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mm-only debug patch...
[mmotm.git] / sound / usb / caiaq / audio.c
blob121af0644fd9bc901fbbc62cb676738e9049e0c7
1 /*
2 * Copyright (c) 2006-2008 Daniel Mack, Karsten Wiese
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17 */
18
19 #include <linux/spinlock.h>
20 #include <linux/init.h>
21 #include <linux/usb.h>
22 #include <sound/core.h>
23 #include <sound/pcm.h>
24
25 #include "device.h"
26 #include "audio.h"
27
28 #define N_URBS 32
29 #define CLOCK_DRIFT_TOLERANCE 5
30 #define FRAMES_PER_URB 8
31 #define BYTES_PER_FRAME 512
32 #define CHANNELS_PER_STREAM 2
33 #define BYTES_PER_SAMPLE 3
34 #define BYTES_PER_SAMPLE_USB 4
35 #define MAX_BUFFER_SIZE (128*1024)
36 #define MAX_ENDPOINT_SIZE 512
37
38 #define ENDPOINT_CAPTURE 2
39 #define ENDPOINT_PLAYBACK 6
40
41 #define MAKE_CHECKBYTE(dev,stream,i) \
42 (stream << 1) | (~(i / (dev->n_streams * BYTES_PER_SAMPLE_USB)) & 1)
43
44 static struct snd_pcm_hardware snd_usb_caiaq_pcm_hardware = {
45 .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
46 SNDRV_PCM_INFO_BLOCK_TRANSFER),
47 .formats = SNDRV_PCM_FMTBIT_S24_3BE,
48 .rates = (SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |
49 SNDRV_PCM_RATE_96000),
50 .rate_min = 44100,
51 .rate_max = 0, /* will overwrite later */
52 .channels_min = CHANNELS_PER_STREAM,
53 .channels_max = CHANNELS_PER_STREAM,
54 .buffer_bytes_max = MAX_BUFFER_SIZE,
55 .period_bytes_min = 128,
56 .period_bytes_max = MAX_BUFFER_SIZE,
57 .periods_min = 1,
58 .periods_max = 1024,
59 };
60
61 static void
62 activate_substream(struct snd_usb_caiaqdev *dev,
63 struct snd_pcm_substream *sub)
64 {
65 if (sub->stream == SNDRV_PCM_STREAM_PLAYBACK)
66 dev->sub_playback[sub->number] = sub;
67 else
68 dev->sub_capture[sub->number] = sub;
69 }
70
71 static void
72 deactivate_substream(struct snd_usb_caiaqdev *dev,
73 struct snd_pcm_substream *sub)
74 {
75 unsigned long flags;
76 spin_lock_irqsave(&dev->spinlock, flags);
77
78 if (sub->stream == SNDRV_PCM_STREAM_PLAYBACK)
79 dev->sub_playback[sub->number] = NULL;
80 else
81 dev->sub_capture[sub->number] = NULL;
82
83 spin_unlock_irqrestore(&dev->spinlock, flags);
84 }
85
86 static int
87 all_substreams_zero(struct snd_pcm_substream **subs)
88 {
89 int i;
90 for (i = 0; i < MAX_STREAMS; i++)
91 if (subs[i] != NULL)
92 return 0;
93 return 1;
94 }
95
96 static int stream_start(struct snd_usb_caiaqdev *dev)
97 {
98 int i, ret;
99
100 debug("%s(%p)\n", __func__, dev);
101
102 if (dev->streaming)
103 return -EINVAL;
104
105 memset(dev->sub_playback, 0, sizeof(dev->sub_playback));
106 memset(dev->sub_capture, 0, sizeof(dev->sub_capture));
107 dev->input_panic = 0;
108 dev->output_panic = 0;
109 dev->first_packet = 1;
110 dev->streaming = 1;
111 dev->warned = 0;
112
113 for (i = 0; i < N_URBS; i++) {
114 ret = usb_submit_urb(dev->data_urbs_in[i], GFP_ATOMIC);
115 if (ret) {
116 log("unable to trigger read #%d! (ret %d)\n", i, ret);
117 dev->streaming = 0;
118 return -EPIPE;
119 }
120 }
121
122 return 0;
123 }
124
125 static void stream_stop(struct snd_usb_caiaqdev *dev)
126 {
127 int i;
128
129 debug("%s(%p)\n", __func__, dev);
130 if (!dev->streaming)
131 return;
132
133 dev->streaming = 0;
134
