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[ALSA] Add Native Instrument usb audio device support

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Add snd-usb-caiaq driver to support caiaq usb-audio devices from
Native Instrument:
	* Native Instruments RigKontrol2
	* Native Instruments Kore Controller
	* Native Instruments Audio Kontrol 1
	* Native Instruments Audio 8 DJ

Signed-off-by: Daniel Mack <daniel@caiaq.org>
Signed-off-by: Karsten Wiese <fzu@wemgehoertderstaat.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
This commit is contained in:
Daniel Mack 2007-03-26 19:11:24 +02:00 committed by Jaroslav Kysela
parent e24a121aa1
commit 523f1dce37
12 changed files with 1747 additions and 1 deletions
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11
Documentation/sound/alsa/ALSA-Configuration.txt
View File

@ -1697,6 +1697,17 @@ Prior to version 0.9.0rc4 options had a 'snd_' prefix. This was removed.
This module supports multiple devices, autoprobe and hotplugging.
Module snd-usb-caiaq
--------------------
Module for caiaq UB audio interfaces,
* Native Instruments RigKontrol2
* Native Instruments Kore Controller
* Native Instruments Audio Kontrol 1
* Native Instruments Audio 8 DJ
This module supports multiple devices, autoprobe and hotplugging.
Module snd-usb-usx2y
--------------------

28
sound/usb/Kconfig
View File

@ -29,5 +29,33 @@ config SND_USB_USX2Y
To compile this driver as a module, choose M here: the module
will be called snd-usb-usx2y.
config SND_USB_CAIAQ
tristate "Native Instruments USB audio devices"
depends on SND && USB
select SND_HWDEP
select SND_RAWMIDI
select SND_PCM
help
Say Y here to include support for caiaq USB audio interfaces,
namely:
* Native Instruments RigKontrol2
* Native Instruments Kore Controller
* Native Instruments Audio Kontrol 1
* Native Instruments Audio 8 DJ
To compile this driver as a module, choose M here: the module
will be called snd-usb-caiaq.
config SND_USB_CAIAQ_INPUT
bool "enable input device for controllers"
depends on SND_USB_CAIAQ
help
Say Y here to support input controllers like buttons, knobs,
alpha dials and analog pedals on the following products:
* Native Instruments RigKontrol2
* Native Instruments Audio Kontrol 1
endmenu

2
sound/usb/Makefile
View File

@ -9,4 +9,4 @@ snd-usb-lib-objs := usbmidi.o
obj-$(CONFIG_SND_USB_AUDIO) += snd-usb-audio.o snd-usb-lib.o
obj-$(CONFIG_SND_USB_USX2Y) += snd-usb-lib.o
obj-$(CONFIG_SND) += usx2y/
obj-$(CONFIG_SND) += usx2y/ caiaq/

3
sound/usb/caiaq/Makefile Normal file
View File

@ -0,0 +1,3 @@
snd-usb-caiaq-objs := caiaq-device.o caiaq-audio.o caiaq-midi.o caiaq-input.o
obj-$(CONFIG_SND_USB_CAIAQ) += snd-usb-caiaq.o

