| /* |
| * Line6 Linux USB driver - 0.8.0 |
| * |
| * Copyright (C) 2004-2009 Markus Grabner (grabner@icg.tugraz.at) |
| * |
| * 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. |
| * |
| */ |
| |
| #include "driver.h" |
| |
| #include <linux/kernel.h> |
| #include <linux/module.h> |
| #include <linux/slab.h> |
| #include <linux/usb.h> |
| |
| #include "audio.h" |
| #include "capture.h" |
| #include "control.h" |
| #include "midi.h" |
| #include "playback.h" |
| #include "pod.h" |
| #include "revision.h" |
| #include "toneport.h" |
| #include "usbdefs.h" |
| #include "variax.h" |
| |
| |
| #define DRIVER_AUTHOR "Markus Grabner <grabner@icg.tugraz.at>" |
| #define DRIVER_DESC "Line6 USB Driver" |
| #define DRIVER_VERSION "0.8.0" |
| |
| |
| /* table of devices that work with this driver */ |
| static const struct usb_device_id line6_id_table[] = { |
| { USB_DEVICE(LINE6_VENDOR_ID, LINE6_DEVID_BASSPODXT) }, |
| { USB_DEVICE(LINE6_VENDOR_ID, LINE6_DEVID_BASSPODXTLIVE) }, |
| { USB_DEVICE(LINE6_VENDOR_ID, LINE6_DEVID_BASSPODXTPRO) }, |
| { USB_DEVICE(LINE6_VENDOR_ID, LINE6_DEVID_GUITARPORT) }, |
| { USB_DEVICE(LINE6_VENDOR_ID, LINE6_DEVID_POCKETPOD) }, |
| { USB_DEVICE(LINE6_VENDOR_ID, LINE6_DEVID_PODX3) }, |
| { USB_DEVICE(LINE6_VENDOR_ID, LINE6_DEVID_PODX3LIVE) }, |
| { USB_DEVICE(LINE6_VENDOR_ID, LINE6_DEVID_PODXT) }, |
| { USB_DEVICE(LINE6_VENDOR_ID, LINE6_DEVID_PODXTLIVE) }, |
| { USB_DEVICE(LINE6_VENDOR_ID, LINE6_DEVID_PODXTPRO) }, |
| { USB_DEVICE(LINE6_VENDOR_ID, LINE6_DEVID_TONEPORT_GX) }, |
| { USB_DEVICE(LINE6_VENDOR_ID, LINE6_DEVID_TONEPORT_UX1) }, |
| { USB_DEVICE(LINE6_VENDOR_ID, LINE6_DEVID_TONEPORT_UX2) }, |
| { USB_DEVICE(LINE6_VENDOR_ID, LINE6_DEVID_VARIAX) }, |
| { }, |
| }; |
| MODULE_DEVICE_TABLE(usb, line6_id_table); |
| |
| static struct line6_properties line6_properties_table[] = { |
| { "BassPODxt", LINE6_BIT_BASSPODXT, LINE6_BIT_CONTROL_PCM }, |
| { "BassPODxt Live", LINE6_BIT_BASSPODXTLIVE, LINE6_BIT_CONTROL_PCM }, |
| { "BassPODxt Pro", LINE6_BIT_BASSPODXTPRO, LINE6_BIT_CONTROL_PCM }, |
| { "GuitarPort", LINE6_BIT_GUITARPORT, LINE6_BIT_PCM }, |
| { "Pocket POD", LINE6_BIT_POCKETPOD, LINE6_BIT_CONTROL_PCM }, |
| { "POD X3", LINE6_BIT_PODX3, LINE6_BIT_PCM }, |
| { "POD X3 Live", LINE6_BIT_PODX3LIVE, LINE6_BIT_PCM }, |
| { "PODxt", LINE6_BIT_PODXT, LINE6_BIT_CONTROL_PCM }, |
| { "PODxt Live", LINE6_BIT_PODXTLIVE, LINE6_BIT_CONTROL_PCM }, |
| { "PODxt Pro", LINE6_BIT_PODXTPRO, LINE6_BIT_CONTROL_PCM }, |
| { "TonePort GX", LINE6_BIT_TONEPORT_GX, LINE6_BIT_PCM }, |
| { "TonePort UX1", LINE6_BIT_TONEPORT_UX1, LINE6_BIT_PCM }, |
| { "TonePort UX2", LINE6_BIT_TONEPORT_UX2, LINE6_BIT_PCM }, |
| { "Variax Workbench", LINE6_BIT_VARIAX, LINE6_BIT_CONTROL } |
| }; |
| |
| |
| /* |
| This is Line6's MIDI manufacturer ID. |
| */ |
| const unsigned char line6_midi_id[] = { 0x00, 0x01, 0x0c }; |
| |
| struct usb_line6 *line6_devices[LINE6_MAX_DEVICES]; |
| struct workqueue_struct *line6_workqueue; |
| |
| |
| /** |
| Class for asynchronous messages. |
| */ |
| struct message { |
| struct usb_line6 *line6; |
| const char *buffer; |
| int size; |
| int done; |
| }; |
| |
| |
| /* |
| Forward declarations. |
| */ |
| static void line6_data_received(struct urb *urb); |
| static int line6_send_raw_message_async_part(struct message *msg, |
| struct urb *urb); |
| |
| |
| /* |
| Start to listen on endpoint. |
| */ |
| static int line6_start_listen(struct usb_line6 *line6) |
| { |
| usb_fill_int_urb(line6->urb_listen, line6->usbdev, |
| usb_rcvintpipe(line6->usbdev, line6->ep_control_read), |
