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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; | |
2e622ae4 | 33 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
1245b700 NK |
34 | int ret = 0; |
35 | ||
15e2e619 CK |
36 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); |
37 | ||
2e622ae4 VK |
38 | if (cpu_dai->driver->cops && cpu_dai->driver->cops->startup) { |
39 | ret = cpu_dai->driver->cops->startup(cstream, cpu_dai); | |
40 | if (ret < 0) { | |
41 | dev_err(cpu_dai->dev, "Compress ASoC: can't open interface %s: %d\n", | |
42 | cpu_dai->name, ret); | |
43 | goto out; | |
44 | } | |
45 | } | |
46 | ||
1245b700 NK |
47 | if (platform->driver->compr_ops && platform->driver->compr_ops->open) { |
48 | ret = platform->driver->compr_ops->open(cstream); | |
49 | if (ret < 0) { | |
f4333203 LPC |
50 | pr_err("compress asoc: can't open platform %s\n", |
51 | platform->component.name); | |
2e622ae4 | 52 | goto plat_err; |
1245b700 NK |
53 | } |
54 | } | |
55 | ||
56 | if (rtd->dai_link->compr_ops && rtd->dai_link->compr_ops->startup) { | |
57 | ret = rtd->dai_link->compr_ops->startup(cstream); | |
58 | if (ret < 0) { | |
59 | pr_err("compress asoc: %s startup failed\n", rtd->dai_link->name); | |
60 | goto machine_err; | |
61 | } | |
62 | } | |
63 | ||
24894b76 | 64 | snd_soc_runtime_activate(rtd, cstream->direction); |
1245b700 | 65 | |
15e2e619 CK |
66 | mutex_unlock(&rtd->pcm_mutex); |
67 | ||
1245b700 NK |
68 | return 0; |
69 | ||
70 | machine_err: | |
71 | if (platform->driver->compr_ops && platform->driver->compr_ops->free) | |
72 | platform->driver->compr_ops->free(cstream); | |
2e622ae4 VK |
73 | plat_err: |
74 | if (cpu_dai->driver->cops && cpu_dai->driver->cops->shutdown) | |
75 | cpu_dai->driver->cops->shutdown(cstream, cpu_dai); | |
1245b700 | 76 | out: |
15e2e619 | 77 | mutex_unlock(&rtd->pcm_mutex); |
1245b700 NK |
78 | return ret; |
79 | } | |
80 | ||
2a99ef0f LG |
81 | static int soc_compr_open_fe(struct snd_compr_stream *cstream) |
82 | { | |
83 | struct snd_soc_pcm_runtime *fe = cstream->private_data; | |
84 | struct snd_pcm_substream *fe_substream = fe->pcm->streams[0].substream; | |
85 | struct snd_soc_platform *platform = fe->platform; | |
2e622ae4 | 86 | struct snd_soc_dai *cpu_dai = fe->cpu_dai; |
2a99ef0f LG |
87 | struct snd_soc_dpcm *dpcm; |
88 | struct snd_soc_dapm_widget_list *list; | |
89 | int stream; | |
90 | int ret = 0; | |
91 | ||
92 | if (cstream->direction == SND_COMPRESS_PLAYBACK) | |
93 | stream = SNDRV_PCM_STREAM_PLAYBACK; | |
94 | else | |
95 | stream = SNDRV_PCM_STREAM_CAPTURE; | |
96 | ||
97 | mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME); | |
98 | ||
2e622ae4 VK |
99 | if (cpu_dai->driver->cops && cpu_dai->driver->cops->startup) { |
100 | ret = cpu_dai->driver->cops->startup(cstream, cpu_dai); | |
101 | if (ret < 0) { | |
102 | dev_err(cpu_dai->dev, "Compress ASoC: can't open interface %s: %d\n", | |
103 | cpu_dai->name, ret); | |
104 | goto out; | |
105 | } | |
106 | } | |
107 | ||
108 | ||
2a99ef0f LG |
109 | if (platform->driver->compr_ops && platform->driver->compr_ops->open) { |
110 | ret = platform->driver->compr_ops->open(cstream); | |
111 | if (ret < 0) { | |
f4333203 LPC |
112 | pr_err("compress asoc: can't open platform %s\n", |
113 | platform->component.name); | |
2e622ae4 | 114 | goto plat_err; |
2a99ef0f LG |
115 | } |
116 | } | |
117 | ||
118 | if (fe->dai_link->compr_ops && fe->dai_link->compr_ops->startup) { | |
119 | ret = fe->dai_link->compr_ops->startup(cstream); | |
120 | if (ret < 0) { | |
121 | pr_err("compress asoc: %s startup failed\n", fe->dai_link->name); | |
122 | goto machine_err; | |
123 | } | |
124 | } | |
125 | ||
126 | fe->dpcm[stream].runtime = fe_substream->runtime; | |
127 | ||
8f70e515 | 128 | ret = dpcm_path_get(fe, stream, &list); |
2e4ec1c0 | 129 | if (ret < 0) |
8f70e515 | 130 | goto fe_err; |
2e4ec1c0 | 131 | else if (ret == 0) |
2a99ef0f LG |
132 | dev_dbg(fe->dev, "ASoC: %s no valid %s route\n", |
133 | fe->dai_link->name, stream ? "capture" : "playback"); | |
