI CLK %d Hz?\n",spi->max_speed_hz);
+ return -EINVAL;
+ }
+
+ spi->bits_per_word = 16;
+ err = spi_setup(spi);
+ if (err) {
+ dev_dbg(&spi->dev, "spi master doesn't support 16 bits/word\n");
+ return err;
+ }
+
+ ts = kzalloc(sizeof(struct ad7877), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!ts || !input_dev) {
+ err = -ENOMEM;
+ goto err_free_mem;
+ }
+
+ dev_set_drvdata(&spi->dev, ts);
+ ts->spi = spi;
+ ts->input = input_dev;
+
+ setup_timer(&ts->timer, ad7877_timer, (unsigned long) ts);
+ mutex_init(&ts->mutex);
+ spin_lock_init(&ts->lock);
+
+ ts->model = pdata->model ? : 7877;
+ ts->vref_delay_usecs = pdata->vref_delay_usecs ? : 100;
+ ts->x_plate_ohms = pdata->x_plate_ohms ? : 400;
+ ts->pressure_max = pdata->pressure_max ? : ~0;
+
+ ts->stopacq_polarity = pdata->stopacq_polarity;
+ ts->first_conversion_delay = pdata->first_conversion_delay;
+ ts->acquisition_time = pdata->acquisition_time;
+ ts->averaging = pdata->averaging;
+ ts->pen_down_acc_interval = pdata->pen_down_acc_interval;
+
+ snprintf(ts->phys, sizeof(ts->phys), "%s/input0", dev_name(&spi->dev));
+
+ input_dev->name = "AD7877 Touchscreen";
+ input_dev->phys = ts->phys;
+ input_dev->dev.parent = &spi->dev;
+
+ __set_bit(EV_KEY, input_dev->evbit);
+ __set_bit(BTN_TOUCH, input_dev->keybit);
+ __set_bit(EV_ABS, input_dev->evbit);
+ __set_bit(ABS_X, input_dev->absbit);
+ __set_bit(ABS_Y, input_dev->absbit);
+ __set_bit(ABS_PRESSURE, input_dev->absbit);
+
+ input_set_abs_params(input_dev, ABS_X,
+ pdata->x_min ? : 0,
+ pdata->x_max ? : MAX_12BIT,
+ 0, 0);
+ input_set_abs_params(input_dev, ABS_Y,
+ pdata->y_min ? : 0,
+ pdata->y_max ? : MAX_12BIT,
+ 0, 0);
+ input_set_abs_params(input_dev, ABS_PRESSURE,
+ pdata->pressure_min, pdata->pressure_max, 0, 0);
+
+ ad7877_write(spi, AD7877_REG_SEQ1, AD7877_MM_SEQUENCE);
+
+ verify = ad7877_read(spi, AD7877_REG_SEQ1);
+
+ if (verify != AD7877_MM_SEQUENCE){
+ dev_err(&spi->dev, "%s: Failed to probe %s\n",
+ dev_name(&spi->dev), input_dev->name);
+ err = -ENODEV;
+ goto err_free_mem;
+ }
+
+ if (gpio3)
+ ad7877_write(spi, AD7877_REG_EXTWRITE, AD7877_EXTW_GPIO_3_CONF);
+
+ ad7877_setup_ts_def_msg(spi, ts);
+
+ /* Request AD7877 /DAV GPIO interrupt */
+
+ err = request_threaded_irq(spi->irq, NULL, ad7877_irq,
+ IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
+ spi->dev.driver->name, ts);
+ if (err) {
+ dev_dbg(&spi->dev, "irq %d busy?\n", spi->irq);
+ goto err_free_mem;
+ }
+
+ err = sysfs_create_group(&spi->dev.kobj, &ad7877_attr_group);
+ if (err)
+ goto err_free_irq;
+
+ err = input_register_device(input_dev);
+ if (err)
+ goto err_remove_attr_group;
+
+ return 0;
+
+err_remove_attr_group:
+ sysfs_remove_group(&spi->dev.kobj, &ad7877_attr_group);
+err_free_irq:
+ free_irq(spi->irq, ts);
+err_free_mem:
+ input_free_device(input_dev);
+ kfree(ts);
+ dev_set_drvdata(&spi->dev, NULL);
+ return err;
+}
+
+static int __devexit ad7877_remove(struct spi_device *spi)
+{
+ struct ad7877 *ts = dev_get_drvdata(&spi->dev);
+
+ sysfs_remove_group(&spi->dev.kobj, &ad7877_attr_group);
+
+ ad7877_disable(ts);
+ free_irq(ts->spi->irq, ts);
+
+ input_unregister_device(ts->input);
+ kfree(ts);
+
+ dev_dbg(&spi->dev, "unregistered touchscreen\n");
+ dev_set_drvdata(&spi->dev, NULL);
+
+ return 0;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int ad7877_suspend(struct device *dev)
+{
+ struct ad7877 *ts = dev_get_drvdata(dev);
+
+ ad7877_disable(ts);
+
+ return 0;
+}
+
+static int ad7877_resume(struct device *dev)
+{
+ struct ad7877 *ts = dev_get_drvdata(dev);
+
+ ad7877_enable(ts);
+
+ return 0;
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(ad7877_pm, ad7877_suspend, ad7877_resume);
+
+static struct spi_driver ad7877_driver = {
+ .driver = {
+ .name = "ad7877",
+ .bus = &spi_bus_type,
+ .owner = THIS_MODULE,
+ .pm = &ad7877_pm,
+ },
+ .probe = ad7877_probe,
+ .remove = __devexit_p(ad7877_remove),
+};
+
+static int __init ad7877_init(void)
+{
+ return spi_register_driver(&ad7877_driver);
+}
+module_init(ad7877_init);
+
+static void __exit ad7877_exit(void)
+{
+ spi_unregister_driver(&ad7877_driver);
+}
+module_exit(ad7877_exit);
+
+MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
+MODULE_DESCRIPTION("AD7877 touchscreen Driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("spi:ad7877");
diff --git a/drivers/input/touchscreen/ad7879-i2c.c b/drivers/input/touchscreen/ad7879-i2c.c
new file mode 100644
index 0000000..c789b97
--- /dev/null
+++ b/drivers/input/touchscreen/ad7879-i2c.c
@@ -0,0 +1,144 @@
+/*
+ * AD7879-1/AD7889-1 touchscreen (I2C bus)
+ *
+ * Copyright (C) 2008-2010 Michael Hennerich, Analog Devices Inc.
+ *
+ * Licensed under the GPL-2 or later.
+ */
+
+#include <linux/input.h> /* BUS_I2C */
+#include <linux/i2c.h>
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/pm.h>
+
+#include "ad7879.h"
+
+#define AD7879_DEVID 0x79 /* AD7879-1/AD7889-1 */
+
+#ifdef CONFIG_PM_SLEEP
+static int ad7879_i2c_suspend(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct ad7879 *ts = i2c_get_clientdata(client);
+
+ ad7879_suspend(ts);
+
+ return 0;
+}
+
+static int ad7879_i2c_resume(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct ad7879 *ts = i2c_get_clientdata(client);
+
+ ad7879_resume(ts);
+
+ return 0;
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(ad7879_i2c_pm, ad7879_i2c_suspend, ad7879_i2c_resume);
+
+/* All registers are word-sized.
+ * AD7879 uses a high-byte first convention.
+ */
+static int ad7879_i2c_read(struct device *dev, u8 reg)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+
+ return swab16(i2c_smbus_read_word_data(client, reg));
+}
+
+static int ad7879_i2c_multi_read(struct device *dev,
+ u8 first_reg, u8 count, u16 *buf)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ u8 idx;
+
+ i2c_smbus_read_i2c_block_data(client, first_reg, count * 2, (u8 *)buf);
+
+ for (idx = 0; idx < count; ++idx)
+ buf[idx] = swab16(buf[idx]);
+
+ return 0;
+}
+
+static int ad7879_i2c_write(struct device *dev, u8 reg, u16 val)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+
+ return i2c_smbus_write_word_data(client, reg, swab16(val));
+}
+
+static const struct ad7879_bus_ops ad7879_i2c_bus_ops = {
+ .bustype = BUS_I2C,
+ .read = ad7879_i2c_read,
+ .multi_read = ad7879_i2c_multi_read,
+ .write = ad7879_i2c_write,
+};
+
+static int __devinit ad7879_i2c_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct ad7879 *ts;
+
+ if (!i2c_check_functionality(client->adapter,
+ I2C_FUNC_SMBUS_WORD_DATA)) {
+ dev_err(&client->dev, "SMBUS Word Data not Supported\n");
+ return -EIO;
+ }
+
+ ts = ad7879_probe(&client->dev, AD7879_DEVID, client->irq,
+ &ad7879_i2c_bus_ops);
+ if (IS_ERR(ts))
+ return PTR_ERR(ts);
+
+ i2c_set_clientdata(client, ts);
+
+ return 0;
+}
+
+static int __devexit ad7879_i2c_remove(struct i2c_client *client)
+{
+ struct ad7879 *ts = i2c_get_clientdata(client);
+
+ ad7879_remove(ts);
+
+ return 0;
+}
+
+static const struct i2c_device_id ad7879_id[] = {
+ { "ad7879", 0 },
+ { "ad7889", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, ad7879_id);
+
+static struct i2c_driver ad7879_i2c_driver = {
+ .driver = {
+ .name = "ad7879",
+ .owner = THIS_MODULE,
+ .pm = &ad7879_i2c_pm,
+ },
+ .probe = ad7879_i2c_probe,
+ .remove = __devexit_p(ad7879_i2c_remove),
+ .id_table = ad7879_id,
+};
+
+static int __init ad7879_i2c_init(void)
+{
+ return i2c_add_driver(&ad7879_i2c_driver);
+}
+module_init(ad7879_i2c_init);
+
+static void __exit ad7879_i2c_exit(void)
+{
+ i2c_del_driver(&ad7879_i2c_driver);
+}
+module_exit(ad7879_i2c_exit);
+
+MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
+MODULE_DESCRIPTION("AD7879(-1) touchscreen I2C bus driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("i2c:ad7879");
diff --git a/drivers/input/touchscreen/ad7879-spi.c b/drivers/input/touchscreen/ad7879-spi.c
new file mode 100644
index 0000000..b1643c8
--- /dev/null
+++ b/drivers/input/touchscreen/ad7879-spi.c
@@ -0,0 +1,200 @@
+/*
+ * AD7879/AD7889 touchscreen (SPI bus)
+ *
+ * Copyright (C) 2008-2010 Michael Hennerich, Analog Devices Inc.
+ *
+ * Licensed under the GPL-2 or later.
+ */
+
+#include <linux/input.h> /* BUS_SPI */
+#include <linux/pm.h>
+#include <linux/spi/spi.h>
+#include <linux/module.h>
+
+#include "ad7879.h"
+
+#define AD7879_DEVID 0x7A /* AD7879/AD7889 */
+
+#define MAX_SPI_FREQ_HZ 5000000
+#define AD7879_CMD_MAGIC 0xE000
+#define AD7879_CMD_READ (1 << 10)
+#define AD7879_CMD(reg) (AD7879_CMD_MAGIC | ((reg) & 0xF))
+#define AD7879_WRITECMD(reg) (AD7879_CMD(reg))
+#define AD7879_READCMD(reg) (AD7879_CMD(reg) | AD7879_CMD_READ)
+
+#ifdef CONFIG_PM_SLEEP
+static int ad7879_spi_suspend(struct device *dev)
+{
+ struct spi_device *spi = to_spi_device(dev);
+ struct ad7879 *ts = spi_get_drvdata(spi);
+
+ ad7879_suspend(ts);
+
+ return 0;
+}
+
+static int ad7879_spi_resume(struct device *dev)
+{
+ struct spi_device *spi = to_spi_device(dev);
+ struct ad7879 *ts = spi_get_drvdata(spi);
+
+ ad7879_resume(ts);
+
+ return 0;
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(ad7879_spi_pm, ad7879_spi_suspend, ad7879_spi_resume);
+
+/*
+ * ad7879_read/write are only used for initial setup and for sysfs controls.
+ * The main traffic is done in ad7879_collect().
+ */
+
+static int ad7879_spi_xfer(struct spi_device *spi,
+ u16 cmd, u8 count, u16 *tx_buf, u16 *rx_buf)
+{
+ struct spi_message msg;
+ struct spi_transfer *xfers;
+ void *spi_data;
+ u16 *command;
+ u16 *_rx_buf = _rx_buf; /* shut gcc up */
+ u8 idx;
+ int ret;
+
+ xfers = spi_data = kzalloc(sizeof(*xfers) * (count + 2), GFP_KERNEL);
+ if (!spi_data)
+ return -ENOMEM;
+
+ spi_message_init(&msg);
+
+ command = spi_data;
+ command[0] = cmd;
+ if (count == 1) {
+ /* ad7879_spi_{read,write} gave us buf on stack */
+ command[1] = *tx_buf;
+ tx_buf = &command[1];
+ _rx_buf = rx_buf;
+ rx_buf = &command[2];
+ }
+
+ ++xfers;
+ xfers[0].tx_buf = command;
+ xfers[0].len = 2;
+ spi_message_add_tail(&xfers[0], &msg);
+ ++xfers;
+
+ for (idx = 0; idx < count; ++idx) {
+ if (rx_buf)
+ xfers[idx].rx_buf = &rx_buf[idx];
+ if (tx_buf)
+ xfers[idx].tx_buf = &tx_buf[idx];
+ xfers[idx].len = 2;
+ spi_message_add_tail(&xfers[idx], &msg);
+ }
+
+ ret = spi_sync(spi, &msg);
+
+ if (count == 1)
+ _rx_buf[0] = command[2];
+
+ kfree(spi_data);
+
+ return ret;
+}
+
+static int ad7879_spi_multi_read(struct device *dev,
+ u8 first_reg, u8 count, u16 *buf)
+{
+ struct spi_device *spi = to_spi_device(dev);
+
+ return ad7879_spi_xfer(spi, AD7879_READCMD(first_reg), count, NULL, buf);
+}
+
+static int ad7879_spi_read(struct device *dev, u8 reg)
+{
+ struct spi_device *spi = to_spi_device(dev);
+ u16 ret, dummy;
+
+ return ad7879_spi_xfer(spi, AD7879_READCMD(reg), 1, &dummy, &ret) ? : ret;
+}
+
+static int ad7879_spi_write(struct device *dev, u8 reg, u16 val)
+{
+ struct spi_device *spi = to_spi_device(dev);
+ u16 dummy;
+
+ return ad7879_spi_xfer(spi, AD7879_WRITECMD(reg), 1, &val, &dummy);
+}
+
+static const struct ad7879_bus_ops ad7879_spi_bus_ops = {
+ .bustype = BUS_SPI,
+ .read = ad7879_spi_read,
+ .multi_read = ad7879_spi_multi_read,
+ .write = ad7879_spi_write,
+};
+
+static int __devinit ad7879_spi_probe(struct spi_device *spi)
+{
+ struct ad7879 *ts;
+ int err;
+
+ /* don't exceed max specified SPI CLK frequency */
+ if (spi->max_speed_hz > MAX_SPI_FREQ_HZ) {
+ dev_err(&spi->dev, "SPI CLK %d Hz?\n", spi->max_speed_hz);
+ return -EINVAL;
+ }
+
+ spi->bits_per_word = 16;
+ err = spi_setup(spi);
+ if (err) {
+ dev_dbg(&spi->dev, "spi master doesn't support 16 bits/word\n");
+ return err;
+ }
+
+ ts = ad7879_probe(&spi->dev, AD7879_DEVID, spi->irq, &ad7879_spi_bus_ops);
+ if (IS_ERR(ts))
+ return PTR_ERR(ts);
+
+ spi_set_drvdata(spi, ts);
+
+ return 0;
+}
+
+static int __devexit ad7879_spi_remove(struct spi_device *spi)
+{
+ struct ad7879 *ts = spi_get_drvdata(spi);
+
+ ad7879_remove(ts);
+ spi_set_drvdata(spi, NULL);
+
+ return 0;
+}
+
+static struct spi_driver ad7879_spi_driver = {
+ .driver = {
+ .name = "ad7879",
+ .bus = &spi_bus_type,
+ .owner = THIS_MODULE,
+ .pm = &ad7879_spi_pm,
+ },
+ .probe = ad7879_spi_probe,
+ .remove = __devexit_p(ad7879_spi_remove),
+};
+
+static int __init ad7879_spi_init(void)
+{
+ return spi_register_driver(&ad7879_spi_driver);
+}
+module_init(ad7879_spi_init);
+
+static void __exit ad7879_spi_exit(void)
+{
+ spi_unregister_driver(&ad7879_spi_driver);
+}
+module_exit(ad7879_spi_exit);
+
+MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
+MODULE_DESCRIPTION("AD7879(-1) touchscreen SPI bus driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("spi:ad7879");
diff --git a/drivers/input/touchscreen/ad7879.c b/drivers/input/touchscreen/ad7879.c
new file mode 100644
index 0000000..3b2e9ed
--- /dev/null
+++ b/drivers/input/touchscreen/ad7879.c
@@ -0,0 +1,638 @@
+/*
+ * AD7879/AD7889 based touchscreen and GPIO driver
+ *
+ * Copyright (C) 2008-2010 Michael Hennerich, Analog Devices Inc.
+ *
+ * Licensed under the GPL-2 or later.
+ *
+ * History:
+ * Copyright (c) 2005 David Brownell
+ * Copyright (c) 2006 Nokia Corporation
+ * Various changes: Imre Deak <imre.deak@nokia.com>
+ *
+ * Using code from:
+ * - corgi_ts.c
+ * Copyright (C) 2004-2005 Richard Purdie
+ * - omap_ts.[hc], ads7846.h, ts_osk.c
+ * Copyright (C) 2002 MontaVista Software
+ * Copyright (C) 2004 Texas Instruments
+ * Copyright (C) 2005 Dirk Behme
+ * - ad7877.c
+ * Copyright (C) 2006-2008 Analog Devices Inc.
+ */
+
+#include <linux/device.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/input.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/slab.h>
+#include <linux/spi/spi.h>
+#include <linux/i2c.h>
+#include <linux/gpio.h>
+
+#include <linux/spi/ad7879.h>
+#include <linux/module.h>
+#include "ad7879.h"
+
+#define AD7879_REG_ZEROS 0
+#define AD7879_REG_CTRL1 1
+#define AD7879_REG_CTRL2 2
+#define AD7879_REG_CTRL3 3
+#define AD7879_REG_AUX1HIGH 4
+#define AD7879_REG_AUX1LOW 5
+#define AD7879_REG_TEMP1HIGH 6
+#define AD7879_REG_TEMP1LOW 7
+#define AD7879_REG_XPLUS 8
+#define AD7879_REG_YPLUS 9
+#define AD7879_REG_Z1 10
+#define AD7879_REG_Z2 11
+#define AD7879_REG_AUXVBAT 12
+#define AD7879_REG_TEMP 13
+#define AD7879_REG_REVID 14
+
+/* Control REG 1 */
+#define AD7879_TMR(x) ((x & 0xFF) << 0)
+#define AD7879_ACQ(x) ((x & 0x3) << 8)
+#define AD7879_MODE_NOC (0 << 10) /* Do not convert */
+#define AD7879_MODE_SCC (1 << 10) /* Single channel conversion */
+#define AD7879_MODE_SEQ0 (2 << 10) /* Sequence 0 in Slave Mode */
+#define AD7879_MODE_SEQ1 (3 << 10) /* Sequence 1 in Master Mode */
+#define AD7879_MODE_INT (1 << 15) /* PENIRQ disabled INT enabled */
+
+/* Control REG 2 */
+#define AD7879_FCD(x) ((x & 0x3) << 0)
+#define AD7879_RESET (1 << 4)
+#define AD7879_MFS(x) ((x & 0x3) << 5)
+#define AD7879_AVG(x) ((x & 0x3) << 7)
+#define AD7879_SER (1 << 9) /* non-differential */
+#define AD7879_DFR (0 << 9) /* differential */
+#define AD7879_GPIOPOL (1 << 10)
+#define AD7879_GPIODIR (1 << 11)
+#define AD7879_GPIO_DATA (1 << 12)
+#define AD7879_GPIO_EN (1 << 13)
+#define AD7879_PM(x) ((x & 0x3) << 14)
+#define AD7879_PM_SHUTDOWN (0)
+#define AD7879_PM_DYN (1)
+#define AD7879_PM_FULLON (2)
+
+/* Control REG 3 */
+#define AD7879_TEMPMASK_BIT (1<<15)
+#define AD7879_AUXVBATMASK_BIT (1<<14)
+#define AD7879_INTMODE_BIT (1<<13)
+#define AD7879_GPIOALERTMASK_BIT (1<<12)
+#define AD7879_AUXLOW_BIT (1<<11)
+#define AD7879_AUXHIGH_BIT (1<<10)
+#define AD7879_TEMPLOW_BIT (1<<9)
+#define AD7879_TEMPHIGH_BIT (1<<8)
+#define AD7879_YPLUS_BIT (1<<7)
+#define AD7879_XPLUS_BIT (1<<6)
+#define AD7879_Z1_BIT (1<<5)
+#define AD7879_Z2_BIT (1<<4)
+#define AD7879_AUX_BIT (1<<3)
+#define AD7879_VBAT_BIT (1<<2)
+#define AD7879_TEMP_BIT (1<<1)
+
+enum {
+ AD7879_SEQ_XPOS = 0,
+ AD7879_SEQ_YPOS = 1,
+ AD7879_SEQ_Z1 = 2,
+ AD7879_SEQ_Z2 = 3,
+ AD7879_NR_SENSE = 4,
+};
+
+#define MAX_12BIT ((1<<12)-1)
+#define TS_PEN_UP_TIMEOUT msecs_to_jiffies(50)
+
+struct ad7879 {
+ const struct ad7879_bus_ops *bops;
+
+ struct device *dev;
+ struct input_dev *input;
+ struct timer_list timer;
+#ifdef CONFIG_GPIOLIB
+ struct gpio_chip gc;
+ struct mutex mutex;
+#endif
+ unsigned int irq;
+ bool disabled; /* P: input->mutex */
+ bool suspended; /* P: input->mutex */
+ u16 conversion_data[AD7879_NR_SENSE];
+ char phys[32];
+ u8 first_conversion_delay;
+ u8 acquisition_time;
+ u8 averaging;
+ u8 pen_down_acc_interval;
+ u8 median;
+ u16 x_plate_ohms;
+ u16 pressure_max;
+ u16 cmd_crtl1;
+ u16 cmd_crtl2;
+ u16 cmd_crtl3;
+ int x;
+ int y;
+ int Rt;
+};
+
+static int ad7879_read(struct ad7879 *ts, u8 reg)
+{
+ return ts->bops->read(ts->dev, reg);
+}
+
+static int ad7879_multi_read(struct ad7879 *ts, u8 first_reg, u8 count, u16 *buf)
+{
+ return ts->bops->multi_read(ts->dev, first_reg, count, buf);
+}
+
+static int ad7879_write(struct ad7879 *ts, u8 reg, u16 val)
+{
+ return ts->bops->write(ts->dev, reg, val);
+}
+
+static int ad7879_report(struct ad7879 *ts)
+{
+ struct input_dev *input_dev = ts->input;
+ unsigned Rt;
+ u16 x, y, z1, z2;
+
+ x = ts->conversion_data[AD7879_SEQ_XPOS] & MAX_12BIT;
+ y = ts->conversion_data[AD7879_SEQ_YPOS] & MAX_12BIT;
+ z1 = ts->conversion_data[AD7879_SEQ_Z1] & MAX_12BIT;
+ z2 = ts->conversion_data[AD7879_SEQ_Z2] & MAX_12BIT;
+
+ /*
+ * The samples processed here are already preprocessed by the AD7879.
+ * The preprocessing function consists of a median and an averaging
+ * filter. The combination of these two techniques provides a robust
+ * solution, discarding the spurious noise in the signal and keeping
+ * only the data of interest. The size of both filters is
+ * programmable. (dev.platform_data, see linux/spi/ad7879.h) Other
+ * user-programmable conversion controls include variable acquisition
+ * time, and first conversion delay. Up to 16 averages can be taken
+ * per conversion.
+ */
+
+ if (likely(x && z1)) {
+ /* compute touch pressure resistance using equation #1 */
+ Rt = (z2 - z1) * x * ts->x_plate_ohms;
+ Rt /= z1;
+ Rt = (Rt + 2047) >> 12;
+
+ /*
+ * Sample found inconsistent, pressure is beyond
+ * the maximum. Don't report it to user space.
+ */
+ if (Rt > ts->pressure_max)
+ return -EINVAL;
+
+ /*
+ * Note that we delay reporting events by one sample.
+ * This is done to avoid reporting last sample of the
+ * touch sequence, which may be incomplete if finger
+ * leaves the surface before last reading is taken.
+ */
+ if (timer_pending(&ts->timer)) {
+ /* Touch continues */
+ input_report_key(input_dev, BTN_TOUCH, 1);
+ input_report_abs(input_dev, ABS_X, ts->x);
+ input_report_abs(input_dev, ABS_Y, ts->y);
+ input_report_abs(input_dev, ABS_PRESSURE, ts->Rt);
+ input_sync(input_dev);
+ }
+
+ ts->x = x;
+ ts->y = y;
+ ts->Rt = Rt;
+
+ return 0;
+ }
+
+ return -EINVAL;
+}
+
+static void ad7879_ts_event_release(struct ad7879 *ts)
+{
+ struct input_dev *input_dev = ts->input;
+
+ input_report_abs(input_dev, ABS_PRESSURE, 0);
+ input_report_key(input_dev, BTN_TOUCH, 0);
+ input_sync(input_dev);
+}
+
+static void ad7879_timer(unsigned long handle)
+{
+ struct ad7879 *ts = (void *)handle;
+
+ ad7879_ts_event_release(ts);
+}
+
+static irqreturn_t ad7879_irq(int irq, void *handle)
+{
+ struct ad7879 *ts = handle;
+
+ ad7879_multi_read(ts, AD7879_REG_XPLUS, AD7879_NR_SENSE, ts->conversion_data);
+
+ if (!ad7879_report(ts))
+ mod_timer(&ts->timer, jiffies + TS_PEN_UP_TIMEOUT);
+
+ return IRQ_HANDLED;
+}
+
+static void __ad7879_enable(struct ad7879 *ts)
+{
+ ad7879_write(ts, AD7879_REG_CTRL2, ts->cmd_crtl2);
+ ad7879_write(ts, AD7879_REG_CTRL3, ts->cmd_crtl3);
+ ad7879_write(ts, AD7879_REG_CTRL1, ts->cmd_crtl1);
+
+ enable_irq(ts->irq);
+}
+
+static void __ad7879_disable(struct ad7879 *ts)
+{
+ u16 reg = (ts->cmd_crtl2 & ~AD7879_PM(-1)) |
+ AD7879_PM(AD7879_PM_SHUTDOWN);
+ disable_irq(ts->irq);
+
+ if (del_timer_sync(&ts->timer))
+ ad7879_ts_event_release(ts);
+
+ ad7879_write(ts, AD7879_REG_CTRL2, reg);
+}
+
+
+static int ad7879_open(struct input_dev *input)
+{
+ struct ad7879 *ts = input_get_drvdata(input);
+
+ /* protected by input->mutex */
+ if (!ts->disabled && !ts->suspended)
+ __ad7879_enable(ts);
+
+ return 0;
+}
+
+static void ad7879_close(struct input_dev* input)
+{
+ struct ad7879 *ts = input_get_drvdata(input);
+
+ /* protected by input->mutex */
+ if (!ts->disabled && !ts->suspended)
+ __ad7879_disable(ts);
+}
+
+void ad7879_suspend(struct ad7879 *ts)
+{
+ mutex_lock(&ts->input->mutex);
+
+ if (!ts->suspended && !ts->disabled && ts->input->users)
+ __ad7879_disable(ts);
+
+ ts->suspended = true;
+
+ mutex_unlock(&ts->input->mutex);
+}
+EXPORT_SYMBOL(ad7879_suspend);
+
+void ad7879_resume(struct ad7879 *ts)
+{
+ mutex_lock(&ts->input->mutex);
+
+ if (ts->suspended && !ts->disabled && ts->input->users)
+ __ad7879_enable(ts);
+
+ ts->suspended = false;
+
+ mutex_unlock(&ts->input->mutex);
+}
+EXPORT_SYMBOL(ad7879_resume);
+
+static void ad7879_toggle(struct ad7879 *ts, bool disable)
+{
+ mutex_lock(&ts->input->mutex);
+
+ if (!ts->suspended && ts->input->users != 0) {
+
+ if (disable) {
+ if (ts->disabled)
+ __ad7879_enable(ts);
+ } else {
+ if (!ts->disabled)
+ __ad7879_disable(ts);
+ }
+ }
+
+ ts->disabled = disable;
+
+ mutex_unlock(&ts->input->mutex);
+}
+
+static ssize_t ad7879_disable_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct ad7879 *ts = dev_get_drvdata(dev);
+
+ return sprintf(buf, "%u\n", ts->disabled);
+}
+
+static ssize_t ad7879_disable_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct ad7879 *ts = dev_get_drvdata(dev);
+ unsigned long val;
+ int error;
+
+ error = strict_strtoul(buf, 10, &val);
+ if (error)
+ return error;
+
+ ad7879_toggle(ts, val);
+
+ return count;
+}
+
+static DEVICE_ATTR(disable, 0664, ad7879_disable_show, ad7879_disable_store);
+
+static struct attribute *ad7879_attributes[] = {
+ &dev_attr_disable.attr,
+ NULL
+};
+
+static const struct attribute_group ad7879_attr_group = {
+ .attrs = ad7879_attributes,
+};
+
+#ifdef CONFIG_GPIOLIB
+static int ad7879_gpio_direction_input(struct gpio_chip *chip,
+ unsigned gpio)
+{
+ struct ad7879 *ts = container_of(chip, struct ad7879, gc);
+ int err;
+
+ mutex_lock(&ts->mutex);
+ ts->cmd_crtl2 |= AD7879_GPIO_EN | AD7879_GPIODIR | AD7879_GPIOPOL;
+ err = ad7879_write(ts, AD7879_REG_CTRL2, ts->cmd_crtl2);
+ mutex_unlock(&ts->mutex);
+
+ return err;
+}
+
+static int ad7879_gpio_direction_output(struct gpio_chip *chip,
+ unsigned gpio, int level)
+{
+ struct ad7879 *ts = container_of(chip, struct ad7879, gc);
+ int err;
+
+ mutex_lock(&ts->mutex);
+ ts->cmd_crtl2 &= ~AD7879_GPIODIR;
+ ts->cmd_crtl2 |= AD7879_GPIO_EN | AD7879_GPIOPOL;
+ if (level)
+ ts->cmd_crtl2 |= AD7879_GPIO_DATA;
+ else
+ ts->cmd_crtl2 &= ~AD7879_GPIO_DATA;
+
+ err = ad7879_write(ts, AD7879_REG_CTRL2, ts->cmd_crtl2);
+ mutex_unlock(&ts->mutex);
+
+ return err;
+}
+
+static int ad7879_gpio_get_value(struct gpio_chip *chip, unsigned gpio)
+{
+ struct ad7879 *ts = container_of(chip, struct ad7879, gc);
+ u16 val;
+
+ mutex_lock(&ts->mutex);
+ val = ad7879_read(ts, AD7879_REG_CTRL2);
+ mutex_unlock(&ts->mutex);
+
+ return !!(val & AD7879_GPIO_DATA);
+}
+
+static void ad7879_gpio_set_value(struct gpio_chip *chip,
+ unsigned gpio, int value)
+{
+ struct ad7879 *ts = container_of(chip, struct ad7879, gc);
+
+ mutex_lock(&ts->mutex);
+ if (value)
+ ts->cmd_crtl2 |= AD7879_GPIO_DATA;
+ else
+ ts->cmd_crtl2 &= ~AD7879_GPIO_DATA;
+
+ ad7879_write(ts, AD7879_REG_CTRL2, ts->cmd_crtl2);
+ mutex_unlock(&ts->mutex);
+}
+
+static int ad7879_gpio_add(struct ad7879 *ts,
+ const struct ad7879_platform_data *pdata)
+{
+ int ret = 0;
+
+ mutex_init(&ts->mutex);
+
+ if (pdata->gpio_export) {
+ ts->gc.direction_input = ad7879_gpio_direction_input;
+ ts->gc.direction_output = ad7879_gpio_direction_output;
+ ts->gc.get = ad7879_gpio_get_value;
+ ts->gc.set = ad7879_gpio_set_value;
+ ts->gc.can_sleep = 1;
+ ts->gc.base = pdata->gpio_base;
+ ts->gc.ngpio = 1;
+ ts->gc.label = "AD7879-GPIO";
+ ts->gc.owner = THIS_MODULE;
+ ts->gc.dev = ts->dev;
+
+ ret = gpiochip_add(&ts->gc);
+ if (ret)
+ dev_err(ts->dev, "failed to register gpio %d\n",
+ ts->gc.base);
+ }
+
+ return ret;
+}
+
+static void ad7879_gpio_remove(struct ad7879 *ts)
+{
+ const struct ad7879_platform_data *pdata = ts->dev->platform_data;
+ int ret;
+
+ if (pdata->gpio_export) {
+ ret = gpiochip_remove(&ts->gc);
+ if (ret)
+ dev_err(ts->dev, "failed to remove gpio %d\n",
+ ts->gc.base);
+ }
+}
+#else
+static inline int ad7879_gpio_add(struct ad7879 *ts,
+ const struct ad7879_platform_data *pdata)
+{
+ return 0;
+}
+
+static inline void ad7879_gpio_remove(struct ad7879 *ts)
+{
+}
+#endif
+
+struct ad7879 *ad7879_probe(struct device *dev, u8 devid, unsigned int irq,
+ const struct ad7879_bus_ops *bops)
+{
+ struct ad7879_platform_data *pdata = dev->platform_data;
+ struct ad7879 *ts;
+ struct input_dev *input_dev;
+ int err;
+ u16 revid;
+
+ if (!irq) {
+ dev_err(dev, "no IRQ?\n");
+ err = -EINVAL;
+ goto err_out;
+ }
+
+ if (!pdata) {
+ dev_err(dev, "no platform data?\n");
+ err = -EINVAL;
+ goto err_out;
+ }
+
+ ts = kzalloc(sizeof(*ts), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!ts || !input_dev) {
+ err = -ENOMEM;
+ goto err_free_mem;
+ }
+
+ ts->bops = bops;
+ ts->dev = dev;
+ ts->input = input_dev;
+ ts->irq = irq;
+
+ setup_timer(&ts->timer, ad7879_timer, (unsigned long) ts);
+
+ ts->x_plate_ohms = pdata->x_plate_ohms ? : 400;
+ ts->pressure_max = pdata->pressure_max ? : ~0;
+
+ ts->first_conversion_delay = pdata->first_conversion_delay;
+ ts->acquisition_time = pdata->acquisition_time;
+ ts->averaging = pdata->averaging;
+ ts->pen_down_acc_interval = pdata->pen_down_acc_interval;
+ ts->median = pdata->median;
+
+ snprintf(ts->phys, sizeof(ts->phys), "%s/input0", dev_name(dev));
+
+ input_dev->name = "AD7879 Touchscreen";
+ input_dev->phys = ts->phys;
+ input_dev->dev.parent = dev;
+ input_dev->id.bustype = bops->bustype;
+
+ input_dev->open = ad7879_open;
+ input_dev->close = ad7879_close;
+
+ input_set_drvdata(input_dev, ts);
+
+ __set_bit(EV_ABS, input_dev->evbit);
+ __set_bit(ABS_X, input_dev->absbit);
+ __set_bit(ABS_Y, input_dev->absbit);
+ __set_bit(ABS_PRESSURE, input_dev->absbit);
+
+ __set_bit(EV_KEY, input_dev->evbit);
+ __set_bit(BTN_TOUCH, input_dev->keybit);
+
+ input_set_abs_params(input_dev, ABS_X,
+ pdata->x_min ? : 0,
+ pdata->x_max ? : MAX_12BIT,
+ 0, 0);
+ input_set_abs_params(input_dev, ABS_Y,
+ pdata->y_min ? : 0,
+ pdata->y_max ? : MAX_12BIT,
+ 0, 0);
+ input_set_abs_params(input_dev, ABS_PRESSURE,
+ pdata->pressure_min, pdata->pressure_max, 0, 0);
+
+ err = ad7879_write(ts, AD7879_REG_CTRL2, AD7879_RESET);
+ if (err < 0) {
+ dev_err(dev, "Failed to write %s\n", input_dev->name);
+ goto err_free_mem;
+ }
+
+ revid = ad7879_read(ts, AD7879_REG_REVID);
+ input_dev->id.product = (revid & 0xff);
+ input_dev->id.version = revid >> 8;
+ if (input_dev->id.product != devid) {
+ dev_err(dev, "Failed to probe %s (%x vs %x)\n",
+ input_dev->name, devid, revid);
+ err = -ENODEV;
+ goto err_free_mem;
+ }
+
+ ts->cmd_crtl3 = AD7879_YPLUS_BIT |
+ AD7879_XPLUS_BIT |
+ AD7879_Z2_BIT |
+ AD7879_Z1_BIT |
+ AD7879_TEMPMASK_BIT |
+ AD7879_AUXVBATMASK_BIT |
+ AD7879_GPIOALERTMASK_BIT;
+
+ ts->cmd_crtl2 = AD7879_PM(AD7879_PM_DYN) | AD7879_DFR |
+ AD7879_AVG(ts->averaging) |
+ AD7879_MFS(ts->median) |
+ AD7879_FCD(ts->first_conversion_delay);
+
+ ts->cmd_crtl1 = AD7879_MODE_INT | AD7879_MODE_SEQ1 |
+ AD7879_ACQ(ts->acquisition_time) |
+ AD7879_TMR(ts->pen_down_acc_interval);
+
+ err = request_threaded_irq(ts->irq, NULL, ad7879_irq,
+ IRQF_TRIGGER_FALLING,
+ dev_name(dev), ts);
+ if (err) {
+ dev_err(dev, "irq %d busy?\n", ts->irq);
+ goto err_free_mem;
+ }
+
+ __ad7879_disable(ts);
+
+ err = sysfs_create_group(&dev->kobj, &ad7879_attr_group);
+ if (err)
+ goto err_free_irq;
+
+ err = ad7879_gpio_add(ts, pdata);
+ if (err)
+ goto err_remove_attr;
+
+ err = input_register_device(input_dev);
+ if (err)
+ goto err_remove_gpio;
+
+ return ts;
+
+err_remove_gpio:
+ ad7879_gpio_remove(ts);
+err_remove_attr:
+ sysfs_remove_group(&dev->kobj, &ad7879_attr_group);
+err_free_irq:
+ free_irq(ts->irq, ts);
+err_free_mem:
+ input_free_device(input_dev);
+ kfree(ts);
+err_out:
+ return ERR_PTR(err);
+}
+EXPORT_SYMBOL(ad7879_probe);
+
+void ad7879_remove(struct ad7879 *ts)
+{
+ ad7879_gpio_remove(ts);
+ sysfs_remove_group(&ts->dev->kobj, &ad7879_attr_group);
+ free_irq(ts->irq, ts);
+ input_unregister_device(ts->input);
+ kfree(ts);
+}
+EXPORT_SYMBOL(ad7879_remove);
+
+MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
+MODULE_DESCRIPTION("AD7879(-1) touchscreen Driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/input/touchscreen/ad7879.h b/drivers/input/touchscreen/ad7879.h
new file mode 100644
index 0000000..6b45a27
--- /dev/null
+++ b/drivers/input/touchscreen/ad7879.h
@@ -0,0 +1,30 @@
+/*
+ * AD7879/AD7889 touchscreen (bus interfaces)
+ *
+ * Copyright (C) 2008-2010 Michael Hennerich, Analog Devices Inc.
+ *
+ * Licensed under the GPL-2 or later.
+ */
+
+#ifndef _AD7879_H_
+#define _AD7879_H_
+
+#include <linux/types.h>
+
+struct ad7879;
+struct device;
+
+struct ad7879_bus_ops {
+ u16 bustype;
+ int (*read)(struct device *dev, u8 reg);
+ int (*multi_read)(struct device *dev, u8 first_reg, u8 count, u16 *buf);
+ int (*write)(struct device *dev, u8 reg, u16 val);
+};
+
+void ad7879_suspend(struct ad7879 *);
+void ad7879_resume(struct ad7879 *);
+struct ad7879 *ad7879_probe(struct device *dev, u8 devid, unsigned irq,
+ const struct ad7879_bus_ops *bops);
+void ad7879_remove(struct ad7879 *);
+
+#endif
diff --git a/drivers/input/touchscreen/ads7846.c b/drivers/input/touchscreen/ads7846.c
new file mode 100644
index 0000000..de31ec6
--- /dev/null
+++ b/drivers/input/touchscreen/ads7846.c
@@ -0,0 +1,1449 @@
+/*
+ * ADS7846 based touchscreen and sensor driver
+ *
+ * Copyright (c) 2005 David Brownell
+ * Copyright (c) 2006 Nokia Corporation
+ * Various changes: Imre Deak <imre.deak@nokia.com>
+ *
+ * Using code from:
+ * - corgi_ts.c
+ * Copyright (C) 2004-2005 Richard Purdie
+ * - omap_ts.[hc], ads7846.h, ts_osk.c
+ * Copyright (C) 2002 MontaVista Software
+ * Copyright (C) 2004 Texas Instruments
+ * Copyright (C) 2005 Dirk Behme
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <linux/types.h>
+#include <linux/hwmon.h>
+#include <linux/init.h>
+#include <linux/err.h>
+#include <linux/sched.h>
+#include <linux/delay.h>
+#include <linux/input.h>
+#include <linux/interrupt.h>
+#include <linux/slab.h>
+#include <linux/pm.h>
+#include <linux/gpio.h>
+#include <linux/spi/spi.h>
+#include <linux/spi/ads7846.h>
+#include <linux/regulator/consumer.h>
+#include <linux/module.h>
+#include <asm/irq.h>
+
+/*
+ * This code has been heavily tested on a Nokia 770, and lightly
+ * tested on other ads7846 devices (OSK/Mistral, Lubbock, Spitz).
+ * TSC2046 is just newer ads7846 silicon.
+ * Support for ads7843 tested on Atmel at91sam926x-EK.
+ * Support for ads7845 has only been stubbed in.
+ * Support for Analog Devices AD7873 and AD7843 tested.
+ *
+ * IRQ handling needs a workaround because of a shortcoming in handling
+ * edge triggered IRQs on some platforms like the OMAP1/2. These
+ * platforms don't handle the ARM lazy IRQ disabling properly, thus we
+ * have to maintain our own SW IRQ disabled status. This should be
+ * removed as soon as the affected platform's IRQ handling is fixed.
+ *
+ * App note sbaa036 talks in more detail about accurate sampling...
+ * that ought to help in situations like LCDs inducing noise (which
+ * can also be helped by using synch signals) and more generally.
+ * This driver tries to utilize the measures described in the app
+ * note. The strength of filtering can be set in the board-* specific
+ * files.
+ */
+
+#define TS_POLL_DELAY 1 /* ms delay before the first sample */
+#define TS_POLL_PERIOD 5 /* ms delay between samples */
+
+/* this driver doesn't aim at the peak continuous sample rate */
+#define SAMPLE_BITS (8 /*cmd*/ + 16 /*sample*/ + 2 /* before, after */)
+
+struct ts_event {
+ /*
+ * For portability, we can't read 12 bit values using SPI (which
+ * would make the controller deliver them as native byte order u16
+ * with msbs zeroed). Instead, we read them as two 8-bit values,
+ * *** WHICH NEED BYTESWAPPING *** and range adjustment.
+ */
+ u16 x;
+ u16 y;
+ u16 z1, z2;
+ bool ignore;
+ u8 x_buf[3];
+ u8 y_buf[3];
+};
+
+/*
+ * We allocate this separately to avoid cache line sharing issues when
+ * driver is used with DMA-based SPI controllers (like atmel_spi) on
+ * systems where main memory is not DMA-coherent (most non-x86 boards).
+ */
+struct ads7846_packet {
+ u8 read_x, read_y, read_z1, read_z2, pwrdown;
+ u16 dummy; /* for the pwrdown read */
+ struct ts_event tc;
+ /* for ads7845 with mpc5121 psc spi we use 3-byte buffers */
+ u8 read_x_cmd[3], read_y_cmd[3], pwrdown_cmd[3];
+};
+
+struct ads7846 {
+ struct input_dev *input;
+ char phys[32];
+ char name[32];
+
+ struct spi_device *spi;
+ struct regulator *reg;
+
+#if defined(CONFIG_HWMON) || defined(CONFIG_HWMON_MODULE)
+ struct attribute_group *attr_group;
+ struct device *hwmon;
+#endif
+
+ u16 model;
+ u16 vref_mv;
+ u16 vref_delay_usecs;
+ u16 x_plate_ohms;
+ u16 pressure_max;
+
+ bool swap_xy;
+ bool use_internal;
+
+ struct ads7846_packet *packet;
+
+ struct spi_transfer xfer[18];
+ struct spi_message msg[5];
+ int msg_count;
+ wait_queue_head_t wait;
+
+ bool pendown;
+
+ int read_cnt;
+ int read_rep;
+ int last_read;
+
+ u16 debounce_max;
+ u16 debounce_tol;
+ u16 debounce_rep;
+
+ u16 penirq_recheck_delay_usecs;
+
+ struct mutex lock;
+ bool stopped; /* P: lock */
+ bool disabled; /* P: lock */
+ bool suspended; /* P: lock */
+
+ int (*filter)(void *data, int data_idx, int *val);
+ void *filter_data;
+ void (*filter_cleanup)(void *data);
+ int (*get_pendown_state)(void);
+ int gpio_pendown;
+
+ void (*wait_for_sync)(void);
+};
+
+/* leave chip selected when we're done, for quicker re-select? */
+#if 0
+#define CS_CHANGE(xfer) ((xfer).cs_change = 1)
+#else
+#define CS_CHANGE(xfer) ((xfer).cs_change = 0)
+#endif
+
+/*--------------------------------------------------------------------------*/
+
+/* The ADS7846 has touchscreen and other sensors.
+ * Earlier ads784x chips are somewhat compatible.
+ */
+#define ADS_START (1 << 7)
+#define ADS_A2A1A0_d_y (1 << 4) /* differential */
+#define ADS_A2A1A0_d_z1 (3 << 4) /* differential */
+#define ADS_A2A1A0_d_z2 (4 << 4) /* differential */
+#define ADS_A2A1A0_d_x (5 << 4) /* differential */
+#define ADS_A2A1A0_temp0 (0 << 4) /* non-differential */
+#define ADS_A2A1A0_vbatt (2 << 4) /* non-differential */
+#define ADS_A2A1A0_vaux (6 << 4) /* non-differential */
+#define ADS_A2A1A0_temp1 (7 << 4) /* non-differential */
+#define ADS_8_BIT (1 << 3)
+#define ADS_12_BIT (0 << 3)
+#define ADS_SER (1 << 2) /* non-differential */
+#define ADS_DFR (0 << 2) /* differential */
+#define ADS_PD10_PDOWN (0 << 0) /* low power mode + penirq */
+#define ADS_PD10_ADC_ON (1 << 0) /* ADC on */
+#define ADS_PD10_REF_ON (2 << 0) /* vREF on + penirq */
+#define ADS_PD10_ALL_ON (3 << 0) /* ADC + vREF on */
+
+#define MAX_12BIT ((1<<12)-1)
+
+/* leave ADC powered up (disables penirq) between differential samples */
+#define READ_12BIT_DFR(x, adc, vref) (ADS_START | ADS_A2A1A0_d_ ## x \
+ | ADS_12_BIT | ADS_DFR | \
+ (adc ? ADS_PD10_ADC_ON : 0) | (vref ? ADS_PD10_REF_ON : 0))
+
+#define READ_Y(vref) (READ_12BIT_DFR(y, 1, vref))
+#define READ_Z1(vref) (READ_12BIT_DFR(z1, 1, vref))
+#define READ_Z2(vref) (READ_12BIT_DFR(z2, 1, vref))
+
+#define READ_X(vref) (READ_12BIT_DFR(x, 1, vref))
+#define PWRDOWN (READ_12BIT_DFR(y, 0, 0)) /* LAST */
+
+/* single-ended samples need to first power up reference voltage;
+ * we leave both ADC and VREF powered
+ */
+#define READ_12BIT_SER(x) (ADS_START | ADS_A2A1A0_ ## x \
+ | ADS_12_BIT | ADS_SER)
+
+#define REF_ON (READ_12BIT_DFR(x, 1, 1))
+#define REF_OFF (READ_12BIT_DFR(y, 0, 0))
+
+/* Must be called with ts->lock held */
+static void ads7846_stop(struct ads7846 *ts)
+{
+ if (!ts->disabled && !ts->suspended) {
+ /* Signal IRQ thread to stop polling and disable the handler. */
+ ts->stopped = true;
+ mb();
+ wake_up(&ts->wait);
+ disable_irq(ts->spi->irq);
+ }
+}
+
+/* Must be called with ts->lock held */
+static void ads7846_restart(struct ads7846 *ts)
+{
+ if (!ts->disabled && !ts->suspended) {
+ /* Tell IRQ thread that it may poll the device. */
+ ts->stopped = false;
+ mb();
+ enable_irq(ts->spi->irq);
+ }
+}
+
+/* Must be called with ts->lock held */
+static void __ads7846_disable(struct ads7846 *ts)
+{
+ ads7846_stop(ts);
+ regulator_disable(ts->reg);
+
+ /*
+ * We know the chip's in low power mode since we always
+ * leave it that way after every request
+ */
+}
+
+/* Must be called with ts->lock held */
+static void __ads7846_enable(struct ads7846 *ts)
+{
+ regulator_enable(ts->reg);
+ ads7846_restart(ts);
+}
+
+static void ads7846_disable(struct ads7846 *ts)
+{
+ mutex_lock(&ts->lock);
+
+ if (!ts->disabled) {
+
+ if (!ts->suspended)
+ __ads7846_disable(ts);
+
+ ts->disabled = true;
+ }
+
+ mutex_unlock(&ts->lock);
+}
+
+static void ads7846_enable(struct ads7846 *ts)
+{
+ mutex_lock(&ts->lock);
+
+ if (ts->disabled) {
+
+ ts->disabled = false;
+
+ if (!ts->suspended)
+ __ads7846_enable(ts);
+ }
+
+ mutex_unlock(&ts->lock);
+}
+
+/*--------------------------------------------------------------------------*/
+
+/*
+ * Non-touchscreen sensors only use single-ended conversions.
+ * The range is GND..vREF. The ads7843 and ads7835 must use external vREF;
+ * ads7846 lets that pin be unconnected, to use internal vREF.
+ */
+
+struct ser_req {
+ u8 ref_on;
+ u8 command;
+ u8 ref_off;
+ u16 scratch;
+ struct spi_message msg;
+ struct spi_transfer xfer[6];
+ /*
+ * DMA (thus cache coherency maintenance) requires the
+ * transfer buffers to live in their own cache lines.
+ */
+ __be16 sample ____cacheline_aligned;
+};
+
+struct ads7845_ser_req {
+ u8 command[3];
+ struct spi_message msg;
+ struct spi_transfer xfer[2];
+ /*
+ * DMA (thus cache coherency maintenance) requires the
+ * transfer buffers to live in their own cache lines.
+ */
+ u8 sample[3] ____cacheline_aligned;
+};
+
+static int ads7846_read12_ser(struct device *dev, unsigned command)
+{
+ struct spi_device *spi = to_spi_device(dev);
+ struct ads7846 *ts = dev_get_drvdata(dev);
+ struct ser_req *req;
+ int status;
+
+ req = kzalloc(sizeof *req, GFP_KERNEL);
+ if (!req)
+ return -ENOMEM;
+
+ spi_message_init(&req->msg);
+
+ /* maybe turn on internal vREF, and let it settle */
+ if (ts->use_internal) {
+ req->ref_on = REF_ON;
+ req->xfer[0].tx_buf = &req->ref_on;
+ req->xfer[0].len = 1;
+ spi_message_add_tail(&req->xfer[0], &req->msg);
+
+ req->xfer[1].rx_buf = &req->scratch;
+ req->xfer[1].len = 2;
+
+ /* for 1uF, settle for 800 usec; no cap, 100 usec. */
+ req->xfer[1].delay_usecs = ts->vref_delay_usecs;
+ spi_message_add_tail(&req->xfer[1], &req->msg);
+
+ /* Enable reference voltage */
+ command |= ADS_PD10_REF_ON;
+ }
+
+ /* Enable ADC in every case */
+ command |= ADS_PD10_ADC_ON;
+
+ /* take sample */
+ req->command = (u8) command;
+ req->xfer[2].tx_buf = &req->command;
+ req->xfer[2].len = 1;
+ spi_message_add_tail(&req->xfer[2], &req->msg);
+
+ req->xfer[3].rx_buf = &req->sample;
+ req->xfer[3].len = 2;
+ spi_message_add_tail(&req->xfer[3], &req->msg);
+
+ /* REVISIT: take a few more samples, and compare ... */
+
+ /* converter in low power mode & enable PENIRQ */
+ req->ref_off = PWRDOWN;
+ req->xfer[4].tx_buf = &req->ref_off;
+ req->xfer[4].len = 1;
+ spi_message_add_tail(&req->xfer[4], &req->msg);
+
+ req->xfer[5].rx_buf = &req->scratch;
+ req->xfer[5].len = 2;
+ CS_CHANGE(req->xfer[5]);
+ spi_message_add_tail(&req->xfer[5], &req->msg);
+
+ mutex_lock(&ts->lock);
+ ads7846_stop(ts);
+ status = spi_sync(spi, &req->msg);
+ ads7846_restart(ts);
+ mutex_unlock(&ts->lock);
+
+ if (status == 0) {
+ /* on-wire is a must-ignore bit, a BE12 value, then padding */
+ status = be16_to_cpu(req->sample);
+ status = status >> 3;
+ status &= 0x0fff;
+ }
+
+ kfree(req);
+ return status;
+}
+
+static int ads7845_read12_ser(struct device *dev, unsigned command)
+{
+ struct spi_device *spi = to_spi_device(dev);
+ struct ads7846 *ts = dev_get_drvdata(dev);
+ struct ads7845_ser_req *req;
+ int status;
+
+ req = kzalloc(sizeof *req, GFP_KERNEL);
+ if (!req)
+ return -ENOMEM;
+
+ spi_message_init(&req->msg);
+
+ req->command[0] = (u8) command;
+ req->xfer[0].tx_buf = req->command;
+ req->xfer[0].rx_buf = req->sample;
+ req->xfer[0].len = 3;
+ spi_message_add_tail(&req->xfer[0], &req->msg);
+
+ mutex_lock(&ts->lock);
+ ads7846_stop(ts);
+ status = spi_sync(spi, &req->msg);
+ ads7846_restart(ts);
+ mutex_unlock(&ts->lock);
+
+ if (status == 0) {
+ /* BE12 value, then padding */
+ status = be16_to_cpu(*((u16 *)&req->sample[1]));
+ status = status >> 3;
+ status &= 0x0fff;
+ }
+
+ kfree(req);
+ return status;
+}
+
+#if defined(CONFIG_HWMON) || defined(CONFIG_HWMON_MODULE)
+
+#define SHOW(name, var, adjust) static ssize_t \
+name ## _show(struct device *dev, struct device_attribute *attr, char *buf) \
+{ \
+ struct ads7846 *ts = dev_get_drvdata(dev); \
+ ssize_t v = ads7846_read12_ser(dev, \
+ READ_12BIT_SER(var)); \
+ if (v < 0) \
+ return v; \
+ return sprintf(buf, "%u\n", adjust(ts, v)); \
+} \
+static DEVICE_ATTR(name, S_IRUGO, name ## _show, NULL);
+
+
+/* Sysfs conventions report temperatures in millidegrees Celsius.
+ * ADS7846 could use the low-accuracy two-sample scheme, but can't do the high
+ * accuracy scheme without calibration data. For now we won't try either;
+ * userspace sees raw sensor values, and must scale/calibrate appropriately.
+ */
+static inline unsigned null_adjust(struct ads7846 *ts, ssize_t v)
+{
+ return v;
+}
+
+SHOW(temp0, temp0, null_adjust) /* temp1_input */
+SHOW(temp1, temp1, null_adjust) /* temp2_input */
+
+
+/* sysfs conventions report voltages in millivolts. We can convert voltages
+ * if we know vREF. userspace may need to scale vAUX to match the board's
+ * external resistors; we assume that vBATT only uses the internal ones.
+ */
+static inline unsigned vaux_adjust(struct ads7846 *ts, ssize_t v)
+{
+ unsigned retval = v;
+
+ /* external resistors may scale vAUX into 0..vREF */
+ retval *= ts->vref_mv;
+ retval = retval >> 12;
+
+ return retval;
+}
+
+static inline unsigned vbatt_adjust(struct ads7846 *ts, ssize_t v)
+{
+ unsigned retval = vaux_adjust(ts, v);
+
+ /* ads7846 has a resistor ladder to scale this signal down */
+ if (ts->model == 7846)
+ retval *= 4;
+
+ return retval;
+}
+
+SHOW(in0_input, vaux, vaux_adjust)
+SHOW(in1_input, vbatt, vbatt_adjust)
+
+static struct attribute *ads7846_attributes[] = {
+ &dev_attr_temp0.attr,
+ &dev_attr_temp1.attr,
+ &dev_attr_in0_input.attr,
+ &dev_attr_in1_input.attr,
+ NULL,
+};
+
+static struct attribute_group ads7846_attr_group = {
+ .attrs = ads7846_attributes,
+};
+
+static struct attribute *ads7843_attributes[] = {
+ &dev_attr_in0_input.attr,
+ &dev_attr_in1_input.attr,
+ NULL,
+};
+
+static struct attribute_group ads7843_attr_group = {
+ .attrs = ads7843_attributes,
+};
+
+static struct attribute *ads7845_attributes[] = {
+ &dev_attr_in0_input.attr,
+ NULL,
+};
+
+static struct attribute_group ads7845_attr_group = {
+ .attrs = ads7845_attributes,
+};
+
+static int ads784x_hwmon_register(struct spi_device *spi, struct ads7846 *ts)
+{
+ struct device *hwmon;
+ int err;
+
+ /* hwmon sensors need a reference voltage */
+ switch (ts->model) {
+ case 7846:
+ if (!ts->vref_mv) {
+ dev_dbg(&spi->dev, "assuming 2.5V internal vREF\n");
+ ts->vref_mv = 2500;
+ ts->use_internal = true;
+ }
+ break;
+ case 7845:
+ case 7843:
+ if (!ts->vref_mv) {
+ dev_warn(&spi->dev,
+ "external vREF for ADS%d not specified\n",
+ ts->model);
+ return 0;
+ }
+ break;
+ }
+
+ /* different chips have different sensor groups */
+ switch (ts->model) {
+ case 7846:
+ ts->attr_group = &ads7846_attr_group;
+ break;
+ case 7845:
+ ts->attr_group = &ads7845_attr_group;
+ break;
+ case 7843:
+ ts->attr_group = &ads7843_attr_group;
+ break;
+ default:
+ dev_dbg(&spi->dev, "ADS%d not recognized\n", ts->model);
+ return 0;
+ }
+
+ err = sysfs_create_group(&spi->dev.kobj, ts->attr_group);
+ if (err)
+ return err;
+
+ hwmon = hwmon_device_register(&spi->dev);
+ if (IS_ERR(hwmon)) {
+ sysfs_remove_group(&spi->dev.kobj, ts->attr_group);
+ return PTR_ERR(hwmon);
+ }
+
+ ts->hwmon = hwmon;
+ return 0;
+}
+
+static void ads784x_hwmon_unregister(struct spi_device *spi,
+ struct ads7846 *ts)
+{
+ if (ts->hwmon) {
+ sysfs_remove_group(&spi->dev.kobj, ts->attr_group);
+ hwmon_device_unregister(ts->hwmon);
+ }
+}
+
+#else
+static inline int ads784x_hwmon_register(struct spi_device *spi,
+ struct ads7846 *ts)
+{
+ return 0;
+}
+
+static inline void ads784x_hwmon_unregister(struct spi_device *spi,
+ struct ads7846 *ts)
+{
+}
+#endif
+
+static ssize_t ads7846_pen_down_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct ads7846 *ts = dev_get_drvdata(dev);
+
+ return sprintf(buf, "%u\n", ts->pendown);
+}
+
+static DEVICE_ATTR(pen_down, S_IRUGO, ads7846_pen_down_show, NULL);
+
+static ssize_t ads7846_disable_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct ads7846 *ts = dev_get_drvdata(dev);
+
+ return sprintf(buf, "%u\n", ts->disabled);
+}
+
+static ssize_t ads7846_disable_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct ads7846 *ts = dev_get_drvdata(dev);
+ unsigned long i;
+
+ if (strict_strtoul(buf, 10, &i))
+ return -EINVAL;
+
+ if (i)
+ ads7846_disable(ts);
+ else
+ ads7846_enable(ts);
+
+ return count;
+}
+
+static DEVICE_ATTR(disable, 0664, ads7846_disable_show, ads7846_disable_store);
+
+static struct attribute *ads784x_attributes[] = {
+ &dev_attr_pen_down.attr,
+ &dev_attr_disable.attr,
+ NULL,
+};
+
+static struct attribute_group ads784x_attr_group = {
+ .attrs = ads784x_attributes,
+};
+
+/*--------------------------------------------------------------------------*/
+
+static int get_pendown_state(struct ads7846 *ts)
+{
+ if (ts->get_pendown_state)
+ return ts->get_pendown_state();
+
+ return !gpio_get_value(ts->gpio_pendown);
+}
+
+static void null_wait_for_sync(void)
+{
+}
+
+static int ads7846_debounce_filter(void *ads, int data_idx, int *val)
+{
+ struct ads7846 *ts = ads;
+
+ if (!ts->read_cnt || (abs(ts->last_read - *val) > ts->debounce_tol)) {
+ /* Start over collecting consistent readings. */
+ ts->read_rep = 0;
+ /*
+ * Repeat it, if this was the first read or the read
+ * wasn't consistent enough.
+ */
+ if (ts->read_cnt < ts->debounce_max) {
+ ts->last_read = *val;
+ ts->read_cnt++;
+ return ADS7846_FILTER_REPEAT;
+ } else {
+ /*
+ * Maximum number of debouncing reached and still
+ * not enough number of consistent readings. Abort
+ * the whole sample, repeat it in the next sampling
+ * period.
+ */
+ ts->read_cnt = 0;
+ return ADS7846_FILTER_IGNORE;
+ }
+ } else {
+ if (++ts->read_rep > ts->debounce_rep) {
+ /*
+ * Got a good reading for this coordinate,
+ * go for the next one.
+ */
+ ts->read_cnt = 0;
+ ts->read_rep = 0;
+ return ADS7846_FILTER_OK;
+ } else {
+ /* Read more values that are consistent. */
+ ts->read_cnt++;
+ return ADS7846_FILTER_REPEAT;
+ }
+ }
+}
+
+static int ads7846_no_filter(void *ads, int data_idx, int *val)
+{
+ return ADS7846_FILTER_OK;
+}
+
+static int ads7846_get_value(struct ads7846 *ts, struct spi_message *m)
+{
+ struct spi_transfer *t =
+ list_entry(m->transfers.prev, struct spi_transfer, transfer_list);
+
+ if (ts->model == 7845) {
+ return be16_to_cpup((__be16 *)&(((char*)t->rx_buf)[1])) >> 3;
+ } else {
+ /*
+ * adjust: on-wire is a must-ignore bit, a BE12 value, then
+ * padding; built from two 8 bit values written msb-first.
+ */
+ return be16_to_cpup((__be16 *)t->rx_buf) >> 3;
+ }
+}
+
+static void ads7846_update_value(struct spi_message *m, int val)
+{
+ struct spi_transfer *t =
+ list_entry(m->transfers.prev, struct spi_transfer, transfer_list);
+
+ *(u16 *)t->rx_buf = val;
+}
+
+static void ads7846_read_state(struct ads7846 *ts)
+{
+ struct ads7846_packet *packet = ts->packet;
+ struct spi_message *m;
+ int msg_idx = 0;
+ int val;
+ int action;
+ int error;
+
+ while (msg_idx < ts->msg_count) {
+
+ ts->wait_for_sync();
+
+ m = &ts->msg[msg_idx];
+ error = spi_sync(ts->spi, m);
+ if (error) {
+ dev_err(&ts->spi->dev, "spi_async --> %d\n", error);
+ packet->tc.ignore = true;
+ return;
+ }
+
+ /*
+ * Last message is power down request, no need to convert
+ * or filter the value.
+ */
+ if (msg_idx < ts->msg_count - 1) {
+
+ val = ads7846_get_value(ts, m);
+
+ action = ts->filter(ts->filter_data, msg_idx, &val);
+ switch (action) {
+ case ADS7846_FILTER_REPEAT:
+ continue;
+
+ case ADS7846_FILTER_IGNORE:
+ packet->tc.ignore = true;
+ msg_idx = ts->msg_count - 1;
+ continue;
+
+ case ADS7846_FILTER_OK:
+ ads7846_update_value(m, val);
+ packet->tc.ignore = false;
+ msg_idx++;
+ break;
+
+ default:
+ BUG();
+ }
+ } else {
+ msg_idx++;
+ }
+ }
+}
+
+static void ads7846_report_state(struct ads7846 *ts)
+{
+ struct ads7846_packet *packet = ts->packet;
+ unsigned int Rt;
+ u16 x, y, z1, z2;
+
+ /*
+ * ads7846_get_value() does in-place conversion (including byte swap)
+ * from on-the-wire format as part of debouncing to get stable
+ * readings.
+ */
+ if (ts->model == 7845) {
+ x = *(u16 *)packet->tc.x_buf;
+ y = *(u16 *)packet->tc.y_buf;
+ z1 = 0;
+ z2 = 0;
+ } else {
+ x = packet->tc.x;
+ y = packet->tc.y;
+ z1 = packet->tc.z1;
+ z2 = packet->tc.z2;
+ }
+
+ /* range filtering */
+ if (x == MAX_12BIT)
+ x = 0;
+
+ if (ts->model == 7843) {
+ Rt = ts->pressure_max / 2;
+ } else if (ts->model == 7845) {
+ if (get_pendown_state(ts))
+ Rt = ts->pressure_max / 2;
+ else
+ Rt = 0;
+ dev_vdbg(&ts->spi->dev, "x/y: %d/%d, PD %d\n", x, y, Rt);
+ } else if (likely(x && z1)) {
+ /* compute touch pressure resistance using equation #2 */
+ Rt = z2;
+ Rt -= z1;
+ Rt *= x;
+ Rt *= ts->x_plate_ohms;
+ Rt /= z1;
+ Rt = (Rt + 2047) >> 12;
+ } else {
+ Rt = 0;
+ }
+
+ /*
+ * Sample found inconsistent by debouncing or pressure is beyond
+ * the maximum. Don't report it to user space, repeat at least
+ * once more the measurement
+ */
+ if (packet->tc.ignore || Rt > ts->pressure_max) {
+ dev_vdbg(&ts->spi->dev, "ignored %d pressure %d\n",
+ packet->tc.ignore, Rt);
+ return;
+ }
+
+ /*
+ * Maybe check the pendown state before reporting. This discards
+ * false readings when the pen is lifted.
+ */
+ if (ts->penirq_recheck_delay_usecs) {
+ udelay(ts->penirq_recheck_delay_usecs);
+ if (!get_pendown_state(ts))
+ Rt = 0;
+ }
+
+ /*
+ * NOTE: We can't rely on the pressure to determine the pen down
+ * state, even this controller has a pressure sensor. The pressure
+ * value can fluctuate for quite a while after lifting the pen and
+ * in some cases may not even settle at the expected value.
+ *
+ * The only safe way to check for the pen up condition is in the
+ * timer by reading the pen signal state (it's a GPIO _and_ IRQ).
+ */
+ if (Rt) {
+ struct input_dev *input = ts->input;
+
+ if (ts->swap_xy)
+ swap(x, y);
+
+ if (!ts->pendown) {
+ input_report_key(input, BTN_TOUCH, 1);
+ ts->pendown = true;
+ dev_vdbg(&ts->spi->dev, "DOWN\n");
+ }
+
+ input_report_abs(input, ABS_X, x);
+ input_report_abs(input, ABS_Y, y);
+ input_report_abs(input, ABS_PRESSURE, ts->pressure_max - Rt);
+
+ input_sync(input);
+ dev_vdbg(&ts->spi->dev, "%4d/%4d/%4d\n", x, y, Rt);
+ }
+}
+
+static irqreturn_t ads7846_hard_irq(int irq, void *handle)
+{
+ struct ads7846 *ts = handle;
+
+ return get_pendown_state(ts) ? IRQ_WAKE_THREAD : IRQ_HANDLED;
+}
+
+
+static irqreturn_t ads7846_irq(int irq, void *handle)
+{
+ struct ads7846 *ts = handle;
+
+ /* Start with a small delay before checking pendown state */
+ msleep(TS_POLL_DELAY);
+
+ while (!ts->stopped && get_pendown_state(ts)) {
+
+ /* pen is down, continue with the measurement */
+ ads7846_read_state(ts);
+
+ if (!ts->stopped)
+ ads7846_report_state(ts);
+
+ wait_event_timeout(ts->wait, ts->stopped,
+ msecs_to_jiffies(TS_POLL_PERIOD));
+ }
+
+ if (ts->pendown) {
+ struct input_dev *input = ts->input;
+
+ input_report_key(input, BTN_TOUCH, 0);
+ input_report_abs(input, ABS_PRESSURE, 0);
+ input_sync(input);
+
+ ts->pendown = false;
+ dev_vdbg(&ts->spi->dev, "UP\n");
+ }
+
+ return IRQ_HANDLED;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int ads7846_suspend(struct device *dev)
+{
+ struct ads7846 *ts = dev_get_drvdata(dev);
+
+ mutex_lock(&ts->lock);
+
+ if (!ts->suspended) {
+
+ if (!ts->disabled)
+ __ads7846_disable(ts);
+
+ if (device_may_wakeup(&ts->spi->dev))
+ enable_irq_wake(ts->spi->irq);
+
+ ts->suspended = true;
+ }
+
+ mutex_unlock(&ts->lock);
+
+ return 0;
+}
+
+static int ads7846_resume(struct device *dev)
+{
+ struct ads7846 *ts = dev_get_drvdata(dev);
+
+ mutex_lock(&ts->lock);
+
+ if (ts->suspended) {
+
+ ts->suspended = false;
+
+ if (device_may_wakeup(&ts->spi->dev))
+ disable_irq_wake(ts->spi->irq);
+
+ if (!ts->disabled)
+ __ads7846_enable(ts);
+ }
+
+ mutex_unlock(&ts->lock);
+
+ return 0;
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(ads7846_pm, ads7846_suspend, ads7846_resume);
+
+static int __devinit ads7846_setup_pendown(struct spi_device *spi, struct ads7846 *ts)
+{
+ struct ads7846_platform_data *pdata = spi->dev.platform_data;
+ int err;
+
+ /*
+ * REVISIT when the irq can be triggered active-low, or if for some
+ * reason the touchscreen isn't hooked up, we don't need to access
+ * the pendown state.
+ */
+
+ if (pdata->get_pendown_state) {
+ ts->get_pendown_state = pdata->get_pendown_state;
+ } else if (gpio_is_valid(pdata->gpio_pendown)) {
+
+ err = gpio_request_one(pdata->gpio_pendown, GPIOF_IN,
+ "ads7846_pendown");
+ if (err) {
+ dev_err(&spi->dev,
+ "failed to request/setup pendown GPIO%d: %d\n",
+ pdata->gpio_pendown, err);
+ return err;
+ }
+
+ ts->gpio_pendown = pdata->gpio_pendown;
+
+ } else {
+ dev_err(&spi->dev, "no get_pendown_state nor gpio_pendown?\n");
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+/*
+ * Set up the transfers to read touchscreen state; this assumes we
+ * use formula #2 for pressure, not #3.
+ */
+static void __devinit ads7846_setup_spi_msg(struct ads7846 *ts,
+ const struct ads7846_platform_data *pdata)
+{
+ struct spi_message *m = &ts->msg[0];
+ struct spi_transfer *x = ts->xfer;
+ struct ads7846_packet *packet = ts->packet;
+ int vref = pdata->keep_vref_on;
+
+ if (ts->model == 7873) {
+ /*
+ * The AD7873 is almost identical to the ADS7846
+ * keep VREF off during differential/ratiometric
+ * conversion modes.
+ */
+ ts->model = 7846;
+ vref = 0;
+ }
+
+ ts->msg_count = 1;
+ spi_message_init(m);
+ m->context = ts;
+
+ if (ts->model == 7845) {
+ packet->read_y_cmd[0] = READ_Y(vref);
+ packet->read_y_cmd[1] = 0;
+ packet->read_y_cmd[2] = 0;
+ x->tx_buf = &packet->read_y_cmd[0];
+ x->rx_buf = &packet->tc.y_buf[0];
+ x->len = 3;
+ spi_message_add_tail(x, m);
+ } else {
+ /* y- still on; turn on only y+ (and ADC) */
+ packet->read_y = READ_Y(vref);
+ x->tx_buf = &packet->read_y;
+ x->len = 1;
+ spi_message_add_tail(x, m);
+
+ x++;
+ x->rx_buf = &packet->tc.y;
+ x->len = 2;
+ spi_message_add_tail(x, m);
+ }
+
+ /*
+ * The first sample after switching drivers can be low quality;
+ * optionally discard it, using a second one after the signals
+ * have had enough time to stabilize.
+ */
+ if (pdata->settle_delay_usecs) {
+ x->delay_usecs = pdata->settle_delay_usecs;
+
+ x++;
+ x->tx_buf = &packet->read_y;
+ x->len = 1;
+ spi_message_add_tail(x, m);
+
+ x++;
+ x->rx_buf = &packet->tc.y;
+ x->len = 2;
+ spi_message_add_tail(x, m);
+ }
+
+ ts->msg_count++;
+ m++;
+ spi_message_init(m);
+ m->context = ts;
+
+ if (ts->model == 7845) {
+ x++;
+ packet->read_x_cmd[0] = READ_X(vref);
+ packet->read_x_cmd[1] = 0;
+ packet->read_x_cmd[2] = 0;
+ x->tx_buf = &packet->read_x_cmd[0];
+ x->rx_buf = &packet->tc.x_buf[0];
+ x->len = 3;
+ spi_message_add_tail(x, m);
+ } else {
+ /* turn y- off, x+ on, then leave in lowpower */
+ x++;
+ packet->read_x = READ_X(vref);
+ x->tx_buf = &packet->read_x;
+ x->len = 1;
+ spi_message_add_tail(x, m);
+
+ x++;
+ x->rx_buf = &packet->tc.x;
+ x->len = 2;
+ spi_message_add_tail(x, m);
+ }
+
+ /* ... maybe discard first sample ... */
+ if (pdata->settle_delay_usecs) {
+ x->delay_usecs = pdata->settle_delay_usecs;
+
+ x++;
+ x->tx_buf = &packet->read_x;
+ x->len = 1;
+ spi_message_add_tail(x, m);
+
+ x++;
+ x->rx_buf = &packet->tc.x;
+ x->len = 2;
+ spi_message_add_tail(x, m);
+ }
+
+ /* turn y+ off, x- on; we'll use formula #2 */
+ if (ts->model == 7846) {
+ ts->msg_count++;
+ m++;
+ spi_message_init(m);
+ m->context = ts;
+
+ x++;
+ packet->read_z1 = READ_Z1(vref);
+ x->tx_buf = &packet->read_z1;
+ x->len = 1;
+ spi_message_add_tail(x, m);
+
+ x++;
+ x->rx_buf = &packet->tc.z1;
+ x->len = 2;
+ spi_message_add_tail(x, m);
+
+ /* ... maybe discard first sample ... */
+ if (pdata->settle_delay_usecs) {
+ x->delay_usecs = pdata->settle_delay_usecs;
+
+ x++;
+ x->tx_buf = &packet->read_z1;
+ x->len = 1;
+ spi_message_add_tail(x, m);
+
+ x++;
+ x->rx_buf = &packet->tc.z1;
+ x->len = 2;
+ spi_message_add_tail(x, m);
+ }
+
+ ts->msg_count++;
+ m++;
+ spi_message_init(m);
+ m->context = ts;
+
+ x++;
+ packet->read_z2 = READ_Z2(vref);
+ x->tx_buf = &packet->read_z2;
+ x->len = 1;
+ spi_message_add_tail(x, m);
+
+ x++;
+ x->rx_buf = &packet->tc.z2;
+ x->len = 2;
+ spi_message_add_tail(x, m);
+
+ /* ... maybe discard first sample ... */
+ if (pdata->settle_delay_usecs) {
+ x->delay_usecs = pdata->settle_delay_usecs;
+
+ x++;
+ x->tx_buf = &packet->read_z2;
+ x->len = 1;
+ spi_message_add_tail(x, m);
+
+ x++;
+ x->rx_buf = &packet->tc.z2;
+ x->len = 2;
+ spi_message_add_tail(x, m);
+ }
+ }
+
+ /* power down */
+ ts->msg_count++;
+ m++;
+ spi_message_init(m);
+ m->context = ts;
+
+ if (ts->model == 7845) {
+ x++;
+ packet->pwrdown_cmd[0] = PWRDOWN;
+ packet->pwrdown_cmd[1] = 0;
+ packet->pwrdown_cmd[2] = 0;
+ x->tx_buf = &packet->pwrdown_cmd[0];
+ x->len = 3;
+ } else {
+ x++;
+ packet->pwrdown = PWRDOWN;
+ x->tx_buf = &packet->pwrdown;
+ x->len = 1;
+ spi_message_add_tail(x, m);
+
+ x++;
+ x->rx_buf = &packet->dummy;
+ x->len = 2;
+ }
+
+ CS_CHANGE(*x);
+ spi_message_add_tail(x, m);
+}
+
+static int __devinit ads7846_probe(struct spi_device *spi)
+{
+ struct ads7846 *ts;
+ struct ads7846_packet *packet;
+ struct input_dev *input_dev;
+ struct ads7846_platform_data *pdata = spi->dev.platform_data;
+ unsigned long irq_flags;
+ int err;
+
+ if (!spi->irq) {
+ dev_dbg(&spi->dev, "no IRQ?\n");
+ return -ENODEV;
+ }
+
+ if (!pdata) {
+ dev_dbg(&spi->dev, "no platform data?\n");
+ return -ENODEV;
+ }
+
+ /* don't exceed max specified sample rate */
+ if (spi->max_speed_hz > (125000 * SAMPLE_BITS)) {
+ dev_dbg(&spi->dev, "f(sample) %d KHz?\n",
+ (spi->max_speed_hz/SAMPLE_BITS)/1000);
+ return -EINVAL;
+ }
+
+ /* We'd set TX word size 8 bits and RX word size to 13 bits ... except
+ * that even if the hardware can do that, the SPI controller driver
+ * may not. So we stick to very-portable 8 bit words, both RX and TX.
+ */
+ spi->bits_per_word = 8;
+ spi->mode = SPI_MODE_0;
+ err = spi_setup(spi);
+ if (err < 0)
+ return err;
+
+ ts = kzalloc(sizeof(struct ads7846), GFP_KERNEL);
+ packet = kzalloc(sizeof(struct ads7846_packet), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!ts || !packet || !input_dev) {
+ err = -ENOMEM;
+ goto err_free_mem;
+ }
+
+ dev_set_drvdata(&spi->dev, ts);
+
+ ts->packet = packet;
+ ts->spi = spi;
+ ts->input = input_dev;
+ ts->vref_mv = pdata->vref_mv;
+ ts->swap_xy = pdata->swap_xy;
+
+ mutex_init(&ts->lock);
+ init_waitqueue_head(&ts->wait);
+
+ ts->model = pdata->model ? : 7846;
+ ts->vref_delay_usecs = pdata->vref_delay_usecs ? : 100;
+ ts->x_plate_ohms = pdata->x_plate_ohms ? : 400;
+ ts->pressure_max = pdata->pressure_max ? : ~0;
+
+ if (pdata->filter != NULL) {
+ if (pdata->filter_init != NULL) {
+ err = pdata->filter_init(pdata, &ts->filter_data);
+ if (err < 0)
+ goto err_free_mem;
+ }
+ ts->filter = pdata->filter;
+ ts->filter_cleanup = pdata->filter_cleanup;
+ } else if (pdata->debounce_max) {
+ ts->debounce_max = pdata->debounce_max;
+ if (ts->debounce_max < 2)
+ ts->debounce_max = 2;
+ ts->debounce_tol = pdata->debounce_tol;
+ ts->debounce_rep = pdata->debounce_rep;
+ ts->filter = ads7846_debounce_filter;
+ ts->filter_data = ts;
+ } else {
+ ts->filter = ads7846_no_filter;
+ }
+
+ err = ads7846_setup_pendown(spi, ts);
+ if (err)
+ goto err_cleanup_filter;
+
+ if (pdata->penirq_recheck_delay_usecs)
+ ts->penirq_recheck_delay_usecs =
+ pdata->penirq_recheck_delay_usecs;
+
+ ts->wait_for_sync = pdata->wait_for_sync ? : null_wait_for_sync;
+
+ snprintf(ts->phys, sizeof(ts->phys), "%s/input0", dev_name(&spi->dev));
+ snprintf(ts->name, sizeof(ts->name), "ADS%d Touchscreen", ts->model);
+
+ input_dev->name = ts->name;
+ input_dev->phys = ts->phys;
+ input_dev->dev.parent = &spi->dev;
+
+ input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
+ input_dev->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH);
+ input_set_abs_params(input_dev, ABS_X,
+ pdata->x_min ? : 0,
+ pdata->x_max ? : MAX_12BIT,
+ 0, 0);
+ input_set_abs_params(input_dev, ABS_Y,
+ pdata->y_min ? : 0,
+ pdata->y_max ? : MAX_12BIT,
+ 0, 0);
+ input_set_abs_params(input_dev, ABS_PRESSURE,
+ pdata->pressure_min, pdata->pressure_max, 0, 0);
+
+ ads7846_setup_spi_msg(ts, pdata);
+
+ ts->reg = regulator_get(&spi->dev, "vcc");
+ if (IS_ERR(ts->reg)) {
+ err = PTR_ERR(ts->reg);
+ dev_err(&spi->dev, "unable to get regulator: %d\n", err);
+ goto err_free_gpio;
+ }
+
+ err = regulator_enable(ts->reg);
+ if (err) {
+ dev_err(&spi->dev, "unable to enable regulator: %d\n", err);
+ goto err_put_regulator;
+ }
+
+ irq_flags = pdata->irq_flags ? : IRQF_TRIGGER_FALLING;
+ irq_flags |= IRQF_ONESHOT;
+
+ err = request_threaded_irq(spi->irq, ads7846_hard_irq, ads7846_irq,
+ irq_flags, spi->dev.driver->name, ts);
+ if (err && !pdata->irq_flags) {
+ dev_info(&spi->dev,
+ "trying pin change workaround on irq %d\n", spi->irq);
+ irq_flags |= IRQF_TRIGGER_RISING;
+ err = request_threaded_irq(spi->irq,
+ ads7846_hard_irq, ads7846_irq,
+ irq_flags, spi->dev.driver->name, ts);
+ }
+
+ if (err) {
+ dev_dbg(&spi->dev, "irq %d busy?\n", spi->irq);
+ goto err_disable_regulator;
+ }
+
+ err = ads784x_hwmon_register(spi, ts);
+ if (err)
+ goto err_free_irq;
+
+ dev_info(&spi->dev, "touchscreen, irq %d\n", spi->irq);
+
+ /*
+ * Take a first sample, leaving nPENIRQ active and vREF off; avoid
+ * the touchscreen, in case it's not connected.
+ */
+ if (ts->model == 7845)
+ ads7845_read12_ser(&spi->dev, PWRDOWN);
+ else
+ (void) ads7846_read12_ser(&spi->dev, READ_12BIT_SER(vaux));
+
+ err = sysfs_create_group(&spi->dev.kobj, &ads784x_attr_group);
+ if (err)
+ goto err_remove_hwmon;
+
+ err = input_register_device(input_dev);
+ if (err)
+ goto err_remove_attr_group;
+
+ device_init_wakeup(&spi->dev, pdata->wakeup);
+
+ return 0;
+
+ err_remove_attr_group:
+ sysfs_remove_group(&spi->dev.kobj, &ads784x_attr_group);
+ err_remove_hwmon:
+ ads784x_hwmon_unregister(spi, ts);
+ err_free_irq:
+ free_irq(spi->irq, ts);
+ err_disable_regulator:
+ regulator_disable(ts->reg);
+ err_put_regulator:
+ regulator_put(ts->reg);
+ err_free_gpio:
+ if (!ts->get_pendown_state)
+ gpio_free(ts->gpio_pendown);
+ err_cleanup_filter:
+ if (ts->filter_cleanup)
+ ts->filter_cleanup(ts->filter_data);
+ err_free_mem:
+ input_free_device(input_dev);
+ kfree(packet);
+ kfree(ts);
+ return err;
+}
+
+static int __devexit ads7846_remove(struct spi_device *spi)
+{
+ struct ads7846 *ts = dev_get_drvdata(&spi->dev);
+
+ device_init_wakeup(&spi->dev, false);
+
+ sysfs_remove_group(&spi->dev.kobj, &ads784x_attr_group);
+
+ ads7846_disable(ts);
+ free_irq(ts->spi->irq, ts);
+
+ input_unregister_device(ts->input);
+
+ ads784x_hwmon_unregister(spi, ts);
+
+ regulator_disable(ts->reg);
+ regulator_put(ts->reg);
+
+ if (!ts->get_pendown_state) {
+ /*
+ * If we are not using specialized pendown method we must
+ * have been relying on gpio we set up ourselves.
+ */
+ gpio_free(ts->gpio_pendown);
+ }
+
+ if (ts->filter_cleanup)
+ ts->filter_cleanup(ts->filter_data);
+
+ kfree(ts->packet);
+ kfree(ts);
+
+ dev_dbg(&spi->dev, "unregistered touchscreen\n");
+
+ return 0;
+}
+
+static struct spi_driver ads7846_driver = {
+ .driver = {
+ .name = "ads7846",
+ .bus = &spi_bus_type,
+ .owner = THIS_MODULE,
+ .pm = &ads7846_pm,
+ },
+ .probe = ads7846_probe,
+ .remove = __devexit_p(ads7846_remove),
+};
+
+static int __init ads7846_init(void)
+{
+ return spi_register_driver(&ads7846_driver);
+}
+module_init(ads7846_init);
+
+static void __exit ads7846_exit(void)
+{
+ spi_unregister_driver(&ads7846_driver);
+}
+module_exit(ads7846_exit);
+
+MODULE_DESCRIPTION("ADS7846 TouchScreen Driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("spi:ads7846");
diff --git a/drivers/input/touchscreen/atmel-wm97xx.c b/drivers/input/touchscreen/atmel-wm97xx.c
new file mode 100644
index 0000000..8034cbb
--- /dev/null
+++ b/drivers/input/touchscreen/atmel-wm97xx.c
@@ -0,0 +1,447 @@
+/*
+ * Atmel AT91 and AVR32 continuous touch screen driver for Wolfson WM97xx AC97
+ * codecs.
+ *
+ * Copyright (C) 2008 - 2009 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ */
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/irq.h>
+#include <linux/interrupt.h>
+#include <linux/wm97xx.h>
+#include <linux/timer.h>
+#include <linux/gpio.h>
+#include <linux/io.h>
+#include <linux/slab.h>
+
+#define AC97C_ICA 0x10
+#define AC97C_CBRHR 0x30
+#define AC97C_CBSR 0x38
+#define AC97C_CBMR 0x3c
+#define AC97C_IER 0x54
+#define AC97C_IDR 0x58
+
+#define AC97C_RXRDY (1 << 4)
+#define AC97C_OVRUN (1 << 5)
+
+#define AC97C_CMR_SIZE_20 (0 << 16)
+#define AC97C_CMR_SIZE_18 (1 << 16)
+#define AC97C_CMR_SIZE_16 (2 << 16)
+#define AC97C_CMR_SIZE_10 (3 << 16)
+#define AC97C_CMR_CEM_LITTLE (1 << 18)
+#define AC97C_CMR_CEM_BIG (0 << 18)
+#define AC97C_CMR_CENA (1 << 21)
+
+#define AC97C_INT_CBEVT (1 << 4)
+
+#define AC97C_SR_CAEVT (1 << 3)
+
+#define AC97C_CH_MASK(slot) \
+ (0x7 << (3 * (slot - 3)))
+#define AC97C_CH_ASSIGN(slot, channel) \
+ (AC97C_CHANNEL_##channel << (3 * (slot - 3)))
+#define AC97C_CHANNEL_NONE 0x0
+#define AC97C_CHANNEL_B 0x2
+
+#define ac97c_writel(chip, reg, val) \
+ __raw_writel((val), (chip)->regs + AC97C_##reg)
+#define ac97c_readl(chip, reg) \
+ __raw_readl((chip)->regs + AC97C_##reg)
+
+#ifdef CONFIG_CPU_AT32AP700X
+#define ATMEL_WM97XX_AC97C_IOMEM (0xfff02800)
+#define ATMEL_WM97XX_AC97C_IRQ (29)
+#define ATMEL_WM97XX_GPIO_DEFAULT (32+16) /* Pin 16 on port B. */
+#else
+#error Unknown CPU, this driver only supports AT32AP700X CPUs.
+#endif
+
+struct continuous {
+ u16 id; /* codec id */
+ u8 code; /* continuous code */
+ u8 reads; /* number of coord reads per read cycle */
+ u32 speed; /* number of coords per second */
+};
+
+#define WM_READS(sp) ((sp / HZ) + 1)
+
+static const struct continuous cinfo[] = {
+ {WM9705_ID2, 0, WM_READS(94), 94},
+ {WM9705_ID2, 1, WM_READS(188), 188},
+ {WM9705_ID2, 2, WM_READS(375), 375},
+ {WM9705_ID2, 3, WM_READS(750), 750},
+ {WM9712_ID2, 0, WM_READS(94), 94},
+ {WM9712_ID2, 1, WM_READS(188), 188},
+ {WM9712_ID2, 2, WM_READS(375), 375},
+ {WM9712_ID2, 3, WM_READS(750), 750},
+ {WM9713_ID2, 0, WM_READS(94), 94},
+ {WM9713_ID2, 1, WM_READS(120), 120},
+ {WM9713_ID2, 2, WM_READS(154), 154},
+ {WM9713_ID2, 3, WM_READS(188), 188},
+};
+
+/* Continuous speed index. */
+static int sp_idx;
+
+/*
+ * Pen sampling frequency (Hz) in continuous mode.
+ */
+static int cont_rate = 188;
+module_param(cont_rate, int, 0);
+MODULE_PARM_DESC(cont_rate, "Sampling rate in continuous mode (Hz)");
+
+/*
+ * Pen down detection.
+ *
+ * This driver can either poll or use an interrupt to indicate a pen down
+ * event. If the irq request fails then it will fall back to polling mode.
+ */
+static int pen_int = 1;
+module_param(pen_int, int, 0);
+MODULE_PARM_DESC(pen_int, "Pen down detection (1 = interrupt, 0 = polling)");
+
+/*
+ * Pressure readback.
+ *
+ * Set to 1 to read back pen down pressure.
+ */
+static int pressure;
+module_param(pressure, int, 0);
+MODULE_PARM_DESC(pressure, "Pressure readback (1 = pressure, 0 = no pressure)");
+
+/*
+ * AC97 touch data slot.
+ *
+ * Touch screen readback data ac97 slot.
+ */
+static int ac97_touch_slot = 5;
+module_param(ac97_touch_slot, int, 0);
+MODULE_PARM_DESC(ac97_touch_slot, "Touch screen data slot AC97 number");
+
+/*
+ * GPIO line number.
+ *
+ * Set to GPIO number where the signal from the WM97xx device is hooked up.
+ */
+static int atmel_gpio_line = ATMEL_WM97XX_GPIO_DEFAULT;
+module_param(atmel_gpio_line, int, 0);
+MODULE_PARM_DESC(atmel_gpio_line, "GPIO line number connected to WM97xx");
+
+struct atmel_wm97xx {
+ struct wm97xx *wm;
+ struct timer_list pen_timer;
+ void __iomem *regs;
+ unsigned long ac97c_irq;
+ unsigned long gpio_pen;
+ unsigned long gpio_irq;
+ unsigned short x;
+ unsigned short y;
+};
+
+static irqreturn_t atmel_wm97xx_channel_b_interrupt(int irq, void *dev_id)
+{
+ struct atmel_wm97xx *atmel_wm97xx = dev_id;
+ struct wm97xx *wm = atmel_wm97xx->wm;
+ int status = ac97c_readl(atmel_wm97xx, CBSR);
+ irqreturn_t retval = IRQ_NONE;
+
+ if (status & AC97C_OVRUN) {
+ dev_dbg(&wm->touch_dev->dev, "AC97C overrun\n");
+ ac97c_readl(atmel_wm97xx, CBRHR);
+ retval = IRQ_HANDLED;
+ } else if (status & AC97C_RXRDY) {
+ u16 data;
+ u16 value;
+ u16 source;
+ u16 pen_down;
+
+ data = ac97c_readl(atmel_wm97xx, CBRHR);
+ value = data & 0x0fff;
+ source = data & WM97XX_ADCSEL_MASK;
+ pen_down = (data & WM97XX_PEN_DOWN) >> 8;
+
+ if (source == WM97XX_ADCSEL_X)
+ atmel_wm97xx->x = value;
+ if (source == WM97XX_ADCSEL_Y)
+ atmel_wm97xx->y = value;
+
+ if (!pressure && source == WM97XX_ADCSEL_Y) {
+ input_report_abs(wm->input_dev, ABS_X, atmel_wm97xx->x);
+ input_report_abs(wm->input_dev, ABS_Y, atmel_wm97xx->y);
+ input_report_key(wm->input_dev, BTN_TOUCH, pen_down);
+ input_sync(wm->input_dev);
+ } else if (pressure && source == WM97XX_ADCSEL_PRES) {
+ input_report_abs(wm->input_dev, ABS_X, atmel_wm97xx->x);
+ input_report_abs(wm->input_dev, ABS_Y, atmel_wm97xx->y);
+ input_report_abs(wm->input_dev, ABS_PRESSURE, value);
+ input_report_key(wm->input_dev, BTN_TOUCH, value);
+ input_sync(wm->input_dev);
+ }
+
+ retval = IRQ_HANDLED;
+ }
+
+ return retval;
+}
+
+static void atmel_wm97xx_acc_pen_up(struct wm97xx *wm)
+{
+ struct atmel_wm97xx *atmel_wm97xx = platform_get_drvdata(wm->touch_dev);
+ struct input_dev *input_dev = wm->input_dev;
+ int pen_down = gpio_get_value(atmel_wm97xx->gpio_pen);
+
+ if (pen_down != 0) {
+ mod_timer(&atmel_wm97xx->pen_timer,
+ jiffies + msecs_to_jiffies(1));
+ } else {
+ if (pressure)
+ input_report_abs(input_dev, ABS_PRESSURE, 0);
+ input_report_key(input_dev, BTN_TOUCH, 0);
+ input_sync(input_dev);
+ }
+}
+
+static void atmel_wm97xx_pen_timer(unsigned long data)
+{
+ atmel_wm97xx_acc_pen_up((struct wm97xx *)data);
+}
+
+static int atmel_wm97xx_acc_startup(struct wm97xx *wm)
+{
+ struct atmel_wm97xx *atmel_wm97xx = platform_get_drvdata(wm->touch_dev);
+ int idx = 0;
+
+ if (wm->ac97 == NULL)
+ return -ENODEV;
+
+ for (idx = 0; idx < ARRAY_SIZE(cinfo); idx++) {
+ if (wm->id != cinfo[idx].id)
+ continue;
+
+ sp_idx = idx;
+
+ if (cont_rate <= cinfo[idx].speed)
+ break;
+ }
+
+ wm->acc_rate = cinfo[sp_idx].code;
+ wm->acc_slot = ac97_touch_slot;
+ dev_info(&wm->touch_dev->dev, "atmel accelerated touchscreen driver, "
+ "%d samples/sec\n", cinfo[sp_idx].speed);
+
+ if (pen_int) {
+ unsigned long reg;
+
+ wm->pen_irq = atmel_wm97xx->gpio_irq;
+
+ switch (wm->id) {
+ case WM9712_ID2: /* Fall through. */
+ case WM9713_ID2:
+ /*
+ * Use GPIO 13 (PEN_DOWN) to assert GPIO line 3
+ * (PENDOWN).
