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ASoC: Add ADAU1361/ADAU1761 audio CODEC support
[linux-2.6-block.git] / sound / soc / soc-compress.c
CommitLineData
1245b700
NK		 1/*
2 * soc-compress.c -- ALSA SoC Compress
3 *
4 * Copyright (C) 2012 Intel Corp.
5 *
6 * Authors: Namarta Kohli <namartax.kohli@intel.com>
7 * Ramesh Babu K V <ramesh.babu@linux.intel.com>
8 * Vinod Koul <vinod.koul@linux.intel.com>
9 *
10 * This program is free software; you can redistribute it and/or modify it
11 * under the terms of the GNU General Public License as published by the
12 * Free Software Foundation; either version 2 of the License, or (at your
13 * option) any later version.
14 *
15 */
16
17#include <linux/kernel.h>
18#include <linux/init.h>
19#include <linux/delay.h>
20#include <linux/slab.h>
21#include <linux/workqueue.h>
22#include <sound/core.h>
23#include <sound/compress_params.h>
24#include <sound/compress_driver.h>
25#include <sound/soc.h>
26#include <sound/initval.h>
2a99ef0f 27#include <sound/soc-dpcm.h>
1245b700
NK		 28
29static int soc_compr_open(struct snd_compr_stream *cstream)
30{
31 struct snd_soc_pcm_runtime *rtd = cstream->private_data;
32 struct snd_soc_platform *platform = rtd->platform;
1245b700
NK		 33 int ret = 0;
34
15e2e619
CK		 35 mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass);
36
1245b700
NK		 37 if (platform->driver->compr_ops && platform->driver->compr_ops->open) {
38 ret = platform->driver->compr_ops->open(cstream);
39 if (ret < 0) {
40 pr_err("compress asoc: can't open platform %s\n", platform->name);
41 goto out;
42 }
43 }
44
45 if (rtd->dai_link->compr_ops && rtd->dai_link->compr_ops->startup) {
46 ret = rtd->dai_link->compr_ops->startup(cstream);
47 if (ret < 0) {
48 pr_err("compress asoc: %s startup failed\n", rtd->dai_link->name);
49 goto machine_err;
50 }
51 }
52
24894b76 53 snd_soc_runtime_activate(rtd, cstream->direction);
1245b700 54
15e2e619
CK		 55 mutex_unlock(&rtd->pcm_mutex);
56
1245b700
NK		 57 return 0;
58
59machine_err:
60 if (platform->driver->compr_ops && platform->driver->compr_ops->free)
61 platform->driver->compr_ops->free(cstream);
62out:
15e2e619 63 mutex_unlock(&rtd->pcm_mutex);
1245b700
NK		 64 return ret;
65}
66
2a99ef0f
LG		 67static int soc_compr_open_fe(struct snd_compr_stream *cstream)
68{
69 struct snd_soc_pcm_runtime *fe = cstream->private_data;
70 struct snd_pcm_substream *fe_substream = fe->pcm->streams[0].substream;
71 struct snd_soc_platform *platform = fe->platform;
2a99ef0f
LG		 72 struct snd_soc_dpcm *dpcm;
73 struct snd_soc_dapm_widget_list *list;
74 int stream;
75 int ret = 0;
76
77 if (cstream->direction == SND_COMPRESS_PLAYBACK)
78 stream = SNDRV_PCM_STREAM_PLAYBACK;
79 else
80 stream = SNDRV_PCM_STREAM_CAPTURE;
81
82 mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME);
83
84 if (platform->driver->compr_ops && platform->driver->compr_ops->open) {
85 ret = platform->driver->compr_ops->open(cstream);
86 if (ret < 0) {
87 pr_err("compress asoc: can't open platform %s\n", platform->name);
88 goto out;
89 }
90 }
91
92 if (fe->dai_link->compr_ops && fe->dai_link->compr_ops->startup) {
93 ret = fe->dai_link->compr_ops->startup(cstream);
94 if (ret < 0) {
95 pr_err("compress asoc: %s startup failed\n", fe->dai_link->name);
96 goto machine_err;
97 }
98 }
99
100 fe->dpcm[stream].runtime = fe_substream->runtime;
101
