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Commit | Line | Data |
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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 | |
29 | static 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) { | |
f4333203 LPC |
40 | pr_err("compress asoc: can't open platform %s\n", |
41 | platform->component.name); | |
1245b700 NK |
42 | goto out; |
43 | } | |
44 | } | |
45 | ||
46 | if (rtd->dai_link->compr_ops && rtd->dai_link->compr_ops->startup) { | |
47 | ret = rtd->dai_link->compr_ops->startup(cstream); | |
48 | if (ret < 0) { | |
49 | pr_err("compress asoc: %s startup failed\n", rtd->dai_link->name); | |
50 | goto machine_err; | |
51 | } | |
52 | } | |
53 | ||
24894b76 | 54 | snd_soc_runtime_activate(rtd, cstream->direction); |
1245b700 | 55 | |
15e2e619 CK |
56 | mutex_unlock(&rtd->pcm_mutex); |
57 | ||
1245b700 NK |
58 | return 0; |
59 | ||
60 | machine_err: | |
61 | if (platform->driver->compr_ops && platform->driver->compr_ops->free) | |
62 | platform->driver->compr_ops->free(cstream); | |
63 | out: | |
15e2e619 | 64 | mutex_unlock(&rtd->pcm_mutex); |
1245b700 NK |
65 | return ret; |
66 | } | |
67 | ||
2a99ef0f LG |
68 | static int soc_compr_open_fe(struct snd_compr_stream *cstream) |
69 | { | |
70 | struct snd_soc_pcm_runtime *fe = cstream->private_data; | |
71 | struct snd_pcm_substream *fe_substream = fe->pcm->streams[0].substream; | |
72 | struct snd_soc_platform *platform = fe->platform; | |
2a99ef0f LG |
73 | struct snd_soc_dpcm *dpcm; |
74 | struct snd_soc_dapm_widget_list *list; | |
75 | int stream; | |
76 | int ret = 0; | |
77 | ||
78 | if (cstream->direction == SND_COMPRESS_PLAYBACK) | |
79 | stream = SNDRV_PCM_STREAM_PLAYBACK; | |
80 | else | |
81 | stream = SNDRV_PCM_STREAM_CAPTURE; | |
82 | ||
83 | mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME); | |
84 | ||
85 | if (platform->driver->compr_ops && platform->driver->compr_ops->open) { | |
86 | ret = platform->driver->compr_ops->open(cstream); | |
87 | if (ret < 0) { | |
f4333203 LPC |
88 | pr_err("compress asoc: can't open platform %s\n", |
89 | platform->component.name); | |
2a99ef0f LG |
90 | goto out; |
91 | } | |
92 | } | |
93 | ||
94 | if (fe->dai_link->compr_ops && fe->dai_link->compr_ops->startup) { | |
95 | ret = fe->dai_link->compr_ops->startup(cstream); | |
96 | if (ret < 0) { | |
97 | pr_err("compress asoc: %s startup failed\n", fe->dai_link->name); | |
98 | goto machine_err; | |
99 | } | |
100 | } | |
101 | ||
102 | fe->dpcm[stream].runtime = fe_substream->runtime; | |
103 | ||
104 | if (dpcm_path_get(fe, stream, &list) <= 0) { | |
105 | dev_dbg(fe->dev, "ASoC: %s no valid %s route\n", | |
106 | fe->dai_link->name, stream ? "capture" : "playback"); | |
107 | } | |
108 | ||
109 | /* calculate valid and active FE <-> BE dpcms */ | |
110 | dpcm_process_paths(fe, stream, &list, 1); | |
111 | ||
112 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_FE; | |
113 | ||
114 | ret = dpcm_be_dai_startup(fe, stream); | |
115 | if (ret < 0) { | |
116 | /* clean up all links */ | |
117 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) | |
118 | dpcm->state = SND_SOC_DPCM_LINK_STATE_FREE; | |
