Commit | Line | Data |
---|---|---|
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 | { | |
fbb16563 KM |
136 | struct snd_soc_rtdcom_list *rtdcom; |
137 | struct snd_soc_component *component; | |
2e5894d7 BC |
138 | bool ignore = true; |
139 | ||
208a1589 LPC |
140 | if (!rtd->pmdown_time || rtd->dai_link->ignore_pmdown_time) |
141 | return true; | |
142 | ||
fbb16563 KM |
143 | for_each_rtdcom(rtd, rtdcom) { |
144 | component = rtdcom->component; | |
145 | ||
72c38184 | 146 | ignore &= !component->driver->use_pmdown_time; |
fbb16563 KM |
147 | } |
148 | ||
fbb16563 | 149 | return ignore; |
208a1589 LPC |
150 | } |
151 | ||
90996f43 LPC |
152 | /** |
153 | * snd_soc_set_runtime_hwparams - set the runtime hardware parameters | |
154 | * @substream: the pcm substream | |
155 | * @hw: the hardware parameters | |
156 | * | |
157 | * Sets the substream runtime hardware parameters. | |
158 | */ | |
159 | int snd_soc_set_runtime_hwparams(struct snd_pcm_substream *substream, | |
160 | const struct snd_pcm_hardware *hw) | |
161 | { | |
162 | struct snd_pcm_runtime *runtime = substream->runtime; | |
163 | runtime->hw.info = hw->info; | |
164 | runtime->hw.formats = hw->formats; | |
165 | runtime->hw.period_bytes_min = hw->period_bytes_min; | |
166 | runtime->hw.period_bytes_max = hw->period_bytes_max; | |
167 | runtime->hw.periods_min = hw->periods_min; | |
168 | runtime->hw.periods_max = hw->periods_max; | |
169 | runtime->hw.buffer_bytes_max = hw->buffer_bytes_max; | |
170 | runtime->hw.fifo_size = hw->fifo_size; | |
171 | return 0; | |
172 | } | |
173 | EXPORT_SYMBOL_GPL(snd_soc_set_runtime_hwparams); | |
174 | ||
01d7584c | 175 | /* DPCM stream event, send event to FE and all active BEs. */ |
23607025 | 176 | int dpcm_dapm_stream_event(struct snd_soc_pcm_runtime *fe, int dir, |
01d7584c LG |
177 | int event) |
178 | { | |
179 | struct snd_soc_dpcm *dpcm; | |
180 | ||
181 | list_for_each_entry(dpcm, &fe->dpcm[dir].be_clients, list_be) { | |
182 | ||
183 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
184 | ||
103d84a3 | 185 | dev_dbg(be->dev, "ASoC: BE %s event %d dir %d\n", |
01d7584c LG |
186 | be->dai_link->name, event, dir); |
187 | ||
b1cd2e34 BG |
188 | if ((event == SND_SOC_DAPM_STREAM_STOP) && |
189 | (be->dpcm[dir].users >= 1)) | |
190 | continue; | |
191 | ||
01d7584c LG |
192 | snd_soc_dapm_stream_event(be, dir, event); |
193 | } | |
194 | ||
195 | snd_soc_dapm_stream_event(fe, dir, event); | |
196 | ||
197 | return 0; | |
198 | } | |
199 | ||
17841020 DA |
200 | static int soc_pcm_apply_symmetry(struct snd_pcm_substream *substream, |
201 | struct snd_soc_dai *soc_dai) | |
ddee627c LG |
202 | { |
203 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
ddee627c LG |
204 | int ret; |
205 | ||
3635bf09 NC |
206 | if (soc_dai->rate && (soc_dai->driver->symmetric_rates || |
207 | rtd->dai_link->symmetric_rates)) { | |
208 | dev_dbg(soc_dai->dev, "ASoC: Symmetry forces %dHz rate\n", | |
209 | soc_dai->rate); | |
210 | ||
4dcdd43b | 211 | ret = snd_pcm_hw_constraint_single(substream->runtime, |
3635bf09 | 212 | SNDRV_PCM_HW_PARAM_RATE, |
4dcdd43b | 213 | soc_dai->rate); |
3635bf09 NC |
214 | if (ret < 0) { |
215 | dev_err(soc_dai->dev, | |
216 | "ASoC: Unable to apply rate constraint: %d\n", | |
217 | ret); | |
218 | return ret; | |
219 | } | |
220 | } | |
ddee627c | 221 | |
3635bf09 NC |
222 | if (soc_dai->channels && (soc_dai->driver->symmetric_channels || |
223 | rtd->dai_link->symmetric_channels)) { | |
224 | dev_dbg(soc_dai->dev, "ASoC: Symmetry forces %d channel(s)\n", | |
225 | soc_dai->channels); | |
ddee627c | 226 | |
4dcdd43b | 227 | ret = snd_pcm_hw_constraint_single(substream->runtime, |
3635bf09 | 228 | SNDRV_PCM_HW_PARAM_CHANNELS, |
3635bf09 NC |
229 | soc_dai->channels); |
230 | if (ret < 0) { | |
231 | dev_err(soc_dai->dev, | |
232 | "ASoC: Unable to apply channel symmetry constraint: %d\n", | |
233 | ret); | |
234 | return ret; | |
235 | } | |
ddee627c LG |
236 | } |
237 | ||
3635bf09 NC |
238 | if (soc_dai->sample_bits && (soc_dai->driver->symmetric_samplebits || |
239 | rtd->dai_link->symmetric_samplebits)) { | |
240 | dev_dbg(soc_dai->dev, "ASoC: Symmetry forces %d sample bits\n", | |
241 | soc_dai->sample_bits); | |
ddee627c | 242 | |
4dcdd43b | 243 | ret = snd_pcm_hw_constraint_single(substream->runtime, |
3635bf09 | 244 | SNDRV_PCM_HW_PARAM_SAMPLE_BITS, |
3635bf09 NC |
245 | soc_dai->sample_bits); |
246 | if (ret < 0) { | |
247 | dev_err(soc_dai->dev, | |
248 | "ASoC: Unable to apply sample bits symmetry constraint: %d\n", | |
249 | ret); | |
250 | return ret; | |
251 | } | |
ddee627c LG |
252 | } |
253 | ||
254 | return 0; | |
255 | } | |
256 | ||
3635bf09 NC |
257 | static int soc_pcm_params_symmetry(struct snd_pcm_substream *substream, |
258 | struct snd_pcm_hw_params *params) | |
259 | { | |
260 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
261 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
2e5894d7 | 262 | unsigned int rate, channels, sample_bits, symmetry, i; |
3635bf09 NC |
263 | |
264 | rate = params_rate(params); | |
265 | channels = params_channels(params); | |
266 | sample_bits = snd_pcm_format_physical_width(params_format(params)); | |
267 | ||
268 | /* reject unmatched parameters when applying symmetry */ | |
269 | symmetry = cpu_dai->driver->symmetric_rates || | |
3635bf09 | 270 | rtd->dai_link->symmetric_rates; |
2e5894d7 BC |
271 | |
272 | for (i = 0; i < rtd->num_codecs; i++) | |
273 | symmetry |= rtd->codec_dais[i]->driver->symmetric_rates; | |
274 | ||
3635bf09 NC |
275 | if (symmetry && cpu_dai->rate && cpu_dai->rate != rate) { |
276 | dev_err(rtd->dev, "ASoC: unmatched rate symmetry: %d - %d\n", | |
277 | cpu_dai->rate, rate); | |
278 | return -EINVAL; | |
ddee627c LG |
279 | } |
280 | ||
3635bf09 | 281 | symmetry = cpu_dai->driver->symmetric_channels || |
3635bf09 | 282 | rtd->dai_link->symmetric_channels; |
2e5894d7 BC |
283 | |
284 | for (i = 0; i < rtd->num_codecs; i++) | |
285 | symmetry |= rtd->codec_dais[i]->driver->symmetric_channels; | |
286 | ||
3635bf09 NC |
287 | if (symmetry && cpu_dai->channels && cpu_dai->channels != channels) { |
288 | dev_err(rtd->dev, "ASoC: unmatched channel symmetry: %d - %d\n", | |
289 | cpu_dai->channels, channels); | |
290 | return -EINVAL; | |
291 | } | |
ddee627c | 292 | |
3635bf09 | 293 | symmetry = cpu_dai->driver->symmetric_samplebits || |
3635bf09 | 294 | rtd->dai_link->symmetric_samplebits; |
2e5894d7 BC |
295 | |
296 | for (i = 0; i < rtd->num_codecs; i++) | |
297 | symmetry |= rtd->codec_dais[i]->driver->symmetric_samplebits; | |
298 | ||
3635bf09 NC |
299 | if (symmetry && cpu_dai->sample_bits && cpu_dai->sample_bits != sample_bits) { |
300 | dev_err(rtd->dev, "ASoC: unmatched sample bits symmetry: %d - %d\n", | |
301 | cpu_dai->sample_bits, sample_bits); | |
302 | return -EINVAL; | |
ddee627c LG |
303 | } |
304 | ||
305 | return 0; | |
306 | } | |
307 | ||
62e5f676 LPC |
308 | static bool soc_pcm_has_symmetry(struct snd_pcm_substream *substream) |
309 | { | |
310 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
311 | struct snd_soc_dai_driver *cpu_driver = rtd->cpu_dai->driver; | |
62e5f676 | 312 | struct snd_soc_dai_link *link = rtd->dai_link; |
2e5894d7 | 313 | unsigned int symmetry, i; |
62e5f676 | 314 | |
2e5894d7 BC |
315 | symmetry = cpu_driver->symmetric_rates || link->symmetric_rates || |
316 | cpu_driver->symmetric_channels || link->symmetric_channels || | |
317 | cpu_driver->symmetric_samplebits || link->symmetric_samplebits; | |
62e5f676 | 318 | |
2e5894d7 BC |
319 | for (i = 0; i < rtd->num_codecs; i++) |
320 | symmetry = symmetry || | |
321 | rtd->codec_dais[i]->driver->symmetric_rates || | |
322 | rtd->codec_dais[i]->driver->symmetric_channels || | |
323 | rtd->codec_dais[i]->driver->symmetric_samplebits; | |
324 | ||
325 | return symmetry; | |
62e5f676 LPC |
326 | } |
327 | ||
2e5894d7 | 328 | static void soc_pcm_set_msb(struct snd_pcm_substream *substream, int bits) |
58ba9b25 | 329 | { |
2e5894d7 | 330 | struct snd_soc_pcm_runtime *rtd = substream->private_data; |
c6068d3a | 331 | int ret; |
58ba9b25 MB |
332 | |
333 | if (!bits) | |
334 | return; | |
335 | ||
0e2a3751 LPC |
336 | ret = snd_pcm_hw_constraint_msbits(substream->runtime, 0, 0, bits); |
337 | if (ret != 0) | |
338 | dev_warn(rtd->dev, "ASoC: Failed to set MSB %d: %d\n", | |
339 | bits, ret); | |
58ba9b25 MB |
340 | } |
341 | ||
c8dd1fec BC |
342 | static void soc_pcm_apply_msb(struct snd_pcm_substream *substream) |
343 | { | |
344 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
345 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
2e5894d7 BC |
346 | struct snd_soc_dai *codec_dai; |
347 | int i; | |
c8dd1fec BC |
348 | unsigned int bits = 0, cpu_bits; |
349 | ||
350 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { | |
2e5894d7 BC |
351 | for (i = 0; i < rtd->num_codecs; i++) { |
352 | codec_dai = rtd->codec_dais[i]; | |
353 | if (codec_dai->driver->playback.sig_bits == 0) { | |
354 | bits = 0; | |
355 | break; | |
356 | } | |
357 | bits = max(codec_dai->driver->playback.sig_bits, bits); | |
358 | } | |
c8dd1fec BC |
359 | cpu_bits = cpu_dai->driver->playback.sig_bits; |
360 | } else { | |
2e5894d7 BC |
361 | for (i = 0; i < rtd->num_codecs; i++) { |
362 | codec_dai = rtd->codec_dais[i]; | |
5e63dfcc | 363 | if (codec_dai->driver->capture.sig_bits == 0) { |
2e5894d7 BC |
364 | bits = 0; |
365 | break; | |
366 | } | |
367 | bits = max(codec_dai->driver->capture.sig_bits, bits); | |
368 | } | |
c8dd1fec BC |
369 | cpu_bits = cpu_dai->driver->capture.sig_bits; |
370 | } | |
371 | ||
2e5894d7 BC |
372 | soc_pcm_set_msb(substream, bits); |
373 | soc_pcm_set_msb(substream, cpu_bits); | |
c8dd1fec BC |
374 | } |
375 | ||
2e5894d7 | 376 | static void soc_pcm_init_runtime_hw(struct snd_pcm_substream *substream) |
bd477c31 | 377 | { |
2e5894d7 | 378 | struct snd_pcm_runtime *runtime = substream->runtime; |
78e45c99 | 379 | struct snd_pcm_hardware *hw = &runtime->hw; |
2e5894d7 BC |
380 | struct snd_soc_pcm_runtime *rtd = substream->private_data; |
381 | struct snd_soc_dai_driver *cpu_dai_drv = rtd->cpu_dai->driver; | |
382 | struct snd_soc_dai_driver *codec_dai_drv; | |
383 | struct snd_soc_pcm_stream *codec_stream; | |
384 | struct snd_soc_pcm_stream *cpu_stream; | |
385 | unsigned int chan_min = 0, chan_max = UINT_MAX; | |
386 | unsigned int rate_min = 0, rate_max = UINT_MAX; | |
387 | unsigned int rates = UINT_MAX; | |
388 | u64 formats = ULLONG_MAX; | |
389 | int i; | |
78e45c99 | 390 | |
2e5894d7 BC |
391 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) |
392 | cpu_stream = &cpu_dai_drv->playback; | |
16d7ea91 | 393 | else |
2e5894d7 | 394 | cpu_stream = &cpu_dai_drv->capture; |
78e45c99 | 395 | |
2e5894d7 BC |
396 | /* first calculate min/max only for CODECs in the DAI link */ |
397 | for (i = 0; i < rtd->num_codecs; i++) { | |
cde79035 RW |
398 | |
399 | /* | |
400 | * Skip CODECs which don't support the current stream type. | |
401 | * Otherwise, since the rate, channel, and format values will | |
402 | * zero in that case, we would have no usable settings left, | |
403 | * causing the resulting setup to fail. | |
404 | * At least one CODEC should match, otherwise we should have | |
405 | * bailed out on a higher level, since there would be no | |
406 | * CODEC to support the transfer direction in that case. | |
407 | */ | |
408 | if (!snd_soc_dai_stream_valid(rtd->codec_dais[i], | |
409 | substream->stream)) | |
410 | continue; | |
411 | ||
2e5894d7 BC |
412 | codec_dai_drv = rtd->codec_dais[i]->driver; |
413 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) | |
414 | codec_stream = &codec_dai_drv->playback; | |
415 | else | |
416 | codec_stream = &codec_dai_drv->capture; | |
417 | chan_min = max(chan_min, codec_stream->channels_min); | |
418 | chan_max = min(chan_max, codec_stream->channels_max); | |
419 | rate_min = max(rate_min, codec_stream->rate_min); | |
420 | rate_max = min_not_zero(rate_max, codec_stream->rate_max); | |
421 | formats &= codec_stream->formats; | |
422 | rates = snd_pcm_rate_mask_intersect(codec_stream->rates, rates); | |
423 | } | |
424 | ||
425 | /* | |
426 | * chan min/max cannot be enforced if there are multiple CODEC DAIs | |
427 | * connected to a single CPU DAI, use CPU DAI's directly and let | |
428 | * channel allocation be fixed up later | |
429 | */ | |
430 | if (rtd->num_codecs > 1) { | |
431 | chan_min = cpu_stream->channels_min; | |
432 | chan_max = cpu_stream->channels_max; | |
433 | } | |
434 | ||
435 | hw->channels_min = max(chan_min, cpu_stream->channels_min); | |
436 | hw->channels_max = min(chan_max, cpu_stream->channels_max); | |
437 | if (hw->formats) | |
438 | hw->formats &= formats & cpu_stream->formats; | |
439 | else | |
440 | hw->formats = formats & cpu_stream->formats; | |
441 | hw->rates = snd_pcm_rate_mask_intersect(rates, cpu_stream->rates); | |
78e45c99 LPC |
442 | |
443 | snd_pcm_limit_hw_rates(runtime); | |
444 | ||
445 | hw->rate_min = max(hw->rate_min, cpu_stream->rate_min); | |
2e5894d7 | 446 | hw->rate_min = max(hw->rate_min, rate_min); |
78e45c99 | 447 | hw->rate_max = min_not_zero(hw->rate_max, cpu_stream->rate_max); |
2e5894d7 | 448 | hw->rate_max = min_not_zero(hw->rate_max, rate_max); |
bd477c31 LPC |
449 | } |
450 | ||
ddee627c LG |
451 | /* |
452 | * Called by ALSA when a PCM substream is opened, the runtime->hw record is | |
453 | * then initialized and any private data can be allocated. This also calls | |
ef050bec | 454 | * startup for the cpu DAI, component, machine and codec DAI. |
ddee627c LG |
455 | */ |
456 | static int soc_pcm_open(struct snd_pcm_substream *substream) | |
457 | { | |
458 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
459 | struct snd_pcm_runtime *runtime = substream->runtime; | |
90be711e KM |
460 | struct snd_soc_component *component; |
461 | struct snd_soc_rtdcom_list *rtdcom; | |
ddee627c | 462 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
2e5894d7 BC |
463 | struct snd_soc_dai *codec_dai; |
464 | const char *codec_dai_name = "multicodec"; | |
b8135864 | 465 | int i, ret = 0, __ret; |
ddee627c | 466 | |