| line6->buffer_listen, LINE6_BUFSIZE_LISTEN, |
| line6_data_received, line6, line6->interval); |
| line6->urb_listen->actual_length = 0; |
| return usb_submit_urb(line6->urb_listen, GFP_KERNEL); |
| } |
| |
| #if DO_DUMP_ANY |
| /* |
| Write hexdump to syslog. |
| */ |
| void line6_write_hexdump(struct usb_line6 *line6, char dir, |
| const unsigned char *buffer, int size) |
| { |
| static const int BYTES_PER_LINE = 8; |
| char hexdump[100]; |
| char asc[BYTES_PER_LINE + 1]; |
| int i, j; |
| |
| for (i = 0; i < size; i += BYTES_PER_LINE) { |
| int hexdumpsize = sizeof(hexdump); |
| char *p = hexdump; |
| int n = min(size - i, BYTES_PER_LINE); |
| asc[n] = 0; |
| |
| for (j = 0; j < BYTES_PER_LINE; ++j) { |
| int bytes; |
| |
| if (j < n) { |
| unsigned char val = buffer[i + j]; |
| bytes = snprintf(p, hexdumpsize, " %02X", val); |
| asc[j] = ((val >= 0x20) && (val < 0x7f)) ? val : '.'; |
| } else |
| bytes = snprintf(p, hexdumpsize, " "); |
| |
| if (bytes > hexdumpsize) |
| break; /* buffer overflow */ |
| |
| p += bytes; |
| hexdumpsize -= bytes; |
| } |
| |
| dev_info(line6->ifcdev, "%c%04X:%s %s\n", dir, i, hexdump, asc); |
| } |
| } |
| #endif |
| |
| #if DO_DUMP_URB_RECEIVE |
| /* |
| Dump URB data to syslog. |
| */ |
| static void line6_dump_urb(struct urb *urb) |
| { |
| struct usb_line6 *line6 = (struct usb_line6 *)urb->context; |
| |
| if (urb->status < 0) |
| return; |
| |
| line6_write_hexdump(line6, 'R', (unsigned char *)urb->transfer_buffer, |
| urb->actual_length); |
| } |
| #endif |
| |
| /* |
| Send raw message in pieces of max_packet_size bytes. |
| */ |
| int line6_send_raw_message(struct usb_line6 *line6, const char *buffer, |
| int size) |
| { |
| int i, done = 0; |
| int actual_size; |
| |
| #if DO_DUMP_URB_SEND |
| line6_write_hexdump(line6, 'S', buffer, size); |
| #endif |
| |
| for (i = 0; i < size; i += actual_size) { |
| const char *frag_buf = buffer + i; |
| int frag_size = min(line6->max_packet_size, size - i); |
| int retval; |
| |
| retval = usb_interrupt_msg(line6->usbdev, |
| usb_sndintpipe(line6->usbdev, |
| line6->ep_control_write), |
| (char *)frag_buf, frag_size, |
| &actual_size, LINE6_TIMEOUT * HZ); |
| |
| if (retval) { |
| dev_err(line6->ifcdev, |
| "usb_interrupt_msg failed (%d)\n", retval); |
| break; |
| } |
| |
| done += actual_size; |
| } |
| |
| return done; |
| } |
| |
| /* |
| Notification of completion of asynchronous request transmission. |
| */ |
| static void line6_async_request_sent(struct urb *urb) |
| { |
| struct message *msg = (struct message *)urb->context; |
| |
| if (msg->done >= msg->size) { |
| usb_free_urb(urb); |
| kfree(msg); |
| } else |
| line6_send_raw_message_async_part(msg, urb); |
| } |
| |
| /* |
| Asynchronously send part of a raw message. |
| */ |
| static int line6_send_raw_message_async_part(struct message *msg, |
| struct urb *urb) |
| { |
| int retval; |
| struct usb_line6 *line6 = msg->line6; |
| int done = msg->done; |
| int bytes = min(msg->size - done, line6->max_packet_size); |
| |
| usb_fill_int_urb(urb, line6->usbdev, |
| usb_sndintpipe(line6->usbdev, line6->ep_control_write), |
| (char *)msg->buffer + done, bytes, |
| line6_async_request_sent, msg, line6->interval); |
| |
| #if DO_DUMP_URB_SEND |
| line6_write_hexdump(line6, 'S', (char *)msg->buffer + done, bytes); |
| #endif |
| |
| msg->done += bytes; |
| retval = usb_submit_urb(urb, GFP_ATOMIC); |
| |
| if (retval < 0) { |
| dev_err(line6->ifcdev, "%s: usb_submit_urb failed (%d)\n", |
| __func__, retval); |
| usb_free_urb(urb); |
