| /* |
| * 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/slab.h> |
| |
| #include "audio.h" |
| #include "capture.h" |
| #include "control.h" |
| #include "playback.h" |
| #include "pod.h" |
| |
| |
| #define POD_SYSEX_CODE 3 |
| #define POD_BYTES_PER_FRAME 6 /* 24bit audio (stereo) */ |
| |
| |
| enum { |
| POD_SYSEX_CLIP = 0x0f, |
| POD_SYSEX_SAVE = 0x24, |
| POD_SYSEX_SYSTEM = 0x56, |
| POD_SYSEX_SYSTEMREQ = 0x57, |
| /* POD_SYSEX_UPDATE = 0x6c, */ /* software update! */ |
| POD_SYSEX_STORE = 0x71, |
| POD_SYSEX_FINISH = 0x72, |
| POD_SYSEX_DUMPMEM = 0x73, |
| POD_SYSEX_DUMP = 0x74, |
| POD_SYSEX_DUMPREQ = 0x75 |
| /* POD_SYSEX_DUMPMEM2 = 0x76 */ /* dumps entire internal memory of PODxt Pro */ |
| }; |
| |
| enum { |
| POD_monitor_level = 0x04, |
| POD_routing = 0x05, |
| POD_tuner_mute = 0x13, |
| POD_tuner_freq = 0x15, |
| POD_tuner_note = 0x16, |
| POD_tuner_pitch = 0x17, |
| POD_system_invalid = 0x7fff |
| }; |
| |
| enum { |
| POD_DUMP_MEMORY = 2 |
| }; |
| |
| enum { |
| POD_BUSY_READ, |
| POD_BUSY_WRITE, |
| POD_CHANNEL_DIRTY, |
| POD_SAVE_PRESSED, |
| POD_BUSY_MIDISEND |
| }; |
| |
| |
| static struct snd_ratden pod_ratden = { |
| .num_min = 78125, |
| .num_max = 78125, |
| .num_step = 1, |
| .den = 2 |
| }; |
| |
| static struct line6_pcm_properties pod_pcm_properties = { |
| .snd_line6_playback_hw = { |
| .info = (SNDRV_PCM_INFO_MMAP | |
| SNDRV_PCM_INFO_INTERLEAVED | |
| SNDRV_PCM_INFO_BLOCK_TRANSFER | |
| SNDRV_PCM_INFO_MMAP_VALID | |
| SNDRV_PCM_INFO_PAUSE | |
| SNDRV_PCM_INFO_SYNC_START), |
| .formats = SNDRV_PCM_FMTBIT_S24_3LE, |
| .rates = SNDRV_PCM_RATE_KNOT, |
| .rate_min = 39062, |
| .rate_max = 39063, |
| .channels_min = 2, |
| .channels_max = 2, |
| .buffer_bytes_max = 60000, |
| .period_bytes_min = LINE6_ISO_PACKET_SIZE_MAX * POD_BYTES_PER_FRAME, /* at least one URB must fit into one period */ |
| .period_bytes_max = 8192, |
| .periods_min = 1, |
| .periods_max = 1024 |
| }, |
| .snd_line6_capture_hw = { |
| .info = (SNDRV_PCM_INFO_MMAP | |
| SNDRV_PCM_INFO_INTERLEAVED | |
| SNDRV_PCM_INFO_BLOCK_TRANSFER | |
| SNDRV_PCM_INFO_MMAP_VALID | |
| SNDRV_PCM_INFO_SYNC_START), |
| .formats = SNDRV_PCM_FMTBIT_S24_3LE, |
| .rates = SNDRV_PCM_RATE_KNOT, |
| .rate_min = 39062, |
| .rate_max = 39063, |
| .channels_min = 2, |
| .channels_max = 2, |
| .buffer_bytes_max = 60000, |
| .period_bytes_min = LINE6_ISO_PACKET_SIZE_MAX * POD_BYTES_PER_FRAME, /* at least one URB must fit into one period */ |
| .period_bytes_max = 8192, |
| .periods_min = 1, |
| .periods_max = 1024 |
| }, |
| .snd_line6_rates = { |
| .nrats = 1, |
| .rats = &pod_ratden |
| }, |
| .bytes_per_frame = POD_BYTES_PER_FRAME |
| }; |
| |
| static const char pod_request_version[] = { 0xf0, 0x7e, 0x7f, 0x06, 0x01, 0xf7 }; |
| static const char pod_request_channel[] = { 0xf0, 0x00, 0x01, 0x0c, 0x03, 0x75, 0xf7 }; |
| static const char pod_version_header[] = { 0xf2, 0x7e, 0x7f, 0x06, 0x02 }; |
| |
| |
| /* |
| Mark all parameters as dirty and notify waiting processes. |
| */ |
| static void pod_mark_batch_all_dirty(struct usb_line6_pod *pod) |
| { |
| int i; |
| |
| for (i = 0; i < POD_CONTROL_SIZE; i++) |
| set_bit(i, pod->param_dirty); |
| } |
| |
| /* |
| Send an asynchronous request for the POD firmware version and device ID. |
| */ |
| static int pod_version_request_async(struct usb_line6_pod *pod) |
| { |
| return line6_send_raw_message_async(&pod->line6, pod->buffer_versionreq, sizeof(pod_request_version)); |
| } |
| |
| static void pod_create_files_work(struct work_struct *work) |
| { |
| struct usb_line6_pod *pod = container_of(work, struct usb_line6_pod, create_files_work); |
| |
| pod_create_files(pod->firmware_version, pod->line6.properties->device_bit, pod->line6.ifcdev); |
| } |
| |
| static void pod_startup_timeout(unsigned long arg) |
| { |
| enum { |
| REQUEST_NONE, |
| REQUEST_DUMP, |
| REQUEST_VERSION |
| }; |
| |
| int request = REQUEST_NONE; |
| struct usb_line6_pod *pod = (struct usb_line6_pod *)arg; |
| |
| if (pod->dumpreq.ok) { |
| if (!pod->versionreq_ok) |
| request = REQUEST_VERSION; |
| } else { |
| if (pod->versionreq_ok) |
| request = REQUEST_DUMP; |
| else if (pod->startup_count++ & 1) |
| request = REQUEST_DUMP; |
| else |
| request = REQUEST_VERSION; |
| } |
| |
| switch (request) { |
| case REQUEST_DUMP: |
| line6_dump_request_async(&pod->dumpreq, &pod->line6, 0); |
| break; |
| |
| case REQUEST_VERSION: |
| pod_version_request_async(pod); |
| break; |
| |
| default: |
| return; |
| } |
| |
| line6_startup_delayed(&pod->dumpreq, 1, pod_startup_timeout, pod); |
| } |
| |