988e8cc4 | 467 | pinctrl_pm_select_default_state(cpu_dai->dev); |
2e5894d7 BC |
468 | for (i = 0; i < rtd->num_codecs; i++) |
469 | pinctrl_pm_select_default_state(rtd->codec_dais[i]->dev); | |
90be711e KM |
470 | |
471 | for_each_rtdcom(rtd, rtdcom) { | |
472 | component = rtdcom->component; | |
473 | ||
474 | pm_runtime_get_sync(component->dev); | |
475 | } | |
d6652ef8 | 476 | |
b8c0dab9 | 477 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); |
ddee627c LG |
478 | |
479 | /* startup the audio subsystem */ | |
9900a422 | 480 | if (cpu_dai->driver->ops->startup) { |
ddee627c LG |
481 | ret = cpu_dai->driver->ops->startup(substream, cpu_dai); |
482 | if (ret < 0) { | |
103d84a3 LG |
483 | dev_err(cpu_dai->dev, "ASoC: can't open interface" |
484 | " %s: %d\n", cpu_dai->name, ret); | |
ddee627c LG |
485 | goto out; |
486 | } | |
487 | } | |
488 | ||
b8135864 KM |
489 | ret = 0; |
490 | for_each_rtdcom(rtd, rtdcom) { | |
491 | component = rtdcom->component; | |
492 | ||
b8135864 KM |
493 | if (!component->driver->ops || |
494 | !component->driver->ops->open) | |
495 | continue; | |
496 | ||
497 | __ret = component->driver->ops->open(substream); | |
498 | if (__ret < 0) { | |
499 | dev_err(component->dev, | |
500 | "ASoC: can't open component %s: %d\n", | |
637917b1 | 501 | component->name, __ret); |
b8135864 KM |
502 | ret = __ret; |
503 | } | |
504 | } | |
505 | if (ret < 0) | |
506 | goto component_err; | |
507 | ||
2e5894d7 BC |
508 | for (i = 0; i < rtd->num_codecs; i++) { |
509 | codec_dai = rtd->codec_dais[i]; | |
9900a422 | 510 | if (codec_dai->driver->ops->startup) { |
2e5894d7 BC |
511 | ret = codec_dai->driver->ops->startup(substream, |
512 | codec_dai); | |
513 | if (ret < 0) { | |
514 | dev_err(codec_dai->dev, | |
515 | "ASoC: can't open codec %s: %d\n", | |
516 | codec_dai->name, ret); | |
517 | goto codec_dai_err; | |
518 | } | |
ddee627c | 519 | } |
2e5894d7 BC |
520 | |
521 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) | |
522 | codec_dai->tx_mask = 0; | |
523 | else | |
524 | codec_dai->rx_mask = 0; | |
ddee627c LG |
525 | } |
526 | ||
75ab9eb6 | 527 | if (rtd->dai_link->ops->startup) { |
ddee627c LG |
528 | ret = rtd->dai_link->ops->startup(substream); |
529 | if (ret < 0) { | |
103d84a3 | 530 | pr_err("ASoC: %s startup failed: %d\n", |
25bfe662 | 531 | rtd->dai_link->name, ret); |
ddee627c LG |
532 | goto machine_err; |
533 | } | |
534 | } | |
535 | ||
01d7584c LG |
536 | /* Dynamic PCM DAI links compat checks use dynamic capabilities */ |
537 | if (rtd->dai_link->dynamic || rtd->dai_link->no_pcm) | |
538 | goto dynamic; | |
539 | ||
ddee627c | 540 | /* Check that the codec and cpu DAIs are compatible */ |
2e5894d7 BC |
541 | soc_pcm_init_runtime_hw(substream); |
542 | ||
543 | if (rtd->num_codecs == 1) | |
544 | codec_dai_name = rtd->codec_dai->name; | |
ddee627c | 545 | |
62e5f676 LPC |
546 | if (soc_pcm_has_symmetry(substream)) |
547 | runtime->hw.info |= SNDRV_PCM_INFO_JOINT_DUPLEX; | |
548 | ||
ddee627c | 549 | ret = -EINVAL; |
ddee627c | 550 | if (!runtime->hw.rates) { |
103d84a3 | 551 | printk(KERN_ERR "ASoC: %s <-> %s No matching rates\n", |
2e5894d7 | 552 | codec_dai_name, cpu_dai->name); |
ddee627c LG |
553 | goto config_err; |
554 | } | |
555 | if (!runtime->hw.formats) { | |
103d84a3 | 556 | printk(KERN_ERR "ASoC: %s <-> %s No matching formats\n", |
2e5894d7 | 557 | codec_dai_name, cpu_dai->name); |
ddee627c LG |
558 | goto config_err; |
559 | } | |
560 | if (!runtime->hw.channels_min || !runtime->hw.channels_max || | |
561 | runtime->hw.channels_min > runtime->hw.channels_max) { | |
103d84a3 | 562 | printk(KERN_ERR "ASoC: %s <-> %s No matching channels\n", |
2e5894d7 | 563 | codec_dai_name, cpu_dai->name); |
ddee627c LG |
564 | goto config_err; |
565 | } | |
566 | ||
c8dd1fec | 567 | soc_pcm_apply_msb(substream); |
58ba9b25 | 568 | |
ddee627c | 569 | /* Symmetry only applies if we've already got an active stream. */ |
17841020 DA |
570 | if (cpu_dai->active) { |
571 | ret = soc_pcm_apply_symmetry(substream, cpu_dai); | |
572 | if (ret != 0) | |
573 | goto config_err; | |
574 | } | |
575 | ||
2e5894d7 BC |
576 | for (i = 0; i < rtd->num_codecs; i++) { |
577 | if (rtd->codec_dais[i]->active) { | |
578 | ret = soc_pcm_apply_symmetry(substream, | |
579 | rtd->codec_dais[i]); | |
580 | if (ret != 0) | |
581 | goto config_err; | |
582 | } | |
ddee627c LG |
583 | } |
584 | ||
103d84a3 | 585 | pr_debug("ASoC: %s <-> %s info:\n", |
2e5894d7 | 586 | codec_dai_name, cpu_dai->name); |
103d84a3 LG |
587 | pr_debug("ASoC: rate mask 0x%x\n", runtime->hw.rates); |
588 | pr_debug("ASoC: min ch %d max ch %d\n", runtime->hw.channels_min, | |
ddee627c | 589 | runtime->hw.channels_max); |
103d84a3 | 590 | pr_debug("ASoC: min rate %d max rate %d\n", runtime->hw.rate_min, |
ddee627c LG |
591 | runtime->hw.rate_max); |
592 | ||
01d7584c | 593 | dynamic: |
24894b76 LPC |
594 | |
595 | snd_soc_runtime_activate(rtd, substream->stream); | |
596 | ||
b8c0dab9 | 597 | mutex_unlock(&rtd->pcm_mutex); |
ddee627c LG |
598 | return 0; |
599 | ||
600 | config_err: | |
75ab9eb6 | 601 | if (rtd->dai_link->ops->shutdown) |
ddee627c LG |
602 | rtd->dai_link->ops->shutdown(substream); |
603 | ||
604 | machine_err: | |
2e5894d7 | 605 | i = rtd->num_codecs; |
ddee627c LG |
606 | |
607 | codec_dai_err: | |
2e5894d7 BC |
608 | while (--i >= 0) { |
609 | codec_dai = rtd->codec_dais[i]; | |
610 | if (codec_dai->driver->ops->shutdown) | |
611 | codec_dai->driver->ops->shutdown(substream, codec_dai); | |
612 | } | |
613 | ||
b8135864 KM |
614 | component_err: |
615 | for_each_rtdcom(rtd, rtdcom) { | |
616 | component = rtdcom->component; | |
617 | ||
b8135864 KM |
618 | if (!component->driver->ops || |
619 | !component->driver->ops->close) | |
620 | continue; | |
621 | ||
622 | component->driver->ops->close(substream); | |
623 | } | |
624 | ||
ddee627c LG |
625 | if (cpu_dai->driver->ops->shutdown) |
626 | cpu_dai->driver->ops->shutdown(substream, cpu_dai); | |
627 | out: | |
b8c0dab9 | 628 | mutex_unlock(&rtd->pcm_mutex); |
d6652ef8 | 629 | |
90be711e KM |
630 | for_each_rtdcom(rtd, rtdcom) { |
631 | component = rtdcom->component; | |
632 | ||
633 | pm_runtime_mark_last_busy(component->dev); | |
634 | pm_runtime_put_autosuspend(component->dev); | |
3f809783 SK |
635 | } |
636 | ||
2e5894d7 BC |
637 | for (i = 0; i < rtd->num_codecs; i++) { |
638 | if (!rtd->codec_dais[i]->active) | |
639 | pinctrl_pm_select_sleep_state(rtd->codec_dais[i]->dev); | |
640 | } | |
988e8cc4 NC |
641 | if (!cpu_dai->active) |
642 | pinctrl_pm_select_sleep_state(cpu_dai->dev); | |
d6652ef8 | 643 | |
ddee627c LG |
644 | return ret; |
645 | } | |
646 | ||
647 | /* | |
648 | * Power down the audio subsystem pmdown_time msecs after close is called. | |
649 | * This is to ensure there are no pops or clicks in between any music tracks | |
650 | * due to DAPM power cycling. | |
651 | */ | |
652 | static void close_delayed_work(struct work_struct *work) | |
653 | { | |
654 | struct snd_soc_pcm_runtime *rtd = | |
655 | container_of(work, struct snd_soc_pcm_runtime, delayed_work.work); | |
2e5894d7 | 656 | struct snd_soc_dai *codec_dai = rtd->codec_dais[0]; |
ddee627c | 657 | |
b8c0dab9 | 658 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); |
ddee627c | 659 | |
103d84a3 | 660 | dev_dbg(rtd->dev, "ASoC: pop wq checking: %s status: %s waiting: %s\n", |
ddee627c LG |
661 | codec_dai->driver->playback.stream_name, |
662 | codec_dai->playback_active ? "active" : "inactive", | |
9bffb1fb | 663 | rtd->pop_wait ? "yes" : "no"); |
ddee627c LG |
664 | |
665 | /* are we waiting on this codec DAI stream */ | |
9bffb1fb MLC |
666 | if (rtd->pop_wait == 1) { |
667 | rtd->pop_wait = 0; | |
7bd3a6f3 | 668 | snd_soc_dapm_stream_event(rtd, SNDRV_PCM_STREAM_PLAYBACK, |
d9b0951b | 669 | SND_SOC_DAPM_STREAM_STOP); |
ddee627c LG |
670 | } |
671 | ||
b8c0dab9 | 672 | mutex_unlock(&rtd->pcm_mutex); |
ddee627c LG |
673 | } |
674 | ||
675 | /* | |
676 | * Called by ALSA when a PCM substream is closed. Private data can be | |
ef050bec | 677 | * freed here. The cpu DAI, codec DAI, machine and components are also |
ddee627c LG |
678 | * shutdown. |
679 | */ | |
91d5e6b4 | 680 | static int soc_pcm_close(struct snd_pcm_substream *substream) |
ddee627c LG |
681 | { |
682 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
90be711e KM |
683 | struct snd_soc_component *component; |
684 | struct snd_soc_rtdcom_list *rtdcom; | |
ddee627c | 685 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
2e5894d7 BC |
686 | struct snd_soc_dai *codec_dai; |
687 | int i; | |
ddee627c | 688 | |
b8c0dab9 | 689 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); |
ddee627c | 690 | |
24894b76 | 691 | snd_soc_runtime_deactivate(rtd, substream->stream); |
ddee627c | 692 | |
17841020 DA |
693 | /* clear the corresponding DAIs rate when inactive */ |
694 | if (!cpu_dai->active) | |
695 | cpu_dai->rate = 0; | |
696 | ||
2e5894d7 BC |
697 | for (i = 0; i < rtd->num_codecs; i++) { |
698 | codec_dai = rtd->codec_dais[i]; | |
699 | if (!codec_dai->active) | |
700 | codec_dai->rate = 0; | |
701 | } | |
25b76791 | 702 | |
ae11601b RB |
703 | snd_soc_dai_digital_mute(cpu_dai, 1, substream->stream); |
704 | ||
ddee627c LG |
705 | if (cpu_dai->driver->ops->shutdown) |
706 | cpu_dai->driver->ops->shutdown(substream, cpu_dai); | |
707 | ||
2e5894d7 BC |
708 | for (i = 0; i < rtd->num_codecs; i++) { |
709 | codec_dai = rtd->codec_dais[i]; | |
710 | if (codec_dai->driver->ops->shutdown) | |
711 | codec_dai->driver->ops->shutdown(substream, codec_dai); | |
712 | } | |
ddee627c | 713 | |
75ab9eb6 | 714 | if (rtd->dai_link->ops->shutdown) |
ddee627c LG |
715 | rtd->dai_link->ops->shutdown(substream); |
716 | ||
b8135864 KM |
717 | for_each_rtdcom(rtd, rtdcom) { |
718 | component = rtdcom->component; | |
719 | ||
b8135864 KM |
720 | if (!component->driver->ops || |
721 | !component->driver->ops->close) | |
722 | continue; | |
723 | ||
724 | component->driver->ops->close(substream); | |
725 | } | |
726 | ||
ddee627c | 727 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { |
208a1589 | 728 | if (snd_soc_runtime_ignore_pmdown_time(rtd)) { |
1d69c5c5 PU |
729 | /* powered down playback stream now */ |
730 | snd_soc_dapm_stream_event(rtd, | |
7bd3a6f3 | 731 | SNDRV_PCM_STREAM_PLAYBACK, |
7bd3a6f3 | 732 | SND_SOC_DAPM_STREAM_STOP); |
1d69c5c5 PU |
733 | } else { |
734 | /* start delayed pop wq here for playback streams */ | |
9bffb1fb | 735 | rtd->pop_wait = 1; |
d4e1a73a MB |
736 | queue_delayed_work(system_power_efficient_wq, |
737 | &rtd->delayed_work, | |
738 | msecs_to_jiffies(rtd->pmdown_time)); | |
1d69c5c5 | 739 | } |
ddee627c LG |
740 | } else { |
741 | /* capture streams can be powered down now */ | |
7bd3a6f3 | 742 | snd_soc_dapm_stream_event(rtd, SNDRV_PCM_STREAM_CAPTURE, |
d9b0951b | 743 | SND_SOC_DAPM_STREAM_STOP); |
ddee627c LG |
744 | } |
745 | ||
b8c0dab9 | 746 | mutex_unlock(&rtd->pcm_mutex); |
d6652ef8 | 747 | |
90be711e KM |
748 | for_each_rtdcom(rtd, rtdcom) { |
749 | component = rtdcom->component; | |
3f809783 | 750 | |
90be711e KM |
751 | pm_runtime_mark_last_busy(component->dev); |
752 | pm_runtime_put_autosuspend(component->dev); | |
3f809783 SK |
753 | } |
754 | ||
2e5894d7 BC |
755 | for (i = 0; i < rtd->num_codecs; i++) { |
756 | if (!rtd->codec_dais[i]->active) | |
757 | pinctrl_pm_select_sleep_state(rtd->codec_dais[i]->dev); | |
758 | } | |
988e8cc4 NC |
759 | if (!cpu_dai->active) |
760 | pinctrl_pm_select_sleep_state(cpu_dai->dev); | |
d6652ef8 | 761 | |
ddee627c LG |
762 | return 0; |
763 | } | |
764 | ||
765 | /* | |
766 | * Called by ALSA when the PCM substream is prepared, can set format, sample | |
767 | * rate, etc. This function is non atomic and can be called multiple times, | |
768 | * it can refer to the runtime info. | |
769 | */ | |
770 | static int soc_pcm_prepare(struct snd_pcm_substream *substream) | |
771 | { | |
772 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
b8135864 KM |
773 | struct snd_soc_component *component; |
774 | struct snd_soc_rtdcom_list *rtdcom; | |
ddee627c | 775 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
2e5894d7 BC |
776 | struct snd_soc_dai *codec_dai; |
777 | int i, ret = 0; | |
ddee627c | 778 | |
b8c0dab9 | 779 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); |
ddee627c | 780 | |
75ab9eb6 | 781 | if (rtd->dai_link->ops->prepare) { |
ddee627c LG |
782 | ret = rtd->dai_link->ops->prepare(substream); |
783 | if (ret < 0) { | |
103d84a3 LG |
784 | dev_err(rtd->card->dev, "ASoC: machine prepare error:" |
785 | " %d\n", ret); | |
ddee627c LG |
786 | goto out; |
787 | } | |
788 | } | |
789 | ||
b8135864 KM |
790 | for_each_rtdcom(rtd, rtdcom) { |
791 | component = rtdcom->component; | |
792 | ||
b8135864 KM |
793 | if (!component->driver->ops || |
794 | !component->driver->ops->prepare) | |
795 | continue; | |
796 | ||
797 | ret = component->driver->ops->prepare(substream); | |
798 | if (ret < 0) { | |
799 | dev_err(component->dev, | |
800 | "ASoC: platform prepare error: %d\n", ret); | |
801 | goto out; | |
802 | } | |
803 | } | |
804 | ||
2e5894d7 BC |
805 | for (i = 0; i < rtd->num_codecs; i++) { |
806 | codec_dai = rtd->codec_dais[i]; | |
9900a422 | 807 | if (codec_dai->driver->ops->prepare) { |
2e5894d7 BC |
808 | ret = codec_dai->driver->ops->prepare(substream, |
809 | codec_dai); | |
810 | if (ret < 0) { | |
811 | dev_err(codec_dai->dev, | |
90cc7f1c JN |
812 | "ASoC: codec DAI prepare error: %d\n", |
813 | ret); | |
2e5894d7 BC |
814 | goto out; |
815 | } | |
ddee627c LG |
816 | } |
817 | } | |
818 | ||
9900a422 | 819 | if (cpu_dai->driver->ops->prepare) { |
ddee627c LG |
820 | ret = cpu_dai->driver->ops->prepare(substream, cpu_dai); |
821 | if (ret < 0) { | |
90cc7f1c JN |
822 | dev_err(cpu_dai->dev, |
823 | "ASoC: cpu DAI prepare error: %d\n", ret); | |
ddee627c LG |
824 | goto out; |
825 | } | |
826 | } | |
827 | ||
828 | /* cancel any delayed stream shutdown that is pending */ | |
829 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK && | |
9bffb1fb MLC |
830 | rtd->pop_wait) { |
831 | rtd->pop_wait = 0; | |
ddee627c LG |
832 | cancel_delayed_work(&rtd->delayed_work); |
