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Commit | Line | Data |
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ddee627c LG |
1 | /* |
2 | * soc-pcm.c -- ALSA SoC PCM | |
3 | * | |
4 | * Copyright 2005 Wolfson Microelectronics PLC. | |
5 | * Copyright 2005 Openedhand Ltd. | |
6 | * Copyright (C) 2010 Slimlogic Ltd. | |
7 | * Copyright (C) 2010 Texas Instruments Inc. | |
8 | * | |
9 | * Authors: Liam Girdwood <lrg@ti.com> | |
c8dd1fec | 10 | * Mark Brown <broonie@opensource.wolfsonmicro.com> |
ddee627c LG |
11 | * |
12 | * This program is free software; you can redistribute it and/or modify it | |
13 | * under the terms of the GNU General Public License as published by the | |
14 | * Free Software Foundation; either version 2 of the License, or (at your | |
15 | * option) any later version. | |
16 | * | |
17 | */ | |
18 | ||
19 | #include <linux/kernel.h> | |
20 | #include <linux/init.h> | |
21 | #include <linux/delay.h> | |
988e8cc4 | 22 | #include <linux/pinctrl/consumer.h> |
d6652ef8 | 23 | #include <linux/pm_runtime.h> |
ddee627c LG |
24 | #include <linux/slab.h> |
25 | #include <linux/workqueue.h> | |
01d7584c | 26 | #include <linux/export.h> |
f86dcef8 | 27 | #include <linux/debugfs.h> |
ddee627c LG |
28 | #include <sound/core.h> |
29 | #include <sound/pcm.h> | |
30 | #include <sound/pcm_params.h> | |
31 | #include <sound/soc.h> | |
01d7584c | 32 | #include <sound/soc-dpcm.h> |
ddee627c LG |
33 | #include <sound/initval.h> |
34 | ||
01d7584c LG |
35 | #define DPCM_MAX_BE_USERS 8 |
36 | ||
cde79035 RW |
37 | /* |
38 | * snd_soc_dai_stream_valid() - check if a DAI supports the given stream | |
39 | * | |
40 | * Returns true if the DAI supports the indicated stream type. | |
41 | */ | |
42 | static bool snd_soc_dai_stream_valid(struct snd_soc_dai *dai, int stream) | |
43 | { | |
44 | struct snd_soc_pcm_stream *codec_stream; | |
45 | ||
46 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) | |
47 | codec_stream = &dai->driver->playback; | |
48 | else | |
49 | codec_stream = &dai->driver->capture; | |
50 | ||
51 | /* If the codec specifies any rate at all, it supports the stream. */ | |
52 | return codec_stream->rates; | |
53 | } | |
54 | ||
24894b76 LPC |
55 | /** |
56 | * snd_soc_runtime_activate() - Increment active count for PCM runtime components | |
57 | * @rtd: ASoC PCM runtime that is activated | |
58 | * @stream: Direction of the PCM stream | |
59 | * | |
60 | * Increments the active count for all the DAIs and components attached to a PCM | |
61 | * runtime. Should typically be called when a stream is opened. | |
62 | * | |
63 | * Must be called with the rtd->pcm_mutex being held | |
64 | */ | |
65 | void snd_soc_runtime_activate(struct snd_soc_pcm_runtime *rtd, int stream) | |
66 | { | |
67 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
2e5894d7 | 68 | int i; |
24894b76 LPC |
69 | |
70 | lockdep_assert_held(&rtd->pcm_mutex); | |
71 | ||
72 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) { | |
73 | cpu_dai->playback_active++; | |
2e5894d7 BC |
74 | for (i = 0; i < rtd->num_codecs; i++) |
75 | rtd->codec_dais[i]->playback_active++; | |
24894b76 LPC |
76 | } else { |
77 | cpu_dai->capture_active++; | |
2e5894d7 BC |
78 | for (i = 0; i < rtd->num_codecs; i++) |
79 | rtd->codec_dais[i]->capture_active++; | |
24894b76 LPC |
80 | } |
81 | ||
82 | cpu_dai->active++; | |
cdde4ccb | 83 | cpu_dai->component->active++; |
2e5894d7 BC |
84 | for (i = 0; i < rtd->num_codecs; i++) { |
85 | rtd->codec_dais[i]->active++; | |
86 | rtd->codec_dais[i]->component->active++; | |
87 | } | |
24894b76 LPC |
88 | } |
89 | ||
90 | /** | |
91 | * snd_soc_runtime_deactivate() - Decrement active count for PCM runtime components | |
92 | * @rtd: ASoC PCM runtime that is deactivated | |
93 | * @stream: Direction of the PCM stream | |
94 | * | |
95 | * Decrements the active count for all the DAIs and components attached to a PCM | |
96 | * runtime. Should typically be called when a stream is closed. | |
97 | * | |
98 | * Must be called with the rtd->pcm_mutex being held | |
99 | */ | |
100 | void snd_soc_runtime_deactivate(struct snd_soc_pcm_runtime *rtd, int stream) | |
101 | { | |
102 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
2e5894d7 | 103 | int i; |
24894b76 LPC |
104 | |
105 | lockdep_assert_held(&rtd->pcm_mutex); | |
106 | ||
107 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) { | |
108 | cpu_dai->playback_active--; | |
2e5894d7 BC |
109 | for (i = 0; i < rtd->num_codecs; i++) |
110 | rtd->codec_dais[i]->playback_active--; | |
24894b76 LPC |
111 | } else { |
112 | cpu_dai->capture_active--; | |
2e5894d7 BC |
113 | for (i = 0; i < rtd->num_codecs; i++) |
114 | rtd->codec_dais[i]->capture_active--; | |
24894b76 LPC |
115 | } |
116 | ||
117 | cpu_dai->active--; | |
cdde4ccb | 118 | cpu_dai->component->active--; |
2e5894d7 BC |
119 | for (i = 0; i < rtd->num_codecs; i++) { |
120 | rtd->codec_dais[i]->component->active--; | |
121 | rtd->codec_dais[i]->active--; | |
122 | } | |
24894b76 LPC |
123 | } |
124 | ||
208a1589 LPC |
125 | /** |
126 | * snd_soc_runtime_ignore_pmdown_time() - Check whether to ignore the power down delay | |
127 | * @rtd: The ASoC PCM runtime that should be checked. | |
128 | * | |
129 | * This function checks whether the power down delay should be ignored for a | |
130 | * specific PCM runtime. Returns true if the delay is 0, if it the DAI link has | |
131 | * been configured to ignore the delay, or if none of the components benefits | |
132 | * from having the delay. | |
133 | */ | |
134 | bool snd_soc_runtime_ignore_pmdown_time(struct snd_soc_pcm_runtime *rtd) | |
135 | { | |
2e5894d7 BC |
136 | int i; |
137 | bool ignore = true; | |
138 | ||
208a1589 LPC |
139 | if (!rtd->pmdown_time || rtd->dai_link->ignore_pmdown_time) |
140 | return true; | |
141 | ||
2e5894d7 BC |
142 | for (i = 0; i < rtd->num_codecs; i++) |
143 | ignore &= rtd->codec_dais[i]->component->ignore_pmdown_time; | |
144 | ||
145 | return rtd->cpu_dai->component->ignore_pmdown_time && ignore; | |
208a1589 LPC |
146 | } |
147 | ||
90996f43 LPC |
148 | /** |
149 | * snd_soc_set_runtime_hwparams - set the runtime hardware parameters | |
150 | * @substream: the pcm substream | |
151 | * @hw: the hardware parameters | |
152 | * | |
153 | * Sets the substream runtime hardware parameters. | |
154 | */ | |
155 | int snd_soc_set_runtime_hwparams(struct snd_pcm_substream *substream, | |
156 | const struct snd_pcm_hardware *hw) | |
157 | { | |
158 | struct snd_pcm_runtime *runtime = substream->runtime; | |
159 | runtime->hw.info = hw->info; | |
160 | runtime->hw.formats = hw->formats; | |
161 | runtime->hw.period_bytes_min = hw->period_bytes_min; | |
162 | runtime->hw.period_bytes_max = hw->period_bytes_max; | |
163 | runtime->hw.periods_min = hw->periods_min; | |
164 | runtime->hw.periods_max = hw->periods_max; | |
165 | runtime->hw.buffer_bytes_max = hw->buffer_bytes_max; | |
166 | runtime->hw.fifo_size = hw->fifo_size; | |
167 | return 0; | |
168 | } | |
169 | EXPORT_SYMBOL_GPL(snd_soc_set_runtime_hwparams); | |
170 | ||
01d7584c | 171 | /* DPCM stream event, send event to FE and all active BEs. */ |
23607025 | 172 | int dpcm_dapm_stream_event(struct snd_soc_pcm_runtime *fe, int dir, |
01d7584c LG |
173 | int event) |
174 | { | |
175 | struct snd_soc_dpcm *dpcm; | |
176 | ||
177 | list_for_each_entry(dpcm, &fe->dpcm[dir].be_clients, list_be) { | |
178 | ||
179 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
180 | ||
103d84a3 | 181 | dev_dbg(be->dev, "ASoC: BE %s event %d dir %d\n", |
01d7584c LG |
182 | be->dai_link->name, event, dir); |
183 | ||
184 | snd_soc_dapm_stream_event(be, dir, event); | |
185 | } | |
186 | ||
187 | snd_soc_dapm_stream_event(fe, dir, event); | |
188 | ||
189 | return 0; | |
190 | } | |
191 | ||
17841020 DA |
192 | static int soc_pcm_apply_symmetry(struct snd_pcm_substream *substream, |
193 | struct snd_soc_dai *soc_dai) | |
ddee627c LG |
194 | { |
195 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
ddee627c LG |
196 | int ret; |
197 | ||
3635bf09 NC |
198 | if (soc_dai->rate && (soc_dai->driver->symmetric_rates || |
199 | rtd->dai_link->symmetric_rates)) { | |
200 | dev_dbg(soc_dai->dev, "ASoC: Symmetry forces %dHz rate\n", | |
201 | soc_dai->rate); | |
202 | ||
203 | ret = snd_pcm_hw_constraint_minmax(substream->runtime, | |
204 | SNDRV_PCM_HW_PARAM_RATE, | |
205 | soc_dai->rate, soc_dai->rate); | |
206 | if (ret < 0) { | |
207 | dev_err(soc_dai->dev, | |
208 | "ASoC: Unable to apply rate constraint: %d\n", | |
209 | ret); | |
210 | return ret; | |
211 | } | |
212 | } | |
ddee627c | 213 | |
3635bf09 NC |
214 | if (soc_dai->channels && (soc_dai->driver->symmetric_channels || |
215 | rtd->dai_link->symmetric_channels)) { | |
216 | dev_dbg(soc_dai->dev, "ASoC: Symmetry forces %d channel(s)\n", | |
217 | soc_dai->channels); | |
ddee627c | 218 | |
3635bf09 NC |
219 | ret = snd_pcm_hw_constraint_minmax(substream->runtime, |
220 | SNDRV_PCM_HW_PARAM_CHANNELS, | |
221 | soc_dai->channels, | |
222 | soc_dai->channels); | |
223 | if (ret < 0) { | |
224 | dev_err(soc_dai->dev, | |
225 | "ASoC: Unable to apply channel symmetry constraint: %d\n", | |
226 | ret); | |
227 | return ret; | |
228 | } | |
ddee627c LG |
229 | } |
230 | ||
3635bf09 NC |
231 | if (soc_dai->sample_bits && (soc_dai->driver->symmetric_samplebits || |
232 | rtd->dai_link->symmetric_samplebits)) { | |
233 | dev_dbg(soc_dai->dev, "ASoC: Symmetry forces %d sample bits\n", | |
234 | soc_dai->sample_bits); | |
ddee627c | 235 | |
3635bf09 NC |
236 | ret = snd_pcm_hw_constraint_minmax(substream->runtime, |
237 | SNDRV_PCM_HW_PARAM_SAMPLE_BITS, | |
238 | soc_dai->sample_bits, | |
239 | soc_dai->sample_bits); | |
240 | if (ret < 0) { | |
241 | dev_err(soc_dai->dev, | |
242 | "ASoC: Unable to apply sample bits symmetry constraint: %d\n", | |
243 | ret); | |
244 | return ret; | |
245 | } | |
ddee627c LG |
246 | } |
247 | ||
248 | return 0; | |
249 | } | |
250 | ||
3635bf09 NC |
251 | static int soc_pcm_params_symmetry(struct snd_pcm_substream *substream, |
252 | struct snd_pcm_hw_params *params) | |
253 | { | |
254 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
255 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
2e5894d7 | 256 | unsigned int rate, channels, sample_bits, symmetry, i; |
3635bf09 NC |
257 | |
258 | rate = params_rate(params); | |
259 | channels = params_channels(params); | |
260 | sample_bits = snd_pcm_format_physical_width(params_format(params)); | |
261 | ||
262 | /* reject unmatched parameters when applying symmetry */ | |
263 | symmetry = cpu_dai->driver->symmetric_rates || | |
3635bf09 | 264 | rtd->dai_link->symmetric_rates; |
2e5894d7 BC |
265 | |
266 | for (i = 0; i < rtd->num_codecs; i++) | |
267 | symmetry |= rtd->codec_dais[i]->driver->symmetric_rates; | |
268 | ||
3635bf09 NC |
269 | if (symmetry && cpu_dai->rate && cpu_dai->rate != rate) { |
270 | dev_err(rtd->dev, "ASoC: unmatched rate symmetry: %d - %d\n", | |
271 | cpu_dai->rate, rate); | |
272 | return -EINVAL; | |
ddee627c LG |
273 | } |
274 | ||
3635bf09 | 275 | symmetry = cpu_dai->driver->symmetric_channels || |
3635bf09 | 276 | rtd->dai_link->symmetric_channels; |
2e5894d7 BC |
277 | |
278 | for (i = 0; i < rtd->num_codecs; i++) | |
279 | symmetry |= rtd->codec_dais[i]->driver->symmetric_channels; | |
280 | ||
3635bf09 NC |
281 | if (symmetry && cpu_dai->channels && cpu_dai->channels != channels) { |
282 | dev_err(rtd->dev, "ASoC: unmatched channel symmetry: %d - %d\n", | |
283 | cpu_dai->channels, channels); | |
284 | return -EINVAL; | |
285 | } | |
ddee627c | 286 | |
3635bf09 | 287 | symmetry = cpu_dai->driver->symmetric_samplebits || |
3635bf09 | 288 | rtd->dai_link->symmetric_samplebits; |
2e5894d7 BC |
289 | |
290 | for (i = 0; i < rtd->num_codecs; i++) | |
291 | symmetry |= rtd->codec_dais[i]->driver->symmetric_samplebits; | |
292 | ||
3635bf09 NC |
293 | if (symmetry && cpu_dai->sample_bits && cpu_dai->sample_bits != sample_bits) { |
294 | dev_err(rtd->dev, "ASoC: unmatched sample bits symmetry: %d - %d\n", | |
295 | cpu_dai->sample_bits, sample_bits); | |
296 | return -EINVAL; | |
ddee627c LG |
297 | } |
298 | ||
299 | return 0; | |
300 | } | |
301 | ||
62e5f676 LPC |
302 | static bool soc_pcm_has_symmetry(struct snd_pcm_substream *substream) |
303 | { | |
304 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
305 | struct snd_soc_dai_driver *cpu_driver = rtd->cpu_dai->driver; | |
62e5f676 | 306 | struct snd_soc_dai_link *link = rtd->dai_link; |
2e5894d7 | 307 | unsigned int symmetry, i; |
62e5f676 | 308 | |
2e5894d7 BC |
309 | symmetry = cpu_driver->symmetric_rates || link->symmetric_rates || |
310 | cpu_driver->symmetric_channels || link->symmetric_channels || | |
311 | cpu_driver->symmetric_samplebits || link->symmetric_samplebits; | |
62e5f676 | 312 | |
2e5894d7 BC |
313 | for (i = 0; i < rtd->num_codecs; i++) |
314 | symmetry = symmetry || | |
315 | rtd->codec_dais[i]->driver->symmetric_rates || | |
316 | rtd->codec_dais[i]->driver->symmetric_channels || | |
317 | rtd->codec_dais[i]->driver->symmetric_samplebits; | |
318 | ||
319 | return symmetry; | |
62e5f676 LPC |
320 | } |
321 | ||
2e5894d7 | 322 | static void soc_pcm_set_msb(struct snd_pcm_substream *substream, int bits) |
58ba9b25 | 323 | { |
2e5894d7 | 324 | struct snd_soc_pcm_runtime *rtd = substream->private_data; |
c6068d3a | 325 | int ret; |
58ba9b25 MB |
326 | |
327 | if (!bits) | |
328 | return; | |
329 | ||
0e2a3751 LPC |
330 | ret = snd_pcm_hw_constraint_msbits(substream->runtime, 0, 0, bits); |
331 | if (ret != 0) | |
332 | dev_warn(rtd->dev, "ASoC: Failed to set MSB %d: %d\n", | |
333 | bits, ret); | |
58ba9b25 MB |
334 | } |
335 | ||
c8dd1fec BC |
336 | static void soc_pcm_apply_msb(struct snd_pcm_substream *substream) |
337 | { | |
338 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
339 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
2e5894d7 BC |
340 | struct snd_soc_dai *codec_dai; |
341 | int i; | |
c8dd1fec BC |
342 | unsigned int bits = 0, cpu_bits; |
343 | ||
344 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { | |
2e5894d7 BC |
345 | for (i = 0; i < rtd->num_codecs; i++) { |
346 | codec_dai = rtd->codec_dais[i]; | |
347 | if (codec_dai->driver->playback.sig_bits == 0) { | |
348 | bits = 0; | |
349 | break; | |
350 | } | |
351 | bits = max(codec_dai->driver->playback.sig_bits, bits); | |
352 | } | |
c8dd1fec BC |
353 | cpu_bits = cpu_dai->driver->playback.sig_bits; |
354 | } else { | |
2e5894d7 BC |
355 | for (i = 0; i < rtd->num_codecs; i++) { |
