diff options
Diffstat (limited to 'sound')
32 files changed, 5785 insertions, 4 deletions
diff --git a/sound/firewire/fireworks/fireworks_transaction.c b/sound/firewire/fireworks/fireworks_transaction.c index 255dabc6fc33..2a85e4209f0b 100644 --- a/sound/firewire/fireworks/fireworks_transaction.c +++ b/sound/firewire/fireworks/fireworks_transaction.c @@ -124,7 +124,7 @@ copy_resp_to_buf(struct snd_efw *efw, void *data, size_t length, int *rcode) spin_lock_irq(&efw->lock); t = (struct snd_efw_transaction *)data; - length = min_t(size_t, t->length * sizeof(t->length), length); + length = min_t(size_t, be32_to_cpu(t->length) * sizeof(u32), length); if (efw->push_ptr < efw->pull_ptr) capacity = (unsigned int)(efw->pull_ptr - efw->push_ptr); diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c index 5f13d2d18079..b422e406a9cb 100644 --- a/sound/pci/hda/patch_hdmi.c +++ b/sound/pci/hda/patch_hdmi.c @@ -3353,6 +3353,7 @@ static const struct hda_codec_preset snd_hda_preset_hdmi[] = { { .id = 0x10de0067, .name = "MCP67 HDMI", .patch = patch_nvhdmi_2ch }, { .id = 0x10de0070, .name = "GPU 70 HDMI/DP", .patch = patch_nvhdmi }, { .id = 0x10de0071, .name = "GPU 71 HDMI/DP", .patch = patch_nvhdmi }, +{ .id = 0x10de0072, .name = "GPU 72 HDMI/DP", .patch = patch_nvhdmi }, { .id = 0x10de8001, .name = "MCP73 HDMI", .patch = patch_nvhdmi_2ch }, { .id = 0x11069f80, .name = "VX900 HDMI/DP", .patch = patch_via_hdmi }, { .id = 0x11069f81, .name = "VX900 HDMI/DP", .patch = patch_via_hdmi }, @@ -3413,6 +3414,7 @@ MODULE_ALIAS("snd-hda-codec-id:10de0060"); MODULE_ALIAS("snd-hda-codec-id:10de0067"); MODULE_ALIAS("snd-hda-codec-id:10de0070"); MODULE_ALIAS("snd-hda-codec-id:10de0071"); +MODULE_ALIAS("snd-hda-codec-id:10de0072"); MODULE_ALIAS("snd-hda-codec-id:10de8001"); MODULE_ALIAS("snd-hda-codec-id:11069f80"); MODULE_ALIAS("snd-hda-codec-id:11069f81"); diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c index 4f6413e01c13..605d14003d25 100644 --- a/sound/pci/hda/patch_sigmatel.c +++ b/sound/pci/hda/patch_sigmatel.c @@ -568,9 +568,9 @@ static void stac_store_hints(struct hda_codec *codec) spec->gpio_mask; } if (get_int_hint(codec, "gpio_dir", &spec->gpio_dir)) - spec->gpio_mask &= spec->gpio_mask; - if (get_int_hint(codec, "gpio_data", &spec->gpio_data)) spec->gpio_dir &= spec->gpio_mask; + if (get_int_hint(codec, "gpio_data", &spec->gpio_data)) + spec->gpio_data &= spec->gpio_mask; if (get_int_hint(codec, "eapd_mask", &spec->eapd_mask)) spec->eapd_mask &= spec->gpio_mask; if (get_int_hint(codec, "gpio_mute", &spec->gpio_mute)) diff --git a/sound/usb/Kconfig b/sound/usb/Kconfig index d393153c474f..a452ad7cec40 100644 --- a/sound/usb/Kconfig +++ b/sound/usb/Kconfig @@ -160,5 +160,7 @@ config SND_BCD2000 To compile this driver as a module, choose M here: the module will be called snd-bcd2000. +source "sound/usb/line6/Kconfig" + endif # SND_USB diff --git a/sound/usb/Makefile b/sound/usb/Makefile index bcee4060fd18..54045b745d11 100644 --- a/sound/usb/Makefile +++ b/sound/usb/Makefile @@ -25,3 +25,4 @@ obj-$(CONFIG_SND_USB_USX2Y) += snd-usbmidi-lib.o obj-$(CONFIG_SND_USB_US122L) += snd-usbmidi-lib.o obj-$(CONFIG_SND) += misc/ usx2y/ caiaq/ 6fire/ hiface/ bcd2000/ +obj-$(CONFIG_LINE6_USB) += line6/ diff --git a/sound/usb/caiaq/audio.c b/sound/usb/caiaq/audio.c index 272844746135..327f8642ca80 100644 --- a/sound/usb/caiaq/audio.c +++ b/sound/usb/caiaq/audio.c @@ -816,7 +816,7 @@ int snd_usb_caiaq_audio_init(struct snd_usb_caiaqdev *cdev) return -EINVAL; } - if (cdev->n_streams < 2) { + if (cdev->n_streams < 1) { dev_err(dev, "bogus number of streams: %d\n", cdev->n_streams); return -EINVAL; } diff --git a/sound/usb/line6/Kconfig b/sound/usb/line6/Kconfig new file mode 100644 index 000000000000..4f1219b4c692 --- /dev/null +++ b/sound/usb/line6/Kconfig @@ -0,0 +1,38 @@ +menuconfig LINE6_USB + tristate "Line6 USB support" + depends on USB && SND + select SND_RAWMIDI + select SND_PCM + help + This is a driver for the guitar amp, cab, and effects modeller + PODxt Pro by Line6 (and similar devices), supporting the + following features: + * Reading/writing individual parameters + * Reading/writing complete channel, effects setup, and amp + setup data + * Channel switching + * Virtual MIDI interface + * Tuner access + * Playback/capture/mixer device for any ALSA-compatible PCM + audio application + * Signal routing (record clean/processed guitar signal, + re-amping) + + Preliminary support for the Variax Workbench and TonePort + devices is included. + +if LINE6_USB + +config LINE6_USB_IMPULSE_RESPONSE + bool "measure impulse response" + default n + help + Say Y here to add code to measure the impulse response of a Line6 + device. This is more accurate than user-space methods since it + bypasses any PCM data buffering (e.g., by ALSA or jack). This is + useful for assessing the performance of new devices, but is not + required for normal operation. + + If unsure, say N. + +endif # LINE6_USB diff --git a/sound/usb/line6/Makefile b/sound/usb/line6/Makefile new file mode 100644 index 000000000000..ae5c374b0f87 --- /dev/null +++ b/sound/usb/line6/Makefile @@ -0,0 +1,14 @@ +obj-$(CONFIG_LINE6_USB) += line6usb.o + +line6usb-y := \ + audio.o \ + capture.o \ + driver.o \ + midi.o \ + midibuf.o \ + pcm.o \ + playback.o \ + pod.o \ + toneport.o \ + variax.o \ + podhd.o diff --git a/sound/usb/line6/audio.c b/sound/usb/line6/audio.c new file mode 100644 index 000000000000..171d80c1b020 --- /dev/null +++ b/sound/usb/line6/audio.c @@ -0,0 +1,71 @@ +/* + * Line6 Linux USB driver - 0.9.1beta + * + * Copyright (C) 2004-2010 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 <sound/core.h> +#include <sound/initval.h> +#include <linux/export.h> + +#include "driver.h" +#include "audio.h" + +/* + Initialize the Line6 USB audio system. +*/ +int line6_init_audio(struct usb_line6 *line6) +{ + struct snd_card *card; + int err; + + err = snd_card_new(line6->ifcdev, + SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1, + THIS_MODULE, 0, &card); + if (err < 0) + return err; + + line6->card = card; + + strcpy(card->id, line6->properties->id); + strcpy(card->driver, DRIVER_NAME); + strcpy(card->shortname, line6->properties->name); + /* longname is 80 chars - see asound.h */ + sprintf(card->longname, "Line6 %s at USB %s", line6->properties->name, + dev_name(line6->ifcdev)); + return 0; +} + +/* + Register the Line6 USB audio system. +*/ +int line6_register_audio(struct usb_line6 *line6) +{ + int err; + + err = snd_card_register(line6->card); + if (err < 0) + return err; + + return 0; +} + +/* + Cleanup the Line6 USB audio system. +*/ +void line6_cleanup_audio(struct usb_line6 *line6) +{ + struct snd_card *card = line6->card; + + if (card == NULL) + return; + + snd_card_disconnect(card); + snd_card_free(card); + line6->card = NULL; +} diff --git a/sound/usb/line6/audio.h b/sound/usb/line6/audio.h new file mode 100644 index 000000000000..5f8a09a0fa95 --- /dev/null +++ b/sound/usb/line6/audio.h @@ -0,0 +1,21 @@ +/* + * Line6 Linux USB driver - 0.9.1beta + * + * Copyright (C) 2004-2010 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. + * + */ + +#ifndef AUDIO_H +#define AUDIO_H + +#include "driver.h" + +extern void line6_cleanup_audio(struct usb_line6 *); +extern int line6_init_audio(struct usb_line6 *); +extern int line6_register_audio(struct usb_line6 *); + +#endif diff --git a/sound/usb/line6/capture.c b/sound/usb/line6/capture.c new file mode 100644 index 000000000000..f24c7c5e0a3e --- /dev/null +++ b/sound/usb/line6/capture.c @@ -0,0 +1,433 @@ +/* + * Line6 Linux USB driver - 0.9.1beta + * + * Copyright (C) 2004-2010 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 <linux/slab.h> +#include <sound/core.h> +#include <sound/pcm.h> +#include <sound/pcm_params.h> + +#include "audio.h" +#include "capture.h" +#include "driver.h" +#include "pcm.h" +#include "pod.h" + +/* + Find a free URB and submit it. +*/ +static int submit_audio_in_urb(struct snd_line6_pcm *line6pcm) +{ + int index; + unsigned long flags; + int i, urb_size; + int ret; + struct urb *urb_in; + + spin_lock_irqsave(&line6pcm->lock_audio_in, flags); + index = + find_first_zero_bit(&line6pcm->active_urb_in, LINE6_ISO_BUFFERS); + + if (index < 0 || index >= LINE6_ISO_BUFFERS) { + spin_unlock_irqrestore(&line6pcm->lock_audio_in, flags); + dev_err(line6pcm->line6->ifcdev, "no free URB found\n"); + return -EINVAL; + } + + urb_in = line6pcm->urb_audio_in[index]; + urb_size = 0; + + for (i = 0; i < LINE6_ISO_PACKETS; ++i) { + struct usb_iso_packet_descriptor *fin = + &urb_in->iso_frame_desc[i]; + fin->offset = urb_size; + fin->length = line6pcm->max_packet_size; + urb_size += line6pcm->max_packet_size; + } + + urb_in->transfer_buffer = + line6pcm->buffer_in + + index * LINE6_ISO_PACKETS * line6pcm->max_packet_size; + urb_in->transfer_buffer_length = urb_size; + urb_in->context = line6pcm; + + ret = usb_submit_urb(urb_in, GFP_ATOMIC); + + if (ret == 0) + set_bit(index, &line6pcm->active_urb_in); + else + dev_err(line6pcm->line6->ifcdev, + "URB in #%d submission failed (%d)\n", index, ret); + + spin_unlock_irqrestore(&line6pcm->lock_audio_in, flags); + return 0; +} + +/* + Submit all currently available capture URBs. +*/ +int line6_submit_audio_in_all_urbs(struct snd_line6_pcm *line6pcm) +{ + int ret, i; + + for (i = 0; i < LINE6_ISO_BUFFERS; ++i) { + ret = submit_audio_in_urb(line6pcm); + if (ret < 0) + return ret; + } + + return 0; +} + +/* + Unlink all currently active capture URBs. +*/ +void line6_unlink_audio_in_urbs(struct snd_line6_pcm *line6pcm) +{ + unsigned int i; + + for (i = LINE6_ISO_BUFFERS; i--;) { + if (test_bit(i, &line6pcm->active_urb_in)) { + if (!test_and_set_bit(i, &line6pcm->unlink_urb_in)) { + struct urb *u = line6pcm->urb_audio_in[i]; + + usb_unlink_urb(u); + } + } + } +} + +/* + Wait until unlinking of all currently active capture URBs has been + finished. +*/ +void line6_wait_clear_audio_in_urbs(struct snd_line6_pcm *line6pcm) +{ + int timeout = HZ; + unsigned int i; + int alive; + + do { + alive = 0; + for (i = LINE6_ISO_BUFFERS; i--;) { + if (test_bit(i, &line6pcm->active_urb_in)) + alive++; + } + if (!alive) + break; + set_current_state(TASK_UNINTERRUPTIBLE); + schedule_timeout(1); + } while (--timeout > 0); + if (alive) + snd_printk(KERN_ERR "timeout: still %d active urbs..\n", alive); +} + +/* + Unlink all currently active capture URBs, and wait for finishing. +*/ +void line6_unlink_wait_clear_audio_in_urbs(struct snd_line6_pcm *line6pcm) +{ + line6_unlink_audio_in_urbs(line6pcm); + line6_wait_clear_audio_in_urbs(line6pcm); +} + +/* + Copy data into ALSA capture buffer. +*/ +void line6_capture_copy(struct snd_line6_pcm *line6pcm, char *fbuf, int fsize) +{ + struct snd_pcm_substream *substream = + get_substream(line6pcm, SNDRV_PCM_STREAM_CAPTURE); + struct snd_pcm_runtime *runtime = substream->runtime; + const int bytes_per_frame = line6pcm->properties->bytes_per_frame; + int frames = fsize / bytes_per_frame; + + if (runtime == NULL) + return; + + if (line6pcm->pos_in_done + frames > runtime->buffer_size) { + /* + The transferred area goes over buffer boundary, + copy two separate chunks. + */ + int len; + + len = runtime->buffer_size - line6pcm->pos_in_done; + + if (len > 0) { + memcpy(runtime->dma_area + + line6pcm->pos_in_done * bytes_per_frame, fbuf, + len * bytes_per_frame); + memcpy(runtime->dma_area, fbuf + len * bytes_per_frame, + (frames - len) * bytes_per_frame); + } else { + /* this is somewhat paranoid */ + dev_err(line6pcm->line6->ifcdev, + "driver bug: len = %d\n", len); + } + } else { + /* copy single chunk */ + memcpy(runtime->dma_area + + line6pcm->pos_in_done * bytes_per_frame, fbuf, fsize); + } + + line6pcm->pos_in_done += frames; + if (line6pcm->pos_in_done >= runtime->buffer_size) + line6pcm->pos_in_done -= runtime->buffer_size; +} + +void line6_capture_check_period(struct snd_line6_pcm *line6pcm, int length) +{ + struct snd_pcm_substream *substream = + get_substream(line6pcm, SNDRV_PCM_STREAM_CAPTURE); + + line6pcm->bytes_in += length; + if (line6pcm->bytes_in >= line6pcm->period_in) { + line6pcm->bytes_in %= line6pcm->period_in; + snd_pcm_period_elapsed(substream); + } +} + +void line6_free_capture_buffer(struct snd_line6_pcm *line6pcm) +{ + kfree(line6pcm->buffer_in); + line6pcm->buffer_in = NULL; +} + +/* + * Callback for completed capture URB. + */ +static void audio_in_callback(struct urb *urb) +{ + int i, index, length = 0, shutdown = 0; + unsigned long flags; + + struct snd_line6_pcm *line6pcm = (struct snd_line6_pcm *)urb->context; + + line6pcm->last_frame_in = urb->start_frame; + + /* find index of URB */ + for (index = 0; index < LINE6_ISO_BUFFERS; ++index) + if (urb == line6pcm->urb_audio_in[index]) + break; + + spin_lock_irqsave(&line6pcm->lock_audio_in, flags); + + for (i = 0; i < LINE6_ISO_PACKETS; ++i) { + char *fbuf; + int fsize; + struct usb_iso_packet_descriptor *fin = &urb->iso_frame_desc[i]; + + if (fin->status == -EXDEV) { + shutdown = 1; + break; + } + + fbuf = urb->transfer_buffer + fin->offset; + fsize = fin->actual_length; + + if (fsize > line6pcm->max_packet_size) { + dev_err(line6pcm->line6->ifcdev, + "driver and/or device bug: packet too large (%d > %d)\n", + fsize, line6pcm->max_packet_size); + } + + length += fsize; + + /* the following assumes LINE6_ISO_PACKETS == 1: */ + line6pcm->prev_fbuf = fbuf; + line6pcm->prev_fsize = fsize; + +#ifdef CONFIG_LINE6_USB_IMPULSE_RESPONSE + if (!(line6pcm->flags & LINE6_BITS_PCM_IMPULSE)) +#endif + if (test_bit(LINE6_INDEX_PCM_ALSA_CAPTURE_STREAM, + &line6pcm->flags) && (fsize > 0)) + line6_capture_copy(line6pcm, fbuf, fsize); + } + + clear_bit(index, &line6pcm->active_urb_in); + + if (test_and_clear_bit(index, &line6pcm->unlink_urb_in)) + shutdown = 1; + + spin_unlock_irqrestore(&line6pcm->lock_audio_in, flags); + + if (!shutdown) { + submit_audio_in_urb(line6pcm); + +#ifdef CONFIG_LINE6_USB_IMPULSE_RESPONSE + if (!(line6pcm->flags & LINE6_BITS_PCM_IMPULSE)) +#endif + if (test_bit(LINE6_INDEX_PCM_ALSA_CAPTURE_STREAM, + &line6pcm->flags)) + line6_capture_check_period(line6pcm, length); + } +} + +/* open capture callback */ +static int snd_line6_capture_open(struct snd_pcm_substream *substream) +{ + int err; + struct snd_pcm_runtime *runtime = substream->runtime; + struct snd_line6_pcm *line6pcm = snd_pcm_substream_chip(substream); + + err = snd_pcm_hw_constraint_ratdens(runtime, 0, + SNDRV_PCM_HW_PARAM_RATE, + (&line6pcm-> + properties->snd_line6_rates)); + if (err < 0) + return err; + + runtime->hw = line6pcm->properties->snd_line6_capture_hw; + return 0; +} + +/* close capture callback */ +static int snd_line6_capture_close(struct snd_pcm_substream *substream) +{ + return 0; +} + +/* hw_params capture callback */ +static int snd_line6_capture_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *hw_params) +{ + int ret; + struct snd_line6_pcm *line6pcm = snd_pcm_substream_chip(substream); + + /* -- Florian Demski [FD] */ + /* don't ask me why, but this fixes the bug on my machine */ + if (line6pcm == NULL) { + if (substream->pcm == NULL) + return -ENOMEM; + if (substream->pcm->private_data == NULL) + return -ENOMEM; + substream->private_data = substream->pcm->private_data; + line6pcm = snd_pcm_substream_chip(substream); + } + /* -- [FD] end */ + + ret = line6_pcm_acquire(line6pcm, LINE6_BIT_PCM_ALSA_CAPTURE_BUFFER); + + if (ret < 0) + return ret; + + ret = snd_pcm_lib_malloc_pages(substream, + params_buffer_bytes(hw_params)); + if (ret < 0) { + line6_pcm_release(line6pcm, LINE6_BIT_PCM_ALSA_CAPTURE_BUFFER); + return ret; + } + + line6pcm->period_in = params_period_bytes(hw_params); + return 0; +} + +/* hw_free capture callback */ +static int snd_line6_capture_hw_free(struct snd_pcm_substream *substream) +{ + struct snd_line6_pcm *line6pcm = snd_pcm_substream_chip(substream); + + line6_pcm_release(line6pcm, LINE6_BIT_PCM_ALSA_CAPTURE_BUFFER); + return snd_pcm_lib_free_pages(substream); +} + +/* trigger callback */ +int snd_line6_capture_trigger(struct snd_line6_pcm *line6pcm, int cmd) +{ + int err; + + switch (cmd) { + case SNDRV_PCM_TRIGGER_START: +#ifdef CONFIG_PM + case SNDRV_PCM_TRIGGER_RESUME: +#endif + err = line6_pcm_acquire(line6pcm, + LINE6_BIT_PCM_ALSA_CAPTURE_STREAM); + + if (err < 0) + return err; + + break; + + case SNDRV_PCM_TRIGGER_STOP: +#ifdef CONFIG_PM + case SNDRV_PCM_TRIGGER_SUSPEND: +#endif + err = line6_pcm_release(line6pcm, + LINE6_BIT_PCM_ALSA_CAPTURE_STREAM); + + if (err < 0) + return err; + + break; + + default: + return -EINVAL; + } + + return 0; +} + +/* capture pointer callback */ +static snd_pcm_uframes_t +snd_line6_capture_pointer(struct snd_pcm_substream *substream) +{ + struct snd_line6_pcm *line6pcm = snd_pcm_substream_chip(substream); + + return line6pcm->pos_in_done; +} + +/* capture operators */ +struct snd_pcm_ops snd_line6_capture_ops = { + .open = snd_line6_capture_open, + .close = snd_line6_capture_close, + .ioctl = snd_pcm_lib_ioctl, + .hw_params = snd_line6_capture_hw_params, + .hw_free = snd_line6_capture_hw_free, + .prepare = snd_line6_prepare, + .trigger = snd_line6_trigger, + .pointer = snd_line6_capture_pointer, +}; + +int line6_create_audio_in_urbs(struct snd_line6_pcm *line6pcm) +{ + struct usb_line6 *line6 = line6pcm->line6; + int i; + + /* create audio URBs and fill in constant values: */ + for (i = 0; i < LINE6_ISO_BUFFERS; ++i) { + struct urb *urb; + + /* URB for audio in: */ + urb = line6pcm->urb_audio_in[i] = + usb_alloc_urb(LINE6_ISO_PACKETS, GFP_KERNEL); + + if (urb == NULL) { + dev_err(line6->ifcdev, "Out of memory\n"); + return -ENOMEM; + } + + urb->dev = line6->usbdev; + urb->pipe = + usb_rcvisocpipe(line6->usbdev, + line6->properties->ep_audio_r & + USB_ENDPOINT_NUMBER_MASK); + urb->transfer_flags = URB_ISO_ASAP; + urb->start_frame = -1; + urb->number_of_packets = LINE6_ISO_PACKETS; + urb->interval = LINE6_ISO_INTERVAL; + urb->error_count = 0; + urb->complete = audio_in_callback; + } + + return 0; +} diff --git a/sound/usb/line6/capture.h b/sound/usb/line6/capture.h new file mode 100644 index 000000000000..4157bcb598a9 --- /dev/null +++ b/sound/usb/line6/capture.h @@ -0,0 +1,35 @@ +/* + * Line6 Linux USB driver - 0.9.1beta + * + * Copyright (C) 2004-2010 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. + * + */ + +#ifndef CAPTURE_H +#define CAPTURE_H + +#include <sound/pcm.h> + +#include "driver.h" +#include "pcm.h" + +extern struct snd_pcm_ops snd_line6_capture_ops; + +extern void line6_capture_copy(struct snd_line6_pcm *line6pcm, char *fbuf, + int fsize); +extern void line6_capture_check_period(struct snd_line6_pcm *line6pcm, + int length); +extern int line6_create_audio_in_urbs(struct snd_line6_pcm *line6pcm); +extern void line6_free_capture_buffer(struct snd_line6_pcm *line6pcm); +extern int line6_submit_audio_in_all_urbs(struct snd_line6_pcm *line6pcm); +extern void line6_unlink_audio_in_urbs(struct snd_line6_pcm *line6pcm); +extern void line6_unlink_wait_clear_audio_in_urbs(struct snd_line6_pcm + *line6pcm); +extern void line6_wait_clear_audio_in_urbs(struct snd_line6_pcm *line6pcm); +extern int snd_line6_capture_trigger(struct snd_line6_pcm *line6pcm, int cmd); + +#endif diff --git a/sound/usb/line6/driver.c b/sound/usb/line6/driver.c new file mode 100644 index 000000000000..fc852f6ab8bc --- /dev/null +++ b/sound/usb/line6/driver.c @@ -0,0 +1,1114 @@ +/* + * Line6 Linux USB driver - 0.9.1beta + * + * Copyright (C) 2004-2010 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 <linux/kernel.h> +#include <linux/module.h> +#include <linux/slab.h> +#include <linux/usb.h> + +#include "audio.h" +#include "capture.h" +#include "driver.h" +#include "midi.h" +#include "playback.h" +#include "pod.h" +#include "podhd.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 "0.9.1beta" DRIVER_REVISION + +#define LINE6_DEVICE(prod) USB_DEVICE(0x0e41, prod) +#define LINE6_IF_NUM(prod, n) USB_DEVICE_INTERFACE_NUMBER(0x0e41, prod, n) + +/* table of devices that work with this driver */ +static const struct usb_device_id line6_id_table[] = { + { LINE6_DEVICE(0x4250), .driver_info = LINE6_BASSPODXT }, + { LINE6_DEVICE(0x4642), .driver_info = LINE6_BASSPODXTLIVE }, + { LINE6_DEVICE(0x4252), .driver_info = LINE6_BASSPODXTPRO }, + { LINE6_DEVICE(0x4750), .driver_info = LINE6_GUITARPORT }, + { LINE6_IF_NUM(0x5051, 1), .driver_info = LINE6_POCKETPOD }, + { LINE6_DEVICE(0x5057), .driver_info = LINE6_PODHD300 }, + { LINE6_DEVICE(0x5058), .driver_info = LINE6_PODHD400 }, + { LINE6_IF_NUM(0x414D, 0), .driver_info = LINE6_PODHD500_0 }, + { LINE6_IF_NUM(0x414D, 1), .driver_info = LINE6_PODHD500_1 }, + { LINE6_DEVICE(0x4153), .driver_info = LINE6_PODSTUDIO_GX }, + { LINE6_DEVICE(0x4150), .driver_info = LINE6_PODSTUDIO_UX1 }, + { LINE6_IF_NUM(0x4151, 0), .driver_info = LINE6_PODSTUDIO_UX2 }, + { LINE6_DEVICE(0x5044), .driver_info = LINE6_PODXT }, + { LINE6_IF_NUM(0x4650, 0), .driver_info = LINE6_PODXTLIVE_POD }, + { LINE6_IF_NUM(0x4650, 1), .driver_info = LINE6_PODXTLIVE_VARIAX }, + { LINE6_DEVICE(0x5050), .driver_info = LINE6_PODXTPRO }, + { LINE6_DEVICE(0x4147), .driver_info = LINE6_TONEPORT_GX }, + { LINE6_DEVICE(0x4141), .driver_info = LINE6_TONEPORT_UX1 }, + { LINE6_IF_NUM(0x4142, 0), .driver_info = LINE6_TONEPORT_UX2 }, + { LINE6_DEVICE(0x534d), .driver_info = LINE6_VARIAX }, + {} +}; + +MODULE_DEVICE_TABLE(usb, line6_id_table); + +static const struct line6_properties line6_properties_table[] = { + [LINE6_BASSPODXT] = { + .id = "BassPODxt", + .name = "BassPODxt", + .capabilities = LINE6_CAP_CONTROL + | LINE6_CAP_PCM + | LINE6_CAP_HWMON, + .altsetting = 5, + .ep_ctrl_r = 0x84, + .ep_ctrl_w = 0x03, + .ep_audio_r = 0x82, + .ep_audio_w = 0x01, + }, + [LINE6_BASSPODXTLIVE] = { + .id = "BassPODxtLive", + .name = "BassPODxt Live", + .capabilities = LINE6_CAP_CONTROL + | LINE6_CAP_PCM + | LINE6_CAP_HWMON, + .altsetting = 1, + .ep_ctrl_r = 0x84, + .ep_ctrl_w = 0x03, + .ep_audio_r = 0x82, + .ep_audio_w = 0x01, + }, + [LINE6_BASSPODXTPRO] = { + .id = "BassPODxtPro", + .name = "BassPODxt Pro", + .capabilities = LINE6_CAP_CONTROL + | LINE6_CAP_PCM + | LINE6_CAP_HWMON, + .altsetting = 5, + .ep_ctrl_r = 0x84, + .ep_ctrl_w = 0x03, + .ep_audio_r = 0x82, + .ep_audio_w = 0x01, + }, + [LINE6_GUITARPORT] = { + .id = "GuitarPort", + .name = "GuitarPort", + .capabilities = LINE6_CAP_PCM, + .altsetting = 2, /* 1..4 seem to be ok */ + /* no control channel */ + .ep_audio_r = 0x82, + .ep_audio_w = 0x01, + }, + [LINE6_POCKETPOD] = { + .id = "PocketPOD", + .name = "Pocket POD", + .capabilities = LINE6_CAP_CONTROL, + .altsetting = 0, + .ep_ctrl_r = 0x82, + .ep_ctrl_w = 0x02, + /* no audio channel */ + }, + [LINE6_PODHD300] = { + .id = "PODHD300", + .name = "POD HD300", + .capabilities = LINE6_CAP_CONTROL + | LINE6_CAP_PCM + | LINE6_CAP_HWMON, + .altsetting = 5, + .ep_ctrl_r = 0x84, + .ep_ctrl_w = 0x03, + .ep_audio_r = 0x82, + .ep_audio_w = 0x01, + }, + [LINE6_PODHD400] = { + .id = "PODHD400", + .name = "POD HD400", + .capabilities = LINE6_CAP_CONTROL + | LINE6_CAP_PCM + | LINE6_CAP_HWMON, + .altsetting = 5, + .ep_ctrl_r = 0x84, + .ep_ctrl_w = 0x03, + .ep_audio_r = 0x82, + .ep_audio_w = 0x01, + }, + [LINE6_PODHD500_0] = { + .id = "PODHD500", + .name = "POD HD500", + .capabilities = LINE6_CAP_CONTROL + | LINE6_CAP_PCM + | LINE6_CAP_HWMON, + .altsetting = 1, + .ep_ctrl_r = 0x81, + .ep_ctrl_w = 0x01, + .ep_audio_r = 0x86, + .ep_audio_w = 0x02, + }, + [LINE6_PODHD500_1] = { + .id = "PODHD500", + .name = "POD HD500", + .capabilities = LINE6_CAP_CONTROL + | LINE6_CAP_PCM + | LINE6_CAP_HWMON, + .altsetting = 1, + .ep_ctrl_r = 0x81, + .ep_ctrl_w = 0x01, + .ep_audio_r = 0x86, + .ep_audio_w = 0x02, + }, + [LINE6_PODSTUDIO_GX] = { + .id = "PODStudioGX", + .name = "POD Studio GX", + .capabilities = LINE6_CAP_PCM, + .altsetting = 2, /* 1..4 seem to be ok */ + /* no control channel */ + .ep_audio_r = 0x82, + .ep_audio_w = 0x01, + }, + [LINE6_PODSTUDIO_UX1] = { + .id = "PODStudioUX1", + .name = "POD Studio UX1", + .capabilities = LINE6_CAP_PCM, + .altsetting = 2, /* 1..4 seem to be ok */ + /* no control channel */ + .ep_audio_r = 0x82, + .ep_audio_w = 0x01, + }, + [LINE6_PODSTUDIO_UX2] = { + .id = "PODStudioUX2", + .name = "POD Studio UX2", + .capabilities = LINE6_CAP_PCM, + .altsetting = 2, /* defaults to 44.1kHz, 16-bit */ + /* no control channel */ + .ep_audio_r = 0x82, + .ep_audio_w = 0x01, + }, + [LINE6_PODXT] = { + .id = "PODxt", + .name = "PODxt", + .capabilities = LINE6_CAP_CONTROL + | LINE6_CAP_PCM + | LINE6_CAP_HWMON, + .altsetting = 5, + .ep_ctrl_r = 0x84, + .ep_ctrl_w = 0x03, + .ep_audio_r = 0x82, + .ep_audio_w = 0x01, + }, + [LINE6_PODXTLIVE_POD] = { + .id = "PODxtLive", + .name = "PODxt Live", + .capabilities = LINE6_CAP_CONTROL + | LINE6_CAP_PCM + | LINE6_CAP_HWMON, + .altsetting = 1, + .ep_ctrl_r = 0x84, + .ep_ctrl_w = 0x03, + .ep_audio_r = 0x82, + .ep_audio_w = 0x01, + }, + [LINE6_PODXTLIVE_VARIAX] = { + .id = "PODxtLive", + .name = "PODxt Live", + .capabilities = LINE6_CAP_CONTROL + | LINE6_CAP_PCM + | LINE6_CAP_HWMON, + .altsetting = 1, + .ep_ctrl_r = 0x86, + .ep_ctrl_w = 0x05, + .ep_audio_r = 0x82, + .ep_audio_w = 0x01, + }, + [LINE6_PODXTPRO] = { + .id = "PODxtPro", + .name = "PODxt Pro", + .capabilities = LINE6_CAP_CONTROL + | LINE6_CAP_PCM + | LINE6_CAP_HWMON, + .altsetting = 5, + .ep_ctrl_r = 0x84, + .ep_ctrl_w = 0x03, + .ep_audio_r = 0x82, + .ep_audio_w = 0x01, + }, + [LINE6_TONEPORT_GX] = { + .id = "TonePortGX", + .name = "TonePort GX", + .capabilities = LINE6_CAP_PCM, + .altsetting = 2, /* 1..4 seem to be ok */ + /* no control channel */ + .ep_audio_r = 0x82, + .ep_audio_w = 0x01, + }, + [LINE6_TONEPORT_UX1] = { + .id = "TonePortUX1", + .name = "TonePort UX1", + .capabilities = LINE6_CAP_PCM, + .altsetting = 2, /* 1..4 seem to be ok */ + /* no control channel */ + .ep_audio_r = 0x82, + .ep_audio_w = 0x01, + }, + [LINE6_TONEPORT_UX2] = { + .id = "TonePortUX2", + .name = "TonePort UX2", + .capabilities = LINE6_CAP_PCM, + .altsetting = 2, /* defaults to 44.1kHz, 16-bit */ + /* no control channel */ + .ep_audio_r = 0x82, + .ep_audio_w = 0x01, + }, + [LINE6_VARIAX] = { + .id = "Variax", + .name = "Variax Workbench", + .capabilities = LINE6_CAP_CONTROL, + .altsetting = 1, + .ep_ctrl_r = 0x82, + .ep_ctrl_w = 0x01, + /* no audio channel */ + } +}; + +/* + This is Line6's MIDI manufacturer ID. +*/ +const unsigned char line6_midi_id[] = { + 0x00, 0x01, 0x0c +}; + +/* + Code to request version of POD, Variax interface + (and maybe other devices). +*/ +static const char line6_request_version[] = { + 0xf0, 0x7e, 0x7f, 0x06, 0x01, 0xf7 +}; + +/** + 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) +{ + int err; + + usb_fill_int_urb(line6->urb_listen, line6->usbdev, + usb_rcvintpipe(line6->usbdev, line6->properties->ep_ctrl_r), + line6->buffer_listen, LINE6_BUFSIZE_LISTEN, + line6_data_received, line6, line6->interval); + line6->urb_listen->actual_length = 0; + err = usb_submit_urb(line6->urb_listen, GFP_ATOMIC); + return err; +} + +/* + Stop listening on endpoint. +*/ +static void line6_stop_listen(struct usb_line6 *line6) +{ + usb_kill_urb(line6->urb_listen); +} + +/* + Send raw message in pieces of wMaxPacketSize bytes. +*/ +int line6_send_raw_message(struct usb_line6 *line6, const char *buffer, + int size) +{ + int i, done = 0; + + for (i = 0; i < size; i += line6->max_packet_size) { + int partial; + 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->properties->ep_ctrl_w), + (char *)frag_buf, frag_size, + &partial, LINE6_TIMEOUT * HZ); + + if (retval) { + dev_err(line6->ifcdev, + "usb_interrupt_msg failed (%d)\n", retval); + break; + } + + done += frag_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->properties->ep_ctrl_w), + (char *)msg->buffer + done, bytes, + line6_async_request_sent, msg, line6->interval); + + 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 retval; + } + + return 0; +} + +/* + Setup and start timer. +*/ +void line6_start_timer(struct timer_list *timer, unsigned int msecs, + void (*function)(unsigned long), unsigned long data) +{ + setup_timer(timer, function, data); + timer->expires = jiffies + msecs * HZ / 1000; + add_timer(timer); +} + +/* + 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) + 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 asynchronous device version request. +*/ +int line6_version_request_async(struct usb_line6 *line6) +{ + char *buffer; + int retval; + + buffer = kmemdup(line6_request_version, + sizeof(line6_request_version), GFP_ATOMIC); + if (buffer == NULL) { + dev_err(line6->ifcdev, "Out of memory"); + return -ENOMEM; + } + + retval = line6_send_raw_message_async(line6, buffer, + sizeof(line6_request_version)); + kfree(buffer); + return retval; +} + +/* + 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_ATOMIC); + + if (!buffer) + 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 midi_buffer *mb = &line6->line6midi->midibuf_in; + int done; + + if (urb->status == -ESHUTDOWN) + return; + + done = + line6_midibuf_write(mb, urb->transfer_buffer, urb->actual_length); + + if (done < urb->actual_length) { + line6_midibuf_ignore(mb, done); + dev_dbg(line6->ifcdev, "%d %d buffer overflow - message skipped\n", + done, urb->actual_length); + } + + for (;;) { + done = + line6_midibuf_read(mb, line6->buffer_message, + LINE6_MESSAGE_MAXLEN); + + if (done == 0) + break; + + line6->message_length = done; + line6_midi_receive(line6, line6->buffer_message, done); + + if (line6->process_message) + line6->process_message(line6); + } + + line6_start_listen(line6); +} + +/* + Send channel number (i.e., switch to a different sound). +*/ +int line6_send_program(struct usb_line6 *line6, u8 value) +{ + int retval; + unsigned char *buffer; + int partial; + + buffer = kmalloc(2, GFP_KERNEL); + if (!buffer) + return -ENOMEM; + + buffer[0] = LINE6_PROGRAM_CHANGE | LINE6_CHANNEL_HOST; + buffer[1] = value; + + retval = usb_interrupt_msg(line6->usbdev, + usb_sndintpipe(line6->usbdev, + line6->properties->ep_ctrl_w), + buffer, 2, &partial, LINE6_TIMEOUT * HZ); + + if (retval) + dev_err(line6->ifcdev, "usb_interrupt_msg failed (%d)\n", + retval); + + kfree(buffer); + return retval; +} + +/* + Transmit Line6 control parameter. +*/ +int line6_transmit_parameter(struct usb_line6 *line6, int param, u8 value) +{ + int retval; + unsigned char *buffer; + int partial; + + buffer = kmalloc(3, GFP_KERNEL); + if (!buffer) + return -ENOMEM; + + buffer[0] = LINE6_PARAM_CHANGE | LINE6_CHANNEL_HOST; + buffer[1] = param; + buffer[2] = value; + + retval = usb_interrupt_msg(line6->usbdev, + usb_sndintpipe(line6->usbdev, + line6->properties->ep_ctrl_w), + buffer, 3, &partial, LINE6_TIMEOUT * HZ); + + if (retval) + dev_err(line6->ifcdev, "usb_interrupt_msg failed (%d)\n", + retval); + + kfree(buffer); + return retval; +} + +/* + 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 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; +} + +/* + 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); +} + +/* + Probe USB device. +*/ +static int line6_probe(struct usb_interface *interface, + const struct usb_device_id *id) +{ + enum line6_device_type devtype; + struct usb_device *usbdev; + struct usb_line6 *line6; + const struct line6_properties *properties; + int interface_number; + int size = 0; + int ret; + + if (interface == NULL) + return -ENODEV; + usbdev = interface_to_usbdev(interface); + if (usbdev == NULL) + return -ENODEV; + + /* we don't handle multiple configurations */ + if (usbdev->descriptor.bNumConfigurations != 1) { + ret = -ENODEV; + goto err_put; + } + + devtype = id->driver_info; + + /* initialize device info: */ + properties = &line6_properties_table[devtype]; + dev_info(&interface->dev, "Line6 %s found\n", properties->name); + + /* query interface number */ + interface_number = interface->cur_altsetting->desc.bInterfaceNumber; + + ret = usb_set_interface(usbdev, interface_number, + properties->altsetting); + if (ret < 0) { + dev_err(&interface->dev, "set_interface failed\n"); + goto err_put; + } + + /* initialize device data based on device: */ + switch (devtype) { + case LINE6_BASSPODXT: + case LINE6_BASSPODXTLIVE: + case LINE6_BASSPODXTPRO: + case LINE6_PODXT: + case LINE6_PODXTPRO: + size = sizeof(struct usb_line6_pod); + break; + + case LINE6_PODHD300: + case LINE6_PODHD400: + size = sizeof(struct usb_line6_podhd); + break; + + case LINE6_PODHD500_0: + case LINE6_PODHD500_1: + size = sizeof(struct usb_line6_podhd); + break; + + case LINE6_POCKETPOD: + size = sizeof(struct usb_line6_pod); + break; + + case LINE6_PODSTUDIO_GX: + case LINE6_PODSTUDIO_UX1: + case LINE6_PODSTUDIO_UX2: + case LINE6_TONEPORT_GX: + case LINE6_TONEPORT_UX1: + case LINE6_TONEPORT_UX2: + case LINE6_GUITARPORT: + size = sizeof(struct usb_line6_toneport); + break; + + case LINE6_PODXTLIVE_POD: + size = sizeof(struct usb_line6_pod); + break; + + case LINE6_PODXTLIVE_VARIAX: + size = sizeof(struct usb_line6_variax); + break; + + case LINE6_VARIAX: + size = sizeof(struct usb_line6_variax); + break; + + default: + MISSING_CASE; + ret = -ENODEV; + goto err_put; + } + + if (size == 0) { + dev_err(&interface->dev, + "driver bug: interface data size not set\n"); + ret = -ENODEV; + goto err_put; + } + + line6 = kzalloc(size, GFP_KERNEL); + if (line6 == NULL) { + ret = -ENODEV; + goto err_put; + } + + /* store basic data: */ + line6->properties = properties; + line6->usbdev = usbdev; + line6->ifcdev = &interface->dev; + line6->type = devtype; + + /* get