833 | } | |
834 | ||
d9b0951b LG |
835 | snd_soc_dapm_stream_event(rtd, substream->stream, |
836 | SND_SOC_DAPM_STREAM_START); | |
ddee627c | 837 | |
2e5894d7 BC |
838 | for (i = 0; i < rtd->num_codecs; i++) |
839 | snd_soc_dai_digital_mute(rtd->codec_dais[i], 0, | |
840 | substream->stream); | |
ae11601b | 841 | snd_soc_dai_digital_mute(cpu_dai, 0, substream->stream); |
ddee627c LG |
842 | |
843 | out: | |
b8c0dab9 | 844 | mutex_unlock(&rtd->pcm_mutex); |
ddee627c LG |
845 | return ret; |
846 | } | |
847 | ||
2e5894d7 BC |
848 | static void soc_pcm_codec_params_fixup(struct snd_pcm_hw_params *params, |
849 | unsigned int mask) | |
850 | { | |
851 | struct snd_interval *interval; | |
852 | int channels = hweight_long(mask); | |
853 | ||
854 | interval = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS); | |
855 | interval->min = channels; | |
856 | interval->max = channels; | |
857 | } | |
858 | ||
93e6958a BC |
859 | int soc_dai_hw_params(struct snd_pcm_substream *substream, |
860 | struct snd_pcm_hw_params *params, | |
861 | struct snd_soc_dai *dai) | |
862 | { | |
863 | int ret; | |
864 | ||
9900a422 | 865 | if (dai->driver->ops->hw_params) { |
93e6958a BC |
866 | ret = dai->driver->ops->hw_params(substream, params, dai); |
867 | if (ret < 0) { | |
868 | dev_err(dai->dev, "ASoC: can't set %s hw params: %d\n", | |
869 | dai->name, ret); | |
870 | return ret; | |
871 | } | |
872 | } | |
873 | ||
874 | return 0; | |
875 | } | |
876 | ||
ddee627c LG |
877 | /* |
878 | * Called by ALSA when the hardware params are set by application. This | |
879 | * function can also be called multiple times and can allocate buffers | |
880 | * (using snd_pcm_lib_* ). It's non-atomic. | |
881 | */ | |
882 | static int soc_pcm_hw_params(struct snd_pcm_substream *substream, | |
883 | struct snd_pcm_hw_params *params) | |
884 | { | |
885 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
b8135864 KM |
886 | struct snd_soc_component *component; |
887 | struct snd_soc_rtdcom_list *rtdcom; | |
ddee627c | 888 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
b8135864 | 889 | int i, ret = 0, __ret; |
ddee627c | 890 | |
b8c0dab9 | 891 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); |
75ab9eb6 | 892 | if (rtd->dai_link->ops->hw_params) { |
ddee627c LG |
893 | ret = rtd->dai_link->ops->hw_params(substream, params); |
894 | if (ret < 0) { | |
103d84a3 LG |
895 | dev_err(rtd->card->dev, "ASoC: machine hw_params" |
896 | " failed: %d\n", ret); | |
ddee627c LG |
897 | goto out; |
898 | } | |
899 | } | |
900 | ||
2e5894d7 BC |
901 | for (i = 0; i < rtd->num_codecs; i++) { |
902 | struct snd_soc_dai *codec_dai = rtd->codec_dais[i]; | |
903 | struct snd_pcm_hw_params codec_params; | |
904 | ||
cde79035 RW |
905 | /* |
906 | * Skip CODECs which don't support the current stream type, | |
907 | * the idea being that if a CODEC is not used for the currently | |
908 | * set up transfer direction, it should not need to be | |
909 | * configured, especially since the configuration used might | |
910 | * not even be supported by that CODEC. There may be cases | |
911 | * however where a CODEC needs to be set up although it is | |
912 | * actually not being used for the transfer, e.g. if a | |
913 | * capture-only CODEC is acting as an LRCLK and/or BCLK master | |
914 | * for the DAI link including a playback-only CODEC. | |
915 | * If this becomes necessary, we will have to augment the | |
916 | * machine driver setup with information on how to act, so | |
917 | * we can do the right thing here. | |
918 | */ | |
919 | if (!snd_soc_dai_stream_valid(codec_dai, substream->stream)) | |
920 | continue; | |
921 | ||
2e5894d7 BC |
922 | /* copy params for each codec */ |
923 | codec_params = *params; | |
924 | ||
925 | /* fixup params based on TDM slot masks */ | |
926 | if (codec_dai->tx_mask) | |
927 | soc_pcm_codec_params_fixup(&codec_params, | |
928 | codec_dai->tx_mask); | |
929 | if (codec_dai->rx_mask) | |
930 | soc_pcm_codec_params_fixup(&codec_params, | |
931 | codec_dai->rx_mask); | |
932 | ||
93e6958a BC |
933 | ret = soc_dai_hw_params(substream, &codec_params, codec_dai); |
934 | if(ret < 0) | |
ddee627c | 935 | goto codec_err; |
ddee627c | 936 | |
2e5894d7 BC |
937 | codec_dai->rate = params_rate(&codec_params); |
938 | codec_dai->channels = params_channels(&codec_params); | |
939 | codec_dai->sample_bits = snd_pcm_format_physical_width( | |
940 | params_format(&codec_params)); | |
ddee627c LG |
941 | } |
942 | ||
93e6958a BC |
943 | ret = soc_dai_hw_params(substream, params, cpu_dai); |
944 | if (ret < 0) | |
945 | goto interface_err; | |
ddee627c | 946 | |
b8135864 KM |
947 | ret = 0; |
948 | for_each_rtdcom(rtd, rtdcom) { | |
949 | component = rtdcom->component; | |
950 | ||
b8135864 KM |
951 | if (!component->driver->ops || |
952 | !component->driver->ops->hw_params) | |
953 | continue; | |
954 | ||
955 | __ret = component->driver->ops->hw_params(substream, params); | |
956 | if (__ret < 0) { | |
957 | dev_err(component->dev, | |
958 | "ASoC: %s hw params failed: %d\n", | |
b91530f0 | 959 | component->name, __ret); |
b8135864 KM |
960 | ret = __ret; |
961 | } | |
962 | } | |
963 | if (ret < 0) | |
964 | goto component_err; | |
965 | ||
3635bf09 | 966 | /* store the parameters for each DAIs */ |
17841020 | 967 | cpu_dai->rate = params_rate(params); |
3635bf09 NC |
968 | cpu_dai->channels = params_channels(params); |
969 | cpu_dai->sample_bits = | |
970 | snd_pcm_format_physical_width(params_format(params)); | |
971 | ||
957ce0c6 | 972 | ret = soc_pcm_params_symmetry(substream, params); |
973 | if (ret) | |
b8135864 | 974 | goto component_err; |
ddee627c | 975 | out: |
b8c0dab9 | 976 | mutex_unlock(&rtd->pcm_mutex); |
ddee627c LG |
977 | return ret; |
978 | ||
b8135864 KM |
979 | component_err: |
980 | for_each_rtdcom(rtd, rtdcom) { | |
981 | component = rtdcom->component; | |
982 | ||
b8135864 KM |
983 | if (!component->driver->ops || |
984 | !component->driver->ops->hw_free) | |
985 | continue; | |
986 | ||
987 | component->driver->ops->hw_free(substream); | |
988 | } | |
989 | ||
9900a422 | 990 | if (cpu_dai->driver->ops->hw_free) |
ddee627c LG |
991 | cpu_dai->driver->ops->hw_free(substream, cpu_dai); |
992 | ||
993 | interface_err: | |
2e5894d7 | 994 | i = rtd->num_codecs; |
ddee627c LG |
995 | |
996 | codec_err: | |
2e5894d7 BC |
997 | while (--i >= 0) { |
998 | struct snd_soc_dai *codec_dai = rtd->codec_dais[i]; | |
9900a422 | 999 | if (codec_dai->driver->ops->hw_free) |
2e5894d7 BC |
1000 | codec_dai->driver->ops->hw_free(substream, codec_dai); |
1001 | codec_dai->rate = 0; | |
1002 | } | |
1003 | ||
75ab9eb6 | 1004 | if (rtd->dai_link->ops->hw_free) |
ddee627c LG |
1005 | rtd->dai_link->ops->hw_free(substream); |
1006 | ||
b8c0dab9 | 1007 | mutex_unlock(&rtd->pcm_mutex); |
ddee627c LG |
1008 | return ret; |
1009 | } | |
1010 | ||
1011 | /* | |
1012 | * Frees resources allocated by hw_params, can be called multiple times | |
1013 | */ | |
1014 | static int soc_pcm_hw_free(struct snd_pcm_substream *substream) | |
1015 | { | |
1016 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
b8135864 KM |
1017 | struct snd_soc_component *component; |
1018 | struct snd_soc_rtdcom_list *rtdcom; | |
ddee627c | 1019 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
2e5894d7 | 1020 | struct snd_soc_dai *codec_dai; |
7f62b6ee | 1021 | bool playback = substream->stream == SNDRV_PCM_STREAM_PLAYBACK; |
2e5894d7 | 1022 | int i; |
ddee627c | 1023 | |
b8c0dab9 | 1024 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); |
ddee627c | 1025 | |
d3383420 NC |
1026 | /* clear the corresponding DAIs parameters when going to be inactive */ |
1027 | if (cpu_dai->active == 1) { | |
1028 | cpu_dai->rate = 0; | |
1029 | cpu_dai->channels = 0; | |
1030 | cpu_dai->sample_bits = 0; | |
1031 | } | |
1032 | ||
2e5894d7 BC |
1033 | for (i = 0; i < rtd->num_codecs; i++) { |
1034 | codec_dai = rtd->codec_dais[i]; | |
1035 | if (codec_dai->active == 1) { | |
1036 | codec_dai->rate = 0; | |
1037 | codec_dai->channels = 0; | |
1038 | codec_dai->sample_bits = 0; | |
1039 | } | |
d3383420 NC |
1040 | } |
1041 | ||
ddee627c | 1042 | /* apply codec digital mute */ |
2e5894d7 BC |
1043 | for (i = 0; i < rtd->num_codecs; i++) { |
1044 | if ((playback && rtd->codec_dais[i]->playback_active == 1) || | |
1045 | (!playback && rtd->codec_dais[i]->capture_active == 1)) | |
1046 | snd_soc_dai_digital_mute(rtd->codec_dais[i], 1, | |
1047 | substream->stream); | |
1048 | } | |
ddee627c LG |
1049 | |
1050 | /* free any machine hw params */ | |
75ab9eb6 | 1051 | if (rtd->dai_link->ops->hw_free) |
ddee627c LG |
1052 | rtd->dai_link->ops->hw_free(substream); |
1053 | ||
b8135864 KM |
1054 | /* free any component resources */ |
1055 | for_each_rtdcom(rtd, rtdcom) { | |
1056 | component = rtdcom->component; | |
1057 | ||
b8135864 KM |
1058 | if (!component->driver->ops || |
1059 | !component->driver->ops->hw_free) | |
1060 | continue; | |
1061 | ||
1062 | component->driver->ops->hw_free(substream); | |
1063 | } | |
1064 | ||
ddee627c | 1065 | /* now free hw params for the DAIs */ |
2e5894d7 BC |
1066 | for (i = 0; i < rtd->num_codecs; i++) { |
1067 | codec_dai = rtd->codec_dais[i]; | |
9900a422 | 1068 | if (codec_dai->driver->ops->hw_free) |
2e5894d7 BC |
1069 | codec_dai->driver->ops->hw_free(substream, codec_dai); |
1070 | } | |
ddee627c | 1071 | |
9900a422 | 1072 | if (cpu_dai->driver->ops->hw_free) |
ddee627c LG |
1073 | cpu_dai->driver->ops->hw_free(substream, cpu_dai); |
1074 | ||
b8c0dab9 | 1075 | mutex_unlock(&rtd->pcm_mutex); |
ddee627c LG |
1076 | return 0; |
1077 | } | |
1078 | ||
1079 | static int soc_pcm_trigger(struct snd_pcm_substream *substream, int cmd) | |
1080 | { | |
1081 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
b8135864 KM |
1082 | struct snd_soc_component *component; |
1083 | struct snd_soc_rtdcom_list *rtdcom; | |
ddee627c | 1084 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
2e5894d7 BC |
1085 | struct snd_soc_dai *codec_dai; |
1086 | int i, ret; | |
1087 | ||
1088 | for (i = 0; i < rtd->num_codecs; i++) { | |
1089 | codec_dai = rtd->codec_dais[i]; | |
9900a422 | 1090 | if (codec_dai->driver->ops->trigger) { |
2e5894d7 BC |
1091 | ret = codec_dai->driver->ops->trigger(substream, |
1092 | cmd, codec_dai); | |
1093 | if (ret < 0) | |
1094 | return ret; | |
1095 | } | |
ddee627c LG |
1096 | } |
1097 | ||
b8135864 KM |
1098 | for_each_rtdcom(rtd, rtdcom) { |
1099 | component = rtdcom->component; | |
1100 | ||
b8135864 KM |
1101 | if (!component->driver->ops || |
1102 | !component->driver->ops->trigger) | |
1103 | continue; | |
1104 | ||
1105 | ret = component->driver->ops->trigger(substream, cmd); | |
1106 | if (ret < 0) | |
1107 | return ret; | |
1108 | } | |
1109 | ||
9900a422 | 1110 | if (cpu_dai->driver->ops->trigger) { |
ddee627c LG |
1111 | ret = cpu_dai->driver->ops->trigger(substream, cmd, cpu_dai); |
1112 | if (ret < 0) | |
1113 | return ret; | |
1114 | } | |
4792b0db | 1115 | |
75ab9eb6 | 1116 | if (rtd->dai_link->ops->trigger) { |
4792b0db JN |
1117 | ret = rtd->dai_link->ops->trigger(substream, cmd); |
1118 | if (ret < 0) | |
1119 | return ret; | |
1120 | } | |
1121 | ||
ddee627c LG |
1122 | return 0; |
1123 | } | |
1124 | ||
45c0a188 MB |
1125 | static int soc_pcm_bespoke_trigger(struct snd_pcm_substream *substream, |
1126 | int cmd) | |
07bf84aa LG |
1127 | { |
1128 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
07bf84aa | 1129 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
2e5894d7 BC |
1130 | struct snd_soc_dai *codec_dai; |
1131 | int i, ret; | |
1132 | ||
1133 | for (i = 0; i < rtd->num_codecs; i++) { | |
1134 | codec_dai = rtd->codec_dais[i]; | |
9900a422 | 1135 | if (codec_dai->driver->ops->bespoke_trigger) { |
2e5894d7 BC |
1136 | ret = codec_dai->driver->ops->bespoke_trigger(substream, |
1137 | cmd, codec_dai); | |
1138 | if (ret < 0) | |
1139 | return ret; | |
1140 | } | |
07bf84aa LG |
1141 | } |
1142 | ||
9900a422 | 1143 | if (cpu_dai->driver->ops->bespoke_trigger) { |
07bf84aa LG |
1144 | ret = cpu_dai->driver->ops->bespoke_trigger(substream, cmd, cpu_dai); |
1145 | if (ret < 0) | |
1146 | return ret; | |
1147 | } | |
1148 | return 0; | |
1149 | } | |
ddee627c LG |
1150 | /* |
1151 | * soc level wrapper for pointer callback | |
ef050bec | 1152 | * If cpu_dai, codec_dai, component driver has the delay callback, then |
ddee627c LG |
1153 | * the runtime->delay will be updated accordingly. |
1154 | */ | |
1155 | static snd_pcm_uframes_t soc_pcm_pointer(struct snd_pcm_substream *substream) | |
1156 | { | |
1157 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
b8135864 KM |
1158 | struct snd_soc_component *component; |
1159 | struct snd_soc_rtdcom_list *rtdcom; | |
ddee627c | 1160 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
2e5894d7 | 1161 | struct snd_soc_dai *codec_dai; |
ddee627c LG |
1162 | struct snd_pcm_runtime *runtime = substream->runtime; |
1163 | snd_pcm_uframes_t offset = 0; | |
1164 | snd_pcm_sframes_t delay = 0; | |
2e5894d7 BC |
1165 | snd_pcm_sframes_t codec_delay = 0; |
1166 | int i; | |
ddee627c | 1167 | |
b8135864 KM |
1168 | for_each_rtdcom(rtd, rtdcom) { |
1169 | component = rtdcom->component; | |
1170 | ||
b8135864 KM |
1171 | if (!component->driver->ops || |
1172 | !component->driver->ops->pointer) | |
1173 | continue; | |
1174 | ||
1175 | /* FIXME: use 1st pointer */ | |
1176 | offset = component->driver->ops->pointer(substream); | |
1177 | break; | |
1178 | } | |
1179 | ||
9900a422 | 1180 | if (cpu_dai->driver->ops->delay) |
ddee627c LG |
1181 | delay += cpu_dai->driver->ops->delay(substream, cpu_dai); |
1182 | ||
2e5894d7 BC |
1183 | for (i = 0; i < rtd->num_codecs; i++) { |
1184 | codec_dai = rtd->codec_dais[i]; | |
9900a422 | 1185 | if (codec_dai->driver->ops->delay) |
2e5894d7 BC |
1186 | codec_delay = max(codec_delay, |
1187 | codec_dai->driver->ops->delay(substream, | |
1188 | codec_dai)); | |
1189 | } | |
1190 | delay += codec_delay; | |
ddee627c | 1191 | |
ddee627c LG |
1192 | runtime->delay = delay; |
1193 | ||
1194 | return offset; | |
1195 | } | |
1196 | ||
01d7584c LG |