2a99ef0f LG |
134 | |
135 | /* calculate valid and active FE <-> BE dpcms */ | |
136 | dpcm_process_paths(fe, stream, &list, 1); | |
137 | ||
138 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_FE; | |
139 | ||
140 | ret = dpcm_be_dai_startup(fe, stream); | |
141 | if (ret < 0) { | |
142 | /* clean up all links */ | |
143 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) | |
144 | dpcm->state = SND_SOC_DPCM_LINK_STATE_FREE; | |
145 | ||
146 | dpcm_be_disconnect(fe, stream); | |
147 | fe->dpcm[stream].runtime = NULL; | |
b0f12c61 | 148 | goto path_err; |
2a99ef0f LG |
149 | } |
150 | ||
151 | dpcm_clear_pending_state(fe, stream); | |
152 | dpcm_path_put(&list); | |
153 | ||
154 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_OPEN; | |
155 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO; | |
156 | ||
24894b76 | 157 | snd_soc_runtime_activate(fe, stream); |
2a99ef0f LG |
158 | |
159 | mutex_unlock(&fe->card->mutex); | |
160 | ||
161 | return 0; | |
162 | ||
b0f12c61 CK |
163 | path_err: |
164 | dpcm_path_put(&list); | |
2a99ef0f LG |
165 | fe_err: |
166 | if (fe->dai_link->compr_ops && fe->dai_link->compr_ops->shutdown) | |
167 | fe->dai_link->compr_ops->shutdown(cstream); | |
168 | machine_err: | |
169 | if (platform->driver->compr_ops && platform->driver->compr_ops->free) | |
170 | platform->driver->compr_ops->free(cstream); | |
2e622ae4 VK |
171 | plat_err: |
172 | if (cpu_dai->driver->cops && cpu_dai->driver->cops->shutdown) | |
173 | cpu_dai->driver->cops->shutdown(cstream, cpu_dai); | |
2a99ef0f LG |
174 | out: |
175 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO; | |
176 | mutex_unlock(&fe->card->mutex); | |
177 | return ret; | |
178 | } | |
179 | ||
202c8f70 CK |
180 | /* |
181 | * Power down the audio subsystem pmdown_time msecs after close is called. | |
182 | * This is to ensure there are no pops or clicks in between any music tracks | |
183 | * due to DAPM power cycling. | |
184 | */ | |
185 | static void close_delayed_work(struct work_struct *work) | |
186 | { | |
187 | struct snd_soc_pcm_runtime *rtd = | |
188 | container_of(work, struct snd_soc_pcm_runtime, delayed_work.work); | |
189 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
190 | ||
191 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); | |
192 | ||
193 | dev_dbg(rtd->dev, "ASoC: pop wq checking: %s status: %s waiting: %s\n", | |
194 | codec_dai->driver->playback.stream_name, | |
195 | codec_dai->playback_active ? "active" : "inactive", | |
196 | rtd->pop_wait ? "yes" : "no"); | |
197 | ||
198 | /* are we waiting on this codec DAI stream */ | |
199 | if (rtd->pop_wait == 1) { | |
200 | rtd->pop_wait = 0; | |
201 | snd_soc_dapm_stream_event(rtd, SNDRV_PCM_STREAM_PLAYBACK, | |
202 | SND_SOC_DAPM_STREAM_STOP); | |
203 | } | |
204 | ||
205 | mutex_unlock(&rtd->pcm_mutex); | |
206 | } | |
207 | ||
1245b700 NK |
208 | static int soc_compr_free(struct snd_compr_stream *cstream) |
209 | { | |
210 | struct snd_soc_pcm_runtime *rtd = cstream->private_data; | |
211 | struct snd_soc_platform *platform = rtd->platform; | |
212 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
213 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
24894b76 | 214 | int stream; |
1245b700 | 215 | |
15e2e619 CK |
216 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); |
217 | ||
24894b76 LPC |
218 | if (cstream->direction == SND_COMPRESS_PLAYBACK) |
219 | stream = SNDRV_PCM_STREAM_PLAYBACK; | |
220 | else | |
221 | stream = SNDRV_PCM_STREAM_CAPTURE; | |
1245b700 | 222 | |
24894b76 | 223 | snd_soc_runtime_deactivate(rtd, stream); |
da18396f | 224 | |
24894b76 | 225 | snd_soc_dai_digital_mute(codec_dai, 1, cstream->direction); |
1245b700 NK |
226 | |
227 | if (!cpu_dai->active) | |
228 | cpu_dai->rate = 0; | |
229 | ||
230 | if (!codec_dai->active) | |
231 | codec_dai->rate = 0; | |
232 | ||
233 | ||
234 | if (rtd->dai_link->compr_ops && rtd->dai_link->compr_ops->shutdown) | |
235 | rtd->dai_link->compr_ops->shutdown(cstream); | |
236 | ||