data from endpoint descriptor (see usb_maxpacket): */ + { + struct usb_host_endpoint *ep; + unsigned pipe = usb_rcvintpipe(usbdev, properties->ep_ctrl_r); + unsigned epnum = usb_pipeendpoint(pipe); + 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_CAP_CONTROL) { + /* initialize USB buffers: */ + line6->buffer_listen = + kmalloc(LINE6_BUFSIZE_LISTEN, GFP_KERNEL); + if (line6->buffer_listen == NULL) { + ret = -ENOMEM; + goto err_destruct; + } + + line6->buffer_message = + kmalloc(LINE6_MESSAGE_MAXLEN, GFP_KERNEL); + if (line6->buffer_message == NULL) { + ret = -ENOMEM; + goto err_destruct; + } + + 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); + ret = -ENOMEM; + goto err_destruct; + } + + ret = line6_start_listen(line6); + if (ret < 0) { + dev_err(&interface->dev, "%s: usb_submit_urb failed\n", + __func__); + goto err_destruct; + } + } + + /* initialize device data based on device: */ + switch (devtype) { + case LINE6_BASSPODXT: + case LINE6_BASSPODXTLIVE: + case LINE6_BASSPODXTPRO: + case LINE6_POCKETPOD: + case LINE6_PODXT: + case LINE6_PODXTPRO: + ret = line6_pod_init(interface, line6); + break; + + case LINE6_PODHD300: + case LINE6_PODHD400: + case LINE6_PODHD500_0: + case LINE6_PODHD500_1: + ret = line6_podhd_init(interface, line6); + break; + + case LINE6_PODXTLIVE_POD: + ret = line6_pod_init(interface, line6); + break; + + case LINE6_PODXTLIVE_VARIAX: + ret = line6_variax_init(interface, line6); + break; + + case LINE6_VARIAX: + ret = line6_variax_init(interface, line6); + break; + + case LINE6_PODSTUDIO_GX: + case LINE6_PODSTUDIO_UX1: + case LINE6_PODSTUDIO_UX2: + case LINE6_TONEPORT_GX: + case LINE6_TONEPORT_UX1: + case LINE6_TONEPORT_UX2: + case LINE6_GUITARPORT: + ret = line6_toneport_init(interface, line6); + break; + + default: + MISSING_CASE; + ret = -ENODEV; + } + + if (ret < 0) + goto err_destruct; + + ret = sysfs_create_link(&interface->dev.kobj, &usbdev->dev.kobj, + "usb_device"); + if (ret < 0) + goto err_destruct; + + /* creation of additional special files should go here */ + + dev_info(&interface->dev, "Line6 %s now attached\n", + line6->properties->name); + + /* increment reference counters: */ + usb_get_intf(interface); + usb_get_dev(usbdev); + + return 0; + +err_destruct: + line6_destruct(interface); +err_put: + return ret; +} + +/* + Line6 device disconnected. +*/ +static void line6_disconnect(struct usb_interface *interface) +{ + struct usb_line6 *line6; + struct usb_device *usbdev; + int interface_number; + + if (interface == NULL) + return; + usbdev = interface_to_usbdev(interface); + if (usbdev == NULL) + return; + + /* removal of additional special files should go here */ + + 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) + line6_stop_listen(line6); + + if (usbdev != line6->usbdev) + dev_err(line6->ifcdev, + "driver bug: inconsistent usb device\n"); + + line6->disconnect(interface); + + dev_info(&interface->dev, "Line6 %s now disconnected\n", + line6->properties->name); + } + + line6_destruct(interface); + + /* decrement reference counters: */ + usb_put_intf(interface); + usb_put_dev(usbdev); +} + +#ifdef CONFIG_PM + +/* + Suspend Line6 device. +*/ +static int line6_suspend(struct usb_interface *interface, pm_message_t message) +{ + struct usb_line6 *line6 = usb_get_intfdata(interface); + struct snd_line6_pcm *line6pcm = line6->line6pcm; + + snd_power_change_state(line6->card, SNDRV_CTL_POWER_D3hot); + + if (line6->properties->capabilities & LINE6_CAP_CONTROL) + line6_stop_listen(line6); + + if (line6pcm != NULL) { + snd_pcm_suspend_all(line6pcm->pcm); + line6_pcm_disconnect(line6pcm); + line6pcm->flags = 0; + } + + return 0; +} + +/* + Resume Line6 device. +*/ +static int line6_resume(struct usb_interface *interface) +{ + struct usb_line6 *line6 = usb_get_intfdata(interface); + + if (line6->properties->capabilities & LINE6_CAP_CONTROL) + line6_start_listen(line6); + + snd_power_change_state(line6->card, SNDRV_CTL_POWER_D0); + return 0; +} + +/* + Resume Line6 device after reset. +*/ +static int line6_reset_resume(struct usb_interface *interface) +{ + struct usb_line6 *line6 = usb_get_intfdata(interface); + + switch (line6->type) { + case LINE6_PODSTUDIO_GX: + case LINE6_PODSTUDIO_UX1: + case LINE6_PODSTUDIO_UX2: + case LINE6_TONEPORT_GX: + case LINE6_TONEPORT_UX1: + case LINE6_TONEPORT_UX2: + case LINE6_GUITARPORT: + line6_toneport_reset_resume((struct usb_line6_toneport *)line6); + + default: + break; + } + + return line6_resume(interface); +} + +#endif /* CONFIG_PM */ + +static struct usb_driver line6_driver = { + .name = DRIVER_NAME, + .probe = line6_probe, + .disconnect = line6_disconnect, +#ifdef CONFIG_PM + .suspend = line6_suspend, + .resume = line6_resume, + .reset_resume = line6_reset_resume, +#endif + .id_table = line6_id_table, +}; + +module_usb_driver(line6_driver); + +MODULE_AUTHOR(DRIVER_AUTHOR); +MODULE_DESCRIPTION(DRIVER_DESC); +MODULE_LICENSE("GPL"); +MODULE_VERSION(DRIVER_VERSION); diff --git a/sound/usb/line6/driver.h b/sound/usb/line6/driver.h new file mode 100644 index 000000000000..ad203f197e80 --- /dev/null +++ b/sound/usb/line6/driver.h @@ -0,0 +1,228 @@ +/* + * Line6 Linux USB driver - 0.9.1beta + * + * Copyright (C) 2004-2010 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. + * + */ + +#ifndef DRIVER_H +#define DRIVER_H + +#include <linux/spinlock.h> +#include <linux/usb.h> +#include <sound/core.h> + +#include "midi.h" + +#define DRIVER_NAME "line6usb" + +enum line6_device_type { + LINE6_BASSPODXT, + LINE6_BASSPODXTLIVE, + LINE6_BASSPODXTPRO, + LINE6_GUITARPORT, + LINE6_POCKETPOD, + LINE6_PODHD300, + LINE6_PODHD400, + LINE6_PODHD500_0, + LINE6_PODHD500_1, + LINE6_PODSTUDIO_GX, + LINE6_PODSTUDIO_UX1, + LINE6_PODSTUDIO_UX2, + LINE6_PODXT, + LINE6_PODXTLIVE_POD, + LINE6_PODXTLIVE_VARIAX, + LINE6_PODXTPRO, + LINE6_TONEPORT_GX, + LINE6_TONEPORT_UX1, + LINE6_TONEPORT_UX2, + LINE6_VARIAX +}; + +#define LINE6_TIMEOUT 1 +#define LINE6_BUFSIZE_LISTEN 32 +#define LINE6_MESSAGE_MAXLEN 256 + +/* + Line6 MIDI control commands +*/ +#define LINE6_PARAM_CHANGE 0xb0 +#define LINE6_PROGRAM_CHANGE 0xc0 +#define LINE6_SYSEX_BEGIN 0xf0 +#define LINE6_SYSEX_END 0xf7 +#define LINE6_RESET 0xff + +/* + MIDI channel for messages initiated by the host + (and eventually echoed back by the device) +*/ +#define LINE6_CHANNEL_HOST 0x00 + +/* + MIDI channel for messages initiated by the device +*/ +#define LINE6_CHANNEL_DEVICE 0x02 + +#define LINE6_CHANNEL_UNKNOWN 5 /* don't know yet what this is good for */ + +#define LINE6_CHANNEL_MASK 0x0f + +#define MISSING_CASE \ + pr_err("line6usb driver bug: missing case in %s:%d\n", \ + __FILE__, __LINE__) + +#define CHECK_RETURN(x) \ +do { \ + err = x; \ + if (err < 0) \ + return err; \ +} while (0) + +#define CHECK_STARTUP_PROGRESS(x, n) \ +do { \ + if ((x) >= (n)) \ + return; \ + x = (n); \ +} while (0) + +extern const unsigned char line6_midi_id[3]; + +static const int SYSEX_DATA_OFS = sizeof(line6_midi_id) + 3; +static const int SYSEX_EXTRA_SIZE = sizeof(line6_midi_id) + 4; + +/** + Common properties of Line6 devices. +*/ +struct line6_properties { + /** + Card id string (maximum 16 characters). + This can be used to address the device in ALSA programs as + "default:CARD=<id>" + */ + const char *id; + + /** + Card short name (maximum 32 characters). + */ + const char *name; + + /** + Bit vector defining this device's capabilities in the + line6usb driver. + */ + int capabilities; + + int altsetting; + + unsigned ep_ctrl_r; + unsigned ep_ctrl_w; + unsigned ep_audio_r; + unsigned ep_audio_w; +}; + +/** + Common data shared by all Line6 devices. + Corresponds to a pair of USB endpoints. +*/ +struct usb_line6 { + /** + USB device. + */ + struct usb_device *usbdev; + + /** + Device type. + */ + enum line6_device_type type; + + /** + Properties. + */ + const struct line6_properties *properties; + + /** + Interval (ms). + */ + int interval; + + /** + Maximum size of USB packet. + */ + int max_packet_size; + + /** + Device representing the USB interface. + */ + struct device *ifcdev; + + /** + Line6 sound card data structure. + Each device has at least MIDI or PCM. + */ + struct snd_card *card; + + /** + Line6 PCM device data structure. + */ + struct snd_line6_pcm *line6pcm; + + /** + Line6 MIDI device data structure. + */ + struct snd_line6_midi *line6midi; + + /** + URB for listening to PODxt Pro control endpoint. + */ + struct urb *urb_listen; + + /** + Buffer for listening to PODxt Pro control endpoint. + */ + unsigned char *buffer_listen; + + /** + Buffer for message to be processed. + */ + unsigned char *buffer_message; + + /** + Length of message to be processed. + */ + int message_length; + + void (*process_message)(struct usb_line6 *); + void (*disconnect)(struct usb_interface *); +}; + +extern char *line6_alloc_sysex_buffer(struct usb_line6 *line6, int code1, + int code2, int size); +extern ssize_t line6_nop_read(struct device *dev, + struct device_attribute *attr, char *buf); +extern int line6_read_data(struct usb_line6 *line6, int address, void *data, + size_t datalen); +extern int line6_read_serial_number(struct usb_line6 *line6, + int *serial_number); +extern int line6_send_program(struct usb_line6 *line6, u8 value); +extern int line6_send_raw_message(struct usb_line6 *line6, const char *buffer, + int size); +extern int line6_send_raw_message_async(struct usb_line6 *line6, + const char *buffer, int size); +extern int line6_send_sysex_message(struct usb_line6 *line6, + const char *buffer, int size); +extern ssize_t line6_set_raw(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count); +extern void line6_start_timer(struct timer_list *timer, unsigned int msecs, + void (*function)(unsigned long), + unsigned long data); +extern int line6_transmit_parameter(struct usb_line6 *line6, int param, + u8 value); +extern int line6_version_request_async(struct usb_line6 *line6); +extern int line6_write_data(struct usb_line6 *line6, int address, void *data, + size_t datalen); + +#endif diff --git a/sound/usb/line6/midi.c b/sound/usb/line6/midi.c new file mode 100644 index 000000000000..c9d725ae85a0 --- /dev/null +++ b/sound/usb/line6/midi.c @@ -0,0 +1,321 @@ +/* + * Line6 Linux USB driver - 0.9.1beta + * + * Copyright (C) 2004-2010 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 <linux/slab.h> +#include <linux/usb.h> +#include <sound/core.h> +#include <sound/rawmidi.h> + +#include "audio.h" +#include "driver.h" +#include "midi.h" +#include "pod.h" +#include "usbdefs.h" + +#define line6_rawmidi_substream_midi(substream) \ + ((struct snd_line6_midi *)((substream)->rmidi->private_data)) + +static int send_midi_async(struct usb_line6 *line6, unsigned char *data, + int length); + +/* + Pass data received via USB to MIDI. +*/ +void line6_midi_receive(struct usb_line6 *line6, unsigned char *data, + int length) +{ + if (line6->line6midi->substream_receive) + snd_rawmidi_receive(line6->line6midi->substream_receive, + data, length); +} + +/* + Read data from MIDI buffer and transmit them via USB. +*/ +static void line6_midi_transmit(struct snd_rawmidi_substream *substream) +{ + struct usb_line6 *line6 = + line6_rawmidi_substream_midi(substream)->line6; + struct snd_line6_midi *line6midi = line6->line6midi; + struct midi_buffer *mb = &line6midi->midibuf_out; + unsigned long flags; + unsigned char chunk[LINE6_FALLBACK_MAXPACKETSIZE]; + int req, done; + + spin_lock_irqsave(&line6->line6midi->midi_transmit_lock, flags); + + for (;;) { + req = min(line6_midibuf_bytes_free(mb), line6->max_packet_size); + done = snd_rawmidi_transmit_peek(substream, chunk, req); + + if (done == 0) + break; + + line6_midibuf_write(mb, chunk, done); + snd_rawmidi_transmit_ack(substream, done); + } + + for (;;) { + done = line6_midibuf_read(mb, chunk, + LINE6_FALLBACK_MAXPACKETSIZE); + + if (done == 0) + break; + + send_midi_async(line6, chunk, done); + } + + spin_unlock_irqrestore(&line6->line6midi->midi_transmit_lock, flags); +} + +/* + Notification of completion of MIDI transmission. +*/ +static void midi_sent(struct urb *urb) +{ + unsigned long flags; + int status; + int num; + struct usb_line6 *line6 = (struct usb_line6 *)urb->context; + + status = urb->status; + kfree(urb->transfer_buffer); + usb_free_urb(urb); + + if (status == -ESHUTDOWN) + return; + + spin_lock_irqsave(&line6->line6midi->send_urb_lock, flags); + num = --line6->line6midi->num_active_send_urbs; + + if (num == 0) { + line6_midi_transmit(line6->line6midi->substream_transmit); + num = line6->line6midi->num_active_send_urbs; + } + + if (num == 0) + wake_up(&line6->line6midi->send_wait); + + spin_unlock_irqrestore(&line6->line6midi->send_urb_lock, flags); +} + +/* + Send an asynchronous MIDI message. + Assumes that line6->line6midi->send_urb_lock is held + (i.e., this function is serialized). +*/ +static int send_midi_async(struct usb_line6 *line6, unsigned char *data, + int length) +{ + struct urb *urb; + int retval; + unsigned char *transfer_buffer; + + urb = usb_alloc_urb(0, GFP_ATOMIC); + + if (urb == NULL) { + dev_err(line6->ifcdev, "Out of memory\n"); + return -ENOMEM; + } + + transfer_buffer = kmemdup(data, length, GFP_ATOMIC); + + if (transfer_buffer == NULL) { + usb_free_urb(urb); + dev_err(line6->ifcdev, "Out of memory\n"); + return -ENOMEM; + } + + usb_fill_int_urb(urb, line6->usbdev, + usb_sndbulkpipe(line6->usbdev, + line6->properties->ep_ctrl_w), + transfer_buffer, length, midi_sent, line6, + line6->interval); + urb->actual_length = 0; + retval = usb_submit_urb(urb, GFP_ATOMIC); + + if (retval < 0) { + dev_err(line6->ifcdev, "usb_submit_urb failed\n"); + usb_free_urb(urb); + return retval; + } + + ++line6->line6midi->num_active_send_urbs; + return 0; +} + +static int line6_midi_output_open(struct snd_rawmidi_substream *substream) +{ + return 0; +} + +static int line6_midi_output_close(struct snd_rawmidi_substream *substream) +{ + return 0; +} + +static void line6_midi_output_trigger(struct snd_rawmidi_substream *substream, + int up) +{ + unsigned long flags; + struct usb_line6 *line6 = + line6_rawmidi_substream_midi(substream)->line6; + + line6->line6midi->substream_transmit = substream; + spin_lock_irqsave(&line6->line6midi->send_urb_lock, flags); + + if (line6->line6midi->num_active_send_urbs == 0) + line6_midi_transmit(substream); + + spin_unlock_irqrestore(&line6->line6midi->send_urb_lock, flags); +} + +static void line6_midi_output_drain(struct snd_rawmidi_substream *substream) +{ + struct usb_line6 *line6 = + line6_rawmidi_substream_midi(substream)->line6; + struct snd_line6_midi *midi = line6->line6midi; + + wait_event_interruptible(midi->send_wait, + midi->num_active_send_urbs == 0); +} + +static int line6_midi_input_open(struct snd_rawmidi_substream *substream) +{ + return 0; +} + +static int line6_midi_input_close(struct snd_rawmidi_substream *substream) +{ + return 0; +} + +static void line6_midi_input_trigger(struct snd_rawmidi_substream *substream, + int up) +{ + struct usb_line6 *line6 = + line6_rawmidi_substream_midi(substream)->line6; + + if (up) + line6->line6midi->substream_receive = substream; + else + line6->line6midi->substream_receive = NULL; +} + +static struct snd_rawmidi_ops line6_midi_output_ops = { + .open = line6_midi_output_open, + .close = line6_midi_output_close, + .trigger = line6_midi_output_trigger, + .drain = line6_midi_output_drain, +}; + +static struct snd_rawmidi_ops line6_midi_input_ops = { + .open = line6_midi_input_open, + .close = line6_midi_input_close, + .trigger = line6_midi_input_trigger, +}; + +/* + Cleanup the Line6 MIDI device. +*/ +static void line6_cleanup_midi(struct snd_rawmidi *rmidi) +{ +} + +/* Create a MIDI device */ +static int snd_line6_new_midi(struct snd_line6_midi *line6midi) +{ + struct snd_rawmidi *rmidi; + int err; + + err = snd_rawmidi_new(line6midi->line6->card, "Line6 MIDI", 0, 1, 1, + &rmidi); + if (err < 0) + return err; + + rmidi->private_data = line6midi; + rmidi->private_free = line6_cleanup_midi; + strcpy(rmidi->id, line6midi->line6->properties->id); + strcpy(rmidi->name, line6midi->line6->properties->name); + + rmidi->info_flags = + SNDRV_RAWMIDI_INFO_OUTPUT | + SNDRV_RAWMIDI_INFO_INPUT | SNDRV_RAWMIDI_INFO_DUPLEX; + + snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_OUTPUT, + &line6_midi_output_ops); + snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_INPUT, + &line6_midi_input_ops); + return 0; +} + +/* MIDI device destructor */ +static int snd_line6_midi_free(struct snd_device *device) +{ + struct snd_line6_midi *line6midi = device->device_data; + + line6_midibuf_destroy(&line6midi->midibuf_in); + line6_midibuf_destroy(&line6midi->midibuf_out); + return 0; +} + +/* + Initialize the Line6 MIDI subsystem. +*/ +int line6_init_midi(struct usb_line6 *line6) +{ + static struct snd_device_ops midi_ops = { + .dev_free = snd_line6_midi_free, + }; + + int err; + struct snd_line6_midi *line6midi; + + if (!