2 * soc-compress.c -- ALSA SoC Compress
4 * Copyright (C) 2012 Intel Corp.
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>
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.
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>
27 #include <sound/soc-dpcm.h>
29 static int soc_compr_open(struct snd_compr_stream *cstream)
31 struct snd_soc_pcm_runtime *rtd = cstream->private_data;
32 struct snd_soc_platform *platform = rtd->platform;
35 mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass);
37 if (platform->driver->compr_ops && platform->driver->compr_ops->open) {
38 ret = platform->driver->compr_ops->open(cstream);
40 pr_err("compress asoc: can't open platform %s\n",
41 platform->component.name);
46 if (rtd->dai_link->compr_ops && rtd->dai_link->compr_ops->startup) {
47 ret = rtd->dai_link->compr_ops->startup(cstream);
49 pr_err("compress asoc: %s startup failed\n", rtd->dai_link->name);
54 snd_soc_runtime_activate(rtd, cstream->direction);
56 mutex_unlock(&rtd->pcm_mutex);
61 if (platform->driver->compr_ops && platform->driver->compr_ops->free)
62 platform->driver->compr_ops->free(cstream);
64 mutex_unlock(&rtd->pcm_mutex);
68 static int soc_compr_open_fe(struct snd_compr_stream *cstream)
70 struct snd_soc_pcm_runtime *fe = cstream->private_data;
71 struct snd_pcm_substream *fe_substream =
72 fe->pcm->streams[cstream->direction].substream;
73 struct snd_soc_platform *platform = fe->platform;
74 struct snd_soc_dpcm *dpcm;
75 struct snd_soc_dapm_widget_list *list;
79 if (cstream->direction == SND_COMPRESS_PLAYBACK)
80 stream = SNDRV_PCM_STREAM_PLAYBACK;
82 stream = SNDRV_PCM_STREAM_CAPTURE;
84 mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME);
86 if (platform->driver->compr_ops && platform->driver->compr_ops->open) {
87 ret = platform->driver->compr_ops->open(cstream);
89 pr_err("compress asoc: can't open platform %s\n",
90 platform->component.name);
95 if (fe->dai_link->compr_ops && fe->dai_link->compr_ops->startup) {
96 ret = fe->dai_link->compr_ops->startup(cstream);
98 pr_err("compress asoc: %s startup failed\n", fe->dai_link->name);
103 fe->dpcm[stream].runtime = fe_substream->runtime;
105 ret = dpcm_path_get(fe, stream, &list);
109 dev_dbg(fe->dev, "ASoC: %s no valid %s route\n",
110 fe->dai_link->name, stream ? "capture" : "playback");
112 /* calculate valid and active FE <-> BE dpcms */
113 dpcm_process_paths(fe, stream, &list, 1);
115 fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_FE;
117 ret = dpcm_be_dai_startup(fe, stream);
119 /* clean up all links */
120 list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be)
121 dpcm->state = SND_SOC_DPCM_LINK_STATE_FREE;
123 dpcm_be_disconnect(fe, stream);
124 fe->dpcm[stream].runtime = NULL;
128 dpcm_clear_pending_state(fe, stream);
129 dpcm_path_put(&list);
131 fe->dpcm[stream].state = SND_SOC_DPCM_STATE_OPEN;
132 fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO;
134 snd_soc_runtime_activate(fe, stream);
136 mutex_unlock(&fe->card->mutex);
141 dpcm_path_put(&list);
143 if (fe->dai_link->compr_ops && fe->dai_link->compr_ops->shutdown)
144 fe->dai_link->compr_ops->shutdown(cstream);
146 if (platform->driver->compr_ops && platform->driver->compr_ops->free)
147 platform->driver->compr_ops->free(cstream);
149 fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO;
150 mutex_unlock(&fe->card->mutex);
155 * Power down the audio subsystem pmdown_time msecs after close is called.
156 * This is to ensure there are no pops or clicks in between any music tracks
157 * due to DAPM power cycling.