119 | ||
120 | dpcm_be_disconnect(fe, stream); | |
121 | fe->dpcm[stream].runtime = NULL; | |
122 | goto fe_err; | |
123 | } | |
124 | ||
125 | dpcm_clear_pending_state(fe, stream); | |
126 | dpcm_path_put(&list); | |
127 | ||
128 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_OPEN; | |
129 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO; | |
130 | ||
24894b76 | 131 | snd_soc_runtime_activate(fe, stream); |
2a99ef0f LG |
132 | |
133 | mutex_unlock(&fe->card->mutex); | |
134 | ||
135 | return 0; | |
136 | ||
137 | fe_err: | |
138 | if (fe->dai_link->compr_ops && fe->dai_link->compr_ops->shutdown) | |
139 | fe->dai_link->compr_ops->shutdown(cstream); | |
140 | machine_err: | |
141 | if (platform->driver->compr_ops && platform->driver->compr_ops->free) | |
142 | platform->driver->compr_ops->free(cstream); | |
143 | out: | |
144 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO; | |
145 | mutex_unlock(&fe->card->mutex); | |
146 | return ret; | |
147 | } | |
148 | ||
202c8f70 CK |
149 | /* |
150 | * Power down the audio subsystem pmdown_time msecs after close is called. | |
151 | * This is to ensure there are no pops or clicks in between any music tracks | |
152 | * due to DAPM power cycling. | |
153 | */ | |
154 | static void close_delayed_work(struct work_struct *work) | |
155 | { | |
156 | struct snd_soc_pcm_runtime *rtd = | |
157 | container_of(work, struct snd_soc_pcm_runtime, delayed_work.work); | |
158 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
159 | ||
160 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); | |
161 | ||
162 | dev_dbg(rtd->dev, "ASoC: pop wq checking: %s status: %s waiting: %s\n", | |
163 | codec_dai->driver->playback.stream_name, | |
164 | codec_dai->playback_active ? "active" : "inactive", | |
165 | rtd->pop_wait ? "yes" : "no"); | |
166 | ||
167 | /* are we waiting on this codec DAI stream */ | |
168 | if (rtd->pop_wait == 1) { | |
169 | rtd->pop_wait = 0; | |
170 | snd_soc_dapm_stream_event(rtd, SNDRV_PCM_STREAM_PLAYBACK, | |
171 | SND_SOC_DAPM_STREAM_STOP); | |
172 | } | |
173 | ||
174 | mutex_unlock(&rtd->pcm_mutex); | |
175 | } | |
176 | ||
1245b700 NK |
177 | static int soc_compr_free(struct snd_compr_stream *cstream) |
178 | { | |
179 | struct snd_soc_pcm_runtime *rtd = cstream->private_data; | |
180 | struct snd_soc_platform *platform = rtd->platform; | |
181 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
182 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
24894b76 | 183 | int stream; |
1245b700 | 184 | |
15e2e619 CK |
185 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); |
186 | ||
24894b76 LPC |
187 | if (cstream->direction == SND_COMPRESS_PLAYBACK) |
188 | stream = SNDRV_PCM_STREAM_PLAYBACK; | |
189 | else | |
190 | stream = SNDRV_PCM_STREAM_CAPTURE; | |
1245b700 | 191 | |
24894b76 | 192 | snd_soc_runtime_deactivate(rtd, stream); |
da18396f | 193 | |
24894b76 | 194 | snd_soc_dai_digital_mute(codec_dai, 1, cstream->direction); |
1245b700 NK |
195 | |
196 | if (!cpu_dai->active) | |
197 | cpu_dai->rate = 0; | |
198 | ||
199 | if (!codec_dai->active) | |
200 | codec_dai->rate = 0; | |
201 | ||
202 | ||
203 | if (rtd->dai_link->compr_ops && rtd->dai_link->compr_ops->shutdown) | |