706
sound/usb/caiaq/caiaq-audio.c Normal file
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@ -0,0 +1,706 @@
/*
* Copyright (c) 2006,2007 Daniel Mack, Karsten Wiese
*
* 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; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <sound/driver.h>
#include <linux/init.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/interrupt.h>
#include <linux/usb.h>
#include <linux/spinlock.h>
#include <sound/core.h>
#include <sound/initval.h>
#include <sound/pcm.h>
#include <sound/rawmidi.h>
#ifdef CONFIG_SND_USB_CAIAQ_INPUT
#include <linux/input.h>
#endif
#include "caiaq-device.h"
#include "caiaq-audio.h"
#define N_URBS 32
#define CLOCK_DRIFT_TOLERANCE 5
#define FRAMES_PER_URB 8
#define BYTES_PER_FRAME 512
#define CHANNELS_PER_STREAM 2
#define BYTES_PER_SAMPLE 3
#define BYTES_PER_SAMPLE_USB 4
#define MAX_BUFFER_SIZE (128*1024)
#define ENDPOINT_CAPTURE 2
#define ENDPOINT_PLAYBACK 6
#define MAKE_CHECKBYTE(dev,stream,i) \
(stream << 1) | (~(i / (dev->n_streams * BYTES_PER_SAMPLE_USB)) & 1)
static struct snd_pcm_hardware snd_usb_caiaq_pcm_hardware = {
.info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
SNDRV_PCM_INFO_BLOCK_TRANSFER),
.formats = SNDRV_PCM_FMTBIT_S24_3BE,
.rates = (SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |
SNDRV_PCM_RATE_96000),
.rate_min = 44100,
.rate_max = 0, /* will overwrite later */
.channels_min = CHANNELS_PER_STREAM,
.channels_max = CHANNELS_PER_STREAM,
.buffer_bytes_max = MAX_BUFFER_SIZE,
.period_bytes_min = 4096,
.period_bytes_max = MAX_BUFFER_SIZE,
.periods_min = 1,
.periods_max = 1024,
};
static void
activate_substream(struct snd_usb_caiaqdev *dev,
struct snd_pcm_substream *sub)
{
if (sub->stream == SNDRV_PCM_STREAM_PLAYBACK)
dev->sub_playback[sub->number] = sub;
else
dev->sub_capture[sub->number] = sub;
}
static void
deactivate_substream(struct snd_usb_caiaqdev *dev,
struct snd_pcm_substream *sub)
{
if (sub->stream == SNDRV_PCM_STREAM_PLAYBACK)
dev->sub_playback[sub->number] = NULL;
else
dev->sub_capture[sub->number] = NULL;
}
static int
all_substreams_zero(struct snd_pcm_substream **subs)
{
int i;
for (i = 0; i < MAX_STREAMS; i++)
if (subs[i] != NULL)
return 0;
return 1;
}
static int stream_start(struct snd_usb_caiaqdev *dev)
{
int i, ret;
debug("stream_start(%p)\n", dev);
spin_lock_irq(&dev->spinlock);
if (dev->streaming) {
spin_unlock_irq(&dev->spinlock);
return -EINVAL;
}
dev->input_panic = 0;
dev->output_panic = 0;
dev->first_packet = 1;
dev->streaming = 1;
for (i = 0; i < N_URBS; i++) {
ret = usb_submit_urb(dev->data_urbs_in[i], GFP_ATOMIC);
if (ret) {
log("unable to trigger initial read #%d! (ret = %d)\n",
i, ret);
dev->streaming = 0;
spin_unlock_irq(&dev->spinlock);
return -EPIPE;
}
}
spin_unlock_irq(&dev->spinlock);
return 0;
}
static void stream_stop(struct snd_usb_caiaqdev *dev)
{
int i;
debug("stream_stop(%p)\n", dev);
if (!dev->streaming)
return;
dev->streaming = 0;
for (i = 0; i < N_URBS; i++) {
usb_unlink_urb(dev->data_urbs_in[i]);
usb_unlink_urb(dev->data_urbs_out[i]);
}
}
static int snd_usb_caiaq_substream_open(struct snd_pcm_substream *substream)
{
struct snd_usb_caiaqdev *dev = snd_pcm_substream_chip(substream);
debug("snd_usb_caiaq_substream_open(%p)\n", substream);
substream->runtime->hw = dev->pcm_info;
snd_pcm_limit_hw_rates(substream->runtime);
return 0;
}
static int snd_usb_caiaq_substream_close(struct snd_pcm_substream *substream)
{
struct snd_usb_caiaqdev *dev = snd_pcm_substream_chip(substream);
debug("snd_usb_caiaq_substream_close(%p)\n", substream);
if (all_substreams_zero(dev->sub_playback) &&
all_substreams_zero(dev->sub_capture)) {
/* when the last client has stopped streaming,
* all sample rates are allowed again */
stream_stop(dev);
dev->pcm_info.rates = dev->samplerates;
}
return 0;
}
static int snd_usb_caiaq_pcm_hw_params(struct snd_pcm_substream *sub,
struct snd_pcm_hw_params *hw_params)
{
debug("snd_usb_caiaq_pcm_hw_params(%p)\n", sub);
return snd_pcm_lib_malloc_pages(sub, params_buffer_bytes(hw_params));
}
static int snd_usb_caiaq_pcm_hw_free(struct snd_pcm_substream *sub)
{
struct snd_usb_caiaqdev *dev = snd_pcm_substream_chip(sub);
debug("snd_usb_caiaq_pcm_hw_free(%p)\n", sub);
spin_lock_irq(&dev->spinlock);
deactivate_substream(dev, sub);
spin_unlock_irq(&dev->spinlock);
return snd_pcm_lib_free_pages(sub);
}
/* this should probably go upstream */
#if SNDRV_PCM_RATE_5512 != 1 << 0 || SNDRV_PCM_RATE_192000 != 1 << 12
#error "Change this table"
#endif
static unsigned int rates[] = { 5512, 8000, 11025, 16000, 22050, 32000, 44100,
48000, 64000, 88200, 96000, 176400, 192000 };
static int snd_usb_caiaq_pcm_prepare(struct snd_pcm_substream *substream)
{
int bytes_per_sample, bpp, ret, i;
int index = substream->number;
struct snd_usb_caiaqdev *dev = snd_pcm_substream_chip(substream);
struct snd_pcm_runtime *runtime = substream->runtime;
debug("snd_usb_caiaq_pcm_prepare(%p)\n", substream);
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
dev->audio_out_buf_pos[index] = BYTES_PER_SAMPLE + 1;
else
dev->audio_in_buf_pos[index] = 0;
if (dev->streaming)
return 0;
/* the first client that opens a stream defines the sample rate
* setting for all subsequent calls, until the last client closed. */
for (i=0; i < ARRAY_SIZE(rates); i++)
if (runtime->rate == rates[i])
dev->pcm_info.rates = 1 << i;
snd_pcm_limit_hw_rates(runtime);
bytes_per_sample = BYTES_PER_SAMPLE;
if (dev->spec.data_alignment == 2)
bytes_per_sample++;
bpp = ((runtime->rate / 8000) + CLOCK_DRIFT_TOLERANCE)
* bytes_per_sample * CHANNELS_PER_STREAM * dev->n_streams;
ret = snd_usb_caiaq_set_audio_params(dev, runtime->rate,