102 if (dpcm_path_get(fe, stream, &list) <= 0) {
103 dev_dbg(fe->dev, "ASoC: %s no valid %s route\n",
104 fe->dai_link->name, stream ? "capture" : "playback");
105 }
106
107 /* calculate valid and active FE <-> BE dpcms */
108 dpcm_process_paths(fe, stream, &list, 1);
109
110 fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_FE;
111
112 ret = dpcm_be_dai_startup(fe, stream);
113 if (ret < 0) {
114 /* clean up all links */
115 list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be)
116 dpcm->state = SND_SOC_DPCM_LINK_STATE_FREE;
117
118 dpcm_be_disconnect(fe, stream);
119 fe->dpcm[stream].runtime = NULL;
120 goto fe_err;
121 }
122
123 dpcm_clear_pending_state(fe, stream);
124 dpcm_path_put(&list);
125
126 fe->dpcm[stream].state = SND_SOC_DPCM_STATE_OPEN;
127 fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO;
128
24894b76 129 snd_soc_runtime_activate(fe, stream);
2a99ef0f
LG		 130
131 mutex_unlock(&fe->card->mutex);
132
133 return 0;
134
135fe_err:
136 if (fe->dai_link->compr_ops && fe->dai_link->compr_ops->shutdown)
137 fe->dai_link->compr_ops->shutdown(cstream);
138machine_err:
139 if (platform->driver->compr_ops && platform->driver->compr_ops->free)
140 platform->driver->compr_ops->free(cstream);
141out:
142 fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO;
143 mutex_unlock(&fe->card->mutex);
144 return ret;
145}
146
202c8f70
CK		 147/*
148 * Power down the audio subsystem pmdown_time msecs after close is called.
149 * This is to ensure there are no pops or clicks in between any music tracks
150 * due to DAPM power cycling.
151 */
152static void close_delayed_work(struct work_struct *work)
153{
154 struct snd_soc_pcm_runtime *rtd =
155 container_of(work, struct snd_soc_pcm_runtime, delayed_work.work);
156 struct snd_soc_dai *codec_dai = rtd->codec_dai;
157
158 mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass);
159
160 dev_dbg(rtd->dev, "ASoC: pop wq checking: %s status: %s waiting: %s\n",
161 codec_dai->driver->playback.stream_name,
162 codec_dai->playback_active ? "active" : "inactive",
163 rtd->pop_wait ? "yes" : "no");
164
165 /* are we waiting on this codec DAI stream */
166 if (rtd->pop_wait == 1) {
167 rtd->pop_wait = 0;
168 snd_soc_dapm_stream_event(rtd, SNDRV_PCM_STREAM_PLAYBACK,
169 SND_SOC_DAPM_STREAM_STOP);
170 }
171
172 mutex_unlock(&rtd->pcm_mutex);
173}
174
1245b700
NK		 175static int soc_compr_free(struct snd_compr_stream *cstream)
176{
177 struct snd_soc_pcm_runtime *rtd = cstream->private_data;
178 struct snd_soc_platform *platform = rtd->platform;
179 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
180 struct snd_soc_dai *codec_dai = rtd->codec_dai;
24894b76 181 int stream;
1245b700 182
15e2e619
CK		 183 mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass);
184
24894b76
LPC		 185 if (cstream->direction == SND_COMPRESS_PLAYBACK)
186 stream = SNDRV_PCM_STREAM_PLAYBACK;
187 else
188 stream = SNDRV_PCM_STREAM_CAPTURE;
1245b700 189
24894b76 190 snd_soc_runtime_deactivate(rtd, stream);
da18396f 191
24894b76 192 snd_soc_dai_digital_mute(codec_dai, 1, cstream->direction);
1245b700
NK		 193
194 if (!cpu_dai->active)
195 cpu_dai->rate = 0;
196
197 if (!codec_dai->active)
198 codec_dai->rate = 0;
199
200
201 if (rtd->dai_link->compr_ops && rtd->dai_link->compr_ops->shutdown)
202 rtd->dai_link->compr_ops->shutdown(cstream);
203
204 if (platform->driver->compr_ops && platform->driver->compr_ops->free)