237 | if (platform->driver->compr_ops && platform->driver->compr_ops->free) | |
238 | platform->driver->compr_ops->free(cstream); | |
1245b700 | 239 | |
2e622ae4 VK |
240 | if (cpu_dai->driver->cops && cpu_dai->driver->cops->shutdown) |
241 | cpu_dai->driver->cops->shutdown(cstream, cpu_dai); | |
242 | ||
1245b700 | 243 | if (cstream->direction == SND_COMPRESS_PLAYBACK) { |
208a1589 | 244 | if (snd_soc_runtime_ignore_pmdown_time(rtd)) { |
1245b700 NK |
245 | snd_soc_dapm_stream_event(rtd, |
246 | SNDRV_PCM_STREAM_PLAYBACK, | |
247 | SND_SOC_DAPM_STREAM_STOP); | |
8c3d2aa4 | 248 | } else { |
9bffb1fb | 249 | rtd->pop_wait = 1; |
3d24cfe4 MB |
250 | queue_delayed_work(system_power_efficient_wq, |
251 | &rtd->delayed_work, | |
252 | msecs_to_jiffies(rtd->pmdown_time)); | |
8c3d2aa4 | 253 | } |
1245b700 NK |
254 | } else { |
255 | /* capture streams can be powered down now */ | |
256 | snd_soc_dapm_stream_event(rtd, | |
257 | SNDRV_PCM_STREAM_CAPTURE, | |
258 | SND_SOC_DAPM_STREAM_STOP); | |
259 | } | |
260 | ||
15e2e619 | 261 | mutex_unlock(&rtd->pcm_mutex); |
1245b700 NK |
262 | return 0; |
263 | } | |
264 | ||
2a99ef0f LG |
265 | static int soc_compr_free_fe(struct snd_compr_stream *cstream) |
266 | { | |
267 | struct snd_soc_pcm_runtime *fe = cstream->private_data; | |
268 | struct snd_soc_platform *platform = fe->platform; | |
2e622ae4 | 269 | struct snd_soc_dai *cpu_dai = fe->cpu_dai; |
2a99ef0f LG |
270 | struct snd_soc_dpcm *dpcm; |
271 | int stream, ret; | |
272 | ||
273 | mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME); | |
274 | ||
24894b76 | 275 | if (cstream->direction == SND_COMPRESS_PLAYBACK) |
2a99ef0f | 276 | stream = SNDRV_PCM_STREAM_PLAYBACK; |
24894b76 | 277 | else |
2a99ef0f | 278 | stream = SNDRV_PCM_STREAM_CAPTURE; |
2a99ef0f | 279 | |
24894b76 | 280 | snd_soc_runtime_deactivate(fe, stream); |
2a99ef0f LG |
281 | |
282 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_FE; | |
283 | ||
284 | ret = dpcm_be_dai_hw_free(fe, stream); | |
285 | if (ret < 0) | |
286 | dev_err(fe->dev, "compressed hw_free failed %d\n", ret); | |
287 | ||
288 | ret = dpcm_be_dai_shutdown(fe, stream); | |
289 | ||
290 | /* mark FE's links ready to prune */ | |
291 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) | |
292 | dpcm->state = SND_SOC_DPCM_LINK_STATE_FREE; | |
293 | ||
15f6b09a | 294 | dpcm_dapm_stream_event(fe, stream, SND_SOC_DAPM_STREAM_STOP); |
2a99ef0f LG |
295 | |
296 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_CLOSE; | |
297 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO; | |
298 | ||
299 | dpcm_be_disconnect(fe, stream); | |
300 | ||
301 | fe->dpcm[stream].runtime = NULL; | |
302 | ||
303 | if (fe->dai_link->compr_ops && fe->dai_link->compr_ops->shutdown) | |
304 | fe->dai_link->compr_ops->shutdown(cstream); | |
305 | ||
306 | if (platform->driver->compr_ops && platform->driver->compr_ops->free) | |
307 | platform->driver->compr_ops->free(cstream); | |
308 | ||
2e622ae4 VK |
309 | if (cpu_dai->driver->cops && cpu_dai->driver->cops->shutdown) |
310 | cpu_dai->driver->cops->shutdown(cstream, cpu_dai); | |
311 | ||
2a99ef0f LG |
312 | mutex_unlock(&fe->card->mutex); |
313 | return 0; | |
314 | } | |
315 | ||
1245b700 NK |
316 | static int soc_compr_trigger(struct snd_compr_stream *cstream, int cmd) |
317 | { | |
318 | ||
319 | struct snd_soc_pcm_runtime *rtd = cstream->private_data; | |
320 | struct snd_soc_platform *platform = rtd->platform; | |
321 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
2e622ae4 | 322 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
1245b700 NK |
323 | int ret = 0; |
324 | ||
15e2e619 CK |
325 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); |
326 | ||
1245b700 NK |
327 | if (platform->driver->compr_ops && platform->driver->compr_ops->trigger) { |
328 | ret = platform->driver->compr_ops->trigger(cstream, cmd); | |
329 | if (ret < 0) | |
15e2e619 | 330 | goto out; |
1245b700 NK |
331 | } |
332 | ||
2e622ae4 VK |
333 | if (cpu_dai->driver->cops && cpu_dai->driver->cops->trigger) |