runtime->sample_bits, bpp);
if (ret)
return ret;
ret = stream_start(dev);
if (ret)
return ret;
dev->output_running = 0;
wait_event_timeout(dev->prepare_wait_queue, dev->output_running, HZ);
if (!dev->output_running) {
stream_stop(dev);
return -EPIPE;
}
return 0;
}
static int snd_usb_caiaq_pcm_trigger(struct snd_pcm_substream *sub, int cmd)
{
struct snd_usb_caiaqdev *dev = snd_pcm_substream_chip(sub);
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
spin_lock(&dev->spinlock);
activate_substream(dev, sub);
spin_unlock(&dev->spinlock);
break;
case SNDRV_PCM_TRIGGER_STOP:
case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
spin_lock(&dev->spinlock);
deactivate_substream(dev, sub);
spin_unlock(&dev->spinlock);
break;
default:
return -EINVAL;
}
return 0;
}
static snd_pcm_uframes_t
snd_usb_caiaq_pcm_pointer(struct snd_pcm_substream *sub)
{
int index = sub->number;
struct snd_usb_caiaqdev *dev = snd_pcm_substream_chip(sub);
if (dev->input_panic || dev->output_panic)
return SNDRV_PCM_POS_XRUN;
if (sub->stream == SNDRV_PCM_STREAM_PLAYBACK)
return bytes_to_frames(sub->runtime,
dev->audio_out_buf_pos[index]);
else
return bytes_to_frames(sub->runtime,
dev->audio_in_buf_pos[index]);
}
/* operators for both playback and capture */
static struct snd_pcm_ops snd_usb_caiaq_ops = {
.open = snd_usb_caiaq_substream_open,
.close = snd_usb_caiaq_substream_close,
.ioctl = snd_pcm_lib_ioctl,
.hw_params = snd_usb_caiaq_pcm_hw_params,
.hw_free = snd_usb_caiaq_pcm_hw_free,
.prepare = snd_usb_caiaq_pcm_prepare,
.trigger = snd_usb_caiaq_pcm_trigger,
.pointer = snd_usb_caiaq_pcm_pointer
};
static void check_for_elapsed_periods(struct snd_usb_caiaqdev *dev,
struct snd_pcm_substream **subs)
{
int stream, pb, *cnt;
struct snd_pcm_substream *sub;
for (stream = 0; stream < dev->n_streams; stream++) {
sub = subs[stream];
if (!sub)
continue;
pb = frames_to_bytes(sub->runtime,
sub->runtime->period_size);
cnt = (sub->stream == SNDRV_PCM_STREAM_PLAYBACK) ?
&dev->period_out_count[stream] :
&dev->period_in_count[stream];
if (*cnt >= pb) {
snd_pcm_period_elapsed(sub);
*cnt %= pb;
}
}
}
static void read_in_urb_mode0(struct snd_usb_caiaqdev *dev,
const struct urb *urb,
const struct usb_iso_packet_descriptor *iso)
{
unsigned char *usb_buf = urb->transfer_buffer + iso->offset;
struct snd_pcm_substream *sub;
int stream, i;
if (all_substreams_zero(dev->sub_capture))
return;
spin_lock(&dev->spinlock);
for (i = 0; i < iso->actual_length;) {
for (stream = 0; stream < dev->n_streams; stream++, i++) {
sub = dev->sub_capture[stream];
if (sub) {
struct snd_pcm_runtime *rt = sub->runtime;
char *audio_buf = rt->dma_area;
int sz = frames_to_bytes(rt, rt->buffer_size);
audio_buf[dev->audio_in_buf_pos[stream]++]
= usb_buf[i];
dev->period_in_count[stream]++;
if (dev->audio_in_buf_pos[stream] == sz)
dev->audio_in_buf_pos[stream] = 0;
}
}
}
spin_unlock(&dev->spinlock);
}
static void read_in_urb_mode2(struct snd_usb_caiaqdev *dev,
const struct urb *urb,
const struct usb_iso_packet_descriptor *iso)
{
unsigned char *usb_buf = urb->transfer_buffer + iso->offset;
unsigned char check_byte;
struct snd_pcm_substream *sub;
int stream, i;
spin_lock(&dev->spinlock);
for (i = 0; i < iso->actual_length;) {
if (i % (dev->n_streams * BYTES_PER_SAMPLE_USB) == 0) {
for (stream = 0;
stream < dev->n_streams;
stream++, i++) {
if (dev->first_packet)
continue;
check_byte = MAKE_CHECKBYTE(dev, stream, i);
if ((usb_buf[i] & 0x3f) != check_byte)
dev->input_panic = 1;
if (usb_buf[i] & 0x80)
dev->output_panic = 1;
}
}
dev->first_packet = 0;
for (stream = 0; stream < dev->n_streams; stream++, i++) {
sub = dev->sub_capture[stream];
if (sub) {
struct snd_pcm_runtime *rt = sub->runtime;
char *audio_buf = rt->dma_area;
int sz = frames_to_bytes(rt, rt->buffer_size);
audio_buf[dev->audio_in_buf_pos[stream]++]
= usb_buf[i];
dev->period_in_count[stream]++;
if (dev->audio_in_buf_pos[stream] == sz)
dev->audio_in_buf_pos[stream] = 0;
}
}
}
spin_unlock(&dev->spinlock);
}
static void read_in_urb(struct snd_usb_caiaqdev *dev,
const struct urb *urb,
const struct usb_iso_packet_descriptor *iso)
{
if (!dev->streaming)
return;
switch (dev->spec.data_alignment) {
case 0:
read_in_urb_mode0(dev, urb, iso);
break;
case 2:
read_in_urb_mode2(dev, urb, iso);
break;
}
if (dev->input_panic || dev->output_panic) {
debug("streaming error detected %s %s\n",
dev->input_panic ? "(input)" : "",
dev->output_panic ? "(output)" : "");
}
check_for_elapsed_periods(dev, dev->sub_capture);
}
static void fill_out_urb(struct snd_usb_caiaqdev *dev,
struct urb *urb,
const struct usb_iso_packet_descriptor *iso)
{
unsigned char *usb_buf = urb->transfer_buffer + iso->offset;
struct snd_pcm_substream *sub;
int stream, i;
spin_lock(&dev->spinlock);
for (i = 0; i < iso->length;) {
for (stream = 0; stream < dev->n_streams; stream++) {
sub = dev->sub_playback[stream];
if (sub) {
struct snd_pcm_runtime *rt = sub->runtime;
char *audio_buf = rt->dma_area;
int sz = frames_to_bytes(rt, rt->buffer_size);
usb_buf[i++]
= audio_buf[dev->audio_out_buf_pos[stream]++];
dev->audio_out_buf_pos[stream]++;
if (dev->audio_out_buf_pos[stream] == sz)
dev->audio_out_buf_pos[stream] = 0;
} else
usb_buf[i++] = 0;
/* fill in the check bytes */
if (dev->spec.data_alignment == 2 &&
i % (dev->n_streams * BYTES_PER_SAMPLE_USB) ==
(dev->n_streams * CHANNELS_PER_STREAM))
for (stream = 0; stream < dev->n_streams; stream++, i++)
usb_buf[i] = MAKE_CHECKBYTE(dev, stream, i);
}
}
spin_unlock(&dev->spinlock);
check_for_elapsed_periods(dev, dev->sub_playback);
}
static void read_completed(struct urb *urb)
{
struct snd_usb_caiaq_cb_info *info = urb->context;