205 platform->driver->compr_ops->free(cstream);
9d2667a9 206 cpu_dai->runtime = NULL;
1245b700
NK		 207
208 if (cstream->direction == SND_COMPRESS_PLAYBACK) {
208a1589 209 if (snd_soc_runtime_ignore_pmdown_time(rtd)) {
1245b700
NK		 210 snd_soc_dapm_stream_event(rtd,
211 SNDRV_PCM_STREAM_PLAYBACK,
212 SND_SOC_DAPM_STREAM_STOP);
8c3d2aa4 213 } else {
9bffb1fb 214 rtd->pop_wait = 1;
3d24cfe4
MB		 215 queue_delayed_work(system_power_efficient_wq,
216 &rtd->delayed_work,
217 msecs_to_jiffies(rtd->pmdown_time));
8c3d2aa4 218 }
1245b700
NK		 219 } else {
220 /* capture streams can be powered down now */
221 snd_soc_dapm_stream_event(rtd,
222 SNDRV_PCM_STREAM_CAPTURE,
223 SND_SOC_DAPM_STREAM_STOP);
224 }
225
15e2e619 226 mutex_unlock(&rtd->pcm_mutex);
1245b700
NK		 227 return 0;
228}
229
2a99ef0f
LG		 230static int soc_compr_free_fe(struct snd_compr_stream *cstream)
231{
232 struct snd_soc_pcm_runtime *fe = cstream->private_data;
233 struct snd_soc_platform *platform = fe->platform;
2a99ef0f
LG		 234 struct snd_soc_dpcm *dpcm;
235 int stream, ret;
236
237 mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME);
238
24894b76 239 if (cstream->direction == SND_COMPRESS_PLAYBACK)
2a99ef0f 240 stream = SNDRV_PCM_STREAM_PLAYBACK;
24894b76 241 else
2a99ef0f 242 stream = SNDRV_PCM_STREAM_CAPTURE;
2a99ef0f 243
24894b76 244 snd_soc_runtime_deactivate(fe, stream);
2a99ef0f
LG		 245
246 fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_FE;
247
248 ret = dpcm_be_dai_hw_free(fe, stream);
249 if (ret < 0)
250 dev_err(fe->dev, "compressed hw_free failed %d\n", ret);
251
252 ret = dpcm_be_dai_shutdown(fe, stream);
253
254 /* mark FE's links ready to prune */
255 list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be)
256 dpcm->state = SND_SOC_DPCM_LINK_STATE_FREE;
257
258 if (stream == SNDRV_PCM_STREAM_PLAYBACK)
259 dpcm_dapm_stream_event(fe, stream, SND_SOC_DAPM_STREAM_STOP);
260 else
261 dpcm_dapm_stream_event(fe, stream, SND_SOC_DAPM_STREAM_STOP);
262
263 fe->dpcm[stream].state = SND_SOC_DPCM_STATE_CLOSE;
264 fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO;
265
266 dpcm_be_disconnect(fe, stream);
267
268 fe->dpcm[stream].runtime = NULL;
269
270 if (fe->dai_link->compr_ops && fe->dai_link->compr_ops->shutdown)
271 fe->dai_link->compr_ops->shutdown(cstream);
272
273 if (platform->driver->compr_ops && platform->driver->compr_ops->free)
274 platform->driver->compr_ops->free(cstream);
275
276 mutex_unlock(&fe->card->mutex);
277 return 0;
278}
279
1245b700
NK		 280static int soc_compr_trigger(struct snd_compr_stream *cstream, int cmd)
281{
282
283 struct snd_soc_pcm_runtime *rtd = cstream->private_data;
284 struct snd_soc_platform *platform = rtd->platform;
285 struct snd_soc_dai *codec_dai = rtd->codec_dai;
286 int ret = 0;
287
15e2e619
CK		 288 mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass);
289
1245b700
NK		 290 if (platform->driver->compr_ops && platform->driver->compr_ops->trigger) {
291 ret = platform->driver->compr_ops->trigger(cstream, cmd);
292 if (ret < 0)
15e2e619 293 goto out;
1245b700
NK		 294 }
295
da18396f
MB		 296 switch (cmd) {
297 case SNDRV_PCM_TRIGGER_START:
298 snd_soc_dai_digital_mute(codec_dai, 0, cstream->direction);
299 break;
300 case SNDRV_PCM_TRIGGER_STOP:
301 snd_soc_dai_digital_mute(codec_dai, 1, cstream->direction);
302 break;
e38b9b74 303 }
1245b700 304
15e2e619
