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", platform
->name
);
45 if (rtd
->dai_link
->compr_ops
&& rtd
->dai_link
->compr_ops
->startup
) {
46 ret
= rtd
->dai_link
->compr_ops
->startup(cstream
);
48 pr_err("compress asoc: %s startup failed\n", rtd
->dai_link
->name
);
53 snd_soc_runtime_activate(rtd
, cstream
->direction
);
55 mutex_unlock(&rtd
->pcm_mutex
);
60 if (platform
->driver
->compr_ops
&& platform
->driver
->compr_ops
->free
)
61 platform
->driver
->compr_ops
->free(cstream
);
63 mutex_unlock(&rtd
->pcm_mutex
);
67 static int soc_compr_open_fe(struct snd_compr_stream
*cstream
)
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
;
72 struct snd_soc_dpcm
*dpcm
;
73 struct snd_soc_dapm_widget_list
*list
;
77 if (cstream
->direction
== SND_COMPRESS_PLAYBACK
)
78 stream
= SNDRV_PCM_STREAM_PLAYBACK
;
80 stream
= SNDRV_PCM_STREAM_CAPTURE
;
82 mutex_lock_nested(&fe
->card
->mutex
, SND_SOC_CARD_CLASS_RUNTIME
);
84 if (platform
->driver
->compr_ops
&& platform
->driver
->compr_ops
->open
) {
85 ret
= platform
->driver
->compr_ops
->open(cstream
);
87 pr_err("compress asoc: can't open platform %s\n", platform
->name
);
92 if (fe
->dai_link
->compr_ops
&& fe
->dai_link
->compr_ops
->startup
) {
93 ret
= fe
->dai_link
->compr_ops
->startup(cstream
);
95 pr_err("compress asoc: %s startup failed\n", fe
->dai_link
->name
);
100 fe
->dpcm
[stream
].runtime
= fe_substream
->runtime
;
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");
107 /* calculate valid and active FE <-> BE dpcms */
108 dpcm_process_paths(fe
, stream
, &list
, 1);
110 fe
->dpcm
[stream
].runtime_update
= SND_SOC_DPCM_UPDATE_FE
;
112 ret
= dpcm_be_dai_startup(fe
, stream
);
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
;
118 dpcm_be_disconnect(fe
, stream
);
119 fe
->dpcm
[stream
].runtime
= NULL
;
123 dpcm_clear_pending_state(fe
, stream
);
124 dpcm_path_put(&list
);
126 fe
->dpcm
[stream
].state
= SND_SOC_DPCM_STATE_OPEN
;
127 fe
->dpcm
[stream
].runtime_update
= SND_SOC_DPCM_UPDATE_NO
;
129 snd_soc_runtime_activate(fe
, stream
);
131 mutex_unlock(&fe
->card
->mutex
);
136 if (fe
->dai_link
->compr_ops
&& fe
->dai_link
->compr_ops
->shutdown
)
137 fe
->dai_link
->compr_ops
->shutdown(cstream
);
139 if (platform
->driver
->compr_ops
&& platform
->driver
->compr_ops
->free
)
140 platform
->driver
->compr_ops
->free(cstream
);
142 fe
->dpcm
[stream
].runtime_update
= SND_SOC_DPCM_UPDATE_NO
;
143 mutex_unlock(&fe
->card
->mutex
);
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.
