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) { | |
40 | pr_err("compress asoc: can't open platform %s\n", platform->name); | |
41 | goto out; | |
42 | } | |
43 | } | |
44 | ||
45 | if (rtd->dai_link->compr_ops && rtd->dai_link->compr_ops->startup) { | |
46 | ret = rtd->dai_link->compr_ops->startup(cstream); | |
47 | if (ret < 0) { | |
48 | pr_err("compress asoc: %s startup failed\n", rtd->dai_link->name); | |
49 | goto machine_err; | |
50 | } | |
51 | } | |
52 | ||
24894b76 | 53 | snd_soc_runtime_activate(rtd, cstream->direction); |
1245b700 | 54 | |
15e2e619 CK |
55 | mutex_unlock(&rtd->pcm_mutex); |
56 | ||
1245b700 NK |
57 | return 0; |
58 | ||
59 | machine_err: | |
60 | if (platform->driver->compr_ops && platform->driver->compr_ops->free) | |
61 | platform->driver->compr_ops->free(cstream); | |
62 | out: | |
15e2e619 | 63 | mutex_unlock(&rtd->pcm_mutex); |
1245b700 NK |
64 | return ret; |
65 | } | |
66 | ||
2a99ef0f LG |
67 | static int soc_compr_open_fe(struct snd_compr_stream *cstream) |
68 | { | |
69 | struct snd_soc_pcm_runtime *fe = cstream->private_data; | |
70 | struct snd_pcm_substream *fe_substream = fe->pcm->streams[0].substream; | |
71 | struct snd_soc_platform *platform = fe->platform; | |
2a99ef0f LG |
72 | struct snd_soc_dpcm *dpcm; |
73 | struct snd_soc_dapm_widget_list *list; | |
74 | int stream; | |
75 | int ret = 0; | |
76 | ||
77 | if (cstream->direction == SND_COMPRESS_PLAYBACK) | |
78 | stream = SNDRV_PCM_STREAM_PLAYBACK; | |
79 | else | |
80 | stream = SNDRV_PCM_STREAM_CAPTURE; | |
81 | ||
82 | mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME); | |
83 | ||
84 | if (platform->driver->compr_ops && platform->driver->compr_ops->open) { | |
85 | ret = platform->driver->compr_ops->open(cstream); | |
86 | if (ret < 0) { | |
87 | pr_err("compress asoc: can't open platform %s\n", platform->name); | |
88 | goto out; | |
89 | } | |
90 | } | |
91 | ||
92 | if (fe->dai_link->compr_ops && fe->dai_link->compr_ops->startup) { | |
93 | ret = fe->dai_link->compr_ops->startup(cstream); | |
94 | if (ret < 0) { | |
95 | pr_err("compress asoc: %s startup failed\n", fe->dai_link->name); | |
96 | goto machine_err; | |
97 | } | |
98 | } | |
99 | ||
100 | fe->dpcm[stream].runtime = fe_substream->runtime; | |
101 | ||
102 | if (dpcm_path_get(fe, stream, &list) <= 0) { | |
103 | dev_dbg(fe->dev, "ASoC: %s no valid %s route\n", | |
104 | fe->dai_link->name, stream ? "capture" : "playback"); | |
105 | } | |
106 | ||
107 | /* calculate valid and active FE <-> BE dpcms */ | |
108 | dpcm_process_paths(fe, stream, &list, 1); | |
109 | ||
110 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_FE; | |
111 | ||
112 | ret = dpcm_be_dai_startup(fe, stream); | |
113 | if (ret < 0) { | |
114 | /* clean up all links */ | |
115 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) | |
116 | dpcm->state = SND_SOC_DPCM_LINK_STATE_FREE; | |
117 | ||
118 | dpcm_be_disconnect(fe, stream); | |
119 | fe->dpcm[stream].runtime = NULL; | |
120 | goto fe_err; | |
121 | } | |
122 | ||
123 | dpcm_clear_pending_state(fe, stream); | |
124 | dpcm_path_put(&list); | |
125 | ||
126 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_OPEN; | |