135 for (i = 0; i < N_URBS; i++) {
136 usb_kill_urb(dev->data_urbs_in[i]);
137 usb_kill_urb(dev->data_urbs_out[i]);
138 }
139 }
140
141 static int snd_usb_caiaq_substream_open(struct snd_pcm_substream *substream)
142 {
143 struct snd_usb_caiaqdev *dev = snd_pcm_substream_chip(substream);
144 debug("%s(%p)\n", __func__, substream);
145 substream->runtime->hw = dev->pcm_info;
146 snd_pcm_limit_hw_rates(substream->runtime);
147 return 0;
148 }
149
150 static int snd_usb_caiaq_substream_close(struct snd_pcm_substream *substream)
151 {
152 struct snd_usb_caiaqdev *dev = snd_pcm_substream_chip(substream);
153
154 debug("%s(%p)\n", __func__, substream);
155 if (all_substreams_zero(dev->sub_playback) &&
156 all_substreams_zero(dev->sub_capture)) {
157 /* when the last client has stopped streaming,
158 * all sample rates are allowed again */
159 stream_stop(dev);
160 dev->pcm_info.rates = dev->samplerates;
161 }
162
163 return 0;
164 }
165
166 static int snd_usb_caiaq_pcm_hw_params(struct snd_pcm_substream *sub,
167 struct snd_pcm_hw_params *hw_params)
168 {
169 debug("%s(%p)\n", __func__, sub);
170 return snd_pcm_lib_malloc_pages(sub, params_buffer_bytes(hw_params));
171 }
172
173 static int snd_usb_caiaq_pcm_hw_free(struct snd_pcm_substream *sub)
174 {
175 struct snd_usb_caiaqdev *dev = snd_pcm_substream_chip(sub);
176 debug("%s(%p)\n", __func__, sub);
177 deactivate_substream(dev, sub);
178 return snd_pcm_lib_free_pages(sub);
179 }
180
181 /* this should probably go upstream */
182 #if SNDRV_PCM_RATE_5512 != 1 << 0 || SNDRV_PCM_RATE_192000 != 1 << 12
183 #error "Change this table"
184 #endif
185
186 static unsigned int rates[] = { 5512, 8000, 11025, 16000, 22050, 32000, 44100,
187 48000, 64000, 88200, 96000, 176400, 192000 };
188
189 static int snd_usb_caiaq_pcm_prepare(struct snd_pcm_substream *substream)
190 {
191 int bytes_per_sample, bpp, ret, i;
192 int index = substream->number;
193 struct snd_usb_caiaqdev *dev = snd_pcm_substream_chip(substream);
194 struct snd_pcm_runtime *runtime = substream->runtime;
195
196 debug("%s(%p)\n", __func__, substream);
197
198 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
199 dev->period_out_count[index] = BYTES_PER_SAMPLE + 1;
200 dev->audio_out_buf_pos[index] = BYTES_PER_SAMPLE + 1;
201 } else {
202 int in_pos = (dev->spec.data_alignment == 2) ? 0 : 2;
203 dev->period_in_count[index] = BYTES_PER_SAMPLE + in_pos;
204 dev->audio_in_buf_pos[index] = BYTES_PER_SAMPLE + in_pos;
205 }
206
207 if (dev->streaming)
208 return 0;
209
210 /* the first client that opens a stream defines the sample rate
211 * setting for all subsequent calls, until the last client closed. */
212 for (i=0; i < ARRAY_SIZE(rates); i++)
213 if (runtime->rate == rates[i])
214 dev->pcm_info.rates = 1 << i;
215
216 snd_pcm_limit_hw_rates(runtime);
217
218 bytes_per_sample = BYTES_PER_SAMPLE;
219 if (dev->spec.data_alignment == 2)
220 bytes_per_sample++;
221
222 bpp = ((runtime->rate / 8000) + CLOCK_DRIFT_TOLERANCE)
223 * bytes_per_sample * CHANNELS_PER_STREAM * dev->n_streams;
224
225 if (bpp > MAX_ENDPOINT_SIZE)
226 bpp = MAX_ENDPOINT_SIZE;
227
228 ret = snd_usb_caiaq_set_audio_params(dev, runtime->rate,
229 runtime->sample_bits, bpp);
230 if (ret)
231 return ret;