| kfree(msg); |
| return -EINVAL; |
| } |
| |
| return 0; |
| } |
| |
| /* |
| Asynchronously send raw message. |
| */ |
| int line6_send_raw_message_async(struct usb_line6 *line6, const char *buffer, |
| int size) |
| { |
| struct message *msg; |
| struct urb *urb; |
| |
| /* create message: */ |
| msg = kmalloc(sizeof(struct message), GFP_ATOMIC); |
| |
| if (msg == NULL) { |
| dev_err(line6->ifcdev, "Out of memory\n"); |
| return -ENOMEM; |
| } |
| |
| /* create URB: */ |
| urb = usb_alloc_urb(0, GFP_ATOMIC); |
| |
| if (urb == NULL) { |
| kfree(msg); |
| dev_err(line6->ifcdev, "Out of memory\n"); |
| return -ENOMEM; |
| } |
| |
| /* set message data: */ |
| msg->line6 = line6; |
| msg->buffer = buffer; |
| msg->size = size; |
| msg->done = 0; |
| |
| /* start sending: */ |
| return line6_send_raw_message_async_part(msg, urb); |
| } |
| |
| /* |
| Send sysex message in pieces of wMaxPacketSize bytes. |
| */ |
| int line6_send_sysex_message(struct usb_line6 *line6, const char *buffer, |
| int size) |
| { |
| return line6_send_raw_message(line6, buffer, size + SYSEX_EXTRA_SIZE) - SYSEX_EXTRA_SIZE; |
| } |
| |
| /* |
| Allocate buffer for sysex message and prepare header. |
| @param code sysex message code |
| @param size number of bytes between code and sysex end |
| */ |
| char *line6_alloc_sysex_buffer(struct usb_line6 *line6, int code1, int code2, |
| int size) |
| { |
| char *buffer = kmalloc(size + SYSEX_EXTRA_SIZE, GFP_KERNEL); |
| |
| if (!buffer) { |
| dev_err(line6->ifcdev, "out of memory\n"); |
| return NULL; |
| } |
| |
| buffer[0] = LINE6_SYSEX_BEGIN; |
| memcpy(buffer + 1, line6_midi_id, sizeof(line6_midi_id)); |
| buffer[sizeof(line6_midi_id) + 1] = code1; |
| buffer[sizeof(line6_midi_id) + 2] = code2; |
| buffer[sizeof(line6_midi_id) + 3 + size] = LINE6_SYSEX_END; |
| return buffer; |
| } |
| |
| /* |
| Notification of data received from the Line6 device. |
| */ |
| static void line6_data_received(struct urb *urb) |
| { |
| struct usb_line6 *line6 = (struct usb_line6 *)urb->context; |
| struct MidiBuffer *mb = &line6->line6midi->midibuf_in; |
| int done; |
| |
| if (urb->status == -ESHUTDOWN) |
| return; |
| |
| #if DO_DUMP_URB_RECEIVE |
| line6_dump_urb(urb); |
| #endif |
| |
| done = midibuf_write(mb, urb->transfer_buffer, urb->actual_length); |
| |
| if (done < urb->actual_length) { |
| midibuf_ignore(mb, done); |
| DEBUG_MESSAGES(dev_err(line6->ifcdev, "%d %d buffer overflow - message skipped\n", done, urb->actual_length)); |
| } |
| |
| for (;;) { |
| done = midibuf_read(mb, line6->buffer_message, LINE6_MESSAGE_MAXLEN); |
| |
| if (done == 0) |
| break; |
| |
| /* MIDI input filter */ |
| if (midibuf_skip_message(mb, line6->line6midi->midi_mask_receive)) |
| continue; |
| |
| line6->message_length = done; |
| #if DO_DUMP_MIDI_RECEIVE |
| line6_write_hexdump(line6, 'r', line6->buffer_message, done); |
| #endif |
| line6_midi_receive(line6, line6->buffer_message, done); |
| |
| switch (line6->usbdev->descriptor.idProduct) { |
| case LINE6_DEVID_BASSPODXT: |
| case LINE6_DEVID_BASSPODXTLIVE: |
| case LINE6_DEVID_BASSPODXTPRO: |
| case LINE6_DEVID_PODXT: |
| case LINE6_DEVID_PODXTPRO: |
| case LINE6_DEVID_POCKETPOD: |
| pod_process_message((struct usb_line6_pod *)line6); |
| break; |
| |
| case LINE6_DEVID_PODXTLIVE: |
| switch (line6->interface_number) { |
| case PODXTLIVE_INTERFACE_POD: |
| pod_process_message((struct usb_line6_pod *)line6); |
| break; |
| |
| case PODXTLIVE_INTERFACE_VARIAX: |
| variax_process_message((struct usb_line6_variax *)line6); |