| static char *pod_alloc_sysex_buffer(struct usb_line6_pod *pod, int code, int size) |
| { |
| return line6_alloc_sysex_buffer(&pod->line6, POD_SYSEX_CODE, code, size); |
| } |
| |
| /* |
| Send channel dump data to the PODxt Pro. |
| */ |
| static void pod_dump(struct usb_line6_pod *pod, const unsigned char *data) |
| { |
| int size = 1 + sizeof(pod->prog_data); |
| char *sysex = pod_alloc_sysex_buffer(pod, POD_SYSEX_DUMP, size); |
| if (!sysex) |
| return; |
| /* Don't know what this is good for, but PODxt Pro transmits it, so we |
| * also do... */ |
| sysex[SYSEX_DATA_OFS] = 5; |
| memcpy(sysex + SYSEX_DATA_OFS + 1, data, sizeof(pod->prog_data)); |
| line6_send_sysex_message(&pod->line6, sysex, size); |
| memcpy(&pod->prog_data, data, sizeof(pod->prog_data)); |
| pod_mark_batch_all_dirty(pod); |
| kfree(sysex); |
| } |
| |
| /* |
| Store parameter value in driver memory and mark it as dirty. |
| */ |
| static void pod_store_parameter(struct usb_line6_pod *pod, int param, int value) |
| { |
| pod->prog_data.control[param] = value; |
| set_bit(param, pod->param_dirty); |
| pod->dirty = 1; |
| } |
| |
| /* |
| Handle SAVE button |
| */ |
| static void pod_save_button_pressed(struct usb_line6_pod *pod, int type, int index) |
| { |
| pod->dirty = 0; |
| set_bit(POD_SAVE_PRESSED, &pod->atomic_flags); |
| } |
| |
| /* |
| Process a completely received message. |
| */ |
| void pod_process_message(struct usb_line6_pod *pod) |
| { |
| const unsigned char *buf = pod->line6.buffer_message; |
| |
| /* filter messages by type */ |
| switch (buf[0] & 0xf0) { |
| case LINE6_PARAM_CHANGE: |
| case LINE6_PROGRAM_CHANGE: |
| case LINE6_SYSEX_BEGIN: |
| break; /* handle these further down */ |
| |
| default: |
| return; /* ignore all others */ |
| } |
| |
| /* process all remaining messages */ |
| switch (buf[0]) { |
| case LINE6_PARAM_CHANGE | LINE6_CHANNEL_DEVICE: |
| pod_store_parameter(pod, buf[1], buf[2]); |
| /* intentionally no break here! */ |
| |
| case LINE6_PARAM_CHANGE | LINE6_CHANNEL_HOST: |
| if ((buf[1] == POD_amp_model_setup) || |
| (buf[1] == POD_effect_setup)) |
| /* these also affect other settings */ |
| line6_dump_request_async(&pod->dumpreq, &pod->line6, 0); |
| |
| break; |
| |
| case LINE6_PROGRAM_CHANGE | LINE6_CHANNEL_DEVICE: |
| case LINE6_PROGRAM_CHANGE | LINE6_CHANNEL_HOST: |
| pod->channel_num = buf[1]; |
| pod->dirty = 0; |
| set_bit(POD_CHANNEL_DIRTY, &pod->atomic_flags); |
| line6_dump_request_async(&pod->dumpreq, &pod->line6, 0); |
| break; |
| |
| case LINE6_SYSEX_BEGIN | LINE6_CHANNEL_DEVICE: |
| case LINE6_SYSEX_BEGIN | LINE6_CHANNEL_UNKNOWN: |
| if (memcmp(buf + 1, line6_midi_id, sizeof(line6_midi_id)) == 0) { |
| switch (buf[5]) { |
| case POD_SYSEX_DUMP: |
| if (pod->line6.message_length == sizeof(pod->prog_data) + 7) { |
| switch (pod->dumpreq.in_progress) { |
| case LINE6_DUMP_CURRENT: |
| memcpy(&pod->prog_data, buf + 7, sizeof(pod->prog_data)); |
| pod_mark_batch_all_dirty(pod); |
| pod->dumpreq.ok = 1; |
| break; |
| |
| case POD_DUMP_MEMORY: |
| memcpy(&pod->prog_data_buf, buf + 7, sizeof(pod->prog_data_buf)); |
| break; |
| |
| default: |
| DEBUG_MESSAGES(dev_err(pod->line6.ifcdev, "unknown dump code %02X\n", pod->dumpreq.in_progress)); |
| } |
| |
| line6_dump_finished(&pod->dumpreq); |
| } else |
| DEBUG_MESSAGES(dev_err(pod->line6.ifcdev, "wrong size of channel dump message (%d instead of %d)\n", |
| pod->line6.message_length, (int)sizeof(pod->prog_data) + 7)); |
| |
| break; |
| |
| case POD_SYSEX_SYSTEM: { |
| short value = ((int)buf[7] << 12) | ((int)buf[8] << 8) | ((int)buf[9] << 4) | (int)buf[10]; |
| |
| #define PROCESS_SYSTEM_PARAM(x) \ |
| case POD_ ## x: \ |
| pod->x.value = value; \ |
| wake_up_interruptible(&pod->x.wait); \ |
| break; |
| |
| switch (buf[6]) { |
| PROCESS_SYSTEM_PARAM(monitor_level); |
| PROCESS_SYSTEM_PARAM(routing); |
| PROCESS_SYSTEM_PARAM(tuner_mute); |
| PROCESS_SYSTEM_PARAM(tuner_freq); |
| PROCESS_SYSTEM_PARAM(tuner_note); |
| PROCESS_SYSTEM_PARAM(tuner_pitch); |
| |
| #undef PROCESS_SYSTEM_PARAM |
| |
| default: |
| DEBUG_MESSAGES(dev_err(pod->line6.ifcdev, "unknown tuner/system response %02X\n", buf[6])); |
| } |
| |
| break; |
| } |
| |
| case POD_SYSEX_FINISH: |
| /* do we need to respond to this? */ |
| break; |
| |
| case POD_SYSEX_SAVE: |
| pod_save_button_pressed(pod, buf[6], buf[7]); |
| break; |
| |
| case POD_SYSEX_CLIP: |
| DEBUG_MESSAGES(dev_err(pod->line6.ifcdev, "audio clipped\n")); |
| pod->clipping.value = 1; |
| wake_up_interruptible(&pod->clipping.wait); |
| break; |
| |
| case POD_SYSEX_STORE: |