356 | codec_dai = rtd->codec_dais[i]; | |
5e63dfcc | 357 | if (codec_dai->driver->capture.sig_bits == 0) { |
2e5894d7 BC |
358 | bits = 0; |
359 | break; | |
360 | } | |
361 | bits = max(codec_dai->driver->capture.sig_bits, bits); | |
362 | } | |
c8dd1fec BC |
363 | cpu_bits = cpu_dai->driver->capture.sig_bits; |
364 | } | |
365 | ||
2e5894d7 BC |
366 | soc_pcm_set_msb(substream, bits); |
367 | soc_pcm_set_msb(substream, cpu_bits); | |
c8dd1fec BC |
368 | } |
369 | ||
2e5894d7 | 370 | static void soc_pcm_init_runtime_hw(struct snd_pcm_substream *substream) |
bd477c31 | 371 | { |
2e5894d7 | 372 | struct snd_pcm_runtime *runtime = substream->runtime; |
78e45c99 | 373 | struct snd_pcm_hardware *hw = &runtime->hw; |
2e5894d7 BC |
374 | struct snd_soc_pcm_runtime *rtd = substream->private_data; |
375 | struct snd_soc_dai_driver *cpu_dai_drv = rtd->cpu_dai->driver; | |
376 | struct snd_soc_dai_driver *codec_dai_drv; | |
377 | struct snd_soc_pcm_stream *codec_stream; | |
378 | struct snd_soc_pcm_stream *cpu_stream; | |
379 | unsigned int chan_min = 0, chan_max = UINT_MAX; | |
380 | unsigned int rate_min = 0, rate_max = UINT_MAX; | |
381 | unsigned int rates = UINT_MAX; | |
382 | u64 formats = ULLONG_MAX; | |
383 | int i; | |
78e45c99 | 384 | |
2e5894d7 BC |
385 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) |
386 | cpu_stream = &cpu_dai_drv->playback; | |
16d7ea91 | 387 | else |
2e5894d7 | 388 | cpu_stream = &cpu_dai_drv->capture; |
78e45c99 | 389 | |
2e5894d7 BC |
390 | /* first calculate min/max only for CODECs in the DAI link */ |
391 | for (i = 0; i < rtd->num_codecs; i++) { | |
cde79035 RW |
392 | |
393 | /* | |
394 | * Skip CODECs which don't support the current stream type. | |
395 | * Otherwise, since the rate, channel, and format values will | |
396 | * zero in that case, we would have no usable settings left, | |
397 | * causing the resulting setup to fail. | |
398 | * At least one CODEC should match, otherwise we should have | |
399 | * bailed out on a higher level, since there would be no | |
400 | * CODEC to support the transfer direction in that case. | |
401 | */ | |
402 | if (!snd_soc_dai_stream_valid(rtd->codec_dais[i], | |
403 | substream->stream)) | |
404 | continue; | |
405 | ||
2e5894d7 BC |
406 | codec_dai_drv = rtd->codec_dais[i]->driver; |
407 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) | |
408 | codec_stream = &codec_dai_drv->playback; | |
409 | else | |
410 | codec_stream = &codec_dai_drv->capture; | |
411 | chan_min = max(chan_min, codec_stream->channels_min); | |
412 | chan_max = min(chan_max, codec_stream->channels_max); | |
413 | rate_min = max(rate_min, codec_stream->rate_min); | |
414 | rate_max = min_not_zero(rate_max, codec_stream->rate_max); | |
415 | formats &= codec_stream->formats; | |
416 | rates = snd_pcm_rate_mask_intersect(codec_stream->rates, rates); | |
417 | } | |
418 | ||
419 | /* | |
420 | * chan min/max cannot be enforced if there are multiple CODEC DAIs | |
421 | * connected to a single CPU DAI, use CPU DAI's directly and let | |
422 | * channel allocation be fixed up later | |
423 | */ | |
424 | if (rtd->num_codecs > 1) { | |
425 | chan_min = cpu_stream->channels_min; | |
426 | chan_max = cpu_stream->channels_max; | |
427 | } | |
428 | ||
429 | hw->channels_min = max(chan_min, cpu_stream->channels_min); | |
430 | hw->channels_max = min(chan_max, cpu_stream->channels_max); | |
431 | if (hw->formats) | |
432 | hw->formats &= formats & cpu_stream->formats; | |
433 | else | |
434 | hw->formats = formats & cpu_stream->formats; | |
435 | hw->rates = snd_pcm_rate_mask_intersect(rates, cpu_stream->rates); | |
78e45c99 LPC |
436 | |
437 | snd_pcm_limit_hw_rates(runtime); | |
438 | ||
439 | hw->rate_min = max(hw->rate_min, cpu_stream->rate_min); | |
2e5894d7 | 440 | hw->rate_min = max(hw->rate_min, rate_min); |
78e45c99 | 441 | hw->rate_max = min_not_zero(hw->rate_max, cpu_stream->rate_max); |
2e5894d7 | 442 | hw->rate_max = min_not_zero(hw->rate_max, rate_max); |
bd477c31 LPC |
443 | } |
444 | ||
ddee627c LG |
445 | /* |
446 | * Called by ALSA when a PCM substream is opened, the runtime->hw record is | |
447 | * then initialized and any private data can be allocated. This also calls | |
448 | * startup for the cpu DAI, platform, machine and codec DAI. | |
449 | */ | |
450 | static int soc_pcm_open(struct snd_pcm_substream *substream) | |
451 | { | |
452 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
453 | struct snd_pcm_runtime *runtime = substream->runtime; | |
454 | struct snd_soc_platform *platform = rtd->platform; | |
455 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
2e5894d7 BC |
456 | struct snd_soc_dai *codec_dai; |
457 | const char *codec_dai_name = "multicodec"; | |
458 | int i, ret = 0; | |
ddee627c | 459 | |
988e8cc4 | 460 | pinctrl_pm_select_default_state(cpu_dai->dev); |
2e5894d7 BC |
461 | for (i = 0; i < rtd->num_codecs; i++) |
462 | pinctrl_pm_select_default_state(rtd->codec_dais[i]->dev); | |
d6652ef8 | 463 | pm_runtime_get_sync(cpu_dai->dev); |
2e5894d7 BC |
464 | for (i = 0; i < rtd->num_codecs; i++) |
465 | pm_runtime_get_sync(rtd->codec_dais[i]->dev); | |
d6652ef8 MB |
466 | pm_runtime_get_sync(platform->dev); |
467 | ||
b8c0dab9 | 468 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); |
ddee627c LG |
469 | |
470 | /* startup the audio subsystem */ | |
c5914b0a | 471 | if (cpu_dai->driver->ops && cpu_dai->driver->ops->startup) { |
ddee627c LG |
472 | ret = cpu_dai->driver->ops->startup(substream, cpu_dai); |
473 | if (ret < 0) { | |
103d84a3 LG |
474 | dev_err(cpu_dai->dev, "ASoC: can't open interface" |
475 | " %s: %d\n", cpu_dai->name, ret); | |
ddee627c LG |
476 | goto out; |
477 | } | |
478 | } | |
479 | ||
480 | if (platform->driver->ops && platform->driver->ops->open) { | |
481 | ret = platform->driver->ops->open(substream); | |
482 | if (ret < 0) { | |
103d84a3 | 483 | dev_err(platform->dev, "ASoC: can't open platform" |
f4333203 | 484 | " %s: %d\n", platform->component.name, ret); |
ddee627c LG |
485 | goto platform_err; |
486 | } | |
487 | } | |
488 | ||
2e5894d7 BC |
489 | for (i = 0; i < rtd->num_codecs; i++) { |
490 | codec_dai = rtd->codec_dais[i]; | |
491 | if (codec_dai->driver->ops && codec_dai->driver->ops->startup) { | |
492 | ret = codec_dai->driver->ops->startup(substream, | |
493 | codec_dai); | |
494 | if (ret < 0) { | |
495 | dev_err(codec_dai->dev, | |
496 | "ASoC: can't open codec %s: %d\n", | |
497 | codec_dai->name, ret); | |
498 | goto codec_dai_err; | |
499 | } | |
ddee627c | 500 | } |
2e5894d7 BC |
501 | |
502 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) | |
503 | codec_dai->tx_mask = 0; | |
504 | else | |
505 | codec_dai->rx_mask = 0; | |
ddee627c LG |
506 | } |
507 | ||
508 | if (rtd->dai_link->ops && rtd->dai_link->ops->startup) { | |
509 | ret = rtd->dai_link->ops->startup(substream); | |
510 | if (ret < 0) { | |
103d84a3 | 511 | pr_err("ASoC: %s startup failed: %d\n", |
25bfe662 | 512 | rtd->dai_link->name, ret); |
ddee627c LG |
513 | goto machine_err; |
514 | } | |
515 | } | |
516 | ||
01d7584c LG |
517 | /* Dynamic PCM DAI links compat checks use dynamic capabilities */ |
518 | if (rtd->dai_link->dynamic || rtd->dai_link->no_pcm) | |
519 | goto dynamic; | |
520 | ||
ddee627c | 521 | /* Check that the codec and cpu DAIs are compatible */ |
2e5894d7 BC |
522 | soc_pcm_init_runtime_hw(substream); |
523 | ||
524 | if (rtd->num_codecs == 1) | |
525 | codec_dai_name = rtd->codec_dai->name; | |
ddee627c | 526 | |
62e5f676 LPC |
527 | if (soc_pcm_has_symmetry(substream)) |
528 | runtime->hw.info |= SNDRV_PCM_INFO_JOINT_DUPLEX; | |
529 | ||
ddee627c | 530 | ret = -EINVAL; |
ddee627c | 531 | if (!runtime->hw.rates) { |
103d84a3 | 532 | printk(KERN_ERR "ASoC: %s <-> %s No matching rates\n", |
2e5894d7 | 533 | codec_dai_name, cpu_dai->name); |
ddee627c LG |
534 | goto config_err; |
535 | } | |
536 | if (!runtime->hw.formats) { | |
103d84a3 | 537 | printk(KERN_ERR "ASoC: %s <-> %s No matching formats\n", |
2e5894d7 | 538 | codec_dai_name, cpu_dai->name); |
ddee627c LG |
539 | goto config_err; |
540 | } | |
541 | if (!runtime->hw.channels_min || !runtime->hw.channels_max || | |
542 | runtime->hw.channels_min > runtime->hw.channels_max) { | |
103d84a3 | 543 | printk(KERN_ERR "ASoC: %s <-> %s No matching channels\n", |
2e5894d7 | 544 | codec_dai_name, cpu_dai->name); |
ddee627c LG |
545 | goto config_err; |
546 | } | |
547 | ||
c8dd1fec | 548 | soc_pcm_apply_msb(substream); |
58ba9b25 | 549 | |
ddee627c | 550 | /* Symmetry only applies if we've already got an active stream. */ |
17841020 DA |
551 | if (cpu_dai->active) { |
552 | ret = soc_pcm_apply_symmetry(substream, cpu_dai); | |
553 | if (ret != 0) | |
554 | goto config_err; | |
555 | } | |
556 | ||
2e5894d7 BC |
557 | for (i = 0; i < rtd->num_codecs; i++) { |
558 | if (rtd->codec_dais[i]->active) { | |
559 | ret = soc_pcm_apply_symmetry(substream, | |
560 | rtd->codec_dais[i]); | |
561 | if (ret != 0) | |
562 | goto config_err; | |
563 | } | |
ddee627c LG |
564 | } |
565 | ||
103d84a3 | 566 | pr_debug("ASoC: %s <-> %s info:\n", |
2e5894d7 | 567 | codec_dai_name, cpu_dai->name); |
103d84a3 LG |
568 | pr_debug("ASoC: rate mask 0x%x\n", runtime->hw.rates); |
569 | pr_debug("ASoC: min ch %d max ch %d\n", runtime->hw.channels_min, | |
ddee627c | 570 | runtime->hw.channels_max); |
103d84a3 | 571 | pr_debug("ASoC: min rate %d max rate %d\n", runtime->hw.rate_min, |
ddee627c LG |
572 | runtime->hw.rate_max); |
573 | ||
01d7584c | 574 | dynamic: |
24894b76 LPC |
575 | |
576 | snd_soc_runtime_activate(rtd, substream->stream); | |
577 | ||
b8c0dab9 | 578 | mutex_unlock(&rtd->pcm_mutex); |
ddee627c LG |
579 | return 0; |
580 | ||
581 | config_err: | |
582 | if (rtd->dai_link->ops && rtd->dai_link->ops->shutdown) | |
583 | rtd->dai_link->ops->shutdown(substream); | |
584 | ||
585 | machine_err: | |
2e5894d7 | 586 | i = rtd->num_codecs; |
ddee627c LG |
587 | |
588 | codec_dai_err: | |
2e5894d7 BC |
589 | while (--i >= 0) { |
590 | codec_dai = rtd->codec_dais[i]; | |
591 | if (codec_dai->driver->ops->shutdown) | |
592 | codec_dai->driver->ops->shutdown(substream, codec_dai); | |
593 | } | |
594 | ||
ddee627c LG |
595 | if (platform->driver->ops && platform->driver->ops->close) |
596 | platform->driver->ops->close(substream); | |
597 | ||
598 | platform_err: | |
599 | if (cpu_dai->driver->ops->shutdown) | |
600 | cpu_dai->driver->ops->shutdown(substream, cpu_dai); | |
601 | out: | |
b8c0dab9 | 602 | mutex_unlock(&rtd->pcm_mutex); |
d6652ef8 MB |
603 | |
604 | pm_runtime_put(platform->dev); | |
2e5894d7 BC |
605 | for (i = 0; i < rtd->num_codecs; i++) |
606 | pm_runtime_put(rtd->codec_dais[i]->dev); | |
d6652ef8 | 607 | pm_runtime_put(cpu_dai->dev); |
2e5894d7 BC |
608 | for (i = 0; i < rtd->num_codecs; i++) { |
609 | if (!rtd->codec_dais[i]->active) | |
610 | pinctrl_pm_select_sleep_state(rtd->codec_dais[i]->dev); | |
611 | } | |
988e8cc4 NC |
612 | if (!cpu_dai->active) |
613 | pinctrl_pm_select_sleep_state(cpu_dai->dev); | |
d6652ef8 | 614 | |
ddee627c LG |
615 | return ret; |
616 | } | |
617 | ||
618 | /* | |
619 | * Power down the audio subsystem pmdown_time msecs after close is called. | |
620 | * This is to ensure there are no pops or clicks in between any music tracks | |
621 | * due to DAPM power cycling. | |
622 | */ | |
623 | static void close_delayed_work(struct work_struct *work) | |
624 | { | |
625 | struct snd_soc_pcm_runtime *rtd = | |
626 | container_of(work, struct snd_soc_pcm_runtime, delayed_work.work); | |
2e5894d7 | 627 | struct snd_soc_dai *codec_dai = rtd->codec_dais[0]; |
ddee627c | 628 | |
b8c0dab9 | 629 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); |
ddee627c | 630 | |
103d84a3 | 631 | dev_dbg(rtd->dev, "ASoC: pop wq checking: %s status: %s waiting: %s\n", |
ddee627c LG |
632 | codec_dai->driver->playback.stream_name, |
633 | codec_dai->playback_active ? "active" : "inactive", | |
9bffb1fb | 634 | rtd->pop_wait ? "yes" : "no"); |
ddee627c LG |
635 | |
636 | /* are we waiting on this codec DAI stream */ | |
9bffb1fb MLC |
637 | if (rtd->pop_wait == 1) { |
638 | rtd->pop_wait = 0; | |
7bd3a6f3 | 639 | snd_soc_dapm_stream_event(rtd, SNDRV_PCM_STREAM_PLAYBACK, |
d9b0951b | 640 | SND_SOC_DAPM_STREAM_STOP); |
ddee627c LG |
641 | } |
642 | ||
b8c0dab9 | 643 | mutex_unlock(&rtd->pcm_mutex); |
ddee627c LG |
644 | } |
645 | ||
646 | /* | |
647 | * Called by ALSA when a PCM substream is closed. Private data can be | |
648 | * freed here. The cpu DAI, codec DAI, machine and platform are also | |
649 | * shutdown. | |
650 | */ | |
91d5e6b4 | 651 | static int soc_pcm_close(struct snd_pcm_substream *substream) |
ddee627c LG |
652 | { |
653 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
654 | struct snd_soc_platform *platform = rtd->platform; | |
655 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
2e5894d7 BC |
656 | struct snd_soc_dai *codec_dai; |
657 | int i; | |
ddee627c | 658 | |
b8c0dab9 | 659 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); |
ddee627c | 660 | |
24894b76 | 661 | snd_soc_runtime_deactivate(rtd, substream->stream); |
ddee627c | 662 | |
17841020 DA |
663 | /* clear the corresponding DAIs rate when inactive */ |
664 | if (!cpu_dai->active) | |
665 | cpu_dai->rate = 0; | |
666 | ||
2e5894d7 BC |
667 | for (i = 0; i < rtd->num_codecs; i++) { |
668 | codec_dai = rtd->codec_dais[i]; | |
669 | if (!codec_dai->active) | |
670 | codec_dai->rate = 0; | |
671 | } | |
25b76791 | 672 | |
ae11601b RB |
673 | snd_soc_dai_digital_mute(cpu_dai, 1, substream->stream); |
674 | ||
ddee627c LG |
675 | if (cpu_dai->driver->ops->shutdown) |
676 | cpu_dai->driver->ops->shutdown(substream, cpu_dai); | |
677 | ||
2e5894d7 BC |
678 | for (i = 0; i < rtd->num_codecs; i++) { |
679 | codec_dai = rtd->codec_dais[i]; | |
680 | if (codec_dai->driver->ops->shutdown) | |
681 | codec_dai->driver->ops->shutdown(substream, codec_dai); | |
682 | } | |
ddee627c LG |
683 | |
684 | if (rtd->dai_link->ops && rtd->dai_link->ops->shutdown) | |
685 | rtd->dai_link->ops->shutdown(substream); | |
686 | ||
687 | if (platform->driver->ops && platform->driver->ops->close) | |
688 | platform->driver->ops->close(substream); | |
ddee627c LG |
689 | |
690 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { | |
208a1589 | 691 | if (snd_soc_runtime_ignore_pmdown_time(rtd)) { |
1d69c5c5 PU |
692 | /* powered down playback stream now */ |
693 | snd_soc_dapm_stream_event(rtd, | |
7bd3a6f3 | 694 | SNDRV_PCM_STREAM_PLAYBACK, |
7bd3a6f3 | 695 | SND_SOC_DAPM_STREAM_STOP); |