struct snd_usb_caiaqdev *dev;
struct urb *out;
int frame, len, send_it = 0, outframe = 0;
if (urb->status || !info)
return;
dev = info->dev;
if (!dev->streaming)
return;
out = dev->data_urbs_out[info->index];
/* read the recently received packet and send back one which has
* the same layout */
for (frame = 0; frame < FRAMES_PER_URB; frame++) {
if (urb->iso_frame_desc[frame].status)
continue;
len = urb->iso_frame_desc[outframe].actual_length;
out->iso_frame_desc[outframe].length = len;
out->iso_frame_desc[outframe].actual_length = 0;
out->iso_frame_desc[outframe].offset = BYTES_PER_FRAME * frame;
if (len > 0) {
fill_out_urb(dev, out, &out->iso_frame_desc[outframe]);
read_in_urb(dev, urb, &urb->iso_frame_desc[frame]);
send_it = 1;
}
outframe++;
}
if (send_it) {
out->number_of_packets = FRAMES_PER_URB;
out->transfer_flags = URB_ISO_ASAP;
usb_submit_urb(out, GFP_ATOMIC);
}
/* re-submit inbound urb */
for (frame = 0; frame < FRAMES_PER_URB; frame++) {
urb->iso_frame_desc[frame].offset = BYTES_PER_FRAME * frame;
urb->iso_frame_desc[frame].length = BYTES_PER_FRAME;
urb->iso_frame_desc[frame].actual_length = 0;
}
urb->number_of_packets = FRAMES_PER_URB;
urb->transfer_flags = URB_ISO_ASAP;
usb_submit_urb(urb, GFP_ATOMIC);
}
static void write_completed(struct urb *urb)
{
struct snd_usb_caiaq_cb_info *info = urb->context;
struct snd_usb_caiaqdev *dev = info->dev;
if (!dev->output_running) {
dev->output_running = 1;
wake_up(&dev->prepare_wait_queue);
}
}
static struct urb **alloc_urbs(struct snd_usb_caiaqdev *dev, int dir, int *ret)
{
int i, frame;
struct urb **urbs;
struct usb_device *usb_dev = dev->chip.dev;
unsigned int pipe;
pipe = (dir == SNDRV_PCM_STREAM_PLAYBACK) ?
usb_sndisocpipe(usb_dev, ENDPOINT_PLAYBACK) :
usb_rcvisocpipe(usb_dev, ENDPOINT_CAPTURE);
urbs = kmalloc(N_URBS * sizeof(*urbs), GFP_KERNEL);
if (!urbs) {
log("unable to kmalloc() urbs, OOM!?\n");
*ret = -ENOMEM;
return NULL;
}
for (i = 0; i < N_URBS; i++) {
urbs[i] = usb_alloc_urb(FRAMES_PER_URB, GFP_KERNEL);
if (!urbs[i]) {
log("unable to usb_alloc_urb(), OOM!?\n");
*ret = -ENOMEM;
return urbs;
}
urbs[i]->transfer_buffer =
kmalloc(FRAMES_PER_URB * BYTES_PER_FRAME, GFP_KERNEL);
if (!urbs[i]->transfer_buffer) {
log("unable to kmalloc() transfer buffer, OOM!?\n");
*ret = -ENOMEM;
return urbs;
}
for (frame = 0; frame < FRAMES_PER_URB; frame++) {
struct usb_iso_packet_descriptor *iso =
&urbs[i]->iso_frame_desc[frame];
iso->offset = BYTES_PER_FRAME * frame;
iso->length = BYTES_PER_FRAME;
}
urbs[i]->dev = usb_dev;
urbs[i]->pipe = pipe;
urbs[i]->transfer_buffer_length = FRAMES_PER_URB
* BYTES_PER_FRAME;
urbs[i]->context = &dev->data_cb_info[i];
urbs[i]->interval = 1;
urbs[i]->transfer_flags = URB_ISO_ASAP;
urbs[i]->number_of_packets = FRAMES_PER_URB;
urbs[i]->complete = (dir == SNDRV_PCM_STREAM_CAPTURE) ?
read_completed : write_completed;
}
*ret = 0;
return urbs;
}
static void free_urbs(struct urb **urbs)
{
int i;
if (!urbs)
return;
for (i = 0; i < N_URBS; i++) {
if (!urbs[i])
continue;
usb_kill_urb(urbs[i]);
kfree(urbs[i]->transfer_buffer);
usb_free_urb(urbs[i]);
}
kfree(urbs);
}
int __devinit snd_usb_caiaq_audio_init(struct snd_usb_caiaqdev *dev)
{
int i, ret;
dev->n_audio_in = max(dev->spec.num_analog_audio_in,
dev->spec.num_digital_audio_in) /
CHANNELS_PER_STREAM;
dev->n_audio_out = max(dev->spec.num_analog_audio_out,
dev->spec.num_digital_audio_out) /
CHANNELS_PER_STREAM;
dev->n_streams = max(dev->n_audio_in, dev->n_audio_out);
debug("dev->n_audio_in = %d\n", dev->n_audio_in);
debug("dev->n_audio_out = %d\n", dev->n_audio_out);
debug("dev->n_streams = %d\n", dev->n_streams);
if (dev->n_streams > MAX_STREAMS) {
log("unable to initialize device, too many streams.\n");
return -EINVAL;
}
ret = snd_pcm_new(dev->chip.card, dev->product_name, 0,
dev->n_audio_out, dev->n_audio_in, &dev->pcm);
if (ret < 0) {
log("snd_pcm_new() returned %d\n", ret);
return ret;
}
dev->pcm->private_data = dev;
strcpy(dev->pcm->name, dev->product_name);
memset(dev->sub_playback, 0, sizeof(dev->sub_playback));
memset(dev->sub_capture, 0, sizeof(dev->sub_capture));
memcpy(&dev->pcm_info, &snd_usb_caiaq_pcm_hardware,
sizeof(snd_usb_caiaq_pcm_hardware));
/* setup samplerates */
dev->samplerates = dev->pcm_info.rates;
switch (dev->chip.usb_id) {
case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_AK1):
dev->samplerates |= SNDRV_PCM_RATE_88200;
dev->samplerates |= SNDRV_PCM_RATE_192000;
break;
case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_AUDIO8DJ):
dev->samplerates |= SNDRV_PCM_RATE_88200;
break;
}
snd_pcm_set_ops(dev->pcm, SNDRV_PCM_STREAM_PLAYBACK,
&snd_usb_caiaq_ops);
snd_pcm_set_ops(dev->pcm, SNDRV_PCM_STREAM_CAPTURE,
&snd_usb_caiaq_ops);
snd_pcm_lib_preallocate_pages_for_all(dev->pcm,
SNDRV_DMA_TYPE_CONTINUOUS,
snd_dma_continuous_data(GFP_KERNEL),
MAX_BUFFER_SIZE, MAX_BUFFER_SIZE);
dev->data_cb_info =
kmalloc(sizeof(struct snd_usb_caiaq_cb_info) * N_URBS,
GFP_KERNEL);
if (!dev->data_cb_info)
return -ENOMEM;
for (i = 0; i < N_URBS; i++) {
dev->data_cb_info[i].dev = dev;
dev->data_cb_info[i].index = i;
}
dev->data_urbs_in = alloc_urbs(dev, SNDRV_PCM_STREAM_CAPTURE, &ret);
if (ret < 0) {
kfree(dev->data_cb_info);
free_urbs(dev->data_urbs_in);
return ret;
}
dev->data_urbs_out = alloc_urbs(dev, SNDRV_PCM_STREAM_PLAYBACK, &ret);
if (ret < 0) {
kfree(dev->data_cb_info);
free_urbs(dev->data_urbs_in);
free_urbs(dev->data_urbs_out);
return ret;
}
return 0;
}
void snd_usb_caiaq_audio_free(struct snd_usb_caiaqdev *dev)
{
debug("snd_usb_caiaq_audio_free (%p)\n", dev);
stream_stop(dev);
free_urbs(dev->data_urbs_in);
free_urbs(dev->data_urbs_out);
kfree(dev->data_cb_info);
}