| DEBUG_MESSAGES(dev_err(pod->line6.ifcdev, "message %02X not yet implemented\n", buf[5])); |
| break; |
| |
| default: |
| DEBUG_MESSAGES(dev_err(pod->line6.ifcdev, "unknown sysex message %02X\n", buf[5])); |
| } |
| } else if (memcmp(buf, pod_version_header, sizeof(pod_version_header)) == 0) { |
| if (pod->versionreq_ok == 0) { |
| pod->firmware_version = buf[13] * 100 + buf[14] * 10 + buf[15]; |
| pod->device_id = ((int)buf[8] << 16) | ((int)buf[9] << 8) | (int)buf[10]; |
| pod->versionreq_ok = 1; |
| |
| /* Now we know the firmware version, so we schedule a bottom half |
| handler to create the special files: */ |
| INIT_WORK(&pod->create_files_work, pod_create_files_work); |
| queue_work(line6_workqueue, &pod->create_files_work); |
| } else |
| DEBUG_MESSAGES(dev_err(pod->line6.ifcdev, "multiple firmware version message\n")); |
| } else |
| DEBUG_MESSAGES(dev_err(pod->line6.ifcdev, "unknown sysex header\n")); |
| |
| break; |
| |
| case LINE6_SYSEX_END: |
| break; |
| |
| default: |
| DEBUG_MESSAGES(dev_err(pod->line6.ifcdev, "POD: unknown message %02X\n", buf[0])); |
| } |
| } |
| |
| /* |
| Detect some cases that require a channel dump after sending a command to the |
| device. Important notes: |
| *) The actual dump request can not be sent here since we are not allowed to |
| wait for the completion of the first message in this context, and sending |
| the dump request before completion of the previous message leaves the POD |
| in an undefined state. The dump request will be sent when the echoed |
| commands are received. |
| *) This method fails if a param change message is "chopped" after the first |
| byte. |
| */ |
| void pod_midi_postprocess(struct usb_line6_pod *pod, unsigned char *data, int length) |
| { |
| int i; |
| |
| if (!pod->midi_postprocess) |
| return; |
| |
| for (i = 0; i < length; ++i) { |
| if (data[i] == (LINE6_PROGRAM_CHANGE | LINE6_CHANNEL_HOST)) { |
| line6_invalidate_current(&pod->dumpreq); |
| break; |
| } else if ((data[i] == (LINE6_PARAM_CHANGE | LINE6_CHANNEL_HOST)) && (i < length - 1)) |
| if ((data[i + 1] == POD_amp_model_setup) || (data[i + 1] == POD_effect_setup)) { |
| line6_invalidate_current(&pod->dumpreq); |
| break; |
| } |
| } |
| } |
| |
| /* |
| Send channel number (i.e., switch to a different sound). |
| */ |
| static void pod_send_channel(struct usb_line6_pod *pod, int value) |
| { |
| line6_invalidate_current(&pod->dumpreq); |
| |
| if (line6_send_program(&pod->line6, value) == 0) |
| pod->channel_num = value; |
| else |
| line6_dump_finished(&pod->dumpreq); |
| } |
| |
| /* |
| Transmit PODxt Pro control parameter. |
| */ |
| void pod_transmit_parameter(struct usb_line6_pod *pod, int param, int value) |
| { |
| if (line6_transmit_parameter(&pod->line6, param, value) == 0) |
| pod_store_parameter(pod, param, value); |
| |
| if ((param == POD_amp_model_setup) || (param == POD_effect_setup)) /* these also affect other settings */ |
| line6_invalidate_current(&pod->dumpreq); |
| } |
| |
| /* |
| Resolve value to memory location. |
| */ |
| static int pod_resolve(const char *buf, short block0, short block1, unsigned char *location) |
| { |
| unsigned long value; |
| short block; |
| int ret; |
| |
| ret = strict_strtoul(buf, 10, &value); |
| if (ret) |
| return ret; |
| |
| block = (value < 0x40) ? block0 : block1; |
| value &= 0x3f; |
| location[0] = block >> 7; |
| location[1] = value | (block & 0x7f); |
| return 0; |
| } |
| |
| /* |
| Send command to store channel/effects setup/amp setup to PODxt Pro. |
| */ |
| static ssize_t pod_send_store_command(struct device *dev, const char *buf, size_t count, short block0, short block1) |
| { |
| struct usb_interface *interface = to_usb_interface(dev); |
| struct usb_line6_pod *pod = usb_get_intfdata(interface); |
| int ret; |
| int size = 3 + sizeof(pod->prog_data_buf); |
| char *sysex = pod_alloc_sysex_buffer(pod, POD_SYSEX_STORE, size); |
| |
| if (!sysex) |
| return 0; |
| |
| sysex[SYSEX_DATA_OFS] = 5; /* see pod_dump() */ |
| ret = pod_resolve(buf, block0, block1, sysex + SYSEX_DATA_OFS + 1); |
| if (ret) { |
| kfree(sysex); |
| return ret; |
| } |
| |
| memcpy(sysex + SYSEX_DATA_OFS + 3, &pod->prog_data_buf, sizeof(pod->prog_data_buf)); |
| |
| line6_send_sysex_message(&pod->line6, sysex, size); |
| kfree(sysex); |
| /* needs some delay here on AMD64 platform */ |
| return count; |
| } |
| |
| /* |
| Send command to retrieve channel/effects setup/amp setup to PODxt Pro. |
| */ |
| static ssize_t pod_send_retrieve_command(struct device *dev, const char *buf, size_t count, short block0, short block1) |