1197 | /* connect a FE and BE */ |
1198 | static int dpcm_be_connect(struct snd_soc_pcm_runtime *fe, | |
1199 | struct snd_soc_pcm_runtime *be, int stream) | |
1200 | { | |
1201 | struct snd_soc_dpcm *dpcm; | |
1202 | ||
1203 | /* only add new dpcms */ | |
1204 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { | |
1205 | if (dpcm->be == be && dpcm->fe == fe) | |
1206 | return 0; | |
1207 | } | |
1208 | ||
1209 | dpcm = kzalloc(sizeof(struct snd_soc_dpcm), GFP_KERNEL); | |
1210 | if (!dpcm) | |
1211 | return -ENOMEM; | |
1212 | ||
1213 | dpcm->be = be; | |
1214 | dpcm->fe = fe; | |
1215 | be->dpcm[stream].runtime = fe->dpcm[stream].runtime; | |
1216 | dpcm->state = SND_SOC_DPCM_LINK_STATE_NEW; | |
1217 | list_add(&dpcm->list_be, &fe->dpcm[stream].be_clients); | |
1218 | list_add(&dpcm->list_fe, &be->dpcm[stream].fe_clients); | |
1219 | ||
7cc302d2 | 1220 | dev_dbg(fe->dev, "connected new DPCM %s path %s %s %s\n", |
01d7584c LG |
1221 | stream ? "capture" : "playback", fe->dai_link->name, |
1222 | stream ? "<-" : "->", be->dai_link->name); | |
1223 | ||
f86dcef8 | 1224 | #ifdef CONFIG_DEBUG_FS |
6553bf06 LPC |
1225 | if (fe->debugfs_dpcm_root) |
1226 | dpcm->debugfs_state = debugfs_create_u32(be->dai_link->name, 0644, | |
1227 | fe->debugfs_dpcm_root, &dpcm->state); | |
f86dcef8 | 1228 | #endif |
01d7584c LG |
1229 | return 1; |
1230 | } | |
1231 | ||
1232 | /* reparent a BE onto another FE */ | |
1233 | static void dpcm_be_reparent(struct snd_soc_pcm_runtime *fe, | |
1234 | struct snd_soc_pcm_runtime *be, int stream) | |
1235 | { | |
1236 | struct snd_soc_dpcm *dpcm; | |
1237 | struct snd_pcm_substream *fe_substream, *be_substream; | |
1238 | ||
1239 | /* reparent if BE is connected to other FEs */ | |
1240 | if (!be->dpcm[stream].users) | |
1241 | return; | |
1242 | ||
1243 | be_substream = snd_soc_dpcm_get_substream(be, stream); | |
1244 | ||
1245 | list_for_each_entry(dpcm, &be->dpcm[stream].fe_clients, list_fe) { | |
1246 | if (dpcm->fe == fe) | |
1247 | continue; | |
1248 | ||
7cc302d2 | 1249 | dev_dbg(fe->dev, "reparent %s path %s %s %s\n", |
01d7584c LG |
1250 | stream ? "capture" : "playback", |
1251 | dpcm->fe->dai_link->name, | |
1252 | stream ? "<-" : "->", dpcm->be->dai_link->name); | |
1253 | ||
1254 | fe_substream = snd_soc_dpcm_get_substream(dpcm->fe, stream); | |
1255 | be_substream->runtime = fe_substream->runtime; | |
1256 | break; | |
1257 | } | |
1258 | } | |
1259 | ||
1260 | /* disconnect a BE and FE */ | |
23607025 | 1261 | void dpcm_be_disconnect(struct snd_soc_pcm_runtime *fe, int stream) |
01d7584c LG |
1262 | { |
1263 | struct snd_soc_dpcm *dpcm, *d; | |
1264 | ||
1265 | list_for_each_entry_safe(dpcm, d, &fe->dpcm[stream].be_clients, list_be) { | |
103d84a3 | 1266 | dev_dbg(fe->dev, "ASoC: BE %s disconnect check for %s\n", |
01d7584c LG |
1267 | stream ? "capture" : "playback", |
1268 | dpcm->be->dai_link->name); | |
1269 | ||
1270 | if (dpcm->state != SND_SOC_DPCM_LINK_STATE_FREE) | |
1271 | continue; | |
1272 | ||
7cc302d2 | 1273 | dev_dbg(fe->dev, "freed DSP %s path %s %s %s\n", |
01d7584c LG |
1274 | stream ? "capture" : "playback", fe->dai_link->name, |
1275 | stream ? "<-" : "->", dpcm->be->dai_link->name); | |
1276 | ||
1277 | /* BEs still alive need new FE */ | |
1278 | dpcm_be_reparent(fe, dpcm->be, stream); | |
1279 | ||
f86dcef8 LG |
1280 | #ifdef CONFIG_DEBUG_FS |
1281 | debugfs_remove(dpcm->debugfs_state); | |
1282 | #endif | |
01d7584c LG |
1283 | list_del(&dpcm->list_be); |
1284 | list_del(&dpcm->list_fe); | |
1285 | kfree(dpcm); | |
1286 | } | |
1287 | } | |
1288 | ||
1289 | /* get BE for DAI widget and stream */ | |
1290 | static struct snd_soc_pcm_runtime *dpcm_get_be(struct snd_soc_card *card, | |
1291 | struct snd_soc_dapm_widget *widget, int stream) | |
1292 | { | |
1293 | struct snd_soc_pcm_runtime *be; | |
1a497983 | 1294 | int i; |
01d7584c | 1295 | |
3c146465 LG |
1296 | dev_dbg(card->dev, "ASoC: find BE for widget %s\n", widget->name); |
1297 | ||
01d7584c | 1298 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) { |
1a497983 | 1299 | list_for_each_entry(be, &card->rtd_list, list) { |
01d7584c | 1300 | |
35ea0655 LG |
1301 | if (!be->dai_link->no_pcm) |
1302 | continue; | |
1303 | ||
3c146465 LG |
1304 | dev_dbg(card->dev, "ASoC: try BE : %s\n", |
1305 | be->cpu_dai->playback_widget ? | |
1306 | be->cpu_dai->playback_widget->name : "(not set)"); | |
1307 | ||
2e5894d7 | 1308 | if (be->cpu_dai->playback_widget == widget) |
01d7584c | 1309 | return be; |
2e5894d7 | 1310 | |
1a497983 ML |
1311 | for (i = 0; i < be->num_codecs; i++) { |
1312 | struct snd_soc_dai *dai = be->codec_dais[i]; | |
2e5894d7 BC |
1313 | if (dai->playback_widget == widget) |
1314 | return be; | |
1315 | } | |
01d7584c LG |
1316 | } |
1317 | } else { | |
1318 | ||
1a497983 | 1319 | list_for_each_entry(be, &card->rtd_list, list) { |
01d7584c | 1320 | |
35ea0655 LG |
1321 | if (!be->dai_link->no_pcm) |
1322 | continue; | |
1323 | ||
3c146465 LG |
1324 | dev_dbg(card->dev, "ASoC: try BE %s\n", |
1325 | be->cpu_dai->capture_widget ? | |
1326 | be->cpu_dai->capture_widget->name : "(not set)"); | |
1327 | ||
2e5894d7 | 1328 | if (be->cpu_dai->capture_widget == widget) |
01d7584c | 1329 | return be; |
2e5894d7 | 1330 | |
1a497983 ML |
1331 | for (i = 0; i < be->num_codecs; i++) { |
1332 | struct snd_soc_dai *dai = be->codec_dais[i]; | |
2e5894d7 BC |
1333 | if (dai->capture_widget == widget) |
1334 | return be; | |
1335 | } | |
01d7584c LG |
1336 | } |
1337 | } | |
1338 | ||
3c146465 | 1339 | /* dai link name and stream name set correctly ? */ |
103d84a3 | 1340 | dev_err(card->dev, "ASoC: can't get %s BE for %s\n", |
01d7584c LG |
1341 | stream ? "capture" : "playback", widget->name); |
1342 | return NULL; | |
1343 | } | |
1344 | ||
1345 | static inline struct snd_soc_dapm_widget * | |
37018610 | 1346 | dai_get_widget(struct snd_soc_dai *dai, int stream) |
01d7584c LG |
1347 | { |
1348 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) | |
37018610 | 1349 | return dai->playback_widget; |
01d7584c | 1350 | else |
37018610 | 1351 | return dai->capture_widget; |
01d7584c LG |
1352 | } |
1353 | ||
1354 | static int widget_in_list(struct snd_soc_dapm_widget_list *list, | |
1355 | struct snd_soc_dapm_widget *widget) | |
1356 | { | |
1357 | int i; | |
1358 | ||
1359 | for (i = 0; i < list->num_widgets; i++) { | |
1360 | if (widget == list->widgets[i]) | |
1361 | return 1; | |
1362 | } | |
1363 | ||
1364 | return 0; | |
1365 | } | |
1366 | ||
5fdd022c PS |
1367 | static bool dpcm_end_walk_at_be(struct snd_soc_dapm_widget *widget, |
1368 | enum snd_soc_dapm_direction dir) | |
1369 | { | |
1370 | struct snd_soc_card *card = widget->dapm->card; | |
1371 | struct snd_soc_pcm_runtime *rtd; | |
1372 | int i; | |
1373 | ||
1374 | if (dir == SND_SOC_DAPM_DIR_OUT) { | |
1375 | list_for_each_entry(rtd, &card->rtd_list, list) { | |
1376 | if (!rtd->dai_link->no_pcm) | |
1377 | continue; | |
1378 | ||
1379 | if (rtd->cpu_dai->playback_widget == widget) | |
1380 | return true; | |
1381 | ||
1382 | for (i = 0; i < rtd->num_codecs; ++i) { | |
1383 | struct snd_soc_dai *dai = rtd->codec_dais[i]; | |
1384 | if (dai->playback_widget == widget) | |
1385 | return true; | |
1386 | } | |
1387 | } | |
1388 | } else { /* SND_SOC_DAPM_DIR_IN */ | |
1389 | list_for_each_entry(rtd, &card->rtd_list, list) { | |
1390 | if (!rtd->dai_link->no_pcm) | |
1391 | continue; | |
1392 | ||
1393 | if (rtd->cpu_dai->capture_widget == widget) | |
1394 | return true; | |
1395 | ||
1396 | for (i = 0; i < rtd->num_codecs; ++i) { | |
1397 | struct snd_soc_dai *dai = rtd->codec_dais[i]; | |
1398 | if (dai->capture_widget == widget) | |
1399 | return true; | |
1400 | } | |
1401 | } | |
1402 | } | |
1403 | ||
1404 | return false; | |
1405 | } | |
1406 | ||
23607025 | 1407 | int dpcm_path_get(struct snd_soc_pcm_runtime *fe, |
1ce43acf | 1408 | int stream, struct snd_soc_dapm_widget_list **list) |
01d7584c LG |
1409 | { |
1410 | struct snd_soc_dai *cpu_dai = fe->cpu_dai; | |
01d7584c LG |
1411 | int paths; |
1412 | ||
01d7584c | 1413 | /* get number of valid DAI paths and their widgets */ |
6742064a | 1414 | paths = snd_soc_dapm_dai_get_connected_widgets(cpu_dai, stream, list, |
5fdd022c | 1415 | dpcm_end_walk_at_be); |
01d7584c | 1416 | |
103d84a3 | 1417 | dev_dbg(fe->dev, "ASoC: found %d audio %s paths\n", paths, |
01d7584c LG |
1418 | stream ? "capture" : "playback"); |
1419 | ||
01d7584c LG |
1420 | return paths; |
1421 | } | |
1422 | ||
01d7584c LG |
1423 | static int dpcm_prune_paths(struct snd_soc_pcm_runtime *fe, int stream, |
1424 | struct snd_soc_dapm_widget_list **list_) | |
1425 | { | |
1426 | struct snd_soc_dpcm *dpcm; | |
1427 | struct snd_soc_dapm_widget_list *list = *list_; | |
1428 | struct snd_soc_dapm_widget *widget; | |
1429 | int prune = 0; | |
1430 | ||
1431 | /* Destroy any old FE <--> BE connections */ | |
1432 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { | |
2e5894d7 | 1433 | unsigned int i; |
01d7584c LG |
1434 | |
1435 | /* is there a valid CPU DAI widget for this BE */ | |
37018610 | 1436 | widget = dai_get_widget(dpcm->be->cpu_dai, stream); |
01d7584c LG |
1437 | |
1438 | /* prune the BE if it's no longer in our active list */ | |
1439 | if (widget && widget_in_list(list, widget)) | |
1440 | continue; | |
1441 | ||
1442 | /* is there a valid CODEC DAI widget for this BE */ | |
2e5894d7 BC |
1443 | for (i = 0; i < dpcm->be->num_codecs; i++) { |
1444 | struct snd_soc_dai *dai = dpcm->be->codec_dais[i]; | |
1445 | widget = dai_get_widget(dai, stream); | |
01d7584c | 1446 | |
2e5894d7 BC |
1447 | /* prune the BE if it's no longer in our active list */ |
1448 | if (widget && widget_in_list(list, widget)) | |
1449 | continue; | |
1450 | } | |
01d7584c | 1451 | |
103d84a3 | 1452 | dev_dbg(fe->dev, "ASoC: pruning %s BE %s for %s\n", |
01d7584c LG |
1453 | stream ? "capture" : "playback", |
1454 | dpcm->be->dai_link->name, fe->dai_link->name); | |
1455 | dpcm->state = SND_SOC_DPCM_LINK_STATE_FREE; | |
1456 | dpcm->be->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_BE; | |
1457 | prune++; | |
1458 | } | |
1459 | ||
103d84a3 | 1460 | dev_dbg(fe->dev, "ASoC: found %d old BE paths for pruning\n", prune); |
01d7584c LG |
1461 | return prune; |
1462 | } | |
1463 | ||
1464 | static int dpcm_add_paths(struct snd_soc_pcm_runtime *fe, int stream, | |
1465 | struct snd_soc_dapm_widget_list **list_) | |
1466 | { | |
1467 | struct snd_soc_card *card = fe->card; | |
1468 | struct snd_soc_dapm_widget_list *list = *list_; | |
1469 | struct snd_soc_pcm_runtime *be; | |
1470 | int i, new = 0, err; | |
1471 | ||
1472 | /* Create any new FE <--> BE connections */ | |
1473 | for (i = 0; i < list->num_widgets; i++) { | |
1474 | ||
4616274d MB |
1475 | switch (list->widgets[i]->id) { |
1476 | case snd_soc_dapm_dai_in: | |
c5b8540d KC |
1477 | if (stream != SNDRV_PCM_STREAM_PLAYBACK) |
1478 | continue; | |
1479 | break; | |
4616274d | 1480 | case snd_soc_dapm_dai_out: |
c5b8540d KC |
1481 | if (stream != SNDRV_PCM_STREAM_CAPTURE) |
1482 | continue; | |
4616274d MB |
1483 | break; |
1484 | default: | |
01d7584c | 1485 | continue; |
4616274d | 1486 | } |
01d7584c LG |
1487 | |
1488 | /* is there a valid BE rtd for this widget */ | |
1489 | be = dpcm_get_be(card, list->widgets[i], stream); | |
1490 | if (!be) { | |
103d84a3 | 1491 | dev_err(fe->dev, "ASoC: no BE found for %s\n", |
01d7584c LG |
1492 | list->widgets[i]->name); |
1493 | continue; | |
1494 | } | |
1495 | ||
1496 | /* make sure BE is a real BE */ | |
1497 | if (!be->dai_link->no_pcm) | |
1498 | continue; | |
1499 | ||
1500 | /* don't connect if FE is not running */ | |
23607025 | 1501 | if (!fe->dpcm[stream].runtime && !fe->fe_compr) |
01d7584c LG |
1502 | continue; |
1503 | ||
1504 | /* newly connected FE and BE */ | |
1505 | err = dpcm_be_connect(fe, be, stream); | |
1506 | if (err < 0) { | |
103d84a3 | 1507 | dev_err(fe->dev, "ASoC: can't connect %s\n", |
01d7584c LG |
1508 | list->widgets[i]->name); |
1509 | break; | |
1510 | } else if (err == 0) /* already connected */ | |
1511 | continue; | |
1512 | ||
1513 | /* new */ | |
1514 | be->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_BE; | |
1515 | new++; | |
1516 | } | |
1517 | ||
103d84a3 | 1518 | dev_dbg(fe->dev, "ASoC: found %d new BE paths\n", new); |
01d7584c LG |
1519 | return new; |
1520 | } | |
1521 | ||
1522 | /* | |
1523 | * Find the corresponding BE DAIs that source or sink audio to this | |
1524 | * FE substream. | |
1525 | */ | |
23607025 | 1526 | int dpcm_process_paths(struct snd_soc_pcm_runtime *fe, |
01d7584c LG |
1527 | int stream, struct snd_soc_dapm_widget_list **list, int new) |
1528 | { | |
1529 | if (new) | |
1530 | return dpcm_add_paths(fe, stream, list); | |
1531 | else | |
1532 | return dpcm_prune_paths(fe, stream, list); | |
1533 | } | |
1534 | ||
23607025 | 1535 | void dpcm_clear_pending_state(struct snd_soc_pcm_runtime *fe, int stream) |
01d7584c LG |
1536 | { |
1537 | struct snd_soc_dpcm *dpcm; | |
1538 | ||
1539 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) | |
1540 | dpcm->be->dpcm[stream].runtime_update = | |
1541 | SND_SOC_DPCM_UPDATE_NO; | |
1542 | } | |
1543 | ||
1544 | static void dpcm_be_dai_startup_unwind(struct snd_soc_pcm_runtime *fe, | |
1545 | int stream) | |
1546 | { | |
1547 | struct snd_soc_dpcm *dpcm; | |
1548 | ||
1549 | /* disable any enabled and non active backends */ | |
1550 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { | |
1551 | ||
1552 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
1553 | struct snd_pcm_substream *be_substream = | |
1554 | snd_soc_dpcm_get_substream(be, stream); | |
1555 | ||
1556 | if (be->dpcm[stream].users == 0) | |
103d84a3 | 1557 | dev_err(be->dev, "ASoC: no users %s at close - state %d\n", |
01d7584c LG |
1558 | stream ? "capture" : "playback", |
1559 | be->dpcm[stream].state); | |
1560 | ||
1561 | if (--be->dpcm[stream].users != 0) | |
1562 | continue; | |
1563 | ||
1564 | if (be->dpcm[stream].state != SND_SOC_DPCM_STATE_OPEN) | |
1565 | continue; | |
1566 | ||
1567 | soc_pcm_close(be_substream); | |
1568 | be_substream->runtime = NULL; | |