204 | rtd->dai_link->compr_ops->shutdown(cstream); | |
205 | ||
206 | if (platform->driver->compr_ops && platform->driver->compr_ops->free) | |
207 | platform->driver->compr_ops->free(cstream); | |
1245b700 NK |
208 | |
209 | if (cstream->direction == SND_COMPRESS_PLAYBACK) { | |
208a1589 | 210 | if (snd_soc_runtime_ignore_pmdown_time(rtd)) { |
1245b700 NK |
211 | snd_soc_dapm_stream_event(rtd, |
212 | SNDRV_PCM_STREAM_PLAYBACK, | |
213 | SND_SOC_DAPM_STREAM_STOP); | |
8c3d2aa4 | 214 | } else { |
9bffb1fb | 215 | rtd->pop_wait = 1; |
3d24cfe4 MB |
216 | queue_delayed_work(system_power_efficient_wq, |
217 | &rtd->delayed_work, | |
218 | msecs_to_jiffies(rtd->pmdown_time)); | |
8c3d2aa4 | 219 | } |
1245b700 NK |
220 | } else { |
221 | /* capture streams can be powered down now */ | |
222 | snd_soc_dapm_stream_event(rtd, | |
223 | SNDRV_PCM_STREAM_CAPTURE, | |
224 | SND_SOC_DAPM_STREAM_STOP); | |
225 | } | |
226 | ||
15e2e619 | 227 | mutex_unlock(&rtd->pcm_mutex); |
1245b700 NK |
228 | return 0; |
229 | } | |
230 | ||
2a99ef0f LG |
231 | static int soc_compr_free_fe(struct snd_compr_stream *cstream) |
232 | { | |
233 | struct snd_soc_pcm_runtime *fe = cstream->private_data; | |
234 | struct snd_soc_platform *platform = fe->platform; | |
2a99ef0f LG |
235 | struct snd_soc_dpcm *dpcm; |
236 | int stream, ret; | |
237 | ||
238 | mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME); | |
239 | ||
24894b76 | 240 | if (cstream->direction == SND_COMPRESS_PLAYBACK) |
2a99ef0f | 241 | stream = SNDRV_PCM_STREAM_PLAYBACK; |
24894b76 | 242 | else |
2a99ef0f | 243 | stream = SNDRV_PCM_STREAM_CAPTURE; |
2a99ef0f | 244 | |
24894b76 | 245 | snd_soc_runtime_deactivate(fe, stream); |
2a99ef0f LG |
246 | |
247 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_FE; | |
248 | ||
249 | ret = dpcm_be_dai_hw_free(fe, stream); | |
250 | if (ret < 0) | |
251 | dev_err(fe->dev, "compressed hw_free failed %d\n", ret); | |
252 | ||
253 | ret = dpcm_be_dai_shutdown(fe, stream); | |
254 | ||
255 | /* mark FE's links ready to prune */ | |
256 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) | |
257 | dpcm->state = SND_SOC_DPCM_LINK_STATE_FREE; | |
258 | ||
259 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) | |
260 | dpcm_dapm_stream_event(fe, stream, SND_SOC_DAPM_STREAM_STOP); | |
261 | else | |
262 | dpcm_dapm_stream_event(fe, stream, SND_SOC_DAPM_STREAM_STOP); | |
263 | ||
264 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_CLOSE; | |
265 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO; | |
266 | ||
267 | dpcm_be_disconnect(fe, stream); | |
268 | ||
269 | fe->dpcm[stream].runtime = NULL; | |
270 | ||
271 | if (fe->dai_link->compr_ops && fe->dai_link->compr_ops->shutdown) | |
272 | fe->dai_link->compr_ops->shutdown(cstream); | |
273 | ||
274 | if (platform->driver->compr_ops && platform->driver->compr_ops->free) | |
275 | platform->driver->compr_ops->free(cstream); | |
276 | ||
277 | mutex_unlock(&fe->card->mutex); | |
278 | return 0; | |
279 | } | |
280 | ||
1245b700 NK |
281 | static int soc_compr_trigger(struct snd_compr_stream *cstream, int cmd) |
282 | { | |
283 | ||