CK		 305out:
306 mutex_unlock(&rtd->pcm_mutex);
1245b700
NK		 307 return ret;
308}
309
2a99ef0f
LG		 310static int soc_compr_trigger_fe(struct snd_compr_stream *cstream, int cmd)
311{
312 struct snd_soc_pcm_runtime *fe = cstream->private_data;
313 struct snd_soc_platform *platform = fe->platform;
314 int ret = 0, stream;
315
316 if (cmd == SND_COMPR_TRIGGER_PARTIAL_DRAIN ||
317 cmd == SND_COMPR_TRIGGER_DRAIN) {
318
319 if (platform->driver->compr_ops &&
320 platform->driver->compr_ops->trigger)
321 return platform->driver->compr_ops->trigger(cstream, cmd);
322 }
323
324 if (cstream->direction == SND_COMPRESS_PLAYBACK)
325 stream = SNDRV_PCM_STREAM_PLAYBACK;
326 else
327 stream = SNDRV_PCM_STREAM_CAPTURE;
328
329
330 mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME);
331
332 if (platform->driver->compr_ops && platform->driver->compr_ops->trigger) {
333 ret = platform->driver->compr_ops->trigger(cstream, cmd);
334 if (ret < 0)
335 goto out;
336 }
337
338 fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_FE;
339
340 ret = dpcm_be_dai_trigger(fe, stream, cmd);
341
342 switch (cmd) {
343 case SNDRV_PCM_TRIGGER_START:
344 case SNDRV_PCM_TRIGGER_RESUME:
345 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
346 fe->dpcm[stream].state = SND_SOC_DPCM_STATE_START;
347 break;
348 case SNDRV_PCM_TRIGGER_STOP:
349 case SNDRV_PCM_TRIGGER_SUSPEND:
350 fe->dpcm[stream].state = SND_SOC_DPCM_STATE_STOP;
351 break;
352 case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
353 fe->dpcm[stream].state = SND_SOC_DPCM_STATE_PAUSED;
354 break;
355 }
356
357out:
358 fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO;
359 mutex_unlock(&fe->card->mutex);
360 return ret;
361}
362
1245b700
NK		 363static int soc_compr_set_params(struct snd_compr_stream *cstream,
364 struct snd_compr_params *params)
365{
366 struct snd_soc_pcm_runtime *rtd = cstream->private_data;
367 struct snd_soc_platform *platform = rtd->platform;
1245b700
NK		 368 int ret = 0;
369
15e2e619
CK		 370 mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass);
371
1245b700
NK		 372 /* first we call set_params for the platform driver
373 * this should configure the soc side
374 * if the machine has compressed ops then we call that as well
375 * expectation is that platform and machine will configure everything
376 * for this compress path, like configuring pcm port for codec
377 */
378 if (platform->driver->compr_ops && platform->driver->compr_ops->set_params) {
379 ret = platform->driver->compr_ops->set_params(cstream, params);
380 if (ret < 0)
fa40ef20 381 goto err;
1245b700
NK		 382 }
383
384 if (rtd->dai_link->compr_ops && rtd->dai_link->compr_ops->set_params) {
385 ret = rtd->dai_link->compr_ops->set_params(cstream);
386 if (ret < 0)
fa40ef20 387 goto err;
1245b700
NK		 388 }
389
2c071ed7
CK		 390 if (cstream->direction == SND_COMPRESS_PLAYBACK)
391 snd_soc_dapm_stream_event(rtd, SNDRV_PCM_STREAM_PLAYBACK,
392 SND_SOC_DAPM_STREAM_START);
393 else
394 snd_soc_dapm_stream_event(rtd, SNDRV_PCM_STREAM_CAPTURE,
395 SND_SOC_DAPM_STREAM_START);
1245b700 396
fa40ef20
CK		 397 /* cancel any delayed stream shutdown that is pending */
398 rtd->pop_wait = 0;
399 mutex_unlock(&rtd->pcm_mutex);
400
401 cancel_delayed_work_sync(&rtd->delayed_work);
402
403 return ret;
404
405err:
15e2e619 406 mutex_unlock(&rtd->pcm_mutex);
1245b700
NK		 407 return ret;
408}