127 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO; | |
128 | ||
24894b76 | 129 | snd_soc_runtime_activate(fe, stream); |
2a99ef0f LG |
130 | |
131 | mutex_unlock(&fe->card->mutex); | |
132 | ||
133 | return 0; | |
134 | ||
135 | fe_err: | |
136 | if (fe->dai_link->compr_ops && fe->dai_link->compr_ops->shutdown) | |
137 | fe->dai_link->compr_ops->shutdown(cstream); | |
138 | machine_err: | |
139 | if (platform->driver->compr_ops && platform->driver->compr_ops->free) | |
140 | platform->driver->compr_ops->free(cstream); | |
141 | out: | |
142 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO; | |
143 | mutex_unlock(&fe->card->mutex); | |
144 | return ret; | |
145 | } | |
146 | ||
202c8f70 CK |
147 | /* |
148 | * Power down the audio subsystem pmdown_time msecs after close is called. | |
149 | * This is to ensure there are no pops or clicks in between any music tracks | |
150 | * due to DAPM power cycling. | |
151 | */ | |
152 | static void close_delayed_work(struct work_struct *work) | |
153 | { | |
154 | struct snd_soc_pcm_runtime *rtd = | |
155 | container_of(work, struct snd_soc_pcm_runtime, delayed_work.work); | |
156 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
157 | ||
158 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); | |
159 | ||
160 | dev_dbg(rtd->dev, "ASoC: pop wq checking: %s status: %s waiting: %s\n", | |
161 | codec_dai->driver->playback.stream_name, | |
162 | codec_dai->playback_active ? "active" : "inactive", | |
163 | rtd->pop_wait ? "yes" : "no"); | |
164 | ||
165 | /* are we waiting on this codec DAI stream */ | |
166 | if (rtd->pop_wait == 1) { | |
167 | rtd->pop_wait = 0; | |
168 | snd_soc_dapm_stream_event(rtd, SNDRV_PCM_STREAM_PLAYBACK, | |
169 | SND_SOC_DAPM_STREAM_STOP); | |
170 | } | |
171 | ||
172 | mutex_unlock(&rtd->pcm_mutex); | |
173 | } | |
174 | ||
1245b700 NK |
175 | static int soc_compr_free(struct snd_compr_stream *cstream) |
176 | { | |
177 | struct snd_soc_pcm_runtime *rtd = cstream->private_data; | |
178 | struct snd_soc_platform *platform = rtd->platform; | |
179 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
180 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
24894b76 | 181 | int stream; |
1245b700 | 182 | |
15e2e619 CK |
183 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); |
184 | ||
24894b76 LPC |
185 | if (cstream->direction == SND_COMPRESS_PLAYBACK) |
186 | stream = SNDRV_PCM_STREAM_PLAYBACK; | |
187 | else | |
188 | stream = SNDRV_PCM_STREAM_CAPTURE; | |
1245b700 | 189 | |
24894b76 | 190 | snd_soc_runtime_deactivate(rtd, stream); |
da18396f | 191 | |
24894b76 | 192 | snd_soc_dai_digital_mute(codec_dai, 1, cstream->direction); |
1245b700 NK |
193 | |
194 | if (!cpu_dai->active) | |
195 | cpu_dai->rate = 0; | |
196 | ||
197 | if (!codec_dai->active) | |
198 | codec_dai->rate = 0; | |
199 | ||
200 | ||
201 | if (rtd->dai_link->compr_ops && rtd->dai_link->compr_ops->shutdown) | |
202 | rtd->dai_link->compr_ops->shutdown(cstream); | |
203 | ||
204 | if (platform->driver->compr_ops && platform->driver->compr_ops->free) | |
205 | platform->driver->compr_ops->free(cstream); | |