284 | struct snd_soc_pcm_runtime *rtd = cstream->private_data; | |
285 | struct snd_soc_platform *platform = rtd->platform; | |
286 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
287 | int ret = 0; | |
288 | ||
15e2e619 CK |
289 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); |
290 | ||
1245b700 NK |
291 | if (platform->driver->compr_ops && platform->driver->compr_ops->trigger) { |
292 | ret = platform->driver->compr_ops->trigger(cstream, cmd); | |
293 | if (ret < 0) | |
15e2e619 | 294 | goto out; |
1245b700 NK |
295 | } |
296 | ||
da18396f MB |
297 | switch (cmd) { |
298 | case SNDRV_PCM_TRIGGER_START: | |
299 | snd_soc_dai_digital_mute(codec_dai, 0, cstream->direction); | |
300 | break; | |
301 | case SNDRV_PCM_TRIGGER_STOP: | |
302 | snd_soc_dai_digital_mute(codec_dai, 1, cstream->direction); | |
303 | break; | |
e38b9b74 | 304 | } |
1245b700 | 305 | |
15e2e619 CK |
306 | out: |
307 | mutex_unlock(&rtd->pcm_mutex); | |
1245b700 NK |
308 | return ret; |
309 | } | |
310 | ||
2a99ef0f LG |
311 | static int soc_compr_trigger_fe(struct snd_compr_stream *cstream, int cmd) |
312 | { | |
313 | struct snd_soc_pcm_runtime *fe = cstream->private_data; | |
314 | struct snd_soc_platform *platform = fe->platform; | |
315 | int ret = 0, stream; | |
316 | ||
317 | if (cmd == SND_COMPR_TRIGGER_PARTIAL_DRAIN || | |
318 | cmd == SND_COMPR_TRIGGER_DRAIN) { | |
319 | ||
320 | if (platform->driver->compr_ops && | |
15b8e94f DC |
321 | platform->driver->compr_ops->trigger) |
322 | return platform->driver->compr_ops->trigger(cstream, | |
323 | cmd); | |
2a99ef0f LG |
324 | } |
325 | ||
326 | if (cstream->direction == SND_COMPRESS_PLAYBACK) | |
327 | stream = SNDRV_PCM_STREAM_PLAYBACK; | |
328 | else | |
329 | stream = SNDRV_PCM_STREAM_CAPTURE; | |
330 | ||
331 | ||
332 | mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME); | |
333 | ||
334 | if (platform->driver->compr_ops && platform->driver->compr_ops->trigger) { | |
335 | ret = platform->driver->compr_ops->trigger(cstream, cmd); | |
336 | if (ret < 0) | |
337 | goto out; | |
338 | } | |
339 | ||
340 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_FE; | |
341 | ||
342 | ret = dpcm_be_dai_trigger(fe, stream, cmd); | |
343 | ||
344 | switch (cmd) { | |
345 | case SNDRV_PCM_TRIGGER_START: | |
346 | case SNDRV_PCM_TRIGGER_RESUME: | |
347 | case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: | |
348 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_START; | |
349 | break; | |
350 | case SNDRV_PCM_TRIGGER_STOP: | |
351 | case SNDRV_PCM_TRIGGER_SUSPEND: | |
352 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_STOP; | |
353 | break; | |
354 | case SNDRV_PCM_TRIGGER_PAUSE_PUSH: | |
355 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_PAUSED; | |
356 | break; | |
357 | } | |
358 | ||
359 | out: | |
360 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO; | |
361 | mutex_unlock(&fe->card->mutex); | |
362 | return ret; | |
363 | } | |
364 | ||
1245b700 NK |
365 | static int soc_compr_set_params(struct snd_compr_stream *cstream, |
366 | struct snd_compr_params *params) | |
367 | { | |
368 | struct snd_soc_pcm_runtime *rtd = cstream->private_data; | |