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sound/usb/caiaq/caiaq-audio.h Normal file
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#ifndef CAIAQ_AUDIO_H
#define CAIAQ_AUDIO_H
int snd_usb_caiaq_audio_init(struct snd_usb_caiaqdev *dev);
void snd_usb_caiaq_audio_free(struct snd_usb_caiaqdev *dev);
#endif /* CAIAQ_AUDIO_H */

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sound/usb/caiaq/caiaq-device.c Normal file
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/*
* caiaq.c: ALSA driver for caiaq/NativeInstruments devices
*
* Copyright (c) 2007 Daniel Mack <daniel@caiaq.de>
* Karsten Wiese <fzu@wemgehoertderstaat.de>
*
* 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; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <linux/init.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/interrupt.h>
#include <linux/usb.h>
#include <linux/input.h>
#include <linux/spinlock.h>
#include <sound/driver.h>
#include <sound/core.h>
#include <sound/initval.h>
#include <sound/pcm.h>
#include <sound/rawmidi.h>
#include "caiaq-device.h"
#include "caiaq-audio.h"
#include "caiaq-midi.h"
#ifdef CONFIG_SND_USB_CAIAQ_INPUT
#include "caiaq-input.h"
#endif
MODULE_AUTHOR("Daniel Mack <daniel@caiaq.de>");
MODULE_DESCRIPTION("caiaq USB audio, version 1.1.0");
MODULE_LICENSE("GPL");
MODULE_SUPPORTED_DEVICE("{{Native Instruments, RigKontrol2},"
"{Native Instruments, Kore Controller},"
"{Native Instruments, Audio Kontrol 1}"
"{Native Instruments, Audio 8 DJ}}");
static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-max */
static char* id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* Id for this card */
static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable this card */
static int snd_card_used[SNDRV_CARDS];
module_param_array(index, int, NULL, 0444);
MODULE_PARM_DESC(index, "Index value for the caiaq sound device");
module_param_array(id, charp, NULL, 0444);
MODULE_PARM_DESC(id, "ID string for the caiaq soundcard.");
module_param_array(enable, bool, NULL, 0444);
MODULE_PARM_DESC(enable, "Enable the caiaq soundcard.");
enum {
SAMPLERATE_44100 = 0,
SAMPLERATE_48000 = 1,
SAMPLERATE_96000 = 2,
SAMPLERATE_192000 = 3,
SAMPLERATE_88200 = 4,
SAMPLERATE_INVALID = 0xff
};
enum {
DEPTH_NONE = 0,
DEPTH_16 = 1,
DEPTH_24 = 2,
DEPTH_32 = 3
};
static struct usb_device_id snd_usb_id_table[] = {
{
.match_flags = USB_DEVICE_ID_MATCH_DEVICE,
.idVendor = USB_VID_NATIVEINSTRUMENTS,
.idProduct = USB_PID_RIGKONTROL2
},
{
.match_flags = USB_DEVICE_ID_MATCH_DEVICE,
.idVendor = USB_VID_NATIVEINSTRUMENTS,
.idProduct = USB_PID_KORECONTROLLER
},
{
.match_flags = USB_DEVICE_ID_MATCH_DEVICE,
.idVendor = USB_VID_NATIVEINSTRUMENTS,
.idProduct = USB_PID_AK1
},
{
.match_flags = USB_DEVICE_ID_MATCH_DEVICE,
.idVendor = USB_VID_NATIVEINSTRUMENTS,
.idProduct = USB_PID_AUDIO8DJ
},
{ /* terminator */ }
};
static void usb_ep1_command_reply_dispatch (struct urb* urb)
{
int ret;
struct snd_usb_caiaqdev *dev = urb->context;
unsigned char *buf = urb->transfer_buffer;
if (urb->status || !dev) {
log("received EP1 urb->status = %i\n", urb->status);
return;
}
switch(buf[0]) {
case EP1_CMD_GET_DEVICE_INFO:
memcpy(&dev->spec, buf+1, sizeof(struct caiaq_device_spec));
dev->spec.fw_version = le16_to_cpu(dev->spec.fw_version);
debug("device spec (firmware %d): audio: %d in, %d out, "
"MIDI: %d in, %d out, data alignment %d\n",
dev->spec.fw_version,
dev->spec.num_analog_audio_in,
dev->spec.num_analog_audio_out,
dev->spec.num_midi_in,
dev->spec.num_midi_out,
dev->spec.data_alignment);
dev->spec_received++;
wake_up(&dev->ep1_wait_queue);
break;
case EP1_CMD_AUDIO_PARAMS:
dev->audio_parm_answer = buf[1];
wake_up(&dev->ep1_wait_queue);
break;
case EP1_CMD_MIDI_READ:
snd_usb_caiaq_midi_handle_input(dev, buf[1], buf + 3, buf[2]);
break;
#ifdef CONFIG_SND_USB_CAIAQ_INPUT
case EP1_CMD_READ_ERP:
case EP1_CMD_READ_ANALOG:
case EP1_CMD_READ_IO:
snd_usb_caiaq_input_dispatch(dev, buf, urb->actual_length);
break;
#endif
}
dev->ep1_in_urb.actual_length = 0;
ret = usb_submit_urb(&dev->ep1_in_urb, GFP_ATOMIC);
if (ret < 0)
log("unable to submit urb. OOM!?\n");
}
static int send_command (struct snd_usb_caiaqdev *dev,
unsigned char command,
const unsigned char *buffer,
int len)
{
int actual_len;
struct usb_device *usb_dev = dev->chip.dev;
if (!usb_dev)
return -EIO;
if (len > EP1_BUFSIZE - 1)
len = EP1_BUFSIZE - 1;
if (buffer && len > 0)
memcpy(dev->ep1_out_buf+1, buffer, len);
dev->ep1_out_buf[0] = command;
return usb_bulk_msg(usb_dev, usb_sndbulkpipe(usb_dev, 1),
dev->ep1_out_buf, len+1, &actual_len, 200);
}
int snd_usb_caiaq_set_audio_params (struct snd_usb_caiaqdev *dev,
int rate, int depth, int bpp)
{
int ret;
char tmp[5];
switch (rate) {
case 44100: tmp[0] = SAMPLERATE_44100; break;
case 48000: tmp[0] = SAMPLERATE_48000; break;
case 88200: tmp[0] = SAMPLERATE_88200; break;
case 96000: tmp[0] = SAMPLERATE_96000; break;
case 192000: tmp[0] = SAMPLERATE_192000; break;
default: return -EINVAL;
}
switch (depth) {
case 16: tmp[1] = DEPTH_16; break;
case 24: tmp[1] = DEPTH_24; break;
default: return -EINVAL;
}
tmp[2] = bpp & 0xff;
tmp[3] = bpp >> 8;
tmp[4] = 1; /* packets per microframe */
debug("setting audio params: %d Hz, %d bits, %d bpp\n",
rate, depth, bpp);
dev->audio_parm_answer = -1;
ret = send_command(dev, EP1_CMD_AUDIO_PARAMS, tmp, sizeof(tmp));
if (ret)
return ret;
if (!wait_event_timeout(dev->ep1_wait_queue,
dev->audio_parm_answer >= 0, HZ))
return -EPIPE;
if (dev->audio_parm_answer != 1)
debug("unable to set the device's audio params\n");
return dev->audio_parm_answer == 1 ? 0 : -EINVAL;
}
int snd_usb_caiaq_set_auto_msg (struct snd_usb_caiaqdev *dev,
int digital, int analog, int erp)
{
char tmp[3] = { digital, analog, erp };
return send_command(dev, EP1_CMD_AUTO_MSG, tmp, sizeof(tmp));
}
static void setup_card(struct snd_usb_caiaqdev *dev)
{
int ret;
char val[3];
/* device-specific startup specials */
switch (dev->chip.usb_id) {
case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_RIGKONTROL2):
/* RigKontrol2 - display centered dash ('-') */
val[0] = 0x00;
val[1] = 0x00;
val[2] = 0x01;
send_command(dev, EP1_CMD_WRITE_IO, val, 3);
break;
case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_AK1):
/* Audio Kontrol 1 - make USB-LED stop blinking */
val[0] = 0x00;
send_command(dev, EP1_CMD_WRITE_IO, val, 1);
break;
}
ret = snd_usb_caiaq_audio_init(dev);
if (ret < 0)
log("Unable to set up audio system (ret=%d)\n", ret);
ret = snd_usb_caiaq_midi_init(dev);
if (ret < 0)
log("Unable to set up MIDI system (ret=%d)\n", ret);
#ifdef CONFIG_SND_USB_CAIAQ_INPUT
ret = snd_usb_caiaq_input_init(dev);
if (ret < 0)
log("Unable to set up input system (ret=%d)\n", ret);
#endif
/* finally, register the card and all its sub-instances */
ret = snd_card_register(dev->chip.card);
if (ret < 0) {
log("snd_card_register() returned %d\n", ret);
snd_card_free(dev->chip.card);
}
}
static struct snd_card* create_card(struct usb_device* usb_dev)
{
int devnum;
struct snd_card *card;
struct snd_usb_caiaqdev *dev;
for (devnum = 0; devnum < SNDRV_CARDS; devnum++)
if (enable[devnum] && !snd_card_used[devnum])
break;
if (devnum >= SNDRV_CARDS)
return NULL;
card = snd_card_new(index[devnum], id[devnum], THIS_MODULE,
sizeof(struct snd_usb_caiaqdev));
if (!card)
return NULL;
dev = caiaqdev(card);
dev->chip.dev = usb_dev;
dev->chip.card = card;
dev->chip.usb_id = USB_ID(usb_dev->descriptor.idVendor,
usb_dev->descriptor.idProduct);
spin_lock_init(&dev->spinlock);
snd_card_set_dev(card, &usb_dev->dev);
return card;
}
static int init_card(struct snd_usb_caiaqdev *dev)
{
char *c;
struct usb_device *usb_dev = dev->chip.dev;
struct snd_card *card = dev->chip.card;
int err, len;
if (usb_set_interface(usb_dev, 0, 1) != 0) {
log("can't set alt interface.\n");
return -EIO;
}
usb_init_urb(&dev->ep1_in_urb);
usb_init_urb(&dev->midi_out_urb);
usb_fill_bulk_urb(&dev->ep1_in_urb, usb_dev,
usb_rcvbulkpipe(usb_dev, 0x1),
dev->ep1_in_buf, EP1_BUFSIZE,
usb_ep1_command_reply_dispatch, dev);
usb_fill_bulk_urb(&dev->midi_out_urb, usb_dev,
usb_sndbulkpipe(usb_dev, 0x1),
dev->midi_out_buf, EP1_BUFSIZE,
snd_usb_caiaq_midi_output_done, dev);
init_waitqueue_head(&dev->ep1_wait_queue);
init_waitqueue_head(&dev->prepare_wait_queue);
if (usb_submit_urb(&dev->ep1_in_urb, GFP_KERNEL) != 0)
return -EIO;
err = send_command(dev, EP1_CMD_GET_DEVICE_INFO, NULL, 0);
if (err)
return err;
if (!wait_event_timeout(dev->ep1_wait_queue, dev->spec_received, HZ))
return -ENODEV;
usb_string(usb_dev, usb_dev->descriptor.iManufacturer,
dev->vendor_name, CAIAQ_USB_STR_LEN);
usb_string(usb_dev, usb_dev->descriptor.iProduct,
dev->product_name, CAIAQ_USB_STR_LEN);
usb_string(usb_dev, usb_dev->descriptor.iSerialNumber,
dev->serial, CAIAQ_USB_STR_LEN);
/* terminate serial string at first white space occurence */
c = strchr(dev->serial, ' ');
if (c)
*c = '\0';
strcpy(card->driver, MODNAME);
strcpy(card->shortname, dev->product_name);
len = snprintf(card->longname, sizeof(card->longname),
"%s %s (serial %s, ",
dev->vendor_name, dev->product_name, dev->serial);
if (len < sizeof(card->longname) - 2)
len += usb_make_path(usb_dev, card->longname + len,
sizeof(card->longname) - len);
card->longname[len++] = ')';
card->longname[len] = '\0';
setup_card(dev);
return 0;
}
static int snd_probe(struct usb_interface *intf,
const struct usb_device_id *id)
{
int ret;
struct snd_card *card;
struct usb_device *device = interface_to_usbdev(intf);
card = create_card(device);
if (!card)
return -ENOMEM;
dev_set_drvdata(&intf->dev, card);
ret = init_card(caiaqdev(card));
if (ret < 0) {
log("unable to init card! (ret=%d)\n", ret);
snd_card_free(card);
return ret;
}
return 0;
}
static void snd_disconnect(struct usb_interface *intf)
{
struct snd_usb_caiaqdev *dev;
struct snd_card *card = dev_get_drvdata(&intf->dev);
debug("snd_disconnect(%p)\n", intf);
if (!card)
return;
dev = caiaqdev(card);
snd_card_disconnect(card);
#ifdef CONFIG_SND_USB_CAIAQ_INPUT
snd_usb_caiaq_input_free(dev);
#endif
snd_usb_caiaq_audio_free(dev);
usb_kill_urb(&dev->ep1_in_urb);
usb_kill_urb(&dev->midi_out_urb);
snd_card_free(card);
usb_reset_device(interface_to_usbdev(intf));
}
MODULE_DEVICE_TABLE(usb, snd_usb_id_table);
static struct usb_driver snd_usb_driver = {
.name = MODNAME,
.probe = snd_probe,
.disconnect = snd_disconnect,
.id_table = snd_usb_id_table,
};
static int __init snd_module_init(void)
{
return usb_register(&snd_usb_driver);
}
static void __exit snd_module_exit(void)
{
usb_deregister(&snd_usb_driver);
}
module_init(snd_module_init)
module_exit(snd_module_exit)