| break; |
| |
| default: |
| dev_err(line6->ifcdev, "PODxt Live interface %d not supported\n", line6->interface_number); |
| } |
| break; |
| |
| case LINE6_DEVID_VARIAX: |
| variax_process_message((struct usb_line6_variax *)line6); |
| break; |
| |
| default: |
| MISSING_CASE; |
| } |
| } |
| |
| line6_start_listen(line6); |
| } |
| |
| static int line6_send(struct usb_line6 *line6, unsigned char *buf, size_t len) |
| { |
| int retval; |
| int partial; |
| |
| #if DO_DUMP_URB_SEND |
| line6_write_hexdump(line6, 'S', buf, len); |
| #endif |
| |
| retval = usb_interrupt_msg(line6->usbdev, |
| usb_sndintpipe(line6->usbdev, |
| line6->ep_control_write), |
| buf, len, &partial, |
| LINE6_TIMEOUT * HZ); |
| |
| if (retval) { |
| dev_err(line6->ifcdev, |
| "usb_interrupt_msg failed (%d)\n", retval); |
| } |
| |
| if (partial != len) { |
| dev_err(line6->ifcdev, |
| "usb_interrupt_msg sent partial message (%d)\n", |
| retval); |
| } |
| |
| return retval; |
| } |
| |
| /* |
| Send channel number (i.e., switch to a different sound). |
| */ |
| int line6_send_program(struct usb_line6 *line6, int value) |
| { |
| unsigned char *buffer; |
| size_t len = 2; |
| |
| buffer = kmalloc(len, GFP_KERNEL); |
| if (!buffer) { |
| dev_err(line6->ifcdev, "out of memory\n"); |
| return -ENOMEM; |
| } |
| |
| buffer[0] = LINE6_PROGRAM_CHANGE | LINE6_CHANNEL_HOST; |
| buffer[1] = value; |
| |
| return line6_send(line6, buffer, len); |
| } |
| |
| /* |
| Transmit Line6 control parameter. |
| */ |
| int line6_transmit_parameter(struct usb_line6 *line6, int param, int value) |
| { |
| unsigned char *buffer; |
| size_t len = 3; |
| |
| buffer = kmalloc(len, GFP_KERNEL); |
| if (!buffer) { |
| dev_err(line6->ifcdev, "out of memory\n"); |
| return -ENOMEM; |
| } |
| |
| buffer[0] = LINE6_PARAM_CHANGE | LINE6_CHANNEL_HOST; |
| buffer[1] = param; |
| buffer[2] = value; |
| |
| return line6_send(line6, buffer, len); |
| } |
| |
| /* |
| Read data from device. |
| */ |
| int line6_read_data(struct usb_line6 *line6, int address, void *data, size_t datalen) |
| { |
| struct usb_device *usbdev = line6->usbdev; |
| int ret; |
| unsigned char len; |
| |
| /* query the serial number: */ |
| ret = usb_control_msg(usbdev, usb_sndctrlpipe(usbdev, 0), 0x67, |
| USB_TYPE_VENDOR | USB_RECIP_DEVICE |
| | USB_DIR_OUT, |
| (datalen << 8) | 0x21, address, |
| NULL, 0, LINE6_TIMEOUT * HZ); |
| |
| if (ret < 0) { |
| dev_err(line6->ifcdev, "read request failed (error %d)\n", ret); |
| return ret; |
| } |
| |
| /* Wait for data length. We'll get a couple of 0xff until length arrives. */ |
| do { |
| ret = usb_control_msg(usbdev, usb_rcvctrlpipe(usbdev, 0), 0x67, |
| USB_TYPE_VENDOR | USB_RECIP_DEVICE | |
| USB_DIR_IN, |
| 0x0012, 0x0000, &len, 1, |
| LINE6_TIMEOUT * HZ); |
| if (ret < 0) { |
| dev_err(line6->ifcdev, |
| "receive length failed (error %d)\n", ret); |
| return ret; |
| } |
| } while (len == 0xff); |
| |
| if (len != datalen) { |
| /* should be equal or something went wrong */ |
| dev_err(line6->ifcdev, |
| "length mismatch (expected %d, got %d)\n", |
| (int)datalen, (int)len); |
| return -EINVAL; |
| } |
| |
| /* receive the result: */ |
| ret = usb_control_msg(usbdev, usb_rcvctrlpipe(usbdev, 0), 0x67, |
| USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN, |
| 0x0013, 0x0000, data, datalen, |
| LINE6_TIMEOUT * HZ); |
| |
| if (ret < 0) { |
| dev_err(line6->ifcdev, "read failed (error %d)\n", ret); |
| return ret; |
| } |
| |
| return 0; |
| } |
| |
| /* |
| Write data to device. |
| */ |