1569 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_CLOSE; | |
1570 | } | |
1571 | } | |
1572 | ||
23607025 | 1573 | int dpcm_be_dai_startup(struct snd_soc_pcm_runtime *fe, int stream) |
01d7584c LG |
1574 | { |
1575 | struct snd_soc_dpcm *dpcm; | |
1576 | int err, count = 0; | |
1577 | ||
1578 | /* only startup BE DAIs that are either sinks or sources to this FE DAI */ | |
1579 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { | |
1580 | ||
1581 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
1582 | struct snd_pcm_substream *be_substream = | |
1583 | snd_soc_dpcm_get_substream(be, stream); | |
1584 | ||
2062b4c5 RKAL |
1585 | if (!be_substream) { |
1586 | dev_err(be->dev, "ASoC: no backend %s stream\n", | |
1587 | stream ? "capture" : "playback"); | |
1588 | continue; | |
1589 | } | |
1590 | ||
01d7584c LG |
1591 | /* is this op for this BE ? */ |
1592 | if (!snd_soc_dpcm_be_can_update(fe, be, stream)) | |
1593 | continue; | |
1594 | ||
1595 | /* first time the dpcm is open ? */ | |
1596 | if (be->dpcm[stream].users == DPCM_MAX_BE_USERS) | |
103d84a3 | 1597 | dev_err(be->dev, "ASoC: too many users %s at open %d\n", |
01d7584c LG |
1598 | stream ? "capture" : "playback", |
1599 | be->dpcm[stream].state); | |
1600 | ||
1601 | if (be->dpcm[stream].users++ != 0) | |
1602 | continue; | |
1603 | ||
1604 | if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_NEW) && | |
1605 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_CLOSE)) | |
1606 | continue; | |
1607 | ||
2062b4c5 RKAL |
1608 | dev_dbg(be->dev, "ASoC: open %s BE %s\n", |
1609 | stream ? "capture" : "playback", be->dai_link->name); | |
01d7584c LG |
1610 | |
1611 | be_substream->runtime = be->dpcm[stream].runtime; | |
1612 | err = soc_pcm_open(be_substream); | |
1613 | if (err < 0) { | |
103d84a3 | 1614 | dev_err(be->dev, "ASoC: BE open failed %d\n", err); |
01d7584c LG |
1615 | be->dpcm[stream].users--; |
1616 | if (be->dpcm[stream].users < 0) | |
103d84a3 | 1617 | dev_err(be->dev, "ASoC: no users %s at unwind %d\n", |
01d7584c LG |
1618 | stream ? "capture" : "playback", |
1619 | be->dpcm[stream].state); | |
1620 | ||
1621 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_CLOSE; | |
1622 | goto unwind; | |
1623 | } | |
1624 | ||
1625 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_OPEN; | |
1626 | count++; | |
1627 | } | |
1628 | ||
1629 | return count; | |
1630 | ||
1631 | unwind: | |
1632 | /* disable any enabled and non active backends */ | |
1633 | list_for_each_entry_continue_reverse(dpcm, &fe->dpcm[stream].be_clients, list_be) { | |
1634 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
1635 | struct snd_pcm_substream *be_substream = | |
1636 | snd_soc_dpcm_get_substream(be, stream); | |
1637 | ||
1638 | if (!snd_soc_dpcm_be_can_update(fe, be, stream)) | |
1639 | continue; | |
1640 | ||
1641 | if (be->dpcm[stream].users == 0) | |
103d84a3 | 1642 | dev_err(be->dev, "ASoC: no users %s at close %d\n", |
01d7584c LG |
1643 | stream ? "capture" : "playback", |
1644 | be->dpcm[stream].state); | |
1645 | ||
1646 | if (--be->dpcm[stream].users != 0) | |
1647 | continue; | |
1648 | ||
1649 | if (be->dpcm[stream].state != SND_SOC_DPCM_STATE_OPEN) | |
1650 | continue; | |
1651 | ||
1652 | soc_pcm_close(be_substream); | |
1653 | be_substream->runtime = NULL; | |
1654 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_CLOSE; | |
1655 | } | |
1656 | ||
1657 | return err; | |
1658 | } | |
1659 | ||
08ae9b45 | 1660 | static void dpcm_init_runtime_hw(struct snd_pcm_runtime *runtime, |
b073ed4e KM |
1661 | struct snd_soc_pcm_stream *stream, |
1662 | u64 formats) | |
08ae9b45 LPC |
1663 | { |
1664 | runtime->hw.rate_min = stream->rate_min; | |
1665 | runtime->hw.rate_max = stream->rate_max; | |
1666 | runtime->hw.channels_min = stream->channels_min; | |
1667 | runtime->hw.channels_max = stream->channels_max; | |
002220a9 | 1668 | if (runtime->hw.formats) |
b073ed4e | 1669 | runtime->hw.formats &= formats & stream->formats; |
002220a9 | 1670 | else |
b073ed4e | 1671 | runtime->hw.formats = formats & stream->formats; |
08ae9b45 LPC |
1672 | runtime->hw.rates = stream->rates; |
1673 | } | |
1674 | ||
b073ed4e KM |
1675 | static u64 dpcm_runtime_base_format(struct snd_pcm_substream *substream) |
1676 | { | |
1677 | struct snd_soc_pcm_runtime *fe = substream->private_data; | |
1678 | struct snd_soc_dpcm *dpcm; | |
1679 | u64 formats = ULLONG_MAX; | |
1680 | int stream = substream->stream; | |
1681 | ||
1682 | if (!fe->dai_link->dpcm_merged_format) | |
1683 | return formats; | |
1684 | ||
1685 | /* | |
1686 | * It returns merged BE codec format | |
1687 | * if FE want to use it (= dpcm_merged_format) | |
1688 | */ | |
1689 | ||
1690 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { | |
1691 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
1692 | struct snd_soc_dai_driver *codec_dai_drv; | |
1693 | struct snd_soc_pcm_stream *codec_stream; | |
1694 | int i; | |
1695 | ||
1696 | for (i = 0; i < be->num_codecs; i++) { | |
1697 | codec_dai_drv = be->codec_dais[i]->driver; | |
1698 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) | |
1699 | codec_stream = &codec_dai_drv->playback; | |
1700 | else | |
1701 | codec_stream = &codec_dai_drv->capture; | |
1702 | ||
1703 | formats &= codec_stream->formats; | |
1704 | } | |
1705 | } | |
1706 | ||
1707 | return formats; | |
1708 | } | |
1709 | ||
45c0a188 | 1710 | static void dpcm_set_fe_runtime(struct snd_pcm_substream *substream) |
01d7584c LG |
1711 | { |
1712 | struct snd_pcm_runtime *runtime = substream->runtime; | |
1713 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
1714 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
1715 | struct snd_soc_dai_driver *cpu_dai_drv = cpu_dai->driver; | |
b073ed4e | 1716 | u64 format = dpcm_runtime_base_format(substream); |
01d7584c | 1717 | |
08ae9b45 | 1718 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) |
b073ed4e | 1719 | dpcm_init_runtime_hw(runtime, &cpu_dai_drv->playback, format); |
08ae9b45 | 1720 | else |
b073ed4e | 1721 | dpcm_init_runtime_hw(runtime, &cpu_dai_drv->capture, format); |
01d7584c LG |
1722 | } |
1723 | ||
ea9d0d77 TI |
1724 | static int dpcm_fe_dai_do_trigger(struct snd_pcm_substream *substream, int cmd); |
1725 | ||
1726 | /* Set FE's runtime_update state; the state is protected via PCM stream lock | |
1727 | * for avoiding the race with trigger callback. | |
1728 | * If the state is unset and a trigger is pending while the previous operation, | |
1729 | * process the pending trigger action here. | |
1730 | */ | |
1731 | static void dpcm_set_fe_update_state(struct snd_soc_pcm_runtime *fe, | |
1732 | int stream, enum snd_soc_dpcm_update state) | |
1733 | { | |
1734 | struct snd_pcm_substream *substream = | |
1735 | snd_soc_dpcm_get_substream(fe, stream); | |
1736 | ||
1737 | snd_pcm_stream_lock_irq(substream); | |
1738 | if (state == SND_SOC_DPCM_UPDATE_NO && fe->dpcm[stream].trigger_pending) { | |
1739 | dpcm_fe_dai_do_trigger(substream, | |
1740 | fe->dpcm[stream].trigger_pending - 1); | |
1741 | fe->dpcm[stream].trigger_pending = 0; | |
1742 | } | |
1743 | fe->dpcm[stream].runtime_update = state; | |
1744 | snd_pcm_stream_unlock_irq(substream); | |
1745 | } | |
1746 | ||
906c7d69 PL |
1747 | static int dpcm_apply_symmetry(struct snd_pcm_substream *fe_substream, |
1748 | int stream) | |
1749 | { | |
1750 | struct snd_soc_dpcm *dpcm; | |
1751 | struct snd_soc_pcm_runtime *fe = fe_substream->private_data; | |
1752 | struct snd_soc_dai *fe_cpu_dai = fe->cpu_dai; | |
1753 | int err; | |
1754 | ||
1755 | /* apply symmetry for FE */ | |
1756 | if (soc_pcm_has_symmetry(fe_substream)) | |
1757 | fe_substream->runtime->hw.info |= SNDRV_PCM_INFO_JOINT_DUPLEX; | |
1758 | ||
1759 | /* Symmetry only applies if we've got an active stream. */ | |
1760 | if (fe_cpu_dai->active) { | |
1761 | err = soc_pcm_apply_symmetry(fe_substream, fe_cpu_dai); | |
1762 | if (err < 0) | |
1763 | return err; | |
1764 | } | |
1765 | ||
1766 | /* apply symmetry for BE */ | |
1767 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { | |
1768 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
1769 | struct snd_pcm_substream *be_substream = | |
1770 | snd_soc_dpcm_get_substream(be, stream); | |
1771 | struct snd_soc_pcm_runtime *rtd = be_substream->private_data; | |
1772 | int i; | |
1773 | ||
f1176614 JK |
1774 | if (rtd->dai_link->be_hw_params_fixup) |
1775 | continue; | |
1776 | ||
906c7d69 PL |
1777 | if (soc_pcm_has_symmetry(be_substream)) |
1778 | be_substream->runtime->hw.info |= SNDRV_PCM_INFO_JOINT_DUPLEX; | |
1779 | ||
1780 | /* Symmetry only applies if we've got an active stream. */ | |
1781 | if (rtd->cpu_dai->active) { | |
99bcedbd KCC |
1782 | err = soc_pcm_apply_symmetry(fe_substream, |
1783 | rtd->cpu_dai); | |
906c7d69 PL |
1784 | if (err < 0) |
1785 | return err; | |
1786 | } | |
1787 | ||
1788 | for (i = 0; i < rtd->num_codecs; i++) { | |
1789 | if (rtd->codec_dais[i]->active) { | |
99bcedbd | 1790 | err = soc_pcm_apply_symmetry(fe_substream, |
906c7d69 PL |
1791 | rtd->codec_dais[i]); |
1792 | if (err < 0) | |
1793 | return err; | |
1794 | } | |
1795 | } | |
1796 | } | |
1797 | ||
1798 | return 0; | |
1799 | } | |
1800 | ||
01d7584c LG |
1801 | static int dpcm_fe_dai_startup(struct snd_pcm_substream *fe_substream) |
1802 | { | |
1803 | struct snd_soc_pcm_runtime *fe = fe_substream->private_data; | |
1804 | struct snd_pcm_runtime *runtime = fe_substream->runtime; | |
1805 | int stream = fe_substream->stream, ret = 0; | |
1806 | ||
ea9d0d77 | 1807 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_FE); |
01d7584c LG |
1808 | |
1809 | ret = dpcm_be_dai_startup(fe, fe_substream->stream); | |
1810 | if (ret < 0) { | |
103d84a3 | 1811 | dev_err(fe->dev,"ASoC: failed to start some BEs %d\n", ret); |
01d7584c LG |
1812 | goto be_err; |
1813 | } | |
1814 | ||
103d84a3 | 1815 | dev_dbg(fe->dev, "ASoC: open FE %s\n", fe->dai_link->name); |
01d7584c LG |
1816 | |
1817 | /* start the DAI frontend */ | |
1818 | ret = soc_pcm_open(fe_substream); | |
1819 | if (ret < 0) { | |
103d84a3 | 1820 | dev_err(fe->dev,"ASoC: failed to start FE %d\n", ret); |
01d7584c LG |
1821 | goto unwind; |
1822 | } | |
1823 | ||
1824 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_OPEN; | |
1825 | ||
1826 | dpcm_set_fe_runtime(fe_substream); | |
1827 | snd_pcm_limit_hw_rates(runtime); | |
1828 | ||
906c7d69 PL |
1829 | ret = dpcm_apply_symmetry(fe_substream, stream); |
1830 | if (ret < 0) { | |
1831 | dev_err(fe->dev, "ASoC: failed to apply dpcm symmetry %d\n", | |
1832 | ret); | |
1833 | goto unwind; | |
1834 | } | |
1835 | ||
ea9d0d77 | 1836 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_NO); |
01d7584c LG |
1837 | return 0; |
1838 | ||
1839 | unwind: | |
1840 | dpcm_be_dai_startup_unwind(fe, fe_substream->stream); | |
1841 | be_err: | |
ea9d0d77 | 1842 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_NO); |
01d7584c LG |
1843 | return ret; |
1844 | } | |
1845 | ||
23607025 | 1846 | int dpcm_be_dai_shutdown(struct snd_soc_pcm_runtime *fe, int stream) |
01d7584c LG |
1847 | { |
1848 | struct snd_soc_dpcm *dpcm; | |
1849 | ||
1850 | /* only shutdown BEs that are either sinks or sources to this FE DAI */ | |
1851 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { | |
1852 | ||
1853 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
1854 | struct snd_pcm_substream *be_substream = | |
1855 | snd_soc_dpcm_get_substream(be, stream); | |
1856 | ||
1857 | /* is this op for this BE ? */ | |
1858 | if (!snd_soc_dpcm_be_can_update(fe, be, stream)) | |
1859 | continue; | |
1860 | ||
1861 | if (be->dpcm[stream].users == 0) | |
103d84a3 | 1862 | dev_err(be->dev, "ASoC: no users %s at close - state %d\n", |
01d7584c LG |
1863 | stream ? "capture" : "playback", |
1864 | be->dpcm[stream].state); | |
1865 | ||
1866 | if (--be->dpcm[stream].users != 0) | |
1867 | continue; | |
1868 | ||
1869 | if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_FREE) && | |
9c0ac70a KCC |
1870 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_OPEN)) { |
1871 | soc_pcm_hw_free(be_substream); | |
1872 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_HW_FREE; | |
1873 | } | |
01d7584c | 1874 | |
103d84a3 | 1875 | dev_dbg(be->dev, "ASoC: close BE %s\n", |
94d215cc | 1876 | be->dai_link->name); |
01d7584c LG |
1877 | |
1878 | soc_pcm_close(be_substream); | |
1879 | be_substream->runtime = NULL; | |
1880 | ||
1881 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_CLOSE; | |
1882 | } | |
1883 | return 0; | |
1884 | } | |
1885 | ||
1886 | static int dpcm_fe_dai_shutdown(struct snd_pcm_substream *substream) | |
1887 | { | |
1888 | struct snd_soc_pcm_runtime *fe = substream->private_data; | |
1889 | int stream = substream->stream; | |
1890 | ||
ea9d0d77 | 1891 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_FE); |
01d7584c LG |
1892 | |
1893 | /* shutdown the BEs */ | |
1894 | dpcm_be_dai_shutdown(fe, substream->stream); | |
1895 | ||
103d84a3 | 1896 | dev_dbg(fe->dev, "ASoC: close FE %s\n", fe->dai_link->name); |
01d7584c LG |
1897 | |
1898 | /* now shutdown the frontend */ | |
1899 | soc_pcm_close(substream); | |
1900 | ||
1901 | /* run the stream event for each BE */ | |
1902 | dpcm_dapm_stream_event(fe, stream, SND_SOC_DAPM_STREAM_STOP); | |
1903 | ||
1904 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_CLOSE; | |
ea9d0d77 | 1905 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_NO); |
01d7584c LG |
1906 | return 0; |
1907 | } | |
1908 | ||
23607025 | 1909 | int dpcm_be_dai_hw_free(struct snd_soc_pcm_runtime *fe, int stream) |
01d7584c LG |
1910 | { |
1911 | struct snd_soc_dpcm *dpcm; | |
1912 | ||
1913 | /* only hw_params backends that are either sinks or sources | |
1914 | * to this frontend DAI */ | |
1915 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { | |
1916 | ||
1917 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
1918 | struct snd_pcm_substream *be_substream = | |
1919 | snd_soc_dpcm_get_substream(be, stream); | |
1920 | ||
1921 | /* is this op for this BE ? */ | |
1922 | if (!snd_soc_dpcm_be_can_update(fe, be, stream)) | |
1923 | continue; | |
1924 | ||