409
2a99ef0f
LG		 410static int soc_compr_set_params_fe(struct snd_compr_stream *cstream,
411 struct snd_compr_params *params)
412{
413 struct snd_soc_pcm_runtime *fe = cstream->private_data;
414 struct snd_pcm_substream *fe_substream = fe->pcm->streams[0].substream;
415 struct snd_soc_platform *platform = fe->platform;
416 int ret = 0, stream;
417
418 if (cstream->direction == SND_COMPRESS_PLAYBACK)
419 stream = SNDRV_PCM_STREAM_PLAYBACK;
420 else
421 stream = SNDRV_PCM_STREAM_CAPTURE;
422
423 mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME);
424
425 if (platform->driver->compr_ops && platform->driver->compr_ops->set_params) {
426 ret = platform->driver->compr_ops->set_params(cstream, params);
427 if (ret < 0)
428 goto out;
429 }
430
431 if (fe->dai_link->compr_ops && fe->dai_link->compr_ops->set_params) {
432 ret = fe->dai_link->compr_ops->set_params(cstream);
433 if (ret < 0)
434 goto out;
435 }
436
437 /*
438 * Create an empty hw_params for the BE as the machine driver must
439 * fix this up to match DSP decoder and ASRC configuration.
440 * I.e. machine driver fixup for compressed BE is mandatory.
441 */
442 memset(&fe->dpcm[fe_substream->stream].hw_params, 0,
443 sizeof(struct snd_pcm_hw_params));
444
445 fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_FE;
446
447 ret = dpcm_be_dai_hw_params(fe, stream);
448 if (ret < 0)
449 goto out;
450
451 ret = dpcm_be_dai_prepare(fe, stream);
452 if (ret < 0)
453 goto out;
454
455 if (stream == SNDRV_PCM_STREAM_PLAYBACK)
456 dpcm_dapm_stream_event(fe, stream, SND_SOC_DAPM_STREAM_START);
457 else
458 dpcm_dapm_stream_event(fe, stream, SND_SOC_DAPM_STREAM_START);
459
460 fe->dpcm[stream].state = SND_SOC_DPCM_STATE_PREPARE;
461
462out:
463 fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO;
464 mutex_unlock(&fe->card->mutex);
465 return ret;
466}
467
1245b700
NK		 468static int soc_compr_get_params(struct snd_compr_stream *cstream,
469 struct snd_codec *params)
470{
471 struct snd_soc_pcm_runtime *rtd = cstream->private_data;
472 struct snd_soc_platform *platform = rtd->platform;
473 int ret = 0;
474
15e2e619
CK		 475 mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass);
476
1245b700
NK		 477 if (platform->driver->compr_ops && platform->driver->compr_ops->get_params)
478 ret = platform->driver->compr_ops->get_params(cstream, params);
479
15e2e619 480 mutex_unlock(&rtd->pcm_mutex);
1245b700
NK		 481 return ret;
482}
483
484static int soc_compr_get_caps(struct snd_compr_stream *cstream,
485 struct snd_compr_caps *caps)
486{
487 struct snd_soc_pcm_runtime *rtd = cstream->private_data;
488 struct snd_soc_platform *platform = rtd->platform;
489 int ret = 0;
490
15e2e619
CK		 491 mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass);
492
1245b700
NK		 493 if (platform->driver->compr_ops && platform->driver->compr_ops->get_caps)
494 ret = platform->driver->compr_ops->get_caps(cstream, caps);
495
15e2e619 496 mutex_unlock(&rtd->pcm_mutex);
1245b700
NK		 497 return ret;
498}
499
500static int soc_compr_get_codec_caps(struct snd_compr_stream *cstream,
501 struct snd_compr_codec_caps *codec)
502{
503 struct snd_soc_pcm_runtime *rtd = cstream->private_data;
504 struct snd_soc_platform *platform = rtd->platform;
505 int ret = 0;
506
15e2e619
CK		 507 mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass);
508
1245b700
