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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 | ||
b1cd2e34 BG |
184 | if ((event == SND_SOC_DAPM_STREAM_STOP) && |
185 | (be->dpcm[dir].users >= 1)) | |
186 | continue; | |
187 | ||
01d7584c LG |
188 | snd_soc_dapm_stream_event(be, dir, event); |
189 | } | |
190 | ||
191 | snd_soc_dapm_stream_event(fe, dir, event); | |
192 | ||
193 | return 0; | |
194 | } | |
195 | ||
17841020 DA |
196 | static int soc_pcm_apply_symmetry(struct snd_pcm_substream *substream, |
197 | struct snd_soc_dai *soc_dai) | |
ddee627c LG |
198 | { |
199 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
ddee627c LG |
200 | int ret; |
201 | ||
3635bf09 NC |
202 | if (soc_dai->rate && (soc_dai->driver->symmetric_rates || |
203 | rtd->dai_link->symmetric_rates)) { | |
204 | dev_dbg(soc_dai->dev, "ASoC: Symmetry forces %dHz rate\n", | |
205 | soc_dai->rate); | |
206 | ||
4dcdd43b | 207 | ret = snd_pcm_hw_constraint_single(substream->runtime, |
3635bf09 | 208 | SNDRV_PCM_HW_PARAM_RATE, |
4dcdd43b | 209 | soc_dai->rate); |
3635bf09 NC |
210 | if (ret < 0) { |
211 | dev_err(soc_dai->dev, | |
212 | "ASoC: Unable to apply rate constraint: %d\n", | |
213 | ret); | |
214 | return ret; | |
215 | } | |
216 | } | |
ddee627c | 217 | |
3635bf09 NC |
218 | if (soc_dai->channels && (soc_dai->driver->symmetric_channels || |
219 | rtd->dai_link->symmetric_channels)) { | |
220 | dev_dbg(soc_dai->dev, "ASoC: Symmetry forces %d channel(s)\n", | |
221 | soc_dai->channels); | |
ddee627c | 222 | |
4dcdd43b | 223 | ret = snd_pcm_hw_constraint_single(substream->runtime, |
3635bf09 | 224 | SNDRV_PCM_HW_PARAM_CHANNELS, |
3635bf09 NC |
225 | soc_dai->channels); |
226 | if (ret < 0) { | |
227 | dev_err(soc_dai->dev, | |
228 | "ASoC: Unable to apply channel symmetry constraint: %d\n", | |
229 | ret); | |
230 | return ret; | |
231 | } | |
ddee627c LG |
232 | } |
233 | ||
3635bf09 NC |
234 | if (soc_dai->sample_bits && (soc_dai->driver->symmetric_samplebits || |
235 | rtd->dai_link->symmetric_samplebits)) { | |
236 | dev_dbg(soc_dai->dev, "ASoC: Symmetry forces %d sample bits\n", | |
237 | soc_dai->sample_bits); | |
ddee627c | 238 | |
4dcdd43b | 239 | ret = snd_pcm_hw_constraint_single(substream->runtime, |
3635bf09 | 240 | SNDRV_PCM_HW_PARAM_SAMPLE_BITS, |
3635bf09 NC |
241 | soc_dai->sample_bits); |
242 | if (ret < 0) { | |
243 | dev_err(soc_dai->dev, | |
244 | "ASoC: Unable to apply sample bits symmetry constraint: %d\n", | |
245 | ret); | |
246 | return ret; | |
247 | } | |
ddee627c LG |
248 | } |
249 | ||
250 | return 0; | |
251 | } | |
252 | ||
3635bf09 NC |
253 | static int soc_pcm_params_symmetry(struct snd_pcm_substream *substream, |
254 | struct snd_pcm_hw_params *params) | |
255 | { | |
256 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
257 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
2e5894d7 | 258 | unsigned int rate, channels, sample_bits, symmetry, i; |
3635bf09 NC |
259 | |
260 | rate = params_rate(params); | |
261 | channels = params_channels(params); | |
262 | sample_bits = snd_pcm_format_physical_width(params_format(params)); | |
263 | ||
264 | /* reject unmatched parameters when applying symmetry */ | |
265 | symmetry = cpu_dai->driver->symmetric_rates || | |
3635bf09 | 266 | rtd->dai_link->symmetric_rates; |
2e5894d7 BC |
267 | |
268 | for (i = 0; i < rtd->num_codecs; i++) | |
269 | symmetry |= rtd->codec_dais[i]->driver->symmetric_rates; | |
270 | ||
3635bf09 NC |
271 | if (symmetry && cpu_dai->rate && cpu_dai->rate != rate) { |
272 | dev_err(rtd->dev, "ASoC: unmatched rate symmetry: %d - %d\n", | |
273 | cpu_dai->rate, rate); | |
274 | return -EINVAL; | |
ddee627c LG |
275 | } |
276 | ||
3635bf09 | 277 | symmetry = cpu_dai->driver->symmetric_channels || |
3635bf09 | 278 | rtd->dai_link->symmetric_channels; |
2e5894d7 BC |
279 | |
280 | for (i = 0; i < rtd->num_codecs; i++) | |
281 | symmetry |= rtd->codec_dais[i]->driver->symmetric_channels; | |
282 | ||
3635bf09 NC |
283 | if (symmetry && cpu_dai->channels && cpu_dai->channels != channels) { |
284 | dev_err(rtd->dev, "ASoC: unmatched channel symmetry: %d - %d\n", | |
285 | cpu_dai->channels, channels); | |
286 | return -EINVAL; | |
287 | } | |
ddee627c | 288 | |
3635bf09 | 289 | symmetry = cpu_dai->driver->symmetric_samplebits || |
3635bf09 | 290 | rtd->dai_link->symmetric_samplebits; |
2e5894d7 BC |
291 | |
292 | for (i = 0; i < rtd->num_codecs; i++) | |
293 | symmetry |= rtd->codec_dais[i]->driver->symmetric_samplebits; | |
294 | ||
3635bf09 NC |
295 | if (symmetry && cpu_dai->sample_bits && cpu_dai->sample_bits != sample_bits) { |
296 | dev_err(rtd->dev, "ASoC: unmatched sample bits symmetry: %d - %d\n", | |
297 | cpu_dai->sample_bits, sample_bits); | |
298 | return -EINVAL; | |
ddee627c LG |
299 | } |
300 | ||
301 | return 0; | |
302 | } | |
303 | ||
62e5f676 LPC |
304 | static bool soc_pcm_has_symmetry(struct snd_pcm_substream *substream) |
305 | { | |
306 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
307 | struct snd_soc_dai_driver *cpu_driver = rtd->cpu_dai->driver; | |
62e5f676 | 308 | struct snd_soc_dai_link *link = rtd->dai_link; |
2e5894d7 | 309 | unsigned int symmetry, i; |
62e5f676 | 310 | |
2e5894d7 BC |
311 | symmetry = cpu_driver->symmetric_rates || link->symmetric_rates || |
312 | cpu_driver->symmetric_channels || link->symmetric_channels || | |
313 | cpu_driver->symmetric_samplebits || link->symmetric_samplebits; | |
62e5f676 | 314 | |
2e5894d7 BC |
315 | for (i = 0; i < rtd->num_codecs; i++) |
316 | symmetry = symmetry || | |
317 | rtd->codec_dais[i]->driver->symmetric_rates || | |
318 | rtd->codec_dais[i]->driver->symmetric_channels || | |
319 | rtd->codec_dais[i]->driver->symmetric_samplebits; | |
320 | ||
321 | return symmetry; | |
62e5f676 LPC |
322 | } |
323 | ||
2e5894d7 | 324 | static void soc_pcm_set_msb(struct snd_pcm_substream *substream, int bits) |
58ba9b25 | 325 | { |
2e5894d7 | 326 | struct snd_soc_pcm_runtime *rtd = substream->private_data; |
c6068d3a | 327 | int ret; |
58ba9b25 MB |
328 | |
329 | if (!bits) | |
330 | return; | |
331 | ||
0e2a3751 LPC |
332 | ret = snd_pcm_hw_constraint_msbits(substream->runtime, 0, 0, bits); |
333 | if (ret != 0) | |
334 | dev_warn(rtd->dev, "ASoC: Failed to set MSB %d: %d\n", | |
335 | bits, ret); | |
58ba9b25 MB |
336 | } |
337 | ||
c8dd1fec BC |
338 | static void soc_pcm_apply_msb(struct snd_pcm_substream *substream) |
339 | { | |
340 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
341 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
2e5894d7 BC |
342 | struct snd_soc_dai *codec_dai; |
343 | int i; | |
c8dd1fec BC |
344 | unsigned int bits = 0, cpu_bits; |
345 | ||
346 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { | |
2e5894d7 BC |
347 | for (i = 0; i < rtd->num_codecs; i++) { |
348 | codec_dai = rtd->codec_dais[i]; | |
349 | if (codec_dai->driver->playback.sig_bits == 0) { | |
350 | bits = 0; | |
351 | break; | |
352 | } | |
353 | bits = max(codec_dai->driver->playback.sig_bits, bits); | |
354 | } | |
c8dd1fec BC |
355 | cpu_bits = cpu_dai->driver->playback.sig_bits; |
356 | } else { | |
2e5894d7 BC |
357 | for (i = 0; i < rtd->num_codecs; i++) { |
358 | codec_dai = rtd->codec_dais[i]; | |
5e63dfcc | 359 | if (codec_dai->driver->capture.sig_bits == 0) { |
2e5894d7 BC |
360 | bits = 0; |
361 | break; | |
362 | } | |
363 | bits = max(codec_dai->driver->capture.sig_bits, bits); | |
364 | } | |
c8dd1fec BC |
365 | cpu_bits = cpu_dai->driver->capture.sig_bits; |
366 | } | |
367 | ||
2e5894d7 BC |
368 | soc_pcm_set_msb(substream, bits); |
369 | soc_pcm_set_msb(substream, cpu_bits); | |
c8dd1fec BC |
370 | } |
371 | ||
2e5894d7 | 372 | static void soc_pcm_init_runtime_hw(struct snd_pcm_substream *substream) |
bd477c31 | 373 | { |
2e5894d7 | 374 | struct snd_pcm_runtime *runtime = substream->runtime; |
78e45c99 | 375 | struct snd_pcm_hardware *hw = &runtime->hw; |
2e5894d7 BC |
376 | struct snd_soc_pcm_runtime *rtd = substream->private_data; |
377 | struct snd_soc_dai_driver *cpu_dai_drv = rtd->cpu_dai->driver; | |
378 | struct snd_soc_dai_driver *codec_dai_drv; | |
379 | struct snd_soc_pcm_stream *codec_stream; | |
380 | struct snd_soc_pcm_stream *cpu_stream; | |
381 | unsigned int chan_min = 0, chan_max = UINT_MAX; | |
382 | unsigned int rate_min = 0, rate_max = UINT_MAX; | |
383 | unsigned int rates = UINT_MAX; | |
384 | u64 formats = ULLONG_MAX; | |
385 | int i; | |
78e45c99 | 386 | |
2e5894d7 BC |
387 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) |
388 | cpu_stream = &cpu_dai_drv->playback; | |
16d7ea91 | 389 | else |
2e5894d7 | 390 | cpu_stream = &cpu_dai_drv->capture; |
78e45c99 | 391 | |
2e5894d7 BC |
392 | /* first calculate min/max only for CODECs in the DAI link */ |
393 | for (i = 0; i < rtd->num_codecs; i++) { | |
cde79035 RW |
394 | |
395 | /* | |
396 | * Skip CODECs which don't support the current stream type. | |
397 | * Otherwise, since the rate, channel, and format values will | |
398 | * zero in that case, we would have no usable settings left, | |
399 | * causing the resulting setup to fail. | |
400 | * At least one CODEC should match, otherwise we should have | |
401 | * bailed out on a higher level, since there would be no | |
402 | * CODEC to support the transfer direction in that case. | |
403 | */ | |
404 | if (!snd_soc_dai_stream_valid(rtd->codec_dais[i], | |
405 | substream->stream)) | |
406 | continue; | |
407 | ||
2e5894d7 BC |
408 | codec_dai_drv = rtd->codec_dais[i]->driver; |
409 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) | |
410 | codec_stream = &codec_dai_drv->playback; | |
411 | else | |
412 | codec_stream = &codec_dai_drv->capture; | |
413 | chan_min = max(chan_min, codec_stream->channels_min); | |
414 | chan_max = min(chan_max, codec_stream->channels_max); | |
415 | rate_min = max(rate_min, codec_stream->rate_min); | |
416 | rate_max = min_not_zero(rate_max, codec_stream->rate_max); | |
417 | formats &= codec_stream->formats; | |
418 | rates = snd_pcm_rate_mask_intersect(codec_stream->rates, rates); | |
419 | } | |
420 | ||
421 | /* | |
422 | * chan min/max cannot be enforced if there are multiple CODEC DAIs | |
423 | * connected to a single CPU DAI, use CPU DAI's directly and let | |
424 | * channel allocation be fixed up later | |
425 | */ | |
426 | if (rtd->num_codecs > 1) { | |
427 | chan_min = cpu_stream->channels_min; | |
428 | chan_max = cpu_stream->channels_max; | |
429 | } | |
430 | ||
431 | hw->channels_min = max(chan_min, cpu_stream->channels_min); | |
432 | hw->channels_max = min(chan_max, cpu_stream->channels_max); | |
433 | if (hw->formats) | |
434 | hw->formats &= formats & cpu_stream->formats; | |
435 | else | |
436 | hw->formats = formats & cpu_stream->formats; | |
437 | hw->rates = snd_pcm_rate_mask_intersect(rates, cpu_stream->rates); | |
78e45c99 LPC |
438 | |
439 | snd_pcm_limit_hw_rates(runtime); | |
440 | ||
441 | hw->rate_min = max(hw->rate_min, cpu_stream->rate_min); | |
2e5894d7 | 442 | hw->rate_min = max(hw->rate_min, rate_min); |
78e45c99 | 443 | hw->rate_max = min_not_zero(hw->rate_max, cpu_stream->rate_max); |
2e5894d7 | 444 | hw->rate_max = min_not_zero(hw->rate_max, rate_max); |
bd477c31 LPC |
445 | } |
446 | ||
ddee627c LG |
447 | /* |
448 | * Called by ALSA when a PCM substream is opened, the runtime->hw record is | |
449 | * then initialized and any private data can be allocated. This also calls | |
450 | * startup for the cpu DAI, platform, machine and codec DAI. | |
451 | */ | |
452 | static int soc_pcm_open(struct snd_pcm_substream *substream) | |
453 | { | |
454 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
455 | struct snd_pcm_runtime *runtime = substream->runtime; | |
456 | struct snd_soc_platform *platform = rtd->platform; | |
90be711e KM |
457 | struct snd_soc_component *component; |
458 | struct snd_soc_rtdcom_list *rtdcom; | |
ddee627c | 459 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
2e5894d7 BC |
460 | struct snd_soc_dai *codec_dai; |
461 | const char *codec_dai_name = "multicodec"; | |
462 | int i, ret = 0; | |
ddee627c | 463 | |
988e8cc4 | 464 | pinctrl_pm_select_default_state(cpu_dai->dev); |
2e5894d7 BC |
465 | for (i = 0; i < rtd->num_codecs; i++) |
466 | pinctrl_pm_select_default_state(rtd->codec_dais[i]->dev); | |
90be711e KM |
467 | |
468 | for_each_rtdcom(rtd, rtdcom) { | |
469 | component = rtdcom->component; | |
470 | ||
471 | pm_runtime_get_sync(component->dev); | |
472 | } | |
d6652ef8 | 473 | |
b8c0dab9 | 474 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); |
ddee627c LG |
475 | |
476 | /* startup the audio subsystem */ | |
c5914b0a | 477 | if (cpu_dai->driver->ops && cpu_dai->driver->ops->startup) { |
ddee627c LG |
478 | ret = cpu_dai->driver->ops->startup(substream, cpu_dai); |
479 | if (ret < 0) { | |
103d84a3 LG |
480 | dev_err(cpu_dai->dev, "ASoC: can't open interface" |
481 | " %s: %d\n", cpu_dai->name, ret); | |
ddee627c LG |
482 | goto out; |
483 | } | |
484 | } | |
485 | ||
486 | if (platform->driver->ops && platform->driver->ops->open) { | |
487 | ret = platform->driver->ops->open(substream); | |
488 | if (ret < 0) { | |
103d84a3 | 489 | dev_err(platform->dev, "ASoC: can't open platform" |
f4333203 | 490 | " %s: %d\n", platform->component.name, ret); |
ddee627c LG |
491 | goto platform_err; |
492 | } | |
493 | } | |
494 | ||
2e5894d7 BC |
495 | for (i = 0; i < rtd->num_codecs; i++) { |
496 | codec_dai = rtd->codec_dais[i]; | |
497 | if (codec_dai->driver->ops && codec_dai->driver->ops->startup) { | |
498 | ret = codec_dai->driver->ops->startup(substream, | |