+ */
+ wm97xx_config_gpio(wm, WM97XX_GPIO_13, WM97XX_GPIO_IN,
+ WM97XX_GPIO_POL_HIGH,
+ WM97XX_GPIO_STICKY,
+ WM97XX_GPIO_WAKE);
+ wm97xx_config_gpio(wm, WM97XX_GPIO_3, WM97XX_GPIO_OUT,
+ WM97XX_GPIO_POL_HIGH,
+ WM97XX_GPIO_NOTSTICKY,
+ WM97XX_GPIO_NOWAKE);
+ case WM9705_ID2: /* Fall through. */
+ /*
+ * Enable touch data slot in AC97 controller channel B.
+ */
+ reg = ac97c_readl(atmel_wm97xx, ICA);
+ reg &= ~AC97C_CH_MASK(wm->acc_slot);
+ reg |= AC97C_CH_ASSIGN(wm->acc_slot, B);
+ ac97c_writel(atmel_wm97xx, ICA, reg);
+
+ /*
+ * Enable channel and interrupt for RXRDY and OVERRUN.
+ */
+ ac97c_writel(atmel_wm97xx, CBMR, AC97C_CMR_CENA
+ | AC97C_CMR_CEM_BIG
+ | AC97C_CMR_SIZE_16
+ | AC97C_OVRUN
+ | AC97C_RXRDY);
+ /* Dummy read to empty RXRHR. */
+ ac97c_readl(atmel_wm97xx, CBRHR);
+ /*
+ * Enable interrupt for channel B in the AC97
+ * controller.
+ */
+ ac97c_writel(atmel_wm97xx, IER, AC97C_INT_CBEVT);
+ break;
+ default:
+ dev_err(&wm->touch_dev->dev, "pen down irq not "
+ "supported on this device\n");
+ pen_int = 0;
+ break;
+ }
+ }
+
+ return 0;
+}
+
+static void atmel_wm97xx_acc_shutdown(struct wm97xx *wm)
+{
+ if (pen_int) {
+ struct atmel_wm97xx *atmel_wm97xx =
+ platform_get_drvdata(wm->touch_dev);
+ unsigned long ica;
+
+ switch (wm->id & 0xffff) {
+ case WM9705_ID2: /* Fall through. */
+ case WM9712_ID2: /* Fall through. */
+ case WM9713_ID2:
+ /* Disable slot and turn off channel B interrupts. */
+ ica = ac97c_readl(atmel_wm97xx, ICA);
+ ica &= ~AC97C_CH_MASK(wm->acc_slot);
+ ac97c_writel(atmel_wm97xx, ICA, ica);
+ ac97c_writel(atmel_wm97xx, IDR, AC97C_INT_CBEVT);
+ ac97c_writel(atmel_wm97xx, CBMR, 0);
+ wm->pen_irq = 0;
+ break;
+ default:
+ dev_err(&wm->touch_dev->dev, "unknown codec\n");
+ break;
+ }
+ }
+}
+
+static void atmel_wm97xx_irq_enable(struct wm97xx *wm, int enable)
+{
+ /* Intentionally left empty. */
+}
+
+static struct wm97xx_mach_ops atmel_mach_ops = {
+ .acc_enabled = 1,
+ .acc_pen_up = atmel_wm97xx_acc_pen_up,
+ .acc_startup = atmel_wm97xx_acc_startup,
+ .acc_shutdown = atmel_wm97xx_acc_shutdown,
+ .irq_enable = atmel_wm97xx_irq_enable,
+ .irq_gpio = WM97XX_GPIO_3,
+};
+
+static int __init atmel_wm97xx_probe(struct platform_device *pdev)
+{
+ struct wm97xx *wm = platform_get_drvdata(pdev);
+ struct atmel_wm97xx *atmel_wm97xx;
+ int ret;
+
+ atmel_wm97xx = kzalloc(sizeof(struct atmel_wm97xx), GFP_KERNEL);
+ if (!atmel_wm97xx) {
+ dev_dbg(&pdev->dev, "out of memory\n");
+ return -ENOMEM;
+ }
+
+ atmel_wm97xx->wm = wm;
+ atmel_wm97xx->regs = (void *)ATMEL_WM97XX_AC97C_IOMEM;
+ atmel_wm97xx->ac97c_irq = ATMEL_WM97XX_AC97C_IRQ;
+ atmel_wm97xx->gpio_pen = atmel_gpio_line;
+ atmel_wm97xx->gpio_irq = gpio_to_irq(atmel_wm97xx->gpio_pen);
+
+ setup_timer(&atmel_wm97xx->pen_timer, atmel_wm97xx_pen_timer,
+ (unsigned long)wm);
+
+ ret = request_irq(atmel_wm97xx->ac97c_irq,
+ atmel_wm97xx_channel_b_interrupt,
+ IRQF_SHARED, "atmel-wm97xx-ch-b", atmel_wm97xx);
+ if (ret) {
+ dev_dbg(&pdev->dev, "could not request ac97c irq\n");
+ goto err;
+ }
+
+ platform_set_drvdata(pdev, atmel_wm97xx);
+
+ ret = wm97xx_register_mach_ops(wm, &atmel_mach_ops);
+ if (ret)
+ goto err_irq;
+
+ return ret;
+
+err_irq:
+ free_irq(atmel_wm97xx->ac97c_irq, atmel_wm97xx);
+err:
+ platform_set_drvdata(pdev, NULL);
+ kfree(atmel_wm97xx);
+ return ret;
+}
+
+static int __exit atmel_wm97xx_remove(struct platform_device *pdev)
+{
+ struct atmel_wm97xx *atmel_wm97xx = platform_get_drvdata(pdev);
+ struct wm97xx *wm = atmel_wm97xx->wm;
+
+ ac97c_writel(atmel_wm97xx, IDR, AC97C_INT_CBEVT);
+ free_irq(atmel_wm97xx->ac97c_irq, atmel_wm97xx);
+ del_timer_sync(&atmel_wm97xx->pen_timer);
+ wm97xx_unregister_mach_ops(wm);
+ platform_set_drvdata(pdev, NULL);
+ kfree(atmel_wm97xx);
+
+ return 0;
+}
+
+#ifdef CONFIG_PM
+static int atmel_wm97xx_suspend(struct platform_device *pdev, pm_message_t msg)
+{
+ struct atmel_wm97xx *atmel_wm97xx = platform_get_drvdata(pdev);
+
+ ac97c_writel(atmel_wm97xx, IDR, AC97C_INT_CBEVT);
+ disable_irq(atmel_wm97xx->gpio_irq);
+ del_timer_sync(&atmel_wm97xx->pen_timer);
+
+ return 0;
+}
+
+static int atmel_wm97xx_resume(struct platform_device *pdev)
+{
+ struct atmel_wm97xx *atmel_wm97xx = platform_get_drvdata(pdev);
+ struct wm97xx *wm = atmel_wm97xx->wm;
+
+ if (wm->input_dev->users) {
+ enable_irq(atmel_wm97xx->gpio_irq);
+ ac97c_writel(atmel_wm97xx, IER, AC97C_INT_CBEVT);
+ }
+
+ return 0;
+}
+#else
+#define atmel_wm97xx_suspend NULL
+#define atmel_wm97xx_resume NULL
+#endif
+
+static struct platform_driver atmel_wm97xx_driver = {
+ .remove = __exit_p(atmel_wm97xx_remove),
+ .driver = {
+ .name = "wm97xx-touch",
+ },
+ .suspend = atmel_wm97xx_suspend,
+ .resume = atmel_wm97xx_resume,
+};
+
+static int __init atmel_wm97xx_init(void)
+{
+ return platform_driver_probe(&atmel_wm97xx_driver, atmel_wm97xx_probe);
+}
+module_init(atmel_wm97xx_init);
+
+static void __exit atmel_wm97xx_exit(void)
+{
+ platform_driver_unregister(&atmel_wm97xx_driver);
+}
+module_exit(atmel_wm97xx_exit);
+
+MODULE_AUTHOR("Hans-Christian Egtvedt <egtvedt@samfundet.no>");
+MODULE_DESCRIPTION("wm97xx continuous touch driver for Atmel AT91 and AVR32");
+MODULE_LICENSE("GPL");
diff --git a/drivers/input/touchscreen/atmel_mxt_ts.c b/drivers/input/touchscreen/atmel_mxt_ts.c
new file mode 100644
index 0000000..a596c27
--- /dev/null
+++ b/drivers/input/touchscreen/atmel_mxt_ts.c
@@ -0,0 +1,1286 @@
+/*
+ * Atmel maXTouch Touchscreen driver
+ *
+ * Copyright (C) 2010 Samsung Electronics Co.Ltd
+ * Author: Joonyoung Shim <jy0922.shim@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/firmware.h>
+#include <linux/i2c.h>
+#include <linux/i2c/atmel_mxt_ts.h>
+#include <linux/input/mt.h>
+#include <linux/interrupt.h>
+#include <linux/slab.h>
+
+/* Version */
+#define MXT_VER_20 20
+#define MXT_VER_21 21
+#define MXT_VER_22 22
+
+/* Slave addresses */
+#define MXT_APP_LOW 0x4a
+#define MXT_APP_HIGH 0x4b
+#define MXT_BOOT_LOW 0x24
+#define MXT_BOOT_HIGH 0x25
+
+/* Firmware */
+#define MXT_FW_NAME "maxtouch.fw"
+
+/* Registers */
+#define MXT_FAMILY_ID 0x00
+#define MXT_VARIANT_ID 0x01
+#define MXT_VERSION 0x02
+#define MXT_BUILD 0x03
+#define MXT_MATRIX_X_SIZE 0x04
+#define MXT_MATRIX_Y_SIZE 0x05
+#define MXT_OBJECT_NUM 0x06
+#define MXT_OBJECT_START 0x07
+
+#define MXT_OBJECT_SIZE 6
+
+/* Object types */
+#define MXT_DEBUG_DIAGNOSTIC_T37 37
+#define MXT_GEN_MESSAGE_T5 5
+#define MXT_GEN_COMMAND_T6 6
+#define MXT_GEN_POWER_T7 7
+#define MXT_GEN_ACQUIRE_T8 8
+#define MXT_GEN_DATASOURCE_T53 53
+#define MXT_TOUCH_MULTI_T9 9
+#define MXT_TOUCH_KEYARRAY_T15 15
+#define MXT_TOUCH_PROXIMITY_T23 23
+#define MXT_TOUCH_PROXKEY_T52 52
+#define MXT_PROCI_GRIPFACE_T20 20
+#define MXT_PROCG_NOISE_T22 22
+#define MXT_PROCI_ONETOUCH_T24 24
+#define MXT_PROCI_TWOTOUCH_T27 27
+#define MXT_PROCI_GRIP_T40 40
+#define MXT_PROCI_PALM_T41 41
+#define MXT_PROCI_TOUCHSUPPRESSION_T42 42
+#define MXT_PROCI_STYLUS_T47 47
+#define MXT_PROCG_NOISESUPPRESSION_T48 48
+#define MXT_SPT_COMMSCONFIG_T18 18
+#define MXT_SPT_GPIOPWM_T19 19
+#define MXT_SPT_SELFTEST_T25 25
+#define MXT_SPT_CTECONFIG_T28 28
+#define MXT_SPT_USERDATA_T38 38
+#define MXT_SPT_DIGITIZER_T43 43
+#define MXT_SPT_MESSAGECOUNT_T44 44
+#define MXT_SPT_CTECONFIG_T46 46
+
+/* MXT_GEN_COMMAND_T6 field */
+#define MXT_COMMAND_RESET 0
+#define MXT_COMMAND_BACKUPNV 1
+#define MXT_COMMAND_CALIBRATE 2
+#define MXT_COMMAND_REPORTALL 3
+#define MXT_COMMAND_DIAGNOSTIC 5
+
+/* MXT_GEN_POWER_T7 field */
+#define MXT_POWER_IDLEACQINT 0
+#define MXT_POWER_ACTVACQINT 1
+#define MXT_POWER_ACTV2IDLETO 2
+
+/* MXT_GEN_ACQUIRE_T8 field */
+#define MXT_ACQUIRE_CHRGTIME 0
+#define MXT_ACQUIRE_TCHDRIFT 2
+#define MXT_ACQUIRE_DRIFTST 3
+#define MXT_ACQUIRE_TCHAUTOCAL 4
+#define MXT_ACQUIRE_SYNC 5
+#define MXT_ACQUIRE_ATCHCALST 6
+#define MXT_ACQUIRE_ATCHCALSTHR 7
+
+/* MXT_TOUCH_MULTI_T9 field */
+#define MXT_TOUCH_CTRL 0
+#define MXT_TOUCH_XORIGIN 1
+#define MXT_TOUCH_YORIGIN 2
+#define MXT_TOUCH_XSIZE 3
+#define MXT_TOUCH_YSIZE 4
+#define MXT_TOUCH_BLEN 6
+#define MXT_TOUCH_TCHTHR 7
+#define MXT_TOUCH_TCHDI 8
+#define MXT_TOUCH_ORIENT 9
+#define MXT_TOUCH_MOVHYSTI 11
+#define MXT_TOUCH_MOVHYSTN 12
+#define MXT_TOUCH_NUMTOUCH 14
+#define MXT_TOUCH_MRGHYST 15
+#define MXT_TOUCH_MRGTHR 16
+#define MXT_TOUCH_AMPHYST 17
+#define MXT_TOUCH_XRANGE_LSB 18
+#define MXT_TOUCH_XRANGE_MSB 19
+#define MXT_TOUCH_YRANGE_LSB 20
+#define MXT_TOUCH_YRANGE_MSB 21
+#define MXT_TOUCH_XLOCLIP 22
+#define MXT_TOUCH_XHICLIP 23
+#define MXT_TOUCH_YLOCLIP 24
+#define MXT_TOUCH_YHICLIP 25
+#define MXT_TOUCH_XEDGECTRL 26
+#define MXT_TOUCH_XEDGEDIST 27
+#define MXT_TOUCH_YEDGECTRL 28
+#define MXT_TOUCH_YEDGEDIST 29
+#define MXT_TOUCH_JUMPLIMIT 30
+
+/* MXT_PROCI_GRIPFACE_T20 field */
+#define MXT_GRIPFACE_CTRL 0
+#define MXT_GRIPFACE_XLOGRIP 1
+#define MXT_GRIPFACE_XHIGRIP 2
+#define MXT_GRIPFACE_YLOGRIP 3
+#define MXT_GRIPFACE_YHIGRIP 4
+#define MXT_GRIPFACE_MAXTCHS 5
+#define MXT_GRIPFACE_SZTHR1 7
+#define MXT_GRIPFACE_SZTHR2 8
+#define MXT_GRIPFACE_SHPTHR1 9
+#define MXT_GRIPFACE_SHPTHR2 10
+#define MXT_GRIPFACE_SUPEXTTO 11
+
+/* MXT_PROCI_NOISE field */
+#define MXT_NOISE_CTRL 0
+#define MXT_NOISE_OUTFLEN 1
+#define MXT_NOISE_GCAFUL_LSB 3
+#define MXT_NOISE_GCAFUL_MSB 4
+#define MXT_NOISE_GCAFLL_LSB 5
+#define MXT_NOISE_GCAFLL_MSB 6
+#define MXT_NOISE_ACTVGCAFVALID 7
+#define MXT_NOISE_NOISETHR 8
+#define MXT_NOISE_FREQHOPSCALE 10
+#define MXT_NOISE_FREQ0 11
+#define MXT_NOISE_FREQ1 12
+#define MXT_NOISE_FREQ2 13
+#define MXT_NOISE_FREQ3 14
+#define MXT_NOISE_FREQ4 15
+#define MXT_NOISE_IDLEGCAFVALID 16
+
+/* MXT_SPT_COMMSCONFIG_T18 */
+#define MXT_COMMS_CTRL 0
+#define MXT_COMMS_CMD 1
+
+/* MXT_SPT_CTECONFIG_T28 field */
+#define MXT_CTE_CTRL 0
+#define MXT_CTE_CMD 1
+#define MXT_CTE_MODE 2
+#define MXT_CTE_IDLEGCAFDEPTH 3
+#define MXT_CTE_ACTVGCAFDEPTH 4
+#define MXT_CTE_VOLTAGE 5
+
+#define MXT_VOLTAGE_DEFAULT 2700000
+#define MXT_VOLTAGE_STEP 10000
+
+/* Define for MXT_GEN_COMMAND_T6 */
+#define MXT_BOOT_VALUE 0xa5
+#define MXT_BACKUP_VALUE 0x55
+#define MXT_BACKUP_TIME 25 /* msec */
+#define MXT_RESET_TIME 65 /* msec */
+
+#define MXT_FWRESET_TIME 175 /* msec */
+
+/* Command to unlock bootloader */
+#define MXT_UNLOCK_CMD_MSB 0xaa
+#define MXT_UNLOCK_CMD_LSB 0xdc
+
+/* Bootloader mode status */
+#define MXT_WAITING_BOOTLOAD_CMD 0xc0 /* valid 7 6 bit only */
+#define MXT_WAITING_FRAME_DATA 0x80 /* valid 7 6 bit only */
+#define MXT_FRAME_CRC_CHECK 0x02
+#define MXT_FRAME_CRC_FAIL 0x03
+#define MXT_FRAME_CRC_PASS 0x04
+#define MXT_APP_CRC_FAIL 0x40 /* valid 7 8 bit only */
+#define MXT_BOOT_STATUS_MASK 0x3f
+
+/* Touch status */
+#define MXT_SUPPRESS (1 << 1)
+#define MXT_AMP (1 << 2)
+#define MXT_VECTOR (1 << 3)
+#define MXT_MOVE (1 << 4)
+#define MXT_RELEASE (1 << 5)
+#define MXT_PRESS (1 << 6)
+#define MXT_DETECT (1 << 7)
+
+/* Touch orient bits */
+#define MXT_XY_SWITCH (1 << 0)
+#define MXT_X_INVERT (1 << 1)
+#define MXT_Y_INVERT (1 << 2)
+
+/* Touchscreen absolute values */
+#define MXT_MAX_AREA 0xff
+
+#define MXT_MAX_FINGER 10
+
+struct mxt_info {
+ u8 family_id;
+ u8 variant_id;
+ u8 version;
+ u8 build;
+ u8 matrix_xsize;
+ u8 matrix_ysize;
+ u8 object_num;
+};
+
+struct mxt_object {
+ u8 type;
+ u16 start_address;
+ u8 size;
+ u8 instances;
+ u8 num_report_ids;
+
+ /* to map object and message */
+ u8 max_reportid;
+};
+
+struct mxt_message {
+ u8 reportid;
+ u8 message[7];
+ u8 checksum;
+};
+
+struct mxt_finger {
+ int status;
+ int x;
+ int y;
+ int area;
+ int pressure;
+};
+
+/* Each client has this additional data */
+struct mxt_data {
+ struct i2c_client *client;
+ struct input_dev *input_dev;
+ const struct mxt_platform_data *pdata;
+ struct mxt_object *object_table;
+ struct mxt_info info;
+ struct mxt_finger finger[MXT_MAX_FINGER];
+ unsigned int irq;
+ unsigned int max_x;
+ unsigned int max_y;
+};
+
+static bool mxt_object_readable(unsigned int type)
+{
+ switch (type) {
+ case MXT_GEN_MESSAGE_T5:
+ case MXT_GEN_COMMAND_T6:
+ case MXT_GEN_POWER_T7:
+ case MXT_GEN_ACQUIRE_T8:
+ case MXT_GEN_DATASOURCE_T53:
+ case MXT_TOUCH_MULTI_T9:
+ case MXT_TOUCH_KEYARRAY_T15:
+ case MXT_TOUCH_PROXIMITY_T23:
+ case MXT_TOUCH_PROXKEY_T52:
+ case MXT_PROCI_GRIPFACE_T20:
+ case MXT_PROCG_NOISE_T22:
+ case MXT_PROCI_ONETOUCH_T24:
+ case MXT_PROCI_TWOTOUCH_T27:
+ case MXT_PROCI_GRIP_T40:
+ case MXT_PROCI_PALM_T41:
+ case MXT_PROCI_TOUCHSUPPRESSION_T42:
+ case MXT_PROCI_STYLUS_T47:
+ case MXT_PROCG_NOISESUPPRESSION_T48:
+ case MXT_SPT_COMMSCONFIG_T18:
+ case MXT_SPT_GPIOPWM_T19:
+ case MXT_SPT_SELFTEST_T25:
+ case MXT_SPT_CTECONFIG_T28:
+ case MXT_SPT_USERDATA_T38:
+ case MXT_SPT_DIGITIZER_T43:
+ case MXT_SPT_CTECONFIG_T46:
+ return true;
+ default:
+ return false;
+ }
+}
+
+static bool mxt_object_writable(unsigned int type)
+{
+ switch (type) {
+ case MXT_GEN_COMMAND_T6:
+ case MXT_GEN_POWER_T7:
+ case MXT_GEN_ACQUIRE_T8:
+ case MXT_TOUCH_MULTI_T9:
+ case MXT_TOUCH_KEYARRAY_T15:
+ case MXT_TOUCH_PROXIMITY_T23:
+ case MXT_TOUCH_PROXKEY_T52:
+ case MXT_PROCI_GRIPFACE_T20:
+ case MXT_PROCG_NOISE_T22:
+ case MXT_PROCI_ONETOUCH_T24:
+ case MXT_PROCI_TWOTOUCH_T27:
+ case MXT_PROCI_GRIP_T40:
+ case MXT_PROCI_PALM_T41:
+ case MXT_PROCI_TOUCHSUPPRESSION_T42:
+ case MXT_PROCI_STYLUS_T47:
+ case MXT_PROCG_NOISESUPPRESSION_T48:
+ case MXT_SPT_COMMSCONFIG_T18:
+ case MXT_SPT_GPIOPWM_T19:
+ case MXT_SPT_SELFTEST_T25:
+ case MXT_SPT_CTECONFIG_T28:
+ case MXT_SPT_DIGITIZER_T43:
+ case MXT_SPT_CTECONFIG_T46:
+ return true;
+ default:
+ return false;
+ }
+}
+
+static void mxt_dump_message(struct device *dev,
+ struct mxt_message *message)
+{
+ dev_dbg(dev, "reportid:\t0x%x\n", message->reportid);
+ dev_dbg(dev, "message1:\t0x%x\n", message->message[0]);
+ dev_dbg(dev, "message2:\t0x%x\n", message->message[1]);
+ dev_dbg(dev, "message3:\t0x%x\n", message->message[2]);
+ dev_dbg(dev, "message4:\t0x%x\n", message->message[3]);
+ dev_dbg(dev, "message5:\t0x%x\n", message->message[4]);
+ dev_dbg(dev, "message6:\t0x%x\n", message->message[5]);
+ dev_dbg(dev, "message7:\t0x%x\n", message->message[6]);
+ dev_dbg(dev, "checksum:\t0x%x\n", message->checksum);
+}
+
+static int mxt_check_bootloader(struct i2c_client *client,
+ unsigned int state)
+{
+ u8 val;
+
+recheck:
+ if (i2c_master_recv(client, &val, 1) != 1) {
+ dev_err(&client->dev, "%s: i2c recv failed\n", __func__);
+ return -EIO;
+ }
+
+ switch (state) {
+ case MXT_WAITING_BOOTLOAD_CMD:
+ case MXT_WAITING_FRAME_DATA:
+ val &= ~MXT_BOOT_STATUS_MASK;
+ break;
+ case MXT_FRAME_CRC_PASS:
+ if (val == MXT_FRAME_CRC_CHECK)
+ goto recheck;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ if (val != state) {
+ dev_err(&client->dev, "Unvalid bootloader mode state\n");
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int mxt_unlock_bootloader(struct i2c_client *client)
+{
+ u8 buf[2];
+
+ buf[0] = MXT_UNLOCK_CMD_LSB;
+ buf[1] = MXT_UNLOCK_CMD_MSB;
+
+ if (i2c_master_send(client, buf, 2) != 2) {
+ dev_err(&client->dev, "%s: i2c send failed\n", __func__);
+ return -EIO;
+ }
+
+ return 0;
+}
+
+static int mxt_fw_write(struct i2c_client *client,
+ const u8 *data, unsigned int frame_size)
+{
+ if (i2c_master_send(client, data, frame_size) != frame_size) {
+ dev_err(&client->dev, "%s: i2c send failed\n", __func__);
+ return -EIO;
+ }
+
+ return 0;
+}
+
+static int __mxt_read_reg(struct i2c_client *client,
+ u16 reg, u16 len, void *val)
+{
+ struct i2c_msg xfer[2];
+ u8 buf[2];
+
+ buf[0] = reg & 0xff;
+ buf[1] = (reg >> 8) & 0xff;
+
+ /* Write register */
+ xfer[0].addr = client->addr;
+ xfer[0].flags = 0;
+ xfer[0].len = 2;
+ xfer[0].buf = buf;
+
+ /* Read data */
+ xfer[1].addr = client->addr;
+ xfer[1].flags = I2C_M_RD;
+ xfer[1].len = len;
+ xfer[1].buf = val;
+
+ if (i2c_transfer(client->adapter, xfer, 2) != 2) {
+ dev_err(&client->dev, "%s: i2c transfer failed\n", __func__);
+ return -EIO;
+ }
+
+ return 0;
+}
+
+static int mxt_read_reg(struct i2c_client *client, u16 reg, u8 *val)
+{
+ return __mxt_read_reg(client, reg, 1, val);
+}
+
+static int mxt_write_reg(struct i2c_client *client, u16 reg, u8 val)
+{
+ u8 buf[3];
+
+ buf[0] = reg & 0xff;
+ buf[1] = (reg >> 8) & 0xff;
+ buf[2] = val;
+
+ if (i2c_master_send(client, buf, 3) != 3) {
+ dev_err(&client->dev, "%s: i2c send failed\n", __func__);
+ return -EIO;
+ }
+
+ return 0;
+}
+
+static int mxt_read_object_table(struct i2c_client *client,
+ u16 reg, u8 *object_buf)
+{
+ return __mxt_read_reg(client, reg, MXT_OBJECT_SIZE,
+ object_buf);
+}
+
+static struct mxt_object *
+mxt_get_object(struct mxt_data *data, u8 type)
+{
+ struct mxt_object *object;
+ int i;
+
+ for (i = 0; i < data->info.object_num; i++) {
+ object = data->object_table + i;
+ if (object->type == type)
+ return object;
+ }
+
+ dev_err(&data->client->dev, "Invalid object type\n");
+ return NULL;
+}
+
+static int mxt_read_message(struct mxt_data *data,
+ struct mxt_message *message)
+{
+ struct mxt_object *object;
+ u16 reg;
+
+ object = mxt_get_object(data, MXT_GEN_MESSAGE_T5);
+ if (!object)
+ return -EINVAL;
+
+ reg = object->start_address;
+ return __mxt_read_reg(data->client, reg,
+ sizeof(struct mxt_message), message);
+}
+
+static int mxt_read_object(struct mxt_data *data,
+ u8 type, u8 offset, u8 *val)
+{
+ struct mxt_object *object;
+ u16 reg;
+
+ object = mxt_get_object(data, type);
+ if (!object)
+ return -EINVAL;
+
+ reg = object->start_address;
+ return __mxt_read_reg(data->client, reg + offset, 1, val);
+}
+
+static int mxt_write_object(struct mxt_data *data,
+ u8 type, u8 offset, u8 val)
+{
+ struct mxt_object *object;
+ u16 reg;
+
+ object = mxt_get_object(data, type);
+ if (!object)
+ return -EINVAL;
+
+ reg = object->start_address;
+ return mxt_write_reg(data->client, reg + offset, val);
+}
+
+static void mxt_input_report(struct mxt_data *data, int single_id)
+{
+ struct mxt_finger *finger = data->finger;
+ struct input_dev *input_dev = data->input_dev;
+ int status = finger[single_id].status;
+ int finger_num = 0;
+ int id;
+
+ for (id = 0; id < MXT_MAX_FINGER; id++) {
+ if (!finger[id].status)
+ continue;
+
+ input_mt_slot(input_dev, id);
+ input_mt_report_slot_state(input_dev, MT_TOOL_FINGER,
+ finger[id].status != MXT_RELEASE);
+
+ if (finger[id].status != MXT_RELEASE) {
+ finger_num++;
+ input_report_abs(input_dev, ABS_MT_TOUCH_MAJOR,
+ finger[id].area);
+ input_report_abs(input_dev, ABS_MT_POSITION_X,
+ finger[id].x);
+ input_report_abs(input_dev, ABS_MT_POSITION_Y,
+ finger[id].y);
+ input_report_abs(input_dev, ABS_MT_PRESSURE,
+ finger[id].pressure);
+ } else {
+ finger[id].status = 0;
+ }
+ }
+
+ input_report_key(input_dev, BTN_TOUCH, finger_num > 0);
+
+ if (status != MXT_RELEASE) {
+ input_report_abs(input_dev, ABS_X, finger[single_id].x);
+ input_report_abs(input_dev, ABS_Y, finger[single_id].y);
+ input_report_abs(input_dev,
+ ABS_PRESSURE, finger[single_id].pressure);
+ }
+
+ input_sync(input_dev);
+}
+
+static void mxt_input_touchevent(struct mxt_data *data,
+ struct mxt_message *message, int id)
+{
+ struct mxt_finger *finger = data->finger;
+ struct device *dev = &data->client->dev;
+ u8 status = message->message[0];
+ int x;
+ int y;
+ int area;
+ int pressure;
+
+ /* Check the touch is present on the screen */
+ if (!(status & MXT_DETECT)) {
+ if (status & MXT_RELEASE) {
+ dev_dbg(dev, "[%d] released\n", id);
+
+ finger[id].status = MXT_RELEASE;
+ mxt_input_report(data, id);
+ }
+ return;
+ }
+
+ /* Check only AMP detection */
+ if (!(status & (MXT_PRESS | MXT_MOVE)))
+ return;
+
+ x = (message->message[1] << 4) | ((message->message[3] >> 4) & 0xf);
+ y = (message->message[2] << 4) | ((message->message[3] & 0xf));
+ if (data->max_x < 1024)
+ x = x >> 2;
+ if (data->max_y < 1024)
+ y = y >> 2;
+
+ area = message->message[4];
+ pressure = message->message[5];
+
+ dev_dbg(dev, "[%d] %s x: %d, y: %d, area: %d\n", id,
+ status & MXT_MOVE ? "moved" : "pressed",
+ x, y, area);
+
+ finger[id].status = status & MXT_MOVE ?
+ MXT_MOVE : MXT_PRESS;
+ finger[id].x = x;
+ finger[id].y = y;
+ finger[id].area = area;
+ finger[id].pressure = pressure;
+
+ mxt_input_report(data, id);
+}
+
+static irqreturn_t mxt_interrupt(int irq, void *dev_id)
+{
+ struct mxt_data *data = dev_id;
+ struct mxt_message message;
+ struct mxt_object *object;
+ struct device *dev = &data->client->dev;
+ int id;
+ u8 reportid;
+ u8 max_reportid;
+ u8 min_reportid;
+
+ do {
+ if (mxt_read_message(data, &message)) {
+ dev_err(dev, "Failed to read message\n");
+ goto end;
+ }
+
+ reportid = message.reportid;
+
+ /* whether reportid is thing of MXT_TOUCH_MULTI_T9 */
+ object = mxt_get_object(data, MXT_TOUCH_MULTI_T9);
+ if (!object)
+ goto end;
+
+ max_reportid = object->max_reportid;
+ min_reportid = max_reportid - object->num_report_ids + 1;
+ id = reportid - min_reportid;
+
+ if (reportid >= min_reportid && reportid <= max_reportid)
+ mxt_input_touchevent(data, &message, id);
+ else
+ mxt_dump_message(dev, &message);
+ } while (reportid != 0xff);
+
+end:
+ return IRQ_HANDLED;
+}
+
+static int mxt_check_reg_init(struct mxt_data *data)
+{
+ const struct mxt_platform_data *pdata = data->pdata;
+ struct mxt_object *object;
+ struct device *dev = &data->client->dev;
+ int index = 0;
+ int i, j, config_offset;
+
+ if (!pdata->config) {
+ dev_dbg(dev, "No cfg data defined, skipping reg init\n");
+ return 0;
+ }
+
+ for (i = 0; i < data->info.object_num; i++) {
+ object = data->object_table + i;
+
+ if (!mxt_object_writable(object->type))
+ continue;
+
+ for (j = 0;
+ j < (object->size + 1) * (object->instances + 1);
+ j++) {
+ config_offset = index + j;
+ if (config_offset > pdata->config_length) {
+ dev_err(dev, "Not enough config data!\n");
+ return -EINVAL;
+ }
+ mxt_write_object(data, object->type, j,
+ pdata->config[config_offset]);
+ }
+ index += (object->size + 1) * (object->instances + 1);
+ }
+
+ return 0;
+}
+
+static int mxt_make_highchg(struct mxt_data *data)
+{
+ struct device *dev = &data->client->dev;
+ struct mxt_message message;
+ int count = 10;
+ int error;
+
+ /* Read dummy message to make high CHG pin */
+ do {
+ error = mxt_read_message(data, &message);
+ if (error)
+ return error;
+ } while (message.reportid != 0xff && --count);
+
+ if (!count) {
+ dev_err(dev, "CHG pin isn't cleared\n");
+ return -EBUSY;
+ }
+
+ return 0;
+}
+
+static void mxt_handle_pdata(struct mxt_data *data)
+{
+ const struct mxt_platform_data *pdata = data->pdata;
+ u8 voltage;
+
+ /* Set touchscreen lines */
+ mxt_write_object(data, MXT_TOUCH_MULTI_T9, MXT_TOUCH_XSIZE,
+ pdata->x_line);
+ mxt_write_object(data, MXT_TOUCH_MULTI_T9, MXT_TOUCH_YSIZE,
+ pdata->y_line);
+
+ /* Set touchscreen orient */
+ mxt_write_object(data, MXT_TOUCH_MULTI_T9, MXT_TOUCH_ORIENT,
+ pdata->orient);
+
+ /* Set touchscreen burst length */
+ mxt_write_object(data, MXT_TOUCH_MULTI_T9,
+ MXT_TOUCH_BLEN, pdata->blen);
+
+ /* Set touchscreen threshold */
+ mxt_write_object(data, MXT_TOUCH_MULTI_T9,
+ MXT_TOUCH_TCHTHR, pdata->threshold);
+
+ /* Set touchscreen resolution */
+ mxt_write_object(data, MXT_TOUCH_MULTI_T9,
+ MXT_TOUCH_XRANGE_LSB, (pdata->x_size - 1) & 0xff);
+ mxt_write_object(data, MXT_TOUCH_MULTI_T9,
+ MXT_TOUCH_XRANGE_MSB, (pdata->x_size - 1) >> 8);
+ mxt_write_object(data, MXT_TOUCH_MULTI_T9,
+ MXT_TOUCH_YRANGE_LSB, (pdata->y_size - 1) & 0xff);
+ mxt_write_object(data, MXT_TOUCH_MULTI_T9,
+ MXT_TOUCH_YRANGE_MSB, (pdata->y_size - 1) >> 8);
+
+ /* Set touchscreen voltage */
+ if (pdata->voltage) {
+ if (pdata->voltage < MXT_VOLTAGE_DEFAULT) {
+ voltage = (MXT_VOLTAGE_DEFAULT - pdata->voltage) /
+ MXT_VOLTAGE_STEP;
+ voltage = 0xff - voltage + 1;
+ } else
+ voltage = (pdata->voltage - MXT_VOLTAGE_DEFAULT) /
+ MXT_VOLTAGE_STEP;
+
+ mxt_write_object(data, MXT_SPT_CTECONFIG_T28,
+ MXT_CTE_VOLTAGE, voltage);
+ }
+}
+
+static int mxt_get_info(struct mxt_data *data)
+{
+ struct i2c_client *client = data->client;
+ struct mxt_info *info = &data->info;
+ int error;
+ u8 val;
+
+ error = mxt_read_reg(client, MXT_FAMILY_ID, &val);
+ if (error)
+ return error;
+ info->family_id = val;
+
+ error = mxt_read_reg(client, MXT_VARIANT_ID, &val);
+ if (error)
+ return error;
+ info->variant_id = val;
+
+ error = mxt_read_reg(client, MXT_VERSION, &val);
+ if (error)
+ return error;
+ info->version = val;
+
+ error = mxt_read_reg(client, MXT_BUILD, &val);
+ if (error)
+ return error;
+ info->build = val;
+
+ error = mxt_read_reg(client, MXT_OBJECT_NUM, &val);
+ if (error)
+ return error;
+ info->object_num = val;
+
+ return 0;
+}
+
+static int mxt_get_object_table(struct mxt_data *data)
+{
+ int error;
+ int i;
+ u16 reg;
+ u8 reportid = 0;
+ u8 buf[MXT_OBJECT_SIZE];
+
+ for (i = 0; i < data->info.object_num; i++) {
+ struct mxt_object *object = data->object_table + i;
+
+ reg = MXT_OBJECT_START + MXT_OBJECT_SIZE * i;
+ error = mxt_read_object_table(data->client, reg, buf);
+ if (error)
+ return error;
+
+ object->type = buf[0];
+ object->start_address = (buf[2] << 8) | buf[1];
+ object->size = buf[3];
+ object->instances = buf[4];
+ object->num_report_ids = buf[5];
+
+ if (object->num_report_ids) {
+ reportid += object->num_report_ids *
+ (object->instances + 1);
+ object->max_reportid = reportid;
+ }
+ }
+
+ return 0;
+}
+
+static int mxt_initialize(struct mxt_data *data)
+{
+ struct i2c_client *client = data->client;
+ struct mxt_info *info = &data->info;
+ int error;
+ u8 val;
+
+ error = mxt_get_info(data);
+ if (error)
+ return error;
+
+ data->object_table = kcalloc(info->object_num,
+ sizeof(struct mxt_object),
+ GFP_KERNEL);
+ if (!data->object_table) {
+ dev_err(&client->dev, "Failed to allocate memory\n");
+ return -ENOMEM;
+ }
+
+ /* Get object table information */
+ error = mxt_get_object_table(data);
+ if (error)
+ return error;
+
+ /* Check register init values */
+ error = mxt_check_reg_init(data);
+ if (error)
+ return error;
+
+ mxt_handle_pdata(data);
+
+ /* Backup to memory */
+ mxt_write_object(data, MXT_GEN_COMMAND_T6,
+ MXT_COMMAND_BACKUPNV,
+ MXT_BACKUP_VALUE);
+ msleep(MXT_BACKUP_TIME);
+
+ /* Soft reset */
+ mxt_write_object(data, MXT_GEN_COMMAND_T6,
+ MXT_COMMAND_RESET, 1);
+ msleep(MXT_RESET_TIME);
+
+ /* Update matrix size at info struct */
+ error = mxt_read_reg(client, MXT_MATRIX_X_SIZE, &val);
+ if (error)
+ return error;
+ info->matrix_xsize = val;
+
+ error = mxt_read_reg(client, MXT_MATRIX_Y_SIZE, &val);
+ if (error)
+ return error;
+ info->matrix_ysize = val;
+
+ dev_info(&client->dev,
+ "Family ID: %d Variant ID: %d Version: %d Build: %d\n",
+ info->family_id, info->variant_id, info->version,
+ info->build);
+
+ dev_info(&client->dev,
+ "Matrix X Size: %d Matrix Y Size: %d Object Num: %d\n",
+ info->matrix_xsize, info->matrix_ysize,
+ info->object_num);
+
+ return 0;
+}
+
+static void mxt_calc_resolution(struct mxt_data *data)
+{
+ unsigned int max_x = data->pdata->x_size - 1;
+ unsigned int max_y = data->pdata->y_size - 1;
+
+ if (data->pdata->orient & MXT_XY_SWITCH) {
+ data->max_x = max_y;
+ data->max_y = max_x;
+ } else {
+ data->max_x = max_x;
+ data->max_y = max_y;
+ }
+}
+
+static ssize_t mxt_object_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct mxt_data *data = dev_get_drvdata(dev);
+ struct mxt_object *object;
+ int count = 0;
+ int i, j;
+ int error;
+ u8 val;
+
+ for (i = 0; i < data->info.object_num; i++) {
+ object = data->object_table + i;
+
+ count += snprintf(buf + count, PAGE_SIZE - count,
+ "Object[%d] (Type %d)\n",
+ i + 1, object->type);
+ if (count >= PAGE_SIZE)
+ return PAGE_SIZE - 1;
+
+ if (!mxt_object_readable(object->type)) {
+ count += snprintf(buf + count, PAGE_SIZE - count,
+ "\n");
+ if (count >= PAGE_SIZE)
+ return PAGE_SIZE - 1;
+ continue;
+ }
+
+ for (j = 0; j < object->size + 1; j++) {
+ error = mxt_read_object(data,
+ object->type, j, &val);
+ if (error)
+ return error;
+
+ count += snprintf(buf + count, PAGE_SIZE - count,
+ "\t[%2d]: %02x (%d)\n", j, val, val);
+ if (count >= PAGE_SIZE)
+ return PAGE_SIZE - 1;
+ }
+
+ count += snprintf(buf + count, PAGE_SIZE - count, "\n");
+ if (count >= PAGE_SIZE)
+ return PAGE_SIZE - 1;
+ }
+
+ return count;
+}
+
+static int mxt_load_fw(struct device *dev, const char *fn)
+{
+ struct mxt_data *data = dev_get_drvdata(dev);
+ struct i2c_client *client = data->client;
+ const struct firmware *fw = NULL;
+ unsigned int frame_size;
+ unsigned int pos = 0;
+ int ret;
+
+ ret = request_firmware(&fw, fn, dev);
+ if (ret) {
+ dev_err(dev, "Unable to open firmware %s\n", fn);
+ return ret;
+ }
+
+ /* Change to the bootloader mode */
+ mxt_write_object(data, MXT_GEN_COMMAND_T6,
+ MXT_COMMAND_RESET, MXT_BOOT_VALUE);
+ msleep(MXT_RESET_TIME);
+
+ /* Change to slave address of bootloader */
+ if (client->addr == MXT_APP_LOW)
+ client->addr = MXT_BOOT_LOW;
+ else
+ client->addr = MXT_BOOT_HIGH;
+
+ ret = mxt_check_bootloader(client, MXT_WAITING_BOOTLOAD_CMD);
+ if (ret)
+ goto out;
+
+ /* Unlock bootloader */
+ mxt_unlock_bootloader(client);
+
+ while (pos < fw->size) {
+ ret = mxt_check_bootloader(client,
+ MXT_WAITING_FRAME_DATA);
+ if (ret)
+ goto out;
+
+ frame_size = ((*(fw->data + pos) << 8) | *(fw->data + pos + 1));
+
+ /* We should add 2 at frame size as the the firmware data is not
+ * included the CRC bytes.
+ */
+ frame_size += 2;
+
+ /* Write one frame to device */
+ mxt_fw_write(client, fw->data + pos, frame_size);
+
+ ret = mxt_check_bootloader(client,
+ MXT_FRAME_CRC_PASS);
+ if (ret)
+ goto out;
+
+ pos += frame_size;
+
+ dev_dbg(dev, "Updated %d bytes / %zd bytes\n", pos, fw->size);
+ }
+
+out:
+ release_firmware(fw);
+
+ /* Change to slave address of application */
+ if (client->addr == MXT_BOOT_LOW)
+ client->addr = MXT_APP_LOW;
+ else
+ client->addr = MXT_APP_HIGH;
+
+ return ret;
+}
+
+static ssize_t mxt_update_fw_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct mxt_data *data = dev_get_drvdata(dev);
+ int error;
+
+ disable_irq(data->irq);
+
+ error = mxt_load_fw(dev, MXT_FW_NAME);
+ if (error) {
+ dev_err(dev, "The firmware update failed(%d)\n", error);
+ count = error;
+ } else {
+ dev_dbg(dev, "The firmware update succeeded\n");
+
+ /* Wait for reset */
+ msleep(MXT_FWRESET_TIME);
+
+ kfree(data->object_table);
+ data->object_table = NULL;
+
+ mxt_initialize(data);
+ }
+
+ enable_irq(data->irq);
+
+ error = mxt_make_highchg(data);
+ if (error)
+ return error;
+
+ return count;
+}
+
+static DEVICE_ATTR(object, 0444, mxt_object_show, NULL);
+static DEVICE_ATTR(update_fw, 0664, NULL, mxt_update_fw_store);
+
+static struct attribute *mxt_attrs[] = {
+ &dev_attr_object.attr,
+ &dev_attr_update_fw.attr,
+ NULL
+};
+
+static const struct attribute_group mxt_attr_group = {
+ .attrs = mxt_attrs,
+};
+
+static void mxt_start(struct mxt_data *data)
+{
+ /* Touch enable */
+ mxt_write_object(data,
+ MXT_TOUCH_MULTI_T9, MXT_TOUCH_CTRL, 0x83);
+}
+
+static void mxt_stop(struct mxt_data *data)
+{
+ /* Touch disable */
+ mxt_write_object(data,
+ MXT_TOUCH_MULTI_T9, MXT_TOUCH_CTRL, 0);
+}
+
+static int mxt_input_open(struct input_dev *dev)
+{
+ struct mxt_data *data = input_get_drvdata(dev);
+
+ mxt_start(data);
+
+ return 0;
+}
+
+static void mxt_input_close(struct input_dev *dev)
+{
+ struct mxt_data *data = input_get_drvdata(dev);
+
+ mxt_stop(data);
+}
+
+static int __devinit mxt_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ const struct mxt_platform_data *pdata = client->dev.platform_data;
+ struct mxt_data *data;
+ struct input_dev *input_dev;
+ int error;
+
+ if (!pdata)
+ return -EINVAL;
+
+ data = kzalloc(sizeof(struct mxt_data), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!data || !input_dev) {
+ dev_err(&client->dev, "Failed to allocate memory\n");
+ error = -ENOMEM;
+ goto err_free_mem;
+ }
+
+ input_dev->name = "Atmel maXTouch Touchscreen";
+ input_dev->id.bustype = BUS_I2C;
+ input_dev->dev.parent = &client->dev;
+ input_dev->open = mxt_input_open;
+ input_dev->close = mxt_input_close;
+
+ data->client = client;
+ data->input_dev = input_dev;
+ data->pdata = pdata;
+ data->irq = client->irq;
+
+ mxt_calc_resolution(data);
+
+ __set_bit(EV_ABS, input_dev->evbit);
+ __set_bit(EV_KEY, input_dev->evbit);
+ __set_bit(BTN_TOUCH, input_dev->keybit);
+
+ /* For single touch */
+ input_set_abs_params(input_dev, ABS_X,
+ 0, data->max_x, 0, 0);
+ input_set_abs_params(input_dev, ABS_Y,
+ 0, data->max_y, 0, 0);
+ input_set_abs_params(input_dev, ABS_PRESSURE,
+ 0, 255, 0, 0);
+
+ /* For multi touch */
+ input_mt_init_slots(input_dev, MXT_MAX_FINGER);
+ input_set_abs_params(input_dev, ABS_MT_TOUCH_MAJOR,
+ 0, MXT_MAX_AREA, 0, 0);
+ input_set_abs_params(input_dev, ABS_MT_POSITION_X,
+ 0, data->max_x, 0, 0);
+ input_set_abs_params(input_dev, ABS_MT_POSITION_Y,
+ 0, data->max_y, 0, 0);
+ input_set_abs_params(input_dev, ABS_MT_PRESSURE,
+ 0, 255, 0, 0);
+
+ input_set_drvdata(input_dev, data);
+ i2c_set_clientdata(client, data);
+
+ error = mxt_initialize(data);
+ if (error)
+ goto err_free_object;
+
+ error = request_threaded_irq(client->irq, NULL, mxt_interrupt,
+ pdata->irqflags, client->dev.driver->name, data);
+ if (error) {
+ dev_err(&client->dev, "Failed to register interrupt\n");
+ goto err_free_object;
+ }
+
+ error = mxt_make_highchg(data);
+ if (error)
+ goto err_free_irq;
+
+ error = input_register_device(input_dev);
+ if (error)
+ goto err_free_irq;
+
+ error = sysfs_create_group(&client->dev.kobj, &mxt_attr_group);
+ if (error)
+ goto err_unregister_device;
+
+ return 0;
+
+err_unregister_device:
+ input_unregister_device(input_dev);
+ input_dev = NULL;
+err_free_irq:
+ free_irq(client->irq, data);
+err_free_object:
+ kfree(data->object_table);
+err_free_mem:
+ input_free_device(input_dev);
+ kfree(data);
+ return error;
+}
+
+static int __devexit mxt_remove(struct i2c_client *client)
+{
+ struct mxt_data *data = i2c_get_clientdata(client);
+
+ sysfs_remove_group(&client->dev.kobj, &mxt_attr_group);
+ free_irq(data->irq, data);
+ input_unregister_device(data->input_dev);
+ kfree(data->object_table);
+ kfree(data);
+
+ return 0;
+}
+
+#ifdef CONFIG_PM
+static int mxt_suspend(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct mxt_data *data = i2c_get_clientdata(client);
+ struct input_dev *input_dev = data->input_dev;
+
+ mutex_lock(&input_dev->mutex);
+
+ if (input_dev->users)
+ mxt_stop(data);
+
+ mutex_unlock(&input_dev->mutex);
+
+ return 0;
+}
+
+static int mxt_resume(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct mxt_data *data = i2c_get_clientdata(client);
+ struct input_dev *input_dev = data->input_dev;
+
+ /* Soft reset */
+ mxt_write_object(data, MXT_GEN_COMMAND_T6,
+ MXT_COMMAND_RESET, 1);
+
+ msleep(MXT_RESET_TIME);
+
+ mutex_lock(&input_dev->mutex);
+
+ if (input_dev->users)
+ mxt_start(data);
+
+ mutex_unlock(&input_dev->mutex);
+
+ return 0;
+}
+
+static const struct dev_pm_ops mxt_pm_ops = {
+ .suspend = mxt_suspend,
+ .resume = mxt_resume,
+};
+#endif
+
+static const struct i2c_device_id mxt_id[] = {
+ { "qt602240_ts", 0 },
+ { "atmel_mxt_ts", 0 },
+ { "mXT224", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, mxt_id);
+
+static struct i2c_driver mxt_driver = {
+ .driver = {
+ .name = "atmel_mxt_ts",
+ .owner = THIS_MODULE,
+#ifdef CONFIG_PM
+ .pm = &mxt_pm_ops,
+#endif
+ },
+ .probe = mxt_probe,
+ .remove = __devexit_p(mxt_remove),
+ .id_table = mxt_id,
+};
+
+static int __init mxt_init(void)
+{
+ return i2c_add_driver(&mxt_driver);
+}
+
+static void __exit mxt_exit(void)
+{
+ i2c_del_driver(&mxt_driver);
+}
+
+module_init(mxt_init);
+module_exit(mxt_exit);
+
+/* Module information */
+MODULE_AUTHOR("Joonyoung Shim <jy0922.shim@samsung.com>");
+MODULE_DESCRIPTION("Atmel maXTouch Touchscreen driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/input/touchscreen/atmel_tsadcc.c b/drivers/input/touchscreen/atmel_tsadcc.c
new file mode 100644
index 0000000..122a878
--- /dev/null
+++ b/drivers/input/touchscreen/atmel_tsadcc.c
@@ -0,0 +1,372 @@
+/*
+ * Atmel Touch Screen Driver
+ *
+ * Copyright (c) 2008 ATMEL
+ * Copyright (c) 2008 Dan Liang
+ * Copyright (c) 2008 TimeSys Corporation
+ * Copyright (c) 2008 Justin Waters
+ *
+ * Based on touchscreen code from Atmel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <linux/init.h>
+#include <linux/err.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/input.h>
+#include <linux/slab.h>
+#include <linux/interrupt.h>
+#include <linux/clk.h>
+#include <linux/platform_device.h>
+#include <linux/io.h>
+#include <mach/board.h>
+#include <mach/cpu.h>
+
+/* Register definitions based on AT91SAM9RL64 preliminary draft datasheet */
+
+#define ATMEL_TSADCC_CR 0x00 /* Control register */
+#define ATMEL_TSADCC_SWRST (1 << 0) /* Software Reset*/
+#define ATMEL_TSADCC_START (1 << 1) /* Start conversion */
+
+#define ATMEL_TSADCC_MR 0x04 /* Mode register */
+#define ATMEL_TSADCC_TSAMOD (3 << 0) /* ADC mode */
+#define ATMEL_TSADCC_TSAMOD_ADC_ONLY_MODE (0x0) /* ADC Mode */
+#define ATMEL_TSADCC_TSAMOD_TS_ONLY_MODE (0x1) /* Touch Screen Only Mode */
+#define ATMEL_TSADCC_LOWRES (1 << 4) /* Resolution selection */
+#define ATMEL_TSADCC_SLEEP (1 << 5) /* Sleep mode */
+#define ATMEL_TSADCC_PENDET (1 << 6) /* Pen Detect selection */
+#define ATMEL_TSADCC_PRES (1 << 7) /* Pressure Measurement Selection */
+#define ATMEL_TSADCC_PRESCAL (0x3f << 8) /* Prescalar Rate Selection */
+#define ATMEL_TSADCC_EPRESCAL (0xff << 8) /* Prescalar Rate Selection (Extended) */
+#define ATMEL_TSADCC_STARTUP (0x7f << 16) /* Start Up time */
+#define ATMEL_TSADCC_SHTIM (0xf << 24) /* Sample & Hold time */
+#define ATMEL_TSADCC_PENDBC (0xf << 28) /* Pen Detect debouncing time */
+
+#define ATMEL_TSADCC_TRGR 0x08 /* Trigger register */
+#define ATMEL_TSADCC_TRGMOD (7 << 0) /* Trigger mode */
+#define ATMEL_TSADCC_TRGMOD_NONE (0 << 0)
+#define ATMEL_TSADCC_TRGMOD_EXT_RISING (1 << 0)
+#define ATMEL_TSADCC_TRGMOD_EXT_FALLING (2 << 0)
+#define ATMEL_TSADCC_TRGMOD_EXT_ANY (3 << 0)
+#define ATMEL_TSADCC_TRGMOD_PENDET (4 << 0)
+#define ATMEL_TSADCC_TRGMOD_PERIOD (5 << 0)
+#define ATMEL_TSADCC_TRGMOD_CONTINUOUS (6 << 0)
+#define ATMEL_TSADCC_TRGPER (0xffff << 16) /* Trigger period */
+
+#define ATMEL_TSADCC_TSR 0x0C /* Touch Screen register */
+#define ATMEL_TSADCC_TSFREQ (0xf << 0) /* TS Frequency in Interleaved mode */
+#define ATMEL_TSADCC_TSSHTIM (0xf << 24) /* Sample & Hold time */
+
+#define ATMEL_TSADCC_CHER 0x10 /* Channel Enable register */
+#define ATMEL_TSADCC_CHDR 0x14 /* Channel Disable register */
+#define ATMEL_TSADCC_CHSR 0x18 /* Channel Status register */
+#define ATMEL_TSADCC_CH(n) (1 << (n)) /* Channel number */
+
+#define ATMEL_TSADCC_SR 0x1C /* Status register */
+#define ATMEL_TSADCC_EOC(n) (1 << ((n)+0)) /* End of conversion for channel N */
+#define ATMEL_TSADCC_OVRE(n) (1 << ((n)+8)) /* Overrun error for channel N */
+#define ATMEL_TSADCC_DRDY (1 << 16) /* Data Ready */
+#define ATMEL_TSADCC_GOVRE (1 << 17) /* General Overrun Error */
+#define ATMEL_TSADCC_ENDRX (1 << 18) /* End of RX Buffer */
+#define ATMEL_TSADCC_RXBUFF (1 << 19) /* TX Buffer full */
+#define ATMEL_TSADCC_PENCNT (1 << 20) /* Pen contact */
+#define ATMEL_TSADCC_NOCNT (1 << 21) /* No contact */
+
+#define ATMEL_TSADCC_LCDR 0x20 /* Last Converted Data register */
+#define ATMEL_TSADCC_DATA (0x3ff << 0) /* Channel data */
+
+#define ATMEL_TSADCC_IER 0x24 /* Interrupt Enable register */
+#define ATMEL_TSADCC_IDR 0x28 /* Interrupt Disable register */
+#define ATMEL_TSADCC_IMR 0x2C /* Interrupt Mask register */
+#define ATMEL_TSADCC_CDR0 0x30 /* Channel Data 0 */
+#define ATMEL_TSADCC_CDR1 0x34 /* Channel Data 1 */
+#define ATMEL_TSADCC_CDR2 0x38 /* Channel Data 2 */
+#define ATMEL_TSADCC_CDR3 0x3C /* Channel Data 3 */
+#define ATMEL_TSADCC_CDR4 0x40 /* Channel Data 4 */
+#define ATMEL_TSADCC_CDR5 0x44 /* Channel Data 5 */
+
+#define ATMEL_TSADCC_XPOS 0x50
+#define ATMEL_TSADCC_Z1DAT 0x54
+#define ATMEL_TSADCC_Z2DAT 0x58
+
+#define PRESCALER_VAL(x) ((x) >> 8)
+
+#define ADC_DEFAULT_CLOCK 100000
+
+struct atmel_tsadcc {
+ struct input_dev *input;
+ char phys[32];
+ struct clk *clk;
+ int irq;
+ unsigned int prev_absx;
+ unsigned int prev_absy;
+ unsigned char bufferedmeasure;
+};
+
+static void __iomem *tsc_base;
+
+#define atmel_tsadcc_read(reg) __raw_readl(tsc_base + (reg))
+#define atmel_tsadcc_write(reg, val) __raw_writel((val), tsc_base + (reg))
+
+static irqreturn_t atmel_tsadcc_interrupt(int irq, void *dev)
+{
+ struct atmel_tsadcc *ts_dev = (struct atmel_tsadcc *)dev;
+ struct input_dev *input_dev = ts_dev->input;
+
+ unsigned int status;
+ unsigned int reg;
+
+ status = atmel_tsadcc_read(ATMEL_TSADCC_SR);
+ status &= atmel_tsadcc_read(ATMEL_TSADCC_IMR);
+
+ if (status & ATMEL_TSADCC_NOCNT) {
+ /* Contact lost */
+ reg = atmel_tsadcc_read(ATMEL_TSADCC_MR) | ATMEL_TSADCC_PENDBC;
+
+ atmel_tsadcc_write(ATMEL_TSADCC_MR, reg);
+ atmel_tsadcc_write(ATMEL_TSADCC_TRGR, ATMEL_TSADCC_TRGMOD_NONE);
+ atmel_tsadcc_write(ATMEL_TSADCC_IDR,
+ ATMEL_TSADCC_EOC(3) | ATMEL_TSADCC_NOCNT);
+ atmel_tsadcc_write(ATMEL_TSADCC_IER, ATMEL_TSADCC_PENCNT);
+
+ input_report_key(input_dev, BTN_TOUCH, 0);
+ ts_dev->bufferedmeasure = 0;
+ input_sync(input_dev);
+
+ } else if (status & ATMEL_TSADCC_PENCNT) {
+ /* Pen detected */
+ reg = atmel_tsadcc_read(ATMEL_TSADCC_MR);
+ reg &= ~ATMEL_TSADCC_PENDBC;
+
+ atmel_tsadcc_write(ATMEL_TSADCC_IDR, ATMEL_TSADCC_PENCNT);
+ atmel_tsadcc_write(ATMEL_TSADCC_MR, reg);
+ atmel_tsadcc_write(ATMEL_TSADCC_IER,
+ ATMEL_TSADCC_EOC(3) | ATMEL_TSADCC_NOCNT);
+ atmel_tsadcc_write(ATMEL_TSADCC_TRGR,
+ ATMEL_TSADCC_TRGMOD_PERIOD | (0x0FFF << 16));
+
+ } else if (status & ATMEL_TSADCC_EOC(3)) {
+ /* Conversion finished */
+
+ if (ts_dev->bufferedmeasure) {
+ /* Last measurement is always discarded, since it can
+ * be erroneous.
+ * Always report previous measurement */
+ input_report_abs(input_dev, ABS_X, ts_dev->prev_absx);
+ input_report_abs(input_dev, ABS_Y, ts_dev->prev_absy);
+ input_report_key(input_dev, BTN_TOUCH, 1);
+ input_sync(input_dev);
+ } else
+ ts_dev->bufferedmeasure = 1;
+
+ /* Now make new measurement */
+ ts_dev->prev_absx = atmel_tsadcc_read(ATMEL_TSADCC_CDR3) << 10;
+ ts_dev->prev_absx /= atmel_tsadcc_read(ATMEL_TSADCC_CDR2);
+
+ ts_dev->prev_absy = atmel_tsadcc_read(ATMEL_TSADCC_CDR1) << 10;
+ ts_dev->prev_absy /= atmel_tsadcc_read(ATMEL_TSADCC_CDR0);
+ }
+
+ return IRQ_HANDLED;
+}
+
+/*
+ * The functions for inserting/removing us as a module.
+ */
+
+static int __devinit atmel_tsadcc_probe(struct platform_device *pdev)
+{
+ struct atmel_tsadcc *ts_dev;
+ struct input_dev *input_dev;
+ struct resource *res;
+ struct at91_tsadcc_data *pdata = pdev->dev.platform_data;
+ int err = 0;
+ unsigned int prsc;
+ unsigned int reg;
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!res) {
+ dev_err(&pdev->dev, "no mmio resource defined.\n");
+ return -ENXIO;
+ }
+
+ /* Allocate memory for device */
+ ts_dev = kzalloc(sizeof(struct atmel_tsadcc), GFP_KERNEL);
+ if (!ts_dev) {
+ dev_err(&pdev->dev, "failed to allocate memory.\n");
+ return -ENOMEM;
+ }
+ platform_set_drvdata(pdev, ts_dev);
+
+ input_dev = input_allocate_device();
+ if (!input_dev) {
+ dev_err(&pdev->dev, "failed to allocate input device.\n");
+ err = -EBUSY;
+ goto err_free_mem;
+ }
+
+ ts_dev->irq = platform_get_irq(pdev, 0);
+ if (ts_dev->irq < 0) {
+ dev_err(&pdev->dev, "no irq ID is designated.\n");
+ err = -ENODEV;
+ goto err_free_dev;
+ }
+
+ if (!request_mem_region(res->start, resource_size(res),
+ "atmel tsadcc regs")) {
+ dev_err(&pdev->dev, "resources is unavailable.\n");
+ err = -EBUSY;
+ goto err_free_dev;
+ }
+
+ tsc_base = ioremap(res->start, resource_size(res));
+ if (!tsc_base) {
+ dev_err(&pdev->dev, "failed to map registers.\n");
+ err = -ENOMEM;
+ goto err_release_mem;
+ }
+
+ err = request_irq(ts_dev->irq, atmel_tsadcc_interrupt, 0,
+ pdev->dev.driver->name, ts_dev);
+ if (err) {
+ dev_err(&pdev->dev, "failed to allocate irq.\n");
+ goto err_unmap_regs;
+ }
+
+ ts_dev->clk = clk_get(&pdev->dev, "tsc_clk");
+ if (IS_ERR(ts_dev->clk)) {
+ dev_err(&pdev->dev, "failed to get ts_clk\n");
+ err = PTR_ERR(ts_dev->clk);
+ goto err_free_irq;
+ }
+
+ ts_dev->input = input_dev;
+ ts_dev->bufferedmeasure = 0;
+
+ snprintf(ts_dev->phys, sizeof(ts_dev->phys),
+ "%s/input0", dev_name(&pdev->dev));
+
+ input_dev->name = "atmel touch screen controller";
+ input_dev->phys = ts_dev->phys;
+ input_dev->dev.parent = &pdev->dev;
+
+ __set_bit(EV_ABS, input_dev->evbit);
+ input_set_abs_params(input_dev, ABS_X, 0, 0x3FF, 0, 0);
+ input_set_abs_params(input_dev, ABS_Y, 0, 0x3FF, 0, 0);
+
+ input_set_capability(input_dev, EV_KEY, BTN_TOUCH);
+
+ /* clk_enable() always returns 0, no need to check it */
+ clk_enable(ts_dev->clk);
+
+ prsc = clk_get_rate(ts_dev->clk);
+ dev_info(&pdev->dev, "Master clock is set at: %d Hz\n", prsc);
+
+ if (!pdata)
+ goto err_fail;
+
+ if (!pdata->adc_clock)
+ pdata->adc_clock = ADC_DEFAULT_CLOCK;
+
+ prsc = (prsc / (2 * pdata->adc_clock)) - 1;
+
+ /* saturate if this value is too high */
+ if (cpu_is_at91sam9rl()) {
+ if (prsc > PRESCALER_VAL(ATMEL_TSADCC_PRESCAL))
+ prsc = PRESCALER_VAL(ATMEL_TSADCC_PRESCAL);
+ } else {
+ if (prsc > PRESCALER_VAL(ATMEL_TSADCC_EPRESCAL))
+ prsc = PRESCALER_VAL(ATMEL_TSADCC_EPRESCAL);
+ }
+
+ dev_info(&pdev->dev, "Prescaler is set at: %d\n", prsc);
+
+ reg = ATMEL_TSADCC_TSAMOD_TS_ONLY_MODE |
+ ((0x00 << 5) & ATMEL_TSADCC_SLEEP) | /* Normal Mode */
+ ((0x01 << 6) & ATMEL_TSADCC_PENDET) | /* Enable Pen Detect */
+ (prsc << 8) |
+ ((0x26 << 16) & ATMEL_TSADCC_STARTUP) |
+ ((pdata->pendet_debounce << 28) & ATMEL_TSADCC_PENDBC);
+
+ atmel_tsadcc_write(ATMEL_TSADCC_CR, ATMEL_TSADCC_SWRST);
+ atmel_tsadcc_write(ATMEL_TSADCC_MR, reg);
+ atmel_tsadcc_write(ATMEL_TSADCC_TRGR, ATMEL_TSADCC_TRGMOD_NONE);
+ atmel_tsadcc_write(ATMEL_TSADCC_TSR,
+ (pdata->ts_sample_hold_time << 24) & ATMEL_TSADCC_TSSHTIM);
+
+ atmel_tsadcc_read(ATMEL_TSADCC_SR);
+ atmel_tsadcc_write(ATMEL_TSADCC_IER, ATMEL_TSADCC_PENCNT);
+
+ /* All went ok, so register to the input system */
+ err = input_register_device(input_dev);
+ if (err)
+ goto err_fail;
+
+ return 0;
+
+err_fail:
+ clk_disable(ts_dev->clk);
+ clk_put(ts_dev->clk);
+err_free_irq:
+ free_irq(ts_dev->irq, ts_dev);
+err_unmap_regs:
+ iounmap(tsc_base);
+err_release_mem:
+ release_mem_region(res->start, resource_size(res));
+err_free_dev:
+ input_free_device(input_dev);
+err_free_mem:
+ kfree(ts_dev);
+ return err;
+}
+
+static int __devexit atmel_tsadcc_remove(struct platform_device *pdev)
+{
+ struct atmel_tsadcc *ts_dev = dev_get_drvdata(&pdev->dev);
+ struct resource *res;
+
+ free_irq(ts_dev->irq, ts_dev);
+
+ input_unregister_device(ts_dev->input);
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ iounmap(tsc_base);
+ release_mem_region(res->start, resource_size(res));
+
+ clk_disable(ts_dev->clk);
+ clk_put(ts_dev->clk);
+
+ kfree(ts_dev);
+
+ return 0;
+}
+
+static struct platform_driver atmel_tsadcc_driver = {
+ .probe = atmel_tsadcc_probe,
+ .remove = __devexit_p(atmel_tsadcc_remove),
+ .driver = {
+ .name = "atmel_tsadcc",
+ },
+};
+
+static int __init atmel_tsadcc_init(void)
+{
+ return platform_driver_register(&atmel_tsadcc_driver);
+}
+
+static void __exit atmel_tsadcc_exit(void)
+{
+ platform_driver_unregister(&atmel_tsadcc_driver);
+}
+
+module_init(atmel_tsadcc_init);
+module_exit(atmel_tsadcc_exit);
+
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("Atmel TouchScreen Driver");
+MODULE_AUTHOR("Dan Liang <dan.liang@atmel.com>");
+
diff --git a/drivers/input/touchscreen/bu21013_ts.c b/drivers/input/touchscreen/bu21013_ts.c
new file mode 100644
index 0000000..902c721
--- /dev/null
+++ b/drivers/input/touchscreen/bu21013_ts.c
@@ -0,0 +1,682 @@
+/*
+ * Copyright (C) ST-Ericsson SA 2010
+ * Author: Naveen Kumar G <naveen.gaddipati@stericsson.com> for ST-Ericsson
+ * License terms:GNU General Public License (GPL) version 2
+ */
+
+#include <linux/kernel.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <linux/i2c.h>
+#include <linux/workqueue.h>
+#include <linux/input.h>
+#include <linux/input/bu21013.h>
+#include <linux/slab.h>
+#include <linux/regulator/consumer.h>
+#include <linux/module.h>
+
+#define PEN_DOWN_INTR 0
+#define MAX_FINGERS 2
+#define RESET_DELAY 30
+#define PENUP_TIMEOUT (10)
+#define DELTA_MIN 16
+#define MASK_BITS 0x03
+#define SHIFT_8 8
+#define SHIFT_2 2
+#define LENGTH_OF_BUFFER 11
+#define I2C_RETRY_COUNT 5
+
+#define BU21013_SENSORS_BTN_0_7_REG 0x70
+#define BU21013_SENSORS_BTN_8_15_REG 0x71
+#define BU21013_SENSORS_BTN_16_23_REG 0x72
+#define BU21013_X1_POS_MSB_REG 0x73
+#define BU21013_X1_POS_LSB_REG 0x74
+#define BU21013_Y1_POS_MSB_REG 0x75
+#define BU21013_Y1_POS_LSB_REG 0x76
+#define BU21013_X2_POS_MSB_REG 0x77
+#define BU21013_X2_POS_LSB_REG 0x78
+#define BU21013_Y2_POS_MSB_REG 0x79
+#define BU21013_Y2_POS_LSB_REG 0x7A
+#define BU21013_INT_CLR_REG 0xE8
+#define BU21013_INT_MODE_REG 0xE9
+#define BU21013_GAIN_REG 0xEA
+#define BU21013_OFFSET_MODE_REG 0xEB
+#define BU21013_XY_EDGE_REG 0xEC
+#define BU21013_RESET_REG 0xED
+#define BU21013_CALIB_REG 0xEE
+#define BU21013_DONE_REG 0xEF
+#define BU21013_SENSOR_0_7_REG 0xF0
+#define BU21013_SENSOR_8_15_REG 0xF1
+#define BU21013_SENSOR_16_23_REG 0xF2
+#define BU21013_POS_MODE1_REG 0xF3
+#define BU21013_POS_MODE2_REG 0xF4
+#define BU21013_CLK_MODE_REG 0xF5
+#define BU21013_IDLE_REG 0xFA
+#define BU21013_FILTER_REG 0xFB
+#define BU21013_TH_ON_REG 0xFC
+#define BU21013_TH_OFF_REG 0xFD
+
+
+#define BU21013_RESET_ENABLE 0x01
+
+#define BU21013_SENSORS_EN_0_7 0x3F
+#define BU21013_SENSORS_EN_8_15 0xFC
+#define BU21013_SENSORS_EN_16_23 0x1F
+
+#define BU21013_POS_MODE1_0 0x02
+#define BU21013_POS_MODE1_1 0x04
+#define BU21013_POS_MODE1_2 0x08
+
+#define BU21013_POS_MODE2_ZERO 0x01
+#define BU21013_POS_MODE2_AVG1 0x02
+#define BU21013_POS_MODE2_AVG2 0x04
+#define BU21013_POS_MODE2_EN_XY 0x08
+#define BU21013_POS_MODE2_EN_RAW 0x10
+#define BU21013_POS_MODE2_MULTI 0x80
+
+#define BU21013_CLK_MODE_DIV 0x01
+#define BU21013_CLK_MODE_EXT 0x02
+#define BU21013_CLK_MODE_CALIB 0x80
+
+#define BU21013_IDLET_0 0x01
+#define BU21013_IDLET_1 0x02
+#define BU21013_IDLET_2 0x04
+#define BU21013_IDLET_3 0x08
+#define BU21013_IDLE_INTERMIT_EN 0x10
+
+#define BU21013_DELTA_0_6 0x7F
+#define BU21013_FILTER_EN 0x80
+
+#define BU21013_INT_MODE_LEVEL 0x00
+#define BU21013_INT_MODE_EDGE 0x01
+
+#define BU21013_GAIN_0 0x01
+#define BU21013_GAIN_1 0x02
+#define BU21013_GAIN_2 0x04
+
+#define BU21013_OFFSET_MODE_DEFAULT 0x00
+#define BU21013_OFFSET_MODE_MOVE 0x01
+#define BU21013_OFFSET_MODE_DISABLE 0x02
+
+#define BU21013_TH_ON_0 0x01
+#define BU21013_TH_ON_1 0x02
+#define BU21013_TH_ON_2 0x04
+#define BU21013_TH_ON_3 0x08
+#define BU21013_TH_ON_4 0x10
+#define BU21013_TH_ON_5 0x20
+#define BU21013_TH_ON_6 0x40
+#define BU21013_TH_ON_7 0x80
+#define BU21013_TH_ON_MAX 0xFF
+
+#define BU21013_TH_OFF_0 0x01
+#define BU21013_TH_OFF_1 0x02
+#define BU21013_TH_OFF_2 0x04
+#define BU21013_TH_OFF_3 0x08
+#define BU21013_TH_OFF_4 0x10
+#define BU21013_TH_OFF_5 0x20
+#define BU21013_TH_OFF_6 0x40
+#define BU21013_TH_OFF_7 0x80
+#define BU21013_TH_OFF_MAX 0xFF
+
+#define BU21013_X_EDGE_0 0x01
+#define BU21013_X_EDGE_1 0x02
+#define BU21013_X_EDGE_2 0x04
+#define BU21013_X_EDGE_3 0x08
+#define BU21013_Y_EDGE_0 0x10
+#define BU21013_Y_EDGE_1 0x20
+#define BU21013_Y_EDGE_2 0x40
+#define BU21013_Y_EDGE_3 0x80
+
+#define BU21013_DONE 0x01
+#define BU21013_NUMBER_OF_X_SENSORS (6)
+#define BU21013_NUMBER_OF_Y_SENSORS (11)
+
+#define DRIVER_TP "bu21013_tp"
+
+/**
+ * struct bu21013_ts_data - touch panel data structure
+ * @client: pointer to the i2c client
+ * @wait: variable to wait_queue_head_t structure
+ * @touch_stopped: touch stop flag
+ * @chip: pointer to the touch panel controller
+ * @in_dev: pointer to the input device structure
+ * @intr_pin: interrupt pin value
+ * @regulator: pointer to the Regulator used for touch screen
+ *
+ * Touch panel device data structure
+ */
+struct bu21013_ts_data {
+ struct i2c_client *client;
+ wait_queue_head_t wait;
+ bool touch_stopped;
+ const struct bu21013_platform_device *chip;
+ struct input_dev *in_dev;
+ unsigned int intr_pin;
+ struct regulator *regulator;
+};
+
+/**
+ * bu21013_read_block_data(): read the touch co-ordinates
+ * @data: bu21013_ts_data structure pointer
+ * @buf: byte pointer
+ *
+ * Read the touch co-ordinates using i2c read block into buffer
+ * and returns integer.
+ */
+static int bu21013_read_block_data(struct bu21013_ts_data *data, u8 *buf)
+{
+ int ret, i;
+
+ for (i = 0; i < I2C_RETRY_COUNT; i++) {
+ ret = i2c_smbus_read_i2c_block_data
+ (data->client, BU21013_SENSORS_BTN_0_7_REG,
+ LENGTH_OF_BUFFER, buf);
+ if (ret == LENGTH_OF_BUFFER)
+ return 0;
+ }
+ return -EINVAL;
+}
+
+/**
+ * bu21013_do_touch_report(): Get the touch co-ordinates
+ * @data: bu21013_ts_data structure pointer
+ *
+ * Get the touch co-ordinates from touch sensor registers and writes
+ * into device structure and returns integer.
+ */
+static int bu21013_do_touch_report(struct bu21013_ts_data *data)
+{
+ u8 buf[LENGTH_OF_BUFFER];
+ unsigned int pos_x[2], pos_y[2];
+ bool has_x_sensors, has_y_sensors;
+ int finger_down_count = 0;
+ int i;
+
+ if (data == NULL)
+ return -EINVAL;
+
+ if (bu21013_read_block_data(data, buf) < 0)
+ return -EINVAL;
+
+ has_x_sensors = hweight32(buf[0] & BU21013_SENSORS_EN_0_7);
+ has_y_sensors = hweight32(((buf[1] & BU21013_SENSORS_EN_8_15) |
+ ((buf[2] & BU21013_SENSORS_EN_16_23) << SHIFT_8)) >> SHIFT_2);
+ if (!has_x_sensors || !has_y_sensors)
+ return 0;
+
+ for (i = 0; i < MAX_FINGERS; i++) {
+ const u8 *p = &buf[4 * i + 3];
+ unsigned int x = p[0] << SHIFT_2 | (p[1] & MASK_BITS);
+ unsigned int y = p[2] << SHIFT_2 | (p[3] & MASK_BITS);
+ if (x == 0 || y == 0)
+ continue;
+ pos_x[finger_down_count] = x;
+ pos_y[finger_down_count] = y;
+ finger_down_count++;
+ }
+
+ if (finger_down_count) {
+ if (finger_down_count == 2 &&
+ (abs(pos_x[0] - pos_x[1]) < DELTA_MIN ||
+ abs(pos_y[0] - pos_y[1]) < DELTA_MIN)) {
+ return 0;
+ }
+
+ for (i = 0; i < finger_down_count; i++) {
+ if (data->chip->x_flip)
+ pos_x[i] = data->chip->touch_x_max - pos_x[i];
+ if (data->chip->y_flip)
+ pos_y[i] = data->chip->touch_y_max - pos_y[i];
+
+ input_report_abs(data->in_dev,
+ ABS_MT_POSITION_X, pos_x[i]);
+ input_report_abs(data->in_dev,
+ ABS_MT_POSITION_Y, pos_y[i]);
+ input_mt_sync(data->in_dev);
+ }
+ } else
+ input_mt_sync(data->in_dev);
+
+ input_sync(data->in_dev);
+
+ return 0;
+}
+/**
+ * bu21013_gpio_irq() - gpio thread function for touch interrupt
+ * @irq: irq value
+ * @device_data: void pointer
+ *
+ * This gpio thread function for touch interrupt
+ * and returns irqreturn_t.
+ */
+static irqreturn_t bu21013_gpio_irq(int irq, void *device_data)
+{
+ struct bu21013_ts_data *data = device_data;
+ struct i2c_client *i2c = data->client;
+ int retval;
+
+ do {
+ retval = bu21013_do_touch_report(data);
+ if (retval < 0) {
+ dev_err(&i2c->dev, "bu21013_do_touch_report failed\n");
+ return IRQ_NONE;
+ }
+
+ data->intr_pin = data->chip->irq_read_val();
+ if (data->intr_pin == PEN_DOWN_INTR)
+ wait_event_timeout(data->wait, data->touch_stopped,
+ msecs_to_jiffies(2));
+ } while (!data->intr_pin && !data->touch_stopped);
+
+ return IRQ_HANDLED;
+}
+
+/**
+ * bu21013_init_chip() - power on sequence for the bu21013 controller
+ * @data: device structure pointer
+ *
+ * This function is used to power on
+ * the bu21013 controller and returns integer.
+ */
+static int bu21013_init_chip(struct bu21013_ts_data *data)
+{
+ int retval;
+ struct i2c_client *i2c = data->client;
+
+ retval = i2c_smbus_write_byte_data(i2c, BU21013_RESET_REG,
+ BU21013_RESET_ENABLE);
+ if (retval < 0) {
+ dev_err(&i2c->dev, "BU21013_RESET reg write failed\n");
+ return retval;
+ }
+ msleep(RESET_DELAY);
+
+ retval = i2c_smbus_write_byte_data(i2c, BU21013_SENSOR_0_7_REG,
+ BU21013_SENSORS_EN_0_7);
+ if (retval < 0) {
+ dev_err(&i2c->dev, "BU21013_SENSOR_0_7 reg write failed\n");
+ return retval;
+ }
+
+ retval = i2c_smbus_write_byte_data(i2c, BU21013_SENSOR_8_15_REG,
+ BU21013_SENSORS_EN_8_15);
+ if (retval < 0) {
+ dev_err(&i2c->dev, "BU21013_SENSOR_8_15 reg write failed\n");
+ return retval;
+ }
+
+ retval = i2c_smbus_write_byte_data(i2c, BU21013_SENSOR_16_23_REG,
+ BU21013_SENSORS_EN_16_23);
+ if (retval < 0) {
+ dev_err(&i2c->dev, "BU21013_SENSOR_16_23 reg write failed\n");
+ return retval;
+ }
+
+ retval = i2c_smbus_write_byte_data(i2c, BU21013_POS_MODE1_REG,
+ (BU21013_POS_MODE1_0 | BU21013_POS_MODE1_1));
+ if (retval < 0) {
+ dev_err(&i2c->dev, "BU21013_POS_MODE1 reg write failed\n");
+ return retval;
+ }
+
+ retval = i2c_smbus_write_byte_data(i2c, BU21013_POS_MODE2_REG,
+ (BU21013_POS_MODE2_ZERO | BU21013_POS_MODE2_AVG1 |
+ BU21013_POS_MODE2_AVG2 | BU21013_POS_MODE2_EN_RAW |
+ BU21013_POS_MODE2_MULTI));
+ if (retval < 0) {
+ dev_err(&i2c->dev, "BU21013_POS_MODE2 reg write failed\n");
+ return retval;
+ }
+
+ if (data->chip->ext_clk)
+ retval = i2c_smbus_write_byte_data(i2c, BU21013_CLK_MODE_REG,
+ (BU21013_CLK_MODE_EXT | BU21013_CLK_MODE_CALIB));
+ else
+ retval = i2c_smbus_write_byte_data(i2c, BU21013_CLK_MODE_REG,
+ (BU21013_CLK_MODE_DIV | BU21013_CLK_MODE_CALIB));
+ if (retval < 0) {
+ dev_err(&i2c->dev, "BU21013_CLK_MODE reg write failed\n");
+ return retval;
+ }
+
+ retval = i2c_smbus_write_byte_data(i2c, BU21013_IDLE_REG,
+ (BU21013_IDLET_0 | BU21013_IDLE_INTERMIT_EN));
+ if (retval < 0) {
+ dev_err(&i2c->dev, "BU21013_IDLE reg write failed\n");
+ return retval;
+ }
+
+ retval = i2c_smbus_write_byte_data(i2c, BU21013_INT_MODE_REG,
+ BU21013_INT_MODE_LEVEL);
+ if (retval < 0) {
+ dev_err(&i2c->dev, "BU21013_INT_MODE reg write failed\n");
+ return retval;
+ }
+
+ retval = i2c_smbus_write_byte_data(i2c, BU21013_FILTER_REG,
+ (BU21013_DELTA_0_6 |
+ BU21013_FILTER_EN));
+ if (retval < 0) {
+ dev_err(&i2c->dev, "BU21013_FILTER reg write failed\n");
+ return retval;
+ }
+
+ retval = i2c_smbus_write_byte_data(i2c, BU21013_TH_ON_REG,
+ BU21013_TH_ON_5);
+ if (retval < 0) {
+ dev_err(&i2c->dev, "BU21013_TH_ON reg write failed\n");
+ return retval;
+ }
+
+ retval = i2c_smbus_write_byte_data(i2c, BU21013_TH_OFF_REG,
+ BU21013_TH_OFF_4 | BU21013_TH_OFF_3);
+ if (retval < 0) {
+ dev_err(&i2c->dev, "BU21013_TH_OFF reg write failed\n");
+ return retval;
+ }
+
+ retval = i2c_smbus_write_byte_data(i2c, BU21013_GAIN_REG,
+ (BU21013_GAIN_0 | BU21013_GAIN_1));
+ if (retval < 0) {
+ dev_err(&i2c->dev, "BU21013_GAIN reg write failed\n");
+ return retval;
+ }
+
+ retval = i2c_smbus_write_byte_data(i2c, BU21013_OFFSET_MODE_REG,
+ BU21013_OFFSET_MODE_DEFAULT);
+ if (retval < 0) {
+ dev_err(&i2c->dev, "BU21013_OFFSET_MODE reg write failed\n");
+ return retval;
+ }
+
+ retval = i2c_smbus_write_byte_data(i2c, BU21013_XY_EDGE_REG,
+ (BU21013_X_EDGE_0 | BU21013_X_EDGE_2 |
+ BU21013_Y_EDGE_1 | BU21013_Y_EDGE_3));
+ if (retval < 0) {
+ dev_err(&i2c->dev, "BU21013_XY_EDGE reg write failed\n");
+ return retval;
+ }
+
+ retval = i2c_smbus_write_byte_data(i2c, BU21013_DONE_REG,
+ BU21013_DONE);
+ if (retval < 0) {
+ dev_err(&i2c->dev, "BU21013_REG_DONE reg write failed\n");
+ return retval;
+ }
+
+ return 0;
+}
+
+/**
+ * bu21013_free_irq() - frees IRQ registered for touchscreen
+ * @bu21013_data: device structure pointer
+ *
+ * This function signals interrupt thread to stop processing and
+ * frees interrupt.
+ */
+static void bu21013_free_irq(struct bu21013_ts_data *bu21013_data)
+{
+ bu21013_data->touch_stopped = true;
+ wake_up(&bu21013_data->wait);
+ free_irq(bu21013_data->chip->irq, bu21013_data);
+}
+
+/**
+ * bu21013_probe() - initializes the i2c-client touchscreen driver
+ * @client: i2c client structure pointer
+ * @id: i2c device id pointer
+ *
+ * This function used to initializes the i2c-client touchscreen
+ * driver and returns integer.
+ */
+static int __devinit bu21013_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct bu21013_ts_data *bu21013_data;
+ struct input_dev *in_dev;
+ const struct bu21013_platform_device *pdata =
+ client->dev.platform_data;
+ int error;
+
+ if (!i2c_check_functionality(client->adapter,
+ I2C_FUNC_SMBUS_BYTE_DATA)) {
+ dev_err(&client->dev, "i2c smbus byte data not supported\n");
+ return -EIO;
+ }
+
+ if (!pdata) {
+ dev_err(&client->dev, "platform data not defined\n");
+ return -EINVAL;
+ }
+
+ bu21013_data = kzalloc(sizeof(struct bu21013_ts_data), GFP_KERNEL);
+ in_dev = input_allocate_device();
+ if (!bu21013_data || !in_dev) {
+ dev_err(&client->dev, "device memory alloc failed\n");
+ error = -ENOMEM;
+ goto err_free_mem;
+ }
+
+ bu21013_data->in_dev = in_dev;
+ bu21013_data->chip = pdata;
+ bu21013_data->client = client;
+
+ bu21013_data->regulator = regulator_get(&client->dev, "V-TOUCH");
+ if (IS_ERR(bu21013_data->regulator)) {
+ dev_err(&client->dev, "regulator_get failed\n");
+ error = PTR_ERR(bu21013_data->regulator);
+ goto err_free_mem;
+ }
+
+ error = regulator_enable(bu21013_data->regulator);
+ if (error < 0) {
+ dev_err(&client->dev, "regulator enable failed\n");
+ goto err_put_regulator;
+ }
+
+ bu21013_data->touch_stopped = false;
+ init_waitqueue_head(&bu21013_data->wait);
+
+ /* configure the gpio pins */
+ if (pdata->cs_en) {
+ error = pdata->cs_en(pdata->cs_pin);
+ if (error < 0) {
+ dev_err(&client->dev, "chip init failed\n");
+ goto err_disable_regulator;
+ }
+ }
+
+ /* configure the touch panel controller */
+ error = bu21013_init_chip(bu21013_data);
+ if (error) {
+ dev_err(&client->dev, "error in bu21013 config\n");
+ goto err_cs_disable;
+ }
+
+ /* register the device to input subsystem */
+ in_dev->name = DRIVER_TP;
+ in_dev->id.bustype = BUS_I2C;
+ in_dev->dev.parent = &client->dev;
+
+ __set_bit(EV_SYN, in_dev->evbit);
+ __set_bit(EV_KEY, in_dev->evbit);
+ __set_bit(EV_ABS, in_dev->evbit);
+
+ input_set_abs_params(in_dev, ABS_MT_POSITION_X, 0,
+ pdata->touch_x_max, 0, 0);
+ input_set_abs_params(in_dev, ABS_MT_POSITION_Y, 0,
+ pdata->touch_y_max, 0, 0);
+ input_set_drvdata(in_dev, bu21013_data);
+
+ error = request_threaded_irq(pdata->irq, NULL, bu21013_gpio_irq,
+ IRQF_TRIGGER_FALLING | IRQF_SHARED,
+ DRIVER_TP, bu21013_data);
+ if (error) {
+ dev_err(&client->dev, "request irq %d failed\n", pdata->irq);
+ goto err_cs_disable;
+ }
+
+ error = input_register_device(in_dev);
+ if (error) {
+ dev_err(&client->dev, "failed to register input device\n");
+ goto err_free_irq;
+ }
+
+ device_init_wakeup(&client->dev, pdata->wakeup);
+ i2c_set_clientdata(client, bu21013_data);
+
+ return 0;
+
+err_free_irq:
+ bu21013_free_irq(bu21013_data);
+err_cs_disable:
+ pdata->cs_dis(pdata->cs_pin);
+err_disable_regulator:
+ regulator_disable(bu21013_data->regulator);
+err_put_regulator:
+ regulator_put(bu21013_data->regulator);
+err_free_mem:
+ input_free_device(in_dev);
+ kfree(bu21013_data);
+
+ return error;
+}
+/**
+ * bu21013_remove() - removes the i2c-client touchscreen driver
+ * @client: i2c client structure pointer
+ *
+ * This function uses to remove the i2c-client
+ * touchscreen driver and returns integer.
+ */
+static int __devexit bu21013_remove(struct i2c_client *client)
+{
+ struct bu21013_ts_data *bu21013_data = i2c_get_clientdata(client);
+
+ bu21013_free_irq(bu21013_data);
+
+ bu21013_data->chip->cs_dis(bu21013_data->chip->cs_pin);
+
+ input_unregister_device(bu21013_data->in_dev);
+
+ regulator_disable(bu21013_data->regulator);
+ regulator_put(bu21013_data->regulator);
+
+ kfree(bu21013_data);
+
+ device_init_wakeup(&client->dev, false);
+
+ return 0;
+}
+
+#ifdef CONFIG_PM
+/**
+ * bu21013_suspend() - suspend the touch screen controller
+ * @dev: pointer to device structure
+ *
+ * This function is used to suspend the
+ * touch panel controller and returns integer
+ */
+static int bu21013_suspend(struct device *dev)
+{
+ struct bu21013_ts_data *bu21013_data = dev_get_drvdata(dev);
+ struct i2c_client *client = bu21013_data->client;
+
+ bu21013_data->touch_stopped = true;
+ if (device_may_wakeup(&client->dev))
+ enable_irq_wake(bu21013_data->chip->irq);
+ else
+ disable_irq(bu21013_data->chip->irq);
+
+ regulator_disable(bu21013_data->regulator);
+
+ return 0;
+}
+
+/**
+ * bu21013_resume() - resume the touch screen controller
+ * @dev: pointer to device structure
+ *
+ * This function is used to resume the touch panel
+ * controller and returns integer.
+ */
+static int bu21013_resume(struct device *dev)
+{
+ struct bu21013_ts_data *bu21013_data = dev_get_drvdata(dev);
+ struct i2c_client *client = bu21013_data->client;
+ int retval;
+
+ retval = regulator_enable(bu21013_data->regulator);
+ if (retval < 0) {
+ dev_err(&client->dev, "bu21013 regulator enable failed\n");
+ return retval;
+ }
+
+ retval = bu21013_init_chip(bu21013_data);
+ if (retval < 0) {
+ dev_err(&client->dev, "bu21013 controller config failed\n");
+ return retval;
+ }
+
+ bu21013_data->touch_stopped = false;
+
+ if (device_may_wakeup(&client->dev))
+ disable_irq_wake(bu21013_data->chip->irq);
+ else
+ enable_irq(bu21013_data->chip->irq);
+
+ return 0;
+}
+
+static const struct dev_pm_ops bu21013_dev_pm_ops = {
+ .suspend = bu21013_suspend,
+ .resume = bu21013_resume,
+};
+#endif
+
+static const struct i2c_device_id bu21013_id[] = {
+ { DRIVER_TP, 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, bu21013_id);
+
+static struct i2c_driver bu21013_driver = {
+ .driver = {
+ .name = DRIVER_TP,
+ .owner = THIS_MODULE,
+#ifdef CONFIG_PM
+ .pm = &bu21013_dev_pm_ops,
+#endif
+ },
+ .probe = bu21013_probe,
+ .remove = __devexit_p(bu21013_remove),
+ .id_table = bu21013_id,
+};
+
+/**
+ * bu21013_init() - initializes the bu21013 touchscreen driver
+ *
+ * This function used to initializes the bu21013
+ * touchscreen driver and returns integer.
+ */
+static int __init bu21013_init(void)
+{
+ return i2c_add_driver(&bu21013_driver);
+}
+
+/**
+ * bu21013_exit() - de-initializes the bu21013 touchscreen driver
+ *
+ * This function uses to de-initializes the bu21013
+ * touchscreen driver and returns none.
+ */
+static void __exit bu21013_exit(void)
+{
+ i2c_del_driver(&bu21013_driver);
+}
+
+module_init(bu21013_init);
+module_exit(bu21013_exit);
+
+MODULE_LICENSE("GPL v2");
+MODULE_AUTHOR("Naveen Kumar G <naveen.gaddipati@stericsson.com>");
+MODULE_DESCRIPTION("bu21013 touch screen controller driver");
diff --git a/drivers/input/touchscreen/cy8ctmg110_ts.c b/drivers/input/touchscreen/cy8ctmg110_ts.c
new file mode 100644
index 0000000..d8815c5
--- /dev/null
+++ b/drivers/input/touchscreen/cy8ctmg110_ts.c
@@ -0,0 +1,368 @@
+/*
+ * Driver for cypress touch screen controller
+ *
+ * Copyright (c) 2009 Aava Mobile
+ *
+ * Some cleanups by Alan Cox <alan@linux.intel.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/input.h>
+#include <linux/slab.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/i2c.h>
+#include <linux/gpio.h>
+#include <linux/input/cy8ctmg110_pdata.h>
+
+#define CY8CTMG110_DRIVER_NAME "cy8ctmg110"
+
+/* Touch coordinates */
+#define CY8CTMG110_X_MIN 0
+#define CY8CTMG110_Y_MIN 0
+#define CY8CTMG110_X_MAX 759
+#define CY8CTMG110_Y_MAX 465
+
+
+/* cy8ctmg110 register definitions */
+#define CY8CTMG110_TOUCH_WAKEUP_TIME 0
+#define CY8CTMG110_TOUCH_SLEEP_TIME 2
+#define CY8CTMG110_TOUCH_X1 3
+#define CY8CTMG110_TOUCH_Y1 5
+#define CY8CTMG110_TOUCH_X2 7
+#define CY8CTMG110_TOUCH_Y2 9
+#define CY8CTMG110_FINGERS 11
+#define CY8CTMG110_GESTURE 12
+#define CY8CTMG110_REG_MAX 13
+
+
+/*
+ * The touch driver structure.
+ */
+struct cy8ctmg110 {
+ struct input_dev *input;
+ char phys[32];
+ struct i2c_client *client;
+ int reset_pin;
+ int irq_pin;
+};
+
+/*
+ * cy8ctmg110_power is the routine that is called when touch hardware
+ * will powered off or on.