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#ifndef CAIAQ_DEVICE_H
#define CAIAQ_DEVICE_H
#include "../usbaudio.h"
#define USB_VID_NATIVEINSTRUMENTS 0x17cc
#define USB_PID_RIGKONTROL2 0x1969
#define USB_PID_KORECONTROLLER 0x4711
#define USB_PID_AK1 0x0815
#define USB_PID_AUDIO8DJ 0x1978
#define EP1_BUFSIZE 64
#define CAIAQ_USB_STR_LEN 0xff
#define MAX_STREAMS 32
//#define SND_USB_CAIAQ_DEBUG
#define MODNAME "snd-usb-caiaq"
#define log(x...) snd_printk(KERN_WARNING MODNAME" log: " x)
#ifdef SND_USB_CAIAQ_DEBUG
#define debug(x...) snd_printk(KERN_WARNING MODNAME " debug: " x)
#else
#define debug(x...) do { } while(0)
#endif
#define EP1_CMD_GET_DEVICE_INFO 0x1
#define EP1_CMD_READ_ERP 0x2
#define EP1_CMD_READ_ANALOG 0x3
#define EP1_CMD_READ_IO 0x4
#define EP1_CMD_WRITE_IO 0x5
#define EP1_CMD_MIDI_READ 0x6
#define EP1_CMD_MIDI_WRITE 0x7
#define EP1_CMD_AUDIO_PARAMS 0x9
#define EP1_CMD_AUTO_MSG 0xb
struct caiaq_device_spec {
unsigned short fw_version;
unsigned char hw_subtype;
unsigned char num_erp;
unsigned char num_analog_in;
unsigned char num_digital_in;
unsigned char num_digital_out;
unsigned char num_analog_audio_out;
unsigned char num_analog_audio_in;
unsigned char num_digital_audio_out;
unsigned char num_digital_audio_in;
unsigned char num_midi_out;
unsigned char num_midi_in;
unsigned char data_alignment;
} __attribute__ ((packed));
struct snd_usb_caiaq_cb_info;
struct snd_usb_caiaqdev {
struct snd_usb_audio chip;
struct urb ep1_in_urb;
struct urb midi_out_urb;
struct urb **data_urbs_in;
struct urb **data_urbs_out;
struct snd_usb_caiaq_cb_info *data_cb_info;
unsigned char ep1_in_buf[EP1_BUFSIZE];
unsigned char ep1_out_buf[EP1_BUFSIZE];
unsigned char midi_out_buf[EP1_BUFSIZE];
struct caiaq_device_spec spec;
spinlock_t spinlock;
wait_queue_head_t ep1_wait_queue;
wait_queue_head_t prepare_wait_queue;
int spec_received, audio_parm_answer;
char vendor_name[CAIAQ_USB_STR_LEN];
char product_name[CAIAQ_USB_STR_LEN];
char serial[CAIAQ_USB_STR_LEN];
int n_streams, n_audio_in, n_audio_out;
int streaming, first_packet, output_running;
int audio_in_buf_pos[MAX_STREAMS];
int audio_out_buf_pos[MAX_STREAMS];
int period_in_count[MAX_STREAMS];
int period_out_count[MAX_STREAMS];
int input_panic, output_panic;
char *audio_in_buf, *audio_out_buf;
unsigned int samplerates;
struct snd_pcm_substream *sub_playback[MAX_STREAMS];
struct snd_pcm_substream *sub_capture[MAX_STREAMS];
/* Linux input */
#ifdef CONFIG_SND_USB_CAIAQ_INPUT
struct input_dev *input_dev;
#endif
/* ALSA */
struct snd_pcm *pcm;
struct snd_pcm_hardware pcm_info;
struct snd_rawmidi *rmidi;
struct snd_rawmidi_substream *midi_receive_substream;
struct snd_rawmidi_substream *midi_out_substream;
};
struct snd_usb_caiaq_cb_info {
struct snd_usb_caiaqdev *dev;
int index;
};
#define caiaqdev(c) ((struct snd_usb_caiaqdev*)(c)->private_data)
int snd_usb_caiaq_set_audio_params (struct snd_usb_caiaqdev *dev, int rate, int depth, int bbp);
int snd_usb_caiaq_set_auto_msg (struct snd_usb_caiaqdev *dev, int digital, int analog, int erp);
#endif /* CAIAQ_DEVICE_H */