1d69c5c5 PU |
696 | } else { |
697 | /* start delayed pop wq here for playback streams */ | |
9bffb1fb | 698 | rtd->pop_wait = 1; |
d4e1a73a MB |
699 | queue_delayed_work(system_power_efficient_wq, |
700 | &rtd->delayed_work, | |
701 | msecs_to_jiffies(rtd->pmdown_time)); | |
1d69c5c5 | 702 | } |
ddee627c LG |
703 | } else { |
704 | /* capture streams can be powered down now */ | |
7bd3a6f3 | 705 | snd_soc_dapm_stream_event(rtd, SNDRV_PCM_STREAM_CAPTURE, |
d9b0951b | 706 | SND_SOC_DAPM_STREAM_STOP); |
ddee627c LG |
707 | } |
708 | ||
b8c0dab9 | 709 | mutex_unlock(&rtd->pcm_mutex); |
d6652ef8 MB |
710 | |
711 | pm_runtime_put(platform->dev); | |
2e5894d7 BC |
712 | for (i = 0; i < rtd->num_codecs; i++) |
713 | pm_runtime_put(rtd->codec_dais[i]->dev); | |
d6652ef8 | 714 | pm_runtime_put(cpu_dai->dev); |
2e5894d7 BC |
715 | for (i = 0; i < rtd->num_codecs; i++) { |
716 | if (!rtd->codec_dais[i]->active) | |
717 | pinctrl_pm_select_sleep_state(rtd->codec_dais[i]->dev); | |
718 | } | |
988e8cc4 NC |
719 | if (!cpu_dai->active) |
720 | pinctrl_pm_select_sleep_state(cpu_dai->dev); | |
d6652ef8 | 721 | |
ddee627c LG |
722 | return 0; |
723 | } | |
724 | ||
725 | /* | |
726 | * Called by ALSA when the PCM substream is prepared, can set format, sample | |
727 | * rate, etc. This function is non atomic and can be called multiple times, | |
728 | * it can refer to the runtime info. | |
729 | */ | |
730 | static int soc_pcm_prepare(struct snd_pcm_substream *substream) | |
731 | { | |
732 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
733 | struct snd_soc_platform *platform = rtd->platform; | |
734 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
2e5894d7 BC |
735 | struct snd_soc_dai *codec_dai; |
736 | int i, ret = 0; | |
ddee627c | 737 | |
b8c0dab9 | 738 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); |
ddee627c LG |
739 | |
740 | if (rtd->dai_link->ops && rtd->dai_link->ops->prepare) { | |
741 | ret = rtd->dai_link->ops->prepare(substream); | |
742 | if (ret < 0) { | |
103d84a3 LG |
743 | dev_err(rtd->card->dev, "ASoC: machine prepare error:" |
744 | " %d\n", ret); | |
ddee627c LG |
745 | goto out; |
746 | } | |
747 | } | |
748 | ||
749 | if (platform->driver->ops && platform->driver->ops->prepare) { | |
750 | ret = platform->driver->ops->prepare(substream); | |
751 | if (ret < 0) { | |
103d84a3 LG |
752 | dev_err(platform->dev, "ASoC: platform prepare error:" |
753 | " %d\n", ret); | |
ddee627c LG |
754 | goto out; |
755 | } | |
756 | } | |
757 | ||
2e5894d7 BC |
758 | for (i = 0; i < rtd->num_codecs; i++) { |
759 | codec_dai = rtd->codec_dais[i]; | |
760 | if (codec_dai->driver->ops && codec_dai->driver->ops->prepare) { | |
761 | ret = codec_dai->driver->ops->prepare(substream, | |
762 | codec_dai); | |
763 | if (ret < 0) { | |
764 | dev_err(codec_dai->dev, | |
90cc7f1c JN |
765 | "ASoC: codec DAI prepare error: %d\n", |
766 | ret); | |
2e5894d7 BC |
767 | goto out; |
768 | } | |
ddee627c LG |
769 | } |
770 | } | |
771 | ||
c5914b0a | 772 | if (cpu_dai->driver->ops && cpu_dai->driver->ops->prepare) { |
ddee627c LG |
773 | ret = cpu_dai->driver->ops->prepare(substream, cpu_dai); |
774 | if (ret < 0) { | |
90cc7f1c JN |
775 | dev_err(cpu_dai->dev, |
776 | "ASoC: cpu DAI prepare error: %d\n", ret); | |
ddee627c LG |
777 | goto out; |
778 | } | |
779 | } | |
780 | ||
781 | /* cancel any delayed stream shutdown that is pending */ | |
782 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK && | |
9bffb1fb MLC |
783 | rtd->pop_wait) { |
784 | rtd->pop_wait = 0; | |
ddee627c LG |
785 | cancel_delayed_work(&rtd->delayed_work); |
786 | } | |
787 | ||
d9b0951b LG |
788 | snd_soc_dapm_stream_event(rtd, substream->stream, |
789 | SND_SOC_DAPM_STREAM_START); | |
ddee627c | 790 | |
2e5894d7 BC |
791 | for (i = 0; i < rtd->num_codecs; i++) |
792 | snd_soc_dai_digital_mute(rtd->codec_dais[i], 0, | |
793 | substream->stream); | |
ae11601b | 794 | snd_soc_dai_digital_mute(cpu_dai, 0, substream->stream); |
ddee627c LG |
795 | |
796 | out: | |
b8c0dab9 | 797 | mutex_unlock(&rtd->pcm_mutex); |
ddee627c LG |
798 | return ret; |
799 | } | |
800 | ||
2e5894d7 BC |
801 | static void soc_pcm_codec_params_fixup(struct snd_pcm_hw_params *params, |
802 | unsigned int mask) | |
803 | { | |
804 | struct snd_interval *interval; | |
805 | int channels = hweight_long(mask); | |
806 | ||
807 | interval = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS); | |
808 | interval->min = channels; | |
809 | interval->max = channels; | |
810 | } | |
811 | ||
93e6958a BC |
812 | int soc_dai_hw_params(struct snd_pcm_substream *substream, |
813 | struct snd_pcm_hw_params *params, | |
814 | struct snd_soc_dai *dai) | |
815 | { | |
816 | int ret; | |
817 | ||
818 | if (dai->driver->ops && dai->driver->ops->hw_params) { | |
819 | ret = dai->driver->ops->hw_params(substream, params, dai); | |
820 | if (ret < 0) { | |
821 | dev_err(dai->dev, "ASoC: can't set %s hw params: %d\n", | |
822 | dai->name, ret); | |
823 | return ret; | |
824 | } | |
825 | } | |
826 | ||
827 | return 0; | |
828 | } | |
829 | ||
ddee627c LG |
830 | /* |
831 | * Called by ALSA when the hardware params are set by application. This | |
832 | * function can also be called multiple times and can allocate buffers | |
833 | * (using snd_pcm_lib_* ). It's non-atomic. | |
834 | */ | |
835 | static int soc_pcm_hw_params(struct snd_pcm_substream *substream, | |
836 | struct snd_pcm_hw_params *params) | |
837 | { | |
838 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
839 | struct snd_soc_platform *platform = rtd->platform; | |
840 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
2e5894d7 | 841 | int i, ret = 0; |
ddee627c | 842 | |
b8c0dab9 | 843 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); |
ddee627c | 844 | |
3635bf09 NC |
845 | ret = soc_pcm_params_symmetry(substream, params); |
846 | if (ret) | |
847 | goto out; | |
848 | ||
ddee627c LG |
849 | if (rtd->dai_link->ops && rtd->dai_link->ops->hw_params) { |
850 | ret = rtd->dai_link->ops->hw_params(substream, params); | |
851 | if (ret < 0) { | |
103d84a3 LG |
852 | dev_err(rtd->card->dev, "ASoC: machine hw_params" |
853 | " failed: %d\n", ret); | |
ddee627c LG |
854 | goto out; |
855 | } | |
856 | } | |
857 | ||
2e5894d7 BC |
858 | for (i = 0; i < rtd->num_codecs; i++) { |
859 | struct snd_soc_dai *codec_dai = rtd->codec_dais[i]; | |
860 | struct snd_pcm_hw_params codec_params; | |
861 | ||
cde79035 RW |
862 | /* |
863 | * Skip CODECs which don't support the current stream type, | |
864 | * the idea being that if a CODEC is not used for the currently | |
865 | * set up transfer direction, it should not need to be | |
866 | * configured, especially since the configuration used might | |
867 | * not even be supported by that CODEC. There may be cases | |
868 | * however where a CODEC needs to be set up although it is | |
869 | * actually not being used for the transfer, e.g. if a | |
870 | * capture-only CODEC is acting as an LRCLK and/or BCLK master | |
871 | * for the DAI link including a playback-only CODEC. | |
872 | * If this becomes necessary, we will have to augment the | |
873 | * machine driver setup with information on how to act, so | |
874 | * we can do the right thing here. | |
875 | */ | |
876 | if (!snd_soc_dai_stream_valid(codec_dai, substream->stream)) | |
877 | continue; | |
878 | ||
2e5894d7 BC |
879 | /* copy params for each codec */ |
880 | codec_params = *params; | |
881 | ||
882 | /* fixup params based on TDM slot masks */ | |
883 | if (codec_dai->tx_mask) | |
884 | soc_pcm_codec_params_fixup(&codec_params, | |
885 | codec_dai->tx_mask); | |
886 | if (codec_dai->rx_mask) | |
887 | soc_pcm_codec_params_fixup(&codec_params, | |
888 | codec_dai->rx_mask); | |
889 | ||
93e6958a BC |
890 | ret = soc_dai_hw_params(substream, &codec_params, codec_dai); |
891 | if(ret < 0) | |
ddee627c | 892 | goto codec_err; |
ddee627c | 893 | |
2e5894d7 BC |
894 | codec_dai->rate = params_rate(&codec_params); |
895 | codec_dai->channels = params_channels(&codec_params); | |
896 | codec_dai->sample_bits = snd_pcm_format_physical_width( | |
897 | params_format(&codec_params)); | |
ddee627c LG |
898 | } |
899 | ||
93e6958a BC |
900 | ret = soc_dai_hw_params(substream, params, cpu_dai); |
901 | if (ret < 0) | |
902 | goto interface_err; | |
ddee627c LG |
903 | |
904 | if (platform->driver->ops && platform->driver->ops->hw_params) { | |
905 | ret = platform->driver->ops->hw_params(substream, params); | |
906 | if (ret < 0) { | |
103d84a3 | 907 | dev_err(platform->dev, "ASoC: %s hw params failed: %d\n", |
f4333203 | 908 | platform->component.name, ret); |
ddee627c LG |
909 | goto platform_err; |
910 | } | |
911 | } | |
912 | ||
3635bf09 | 913 | /* store the parameters for each DAIs */ |
17841020 | 914 | cpu_dai->rate = params_rate(params); |
3635bf09 NC |
915 | cpu_dai->channels = params_channels(params); |
916 | cpu_dai->sample_bits = | |
917 | snd_pcm_format_physical_width(params_format(params)); | |
918 | ||
ddee627c | 919 | out: |
b8c0dab9 | 920 | mutex_unlock(&rtd->pcm_mutex); |
ddee627c LG |
921 | return ret; |
922 | ||
923 | platform_err: | |
c5914b0a | 924 | if (cpu_dai->driver->ops && cpu_dai->driver->ops->hw_free) |
ddee627c LG |
925 | cpu_dai->driver->ops->hw_free(substream, cpu_dai); |
926 | ||
927 | interface_err: | |
2e5894d7 | 928 | i = rtd->num_codecs; |
ddee627c LG |
929 | |
930 | codec_err: | |
2e5894d7 BC |
931 | while (--i >= 0) { |
932 | struct snd_soc_dai *codec_dai = rtd->codec_dais[i]; | |
933 | if (codec_dai->driver->ops && codec_dai->driver->ops->hw_free) | |
934 | codec_dai->driver->ops->hw_free(substream, codec_dai); | |
935 | codec_dai->rate = 0; | |
936 | } | |
937 | ||
ddee627c LG |
938 | if (rtd->dai_link->ops && rtd->dai_link->ops->hw_free) |
939 | rtd->dai_link->ops->hw_free(substream); | |
940 | ||
b8c0dab9 | 941 | mutex_unlock(&rtd->pcm_mutex); |
ddee627c LG |
942 | return ret; |
943 | } | |
944 | ||
945 | /* | |
946 | * Frees resources allocated by hw_params, can be called multiple times | |
947 | */ | |
948 | static int soc_pcm_hw_free(struct snd_pcm_substream *substream) | |
949 | { | |
950 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
951 | struct snd_soc_platform *platform = rtd->platform; | |
952 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
2e5894d7 | 953 | struct snd_soc_dai *codec_dai; |
7f62b6ee | 954 | bool playback = substream->stream == SNDRV_PCM_STREAM_PLAYBACK; |
2e5894d7 | 955 | int i; |
ddee627c | 956 | |
b8c0dab9 | 957 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); |
ddee627c | 958 | |
d3383420 NC |
959 | /* clear the corresponding DAIs parameters when going to be inactive */ |
960 | if (cpu_dai->active == 1) { | |
961 | cpu_dai->rate = 0; | |
962 | cpu_dai->channels = 0; | |
963 | cpu_dai->sample_bits = 0; | |
964 | } | |
965 | ||
2e5894d7 BC |
966 | for (i = 0; i < rtd->num_codecs; i++) { |
967 | codec_dai = rtd->codec_dais[i]; | |
968 | if (codec_dai->active == 1) { | |
969 | codec_dai->rate = 0; | |
970 | codec_dai->channels = 0; | |
971 | codec_dai->sample_bits = 0; | |
972 | } | |
d3383420 NC |
973 | } |
974 | ||
ddee627c | 975 | /* apply codec digital mute */ |
2e5894d7 BC |
976 | for (i = 0; i < rtd->num_codecs; i++) { |
977 | if ((playback && rtd->codec_dais[i]->playback_active == 1) || | |
978 | (!playback && rtd->codec_dais[i]->capture_active == 1)) | |
979 | snd_soc_dai_digital_mute(rtd->codec_dais[i], 1, | |
980 | substream->stream); | |
981 | } | |
ddee627c LG |
982 | |
983 | /* free any machine hw params */ | |
984 | if (rtd->dai_link->ops && rtd->dai_link->ops->hw_free) | |
985 | rtd->dai_link->ops->hw_free(substream); | |
986 | ||
987 | /* free any DMA resources */ | |
988 | if (platform->driver->ops && platform->driver->ops->hw_free) | |
989 | platform->driver->ops->hw_free(substream); | |
990 | ||
991 | /* now free hw params for the DAIs */ | |
2e5894d7 BC |
992 | for (i = 0; i < rtd->num_codecs; i++) { |
993 | codec_dai = rtd->codec_dais[i]; | |
994 | if (codec_dai->driver->ops && codec_dai->driver->ops->hw_free) | |
995 | codec_dai->driver->ops->hw_free(substream, codec_dai); | |
996 | } | |
ddee627c | 997 | |
c5914b0a | 998 | if (cpu_dai->driver->ops && cpu_dai->driver->ops->hw_free) |
ddee627c LG |
999 | cpu_dai->driver->ops->hw_free(substream, cpu_dai); |
1000 | ||
b8c0dab9 | 1001 | mutex_unlock(&rtd->pcm_mutex); |
ddee627c LG |
1002 | return 0; |
1003 | } | |
1004 | ||
1005 | static int soc_pcm_trigger(struct snd_pcm_substream *substream, int cmd) | |
1006 | { | |
1007 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
1008 | struct snd_soc_platform *platform = rtd->platform; | |
1009 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
2e5894d7 BC |
1010 | struct snd_soc_dai *codec_dai; |
1011 | int i, ret; | |
1012 | ||
1013 | for (i = 0; i < rtd->num_codecs; i++) { | |
1014 | codec_dai = rtd->codec_dais[i]; | |
1015 | if (codec_dai->driver->ops && codec_dai->driver->ops->trigger) { | |
1016 | ret = codec_dai->driver->ops->trigger(substream, | |
1017 | cmd, codec_dai); | |
1018 | if (ret < 0) | |
1019 | return ret; | |
1020 | } | |
ddee627c LG |
1021 | } |
1022 | ||
1023 | if (platform->driver->ops && platform->driver->ops->trigger) { | |
1024 | ret = platform->driver->ops->trigger(substream, cmd); | |
1025 | if (ret < 0) | |
1026 | return ret; | |
1027 | } | |
1028 | ||
c5914b0a | 1029 | if (cpu_dai->driver->ops && cpu_dai->driver->ops->trigger) { |
ddee627c LG |
1030 | ret = cpu_dai->driver->ops->trigger(substream, cmd, cpu_dai); |
1031 | if (ret < 0) | |
1032 | return ret; | |
1033 | } | |
4792b0db JN |
1034 | |
1035 | if (rtd->dai_link->ops && rtd->dai_link->ops->trigger) { | |
1036 | ret = rtd->dai_link->ops->trigger(substream, cmd); | |
1037 | if (ret < 0) | |
1038 | return ret; | |
1039 | } | |
1040 | ||
ddee627c LG |
1041 | return 0; |
1042 | } | |
1043 | ||
45c0a188 MB |
1044 | static int soc_pcm_bespoke_trigger(struct snd_pcm_substream *substream, |
1045 | int cmd) | |
07bf84aa LG |
1046 | { |
1047 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
1048 | struct snd_soc_platform *platform = rtd->platform; | |
1049 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
2e5894d7 BC |
1050 | struct snd_soc_dai *codec_dai; |
1051 | int i, ret; | |
1052 | ||
1053 | for (i = 0; i < rtd->num_codecs; i++) { | |
1054 | codec_dai = rtd->codec_dais[i]; | |
1055 | if (codec_dai->driver->ops && | |
1056 | codec_dai->driver->ops->bespoke_trigger) { | |
1057 | ret = codec_dai->driver->ops->bespoke_trigger(substream, | |