+ */
+static void cy8ctmg110_power(struct cy8ctmg110 *ts, bool poweron)
+{
+ if (ts->reset_pin)
+ gpio_direction_output(ts->reset_pin, 1 - poweron);
+}
+
+static int cy8ctmg110_write_regs(struct cy8ctmg110 *tsc, unsigned char reg,
+ unsigned char len, unsigned char *value)
+{
+ struct i2c_client *client = tsc->client;
+ int ret;
+ unsigned char i2c_data[6];
+
+ BUG_ON(len > 5);
+
+ i2c_data[0] = reg;
+ memcpy(i2c_data + 1, value, len);
+
+ ret = i2c_master_send(client, i2c_data, len + 1);
+ if (ret != len + 1) {
+ dev_err(&client->dev, "i2c write data cmd failed\n");
+ return ret < 0 ? ret : -EIO;
+ }
+
+ return 0;
+}
+
+static int cy8ctmg110_read_regs(struct cy8ctmg110 *tsc,
+ unsigned char *data, unsigned char len, unsigned char cmd)
+{
+ struct i2c_client *client = tsc->client;
+ int ret;
+ struct i2c_msg msg[2] = {
+ /* first write slave position to i2c devices */
+ { client->addr, 0, 1, &cmd },
+ /* Second read data from position */
+ { client->addr, I2C_M_RD, len, data }
+ };
+
+ ret = i2c_transfer(client->adapter, msg, 2);
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+static int cy8ctmg110_touch_pos(struct cy8ctmg110 *tsc)
+{
+ struct input_dev *input = tsc->input;
+ unsigned char reg_p[CY8CTMG110_REG_MAX];
+ int x, y;
+
+ memset(reg_p, 0, CY8CTMG110_REG_MAX);
+
+ /* Reading coordinates */
+ if (cy8ctmg110_read_regs(tsc, reg_p, 9, CY8CTMG110_TOUCH_X1) != 0)
+ return -EIO;
+
+ y = reg_p[2] << 8 | reg_p[3];
+ x = reg_p[0] << 8 | reg_p[1];
+
+ /* Number of touch */
+ if (reg_p[8] == 0) {
+ input_report_key(input, BTN_TOUCH, 0);
+ } else {
+ input_report_key(input, BTN_TOUCH, 1);
+ input_report_abs(input, ABS_X, x);
+ input_report_abs(input, ABS_Y, y);
+ }
+
+ input_sync(input);
+
+ return 0;
+}
+
+static int cy8ctmg110_set_sleepmode(struct cy8ctmg110 *ts, bool sleep)
+{
+ unsigned char reg_p[3];
+
+ if (sleep) {
+ reg_p[0] = 0x00;
+ reg_p[1] = 0xff;
+ reg_p[2] = 5;
+ } else {
+ reg_p[0] = 0x10;
+ reg_p[1] = 0xff;
+ reg_p[2] = 0;
+ }
+
+ return cy8ctmg110_write_regs(ts, CY8CTMG110_TOUCH_WAKEUP_TIME, 3, reg_p);
+}
+
+static irqreturn_t cy8ctmg110_irq_thread(int irq, void *dev_id)
+{
+ struct cy8ctmg110 *tsc = dev_id;
+
+ cy8ctmg110_touch_pos(tsc);
+
+ return IRQ_HANDLED;
+}
+
+static int __devinit cy8ctmg110_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ const struct cy8ctmg110_pdata *pdata = client->dev.platform_data;
+ struct cy8ctmg110 *ts;
+ struct input_dev *input_dev;
+ int err;
+
+ /* No pdata no way forward */
+ if (pdata == NULL) {
+ dev_err(&client->dev, "no pdata\n");
+ return -ENODEV;
+ }
+
+ if (!i2c_check_functionality(client->adapter,
+ I2C_FUNC_SMBUS_READ_WORD_DATA))
+ return -EIO;
+
+ ts = kzalloc(sizeof(struct cy8ctmg110), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!ts || !input_dev) {
+ err = -ENOMEM;
+ goto err_free_mem;
+ }
+
+ ts->client = client;
+ ts->input = input_dev;
+ ts->reset_pin = pdata->reset_pin;
+ ts->irq_pin = pdata->irq_pin;
+
+ snprintf(ts->phys, sizeof(ts->phys),
+ "%s/input0", dev_name(&client->dev));
+
+ input_dev->name = CY8CTMG110_DRIVER_NAME " Touchscreen";
+ input_dev->phys = ts->phys;
+ input_dev->id.bustype = BUS_I2C;
+ input_dev->dev.parent = &client->dev;
+
+ input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
+ input_dev->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH);
+
+ input_set_abs_params(input_dev, ABS_X,
+ CY8CTMG110_X_MIN, CY8CTMG110_X_MAX, 4, 0);
+ input_set_abs_params(input_dev, ABS_Y,
+ CY8CTMG110_Y_MIN, CY8CTMG110_Y_MAX, 4, 0);
+
+ if (ts->reset_pin) {
+ err = gpio_request(ts->reset_pin, NULL);
+ if (err) {
+ dev_err(&client->dev,
+ "Unable to request GPIO pin %d.\n",
+ ts->reset_pin);
+ goto err_free_mem;
+ }
+ }
+
+ cy8ctmg110_power(ts, true);
+ cy8ctmg110_set_sleepmode(ts, false);
+
+ err = gpio_request(ts->irq_pin, "touch_irq_key");
+ if (err < 0) {
+ dev_err(&client->dev,
+ "Failed to request GPIO %d, error %d\n",
+ ts->irq_pin, err);
+ goto err_shutoff_device;
+ }
+
+ err = gpio_direction_input(ts->irq_pin);
+ if (err < 0) {
+ dev_err(&client->dev,
+ "Failed to configure input direction for GPIO %d, error %d\n",
+ ts->irq_pin, err);
+ goto err_free_irq_gpio;
+ }
+
+ client->irq = gpio_to_irq(ts->irq_pin);
+ if (client->irq < 0) {
+ err = client->irq;
+ dev_err(&client->dev,
+ "Unable to get irq number for GPIO %d, error %d\n",
+ ts->irq_pin, err);
+ goto err_free_irq_gpio;
+ }
+
+ err = request_threaded_irq(client->irq, NULL, cy8ctmg110_irq_thread,
+ IRQF_TRIGGER_RISING, "touch_reset_key", ts);
+ if (err < 0) {
+ dev_err(&client->dev,
+ "irq %d busy? error %d\n", client->irq, err);
+ goto err_free_irq_gpio;
+ }
+
+ err = input_register_device(input_dev);
+ if (err)
+ goto err_free_irq;
+
+ i2c_set_clientdata(client, ts);
+ device_init_wakeup(&client->dev, 1);
+ return 0;
+
+err_free_irq:
+ free_irq(client->irq, ts);
+err_free_irq_gpio:
+ gpio_free(ts->irq_pin);
+err_shutoff_device:
+ cy8ctmg110_set_sleepmode(ts, true);
+ cy8ctmg110_power(ts, false);
+ if (ts->reset_pin)
+ gpio_free(ts->reset_pin);
+err_free_mem:
+ input_free_device(input_dev);
+ kfree(ts);
+ return err;
+}
+
+#ifdef CONFIG_PM
+static int cy8ctmg110_suspend(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct cy8ctmg110 *ts = i2c_get_clientdata(client);
+
+ if (device_may_wakeup(&client->dev))
+ enable_irq_wake(client->irq);
+ else {
+ cy8ctmg110_set_sleepmode(ts, true);
+ cy8ctmg110_power(ts, false);
+ }
+ return 0;
+}
+
+static int cy8ctmg110_resume(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct cy8ctmg110 *ts = i2c_get_clientdata(client);
+
+ if (device_may_wakeup(&client->dev))
+ disable_irq_wake(client->irq);
+ else {
+ cy8ctmg110_power(ts, true);
+ cy8ctmg110_set_sleepmode(ts, false);
+ }
+ return 0;
+}
+
+static SIMPLE_DEV_PM_OPS(cy8ctmg110_pm, cy8ctmg110_suspend, cy8ctmg110_resume);
+#endif
+
+static int __devexit cy8ctmg110_remove(struct i2c_client *client)
+{
+ struct cy8ctmg110 *ts = i2c_get_clientdata(client);
+
+ cy8ctmg110_set_sleepmode(ts, true);
+ cy8ctmg110_power(ts, false);
+
+ free_irq(client->irq, ts);
+ input_unregister_device(ts->input);
+ gpio_free(ts->irq_pin);
+ if (ts->reset_pin)
+ gpio_free(ts->reset_pin);
+ kfree(ts);
+
+ return 0;
+}
+
+static const struct i2c_device_id cy8ctmg110_idtable[] = {
+ { CY8CTMG110_DRIVER_NAME, 1 },
+ { }
+};
+
+MODULE_DEVICE_TABLE(i2c, cy8ctmg110_idtable);
+
+static struct i2c_driver cy8ctmg110_driver = {
+ .driver = {
+ .owner = THIS_MODULE,
+ .name = CY8CTMG110_DRIVER_NAME,
+#ifdef CONFIG_PM
+ .pm = &cy8ctmg110_pm,
+#endif
+ },
+ .id_table = cy8ctmg110_idtable,
+ .probe = cy8ctmg110_probe,
+ .remove = __devexit_p(cy8ctmg110_remove),
+};
+
+static int __init cy8ctmg110_init(void)
+{
+ return i2c_add_driver(&cy8ctmg110_driver);
+}
+
+static void __exit cy8ctmg110_exit(void)
+{
+ i2c_del_driver(&cy8ctmg110_driver);
+}
+
+module_init(cy8ctmg110_init);
+module_exit(cy8ctmg110_exit);
+
+MODULE_AUTHOR("Samuli Konttila <samuli.konttila@aavamobile.com>");
+MODULE_DESCRIPTION("cy8ctmg110 TouchScreen Driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/input/touchscreen/da9034-ts.c b/drivers/input/touchscreen/da9034-ts.c
new file mode 100644
index 0000000..2b72a59
--- /dev/null
+++ b/drivers/input/touchscreen/da9034-ts.c
@@ -0,0 +1,398 @@
+/*
+ * Touchscreen driver for Dialog Semiconductor DA9034
+ *
+ * Copyright (C) 2006-2008 Marvell International Ltd.
+ * Fengwei Yin <fengwei.yin@marvell.com>
+ * Bin Yang <bin.yang@marvell.com>
+ * Eric Miao <eric.miao@marvell.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/platform_device.h>
+#include <linux/input.h>
+#include <linux/workqueue.h>
+#include <linux/mfd/da903x.h>
+#include <linux/slab.h>
+
+#define DA9034_MANUAL_CTRL 0x50
+#define DA9034_LDO_ADC_EN (1 << 4)
+
+#define DA9034_AUTO_CTRL1 0x51
+
+#define DA9034_AUTO_CTRL2 0x52
+#define DA9034_AUTO_TSI_EN (1 << 3)
+#define DA9034_PEN_DETECT (1 << 4)
+
+#define DA9034_TSI_CTRL1 0x53
+#define DA9034_TSI_CTRL2 0x54
+#define DA9034_TSI_X_MSB 0x6c
+#define DA9034_TSI_Y_MSB 0x6d
+#define DA9034_TSI_XY_LSB 0x6e
+
+enum {
+ STATE_IDLE, /* wait for pendown */
+ STATE_BUSY, /* TSI busy sampling */
+ STATE_STOP, /* sample available */
+ STATE_WAIT, /* Wait to start next sample */
+};
+
+enum {
+ EVENT_PEN_DOWN,
+ EVENT_PEN_UP,
+ EVENT_TSI_READY,
+ EVENT_TIMEDOUT,
+};
+
+struct da9034_touch {
+ struct device *da9034_dev;
+ struct input_dev *input_dev;
+
+ struct delayed_work tsi_work;
+ struct notifier_block notifier;
+
+ int state;
+
+ int interval_ms;
+ int x_inverted;
+ int y_inverted;
+
+ int last_x;
+ int last_y;
+};
+
+static inline int is_pen_down(struct da9034_touch *touch)
+{
+ return da903x_query_status(touch->da9034_dev, DA9034_STATUS_PEN_DOWN);
+}
+
+static inline int detect_pen_down(struct da9034_touch *touch, int on)
+{
+ if (on)
+ return da903x_set_bits(touch->da9034_dev,
+ DA9034_AUTO_CTRL2, DA9034_PEN_DETECT);
+ else
+ return da903x_clr_bits(touch->da9034_dev,
+ DA9034_AUTO_CTRL2, DA9034_PEN_DETECT);
+}
+
+static int read_tsi(struct da9034_touch *touch)
+{
+ uint8_t _x, _y, _v;
+ int ret;
+
+ ret = da903x_read(touch->da9034_dev, DA9034_TSI_X_MSB, &_x);
+ if (ret)
+ return ret;
+
+ ret = da903x_read(touch->da9034_dev, DA9034_TSI_Y_MSB, &_y);
+ if (ret)
+ return ret;
+
+ ret = da903x_read(touch->da9034_dev, DA9034_TSI_XY_LSB, &_v);
+ if (ret)
+ return ret;
+
+ touch->last_x = ((_x << 2) & 0x3fc) | (_v & 0x3);
+ touch->last_y = ((_y << 2) & 0x3fc) | ((_v & 0xc) >> 2);
+
+ return 0;
+}
+
+static inline int start_tsi(struct da9034_touch *touch)
+{
+ return da903x_set_bits(touch->da9034_dev,
+ DA9034_AUTO_CTRL2, DA9034_AUTO_TSI_EN);
+}
+
+static inline int stop_tsi(struct da9034_touch *touch)
+{
+ return da903x_clr_bits(touch->da9034_dev,
+ DA9034_AUTO_CTRL2, DA9034_AUTO_TSI_EN);
+}
+
+static inline void report_pen_down(struct da9034_touch *touch)
+{
+ int x = touch->last_x;
+ int y = touch->last_y;
+
+ x &= 0xfff;
+ if (touch->x_inverted)
+ x = 1024 - x;
+ y &= 0xfff;
+ if (touch->y_inverted)
+ y = 1024 - y;
+
+ input_report_abs(touch->input_dev, ABS_X, x);
+ input_report_abs(touch->input_dev, ABS_Y, y);
+ input_report_key(touch->input_dev, BTN_TOUCH, 1);
+
+ input_sync(touch->input_dev);
+}
+
+static inline void report_pen_up(struct da9034_touch *touch)
+{
+ input_report_key(touch->input_dev, BTN_TOUCH, 0);
+ input_sync(touch->input_dev);
+}
+
+static void da9034_event_handler(struct da9034_touch *touch, int event)
+{
+ int err;
+
+ switch (touch->state) {
+ case STATE_IDLE:
+ if (event != EVENT_PEN_DOWN)
+ break;
+
+ /* Enable auto measurement of the TSI, this will
+ * automatically disable pen down detection
+ */
+ err = start_tsi(touch);
+ if (err)
+ goto err_reset;
+
+ touch->state = STATE_BUSY;
+ break;
+
+ case STATE_BUSY:
+ if (event != EVENT_TSI_READY)
+ break;
+
+ err = read_tsi(touch);
+ if (err)
+ goto err_reset;
+
+ /* Disable auto measurement of the TSI, so that
+ * pen down status will be available
+ */
+ err = stop_tsi(touch);
+ if (err)
+ goto err_reset;
+
+ touch->state = STATE_STOP;
+
+ /* FIXME: PEN_{UP/DOWN} events are expected to be
+ * available by stopping TSI, but this is found not
+ * always true, delay and simulate such an event
+ * here is more reliable
+ */
+ mdelay(1);
+ da9034_event_handler(touch,
+ is_pen_down(touch) ? EVENT_PEN_DOWN :
+ EVENT_PEN_UP);
+ break;
+
+ case STATE_STOP:
+ if (event == EVENT_PEN_DOWN) {
+ report_pen_down(touch);
+ schedule_delayed_work(&touch->tsi_work,
+ msecs_to_jiffies(touch->interval_ms));
+ touch->state = STATE_WAIT;
+ }
+
+ if (event == EVENT_PEN_UP) {
+ report_pen_up(touch);
+ touch->state = STATE_IDLE;
+ }
+ break;
+
+ case STATE_WAIT:
+ if (event != EVENT_TIMEDOUT)
+ break;
+
+ if (is_pen_down(touch)) {
+ start_tsi(touch);
+ touch->state = STATE_BUSY;
+ } else {
+ report_pen_up(touch);
+ touch->state = STATE_IDLE;
+ }
+ break;
+ }
+ return;
+
+err_reset:
+ touch->state = STATE_IDLE;
+ stop_tsi(touch);
+ detect_pen_down(touch, 1);
+}
+
+static void da9034_tsi_work(struct work_struct *work)
+{
+ struct da9034_touch *touch =
+ container_of(work, struct da9034_touch, tsi_work.work);
+
+ da9034_event_handler(touch, EVENT_TIMEDOUT);
+}
+
+static int da9034_touch_notifier(struct notifier_block *nb,
+ unsigned long event, void *data)
+{
+ struct da9034_touch *touch =
+ container_of(nb, struct da9034_touch, notifier);
+
+ if (event & DA9034_EVENT_TSI_READY)
+ da9034_event_handler(touch, EVENT_TSI_READY);
+
+ if ((event & DA9034_EVENT_PEN_DOWN) && touch->state == STATE_IDLE)
+ da9034_event_handler(touch, EVENT_PEN_DOWN);
+
+ return 0;
+}
+
+static int da9034_touch_open(struct input_dev *dev)
+{
+ struct da9034_touch *touch = input_get_drvdata(dev);
+ int ret;
+
+ ret = da903x_register_notifier(touch->da9034_dev, &touch->notifier,
+ DA9034_EVENT_PEN_DOWN | DA9034_EVENT_TSI_READY);
+ if (ret)
+ return -EBUSY;
+
+ /* Enable ADC LDO */
+ ret = da903x_set_bits(touch->da9034_dev,
+ DA9034_MANUAL_CTRL, DA9034_LDO_ADC_EN);
+ if (ret)
+ return ret;
+
+ /* TSI_DELAY: 3 slots, TSI_SKIP: 3 slots */
+ ret = da903x_write(touch->da9034_dev, DA9034_TSI_CTRL1, 0x1b);
+ if (ret)
+ return ret;
+
+ ret = da903x_write(touch->da9034_dev, DA9034_TSI_CTRL2, 0x00);
+ if (ret)
+ return ret;
+
+ touch->state = STATE_IDLE;
+ detect_pen_down(touch, 1);
+
+ return 0;
+}
+
+static void da9034_touch_close(struct input_dev *dev)
+{
+ struct da9034_touch *touch = input_get_drvdata(dev);
+
+ da903x_unregister_notifier(touch->da9034_dev, &touch->notifier,
+ DA9034_EVENT_PEN_DOWN | DA9034_EVENT_TSI_READY);
+
+ cancel_delayed_work_sync(&touch->tsi_work);
+
+ touch->state = STATE_IDLE;
+ stop_tsi(touch);
+ detect_pen_down(touch, 0);
+
+ /* Disable ADC LDO */
+ da903x_clr_bits(touch->da9034_dev,
+ DA9034_MANUAL_CTRL, DA9034_LDO_ADC_EN);
+}
+
+
+static int __devinit da9034_touch_probe(struct platform_device *pdev)
+{
+ struct da9034_touch_pdata *pdata = pdev->dev.platform_data;
+ struct da9034_touch *touch;
+ struct input_dev *input_dev;
+ int ret;
+
+ touch = kzalloc(sizeof(struct da9034_touch), GFP_KERNEL);
+ if (touch == NULL) {
+ dev_err(&pdev->dev, "failed to allocate driver data\n");
+ return -ENOMEM;
+ }
+
+ touch->da9034_dev = pdev->dev.parent;
+
+ if (pdata) {
+ touch->interval_ms = pdata->interval_ms;
+ touch->x_inverted = pdata->x_inverted;
+ touch->y_inverted = pdata->y_inverted;
+ } else
+ /* fallback into default */
+ touch->interval_ms = 10;
+
+ INIT_DELAYED_WORK(&touch->tsi_work, da9034_tsi_work);
+ touch->notifier.notifier_call = da9034_touch_notifier;
+
+ input_dev = input_allocate_device();
+ if (!input_dev) {
+ dev_err(&pdev->dev, "failed to allocate input device\n");
+ ret = -ENOMEM;
+ goto err_free_touch;
+ }
+
+ input_dev->name = pdev->name;
+ input_dev->open = da9034_touch_open;
+ input_dev->close = da9034_touch_close;
+ input_dev->dev.parent = &pdev->dev;
+
+ __set_bit(EV_ABS, input_dev->evbit);
+ __set_bit(ABS_X, input_dev->absbit);
+ __set_bit(ABS_Y, input_dev->absbit);
+ input_set_abs_params(input_dev, ABS_X, 0, 1023, 0, 0);
+ input_set_abs_params(input_dev, ABS_Y, 0, 1023, 0, 0);
+
+ __set_bit(EV_KEY, input_dev->evbit);
+ __set_bit(BTN_TOUCH, input_dev->keybit);
+
+ touch->input_dev = input_dev;
+ input_set_drvdata(input_dev, touch);
+
+ ret = input_register_device(input_dev);
+ if (ret)
+ goto err_free_input;
+
+ platform_set_drvdata(pdev, touch);
+ return 0;
+
+err_free_input:
+ input_free_device(input_dev);
+err_free_touch:
+ kfree(touch);
+ return ret;
+}
+
+static int __devexit da9034_touch_remove(struct platform_device *pdev)
+{
+ struct da9034_touch *touch = platform_get_drvdata(pdev);
+
+ input_unregister_device(touch->input_dev);
+ kfree(touch);
+
+ return 0;
+}
+
+static struct platform_driver da9034_touch_driver = {
+ .driver = {
+ .name = "da9034-touch",
+ .owner = THIS_MODULE,
+ },
+ .probe = da9034_touch_probe,
+ .remove = __devexit_p(da9034_touch_remove),
+};
+
+static int __init da9034_touch_init(void)
+{
+ return platform_driver_register(&da9034_touch_driver);
+}
+module_init(da9034_touch_init);
+
+static void __exit da9034_touch_exit(void)
+{
+ platform_driver_unregister(&da9034_touch_driver);
+}
+module_exit(da9034_touch_exit);
+
+MODULE_DESCRIPTION("Touchscreen driver for Dialog Semiconductor DA9034");
+MODULE_AUTHOR("Eric Miao <eric.miao@marvell.com>, Bin Yang <bin.yang@marvell.com>");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:da9034-touch");
diff --git a/drivers/input/touchscreen/dynapro.c b/drivers/input/touchscreen/dynapro.c
new file mode 100644
index 0000000..4553539
--- /dev/null
+++ b/drivers/input/touchscreen/dynapro.c
@@ -0,0 +1,206 @@
+/*
+ * Dynapro serial touchscreen driver
+ *
+ * Copyright (c) 2009 Tias Guns
+ * Based on the inexio driver (c) Vojtech Pavlik and Dan Streetman and
+ * Richard Lemon
+ *
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ */
+
+/*
+ * 2009/09/19 Tias Guns <tias@ulyssis.org>
+ * Copied inexio.c and edited for Dynapro protocol (from retired Xorg module)
+ */
+
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/input.h>
+#include <linux/serio.h>
+#include <linux/init.h>
+
+#define DRIVER_DESC "Dynapro serial touchscreen driver"
+
+MODULE_AUTHOR("Tias Guns <tias@ulyssis.org>");
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+/*
+ * Definitions & global arrays.
+ */
+
+#define DYNAPRO_FORMAT_TOUCH_BIT 0x40
+#define DYNAPRO_FORMAT_LENGTH 3
+#define DYNAPRO_RESPONSE_BEGIN_BYTE 0x80
+
+#define DYNAPRO_MIN_XC 0
+#define DYNAPRO_MAX_XC 0x3ff
+#define DYNAPRO_MIN_YC 0
+#define DYNAPRO_MAX_YC 0x3ff
+
+#define DYNAPRO_GET_XC(data) (data[1] | ((data[0] & 0x38) << 4))
+#define DYNAPRO_GET_YC(data) (data[2] | ((data[0] & 0x07) << 7))
+#define DYNAPRO_GET_TOUCHED(data) (DYNAPRO_FORMAT_TOUCH_BIT & data[0])
+
+/*
+ * Per-touchscreen data.
+ */
+
+struct dynapro {
+ struct input_dev *dev;
+ struct serio *serio;
+ int idx;
+ unsigned char data[DYNAPRO_FORMAT_LENGTH];
+ char phys[32];
+};
+
+static void dynapro_process_data(struct dynapro *pdynapro)
+{
+ struct input_dev *dev = pdynapro->dev;
+
+ if (DYNAPRO_FORMAT_LENGTH == ++pdynapro->idx) {
+ input_report_abs(dev, ABS_X, DYNAPRO_GET_XC(pdynapro->data));
+ input_report_abs(dev, ABS_Y, DYNAPRO_GET_YC(pdynapro->data));
+ input_report_key(dev, BTN_TOUCH,
+ DYNAPRO_GET_TOUCHED(pdynapro->data));
+ input_sync(dev);
+
+ pdynapro->idx = 0;
+ }
+}
+
+static irqreturn_t dynapro_interrupt(struct serio *serio,
+ unsigned char data, unsigned int flags)
+{
+ struct dynapro *pdynapro = serio_get_drvdata(serio);
+
+ pdynapro->data[pdynapro->idx] = data;
+
+ if (DYNAPRO_RESPONSE_BEGIN_BYTE & pdynapro->data[0])
+ dynapro_process_data(pdynapro);
+ else
+ dev_dbg(&serio->dev, "unknown/unsynchronized data: %x\n",
+ pdynapro->data[0]);
+
+ return IRQ_HANDLED;
+}
+
+static void dynapro_disconnect(struct serio *serio)
+{
+ struct dynapro *pdynapro = serio_get_drvdata(serio);
+
+ input_get_device(pdynapro->dev);
+ input_unregister_device(pdynapro->dev);
+ serio_close(serio);
+ serio_set_drvdata(serio, NULL);
+ input_put_device(pdynapro->dev);
+ kfree(pdynapro);
+}
+
+/*
+ * dynapro_connect() is the routine that is called when someone adds a
+ * new serio device that supports dynapro protocol and registers it as
+ * an input device. This is usually accomplished using inputattach.
+ */
+
+static int dynapro_connect(struct serio *serio, struct serio_driver *drv)
+{
+ struct dynapro *pdynapro;
+ struct input_dev *input_dev;
+ int err;
+
+ pdynapro = kzalloc(sizeof(struct dynapro), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!pdynapro || !input_dev) {
+ err = -ENOMEM;
+ goto fail1;
+ }
+
+ pdynapro->serio = serio;
+ pdynapro->dev = input_dev;
+ snprintf(pdynapro->phys, sizeof(pdynapro->phys),
+ "%s/input0", serio->phys);
+
+ input_dev->name = "Dynapro Serial TouchScreen";
+ input_dev->phys = pdynapro->phys;
+ input_dev->id.bustype = BUS_RS232;
+ input_dev->id.vendor = SERIO_DYNAPRO;
+ input_dev->id.product = 0;
+ input_dev->id.version = 0x0001;
+ input_dev->dev.parent = &serio->dev;
+ input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
+ input_dev->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH);
+ input_set_abs_params(pdynapro->dev, ABS_X,
+ DYNAPRO_MIN_XC, DYNAPRO_MAX_XC, 0, 0);
+ input_set_abs_params(pdynapro->dev, ABS_Y,
+ DYNAPRO_MIN_YC, DYNAPRO_MAX_YC, 0, 0);
+
+ serio_set_drvdata(serio, pdynapro);
+
+ err = serio_open(serio, drv);
+ if (err)
+ goto fail2;
+
+ err = input_register_device(pdynapro->dev);
+ if (err)
+ goto fail3;
+
+ return 0;
+
+ fail3: serio_close(serio);
+ fail2: serio_set_drvdata(serio, NULL);
+ fail1: input_free_device(input_dev);
+ kfree(pdynapro);
+ return err;
+}
+
+/*
+ * The serio driver structure.
+ */
+
+static struct serio_device_id dynapro_serio_ids[] = {
+ {
+ .type = SERIO_RS232,
+ .proto = SERIO_DYNAPRO,
+ .id = SERIO_ANY,
+ .extra = SERIO_ANY,
+ },
+ { 0 }
+};
+
+MODULE_DEVICE_TABLE(serio, dynapro_serio_ids);
+
+static struct serio_driver dynapro_drv = {
+ .driver = {
+ .name = "dynapro",
+ },
+ .description = DRIVER_DESC,
+ .id_table = dynapro_serio_ids,
+ .interrupt = dynapro_interrupt,
+ .connect = dynapro_connect,
+ .disconnect = dynapro_disconnect,
+};
+
+/*
+ * The functions for inserting/removing us as a module.
+ */
+
+static int __init dynapro_init(void)
+{
+ return serio_register_driver(&dynapro_drv);
+}
+
+static void __exit dynapro_exit(void)
+{
+ serio_unregister_driver(&dynapro_drv);
+}
+
+module_init(dynapro_init);
+module_exit(dynapro_exit);
diff --git a/drivers/input/touchscreen/eeti_ts.c b/drivers/input/touchscreen/eeti_ts.c
new file mode 100644
index 0000000..7f8f538
--- /dev/null
+++ b/drivers/input/touchscreen/eeti_ts.c
@@ -0,0 +1,339 @@
+/*
+ * Touch Screen driver for EETI's I2C connected touch screen panels
+ * Copyright (c) 2009 Daniel Mack <daniel@caiaq.de>
+ *
+ * See EETI's software guide for the protocol specification:
+ * http://home.eeti.com.tw/web20/eg/guide.htm
+ *
+ * Based on migor_ts.c
+ * Copyright (c) 2008 Magnus Damm
+ * Copyright (c) 2007 Ujjwal Pande <ujjwal@kenati.com>
+ *
+ * This file is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This file is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/kernel.h>
+#include <linux/input.h>
+#include <linux/interrupt.h>
+#include <linux/i2c.h>
+#include <linux/timer.h>
+#include <linux/gpio.h>
+#include <linux/input/eeti_ts.h>
+#include <linux/slab.h>
+
+static int flip_x;
+module_param(flip_x, bool, 0644);
+MODULE_PARM_DESC(flip_x, "flip x coordinate");
+
+static int flip_y;
+module_param(flip_y, bool, 0644);
+MODULE_PARM_DESC(flip_y, "flip y coordinate");
+
+struct eeti_ts_priv {
+ struct i2c_client *client;
+ struct input_dev *input;
+ struct work_struct work;
+ struct mutex mutex;
+ int irq, irq_active_high;
+};
+
+#define EETI_TS_BITDEPTH (11)
+#define EETI_MAXVAL ((1 << (EETI_TS_BITDEPTH + 1)) - 1)
+
+#define REPORT_BIT_PRESSED (1 << 0)
+#define REPORT_BIT_AD0 (1 << 1)
+#define REPORT_BIT_AD1 (1 << 2)
+#define REPORT_BIT_HAS_PRESSURE (1 << 6)
+#define REPORT_RES_BITS(v) (((v) >> 1) + EETI_TS_BITDEPTH)
+
+static inline int eeti_ts_irq_active(struct eeti_ts_priv *priv)
+{
+ return gpio_get_value(irq_to_gpio(priv->irq)) == priv->irq_active_high;
+}
+
+static void eeti_ts_read(struct work_struct *work)
+{
+ char buf[6];
+ unsigned int x, y, res, pressed, to = 100;
+ struct eeti_ts_priv *priv =
+ container_of(work, struct eeti_ts_priv, work);
+
+ mutex_lock(&priv->mutex);
+
+ while (eeti_ts_irq_active(priv) && --to)
+ i2c_master_recv(priv->client, buf, sizeof(buf));
+
+ if (!to) {
+ dev_err(&priv->client->dev,
+ "unable to clear IRQ - line stuck?\n");
+ goto out;
+ }
+
+ /* drop non-report packets */
+ if (!(buf[0] & 0x80))
+ goto out;
+
+ pressed = buf[0] & REPORT_BIT_PRESSED;
+ res = REPORT_RES_BITS(buf[0] & (REPORT_BIT_AD0 | REPORT_BIT_AD1));
+ x = buf[2] | (buf[1] << 8);
+ y = buf[4] | (buf[3] << 8);
+
+ /* fix the range to 11 bits */
+ x >>= res - EETI_TS_BITDEPTH;
+ y >>= res - EETI_TS_BITDEPTH;
+
+ if (flip_x)
+ x = EETI_MAXVAL - x;
+
+ if (flip_y)
+ y = EETI_MAXVAL - y;
+
+ if (buf[0] & REPORT_BIT_HAS_PRESSURE)
+ input_report_abs(priv->input, ABS_PRESSURE, buf[5]);
+
+ input_report_abs(priv->input, ABS_X, x);
+ input_report_abs(priv->input, ABS_Y, y);
+ input_report_key(priv->input, BTN_TOUCH, !!pressed);
+ input_sync(priv->input);
+
+out:
+ mutex_unlock(&priv->mutex);
+}
+
+static irqreturn_t eeti_ts_isr(int irq, void *dev_id)
+{
+ struct eeti_ts_priv *priv = dev_id;
+
+ /* postpone I2C transactions as we are atomic */
+ schedule_work(&priv->work);
+
+ return IRQ_HANDLED;
+}
+
+static void eeti_ts_start(struct eeti_ts_priv *priv)
+{
+ enable_irq(priv->irq);
+
+ /* Read the events once to arm the IRQ */
+ eeti_ts_read(&priv->work);
+}
+
+static void eeti_ts_stop(struct eeti_ts_priv *priv)
+{
+ disable_irq(priv->irq);
+ cancel_work_sync(&priv->work);
+}
+
+static int eeti_ts_open(struct input_dev *dev)
+{
+ struct eeti_ts_priv *priv = input_get_drvdata(dev);
+
+ eeti_ts_start(priv);
+
+ return 0;
+}
+
+static void eeti_ts_close(struct input_dev *dev)
+{
+ struct eeti_ts_priv *priv = input_get_drvdata(dev);
+
+ eeti_ts_stop(priv);
+}
+
+static int __devinit eeti_ts_probe(struct i2c_client *client,
+ const struct i2c_device_id *idp)
+{
+ struct eeti_ts_platform_data *pdata;
+ struct eeti_ts_priv *priv;
+ struct input_dev *input;
+ unsigned int irq_flags;
+ int err = -ENOMEM;
+
+ /*
+ * In contrast to what's described in the datasheet, there seems
+ * to be no way of probing the presence of that device using I2C
+ * commands. So we need to blindly believe it is there, and wait
+ * for interrupts to occur.
+ */
+
+ priv = kzalloc(sizeof(*priv), GFP_KERNEL);
+ if (!priv) {
+ dev_err(&client->dev, "failed to allocate driver data\n");
+ goto err0;
+ }
+
+ mutex_init(&priv->mutex);
+ input = input_allocate_device();
+
+ if (!input) {
+ dev_err(&client->dev, "Failed to allocate input device.\n");
+ goto err1;
+ }
+
+ input->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
+ input->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH);
+
+ input_set_abs_params(input, ABS_X, 0, EETI_MAXVAL, 0, 0);
+ input_set_abs_params(input, ABS_Y, 0, EETI_MAXVAL, 0, 0);
+ input_set_abs_params(input, ABS_PRESSURE, 0, 0xff, 0, 0);
+
+ input->name = client->name;
+ input->id.bustype = BUS_I2C;
+ input->dev.parent = &client->dev;
+ input->open = eeti_ts_open;
+ input->close = eeti_ts_close;
+
+ priv->client = client;
+ priv->input = input;
+ priv->irq = client->irq;
+
+ pdata = client->dev.platform_data;
+
+ if (pdata)
+ priv->irq_active_high = pdata->irq_active_high;
+
+ irq_flags = priv->irq_active_high ?
+ IRQF_TRIGGER_RISING : IRQF_TRIGGER_FALLING;
+
+ INIT_WORK(&priv->work, eeti_ts_read);
+ i2c_set_clientdata(client, priv);
+ input_set_drvdata(input, priv);
+
+ err = input_register_device(input);
+ if (err)
+ goto err1;
+
+ err = request_irq(priv->irq, eeti_ts_isr, irq_flags,
+ client->name, priv);
+ if (err) {
+ dev_err(&client->dev, "Unable to request touchscreen IRQ.\n");
+ goto err2;
+ }
+
+ /*
+ * Disable the device for now. It will be enabled once the
+ * input device is opened.
+ */
+ eeti_ts_stop(priv);
+
+ device_init_wakeup(&client->dev, 0);
+ return 0;
+
+err2:
+ input_unregister_device(input);
+ input = NULL; /* so we dont try to free it below */
+err1:
+ input_free_device(input);
+ kfree(priv);
+err0:
+ return err;
+}
+
+static int __devexit eeti_ts_remove(struct i2c_client *client)
+{
+ struct eeti_ts_priv *priv = i2c_get_clientdata(client);
+
+ free_irq(priv->irq, priv);
+ /*
+ * eeti_ts_stop() leaves IRQ disabled. We need to re-enable it
+ * so that device still works if we reload the driver.
+ */
+ enable_irq(priv->irq);
+
+ input_unregister_device(priv->input);
+ kfree(priv);
+
+ return 0;
+}
+
+#ifdef CONFIG_PM
+static int eeti_ts_suspend(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct eeti_ts_priv *priv = i2c_get_clientdata(client);
+ struct input_dev *input_dev = priv->input;
+
+ mutex_lock(&input_dev->mutex);
+
+ if (input_dev->users)
+ eeti_ts_stop(priv);
+
+ mutex_unlock(&input_dev->mutex);
+
+ if (device_may_wakeup(&client->dev))
+ enable_irq_wake(priv->irq);
+
+ return 0;
+}
+
+static int eeti_ts_resume(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct eeti_ts_priv *priv = i2c_get_clientdata(client);
+ struct input_dev *input_dev = priv->input;
+
+ if (device_may_wakeup(&client->dev))
+ disable_irq_wake(priv->irq);
+
+ mutex_lock(&input_dev->mutex);
+
+ if (input_dev->users)
+ eeti_ts_start(priv);
+
+ mutex_unlock(&input_dev->mutex);
+
+ return 0;
+}
+
+static SIMPLE_DEV_PM_OPS(eeti_ts_pm, eeti_ts_suspend, eeti_ts_resume);
+#endif
+
+static const struct i2c_device_id eeti_ts_id[] = {
+ { "eeti_ts", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, eeti_ts_id);
+
+static struct i2c_driver eeti_ts_driver = {
+ .driver = {
+ .name = "eeti_ts",
+#ifdef CONFIG_PM
+ .pm = &eeti_ts_pm,
+#endif
+ },
+ .probe = eeti_ts_probe,
+ .remove = __devexit_p(eeti_ts_remove),
+ .id_table = eeti_ts_id,
+};
+
+static int __init eeti_ts_init(void)
+{
+ return i2c_add_driver(&eeti_ts_driver);
+}
+
+static void __exit eeti_ts_exit(void)
+{
+ i2c_del_driver(&eeti_ts_driver);
+}
+
+MODULE_DESCRIPTION("EETI Touchscreen driver");
+MODULE_AUTHOR("Daniel Mack <daniel@caiaq.de>");
+MODULE_LICENSE("GPL");
+
+module_init(eeti_ts_init);
+module_exit(eeti_ts_exit);
+
diff --git a/drivers/input/touchscreen/elo.c b/drivers/input/touchscreen/elo.c
new file mode 100644
index 0000000..486d31b
--- /dev/null
+++ b/drivers/input/touchscreen/elo.c
@@ -0,0 +1,423 @@
+/*
+ * Elo serial touchscreen driver
+ *
+ * Copyright (c) 2004 Vojtech Pavlik
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ */
+
+/*
+ * This driver can handle serial Elo touchscreens using either the Elo standard
+ * 'E271-2210' 10-byte protocol, Elo legacy 'E281A-4002' 6-byte protocol, Elo
+ * legacy 'E271-140' 4-byte protocol and Elo legacy 'E261-280' 3-byte protocol.
+ */
+
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/input.h>
+#include <linux/serio.h>
+#include <linux/init.h>
+#include <linux/ctype.h>
+
+#define DRIVER_DESC "Elo serial touchscreen driver"
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+/*
+ * Definitions & global arrays.
+ */
+
+#define ELO_MAX_LENGTH 10
+
+#define ELO10_PACKET_LEN 8
+#define ELO10_TOUCH 0x03
+#define ELO10_PRESSURE 0x80
+
+#define ELO10_LEAD_BYTE 'U'
+
+#define ELO10_ID_CMD 'i'
+
+#define ELO10_TOUCH_PACKET 'T'
+#define ELO10_ACK_PACKET 'A'
+#define ELI10_ID_PACKET 'I'
+
+/*
+ * Per-touchscreen data.
+ */
+
+struct elo {
+ struct input_dev *dev;
+ struct serio *serio;
+ struct mutex cmd_mutex;
+ struct completion cmd_done;
+ int id;
+ int idx;
+ unsigned char expected_packet;
+ unsigned char csum;
+ unsigned char data[ELO_MAX_LENGTH];
+ unsigned char response[ELO10_PACKET_LEN];
+ char phys[32];
+};
+
+static void elo_process_data_10(struct elo *elo, unsigned char data)
+{
+ struct input_dev *dev = elo->dev;
+
+ elo->data[elo->idx] = data;
+
+ switch (elo->idx++) {
+ case 0:
+ elo->csum = 0xaa;
+ if (data != ELO10_LEAD_BYTE) {
+ dev_dbg(&elo->serio->dev,
+ "unsynchronized data: 0x%02x\n", data);
+ elo->idx = 0;
+ }
+ break;
+
+ case 9:
+ elo->idx = 0;
+ if (data != elo->csum) {
+ dev_dbg(&elo->serio->dev,
+ "bad checksum: 0x%02x, expected 0x%02x\n",
+ data, elo->csum);
+ break;
+ }
+ if (elo->data[1] != elo->expected_packet) {
+ if (elo->data[1] != ELO10_TOUCH_PACKET)
+ dev_dbg(&elo->serio->dev,
+ "unexpected packet: 0x%02x\n",
+ elo->data[1]);
+ break;
+ }
+ if (likely(elo->data[1] == ELO10_TOUCH_PACKET)) {
+ input_report_abs(dev, ABS_X, (elo->data[4] << 8) | elo->data[3]);
+ input_report_abs(dev, ABS_Y, (elo->data[6] << 8) | elo->data[5]);
+ if (elo->data[2] & ELO10_PRESSURE)
+ input_report_abs(dev, ABS_PRESSURE,
+ (elo->data[8] << 8) | elo->data[7]);
+ input_report_key(dev, BTN_TOUCH, elo->data[2] & ELO10_TOUCH);
+ input_sync(dev);
+ } else if (elo->data[1] == ELO10_ACK_PACKET) {
+ if (elo->data[2] == '0')
+ elo->expected_packet = ELO10_TOUCH_PACKET;
+ complete(&elo->cmd_done);
+ } else {
+ memcpy(elo->response, &elo->data[1], ELO10_PACKET_LEN);
+ elo->expected_packet = ELO10_ACK_PACKET;
+ }
+ break;
+ }
+ elo->csum += data;
+}
+
+static void elo_process_data_6(struct elo *elo, unsigned char data)
+{
+ struct input_dev *dev = elo->dev;
+
+ elo->data[elo->idx] = data;
+
+ switch (elo->idx++) {
+
+ case 0:
+ if ((data & 0xc0) != 0xc0)
+ elo->idx = 0;
+ break;
+
+ case 1:
+ if ((data & 0xc0) != 0x80)
+ elo->idx = 0;
+ break;
+
+ case 2:
+ if ((data & 0xc0) != 0x40)
+ elo->idx = 0;
+ break;
+
+ case 3:
+ if (data & 0xc0) {
+ elo->idx = 0;
+ break;
+ }
+
+ input_report_abs(dev, ABS_X, ((elo->data[0] & 0x3f) << 6) | (elo->data[1] & 0x3f));
+ input_report_abs(dev, ABS_Y, ((elo->data[2] & 0x3f) << 6) | (elo->data[3] & 0x3f));
+
+ if (elo->id == 2) {
+ input_report_key(dev, BTN_TOUCH, 1);
+ input_sync(dev);
+ elo->idx = 0;
+ }
+
+ break;
+
+ case 4:
+ if (data) {
+ input_sync(dev);
+ elo->idx = 0;
+ }
+ break;
+
+ case 5:
+ if ((data & 0xf0) == 0) {
+ input_report_abs(dev, ABS_PRESSURE, elo->data[5]);
+ input_report_key(dev, BTN_TOUCH, !!elo->data[5]);
+ }
+ input_sync(dev);
+ elo->idx = 0;
+ break;
+ }
+}
+
+static void elo_process_data_3(struct elo *elo, unsigned char data)
+{
+ struct input_dev *dev = elo->dev;
+
+ elo->data[elo->idx] = data;
+
+ switch (elo->idx++) {
+
+ case 0:
+ if ((data & 0x7f) != 0x01)
+ elo->idx = 0;
+ break;
+ case 2:
+ input_report_key(dev, BTN_TOUCH, !(elo->data[1] & 0x80));
+ input_report_abs(dev, ABS_X, elo->data[1]);
+ input_report_abs(dev, ABS_Y, elo->data[2]);
+ input_sync(dev);
+ elo->idx = 0;
+ break;
+ }
+}
+
+static irqreturn_t elo_interrupt(struct serio *serio,
+ unsigned char data, unsigned int flags)
+{
+ struct elo *elo = serio_get_drvdata(serio);
+
+ switch (elo->id) {
+ case 0:
+ elo_process_data_10(elo, data);
+ break;
+
+ case 1:
+ case 2:
+ elo_process_data_6(elo, data);
+ break;
+
+ case 3:
+ elo_process_data_3(elo, data);
+ break;
+ }
+
+ return IRQ_HANDLED;
+}
+
+static int elo_command_10(struct elo *elo, unsigned char *packet)
+{
+ int rc = -1;
+ int i;
+ unsigned char csum = 0xaa + ELO10_LEAD_BYTE;
+
+ mutex_lock(&elo->cmd_mutex);
+
+ serio_pause_rx(elo->serio);
+ elo->expected_packet = toupper(packet[0]);
+ init_completion(&elo->cmd_done);
+ serio_continue_rx(elo->serio);
+
+ if (serio_write(elo->serio, ELO10_LEAD_BYTE))
+ goto out;
+
+ for (i = 0; i < ELO10_PACKET_LEN; i++) {
+ csum += packet[i];
+ if (serio_write(elo->serio, packet[i]))
+ goto out;
+ }
+
+ if (serio_write(elo->serio, csum))
+ goto out;
+
+ wait_for_completion_timeout(&elo->cmd_done, HZ);
+
+ if (elo->expected_packet == ELO10_TOUCH_PACKET) {
+ /* We are back in reporting mode, the command was ACKed */
+ memcpy(packet, elo->response, ELO10_PACKET_LEN);
+ rc = 0;
+ }
+
+ out:
+ mutex_unlock(&elo->cmd_mutex);
+ return rc;
+}
+
+static int elo_setup_10(struct elo *elo)
+{
+ static const char *elo_types[] = { "Accu", "Dura", "Intelli", "Carroll" };
+ struct input_dev *dev = elo->dev;
+ unsigned char packet[ELO10_PACKET_LEN] = { ELO10_ID_CMD };
+
+ if (elo_command_10(elo, packet))
+ return -1;
+
+ dev->id.version = (packet[5] << 8) | packet[4];
+
+ input_set_abs_params(dev, ABS_X, 96, 4000, 0, 0);
+ input_set_abs_params(dev, ABS_Y, 96, 4000, 0, 0);
+ if (packet[3] & ELO10_PRESSURE)
+ input_set_abs_params(dev, ABS_PRESSURE, 0, 255, 0, 0);
+
+ dev_info(&elo->serio->dev,
+ "%sTouch touchscreen, fw: %02x.%02x, features: 0x%02x, controller: 0x%02x\n",
+ elo_types[(packet[1] -'0') & 0x03],
+ packet[5], packet[4], packet[3], packet[7]);
+
+ return 0;
+}
+
+/*
+ * elo_disconnect() is the opposite of elo_connect()
+ */
+
+static void elo_disconnect(struct serio *serio)
+{
+ struct elo *elo = serio_get_drvdata(serio);
+
+ input_get_device(elo->dev);
+ input_unregister_device(elo->dev);
+ serio_close(serio);
+ serio_set_drvdata(serio, NULL);
+ input_put_device(elo->dev);
+ kfree(elo);
+}
+
+/*
+ * elo_connect() is the routine that is called when someone adds a
+ * new serio device that supports Gunze protocol and registers it as
+ * an input device.
+ */
+
+static int elo_connect(struct serio *serio, struct serio_driver *drv)
+{
+ struct elo *elo;
+ struct input_dev *input_dev;
+ int err;
+
+ elo = kzalloc(sizeof(struct elo), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!elo || !input_dev) {
+ err = -ENOMEM;
+ goto fail1;
+ }
+
+ elo->serio = serio;
+ elo->id = serio->id.id;
+ elo->dev = input_dev;
+ elo->expected_packet = ELO10_TOUCH_PACKET;
+ mutex_init(&elo->cmd_mutex);
+ init_completion(&elo->cmd_done);
+ snprintf(elo->phys, sizeof(elo->phys), "%s/input0", serio->phys);
+
+ input_dev->name = "Elo Serial TouchScreen";
+ input_dev->phys = elo->phys;
+ input_dev->id.bustype = BUS_RS232;
+ input_dev->id.vendor = SERIO_ELO;
+ input_dev->id.product = elo->id;
+ input_dev->id.version = 0x0100;
+ input_dev->dev.parent = &serio->dev;
+
+ input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
+ input_dev->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH);
+
+ serio_set_drvdata(serio, elo);
+ err = serio_open(serio, drv);
+ if (err)
+ goto fail2;
+
+ switch (elo->id) {
+
+ case 0: /* 10-byte protocol */
+ if (elo_setup_10(elo))
+ goto fail3;
+
+ break;
+
+ case 1: /* 6-byte protocol */
+ input_set_abs_params(input_dev, ABS_PRESSURE, 0, 15, 0, 0);
+
+ case 2: /* 4-byte protocol */
+ input_set_abs_params(input_dev, ABS_X, 96, 4000, 0, 0);
+ input_set_abs_params(input_dev, ABS_Y, 96, 4000, 0, 0);
+ break;
+
+ case 3: /* 3-byte protocol */
+ input_set_abs_params(input_dev, ABS_X, 0, 255, 0, 0);
+ input_set_abs_params(input_dev, ABS_Y, 0, 255, 0, 0);
+ break;
+ }
+
+ err = input_register_device(elo->dev);
+ if (err)
+ goto fail3;
+
+ return 0;
+
+ fail3: serio_close(serio);
+ fail2: serio_set_drvdata(serio, NULL);
+ fail1: input_free_device(input_dev);
+ kfree(elo);
+ return err;
+}
+
+/*
+ * The serio driver structure.
+ */
+
+static struct serio_device_id elo_serio_ids[] = {
+ {
+ .type = SERIO_RS232,
+ .proto = SERIO_ELO,
+ .id = SERIO_ANY,
+ .extra = SERIO_ANY,
+ },
+ { 0 }
+};
+
+MODULE_DEVICE_TABLE(serio, elo_serio_ids);
+
+static struct serio_driver elo_drv = {
+ .driver = {
+ .name = "elo",
+ },
+ .description = DRIVER_DESC,
+ .id_table = elo_serio_ids,
+ .interrupt = elo_interrupt,
+ .connect = elo_connect,
+ .disconnect = elo_disconnect,
+};
+
+/*
+ * The functions for inserting/removing us as a module.
+ */
+
+static int __init elo_init(void)
+{
+ return serio_register_driver(&elo_drv);
+}
+
+static void __exit elo_exit(void)
+{
+ serio_unregister_driver(&elo_drv);
+}
+
+module_init(elo_init);
+module_exit(elo_exit);
diff --git a/drivers/input/touchscreen/fujitsu_ts.c b/drivers/input/touchscreen/fujitsu_ts.c
new file mode 100644
index 0000000..80b2180
--- /dev/null
+++ b/drivers/input/touchscreen/fujitsu_ts.c
@@ -0,0 +1,189 @@
+/*
+ * Fujitsu serial touchscreen driver
+ *
+ * Copyright (c) Dmitry Torokhov <dtor@mail.ru>
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ */
+
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/input.h>
+#include <linux/serio.h>
+#include <linux/init.h>
+
+#define DRIVER_DESC "Fujitsu serial touchscreen driver"
+
+MODULE_AUTHOR("Dmitry Torokhov <dtor@mail.ru>");
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+#define FUJITSU_LENGTH 5
+
+/*
+ * Per-touchscreen data.
+ */
+struct fujitsu {
+ struct input_dev *dev;
+ struct serio *serio;
+ int idx;
+ unsigned char data[FUJITSU_LENGTH];
+ char phys[32];
+};
+
+/*
+ * Decode serial data (5 bytes per packet)
+ * First byte
+ * 1 C 0 0 R S S S
+ * Where C is 1 while in calibration mode (which we don't use)
+ * R is 1 when no coordinate corection was done.
+ * S are button state
+ */
+static irqreturn_t fujitsu_interrupt(struct serio *serio,
+ unsigned char data, unsigned int flags)
+{
+ struct fujitsu *fujitsu = serio_get_drvdata(serio);
+ struct input_dev *dev = fujitsu->dev;
+
+ if (fujitsu->idx == 0) {
+ /* resync skip until start of frame */
+ if ((data & 0xf0) != 0x80)
+ return IRQ_HANDLED;
+ } else {
+ /* resync skip garbage */
+ if (data & 0x80) {
+ fujitsu->idx = 0;
+ return IRQ_HANDLED;
+ }
+ }
+
+ fujitsu->data[fujitsu->idx++] = data;
+ if (fujitsu->idx == FUJITSU_LENGTH) {
+ input_report_abs(dev, ABS_X,
+ (fujitsu->data[2] << 7) | fujitsu->data[1]);
+ input_report_abs(dev, ABS_Y,
+ (fujitsu->data[4] << 7) | fujitsu->data[3]);
+ input_report_key(dev, BTN_TOUCH,
+ (fujitsu->data[0] & 0x03) != 2);
+ input_sync(dev);
+ fujitsu->idx = 0;
+ }
+
+ return IRQ_HANDLED;
+}
+
+/*
+ * fujitsu_disconnect() is the opposite of fujitsu_connect()
+ */
+static void fujitsu_disconnect(struct serio *serio)
+{
+ struct fujitsu *fujitsu = serio_get_drvdata(serio);
+
+ input_get_device(fujitsu->dev);
+ input_unregister_device(fujitsu->dev);
+ serio_close(serio);
+ serio_set_drvdata(serio, NULL);
+ input_put_device(fujitsu->dev);
+ kfree(fujitsu);
+}
+
+/*
+ * fujitsu_connect() is the routine that is called when someone adds a
+ * new serio device that supports the Fujitsu protocol and registers it
+ * as input device.
+ */
+static int fujitsu_connect(struct serio *serio, struct serio_driver *drv)
+{
+ struct fujitsu *fujitsu;
+ struct input_dev *input_dev;
+ int err;
+
+ fujitsu = kzalloc(sizeof(struct fujitsu), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!fujitsu || !input_dev) {
+ err = -ENOMEM;
+ goto fail1;
+ }
+
+ fujitsu->serio = serio;
+ fujitsu->dev = input_dev;
+ snprintf(fujitsu->phys, sizeof(fujitsu->phys),
+ "%s/input0", serio->phys);
+
+ input_dev->name = "Fujitsu Serial Touchscreen";
+ input_dev->phys = fujitsu->phys;
+ input_dev->id.bustype = BUS_RS232;
+ input_dev->id.vendor = SERIO_FUJITSU;
+ input_dev->id.product = 0;
+ input_dev->id.version = 0x0100;
+ input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
+ input_dev->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH);
+
+ input_set_abs_params(input_dev, ABS_X, 0, 4096, 0, 0);
+ input_set_abs_params(input_dev, ABS_Y, 0, 4096, 0, 0);
+ serio_set_drvdata(serio, fujitsu);
+
+ err = serio_open(serio, drv);
+ if (err)
+ goto fail2;
+
+ err = input_register_device(fujitsu->dev);
+ if (err)
+ goto fail3;
+
+ return 0;
+
+ fail3:
+ serio_close(serio);
+ fail2:
+ serio_set_drvdata(serio, NULL);
+ fail1:
+ input_free_device(input_dev);
+ kfree(fujitsu);
+ return err;
+}
+
+/*
+ * The serio driver structure.
+ */
+static struct serio_device_id fujitsu_serio_ids[] = {
+ {
+ .type = SERIO_RS232,
+ .proto = SERIO_FUJITSU,
+ .id = SERIO_ANY,
+ .extra = SERIO_ANY,
+ },
+ { 0 }
+};
+
+MODULE_DEVICE_TABLE(serio, fujitsu_serio_ids);
+
+static struct serio_driver fujitsu_drv = {
+ .driver = {
+ .name = "fujitsu_ts",
+ },
+ .description = DRIVER_DESC,
+ .id_table = fujitsu_serio_ids,
+ .interrupt = fujitsu_interrupt,
+ .connect = fujitsu_connect,
+ .disconnect = fujitsu_disconnect,
+};
+
+static int __init fujitsu_init(void)
+{
+ return serio_register_driver(&fujitsu_drv);
+}
+
+static void __exit fujitsu_exit(void)
+{
+ serio_unregister_driver(&fujitsu_drv);
+}
+
+module_init(fujitsu_init);
+module_exit(fujitsu_exit);
diff --git a/drivers/input/touchscreen/gunze.c b/drivers/input/touchscreen/gunze.c
new file mode 100644
index 0000000..a54f90e0
--- /dev/null
+++ b/drivers/input/touchscreen/gunze.c
@@ -0,0 +1,204 @@
+/*
+ * Copyright (c) 2000-2001 Vojtech Pavlik
+ */
+
+/*
+ * Gunze AHL-51S touchscreen driver for Linux
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * Should you need to contact me, the author, you can do so either by
+ * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
+ * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
+ */
+
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/input.h>
+#include <linux/serio.h>
+#include <linux/init.h>
+
+#define DRIVER_DESC "Gunze AHL-51S touchscreen driver"
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+/*
+ * Definitions & global arrays.
+ */
+
+#define GUNZE_MAX_LENGTH 10
+
+/*
+ * Per-touchscreen data.
+ */
+
+struct gunze {
+ struct input_dev *dev;
+ struct serio *serio;
+ int idx;
+ unsigned char data[GUNZE_MAX_LENGTH];
+ char phys[32];
+};
+
+static void gunze_process_packet(struct gunze* gunze)
+{
+ struct input_dev *dev = gunze->dev;
+
+ if (gunze->idx != GUNZE_MAX_LENGTH || gunze->data[5] != ',' ||
+ (gunze->data[0] != 'T' && gunze->data[0] != 'R')) {
+ printk(KERN_WARNING "gunze.c: bad packet: >%.*s<\n", GUNZE_MAX_LENGTH, gunze->data);
+ return;
+ }
+
+ input_report_abs(dev, ABS_X, simple_strtoul(gunze->data + 1, NULL, 10));
+ input_report_abs(dev, ABS_Y, 1024 - simple_strtoul(gunze->data + 6, NULL, 10));
+ input_report_key(dev, BTN_TOUCH, gunze->data[0] == 'T');
+ input_sync(dev);
+}
+
+static irqreturn_t gunze_interrupt(struct serio *serio,
+ unsigned char data, unsigned int flags)
+{
+ struct gunze* gunze = serio_get_drvdata(serio);
+
+ if (data == '\r') {
+ gunze_process_packet(gunze);
+ gunze->idx = 0;
+ } else {
+ if (gunze->idx < GUNZE_MAX_LENGTH)
+ gunze->data[gunze->idx++] = data;
+ }
+ return IRQ_HANDLED;
+}
+
+/*
+ * gunze_disconnect() is the opposite of gunze_connect()
+ */
+
+static void gunze_disconnect(struct serio *serio)
+{
+ struct gunze *gunze = serio_get_drvdata(serio);
+
+ input_get_device(gunze->dev);
+ input_unregister_device(gunze->dev);
+ serio_close(serio);
+ serio_set_drvdata(serio, NULL);
+ input_put_device(gunze->dev);
+ kfree(gunze);
+}
+
+/*
+ * gunze_connect() is the routine that is called when someone adds a
+ * new serio device that supports Gunze protocol and registers it as
+ * an input device.
+ */
+
+static int gunze_connect(struct serio *serio, struct serio_driver *drv)
+{
+ struct gunze *gunze;
+ struct input_dev *input_dev;
+ int err;
+
+ gunze = kzalloc(sizeof(struct gunze), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!gunze || !input_dev) {
+ err = -ENOMEM;
+ goto fail1;
+ }
+
+ gunze->serio = serio;
+ gunze->dev = input_dev;
+ snprintf(gunze->phys, sizeof(serio->phys), "%s/input0", serio->phys);
+
+ input_dev->name = "Gunze AHL-51S TouchScreen";
+ input_dev->phys = gunze->phys;
+ input_dev->id.bustype = BUS_RS232;
+ input_dev->id.vendor = SERIO_GUNZE;
+ input_dev->id.product = 0x0051;
+ input_dev->id.version = 0x0100;
+ input_dev->dev.parent = &serio->dev;
+ input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
+ input_dev->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH);
+ input_set_abs_params(input_dev, ABS_X, 24, 1000, 0, 0);
+ input_set_abs_params(input_dev, ABS_Y, 24, 1000, 0, 0);
+
+ serio_set_drvdata(serio, gunze);
+
+ err = serio_open(serio, drv);
+ if (err)
+ goto fail2;
+
+ err = input_register_device(gunze->dev);
+ if (err)
+ goto fail3;
+
+ return 0;
+
+ fail3: serio_close(serio);
+ fail2: serio_set_drvdata(serio, NULL);
+ fail1: input_free_device(input_dev);
+ kfree(gunze);
+ return err;
+}
+
+/*
+ * The serio driver structure.
+ */
+
+static struct serio_device_id gunze_serio_ids[] = {
+ {
+ .type = SERIO_RS232,
+ .proto = SERIO_GUNZE,
+ .id = SERIO_ANY,
+ .extra = SERIO_ANY,
+ },
+ { 0 }
+};
+
+MODULE_DEVICE_TABLE(serio, gunze_serio_ids);
+
+static struct serio_driver gunze_drv = {
+ .driver = {
+ .name = "gunze",
+ },
+ .description = DRIVER_DESC,
+ .id_table = gunze_serio_ids,
+ .interrupt = gunze_interrupt,
+ .connect = gunze_connect,
+ .disconnect = gunze_disconnect,
+};
+
+/*
+ * The functions for inserting/removing us as a module.
+ */
+
+static int __init gunze_init(void)
+{
+ return serio_register_driver(&gunze_drv);
+}
+
+static void __exit gunze_exit(void)
+{
+ serio_unregister_driver(&gunze_drv);
+}
+
+module_init(gunze_init);
+module_exit(gunze_exit);
diff --git a/drivers/input/touchscreen/h3600_ts_input.c b/drivers/input/touchscreen/h3600_ts_input.c
new file mode 100644
index 0000000..6107e56
--- /dev/null
+++ b/drivers/input/touchscreen/h3600_ts_input.c
@@ -0,0 +1,494 @@
+/*
+ * Copyright (c) 2001 "Crazy" James Simmons jsimmons@transvirtual.com
+ *
+ * Sponsored by Transvirtual Technology.
+ *
+ * Derived from the code in h3600_ts.[ch] by Charles Flynn
+ */
+
+/*
+ * Driver for the h3600 Touch Screen and other Atmel controlled devices.
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * Should you need to contact me, the author, you can do so by
+ * e-mail - mail your message to <jsimmons@transvirtual.com>.
+ */
+
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/input.h>
+#include <linux/serio.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+
+/* SA1100 serial defines */
+#include <mach/hardware.h>
+#include <mach/irqs.h>
+
+#define DRIVER_DESC "H3600 touchscreen driver"
+
+MODULE_AUTHOR("James Simmons <jsimmons@transvirtual.com>");
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+/*
+ * Definitions & global arrays.
+ */
+
+/* The start and end of frame characters SOF and EOF */
+#define CHAR_SOF 0x02
+#define CHAR_EOF 0x03
+#define FRAME_OVERHEAD 3 /* CHAR_SOF,CHAR_EOF,LENGTH = 3 */
+
+/*
+ Atmel events and response IDs contained in frame.
+ Programmer has no control over these numbers.
+ TODO there are holes - specifically 1,7,0x0a
+*/
+#define VERSION_ID 0 /* Get Version (request/response) */
+#define KEYBD_ID 2 /* Keyboard (event) */
+#define TOUCHS_ID 3 /* Touch Screen (event)*/
+#define EEPROM_READ_ID 4 /* (request/response) */
+#define EEPROM_WRITE_ID 5 /* (request/response) */
+#define THERMAL_ID 6 /* (request/response) */
+#define NOTIFY_LED_ID 8 /* (request/response) */
+#define BATTERY_ID 9 /* (request/response) */
+#define SPI_READ_ID 0x0b /* ( request/response) */
+#define SPI_WRITE_ID 0x0c /* ( request/response) */
+#define FLITE_ID 0x0d /* backlight ( request/response) */
+#define STX_ID 0xa1 /* extension pack status (req/resp) */
+
+#define MAX_ID 14
+
+#define H3600_MAX_LENGTH 16
+#define H3600_KEY 0xf
+
+#define H3600_SCANCODE_RECORD 1 /* 1 -> record button */
+#define H3600_SCANCODE_CALENDAR 2 /* 2 -> calendar */
+#define H3600_SCANCODE_CONTACTS 3 /* 3 -> contact */
+#define H3600_SCANCODE_Q 4 /* 4 -> Q button */
+#define H3600_SCANCODE_START 5 /* 5 -> start menu */
+#define H3600_SCANCODE_UP 6 /* 6 -> up */
+#define H3600_SCANCODE_RIGHT 7 /* 7 -> right */
+#define H3600_SCANCODE_LEFT 8 /* 8 -> left */
+#define H3600_SCANCODE_DOWN 9 /* 9 -> down */
+
+/*
+ * Per-touchscreen data.
+ */
+struct h3600_dev {
+ struct input_dev *dev;
+ struct serio *serio;
+ unsigned char event; /* event ID from packet */
+ unsigned char chksum;
+ unsigned char len;
+ unsigned char idx;
+ unsigned char buf[H3600_MAX_LENGTH];
+ char phys[32];
+};
+
+static irqreturn_t action_button_handler(int irq, void *dev_id)
+{
+ int down = (GPLR & GPIO_BITSY_ACTION_BUTTON) ? 0 : 1;
+ struct input_dev *dev = dev_id;
+
+ input_report_key(dev, KEY_ENTER, down);
+ input_sync(dev);
+
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t npower_button_handler(int irq, void *dev_id)
+{
+ int down = (GPLR & GPIO_BITSY_NPOWER_BUTTON) ? 0 : 1;
+ struct input_dev *dev = dev_id;
+
+ /*
+ * This interrupt is only called when we release the key. So we have
+ * to fake a key press.
+ */
+ input_report_key(dev, KEY_SUSPEND, 1);
+ input_report_key(dev, KEY_SUSPEND, down);
+ input_sync(dev);
+
+ return IRQ_HANDLED;
+}
+
+#ifdef CONFIG_PM
+
+static int flite_brightness = 25;
+
+enum flite_pwr {
+ FLITE_PWR_OFF = 0,
+ FLITE_PWR_ON = 1
+};
+
+/*
+ * h3600_flite_power: enables or disables power to frontlight, using last bright */
+unsigned int h3600_flite_power(struct input_dev *dev, enum flite_pwr pwr)
+{
+ unsigned char brightness = (pwr == FLITE_PWR_OFF) ? 0 : flite_brightness;
+ struct h3600_dev *ts = input_get_drvdata(dev);
+
+ /* Must be in this order */
+ serio_write(ts->serio, 1);
+ serio_write(ts->serio, pwr);
+ serio_write(ts->serio, brightness);
+
+ return 0;
+}
+
+#endif
+
+/*
+ * This function translates the native event packets to linux input event
+ * packets. Some packets coming from serial are not touchscreen related. In
+ * this case we send them off to be processed elsewhere.
+ */
+static void h3600ts_process_packet(struct h3600_dev *ts)
+{
+ struct input_dev *dev = ts->dev;
+ static int touched = 0;
+ int key, down = 0;
+
+ switch (ts->event) {
+ /*
+ Buttons - returned as a single byte
+ 7 6 5 4 3 2 1 0
+ S x x x N N N N
+
+ S switch state ( 0=pressed 1=released)
+ x Unused.
+ NNNN switch number 0-15
+
+ Note: This is true for non interrupt generated key events.
+ */
+ case KEYBD_ID:
+ down = (ts->buf[0] & 0x80) ? 0 : 1;
+
+ switch (ts->buf[0] & 0x7f) {
+ case H3600_SCANCODE_RECORD:
+ key = KEY_RECORD;
+ break;
+ case H3600_SCANCODE_CALENDAR:
+ key = KEY_PROG1;
+ break;
+ case H3600_SCANCODE_CONTACTS:
+ key = KEY_PROG2;
+ break;
+ case H3600_SCANCODE_Q:
+ key = KEY_Q;
+ break;
+ case H3600_SCANCODE_START:
+ key = KEY_PROG3;
+ break;
+ case H3600_SCANCODE_UP:
+ key = KEY_UP;
+ break;
+ case H3600_SCANCODE_RIGHT:
+ key = KEY_RIGHT;
+ break;
+ case H3600_SCANCODE_LEFT:
+ key = KEY_LEFT;
+ break;
+ case H3600_SCANCODE_DOWN:
+ key = KEY_DOWN;
+ break;
+ default:
+ key = 0;
+ }
+ if (key)
+ input_report_key(dev, key, down);
+ break;
+ /*
+ * Native touchscreen event data is formatted as shown below:-
+ *
+ * +-------+-------+-------+-------+
+ * | Xmsb | Xlsb | Ymsb | Ylsb |
+ * +-------+-------+-------+-------+
+ * byte 0 1 2 3
+ */
+ case TOUCHS_ID:
+ if (!touched) {
+ input_report_key(dev, BTN_TOUCH, 1);
+ touched = 1;
+ }
+
+ if (ts->len) {
+ unsigned short x, y;
+
+ x = ts->buf[0]; x <<= 8; x += ts->buf[1];
+ y = ts->buf[2]; y <<= 8; y += ts->buf[3];
+
+ input_report_abs(dev, ABS_X, x);
+ input_report_abs(dev, ABS_Y, y);
+ } else {
+ input_report_key(dev, BTN_TOUCH, 0);
+ touched = 0;
+ }
+ break;
+ default:
+ /* Send a non input event elsewhere */
+ break;
+ }
+
+ input_sync(dev);
+}
+
+/*
+ * h3600ts_event() handles events from the input module.
+ */
+static int h3600ts_event(struct input_dev *dev, unsigned int type,
+ unsigned int code, int value)
+{
+#if 0
+ struct h3600_dev *ts = input_get_drvdata(dev);
+
+ switch (type) {
+ case EV_LED: {
+ // serio_write(ts->serio, SOME_CMD);
+ return 0;
+ }
+ }
+ return -1;
+#endif
+ return 0;
+}
+
+/*
+ Frame format
+ byte 1 2 3 len + 4
+ +-------+---------------+---------------+--=------------+
+ |SOF |id |len | len bytes | Chksum |
+ +-------+---------------+---------------+--=------------+
+ bit 0 7 8 11 12 15 16
+
+ +-------+---------------+-------+
+ |SOF |id |0 |Chksum | - Note Chksum does not include SOF
+ +-------+---------------+-------+
+ bit 0 7 8 11 12 15 16
+
+*/
+
+static int state;
+
+/* decode States */
+#define STATE_SOF 0 /* start of FRAME */
+#define STATE_ID 1 /* state where we decode the ID & len */
+#define STATE_DATA 2 /* state where we decode data */
+#define STATE_EOF 3 /* state where we decode checksum or EOF */
+
+static irqreturn_t h3600ts_interrupt(struct serio *serio, unsigned char data,
+ unsigned int flags)
+{
+ struct h3600_dev *ts = serio_get_drvdata(serio);
+
+ /*
+ * We have a new frame coming in.
+ */
+ switch (state) {
+ case STATE_SOF:
+ if (data == CHAR_SOF)
+ state = STATE_ID;
+ break;
+ case STATE_ID:
+ ts->event = (data & 0xf0) >> 4;
+ ts->len = (data & 0xf);
+ ts->idx = 0;
+ if (ts->event >= MAX_ID) {
+ state = STATE_SOF;
+ break;
+ }
+ ts->chksum = data;
+ state = (ts->len > 0) ? STATE_DATA : STATE_EOF;
+ break;
+ case STATE_DATA:
+ ts->chksum += data;
+ ts->buf[ts->idx]= data;
+ if (++ts->idx == ts->len)
+ state = STATE_EOF;
+ break;
+ case STATE_EOF:
+ state = STATE_SOF;
+ if (data == CHAR_EOF || data == ts->chksum)
+ h3600ts_process_packet(ts);
+ break;
+ default:
+ printk("Error3\n");
+ break;
+ }
+
+ return IRQ_HANDLED;
+}
+
+/*
+ * h3600ts_connect() is the routine that is called when someone adds a
+ * new serio device that supports H3600 protocol and registers it as
+ * an input device.
+ */
+static int h3600ts_connect(struct serio *serio, struct serio_driver *drv)
+{
+ struct h3600_dev *ts;
+ struct input_dev *input_dev;
+ int err;
+
+ ts = kzalloc(sizeof(struct h3600_dev), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!ts || !input_dev) {
+ err = -ENOMEM;
+ goto fail1;
+ }
+
+ ts->serio = serio;
+ ts->dev = input_dev;
+ snprintf(ts->phys, sizeof(ts->phys), "%s/input0", serio->phys);
+
+ input_dev->name = "H3600 TouchScreen";
+ input_dev->phys = ts->phys;
+ input_dev->id.bustype = BUS_RS232;
+ input_dev->id.vendor = SERIO_H3600;
+ input_dev->id.product = 0x0666; /* FIXME !!! We can ask the hardware */
+ input_dev->id.version = 0x0100;
+ input_dev->dev.parent = &serio->dev;
+
+ input_set_drvdata(input_dev, ts);
+
+ input_dev->event = h3600ts_event;
+
+ input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS) |
+ BIT_MASK(EV_LED) | BIT_MASK(EV_PWR);
+ input_dev->ledbit[0] = BIT_MASK(LED_SLEEP);
+ input_set_abs_params(input_dev, ABS_X, 60, 985, 0, 0);
+ input_set_abs_params(input_dev, ABS_Y, 35, 1024, 0, 0);
+
+ set_bit(KEY_RECORD, input_dev->keybit);
+ set_bit(KEY_Q, input_dev->keybit);
+ set_bit(KEY_PROG1, input_dev->keybit);
+ set_bit(KEY_PROG2, input_dev->keybit);
+ set_bit(KEY_PROG3, input_dev->keybit);
+ set_bit(KEY_UP, input_dev->keybit);
+ set_bit(KEY_RIGHT, input_dev->keybit);
+ set_bit(KEY_LEFT, input_dev->keybit);
+ set_bit(KEY_DOWN, input_dev->keybit);
+ set_bit(KEY_ENTER, input_dev->keybit);
+ set_bit(KEY_SUSPEND, input_dev->keybit);
+ set_bit(BTN_TOUCH, input_dev->keybit);
+
+ /* Device specific stuff */
+ set_GPIO_IRQ_edge(GPIO_BITSY_ACTION_BUTTON, GPIO_BOTH_EDGES);
+ set_GPIO_IRQ_edge(GPIO_BITSY_NPOWER_BUTTON, GPIO_RISING_EDGE);
+
+ if (request_irq(IRQ_GPIO_BITSY_ACTION_BUTTON, action_button_handler,
+ IRQF_SHARED, "h3600_action", ts->dev)) {
+ printk(KERN_ERR "h3600ts.c: Could not allocate Action Button IRQ!\n");
+ err = -EBUSY;
+ goto fail1;
+ }
+
+ if (request_irq(IRQ_GPIO_BITSY_NPOWER_BUTTON, npower_button_handler,
+ IRQF_SHARED, "h3600_suspend", ts->dev)) {
+ printk(KERN_ERR "h3600ts.c: Could not allocate Power Button IRQ!\n");
+ err = -EBUSY;
+ goto fail2;
+ }
+
+ serio_set_drvdata(serio, ts);
+
+ err = serio_open(serio, drv);
+ if (err)
+ goto fail3;
+
+ //h3600_flite_control(1, 25); /* default brightness */
+ err = input_register_device(ts->dev);
+ if (err)
+ goto fail4;
+
+ return 0;
+
+fail4: serio_close(serio);
+fail3: serio_set_drvdata(serio, NULL);
+ free_irq(IRQ_GPIO_BITSY_NPOWER_BUTTON, ts->dev);
+fail2: free_irq(IRQ_GPIO_BITSY_ACTION_BUTTON, ts->dev);
+fail1: input_free_device(input_dev);
+ kfree(ts);
+ return err;
+}
+
+/*
+ * h3600ts_disconnect() is the opposite of h3600ts_connect()
+ */
+
+static void h3600ts_disconnect(struct serio *serio)
+{
+ struct h3600_dev *ts = serio_get_drvdata(serio);
+
+ free_irq(IRQ_GPIO_BITSY_ACTION_BUTTON, ts->dev);
+ free_irq(IRQ_GPIO_BITSY_NPOWER_BUTTON, ts->dev);
+ input_get_device(ts->dev);
+ input_unregister_device(ts->dev);
+ serio_close(serio);
+ serio_set_drvdata(serio, NULL);
+ input_put_device(ts->dev);
+ kfree(ts);
+}
+
+/*
+ * The serio driver structure.
+ */
+
+static struct serio_device_id h3600ts_serio_ids[] = {
+ {
+ .type = SERIO_RS232,
+ .proto = SERIO_H3600,
+ .id = SERIO_ANY,
+ .extra = SERIO_ANY,
+ },
+ { 0 }
+};
+
+MODULE_DEVICE_TABLE(serio, h3600ts_serio_ids);
+
+static struct serio_driver h3600ts_drv = {
+ .driver = {
+ .name = "h3600ts",
+ },
+ .description = DRIVER_DESC,
+ .id_table = h3600ts_serio_ids,
+ .interrupt = h3600ts_interrupt,
+ .connect = h3600ts_connect,
+ .disconnect = h3600ts_disconnect,
+};
+
+/*
+ * The functions for inserting/removing us as a module.
+ */
+
+static int __init h3600ts_init(void)
+{
+ return serio_register_driver(&h3600ts_drv);
+}
+
+static void __exit h3600ts_exit(void)
+{
+ serio_unregister_driver(&h3600ts_drv);
+}
+
+module_init(h3600ts_init);
+module_exit(h3600ts_exit);
diff --git a/drivers/input/touchscreen/hampshire.c b/drivers/input/touchscreen/hampshire.c
new file mode 100644
index 0000000..2da6cc3
--- /dev/null
+++ b/drivers/input/touchscreen/hampshire.c
@@ -0,0 +1,205 @@
+/*
+ * Hampshire serial touchscreen driver
+ *
+ * Copyright (c) 2010 Adam Bennett
+ * Based on the dynapro driver (c) Tias Guns
+ *
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ */
+
+/*
+ * 2010/04/08 Adam Bennett <abennett72@gmail.com>
+ * Copied dynapro.c and edited for Hampshire 4-byte protocol
+ */
+
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/input.h>
+#include <linux/serio.h>
+#include <linux/init.h>
+
+#define DRIVER_DESC "Hampshire serial touchscreen driver"
+
+MODULE_AUTHOR("Adam Bennett <abennett72@gmail.com>");
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+/*
+ * Definitions & global arrays.
+ */
+
+#define HAMPSHIRE_FORMAT_TOUCH_BIT 0x40
+#define HAMPSHIRE_FORMAT_LENGTH 4
+#define HAMPSHIRE_RESPONSE_BEGIN_BYTE 0x80
+
+#define HAMPSHIRE_MIN_XC 0
+#define HAMPSHIRE_MAX_XC 0x1000
+#define HAMPSHIRE_MIN_YC 0
+#define HAMPSHIRE_MAX_YC 0x1000
+
+#define HAMPSHIRE_GET_XC(data) (((data[3] & 0x0c) >> 2) | (data[1] << 2) | ((data[0] & 0x38) << 6))
+#define HAMPSHIRE_GET_YC(data) ((data[3] & 0x03) | (data[2] << 2) | ((data[0] & 0x07) << 9))
+#define HAMPSHIRE_GET_TOUCHED(data) (HAMPSHIRE_FORMAT_TOUCH_BIT & data[0])
+
+/*
+ * Per-touchscreen data.
+ */
+
+struct hampshire {
+ struct input_dev *dev;
+ struct serio *serio;
+ int idx;
+ unsigned char data[HAMPSHIRE_FORMAT_LENGTH];
+ char phys[32];
+};
+
+static void hampshire_process_data(struct hampshire *phampshire)
+{
+ struct input_dev *dev = phampshire->dev;
+
+ if (HAMPSHIRE_FORMAT_LENGTH == ++phampshire->idx) {
+ input_report_abs(dev, ABS_X, HAMPSHIRE_GET_XC(phampshire->data));
+ input_report_abs(dev, ABS_Y, HAMPSHIRE_GET_YC(phampshire->data));
+ input_report_key(dev, BTN_TOUCH,
+ HAMPSHIRE_GET_TOUCHED(phampshire->data));
+ input_sync(dev);
+
+ phampshire->idx = 0;
+ }
+}
+
+static irqreturn_t hampshire_interrupt(struct serio *serio,
+ unsigned char data, unsigned int flags)
+{
+ struct hampshire *phampshire = serio_get_drvdata(serio);
+
+ phampshire->data[phampshire->idx] = data;
+
+ if (HAMPSHIRE_RESPONSE_BEGIN_BYTE & phampshire->data[0])
+ hampshire_process_data(phampshire);
+ else
+ dev_dbg(&serio->dev, "unknown/unsynchronized data: %x\n",
+ phampshire->data[0]);
+
+ return IRQ_HANDLED;
+}
+
+static void hampshire_disconnect(struct serio *serio)
+{
+ struct hampshire *phampshire = serio_get_drvdata(serio);
+
+ input_get_device(phampshire->dev);
+ input_unregister_device(phampshire->dev);
+ serio_close(serio);
+ serio_set_drvdata(serio, NULL);
+ input_put_device(phampshire->dev);
+ kfree(phampshire);
+}
+
+/*
+ * hampshire_connect() is the routine that is called when someone adds a
+ * new serio device that supports hampshire protocol and registers it as
+ * an input device. This is usually accomplished using inputattach.
+ */
+
+static int hampshire_connect(struct serio *serio, struct serio_driver *drv)
+{
+ struct hampshire *phampshire;
+ struct input_dev *input_dev;
+ int err;
+
+ phampshire = kzalloc(sizeof(struct hampshire), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!phampshire || !input_dev) {
+ err = -ENOMEM;
+ goto fail1;
+ }
+
+ phampshire->serio = serio;
+ phampshire->dev = input_dev;
+ snprintf(phampshire->phys, sizeof(phampshire->phys),
+ "%s/input0", serio->phys);
+
+ input_dev->name = "Hampshire Serial TouchScreen";
+ input_dev->phys = phampshire->phys;
+ input_dev->id.bustype = BUS_RS232;
+ input_dev->id.vendor = SERIO_HAMPSHIRE;
+ input_dev->id.product = 0;
+ input_dev->id.version = 0x0001;
+ input_dev->dev.parent = &serio->dev;
+ input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
+ input_dev->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH);
+ input_set_abs_params(phampshire->dev, ABS_X,
+ HAMPSHIRE_MIN_XC, HAMPSHIRE_MAX_XC, 0, 0);
+ input_set_abs_params(phampshire->dev, ABS_Y,
+ HAMPSHIRE_MIN_YC, HAMPSHIRE_MAX_YC, 0, 0);
+
+ serio_set_drvdata(serio, phampshire);
+
+ err = serio_open(serio, drv);
+ if (err)
+ goto fail2;
+
+ err = input_register_device(phampshire->dev);
+ if (err)
+ goto fail3;
+
+ return 0;
+
+ fail3: serio_close(serio);
+ fail2: serio_set_drvdata(serio, NULL);
+ fail1: input_free_device(input_dev);
+ kfree(phampshire);
+ return err;
+}
+
+/*
+ * The serio driver structure.
+ */
+
+static struct serio_device_id hampshire_serio_ids[] = {
+ {
+ .type = SERIO_RS232,
+ .proto = SERIO_HAMPSHIRE,
+ .id = SERIO_ANY,
+ .extra = SERIO_ANY,
+ },
+ { 0 }
+};
+
+MODULE_DEVICE_TABLE(serio, hampshire_serio_ids);
+
+static struct serio_driver hampshire_drv = {
+ .driver = {
+ .name = "hampshire",
+ },
+ .description = DRIVER_DESC,
+ .id_table = hampshire_serio_ids,
+ .interrupt = hampshire_interrupt,
+ .connect = hampshire_connect,
+ .disconnect = hampshire_disconnect,
+};
+
+/*
+ * The functions for inserting/removing us as a module.
+ */
+
+static int __init hampshire_init(void)
+{
+ return serio_register_driver(&hampshire_drv);
+}
+
+static void __exit hampshire_exit(void)
+{
+ serio_unregister_driver(&hampshire_drv);
+}
+
+module_init(hampshire_init);
+module_exit(hampshire_exit);
diff --git a/drivers/input/touchscreen/hp680_ts_input.c b/drivers/input/touchscreen/hp680_ts_input.c
new file mode 100644
index 0000000..639a604
--- /dev/null
+++ b/drivers/input/touchscreen/hp680_ts_input.c
@@ -0,0 +1,127 @@
+#include <linux/input.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <asm/io.h>
+#include <asm/delay.h>
+#include <asm/adc.h>
+#include <mach/hp6xx.h>
+
+#define MODNAME "hp680_ts_input"
+
+#define HP680_TS_ABS_X_MIN 40
+#define HP680_TS_ABS_X_MAX 950
+#define HP680_TS_ABS_Y_MIN 80
+#define HP680_TS_ABS_Y_MAX 910
+
+#define PHDR 0xa400012e
+#define SCPDR 0xa4000136
+
+static void do_softint(struct work_struct *work);
+
+static struct input_dev *hp680_ts_dev;
+static DECLARE_DELAYED_WORK(work, do_softint);
+
+static void do_softint(struct work_struct *work)
+{
+ int absx = 0, absy = 0;
+ u8 scpdr;
+ int touched = 0;
+
+ if (__raw_readb(PHDR) & PHDR_TS_PEN_DOWN) {
+ scpdr = __raw_readb(SCPDR);
+ scpdr |= SCPDR_TS_SCAN_ENABLE;
+ scpdr &= ~SCPDR_TS_SCAN_Y;
+ __raw_writeb(scpdr, SCPDR);
+ udelay(30);
+
+ absy = adc_single(ADC_CHANNEL_TS_Y);
+
+ scpdr = __raw_readb(SCPDR);
+ scpdr |= SCPDR_TS_SCAN_Y;
+ scpdr &= ~SCPDR_TS_SCAN_X;
+ __raw_writeb(scpdr, SCPDR);
+ udelay(30);
+
+ absx = adc_single(ADC_CHANNEL_TS_X);
+
+ scpdr = __raw_readb(SCPDR);
+ scpdr |= SCPDR_TS_SCAN_X;
+ scpdr &= ~SCPDR_TS_SCAN_ENABLE;
+ __raw_writeb(scpdr, SCPDR);
+ udelay(100);
+ touched = __raw_readb(PHDR) & PHDR_TS_PEN_DOWN;
+ }
+
+ if (touched) {
+ input_report_key(hp680_ts_dev, BTN_TOUCH, 1);
+ input_report_abs(hp680_ts_dev, ABS_X, absx);
+ input_report_abs(hp680_ts_dev, ABS_Y, absy);
+ } else {
+ input_report_key(hp680_ts_dev, BTN_TOUCH, 0);
+ }
+
+ input_sync(hp680_ts_dev);
+ enable_irq(HP680_TS_IRQ);
+}
+
+static irqreturn_t hp680_ts_interrupt(int irq, void *dev)
+{
+ disable_irq_nosync(irq);
+ schedule_delayed_work(&work, HZ / 20);
+
+ return IRQ_HANDLED;
+}
+
+static int __init hp680_ts_init(void)
+{
+ int err;
+
+ hp680_ts_dev = input_allocate_device();
+ if (!hp680_ts_dev)
+ return -ENOMEM;
+
+ hp680_ts_dev->evbit[0] = BIT_MASK(EV_ABS) | BIT_MASK(EV_KEY);
+ hp680_ts_dev->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH);
+
+ input_set_abs_params(hp680_ts_dev, ABS_X,
+ HP680_TS_ABS_X_MIN, HP680_TS_ABS_X_MAX, 0, 0);
+ input_set_abs_params(hp680_ts_dev, ABS_Y,
+ HP680_TS_ABS_Y_MIN, HP680_TS_ABS_Y_MAX, 0, 0);
+
+ hp680_ts_dev->name = "HP Jornada touchscreen";
+ hp680_ts_dev->phys = "hp680_ts/input0";
+
+ if (request_irq(HP680_TS_IRQ, hp680_ts_interrupt,
+ 0, MODNAME, 0) < 0) {
+ printk(KERN_ERR "hp680_touchscreen.c: Can't allocate irq %d\n",
+ HP680_TS_IRQ);
+ err = -EBUSY;
+ goto fail1;
+ }
+
+ err = input_register_device(hp680_ts_dev);
+ if (err)
+ goto fail2;
+
+ return 0;
+
+ fail2: free_irq(HP680_TS_IRQ, NULL);
+ cancel_delayed_work_sync(&work);
+ fail1: input_free_device(hp680_ts_dev);
+ return err;
+}
+
+static void __exit hp680_ts_exit(void)
+{
+ free_irq(HP680_TS_IRQ, NULL);
+ cancel_delayed_work_sync(&work);
+ input_unregister_device(hp680_ts_dev);
+}
+
+module_init(hp680_ts_init);
+module_exit(hp680_ts_exit);
+
+MODULE_AUTHOR("Andriy Skulysh, askulysh@image.kiev.ua");
+MODULE_DESCRIPTION("HP Jornada 680 touchscreen driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/input/touchscreen/htcpen.c b/drivers/input/touchscreen/htcpen.c
new file mode 100644
index 0000000..62811de
--- /dev/null
+++ b/drivers/input/touchscreen/htcpen.c
@@ -0,0 +1,255 @@
+/*
+ * HTC Shift touchscreen driver
+ *
+ * Copyright (C) 2008 Pau Oliva Fora <pof@eslack.org>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ */
+
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/input.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/init.h>
+#include <linux/irq.h>
+#include <linux/isa.h>
+#include <linux/ioport.h>
+#include <linux/dmi.h>
+
+MODULE_AUTHOR("Pau Oliva Fora <pau@eslack.org>");
+MODULE_DESCRIPTION("HTC Shift touchscreen driver");
+MODULE_LICENSE("GPL");
+
+#define HTCPEN_PORT_IRQ_CLEAR 0x068
+#define HTCPEN_PORT_INIT 0x06c
+#define HTCPEN_PORT_INDEX 0x0250
+#define HTCPEN_PORT_DATA 0x0251
+#define HTCPEN_IRQ 3
+
+#define DEVICE_ENABLE 0xa2
+#define DEVICE_DISABLE 0xa3
+
+#define X_INDEX 3
+#define Y_INDEX 5
+#define TOUCH_INDEX 0xb
+#define LSB_XY_INDEX 0xc
+#define X_AXIS_MAX 2040
+#define Y_AXIS_MAX 2040
+
+static int invert_x;
+module_param(invert_x, bool, 0644);
+MODULE_PARM_DESC(invert_x, "If set, X axis is inverted");
+static int invert_y;
+module_param(invert_y, bool, 0644);
+MODULE_PARM_DESC(invert_y, "If set, Y axis is inverted");
+
+static struct pnp_device_id pnp_ids[] = {
+ { .id = "PNP0cc0" },
+ { .id = "" }
+};
+MODULE_DEVICE_TABLE(pnp, pnp_ids);
+
+static irqreturn_t htcpen_interrupt(int irq, void *handle)
+{
+ struct input_dev *htcpen_dev = handle;
+ unsigned short x, y, xy;
+
+ /* 0 = press; 1 = release */
+ outb_p(TOUCH_INDEX, HTCPEN_PORT_INDEX);
+
+ if (inb_p(HTCPEN_PORT_DATA)) {
+ input_report_key(htcpen_dev, BTN_TOUCH, 0);
+ } else {
+ outb_p(X_INDEX, HTCPEN_PORT_INDEX);
+ x = inb_p(HTCPEN_PORT_DATA);
+
+ outb_p(Y_INDEX, HTCPEN_PORT_INDEX);
+ y = inb_p(HTCPEN_PORT_DATA);
+
+ outb_p(LSB_XY_INDEX, HTCPEN_PORT_INDEX);
+ xy = inb_p(HTCPEN_PORT_DATA);
+
+ /* get high resolution value of X and Y using LSB */
+ x = X_AXIS_MAX - ((x * 8) + ((xy >> 4) & 0xf));
+ y = (y * 8) + (xy & 0xf);
+ if (invert_x)
+ x = X_AXIS_MAX - x;
+ if (invert_y)
+ y = Y_AXIS_MAX - y;
+
+ if (x != X_AXIS_MAX && x != 0) {
+ input_report_key(htcpen_dev, BTN_TOUCH, 1);
+ input_report_abs(htcpen_dev, ABS_X, x);
+ input_report_abs(htcpen_dev, ABS_Y, y);
+ }
+ }
+
+ input_sync(htcpen_dev);
+
+ inb_p(HTCPEN_PORT_IRQ_CLEAR);
+
+ return IRQ_HANDLED;
+}
+
+static int htcpen_open(struct input_dev *dev)
+{
+ outb_p(DEVICE_ENABLE, HTCPEN_PORT_INIT);
+
+ return 0;
+}
+
+static void htcpen_close(struct input_dev *dev)
+{
+ outb_p(DEVICE_DISABLE, HTCPEN_PORT_INIT);
+ synchronize_irq(HTCPEN_IRQ);
+}
+
+static int __devinit htcpen_isa_probe(struct device *dev, unsigned int id)
+{
+ struct input_dev *htcpen_dev;
+ int err = -EBUSY;
+
+ if (!request_region(HTCPEN_PORT_IRQ_CLEAR, 1, "htcpen")) {
+ printk(KERN_ERR "htcpen: unable to get IO region 0x%x\n",
+ HTCPEN_PORT_IRQ_CLEAR);
+ goto request_region1_failed;
+ }
+
+ if (!request_region(HTCPEN_PORT_INIT, 1, "htcpen")) {
+ printk(KERN_ERR "htcpen: unable to get IO region 0x%x\n",
+ HTCPEN_PORT_INIT);
+ goto request_region2_failed;
+ }
+
+ if (!request_region(HTCPEN_PORT_INDEX, 2, "htcpen")) {
+ printk(KERN_ERR "htcpen: unable to get IO region 0x%x\n",
+ HTCPEN_PORT_INDEX);
+ goto request_region3_failed;
+ }
+
+ htcpen_dev = input_allocate_device();
+ if (!htcpen_dev) {
+ printk(KERN_ERR "htcpen: can't allocate device\n");
+ err = -ENOMEM;
+ goto input_alloc_failed;
+ }
+
+ htcpen_dev->name = "HTC Shift EC TouchScreen";
+ htcpen_dev->id.bustype = BUS_ISA;
+
+ htcpen_dev->evbit[0] = BIT_MASK(EV_ABS) | BIT_MASK(EV_KEY);
+ htcpen_dev->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH);
+ input_set_abs_params(htcpen_dev, ABS_X, 0, X_AXIS_MAX, 0, 0);
+ input_set_abs_params(htcpen_dev, ABS_Y, 0, Y_AXIS_MAX, 0, 0);
+
+ htcpen_dev->open = htcpen_open;
+ htcpen_dev->close = htcpen_close;
+
+ err = request_irq(HTCPEN_IRQ, htcpen_interrupt, 0, "htcpen",
+ htcpen_dev);
+ if (err) {
+ printk(KERN_ERR "htcpen: irq busy\n");
+ goto request_irq_failed;
+ }
+
+ inb_p(HTCPEN_PORT_IRQ_CLEAR);
+
+ err = input_register_device(htcpen_dev);
+ if (err)
+ goto input_register_failed;
+
+ dev_set_drvdata(dev, htcpen_dev);
+
+ return 0;
+
+ input_register_failed:
+ free_irq(HTCPEN_IRQ, htcpen_dev);
+ request_irq_failed:
+ input_free_device(htcpen_dev);
+ input_alloc_failed:
+ release_region(HTCPEN_PORT_INDEX, 2);
+ request_region3_failed:
+ release_region(HTCPEN_PORT_INIT, 1);
+ request_region2_failed:
+ release_region(HTCPEN_PORT_IRQ_CLEAR, 1);
+ request_region1_failed:
+ return err;
+}
+
+static int __devexit htcpen_isa_remove(struct device *dev, unsigned int id)
+{
+ struct input_dev *htcpen_dev = dev_get_drvdata(dev);
+
+ input_unregister_device(htcpen_dev);
+
+ free_irq(HTCPEN_IRQ, htcpen_dev);
+
+ release_region(HTCPEN_PORT_INDEX, 2);
+ release_region(HTCPEN_PORT_INIT, 1);
+ release_region(HTCPEN_PORT_IRQ_CLEAR, 1);
+
+ dev_set_drvdata(dev, NULL);
+
+ return 0;
+}
+
+#ifdef CONFIG_PM
+static int htcpen_isa_suspend(struct device *dev, unsigned int n,
+ pm_message_t state)
+{
+ outb_p(DEVICE_DISABLE, HTCPEN_PORT_INIT);
+
+ return 0;
+}
+
+static int htcpen_isa_resume(struct device *dev, unsigned int n)
+{
+ outb_p(DEVICE_ENABLE, HTCPEN_PORT_INIT);
+
+ return 0;
+}
+#endif
+
+static struct isa_driver htcpen_isa_driver = {
+ .probe = htcpen_isa_probe,
+ .remove = __devexit_p(htcpen_isa_remove),
+#ifdef CONFIG_PM
+ .suspend = htcpen_isa_suspend,
+ .resume = htcpen_isa_resume,
+#endif
+ .driver = {
+ .owner = THIS_MODULE,
+ .name = "htcpen",
+ }
+};
+
+static struct dmi_system_id __initdata htcshift_dmi_table[] = {
+ {
+ .ident = "Shift",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "High Tech Computer Corp"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Shift"),
+ },
+ },
+ { }
+};
+
+static int __init htcpen_isa_init(void)
+{
+ if (!dmi_check_system(htcshift_dmi_table))
+ return -ENODEV;
+
+ return isa_register_driver(&htcpen_isa_driver, 1);
+}
+
+static void __exit htcpen_isa_exit(void)
+{
+ isa_unregister_driver(&htcpen_isa_driver);
+}
+
+module_init(htcpen_isa_init);
+module_exit(htcpen_isa_exit);
diff --git a/drivers/input/touchscreen/inexio.c b/drivers/input/touchscreen/inexio.c
new file mode 100644
index 0000000..192ade0
--- /dev/null
+++ b/drivers/input/touchscreen/inexio.c
@@ -0,0 +1,207 @@
+/*
+ * iNexio serial touchscreen driver
+ *
+ * Copyright (c) 2008 Richard Lemon
+ * Based on the mtouch driver (c) Vojtech Pavlik and Dan Streetman
+ *
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ */
+
+/*
+ * 2008/06/19 Richard Lemon <richard@codelemon.com>
+ * Copied mtouch.c and edited for iNexio protocol
+ */
+
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/input.h>
+#include <linux/serio.h>
+#include <linux/init.h>
+
+#define DRIVER_DESC "iNexio serial touchscreen driver"
+
+MODULE_AUTHOR("Richard Lemon <richard@codelemon.com>");
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+/*
+ * Definitions & global arrays.