232
233 ret = stream_start(dev);
234 if (ret)
235 return ret;
236
237 dev->output_running = 0;
238 wait_event_timeout(dev->prepare_wait_queue, dev->output_running, HZ);
239 if (!dev->output_running) {
240 stream_stop(dev);
241 return -EPIPE;
242 }
243
244 return 0;
245 }
246
247 static int snd_usb_caiaq_pcm_trigger(struct snd_pcm_substream *sub, int cmd)
248 {
249 struct snd_usb_caiaqdev *dev = snd_pcm_substream_chip(sub);
250
251 switch (cmd) {
252 case SNDRV_PCM_TRIGGER_START:
253 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
254 activate_substream(dev, sub);
255 break;
256 case SNDRV_PCM_TRIGGER_STOP:
257 case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
258 deactivate_substream(dev, sub);
259 break;
260 default:
261 return -EINVAL;
262 }
263
264 return 0;
265 }
266
267 static snd_pcm_uframes_t
268 snd_usb_caiaq_pcm_pointer(struct snd_pcm_substream *sub)
269 {
270 int index = sub->number;
271 struct snd_usb_caiaqdev *dev = snd_pcm_substream_chip(sub);
272
273 if (dev->input_panic || dev->output_panic)
274 return SNDRV_PCM_POS_XRUN;
275
276 if (sub->stream == SNDRV_PCM_STREAM_PLAYBACK)
277 return bytes_to_frames(sub->runtime,
278 dev->audio_out_buf_pos[index]);
279 else
280 return bytes_to_frames(sub->runtime,
281 dev->audio_in_buf_pos[index]);
282 }
283
284 /* operators for both playback and capture */
285 static struct snd_pcm_ops snd_usb_caiaq_ops = {
286 .open = snd_usb_caiaq_substream_open,
287 .close = snd_usb_caiaq_substream_close,
288 .ioctl = snd_pcm_lib_ioctl,
289 .hw_params = snd_usb_caiaq_pcm_hw_params,
290 .hw_free = snd_usb_caiaq_pcm_hw_free,
291 .prepare = snd_usb_caiaq_pcm_prepare,
292 .trigger = snd_usb_caiaq_pcm_trigger,
293 .pointer = snd_usb_caiaq_pcm_pointer
294 };
295
296 static void check_for_elapsed_periods(struct snd_usb_caiaqdev *dev,
297 struct snd_pcm_substream **subs)
298 {
299 int stream, pb, *cnt;
300 struct snd_pcm_substream *sub;
301
302 for (stream = 0; stream < dev->n_streams; stream++) {
303 sub = subs[stream];
304 if (!sub)
305 continue;
306
307 pb = snd_pcm_lib_period_bytes(sub);
308 cnt = (sub->stream == SNDRV_PCM_STREAM_PLAYBACK) ?
309 &dev->period_out_count[stream] :
310 &dev->period_in_count[stream];
311
312 if (*cnt >= pb) {
313 snd_pcm_period_elapsed(sub);
314 *cnt %= pb;
315 }
316 }
317 }
318
319 static void read_in_urb_mode0(struct snd_usb_caiaqdev *dev,
320 const struct urb *urb,
321 const struct usb_iso_packet_descriptor *iso)
322 {
323 unsigned char *usb_buf = urb->transfer_buffer + iso->offset;
324 struct snd_pcm_substream *sub;
325 int stream, i;
326
327 if (all_substreams_zero(dev->sub_capture))
328 return;
329
330 for (i = 0; i < iso->actual_length;) {
331 for (stream = 0; stream < dev->n_streams; stream++, i++) {
332 sub = dev->sub_capture[stream];
333 if (sub) {
334 struct snd_pcm_runtime *rt = sub->runtime;
335 char *audio_buf = rt->dma_area;
336 int sz = frames_to_bytes(rt, rt->buffer_size);
337 audio_buf[dev->audio_in_buf_pos[stream]++]
338 = usb_buf[i];
339 dev->period_in_count[stream]++;
340 if (dev->audio_in_buf_pos[stream] == sz)
341 dev->audio_in_buf_pos[stream] = 0;
342 }
343 }
344 }
345 }
346
347 static void read_in_urb_mode2(struct snd_usb_caiaqdev *dev,
348 const struct urb *urb,