369 | struct snd_soc_platform *platform = rtd->platform; | |
1245b700 NK |
370 | int ret = 0; |
371 | ||
15e2e619 CK |
372 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); |
373 | ||
1245b700 NK |
374 | /* first we call set_params for the platform driver |
375 | * this should configure the soc side | |
376 | * if the machine has compressed ops then we call that as well | |
377 | * expectation is that platform and machine will configure everything | |
378 | * for this compress path, like configuring pcm port for codec | |
379 | */ | |
380 | if (platform->driver->compr_ops && platform->driver->compr_ops->set_params) { | |
381 | ret = platform->driver->compr_ops->set_params(cstream, params); | |
382 | if (ret < 0) | |
fa40ef20 | 383 | goto err; |
1245b700 NK |
384 | } |
385 | ||
386 | if (rtd->dai_link->compr_ops && rtd->dai_link->compr_ops->set_params) { | |
387 | ret = rtd->dai_link->compr_ops->set_params(cstream); | |
388 | if (ret < 0) | |
fa40ef20 | 389 | goto err; |
1245b700 NK |
390 | } |
391 | ||
2c071ed7 CK |
392 | if (cstream->direction == SND_COMPRESS_PLAYBACK) |
393 | snd_soc_dapm_stream_event(rtd, SNDRV_PCM_STREAM_PLAYBACK, | |
394 | SND_SOC_DAPM_STREAM_START); | |
395 | else | |
396 | snd_soc_dapm_stream_event(rtd, SNDRV_PCM_STREAM_CAPTURE, | |
397 | SND_SOC_DAPM_STREAM_START); | |
1245b700 | 398 | |
fa40ef20 CK |
399 | /* cancel any delayed stream shutdown that is pending */ |
400 | rtd->pop_wait = 0; | |
401 | mutex_unlock(&rtd->pcm_mutex); | |
402 | ||
403 | cancel_delayed_work_sync(&rtd->delayed_work); | |
404 | ||
405 | return ret; | |
406 | ||
407 | err: | |
15e2e619 | 408 | mutex_unlock(&rtd->pcm_mutex); |
1245b700 NK |
409 | return ret; |
410 | } | |
411 | ||
2a99ef0f LG |
412 | static int soc_compr_set_params_fe(struct snd_compr_stream *cstream, |
413 | struct snd_compr_params *params) | |
414 | { | |
415 | struct snd_soc_pcm_runtime *fe = cstream->private_data; | |
416 | struct snd_pcm_substream *fe_substream = fe->pcm->streams[0].substream; | |
417 | struct snd_soc_platform *platform = fe->platform; | |
418 | int ret = 0, stream; | |
419 | ||
420 | if (cstream->direction == SND_COMPRESS_PLAYBACK) | |
421 | stream = SNDRV_PCM_STREAM_PLAYBACK; | |
422 | else | |
423 | stream = SNDRV_PCM_STREAM_CAPTURE; | |
424 | ||
425 | mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME); | |
426 | ||
427 | if (platform->driver->compr_ops && platform->driver->compr_ops->set_params) { | |
428 | ret = platform->driver->compr_ops->set_params(cstream, params); | |
429 | if (ret < 0) | |
430 | goto out; | |
431 | } | |
432 | ||
433 | if (fe->dai_link->compr_ops && fe->dai_link->compr_ops->set_params) { | |
434 | ret = fe->dai_link->compr_ops->set_params(cstream); | |
435 | if (ret < 0) | |
436 | goto out; | |
437 | } | |
438 | ||
439 | /* | |
440 | * Create an empty hw_params for the BE as the machine driver must | |
441 | * fix this up to match DSP decoder and ASRC configuration. | |
442 | * I.e. machine driver fixup for compressed BE is mandatory. | |
443 | */ | |
444 | memset(&fe->dpcm[fe_substream->stream].hw_params, 0, | |
445 | sizeof(struct snd_pcm_hw_params)); | |
446 | ||
447 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_FE; | |