| int line6_write_data(struct usb_line6 *line6, int address, void *data, |
| size_t datalen) |
| { |
| struct usb_device *usbdev = line6->usbdev; |
| int ret; |
| unsigned char status; |
| |
| ret = usb_control_msg(usbdev, usb_sndctrlpipe(usbdev, 0), 0x67, |
| USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT, |
| 0x0022, address, data, datalen, |
| LINE6_TIMEOUT * HZ); |
| |
| if (ret < 0) { |
| dev_err(line6->ifcdev, |
| "write request failed (error %d)\n", ret); |
| return ret; |
| } |
| |
| do { |
| ret = usb_control_msg(usbdev, usb_rcvctrlpipe(usbdev, 0), |
| 0x67, |
| USB_TYPE_VENDOR | USB_RECIP_DEVICE | |
| USB_DIR_IN, |
| 0x0012, 0x0000, |
| &status, 1, LINE6_TIMEOUT * HZ); |
| |
| if (ret < 0) { |
| dev_err(line6->ifcdev, |
| "receiving status failed (error %d)\n", ret); |
| return ret; |
| } |
| } |
| while (status == 0xff) |
| ; |
| |
| if (status != 0) { |
| dev_err(line6->ifcdev, "write failed (error %d)\n", ret); |
| return -EINVAL; |
| } |
| |
| return 0; |
| } |
| |
| /* |
| Read Line6 device serial number. |
| (POD, TonePort, GuitarPort) |
| */ |
| int line6_read_serial_number(struct usb_line6 *line6, int *serial_number) |
| { |
| return line6_read_data(line6, 0x80d0, serial_number, sizeof(*serial_number)); |
| } |
| |
| /* |
| No operation (i.e., unsupported). |
| */ |
| ssize_t line6_nop_read(struct device *dev, struct device_attribute *attr, |
| char *buf) |
| { |
| return 0; |
| } |
| |
| /* |
| No operation (i.e., unsupported). |
| */ |
| ssize_t line6_nop_write(struct device *dev, struct device_attribute *attr, |
| const char *buf, size_t count) |
| { |
| return count; |
| } |
| |
| /* |
| "write" request on "raw" special file. |
| */ |
| #if CREATE_RAW_FILE |
| ssize_t line6_set_raw(struct device *dev, struct device_attribute *attr, |
| const char *buf, size_t count) |
| { |
| struct usb_interface *interface = to_usb_interface(dev); |
| struct usb_line6 *line6 = usb_get_intfdata(interface); |
| line6_send_raw_message(line6, buf, count); |
| return count; |
| } |
| #endif |
| |
| /* |
| Generic destructor. |
| */ |
| static void line6_destruct(struct usb_interface *interface) |
| { |
| struct usb_line6 *line6; |
| |
| if (interface == NULL) |
| return; |
| line6 = usb_get_intfdata(interface); |
| if (line6 == NULL) |
| return; |
| |
| /* free buffer memory first: */ |
| kfree(line6->buffer_message); |
| kfree(line6->buffer_listen); |
| |
| /* then free URBs: */ |
| usb_free_urb(line6->urb_listen); |
| |
| /* make sure the device isn't destructed twice: */ |
| usb_set_intfdata(interface, NULL); |
| |
| /* free interface data: */ |
| kfree(line6); |
| } |
| |
| static void line6_list_devices(void) |
| { |
| int i; |
| |
| for (i = 0; i < LINE6_MAX_DEVICES; ++i) { |
| struct usb_line6 *dev = line6_devices[i]; |
| printk(KERN_INFO "Line6 device %d: ", i); |
| |
| if (dev == NULL) |
| printk("(not used)\n"); |
| else |
| printk("%s:%d\n", dev->properties->name, dev->interface_number); |
| } |
| } |
| |
| /* |
| Probe USB device. |
| */ |
| static int line6_probe(struct usb_interface *interface, const struct usb_device_id *id) |
| { |
| int devtype; |
| struct usb_device *usbdev = NULL; |
| struct usb_line6 *line6 = NULL; |
| const struct line6_properties *properties; |
| int devnum; |
| int interface_number, alternate = 0; |
| int product; |
| int size = 0; |
| int ep_read = 0, ep_write = 0; |
| int ret; |
| |
| if (interface == NULL) |
| return -ENODEV; |
| usbdev = interface_to_usbdev(interface); |
| if (usbdev == NULL) |
| return -ENODEV; |
| |
| /* increment reference counters: */ |