1058 | cmd, codec_dai); | |
1059 | if (ret < 0) | |
1060 | return ret; | |
1061 | } | |
07bf84aa LG |
1062 | } |
1063 | ||
dcf0fa27 | 1064 | if (platform->driver->bespoke_trigger) { |
07bf84aa LG |
1065 | ret = platform->driver->bespoke_trigger(substream, cmd); |
1066 | if (ret < 0) | |
1067 | return ret; | |
1068 | } | |
1069 | ||
c5914b0a | 1070 | if (cpu_dai->driver->ops && cpu_dai->driver->ops->bespoke_trigger) { |
07bf84aa LG |
1071 | ret = cpu_dai->driver->ops->bespoke_trigger(substream, cmd, cpu_dai); |
1072 | if (ret < 0) | |
1073 | return ret; | |
1074 | } | |
1075 | return 0; | |
1076 | } | |
ddee627c LG |
1077 | /* |
1078 | * soc level wrapper for pointer callback | |
1079 | * If cpu_dai, codec_dai, platform driver has the delay callback, than | |
1080 | * the runtime->delay will be updated accordingly. | |
1081 | */ | |
1082 | static snd_pcm_uframes_t soc_pcm_pointer(struct snd_pcm_substream *substream) | |
1083 | { | |
1084 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
1085 | struct snd_soc_platform *platform = rtd->platform; | |
1086 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
2e5894d7 | 1087 | struct snd_soc_dai *codec_dai; |
ddee627c LG |
1088 | struct snd_pcm_runtime *runtime = substream->runtime; |
1089 | snd_pcm_uframes_t offset = 0; | |
1090 | snd_pcm_sframes_t delay = 0; | |
2e5894d7 BC |
1091 | snd_pcm_sframes_t codec_delay = 0; |
1092 | int i; | |
ddee627c LG |
1093 | |
1094 | if (platform->driver->ops && platform->driver->ops->pointer) | |
1095 | offset = platform->driver->ops->pointer(substream); | |
1096 | ||
c5914b0a | 1097 | if (cpu_dai->driver->ops && cpu_dai->driver->ops->delay) |
ddee627c LG |
1098 | delay += cpu_dai->driver->ops->delay(substream, cpu_dai); |
1099 | ||
2e5894d7 BC |
1100 | for (i = 0; i < rtd->num_codecs; i++) { |
1101 | codec_dai = rtd->codec_dais[i]; | |
1102 | if (codec_dai->driver->ops && codec_dai->driver->ops->delay) | |
1103 | codec_delay = max(codec_delay, | |
1104 | codec_dai->driver->ops->delay(substream, | |
1105 | codec_dai)); | |
1106 | } | |
1107 | delay += codec_delay; | |
ddee627c | 1108 | |
2e5894d7 BC |
1109 | /* |
1110 | * None of the existing platform drivers implement delay(), so | |
1111 | * for now the codec_dai of first multicodec entry is used | |
1112 | */ | |
ddee627c | 1113 | if (platform->driver->delay) |
2e5894d7 | 1114 | delay += platform->driver->delay(substream, rtd->codec_dais[0]); |
ddee627c LG |
1115 | |
1116 | runtime->delay = delay; | |
1117 | ||
1118 | return offset; | |
1119 | } | |
1120 | ||
01d7584c LG |
1121 | /* connect a FE and BE */ |
1122 | static int dpcm_be_connect(struct snd_soc_pcm_runtime *fe, | |
1123 | struct snd_soc_pcm_runtime *be, int stream) | |
1124 | { | |
1125 | struct snd_soc_dpcm *dpcm; | |
1126 | ||
1127 | /* only add new dpcms */ | |
1128 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { | |
1129 | if (dpcm->be == be && dpcm->fe == fe) | |
1130 | return 0; | |
1131 | } | |
1132 | ||
1133 | dpcm = kzalloc(sizeof(struct snd_soc_dpcm), GFP_KERNEL); | |
1134 | if (!dpcm) | |
1135 | return -ENOMEM; | |
1136 | ||
1137 | dpcm->be = be; | |
1138 | dpcm->fe = fe; | |
1139 | be->dpcm[stream].runtime = fe->dpcm[stream].runtime; | |
1140 | dpcm->state = SND_SOC_DPCM_LINK_STATE_NEW; | |
1141 | list_add(&dpcm->list_be, &fe->dpcm[stream].be_clients); | |
1142 | list_add(&dpcm->list_fe, &be->dpcm[stream].fe_clients); | |
1143 | ||
7cc302d2 | 1144 | dev_dbg(fe->dev, "connected new DPCM %s path %s %s %s\n", |
01d7584c LG |
1145 | stream ? "capture" : "playback", fe->dai_link->name, |
1146 | stream ? "<-" : "->", be->dai_link->name); | |
1147 | ||
f86dcef8 | 1148 | #ifdef CONFIG_DEBUG_FS |
6553bf06 LPC |
1149 | if (fe->debugfs_dpcm_root) |
1150 | dpcm->debugfs_state = debugfs_create_u32(be->dai_link->name, 0644, | |
1151 | fe->debugfs_dpcm_root, &dpcm->state); | |
f86dcef8 | 1152 | #endif |
01d7584c LG |
1153 | return 1; |
1154 | } | |
1155 | ||
1156 | /* reparent a BE onto another FE */ | |
1157 | static void dpcm_be_reparent(struct snd_soc_pcm_runtime *fe, | |
1158 | struct snd_soc_pcm_runtime *be, int stream) | |
1159 | { | |
1160 | struct snd_soc_dpcm *dpcm; | |
1161 | struct snd_pcm_substream *fe_substream, *be_substream; | |
1162 | ||
1163 | /* reparent if BE is connected to other FEs */ | |
1164 | if (!be->dpcm[stream].users) | |
1165 | return; | |
1166 | ||
1167 | be_substream = snd_soc_dpcm_get_substream(be, stream); | |
1168 | ||
1169 | list_for_each_entry(dpcm, &be->dpcm[stream].fe_clients, list_fe) { | |
1170 | if (dpcm->fe == fe) | |
1171 | continue; | |
1172 | ||
7cc302d2 | 1173 | dev_dbg(fe->dev, "reparent %s path %s %s %s\n", |
01d7584c LG |
1174 | stream ? "capture" : "playback", |
1175 | dpcm->fe->dai_link->name, | |
1176 | stream ? "<-" : "->", dpcm->be->dai_link->name); | |
1177 | ||
1178 | fe_substream = snd_soc_dpcm_get_substream(dpcm->fe, stream); | |
1179 | be_substream->runtime = fe_substream->runtime; | |
1180 | break; | |
1181 | } | |
1182 | } | |
1183 | ||
1184 | /* disconnect a BE and FE */ | |
23607025 | 1185 | void dpcm_be_disconnect(struct snd_soc_pcm_runtime *fe, int stream) |
01d7584c LG |
1186 | { |
1187 | struct snd_soc_dpcm *dpcm, *d; | |
1188 | ||
1189 | list_for_each_entry_safe(dpcm, d, &fe->dpcm[stream].be_clients, list_be) { | |
103d84a3 | 1190 | dev_dbg(fe->dev, "ASoC: BE %s disconnect check for %s\n", |
01d7584c LG |
1191 | stream ? "capture" : "playback", |
1192 | dpcm->be->dai_link->name); | |
1193 | ||
1194 | if (dpcm->state != SND_SOC_DPCM_LINK_STATE_FREE) | |
1195 | continue; | |
1196 | ||
7cc302d2 | 1197 | dev_dbg(fe->dev, "freed DSP %s path %s %s %s\n", |
01d7584c LG |
1198 | stream ? "capture" : "playback", fe->dai_link->name, |
1199 | stream ? "<-" : "->", dpcm->be->dai_link->name); | |
1200 | ||
1201 | /* BEs still alive need new FE */ | |
1202 | dpcm_be_reparent(fe, dpcm->be, stream); | |
1203 | ||
f86dcef8 LG |
1204 | #ifdef CONFIG_DEBUG_FS |
1205 | debugfs_remove(dpcm->debugfs_state); | |
1206 | #endif | |
01d7584c LG |
1207 | list_del(&dpcm->list_be); |
1208 | list_del(&dpcm->list_fe); | |
1209 | kfree(dpcm); | |
1210 | } | |
1211 | } | |
1212 | ||
1213 | /* get BE for DAI widget and stream */ | |
1214 | static struct snd_soc_pcm_runtime *dpcm_get_be(struct snd_soc_card *card, | |
1215 | struct snd_soc_dapm_widget *widget, int stream) | |
1216 | { | |
1217 | struct snd_soc_pcm_runtime *be; | |
2e5894d7 | 1218 | int i, j; |
01d7584c LG |
1219 | |
1220 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) { | |
1221 | for (i = 0; i < card->num_links; i++) { | |
1222 | be = &card->rtd[i]; | |
1223 | ||
35ea0655 LG |
1224 | if (!be->dai_link->no_pcm) |
1225 | continue; | |
1226 | ||
2e5894d7 | 1227 | if (be->cpu_dai->playback_widget == widget) |
01d7584c | 1228 | return be; |
2e5894d7 BC |
1229 | |
1230 | for (j = 0; j < be->num_codecs; j++) { | |
1231 | struct snd_soc_dai *dai = be->codec_dais[j]; | |
1232 | if (dai->playback_widget == widget) | |
1233 | return be; | |
1234 | } | |
01d7584c LG |
1235 | } |
1236 | } else { | |
1237 | ||
1238 | for (i = 0; i < card->num_links; i++) { | |
1239 | be = &card->rtd[i]; | |
1240 | ||
35ea0655 LG |
1241 | if (!be->dai_link->no_pcm) |
1242 | continue; | |
1243 | ||
2e5894d7 | 1244 | if (be->cpu_dai->capture_widget == widget) |
01d7584c | 1245 | return be; |
2e5894d7 BC |
1246 | |
1247 | for (j = 0; j < be->num_codecs; j++) { | |
1248 | struct snd_soc_dai *dai = be->codec_dais[j]; | |
1249 | if (dai->capture_widget == widget) | |
1250 | return be; | |
1251 | } | |
01d7584c LG |
1252 | } |
1253 | } | |
1254 | ||
103d84a3 | 1255 | dev_err(card->dev, "ASoC: can't get %s BE for %s\n", |
01d7584c LG |
1256 | stream ? "capture" : "playback", widget->name); |
1257 | return NULL; | |
1258 | } | |
1259 | ||
1260 | static inline struct snd_soc_dapm_widget * | |
37018610 | 1261 | dai_get_widget(struct snd_soc_dai *dai, int stream) |
01d7584c LG |
1262 | { |
1263 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) | |
37018610 | 1264 | return dai->playback_widget; |
01d7584c | 1265 | else |
37018610 | 1266 | return dai->capture_widget; |
01d7584c LG |
1267 | } |
1268 | ||
1269 | static int widget_in_list(struct snd_soc_dapm_widget_list *list, | |
1270 | struct snd_soc_dapm_widget *widget) | |
1271 | { | |
1272 | int i; | |
1273 | ||
1274 | for (i = 0; i < list->num_widgets; i++) { | |
1275 | if (widget == list->widgets[i]) | |
1276 | return 1; | |
1277 | } | |
1278 | ||
1279 | return 0; | |
1280 | } | |
1281 | ||
23607025 | 1282 | int dpcm_path_get(struct snd_soc_pcm_runtime *fe, |
1ce43acf | 1283 | int stream, struct snd_soc_dapm_widget_list **list) |
01d7584c LG |
1284 | { |
1285 | struct snd_soc_dai *cpu_dai = fe->cpu_dai; | |
01d7584c LG |
1286 | int paths; |
1287 | ||
01d7584c | 1288 | /* get number of valid DAI paths and their widgets */ |
1ce43acf | 1289 | paths = snd_soc_dapm_dai_get_connected_widgets(cpu_dai, stream, list); |
01d7584c | 1290 | |
103d84a3 | 1291 | dev_dbg(fe->dev, "ASoC: found %d audio %s paths\n", paths, |
01d7584c LG |
1292 | stream ? "capture" : "playback"); |
1293 | ||
01d7584c LG |
1294 | return paths; |
1295 | } | |
1296 | ||
01d7584c LG |
1297 | static int dpcm_prune_paths(struct snd_soc_pcm_runtime *fe, int stream, |
1298 | struct snd_soc_dapm_widget_list **list_) | |
1299 | { | |
1300 | struct snd_soc_dpcm *dpcm; | |
1301 | struct snd_soc_dapm_widget_list *list = *list_; | |
1302 | struct snd_soc_dapm_widget *widget; | |
1303 | int prune = 0; | |
1304 | ||
1305 | /* Destroy any old FE <--> BE connections */ | |
1306 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { | |
2e5894d7 | 1307 | unsigned int i; |
01d7584c LG |
1308 | |
1309 | /* is there a valid CPU DAI widget for this BE */ | |
37018610 | 1310 | widget = dai_get_widget(dpcm->be->cpu_dai, stream); |
01d7584c LG |
1311 | |
1312 | /* prune the BE if it's no longer in our active list */ | |
1313 | if (widget && widget_in_list(list, widget)) | |
1314 | continue; | |
1315 | ||
1316 | /* is there a valid CODEC DAI widget for this BE */ | |
2e5894d7 BC |
1317 | for (i = 0; i < dpcm->be->num_codecs; i++) { |
1318 | struct snd_soc_dai *dai = dpcm->be->codec_dais[i]; | |
1319 | widget = dai_get_widget(dai, stream); | |
01d7584c | 1320 | |
2e5894d7 BC |
1321 | /* prune the BE if it's no longer in our active list */ |
1322 | if (widget && widget_in_list(list, widget)) | |
1323 | continue; | |
1324 | } | |
01d7584c | 1325 | |
103d84a3 | 1326 | dev_dbg(fe->dev, "ASoC: pruning %s BE %s for %s\n", |
01d7584c LG |
1327 | stream ? "capture" : "playback", |
1328 | dpcm->be->dai_link->name, fe->dai_link->name); | |
1329 | dpcm->state = SND_SOC_DPCM_LINK_STATE_FREE; | |
1330 | dpcm->be->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_BE; | |
1331 | prune++; | |
1332 | } | |
1333 | ||
103d84a3 | 1334 | dev_dbg(fe->dev, "ASoC: found %d old BE paths for pruning\n", prune); |
01d7584c LG |
1335 | return prune; |
1336 | } | |
1337 | ||
1338 | static int dpcm_add_paths(struct snd_soc_pcm_runtime *fe, int stream, | |
1339 | struct snd_soc_dapm_widget_list **list_) | |
1340 | { | |
1341 | struct snd_soc_card *card = fe->card; | |
1342 | struct snd_soc_dapm_widget_list *list = *list_; | |
1343 | struct snd_soc_pcm_runtime *be; | |
1344 | int i, new = 0, err; | |
1345 | ||
1346 | /* Create any new FE <--> BE connections */ | |
1347 | for (i = 0; i < list->num_widgets; i++) { | |
1348 | ||
4616274d MB |
1349 | switch (list->widgets[i]->id) { |
1350 | case snd_soc_dapm_dai_in: | |
c5b8540d KC |
1351 | if (stream != SNDRV_PCM_STREAM_PLAYBACK) |
1352 | continue; | |
1353 | break; | |
4616274d | 1354 | case snd_soc_dapm_dai_out: |
c5b8540d KC |
1355 | if (stream != SNDRV_PCM_STREAM_CAPTURE) |
1356 | continue; | |
4616274d MB |
1357 | break; |
1358 | default: | |
01d7584c | 1359 | continue; |
4616274d | 1360 | } |
01d7584c LG |
1361 | |
1362 | /* is there a valid BE rtd for this widget */ | |
1363 | be = dpcm_get_be(card, list->widgets[i], stream); | |
1364 | if (!be) { | |
103d84a3 | 1365 | dev_err(fe->dev, "ASoC: no BE found for %s\n", |
01d7584c LG |
1366 | list->widgets[i]->name); |
1367 | continue; | |
1368 | } | |
1369 | ||
1370 | /* make sure BE is a real BE */ | |
1371 | if (!be->dai_link->no_pcm) | |
1372 | continue; | |
1373 | ||
1374 | /* don't connect if FE is not running */ | |
23607025 | 1375 | if (!fe->dpcm[stream].runtime && !fe->fe_compr) |
01d7584c LG |
1376 | continue; |
1377 | ||
1378 | /* newly connected FE and BE */ | |
1379 | err = dpcm_be_connect(fe, be, stream); | |
1380 | if (err < 0) { | |
103d84a3 | 1381 | dev_err(fe->dev, "ASoC: can't connect %s\n", |
01d7584c LG |
1382 | list->widgets[i]->name); |
1383 | break; | |
1384 | } else if (err == 0) /* already connected */ | |
1385 | continue; | |
1386 | ||
1387 | /* new */ | |
1388 | be->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_BE; | |
1389 | new++; | |
1390 | } | |
1391 | ||
103d84a3 | 1392 | dev_dbg(fe->dev, "ASoC: found %d new BE paths\n", new); |
01d7584c LG |
1393 | return new; |
1394 | } | |
1395 | ||
1396 | /* | |
1397 | * Find the corresponding BE DAIs that source or sink audio to this | |
1398 | * FE substream. | |
1399 | */ | |
23607025 | 1400 | int dpcm_process_paths(struct snd_soc_pcm_runtime *fe, |
01d7584c LG |
1401 | int stream, struct snd_soc_dapm_widget_list **list, int new) |
1402 | { | |
1403 | if (new) | |
1404 | return dpcm_add_paths(fe, stream, list); | |
1405 | else | |
1406 | return dpcm_prune_paths(fe, stream, list); | |
1407 | } | |
1408 | ||
23607025 | 1409 | void dpcm_clear_pending_state(struct snd_soc_pcm_runtime *fe, int stream) |
01d7584c LG |
1410 | { |
1411 | struct snd_soc_dpcm *dpcm; | |
1412 | ||
1413 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) | |
1414 | dpcm->be->dpcm[stream].runtime_update = | |
1415 | SND_SOC_DPCM_UPDATE_NO; | |
1416 | } | |
1417 | ||
1418 | static void dpcm_be_dai_startup_unwind(struct snd_soc_pcm_runtime *fe, | |
1419 | int stream) | |
1420 | { | |
1421 | struct snd_soc_dpcm *dpcm; | |
1422 | ||
1423 | /* disable any enabled and non active backends */ | |
1424 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { | |
1425 | ||
1426 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
1427 | struct snd_pcm_substream *be_substream = | |
1428 | snd_soc_dpcm_get_substream(be, stream); | |
1429 | ||
1430 | if (be->dpcm[stream].users == 0) | |
103d84a3 | 1431 | dev_err(be->dev, "ASoC: no users %s at close - state %d\n", |
01d7584c LG |
1432 | stream ? "capture" : "playback", |
1433 | be->dpcm[stream].state); | |
1434 | ||