+ */
+
+#define INEXIO_FORMAT_TOUCH_BIT 0x01
+#define INEXIO_FORMAT_LENGTH 5
+#define INEXIO_RESPONSE_BEGIN_BYTE 0x80
+
+/* todo: check specs for max length of all responses */
+#define INEXIO_MAX_LENGTH 16
+
+#define INEXIO_MIN_XC 0
+#define INEXIO_MAX_XC 0x3fff
+#define INEXIO_MIN_YC 0
+#define INEXIO_MAX_YC 0x3fff
+
+#define INEXIO_GET_XC(data) (((data[1])<<7) | data[2])
+#define INEXIO_GET_YC(data) (((data[3])<<7) | data[4])
+#define INEXIO_GET_TOUCHED(data) (INEXIO_FORMAT_TOUCH_BIT & data[0])
+
+/*
+ * Per-touchscreen data.
+ */
+
+struct inexio {
+ struct input_dev *dev;
+ struct serio *serio;
+ int idx;
+ unsigned char data[INEXIO_MAX_LENGTH];
+ char phys[32];
+};
+
+static void inexio_process_data(struct inexio *pinexio)
+{
+ struct input_dev *dev = pinexio->dev;
+
+ if (INEXIO_FORMAT_LENGTH == ++pinexio->idx) {
+ input_report_abs(dev, ABS_X, INEXIO_GET_XC(pinexio->data));
+ input_report_abs(dev, ABS_Y, INEXIO_GET_YC(pinexio->data));
+ input_report_key(dev, BTN_TOUCH, INEXIO_GET_TOUCHED(pinexio->data));
+ input_sync(dev);
+
+ pinexio->idx = 0;
+ }
+}
+
+static irqreturn_t inexio_interrupt(struct serio *serio,
+ unsigned char data, unsigned int flags)
+{
+ struct inexio* pinexio = serio_get_drvdata(serio);
+
+ pinexio->data[pinexio->idx] = data;
+
+ if (INEXIO_RESPONSE_BEGIN_BYTE&pinexio->data[0])
+ inexio_process_data(pinexio);
+ else
+ printk(KERN_DEBUG "inexio.c: unknown/unsynchronized data from device, byte %x\n",pinexio->data[0]);
+
+ return IRQ_HANDLED;
+}
+
+/*
+ * inexio_disconnect() is the opposite of inexio_connect()
+ */
+
+static void inexio_disconnect(struct serio *serio)
+{
+ struct inexio* pinexio = serio_get_drvdata(serio);
+
+ input_get_device(pinexio->dev);
+ input_unregister_device(pinexio->dev);
+ serio_close(serio);
+ serio_set_drvdata(serio, NULL);
+ input_put_device(pinexio->dev);
+ kfree(pinexio);
+}
+
+/*
+ * inexio_connect() is the routine that is called when someone adds a
+ * new serio device that supports iNexio protocol and registers it as
+ * an input device. This is usually accomplished using inputattach.
+ */
+
+static int inexio_connect(struct serio *serio, struct serio_driver *drv)
+{
+ struct inexio *pinexio;
+ struct input_dev *input_dev;
+ int err;
+
+ pinexio = kzalloc(sizeof(struct inexio), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!pinexio || !input_dev) {
+ err = -ENOMEM;
+ goto fail1;
+ }
+
+ pinexio->serio = serio;
+ pinexio->dev = input_dev;
+ snprintf(pinexio->phys, sizeof(pinexio->phys), "%s/input0", serio->phys);
+
+ input_dev->name = "iNexio Serial TouchScreen";
+ input_dev->phys = pinexio->phys;
+ input_dev->id.bustype = BUS_RS232;
+ input_dev->id.vendor = SERIO_INEXIO;
+ input_dev->id.product = 0;
+ input_dev->id.version = 0x0001;
+ input_dev->dev.parent = &serio->dev;
+ input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
+ input_dev->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH);
+ input_set_abs_params(pinexio->dev, ABS_X, INEXIO_MIN_XC, INEXIO_MAX_XC, 0, 0);
+ input_set_abs_params(pinexio->dev, ABS_Y, INEXIO_MIN_YC, INEXIO_MAX_YC, 0, 0);
+
+ serio_set_drvdata(serio, pinexio);
+
+ err = serio_open(serio, drv);
+ if (err)
+ goto fail2;
+
+ err = input_register_device(pinexio->dev);
+ if (err)
+ goto fail3;
+
+ return 0;
+
+ fail3: serio_close(serio);
+ fail2: serio_set_drvdata(serio, NULL);
+ fail1: input_free_device(input_dev);
+ kfree(pinexio);
+ return err;
+}
+
+/*
+ * The serio driver structure.
+ */
+
+static struct serio_device_id inexio_serio_ids[] = {
+ {
+ .type = SERIO_RS232,
+ .proto = SERIO_INEXIO,
+ .id = SERIO_ANY,
+ .extra = SERIO_ANY,
+ },
+ { 0 }
+};
+
+MODULE_DEVICE_TABLE(serio, inexio_serio_ids);
+
+static struct serio_driver inexio_drv = {
+ .driver = {
+ .name = "inexio",
+ },
+ .description = DRIVER_DESC,
+ .id_table = inexio_serio_ids,
+ .interrupt = inexio_interrupt,
+ .connect = inexio_connect,
+ .disconnect = inexio_disconnect,
+};
+
+/*
+ * The functions for inserting/removing us as a module.
+ */
+
+static int __init inexio_init(void)
+{
+ return serio_register_driver(&inexio_drv);
+}
+
+static void __exit inexio_exit(void)
+{
+ serio_unregister_driver(&inexio_drv);
+}
+
+module_init(inexio_init);
+module_exit(inexio_exit);
diff --git a/drivers/input/touchscreen/intel-mid-touch.c b/drivers/input/touchscreen/intel-mid-touch.c
new file mode 100644
index 0000000..3276952
--- /dev/null
+++ b/drivers/input/touchscreen/intel-mid-touch.c
@@ -0,0 +1,682 @@
+/*
+ * Intel MID Resistive Touch Screen Driver
+ *
+ * Copyright (C) 2008 Intel Corp
+ *
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ *
+ * Questions/Comments/Bug fixes to Sreedhara (sreedhara.ds@intel.com)
+ * Ramesh Agarwal (ramesh.agarwal@intel.com)
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ *
+ * TODO:
+ * review conversion of r/m/w sequences
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/input.h>
+#include <linux/interrupt.h>
+#include <linux/err.h>
+#include <linux/param.h>
+#include <linux/slab.h>
+#include <linux/platform_device.h>
+#include <linux/irq.h>
+#include <linux/delay.h>
+#include <asm/intel_scu_ipc.h>
+
+/* PMIC Interrupt registers */
+#define PMIC_REG_ID1 0x00 /* PMIC ID1 register */
+
+/* PMIC Interrupt registers */
+#define PMIC_REG_INT 0x04 /* PMIC interrupt register */
+#define PMIC_REG_MINT 0x05 /* PMIC interrupt mask register */
+
+/* ADC Interrupt registers */
+#define PMIC_REG_ADCINT 0x5F /* ADC interrupt register */
+#define PMIC_REG_MADCINT 0x60 /* ADC interrupt mask register */
+
+/* ADC Control registers */
+#define PMIC_REG_ADCCNTL1 0x61 /* ADC control register */
+
+/* ADC Channel Selection registers */
+#define PMICADDR0 0xA4
+#define END_OF_CHANNEL 0x1F
+
+/* ADC Result register */
+#define PMIC_REG_ADCSNS0H 0x64
+
+/* ADC channels for touch screen */
+#define MRST_TS_CHAN10 0xA /* Touch screen X+ connection */
+#define MRST_TS_CHAN11 0xB /* Touch screen X- connection */
+#define MRST_TS_CHAN12 0xC /* Touch screen Y+ connection */
+#define MRST_TS_CHAN13 0xD /* Touch screen Y- connection */
+
+/* Touch screen channel BIAS constants */
+#define MRST_XBIAS 0x20
+#define MRST_YBIAS 0x40
+#define MRST_ZBIAS 0x80
+
+/* Touch screen coordinates */
+#define MRST_X_MIN 10
+#define MRST_X_MAX 1024
+#define MRST_X_FUZZ 5
+#define MRST_Y_MIN 10
+#define MRST_Y_MAX 1024
+#define MRST_Y_FUZZ 5
+#define MRST_PRESSURE_MIN 0
+#define MRST_PRESSURE_NOMINAL 50
+#define MRST_PRESSURE_MAX 100
+
+#define WAIT_ADC_COMPLETION 10 /* msec */
+
+/* PMIC ADC round robin delays */
+#define ADC_LOOP_DELAY0 0x0 /* Continuous loop */
+#define ADC_LOOP_DELAY1 0x1 /* 4.5 ms approximate */
+
+/* PMIC Vendor Identifiers */
+#define PMIC_VENDOR_FS 0 /* PMIC vendor FreeScale */
+#define PMIC_VENDOR_MAXIM 1 /* PMIC vendor MAXIM */
+#define PMIC_VENDOR_NEC 2 /* PMIC vendor NEC */
+#define MRSTOUCH_MAX_CHANNELS 32 /* Maximum ADC channels */
+
+/* Touch screen device structure */
+struct mrstouch_dev {
+ struct device *dev; /* device associated with touch screen */
+ struct input_dev *input;
+ char phys[32];
+ u16 asr; /* Address selection register */
+ int irq;
+ unsigned int vendor; /* PMIC vendor */
+ unsigned int rev; /* PMIC revision */
+
+ int (*read_prepare)(struct mrstouch_dev *tsdev);
+ int (*read)(struct mrstouch_dev *tsdev, u16 *x, u16 *y, u16 *z);
+ int (*read_finish)(struct mrstouch_dev *tsdev);
+};
+
+
+/*************************** NEC and Maxim Interface ************************/
+
+static int mrstouch_nec_adc_read_prepare(struct mrstouch_dev *tsdev)
+{
+ return intel_scu_ipc_update_register(PMIC_REG_MADCINT, 0, 0x20);
+}
+
+/*
+ * Enables PENDET interrupt.
+ */
+static int mrstouch_nec_adc_read_finish(struct mrstouch_dev *tsdev)
+{
+ int err;
+
+ err = intel_scu_ipc_update_register(PMIC_REG_MADCINT, 0x20, 0x20);
+ if (!err)
+ err = intel_scu_ipc_update_register(PMIC_REG_ADCCNTL1, 0, 0x05);
+
+ return err;
+}
+
+/*
+ * Reads PMIC ADC touch screen result
+ * Reads ADC storage registers for higher 7 and lower 3 bits and
+ * converts the two readings into a single value and turns off gain bit
+ */
+static int mrstouch_ts_chan_read(u16 offset, u16 chan, u16 *vp, u16 *vm)
+{
+ int err;
+ u16 result;
+ u32 res;
+
+ result = PMIC_REG_ADCSNS0H + offset;
+
+ if (chan == MRST_TS_CHAN12)
+ result += 4;
+
+ err = intel_scu_ipc_ioread32(result, &res);
+ if (err)
+ return err;
+
+ /* Mash the bits up */
+
+ *vp = (res & 0xFF) << 3; /* Highest 7 bits */
+ *vp |= (res >> 8) & 0x07; /* Lower 3 bits */
+ *vp &= 0x3FF;
+
+ res >>= 16;
+
+ *vm = (res & 0xFF) << 3; /* Highest 7 bits */
+ *vm |= (res >> 8) & 0x07; /* Lower 3 bits */
+ *vm &= 0x3FF;
+
+ return 0;
+}
+
+/*
+ * Enables X, Y and Z bias values
+ * Enables YPYM for X channels and XPXM for Y channels
+ */
+static int mrstouch_ts_bias_set(uint offset, uint bias)
+{
+ int count;
+ u16 chan, start;
+ u16 reg[4];
+ u8 data[4];
+
+ chan = PMICADDR0 + offset;
+ start = MRST_TS_CHAN10;
+
+ for (count = 0; count <= 3; count++) {
+ reg[count] = chan++;
+ data[count] = bias | (start + count);
+ }
+
+ return intel_scu_ipc_writev(reg, data, 4);
+}
+
+/* To read touch screen channel values */
+static int mrstouch_nec_adc_read(struct mrstouch_dev *tsdev,
+ u16 *x, u16 *y, u16 *z)
+{
+ int err;
+ u16 xm, ym, zm;
+
+ /* configure Y bias for X channels */
+ err = mrstouch_ts_bias_set(tsdev->asr, MRST_YBIAS);
+ if (err)
+ goto ipc_error;
+
+ msleep(WAIT_ADC_COMPLETION);
+
+ /* read x+ and x- channels */
+ err = mrstouch_ts_chan_read(tsdev->asr, MRST_TS_CHAN10, x, &xm);
+ if (err)
+ goto ipc_error;
+
+ /* configure x bias for y channels */
+ err = mrstouch_ts_bias_set(tsdev->asr, MRST_XBIAS);
+ if (err)
+ goto ipc_error;
+
+ msleep(WAIT_ADC_COMPLETION);
+
+ /* read y+ and y- channels */
+ err = mrstouch_ts_chan_read(tsdev->asr, MRST_TS_CHAN12, y, &ym);
+ if (err)
+ goto ipc_error;
+
+ /* configure z bias for x and y channels */
+ err = mrstouch_ts_bias_set(tsdev->asr, MRST_ZBIAS);
+ if (err)
+ goto ipc_error;
+
+ msleep(WAIT_ADC_COMPLETION);
+
+ /* read z+ and z- channels */
+ err = mrstouch_ts_chan_read(tsdev->asr, MRST_TS_CHAN10, z, &zm);
+ if (err)
+ goto ipc_error;
+
+ return 0;
+
+ipc_error:
+ dev_err(tsdev->dev, "ipc error during adc read\n");
+ return err;
+}
+
+
+/*************************** Freescale Interface ************************/
+
+static int mrstouch_fs_adc_read_prepare(struct mrstouch_dev *tsdev)
+{
+ int err, count;
+ u16 chan;
+ u16 reg[5];
+ u8 data[5];
+
+ /* Stop the ADC */
+ err = intel_scu_ipc_update_register(PMIC_REG_MADCINT, 0x00, 0x02);
+ if (err)
+ goto ipc_error;
+
+ chan = PMICADDR0 + tsdev->asr;
+
+ /* Set X BIAS */
+ for (count = 0; count <= 3; count++) {
+ reg[count] = chan++;
+ data[count] = 0x2A;
+ }
+ reg[count] = chan++; /* Dummy */
+ data[count] = 0;
+
+ err = intel_scu_ipc_writev(reg, data, 5);
+ if (err)
+ goto ipc_error;
+
+ msleep(WAIT_ADC_COMPLETION);
+
+ /* Set Y BIAS */
+ for (count = 0; count <= 3; count++) {
+ reg[count] = chan++;
+ data[count] = 0x4A;
+ }
+ reg[count] = chan++; /* Dummy */
+ data[count] = 0;
+
+ err = intel_scu_ipc_writev(reg, data, 5);
+ if (err)
+ goto ipc_error;
+
+ msleep(WAIT_ADC_COMPLETION);
+
+ /* Set Z BIAS */
+ err = intel_scu_ipc_iowrite32(chan + 2, 0x8A8A8A8A);
+ if (err)
+ goto ipc_error;
+
+ msleep(WAIT_ADC_COMPLETION);
+
+ return 0;
+
+ipc_error:
+ dev_err(tsdev->dev, "ipc error during %s\n", __func__);
+ return err;
+}
+
+static int mrstouch_fs_adc_read(struct mrstouch_dev *tsdev,
+ u16 *x, u16 *y, u16 *z)
+{
+ int err;
+ u16 result;
+ u16 reg[4];
+ u8 data[4];
+
+ result = PMIC_REG_ADCSNS0H + tsdev->asr;
+
+ reg[0] = result + 4;
+ reg[1] = result + 5;
+ reg[2] = result + 16;
+ reg[3] = result + 17;
+
+ err = intel_scu_ipc_readv(reg, data, 4);
+ if (err)
+ goto ipc_error;
+
+ *x = data[0] << 3; /* Higher 7 bits */
+ *x |= data[1] & 0x7; /* Lower 3 bits */
+ *x &= 0x3FF;
+
+ *y = data[2] << 3; /* Higher 7 bits */
+ *y |= data[3] & 0x7; /* Lower 3 bits */
+ *y &= 0x3FF;
+
+ /* Read Z value */
+ reg[0] = result + 28;
+ reg[1] = result + 29;
+
+ err = intel_scu_ipc_readv(reg, data, 4);
+ if (err)
+ goto ipc_error;
+
+ *z = data[0] << 3; /* Higher 7 bits */
+ *z |= data[1] & 0x7; /* Lower 3 bits */
+ *z &= 0x3FF;
+
+ return 0;
+
+ipc_error:
+ dev_err(tsdev->dev, "ipc error during %s\n", __func__);
+ return err;
+}
+
+static int mrstouch_fs_adc_read_finish(struct mrstouch_dev *tsdev)
+{
+ int err, count;
+ u16 chan;
+ u16 reg[5];
+ u8 data[5];
+
+ /* Clear all TS channels */
+ chan = PMICADDR0 + tsdev->asr;
+ for (count = 0; count <= 4; count++) {
+ reg[count] = chan++;
+ data[count] = 0;
+ }
+ err = intel_scu_ipc_writev(reg, data, 5);
+ if (err)
+ goto ipc_error;
+
+ for (count = 0; count <= 4; count++) {
+ reg[count] = chan++;
+ data[count] = 0;
+ }
+ err = intel_scu_ipc_writev(reg, data, 5);
+ if (err)
+ goto ipc_error;
+
+ err = intel_scu_ipc_iowrite32(chan + 2, 0x00000000);
+ if (err)
+ goto ipc_error;
+
+ /* Start ADC */
+ err = intel_scu_ipc_update_register(PMIC_REG_MADCINT, 0x02, 0x02);
+ if (err)
+ goto ipc_error;
+
+ return 0;
+
+ipc_error:
+ dev_err(tsdev->dev, "ipc error during %s\n", __func__);
+ return err;
+}
+
+static void mrstouch_report_event(struct input_dev *input,
+ unsigned int x, unsigned int y, unsigned int z)
+{
+ if (z > MRST_PRESSURE_NOMINAL) {
+ /* Pen touched, report button touch and coordinates */
+ input_report_key(input, BTN_TOUCH, 1);
+ input_report_abs(input, ABS_X, x);
+ input_report_abs(input, ABS_Y, y);
+ } else {
+ input_report_key(input, BTN_TOUCH, 0);
+ }
+
+ input_report_abs(input, ABS_PRESSURE, z);
+ input_sync(input);
+}
+
+/* PENDET interrupt handler */
+static irqreturn_t mrstouch_pendet_irq(int irq, void *dev_id)
+{
+ struct mrstouch_dev *tsdev = dev_id;
+ u16 x, y, z;
+
+ /*
+ * Should we lower thread priority? Probably not, since we are
+ * not spinning but sleeping...
+ */
+
+ if (tsdev->read_prepare(tsdev))
+ goto out;
+
+ do {
+ if (tsdev->read(tsdev, &x, &y, &z))
+ break;
+
+ mrstouch_report_event(tsdev->input, x, y, z);
+ } while (z > MRST_PRESSURE_NOMINAL);
+
+ tsdev->read_finish(tsdev);
+
+out:
+ return IRQ_HANDLED;
+}
+
+/* Utility to read PMIC ID */
+static int __devinit mrstouch_read_pmic_id(uint *vendor, uint *rev)
+{
+ int err;
+ u8 r;
+
+ err = intel_scu_ipc_ioread8(PMIC_REG_ID1, &r);
+ if (err)
+ return err;
+
+ *vendor = r & 0x7;
+ *rev = (r >> 3) & 0x7;
+
+ return 0;
+}
+
+/*
+ * Parse ADC channels to find end of the channel configured by other ADC user
+ * NEC and MAXIM requires 4 channels and FreeScale needs 18 channels
+ */
+static int __devinit mrstouch_chan_parse(struct mrstouch_dev *tsdev)
+{
+ int found = 0;
+ int err, i;
+ u8 r8;
+
+ for (i = 0; i < MRSTOUCH_MAX_CHANNELS; i++) {
+ err = intel_scu_ipc_ioread8(PMICADDR0 + i, &r8);
+ if (err)
+ return err;
+
+ if (r8 == END_OF_CHANNEL) {
+ found = i;
+ break;
+ }
+ }
+
+ if (tsdev->vendor == PMIC_VENDOR_FS) {
+ if (found > MRSTOUCH_MAX_CHANNELS - 18)
+ return -ENOSPC;
+ } else {
+ if (found > MRSTOUCH_MAX_CHANNELS - 4)
+ return -ENOSPC;
+ }
+
+ return found;
+}
+
+
+/*
+ * Writes touch screen channels to ADC address selection registers
+ */
+static int __devinit mrstouch_ts_chan_set(uint offset)
+{
+ u16 chan;
+
+ int ret, count;
+
+ chan = PMICADDR0 + offset;
+ for (count = 0; count <= 3; count++) {
+ ret = intel_scu_ipc_iowrite8(chan++, MRST_TS_CHAN10 + count);
+ if (ret)
+ return ret;
+ }
+ return intel_scu_ipc_iowrite8(chan++, END_OF_CHANNEL);
+}
+
+/* Initialize ADC */
+static int __devinit mrstouch_adc_init(struct mrstouch_dev *tsdev)
+{
+ int err, start;
+ u8 ra, rm;
+
+ err = mrstouch_read_pmic_id(&tsdev->vendor, &tsdev->rev);
+ if (err) {
+ dev_err(tsdev->dev, "Unable to read PMIC id\n");
+ return err;
+ }
+
+ switch (tsdev->vendor) {
+ case PMIC_VENDOR_NEC:
+ case PMIC_VENDOR_MAXIM:
+ tsdev->read_prepare = mrstouch_nec_adc_read_prepare;
+ tsdev->read = mrstouch_nec_adc_read;
+ tsdev->read_finish = mrstouch_nec_adc_read_finish;
+ break;
+
+ case PMIC_VENDOR_FS:
+ tsdev->read_prepare = mrstouch_fs_adc_read_prepare;
+ tsdev->read = mrstouch_fs_adc_read;
+ tsdev->read_finish = mrstouch_fs_adc_read_finish;
+ break;
+
+ default:
+ dev_err(tsdev->dev,
+ "Unsupported touchscreen: %d\n", tsdev->vendor);
+ return -ENXIO;
+ }
+
+ start = mrstouch_chan_parse(tsdev);
+ if (start < 0) {
+ dev_err(tsdev->dev, "Unable to parse channels\n");
+ return start;
+ }
+
+ tsdev->asr = start;
+
+ /*
+ * ADC power on, start, enable PENDET and set loop delay
+ * ADC loop delay is set to 4.5 ms approximately
+ * Loop delay more than this results in jitter in adc readings
+ * Setting loop delay to 0 (continuous loop) in MAXIM stops PENDET
+ * interrupt generation sometimes.
+ */
+
+ if (tsdev->vendor == PMIC_VENDOR_FS) {
+ ra = 0xE0 | ADC_LOOP_DELAY0;
+ rm = 0x5;
+ } else {
+ /* NEC and MAXIm not consistent with loop delay 0 */
+ ra = 0xE0 | ADC_LOOP_DELAY1;
+ rm = 0x0;
+
+ /* configure touch screen channels */
+ err = mrstouch_ts_chan_set(tsdev->asr);
+ if (err)
+ return err;
+ }
+
+ err = intel_scu_ipc_update_register(PMIC_REG_ADCCNTL1, ra, 0xE7);
+ if (err)
+ return err;
+
+ err = intel_scu_ipc_update_register(PMIC_REG_MADCINT, rm, 0x03);
+ if (err)
+ return err;
+
+ return 0;
+}
+
+
+/* Probe function for touch screen driver */
+static int __devinit mrstouch_probe(struct platform_device *pdev)
+{
+ struct mrstouch_dev *tsdev;
+ struct input_dev *input;
+ int err;
+ int irq;
+
+ irq = platform_get_irq(pdev, 0);
+ if (irq < 0) {
+ dev_err(&pdev->dev, "no interrupt assigned\n");
+ return -EINVAL;
+ }
+
+ tsdev = kzalloc(sizeof(struct mrstouch_dev), GFP_KERNEL);
+ input = input_allocate_device();
+ if (!tsdev || !input) {
+ dev_err(&pdev->dev, "unable to allocate memory\n");
+ err = -ENOMEM;
+ goto err_free_mem;
+ }
+
+ tsdev->dev = &pdev->dev;
+ tsdev->input = input;
+ tsdev->irq = irq;
+
+ snprintf(tsdev->phys, sizeof(tsdev->phys),
+ "%s/input0", dev_name(tsdev->dev));
+
+ err = mrstouch_adc_init(tsdev);
+ if (err) {
+ dev_err(&pdev->dev, "ADC initialization failed\n");
+ goto err_free_mem;
+ }
+
+ input->name = "mrst_touchscreen";
+ input->phys = tsdev->phys;
+ input->dev.parent = tsdev->dev;
+
+ input->id.vendor = tsdev->vendor;
+ input->id.version = tsdev->rev;
+
+ input->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
+ input->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH);
+
+ input_set_abs_params(tsdev->input, ABS_X,
+ MRST_X_MIN, MRST_X_MAX, MRST_X_FUZZ, 0);
+ input_set_abs_params(tsdev->input, ABS_Y,
+ MRST_Y_MIN, MRST_Y_MAX, MRST_Y_FUZZ, 0);
+ input_set_abs_params(tsdev->input, ABS_PRESSURE,
+ MRST_PRESSURE_MIN, MRST_PRESSURE_MAX, 0, 0);
+
+ err = request_threaded_irq(tsdev->irq, NULL, mrstouch_pendet_irq,
+ 0, "mrstouch", tsdev);
+ if (err) {
+ dev_err(tsdev->dev, "unable to allocate irq\n");
+ goto err_free_mem;
+ }
+
+ err = input_register_device(tsdev->input);
+ if (err) {
+ dev_err(tsdev->dev, "unable to register input device\n");
+ goto err_free_irq;
+ }
+
+ platform_set_drvdata(pdev, tsdev);
+ return 0;
+
+err_free_irq:
+ free_irq(tsdev->irq, tsdev);
+err_free_mem:
+ input_free_device(input);
+ kfree(tsdev);
+ return err;
+}
+
+static int __devexit mrstouch_remove(struct platform_device *pdev)
+{
+ struct mrstouch_dev *tsdev = platform_get_drvdata(pdev);
+
+ free_irq(tsdev->irq, tsdev);
+ input_unregister_device(tsdev->input);
+ kfree(tsdev);
+
+ platform_set_drvdata(pdev, NULL);
+
+ return 0;
+}
+
+static struct platform_driver mrstouch_driver = {
+ .driver = {
+ .name = "pmic_touch",
+ .owner = THIS_MODULE,
+ },
+ .probe = mrstouch_probe,
+ .remove = __devexit_p(mrstouch_remove),
+};
+
+static int __init mrstouch_init(void)
+{
+ return platform_driver_register(&mrstouch_driver);
+}
+module_init(mrstouch_init);
+
+static void __exit mrstouch_exit(void)
+{
+ platform_driver_unregister(&mrstouch_driver);
+}
+module_exit(mrstouch_exit);
+
+MODULE_AUTHOR("Sreedhara Murthy. D.S, sreedhara.ds@intel.com");
+MODULE_DESCRIPTION("Intel Moorestown Resistive Touch Screen Driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/input/touchscreen/jornada720_ts.c b/drivers/input/touchscreen/jornada720_ts.c
new file mode 100644
index 0000000..50076c2
--- /dev/null
+++ b/drivers/input/touchscreen/jornada720_ts.c
@@ -0,0 +1,187 @@
+/*
+ * drivers/input/touchscreen/jornada720_ts.c
+ *
+ * Copyright (C) 2007 Kristoffer Ericson <Kristoffer.Ericson@gmail.com>
+ *
+ * Copyright (C) 2006 Filip Zyzniewski <filip.zyzniewski@tefnet.pl>
+ * based on HP Jornada 56x touchscreen driver by Alex Lange <chicken@handhelds.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * HP Jornada 710/720/729 Touchscreen Driver
+ */
+
+#include <linux/platform_device.h>
+#include <linux/init.h>
+#include <linux/input.h>
+#include <linux/interrupt.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+
+#include <mach/hardware.h>
+#include <mach/jornada720.h>
+
+MODULE_AUTHOR("Kristoffer Ericson <kristoffer.ericson@gmail.com>");
+MODULE_DESCRIPTION("HP Jornada 710/720/728 touchscreen driver");
+MODULE_LICENSE("GPL v2");
+
+struct jornada_ts {
+ struct input_dev *dev;
+ int x_data[4]; /* X sample values */
+ int y_data[4]; /* Y sample values */
+};
+
+static void jornada720_ts_collect_data(struct jornada_ts *jornada_ts)
+{
+
+ /* 3 low word X samples */
+ jornada_ts->x_data[0] = jornada_ssp_byte(TXDUMMY);
+ jornada_ts->x_data[1] = jornada_ssp_byte(TXDUMMY);
+ jornada_ts->x_data[2] = jornada_ssp_byte(TXDUMMY);
+
+ /* 3 low word Y samples */
+ jornada_ts->y_data[0] = jornada_ssp_byte(TXDUMMY);
+ jornada_ts->y_data[1] = jornada_ssp_byte(TXDUMMY);
+ jornada_ts->y_data[2] = jornada_ssp_byte(TXDUMMY);
+
+ /* combined x samples bits */
+ jornada_ts->x_data[3] = jornada_ssp_byte(TXDUMMY);
+
+ /* combined y samples bits */
+ jornada_ts->y_data[3] = jornada_ssp_byte(TXDUMMY);
+}
+
+static int jornada720_ts_average(int coords[4])
+{
+ int coord, high_bits = coords[3];
+
+ coord = coords[0] | ((high_bits & 0x03) << 8);
+ coord += coords[1] | ((high_bits & 0x0c) << 6);
+ coord += coords[2] | ((high_bits & 0x30) << 4);
+
+ return coord / 3;
+}
+
+static irqreturn_t jornada720_ts_interrupt(int irq, void *dev_id)
+{
+ struct platform_device *pdev = dev_id;
+ struct jornada_ts *jornada_ts = platform_get_drvdata(pdev);
+ struct input_dev *input = jornada_ts->dev;
+ int x, y;
+
+ /* If GPIO_GPIO9 is set to high then report pen up */
+ if (GPLR & GPIO_GPIO(9)) {
+ input_report_key(input, BTN_TOUCH, 0);
+ input_sync(input);
+ } else {
+ jornada_ssp_start();
+
+ /* proper reply to request is always TXDUMMY */
+ if (jornada_ssp_inout(GETTOUCHSAMPLES) == TXDUMMY) {
+ jornada720_ts_collect_data(jornada_ts);
+
+ x = jornada720_ts_average(jornada_ts->x_data);
+ y = jornada720_ts_average(jornada_ts->y_data);
+
+ input_report_key(input, BTN_TOUCH, 1);
+ input_report_abs(input, ABS_X, x);
+ input_report_abs(input, ABS_Y, y);
+ input_sync(input);
+ }
+
+ jornada_ssp_end();
+ }
+
+ return IRQ_HANDLED;
+}
+
+static int __devinit jornada720_ts_probe(struct platform_device *pdev)
+{
+ struct jornada_ts *jornada_ts;
+ struct input_dev *input_dev;
+ int error;
+
+ jornada_ts = kzalloc(sizeof(struct jornada_ts), GFP_KERNEL);
+ input_dev = input_allocate_device();
+
+ if (!jornada_ts || !input_dev) {
+ error = -ENOMEM;
+ goto fail1;
+ }
+
+ platform_set_drvdata(pdev, jornada_ts);
+
+ jornada_ts->dev = input_dev;
+
+ input_dev->name = "HP Jornada 7xx Touchscreen";
+ input_dev->phys = "jornadats/input0";
+ input_dev->id.bustype = BUS_HOST;
+ input_dev->dev.parent = &pdev->dev;
+
+ input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
+ input_dev->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH);
+ input_set_abs_params(input_dev, ABS_X, 270, 3900, 0, 0);
+ input_set_abs_params(input_dev, ABS_Y, 180, 3700, 0, 0);
+
+ error = request_irq(IRQ_GPIO9,
+ jornada720_ts_interrupt,
+ IRQF_TRIGGER_RISING,
+ "HP7XX Touchscreen driver", pdev);
+ if (error) {
+ printk(KERN_INFO "HP7XX TS : Unable to acquire irq!\n");
+ goto fail1;
+ }
+
+ error = input_register_device(jornada_ts->dev);
+ if (error)
+ goto fail2;
+
+ return 0;
+
+ fail2:
+ free_irq(IRQ_GPIO9, pdev);
+ fail1:
+ platform_set_drvdata(pdev, NULL);
+ input_free_device(input_dev);
+ kfree(jornada_ts);
+ return error;
+}
+
+static int __devexit jornada720_ts_remove(struct platform_device *pdev)
+{
+ struct jornada_ts *jornada_ts = platform_get_drvdata(pdev);
+
+ free_irq(IRQ_GPIO9, pdev);
+ platform_set_drvdata(pdev, NULL);
+ input_unregister_device(jornada_ts->dev);
+ kfree(jornada_ts);
+
+ return 0;
+}
+
+/* work with hotplug and coldplug */
+MODULE_ALIAS("platform:jornada_ts");
+
+static struct platform_driver jornada720_ts_driver = {
+ .probe = jornada720_ts_probe,
+ .remove = __devexit_p(jornada720_ts_remove),
+ .driver = {
+ .name = "jornada_ts",
+ .owner = THIS_MODULE,
+ },
+};
+
+static int __init jornada720_ts_init(void)
+{
+ return platform_driver_register(&jornada720_ts_driver);
+}
+
+static void __exit jornada720_ts_exit(void)
+{
+ platform_driver_unregister(&jornada720_ts_driver);
+}
+
+module_init(jornada720_ts_init);
+module_exit(jornada720_ts_exit);
diff --git a/drivers/input/touchscreen/lpc32xx_ts.c b/drivers/input/touchscreen/lpc32xx_ts.c
new file mode 100644
index 0000000..0a484ed
--- /dev/null
+++ b/drivers/input/touchscreen/lpc32xx_ts.c
@@ -0,0 +1,411 @@
+/*
+ * LPC32xx built-in touchscreen driver
+ *
+ * Copyright (C) 2010 NXP Semiconductors
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/platform_device.h>
+#include <linux/init.h>
+#include <linux/input.h>
+#include <linux/interrupt.h>
+#include <linux/module.h>
+#include <linux/clk.h>
+#include <linux/io.h>
+#include <linux/slab.h>
+
+/*
+ * Touchscreen controller register offsets
+ */
+#define LPC32XX_TSC_STAT 0x00
+#define LPC32XX_TSC_SEL 0x04
+#define LPC32XX_TSC_CON 0x08
+#define LPC32XX_TSC_FIFO 0x0C
+#define LPC32XX_TSC_DTR 0x10
+#define LPC32XX_TSC_RTR 0x14
+#define LPC32XX_TSC_UTR 0x18
+#define LPC32XX_TSC_TTR 0x1C
+#define LPC32XX_TSC_DXP 0x20
+#define LPC32XX_TSC_MIN_X 0x24
+#define LPC32XX_TSC_MAX_X 0x28
+#define LPC32XX_TSC_MIN_Y 0x2C
+#define LPC32XX_TSC_MAX_Y 0x30
+#define LPC32XX_TSC_AUX_UTR 0x34
+#define LPC32XX_TSC_AUX_MIN 0x38
+#define LPC32XX_TSC_AUX_MAX 0x3C
+
+#define LPC32XX_TSC_STAT_FIFO_OVRRN (1 << 8)
+#define LPC32XX_TSC_STAT_FIFO_EMPTY (1 << 7)
+
+#define LPC32XX_TSC_SEL_DEFVAL 0x0284
+
+#define LPC32XX_TSC_ADCCON_IRQ_TO_FIFO_4 (0x1 << 11)
+#define LPC32XX_TSC_ADCCON_X_SAMPLE_SIZE(s) ((10 - (s)) << 7)
+#define LPC32XX_TSC_ADCCON_Y_SAMPLE_SIZE(s) ((10 - (s)) << 4)
+#define LPC32XX_TSC_ADCCON_POWER_UP (1 << 2)
+#define LPC32XX_TSC_ADCCON_AUTO_EN (1 << 0)
+
+#define LPC32XX_TSC_FIFO_TS_P_LEVEL (1 << 31)
+#define LPC32XX_TSC_FIFO_NORMALIZE_X_VAL(x) (((x) & 0x03FF0000) >> 16)
+#define LPC32XX_TSC_FIFO_NORMALIZE_Y_VAL(y) ((y) & 0x000003FF)
+
+#define LPC32XX_TSC_ADCDAT_VALUE_MASK 0x000003FF
+
+#define LPC32XX_TSC_MIN_XY_VAL 0x0
+#define LPC32XX_TSC_MAX_XY_VAL 0x3FF
+
+#define MOD_NAME "ts-lpc32xx"
+
+#define tsc_readl(dev, reg) \
+ __raw_readl((dev)->tsc_base + (reg))
+#define tsc_writel(dev, reg, val) \
+ __raw_writel((val), (dev)->tsc_base + (reg))
+
+struct lpc32xx_tsc {
+ struct input_dev *dev;
+ void __iomem *tsc_base;
+ int irq;
+ struct clk *clk;
+};
+
+static void lpc32xx_fifo_clear(struct lpc32xx_tsc *tsc)
+{
+ while (!(tsc_readl(tsc, LPC32XX_TSC_STAT) &
+ LPC32XX_TSC_STAT_FIFO_EMPTY))
+ tsc_readl(tsc, LPC32XX_TSC_FIFO);
+}
+
+static irqreturn_t lpc32xx_ts_interrupt(int irq, void *dev_id)
+{
+ u32 tmp, rv[4], xs[4], ys[4];
+ int idx;
+ struct lpc32xx_tsc *tsc = dev_id;
+ struct input_dev *input = tsc->dev;
+
+ tmp = tsc_readl(tsc, LPC32XX_TSC_STAT);
+
+ if (tmp & LPC32XX_TSC_STAT_FIFO_OVRRN) {
+ /* FIFO overflow - throw away samples */
+ lpc32xx_fifo_clear(tsc);
+ return IRQ_HANDLED;
+ }
+
+ /*
+ * Gather and normalize 4 samples. Pen-up events may have less
+ * than 4 samples, but its ok to pop 4 and let the last sample
+ * pen status check drop the samples.
+ */
+ idx = 0;
+ while (idx < 4 &&
+ !(tsc_readl(tsc, LPC32XX_TSC_STAT) &
+ LPC32XX_TSC_STAT_FIFO_EMPTY)) {
+ tmp = tsc_readl(tsc, LPC32XX_TSC_FIFO);
+ xs[idx] = LPC32XX_TSC_ADCDAT_VALUE_MASK -
+ LPC32XX_TSC_FIFO_NORMALIZE_X_VAL(tmp);
+ ys[idx] = LPC32XX_TSC_ADCDAT_VALUE_MASK -
+ LPC32XX_TSC_FIFO_NORMALIZE_Y_VAL(tmp);
+ rv[idx] = tmp;
+ idx++;
+ }
+
+ /* Data is only valid if pen is still down in last sample */
+ if (!(rv[3] & LPC32XX_TSC_FIFO_TS_P_LEVEL) && idx == 4) {
+ /* Use average of 2nd and 3rd sample for position */
+ input_report_abs(input, ABS_X, (xs[1] + xs[2]) / 2);
+ input_report_abs(input, ABS_Y, (ys[1] + ys[2]) / 2);
+ input_report_key(input, BTN_TOUCH, 1);
+ } else {
+ input_report_key(input, BTN_TOUCH, 0);
+ }
+
+ input_sync(input);
+
+ return IRQ_HANDLED;
+}
+
+static void lpc32xx_stop_tsc(struct lpc32xx_tsc *tsc)
+{
+ /* Disable auto mode */
+ tsc_writel(tsc, LPC32XX_TSC_CON,
+ tsc_readl(tsc, LPC32XX_TSC_CON) &
+ ~LPC32XX_TSC_ADCCON_AUTO_EN);
+
+ clk_disable(tsc->clk);
+}
+
+static void lpc32xx_setup_tsc(struct lpc32xx_tsc *tsc)
+{
+ u32 tmp;
+
+ clk_enable(tsc->clk);
+
+ tmp = tsc_readl(tsc, LPC32XX_TSC_CON) & ~LPC32XX_TSC_ADCCON_POWER_UP;
+
+ /* Set the TSC FIFO depth to 4 samples @ 10-bits per sample (max) */
+ tmp = LPC32XX_TSC_ADCCON_IRQ_TO_FIFO_4 |
+ LPC32XX_TSC_ADCCON_X_SAMPLE_SIZE(10) |
+ LPC32XX_TSC_ADCCON_Y_SAMPLE_SIZE(10);
+ tsc_writel(tsc, LPC32XX_TSC_CON, tmp);
+
+ /* These values are all preset */
+ tsc_writel(tsc, LPC32XX_TSC_SEL, LPC32XX_TSC_SEL_DEFVAL);
+ tsc_writel(tsc, LPC32XX_TSC_MIN_X, LPC32XX_TSC_MIN_XY_VAL);
+ tsc_writel(tsc, LPC32XX_TSC_MAX_X, LPC32XX_TSC_MAX_XY_VAL);
+ tsc_writel(tsc, LPC32XX_TSC_MIN_Y, LPC32XX_TSC_MIN_XY_VAL);
+ tsc_writel(tsc, LPC32XX_TSC_MAX_Y, LPC32XX_TSC_MAX_XY_VAL);
+
+ /* Aux support is not used */
+ tsc_writel(tsc, LPC32XX_TSC_AUX_UTR, 0);
+ tsc_writel(tsc, LPC32XX_TSC_AUX_MIN, 0);
+ tsc_writel(tsc, LPC32XX_TSC_AUX_MAX, 0);
+
+ /*
+ * Set sample rate to about 240Hz per X/Y pair. A single measurement
+ * consists of 4 pairs which gives about a 60Hz sample rate based on
+ * a stable 32768Hz clock source. Values are in clocks.
+ * Rate is (32768 / (RTR + XCONV + RTR + YCONV + DXP + TTR + UTR) / 4
+ */
+ tsc_writel(tsc, LPC32XX_TSC_RTR, 0x2);
+ tsc_writel(tsc, LPC32XX_TSC_DTR, 0x2);
+ tsc_writel(tsc, LPC32XX_TSC_TTR, 0x10);
+ tsc_writel(tsc, LPC32XX_TSC_DXP, 0x4);
+ tsc_writel(tsc, LPC32XX_TSC_UTR, 88);
+
+ lpc32xx_fifo_clear(tsc);
+
+ /* Enable automatic ts event capture */
+ tsc_writel(tsc, LPC32XX_TSC_CON, tmp | LPC32XX_TSC_ADCCON_AUTO_EN);
+}
+
+static int lpc32xx_ts_open(struct input_dev *dev)
+{
+ struct lpc32xx_tsc *tsc = input_get_drvdata(dev);
+
+ lpc32xx_setup_tsc(tsc);
+
+ return 0;
+}
+
+static void lpc32xx_ts_close(struct input_dev *dev)
+{
+ struct lpc32xx_tsc *tsc = input_get_drvdata(dev);
+
+ lpc32xx_stop_tsc(tsc);
+}
+
+static int __devinit lpc32xx_ts_probe(struct platform_device *pdev)
+{
+ struct lpc32xx_tsc *tsc;
+ struct input_dev *input;
+ struct resource *res;
+ resource_size_t size;
+ int irq;
+ int error;
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!res) {
+ dev_err(&pdev->dev, "Can't get memory resource\n");
+ return -ENOENT;
+ }
+
+ irq = platform_get_irq(pdev, 0);
+ if (irq < 0) {
+ dev_err(&pdev->dev, "Can't get interrupt resource\n");
+ return irq;
+ }
+
+ tsc = kzalloc(sizeof(*tsc), GFP_KERNEL);
+ input = input_allocate_device();
+ if (!tsc || !input) {
+ dev_err(&pdev->dev, "failed allocating memory\n");
+ error = -ENOMEM;
+ goto err_free_mem;
+ }
+
+ tsc->dev = input;
+ tsc->irq = irq;
+
+ size = resource_size(res);
+
+ if (!request_mem_region(res->start, size, pdev->name)) {
+ dev_err(&pdev->dev, "TSC registers are not free\n");
+ error = -EBUSY;
+ goto err_free_mem;
+ }
+
+ tsc->tsc_base = ioremap(res->start, size);
+ if (!tsc->tsc_base) {
+ dev_err(&pdev->dev, "Can't map memory\n");
+ error = -ENOMEM;
+ goto err_release_mem;
+ }
+
+ tsc->clk = clk_get(&pdev->dev, NULL);
+ if (IS_ERR(tsc->clk)) {
+ dev_err(&pdev->dev, "failed getting clock\n");
+ error = PTR_ERR(tsc->clk);
+ goto err_unmap;
+ }
+
+ input->name = MOD_NAME;
+ input->phys = "lpc32xx/input0";
+ input->id.bustype = BUS_HOST;
+ input->id.vendor = 0x0001;
+ input->id.product = 0x0002;
+ input->id.version = 0x0100;
+ input->dev.parent = &pdev->dev;
+ input->open = lpc32xx_ts_open;
+ input->close = lpc32xx_ts_close;
+
+ input->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
+ input->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH);
+ input_set_abs_params(input, ABS_X, LPC32XX_TSC_MIN_XY_VAL,
+ LPC32XX_TSC_MAX_XY_VAL, 0, 0);
+ input_set_abs_params(input, ABS_Y, LPC32XX_TSC_MIN_XY_VAL,
+ LPC32XX_TSC_MAX_XY_VAL, 0, 0);
+
+ input_set_drvdata(input, tsc);
+
+ error = request_irq(tsc->irq, lpc32xx_ts_interrupt,
+ 0, pdev->name, tsc);
+ if (error) {
+ dev_err(&pdev->dev, "failed requesting interrupt\n");
+ goto err_put_clock;
+ }
+
+ error = input_register_device(input);
+ if (error) {
+ dev_err(&pdev->dev, "failed registering input device\n");
+ goto err_free_irq;
+ }
+
+ platform_set_drvdata(pdev, tsc);
+ device_init_wakeup(&pdev->dev, 1);
+
+ return 0;
+
+err_free_irq:
+ free_irq(tsc->irq, tsc);
+err_put_clock:
+ clk_put(tsc->clk);
+err_unmap:
+ iounmap(tsc->tsc_base);
+err_release_mem:
+ release_mem_region(res->start, size);
+err_free_mem:
+ input_free_device(input);
+ kfree(tsc);
+
+ return error;
+}
+
+static int __devexit lpc32xx_ts_remove(struct platform_device *pdev)
+{
+ struct lpc32xx_tsc *tsc = platform_get_drvdata(pdev);
+ struct resource *res;
+
+ device_init_wakeup(&pdev->dev, 0);
+ free_irq(tsc->irq, tsc);
+
+ input_unregister_device(tsc->dev);
+
+ clk_put(tsc->clk);
+
+ iounmap(tsc->tsc_base);
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ release_mem_region(res->start, resource_size(res));
+
+ kfree(tsc);
+
+ return 0;
+}
+
+#ifdef CONFIG_PM
+static int lpc32xx_ts_suspend(struct device *dev)
+{
+ struct lpc32xx_tsc *tsc = dev_get_drvdata(dev);
+ struct input_dev *input = tsc->dev;
+
+ /*
+ * Suspend and resume can be called when the device hasn't been
+ * enabled. If there are no users that have the device open, then
+ * avoid calling the TSC stop and start functions as the TSC
+ * isn't yet clocked.
+ */
+ mutex_lock(&input->mutex);
+
+ if (input->users) {
+ if (device_may_wakeup(dev))
+ enable_irq_wake(tsc->irq);
+ else
+ lpc32xx_stop_tsc(tsc);
+ }
+
+ mutex_unlock(&input->mutex);
+
+ return 0;
+}
+
+static int lpc32xx_ts_resume(struct device *dev)
+{
+ struct lpc32xx_tsc *tsc = dev_get_drvdata(dev);
+ struct input_dev *input = tsc->dev;
+
+ mutex_lock(&input->mutex);
+
+ if (input->users) {
+ if (device_may_wakeup(dev))
+ disable_irq_wake(tsc->irq);
+ else
+ lpc32xx_setup_tsc(tsc);
+ }
+
+ mutex_unlock(&input->mutex);
+
+ return 0;
+}
+
+static const struct dev_pm_ops lpc32xx_ts_pm_ops = {
+ .suspend = lpc32xx_ts_suspend,
+ .resume = lpc32xx_ts_resume,
+};
+#define LPC32XX_TS_PM_OPS (&lpc32xx_ts_pm_ops)
+#else
+#define LPC32XX_TS_PM_OPS NULL
+#endif
+
+static struct platform_driver lpc32xx_ts_driver = {
+ .probe = lpc32xx_ts_probe,
+ .remove = __devexit_p(lpc32xx_ts_remove),
+ .driver = {
+ .name = MOD_NAME,
+ .owner = THIS_MODULE,
+ .pm = LPC32XX_TS_PM_OPS,
+ },
+};
+
+static int __init lpc32xx_ts_init(void)
+{
+ return platform_driver_register(&lpc32xx_ts_driver);
+}
+module_init(lpc32xx_ts_init);
+
+static void __exit lpc32xx_ts_exit(void)
+{
+ platform_driver_unregister(&lpc32xx_ts_driver);
+}
+module_exit(lpc32xx_ts_exit);
+
+MODULE_AUTHOR("Kevin Wells <kevin.wells@nxp.com");
+MODULE_DESCRIPTION("LPC32XX TSC Driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:lpc32xx_ts");
diff --git a/drivers/input/touchscreen/mainstone-wm97xx.c b/drivers/input/touchscreen/mainstone-wm97xx.c
new file mode 100644
index 0000000..e966c29
--- /dev/null
+++ b/drivers/input/touchscreen/mainstone-wm97xx.c
@@ -0,0 +1,322 @@
+/*
+ * mainstone-wm97xx.c -- Mainstone Continuous Touch screen driver for
+ * Wolfson WM97xx AC97 Codecs.
+ *
+ * Copyright 2004, 2007 Wolfson Microelectronics PLC.
+ * Author: Liam Girdwood <lrg@slimlogic.co.uk>
+ * Parts Copyright : Ian Molton <spyro@f2s.com>
+ * Andrew Zabolotny <zap@homelink.ru>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * Notes:
+ * This is a wm97xx extended touch driver to capture touch
+ * data in a continuous manner on the Intel XScale architecture
+ *
+ * Features:
+ * - codecs supported:- WM9705, WM9712, WM9713
+ * - processors supported:- Intel XScale PXA25x, PXA26x, PXA27x
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/irq.h>
+#include <linux/interrupt.h>
+#include <linux/wm97xx.h>
+#include <linux/io.h>
+#include <linux/gpio.h>
+
+#include <mach/regs-ac97.h>
+
+#include <asm/mach-types.h>
+
+struct continuous {
+ u16 id; /* codec id */
+ u8 code; /* continuous code */
+ u8 reads; /* number of coord reads per read cycle */
+ u32 speed; /* number of coords per second */
+};
+
+#define WM_READS(sp) ((sp / HZ) + 1)
+
+static const struct continuous cinfo[] = {
+ {WM9705_ID2, 0, WM_READS(94), 94},
+ {WM9705_ID2, 1, WM_READS(188), 188},
+ {WM9705_ID2, 2, WM_READS(375), 375},
+ {WM9705_ID2, 3, WM_READS(750), 750},
+ {WM9712_ID2, 0, WM_READS(94), 94},
+ {WM9712_ID2, 1, WM_READS(188), 188},
+ {WM9712_ID2, 2, WM_READS(375), 375},
+ {WM9712_ID2, 3, WM_READS(750), 750},
+ {WM9713_ID2, 0, WM_READS(94), 94},
+ {WM9713_ID2, 1, WM_READS(120), 120},
+ {WM9713_ID2, 2, WM_READS(154), 154},
+ {WM9713_ID2, 3, WM_READS(188), 188},
+};
+
+/* continuous speed index */
+static int sp_idx;
+static u16 last, tries;
+static int irq;
+
+/*
+ * Pen sampling frequency (Hz) in continuous mode.
+ */
+static int cont_rate = 200;
+module_param(cont_rate, int, 0);
+MODULE_PARM_DESC(cont_rate, "Sampling rate in continuous mode (Hz)");
+
+/*
+ * Pen down detection.
+ *
+ * This driver can either poll or use an interrupt to indicate a pen down
+ * event. If the irq request fails then it will fall back to polling mode.
+ */
+static int pen_int;
+module_param(pen_int, int, 0);
+MODULE_PARM_DESC(pen_int, "Pen down detection (1 = interrupt, 0 = polling)");
+
+/*
+ * Pressure readback.
+ *
+ * Set to 1 to read back pen down pressure
+ */
+static int pressure;
+module_param(pressure, int, 0);
+MODULE_PARM_DESC(pressure, "Pressure readback (1 = pressure, 0 = no pressure)");
+
+/*
+ * AC97 touch data slot.
+ *
+ * Touch screen readback data ac97 slot
+ */
+static int ac97_touch_slot = 5;
+module_param(ac97_touch_slot, int, 0);
+MODULE_PARM_DESC(ac97_touch_slot, "Touch screen data slot AC97 number");
+
+
+/* flush AC97 slot 5 FIFO on pxa machines */
+#ifdef CONFIG_PXA27x
+static void wm97xx_acc_pen_up(struct wm97xx *wm)
+{
+ schedule_timeout_uninterruptible(1);
+
+ while (MISR & (1 << 2))
+ MODR;
+}
+#else
+static void wm97xx_acc_pen_up(struct wm97xx *wm)
+{
+ unsigned int count;
+
+ schedule_timeout_uninterruptible(1);
+
+ for (count = 0; count < 16; count++)
+ MODR;
+}
+#endif
+
+static int wm97xx_acc_pen_down(struct wm97xx *wm)
+{
+ u16 x, y, p = 0x100 | WM97XX_ADCSEL_PRES;
+ int reads = 0;
+
+ /* When the AC97 queue has been drained we need to allow time
+ * to buffer up samples otherwise we end up spinning polling
+ * for samples. The controller can't have a suitably low
+ * threshold set to use the notifications it gives.
+ */
+ schedule_timeout_uninterruptible(1);
+
+ if (tries > 5) {
+ tries = 0;
+ return RC_PENUP;
+ }
+
+ x = MODR;
+ if (x == last) {
+ tries++;
+ return RC_AGAIN;
+ }
+ last = x;
+ do {
+ if (reads)
+ x = MODR;
+ y = MODR;
+ if (pressure)
+ p = MODR;
+
+ dev_dbg(wm->dev, "Raw coordinates: x=%x, y=%x, p=%x\n",
+ x, y, p);
+
+ /* are samples valid */
+ if ((x & WM97XX_ADCSEL_MASK) != WM97XX_ADCSEL_X ||
+ (y & WM97XX_ADCSEL_MASK) != WM97XX_ADCSEL_Y ||
+ (p & WM97XX_ADCSEL_MASK) != WM97XX_ADCSEL_PRES)
+ goto up;
+
+ /* coordinate is good */
+ tries = 0;
+ input_report_abs(wm->input_dev, ABS_X, x & 0xfff);
+ input_report_abs(wm->input_dev, ABS_Y, y & 0xfff);
+ input_report_abs(wm->input_dev, ABS_PRESSURE, p & 0xfff);
+ input_report_key(wm->input_dev, BTN_TOUCH, (p != 0));
+ input_sync(wm->input_dev);
+ reads++;
+ } while (reads < cinfo[sp_idx].reads);
+up:
+ return RC_PENDOWN | RC_AGAIN;
+}
+
+static int wm97xx_acc_startup(struct wm97xx *wm)
+{
+ int idx = 0, ret = 0;
+
+ /* check we have a codec */
+ if (wm->ac97 == NULL)
+ return -ENODEV;
+
+ /* Go you big red fire engine */
+ for (idx = 0; idx < ARRAY_SIZE(cinfo); idx++) {
+ if (wm->id != cinfo[idx].id)
+ continue;
+ sp_idx = idx;
+ if (cont_rate <= cinfo[idx].speed)
+ break;
+ }
+ wm->acc_rate = cinfo[sp_idx].code;
+ wm->acc_slot = ac97_touch_slot;
+ dev_info(wm->dev,
+ "mainstone accelerated touchscreen driver, %d samples/sec\n",
+ cinfo[sp_idx].speed);
+
+ /* IRQ driven touchscreen is used on Palm hardware */
+ if (machine_is_palmt5() || machine_is_palmtx() || machine_is_palmld()) {
+ pen_int = 1;
+ irq = 27;
+ /* There is some obscure mutant of WM9712 interbred with WM9713
+ * used on Palm HW */
+ wm->variant = WM97xx_WM1613;
+ } else if (machine_is_mainstone() && pen_int)
+ irq = 4;
+
+ if (irq) {
+ ret = gpio_request(irq, "Touchscreen IRQ");
+ if (ret)
+ goto out;
+
+ ret = gpio_direction_input(irq);
+ if (ret) {
+ gpio_free(irq);
+ goto out;
+ }
+
+ wm->pen_irq = gpio_to_irq(irq);
+ irq_set_irq_type(wm->pen_irq, IRQ_TYPE_EDGE_BOTH);
+ } else /* pen irq not supported */
+ pen_int = 0;
+
+ /* codec specific irq config */
+ if (pen_int) {
+ switch (wm->id) {
+ case WM9705_ID2:
+ break;
+ case WM9712_ID2:
+ case WM9713_ID2:
+ /* use PEN_DOWN GPIO 13 to assert IRQ on GPIO line 2 */
+ wm97xx_config_gpio(wm, WM97XX_GPIO_13, WM97XX_GPIO_IN,
+ WM97XX_GPIO_POL_HIGH,
+ WM97XX_GPIO_STICKY,
+ WM97XX_GPIO_WAKE);
+ wm97xx_config_gpio(wm, WM97XX_GPIO_2, WM97XX_GPIO_OUT,
+ WM97XX_GPIO_POL_HIGH,
+ WM97XX_GPIO_NOTSTICKY,
+ WM97XX_GPIO_NOWAKE);
+ break;
+ default:
+ dev_err(wm->dev,
+ "pen down irq not supported on this device\n");
+ pen_int = 0;
+ break;
+ }
+ }
+
+out:
+ return ret;
+}
+
+static void wm97xx_acc_shutdown(struct wm97xx *wm)
+{
+ /* codec specific deconfig */
+ if (pen_int) {
+ if (irq)
+ gpio_free(irq);
+ wm->pen_irq = 0;
+ }
+}
+
+static void wm97xx_irq_enable(struct wm97xx *wm, int enable)
+{
+ if (enable)
+ enable_irq(wm->pen_irq);
+ else
+ disable_irq_nosync(wm->pen_irq);
+}
+
+static struct wm97xx_mach_ops mainstone_mach_ops = {
+ .acc_enabled = 1,
+ .acc_pen_up = wm97xx_acc_pen_up,
+ .acc_pen_down = wm97xx_acc_pen_down,
+ .acc_startup = wm97xx_acc_startup,
+ .acc_shutdown = wm97xx_acc_shutdown,
+ .irq_enable = wm97xx_irq_enable,
+ .irq_gpio = WM97XX_GPIO_2,
+};
+
+static int mainstone_wm97xx_probe(struct platform_device *pdev)
+{
+ struct wm97xx *wm = platform_get_drvdata(pdev);
+
+ return wm97xx_register_mach_ops(wm, &mainstone_mach_ops);
+}
+
+static int mainstone_wm97xx_remove(struct platform_device *pdev)
+{
+ struct wm97xx *wm = platform_get_drvdata(pdev);
+
+ wm97xx_unregister_mach_ops(wm);
+ return 0;
+}
+
+static struct platform_driver mainstone_wm97xx_driver = {
+ .probe = mainstone_wm97xx_probe,
+ .remove = mainstone_wm97xx_remove,
+ .driver = {
+ .name = "wm97xx-touch",
+ },
+};
+
+static int __init mainstone_wm97xx_init(void)
+{
+ return platform_driver_register(&mainstone_wm97xx_driver);
+}
+
+static void __exit mainstone_wm97xx_exit(void)
+{
+ platform_driver_unregister(&mainstone_wm97xx_driver);
+}
+
+module_init(mainstone_wm97xx_init);
+module_exit(mainstone_wm97xx_exit);
+
+/* Module information */
+MODULE_AUTHOR("Liam Girdwood <lrg@slimlogic.co.uk>");
+MODULE_DESCRIPTION("wm97xx continuous touch driver for mainstone");
+MODULE_LICENSE("GPL");
diff --git a/drivers/input/touchscreen/max11801_ts.c b/drivers/input/touchscreen/max11801_ts.c
new file mode 100644
index 0000000..4627fe5
--- /dev/null
+++ b/drivers/input/touchscreen/max11801_ts.c
@@ -0,0 +1,273 @@
+/*
+ * Driver for MAXI MAX11801 - A Resistive touch screen controller with
+ * i2c interface
+ *
+ * Copyright (C) 2011 Freescale Semiconductor, Inc.
+ * Author: Zhang Jiejing <jiejing.zhang@freescale.com>
+ *
+ * Based on mcs5000_ts.c
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+/*
+ * This driver aims to support the series of MAXI touch chips max11801
+ * through max11803. The main difference between these 4 chips can be
+ * found in the table below:
+ * -----------------------------------------------------
+ * | CHIP | AUTO MODE SUPPORT(FIFO) | INTERFACE |
+ * |----------------------------------------------------|
+ * | max11800 | YES | SPI |
+ * | max11801 | YES | I2C |
+ * | max11802 | NO | SPI |
+ * | max11803 | NO | I2C |
+ * ------------------------------------------------------
+ *
+ * Currently, this driver only supports max11801.
+ *
+ * Data Sheet:
+ * http://www.maxim-ic.com/datasheet/index.mvp/id/5943
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/i2c.h>
+#include <linux/interrupt.h>
+#include <linux/input.h>
+#include <linux/slab.h>
+#include <linux/bitops.h>
+
+/* Register Address define */
+#define GENERNAL_STATUS_REG 0x00
+#define GENERNAL_CONF_REG 0x01
+#define MESURE_RES_CONF_REG 0x02
+#define MESURE_AVER_CONF_REG 0x03
+#define ADC_SAMPLE_TIME_CONF_REG 0x04
+#define PANEL_SETUPTIME_CONF_REG 0x05
+#define DELAY_CONVERSION_CONF_REG 0x06
+#define TOUCH_DETECT_PULLUP_CONF_REG 0x07
+#define AUTO_MODE_TIME_CONF_REG 0x08 /* only for max11800/max11801 */
+#define APERTURE_CONF_REG 0x09 /* only for max11800/max11801 */
+#define AUX_MESURE_CONF_REG 0x0a
+#define OP_MODE_CONF_REG 0x0b
+
+/* FIFO is found only in max11800 and max11801 */
+#define FIFO_RD_CMD (0x50 << 1)
+#define MAX11801_FIFO_INT (1 << 2)
+#define MAX11801_FIFO_OVERFLOW (1 << 3)
+
+#define XY_BUFSIZE 4
+#define XY_BUF_OFFSET 4
+
+#define MAX11801_MAX_X 0xfff
+#define MAX11801_MAX_Y 0xfff
+
+#define MEASURE_TAG_OFFSET 2
+#define MEASURE_TAG_MASK (3 << MEASURE_TAG_OFFSET)
+#define EVENT_TAG_OFFSET 0
+#define EVENT_TAG_MASK (3 << EVENT_TAG_OFFSET)
+#define MEASURE_X_TAG (0 << MEASURE_TAG_OFFSET)
+#define MEASURE_Y_TAG (1 << MEASURE_TAG_OFFSET)
+
+/* These are the state of touch event state machine */
+enum {
+ EVENT_INIT,
+ EVENT_MIDDLE,
+ EVENT_RELEASE,
+ EVENT_FIFO_END
+};
+
+struct max11801_data {
+ struct i2c_client *client;
+ struct input_dev *input_dev;
+};
+
+static u8 read_register(struct i2c_client *client, int addr)
+{
+ /* XXX: The chip ignores LSB of register address */
+ return i2c_smbus_read_byte_data(client, addr << 1);
+}
+
+static int max11801_write_reg(struct i2c_client *client, int addr, int data)
+{
+ /* XXX: The chip ignores LSB of register address */
+ return i2c_smbus_write_byte_data(client, addr << 1, data);
+}
+
+static irqreturn_t max11801_ts_interrupt(int irq, void *dev_id)
+{
+ struct max11801_data *data = dev_id;
+ struct i2c_client *client = data->client;
+ int status, i, ret;
+ u8 buf[XY_BUFSIZE];
+ int x = -1;
+ int y = -1;
+
+ status = read_register(data->client, GENERNAL_STATUS_REG);
+
+ if (status & (MAX11801_FIFO_INT | MAX11801_FIFO_OVERFLOW)) {
+ status = read_register(data->client, GENERNAL_STATUS_REG);
+
+ ret = i2c_smbus_read_i2c_block_data(client, FIFO_RD_CMD,
+ XY_BUFSIZE, buf);
+
+ /*
+ * We should get 4 bytes buffer that contains X,Y
+ * and event tag
+ */
+ if (ret < XY_BUFSIZE)
+ goto out;
+
+ for (i = 0; i < XY_BUFSIZE; i += XY_BUFSIZE / 2) {
+ if ((buf[i + 1] & MEASURE_TAG_MASK) == MEASURE_X_TAG)
+ x = (buf[i] << XY_BUF_OFFSET) +
+ (buf[i + 1] >> XY_BUF_OFFSET);
+ else if ((buf[i + 1] & MEASURE_TAG_MASK) == MEASURE_Y_TAG)
+ y = (buf[i] << XY_BUF_OFFSET) +
+ (buf[i + 1] >> XY_BUF_OFFSET);
+ }
+
+ if ((buf[1] & EVENT_TAG_MASK) != (buf[3] & EVENT_TAG_MASK))
+ goto out;
+
+ switch (buf[1] & EVENT_TAG_MASK) {
+ case EVENT_INIT:
+ /* fall through */
+ case EVENT_MIDDLE:
+ input_report_abs(data->input_dev, ABS_X, x);
+ input_report_abs(data->input_dev, ABS_Y, y);
+ input_event(data->input_dev, EV_KEY, BTN_TOUCH, 1);
+ input_sync(data->input_dev);
+ break;
+
+ case EVENT_RELEASE:
+ input_event(data->input_dev, EV_KEY, BTN_TOUCH, 0);
+ input_sync(data->input_dev);
+ break;
+
+ case EVENT_FIFO_END:
+ break;
+ }
+ }
+out:
+ return IRQ_HANDLED;
+}
+
+static void __devinit max11801_ts_phy_init(struct max11801_data *data)
+{
+ struct i2c_client *client = data->client;
+
+ /* Average X,Y, take 16 samples, average eight media sample */
+ max11801_write_reg(client, MESURE_AVER_CONF_REG, 0xff);
+ /* X,Y panel setup time set to 20us */
+ max11801_write_reg(client, PANEL_SETUPTIME_CONF_REG, 0x11);
+ /* Rough pullup time (2uS), Fine pullup time (10us) */
+ max11801_write_reg(client, TOUCH_DETECT_PULLUP_CONF_REG, 0x10);
+ /* Auto mode init period = 5ms , scan period = 5ms*/
+ max11801_write_reg(client, AUTO_MODE_TIME_CONF_REG, 0xaa);
+ /* Aperture X,Y set to +- 4LSB */
+ max11801_write_reg(client, APERTURE_CONF_REG, 0x33);
+ /* Enable Power, enable Automode, enable Aperture, enable Average X,Y */
+ max11801_write_reg(client, OP_MODE_CONF_REG, 0x36);
+}
+
+static int __devinit max11801_ts_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct max11801_data *data;
+ struct input_dev *input_dev;
+ int error;
+
+ data = kzalloc(sizeof(struct max11801_data), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!data || !input_dev) {
+ dev_err(&client->dev, "Failed to allocate memory\n");
+ error = -ENOMEM;
+ goto err_free_mem;
+ }
+
+ data->client = client;
+ data->input_dev = input_dev;
+
+ input_dev->name = "max11801_ts";
+ input_dev->id.bustype = BUS_I2C;
+ input_dev->dev.parent = &client->dev;
+
+ __set_bit(EV_ABS, input_dev->evbit);
+ __set_bit(EV_KEY, input_dev->evbit);
+ __set_bit(BTN_TOUCH, input_dev->keybit);
+ input_set_abs_params(input_dev, ABS_X, 0, MAX11801_MAX_X, 0, 0);
+ input_set_abs_params(input_dev, ABS_Y, 0, MAX11801_MAX_Y, 0, 0);
+ input_set_drvdata(input_dev, data);
+
+ max11801_ts_phy_init(data);
+
+ error = request_threaded_irq(client->irq, NULL, max11801_ts_interrupt,
+ IRQF_TRIGGER_LOW | IRQF_ONESHOT,
+ "max11801_ts", data);
+ if (error) {
+ dev_err(&client->dev, "Failed to register interrupt\n");
+ goto err_free_mem;
+ }
+
+ error = input_register_device(data->input_dev);
+ if (error)
+ goto err_free_irq;
+
+ i2c_set_clientdata(client, data);
+ return 0;
+
+err_free_irq:
+ free_irq(client->irq, data);
+err_free_mem:
+ input_free_device(input_dev);
+ kfree(data);
+ return error;
+}
+
+static __devexit int max11801_ts_remove(struct i2c_client *client)
+{
+ struct max11801_data *data = i2c_get_clientdata(client);
+
+ free_irq(client->irq, data);
+ input_unregister_device(data->input_dev);
+ kfree(data);
+
+ return 0;
+}
+
+static const struct i2c_device_id max11801_ts_id[] = {
+ {"max11801", 0},
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, max11801_ts_id);
+
+static struct i2c_driver max11801_ts_driver = {
+ .driver = {
+ .name = "max11801_ts",
+ .owner = THIS_MODULE,
+ },
+ .id_table = max11801_ts_id,
+ .probe = max11801_ts_probe,
+ .remove = __devexit_p(max11801_ts_remove),
+};
+
+static int __init max11801_ts_init(void)
+{
+ return i2c_add_driver(&max11801_ts_driver);
+}
+
+static void __exit max11801_ts_exit(void)
+{
+ i2c_del_driver(&max11801_ts_driver);
+}
+
+module_init(max11801_ts_init);
+module_exit(max11801_ts_exit);
+
+MODULE_AUTHOR("Zhang Jiejing <jiejing.zhang@freescale.com>");
+MODULE_DESCRIPTION("Touchscreen driver for MAXI MAX11801 controller");
+MODULE_LICENSE("GPL");
diff --git a/drivers/input/touchscreen/mc13783_ts.c b/drivers/input/touchscreen/mc13783_ts.c
new file mode 100644
index 0000000..ede0274
--- /dev/null
+++ b/drivers/input/touchscreen/mc13783_ts.c
@@ -0,0 +1,259 @@
+/*
+ * Driver for the Freescale Semiconductor MC13783 touchscreen.
+ *
+ * Copyright 2004-2007 Freescale Semiconductor, Inc. All Rights Reserved.
+ * Copyright (C) 2009 Sascha Hauer, Pengutronix
+ *
+ * Initial development of this code was funded by
+ * Phytec Messtechnik GmbH, http://www.phytec.de/
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ */
+#include <linux/platform_device.h>
+#include <linux/mfd/mc13783.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/input.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
+#include <linux/init.h>
+
+#define MC13783_TS_NAME "mc13783-ts"
+
+#define DEFAULT_SAMPLE_TOLERANCE 300
+
+static unsigned int sample_tolerance = DEFAULT_SAMPLE_TOLERANCE;
+module_param(sample_tolerance, uint, S_IRUGO | S_IWUSR);
+MODULE_PARM_DESC(sample_tolerance,
+ "If the minimal and maximal value read out for one axis (out "
+ "of three) differ by this value (default: "
+ __stringify(DEFAULT_SAMPLE_TOLERANCE) ") or more, the reading "
+ "is supposed to be wrong and is discarded. Set to 0 to "
+ "disable this check.");
+
+struct mc13783_ts_priv {
+ struct input_dev *idev;
+ struct mc13xxx *mc13xxx;
+ struct delayed_work work;
+ struct workqueue_struct *workq;
+ unsigned int sample[4];
+};
+
+static irqreturn_t mc13783_ts_handler(int irq, void *data)
+{
+ struct mc13783_ts_priv *priv = data;
+
+ mc13xxx_irq_ack(priv->mc13xxx, irq);
+
+ /*
+ * Kick off reading coordinates. Note that if work happens already
+ * be queued for future execution (it rearms itself) it will not
+ * be rescheduled for immediate execution here. However the rearm
+ * delay is HZ / 50 which is acceptable.
+ */
+ queue_delayed_work(priv->workq, &priv->work, 0);
+
+ return IRQ_HANDLED;
+}
+
+#define sort3(a0, a1, a2) ({ \
+ if (a0 > a1) \
+ swap(a0, a1); \
+ if (a1 > a2) \
+ swap(a1, a2); \
+ if (a0 > a1) \
+ swap(a0, a1); \
+ })
+
+static void mc13783_ts_report_sample(struct mc13783_ts_priv *priv)
+{
+ struct input_dev *idev = priv->idev;
+ int x0, x1, x2, y0, y1, y2;
+ int cr0, cr1;
+
+ /*
+ * the values are 10-bit wide only, but the two least significant
+ * bits are for future 12 bit use and reading yields 0
+ */
+ x0 = priv->sample[0] & 0xfff;
+ x1 = priv->sample[1] & 0xfff;
+ x2 = priv->sample[2] & 0xfff;
+ y0 = priv->sample[3] & 0xfff;
+ y1 = (priv->sample[0] >> 12) & 0xfff;
+ y2 = (priv->sample[1] >> 12) & 0xfff;
+ cr0 = (priv->sample[2] >> 12) & 0xfff;
+ cr1 = (priv->sample[3] >> 12) & 0xfff;
+
+ dev_dbg(&idev->dev,
+ "x: (% 4d,% 4d,% 4d) y: (% 4d, % 4d,% 4d) cr: (% 4d, % 4d)\n",
+ x0, x1, x2, y0, y1, y2, cr0, cr1);
+
+ sort3(x0, x1, x2);
+ sort3(y0, y1, y2);
+
+ cr0 = (cr0 + cr1) / 2;
+
+ if (!cr0 || !sample_tolerance ||
+ (x2 - x0 < sample_tolerance &&
+ y2 - y0 < sample_tolerance)) {
+ /* report the median coordinate and average pressure */
+ if (cr0) {
+ input_report_abs(idev, ABS_X, x1);
+ input_report_abs(idev, ABS_Y, y1);
+
+ dev_dbg(&idev->dev, "report (%d, %d, %d)\n",
+ x1, y1, 0x1000 - cr0);
+ queue_delayed_work(priv->workq, &priv->work, HZ / 50);
+ } else
+ dev_dbg(&idev->dev, "report release\n");
+
+ input_report_abs(idev, ABS_PRESSURE,
+ cr0 ? 0x1000 - cr0 : cr0);
+ input_report_key(idev, BTN_TOUCH, cr0);
+ input_sync(idev);
+ } else
+ dev_dbg(&idev->dev, "discard event\n");
+}
+
+static void mc13783_ts_work(struct work_struct *work)
+{
+ struct mc13783_ts_priv *priv =
+ container_of(work, struct mc13783_ts_priv, work.work);
+ unsigned int mode = MC13XXX_ADC_MODE_TS;
+ unsigned int channel = 12;
+
+ if (mc13xxx_adc_do_conversion(priv->mc13xxx,
+ mode, channel, priv->sample) == 0)
+ mc13783_ts_report_sample(priv);
+}
+
+static int mc13783_ts_open(struct input_dev *dev)
+{
+ struct mc13783_ts_priv *priv = input_get_drvdata(dev);
+ int ret;
+
+ mc13xxx_lock(priv->mc13xxx);
+
+ mc13xxx_irq_ack(priv->mc13xxx, MC13XXX_IRQ_TS);
+
+ ret = mc13xxx_irq_request(priv->mc13xxx, MC13XXX_IRQ_TS,
+ mc13783_ts_handler, MC13783_TS_NAME, priv);
+ if (ret)
+ goto out;
+
+ ret = mc13xxx_reg_rmw(priv->mc13xxx, MC13XXX_ADC0,
+ MC13XXX_ADC0_TSMOD_MASK, MC13XXX_ADC0_TSMOD0);
+ if (ret)
+ mc13xxx_irq_free(priv->mc13xxx, MC13XXX_IRQ_TS, priv);
+out:
+ mc13xxx_unlock(priv->mc13xxx);
+ return ret;
+}
+
+static void mc13783_ts_close(struct input_dev *dev)
+{
+ struct mc13783_ts_priv *priv = input_get_drvdata(dev);
+
+ mc13xxx_lock(priv->mc13xxx);
+ mc13xxx_reg_rmw(priv->mc13xxx, MC13XXX_ADC0,
+ MC13XXX_ADC0_TSMOD_MASK, 0);
+ mc13xxx_irq_free(priv->mc13xxx, MC13XXX_IRQ_TS, priv);
+ mc13xxx_unlock(priv->mc13xxx);
+
+ cancel_delayed_work_sync(&priv->work);
+}
+
+static int __init mc13783_ts_probe(struct platform_device *pdev)
+{
+ struct mc13783_ts_priv *priv;
+ struct input_dev *idev;
+ int ret = -ENOMEM;
+
+ priv = kzalloc(sizeof(*priv), GFP_KERNEL);
+ idev = input_allocate_device();
+ if (!priv || !idev)
+ goto err_free_mem;
+
+ INIT_DELAYED_WORK(&priv->work, mc13783_ts_work);
+ priv->mc13xxx = dev_get_drvdata(pdev->dev.parent);
+ priv->idev = idev;
+
+ /*
+ * We need separate workqueue because mc13783_adc_do_conversion
+ * uses keventd and thus would deadlock.
+ */
+ priv->workq = create_singlethread_workqueue("mc13783_ts");
+ if (!priv->workq)
+ goto err_free_mem;
+
+ idev->name = MC13783_TS_NAME;
+ idev->dev.parent = &pdev->dev;
+
+ idev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
+ idev->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH);
+ input_set_abs_params(idev, ABS_X, 0, 0xfff, 0, 0);
+ input_set_abs_params(idev, ABS_Y, 0, 0xfff, 0, 0);
+ input_set_abs_params(idev, ABS_PRESSURE, 0, 0xfff, 0, 0);
+
+ idev->open = mc13783_ts_open;
+ idev->close = mc13783_ts_close;
+
+ input_set_drvdata(idev, priv);
+
+ ret = input_register_device(priv->idev);
+ if (ret) {
+ dev_err(&pdev->dev,
+ "register input device failed with %d\n", ret);
+ goto err_destroy_wq;
+ }
+
+ platform_set_drvdata(pdev, priv);
+ return 0;
+
+err_destroy_wq:
+ destroy_workqueue(priv->workq);
+err_free_mem:
+ input_free_device(idev);
+ kfree(priv);
+ return ret;
+}
+
+static int __devexit mc13783_ts_remove(struct platform_device *pdev)
+{
+ struct mc13783_ts_priv *priv = platform_get_drvdata(pdev);
+
+ platform_set_drvdata(pdev, NULL);
+
+ destroy_workqueue(priv->workq);
+ input_unregister_device(priv->idev);
+ kfree(priv);
+
+ return 0;
+}
+
+static struct platform_driver mc13783_ts_driver = {
+ .remove = __devexit_p(mc13783_ts_remove),
+ .driver = {
+ .owner = THIS_MODULE,
+ .name = MC13783_TS_NAME,
+ },
+};
+
+static int __init mc13783_ts_init(void)
+{
+ return platform_driver_probe(&mc13783_ts_driver, &mc13783_ts_probe);
+}
+module_init(mc13783_ts_init);
+
+static void __exit mc13783_ts_exit(void)
+{
+ platform_driver_unregister(&mc13783_ts_driver);
+}
+module_exit(mc13783_ts_exit);
+
+MODULE_DESCRIPTION("MC13783 input touchscreen driver");
+MODULE_AUTHOR("Sascha Hauer <s.hauer@pengutronix.de>");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:" MC13783_TS_NAME);
diff --git a/drivers/input/touchscreen/mcs5000_ts.c b/drivers/input/touchscreen/mcs5000_ts.c
new file mode 100644
index 0000000..2d84c80
--- /dev/null
+++ b/drivers/input/touchscreen/mcs5000_ts.c
@@ -0,0 +1,321 @@
+/*
+ * mcs5000_ts.c - Touchscreen driver for MELFAS MCS-5000 controller
+ *
+ * Copyright (C) 2009 Samsung Electronics Co.Ltd
+ * Author: Joonyoung Shim <jy0922.shim@samsung.com>
+ *
+ * Based on wm97xx-core.c
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/i2c.h>
+#include <linux/i2c/mcs.h>
+#include <linux/interrupt.h>
+#include <linux/input.h>
+#include <linux/irq.h>
+#include <linux/slab.h>
+
+/* Registers */
+#define MCS5000_TS_STATUS 0x00
+#define STATUS_OFFSET 0
+#define STATUS_NO (0 << STATUS_OFFSET)
+#define STATUS_INIT (1 << STATUS_OFFSET)
+#define STATUS_SENSING (2 << STATUS_OFFSET)
+#define STATUS_COORD (3 << STATUS_OFFSET)
+#define STATUS_GESTURE (4 << STATUS_OFFSET)
+#define ERROR_OFFSET 4
+#define ERROR_NO (0 << ERROR_OFFSET)
+#define ERROR_POWER_ON_RESET (1 << ERROR_OFFSET)
+#define ERROR_INT_RESET (2 << ERROR_OFFSET)
+#define ERROR_EXT_RESET (3 << ERROR_OFFSET)
+#define ERROR_INVALID_REG_ADDRESS (8 << ERROR_OFFSET)
+#define ERROR_INVALID_REG_VALUE (9 << ERROR_OFFSET)
+
+#define MCS5000_TS_OP_MODE 0x01
+#define RESET_OFFSET 0
+#define RESET_NO (0 << RESET_OFFSET)
+#define RESET_EXT_SOFT (1 << RESET_OFFSET)
+#define OP_MODE_OFFSET 1
+#define OP_MODE_SLEEP (0 << OP_MODE_OFFSET)
+#define OP_MODE_ACTIVE (1 << OP_MODE_OFFSET)
+#define GESTURE_OFFSET 4
+#define GESTURE_DISABLE (0 << GESTURE_OFFSET)
+#define GESTURE_ENABLE (1 << GESTURE_OFFSET)
+#define PROXIMITY_OFFSET 5
+#define PROXIMITY_DISABLE (0 << PROXIMITY_OFFSET)
+#define PROXIMITY_ENABLE (1 << PROXIMITY_OFFSET)
+#define SCAN_MODE_OFFSET 6
+#define SCAN_MODE_INTERRUPT (0 << SCAN_MODE_OFFSET)
+#define SCAN_MODE_POLLING (1 << SCAN_MODE_OFFSET)
+#define REPORT_RATE_OFFSET 7
+#define REPORT_RATE_40 (0 << REPORT_RATE_OFFSET)
+#define REPORT_RATE_80 (1 << REPORT_RATE_OFFSET)
+
+#define MCS5000_TS_SENS_CTL 0x02
+#define MCS5000_TS_FILTER_CTL 0x03
+#define PRI_FILTER_OFFSET 0
+#define SEC_FILTER_OFFSET 4
+
+#define MCS5000_TS_X_SIZE_UPPER 0x08
+#define MCS5000_TS_X_SIZE_LOWER 0x09
+#define MCS5000_TS_Y_SIZE_UPPER 0x0A
+#define MCS5000_TS_Y_SIZE_LOWER 0x0B
+
+#define MCS5000_TS_INPUT_INFO 0x10
+#define INPUT_TYPE_OFFSET 0
+#define INPUT_TYPE_NONTOUCH (0 << INPUT_TYPE_OFFSET)
+#define INPUT_TYPE_SINGLE (1 << INPUT_TYPE_OFFSET)
+#define INPUT_TYPE_DUAL (2 << INPUT_TYPE_OFFSET)
+#define INPUT_TYPE_PALM (3 << INPUT_TYPE_OFFSET)
+#define INPUT_TYPE_PROXIMITY (7 << INPUT_TYPE_OFFSET)
+#define GESTURE_CODE_OFFSET 3
+#define GESTURE_CODE_NO (0 << GESTURE_CODE_OFFSET)
+
+#define MCS5000_TS_X_POS_UPPER 0x11
+#define MCS5000_TS_X_POS_LOWER 0x12
+#define MCS5000_TS_Y_POS_UPPER 0x13
+#define MCS5000_TS_Y_POS_LOWER 0x14
+#define MCS5000_TS_Z_POS 0x15
+#define MCS5000_TS_WIDTH 0x16
+#define MCS5000_TS_GESTURE_VAL 0x17
+#define MCS5000_TS_MODULE_REV 0x20
+#define MCS5000_TS_FIRMWARE_VER 0x21
+
+/* Touchscreen absolute values */
+#define MCS5000_MAX_XC 0x3ff
+#define MCS5000_MAX_YC 0x3ff
+
+enum mcs5000_ts_read_offset {
+ READ_INPUT_INFO,
+ READ_X_POS_UPPER,
+ READ_X_POS_LOWER,
+ READ_Y_POS_UPPER,
+ READ_Y_POS_LOWER,
+ READ_BLOCK_SIZE,
+};
+
+/* Each client has this additional data */
+struct mcs5000_ts_data {
+ struct i2c_client *client;
+ struct input_dev *input_dev;
+ const struct mcs_platform_data *platform_data;
+};
+
+static irqreturn_t mcs5000_ts_interrupt(int irq, void *dev_id)
+{
+ struct mcs5000_ts_data *data = dev_id;
+ struct i2c_client *client = data->client;
+ u8 buffer[READ_BLOCK_SIZE];
+ int err;
+ int x;
+ int y;
+
+ err = i2c_smbus_read_i2c_block_data(client, MCS5000_TS_INPUT_INFO,
+ READ_BLOCK_SIZE, buffer);
+ if (err < 0) {
+ dev_err(&client->dev, "%s, err[%d]\n", __func__, err);
+ goto out;
+ }
+
+ switch (buffer[READ_INPUT_INFO]) {
+ case INPUT_TYPE_NONTOUCH:
+ input_report_key(data->input_dev, BTN_TOUCH, 0);
+ input_sync(data->input_dev);
+ break;
+
+ case INPUT_TYPE_SINGLE:
+ x = (buffer[READ_X_POS_UPPER] << 8) | buffer[READ_X_POS_LOWER];
+ y = (buffer[READ_Y_POS_UPPER] << 8) | buffer[READ_Y_POS_LOWER];
+
+ input_report_key(data->input_dev, BTN_TOUCH, 1);
+ input_report_abs(data->input_dev, ABS_X, x);
+ input_report_abs(data->input_dev, ABS_Y, y);
+ input_sync(data->input_dev);
+ break;
+
+ case INPUT_TYPE_DUAL:
+ /* TODO */
+ break;
+
+ case INPUT_TYPE_PALM:
+ /* TODO */
+ break;
+
+ case INPUT_TYPE_PROXIMITY:
+ /* TODO */
+ break;
+
+ default:
+ dev_err(&client->dev, "Unknown ts input type %d\n",
+ buffer[READ_INPUT_INFO]);
+ break;
+ }
+
+ out:
+ return IRQ_HANDLED;
+}
+
+static void mcs5000_ts_phys_init(struct mcs5000_ts_data *data)
+{
+ const struct mcs_platform_data *platform_data =
+ data->platform_data;
+ struct i2c_client *client = data->client;
+
+ /* Touch reset & sleep mode */
+ i2c_smbus_write_byte_data(client, MCS5000_TS_OP_MODE,
+ RESET_EXT_SOFT | OP_MODE_SLEEP);
+
+ /* Touch size */
+ i2c_smbus_write_byte_data(client, MCS5000_TS_X_SIZE_UPPER,
+ platform_data->x_size >> 8);
+ i2c_smbus_write_byte_data(client, MCS5000_TS_X_SIZE_LOWER,
+ platform_data->x_size & 0xff);
+ i2c_smbus_write_byte_data(client, MCS5000_TS_Y_SIZE_UPPER,
+ platform_data->y_size >> 8);
+ i2c_smbus_write_byte_data(client, MCS5000_TS_Y_SIZE_LOWER,
+ platform_data->y_size & 0xff);
+
+ /* Touch active mode & 80 report rate */
+ i2c_smbus_write_byte_data(data->client, MCS5000_TS_OP_MODE,
+ OP_MODE_ACTIVE | REPORT_RATE_80);
+}
+
+static int __devinit mcs5000_ts_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct mcs5000_ts_data *data;
+ struct input_dev *input_dev;
+ int ret;
+
+ if (!client->dev.platform_data)
+ return -EINVAL;
+
+ data = kzalloc(sizeof(struct mcs5000_ts_data), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!data || !input_dev) {
+ dev_err(&client->dev, "Failed to allocate memory\n");
+ ret = -ENOMEM;
+ goto err_free_mem;
+ }
+
+ data->client = client;
+ data->input_dev = input_dev;
+ data->platform_data = client->dev.platform_data;
+
+ input_dev->name = "MELPAS MCS-5000 Touchscreen";
+ input_dev->id.bustype = BUS_I2C;
+ input_dev->dev.parent = &client->dev;
+
+ __set_bit(EV_ABS, input_dev->evbit);
+ __set_bit(EV_KEY, input_dev->evbit);
+ __set_bit(BTN_TOUCH, input_dev->keybit);
+ input_set_abs_params(input_dev, ABS_X, 0, MCS5000_MAX_XC, 0, 0);
+ input_set_abs_params(input_dev, ABS_Y, 0, MCS5000_MAX_YC, 0, 0);
+
+ input_set_drvdata(input_dev, data);
+
+ if (data->platform_data->cfg_pin)
+ data->platform_data->cfg_pin();
+
+ ret = request_threaded_irq(client->irq, NULL, mcs5000_ts_interrupt,
+ IRQF_TRIGGER_LOW | IRQF_ONESHOT, "mcs5000_ts", data);
+
+ if (ret < 0) {
+ dev_err(&client->dev, "Failed to register interrupt\n");
+ goto err_free_mem;
+ }
+
+ ret = input_register_device(data->input_dev);
+ if (ret < 0)
+ goto err_free_irq;
+
+ mcs5000_ts_phys_init(data);
+ i2c_set_clientdata(client, data);
+
+ return 0;
+
+err_free_irq:
+ free_irq(client->irq, data);
+err_free_mem:
+ input_free_device(input_dev);
+ kfree(data);
+ return ret;
+}
+
+static int __devexit mcs5000_ts_remove(struct i2c_client *client)
+{
+ struct mcs5000_ts_data *data = i2c_get_clientdata(client);
+
+ free_irq(client->irq, data);
+ input_unregister_device(data->input_dev);
+ kfree(data);
+
+ return 0;
+}
+
+#ifdef CONFIG_PM
+static int mcs5000_ts_suspend(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+
+ /* Touch sleep mode */
+ i2c_smbus_write_byte_data(client, MCS5000_TS_OP_MODE, OP_MODE_SLEEP);
+
+ return 0;
+}
+
+static int mcs5000_ts_resume(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct mcs5000_ts_data *data = i2c_get_clientdata(client);
+
+ mcs5000_ts_phys_init(data);
+
+ return 0;
+}
+
+static SIMPLE_DEV_PM_OPS(mcs5000_ts_pm, mcs5000_ts_suspend, mcs5000_ts_resume);
+#endif
+
+static const struct i2c_device_id mcs5000_ts_id[] = {
+ { "mcs5000_ts", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, mcs5000_ts_id);
+
+static struct i2c_driver mcs5000_ts_driver = {
+ .probe = mcs5000_ts_probe,
+ .remove = __devexit_p(mcs5000_ts_remove),
+ .driver = {
+ .name = "mcs5000_ts",
+#ifdef CONFIG_PM
+ .pm = &mcs5000_ts_pm,
+#endif
+ },
+ .id_table = mcs5000_ts_id,
+};
+
+static int __init mcs5000_ts_init(void)
+{
+ return i2c_add_driver(&mcs5000_ts_driver);
+}
+
+static void __exit mcs5000_ts_exit(void)
+{
+ i2c_del_driver(&mcs5000_ts_driver);
+}
+
+module_init(mcs5000_ts_init);
+module_exit(mcs5000_ts_exit);
+
+/* Module information */
+MODULE_AUTHOR("Joonyoung Shim <jy0922.shim@samsung.com>");
+MODULE_DESCRIPTION("Touchscreen driver for MELFAS MCS-5000 controller");
+MODULE_LICENSE("GPL");
diff --git a/drivers/input/touchscreen/migor_ts.c b/drivers/input/touchscreen/migor_ts.c
new file mode 100644
index 0000000..5803bd0
--- /dev/null
+++ b/drivers/input/touchscreen/migor_ts.c
@@ -0,0 +1,285 @@
+/*
+ * Touch Screen driver for Renesas MIGO-R Platform
+ *
+ * Copyright (c) 2008 Magnus Damm
+ * Copyright (c) 2007 Ujjwal Pande <ujjwal@kenati.com>,
+ * Kenati Technologies Pvt Ltd.