1245b700 NK |
206 | |
207 | if (cstream->direction == SND_COMPRESS_PLAYBACK) { | |
208a1589 | 208 | if (snd_soc_runtime_ignore_pmdown_time(rtd)) { |
1245b700 NK |
209 | snd_soc_dapm_stream_event(rtd, |
210 | SNDRV_PCM_STREAM_PLAYBACK, | |
211 | SND_SOC_DAPM_STREAM_STOP); | |
8c3d2aa4 | 212 | } else { |
9bffb1fb | 213 | rtd->pop_wait = 1; |
3d24cfe4 MB |
214 | queue_delayed_work(system_power_efficient_wq, |
215 | &rtd->delayed_work, | |
216 | msecs_to_jiffies(rtd->pmdown_time)); | |
8c3d2aa4 | 217 | } |
1245b700 NK |
218 | } else { |
219 | /* capture streams can be powered down now */ | |
220 | snd_soc_dapm_stream_event(rtd, | |
221 | SNDRV_PCM_STREAM_CAPTURE, | |
222 | SND_SOC_DAPM_STREAM_STOP); | |
223 | } | |
224 | ||
15e2e619 | 225 | mutex_unlock(&rtd->pcm_mutex); |
1245b700 NK |
226 | return 0; |
227 | } | |
228 | ||
2a99ef0f LG |
229 | static int soc_compr_free_fe(struct snd_compr_stream *cstream) |
230 | { | |
231 | struct snd_soc_pcm_runtime *fe = cstream->private_data; | |
232 | struct snd_soc_platform *platform = fe->platform; | |
2a99ef0f LG |
233 | struct snd_soc_dpcm *dpcm; |
234 | int stream, ret; | |
235 | ||
236 | mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME); | |
237 | ||
24894b76 | 238 | if (cstream->direction == SND_COMPRESS_PLAYBACK) |
2a99ef0f | 239 | stream = SNDRV_PCM_STREAM_PLAYBACK; |
24894b76 | 240 | else |
2a99ef0f | 241 | stream = SNDRV_PCM_STREAM_CAPTURE; |
2a99ef0f | 242 | |
24894b76 | 243 | snd_soc_runtime_deactivate(fe, stream); |
2a99ef0f LG |
244 | |
245 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_FE; | |
246 | ||
247 | ret = dpcm_be_dai_hw_free(fe, stream); | |
248 | if (ret < 0) | |
249 | dev_err(fe->dev, "compressed hw_free failed %d\n", ret); | |
250 | ||
251 | ret = dpcm_be_dai_shutdown(fe, stream); | |
252 | ||
253 | /* mark FE's links ready to prune */ | |
254 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) | |
255 | dpcm->state = SND_SOC_DPCM_LINK_STATE_FREE; | |
256 | ||
257 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) | |
258 | dpcm_dapm_stream_event(fe, stream, SND_SOC_DAPM_STREAM_STOP); | |
259 | else | |
260 | dpcm_dapm_stream_event(fe, stream, SND_SOC_DAPM_STREAM_STOP); | |
261 | ||
262 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_CLOSE; | |
263 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO; | |
264 | ||
265 | dpcm_be_disconnect(fe, stream); | |
266 | ||
267 | fe->dpcm[stream].runtime = NULL; | |
268 | ||
269 | if (fe->dai_link->compr_ops && fe->dai_link->compr_ops->shutdown) | |
270 | fe->dai_link->compr_ops->shutdown(cstream); | |
271 | ||
272 | if (platform->driver->compr_ops && platform->driver->compr_ops->free) | |
273 | platform->driver->compr_ops->free(cstream); | |
274 | ||
275 | mutex_unlock(&fe->card->mutex); | |
276 | return 0; | |
277 | } | |
278 | ||
1245b700 NK |
279 | static int soc_compr_trigger(struct snd_compr_stream *cstream, int cmd) |
280 | { | |
281 | ||
282 | struct snd_soc_pcm_runtime *rtd = cstream->private_data; | |
283 | struct snd_soc_platform *platform = rtd->platform; | |
284 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
285 | int ret = 0; | |
286 | ||
15e2e619 CK |
