Commit | Line | Data |
---|---|---|
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 | ||
8f70e515 | 104 | ret = dpcm_path_get(fe, stream, &list); |
2e4ec1c0 | 105 | if (ret < 0) |
8f70e515 | 106 | goto fe_err; |
2e4ec1c0 | 107 | else if (ret == 0) |
2a99ef0f LG |
108 | dev_dbg(fe->dev, "ASoC: %s no valid %s route\n", |
109 | fe->dai_link->name, stream ? "capture" : "playback"); | |
2a99ef0f LG |
110 | |
111 | /* calculate valid and active FE <-> BE dpcms */ | |
112 | dpcm_process_paths(fe, stream, &list, 1); | |
113 | ||
114 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_FE; | |
115 | ||
116 | ret = dpcm_be_dai_startup(fe, stream); | |
117 | if (ret < 0) { | |
118 | /* clean up all links */ | |
119 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) | |
120 | dpcm->state = SND_SOC_DPCM_LINK_STATE_FREE; | |
121 | ||
122 | dpcm_be_disconnect(fe, stream); | |
123 | fe->dpcm[stream].runtime = NULL; | |
124 | goto fe_err; | |
125 | } | |
126 | ||
127 | dpcm_clear_pending_state(fe, stream); | |
128 | dpcm_path_put(&list); | |
129 | ||
130 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_OPEN; | |
131 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO; | |
132 | ||
24894b76 | 133 | snd_soc_runtime_activate(fe, stream); |
2a99ef0f LG |
134 | |
135 | mutex_unlock(&fe->card->mutex); | |
136 | ||
137 | return 0; | |
138 | ||
139 | fe_err: | |
140 | if (fe->dai_link->compr_ops && fe->dai_link->compr_ops->shutdown) | |
141 | fe->dai_link->compr_ops->shutdown(cstream); | |
142 | machine_err: | |
143 | if (platform->driver->compr_ops && platform->driver->compr_ops->free) | |
144 | platform->driver->compr_ops->free(cstream); | |
145 | out: | |
146 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO; | |
147 | mutex_unlock(&fe->card->mutex); | |
148 | return ret; | |
149 | } | |
150 | ||
202c8f70 CK |
151 | /* |
152 | * Power down the audio subsystem pmdown_time msecs after close is called. | |
153 | * This is to ensure there are no pops or clicks in between any music tracks | |
154 | * due to DAPM power cycling. | |
155 | */ | |
156 | static void close_delayed_work(struct work_struct *work) | |
157 | { | |
158 | struct snd_soc_pcm_runtime *rtd = | |
159 | container_of(work, struct snd_soc_pcm_runtime, delayed_work.work); | |
160 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
161 | ||
162 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); | |
163 | ||
164 | dev_dbg(rtd->dev, "ASoC: pop wq checking: %s status: %s waiting: %s\n", | |
165 | codec_dai->driver->playback.stream_name, | |
166 | codec_dai->playback_active ? "active" : "inactive", | |
167 | rtd->pop_wait ? "yes" : "no"); | |
168 | ||
169 | /* are we waiting on this codec DAI stream */ | |
170 | if (rtd->pop_wait == 1) { | |
171 | rtd->pop_wait = 0; | |
172 | snd_soc_dapm_stream_event(rtd, SNDRV_PCM_STREAM_PLAYBACK, | |
173 | SND_SOC_DAPM_STREAM_STOP); | |
174 | } | |
175 | ||
176 | mutex_unlock(&rtd->pcm_mutex); | |
177 | } | |
178 | ||
1245b700 NK |
179 | static int soc_compr_free(struct snd_compr_stream *cstream) |
180 | { | |
181 | struct snd_soc_pcm_runtime *rtd = cstream->private_data; | |