499 | codec_dai); | |
500 | if (ret < 0) { | |
501 | dev_err(codec_dai->dev, | |
502 | "ASoC: can't open codec %s: %d\n", | |
503 | codec_dai->name, ret); | |
504 | goto codec_dai_err; | |
505 | } | |
ddee627c | 506 | } |
2e5894d7 BC |
507 | |
508 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) | |
509 | codec_dai->tx_mask = 0; | |
510 | else | |
511 | codec_dai->rx_mask = 0; | |
ddee627c LG |
512 | } |
513 | ||
514 | if (rtd->dai_link->ops && rtd->dai_link->ops->startup) { | |
515 | ret = rtd->dai_link->ops->startup(substream); | |
516 | if (ret < 0) { | |
103d84a3 | 517 | pr_err("ASoC: %s startup failed: %d\n", |
25bfe662 | 518 | rtd->dai_link->name, ret); |
ddee627c LG |
519 | goto machine_err; |
520 | } | |
521 | } | |
522 | ||
01d7584c LG |
523 | /* Dynamic PCM DAI links compat checks use dynamic capabilities */ |
524 | if (rtd->dai_link->dynamic || rtd->dai_link->no_pcm) | |
525 | goto dynamic; | |
526 | ||
ddee627c | 527 | /* Check that the codec and cpu DAIs are compatible */ |
2e5894d7 BC |
528 | soc_pcm_init_runtime_hw(substream); |
529 | ||
530 | if (rtd->num_codecs == 1) | |
531 | codec_dai_name = rtd->codec_dai->name; | |
ddee627c | 532 | |
62e5f676 LPC |
533 | if (soc_pcm_has_symmetry(substream)) |
534 | runtime->hw.info |= SNDRV_PCM_INFO_JOINT_DUPLEX; | |
535 | ||
ddee627c | 536 | ret = -EINVAL; |
ddee627c | 537 | if (!runtime->hw.rates) { |
103d84a3 | 538 | printk(KERN_ERR "ASoC: %s <-> %s No matching rates\n", |
2e5894d7 | 539 | codec_dai_name, cpu_dai->name); |
ddee627c LG |
540 | goto config_err; |
541 | } | |
542 | if (!runtime->hw.formats) { | |
103d84a3 | 543 | printk(KERN_ERR "ASoC: %s <-> %s No matching formats\n", |
2e5894d7 | 544 | codec_dai_name, cpu_dai->name); |
ddee627c LG |
545 | goto config_err; |
546 | } | |
547 | if (!runtime->hw.channels_min || !runtime->hw.channels_max || | |
548 | runtime->hw.channels_min > runtime->hw.channels_max) { | |
103d84a3 | 549 | printk(KERN_ERR "ASoC: %s <-> %s No matching channels\n", |
2e5894d7 | 550 | codec_dai_name, cpu_dai->name); |
ddee627c LG |
551 | goto config_err; |
552 | } | |
553 | ||
c8dd1fec | 554 | soc_pcm_apply_msb(substream); |
58ba9b25 | 555 | |
ddee627c | 556 | /* Symmetry only applies if we've already got an active stream. */ |
17841020 DA |
557 | if (cpu_dai->active) { |
558 | ret = soc_pcm_apply_symmetry(substream, cpu_dai); | |
559 | if (ret != 0) | |
560 | goto config_err; | |
561 | } | |
562 | ||
2e5894d7 BC |
563 | for (i = 0; i < rtd->num_codecs; i++) { |
564 | if (rtd->codec_dais[i]->active) { | |
565 | ret = soc_pcm_apply_symmetry(substream, | |
566 | rtd->codec_dais[i]); | |
567 | if (ret != 0) | |
568 | goto config_err; | |
569 | } | |
ddee627c LG |
570 | } |
571 | ||
103d84a3 | 572 | pr_debug("ASoC: %s <-> %s info:\n", |
2e5894d7 | 573 | codec_dai_name, cpu_dai->name); |
103d84a3 LG |
574 | pr_debug("ASoC: rate mask 0x%x\n", runtime->hw.rates); |
575 | pr_debug("ASoC: min ch %d max ch %d\n", runtime->hw.channels_min, | |
ddee627c | 576 | runtime->hw.channels_max); |
103d84a3 | 577 | pr_debug("ASoC: min rate %d max rate %d\n", runtime->hw.rate_min, |
ddee627c LG |
578 | runtime->hw.rate_max); |
579 | ||
01d7584c | 580 | dynamic: |
24894b76 LPC |
581 | |
582 | snd_soc_runtime_activate(rtd, substream->stream); | |
583 | ||
b8c0dab9 | 584 | mutex_unlock(&rtd->pcm_mutex); |
ddee627c LG |
585 | return 0; |
586 | ||
587 | config_err: | |
588 | if (rtd->dai_link->ops && rtd->dai_link->ops->shutdown) | |
589 | rtd->dai_link->ops->shutdown(substream); | |
590 | ||
591 | machine_err: | |
2e5894d7 | 592 | i = rtd->num_codecs; |
ddee627c LG |
593 | |
594 | codec_dai_err: | |
2e5894d7 BC |
595 | while (--i >= 0) { |
596 | codec_dai = rtd->codec_dais[i]; | |
597 | if (codec_dai->driver->ops->shutdown) | |
598 | codec_dai->driver->ops->shutdown(substream, codec_dai); | |
599 | } | |
600 | ||
ddee627c LG |
601 | if (platform->driver->ops && platform->driver->ops->close) |
602 | platform->driver->ops->close(substream); | |
603 | ||
604 | platform_err: | |
605 | if (cpu_dai->driver->ops->shutdown) | |
606 | cpu_dai->driver->ops->shutdown(substream, cpu_dai); | |
607 | out: | |
b8c0dab9 | 608 | mutex_unlock(&rtd->pcm_mutex); |
d6652ef8 | 609 | |
90be711e KM |
610 | for_each_rtdcom(rtd, rtdcom) { |
611 | component = rtdcom->component; | |
612 | ||
613 | pm_runtime_mark_last_busy(component->dev); | |
614 | pm_runtime_put_autosuspend(component->dev); | |
3f809783 SK |
615 | } |
616 | ||
2e5894d7 BC |
617 | for (i = 0; i < rtd->num_codecs; i++) { |
618 | if (!rtd->codec_dais[i]->active) | |
619 | pinctrl_pm_select_sleep_state(rtd->codec_dais[i]->dev); | |
620 | } | |
988e8cc4 NC |
621 | if (!cpu_dai->active) |
622 | pinctrl_pm_select_sleep_state(cpu_dai->dev); | |
d6652ef8 | 623 | |
ddee627c LG |
624 | return ret; |
625 | } | |
626 | ||
627 | /* | |
628 | * Power down the audio subsystem pmdown_time msecs after close is called. | |
629 | * This is to ensure there are no pops or clicks in between any music tracks | |
630 | * due to DAPM power cycling. | |
631 | */ | |
632 | static void close_delayed_work(struct work_struct *work) | |
633 | { | |
634 | struct snd_soc_pcm_runtime *rtd = | |
635 | container_of(work, struct snd_soc_pcm_runtime, delayed_work.work); | |
2e5894d7 | 636 | struct snd_soc_dai *codec_dai = rtd->codec_dais[0]; |
ddee627c | 637 | |
b8c0dab9 | 638 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); |
ddee627c | 639 | |
103d84a3 | 640 | dev_dbg(rtd->dev, "ASoC: pop wq checking: %s status: %s waiting: %s\n", |
ddee627c LG |
641 | codec_dai->driver->playback.stream_name, |
642 | codec_dai->playback_active ? "active" : "inactive", | |
9bffb1fb | 643 | rtd->pop_wait ? "yes" : "no"); |
ddee627c LG |
644 | |
645 | /* are we waiting on this codec DAI stream */ | |
9bffb1fb MLC |
646 | if (rtd->pop_wait == 1) { |
647 | rtd->pop_wait = 0; | |
7bd3a6f3 | 648 | snd_soc_dapm_stream_event(rtd, SNDRV_PCM_STREAM_PLAYBACK, |
d9b0951b | 649 | SND_SOC_DAPM_STREAM_STOP); |
ddee627c LG |
650 | } |
651 | ||
b8c0dab9 | 652 | mutex_unlock(&rtd->pcm_mutex); |
ddee627c LG |
653 | } |
654 | ||
655 | /* | |
656 | * Called by ALSA when a PCM substream is closed. Private data can be | |
657 | * freed here. The cpu DAI, codec DAI, machine and platform are also | |
658 | * shutdown. | |
659 | */ | |
91d5e6b4 | 660 | static int soc_pcm_close(struct snd_pcm_substream *substream) |
ddee627c LG |
661 | { |
662 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
663 | struct snd_soc_platform *platform = rtd->platform; | |
90be711e KM |
664 | struct snd_soc_component *component; |
665 | struct snd_soc_rtdcom_list *rtdcom; | |
ddee627c | 666 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
2e5894d7 BC |
667 | struct snd_soc_dai *codec_dai; |
668 | int i; | |
ddee627c | 669 | |
b8c0dab9 | 670 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); |
ddee627c | 671 | |
24894b76 | 672 | snd_soc_runtime_deactivate(rtd, substream->stream); |
ddee627c | 673 | |
17841020 DA |
674 | /* clear the corresponding DAIs rate when inactive */ |
675 | if (!cpu_dai->active) | |
676 | cpu_dai->rate = 0; | |
677 | ||
2e5894d7 BC |
678 | for (i = 0; i < rtd->num_codecs; i++) { |
679 | codec_dai = rtd->codec_dais[i]; | |
680 | if (!codec_dai->active) | |
681 | codec_dai->rate = 0; | |
682 | } | |
25b76791 | 683 | |
ae11601b RB |
684 | snd_soc_dai_digital_mute(cpu_dai, 1, substream->stream); |
685 | ||
ddee627c LG |
686 | if (cpu_dai->driver->ops->shutdown) |
687 | cpu_dai->driver->ops->shutdown(substream, cpu_dai); | |
688 | ||
2e5894d7 BC |
689 | for (i = 0; i < rtd->num_codecs; i++) { |
690 | codec_dai = rtd->codec_dais[i]; | |
691 | if (codec_dai->driver->ops->shutdown) | |
692 | codec_dai->driver->ops->shutdown(substream, codec_dai); | |
693 | } | |
ddee627c LG |
694 | |
695 | if (rtd->dai_link->ops && rtd->dai_link->ops->shutdown) | |
696 | rtd->dai_link->ops->shutdown(substream); | |
697 | ||
698 | if (platform->driver->ops && platform->driver->ops->close) | |
699 | platform->driver->ops->close(substream); | |
ddee627c LG |
700 | |
701 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { | |
208a1589 | 702 | if (snd_soc_runtime_ignore_pmdown_time(rtd)) { |
1d69c5c5 PU |
703 | /* powered down playback stream now */ |
704 | snd_soc_dapm_stream_event(rtd, | |
7bd3a6f3 | 705 | SNDRV_PCM_STREAM_PLAYBACK, |
7bd3a6f3 | 706 | SND_SOC_DAPM_STREAM_STOP); |
1d69c5c5 PU |
707 | } else { |
708 | /* start delayed pop wq here for playback streams */ | |
9bffb1fb | 709 | rtd->pop_wait = 1; |
d4e1a73a MB |
710 | queue_delayed_work(system_power_efficient_wq, |
711 | &rtd->delayed_work, | |
712 | msecs_to_jiffies(rtd->pmdown_time)); | |
1d69c5c5 | 713 | } |
ddee627c LG |
714 | } else { |
715 | /* capture streams can be powered down now */ | |
7bd3a6f3 | 716 | snd_soc_dapm_stream_event(rtd, SNDRV_PCM_STREAM_CAPTURE, |
d9b0951b | 717 | SND_SOC_DAPM_STREAM_STOP); |
ddee627c LG |
718 | } |
719 | ||
b8c0dab9 | 720 | mutex_unlock(&rtd->pcm_mutex); |
d6652ef8 | 721 | |
90be711e KM |
722 | for_each_rtdcom(rtd, rtdcom) { |
723 | component = rtdcom->component; | |
3f809783 | 724 | |
90be711e KM |
725 | pm_runtime_mark_last_busy(component->dev); |
726 | pm_runtime_put_autosuspend(component->dev); | |
3f809783 SK |
727 | } |
728 | ||
2e5894d7 BC |
729 | for (i = 0; i < rtd->num_codecs; i++) { |
730 | if (!rtd->codec_dais[i]->active) | |
731 | pinctrl_pm_select_sleep_state(rtd->codec_dais[i]->dev); | |
732 | } | |
988e8cc4 NC |
733 | if (!cpu_dai->active) |
734 | pinctrl_pm_select_sleep_state(cpu_dai->dev); | |
d6652ef8 | 735 | |
ddee627c LG |
736 | return 0; |
737 | } | |
738 | ||
739 | /* | |
740 | * Called by ALSA when the PCM substream is prepared, can set format, sample | |
741 | * rate, etc. This function is non atomic and can be called multiple times, | |
742 | * it can refer to the runtime info. | |
743 | */ | |
744 | static int soc_pcm_prepare(struct snd_pcm_substream *substream) | |
745 | { | |
746 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
747 | struct snd_soc_platform *platform = rtd->platform; | |
748 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
2e5894d7 BC |
749 | struct snd_soc_dai *codec_dai; |
750 | int i, ret = 0; | |
ddee627c | 751 | |
b8c0dab9 | 752 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); |
ddee627c LG |
753 | |
754 | if (rtd->dai_link->ops && rtd->dai_link->ops->prepare) { | |
755 | ret = rtd->dai_link->ops->prepare(substream); | |
756 | if (ret < 0) { | |
103d84a3 LG |
757 | dev_err(rtd->card->dev, "ASoC: machine prepare error:" |
758 | " %d\n", ret); | |
ddee627c LG |
759 | goto out; |
760 | } | |
761 | } | |
762 | ||
763 | if (platform->driver->ops && platform->driver->ops->prepare) { | |
764 | ret = platform->driver->ops->prepare(substream); | |
765 | if (ret < 0) { | |
103d84a3 LG |
766 | dev_err(platform->dev, "ASoC: platform prepare error:" |
767 | " %d\n", ret); | |
ddee627c LG |
768 | goto out; |
769 | } | |
770 | } | |
771 | ||
2e5894d7 BC |
772 | for (i = 0; i < rtd->num_codecs; i++) { |
773 | codec_dai = rtd->codec_dais[i]; | |
774 | if (codec_dai->driver->ops && codec_dai->driver->ops->prepare) { | |
775 | ret = codec_dai->driver->ops->prepare(substream, | |
776 | codec_dai); | |
777 | if (ret < 0) { | |
778 | dev_err(codec_dai->dev, | |
90cc7f1c JN |
779 | "ASoC: codec DAI prepare error: %d\n", |
780 | ret); | |
2e5894d7 BC |
781 | goto out; |
782 | } | |
ddee627c LG |
783 | } |
784 | } | |
785 | ||
c5914b0a | 786 | if (cpu_dai->driver->ops && cpu_dai->driver->ops->prepare) { |
ddee627c LG |
787 | ret = cpu_dai->driver->ops->prepare(substream, cpu_dai); |
788 | if (ret < 0) { | |
90cc7f1c JN |
789 | dev_err(cpu_dai->dev, |
790 | "ASoC: cpu DAI prepare error: %d\n", ret); | |
ddee627c LG |
791 | goto out; |
792 | } | |
793 | } | |
794 | ||
795 | /* cancel any delayed stream shutdown that is pending */ | |
796 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK && | |
9bffb1fb MLC |
797 | rtd->pop_wait) { |
798 | rtd->pop_wait = 0; | |
ddee627c LG |
799 | cancel_delayed_work(&rtd->delayed_work); |
800 | } | |
801 | ||
d9b0951b LG |
802 | snd_soc_dapm_stream_event(rtd, substream->stream, |
803 | SND_SOC_DAPM_STREAM_START); | |
ddee627c | 804 | |
2e5894d7 BC |
805 | for (i = 0; i < rtd->num_codecs; i++) |
806 | snd_soc_dai_digital_mute(rtd->codec_dais[i], 0, | |
807 | substream->stream); | |
ae11601b | 808 | snd_soc_dai_digital_mute(cpu_dai, 0, substream->stream); |
ddee627c LG |
809 | |
810 | out: | |
b8c0dab9 | 811 | mutex_unlock(&rtd->pcm_mutex); |
ddee627c LG |
812 | return ret; |
813 | } | |
814 | ||
2e5894d7 BC |
815 | static void soc_pcm_codec_params_fixup(struct snd_pcm_hw_params *params, |
816 | unsigned int mask) | |
817 | { | |
818 | struct snd_interval *interval; | |
819 | int channels = hweight_long(mask); | |
820 | ||
821 | interval = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS); | |
822 | interval->min = channels; | |
823 | interval->max = channels; | |
824 | } | |
825 | ||
93e6958a BC |
826 | int soc_dai_hw_params(struct snd_pcm_substream *substream, |
827 | struct snd_pcm_hw_params *params, | |
828 | struct snd_soc_dai *dai) | |
829 | { | |
830 | int ret; | |
831 | ||
832 | if (dai->driver->ops && dai->driver->ops->hw_params) { | |
833 | ret = dai->driver->ops->hw_params(substream, params, dai); | |
834 | if (ret < 0) { | |
835 | dev_err(dai->dev, "ASoC: can't set %s hw params: %d\n", | |
836 | dai->name, ret); | |
837 | return ret; | |
838 | } | |
839 | } | |
840 | ||
841 | return 0; | |
842 | } | |
843 | ||
ddee627c LG |