334 | cpu_dai->driver->cops->trigger(cstream, cmd, cpu_dai); | |
335 | ||
336 | ||
da18396f MB |
337 | switch (cmd) { |
338 | case SNDRV_PCM_TRIGGER_START: | |
339 | snd_soc_dai_digital_mute(codec_dai, 0, cstream->direction); | |
340 | break; | |
341 | case SNDRV_PCM_TRIGGER_STOP: | |
342 | snd_soc_dai_digital_mute(codec_dai, 1, cstream->direction); | |
343 | break; | |
e38b9b74 | 344 | } |
1245b700 | 345 | |
15e2e619 CK |
346 | out: |
347 | mutex_unlock(&rtd->pcm_mutex); | |
1245b700 NK |
348 | return ret; |
349 | } | |
350 | ||
2a99ef0f LG |
351 | static int soc_compr_trigger_fe(struct snd_compr_stream *cstream, int cmd) |
352 | { | |
353 | struct snd_soc_pcm_runtime *fe = cstream->private_data; | |
354 | struct snd_soc_platform *platform = fe->platform; | |
2e622ae4 | 355 | struct snd_soc_dai *cpu_dai = fe->cpu_dai; |
2a99ef0f LG |
356 | int ret = 0, stream; |
357 | ||
358 | if (cmd == SND_COMPR_TRIGGER_PARTIAL_DRAIN || | |
359 | cmd == SND_COMPR_TRIGGER_DRAIN) { | |
360 | ||
361 | if (platform->driver->compr_ops && | |
15b8e94f DC |
362 | platform->driver->compr_ops->trigger) |
363 | return platform->driver->compr_ops->trigger(cstream, | |
364 | cmd); | |
2a99ef0f LG |
365 | } |
366 | ||
367 | if (cstream->direction == SND_COMPRESS_PLAYBACK) | |
368 | stream = SNDRV_PCM_STREAM_PLAYBACK; | |
369 | else | |
370 | stream = SNDRV_PCM_STREAM_CAPTURE; | |
371 | ||
372 | ||
373 | mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME); | |
374 | ||
2e622ae4 VK |
375 | if (cpu_dai->driver->cops && cpu_dai->driver->cops->trigger) { |
376 | ret = cpu_dai->driver->cops->trigger(cstream, cmd, cpu_dai); | |
377 | if (ret < 0) | |
378 | goto out; | |
379 | } | |
380 | ||
2a99ef0f LG |
381 | if (platform->driver->compr_ops && platform->driver->compr_ops->trigger) { |
382 | ret = platform->driver->compr_ops->trigger(cstream, cmd); | |
383 | if (ret < 0) | |
384 | goto out; | |
385 | } | |
386 | ||
387 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_FE; | |
388 | ||
389 | ret = dpcm_be_dai_trigger(fe, stream, cmd); | |
390 | ||
391 | switch (cmd) { | |
392 | case SNDRV_PCM_TRIGGER_START: | |
393 | case SNDRV_PCM_TRIGGER_RESUME: | |
394 | case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: | |
395 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_START; | |
396 | break; | |
397 | case SNDRV_PCM_TRIGGER_STOP: | |
398 | case SNDRV_PCM_TRIGGER_SUSPEND: | |
399 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_STOP; | |
400 | break; | |
401 | case SNDRV_PCM_TRIGGER_PAUSE_PUSH: | |
402 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_PAUSED; | |
403 | break; | |
404 | } | |
405 | ||
406 | out: | |
407 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO; | |
408 | mutex_unlock(&fe->card->mutex); | |
409 | return ret; | |
410 | } | |
411 | ||
1245b700 NK |
412 | static int soc_compr_set_params(struct snd_compr_stream *cstream, |
413 | struct snd_compr_params *params) | |
414 | { | |
415 | struct snd_soc_pcm_runtime *rtd = cstream->private_data; | |
416 | struct snd_soc_platform *platform = rtd->platform; | |
2e622ae4 | 417 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
1245b700 NK |
418 | int ret = 0; |
419 | ||
15e2e619 CK |
420 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); |
421 | ||
1245b700 NK |
422 | /* first we call set_params for the platform driver |
423 | * this should configure the soc side | |
424 | * if the machine has compressed ops then we call that as well | |
425 | * expectation is that platform and machine will configure everything | |
426 | * for this compress path, like configuring pcm port for codec | |
427 | */ | |
2e622ae4 VK |
428 | if (cpu_dai->driver->cops && cpu_dai->driver->cops->set_params) { |
429 | ret = cpu_dai->driver->cops->set_params(cstream, params, cpu_dai); | |
430 | if (ret < 0) | |
431 | goto err; | |
432 | } | |
433 | ||
1245b700 NK |
434 | if (platform->driver->compr_ops && platform->driver->compr_ops->set_params) { |
435 | ret = platform->driver->compr_ops->set_params(cstream, params); | |