182 | struct snd_soc_platform *platform = rtd->platform; | |
183 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
184 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
24894b76 | 185 | int stream; |
1245b700 | 186 | |
15e2e619 CK |
187 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); |
188 | ||
24894b76 LPC |
189 | if (cstream->direction == SND_COMPRESS_PLAYBACK) |
190 | stream = SNDRV_PCM_STREAM_PLAYBACK; | |
191 | else | |
192 | stream = SNDRV_PCM_STREAM_CAPTURE; | |
1245b700 | 193 | |
24894b76 | 194 | snd_soc_runtime_deactivate(rtd, stream); |
da18396f | 195 | |
24894b76 | 196 | snd_soc_dai_digital_mute(codec_dai, 1, cstream->direction); |
1245b700 NK |
197 | |
198 | if (!cpu_dai->active) | |
199 | cpu_dai->rate = 0; | |
200 | ||
201 | if (!codec_dai->active) | |
202 | codec_dai->rate = 0; | |
203 | ||
204 | ||
205 | if (rtd->dai_link->compr_ops && rtd->dai_link->compr_ops->shutdown) | |
206 | rtd->dai_link->compr_ops->shutdown(cstream); | |
207 | ||
208 | if (platform->driver->compr_ops && platform->driver->compr_ops->free) | |
209 | platform->driver->compr_ops->free(cstream); | |
1245b700 NK |
210 | |
211 | if (cstream->direction == SND_COMPRESS_PLAYBACK) { | |
208a1589 | 212 | if (snd_soc_runtime_ignore_pmdown_time(rtd)) { |
1245b700 NK |
213 | snd_soc_dapm_stream_event(rtd, |
214 | SNDRV_PCM_STREAM_PLAYBACK, | |
215 | SND_SOC_DAPM_STREAM_STOP); | |
8c3d2aa4 | 216 | } else { |
9bffb1fb | 217 | rtd->pop_wait = 1; |
3d24cfe4 MB |
218 | queue_delayed_work(system_power_efficient_wq, |
219 | &rtd->delayed_work, | |
220 | msecs_to_jiffies(rtd->pmdown_time)); | |
8c3d2aa4 | 221 | } |
1245b700 NK |
222 | } else { |
223 | /* capture streams can be powered down now */ | |
224 | snd_soc_dapm_stream_event(rtd, | |
225 | SNDRV_PCM_STREAM_CAPTURE, | |
226 | SND_SOC_DAPM_STREAM_STOP); | |
227 | } | |
228 | ||
15e2e619 | 229 | mutex_unlock(&rtd->pcm_mutex); |
1245b700 NK |
230 | return 0; |
231 | } | |
232 | ||
2a99ef0f LG |
233 | static int soc_compr_free_fe(struct snd_compr_stream *cstream) |
234 | { | |
235 | struct snd_soc_pcm_runtime *fe = cstream->private_data; | |
236 | struct snd_soc_platform *platform = fe->platform; | |
2a99ef0f LG |
237 | struct snd_soc_dpcm *dpcm; |
238 | int stream, ret; | |
239 | ||
240 | mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME); | |
241 | ||
24894b76 | 242 | if (cstream->direction == SND_COMPRESS_PLAYBACK) |
2a99ef0f | 243 | stream = SNDRV_PCM_STREAM_PLAYBACK; |
24894b76 | 244 | else |
2a99ef0f | 245 | stream = SNDRV_PCM_STREAM_CAPTURE; |
2a99ef0f | 246 | |
24894b76 | 247 | snd_soc_runtime_deactivate(fe, stream); |
2a99ef0f LG |
248 | |
249 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_FE; | |
250 | ||
251 | ret = dpcm_be_dai_hw_free(fe, stream); | |
252 | if (ret < 0) | |
253 | dev_err(fe->dev, "compressed hw_free failed %d\n", ret); | |
254 | ||
255 | ret = dpcm_be_dai_shutdown(fe, stream); | |
256 | ||
257 | /* mark FE's links ready to prune */ | |
258 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) | |
259 | dpcm->state = SND_SOC_DPCM_LINK_STATE_FREE; | |
260 | ||
