source "drivers/staging/rts5208/Kconfig"
-source "drivers/staging/line6/Kconfig"
-
source "drivers/staging/octeon/Kconfig"
source "drivers/staging/octeon-usb/Kconfig"
obj-$(CONFIG_R8188EU) += rtl8188eu/
obj-$(CONFIG_R8723AU) += rtl8723au/
obj-$(CONFIG_RTS5208) += rts5208/
-obj-$(CONFIG_LINE6_USB) += line6/
obj-$(CONFIG_NETLOGIC_XLR_NET) += netlogic/
obj-$(CONFIG_OCTEON_ETHERNET) += octeon/
obj-$(CONFIG_OCTEON_USB) += octeon-usb/
+++ /dev/null
-menuconfig LINE6_USB
- tristate "Line6 USB support"
- depends on USB && SND
- select SND_RAWMIDI
- select SND_PCM
- help
- This is a driver for the guitar amp, cab, and effects modeller
- PODxt Pro by Line6 (and similar devices), supporting the
- following features:
- * Reading/writing individual parameters
- * Reading/writing complete channel, effects setup, and amp
- setup data
- * Channel switching
- * Virtual MIDI interface
- * Tuner access
- * Playback/capture/mixer device for any ALSA-compatible PCM
- audio application
- * Signal routing (record clean/processed guitar signal,
- re-amping)
-
- Preliminary support for the Variax Workbench and TonePort
- devices is included.
-
-if LINE6_USB
-
-config LINE6_USB_IMPULSE_RESPONSE
- bool "measure impulse response"
- default n
- help
- Say Y here to add code to measure the impulse response of a Line6
- device. This is more accurate than user-space methods since it
- bypasses any PCM data buffering (e.g., by ALSA or jack). This is
- useful for assessing the performance of new devices, but is not
- required for normal operation.
-
- If unsure, say N.
-
-endif # LINE6_USB
+++ /dev/null
-obj-$(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
+++ /dev/null
-/*
- * 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;
-}
+++ /dev/null
-/*
- * 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
+++ /dev/null
-/*
- * 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;
-}
+++ /dev/null
-/*
- * 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
+++ /dev/null
-/*
- * 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);
+++ /dev/null
-/*
- * 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
+++ /dev/null
-/*
- * 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;
-}
+++ /dev/null
-/*
- * 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
+++ /dev/null
-/*
- * 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;
-}
+++ /dev/null
-/*
- * 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
+++ /dev/null
-/*
- * 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;
-}
+++ /dev/null
-/*
- * 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
+++ /dev/null
-/*
- * 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;
-}
+++ /dev/null
-/*
- * 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
+++ /dev/null
-/*
- * 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;
-}
+++ /dev/null
-/*
- * 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
+++ /dev/null
-/*
- * 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;
-}
+++ /dev/null
-/*
- * 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 */
+++ /dev/null
-#ifndef DRIVER_REVISION
-/* current subversion revision */
-#define DRIVER_REVISION " (904)"
-#endif
+++ /dev/null
-/*
- * 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);
-}
+++ /dev/null
-/*
- * 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
+++ /dev/null
-/*
- * 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
+++ /dev/null
-/*
- * 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;
-}
+++ /dev/null
-/*
- * 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
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
obj-$(CONFIG_SND_USB_US122L) += snd-usbmidi-lib.o
obj-$(CONFIG_SND) += misc/ usx2y/ caiaq/ 6fire/ hiface/ bcd2000/
+obj-$(CONFIG_LINE6_USB) += line6/
--- /dev/null
+menuconfig LINE6_USB
+ tristate "Line6 USB support"
+ depends on USB && SND
+ select SND_RAWMIDI
+ select SND_PCM
+ help
+ This is a driver for the guitar amp, cab, and effects modeller
+ PODxt Pro by Line6 (and similar devices), supporting the
+ following features:
+ * Reading/writing individual parameters
+ * Reading/writing complete channel, effects setup, and amp
+ setup data
+ * Channel switching
+ * Virtual MIDI interface
+ * Tuner access
+ * Playback/capture/mixer device for any ALSA-compatible PCM
+ audio application
+ * Signal routing (record clean/processed guitar signal,
+ re-amping)
+
+ Preliminary support for the Variax Workbench and TonePort
+ devices is included.
+
+if LINE6_USB
+
+config LINE6_USB_IMPULSE_RESPONSE
+ bool "measure impulse response"
+ default n
+ help
+ Say Y here to add code to measure the impulse response of a Line6
+ device. This is more accurate than user-space methods since it
+ bypasses any PCM data buffering (e.g., by ALSA or jack). This is
+ useful for assessing the performance of new devices, but is not
+ required for normal operation.
+
+ If unsure, say N.
+
+endif # LINE6_USB
--- /dev/null
+obj-$(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
--- /dev/null
+/*
+ * 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;
+}
--- /dev/null
+/*
+ * 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
--- /dev/null
+/*
+ * 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;
+}
--- /dev/null
+/*
+ * 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
--- /dev/null
+/*
+ * 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);
--- /dev/null
+/*
+ * 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
--- /dev/null
+/*
+ * 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;
+}
--- /dev/null
+/*
+ * 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
--- /dev/null
+/*
+ * 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;
+}
--- /dev/null
+/*
+ * 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
--- /dev/null
+/*
+ * 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;
+}
--- /dev/null
+/*
+ * 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
--- /dev/null
+/*
+ * 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;
+}
--- /dev/null
+/*
+ * 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
--- /dev/null
+/*
+ * 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;
+}
--- /dev/null
+/*
+ * 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
--- /dev/null
+/*
+ * 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;
+}
--- /dev/null
+/*
+ * 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 */
--- /dev/null
+#ifndef DRIVER_REVISION
+/* current subversion revision */
+#define DRIVER_REVISION " (904)"
+#endif
--- /dev/null
+/*
+ * 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);
+}
--- /dev/null
+/*
+ * 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
--- /dev/null
+/*
+ * 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
--- /dev/null
+/*
+ * 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;
+}
--- /dev/null
+/*
+ * 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
projects / firefly-linux-kernel-4.4.55.git / commitdiff