844 | /* |
845 | * Called by ALSA when the hardware params are set by application. This | |
846 | * function can also be called multiple times and can allocate buffers | |
847 | * (using snd_pcm_lib_* ). It's non-atomic. | |
848 | */ | |
849 | static int soc_pcm_hw_params(struct snd_pcm_substream *substream, | |
850 | struct snd_pcm_hw_params *params) | |
851 | { | |
852 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
853 | struct snd_soc_platform *platform = rtd->platform; | |
854 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
2e5894d7 | 855 | int i, ret = 0; |
ddee627c | 856 | |
b8c0dab9 | 857 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); |
ddee627c | 858 | |
3635bf09 NC |
859 | ret = soc_pcm_params_symmetry(substream, params); |
860 | if (ret) | |
861 | goto out; | |
862 | ||
ddee627c LG |
863 | if (rtd->dai_link->ops && rtd->dai_link->ops->hw_params) { |
864 | ret = rtd->dai_link->ops->hw_params(substream, params); | |
865 | if (ret < 0) { | |
103d84a3 LG |
866 | dev_err(rtd->card->dev, "ASoC: machine hw_params" |
867 | " failed: %d\n", ret); | |
ddee627c LG |
868 | goto out; |
869 | } | |
870 | } | |
871 | ||
2e5894d7 BC |
872 | for (i = 0; i < rtd->num_codecs; i++) { |
873 | struct snd_soc_dai *codec_dai = rtd->codec_dais[i]; | |
874 | struct snd_pcm_hw_params codec_params; | |
875 | ||
cde79035 RW |
876 | /* |
877 | * Skip CODECs which don't support the current stream type, | |
878 | * the idea being that if a CODEC is not used for the currently | |
879 | * set up transfer direction, it should not need to be | |
880 | * configured, especially since the configuration used might | |
881 | * not even be supported by that CODEC. There may be cases | |
882 | * however where a CODEC needs to be set up although it is | |
883 | * actually not being used for the transfer, e.g. if a | |
884 | * capture-only CODEC is acting as an LRCLK and/or BCLK master | |
885 | * for the DAI link including a playback-only CODEC. | |
886 | * If this becomes necessary, we will have to augment the | |
887 | * machine driver setup with information on how to act, so | |
888 | * we can do the right thing here. | |
889 | */ | |
890 | if (!snd_soc_dai_stream_valid(codec_dai, substream->stream)) | |
891 | continue; | |
892 | ||
2e5894d7 BC |
893 | /* copy params for each codec */ |
894 | codec_params = *params; | |
895 | ||
896 | /* fixup params based on TDM slot masks */ | |
897 | if (codec_dai->tx_mask) | |
898 | soc_pcm_codec_params_fixup(&codec_params, | |
899 | codec_dai->tx_mask); | |
900 | if (codec_dai->rx_mask) | |
901 | soc_pcm_codec_params_fixup(&codec_params, | |
902 | codec_dai->rx_mask); | |
903 | ||
93e6958a BC |
904 | ret = soc_dai_hw_params(substream, &codec_params, codec_dai); |
905 | if(ret < 0) | |
ddee627c | 906 | goto codec_err; |
ddee627c | 907 | |
2e5894d7 BC |
908 | codec_dai->rate = params_rate(&codec_params); |
909 | codec_dai->channels = params_channels(&codec_params); | |
910 | codec_dai->sample_bits = snd_pcm_format_physical_width( | |
911 | params_format(&codec_params)); | |
ddee627c LG |
912 | } |
913 | ||
93e6958a BC |
914 | ret = soc_dai_hw_params(substream, params, cpu_dai); |
915 | if (ret < 0) | |
916 | goto interface_err; | |
ddee627c LG |
917 | |
918 | if (platform->driver->ops && platform->driver->ops->hw_params) { | |
919 | ret = platform->driver->ops->hw_params(substream, params); | |
920 | if (ret < 0) { | |
103d84a3 | 921 | dev_err(platform->dev, "ASoC: %s hw params failed: %d\n", |
f4333203 | 922 | platform->component.name, ret); |
ddee627c LG |
923 | goto platform_err; |
924 | } | |
925 | } | |
926 | ||
3635bf09 | 927 | /* store the parameters for each DAIs */ |
17841020 | 928 | cpu_dai->rate = params_rate(params); |
3635bf09 NC |
929 | cpu_dai->channels = params_channels(params); |
930 | cpu_dai->sample_bits = | |
931 | snd_pcm_format_physical_width(params_format(params)); | |
932 | ||
ddee627c | 933 | out: |
b8c0dab9 | 934 | mutex_unlock(&rtd->pcm_mutex); |
ddee627c LG |
935 | return ret; |
936 | ||
937 | platform_err: | |
c5914b0a | 938 | if (cpu_dai->driver->ops && cpu_dai->driver->ops->hw_free) |
ddee627c LG |
939 | cpu_dai->driver->ops->hw_free(substream, cpu_dai); |
940 | ||
941 | interface_err: | |
2e5894d7 | 942 | i = rtd->num_codecs; |
ddee627c LG |
943 | |
944 | codec_err: | |
2e5894d7 BC |
945 | while (--i >= 0) { |
946 | struct snd_soc_dai *codec_dai = rtd->codec_dais[i]; | |
947 | if (codec_dai->driver->ops && codec_dai->driver->ops->hw_free) | |
948 | codec_dai->driver->ops->hw_free(substream, codec_dai); | |
949 | codec_dai->rate = 0; | |
950 | } | |
951 | ||
ddee627c LG |
952 | if (rtd->dai_link->ops && rtd->dai_link->ops->hw_free) |
953 | rtd->dai_link->ops->hw_free(substream); | |
954 | ||
b8c0dab9 | 955 | mutex_unlock(&rtd->pcm_mutex); |
ddee627c LG |
956 | return ret; |
957 | } | |
958 | ||
959 | /* | |
960 | * Frees resources allocated by hw_params, can be called multiple times | |
961 | */ | |
962 | static int soc_pcm_hw_free(struct snd_pcm_substream *substream) | |
963 | { | |
964 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
965 | struct snd_soc_platform *platform = rtd->platform; | |
966 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
2e5894d7 | 967 | struct snd_soc_dai *codec_dai; |
7f62b6ee | 968 | bool playback = substream->stream == SNDRV_PCM_STREAM_PLAYBACK; |
2e5894d7 | 969 | int i; |
ddee627c | 970 | |
b8c0dab9 | 971 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); |
ddee627c | 972 | |
d3383420 NC |
973 | /* clear the corresponding DAIs parameters when going to be inactive */ |
974 | if (cpu_dai->active == 1) { | |
975 | cpu_dai->rate = 0; | |
976 | cpu_dai->channels = 0; | |
977 | cpu_dai->sample_bits = 0; | |
978 | } | |
979 | ||
2e5894d7 BC |
980 | for (i = 0; i < rtd->num_codecs; i++) { |
981 | codec_dai = rtd->codec_dais[i]; | |
982 | if (codec_dai->active == 1) { | |
983 | codec_dai->rate = 0; | |
984 | codec_dai->channels = 0; | |
985 | codec_dai->sample_bits = 0; | |
986 | } | |
d3383420 NC |
987 | } |
988 | ||
ddee627c | 989 | /* apply codec digital mute */ |
2e5894d7 BC |
990 | for (i = 0; i < rtd->num_codecs; i++) { |
991 | if ((playback && rtd->codec_dais[i]->playback_active == 1) || | |
992 | (!playback && rtd->codec_dais[i]->capture_active == 1)) | |
993 | snd_soc_dai_digital_mute(rtd->codec_dais[i], 1, | |
994 | substream->stream); | |
995 | } | |
ddee627c LG |
996 | |
997 | /* free any machine hw params */ | |
998 | if (rtd->dai_link->ops && rtd->dai_link->ops->hw_free) | |
999 | rtd->dai_link->ops->hw_free(substream); | |
1000 | ||
1001 | /* free any DMA resources */ | |
1002 | if (platform->driver->ops && platform->driver->ops->hw_free) | |
1003 | platform->driver->ops->hw_free(substream); | |
1004 | ||
1005 | /* now free hw params for the DAIs */ | |
2e5894d7 BC |
1006 | for (i = 0; i < rtd->num_codecs; i++) { |
1007 | codec_dai = rtd->codec_dais[i]; | |
1008 | if (codec_dai->driver->ops && codec_dai->driver->ops->hw_free) | |
1009 | codec_dai->driver->ops->hw_free(substream, codec_dai); | |
1010 | } | |
ddee627c | 1011 | |
c5914b0a | 1012 | if (cpu_dai->driver->ops && cpu_dai->driver->ops->hw_free) |
ddee627c LG |
1013 | cpu_dai->driver->ops->hw_free(substream, cpu_dai); |
1014 | ||
b8c0dab9 | 1015 | mutex_unlock(&rtd->pcm_mutex); |
ddee627c LG |
1016 | return 0; |
1017 | } | |
1018 | ||
1019 | static int soc_pcm_trigger(struct snd_pcm_substream *substream, int cmd) | |
1020 | { | |
1021 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
1022 | struct snd_soc_platform *platform = rtd->platform; | |
1023 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
2e5894d7 BC |
1024 | struct snd_soc_dai *codec_dai; |
1025 | int i, ret; | |
1026 | ||
1027 | for (i = 0; i < rtd->num_codecs; i++) { | |
1028 | codec_dai = rtd->codec_dais[i]; | |
1029 | if (codec_dai->driver->ops && codec_dai->driver->ops->trigger) { | |
1030 | ret = codec_dai->driver->ops->trigger(substream, | |
1031 | cmd, codec_dai); | |
1032 | if (ret < 0) | |
1033 | return ret; | |
1034 | } | |
ddee627c LG |
1035 | } |
1036 | ||
1037 | if (platform->driver->ops && platform->driver->ops->trigger) { | |
1038 | ret = platform->driver->ops->trigger(substream, cmd); | |
1039 | if (ret < 0) | |
1040 | return ret; | |
1041 | } | |
1042 | ||
c5914b0a | 1043 | if (cpu_dai->driver->ops && cpu_dai->driver->ops->trigger) { |
ddee627c LG |
1044 | ret = cpu_dai->driver->ops->trigger(substream, cmd, cpu_dai); |
1045 | if (ret < 0) | |
1046 | return ret; | |
1047 | } | |
4792b0db JN |
1048 | |
1049 | if (rtd->dai_link->ops && rtd->dai_link->ops->trigger) { | |
1050 | ret = rtd->dai_link->ops->trigger(substream, cmd); | |
1051 | if (ret < 0) | |
1052 | return ret; | |
1053 | } | |
1054 | ||
ddee627c LG |
1055 | return 0; |
1056 | } | |
1057 | ||
45c0a188 MB |
1058 | static int soc_pcm_bespoke_trigger(struct snd_pcm_substream *substream, |
1059 | int cmd) | |
07bf84aa LG |
1060 | { |
1061 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
07bf84aa | 1062 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
2e5894d7 BC |
1063 | struct snd_soc_dai *codec_dai; |
1064 | int i, ret; | |
1065 | ||
1066 | for (i = 0; i < rtd->num_codecs; i++) { | |
1067 | codec_dai = rtd->codec_dais[i]; | |
1068 | if (codec_dai->driver->ops && | |
1069 | codec_dai->driver->ops->bespoke_trigger) { | |
1070 | ret = codec_dai->driver->ops->bespoke_trigger(substream, | |
1071 | cmd, codec_dai); | |
1072 | if (ret < 0) | |
1073 | return ret; | |
1074 | } | |
07bf84aa LG |
1075 | } |
1076 | ||
c5914b0a | 1077 | if (cpu_dai->driver->ops && cpu_dai->driver->ops->bespoke_trigger) { |
07bf84aa LG |
1078 | ret = cpu_dai->driver->ops->bespoke_trigger(substream, cmd, cpu_dai); |
1079 | if (ret < 0) | |
1080 | return ret; | |
1081 | } | |
1082 | return 0; | |
1083 | } | |
ddee627c LG |
1084 | /* |
1085 | * soc level wrapper for pointer callback | |
1086 | * If cpu_dai, codec_dai, platform driver has the delay callback, than | |
1087 | * the runtime->delay will be updated accordingly. | |
1088 | */ | |
1089 | static snd_pcm_uframes_t soc_pcm_pointer(struct snd_pcm_substream *substream) | |
1090 | { | |
1091 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
1092 | struct snd_soc_platform *platform = rtd->platform; | |
1093 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
2e5894d7 | 1094 | struct snd_soc_dai *codec_dai; |
ddee627c LG |
1095 | struct snd_pcm_runtime *runtime = substream->runtime; |
1096 | snd_pcm_uframes_t offset = 0; | |
1097 | snd_pcm_sframes_t delay = 0; | |
2e5894d7 BC |
1098 | snd_pcm_sframes_t codec_delay = 0; |
1099 | int i; | |
ddee627c LG |
1100 | |
1101 | if (platform->driver->ops && platform->driver->ops->pointer) | |
1102 | offset = platform->driver->ops->pointer(substream); | |
1103 | ||
c5914b0a | 1104 | if (cpu_dai->driver->ops && cpu_dai->driver->ops->delay) |
ddee627c LG |
1105 | delay += cpu_dai->driver->ops->delay(substream, cpu_dai); |
1106 | ||
2e5894d7 BC |
1107 | for (i = 0; i < rtd->num_codecs; i++) { |
1108 | codec_dai = rtd->codec_dais[i]; | |
1109 | if (codec_dai->driver->ops && codec_dai->driver->ops->delay) | |
1110 | codec_delay = max(codec_delay, | |
1111 | codec_dai->driver->ops->delay(substream, | |
1112 | codec_dai)); | |
1113 | } | |
1114 | delay += codec_delay; | |
ddee627c | 1115 | |
ddee627c LG |
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; | |
1a497983 | 1218 | int i; |
01d7584c LG |
1219 | |
1220 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) { | |
1a497983 | 1221 | list_for_each_entry(be, &card->rtd_list, list) { |
01d7584c | 1222 | |
35ea0655 LG |
1223 | if (!be->dai_link->no_pcm) |
1224 | continue; | |
1225 | ||
2e5894d7 | 1226 | if (be->cpu_dai->playback_widget == widget) |
01d7584c | 1227 | return be; |
2e5894d7 | 1228 | |
1a497983 ML |
1229 | for (i = 0; i < be->num_codecs; i++) { |
1230 | struct snd_soc_dai *dai = be->codec_dais[i]; | |
2e5894d7 BC |
1231 | if (dai->playback_widget == widget) |
1232 | return be; | |
1233 | } | |
01d7584c LG |
1234 | } |
1235 | } else { | |
1236 | ||
1a497983 | 1237 | list_for_each_entry(be, &card->rtd_list, list) { |
01d7584c | 1238 | |
35ea0655 LG |
1239 | if (!be->dai_link->no_pcm) |
1240 | continue; | |
1241 | ||
2e5894d7 | 1242 | if (be->cpu_dai->capture_widget == widget) |
01d7584c | 1243 | return be; |
2e5894d7 | 1244 | |
1a497983 ML |
1245 | for (i = 0; i < be->num_codecs; i++) { |
1246 | struct snd_soc_dai *dai = be->codec_dais[i]; | |
2e5894d7 BC |
1247 | if (dai->capture_widget == widget) |
1248 | return be; | |
1249 | } | |
01d7584c LG |
1250 | } |
1251 | } | |
1252 | ||
103d84a3 | 1253 | dev_err(card->dev, "ASoC: can't get %s BE for %s\n", |
01d7584c LG |
1254 | stream ? "capture" : "playback", widget->name); |
1255 | return NULL; | |
1256 | } | |
1257 | ||
1258 | static inline struct snd_soc_dapm_widget * | |
37018610 | 1259 | dai_get_widget(struct snd_soc_dai *dai, int stream) |
01d7584c LG |
1260 | { |
1261 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) | |
37018610 | 1262 | return dai->playback_widget; |
01d7584c | 1263 | else |
37018610 | 1264 | return dai->capture_widget; |
01d7584c LG |
1265 | } |
1266 | ||
1267 | static int widget_in_list(struct snd_soc_dapm_widget_list *list, | |
1268 | struct snd_soc_dapm_widget *widget) | |
1269 | { | |
1270 | int i; | |
1271 | ||
1272 | for (i = 0; i < list->num_widgets; i++) { | |
1273 | if (widget == list->widgets[i]) | |
1274 | return 1; | |
1275 | } | |
1276 | ||
1277 | return 0; | |
1278 | } | |
1279 | ||
5fdd022c PS |