15f6b09a | 261 | dpcm_dapm_stream_event(fe, stream, SND_SOC_DAPM_STREAM_STOP); |
2a99ef0f LG |
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 |
280 | static 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 |
305 | out: |
306 | mutex_unlock(&rtd->pcm_mutex); | |
1245b700 NK |
307 | return ret; |
308 | } | |
309 | ||
2a99ef0f LG |
310 | static 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 && | |
15b8e94f DC |
320 | platform->driver->compr_ops->trigger) |
321 | return platform->driver->compr_ops->trigger(cstream, | |
322 | cmd); | |
2a99ef0f LG |
323 | } |
324 | ||
325 | if (cstream->direction == SND_COMPRESS_PLAYBACK) | |
326 | stream = SNDRV_PCM_STREAM_PLAYBACK; | |
327 | else | |
328 | stream = SNDRV_PCM_STREAM_CAPTURE; | |
329 | ||
330 | ||
331 | mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME); | |
332 | ||
333 | if (platform->driver->compr_ops && platform->driver->compr_ops->trigger) { | |
334 | ret = platform->driver->compr_ops->trigger(cstream, cmd); | |
335 | if (ret < 0) | |
336 | goto out; | |
337 | } | |
338 | ||
339 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_FE; | |
340 | ||
341 | ret = dpcm_be_dai_trigger(fe, stream, cmd); | |
342 | ||
343 | switch (cmd) { | |
344 | case SNDRV_PCM_TRIGGER_START: | |
345 | case SNDRV_PCM_TRIGGER_RESUME: | |
346 | case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: | |
347 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_START; | |
348 | break; | |
349 | case SNDRV_PCM_TRIGGER_STOP: | |
350 | case SNDRV_PCM_TRIGGER_SUSPEND: | |
351 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_STOP; | |
352 | break; | |
353 | case SNDRV_PCM_TRIGGER_PAUSE_PUSH: | |
354 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_PAUSED; | |
355 | break; | |
356 | } | |
357 | ||
358 | out: | |
359 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO; | |
360 | mutex_unlock(&fe->card->mutex); | |
361 | return ret; | |
362 | } | |
363 | ||
1245b700 NK |
364 | static int soc_compr_set_params(struct snd_compr_stream *cstream, |
365 | struct snd_compr_params *params) | |
366 | { | |
367 | struct snd_soc_pcm_runtime *rtd = cstream->private_data; | |
368 | struct snd_soc_platform *platform = rtd->platform; | |
1245b700 NK |
369 | int ret = 0; |
370 | ||
15e2e619 CK |
371 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); |
372 | ||
1245b700 NK |
373 | /* first we call set_params for the platform driver |
374 | * this should configure the soc side | |
375 | * if the machine has compressed ops then we call that as well | |
376 | * expectation is that platform and machine will configure everything | |
377 | * for this compress path, like configuring pcm port for codec | |
378 | */ | |
379 | if (platform->driver->compr_ops && platform->driver->compr_ops->set_params) { | |
380 | ret = platform->driver->compr_ops->set_params(cstream, params); | |
381 | if (ret < 0) | |
fa40ef20 | 382 | goto err; |
1245b700 NK |
383 | } |
384 | ||
385 | if (rtd->dai_link->compr_ops && rtd->dai_link->compr_ops->set_params) { | |
386 | ret = rtd->dai_link->compr_ops->set_params(cstream); | |
387 | if (ret < 0) | |
fa40ef20 | 388 | goto err; |