+ *
+ * This file is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This file is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/input.h>
+#include <linux/interrupt.h>
+#include <linux/pm.h>
+#include <linux/slab.h>
+#include <asm/io.h>
+#include <linux/i2c.h>
+#include <linux/timer.h>
+
+#define EVENT_PENDOWN 1
+#define EVENT_REPEAT 2
+#define EVENT_PENUP 3
+
+struct migor_ts_priv {
+ struct i2c_client *client;
+ struct input_dev *input;
+ struct delayed_work work;
+ int irq;
+};
+
+static const u_int8_t migor_ts_ena_seq[17] = { 0x33, 0x22, 0x11,
+ 0x01, 0x06, 0x07, };
+static const u_int8_t migor_ts_dis_seq[17] = { };
+
+static void migor_ts_poscheck(struct work_struct *work)
+{
+ struct migor_ts_priv *priv = container_of(work,
+ struct migor_ts_priv,
+ work.work);
+ unsigned short xpos, ypos;
+ unsigned char event;
+ u_int8_t buf[16];
+
+ memset(buf, 0, sizeof(buf));
+
+ /* Set Index 0 */
+ buf[0] = 0;
+ if (i2c_master_send(priv->client, buf, 1) != 1) {
+ dev_err(&priv->client->dev, "Unable to write i2c index\n");
+ goto out;
+ }
+
+ /* Now do Page Read */
+ if (i2c_master_recv(priv->client, buf, sizeof(buf)) != sizeof(buf)) {
+ dev_err(&priv->client->dev, "Unable to read i2c page\n");
+ goto out;
+ }
+
+ ypos = ((buf[9] & 0x03) << 8 | buf[8]);
+ xpos = ((buf[11] & 0x03) << 8 | buf[10]);
+ event = buf[12];
+
+ if (event == EVENT_PENDOWN || event == EVENT_REPEAT) {
+ input_report_key(priv->input, BTN_TOUCH, 1);
+ input_report_abs(priv->input, ABS_X, ypos); /*X-Y swap*/
+ input_report_abs(priv->input, ABS_Y, xpos);
+ input_sync(priv->input);
+ } else if (event == EVENT_PENUP) {
+ input_report_key(priv->input, BTN_TOUCH, 0);
+ input_sync(priv->input);
+ }
+ out:
+ enable_irq(priv->irq);
+}
+
+static irqreturn_t migor_ts_isr(int irq, void *dev_id)
+{
+ struct migor_ts_priv *priv = dev_id;
+
+ /* the touch screen controller chip is hooked up to the cpu
+ * using i2c and a single interrupt line. the interrupt line
+ * is pulled low whenever someone taps the screen. to deassert
+ * the interrupt line we need to acknowledge the interrupt by
+ * communicating with the controller over the slow i2c bus.
+ *
+ * we can't acknowledge from interrupt context since the i2c
+ * bus controller may sleep, so we just disable the interrupt
+ * here and handle the acknowledge using delayed work.
+ */
+
+ disable_irq_nosync(irq);
+ schedule_delayed_work(&priv->work, HZ / 20);
+
+ return IRQ_HANDLED;
+}
+
+
+static int migor_ts_open(struct input_dev *dev)
+{
+ struct migor_ts_priv *priv = input_get_drvdata(dev);
+ struct i2c_client *client = priv->client;
+ int count;
+
+ /* enable controller */
+ count = i2c_master_send(client, migor_ts_ena_seq,
+ sizeof(migor_ts_ena_seq));
+ if (count != sizeof(migor_ts_ena_seq)) {
+ dev_err(&client->dev, "Unable to enable touchscreen.\n");
+ return -ENXIO;
+ }
+
+ return 0;
+}
+
+static void migor_ts_close(struct input_dev *dev)
+{
+ struct migor_ts_priv *priv = input_get_drvdata(dev);
+ struct i2c_client *client = priv->client;
+
+ disable_irq(priv->irq);
+
+ /* cancel pending work and wait for migor_ts_poscheck() to finish */
+ if (cancel_delayed_work_sync(&priv->work)) {
+ /*
+ * if migor_ts_poscheck was canceled we need to enable IRQ
+ * here to balance disable done in migor_ts_isr.
+ */
+ enable_irq(priv->irq);
+ }
+
+ /* disable controller */
+ i2c_master_send(client, migor_ts_dis_seq, sizeof(migor_ts_dis_seq));
+
+ enable_irq(priv->irq);
+}
+
+static int migor_ts_probe(struct i2c_client *client,
+ const struct i2c_device_id *idp)
+{
+ struct migor_ts_priv *priv;
+ struct input_dev *input;
+ int error;
+
+ priv = kzalloc(sizeof(*priv), GFP_KERNEL);
+ if (!priv) {
+ dev_err(&client->dev, "failed to allocate driver data\n");
+ error = -ENOMEM;
+ goto err0;
+ }
+
+ dev_set_drvdata(&client->dev, priv);
+
+ input = input_allocate_device();
+ if (!input) {
+ dev_err(&client->dev, "Failed to allocate input device.\n");
+ error = -ENOMEM;
+ goto err1;
+ }
+
+ input->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
+ input->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH);
+
+ input_set_abs_params(input, ABS_X, 95, 955, 0, 0);
+ input_set_abs_params(input, ABS_Y, 85, 935, 0, 0);
+
+ input->name = client->name;
+ input->id.bustype = BUS_I2C;
+ input->dev.parent = &client->dev;
+
+ input->open = migor_ts_open;
+ input->close = migor_ts_close;
+
+ input_set_drvdata(input, priv);
+
+ priv->client = client;
+ priv->input = input;
+ INIT_DELAYED_WORK(&priv->work, migor_ts_poscheck);
+ priv->irq = client->irq;
+
+ error = input_register_device(input);
+ if (error)
+ goto err1;
+
+ error = request_irq(priv->irq, migor_ts_isr, IRQF_TRIGGER_LOW,
+ client->name, priv);
+ if (error) {
+ dev_err(&client->dev, "Unable to request touchscreen IRQ.\n");
+ goto err2;
+ }
+
+ device_init_wakeup(&client->dev, 1);
+ return 0;
+
+ err2:
+ input_unregister_device(input);
+ input = NULL; /* so we dont try to free it below */
+ err1:
+ input_free_device(input);
+ kfree(priv);
+ err0:
+ dev_set_drvdata(&client->dev, NULL);
+ return error;
+}
+
+static int migor_ts_remove(struct i2c_client *client)
+{
+ struct migor_ts_priv *priv = dev_get_drvdata(&client->dev);
+
+ free_irq(priv->irq, priv);
+ input_unregister_device(priv->input);
+ kfree(priv);
+
+ dev_set_drvdata(&client->dev, NULL);
+
+ return 0;
+}
+
+static int migor_ts_suspend(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct migor_ts_priv *priv = dev_get_drvdata(&client->dev);
+
+ if (device_may_wakeup(&client->dev))
+ enable_irq_wake(priv->irq);
+
+ return 0;
+}
+
+static int migor_ts_resume(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct migor_ts_priv *priv = dev_get_drvdata(&client->dev);
+
+ if (device_may_wakeup(&client->dev))
+ disable_irq_wake(priv->irq);
+
+ return 0;
+}
+
+static SIMPLE_DEV_PM_OPS(migor_ts_pm, migor_ts_suspend, migor_ts_resume);
+
+static const struct i2c_device_id migor_ts_id[] = {
+ { "migor_ts", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, migor_ts);
+
+static struct i2c_driver migor_ts_driver = {
+ .driver = {
+ .name = "migor_ts",
+ .pm = &migor_ts_pm,
+ },
+ .probe = migor_ts_probe,
+ .remove = migor_ts_remove,
+ .id_table = migor_ts_id,
+};
+
+static int __init migor_ts_init(void)
+{
+ return i2c_add_driver(&migor_ts_driver);
+}
+
+static void __exit migor_ts_exit(void)
+{
+ i2c_del_driver(&migor_ts_driver);
+}
+
+MODULE_DESCRIPTION("MigoR Touchscreen driver");
+MODULE_AUTHOR("Magnus Damm <damm@opensource.se>");
+MODULE_LICENSE("GPL");
+
+module_init(migor_ts_init);
+module_exit(migor_ts_exit);
diff --git a/drivers/input/touchscreen/mk712.c b/drivers/input/touchscreen/mk712.c
new file mode 100644
index 0000000..36e57de
--- /dev/null
+++ b/drivers/input/touchscreen/mk712.c
@@ -0,0 +1,219 @@
+/*
+ * ICS MK712 touchscreen controller driver
+ *
+ * Copyright (c) 1999-2002 Transmeta Corporation
+ * Copyright (c) 2005 Rick Koch <n1gp@hotmail.com>
+ * Copyright (c) 2005 Vojtech Pavlik <vojtech@suse.cz>
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ */
+
+/*
+ * This driver supports the ICS MicroClock MK712 TouchScreen controller,
+ * found in Gateway AOL Connected Touchpad computers.
+ *
+ * Documentation for ICS MK712 can be found at:
+ * http://www.idt.com/products/getDoc.cfm?docID=18713923
+ */
+
+/*
+ * 1999-12-18: original version, Daniel Quinlan
+ * 1999-12-19: added anti-jitter code, report pen-up events, fixed mk712_poll
+ * to use queue_empty, Nathan Laredo
+ * 1999-12-20: improved random point rejection, Nathan Laredo
+ * 2000-01-05: checked in new anti-jitter code, changed mouse protocol, fixed
+ * queue code, added module options, other fixes, Daniel Quinlan
+ * 2002-03-15: Clean up for kernel merge <alan@redhat.com>
+ * Fixed multi open race, fixed memory checks, fixed resource
+ * allocation, fixed close/powerdown bug, switched to new init
+ * 2005-01-18: Ported to 2.6 from 2.4.28, Rick Koch
+ * 2005-02-05: Rewritten for the input layer, Vojtech Pavlik
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/errno.h>
+#include <linux/delay.h>
+#include <linux/ioport.h>
+#include <linux/interrupt.h>
+#include <linux/input.h>
+#include <asm/io.h>
+
+MODULE_AUTHOR("Daniel Quinlan <quinlan@pathname.com>, Vojtech Pavlik <vojtech@suse.cz>");
+MODULE_DESCRIPTION("ICS MicroClock MK712 TouchScreen driver");
+MODULE_LICENSE("GPL");
+
+static unsigned int mk712_io = 0x260; /* Also 0x200, 0x208, 0x300 */
+module_param_named(io, mk712_io, uint, 0);
+MODULE_PARM_DESC(io, "I/O base address of MK712 touchscreen controller");
+
+static unsigned int mk712_irq = 10; /* Also 12, 14, 15 */
+module_param_named(irq, mk712_irq, uint, 0);
+MODULE_PARM_DESC(irq, "IRQ of MK712 touchscreen controller");
+
+/* eight 8-bit registers */
+#define MK712_STATUS 0
+#define MK712_X 2
+#define MK712_Y 4
+#define MK712_CONTROL 6
+#define MK712_RATE 7
+
+/* status */
+#define MK712_STATUS_TOUCH 0x10
+#define MK712_CONVERSION_COMPLETE 0x80
+
+/* control */
+#define MK712_ENABLE_INT 0x01
+#define MK712_INT_ON_CONVERSION_COMPLETE 0x02
+#define MK712_INT_ON_CHANGE_IN_TOUCH_STATUS 0x04
+#define MK712_ENABLE_PERIODIC_CONVERSIONS 0x10
+#define MK712_READ_ONE_POINT 0x20
+#define MK712_POWERUP 0x40
+
+static struct input_dev *mk712_dev;
+static DEFINE_SPINLOCK(mk712_lock);
+
+static irqreturn_t mk712_interrupt(int irq, void *dev_id)
+{
+ unsigned char status;
+ static int debounce = 1;
+ static unsigned short last_x;
+ static unsigned short last_y;
+
+ spin_lock(&mk712_lock);
+
+ status = inb(mk712_io + MK712_STATUS);
+
+ if (~status & MK712_CONVERSION_COMPLETE) {
+ debounce = 1;
+ goto end;
+ }
+
+ if (~status & MK712_STATUS_TOUCH) {
+ debounce = 1;
+ input_report_key(mk712_dev, BTN_TOUCH, 0);
+ goto end;
+ }
+
+ if (debounce) {
+ debounce = 0;
+ goto end;
+ }
+
+ input_report_key(mk712_dev, BTN_TOUCH, 1);
+ input_report_abs(mk712_dev, ABS_X, last_x);
+ input_report_abs(mk712_dev, ABS_Y, last_y);
+
+ end:
+ last_x = inw(mk712_io + MK712_X) & 0x0fff;
+ last_y = inw(mk712_io + MK712_Y) & 0x0fff;
+ input_sync(mk712_dev);
+ spin_unlock(&mk712_lock);
+ return IRQ_HANDLED;
+}
+
+static int mk712_open(struct input_dev *dev)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&mk712_lock, flags);
+
+ outb(0, mk712_io + MK712_CONTROL); /* Reset */
+
+ outb(MK712_ENABLE_INT | MK712_INT_ON_CONVERSION_COMPLETE |
+ MK712_INT_ON_CHANGE_IN_TOUCH_STATUS |
+ MK712_ENABLE_PERIODIC_CONVERSIONS |
+ MK712_POWERUP, mk712_io + MK712_CONTROL);
+
+ outb(10, mk712_io + MK712_RATE); /* 187 points per second */
+
+ spin_unlock_irqrestore(&mk712_lock, flags);
+
+ return 0;
+}
+
+static void mk712_close(struct input_dev *dev)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&mk712_lock, flags);
+
+ outb(0, mk712_io + MK712_CONTROL);
+
+ spin_unlock_irqrestore(&mk712_lock, flags);
+}
+
+static int __init mk712_init(void)
+{
+ int err;
+
+ if (!request_region(mk712_io, 8, "mk712")) {
+ printk(KERN_WARNING "mk712: unable to get IO region\n");
+ return -ENODEV;
+ }
+
+ outb(0, mk712_io + MK712_CONTROL);
+
+ if ((inw(mk712_io + MK712_X) & 0xf000) || /* Sanity check */
+ (inw(mk712_io + MK712_Y) & 0xf000) ||
+ (inw(mk712_io + MK712_STATUS) & 0xf333)) {
+ printk(KERN_WARNING "mk712: device not present\n");
+ err = -ENODEV;
+ goto fail1;
+ }
+
+ mk712_dev = input_allocate_device();
+ if (!mk712_dev) {
+ printk(KERN_ERR "mk712: not enough memory\n");
+ err = -ENOMEM;
+ goto fail1;
+ }
+
+ mk712_dev->name = "ICS MicroClock MK712 TouchScreen";
+ mk712_dev->phys = "isa0260/input0";
+ mk712_dev->id.bustype = BUS_ISA;
+ mk712_dev->id.vendor = 0x0005;
+ mk712_dev->id.product = 0x0001;
+ mk712_dev->id.version = 0x0100;
+
+ mk712_dev->open = mk712_open;
+ mk712_dev->close = mk712_close;
+
+ mk712_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
+ mk712_dev->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH);
+ input_set_abs_params(mk712_dev, ABS_X, 0, 0xfff, 88, 0);
+ input_set_abs_params(mk712_dev, ABS_Y, 0, 0xfff, 88, 0);
+
+ if (request_irq(mk712_irq, mk712_interrupt, 0, "mk712", mk712_dev)) {
+ printk(KERN_WARNING "mk712: unable to get IRQ\n");
+ err = -EBUSY;
+ goto fail1;
+ }
+
+ err = input_register_device(mk712_dev);
+ if (err)
+ goto fail2;
+
+ return 0;
+
+ fail2: free_irq(mk712_irq, mk712_dev);
+ fail1: input_free_device(mk712_dev);
+ release_region(mk712_io, 8);
+ return err;
+}
+
+static void __exit mk712_exit(void)
+{
+ input_unregister_device(mk712_dev);
+ free_irq(mk712_irq, mk712_dev);
+ release_region(mk712_io, 8);
+}
+
+module_init(mk712_init);
+module_exit(mk712_exit);
diff --git a/drivers/input/touchscreen/mtouch.c b/drivers/input/touchscreen/mtouch.c
new file mode 100644
index 0000000..9077228
--- /dev/null
+++ b/drivers/input/touchscreen/mtouch.c
@@ -0,0 +1,220 @@
+/*
+ * MicroTouch (3M) serial touchscreen driver
+ *
+ * Copyright (c) 2004 Vojtech Pavlik
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ */
+
+/*
+ * 2005/02/19 Dan Streetman <ddstreet@ieee.org>
+ * Copied elo.c and edited for MicroTouch protocol
+ */
+
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/input.h>
+#include <linux/serio.h>
+#include <linux/init.h>
+
+#define DRIVER_DESC "MicroTouch serial touchscreen driver"
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+/*
+ * Definitions & global arrays.
+ */
+
+#define MTOUCH_FORMAT_TABLET_STATUS_BIT 0x80
+#define MTOUCH_FORMAT_TABLET_TOUCH_BIT 0x40
+#define MTOUCH_FORMAT_TABLET_LENGTH 5
+#define MTOUCH_RESPONSE_BEGIN_BYTE 0x01
+#define MTOUCH_RESPONSE_END_BYTE 0x0d
+
+/* todo: check specs for max length of all responses */
+#define MTOUCH_MAX_LENGTH 16
+
+#define MTOUCH_MIN_XC 0
+#define MTOUCH_MAX_XC 0x3fff
+#define MTOUCH_MIN_YC 0
+#define MTOUCH_MAX_YC 0x3fff
+
+#define MTOUCH_GET_XC(data) (((data[2])<<7) | data[1])
+#define MTOUCH_GET_YC(data) (((data[4])<<7) | data[3])
+#define MTOUCH_GET_TOUCHED(data) (MTOUCH_FORMAT_TABLET_TOUCH_BIT & data[0])
+
+/*
+ * Per-touchscreen data.
+ */
+
+struct mtouch {
+ struct input_dev *dev;
+ struct serio *serio;
+ int idx;
+ unsigned char data[MTOUCH_MAX_LENGTH];
+ char phys[32];
+};
+
+static void mtouch_process_format_tablet(struct mtouch *mtouch)
+{
+ struct input_dev *dev = mtouch->dev;
+
+ if (MTOUCH_FORMAT_TABLET_LENGTH == ++mtouch->idx) {
+ input_report_abs(dev, ABS_X, MTOUCH_GET_XC(mtouch->data));
+ input_report_abs(dev, ABS_Y, MTOUCH_MAX_YC - MTOUCH_GET_YC(mtouch->data));
+ input_report_key(dev, BTN_TOUCH, MTOUCH_GET_TOUCHED(mtouch->data));
+ input_sync(dev);
+
+ mtouch->idx = 0;
+ }
+}
+
+static void mtouch_process_response(struct mtouch *mtouch)
+{
+ if (MTOUCH_RESPONSE_END_BYTE == mtouch->data[mtouch->idx++]) {
+ /* FIXME - process response */
+ mtouch->idx = 0;
+ } else if (MTOUCH_MAX_LENGTH == mtouch->idx) {
+ printk(KERN_ERR "mtouch.c: too many response bytes\n");
+ mtouch->idx = 0;
+ }
+}
+
+static irqreturn_t mtouch_interrupt(struct serio *serio,
+ unsigned char data, unsigned int flags)
+{
+ struct mtouch* mtouch = serio_get_drvdata(serio);
+
+ mtouch->data[mtouch->idx] = data;
+
+ if (MTOUCH_FORMAT_TABLET_STATUS_BIT & mtouch->data[0])
+ mtouch_process_format_tablet(mtouch);
+ else if (MTOUCH_RESPONSE_BEGIN_BYTE == mtouch->data[0])
+ mtouch_process_response(mtouch);
+ else
+ printk(KERN_DEBUG "mtouch.c: unknown/unsynchronized data from device, byte %x\n",mtouch->data[0]);
+
+ return IRQ_HANDLED;
+}
+
+/*
+ * mtouch_disconnect() is the opposite of mtouch_connect()
+ */
+
+static void mtouch_disconnect(struct serio *serio)
+{
+ struct mtouch* mtouch = serio_get_drvdata(serio);
+
+ input_get_device(mtouch->dev);
+ input_unregister_device(mtouch->dev);
+ serio_close(serio);
+ serio_set_drvdata(serio, NULL);
+ input_put_device(mtouch->dev);
+ kfree(mtouch);
+}
+
+/*
+ * mtouch_connect() is the routine that is called when someone adds a
+ * new serio device that supports MicroTouch (Format Tablet) protocol and registers it as
+ * an input device.
+ */
+
+static int mtouch_connect(struct serio *serio, struct serio_driver *drv)
+{
+ struct mtouch *mtouch;
+ struct input_dev *input_dev;
+ int err;
+
+ mtouch = kzalloc(sizeof(struct mtouch), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!mtouch || !input_dev) {
+ err = -ENOMEM;
+ goto fail1;
+ }
+
+ mtouch->serio = serio;
+ mtouch->dev = input_dev;
+ snprintf(mtouch->phys, sizeof(mtouch->phys), "%s/input0", serio->phys);
+
+ input_dev->name = "MicroTouch Serial TouchScreen";
+ input_dev->phys = mtouch->phys;
+ input_dev->id.bustype = BUS_RS232;
+ input_dev->id.vendor = SERIO_MICROTOUCH;
+ input_dev->id.product = 0;
+ input_dev->id.version = 0x0100;
+ input_dev->dev.parent = &serio->dev;
+ input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
+ input_dev->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH);
+ input_set_abs_params(mtouch->dev, ABS_X, MTOUCH_MIN_XC, MTOUCH_MAX_XC, 0, 0);
+ input_set_abs_params(mtouch->dev, ABS_Y, MTOUCH_MIN_YC, MTOUCH_MAX_YC, 0, 0);
+
+ serio_set_drvdata(serio, mtouch);
+
+ err = serio_open(serio, drv);
+ if (err)
+ goto fail2;
+
+ err = input_register_device(mtouch->dev);
+ if (err)
+ goto fail3;
+
+ return 0;
+
+ fail3: serio_close(serio);
+ fail2: serio_set_drvdata(serio, NULL);
+ fail1: input_free_device(input_dev);
+ kfree(mtouch);
+ return err;
+}
+
+/*
+ * The serio driver structure.
+ */
+
+static struct serio_device_id mtouch_serio_ids[] = {
+ {
+ .type = SERIO_RS232,
+ .proto = SERIO_MICROTOUCH,
+ .id = SERIO_ANY,
+ .extra = SERIO_ANY,
+ },
+ { 0 }
+};
+
+MODULE_DEVICE_TABLE(serio, mtouch_serio_ids);
+
+static struct serio_driver mtouch_drv = {
+ .driver = {
+ .name = "mtouch",
+ },
+ .description = DRIVER_DESC,
+ .id_table = mtouch_serio_ids,
+ .interrupt = mtouch_interrupt,
+ .connect = mtouch_connect,
+ .disconnect = mtouch_disconnect,
+};
+
+/*
+ * The functions for inserting/removing us as a module.
+ */
+
+static int __init mtouch_init(void)
+{
+ return serio_register_driver(&mtouch_drv);
+}
+
+static void __exit mtouch_exit(void)
+{
+ serio_unregister_driver(&mtouch_drv);
+}
+
+module_init(mtouch_init);
+module_exit(mtouch_exit);
diff --git a/drivers/input/touchscreen/pcap_ts.c b/drivers/input/touchscreen/pcap_ts.c
new file mode 100644
index 0000000..ea6ef16
--- /dev/null
+++ b/drivers/input/touchscreen/pcap_ts.c
@@ -0,0 +1,272 @@
+/*
+ * Driver for Motorola PCAP2 touchscreen as found in the EZX phone platform.
+ *
+ * Copyright (C) 2006 Harald Welte <laforge@openezx.org>
+ * Copyright (C) 2009 Daniel Ribeiro <drwyrm@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/fs.h>
+#include <linux/string.h>
+#include <linux/slab.h>
+#include <linux/pm.h>
+#include <linux/timer.h>
+#include <linux/interrupt.h>
+#include <linux/platform_device.h>
+#include <linux/input.h>
+#include <linux/mfd/ezx-pcap.h>
+
+struct pcap_ts {
+ struct pcap_chip *pcap;
+ struct input_dev *input;
+ struct delayed_work work;
+ u16 x, y;
+ u16 pressure;
+ u8 read_state;
+};
+
+#define SAMPLE_DELAY 20 /* msecs */
+
+#define X_AXIS_MIN 0
+#define X_AXIS_MAX 1023
+#define Y_AXIS_MAX X_AXIS_MAX
+#define Y_AXIS_MIN X_AXIS_MIN
+#define PRESSURE_MAX X_AXIS_MAX
+#define PRESSURE_MIN X_AXIS_MIN
+
+static void pcap_ts_read_xy(void *data, u16 res[2])
+{
+ struct pcap_ts *pcap_ts = data;
+
+ switch (pcap_ts->read_state) {
+ case PCAP_ADC_TS_M_PRESSURE:
+ /* pressure reading is unreliable */
+ if (res[0] > PRESSURE_MIN && res[0] < PRESSURE_MAX)
+ pcap_ts->pressure = res[0];
+ pcap_ts->read_state = PCAP_ADC_TS_M_XY;
+ schedule_delayed_work(&pcap_ts->work, 0);
+ break;
+ case PCAP_ADC_TS_M_XY:
+ pcap_ts->y = res[0];
+ pcap_ts->x = res[1];
+ if (pcap_ts->x <= X_AXIS_MIN || pcap_ts->x >= X_AXIS_MAX ||
+ pcap_ts->y <= Y_AXIS_MIN || pcap_ts->y >= Y_AXIS_MAX) {
+ /* pen has been released */
+ input_report_abs(pcap_ts->input, ABS_PRESSURE, 0);
+ input_report_key(pcap_ts->input, BTN_TOUCH, 0);
+
+ pcap_ts->read_state = PCAP_ADC_TS_M_STANDBY;
+ schedule_delayed_work(&pcap_ts->work, 0);
+ } else {
+ /* pen is touching the screen */
+ input_report_abs(pcap_ts->input, ABS_X, pcap_ts->x);
+ input_report_abs(pcap_ts->input, ABS_Y, pcap_ts->y);
+ input_report_key(pcap_ts->input, BTN_TOUCH, 1);
+ input_report_abs(pcap_ts->input, ABS_PRESSURE,
+ pcap_ts->pressure);
+
+ /* switch back to pressure read mode */
+ pcap_ts->read_state = PCAP_ADC_TS_M_PRESSURE;
+ schedule_delayed_work(&pcap_ts->work,
+ msecs_to_jiffies(SAMPLE_DELAY));
+ }
+ input_sync(pcap_ts->input);
+ break;
+ default:
+ dev_warn(&pcap_ts->input->dev,
+ "pcap_ts: Warning, unhandled read_state %d\n",
+ pcap_ts->read_state);
+ break;
+ }
+}
+
+static void pcap_ts_work(struct work_struct *work)
+{
+ struct delayed_work *dw = container_of(work, struct delayed_work, work);
+ struct pcap_ts *pcap_ts = container_of(dw, struct pcap_ts, work);
+ u8 ch[2];
+
+ pcap_set_ts_bits(pcap_ts->pcap,
+ pcap_ts->read_state << PCAP_ADC_TS_M_SHIFT);
+
+ if (pcap_ts->read_state == PCAP_ADC_TS_M_STANDBY)
+ return;
+
+ /* start adc conversion */
+ ch[0] = PCAP_ADC_CH_TS_X1;
+ ch[1] = PCAP_ADC_CH_TS_Y1;
+ pcap_adc_async(pcap_ts->pcap, PCAP_ADC_BANK_1, 0, ch,
+ pcap_ts_read_xy, pcap_ts);
+}
+
+static irqreturn_t pcap_ts_event_touch(int pirq, void *data)
+{
+ struct pcap_ts *pcap_ts = data;
+
+ if (pcap_ts->read_state == PCAP_ADC_TS_M_STANDBY) {
+ pcap_ts->read_state = PCAP_ADC_TS_M_PRESSURE;
+ schedule_delayed_work(&pcap_ts->work, 0);
+ }
+ return IRQ_HANDLED;
+}
+
+static int pcap_ts_open(struct input_dev *dev)
+{
+ struct pcap_ts *pcap_ts = input_get_drvdata(dev);
+
+ pcap_ts->read_state = PCAP_ADC_TS_M_STANDBY;
+ schedule_delayed_work(&pcap_ts->work, 0);
+
+ return 0;
+}
+
+static void pcap_ts_close(struct input_dev *dev)
+{
+ struct pcap_ts *pcap_ts = input_get_drvdata(dev);
+
+ cancel_delayed_work_sync(&pcap_ts->work);
+
+ pcap_ts->read_state = PCAP_ADC_TS_M_NONTS;
+ pcap_set_ts_bits(pcap_ts->pcap,
+ pcap_ts->read_state << PCAP_ADC_TS_M_SHIFT);
+}
+
+static int __devinit pcap_ts_probe(struct platform_device *pdev)
+{
+ struct input_dev *input_dev;
+ struct pcap_ts *pcap_ts;
+ int err = -ENOMEM;
+
+ pcap_ts = kzalloc(sizeof(*pcap_ts), GFP_KERNEL);
+ if (!pcap_ts)
+ return err;
+
+ pcap_ts->pcap = dev_get_drvdata(pdev->dev.parent);
+ platform_set_drvdata(pdev, pcap_ts);
+
+ input_dev = input_allocate_device();
+ if (!input_dev)
+ goto fail;
+
+ INIT_DELAYED_WORK(&pcap_ts->work, pcap_ts_work);
+
+ pcap_ts->read_state = PCAP_ADC_TS_M_NONTS;
+ pcap_set_ts_bits(pcap_ts->pcap,
+ pcap_ts->read_state << PCAP_ADC_TS_M_SHIFT);
+
+ pcap_ts->input = input_dev;
+ input_set_drvdata(input_dev, pcap_ts);
+
+ input_dev->name = "pcap-touchscreen";
+ input_dev->phys = "pcap_ts/input0";
+ input_dev->id.bustype = BUS_HOST;
+ input_dev->id.vendor = 0x0001;
+ input_dev->id.product = 0x0002;
+ input_dev->id.version = 0x0100;
+ input_dev->dev.parent = &pdev->dev;
+ input_dev->open = pcap_ts_open;
+ input_dev->close = pcap_ts_close;
+
+ input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
+ input_dev->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH);
+ input_set_abs_params(input_dev, ABS_X, X_AXIS_MIN, X_AXIS_MAX, 0, 0);
+ input_set_abs_params(input_dev, ABS_Y, Y_AXIS_MIN, Y_AXIS_MAX, 0, 0);
+ input_set_abs_params(input_dev, ABS_PRESSURE, PRESSURE_MIN,
+ PRESSURE_MAX, 0, 0);
+
+ err = input_register_device(pcap_ts->input);
+ if (err)
+ goto fail_allocate;
+
+ err = request_irq(pcap_to_irq(pcap_ts->pcap, PCAP_IRQ_TS),
+ pcap_ts_event_touch, 0, "Touch Screen", pcap_ts);
+ if (err)
+ goto fail_register;
+
+ return 0;
+
+fail_register:
+ input_unregister_device(input_dev);
+ goto fail;
+fail_allocate:
+ input_free_device(input_dev);
+fail:
+ kfree(pcap_ts);
+
+ return err;
+}
+
+static int __devexit pcap_ts_remove(struct platform_device *pdev)
+{
+ struct pcap_ts *pcap_ts = platform_get_drvdata(pdev);
+
+ free_irq(pcap_to_irq(pcap_ts->pcap, PCAP_IRQ_TS), pcap_ts);
+ cancel_delayed_work_sync(&pcap_ts->work);
+
+ input_unregister_device(pcap_ts->input);
+
+ kfree(pcap_ts);
+
+ return 0;
+}
+
+#ifdef CONFIG_PM
+static int pcap_ts_suspend(struct device *dev)
+{
+ struct pcap_ts *pcap_ts = dev_get_drvdata(dev);
+
+ pcap_set_ts_bits(pcap_ts->pcap, PCAP_ADC_TS_REF_LOWPWR);
+ return 0;
+}
+
+static int pcap_ts_resume(struct device *dev)
+{
+ struct pcap_ts *pcap_ts = dev_get_drvdata(dev);
+
+ pcap_set_ts_bits(pcap_ts->pcap,
+ pcap_ts->read_state << PCAP_ADC_TS_M_SHIFT);
+ return 0;
+}
+
+static const struct dev_pm_ops pcap_ts_pm_ops = {
+ .suspend = pcap_ts_suspend,
+ .resume = pcap_ts_resume,
+};
+#define PCAP_TS_PM_OPS (&pcap_ts_pm_ops)
+#else
+#define PCAP_TS_PM_OPS NULL
+#endif
+
+static struct platform_driver pcap_ts_driver = {
+ .probe = pcap_ts_probe,
+ .remove = __devexit_p(pcap_ts_remove),
+ .driver = {
+ .name = "pcap-ts",
+ .owner = THIS_MODULE,
+ .pm = PCAP_TS_PM_OPS,
+ },
+};
+
+static int __init pcap_ts_init(void)
+{
+ return platform_driver_register(&pcap_ts_driver);
+}
+
+static void __exit pcap_ts_exit(void)
+{
+ platform_driver_unregister(&pcap_ts_driver);
+}
+
+module_init(pcap_ts_init);
+module_exit(pcap_ts_exit);
+
+MODULE_DESCRIPTION("Motorola PCAP2 touchscreen driver");
+MODULE_AUTHOR("Daniel Ribeiro / Harald Welte");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:pcap_ts");
diff --git a/drivers/input/touchscreen/penmount.c b/drivers/input/touchscreen/penmount.c
new file mode 100644
index 0000000..4c012fb
--- /dev/null
+++ b/drivers/input/touchscreen/penmount.c
@@ -0,0 +1,335 @@
+/*
+ * Penmount serial touchscreen driver
+ *
+ * Copyright (c) 2006 Rick Koch <n1gp@hotmail.com>
+ * Copyright (c) 2011 John Sung <penmount.touch@gmail.com>
+ *
+ * Based on ELO driver (drivers/input/touchscreen/elo.c)
+ * Copyright (c) 2004 Vojtech Pavlik
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ */
+
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/input.h>
+#include <linux/input/mt.h>
+#include <linux/serio.h>
+#include <linux/init.h>
+
+#define DRIVER_DESC "PenMount serial touchscreen driver"
+
+MODULE_AUTHOR("Rick Koch <n1gp@hotmail.com>");
+MODULE_AUTHOR("John Sung <penmount.touch@gmail.com>");
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+/*
+ * Definitions & global arrays.
+ */
+
+#define PM_MAX_LENGTH 6
+#define PM_MAX_MTSLOT 16
+#define PM_3000_MTSLOT 2
+#define PM_6250_MTSLOT 12
+
+/*
+ * Multi-touch slot
+ */
+
+struct mt_slot {
+ unsigned short x, y;
+ bool active; /* is the touch valid? */
+};
+
+/*
+ * Per-touchscreen data.
+ */
+
+struct pm {
+ struct input_dev *dev;
+ struct serio *serio;
+ int idx;
+ unsigned char data[PM_MAX_LENGTH];
+ char phys[32];
+ unsigned char packetsize;
+ unsigned char maxcontacts;
+ struct mt_slot slots[PM_MAX_MTSLOT];
+ void (*parse_packet)(struct pm *);
+};
+
+/*
+ * pm_mtevent() sends mt events and also emulates pointer movement
+ */
+
+static void pm_mtevent(struct pm *pm, struct input_dev *input)
+{
+ int i;
+
+ for (i = 0; i < pm->maxcontacts; ++i) {
+ input_mt_slot(input, i);
+ input_mt_report_slot_state(input, MT_TOOL_FINGER,
+ pm->slots[i].active);
+ if (pm->slots[i].active) {
+ input_event(input, EV_ABS, ABS_MT_POSITION_X, pm->slots[i].x);
+ input_event(input, EV_ABS, ABS_MT_POSITION_Y, pm->slots[i].y);
+ }
+ }
+
+ input_mt_report_pointer_emulation(input, true);
+ input_sync(input);
+}
+
+/*
+ * pm_checkpacket() checks if data packet is valid
+ */
+
+static bool pm_checkpacket(unsigned char *packet)
+{
+ int total = 0;
+ int i;
+
+ for (i = 0; i < 5; i++)
+ total += packet[i];
+
+ return packet[5] == (unsigned char)~(total & 0xff);
+}
+
+static void pm_parse_9000(struct pm *pm)
+{
+ struct input_dev *dev = pm->dev;
+
+ if ((pm->data[0] & 0x80) && pm->packetsize == ++pm->idx) {
+ input_report_abs(dev, ABS_X, pm->data[1] * 128 + pm->data[2]);
+ input_report_abs(dev, ABS_Y, pm->data[3] * 128 + pm->data[4]);
+ input_report_key(dev, BTN_TOUCH, !!(pm->data[0] & 0x40));
+ input_sync(dev);
+ pm->idx = 0;
+ }
+}
+
+static void pm_parse_6000(struct pm *pm)
+{
+ struct input_dev *dev = pm->dev;
+
+ if ((pm->data[0] & 0xbf) == 0x30 && pm->packetsize == ++pm->idx) {
+ if (pm_checkpacket(pm->data)) {
+ input_report_abs(dev, ABS_X,
+ pm->data[2] * 256 + pm->data[1]);
+ input_report_abs(dev, ABS_Y,
+ pm->data[4] * 256 + pm->data[3]);
+ input_report_key(dev, BTN_TOUCH, pm->data[0] & 0x40);
+ input_sync(dev);
+ }
+ pm->idx = 0;
+ }
+}
+
+static void pm_parse_3000(struct pm *pm)
+{
+ struct input_dev *dev = pm->dev;
+
+ if ((pm->data[0] & 0xce) == 0x40 && pm->packetsize == ++pm->idx) {
+ if (pm_checkpacket(pm->data)) {
+ int slotnum = pm->data[0] & 0x0f;
+ pm->slots[slotnum].active = pm->data[0] & 0x30;
+ pm->slots[slotnum].x = pm->data[2] * 256 + pm->data[1];
+ pm->slots[slotnum].y = pm->data[4] * 256 + pm->data[3];
+ pm_mtevent(pm, dev);
+ }
+ pm->idx = 0;
+ }
+}
+
+static void pm_parse_6250(struct pm *pm)
+{
+ struct input_dev *dev = pm->dev;
+
+ if ((pm->data[0] & 0xb0) == 0x30 && pm->packetsize == ++pm->idx) {
+ if (pm_checkpacket(pm->data)) {
+ int slotnum = pm->data[0] & 0x0f;
+ pm->slots[slotnum].active = pm->data[0] & 0x40;
+ pm->slots[slotnum].x = pm->data[2] * 256 + pm->data[1];
+ pm->slots[slotnum].y = pm->data[4] * 256 + pm->data[3];
+ pm_mtevent(pm, dev);
+ }
+ pm->idx = 0;
+ }
+}
+
+static irqreturn_t pm_interrupt(struct serio *serio,
+ unsigned char data, unsigned int flags)
+{
+ struct pm *pm = serio_get_drvdata(serio);
+
+ pm->data[pm->idx] = data;
+
+ pm->parse_packet(pm);
+
+ return IRQ_HANDLED;
+}
+
+/*
+ * pm_disconnect() is the opposite of pm_connect()
+ */
+
+static void pm_disconnect(struct serio *serio)
+{
+ struct pm *pm = serio_get_drvdata(serio);
+
+ serio_close(serio);
+
+ input_unregister_device(pm->dev);
+ kfree(pm);
+
+ serio_set_drvdata(serio, NULL);
+}
+
+/*
+ * pm_connect() is the routine that is called when someone adds a
+ * new serio device that supports PenMount protocol and registers it as
+ * an input device.
+ */
+
+static int pm_connect(struct serio *serio, struct serio_driver *drv)
+{
+ struct pm *pm;
+ struct input_dev *input_dev;
+ int max_x, max_y;
+ int err;
+
+ pm = kzalloc(sizeof(struct pm), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!pm || !input_dev) {
+ err = -ENOMEM;
+ goto fail1;
+ }
+
+ pm->serio = serio;
+ pm->dev = input_dev;
+ snprintf(pm->phys, sizeof(pm->phys), "%s/input0", serio->phys);
+ pm->maxcontacts = 1;
+
+ input_dev->name = "PenMount Serial TouchScreen";
+ input_dev->phys = pm->phys;
+ input_dev->id.bustype = BUS_RS232;
+ input_dev->id.vendor = SERIO_PENMOUNT;
+ input_dev->id.product = 0;
+ input_dev->id.version = 0x0100;
+ input_dev->dev.parent = &serio->dev;
+
+ input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
+ input_dev->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH);
+
+ switch (serio->id.id) {
+ default:
+ case 0:
+ pm->packetsize = 5;
+ pm->parse_packet = pm_parse_9000;
+ input_dev->id.product = 0x9000;
+ max_x = max_y = 0x3ff;
+ break;
+
+ case 1:
+ pm->packetsize = 6;
+ pm->parse_packet = pm_parse_6000;
+ input_dev->id.product = 0x6000;
+ max_x = max_y = 0x3ff;
+ break;
+
+ case 2:
+ pm->packetsize = 6;
+ pm->parse_packet = pm_parse_3000;
+ input_dev->id.product = 0x3000;
+ max_x = max_y = 0x7ff;
+ pm->maxcontacts = PM_3000_MTSLOT;
+ break;
+
+ case 3:
+ pm->packetsize = 6;
+ pm->parse_packet = pm_parse_6250;
+ input_dev->id.product = 0x6250;
+ max_x = max_y = 0x3ff;
+ pm->maxcontacts = PM_6250_MTSLOT;
+ break;
+ }
+
+ input_set_abs_params(pm->dev, ABS_X, 0, max_x, 0, 0);
+ input_set_abs_params(pm->dev, ABS_Y, 0, max_y, 0, 0);
+
+ if (pm->maxcontacts > 1) {
+ input_mt_init_slots(pm->dev, pm->maxcontacts);
+ input_set_abs_params(pm->dev,
+ ABS_MT_POSITION_X, 0, max_x, 0, 0);
+ input_set_abs_params(pm->dev,
+ ABS_MT_POSITION_Y, 0, max_y, 0, 0);
+ }
+
+ serio_set_drvdata(serio, pm);
+
+ err = serio_open(serio, drv);
+ if (err)
+ goto fail2;
+
+ err = input_register_device(pm->dev);
+ if (err)
+ goto fail3;
+
+ return 0;
+
+ fail3: serio_close(serio);
+ fail2: serio_set_drvdata(serio, NULL);
+ fail1: input_free_device(input_dev);
+ kfree(pm);
+ return err;
+}
+
+/*
+ * The serio driver structure.
+ */
+
+static struct serio_device_id pm_serio_ids[] = {
+ {
+ .type = SERIO_RS232,
+ .proto = SERIO_PENMOUNT,
+ .id = SERIO_ANY,
+ .extra = SERIO_ANY,
+ },
+ { 0 }
+};
+
+MODULE_DEVICE_TABLE(serio, pm_serio_ids);
+
+static struct serio_driver pm_drv = {
+ .driver = {
+ .name = "serio-penmount",
+ },
+ .description = DRIVER_DESC,
+ .id_table = pm_serio_ids,
+ .interrupt = pm_interrupt,
+ .connect = pm_connect,
+ .disconnect = pm_disconnect,
+};
+
+/*
+ * The functions for inserting/removing us as a module.
+ */
+
+static int __init pm_init(void)
+{
+ return serio_register_driver(&pm_drv);
+}
+
+static void __exit pm_exit(void)
+{
+ serio_unregister_driver(&pm_drv);
+}
+
+module_init(pm_init);
+module_exit(pm_exit);
diff --git a/drivers/input/touchscreen/s3c2410_ts.c b/drivers/input/touchscreen/s3c2410_ts.c
new file mode 100644
index 0000000..64ce697
--- /dev/null
+++ b/drivers/input/touchscreen/s3c2410_ts.c
@@ -0,0 +1,453 @@
+/*
+ * Samsung S3C24XX touchscreen driver
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the term of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * Copyright 2004 Arnaud Patard <arnaud.patard@rtp-net.org>
+ * Copyright 2008 Ben Dooks <ben-linux@fluff.org>
+ * Copyright 2009 Simtec Electronics <linux@simtec.co.uk>
+ *
+ * Additional work by Herbert Pötzl <herbert@13thfloor.at> and
+ * Harald Welte <laforge@openmoko.org>
+ */
+
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/gpio.h>
+#include <linux/input.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <linux/platform_device.h>
+#include <linux/clk.h>
+#include <linux/io.h>
+
+#include <plat/adc.h>
+#include <plat/regs-adc.h>
+#include <plat/ts.h>
+
+#define TSC_SLEEP (S3C2410_ADCTSC_PULL_UP_DISABLE | S3C2410_ADCTSC_XY_PST(0))
+
+#define INT_DOWN (0)
+#define INT_UP (1 << 8)
+
+#define WAIT4INT (S3C2410_ADCTSC_YM_SEN | \
+ S3C2410_ADCTSC_YP_SEN | \
+ S3C2410_ADCTSC_XP_SEN | \
+ S3C2410_ADCTSC_XY_PST(3))
+
+#define AUTOPST (S3C2410_ADCTSC_YM_SEN | \
+ S3C2410_ADCTSC_YP_SEN | \
+ S3C2410_ADCTSC_XP_SEN | \
+ S3C2410_ADCTSC_AUTO_PST | \
+ S3C2410_ADCTSC_XY_PST(0))
+
+#define FEAT_PEN_IRQ (1 << 0) /* HAS ADCCLRINTPNDNUP */
+
+/* Per-touchscreen data. */
+
+/**
+ * struct s3c2410ts - driver touchscreen state.
+ * @client: The ADC client we registered with the core driver.
+ * @dev: The device we are bound to.
+ * @input: The input device we registered with the input subsystem.
+ * @clock: The clock for the adc.
+ * @io: Pointer to the IO base.
+ * @xp: The accumulated X position data.
+ * @yp: The accumulated Y position data.
+ * @irq_tc: The interrupt number for pen up/down interrupt
+ * @count: The number of samples collected.
+ * @shift: The log2 of the maximum count to read in one go.
+ * @features: The features supported by the TSADC MOdule.
+ */
+struct s3c2410ts {
+ struct s3c_adc_client *client;
+ struct device *dev;
+ struct input_dev *input;
+ struct clk *clock;
+ void __iomem *io;
+ unsigned long xp;
+ unsigned long yp;
+ int irq_tc;
+ int count;
+ int shift;
+ int features;
+};
+
+static struct s3c2410ts ts;
+
+/**
+ * get_down - return the down state of the pen
+ * @data0: The data read from ADCDAT0 register.
+ * @data1: The data read from ADCDAT1 register.
+ *
+ * Return non-zero if both readings show that the pen is down.
+ */
+static inline bool get_down(unsigned long data0, unsigned long data1)
+{
+ /* returns true if both data values show stylus down */
+ return (!(data0 & S3C2410_ADCDAT0_UPDOWN) &&
+ !(data1 & S3C2410_ADCDAT0_UPDOWN));
+}
+
+static void touch_timer_fire(unsigned long data)
+{
+ unsigned long data0;
+ unsigned long data1;
+ bool down;
+
+ data0 = readl(ts.io + S3C2410_ADCDAT0);
+ data1 = readl(ts.io + S3C2410_ADCDAT1);
+
+ down = get_down(data0, data1);
+
+ if (down) {
+ if (ts.count == (1 << ts.shift)) {
+ ts.xp >>= ts.shift;
+ ts.yp >>= ts.shift;
+
+ dev_dbg(ts.dev, "%s: X=%lu, Y=%lu, count=%d\n",
+ __func__, ts.xp, ts.yp, ts.count);
+
+ input_report_abs(ts.input, ABS_X, ts.xp);
+ input_report_abs(ts.input, ABS_Y, ts.yp);
+
+ input_report_key(ts.input, BTN_TOUCH, 1);
+ input_sync(ts.input);
+
+ ts.xp = 0;
+ ts.yp = 0;
+ ts.count = 0;
+ }
+
+ s3c_adc_start(ts.client, 0, 1 << ts.shift);
+ } else {
+ ts.xp = 0;
+ ts.yp = 0;
+ ts.count = 0;
+
+ input_report_key(ts.input, BTN_TOUCH, 0);
+ input_sync(ts.input);
+
+ writel(WAIT4INT | INT_DOWN, ts.io + S3C2410_ADCTSC);
+ }
+}
+
+static DEFINE_TIMER(touch_timer, touch_timer_fire, 0, 0);
+
+/**
+ * stylus_irq - touchscreen stylus event interrupt
+ * @irq: The interrupt number
+ * @dev_id: The device ID.
+ *
+ * Called when the IRQ_TC is fired for a pen up or down event.
+ */
+static irqreturn_t stylus_irq(int irq, void *dev_id)
+{
+ unsigned long data0;
+ unsigned long data1;
+ bool down;
+
+ data0 = readl(ts.io + S3C2410_ADCDAT0);
+ data1 = readl(ts.io + S3C2410_ADCDAT1);
+
+ down = get_down(data0, data1);
+
+ /* TODO we should never get an interrupt with down set while
+ * the timer is running, but maybe we ought to verify that the
+ * timer isn't running anyways. */
+
+ if (down)
+ s3c_adc_start(ts.client, 0, 1 << ts.shift);
+ else
+ dev_dbg(ts.dev, "%s: count=%d\n", __func__, ts.count);
+
+ if (ts.features & FEAT_PEN_IRQ) {
+ /* Clear pen down/up interrupt */
+ writel(0x0, ts.io + S3C64XX_ADCCLRINTPNDNUP);
+ }
+
+ return IRQ_HANDLED;
+}
+
+/**
+ * s3c24xx_ts_conversion - ADC conversion callback
+ * @client: The client that was registered with the ADC core.
+ * @data0: The reading from ADCDAT0.
+ * @data1: The reading from ADCDAT1.
+ * @left: The number of samples left.
+ *
+ * Called when a conversion has finished.
+ */
+static void s3c24xx_ts_conversion(struct s3c_adc_client *client,
+ unsigned data0, unsigned data1,
+ unsigned *left)
+{
+ dev_dbg(ts.dev, "%s: %d,%d\n", __func__, data0, data1);
+
+ ts.xp += data0;
+ ts.yp += data1;
+
+ ts.count++;
+
+ /* From tests, it seems that it is unlikely to get a pen-up
+ * event during the conversion process which means we can
+ * ignore any pen-up events with less than the requisite
+ * count done.
+ *
+ * In several thousand conversions, no pen-ups where detected
+ * before count completed.
+ */
+}
+
+/**
+ * s3c24xx_ts_select - ADC selection callback.
+ * @client: The client that was registered with the ADC core.
+ * @select: The reason for select.
+ *
+ * Called when the ADC core selects (or deslects) us as a client.
+ */
+static void s3c24xx_ts_select(struct s3c_adc_client *client, unsigned select)
+{
+ if (select) {
+ writel(S3C2410_ADCTSC_PULL_UP_DISABLE | AUTOPST,
+ ts.io + S3C2410_ADCTSC);
+ } else {
+ mod_timer(&touch_timer, jiffies+1);
+ writel(WAIT4INT | INT_UP, ts.io + S3C2410_ADCTSC);
+ }
+}
+
+/**
+ * s3c2410ts_probe - device core probe entry point
+ * @pdev: The device we are being bound to.
+ *
+ * Initialise, find and allocate any resources we need to run and then
+ * register with the ADC and input systems.
+ */
+static int __devinit s3c2410ts_probe(struct platform_device *pdev)
+{
+ struct s3c2410_ts_mach_info *info;
+ struct device *dev = &pdev->dev;
+ struct input_dev *input_dev;
+ struct resource *res;
+ int ret = -EINVAL;
+
+ /* Initialise input stuff */
+ memset(&ts, 0, sizeof(struct s3c2410ts));
+
+ ts.dev = dev;
+
+ info = pdev->dev.platform_data;
+ if (!info) {
+ dev_err(dev, "no platform data, cannot attach\n");
+ return -EINVAL;
+ }
+
+ dev_dbg(dev, "initialising touchscreen\n");
+
+ ts.clock = clk_get(dev, "adc");
+ if (IS_ERR(ts.clock)) {
+ dev_err(dev, "cannot get adc clock source\n");
+ return -ENOENT;
+ }
+
+ clk_enable(ts.clock);
+ dev_dbg(dev, "got and enabled clocks\n");
+
+ ts.irq_tc = ret = platform_get_irq(pdev, 0);
+ if (ret < 0) {
+ dev_err(dev, "no resource for interrupt\n");
+ goto err_clk;
+ }
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!res) {
+ dev_err(dev, "no resource for registers\n");
+ ret = -ENOENT;
+ goto err_clk;
+ }
+
+ ts.io = ioremap(res->start, resource_size(res));
+ if (ts.io == NULL) {
+ dev_err(dev, "cannot map registers\n");
+ ret = -ENOMEM;
+ goto err_clk;
+ }
+
+ /* inititalise the gpio */
+ if (info->cfg_gpio)
+ info->cfg_gpio(to_platform_device(ts.dev));
+
+ ts.client = s3c_adc_register(pdev, s3c24xx_ts_select,
+ s3c24xx_ts_conversion, 1);
+ if (IS_ERR(ts.client)) {
+ dev_err(dev, "failed to register adc client\n");
+ ret = PTR_ERR(ts.client);
+ goto err_iomap;
+ }
+
+ /* Initialise registers */
+ if ((info->delay & 0xffff) > 0)
+ writel(info->delay & 0xffff, ts.io + S3C2410_ADCDLY);
+
+ writel(WAIT4INT | INT_DOWN, ts.io + S3C2410_ADCTSC);
+
+ input_dev = input_allocate_device();
+ if (!input_dev) {
+ dev_err(dev, "Unable to allocate the input device !!\n");
+ ret = -ENOMEM;
+ goto err_iomap;
+ }
+
+ ts.input = input_dev;
+ ts.input->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
+ ts.input->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH);
+ input_set_abs_params(ts.input, ABS_X, 0, 0x3FF, 0, 0);
+ input_set_abs_params(ts.input, ABS_Y, 0, 0x3FF, 0, 0);
+
+ ts.input->name = "S3C24XX TouchScreen";
+ ts.input->id.bustype = BUS_HOST;
+ ts.input->id.vendor = 0xDEAD;
+ ts.input->id.product = 0xBEEF;
+ ts.input->id.version = 0x0102;
+
+ ts.shift = info->oversampling_shift;
+ ts.features = platform_get_device_id(pdev)->driver_data;
+
+ ret = request_irq(ts.irq_tc, stylus_irq, 0,
+ "s3c2410_ts_pen", ts.input);
+ if (ret) {
+ dev_err(dev, "cannot get TC interrupt\n");
+ goto err_inputdev;
+ }
+
+ dev_info(dev, "driver attached, registering input device\n");
+
+ /* All went ok, so register to the input system */
+ ret = input_register_device(ts.input);
+ if (ret < 0) {
+ dev_err(dev, "failed to register input device\n");
+ ret = -EIO;
+ goto err_tcirq;
+ }
+
+ return 0;
+
+ err_tcirq:
+ free_irq(ts.irq_tc, ts.input);
+ err_inputdev:
+ input_free_device(ts.input);
+ err_iomap:
+ iounmap(ts.io);
+ err_clk:
+ del_timer_sync(&touch_timer);
+ clk_put(ts.clock);
+ return ret;
+}
+
+/**
+ * s3c2410ts_remove - device core removal entry point
+ * @pdev: The device we are being removed from.
+ *
+ * Free up our state ready to be removed.
+ */
+static int __devexit s3c2410ts_remove(struct platform_device *pdev)
+{
+ free_irq(ts.irq_tc, ts.input);
+ del_timer_sync(&touch_timer);
+
+ clk_disable(ts.clock);
+ clk_put(ts.clock);
+
+ input_unregister_device(ts.input);
+ iounmap(ts.io);
+
+ return 0;
+}
+
+#ifdef CONFIG_PM
+static int s3c2410ts_suspend(struct device *dev)
+{
+ writel(TSC_SLEEP, ts.io + S3C2410_ADCTSC);
+ disable_irq(ts.irq_tc);
+ clk_disable(ts.clock);
+
+ return 0;
+}
+
+static int s3c2410ts_resume(struct device *dev)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ struct s3c2410_ts_mach_info *info = pdev->dev.platform_data;
+
+ clk_enable(ts.clock);
+ enable_irq(ts.irq_tc);
+
+ /* Initialise registers */
+ if ((info->delay & 0xffff) > 0)
+ writel(info->delay & 0xffff, ts.io + S3C2410_ADCDLY);
+
+ writel(WAIT4INT | INT_DOWN, ts.io + S3C2410_ADCTSC);
+
+ return 0;
+}
+
+static struct dev_pm_ops s3c_ts_pmops = {
+ .suspend = s3c2410ts_suspend,
+ .resume = s3c2410ts_resume,
+};
+#endif
+
+static struct platform_device_id s3cts_driver_ids[] = {
+ { "s3c2410-ts", 0 },
+ { "s3c2440-ts", 0 },
+ { "s3c64xx-ts", FEAT_PEN_IRQ },
+ { }
+};
+MODULE_DEVICE_TABLE(platform, s3cts_driver_ids);
+
+static struct platform_driver s3c_ts_driver = {
+ .driver = {
+ .name = "samsung-ts",
+ .owner = THIS_MODULE,
+#ifdef CONFIG_PM
+ .pm = &s3c_ts_pmops,
+#endif
+ },
+ .id_table = s3cts_driver_ids,
+ .probe = s3c2410ts_probe,
+ .remove = __devexit_p(s3c2410ts_remove),
+};
+
+static int __init s3c2410ts_init(void)
+{
+ return platform_driver_register(&s3c_ts_driver);
+}
+
+static void __exit s3c2410ts_exit(void)
+{
+ platform_driver_unregister(&s3c_ts_driver);
+}
+
+module_init(s3c2410ts_init);
+module_exit(s3c2410ts_exit);
+
+MODULE_AUTHOR("Arnaud Patard <arnaud.patard@rtp-net.org>, "
+ "Ben Dooks <ben@simtec.co.uk>, "
+ "Simtec Electronics <linux@simtec.co.uk>");
+MODULE_DESCRIPTION("S3C24XX Touchscreen driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/input/touchscreen/st1232.c b/drivers/input/touchscreen/st1232.c
new file mode 100644
index 0000000..4ab3713
--- /dev/null
+++ b/drivers/input/touchscreen/st1232.c
@@ -0,0 +1,274 @@
+/*
+ * ST1232 Touchscreen Controller Driver
+ *
+ * Copyright (C) 2010 Renesas Solutions Corp.
+ * Tony SIM <chinyeow.sim.xt@renesas.com>
+ *
+ * Using code from:
+ * - android.git.kernel.org: projects/kernel/common.git: synaptics_i2c_rmi.c
+ * Copyright (C) 2007 Google, Inc.
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/delay.h>
+#include <linux/i2c.h>
+#include <linux/input.h>
+#include <linux/interrupt.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/types.h>
+
+#define ST1232_TS_NAME "st1232-ts"
+
+#define MIN_X 0x00
+#define MIN_Y 0x00
+#define MAX_X 0x31f /* (800 - 1) */
+#define MAX_Y 0x1df /* (480 - 1) */
+#define MAX_AREA 0xff
+#define MAX_FINGERS 2
+
+struct st1232_ts_finger {
+ u16 x;
+ u16 y;
+ u8 t;
+ bool is_valid;
+};
+
+struct st1232_ts_data {
+ struct i2c_client *client;
+ struct input_dev *input_dev;
+ struct st1232_ts_finger finger[MAX_FINGERS];
+};
+
+static int st1232_ts_read_data(struct st1232_ts_data *ts)
+{
+ struct st1232_ts_finger *finger = ts->finger;
+ struct i2c_client *client = ts->client;
+ struct i2c_msg msg[2];
+ int error;
+ u8 start_reg;
+ u8 buf[10];
+
+ /* read touchscreen data from ST1232 */
+ msg[0].addr = client->addr;
+ msg[0].flags = 0;
+ msg[0].len = 1;
+ msg[0].buf = &start_reg;
+ start_reg = 0x10;
+
+ msg[1].addr = ts->client->addr;
+ msg[1].flags = I2C_M_RD;
+ msg[1].len = sizeof(buf);
+ msg[1].buf = buf;
+
+ error = i2c_transfer(client->adapter, msg, 2);
+ if (error < 0)
+ return error;
+
+ /* get "valid" bits */
+ finger[0].is_valid = buf[2] >> 7;
+ finger[1].is_valid = buf[5] >> 7;
+
+ /* get xy coordinate */
+ if (finger[0].is_valid) {
+ finger[0].x = ((buf[2] & 0x0070) << 4) | buf[3];
+ finger[0].y = ((buf[2] & 0x0007) << 8) | buf[4];
+ finger[0].t = buf[8];
+ }
+
+ if (finger[1].is_valid) {
+ finger[1].x = ((buf[5] & 0x0070) << 4) | buf[6];
+ finger[1].y = ((buf[5] & 0x0007) << 8) | buf[7];
+ finger[1].t = buf[9];
+ }
+
+ return 0;
+}
+
+static irqreturn_t st1232_ts_irq_handler(int irq, void *dev_id)
+{
+ struct st1232_ts_data *ts = dev_id;
+ struct st1232_ts_finger *finger = ts->finger;
+ struct input_dev *input_dev = ts->input_dev;
+ int count = 0;
+ int i, ret;
+
+ ret = st1232_ts_read_data(ts);
+ if (ret < 0)
+ goto end;
+
+ /* multi touch protocol */
+ for (i = 0; i < MAX_FINGERS; i++) {
+ if (!finger[i].is_valid)
+ continue;
+
+ input_report_abs(input_dev, ABS_MT_TOUCH_MAJOR, finger[i].t);
+ input_report_abs(input_dev, ABS_MT_POSITION_X, finger[i].x);
+ input_report_abs(input_dev, ABS_MT_POSITION_Y, finger[i].y);
+ input_mt_sync(input_dev);
+ count++;
+ }
+
+ /* SYN_MT_REPORT only if no contact */
+ if (!count)
+ input_mt_sync(input_dev);
+
+ /* SYN_REPORT */
+ input_sync(input_dev);
+
+end:
+ return IRQ_HANDLED;
+}
+
+static int __devinit st1232_ts_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct st1232_ts_data *ts;
+ struct input_dev *input_dev;
+ int error;
+
+ if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
+ dev_err(&client->dev, "need I2C_FUNC_I2C\n");
+ return -EIO;
+ }
+
+ if (!client->irq) {
+ dev_err(&client->dev, "no IRQ?\n");
+ return -EINVAL;
+ }
+
+
+ ts = kzalloc(sizeof(struct st1232_ts_data), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!ts || !input_dev) {
+ error = -ENOMEM;
+ goto err_free_mem;
+ }
+
+ ts->client = client;
+ ts->input_dev = input_dev;
+
+ input_dev->name = "st1232-touchscreen";
+ input_dev->id.bustype = BUS_I2C;
+ input_dev->dev.parent = &client->dev;
+
+ __set_bit(EV_SYN, input_dev->evbit);
+ __set_bit(EV_KEY, input_dev->evbit);
+ __set_bit(EV_ABS, input_dev->evbit);
+
+ input_set_abs_params(input_dev, ABS_MT_TOUCH_MAJOR, 0, MAX_AREA, 0, 0);
+ input_set_abs_params(input_dev, ABS_MT_POSITION_X, MIN_X, MAX_X, 0, 0);
+ input_set_abs_params(input_dev, ABS_MT_POSITION_Y, MIN_Y, MAX_Y, 0, 0);
+
+ error = request_threaded_irq(client->irq, NULL, st1232_ts_irq_handler,
+ IRQF_ONESHOT, client->name, ts);
+ if (error) {
+ dev_err(&client->dev, "Failed to register interrupt\n");
+ goto err_free_mem;
+ }
+
+ error = input_register_device(ts->input_dev);
+ if (error) {
+ dev_err(&client->dev, "Unable to register %s input device\n",
+ input_dev->name);
+ goto err_free_irq;
+ }
+
+ i2c_set_clientdata(client, ts);
+ device_init_wakeup(&client->dev, 1);
+
+ return 0;
+
+err_free_irq:
+ free_irq(client->irq, ts);
+err_free_mem:
+ input_free_device(input_dev);
+ kfree(ts);
+ return error;
+}
+
+static int __devexit st1232_ts_remove(struct i2c_client *client)
+{
+ struct st1232_ts_data *ts = i2c_get_clientdata(client);
+
+ device_init_wakeup(&client->dev, 0);
+ free_irq(client->irq, ts);
+ input_unregister_device(ts->input_dev);
+ kfree(ts);
+
+ return 0;
+}
+
+#ifdef CONFIG_PM
+static int st1232_ts_suspend(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+
+ if (device_may_wakeup(&client->dev))
+ enable_irq_wake(client->irq);
+ else
+ disable_irq(client->irq);
+
+ return 0;
+}
+
+static int st1232_ts_resume(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+
+ if (device_may_wakeup(&client->dev))
+ disable_irq_wake(client->irq);
+ else
+ enable_irq(client->irq);
+
+ return 0;
+}
+
+static const struct dev_pm_ops st1232_ts_pm_ops = {
+ .suspend = st1232_ts_suspend,
+ .resume = st1232_ts_resume,
+};
+#endif
+
+static const struct i2c_device_id st1232_ts_id[] = {
+ { ST1232_TS_NAME, 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, st1232_ts_id);
+
+static struct i2c_driver st1232_ts_driver = {
+ .probe = st1232_ts_probe,
+ .remove = __devexit_p(st1232_ts_remove),
+ .id_table = st1232_ts_id,
+ .driver = {
+ .name = ST1232_TS_NAME,
+ .owner = THIS_MODULE,
+#ifdef CONFIG_PM
+ .pm = &st1232_ts_pm_ops,
+#endif
+ },
+};
+
+static int __init st1232_ts_init(void)
+{
+ return i2c_add_driver(&st1232_ts_driver);
+}
+module_init(st1232_ts_init);
+
+static void __exit st1232_ts_exit(void)
+{
+ i2c_del_driver(&st1232_ts_driver);
+}
+module_exit(st1232_ts_exit);
+
+MODULE_AUTHOR("Tony SIM <chinyeow.sim.xt@renesas.com>");
+MODULE_DESCRIPTION("SITRONIX ST1232 Touchscreen Controller Driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/input/touchscreen/stmpe-ts.c b/drivers/input/touchscreen/stmpe-ts.c
new file mode 100644
index 0000000..ae88e13
--- /dev/null
+++ b/drivers/input/touchscreen/stmpe-ts.c
@@ -0,0 +1,400 @@
+/* STMicroelectronics STMPE811 Touchscreen Driver
+ *
+ * (C) 2010 Luotao Fu <l.fu@pengutronix.de>
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/sched.h>
+#include <linux/interrupt.h>
+#include <linux/init.h>
+#include <linux/device.h>
+#include <linux/platform_device.h>
+#include <linux/input.h>
+#include <linux/slab.h>
+#include <linux/delay.h>
+#include <linux/i2c.h>
+#include <linux/workqueue.h>
+
+#include <linux/mfd/stmpe.h>
+
+/* Register layouts and functionalities are identical on all stmpexxx variants
+ * with touchscreen controller
+ */
+#define STMPE_REG_INT_STA 0x0B
+#define STMPE_REG_ADC_CTRL1 0x20
+#define STMPE_REG_ADC_CTRL2 0x21
+#define STMPE_REG_TSC_CTRL 0x40
+#define STMPE_REG_TSC_CFG 0x41
+#define STMPE_REG_FIFO_TH 0x4A
+#define STMPE_REG_FIFO_STA 0x4B
+#define STMPE_REG_FIFO_SIZE 0x4C
+#define STMPE_REG_TSC_DATA_XYZ 0x52
+#define STMPE_REG_TSC_FRACTION_Z 0x56
+#define STMPE_REG_TSC_I_DRIVE 0x58
+
+#define OP_MOD_XYZ 0
+
+#define STMPE_TSC_CTRL_TSC_EN (1<<0)
+
+#define STMPE_FIFO_STA_RESET (1<<0)
+
+#define STMPE_IRQ_TOUCH_DET 0
+
+#define SAMPLE_TIME(x) ((x & 0xf) << 4)
+#define MOD_12B(x) ((x & 0x1) << 3)
+#define REF_SEL(x) ((x & 0x1) << 1)
+#define ADC_FREQ(x) (x & 0x3)
+#define AVE_CTRL(x) ((x & 0x3) << 6)
+#define DET_DELAY(x) ((x & 0x7) << 3)
+#define SETTLING(x) (x & 0x7)
+#define FRACTION_Z(x) (x & 0x7)
+#define I_DRIVE(x) (x & 0x1)
+#define OP_MODE(x) ((x & 0x7) << 1)
+
+#define STMPE_TS_NAME "stmpe-ts"
+#define XY_MASK 0xfff
+
+struct stmpe_touch {
+ struct stmpe *stmpe;
+ struct input_dev *idev;
+ struct delayed_work work;
+ struct device *dev;
+ u8 sample_time;
+ u8 mod_12b;
+ u8 ref_sel;
+ u8 adc_freq;
+ u8 ave_ctrl;
+ u8 touch_det_delay;
+ u8 settling;
+ u8 fraction_z;
+ u8 i_drive;
+};
+
+static int __stmpe_reset_fifo(struct stmpe *stmpe)
+{
+ int ret;
+
+ ret = stmpe_set_bits(stmpe, STMPE_REG_FIFO_STA,
+ STMPE_FIFO_STA_RESET, STMPE_FIFO_STA_RESET);
+ if (ret)
+ return ret;
+
+ return stmpe_set_bits(stmpe, STMPE_REG_FIFO_STA,
+ STMPE_FIFO_STA_RESET, 0);
+}
+
+static void stmpe_work(struct work_struct *work)
+{
+ int int_sta;
+ u32 timeout = 40;
+
+ struct stmpe_touch *ts =
+ container_of(work, struct stmpe_touch, work.work);
+
+ int_sta = stmpe_reg_read(ts->stmpe, STMPE_REG_INT_STA);
+
+ /*
+ * touch_det sometimes get desasserted or just get stuck. This appears
+ * to be a silicon bug, We still have to clearify this with the
+ * manufacture. As a workaround We release the key anyway if the
+ * touch_det keeps coming in after 4ms, while the FIFO contains no value
+ * during the whole time.
+ */
+ while ((int_sta & (1 << STMPE_IRQ_TOUCH_DET)) && (timeout > 0)) {
+ timeout--;
+ int_sta = stmpe_reg_read(ts->stmpe, STMPE_REG_INT_STA);
+ udelay(100);
+ }
+
+ /* reset the FIFO before we report release event */
+ __stmpe_reset_fifo(ts->stmpe);
+
+ input_report_abs(ts->idev, ABS_PRESSURE, 0);
+ input_sync(ts->idev);
+}
+
+static irqreturn_t stmpe_ts_handler(int irq, void *data)
+{
+ u8 data_set[4];
+ int x, y, z;
+ struct stmpe_touch *ts = data;
+
+ /*
+ * Cancel scheduled polling for release if we have new value
+ * available. Wait if the polling is already running.
+ */
+ cancel_delayed_work_sync(&ts->work);
+
+ /*
+ * The FIFO sometimes just crashes and stops generating interrupts. This
+ * appears to be a silicon bug. We still have to clearify this with
+ * the manufacture. As a workaround we disable the TSC while we are
+ * collecting data and flush the FIFO after reading
+ */
+ stmpe_set_bits(ts->stmpe, STMPE_REG_TSC_CTRL,
+ STMPE_TSC_CTRL_TSC_EN, 0);
+
+ stmpe_block_read(ts->stmpe, STMPE_REG_TSC_DATA_XYZ, 4, data_set);
+
+ x = (data_set[0] << 4) | (data_set[1] >> 4);
+ y = ((data_set[1] & 0xf) << 8) | data_set[2];
+ z = data_set[3];
+
+ input_report_abs(ts->idev, ABS_X, x);
+ input_report_abs(ts->idev, ABS_Y, y);
+ input_report_abs(ts->idev, ABS_PRESSURE, z);
+ input_sync(ts->idev);
+
+ /* flush the FIFO after we have read out our values. */
+ __stmpe_reset_fifo(ts->stmpe);
+
+ /* reenable the tsc */
+ stmpe_set_bits(ts->stmpe, STMPE_REG_TSC_CTRL,
+ STMPE_TSC_CTRL_TSC_EN, STMPE_TSC_CTRL_TSC_EN);
+
+ /* start polling for touch_det to detect release */
+ schedule_delayed_work(&ts->work, HZ / 50);
+
+ return IRQ_HANDLED;
+}
+
+static int __devinit stmpe_init_hw(struct stmpe_touch *ts)
+{
+ int ret;
+ u8 adc_ctrl1, adc_ctrl1_mask, tsc_cfg, tsc_cfg_mask;
+ struct stmpe *stmpe = ts->stmpe;
+ struct device *dev = ts->dev;
+
+ ret = stmpe_enable(stmpe, STMPE_BLOCK_TOUCHSCREEN | STMPE_BLOCK_ADC);
+ if (ret) {
+ dev_err(dev, "Could not enable clock for ADC and TS\n");
+ return ret;
+ }
+
+ adc_ctrl1 = SAMPLE_TIME(ts->sample_time) | MOD_12B(ts->mod_12b) |
+ REF_SEL(ts->ref_sel);
+ adc_ctrl1_mask = SAMPLE_TIME(0xff) | MOD_12B(0xff) | REF_SEL(0xff);
+
+ ret = stmpe_set_bits(stmpe, STMPE_REG_ADC_CTRL1,
+ adc_ctrl1_mask, adc_ctrl1);
+ if (ret) {
+ dev_err(dev, "Could not setup ADC\n");
+ return ret;
+ }
+
+ ret = stmpe_set_bits(stmpe, STMPE_REG_ADC_CTRL2,
+ ADC_FREQ(0xff), ADC_FREQ(ts->adc_freq));
+ if (ret) {
+ dev_err(dev, "Could not setup ADC\n");
+ return ret;
+ }
+
+ tsc_cfg = AVE_CTRL(ts->ave_ctrl) | DET_DELAY(ts->touch_det_delay) |
+ SETTLING(ts->settling);
+ tsc_cfg_mask = AVE_CTRL(0xff) | DET_DELAY(0xff) | SETTLING(0xff);
+
+ ret = stmpe_set_bits(stmpe, STMPE_REG_TSC_CFG, tsc_cfg_mask, tsc_cfg);
+ if (ret) {
+ dev_err(dev, "Could not config touch\n");
+ return ret;
+ }
+
+ ret = stmpe_set_bits(stmpe, STMPE_REG_TSC_FRACTION_Z,
+ FRACTION_Z(0xff), FRACTION_Z(ts->fraction_z));
+ if (ret) {
+ dev_err(dev, "Could not config touch\n");
+ return ret;
+ }
+
+ ret = stmpe_set_bits(stmpe, STMPE_REG_TSC_I_DRIVE,
+ I_DRIVE(0xff), I_DRIVE(ts->i_drive));
+ if (ret) {
+ dev_err(dev, "Could not config touch\n");
+ return ret;
+ }
+
+ /* set FIFO to 1 for single point reading */
+ ret = stmpe_reg_write(stmpe, STMPE_REG_FIFO_TH, 1);
+ if (ret) {
+ dev_err(dev, "Could not set FIFO\n");
+ return ret;
+ }
+
+ ret = stmpe_set_bits(stmpe, STMPE_REG_TSC_CTRL,
+ OP_MODE(0xff), OP_MODE(OP_MOD_XYZ));
+ if (ret) {
+ dev_err(dev, "Could not set mode\n");
+ return ret;
+ }
+
+ return 0;
+}
+
+static int stmpe_ts_open(struct input_dev *dev)
+{
+ struct stmpe_touch *ts = input_get_drvdata(dev);
+ int ret = 0;
+
+ ret = __stmpe_reset_fifo(ts->stmpe);
+ if (ret)
+ return ret;
+
+ return stmpe_set_bits(ts->stmpe, STMPE_REG_TSC_CTRL,
+ STMPE_TSC_CTRL_TSC_EN, STMPE_TSC_CTRL_TSC_EN);
+}
+
+static void stmpe_ts_close(struct input_dev *dev)
+{
+ struct stmpe_touch *ts = input_get_drvdata(dev);
+
+ cancel_delayed_work_sync(&ts->work);
+
+ stmpe_set_bits(ts->stmpe, STMPE_REG_TSC_CTRL,
+ STMPE_TSC_CTRL_TSC_EN, 0);
+}
+
+static int __devinit stmpe_input_probe(struct platform_device *pdev)
+{
+ struct stmpe *stmpe = dev_get_drvdata(pdev->dev.parent);
+ struct stmpe_platform_data *pdata = stmpe->pdata;
+ struct stmpe_touch *ts;
+ struct input_dev *idev;
+ struct stmpe_ts_platform_data *ts_pdata = NULL;
+ int ret;
+ int ts_irq;
+
+ ts_irq = platform_get_irq_byname(pdev, "FIFO_TH");
+ if (ts_irq < 0)
+ return ts_irq;
+
+ ts = kzalloc(sizeof(*ts), GFP_KERNEL);
+ if (!ts) {
+ ret = -ENOMEM;
+ goto err_out;
+ }
+
+ idev = input_allocate_device();
+ if (!idev) {
+ ret = -ENOMEM;
+ goto err_free_ts;
+ }
+
+ platform_set_drvdata(pdev, ts);
+ ts->stmpe = stmpe;
+ ts->idev = idev;
+ ts->dev = &pdev->dev;
+
+ if (pdata)
+ ts_pdata = pdata->ts;
+
+ if (ts_pdata) {
+ ts->sample_time = ts_pdata->sample_time;
+ ts->mod_12b = ts_pdata->mod_12b;
+ ts->ref_sel = ts_pdata->ref_sel;
+ ts->adc_freq = ts_pdata->adc_freq;
+ ts->ave_ctrl = ts_pdata->ave_ctrl;
+ ts->touch_det_delay = ts_pdata->touch_det_delay;
+ ts->settling = ts_pdata->settling;
+ ts->fraction_z = ts_pdata->fraction_z;
+ ts->i_drive = ts_pdata->i_drive;
+ }
+
+ INIT_DELAYED_WORK(&ts->work, stmpe_work);
+
+ ret = request_threaded_irq(ts_irq, NULL, stmpe_ts_handler,
+ IRQF_ONESHOT, STMPE_TS_NAME, ts);
+ if (ret) {
+ dev_err(&pdev->dev, "Failed to request IRQ %d\n", ts_irq);
+ goto err_free_input;
+ }
+
+ ret = stmpe_init_hw(ts);
+ if (ret)
+ goto err_free_irq;
+
+ idev->name = STMPE_TS_NAME;
+ idev->id.bustype = BUS_I2C;
+ idev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
+ idev->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH);
+
+ idev->open = stmpe_ts_open;
+ idev->close = stmpe_ts_close;
+
+ input_set_drvdata(idev, ts);
+
+ input_set_abs_params(idev, ABS_X, 0, XY_MASK, 0, 0);
+ input_set_abs_params(idev, ABS_Y, 0, XY_MASK, 0, 0);
+ input_set_abs_params(idev, ABS_PRESSURE, 0x0, 0xff, 0, 0);
+
+ ret = input_register_device(idev);
+ if (ret) {
+ dev_err(&pdev->dev, "Could not register input device\n");
+ goto err_free_irq;
+ }
+
+ return ret;
+
+err_free_irq:
+ free_irq(ts_irq, ts);
+err_free_input:
+ input_free_device(idev);
+ platform_set_drvdata(pdev, NULL);
+err_free_ts:
+ kfree(ts);
+err_out:
+ return ret;
+}
+
+static int __devexit stmpe_ts_remove(struct platform_device *pdev)
+{
+ struct stmpe_touch *ts = platform_get_drvdata(pdev);
+ unsigned int ts_irq = platform_get_irq_byname(pdev, "FIFO_TH");
+
+ stmpe_disable(ts->stmpe, STMPE_BLOCK_TOUCHSCREEN);
+
+ free_irq(ts_irq, ts);
+
+ platform_set_drvdata(pdev, NULL);
+
+ input_unregister_device(ts->idev);
+
+ kfree(ts);
+
+ return 0;
+}
+
+static struct platform_driver stmpe_ts_driver = {
+ .driver = {
+ .name = STMPE_TS_NAME,
+ .owner = THIS_MODULE,
+ },
+ .probe = stmpe_input_probe,
+ .remove = __devexit_p(stmpe_ts_remove),
+};
+
+static int __init stmpe_ts_init(void)
+{
+ return platform_driver_register(&stmpe_ts_driver);
+}
+
+module_init(stmpe_ts_init);
+
+static void __exit stmpe_ts_exit(void)
+{
+ platform_driver_unregister(&stmpe_ts_driver);
+}
+
+module_exit(stmpe_ts_exit);
+
+MODULE_AUTHOR("Luotao Fu <l.fu@pengutronix.de>");
+MODULE_DESCRIPTION("STMPEXXX touchscreen driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:" STMPE_TS_NAME);
diff --git a/drivers/input/touchscreen/tnetv107x-ts.c b/drivers/input/touchscreen/tnetv107x-ts.c
new file mode 100644
index 0000000..0e8f63e
--- /dev/null
+++ b/drivers/input/touchscreen/tnetv107x-ts.c
@@ -0,0 +1,398 @@
+/*
+ * Texas Instruments TNETV107X Touchscreen Driver
+ *
+ * Copyright (C) 2010 Texas Instruments
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation version 2.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any
+ * kind, whether express or implied; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/err.h>
+#include <linux/errno.h>
+#include <linux/input.h>
+#include <linux/platform_device.h>
+#include <linux/interrupt.h>
+#include <linux/slab.h>
+#include <linux/delay.h>
+#include <linux/ctype.h>
+#include <linux/io.h>
+#include <linux/clk.h>
+
+#include <mach/tnetv107x.h>
+
+#define TSC_PENUP_POLL (HZ / 5)
+#define IDLE_TIMEOUT 100 /* msec */
+
+/*
+ * The first and last samples of a touch interval are usually garbage and need
+ * to be filtered out with these devices. The following definitions control
+ * the number of samples skipped.
+ */
+#define TSC_HEAD_SKIP 1
+#define TSC_TAIL_SKIP 1
+#define TSC_SKIP (TSC_HEAD_SKIP + TSC_TAIL_SKIP + 1)
+#define TSC_SAMPLES (TSC_SKIP + 1)
+
+/* Register Offsets */
+struct tsc_regs {
+ u32 rev;
+ u32 tscm;
+ u32 bwcm;
+ u32 swc;
+ u32 adcchnl;
+ u32 adcdata;
+ u32 chval[4];
+};
+
+/* TSC Mode Configuration Register (tscm) bits */
+#define WMODE BIT(0)
+#define TSKIND BIT(1)
+#define ZMEASURE_EN BIT(2)
+#define IDLE BIT(3)
+#define TSC_EN BIT(4)
+#define STOP BIT(5)
+#define ONE_SHOT BIT(6)
+#define SINGLE BIT(7)
+#define AVG BIT(8)
+#define AVGNUM(x) (((x) & 0x03) << 9)
+#define PVSTC(x) (((x) & 0x07) << 11)
+#define PON BIT(14)
+#define PONBG BIT(15)
+#define AFERST BIT(16)
+
+/* ADC DATA Capture Register bits */
+#define DATA_VALID BIT(16)
+
+/* Register Access Macros */
+#define tsc_read(ts, reg) __raw_readl(&(ts)->regs->reg)
+#define tsc_write(ts, reg, val) __raw_writel(val, &(ts)->regs->reg);
+#define tsc_set_bits(ts, reg, val) \
+ tsc_write(ts, reg, tsc_read(ts, reg) | (val))
+#define tsc_clr_bits(ts, reg, val) \
+ tsc_write(ts, reg, tsc_read(ts, reg) & ~(val))
+
+struct sample {
+ int x, y, p;
+};
+
+struct tsc_data {
+ struct input_dev *input_dev;
+ struct resource *res;
+ struct tsc_regs __iomem *regs;
+ struct timer_list timer;
+ spinlock_t lock;
+ struct clk *clk;
+ struct device *dev;
+ int sample_count;
+ struct sample samples[TSC_SAMPLES];
+ int tsc_irq;
+};
+
+static int tsc_read_sample(struct tsc_data *ts, struct sample* sample)
+{
+ int x, y, z1, z2, t, p = 0;
+ u32 val;
+
+ val = tsc_read(ts, chval[0]);
+ if (val & DATA_VALID)
+ x = val & 0xffff;
+ else
+ return -EINVAL;
+
+ y = tsc_read(ts, chval[1]) & 0xffff;
+ z1 = tsc_read(ts, chval[2]) & 0xffff;
+ z2 = tsc_read(ts, chval[3]) & 0xffff;
+
+ if (z1) {
+ t = ((600 * x) * (z2 - z1));
+ p = t / (u32) (z1 << 12);
+ if (p < 0)
+ p = 0;
+ }
+
+ sample->x = x;
+ sample->y = y;
+ sample->p = p;
+
+ return 0;
+}
+
+static void tsc_poll(unsigned long data)
+{
+ struct tsc_data *ts = (struct tsc_data *)data;
+ unsigned long flags;
+ int i, val, x, y, p;
+
+ spin_lock_irqsave(&ts->lock, flags);
+
+ if (ts->sample_count >= TSC_SKIP) {
+ input_report_abs(ts->input_dev, ABS_PRESSURE, 0);
+ input_report_key(ts->input_dev, BTN_TOUCH, 0);
+ input_sync(ts->input_dev);
+ } else if (ts->sample_count > 0) {
+ /*
+ * A touch event lasted less than our skip count. Salvage and
+ * report anyway.
+ */
+ for (i = 0, val = 0; i < ts->sample_count; i++)
+ val += ts->samples[i].x;
+ x = val / ts->sample_count;
+
+ for (i = 0, val = 0; i < ts->sample_count; i++)
+ val += ts->samples[i].y;
+ y = val / ts->sample_count;
+
+ for (i = 0, val = 0; i < ts->sample_count; i++)
+ val += ts->samples[i].p;
+ p = val / ts->sample_count;
+
+ input_report_abs(ts->input_dev, ABS_X, x);
+ input_report_abs(ts->input_dev, ABS_Y, y);
+ input_report_abs(ts->input_dev, ABS_PRESSURE, p);
+ input_report_key(ts->input_dev, BTN_TOUCH, 1);
+ input_sync(ts->input_dev);
+ }
+
+ ts->sample_count = 0;
+
+ spin_unlock_irqrestore(&ts->lock, flags);
+}
+
+static irqreturn_t tsc_irq(int irq, void *dev_id)
+{
+ struct tsc_data *ts = (struct tsc_data *)dev_id;
+ struct sample *sample;
+ int index;
+
+ spin_lock(&ts->lock);
+
+ index = ts->sample_count % TSC_SAMPLES;
+ sample = &ts->samples[index];
+ if (tsc_read_sample(ts, sample) < 0)
+ goto out;
+
+ if (++ts->sample_count >= TSC_SKIP) {
+ index = (ts->sample_count - TSC_TAIL_SKIP - 1) % TSC_SAMPLES;
+ sample = &ts->samples[index];
+
+ input_report_abs(ts->input_dev, ABS_X, sample->x);
+ input_report_abs(ts->input_dev, ABS_Y, sample->y);
+ input_report_abs(ts->input_dev, ABS_PRESSURE, sample->p);
+ if (ts->sample_count == TSC_SKIP)
+ input_report_key(ts->input_dev, BTN_TOUCH, 1);
+ input_sync(ts->input_dev);
+ }
+ mod_timer(&ts->timer, jiffies + TSC_PENUP_POLL);
+out:
+ spin_unlock(&ts->lock);
+ return IRQ_HANDLED;
+}
+
+static int tsc_start(struct input_dev *dev)
+{
+ struct tsc_data *ts = input_get_drvdata(dev);
+ unsigned long timeout = jiffies + msecs_to_jiffies(IDLE_TIMEOUT);
+ u32 val;
+
+ clk_enable(ts->clk);
+
+ /* Go to idle mode, before any initialization */
+ while (time_after(timeout, jiffies)) {
+ if (tsc_read(ts, tscm) & IDLE)
+ break;
+ }
+
+ if (time_before(timeout, jiffies)) {
+ dev_warn(ts->dev, "timeout waiting for idle\n");
+ clk_disable(ts->clk);
+ return -EIO;
+ }
+
+ /* Configure TSC Control register*/
+ val = (PONBG | PON | PVSTC(4) | ONE_SHOT | ZMEASURE_EN);
+ tsc_write(ts, tscm, val);
+
+ /* Bring TSC out of reset: Clear AFE reset bit */
+ val &= ~(AFERST);
+ tsc_write(ts, tscm, val);
+
+ /* Configure all pins for hardware control*/
+ tsc_write(ts, bwcm, 0);
+
+ /* Finally enable the TSC */
+ tsc_set_bits(ts, tscm, TSC_EN);
+
+ return 0;
+}
+
+static void tsc_stop(struct input_dev *dev)
+{
+ struct tsc_data *ts = input_get_drvdata(dev);
+
+ tsc_clr_bits(ts, tscm, TSC_EN);
+ synchronize_irq(ts->tsc_irq);
+ del_timer_sync(&ts->timer);
+ clk_disable(ts->clk);
+}
+
+static int __devinit tsc_probe(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct tsc_data *ts;
+ int error = 0;
+ u32 rev = 0;
+
+ ts = kzalloc(sizeof(struct tsc_data), GFP_KERNEL);
+ if (!ts) {
+ dev_err(dev, "cannot allocate device info\n");
+ return -ENOMEM;
+ }
+
+ ts->dev = dev;
+ spin_lock_init(&ts->lock);
+ setup_timer(&ts->timer, tsc_poll, (unsigned long)ts);
+ platform_set_drvdata(pdev, ts);
+
+ ts->tsc_irq = platform_get_irq(pdev, 0);
+ if (ts->tsc_irq < 0) {
+ dev_err(dev, "cannot determine device interrupt\n");
+ error = -ENODEV;
+ goto error_res;
+ }
+
+ ts->res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!ts->res) {
+ dev_err(dev, "cannot determine register area\n");
+ error = -ENODEV;
+ goto error_res;
+ }
+
+ if (!request_mem_region(ts->res->start, resource_size(ts->res),
+ pdev->name)) {
+ dev_err(dev, "cannot claim register memory\n");
+ ts->res = NULL;
+ error = -EINVAL;
+ goto error_res;
+ }
+
+ ts->regs = ioremap(ts->res->start, resource_size(ts->res));
+ if (!ts->regs) {
+ dev_err(dev, "cannot map register memory\n");
+ error = -ENOMEM;
+ goto error_map;
+ }
+
+ ts->clk = clk_get(dev, NULL);
+ if (IS_ERR(ts->clk)) {
+ dev_err(dev, "cannot claim device clock\n");
+ error = PTR_ERR(ts->clk);
+ goto error_clk;
+ }
+
+ error = request_threaded_irq(ts->tsc_irq, NULL, tsc_irq, 0,
+ dev_name(dev), ts);
+ if (error < 0) {
+ dev_err(ts->dev, "Could not allocate ts irq\n");
+ goto error_irq;
+ }
+
+ ts->input_dev = input_allocate_device();
+ if (!ts->input_dev) {
+ dev_err(dev, "cannot allocate input device\n");
+ error = -ENOMEM;
+ goto error_input;
+ }
+ input_set_drvdata(ts->input_dev, ts);
+
+ ts->input_dev->name = pdev->name;
+ ts->input_dev->id.bustype = BUS_HOST;
+ ts->input_dev->dev.parent = &pdev->dev;
+ ts->input_dev->open = tsc_start;
+ ts->input_dev->close = tsc_stop;
+
+ clk_enable(ts->clk);
+ rev = tsc_read(ts, rev);
+ ts->input_dev->id.product = ((rev >> 8) & 0x07);
+ ts->input_dev->id.version = ((rev >> 16) & 0xfff);
+ clk_disable(ts->clk);
+
+ __set_bit(EV_KEY, ts->input_dev->evbit);
+ __set_bit(EV_ABS, ts->input_dev->evbit);
+ __set_bit(BTN_TOUCH, ts->input_dev->keybit);
+
+ input_set_abs_params(ts->input_dev, ABS_X, 0, 0xffff, 5, 0);
+ input_set_abs_params(ts->input_dev, ABS_Y, 0, 0xffff, 5, 0);
+ input_set_abs_params(ts->input_dev, ABS_PRESSURE, 0, 4095, 128, 0);
+
+ error = input_register_device(ts->input_dev);
+ if (error < 0) {
+ dev_err(dev, "failed input device registration\n");
+ goto error_reg;
+ }
+
+ return 0;
+
+error_reg:
+ input_free_device(ts->input_dev);
+error_input:
+ free_irq(ts->tsc_irq, ts);
+error_irq:
+ clk_put(ts->clk);
+error_clk:
+ iounmap(ts->regs);
+error_map:
+ release_mem_region(ts->res->start, resource_size(ts->res));
+error_res:
+ platform_set_drvdata(pdev, NULL);
+ kfree(ts);
+
+ return error;
+}
+
+static int __devexit tsc_remove(struct platform_device *pdev)
+{
+ struct tsc_data *ts = platform_get_drvdata(pdev);
+
+ input_unregister_device(ts->input_dev);
+ free_irq(ts->tsc_irq, ts);
+ clk_put(ts->clk);
+ iounmap(ts->regs);
+ release_mem_region(ts->res->start, resource_size(ts->res));
+ platform_set_drvdata(pdev, NULL);
+ kfree(ts);
+
+ return 0;
+}
+
+static struct platform_driver tsc_driver = {
+ .probe = tsc_probe,
+ .remove = __devexit_p(tsc_remove),
+ .driver.name = "tnetv107x-ts",
+ .driver.owner = THIS_MODULE,
+};
+
+static int __init tsc_init(void)
+{
+ return platform_driver_register(&tsc_driver);
+}
+
+static void __exit tsc_exit(void)
+{
+ platform_driver_unregister(&tsc_driver);
+}
+
+module_init(tsc_init);
+module_exit(tsc_exit);
+
+MODULE_AUTHOR("Cyril Chemparathy");
+MODULE_DESCRIPTION("TNETV107X Touchscreen Driver");
+MODULE_ALIAS("platform:tnetv107x-ts");
+MODULE_LICENSE("GPL");
diff --git a/drivers/input/touchscreen/touchit213.c b/drivers/input/touchscreen/touchit213.c
new file mode 100644
index 0000000..d1297ba
--- /dev/null
+++ b/drivers/input/touchscreen/touchit213.c
@@ -0,0 +1,234 @@
+/*
+ * Sahara TouchIT-213 serial touchscreen driver
+ *
+ * Copyright (c) 2007-2008 Claudio Nieder <private@claudio.ch>
+ *
+ * Based on Touchright driver (drivers/input/touchscreen/touchright.c)
+ * Copyright (c) 2006 Rick Koch <n1gp@hotmail.com>
+ * Copyright (c) 2004 Vojtech Pavlik
+ * and Dan Streetman <ddstreet@ieee.org>
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ */
+
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/input.h>
+#include <linux/serio.h>
+#include <linux/init.h>
+
+#define DRIVER_DESC "Sahara TouchIT-213 serial touchscreen driver"
+
+MODULE_AUTHOR("Claudio Nieder <private@claudio.ch>");
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+/*
+ * Definitions & global arrays.
+ */
+
+/*
+ * Data is received through COM1 at 9600bit/s,8bit,no parity in packets
+ * of 5 byte each.
+ *
+ * +--------+ +--------+ +--------+ +--------+ +--------+
+ * |1000000p| |0xxxxxxx| |0xxxxxxx| |0yyyyyyy| |0yyyyyyy|
+ * +--------+ +--------+ +--------+ +--------+ +--------+
+ * MSB LSB MSB LSB
+ *
+ * The value of p is 1 as long as the screen is touched and 0 when
+ * reporting the location where touching stopped, e.g. where the pen was
+ * lifted from the screen.
+ *
+ * When holding the screen in landscape mode as the BIOS text output is
+ * presented, x is the horizontal axis with values growing from left to
+ * right and y is the vertical axis with values growing from top to
+ * bottom.
+ *
+ * When holding the screen in portrait mode with the Sahara logo in its
+ * correct position, x ist the vertical axis with values growing from
+ * top to bottom and y is the horizontal axis with values growing from
+ * right to left.
+ */
+
+#define T213_FORMAT_TOUCH_BIT 0x01
+#define T213_FORMAT_STATUS_BYTE 0x80
+#define T213_FORMAT_STATUS_MASK ~T213_FORMAT_TOUCH_BIT
+
+/*
+ * On my Sahara Touch-IT 213 I have observed x values from 0 to 0x7f0
+ * and y values from 0x1d to 0x7e9, so the actual measurement is
+ * probably done with an 11 bit precision.
+ */
+#define T213_MIN_XC 0
+#define T213_MAX_XC 0x07ff
+#define T213_MIN_YC 0
+#define T213_MAX_YC 0x07ff
+
+/*
+ * Per-touchscreen data.