349 const struct usb_iso_packet_descriptor *iso)
350 {
351 unsigned char *usb_buf = urb->transfer_buffer + iso->offset;
352 unsigned char check_byte;
353 struct snd_pcm_substream *sub;
354 int stream, i;
355
356 for (i = 0; i < iso->actual_length;) {
357 if (i % (dev->n_streams * BYTES_PER_SAMPLE_USB) == 0) {
358 for (stream = 0;
359 stream < dev->n_streams;
360 stream++, i++) {
361 if (dev->first_packet)
362 continue;
363
364 check_byte = MAKE_CHECKBYTE(dev, stream, i);
365
366 if ((usb_buf[i] & 0x3f) != check_byte)
367 dev->input_panic = 1;
368
369 if (usb_buf[i] & 0x80)
370 dev->output_panic = 1;
371 }
372 }
373 dev->first_packet = 0;
374
375 for (stream = 0; stream < dev->n_streams; stream++, i++) {
376 sub = dev->sub_capture[stream];
377 if (dev->input_panic)
378 usb_buf[i] = 0;
379
380 if (sub) {
381 struct snd_pcm_runtime *rt = sub->runtime;
382 char *audio_buf = rt->dma_area;
383 int sz = frames_to_bytes(rt, rt->buffer_size);
384 audio_buf[dev->audio_in_buf_pos[stream]++] =
385 usb_buf[i];
386 dev->period_in_count[stream]++;
387 if (dev->audio_in_buf_pos[stream] == sz)
388 dev->audio_in_buf_pos[stream] = 0;
389 }
390 }
391 }
392 }
393
394 static void read_in_urb(struct snd_usb_caiaqdev *dev,
395 const struct urb *urb,
396 const struct usb_iso_packet_descriptor *iso)
397 {
398 if (!dev->streaming)
399 return;
400
401 if (iso->actual_length < dev->bpp)
402 return;
403
404 switch (dev->spec.data_alignment) {
405 case 0:
406 read_in_urb_mode0(dev, urb, iso);
407 break;
408 case 2:
409 read_in_urb_mode2(dev, urb, iso);
410 break;
411 }
412
413 if ((dev->input_panic || dev->output_panic) && !dev->warned) {
414 debug("streaming error detected %s %s\n",
415 dev->input_panic ? "(input)" : "",
416 dev->output_panic ? "(output)" : "");
417 dev->warned = 1;
418 }
419 }
420
421 static void fill_out_urb(struct snd_usb_caiaqdev *dev,
422 struct urb *urb,
423 const struct usb_iso_packet_descriptor *iso)
424 {
425 unsigned char *usb_buf = urb->transfer_buffer + iso->offset;
426 struct snd_pcm_substream *sub;
427 int stream, i;
428
429 for (i = 0; i < iso->length;) {
430 for (stream = 0; stream < dev->n_streams; stream++, i++) {
431 sub = dev->sub_playback[stream];
432 if (sub) {
433 struct snd_pcm_runtime *rt = sub->runtime;
434 char *audio_buf = rt->dma_area;
435 int sz = frames_to_bytes(rt, rt->buffer_size);
436 usb_buf[i] =
437 audio_buf[dev->audio_out_buf_pos[stream]];
438 dev->period_out_count[stream]++;
439 dev->audio_out_buf_pos[stream]++;
440 if (dev->audio_out_buf_pos[stream] == sz)
441 dev->audio_out_buf_pos[stream] = 0;
442 } else
443 usb_buf[i] = 0;
444 }
445
446 /* fill in the check bytes */
447 if (dev->spec.data_alignment == 2 &&
448 i % (dev->n_streams * BYTES_PER_SAMPLE_USB) ==
449 (dev->n_streams * CHANNELS_PER_STREAM))
450 for (stream = 0; stream < dev->n_streams; stream++, i++)
451 usb_buf[i] = MAKE_CHECKBYTE(dev, stream, i);
452 }
453 }
454
455 static void read_completed(struct urb *urb)
456 {
457 struct snd_usb_caiaq_cb_info *info = urb->context;
458 struct snd_usb_caiaqdev *dev;
459 struct urb *out;
460 int frame, len, send_it = 0, outframe = 0;
461
462 if (urb->status || !info)
463 return;
464
465 dev = info->dev;
466
467 if (!dev->streaming)
468 return;