1280 | static bool dpcm_end_walk_at_be(struct snd_soc_dapm_widget *widget, |
1281 | enum snd_soc_dapm_direction dir) | |
1282 | { | |
1283 | struct snd_soc_card *card = widget->dapm->card; | |
1284 | struct snd_soc_pcm_runtime *rtd; | |
1285 | int i; | |
1286 | ||
1287 | if (dir == SND_SOC_DAPM_DIR_OUT) { | |
1288 | list_for_each_entry(rtd, &card->rtd_list, list) { | |
1289 | if (!rtd->dai_link->no_pcm) | |
1290 | continue; | |
1291 | ||
1292 | if (rtd->cpu_dai->playback_widget == widget) | |
1293 | return true; | |
1294 | ||
1295 | for (i = 0; i < rtd->num_codecs; ++i) { | |
1296 | struct snd_soc_dai *dai = rtd->codec_dais[i]; | |
1297 | if (dai->playback_widget == widget) | |
1298 | return true; | |
1299 | } | |
1300 | } | |
1301 | } else { /* SND_SOC_DAPM_DIR_IN */ | |
1302 | list_for_each_entry(rtd, &card->rtd_list, list) { | |
1303 | if (!rtd->dai_link->no_pcm) | |
1304 | continue; | |
1305 | ||
1306 | if (rtd->cpu_dai->capture_widget == widget) | |
1307 | return true; | |
1308 | ||
1309 | for (i = 0; i < rtd->num_codecs; ++i) { | |
1310 | struct snd_soc_dai *dai = rtd->codec_dais[i]; | |
1311 | if (dai->capture_widget == widget) | |
1312 | return true; | |
1313 | } | |
1314 | } | |
1315 | } | |
1316 | ||
1317 | return false; | |
1318 | } | |
1319 | ||
23607025 | 1320 | int dpcm_path_get(struct snd_soc_pcm_runtime *fe, |
1ce43acf | 1321 | int stream, struct snd_soc_dapm_widget_list **list) |
01d7584c LG |
1322 | { |
1323 | struct snd_soc_dai *cpu_dai = fe->cpu_dai; | |
01d7584c LG |
1324 | int paths; |
1325 | ||
01d7584c | 1326 | /* get number of valid DAI paths and their widgets */ |
6742064a | 1327 | paths = snd_soc_dapm_dai_get_connected_widgets(cpu_dai, stream, list, |
5fdd022c | 1328 | dpcm_end_walk_at_be); |
01d7584c | 1329 | |
103d84a3 | 1330 | dev_dbg(fe->dev, "ASoC: found %d audio %s paths\n", paths, |
01d7584c LG |
1331 | stream ? "capture" : "playback"); |
1332 | ||
01d7584c LG |
1333 | return paths; |
1334 | } | |
1335 | ||
01d7584c LG |
1336 | static int dpcm_prune_paths(struct snd_soc_pcm_runtime *fe, int stream, |
1337 | struct snd_soc_dapm_widget_list **list_) | |
1338 | { | |
1339 | struct snd_soc_dpcm *dpcm; | |
1340 | struct snd_soc_dapm_widget_list *list = *list_; | |
1341 | struct snd_soc_dapm_widget *widget; | |
1342 | int prune = 0; | |
1343 | ||
1344 | /* Destroy any old FE <--> BE connections */ | |
1345 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { | |
2e5894d7 | 1346 | unsigned int i; |
01d7584c LG |
1347 | |
1348 | /* is there a valid CPU DAI widget for this BE */ | |
37018610 | 1349 | widget = dai_get_widget(dpcm->be->cpu_dai, stream); |
01d7584c LG |
1350 | |
1351 | /* prune the BE if it's no longer in our active list */ | |
1352 | if (widget && widget_in_list(list, widget)) | |
1353 | continue; | |
1354 | ||
1355 | /* is there a valid CODEC DAI widget for this BE */ | |
2e5894d7 BC |
1356 | for (i = 0; i < dpcm->be->num_codecs; i++) { |
1357 | struct snd_soc_dai *dai = dpcm->be->codec_dais[i]; | |
1358 | widget = dai_get_widget(dai, stream); | |
01d7584c | 1359 | |
2e5894d7 BC |
1360 | /* prune the BE if it's no longer in our active list */ |
1361 | if (widget && widget_in_list(list, widget)) | |
1362 | continue; | |
1363 | } | |
01d7584c | 1364 | |
103d84a3 | 1365 | dev_dbg(fe->dev, "ASoC: pruning %s BE %s for %s\n", |
01d7584c LG |
1366 | stream ? "capture" : "playback", |
1367 | dpcm->be->dai_link->name, fe->dai_link->name); | |
1368 | dpcm->state = SND_SOC_DPCM_LINK_STATE_FREE; | |
1369 | dpcm->be->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_BE; | |
1370 | prune++; | |
1371 | } | |
1372 | ||
103d84a3 | 1373 | dev_dbg(fe->dev, "ASoC: found %d old BE paths for pruning\n", prune); |
01d7584c LG |
1374 | return prune; |
1375 | } | |
1376 | ||
1377 | static int dpcm_add_paths(struct snd_soc_pcm_runtime *fe, int stream, | |
1378 | struct snd_soc_dapm_widget_list **list_) | |
1379 | { | |
1380 | struct snd_soc_card *card = fe->card; | |
1381 | struct snd_soc_dapm_widget_list *list = *list_; | |
1382 | struct snd_soc_pcm_runtime *be; | |
1383 | int i, new = 0, err; | |
1384 | ||
1385 | /* Create any new FE <--> BE connections */ | |
1386 | for (i = 0; i < list->num_widgets; i++) { | |
1387 | ||
4616274d MB |
1388 | switch (list->widgets[i]->id) { |
1389 | case snd_soc_dapm_dai_in: | |
c5b8540d KC |
1390 | if (stream != SNDRV_PCM_STREAM_PLAYBACK) |
1391 | continue; | |
1392 | break; | |
4616274d | 1393 | case snd_soc_dapm_dai_out: |
c5b8540d KC |
1394 | if (stream != SNDRV_PCM_STREAM_CAPTURE) |
1395 | continue; | |
4616274d MB |
1396 | break; |
1397 | default: | |
01d7584c | 1398 | continue; |
4616274d | 1399 | } |
01d7584c LG |
1400 | |
1401 | /* is there a valid BE rtd for this widget */ | |
1402 | be = dpcm_get_be(card, list->widgets[i], stream); | |
1403 | if (!be) { | |
103d84a3 | 1404 | dev_err(fe->dev, "ASoC: no BE found for %s\n", |
01d7584c LG |
1405 | list->widgets[i]->name); |
1406 | continue; | |
1407 | } | |
1408 | ||
1409 | /* make sure BE is a real BE */ | |
1410 | if (!be->dai_link->no_pcm) | |
1411 | continue; | |
1412 | ||
1413 | /* don't connect if FE is not running */ | |
23607025 | 1414 | if (!fe->dpcm[stream].runtime && !fe->fe_compr) |
01d7584c LG |
1415 | continue; |
1416 | ||
1417 | /* newly connected FE and BE */ | |
1418 | err = dpcm_be_connect(fe, be, stream); | |
1419 | if (err < 0) { | |
103d84a3 | 1420 | dev_err(fe->dev, "ASoC: can't connect %s\n", |
01d7584c LG |
1421 | list->widgets[i]->name); |
1422 | break; | |
1423 | } else if (err == 0) /* already connected */ | |
1424 | continue; | |
1425 | ||
1426 | /* new */ | |
1427 | be->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_BE; | |
1428 | new++; | |
1429 | } | |
1430 | ||
103d84a3 | 1431 | dev_dbg(fe->dev, "ASoC: found %d new BE paths\n", new); |
01d7584c LG |
1432 | return new; |
1433 | } | |
1434 | ||
1435 | /* | |
1436 | * Find the corresponding BE DAIs that source or sink audio to this | |
1437 | * FE substream. | |
1438 | */ | |
23607025 | 1439 | int dpcm_process_paths(struct snd_soc_pcm_runtime *fe, |
01d7584c LG |
1440 | int stream, struct snd_soc_dapm_widget_list **list, int new) |
1441 | { | |
1442 | if (new) | |
1443 | return dpcm_add_paths(fe, stream, list); | |
1444 | else | |
1445 | return dpcm_prune_paths(fe, stream, list); | |
1446 | } | |
1447 | ||
23607025 | 1448 | void dpcm_clear_pending_state(struct snd_soc_pcm_runtime *fe, int stream) |
01d7584c LG |
1449 | { |
1450 | struct snd_soc_dpcm *dpcm; | |
1451 | ||
1452 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) | |
1453 | dpcm->be->dpcm[stream].runtime_update = | |
1454 | SND_SOC_DPCM_UPDATE_NO; | |
1455 | } | |
1456 | ||
1457 | static void dpcm_be_dai_startup_unwind(struct snd_soc_pcm_runtime *fe, | |
1458 | int stream) | |
1459 | { | |
1460 | struct snd_soc_dpcm *dpcm; | |
1461 | ||
1462 | /* disable any enabled and non active backends */ | |
1463 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { | |
1464 | ||
1465 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
1466 | struct snd_pcm_substream *be_substream = | |
1467 | snd_soc_dpcm_get_substream(be, stream); | |
1468 | ||
1469 | if (be->dpcm[stream].users == 0) | |
103d84a3 | 1470 | dev_err(be->dev, "ASoC: no users %s at close - state %d\n", |
01d7584c LG |
1471 | stream ? "capture" : "playback", |
1472 | be->dpcm[stream].state); | |
1473 | ||
1474 | if (--be->dpcm[stream].users != 0) | |
1475 | continue; | |
1476 | ||
1477 | if (be->dpcm[stream].state != SND_SOC_DPCM_STATE_OPEN) | |
1478 | continue; | |
1479 | ||
1480 | soc_pcm_close(be_substream); | |
1481 | be_substream->runtime = NULL; | |
1482 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_CLOSE; | |
1483 | } | |
1484 | } | |
1485 | ||
23607025 | 1486 | int dpcm_be_dai_startup(struct snd_soc_pcm_runtime *fe, int stream) |
01d7584c LG |
1487 | { |
1488 | struct snd_soc_dpcm *dpcm; | |
1489 | int err, count = 0; | |
1490 | ||
1491 | /* only startup BE DAIs that are either sinks or sources to this FE DAI */ | |
1492 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { | |
1493 | ||
1494 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
1495 | struct snd_pcm_substream *be_substream = | |
1496 | snd_soc_dpcm_get_substream(be, stream); | |
1497 | ||
2062b4c5 RKAL |
1498 | if (!be_substream) { |
1499 | dev_err(be->dev, "ASoC: no backend %s stream\n", | |
1500 | stream ? "capture" : "playback"); | |
1501 | continue; | |
1502 | } | |
1503 | ||
01d7584c LG |
1504 | /* is this op for this BE ? */ |
1505 | if (!snd_soc_dpcm_be_can_update(fe, be, stream)) | |
1506 | continue; | |
1507 | ||
1508 | /* first time the dpcm is open ? */ | |
1509 | if (be->dpcm[stream].users == DPCM_MAX_BE_USERS) | |
103d84a3 | 1510 | dev_err(be->dev, "ASoC: too many users %s at open %d\n", |
01d7584c LG |
1511 | stream ? "capture" : "playback", |
1512 | be->dpcm[stream].state); | |
1513 | ||
1514 | if (be->dpcm[stream].users++ != 0) | |
1515 | continue; | |
1516 | ||
1517 | if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_NEW) && | |
1518 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_CLOSE)) | |
1519 | continue; | |
1520 | ||
2062b4c5 RKAL |
1521 | dev_dbg(be->dev, "ASoC: open %s BE %s\n", |
1522 | stream ? "capture" : "playback", be->dai_link->name); | |
01d7584c LG |
1523 | |
1524 | be_substream->runtime = be->dpcm[stream].runtime; | |
1525 | err = soc_pcm_open(be_substream); | |
1526 | if (err < 0) { | |
103d84a3 | 1527 | dev_err(be->dev, "ASoC: BE open failed %d\n", err); |
01d7584c LG |
1528 | be->dpcm[stream].users--; |
1529 | if (be->dpcm[stream].users < 0) | |
103d84a3 | 1530 | dev_err(be->dev, "ASoC: no users %s at unwind %d\n", |
01d7584c LG |
1531 | stream ? "capture" : "playback", |
1532 | be->dpcm[stream].state); | |
1533 | ||
1534 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_CLOSE; | |
1535 | goto unwind; | |
1536 | } | |
1537 | ||
1538 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_OPEN; | |
1539 | count++; | |
1540 | } | |
1541 | ||
1542 | return count; | |
1543 | ||
1544 | unwind: | |
1545 | /* disable any enabled and non active backends */ | |
1546 | list_for_each_entry_continue_reverse(dpcm, &fe->dpcm[stream].be_clients, list_be) { | |
1547 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
1548 | struct snd_pcm_substream *be_substream = | |
1549 | snd_soc_dpcm_get_substream(be, stream); | |
1550 | ||
1551 | if (!snd_soc_dpcm_be_can_update(fe, be, stream)) | |
1552 | continue; | |
1553 | ||
1554 | if (be->dpcm[stream].users == 0) | |
103d84a3 | 1555 | dev_err(be->dev, "ASoC: no users %s at close %d\n", |
01d7584c LG |
1556 | stream ? "capture" : "playback", |
1557 | be->dpcm[stream].state); | |
1558 | ||
1559 | if (--be->dpcm[stream].users != 0) | |
1560 | continue; | |
1561 | ||
1562 | if (be->dpcm[stream].state != SND_SOC_DPCM_STATE_OPEN) | |
1563 | continue; | |
1564 | ||
1565 | soc_pcm_close(be_substream); | |
1566 | be_substream->runtime = NULL; | |
1567 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_CLOSE; | |
1568 | } | |
1569 | ||
1570 | return err; | |
1571 | } | |
1572 | ||
08ae9b45 | 1573 | static void dpcm_init_runtime_hw(struct snd_pcm_runtime *runtime, |
b073ed4e KM |
1574 | struct snd_soc_pcm_stream *stream, |
1575 | u64 formats) | |
08ae9b45 LPC |
1576 | { |
1577 | runtime->hw.rate_min = stream->rate_min; | |
1578 | runtime->hw.rate_max = stream->rate_max; | |
1579 | runtime->hw.channels_min = stream->channels_min; | |
1580 | runtime->hw.channels_max = stream->channels_max; | |
002220a9 | 1581 | if (runtime->hw.formats) |
b073ed4e | 1582 | runtime->hw.formats &= formats & stream->formats; |
002220a9 | 1583 | else |
b073ed4e | 1584 | runtime->hw.formats = formats & stream->formats; |
08ae9b45 LPC |
1585 | runtime->hw.rates = stream->rates; |
1586 | } | |
1587 | ||
b073ed4e KM |
1588 | static u64 dpcm_runtime_base_format(struct snd_pcm_substream *substream) |
1589 | { | |
1590 | struct snd_soc_pcm_runtime *fe = substream->private_data; | |
1591 | struct snd_soc_dpcm *dpcm; | |
1592 | u64 formats = ULLONG_MAX; | |
1593 | int stream = substream->stream; | |
1594 | ||
1595 | if (!fe->dai_link->dpcm_merged_format) | |
1596 | return formats; | |
1597 | ||
1598 | /* | |
1599 | * It returns merged BE codec format | |
1600 | * if FE want to use it (= dpcm_merged_format) | |
1601 | */ | |
1602 | ||
1603 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { | |
1604 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
1605 | struct snd_soc_dai_driver *codec_dai_drv; | |
1606 | struct snd_soc_pcm_stream *codec_stream; | |
1607 | int i; | |
1608 | ||
1609 | for (i = 0; i < be->num_codecs; i++) { | |
1610 | codec_dai_drv = be->codec_dais[i]->driver; | |
1611 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) | |
1612 | codec_stream = &codec_dai_drv->playback; | |
1613 | else | |
1614 | codec_stream = &codec_dai_drv->capture; | |
1615 | ||
1616 | formats &= codec_stream->formats; | |
1617 | } | |
1618 | } | |
1619 | ||
1620 | return formats; | |
1621 | } | |
1622 | ||
45c0a188 | 1623 | static void dpcm_set_fe_runtime(struct snd_pcm_substream *substream) |
01d7584c LG |
1624 | { |
1625 | struct snd_pcm_runtime *runtime = substream->runtime; | |
1626 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
1627 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
1628 | struct snd_soc_dai_driver *cpu_dai_drv = cpu_dai->driver; | |
b073ed4e | 1629 | u64 format = dpcm_runtime_base_format(substream); |
01d7584c | 1630 | |
08ae9b45 | 1631 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) |