287 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); |
288 | ||
1245b700 NK |
289 | if (platform->driver->compr_ops && platform->driver->compr_ops->trigger) { |
290 | ret = platform->driver->compr_ops->trigger(cstream, cmd); | |
291 | if (ret < 0) | |
15e2e619 | 292 | goto out; |
1245b700 NK |
293 | } |
294 | ||
da18396f MB |
295 | switch (cmd) { |
296 | case SNDRV_PCM_TRIGGER_START: | |
297 | snd_soc_dai_digital_mute(codec_dai, 0, cstream->direction); | |
298 | break; | |
299 | case SNDRV_PCM_TRIGGER_STOP: | |
300 | snd_soc_dai_digital_mute(codec_dai, 1, cstream->direction); | |
301 | break; | |
e38b9b74 | 302 | } |
1245b700 | 303 | |
15e2e619 CK |
304 | out: |
305 | mutex_unlock(&rtd->pcm_mutex); | |
1245b700 NK |
306 | return ret; |
307 | } | |
308 | ||
2a99ef0f LG |
309 | static int soc_compr_trigger_fe(struct snd_compr_stream *cstream, int cmd) |
310 | { | |
311 | struct snd_soc_pcm_runtime *fe = cstream->private_data; | |
312 | struct snd_soc_platform *platform = fe->platform; | |
313 | int ret = 0, stream; | |
314 | ||
315 | if (cmd == SND_COMPR_TRIGGER_PARTIAL_DRAIN || | |
316 | cmd == SND_COMPR_TRIGGER_DRAIN) { | |
317 | ||
318 | if (platform->driver->compr_ops && | |
15b8e94f DC |
319 | platform->driver->compr_ops->trigger) |
320 | return platform->driver->compr_ops->trigger(cstream, | |
321 | cmd); | |
2a99ef0f LG |
322 | } |
323 | ||
324 | if (cstream->direction == SND_COMPRESS_PLAYBACK) | |
325 | stream = SNDRV_PCM_STREAM_PLAYBACK; | |
326 | else | |
327 | stream = SNDRV_PCM_STREAM_CAPTURE; | |
328 | ||
329 | ||
330 | mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME); | |
331 | ||
332 | if (platform->driver->compr_ops && platform->driver->compr_ops->trigger) { | |
333 | ret = platform->driver->compr_ops->trigger(cstream, cmd); | |
334 | if (ret < 0) | |
335 | goto out; | |
336 | } | |
337 | ||
338 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_FE; | |
339 | ||
340 | ret = dpcm_be_dai_trigger(fe, stream, cmd); | |
341 | ||
342 | switch (cmd) { | |
343 | case SNDRV_PCM_TRIGGER_START: | |
344 | case SNDRV_PCM_TRIGGER_RESUME: | |
345 | case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: | |
346 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_START; | |
347 | break; | |
348 | case SNDRV_PCM_TRIGGER_STOP: | |
349 | case SNDRV_PCM_TRIGGER_SUSPEND: | |
350 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_STOP; | |
351 | break; | |
352 | case SNDRV_PCM_TRIGGER_PAUSE_PUSH: | |
353 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_PAUSED; | |
354 | break; | |
355 | } | |
356 | ||
357 | out: | |
358 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO; | |
359 | mutex_unlock(&fe->card->mutex); | |
360 | return ret; | |
361 | } | |
362 | ||
1245b700 NK |
363 | static int soc_compr_set_params(struct snd_compr_stream *cstream, |
364 | struct snd_compr_params *params) | |
365 | { | |
366 | struct snd_soc_pcm_runtime *rtd = cstream->private_data; | |
367 | struct snd_soc_platform *platform = rtd->platform; | |
1245b700 NK |
368 | int ret = 0; |
369 | ||
15e2e619 CK |
370 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); |
371 | ||
1245b700 NK |