1245b700 NK |
389 | } |
390 | ||
2c071ed7 CK |
391 | if (cstream->direction == SND_COMPRESS_PLAYBACK) |
392 | snd_soc_dapm_stream_event(rtd, SNDRV_PCM_STREAM_PLAYBACK, | |
393 | SND_SOC_DAPM_STREAM_START); | |
394 | else | |
395 | snd_soc_dapm_stream_event(rtd, SNDRV_PCM_STREAM_CAPTURE, | |
396 | SND_SOC_DAPM_STREAM_START); | |
1245b700 | 397 | |
fa40ef20 CK |
398 | /* cancel any delayed stream shutdown that is pending */ |
399 | rtd->pop_wait = 0; | |
400 | mutex_unlock(&rtd->pcm_mutex); | |
401 | ||
402 | cancel_delayed_work_sync(&rtd->delayed_work); | |
403 | ||
404 | return ret; | |
405 | ||
406 | err: | |
15e2e619 | 407 | mutex_unlock(&rtd->pcm_mutex); |
1245b700 NK |
408 | return ret; |
409 | } | |
410 | ||
2a99ef0f LG |
411 | static int soc_compr_set_params_fe(struct snd_compr_stream *cstream, |
412 | struct snd_compr_params *params) | |
413 | { | |
414 | struct snd_soc_pcm_runtime *fe = cstream->private_data; | |
415 | struct snd_pcm_substream *fe_substream = fe->pcm->streams[0].substream; | |
416 | struct snd_soc_platform *platform = fe->platform; | |
417 | int ret = 0, stream; | |
418 | ||
419 | if (cstream->direction == SND_COMPRESS_PLAYBACK) | |
420 | stream = SNDRV_PCM_STREAM_PLAYBACK; | |
421 | else | |
422 | stream = SNDRV_PCM_STREAM_CAPTURE; | |
423 | ||
424 | mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME); | |
425 | ||
426 | if (platform->driver->compr_ops && platform->driver->compr_ops->set_params) { | |
427 | ret = platform->driver->compr_ops->set_params(cstream, params); | |
428 | if (ret < 0) | |
429 | goto out; | |
430 | } | |
431 | ||
432 | if (fe->dai_link->compr_ops && fe->dai_link->compr_ops->set_params) { | |
433 | ret = fe->dai_link->compr_ops->set_params(cstream); | |
434 | if (ret < 0) | |
435 | goto out; | |
436 | } | |
437 | ||
438 | /* | |
439 | * Create an empty hw_params for the BE as the machine driver must | |
440 | * fix this up to match DSP decoder and ASRC configuration. | |
441 | * I.e. machine driver fixup for compressed BE is mandatory. | |
442 | */ | |
443 | memset(&fe->dpcm[fe_substream->stream].hw_params, 0, | |
444 | sizeof(struct snd_pcm_hw_params)); | |
445 | ||
446 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_FE; | |
447 | ||
448 | ret = dpcm_be_dai_hw_params(fe, stream); | |
449 | if (ret < 0) | |
450 | goto out; | |
451 | ||
452 | ret = dpcm_be_dai_prepare(fe, stream); | |
453 | if (ret < 0) | |
454 | goto out; | |
455 | ||
15f6b09a | 456 | dpcm_dapm_stream_event(fe, stream, SND_SOC_DAPM_STREAM_START); |
2a99ef0f LG |
457 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_PREPARE; |
458 | ||
459 | out: | |
460 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO; | |
461 | mutex_unlock(&fe->card->mutex); | |
462 | return ret; | |
463 | } | |
464 | ||
1245b700 NK |
465 | static int soc_compr_get_params(struct snd_compr_stream *cstream, |
466 | struct snd_codec *params) | |
467 | { | |
468 | struct snd_soc_pcm_runtime *rtd = cstream->private_data; | |
469 | struct snd_soc_platform *platform = rtd->platform; | |
470 | int ret = 0; | |
471 | ||
15e2e619 CK |
472 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); |