b073ed4e | 1632 | dpcm_init_runtime_hw(runtime, &cpu_dai_drv->playback, format); |
08ae9b45 | 1633 | else |
b073ed4e | 1634 | dpcm_init_runtime_hw(runtime, &cpu_dai_drv->capture, format); |
01d7584c LG |
1635 | } |
1636 | ||
ea9d0d77 TI |
1637 | static int dpcm_fe_dai_do_trigger(struct snd_pcm_substream *substream, int cmd); |
1638 | ||
1639 | /* Set FE's runtime_update state; the state is protected via PCM stream lock | |
1640 | * for avoiding the race with trigger callback. | |
1641 | * If the state is unset and a trigger is pending while the previous operation, | |
1642 | * process the pending trigger action here. | |
1643 | */ | |
1644 | static void dpcm_set_fe_update_state(struct snd_soc_pcm_runtime *fe, | |
1645 | int stream, enum snd_soc_dpcm_update state) | |
1646 | { | |
1647 | struct snd_pcm_substream *substream = | |
1648 | snd_soc_dpcm_get_substream(fe, stream); | |
1649 | ||
1650 | snd_pcm_stream_lock_irq(substream); | |
1651 | if (state == SND_SOC_DPCM_UPDATE_NO && fe->dpcm[stream].trigger_pending) { | |
1652 | dpcm_fe_dai_do_trigger(substream, | |
1653 | fe->dpcm[stream].trigger_pending - 1); | |
1654 | fe->dpcm[stream].trigger_pending = 0; | |
1655 | } | |
1656 | fe->dpcm[stream].runtime_update = state; | |
1657 | snd_pcm_stream_unlock_irq(substream); | |
1658 | } | |
1659 | ||
906c7d69 PL |
1660 | static int dpcm_apply_symmetry(struct snd_pcm_substream *fe_substream, |
1661 | int stream) | |
1662 | { | |
1663 | struct snd_soc_dpcm *dpcm; | |
1664 | struct snd_soc_pcm_runtime *fe = fe_substream->private_data; | |
1665 | struct snd_soc_dai *fe_cpu_dai = fe->cpu_dai; | |
1666 | int err; | |
1667 | ||
1668 | /* apply symmetry for FE */ | |
1669 | if (soc_pcm_has_symmetry(fe_substream)) | |
1670 | fe_substream->runtime->hw.info |= SNDRV_PCM_INFO_JOINT_DUPLEX; | |
1671 | ||
1672 | /* Symmetry only applies if we've got an active stream. */ | |
1673 | if (fe_cpu_dai->active) { | |
1674 | err = soc_pcm_apply_symmetry(fe_substream, fe_cpu_dai); | |
1675 | if (err < 0) | |
1676 | return err; | |
1677 | } | |
1678 | ||
1679 | /* apply symmetry for BE */ | |
1680 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { | |
1681 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
1682 | struct snd_pcm_substream *be_substream = | |
1683 | snd_soc_dpcm_get_substream(be, stream); | |
1684 | struct snd_soc_pcm_runtime *rtd = be_substream->private_data; | |
1685 | int i; | |
1686 | ||
f1176614 JK |
1687 | if (rtd->dai_link->be_hw_params_fixup) |
1688 | continue; | |
1689 | ||
906c7d69 PL |
1690 | if (soc_pcm_has_symmetry(be_substream)) |
1691 | be_substream->runtime->hw.info |= SNDRV_PCM_INFO_JOINT_DUPLEX; | |
1692 | ||
1693 | /* Symmetry only applies if we've got an active stream. */ | |
1694 | if (rtd->cpu_dai->active) { | |
1695 | err = soc_pcm_apply_symmetry(be_substream, rtd->cpu_dai); | |
1696 | if (err < 0) | |
1697 | return err; | |
1698 | } | |
1699 | ||
1700 | for (i = 0; i < rtd->num_codecs; i++) { | |
1701 | if (rtd->codec_dais[i]->active) { | |
1702 | err = soc_pcm_apply_symmetry(be_substream, | |
1703 | rtd->codec_dais[i]); | |
1704 | if (err < 0) | |
1705 | return err; | |
1706 | } | |
1707 | } | |
1708 | } | |
1709 | ||
1710 | return 0; | |
1711 | } | |
1712 | ||
01d7584c LG |
1713 | static int dpcm_fe_dai_startup(struct snd_pcm_substream *fe_substream) |
1714 | { | |
1715 | struct snd_soc_pcm_runtime *fe = fe_substream->private_data; | |
1716 | struct snd_pcm_runtime *runtime = fe_substream->runtime; | |
1717 | int stream = fe_substream->stream, ret = 0; | |
1718 | ||
ea9d0d77 | 1719 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_FE); |
01d7584c LG |
1720 | |
1721 | ret = dpcm_be_dai_startup(fe, fe_substream->stream); | |
1722 | if (ret < 0) { | |
103d84a3 | 1723 | dev_err(fe->dev,"ASoC: failed to start some BEs %d\n", ret); |
01d7584c LG |
1724 | goto be_err; |
1725 | } | |
1726 | ||
103d84a3 | 1727 | dev_dbg(fe->dev, "ASoC: open FE %s\n", fe->dai_link->name); |
01d7584c LG |
1728 | |
1729 | /* start the DAI frontend */ | |
1730 | ret = soc_pcm_open(fe_substream); | |
1731 | if (ret < 0) { | |
103d84a3 | 1732 | dev_err(fe->dev,"ASoC: failed to start FE %d\n", ret); |
01d7584c LG |
1733 | goto unwind; |
1734 | } | |
1735 | ||
1736 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_OPEN; | |
1737 | ||
1738 | dpcm_set_fe_runtime(fe_substream); | |
1739 | snd_pcm_limit_hw_rates(runtime); | |
1740 | ||
906c7d69 PL |
1741 | ret = dpcm_apply_symmetry(fe_substream, stream); |
1742 | if (ret < 0) { | |
1743 | dev_err(fe->dev, "ASoC: failed to apply dpcm symmetry %d\n", | |
1744 | ret); | |
1745 | goto unwind; | |
1746 | } | |
1747 | ||
ea9d0d77 | 1748 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_NO); |
01d7584c LG |
1749 | return 0; |
1750 | ||
1751 | unwind: | |
1752 | dpcm_be_dai_startup_unwind(fe, fe_substream->stream); | |
1753 | be_err: | |
ea9d0d77 | 1754 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_NO); |
01d7584c LG |
1755 | return ret; |
1756 | } | |
1757 | ||
23607025 | 1758 | int dpcm_be_dai_shutdown(struct snd_soc_pcm_runtime *fe, int stream) |
01d7584c LG |
1759 | { |
1760 | struct snd_soc_dpcm *dpcm; | |
1761 | ||
1762 | /* only shutdown BEs that are either sinks or sources to this FE DAI */ | |
1763 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { | |
1764 | ||
1765 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
1766 | struct snd_pcm_substream *be_substream = | |
1767 | snd_soc_dpcm_get_substream(be, stream); | |
1768 | ||
1769 | /* is this op for this BE ? */ | |
1770 | if (!snd_soc_dpcm_be_can_update(fe, be, stream)) | |
1771 | continue; | |
1772 | ||
1773 | if (be->dpcm[stream].users == 0) | |
103d84a3 | 1774 | dev_err(be->dev, "ASoC: no users %s at close - state %d\n", |
01d7584c LG |
1775 | stream ? "capture" : "playback", |
1776 | be->dpcm[stream].state); | |
1777 | ||
1778 | if (--be->dpcm[stream].users != 0) | |
1779 | continue; | |
1780 | ||
1781 | if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_FREE) && | |
1782 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_OPEN)) | |
1783 | continue; | |
1784 | ||
103d84a3 | 1785 | dev_dbg(be->dev, "ASoC: close BE %s\n", |
94d215cc | 1786 | be->dai_link->name); |
01d7584c LG |
1787 | |
1788 | soc_pcm_close(be_substream); | |
1789 | be_substream->runtime = NULL; | |
1790 | ||
1791 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_CLOSE; | |
1792 | } | |
1793 | return 0; | |
1794 | } | |
1795 | ||
1796 | static int dpcm_fe_dai_shutdown(struct snd_pcm_substream *substream) | |
1797 | { | |
1798 | struct snd_soc_pcm_runtime *fe = substream->private_data; | |
1799 | int stream = substream->stream; | |
1800 | ||
ea9d0d77 | 1801 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_FE); |
01d7584c LG |
1802 | |
1803 | /* shutdown the BEs */ | |
1804 | dpcm_be_dai_shutdown(fe, substream->stream); | |
1805 | ||
103d84a3 | 1806 | dev_dbg(fe->dev, "ASoC: close FE %s\n", fe->dai_link->name); |
01d7584c LG |
1807 | |
1808 | /* now shutdown the frontend */ | |
1809 | soc_pcm_close(substream); | |
1810 | ||
1811 | /* run the stream event for each BE */ | |
1812 | dpcm_dapm_stream_event(fe, stream, SND_SOC_DAPM_STREAM_STOP); | |
1813 | ||
1814 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_CLOSE; | |
ea9d0d77 | 1815 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_NO); |
01d7584c LG |
1816 | return 0; |
1817 | } | |
1818 | ||
23607025 | 1819 | int dpcm_be_dai_hw_free(struct snd_soc_pcm_runtime *fe, int stream) |
01d7584c LG |
1820 | { |
1821 | struct snd_soc_dpcm *dpcm; | |
1822 | ||
1823 | /* only hw_params backends that are either sinks or sources | |
1824 | * to this frontend DAI */ | |
1825 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { | |
1826 | ||
1827 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
1828 | struct snd_pcm_substream *be_substream = | |
1829 | snd_soc_dpcm_get_substream(be, stream); | |
1830 | ||
1831 | /* is this op for this BE ? */ | |
1832 | if (!snd_soc_dpcm_be_can_update(fe, be, stream)) | |
1833 | continue; | |
1834 | ||
1835 | /* only free hw when no longer used - check all FEs */ | |
1836 | if (!snd_soc_dpcm_can_be_free_stop(fe, be, stream)) | |
1837 | continue; | |
1838 | ||
36fba62c QZ |
1839 | /* do not free hw if this BE is used by other FE */ |
1840 | if (be->dpcm[stream].users > 1) | |
1841 | continue; | |
1842 | ||
01d7584c LG |
1843 | if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_PARAMS) && |
1844 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_PREPARE) && | |
1845 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_FREE) && | |
08b27848 | 1846 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_PAUSED) && |
5e82d2be VK |
1847 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_STOP) && |
1848 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_SUSPEND)) | |
01d7584c LG |
1849 | continue; |
1850 | ||
103d84a3 | 1851 | dev_dbg(be->dev, "ASoC: hw_free BE %s\n", |
94d215cc | 1852 | be->dai_link->name); |
01d7584c LG |
1853 | |
1854 | soc_pcm_hw_free(be_substream); | |
1855 | ||
1856 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_HW_FREE; | |
1857 | } | |
1858 | ||
1859 | return 0; | |
1860 | } | |
1861 | ||
45c0a188 | 1862 | static int dpcm_fe_dai_hw_free(struct snd_pcm_substream *substream) |
01d7584c LG |
1863 | { |
1864 | struct snd_soc_pcm_runtime *fe = substream->private_data; | |
1865 | int err, stream = substream->stream; | |
1866 | ||
1867 | mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME); | |
ea9d0d77 | 1868 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_FE); |
01d7584c | 1869 | |
103d84a3 | 1870 | dev_dbg(fe->dev, "ASoC: hw_free FE %s\n", fe->dai_link->name); |
01d7584c LG |
1871 | |
1872 | /* call hw_free on the frontend */ | |
1873 | err = soc_pcm_hw_free(substream); | |
1874 | if (err < 0) | |
103d84a3 | 1875 | dev_err(fe->dev,"ASoC: hw_free FE %s failed\n", |
01d7584c LG |
1876 | fe->dai_link->name); |
1877 | ||
1878 | /* only hw_params backends that are either sinks or sources | |
1879 | * to this frontend DAI */ | |
1880 | err = dpcm_be_dai_hw_free(fe, stream); | |
1881 | ||
1882 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_HW_FREE; | |
ea9d0d77 | 1883 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_NO); |
01d7584c LG |
1884 | |
1885 | mutex_unlock(&fe->card->mutex); | |
1886 | return 0; | |
1887 | } | |
1888 | ||
23607025 | 1889 | int dpcm_be_dai_hw_params(struct snd_soc_pcm_runtime *fe, int stream) |
01d7584c LG |
1890 | { |
1891 | struct snd_soc_dpcm *dpcm; | |
1892 | int ret; | |
1893 | ||
1894 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { | |
1895 | ||
1896 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
1897 | struct snd_pcm_substream *be_substream = | |
1898 | snd_soc_dpcm_get_substream(be, stream); | |
1899 | ||
1900 | /* is this op for this BE ? */ | |
1901 | if (!snd_soc_dpcm_be_can_update(fe, be, stream)) | |
1902 | continue; | |
1903 | ||
01d7584c LG |
1904 | /* copy params for each dpcm */ |
1905 | memcpy(&dpcm->hw_params, &fe->dpcm[stream].hw_params, | |
1906 | sizeof(struct snd_pcm_hw_params)); | |
1907 | ||
1908 | /* perform any hw_params fixups */ | |
1909 | if (be->dai_link->be_hw_params_fixup) { | |
1910 | ret = be->dai_link->be_hw_params_fixup(be, | |
1911 | &dpcm->hw_params); | |
1912 | if (ret < 0) { | |
1913 | dev_err(be->dev, | |
103d84a3 | 1914 | "ASoC: hw_params BE fixup failed %d\n", |
01d7584c LG |
1915 | ret); |
1916 | goto unwind; | |
1917 | } | |
1918 | } | |
1919 | ||
b0639bd2 KM |
1920 | /* only allow hw_params() if no connected FEs are running */ |
1921 | if (!snd_soc_dpcm_can_be_params(fe, be, stream)) | |
1922 | continue; | |
1923 | ||
1924 | if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_OPEN) && | |
1925 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_PARAMS) && | |
1926 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_FREE)) | |
1927 | continue; | |
1928 | ||
1929 | dev_dbg(be->dev, "ASoC: hw_params BE %s\n", | |
94d215cc | 1930 | be->dai_link->name); |
b0639bd2 | 1931 | |
01d7584c LG |
1932 | ret = soc_pcm_hw_params(be_substream, &dpcm->hw_params); |
1933 | if (ret < 0) { | |
1934 | dev_err(dpcm->be->dev, | |
103d84a3 | 1935 | "ASoC: hw_params BE failed %d\n", ret); |
01d7584c LG |
1936 | goto unwind; |
1937 | } | |
1938 | ||
1939 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_HW_PARAMS; | |
1940 | } | |
1941 | return 0; | |
1942 | ||
1943 | unwind: | |
1944 | /* disable any enabled and non active backends */ | |
1945 | list_for_each_entry_continue_reverse(dpcm, &fe->dpcm[stream].be_clients, list_be) { | |
1946 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
1947 | struct snd_pcm_substream *be_substream = | |
1948 | snd_soc_dpcm_get_substream(be, stream); | |
1949 | ||
1950 | if (!snd_soc_dpcm_be_can_update(fe, be, stream)) | |
1951 | continue; | |
1952 | ||
1953 | /* only allow hw_free() if no connected FEs are running */ | |
1954 | if (!snd_soc_dpcm_can_be_free_stop(fe, be, stream)) | |
1955 | continue; | |
1956 | ||
1957 | if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_OPEN) && | |
1958 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_PARAMS) && | |
1959 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_FREE) && | |
1960 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_STOP)) | |
1961 | continue; | |
1962 | ||
1963 | soc_pcm_hw_free(be_substream); | |
1964 | } | |
1965 | ||
1966 | return ret; | |
1967 | } | |
1968 | ||
45c0a188 MB |
1969 | static int dpcm_fe_dai_hw_params(struct snd_pcm_substream *substream, |
1970 | struct snd_pcm_hw_params *params) | |