436 | if (ret < 0) | |
fa40ef20 | 437 | goto err; |
1245b700 NK |
438 | } |
439 | ||
440 | if (rtd->dai_link->compr_ops && rtd->dai_link->compr_ops->set_params) { | |
441 | ret = rtd->dai_link->compr_ops->set_params(cstream); | |
442 | if (ret < 0) | |
fa40ef20 | 443 | goto err; |
1245b700 NK |
444 | } |
445 | ||
2c071ed7 CK |
446 | if (cstream->direction == SND_COMPRESS_PLAYBACK) |
447 | snd_soc_dapm_stream_event(rtd, SNDRV_PCM_STREAM_PLAYBACK, | |
448 | SND_SOC_DAPM_STREAM_START); | |
449 | else | |
450 | snd_soc_dapm_stream_event(rtd, SNDRV_PCM_STREAM_CAPTURE, | |
451 | SND_SOC_DAPM_STREAM_START); | |
1245b700 | 452 | |
fa40ef20 CK |
453 | /* cancel any delayed stream shutdown that is pending */ |
454 | rtd->pop_wait = 0; | |
455 | mutex_unlock(&rtd->pcm_mutex); | |
456 | ||
457 | cancel_delayed_work_sync(&rtd->delayed_work); | |
458 | ||
459 | return ret; | |
460 | ||
461 | err: | |
15e2e619 | 462 | mutex_unlock(&rtd->pcm_mutex); |
1245b700 NK |
463 | return ret; |
464 | } | |
465 | ||
2a99ef0f LG |
466 | static int soc_compr_set_params_fe(struct snd_compr_stream *cstream, |
467 | struct snd_compr_params *params) | |
468 | { | |
469 | struct snd_soc_pcm_runtime *fe = cstream->private_data; | |
470 | struct snd_pcm_substream *fe_substream = fe->pcm->streams[0].substream; | |
471 | struct snd_soc_platform *platform = fe->platform; | |
2e622ae4 | 472 | struct snd_soc_dai *cpu_dai = fe->cpu_dai; |
2a99ef0f LG |
473 | int ret = 0, stream; |
474 | ||
475 | if (cstream->direction == SND_COMPRESS_PLAYBACK) | |
476 | stream = SNDRV_PCM_STREAM_PLAYBACK; | |
477 | else | |
478 | stream = SNDRV_PCM_STREAM_CAPTURE; | |
479 | ||
480 | mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME); | |
481 | ||
2e622ae4 VK |
482 | if (cpu_dai->driver->cops && cpu_dai->driver->cops->set_params) { |
483 | ret = cpu_dai->driver->cops->set_params(cstream, params, cpu_dai); | |
484 | if (ret < 0) | |
485 | goto out; | |
486 | } | |
487 | ||
2a99ef0f LG |
488 | if (platform->driver->compr_ops && platform->driver->compr_ops->set_params) { |
489 | ret = platform->driver->compr_ops->set_params(cstream, params); | |
490 | if (ret < 0) | |
491 | goto out; | |
492 | } | |
493 | ||
494 | if (fe->dai_link->compr_ops && fe->dai_link->compr_ops->set_params) { | |
495 | ret = fe->dai_link->compr_ops->set_params(cstream); | |
496 | if (ret < 0) | |
497 | goto out; | |
498 | } | |
499 | ||
500 | /* | |
501 | * Create an empty hw_params for the BE as the machine driver must | |
502 | * fix this up to match DSP decoder and ASRC configuration. | |
503 | * I.e. machine driver fixup for compressed BE is mandatory. | |
504 | */ | |
505 | memset(&fe->dpcm[fe_substream->stream].hw_params, 0, | |
506 | sizeof(struct snd_pcm_hw_params)); | |
507 | ||
508 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_FE; | |
509 | ||
510 | ret = dpcm_be_dai_hw_params(fe, stream); | |
511 | if (ret < 0) | |
512 | goto out; | |
513 | ||
514 | ret = dpcm_be_dai_prepare(fe, stream); | |
515 | if (ret < 0) | |
516 | goto out; | |
517 | ||
15f6b09a | 518 | dpcm_dapm_stream_event(fe, stream, SND_SOC_DAPM_STREAM_START); |
2a99ef0f LG |
519 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_PREPARE; |
520 | ||
521 | out: | |
522 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO; | |
523 | mutex_unlock(&fe->card->mutex); | |
524 | return ret; | |
525 | } | |
526 | ||
1245b700 NK |
527 | static int soc_compr_get_params(struct snd_compr_stream *cstream, |
528 | struct snd_codec *params) | |
529 | { | |
530 | struct snd_soc_pcm_runtime *rtd = cstream->private_data; | |
531 | struct snd_soc_platform *platform = rtd->platform; | |
2e622ae4 | 532 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
1245b700 NK |
533 | int ret = 0; |
534 | ||
15e2e619 CK |
535 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); |
536 | ||
2e622ae4 VK |
537 | if (cpu_dai->driver->cops && cpu_dai->driver->cops->get_params) { |
538 | ret = cpu_dai->driver->cops->get_params(cstream, params, cpu_dai); | |
539 | if (ret < 0) | |