469
470 out = dev->data_urbs_out[info->index];
471
472 /* read the recently received packet and send back one which has
473 * the same layout */
474 for (frame = 0; frame < FRAMES_PER_URB; frame++) {
475 if (urb->iso_frame_desc[frame].status)
476 continue;
477
478 len = urb->iso_frame_desc[outframe].actual_length;
479 out->iso_frame_desc[outframe].length = len;
480 out->iso_frame_desc[outframe].actual_length = 0;
481 out->iso_frame_desc[outframe].offset = BYTES_PER_FRAME * frame;
482
483 if (len > 0) {
484 spin_lock(&dev->spinlock);
485 fill_out_urb(dev, out, &out->iso_frame_desc[outframe]);
486 read_in_urb(dev, urb, &urb->iso_frame_desc[frame]);
487 spin_unlock(&dev->spinlock);
488 check_for_elapsed_periods(dev, dev->sub_playback);
489 check_for_elapsed_periods(dev, dev->sub_capture);
490 send_it = 1;
491 }
492
493 outframe++;
494 }
495
496 if (send_it) {
497 out->number_of_packets = FRAMES_PER_URB;
498 out->transfer_flags = URB_ISO_ASAP;
499 usb_submit_urb(out, GFP_ATOMIC);
500 }
501
502 /* re-submit inbound urb */
503 for (frame = 0; frame < FRAMES_PER_URB; frame++) {
504 urb->iso_frame_desc[frame].offset = BYTES_PER_FRAME * frame;
505 urb->iso_frame_desc[frame].length = BYTES_PER_FRAME;
506 urb->iso_frame_desc[frame].actual_length = 0;
507 }
508
509 urb->number_of_packets = FRAMES_PER_URB;
510 urb->transfer_flags = URB_ISO_ASAP;
511 usb_submit_urb(urb, GFP_ATOMIC);
512 }
513
514 static void write_completed(struct urb *urb)
515 {
516 struct snd_usb_caiaq_cb_info *info = urb->context;
517 struct snd_usb_caiaqdev *dev = info->dev;
518
519 if (!dev->output_running) {
520 dev->output_running = 1;
521 wake_up(&dev->prepare_wait_queue);
522 }
523 }
524
525 static struct urb **alloc_urbs(struct snd_usb_caiaqdev *dev, int dir, int *ret)
526 {
527 int i, frame;
528 struct urb **urbs;
529 struct usb_device *usb_dev = dev->chip.dev;
530 unsigned int pipe;
531
532 pipe = (dir == SNDRV_PCM_STREAM_PLAYBACK) ?
533 usb_sndisocpipe(usb_dev, ENDPOINT_PLAYBACK) :
534 usb_rcvisocpipe(usb_dev, ENDPOINT_CAPTURE);
535
536 urbs = kmalloc(N_URBS * sizeof(*urbs), GFP_KERNEL);
537 if (!urbs) {
538 log("unable to kmalloc() urbs, OOM!?\n");
539 *ret = -ENOMEM;
540 return NULL;
541 }
542
543 for (i = 0; i < N_URBS; i++) {
544 urbs[i] = usb_alloc_urb(FRAMES_PER_URB, GFP_KERNEL);
545 if (!urbs[i]) {
546 log("unable to usb_alloc_urb(), OOM!?\n");
547 *ret = -ENOMEM;
548 return urbs;
549 }
550
551 urbs[i]->transfer_buffer =
552 kmalloc(FRAMES_PER_URB * BYTES_PER_FRAME, GFP_KERNEL);
553 if (!urbs[i]->transfer_buffer) {
554 log("unable to kmalloc() transfer buffer, OOM!?\n");
555 *ret = -ENOMEM;
556 return urbs;
557 }
558
559 for (frame = 0; frame < FRAMES_PER_URB; frame++) {
560 struct usb_iso_packet_descriptor *iso =
561 &urbs[i]->iso_frame_desc[frame];
562
563 iso->offset = BYTES_PER_FRAME * frame;
564 iso->length = BYTES_PER_FRAME;
565 }
566
567 urbs[i]->dev = usb_dev;
568 urbs[i]->pipe = pipe;
569 urbs[i]->transfer_buffer_length = FRAMES_PER_URB
570 * BYTES_PER_FRAME;
571 urbs[i]->context = &dev->data_cb_info[i];
572 urbs[i]->interval = 1;
573 urbs[i]->transfer_flags = URB_ISO_ASAP;
574 urbs[i]->number_of_packets = FRAMES_PER_URB;
575 urbs[i]->complete = (dir == SNDRV_PCM_STREAM_CAPTURE) ?