| { |
| struct usb_interface *interface = to_usb_interface(dev); |
| struct usb_line6_pod *pod = usb_get_intfdata(interface); |
| int ret; |
| int size = 4; |
| char *sysex = pod_alloc_sysex_buffer(pod, POD_SYSEX_DUMPMEM, size); |
| |
| if (!sysex) |
| return 0; |
| |
| ret = pod_resolve(buf, block0, block1, sysex + SYSEX_DATA_OFS); |
| if (ret) { |
| kfree(sysex); |
| return ret; |
| } |
| sysex[SYSEX_DATA_OFS + 2] = 0; |
| sysex[SYSEX_DATA_OFS + 3] = 0; |
| line6_dump_started(&pod->dumpreq, POD_DUMP_MEMORY); |
| |
| if (line6_send_sysex_message(&pod->line6, sysex, size) < size) |
| line6_dump_finished(&pod->dumpreq); |
| |
| kfree(sysex); |
| /* needs some delay here on AMD64 platform */ |
| return count; |
| } |
| |
| /* |
| Generic get name function. |
| */ |
| static ssize_t get_name_generic(struct usb_line6_pod *pod, const char *str, char *buf) |
| { |
| int length = 0; |
| const char *p1; |
| char *p2; |
| char *last_non_space = buf; |
| |
| int retval = line6_wait_dump(&pod->dumpreq, 0); |
| if (retval < 0) |
| return retval; |
| |
| for (p1 = str, p2 = buf; *p1; ++p1, ++p2) { |
| *p2 = *p1; |
| if (*p2 != ' ') |
| last_non_space = p2; |
| if (++length == POD_NAME_LENGTH) |
| break; |
| } |
| |
| *(last_non_space + 1) = '\n'; |
| return last_non_space - buf + 2; |
| } |
| |
| /* |
| "read" request on "channel" special file. |
| */ |
| static ssize_t pod_get_channel(struct device *dev, |
| struct device_attribute *attr, char *buf) |
| { |
| struct usb_interface *interface = to_usb_interface(dev); |
| struct usb_line6_pod *pod = usb_get_intfdata(interface); |
| return sprintf(buf, "%d\n", pod->channel_num); |
| } |
| |
| /* |
| "write" request on "channel" special file. |
| */ |
| static ssize_t pod_set_channel(struct device *dev, |
| struct device_attribute *attr, |
| const char *buf, size_t count) |
| { |
| struct usb_interface *interface = to_usb_interface(dev); |
| struct usb_line6_pod *pod = usb_get_intfdata(interface); |
| unsigned long value; |
| int ret; |
| |
| ret = strict_strtoul(buf, 10, &value); |
| if (ret) |
| return ret; |
| |
| pod_send_channel(pod, value); |
| return count; |
| } |
| |
| /* |
| "read" request on "name" special file. |
| */ |
| static ssize_t pod_get_name(struct device *dev, struct device_attribute *attr, |
| char *buf) |
| { |
| struct usb_interface *interface = to_usb_interface(dev); |
| struct usb_line6_pod *pod = usb_get_intfdata(interface); |
| return get_name_generic(pod, pod->prog_data.header + POD_NAME_OFFSET, buf); |
| } |
| |
| /* |
| "read" request on "name" special file. |
| */ |
| static ssize_t pod_get_name_buf(struct device *dev, |
| struct device_attribute *attr, char *buf) |
| { |
| struct usb_interface *interface = to_usb_interface(dev); |
| struct usb_line6_pod *pod = usb_get_intfdata(interface); |
| return get_name_generic(pod, pod->prog_data_buf.header + POD_NAME_OFFSET, buf); |
| } |
| |
| /* |
| "read" request on "dump" special file. |
| */ |
| static ssize_t pod_get_dump(struct device *dev, struct device_attribute *attr, |
| char *buf) |
| { |
| struct usb_interface *interface = to_usb_interface(dev); |
| struct usb_line6_pod *pod = usb_get_intfdata(interface); |
| int retval = line6_wait_dump(&pod->dumpreq, 0); |
| if (retval < 0) |
| return retval; |
| memcpy(buf, &pod->prog_data, sizeof(pod->prog_data)); |
| return sizeof(pod->prog_data); |
| } |
| |
| /* |
| "write" request on "dump" special file. |
| */ |
| static ssize_t pod_set_dump(struct device *dev, struct device_attribute *attr, |
| const char *buf, size_t count) |
| { |
| struct usb_interface *interface = to_usb_interface(dev); |
| struct usb_line6_pod *pod = usb_get_intfdata(interface); |
| |
| if (count != sizeof(pod->prog_data)) { |
| dev_err(pod->line6.ifcdev, |
| "data block must be exactly %zu bytes\n", |
| sizeof(pod->prog_data)); |
| return -EINVAL; |
| } |
| |
| pod_dump(pod, buf); |
| return sizeof(pod->prog_data); |
| } |
| |
| /* |
| Request system parameter. |
| @param tuner non-zero, if code refers to a tuner parameter |
| */ |
| static ssize_t pod_get_system_param(struct usb_line6_pod *pod, char *buf, int code, struct ValueWait *param, int tuner, int sign) |
| { |
| char *sysex; |
| int value; |
| static const int size = 1; |
| int retval = 0; |
| DECLARE_WAITQUEUE(wait, current); |
| |
| if (((pod->prog_data.control[POD_tuner] & 0x40) == 0) && tuner) |
| return -ENODEV; |
| |
| /* send value request to tuner: */ |
| param->value = POD_system_invalid; |
| sysex = pod_alloc_sysex_buffer(pod, POD_SYSEX_SYSTEMREQ, size); |
| if (!sysex) |
| return 0; |