+ */
+
+struct touchit213 {
+ struct input_dev *dev;
+ struct serio *serio;
+ int idx;
+ unsigned char csum;
+ unsigned char data[5];
+ char phys[32];
+};
+
+static irqreturn_t touchit213_interrupt(struct serio *serio,
+ unsigned char data, unsigned int flags)
+{
+ struct touchit213 *touchit213 = serio_get_drvdata(serio);
+ struct input_dev *dev = touchit213->dev;
+
+ touchit213->data[touchit213->idx] = data;
+
+ switch (touchit213->idx++) {
+ case 0:
+ if ((touchit213->data[0] & T213_FORMAT_STATUS_MASK) !=
+ T213_FORMAT_STATUS_BYTE) {
+ pr_debug("unsynchronized data: 0x%02x\n", data);
+ touchit213->idx = 0;
+ }
+ break;
+
+ case 4:
+ touchit213->idx = 0;
+ input_report_abs(dev, ABS_X,
+ (touchit213->data[1] << 7) | touchit213->data[2]);
+ input_report_abs(dev, ABS_Y,
+ (touchit213->data[3] << 7) | touchit213->data[4]);
+ input_report_key(dev, BTN_TOUCH,
+ touchit213->data[0] & T213_FORMAT_TOUCH_BIT);
+ input_sync(dev);
+ break;
+ }
+
+ return IRQ_HANDLED;
+}
+
+/*
+ * touchit213_disconnect() is the opposite of touchit213_connect()
+ */
+
+static void touchit213_disconnect(struct serio *serio)
+{
+ struct touchit213 *touchit213 = serio_get_drvdata(serio);
+
+ input_get_device(touchit213->dev);
+ input_unregister_device(touchit213->dev);
+ serio_close(serio);
+ serio_set_drvdata(serio, NULL);
+ input_put_device(touchit213->dev);
+ kfree(touchit213);
+}
+
+/*
+ * touchit213_connect() is the routine that is called when someone adds a
+ * new serio device that supports the Touchright protocol and registers it as
+ * an input device.
+ */
+
+static int touchit213_connect(struct serio *serio, struct serio_driver *drv)
+{
+ struct touchit213 *touchit213;
+ struct input_dev *input_dev;
+ int err;
+
+ touchit213 = kzalloc(sizeof(struct touchit213), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!touchit213 || !input_dev) {
+ err = -ENOMEM;
+ goto fail1;
+ }
+
+ touchit213->serio = serio;
+ touchit213->dev = input_dev;
+ snprintf(touchit213->phys, sizeof(touchit213->phys),
+ "%s/input0", serio->phys);
+
+ input_dev->name = "Sahara Touch-iT213 Serial TouchScreen";
+ input_dev->phys = touchit213->phys;
+ input_dev->id.bustype = BUS_RS232;
+ input_dev->id.vendor = SERIO_TOUCHIT213;
+ input_dev->id.product = 0;
+ input_dev->id.version = 0x0100;
+ input_dev->dev.parent = &serio->dev;
+ input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
+ input_dev->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH);
+ input_set_abs_params(touchit213->dev, ABS_X,
+ T213_MIN_XC, T213_MAX_XC, 0, 0);
+ input_set_abs_params(touchit213->dev, ABS_Y,
+ T213_MIN_YC, T213_MAX_YC, 0, 0);
+
+ serio_set_drvdata(serio, touchit213);
+
+ err = serio_open(serio, drv);
+ if (err)
+ goto fail2;
+
+ err = input_register_device(touchit213->dev);
+ if (err)
+ goto fail3;
+
+ return 0;
+
+ fail3: serio_close(serio);
+ fail2: serio_set_drvdata(serio, NULL);
+ fail1: input_free_device(input_dev);
+ kfree(touchit213);
+ return err;
+}
+
+/*
+ * The serio driver structure.
+ */
+
+static struct serio_device_id touchit213_serio_ids[] = {
+ {
+ .type = SERIO_RS232,
+ .proto = SERIO_TOUCHIT213,
+ .id = SERIO_ANY,
+ .extra = SERIO_ANY,
+ },
+ { 0 }
+};
+
+MODULE_DEVICE_TABLE(serio, touchit213_serio_ids);
+
+static struct serio_driver touchit213_drv = {
+ .driver = {
+ .name = "touchit213",
+ },
+ .description = DRIVER_DESC,
+ .id_table = touchit213_serio_ids,
+ .interrupt = touchit213_interrupt,
+ .connect = touchit213_connect,
+ .disconnect = touchit213_disconnect,
+};
+
+/*
+ * The functions for inserting/removing us as a module.
+ */
+
+static int __init touchit213_init(void)
+{
+ return serio_register_driver(&touchit213_drv);
+}
+
+static void __exit touchit213_exit(void)
+{
+ serio_unregister_driver(&touchit213_drv);
+}
+
+module_init(touchit213_init);
+module_exit(touchit213_exit);
diff --git a/drivers/input/touchscreen/touchright.c b/drivers/input/touchscreen/touchright.c
new file mode 100644
index 0000000..3a5c142
--- /dev/null
+++ b/drivers/input/touchscreen/touchright.c
@@ -0,0 +1,194 @@
+/*
+ * Touchright serial touchscreen driver
+ *
+ * Copyright (c) 2006 Rick Koch <n1gp@hotmail.com>
+ *
+ * Based on MicroTouch driver (drivers/input/touchscreen/mtouch.c)
+ * Copyright (c) 2004 Vojtech Pavlik
+ * and Dan Streetman <ddstreet@ieee.org>
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ */
+
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/input.h>
+#include <linux/serio.h>
+#include <linux/init.h>
+
+#define DRIVER_DESC "Touchright serial touchscreen driver"
+
+MODULE_AUTHOR("Rick Koch <n1gp@hotmail.com>");
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+/*
+ * Definitions & global arrays.
+ */
+
+#define TR_FORMAT_TOUCH_BIT 0x01
+#define TR_FORMAT_STATUS_BYTE 0x40
+#define TR_FORMAT_STATUS_MASK ~TR_FORMAT_TOUCH_BIT
+
+#define TR_LENGTH 5
+
+#define TR_MIN_XC 0
+#define TR_MAX_XC 0x1ff
+#define TR_MIN_YC 0
+#define TR_MAX_YC 0x1ff
+
+/*
+ * Per-touchscreen data.
+ */
+
+struct tr {
+ struct input_dev *dev;
+ struct serio *serio;
+ int idx;
+ unsigned char data[TR_LENGTH];
+ char phys[32];
+};
+
+static irqreturn_t tr_interrupt(struct serio *serio,
+ unsigned char data, unsigned int flags)
+{
+ struct tr *tr = serio_get_drvdata(serio);
+ struct input_dev *dev = tr->dev;
+
+ tr->data[tr->idx] = data;
+
+ if ((tr->data[0] & TR_FORMAT_STATUS_MASK) == TR_FORMAT_STATUS_BYTE) {
+ if (++tr->idx == TR_LENGTH) {
+ input_report_abs(dev, ABS_X,
+ (tr->data[1] << 5) | (tr->data[2] >> 1));
+ input_report_abs(dev, ABS_Y,
+ (tr->data[3] << 5) | (tr->data[4] >> 1));
+ input_report_key(dev, BTN_TOUCH,
+ tr->data[0] & TR_FORMAT_TOUCH_BIT);
+ input_sync(dev);
+ tr->idx = 0;
+ }
+ }
+
+ return IRQ_HANDLED;
+}
+
+/*
+ * tr_disconnect() is the opposite of tr_connect()
+ */
+
+static void tr_disconnect(struct serio *serio)
+{
+ struct tr *tr = serio_get_drvdata(serio);
+
+ input_get_device(tr->dev);
+ input_unregister_device(tr->dev);
+ serio_close(serio);
+ serio_set_drvdata(serio, NULL);
+ input_put_device(tr->dev);
+ kfree(tr);
+}
+
+/*
+ * tr_connect() is the routine that is called when someone adds a
+ * new serio device that supports the Touchright protocol and registers it as
+ * an input device.
+ */
+
+static int tr_connect(struct serio *serio, struct serio_driver *drv)
+{
+ struct tr *tr;
+ struct input_dev *input_dev;
+ int err;
+
+ tr = kzalloc(sizeof(struct tr), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!tr || !input_dev) {
+ err = -ENOMEM;
+ goto fail1;
+ }
+
+ tr->serio = serio;
+ tr->dev = input_dev;
+ snprintf(tr->phys, sizeof(tr->phys), "%s/input0", serio->phys);
+
+ input_dev->name = "Touchright Serial TouchScreen";
+ input_dev->phys = tr->phys;
+ input_dev->id.bustype = BUS_RS232;
+ input_dev->id.vendor = SERIO_TOUCHRIGHT;
+ input_dev->id.product = 0;
+ input_dev->id.version = 0x0100;
+ input_dev->dev.parent = &serio->dev;
+ input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
+ input_dev->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH);
+ input_set_abs_params(tr->dev, ABS_X, TR_MIN_XC, TR_MAX_XC, 0, 0);
+ input_set_abs_params(tr->dev, ABS_Y, TR_MIN_YC, TR_MAX_YC, 0, 0);
+
+ serio_set_drvdata(serio, tr);
+
+ err = serio_open(serio, drv);
+ if (err)
+ goto fail2;
+
+ err = input_register_device(tr->dev);
+ if (err)
+ goto fail3;
+
+ return 0;
+
+ fail3: serio_close(serio);
+ fail2: serio_set_drvdata(serio, NULL);
+ fail1: input_free_device(input_dev);
+ kfree(tr);
+ return err;
+}
+
+/*
+ * The serio driver structure.
+ */
+
+static struct serio_device_id tr_serio_ids[] = {
+ {
+ .type = SERIO_RS232,
+ .proto = SERIO_TOUCHRIGHT,
+ .id = SERIO_ANY,
+ .extra = SERIO_ANY,
+ },
+ { 0 }
+};
+
+MODULE_DEVICE_TABLE(serio, tr_serio_ids);
+
+static struct serio_driver tr_drv = {
+ .driver = {
+ .name = "touchright",
+ },
+ .description = DRIVER_DESC,
+ .id_table = tr_serio_ids,
+ .interrupt = tr_interrupt,
+ .connect = tr_connect,
+ .disconnect = tr_disconnect,
+};
+
+/*
+ * The functions for inserting/removing us as a module.
+ */
+
+static int __init tr_init(void)
+{
+ return serio_register_driver(&tr_drv);
+}
+
+static void __exit tr_exit(void)
+{
+ serio_unregister_driver(&tr_drv);
+}
+
+module_init(tr_init);
+module_exit(tr_exit);
diff --git a/drivers/input/touchscreen/touchwin.c b/drivers/input/touchscreen/touchwin.c
new file mode 100644
index 0000000..763a656
--- /dev/null
+++ b/drivers/input/touchscreen/touchwin.c
@@ -0,0 +1,201 @@
+/*
+ * Touchwindow serial touchscreen driver
+ *
+ * Copyright (c) 2006 Rick Koch <n1gp@hotmail.com>
+ *
+ * Based on MicroTouch driver (drivers/input/touchscreen/mtouch.c)
+ * Copyright (c) 2004 Vojtech Pavlik
+ * and Dan Streetman <ddstreet@ieee.org>
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ */
+
+/*
+ * 2005/02/19 Rick Koch:
+ * The Touchwindow I used is made by Edmark Corp. and
+ * constantly outputs a stream of 0's unless it is touched.
+ * It then outputs 3 bytes: X, Y, and a copy of Y.
+ */
+
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/input.h>
+#include <linux/serio.h>
+#include <linux/init.h>
+
+#define DRIVER_DESC "Touchwindow serial touchscreen driver"
+
+MODULE_AUTHOR("Rick Koch <n1gp@hotmail.com>");
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+/*
+ * Definitions & global arrays.
+ */
+
+#define TW_LENGTH 3
+
+#define TW_MIN_XC 0
+#define TW_MAX_XC 0xff
+#define TW_MIN_YC 0
+#define TW_MAX_YC 0xff
+
+/*
+ * Per-touchscreen data.
+ */
+
+struct tw {
+ struct input_dev *dev;
+ struct serio *serio;
+ int idx;
+ int touched;
+ unsigned char data[TW_LENGTH];
+ char phys[32];
+};
+
+static irqreturn_t tw_interrupt(struct serio *serio,
+ unsigned char data, unsigned int flags)
+{
+ struct tw *tw = serio_get_drvdata(serio);
+ struct input_dev *dev = tw->dev;
+
+ if (data) { /* touch */
+ tw->touched = 1;
+ tw->data[tw->idx++] = data;
+ /* verify length and that the two Y's are the same */
+ if (tw->idx == TW_LENGTH && tw->data[1] == tw->data[2]) {
+ input_report_abs(dev, ABS_X, tw->data[0]);
+ input_report_abs(dev, ABS_Y, tw->data[1]);
+ input_report_key(dev, BTN_TOUCH, 1);
+ input_sync(dev);
+ tw->idx = 0;
+ }
+ } else if (tw->touched) { /* untouch */
+ input_report_key(dev, BTN_TOUCH, 0);
+ input_sync(dev);
+ tw->idx = 0;
+ tw->touched = 0;
+ }
+
+ return IRQ_HANDLED;
+}
+
+/*
+ * tw_disconnect() is the opposite of tw_connect()
+ */
+
+static void tw_disconnect(struct serio *serio)
+{
+ struct tw *tw = serio_get_drvdata(serio);
+
+ input_get_device(tw->dev);
+ input_unregister_device(tw->dev);
+ serio_close(serio);
+ serio_set_drvdata(serio, NULL);
+ input_put_device(tw->dev);
+ kfree(tw);
+}
+
+/*
+ * tw_connect() is the routine that is called when someone adds a
+ * new serio device that supports the Touchwin protocol and registers it as
+ * an input device.
+ */
+
+static int tw_connect(struct serio *serio, struct serio_driver *drv)
+{
+ struct tw *tw;
+ struct input_dev *input_dev;
+ int err;
+
+ tw = kzalloc(sizeof(struct tw), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!tw || !input_dev) {
+ err = -ENOMEM;
+ goto fail1;
+ }
+
+ tw->serio = serio;
+ tw->dev = input_dev;
+ snprintf(tw->phys, sizeof(tw->phys), "%s/input0", serio->phys);
+
+ input_dev->name = "Touchwindow Serial TouchScreen";
+ input_dev->phys = tw->phys;
+ input_dev->id.bustype = BUS_RS232;
+ input_dev->id.vendor = SERIO_TOUCHWIN;
+ input_dev->id.product = 0;
+ input_dev->id.version = 0x0100;
+ input_dev->dev.parent = &serio->dev;
+ input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
+ input_dev->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH);
+ input_set_abs_params(tw->dev, ABS_X, TW_MIN_XC, TW_MAX_XC, 0, 0);
+ input_set_abs_params(tw->dev, ABS_Y, TW_MIN_YC, TW_MAX_YC, 0, 0);
+
+ serio_set_drvdata(serio, tw);
+
+ err = serio_open(serio, drv);
+ if (err)
+ goto fail2;
+
+ err = input_register_device(tw->dev);
+ if (err)
+ goto fail3;
+
+ return 0;
+
+ fail3: serio_close(serio);
+ fail2: serio_set_drvdata(serio, NULL);
+ fail1: input_free_device(input_dev);
+ kfree(tw);
+ return err;
+}
+
+/*
+ * The serio driver structure.
+ */
+
+static struct serio_device_id tw_serio_ids[] = {
+ {
+ .type = SERIO_RS232,
+ .proto = SERIO_TOUCHWIN,
+ .id = SERIO_ANY,
+ .extra = SERIO_ANY,
+ },
+ { 0 }
+};
+
+MODULE_DEVICE_TABLE(serio, tw_serio_ids);
+
+static struct serio_driver tw_drv = {
+ .driver = {
+ .name = "touchwin",
+ },
+ .description = DRIVER_DESC,
+ .id_table = tw_serio_ids,
+ .interrupt = tw_interrupt,
+ .connect = tw_connect,
+ .disconnect = tw_disconnect,
+};
+
+/*
+ * The functions for inserting/removing us as a module.
+ */
+
+static int __init tw_init(void)
+{
+ return serio_register_driver(&tw_drv);
+}
+
+static void __exit tw_exit(void)
+{
+ serio_unregister_driver(&tw_drv);
+}
+
+module_init(tw_init);
+module_exit(tw_exit);
diff --git a/drivers/input/touchscreen/tps6507x-ts.c b/drivers/input/touchscreen/tps6507x-ts.c
new file mode 100644
index 0000000..4303149
--- /dev/null
+++ b/drivers/input/touchscreen/tps6507x-ts.c
@@ -0,0 +1,390 @@
+/*
+ * drivers/input/touchscreen/tps6507x_ts.c
+ *
+ * Touchscreen driver for the tps6507x chip.
+ *
+ * Copyright (c) 2009 RidgeRun (todd.fischer@ridgerun.com)
+ *
+ * Credits:
+ *
+ * Using code from tsc2007, MtekVision Co., Ltd.
+ *
+ * For licencing details see kernel-base/COPYING
+ *
+ * TPS65070, TPS65073, TPS650731, and TPS650732 support
+ * 10 bit touch screen interface.
+ */
+
+#include <linux/module.h>
+#include <linux/workqueue.h>
+#include <linux/slab.h>
+#include <linux/input.h>
+#include <linux/platform_device.h>
+#include <linux/mfd/tps6507x.h>
+#include <linux/input/tps6507x-ts.h>
+#include <linux/delay.h>
+
+#define TSC_DEFAULT_POLL_PERIOD 30 /* ms */
+#define TPS_DEFAULT_MIN_PRESSURE 0x30
+#define MAX_10BIT ((1 << 10) - 1)
+
+#define TPS6507X_ADCONFIG_CONVERT_TS (TPS6507X_ADCONFIG_AD_ENABLE | \
+ TPS6507X_ADCONFIG_START_CONVERSION | \
+ TPS6507X_ADCONFIG_INPUT_REAL_TSC)
+#define TPS6507X_ADCONFIG_POWER_DOWN_TS (TPS6507X_ADCONFIG_INPUT_REAL_TSC)
+
+struct ts_event {
+ u16 x;
+ u16 y;
+ u16 pressure;
+};
+
+struct tps6507x_ts {
+ struct input_dev *input_dev;
+ struct device *dev;
+ char phys[32];
+ struct delayed_work work;
+ unsigned polling; /* polling is active */
+ struct ts_event tc;
+ struct tps6507x_dev *mfd;
+ u16 model;
+ unsigned pendown;
+ int irq;
+ void (*clear_penirq)(void);
+ unsigned long poll_period; /* ms */
+ u16 min_pressure;
+ int vref; /* non-zero to leave vref on */
+};
+
+static int tps6507x_read_u8(struct tps6507x_ts *tsc, u8 reg, u8 *data)
+{
+ int err;
+
+ err = tsc->mfd->read_dev(tsc->mfd, reg, 1, data);
+
+ if (err)
+ return err;
+
+ return 0;
+}
+
+static int tps6507x_write_u8(struct tps6507x_ts *tsc, u8 reg, u8 data)
+{
+ return tsc->mfd->write_dev(tsc->mfd, reg, 1, &data);
+}
+
+static s32 tps6507x_adc_conversion(struct tps6507x_ts *tsc,
+ u8 tsc_mode, u16 *value)
+{
+ s32 ret;
+ u8 adc_status;
+ u8 result;
+
+ /* Route input signal to A/D converter */
+
+ ret = tps6507x_write_u8(tsc, TPS6507X_REG_TSCMODE, tsc_mode);
+ if (ret) {
+ dev_err(tsc->dev, "TSC mode read failed\n");
+ goto err;
+ }
+
+ /* Start A/D conversion */
+
+ ret = tps6507x_write_u8(tsc, TPS6507X_REG_ADCONFIG,
+ TPS6507X_ADCONFIG_CONVERT_TS);
+ if (ret) {
+ dev_err(tsc->dev, "ADC config write failed\n");
+ return ret;
+ }
+
+ do {
+ ret = tps6507x_read_u8(tsc, TPS6507X_REG_ADCONFIG,
+ &adc_status);
+ if (ret) {
+ dev_err(tsc->dev, "ADC config read failed\n");
+ goto err;
+ }
+ } while (adc_status & TPS6507X_ADCONFIG_START_CONVERSION);
+
+ ret = tps6507x_read_u8(tsc, TPS6507X_REG_ADRESULT_2, &result);
+ if (ret) {
+ dev_err(tsc->dev, "ADC result 2 read failed\n");
+ goto err;
+ }
+
+ *value = (result & TPS6507X_REG_ADRESULT_2_MASK) << 8;
+
+ ret = tps6507x_read_u8(tsc, TPS6507X_REG_ADRESULT_1, &result);
+ if (ret) {
+ dev_err(tsc->dev, "ADC result 1 read failed\n");
+ goto err;
+ }
+
+ *value |= result;
+
+ dev_dbg(tsc->dev, "TSC channel %d = 0x%X\n", tsc_mode, *value);
+
+err:
+ return ret;
+}
+
+/* Need to call tps6507x_adc_standby() after using A/D converter for the
+ * touch screen interrupt to work properly.
+ */
+
+static s32 tps6507x_adc_standby(struct tps6507x_ts *tsc)
+{
+ s32 ret;
+ s32 loops = 0;
+ u8 val;
+
+ ret = tps6507x_write_u8(tsc, TPS6507X_REG_ADCONFIG,
+ TPS6507X_ADCONFIG_INPUT_TSC);
+ if (ret)
+ return ret;
+
+ ret = tps6507x_write_u8(tsc, TPS6507X_REG_TSCMODE,
+ TPS6507X_TSCMODE_STANDBY);
+ if (ret)
+ return ret;
+
+ ret = tps6507x_read_u8(tsc, TPS6507X_REG_INT, &val);
+ if (ret)
+ return ret;
+
+ while (val & TPS6507X_REG_TSC_INT) {
+ mdelay(10);
+ ret = tps6507x_read_u8(tsc, TPS6507X_REG_INT, &val);
+ if (ret)
+ return ret;
+ loops++;
+ }
+
+ return ret;
+}
+
+static void tps6507x_ts_handler(struct work_struct *work)
+{
+ struct tps6507x_ts *tsc = container_of(work,
+ struct tps6507x_ts, work.work);
+ struct input_dev *input_dev = tsc->input_dev;
+ int pendown;
+ int schd;
+ int poll = 0;
+ s32 ret;
+
+ ret = tps6507x_adc_conversion(tsc, TPS6507X_TSCMODE_PRESSURE,
+ &tsc->tc.pressure);
+ if (ret)
+ goto done;
+
+ pendown = tsc->tc.pressure > tsc->min_pressure;
+
+ if (unlikely(!pendown && tsc->pendown)) {
+ dev_dbg(tsc->dev, "UP\n");
+ input_report_key(input_dev, BTN_TOUCH, 0);
+ input_report_abs(input_dev, ABS_PRESSURE, 0);
+ input_sync(input_dev);
+ tsc->pendown = 0;
+ }
+
+ if (pendown) {
+
+ if (!tsc->pendown) {
+ dev_dbg(tsc->dev, "DOWN\n");
+ input_report_key(input_dev, BTN_TOUCH, 1);
+ } else
+ dev_dbg(tsc->dev, "still down\n");
+
+ ret = tps6507x_adc_conversion(tsc, TPS6507X_TSCMODE_X_POSITION,
+ &tsc->tc.x);
+ if (ret)
+ goto done;
+
+ ret = tps6507x_adc_conversion(tsc, TPS6507X_TSCMODE_Y_POSITION,
+ &tsc->tc.y);
+ if (ret)
+ goto done;
+
+ input_report_abs(input_dev, ABS_X, tsc->tc.x);
+ input_report_abs(input_dev, ABS_Y, tsc->tc.y);
+ input_report_abs(input_dev, ABS_PRESSURE, tsc->tc.pressure);
+ input_sync(input_dev);
+ tsc->pendown = 1;
+ poll = 1;
+ }
+
+done:
+ /* always poll if not using interrupts */
+ poll = 1;
+
+ if (poll) {
+ schd = schedule_delayed_work(&tsc->work,
+ msecs_to_jiffies(tsc->poll_period));
+ if (schd)
+ tsc->polling = 1;
+ else {
+ tsc->polling = 0;
+ dev_err(tsc->dev, "re-schedule failed");
+ }
+ } else
+ tsc->polling = 0;
+
+ ret = tps6507x_adc_standby(tsc);
+}
+
+static int tps6507x_ts_probe(struct platform_device *pdev)
+{
+ int error;
+ struct tps6507x_ts *tsc;
+ struct tps6507x_dev *tps6507x_dev = dev_get_drvdata(pdev->dev.parent);
+ struct touchscreen_init_data *init_data;
+ struct input_dev *input_dev;
+ struct tps6507x_board *tps_board;
+ int schd;
+
+ /**
+ * tps_board points to pmic related constants
+ * coming from the board-evm file.
+ */
+
+ tps_board = (struct tps6507x_board *)tps6507x_dev->dev->platform_data;
+
+ if (!tps_board) {
+ dev_err(tps6507x_dev->dev,
+ "Could not find tps6507x platform data\n");
+ return -EIO;
+ }
+
+ /**
+ * init_data points to array of regulator_init structures
+ * coming from the board-evm file.
+ */
+
+ init_data = tps_board->tps6507x_ts_init_data;
+
+ tsc = kzalloc(sizeof(struct tps6507x_ts), GFP_KERNEL);
+ if (!tsc) {
+ dev_err(tps6507x_dev->dev, "failed to allocate driver data\n");
+ error = -ENOMEM;
+ goto err0;
+ }
+
+ tps6507x_dev->ts = tsc;
+ tsc->mfd = tps6507x_dev;
+ tsc->dev = tps6507x_dev->dev;
+ input_dev = input_allocate_device();
+ if (!input_dev) {
+ dev_err(tsc->dev, "Failed to allocate input device.\n");
+ error = -ENOMEM;
+ goto err1;
+ }
+
+ input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
+ input_dev->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH);
+
+ input_set_abs_params(input_dev, ABS_X, 0, MAX_10BIT, 0, 0);
+ input_set_abs_params(input_dev, ABS_Y, 0, MAX_10BIT, 0, 0);
+ input_set_abs_params(input_dev, ABS_PRESSURE, 0, MAX_10BIT, 0, 0);
+
+ input_dev->name = "TPS6507x Touchscreen";
+ input_dev->id.bustype = BUS_I2C;
+ input_dev->dev.parent = tsc->dev;
+
+ snprintf(tsc->phys, sizeof(tsc->phys),
+ "%s/input0", dev_name(tsc->dev));
+ input_dev->phys = tsc->phys;
+
+ dev_dbg(tsc->dev, "device: %s\n", input_dev->phys);
+
+ input_set_drvdata(input_dev, tsc);
+
+ tsc->input_dev = input_dev;
+
+ INIT_DELAYED_WORK(&tsc->work, tps6507x_ts_handler);
+
+ if (init_data) {
+ tsc->poll_period = init_data->poll_period;
+ tsc->vref = init_data->vref;
+ tsc->min_pressure = init_data->min_pressure;
+ input_dev->id.vendor = init_data->vendor;
+ input_dev->id.product = init_data->product;
+ input_dev->id.version = init_data->version;
+ } else {
+ tsc->poll_period = TSC_DEFAULT_POLL_PERIOD;
+ tsc->min_pressure = TPS_DEFAULT_MIN_PRESSURE;
+ }
+
+ error = tps6507x_adc_standby(tsc);
+ if (error)
+ goto err2;
+
+ error = input_register_device(input_dev);
+ if (error)
+ goto err2;
+
+ schd = schedule_delayed_work(&tsc->work,
+ msecs_to_jiffies(tsc->poll_period));
+
+ if (schd)
+ tsc->polling = 1;
+ else {
+ tsc->polling = 0;
+ dev_err(tsc->dev, "schedule failed");
+ goto err2;
+ }
+ platform_set_drvdata(pdev, tps6507x_dev);
+
+ return 0;
+
+err2:
+ cancel_delayed_work_sync(&tsc->work);
+ input_free_device(input_dev);
+err1:
+ kfree(tsc);
+ tps6507x_dev->ts = NULL;
+err0:
+ return error;
+}
+
+static int __devexit tps6507x_ts_remove(struct platform_device *pdev)
+{
+ struct tps6507x_dev *tps6507x_dev = platform_get_drvdata(pdev);
+ struct tps6507x_ts *tsc = tps6507x_dev->ts;
+ struct input_dev *input_dev = tsc->input_dev;
+
+ cancel_delayed_work_sync(&tsc->work);
+
+ input_unregister_device(input_dev);
+
+ tps6507x_dev->ts = NULL;
+ kfree(tsc);
+
+ return 0;
+}
+
+static struct platform_driver tps6507x_ts_driver = {
+ .driver = {
+ .name = "tps6507x-ts",
+ .owner = THIS_MODULE,
+ },
+ .probe = tps6507x_ts_probe,
+ .remove = __devexit_p(tps6507x_ts_remove),
+};
+
+static int __init tps6507x_ts_init(void)
+{
+ return platform_driver_register(&tps6507x_ts_driver);
+}
+module_init(tps6507x_ts_init);
+
+static void __exit tps6507x_ts_exit(void)
+{
+ platform_driver_unregister(&tps6507x_ts_driver);
+}
+module_exit(tps6507x_ts_exit);
+
+MODULE_AUTHOR("Todd Fischer <todd.fischer@ridgerun.com>");
+MODULE_DESCRIPTION("TPS6507x - TouchScreen driver");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:tps6507x-tsc");
diff --git a/drivers/input/touchscreen/tsc2005.c b/drivers/input/touchscreen/tsc2005.c
new file mode 100644
index 0000000..cbf0ff3
--- /dev/null
+++ b/drivers/input/touchscreen/tsc2005.c
@@ -0,0 +1,764 @@
+/*
+ * TSC2005 touchscreen driver
+ *
+ * Copyright (C) 2006-2010 Nokia Corporation
+ *
+ * Author: Lauri Leukkunen <lauri.leukkunen@nokia.com>
+ * based on TSC2301 driver by Klaus K. Pedersen <klaus.k.pedersen@nokia.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/input.h>
+#include <linux/interrupt.h>
+#include <linux/delay.h>
+#include <linux/pm.h>
+#include <linux/spi/spi.h>
+#include <linux/spi/tsc2005.h>
+
+/*
+ * The touchscreen interface operates as follows:
+ *
+ * 1) Pen is pressed against the touchscreen.
+ * 2) TSC2005 performs AD conversion.
+ * 3) After the conversion is done TSC2005 drives DAV line down.
+ * 4) GPIO IRQ is received and tsc2005_irq_thread() is scheduled.
+ * 5) tsc2005_irq_thread() queues up an spi transfer to fetch the x, y, z1, z2
+ * values.
+ * 6) tsc2005_irq_thread() reports coordinates to input layer and sets up
+ * tsc2005_penup_timer() to be called after TSC2005_PENUP_TIME_MS (40ms).
+ * 7) When the penup timer expires, there have not been touch or DAV interrupts
+ * during the last 40ms which means the pen has been lifted.
+ *
+ * ESD recovery via a hardware reset is done if the TSC2005 doesn't respond
+ * after a configurable period (in ms) of activity. If esd_timeout is 0, the
+ * watchdog is disabled.
+ */
+
+/* control byte 1 */
+#define TSC2005_CMD 0x80
+#define TSC2005_CMD_NORMAL 0x00
+#define TSC2005_CMD_STOP 0x01
+#define TSC2005_CMD_12BIT 0x04
+
+/* control byte 0 */
+#define TSC2005_REG_READ 0x0001
+#define TSC2005_REG_PND0 0x0002
+#define TSC2005_REG_X 0x0000
+#define TSC2005_REG_Y 0x0008
+#define TSC2005_REG_Z1 0x0010
+#define TSC2005_REG_Z2 0x0018
+#define TSC2005_REG_TEMP_HIGH 0x0050
+#define TSC2005_REG_CFR0 0x0060
+#define TSC2005_REG_CFR1 0x0068
+#define TSC2005_REG_CFR2 0x0070
+
+/* configuration register 0 */
+#define TSC2005_CFR0_PRECHARGE_276US 0x0040
+#define TSC2005_CFR0_STABTIME_1MS 0x0300
+#define TSC2005_CFR0_CLOCK_1MHZ 0x1000
+#define TSC2005_CFR0_RESOLUTION12 0x2000
+#define TSC2005_CFR0_PENMODE 0x8000
+#define TSC2005_CFR0_INITVALUE (TSC2005_CFR0_STABTIME_1MS | \
+ TSC2005_CFR0_CLOCK_1MHZ | \
+ TSC2005_CFR0_RESOLUTION12 | \
+ TSC2005_CFR0_PRECHARGE_276US | \
+ TSC2005_CFR0_PENMODE)
+
+/* bits common to both read and write of configuration register 0 */
+#define TSC2005_CFR0_RW_MASK 0x3fff
+
+/* configuration register 1 */
+#define TSC2005_CFR1_BATCHDELAY_4MS 0x0003
+#define TSC2005_CFR1_INITVALUE TSC2005_CFR1_BATCHDELAY_4MS
+
+/* configuration register 2 */
+#define TSC2005_CFR2_MAVE_Z 0x0004
+#define TSC2005_CFR2_MAVE_Y 0x0008
+#define TSC2005_CFR2_MAVE_X 0x0010
+#define TSC2005_CFR2_AVG_7 0x0800
+#define TSC2005_CFR2_MEDIUM_15 0x3000
+#define TSC2005_CFR2_INITVALUE (TSC2005_CFR2_MAVE_X | \
+ TSC2005_CFR2_MAVE_Y | \
+ TSC2005_CFR2_MAVE_Z | \
+ TSC2005_CFR2_MEDIUM_15 | \
+ TSC2005_CFR2_AVG_7)
+
+#define MAX_12BIT 0xfff
+#define TSC2005_SPI_MAX_SPEED_HZ 10000000
+#define TSC2005_PENUP_TIME_MS 40
+
+struct tsc2005_spi_rd {
+ struct spi_transfer spi_xfer;
+ u32 spi_tx;
+ u32 spi_rx;
+};
+
+struct tsc2005 {
+ struct spi_device *spi;
+
+ struct spi_message spi_read_msg;
+ struct tsc2005_spi_rd spi_x;
+ struct tsc2005_spi_rd spi_y;
+ struct tsc2005_spi_rd spi_z1;
+ struct tsc2005_spi_rd spi_z2;
+
+ struct input_dev *idev;
+ char phys[32];
+
+ struct mutex mutex;
+
+ /* raw copy of previous x,y,z */
+ int in_x;
+ int in_y;
+ int in_z1;
+ int in_z2;
+
+ spinlock_t lock;
+ struct timer_list penup_timer;
+
+ unsigned int esd_timeout;
+ struct delayed_work esd_work;
+ unsigned long last_valid_interrupt;
+
+ unsigned int x_plate_ohm;
+
+ bool opened;
+ bool suspended;
+
+ bool pen_down;
+
+ void (*set_reset)(bool enable);
+};
+
+static int tsc2005_cmd(struct tsc2005 *ts, u8 cmd)
+{
+ u8 tx = TSC2005_CMD | TSC2005_CMD_12BIT | cmd;
+ struct spi_transfer xfer = {
+ .tx_buf = &tx,
+ .len = 1,
+ .bits_per_word = 8,
+ };
+ struct spi_message msg;
+ int error;
+
+ spi_message_init(&msg);
+ spi_message_add_tail(&xfer, &msg);
+
+ error = spi_sync(ts->spi, &msg);
+ if (error) {
+ dev_err(&ts->spi->dev, "%s: failed, command: %x, error: %d\n",
+ __func__, cmd, error);
+ return error;
+ }
+
+ return 0;
+}
+
+static int tsc2005_write(struct tsc2005 *ts, u8 reg, u16 value)
+{
+ u32 tx = ((reg | TSC2005_REG_PND0) << 16) | value;
+ struct spi_transfer xfer = {
+ .tx_buf = &tx,
+ .len = 4,
+ .bits_per_word = 24,
+ };
+ struct spi_message msg;
+ int error;
+
+ spi_message_init(&msg);
+ spi_message_add_tail(&xfer, &msg);
+
+ error = spi_sync(ts->spi, &msg);
+ if (error) {
+ dev_err(&ts->spi->dev,
+ "%s: failed, register: %x, value: %x, error: %d\n",
+ __func__, reg, value, error);
+ return error;
+ }
+
+ return 0;
+}
+
+static void tsc2005_setup_read(struct tsc2005_spi_rd *rd, u8 reg, bool last)
+{
+ memset(rd, 0, sizeof(*rd));
+
+ rd->spi_tx = (reg | TSC2005_REG_READ) << 16;
+ rd->spi_xfer.tx_buf = &rd->spi_tx;
+ rd->spi_xfer.rx_buf = &rd->spi_rx;
+ rd->spi_xfer.len = 4;
+ rd->spi_xfer.bits_per_word = 24;
+ rd->spi_xfer.cs_change = !last;
+}
+
+static int tsc2005_read(struct tsc2005 *ts, u8 reg, u16 *value)
+{
+ struct tsc2005_spi_rd spi_rd;
+ struct spi_message msg;
+ int error;
+
+ tsc2005_setup_read(&spi_rd, reg, true);
+
+ spi_message_init(&msg);
+ spi_message_add_tail(&spi_rd.spi_xfer, &msg);
+
+ error = spi_sync(ts->spi, &msg);
+ if (error)
+ return error;
+
+ *value = spi_rd.spi_rx;
+ return 0;
+}
+
+static void tsc2005_update_pen_state(struct tsc2005 *ts,
+ int x, int y, int pressure)
+{
+ if (pressure) {
+ input_report_abs(ts->idev, ABS_X, x);
+ input_report_abs(ts->idev, ABS_Y, y);
+ input_report_abs(ts->idev, ABS_PRESSURE, pressure);
+ if (!ts->pen_down) {
+ input_report_key(ts->idev, BTN_TOUCH, !!pressure);
+ ts->pen_down = true;
+ }
+ } else {
+ input_report_abs(ts->idev, ABS_PRESSURE, 0);
+ if (ts->pen_down) {
+ input_report_key(ts->idev, BTN_TOUCH, 0);
+ ts->pen_down = false;
+ }
+ }
+ input_sync(ts->idev);
+ dev_dbg(&ts->spi->dev, "point(%4d,%4d), pressure (%4d)\n", x, y,
+ pressure);
+}
+
+static irqreturn_t tsc2005_irq_thread(int irq, void *_ts)
+{
+ struct tsc2005 *ts = _ts;
+ unsigned long flags;
+ unsigned int pressure;
+ u32 x, y;
+ u32 z1, z2;
+ int error;
+
+ /* read the coordinates */
+ error = spi_sync(ts->spi, &ts->spi_read_msg);
+ if (unlikely(error))
+ goto out;
+
+ x = ts->spi_x.spi_rx;
+ y = ts->spi_y.spi_rx;
+ z1 = ts->spi_z1.spi_rx;
+ z2 = ts->spi_z2.spi_rx;
+
+ /* validate position */
+ if (unlikely(x > MAX_12BIT || y > MAX_12BIT))
+ goto out;
+
+ /* Skip reading if the pressure components are out of range */
+ if (unlikely(z1 == 0 || z2 > MAX_12BIT || z1 >= z2))
+ goto out;
+
+ /*
+ * Skip point if this is a pen down with the exact same values as
+ * the value before pen-up - that implies SPI fed us stale data
+ */
+ if (!ts->pen_down &&
+ ts->in_x == x && ts->in_y == y &&
+ ts->in_z1 == z1 && ts->in_z2 == z2) {
+ goto out;
+ }
+
+ /*
+ * At this point we are happy we have a valid and useful reading.
+ * Remember it for later comparisons. We may now begin downsampling.
+ */
+ ts->in_x = x;
+ ts->in_y = y;
+ ts->in_z1 = z1;
+ ts->in_z2 = z2;
+
+ /* Compute touch pressure resistance using equation #1 */
+ pressure = x * (z2 - z1) / z1;
+ pressure = pressure * ts->x_plate_ohm / 4096;
+ if (unlikely(pressure > MAX_12BIT))
+ goto out;
+
+ spin_lock_irqsave(&ts->lock, flags);
+
+ tsc2005_update_pen_state(ts, x, y, pressure);
+ mod_timer(&ts->penup_timer,
+ jiffies + msecs_to_jiffies(TSC2005_PENUP_TIME_MS));
+
+ spin_unlock_irqrestore(&ts->lock, flags);
+
+ ts->last_valid_interrupt = jiffies;
+out:
+ return IRQ_HANDLED;
+}
+
+static void tsc2005_penup_timer(unsigned long data)
+{
+ struct tsc2005 *ts = (struct tsc2005 *)data;
+ unsigned long flags;
+
+ spin_lock_irqsave(&ts->lock, flags);
+ tsc2005_update_pen_state(ts, 0, 0, 0);
+ spin_unlock_irqrestore(&ts->lock, flags);
+}
+
+static void tsc2005_start_scan(struct tsc2005 *ts)
+{
+ tsc2005_write(ts, TSC2005_REG_CFR0, TSC2005_CFR0_INITVALUE);
+ tsc2005_write(ts, TSC2005_REG_CFR1, TSC2005_CFR1_INITVALUE);
+ tsc2005_write(ts, TSC2005_REG_CFR2, TSC2005_CFR2_INITVALUE);
+ tsc2005_cmd(ts, TSC2005_CMD_NORMAL);
+}
+
+static void tsc2005_stop_scan(struct tsc2005 *ts)
+{
+ tsc2005_cmd(ts, TSC2005_CMD_STOP);
+}
+
+/* must be called with ts->mutex held */
+static void __tsc2005_disable(struct tsc2005 *ts)
+{
+ tsc2005_stop_scan(ts);
+
+ disable_irq(ts->spi->irq);
+ del_timer_sync(&ts->penup_timer);
+
+ cancel_delayed_work_sync(&ts->esd_work);
+
+ enable_irq(ts->spi->irq);
+}
+
+/* must be called with ts->mutex held */
+static void __tsc2005_enable(struct tsc2005 *ts)
+{
+ tsc2005_start_scan(ts);
+
+ if (ts->esd_timeout && ts->set_reset) {
+ ts->last_valid_interrupt = jiffies;
+ schedule_delayed_work(&ts->esd_work,
+ round_jiffies_relative(
+ msecs_to_jiffies(ts->esd_timeout)));
+ }
+
+}
+
+static ssize_t tsc2005_selftest_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct spi_device *spi = to_spi_device(dev);
+ struct tsc2005 *ts = spi_get_drvdata(spi);
+ u16 temp_high;
+ u16 temp_high_orig;
+ u16 temp_high_test;
+ bool success = true;
+ int error;
+
+ mutex_lock(&ts->mutex);
+
+ /*
+ * Test TSC2005 communications via temp high register.
+ */
+ __tsc2005_disable(ts);
+
+ error = tsc2005_read(ts, TSC2005_REG_TEMP_HIGH, &temp_high_orig);
+ if (error) {
+ dev_warn(dev, "selftest failed: read error %d\n", error);
+ success = false;
+ goto out;
+ }
+
+ temp_high_test = (temp_high_orig - 1) & MAX_12BIT;
+
+ error = tsc2005_write(ts, TSC2005_REG_TEMP_HIGH, temp_high_test);
+ if (error) {
+ dev_warn(dev, "selftest failed: write error %d\n", error);
+ success = false;
+ goto out;
+ }
+
+ error = tsc2005_read(ts, TSC2005_REG_TEMP_HIGH, &temp_high);
+ if (error) {
+ dev_warn(dev, "selftest failed: read error %d after write\n",
+ error);
+ success = false;
+ goto out;
+ }
+
+ if (temp_high != temp_high_test) {
+ dev_warn(dev, "selftest failed: %d != %d\n",
+ temp_high, temp_high_test);
+ success = false;
+ }
+
+ /* hardware reset */
+ ts->set_reset(false);
+ usleep_range(100, 500); /* only 10us required */
+ ts->set_reset(true);
+
+ if (!success)
+ goto out;
+
+ /* test that the reset really happened */
+ error = tsc2005_read(ts, TSC2005_REG_TEMP_HIGH, &temp_high);
+ if (error) {
+ dev_warn(dev, "selftest failed: read error %d after reset\n",
+ error);
+ success = false;
+ goto out;
+ }
+
+ if (temp_high != temp_high_orig) {
+ dev_warn(dev, "selftest failed after reset: %d != %d\n",
+ temp_high, temp_high_orig);
+ success = false;
+ }
+
+out:
+ __tsc2005_enable(ts);
+ mutex_unlock(&ts->mutex);
+
+ return sprintf(buf, "%d\n", success);
+}
+
+static DEVICE_ATTR(selftest, S_IRUGO, tsc2005_selftest_show, NULL);
+
+static struct attribute *tsc2005_attrs[] = {
+ &dev_attr_selftest.attr,
+ NULL
+};
+
+static mode_t tsc2005_attr_is_visible(struct kobject *kobj,
+ struct attribute *attr, int n)
+{
+ struct device *dev = container_of(kobj, struct device, kobj);
+ struct spi_device *spi = to_spi_device(dev);
+ struct tsc2005 *ts = spi_get_drvdata(spi);
+ mode_t mode = attr->mode;
+
+ if (attr == &dev_attr_selftest.attr) {
+ if (!ts->set_reset)
+ mode = 0;
+ }
+
+ return mode;
+}
+
+static const struct attribute_group tsc2005_attr_group = {
+ .is_visible = tsc2005_attr_is_visible,
+ .attrs = tsc2005_attrs,
+};
+
+static void tsc2005_esd_work(struct work_struct *work)
+{
+ struct tsc2005 *ts = container_of(work, struct tsc2005, esd_work.work);
+ int error;
+ u16 r;
+
+ if (!mutex_trylock(&ts->mutex)) {
+ /*
+ * If the mutex is taken, it means that disable or enable is in
+ * progress. In that case just reschedule the work. If the work
+ * is not needed, it will be canceled by disable.
+ */
+ goto reschedule;
+ }
+
+ if (time_is_after_jiffies(ts->last_valid_interrupt +
+ msecs_to_jiffies(ts->esd_timeout)))
+ goto out;
+
+ /* We should be able to read register without disabling interrupts. */
+ error = tsc2005_read(ts, TSC2005_REG_CFR0, &r);
+ if (!error &&
+ !((r ^ TSC2005_CFR0_INITVALUE) & TSC2005_CFR0_RW_MASK)) {
+ goto out;
+ }
+
+ /*
+ * If we could not read our known value from configuration register 0
+ * then we should reset the controller as if from power-up and start
+ * scanning again.
+ */
+ dev_info(&ts->spi->dev, "TSC2005 not responding - resetting\n");
+
+ disable_irq(ts->spi->irq);
+ del_timer_sync(&ts->penup_timer);
+
+ tsc2005_update_pen_state(ts, 0, 0, 0);
+
+ ts->set_reset(false);
+ usleep_range(100, 500); /* only 10us required */
+ ts->set_reset(true);
+
+ enable_irq(ts->spi->irq);
+ tsc2005_start_scan(ts);
+
+out:
+ mutex_unlock(&ts->mutex);
+reschedule:
+ /* re-arm the watchdog */
+ schedule_delayed_work(&ts->esd_work,
+ round_jiffies_relative(
+ msecs_to_jiffies(ts->esd_timeout)));
+}
+
+static int tsc2005_open(struct input_dev *input)
+{
+ struct tsc2005 *ts = input_get_drvdata(input);
+
+ mutex_lock(&ts->mutex);
+
+ if (!ts->suspended)
+ __tsc2005_enable(ts);
+
+ ts->opened = true;
+
+ mutex_unlock(&ts->mutex);
+
+ return 0;
+}
+
+static void tsc2005_close(struct input_dev *input)
+{
+ struct tsc2005 *ts = input_get_drvdata(input);
+
+ mutex_lock(&ts->mutex);
+
+ if (!ts->suspended)
+ __tsc2005_disable(ts);
+
+ ts->opened = false;
+
+ mutex_unlock(&ts->mutex);
+}
+
+static void __devinit tsc2005_setup_spi_xfer(struct tsc2005 *ts)
+{
+ tsc2005_setup_read(&ts->spi_x, TSC2005_REG_X, false);
+ tsc2005_setup_read(&ts->spi_y, TSC2005_REG_Y, false);
+ tsc2005_setup_read(&ts->spi_z1, TSC2005_REG_Z1, false);
+ tsc2005_setup_read(&ts->spi_z2, TSC2005_REG_Z2, true);
+
+ spi_message_init(&ts->spi_read_msg);
+ spi_message_add_tail(&ts->spi_x.spi_xfer, &ts->spi_read_msg);
+ spi_message_add_tail(&ts->spi_y.spi_xfer, &ts->spi_read_msg);
+ spi_message_add_tail(&ts->spi_z1.spi_xfer, &ts->spi_read_msg);
+ spi_message_add_tail(&ts->spi_z2.spi_xfer, &ts->spi_read_msg);
+}
+
+static int __devinit tsc2005_probe(struct spi_device *spi)
+{
+ const struct tsc2005_platform_data *pdata = spi->dev.platform_data;
+ struct tsc2005 *ts;
+ struct input_dev *input_dev;
+ unsigned int max_x, max_y, max_p;
+ unsigned int fudge_x, fudge_y, fudge_p;
+ int error;
+
+ if (!pdata) {
+ dev_dbg(&spi->dev, "no platform data\n");
+ return -ENODEV;
+ }
+
+ fudge_x = pdata->ts_x_fudge ? : 4;
+ fudge_y = pdata->ts_y_fudge ? : 8;
+ fudge_p = pdata->ts_pressure_fudge ? : 2;
+ max_x = pdata->ts_x_max ? : MAX_12BIT;
+ max_y = pdata->ts_y_max ? : MAX_12BIT;
+ max_p = pdata->ts_pressure_max ? : MAX_12BIT;
+
+ if (spi->irq <= 0) {
+ dev_dbg(&spi->dev, "no irq\n");
+ return -ENODEV;
+ }
+
+ spi->mode = SPI_MODE_0;
+ spi->bits_per_word = 8;
+ if (!spi->max_speed_hz)
+ spi->max_speed_hz = TSC2005_SPI_MAX_SPEED_HZ;
+
+ error = spi_setup(spi);
+ if (error)
+ return error;
+
+ ts = kzalloc(sizeof(*ts), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!ts || !input_dev) {
+ error = -ENOMEM;
+ goto err_free_mem;
+ }
+
+ ts->spi = spi;
+ ts->idev = input_dev;
+
+ ts->x_plate_ohm = pdata->ts_x_plate_ohm ? : 280;
+ ts->esd_timeout = pdata->esd_timeout_ms;
+ ts->set_reset = pdata->set_reset;
+
+ mutex_init(&ts->mutex);
+
+ spin_lock_init(&ts->lock);
+ setup_timer(&ts->penup_timer, tsc2005_penup_timer, (unsigned long)ts);
+
+ INIT_DELAYED_WORK(&ts->esd_work, tsc2005_esd_work);
+
+ tsc2005_setup_spi_xfer(ts);
+
+ snprintf(ts->phys, sizeof(ts->phys),
+ "%s/input-ts", dev_name(&spi->dev));
+
+ input_dev->name = "TSC2005 touchscreen";
+ input_dev->phys = ts->phys;
+ input_dev->id.bustype = BUS_SPI;
+ input_dev->dev.parent = &spi->dev;
+ input_dev->evbit[0] = BIT(EV_ABS) | BIT(EV_KEY);
+ input_dev->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH);
+
+ input_set_abs_params(input_dev, ABS_X, 0, max_x, fudge_x, 0);
+ input_set_abs_params(input_dev, ABS_Y, 0, max_y, fudge_y, 0);
+ input_set_abs_params(input_dev, ABS_PRESSURE, 0, max_p, fudge_p, 0);
+
+ input_dev->open = tsc2005_open;
+ input_dev->close = tsc2005_close;
+
+ input_set_drvdata(input_dev, ts);
+
+ /* Ensure the touchscreen is off */
+ tsc2005_stop_scan(ts);
+
+ error = request_threaded_irq(spi->irq, NULL, tsc2005_irq_thread,
+ IRQF_TRIGGER_RISING, "tsc2005", ts);
+ if (error) {
+ dev_err(&spi->dev, "Failed to request irq, err: %d\n", error);
+ goto err_free_mem;
+ }
+
+ spi_set_drvdata(spi, ts);
+ error = sysfs_create_group(&spi->dev.kobj, &tsc2005_attr_group);
+ if (error) {
+ dev_err(&spi->dev,
+ "Failed to create sysfs attributes, err: %d\n", error);
+ goto err_clear_drvdata;
+ }
+
+ error = input_register_device(ts->idev);
+ if (error) {
+ dev_err(&spi->dev,
+ "Failed to register input device, err: %d\n", error);
+ goto err_remove_sysfs;
+ }
+
+ irq_set_irq_wake(spi->irq, 1);
+ return 0;
+
+err_remove_sysfs:
+ sysfs_remove_group(&spi->dev.kobj, &tsc2005_attr_group);
+err_clear_drvdata:
+ spi_set_drvdata(spi, NULL);
+ free_irq(spi->irq, ts);
+err_free_mem:
+ input_free_device(input_dev);
+ kfree(ts);
+ return error;
+}
+
+static int __devexit tsc2005_remove(struct spi_device *spi)
+{
+ struct tsc2005 *ts = spi_get_drvdata(spi);
+
+ sysfs_remove_group(&ts->spi->dev.kobj, &tsc2005_attr_group);
+
+ free_irq(ts->spi->irq, ts);
+ input_unregister_device(ts->idev);
+ kfree(ts);
+
+ spi_set_drvdata(spi, NULL);
+ return 0;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int tsc2005_suspend(struct device *dev)
+{
+ struct spi_device *spi = to_spi_device(dev);
+ struct tsc2005 *ts = spi_get_drvdata(spi);
+
+ mutex_lock(&ts->mutex);
+
+ if (!ts->suspended && ts->opened)
+ __tsc2005_disable(ts);
+
+ ts->suspended = true;
+
+ mutex_unlock(&ts->mutex);
+
+ return 0;
+}
+
+static int tsc2005_resume(struct device *dev)
+{
+ struct spi_device *spi = to_spi_device(dev);
+ struct tsc2005 *ts = spi_get_drvdata(spi);
+
+ mutex_lock(&ts->mutex);
+
+ if (ts->suspended && ts->opened)
+ __tsc2005_enable(ts);
+
+ ts->suspended = false;
+
+ mutex_unlock(&ts->mutex);
+
+ return 0;
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(tsc2005_pm_ops, tsc2005_suspend, tsc2005_resume);
+
+static struct spi_driver tsc2005_driver = {
+ .driver = {
+ .name = "tsc2005",
+ .owner = THIS_MODULE,
+ .pm = &tsc2005_pm_ops,
+ },
+ .probe = tsc2005_probe,
+ .remove = __devexit_p(tsc2005_remove),
+};
+
+static int __init tsc2005_init(void)
+{
+ return spi_register_driver(&tsc2005_driver);
+}
+module_init(tsc2005_init);
+
+static void __exit tsc2005_exit(void)
+{
+ spi_unregister_driver(&tsc2005_driver);
+}
+module_exit(tsc2005_exit);
+
+MODULE_AUTHOR("Lauri Leukkunen <lauri.leukkunen@nokia.com>");
+MODULE_DESCRIPTION("TSC2005 Touchscreen Driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/input/touchscreen/tsc2007.c b/drivers/input/touchscreen/tsc2007.c
new file mode 100644
index 0000000..1f674cb
--- /dev/null
+++ b/drivers/input/touchscreen/tsc2007.c
@@ -0,0 +1,417 @@
+/*
+ * drivers/input/touchscreen/tsc2007.c
+ *
+ * Copyright (c) 2008 MtekVision Co., Ltd.
+ * Kwangwoo Lee <kwlee@mtekvision.com>
+ *
+ * Using code from:
+ * - ads7846.c
+ * Copyright (c) 2005 David Brownell
+ * Copyright (c) 2006 Nokia Corporation
+ * - corgi_ts.c
+ * Copyright (C) 2004-2005 Richard Purdie
+ * - omap_ts.[hc], ads7846.h, ts_osk.c
+ * Copyright (C) 2002 MontaVista Software
+ * Copyright (C) 2004 Texas Instruments
+ * Copyright (C) 2005 Dirk Behme
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/input.h>
+#include <linux/interrupt.h>
+#include <linux/i2c.h>
+#include <linux/i2c/tsc2007.h>
+
+#define TSC2007_MEASURE_TEMP0 (0x0 << 4)
+#define TSC2007_MEASURE_AUX (0x2 << 4)
+#define TSC2007_MEASURE_TEMP1 (0x4 << 4)
+#define TSC2007_ACTIVATE_XN (0x8 << 4)
+#define TSC2007_ACTIVATE_YN (0x9 << 4)
+#define TSC2007_ACTIVATE_YP_XN (0xa << 4)
+#define TSC2007_SETUP (0xb << 4)
+#define TSC2007_MEASURE_X (0xc << 4)
+#define TSC2007_MEASURE_Y (0xd << 4)
+#define TSC2007_MEASURE_Z1 (0xe << 4)
+#define TSC2007_MEASURE_Z2 (0xf << 4)
+
+#define TSC2007_POWER_OFF_IRQ_EN (0x0 << 2)
+#define TSC2007_ADC_ON_IRQ_DIS0 (0x1 << 2)
+#define TSC2007_ADC_OFF_IRQ_EN (0x2 << 2)
+#define TSC2007_ADC_ON_IRQ_DIS1 (0x3 << 2)
+
+#define TSC2007_12BIT (0x0 << 1)
+#define TSC2007_8BIT (0x1 << 1)
+
+#define MAX_12BIT ((1 << 12) - 1)
+
+#define ADC_ON_12BIT (TSC2007_12BIT | TSC2007_ADC_ON_IRQ_DIS0)
+
+#define READ_Y (ADC_ON_12BIT | TSC2007_MEASURE_Y)
+#define READ_Z1 (ADC_ON_12BIT | TSC2007_MEASURE_Z1)
+#define READ_Z2 (ADC_ON_12BIT | TSC2007_MEASURE_Z2)
+#define READ_X (ADC_ON_12BIT | TSC2007_MEASURE_X)
+#define PWRDOWN (TSC2007_12BIT | TSC2007_POWER_OFF_IRQ_EN)
+
+struct ts_event {
+ u16 x;
+ u16 y;
+ u16 z1, z2;
+};
+
+struct tsc2007 {
+ struct input_dev *input;
+ char phys[32];
+
+ struct i2c_client *client;
+
+ u16 model;
+ u16 x_plate_ohms;
+ u16 max_rt;
+ unsigned long poll_delay;
+ unsigned long poll_period;
+
+ int irq;
+
+ wait_queue_head_t wait;
+ bool stopped;
+
+ int (*get_pendown_state)(void);
+ void (*clear_penirq)(void);
+};
+
+static inline int tsc2007_xfer(struct tsc2007 *tsc, u8 cmd)
+{
+ s32 data;
+ u16 val;
+
+ data = i2c_smbus_read_word_data(tsc->client, cmd);
+ if (data < 0) {
+ dev_err(&tsc->client->dev, "i2c io error: %d\n", data);
+ return data;
+ }
+
+ /* The protocol and raw data format from i2c interface:
+ * S Addr Wr [A] Comm [A] S Addr Rd [A] [DataLow] A [DataHigh] NA P
+ * Where DataLow has [D11-D4], DataHigh has [D3-D0 << 4 | Dummy 4bit].
+ */
+ val = swab16(data) >> 4;
+
+ dev_dbg(&tsc->client->dev, "data: 0x%x, val: 0x%x\n", data, val);
+
+ return val;
+}
+
+static void tsc2007_read_values(struct tsc2007 *tsc, struct ts_event *tc)
+{
+ /* y- still on; turn on only y+ (and ADC) */
+ tc->y = tsc2007_xfer(tsc, READ_Y);
+
+ /* turn y- off, x+ on, then leave in lowpower */
+ tc->x = tsc2007_xfer(tsc, READ_X);
+
+ /* turn y+ off, x- on; we'll use formula #1 */
+ tc->z1 = tsc2007_xfer(tsc, READ_Z1);
+ tc->z2 = tsc2007_xfer(tsc, READ_Z2);
+
+ /* Prepare for next touch reading - power down ADC, enable PENIRQ */
+ tsc2007_xfer(tsc, PWRDOWN);
+}
+
+static u32 tsc2007_calculate_pressure(struct tsc2007 *tsc, struct ts_event *tc)
+{
+ u32 rt = 0;
+
+ /* range filtering */
+ if (tc->x == MAX_12BIT)
+ tc->x = 0;
+
+ if (likely(tc->x && tc->z1)) {
+ /* compute touch pressure resistance using equation #1 */
+ rt = tc->z2 - tc->z1;
+ rt *= tc->x;
+ rt *= tsc->x_plate_ohms;
+ rt /= tc->z1;
+ rt = (rt + 2047) >> 12;
+ }
+
+ return rt;
+}
+
+static bool tsc2007_is_pen_down(struct tsc2007 *ts)
+{
+ /*
+ * NOTE: We can't rely on the pressure to determine the pen down
+ * state, even though this controller has a pressure sensor.
+ * The pressure value can fluctuate for quite a while after
+ * lifting the pen and in some cases may not even settle at the
+ * expected value.
+ *
+ * The only safe way to check for the pen up condition is in the
+ * work function by reading the pen signal state (it's a GPIO
+ * and IRQ). Unfortunately such callback is not always available,
+ * in that case we assume that the pen is down and expect caller
+ * to fall back on the pressure reading.
+ */
+
+ if (!ts->get_pendown_state)
+ return true;
+
+ return ts->get_pendown_state();
+}
+
+static irqreturn_t tsc2007_soft_irq(int irq, void *handle)
+{
+ struct tsc2007 *ts = handle;
+ struct input_dev *input = ts->input;
+ struct ts_event tc;
+ u32 rt;
+
+ while (!ts->stopped && tsc2007_is_pen_down(ts)) {
+
+ /* pen is down, continue with the measurement */
+ tsc2007_read_values(ts, &tc);
+
+ rt = tsc2007_calculate_pressure(ts, &tc);
+
+ if (rt == 0 && !ts->get_pendown_state) {
+ /*
+ * If pressure reported is 0 and we don't have
+ * callback to check pendown state, we have to
+ * assume that pen was lifted up.
+ */
+ break;
+ }
+
+ if (rt <= ts->max_rt) {
+ dev_dbg(&ts->client->dev,
+ "DOWN point(%4d,%4d), pressure (%4u)\n",
+ tc.x, tc.y, rt);
+
+ input_report_key(input, BTN_TOUCH, 1);
+ input_report_abs(input, ABS_X, tc.x);
+ input_report_abs(input, ABS_Y, tc.y);
+ input_report_abs(input, ABS_PRESSURE, rt);
+
+ input_sync(input);
+
+ } else {
+ /*
+ * Sample found inconsistent by debouncing or pressure is
+ * beyond the maximum. Don't report it to user space,
+ * repeat at least once more the measurement.
+ */
+ dev_dbg(&ts->client->dev, "ignored pressure %d\n", rt);
+ }
+
+ wait_event_timeout(ts->wait, ts->stopped,
+ msecs_to_jiffies(ts->poll_period));
+ }
+
+ dev_dbg(&ts->client->dev, "UP\n");
+
+ input_report_key(input, BTN_TOUCH, 0);
+ input_report_abs(input, ABS_PRESSURE, 0);
+ input_sync(input);
+
+ if (ts->clear_penirq)
+ ts->clear_penirq();
+
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t tsc2007_hard_irq(int irq, void *handle)
+{
+ struct tsc2007 *ts = handle;
+
+ if (!ts->get_pendown_state || likely(ts->get_pendown_state()))
+ return IRQ_WAKE_THREAD;
+
+ if (ts->clear_penirq)
+ ts->clear_penirq();
+
+ return IRQ_HANDLED;
+}
+
+static void tsc2007_stop(struct tsc2007 *ts)
+{
+ ts->stopped = true;
+ mb();
+ wake_up(&ts->wait);
+
+ disable_irq(ts->irq);
+}
+
+static int tsc2007_open(struct input_dev *input_dev)
+{
+ struct tsc2007 *ts = input_get_drvdata(input_dev);
+ int err;
+
+ ts->stopped = false;
+ mb();
+
+ enable_irq(ts->irq);
+
+ /* Prepare for touch readings - power down ADC and enable PENIRQ */
+ err = tsc2007_xfer(ts, PWRDOWN);
+ if (err < 0) {
+ tsc2007_stop(ts);
+ return err;
+ }
+
+ return 0;
+}
+
+static void tsc2007_close(struct input_dev *input_dev)
+{
+ struct tsc2007 *ts = input_get_drvdata(input_dev);
+
+ tsc2007_stop(ts);
+}
+
+static int __devinit tsc2007_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct tsc2007 *ts;
+ struct tsc2007_platform_data *pdata = client->dev.platform_data;
+ struct input_dev *input_dev;
+ int err;
+
+ if (!pdata) {
+ dev_err(&client->dev, "platform data is required!\n");
+ return -EINVAL;
+ }
+
+ if (!i2c_check_functionality(client->adapter,
+ I2C_FUNC_SMBUS_READ_WORD_DATA))
+ return -EIO;
+
+ ts = kzalloc(sizeof(struct tsc2007), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!ts || !input_dev) {
+ err = -ENOMEM;
+ goto err_free_mem;
+ }
+
+ ts->client = client;
+ ts->irq = client->irq;
+ ts->input = input_dev;
+ init_waitqueue_head(&ts->wait);
+
+ ts->model = pdata->model;
+ ts->x_plate_ohms = pdata->x_plate_ohms;
+ ts->max_rt = pdata->max_rt ? : MAX_12BIT;
+ ts->poll_delay = pdata->poll_delay ? : 1;
+ ts->poll_period = pdata->poll_period ? : 1;
+ ts->get_pendown_state = pdata->get_pendown_state;
+ ts->clear_penirq = pdata->clear_penirq;
+
+ if (pdata->x_plate_ohms == 0) {
+ dev_err(&client->dev, "x_plate_ohms is not set up in platform data");
+ err = -EINVAL;
+ goto err_free_mem;
+ }
+
+ snprintf(ts->phys, sizeof(ts->phys),
+ "%s/input0", dev_name(&client->dev));
+
+ input_dev->name = "TSC2007 Touchscreen";
+ input_dev->phys = ts->phys;
+ input_dev->id.bustype = BUS_I2C;
+
+ input_dev->open = tsc2007_open;
+ input_dev->close = tsc2007_close;
+
+ input_set_drvdata(input_dev, ts);
+
+ input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
+ input_dev->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH);
+
+ input_set_abs_params(input_dev, ABS_X, 0, MAX_12BIT, pdata->fuzzx, 0);
+ input_set_abs_params(input_dev, ABS_Y, 0, MAX_12BIT, pdata->fuzzy, 0);
+ input_set_abs_params(input_dev, ABS_PRESSURE, 0, MAX_12BIT,
+ pdata->fuzzz, 0);
+
+ if (pdata->init_platform_hw)
+ pdata->init_platform_hw();
+
+ err = request_threaded_irq(ts->irq, tsc2007_hard_irq, tsc2007_soft_irq,
+ IRQF_ONESHOT, client->dev.driver->name, ts);
+ if (err < 0) {
+ dev_err(&client->dev, "irq %d busy?\n", ts->irq);
+ goto err_free_mem;
+ }
+
+ tsc2007_stop(ts);
+
+ err = input_register_device(input_dev);
+ if (err)
+ goto err_free_irq;
+
+ i2c_set_clientdata(client, ts);
+
+ return 0;
+
+ err_free_irq:
+ free_irq(ts->irq, ts);
+ if (pdata->exit_platform_hw)
+ pdata->exit_platform_hw();
+ err_free_mem:
+ input_free_device(input_dev);
+ kfree(ts);
+ return err;
+}
+
+static int __devexit tsc2007_remove(struct i2c_client *client)
+{
+ struct tsc2007 *ts = i2c_get_clientdata(client);
+ struct tsc2007_platform_data *pdata = client->dev.platform_data;
+
+ free_irq(ts->irq, ts);
+
+ if (pdata->exit_platform_hw)
+ pdata->exit_platform_hw();
+
+ input_unregister_device(ts->input);
+ kfree(ts);
+
+ return 0;
+}
+
+static const struct i2c_device_id tsc2007_idtable[] = {
+ { "tsc2007", 0 },
+ { }
+};
+
+MODULE_DEVICE_TABLE(i2c, tsc2007_idtable);
+
+static struct i2c_driver tsc2007_driver = {
+ .driver = {
+ .owner = THIS_MODULE,
+ .name = "tsc2007"
+ },
+ .id_table = tsc2007_idtable,
+ .probe = tsc2007_probe,
+ .remove = __devexit_p(tsc2007_remove),
+};
+
+static int __init tsc2007_init(void)
+{
+ return i2c_add_driver(&tsc2007_driver);
+}
+
+static void __exit tsc2007_exit(void)
+{
+ i2c_del_driver(&tsc2007_driver);
+}
+
+module_init(tsc2007_init);
+module_exit(tsc2007_exit);
+
+MODULE_AUTHOR("Kwangwoo Lee <kwlee@mtekvision.com>");
+MODULE_DESCRIPTION("TSC2007 TouchScreen Driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/input/touchscreen/tsc40.c b/drivers/input/touchscreen/tsc40.c
new file mode 100644
index 0000000..29d5ed4
--- /dev/null
+++ b/drivers/input/touchscreen/tsc40.c
@@ -0,0 +1,184 @@
+/*
+ * TSC-40 serial touchscreen driver. It should be compatible with
+ * TSC-10 and 25.
+ *
+ * Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
+ * License: GPLv2 as published by the FSF.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/input.h>
+#include <linux/serio.h>
+#include <linux/init.h>
+
+#define PACKET_LENGTH 5
+struct tsc_ser {
+ struct input_dev *dev;
+ struct serio *serio;
+ u32 idx;
+ unsigned char data[PACKET_LENGTH];
+ char phys[32];
+};
+
+static void tsc_process_data(struct tsc_ser *ptsc)
+{
+ struct input_dev *dev = ptsc->dev;
+ u8 *data = ptsc->data;
+ u32 x;
+ u32 y;
+
+ x = ((data[1] & 0x03) << 8) | data[2];
+ y = ((data[3] & 0x03) << 8) | data[4];
+
+ input_report_abs(dev, ABS_X, x);
+ input_report_abs(dev, ABS_Y, y);
+ input_report_key(dev, BTN_TOUCH, 1);
+
+ input_sync(dev);
+}
+
+static irqreturn_t tsc_interrupt(struct serio *serio,
+ unsigned char data, unsigned int flags)
+{
+ struct tsc_ser *ptsc = serio_get_drvdata(serio);
+ struct input_dev *dev = ptsc->dev;
+
+ ptsc->data[ptsc->idx] = data;
+ switch (ptsc->idx++) {
+ case 0:
+ if (unlikely((data & 0x3e) != 0x10)) {
+ dev_dbg(&serio->dev,
+ "unsynchronized packet start (0x%02x)\n", data);
+ ptsc->idx = 0;
+ } else if (!(data & 0x01)) {
+ input_report_key(dev, BTN_TOUCH, 0);
+ input_sync(dev);
+ ptsc->idx = 0;
+ }
+ break;
+
+ case 1:
+ case 3:
+ if (unlikely(data & 0xfc)) {
+ dev_dbg(&serio->dev,
+ "unsynchronized data 0x%02x at offset %d\n",
+ data, ptsc->idx - 1);
+ ptsc->idx = 0;
+ }
+ break;
+
+ case 4:
+ tsc_process_data(ptsc);
+ ptsc->idx = 0;
+ break;
+ }
+
+ return IRQ_HANDLED;
+}
+
+static int tsc_connect(struct serio *serio, struct serio_driver *drv)
+{
+ struct tsc_ser *ptsc;
+ struct input_dev *input_dev;
+ int error;
+
+ ptsc = kzalloc(sizeof(struct tsc_ser), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!ptsc || !input_dev) {
+ error = -ENOMEM;
+ goto fail1;
+ }
+
+ ptsc->serio = serio;
+ ptsc->dev = input_dev;
+ snprintf(ptsc->phys, sizeof(ptsc->phys), "%s/input0", serio->phys);
+
+ input_dev->name = "TSC-10/25/40 Serial TouchScreen";
+ input_dev->phys = ptsc->phys;
+ input_dev->id.bustype = BUS_RS232;
+ input_dev->id.vendor = SERIO_TSC40;
+ input_dev->id.product = 40;
+ input_dev->id.version = 0x0001;
+ input_dev->dev.parent = &serio->dev;
+
+ input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
+ __set_bit(BTN_TOUCH, input_dev->keybit);
+ input_set_abs_params(ptsc->dev, ABS_X, 0, 0x3ff, 0, 0);
+ input_set_abs_params(ptsc->dev, ABS_Y, 0, 0x3ff, 0, 0);
+ input_set_abs_params(ptsc->dev, ABS_PRESSURE, 0, 0, 0, 0);
+
+ serio_set_drvdata(serio, ptsc);
+
+ error = serio_open(serio, drv);
+ if (error)
+ goto fail2;
+
+ error = input_register_device(ptsc->dev);
+ if (error)
+ goto fail3;
+
+ return 0;
+
+fail3:
+ serio_close(serio);
+fail2:
+ serio_set_drvdata(serio, NULL);
+fail1:
+ input_free_device(input_dev);
+ kfree(ptsc);
+ return error;
+}
+
+static void tsc_disconnect(struct serio *serio)
+{
+ struct tsc_ser *ptsc = serio_get_drvdata(serio);
+
+ serio_close(serio);
+
+ input_unregister_device(ptsc->dev);
+ kfree(ptsc);
+
+ serio_set_drvdata(serio, NULL);
+}
+
+static struct serio_device_id tsc_serio_ids[] = {
+ {
+ .type = SERIO_RS232,
+ .proto = SERIO_TSC40,
+ .id = SERIO_ANY,
+ .extra = SERIO_ANY,
+ },
+ { 0 }
+};
+MODULE_DEVICE_TABLE(serio, tsc_serio_ids);
+
+#define DRIVER_DESC "TSC-10/25/40 serial touchscreen driver"
+
+static struct serio_driver tsc_drv = {
+ .driver = {
+ .name = "tsc40",
+ },
+ .description = DRIVER_DESC,
+ .id_table = tsc_serio_ids,
+ .interrupt = tsc_interrupt,
+ .connect = tsc_connect,
+ .disconnect = tsc_disconnect,
+};
+
+static int __init tsc_ser_init(void)
+{
+ return serio_register_driver(&tsc_drv);
+}
+module_init(tsc_ser_init);
+
+static void __exit tsc_exit(void)
+{
+ serio_unregister_driver(&tsc_drv);
+}
+module_exit(tsc_exit);
+
+MODULE_AUTHOR("Sebastian Andrzej Siewior <bigeasy@linutronix.de>");
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/input/touchscreen/ucb1400_ts.c b/drivers/input/touchscreen/ucb1400_ts.c
new file mode 100644
index 0000000..3b5b5df
--- /dev/null
+++ b/drivers/input/touchscreen/ucb1400_ts.c
@@ -0,0 +1,486 @@
+/*
+ * Philips UCB1400 touchscreen driver
+ *
+ * Author: Nicolas Pitre
+ * Created: September 25, 2006
+ * Copyright: MontaVista Software, Inc.
+ *
+ * Spliting done by: Marek Vasut <marek.vasut@gmail.com>
+ * If something doesn't work and it worked before spliting, e-mail me,
+ * dont bother Nicolas please ;-)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This code is heavily based on ucb1x00-*.c copyrighted by Russell King
+ * covering the UCB1100, UCB1200 and UCB1300.. Support for the UCB1400 has
+ * been made separate from ucb1x00-core/ucb1x00-ts on Russell's request.
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/completion.h>
+#include <linux/delay.h>
+#include <linux/input.h>
+#include <linux/device.h>
+#include <linux/interrupt.h>
+#include <linux/suspend.h>
+#include <linux/kthread.h>
+#include <linux/freezer.h>
+#include <linux/ucb1400.h>
+
+static int adcsync;
+static int ts_delay = 55; /* us */
+static int ts_delay_pressure; /* us */
+
+/* Switch to interrupt mode. */
+static inline void ucb1400_ts_mode_int(struct snd_ac97 *ac97)
+{
+ ucb1400_reg_write(ac97, UCB_TS_CR,
+ UCB_TS_CR_TSMX_POW | UCB_TS_CR_TSPX_POW |
+ UCB_TS_CR_TSMY_GND | UCB_TS_CR_TSPY_GND |
+ UCB_TS_CR_MODE_INT);
+}
+
+/*
+ * Switch to pressure mode, and read pressure. We don't need to wait
+ * here, since both plates are being driven.
+ */
+static inline unsigned int ucb1400_ts_read_pressure(struct ucb1400_ts *ucb)
+{
+ ucb1400_reg_write(ucb->ac97, UCB_TS_CR,
+ UCB_TS_CR_TSMX_POW | UCB_TS_CR_TSPX_POW |
+ UCB_TS_CR_TSMY_GND | UCB_TS_CR_TSPY_GND |
+ UCB_TS_CR_MODE_PRES | UCB_TS_CR_BIAS_ENA);
+ udelay(ts_delay_pressure);
+ return ucb1400_adc_read(ucb->ac97, UCB_ADC_INP_TSPY, adcsync);
+}
+
+/*
+ * Switch to X position mode and measure Y plate. We switch the plate
+ * configuration in pressure mode, then switch to position mode. This
+ * gives a faster response time. Even so, we need to wait about 55us
+ * for things to stabilise.
+ */
+static inline unsigned int ucb1400_ts_read_xpos(struct ucb1400_ts *ucb)
+{
+ ucb1400_reg_write(ucb->ac97, UCB_TS_CR,
+ UCB_TS_CR_TSMX_GND | UCB_TS_CR_TSPX_POW |
+ UCB_TS_CR_MODE_PRES | UCB_TS_CR_BIAS_ENA);
+ ucb1400_reg_write(ucb->ac97, UCB_TS_CR,
+ UCB_TS_CR_TSMX_GND | UCB_TS_CR_TSPX_POW |
+ UCB_TS_CR_MODE_PRES | UCB_TS_CR_BIAS_ENA);
+ ucb1400_reg_write(ucb->ac97, UCB_TS_CR,
+ UCB_TS_CR_TSMX_GND | UCB_TS_CR_TSPX_POW |
+ UCB_TS_CR_MODE_POS | UCB_TS_CR_BIAS_ENA);
+
+ udelay(ts_delay);
+
+ return ucb1400_adc_read(ucb->ac97, UCB_ADC_INP_TSPY, adcsync);
+}
+
+/*
+ * Switch to Y position mode and measure X plate. We switch the plate
+ * configuration in pressure mode, then switch to position mode. This
+ * gives a faster response time. Even so, we need to wait about 55us
+ * for things to stabilise.
+ */
+static inline unsigned int ucb1400_ts_read_ypos(struct ucb1400_ts *ucb)
+{
+ ucb1400_reg_write(ucb->ac97, UCB_TS_CR,
+ UCB_TS_CR_TSMY_GND | UCB_TS_CR_TSPY_POW |
+ UCB_TS_CR_MODE_PRES | UCB_TS_CR_BIAS_ENA);
+ ucb1400_reg_write(ucb->ac97, UCB_TS_CR,
+ UCB_TS_CR_TSMY_GND | UCB_TS_CR_TSPY_POW |
+ UCB_TS_CR_MODE_PRES | UCB_TS_CR_BIAS_ENA);
+ ucb1400_reg_write(ucb->ac97, UCB_TS_CR,
+ UCB_TS_CR_TSMY_GND | UCB_TS_CR_TSPY_POW |
+ UCB_TS_CR_MODE_POS | UCB_TS_CR_BIAS_ENA);
+
+ udelay(ts_delay);
+
+ return ucb1400_adc_read(ucb->ac97, UCB_ADC_INP_TSPX, adcsync);
+}
+
+/*
+ * Switch to X plate resistance mode. Set MX to ground, PX to
+ * supply. Measure current.
+ */
+static inline unsigned int ucb1400_ts_read_xres(struct ucb1400_ts *ucb)
+{
+ ucb1400_reg_write(ucb->ac97, UCB_TS_CR,
+ UCB_TS_CR_TSMX_GND | UCB_TS_CR_TSPX_POW |
+ UCB_TS_CR_MODE_PRES | UCB_TS_CR_BIAS_ENA);
+ return ucb1400_adc_read(ucb->ac97, 0, adcsync);
+}
+
+/*
+ * Switch to Y plate resistance mode. Set MY to ground, PY to
+ * supply. Measure current.
+ */
+static inline unsigned int ucb1400_ts_read_yres(struct ucb1400_ts *ucb)
+{
+ ucb1400_reg_write(ucb->ac97, UCB_TS_CR,
+ UCB_TS_CR_TSMY_GND | UCB_TS_CR_TSPY_POW |
+ UCB_TS_CR_MODE_PRES | UCB_TS_CR_BIAS_ENA);
+ return ucb1400_adc_read(ucb->ac97, 0, adcsync);
+}
+
+static inline int ucb1400_ts_pen_up(struct snd_ac97 *ac97)
+{
+ unsigned short val = ucb1400_reg_read(ac97, UCB_TS_CR);
+
+ return val & (UCB_TS_CR_TSPX_LOW | UCB_TS_CR_TSMX_LOW);
+}
+
+static inline void ucb1400_ts_irq_enable(struct snd_ac97 *ac97)
+{
+ ucb1400_reg_write(ac97, UCB_IE_CLEAR, UCB_IE_TSPX);
+ ucb1400_reg_write(ac97, UCB_IE_CLEAR, 0);
+ ucb1400_reg_write(ac97, UCB_IE_FAL, UCB_IE_TSPX);
+}
+
+static inline void ucb1400_ts_irq_disable(struct snd_ac97 *ac97)
+{
+ ucb1400_reg_write(ac97, UCB_IE_FAL, 0);
+}
+
+static void ucb1400_ts_evt_add(struct input_dev *idev, u16 pressure, u16 x, u16 y)
+{
+ input_report_abs(idev, ABS_X, x);
+ input_report_abs(idev, ABS_Y, y);
+ input_report_abs(idev, ABS_PRESSURE, pressure);
+ input_report_key(idev, BTN_TOUCH, 1);
+ input_sync(idev);
+}
+
+static void ucb1400_ts_event_release(struct input_dev *idev)
+{
+ input_report_abs(idev, ABS_PRESSURE, 0);
+ input_report_key(idev, BTN_TOUCH, 0);
+ input_sync(idev);
+}
+
+static void ucb1400_handle_pending_irq(struct ucb1400_ts *ucb)
+{
+ unsigned int isr;
+
+ isr = ucb1400_reg_read(ucb->ac97, UCB_IE_STATUS);
+ ucb1400_reg_write(ucb->ac97, UCB_IE_CLEAR, isr);
+ ucb1400_reg_write(ucb->ac97, UCB_IE_CLEAR, 0);
+
+ if (isr & UCB_IE_TSPX)
+ ucb1400_ts_irq_disable(ucb->ac97);
+ else
+ dev_dbg(&ucb->ts_idev->dev, "ucb1400: unexpected IE_STATUS = %#x\n", isr);
+ enable_irq(ucb->irq);
+}
+
+static int ucb1400_ts_thread(void *_ucb)
+{
+ struct ucb1400_ts *ucb = _ucb;
+ struct task_struct *tsk = current;
+ int valid = 0;
+ struct sched_param param = { .sched_priority = 1 };
+
+ sched_setscheduler(tsk, SCHED_FIFO, ¶m);
+
+ set_freezable();
+ while (!kthread_should_stop()) {
+ unsigned int x, y, p;
+ long timeout;
+
+ ucb->ts_restart = 0;
+
+ if (ucb->irq_pending) {
+ ucb->irq_pending = 0;
+ ucb1400_handle_pending_irq(ucb);
+ }
+
+ ucb1400_adc_enable(ucb->ac97);
+ x = ucb1400_ts_read_xpos(ucb);
+ y = ucb1400_ts_read_ypos(ucb);
+ p = ucb1400_ts_read_pressure(ucb);
+ ucb1400_adc_disable(ucb->ac97);
+
+ /* Switch back to interrupt mode. */
+ ucb1400_ts_mode_int(ucb->ac97);
+
+ msleep(10);
+
+ if (ucb1400_ts_pen_up(ucb->ac97)) {
+ ucb1400_ts_irq_enable(ucb->ac97);
+
+ /*
+ * If we spat out a valid sample set last time,
+ * spit out a "pen off" sample here.
+ */
+ if (valid) {
+ ucb1400_ts_event_release(ucb->ts_idev);
+ valid = 0;
+ }
+
+ timeout = MAX_SCHEDULE_TIMEOUT;
+ } else {
+ valid = 1;
+ ucb1400_ts_evt_add(ucb->ts_idev, p, x, y);
+ timeout = msecs_to_jiffies(10);
+ }
+
+ wait_event_freezable_timeout(ucb->ts_wait,
+ ucb->irq_pending || ucb->ts_restart ||
+ kthread_should_stop(), timeout);
+ }
+
+ /* Send the "pen off" if we are stopping with the pen still active */
+ if (valid)
+ ucb1400_ts_event_release(ucb->ts_idev);
+
+ ucb->ts_task = NULL;
+ return 0;
+}
+
+/*
+ * A restriction with interrupts exists when using the ucb1400, as
+ * the codec read/write routines may sleep while waiting for codec
+ * access completion and uses semaphores for access control to the
+ * AC97 bus. A complete codec read cycle could take anywhere from
+ * 60 to 100uSec so we *definitely* don't want to spin inside the
+ * interrupt handler waiting for codec access. So, we handle the
+ * interrupt by scheduling a RT kernel thread to run in process
+ * context instead of interrupt context.
+ */
+static irqreturn_t ucb1400_hard_irq(int irqnr, void *devid)
+{
+ struct ucb1400_ts *ucb = devid;
+
+ if (irqnr == ucb->irq) {
+ disable_irq_nosync(ucb->irq);
+ ucb->irq_pending = 1;
+ wake_up(&ucb->ts_wait);
+ return IRQ_HANDLED;
+ }
+ return IRQ_NONE;
+}
+
+static int ucb1400_ts_open(struct input_dev *idev)
+{
+ struct ucb1400_ts *ucb = input_get_drvdata(idev);
+ int ret = 0;
+
+ BUG_ON(ucb->ts_task);
+
+ ucb->ts_task = kthread_run(ucb1400_ts_thread, ucb, "UCB1400_ts");
+ if (IS_ERR(ucb->ts_task)) {
+ ret = PTR_ERR(ucb->ts_task);
+ ucb->ts_task = NULL;
+ }
+
+ return ret;
+}
+
+static void ucb1400_ts_close(struct input_dev *idev)
+{
+ struct ucb1400_ts *ucb = input_get_drvdata(idev);
+
+ if (ucb->ts_task)
+ kthread_stop(ucb->ts_task);
+
+ ucb1400_ts_irq_disable(ucb->ac97);
+ ucb1400_reg_write(ucb->ac97, UCB_TS_CR, 0);
+}
+
+#ifndef NO_IRQ
+#define NO_IRQ 0
+#endif
+
+/*
+ * Try to probe our interrupt, rather than relying on lots of
+ * hard-coded machine dependencies.
+ */
+static int ucb1400_ts_detect_irq(struct ucb1400_ts *ucb)
+{
+ unsigned long mask, timeout;
+
+ mask = probe_irq_on();
+
+ /* Enable the ADC interrupt. */
+ ucb1400_reg_write(ucb->ac97, UCB_IE_RIS, UCB_IE_ADC);
+ ucb1400_reg_write(ucb->ac97, UCB_IE_FAL, UCB_IE_ADC);
+ ucb1400_reg_write(ucb->ac97, UCB_IE_CLEAR, 0xffff);
+ ucb1400_reg_write(ucb->ac97, UCB_IE_CLEAR, 0);
+
+ /* Cause an ADC interrupt. */
+ ucb1400_reg_write(ucb->ac97, UCB_ADC_CR, UCB_ADC_ENA);
+ ucb1400_reg_write(ucb->ac97, UCB_ADC_CR, UCB_ADC_ENA | UCB_ADC_START);
+
+ /* Wait for the conversion to complete. */
+ timeout = jiffies + HZ/2;
+ while (!(ucb1400_reg_read(ucb->ac97, UCB_ADC_DATA) &
+ UCB_ADC_DAT_VALID)) {
+ cpu_relax();
+ if (time_after(jiffies, timeout)) {
+ printk(KERN_ERR "ucb1400: timed out in IRQ probe\n");
+ probe_irq_off(mask);
+ return -ENODEV;
+ }
+ }
+ ucb1400_reg_write(ucb->ac97, UCB_ADC_CR, 0);
+
+ /* Disable and clear interrupt. */
+ ucb1400_reg_write(ucb->ac97, UCB_IE_RIS, 0);
+ ucb1400_reg_write(ucb->ac97, UCB_IE_FAL, 0);
+ ucb1400_reg_write(ucb->ac97, UCB_IE_CLEAR, 0xffff);
+ ucb1400_reg_write(ucb->ac97, UCB_IE_CLEAR, 0);
+
+ /* Read triggered interrupt. */
+ ucb->irq = probe_irq_off(mask);
+ if (ucb->irq < 0 || ucb->irq == NO_IRQ)
+ return -ENODEV;
+
+ return 0;
+}
+
+static int ucb1400_ts_probe(struct platform_device *dev)
+{
+ int error, x_res, y_res;
+ u16 fcsr;
+ struct ucb1400_ts *ucb = dev->dev.platform_data;
+
+ ucb->ts_idev = input_allocate_device();
+ if (!ucb->ts_idev) {
+ error = -ENOMEM;
+ goto err;
+ }
+
+ /* Only in case the IRQ line wasn't supplied, try detecting it */
+ if (ucb->irq < 0) {
+ error = ucb1400_ts_detect_irq(ucb);
+ if (error) {
+ printk(KERN_ERR "UCB1400: IRQ probe failed\n");
+ goto err_free_devs;
+ }
+ }
+
+ init_waitqueue_head(&ucb->ts_wait);
+
+ error = request_irq(ucb->irq, ucb1400_hard_irq, IRQF_TRIGGER_RISING,
+ "UCB1400", ucb);
+ if (error) {
+ printk(KERN_ERR "ucb1400: unable to grab irq%d: %d\n",
+ ucb->irq, error);
+ goto err_free_devs;
+ }
+ printk(KERN_DEBUG "UCB1400: found IRQ %d\n", ucb->irq);
+
+ input_set_drvdata(ucb->ts_idev, ucb);
+
+ ucb->ts_idev->dev.parent = &dev->dev;
+ ucb->ts_idev->name = "UCB1400 touchscreen interface";
+ ucb->ts_idev->id.vendor = ucb1400_reg_read(ucb->ac97,
+ AC97_VENDOR_ID1);
+ ucb->ts_idev->id.product = ucb->id;
+ ucb->ts_idev->open = ucb1400_ts_open;
+ ucb->ts_idev->close = ucb1400_ts_close;
+ ucb->ts_idev->evbit[0] = BIT_MASK(EV_ABS) | BIT_MASK(EV_KEY);
+ ucb->ts_idev->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH);
+
+ /*
+ * Enable ADC filter to prevent horrible jitter on Colibri.
+ * This also further reduces jitter on boards where ADCSYNC
+ * pin is connected.
+ */
+ fcsr = ucb1400_reg_read(ucb->ac97, UCB_FCSR);
+ ucb1400_reg_write(ucb->ac97, UCB_FCSR, fcsr | UCB_FCSR_AVE);
+
+ ucb1400_adc_enable(ucb->ac97);
+ x_res = ucb1400_ts_read_xres(ucb);
+ y_res = ucb1400_ts_read_yres(ucb);
+ ucb1400_adc_disable(ucb->ac97);
+ printk(KERN_DEBUG "UCB1400: x/y = %d/%d\n", x_res, y_res);
+
+ input_set_abs_params(ucb->ts_idev, ABS_X, 0, x_res, 0, 0);
+ input_set_abs_params(ucb->ts_idev, ABS_Y, 0, y_res, 0, 0);
+ input_set_abs_params(ucb->ts_idev, ABS_PRESSURE, 0, 0, 0, 0);
+
+ error = input_register_device(ucb->ts_idev);
+ if (error)
+ goto err_free_irq;
+
+ return 0;
+
+err_free_irq:
+ free_irq(ucb->irq, ucb);
+err_free_devs:
+ input_free_device(ucb->ts_idev);
+err:
+ return error;
+
+}
+
+static int ucb1400_ts_remove(struct platform_device *dev)
+{
+ struct ucb1400_ts *ucb = dev->dev.platform_data;
+
+ free_irq(ucb->irq, ucb);
+ input_unregister_device(ucb->ts_idev);
+ return 0;
+}
+
+#ifdef CONFIG_PM
+static int ucb1400_ts_resume(struct platform_device *dev)
+{
+ struct ucb1400_ts *ucb = dev->dev.platform_data;
+
+ if (ucb->ts_task) {
+ /*
+ * Restart the TS thread to ensure the
+ * TS interrupt mode is set up again
+ * after sleep.
+ */
+ ucb->ts_restart = 1;
+ wake_up(&ucb->ts_wait);
+ }
+ return 0;
+}
+#else
+#define ucb1400_ts_resume NULL
+#endif
+
+static struct platform_driver ucb1400_ts_driver = {
+ .probe = ucb1400_ts_probe,
+ .remove = ucb1400_ts_remove,
+ .resume = ucb1400_ts_resume,
+ .driver = {
+ .name = "ucb1400_ts",
+ },
+};
+
+static int __init ucb1400_ts_init(void)
+{
+ return platform_driver_register(&ucb1400_ts_driver);
+}
+
+static void __exit ucb1400_ts_exit(void)
+{
+ platform_driver_unregister(&ucb1400_ts_driver);
+}
+
+module_param(adcsync, bool, 0444);
+MODULE_PARM_DESC(adcsync, "Synchronize touch readings with ADCSYNC pin.");
+
+module_param(ts_delay, int, 0444);
+MODULE_PARM_DESC(ts_delay, "Delay between panel setup and"
+ " position read. Default = 55us.");
+
+module_param(ts_delay_pressure, int, 0444);
+MODULE_PARM_DESC(ts_delay_pressure,
+ "delay between panel setup and pressure read."
+ " Default = 0us.");
+
+module_init(ucb1400_ts_init);
+module_exit(ucb1400_ts_exit);
+
+MODULE_DESCRIPTION("Philips UCB1400 touchscreen driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/input/touchscreen/usbtouchscreen.c b/drivers/input/touchscreen/usbtouchscreen.c
new file mode 100644
index 0000000..73fd664
--- /dev/null
+++ b/drivers/input/touchscreen/usbtouchscreen.c
@@ -0,0 +1,1602 @@
+/******************************************************************************
+ * usbtouchscreen.c
+ * Driver for USB Touchscreens, supporting those devices:
+ * - eGalax Touchkit
+ * includes eTurboTouch CT-410/510/700
+ * - 3M/Microtouch EX II series
+ * - ITM
+ * - PanJit TouchSet
+ * - eTurboTouch
+ * - Gunze AHL61
+ * - DMC TSC-10/25
+ * - IRTOUCHSYSTEMS/UNITOP
+ * - IdealTEK URTC1000
+ * - General Touch
+ * - GoTop Super_Q2/GogoPen/PenPower tablets
+ * - JASTEC USB touch controller/DigiTech DTR-02U
+ * - Zytronic capacitive touchscreen
+ * - NEXIO/iNexio
+ *
+ * Copyright (C) 2004-2007 by Daniel Ritz <daniel.ritz@gmx.ch>
+ * Copyright (C) by Todd E. Johnson (mtouchusb.c)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * Driver is based on touchkitusb.c
+ * - ITM parts are from itmtouch.c
+ * - 3M parts are from mtouchusb.c
+ * - PanJit parts are from an unmerged driver by Lanslott Gish
+ * - DMC TSC 10/25 are from Holger Schurig, with ideas from an unmerged
+ * driver from Marius Vollmer
+ *
+ *****************************************************************************/
+
+//#define DEBUG
+
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/input.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/usb.h>
+#include <linux/usb/input.h>
+#include <linux/hid.h>
+
+
+#define DRIVER_VERSION "v0.6"
+#define DRIVER_AUTHOR "Daniel Ritz <daniel.ritz@gmx.ch>"
+#define DRIVER_DESC "USB Touchscreen Driver"
+
+static int swap_xy;
+module_param(swap_xy, bool, 0644);
+MODULE_PARM_DESC(swap_xy, "If set X and Y axes are swapped.");
+
+static int hwcalib_xy;
+module_param(hwcalib_xy, bool, 0644);
+MODULE_PARM_DESC(hwcalib_xy, "If set hw-calibrated X/Y are used if available");
+
+/* device specifc data/functions */
+struct usbtouch_usb;
+struct usbtouch_device_info {
+ int min_xc, max_xc;
+ int min_yc, max_yc;
+ int min_press, max_press;
+ int rept_size;
+
+ /*
+ * Always service the USB devices irq not just when the input device is
+ * open. This is useful when devices have a watchdog which prevents us
+ * from periodically polling the device. Leave this unset unless your
+ * touchscreen device requires it, as it does consume more of the USB
+ * bandwidth.