(line6->properties->capabilities & LINE6_CAP_CONTROL)) { + /* skip MIDI initialization and report success */ + return 0; + } + + line6midi = kzalloc(sizeof(struct snd_line6_midi), GFP_KERNEL); + + if (line6midi == NULL) + return -ENOMEM; + + err = line6_midibuf_init(&line6midi->midibuf_in, MIDI_BUFFER_SIZE, 0); + if (err < 0) { + kfree(line6midi); + return err; + } + + err = line6_midibuf_init(&line6midi->midibuf_out, MIDI_BUFFER_SIZE, 1); + if (err < 0) { + kfree(line6midi->midibuf_in.buf); + kfree(line6midi); + return err; + } + + line6midi->line6 = line6; + line6->line6midi = line6midi; + + err = snd_device_new(line6->card, SNDRV_DEV_RAWMIDI, line6midi, + &midi_ops); + if (err < 0) + return err; + + err = snd_line6_new_midi(line6midi); + if (err < 0) + return err; + + init_waitqueue_head(&line6midi->send_wait); + spin_lock_init(&line6midi->send_urb_lock); + spin_lock_init(&line6midi->midi_transmit_lock); + return 0; +} diff --git a/sound/usb/line6/midi.h b/sound/usb/line6/midi.h new file mode 100644 index 000000000000..78f903fb4d41 --- /dev/null +++ b/sound/usb/line6/midi.h @@ -0,0 +1,72 @@ +/* + * Line6 Linux USB driver - 0.9.1beta + * + * Copyright (C) 2004-2010 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. + * + */ + +#ifndef MIDI_H +#define MIDI_H + +#include <sound/rawmidi.h> + +#include "midibuf.h" + +#define MIDI_BUFFER_SIZE 1024 + +struct snd_line6_midi { + /** + Pointer back to the Line6 driver data structure. + */ + struct usb_line6 *line6; + + /** + MIDI substream for receiving (or NULL if not active). + */ + struct snd_rawmidi_substream *substream_receive; + + /** + MIDI substream for transmitting (or NULL if not active). + */ + struct snd_rawmidi_substream *substream_transmit; + + /** + Number of currently active MIDI send URBs. + */ + int num_active_send_urbs; + + /** + Spin lock to protect updates of send_urb. + */ + spinlock_t send_urb_lock; + + /** + Spin lock to protect MIDI buffer handling. + */ + spinlock_t midi_transmit_lock; + + /** + Wait queue for MIDI transmission. + */ + wait_queue_head_t send_wait; + + /** + Buffer for incoming MIDI stream. + */ + struct midi_buffer midibuf_in; + + /** + Buffer for outgoing MIDI stream. + */ + struct midi_buffer midibuf_out; +}; + +extern int line6_init_midi(struct usb_line6 *line6); +extern void line6_midi_receive(struct usb_line6 *line6, unsigned char *data, + int length); + +#endif diff --git a/sound/usb/line6/midibuf.c b/sound/usb/line6/midibuf.c new file mode 100644 index 000000000000..1ff856989fd6 --- /dev/null +++ b/sound/usb/line6/midibuf.c @@ -0,0 +1,270 @@ +/* + * Line6 Linux USB driver - 0.9.1beta + * + * Copyright (C) 2004-2010 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 <linux/slab.h> + +#include "midibuf.h" + +static int midibuf_message_length(unsigned char code) +{ + int message_length; + + if (code < 0x80) + message_length = -1; + else if (code < 0xf0) { + static const int length[] = { 3, 3, 3, 3, 2, 2, 3 }; + + message_length = length[(code >> 4) - 8]; + } else { + /* + Note that according to the MIDI specification 0xf2 is + the "Song Position Pointer", but this is used by Line6 + to send sysex messages to the host. + */ + static const int length[] = { -1, 2, -1, 2, -1, -1, 1, 1, 1, 1, + 1, 1, 1, -1, 1, 1 + }; + message_length = length[code & 0x0f]; + } + + return message_length; +} + +static int midibuf_is_empty(struct midi_buffer *this) +{ + return (this->pos_read == this->pos_write) && !this->full; +} + +static int midibuf_is_full(struct midi_buffer *this) +{ + return this->full; +} + +void line6_midibuf_reset(struct midi_buffer *this) +{ + this->pos_read = this->pos_write = this->full = 0; + this->command_prev = -1; +} + +int line6_midibuf_init(struct midi_buffer *this, int size, int split) +{ + this->buf = kmalloc(size, GFP_KERNEL); + + if (this->buf == NULL) + return -ENOMEM; + + this->size = size; + this->split = split; + line6_midibuf_reset(this); + return 0; +} + +void line6_midibuf_status(struct midi_buffer *this) +{ + pr_debug("midibuf size=%d split=%d pos_read=%d pos_write=%d full=%d command_prev=%02x\n", + this->size, this->split, this->pos_read, this->pos_write, + this->full, this->command_prev); +} + +int line6_midibuf_bytes_free(struct midi_buffer *this) +{ + return + midibuf_is_full(this) ? + 0 : + (this->pos_read - this->pos_write + this->size - 1) % this->size + + 1; +} + +int line6_midibuf_bytes_used(struct midi_buffer *this) +{ + return + midibuf_is_empty(this) ? + 0 : + (this->pos_write - this->pos_read + this->size - 1) % this->size + + 1; +} + +int line6_midibuf_write(struct midi_buffer *this, unsigned char *data, + int length) +{ + int bytes_free; + int length1, length2; + int skip_active_sense = 0; + + if (midibuf_is_full(this) || (length <= 0)) + return 0; + + /* skip trailing active sense */ + if (data[length - 1] == 0xfe) { + --length; + skip_active_sense = 1; + } + + bytes_free = line6_midibuf_bytes_free(this); + + if (length > bytes_free) + length = bytes_free; + + if (length > 0) { + length1 = this->size - this->pos_write; + + if (length < length1) { + /* no buffer wraparound */ + memcpy(this->buf + this->pos_write, data, length); + this->pos_write += length; + } else { + /* buffer wraparound */ + length2 = length - length1; + memcpy(this->buf + this->pos_write, data, length1); + memcpy(this->buf, data + length1, length2); + this->pos_write = length2; + } + + if (this->pos_write == this->pos_read) + this->full = 1; + } + + return length + skip_active_sense; +} + +int line6_midibuf_read(struct midi_buffer *this, unsigned char *data, + int length) +{ + int bytes_used; + int length1, length2; + int command; + int midi_length; + int repeat = 0; + int i; + + /* we need to be able to store at least a 3 byte MIDI message */ + if (length < 3) + return -EINVAL; + + if (midibuf_is_empty(this)) + return 0; + + bytes_used = line6_midibuf_bytes_used(this); + + if (length > bytes_used) + length = bytes_used; + + length1 = this->size - this->pos_read; + + /* check MIDI command length */ + command = this->buf[this->pos_read]; + + if (command & 0x80) { + midi_length = midibuf_message_length(command); + this->command_prev = command; + } else { + if (this->command_prev > 0) { + int midi_length_prev = + midibuf_message_length(this->command_prev); + + if (midi_length_prev > 0) { + midi_length = midi_length_prev - 1; + repeat = 1; + } else + midi_length = -1; + } else + midi_length = -1; + } + + if (midi_length < 0) { + /* search for end of message */ + if (length < length1) { + /* no buffer wraparound */ + for (i = 1; i < length; ++i) + if (this->buf[this->pos_read + i] & 0x80) + break; + + midi_length = i; + } else { + /* buffer wraparound */ + length2 = length - length1; + + for (i = 1; i < length1; ++i) + if (this->buf[this->pos_read + i] & 0x80) + break; + + if (i < length1) + midi_length = i; + else { + for (i = 0; i < length2; ++i) + if (this->buf[i] & 0x80) + break; + + midi_length = length1 + i; + } + } + + if (midi_length == length) + midi_length = -1; /* end of message not found */ + } + + if (midi_length < 0) { + if (!this->split) + return 0; /* command is not yet complete */ + } else { + if (length < midi_length) + return 0; /* command is not yet complete */ + + length = midi_length; + } + + if (length < length1) { + /* no buffer wraparound */ + memcpy(data + repeat, this->buf + this->pos_read, length); + this->pos_read += length; + } else { + /* buffer wraparound */ + length2 = length - length1; + memcpy(data + repeat, this->buf + this->pos_read, length1); + memcpy(data + repeat + length1, this->buf, length2); + this->pos_read = length2; + } + + if (repeat) + data[0] = this->command_prev; + + this->full = 0; + return length + repeat; +} + +int line6_midibuf_ignore(struct midi_buffer *this, int length) +{ + int bytes_used = line6_midibuf_bytes_used(this); + + if (length > bytes_used) + length = bytes_used; + + this->pos_read = (this->pos_read + length) % this->size; + this->full = 0; + return length; +} + +int line6_midibuf_skip_message(struct midi_buffer *this, unsigned short mask) +{ + int cmd = this->command_prev; + + if ((cmd >= 0x80) && (cmd < 0xf0)) + if ((mask & (1 << (cmd & 0x0f))) == 0) + return 1; + + return 0; +} + +void line6_midibuf_destroy(struct midi_buffer *this) +{ + kfree(this->buf); + this->buf = NULL; +} diff --git a/sound/usb/line6/midibuf.h b/sound/usb/line6/midibuf.h new file mode 100644 index 000000000000..707482b940e4 --- /dev/null +++ b/sound/usb/line6/midibuf.h @@ -0,0 +1,38 @@ +/* + * Line6 Linux USB driver - 0.9.1beta + * + * Copyright (C) 2004-2010 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. + * + */ + +#ifndef MIDIBUF_H +#define MIDIBUF_H + +struct midi_buffer { + unsigned char *buf; + int size; + int split; + int pos_read, pos_write; + int full; + int command_prev; +}; + +extern int line6_midibuf_bytes_used(struct midi_buffer *mb); +extern int line6_midibuf_bytes_free(struct midi_buffer *mb); +extern void line6_midibuf_destroy(struct midi_buffer *mb); +extern int line6_midibuf_ignore(struct midi_buffer *mb, int length); +extern int line6_midibuf_init(struct midi_buffer *mb, int size, int split); +extern int line6_midibuf_read(struct midi_buffer *mb, unsigned char *data, + int length); +extern void line6_midibuf_reset(struct midi_buffer *mb); +extern int line6_midibuf_skip_message(struct midi_buffer *mb, + unsigned short mask); +extern void line6_midibuf_status(struct midi_buffer *mb); +extern int line6_midibuf_write(struct midi_buffer *mb, unsigned char *data, + int length); + +#endif diff --git a/sound/usb/line6/pcm.c b/sound/usb/line6/pcm.c new file mode 100644 index 000000000000..6d4e5cd0482c --- /dev/null +++ b/sound/usb/line6/pcm.c @@ -0,0 +1,527 @@ +/* + * Line6 Linux USB driver - 0.9.1beta + * + * Copyright (C) 2004-2010 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 <linux/slab.h> +#include <sound/core.h> +#include <sound/control.h> +#include <sound/pcm.h> +#include <sound/pcm_params.h> + +#include "audio.h" +#include "capture.h" +#include "driver.h" +#include "playback.h" +#include "pod.h" + +#ifdef CONFIG_LINE6_USB_IMPULSE_RESPONSE + +static struct snd_line6_pcm *dev2pcm(struct device *dev) +{ + struct usb_interface *interface = to_usb_interface(dev); + struct usb_line6 *line6 = usb_get_intfdata(interface); + struct snd_line6_pcm *line6pcm = line6->line6pcm; + return line6pcm; +} + +/* + "read" request on "impulse_volume" special file. +*/ +static ssize_t impulse_volume_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + return sprintf(buf, "%d\n", dev2pcm(dev)->impulse_volume); +} + +/* + "write" request on "impulse_volume" special file. +*/ +static ssize_t impulse_volume_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct snd_line6_pcm *line6pcm = dev2pcm(dev); + int value; + int ret; + + ret = kstrtoint(buf, 10, &value); + if (ret < 0) + return ret; + + line6pcm->impulse_volume = value; + + if (value > 0) + line6_pcm_acquire(line6pcm, LINE6_BITS_PCM_IMPULSE); + else + line6_pcm_release(line6pcm, LINE6_BITS_PCM_IMPULSE); + + return count; +} +static DEVICE_ATTR_RW(impulse_volume); + +/* + "read" request on "impulse_period" special file. +*/ +static ssize_t impulse_period_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + return sprintf(buf, "%d\n", dev2pcm(dev)->impulse_period); +} + +/* + "write" request on "impulse_period" special file. +*/ +static ssize_t impulse_period_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + int value; + int ret; + + ret = kstrtoint(buf, 10, &value); + if (ret < 0) + return ret; + + dev2pcm(dev)->impulse_period = value; + return count; +} +static DEVICE_ATTR_RW(impulse_period); + +#endif + +static bool test_flags(unsigned long flags0, unsigned long flags1, + unsigned long mask) +{ + return ((flags0 & mask) == 0) && ((flags1 & mask) != 0); +} + +int line6_pcm_acquire(struct snd_line6_pcm *line6pcm, int channels) +{ + unsigned long flags_old, flags_new, flags_final; + int err; + + do { + flags_old = ACCESS_ONCE(line6pcm->flags); + flags_new = flags_old | channels; + } while (cmpxchg(&line6pcm->flags, flags_old, flags_new) != flags_old); + + flags_final = flags_old; + + line6pcm->prev_fbuf = NULL; + + if (test_flags(flags_old, flags_new, LINE6_BITS_CAPTURE_BUFFER)) { + /* Invoked multiple times in a row so allocate once only */ + if (!line6pcm->buffer_in) { + line6pcm->buffer_in = + kmalloc(LINE6_ISO_BUFFERS * LINE6_ISO_PACKETS * + line6pcm->max_packet_size, GFP_KERNEL); + if (!line6pcm->buffer_in) { + err = -ENOMEM; + goto pcm_acquire_error; + } + + flags_final |= channels & LINE6_BITS_CAPTURE_BUFFER; + } + } + + if (test_flags(flags_old, flags_new, LINE6_BITS_CAPTURE_STREAM)) { + /* + Waiting for completion of active URBs in the stop handler is + a bug, we therefore report an error if capturing is restarted + too soon. + */ + if (line6pcm->active_urb_in | line6pcm->unlink_urb_in) { + dev_err(line6pcm->line6->ifcdev, "Device not yet ready\n"); + return -EBUSY; + } + + line6pcm->count_in = 0; + line6pcm->prev_fsize = 0; + err = line6_submit_audio_in_all_urbs(line6pcm); + + if (err < 0) + goto pcm_acquire_error; + + flags_final |= channels & LINE6_BITS_CAPTURE_STREAM; + } + + if (test_flags(flags_old, flags_new, LINE6_BITS_PLAYBACK_BUFFER)) { + /* Invoked multiple times in a row so allocate once only */ + if (!line6pcm->buffer_out) { + line6pcm->buffer_out = + kmalloc(LINE6_ISO_BUFFERS * LINE6_ISO_PACKETS * + line6pcm->max_packet_size, GFP_KERNEL); + if (!line6pcm->buffer_out) { + err = -ENOMEM; + goto pcm_acquire_error; + } + + flags_final |= channels & LINE6_BITS_PLAYBACK_BUFFER; + } + } + + if (test_flags(flags_old, flags_new, LINE6_BITS_PLAYBACK_STREAM)) { + /* + See comment above regarding PCM restart. + */ + if (line6pcm->active_urb_out | line6pcm->unlink_urb_out) { + dev_err(line6pcm->line6->ifcdev, "Device not yet ready\n"); + return -EBUSY; + } + + line6pcm->count_out = 0; + err = line6_submit_audio_out_all_urbs(line6pcm); + + if (err < 0) + goto pcm_acquire_error; + + flags_final |= channels & LINE6_BITS_PLAYBACK_STREAM; + } + + return 0; + +pcm_acquire_error: + /* + If not all requested resources/streams could be obtained, release + those which were successfully obtained (if any). + */ + line6_pcm_release(line6pcm, flags_final & channels); + return err; +} + +int line6_pcm_release(struct snd_line6_pcm *line6pcm, int channels) +{ + unsigned long flags_old, flags_new; + + do { + flags_old = ACCESS_ONCE(line6pcm->flags); + flags_new = flags_old & ~channels; + } while (cmpxchg(&line6pcm->flags, flags_old, flags_new) != flags_old); + + if (test_flags(flags_new, flags_old, LINE6_BITS_CAPTURE_STREAM)) + line6_unlink_audio_in_urbs(line6pcm); + + if (test_flags(flags_new, flags_old, LINE6_BITS_CAPTURE_BUFFER)) { + line6_wait_clear_audio_in_urbs(line6pcm); + line6_free_capture_buffer(line6pcm); + } + + if (test_flags(flags_new, flags_old, LINE6_BITS_PLAYBACK_STREAM)) + line6_unlink_audio_out_urbs(line6pcm); + + if (test_flags(flags_new, flags_old, LINE6_BITS_PLAYBACK_BUFFER)) { + line6_wait_clear_audio_out_urbs(line6pcm); + line6_free_playback_buffer(line6pcm); + } + + return 0; +} + +/* trigger callback */ +int snd_line6_trigger(struct snd_pcm_substream *substream, int cmd) +{ + struct snd_line6_pcm *line6pcm = snd_pcm_substream_chip(substream); + struct snd_pcm_substream *s; + int err; + unsigned long flags; + + spin_lock_irqsave(&line6pcm->lock_trigger, flags); + clear_bit(LINE6_INDEX_PREPARED, &line6pcm->flags); + + snd_pcm_group_for_each_entry(s, substream) { + switch (s->stream) { + case SNDRV_PCM_STREAM_PLAYBACK: + err = snd_line6_playback_trigger(line6pcm, cmd); + + if (err < 0) { + spin_unlock_irqrestore(&line6pcm->lock_trigger, + flags); + return err; + } + + break; + + case SNDRV_PCM_STREAM_CAPTURE: + err = snd_line6_capture_trigger(line6pcm, cmd); + + if (err < 0) { + spin_unlock_irqrestore(&line6pcm->lock_trigger, + flags); + return err; + } + + break; + + default: + dev_err(line6pcm->line6->ifcdev, + "Unknown stream direction %d\n", s->stream); + } + } + + spin_unlock_irqrestore(&line6pcm->lock_trigger, flags); + return 0; +} + +/* control info callback */ +static int snd_line6_control_playback_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; + uinfo->count = 2; + uinfo->value.integer.min = 0; + uinfo->value.integer.max = 256; + return 0; +} + +/* control get callback */ +static int snd_line6_control_playback_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + int i; + struct snd_line6_pcm *line6pcm = snd_kcontrol_chip(kcontrol); + + for (i = 2; i--;) + ucontrol->value.integer.value[i] = line6pcm->volume_playback[i]; + + return 0; +} + +/* control put callback */ +static int snd_line6_control_playback_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + int i, changed = 0; + struct snd_line6_pcm *line6pcm = snd_kcontrol_chip(kcontrol); + + for (i = 2; i--;) + if (line6pcm->volume_playback[i] != + ucontrol->value.integer.value[i]) { + line6pcm->volume_playback[i] = + ucontrol->value.integer.value[i]; + changed = 1; + } + + return changed; +} + +/* control definition */ +static struct snd_kcontrol_new line6_control_playback = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "PCM Playback Volume", + .index = 0, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .info = snd_line6_control_playback_info, + .get = snd_line6_control_playback_get, + .put = snd_line6_control_playback_put +}; + +/* + Cleanup the PCM device. +*/ +static void line6_cleanup_pcm(struct snd_pcm *pcm) +{ + int i; + struct snd_line6_pcm *line6pcm = snd_pcm_chip(pcm); + +#ifdef CONFIG_LINE6_USB_IMPULSE_RESPONSE + device_remove_file(line6pcm->line6->ifcdev, &dev_attr_impulse_volume); + device_remove_file(line6pcm->line6->ifcdev, &dev_attr_impulse_period); +#endif + + for (i = LINE6_ISO_BUFFERS; i--;) { + if (line6pcm->urb_audio_out[i]) { + usb_kill_urb(line6pcm->urb_audio_out[i]); + usb_free_urb(line6pcm->urb_audio_out[i]); + } + if (line6pcm->urb_audio_in[i]) { + usb_kill_urb(line6pcm->urb_audio_in[i]); + usb_free_urb(line6pcm->urb_audio_in[i]); + } + } +} + +/* create a PCM device */ +static int snd_line6_new_pcm(struct snd_line6_pcm *line6pcm) +{ + struct snd_pcm *pcm; + int err; + + err = snd_pcm_new(line6pcm->line6->card, + (char *)line6pcm->line6->properties->name, + 0, 1, 1, &pcm); + if (err < 0) + return err; + + pcm->private_data = line6pcm; + pcm->private_free = line6_cleanup_pcm; + line6pcm->pcm = pcm; + strcpy(pcm->name, line6pcm->line6->properties->name); + + /* set operators */ + snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, + &snd_line6_playback_ops); + snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_line6_capture_ops); + + /* pre-allocation of buffers */ + snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_CONTINUOUS, + snd_dma_continuous_data + (GFP_KERNEL), 64 * 1024, + 128 * 1024); + + return 0; +} + +/* PCM device destructor */ +static int snd_line6_pcm_free(struct snd_device *device) +{ + return 0; +} + +/* + Stop substream if still running. +*/ +static void pcm_disconnect_substream(struct snd_pcm_substream *substream) +{ + if (substream->runtime && snd_pcm_running(substream)) { + snd_pcm_stream_lock_irq(substream); + snd_pcm_stop(substream, SNDRV_PCM_STATE_DISCONNECTED); + snd_pcm_stream_unlock_irq(substream); + } +} + +/* + Stop PCM stream. +*/ +void line6_pcm_disconnect(struct snd_line6_pcm *line6pcm) +{ + pcm_disconnect_substream(get_substream + (line6pcm, SNDRV_PCM_STREAM_CAPTURE)); + pcm_disconnect_substream(get_substream + (line6pcm, SNDRV_PCM_STREAM_PLAYBACK)); + line6_unlink_wait_clear_audio_out_urbs(line6pcm); + line6_unlink_wait_clear_audio_in_urbs(line6pcm); +} + +/* + Create and register the PCM device and mixer entries. + Create URBs for playback and capture. +*/ +int line6_init_pcm(struct usb_line6 *line6, + struct line6_pcm_properties *properties) +{ + static struct snd_device_ops pcm_ops = { + .dev_free = snd_line6_pcm_free, + }; + + int err; + unsigned ep_read = line6->properties->ep_audio_r; + unsigned ep_write = line6->properties->ep_audio_w; + struct snd_line6_pcm *line6pcm; + + if (!(line6->properties->capabilities & LINE6_CAP_PCM)) + return 0; /* skip PCM initialization and report success */ + + line6pcm = kzalloc(sizeof(*line6pcm), GFP_KERNEL); + + if (line6pcm == NULL) + return -ENOMEM; + + line6pcm->volume_playback[0] = line6pcm->volume_playback[1] = 255; + line6pcm->volume_monitor = 255; + line6pcm->line6 = line6; + + /* Read and write buffers are sized identically, so choose minimum */ + line6pcm->max_packet_size = min( + usb_maxpacket(line6->usbdev, + usb_rcvisocpipe(line6->usbdev, ep_read), 0), + usb_maxpacket(line6->usbdev, + usb_sndisocpipe(line6->usbdev, ep_write), 1)); + + line6pcm->properties = properties; + line6->line6pcm = line6pcm; + + /* PCM device: */ + err = snd_device_new(line6->card, SNDRV_DEV_PCM, line6, &pcm_ops); + if (err < 0) + return err; + + err = snd_line6_new_pcm(line6pcm); + if (err < 0) + return err; + + spin_lock_init(&line6pcm->lock_audio_out); + spin_lock_init(&line6pcm->lock_audio_in); + spin_lock_init(&line6pcm->lock_trigger); + + err = line6_create_audio_out_urbs(line6pcm); + if (err < 0) + return err; + + err = line6_create_audio_in_urbs(line6pcm); + if (err < 0) + return err; + + /* mixer: */ + err = + snd_ctl_add(line6->card, + snd_ctl_new1(&line6_control_playback, line6pcm)); + if (err < 0) + return err; + +#ifdef CONFIG_LINE6_USB_IMPULSE_RESPONSE + /* impulse response test: */ + err = device_create_file(line6->ifcdev, &dev_attr_impulse_volume); + if (err < 0) + return err; + + err = device_create_file(line6->ifcdev, &dev_attr_impulse_period); + if (err < 0) + return err; + + line6pcm->impulse_period = LINE6_IMPULSE_DEFAULT_PERIOD; +#endif + + return 0; +} + +/* prepare pcm callback */ +int snd_line6_prepare(struct snd_pcm_substream *substream) +{ + struct snd_line6_pcm *line6pcm = snd_pcm_substream_chip(substream); + + switch (substream->stream) { + case SNDRV_PCM_STREAM_PLAYBACK: + if ((line6pcm->flags & LINE6_BITS_PLAYBACK_STREAM) == 0) + line6_unlink_wait_clear_audio_out_urbs(line6pcm); + + break; + + case SNDRV_PCM_STREAM_CAPTURE: + if ((line6pcm->flags & LINE6_BITS_CAPTURE_STREAM) == 0) + line6_unlink_wait_clear_audio_in_urbs(line6pcm); + + break; + + default: + MISSING_CASE; + } + + if (!test_and_set_bit(LINE6_INDEX_PREPARED, &line6pcm->flags)) { + line6pcm->count_out = 0; + line6pcm->pos_out = 0; + line6pcm->pos_out_done = 0; + line6pcm->bytes_out = 0; + line6pcm->count_in = 0; + line6pcm->pos_in_done = 0; + line6pcm->bytes_in = 0; + } + + return 0; +} diff --git a/sound/usb/line6/pcm.h b/sound/usb/line6/pcm.h new file mode 100644 index 000000000000..7315e8131184 --- /dev/null +++ b/sound/usb/line6/pcm.h @@ -0,0 +1,374 @@ +/* + * Line6 Linux USB driver - 0.9.1beta + * + * Copyright (C) 2004-2010 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. + * + */ + +/* + PCM interface to POD series devices. +*/ + +#ifndef PCM_H +#define PCM_H + +#include <sound/pcm.h> + +#include "driver.h" +#include "usbdefs.h" + +/* number of URBs */ +#define LINE6_ISO_BUFFERS 2 + +/* + number of USB frames per URB + The Line6 Windows driver always transmits two frames per packet, but + the Linux driver performs significantly better (i.e., lower latency) + with only one frame per packet. +*/ +#define LINE6_ISO_PACKETS 1 + +/* in a "full speed" device (such as the PODxt Pro) this means 1ms */ +#define LINE6_ISO_INTERVAL 1 + +#ifdef CONFIG_LINE6_USB_IMPULSE_RESPONSE +#define LINE6_IMPULSE_DEFAULT_PERIOD 100 +#endif + +/* + Get substream from Line6 PCM data structure +*/ +#define get_substream(line6pcm, stream) \ + (line6pcm->pcm->streams[stream].substream) + +/* + PCM mode bits. + + There are several features of the Line6 USB driver which require PCM + data to be exchanged with the device: + *) PCM playback and capture via ALSA + *) software monitoring (for devices without hardware monitoring) + *) optional impulse response measurement + However, from the device's point of view, there is just a single + capture and playback stream, which must be shared between these + subsystems. It is therefore necessary to maintain the state of the + subsystems with respect to PCM usage. We define several constants of + the form LINE6_BIT_PCM_<subsystem>_<direction>_<resource> with the + following meanings: + *) <subsystem> is one of + -) ALSA: PCM playback and capture via ALSA + -) MONITOR: software monitoring + -) IMPULSE: optional impulse response measurement + *) <direction> is one of + -) PLAYBACK: audio output (from host to device) + -) CAPTURE: audio input (from device to host) + *) <resource> is one of + -) BUFFER: buffer required by PCM data stream + -) STREAM: actual PCM data stream + + The subsystems call line6_pcm_acquire() to acquire the (shared) + resources needed for a particular operation (e.g., allocate the buffer + for ALSA playback or start the capture stream for software monitoring). + When a resource is no longer needed, it is released by calling + line6_pcm_release(). Buffer allocation and stream startup are handled + separately to allow the ALSA kernel driver to perform them at + appropriate places (since the callback which starts a PCM stream is not + allowed to sleep). +*/ +enum { + /* individual bit indices: */ + LINE6_INDEX_PCM_ALSA_PLAYBACK_BUFFER, + LINE6_INDEX_PCM_ALSA_PLAYBACK_STREAM, + LINE6_INDEX_PCM_ALSA_CAPTURE_BUFFER, + LINE6_INDEX_PCM_ALSA_CAPTURE_STREAM, + LINE6_INDEX_PCM_MONITOR_PLAYBACK_BUFFER, + LINE6_INDEX_PCM_MONITOR_PLAYBACK_STREAM, + LINE6_INDEX_PCM_MONITOR_CAPTURE_BUFFER, + LINE6_INDEX_PCM_MONITOR_CAPTURE_STREAM, +#ifdef CONFIG_LINE6_USB_IMPULSE_RESPONSE + LINE6_INDEX_PCM_IMPULSE_PLAYBACK_BUFFER, + LINE6_INDEX_PCM_IMPULSE_PLAYBACK_STREAM, + LINE6_INDEX_PCM_IMPULSE_CAPTURE_BUFFER, + LINE6_INDEX_PCM_IMPULSE_CAPTURE_STREAM, +#endif + LINE6_INDEX_PAUSE_PLAYBACK, + LINE6_INDEX_PREPARED, + +#define LINE6_BIT(x) LINE6_BIT_ ## x = 1 << LINE6_INDEX_ ## x + + /* individual bit masks: */ + LINE6_BIT(PCM_ALSA_PLAYBACK_BUFFER), + LINE6_BIT(PCM_ALSA_PLAYBACK_STREAM), + LINE6_BIT(PCM_ALSA_CAPTURE_BUFFER), + LINE6_BIT(PCM_ALSA_CAPTURE_STREAM), + LINE6_BIT(PCM_MONITOR_PLAYBACK_BUFFER), + LINE6_BIT(PCM_MONITOR_PLAYBACK_STREAM), + LINE6_BIT(PCM_MONITOR_CAPTURE_BUFFER), + LINE6_BIT(PCM_MONITOR_CAPTURE_STREAM), +#ifdef CONFIG_LINE6_USB_IMPULSE_RESPONSE + LINE6_BIT(PCM_IMPULSE_PLAYBACK_BUFFER), + LINE6_BIT(PCM_IMPULSE_PLAYBACK_STREAM), + LINE6_BIT(PCM_IMPULSE_CAPTURE_BUFFER), + LINE6_BIT(PCM_IMPULSE_CAPTURE_STREAM), +#endif + LINE6_BIT(PAUSE_PLAYBACK), + LINE6_BIT(PREPARED), + + /* combined bit masks (by operation): */ + LINE6_BITS_PCM_ALSA_BUFFER = + LINE6_BIT_PCM_ALSA_PLAYBACK_BUFFER | + LINE6_BIT_PCM_ALSA_CAPTURE_BUFFER, + + LINE6_BITS_PCM_ALSA_STREAM = + LINE6_BIT_PCM_ALSA_PLAYBACK_STREAM | + LINE6_BIT_PCM_ALSA_CAPTURE_STREAM, + + LINE6_BITS_PCM_MONITOR = + LINE6_BIT_PCM_MONITOR_PLAYBACK_BUFFER | + LINE6_BIT_PCM_MONITOR_PLAYBACK_STREAM | + LINE6_BIT_PCM_MONITOR_CAPTURE_BUFFER | + LINE6_BIT_PCM_MONITOR_CAPTURE_STREAM, + +#ifdef CONFIG_LINE6_USB_IMPULSE_RESPONSE + LINE6_BITS_PCM_IMPULSE = + LINE6_BIT_PCM_IMPULSE_PLAYBACK_BUFFER | + LINE6_BIT_PCM_IMPULSE_PLAYBACK_STREAM | + LINE6_BIT_PCM_IMPULSE_CAPTURE_BUFFER | + LINE6_BIT_PCM_IMPULSE_CAPTURE_STREAM, +#endif + + /* combined bit masks (by direction): */ + LINE6_BITS_PLAYBACK_BUFFER = +#ifdef CONFIG_LINE6_USB_IMPULSE_RESPONSE + LINE6_BIT_PCM_IMPULSE_PLAYBACK_BUFFER | +#endif + LINE6_BIT_PCM_ALSA_PLAYBACK_BUFFER | + LINE6_BIT_PCM_MONITOR_PLAYBACK_BUFFER, + + LINE6_BITS_PLAYBACK_STREAM = +#ifdef CONFIG_LINE6_USB_IMPULSE_RESPONSE + LINE6_BIT_PCM_IMPULSE_PLAYBACK_STREAM | +#endif + LINE6_BIT_PCM_ALSA_PLAYBACK_STREAM | + LINE6_BIT_PCM_MONITOR_PLAYBACK_STREAM, + + LINE6_BITS_CAPTURE_BUFFER = +#ifdef CONFIG_LINE6_USB_IMPULSE_RESPONSE + LINE6_BIT_PCM_IMPULSE_CAPTURE_BUFFER | +#endif + LINE6_BIT_PCM_ALSA_CAPTURE_BUFFER | + LINE6_BIT_PCM_MONITOR_CAPTURE_BUFFER, + + LINE6_BITS_CAPTURE_STREAM = +#ifdef CONFIG_LINE6_USB_IMPULSE_RESPONSE + LINE6_BIT_PCM_IMPULSE_CAPTURE_STREAM | +#endif + LINE6_BIT_PCM_ALSA_CAPTURE_STREAM | + LINE6_BIT_PCM_MONITOR_CAPTURE_STREAM, + + LINE6_BITS_STREAM = + LINE6_BITS_PLAYBACK_STREAM | + LINE6_BITS_CAPTURE_STREAM +}; + +struct line6_pcm_properties { + struct snd_pcm_hardware snd_line6_playback_hw, snd_line6_capture_hw; + struct snd_pcm_hw_constraint_ratdens snd_line6_rates; + int bytes_per_frame; +}; + +struct snd_line6_pcm { + /** + Pointer back to the Line6 driver data structure. + */ + struct usb_line6 *line6; + + /** + Properties. + */ + struct line6_pcm_properties *properties; + + /** + ALSA pcm stream + */ + struct snd_pcm *pcm; + + /** + URBs for audio playback. + */ + struct urb *urb_audio_out[LINE6_ISO_BUFFERS]; + + /** + URBs for audio capture. + */ + struct urb *urb_audio_in[LINE6_ISO_BUFFERS]; + + /** + Temporary buffer for playback. + Since the packet size is not known in advance, this buffer is + large enough to store maximum size packets. + */ + unsigned char *buffer_out; + + /** + Temporary buffer for capture. + Since the packet size is not known in advance, this buffer is + large enough to store maximum size packets. + */ + unsigned char *buffer_in; + + /** + Previously captured frame (for software monitoring). + */ + unsigned char *prev_fbuf; + + /** + Size of previously captured frame (for software monitoring). + */ + int prev_fsize; + + /** + Free frame position in the playback buffer. + */ + snd_pcm_uframes_t pos_out; + + /** + Count processed bytes for playback. + This is modulo period size (to determine when a period is + finished). + */ + unsigned bytes_out; + + /** + Counter to create desired playback sample rate. + */ + unsigned count_out; + + /** + Playback period size in bytes + */ + unsigned period_out; + + /** + Processed frame position in the playback buffer. + The contents of the output ring buffer have been consumed by + the USB subsystem (i.e., sent to the USB device) up to this + position. + */ + snd_pcm_uframes_t pos_out_done; + + /** + Count processed bytes for capture. + This is modulo period size (to determine when a period is + finished). + */ + unsigned bytes_in; + + /** + Counter to create desired capture sample rate. + */ + unsigned count_in; + + /** + Capture period size in bytes + */ + unsigned period_in; + + /** + Processed frame position in the capture buffer. + The contents of the output ring buffer have been consumed by + the USB subsystem (i.e., sent to the USB device) up to this + position. + */ + snd_pcm_uframes_t pos_in_done; + + /** + Bit mask of active playback URBs. + */ + unsigned long active_urb_out; + + /** + Maximum size of USB packet. + */ + int max_packet_size; + + /** + Bit mask of active capture URBs. + */ + unsigned long active_urb_in; + + /** + Bit mask of playback URBs currently being unlinked. + */ + unsigned long unlink_urb_out; + + /** + Bit mask of capture URBs currently being unlinked. + */ + unsigned long unlink_urb_in; + + /** + Spin lock to protect updates of the playback buffer positions (not + contents!) + */ + spinlock_t lock_audio_out; + + /** + Spin lock to protect updates of the capture buffer positions (not + contents!) + */ + spinlock_t lock_audio_in; + + /** + Spin lock to protect trigger. + */ + spinlock_t lock_trigger; + + /** + PCM playback volume (left and right). + */ + int volume_playback[2]; + + /** + PCM monitor volume. + */ + int volume_monitor; + +#ifdef CONFIG_LINE6_USB_IMPULSE_RESPONSE + /** + Volume of impulse response test signal (if zero, test is disabled). + */ + int impulse_volume; + + /** + Period of impulse response test signal. + */ + int impulse_period; + + /** + Counter for impulse response test signal. + */ + int impulse_count; +#endif + + /** + Several status bits (see LINE6_BIT_*). + */ + unsigned long flags; + + int last_frame_in, last_frame_out; +}; + +extern int line6_init_pcm(struct usb_line6 *line6, + struct line6_pcm_properties *properties); +extern int snd_line6_trigger(struct snd_pcm_substream *substream, int cmd); +extern int snd_line6_prepare(struct snd_pcm_substream *substream); +extern void line6_pcm_disconnect(struct snd_line6_pcm *line6pcm); +extern int line6_pcm_acquire(struct snd_line6_pcm *line6pcm, int channels); +extern int line6_pcm_release(struct snd_line6_pcm *line6pcm, int channels); + +#endif diff --git a/sound/usb/line6/playback.c b/sound/usb/line6/playback.c new file mode 100644 index 000000000000..da2e3b8876b8 --- /dev/null +++ b/sound/usb/line6/playback.c @@ -0,0 +1,593 @@ +/* + * Line6 Linux USB driver - 0.9.1beta + * + * Copyright (C) 2004-2010 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 <linux/slab.h> +#include <sound/core.h> +#include <sound/pcm.h> +#include <sound/pcm_params.h> + +#include "audio.h" +#include "capture.h" +#include "driver.h" +#include "pcm.h" +#include "pod.h" +#include "playback.h" + +/* + Software stereo volume control. +*/ +static void change_volume(struct urb *urb_out, int volume[], + int bytes_per_frame) +{ + int chn = 0; + + if (volume[0] == 256 && volume[1] == 256) + return; /* maximum volume - no change */ + + if (bytes_per_frame == 4) { + short *p, *buf_end; + + p = (short *)urb_out->transfer_buffer; + buf_end = p + urb_out->transfer_buffer_length / sizeof(*p); + + for (; p < buf_end; ++p) { + *p = (*p * volume[chn & 1]) >> 8; + ++chn; + } + } else if (bytes_per_frame == 6) { + unsigned char *p, *buf_end; + + p = (unsigned char *)urb_out->transfer_buffer; + buf_end = p + urb_out->transfer_buffer_length; + + for (; p < buf_end; p += 3) { + int val; + + val = p[0] + (p[1] << 8) + ((signed char)p[2] << 16); + val = (val * volume[chn & 1]) >> 8; + p[0] = val; + p[1] = val >> 8; + p[2] = val >> 16; + ++chn; + } + } +} + +#ifdef CONFIG_LINE6_USB_IMPULSE_RESPONSE + +/* + Create signal for impulse response test. +*/ +static void create_impulse_test_signal(struct snd_line6_pcm *line6pcm, + struct urb *urb_out, int bytes_per_frame) +{ + int frames = urb_out->transfer_buffer_length / bytes_per_frame; + + if (bytes_per_frame == 4) { + int i; + short *pi = (short *)line6pcm->prev_fbuf; + short *po = (short *)urb_out->transfer_buffer; + + for (i = 0; i < frames; ++i) { + po[0] = pi[0]; + po[1] = 0; + pi += 2; + po += 2; + } + } else if (bytes_per_frame == 6) { + int i, j; + unsigned char *pi = line6pcm->prev_fbuf; + unsigned char *po = urb_out->transfer_buffer; + + for (i = 0; i < frames; ++i) { + for (j = 0; j < bytes_per_frame / 2; ++j) + po[j] = pi[j]; + + for (; j < bytes_per_frame; ++j) + po[j] = 0; + + pi += bytes_per_frame; + po += bytes_per_frame; + } + } + if (--line6pcm->impulse_count <= 0) { + ((unsigned char *)(urb_out->transfer_buffer))[bytes_per_frame - + 1] = + line6pcm->impulse_volume; + line6pcm->impulse_count = line6pcm->impulse_period; + } +} + +#endif + +/* + Add signal to buffer for software monitoring. +*/ +static void add_monitor_signal(struct urb *urb_out, unsigned char *signal, + int volume, int bytes_per_frame) +{ + if (volume == 0) + return; /* zero volume - no change */ + + if (bytes_per_frame == 4) { + short *pi, *po, *buf_end; + + pi = (short *)signal; + po = (short *)urb_out->transfer_buffer; + buf_end = po + urb_out->transfer_buffer_length / sizeof(*po); + + for (; po < buf_end; ++pi, ++po) + *po += (*pi * volume) >> 8; + } + + /* + We don't need to handle devices with 6 bytes per frame here + since they all support hardware monitoring. + */ +} + +/* + Find a free URB, prepare audio data, and submit URB. +*/ +static int submit_audio_out_urb(struct snd_line6_pcm *line6pcm) +{ + int index; + unsigned long flags; + int i, urb_size, urb_frames; + int ret; + const int bytes_per_frame = line6pcm->properties->bytes_per_frame; + const int frame_increment = + line6pcm->properties->snd_line6_rates.rats[0].num_min; + const int frame_factor = + line6pcm->properties->snd_line6_rates.rats[0].den * + (USB_INTERVALS_PER_SECOND / LINE6_ISO_INTERVAL); + struct urb *urb_out; + + spin_lock_irqsave(&line6pcm->lock_audio_out, flags); + index = + find_first_zero_bit(&line6pcm->active_urb_out, LINE6_ISO_BUFFERS); + + if (index < 0 || index >= LINE6_ISO_BUFFERS) { + spin_unlock_irqrestore(&line6pcm->lock_audio_out, flags); + dev_err(line6pcm->line6->ifcdev, "no free URB found\n"); + return -EINVAL; + } + + urb_out = line6pcm->urb_audio_out[index]; + urb_size = 0; + + for (i = 0; i < LINE6_ISO_PACKETS; ++i) { + /* compute frame size for given sampling rate */ + int fsize = 0; + struct usb_iso_packet_descriptor *fout = + &urb_out->iso_frame_desc[i]; + + if (line6pcm->flags & LINE6_BITS_CAPTURE_STREAM) + fsize = line6pcm->prev_fsize; + + if (fsize == 0) { + int n; + + line6pcm->count_out += frame_increment; + n = line6pcm->count_out / frame_factor; + line6pcm->count_out -= n * frame_factor; + fsize = n * bytes_per_frame; + } + + fout->offset = urb_size; + fout->length = fsize; + urb_size += fsize; + } + + if (urb_size == 0) { + /* can't determine URB size */ + spin_unlock_irqrestore(&line6pcm->lock_audio_out, flags); + dev_err(line6pcm->line6->ifcdev, "driver bug: urb_size = 0\n"); + return -EINVAL; + } + + urb_frames = urb_size / bytes_per_frame; + urb_out->transfer_buffer = + line6pcm->buffer_out + + index * LINE6_ISO_PACKETS * line6pcm->max_packet_size; + urb_out->transfer_buffer_length = urb_size; + urb_out->context = line6pcm; + + if (test_bit(LINE6_INDEX_PCM_ALSA_PLAYBACK_STREAM, &line6pcm->flags) && + !test_bit(LINE6_INDEX_PAUSE_PLAYBACK, &line6pcm->flags)) { + struct snd_pcm_runtime *runtime = + get_substream(line6pcm, SNDRV_PCM_STREAM_PLAYBACK)->runtime; + + if (line6pcm->pos_out + urb_frames > runtime->buffer_size) { + /* + The transferred area goes over buffer boundary, + copy the data to the temp buffer. + */ + int len; + + len = runtime->buffer_size - line6pcm->pos_out; + + if (len > 0) { + memcpy(urb_out->transfer_buffer, + runtime->dma_area + + line6pcm->pos_out * bytes_per_frame, + len * bytes_per_frame); + memcpy(urb_out->transfer_buffer + + len * bytes_per_frame, runtime->dma_area, + (urb_frames - len) * bytes_per_frame); + } else + dev_err(line6pcm->line6->ifcdev, "driver bug: len = %d\n", + len); + } else { + memcpy(urb_out->transfer_buffer, + runtime->dma_area + + line6pcm->pos_out * bytes_per_frame, + urb_out->transfer_buffer_length); + } + + line6pcm->pos_out += urb_frames; + if (line6pcm->pos_out >= runtime->buffer_size) + line6pcm->pos_out -= runtime->buffer_size; + } else { + memset(urb_out->transfer_buffer, 0, + urb_out->transfer_buffer_length); + } + + change_volume(urb_out, line6pcm->volume_playback, bytes_per_frame); + + if (line6pcm->prev_fbuf != NULL) { +#ifdef CONFIG_LINE6_USB_IMPULSE_RESPONSE + if (line6pcm->flags & LINE6_BITS_PCM_IMPULSE) { + create_impulse_test_signal(line6pcm, urb_out, + bytes_per_frame); + if (line6pcm->flags & + LINE6_BIT_PCM_ALSA_CAPTURE_STREAM) { + line6_capture_copy(line6pcm, + urb_out->transfer_buffer, + urb_out-> + transfer_buffer_length); + line6_capture_check_period(line6pcm, + urb_out->transfer_buffer_length); + } + } else { +#endif + if (! + (line6pcm->line6-> + properties->capabilities & LINE6_CAP_HWMON) + && (line6pcm->flags & LINE6_BITS_PLAYBACK_STREAM) + && (line6pcm->flags & LINE6_BITS_CAPTURE_STREAM)) + add_monitor_signal(urb_out, line6pcm->prev_fbuf, + line6pcm->volume_monitor, + bytes_per_frame); +#ifdef CONFIG_LINE6_USB_IMPULSE_RESPONSE + } +#endif + } + + ret = usb_submit_urb(urb_out, GFP_ATOMIC); + + if (ret == 0) + set_bit(index, &line6pcm->active_urb_out); + else + dev_err(line6pcm->line6->ifcdev, + "URB out #%d submission failed (%d)\n", index, ret); + + spin_unlock_irqrestore(&line6pcm->lock_audio_out, flags); + return 0; +} + +/* + Submit all currently available playback URBs. +*/ +int line6_submit_audio_out_all_urbs(struct snd_line6_pcm *line6pcm) +{ + int ret, i; + + for (i = 0; i < LINE6_ISO_BUFFERS; ++i) { + ret = submit_audio_out_urb(line6pcm); + if (ret < 0) + return ret; + } + + return 0; +} + +/* + Unlink all currently active playback URBs. +*/ +void line6_unlink_audio_out_urbs(struct snd_line6_pcm *line6pcm) +{ + unsigned int i; + + for (i = LINE6_ISO_BUFFERS; i--;) { + if (test_bit(i, &line6pcm->active_urb_out)) { + if (!test_and_set_bit(i, &line6pcm->unlink_urb_out)) { + struct urb *u = line6pcm->urb_audio_out[i]; + + usb_unlink_urb(u); + } + } + } +} + +/* + Wait until unlinking of all currently active playback URBs has been + finished. +*/ +void line6_wait_clear_audio_out_urbs(struct snd_line6_pcm *line6pcm) +{ + int timeout = HZ; + unsigned int i; + int alive; + + do { + alive = 0; + for (i = LINE6_ISO_BUFFERS; i--;) { + if (test_bit(i, &line6pcm->active_urb_out)) + alive++; + } + if (!alive) + break; + set_current_state(TASK_UNINTERRUPTIBLE); + schedule_timeout(1); + } while (--timeout > 0); + if (alive) + snd_printk(KERN_ERR "timeout: still %d active urbs..\n", alive); +} + +/* + Unlink all currently active playback URBs, and wait for finishing. +*/ +void line6_unlink_wait_clear_audio_out_urbs(struct snd_line6_pcm *line6pcm) +{ + line6_unlink_audio_out_urbs(line6pcm); + line6_wait_clear_audio_out_urbs(line6pcm); +} + +void line6_free_playback_buffer(struct snd_line6_pcm *line6pcm) +{ + kfree(line6pcm->buffer_out); + line6pcm->buffer_out = NULL; +} + +/* + Callback for completed playback URB. +*/ +static void audio_out_callback(struct urb *urb) +{ + int i, index, length = 0, shutdown = 0; + unsigned long flags; + struct snd_line6_pcm *line6pcm = (struct snd_line6_pcm *)urb->context; + struct snd_pcm_substream *substream = + get_substream(line6pcm, SNDRV_PCM_STREAM_PLAYBACK); + +#if USE_CLEAR_BUFFER_WORKAROUND + memset(urb->transfer_buffer, 0, urb->transfer_buffer_length); +#endif + + line6pcm->last_frame_out = urb->start_frame; + + /* find index of URB */ + for (index = LINE6_ISO_BUFFERS; index--;) + if (urb == line6pcm->urb_audio_out[index]) + break; + + if (index < 0) + return; /* URB has been unlinked asynchronously */ + + for (i = LINE6_ISO_PACKETS; i--;) + length += urb->iso_frame_desc[i].length; + + spin_lock_irqsave(&line6pcm->lock_audio_out, flags); + + if (test_bit(LINE6_INDEX_PCM_ALSA_PLAYBACK_STREAM, &line6pcm->flags)) { + struct snd_pcm_runtime *runtime = substream->runtime; + + line6pcm->pos_out_done += + length / line6pcm->properties->bytes_per_frame; + + if (line6pcm->pos_out_done >= runtime->buffer_size) + line6pcm->pos_out_done -= runtime->buffer_size; + } + + clear_bit(index, &line6pcm->active_urb_out); + + for (i = LINE6_ISO_PACKETS; i--;) + if (urb->iso_frame_desc[i].status == -EXDEV) { + shutdown = 1; + break; + } + + if (test_and_clear_bit(index, &line6pcm->unlink_urb_out)) + shutdown = 1; + + spin_unlock_irqrestore(&line6pcm->lock_audio_out, flags); + + if (!shutdown) { + submit_audio_out_urb(line6pcm); + + if (test_bit(LINE6_INDEX_PCM_ALSA_PLAYBACK_STREAM, + &line6pcm->flags)) { + line6pcm->bytes_out += length; + if (line6pcm->bytes_out >= line6pcm->period_out) { + line6pcm->bytes_out %= line6pcm->period_out; + snd_pcm_period_elapsed(substream); + } + } + } +} + +/* open playback callback */ +static int snd_line6_playback_open(struct snd_pcm_substream *substream) +{ + int err; + struct snd_pcm_runtime *runtime = substream->runtime; + struct snd_line6_pcm *line6pcm = snd_pcm_substream_chip(substream); + + err = snd_pcm_hw_constraint_ratdens(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, + (&line6pcm-> + properties->snd_line6_rates)); + if (err < 0) + return err; + + runtime->hw = line6pcm->properties->snd_line6_playback_hw; + return 0; +} + +/* close playback callback */ +static int snd_line6_playback_close(struct snd_pcm_substream *substream) +{ + return 0; +} + +/* hw_params playback callback */ +static int snd_line6_playback_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *hw_params) +{ + int ret; + struct snd_line6_pcm *line6pcm = snd_pcm_substream_chip(substream); + + /* -- Florian Demski [FD] */ + /* don't ask me why, but this fixes the bug on my machine */ + if (line6pcm == NULL) { + if (substream->pcm == NULL) + return -ENOMEM; + if (substream->pcm->private_data == NULL) + return -ENOMEM; + substream->private_data = substream->pcm->private_data; + line6pcm = snd_pcm_substream_chip(substream); + } + /* -- [FD] end */ + + ret = line6_pcm_acquire(line6pcm, LINE6_BIT_PCM_ALSA_PLAYBACK_BUFFER); + + if (ret < 0) + return ret; + + ret = snd_pcm_lib_malloc_pages(substream, + params_buffer_bytes(hw_params)); + if (ret < 0) { + line6_pcm_release(line6pcm, LINE6_BIT_PCM_ALSA_PLAYBACK_BUFFER); + return ret; + } + + line6pcm->period_out = params_period_bytes(hw_params); + return 0; +} + +/* hw_free playback callback */ +static int snd_line6_playback_hw_free(struct snd_pcm_substream *substream) +{ + struct snd_line6_pcm *line6pcm = snd_pcm_substream_chip(substream); + + line6_pcm_release(line6pcm, LINE6_BIT_PCM_ALSA_PLAYBACK_BUFFER); + return snd_pcm_lib_free_pages(substream); +} + +/* trigger playback callback */ +int snd_line6_playback_trigger(struct snd_line6_pcm *line6pcm, int cmd) +{ + int err; + + switch (cmd) { + case SNDRV_PCM_TRIGGER_START: +#ifdef CONFIG_PM + case SNDRV_PCM_TRIGGER_RESUME: +#endif + err = line6_pcm_acquire(line6pcm, + LINE6_BIT_PCM_ALSA_PLAYBACK_STREAM); + + if (err < 0) + return err; + + break; + + case SNDRV_PCM_TRIGGER_STOP: +#ifdef CONFIG_PM + case SNDRV_PCM_TRIGGER_SUSPEND: +#endif + err = line6_pcm_release(line6pcm, + LINE6_BIT_PCM_ALSA_PLAYBACK_STREAM); + + if (err < 0) + return err; + + break; + + case SNDRV_PCM_TRIGGER_PAUSE_PUSH: + set_bit(LINE6_INDEX_PAUSE_PLAYBACK, &line6pcm->flags); + break; + + case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: + clear_bit(LINE6_INDEX_PAUSE_PLAYBACK, &line6pcm->flags); + break; + + default: + return -EINVAL; + } + + return 0; +} + +/* playback pointer callback */ +static snd_pcm_uframes_t +snd_line6_playback_pointer(struct snd_pcm_substream *substream) +{ + struct snd_line6_pcm *line6pcm = snd_pcm_substream_chip(substream); + + return line6pcm->pos_out_done; +} + +/* playback operators */ +struct snd_pcm_ops snd_line6_playback_ops = { + .open = snd_line6_playback_open, + .close = snd_line6_playback_close, + .ioctl = snd_pcm_lib_ioctl, + .hw_params = snd_line6_playback_hw_params, + .hw_free = snd_line6_playback_hw_free, + .prepare = snd_line6_prepare, + .trigger = snd_line6_trigger, + .pointer = snd_line6_playback_pointer, +}; + +int line6_create_audio_out_urbs(struct snd_line6_pcm *line6pcm) +{ + struct usb_line6 *line6 = line6pcm->line6; + int i; + + /* create audio URBs and fill in constant values: */ + for (i = 0; i < LINE6_ISO_BUFFERS; ++i) { + struct urb *urb; + + /* URB for audio out: */ + urb = line6pcm->urb_audio_out[i] = + usb_alloc_urb(LINE6_ISO_PACKETS, GFP_KERNEL); + + if (urb == NULL) { + dev_err(line6->ifcdev, "Out of memory\n"); + return -ENOMEM; + } + + urb->dev = line6->usbdev; + urb->pipe = + usb_sndisocpipe(line6->usbdev, + line6->properties->ep_audio_w & + USB_ENDPOINT_NUMBER_MASK); + urb->transfer_flags = URB_ISO_ASAP; + urb->start_frame = -1; + urb->number_of_packets = LINE6_ISO_PACKETS; + urb->interval = LINE6_ISO_INTERVAL; + urb->error_count = 0; + urb->complete = audio_out_callback; + } + + return 0; +} diff --git a/sound/usb/line6/playback.h b/sound/usb/line6/playback.h new file mode 100644 index 000000000000..743bd6f74c57 --- /dev/null +++ b/sound/usb/line6/playback.h @@ -0,0 +1,41 @@ +/* + * Line6 Linux USB driver - 0.9.1beta + * + * Copyright (C) 2004-2010 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. + * + */ + +#ifndef PLAYBACK_H +#define PLAYBACK_H + +#include <sound/pcm.h> + +#include "driver.h" + +/* + * When the TonePort is used with jack in full duplex mode and the outputs are + * not connected, the software monitor produces an ugly noise since everything + * written to the output buffer (i.e., the input signal) will be repeated in + * the next period (sounds like a delay effect). As a workaround, the output + * buffer is cleared after the data have been read, but there must be a better + * solution. Until one is found, this workaround can be used to fix the + * problem. + */ +#define USE_CLEAR_BUFFER_WORKAROUND 1 + +extern struct snd_pcm_ops snd_line6_playback_ops; + +extern int line6_create_audio_out_urbs(struct snd_line6_pcm *line6pcm); +extern void line6_free_playback_buffer(struct snd_line6_pcm *line6pcm); +extern int line6_submit_audio_out_all_urbs(struct snd_line6_pcm *line6pcm); +extern void line6_unlink_audio_out_urbs(struct snd_line6_pcm *line6pcm); +extern void line6_unlink_wait_clear_audio_out_urbs(struct snd_line6_pcm + *line6pcm); +extern void line6_wait_clear_audio_out_urbs(struct snd_line6_pcm *line6pcm); +extern int snd_line6_playback_trigger(struct snd_line6_pcm *line6pcm, int cmd); + +#endif diff --git a/sound/usb/line6/pod.c b/sound/usb/line6/pod.c new file mode 100644 index 000000000000..85a43631996e --- /dev/null +++ b/sound/usb/line6/pod.c @@ -0,0 +1,453 @@ +/* + * Line6 Linux USB driver - 0.9.1beta + * + * Copyright (C) 2004-2010 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 <linux/slab.h> +#include <linux/wait.h> +#include <sound/control.h> + +#include "audio.h" +#include "capture.h" +#include "driver.h" +#include "playback.h" +#include "pod.h" + +#define POD_SYSEX_CODE 3 +#define POD_BYTES_PER_FRAME 6 /* 24bit audio (stereo) */ + +/* *INDENT-OFF* */ + +enum { + 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 + + /* dumps entire internal memory of PODxt Pro */ + /* POD_SYSEX_DUMPMEM2 = 0x76 */ +}; + +enum { + POD_MONITOR_LEVEL = 0x04, + POD_SYSTEM_INVALID = 0x10000 +}; + +/* *INDENT-ON* */ + +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 | +#ifdef CONFIG_PM + SNDRV_PCM_INFO_RESUME | +#endif + 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 = 64, + .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 | +#ifdef CONFIG_PM + SNDRV_PCM_INFO_RESUME | +#endif + 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 = 64, + .