372 | /* first we call set_params for the platform driver |
373 | * this should configure the soc side | |
374 | * if the machine has compressed ops then we call that as well | |
375 | * expectation is that platform and machine will configure everything | |
376 | * for this compress path, like configuring pcm port for codec | |
377 | */ | |
378 | if (platform->driver->compr_ops && platform->driver->compr_ops->set_params) { | |
379 | ret = platform->driver->compr_ops->set_params(cstream, params); | |
380 | if (ret < 0) | |
fa40ef20 | 381 | goto err; |
1245b700 NK |
382 | } |
383 | ||
384 | if (rtd->dai_link->compr_ops && rtd->dai_link->compr_ops->set_params) { | |
385 | ret = rtd->dai_link->compr_ops->set_params(cstream); | |
386 | if (ret < 0) | |
fa40ef20 | 387 | goto err; |
1245b700 NK |
388 | } |
389 | ||
2c071ed7 CK |
390 | if (cstream->direction == SND_COMPRESS_PLAYBACK) |
391 | snd_soc_dapm_stream_event(rtd, SNDRV_PCM_STREAM_PLAYBACK, | |
392 | SND_SOC_DAPM_STREAM_START); | |
393 | else | |
394 | snd_soc_dapm_stream_event(rtd, SNDRV_PCM_STREAM_CAPTURE, | |
395 | SND_SOC_DAPM_STREAM_START); | |
1245b700 | 396 | |
fa40ef20 CK |
397 | /* cancel any delayed stream shutdown that is pending */ |
398 | rtd->pop_wait = 0; | |
399 | mutex_unlock(&rtd->pcm_mutex); | |
400 | ||
401 | cancel_delayed_work_sync(&rtd->delayed_work); | |
402 | ||
403 | return ret; | |
404 | ||
405 | err: | |
15e2e619 | 406 | mutex_unlock(&rtd->pcm_mutex); |
1245b700 NK |
407 | return ret; |
408 | } | |
409 | ||
2a99ef0f LG |
410 | static int soc_compr_set_params_fe(struct snd_compr_stream *cstream, |
411 | struct snd_compr_params *params) | |
412 | { | |
413 | struct snd_soc_pcm_runtime *fe = cstream->private_data; | |
414 | struct snd_pcm_substream *fe_substream = fe->pcm->streams[0].substream; | |
415 | struct snd_soc_platform *platform = fe->platform; | |
416 | int ret = 0, stream; | |
417 | ||
418 | if (cstream->direction == SND_COMPRESS_PLAYBACK) | |
419 | stream = SNDRV_PCM_STREAM_PLAYBACK; | |
420 | else | |
421 | stream = SNDRV_PCM_STREAM_CAPTURE; | |
422 | ||
423 | mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME); | |
424 | ||
425 | if (platform->driver->compr_ops && platform->driver->compr_ops->set_params) { | |
426 | ret = platform->driver->compr_ops->set_params(cstream, params); | |
427 | if (ret < 0) | |
428 | goto out; | |
429 | } | |
430 | ||
431 | if (fe->dai_link->compr_ops && fe->dai_link->compr_ops->set_params) { | |
432 | ret = fe->dai_link->compr_ops->set_params(cstream); | |
433 | if (ret < 0) | |
434 | goto out; | |
435 | } | |
436 | ||
437 | /* | |
438 | * Create an empty hw_params for the BE as the machine driver must | |
439 | * fix this up to match DSP decoder and ASRC configuration. | |
440 | * I.e. machine driver fixup for compressed BE is mandatory. | |
441 | */ | |
442 | memset(&fe->dpcm[fe_substream->stream].hw_params, 0, | |
443 | sizeof(struct snd_pcm_hw_params)); | |
444 | ||
445 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_FE; | |
446 | ||
447 | ret = dpcm_be_dai_hw_params(fe, stream); | |
448 | if (ret < 0) | |
449 | goto out; | |
450 | ||
451 | ret = dpcm_be_dai_prepare(fe, stream); | |