1925 | /* only free hw when no longer used - check all FEs */ | |
1926 | if (!snd_soc_dpcm_can_be_free_stop(fe, be, stream)) | |
1927 | continue; | |
1928 | ||
36fba62c QZ |
1929 | /* do not free hw if this BE is used by other FE */ |
1930 | if (be->dpcm[stream].users > 1) | |
1931 | continue; | |
1932 | ||
01d7584c LG |
1933 | if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_PARAMS) && |
1934 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_PREPARE) && | |
1935 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_FREE) && | |
08b27848 | 1936 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_PAUSED) && |
5e82d2be VK |
1937 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_STOP) && |
1938 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_SUSPEND)) | |
01d7584c LG |
1939 | continue; |
1940 | ||
103d84a3 | 1941 | dev_dbg(be->dev, "ASoC: hw_free BE %s\n", |
94d215cc | 1942 | be->dai_link->name); |
01d7584c LG |
1943 | |
1944 | soc_pcm_hw_free(be_substream); | |
1945 | ||
1946 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_HW_FREE; | |
1947 | } | |
1948 | ||
1949 | return 0; | |
1950 | } | |
1951 | ||
45c0a188 | 1952 | static int dpcm_fe_dai_hw_free(struct snd_pcm_substream *substream) |
01d7584c LG |
1953 | { |
1954 | struct snd_soc_pcm_runtime *fe = substream->private_data; | |
1955 | int err, stream = substream->stream; | |
1956 | ||
1957 | mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME); | |
ea9d0d77 | 1958 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_FE); |
01d7584c | 1959 | |
103d84a3 | 1960 | dev_dbg(fe->dev, "ASoC: hw_free FE %s\n", fe->dai_link->name); |
01d7584c LG |
1961 | |
1962 | /* call hw_free on the frontend */ | |
1963 | err = soc_pcm_hw_free(substream); | |
1964 | if (err < 0) | |
103d84a3 | 1965 | dev_err(fe->dev,"ASoC: hw_free FE %s failed\n", |
01d7584c LG |
1966 | fe->dai_link->name); |
1967 | ||
1968 | /* only hw_params backends that are either sinks or sources | |
1969 | * to this frontend DAI */ | |
1970 | err = dpcm_be_dai_hw_free(fe, stream); | |
1971 | ||
1972 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_HW_FREE; | |
ea9d0d77 | 1973 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_NO); |
01d7584c LG |
1974 | |
1975 | mutex_unlock(&fe->card->mutex); | |
1976 | return 0; | |
1977 | } | |
1978 | ||
23607025 | 1979 | int dpcm_be_dai_hw_params(struct snd_soc_pcm_runtime *fe, int stream) |
01d7584c LG |
1980 | { |
1981 | struct snd_soc_dpcm *dpcm; | |
1982 | int ret; | |
1983 | ||
1984 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { | |
1985 | ||
1986 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
1987 | struct snd_pcm_substream *be_substream = | |
1988 | snd_soc_dpcm_get_substream(be, stream); | |
1989 | ||
1990 | /* is this op for this BE ? */ | |
1991 | if (!snd_soc_dpcm_be_can_update(fe, be, stream)) | |
1992 | continue; | |
1993 | ||
01d7584c LG |
1994 | /* copy params for each dpcm */ |
1995 | memcpy(&dpcm->hw_params, &fe->dpcm[stream].hw_params, | |
1996 | sizeof(struct snd_pcm_hw_params)); | |
1997 | ||
1998 | /* perform any hw_params fixups */ | |
1999 | if (be->dai_link->be_hw_params_fixup) { | |
2000 | ret = be->dai_link->be_hw_params_fixup(be, | |
2001 | &dpcm->hw_params); | |
2002 | if (ret < 0) { | |
2003 | dev_err(be->dev, | |
103d84a3 | 2004 | "ASoC: hw_params BE fixup failed %d\n", |
01d7584c LG |
2005 | ret); |
2006 | goto unwind; | |
2007 | } | |
2008 | } | |
2009 | ||
b0639bd2 KM |
2010 | /* only allow hw_params() if no connected FEs are running */ |
2011 | if (!snd_soc_dpcm_can_be_params(fe, be, stream)) | |
2012 | continue; | |
2013 | ||
2014 | if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_OPEN) && | |
2015 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_PARAMS) && | |
2016 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_FREE)) | |
2017 | continue; | |
2018 | ||
2019 | dev_dbg(be->dev, "ASoC: hw_params BE %s\n", | |
94d215cc | 2020 | be->dai_link->name); |
b0639bd2 | 2021 | |
01d7584c LG |
2022 | ret = soc_pcm_hw_params(be_substream, &dpcm->hw_params); |
2023 | if (ret < 0) { | |
2024 | dev_err(dpcm->be->dev, | |
103d84a3 | 2025 | "ASoC: hw_params BE failed %d\n", ret); |
01d7584c LG |
2026 | goto unwind; |
2027 | } | |
2028 | ||
2029 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_HW_PARAMS; | |
2030 | } | |
2031 | return 0; | |
2032 | ||
2033 | unwind: | |
2034 | /* disable any enabled and non active backends */ | |
2035 | list_for_each_entry_continue_reverse(dpcm, &fe->dpcm[stream].be_clients, list_be) { | |
2036 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
2037 | struct snd_pcm_substream *be_substream = | |
2038 | snd_soc_dpcm_get_substream(be, stream); | |
2039 | ||
2040 | if (!snd_soc_dpcm_be_can_update(fe, be, stream)) | |
2041 | continue; | |
2042 | ||
2043 | /* only allow hw_free() if no connected FEs are running */ | |
2044 | if (!snd_soc_dpcm_can_be_free_stop(fe, be, stream)) | |
2045 | continue; | |
2046 | ||
2047 | if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_OPEN) && | |
2048 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_PARAMS) && | |
2049 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_FREE) && | |
2050 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_STOP)) | |
2051 | continue; | |
2052 | ||
2053 | soc_pcm_hw_free(be_substream); | |
2054 | } | |
2055 | ||
2056 | return ret; | |
2057 | } | |
2058 | ||
45c0a188 MB |
2059 | static int dpcm_fe_dai_hw_params(struct snd_pcm_substream *substream, |
2060 | struct snd_pcm_hw_params *params) | |
01d7584c LG |
2061 | { |
2062 | struct snd_soc_pcm_runtime *fe = substream->private_data; | |
2063 | int ret, stream = substream->stream; | |
2064 | ||
2065 | mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME); | |
ea9d0d77 | 2066 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_FE); |
01d7584c LG |
2067 | |
2068 | memcpy(&fe->dpcm[substream->stream].hw_params, params, | |
2069 | sizeof(struct snd_pcm_hw_params)); | |
2070 | ret = dpcm_be_dai_hw_params(fe, substream->stream); | |
2071 | if (ret < 0) { | |
103d84a3 | 2072 | dev_err(fe->dev,"ASoC: hw_params BE failed %d\n", ret); |
01d7584c LG |
2073 | goto out; |
2074 | } | |
2075 | ||
103d84a3 | 2076 | dev_dbg(fe->dev, "ASoC: hw_params FE %s rate %d chan %x fmt %d\n", |
01d7584c LG |
2077 | fe->dai_link->name, params_rate(params), |
2078 | params_channels(params), params_format(params)); | |
2079 | ||
2080 | /* call hw_params on the frontend */ | |
2081 | ret = soc_pcm_hw_params(substream, params); | |
2082 | if (ret < 0) { | |
103d84a3 | 2083 | dev_err(fe->dev,"ASoC: hw_params FE failed %d\n", ret); |
01d7584c LG |
2084 | dpcm_be_dai_hw_free(fe, stream); |
2085 | } else | |
2086 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_HW_PARAMS; | |
2087 | ||
2088 | out: | |
ea9d0d77 | 2089 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_NO); |
01d7584c LG |
2090 | mutex_unlock(&fe->card->mutex); |
2091 | return ret; | |
2092 | } | |
2093 | ||
2094 | static int dpcm_do_trigger(struct snd_soc_dpcm *dpcm, | |
2095 | struct snd_pcm_substream *substream, int cmd) | |
2096 | { | |
2097 | int ret; | |
2098 | ||
103d84a3 | 2099 | dev_dbg(dpcm->be->dev, "ASoC: trigger BE %s cmd %d\n", |
94d215cc | 2100 | dpcm->be->dai_link->name, cmd); |
01d7584c LG |
2101 | |
2102 | ret = soc_pcm_trigger(substream, cmd); | |
2103 | if (ret < 0) | |
103d84a3 | 2104 | dev_err(dpcm->be->dev,"ASoC: trigger BE failed %d\n", ret); |
01d7584c LG |
2105 | |
2106 | return ret; | |
2107 | } | |
2108 | ||
23607025 | 2109 | int dpcm_be_dai_trigger(struct snd_soc_pcm_runtime *fe, int stream, |
45c0a188 | 2110 | int cmd) |
01d7584c LG |
2111 | { |
2112 | struct snd_soc_dpcm *dpcm; | |
2113 | int ret = 0; | |
2114 | ||
2115 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { | |
2116 | ||
2117 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
2118 | struct snd_pcm_substream *be_substream = | |
2119 | snd_soc_dpcm_get_substream(be, stream); | |
2120 | ||
2121 | /* is this op for this BE ? */ | |
2122 | if (!snd_soc_dpcm_be_can_update(fe, be, stream)) | |
2123 | continue; | |
2124 | ||
2125 | switch (cmd) { | |
2126 | case SNDRV_PCM_TRIGGER_START: | |
2127 | if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_PREPARE) && | |
2128 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_STOP)) | |
2129 | continue; | |
2130 | ||
2131 | ret = dpcm_do_trigger(dpcm, be_substream, cmd); | |
2132 | if (ret) | |
2133 | return ret; | |
2134 | ||
2135 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_START; | |
2136 | break; | |
2137 | case SNDRV_PCM_TRIGGER_RESUME: | |
2138 | if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_SUSPEND)) | |
2139 | continue; | |
2140 | ||
2141 | ret = dpcm_do_trigger(dpcm, be_substream, cmd); | |
2142 | if (ret) | |
2143 | return ret; | |
2144 | ||
2145 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_START; | |
2146 | break; | |
2147 | case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: | |
2148 | if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_PAUSED)) | |
2149 | continue; | |
2150 | ||
2151 | ret = dpcm_do_trigger(dpcm, be_substream, cmd); | |
2152 | if (ret) | |
2153 | return ret; | |
2154 | ||
2155 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_START; | |
2156 | break; | |
2157 | case SNDRV_PCM_TRIGGER_STOP: | |
2158 | if (be->dpcm[stream].state != SND_SOC_DPCM_STATE_START) | |
2159 | continue; | |
2160 | ||
2161 | if (!snd_soc_dpcm_can_be_free_stop(fe, be, stream)) | |
2162 | continue; | |
2163 | ||
2164 | ret = dpcm_do_trigger(dpcm, be_substream, cmd); | |
2165 | if (ret) | |
2166 | return ret; | |
2167 | ||
2168 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_STOP; | |
2169 | break; | |
2170 | case SNDRV_PCM_TRIGGER_SUSPEND: | |
868a6ca8 | 2171 | if (be->dpcm[stream].state != SND_SOC_DPCM_STATE_START) |
01d7584c LG |
2172 | continue; |
2173 | ||
2174 | if (!snd_soc_dpcm_can_be_free_stop(fe, be, stream)) | |
2175 | continue; | |
2176 | ||
2177 | ret = dpcm_do_trigger(dpcm, be_substream, cmd); | |
2178 | if (ret) | |
2179 | return ret; | |
2180 | ||
2181 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_SUSPEND; | |
2182 | break; | |
2183 | case SNDRV_PCM_TRIGGER_PAUSE_PUSH: | |
2184 | if (be->dpcm[stream].state != SND_SOC_DPCM_STATE_START) | |
2185 | continue; | |
2186 | ||
2187 | if (!snd_soc_dpcm_can_be_free_stop(fe, be, stream)) | |
2188 | continue; | |
2189 | ||
2190 | ret = dpcm_do_trigger(dpcm, be_substream, cmd); | |
2191 | if (ret) | |
2192 | return ret; | |
2193 | ||
2194 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_PAUSED; | |
2195 | break; | |
2196 | } | |
2197 | } | |
2198 | ||
2199 | return ret; | |
2200 | } | |
2201 | EXPORT_SYMBOL_GPL(dpcm_be_dai_trigger); | |
2202 | ||
ea9d0d77 | 2203 | static int dpcm_fe_dai_do_trigger(struct snd_pcm_substream *substream, int cmd) |
01d7584c LG |
2204 | { |
2205 | struct snd_soc_pcm_runtime *fe = substream->private_data; | |
2206 | int stream = substream->stream, ret; | |
2207 | enum snd_soc_dpcm_trigger trigger = fe->dai_link->trigger[stream]; | |
2208 | ||
2209 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_FE; | |
2210 | ||
2211 | switch (trigger) { | |
2212 | case SND_SOC_DPCM_TRIGGER_PRE: | |
2213 | /* call trigger on the frontend before the backend. */ | |
2214 | ||
103d84a3 | 2215 | dev_dbg(fe->dev, "ASoC: pre trigger FE %s cmd %d\n", |
01d7584c LG |
2216 | fe->dai_link->name, cmd); |
2217 | ||
2218 | ret = soc_pcm_trigger(substream, cmd); | |
2219 | if (ret < 0) { | |
103d84a3 | 2220 | dev_err(fe->dev,"ASoC: trigger FE failed %d\n", ret); |
01d7584c LG |
2221 | goto out; |
2222 | } | |
2223 | ||
2224 | ret = dpcm_be_dai_trigger(fe, substream->stream, cmd); | |
2225 | break; | |
2226 | case SND_SOC_DPCM_TRIGGER_POST: | |
2227 | /* call trigger on the frontend after the backend. */ | |
2228 | ||
2229 | ret = dpcm_be_dai_trigger(fe, substream->stream, cmd); | |
2230 | if (ret < 0) { | |
103d84a3 | 2231 | dev_err(fe->dev,"ASoC: trigger FE failed %d\n", ret); |
01d7584c LG |
2232 | goto out; |
2233 | } | |
2234 | ||
103d84a3 | 2235 | dev_dbg(fe->dev, "ASoC: post trigger FE %s cmd %d\n", |
01d7584c LG |
2236 | fe->dai_link->name, cmd); |
2237 | ||
2238 | ret = soc_pcm_trigger(substream, cmd); | |
2239 | break; | |
07bf84aa LG |
2240 | case SND_SOC_DPCM_TRIGGER_BESPOKE: |
2241 | /* bespoke trigger() - handles both FE and BEs */ | |
2242 | ||
103d84a3 | 2243 | dev_dbg(fe->dev, "ASoC: bespoke trigger FE %s cmd %d\n", |
07bf84aa LG |
2244 | fe->dai_link->name, cmd); |
2245 | ||
2246 | ret = soc_pcm_bespoke_trigger(substream, cmd); | |
2247 | if (ret < 0) { | |
103d84a3 | 2248 | dev_err(fe->dev,"ASoC: trigger FE failed %d\n", ret); |
07bf84aa LG |
2249 | goto out; |
2250 | } | |
2251 | break; | |
01d7584c | 2252 | default: |
103d84a3 | 2253 | dev_err(fe->dev, "ASoC: invalid trigger cmd %d for %s\n", cmd, |
01d7584c LG |
2254 | fe->dai_link->name); |
2255 | ret = -EINVAL; | |
2256 | goto out; | |
2257 | } | |
2258 | ||
2259 | switch (cmd) { | |
2260 | case SNDRV_PCM_TRIGGER_START: | |
2261 | case SNDRV_PCM_TRIGGER_RESUME: | |
2262 | case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: | |
2263 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_START; | |
2264 | break; | |
2265 | case SNDRV_PCM_TRIGGER_STOP: | |
2266 | case SNDRV_PCM_TRIGGER_SUSPEND: | |
01d7584c LG |
2267 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_STOP; |
2268 | break; | |
9f169b9f PL |
2269 | case SNDRV_PCM_TRIGGER_PAUSE_PUSH: |
2270 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_PAUSED; | |
2271 | break; | |
01d7584c LG |
2272 | } |
2273 | ||
2274 | out: | |
2275 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO; | |
2276 | return ret; | |
2277 | } | |
2278 | ||
ea9d0d77 TI |
2279 | static int dpcm_fe_dai_trigger(struct snd_pcm_substream *substream, int cmd) |
2280 | { | |
2281 | struct snd_soc_pcm_runtime *fe = substream->private_data; | |
2282 | int stream = substream->stream; | |
2283 | ||
2284 | /* if FE's runtime_update is already set, we're in race; | |
2285 | * process this trigger later at exit | |
2286 | */ | |
2287 | if (fe->dpcm[stream].runtime_update != SND_SOC_DPCM_UPDATE_NO) { | |