159 static void close_delayed_work(struct work_struct *work)
161 struct snd_soc_pcm_runtime *rtd =
162 container_of(work, struct snd_soc_pcm_runtime, delayed_work.work);
163 struct snd_soc_dai *codec_dai = rtd->codec_dai;
165 mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass);
167 dev_dbg(rtd->dev, "ASoC: pop wq checking: %s status: %s waiting: %s\n",
168 codec_dai->driver->playback.stream_name,
169 codec_dai->playback_active ? "active" : "inactive",
170 rtd->pop_wait ? "yes" : "no");
172 /* are we waiting on this codec DAI stream */
173 if (rtd->pop_wait == 1) {
175 snd_soc_dapm_stream_event(rtd, SNDRV_PCM_STREAM_PLAYBACK,
176 SND_SOC_DAPM_STREAM_STOP);
179 mutex_unlock(&rtd->pcm_mutex);
182 static int soc_compr_free(struct snd_compr_stream *cstream)
184 struct snd_soc_pcm_runtime *rtd = cstream->private_data;
185 struct snd_soc_platform *platform = rtd->platform;
186 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
187 struct snd_soc_dai *codec_dai = rtd->codec_dai;
190 mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass);
192 if (cstream->direction == SND_COMPRESS_PLAYBACK)
193 stream = SNDRV_PCM_STREAM_PLAYBACK;
195 stream = SNDRV_PCM_STREAM_CAPTURE;
197 snd_soc_runtime_deactivate(rtd, stream);
199 snd_soc_dai_digital_mute(codec_dai, 1, cstream->direction);
201 if (!cpu_dai->active)
204 if (!codec_dai->active)
208 if (rtd->dai_link->compr_ops && rtd->dai_link->compr_ops->shutdown)
209 rtd->dai_link->compr_ops->shutdown(cstream);
211 if (platform->driver->compr_ops && platform->driver->compr_ops->free)
212 platform->driver->compr_ops->free(cstream);
214 if (cstream->direction == SND_COMPRESS_PLAYBACK) {
215 if (snd_soc_runtime_ignore_pmdown_time(rtd)) {
216 snd_soc_dapm_stream_event(rtd,
217 SNDRV_PCM_STREAM_PLAYBACK,
218 SND_SOC_DAPM_STREAM_STOP);
221 queue_delayed_work(system_power_efficient_wq,
223 msecs_to_jiffies(rtd->pmdown_time));
226 /* capture streams can be powered down now */
227 snd_soc_dapm_stream_event(rtd,
228 SNDRV_PCM_STREAM_CAPTURE,
229 SND_SOC_DAPM_STREAM_STOP);
232 mutex_unlock(&rtd->pcm_mutex);
236 static int soc_compr_free_fe(struct snd_compr_stream *cstream)
238 struct snd_soc_pcm_runtime *fe = cstream->private_data;
239 struct snd_soc_platform *platform = fe->platform;
240 struct snd_soc_dpcm *dpcm;
243 mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME);
245 if (cstream->direction == SND_COMPRESS_PLAYBACK)
246 stream = SNDRV_PCM_STREAM_PLAYBACK;
248 stream = SNDRV_PCM_STREAM_CAPTURE;
250 snd_soc_runtime_deactivate(fe, stream);
252 fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_FE;
254 ret = dpcm_be_dai_hw_free(fe, stream);
256 dev_err(fe->dev, "compressed hw_free failed %d\n", ret);
258 ret = dpcm_be_dai_shutdown(fe, stream);
260 /* mark FE's links ready to prune */
261 list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be)
262 dpcm->state = SND_SOC_DPCM_LINK_STATE_FREE;
264 dpcm_dapm_stream_event(fe, stream, SND_SOC_DAPM_STREAM_STOP);
266 fe->dpcm[stream].state = SND_SOC_DPCM_STATE_CLOSE;
267 fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO;
269 dpcm_be_disconnect(fe, stream);
271 fe->dpcm[stream].runtime = NULL;
273 if (fe->dai_link->compr_ops && fe->dai_link->compr_ops->shutdown)
274 fe->dai_link->compr_ops->shutdown(cstream);
276 if (platform->driver->compr_ops && platform->driver->compr_ops->free)
277 platform->driver->compr_ops->free(cstream);
279 mutex_unlock(&fe->card->mutex);
283 static int soc_compr_trigger(struct snd_compr_stream *cstream, int cmd)
286 struct snd_soc_pcm_runtime *rtd = cstream->private_data;
287 struct snd_soc_platform *platform = rtd->platform;
288 struct snd_soc_dai *codec_dai = rtd->codec_dai;
291 mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass);
293 if (platform->driver->compr_ops && platform->driver->compr_ops->trigger) {
294 ret = platform->driver->compr_ops->trigger(cstream, cmd);