1435 | if (--be->dpcm[stream].users != 0) | |
1436 | continue; | |
1437 | ||
1438 | if (be->dpcm[stream].state != SND_SOC_DPCM_STATE_OPEN) | |
1439 | continue; | |
1440 | ||
1441 | soc_pcm_close(be_substream); | |
1442 | be_substream->runtime = NULL; | |
1443 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_CLOSE; | |
1444 | } | |
1445 | } | |
1446 | ||
23607025 | 1447 | int dpcm_be_dai_startup(struct snd_soc_pcm_runtime *fe, int stream) |
01d7584c LG |
1448 | { |
1449 | struct snd_soc_dpcm *dpcm; | |
1450 | int err, count = 0; | |
1451 | ||
1452 | /* only startup BE DAIs that are either sinks or sources to this FE DAI */ | |
1453 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { | |
1454 | ||
1455 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
1456 | struct snd_pcm_substream *be_substream = | |
1457 | snd_soc_dpcm_get_substream(be, stream); | |
1458 | ||
2062b4c5 RKAL |
1459 | if (!be_substream) { |
1460 | dev_err(be->dev, "ASoC: no backend %s stream\n", | |
1461 | stream ? "capture" : "playback"); | |
1462 | continue; | |
1463 | } | |
1464 | ||
01d7584c LG |
1465 | /* is this op for this BE ? */ |
1466 | if (!snd_soc_dpcm_be_can_update(fe, be, stream)) | |
1467 | continue; | |
1468 | ||
1469 | /* first time the dpcm is open ? */ | |
1470 | if (be->dpcm[stream].users == DPCM_MAX_BE_USERS) | |
103d84a3 | 1471 | dev_err(be->dev, "ASoC: too many users %s at open %d\n", |
01d7584c LG |
1472 | stream ? "capture" : "playback", |
1473 | be->dpcm[stream].state); | |
1474 | ||
1475 | if (be->dpcm[stream].users++ != 0) | |
1476 | continue; | |
1477 | ||
1478 | if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_NEW) && | |
1479 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_CLOSE)) | |
1480 | continue; | |
1481 | ||
2062b4c5 RKAL |
1482 | dev_dbg(be->dev, "ASoC: open %s BE %s\n", |
1483 | stream ? "capture" : "playback", be->dai_link->name); | |
01d7584c LG |
1484 | |
1485 | be_substream->runtime = be->dpcm[stream].runtime; | |
1486 | err = soc_pcm_open(be_substream); | |
1487 | if (err < 0) { | |
103d84a3 | 1488 | dev_err(be->dev, "ASoC: BE open failed %d\n", err); |
01d7584c LG |
1489 | be->dpcm[stream].users--; |
1490 | if (be->dpcm[stream].users < 0) | |
103d84a3 | 1491 | dev_err(be->dev, "ASoC: no users %s at unwind %d\n", |
01d7584c LG |
1492 | stream ? "capture" : "playback", |
1493 | be->dpcm[stream].state); | |
1494 | ||
1495 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_CLOSE; | |
1496 | goto unwind; | |
1497 | } | |
1498 | ||
1499 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_OPEN; | |
1500 | count++; | |
1501 | } | |
1502 | ||
1503 | return count; | |
1504 | ||
1505 | unwind: | |
1506 | /* disable any enabled and non active backends */ | |
1507 | list_for_each_entry_continue_reverse(dpcm, &fe->dpcm[stream].be_clients, list_be) { | |
1508 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
1509 | struct snd_pcm_substream *be_substream = | |
1510 | snd_soc_dpcm_get_substream(be, stream); | |
1511 | ||
1512 | if (!snd_soc_dpcm_be_can_update(fe, be, stream)) | |
1513 | continue; | |
1514 | ||
1515 | if (be->dpcm[stream].users == 0) | |
103d84a3 | 1516 | dev_err(be->dev, "ASoC: no users %s at close %d\n", |
01d7584c LG |
1517 | stream ? "capture" : "playback", |
1518 | be->dpcm[stream].state); | |
1519 | ||
1520 | if (--be->dpcm[stream].users != 0) | |
1521 | continue; | |
1522 | ||
1523 | if (be->dpcm[stream].state != SND_SOC_DPCM_STATE_OPEN) | |
1524 | continue; | |
1525 | ||
1526 | soc_pcm_close(be_substream); | |
1527 | be_substream->runtime = NULL; | |
1528 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_CLOSE; | |
1529 | } | |
1530 | ||
1531 | return err; | |
1532 | } | |
1533 | ||
08ae9b45 | 1534 | static void dpcm_init_runtime_hw(struct snd_pcm_runtime *runtime, |
b073ed4e KM |
1535 | struct snd_soc_pcm_stream *stream, |
1536 | u64 formats) | |
08ae9b45 LPC |
1537 | { |
1538 | runtime->hw.rate_min = stream->rate_min; | |
1539 | runtime->hw.rate_max = stream->rate_max; | |
1540 | runtime->hw.channels_min = stream->channels_min; | |
1541 | runtime->hw.channels_max = stream->channels_max; | |
002220a9 | 1542 | if (runtime->hw.formats) |
b073ed4e | 1543 | runtime->hw.formats &= formats & stream->formats; |
002220a9 | 1544 | else |
b073ed4e | 1545 | runtime->hw.formats = formats & stream->formats; |
08ae9b45 LPC |
1546 | runtime->hw.rates = stream->rates; |
1547 | } | |
1548 | ||
b073ed4e KM |
1549 | static u64 dpcm_runtime_base_format(struct snd_pcm_substream *substream) |
1550 | { | |
1551 | struct snd_soc_pcm_runtime *fe = substream->private_data; | |
1552 | struct snd_soc_dpcm *dpcm; | |
1553 | u64 formats = ULLONG_MAX; | |
1554 | int stream = substream->stream; | |
1555 | ||
1556 | if (!fe->dai_link->dpcm_merged_format) | |
1557 | return formats; | |
1558 | ||
1559 | /* | |
1560 | * It returns merged BE codec format | |
1561 | * if FE want to use it (= dpcm_merged_format) | |
1562 | */ | |
1563 | ||
1564 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { | |
1565 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
1566 | struct snd_soc_dai_driver *codec_dai_drv; | |
1567 | struct snd_soc_pcm_stream *codec_stream; | |
1568 | int i; | |
1569 | ||
1570 | for (i = 0; i < be->num_codecs; i++) { | |
1571 | codec_dai_drv = be->codec_dais[i]->driver; | |
1572 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) | |
1573 | codec_stream = &codec_dai_drv->playback; | |
1574 | else | |
1575 | codec_stream = &codec_dai_drv->capture; | |
1576 | ||
1577 | formats &= codec_stream->formats; | |
1578 | } | |
1579 | } | |
1580 | ||
1581 | return formats; | |
1582 | } | |
1583 | ||
45c0a188 | 1584 | static void dpcm_set_fe_runtime(struct snd_pcm_substream *substream) |
01d7584c LG |
1585 | { |
1586 | struct snd_pcm_runtime *runtime = substream->runtime; | |
1587 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
1588 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
1589 | struct snd_soc_dai_driver *cpu_dai_drv = cpu_dai->driver; | |
b073ed4e | 1590 | u64 format = dpcm_runtime_base_format(substream); |
01d7584c | 1591 | |
08ae9b45 | 1592 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) |
b073ed4e | 1593 | dpcm_init_runtime_hw(runtime, &cpu_dai_drv->playback, format); |
08ae9b45 | 1594 | else |
b073ed4e | 1595 | dpcm_init_runtime_hw(runtime, &cpu_dai_drv->capture, format); |
01d7584c LG |
1596 | } |
1597 | ||
ea9d0d77 TI |
1598 | static int dpcm_fe_dai_do_trigger(struct snd_pcm_substream *substream, int cmd); |
1599 | ||
1600 | /* Set FE's runtime_update state; the state is protected via PCM stream lock | |
1601 | * for avoiding the race with trigger callback. | |
1602 | * If the state is unset and a trigger is pending while the previous operation, | |
1603 | * process the pending trigger action here. | |
1604 | */ | |
1605 | static void dpcm_set_fe_update_state(struct snd_soc_pcm_runtime *fe, | |
1606 | int stream, enum snd_soc_dpcm_update state) | |
1607 | { | |
1608 | struct snd_pcm_substream *substream = | |
1609 | snd_soc_dpcm_get_substream(fe, stream); | |
1610 | ||
1611 | snd_pcm_stream_lock_irq(substream); | |
1612 | if (state == SND_SOC_DPCM_UPDATE_NO && fe->dpcm[stream].trigger_pending) { | |
1613 | dpcm_fe_dai_do_trigger(substream, | |
1614 | fe->dpcm[stream].trigger_pending - 1); | |
1615 | fe->dpcm[stream].trigger_pending = 0; | |
1616 | } | |
1617 | fe->dpcm[stream].runtime_update = state; | |
1618 | snd_pcm_stream_unlock_irq(substream); | |
1619 | } | |
1620 | ||
01d7584c LG |
1621 | static int dpcm_fe_dai_startup(struct snd_pcm_substream *fe_substream) |
1622 | { | |
1623 | struct snd_soc_pcm_runtime *fe = fe_substream->private_data; | |
1624 | struct snd_pcm_runtime *runtime = fe_substream->runtime; | |
1625 | int stream = fe_substream->stream, ret = 0; | |
1626 | ||
ea9d0d77 | 1627 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_FE); |
01d7584c LG |
1628 | |
1629 | ret = dpcm_be_dai_startup(fe, fe_substream->stream); | |
1630 | if (ret < 0) { | |
103d84a3 | 1631 | dev_err(fe->dev,"ASoC: failed to start some BEs %d\n", ret); |
01d7584c LG |
1632 | goto be_err; |
1633 | } | |
1634 | ||
103d84a3 | 1635 | dev_dbg(fe->dev, "ASoC: open FE %s\n", fe->dai_link->name); |
01d7584c LG |
1636 | |
1637 | /* start the DAI frontend */ | |
1638 | ret = soc_pcm_open(fe_substream); | |
1639 | if (ret < 0) { | |
103d84a3 | 1640 | dev_err(fe->dev,"ASoC: failed to start FE %d\n", ret); |
01d7584c LG |
1641 | goto unwind; |
1642 | } | |
1643 | ||
1644 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_OPEN; | |
1645 | ||
1646 | dpcm_set_fe_runtime(fe_substream); | |
1647 | snd_pcm_limit_hw_rates(runtime); | |
1648 | ||
ea9d0d77 | 1649 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_NO); |
01d7584c LG |
1650 | return 0; |
1651 | ||
1652 | unwind: | |
1653 | dpcm_be_dai_startup_unwind(fe, fe_substream->stream); | |
1654 | be_err: | |
ea9d0d77 | 1655 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_NO); |
01d7584c LG |
1656 | return ret; |
1657 | } | |
1658 | ||
23607025 | 1659 | int dpcm_be_dai_shutdown(struct snd_soc_pcm_runtime *fe, int stream) |
01d7584c LG |
1660 | { |
1661 | struct snd_soc_dpcm *dpcm; | |
1662 | ||
1663 | /* only shutdown BEs that are either sinks or sources to this FE DAI */ | |
1664 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { | |
1665 | ||
1666 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
1667 | struct snd_pcm_substream *be_substream = | |
1668 | snd_soc_dpcm_get_substream(be, stream); | |
1669 | ||
1670 | /* is this op for this BE ? */ | |
1671 | if (!snd_soc_dpcm_be_can_update(fe, be, stream)) | |
1672 | continue; | |
1673 | ||
1674 | if (be->dpcm[stream].users == 0) | |
103d84a3 | 1675 | dev_err(be->dev, "ASoC: no users %s at close - state %d\n", |
01d7584c LG |
1676 | stream ? "capture" : "playback", |
1677 | be->dpcm[stream].state); | |
1678 | ||
1679 | if (--be->dpcm[stream].users != 0) | |
1680 | continue; | |
1681 | ||
1682 | if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_FREE) && | |
1683 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_OPEN)) | |
1684 | continue; | |
1685 | ||
103d84a3 | 1686 | dev_dbg(be->dev, "ASoC: close BE %s\n", |
01d7584c LG |
1687 | dpcm->fe->dai_link->name); |
1688 | ||
1689 | soc_pcm_close(be_substream); | |
1690 | be_substream->runtime = NULL; | |
1691 | ||
1692 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_CLOSE; | |
1693 | } | |
1694 | return 0; | |
1695 | } | |
1696 | ||
1697 | static int dpcm_fe_dai_shutdown(struct snd_pcm_substream *substream) | |
1698 | { | |
1699 | struct snd_soc_pcm_runtime *fe = substream->private_data; | |
1700 | int stream = substream->stream; | |
1701 | ||
ea9d0d77 | 1702 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_FE); |
01d7584c LG |
1703 | |
1704 | /* shutdown the BEs */ | |
1705 | dpcm_be_dai_shutdown(fe, substream->stream); | |
1706 | ||
103d84a3 | 1707 | dev_dbg(fe->dev, "ASoC: close FE %s\n", fe->dai_link->name); |
01d7584c LG |
1708 | |
1709 | /* now shutdown the frontend */ | |
1710 | soc_pcm_close(substream); | |
1711 | ||
1712 | /* run the stream event for each BE */ | |
1713 | dpcm_dapm_stream_event(fe, stream, SND_SOC_DAPM_STREAM_STOP); | |
1714 | ||
1715 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_CLOSE; | |
ea9d0d77 | 1716 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_NO); |
01d7584c LG |
1717 | return 0; |
1718 | } | |
1719 | ||
23607025 | 1720 | int dpcm_be_dai_hw_free(struct snd_soc_pcm_runtime *fe, int stream) |
01d7584c LG |
1721 | { |
1722 | struct snd_soc_dpcm *dpcm; | |
1723 | ||
1724 | /* only hw_params backends that are either sinks or sources | |
1725 | * to this frontend DAI */ | |
1726 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { | |
1727 | ||
1728 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
1729 | struct snd_pcm_substream *be_substream = | |
1730 | snd_soc_dpcm_get_substream(be, stream); | |
1731 | ||
1732 | /* is this op for this BE ? */ | |
1733 | if (!snd_soc_dpcm_be_can_update(fe, be, stream)) | |
1734 | continue; | |
1735 | ||
1736 | /* only free hw when no longer used - check all FEs */ | |
1737 | if (!snd_soc_dpcm_can_be_free_stop(fe, be, stream)) | |
1738 | continue; | |
1739 | ||
36fba62c QZ |
1740 | /* do not free hw if this BE is used by other FE */ |
1741 | if (be->dpcm[stream].users > 1) | |
1742 | continue; | |
1743 | ||
01d7584c LG |
1744 | if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_PARAMS) && |
1745 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_PREPARE) && | |
1746 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_FREE) && | |
08b27848 | 1747 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_PAUSED) && |
01d7584c LG |
1748 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_STOP)) |
1749 | continue; | |
1750 | ||
103d84a3 | 1751 | dev_dbg(be->dev, "ASoC: hw_free BE %s\n", |
01d7584c LG |
1752 | dpcm->fe->dai_link->name); |
1753 | ||
1754 | soc_pcm_hw_free(be_substream); | |
1755 | ||
1756 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_HW_FREE; | |
1757 | } | |
1758 | ||
1759 | return 0; | |
1760 | } | |
1761 | ||
45c0a188 | 1762 | static int dpcm_fe_dai_hw_free(struct snd_pcm_substream *substream) |
01d7584c LG |
1763 | { |
1764 | struct snd_soc_pcm_runtime *fe = substream->private_data; | |
1765 | int err, stream = substream->stream; | |
1766 | ||
1767 | mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME); | |
ea9d0d77 | 1768 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_FE); |
01d7584c | 1769 | |
103d84a3 | 1770 | dev_dbg(fe->dev, "ASoC: hw_free FE %s\n", fe->dai_link->name); |
01d7584c LG |
1771 | |
1772 | /* call hw_free on the frontend */ | |
1773 | err = soc_pcm_hw_free(substream); | |
1774 | if (err < 0) | |
103d84a3 | 1775 | dev_err(fe->dev,"ASoC: hw_free FE %s failed\n", |
01d7584c LG |
1776 | fe->dai_link->name); |
1777 | ||
1778 | /* only hw_params backends that are either sinks or sources | |
1779 | * to this frontend DAI */ | |
1780 | err = dpcm_be_dai_hw_free(fe, stream); | |
1781 | ||
1782 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_HW_FREE; | |
ea9d0d77 | 1783 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_NO); |
01d7584c LG |
1784 | |
1785 | mutex_unlock(&fe->card->mutex); | |
1786 | return 0; | |
1787 | } | |
1788 | ||
23607025 | 1789 | int dpcm_be_dai_hw_params(struct snd_soc_pcm_runtime *fe, int stream) |
01d7584c LG |
1790 | { |
1791 | struct snd_soc_dpcm *dpcm; | |
1792 | int ret; | |
1793 | ||
1794 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { | |