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_version_header[] = { + 0xf2, 0x7e, 0x7f, 0x06, 0x02 +}; + +/* forward declarations: */ +static void pod_startup2(unsigned long data); +static void pod_startup3(struct usb_line6_pod *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); +} + +/* + Process a completely received message. +*/ +static void line6_pod_process_message(struct usb_line6 *line6) +{ + struct usb_line6_pod *pod = (struct usb_line6_pod *) line6; + const unsigned char *buf = pod->line6.buffer_message; + + if (memcmp(buf, pod_version_header, sizeof(pod_version_header)) == 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_startup3(pod); + return; + } + + /* Only look for sysex messages from this device */ + if (buf[0] != (LINE6_SYSEX_BEGIN | LINE6_CHANNEL_DEVICE) && + buf[0] != (LINE6_SYSEX_BEGIN | LINE6_CHANNEL_UNKNOWN)) { + return; + } + if (memcmp(buf + 1, line6_midi_id, sizeof(line6_midi_id)) != 0) + return; + + if (buf[5] == POD_SYSEX_SYSTEM && buf[6] == POD_MONITOR_LEVEL) { + short value = ((int)buf[7] << 12) | ((int)buf[8] << 8) | + ((int)buf[9] << 4) | (int)buf[10]; + pod->monitor_level = value; + } +} + +/* + Send system parameter (from integer). +*/ +static int pod_set_system_param_int(struct usb_line6_pod *pod, int value, + int code) +{ + char *sysex; + static const int size = 5; + + sysex = pod_alloc_sysex_buffer(pod, POD_SYSEX_SYSTEM, size); + if (!sysex) + return -ENOMEM; + 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 0; +} + +/* + "read" request on "serial_number" special file. +*/ +static ssize_t serial_number_show(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 firmware_version_show(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 device_id_show(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); +} + +/* + POD startup procedure. + This is a sequence of functions with special requirements (e.g., must + not run immediately after initialization, must not run in interrupt + context). After the last one has finished, the device is ready to use. +*/ + +static void pod_startup1(struct usb_line6_pod *pod) +{ + CHECK_STARTUP_PROGRESS(pod->startup_progress, POD_STARTUP_INIT); + + /* delay startup procedure: */ + line6_start_timer(&pod->startup_timer, POD_STARTUP_DELAY, pod_startup2, + (unsigned long)pod); +} + +static void pod_startup2(unsigned long data) +{ + struct usb_line6_pod *pod = (struct usb_line6_pod *)data; + struct usb_line6 *line6 = &pod->line6; + + CHECK_STARTUP_PROGRESS(pod->startup_progress, POD_STARTUP_VERSIONREQ); + + /* request firmware version: */ + line6_version_request_async(line6); +} + +static void pod_startup3(struct usb_line6_pod *pod) +{ + CHECK_STARTUP_PROGRESS(pod->startup_progress, POD_STARTUP_WORKQUEUE); + + /* schedule work for global work queue: */ + schedule_work(&pod->startup_work); +} + +static void pod_startup4(struct work_struct *work) +{ + struct usb_line6_pod *pod = + container_of(work, struct usb_line6_pod, startup_work); + struct usb_line6 *line6 = &pod->line6; + + CHECK_STARTUP_PROGRESS(pod->startup_progress, POD_STARTUP_SETUP); + + /* serial number: */ + line6_read_serial_number(&pod->line6, &pod->serial_number); + + /* ALSA audio interface: */ + line6_register_audio(line6); +} + +/* POD special files: */ +static DEVICE_ATTR_RO(device_id); +static DEVICE_ATTR_RO(firmware_version); +static DEVICE_ATTR_RO(serial_number); + +/* control info callback */ +static int snd_pod_control_monitor_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; + uinfo->count = 1; + uinfo->value.integer.min = 0; + uinfo->value.integer.max = 65535; + return 0; +} + +/* control get callback */ +static int snd_pod_control_monitor_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_line6_pcm *line6pcm = snd_kcontrol_chip(kcontrol); + struct usb_line6_pod *pod = (struct usb_line6_pod *)line6pcm->line6; + + ucontrol->value.integer.value[0] = pod->monitor_level; + return 0; +} + +/* control put callback */ +static int snd_pod_control_monitor_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_line6_pcm *line6pcm = snd_kcontrol_chip(kcontrol); + struct usb_line6_pod *pod = (struct usb_line6_pod *)line6pcm->line6; + + if (ucontrol->value.integer.value[0] == pod->monitor_level) + return 0; + + pod->monitor_level = ucontrol->value.integer.value[0]; + pod_set_system_param_int(pod, ucontrol->value.integer.value[0], + POD_MONITOR_LEVEL); + return 1; +} + +/* control definition */ +static struct snd_kcontrol_new pod_control_monitor = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "Monitor Playback Volume", + .index = 0, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .info = snd_pod_control_monitor_info, + .get = snd_pod_control_monitor_get, + .put = snd_pod_control_monitor_put +}; + +/* + POD destructor. +*/ +static void pod_destruct(struct usb_interface *interface) +{ + struct usb_line6_pod *pod = usb_get_intfdata(interface); + + if (pod == NULL) + return; + line6_cleanup_audio(&pod->line6); + + del_timer(&pod->startup_timer); + cancel_work_sync(&pod->startup_work); +} + +/* + POD device disconnected. +*/ +static void line6_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) + line6_pcm_disconnect(line6pcm); + + if (dev != NULL) { + /* remove sysfs entries: */ + device_remove_file(dev, &dev_attr_device_id); + device_remove_file(dev, &dev_attr_firmware_version); + device_remove_file(dev, &dev_attr_serial_number); + } + } + + pod_destruct(interface); +} + +/* + Create sysfs entries. +*/ +static int pod_create_files2(struct device *dev) +{ + int err; + + CHECK_RETURN(device_create_file(dev, &dev_attr_device_id)); + CHECK_RETURN(device_create_file(dev, &dev_attr_firmware_version)); + CHECK_RETURN(device_create_file(dev, &dev_attr_serial_number)); + return 0; +} + +/* + Try to init POD device. +*/ +static int pod_try_init(struct usb_interface *interface, + struct usb_line6 *line6) +{ + int err; + struct usb_line6_pod *pod = (struct usb_line6_pod *) line6; + + line6->process_message = line6_pod_process_message; + line6->disconnect = line6_pod_disconnect; + + init_timer(&pod->startup_timer); + INIT_WORK(&pod->startup_work, pod_startup4); + + if ((interface == NULL) || (pod == NULL)) + return -ENODEV; + + /* create sysfs entries: */ + err = pod_create_files2(&interface->dev); + if (err < 0) + return err; + + /* initialize audio system: */ + err = line6_init_audio(line6); + if (err < 0) + return err; + + /* initialize MIDI subsystem: */ + err = line6_init_midi(line6); + if (err < 0) + return err; + + /* initialize PCM subsystem: */ + err = line6_init_pcm(line6, &pod_pcm_properties); + if (err < 0) + return err; + + /* register monitor control: */ + err = snd_ctl_add(line6->card, + snd_ctl_new1(&pod_control_monitor, line6->line6pcm)); + if (err < 0) + return err; + + /* + When the sound card is registered at this point, the PODxt Live + displays "Invalid Code Error 07", so we do it later in the event + handler. + */ + + if (pod->line6.properties->capabilities & LINE6_CAP_CONTROL) { + pod->monitor_level = POD_SYSTEM_INVALID; + + /* initiate startup procedure: */ + pod_startup1(pod); + } + + return 0; +} + +/* + Init POD device (and clean up in case of failure). +*/ +int line6_pod_init(struct usb_interface *interface, struct usb_line6 *line6) +{ + int err = pod_try_init(interface, line6); + + if (err < 0) + pod_destruct(interface); + + return err; +} diff --git a/sound/usb/line6/pod.h b/sound/usb/line6/pod.h new file mode 100644 index 000000000000..87a8f0fa9cba --- /dev/null +++ b/sound/usb/line6/pod.h @@ -0,0 +1,92 @@ +/* + * Line6 Linux USB driver - 0.9.1beta + * + * Copyright (C) 2004-2010 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. + * + */ + +#ifndef POD_H +#define POD_H + +#include <linux/interrupt.h> +#include <linux/spinlock.h> +#include <linux/usb.h> + +#include <sound/core.h> + +#include "driver.h" + +/* + Locate name in binary program dump +*/ +#define POD_NAME_OFFSET 0 +#define POD_NAME_LENGTH 16 + +/* + Other constants +*/ +#define POD_CONTROL_SIZE 0x80 +#define POD_BUFSIZE_DUMPREQ 7 +#define POD_STARTUP_DELAY 1000 + +/* + Stages of POD startup procedure +*/ +enum { + POD_STARTUP_INIT = 1, + POD_STARTUP_VERSIONREQ, + POD_STARTUP_WORKQUEUE, + POD_STARTUP_SETUP, + POD_STARTUP_LAST = POD_STARTUP_SETUP - 1 +}; + +struct usb_line6_pod { + /** + Generic Line6 USB data. + */ + struct usb_line6 line6; + + /** + Instrument monitor level. + */ + int monitor_level; + + /** + Timer for device initializaton. + */ + struct timer_list startup_timer; + + /** + Work handler for device initializaton. + */ + struct work_struct startup_work; + + /** + Current progress in startup procedure. + */ + int startup_progress; + + /** + Serial number of device. + */ + int serial_number; + + /** + Firmware version (x 100). + */ + int firmware_version; + + /** + Device ID. + */ + int device_id; +}; + +extern int line6_pod_init(struct usb_interface *interface, + struct usb_line6 *line6); + +#endif diff --git a/sound/usb/line6/podhd.c b/sound/usb/line6/podhd.c new file mode 100644 index 000000000000..27c5402cece8 --- /dev/null +++ b/sound/usb/line6/podhd.c @@ -0,0 +1,156 @@ +/* + * Line6 Pod HD + * + * Copyright (C) 2011 Stefan Hajnoczi <stefanha@gmail.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation, version 2. + * + */ + +#include <sound/core.h> +#include <sound/pcm.h> + +#include "audio.h" +#include "driver.h" +#include "pcm.h" +#include "podhd.h" + +#define PODHD_BYTES_PER_FRAME 6 /* 24bit audio (stereo) */ + +static struct snd_ratden podhd_ratden = { + .num_min = 48000, + .num_max = 48000, + .num_step = 1, + .den = 1, +}; + +static struct line6_pcm_properties podhd_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 | +#ifdef CONFIG_PM + SNDRV_PCM_INFO_RESUME | +#endif + SNDRV_PCM_INFO_SYNC_START), + .formats = SNDRV_PCM_FMTBIT_S24_3LE, + .rates = SNDRV_PCM_RATE_48000, + .rate_min = 48000, + .rate_max = 48000, + .channels_min = 2, + .channels_max = 2, + .buffer_bytes_max = 60000, + .period_bytes_min = 64, + .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 | +#ifdef CONFIG_PM + SNDRV_PCM_INFO_RESUME | +#endif + SNDRV_PCM_INFO_SYNC_START), + .formats = SNDRV_PCM_FMTBIT_S24_3LE, + .rates = SNDRV_PCM_RATE_48000, + .rate_min = 48000, + .rate_max = 48000, + .channels_min = 2, + .channels_max = 2, + .buffer_bytes_max = 60000, + .period_bytes_min = 64, + .period_bytes_max = 8192, + .periods_min = 1, + .periods_max = 1024}, + .snd_line6_rates = { + .nrats = 1, + .rats = &podhd_ratden}, + .bytes_per_frame = PODHD_BYTES_PER_FRAME +}; + +/* + POD HD destructor. +*/ +static void podhd_destruct(struct usb_interface *interface) +{ + struct usb_line6_podhd *podhd = usb_get_intfdata(interface); + + if (podhd == NULL) + return; + line6_cleanup_audio(&podhd->line6); +} + +/* + POD HD device disconnected. +*/ +static void line6_podhd_disconnect(struct usb_interface *interface) +{ + struct usb_line6_podhd *podhd; + + if (interface == NULL) + return; + podhd = usb_get_intfdata(interface); + + if (podhd != NULL) { + struct snd_line6_pcm *line6pcm = podhd->line6.line6pcm; + + if (line6pcm != NULL) + line6_pcm_disconnect(line6pcm); + } + + podhd_destruct(interface); +} + +/* + Try to init POD HD device. +*/ +static int podhd_try_init(struct usb_interface *interface, + struct usb_line6_podhd *podhd) +{ + int err; + struct usb_line6 *line6 = &podhd->line6; + + if ((interface == NULL) || (podhd == NULL)) + return -ENODEV; + + line6->disconnect = line6_podhd_disconnect; + + /* initialize audio system: */ + err = line6_init_audio(line6); + if (err < 0) + return err; + + /* initialize MIDI subsystem: */ + err = line6_init_midi(line6); + if (err < 0) + return err; + + /* initialize PCM subsystem: */ + err = line6_init_pcm(line6, &podhd_pcm_properties); + if (err < 0) + return err; + + /* register USB audio system: */ + err = line6_register_audio(line6); + return err; +} + +/* + Init POD HD device (and clean up in case of failure). +*/ +int line6_podhd_init(struct usb_interface *interface, struct usb_line6 *line6) +{ + struct usb_line6_podhd *podhd = (struct usb_line6_podhd *) line6; + int err = podhd_try_init(interface, podhd); + + if (err < 0) + podhd_destruct(interface); + + return err; +} diff --git a/sound/usb/line6/podhd.h b/sound/usb/line6/podhd.h new file mode 100644 index 000000000000..a14f711f9725 --- /dev/null +++ b/sound/usb/line6/podhd.h @@ -0,0 +1,29 @@ +/* + * Line6 Pod HD + * + * Copyright (C) 2011 Stefan Hajnoczi <stefanha@gmail.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation, version 2. + * + */ + +#ifndef PODHD_H +#define PODHD_H + +#include <linux/usb.h> + +#include "driver.h" + +struct usb_line6_podhd { + /** + Generic Line6 USB data. + */ + struct usb_line6 line6; +}; + +extern int line6_podhd_init(struct usb_interface *interface, + struct usb_line6 *line6); + +#endif /* PODHD_H */ diff --git a/sound/usb/line6/revision.h b/sound/usb/line6/revision.h new file mode 100644 index 000000000000..b4eee2b73831 --- /dev/null +++ b/sound/usb/line6/revision.h @@ -0,0 +1,4 @@ +#ifndef DRIVER_REVISION +/* current subversion revision */ +#define DRIVER_REVISION " (904)" +#endif diff --git a/sound/usb/line6/toneport.c b/sound/usb/line6/toneport.c new file mode 100644 index 000000000000..aae78d8a82d9 --- /dev/null +++ b/sound/usb/line6/toneport.c @@ -0,0 +1,465 @@ +/* + * Line6 Linux USB driver - 0.9.1beta + * + * Copyright (C) 2004-2010 Markus Grabner (grabner@icg.tugraz.at) + * Emil Myhrman (emil.myhrman@gmail.com) + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation, version 2. + * + */ + +#include <linux/wait.h> +#include <sound/control.h> + +#include "audio.h" +#include "capture.h" +#include "driver.h" +#include "playback.h" +#include "toneport.h" + +static int toneport_send_cmd(struct usb_device *usbdev, int cmd1, int cmd2); + +#define TONEPORT_PCM_DELAY 1 + +static struct snd_ratden toneport_ratden = { + .num_min = 44100, + .num_max = 44100, + .num_step = 1, + .den = 1 +}; + +static struct line6_pcm_properties toneport_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 | +#ifdef CONFIG_PM + SNDRV_PCM_INFO_RESUME | +#endif + SNDRV_PCM_INFO_SYNC_START), + .formats = SNDRV_PCM_FMTBIT_S16_LE, + .rates = SNDRV_PCM_RATE_KNOT, + .rate_min = 44100, + .rate_max = 44100, + .channels_min = 2, + .channels_max = 2, + .buffer_bytes_max = 60000, + .period_bytes_min = 64, + .