300 case SNDRV_PCM_TRIGGER_START:
301 snd_soc_dai_digital_mute(codec_dai, 0, cstream->direction);
303 case SNDRV_PCM_TRIGGER_STOP:
304 snd_soc_dai_digital_mute(codec_dai, 1, cstream->direction);
309 mutex_unlock(&rtd->pcm_mutex);
313 static int soc_compr_trigger_fe(struct snd_compr_stream *cstream, int cmd)
315 struct snd_soc_pcm_runtime *fe = cstream->private_data;
316 struct snd_soc_platform *platform = fe->platform;
319 if (cmd == SND_COMPR_TRIGGER_PARTIAL_DRAIN ||
320 cmd == SND_COMPR_TRIGGER_DRAIN) {
322 if (platform->driver->compr_ops &&
323 platform->driver->compr_ops->trigger)
324 return platform->driver->compr_ops->trigger(cstream,
328 if (cstream->direction == SND_COMPRESS_PLAYBACK)
329 stream = SNDRV_PCM_STREAM_PLAYBACK;
331 stream = SNDRV_PCM_STREAM_CAPTURE;
334 mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME);
336 if (platform->driver->compr_ops && platform->driver->compr_ops->trigger) {
337 ret = platform->driver->compr_ops->trigger(cstream, cmd);
342 fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_FE;
344 ret = dpcm_be_dai_trigger(fe, stream, cmd);
347 case SNDRV_PCM_TRIGGER_START:
348 case SNDRV_PCM_TRIGGER_RESUME:
349 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
350 fe->dpcm[stream].state = SND_SOC_DPCM_STATE_START;
352 case SNDRV_PCM_TRIGGER_STOP:
353 case SNDRV_PCM_TRIGGER_SUSPEND:
354 fe->dpcm[stream].state = SND_SOC_DPCM_STATE_STOP;
356 case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
357 fe->dpcm[stream].state = SND_SOC_DPCM_STATE_PAUSED;
362 fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO;
363 mutex_unlock(&fe->card->mutex);
367 static int soc_compr_set_params(struct snd_compr_stream *cstream,
368 struct snd_compr_params *params)
370 struct snd_soc_pcm_runtime *rtd = cstream->private_data;
371 struct snd_soc_platform *platform = rtd->platform;
374 mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass);
376 /* first we call set_params for the platform driver
377 * this should configure the soc side
378 * if the machine has compressed ops then we call that as well
379 * expectation is that platform and machine will configure everything
380 * for this compress path, like configuring pcm port for codec
382 if (platform->driver->compr_ops && platform->driver->compr_ops->set_params) {
383 ret = platform->driver->compr_ops->set_params(cstream, params);
388 if (rtd->dai_link->compr_ops && rtd->dai_link->compr_ops->set_params) {
389 ret = rtd->dai_link->compr_ops->set_params(cstream);
394 if (cstream->direction == SND_COMPRESS_PLAYBACK)
395 snd_soc_dapm_stream_event(rtd, SNDRV_PCM_STREAM_PLAYBACK,
396 SND_SOC_DAPM_STREAM_START);
398 snd_soc_dapm_stream_event(rtd, SNDRV_PCM_STREAM_CAPTURE,
399 SND_SOC_DAPM_STREAM_START);
401 /* cancel any delayed stream shutdown that is pending */
403 mutex_unlock(&rtd->pcm_mutex);
405 cancel_delayed_work_sync(&rtd->delayed_work);
410 mutex_unlock(&rtd->pcm_mutex);
414 static int soc_compr_set_params_fe(struct snd_compr_stream *cstream,
415 struct snd_compr_params *params)
417 struct snd_soc_pcm_runtime *fe = cstream->private_data;
418 struct snd_pcm_substream *fe_substream =
419 fe->pcm->streams[cstream->direction].substream;
420 struct snd_soc_platform *platform = fe->platform;
423 if (cstream->direction == SND_COMPRESS_PLAYBACK)
424 stream = SNDRV_PCM_STREAM_PLAYBACK;
426 stream = SNDRV_PCM_STREAM_CAPTURE;
428 mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME);
430 if (platform->driver->compr_ops && platform->driver->compr_ops->set_params) {
431 ret = platform->driver->compr_ops->set_params(cstream, params);
436 if (fe->dai_link->compr_ops && fe->dai_link->compr_ops->set_params) {
437 ret = fe->dai_link->compr_ops->set_params(cstream);
443 * Create an empty hw_params for the BE as the machine driver must
444 * fix this up to match DSP decoder and ASRC configuration.
445 * I.e. machine driver fixup for compressed BE is mandatory.