1795 | ||
1796 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
1797 | struct snd_pcm_substream *be_substream = | |
1798 | snd_soc_dpcm_get_substream(be, stream); | |
1799 | ||
1800 | /* is this op for this BE ? */ | |
1801 | if (!snd_soc_dpcm_be_can_update(fe, be, stream)) | |
1802 | continue; | |
1803 | ||
1804 | /* only allow hw_params() if no connected FEs are running */ | |
1805 | if (!snd_soc_dpcm_can_be_params(fe, be, stream)) | |
1806 | continue; | |
1807 | ||
1808 | if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_OPEN) && | |
1809 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_PARAMS) && | |
1810 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_FREE)) | |
1811 | continue; | |
1812 | ||
103d84a3 | 1813 | dev_dbg(be->dev, "ASoC: hw_params BE %s\n", |
01d7584c LG |
1814 | dpcm->fe->dai_link->name); |
1815 | ||
1816 | /* copy params for each dpcm */ | |
1817 | memcpy(&dpcm->hw_params, &fe->dpcm[stream].hw_params, | |
1818 | sizeof(struct snd_pcm_hw_params)); | |
1819 | ||
1820 | /* perform any hw_params fixups */ | |
1821 | if (be->dai_link->be_hw_params_fixup) { | |
1822 | ret = be->dai_link->be_hw_params_fixup(be, | |
1823 | &dpcm->hw_params); | |
1824 | if (ret < 0) { | |
1825 | dev_err(be->dev, | |
103d84a3 | 1826 | "ASoC: hw_params BE fixup failed %d\n", |
01d7584c LG |
1827 | ret); |
1828 | goto unwind; | |
1829 | } | |
1830 | } | |
1831 | ||
1832 | ret = soc_pcm_hw_params(be_substream, &dpcm->hw_params); | |
1833 | if (ret < 0) { | |
1834 | dev_err(dpcm->be->dev, | |
103d84a3 | 1835 | "ASoC: hw_params BE failed %d\n", ret); |
01d7584c LG |
1836 | goto unwind; |
1837 | } | |
1838 | ||
1839 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_HW_PARAMS; | |
1840 | } | |
1841 | return 0; | |
1842 | ||
1843 | unwind: | |
1844 | /* disable any enabled and non active backends */ | |
1845 | list_for_each_entry_continue_reverse(dpcm, &fe->dpcm[stream].be_clients, list_be) { | |
1846 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
1847 | struct snd_pcm_substream *be_substream = | |
1848 | snd_soc_dpcm_get_substream(be, stream); | |
1849 | ||
1850 | if (!snd_soc_dpcm_be_can_update(fe, be, stream)) | |
1851 | continue; | |
1852 | ||
1853 | /* only allow hw_free() if no connected FEs are running */ | |
1854 | if (!snd_soc_dpcm_can_be_free_stop(fe, be, stream)) | |
1855 | continue; | |
1856 | ||
1857 | if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_OPEN) && | |
1858 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_PARAMS) && | |
1859 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_FREE) && | |
1860 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_STOP)) | |
1861 | continue; | |
1862 | ||
1863 | soc_pcm_hw_free(be_substream); | |
1864 | } | |
1865 | ||
1866 | return ret; | |
1867 | } | |
1868 | ||
45c0a188 MB |
1869 | static int dpcm_fe_dai_hw_params(struct snd_pcm_substream *substream, |
1870 | struct snd_pcm_hw_params *params) | |
01d7584c LG |
1871 | { |
1872 | struct snd_soc_pcm_runtime *fe = substream->private_data; | |
1873 | int ret, stream = substream->stream; | |
1874 | ||
1875 | mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME); | |
ea9d0d77 | 1876 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_FE); |
01d7584c LG |
1877 | |
1878 | memcpy(&fe->dpcm[substream->stream].hw_params, params, | |
1879 | sizeof(struct snd_pcm_hw_params)); | |
1880 | ret = dpcm_be_dai_hw_params(fe, substream->stream); | |
1881 | if (ret < 0) { | |
103d84a3 | 1882 | dev_err(fe->dev,"ASoC: hw_params BE failed %d\n", ret); |
01d7584c LG |
1883 | goto out; |
1884 | } | |
1885 | ||
103d84a3 | 1886 | dev_dbg(fe->dev, "ASoC: hw_params FE %s rate %d chan %x fmt %d\n", |
01d7584c LG |
1887 | fe->dai_link->name, params_rate(params), |
1888 | params_channels(params), params_format(params)); | |
1889 | ||
1890 | /* call hw_params on the frontend */ | |
1891 | ret = soc_pcm_hw_params(substream, params); | |
1892 | if (ret < 0) { | |
103d84a3 | 1893 | dev_err(fe->dev,"ASoC: hw_params FE failed %d\n", ret); |
01d7584c LG |
1894 | dpcm_be_dai_hw_free(fe, stream); |
1895 | } else | |
1896 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_HW_PARAMS; | |
1897 | ||
1898 | out: | |
ea9d0d77 | 1899 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_NO); |
01d7584c LG |
1900 | mutex_unlock(&fe->card->mutex); |
1901 | return ret; | |
1902 | } | |
1903 | ||
1904 | static int dpcm_do_trigger(struct snd_soc_dpcm *dpcm, | |
1905 | struct snd_pcm_substream *substream, int cmd) | |
1906 | { | |
1907 | int ret; | |
1908 | ||
103d84a3 | 1909 | dev_dbg(dpcm->be->dev, "ASoC: trigger BE %s cmd %d\n", |
01d7584c LG |
1910 | dpcm->fe->dai_link->name, cmd); |
1911 | ||
1912 | ret = soc_pcm_trigger(substream, cmd); | |
1913 | if (ret < 0) | |
103d84a3 | 1914 | dev_err(dpcm->be->dev,"ASoC: trigger BE failed %d\n", ret); |
01d7584c LG |
1915 | |
1916 | return ret; | |
1917 | } | |
1918 | ||
23607025 | 1919 | int dpcm_be_dai_trigger(struct snd_soc_pcm_runtime *fe, int stream, |
45c0a188 | 1920 | int cmd) |
01d7584c LG |
1921 | { |
1922 | struct snd_soc_dpcm *dpcm; | |
1923 | int ret = 0; | |
1924 | ||
1925 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { | |
1926 | ||
1927 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
1928 | struct snd_pcm_substream *be_substream = | |
1929 | snd_soc_dpcm_get_substream(be, stream); | |
1930 | ||
1931 | /* is this op for this BE ? */ | |
1932 | if (!snd_soc_dpcm_be_can_update(fe, be, stream)) | |
1933 | continue; | |
1934 | ||
1935 | switch (cmd) { | |
1936 | case SNDRV_PCM_TRIGGER_START: | |
1937 | if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_PREPARE) && | |
1938 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_STOP)) | |
1939 | continue; | |
1940 | ||
1941 | ret = dpcm_do_trigger(dpcm, be_substream, cmd); | |
1942 | if (ret) | |
1943 | return ret; | |
1944 | ||
1945 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_START; | |
1946 | break; | |
1947 | case SNDRV_PCM_TRIGGER_RESUME: | |
1948 | if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_SUSPEND)) | |
1949 | continue; | |
1950 | ||
1951 | ret = dpcm_do_trigger(dpcm, be_substream, cmd); | |
1952 | if (ret) | |
1953 | return ret; | |
1954 | ||
1955 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_START; | |
1956 | break; | |
1957 | case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: | |
1958 | if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_PAUSED)) | |
1959 | continue; | |
1960 | ||
1961 | ret = dpcm_do_trigger(dpcm, be_substream, cmd); | |
1962 | if (ret) | |
1963 | return ret; | |
1964 | ||
1965 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_START; | |
1966 | break; | |
1967 | case SNDRV_PCM_TRIGGER_STOP: | |
1968 | if (be->dpcm[stream].state != SND_SOC_DPCM_STATE_START) | |
1969 | continue; | |
1970 | ||
1971 | if (!snd_soc_dpcm_can_be_free_stop(fe, be, stream)) | |
1972 | continue; | |
1973 | ||
1974 | ret = dpcm_do_trigger(dpcm, be_substream, cmd); | |
1975 | if (ret) | |
1976 | return ret; | |
1977 | ||
1978 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_STOP; | |
1979 | break; | |
1980 | case SNDRV_PCM_TRIGGER_SUSPEND: | |
868a6ca8 | 1981 | if (be->dpcm[stream].state != SND_SOC_DPCM_STATE_START) |
01d7584c LG |
1982 | continue; |
1983 | ||
1984 | if (!snd_soc_dpcm_can_be_free_stop(fe, be, stream)) | |
1985 | continue; | |
1986 | ||
1987 | ret = dpcm_do_trigger(dpcm, be_substream, cmd); | |
1988 | if (ret) | |
1989 | return ret; | |
1990 | ||
1991 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_SUSPEND; | |
1992 | break; | |
1993 | case SNDRV_PCM_TRIGGER_PAUSE_PUSH: | |
1994 | if (be->dpcm[stream].state != SND_SOC_DPCM_STATE_START) | |
1995 | continue; | |
1996 | ||
1997 | if (!snd_soc_dpcm_can_be_free_stop(fe, be, stream)) | |
1998 | continue; | |
1999 | ||
2000 | ret = dpcm_do_trigger(dpcm, be_substream, cmd); | |
2001 | if (ret) | |
2002 | return ret; | |
2003 | ||
2004 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_PAUSED; | |
2005 | break; | |
2006 | } | |
2007 | } | |
2008 | ||
2009 | return ret; | |
2010 | } | |
2011 | EXPORT_SYMBOL_GPL(dpcm_be_dai_trigger); | |
2012 | ||
ea9d0d77 | 2013 | static int dpcm_fe_dai_do_trigger(struct snd_pcm_substream *substream, int cmd) |
01d7584c LG |
2014 | { |
2015 | struct snd_soc_pcm_runtime *fe = substream->private_data; | |
2016 | int stream = substream->stream, ret; | |
2017 | enum snd_soc_dpcm_trigger trigger = fe->dai_link->trigger[stream]; | |
2018 | ||
2019 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_FE; | |
2020 | ||
2021 | switch (trigger) { | |
2022 | case SND_SOC_DPCM_TRIGGER_PRE: | |
2023 | /* call trigger on the frontend before the backend. */ | |
2024 | ||
103d84a3 | 2025 | dev_dbg(fe->dev, "ASoC: pre trigger FE %s cmd %d\n", |
01d7584c LG |
2026 | fe->dai_link->name, cmd); |
2027 | ||
2028 | ret = soc_pcm_trigger(substream, cmd); | |
2029 | if (ret < 0) { | |
103d84a3 | 2030 | dev_err(fe->dev,"ASoC: trigger FE failed %d\n", ret); |
01d7584c LG |
2031 | goto out; |
2032 | } | |
2033 | ||
2034 | ret = dpcm_be_dai_trigger(fe, substream->stream, cmd); | |
2035 | break; | |
2036 | case SND_SOC_DPCM_TRIGGER_POST: | |
2037 | /* call trigger on the frontend after the backend. */ | |
2038 | ||
2039 | ret = dpcm_be_dai_trigger(fe, substream->stream, cmd); | |
2040 | if (ret < 0) { | |
103d84a3 | 2041 | dev_err(fe->dev,"ASoC: trigger FE failed %d\n", ret); |
01d7584c LG |
2042 | goto out; |
2043 | } | |
2044 | ||
103d84a3 | 2045 | dev_dbg(fe->dev, "ASoC: post trigger FE %s cmd %d\n", |
01d7584c LG |
2046 | fe->dai_link->name, cmd); |
2047 | ||
2048 | ret = soc_pcm_trigger(substream, cmd); | |
2049 | break; | |
07bf84aa LG |
2050 | case SND_SOC_DPCM_TRIGGER_BESPOKE: |
2051 | /* bespoke trigger() - handles both FE and BEs */ | |
2052 | ||
103d84a3 | 2053 | dev_dbg(fe->dev, "ASoC: bespoke trigger FE %s cmd %d\n", |
07bf84aa LG |
2054 | fe->dai_link->name, cmd); |
2055 | ||
2056 | ret = soc_pcm_bespoke_trigger(substream, cmd); | |
2057 | if (ret < 0) { | |
103d84a3 | 2058 | dev_err(fe->dev,"ASoC: trigger FE failed %d\n", ret); |
07bf84aa LG |
2059 | goto out; |
2060 | } | |
2061 | break; | |
01d7584c | 2062 | default: |
103d84a3 | 2063 | dev_err(fe->dev, "ASoC: invalid trigger cmd %d for %s\n", cmd, |
01d7584c LG |
2064 | fe->dai_link->name); |
2065 | ret = -EINVAL; | |
2066 | goto out; | |
2067 | } | |
2068 | ||
2069 | switch (cmd) { | |
2070 | case SNDRV_PCM_TRIGGER_START: | |
2071 | case SNDRV_PCM_TRIGGER_RESUME: | |
2072 | case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: | |
2073 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_START; | |
2074 | break; | |
2075 | case SNDRV_PCM_TRIGGER_STOP: | |
2076 | case SNDRV_PCM_TRIGGER_SUSPEND: | |
2077 | case SNDRV_PCM_TRIGGER_PAUSE_PUSH: | |
2078 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_STOP; | |
2079 | break; | |
2080 | } | |
2081 | ||
2082 | out: | |
2083 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO; | |
2084 | return ret; | |
2085 | } | |
2086 | ||
ea9d0d77 TI |
2087 | static int dpcm_fe_dai_trigger(struct snd_pcm_substream *substream, int cmd) |
2088 | { | |
2089 | struct snd_soc_pcm_runtime *fe = substream->private_data; | |
2090 | int stream = substream->stream; | |
2091 | ||
2092 | /* if FE's runtime_update is already set, we're in race; | |
2093 | * process this trigger later at exit | |
2094 | */ | |
2095 | if (fe->dpcm[stream].runtime_update != SND_SOC_DPCM_UPDATE_NO) { | |
2096 | fe->dpcm[stream].trigger_pending = cmd + 1; | |
2097 | return 0; /* delayed, assuming it's successful */ | |
2098 | } | |
2099 | ||
2100 | /* we're alone, let's trigger */ | |
2101 | return dpcm_fe_dai_do_trigger(substream, cmd); | |
2102 | } | |
2103 | ||
23607025 | 2104 | int dpcm_be_dai_prepare(struct snd_soc_pcm_runtime *fe, int stream) |
01d7584c LG |
2105 | { |
2106 | struct snd_soc_dpcm *dpcm; | |
2107 | int ret = 0; | |
2108 | ||
2109 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { | |
2110 | ||
2111 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
2112 | struct snd_pcm_substream *be_substream = | |
2113 | snd_soc_dpcm_get_substream(be, stream); | |
2114 | ||
2115 | /* is this op for this BE ? */ | |
2116 | if (!snd_soc_dpcm_be_can_update(fe, be, stream)) | |
2117 | continue; | |
2118 | ||
2119 | if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_PARAMS) && | |
2120 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_STOP)) | |
2121 | continue; | |
2122 | ||
103d84a3 | 2123 | dev_dbg(be->dev, "ASoC: prepare BE %s\n", |
01d7584c LG |
2124 | dpcm->fe->dai_link->name); |
2125 | ||
2126 | ret = soc_pcm_prepare(be_substream); | |
2127 | if (ret < 0) { | |
103d84a3 | 2128 | dev_err(be->dev, "ASoC: backend prepare failed %d\n", |
01d7584c LG |
2129 | ret); |
2130 | break; | |
2131 | } | |
2132 | ||
2133 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_PREPARE; | |
2134 | } | |
2135 | return ret; | |
2136 | } | |
2137 | ||
45c0a188 | 2138 | static int dpcm_fe_dai_prepare(struct snd_pcm_substream *substream) |
01d7584c LG |
2139 | { |
2140 | struct snd_soc_pcm_runtime *fe = substream->private_data; | |
2141 | int stream = substream->stream, ret = 0; | |
2142 | ||
2143 | mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME); | |
2144 | ||
103d84a3 | 2145 | dev_dbg(fe->dev, "ASoC: prepare FE %s\n", fe->dai_link->name); |
01d7584c | 2146 | |
ea9d0d77 | 2147 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_FE); |
01d7584c LG |
2148 | |
2149 | /* there is no point preparing this FE if there are no BEs */ | |
2150 | if (list_empty(&fe->dpcm[stream].be_clients)) { | |
103d84a3 | 2151 | dev_err(fe->dev, "ASoC: no backend DAIs enabled for %s\n", |
01d7584c LG |
2152 | fe->dai_link->name); |
2153 | ret = -EINVAL; | |
2154 | goto out; | |
2155 | } | |
2156 | ||
2157 | ret = dpcm_be_dai_prepare(fe, substream->stream); | |
2158 | if (ret < 0) | |
2159 | goto out; | |
2160 | ||
2161 | /* call prepare on the frontend */ | |
2162 | ret = soc_pcm_prepare(substream); | |
2163 | if (ret < 0) { | |
103d84a3 | 2164 | dev_err(fe->dev,"ASoC: prepare FE %s failed\n", |
01d7584c LG |
2165 | fe->dai_link->name); |
2166 | goto out; | |
2167 | } | |
2168 | ||
2169 | /* run the stream event for each BE */ | |
2170 | dpcm_dapm_stream_event(fe, stream, SND_SOC_DAPM_STREAM_START); | |
2171 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_PREPARE; | |
2172 | ||
2173 | out: | |
ea9d0d77 | 2174 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_NO); |
01d7584c LG |
2175 | mutex_unlock(&fe->card->mutex); |
2176 | ||