152 static void close_delayed_work(struct work_struct
*work
)
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
;
158 mutex_lock_nested(&rtd
->pcm_mutex
, rtd
->pcm_subclass
);
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");
165 /* are we waiting on this codec DAI stream */
166 if (rtd
->pop_wait
== 1) {
168 snd_soc_dapm_stream_event(rtd
, SNDRV_PCM_STREAM_PLAYBACK
,
169 SND_SOC_DAPM_STREAM_STOP
);
172 mutex_unlock(&rtd
->pcm_mutex
);
175 static int soc_compr_free(struct snd_compr_stream
*cstream
)
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
;
183 mutex_lock_nested(&rtd
->pcm_mutex
, rtd
->pcm_subclass
);
185 if (cstream
->direction
== SND_COMPRESS_PLAYBACK
)
186 stream
= SNDRV_PCM_STREAM_PLAYBACK
;
188 stream
= SNDRV_PCM_STREAM_CAPTURE
;
190 snd_soc_runtime_deactivate(rtd
, stream
);
192 snd_soc_dai_digital_mute(codec_dai
, 1, cstream
->direction
);
194 if (!cpu_dai
->active
)
197 if (!codec_dai
->active
)
201 if (rtd
->dai_link
->compr_ops
&& rtd
->dai_link
->compr_ops
->shutdown
)
202 rtd
->dai_link
->compr_ops
->shutdown(cstream
);
204 if (platform
->driver
->compr_ops
&& platform
->driver
->compr_ops
->free
)
205 platform
->driver
->compr_ops
->free(cstream
);
206 cpu_dai
->runtime
= NULL
;
208 if (cstream
->direction
== SND_COMPRESS_PLAYBACK
) {
209 if (snd_soc_runtime_ignore_pmdown_time(rtd
)) {
210 snd_soc_dapm_stream_event(rtd
,
211 SNDRV_PCM_STREAM_PLAYBACK
,
212 SND_SOC_DAPM_STREAM_STOP
);
215 queue_delayed_work(system_power_efficient_wq
,
217 msecs_to_jiffies(rtd
->pmdown_time
));
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
);
226 mutex_unlock(&rtd
->pcm_mutex
);
230 static int soc_compr_free_fe(struct snd_compr_stream
*cstream
)
232 struct snd_soc_pcm_runtime
*fe
= cstream
->private_data
;
233 struct snd_soc_platform
*platform
= fe
->platform
;
234 struct snd_soc_dpcm
*dpcm
;
237 mutex_lock_nested(&fe
->card
->mutex
, SND_SOC_CARD_CLASS_RUNTIME
);
239 if (cstream
->direction
== SND_COMPRESS_PLAYBACK
)
240 stream
= SNDRV_PCM_STREAM_PLAYBACK
;
242 stream
= SNDRV_PCM_STREAM_CAPTURE
;
244 snd_soc_runtime_deactivate(fe
, stream
);
246 fe
->dpcm
[stream
].runtime_update
= SND_SOC_DPCM_UPDATE_FE
;
248 ret
= dpcm_be_dai_hw_free(fe
, stream
);
250 dev_err(fe
->dev
, "compressed hw_free failed %d\n", ret
);
252 ret
= dpcm_be_dai_shutdown(fe
, stream
);
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
;
258 if (stream
== SNDRV_PCM_STREAM_PLAYBACK
)
259 dpcm_dapm_stream_event(fe
, stream
, SND_SOC_DAPM_STREAM_STOP
);
261 dpcm_dapm_stream_event(fe
, stream
, SND_SOC_DAPM_STREAM_STOP
);
263 fe
->dpcm
[stream
].state
= SND_SOC_DPCM_STATE_CLOSE
;
264 fe
->dpcm
[stream
].runtime_update
= SND_SOC_DPCM_UPDATE_NO
;
266 dpcm_be_disconnect(fe
, stream
);
268 fe
->dpcm
[stream
].runtime
= NULL
;
270 if (fe
->dai_link
->compr_ops
&& fe
->dai_link
->compr_ops
->shutdown
)
271 fe
->dai_link
->compr_ops
->shutdown(cstream
);
273 if (platform
->driver
->compr_ops
&& platform
->driver
->compr_ops
->free
)
274 platform
->driver
->compr_ops
->free(cstream
);
276 mutex_unlock(&fe
->card
->mutex
);
280 static int soc_compr_trigger(struct snd_compr_stream
*cstream
, int cmd
)
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
;
288 mutex_lock_nested(&rtd
->pcm_mutex
, rtd
->pcm_subclass
);
290 if (platform
->driver
->compr_ops
&& platform
->driver
->compr_ops
->trigger
) {
291 ret
= platform
->driver
->compr_ops