447 memset(&fe->dpcm[fe_substream->stream].hw_params, 0,
448 sizeof(struct snd_pcm_hw_params));
450 fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_FE;
452 ret = dpcm_be_dai_hw_params(fe, stream);
456 ret = dpcm_be_dai_prepare(fe, stream);
460 dpcm_dapm_stream_event(fe, stream, SND_SOC_DAPM_STREAM_START);
461 fe->dpcm[stream].state = SND_SOC_DPCM_STATE_PREPARE;
464 fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO;
465 mutex_unlock(&fe->card->mutex);
469 static int soc_compr_get_params(struct snd_compr_stream *cstream,
470 struct snd_codec *params)
472 struct snd_soc_pcm_runtime *rtd = cstream->private_data;
473 struct snd_soc_platform *platform = rtd->platform;
476 mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass);
478 if (platform->driver->compr_ops && platform->driver->compr_ops->get_params)
479 ret = platform->driver->compr_ops->get_params(cstream, params);
481 mutex_unlock(&rtd->pcm_mutex);
485 static int soc_compr_get_caps(struct snd_compr_stream *cstream,
486 struct snd_compr_caps *caps)
488 struct snd_soc_pcm_runtime *rtd = cstream->private_data;
489 struct snd_soc_platform *platform = rtd->platform;
492 mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass);
494 if (platform->driver->compr_ops && platform->driver->compr_ops->get_caps)
495 ret = platform->driver->compr_ops->get_caps(cstream, caps);
497 mutex_unlock(&rtd->pcm_mutex);
501 static int soc_compr_get_codec_caps(struct snd_compr_stream *cstream,
502 struct snd_compr_codec_caps *codec)
504 struct snd_soc_pcm_runtime *rtd = cstream->private_data;
505 struct snd_soc_platform *platform = rtd->platform;
508 mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass);
510 if (platform->driver->compr_ops && platform->driver->compr_ops->get_codec_caps)
511 ret = platform->driver->compr_ops->get_codec_caps(cstream, codec);
513 mutex_unlock(&rtd->pcm_mutex);
517 static int soc_compr_ack(struct snd_compr_stream *cstream, size_t bytes)
519 struct snd_soc_pcm_runtime *rtd = cstream->private_data;
520 struct snd_soc_platform *platform = rtd->platform;
523 mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass);
525 if (platform->driver->compr_ops && platform->driver->compr_ops->ack)
526 ret = platform->driver->compr_ops->ack(cstream, bytes);
528 mutex_unlock(&rtd->pcm_mutex);
532 static int soc_compr_pointer(struct snd_compr_stream *cstream,
533 struct snd_compr_tstamp *tstamp)
535 struct snd_soc_pcm_runtime *rtd = cstream->private_data;
536 struct snd_soc_platform *platform = rtd->platform;
539 mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass);
541 if (platform->driver->compr_ops && platform->driver->compr_ops->pointer)
542 ret = platform->driver->compr_ops->pointer(cstream, tstamp);
544 mutex_unlock(&rtd->pcm_mutex);
548 static int soc_compr_copy(struct snd_compr_stream *cstream,
549 char __user *buf, size_t count)
551 struct snd_soc_pcm_runtime *rtd = cstream->private_data;
552 struct snd_soc_platform *platform = rtd->platform;
555 mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass);
557 if (platform->driver->compr_ops && platform->driver->compr_ops->copy)
558 ret = platform->driver->compr_ops->copy(cstream, buf, count);
560 mutex_unlock(&rtd->pcm_mutex);
564 static int soc_compr_set_metadata(struct snd_compr_stream *cstream,
565 struct snd_compr_metadata *metadata)
567 struct snd_soc_pcm_runtime *rtd = cstream->private_data;
568 struct snd_soc_platform *platform = rtd->platform;
571 if (platform->driver->compr_ops && platform->driver->compr_ops->set_metadata)
572 ret = platform->driver->compr_ops->set_metadata(cstream, metadata);
577 static int soc_compr_get_metadata(struct snd_compr_stream *cstream,
578 struct snd_compr_metadata *metadata)
580 struct snd_soc_pcm_runtime *rtd = cstream->private_data;
581 struct snd_soc_platform *platform = rtd->platform;
584 if (platform->driver->compr_ops && platform->driver->compr_ops->get_metadata)
585 ret = platform->driver->compr_ops->get_metadata(cstream, metadata);
590 /* ASoC Compress operations */
591 static struct snd_compr_ops soc_compr_ops = {
592 .open = soc_compr_open,
593 .free = soc_compr_free,
594 .set_params = soc_compr_set_params,
595 .set_metadata = soc_compr_set_metadata,
596 .get_metadata = soc_compr_get_metadata,
597 .get_params = soc_compr_get_params,
598 .trigger = soc_compr_trigger,
599 .pointer = soc_compr_pointer,
600 .ack = soc_compr_ack,
601 .get_caps = soc_compr_get_caps,
602 .get_codec_caps = soc_compr_get_codec_caps
605 /* ASoC Dynamic Compress operations */
606 static struct snd_compr_ops soc_compr_dyn_ops = {
607 .open = soc_compr_open_fe,
608 .free = soc_compr_free_fe,
609 .set_params = soc_compr_set_params_fe,
610 .get_params = soc_compr_get_params,
611 .set_metadata = soc_compr_set_metadata,
612 .get_metadata = soc_compr_get_metadata,
613 .trigger = soc_compr_trigger_fe,
614 .pointer = soc_compr_pointer,
615 .ack = soc_compr_ack,
616 .get_caps = soc_compr_get_caps,
617 .get_codec_caps = soc_compr_get_codec_caps
621 * snd_soc_new_compress - create a new compress.