2288 | fe->dpcm[stream].trigger_pending = cmd + 1; | |
2289 | return 0; /* delayed, assuming it's successful */ | |
2290 | } | |
2291 | ||
2292 | /* we're alone, let's trigger */ | |
2293 | return dpcm_fe_dai_do_trigger(substream, cmd); | |
2294 | } | |
2295 | ||
23607025 | 2296 | int dpcm_be_dai_prepare(struct snd_soc_pcm_runtime *fe, int stream) |
01d7584c LG |
2297 | { |
2298 | struct snd_soc_dpcm *dpcm; | |
2299 | int ret = 0; | |
2300 | ||
2301 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { | |
2302 | ||
2303 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
2304 | struct snd_pcm_substream *be_substream = | |
2305 | snd_soc_dpcm_get_substream(be, stream); | |
2306 | ||
2307 | /* is this op for this BE ? */ | |
2308 | if (!snd_soc_dpcm_be_can_update(fe, be, stream)) | |
2309 | continue; | |
2310 | ||
2311 | if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_PARAMS) && | |
95f444dc KC |
2312 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_STOP) && |
2313 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_SUSPEND)) | |
01d7584c LG |
2314 | continue; |
2315 | ||
103d84a3 | 2316 | dev_dbg(be->dev, "ASoC: prepare BE %s\n", |
94d215cc | 2317 | be->dai_link->name); |
01d7584c LG |
2318 | |
2319 | ret = soc_pcm_prepare(be_substream); | |
2320 | if (ret < 0) { | |
103d84a3 | 2321 | dev_err(be->dev, "ASoC: backend prepare failed %d\n", |
01d7584c LG |
2322 | ret); |
2323 | break; | |
2324 | } | |
2325 | ||
2326 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_PREPARE; | |
2327 | } | |
2328 | return ret; | |
2329 | } | |
2330 | ||
45c0a188 | 2331 | static int dpcm_fe_dai_prepare(struct snd_pcm_substream *substream) |
01d7584c LG |
2332 | { |
2333 | struct snd_soc_pcm_runtime *fe = substream->private_data; | |
2334 | int stream = substream->stream, ret = 0; | |
2335 | ||
2336 | mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME); | |
2337 | ||
103d84a3 | 2338 | dev_dbg(fe->dev, "ASoC: prepare FE %s\n", fe->dai_link->name); |
01d7584c | 2339 | |
ea9d0d77 | 2340 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_FE); |
01d7584c LG |
2341 | |
2342 | /* there is no point preparing this FE if there are no BEs */ | |
2343 | if (list_empty(&fe->dpcm[stream].be_clients)) { | |
103d84a3 | 2344 | dev_err(fe->dev, "ASoC: no backend DAIs enabled for %s\n", |
01d7584c LG |
2345 | fe->dai_link->name); |
2346 | ret = -EINVAL; | |
2347 | goto out; | |
2348 | } | |
2349 | ||
2350 | ret = dpcm_be_dai_prepare(fe, substream->stream); | |
2351 | if (ret < 0) | |
2352 | goto out; | |
2353 | ||
2354 | /* call prepare on the frontend */ | |
2355 | ret = soc_pcm_prepare(substream); | |
2356 | if (ret < 0) { | |
103d84a3 | 2357 | dev_err(fe->dev,"ASoC: prepare FE %s failed\n", |
01d7584c LG |
2358 | fe->dai_link->name); |
2359 | goto out; | |
2360 | } | |
2361 | ||
2362 | /* run the stream event for each BE */ | |
2363 | dpcm_dapm_stream_event(fe, stream, SND_SOC_DAPM_STREAM_START); | |
2364 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_PREPARE; | |
2365 | ||
2366 | out: | |
ea9d0d77 | 2367 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_NO); |
01d7584c LG |
2368 | mutex_unlock(&fe->card->mutex); |
2369 | ||
2370 | return ret; | |
2371 | } | |
2372 | ||
be3f3f2c LG |
2373 | static int soc_pcm_ioctl(struct snd_pcm_substream *substream, |
2374 | unsigned int cmd, void *arg) | |
2375 | { | |
2376 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
b8135864 KM |
2377 | struct snd_soc_component *component; |
2378 | struct snd_soc_rtdcom_list *rtdcom; | |
be3f3f2c | 2379 | |
b8135864 KM |
2380 | for_each_rtdcom(rtd, rtdcom) { |
2381 | component = rtdcom->component; | |
2382 | ||
b8135864 KM |
2383 | if (!component->driver->ops || |
2384 | !component->driver->ops->ioctl) | |
2385 | continue; | |
2386 | ||
2387 | /* FIXME: use 1st ioctl */ | |
2388 | return component->driver->ops->ioctl(substream, cmd, arg); | |
2389 | } | |
2390 | ||
be3f3f2c LG |
2391 | return snd_pcm_lib_ioctl(substream, cmd, arg); |
2392 | } | |
2393 | ||
618dae11 LG |
2394 | static int dpcm_run_update_shutdown(struct snd_soc_pcm_runtime *fe, int stream) |
2395 | { | |
07bf84aa LG |
2396 | struct snd_pcm_substream *substream = |
2397 | snd_soc_dpcm_get_substream(fe, stream); | |
2398 | enum snd_soc_dpcm_trigger trigger = fe->dai_link->trigger[stream]; | |
618dae11 LG |
2399 | int err; |
2400 | ||
103d84a3 | 2401 | dev_dbg(fe->dev, "ASoC: runtime %s close on FE %s\n", |
618dae11 LG |
2402 | stream ? "capture" : "playback", fe->dai_link->name); |
2403 | ||
07bf84aa LG |
2404 | if (trigger == SND_SOC_DPCM_TRIGGER_BESPOKE) { |
2405 | /* call bespoke trigger - FE takes care of all BE triggers */ | |
103d84a3 | 2406 | dev_dbg(fe->dev, "ASoC: bespoke trigger FE %s cmd stop\n", |
07bf84aa LG |
2407 | fe->dai_link->name); |
2408 | ||
2409 | err = soc_pcm_bespoke_trigger(substream, SNDRV_PCM_TRIGGER_STOP); | |
2410 | if (err < 0) | |
103d84a3 | 2411 | dev_err(fe->dev,"ASoC: trigger FE failed %d\n", err); |
07bf84aa | 2412 | } else { |
103d84a3 | 2413 | dev_dbg(fe->dev, "ASoC: trigger FE %s cmd stop\n", |
07bf84aa LG |
2414 | fe->dai_link->name); |
2415 | ||
2416 | err = dpcm_be_dai_trigger(fe, stream, SNDRV_PCM_TRIGGER_STOP); | |
2417 | if (err < 0) | |
103d84a3 | 2418 | dev_err(fe->dev,"ASoC: trigger FE failed %d\n", err); |
07bf84aa | 2419 | } |
618dae11 LG |
2420 | |
2421 | err = dpcm_be_dai_hw_free(fe, stream); | |
2422 | if (err < 0) | |
103d84a3 | 2423 | dev_err(fe->dev,"ASoC: hw_free FE failed %d\n", err); |
618dae11 LG |
2424 | |
2425 | err = dpcm_be_dai_shutdown(fe, stream); | |
2426 | if (err < 0) | |
103d84a3 | 2427 | dev_err(fe->dev,"ASoC: shutdown FE failed %d\n", err); |
618dae11 LG |
2428 | |
2429 | /* run the stream event for each BE */ | |
2430 | dpcm_dapm_stream_event(fe, stream, SND_SOC_DAPM_STREAM_NOP); | |
2431 | ||
2432 | return 0; | |
2433 | } | |
2434 | ||
2435 | static int dpcm_run_update_startup(struct snd_soc_pcm_runtime *fe, int stream) | |
2436 | { | |
07bf84aa LG |
2437 | struct snd_pcm_substream *substream = |
2438 | snd_soc_dpcm_get_substream(fe, stream); | |
618dae11 | 2439 | struct snd_soc_dpcm *dpcm; |
07bf84aa | 2440 | enum snd_soc_dpcm_trigger trigger = fe->dai_link->trigger[stream]; |
618dae11 LG |
2441 | int ret; |
2442 | ||
103d84a3 | 2443 | dev_dbg(fe->dev, "ASoC: runtime %s open on FE %s\n", |
618dae11 LG |
2444 | stream ? "capture" : "playback", fe->dai_link->name); |
2445 | ||
2446 | /* Only start the BE if the FE is ready */ | |
2447 | if (fe->dpcm[stream].state == SND_SOC_DPCM_STATE_HW_FREE || | |
2448 | fe->dpcm[stream].state == SND_SOC_DPCM_STATE_CLOSE) | |
2449 | return -EINVAL; | |
2450 | ||
2451 | /* startup must always be called for new BEs */ | |
2452 | ret = dpcm_be_dai_startup(fe, stream); | |
fffc0ca2 | 2453 | if (ret < 0) |
618dae11 | 2454 | goto disconnect; |
618dae11 LG |
2455 | |
2456 | /* keep going if FE state is > open */ | |
2457 | if (fe->dpcm[stream].state == SND_SOC_DPCM_STATE_OPEN) | |
2458 | return 0; | |
01d7584c | 2459 | |
618dae11 | 2460 | ret = dpcm_be_dai_hw_params(fe, stream); |
fffc0ca2 | 2461 | if (ret < 0) |
618dae11 | 2462 | goto close; |
618dae11 LG |
2463 | |
2464 | /* keep going if FE state is > hw_params */ | |
2465 | if (fe->dpcm[stream].state == SND_SOC_DPCM_STATE_HW_PARAMS) | |
2466 | return 0; | |
2467 | ||
2468 | ||
2469 | ret = dpcm_be_dai_prepare(fe, stream); | |
fffc0ca2 | 2470 | if (ret < 0) |
618dae11 | 2471 | goto hw_free; |
618dae11 LG |
2472 | |
2473 | /* run the stream event for each BE */ | |
2474 | dpcm_dapm_stream_event(fe, stream, SND_SOC_DAPM_STREAM_NOP); | |
2475 | ||
2476 | /* keep going if FE state is > prepare */ | |
2477 | if (fe->dpcm[stream].state == SND_SOC_DPCM_STATE_PREPARE || | |
2478 | fe->dpcm[stream].state == SND_SOC_DPCM_STATE_STOP) | |
2479 | return 0; | |
2480 | ||
07bf84aa LG |
2481 | if (trigger == SND_SOC_DPCM_TRIGGER_BESPOKE) { |
2482 | /* call trigger on the frontend - FE takes care of all BE triggers */ | |
103d84a3 | 2483 | dev_dbg(fe->dev, "ASoC: bespoke trigger FE %s cmd start\n", |
07bf84aa | 2484 | fe->dai_link->name); |
618dae11 | 2485 | |
07bf84aa LG |
2486 | ret = soc_pcm_bespoke_trigger(substream, SNDRV_PCM_TRIGGER_START); |
2487 | if (ret < 0) { | |
103d84a3 | 2488 | dev_err(fe->dev,"ASoC: bespoke trigger FE failed %d\n", ret); |
07bf84aa LG |
2489 | goto hw_free; |
2490 | } | |
2491 | } else { | |
103d84a3 | 2492 | dev_dbg(fe->dev, "ASoC: trigger FE %s cmd start\n", |
07bf84aa LG |
2493 | fe->dai_link->name); |
2494 | ||
2495 | ret = dpcm_be_dai_trigger(fe, stream, | |
2496 | SNDRV_PCM_TRIGGER_START); | |
2497 | if (ret < 0) { | |
103d84a3 | 2498 | dev_err(fe->dev,"ASoC: trigger FE failed %d\n", ret); |
07bf84aa LG |
2499 | goto hw_free; |
2500 | } | |
618dae11 LG |
2501 | } |
2502 | ||
2503 | return 0; | |
2504 | ||
2505 | hw_free: | |
2506 | dpcm_be_dai_hw_free(fe, stream); | |
2507 | close: | |
2508 | dpcm_be_dai_shutdown(fe, stream); | |
2509 | disconnect: | |
2510 | /* disconnect any non started BEs */ | |
2511 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { | |
2512 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
2513 | if (be->dpcm[stream].state != SND_SOC_DPCM_STATE_START) | |
2514 | dpcm->state = SND_SOC_DPCM_LINK_STATE_FREE; | |
2515 | } | |
2516 | ||
2517 | return ret; | |
2518 | } | |
2519 | ||
2520 | static int dpcm_run_new_update(struct snd_soc_pcm_runtime *fe, int stream) | |
2521 | { | |
2522 | int ret; | |
2523 | ||
ea9d0d77 | 2524 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_BE); |
618dae11 LG |
2525 | ret = dpcm_run_update_startup(fe, stream); |
2526 | if (ret < 0) | |
103d84a3 | 2527 | dev_err(fe->dev, "ASoC: failed to startup some BEs\n"); |
ea9d0d77 | 2528 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_NO); |
618dae11 LG |
2529 | |
2530 | return ret; | |
2531 | } | |
2532 | ||
2533 | static int dpcm_run_old_update(struct snd_soc_pcm_runtime *fe, int stream) | |
2534 | { | |
2535 | int ret; | |
2536 | ||
ea9d0d77 | 2537 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_BE); |
618dae11 LG |
2538 | ret = dpcm_run_update_shutdown(fe, stream); |
2539 | if (ret < 0) | |
103d84a3 | 2540 | dev_err(fe->dev, "ASoC: failed to shutdown some BEs\n"); |
ea9d0d77 | 2541 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_NO); |
618dae11 LG |
2542 | |
2543 | return ret; | |
2544 | } | |
2545 | ||
2546 | /* Called by DAPM mixer/mux changes to update audio routing between PCMs and | |
2547 | * any DAI links. | |
2548 | */ | |
c3f48ae6 | 2549 | int soc_dpcm_runtime_update(struct snd_soc_card *card) |
618dae11 | 2550 | { |
1a497983 ML |
2551 | struct snd_soc_pcm_runtime *fe; |
2552 | int old, new, paths; | |
618dae11 | 2553 | |
618dae11 | 2554 | mutex_lock_nested(&card->mutex, SND_SOC_CARD_CLASS_RUNTIME); |
1a497983 | 2555 | list_for_each_entry(fe, &card->rtd_list, list) { |
618dae11 | 2556 | struct snd_soc_dapm_widget_list *list; |
618dae11 LG |
2557 | |
2558 | /* make sure link is FE */ | |
2559 | if (!fe->dai_link->dynamic) | |
2560 | continue; | |
2561 | ||
2562 | /* only check active links */ | |
2563 | if (!fe->cpu_dai->active) | |
2564 | continue; | |
2565 | ||
2566 | /* DAPM sync will call this to update DSP paths */ | |
103d84a3 | 2567 | dev_dbg(fe->dev, "ASoC: DPCM runtime update for FE %s\n", |
618dae11 LG |
2568 | fe->dai_link->name); |
2569 | ||
2570 | /* skip if FE doesn't have playback capability */ | |
075207d2 QZ |
2571 | if (!fe->cpu_dai->driver->playback.channels_min |
2572 | || !fe->codec_dai->driver->playback.channels_min) | |
2573 | goto capture; | |
2574 | ||
2575 | /* skip if FE isn't currently playing */ | |
2576 | if (!fe->cpu_dai->playback_active | |
2577 | || !fe->codec_dai->playback_active) | |
618dae11 LG |
2578 | goto capture; |
2579 | ||
2580 | paths = dpcm_path_get(fe, SNDRV_PCM_STREAM_PLAYBACK, &list); | |
2581 | if (paths < 0) { | |
103d84a3 | 2582 | dev_warn(fe->dev, "ASoC: %s no valid %s path\n", |
618dae11 LG |
2583 | fe->dai_link->name, "playback"); |
2584 | mutex_unlock(&card->mutex); | |
2585 | return paths; | |
2586 | } | |
2587 | ||
2588 | /* update any new playback paths */ | |
2589 | new = dpcm_process_paths(fe, SNDRV_PCM_STREAM_PLAYBACK, &list, 1); | |
2590 | if (new) { | |
2591 | dpcm_run_new_update(fe, SNDRV_PCM_STREAM_PLAYBACK); | |
2592 | dpcm_clear_pending_state(fe, SNDRV_PCM_STREAM_PLAYBACK); | |
2593 | dpcm_be_disconnect(fe, SNDRV_PCM_STREAM_PLAYBACK); | |
2594 | } | |
2595 | ||
2596 | /* update any old playback paths */ | |
2597 | old = dpcm_process_paths(fe, SNDRV_PCM_STREAM_PLAYBACK, &list, 0); | |
2598 | if (old) { | |
2599 | dpcm_run_old_update(fe, SNDRV_PCM_STREAM_PLAYBACK); | |
2600 | dpcm_clear_pending_state(fe, SNDRV_PCM_STREAM_PLAYBACK); | |
2601 | dpcm_be_disconnect(fe, SNDRV_PCM_STREAM_PLAYBACK); | |
2602 | } | |
2603 | ||
7ed9de76 | 2604 | dpcm_path_put(&list); |
618dae11 LG |
2605 | capture: |
2606 | /* skip if FE doesn't have capture capability */ | |
075207d2 QZ |
2607 | if (!fe->cpu_dai->driver->capture.channels_min |
2608 | || !fe->codec_dai->driver->capture.channels_min) | |
2609 | continue; | |
2610 | ||
2611 | /* skip if FE isn't currently capturing */ | |
2612 | if (!fe->cpu_dai->capture_active | |
2613 | || !fe->codec_dai->capture_active) | |
618dae11 LG |
2614 | continue; |
2615 | ||
2616 | paths = dpcm_path_get(fe, SNDRV_PCM_STREAM_CAPTURE, &list); | |
2617 | if (paths < 0) { | |
103d84a3 | 2618 | dev_warn(fe->dev, "ASoC: %s no valid %s path\n", |
618dae11 LG |
2619 | fe->dai_link->name, "capture"); |
2620 | mutex_unlock(&card->mutex); | |
2621 | return paths; | |
2622 | } | |
2623 | ||
2624 | /* update any new capture paths */ | |
2625 | new = dpcm_process_paths(fe, SNDRV_PCM_STREAM_CAPTURE, &list, 1); | |
2626 | if (new) { | |
2627 | dpcm_run_new_update(fe, SNDRV_PCM_STREAM_CAPTURE); | |
2628 | dpcm_clear_pending_state(fe, SNDRV_PCM_STREAM_CAPTURE); | |
2629 | dpcm_be_disconnect(fe, SNDRV_PCM_STREAM_CAPTURE); | |
2630 | } | |
2631 | ||
2632 | /* update any old capture paths */ | |
2633 | old = dpcm_process_paths(fe, SNDRV_PCM_STREAM_CAPTURE, &list, 0); | |
2634 | if (old) { | |
2635 | dpcm_run_old_update(fe, SNDRV_PCM_STREAM_CAPTURE); | |