2177 | return ret; | |
2178 | } | |
2179 | ||
be3f3f2c LG |
2180 | static int soc_pcm_ioctl(struct snd_pcm_substream *substream, |
2181 | unsigned int cmd, void *arg) | |
2182 | { | |
2183 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
2184 | struct snd_soc_platform *platform = rtd->platform; | |
2185 | ||
c5914b0a | 2186 | if (platform->driver->ops && platform->driver->ops->ioctl) |
be3f3f2c LG |
2187 | return platform->driver->ops->ioctl(substream, cmd, arg); |
2188 | return snd_pcm_lib_ioctl(substream, cmd, arg); | |
2189 | } | |
2190 | ||
618dae11 LG |
2191 | static int dpcm_run_update_shutdown(struct snd_soc_pcm_runtime *fe, int stream) |
2192 | { | |
07bf84aa LG |
2193 | struct snd_pcm_substream *substream = |
2194 | snd_soc_dpcm_get_substream(fe, stream); | |
2195 | enum snd_soc_dpcm_trigger trigger = fe->dai_link->trigger[stream]; | |
618dae11 LG |
2196 | int err; |
2197 | ||
103d84a3 | 2198 | dev_dbg(fe->dev, "ASoC: runtime %s close on FE %s\n", |
618dae11 LG |
2199 | stream ? "capture" : "playback", fe->dai_link->name); |
2200 | ||
07bf84aa LG |
2201 | if (trigger == SND_SOC_DPCM_TRIGGER_BESPOKE) { |
2202 | /* call bespoke trigger - FE takes care of all BE triggers */ | |
103d84a3 | 2203 | dev_dbg(fe->dev, "ASoC: bespoke trigger FE %s cmd stop\n", |
07bf84aa LG |
2204 | fe->dai_link->name); |
2205 | ||
2206 | err = soc_pcm_bespoke_trigger(substream, SNDRV_PCM_TRIGGER_STOP); | |
2207 | if (err < 0) | |
103d84a3 | 2208 | dev_err(fe->dev,"ASoC: trigger FE failed %d\n", err); |
07bf84aa | 2209 | } else { |
103d84a3 | 2210 | dev_dbg(fe->dev, "ASoC: trigger FE %s cmd stop\n", |
07bf84aa LG |
2211 | fe->dai_link->name); |
2212 | ||
2213 | err = dpcm_be_dai_trigger(fe, stream, SNDRV_PCM_TRIGGER_STOP); | |
2214 | if (err < 0) | |
103d84a3 | 2215 | dev_err(fe->dev,"ASoC: trigger FE failed %d\n", err); |
07bf84aa | 2216 | } |
618dae11 LG |
2217 | |
2218 | err = dpcm_be_dai_hw_free(fe, stream); | |
2219 | if (err < 0) | |
103d84a3 | 2220 | dev_err(fe->dev,"ASoC: hw_free FE failed %d\n", err); |
618dae11 LG |
2221 | |
2222 | err = dpcm_be_dai_shutdown(fe, stream); | |
2223 | if (err < 0) | |
103d84a3 | 2224 | dev_err(fe->dev,"ASoC: shutdown FE failed %d\n", err); |
618dae11 LG |
2225 | |
2226 | /* run the stream event for each BE */ | |
2227 | dpcm_dapm_stream_event(fe, stream, SND_SOC_DAPM_STREAM_NOP); | |
2228 | ||
2229 | return 0; | |
2230 | } | |
2231 | ||
2232 | static int dpcm_run_update_startup(struct snd_soc_pcm_runtime *fe, int stream) | |
2233 | { | |
07bf84aa LG |
2234 | struct snd_pcm_substream *substream = |
2235 | snd_soc_dpcm_get_substream(fe, stream); | |
618dae11 | 2236 | struct snd_soc_dpcm *dpcm; |
07bf84aa | 2237 | enum snd_soc_dpcm_trigger trigger = fe->dai_link->trigger[stream]; |
618dae11 LG |
2238 | int ret; |
2239 | ||
103d84a3 | 2240 | dev_dbg(fe->dev, "ASoC: runtime %s open on FE %s\n", |
618dae11 LG |
2241 | stream ? "capture" : "playback", fe->dai_link->name); |
2242 | ||
2243 | /* Only start the BE if the FE is ready */ | |
2244 | if (fe->dpcm[stream].state == SND_SOC_DPCM_STATE_HW_FREE || | |
2245 | fe->dpcm[stream].state == SND_SOC_DPCM_STATE_CLOSE) | |
2246 | return -EINVAL; | |
2247 | ||
2248 | /* startup must always be called for new BEs */ | |
2249 | ret = dpcm_be_dai_startup(fe, stream); | |
fffc0ca2 | 2250 | if (ret < 0) |
618dae11 | 2251 | goto disconnect; |
618dae11 LG |
2252 | |
2253 | /* keep going if FE state is > open */ | |
2254 | if (fe->dpcm[stream].state == SND_SOC_DPCM_STATE_OPEN) | |
2255 | return 0; | |
01d7584c | 2256 | |
618dae11 | 2257 | ret = dpcm_be_dai_hw_params(fe, stream); |
fffc0ca2 | 2258 | if (ret < 0) |
618dae11 | 2259 | goto close; |
618dae11 LG |
2260 | |
2261 | /* keep going if FE state is > hw_params */ | |
2262 | if (fe->dpcm[stream].state == SND_SOC_DPCM_STATE_HW_PARAMS) | |
2263 | return 0; | |
2264 | ||
2265 | ||
2266 | ret = dpcm_be_dai_prepare(fe, stream); | |
fffc0ca2 | 2267 | if (ret < 0) |
618dae11 | 2268 | goto hw_free; |
618dae11 LG |
2269 | |
2270 | /* run the stream event for each BE */ | |
2271 | dpcm_dapm_stream_event(fe, stream, SND_SOC_DAPM_STREAM_NOP); | |
2272 | ||
2273 | /* keep going if FE state is > prepare */ | |
2274 | if (fe->dpcm[stream].state == SND_SOC_DPCM_STATE_PREPARE || | |
2275 | fe->dpcm[stream].state == SND_SOC_DPCM_STATE_STOP) | |
2276 | return 0; | |
2277 | ||
07bf84aa LG |
2278 | if (trigger == SND_SOC_DPCM_TRIGGER_BESPOKE) { |
2279 | /* call trigger on the frontend - FE takes care of all BE triggers */ | |
103d84a3 | 2280 | dev_dbg(fe->dev, "ASoC: bespoke trigger FE %s cmd start\n", |
07bf84aa | 2281 | fe->dai_link->name); |
618dae11 | 2282 | |
07bf84aa LG |
2283 | ret = soc_pcm_bespoke_trigger(substream, SNDRV_PCM_TRIGGER_START); |
2284 | if (ret < 0) { | |
103d84a3 | 2285 | dev_err(fe->dev,"ASoC: bespoke trigger FE failed %d\n", ret); |
07bf84aa LG |
2286 | goto hw_free; |
2287 | } | |
2288 | } else { | |
103d84a3 | 2289 | dev_dbg(fe->dev, "ASoC: trigger FE %s cmd start\n", |
07bf84aa LG |
2290 | fe->dai_link->name); |
2291 | ||
2292 | ret = dpcm_be_dai_trigger(fe, stream, | |
2293 | SNDRV_PCM_TRIGGER_START); | |
2294 | if (ret < 0) { | |
103d84a3 | 2295 | dev_err(fe->dev,"ASoC: trigger FE failed %d\n", ret); |
07bf84aa LG |
2296 | goto hw_free; |
2297 | } | |
618dae11 LG |
2298 | } |
2299 | ||
2300 | return 0; | |
2301 | ||
2302 | hw_free: | |
2303 | dpcm_be_dai_hw_free(fe, stream); | |
2304 | close: | |
2305 | dpcm_be_dai_shutdown(fe, stream); | |
2306 | disconnect: | |
2307 | /* disconnect any non started BEs */ | |
2308 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { | |
2309 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
2310 | if (be->dpcm[stream].state != SND_SOC_DPCM_STATE_START) | |
2311 | dpcm->state = SND_SOC_DPCM_LINK_STATE_FREE; | |
2312 | } | |
2313 | ||
2314 | return ret; | |
2315 | } | |
2316 | ||
2317 | static int dpcm_run_new_update(struct snd_soc_pcm_runtime *fe, int stream) | |
2318 | { | |
2319 | int ret; | |
2320 | ||
ea9d0d77 | 2321 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_BE); |
618dae11 LG |
2322 | ret = dpcm_run_update_startup(fe, stream); |
2323 | if (ret < 0) | |
103d84a3 | 2324 | dev_err(fe->dev, "ASoC: failed to startup some BEs\n"); |
ea9d0d77 | 2325 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_NO); |
618dae11 LG |
2326 | |
2327 | return ret; | |
2328 | } | |
2329 | ||
2330 | static int dpcm_run_old_update(struct snd_soc_pcm_runtime *fe, int stream) | |
2331 | { | |
2332 | int ret; | |
2333 | ||
ea9d0d77 | 2334 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_BE); |
618dae11 LG |
2335 | ret = dpcm_run_update_shutdown(fe, stream); |
2336 | if (ret < 0) | |
103d84a3 | 2337 | dev_err(fe->dev, "ASoC: failed to shutdown some BEs\n"); |
ea9d0d77 | 2338 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_NO); |
618dae11 LG |
2339 | |
2340 | return ret; | |
2341 | } | |
2342 | ||
2343 | /* Called by DAPM mixer/mux changes to update audio routing between PCMs and | |
2344 | * any DAI links. | |
2345 | */ | |
c3f48ae6 | 2346 | int soc_dpcm_runtime_update(struct snd_soc_card *card) |
618dae11 | 2347 | { |
618dae11 LG |
2348 | int i, old, new, paths; |
2349 | ||
618dae11 LG |
2350 | mutex_lock_nested(&card->mutex, SND_SOC_CARD_CLASS_RUNTIME); |
2351 | for (i = 0; i < card->num_rtd; i++) { | |
2352 | struct snd_soc_dapm_widget_list *list; | |
2353 | struct snd_soc_pcm_runtime *fe = &card->rtd[i]; | |
2354 | ||
2355 | /* make sure link is FE */ | |
2356 | if (!fe->dai_link->dynamic) | |
2357 | continue; | |
2358 | ||
2359 | /* only check active links */ | |
2360 | if (!fe->cpu_dai->active) | |
2361 | continue; | |
2362 | ||
2363 | /* DAPM sync will call this to update DSP paths */ | |
103d84a3 | 2364 | dev_dbg(fe->dev, "ASoC: DPCM runtime update for FE %s\n", |
618dae11 LG |
2365 | fe->dai_link->name); |
2366 | ||
2367 | /* skip if FE doesn't have playback capability */ | |
075207d2 QZ |
2368 | if (!fe->cpu_dai->driver->playback.channels_min |
2369 | || !fe->codec_dai->driver->playback.channels_min) | |
2370 | goto capture; | |
2371 | ||
2372 | /* skip if FE isn't currently playing */ | |
2373 | if (!fe->cpu_dai->playback_active | |
2374 | || !fe->codec_dai->playback_active) | |
618dae11 LG |
2375 | goto capture; |
2376 | ||
2377 | paths = dpcm_path_get(fe, SNDRV_PCM_STREAM_PLAYBACK, &list); | |
2378 | if (paths < 0) { | |
103d84a3 | 2379 | dev_warn(fe->dev, "ASoC: %s no valid %s path\n", |
618dae11 LG |
2380 | fe->dai_link->name, "playback"); |
2381 | mutex_unlock(&card->mutex); | |
2382 | return paths; | |
2383 | } | |
2384 | ||
2385 | /* update any new playback paths */ | |
2386 | new = dpcm_process_paths(fe, SNDRV_PCM_STREAM_PLAYBACK, &list, 1); | |
2387 | if (new) { | |
2388 | dpcm_run_new_update(fe, SNDRV_PCM_STREAM_PLAYBACK); | |
2389 | dpcm_clear_pending_state(fe, SNDRV_PCM_STREAM_PLAYBACK); | |
2390 | dpcm_be_disconnect(fe, SNDRV_PCM_STREAM_PLAYBACK); | |
2391 | } | |
2392 | ||
2393 | /* update any old playback paths */ | |
2394 | old = dpcm_process_paths(fe, SNDRV_PCM_STREAM_PLAYBACK, &list, 0); | |
2395 | if (old) { | |
2396 | dpcm_run_old_update(fe, SNDRV_PCM_STREAM_PLAYBACK); | |
2397 | dpcm_clear_pending_state(fe, SNDRV_PCM_STREAM_PLAYBACK); | |
2398 | dpcm_be_disconnect(fe, SNDRV_PCM_STREAM_PLAYBACK); | |
2399 | } | |
2400 | ||
7ed9de76 | 2401 | dpcm_path_put(&list); |
618dae11 LG |
2402 | capture: |
2403 | /* skip if FE doesn't have capture capability */ | |
075207d2 QZ |
2404 | if (!fe->cpu_dai->driver->capture.channels_min |
2405 | || !fe->codec_dai->driver->capture.channels_min) | |
2406 | continue; | |
2407 | ||
2408 | /* skip if FE isn't currently capturing */ | |
2409 | if (!fe->cpu_dai->capture_active | |
2410 | || !fe->codec_dai->capture_active) | |
618dae11 LG |
2411 | continue; |
2412 | ||
2413 | paths = dpcm_path_get(fe, SNDRV_PCM_STREAM_CAPTURE, &list); | |
2414 | if (paths < 0) { | |
103d84a3 | 2415 | dev_warn(fe->dev, "ASoC: %s no valid %s path\n", |
618dae11 LG |
2416 | fe->dai_link->name, "capture"); |
2417 | mutex_unlock(&card->mutex); | |
2418 | return paths; | |
2419 | } | |
2420 | ||
2421 | /* update any new capture paths */ | |
2422 | new = dpcm_process_paths(fe, SNDRV_PCM_STREAM_CAPTURE, &list, 1); | |
2423 | if (new) { | |
2424 | dpcm_run_new_update(fe, SNDRV_PCM_STREAM_CAPTURE); | |
2425 | dpcm_clear_pending_state(fe, SNDRV_PCM_STREAM_CAPTURE); | |
2426 | dpcm_be_disconnect(fe, SNDRV_PCM_STREAM_CAPTURE); | |
2427 | } | |
2428 | ||
2429 | /* update any old capture paths */ | |
2430 | old = dpcm_process_paths(fe, SNDRV_PCM_STREAM_CAPTURE, &list, 0); | |
2431 | if (old) { | |
2432 | dpcm_run_old_update(fe, SNDRV_PCM_STREAM_CAPTURE); | |
2433 | dpcm_clear_pending_state(fe, SNDRV_PCM_STREAM_CAPTURE); | |
2434 | dpcm_be_disconnect(fe, SNDRV_PCM_STREAM_CAPTURE); | |
2435 | } | |
2436 | ||
2437 | dpcm_path_put(&list); | |
2438 | } | |
2439 | ||
2440 | mutex_unlock(&card->mutex); | |
2441 | return 0; | |
2442 | } | |
01d7584c LG |
2443 | int soc_dpcm_be_digital_mute(struct snd_soc_pcm_runtime *fe, int mute) |
2444 | { | |
2445 | struct snd_soc_dpcm *dpcm; | |
2446 | struct list_head *clients = | |
2447 | &fe->dpcm[SNDRV_PCM_STREAM_PLAYBACK].be_clients; | |
2448 | ||
2449 | list_for_each_entry(dpcm, clients, list_be) { | |
2450 | ||
2451 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
2e5894d7 | 2452 | int i; |
01d7584c LG |
2453 | |
2454 | if (be->dai_link->ignore_suspend) | |
2455 | continue; | |
2456 | ||
2e5894d7 BC |
2457 | for (i = 0; i < be->num_codecs; i++) { |
2458 | struct snd_soc_dai *dai = be->codec_dais[i]; | |
2459 | struct snd_soc_dai_driver *drv = dai->driver; | |
2460 | ||
2461 | dev_dbg(be->dev, "ASoC: BE digital mute %s\n", | |
2462 | be->dai_link->name); | |
01d7584c | 2463 | |
2e5894d7 BC |
2464 | if (drv->ops && drv->ops->digital_mute && |
2465 | dai->playback_active) | |
2466 | drv->ops->digital_mute(dai, mute); | |
2467 | } | |
01d7584c LG |
2468 | } |
2469 | ||
2470 | return 0; | |
2471 | } | |
2472 | ||
45c0a188 | 2473 | static int dpcm_fe_dai_open(struct snd_pcm_substream *fe_substream) |
01d7584c LG |
2474 | { |
2475 | struct snd_soc_pcm_runtime *fe = fe_substream->private_data; | |
2476 | struct snd_soc_dpcm *dpcm; | |
2477 | struct snd_soc_dapm_widget_list *list; | |
2478 | int ret; | |
2479 | int stream = fe_substream->stream; | |
2480 | ||
2481 | mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME); | |
2482 | fe->dpcm[stream].runtime = fe_substream->runtime; | |
2483 | ||
8f70e515 QZ |
2484 | ret = dpcm_path_get(fe, stream, &list); |
2485 | if (ret < 0) { | |
2486 | mutex_unlock(&fe->card->mutex); | |
2487 | return ret; | |
2488 | } else if (ret == 0) { | |
103d84a3 | 2489 | dev_dbg(fe->dev, "ASoC: %s no valid %s route\n", |
01d7584c | 2490 | fe->dai_link->name, stream ? "capture" : "playback"); |
01d7584c LG |
2491 | } |
2492 | ||
2493 | /* calculate valid and active FE <-> BE dpcms */ | |
2494 | dpcm_process_paths(fe, stream, &list, 1); | |
2495 | ||
2496 | ret = dpcm_fe_dai_startup(fe_substream); | |
2497 | if (ret < 0) { | |
2498 | /* clean up all links */ | |
2499 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) | |
2500 | dpcm->state = SND_SOC_DPCM_LINK_STATE_FREE; | |
2501 | ||
2502 | dpcm_be_disconnect(fe, stream); | |
2503 | fe->dpcm[stream].runtime = NULL; | |
2504 | } | |
2505 | ||
2506 | dpcm_clear_pending_state(fe, stream); | |
2507 | dpcm_path_put(&list); | |
2508 | mutex_unlock(&fe->card->mutex); | |
2509 | return ret; | |
2510 | } | |
2511 | ||
45c0a188 | 2512 | static int dpcm_fe_dai_close(struct snd_pcm_substream *fe_substream) |
01d7584c LG |
2513 | { |
2514 | struct snd_soc_pcm_runtime *fe = fe_substream->private_data; | |
2515 | struct snd_soc_dpcm *dpcm; | |
2516 | int stream = fe_substream->stream, ret; | |
2517 | ||
2518 | mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME); | |
2519 | ret = dpcm_fe_dai_shutdown(fe_substream); | |
2520 | ||
2521 | /* mark FE's links ready to prune */ | |
2522 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) | |
2523 | dpcm->state = SND_SOC_DPCM_LINK_STATE_FREE; | |
2524 | ||
2525 | dpcm_be_disconnect(fe, stream); | |
2526 | ||
2527 | fe->dpcm[stream].runtime = NULL; | |
2528 | mutex_unlock(&fe->card->mutex); | |
2529 | return ret; | |
2530 | } | |
2531 | ||
ddee627c LG |
2532 | /* create a new pcm */ |
2533 | int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num) | |
2534 | { | |
ddee627c | 2535 | struct snd_soc_platform *platform = rtd->platform; |
2e5894d7 | 2536 | struct snd_soc_dai *codec_dai; |
ddee627c LG |