540 | goto err; | |
541 | } | |
542 | ||
1245b700 NK |
543 | if (platform->driver->compr_ops && platform->driver->compr_ops->get_params) |
544 | ret = platform->driver->compr_ops->get_params(cstream, params); | |
545 | ||
2e622ae4 | 546 | err: |
15e2e619 | 547 | mutex_unlock(&rtd->pcm_mutex); |
1245b700 NK |
548 | return ret; |
549 | } | |
550 | ||
551 | static int soc_compr_get_caps(struct snd_compr_stream *cstream, | |
552 | struct snd_compr_caps *caps) | |
553 | { | |
554 | struct snd_soc_pcm_runtime *rtd = cstream->private_data; | |
555 | struct snd_soc_platform *platform = rtd->platform; | |
556 | int ret = 0; | |
557 | ||
15e2e619 CK |
558 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); |
559 | ||
1245b700 NK |
560 | if (platform->driver->compr_ops && platform->driver->compr_ops->get_caps) |
561 | ret = platform->driver->compr_ops->get_caps(cstream, caps); | |
562 | ||
15e2e619 | 563 | mutex_unlock(&rtd->pcm_mutex); |
1245b700 NK |
564 | return ret; |
565 | } | |
566 | ||
567 | static int soc_compr_get_codec_caps(struct snd_compr_stream *cstream, | |
568 | struct snd_compr_codec_caps *codec) | |
569 | { | |
570 | struct snd_soc_pcm_runtime *rtd = cstream->private_data; | |
571 | struct snd_soc_platform *platform = rtd->platform; | |
572 | int ret = 0; | |
573 | ||
15e2e619 CK |
574 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); |
575 | ||
1245b700 NK |
576 | if (platform->driver->compr_ops && platform->driver->compr_ops->get_codec_caps) |
577 | ret = platform->driver->compr_ops->get_codec_caps(cstream, codec); | |
578 | ||
15e2e619 | 579 | mutex_unlock(&rtd->pcm_mutex); |
1245b700 NK |
580 | return ret; |
581 | } | |
582 | ||
583 | static int soc_compr_ack(struct snd_compr_stream *cstream, size_t bytes) | |
584 | { | |
585 | struct snd_soc_pcm_runtime *rtd = cstream->private_data; | |
586 | struct snd_soc_platform *platform = rtd->platform; | |
2e622ae4 | 587 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
1245b700 NK |
588 | int ret = 0; |
589 | ||
15e2e619 CK |
590 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); |
591 | ||
2e622ae4 VK |
592 | if (cpu_dai->driver->cops && cpu_dai->driver->cops->ack) { |
593 | ret = cpu_dai->driver->cops->ack(cstream, bytes, cpu_dai); | |
594 | if (ret < 0) | |
595 | goto err; | |
596 | } | |
597 | ||
1245b700 NK |
598 | if (platform->driver->compr_ops && platform->driver->compr_ops->ack) |
599 | ret = platform->driver->compr_ops->ack(cstream, bytes); | |
600 | ||
2e622ae4 | 601 | err: |
15e2e619 | 602 | mutex_unlock(&rtd->pcm_mutex); |
1245b700 NK |
603 | return ret; |
604 | } | |
605 | ||
606 | static int soc_compr_pointer(struct snd_compr_stream *cstream, | |
607 | struct snd_compr_tstamp *tstamp) | |
608 | { | |
609 | struct snd_soc_pcm_runtime *rtd = cstream->private_data; | |
610 | struct snd_soc_platform *platform = rtd->platform; | |
7c9190f7 | 611 | int ret = 0; |
2e622ae4 | 612 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
1245b700 | 613 | |
15e2e619 CK |
614 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); |
615 | ||
2e622ae4 VK |
616 | if (cpu_dai->driver->cops && cpu_dai->driver->cops->pointer) |
617 | cpu_dai->driver->cops->pointer(cstream, tstamp, cpu_dai); | |
618 | ||
1245b700 | 619 | if (platform->driver->compr_ops && platform->driver->compr_ops->pointer) |
7c9190f7 | 620 | ret = platform->driver->compr_ops->pointer(cstream, tstamp); |
1245b700 | 621 | |
15e2e619 | 622 | mutex_unlock(&rtd->pcm_mutex); |
7c9190f7 | 623 | return ret; |
1245b700 NK |
624 | } |
625 | ||
1f88eb0f | 626 | static int soc_compr_copy(struct snd_compr_stream *cstream, |
4daf891c | 627 | char __user *buf, size_t count) |
1f88eb0f CK |
628 | { |
629 | struct snd_soc_pcm_runtime *rtd = cstream->private_data; | |
630 | struct snd_soc_platform *platform = rtd->platform; | |
631 | int ret = 0; | |
632 | ||
633 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); | |
634 | ||
635 | if (platform->driver->compr_ops && platform->driver->compr_ops->copy) | |
636 | ret = platform->driver->compr_ops->copy(cstream, buf, count); | |