| sysex[SYSEX_DATA_OFS] = code; |
| line6_send_sysex_message(&pod->line6, sysex, size); |
| kfree(sysex); |
| |
| /* wait for tuner to respond: */ |
| add_wait_queue(¶m->wait, &wait); |
| current->state = TASK_INTERRUPTIBLE; |
| |
| while (param->value == POD_system_invalid) { |
| if (signal_pending(current)) { |
| retval = -ERESTARTSYS; |
| break; |
| } else |
| schedule(); |
| } |
| |
| current->state = TASK_RUNNING; |
| remove_wait_queue(¶m->wait, &wait); |
| |
| if (retval < 0) |
| return retval; |
| |
| value = sign ? (int)(signed short)param->value : (int)(unsigned short)param->value; |
| return sprintf(buf, "%d\n", value); |
| } |
| |
| /* |
| Send system parameter. |
| @param tuner non-zero, if code refers to a tuner parameter |
| */ |
| static ssize_t pod_set_system_param(struct usb_line6_pod *pod, const char *buf, |
| int count, int code, unsigned short mask, |
| int tuner) |
| { |
| char *sysex; |
| static const int size = 5; |
| unsigned short value; |
| unsigned long result; |
| int ret; |
| |
| if (((pod->prog_data.control[POD_tuner] & 0x40) == 0) && tuner) |
| return -EINVAL; |
| |
| /* send value to tuner: */ |
| sysex = pod_alloc_sysex_buffer(pod, POD_SYSEX_SYSTEM, size); |
| if (!sysex) |
| return 0; |
| |
| ret = strict_strtoul(buf, 10, &result); |
| if (ret) |
| return ret; |
| |
| value = result & mask; |
| sysex[SYSEX_DATA_OFS] = code; |
| sysex[SYSEX_DATA_OFS + 1] = (value >> 12) & 0x0f; |
| sysex[SYSEX_DATA_OFS + 2] = (value >> 8) & 0x0f; |
| sysex[SYSEX_DATA_OFS + 3] = (value >> 4) & 0x0f; |
| sysex[SYSEX_DATA_OFS + 4] = (value ) & 0x0f; |
| line6_send_sysex_message(&pod->line6, sysex, size); |
| kfree(sysex); |
| return count; |
| } |
| |
| /* |
| "read" request on "dump_buf" special file. |
| */ |
| static ssize_t pod_get_dump_buf(struct device *dev, |
| struct device_attribute *attr, char *buf) |
| { |
| struct usb_interface *interface = to_usb_interface(dev); |
| struct usb_line6_pod *pod = usb_get_intfdata(interface); |
| int retval = line6_wait_dump(&pod->dumpreq, 0); |
| if (retval < 0) |
| return retval; |
| memcpy(buf, &pod->prog_data_buf, sizeof(pod->prog_data_buf)); |
| return sizeof(pod->prog_data_buf); |
| } |
| |
| /* |
| "write" request on "dump_buf" special file. |
| */ |
| static ssize_t pod_set_dump_buf(struct device *dev, |
| struct device_attribute *attr, |
| const char *buf, size_t count) |
| { |
| struct usb_interface *interface = to_usb_interface(dev); |
| struct usb_line6_pod *pod = usb_get_intfdata(interface); |
| |
| if (count != sizeof(pod->prog_data)) { |
| dev_err(pod->line6.ifcdev, |
| "data block must be exactly %zu bytes\n", |
| sizeof(pod->prog_data)); |
| return -EINVAL; |
| } |
| |
| memcpy(&pod->prog_data_buf, buf, sizeof(pod->prog_data)); |
| return sizeof(pod->prog_data); |
| } |
| |
| /* |
| "write" request on "finish" special file. |
| */ |
| static ssize_t pod_set_finish(struct device *dev, |
| struct device_attribute *attr, |
| const char *buf, size_t count) |
| { |
| struct usb_interface *interface = to_usb_interface(dev); |
| struct usb_line6_pod *pod = usb_get_intfdata(interface); |
| int size = 0; |
| char *sysex = pod_alloc_sysex_buffer(pod, POD_SYSEX_FINISH, size); |
| if (!sysex) |
| return 0; |
| line6_send_sysex_message(&pod->line6, sysex, size); |
| kfree(sysex); |
| return count; |
| } |
| |
| /* |
| "write" request on "store_channel" special file. |
| */ |
| static ssize_t pod_set_store_channel(struct device *dev, |
| struct device_attribute *attr, |
| const char *buf, size_t count) |
| { |
| return pod_send_store_command(dev, buf, count, 0x0000, 0x00c0); |
| } |
| |
| /* |
| "write" request on "store_effects_setup" special file. |
| */ |
| static ssize_t pod_set_store_effects_setup(struct device *dev, |
| struct device_attribute *attr, |
| const char *buf, size_t count) |
| { |
| return pod_send_store_command(dev, buf, count, 0x0080, 0x0080); |
| } |
| |
| /* |
| "write" request on "store_amp_setup" special file. |
| */ |
| static ssize_t pod_set_store_amp_setup(struct device *dev, |
| struct device_attribute *attr, |
| const char *buf, size_t count) |
| { |
| return pod_send_store_command(dev, buf, count, 0x0040, 0x0100); |
| } |
| |
| /* |
| "write" request on "retrieve_channel" special file. |
| */ |
| static ssize_t pod_set_retrieve_channel(struct device *dev, |
| struct device_attribute *attr, |
| const char *buf, size_t count) |
| { |
| return pod_send_retrieve_command(dev, buf, count, 0x0000, 0x00c0); |
| } |
| |
| /* |
| "write" request on "retrieve_effects_setup" special file. |
| */ |