2537 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
2538 | struct snd_pcm *pcm; | |
2539 | char new_name[64]; | |
2540 | int ret = 0, playback = 0, capture = 0; | |
2e5894d7 | 2541 | int i; |
ddee627c | 2542 | |
01d7584c | 2543 | if (rtd->dai_link->dynamic || rtd->dai_link->no_pcm) { |
1e9de42f LG |
2544 | playback = rtd->dai_link->dpcm_playback; |
2545 | capture = rtd->dai_link->dpcm_capture; | |
01d7584c | 2546 | } else { |
2e5894d7 BC |
2547 | for (i = 0; i < rtd->num_codecs; i++) { |
2548 | codec_dai = rtd->codec_dais[i]; | |
2549 | if (codec_dai->driver->playback.channels_min) | |
2550 | playback = 1; | |
2551 | if (codec_dai->driver->capture.channels_min) | |
2552 | capture = 1; | |
2553 | } | |
2554 | ||
2555 | capture = capture && cpu_dai->driver->capture.channels_min; | |
2556 | playback = playback && cpu_dai->driver->playback.channels_min; | |
01d7584c LG |
2557 | } |
2558 | ||
d6bead02 FE |
2559 | if (rtd->dai_link->playback_only) { |
2560 | playback = 1; | |
2561 | capture = 0; | |
2562 | } | |
2563 | ||
2564 | if (rtd->dai_link->capture_only) { | |
2565 | playback = 0; | |
2566 | capture = 1; | |
2567 | } | |
2568 | ||
01d7584c LG |
2569 | /* create the PCM */ |
2570 | if (rtd->dai_link->no_pcm) { | |
2571 | snprintf(new_name, sizeof(new_name), "(%s)", | |
2572 | rtd->dai_link->stream_name); | |
2573 | ||
2574 | ret = snd_pcm_new_internal(rtd->card->snd_card, new_name, num, | |
2575 | playback, capture, &pcm); | |
2576 | } else { | |
2577 | if (rtd->dai_link->dynamic) | |
2578 | snprintf(new_name, sizeof(new_name), "%s (*)", | |
2579 | rtd->dai_link->stream_name); | |
2580 | else | |
2581 | snprintf(new_name, sizeof(new_name), "%s %s-%d", | |
2e5894d7 BC |
2582 | rtd->dai_link->stream_name, |
2583 | (rtd->num_codecs > 1) ? | |
2584 | "multicodec" : rtd->codec_dai->name, num); | |
01d7584c LG |
2585 | |
2586 | ret = snd_pcm_new(rtd->card->snd_card, new_name, num, playback, | |
2587 | capture, &pcm); | |
2588 | } | |
ddee627c | 2589 | if (ret < 0) { |
103d84a3 | 2590 | dev_err(rtd->card->dev, "ASoC: can't create pcm for %s\n", |
5cb9b748 | 2591 | rtd->dai_link->name); |
ddee627c LG |
2592 | return ret; |
2593 | } | |
103d84a3 | 2594 | dev_dbg(rtd->card->dev, "ASoC: registered pcm #%d %s\n",num, new_name); |
ddee627c LG |
2595 | |
2596 | /* DAPM dai link stream work */ | |
2597 | INIT_DELAYED_WORK(&rtd->delayed_work, close_delayed_work); | |
2598 | ||
48c7699f | 2599 | pcm->nonatomic = rtd->dai_link->nonatomic; |
ddee627c LG |
2600 | rtd->pcm = pcm; |
2601 | pcm->private_data = rtd; | |
01d7584c LG |
2602 | |
2603 | if (rtd->dai_link->no_pcm) { | |
2604 | if (playback) | |
2605 | pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream->private_data = rtd; | |
2606 | if (capture) | |
2607 | pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream->private_data = rtd; | |
2608 | goto out; | |
2609 | } | |
2610 | ||
2611 | /* ASoC PCM operations */ | |
2612 | if (rtd->dai_link->dynamic) { | |
2613 | rtd->ops.open = dpcm_fe_dai_open; | |
2614 | rtd->ops.hw_params = dpcm_fe_dai_hw_params; | |
2615 | rtd->ops.prepare = dpcm_fe_dai_prepare; | |
2616 | rtd->ops.trigger = dpcm_fe_dai_trigger; | |
2617 | rtd->ops.hw_free = dpcm_fe_dai_hw_free; | |
2618 | rtd->ops.close = dpcm_fe_dai_close; | |
2619 | rtd->ops.pointer = soc_pcm_pointer; | |
be3f3f2c | 2620 | rtd->ops.ioctl = soc_pcm_ioctl; |
01d7584c LG |
2621 | } else { |
2622 | rtd->ops.open = soc_pcm_open; | |
2623 | rtd->ops.hw_params = soc_pcm_hw_params; | |
2624 | rtd->ops.prepare = soc_pcm_prepare; | |
2625 | rtd->ops.trigger = soc_pcm_trigger; | |
2626 | rtd->ops.hw_free = soc_pcm_hw_free; | |
2627 | rtd->ops.close = soc_pcm_close; | |
2628 | rtd->ops.pointer = soc_pcm_pointer; | |
be3f3f2c | 2629 | rtd->ops.ioctl = soc_pcm_ioctl; |
01d7584c LG |
2630 | } |
2631 | ||
ddee627c | 2632 | if (platform->driver->ops) { |
01d7584c LG |
2633 | rtd->ops.ack = platform->driver->ops->ack; |
2634 | rtd->ops.copy = platform->driver->ops->copy; | |
2635 | rtd->ops.silence = platform->driver->ops->silence; | |
2636 | rtd->ops.page = platform->driver->ops->page; | |
2637 | rtd->ops.mmap = platform->driver->ops->mmap; | |
ddee627c LG |
2638 | } |
2639 | ||
2640 | if (playback) | |
01d7584c | 2641 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &rtd->ops); |
ddee627c LG |
2642 | |
2643 | if (capture) | |
01d7584c | 2644 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &rtd->ops); |
ddee627c LG |
2645 | |
2646 | if (platform->driver->pcm_new) { | |
2647 | ret = platform->driver->pcm_new(rtd); | |
2648 | if (ret < 0) { | |
b1bc7b3c MB |
2649 | dev_err(platform->dev, |
2650 | "ASoC: pcm constructor failed: %d\n", | |
2651 | ret); | |
ddee627c LG |
2652 | return ret; |
2653 | } | |
2654 | } | |
2655 | ||
2656 | pcm->private_free = platform->driver->pcm_free; | |
01d7584c | 2657 | out: |
2e5894d7 BC |
2658 | dev_info(rtd->card->dev, "%s <-> %s mapping ok\n", |
2659 | (rtd->num_codecs > 1) ? "multicodec" : rtd->codec_dai->name, | |
2660 | cpu_dai->name); | |
ddee627c LG |
2661 | return ret; |
2662 | } | |
01d7584c LG |
2663 | |
2664 | /* is the current PCM operation for this FE ? */ | |
2665 | int snd_soc_dpcm_fe_can_update(struct snd_soc_pcm_runtime *fe, int stream) | |
2666 | { | |
2667 | if (fe->dpcm[stream].runtime_update == SND_SOC_DPCM_UPDATE_FE) | |
2668 | return 1; | |
2669 | return 0; | |
2670 | } | |
2671 | EXPORT_SYMBOL_GPL(snd_soc_dpcm_fe_can_update); | |
2672 | ||
2673 | /* is the current PCM operation for this BE ? */ | |
2674 | int snd_soc_dpcm_be_can_update(struct snd_soc_pcm_runtime *fe, | |
2675 | struct snd_soc_pcm_runtime *be, int stream) | |
2676 | { | |
2677 | if ((fe->dpcm[stream].runtime_update == SND_SOC_DPCM_UPDATE_FE) || | |
2678 | ((fe->dpcm[stream].runtime_update == SND_SOC_DPCM_UPDATE_BE) && | |
2679 | be->dpcm[stream].runtime_update)) | |
2680 | return 1; | |
2681 | return 0; | |
2682 | } | |
2683 | EXPORT_SYMBOL_GPL(snd_soc_dpcm_be_can_update); | |
2684 | ||
2685 | /* get the substream for this BE */ | |
2686 | struct snd_pcm_substream * | |
2687 | snd_soc_dpcm_get_substream(struct snd_soc_pcm_runtime *be, int stream) | |
2688 | { | |
2689 | return be->pcm->streams[stream].substream; | |
2690 | } | |
2691 | EXPORT_SYMBOL_GPL(snd_soc_dpcm_get_substream); | |
2692 | ||
2693 | /* get the BE runtime state */ | |
2694 | enum snd_soc_dpcm_state | |
2695 | snd_soc_dpcm_be_get_state(struct snd_soc_pcm_runtime *be, int stream) | |
2696 | { | |
2697 | return be->dpcm[stream].state; | |
2698 | } | |
2699 | EXPORT_SYMBOL_GPL(snd_soc_dpcm_be_get_state); | |
2700 | ||
2701 | /* set the BE runtime state */ | |
2702 | void snd_soc_dpcm_be_set_state(struct snd_soc_pcm_runtime *be, | |
2703 | int stream, enum snd_soc_dpcm_state state) | |
2704 | { | |
2705 | be->dpcm[stream].state = state; | |
2706 | } | |
2707 | EXPORT_SYMBOL_GPL(snd_soc_dpcm_be_set_state); | |
2708 | ||
2709 | /* | |
2710 | * We can only hw_free, stop, pause or suspend a BE DAI if any of it's FE | |
2711 | * are not running, paused or suspended for the specified stream direction. | |
2712 | */ | |
2713 | int snd_soc_dpcm_can_be_free_stop(struct snd_soc_pcm_runtime *fe, | |
2714 | struct snd_soc_pcm_runtime *be, int stream) | |
2715 | { | |
2716 | struct snd_soc_dpcm *dpcm; | |
2717 | int state; | |
2718 | ||
2719 | list_for_each_entry(dpcm, &be->dpcm[stream].fe_clients, list_fe) { | |
2720 | ||
2721 | if (dpcm->fe == fe) | |
2722 | continue; | |
2723 | ||
2724 | state = dpcm->fe->dpcm[stream].state; | |
2725 | if (state == SND_SOC_DPCM_STATE_START || | |
2726 | state == SND_SOC_DPCM_STATE_PAUSED || | |
2727 | state == SND_SOC_DPCM_STATE_SUSPEND) | |
2728 | return 0; | |
2729 | } | |
2730 | ||
2731 | /* it's safe to free/stop this BE DAI */ | |
2732 | return 1; | |
2733 | } | |
2734 | EXPORT_SYMBOL_GPL(snd_soc_dpcm_can_be_free_stop); | |
2735 | ||
2736 | /* | |
2737 | * We can only change hw params a BE DAI if any of it's FE are not prepared, | |
2738 | * running, paused or suspended for the specified stream direction. | |
2739 | */ | |
2740 | int snd_soc_dpcm_can_be_params(struct snd_soc_pcm_runtime *fe, | |
2741 | struct snd_soc_pcm_runtime *be, int stream) | |
2742 | { | |
2743 | struct snd_soc_dpcm *dpcm; | |
2744 | int state; | |
2745 | ||
2746 | list_for_each_entry(dpcm, &be->dpcm[stream].fe_clients, list_fe) { | |
2747 | ||
2748 | if (dpcm->fe == fe) | |
2749 | continue; | |
2750 | ||
2751 | state = dpcm->fe->dpcm[stream].state; | |
2752 | if (state == SND_SOC_DPCM_STATE_START || | |
2753 | state == SND_SOC_DPCM_STATE_PAUSED || | |
2754 | state == SND_SOC_DPCM_STATE_SUSPEND || | |
2755 | state == SND_SOC_DPCM_STATE_PREPARE) | |
2756 | return 0; | |
2757 | } | |
2758 | ||
2759 | /* it's safe to change hw_params */ | |
2760 | return 1; | |
2761 | } | |
2762 | EXPORT_SYMBOL_GPL(snd_soc_dpcm_can_be_params); | |
f86dcef8 | 2763 | |
07bf84aa LG |
2764 | int snd_soc_platform_trigger(struct snd_pcm_substream *substream, |
2765 | int cmd, struct snd_soc_platform *platform) | |
2766 | { | |
c5914b0a | 2767 | if (platform->driver->ops && platform->driver->ops->trigger) |
07bf84aa LG |
2768 | return platform->driver->ops->trigger(substream, cmd); |
2769 | return 0; | |
2770 | } | |
2771 | EXPORT_SYMBOL_GPL(snd_soc_platform_trigger); | |
2772 | ||
f86dcef8 LG |
2773 | #ifdef CONFIG_DEBUG_FS |
2774 | static char *dpcm_state_string(enum snd_soc_dpcm_state state) | |
2775 | { | |
2776 | switch (state) { | |
2777 | case SND_SOC_DPCM_STATE_NEW: | |
2778 | return "new"; | |
2779 | case SND_SOC_DPCM_STATE_OPEN: | |
2780 | return "open"; | |
2781 | case SND_SOC_DPCM_STATE_HW_PARAMS: | |
2782 | return "hw_params"; | |
2783 | case SND_SOC_DPCM_STATE_PREPARE: | |
2784 | return "prepare"; | |
2785 | case SND_SOC_DPCM_STATE_START: | |
2786 | return "start"; | |
2787 | case SND_SOC_DPCM_STATE_STOP: | |
2788 | return "stop"; | |
2789 | case SND_SOC_DPCM_STATE_SUSPEND: | |
2790 | return "suspend"; | |
2791 | case SND_SOC_DPCM_STATE_PAUSED: | |
2792 | return "paused"; | |
2793 | case SND_SOC_DPCM_STATE_HW_FREE: | |
2794 | return "hw_free"; | |
2795 | case SND_SOC_DPCM_STATE_CLOSE: | |
2796 | return "close"; | |
2797 | } | |
2798 | ||
2799 | return "unknown"; | |
2800 | } | |
2801 | ||
f86dcef8 LG |
2802 | static ssize_t dpcm_show_state(struct snd_soc_pcm_runtime *fe, |
2803 | int stream, char *buf, size_t size) | |
2804 | { | |
2805 | struct snd_pcm_hw_params *params = &fe->dpcm[stream].hw_params; | |
2806 | struct snd_soc_dpcm *dpcm; | |
2807 | ssize_t offset = 0; | |
2808 | ||
2809 | /* FE state */ | |
2810 | offset += snprintf(buf + offset, size - offset, | |
2811 | "[%s - %s]\n", fe->dai_link->name, | |
2812 | stream ? "Capture" : "Playback"); | |
2813 | ||
2814 | offset += snprintf(buf + offset, size - offset, "State: %s\n", | |
2815 | dpcm_state_string(fe->dpcm[stream].state)); | |
2816 | ||
2817 | if ((fe->dpcm[stream].state >= SND_SOC_DPCM_STATE_HW_PARAMS) && | |
2818 | (fe->dpcm[stream].state <= SND_SOC_DPCM_STATE_STOP)) | |
2819 | offset += snprintf(buf + offset, size - offset, | |
2820 | "Hardware Params: " | |
2821 | "Format = %s, Channels = %d, Rate = %d\n", | |
2822 | snd_pcm_format_name(params_format(params)), | |
2823 | params_channels(params), | |
2824 | params_rate(params)); | |
2825 | ||
2826 | /* BEs state */ | |
2827 | offset += snprintf(buf + offset, size - offset, "Backends:\n"); | |
2828 | ||
2829 | if (list_empty(&fe->dpcm[stream].be_clients)) { | |
2830 | offset += snprintf(buf + offset, size - offset, | |
2831 | " No active DSP links\n"); | |
2832 | goto out; | |
2833 | } | |
2834 | ||
2835 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { | |
2836 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
2837 | params = &dpcm->hw_params; | |
2838 | ||
2839 | offset += snprintf(buf + offset, size - offset, | |
2840 | "- %s\n", be->dai_link->name); | |
2841 | ||
2842 | offset += snprintf(buf + offset, size - offset, | |
2843 | " State: %s\n", | |
2844 | dpcm_state_string(be->dpcm[stream].state)); | |
2845 | ||
2846 | if ((be->dpcm[stream].state >= SND_SOC_DPCM_STATE_HW_PARAMS) && | |
2847 | (be->dpcm[stream].state <= SND_SOC_DPCM_STATE_STOP)) | |
2848 | offset += snprintf(buf + offset, size - offset, | |
2849 | " Hardware Params: " | |
2850 | "Format = %s, Channels = %d, Rate = %d\n", | |
2851 | snd_pcm_format_name(params_format(params)), | |
2852 | params_channels(params), | |
2853 | params_rate(params)); | |
2854 | } | |
2855 | ||
2856 | out: | |
2857 | return offset; | |
2858 | } | |
2859 | ||
2860 | static ssize_t dpcm_state_read_file(struct file *file, char __user *user_buf, | |
2861 | size_t count, loff_t *ppos) | |
2862 | { | |
2863 | struct snd_soc_pcm_runtime *fe = file->private_data; | |
2864 | ssize_t out_count = PAGE_SIZE, offset = 0, ret = 0; | |
2865 | char *buf; | |
2866 | ||
2867 | buf = kmalloc(out_count, GFP_KERNEL); | |
2868 | if (!buf) | |
2869 | return -ENOMEM; | |
2870 | ||
2871 | if (fe->cpu_dai->driver->playback.channels_min) | |
2872 | offset += dpcm_show_state(fe, SNDRV_PCM_STREAM_PLAYBACK, | |
2873 | buf + offset, out_count - offset); | |
2874 | ||
2875 | if (fe->cpu_dai->driver->capture.channels_min) | |
2876 | offset += dpcm_show_state(fe, SNDRV_PCM_STREAM_CAPTURE, | |
2877 | buf + offset, out_count - offset); | |
2878 | ||
f57b8488 | 2879 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, offset); |
f86dcef8 | 2880 | |
f57b8488 LG |
2881 | kfree(buf); |
2882 | return ret; | |
f86dcef8 LG |
2883 | } |
2884 | ||
2885 | static const struct file_operations dpcm_state_fops = { | |
f57b8488 | 2886 | .open = simple_open, |
f86dcef8 LG |
2887 | .read = dpcm_state_read_file, |
2888 | .llseek = default_llseek, | |
2889 | }; | |
2890 | ||
2e55b90a | 2891 | void soc_dpcm_debugfs_add(struct snd_soc_pcm_runtime *rtd) |
f86dcef8 | 2892 | { |
b3bba9a1 | 2893 | if (!rtd->dai_link) |
2e55b90a | 2894 | return; |
b3bba9a1 | 2895 | |
6553bf06 LPC |
2896 | if (!rtd->card->debugfs_card_root) |
2897 | return; | |
b3bba9a1 | 2898 | |
f86dcef8 LG |
2899 | rtd->debugfs_dpcm_root = debugfs_create_dir(rtd->dai_link->name, |
2900 | rtd->card->debugfs_card_root); | |
2901 | if (!rtd->debugfs_dpcm_root) { | |
2902 | dev_dbg(rtd->dev, | |
2903 | "ASoC: Failed to create dpcm debugfs directory %s\n", | |
2904 | rtd->dai_link->name); | |
2e55b90a | 2905 | return; |
f86dcef8 LG |
2906 | } |
2907 | ||
f57b8488 | 2908 | rtd->debugfs_dpcm_state = debugfs_create_file("state", 0444, |
f86dcef8 LG |
2909 | rtd->debugfs_dpcm_root, |
2910 | rtd, &dpcm_state_fops); | |
f86dcef8 LG |
2911 | } |
2912 | #endif |