637 | ||
638 | mutex_unlock(&rtd->pcm_mutex); | |
639 | return ret; | |
640 | } | |
641 | ||
02bd90e8 | 642 | static int soc_compr_set_metadata(struct snd_compr_stream *cstream, |
36953d98 JK |
643 | struct snd_compr_metadata *metadata) |
644 | { | |
645 | struct snd_soc_pcm_runtime *rtd = cstream->private_data; | |
646 | struct snd_soc_platform *platform = rtd->platform; | |
2e622ae4 | 647 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
36953d98 JK |
648 | int ret = 0; |
649 | ||
2e622ae4 VK |
650 | if (cpu_dai->driver->cops && cpu_dai->driver->cops->set_metadata) { |
651 | ret = cpu_dai->driver->cops->set_metadata(cstream, metadata, cpu_dai); | |
652 | if (ret < 0) | |
653 | return ret; | |
654 | } | |
655 | ||
36953d98 JK |
656 | if (platform->driver->compr_ops && platform->driver->compr_ops->set_metadata) |
657 | ret = platform->driver->compr_ops->set_metadata(cstream, metadata); | |
658 | ||
659 | return ret; | |
660 | } | |
661 | ||
02bd90e8 | 662 | static int soc_compr_get_metadata(struct snd_compr_stream *cstream, |
36953d98 JK |
663 | struct snd_compr_metadata *metadata) |
664 | { | |
665 | struct snd_soc_pcm_runtime *rtd = cstream->private_data; | |
666 | struct snd_soc_platform *platform = rtd->platform; | |
2e622ae4 | 667 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
36953d98 JK |
668 | int ret = 0; |
669 | ||
2e622ae4 VK |
670 | if (cpu_dai->driver->cops && cpu_dai->driver->cops->get_metadata) { |
671 | ret = cpu_dai->driver->cops->get_metadata(cstream, metadata, cpu_dai); | |
672 | if (ret < 0) | |
673 | return ret; | |
674 | } | |
675 | ||
36953d98 JK |
676 | if (platform->driver->compr_ops && platform->driver->compr_ops->get_metadata) |
677 | ret = platform->driver->compr_ops->get_metadata(cstream, metadata); | |
678 | ||
679 | return ret; | |
680 | } | |
2a99ef0f | 681 | |
1245b700 NK |
682 | /* ASoC Compress operations */ |
683 | static struct snd_compr_ops soc_compr_ops = { | |
684 | .open = soc_compr_open, | |
685 | .free = soc_compr_free, | |
686 | .set_params = soc_compr_set_params, | |
02bd90e8 VK |
687 | .set_metadata = soc_compr_set_metadata, |
688 | .get_metadata = soc_compr_get_metadata, | |
1245b700 NK |
689 | .get_params = soc_compr_get_params, |
690 | .trigger = soc_compr_trigger, | |
691 | .pointer = soc_compr_pointer, | |
692 | .ack = soc_compr_ack, | |
693 | .get_caps = soc_compr_get_caps, | |
694 | .get_codec_caps = soc_compr_get_codec_caps | |
695 | }; | |
696 | ||
2a99ef0f LG |
697 | /* ASoC Dynamic Compress operations */ |
698 | static struct snd_compr_ops soc_compr_dyn_ops = { | |
699 | .open = soc_compr_open_fe, | |
700 | .free = soc_compr_free_fe, | |
701 | .set_params = soc_compr_set_params_fe, | |
702 | .get_params = soc_compr_get_params, | |
703 | .set_metadata = soc_compr_set_metadata, | |
704 | .get_metadata = soc_compr_get_metadata, | |
705 | .trigger = soc_compr_trigger_fe, | |
706 | .pointer = soc_compr_pointer, | |
707 | .ack = soc_compr_ack, | |
708 | .get_caps = soc_compr_get_caps, | |
709 | .get_codec_caps = soc_compr_get_codec_caps | |
710 | }; | |
711 | ||
6f0c4226 JY |
712 | /** |
713 | * snd_soc_new_compress - create a new compress. | |
714 | * | |
715 | * @rtd: The runtime for which we will create compress | |
716 | * @num: the device index number (zero based - shared with normal PCMs) | |
717 | * | |
718 | * Return: 0 for success, else error. | |
719 | */ | |
720 | int snd_soc_new_compress(struct snd_soc_pcm_runtime *rtd, int num) | |
1245b700 NK |
721 | { |
722 | struct snd_soc_codec *codec = rtd->codec; | |
1f88eb0f | 723 | struct snd_soc_platform *platform = rtd->platform; |
1245b700 NK |
724 | struct snd_soc_dai *codec_dai = rtd->codec_dai; |
725 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
726 | struct snd_compr *compr; | |
2a99ef0f | 727 | struct snd_pcm *be_pcm; |
1245b700 NK |
728 | char new_name[64]; |
729 | int ret = 0, direction = 0; | |
a1068045 | 730 | int playback = 0, capture = 0; |
1245b700 | 731 | |
8151d5e6 BC |