| usb_get_intf(interface); |
| usb_get_dev(usbdev); |
| |
| /* we don't handle multiple configurations */ |
| if (usbdev->descriptor.bNumConfigurations != 1) |
| return -ENODEV; |
| |
| /* check vendor and product id */ |
| for (devtype = ARRAY_SIZE(line6_id_table) - 1; devtype--;) { |
| u16 idVendor = le16_to_cpu(usbdev->descriptor.idVendor); |
| u16 idProduct = le16_to_cpu(usbdev->descriptor.idProduct); |
| |
| if (idVendor == line6_id_table[devtype].idVendor |
| && idProduct == line6_id_table[devtype].idProduct) |
| break; |
| } |
| |
| if (devtype < 0) |
| return -ENODEV; |
| |
| /* find free slot in device table: */ |
| for (devnum = 0; devnum < LINE6_MAX_DEVICES; ++devnum) |
| if (line6_devices[devnum] == NULL) |
| break; |
| |
| if (devnum == LINE6_MAX_DEVICES) |
| return -ENODEV; |
| |
| /* initialize device info: */ |
| properties = &line6_properties_table[devtype]; |
| dev_info(&interface->dev, "Line6 %s found\n", properties->name); |
| product = le16_to_cpu(usbdev->descriptor.idProduct); |
| |
| /* query interface number */ |
| interface_number = interface->cur_altsetting->desc.bInterfaceNumber; |
| |
| switch (product) { |
| case LINE6_DEVID_BASSPODXTLIVE: |
| case LINE6_DEVID_POCKETPOD: |
| case LINE6_DEVID_PODXTLIVE: |
| case LINE6_DEVID_VARIAX: |
| alternate = 1; |
| break; |
| |
| case LINE6_DEVID_PODX3: |
| case LINE6_DEVID_PODX3LIVE: |
| switch (interface_number) { |
| case 0: |
| alternate = 1; |
| break; |
| case 1: |
| alternate = 0; |
| break; |
| default: |
| MISSING_CASE; |
| } |
| break; |
| |
| case LINE6_DEVID_BASSPODXT: |
| case LINE6_DEVID_BASSPODXTPRO: |
| case LINE6_DEVID_PODXT: |
| case LINE6_DEVID_PODXTPRO: |
| alternate = 5; |
| break; |
| |
| case LINE6_DEVID_TONEPORT_GX: |
| case LINE6_DEVID_GUITARPORT: |
| alternate = 2; /* 1..4 seem to be ok */ |
| break; |
| |
| case LINE6_DEVID_TONEPORT_UX1: |
| case LINE6_DEVID_TONEPORT_UX2: |
| switch (interface_number) { |
| case 0: |
| /* defaults to 44.1kHz, 16-bit */ |
| alternate = 2; |
| break; |
| case 1: |
| alternate = 0; |
| break; |
| default: |
| MISSING_CASE; |
| } |
| break; |
| |
| default: |
| MISSING_CASE; |
| return -ENODEV; |
| } |
| |
| ret = usb_set_interface(usbdev, interface_number, alternate); |
| if (ret < 0) { |
| dev_err(&interface->dev, "set_interface failed\n"); |
| return ret; |
| } |
| |
| /* initialize device data based on product id: */ |
| switch (product) { |
| case LINE6_DEVID_BASSPODXT: |
| case LINE6_DEVID_BASSPODXTLIVE: |
| case LINE6_DEVID_BASSPODXTPRO: |
| case LINE6_DEVID_POCKETPOD: |
| case LINE6_DEVID_PODXT: |
| case LINE6_DEVID_PODXTPRO: |
| size = sizeof(struct usb_line6_pod); |
| ep_read = 0x84; |
| ep_write = 0x03; |
| break; |
| |
| case LINE6_DEVID_PODX3: |
| case LINE6_DEVID_PODX3LIVE: |
| /* currently unused! */ |
| size = sizeof(struct usb_line6_pod); |
| ep_read = 0x81; |
| ep_write = 0x01; |
| break; |
| |
| case LINE6_DEVID_TONEPORT_GX: |
| case LINE6_DEVID_TONEPORT_UX1: |
| case LINE6_DEVID_TONEPORT_UX2: |
| case LINE6_DEVID_GUITARPORT: |
| size = sizeof(struct usb_line6_toneport); |
| /* these don't have a control channel */ |
| break; |
| |
| case LINE6_DEVID_PODXTLIVE: |
| switch (interface_number) { |
| case PODXTLIVE_INTERFACE_POD: |
| size = sizeof(struct usb_line6_pod); |
| ep_read = 0x84; |
| ep_write = 0x03; |
| break; |
| |
| case PODXTLIVE_INTERFACE_VARIAX: |
| size = sizeof(struct usb_line6_variax); |
| ep_read = 0x86; |
| ep_write = 0x05; |
| break; |
| |
| default: |
| return -ENODEV; |
| } |
| break; |
| |