452 | if (ret < 0) | |
453 | goto out; | |
454 | ||
455 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) | |
456 | dpcm_dapm_stream_event(fe, stream, SND_SOC_DAPM_STREAM_START); | |
457 | else | |
458 | dpcm_dapm_stream_event(fe, stream, SND_SOC_DAPM_STREAM_START); | |
459 | ||
460 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_PREPARE; | |
461 | ||
462 | out: | |
463 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO; | |
464 | mutex_unlock(&fe->card->mutex); | |
465 | return ret; | |
466 | } | |
467 | ||
1245b700 NK |
468 | static int soc_compr_get_params(struct snd_compr_stream *cstream, |
469 | struct snd_codec *params) | |
470 | { | |
471 | struct snd_soc_pcm_runtime *rtd = cstream->private_data; | |
472 | struct snd_soc_platform *platform = rtd->platform; | |
473 | int ret = 0; | |
474 | ||
15e2e619 CK |
475 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); |
476 | ||
1245b700 NK |
477 | if (platform->driver->compr_ops && platform->driver->compr_ops->get_params) |
478 | ret = platform->driver->compr_ops->get_params(cstream, params); | |
479 | ||
15e2e619 | 480 | mutex_unlock(&rtd->pcm_mutex); |
1245b700 NK |
481 | return ret; |
482 | } | |
483 | ||
484 | static int soc_compr_get_caps(struct snd_compr_stream *cstream, | |
485 | struct snd_compr_caps *caps) | |
486 | { | |
487 | struct snd_soc_pcm_runtime *rtd = cstream->private_data; | |
488 | struct snd_soc_platform *platform = rtd->platform; | |
489 | int ret = 0; | |
490 | ||
15e2e619 CK |
491 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); |
492 | ||
1245b700 NK |
493 | if (platform->driver->compr_ops && platform->driver->compr_ops->get_caps) |
494 | ret = platform->driver->compr_ops->get_caps(cstream, caps); | |
495 | ||
15e2e619 | 496 | mutex_unlock(&rtd->pcm_mutex); |
1245b700 NK |
497 | return ret; |
498 | } | |
499 | ||
500 | static int soc_compr_get_codec_caps(struct snd_compr_stream *cstream, | |
501 | struct snd_compr_codec_caps *codec) | |
502 | { | |
503 | struct snd_soc_pcm_runtime *rtd = cstream->private_data; | |
504 | struct snd_soc_platform *platform = rtd->platform; | |
505 | int ret = 0; | |
506 | ||
15e2e619 CK |
507 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); |
508 | ||
1245b700 NK |
509 | if (platform->driver->compr_ops && platform->driver->compr_ops->get_codec_caps) |
510 | ret = platform->driver->compr_ops->get_codec_caps(cstream, codec); | |
511 | ||
15e2e619 | 512 | mutex_unlock(&rtd->pcm_mutex); |
1245b700 NK |
513 | return ret; |
514 | } | |
515 | ||
516 | static int soc_compr_ack(struct snd_compr_stream *cstream, size_t bytes) | |
517 | { | |
518 | struct snd_soc_pcm_runtime *rtd = cstream->private_data; | |
519 | struct snd_soc_platform *platform = rtd->platform; | |
520 | int ret = 0; | |
521 | ||
15e2e619 CK |
522 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); |
523 | ||
1245b700 NK |
524 | if (platform->driver->compr_ops && platform->driver->compr_ops->ack) |
525 | ret = platform->driver->compr_ops->ack(cstream, bytes); | |
526 | ||
15e2e619 | 527 | mutex_unlock(&rtd->pcm_mutex); |
1245b700 NK |
528 | return ret; |
529 | } | |
530 | ||