| static ssize_t pod_set_retrieve_effects_setup(struct device *dev, |
| struct device_attribute *attr, |
| const char *buf, size_t count) |
| { |
| return pod_send_retrieve_command(dev, buf, count, 0x0080, 0x0080); |
| } |
| |
| /* |
| "write" request on "retrieve_amp_setup" special file. |
| */ |
| static ssize_t pod_set_retrieve_amp_setup(struct device *dev, |
| struct device_attribute *attr, |
| const char *buf, size_t count) |
| { |
| return pod_send_retrieve_command(dev, buf, count, 0x0040, 0x0100); |
| } |
| |
| /* |
| "read" request on "dirty" special file. |
| */ |
| static ssize_t pod_get_dirty(struct device *dev, struct device_attribute *attr, |
| char *buf) |
| { |
| struct usb_interface *interface = to_usb_interface(dev); |
| struct usb_line6_pod *pod = usb_get_intfdata(interface); |
| buf[0] = pod->dirty ? '1' : '0'; |
| buf[1] = '\n'; |
| return 2; |
| } |
| |
| /* |
| "read" request on "midi_postprocess" special file. |
| */ |
| static ssize_t pod_get_midi_postprocess(struct device *dev, |
| struct device_attribute *attr, |
| char *buf) |
| { |
| struct usb_interface *interface = to_usb_interface(dev); |
| struct usb_line6_pod *pod = usb_get_intfdata(interface); |
| return sprintf(buf, "%d\n", pod->midi_postprocess); |
| } |
| |
| /* |
| "write" request on "midi_postprocess" special file. |
| */ |
| static ssize_t pod_set_midi_postprocess(struct device *dev, |
| struct device_attribute *attr, |
| const char *buf, size_t count) |
| { |
| struct usb_interface *interface = to_usb_interface(dev); |
| struct usb_line6_pod *pod = usb_get_intfdata(interface); |
| unsigned long value; |
| int ret; |
| |
| ret = strict_strtoul(buf, 10, &value); |
| if (ret) |
| return ret; |
| |
| pod->midi_postprocess = value ? 1 : 0; |
| return count; |
| } |
| |
| /* |
| "read" request on "serial_number" special file. |
| */ |
| static ssize_t pod_get_serial_number(struct device *dev, |
| struct device_attribute *attr, char *buf) |
| { |
| struct usb_interface *interface = to_usb_interface(dev); |
| struct usb_line6_pod *pod = usb_get_intfdata(interface); |
| return sprintf(buf, "%d\n", pod->serial_number); |
| } |
| |
| /* |
| "read" request on "firmware_version" special file. |
| */ |
| static ssize_t pod_get_firmware_version(struct device *dev, |
| struct device_attribute *attr, |
| char *buf) |
| { |
| struct usb_interface *interface = to_usb_interface(dev); |
| struct usb_line6_pod *pod = usb_get_intfdata(interface); |
| return sprintf(buf, "%d.%02d\n", pod->firmware_version / 100, |
| pod->firmware_version % 100); |
| } |
| |
| /* |
| "read" request on "device_id" special file. |
| */ |
| static ssize_t pod_get_device_id(struct device *dev, |
| struct device_attribute *attr, char *buf) |
| { |
| struct usb_interface *interface = to_usb_interface(dev); |
| struct usb_line6_pod *pod = usb_get_intfdata(interface); |
| return sprintf(buf, "%d\n", pod->device_id); |
| } |
| |
| /* |
| "read" request on "clip" special file. |
| */ |
| static ssize_t pod_wait_for_clip(struct device *dev, |
| struct device_attribute *attr, char *buf) |
| { |
| struct usb_interface *interface = to_usb_interface(dev); |
| struct usb_line6_pod *pod = usb_get_intfdata(interface); |
| int err = 0; |
| DECLARE_WAITQUEUE(wait, current); |
| pod->clipping.value = 0; |
| add_wait_queue(&pod->clipping.wait, &wait); |
| current->state = TASK_INTERRUPTIBLE; |
| |
| while (pod->clipping.value == 0) { |
| if (signal_pending(current)) { |
| err = -ERESTARTSYS; |
| break; |
| } else |
| schedule(); |
| } |
| |
| current->state = TASK_RUNNING; |
| remove_wait_queue(&pod->clipping.wait, &wait); |
| return err; |
| } |
| |
| #define POD_GET_SYSTEM_PARAM(code, tuner, sign) \ |
| static ssize_t pod_get_ ## code(struct device *dev, \ |
| struct device_attribute *attr, char *buf) \ |
| { \ |
| struct usb_interface *interface = to_usb_interface(dev); \ |
| struct usb_line6_pod *pod = usb_get_intfdata(interface); \ |
| return pod_get_system_param(pod, buf, POD_ ## code, &pod->code, \ |
| tuner, sign); \ |
| } |
| |
| #define POD_GET_SET_SYSTEM_PARAM(code, mask, tuner, sign) \ |
| POD_GET_SYSTEM_PARAM(code, tuner, sign) \ |
| static ssize_t pod_set_ ## code(struct device *dev, \ |
| struct device_attribute *attr, \ |
| const char *buf, size_t count) \ |
| { \ |
| struct usb_interface *interface = to_usb_interface(dev); \ |
| struct usb_line6_pod *pod = usb_get_intfdata(interface); \ |
| return pod_set_system_param(pod, buf, count, POD_ ## code, mask, \ |
| tuner); \ |
| } |
| |
| POD_GET_SET_SYSTEM_PARAM(monitor_level, 0xffff, 0, 0); |