01d7584c LG |
1971 | { |
1972 | struct snd_soc_pcm_runtime *fe = substream->private_data; | |
1973 | int ret, stream = substream->stream; | |
1974 | ||
1975 | mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME); | |
ea9d0d77 | 1976 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_FE); |
01d7584c LG |
1977 | |
1978 | memcpy(&fe->dpcm[substream->stream].hw_params, params, | |
1979 | sizeof(struct snd_pcm_hw_params)); | |
1980 | ret = dpcm_be_dai_hw_params(fe, substream->stream); | |
1981 | if (ret < 0) { | |
103d84a3 | 1982 | dev_err(fe->dev,"ASoC: hw_params BE failed %d\n", ret); |
01d7584c LG |
1983 | goto out; |
1984 | } | |
1985 | ||
103d84a3 | 1986 | dev_dbg(fe->dev, "ASoC: hw_params FE %s rate %d chan %x fmt %d\n", |
01d7584c LG |
1987 | fe->dai_link->name, params_rate(params), |
1988 | params_channels(params), params_format(params)); | |
1989 | ||
1990 | /* call hw_params on the frontend */ | |
1991 | ret = soc_pcm_hw_params(substream, params); | |
1992 | if (ret < 0) { | |
103d84a3 | 1993 | dev_err(fe->dev,"ASoC: hw_params FE failed %d\n", ret); |
01d7584c LG |
1994 | dpcm_be_dai_hw_free(fe, stream); |
1995 | } else | |
1996 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_HW_PARAMS; | |
1997 | ||
1998 | out: | |
ea9d0d77 | 1999 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_NO); |
01d7584c LG |
2000 | mutex_unlock(&fe->card->mutex); |
2001 | return ret; | |
2002 | } | |
2003 | ||
2004 | static int dpcm_do_trigger(struct snd_soc_dpcm *dpcm, | |
2005 | struct snd_pcm_substream *substream, int cmd) | |
2006 | { | |
2007 | int ret; | |
2008 | ||
103d84a3 | 2009 | dev_dbg(dpcm->be->dev, "ASoC: trigger BE %s cmd %d\n", |
94d215cc | 2010 | dpcm->be->dai_link->name, cmd); |
01d7584c LG |
2011 | |
2012 | ret = soc_pcm_trigger(substream, cmd); | |
2013 | if (ret < 0) | |
103d84a3 | 2014 | dev_err(dpcm->be->dev,"ASoC: trigger BE failed %d\n", ret); |
01d7584c LG |
2015 | |
2016 | return ret; | |
2017 | } | |
2018 | ||
23607025 | 2019 | int dpcm_be_dai_trigger(struct snd_soc_pcm_runtime *fe, int stream, |
45c0a188 | 2020 | int cmd) |
01d7584c LG |
2021 | { |
2022 | struct snd_soc_dpcm *dpcm; | |
2023 | int ret = 0; | |
2024 | ||
2025 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { | |
2026 | ||
2027 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
2028 | struct snd_pcm_substream *be_substream = | |
2029 | snd_soc_dpcm_get_substream(be, stream); | |
2030 | ||
2031 | /* is this op for this BE ? */ | |
2032 | if (!snd_soc_dpcm_be_can_update(fe, be, stream)) | |
2033 | continue; | |
2034 | ||
2035 | switch (cmd) { | |
2036 | case SNDRV_PCM_TRIGGER_START: | |
2037 | if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_PREPARE) && | |
2038 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_STOP)) | |
2039 | continue; | |
2040 | ||
2041 | ret = dpcm_do_trigger(dpcm, be_substream, cmd); | |
2042 | if (ret) | |
2043 | return ret; | |
2044 | ||
2045 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_START; | |
2046 | break; | |
2047 | case SNDRV_PCM_TRIGGER_RESUME: | |
2048 | if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_SUSPEND)) | |
2049 | continue; | |
2050 | ||
2051 | ret = dpcm_do_trigger(dpcm, be_substream, cmd); | |
2052 | if (ret) | |
2053 | return ret; | |
2054 | ||
2055 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_START; | |
2056 | break; | |
2057 | case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: | |
2058 | if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_PAUSED)) | |
2059 | continue; | |
2060 | ||
2061 | ret = dpcm_do_trigger(dpcm, be_substream, cmd); | |
2062 | if (ret) | |
2063 | return ret; | |
2064 | ||
2065 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_START; | |
2066 | break; | |
2067 | case SNDRV_PCM_TRIGGER_STOP: | |
2068 | if (be->dpcm[stream].state != SND_SOC_DPCM_STATE_START) | |
2069 | continue; | |
2070 | ||
2071 | if (!snd_soc_dpcm_can_be_free_stop(fe, be, stream)) | |
2072 | continue; | |
2073 | ||
2074 | ret = dpcm_do_trigger(dpcm, be_substream, cmd); | |
2075 | if (ret) | |
2076 | return ret; | |
2077 | ||
2078 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_STOP; | |
2079 | break; | |
2080 | case SNDRV_PCM_TRIGGER_SUSPEND: | |
868a6ca8 | 2081 | if (be->dpcm[stream].state != SND_SOC_DPCM_STATE_START) |
01d7584c LG |
2082 | continue; |
2083 | ||
2084 | if (!snd_soc_dpcm_can_be_free_stop(fe, be, stream)) | |
2085 | continue; | |
2086 | ||
2087 | ret = dpcm_do_trigger(dpcm, be_substream, cmd); | |
2088 | if (ret) | |
2089 | return ret; | |
2090 | ||
2091 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_SUSPEND; | |
2092 | break; | |
2093 | case SNDRV_PCM_TRIGGER_PAUSE_PUSH: | |
2094 | if (be->dpcm[stream].state != SND_SOC_DPCM_STATE_START) | |
2095 | continue; | |
2096 | ||
2097 | if (!snd_soc_dpcm_can_be_free_stop(fe, be, stream)) | |
2098 | continue; | |
2099 | ||
2100 | ret = dpcm_do_trigger(dpcm, be_substream, cmd); | |
2101 | if (ret) | |
2102 | return ret; | |
2103 | ||
2104 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_PAUSED; | |
2105 | break; | |
2106 | } | |
2107 | } | |
2108 | ||
2109 | return ret; | |
2110 | } | |
2111 | EXPORT_SYMBOL_GPL(dpcm_be_dai_trigger); | |
2112 | ||
ea9d0d77 | 2113 | static int dpcm_fe_dai_do_trigger(struct snd_pcm_substream *substream, int cmd) |
01d7584c LG |
2114 | { |
2115 | struct snd_soc_pcm_runtime *fe = substream->private_data; | |
2116 | int stream = substream->stream, ret; | |
2117 | enum snd_soc_dpcm_trigger trigger = fe->dai_link->trigger[stream]; | |
2118 | ||
2119 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_FE; | |
2120 | ||
2121 | switch (trigger) { | |
2122 | case SND_SOC_DPCM_TRIGGER_PRE: | |
2123 | /* call trigger on the frontend before the backend. */ | |
2124 | ||
103d84a3 | 2125 | dev_dbg(fe->dev, "ASoC: pre trigger FE %s cmd %d\n", |
01d7584c LG |
2126 | fe->dai_link->name, cmd); |
2127 | ||
2128 | ret = soc_pcm_trigger(substream, cmd); | |
2129 | if (ret < 0) { | |
103d84a3 | 2130 | dev_err(fe->dev,"ASoC: trigger FE failed %d\n", ret); |
01d7584c LG |
2131 | goto out; |
2132 | } | |
2133 | ||
2134 | ret = dpcm_be_dai_trigger(fe, substream->stream, cmd); | |
2135 | break; | |
2136 | case SND_SOC_DPCM_TRIGGER_POST: | |
2137 | /* call trigger on the frontend after the backend. */ | |
2138 | ||
2139 | ret = dpcm_be_dai_trigger(fe, substream->stream, cmd); | |
2140 | if (ret < 0) { | |
103d84a3 | 2141 | dev_err(fe->dev,"ASoC: trigger FE failed %d\n", ret); |
01d7584c LG |
2142 | goto out; |
2143 | } | |
2144 | ||
103d84a3 | 2145 | dev_dbg(fe->dev, "ASoC: post trigger FE %s cmd %d\n", |
01d7584c LG |
2146 | fe->dai_link->name, cmd); |
2147 | ||
2148 | ret = soc_pcm_trigger(substream, cmd); | |
2149 | break; | |
07bf84aa LG |
2150 | case SND_SOC_DPCM_TRIGGER_BESPOKE: |
2151 | /* bespoke trigger() - handles both FE and BEs */ | |
2152 | ||
103d84a3 | 2153 | dev_dbg(fe->dev, "ASoC: bespoke trigger FE %s cmd %d\n", |
07bf84aa LG |
2154 | fe->dai_link->name, cmd); |
2155 | ||
2156 | ret = soc_pcm_bespoke_trigger(substream, cmd); | |
2157 | if (ret < 0) { | |
103d84a3 | 2158 | dev_err(fe->dev,"ASoC: trigger FE failed %d\n", ret); |
07bf84aa LG |
2159 | goto out; |
2160 | } | |
2161 | break; | |
01d7584c | 2162 | default: |
103d84a3 | 2163 | dev_err(fe->dev, "ASoC: invalid trigger cmd %d for %s\n", cmd, |
01d7584c LG |
2164 | fe->dai_link->name); |
2165 | ret = -EINVAL; | |
2166 | goto out; | |
2167 | } | |
2168 | ||
2169 | switch (cmd) { | |
2170 | case SNDRV_PCM_TRIGGER_START: | |
2171 | case SNDRV_PCM_TRIGGER_RESUME: | |
2172 | case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: | |
2173 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_START; | |
2174 | break; | |
2175 | case SNDRV_PCM_TRIGGER_STOP: | |
2176 | case SNDRV_PCM_TRIGGER_SUSPEND: | |
01d7584c LG |
2177 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_STOP; |
2178 | break; | |
9f169b9f PL |
2179 | case SNDRV_PCM_TRIGGER_PAUSE_PUSH: |
2180 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_PAUSED; | |
2181 | break; | |
01d7584c LG |
2182 | } |
2183 | ||
2184 | out: | |
2185 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO; | |
2186 | return ret; | |
2187 | } | |
2188 | ||
ea9d0d77 TI |
2189 | static int dpcm_fe_dai_trigger(struct snd_pcm_substream *substream, int cmd) |
2190 | { | |
2191 | struct snd_soc_pcm_runtime *fe = substream->private_data; | |
2192 | int stream = substream->stream; | |
2193 | ||
2194 | /* if FE's runtime_update is already set, we're in race; | |
2195 | * process this trigger later at exit | |
2196 | */ | |
2197 | if (fe->dpcm[stream].runtime_update != SND_SOC_DPCM_UPDATE_NO) { | |
2198 | fe->dpcm[stream].trigger_pending = cmd + 1; | |
2199 | return 0; /* delayed, assuming it's successful */ | |
2200 | } | |
2201 | ||
2202 | /* we're alone, let's trigger */ | |
2203 | return dpcm_fe_dai_do_trigger(substream, cmd); | |
2204 | } | |
2205 | ||
23607025 | 2206 | int dpcm_be_dai_prepare(struct snd_soc_pcm_runtime *fe, int stream) |
01d7584c LG |
2207 | { |
2208 | struct snd_soc_dpcm *dpcm; | |
2209 | int ret = 0; | |
2210 | ||
2211 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { | |
2212 | ||
2213 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
2214 | struct snd_pcm_substream *be_substream = | |
2215 | snd_soc_dpcm_get_substream(be, stream); | |
2216 | ||
2217 | /* is this op for this BE ? */ | |
2218 | if (!snd_soc_dpcm_be_can_update(fe, be, stream)) | |
2219 | continue; | |
2220 | ||
2221 | if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_PARAMS) && | |
95f444dc KC |
2222 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_STOP) && |
2223 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_SUSPEND)) | |
01d7584c LG |
2224 | continue; |
2225 | ||
103d84a3 | 2226 | dev_dbg(be->dev, "ASoC: prepare BE %s\n", |
94d215cc | 2227 | be->dai_link->name); |
01d7584c LG |
2228 | |
2229 | ret = soc_pcm_prepare(be_substream); | |
2230 | if (ret < 0) { | |
103d84a3 | 2231 | dev_err(be->dev, "ASoC: backend prepare failed %d\n", |
01d7584c LG |
2232 | ret); |
2233 | break; | |
2234 | } | |
2235 | ||
2236 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_PREPARE; | |
2237 | } | |
2238 | return ret; | |
2239 | } | |
2240 | ||
45c0a188 | 2241 | static int dpcm_fe_dai_prepare(struct snd_pcm_substream *substream) |
01d7584c LG |
2242 | { |
2243 | struct snd_soc_pcm_runtime *fe = substream->private_data; | |
2244 | int stream = substream->stream, ret = 0; | |
2245 | ||
2246 | mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME); | |
2247 | ||
103d84a3 | 2248 | dev_dbg(fe->dev, "ASoC: prepare FE %s\n", fe->dai_link->name); |
01d7584c | 2249 | |
ea9d0d77 | 2250 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_FE); |
01d7584c LG |
2251 | |
2252 | /* there is no point preparing this FE if there are no BEs */ | |
2253 | if (list_empty(&fe->dpcm[stream].be_clients)) { | |
103d84a3 | 2254 | dev_err(fe->dev, "ASoC: no backend DAIs enabled for %s\n", |
01d7584c LG |
2255 | fe->dai_link->name); |
2256 | ret = -EINVAL; | |
2257 | goto out; | |
2258 | } | |
2259 | ||
2260 | ret = dpcm_be_dai_prepare(fe, substream->stream); | |
2261 | if (ret < 0) | |
2262 | goto out; | |
2263 | ||
2264 | /* call prepare on the frontend */ | |
2265 | ret = soc_pcm_prepare(substream); | |
2266 | if (ret < 0) { | |
103d84a3 | 2267 | dev_err(fe->dev,"ASoC: prepare FE %s failed\n", |
01d7584c LG |
2268 | fe->dai_link->name); |
2269 | goto out; | |
2270 | } | |
2271 | ||
2272 | /* run the stream event for each BE */ | |
2273 | dpcm_dapm_stream_event(fe, stream, SND_SOC_DAPM_STREAM_START); | |
2274 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_PREPARE; | |
2275 | ||
2276 | out: | |
ea9d0d77 | 2277 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_NO); |
01d7584c LG |
2278 | mutex_unlock(&fe->card->mutex); |
2279 | ||
2280 | return ret; | |
2281 | } | |
2282 | ||
be3f3f2c LG |
2283 | static int soc_pcm_ioctl(struct snd_pcm_substream *substream, |
2284 | unsigned int cmd, void *arg) | |
2285 | { | |
2286 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
2287 | struct snd_soc_platform *platform = rtd->platform; | |
2288 | ||
c5914b0a | 2289 | if (platform->driver->ops && platform->driver->ops->ioctl) |
be3f3f2c LG |
2290 | return platform->driver->ops->ioctl(substream, cmd, arg); |
2291 | return snd_pcm_lib_ioctl(substream, cmd, arg); | |
2292 | } | |
2293 | ||
618dae11 LG |
2294 | static int dpcm_run_update_shutdown(struct snd_soc_pcm_runtime *fe, int stream) |
2295 | { | |
07bf84aa LG |
2296 | struct snd_pcm_substream *substream = |
2297 | snd_soc_dpcm_get_substream(fe, stream); | |
2298 | enum snd_soc_dpcm_trigger trigger = fe->dai_link->trigger[stream]; | |
618dae11 LG |
2299 | int err; |
2300 | ||
103d84a3 | 2301 | dev_dbg(fe->dev, "ASoC: runtime %s close on FE %s\n", |
618dae11 LG |
2302 | stream ? "capture" : "playback", fe->dai_link->name); |
2303 | ||
07bf84aa LG |
2304 | if (trigger == SND_SOC_DPCM_TRIGGER_BESPOKE) { |
2305 | /* call bespoke trigger - FE takes care of all BE triggers */ | |
103d84a3 | 2306 | dev_dbg(fe->dev, "ASoC: bespoke trigger FE %s cmd stop\n", |
07bf84aa LG |
2307 | fe->dai_link->name); |
2308 | ||
2309 | err = soc_pcm_bespoke_trigger(substream, SNDRV_PCM_TRIGGER_STOP); | |
2310 | if (err < 0) | |
103d84a3 | 2311 | dev_err(fe->dev,"ASoC: trigger FE failed %d\n", err); |
07bf84aa | 2312 | } else { |
103d84a3 | 2313 | dev_dbg(fe->dev, "ASoC: trigger FE %s cmd stop\n", |
07bf84aa LG |
2314 | fe->dai_link->name); |
2315 | ||