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/*
* Copyright (c) 2006,2007 Daniel Mack, Tim Ruetz
*
* 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; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <linux/init.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/input.h>
#include <linux/usb.h>
#include <linux/spinlock.h>
#include <sound/driver.h>
#include <sound/core.h>
#include <sound/rawmidi.h>
#include <sound/pcm.h>
#include "caiaq-device.h"
#include "caiaq-input.h"
#ifdef CONFIG_SND_USB_CAIAQ_INPUT
static unsigned char keycode_ak1[] = { KEY_C, KEY_B, KEY_A };
static unsigned char keycode_rk2[] = { KEY_1, KEY_2, KEY_3, KEY_4,
KEY_5, KEY_6, KEY_7 };
#define DEG90 (range/2)
#define DEG180 (range)
#define DEG270 (DEG90 + DEG180)
#define DEG360 (DEG180 * 2)
#define HIGH_PEAK (268)
#define LOW_PEAK (-7)
/* some of these devices have endless rotation potentiometers
* built in which use two tapers, 90 degrees phase shifted.
* this algorithm decodes them to one single value, ranging
* from 0 to 999 */
static unsigned int decode_erp(unsigned char a, unsigned char b)
{
int weight_a, weight_b;
int pos_a, pos_b;
int ret;
int range = HIGH_PEAK - LOW_PEAK;
int mid_value = (HIGH_PEAK + LOW_PEAK) / 2;
weight_b = abs(mid_value-a) - (range/2 - 100)/2;
if (weight_b < 0)
weight_b = 0;
if (weight_b > 100)
weight_b = 100;
weight_a = 100 - weight_b;
if (a < mid_value) {
/* 0..90 and 270..360 degrees */
pos_b = b - LOW_PEAK + DEG270;
if (pos_b >= DEG360)
pos_b -= DEG360;
} else
/* 90..270 degrees */
pos_b = HIGH_PEAK - b + DEG90;
if (b > mid_value)
/* 0..180 degrees */
pos_a = a - LOW_PEAK;
else
/* 180..360 degrees */
pos_a = HIGH_PEAK - a + DEG180;
/* interpolate both slider values, depending on weight factors */
/* 0..99 x DEG360 */
ret = pos_a * weight_a + pos_b * weight_b;
/* normalize to 0..999 */
ret *= 10;
ret /= DEG360;
if (ret < 0)
ret += 1000;
if (ret >= 1000)
ret -= 1000;
return ret;
}
#undef DEG90
#undef DEG180
#undef DEG270
#undef DEG360
#undef HIGH_PEAK
#undef LOW_PEAK
static void snd_caiaq_input_read_analog(struct snd_usb_caiaqdev *dev,
const char *buf, unsigned int len)
{
switch(dev->input_dev->id.product) {
case USB_PID_RIGKONTROL2:
input_report_abs(dev->input_dev, ABS_X, (buf[4] << 8) |buf[5]);
input_report_abs(dev->input_dev, ABS_Y, (buf[0] << 8) |buf[1]);
input_report_abs(dev->input_dev, ABS_Z, (buf[2] << 8) |buf[3]);
input_sync(dev->input_dev);
break;
}
}
static void snd_caiaq_input_read_erp(struct snd_usb_caiaqdev *dev,
const char *buf, unsigned int len)
{
int i;
switch(dev->input_dev->id.product) {
case USB_PID_AK1:
i = decode_erp(buf[0], buf[1]);
input_report_abs(dev->input_dev, ABS_X, i);
input_sync(dev->input_dev);
break;
}
}
static void snd_caiaq_input_read_io(struct snd_usb_caiaqdev *dev,
char *buf, unsigned int len)
{
int i;
unsigned char *keycode = dev->input_dev->keycode;
if (!keycode)
return;
if (dev->input_dev->id.product == USB_PID_RIGKONTROL2)
for (i=0; i<len; i++)
buf[i] = ~buf[i];
for (i=0; (i<dev->input_dev->keycodemax) && (i < len); i++)
input_report_key(dev->input_dev, keycode[i],
buf[i/8] & (1 << (i%8)));
input_sync(dev->input_dev);
}
void snd_usb_caiaq_input_dispatch(struct snd_usb_caiaqdev *dev,
char *buf,
unsigned int len)
{
if (!dev->input_dev || (len < 1))
return;
switch (buf[0]) {
case EP1_CMD_READ_ANALOG:
snd_caiaq_input_read_analog(dev, buf+1, len-1);
break;
case EP1_CMD_READ_ERP:
snd_caiaq_input_read_erp(dev, buf+1, len-1);
break;
case EP1_CMD_READ_IO:
snd_caiaq_input_read_io(dev, buf+1, len-1);
break;
}
}
int snd_usb_caiaq_input_init(struct snd_usb_caiaqdev *dev)
{
struct usb_device *usb_dev = dev->chip.dev;
struct input_dev *input;
int i, ret;
input = input_allocate_device();
if (!input)
return -ENOMEM;
input->name = dev->product_name;
input->id.bustype = BUS_USB;
input->id.vendor = usb_dev->descriptor.idVendor;
input->id.product = usb_dev->descriptor.idProduct;
input->id.version = usb_dev->descriptor.bcdDevice;
switch (dev->chip.usb_id) {
case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_RIGKONTROL2):
input->evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);
input->absbit[0] = BIT(ABS_X) | BIT(ABS_Y) | BIT(ABS_Z);
input->keycode = keycode_rk2;
input->keycodesize = sizeof(char);
input->keycodemax = ARRAY_SIZE(keycode_rk2);
for (i=0; i<ARRAY_SIZE(keycode_rk2); i++)
set_bit(keycode_rk2[i], input->keybit);
input_set_abs_params(input, ABS_X, 0, 4096, 0, 10);
input_set_abs_params(input, ABS_Y, 0, 4096, 0, 10);
input_set_abs_params(input, ABS_Z, 0, 4096, 0, 10);
snd_usb_caiaq_set_auto_msg(dev, 1, 10, 0);
break;
case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_AK1):
input->evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);
input->absbit[0] = BIT(ABS_X);
input->keycode = keycode_ak1;
input->keycodesize = sizeof(char);
input->keycodemax = ARRAY_SIZE(keycode_ak1);
for (i=0; i<ARRAY_SIZE(keycode_ak1); i++)
set_bit(keycode_ak1[i], input->keybit);
input_set_abs_params(input, ABS_X, 0, 999, 0, 10);
snd_usb_caiaq_set_auto_msg(dev, 1, 0, 5);
break;
default:
/* no input methods supported on this device */
input_free_device(input);
return 0;
}
ret = input_register_device(input);
if (ret < 0) {
input_free_device(input);
return ret;
}
dev->input_dev = input;
return 0;
}
void snd_usb_caiaq_input_free(struct snd_usb_caiaqdev *dev)
{
if (!dev || !dev->input_dev)
return;
input_unregister_device(dev->input_dev);
input_free_device(dev->input_dev);
dev->input_dev = NULL;
}
#endif /* CONFIG_SND_USB_CAIAQ_INPUT */