448 | ||
449 | ret = dpcm_be_dai_hw_params(fe, stream); | |
450 | if (ret < 0) | |
451 | goto out; | |
452 | ||
453 | ret = dpcm_be_dai_prepare(fe, stream); | |
454 | if (ret < 0) | |
455 | goto out; | |
456 | ||
457 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) | |
458 | dpcm_dapm_stream_event(fe, stream, SND_SOC_DAPM_STREAM_START); | |
459 | else | |
460 | dpcm_dapm_stream_event(fe, stream, SND_SOC_DAPM_STREAM_START); | |
461 | ||
462 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_PREPARE; | |
463 | ||
464 | out: | |
465 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO; | |
466 | mutex_unlock(&fe->card->mutex); | |
467 | return ret; | |
468 | } | |
469 | ||
1245b700 NK |
470 | static int soc_compr_get_params(struct snd_compr_stream *cstream, |
471 | struct snd_codec *params) | |
472 | { | |
473 | struct snd_soc_pcm_runtime *rtd = cstream->private_data; | |
474 | struct snd_soc_platform *platform = rtd->platform; | |
475 | int ret = 0; | |
476 | ||
15e2e619 CK |
477 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); |
478 | ||
1245b700 NK |
479 | if (platform->driver->compr_ops && platform->driver->compr_ops->get_params) |
480 | ret = platform->driver->compr_ops->get_params(cstream, params); | |
481 | ||
15e2e619 | 482 | mutex_unlock(&rtd->pcm_mutex); |
1245b700 NK |
483 | return ret; |
484 | } | |
485 | ||
486 | static int soc_compr_get_caps(struct snd_compr_stream *cstream, | |
487 | struct snd_compr_caps *caps) | |
488 | { | |
489 | struct snd_soc_pcm_runtime *rtd = cstream->private_data; | |
490 | struct snd_soc_platform *platform = rtd->platform; | |
491 | int ret = 0; | |
492 | ||
15e2e619 CK |
493 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); |
494 | ||
1245b700 NK |
495 | if (platform->driver->compr_ops && platform->driver->compr_ops->get_caps) |
496 | ret = platform->driver->compr_ops->get_caps(cstream, caps); | |
497 | ||
15e2e619 | 498 | mutex_unlock(&rtd->pcm_mutex); |
1245b700 NK |
499 | return ret; |
500 | } | |
501 | ||
502 | static int soc_compr_get_codec_caps(struct snd_compr_stream *cstream, | |
503 | struct snd_compr_codec_caps *codec) | |
504 | { | |
505 | struct snd_soc_pcm_runtime *rtd = cstream->private_data; | |
506 | struct snd_soc_platform *platform = rtd->platform; | |
507 | int ret = 0; | |
508 | ||
15e2e619 CK |
509 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); |
510 | ||
1245b700 NK |
511 | if (platform->driver->compr_ops && platform->driver->compr_ops->get_codec_caps) |
512 | ret = platform->driver->compr_ops->get_codec_caps(cstream, codec); | |
513 | ||
15e2e619 | 514 | mutex_unlock(&rtd->pcm_mutex); |
1245b700 NK |
515 | return ret; |
516 | } | |
517 | ||
518 | static int soc_compr_ack(struct snd_compr_stream *cstream, size_t bytes) | |
519 | { | |
520 | struct snd_soc_pcm_runtime *rtd = cstream->private_data; | |
521 | struct snd_soc_platform *platform = rtd->platform; | |
522 | int ret = 0; | |
523 | ||
15e2e619 CK |
524 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); |
525 | ||
1245b700 NK |
526 | if (platform->driver->compr_ops && platform->driver->compr_ops->ack) |
527 | ret = platform->driver->compr_ops->ack(cstream, bytes); | |