| case LINE6_DEVID_VARIAX: |
| size = sizeof(struct usb_line6_variax); |
| ep_read = 0x82; |
| ep_write = 0x01; |
| break; |
| |
| default: |
| MISSING_CASE; |
| return -ENODEV; |
| } |
| |
| if (size == 0) { |
| dev_err(line6->ifcdev, "driver bug: interface data size not set\n"); |
| return -ENODEV; |
| } |
| |
| line6 = kzalloc(size, GFP_KERNEL); |
| |
| if (line6 == NULL) { |
| dev_err(&interface->dev, "Out of memory\n"); |
| return -ENOMEM; |
| } |
| |
| /* store basic data: */ |
| line6->interface_number = interface_number; |
| line6->properties = properties; |
| line6->usbdev = usbdev; |
| line6->ifcdev = &interface->dev; |
| line6->ep_control_read = ep_read; |
| line6->ep_control_write = ep_write; |
| line6->product = product; |
| |
| /* get data from endpoint descriptor (see usb_maxpacket): */ |
| { |
| struct usb_host_endpoint *ep; |
| unsigned epnum = usb_pipeendpoint(usb_rcvintpipe(usbdev, ep_read)); |
| ep = usbdev->ep_in[epnum]; |
| |
| if (ep != NULL) { |
| line6->interval = ep->desc.bInterval; |
| line6->max_packet_size = le16_to_cpu(ep->desc.wMaxPacketSize); |
| } else { |
| line6->interval = LINE6_FALLBACK_INTERVAL; |
| line6->max_packet_size = LINE6_FALLBACK_MAXPACKETSIZE; |
| dev_err(line6->ifcdev, "endpoint not available, using fallback values"); |
| } |
| } |
| |
| usb_set_intfdata(interface, line6); |
| |
| if (properties->capabilities & LINE6_BIT_CONTROL) { |
| /* initialize USB buffers: */ |
| line6->buffer_listen = kmalloc(LINE6_BUFSIZE_LISTEN, GFP_KERNEL); |
| |
| if (line6->buffer_listen == NULL) { |
| dev_err(&interface->dev, "Out of memory\n"); |
| line6_destruct(interface); |
| return -ENOMEM; |
| } |
| |
| line6->buffer_message = kmalloc(LINE6_MESSAGE_MAXLEN, GFP_KERNEL); |
| |
| if (line6->buffer_message == NULL) { |
| dev_err(&interface->dev, "Out of memory\n"); |
| line6_destruct(interface); |
| return -ENOMEM; |
| } |
| |
| line6->urb_listen = usb_alloc_urb(0, GFP_KERNEL); |
| |
| if (line6->urb_listen == NULL) { |
| dev_err(&interface->dev, "Out of memory\n"); |
| line6_destruct(interface); |
| return -ENOMEM; |
| } |
| |
| ret = line6_start_listen(line6); |
| if (ret < 0) { |
| dev_err(&interface->dev, "%s: usb_submit_urb failed\n", |
| __func__); |
| line6_destruct(interface); |
| return ret; |
| } |
| } |
| |
| /* initialize device data based on product id: */ |
| switch (product) { |
| case LINE6_DEVID_BASSPODXT: |
| case LINE6_DEVID_BASSPODXTLIVE: |
| case LINE6_DEVID_BASSPODXTPRO: |
| case LINE6_DEVID_POCKETPOD: |
| case LINE6_DEVID_PODX3: |
| case LINE6_DEVID_PODX3LIVE: |
| case LINE6_DEVID_PODXT: |
| case LINE6_DEVID_PODXTPRO: |
| ret = pod_init(interface, (struct usb_line6_pod *)line6); |
| break; |
| |
| case LINE6_DEVID_PODXTLIVE: |
| switch (interface_number) { |
| case PODXTLIVE_INTERFACE_POD: |
| ret = pod_init(interface, (struct usb_line6_pod *)line6); |
| break; |
| |
| case PODXTLIVE_INTERFACE_VARIAX: |
| ret = variax_init(interface, (struct usb_line6_variax *)line6); |
| break; |
| |
| default: |
| dev_err(&interface->dev, |
| "PODxt Live interface %d not supported\n", |
| interface_number); |
| ret = -ENODEV; |
| } |
| |
| break; |
| |
| case LINE6_DEVID_VARIAX: |
| ret = variax_init(interface, (struct usb_line6_variax *)line6); |
| break; |
| |
| case LINE6_DEVID_TONEPORT_GX: |
| case LINE6_DEVID_TONEPORT_UX1: |
| case LINE6_DEVID_TONEPORT_UX2: |
| case LINE6_DEVID_GUITARPORT: |
| ret = toneport_init(interface, (struct usb_line6_toneport *)line6); |
| break; |
| |
| default: |
| MISSING_CASE; |
| ret = -ENODEV; |
| } |
| |
| if (ret < 0) { |
