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authorDaniel Mack <daniel@caiaq.de>2009-04-01 19:05:39 +0200
committerTakashi Iwai <tiwai@suse.de>2009-04-14 13:31:17 +0200
commit936e7d03394bc6238091db10d060326622c87ed7 (patch)
treece5e863a2a9669d3540fc2a4edb19db6cc67b6ea /sound/usb/caiaq/caiaq-audio.c
parente431cf45687d1ccb7c7d818defc2af34bd783db2 (diff)
ALSA: snd-usb-caiaq: rename files to remove redundant information in file pathes
Cleanup only, no functional change. Signed-off-by: Daniel Mack <daniel@caiaq.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/usb/caiaq/caiaq-audio.c')
-rw-r--r--sound/usb/caiaq/caiaq-audio.c700
1 files changed, 0 insertions, 700 deletions
diff --git a/sound/usb/caiaq/caiaq-audio.c b/sound/usb/caiaq/caiaq-audio.c
deleted file mode 100644
index cf373311086..00000000000
--- a/sound/usb/caiaq/caiaq-audio.c
+++ /dev/null
@@ -1,700 +0,0 @@
-/*
- * Copyright (c) 2006-2008 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 <linux/spinlock.h>
-#include <linux/init.h>
-#include <linux/usb.h>
-#include <sound/core.h>
-#include <sound/pcm.h>
-
-#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 MAX_ENDPOINT_SIZE 512
-
-#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 = 128,
- .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)
-{
- unsigned long flags;
- spin_lock_irqsave(&dev->spinlock, flags);
-
- if (sub->stream == SNDRV_PCM_STREAM_PLAYBACK)
- dev->sub_playback[sub->number] = NULL;
- else
- dev->sub_capture[sub->number] = NULL;
-
- spin_unlock_irqrestore(&dev->spinlock, flags);
-}
-
-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("%s(%p)\n", __func__, dev);
-
- if (dev->streaming)
- return -EINVAL;
-
- memset(dev->sub_playback, 0, sizeof(dev->sub_playback));
- memset(dev->sub_capture, 0, sizeof(dev->sub_capture));
- dev->input_panic = 0;
- dev->output_panic = 0;
- dev->first_packet = 1;
- dev->streaming = 1;
- dev->warned = 0;
-
- for (i = 0; i < N_URBS; i++) {
- ret = usb_submit_urb(dev->data_urbs_in[i], GFP_ATOMIC);
- if (ret) {
- log("unable to trigger read #%d! (ret %d)\n", i, ret);
- dev->streaming = 0;
- return -EPIPE;
- }
- }
-
- return 0;
-}
-
-static void stream_stop(struct snd_usb_caiaqdev *dev)
-{
- int i;
-
- debug("%s(%p)\n", __func__, dev);
- if (!dev->streaming)
- return;
-
- dev->streaming = 0;
-
- for (i = 0; i < N_URBS; i++) {
- usb_kill_urb(dev->data_urbs_in[i]);
- usb_kill_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("%s(%p)\n", __func__, 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("%s(%p)\n", __func__, 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("%s(%p)\n", __func__, 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("%s(%p)\n", __func__, sub);
- deactivate_substream(dev, sub);
- 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("%s(%p)\n", __func__, 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] = BYTES_PER_SAMPLE;
-
- 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;
-
- if (bpp > MAX_ENDPOINT_SIZE)
- bpp = MAX_ENDPOINT_SIZE;
-
- 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:
- activate_substream(dev, sub);
- break;
- case SNDRV_PCM_TRIGGER_STOP:
- case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
- deactivate_substream(dev, sub);
- 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;
-
- 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;
- }
- }
- }
-}
-
-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;
-
- 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 (dev->input_panic)
- usb_buf[i] = 0;
-
- 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;
- }
- }
- }
-}
-
-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;
-
- if (iso->actual_length < dev->bpp)
- 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) && !dev->warned) {
- debug("streaming error detected %s %s\n",
- dev->input_panic ? "(input)" : "",
- dev->output_panic ? "(output)" : "");
- dev->warned = 1;
- }
-}
-
-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;
-
- for (i = 0; i < iso->length;) {
- for (stream = 0; stream < dev->n_streams; stream++, i++) {
- 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->period_out_count[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);
- }
-}
-
-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) {
- spin_lock(&dev->spinlock);
- fill_out_urb(dev, out, &out->iso_frame_desc[outframe]);
- read_in_urb(dev, urb, &urb->iso_frame_desc[frame]);
- spin_unlock(&dev->spinlock);
- check_for_elapsed_periods(dev, dev->sub_playback);
- check_for_elapsed_periods(dev, dev->sub_capture);
- 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 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):
- case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_RIGKONTROL3):
- case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_SESSIONIO):
- case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_GUITARRIGMOBILE):
- dev->samplerates |= SNDRV_PCM_RATE_192000;
- /* fall thru */
- case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_AUDIO4DJ):
- 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("%s(%p)\n", __func__, dev);
- stream_stop(dev);
- free_urbs(dev->data_urbs_in);
- free_urbs(dev->data_urbs_out);
- kfree(dev->data_cb_info);
-}
-