NK		 509 if (platform->driver->compr_ops && platform->driver->compr_ops->get_codec_caps)
510 ret = platform->driver->compr_ops->get_codec_caps(cstream, codec);
511
15e2e619 512 mutex_unlock(&rtd->pcm_mutex);
1245b700
NK		 513 return ret;
514}
515
516static int soc_compr_ack(struct snd_compr_stream *cstream, size_t bytes)
517{
518 struct snd_soc_pcm_runtime *rtd = cstream->private_data;
519 struct snd_soc_platform *platform = rtd->platform;
520 int ret = 0;
521
15e2e619
CK		 522 mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass);
523
1245b700
NK		 524 if (platform->driver->compr_ops && platform->driver->compr_ops->ack)
525 ret = platform->driver->compr_ops->ack(cstream, bytes);
526
15e2e619 527 mutex_unlock(&rtd->pcm_mutex);
1245b700
NK		 528 return ret;
529}
530
531static int soc_compr_pointer(struct snd_compr_stream *cstream,
532 struct snd_compr_tstamp *tstamp)
533{
534 struct snd_soc_pcm_runtime *rtd = cstream->private_data;
535 struct snd_soc_platform *platform = rtd->platform;
536
15e2e619
CK		 537 mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass);
538
1245b700
NK		 539 if (platform->driver->compr_ops && platform->driver->compr_ops->pointer)
540 platform->driver->compr_ops->pointer(cstream, tstamp);
541
15e2e619 542 mutex_unlock(&rtd->pcm_mutex);
1245b700
NK		 543 return 0;
544}
545
1f88eb0f 546static int soc_compr_copy(struct snd_compr_stream *cstream,
4daf891c 547 char __user *buf, size_t count)
1f88eb0f
CK		 548{
549 struct snd_soc_pcm_runtime *rtd = cstream->private_data;
550 struct snd_soc_platform *platform = rtd->platform;
551 int ret = 0;
552
553 mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass);
554
555 if (platform->driver->compr_ops && platform->driver->compr_ops->copy)
556 ret = platform->driver->compr_ops->copy(cstream, buf, count);
557
558 mutex_unlock(&rtd->pcm_mutex);
559 return ret;
560}
561
02bd90e8 562static int soc_compr_set_metadata(struct snd_compr_stream *cstream,
36953d98
JK		 563 struct snd_compr_metadata *metadata)
564{
565 struct snd_soc_pcm_runtime *rtd = cstream->private_data;
566 struct snd_soc_platform *platform = rtd->platform;
567 int ret = 0;
568
569 if (platform->driver->compr_ops && platform->driver->compr_ops->set_metadata)
570 ret = platform->driver->compr_ops->set_metadata(cstream, metadata);
571
572 return ret;
573}
574
02bd90e8 575static int soc_compr_get_metadata(struct snd_compr_stream *cstream,
36953d98
JK		 576 struct snd_compr_metadata *metadata)
577{
578 struct snd_soc_pcm_runtime *rtd = cstream->private_data;
579 struct snd_soc_platform *platform = rtd->platform;
580 int ret = 0;
581
582 if (platform->driver->compr_ops && platform->driver->compr_ops->get_metadata)
583 ret = platform->driver->compr_ops->get_metadata(cstream, metadata);
584
585 return ret;
586}
2a99ef0f 587
1245b700
NK		 588/* ASoC Compress operations */
589static struct snd_compr_ops soc_compr_ops = {
590 .open = soc_compr_open,
591 .free = soc_compr_free,
592 .set_params = soc_compr_set_params,
02bd90e8
VK		 593 .set_metadata = soc_compr_set_metadata,
594 .get_metadata = soc_compr_get_metadata,
1245b700
NK		 595 .get_params = soc_compr_get_params,
596 .trigger = soc_compr_trigger,
597 .pointer = soc_compr_pointer,
598 .ack = soc_compr_ack,
599 .get_caps = soc_compr_get_caps,
600 .get_codec_caps = soc_compr_get_codec_caps
601};
602
2a99ef0f
LG		 603/* ASoC Dynamic Compress operations */