->trigger(cstream
, cmd
);
297 case SNDRV_PCM_TRIGGER_START
:
298 snd_soc_dai_digital_mute(codec_dai
, 0, cstream
->direction
);
300 case SNDRV_PCM_TRIGGER_STOP
:
301 snd_soc_dai_digital_mute(codec_dai
, 1, cstream
->direction
);
306 mutex_unlock(&rtd
->pcm_mutex
);
310 static int soc_compr_trigger_fe(struct snd_compr_stream
*cstream
, int cmd
)
312 struct snd_soc_pcm_runtime
*fe
= cstream
->private_data
;
313 struct snd_soc_platform
*platform
= fe
->platform
;
316 if (cmd
== SND_COMPR_TRIGGER_PARTIAL_DRAIN
||
317 cmd
== SND_COMPR_TRIGGER_DRAIN
) {
319 if (platform
->driver
->compr_ops
&&
320 platform
->driver
->compr_ops
->trigger
)
321 return platform
->driver
->compr_ops
->trigger(cstream
, cmd
);
324 if (cstream
->direction
== SND_COMPRESS_PLAYBACK
)
325 stream
= SNDRV_PCM_STREAM_PLAYBACK
;
327 stream
= SNDRV_PCM_STREAM_CAPTURE
;
330 mutex_lock_nested(&fe
->card
->mutex
, SND_SOC_CARD_CLASS_RUNTIME
);
332 if (platform
->driver
->compr_ops
&& platform
->driver
->compr_ops
->trigger
) {
333 ret
= platform
->driver
->compr_ops
->trigger(cstream
, cmd
);
338 fe
->dpcm
[stream
].runtime_update
= SND_SOC_DPCM_UPDATE_FE
;
340 ret
= dpcm_be_dai_trigger(fe
, stream
, 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
;
348 case SNDRV_PCM_TRIGGER_STOP
:
349 case SNDRV_PCM_TRIGGER_SUSPEND
:
350 fe
->dpcm
[stream
].state
= SND_SOC_DPCM_STATE_STOP
;
352 case SNDRV_PCM_TRIGGER_PAUSE_PUSH
:
353 fe
->dpcm
[stream
].state
= SND_SOC_DPCM_STATE_PAUSED
;
358 fe
->dpcm
[stream
].runtime_update
= SND_SOC_DPCM_UPDATE_NO
;
359 mutex_unlock(&fe
->card
->mutex
);
363 static int soc_compr_set_params(struct snd_compr_stream
*cstream
,
364 struct snd_compr_params
*params
)
366 struct snd_soc_pcm_runtime
*rtd
= cstream
->private_data
;
367 struct snd_soc_platform
*platform
= rtd
->platform
;
370 mutex_lock_nested(&rtd
->pcm_mutex
, rtd
->pcm_subclass
);
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
378 if (platform
->driver
->compr_ops
&& platform
->driver
->compr_ops
->set_params
) {
379 ret
= platform
->driver
->compr_ops
->set_params(cstream
, params
);
384 if (rtd
->dai_link
->compr_ops
&& rtd
->dai_link
->compr_ops
->set_params
) {
385 ret
= rtd
->dai_link
->compr_ops
->set_params(cstream
);
390 if (cstream
->direction
== SND_COMPRESS_PLAYBACK
)
391 snd_soc_dapm_stream_event(rtd
, SNDRV_PCM_STREAM_PLAYBACK
,
392 SND_SOC_DAPM_STREAM_START
);
394 snd_soc_dapm_stream_event(rtd
, SNDRV_PCM_STREAM_CAPTURE
,
395 SND_SOC_DAPM_STREAM_START
);
397 /* cancel any delayed stream shutdown that is pending */
399 mutex_unlock(&rtd
->pcm_mutex
);
401 cancel_delayed_work_sync(&rtd
->delayed_work
);
406 mutex_unlock(&rtd
->pcm_mutex
);
410 static int soc_compr_set_params_fe(struct snd_compr_stream
*cstream
,
411 struct snd_compr_params
*params
)
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
;
418 if (cstream
->direction
== SND_COMPRESS_PLAYBACK
)
419 stream
= SNDRV_PCM_STREAM_PLAYBACK
;
421 stream
= SNDRV_PCM_STREAM_CAPTURE
;
423 mutex_lock_nested(&fe
->card
->mutex
, SND_SOC_CARD_CLASS_RUNTIME
);
425 if (platform
->driver
->compr_ops
&& platform
->driver
->compr_ops
->set_params
) {
426 ret
= platform
->driver
->compr_ops
->set_params(cstream
, params
);
431 if (fe
->dai_link
->compr_ops
&& fe
->dai_link
->compr_ops
->set_params
) {
432 ret
= fe
->dai_link
->compr_ops
->set_params(cstream
);
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.