531 | static int soc_compr_pointer(struct snd_compr_stream *cstream, | |
532 | struct snd_compr_tstamp *tstamp) | |
533 | { | |
534 | struct snd_soc_pcm_runtime *rtd = cstream->private_data; | |
535 | struct snd_soc_platform *platform = rtd->platform; | |
536 | ||
15e2e619 CK |
537 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); |
538 | ||
1245b700 NK |
539 | if (platform->driver->compr_ops && platform->driver->compr_ops->pointer) |
540 | platform->driver->compr_ops->pointer(cstream, tstamp); | |
541 | ||
15e2e619 | 542 | mutex_unlock(&rtd->pcm_mutex); |
1245b700 NK |
543 | return 0; |
544 | } | |
545 | ||
1f88eb0f | 546 | static int soc_compr_copy(struct snd_compr_stream *cstream, |
4daf891c | 547 | char __user *buf, size_t count) |
1f88eb0f CK |
548 | { |
549 | struct snd_soc_pcm_runtime *rtd = cstream->private_data; | |
550 | struct snd_soc_platform *platform = rtd->platform; | |
551 | int ret = 0; | |
552 | ||
553 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); | |
554 | ||
555 | if (platform->driver->compr_ops && platform->driver->compr_ops->copy) | |
556 | ret = platform->driver->compr_ops->copy(cstream, buf, count); | |
557 | ||
558 | mutex_unlock(&rtd->pcm_mutex); | |
559 | return ret; | |
560 | } | |
561 | ||
02bd90e8 | 562 | static int soc_compr_set_metadata(struct snd_compr_stream *cstream, |
36953d98 JK |
563 | struct snd_compr_metadata *metadata) |
564 | { | |
565 | struct snd_soc_pcm_runtime *rtd = cstream->private_data; | |
566 | struct snd_soc_platform *platform = rtd->platform; | |
567 | int ret = 0; | |
568 | ||
569 | if (platform->driver->compr_ops && platform->driver->compr_ops->set_metadata) | |
570 | ret = platform->driver->compr_ops->set_metadata(cstream, metadata); | |
571 | ||
572 | return ret; | |
573 | } | |
574 | ||
02bd90e8 | 575 | static int soc_compr_get_metadata(struct snd_compr_stream *cstream, |
36953d98 JK |
576 | struct snd_compr_metadata *metadata) |
577 | { | |
578 | struct snd_soc_pcm_runtime *rtd = cstream->private_data; | |
579 | struct snd_soc_platform *platform = rtd->platform; | |
580 | int ret = 0; | |
581 | ||
582 | if (platform->driver->compr_ops && platform->driver->compr_ops->get_metadata) | |
583 | ret = platform->driver->compr_ops->get_metadata(cstream, metadata); | |
584 | ||
585 | return ret; | |
586 | } | |
2a99ef0f | 587 | |
1245b700 NK |
588 | /* ASoC Compress operations */ |
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, | |
02bd90e8 VK |
593 | .set_metadata = soc_compr_set_metadata, |
594 | .get_metadata = soc_compr_get_metadata, | |
1245b700 NK |
595 | .get_params = soc_compr_get_params, |
596 | .trigger = soc_compr_trigger, | |
597 | .pointer = soc_compr_pointer, | |
598 | .ack = soc_compr_ack, | |
599 | .get_caps = soc_compr_get_caps, | |
600 | .get_codec_caps = soc_compr_get_codec_caps | |
601 | }; | |
602 | ||
2a99ef0f LG |
603 | /* ASoC Dynamic Compress operations */ |
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 | |
616 | }; | |
617 | ||
1245b700 NK |
618 | /* create a new compress */ |
619 | int soc_new_compress(struct snd_soc_pcm_runtime *rtd, int num) | |
620 | { | |
621 | struct snd_soc_codec *codec = rtd->codec; | |