604static struct snd_compr_ops soc_compr_dyn_ops = {
605 .open = soc_compr_open_fe,
606 .free = soc_compr_free_fe,
607 .set_params = soc_compr_set_params_fe,
608 .get_params = soc_compr_get_params,
609 .set_metadata = soc_compr_set_metadata,
610 .get_metadata = soc_compr_get_metadata,
611 .trigger = soc_compr_trigger_fe,
612 .pointer = soc_compr_pointer,
613 .ack = soc_compr_ack,
614 .get_caps = soc_compr_get_caps,
615 .get_codec_caps = soc_compr_get_codec_caps
616};
617
1245b700
NK		 618/* create a new compress */
619int soc_new_compress(struct snd_soc_pcm_runtime *rtd, int num)
620{
621 struct snd_soc_codec *codec = rtd->codec;
1f88eb0f 622 struct snd_soc_platform *platform = rtd->platform;
1245b700
NK		 623 struct snd_soc_dai *codec_dai = rtd->codec_dai;
624 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
625 struct snd_compr *compr;
2a99ef0f 626 struct snd_pcm *be_pcm;
1245b700
NK		 627 char new_name[64];
628 int ret = 0, direction = 0;
629
630 /* check client and interface hw capabilities */
631 snprintf(new_name, sizeof(new_name), "%s %s-%d",
632 rtd->dai_link->stream_name, codec_dai->name, num);
daa2db59
CK		 633
634 if (codec_dai->driver->playback.channels_min)
635 direction = SND_COMPRESS_PLAYBACK;
636 else if (codec_dai->driver->capture.channels_min)
637 direction = SND_COMPRESS_CAPTURE;
638 else
639 return -EINVAL;
640
1245b700
NK		 641 compr = kzalloc(sizeof(*compr), GFP_KERNEL);
642 if (compr == NULL) {
643 snd_printk(KERN_ERR "Cannot allocate compr\n");
644 return -ENOMEM;
645 }
646
1f88eb0f
CK		 647 compr->ops = devm_kzalloc(rtd->card->dev, sizeof(soc_compr_ops),
648 GFP_KERNEL);
649 if (compr->ops == NULL) {
650 dev_err(rtd->card->dev, "Cannot allocate compressed ops\n");
651 ret = -ENOMEM;
652 goto compr_err;
653 }
2a99ef0f
LG		 654
655 if (rtd->dai_link->dynamic) {
656 snprintf(new_name, sizeof(new_name), "(%s)",
657 rtd->dai_link->stream_name);
658
659 ret = snd_pcm_new_internal(rtd->card->snd_card, new_name, num,
660 1, 0, &be_pcm);
661 if (ret < 0) {
662 dev_err(rtd->card->dev, "ASoC: can't create compressed for %s\n",
663 rtd->dai_link->name);
664 goto compr_err;
665 }
666
667 rtd->pcm = be_pcm;
668 rtd->fe_compr = 1;
669 be_pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream->private_data = rtd;
670 be_pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream->private_data = rtd;
671 memcpy(compr->ops, &soc_compr_dyn_ops, sizeof(soc_compr_dyn_ops));
672 } else
673 memcpy(compr->ops, &soc_compr_ops, sizeof(soc_compr_ops));
1f88eb0f
CK		 674
675 /* Add copy callback for not memory mapped DSPs */
676 if (platform->driver->compr_ops && platform->driver->compr_ops->copy)
677 compr->ops->copy = soc_compr_copy;
678
1245b700
NK		 679 mutex_init(&compr->lock);
680 ret = snd_compress_new(rtd->card->snd_card, num, direction, compr);
681 if (ret < 0) {
682 pr_err("compress asoc: can't create compress for codec %s\n",
683 codec->name);
1f88eb0f 684 goto compr_err;
1245b700
NK		 685 }
686
202c8f70
CK		 687 /* DAPM dai link stream work */
688 INIT_DELAYED_WORK(&rtd->delayed_work, close_delayed_work);
689
1245b700
NK		 690 rtd->compr = compr;
691 compr->private_data = rtd;
692
693 printk(KERN_INFO "compress asoc: %s <-> %s mapping ok\n", codec_dai->name,
694 cpu_dai->name);
695 return ret;
1f88eb0f
CK		 696
697compr_err:
698 kfree(compr);
699 return ret;
1245b700 700}
Linux 6.x block layer and io_uring tree(s)