2316 | err = dpcm_be_dai_trigger(fe, stream, SNDRV_PCM_TRIGGER_STOP); | |
2317 | if (err < 0) | |
103d84a3 | 2318 | dev_err(fe->dev,"ASoC: trigger FE failed %d\n", err); |
07bf84aa | 2319 | } |
618dae11 LG |
2320 | |
2321 | err = dpcm_be_dai_hw_free(fe, stream); | |
2322 | if (err < 0) | |
103d84a3 | 2323 | dev_err(fe->dev,"ASoC: hw_free FE failed %d\n", err); |
618dae11 LG |
2324 | |
2325 | err = dpcm_be_dai_shutdown(fe, stream); | |
2326 | if (err < 0) | |
103d84a3 | 2327 | dev_err(fe->dev,"ASoC: shutdown FE failed %d\n", err); |
618dae11 LG |
2328 | |
2329 | /* run the stream event for each BE */ | |
2330 | dpcm_dapm_stream_event(fe, stream, SND_SOC_DAPM_STREAM_NOP); | |
2331 | ||
2332 | return 0; | |
2333 | } | |
2334 | ||
2335 | static int dpcm_run_update_startup(struct snd_soc_pcm_runtime *fe, int stream) | |
2336 | { | |
07bf84aa LG |
2337 | struct snd_pcm_substream *substream = |
2338 | snd_soc_dpcm_get_substream(fe, stream); | |
618dae11 | 2339 | struct snd_soc_dpcm *dpcm; |
07bf84aa | 2340 | enum snd_soc_dpcm_trigger trigger = fe->dai_link->trigger[stream]; |
618dae11 LG |
2341 | int ret; |
2342 | ||
103d84a3 | 2343 | dev_dbg(fe->dev, "ASoC: runtime %s open on FE %s\n", |
618dae11 LG |
2344 | stream ? "capture" : "playback", fe->dai_link->name); |
2345 | ||
2346 | /* Only start the BE if the FE is ready */ | |
2347 | if (fe->dpcm[stream].state == SND_SOC_DPCM_STATE_HW_FREE || | |
2348 | fe->dpcm[stream].state == SND_SOC_DPCM_STATE_CLOSE) | |
2349 | return -EINVAL; | |
2350 | ||
2351 | /* startup must always be called for new BEs */ | |
2352 | ret = dpcm_be_dai_startup(fe, stream); | |
fffc0ca2 | 2353 | if (ret < 0) |
618dae11 | 2354 | goto disconnect; |
618dae11 LG |
2355 | |
2356 | /* keep going if FE state is > open */ | |
2357 | if (fe->dpcm[stream].state == SND_SOC_DPCM_STATE_OPEN) | |
2358 | return 0; | |
01d7584c | 2359 | |
618dae11 | 2360 | ret = dpcm_be_dai_hw_params(fe, stream); |
fffc0ca2 | 2361 | if (ret < 0) |
618dae11 | 2362 | goto close; |
618dae11 LG |
2363 | |
2364 | /* keep going if FE state is > hw_params */ | |
2365 | if (fe->dpcm[stream].state == SND_SOC_DPCM_STATE_HW_PARAMS) | |
2366 | return 0; | |
2367 | ||
2368 | ||
2369 | ret = dpcm_be_dai_prepare(fe, stream); | |
fffc0ca2 | 2370 | if (ret < 0) |
618dae11 | 2371 | goto hw_free; |
618dae11 LG |
2372 | |
2373 | /* run the stream event for each BE */ | |
2374 | dpcm_dapm_stream_event(fe, stream, SND_SOC_DAPM_STREAM_NOP); | |
2375 | ||
2376 | /* keep going if FE state is > prepare */ | |
2377 | if (fe->dpcm[stream].state == SND_SOC_DPCM_STATE_PREPARE || | |
2378 | fe->dpcm[stream].state == SND_SOC_DPCM_STATE_STOP) | |
2379 | return 0; | |
2380 | ||
07bf84aa LG |
2381 | if (trigger == SND_SOC_DPCM_TRIGGER_BESPOKE) { |
2382 | /* call trigger on the frontend - FE takes care of all BE triggers */ | |
103d84a3 | 2383 | dev_dbg(fe->dev, "ASoC: bespoke trigger FE %s cmd start\n", |
07bf84aa | 2384 | fe->dai_link->name); |
618dae11 | 2385 | |
07bf84aa LG |
2386 | ret = soc_pcm_bespoke_trigger(substream, SNDRV_PCM_TRIGGER_START); |
2387 | if (ret < 0) { | |
103d84a3 | 2388 | dev_err(fe->dev,"ASoC: bespoke trigger FE failed %d\n", ret); |
07bf84aa LG |
2389 | goto hw_free; |
2390 | } | |
2391 | } else { | |
103d84a3 | 2392 | dev_dbg(fe->dev, "ASoC: trigger FE %s cmd start\n", |
07bf84aa LG |
2393 | fe->dai_link->name); |
2394 | ||
2395 | ret = dpcm_be_dai_trigger(fe, stream, | |
2396 | SNDRV_PCM_TRIGGER_START); | |
2397 | if (ret < 0) { | |
103d84a3 | 2398 | dev_err(fe->dev,"ASoC: trigger FE failed %d\n", ret); |
07bf84aa LG |
2399 | goto hw_free; |
2400 | } | |
618dae11 LG |
2401 | } |
2402 | ||
2403 | return 0; | |
2404 | ||
2405 | hw_free: | |
2406 | dpcm_be_dai_hw_free(fe, stream); | |
2407 | close: | |
2408 | dpcm_be_dai_shutdown(fe, stream); | |
2409 | disconnect: | |
2410 | /* disconnect any non started BEs */ | |
2411 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { | |
2412 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
2413 | if (be->dpcm[stream].state != SND_SOC_DPCM_STATE_START) | |
2414 | dpcm->state = SND_SOC_DPCM_LINK_STATE_FREE; | |
2415 | } | |
2416 | ||
2417 | return ret; | |
2418 | } | |
2419 | ||
2420 | static int dpcm_run_new_update(struct snd_soc_pcm_runtime *fe, int stream) | |
2421 | { | |
2422 | int ret; | |
2423 | ||
ea9d0d77 | 2424 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_BE); |
618dae11 LG |
2425 | ret = dpcm_run_update_startup(fe, stream); |
2426 | if (ret < 0) | |
103d84a3 | 2427 | dev_err(fe->dev, "ASoC: failed to startup some BEs\n"); |
ea9d0d77 | 2428 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_NO); |
618dae11 LG |
2429 | |
2430 | return ret; | |
2431 | } | |
2432 | ||
2433 | static int dpcm_run_old_update(struct snd_soc_pcm_runtime *fe, int stream) | |
2434 | { | |
2435 | int ret; | |
2436 | ||
ea9d0d77 | 2437 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_BE); |
618dae11 LG |
2438 | ret = dpcm_run_update_shutdown(fe, stream); |
2439 | if (ret < 0) | |
103d84a3 | 2440 | dev_err(fe->dev, "ASoC: failed to shutdown some BEs\n"); |
ea9d0d77 | 2441 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_NO); |
618dae11 LG |
2442 | |
2443 | return ret; | |
2444 | } | |
2445 | ||
2446 | /* Called by DAPM mixer/mux changes to update audio routing between PCMs and | |
2447 | * any DAI links. | |
2448 | */ | |
c3f48ae6 | 2449 | int soc_dpcm_runtime_update(struct snd_soc_card *card) |
618dae11 | 2450 | { |
1a497983 ML |
2451 | struct snd_soc_pcm_runtime *fe; |
2452 | int old, new, paths; | |
618dae11 | 2453 | |
618dae11 | 2454 | mutex_lock_nested(&card->mutex, SND_SOC_CARD_CLASS_RUNTIME); |
1a497983 | 2455 | list_for_each_entry(fe, &card->rtd_list, list) { |
618dae11 | 2456 | struct snd_soc_dapm_widget_list *list; |
618dae11 LG |
2457 | |
2458 | /* make sure link is FE */ | |
2459 | if (!fe->dai_link->dynamic) | |
2460 | continue; | |
2461 | ||
2462 | /* only check active links */ | |
2463 | if (!fe->cpu_dai->active) | |
2464 | continue; | |
2465 | ||
2466 | /* DAPM sync will call this to update DSP paths */ | |
103d84a3 | 2467 | dev_dbg(fe->dev, "ASoC: DPCM runtime update for FE %s\n", |
618dae11 LG |
2468 | fe->dai_link->name); |
2469 | ||
2470 | /* skip if FE doesn't have playback capability */ | |
075207d2 QZ |
2471 | if (!fe->cpu_dai->driver->playback.channels_min |
2472 | || !fe->codec_dai->driver->playback.channels_min) | |
2473 | goto capture; | |
2474 | ||
2475 | /* skip if FE isn't currently playing */ | |
2476 | if (!fe->cpu_dai->playback_active | |
2477 | || !fe->codec_dai->playback_active) | |
618dae11 LG |
2478 | goto capture; |
2479 | ||
2480 | paths = dpcm_path_get(fe, SNDRV_PCM_STREAM_PLAYBACK, &list); | |
2481 | if (paths < 0) { | |
103d84a3 | 2482 | dev_warn(fe->dev, "ASoC: %s no valid %s path\n", |
618dae11 LG |
2483 | fe->dai_link->name, "playback"); |
2484 | mutex_unlock(&card->mutex); | |
2485 | return paths; | |
2486 | } | |
2487 | ||
2488 | /* update any new playback paths */ | |
2489 | new = dpcm_process_paths(fe, SNDRV_PCM_STREAM_PLAYBACK, &list, 1); | |
2490 | if (new) { | |
2491 | dpcm_run_new_update(fe, SNDRV_PCM_STREAM_PLAYBACK); | |
2492 | dpcm_clear_pending_state(fe, SNDRV_PCM_STREAM_PLAYBACK); | |
2493 | dpcm_be_disconnect(fe, SNDRV_PCM_STREAM_PLAYBACK); | |
2494 | } | |
2495 | ||
2496 | /* update any old playback paths */ | |
2497 | old = dpcm_process_paths(fe, SNDRV_PCM_STREAM_PLAYBACK, &list, 0); | |
2498 | if (old) { | |
2499 | dpcm_run_old_update(fe, SNDRV_PCM_STREAM_PLAYBACK); | |
2500 | dpcm_clear_pending_state(fe, SNDRV_PCM_STREAM_PLAYBACK); | |
2501 | dpcm_be_disconnect(fe, SNDRV_PCM_STREAM_PLAYBACK); | |
2502 | } | |
2503 | ||
7ed9de76 | 2504 | dpcm_path_put(&list); |
618dae11 LG |
2505 | capture: |
2506 | /* skip if FE doesn't have capture capability */ | |
075207d2 QZ |
2507 | if (!fe->cpu_dai->driver->capture.channels_min |
2508 | || !fe->codec_dai->driver->capture.channels_min) | |
2509 | continue; | |
2510 | ||
2511 | /* skip if FE isn't currently capturing */ | |
2512 | if (!fe->cpu_dai->capture_active | |
2513 | || !fe->codec_dai->capture_active) | |
618dae11 LG |
2514 | continue; |
2515 | ||
2516 | paths = dpcm_path_get(fe, SNDRV_PCM_STREAM_CAPTURE, &list); | |
2517 | if (paths < 0) { | |
103d84a3 | 2518 | dev_warn(fe->dev, "ASoC: %s no valid %s path\n", |
618dae11 LG |
2519 | fe->dai_link->name, "capture"); |
2520 | mutex_unlock(&card->mutex); | |
2521 | return paths; | |
2522 | } | |
2523 | ||
2524 | /* update any new capture paths */ | |
2525 | new = dpcm_process_paths(fe, SNDRV_PCM_STREAM_CAPTURE, &list, 1); | |
2526 | if (new) { | |
2527 | dpcm_run_new_update(fe, SNDRV_PCM_STREAM_CAPTURE); | |
2528 | dpcm_clear_pending_state(fe, SNDRV_PCM_STREAM_CAPTURE); | |
2529 | dpcm_be_disconnect(fe, SNDRV_PCM_STREAM_CAPTURE); | |
2530 | } | |
2531 | ||
2532 | /* update any old capture paths */ | |
2533 | old = dpcm_process_paths(fe, SNDRV_PCM_STREAM_CAPTURE, &list, 0); | |
2534 | if (old) { | |
2535 | dpcm_run_old_update(fe, SNDRV_PCM_STREAM_CAPTURE); | |
2536 | dpcm_clear_pending_state(fe, SNDRV_PCM_STREAM_CAPTURE); | |
2537 | dpcm_be_disconnect(fe, SNDRV_PCM_STREAM_CAPTURE); | |
2538 | } | |
2539 | ||
2540 | dpcm_path_put(&list); | |
2541 | } | |
2542 | ||
2543 | mutex_unlock(&card->mutex); | |
2544 | return 0; | |
2545 | } | |
01d7584c LG |
2546 | int soc_dpcm_be_digital_mute(struct snd_soc_pcm_runtime *fe, int mute) |
2547 | { | |
2548 | struct snd_soc_dpcm *dpcm; | |
2549 | struct list_head *clients = | |
2550 | &fe->dpcm[SNDRV_PCM_STREAM_PLAYBACK].be_clients; | |
2551 | ||
2552 | list_for_each_entry(dpcm, clients, list_be) { | |
2553 | ||
2554 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
2e5894d7 | 2555 | int i; |
01d7584c LG |
2556 | |
2557 | if (be->dai_link->ignore_suspend) | |
2558 | continue; | |
2559 | ||
2e5894d7 BC |
2560 | for (i = 0; i < be->num_codecs; i++) { |
2561 | struct snd_soc_dai *dai = be->codec_dais[i]; | |
2562 | struct snd_soc_dai_driver *drv = dai->driver; | |
2563 | ||
2564 | dev_dbg(be->dev, "ASoC: BE digital mute %s\n", | |
2565 | be->dai_link->name); | |
01d7584c | 2566 | |
2e5894d7 BC |
2567 | if (drv->ops && drv->ops->digital_mute && |
2568 | dai->playback_active) | |
2569 | drv->ops->digital_mute(dai, mute); | |
2570 | } | |
01d7584c LG |
2571 | } |
2572 | ||
2573 | return 0; | |
2574 | } | |
2575 | ||
45c0a188 | 2576 | static int dpcm_fe_dai_open(struct snd_pcm_substream *fe_substream) |
01d7584c LG |
2577 | { |
2578 | struct snd_soc_pcm_runtime *fe = fe_substream->private_data; | |
2579 | struct snd_soc_dpcm *dpcm; | |
2580 | struct snd_soc_dapm_widget_list *list; | |
2581 | int ret; | |
2582 | int stream = fe_substream->stream; | |
2583 | ||
2584 | mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME); | |
2585 | fe->dpcm[stream].runtime = fe_substream->runtime; | |
2586 | ||
8f70e515 QZ |
2587 | ret = dpcm_path_get(fe, stream, &list); |
2588 | if (ret < 0) { | |
2589 | mutex_unlock(&fe->card->mutex); | |
2590 | return ret; | |
2591 | } else if (ret == 0) { | |
103d84a3 | 2592 | dev_dbg(fe->dev, "ASoC: %s no valid %s route\n", |
01d7584c | 2593 | fe->dai_link->name, stream ? "capture" : "playback"); |
01d7584c LG |
2594 | } |
2595 | ||
2596 | /* calculate valid and active FE <-> BE dpcms */ | |
2597 | dpcm_process_paths(fe, stream, &list, 1); | |
2598 | ||
2599 | ret = dpcm_fe_dai_startup(fe_substream); | |
2600 | if (ret < 0) { | |
2601 | /* clean up all links */ | |
2602 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) | |
2603 | dpcm->state = SND_SOC_DPCM_LINK_STATE_FREE; | |
2604 | ||
2605 | dpcm_be_disconnect(fe, stream); | |
2606 | fe->dpcm[stream].runtime = NULL; | |
2607 | } | |
2608 | ||
2609 | dpcm_clear_pending_state(fe, stream); | |
2610 | dpcm_path_put(&list); | |
2611 | mutex_unlock(&fe->card->mutex); | |
2612 | return ret; | |
2613 | } | |
2614 | ||
45c0a188 | 2615 | static int dpcm_fe_dai_close(struct snd_pcm_substream *fe_substream) |
01d7584c LG |
2616 | { |
2617 | struct snd_soc_pcm_runtime *fe = fe_substream->private_data; | |
2618 | struct snd_soc_dpcm *dpcm; | |
2619 | int stream = fe_substream->stream, ret; | |
2620 | ||
2621 | mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME); | |
2622 | ret = dpcm_fe_dai_shutdown(fe_substream); | |
2623 | ||
2624 | /* mark FE's links ready to prune */ | |
2625 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) | |
2626 | dpcm->state = SND_SOC_DPCM_LINK_STATE_FREE; | |
2627 | ||
2628 | dpcm_be_disconnect(fe, stream); | |
2629 | ||
2630 | fe->dpcm[stream].runtime = NULL; | |
2631 | mutex_unlock(&fe->card->mutex); | |
2632 | return ret; | |
2633 | } | |
2634 | ||
ddee627c LG |
2635 | /* create a new pcm */ |
2636 | int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num) | |
2637 | { | |
ddee627c | 2638 | struct snd_soc_platform *platform = rtd->platform; |
2e5894d7 | 2639 | struct snd_soc_dai *codec_dai; |
ddee627c LG |
2640 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
2641 | struct snd_pcm *pcm; | |
2642 | char new_name[64]; | |
2643 | int ret = 0, playback = 0, capture = 0; | |
2e5894d7 | 2644 | int i; |
ddee627c | 2645 | |
01d7584c | 2646 | if (rtd->dai_link->dynamic || rtd->dai_link->no_pcm) { |
1e9de42f LG |
2647 | playback = rtd->dai_link->dpcm_playback; |
2648 | capture = rtd->dai_link->dpcm_capture; | |
01d7584c | 2649 | } else { |
2e5894d7 BC |
2650 | for (i = 0; i < rtd->num_codecs; i++) { |
2651 | codec_dai = rtd->codec_dais[i]; | |
2652 | if (codec_dai->driver->playback.channels_min) | |
2653 | playback = 1; | |
2654 | if (codec_dai->driver->capture.channels_min) | |