473 | ||
1245b700 NK |
474 | if (platform->driver->compr_ops && platform->driver->compr_ops->get_params) |
475 | ret = platform->driver->compr_ops->get_params(cstream, params); | |
476 | ||
15e2e619 | 477 | mutex_unlock(&rtd->pcm_mutex); |
1245b700 NK |
478 | return ret; |
479 | } | |
480 | ||
481 | static int soc_compr_get_caps(struct snd_compr_stream *cstream, | |
482 | struct snd_compr_caps *caps) | |
483 | { | |
484 | struct snd_soc_pcm_runtime *rtd = cstream->private_data; | |
485 | struct snd_soc_platform *platform = rtd->platform; | |
486 | int ret = 0; | |
487 | ||
15e2e619 CK |
488 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); |
489 | ||
1245b700 NK |
490 | if (platform->driver->compr_ops && platform->driver->compr_ops->get_caps) |
491 | ret = platform->driver->compr_ops->get_caps(cstream, caps); | |
492 | ||
15e2e619 | 493 | mutex_unlock(&rtd->pcm_mutex); |
1245b700 NK |
494 | return ret; |
495 | } | |
496 | ||
497 | static int soc_compr_get_codec_caps(struct snd_compr_stream *cstream, | |
498 | struct snd_compr_codec_caps *codec) | |
499 | { | |
500 | struct snd_soc_pcm_runtime *rtd = cstream->private_data; | |
501 | struct snd_soc_platform *platform = rtd->platform; | |
502 | int ret = 0; | |
503 | ||
15e2e619 CK |
504 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); |
505 | ||
1245b700 NK |
506 | if (platform->driver->compr_ops && platform->driver->compr_ops->get_codec_caps) |
507 | ret = platform->driver->compr_ops->get_codec_caps(cstream, codec); | |
508 | ||
15e2e619 | 509 | mutex_unlock(&rtd->pcm_mutex); |
1245b700 NK |
510 | return ret; |
511 | } | |
512 | ||
513 | static int soc_compr_ack(struct snd_compr_stream *cstream, size_t bytes) | |
514 | { | |
515 | struct snd_soc_pcm_runtime *rtd = cstream->private_data; | |
516 | struct snd_soc_platform *platform = rtd->platform; | |
517 | int ret = 0; | |
518 | ||
15e2e619 CK |
519 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); |
520 | ||
1245b700 NK |
521 | if (platform->driver->compr_ops && platform->driver->compr_ops->ack) |
522 | ret = platform->driver->compr_ops->ack(cstream, bytes); | |
523 | ||
15e2e619 | 524 | mutex_unlock(&rtd->pcm_mutex); |
1245b700 NK |
525 | return ret; |
526 | } | |
527 | ||
528 | static int soc_compr_pointer(struct snd_compr_stream *cstream, | |
529 | struct snd_compr_tstamp *tstamp) | |
530 | { | |
531 | struct snd_soc_pcm_runtime *rtd = cstream->private_data; | |
532 | struct snd_soc_platform *platform = rtd->platform; | |
533 | ||
15e2e619 CK |
534 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); |
535 | ||
1245b700 NK |
536 | if (platform->driver->compr_ops && platform->driver->compr_ops->pointer) |
537 | platform->driver->compr_ops->pointer(cstream, tstamp); | |
538 | ||
15e2e619 | 539 | mutex_unlock(&rtd->pcm_mutex); |
1245b700 NK |
540 | return 0; |
541 | } | |
542 | ||
1f88eb0f | 543 | static int soc_compr_copy(struct snd_compr_stream *cstream, |
4daf891c | 544 | char __user *buf, size_t count) |
1f88eb0f CK |
545 | { |
546 | struct snd_soc_pcm_runtime *rtd = cstream->private_data; | |
547 | struct snd_soc_platform *platform = rtd->platform; | |