+ */
+ bool irq_always;
+
+ void (*process_pkt) (struct usbtouch_usb *usbtouch, unsigned char *pkt, int len);
+
+ /*
+ * used to get the packet len. possible return values:
+ * > 0: packet len
+ * = 0: skip one byte
+ * < 0: -return value more bytes needed
+ */
+ int (*get_pkt_len) (unsigned char *pkt, int len);
+
+ int (*read_data) (struct usbtouch_usb *usbtouch, unsigned char *pkt);
+ int (*alloc) (struct usbtouch_usb *usbtouch);
+ int (*init) (struct usbtouch_usb *usbtouch);
+ void (*exit) (struct usbtouch_usb *usbtouch);
+};
+
+/* a usbtouch device */
+struct usbtouch_usb {
+ unsigned char *data;
+ dma_addr_t data_dma;
+ unsigned char *buffer;
+ int buf_len;
+ struct urb *irq;
+ struct usb_interface *interface;
+ struct input_dev *input;
+ struct usbtouch_device_info *type;
+ char name[128];
+ char phys[64];
+ void *priv;
+
+ int x, y;
+ int touch, press;
+};
+
+
+/* device types */
+enum {
+ DEVTYPE_IGNORE = -1,
+ DEVTYPE_EGALAX,
+ DEVTYPE_PANJIT,
+ DEVTYPE_3M,
+ DEVTYPE_ITM,
+ DEVTYPE_ETURBO,
+ DEVTYPE_GUNZE,
+ DEVTYPE_DMC_TSC10,
+ DEVTYPE_IRTOUCH,
+ DEVTYPE_IDEALTEK,
+ DEVTYPE_GENERAL_TOUCH,
+ DEVTYPE_GOTOP,
+ DEVTYPE_JASTEC,
+ DEVTYPE_E2I,
+ DEVTYPE_ZYTRONIC,
+ DEVTYPE_TC45USB,
+ DEVTYPE_NEXIO,
+};
+
+#define USB_DEVICE_HID_CLASS(vend, prod) \
+ .match_flags = USB_DEVICE_ID_MATCH_INT_CLASS \
+ | USB_DEVICE_ID_MATCH_INT_PROTOCOL \
+ | USB_DEVICE_ID_MATCH_DEVICE, \
+ .idVendor = (vend), \
+ .idProduct = (prod), \
+ .bInterfaceClass = USB_INTERFACE_CLASS_HID, \
+ .bInterfaceProtocol = USB_INTERFACE_PROTOCOL_MOUSE
+
+static const struct usb_device_id usbtouch_devices[] = {
+#ifdef CONFIG_TOUCHSCREEN_USB_EGALAX
+ /* ignore the HID capable devices, handled by usbhid */
+ {USB_DEVICE_HID_CLASS(0x0eef, 0x0001), .driver_info = DEVTYPE_IGNORE},
+ {USB_DEVICE_HID_CLASS(0x0eef, 0x0002), .driver_info = DEVTYPE_IGNORE},
+
+ /* normal device IDs */
+ {USB_DEVICE(0x3823, 0x0001), .driver_info = DEVTYPE_EGALAX},
+ {USB_DEVICE(0x3823, 0x0002), .driver_info = DEVTYPE_EGALAX},
+ {USB_DEVICE(0x0123, 0x0001), .driver_info = DEVTYPE_EGALAX},
+ {USB_DEVICE(0x0eef, 0x0001), .driver_info = DEVTYPE_EGALAX},
+ {USB_DEVICE(0x0eef, 0x0002), .driver_info = DEVTYPE_EGALAX},
+ {USB_DEVICE(0x1234, 0x0001), .driver_info = DEVTYPE_EGALAX},
+ {USB_DEVICE(0x1234, 0x0002), .driver_info = DEVTYPE_EGALAX},
+#endif
+
+#ifdef CONFIG_TOUCHSCREEN_USB_PANJIT
+ {USB_DEVICE(0x134c, 0x0001), .driver_info = DEVTYPE_PANJIT},
+ {USB_DEVICE(0x134c, 0x0002), .driver_info = DEVTYPE_PANJIT},
+ {USB_DEVICE(0x134c, 0x0003), .driver_info = DEVTYPE_PANJIT},
+ {USB_DEVICE(0x134c, 0x0004), .driver_info = DEVTYPE_PANJIT},
+#endif
+
+#ifdef CONFIG_TOUCHSCREEN_USB_3M
+ {USB_DEVICE(0x0596, 0x0001), .driver_info = DEVTYPE_3M},
+#endif
+
+#ifdef CONFIG_TOUCHSCREEN_USB_ITM
+ {USB_DEVICE(0x0403, 0xf9e9), .driver_info = DEVTYPE_ITM},
+ {USB_DEVICE(0x16e3, 0xf9e9), .driver_info = DEVTYPE_ITM},
+#endif
+
+#ifdef CONFIG_TOUCHSCREEN_USB_ETURBO
+ {USB_DEVICE(0x1234, 0x5678), .driver_info = DEVTYPE_ETURBO},
+#endif
+
+#ifdef CONFIG_TOUCHSCREEN_USB_GUNZE
+ {USB_DEVICE(0x0637, 0x0001), .driver_info = DEVTYPE_GUNZE},
+#endif
+
+#ifdef CONFIG_TOUCHSCREEN_USB_DMC_TSC10
+ {USB_DEVICE(0x0afa, 0x03e8), .driver_info = DEVTYPE_DMC_TSC10},
+#endif
+
+#ifdef CONFIG_TOUCHSCREEN_USB_IRTOUCH
+ {USB_DEVICE(0x595a, 0x0001), .driver_info = DEVTYPE_IRTOUCH},
+ {USB_DEVICE(0x6615, 0x0001), .driver_info = DEVTYPE_IRTOUCH},
+#endif
+
+#ifdef CONFIG_TOUCHSCREEN_USB_IDEALTEK
+ {USB_DEVICE(0x1391, 0x1000), .driver_info = DEVTYPE_IDEALTEK},
+#endif
+
+#ifdef CONFIG_TOUCHSCREEN_USB_GENERAL_TOUCH
+ {USB_DEVICE(0x0dfc, 0x0001), .driver_info = DEVTYPE_GENERAL_TOUCH},
+#endif
+
+#ifdef CONFIG_TOUCHSCREEN_USB_GOTOP
+ {USB_DEVICE(0x08f2, 0x007f), .driver_info = DEVTYPE_GOTOP},
+ {USB_DEVICE(0x08f2, 0x00ce), .driver_info = DEVTYPE_GOTOP},
+ {USB_DEVICE(0x08f2, 0x00f4), .driver_info = DEVTYPE_GOTOP},
+#endif
+
+#ifdef CONFIG_TOUCHSCREEN_USB_JASTEC
+ {USB_DEVICE(0x0f92, 0x0001), .driver_info = DEVTYPE_JASTEC},
+#endif
+
+#ifdef CONFIG_TOUCHSCREEN_USB_E2I
+ {USB_DEVICE(0x1ac7, 0x0001), .driver_info = DEVTYPE_E2I},
+#endif
+
+#ifdef CONFIG_TOUCHSCREEN_USB_ZYTRONIC
+ {USB_DEVICE(0x14c8, 0x0003), .driver_info = DEVTYPE_ZYTRONIC},
+#endif
+
+#ifdef CONFIG_TOUCHSCREEN_USB_ETT_TC45USB
+ /* TC5UH */
+ {USB_DEVICE(0x0664, 0x0309), .driver_info = DEVTYPE_TC45USB},
+ /* TC4UM */
+ {USB_DEVICE(0x0664, 0x0306), .driver_info = DEVTYPE_TC45USB},
+#endif
+
+#ifdef CONFIG_TOUCHSCREEN_USB_NEXIO
+ /* data interface only */
+ {USB_DEVICE_AND_INTERFACE_INFO(0x10f0, 0x2002, 0x0a, 0x00, 0x00),
+ .driver_info = DEVTYPE_NEXIO},
+ {USB_DEVICE_AND_INTERFACE_INFO(0x1870, 0x0001, 0x0a, 0x00, 0x00),
+ .driver_info = DEVTYPE_NEXIO},
+#endif
+
+ {}
+};
+
+
+/*****************************************************************************
+ * e2i Part
+ */
+
+#ifdef CONFIG_TOUCHSCREEN_USB_E2I
+static int e2i_init(struct usbtouch_usb *usbtouch)
+{
+ int ret;
+ struct usb_device *udev = interface_to_usbdev(usbtouch->interface);
+
+ ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
+ 0x01, 0x02, 0x0000, 0x0081,
+ NULL, 0, USB_CTRL_SET_TIMEOUT);
+
+ dbg("%s - usb_control_msg - E2I_RESET - bytes|err: %d",
+ __func__, ret);
+ return ret;
+}
+
+static int e2i_read_data(struct usbtouch_usb *dev, unsigned char *pkt)
+{
+ int tmp = (pkt[0] << 8) | pkt[1];
+ dev->x = (pkt[2] << 8) | pkt[3];
+ dev->y = (pkt[4] << 8) | pkt[5];
+
+ tmp = tmp - 0xA000;
+ dev->touch = (tmp > 0);
+ dev->press = (tmp > 0 ? tmp : 0);
+
+ return 1;
+}
+#endif
+
+
+/*****************************************************************************
+ * eGalax part
+ */
+
+#ifdef CONFIG_TOUCHSCREEN_USB_EGALAX
+
+#ifndef MULTI_PACKET
+#define MULTI_PACKET
+#endif
+
+#define EGALAX_PKT_TYPE_MASK 0xFE
+#define EGALAX_PKT_TYPE_REPT 0x80
+#define EGALAX_PKT_TYPE_DIAG 0x0A
+
+static int egalax_read_data(struct usbtouch_usb *dev, unsigned char *pkt)
+{
+ if ((pkt[0] & EGALAX_PKT_TYPE_MASK) != EGALAX_PKT_TYPE_REPT)
+ return 0;
+
+ dev->x = ((pkt[3] & 0x0F) << 7) | (pkt[4] & 0x7F);
+ dev->y = ((pkt[1] & 0x0F) << 7) | (pkt[2] & 0x7F);
+ dev->touch = pkt[0] & 0x01;
+
+ return 1;
+}
+
+static int egalax_get_pkt_len(unsigned char *buf, int len)
+{
+ switch (buf[0] & EGALAX_PKT_TYPE_MASK) {
+ case EGALAX_PKT_TYPE_REPT:
+ return 5;
+
+ case EGALAX_PKT_TYPE_DIAG:
+ if (len < 2)
+ return -1;
+
+ return buf[1] + 2;
+ }
+
+ return 0;
+}
+#endif
+
+
+/*****************************************************************************
+ * PanJit Part
+ */
+#ifdef CONFIG_TOUCHSCREEN_USB_PANJIT
+static int panjit_read_data(struct usbtouch_usb *dev, unsigned char *pkt)
+{
+ dev->x = ((pkt[2] & 0x0F) << 8) | pkt[1];
+ dev->y = ((pkt[4] & 0x0F) << 8) | pkt[3];
+ dev->touch = pkt[0] & 0x01;
+
+ return 1;
+}
+#endif
+
+
+/*****************************************************************************
+ * 3M/Microtouch Part
+ */
+#ifdef CONFIG_TOUCHSCREEN_USB_3M
+
+#define MTOUCHUSB_ASYNC_REPORT 1
+#define MTOUCHUSB_RESET 7
+#define MTOUCHUSB_REQ_CTRLLR_ID 10
+
+static int mtouch_read_data(struct usbtouch_usb *dev, unsigned char *pkt)
+{
+ if (hwcalib_xy) {
+ dev->x = (pkt[4] << 8) | pkt[3];
+ dev->y = 0xffff - ((pkt[6] << 8) | pkt[5]);
+ } else {
+ dev->x = (pkt[8] << 8) | pkt[7];
+ dev->y = (pkt[10] << 8) | pkt[9];
+ }
+ dev->touch = (pkt[2] & 0x40) ? 1 : 0;
+
+ return 1;
+}
+
+static int mtouch_init(struct usbtouch_usb *usbtouch)
+{
+ int ret, i;
+ struct usb_device *udev = interface_to_usbdev(usbtouch->interface);
+
+ ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
+ MTOUCHUSB_RESET,
+ USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
+ 1, 0, NULL, 0, USB_CTRL_SET_TIMEOUT);
+ dbg("%s - usb_control_msg - MTOUCHUSB_RESET - bytes|err: %d",
+ __func__, ret);
+ if (ret < 0)
+ return ret;
+ msleep(150);
+
+ for (i = 0; i < 3; i++) {
+ ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
+ MTOUCHUSB_ASYNC_REPORT,
+ USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
+ 1, 1, NULL, 0, USB_CTRL_SET_TIMEOUT);
+ dbg("%s - usb_control_msg - MTOUCHUSB_ASYNC_REPORT - bytes|err: %d",
+ __func__, ret);
+ if (ret >= 0)
+ break;
+ if (ret != -EPIPE)
+ return ret;
+ }
+
+ /* Default min/max xy are the raw values, override if using hw-calib */
+ if (hwcalib_xy) {
+ input_set_abs_params(usbtouch->input, ABS_X, 0, 0xffff, 0, 0);
+ input_set_abs_params(usbtouch->input, ABS_Y, 0, 0xffff, 0, 0);
+ }
+
+ return 0;
+}
+#endif
+
+
+/*****************************************************************************
+ * ITM Part
+ */
+#ifdef CONFIG_TOUCHSCREEN_USB_ITM
+static int itm_read_data(struct usbtouch_usb *dev, unsigned char *pkt)
+{
+ int touch;
+ /*
+ * ITM devices report invalid x/y data if not touched.
+ * if the screen was touched before but is not touched any more
+ * report touch as 0 with the last valid x/y data once. then stop
+ * reporting data until touched again.
+ */
+ dev->press = ((pkt[2] & 0x01) << 7) | (pkt[5] & 0x7F);
+
+ touch = ~pkt[7] & 0x20;
+ if (!touch) {
+ if (dev->touch) {
+ dev->touch = 0;
+ return 1;
+ }
+
+ return 0;
+ }
+
+ dev->x = ((pkt[0] & 0x1F) << 7) | (pkt[3] & 0x7F);
+ dev->y = ((pkt[1] & 0x1F) << 7) | (pkt[4] & 0x7F);
+ dev->touch = touch;
+
+ return 1;
+}
+#endif
+
+
+/*****************************************************************************
+ * eTurboTouch part
+ */
+#ifdef CONFIG_TOUCHSCREEN_USB_ETURBO
+#ifndef MULTI_PACKET
+#define MULTI_PACKET
+#endif
+static int eturbo_read_data(struct usbtouch_usb *dev, unsigned char *pkt)
+{
+ unsigned int shift;
+
+ /* packets should start with sync */
+ if (!(pkt[0] & 0x80))
+ return 0;
+
+ shift = (6 - (pkt[0] & 0x03));
+ dev->x = ((pkt[3] << 7) | pkt[4]) >> shift;
+ dev->y = ((pkt[1] << 7) | pkt[2]) >> shift;
+ dev->touch = (pkt[0] & 0x10) ? 1 : 0;
+
+ return 1;
+}
+
+static int eturbo_get_pkt_len(unsigned char *buf, int len)
+{
+ if (buf[0] & 0x80)
+ return 5;
+ if (buf[0] == 0x01)
+ return 3;
+ return 0;
+}
+#endif
+
+
+/*****************************************************************************
+ * Gunze part
+ */
+#ifdef CONFIG_TOUCHSCREEN_USB_GUNZE
+static int gunze_read_data(struct usbtouch_usb *dev, unsigned char *pkt)
+{
+ if (!(pkt[0] & 0x80) || ((pkt[1] | pkt[2] | pkt[3]) & 0x80))
+ return 0;
+
+ dev->x = ((pkt[0] & 0x1F) << 7) | (pkt[2] & 0x7F);
+ dev->y = ((pkt[1] & 0x1F) << 7) | (pkt[3] & 0x7F);
+ dev->touch = pkt[0] & 0x20;
+
+ return 1;
+}
+#endif
+
+/*****************************************************************************
+ * DMC TSC-10/25 Part
+ *
+ * Documentation about the controller and it's protocol can be found at
+ * http://www.dmccoltd.com/files/controler/tsc10usb_pi_e.pdf
+ * http://www.dmccoltd.com/files/controler/tsc25_usb_e.pdf
+ */
+#ifdef CONFIG_TOUCHSCREEN_USB_DMC_TSC10
+
+/* supported data rates. currently using 130 */
+#define TSC10_RATE_POINT 0x50
+#define TSC10_RATE_30 0x40
+#define TSC10_RATE_50 0x41
+#define TSC10_RATE_80 0x42
+#define TSC10_RATE_100 0x43
+#define TSC10_RATE_130 0x44
+#define TSC10_RATE_150 0x45
+
+/* commands */
+#define TSC10_CMD_RESET 0x55
+#define TSC10_CMD_RATE 0x05
+#define TSC10_CMD_DATA1 0x01
+
+static int dmc_tsc10_init(struct usbtouch_usb *usbtouch)
+{
+ struct usb_device *dev = interface_to_usbdev(usbtouch->interface);
+ int ret = -ENOMEM;
+ unsigned char *buf;
+
+ buf = kmalloc(2, GFP_NOIO);
+ if (!buf)
+ goto err_nobuf;
+ /* reset */
+ buf[0] = buf[1] = 0xFF;
+ ret = usb_control_msg(dev, usb_rcvctrlpipe (dev, 0),
+ TSC10_CMD_RESET,
+ USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
+ 0, 0, buf, 2, USB_CTRL_SET_TIMEOUT);
+ if (ret < 0)
+ goto err_out;
+ if (buf[0] != 0x06) {
+ ret = -ENODEV;
+ goto err_out;
+ }
+
+ /* set coordinate output rate */
+ buf[0] = buf[1] = 0xFF;
+ ret = usb_control_msg(dev, usb_rcvctrlpipe (dev, 0),
+ TSC10_CMD_RATE,
+ USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
+ TSC10_RATE_150, 0, buf, 2, USB_CTRL_SET_TIMEOUT);
+ if (ret < 0)
+ goto err_out;
+ if ((buf[0] != 0x06) && (buf[0] != 0x15 || buf[1] != 0x01)) {
+ ret = -ENODEV;
+ goto err_out;
+ }
+
+ /* start sending data */
+ ret = usb_control_msg(dev, usb_rcvctrlpipe (dev, 0),
+ TSC10_CMD_DATA1,
+ USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
+ 0, 0, NULL, 0, USB_CTRL_SET_TIMEOUT);
+err_out:
+ kfree(buf);
+err_nobuf:
+ return ret;
+}
+
+
+static int dmc_tsc10_read_data(struct usbtouch_usb *dev, unsigned char *pkt)
+{
+ dev->x = ((pkt[2] & 0x03) << 8) | pkt[1];
+ dev->y = ((pkt[4] & 0x03) << 8) | pkt[3];
+ dev->touch = pkt[0] & 0x01;
+
+ return 1;
+}
+#endif
+
+
+/*****************************************************************************
+ * IRTOUCH Part
+ */
+#ifdef CONFIG_TOUCHSCREEN_USB_IRTOUCH
+static int irtouch_read_data(struct usbtouch_usb *dev, unsigned char *pkt)
+{
+ dev->x = (pkt[3] << 8) | pkt[2];
+ dev->y = (pkt[5] << 8) | pkt[4];
+ dev->touch = (pkt[1] & 0x03) ? 1 : 0;
+
+ return 1;
+}
+#endif
+
+/*****************************************************************************
+ * ET&T TC5UH/TC4UM part
+ */
+#ifdef CONFIG_TOUCHSCREEN_USB_ETT_TC45USB
+static int tc45usb_read_data(struct usbtouch_usb *dev, unsigned char *pkt)
+{
+ dev->x = ((pkt[2] & 0x0F) << 8) | pkt[1];
+ dev->y = ((pkt[4] & 0x0F) << 8) | pkt[3];
+ dev->touch = pkt[0] & 0x01;
+
+ return 1;
+}
+#endif
+
+/*****************************************************************************
+ * IdealTEK URTC1000 Part
+ */
+#ifdef CONFIG_TOUCHSCREEN_USB_IDEALTEK
+#ifndef MULTI_PACKET
+#define MULTI_PACKET
+#endif
+static int idealtek_get_pkt_len(unsigned char *buf, int len)
+{
+ if (buf[0] & 0x80)
+ return 5;
+ if (buf[0] == 0x01)
+ return len;
+ return 0;
+}
+
+static int idealtek_read_data(struct usbtouch_usb *dev, unsigned char *pkt)
+{
+ switch (pkt[0] & 0x98) {
+ case 0x88:
+ /* touch data in IdealTEK mode */
+ dev->x = (pkt[1] << 5) | (pkt[2] >> 2);
+ dev->y = (pkt[3] << 5) | (pkt[4] >> 2);
+ dev->touch = (pkt[0] & 0x40) ? 1 : 0;
+ return 1;
+
+ case 0x98:
+ /* touch data in MT emulation mode */
+ dev->x = (pkt[2] << 5) | (pkt[1] >> 2);
+ dev->y = (pkt[4] << 5) | (pkt[3] >> 2);
+ dev->touch = (pkt[0] & 0x40) ? 1 : 0;
+ return 1;
+
+ default:
+ return 0;
+ }
+}
+#endif
+
+/*****************************************************************************
+ * General Touch Part
+ */
+#ifdef CONFIG_TOUCHSCREEN_USB_GENERAL_TOUCH
+static int general_touch_read_data(struct usbtouch_usb *dev, unsigned char *pkt)
+{
+ dev->x = (pkt[2] << 8) | pkt[1];
+ dev->y = (pkt[4] << 8) | pkt[3];
+ dev->press = pkt[5] & 0xff;
+ dev->touch = pkt[0] & 0x01;
+
+ return 1;
+}
+#endif
+
+/*****************************************************************************
+ * GoTop Part
+ */
+#ifdef CONFIG_TOUCHSCREEN_USB_GOTOP
+static int gotop_read_data(struct usbtouch_usb *dev, unsigned char *pkt)
+{
+ dev->x = ((pkt[1] & 0x38) << 4) | pkt[2];
+ dev->y = ((pkt[1] & 0x07) << 7) | pkt[3];
+ dev->touch = pkt[0] & 0x01;
+
+ return 1;
+}
+#endif
+
+/*****************************************************************************
+ * JASTEC Part
+ */
+#ifdef CONFIG_TOUCHSCREEN_USB_JASTEC
+static int jastec_read_data(struct usbtouch_usb *dev, unsigned char *pkt)
+{
+ dev->x = ((pkt[0] & 0x3f) << 6) | (pkt[2] & 0x3f);
+ dev->y = ((pkt[1] & 0x3f) << 6) | (pkt[3] & 0x3f);
+ dev->touch = (pkt[0] & 0x40) >> 6;
+
+ return 1;
+}
+#endif
+
+/*****************************************************************************
+ * Zytronic Part
+ */
+#ifdef CONFIG_TOUCHSCREEN_USB_ZYTRONIC
+static int zytronic_read_data(struct usbtouch_usb *dev, unsigned char *pkt)
+{
+ switch (pkt[0]) {
+ case 0x3A: /* command response */
+ dbg("%s: Command response %d", __func__, pkt[1]);
+ break;
+
+ case 0xC0: /* down */
+ dev->x = (pkt[1] & 0x7f) | ((pkt[2] & 0x07) << 7);
+ dev->y = (pkt[3] & 0x7f) | ((pkt[4] & 0x07) << 7);
+ dev->touch = 1;
+ dbg("%s: down %d,%d", __func__, dev->x, dev->y);
+ return 1;
+
+ case 0x80: /* up */
+ dev->x = (pkt[1] & 0x7f) | ((pkt[2] & 0x07) << 7);
+ dev->y = (pkt[3] & 0x7f) | ((pkt[4] & 0x07) << 7);
+ dev->touch = 0;
+ dbg("%s: up %d,%d", __func__, dev->x, dev->y);
+ return 1;
+
+ default:
+ dbg("%s: Unknown return %d", __func__, pkt[0]);
+ break;
+ }
+
+ return 0;
+}
+#endif
+
+/*****************************************************************************
+ * NEXIO Part
+ */
+#ifdef CONFIG_TOUCHSCREEN_USB_NEXIO
+
+#define NEXIO_TIMEOUT 5000
+#define NEXIO_BUFSIZE 1024
+#define NEXIO_THRESHOLD 50
+
+struct nexio_priv {
+ struct urb *ack;
+ unsigned char *ack_buf;
+};
+
+struct nexio_touch_packet {
+ u8 flags; /* 0xe1 = touch, 0xe1 = release */
+ __be16 data_len; /* total bytes of touch data */
+ __be16 x_len; /* bytes for X axis */
+ __be16 y_len; /* bytes for Y axis */
+ u8 data[];
+} __attribute__ ((packed));
+
+static unsigned char nexio_ack_pkt[2] = { 0xaa, 0x02 };
+static unsigned char nexio_init_pkt[4] = { 0x82, 0x04, 0x0a, 0x0f };
+
+static void nexio_ack_complete(struct urb *urb)
+{
+}
+
+static int nexio_alloc(struct usbtouch_usb *usbtouch)
+{
+ struct nexio_priv *priv;
+ int ret = -ENOMEM;
+
+ usbtouch->priv = kmalloc(sizeof(struct nexio_priv), GFP_KERNEL);
+ if (!usbtouch->priv)
+ goto out_buf;
+
+ priv = usbtouch->priv;
+
+ priv->ack_buf = kmemdup(nexio_ack_pkt, sizeof(nexio_ack_pkt),
+ GFP_KERNEL);
+ if (!priv->ack_buf)
+ goto err_priv;
+
+ priv->ack = usb_alloc_urb(0, GFP_KERNEL);
+ if (!priv->ack) {
+ dbg("%s - usb_alloc_urb failed: usbtouch->ack", __func__);
+ goto err_ack_buf;
+ }
+
+ return 0;
+
+err_ack_buf:
+ kfree(priv->ack_buf);
+err_priv:
+ kfree(priv);
+out_buf:
+ return ret;
+}
+
+static int nexio_init(struct usbtouch_usb *usbtouch)
+{
+ struct usb_device *dev = interface_to_usbdev(usbtouch->interface);
+ struct usb_host_interface *interface = usbtouch->interface->cur_altsetting;
+ struct nexio_priv *priv = usbtouch->priv;
+ int ret = -ENOMEM;
+ int actual_len, i;
+ unsigned char *buf;
+ char *firmware_ver = NULL, *device_name = NULL;
+ int input_ep = 0, output_ep = 0;
+
+ /* find first input and output endpoint */
+ for (i = 0; i < interface->desc.bNumEndpoints; i++) {
+ if (!input_ep &&
+ usb_endpoint_dir_in(&interface->endpoint[i].desc))
+ input_ep = interface->endpoint[i].desc.bEndpointAddress;
+ if (!output_ep &&
+ usb_endpoint_dir_out(&interface->endpoint[i].desc))
+ output_ep = interface->endpoint[i].desc.bEndpointAddress;
+ }
+ if (!input_ep || !output_ep)
+ return -ENXIO;
+
+ buf = kmalloc(NEXIO_BUFSIZE, GFP_NOIO);
+ if (!buf)
+ goto out_buf;
+
+ /* two empty reads */
+ for (i = 0; i < 2; i++) {
+ ret = usb_bulk_msg(dev, usb_rcvbulkpipe(dev, input_ep),
+ buf, NEXIO_BUFSIZE, &actual_len,
+ NEXIO_TIMEOUT);
+ if (ret < 0)
+ goto out_buf;
+ }
+
+ /* send init command */
+ memcpy(buf, nexio_init_pkt, sizeof(nexio_init_pkt));
+ ret = usb_bulk_msg(dev, usb_sndbulkpipe(dev, output_ep),
+ buf, sizeof(nexio_init_pkt), &actual_len,
+ NEXIO_TIMEOUT);
+ if (ret < 0)
+ goto out_buf;
+
+ /* read replies */
+ for (i = 0; i < 3; i++) {
+ memset(buf, 0, NEXIO_BUFSIZE);
+ ret = usb_bulk_msg(dev, usb_rcvbulkpipe(dev, input_ep),
+ buf, NEXIO_BUFSIZE, &actual_len,
+ NEXIO_TIMEOUT);
+ if (ret < 0 || actual_len < 1 || buf[1] != actual_len)
+ continue;
+ switch (buf[0]) {
+ case 0x83: /* firmware version */
+ if (!firmware_ver)
+ firmware_ver = kstrdup(&buf[2], GFP_NOIO);
+ break;
+ case 0x84: /* device name */
+ if (!device_name)
+ device_name = kstrdup(&buf[2], GFP_NOIO);
+ break;
+ }
+ }
+
+ printk(KERN_INFO "Nexio device: %s, firmware version: %s\n",
+ device_name, firmware_ver);
+
+ kfree(firmware_ver);
+ kfree(device_name);
+
+ usb_fill_bulk_urb(priv->ack, dev, usb_sndbulkpipe(dev, output_ep),
+ priv->ack_buf, sizeof(nexio_ack_pkt),
+ nexio_ack_complete, usbtouch);
+ ret = 0;
+
+out_buf:
+ kfree(buf);
+ return ret;
+}
+
+static void nexio_exit(struct usbtouch_usb *usbtouch)
+{
+ struct nexio_priv *priv = usbtouch->priv;
+
+ usb_kill_urb(priv->ack);
+ usb_free_urb(priv->ack);
+ kfree(priv->ack_buf);
+ kfree(priv);
+}
+
+static int nexio_read_data(struct usbtouch_usb *usbtouch, unsigned char *pkt)
+{
+ struct nexio_touch_packet *packet = (void *) pkt;
+ struct nexio_priv *priv = usbtouch->priv;
+ unsigned int data_len = be16_to_cpu(packet->data_len);
+ unsigned int x_len = be16_to_cpu(packet->x_len);
+ unsigned int y_len = be16_to_cpu(packet->y_len);
+ int x, y, begin_x, begin_y, end_x, end_y, w, h, ret;
+
+ /* got touch data? */
+ if ((pkt[0] & 0xe0) != 0xe0)
+ return 0;
+
+ if (data_len > 0xff)
+ data_len -= 0x100;
+ if (x_len > 0xff)
+ x_len -= 0x80;
+
+ /* send ACK */
+ ret = usb_submit_urb(priv->ack, GFP_ATOMIC);
+
+ if (!usbtouch->type->max_xc) {
+ usbtouch->type->max_xc = 2 * x_len;
+ input_set_abs_params(usbtouch->input, ABS_X,
+ 0, usbtouch->type->max_xc, 0, 0);
+ usbtouch->type->max_yc = 2 * y_len;
+ input_set_abs_params(usbtouch->input, ABS_Y,
+ 0, usbtouch->type->max_yc, 0, 0);
+ }
+ /*
+ * The device reports state of IR sensors on X and Y axes.
+ * Each byte represents "darkness" percentage (0-100) of one element.
+ * 17" touchscreen reports only 64 x 52 bytes so the resolution is low.
+ * This also means that there's a limited multi-touch capability but
+ * it's disabled (and untested) here as there's no X driver for that.
+ */
+ begin_x = end_x = begin_y = end_y = -1;
+ for (x = 0; x < x_len; x++) {
+ if (begin_x == -1 && packet->data[x] > NEXIO_THRESHOLD) {
+ begin_x = x;
+ continue;
+ }
+ if (end_x == -1 && begin_x != -1 && packet->data[x] < NEXIO_THRESHOLD) {
+ end_x = x - 1;
+ for (y = x_len; y < data_len; y++) {
+ if (begin_y == -1 && packet->data[y] > NEXIO_THRESHOLD) {
+ begin_y = y - x_len;
+ continue;
+ }
+ if (end_y == -1 &&
+ begin_y != -1 && packet->data[y] < NEXIO_THRESHOLD) {
+ end_y = y - 1 - x_len;
+ w = end_x - begin_x;
+ h = end_y - begin_y;
+#if 0
+ /* multi-touch */
+ input_report_abs(usbtouch->input,
+ ABS_MT_TOUCH_MAJOR, max(w,h));
+ input_report_abs(usbtouch->input,
+ ABS_MT_TOUCH_MINOR, min(x,h));
+ input_report_abs(usbtouch->input,
+ ABS_MT_POSITION_X, 2*begin_x+w);
+ input_report_abs(usbtouch->input,
+ ABS_MT_POSITION_Y, 2*begin_y+h);
+ input_report_abs(usbtouch->input,
+ ABS_MT_ORIENTATION, w > h);
+ input_mt_sync(usbtouch->input);
+#endif
+ /* single touch */
+ usbtouch->x = 2 * begin_x + w;
+ usbtouch->y = 2 * begin_y + h;
+ usbtouch->touch = packet->flags & 0x01;
+ begin_y = end_y = -1;
+ return 1;
+ }
+ }
+ begin_x = end_x = -1;
+ }
+
+ }
+ return 0;
+}
+#endif
+
+
+/*****************************************************************************
+ * the different device descriptors
+ */
+#ifdef MULTI_PACKET
+static void usbtouch_process_multi(struct usbtouch_usb *usbtouch,
+ unsigned char *pkt, int len);
+#endif
+
+static struct usbtouch_device_info usbtouch_dev_info[] = {
+#ifdef CONFIG_TOUCHSCREEN_USB_EGALAX
+ [DEVTYPE_EGALAX] = {
+ .min_xc = 0x0,
+ .max_xc = 0x07ff,
+ .min_yc = 0x0,
+ .max_yc = 0x07ff,
+ .rept_size = 16,
+ .process_pkt = usbtouch_process_multi,
+ .get_pkt_len = egalax_get_pkt_len,
+ .read_data = egalax_read_data,
+ },
+#endif
+
+#ifdef CONFIG_TOUCHSCREEN_USB_PANJIT
+ [DEVTYPE_PANJIT] = {
+ .min_xc = 0x0,
+ .max_xc = 0x0fff,
+ .min_yc = 0x0,
+ .max_yc = 0x0fff,
+ .rept_size = 8,
+ .read_data = panjit_read_data,
+ },
+#endif
+
+#ifdef CONFIG_TOUCHSCREEN_USB_3M
+ [DEVTYPE_3M] = {
+ .min_xc = 0x0,
+ .max_xc = 0x4000,
+ .min_yc = 0x0,
+ .max_yc = 0x4000,
+ .rept_size = 11,
+ .read_data = mtouch_read_data,
+ .init = mtouch_init,
+ },
+#endif
+
+#ifdef CONFIG_TOUCHSCREEN_USB_ITM
+ [DEVTYPE_ITM] = {
+ .min_xc = 0x0,
+ .max_xc = 0x0fff,
+ .min_yc = 0x0,
+ .max_yc = 0x0fff,
+ .max_press = 0xff,
+ .rept_size = 8,
+ .read_data = itm_read_data,
+ },
+#endif
+
+#ifdef CONFIG_TOUCHSCREEN_USB_ETURBO
+ [DEVTYPE_ETURBO] = {
+ .min_xc = 0x0,
+ .max_xc = 0x07ff,
+ .min_yc = 0x0,
+ .max_yc = 0x07ff,
+ .rept_size = 8,
+ .process_pkt = usbtouch_process_multi,
+ .get_pkt_len = eturbo_get_pkt_len,
+ .read_data = eturbo_read_data,
+ },
+#endif
+
+#ifdef CONFIG_TOUCHSCREEN_USB_GUNZE
+ [DEVTYPE_GUNZE] = {
+ .min_xc = 0x0,
+ .max_xc = 0x0fff,
+ .min_yc = 0x0,
+ .max_yc = 0x0fff,
+ .rept_size = 4,
+ .read_data = gunze_read_data,
+ },
+#endif
+
+#ifdef CONFIG_TOUCHSCREEN_USB_DMC_TSC10
+ [DEVTYPE_DMC_TSC10] = {
+ .min_xc = 0x0,
+ .max_xc = 0x03ff,
+ .min_yc = 0x0,
+ .max_yc = 0x03ff,
+ .rept_size = 5,
+ .init = dmc_tsc10_init,
+ .read_data = dmc_tsc10_read_data,
+ },
+#endif
+
+#ifdef CONFIG_TOUCHSCREEN_USB_IRTOUCH
+ [DEVTYPE_IRTOUCH] = {
+ .min_xc = 0x0,
+ .max_xc = 0x0fff,
+ .min_yc = 0x0,
+ .max_yc = 0x0fff,
+ .rept_size = 8,
+ .read_data = irtouch_read_data,
+ },
+#endif
+
+#ifdef CONFIG_TOUCHSCREEN_USB_IDEALTEK
+ [DEVTYPE_IDEALTEK] = {
+ .min_xc = 0x0,
+ .max_xc = 0x0fff,
+ .min_yc = 0x0,
+ .max_yc = 0x0fff,
+ .rept_size = 8,
+ .process_pkt = usbtouch_process_multi,
+ .get_pkt_len = idealtek_get_pkt_len,
+ .read_data = idealtek_read_data,
+ },
+#endif
+
+#ifdef CONFIG_TOUCHSCREEN_USB_GENERAL_TOUCH
+ [DEVTYPE_GENERAL_TOUCH] = {
+ .min_xc = 0x0,
+ .max_xc = 0x7fff,
+ .min_yc = 0x0,
+ .max_yc = 0x7fff,
+ .rept_size = 7,
+ .read_data = general_touch_read_data,
+ },
+#endif
+
+#ifdef CONFIG_TOUCHSCREEN_USB_GOTOP
+ [DEVTYPE_GOTOP] = {
+ .min_xc = 0x0,
+ .max_xc = 0x03ff,
+ .min_yc = 0x0,
+ .max_yc = 0x03ff,
+ .rept_size = 4,
+ .read_data = gotop_read_data,
+ },
+#endif
+
+#ifdef CONFIG_TOUCHSCREEN_USB_JASTEC
+ [DEVTYPE_JASTEC] = {
+ .min_xc = 0x0,
+ .max_xc = 0x0fff,
+ .min_yc = 0x0,
+ .max_yc = 0x0fff,
+ .rept_size = 4,
+ .read_data = jastec_read_data,
+ },
+#endif
+
+#ifdef CONFIG_TOUCHSCREEN_USB_E2I
+ [DEVTYPE_E2I] = {
+ .min_xc = 0x0,
+ .max_xc = 0x7fff,
+ .min_yc = 0x0,
+ .max_yc = 0x7fff,
+ .rept_size = 6,
+ .init = e2i_init,
+ .read_data = e2i_read_data,
+ },
+#endif
+
+#ifdef CONFIG_TOUCHSCREEN_USB_ZYTRONIC
+ [DEVTYPE_ZYTRONIC] = {
+ .min_xc = 0x0,
+ .max_xc = 0x03ff,
+ .min_yc = 0x0,
+ .max_yc = 0x03ff,
+ .rept_size = 5,
+ .read_data = zytronic_read_data,
+ .irq_always = true,
+ },
+#endif
+
+#ifdef CONFIG_TOUCHSCREEN_USB_ETT_TC45USB
+ [DEVTYPE_TC45USB] = {
+ .min_xc = 0x0,
+ .max_xc = 0x0fff,
+ .min_yc = 0x0,
+ .max_yc = 0x0fff,
+ .rept_size = 5,
+ .read_data = tc45usb_read_data,
+ },
+#endif
+
+#ifdef CONFIG_TOUCHSCREEN_USB_NEXIO
+ [DEVTYPE_NEXIO] = {
+ .rept_size = 1024,
+ .irq_always = true,
+ .read_data = nexio_read_data,
+ .alloc = nexio_alloc,
+ .init = nexio_init,
+ .exit = nexio_exit,
+ },
+#endif
+};
+
+
+/*****************************************************************************
+ * Generic Part
+ */
+static void usbtouch_process_pkt(struct usbtouch_usb *usbtouch,
+ unsigned char *pkt, int len)
+{
+ struct usbtouch_device_info *type = usbtouch->type;
+
+ if (!type->read_data(usbtouch, pkt))
+ return;
+
+ input_report_key(usbtouch->input, BTN_TOUCH, usbtouch->touch);
+
+ if (swap_xy) {
+ input_report_abs(usbtouch->input, ABS_X, usbtouch->y);
+ input_report_abs(usbtouch->input, ABS_Y, usbtouch->x);
+ } else {
+ input_report_abs(usbtouch->input, ABS_X, usbtouch->x);
+ input_report_abs(usbtouch->input, ABS_Y, usbtouch->y);
+ }
+ if (type->max_press)
+ input_report_abs(usbtouch->input, ABS_PRESSURE, usbtouch->press);
+ input_sync(usbtouch->input);
+}
+
+
+#ifdef MULTI_PACKET
+static void usbtouch_process_multi(struct usbtouch_usb *usbtouch,
+ unsigned char *pkt, int len)
+{
+ unsigned char *buffer;
+ int pkt_len, pos, buf_len, tmp;
+
+ /* process buffer */
+ if (unlikely(usbtouch->buf_len)) {
+ /* try to get size */
+ pkt_len = usbtouch->type->get_pkt_len(
+ usbtouch->buffer, usbtouch->buf_len);
+
+ /* drop? */
+ if (unlikely(!pkt_len))
+ goto out_flush_buf;
+
+ /* need to append -pkt_len bytes before able to get size */
+ if (unlikely(pkt_len < 0)) {
+ int append = -pkt_len;
+ if (unlikely(append > len))
+ append = len;
+ if (usbtouch->buf_len + append >= usbtouch->type->rept_size)
+ goto out_flush_buf;
+ memcpy(usbtouch->buffer + usbtouch->buf_len, pkt, append);
+ usbtouch->buf_len += append;
+
+ pkt_len = usbtouch->type->get_pkt_len(
+ usbtouch->buffer, usbtouch->buf_len);
+ if (pkt_len < 0)
+ return;
+ }
+
+ /* append */
+ tmp = pkt_len - usbtouch->buf_len;
+ if (usbtouch->buf_len + tmp >= usbtouch->type->rept_size)
+ goto out_flush_buf;
+ memcpy(usbtouch->buffer + usbtouch->buf_len, pkt, tmp);
+ usbtouch_process_pkt(usbtouch, usbtouch->buffer, pkt_len);
+
+ buffer = pkt + tmp;
+ buf_len = len - tmp;
+ } else {
+ buffer = pkt;
+ buf_len = len;
+ }
+
+ /* loop over the received packet, process */
+ pos = 0;
+ while (pos < buf_len) {
+ /* get packet len */
+ pkt_len = usbtouch->type->get_pkt_len(buffer + pos,
+ buf_len - pos);
+
+ /* unknown packet: skip one byte */
+ if (unlikely(!pkt_len)) {
+ pos++;
+ continue;
+ }
+
+ /* full packet: process */
+ if (likely((pkt_len > 0) && (pkt_len <= buf_len - pos))) {
+ usbtouch_process_pkt(usbtouch, buffer + pos, pkt_len);
+ } else {
+ /* incomplete packet: save in buffer */
+ memcpy(usbtouch->buffer, buffer + pos, buf_len - pos);
+ usbtouch->buf_len = buf_len - pos;
+ return;
+ }
+ pos += pkt_len;
+ }
+
+out_flush_buf:
+ usbtouch->buf_len = 0;
+ return;
+}
+#endif
+
+
+static void usbtouch_irq(struct urb *urb)
+{
+ struct usbtouch_usb *usbtouch = urb->context;
+ int retval;
+
+ switch (urb->status) {
+ case 0:
+ /* success */
+ break;
+ case -ETIME:
+ /* this urb is timing out */
+ dbg("%s - urb timed out - was the device unplugged?",
+ __func__);
+ return;
+ case -ECONNRESET:
+ case -ENOENT:
+ case -ESHUTDOWN:
+ case -EPIPE:
+ /* this urb is terminated, clean up */
+ dbg("%s - urb shutting down with status: %d",
+ __func__, urb->status);
+ return;
+ default:
+ dbg("%s - nonzero urb status received: %d",
+ __func__, urb->status);
+ goto exit;
+ }
+
+ usbtouch->type->process_pkt(usbtouch, usbtouch->data, urb->actual_length);
+
+exit:
+ usb_mark_last_busy(interface_to_usbdev(usbtouch->interface));
+ retval = usb_submit_urb(urb, GFP_ATOMIC);
+ if (retval)
+ err("%s - usb_submit_urb failed with result: %d",
+ __func__, retval);
+}
+
+static int usbtouch_open(struct input_dev *input)
+{
+ struct usbtouch_usb *usbtouch = input_get_drvdata(input);
+ int r;
+
+ usbtouch->irq->dev = interface_to_usbdev(usbtouch->interface);
+
+ r = usb_autopm_get_interface(usbtouch->interface) ? -EIO : 0;
+ if (r < 0)
+ goto out;
+
+ if (!usbtouch->type->irq_always) {
+ if (usb_submit_urb(usbtouch->irq, GFP_KERNEL)) {
+ r = -EIO;
+ goto out_put;
+ }
+ }
+
+ usbtouch->interface->needs_remote_wakeup = 1;
+out_put:
+ usb_autopm_put_interface(usbtouch->interface);
+out:
+ return r;
+}
+
+static void usbtouch_close(struct input_dev *input)
+{
+ struct usbtouch_usb *usbtouch = input_get_drvdata(input);
+ int r;
+
+ if (!usbtouch->type->irq_always)
+ usb_kill_urb(usbtouch->irq);
+ r = usb_autopm_get_interface(usbtouch->interface);
+ usbtouch->interface->needs_remote_wakeup = 0;
+ if (!r)
+ usb_autopm_put_interface(usbtouch->interface);
+}
+
+static int usbtouch_suspend
+(struct usb_interface *intf, pm_message_t message)
+{
+ struct usbtouch_usb *usbtouch = usb_get_intfdata(intf);
+
+ usb_kill_urb(usbtouch->irq);
+
+ return 0;
+}
+
+static int usbtouch_resume(struct usb_interface *intf)
+{
+ struct usbtouch_usb *usbtouch = usb_get_intfdata(intf);
+ struct input_dev *input = usbtouch->input;
+ int result = 0;
+
+ mutex_lock(&input->mutex);
+ if (input->users || usbtouch->type->irq_always)
+ result = usb_submit_urb(usbtouch->irq, GFP_NOIO);
+ mutex_unlock(&input->mutex);
+
+ return result;
+}
+
+static int usbtouch_reset_resume(struct usb_interface *intf)
+{
+ struct usbtouch_usb *usbtouch = usb_get_intfdata(intf);
+ struct input_dev *input = usbtouch->input;
+ int err = 0;
+
+ /* reinit the device */
+ if (usbtouch->type->init) {
+ err = usbtouch->type->init(usbtouch);
+ if (err) {
+ dbg("%s - type->init() failed, err: %d",
+ __func__, err);
+ return err;
+ }
+ }
+
+ /* restart IO if needed */
+ mutex_lock(&input->mutex);
+ if (input->users)
+ err = usb_submit_urb(usbtouch->irq, GFP_NOIO);
+ mutex_unlock(&input->mutex);
+
+ return err;
+}
+
+static void usbtouch_free_buffers(struct usb_device *udev,
+ struct usbtouch_usb *usbtouch)
+{
+ usb_free_coherent(udev, usbtouch->type->rept_size,
+ usbtouch->data, usbtouch->data_dma);
+ kfree(usbtouch->buffer);
+}
+
+static struct usb_endpoint_descriptor *
+usbtouch_get_input_endpoint(struct usb_host_interface *interface)
+{
+ int i;
+
+ for (i = 0; i < interface->desc.bNumEndpoints; i++)
+ if (usb_endpoint_dir_in(&interface->endpoint[i].desc))
+ return &interface->endpoint[i].desc;
+
+ return NULL;
+}
+
+static int usbtouch_probe(struct usb_interface *intf,
+ const struct usb_device_id *id)
+{
+ struct usbtouch_usb *usbtouch;
+ struct input_dev *input_dev;
+ struct usb_endpoint_descriptor *endpoint;
+ struct usb_device *udev = interface_to_usbdev(intf);
+ struct usbtouch_device_info *type;
+ int err = -ENOMEM;
+
+ /* some devices are ignored */
+ if (id->driver_info == DEVTYPE_IGNORE)
+ return -ENODEV;
+
+ endpoint = usbtouch_get_input_endpoint(intf->cur_altsetting);
+ if (!endpoint)
+ return -ENXIO;
+
+ usbtouch = kzalloc(sizeof(struct usbtouch_usb), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!usbtouch || !input_dev)
+ goto out_free;
+
+ type = &usbtouch_dev_info[id->driver_info];
+ usbtouch->type = type;
+ if (!type->process_pkt)
+ type->process_pkt = usbtouch_process_pkt;
+
+ usbtouch->data = usb_alloc_coherent(udev, type->rept_size,
+ GFP_KERNEL, &usbtouch->data_dma);
+ if (!usbtouch->data)
+ goto out_free;
+
+ if (type->get_pkt_len) {
+ usbtouch->buffer = kmalloc(type->rept_size, GFP_KERNEL);
+ if (!usbtouch->buffer)
+ goto out_free_buffers;
+ }
+
+ usbtouch->irq = usb_alloc_urb(0, GFP_KERNEL);
+ if (!usbtouch->irq) {
+ dbg("%s - usb_alloc_urb failed: usbtouch->irq", __func__);
+ goto out_free_buffers;
+ }
+
+ usbtouch->interface = intf;
+ usbtouch->input = input_dev;
+
+ if (udev->manufacturer)
+ strlcpy(usbtouch->name, udev->manufacturer, sizeof(usbtouch->name));
+
+ if (udev->product) {
+ if (udev->manufacturer)
+ strlcat(usbtouch->name, " ", sizeof(usbtouch->name));
+ strlcat(usbtouch->name, udev->product, sizeof(usbtouch->name));
+ }
+
+ if (!strlen(usbtouch->name))
+ snprintf(usbtouch->name, sizeof(usbtouch->name),
+ "USB Touchscreen %04x:%04x",
+ le16_to_cpu(udev->descriptor.idVendor),
+ le16_to_cpu(udev->descriptor.idProduct));
+
+ usb_make_path(udev, usbtouch->phys, sizeof(usbtouch->phys));
+ strlcat(usbtouch->phys, "/input0", sizeof(usbtouch->phys));
+
+ input_dev->name = usbtouch->name;
+ input_dev->phys = usbtouch->phys;
+ usb_to_input_id(udev, &input_dev->id);
+ input_dev->dev.parent = &intf->dev;
+
+ input_set_drvdata(input_dev, usbtouch);
+
+ input_dev->open = usbtouch_open;
+ input_dev->close = usbtouch_close;
+
+ input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
+ input_dev->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH);
+ input_set_abs_params(input_dev, ABS_X, type->min_xc, type->max_xc, 0, 0);
+ input_set_abs_params(input_dev, ABS_Y, type->min_yc, type->max_yc, 0, 0);
+ if (type->max_press)
+ input_set_abs_params(input_dev, ABS_PRESSURE, type->min_press,
+ type->max_press, 0, 0);
+
+ if (usb_endpoint_type(endpoint) == USB_ENDPOINT_XFER_INT)
+ usb_fill_int_urb(usbtouch->irq, udev,
+ usb_rcvintpipe(udev, endpoint->bEndpointAddress),
+ usbtouch->data, type->rept_size,
+ usbtouch_irq, usbtouch, endpoint->bInterval);
+ else
+ usb_fill_bulk_urb(usbtouch->irq, udev,
+ usb_rcvbulkpipe(udev, endpoint->bEndpointAddress),
+ usbtouch->data, type->rept_size,
+ usbtouch_irq, usbtouch);
+
+ usbtouch->irq->dev = udev;
+ usbtouch->irq->transfer_dma = usbtouch->data_dma;
+ usbtouch->irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
+
+ /* device specific allocations */
+ if (type->alloc) {
+ err = type->alloc(usbtouch);
+ if (err) {
+ dbg("%s - type->alloc() failed, err: %d", __func__, err);
+ goto out_free_urb;
+ }
+ }
+
+ /* device specific initialisation*/
+ if (type->init) {
+ err = type->init(usbtouch);
+ if (err) {
+ dbg("%s - type->init() failed, err: %d", __func__, err);
+ goto out_do_exit;
+ }
+ }
+
+ err = input_register_device(usbtouch->input);
+ if (err) {
+ dbg("%s - input_register_device failed, err: %d", __func__, err);
+ goto out_do_exit;
+ }
+
+ usb_set_intfdata(intf, usbtouch);
+
+ if (usbtouch->type->irq_always) {
+ /* this can't fail */
+ usb_autopm_get_interface(intf);
+ err = usb_submit_urb(usbtouch->irq, GFP_KERNEL);
+ if (err) {
+ usb_autopm_put_interface(intf);
+ err("%s - usb_submit_urb failed with result: %d",
+ __func__, err);
+ goto out_unregister_input;
+ }
+ }
+
+ return 0;
+
+out_unregister_input:
+ input_unregister_device(input_dev);
+ input_dev = NULL;
+out_do_exit:
+ if (type->exit)
+ type->exit(usbtouch);
+out_free_urb:
+ usb_free_urb(usbtouch->irq);
+out_free_buffers:
+ usbtouch_free_buffers(udev, usbtouch);
+out_free:
+ input_free_device(input_dev);
+ kfree(usbtouch);
+ return err;
+}
+
+static void usbtouch_disconnect(struct usb_interface *intf)
+{
+ struct usbtouch_usb *usbtouch = usb_get_intfdata(intf);
+
+ dbg("%s - called", __func__);
+
+ if (!usbtouch)
+ return;
+
+ dbg("%s - usbtouch is initialized, cleaning up", __func__);
+ usb_set_intfdata(intf, NULL);
+ /* this will stop IO via close */
+ input_unregister_device(usbtouch->input);
+ usb_free_urb(usbtouch->irq);
+ if (usbtouch->type->exit)
+ usbtouch->type->exit(usbtouch);
+ usbtouch_free_buffers(interface_to_usbdev(intf), usbtouch);
+ kfree(usbtouch);
+}
+
+MODULE_DEVICE_TABLE(usb, usbtouch_devices);
+
+static struct usb_driver usbtouch_driver = {
+ .name = "usbtouchscreen",
+ .probe = usbtouch_probe,
+ .disconnect = usbtouch_disconnect,
+ .suspend = usbtouch_suspend,
+ .resume = usbtouch_resume,
+ .reset_resume = usbtouch_reset_resume,
+ .id_table = usbtouch_devices,
+ .supports_autosuspend = 1,
+};
+
+static int __init usbtouch_init(void)
+{
+ return usb_register(&usbtouch_driver);
+}
+
+static void __exit usbtouch_cleanup(void)
+{
+ usb_deregister(&usbtouch_driver);
+}
+
+module_init(usbtouch_init);
+module_exit(usbtouch_cleanup);
+
+MODULE_AUTHOR(DRIVER_AUTHOR);
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+MODULE_ALIAS("touchkitusb");
+MODULE_ALIAS("itmtouch");
+MODULE_ALIAS("mtouchusb");
diff --git a/drivers/input/touchscreen/w90p910_ts.c b/drivers/input/touchscreen/w90p910_ts.c
new file mode 100644
index 0000000..217aa51
--- /dev/null
+++ b/drivers/input/touchscreen/w90p910_ts.c
@@ -0,0 +1,351 @@
+/*
+ * Copyright (c) 2008 Nuvoton technology corporation.
+ *
+ * Wan ZongShun <mcuos.com@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation;version 2 of the License.
+ *
+ */
+
+#include <linux/delay.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/io.h>
+#include <linux/clk.h>
+#include <linux/input.h>
+#include <linux/interrupt.h>
+#include <linux/slab.h>
+
+/* ADC controller bit defines */
+#define ADC_DELAY 0xf00
+#define ADC_DOWN 0x01
+#define ADC_TSC_Y (0x01 << 8)
+#define ADC_TSC_X (0x00 << 8)
+#define TSC_FOURWIRE (~(0x03 << 1))
+#define ADC_CLK_EN (0x01 << 28) /* ADC clock enable */
+#define ADC_READ_CON (0x01 << 12)
+#define ADC_CONV (0x01 << 13)
+#define ADC_SEMIAUTO (0x01 << 14)
+#define ADC_WAITTRIG (0x03 << 14)
+#define ADC_RST1 (0x01 << 16)
+#define ADC_RST0 (0x00 << 16)
+#define ADC_EN (0x01 << 17)
+#define ADC_INT (0x01 << 18)
+#define WT_INT (0x01 << 20)
+#define ADC_INT_EN (0x01 << 21)
+#define LVD_INT_EN (0x01 << 22)
+#define WT_INT_EN (0x01 << 23)
+#define ADC_DIV (0x04 << 1) /* div = 6 */
+
+enum ts_state {
+ TS_WAIT_NEW_PACKET, /* We are waiting next touch report */
+ TS_WAIT_X_COORD, /* We are waiting for ADC to report X coord */
+ TS_WAIT_Y_COORD, /* We are waiting for ADC to report Y coord */
+ TS_IDLE, /* Input device is closed, don't do anything */
+};
+
+struct w90p910_ts {
+ struct input_dev *input;
+ struct timer_list timer;
+ struct clk *clk;
+ int irq_num;
+ void __iomem *ts_reg;
+ spinlock_t lock;
+ enum ts_state state;
+};
+
+static void w90p910_report_event(struct w90p910_ts *w90p910_ts, bool down)
+{
+ struct input_dev *dev = w90p910_ts->input;
+
+ if (down) {
+ input_report_abs(dev, ABS_X,
+ __raw_readl(w90p910_ts->ts_reg + 0x0c));
+ input_report_abs(dev, ABS_Y,
+ __raw_readl(w90p910_ts->ts_reg + 0x10));
+ }
+
+ input_report_key(dev, BTN_TOUCH, down);
+ input_sync(dev);
+}
+
+static void w90p910_prepare_x_reading(struct w90p910_ts *w90p910_ts)
+{
+ unsigned long ctlreg;
+
+ __raw_writel(ADC_TSC_X, w90p910_ts->ts_reg + 0x04);
+ ctlreg = __raw_readl(w90p910_ts->ts_reg);
+ ctlreg &= ~(ADC_WAITTRIG | WT_INT | WT_INT_EN);
+ ctlreg |= ADC_SEMIAUTO | ADC_INT_EN | ADC_CONV;
+ __raw_writel(ctlreg, w90p910_ts->ts_reg);
+
+ w90p910_ts->state = TS_WAIT_X_COORD;
+}
+
+static void w90p910_prepare_y_reading(struct w90p910_ts *w90p910_ts)
+{
+ unsigned long ctlreg;
+
+ __raw_writel(ADC_TSC_Y, w90p910_ts->ts_reg + 0x04);
+ ctlreg = __raw_readl(w90p910_ts->ts_reg);
+ ctlreg &= ~(ADC_WAITTRIG | ADC_INT | WT_INT_EN);
+ ctlreg |= ADC_SEMIAUTO | ADC_INT_EN | ADC_CONV;
+ __raw_writel(ctlreg, w90p910_ts->ts_reg);
+
+ w90p910_ts->state = TS_WAIT_Y_COORD;
+}
+
+static void w90p910_prepare_next_packet(struct w90p910_ts *w90p910_ts)
+{
+ unsigned long ctlreg;
+
+ ctlreg = __raw_readl(w90p910_ts->ts_reg);
+ ctlreg &= ~(ADC_INT | ADC_INT_EN | ADC_SEMIAUTO | ADC_CONV);
+ ctlreg |= ADC_WAITTRIG | WT_INT_EN;
+ __raw_writel(ctlreg, w90p910_ts->ts_reg);
+
+ w90p910_ts->state = TS_WAIT_NEW_PACKET;
+}
+
+static irqreturn_t w90p910_ts_interrupt(int irq, void *dev_id)
+{
+ struct w90p910_ts *w90p910_ts = dev_id;
+ unsigned long flags;
+
+ spin_lock_irqsave(&w90p910_ts->lock, flags);
+
+ switch (w90p910_ts->state) {
+ case TS_WAIT_NEW_PACKET:
+ /*
+ * The controller only generates interrupts when pen
+ * is down.
+ */
+ del_timer(&w90p910_ts->timer);
+ w90p910_prepare_x_reading(w90p910_ts);
+ break;
+
+
+ case TS_WAIT_X_COORD:
+ w90p910_prepare_y_reading(w90p910_ts);
+ break;
+
+ case TS_WAIT_Y_COORD:
+ w90p910_report_event(w90p910_ts, true);
+ w90p910_prepare_next_packet(w90p910_ts);
+ mod_timer(&w90p910_ts->timer, jiffies + msecs_to_jiffies(100));
+ break;
+
+ case TS_IDLE:
+ break;
+ }
+
+ spin_unlock_irqrestore(&w90p910_ts->lock, flags);
+
+ return IRQ_HANDLED;
+}
+
+static void w90p910_check_pen_up(unsigned long data)
+{
+ struct w90p910_ts *w90p910_ts = (struct w90p910_ts *) data;
+ unsigned long flags;
+
+ spin_lock_irqsave(&w90p910_ts->lock, flags);
+
+ if (w90p910_ts->state == TS_WAIT_NEW_PACKET &&
+ !(__raw_readl(w90p910_ts->ts_reg + 0x04) & ADC_DOWN)) {
+
+ w90p910_report_event(w90p910_ts, false);
+ }
+
+ spin_unlock_irqrestore(&w90p910_ts->lock, flags);
+}
+
+static int w90p910_open(struct input_dev *dev)
+{
+ struct w90p910_ts *w90p910_ts = input_get_drvdata(dev);
+ unsigned long val;
+
+ /* enable the ADC clock */
+ clk_enable(w90p910_ts->clk);
+
+ __raw_writel(ADC_RST1, w90p910_ts->ts_reg);
+ msleep(1);
+ __raw_writel(ADC_RST0, w90p910_ts->ts_reg);
+ msleep(1);
+
+ /* set delay and screen type */
+ val = __raw_readl(w90p910_ts->ts_reg + 0x04);
+ __raw_writel(val & TSC_FOURWIRE, w90p910_ts->ts_reg + 0x04);
+ __raw_writel(ADC_DELAY, w90p910_ts->ts_reg + 0x08);
+
+ w90p910_ts->state = TS_WAIT_NEW_PACKET;
+ wmb();
+
+ /* set trigger mode */
+ val = __raw_readl(w90p910_ts->ts_reg);
+ val |= ADC_WAITTRIG | ADC_DIV | ADC_EN | WT_INT_EN;
+ __raw_writel(val, w90p910_ts->ts_reg);
+
+ return 0;
+}
+
+static void w90p910_close(struct input_dev *dev)
+{
+ struct w90p910_ts *w90p910_ts = input_get_drvdata(dev);
+ unsigned long val;
+
+ /* disable trigger mode */
+
+ spin_lock_irq(&w90p910_ts->lock);
+
+ w90p910_ts->state = TS_IDLE;
+
+ val = __raw_readl(w90p910_ts->ts_reg);
+ val &= ~(ADC_WAITTRIG | ADC_DIV | ADC_EN | WT_INT_EN | ADC_INT_EN);
+ __raw_writel(val, w90p910_ts->ts_reg);
+
+ spin_unlock_irq(&w90p910_ts->lock);
+
+ /* Now that interrupts are shut off we can safely delete timer */
+ del_timer_sync(&w90p910_ts->timer);
+
+ /* stop the ADC clock */
+ clk_disable(w90p910_ts->clk);
+}
+
+static int __devinit w90x900ts_probe(struct platform_device *pdev)
+{
+ struct w90p910_ts *w90p910_ts;
+ struct input_dev *input_dev;
+ struct resource *res;
+ int err;
+
+ w90p910_ts = kzalloc(sizeof(struct w90p910_ts), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!w90p910_ts || !input_dev) {
+ err = -ENOMEM;
+ goto fail1;
+ }
+
+ w90p910_ts->input = input_dev;
+ w90p910_ts->state = TS_IDLE;
+ spin_lock_init(&w90p910_ts->lock);
+ setup_timer(&w90p910_ts->timer, w90p910_check_pen_up,
+ (unsigned long)w90p910_ts);
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!res) {
+ err = -ENXIO;
+ goto fail1;
+ }
+
+ if (!request_mem_region(res->start, resource_size(res),
+ pdev->name)) {
+ err = -EBUSY;
+ goto fail1;
+ }
+
+ w90p910_ts->ts_reg = ioremap(res->start, resource_size(res));
+ if (!w90p910_ts->ts_reg) {
+ err = -ENOMEM;
+ goto fail2;
+ }
+
+ w90p910_ts->clk = clk_get(&pdev->dev, NULL);
+ if (IS_ERR(w90p910_ts->clk)) {
+ err = PTR_ERR(w90p910_ts->clk);
+ goto fail3;
+ }
+
+ input_dev->name = "W90P910 TouchScreen";
+ input_dev->phys = "w90p910ts/event0";
+ input_dev->id.bustype = BUS_HOST;
+ input_dev->id.vendor = 0x0005;
+ input_dev->id.product = 0x0001;
+ input_dev->id.version = 0x0100;
+ input_dev->dev.parent = &pdev->dev;
+ input_dev->open = w90p910_open;
+ input_dev->close = w90p910_close;
+
+ input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
+ input_dev->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH);
+
+ input_set_abs_params(input_dev, ABS_X, 0, 0x400, 0, 0);
+ input_set_abs_params(input_dev, ABS_Y, 0, 0x400, 0, 0);
+
+ input_set_drvdata(input_dev, w90p910_ts);
+
+ w90p910_ts->irq_num = platform_get_irq(pdev, 0);
+ if (request_irq(w90p910_ts->irq_num, w90p910_ts_interrupt,
+ 0, "w90p910ts", w90p910_ts)) {
+ err = -EBUSY;
+ goto fail4;
+ }
+
+ err = input_register_device(w90p910_ts->input);
+ if (err)
+ goto fail5;
+
+ platform_set_drvdata(pdev, w90p910_ts);
+
+ return 0;
+
+fail5: free_irq(w90p910_ts->irq_num, w90p910_ts);
+fail4: clk_put(w90p910_ts->clk);
+fail3: iounmap(w90p910_ts->ts_reg);
+fail2: release_mem_region(res->start, resource_size(res));
+fail1: input_free_device(input_dev);
+ kfree(w90p910_ts);
+ return err;
+}
+
+static int __devexit w90x900ts_remove(struct platform_device *pdev)
+{
+ struct w90p910_ts *w90p910_ts = platform_get_drvdata(pdev);
+ struct resource *res;
+
+ free_irq(w90p910_ts->irq_num, w90p910_ts);
+ del_timer_sync(&w90p910_ts->timer);
+ iounmap(w90p910_ts->ts_reg);
+
+ clk_put(w90p910_ts->clk);
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ release_mem_region(res->start, resource_size(res));
+
+ input_unregister_device(w90p910_ts->input);
+ kfree(w90p910_ts);
+
+ platform_set_drvdata(pdev, NULL);
+
+ return 0;
+}
+
+static struct platform_driver w90x900ts_driver = {
+ .probe = w90x900ts_probe,
+ .remove = __devexit_p(w90x900ts_remove),
+ .driver = {
+ .name = "nuc900-ts",
+ .owner = THIS_MODULE,
+ },
+};
+
+static int __init w90x900ts_init(void)
+{
+ return platform_driver_register(&w90x900ts_driver);
+}
+
+static void __exit w90x900ts_exit(void)
+{
+ platform_driver_unregister(&w90x900ts_driver);
+}
+
+module_init(w90x900ts_init);
+module_exit(w90x900ts_exit);
+
+MODULE_AUTHOR("Wan ZongShun <mcuos.com@gmail.com>");
+MODULE_DESCRIPTION("w90p910 touch screen driver!");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:nuc900-ts");
diff --git a/drivers/input/touchscreen/wacom_w8001.c b/drivers/input/touchscreen/wacom_w8001.c
new file mode 100644
index 0000000..1569a39
--- /dev/null
+++ b/drivers/input/touchscreen/wacom_w8001.c
@@ -0,0 +1,608 @@
+/*
+ * Wacom W8001 penabled serial touchscreen driver
+ *
+ * Copyright (c) 2008 Jaya Kumar
+ * Copyright (c) 2010 Red Hat, Inc.
+ * Copyright (c) 2010 - 2011 Ping Cheng, Wacom. <pingc@wacom.com>
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file COPYING in the main directory of this archive for
+ * more details.
+ *
+ * Layout based on Elo serial touchscreen driver by Vojtech Pavlik
+ */
+
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/input/mt.h>
+#include <linux/serio.h>
+#include <linux/init.h>
+#include <linux/ctype.h>
+#include <linux/delay.h>
+
+#define DRIVER_DESC "Wacom W8001 serial touchscreen driver"
+
+MODULE_AUTHOR("Jaya Kumar <jayakumar.lkml@gmail.com>");
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+#define W8001_MAX_LENGTH 11
+#define W8001_LEAD_MASK 0x80
+#define W8001_LEAD_BYTE 0x80
+#define W8001_TAB_MASK 0x40
+#define W8001_TAB_BYTE 0x40
+/* set in first byte of touch data packets */
+#define W8001_TOUCH_MASK (0x10 | W8001_LEAD_MASK)
+#define W8001_TOUCH_BYTE (0x10 | W8001_LEAD_BYTE)
+
+#define W8001_QUERY_PACKET 0x20
+
+#define W8001_CMD_STOP '0'
+#define W8001_CMD_START '1'
+#define W8001_CMD_QUERY '*'
+#define W8001_CMD_TOUCHQUERY '%'
+
+/* length of data packets in bytes, depends on device. */
+#define W8001_PKTLEN_TOUCH93 5
+#define W8001_PKTLEN_TOUCH9A 7
+#define W8001_PKTLEN_TPCPEN 9
+#define W8001_PKTLEN_TPCCTL 11 /* control packet */
+#define W8001_PKTLEN_TOUCH2FG 13
+
+/* resolution in points/mm */
+#define W8001_PEN_RESOLUTION 100
+#define W8001_TOUCH_RESOLUTION 10
+
+struct w8001_coord {
+ u8 rdy;
+ u8 tsw;
+ u8 f1;
+ u8 f2;
+ u16 x;
+ u16 y;
+ u16 pen_pressure;
+ u8 tilt_x;
+ u8 tilt_y;
+};
+
+/* touch query reply packet */
+struct w8001_touch_query {
+ u16 x;
+ u16 y;
+ u8 panel_res;
+ u8 capacity_res;
+ u8 sensor_id;
+};
+
+/*
+ * Per-touchscreen data.
+ */
+
+struct w8001 {
+ struct input_dev *dev;
+ struct serio *serio;
+ struct completion cmd_done;
+ int id;
+ int idx;
+ unsigned char response_type;
+ unsigned char response[W8001_MAX_LENGTH];
+ unsigned char data[W8001_MAX_LENGTH];
+ char phys[32];
+ int type;
+ unsigned int pktlen;
+ u16 max_touch_x;
+ u16 max_touch_y;
+ u16 max_pen_x;
+ u16 max_pen_y;
+ char name[64];
+};
+
+static void parse_pen_data(u8 *data, struct w8001_coord *coord)
+{
+ memset(coord, 0, sizeof(*coord));
+
+ coord->rdy = data[0] & 0x20;
+ coord->tsw = data[0] & 0x01;
+ coord->f1 = data[0] & 0x02;
+ coord->f2 = data[0] & 0x04;
+
+ coord->x = (data[1] & 0x7F) << 9;
+ coord->x |= (data[2] & 0x7F) << 2;
+ coord->x |= (data[6] & 0x60) >> 5;
+
+ coord->y = (data[3] & 0x7F) << 9;
+ coord->y |= (data[4] & 0x7F) << 2;
+ coord->y |= (data[6] & 0x18) >> 3;
+
+ coord->pen_pressure = data[5] & 0x7F;
+ coord->pen_pressure |= (data[6] & 0x07) << 7 ;
+
+ coord->tilt_x = data[7] & 0x7F;
+ coord->tilt_y = data[8] & 0x7F;
+}
+
+static void parse_single_touch(u8 *data, struct w8001_coord *coord)
+{
+ coord->x = (data[1] << 7) | data[2];
+ coord->y = (data[3] << 7) | data[4];
+ coord->tsw = data[0] & 0x01;
+}
+
+static void scale_touch_coordinates(struct w8001 *w8001,
+ unsigned int *x, unsigned int *y)
+{
+ if (w8001->max_pen_x && w8001->max_touch_x)
+ *x = *x * w8001->max_pen_x / w8001->max_touch_x;
+
+ if (w8001->max_pen_y && w8001->max_touch_y)
+ *y = *y * w8001->max_pen_y / w8001->max_touch_y;
+}
+
+static void parse_multi_touch(struct w8001 *w8001)
+{
+ struct input_dev *dev = w8001->dev;
+ unsigned char *data = w8001->data;
+ unsigned int x, y;
+ int i;
+ int count = 0;
+
+ for (i = 0; i < 2; i++) {
+ bool touch = data[0] & (1 << i);
+
+ input_mt_slot(dev, i);
+ input_mt_report_slot_state(dev, MT_TOOL_FINGER, touch);
+ if (touch) {
+ x = (data[6 * i + 1] << 7) | data[6 * i + 2];
+ y = (data[6 * i + 3] << 7) | data[6 * i + 4];
+ /* data[5,6] and [11,12] is finger capacity */
+
+ /* scale to pen maximum */
+ scale_touch_coordinates(w8001, &x, &y);
+
+ input_report_abs(dev, ABS_MT_POSITION_X, x);
+ input_report_abs(dev, ABS_MT_POSITION_Y, y);
+ count++;
+ }
+ }
+
+ /* emulate single touch events when stylus is out of proximity.
+ * This is to make single touch backward support consistent
+ * across all Wacom single touch devices.
+ */
+ if (w8001->type != BTN_TOOL_PEN &&
+ w8001->type != BTN_TOOL_RUBBER) {
+ w8001->type = count == 1 ? BTN_TOOL_FINGER : KEY_RESERVED;
+ input_mt_report_pointer_emulation(dev, true);
+ }
+
+ input_sync(dev);
+}
+
+static void parse_touchquery(u8 *data, struct w8001_touch_query *query)
+{
+ memset(query, 0, sizeof(*query));
+
+ query->panel_res = data[1];
+ query->sensor_id = data[2] & 0x7;
+ query->capacity_res = data[7];
+
+ query->x = data[3] << 9;
+ query->x |= data[4] << 2;
+ query->x |= (data[2] >> 5) & 0x3;
+
+ query->y = data[5] << 9;
+ query->y |= data[6] << 2;
+ query->y |= (data[2] >> 3) & 0x3;
+
+ /* Early days' single-finger touch models need the following defaults */
+ if (!query->x && !query->y) {
+ query->x = 1024;
+ query->y = 1024;
+ if (query->panel_res)
+ query->x = query->y = (1 << query->panel_res);
+ query->panel_res = W8001_TOUCH_RESOLUTION;
+ }
+}
+
+static void report_pen_events(struct w8001 *w8001, struct w8001_coord *coord)
+{
+ struct input_dev *dev = w8001->dev;
+
+ /*
+ * We have 1 bit for proximity (rdy) and 3 bits for tip, side,
+ * side2/eraser. If rdy && f2 are set, this can be either pen + side2,
+ * or eraser. Assume:
+ * - if dev is already in proximity and f2 is toggled → pen + side2
+ * - if dev comes into proximity with f2 set → eraser
+ * If f2 disappears after assuming eraser, fake proximity out for
+ * eraser and in for pen.
+ */
+
+ switch (w8001->type) {
+ case BTN_TOOL_RUBBER:
+ if (!coord->f2) {
+ input_report_abs(dev, ABS_PRESSURE, 0);
+ input_report_key(dev, BTN_TOUCH, 0);
+ input_report_key(dev, BTN_STYLUS, 0);
+ input_report_key(dev, BTN_STYLUS2, 0);
+ input_report_key(dev, BTN_TOOL_RUBBER, 0);
+ input_sync(dev);
+ w8001->type = BTN_TOOL_PEN;
+ }
+ break;
+
+ case BTN_TOOL_FINGER:
+ input_report_key(dev, BTN_TOUCH, 0);
+ input_report_key(dev, BTN_TOOL_FINGER, 0);
+ input_sync(dev);
+ /* fall through */
+
+ case KEY_RESERVED:
+ w8001->type = coord->f2 ? BTN_TOOL_RUBBER : BTN_TOOL_PEN;
+ break;
+
+ default:
+ input_report_key(dev, BTN_STYLUS2, coord->f2);
+ break;
+ }
+
+ input_report_abs(dev, ABS_X, coord->x);
+ input_report_abs(dev, ABS_Y, coord->y);
+ input_report_abs(dev, ABS_PRESSURE, coord->pen_pressure);
+ input_report_key(dev, BTN_TOUCH, coord->tsw);
+ input_report_key(dev, BTN_STYLUS, coord->f1);
+ input_report_key(dev, w8001->type, coord->rdy);
+ input_sync(dev);
+
+ if (!coord->rdy)
+ w8001->type = KEY_RESERVED;
+}
+
+static void report_single_touch(struct w8001 *w8001, struct w8001_coord *coord)
+{
+ struct input_dev *dev = w8001->dev;
+ unsigned int x = coord->x;
+ unsigned int y = coord->y;
+
+ /* scale to pen maximum */
+ scale_touch_coordinates(w8001, &x, &y);
+
+ input_report_abs(dev, ABS_X, x);
+ input_report_abs(dev, ABS_Y, y);
+ input_report_key(dev, BTN_TOUCH, coord->tsw);
+ input_report_key(dev, BTN_TOOL_FINGER, coord->tsw);
+
+ input_sync(dev);
+
+ w8001->type = coord->tsw ? BTN_TOOL_FINGER : KEY_RESERVED;
+}
+
+static irqreturn_t w8001_interrupt(struct serio *serio,
+ unsigned char data, unsigned int flags)
+{
+ struct w8001 *w8001 = serio_get_drvdata(serio);
+ struct w8001_coord coord;
+ unsigned char tmp;
+
+ w8001->data[w8001->idx] = data;
+ switch (w8001->idx++) {
+ case 0:
+ if ((data & W8001_LEAD_MASK) != W8001_LEAD_BYTE) {
+ pr_debug("w8001: unsynchronized data: 0x%02x\n", data);
+ w8001->idx = 0;
+ }
+ break;
+
+ case W8001_PKTLEN_TOUCH93 - 1:
+ case W8001_PKTLEN_TOUCH9A - 1:
+ tmp = w8001->data[0] & W8001_TOUCH_BYTE;
+ if (tmp != W8001_TOUCH_BYTE)
+ break;
+
+ if (w8001->pktlen == w8001->idx) {
+ w8001->idx = 0;
+ if (w8001->type != BTN_TOOL_PEN &&
+ w8001->type != BTN_TOOL_RUBBER) {
+ parse_single_touch(w8001->data, &coord);
+ report_single_touch(w8001, &coord);
+ }
+ }
+ break;
+
+ /* Pen coordinates packet */
+ case W8001_PKTLEN_TPCPEN - 1:
+ tmp = w8001->data[0] & W8001_TAB_MASK;
+ if (unlikely(tmp == W8001_TAB_BYTE))
+ break;
+
+ tmp = w8001->data[0] & W8001_TOUCH_BYTE;
+ if (tmp == W8001_TOUCH_BYTE)
+ break;
+
+ w8001->idx = 0;
+ parse_pen_data(w8001->data, &coord);
+ report_pen_events(w8001, &coord);
+ break;
+
+ /* control packet */
+ case W8001_PKTLEN_TPCCTL - 1:
+ tmp = w8001->data[0] & W8001_TOUCH_MASK;
+ if (tmp == W8001_TOUCH_BYTE)
+ break;
+
+ w8001->idx = 0;
+ memcpy(w8001->response, w8001->data, W8001_MAX_LENGTH);
+ w8001->response_type = W8001_QUERY_PACKET;
+ complete(&w8001->cmd_done);
+ break;
+
+ /* 2 finger touch packet */
+ case W8001_PKTLEN_TOUCH2FG - 1:
+ w8001->idx = 0;
+ parse_multi_touch(w8001);
+ break;
+ }
+
+ return IRQ_HANDLED;
+}
+
+static int w8001_command(struct w8001 *w8001, unsigned char command,
+ bool wait_response)
+{
+ int rc;
+
+ w8001->response_type = 0;
+ init_completion(&w8001->cmd_done);
+
+ rc = serio_write(w8001->serio, command);
+ if (rc == 0 && wait_response) {
+
+ wait_for_completion_timeout(&w8001->cmd_done, HZ);
+ if (w8001->response_type != W8001_QUERY_PACKET)
+ rc = -EIO;
+ }
+
+ return rc;
+}
+
+static int w8001_open(struct input_dev *dev)
+{
+ struct w8001 *w8001 = input_get_drvdata(dev);
+
+ return w8001_command(w8001, W8001_CMD_START, false);
+}
+
+static void w8001_close(struct input_dev *dev)
+{
+ struct w8001 *w8001 = input_get_drvdata(dev);
+
+ w8001_command(w8001, W8001_CMD_STOP, false);
+}
+
+static int w8001_setup(struct w8001 *w8001)
+{
+ struct input_dev *dev = w8001->dev;
+ struct w8001_coord coord;
+ struct w8001_touch_query touch;
+ int error;
+
+ error = w8001_command(w8001, W8001_CMD_STOP, false);
+ if (error)
+ return error;
+
+ msleep(250); /* wait 250ms before querying the device */
+
+ dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
+ strlcat(w8001->name, "Wacom Serial", sizeof(w8001->name));
+
+ __set_bit(INPUT_PROP_DIRECT, dev->propbit);
+
+ /* penabled? */
+ error = w8001_command(w8001, W8001_CMD_QUERY, true);
+ if (!error) {
+ __set_bit(BTN_TOUCH, dev->keybit);
+ __set_bit(BTN_TOOL_PEN, dev->keybit);
+ __set_bit(BTN_TOOL_RUBBER, dev->keybit);
+ __set_bit(BTN_STYLUS, dev->keybit);
+ __set_bit(BTN_STYLUS2, dev->keybit);
+
+ parse_pen_data(w8001->response, &coord);
+ w8001->max_pen_x = coord.x;
+ w8001->max_pen_y = coord.y;
+
+ input_set_abs_params(dev, ABS_X, 0, coord.x, 0, 0);
+ input_set_abs_params(dev, ABS_Y, 0, coord.y, 0, 0);
+ input_abs_set_res(dev, ABS_X, W8001_PEN_RESOLUTION);
+ input_abs_set_res(dev, ABS_Y, W8001_PEN_RESOLUTION);
+ input_set_abs_params(dev, ABS_PRESSURE, 0, coord.pen_pressure, 0, 0);
+ if (coord.tilt_x && coord.tilt_y) {
+ input_set_abs_params(dev, ABS_TILT_X, 0, coord.tilt_x, 0, 0);
+ input_set_abs_params(dev, ABS_TILT_Y, 0, coord.tilt_y, 0, 0);
+ }
+ w8001->id = 0x90;
+ strlcat(w8001->name, " Penabled", sizeof(w8001->name));
+ }
+
+ /* Touch enabled? */
+ error = w8001_command(w8001, W8001_CMD_TOUCHQUERY, true);
+
+ /*
+ * Some non-touch devices may reply to the touch query. But their
+ * second byte is empty, which indicates touch is not supported.
+ */
+ if (!error && w8001->response[1]) {
+ __set_bit(BTN_TOUCH, dev->keybit);
+ __set_bit(BTN_TOOL_FINGER, dev->keybit);
+
+ parse_touchquery(w8001->response, &touch);
+ w8001->max_touch_x = touch.x;
+ w8001->max_touch_y = touch.y;
+
+ if (w8001->max_pen_x && w8001->max_pen_y) {
+ /* if pen is supported scale to pen maximum */
+ touch.x = w8001->max_pen_x;
+ touch.y = w8001->max_pen_y;
+ touch.panel_res = W8001_PEN_RESOLUTION;
+ }
+
+ input_set_abs_params(dev, ABS_X, 0, touch.x, 0, 0);
+ input_set_abs_params(dev, ABS_Y, 0, touch.y, 0, 0);
+ input_abs_set_res(dev, ABS_X, touch.panel_res);
+ input_abs_set_res(dev, ABS_Y, touch.panel_res);
+
+ switch (touch.sensor_id) {
+ case 0:
+ case 2:
+ w8001->pktlen = W8001_PKTLEN_TOUCH93;
+ w8001->id = 0x93;
+ strlcat(w8001->name, " 1FG", sizeof(w8001->name));
+ break;
+
+ case 1:
+ case 3:
+ case 4:
+ w8001->pktlen = W8001_PKTLEN_TOUCH9A;
+ strlcat(w8001->name, " 1FG", sizeof(w8001->name));
+ w8001->id = 0x9a;
+ break;
+
+ case 5:
+ w8001->pktlen = W8001_PKTLEN_TOUCH2FG;
+
+ input_mt_init_slots(dev, 2);
+ input_set_abs_params(dev, ABS_MT_POSITION_X,
+ 0, touch.x, 0, 0);
+ input_set_abs_params(dev, ABS_MT_POSITION_Y,
+ 0, touch.y, 0, 0);
+ input_set_abs_params(dev, ABS_MT_TOOL_TYPE,
+ 0, MT_TOOL_MAX, 0, 0);
+
+ strlcat(w8001->name, " 2FG", sizeof(w8001->name));
+ if (w8001->max_pen_x && w8001->max_pen_y)
+ w8001->id = 0xE3;
+ else
+ w8001->id = 0xE2;
+ break;
+ }
+ }
+
+ strlcat(w8001->name, " Touchscreen", sizeof(w8001->name));
+
+ return 0;
+}
+
+/*
+ * w8001_disconnect() is the opposite of w8001_connect()
+ */
+
+static void w8001_disconnect(struct serio *serio)
+{
+ struct w8001 *w8001 = serio_get_drvdata(serio);
+
+ serio_close(serio);
+
+ input_unregister_device(w8001->dev);
+ kfree(w8001);
+
+ serio_set_drvdata(serio, NULL);
+}
+
+/*
+ * w8001_connect() is the routine that is called when someone adds a
+ * new serio device that supports the w8001 protocol and registers it as
+ * an input device.
+ */
+
+static int w8001_connect(struct serio *serio, struct serio_driver *drv)
+{
+ struct w8001 *w8001;
+ struct input_dev *input_dev;
+ int err;
+
+ w8001 = kzalloc(sizeof(struct w8001), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!w8001 || !input_dev) {
+ err = -ENOMEM;
+ goto fail1;
+ }
+
+ w8001->serio = serio;
+ w8001->dev = input_dev;
+ init_completion(&w8001->cmd_done);
+ snprintf(w8001->phys, sizeof(w8001->phys), "%s/input0", serio->phys);
+
+ serio_set_drvdata(serio, w8001);
+ err = serio_open(serio, drv);
+ if (err)
+ goto fail2;
+
+ err = w8001_setup(w8001);
+ if (err)
+ goto fail3;
+
+ input_dev->name = w8001->name;
+ input_dev->phys = w8001->phys;
+ input_dev->id.product = w8001->id;
+ input_dev->id.bustype = BUS_RS232;
+ input_dev->id.vendor = 0x056a;
+ input_dev->id.version = 0x0100;
+ input_dev->dev.parent = &serio->dev;
+
+ input_dev->open = w8001_open;
+ input_dev->close = w8001_close;
+
+ input_set_drvdata(input_dev, w8001);
+
+ err = input_register_device(w8001->dev);
+ if (err)
+ goto fail3;
+
+ return 0;
+
+fail3:
+ serio_close(serio);
+fail2:
+ serio_set_drvdata(serio, NULL);
+fail1:
+ input_free_device(input_dev);
+ kfree(w8001);
+ return err;
+}
+
+static struct serio_device_id w8001_serio_ids[] = {
+ {
+ .type = SERIO_RS232,
+ .proto = SERIO_W8001,
+ .id = SERIO_ANY,
+ .extra = SERIO_ANY,
+ },
+ { 0 }
+};
+
+MODULE_DEVICE_TABLE(serio, w8001_serio_ids);
+
+static struct serio_driver w8001_drv = {
+ .driver = {
+ .name = "w8001",
+ },
+ .description = DRIVER_DESC,
+ .id_table = w8001_serio_ids,
+ .interrupt = w8001_interrupt,
+ .connect = w8001_connect,
+ .disconnect = w8001_disconnect,
+};
+
+static int __init w8001_init(void)
+{
+ return serio_register_driver(&w8001_drv);
+}
+
+static void __exit w8001_exit(void)
+{
+ serio_unregister_driver(&w8001_drv);
+}
+
+module_init(w8001_init);
+module_exit(w8001_exit);
diff --git a/drivers/input/touchscreen/wm831x-ts.c b/drivers/input/touchscreen/wm831x-ts.c
new file mode 100644
index 0000000..9175d49
--- /dev/null
+++ b/drivers/input/touchscreen/wm831x-ts.c
@@ -0,0 +1,421 @@
+/*
+ * Touchscreen driver for WM831x PMICs
+ *
+ * Copyright 2011 Wolfson Microelectronics plc.
+ * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/string.h>
+#include <linux/pm.h>
+#include <linux/input.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/mfd/wm831x/core.h>
+#include <linux/mfd/wm831x/irq.h>
+#include <linux/mfd/wm831x/pdata.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <linux/types.h>
+
+/*
+ * R16424 (0x4028) - Touch Control 1
+ */
+#define WM831X_TCH_ENA 0x8000 /* TCH_ENA */
+#define WM831X_TCH_CVT_ENA 0x4000 /* TCH_CVT_ENA */
+#define WM831X_TCH_SLPENA 0x1000 /* TCH_SLPENA */
+#define WM831X_TCH_Z_ENA 0x0400 /* TCH_Z_ENA */
+#define WM831X_TCH_Y_ENA 0x0200 /* TCH_Y_ENA */
+#define WM831X_TCH_X_ENA 0x0100 /* TCH_X_ENA */
+#define WM831X_TCH_DELAY_MASK 0x00E0 /* TCH_DELAY - [7:5] */
+#define WM831X_TCH_DELAY_SHIFT 5 /* TCH_DELAY - [7:5] */
+#define WM831X_TCH_DELAY_WIDTH 3 /* TCH_DELAY - [7:5] */
+#define WM831X_TCH_RATE_MASK 0x001F /* TCH_RATE - [4:0] */
+#define WM831X_TCH_RATE_SHIFT 0 /* TCH_RATE - [4:0] */
+#define WM831X_TCH_RATE_WIDTH 5 /* TCH_RATE - [4:0] */
+
+/*
+ * R16425 (0x4029) - Touch Control 2
+ */
+#define WM831X_TCH_PD_WK 0x2000 /* TCH_PD_WK */
+#define WM831X_TCH_5WIRE 0x1000 /* TCH_5WIRE */
+#define WM831X_TCH_PDONLY 0x0800 /* TCH_PDONLY */
+#define WM831X_TCH_ISEL 0x0100 /* TCH_ISEL */
+#define WM831X_TCH_RPU_MASK 0x000F /* TCH_RPU - [3:0] */
+#define WM831X_TCH_RPU_SHIFT 0 /* TCH_RPU - [3:0] */
+#define WM831X_TCH_RPU_WIDTH 4 /* TCH_RPU - [3:0] */
+
+/*
+ * R16426-8 (0x402A-C) - Touch Data X/Y/X
+ */
+#define WM831X_TCH_PD 0x8000 /* TCH_PD1 */
+#define WM831X_TCH_DATA_MASK 0x0FFF /* TCH_DATA - [11:0] */
+#define WM831X_TCH_DATA_SHIFT 0 /* TCH_DATA - [11:0] */
+#define WM831X_TCH_DATA_WIDTH 12 /* TCH_DATA - [11:0] */
+
+struct wm831x_ts {
+ struct input_dev *input_dev;
+ struct wm831x *wm831x;
+ unsigned int data_irq;
+ unsigned int pd_irq;
+ bool pressure;
+ bool pen_down;
+ struct work_struct pd_data_work;
+};
+
+static void wm831x_pd_data_work(struct work_struct *work)
+{
+ struct wm831x_ts *wm831x_ts =
+ container_of(work, struct wm831x_ts, pd_data_work);
+
+ if (wm831x_ts->pen_down) {
+ enable_irq(wm831x_ts->data_irq);
+ dev_dbg(wm831x_ts->wm831x->dev, "IRQ PD->DATA done\n");
+ } else {
+ enable_irq(wm831x_ts->pd_irq);
+ dev_dbg(wm831x_ts->wm831x->dev, "IRQ DATA->PD done\n");
+ }
+}
+
+static irqreturn_t wm831x_ts_data_irq(int irq, void *irq_data)
+{
+ struct wm831x_ts *wm831x_ts = irq_data;
+ struct wm831x *wm831x = wm831x_ts->wm831x;
+ static int data_types[] = { ABS_X, ABS_Y, ABS_PRESSURE };
+ u16 data[3];
+ int count;
+ int i, ret;
+
+ if (wm831x_ts->pressure)
+ count = 3;
+ else
+ count = 2;
+
+ wm831x_set_bits(wm831x, WM831X_INTERRUPT_STATUS_1,
+ WM831X_TCHDATA_EINT, WM831X_TCHDATA_EINT);
+
+ ret = wm831x_bulk_read(wm831x, WM831X_TOUCH_DATA_X, count,
+ data);
+ if (ret != 0) {
+ dev_err(wm831x->dev, "Failed to read touch data: %d\n",
+ ret);
+ return IRQ_NONE;
+ }
+
+ /*
+ * We get a pen down reading on every reading, report pen up if any
+ * individual reading does so.
+ */
+ wm831x_ts->pen_down = true;
+ for (i = 0; i < count; i++) {
+ if (!(data[i] & WM831X_TCH_PD)) {
+ wm831x_ts->pen_down = false;
+ continue;
+ }
+ input_report_abs(wm831x_ts->input_dev, data_types[i],
+ data[i] & WM831X_TCH_DATA_MASK);
+ }
+
+ if (!wm831x_ts->pen_down) {
+ /* Switch from data to pen down */
+ dev_dbg(wm831x->dev, "IRQ DATA->PD\n");
+
+ disable_irq_nosync(wm831x_ts->data_irq);
+
+ /* Don't need data any more */
+ wm831x_set_bits(wm831x, WM831X_TOUCH_CONTROL_1,
+ WM831X_TCH_X_ENA | WM831X_TCH_Y_ENA |
+ WM831X_TCH_Z_ENA, 0);
+
+ /* Flush any final samples that arrived while reading */
+ wm831x_set_bits(wm831x, WM831X_INTERRUPT_STATUS_1,
+ WM831X_TCHDATA_EINT, WM831X_TCHDATA_EINT);
+
+ wm831x_bulk_read(wm831x, WM831X_TOUCH_DATA_X, count, data);
+
+ if (wm831x_ts->pressure)
+ input_report_abs(wm831x_ts->input_dev,
+ ABS_PRESSURE, 0);
+
+ input_report_key(wm831x_ts->input_dev, BTN_TOUCH, 0);
+
+ schedule_work(&wm831x_ts->pd_data_work);
+ } else {
+ input_report_key(wm831x_ts->input_dev, BTN_TOUCH, 1);
+ }
+
+ input_sync(wm831x_ts->input_dev);
+
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t wm831x_ts_pen_down_irq(int irq, void *irq_data)
+{
+ struct wm831x_ts *wm831x_ts = irq_data;
+ struct wm831x *wm831x = wm831x_ts->wm831x;
+ int ena = 0;
+
+ if (wm831x_ts->pen_down)
+ return IRQ_HANDLED;
+
+ disable_irq_nosync(wm831x_ts->pd_irq);
+
+ /* Start collecting data */
+ if (wm831x_ts->pressure)
+ ena |= WM831X_TCH_Z_ENA;
+
+ wm831x_set_bits(wm831x, WM831X_TOUCH_CONTROL_1,
+ WM831X_TCH_X_ENA | WM831X_TCH_Y_ENA | WM831X_TCH_Z_ENA,
+ WM831X_TCH_X_ENA | WM831X_TCH_Y_ENA | ena);
+
+ wm831x_set_bits(wm831x, WM831X_INTERRUPT_STATUS_1,
+ WM831X_TCHPD_EINT, WM831X_TCHPD_EINT);
+
+ wm831x_ts->pen_down = true;
+
+ /* Switch from pen down to data */
+ dev_dbg(wm831x->dev, "IRQ PD->DATA\n");
+ schedule_work(&wm831x_ts->pd_data_work);
+
+ return IRQ_HANDLED;
+}
+
+static int wm831x_ts_input_open(struct input_dev *idev)
+{
+ struct wm831x_ts *wm831x_ts = input_get_drvdata(idev);
+ struct wm831x *wm831x = wm831x_ts->wm831x;
+
+ wm831x_set_bits(wm831x, WM831X_TOUCH_CONTROL_1,
+ WM831X_TCH_ENA | WM831X_TCH_CVT_ENA |
+ WM831X_TCH_X_ENA | WM831X_TCH_Y_ENA |
+ WM831X_TCH_Z_ENA, WM831X_TCH_ENA);
+
+ wm831x_set_bits(wm831x, WM831X_TOUCH_CONTROL_1,
+ WM831X_TCH_CVT_ENA, WM831X_TCH_CVT_ENA);
+
+ return 0;
+}
+
+static void wm831x_ts_input_close(struct input_dev *idev)
+{
+ struct wm831x_ts *wm831x_ts = input_get_drvdata(idev);
+ struct wm831x *wm831x = wm831x_ts->wm831x;
+
+ /* Shut the controller down, disabling all other functionality too */
+ wm831x_set_bits(wm831x, WM831X_TOUCH_CONTROL_1,
+ WM831X_TCH_ENA | WM831X_TCH_X_ENA |
+ WM831X_TCH_Y_ENA | WM831X_TCH_Z_ENA, 0);
+
+ /* Make sure any pending IRQs are done, the above will prevent
+ * new ones firing.