732 | if (rtd->num_codecs > 1) { |
733 | dev_err(rtd->card->dev, "Multicodec not supported for compressed stream\n"); | |
734 | return -EINVAL; | |
735 | } | |
736 | ||
1245b700 NK |
737 | /* check client and interface hw capabilities */ |
738 | snprintf(new_name, sizeof(new_name), "%s %s-%d", | |
739 | rtd->dai_link->stream_name, codec_dai->name, num); | |
daa2db59 CK |
740 | |
741 | if (codec_dai->driver->playback.channels_min) | |
a1068045 VK |
742 | playback = 1; |
743 | if (codec_dai->driver->capture.channels_min) | |
744 | capture = 1; | |
745 | ||
746 | capture = capture && cpu_dai->driver->capture.channels_min; | |
747 | playback = playback && cpu_dai->driver->playback.channels_min; | |
748 | ||
749 | /* | |
750 | * Compress devices are unidirectional so only one of the directions | |
751 | * should be set, check for that (xor) | |
752 | */ | |
753 | if (playback + capture != 1) { | |
754 | dev_err(rtd->card->dev, "Invalid direction for compress P %d, C %d\n", | |
755 | playback, capture); | |
756 | return -EINVAL; | |
757 | } | |
758 | ||
759 | if(playback) | |
daa2db59 | 760 | direction = SND_COMPRESS_PLAYBACK; |
daa2db59 | 761 | else |
a1068045 | 762 | direction = SND_COMPRESS_CAPTURE; |
daa2db59 | 763 | |
1245b700 NK |
764 | compr = kzalloc(sizeof(*compr), GFP_KERNEL); |
765 | if (compr == NULL) { | |
766 | snd_printk(KERN_ERR "Cannot allocate compr\n"); | |
767 | return -ENOMEM; | |
768 | } | |
769 | ||
1f88eb0f CK |
770 | compr->ops = devm_kzalloc(rtd->card->dev, sizeof(soc_compr_ops), |
771 | GFP_KERNEL); | |
772 | if (compr->ops == NULL) { | |
773 | dev_err(rtd->card->dev, "Cannot allocate compressed ops\n"); | |
774 | ret = -ENOMEM; | |
775 | goto compr_err; | |
776 | } | |
2a99ef0f LG |
777 | |
778 | if (rtd->dai_link->dynamic) { | |
779 | snprintf(new_name, sizeof(new_name), "(%s)", | |
780 | rtd->dai_link->stream_name); | |
781 | ||
782 | ret = snd_pcm_new_internal(rtd->card->snd_card, new_name, num, | |
d3268a40 QY |
783 | rtd->dai_link->dpcm_playback, |
784 | rtd->dai_link->dpcm_capture, &be_pcm); | |
2a99ef0f LG |
785 | if (ret < 0) { |
786 | dev_err(rtd->card->dev, "ASoC: can't create compressed for %s\n", | |
787 | rtd->dai_link->name); | |
788 | goto compr_err; | |
789 | } | |
790 | ||
791 | rtd->pcm = be_pcm; | |
792 | rtd->fe_compr = 1; | |
d3268a40 QY |
793 | if (rtd->dai_link->dpcm_playback) |
794 | be_pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream->private_data = rtd; | |
795 | else if (rtd->dai_link->dpcm_capture) | |
796 | be_pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream->private_data = rtd; | |
2a99ef0f LG |
797 | memcpy(compr->ops, &soc_compr_dyn_ops, sizeof(soc_compr_dyn_ops)); |
798 | } else | |
799 | memcpy(compr->ops, &soc_compr_ops, sizeof(soc_compr_ops)); | |
1f88eb0f CK |
800 | |
801 | /* Add copy callback for not memory mapped DSPs */ | |
802 | if (platform->driver->compr_ops && platform->driver->compr_ops->copy) | |
803 | compr->ops->copy = soc_compr_copy; | |
804 | ||
1245b700 | 805 | mutex_init(&compr->lock); |
e5241a8c RF |
806 | |
807 | snprintf(new_name, sizeof(new_name), "%s %s-%d", | |
808 | rtd->dai_link->stream_name, | |
809 | rtd->codec_dai->name, num); | |
810 | ||
811 | ret = snd_compress_new(rtd->card->snd_card, num, direction, | |
812 | new_name, compr); | |
1245b700 NK |
813 | if (ret < 0) { |
814 | pr_err("compress asoc: can't create compress for codec %s\n", | |
f4333203 | 815 | codec->component.name); |
1f88eb0f | 816 | goto compr_err; |
1245b700 NK |
817 | } |
818 | ||
202c8f70 CK |
819 | /* DAPM dai link stream work */ |
820 | INIT_DELAYED_WORK(&rtd->delayed_work, close_delayed_work); | |
821 | ||
1245b700 NK |
822 | rtd->compr = compr; |
823 | compr->private_data = rtd; | |
824 | ||
825 | printk(KERN_INFO "compress asoc: %s <-> %s mapping ok\n", codec_dai->name, | |
826 | cpu_dai->name); | |
827 | return ret; | |
1f88eb0f CK |
828 | |
829 | compr_err: | |
830 | kfree(compr); | |
831 | return ret; | |
1245b700 | 832 | } |
6f0c4226 | 833 | EXPORT_SYMBOL_GPL(snd_soc_new_compress); |