548 | int ret = 0; | |
549 | ||
550 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); | |
551 | ||
552 | if (platform->driver->compr_ops && platform->driver->compr_ops->copy) | |
553 | ret = platform->driver->compr_ops->copy(cstream, buf, count); | |
554 | ||
555 | mutex_unlock(&rtd->pcm_mutex); | |
556 | return ret; | |
557 | } | |
558 | ||
02bd90e8 | 559 | static int soc_compr_set_metadata(struct snd_compr_stream *cstream, |
36953d98 JK |
560 | struct snd_compr_metadata *metadata) |
561 | { | |
562 | struct snd_soc_pcm_runtime *rtd = cstream->private_data; | |
563 | struct snd_soc_platform *platform = rtd->platform; | |
564 | int ret = 0; | |
565 | ||
566 | if (platform->driver->compr_ops && platform->driver->compr_ops->set_metadata) | |
567 | ret = platform->driver->compr_ops->set_metadata(cstream, metadata); | |
568 | ||
569 | return ret; | |
570 | } | |
571 | ||
02bd90e8 | 572 | static int soc_compr_get_metadata(struct snd_compr_stream *cstream, |
36953d98 JK |
573 | struct snd_compr_metadata *metadata) |
574 | { | |
575 | struct snd_soc_pcm_runtime *rtd = cstream->private_data; | |
576 | struct snd_soc_platform *platform = rtd->platform; | |
577 | int ret = 0; | |
578 | ||
579 | if (platform->driver->compr_ops && platform->driver->compr_ops->get_metadata) | |
580 | ret = platform->driver->compr_ops->get_metadata(cstream, metadata); | |
581 | ||
582 | return ret; | |
583 | } | |
2a99ef0f | 584 | |
1245b700 NK |
585 | /* ASoC Compress operations */ |
586 | static struct snd_compr_ops soc_compr_ops = { | |
587 | .open = soc_compr_open, | |
588 | .free = soc_compr_free, | |
589 | .set_params = soc_compr_set_params, | |
02bd90e8 VK |
590 | .set_metadata = soc_compr_set_metadata, |
591 | .get_metadata = soc_compr_get_metadata, | |
1245b700 NK |
592 | .get_params = soc_compr_get_params, |
593 | .trigger = soc_compr_trigger, | |
594 | .pointer = soc_compr_pointer, | |
595 | .ack = soc_compr_ack, | |
596 | .get_caps = soc_compr_get_caps, | |
597 | .get_codec_caps = soc_compr_get_codec_caps | |
598 | }; | |
599 | ||
2a99ef0f LG |
600 | /* ASoC Dynamic Compress operations */ |
601 | static struct snd_compr_ops soc_compr_dyn_ops = { | |
602 | .open = soc_compr_open_fe, | |
603 | .free = soc_compr_free_fe, | |
604 | .set_params = soc_compr_set_params_fe, | |
605 | .get_params = soc_compr_get_params, | |
606 | .set_metadata = soc_compr_set_metadata, | |
607 | .get_metadata = soc_compr_get_metadata, | |
608 | .trigger = soc_compr_trigger_fe, | |
609 | .pointer = soc_compr_pointer, | |
610 | .ack = soc_compr_ack, | |
611 | .get_caps = soc_compr_get_caps, | |
612 | .get_codec_caps = soc_compr_get_codec_caps | |
613 | }; | |
614 | ||
1245b700 NK |
615 | /* create a new compress */ |
616 | int soc_new_compress(struct snd_soc_pcm_runtime *rtd, int num) | |
617 | { | |
618 | struct snd_soc_codec *codec = rtd->codec; | |
1f88eb0f | 619 | struct snd_soc_platform *platform = rtd->platform; |
1245b700 NK |
620 | struct snd_soc_dai *codec_dai = rtd->codec_dai; |
621 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
622 | struct snd_compr *compr; | |