2655 | capture = 1; | |
2656 | } | |
2657 | ||
2658 | capture = capture && cpu_dai->driver->capture.channels_min; | |
2659 | playback = playback && cpu_dai->driver->playback.channels_min; | |
01d7584c LG |
2660 | } |
2661 | ||
d6bead02 FE |
2662 | if (rtd->dai_link->playback_only) { |
2663 | playback = 1; | |
2664 | capture = 0; | |
2665 | } | |
2666 | ||
2667 | if (rtd->dai_link->capture_only) { | |
2668 | playback = 0; | |
2669 | capture = 1; | |
2670 | } | |
2671 | ||
01d7584c LG |
2672 | /* create the PCM */ |
2673 | if (rtd->dai_link->no_pcm) { | |
2674 | snprintf(new_name, sizeof(new_name), "(%s)", | |
2675 | rtd->dai_link->stream_name); | |
2676 | ||
2677 | ret = snd_pcm_new_internal(rtd->card->snd_card, new_name, num, | |
2678 | playback, capture, &pcm); | |
2679 | } else { | |
2680 | if (rtd->dai_link->dynamic) | |
2681 | snprintf(new_name, sizeof(new_name), "%s (*)", | |
2682 | rtd->dai_link->stream_name); | |
2683 | else | |
2684 | snprintf(new_name, sizeof(new_name), "%s %s-%d", | |
2e5894d7 BC |
2685 | rtd->dai_link->stream_name, |
2686 | (rtd->num_codecs > 1) ? | |
2687 | "multicodec" : rtd->codec_dai->name, num); | |
01d7584c LG |
2688 | |
2689 | ret = snd_pcm_new(rtd->card->snd_card, new_name, num, playback, | |
2690 | capture, &pcm); | |
2691 | } | |
ddee627c | 2692 | if (ret < 0) { |
103d84a3 | 2693 | dev_err(rtd->card->dev, "ASoC: can't create pcm for %s\n", |
5cb9b748 | 2694 | rtd->dai_link->name); |
ddee627c LG |
2695 | return ret; |
2696 | } | |
103d84a3 | 2697 | dev_dbg(rtd->card->dev, "ASoC: registered pcm #%d %s\n",num, new_name); |
ddee627c LG |
2698 | |
2699 | /* DAPM dai link stream work */ | |
2700 | INIT_DELAYED_WORK(&rtd->delayed_work, close_delayed_work); | |
2701 | ||
48c7699f | 2702 | pcm->nonatomic = rtd->dai_link->nonatomic; |
ddee627c LG |
2703 | rtd->pcm = pcm; |
2704 | pcm->private_data = rtd; | |
01d7584c LG |
2705 | |
2706 | if (rtd->dai_link->no_pcm) { | |
2707 | if (playback) | |
2708 | pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream->private_data = rtd; | |
2709 | if (capture) | |
2710 | pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream->private_data = rtd; | |
2711 | goto out; | |
2712 | } | |
2713 | ||
2714 | /* ASoC PCM operations */ | |
2715 | if (rtd->dai_link->dynamic) { | |
2716 | rtd->ops.open = dpcm_fe_dai_open; | |
2717 | rtd->ops.hw_params = dpcm_fe_dai_hw_params; | |
2718 | rtd->ops.prepare = dpcm_fe_dai_prepare; | |
2719 | rtd->ops.trigger = dpcm_fe_dai_trigger; | |
2720 | rtd->ops.hw_free = dpcm_fe_dai_hw_free; | |
2721 | rtd->ops.close = dpcm_fe_dai_close; | |
2722 | rtd->ops.pointer = soc_pcm_pointer; | |
be3f3f2c | 2723 | rtd->ops.ioctl = soc_pcm_ioctl; |
01d7584c LG |
2724 | } else { |
2725 | rtd->ops.open = soc_pcm_open; | |
2726 | rtd->ops.hw_params = soc_pcm_hw_params; | |
2727 | rtd->ops.prepare = soc_pcm_prepare; | |
2728 | rtd->ops.trigger = soc_pcm_trigger; | |
2729 | rtd->ops.hw_free = soc_pcm_hw_free; | |
2730 | rtd->ops.close = soc_pcm_close; | |
2731 | rtd->ops.pointer = soc_pcm_pointer; | |
be3f3f2c | 2732 | rtd->ops.ioctl = soc_pcm_ioctl; |
01d7584c LG |
2733 | } |
2734 | ||
ddee627c | 2735 | if (platform->driver->ops) { |
01d7584c | 2736 | rtd->ops.ack = platform->driver->ops->ack; |
29d1a873 TI |
2737 | rtd->ops.copy_user = platform->driver->ops->copy_user; |
2738 | rtd->ops.copy_kernel = platform->driver->ops->copy_kernel; | |
2739 | rtd->ops.fill_silence = platform->driver->ops->fill_silence; | |
01d7584c LG |
2740 | rtd->ops.page = platform->driver->ops->page; |
2741 | rtd->ops.mmap = platform->driver->ops->mmap; | |
ddee627c LG |
2742 | } |
2743 | ||
2744 | if (playback) | |
01d7584c | 2745 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &rtd->ops); |
ddee627c LG |
2746 | |
2747 | if (capture) | |
01d7584c | 2748 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &rtd->ops); |
ddee627c | 2749 | |
c641e5b2 JH |
2750 | if (platform->driver->pcm_new) { |
2751 | ret = platform->driver->pcm_new(rtd); | |
2752 | if (ret < 0) { | |
2753 | dev_err(platform->dev, | |
2754 | "ASoC: pcm constructor failed: %d\n", | |
2755 | ret); | |
2756 | return ret; | |
ddee627c LG |
2757 | } |
2758 | } | |
c641e5b2 JH |
2759 | |
2760 | pcm->private_free = platform->driver->pcm_free; | |
01d7584c | 2761 | out: |
2e5894d7 BC |
2762 | dev_info(rtd->card->dev, "%s <-> %s mapping ok\n", |
2763 | (rtd->num_codecs > 1) ? "multicodec" : rtd->codec_dai->name, | |
2764 | cpu_dai->name); | |
ddee627c LG |
2765 | return ret; |
2766 | } | |
01d7584c LG |
2767 | |
2768 | /* is the current PCM operation for this FE ? */ | |
2769 | int snd_soc_dpcm_fe_can_update(struct snd_soc_pcm_runtime *fe, int stream) | |
2770 | { | |
2771 | if (fe->dpcm[stream].runtime_update == SND_SOC_DPCM_UPDATE_FE) | |
2772 | return 1; | |
2773 | return 0; | |
2774 | } | |
2775 | EXPORT_SYMBOL_GPL(snd_soc_dpcm_fe_can_update); | |
2776 | ||
2777 | /* is the current PCM operation for this BE ? */ | |
2778 | int snd_soc_dpcm_be_can_update(struct snd_soc_pcm_runtime *fe, | |
2779 | struct snd_soc_pcm_runtime *be, int stream) | |
2780 | { | |
2781 | if ((fe->dpcm[stream].runtime_update == SND_SOC_DPCM_UPDATE_FE) || | |
2782 | ((fe->dpcm[stream].runtime_update == SND_SOC_DPCM_UPDATE_BE) && | |
2783 | be->dpcm[stream].runtime_update)) | |
2784 | return 1; | |
2785 | return 0; | |
2786 | } | |
2787 | EXPORT_SYMBOL_GPL(snd_soc_dpcm_be_can_update); | |
2788 | ||
2789 | /* get the substream for this BE */ | |
2790 | struct snd_pcm_substream * | |
2791 | snd_soc_dpcm_get_substream(struct snd_soc_pcm_runtime *be, int stream) | |
2792 | { | |
2793 | return be->pcm->streams[stream].substream; | |
2794 | } | |
2795 | EXPORT_SYMBOL_GPL(snd_soc_dpcm_get_substream); | |
2796 | ||
2797 | /* get the BE runtime state */ | |
2798 | enum snd_soc_dpcm_state | |
2799 | snd_soc_dpcm_be_get_state(struct snd_soc_pcm_runtime *be, int stream) | |
2800 | { | |
2801 | return be->dpcm[stream].state; | |
2802 | } | |
2803 | EXPORT_SYMBOL_GPL(snd_soc_dpcm_be_get_state); | |
2804 | ||
2805 | /* set the BE runtime state */ | |
2806 | void snd_soc_dpcm_be_set_state(struct snd_soc_pcm_runtime *be, | |
2807 | int stream, enum snd_soc_dpcm_state state) | |
2808 | { | |
2809 | be->dpcm[stream].state = state; | |
2810 | } | |
2811 | EXPORT_SYMBOL_GPL(snd_soc_dpcm_be_set_state); | |
2812 | ||
2813 | /* | |
2814 | * We can only hw_free, stop, pause or suspend a BE DAI if any of it's FE | |
2815 | * are not running, paused or suspended for the specified stream direction. | |
2816 | */ | |
2817 | int snd_soc_dpcm_can_be_free_stop(struct snd_soc_pcm_runtime *fe, | |
2818 | struct snd_soc_pcm_runtime *be, int stream) | |
2819 | { | |
2820 | struct snd_soc_dpcm *dpcm; | |
2821 | int state; | |
2822 | ||
2823 | list_for_each_entry(dpcm, &be->dpcm[stream].fe_clients, list_fe) { | |
2824 | ||
2825 | if (dpcm->fe == fe) | |
2826 | continue; | |
2827 | ||
2828 | state = dpcm->fe->dpcm[stream].state; | |
2829 | if (state == SND_SOC_DPCM_STATE_START || | |
2830 | state == SND_SOC_DPCM_STATE_PAUSED || | |
2831 | state == SND_SOC_DPCM_STATE_SUSPEND) | |
2832 | return 0; | |
2833 | } | |
2834 | ||
2835 | /* it's safe to free/stop this BE DAI */ | |
2836 | return 1; | |
2837 | } | |
2838 | EXPORT_SYMBOL_GPL(snd_soc_dpcm_can_be_free_stop); | |
2839 | ||
2840 | /* | |
2841 | * We can only change hw params a BE DAI if any of it's FE are not prepared, | |
2842 | * running, paused or suspended for the specified stream direction. | |
2843 | */ | |
2844 | int snd_soc_dpcm_can_be_params(struct snd_soc_pcm_runtime *fe, | |
2845 | struct snd_soc_pcm_runtime *be, int stream) | |
2846 | { | |
2847 | struct snd_soc_dpcm *dpcm; | |
2848 | int state; | |
2849 | ||
2850 | list_for_each_entry(dpcm, &be->dpcm[stream].fe_clients, list_fe) { | |
2851 | ||
2852 | if (dpcm->fe == fe) | |
2853 | continue; | |
2854 | ||
2855 | state = dpcm->fe->dpcm[stream].state; | |
2856 | if (state == SND_SOC_DPCM_STATE_START || | |
2857 | state == SND_SOC_DPCM_STATE_PAUSED || | |
2858 | state == SND_SOC_DPCM_STATE_SUSPEND || | |
2859 | state == SND_SOC_DPCM_STATE_PREPARE) | |
2860 | return 0; | |
2861 | } | |
2862 | ||
2863 | /* it's safe to change hw_params */ | |
2864 | return 1; | |
2865 | } | |
2866 | EXPORT_SYMBOL_GPL(snd_soc_dpcm_can_be_params); | |
f86dcef8 LG |
2867 | |
2868 | #ifdef CONFIG_DEBUG_FS | |
85280141 | 2869 | static const char *dpcm_state_string(enum snd_soc_dpcm_state state) |
f86dcef8 LG |
2870 | { |
2871 | switch (state) { | |
2872 | case SND_SOC_DPCM_STATE_NEW: | |
2873 | return "new"; | |
2874 | case SND_SOC_DPCM_STATE_OPEN: | |
2875 | return "open"; | |
2876 | case SND_SOC_DPCM_STATE_HW_PARAMS: | |
2877 | return "hw_params"; | |
2878 | case SND_SOC_DPCM_STATE_PREPARE: | |
2879 | return "prepare"; | |
2880 | case SND_SOC_DPCM_STATE_START: | |
2881 | return "start"; | |
2882 | case SND_SOC_DPCM_STATE_STOP: | |
2883 | return "stop"; | |
2884 | case SND_SOC_DPCM_STATE_SUSPEND: | |
2885 | return "suspend"; | |
2886 | case SND_SOC_DPCM_STATE_PAUSED: | |
2887 | return "paused"; | |
2888 | case SND_SOC_DPCM_STATE_HW_FREE: | |
2889 | return "hw_free"; | |
2890 | case SND_SOC_DPCM_STATE_CLOSE: | |
2891 | return "close"; | |
2892 | } | |
2893 | ||
2894 | return "unknown"; | |
2895 | } | |
2896 | ||
f86dcef8 LG |
2897 | static ssize_t dpcm_show_state(struct snd_soc_pcm_runtime *fe, |
2898 | int stream, char *buf, size_t size) | |
2899 | { | |
2900 | struct snd_pcm_hw_params *params = &fe->dpcm[stream].hw_params; | |
2901 | struct snd_soc_dpcm *dpcm; | |
2902 | ssize_t offset = 0; | |
2903 | ||
2904 | /* FE state */ | |
2905 | offset += snprintf(buf + offset, size - offset, | |
2906 | "[%s - %s]\n", fe->dai_link->name, | |
2907 | stream ? "Capture" : "Playback"); | |
2908 | ||
2909 | offset += snprintf(buf + offset, size - offset, "State: %s\n", | |
2910 | dpcm_state_string(fe->dpcm[stream].state)); | |
2911 | ||
2912 | if ((fe->dpcm[stream].state >= SND_SOC_DPCM_STATE_HW_PARAMS) && | |
2913 | (fe->dpcm[stream].state <= SND_SOC_DPCM_STATE_STOP)) | |
2914 | offset += snprintf(buf + offset, size - offset, | |
2915 | "Hardware Params: " | |
2916 | "Format = %s, Channels = %d, Rate = %d\n", | |
2917 | snd_pcm_format_name(params_format(params)), | |
2918 | params_channels(params), | |
2919 | params_rate(params)); | |
2920 | ||
2921 | /* BEs state */ | |
2922 | offset += snprintf(buf + offset, size - offset, "Backends:\n"); | |
2923 | ||
2924 | if (list_empty(&fe->dpcm[stream].be_clients)) { | |
2925 | offset += snprintf(buf + offset, size - offset, | |
2926 | " No active DSP links\n"); | |
2927 | goto out; | |
2928 | } | |
2929 | ||
2930 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { | |
2931 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
2932 | params = &dpcm->hw_params; | |
2933 | ||
2934 | offset += snprintf(buf + offset, size - offset, | |
2935 | "- %s\n", be->dai_link->name); | |
2936 | ||
2937 | offset += snprintf(buf + offset, size - offset, | |
2938 | " State: %s\n", | |
2939 | dpcm_state_string(be->dpcm[stream].state)); | |
2940 | ||
2941 | if ((be->dpcm[stream].state >= SND_SOC_DPCM_STATE_HW_PARAMS) && | |
2942 | (be->dpcm[stream].state <= SND_SOC_DPCM_STATE_STOP)) | |
2943 | offset += snprintf(buf + offset, size - offset, | |
2944 | " Hardware Params: " | |
2945 | "Format = %s, Channels = %d, Rate = %d\n", | |
2946 | snd_pcm_format_name(params_format(params)), | |
2947 | params_channels(params), | |
2948 | params_rate(params)); | |
2949 | } | |
2950 | ||
2951 | out: | |
2952 | return offset; | |
2953 | } | |
2954 | ||
2955 | static ssize_t dpcm_state_read_file(struct file *file, char __user *user_buf, | |
2956 | size_t count, loff_t *ppos) | |
2957 | { | |
2958 | struct snd_soc_pcm_runtime *fe = file->private_data; | |
2959 | ssize_t out_count = PAGE_SIZE, offset = 0, ret = 0; | |
2960 | char *buf; | |
2961 | ||
2962 | buf = kmalloc(out_count, GFP_KERNEL); | |
2963 | if (!buf) | |
2964 | return -ENOMEM; | |
2965 | ||
2966 | if (fe->cpu_dai->driver->playback.channels_min) | |
2967 | offset += dpcm_show_state(fe, SNDRV_PCM_STREAM_PLAYBACK, | |
2968 | buf + offset, out_count - offset); | |
2969 | ||
2970 | if (fe->cpu_dai->driver->capture.channels_min) | |
2971 | offset += dpcm_show_state(fe, SNDRV_PCM_STREAM_CAPTURE, | |
2972 | buf + offset, out_count - offset); | |
2973 | ||
f57b8488 | 2974 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, offset); |
f86dcef8 | 2975 | |
f57b8488 LG |
2976 | kfree(buf); |
2977 | return ret; | |
f86dcef8 LG |
2978 | } |
2979 | ||
2980 | static const struct file_operations dpcm_state_fops = { | |
f57b8488 | 2981 | .open = simple_open, |
f86dcef8 LG |
2982 | .read = dpcm_state_read_file, |
2983 | .llseek = default_llseek, | |
2984 | }; | |
2985 | ||
2e55b90a | 2986 | void soc_dpcm_debugfs_add(struct snd_soc_pcm_runtime *rtd) |
f86dcef8 | 2987 | { |
b3bba9a1 | 2988 | if (!rtd->dai_link) |
2e55b90a | 2989 | return; |
b3bba9a1 | 2990 | |
6553bf06 LPC |
2991 | if (!rtd->card->debugfs_card_root) |
2992 | return; | |
b3bba9a1 | 2993 | |
f86dcef8 LG |
2994 | rtd->debugfs_dpcm_root = debugfs_create_dir(rtd->dai_link->name, |
2995 | rtd->card->debugfs_card_root); | |
2996 | if (!rtd->debugfs_dpcm_root) { | |
2997 | dev_dbg(rtd->dev, | |
2998 | "ASoC: Failed to create dpcm debugfs directory %s\n", | |
2999 | rtd->dai_link->name); | |
2e55b90a | 3000 | return; |
f86dcef8 LG |
3001 | } |
3002 | ||
f1e3f409 FE |
3003 | debugfs_create_file("state", 0444, rtd->debugfs_dpcm_root, |
3004 | rtd, &dpcm_state_fops); | |
f86dcef8 LG |
3005 | } |
3006 | #endif |