442 memset(&fe
->dpcm
[fe_substream
->stream
].hw_params
, 0,
443 sizeof(struct snd_pcm_hw_params
));
445 fe
->dpcm
[stream
].runtime_update
= SND_SOC_DPCM_UPDATE_FE
;
447 ret
= dpcm_be_dai_hw_params(fe
, stream
);
451 ret
= dpcm_be_dai_prepare(fe
, stream
);
455 if (stream
== SNDRV_PCM_STREAM_PLAYBACK
)
456 dpcm_dapm_stream_event(fe
, stream
, SND_SOC_DAPM_STREAM_START
);
458 dpcm_dapm_stream_event(fe
, stream
, SND_SOC_DAPM_STREAM_START
);
460 fe
->dpcm
[stream
].state
= SND_SOC_DPCM_STATE_PREPARE
;
463 fe
->dpcm
[stream
].runtime_update
= SND_SOC_DPCM_UPDATE_NO
;
464 mutex_unlock(&fe
->card
->mutex
);
468 static int soc_compr_get_params(struct snd_compr_stream
*cstream
,
469 struct snd_codec
*params
)
471 struct snd_soc_pcm_runtime
*rtd
= cstream
->private_data
;
472 struct snd_soc_platform
*platform
= rtd
->platform
;
475 mutex_lock_nested(&rtd
->pcm_mutex
, rtd
->pcm_subclass
);
477 if (platform
->driver
->compr_ops
&& platform
->driver
->compr_ops
->get_params
)
478 ret
= platform
->driver
->compr_ops
->get_params(cstream
, params
);
480 mutex_unlock(&rtd
->pcm_mutex
);
484 static int soc_compr_get_caps(struct snd_compr_stream
*cstream
,
485 struct snd_compr_caps
*caps
)
487 struct snd_soc_pcm_runtime
*rtd
= cstream
->private_data
;
488 struct snd_soc_platform
*platform
= rtd
->platform
;
491 mutex_lock_nested(&rtd
->pcm_mutex
, rtd
->pcm_subclass
);
493 if (platform
->driver
->compr_ops
&& platform
->driver
->compr_ops
->get_caps
)
494 ret
= platform
->driver
->compr_ops
->get_caps(cstream
, caps
);
496 mutex_unlock(&rtd
->pcm_mutex
);
500 static int soc_compr_get_codec_caps(struct snd_compr_stream
*cstream
,
501 struct snd_compr_codec_caps
*codec
)
503 struct snd_soc_pcm_runtime
*rtd
= cstream
->private_data
;
504 struct snd_soc_platform
*platform
= rtd
->platform
;
507 mutex_lock_nested(&rtd
->pcm_mutex
, rtd
->pcm_subclass
);
509 if (platform
->driver
->compr_ops
&& platform
->driver
->compr_ops
->get_codec_caps
)
510 ret
= platform
->driver
->compr_ops
->get_codec_caps(cstream
, codec
);
512 mutex_unlock(&rtd
->pcm_mutex
);
516 static int soc_compr_ack(struct snd_compr_stream
*cstream
, size_t bytes
)
518 struct snd_soc_pcm_runtime
*rtd
= cstream
->private_data
;
519 struct snd_soc_platform
*platform
= rtd
->platform
;
522 mutex_lock_nested(&rtd
->pcm_mutex
, rtd
->pcm_subclass
);
524 if (platform
->driver
->compr_ops
&& platform
->driver
->compr_ops
->ack
)
525 ret
= platform
->driver
->compr_ops
->ack(cstream
, bytes
);
527 mutex_unlock(&rtd
->pcm_mutex
);
531 static int soc_compr_pointer(struct snd_compr_stream
*cstream
,
532 struct snd_compr_tstamp
*tstamp
)
534 struct snd_soc_pcm_runtime
*rtd
= cstream
->private_data
;
535 struct snd_soc_platform
*platform
= rtd
->platform
;
537 mutex_lock_nested(&rtd
->pcm_mutex
, rtd
->pcm_subclass
);
539 if (platform
->driver
->compr_ops
&& platform
->driver
->compr_ops
->pointer
)
540 platform
->driver
->compr_ops
->pointer(cstream
, tstamp
);
542 mutex_unlock(&rtd
->pcm_mutex
);
546 static int soc_compr_copy(struct snd_compr_stream
*cstream
,
547 char __user
*buf
, size_t count
)
549 struct snd_soc_pcm_runtime
*rtd
= cstream