8
sound/usb/caiaq/caiaq-input.h Normal file
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#ifndef CAIAQ_INPUT_H
#define CAIAQ_INPUT_H
void snd_usb_caiaq_input_dispatch(struct snd_usb_caiaqdev *dev, char *buf, unsigned int len);
int snd_usb_caiaq_input_init(struct snd_usb_caiaqdev *dev);
void snd_usb_caiaq_input_free(struct snd_usb_caiaqdev *dev);
#endif

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sound/usb/caiaq/caiaq-midi.c Normal file
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/*
* Copyright (c) 2006,2007 Daniel Mack
*
* 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; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <linux/init.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/interrupt.h>
#include <linux/usb.h>
#include <linux/input.h>
#include <linux/spinlock.h>
#include <sound/driver.h>
#include <sound/core.h>
#include <sound/rawmidi.h>
#include <sound/pcm.h>
#include "caiaq-device.h"
#include "caiaq-midi.h"
static int snd_usb_caiaq_midi_input_open(struct snd_rawmidi_substream *substream)
{
return 0;
}
static int snd_usb_caiaq_midi_input_close(struct snd_rawmidi_substream *substream)
{
return 0;
}
static void snd_usb_caiaq_midi_input_trigger(struct snd_rawmidi_substream *substream, int up)
{
struct snd_usb_caiaqdev *dev = substream->rmidi->private_data;
if (!dev)
return;
dev->midi_receive_substream = up ? substream : NULL;
}
static int snd_usb_caiaq_midi_output_open(struct snd_rawmidi_substream *substream)
{
return 0;
}
static int snd_usb_caiaq_midi_output_close(struct snd_rawmidi_substream *substream)
{
return 0;
}
static void snd_usb_caiaq_midi_send(struct snd_usb_caiaqdev *dev,
struct snd_rawmidi_substream *substream)
{
int len, ret;
dev->midi_out_buf[0] = EP1_CMD_MIDI_WRITE;
dev->midi_out_buf[1] = 0; /* port */
len = snd_rawmidi_transmit_peek(substream, dev->midi_out_buf+3, EP1_BUFSIZE-3);
if (len <= 0)
return;
dev->midi_out_buf[2] = len;
dev->midi_out_urb.transfer_buffer_length = len+3;
ret = usb_submit_urb(&dev->midi_out_urb, GFP_ATOMIC);
if (ret < 0)
log("snd_usb_caiaq_midi_send(%p): usb_submit_urb() failed, %d\n",
substream, ret);
}
static void snd_usb_caiaq_midi_output_trigger(struct snd_rawmidi_substream *substream, int up)
{
struct snd_usb_caiaqdev *dev = substream->rmidi->private_data;
if (dev->midi_out_substream != NULL)
return;
if (!up) {
dev->midi_out_substream = NULL;
return;
}
dev->midi_out_substream = substream;
snd_usb_caiaq_midi_send(dev, substream);
}
static struct snd_rawmidi_ops snd_usb_caiaq_midi_output =
{
.open = snd_usb_caiaq_midi_output_open,
.close = snd_usb_caiaq_midi_output_close,
.trigger = snd_usb_caiaq_midi_output_trigger,
};
static struct snd_rawmidi_ops snd_usb_caiaq_midi_input =
{
.open = snd_usb_caiaq_midi_input_open,
.close = snd_usb_caiaq_midi_input_close,
.trigger = snd_usb_caiaq_midi_input_trigger,
};
void snd_usb_caiaq_midi_handle_input(struct snd_usb_caiaqdev *dev,
int port, const char *buf, int len)
{
if (!dev->midi_receive_substream)
return;
snd_rawmidi_receive(dev->midi_receive_substream, buf, len);
}
int __devinit snd_usb_caiaq_midi_init(struct snd_usb_caiaqdev *device)
{
int ret;
struct snd_rawmidi *rmidi;
ret = snd_rawmidi_new(device->chip.card, device->product_name, 0,
device->spec.num_midi_out,
device->spec.num_midi_in,
&rmidi);
if (ret < 0)
return ret;
strcpy(rmidi->name, device->product_name);
rmidi->info_flags = SNDRV_RAWMIDI_INFO_DUPLEX;
rmidi->private_data = device;
if (device->spec.num_midi_out > 0) {
rmidi->info_flags |= SNDRV_RAWMIDI_INFO_OUTPUT;
snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_OUTPUT,
&snd_usb_caiaq_midi_output);
}
if (device->spec.num_midi_in > 0) {
rmidi->info_flags |= SNDRV_RAWMIDI_INFO_INPUT;
snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_INPUT,
&snd_usb_caiaq_midi_input);
}
device->rmidi = rmidi;
return 0;
}
void snd_usb_caiaq_midi_output_done(struct urb* urb)
{
struct snd_usb_caiaqdev *dev = urb->context;
char *buf = urb->transfer_buffer;
if (urb->status != 0)
return;
if (!dev->midi_out_substream)
return;
snd_rawmidi_transmit_ack(dev->midi_out_substream, buf[2]);
dev->midi_out_substream = NULL;
snd_usb_caiaq_midi_send(dev, dev->midi_out_substream);
}

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#ifndef CAIAQ_MIDI_H
#define CAIAQ_MIDI_H
int snd_usb_caiaq_midi_init(struct snd_usb_caiaqdev *dev);
void snd_usb_caiaq_midi_handle_input(struct snd_usb_caiaqdev *dev, int port, const char *buf, int len);
void snd_usb_caiaq_midi_output_done(struct urb* urb);
#endif /* CAIAQ_MIDI_H */