576 read_completed : write_completed;
577 }
578
579 *ret = 0;
580 return urbs;
581 }
582
583 static void free_urbs(struct urb **urbs)
584 {
585 int i;
586
587 if (!urbs)
588 return;
589
590 for (i = 0; i < N_URBS; i++) {
591 if (!urbs[i])
592 continue;
593
594 usb_kill_urb(urbs[i]);
595 kfree(urbs[i]->transfer_buffer);
596 usb_free_urb(urbs[i]);
597 }
598
599 kfree(urbs);
600 }
601
602 int snd_usb_caiaq_audio_init(struct snd_usb_caiaqdev *dev)
603 {
604 int i, ret;
605
606 dev->n_audio_in = max(dev->spec.num_analog_audio_in,
607 dev->spec.num_digital_audio_in) /
608 CHANNELS_PER_STREAM;
609 dev->n_audio_out = max(dev->spec.num_analog_audio_out,
610 dev->spec.num_digital_audio_out) /
611 CHANNELS_PER_STREAM;
612 dev->n_streams = max(dev->n_audio_in, dev->n_audio_out);
613
614 debug("dev->n_audio_in = %d\n", dev->n_audio_in);
615 debug("dev->n_audio_out = %d\n", dev->n_audio_out);
616 debug("dev->n_streams = %d\n", dev->n_streams);
617
618 if (dev->n_streams > MAX_STREAMS) {
619 log("unable to initialize device, too many streams.\n");
620 return -EINVAL;
621 }
622
623 ret = snd_pcm_new(dev->chip.card, dev->product_name, 0,
624 dev->n_audio_out, dev->n_audio_in, &dev->pcm);
625
626 if (ret < 0) {
627 log("snd_pcm_new() returned %d\n", ret);
628 return ret;
629 }
630
631 dev->pcm->private_data = dev;
632 strcpy(dev->pcm->name, dev->product_name);
633
634 memset(dev->sub_playback, 0, sizeof(dev->sub_playback));
635 memset(dev->sub_capture, 0, sizeof(dev->sub_capture));
636
637 memcpy(&dev->pcm_info, &snd_usb_caiaq_pcm_hardware,
638 sizeof(snd_usb_caiaq_pcm_hardware));
639
640 /* setup samplerates */
641 dev->samplerates = dev->pcm_info.rates;
642 switch (dev->chip.usb_id) {
643 case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_AK1):
644 case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_RIGKONTROL3):
645 case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_SESSIONIO):
646 case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_GUITARRIGMOBILE):
647 dev->samplerates |= SNDRV_PCM_RATE_192000;
648 /* fall thru */
649 case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_AUDIO2DJ):
650 case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_AUDIO4DJ):
651 case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_AUDIO8DJ):
652 dev->samplerates |= SNDRV_PCM_RATE_88200;
653 break;
654 }
655
656 snd_pcm_set_ops(dev->pcm, SNDRV_PCM_STREAM_PLAYBACK,
657 &snd_usb_caiaq_ops);
658 snd_pcm_set_ops(dev->pcm, SNDRV_PCM_STREAM_CAPTURE,
659 &snd_usb_caiaq_ops);
660
661 snd_pcm_lib_preallocate_pages_for_all(dev->pcm,
662 SNDRV_DMA_TYPE_CONTINUOUS,
663 snd_dma_continuous_data(GFP_KERNEL),
664 MAX_BUFFER_SIZE, MAX_BUFFER_SIZE);
665
666 dev->data_cb_info =
667 kmalloc(sizeof(struct snd_usb_caiaq_cb_info) * N_URBS,
668 GFP_KERNEL);
669
670 if (!dev->data_cb_info)
671 return -ENOMEM;
672
673 for (i = 0; i < N_URBS; i++) {
674 dev->data_cb_info[i].dev = dev;
675 dev->data_cb_info[i].index = i;
676 }
677
678 dev->data_urbs_in = alloc_urbs(dev, SNDRV_PCM_STREAM_CAPTURE, &ret);
679 if (ret < 0) {
680 kfree(dev->data_cb_info);
681 free_urbs(dev->data_urbs_in);
682 return ret;
683 }
684
685 dev->data_urbs_out = alloc_urbs(dev, SNDRV_PCM_STREAM_PLAYBACK, &ret);
686 if (ret < 0) {
687 kfree(dev->data_cb_info);
688 free_urbs(dev->data_urbs_in);
689 free_urbs(dev->data_urbs_out);
690 return ret;
691 }
692
693 return 0;
694 }
695
696 void snd_usb_caiaq_audio_free(struct snd_usb_caiaqdev *dev)
697 {
698 debug("%s(%p)\n", __func__, dev);
699 stream_stop(dev);
700 free_urbs(dev->data_urbs_in);
701 free_urbs(dev->data_urbs_out);
702 kfree(dev->data_cb_info);
703 }
704
mm of the moment repository