->private_data
;
550 struct snd_soc_platform
*platform
= rtd
->platform
;
553 mutex_lock_nested(&rtd
->pcm_mutex
, rtd
->pcm_subclass
);
555 if (platform
->driver
->compr_ops
&& platform
->driver
->compr_ops
->copy
)
556 ret
= platform
->driver
->compr_ops
->copy(cstream
, buf
, count
);
558 mutex_unlock(&rtd
->pcm_mutex
);
562 static int soc_compr_set_metadata(struct snd_compr_stream
*cstream
,
563 struct snd_compr_metadata
*metadata
)
565 struct snd_soc_pcm_runtime
*rtd
= cstream
->private_data
;
566 struct snd_soc_platform
*platform
= rtd
->platform
;
569 if (platform
->driver
->compr_ops
&& platform
->driver
->compr_ops
->set_metadata
)
570 ret
= platform
->driver
->compr_ops
->set_metadata(cstream
, metadata
);
575 static int soc_compr_get_metadata(struct snd_compr_stream
*cstream
,
576 struct snd_compr_metadata
*metadata
)
578 struct snd_soc_pcm_runtime
*rtd
= cstream
->private_data
;
579 struct snd_soc_platform
*platform
= rtd
->platform
;
582 if (platform
->driver
->compr_ops
&& platform
->driver
->compr_ops
->get_metadata
)
583 ret
= platform
->driver
->compr_ops
->get_metadata(cstream
, metadata
);
588 /* ASoC Compress operations */
589 static struct snd_compr_ops soc_compr_ops
= {
590 .open
= soc_compr_open
,
591 .free
= soc_compr_free
,
592 .set_params
= soc_compr_set_params
,
593 .set_metadata
= soc_compr_set_metadata
,
594 .get_metadata
= soc_compr_get_metadata
,
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
603 /* ASoC Dynamic Compress operations */
604 static 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
618 /* create a new compress */
619 int soc_new_compress(struct snd_soc_pcm_runtime
*rtd
, int num
)
621 struct snd_soc_codec
*codec
= rtd
->codec
;
622 struct snd_soc_platform
*platform
= rtd
->platform
;
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
;
626 struct snd_pcm
*be_pcm
;
628 int ret
= 0, direction
= 0;
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
);
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
;
641 compr
= kzalloc(sizeof(*compr
), GFP_KERNEL
);
643 snd_printk(KERN_ERR
"Cannot allocate compr\n");
647 compr
->ops
= devm_kzalloc(rtd
->card
->dev
, sizeof(soc_compr_ops
),
649 if (compr
->ops
== NULL
) {
650 dev_err(rtd
->card
->dev
, "Cannot allocate compressed ops\n");
655 if (rtd
->dai_link
->dynamic
) {
656 snprintf(new_name
, sizeof(new_name
), "(%s)",
657 rtd
->dai_link
->stream_name
);
659 ret
= snd_pcm_new_internal(rtd
->card
->snd_card
, new_name
, num
,
662 dev_err(rtd
->card
->dev
, "ASoC: can't create compressed for %s\n",
663 rtd
->dai_link
->name
);
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
));
673 memcpy(compr
->ops
, &soc_compr_ops
, sizeof(soc_compr_ops
));
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
;
679 mutex_init(&compr
->lock
);
680 ret
= snd_compress_new(rtd
->card
->snd_card
, num
, direction
, compr
);
682 pr_err("compress asoc: can't create compress for codec %s\n",
687 /* DAPM dai link stream work */
688 INIT_DELAYED_WORK(&rtd
->delayed_work
, close_delayed_work
);
691 compr
->private_data
= rtd
;
693 printk(KERN_INFO
"compress asoc: %s <-> %s mapping ok\n", codec_dai
->name
,