623 * @rtd: The runtime for which we will create compress
624 * @num: the device index number (zero based - shared with normal PCMs)
626 * Return: 0 for success, else error.
628 int snd_soc_new_compress(struct snd_soc_pcm_runtime *rtd, int num)
630 struct snd_soc_codec *codec = rtd->codec;
631 struct snd_soc_platform *platform = rtd->platform;
632 struct snd_soc_dai *codec_dai = rtd->codec_dai;
633 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
634 struct snd_compr *compr;
635 struct snd_pcm *be_pcm;
637 int ret = 0, direction = 0;
638 int playback = 0, capture = 0;
640 if (rtd->num_codecs > 1) {
641 dev_err(rtd->card->dev, "Multicodec not supported for compressed stream\n");
645 /* check client and interface hw capabilities */
646 snprintf(new_name, sizeof(new_name), "%s %s-%d",
647 rtd->dai_link->stream_name, codec_dai->name, num);
649 if (codec_dai->driver->playback.channels_min)
651 if (codec_dai->driver->capture.channels_min)
654 capture = capture && cpu_dai->driver->capture.channels_min;
655 playback = playback && cpu_dai->driver->playback.channels_min;
658 * Compress devices are unidirectional so only one of the directions
659 * should be set, check for that (xor)
661 if (playback + capture != 1) {
662 dev_err(rtd->card->dev, "Invalid direction for compress P %d, C %d\n",
668 direction = SND_COMPRESS_PLAYBACK;
670 direction = SND_COMPRESS_CAPTURE;
672 compr = kzalloc(sizeof(*compr), GFP_KERNEL);
674 snd_printk(KERN_ERR "Cannot allocate compr\n");
678 compr->ops = devm_kzalloc(rtd->card->dev, sizeof(soc_compr_ops),
680 if (compr->ops == NULL) {
681 dev_err(rtd->card->dev, "Cannot allocate compressed ops\n");
686 if (rtd->dai_link->dynamic) {
687 snprintf(new_name, sizeof(new_name), "(%s)",
688 rtd->dai_link->stream_name);
690 ret = snd_pcm_new_internal(rtd->card->snd_card, new_name, num,
691 rtd->dai_link->dpcm_playback,
692 rtd->dai_link->dpcm_capture, &be_pcm);
694 dev_err(rtd->card->dev, "ASoC: can't create compressed for %s\n",
695 rtd->dai_link->name);
701 if (rtd->dai_link->dpcm_playback)
702 be_pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream->private_data = rtd;
703 else if (rtd->dai_link->dpcm_capture)
704 be_pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream->private_data = rtd;
705 memcpy(compr->ops, &soc_compr_dyn_ops, sizeof(soc_compr_dyn_ops));
707 memcpy(compr->ops, &soc_compr_ops, sizeof(soc_compr_ops));
709 /* Add copy callback for not memory mapped DSPs */
710 if (platform->driver->compr_ops && platform->driver->compr_ops->copy)
711 compr->ops->copy = soc_compr_copy;
713 mutex_init(&compr->lock);
715 snprintf(new_name, sizeof(new_name), "%s %s-%d",
716 rtd->dai_link->stream_name,
717 rtd->codec_dai->name, num);
719 ret = snd_compress_new(rtd->card->snd_card, num, direction,
722 pr_err("compress asoc: can't create compress for codec %s\n",
723 codec->component.name);
727 /* DAPM dai link stream work */
728 INIT_DELAYED_WORK(&rtd->delayed_work, close_delayed_work);
731 compr->private_data = rtd;
733 printk(KERN_INFO "compress asoc: %s <-> %s mapping ok\n", codec_dai->name,
741 EXPORT_SYMBOL_GPL(snd_soc_new_compress);