diff options
Diffstat (limited to 'drivers/staging/line6/pod.c')
| -rw-r--r-- | drivers/staging/line6/pod.c | 1100 |
1 files changed, 1100 insertions, 0 deletions
diff --git a/drivers/staging/line6/pod.c b/drivers/staging/line6/pod.c new file mode 100644 index 000000000000..154985aeb698 --- /dev/null +++ b/drivers/staging/line6/pod.c @@ -0,0 +1,1100 @@ +/* + * 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 "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 = 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)); +} + +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 20) +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); +#else +static void pod_create_files_work(void *work) +{ + struct usb_line6_pod *pod = (struct usb_line6_pod *)work; +#endif + + 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; + sysex[SYSEX_DATA_OFS] = 5; /* Don't know what this is good for, but PODxt Pro transmits it, so we also do... */ + 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: */ +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 20) + INIT_WORK(&pod->create_files_work, pod_create_files_work); +#else + INIT_WORK(&pod->create_files_work, pod_create_files_work, pod); +#endif + 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). +*/ +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 void pod_resolve(const char *buf, short block0, short block1, unsigned char *location) +{ + int value = simple_strtoul(buf, NULL, 10); + short block = (value < 0x40) ? block0 : block1; + value &= 0x3f; + location[0] = block >> 7; + location[1] = value | (block & 0x7f); +} + +/* + 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 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() */ + pod_resolve(buf, block0, block1, sysex + SYSEX_DATA_OFS + 1); + 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 size = 4; + char *sysex = pod_alloc_sysex_buffer(pod, POD_SYSEX_DUMPMEM, size); + if(!sysex) return 0; + + pod_resolve(buf, block0, block1, sysex + SYSEX_DATA_OFS); + 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, DEVICE_ATTRIBUTE 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, DEVICE_ATTRIBUTE const char *buf, size_t count) +{ + struct usb_interface *interface = to_usb_interface(dev); + struct usb_line6_pod *pod = usb_get_intfdata(interface); + int value = simple_strtoul(buf, NULL, 10); + pod_send_channel(pod, value); + return count; +} + +/* + "read" request on "name" special file. +*/ +static ssize_t pod_get_name(struct device *dev, DEVICE_ATTRIBUTE 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, DEVICE_ATTRIBUTE 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, DEVICE_ATTRIBUTE 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, DEVICE_ATTRIBUTE 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 %d bytes\n", + (int)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; + + 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; + value = simple_strtoul(buf, NULL, 10) & 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, DEVICE_ATTRIBUTE 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, DEVICE_ATTRIBUTE 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 %d bytes\n", + (int)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, DEVICE_ATTRIBUTE 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, DEVICE_ATTRIBUTE 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, DEVICE_ATTRIBUTE 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, DEVICE_ATTRIBUTE 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, DEVICE_ATTRIBUTE 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, DEVICE_ATTRIBUTE 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, DEVICE_ATTRIBUTE 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, DEVICE_ATTRIBUTE 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, DEVICE_ATTRIBUTE 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, DEVICE_ATTRIBUTE const char *buf, size_t count) +{ + struct usb_interface *interface = to_usb_interface(dev); + struct usb_line6_pod *pod = usb_get_intfdata(interface); + int value = simple_strtoul(buf, NULL, 10); + 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, DEVICE_ATTRIBUTE 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, DEVICE_ATTRIBUTE 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, DEVICE_ATTRIBUTE 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, DEVICE_ATTRIBUTE 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, DEVICE_ATTRIBUTE 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, DEVICE_ATTRIBUTE 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_IWUGO | 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_IWUGO | S_IRUGO, pod_get_dump, pod_set_dump); +static DEVICE_ATTR(dump_buf, S_IWUGO | S_IRUGO, pod_get_dump_buf, pod_set_dump_buf); +static DEVICE_ATTR(finish, S_IWUGO, 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_IWUGO | S_IRUGO, pod_get_midi_postprocess, pod_set_midi_postprocess); +static DEVICE_ATTR(monitor_level, S_IWUGO | 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_IWUGO, line6_nop_read, pod_set_retrieve_amp_setup); +static DEVICE_ATTR(retrieve_channel, S_IWUGO, line6_nop_read, pod_set_retrieve_channel); +static DEVICE_ATTR(retrieve_effects_setup, S_IWUGO, line6_nop_read, pod_set_retrieve_effects_setup); +static DEVICE_ATTR(routing, S_IWUGO | 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_IWUGO, line6_nop_read, pod_set_store_amp_setup); +static DEVICE_ATTR(store_channel, S_IWUGO, line6_nop_read, pod_set_store_channel); +static DEVICE_ATTR(store_effects_setup, S_IWUGO, line6_nop_read, pod_set_store_effects_setup); +static DEVICE_ATTR(tuner_freq, S_IWUGO | S_IRUGO, pod_get_tuner_freq, pod_set_tuner_freq); +static DEVICE_ATTR(tuner_mute, S_IWUGO | 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_IWUGO, 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); + + if(pod->buffer_versionreq) kfree(pod->buffer_versionreq); +} + +/* + Create sysfs entries. +*/ +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 = kmalloc(sizeof(pod_request_version), GFP_KERNEL); + + if(pod->buffer_versionreq == NULL) { + dev_err(&interface->dev, "Out of memory\n"); + pod_destruct(interface); + return -ENOMEM; + } + + memcpy(pod->buffer_versionreq, pod_request_version, sizeof(pod_request_version)); + + /* create sysfs entries: */ + if((err = pod_create_files2(&interface->dev)) < 0) { + pod_destruct(interface); + return err; + } + + /* initialize audio system: */ + if((err = line6_init_audio(line6)) < 0) { + pod_destruct(interface); + return err; + } + + /* initialize MIDI subsystem: */ + if((err = line6_init_midi(line6)) < 0) { + pod_destruct(interface); + return err; + } + + /* initialize PCM subsystem: */ + if((err = line6_init_pcm(line6, &pod_pcm_properties)) < 0) { + pod_destruct(interface); + return err; + } + + /* register audio system: */ + if((err = line6_register_audio(line6)) < 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); +} |