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 | +#ifdef CONFIG_PM + SNDRV_PCM_INFO_RESUME | +#endif + SNDRV_PCM_INFO_SYNC_START), + .formats = SNDRV_PCM_FMTBIT_S16_LE, + .rates = SNDRV_PCM_RATE_KNOT, + .rate_min = 44100, + .rate_max = 44100, + .channels_min = 2, + .channels_max = 2, + .buffer_bytes_max = 60000, + .period_bytes_min = 64, + .period_bytes_max = 8192, + .periods_min = 1, + .periods_max = 1024}, + .snd_line6_rates = { + .nrats = 1, + .rats = &toneport_ratden}, + .bytes_per_frame = 4 +}; + +/* + For the led on Guitarport. + Brightness goes from 0x00 to 0x26. Set a value above this to have led + blink. + (void cmd_0x02(byte red, byte green) +*/ +static int led_red = 0x00; +static int led_green = 0x26; + +static const struct { + const char *name; + int code; +} toneport_source_info[] = { + {"Microphone", 0x0a01}, + {"Line", 0x0801}, + {"Instrument", 0x0b01}, + {"Inst & Mic", 0x0901} +}; + +static bool toneport_has_led(enum line6_device_type type) +{ + return + (type == LINE6_GUITARPORT) || + (type == LINE6_TONEPORT_GX); + /* add your device here if you are missing support for the LEDs */ +} + +static void toneport_update_led(struct device *dev) +{ + struct usb_interface *interface = to_usb_interface(dev); + struct usb_line6_toneport *tp = usb_get_intfdata(interface); + struct usb_line6 *line6; + + if (!tp) + return; + + line6 = &tp->line6; + if (line6) + toneport_send_cmd(line6->usbdev, (led_red << 8) | 0x0002, + led_green); +} + +static ssize_t toneport_set_led_red(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + int retval; + + retval = kstrtoint(buf, 10, &led_red); + if (retval) + return retval; + + toneport_update_led(dev); + return count; +} + +static ssize_t toneport_set_led_green(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + int retval; + + retval = kstrtoint(buf, 10, &led_green); + if (retval) + return retval; + + toneport_update_led(dev); + return count; +} + +static DEVICE_ATTR(led_red, S_IWUSR | S_IRUGO, line6_nop_read, + toneport_set_led_red); +static DEVICE_ATTR(led_green, S_IWUSR | S_IRUGO, line6_nop_read, + toneport_set_led_green); + +static int toneport_send_cmd(struct usb_device *usbdev, int cmd1, int cmd2) +{ + int ret; + + ret = usb_control_msg(usbdev, usb_sndctrlpipe(usbdev, 0), 0x67, + USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT, + cmd1, cmd2, NULL, 0, LINE6_TIMEOUT * HZ); + + if (ret < 0) { + dev_err(&usbdev->dev, "send failed (error %d)\n", ret); + return ret; + } + + return 0; +} + +/* monitor info callback */ +static int snd_toneport_monitor_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; + uinfo->count = 1; + uinfo->value.integer.min = 0; + uinfo->value.integer.max = 256; + return 0; +} + +/* monitor get callback */ +static int snd_toneport_monitor_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_line6_pcm *line6pcm = snd_kcontrol_chip(kcontrol); + + ucontrol->value.integer.value[0] = line6pcm->volume_monitor; + return 0; +} + +/* monitor put callback */ +static int snd_toneport_monitor_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_line6_pcm *line6pcm = snd_kcontrol_chip(kcontrol); + + if (ucontrol->value.integer.value[0] == line6pcm->volume_monitor) + return 0; + + line6pcm->volume_monitor = ucontrol->value.integer.value[0]; + + if (line6pcm->volume_monitor > 0) + line6_pcm_acquire(line6pcm, LINE6_BITS_PCM_MONITOR); + else + line6_pcm_release(line6pcm, LINE6_BITS_PCM_MONITOR); + + return 1; +} + +/* source info callback */ +static int snd_toneport_source_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + const int size = ARRAY_SIZE(toneport_source_info); + + uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; + uinfo->count = 1; + uinfo->value.enumerated.items = size; + + if (uinfo->value.enumerated.item >= size) + uinfo->value.enumerated.item = size - 1; + + strcpy(uinfo->value.enumerated.name, + toneport_source_info[uinfo->value.enumerated.item].name); + + return 0; +} + +/* source get callback */ +static int snd_toneport_source_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_line6_pcm *line6pcm = snd_kcontrol_chip(kcontrol); + struct usb_line6_toneport *toneport = + (struct usb_line6_toneport *)line6pcm->line6; + ucontrol->value.enumerated.item[0] = toneport->source; + return 0; +} + +/* source put callback */ +static int snd_toneport_source_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_line6_pcm *line6pcm = snd_kcontrol_chip(kcontrol); + struct usb_line6_toneport *toneport = + (struct usb_line6_toneport *)line6pcm->line6; + unsigned int source; + + source = ucontrol->value.enumerated.item[0]; + if (source >= ARRAY_SIZE(toneport_source_info)) + return -EINVAL; + if (source == toneport->source) + return 0; + + toneport->source = source; + toneport_send_cmd(toneport->line6.usbdev, + toneport_source_info[source].code, 0x0000); + return 1; +} + +static void toneport_start_pcm(unsigned long arg) +{ + struct usb_line6_toneport *toneport = (struct usb_line6_toneport *)arg; + struct usb_line6 *line6 = &toneport->line6; + + line6_pcm_acquire(line6->line6pcm, LINE6_BITS_PCM_MONITOR); +} + +/* control definition */ +static struct snd_kcontrol_new toneport_control_monitor = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "Monitor Playback Volume", + .index = 0, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .info = snd_toneport_monitor_info, + .get = snd_toneport_monitor_get, + .put = snd_toneport_monitor_put +}; + +/* source selector definition */ +static struct snd_kcontrol_new toneport_control_source = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "PCM Capture Source", + .index = 0, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .info = snd_toneport_source_info, + .get = snd_toneport_source_get, + .put = snd_toneport_source_put +}; + +/* + Toneport destructor. +*/ +static void toneport_destruct(struct usb_interface *interface) +{ + struct usb_line6_toneport *toneport = usb_get_intfdata(interface); + + if (toneport == NULL) + return; + line6_cleanup_audio(&toneport->line6); +} + +/* + Setup Toneport device. +*/ +static void toneport_setup(struct usb_line6_toneport *toneport) +{ + int ticks; + struct usb_line6 *line6 = &toneport->line6; + struct usb_device *usbdev = line6->usbdev; + + /* sync time on device with host: */ + ticks = (int)get_seconds(); + line6_write_data(line6, 0x80c6, &ticks, 4); + + /* enable device: */ + toneport_send_cmd(usbdev, 0x0301, 0x0000); + + /* initialize source select: */ + switch (line6->type) { + case LINE6_TONEPORT_UX1: + case LINE6_TONEPORT_UX2: + case LINE6_PODSTUDIO_UX1: + case LINE6_PODSTUDIO_UX2: + toneport_send_cmd(usbdev, + toneport_source_info[toneport->source].code, + 0x0000); + default: + break; + } + + if (toneport_has_led(line6->type)) + toneport_update_led(&usbdev->dev); +} + +/* + Toneport device disconnected. +*/ +static void line6_toneport_disconnect(struct usb_interface *interface) +{ + struct usb_line6_toneport *toneport; + u16 idProduct; + + if (interface == NULL) + return; + + toneport = usb_get_intfdata(interface); + del_timer_sync(&toneport->timer); + idProduct = le16_to_cpu(toneport->line6.usbdev->descriptor.idProduct); + + if (toneport_has_led(idProduct)) { + device_remove_file(&interface->dev, &dev_attr_led_red); + device_remove_file(&interface->dev, &dev_attr_led_green); + } + + if (toneport != NULL) { + struct snd_line6_pcm *line6pcm = toneport->line6.line6pcm; + + if (line6pcm != NULL) { + line6_pcm_release(line6pcm, LINE6_BITS_PCM_MONITOR); + line6_pcm_disconnect(line6pcm); + } + } + + toneport_destruct(interface); +} + + +/* + Try to init Toneport device. +*/ +static int toneport_try_init(struct usb_interface *interface, + struct usb_line6 *line6) +{ + int err; + struct usb_line6_toneport *toneport = (struct usb_line6_toneport *) line6; + + if ((interface == NULL) || (toneport == NULL)) + return -ENODEV; + + line6->disconnect = line6_toneport_disconnect; + + /* initialize audio system: */ + err = line6_init_audio(line6); + if (err < 0) + return err; + + /* initialize PCM subsystem: */ + err = line6_init_pcm(line6, &toneport_pcm_properties); + if (err < 0) + return err; + + /* register monitor control: */ + err = snd_ctl_add(line6->card, + snd_ctl_new1(&toneport_control_monitor, + line6->line6pcm)); + if (err < 0) + return err; + + /* register source select control: */ + switch (line6->type) { + case LINE6_TONEPORT_UX1: + case LINE6_TONEPORT_UX2: + case LINE6_PODSTUDIO_UX1: + case LINE6_PODSTUDIO_UX2: + err = + snd_ctl_add(line6->card, + snd_ctl_new1(&toneport_control_source, + line6->line6pcm)); + if (err < 0) + return err; + + default: + break; + } + + /* register audio system: */ + err = line6_register_audio(line6); + if (err < 0) + return err; + + line6_read_serial_number(line6, &toneport->serial_number); + line6_read_data(line6, 0x80c2, &toneport->firmware_version, 1); + + if (toneport_has_led(line6->type)) { + CHECK_RETURN(device_create_file + (&interface->dev, &dev_attr_led_red)); + CHECK_RETURN(device_create_file + (&interface->dev, &dev_attr_led_green)); + } + + toneport_setup(toneport); + + init_timer(&toneport->timer); + toneport->timer.expires = jiffies + TONEPORT_PCM_DELAY * HZ; + toneport->timer.function = toneport_start_pcm; + toneport->timer.data = (unsigned long)toneport; + add_timer(&toneport->timer); + + return 0; +} + +/* + Init Toneport device (and clean up in case of failure). +*/ +int line6_toneport_init(struct usb_interface *interface, + struct usb_line6 *line6) +{ + int err = toneport_try_init(interface, line6); + + if (err < 0) + toneport_destruct(interface); + + return err; +} + +/* + Resume Toneport device after reset. +*/ +void line6_toneport_reset_resume(struct usb_line6_toneport *toneport) +{ + toneport_setup(toneport); +} diff --git a/sound/usb/line6/toneport.h b/sound/usb/line6/toneport.h new file mode 100644 index 000000000000..8cb14426f6ae --- /dev/null +++ b/sound/usb/line6/toneport.h @@ -0,0 +1,51 @@ +/* + * Line6 Linux USB driver - 0.9.1beta + * + * Copyright (C) 2004-2010 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. + * + */ + +#ifndef TONEPORT_H +#define TONEPORT_H + +#include <linux/usb.h> +#include <sound/core.h> + +#include "driver.h" + +struct usb_line6_toneport { + /** + Generic Line6 USB data. + */ + struct usb_line6 line6; + + /** + Source selector. + */ + int source; + + /** + Serial number of device. + */ + int serial_number; + + /** + Firmware version (x 100). + */ + int firmware_version; + + /** + Timer for delayed PCM startup. + */ + struct timer_list timer; +}; + +extern int line6_toneport_init(struct usb_interface *interface, + struct usb_line6 *line6); +extern void line6_toneport_reset_resume(struct usb_line6_toneport *toneport); + +#endif diff --git a/sound/usb/line6/usbdefs.h b/sound/usb/line6/usbdefs.h new file mode 100644 index 000000000000..f4d080e69abc --- /dev/null +++ b/sound/usb/line6/usbdefs.h @@ -0,0 +1,27 @@ +/* + * Line6 Linux USB driver - 0.9.1beta + * + * Copyright (C) 2005-2008 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. + * + */ + +#ifndef USBDEFS_H +#define USBDEFS_H + +#define USB_INTERVALS_PER_SECOND 1000 + +/* device supports settings parameter via USB */ +#define LINE6_CAP_CONTROL (1 << 0) +/* device supports PCM input/output via USB */ +#define LINE6_CAP_PCM (1 << 1) +/* device support hardware monitoring */ +#define LINE6_CAP_HWMON (1 << 2) + +#define LINE6_FALLBACK_INTERVAL 10 +#define LINE6_FALLBACK_MAXPACKETSIZE 16 + +#endif diff --git a/sound/usb/line6/variax.c b/sound/usb/line6/variax.c new file mode 100644 index 000000000000..b4a41b0ad0ea --- /dev/null +++ b/sound/usb/line6/variax.c @@ -0,0 +1,239 @@ +/* + * Line6 Linux USB driver - 0.9.1beta + * + * Copyright (C) 2004-2010 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 <linux/slab.h> + +#include "audio.h" +#include "driver.h" +#include "variax.h" + +#define VARIAX_OFFSET_ACTIVATE 7 + +/* + This message is sent by the device during initialization and identifies + the connected guitar version. +*/ +static const char variax_init_version[] = { + 0xf0, 0x7e, 0x7f, 0x06, 0x02, 0x00, 0x01, 0x0c, + 0x07, 0x00, 0x00, 0x00 +}; + +/* + This message is the last one sent by the device during initialization. +*/ +static const char variax_init_done[] = { + 0xf0, 0x00, 0x01, 0x0c, 0x07, 0x00, 0x6b +}; + +static const char variax_activate[] = { + 0xf0, 0x00, 0x01, 0x0c, 0x07, 0x00, 0x2a, 0x01, + 0xf7 +}; + +/* forward declarations: */ +static void variax_startup2(unsigned long data); +static void variax_startup4(unsigned long data); +static void variax_startup5(unsigned long data); + +static void variax_activate_async(struct usb_line6_variax *variax, int a) +{ + variax->buffer_activate[VARIAX_OFFSET_ACTIVATE] = a; + line6_send_raw_message_async(&variax->line6, variax->buffer_activate, + sizeof(variax_activate)); +} + +/* + Variax startup procedure. + This is a sequence of functions with special requirements (e.g., must + not run immediately after initialization, must not run in interrupt + context). After the last one has finished, the device is ready to use. +*/ + +static void variax_startup1(struct usb_line6_variax *variax) +{ + CHECK_STARTUP_PROGRESS(variax->startup_progress, VARIAX_STARTUP_INIT); + + /* delay startup procedure: */ + line6_start_timer(&variax->startup_timer1, VARIAX_STARTUP_DELAY1, + variax_startup2, (unsigned long)variax); +} + +static void variax_startup2(unsigned long data) +{ + struct usb_line6_variax *variax = (struct usb_line6_variax *)data; + struct usb_line6 *line6 = &variax->line6; + + /* schedule another startup procedure until startup is complete: */ + if (variax->startup_progress >= VARIAX_STARTUP_LAST) + return; + + variax->startup_progress = VARIAX_STARTUP_VERSIONREQ; + line6_start_timer(&variax->startup_timer1, VARIAX_STARTUP_DELAY1, + variax_startup2, (unsigned long)variax); + + /* request firmware version: */ + line6_version_request_async(line6); +} + +static void variax_startup3(struct usb_line6_variax *variax) +{ + CHECK_STARTUP_PROGRESS(variax->startup_progress, VARIAX_STARTUP_WAIT); + + /* delay startup procedure: */ + line6_start_timer(&variax->startup_timer2, VARIAX_STARTUP_DELAY3, + variax_startup4, (unsigned long)variax); +} + +static void variax_startup4(unsigned long data) +{ + struct usb_line6_variax *variax = (struct usb_line6_variax *)data; + + CHECK_STARTUP_PROGRESS(variax->startup_progress, + VARIAX_STARTUP_ACTIVATE); + + /* activate device: */ + variax_activate_async(variax, 1); + line6_start_timer(&variax->startup_timer2, VARIAX_STARTUP_DELAY4, + variax_startup5, (unsigned long)variax); +} + +static void variax_startup5(unsigned long data) +{ + struct usb_line6_variax *variax = (struct usb_line6_variax *)data; + + CHECK_STARTUP_PROGRESS(variax->startup_progress, + VARIAX_STARTUP_WORKQUEUE); + + /* schedule work for global work queue: */ + schedule_work(&variax->startup_work); +} + +static void variax_startup6(struct work_struct *work) +{ + struct usb_line6_variax *variax = + container_of(work, struct usb_line6_variax, startup_work); + + CHECK_STARTUP_PROGRESS(variax->startup_progress, VARIAX_STARTUP_SETUP); + + /* ALSA audio interface: */ + line6_register_audio(&variax->line6); +} + +/* + Process a completely received message. +*/ +static void line6_variax_process_message(struct usb_line6 *line6) +{ + struct usb_line6_variax *variax = (struct usb_line6_variax *) line6; + const unsigned char *buf = variax->line6.buffer_message; + + switch (buf[0]) { + case LINE6_RESET: + dev_info(variax->line6.ifcdev, "VARIAX reset\n"); + break; + + case LINE6_SYSEX_BEGIN: + if (memcmp(buf + 1, variax_init_version + 1, + sizeof(variax_init_version) - 1) == 0) { + variax_startup3(variax); + } else if (memcmp(buf + 1, variax_init_done + 1, + sizeof(variax_init_done) - 1) == 0) { + /* notify of complete initialization: */ + variax_startup4((unsigned long)variax); + } + break; + } +} + +/* + Variax destructor. +*/ +static void variax_destruct(struct usb_interface *interface) +{ + struct usb_line6_variax *variax = usb_get_intfdata(interface); + + if (variax == NULL) + return; + line6_cleanup_audio(&variax->line6); + + del_timer(&variax->startup_timer1); + del_timer(&variax->startup_timer2); + cancel_work_sync(&variax->startup_work); + + kfree(variax->buffer_activate); +} + +/* + Workbench device disconnected. +*/ +static void line6_variax_disconnect(struct usb_interface *interface) +{ + if (interface == NULL) + return; + + variax_destruct(interface); +} + +/* + Try to init workbench device. +*/ +static int variax_try_init(struct usb_interface *interface, + struct usb_line6 *line6) +{ + struct usb_line6_variax *variax = (struct usb_line6_variax *) line6; + int err; + + line6->process_message = line6_variax_process_message; + line6->disconnect = line6_variax_disconnect; + + init_timer(&variax->startup_timer1); + init_timer(&variax->startup_timer2); + INIT_WORK(&variax->startup_work, variax_startup6); + + if ((interface == NULL) || (variax == NULL)) + return -ENODEV; + + /* initialize USB buffers: */ + variax->buffer_activate = kmemdup(variax_activate, + sizeof(variax_activate), GFP_KERNEL); + + if (variax->buffer_activate == NULL) { + dev_err(&interface->dev, "Out of memory\n"); + return -ENOMEM; + } + + /* initialize audio system: */ + err = line6_init_audio(&variax->line6); + if (err < 0) + return err; + + /* initialize MIDI subsystem: */ + err = line6_init_midi(&variax->line6); + if (err < 0) + return err; + + /* initiate startup procedure: */ + variax_startup1(variax); + return 0; +} + +/* + Init workbench device (and clean up in case of failure). +*/ +int line6_variax_init(struct usb_interface *interface, struct usb_line6 *line6) +{ + int err = variax_try_init(interface, line6); + + if (err < 0) + variax_destruct(interface); + + return err; +} diff --git a/sound/usb/line6/variax.h b/sound/usb/line6/variax.h new file mode 100644 index 000000000000..dfb94e574cc4 --- /dev/null +++ b/sound/usb/line6/variax.h @@ -0,0 +1,70 @@ +/* + * Line6 Linux USB driver - 0.9.1beta + * + * Copyright (C) 2004-2010 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. + * + */ + +#ifndef VARIAX_H +#define VARIAX_H + +#include <linux/spinlock.h> +#include <linux/usb.h> +#include <linux/wait.h> +#include <sound/core.h> + +#include "driver.h" + +#define VARIAX_STARTUP_DELAY1 1000 +#define VARIAX_STARTUP_DELAY3 100 +#define VARIAX_STARTUP_DELAY4 100 + +/* + Stages of Variax startup procedure +*/ +enum { + VARIAX_STARTUP_INIT = 1, + VARIAX_STARTUP_VERSIONREQ, + VARIAX_STARTUP_WAIT, + VARIAX_STARTUP_ACTIVATE, + VARIAX_STARTUP_WORKQUEUE, + VARIAX_STARTUP_SETUP, + VARIAX_STARTUP_LAST = VARIAX_STARTUP_SETUP - 1 +}; + +struct usb_line6_variax { + /** + Generic Line6 USB data. + */ + struct usb_line6 line6; + + /** + Buffer for activation code. + */ + unsigned char *buffer_activate; + + /** + Handler for device initializaton. + */ + struct work_struct startup_work; + + /** + Timers for device initializaton. + */ + struct timer_list startup_timer1; + struct timer_list startup_timer2; + + /** + Current progress in startup procedure. + */ + int startup_progress; +}; + +extern int line6_variax_init(struct usb_interface *interface, + struct usb_line6 *line6); + +#endif |