1f88eb0f | 622 | struct snd_soc_platform *platform = rtd->platform; |
1245b700 NK |
623 | struct snd_soc_dai *codec_dai = rtd->codec_dai; |
624 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
625 | struct snd_compr *compr; | |
2a99ef0f | 626 | struct snd_pcm *be_pcm; |
1245b700 NK |
627 | char new_name[64]; |
628 | int ret = 0, direction = 0; | |
629 | ||
630 | /* check client and interface hw capabilities */ | |
631 | snprintf(new_name, sizeof(new_name), "%s %s-%d", | |
632 | rtd->dai_link->stream_name, codec_dai->name, num); | |
daa2db59 CK |
633 | |
634 | if (codec_dai->driver->playback.channels_min) | |
635 | direction = SND_COMPRESS_PLAYBACK; | |
636 | else if (codec_dai->driver->capture.channels_min) | |
637 | direction = SND_COMPRESS_CAPTURE; | |
638 | else | |
639 | return -EINVAL; | |
640 | ||
1245b700 NK |
641 | compr = kzalloc(sizeof(*compr), GFP_KERNEL); |
642 | if (compr == NULL) { | |
643 | snd_printk(KERN_ERR "Cannot allocate compr\n"); | |
644 | return -ENOMEM; | |
645 | } | |
646 | ||
1f88eb0f CK |
647 | compr->ops = devm_kzalloc(rtd->card->dev, sizeof(soc_compr_ops), |
648 | GFP_KERNEL); | |
649 | if (compr->ops == NULL) { | |
650 | dev_err(rtd->card->dev, "Cannot allocate compressed ops\n"); | |
651 | ret = -ENOMEM; | |
652 | goto compr_err; | |
653 | } | |
2a99ef0f LG |
654 | |
655 | if (rtd->dai_link->dynamic) { | |
656 | snprintf(new_name, sizeof(new_name), "(%s)", | |
657 | rtd->dai_link->stream_name); | |
658 | ||
659 | ret = snd_pcm_new_internal(rtd->card->snd_card, new_name, num, | |
660 | 1, 0, &be_pcm); | |
661 | if (ret < 0) { | |
662 | dev_err(rtd->card->dev, "ASoC: can't create compressed for %s\n", | |
663 | rtd->dai_link->name); | |
664 | goto compr_err; | |
665 | } | |
666 | ||
667 | rtd->pcm = be_pcm; | |
668 | rtd->fe_compr = 1; | |
669 | be_pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream->private_data = rtd; | |
670 | be_pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream->private_data = rtd; | |
671 | memcpy(compr->ops, &soc_compr_dyn_ops, sizeof(soc_compr_dyn_ops)); | |
672 | } else | |
673 | memcpy(compr->ops, &soc_compr_ops, sizeof(soc_compr_ops)); | |
1f88eb0f CK |
674 | |
675 | /* Add copy callback for not memory mapped DSPs */ | |
676 | if (platform->driver->compr_ops && platform->driver->compr_ops->copy) | |
677 | compr->ops->copy = soc_compr_copy; | |
678 | ||
1245b700 NK |
679 | mutex_init(&compr->lock); |
680 | ret = snd_compress_new(rtd->card->snd_card, num, direction, compr); | |
681 | if (ret < 0) { | |
682 | pr_err("compress asoc: can't create compress for codec %s\n", | |
683 | codec->name); | |
1f88eb0f | 684 | goto compr_err; |
1245b700 NK |
685 | } |
686 | ||
202c8f70 CK |
687 | /* DAPM dai link stream work */ |
688 | INIT_DELAYED_WORK(&rtd->delayed_work, close_delayed_work); | |
689 | ||
1245b700 NK |
690 | rtd->compr = compr; |
691 | compr->private_data = rtd; | |
692 | ||
693 | printk(KERN_INFO "compress asoc: %s <-> %s mapping ok\n", codec_dai->name, | |
694 | cpu_dai->name); | |
695 | return ret; | |
1f88eb0f CK |
696 | |
697 | compr_err: | |
698 | kfree(compr); | |
699 | return ret; | |
1245b700 | 700 | } |