| POD_GET_SET_SYSTEM_PARAM(routing, 0x0003, 0, 0); |
| POD_GET_SET_SYSTEM_PARAM(tuner_mute, 0x0001, 1, 0); |
| POD_GET_SET_SYSTEM_PARAM(tuner_freq, 0xffff, 1, 0); |
| POD_GET_SYSTEM_PARAM(tuner_note, 1, 1); |
| POD_GET_SYSTEM_PARAM(tuner_pitch, 1, 1); |
| |
| #undef GET_SET_SYSTEM_PARAM |
| #undef GET_SYSTEM_PARAM |
| |
| /* POD special files: */ |
| static DEVICE_ATTR(channel, S_IWUSR | S_IRUGO, pod_get_channel, pod_set_channel); |
| static DEVICE_ATTR(clip, S_IRUGO, pod_wait_for_clip, line6_nop_write); |
| static DEVICE_ATTR(device_id, S_IRUGO, pod_get_device_id, line6_nop_write); |
| static DEVICE_ATTR(dirty, S_IRUGO, pod_get_dirty, line6_nop_write); |
| static DEVICE_ATTR(dump, S_IWUSR | S_IRUGO, pod_get_dump, pod_set_dump); |
| static DEVICE_ATTR(dump_buf, S_IWUSR | S_IRUGO, pod_get_dump_buf, pod_set_dump_buf); |
| static DEVICE_ATTR(finish, S_IWUSR, line6_nop_read, pod_set_finish); |
| static DEVICE_ATTR(firmware_version, S_IRUGO, pod_get_firmware_version, line6_nop_write); |
| static DEVICE_ATTR(midi_postprocess, S_IWUSR | S_IRUGO, pod_get_midi_postprocess, pod_set_midi_postprocess); |
| static DEVICE_ATTR(monitor_level, S_IWUSR | S_IRUGO, pod_get_monitor_level, pod_set_monitor_level); |
| static DEVICE_ATTR(name, S_IRUGO, pod_get_name, line6_nop_write); |
| static DEVICE_ATTR(name_buf, S_IRUGO, pod_get_name_buf, line6_nop_write); |
| static DEVICE_ATTR(retrieve_amp_setup, S_IWUSR, line6_nop_read, pod_set_retrieve_amp_setup); |
| static DEVICE_ATTR(retrieve_channel, S_IWUSR, line6_nop_read, pod_set_retrieve_channel); |
| static DEVICE_ATTR(retrieve_effects_setup, S_IWUSR, line6_nop_read, pod_set_retrieve_effects_setup); |
| static DEVICE_ATTR(routing, S_IWUSR | S_IRUGO, pod_get_routing, pod_set_routing); |
| static DEVICE_ATTR(serial_number, S_IRUGO, pod_get_serial_number, line6_nop_write); |
| static DEVICE_ATTR(store_amp_setup, S_IWUSR, line6_nop_read, pod_set_store_amp_setup); |
| static DEVICE_ATTR(store_channel, S_IWUSR, line6_nop_read, pod_set_store_channel); |
| static DEVICE_ATTR(store_effects_setup, S_IWUSR, line6_nop_read, pod_set_store_effects_setup); |
| static DEVICE_ATTR(tuner_freq, S_IWUSR | S_IRUGO, pod_get_tuner_freq, pod_set_tuner_freq); |
| static DEVICE_ATTR(tuner_mute, S_IWUSR | S_IRUGO, pod_get_tuner_mute, pod_set_tuner_mute); |
| static DEVICE_ATTR(tuner_note, S_IRUGO, pod_get_tuner_note, line6_nop_write); |
| static DEVICE_ATTR(tuner_pitch, S_IRUGO, pod_get_tuner_pitch, line6_nop_write); |
| |
| #if CREATE_RAW_FILE |
| static DEVICE_ATTR(raw, S_IWUSR, line6_nop_read, line6_set_raw); |
| #endif |
| |
| /* |
| POD destructor. |
| */ |
| static void pod_destruct(struct usb_interface *interface) |
| { |
| struct usb_line6_pod *pod = usb_get_intfdata(interface); |
| struct usb_line6 *line6; |
| |
| if (pod == NULL) |
| return; |
| line6 = &pod->line6; |
| if (line6 == NULL) |
| return; |
| line6_cleanup_audio(line6); |
| |
| /* free dump request data: */ |
| line6_dumpreq_destruct(&pod->dumpreq); |
| |
| kfree(pod->buffer_versionreq); |
| } |
| |
| /* |
| Create sysfs entries. |
| */ |
| static int pod_create_files2(struct device *dev) |
| { |
| int err; |
| |
| CHECK_RETURN(device_create_file(dev, &dev_attr_channel)); |
| CHECK_RETURN(device_create_file(dev, &dev_attr_clip)); |
| CHECK_RETURN(device_create_file(dev, &dev_attr_device_id)); |
| CHECK_RETURN(device_create_file(dev, &dev_attr_dirty)); |
| CHECK_RETURN(device_create_file(dev, &dev_attr_dump)); |
| CHECK_RETURN(device_create_file(dev, &dev_attr_dump_buf)); |
| CHECK_RETURN(device_create_file(dev, &dev_attr_finish)); |
| CHECK_RETURN(device_create_file(dev, &dev_attr_firmware_version)); |
| CHECK_RETURN(device_create_file(dev, &dev_attr_midi_postprocess)); |
| CHECK_RETURN(device_create_file(dev, &dev_attr_monitor_level)); |
| CHECK_RETURN(device_create_file(dev, &dev_attr_name)); |
| CHECK_RETURN(device_create_file(dev, &dev_attr_name_buf)); |
| CHECK_RETURN(device_create_file(dev, &dev_attr_retrieve_amp_setup)); |
| CHECK_RETURN(device_create_file(dev, &dev_attr_retrieve_channel)); |
| CHECK_RETURN(device_create_file(dev, &dev_attr_retrieve_effects_setup)); |
| CHECK_RETURN(device_create_file(dev, &dev_attr_routing)); |
| CHECK_RETURN(device_create_file(dev, &dev_attr_serial_number)); |
| CHECK_RETURN(device_create_file(dev, &dev_attr_store_amp_setup)); |
| CHECK_RETURN(device_create_file(dev, &dev_attr_store_channel)); |
| CHECK_RETURN(device_create_file(dev, &dev_attr_store_effects_setup)); |
| CHECK_RETURN(device_create_file(dev, &dev_attr_tuner_freq)); |
| CHECK_RETURN(device_create_file(dev, &dev_attr_tuner_mute)); |