+ */
+ synchronize_irq(wm831x_ts->data_irq);
+ synchronize_irq(wm831x_ts->pd_irq);
+
+ /* Make sure the IRQ completion work is quiesced */
+ flush_work_sync(&wm831x_ts->pd_data_work);
+
+ /* If we ended up with the pen down then make sure we revert back
+ * to pen detection state for the next time we start up.
+ */
+ if (wm831x_ts->pen_down) {
+ disable_irq(wm831x_ts->data_irq);
+ enable_irq(wm831x_ts->pd_irq);
+ wm831x_ts->pen_down = false;
+ }
+}
+
+static __devinit int wm831x_ts_probe(struct platform_device *pdev)
+{
+ struct wm831x_ts *wm831x_ts;
+ struct wm831x *wm831x = dev_get_drvdata(pdev->dev.parent);
+ struct wm831x_pdata *core_pdata = dev_get_platdata(pdev->dev.parent);
+ struct wm831x_touch_pdata *pdata = NULL;
+ struct input_dev *input_dev;
+ int error, irqf;
+
+ if (core_pdata)
+ pdata = core_pdata->touch;
+
+ wm831x_ts = kzalloc(sizeof(struct wm831x_ts), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!wm831x_ts || !input_dev) {
+ error = -ENOMEM;
+ goto err_alloc;
+ }
+
+ wm831x_ts->wm831x = wm831x;
+ wm831x_ts->input_dev = input_dev;
+ INIT_WORK(&wm831x_ts->pd_data_work, wm831x_pd_data_work);
+
+ /*
+ * If we have a direct IRQ use it, otherwise use the interrupt
+ * from the WM831x IRQ controller.
+ */
+ if (pdata && pdata->data_irq)
+ wm831x_ts->data_irq = pdata->data_irq;
+ else
+ wm831x_ts->data_irq = platform_get_irq_byname(pdev, "TCHDATA");
+
+ if (pdata && pdata->pd_irq)
+ wm831x_ts->pd_irq = pdata->pd_irq;
+ else
+ wm831x_ts->pd_irq = platform_get_irq_byname(pdev, "TCHPD");
+
+ if (pdata)
+ wm831x_ts->pressure = pdata->pressure;
+ else
+ wm831x_ts->pressure = true;
+
+ /* Five wire touchscreens can't report pressure */
+ if (pdata && pdata->fivewire) {
+ wm831x_set_bits(wm831x, WM831X_TOUCH_CONTROL_2,
+ WM831X_TCH_5WIRE, WM831X_TCH_5WIRE);
+
+ /* Pressure measurements are not possible for five wire mode */
+ WARN_ON(pdata->pressure && pdata->fivewire);
+ wm831x_ts->pressure = false;
+ } else {
+ wm831x_set_bits(wm831x, WM831X_TOUCH_CONTROL_2,
+ WM831X_TCH_5WIRE, 0);
+ }
+
+ if (pdata) {
+ switch (pdata->isel) {
+ default:
+ dev_err(&pdev->dev, "Unsupported ISEL setting: %d\n",
+ pdata->isel);
+ /* Fall through */
+ case 200:
+ case 0:
+ wm831x_set_bits(wm831x, WM831X_TOUCH_CONTROL_2,
+ WM831X_TCH_ISEL, 0);
+ break;
+ case 400:
+ wm831x_set_bits(wm831x, WM831X_TOUCH_CONTROL_2,
+ WM831X_TCH_ISEL, WM831X_TCH_ISEL);
+ break;
+ }
+ }
+
+ wm831x_set_bits(wm831x, WM831X_TOUCH_CONTROL_2,
+ WM831X_TCH_PDONLY, 0);
+
+ /* Default to 96 samples/sec */
+ wm831x_set_bits(wm831x, WM831X_TOUCH_CONTROL_1,
+ WM831X_TCH_RATE_MASK, 6);
+
+ if (pdata && pdata->data_irqf)
+ irqf = pdata->data_irqf;
+ else
+ irqf = IRQF_TRIGGER_HIGH;
+
+ error = request_threaded_irq(wm831x_ts->data_irq,
+ NULL, wm831x_ts_data_irq,
+ irqf | IRQF_ONESHOT,
+ "Touchscreen data", wm831x_ts);
+ if (error) {
+ dev_err(&pdev->dev, "Failed to request data IRQ %d: %d\n",
+ wm831x_ts->data_irq, error);
+ goto err_alloc;
+ }
+ disable_irq(wm831x_ts->data_irq);
+
+ if (pdata && pdata->pd_irqf)
+ irqf = pdata->pd_irqf;
+ else
+ irqf = IRQF_TRIGGER_HIGH;
+
+ error = request_threaded_irq(wm831x_ts->pd_irq,
+ NULL, wm831x_ts_pen_down_irq,
+ irqf | IRQF_ONESHOT,
+ "Touchscreen pen down", wm831x_ts);
+ if (error) {
+ dev_err(&pdev->dev, "Failed to request pen down IRQ %d: %d\n",
+ wm831x_ts->pd_irq, error);
+ goto err_data_irq;
+ }
+
+ /* set up touch configuration */
+ input_dev->name = "WM831x touchscreen";
+ input_dev->phys = "wm831x";
+ input_dev->open = wm831x_ts_input_open;
+ input_dev->close = wm831x_ts_input_close;
+
+ __set_bit(EV_ABS, input_dev->evbit);
+ __set_bit(EV_KEY, input_dev->evbit);
+ __set_bit(BTN_TOUCH, input_dev->keybit);
+
+ input_set_abs_params(input_dev, ABS_X, 0, 4095, 5, 0);
+ input_set_abs_params(input_dev, ABS_Y, 0, 4095, 5, 0);
+ if (wm831x_ts->pressure)
+ input_set_abs_params(input_dev, ABS_PRESSURE, 0, 4095, 5, 0);
+
+ input_set_drvdata(input_dev, wm831x_ts);
+ input_dev->dev.parent = &pdev->dev;
+
+ error = input_register_device(input_dev);
+ if (error)
+ goto err_pd_irq;
+
+ platform_set_drvdata(pdev, wm831x_ts);
+ return 0;
+
+err_pd_irq:
+ free_irq(wm831x_ts->pd_irq, wm831x_ts);
+err_data_irq:
+ free_irq(wm831x_ts->data_irq, wm831x_ts);
+err_alloc:
+ input_free_device(input_dev);
+ kfree(wm831x_ts);
+
+ return error;
+}
+
+static __devexit int wm831x_ts_remove(struct platform_device *pdev)
+{
+ struct wm831x_ts *wm831x_ts = platform_get_drvdata(pdev);
+
+ free_irq(wm831x_ts->pd_irq, wm831x_ts);
+ free_irq(wm831x_ts->data_irq, wm831x_ts);
+ input_unregister_device(wm831x_ts->input_dev);
+ kfree(wm831x_ts);
+
+ platform_set_drvdata(pdev, NULL);
+ return 0;
+}
+
+static struct platform_driver wm831x_ts_driver = {
+ .driver = {
+ .name = "wm831x-touch",
+ .owner = THIS_MODULE,
+ },
+ .probe = wm831x_ts_probe,
+ .remove = __devexit_p(wm831x_ts_remove),
+};
+
+static int __init wm831x_ts_init(void)
+{
+ return platform_driver_register(&wm831x_ts_driver);
+}
+module_init(wm831x_ts_init);
+
+static void __exit wm831x_ts_exit(void)
+{
+ platform_driver_unregister(&wm831x_ts_driver);
+}
+module_exit(wm831x_ts_exit);
+
+/* Module information */
+MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
+MODULE_DESCRIPTION("WM831x PMIC touchscreen driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:wm831x-touch");
diff --git a/drivers/input/touchscreen/wm9705.c b/drivers/input/touchscreen/wm9705.c
new file mode 100644
index 0000000..adc13a5
--- /dev/null
+++ b/drivers/input/touchscreen/wm9705.c
@@ -0,0 +1,350 @@
+/*
+ * wm9705.c -- Codec driver for Wolfson WM9705 AC97 Codec.
+ *
+ * Copyright 2003, 2004, 2005, 2006, 2007 Wolfson Microelectronics PLC.
+ * Author: Liam Girdwood <lrg@slimlogic.co.uk>
+ * Parts Copyright : Ian Molton <spyro@f2s.com>
+ * Andrew Zabolotny <zap@homelink.ru>
+ * Russell King <rmk@arm.linux.org.uk>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/kernel.h>
+#include <linux/input.h>
+#include <linux/delay.h>
+#include <linux/bitops.h>
+#include <linux/wm97xx.h>
+
+#define TS_NAME "wm97xx"
+#define WM9705_VERSION "1.00"
+#define DEFAULT_PRESSURE 0xb0c0
+
+/*
+ * Module parameters
+ */
+
+/*
+ * Set current used for pressure measurement.
+ *
+ * Set pil = 2 to use 400uA
+ * pil = 1 to use 200uA and
+ * pil = 0 to disable pressure measurement.
+ *
+ * This is used to increase the range of values returned by the adc
+ * when measureing touchpanel pressure.
+ */
+static int pil;
+module_param(pil, int, 0);
+MODULE_PARM_DESC(pil, "Set current used for pressure measurement.");
+
+/*
+ * Set threshold for pressure measurement.
+ *
+ * Pen down pressure below threshold is ignored.
+ */
+static int pressure = DEFAULT_PRESSURE & 0xfff;
+module_param(pressure, int, 0);
+MODULE_PARM_DESC(pressure, "Set threshold for pressure measurement.");
+
+/*
+ * Set adc sample delay.
+ *
+ * For accurate touchpanel measurements, some settling time may be
+ * required between the switch matrix applying a voltage across the
+ * touchpanel plate and the ADC sampling the signal.
+ *
+ * This delay can be set by setting delay = n, where n is the array
+ * position of the delay in the array delay_table below.
+ * Long delays > 1ms are supported for completeness, but are not
+ * recommended.
+ */
+static int delay = 4;
+module_param(delay, int, 0);
+MODULE_PARM_DESC(delay, "Set adc sample delay.");
+
+/*
+ * Pen detect comparator threshold.
+ *
+ * 0 to Vmid in 15 steps, 0 = use zero power comparator with Vmid threshold
+ * i.e. 1 = Vmid/15 threshold
+ * 15 = Vmid/1 threshold
+ *
+ * Adjust this value if you are having problems with pen detect not
+ * detecting any down events.
+ */
+static int pdd = 8;
+module_param(pdd, int, 0);
+MODULE_PARM_DESC(pdd, "Set pen detect comparator threshold");
+
+/*
+ * Set adc mask function.
+ *
+ * Sources of glitch noise, such as signals driving an LCD display, may feed
+ * through to the touch screen plates and affect measurement accuracy. In
+ * order to minimise this, a signal may be applied to the MASK pin to delay or
+ * synchronise the sampling.
+ *
+ * 0 = No delay or sync
+ * 1 = High on pin stops conversions
+ * 2 = Edge triggered, edge on pin delays conversion by delay param (above)
+ * 3 = Edge triggered, edge on pin starts conversion after delay param
+ */
+static int mask;
+module_param(mask, int, 0);
+MODULE_PARM_DESC(mask, "Set adc mask function.");
+
+/*
+ * ADC sample delay times in uS
+ */
+static const int delay_table[] = {
+ 21, /* 1 AC97 Link frames */
+ 42, /* 2 */
+ 84, /* 4 */
+ 167, /* 8 */
+ 333, /* 16 */
+ 667, /* 32 */
+ 1000, /* 48 */
+ 1333, /* 64 */
+ 2000, /* 96 */
+ 2667, /* 128 */
+ 3333, /* 160 */
+ 4000, /* 192 */
+ 4667, /* 224 */
+ 5333, /* 256 */
+ 6000, /* 288 */
+ 0 /* No delay, switch matrix always on */
+};
+
+/*
+ * Delay after issuing a POLL command.
+ *
+ * The delay is 3 AC97 link frames + the touchpanel settling delay
+ */
+static inline void poll_delay(int d)
+{
+ udelay(3 * AC97_LINK_FRAME + delay_table[d]);
+}
+
+/*
+ * set up the physical settings of the WM9705
+ */
+static void wm9705_phy_init(struct wm97xx *wm)
+{
+ u16 dig1 = 0, dig2 = WM97XX_RPR;
+
+ /*
+ * mute VIDEO and AUX as they share X and Y touchscreen
+ * inputs on the WM9705
+ */
+ wm97xx_reg_write(wm, AC97_AUX, 0x8000);
+ wm97xx_reg_write(wm, AC97_VIDEO, 0x8000);
+
+ /* touchpanel pressure current*/
+ if (pil == 2) {
+ dig2 |= WM9705_PIL;
+ dev_dbg(wm->dev,
+ "setting pressure measurement current to 400uA.");
+ } else if (pil)
+ dev_dbg(wm->dev,
+ "setting pressure measurement current to 200uA.");
+ if (!pil)
+ pressure = 0;
+
+ /* polling mode sample settling delay */
+ if (delay != 4) {
+ if (delay < 0 || delay > 15) {
+ dev_dbg(wm->dev, "supplied delay out of range.");
+ delay = 4;
+ }
+ }
+ dig1 &= 0xff0f;
+ dig1 |= WM97XX_DELAY(delay);
+ dev_dbg(wm->dev, "setting adc sample delay to %d u Secs.",
+ delay_table[delay]);
+
+ /* WM9705 pdd */
+ dig2 |= (pdd & 0x000f);
+ dev_dbg(wm->dev, "setting pdd to Vmid/%d", 1 - (pdd & 0x000f));
+
+ /* mask */
+ dig2 |= ((mask & 0x3) << 4);
+
+ wm97xx_reg_write(wm, AC97_WM97XX_DIGITISER1, dig1);
+ wm97xx_reg_write(wm, AC97_WM97XX_DIGITISER2, dig2);
+}
+
+static void wm9705_dig_enable(struct wm97xx *wm, int enable)
+{
+ if (enable) {
+ wm97xx_reg_write(wm, AC97_WM97XX_DIGITISER2,
+ wm->dig[2] | WM97XX_PRP_DET_DIG);
+ wm97xx_reg_read(wm, AC97_WM97XX_DIGITISER_RD); /* dummy read */
+ } else
+ wm97xx_reg_write(wm, AC97_WM97XX_DIGITISER2,
+ wm->dig[2] & ~WM97XX_PRP_DET_DIG);
+}
+
+static void wm9705_aux_prepare(struct wm97xx *wm)
+{
+ memcpy(wm->dig_save, wm->dig, sizeof(wm->dig));
+ wm97xx_reg_write(wm, AC97_WM97XX_DIGITISER1, 0);
+ wm97xx_reg_write(wm, AC97_WM97XX_DIGITISER2, WM97XX_PRP_DET_DIG);
+}
+
+static void wm9705_dig_restore(struct wm97xx *wm)
+{
+ wm97xx_reg_write(wm, AC97_WM97XX_DIGITISER1, wm->dig_save[1]);
+ wm97xx_reg_write(wm, AC97_WM97XX_DIGITISER2, wm->dig_save[2]);
+}
+
+static inline int is_pden(struct wm97xx *wm)
+{
+ return wm->dig[2] & WM9705_PDEN;
+}
+
+/*
+ * Read a sample from the WM9705 adc in polling mode.
+ */
+static int wm9705_poll_sample(struct wm97xx *wm, int adcsel, int *sample)
+{
+ int timeout = 5 * delay;
+ bool wants_pen = adcsel & WM97XX_PEN_DOWN;
+
+ if (wants_pen && !wm->pen_probably_down) {
+ u16 data = wm97xx_reg_read(wm, AC97_WM97XX_DIGITISER_RD);
+ if (!(data & WM97XX_PEN_DOWN))
+ return RC_PENUP;
+ wm->pen_probably_down = 1;
+ }
+
+ /* set up digitiser */
+ if (wm->mach_ops && wm->mach_ops->pre_sample)
+ wm->mach_ops->pre_sample(adcsel);
+ wm97xx_reg_write(wm, AC97_WM97XX_DIGITISER1, (adcsel & WM97XX_ADCSEL_MASK)
+ | WM97XX_POLL | WM97XX_DELAY(delay));
+
+ /* wait 3 AC97 time slots + delay for conversion */
+ poll_delay(delay);
+
+ /* wait for POLL to go low */
+ while ((wm97xx_reg_read(wm, AC97_WM97XX_DIGITISER1) & WM97XX_POLL)
+ && timeout) {
+ udelay(AC97_LINK_FRAME);
+ timeout--;
+ }
+
+ if (timeout == 0) {
+ /* If PDEN is set, we can get a timeout when pen goes up */
+ if (is_pden(wm))
+ wm->pen_probably_down = 0;
+ else
+ dev_dbg(wm->dev, "adc sample timeout");
+ return RC_PENUP;
+ }
+
+ *sample = wm97xx_reg_read(wm, AC97_WM97XX_DIGITISER_RD);
+ if (wm->mach_ops && wm->mach_ops->post_sample)
+ wm->mach_ops->post_sample(adcsel);
+
+ /* check we have correct sample */
+ if ((*sample ^ adcsel) & WM97XX_ADCSEL_MASK) {
+ dev_dbg(wm->dev, "adc wrong sample, wanted %x got %x",
+ adcsel & WM97XX_ADCSEL_MASK,
+ *sample & WM97XX_ADCSEL_MASK);
+ return RC_PENUP;
+ }
+
+ if (wants_pen && !(*sample & WM97XX_PEN_DOWN)) {
+ wm->pen_probably_down = 0;
+ return RC_PENUP;
+ }
+
+ return RC_VALID;
+}
+
+/*
+ * Sample the WM9705 touchscreen in polling mode
+ */
+static int wm9705_poll_touch(struct wm97xx *wm, struct wm97xx_data *data)
+{
+ int rc;
+
+ rc = wm9705_poll_sample(wm, WM97XX_ADCSEL_X | WM97XX_PEN_DOWN, &data->x);
+ if (rc != RC_VALID)
+ return rc;
+ rc = wm9705_poll_sample(wm, WM97XX_ADCSEL_Y | WM97XX_PEN_DOWN, &data->y);
+ if (rc != RC_VALID)
+ return rc;
+ if (pil) {
+ rc = wm9705_poll_sample(wm, WM97XX_ADCSEL_PRES | WM97XX_PEN_DOWN, &data->p);
+ if (rc != RC_VALID)
+ return rc;
+ } else
+ data->p = DEFAULT_PRESSURE;
+
+ return RC_VALID;
+}
+
+/*
+ * Enable WM9705 continuous mode, i.e. touch data is streamed across
+ * an AC97 slot
+ */
+static int wm9705_acc_enable(struct wm97xx *wm, int enable)
+{
+ u16 dig1, dig2;
+ int ret = 0;
+
+ dig1 = wm->dig[1];
+ dig2 = wm->dig[2];
+
+ if (enable) {
+ /* continuous mode */
+ if (wm->mach_ops->acc_startup &&
+ (ret = wm->mach_ops->acc_startup(wm)) < 0)
+ return ret;
+ dig1 &= ~(WM97XX_CM_RATE_MASK | WM97XX_ADCSEL_MASK |
+ WM97XX_DELAY_MASK | WM97XX_SLT_MASK);
+ dig1 |= WM97XX_CTC | WM97XX_COO | WM97XX_SLEN |
+ WM97XX_DELAY(delay) |
+ WM97XX_SLT(wm->acc_slot) |
+ WM97XX_RATE(wm->acc_rate);
+ if (pil)
+ dig1 |= WM97XX_ADCSEL_PRES;
+ dig2 |= WM9705_PDEN;
+ } else {
+ dig1 &= ~(WM97XX_CTC | WM97XX_COO | WM97XX_SLEN);
+ dig2 &= ~WM9705_PDEN;
+ if (wm->mach_ops->acc_shutdown)
+ wm->mach_ops->acc_shutdown(wm);
+ }
+
+ wm97xx_reg_write(wm, AC97_WM97XX_DIGITISER1, dig1);
+ wm97xx_reg_write(wm, AC97_WM97XX_DIGITISER2, dig2);
+
+ return ret;
+}
+
+struct wm97xx_codec_drv wm9705_codec = {
+ .id = WM9705_ID2,
+ .name = "wm9705",
+ .poll_sample = wm9705_poll_sample,
+ .poll_touch = wm9705_poll_touch,
+ .acc_enable = wm9705_acc_enable,
+ .phy_init = wm9705_phy_init,
+ .dig_enable = wm9705_dig_enable,
+ .dig_restore = wm9705_dig_restore,
+ .aux_prepare = wm9705_aux_prepare,
+};
+EXPORT_SYMBOL_GPL(wm9705_codec);
+
+/* Module information */
+MODULE_AUTHOR("Liam Girdwood <lrg@slimlogic.co.uk>");
+MODULE_DESCRIPTION("WM9705 Touch Screen Driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/input/touchscreen/wm9712.c b/drivers/input/touchscreen/wm9712.c
new file mode 100644
index 0000000..6e743e3
--- /dev/null
+++ b/drivers/input/touchscreen/wm9712.c
@@ -0,0 +1,467 @@
+/*
+ * wm9712.c -- Codec driver for Wolfson WM9712 AC97 Codecs.
+ *
+ * Copyright 2003, 2004, 2005, 2006, 2007 Wolfson Microelectronics PLC.
+ * Author: Liam Girdwood <lrg@slimlogic.co.uk>
+ * Parts Copyright : Ian Molton <spyro@f2s.com>
+ * Andrew Zabolotny <zap@homelink.ru>
+ * Russell King <rmk@arm.linux.org.uk>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/kernel.h>
+#include <linux/input.h>
+#include <linux/delay.h>
+#include <linux/bitops.h>
+#include <linux/wm97xx.h>
+
+#define TS_NAME "wm97xx"
+#define WM9712_VERSION "1.00"
+#define DEFAULT_PRESSURE 0xb0c0
+
+/*
+ * Module parameters
+ */
+
+/*
+ * Set internal pull up for pen detect.
+ *
+ * Pull up is in the range 1.02k (least sensitive) to 64k (most sensitive)
+ * i.e. pull up resistance = 64k Ohms / rpu.
+ *
+ * Adjust this value if you are having problems with pen detect not
+ * detecting any down event.
+ */
+static int rpu = 8;
+module_param(rpu, int, 0);
+MODULE_PARM_DESC(rpu, "Set internal pull up resitor for pen detect.");
+
+/*
+ * Set current used for pressure measurement.
+ *
+ * Set pil = 2 to use 400uA
+ * pil = 1 to use 200uA and
+ * pil = 0 to disable pressure measurement.
+ *
+ * This is used to increase the range of values returned by the adc
+ * when measureing touchpanel pressure.
+ */
+static int pil;
+module_param(pil, int, 0);
+MODULE_PARM_DESC(pil, "Set current used for pressure measurement.");
+
+/*
+ * Set threshold for pressure measurement.
+ *
+ * Pen down pressure below threshold is ignored.
+ */
+static int pressure = DEFAULT_PRESSURE & 0xfff;
+module_param(pressure, int, 0);
+MODULE_PARM_DESC(pressure, "Set threshold for pressure measurement.");
+
+/*
+ * Set adc sample delay.
+ *
+ * For accurate touchpanel measurements, some settling time may be
+ * required between the switch matrix applying a voltage across the
+ * touchpanel plate and the ADC sampling the signal.
+ *
+ * This delay can be set by setting delay = n, where n is the array
+ * position of the delay in the array delay_table below.
+ * Long delays > 1ms are supported for completeness, but are not
+ * recommended.
+ */
+static int delay = 3;
+module_param(delay, int, 0);
+MODULE_PARM_DESC(delay, "Set adc sample delay.");
+
+/*
+ * Set five_wire = 1 to use a 5 wire touchscreen.
+ *
+ * NOTE: Five wire mode does not allow for readback of pressure.
+ */
+static int five_wire;
+module_param(five_wire, int, 0);
+MODULE_PARM_DESC(five_wire, "Set to '1' to use 5-wire touchscreen.");
+
+/*
+ * Set adc mask function.
+ *
+ * Sources of glitch noise, such as signals driving an LCD display, may feed
+ * through to the touch screen plates and affect measurement accuracy. In
+ * order to minimise this, a signal may be applied to the MASK pin to delay or
+ * synchronise the sampling.
+ *
+ * 0 = No delay or sync
+ * 1 = High on pin stops conversions
+ * 2 = Edge triggered, edge on pin delays conversion by delay param (above)
+ * 3 = Edge triggered, edge on pin starts conversion after delay param
+ */
+static int mask;
+module_param(mask, int, 0);
+MODULE_PARM_DESC(mask, "Set adc mask function.");
+
+/*
+ * Coordinate Polling Enable.
+ *
+ * Set to 1 to enable coordinate polling. e.g. x,y[,p] is sampled together
+ * for every poll.
+ */
+static int coord;
+module_param(coord, int, 0);
+MODULE_PARM_DESC(coord, "Polling coordinate mode");
+
+/*
+ * ADC sample delay times in uS
+ */
+static const int delay_table[] = {
+ 21, /* 1 AC97 Link frames */
+ 42, /* 2 */
+ 84, /* 4 */
+ 167, /* 8 */
+ 333, /* 16 */
+ 667, /* 32 */
+ 1000, /* 48 */
+ 1333, /* 64 */
+ 2000, /* 96 */
+ 2667, /* 128 */
+ 3333, /* 160 */
+ 4000, /* 192 */
+ 4667, /* 224 */
+ 5333, /* 256 */
+ 6000, /* 288 */
+ 0 /* No delay, switch matrix always on */
+};
+
+/*
+ * Delay after issuing a POLL command.
+ *
+ * The delay is 3 AC97 link frames + the touchpanel settling delay
+ */
+static inline void poll_delay(int d)
+{
+ udelay(3 * AC97_LINK_FRAME + delay_table[d]);
+}
+
+/*
+ * set up the physical settings of the WM9712
+ */
+static void wm9712_phy_init(struct wm97xx *wm)
+{
+ u16 dig1 = 0;
+ u16 dig2 = WM97XX_RPR | WM9712_RPU(1);
+
+ /* WM9712 rpu */
+ if (rpu) {
+ dig2 &= 0xffc0;
+ dig2 |= WM9712_RPU(rpu);
+ dev_dbg(wm->dev, "setting pen detect pull-up to %d Ohms",
+ 64000 / rpu);
+ }
+
+ /* WM9712 five wire */
+ if (five_wire) {
+ dig2 |= WM9712_45W;
+ dev_dbg(wm->dev, "setting 5-wire touchscreen mode.");
+
+ if (pil) {
+ dev_warn(wm->dev, "pressure measurement is not "
+ "supported in 5-wire mode\n");
+ pil = 0;
+ }
+ }
+
+ /* touchpanel pressure current*/
+ if (pil == 2) {
+ dig2 |= WM9712_PIL;
+ dev_dbg(wm->dev,
+ "setting pressure measurement current to 400uA.");
+ } else if (pil)
+ dev_dbg(wm->dev,
+ "setting pressure measurement current to 200uA.");
+ if (!pil)
+ pressure = 0;
+
+ /* polling mode sample settling delay */
+ if (delay < 0 || delay > 15) {
+ dev_dbg(wm->dev, "supplied delay out of range.");
+ delay = 4;
+ }
+ dig1 &= 0xff0f;
+ dig1 |= WM97XX_DELAY(delay);
+ dev_dbg(wm->dev, "setting adc sample delay to %d u Secs.",
+ delay_table[delay]);
+
+ /* mask */
+ dig2 |= ((mask & 0x3) << 6);
+ if (mask) {
+ u16 reg;
+ /* Set GPIO4 as Mask Pin*/
+ reg = wm97xx_reg_read(wm, AC97_MISC_AFE);
+ wm97xx_reg_write(wm, AC97_MISC_AFE, reg | WM97XX_GPIO_4);
+ reg = wm97xx_reg_read(wm, AC97_GPIO_CFG);
+ wm97xx_reg_write(wm, AC97_GPIO_CFG, reg | WM97XX_GPIO_4);
+ }
+
+ /* wait - coord mode */
+ if (coord)
+ dig2 |= WM9712_WAIT;
+
+ wm97xx_reg_write(wm, AC97_WM97XX_DIGITISER1, dig1);
+ wm97xx_reg_write(wm, AC97_WM97XX_DIGITISER2, dig2);
+}
+
+static void wm9712_dig_enable(struct wm97xx *wm, int enable)
+{
+ u16 dig2 = wm->dig[2];
+
+ if (enable) {
+ wm97xx_reg_write(wm, AC97_WM97XX_DIGITISER2,
+ dig2 | WM97XX_PRP_DET_DIG);
+ wm97xx_reg_read(wm, AC97_WM97XX_DIGITISER_RD); /* dummy read */
+ } else
+ wm97xx_reg_write(wm, AC97_WM97XX_DIGITISER2,
+ dig2 & ~WM97XX_PRP_DET_DIG);
+}
+
+static void wm9712_aux_prepare(struct wm97xx *wm)
+{
+ memcpy(wm->dig_save, wm->dig, sizeof(wm->dig));
+ wm97xx_reg_write(wm, AC97_WM97XX_DIGITISER1, 0);
+ wm97xx_reg_write(wm, AC97_WM97XX_DIGITISER2, WM97XX_PRP_DET_DIG);
+}
+
+static void wm9712_dig_restore(struct wm97xx *wm)
+{
+ wm97xx_reg_write(wm, AC97_WM97XX_DIGITISER1, wm->dig_save[1]);
+ wm97xx_reg_write(wm, AC97_WM97XX_DIGITISER2, wm->dig_save[2]);
+}
+
+static inline int is_pden(struct wm97xx *wm)
+{
+ return wm->dig[2] & WM9712_PDEN;
+}
+
+/*
+ * Read a sample from the WM9712 adc in polling mode.
+ */
+static int wm9712_poll_sample(struct wm97xx *wm, int adcsel, int *sample)
+{
+ int timeout = 5 * delay;
+ bool wants_pen = adcsel & WM97XX_PEN_DOWN;
+
+ if (wants_pen && !wm->pen_probably_down) {
+ u16 data = wm97xx_reg_read(wm, AC97_WM97XX_DIGITISER_RD);
+ if (!(data & WM97XX_PEN_DOWN))
+ return RC_PENUP;
+ wm->pen_probably_down = 1;
+ }
+
+ /* set up digitiser */
+ if (wm->mach_ops && wm->mach_ops->pre_sample)
+ wm->mach_ops->pre_sample(adcsel);
+ wm97xx_reg_write(wm, AC97_WM97XX_DIGITISER1, (adcsel & WM97XX_ADCSEL_MASK)
+ | WM97XX_POLL | WM97XX_DELAY(delay));
+
+ /* wait 3 AC97 time slots + delay for conversion */
+ poll_delay(delay);
+
+ /* wait for POLL to go low */
+ while ((wm97xx_reg_read(wm, AC97_WM97XX_DIGITISER1) & WM97XX_POLL)
+ && timeout) {
+ udelay(AC97_LINK_FRAME);
+ timeout--;
+ }
+
+ if (timeout <= 0) {
+ /* If PDEN is set, we can get a timeout when pen goes up */
+ if (is_pden(wm))
+ wm->pen_probably_down = 0;
+ else
+ dev_dbg(wm->dev, "adc sample timeout");
+ return RC_PENUP;
+ }
+
+ *sample = wm97xx_reg_read(wm, AC97_WM97XX_DIGITISER_RD);
+ if (wm->mach_ops && wm->mach_ops->post_sample)
+ wm->mach_ops->post_sample(adcsel);
+
+ /* check we have correct sample */
+ if ((*sample ^ adcsel) & WM97XX_ADCSEL_MASK) {
+ dev_dbg(wm->dev, "adc wrong sample, wanted %x got %x",
+ adcsel & WM97XX_ADCSEL_MASK,
+ *sample & WM97XX_ADCSEL_MASK);
+ return RC_PENUP;
+ }
+
+ if (wants_pen && !(*sample & WM97XX_PEN_DOWN)) {
+ wm->pen_probably_down = 0;
+ return RC_PENUP;
+ }
+
+ return RC_VALID;
+}
+
+/*
+ * Read a coord from the WM9712 adc in polling mode.
+ */
+static int wm9712_poll_coord(struct wm97xx *wm, struct wm97xx_data *data)
+{
+ int timeout = 5 * delay;
+
+ if (!wm->pen_probably_down) {
+ u16 data_rd = wm97xx_reg_read(wm, AC97_WM97XX_DIGITISER_RD);
+ if (!(data_rd & WM97XX_PEN_DOWN))
+ return RC_PENUP;
+ wm->pen_probably_down = 1;
+ }
+
+ /* set up digitiser */
+ if (wm->mach_ops && wm->mach_ops->pre_sample)
+ wm->mach_ops->pre_sample(WM97XX_ADCSEL_X | WM97XX_ADCSEL_Y);
+
+ wm97xx_reg_write(wm, AC97_WM97XX_DIGITISER1,
+ WM97XX_COO | WM97XX_POLL | WM97XX_DELAY(delay));
+
+ /* wait 3 AC97 time slots + delay for conversion and read x */
+ poll_delay(delay);
+ data->x = wm97xx_reg_read(wm, AC97_WM97XX_DIGITISER_RD);
+ /* wait for POLL to go low */
+ while ((wm97xx_reg_read(wm, AC97_WM97XX_DIGITISER1) & WM97XX_POLL)
+ && timeout) {
+ udelay(AC97_LINK_FRAME);
+ timeout--;
+ }
+
+ if (timeout <= 0) {
+ /* If PDEN is set, we can get a timeout when pen goes up */
+ if (is_pden(wm))
+ wm->pen_probably_down = 0;
+ else
+ dev_dbg(wm->dev, "adc sample timeout");
+ return RC_PENUP;
+ }
+
+ /* read back y data */
+ data->y = wm97xx_reg_read(wm, AC97_WM97XX_DIGITISER_RD);
+ if (pil)
+ data->p = wm97xx_reg_read(wm, AC97_WM97XX_DIGITISER_RD);
+ else
+ data->p = DEFAULT_PRESSURE;
+
+ if (wm->mach_ops && wm->mach_ops->post_sample)
+ wm->mach_ops->post_sample(WM97XX_ADCSEL_X | WM97XX_ADCSEL_Y);
+
+ /* check we have correct sample */
+ if (!(data->x & WM97XX_ADCSEL_X) || !(data->y & WM97XX_ADCSEL_Y))
+ goto err;
+ if (pil && !(data->p & WM97XX_ADCSEL_PRES))
+ goto err;
+
+ if (!(data->x & WM97XX_PEN_DOWN) || !(data->y & WM97XX_PEN_DOWN)) {
+ wm->pen_probably_down = 0;
+ return RC_PENUP;
+ }
+ return RC_VALID;
+err:
+ return 0;
+}
+
+/*
+ * Sample the WM9712 touchscreen in polling mode
+ */
+static int wm9712_poll_touch(struct wm97xx *wm, struct wm97xx_data *data)
+{
+ int rc;
+
+ if (coord) {
+ rc = wm9712_poll_coord(wm, data);
+ if (rc != RC_VALID)
+ return rc;
+ } else {
+ rc = wm9712_poll_sample(wm, WM97XX_ADCSEL_X | WM97XX_PEN_DOWN,
+ &data->x);
+ if (rc != RC_VALID)
+ return rc;
+
+ rc = wm9712_poll_sample(wm, WM97XX_ADCSEL_Y | WM97XX_PEN_DOWN,
+ &data->y);
+ if (rc != RC_VALID)
+ return rc;
+
+ if (pil && !five_wire) {
+ rc = wm9712_poll_sample(wm, WM97XX_ADCSEL_PRES | WM97XX_PEN_DOWN,
+ &data->p);
+ if (rc != RC_VALID)
+ return rc;
+ } else
+ data->p = DEFAULT_PRESSURE;
+ }
+ return RC_VALID;
+}
+
+/*
+ * Enable WM9712 continuous mode, i.e. touch data is streamed across
+ * an AC97 slot
+ */
+static int wm9712_acc_enable(struct wm97xx *wm, int enable)
+{
+ u16 dig1, dig2;
+ int ret = 0;
+
+ dig1 = wm->dig[1];
+ dig2 = wm->dig[2];
+
+ if (enable) {
+ /* continuous mode */
+ if (wm->mach_ops->acc_startup) {
+ ret = wm->mach_ops->acc_startup(wm);
+ if (ret < 0)
+ return ret;
+ }
+ dig1 &= ~(WM97XX_CM_RATE_MASK | WM97XX_ADCSEL_MASK |
+ WM97XX_DELAY_MASK | WM97XX_SLT_MASK);
+ dig1 |= WM97XX_CTC | WM97XX_COO | WM97XX_SLEN |
+ WM97XX_DELAY(delay) |
+ WM97XX_SLT(wm->acc_slot) |
+ WM97XX_RATE(wm->acc_rate);
+ if (pil)
+ dig1 |= WM97XX_ADCSEL_PRES;
+ dig2 |= WM9712_PDEN;
+ } else {
+ dig1 &= ~(WM97XX_CTC | WM97XX_COO | WM97XX_SLEN);
+ dig2 &= ~WM9712_PDEN;
+ if (wm->mach_ops->acc_shutdown)
+ wm->mach_ops->acc_shutdown(wm);
+ }
+
+ wm97xx_reg_write(wm, AC97_WM97XX_DIGITISER1, dig1);
+ wm97xx_reg_write(wm, AC97_WM97XX_DIGITISER2, dig2);
+
+ return 0;
+}
+
+struct wm97xx_codec_drv wm9712_codec = {
+ .id = WM9712_ID2,
+ .name = "wm9712",
+ .poll_sample = wm9712_poll_sample,
+ .poll_touch = wm9712_poll_touch,
+ .acc_enable = wm9712_acc_enable,
+ .phy_init = wm9712_phy_init,
+ .dig_enable = wm9712_dig_enable,
+ .dig_restore = wm9712_dig_restore,
+ .aux_prepare = wm9712_aux_prepare,
+};
+EXPORT_SYMBOL_GPL(wm9712_codec);
+
+/* Module information */
+MODULE_AUTHOR("Liam Girdwood <lrg@slimlogic.co.uk>");
+MODULE_DESCRIPTION("WM9712 Touch Screen Driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/input/touchscreen/wm9713.c b/drivers/input/touchscreen/wm9713.c
new file mode 100644
index 0000000..7405353
--- /dev/null
+++ b/drivers/input/touchscreen/wm9713.c
@@ -0,0 +1,481 @@
+/*
+ * wm9713.c -- Codec touch driver for Wolfson WM9713 AC97 Codec.
+ *
+ * Copyright 2003, 2004, 2005, 2006, 2007, 2008 Wolfson Microelectronics PLC.
+ * Author: Liam Girdwood <lrg@slimlogic.co.uk>
+ * Parts Copyright : Ian Molton <spyro@f2s.com>
+ * Andrew Zabolotny <zap@homelink.ru>
+ * Russell King <rmk@arm.linux.org.uk>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/kernel.h>
+#include <linux/input.h>
+#include <linux/delay.h>
+#include <linux/bitops.h>
+#include <linux/wm97xx.h>
+
+#define TS_NAME "wm97xx"
+#define WM9713_VERSION "1.00"
+#define DEFAULT_PRESSURE 0xb0c0
+
+/*
+ * Module parameters
+ */
+
+/*
+ * Set internal pull up for pen detect.
+ *
+ * Pull up is in the range 1.02k (least sensitive) to 64k (most sensitive)
+ * i.e. pull up resistance = 64k Ohms / rpu.
+ *
+ * Adjust this value if you are having problems with pen detect not
+ * detecting any down event.
+ */
+static int rpu = 8;
+module_param(rpu, int, 0);
+MODULE_PARM_DESC(rpu, "Set internal pull up resitor for pen detect.");
+
+/*
+ * Set current used for pressure measurement.
+ *
+ * Set pil = 2 to use 400uA
+ * pil = 1 to use 200uA and
+ * pil = 0 to disable pressure measurement.
+ *
+ * This is used to increase the range of values returned by the adc
+ * when measureing touchpanel pressure.
+ */
+static int pil;
+module_param(pil, int, 0);
+MODULE_PARM_DESC(pil, "Set current used for pressure measurement.");
+
+/*
+ * Set threshold for pressure measurement.
+ *
+ * Pen down pressure below threshold is ignored.
+ */
+static int pressure = DEFAULT_PRESSURE & 0xfff;
+module_param(pressure, int, 0);
+MODULE_PARM_DESC(pressure, "Set threshold for pressure measurement.");
+
+/*
+ * Set adc sample delay.
+ *
+ * For accurate touchpanel measurements, some settling time may be
+ * required between the switch matrix applying a voltage across the
+ * touchpanel plate and the ADC sampling the signal.
+ *
+ * This delay can be set by setting delay = n, where n is the array
+ * position of the delay in the array delay_table below.
+ * Long delays > 1ms are supported for completeness, but are not
+ * recommended.
+ */
+static int delay = 4;
+module_param(delay, int, 0);
+MODULE_PARM_DESC(delay, "Set adc sample delay.");
+
+/*
+ * Set five_wire = 1 to use a 5 wire touchscreen.
+ *
+ * NOTE: Five wire mode does not allow for readback of pressure.
+ */
+static int five_wire;
+module_param(five_wire, int, 0);
+MODULE_PARM_DESC(five_wire, "Set to '1' to use 5-wire touchscreen.");
+
+/*
+ * Set adc mask function.
+ *
+ * Sources of glitch noise, such as signals driving an LCD display, may feed
+ * through to the touch screen plates and affect measurement accuracy. In
+ * order to minimise this, a signal may be applied to the MASK pin to delay or
+ * synchronise the sampling.
+ *
+ * 0 = No delay or sync
+ * 1 = High on pin stops conversions
+ * 2 = Edge triggered, edge on pin delays conversion by delay param (above)
+ * 3 = Edge triggered, edge on pin starts conversion after delay param
+ */
+static int mask;
+module_param(mask, int, 0);
+MODULE_PARM_DESC(mask, "Set adc mask function.");
+
+/*
+ * Coordinate Polling Enable.
+ *
+ * Set to 1 to enable coordinate polling. e.g. x,y[,p] is sampled together
+ * for every poll.
+ */
+static int coord;
+module_param(coord, int, 0);
+MODULE_PARM_DESC(coord, "Polling coordinate mode");
+
+/*
+ * ADC sample delay times in uS
+ */
+static const int delay_table[] = {
+ 21, /* 1 AC97 Link frames */
+ 42, /* 2 */
+ 84, /* 4 */
+ 167, /* 8 */
+ 333, /* 16 */
+ 667, /* 32 */
+ 1000, /* 48 */
+ 1333, /* 64 */
+ 2000, /* 96 */
+ 2667, /* 128 */
+ 3333, /* 160 */
+ 4000, /* 192 */
+ 4667, /* 224 */
+ 5333, /* 256 */
+ 6000, /* 288 */
+ 0 /* No delay, switch matrix always on */
+};
+
+/*
+ * Delay after issuing a POLL command.
+ *
+ * The delay is 3 AC97 link frames + the touchpanel settling delay
+ */
+static inline void poll_delay(int d)
+{
+ udelay(3 * AC97_LINK_FRAME + delay_table[d]);
+}
+
+/*
+ * set up the physical settings of the WM9713
+ */
+static void wm9713_phy_init(struct wm97xx *wm)
+{
+ u16 dig1 = 0, dig2, dig3;
+
+ /* default values */
+ dig2 = WM97XX_DELAY(4) | WM97XX_SLT(5);
+ dig3 = WM9712_RPU(1);
+
+ /* rpu */
+ if (rpu) {
+ dig3 &= 0xffc0;
+ dig3 |= WM9712_RPU(rpu);
+ dev_info(wm->dev, "setting pen detect pull-up to %d Ohms\n",
+ 64000 / rpu);
+ }
+
+ /* Five wire panel? */
+ if (five_wire) {
+ dig3 |= WM9713_45W;
+ dev_info(wm->dev, "setting 5-wire touchscreen mode.");
+
+ if (pil) {
+ dev_warn(wm->dev,
+ "Pressure measurement not supported in 5 "
+ "wire mode, disabling\n");
+ pil = 0;
+ }
+ }
+
+ /* touchpanel pressure */
+ if (pil == 2) {
+ dig3 |= WM9712_PIL;
+ dev_info(wm->dev,
+ "setting pressure measurement current to 400uA.");
+ } else if (pil)
+ dev_info(wm->dev,
+ "setting pressure measurement current to 200uA.");
+ if (!pil)
+ pressure = 0;
+
+ /* sample settling delay */
+ if (delay < 0 || delay > 15) {
+ dev_info(wm->dev, "supplied delay out of range.");
+ delay = 4;
+ dev_info(wm->dev, "setting adc sample delay to %d u Secs.",
+ delay_table[delay]);
+ }
+ dig2 &= 0xff0f;
+ dig2 |= WM97XX_DELAY(delay);
+
+ /* mask */
+ dig3 |= ((mask & 0x3) << 4);
+ if (coord)
+ dig3 |= WM9713_WAIT;
+
+ wm->misc = wm97xx_reg_read(wm, 0x5a);
+
+ wm97xx_reg_write(wm, AC97_WM9713_DIG1, dig1);
+ wm97xx_reg_write(wm, AC97_WM9713_DIG2, dig2);
+ wm97xx_reg_write(wm, AC97_WM9713_DIG3, dig3);
+ wm97xx_reg_write(wm, AC97_GPIO_STICKY, 0x0);
+}
+
+static void wm9713_dig_enable(struct wm97xx *wm, int enable)
+{
+ u16 val;
+
+ if (enable) {
+ val = wm97xx_reg_read(wm, AC97_EXTENDED_MID);
+ wm97xx_reg_write(wm, AC97_EXTENDED_MID, val & 0x7fff);
+ wm97xx_reg_write(wm, AC97_WM9713_DIG3, wm->dig[2] |
+ WM97XX_PRP_DET_DIG);
+ wm97xx_reg_read(wm, AC97_WM97XX_DIGITISER_RD); /* dummy read */
+ } else {
+ wm97xx_reg_write(wm, AC97_WM9713_DIG3, wm->dig[2] &
+ ~WM97XX_PRP_DET_DIG);
+ val = wm97xx_reg_read(wm, AC97_EXTENDED_MID);
+ wm97xx_reg_write(wm, AC97_EXTENDED_MID, val | 0x8000);
+ }
+}
+
+static void wm9713_dig_restore(struct wm97xx *wm)
+{
+ wm97xx_reg_write(wm, AC97_WM9713_DIG1, wm->dig_save[0]);
+ wm97xx_reg_write(wm, AC97_WM9713_DIG2, wm->dig_save[1]);
+ wm97xx_reg_write(wm, AC97_WM9713_DIG3, wm->dig_save[2]);
+}
+
+static void wm9713_aux_prepare(struct wm97xx *wm)
+{
+ memcpy(wm->dig_save, wm->dig, sizeof(wm->dig));
+ wm97xx_reg_write(wm, AC97_WM9713_DIG1, 0);
+ wm97xx_reg_write(wm, AC97_WM9713_DIG2, 0);
+ wm97xx_reg_write(wm, AC97_WM9713_DIG3, WM97XX_PRP_DET_DIG);
+}
+
+static inline int is_pden(struct wm97xx *wm)
+{
+ return wm->dig[2] & WM9713_PDEN;
+}
+
+/*
+ * Read a sample from the WM9713 adc in polling mode.
+ */
+static int wm9713_poll_sample(struct wm97xx *wm, int adcsel, int *sample)
+{
+ u16 dig1;
+ int timeout = 5 * delay;
+ bool wants_pen = adcsel & WM97XX_PEN_DOWN;
+
+ if (wants_pen && !wm->pen_probably_down) {
+ u16 data = wm97xx_reg_read(wm, AC97_WM97XX_DIGITISER_RD);
+ if (!(data & WM97XX_PEN_DOWN))
+ return RC_PENUP;
+ wm->pen_probably_down = 1;
+ }
+
+ /* set up digitiser */
+ dig1 = wm97xx_reg_read(wm, AC97_WM9713_DIG1);
+ dig1 &= ~WM9713_ADCSEL_MASK;
+ /* WM97XX_ADCSEL_* channels need to be converted to WM9713 format */
+ dig1 |= 1 << ((adcsel & WM97XX_ADCSEL_MASK) >> 12);
+
+ if (wm->mach_ops && wm->mach_ops->pre_sample)
+ wm->mach_ops->pre_sample(adcsel);
+ wm97xx_reg_write(wm, AC97_WM9713_DIG1, dig1 | WM9713_POLL);
+
+ /* wait 3 AC97 time slots + delay for conversion */
+ poll_delay(delay);
+
+ /* wait for POLL to go low */
+ while ((wm97xx_reg_read(wm, AC97_WM9713_DIG1) & WM9713_POLL) &&
+ timeout) {
+ udelay(AC97_LINK_FRAME);
+ timeout--;
+ }
+
+ if (timeout <= 0) {
+ /* If PDEN is set, we can get a timeout when pen goes up */
+ if (is_pden(wm))
+ wm->pen_probably_down = 0;
+ else
+ dev_dbg(wm->dev, "adc sample timeout");
+ return RC_PENUP;
+ }
+
+ *sample = wm97xx_reg_read(wm, AC97_WM97XX_DIGITISER_RD);
+ if (wm->mach_ops && wm->mach_ops->post_sample)
+ wm->mach_ops->post_sample(adcsel);
+
+ /* check we have correct sample */
+ if ((*sample ^ adcsel) & WM97XX_ADCSEL_MASK) {
+ dev_dbg(wm->dev, "adc wrong sample, wanted %x got %x",
+ adcsel & WM97XX_ADCSEL_MASK,
+ *sample & WM97XX_ADCSEL_MASK);
+ return RC_PENUP;
+ }
+
+ if (wants_pen && !(*sample & WM97XX_PEN_DOWN)) {
+ wm->pen_probably_down = 0;
+ return RC_PENUP;
+ }
+
+ return RC_VALID;
+}
+
+/*
+ * Read a coordinate from the WM9713 adc in polling mode.
+ */
+static int wm9713_poll_coord(struct wm97xx *wm, struct wm97xx_data *data)
+{
+ u16 dig1;
+ int timeout = 5 * delay;
+
+ if (!wm->pen_probably_down) {
+ u16 val = wm97xx_reg_read(wm, AC97_WM97XX_DIGITISER_RD);
+ if (!(val & WM97XX_PEN_DOWN))
+ return RC_PENUP;
+ wm->pen_probably_down = 1;
+ }
+
+ /* set up digitiser */
+ dig1 = wm97xx_reg_read(wm, AC97_WM9713_DIG1);
+ dig1 &= ~WM9713_ADCSEL_MASK;
+ if (pil)
+ dig1 |= WM9713_ADCSEL_PRES;
+
+ if (wm->mach_ops && wm->mach_ops->pre_sample)
+ wm->mach_ops->pre_sample(WM97XX_ADCSEL_X | WM97XX_ADCSEL_Y);
+ wm97xx_reg_write(wm, AC97_WM9713_DIG1,
+ dig1 | WM9713_POLL | WM9713_COO);
+
+ /* wait 3 AC97 time slots + delay for conversion */
+ poll_delay(delay);
+ data->x = wm97xx_reg_read(wm, AC97_WM97XX_DIGITISER_RD);
+ /* wait for POLL to go low */
+ while ((wm97xx_reg_read(wm, AC97_WM9713_DIG1) & WM9713_POLL)
+ && timeout) {
+ udelay(AC97_LINK_FRAME);
+ timeout--;
+ }
+
+ if (timeout <= 0) {
+ /* If PDEN is set, we can get a timeout when pen goes up */
+ if (is_pden(wm))
+ wm->pen_probably_down = 0;
+ else
+ dev_dbg(wm->dev, "adc sample timeout");
+ return RC_PENUP;
+ }
+
+ /* read back data */
+ data->y = wm97xx_reg_read(wm, AC97_WM97XX_DIGITISER_RD);
+ if (pil)
+ data->p = wm97xx_reg_read(wm, AC97_WM97XX_DIGITISER_RD);
+ else
+ data->p = DEFAULT_PRESSURE;
+
+ if (wm->mach_ops && wm->mach_ops->post_sample)
+ wm->mach_ops->post_sample(WM97XX_ADCSEL_X | WM97XX_ADCSEL_Y);
+
+ /* check we have correct sample */
+ if (!(data->x & WM97XX_ADCSEL_X) || !(data->y & WM97XX_ADCSEL_Y))
+ goto err;
+ if (pil && !(data->p & WM97XX_ADCSEL_PRES))
+ goto err;
+
+ if (!(data->x & WM97XX_PEN_DOWN) || !(data->y & WM97XX_PEN_DOWN)) {
+ wm->pen_probably_down = 0;
+ return RC_PENUP;
+ }
+ return RC_VALID;
+err:
+ return 0;
+}
+
+/*
+ * Sample the WM9713 touchscreen in polling mode
+ */
+static int wm9713_poll_touch(struct wm97xx *wm, struct wm97xx_data *data)
+{
+ int rc;
+
+ if (coord) {
+ rc = wm9713_poll_coord(wm, data);
+ if (rc != RC_VALID)
+ return rc;
+ } else {
+ rc = wm9713_poll_sample(wm, WM97XX_ADCSEL_X | WM97XX_PEN_DOWN, &data->x);
+ if (rc != RC_VALID)
+ return rc;
+ rc = wm9713_poll_sample(wm, WM97XX_ADCSEL_Y | WM97XX_PEN_DOWN, &data->y);
+ if (rc != RC_VALID)
+ return rc;
+ if (pil) {
+ rc = wm9713_poll_sample(wm, WM97XX_ADCSEL_PRES | WM97XX_PEN_DOWN,
+ &data->p);
+ if (rc != RC_VALID)
+ return rc;
+ } else
+ data->p = DEFAULT_PRESSURE;
+ }
+ return RC_VALID;
+}
+
+/*
+ * Enable WM9713 continuous mode, i.e. touch data is streamed across
+ * an AC97 slot
+ */
+static int wm9713_acc_enable(struct wm97xx *wm, int enable)
+{
+ u16 dig1, dig2, dig3;
+ int ret = 0;
+
+ dig1 = wm->dig[0];
+ dig2 = wm->dig[1];
+ dig3 = wm->dig[2];
+
+ if (enable) {
+ /* continuous mode */
+ if (wm->mach_ops->acc_startup &&
+ (ret = wm->mach_ops->acc_startup(wm)) < 0)
+ return ret;
+
+ dig1 &= ~WM9713_ADCSEL_MASK;
+ dig1 |= WM9713_CTC | WM9713_COO | WM9713_ADCSEL_X |
+ WM9713_ADCSEL_Y;
+ if (pil)
+ dig1 |= WM9713_ADCSEL_PRES;
+ dig2 &= ~(WM97XX_DELAY_MASK | WM97XX_SLT_MASK |
+ WM97XX_CM_RATE_MASK);
+ dig2 |= WM97XX_SLEN | WM97XX_DELAY(delay) |
+ WM97XX_SLT(wm->acc_slot) | WM97XX_RATE(wm->acc_rate);
+ dig3 |= WM9713_PDEN;
+ } else {
+ dig1 &= ~(WM9713_CTC | WM9713_COO);
+ dig2 &= ~WM97XX_SLEN;
+ dig3 &= ~WM9713_PDEN;
+ if (wm->mach_ops->acc_shutdown)
+ wm->mach_ops->acc_shutdown(wm);
+ }
+
+ wm97xx_reg_write(wm, AC97_WM9713_DIG1, dig1);
+ wm97xx_reg_write(wm, AC97_WM9713_DIG2, dig2);
+ wm97xx_reg_write(wm, AC97_WM9713_DIG3, dig3);
+
+ return ret;
+}
+
+struct wm97xx_codec_drv wm9713_codec = {
+ .id = WM9713_ID2,
+ .name = "wm9713",
+ .poll_sample = wm9713_poll_sample,
+ .poll_touch = wm9713_poll_touch,
+ .acc_enable = wm9713_acc_enable,
+ .phy_init = wm9713_phy_init,
+ .dig_enable = wm9713_dig_enable,
+ .dig_restore = wm9713_dig_restore,
+ .aux_prepare = wm9713_aux_prepare,
+};
+EXPORT_SYMBOL_GPL(wm9713_codec);
+
+/* Module information */
+MODULE_AUTHOR("Liam Girdwood <lrg@slimlogic.co.uk>");
+MODULE_DESCRIPTION("WM9713 Touch Screen Driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/input/touchscreen/wm97xx-core.c b/drivers/input/touchscreen/wm97xx-core.c
new file mode 100644
index 0000000..5dbe73a
--- /dev/null
+++ b/drivers/input/touchscreen/wm97xx-core.c
@@ -0,0 +1,848 @@
+/*
+ * wm97xx-core.c -- Touch screen driver core for Wolfson WM9705, WM9712
+ * and WM9713 AC97 Codecs.
+ *
+ * Copyright 2003, 2004, 2005, 2006, 2007, 2008 Wolfson Microelectronics PLC.
+ * Author: Liam Girdwood <lrg@slimlogic.co.uk>
+ * Parts Copyright : Ian Molton <spyro@f2s.com>
+ * Andrew Zabolotny <zap@homelink.ru>
+ * Russell King <rmk@arm.linux.org.uk>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * Notes:
+ *
+ * Features:
+ * - supports WM9705, WM9712, WM9713
+ * - polling mode
+ * - continuous mode (arch-dependent)
+ * - adjustable rpu/dpp settings
+ * - adjustable pressure current
+ * - adjustable sample settle delay
+ * - 4 and 5 wire touchscreens (5 wire is WM9712 only)
+ * - pen down detection
+ * - battery monitor
+ * - sample AUX adcs
+ * - power management
+ * - codec GPIO
+ * - codec event notification
+ * Todo
+ * - Support for async sampling control for noisy LCDs.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/string.h>
+#include <linux/proc_fs.h>
+#include <linux/pm.h>
+#include <linux/interrupt.h>
+#include <linux/bitops.h>
+#include <linux/workqueue.h>
+#include <linux/wm97xx.h>
+#include <linux/uaccess.h>
+#include <linux/io.h>
+#include <linux/slab.h>
+
+#define TS_NAME "wm97xx"
+#define WM_CORE_VERSION "1.00"
+#define DEFAULT_PRESSURE 0xb0c0
+
+
+/*
+ * Touchscreen absolute values
+ *
+ * These parameters are used to help the input layer discard out of
+ * range readings and reduce jitter etc.
+ *
+ * o min, max:- indicate the min and max values your touch screen returns
+ * o fuzz:- use a higher number to reduce jitter
+ *
+ * The default values correspond to Mainstone II in QVGA mode
+ *
+ * Please read
+ * Documentation/input/input-programming.txt for more details.
+ */
+
+static int abs_x[3] = {350, 3900, 5};
+module_param_array(abs_x, int, NULL, 0);
+MODULE_PARM_DESC(abs_x, "Touchscreen absolute X min, max, fuzz");
+
+static int abs_y[3] = {320, 3750, 40};
+module_param_array(abs_y, int, NULL, 0);
+MODULE_PARM_DESC(abs_y, "Touchscreen absolute Y min, max, fuzz");
+
+static int abs_p[3] = {0, 150, 4};
+module_param_array(abs_p, int, NULL, 0);
+MODULE_PARM_DESC(abs_p, "Touchscreen absolute Pressure min, max, fuzz");
+
+/*
+ * wm97xx IO access, all IO locking done by AC97 layer
+ */
+int wm97xx_reg_read(struct wm97xx *wm, u16 reg)
+{
+ if (wm->ac97)
+ return wm->ac97->bus->ops->read(wm->ac97, reg);
+ else
+ return -1;
+}
+EXPORT_SYMBOL_GPL(wm97xx_reg_read);
+
+void wm97xx_reg_write(struct wm97xx *wm, u16 reg, u16 val)
+{
+ /* cache digitiser registers */
+ if (reg >= AC97_WM9713_DIG1 && reg <= AC97_WM9713_DIG3)
+ wm->dig[(reg - AC97_WM9713_DIG1) >> 1] = val;
+
+ /* cache gpio regs */
+ if (reg >= AC97_GPIO_CFG && reg <= AC97_MISC_AFE)
+ wm->gpio[(reg - AC97_GPIO_CFG) >> 1] = val;
+
+ /* wm9713 irq reg */
+ if (reg == 0x5a)
+ wm->misc = val;
+
+ if (wm->ac97)
+ wm->ac97->bus->ops->write(wm->ac97, reg, val);
+}
+EXPORT_SYMBOL_GPL(wm97xx_reg_write);
+
+/**
+ * wm97xx_read_aux_adc - Read the aux adc.
+ * @wm: wm97xx device.
+ * @adcsel: codec ADC to be read
+ *
+ * Reads the selected AUX ADC.
+ */
+
+int wm97xx_read_aux_adc(struct wm97xx *wm, u16 adcsel)
+{
+ int power_adc = 0, auxval;
+ u16 power = 0;
+ int rc = 0;
+ int timeout = 0;
+
+ /* get codec */
+ mutex_lock(&wm->codec_mutex);
+
+ /* When the touchscreen is not in use, we may have to power up
+ * the AUX ADC before we can use sample the AUX inputs->
+ */
+ if (wm->id == WM9713_ID2 &&
+ (power = wm97xx_reg_read(wm, AC97_EXTENDED_MID)) & 0x8000) {
+ power_adc = 1;
+ wm97xx_reg_write(wm, AC97_EXTENDED_MID, power & 0x7fff);
+ }
+
+ /* Prepare the codec for AUX reading */
+ wm->codec->aux_prepare(wm);
+
+ /* Turn polling mode on to read AUX ADC */
+ wm->pen_probably_down = 1;
+
+ while (rc != RC_VALID && timeout++ < 5)
+ rc = wm->codec->poll_sample(wm, adcsel, &auxval);
+
+ if (power_adc)
+ wm97xx_reg_write(wm, AC97_EXTENDED_MID, power | 0x8000);
+
+ wm->codec->dig_restore(wm);
+
+ wm->pen_probably_down = 0;
+
+ if (timeout >= 5) {
+ dev_err(wm->dev,
+ "timeout reading auxadc %d, disabling digitiser\n",
+ adcsel);
+ wm->codec->dig_enable(wm, false);
+ }
+
+ mutex_unlock(&wm->codec_mutex);
+ return (rc == RC_VALID ? auxval & 0xfff : -EBUSY);
+}
+EXPORT_SYMBOL_GPL(wm97xx_read_aux_adc);
+
+/**
+ * wm97xx_get_gpio - Get the status of a codec GPIO.
+ * @wm: wm97xx device.
+ * @gpio: gpio
+ *
+ * Get the status of a codec GPIO pin
+ */
+
+enum wm97xx_gpio_status wm97xx_get_gpio(struct wm97xx *wm, u32 gpio)
+{
+ u16 status;
+ enum wm97xx_gpio_status ret;
+
+ mutex_lock(&wm->codec_mutex);
+ status = wm97xx_reg_read(wm, AC97_GPIO_STATUS);
+
+ if (status & gpio)
+ ret = WM97XX_GPIO_HIGH;
+ else
+ ret = WM97XX_GPIO_LOW;
+
+ mutex_unlock(&wm->codec_mutex);
+ return ret;
+}
+EXPORT_SYMBOL_GPL(wm97xx_get_gpio);
+
+/**
+ * wm97xx_set_gpio - Set the status of a codec GPIO.
+ * @wm: wm97xx device.
+ * @gpio: gpio
+ *
+ *
+ * Set the status of a codec GPIO pin
+ */
+
+void wm97xx_set_gpio(struct wm97xx *wm, u32 gpio,
+ enum wm97xx_gpio_status status)
+{
+ u16 reg;
+
+ mutex_lock(&wm->codec_mutex);
+ reg = wm97xx_reg_read(wm, AC97_GPIO_STATUS);
+
+ if (status == WM97XX_GPIO_HIGH)
+ reg |= gpio;
+ else
+ reg &= ~gpio;
+
+ if (wm->id == WM9712_ID2 && wm->variant != WM97xx_WM1613)
+ wm97xx_reg_write(wm, AC97_GPIO_STATUS, reg << 1);
+ else
+ wm97xx_reg_write(wm, AC97_GPIO_STATUS, reg);
+ mutex_unlock(&wm->codec_mutex);
+}
+EXPORT_SYMBOL_GPL(wm97xx_set_gpio);
+
+/*
+ * Codec GPIO pin configuration, this sets pin direction, polarity,
+ * stickyness and wake up.
+ */
+void wm97xx_config_gpio(struct wm97xx *wm, u32 gpio, enum wm97xx_gpio_dir dir,
+ enum wm97xx_gpio_pol pol, enum wm97xx_gpio_sticky sticky,
+ enum wm97xx_gpio_wake wake)
+{
+ u16 reg;
+
+ mutex_lock(&wm->codec_mutex);
+ reg = wm97xx_reg_read(wm, AC97_GPIO_POLARITY);
+
+ if (pol == WM97XX_GPIO_POL_HIGH)
+ reg |= gpio;
+ else
+ reg &= ~gpio;
+
+ wm97xx_reg_write(wm, AC97_GPIO_POLARITY, reg);
+ reg = wm97xx_reg_read(wm, AC97_GPIO_STICKY);
+
+ if (sticky == WM97XX_GPIO_STICKY)
+ reg |= gpio;
+ else
+ reg &= ~gpio;
+
+ wm97xx_reg_write(wm, AC97_GPIO_STICKY, reg);
+ reg = wm97xx_reg_read(wm, AC97_GPIO_WAKEUP);
+
+ if (wake == WM97XX_GPIO_WAKE)
+ reg |= gpio;
+ else
+ reg &= ~gpio;
+
+ wm97xx_reg_write(wm, AC97_GPIO_WAKEUP, reg);
+ reg = wm97xx_reg_read(wm, AC97_GPIO_CFG);
+
+ if (dir == WM97XX_GPIO_IN)
+ reg |= gpio;
+ else
+ reg &= ~gpio;
+
+ wm97xx_reg_write(wm, AC97_GPIO_CFG, reg);
+ mutex_unlock(&wm->codec_mutex);
+}
+EXPORT_SYMBOL_GPL(wm97xx_config_gpio);
+
+/*
+ * Configure the WM97XX_PRP value to use while system is suspended.
+ * If a value other than 0 is set then WM97xx pen detection will be
+ * left enabled in the configured mode while the system is in suspend,
+ * the device has users and suspend has not been disabled via the
+ * wakeup sysfs entries.
+ *
+ * @wm: WM97xx device to configure
+ * @mode: WM97XX_PRP value to configure while suspended
+ */
+void wm97xx_set_suspend_mode(struct wm97xx *wm, u16 mode)
+{
+ wm->suspend_mode = mode;
+ device_init_wakeup(&wm->input_dev->dev, mode != 0);
+}
+EXPORT_SYMBOL_GPL(wm97xx_set_suspend_mode);
+
+/*
+ * Handle a pen down interrupt.
+ */
+static void wm97xx_pen_irq_worker(struct work_struct *work)
+{
+ struct wm97xx *wm = container_of(work, struct wm97xx, pen_event_work);
+ int pen_was_down = wm->pen_is_down;
+
+ /* do we need to enable the touch panel reader */
+ if (wm->id == WM9705_ID2) {
+ if (wm97xx_reg_read(wm, AC97_WM97XX_DIGITISER_RD) &
+ WM97XX_PEN_DOWN)
+ wm->pen_is_down = 1;
+ else
+ wm->pen_is_down = 0;
+ } else {
+ u16 status, pol;
+ mutex_lock(&wm->codec_mutex);
+ status = wm97xx_reg_read(wm, AC97_GPIO_STATUS);
+ pol = wm97xx_reg_read(wm, AC97_GPIO_POLARITY);
+
+ if (WM97XX_GPIO_13 & pol & status) {
+ wm->pen_is_down = 1;
+ wm97xx_reg_write(wm, AC97_GPIO_POLARITY, pol &
+ ~WM97XX_GPIO_13);
+ } else {
+ wm->pen_is_down = 0;
+ wm97xx_reg_write(wm, AC97_GPIO_POLARITY, pol |
+ WM97XX_GPIO_13);
+ }
+
+ if (wm->id == WM9712_ID2 && wm->variant != WM97xx_WM1613)
+ wm97xx_reg_write(wm, AC97_GPIO_STATUS, (status &
+ ~WM97XX_GPIO_13) << 1);
+ else
+ wm97xx_reg_write(wm, AC97_GPIO_STATUS, status &
+ ~WM97XX_GPIO_13);
+ mutex_unlock(&wm->codec_mutex);
+ }
+
+ /* If the system is not using continuous mode or it provides a
+ * pen down operation then we need to schedule polls while the
+ * pen is down. Otherwise the machine driver is responsible
+ * for scheduling reads.
+ */
+ if (!wm->mach_ops->acc_enabled || wm->mach_ops->acc_pen_down) {
+ if (wm->pen_is_down && !pen_was_down) {
+ /* Data is not available immediately on pen down */
+ queue_delayed_work(wm->ts_workq, &wm->ts_reader, 1);
+ }
+
+ /* Let ts_reader report the pen up for debounce. */
+ if (!wm->pen_is_down && pen_was_down)
+ wm->pen_is_down = 1;
+ }
+
+ if (!wm->pen_is_down && wm->mach_ops->acc_enabled)
+ wm->mach_ops->acc_pen_up(wm);
+
+ wm->mach_ops->irq_enable(wm, 1);
+}
+
+/*
+ * Codec PENDOWN irq handler
+ *
+ * We have to disable the codec interrupt in the handler because it
+ * can take up to 1ms to clear the interrupt source. We schedule a task
+ * in a work queue to do the actual interaction with the chip. The
+ * interrupt is then enabled again in the slow handler when the source
+ * has been cleared.
+ */
+static irqreturn_t wm97xx_pen_interrupt(int irq, void *dev_id)
+{
+ struct wm97xx *wm = dev_id;
+
+ if (!work_pending(&wm->pen_event_work)) {
+ wm->mach_ops->irq_enable(wm, 0);
+ queue_work(wm->ts_workq, &wm->pen_event_work);
+ }
+
+ return IRQ_HANDLED;
+}
+
+/*
+ * initialise pen IRQ handler and workqueue
+ */
+static int wm97xx_init_pen_irq(struct wm97xx *wm)
+{
+ u16 reg;
+
+ /* If an interrupt is supplied an IRQ enable operation must also be
+ * provided. */
+ BUG_ON(!wm->mach_ops->irq_enable);
+
+ if (request_irq(wm->pen_irq, wm97xx_pen_interrupt, IRQF_SHARED,
+ "wm97xx-pen", wm)) {
+ dev_err(wm->dev,
+ "Failed to register pen down interrupt, polling");
+ wm->pen_irq = 0;
+ return -EINVAL;
+ }
+
+ /* Configure GPIO as interrupt source on WM971x */
+ if (wm->id != WM9705_ID2) {
+ BUG_ON(!wm->mach_ops->irq_gpio);
+ reg = wm97xx_reg_read(wm, AC97_MISC_AFE);
+ wm97xx_reg_write(wm, AC97_MISC_AFE,
+ reg & ~(wm->mach_ops->irq_gpio));
+ reg = wm97xx_reg_read(wm, 0x5a);
+ wm97xx_reg_write(wm, 0x5a, reg & ~0x0001);
+ }
+
+ return 0;
+}
+
+static int wm97xx_read_samples(struct wm97xx *wm)
+{
+ struct wm97xx_data data;
+ int rc;
+
+ mutex_lock(&wm->codec_mutex);
+
+ if (wm->mach_ops && wm->mach_ops->acc_enabled)
+ rc = wm->mach_ops->acc_pen_down(wm);
+ else
+ rc = wm->codec->poll_touch(wm, &data);
+
+ if (rc & RC_PENUP) {
+ if (wm->pen_is_down) {
+ wm->pen_is_down = 0;
+ dev_dbg(wm->dev, "pen up\n");
+ input_report_abs(wm->input_dev, ABS_PRESSURE, 0);
+ input_report_key(wm->input_dev, BTN_TOUCH, 0);
+ input_sync(wm->input_dev);
+ } else if (!(rc & RC_AGAIN)) {
+ /* We need high frequency updates only while
+ * pen is down, the user never will be able to
+ * touch screen faster than a few times per
+ * second... On the other hand, when the user
+ * is actively working with the touchscreen we
+ * don't want to lose the quick response. So we
+ * will slowly increase sleep time after the
+ * pen is up and quicky restore it to ~one task
+ * switch when pen is down again.
+ */
+ if (wm->ts_reader_interval < HZ / 10)
+ wm->ts_reader_interval++;
+ }
+
+ } else if (rc & RC_VALID) {
+ dev_dbg(wm->dev,
+ "pen down: x=%x:%d, y=%x:%d, pressure=%x:%d\n",
+ data.x >> 12, data.x & 0xfff, data.y >> 12,
+ data.y & 0xfff, data.p >> 12, data.p & 0xfff);
+ input_report_abs(wm->input_dev, ABS_X, data.x & 0xfff);
+ input_report_abs(wm->input_dev, ABS_Y, data.y & 0xfff);
+ input_report_abs(wm->input_dev, ABS_PRESSURE, data.p & 0xfff);
+ input_report_key(wm->input_dev, BTN_TOUCH, 1);
+ input_sync(wm->input_dev);
+ wm->pen_is_down = 1;
+ wm->ts_reader_interval = wm->ts_reader_min_interval;
+ } else if (rc & RC_PENDOWN) {
+ dev_dbg(wm->dev, "pen down\n");
+ wm->pen_is_down = 1;
+ wm->ts_reader_interval = wm->ts_reader_min_interval;
+ }
+
+ mutex_unlock(&wm->codec_mutex);
+ return rc;
+}
+
+/*
+* The touchscreen sample reader.
+*/
+static void wm97xx_ts_reader(struct work_struct *work)
+{
+ int rc;
+ struct wm97xx *wm = container_of(work, struct wm97xx, ts_reader.work);
+
+ BUG_ON(!wm->codec);
+
+ do {
+ rc = wm97xx_read_samples(wm);
+ } while (rc & RC_AGAIN);
+
+ if (wm->pen_is_down || !wm->pen_irq)
+ queue_delayed_work(wm->ts_workq, &wm->ts_reader,
+ wm->ts_reader_interval);
+}
+
+/**
+ * wm97xx_ts_input_open - Open the touch screen input device.
+ * @idev: Input device to be opened.
+ *
+ * Called by the input sub system to open a wm97xx touchscreen device.
+ * Starts the touchscreen thread and touch digitiser.
+ */
+static int wm97xx_ts_input_open(struct input_dev *idev)
+{
+ struct wm97xx *wm = input_get_drvdata(idev);
+
+ wm->ts_workq = create_singlethread_workqueue("kwm97xx");
+ if (wm->ts_workq == NULL) {
+ dev_err(wm->dev,
+ "Failed to create workqueue\n");
+ return -EINVAL;
+ }
+
+ /* start digitiser */
+ if (wm->mach_ops && wm->mach_ops->acc_enabled)
+ wm->codec->acc_enable(wm, 1);
+ wm->codec->dig_enable(wm, 1);
+
+ INIT_DELAYED_WORK(&wm->ts_reader, wm97xx_ts_reader);
+ INIT_WORK(&wm->pen_event_work, wm97xx_pen_irq_worker);
+
+ wm->ts_reader_min_interval = HZ >= 100 ? HZ / 100 : 1;
+ if (wm->ts_reader_min_interval < 1)
+ wm->ts_reader_min_interval = 1;
+ wm->ts_reader_interval = wm->ts_reader_min_interval;
+
+ wm->pen_is_down = 0;
+ if (wm->pen_irq)
+ wm97xx_init_pen_irq(wm);
+ else
+ dev_err(wm->dev, "No IRQ specified\n");
+
+ /* If we either don't have an interrupt for pen down events or
+ * failed to acquire it then we need to poll.
+ */
+ if (wm->pen_irq == 0)
+ queue_delayed_work(wm->ts_workq, &wm->ts_reader,
+ wm->ts_reader_interval);
+
+ return 0;
+}
+
+/**
+ * wm97xx_ts_input_close - Close the touch screen input device.
+ * @idev: Input device to be closed.
+ *
+ * Called by the input sub system to close a wm97xx touchscreen
+ * device. Kills the touchscreen thread and stops the touch
+ * digitiser.
+ */
+
+static void wm97xx_ts_input_close(struct input_dev *idev)
+{
+ struct wm97xx *wm = input_get_drvdata(idev);
+ u16 reg;
+
+ if (wm->pen_irq) {
+ /* Return the interrupt to GPIO usage (disabling it) */
+ if (wm->id != WM9705_ID2) {
+ BUG_ON(!wm->mach_ops->irq_gpio);
+ reg = wm97xx_reg_read(wm, AC97_MISC_AFE);
+ wm97xx_reg_write(wm, AC97_MISC_AFE,
+ reg | wm->mach_ops->irq_gpio);
+ }
+
+ free_irq(wm->pen_irq, wm);
+ }
+
+ wm->pen_is_down = 0;
+
+ /* Balance out interrupt disables/enables */
+ if (cancel_work_sync(&wm->pen_event_work))
+ wm->mach_ops->irq_enable(wm, 1);
+
+ /* ts_reader rearms itself so we need to explicitly stop it
+ * before we destroy the workqueue.
+ */
+ cancel_delayed_work_sync(&wm->ts_reader);
+
+ destroy_workqueue(wm->ts_workq);
+
+ /* stop digitiser */
+ wm->codec->dig_enable(wm, 0);
+ if (wm->mach_ops && wm->mach_ops->acc_enabled)
+ wm->codec->acc_enable(wm, 0);
+}
+
+static int wm97xx_probe(struct device *dev)
+{
+ struct wm97xx *wm;
+ struct wm97xx_pdata *pdata = dev->platform_data;
+ int ret = 0, id = 0;
+
+ wm = kzalloc(sizeof(struct wm97xx), GFP_KERNEL);
+ if (!wm)
+ return -ENOMEM;
+ mutex_init(&wm->codec_mutex);
+
+ wm->dev = dev;
+ dev_set_drvdata(dev, wm);
+ wm->ac97 = to_ac97_t(dev);
+
+ /* check that we have a supported codec */
+ id = wm97xx_reg_read(wm, AC97_VENDOR_ID1);
+ if (id != WM97XX_ID1) {
+ dev_err(dev, "Device with vendor %04x is not a wm97xx\n", id);
+ ret = -ENODEV;
+ goto alloc_err;
+ }
+
+ wm->id = wm97xx_reg_read(wm, AC97_VENDOR_ID2);
+
+ wm->variant = WM97xx_GENERIC;
+
+ dev_info(wm->dev, "detected a wm97%02x codec\n", wm->id & 0xff);
+
+ switch (wm->id & 0xff) {
+#ifdef CONFIG_TOUCHSCREEN_WM9705
+ case 0x05:
+ wm->codec = &wm9705_codec;
+ break;
+#endif
+#ifdef CONFIG_TOUCHSCREEN_WM9712
+ case 0x12:
+ wm->codec = &wm9712_codec;
+ break;
+#endif
+#ifdef CONFIG_TOUCHSCREEN_WM9713
+ case 0x13:
+ wm->codec = &wm9713_codec;
+ break;
+#endif
+ default:
+ dev_err(wm->dev, "Support for wm97%02x not compiled in.\n",
+ wm->id & 0xff);
+ ret = -ENODEV;
+ goto alloc_err;
+ }
+
+ /* set up physical characteristics */
+ wm->codec->phy_init(wm);
+
+ /* load gpio cache */
+ wm->gpio[0] = wm97xx_reg_read(wm, AC97_GPIO_CFG);
+ wm->gpio[1] = wm97xx_reg_read(wm, AC97_GPIO_POLARITY);
+ wm->gpio[2] = wm97xx_reg_read(wm, AC97_GPIO_STICKY);
+ wm->gpio[3] = wm97xx_reg_read(wm, AC97_GPIO_WAKEUP);
+ wm->gpio[4] = wm97xx_reg_read(wm, AC97_GPIO_STATUS);
+ wm->gpio[5] = wm97xx_reg_read(wm, AC97_MISC_AFE);
+
+ wm->input_dev = input_allocate_device();
+ if (wm->input_dev == NULL) {
+ ret = -ENOMEM;
+ goto alloc_err;
+ }
+
+ /* set up touch configuration */
+ wm->input_dev->name = "wm97xx touchscreen";
+ wm->input_dev->phys = "wm97xx";
+ wm->input_dev->open = wm97xx_ts_input_open;
+ wm->input_dev->close = wm97xx_ts_input_close;
+
+ __set_bit(EV_ABS, wm->input_dev->evbit);
+ __set_bit(EV_KEY, wm->input_dev->evbit);
+ __set_bit(BTN_TOUCH, wm->input_dev->keybit);
+
+ input_set_abs_params(wm->input_dev, ABS_X, abs_x[0], abs_x[1],
+ abs_x[2], 0);
+ input_set_abs_params(wm->input_dev, ABS_Y, abs_y[0], abs_y[1],
+ abs_y[2], 0);
+ input_set_abs_params(wm->input_dev, ABS_PRESSURE, abs_p[0], abs_p[1],
+ abs_p[2], 0);
+
+ input_set_drvdata(wm->input_dev, wm);
+ wm->input_dev->dev.parent = dev;
+
+ ret = input_register_device(wm->input_dev);
+ if (ret < 0)
+ goto dev_alloc_err;
+
+ /* register our battery device */
+ wm->battery_dev = platform_device_alloc("wm97xx-battery", -1);
+ if (!wm->battery_dev) {
+ ret = -ENOMEM;
+ goto batt_err;
+ }
+ platform_set_drvdata(wm->battery_dev, wm);
+ wm->battery_dev->dev.parent = dev;
+ wm->battery_dev->dev.platform_data = pdata;
+ ret = platform_device_add(wm->battery_dev);
+ if (ret < 0)
+ goto batt_reg_err;
+
+ /* register our extended touch device (for machine specific
+ * extensions) */
+ wm->touch_dev = platform_device_alloc("wm97xx-touch", -1);
+ if (!wm->touch_dev) {
+ ret = -ENOMEM;
+ goto touch_err;
+ }
+ platform_set_drvdata(wm->touch_dev, wm);
+ wm->touch_dev->dev.parent = dev;
+ wm->touch_dev->dev.platform_data = pdata;
+ ret = platform_device_add(wm->touch_dev);
+ if (ret < 0)
+ goto touch_reg_err;
+
+ return ret;
+
+ touch_reg_err:
+ platform_device_put(wm->touch_dev);
+ touch_err:
+ platform_device_del(wm->battery_dev);
+ batt_reg_err:
+ platform_device_put(wm->battery_dev);
+ batt_err:
+ input_unregister_device(wm->input_dev);
+ wm->input_dev = NULL;
+ dev_alloc_err:
+ input_free_device(wm->input_dev);
+ alloc_err:
+ kfree(wm);
+
+ return ret;
+}
+
+static int wm97xx_remove(struct device *dev)
+{
+ struct wm97xx *wm = dev_get_drvdata(dev);
+
+ platform_device_unregister(wm->battery_dev);
+ platform_device_unregister(wm->touch_dev);
+ input_unregister_device(wm->input_dev);
+ kfree(wm);
+
+ return 0;
+}
+
+#ifdef CONFIG_PM
+static int wm97xx_suspend(struct device *dev, pm_message_t state)
+{
+ struct wm97xx *wm = dev_get_drvdata(dev);
+ u16 reg;
+ int suspend_mode;
+
+ if (device_may_wakeup(&wm->input_dev->dev))
+ suspend_mode = wm->suspend_mode;
+ else
+ suspend_mode = 0;
+
+ if (wm->input_dev->users)
+ cancel_delayed_work_sync(&wm->ts_reader);
+
+ /* Power down the digitiser (bypassing the cache for resume) */
+ reg = wm97xx_reg_read(wm, AC97_WM97XX_DIGITISER2);
+ reg &= ~WM97XX_PRP_DET_DIG;
+ if (wm->input_dev->users)
+ reg |= suspend_mode;
+ wm->ac97->bus->ops->write(wm->ac97, AC97_WM97XX_DIGITISER2, reg);
+
+ /* WM9713 has an additional power bit - turn it off if there
+ * are no users or if suspend mode is zero. */
+ if (wm->id == WM9713_ID2 &&
+ (!wm->input_dev->users || !suspend_mode)) {
+ reg = wm97xx_reg_read(wm, AC97_EXTENDED_MID) | 0x8000;
+ wm97xx_reg_write(wm, AC97_EXTENDED_MID, reg);
+ }
+
+ return 0;
+}
+
+static int wm97xx_resume(struct device *dev)
+{
+ struct wm97xx *wm = dev_get_drvdata(dev);
+
+ /* restore digitiser and gpios */
+ if (wm->id == WM9713_ID2) {
+ wm97xx_reg_write(wm, AC97_WM9713_DIG1, wm->dig[0]);
+ wm97xx_reg_write(wm, 0x5a, wm->misc);
+ if (wm->input_dev->users) {
+ u16 reg;
+ reg = wm97xx_reg_read(wm, AC97_EXTENDED_MID) & 0x7fff;
+ wm97xx_reg_write(wm, AC97_EXTENDED_MID, reg);
+ }
+ }
+
+ wm97xx_reg_write(wm, AC97_WM9713_DIG2, wm->dig[1]);
+ wm97xx_reg_write(wm, AC97_WM9713_DIG3, wm->dig[2]);
+
+ wm97xx_reg_write(wm, AC97_GPIO_CFG, wm->gpio[0]);
+ wm97xx_reg_write(wm, AC97_GPIO_POLARITY, wm->gpio[1]);
+ wm97xx_reg_write(wm, AC97_GPIO_STICKY, wm->gpio[2]);
+ wm97xx_reg_write(wm, AC97_GPIO_WAKEUP, wm->gpio[3]);
+ wm97xx_reg_write(wm, AC97_GPIO_STATUS, wm->gpio[4]);
+ wm97xx_reg_write(wm, AC97_MISC_AFE, wm->gpio[5]);
+
+ if (wm->input_dev->users && !wm->pen_irq) {
+ wm->ts_reader_interval = wm->ts_reader_min_interval;
+ queue_delayed_work(wm->ts_workq, &wm->ts_reader,
+ wm->ts_reader_interval);
+ }
+
+ return 0;
+}
+
+#else
+#define wm97xx_suspend NULL
+#define wm97xx_resume NULL
+#endif
+
+/*
+ * Machine specific operations
+ */
+int wm97xx_register_mach_ops(struct wm97xx *wm,
+ struct wm97xx_mach_ops *mach_ops)
+{
+ mutex_lock(&wm->codec_mutex);
+ if (wm->mach_ops) {
+ mutex_unlock(&wm->codec_mutex);
+ return -EINVAL;
+ }
+ wm->mach_ops = mach_ops;
+ mutex_unlock(&wm->codec_mutex);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(wm97xx_register_mach_ops);
+
+void wm97xx_unregister_mach_ops(struct wm97xx *wm)
+{
+ mutex_lock(&wm->codec_mutex);
+ wm->mach_ops = NULL;
+ mutex_unlock(&wm->codec_mutex);
+}
+EXPORT_SYMBOL_GPL(wm97xx_unregister_mach_ops);
+
+static struct device_driver wm97xx_driver = {
+ .name = "wm97xx-ts",
+ .bus = &ac97_bus_type,
+ .owner = THIS_MODULE,
+ .probe = wm97xx_probe,
+ .remove = wm97xx_remove,
+ .suspend = wm97xx_suspend,
+ .resume = wm97xx_resume,
+};
+
+static int __init wm97xx_init(void)
+{
+ return driver_register(&wm97xx_driver);
+}
+
+static void __exit wm97xx_exit(void)
+{
+ driver_unregister(&wm97xx_driver);
+}
+
+module_init(wm97xx_init);
+module_exit(wm97xx_exit);
+
+/* Module information */
+MODULE_AUTHOR("Liam Girdwood <lrg@slimlogic.co.uk>");
+MODULE_DESCRIPTION("WM97xx Core - Touch Screen / AUX ADC / GPIO Driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/input/touchscreen/zylonite-wm97xx.c b/drivers/input/touchscreen/zylonite-wm97xx.c
new file mode 100644
index 0000000..f6328c0
--- /dev/null
+++ b/drivers/input/touchscreen/zylonite-wm97xx.c
@@ -0,0 +1,243 @@
+/*
+ * zylonite-wm97xx.c -- Zylonite Continuous Touch screen driver
+ *
+ * Copyright 2004, 2007, 2008 Wolfson Microelectronics PLC.
+ * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
+ * Parts Copyright : Ian Molton <spyro@f2s.com>
+ * Andrew Zabolotny <zap@homelink.ru>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * Notes:
+ * This is a wm97xx extended touch driver supporting interrupt driven
+ * and continuous operation on Marvell Zylonite development systems
+ * (which have a WM9713 on board).
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/irq.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/wm97xx.h>
+
+#include <mach/hardware.h>
+#include <mach/mfp.h>
+#include <mach/regs-ac97.h>
+
+struct continuous {
+ u16 id; /* codec id */
+ u8 code; /* continuous code */
+ u8 reads; /* number of coord reads per read cycle */
+ u32 speed; /* number of coords per second */
+};
+
+#define WM_READS(sp) ((sp / HZ) + 1)
+
+static const struct continuous cinfo[] = {
+ { WM9713_ID2, 0, WM_READS(94), 94 },
+ { WM9713_ID2, 1, WM_READS(120), 120 },
+ { WM9713_ID2, 2, WM_READS(154), 154 },
+ { WM9713_ID2, 3, WM_READS(188), 188 },
+};
+
+/* continuous speed index */
+static int sp_idx;
+
+/*
+ * Pen sampling frequency (Hz) in continuous mode.
+ */
+static int cont_rate = 200;
+module_param(cont_rate, int, 0);
+MODULE_PARM_DESC(cont_rate, "Sampling rate in continuous mode (Hz)");
+
+/*
+ * Pressure readback.
+ *
+ * Set to 1 to read back pen down pressure
+ */
+static int pressure;
+module_param(pressure, int, 0);
+MODULE_PARM_DESC(pressure, "Pressure readback (1 = pressure, 0 = no pressure)");
+
+/*
+ * AC97 touch data slot.
+ *
+ * Touch screen readback data ac97 slot
+ */
+static int ac97_touch_slot = 5;
+module_param(ac97_touch_slot, int, 0);
+MODULE_PARM_DESC(ac97_touch_slot, "Touch screen data slot AC97 number");
+
+
+/* flush AC97 slot 5 FIFO machines */
+static void wm97xx_acc_pen_up(struct wm97xx *wm)
+{
+ int i;
+
+ msleep(1);
+
+ for (i = 0; i < 16; i++)
+ MODR;
+}
+
+static int wm97xx_acc_pen_down(struct wm97xx *wm)
+{
+ u16 x, y, p = 0x100 | WM97XX_ADCSEL_PRES;
+ int reads = 0;
+ static u16 last, tries;
+
+ /* When the AC97 queue has been drained we need to allow time
+ * to buffer up samples otherwise we end up spinning polling
+ * for samples. The controller can't have a suitably low
+ * threshold set to use the notifications it gives.
+ */
+ msleep(1);
+
+ if (tries > 5) {
+ tries = 0;
+ return RC_PENUP;
+ }
+
+ x = MODR;
+ if (x == last) {
+ tries++;
+ return RC_AGAIN;
+ }
+ last = x;
+ do {
+ if (reads)
+ x = MODR;
+ y = MODR;
+ if (pressure)
+ p = MODR;
+
+ dev_dbg(wm->dev, "Raw coordinates: x=%x, y=%x, p=%x\n",
+ x, y, p);
+
+ /* are samples valid */
+ if ((x & WM97XX_ADCSEL_MASK) != WM97XX_ADCSEL_X ||
+ (y & WM97XX_ADCSEL_MASK) != WM97XX_ADCSEL_Y ||
+ (p & WM97XX_ADCSEL_MASK) != WM97XX_ADCSEL_PRES)
+ goto up;
+
+ /* coordinate is good */
+ tries = 0;
+ input_report_abs(wm->input_dev, ABS_X, x & 0xfff);
+ input_report_abs(wm->input_dev, ABS_Y, y & 0xfff);
+ input_report_abs(wm->input_dev, ABS_PRESSURE, p & 0xfff);
+ input_report_key(wm->input_dev, BTN_TOUCH, (p != 0));
+ input_sync(wm->input_dev);
+ reads++;
+ } while (reads < cinfo[sp_idx].reads);
+up:
+ return RC_PENDOWN | RC_AGAIN;
+}
+
+static int wm97xx_acc_startup(struct wm97xx *wm)
+{
+ int idx;
+
+ /* check we have a codec */
+ if (wm->ac97 == NULL)
+ return -ENODEV;
+
+ /* Go you big red fire engine */
+ for (idx = 0; idx < ARRAY_SIZE(cinfo); idx++) {
+ if (wm->id != cinfo[idx].id)
+ continue;
+ sp_idx = idx;
+ if (cont_rate <= cinfo[idx].speed)
+ break;
+ }
+ wm->acc_rate = cinfo[sp_idx].code;
+ wm->acc_slot = ac97_touch_slot;
+ dev_info(wm->dev,
+ "zylonite accelerated touchscreen driver, %d samples/sec\n",
+ cinfo[sp_idx].speed);
+
+ return 0;
+}
+
+static void wm97xx_irq_enable(struct wm97xx *wm, int enable)
+{
+ if (enable)
+ enable_irq(wm->pen_irq);
+ else
+ disable_irq_nosync(wm->pen_irq);
+}
+
+static struct wm97xx_mach_ops zylonite_mach_ops = {
+ .acc_enabled = 1,
+ .acc_pen_up = wm97xx_acc_pen_up,
+ .acc_pen_down = wm97xx_acc_pen_down,
+ .acc_startup = wm97xx_acc_startup,
+ .irq_enable = wm97xx_irq_enable,
+ .irq_gpio = WM97XX_GPIO_2,
+};
+
+static int zylonite_wm97xx_probe(struct platform_device *pdev)
+{
+ struct wm97xx *wm = platform_get_drvdata(pdev);
+ int gpio_touch_irq;
+
+ if (cpu_is_pxa320())
+ gpio_touch_irq = mfp_to_gpio(MFP_PIN_GPIO15);
+ else
+ gpio_touch_irq = mfp_to_gpio(MFP_PIN_GPIO26);
+
+ wm->pen_irq = IRQ_GPIO(gpio_touch_irq);
+ irq_set_irq_type(IRQ_GPIO(gpio_touch_irq), IRQ_TYPE_EDGE_BOTH);
+
+ wm97xx_config_gpio(wm, WM97XX_GPIO_13, WM97XX_GPIO_IN,
+ WM97XX_GPIO_POL_HIGH,
+ WM97XX_GPIO_STICKY,
+ WM97XX_GPIO_WAKE);
+ wm97xx_config_gpio(wm, WM97XX_GPIO_2, WM97XX_GPIO_OUT,
+ WM97XX_GPIO_POL_HIGH,
+ WM97XX_GPIO_NOTSTICKY,
+ WM97XX_GPIO_NOWAKE);
+
+ return wm97xx_register_mach_ops(wm, &zylonite_mach_ops);
+}
+
+static int zylonite_wm97xx_remove(struct platform_device *pdev)
+{
+ struct wm97xx *wm = platform_get_drvdata(pdev);
+
+ wm97xx_unregister_mach_ops(wm);
+
+ return 0;
+}
+
+static struct platform_driver zylonite_wm97xx_driver = {
+ .probe = zylonite_wm97xx_probe,
+ .remove = zylonite_wm97xx_remove,
+ .driver = {
+ .name = "wm97xx-touch",
+ },
+};
+
+static int __init zylonite_wm97xx_init(void)
+{
+ return platform_driver_register(&zylonite_wm97xx_driver);
+}
+
+static void __exit zylonite_wm97xx_exit(void)
+{
+ platform_driver_unregister(&zylonite_wm97xx_driver);
+}
+
+module_init(zylonite_wm97xx_init);
+module_exit(zylonite_wm97xx_exit);
+
+/* Module information */
+MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
+MODULE_DESCRIPTION("wm97xx continuous touch driver for Zylonite");
+MODULE_LICENSE("GPL");