| line6_destruct(interface); |
| return ret; |
| } |
| |
| ret = sysfs_create_link(&interface->dev.kobj, &usbdev->dev.kobj, |
| "usb_device"); |
| if (ret < 0) { |
| line6_destruct(interface); |
| return ret; |
| } |
| |
| dev_info(&interface->dev, "Line6 %s now attached\n", |
| line6->properties->name); |
| line6_devices[devnum] = line6; |
| line6_list_devices(); |
| return ret; |
| } |
| |
| /* |
| Line6 device disconnected. |
| */ |
| static void line6_disconnect(struct usb_interface *interface) |
| { |
| struct usb_line6 *line6; |
| struct usb_device *usbdev; |
| int interface_number, i; |
| |
| if (interface == NULL) |
| return; |
| usbdev = interface_to_usbdev(interface); |
| if (usbdev == NULL) |
| return; |
| |
| sysfs_remove_link(&interface->dev.kobj, "usb_device"); |
| |
| interface_number = interface->cur_altsetting->desc.bInterfaceNumber; |
| line6 = usb_get_intfdata(interface); |
| |
| if (line6 != NULL) { |
| if (line6->urb_listen != NULL) |
| usb_kill_urb(line6->urb_listen); |
| |
| if (usbdev != line6->usbdev) |
| dev_err(line6->ifcdev, |
| "driver bug: inconsistent usb device\n"); |
| |
| switch (line6->usbdev->descriptor.idProduct) { |
| case LINE6_DEVID_BASSPODXT: |
| case LINE6_DEVID_BASSPODXTLIVE: |
| case LINE6_DEVID_BASSPODXTPRO: |
| case LINE6_DEVID_POCKETPOD: |
| case LINE6_DEVID_PODX3: |
| case LINE6_DEVID_PODX3LIVE: |
| case LINE6_DEVID_PODXT: |
| case LINE6_DEVID_PODXTPRO: |
| pod_disconnect(interface); |
| break; |
| |
| case LINE6_DEVID_PODXTLIVE: |
| switch (interface_number) { |
| case PODXTLIVE_INTERFACE_POD: |
| pod_disconnect(interface); |
| break; |
| |
| case PODXTLIVE_INTERFACE_VARIAX: |
| variax_disconnect(interface); |
| break; |
| } |
| |
| break; |
| |
| case LINE6_DEVID_VARIAX: |
| variax_disconnect(interface); |
| break; |
| |
| case LINE6_DEVID_TONEPORT_GX: |
| case LINE6_DEVID_TONEPORT_UX1: |
| case LINE6_DEVID_TONEPORT_UX2: |
| case LINE6_DEVID_GUITARPORT: |
| toneport_disconnect(interface); |
| break; |
| |
| default: |
| MISSING_CASE; |
| } |
| |
| dev_info(&interface->dev, "Line6 %s now disconnected\n", line6->properties->name); |
| |
| for (i = LINE6_MAX_DEVICES; i--;) { |
| if (line6_devices[i] == line6) |
| line6_devices[i] = NULL; |
| } |
| } |
| |
| line6_destruct(interface); |
| |
| /* decrement reference counters: */ |
| usb_put_intf(interface); |
| usb_put_dev(usbdev); |
| |
| line6_list_devices(); |
| } |
| |
| static struct usb_driver line6_driver = { |
| .name = DRIVER_NAME, |
| .probe = line6_probe, |
| .disconnect = line6_disconnect, |
| .id_table = line6_id_table, |
| }; |
| |
| /* |
| Module initialization. |
| */ |
| static int __init line6_init(void) |
| { |
| int i, retval; |
| |
| printk(KERN_INFO "%s driver version %s%s\n", |
| DRIVER_NAME, DRIVER_VERSION, DRIVER_REVISION); |
| line6_workqueue = create_workqueue(DRIVER_NAME); |
| |
| if (line6_workqueue == NULL) { |
| err("couldn't create workqueue"); |
| return -EINVAL; |
| } |
| |
| for (i = LINE6_MAX_DEVICES; i--;) |
| line6_devices[i] = NULL; |
| |
| retval = usb_register(&line6_driver); |
| |
| if (retval) |
| err("usb_register failed. Error number %d", retval); |
| |
| return retval; |
| } |
| |
| /* |
| Module cleanup. |
| */ |
| static void __exit line6_exit(void) |
| { |
| destroy_workqueue(line6_workqueue); |
| usb_deregister(&line6_driver); |
| } |
| |
| module_init(line6_init); |
| module_exit(line6_exit); |
| |
| MODULE_AUTHOR(DRIVER_AUTHOR); |
| MODULE_DESCRIPTION(DRIVER_DESC); |
| MODULE_LICENSE("GPL"); |
| MODULE_VERSION(DRIVER_VERSION); |