| CHECK_RETURN(device_create_file(dev, &dev_attr_tuner_note)); |
| CHECK_RETURN(device_create_file(dev, &dev_attr_tuner_pitch)); |
| |
| #if CREATE_RAW_FILE |
| CHECK_RETURN(device_create_file(dev, &dev_attr_raw)); |
| #endif |
| |
| return 0; |
| } |
| |
| /* |
| Init POD device. |
| */ |
| int pod_init(struct usb_interface *interface, struct usb_line6_pod *pod) |
| { |
| int err; |
| struct usb_line6 *line6 = &pod->line6; |
| |
| if ((interface == NULL) || (pod == NULL)) |
| return -ENODEV; |
| |
| pod->channel_num = 255; |
| |
| /* initialize wait queues: */ |
| init_waitqueue_head(&pod->monitor_level.wait); |
| init_waitqueue_head(&pod->routing.wait); |
| init_waitqueue_head(&pod->tuner_mute.wait); |
| init_waitqueue_head(&pod->tuner_freq.wait); |
| init_waitqueue_head(&pod->tuner_note.wait); |
| init_waitqueue_head(&pod->tuner_pitch.wait); |
| init_waitqueue_head(&pod->clipping.wait); |
| |
| memset(pod->param_dirty, 0xff, sizeof(pod->param_dirty)); |
| |
| /* initialize USB buffers: */ |
| err = line6_dumpreq_init(&pod->dumpreq, pod_request_channel, |
| sizeof(pod_request_channel)); |
| if (err < 0) { |
| dev_err(&interface->dev, "Out of memory\n"); |
| pod_destruct(interface); |
| return -ENOMEM; |
| } |
| |
| pod->buffer_versionreq = kmemdup(pod_request_version, |
| sizeof(pod_request_version), |
| GFP_KERNEL); |
| |
| if (pod->buffer_versionreq == NULL) { |
| dev_err(&interface->dev, "Out of memory\n"); |
| pod_destruct(interface); |
| return -ENOMEM; |
| } |
| |
| /* create sysfs entries: */ |
| err = pod_create_files2(&interface->dev); |
| if (err < 0) { |
| pod_destruct(interface); |
| return err; |
| } |
| |
| /* initialize audio system: */ |
| err = line6_init_audio(line6); |
| if (err < 0) { |
| pod_destruct(interface); |
| return err; |
| } |
| |
| /* initialize MIDI subsystem: */ |
| err = line6_init_midi(line6); |
| if (err < 0) { |
| pod_destruct(interface); |
| return err; |
| } |
| |
| /* initialize PCM subsystem: */ |
| err = line6_init_pcm(line6, &pod_pcm_properties); |
| if (err < 0) { |
| pod_destruct(interface); |
| return err; |
| } |
| |
| /* register audio system: */ |
| err = line6_register_audio(line6); |
| if (err < 0) { |
| pod_destruct(interface); |
| return err; |
| } |
| |
| if (pod->line6.properties->capabilities & LINE6_BIT_CONTROL) { |
| /* query some data: */ |
| line6_startup_delayed(&pod->dumpreq, POD_STARTUP_DELAY, |
| pod_startup_timeout, pod); |
| line6_read_serial_number(&pod->line6, &pod->serial_number); |
| } |
| |
| return 0; |
| } |
| |
| /* |
| POD device disconnected. |
| */ |
| void pod_disconnect(struct usb_interface *interface) |
| { |
| struct usb_line6_pod *pod; |
| |
| if (interface == NULL) |
| return; |
| pod = usb_get_intfdata(interface); |
| |
| if (pod != NULL) { |
| struct snd_line6_pcm *line6pcm = pod->line6.line6pcm; |
| struct device *dev = &interface->dev; |
| |
| if (line6pcm != NULL) { |
| unlink_wait_clear_audio_out_urbs(line6pcm); |
| unlink_wait_clear_audio_in_urbs(line6pcm); |
| } |
| |
| if (dev != NULL) { |
| /* remove sysfs entries: */ |
| if (pod->versionreq_ok) |
| pod_remove_files(pod->firmware_version, pod->line6.properties->device_bit, dev); |
| |
| device_remove_file(dev, &dev_attr_channel); |
| device_remove_file(dev, &dev_attr_clip); |
| device_remove_file(dev, &dev_attr_device_id); |
| device_remove_file(dev, &dev_attr_dirty); |
| device_remove_file(dev, &dev_attr_dump); |
| device_remove_file(dev, &dev_attr_dump_buf); |
| device_remove_file(dev, &dev_attr_finish); |
| device_remove_file(dev, &dev_attr_firmware_version); |
| device_remove_file(dev, &dev_attr_midi_postprocess); |
| device_remove_file(dev, &dev_attr_monitor_level); |
| device_remove_file(dev, &dev_attr_name); |
| device_remove_file(dev, &dev_attr_name_buf); |
| device_remove_file(dev, &dev_attr_retrieve_amp_setup); |
| device_remove_file(dev, &dev_attr_retrieve_channel); |
| device_remove_file(dev, &dev_attr_retrieve_effects_setup); |
| device_remove_file(dev, &dev_attr_routing); |
| device_remove_file(dev, &dev_attr_serial_number); |
| device_remove_file(dev, &dev_attr_store_amp_setup); |
| device_remove_file(dev, &dev_attr_store_channel); |
| device_remove_file(dev, &dev_attr_store_effects_setup); |
| device_remove_file(dev, &dev_attr_tuner_freq); |
| device_remove_file(dev, &dev_attr_tuner_mute); |
| device_remove_file(dev, &dev_attr_tuner_note); |
| device_remove_file(dev, &dev_attr_tuner_pitch); |
| |
| #if CREATE_RAW_FILE |
| device_remove_file(dev, &dev_attr_raw); |
| #endif |
| } |
| } |
| |
| pod_destruct(interface); |
| } |