2a99ef0f | 623 | struct snd_pcm *be_pcm; |
1245b700 NK |
624 | char new_name[64]; |
625 | int ret = 0, direction = 0; | |
626 | ||
8151d5e6 BC |
627 | if (rtd->num_codecs > 1) { |
628 | dev_err(rtd->card->dev, "Multicodec not supported for compressed stream\n"); | |
629 | return -EINVAL; | |
630 | } | |
631 | ||
1245b700 NK |
632 | /* check client and interface hw capabilities */ |
633 | snprintf(new_name, sizeof(new_name), "%s %s-%d", | |
634 | rtd->dai_link->stream_name, codec_dai->name, num); | |
daa2db59 CK |
635 | |
636 | if (codec_dai->driver->playback.channels_min) | |
637 | direction = SND_COMPRESS_PLAYBACK; | |
638 | else if (codec_dai->driver->capture.channels_min) | |
639 | direction = SND_COMPRESS_CAPTURE; | |
640 | else | |
641 | return -EINVAL; | |
642 | ||
1245b700 NK |
643 | compr = kzalloc(sizeof(*compr), GFP_KERNEL); |
644 | if (compr == NULL) { | |
645 | snd_printk(KERN_ERR "Cannot allocate compr\n"); | |
646 | return -ENOMEM; | |
647 | } | |
648 | ||
1f88eb0f CK |
649 | compr->ops = devm_kzalloc(rtd->card->dev, sizeof(soc_compr_ops), |
650 | GFP_KERNEL); | |
651 | if (compr->ops == NULL) { | |
652 | dev_err(rtd->card->dev, "Cannot allocate compressed ops\n"); | |
653 | ret = -ENOMEM; | |
654 | goto compr_err; | |
655 | } | |
2a99ef0f LG |
656 | |
657 | if (rtd->dai_link->dynamic) { | |
658 | snprintf(new_name, sizeof(new_name), "(%s)", | |
659 | rtd->dai_link->stream_name); | |
660 | ||
661 | ret = snd_pcm_new_internal(rtd->card->snd_card, new_name, num, | |
662 | 1, 0, &be_pcm); | |
663 | if (ret < 0) { | |
664 | dev_err(rtd->card->dev, "ASoC: can't create compressed for %s\n", | |
665 | rtd->dai_link->name); | |
666 | goto compr_err; | |
667 | } | |
668 | ||
669 | rtd->pcm = be_pcm; | |
670 | rtd->fe_compr = 1; | |
671 | be_pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream->private_data = rtd; | |
672 | be_pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream->private_data = rtd; | |
673 | memcpy(compr->ops, &soc_compr_dyn_ops, sizeof(soc_compr_dyn_ops)); | |
674 | } else | |
675 | memcpy(compr->ops, &soc_compr_ops, sizeof(soc_compr_ops)); | |
1f88eb0f CK |
676 | |
677 | /* Add copy callback for not memory mapped DSPs */ | |
678 | if (platform->driver->compr_ops && platform->driver->compr_ops->copy) | |
679 | compr->ops->copy = soc_compr_copy; | |
680 | ||
1245b700 NK |
681 | mutex_init(&compr->lock); |
682 | ret = snd_compress_new(rtd->card->snd_card, num, direction, compr); | |
683 | if (ret < 0) { | |
684 | pr_err("compress asoc: can't create compress for codec %s\n", | |
f4333203 | 685 | codec->component.name); |
1f88eb0f | 686 | goto compr_err; |
1245b700 NK |
687 | } |
688 | ||
202c8f70 CK |
689 | /* DAPM dai link stream work */ |
690 | INIT_DELAYED_WORK(&rtd->delayed_work, close_delayed_work); | |
691 | ||
1245b700 NK |
692 | rtd->compr = compr; |
693 | compr->private_data = rtd; | |
694 | ||
695 | printk(KERN_INFO "compress asoc: %s <-> %s mapping ok\n", codec_dai->name, | |
696 | cpu_dai->name); | |
697 | return ret; | |
1f88eb0f CK |
698 | |
699 | compr_err: | |
700 | kfree(compr); | |
701 | return ret; | |
1245b700 | 702 | } |