528 | ||
15e2e619 | 529 | mutex_unlock(&rtd->pcm_mutex); |
1245b700 NK |
530 | return ret; |
531 | } | |
532 | ||
533 | static int soc_compr_pointer(struct snd_compr_stream *cstream, | |
534 | struct snd_compr_tstamp *tstamp) | |
535 | { | |
536 | struct snd_soc_pcm_runtime *rtd = cstream->private_data; | |
537 | struct snd_soc_platform *platform = rtd->platform; | |
538 | ||
15e2e619 CK |
539 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); |
540 | ||
1245b700 NK |
541 | if (platform->driver->compr_ops && platform->driver->compr_ops->pointer) |
542 | platform->driver->compr_ops->pointer(cstream, tstamp); | |
543 | ||
15e2e619 | 544 | mutex_unlock(&rtd->pcm_mutex); |
1245b700 NK |
545 | return 0; |
546 | } | |
547 | ||
1f88eb0f | 548 | static int soc_compr_copy(struct snd_compr_stream *cstream, |
4daf891c | 549 | char __user *buf, size_t count) |
1f88eb0f CK |
550 | { |
551 | struct snd_soc_pcm_runtime *rtd = cstream->private_data; | |
552 | struct snd_soc_platform *platform = rtd->platform; | |
553 | int ret = 0; | |
554 | ||
555 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); | |
556 | ||
557 | if (platform->driver->compr_ops && platform->driver->compr_ops->copy) | |
558 | ret = platform->driver->compr_ops->copy(cstream, buf, count); | |
559 | ||
560 | mutex_unlock(&rtd->pcm_mutex); | |
561 | return ret; | |
562 | } | |
563 | ||
02bd90e8 | 564 | static int soc_compr_set_metadata(struct snd_compr_stream *cstream, |
36953d98 JK |
565 | struct snd_compr_metadata *metadata) |
566 | { | |
567 | struct snd_soc_pcm_runtime *rtd = cstream->private_data; | |
568 | struct snd_soc_platform *platform = rtd->platform; | |
569 | int ret = 0; | |
570 | ||
571 | if (platform->driver->compr_ops && platform->driver->compr_ops->set_metadata) | |
572 | ret = platform->driver->compr_ops->set_metadata(cstream, metadata); | |
573 | ||
574 | return ret; | |
575 | } | |
576 | ||
02bd90e8 | 577 | static int soc_compr_get_metadata(struct snd_compr_stream *cstream, |
36953d98 JK |
578 | struct snd_compr_metadata *metadata) |
579 | { | |
580 | struct snd_soc_pcm_runtime *rtd = cstream->private_data; | |
581 | struct snd_soc_platform *platform = rtd->platform; | |
582 | int ret = 0; | |
583 | ||
584 | if (platform->driver->compr_ops && platform->driver->compr_ops->get_metadata) | |
585 | ret = platform->driver->compr_ops->get_metadata(cstream, metadata); | |
586 | ||
587 | return ret; | |
588 | } | |
2a99ef0f | 589 | |
1245b700 NK |
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, | |
02bd90e8 VK |
595 | .set_metadata = soc_compr_set_metadata, |
596 | .get_metadata = soc_compr_get_metadata, | |
1245b700 NK |
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 | |
603 | }; | |
604 | ||
2a99ef0f LG |
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 | |
618 | }; | |
619 | ||
1245b700 NK |
620 | /* create a new compress */ |
621 | int soc_new_compress(struct snd_soc_pcm_runtime *rtd, int num) | |
622 | { | |
623 | struct snd_soc_codec *codec = rtd->codec; | |
1f88eb0f | 624 | struct snd_soc_platform *platform = rtd->platform; |
1245b700 NK |
625 | struct snd_soc_dai *codec_dai = rtd->codec_dai; |
626 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
627 | struct snd_compr *compr; | |
2a99ef0f | 628 | struct snd_pcm *be_pcm; |
1245b700 NK |
629 | char new_name[64]; |
630 | int ret = 0, direction = 0; | |
631 | ||
8151d5e6 BC |
632 | if (rtd->num_codecs > 1) { |
633 | dev_err(rtd->card->dev, "Multicodec not supported for compressed stream\n"); | |
634 | return -EINVAL; | |
635 | } | |
636 | ||
1245b700 NK |
637 | /* check client and interface hw capabilities */ |
638 | snprintf(new_name, sizeof(new_name), "%s %s-%d", | |
639 | rtd->dai_link->stream_name, codec_dai->name, num); | |
daa2db59 CK |
640 | |
641 | if (codec_dai->driver->playback.channels_min) | |
642 | direction = SND_COMPRESS_PLAYBACK; | |
643 | else if (codec_dai->driver->capture.channels_min) | |
644 | direction = SND_COMPRESS_CAPTURE; | |
645 | else | |
646 | return -EINVAL; | |
647 | ||
1245b700 NK |
648 | compr = kzalloc(sizeof(*compr), GFP_KERNEL); |
649 | if (compr == NULL) { | |
650 | snd_printk(KERN_ERR "Cannot allocate compr\n"); | |
651 | return -ENOMEM; | |
652 | } | |
653 | ||
1f88eb0f CK |
654 | compr->ops = devm_kzalloc(rtd->card->dev, sizeof(soc_compr_ops), |
655 | GFP_KERNEL); | |
656 | if (compr->ops == NULL) { | |
657 | dev_err(rtd->card->dev, "Cannot allocate compressed ops\n"); | |
658 | ret = -ENOMEM; | |
659 | goto compr_err; | |
660 | } | |
2a99ef0f LG |
661 | |
662 | if (rtd->dai_link->dynamic) { | |
663 | snprintf(new_name, sizeof(new_name), "(%s)", | |
664 | rtd->dai_link->stream_name); | |
665 | ||
666 | ret = snd_pcm_new_internal(rtd->card->snd_card, new_name, num, | |
667 | 1, 0, &be_pcm); | |
668 | if (ret < 0) { | |
669 | dev_err(rtd->card->dev, "ASoC: can't create compressed for %s\n", | |
670 | rtd->dai_link->name); | |
671 | goto compr_err; | |
672 | } | |
673 | ||
674 | rtd->pcm = be_pcm; | |
675 | rtd->fe_compr = 1; | |
676 | be_pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream->private_data = rtd; | |
677 | be_pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream->private_data = rtd; | |
678 | memcpy(compr->ops, &soc_compr_dyn_ops, sizeof(soc_compr_dyn_ops)); | |
679 | } else | |
680 | memcpy(compr->ops, &soc_compr_ops, sizeof(soc_compr_ops)); | |
1f88eb0f CK |
681 | |
682 | /* Add copy callback for not memory mapped DSPs */ | |
683 | if (platform->driver->compr_ops && platform->driver->compr_ops->copy) | |
684 | compr->ops->copy = soc_compr_copy; | |
685 | ||
1245b700 NK |
686 | mutex_init(&compr->lock); |
687 | ret = snd_compress_new(rtd->card->snd_card, num, direction, compr); | |
688 | if (ret < 0) { | |
689 | pr_err("compress asoc: can't create compress for codec %s\n", | |
f4333203 | 690 | codec->component.name); |
1f88eb0f | 691 | goto compr_err; |
1245b700 NK |
692 | } |
693 | ||
202c8f70 CK |
694 | /* DAPM dai link stream work */ |
695 | INIT_DELAYED_WORK(&rtd->delayed_work, close_delayed_work); | |
696 | ||
1245b700 NK |
697 | rtd->compr = compr; |
698 | compr->private_data = rtd; | |
699 | ||
700 | printk(KERN_INFO "compress asoc: %s <-> %s mapping ok\n", codec_dai->name, | |
701 | cpu_dai->name); | |
702 | return ret; | |
1f88eb0f CK |
703 | |
704 | compr_err: | |
705 | kfree(compr); | |
706 | return ret; | |
1245b700 | 707 | } |