2636 | dpcm_clear_pending_state(fe, SNDRV_PCM_STREAM_CAPTURE); | |
2637 | dpcm_be_disconnect(fe, SNDRV_PCM_STREAM_CAPTURE); | |
2638 | } | |
2639 | ||
2640 | dpcm_path_put(&list); | |
2641 | } | |
2642 | ||
2643 | mutex_unlock(&card->mutex); | |
2644 | return 0; | |
2645 | } | |
01d7584c LG |
2646 | int soc_dpcm_be_digital_mute(struct snd_soc_pcm_runtime *fe, int mute) |
2647 | { | |
2648 | struct snd_soc_dpcm *dpcm; | |
2649 | struct list_head *clients = | |
2650 | &fe->dpcm[SNDRV_PCM_STREAM_PLAYBACK].be_clients; | |
2651 | ||
2652 | list_for_each_entry(dpcm, clients, list_be) { | |
2653 | ||
2654 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
2e5894d7 | 2655 | int i; |
01d7584c LG |
2656 | |
2657 | if (be->dai_link->ignore_suspend) | |
2658 | continue; | |
2659 | ||
2e5894d7 BC |
2660 | for (i = 0; i < be->num_codecs; i++) { |
2661 | struct snd_soc_dai *dai = be->codec_dais[i]; | |
2662 | struct snd_soc_dai_driver *drv = dai->driver; | |
2663 | ||
2664 | dev_dbg(be->dev, "ASoC: BE digital mute %s\n", | |
2665 | be->dai_link->name); | |
01d7584c | 2666 | |
2e5894d7 BC |
2667 | if (drv->ops && drv->ops->digital_mute && |
2668 | dai->playback_active) | |
2669 | drv->ops->digital_mute(dai, mute); | |
2670 | } | |
01d7584c LG |
2671 | } |
2672 | ||
2673 | return 0; | |
2674 | } | |
2675 | ||
45c0a188 | 2676 | static int dpcm_fe_dai_open(struct snd_pcm_substream *fe_substream) |
01d7584c LG |
2677 | { |
2678 | struct snd_soc_pcm_runtime *fe = fe_substream->private_data; | |
2679 | struct snd_soc_dpcm *dpcm; | |
2680 | struct snd_soc_dapm_widget_list *list; | |
2681 | int ret; | |
2682 | int stream = fe_substream->stream; | |
2683 | ||
2684 | mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME); | |
2685 | fe->dpcm[stream].runtime = fe_substream->runtime; | |
2686 | ||
8f70e515 QZ |
2687 | ret = dpcm_path_get(fe, stream, &list); |
2688 | if (ret < 0) { | |
2689 | mutex_unlock(&fe->card->mutex); | |
2690 | return ret; | |
2691 | } else if (ret == 0) { | |
103d84a3 | 2692 | dev_dbg(fe->dev, "ASoC: %s no valid %s route\n", |
01d7584c | 2693 | fe->dai_link->name, stream ? "capture" : "playback"); |
01d7584c LG |
2694 | } |
2695 | ||
2696 | /* calculate valid and active FE <-> BE dpcms */ | |
2697 | dpcm_process_paths(fe, stream, &list, 1); | |
2698 | ||
2699 | ret = dpcm_fe_dai_startup(fe_substream); | |
2700 | if (ret < 0) { | |
2701 | /* clean up all links */ | |
2702 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) | |
2703 | dpcm->state = SND_SOC_DPCM_LINK_STATE_FREE; | |
2704 | ||
2705 | dpcm_be_disconnect(fe, stream); | |
2706 | fe->dpcm[stream].runtime = NULL; | |
2707 | } | |
2708 | ||
2709 | dpcm_clear_pending_state(fe, stream); | |
2710 | dpcm_path_put(&list); | |
2711 | mutex_unlock(&fe->card->mutex); | |
2712 | return ret; | |
2713 | } | |
2714 | ||
45c0a188 | 2715 | static int dpcm_fe_dai_close(struct snd_pcm_substream *fe_substream) |
01d7584c LG |
2716 | { |
2717 | struct snd_soc_pcm_runtime *fe = fe_substream->private_data; | |
2718 | struct snd_soc_dpcm *dpcm; | |
2719 | int stream = fe_substream->stream, ret; | |
2720 | ||
2721 | mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME); | |
2722 | ret = dpcm_fe_dai_shutdown(fe_substream); | |
2723 | ||
2724 | /* mark FE's links ready to prune */ | |
2725 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) | |
2726 | dpcm->state = SND_SOC_DPCM_LINK_STATE_FREE; | |
2727 | ||
2728 | dpcm_be_disconnect(fe, stream); | |
2729 | ||
2730 | fe->dpcm[stream].runtime = NULL; | |
2731 | mutex_unlock(&fe->card->mutex); | |
2732 | return ret; | |
2733 | } | |
2734 | ||
5d61f0ba TI |
2735 | static void soc_pcm_private_free(struct snd_pcm *pcm) |
2736 | { | |
2737 | struct snd_soc_pcm_runtime *rtd = pcm->private_data; | |
f523aceb KM |
2738 | struct snd_soc_rtdcom_list *rtdcom; |
2739 | struct snd_soc_component *component; | |
2740 | ||
f30a4c31 KM |
2741 | /* need to sync the delayed work before releasing resources */ |
2742 | flush_delayed_work(&rtd->delayed_work); | |
f523aceb | 2743 | for_each_rtdcom(rtd, rtdcom) { |
f523aceb | 2744 | component = rtdcom->component; |
5d61f0ba | 2745 | |
11fb14f8 KM |
2746 | if (component->driver->pcm_free) |
2747 | component->driver->pcm_free(pcm); | |
f523aceb | 2748 | } |
5d61f0ba TI |
2749 | } |
2750 | ||
b8135864 KM |
2751 | static int soc_rtdcom_ack(struct snd_pcm_substream *substream) |
2752 | { | |
2753 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
2754 | struct snd_soc_rtdcom_list *rtdcom; | |
2755 | struct snd_soc_component *component; | |
2756 | ||
2757 | for_each_rtdcom(rtd, rtdcom) { | |
2758 | component = rtdcom->component; | |
2759 | ||
2760 | if (!component->driver->ops || | |
2761 | !component->driver->ops->ack) | |
2762 | continue; | |
2763 | ||
2764 | /* FIXME. it returns 1st ask now */ | |
2765 | return component->driver->ops->ack(substream); | |
2766 | } | |
2767 | ||
2768 | return -EINVAL; | |
2769 | } | |
2770 | ||
2771 | static int soc_rtdcom_copy_user(struct snd_pcm_substream *substream, int channel, | |
2772 | unsigned long pos, void __user *buf, | |
2773 | unsigned long bytes) | |
2774 | { | |
2775 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
2776 | struct snd_soc_rtdcom_list *rtdcom; | |
2777 | struct snd_soc_component *component; | |
2778 | ||
2779 | for_each_rtdcom(rtd, rtdcom) { | |
2780 | component = rtdcom->component; | |
2781 | ||
2782 | if (!component->driver->ops || | |
2783 | !component->driver->ops->copy_user) | |
2784 | continue; | |
2785 | ||
2786 | /* FIXME. it returns 1st copy now */ | |
2787 | return component->driver->ops->copy_user(substream, channel, | |
2788 | pos, buf, bytes); | |
2789 | } | |
2790 | ||
2791 | return -EINVAL; | |
2792 | } | |
2793 | ||
2794 | static int soc_rtdcom_copy_kernel(struct snd_pcm_substream *substream, int channel, | |
2795 | unsigned long pos, void *buf, unsigned long bytes) | |
2796 | { | |
2797 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
2798 | struct snd_soc_rtdcom_list *rtdcom; | |
2799 | struct snd_soc_component *component; | |
2800 | ||
2801 | for_each_rtdcom(rtd, rtdcom) { | |
2802 | component = rtdcom->component; | |
2803 | ||
2804 | if (!component->driver->ops || | |
2805 | !component->driver->ops->copy_kernel) | |
2806 | continue; | |
2807 | ||
2808 | /* FIXME. it returns 1st copy now */ | |
2809 | return component->driver->ops->copy_kernel(substream, channel, | |
2810 | pos, buf, bytes); | |
2811 | } | |
2812 | ||
2813 | return -EINVAL; | |
2814 | } | |
2815 | ||
2816 | static int soc_rtdcom_fill_silence(struct snd_pcm_substream *substream, int channel, | |
2817 | unsigned long pos, unsigned long bytes) | |
2818 | { | |
2819 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
2820 | struct snd_soc_rtdcom_list *rtdcom; | |
2821 | struct snd_soc_component *component; | |
2822 | ||
2823 | for_each_rtdcom(rtd, rtdcom) { | |
2824 | component = rtdcom->component; | |
2825 | ||
2826 | if (!component->driver->ops || | |
2827 | !component->driver->ops->fill_silence) | |
2828 | continue; | |
2829 | ||
2830 | /* FIXME. it returns 1st silence now */ | |
2831 | return component->driver->ops->fill_silence(substream, channel, | |
2832 | pos, bytes); | |
2833 | } | |
2834 | ||
2835 | return -EINVAL; | |
2836 | } | |
2837 | ||
2838 | static struct page *soc_rtdcom_page(struct snd_pcm_substream *substream, | |
2839 | unsigned long offset) | |
2840 | { | |
2841 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
2842 | struct snd_soc_rtdcom_list *rtdcom; | |
2843 | struct snd_soc_component *component; | |
2844 | struct page *page; | |
2845 | ||
2846 | for_each_rtdcom(rtd, rtdcom) { | |
2847 | component = rtdcom->component; | |
2848 | ||
2849 | if (!component->driver->ops || | |
2850 | !component->driver->ops->page) | |
2851 | continue; | |
2852 | ||
2853 | /* FIXME. it returns 1st page now */ | |
2854 | page = component->driver->ops->page(substream, offset); | |
2855 | if (page) | |
2856 | return page; | |
2857 | } | |
2858 | ||
2859 | return NULL; | |
2860 | } | |
2861 | ||
2862 | static int soc_rtdcom_mmap(struct snd_pcm_substream *substream, | |
2863 | struct vm_area_struct *vma) | |
2864 | { | |
2865 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
2866 | struct snd_soc_rtdcom_list *rtdcom; | |
2867 | struct snd_soc_component *component; | |
2868 | ||
2869 | for_each_rtdcom(rtd, rtdcom) { | |
2870 | component = rtdcom->component; | |
2871 | ||
2872 | if (!component->driver->ops || | |
2873 | !component->driver->ops->mmap) | |
2874 | continue; | |
2875 | ||
2876 | /* FIXME. it returns 1st mmap now */ | |
2877 | return component->driver->ops->mmap(substream, vma); | |
2878 | } | |
2879 | ||
2880 | return -EINVAL; | |
2881 | } | |
2882 | ||
ddee627c LG |
2883 | /* create a new pcm */ |
2884 | int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num) | |
2885 | { | |
2e5894d7 | 2886 | struct snd_soc_dai *codec_dai; |
ddee627c | 2887 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
f523aceb KM |
2888 | struct snd_soc_component *component; |
2889 | struct snd_soc_rtdcom_list *rtdcom; | |
ddee627c LG |
2890 | struct snd_pcm *pcm; |
2891 | char new_name[64]; | |
2892 | int ret = 0, playback = 0, capture = 0; | |
2e5894d7 | 2893 | int i; |
ddee627c | 2894 | |
01d7584c | 2895 | if (rtd->dai_link->dynamic || rtd->dai_link->no_pcm) { |
1e9de42f LG |
2896 | playback = rtd->dai_link->dpcm_playback; |
2897 | capture = rtd->dai_link->dpcm_capture; | |
01d7584c | 2898 | } else { |
2e5894d7 BC |
2899 | for (i = 0; i < rtd->num_codecs; i++) { |
2900 | codec_dai = rtd->codec_dais[i]; | |
2901 | if (codec_dai->driver->playback.channels_min) | |
2902 | playback = 1; | |
2903 | if (codec_dai->driver->capture.channels_min) | |
2904 | capture = 1; | |
2905 | } | |
2906 | ||
2907 | capture = capture && cpu_dai->driver->capture.channels_min; | |
2908 | playback = playback && cpu_dai->driver->playback.channels_min; | |
01d7584c LG |
2909 | } |
2910 | ||
d6bead02 FE |
2911 | if (rtd->dai_link->playback_only) { |
2912 | playback = 1; | |
2913 | capture = 0; | |
2914 | } | |
2915 | ||
2916 | if (rtd->dai_link->capture_only) { | |
2917 | playback = 0; | |
2918 | capture = 1; | |
2919 | } | |
2920 | ||
01d7584c LG |
2921 | /* create the PCM */ |
2922 | if (rtd->dai_link->no_pcm) { | |
2923 | snprintf(new_name, sizeof(new_name), "(%s)", | |
2924 | rtd->dai_link->stream_name); | |
2925 | ||
2926 | ret = snd_pcm_new_internal(rtd->card->snd_card, new_name, num, | |
2927 | playback, capture, &pcm); | |
2928 | } else { | |
2929 | if (rtd->dai_link->dynamic) | |
2930 | snprintf(new_name, sizeof(new_name), "%s (*)", | |
2931 | rtd->dai_link->stream_name); | |
2932 | else | |
2933 | snprintf(new_name, sizeof(new_name), "%s %s-%d", | |
2e5894d7 BC |
2934 | rtd->dai_link->stream_name, |
2935 | (rtd->num_codecs > 1) ? | |
2936 | "multicodec" : rtd->codec_dai->name, num); | |
01d7584c LG |
2937 | |
2938 | ret = snd_pcm_new(rtd->card->snd_card, new_name, num, playback, | |
2939 | capture, &pcm); | |
2940 | } | |
ddee627c | 2941 | if (ret < 0) { |
103d84a3 | 2942 | dev_err(rtd->card->dev, "ASoC: can't create pcm for %s\n", |
5cb9b748 | 2943 | rtd->dai_link->name); |
ddee627c LG |
2944 | return ret; |
2945 | } | |
103d84a3 | 2946 | dev_dbg(rtd->card->dev, "ASoC: registered pcm #%d %s\n",num, new_name); |
ddee627c LG |
2947 | |
2948 | /* DAPM dai link stream work */ | |
2949 | INIT_DELAYED_WORK(&rtd->delayed_work, close_delayed_work); | |
2950 | ||
48c7699f | 2951 | pcm->nonatomic = rtd->dai_link->nonatomic; |
ddee627c LG |
2952 | rtd->pcm = pcm; |
2953 | pcm->private_data = rtd; | |
01d7584c LG |
2954 | |
2955 | if (rtd->dai_link->no_pcm) { | |
2956 | if (playback) | |
2957 | pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream->private_data = rtd; | |
2958 | if (capture) | |
2959 | pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream->private_data = rtd; | |
2960 | goto out; | |
2961 | } | |
2962 | ||
2963 | /* ASoC PCM operations */ | |
2964 | if (rtd->dai_link->dynamic) { | |
2965 | rtd->ops.open = dpcm_fe_dai_open; | |
2966 | rtd->ops.hw_params = dpcm_fe_dai_hw_params; | |
2967 | rtd->ops.prepare = dpcm_fe_dai_prepare; | |
2968 | rtd->ops.trigger = dpcm_fe_dai_trigger; | |
2969 | rtd->ops.hw_free = dpcm_fe_dai_hw_free; | |
2970 | rtd->ops.close = dpcm_fe_dai_close; | |
2971 | rtd->ops.pointer = soc_pcm_pointer; | |
be3f3f2c | 2972 | rtd->ops.ioctl = soc_pcm_ioctl; |
01d7584c LG |
2973 | } else { |
2974 | rtd->ops.open = soc_pcm_open; | |
2975 | rtd->ops.hw_params = soc_pcm_hw_params; | |
2976 | rtd->ops.prepare = soc_pcm_prepare; | |
2977 | rtd->ops.trigger = soc_pcm_trigger; | |
2978 | rtd->ops.hw_free = soc_pcm_hw_free; | |
2979 | rtd->ops.close = soc_pcm_close; | |
2980 | rtd->ops.pointer = soc_pcm_pointer; | |
be3f3f2c | 2981 | rtd->ops.ioctl = soc_pcm_ioctl; |
01d7584c LG |
2982 | } |
2983 | ||
b8135864 KM |
2984 | for_each_rtdcom(rtd, rtdcom) { |
2985 | const struct snd_pcm_ops *ops = rtdcom->component->driver->ops; | |
2986 | ||
2987 | if (!ops) | |
2988 | continue; | |
2989 | ||
2990 | if (ops->ack) | |
2991 | rtd->ops.ack = soc_rtdcom_ack; | |
2992 | if (ops->copy_user) | |
2993 | rtd->ops.copy_user = soc_rtdcom_copy_user; | |
2994 | if (ops->copy_kernel) | |
2995 | rtd->ops.copy_kernel = soc_rtdcom_copy_kernel; | |
2996 | if (ops->fill_silence) | |
2997 | rtd->ops.fill_silence = soc_rtdcom_fill_silence; | |
2998 | if (ops->page) | |
2999 | rtd->ops.page = soc_rtdcom_page; | |
3000 | if (ops->mmap) | |
3001 | rtd->ops.mmap = soc_rtdcom_mmap; | |
ddee627c LG |
3002 | } |
3003 | ||
3004 | if (playback) | |
01d7584c | 3005 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &rtd->ops); |
ddee627c LG |
3006 | |
3007 | if (capture) | |
01d7584c | 3008 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &rtd->ops); |
ddee627c | 3009 | |
f523aceb KM |
3010 | for_each_rtdcom(rtd, rtdcom) { |
3011 | component = rtdcom->component; | |
3012 | ||
11fb14f8 | 3013 | if (!component->driver->pcm_new) |
f523aceb KM |
3014 | continue; |
3015 | ||
11fb14f8 | 3016 | ret = component->driver->pcm_new(rtd); |
c641e5b2 | 3017 | if (ret < 0) { |
f523aceb | 3018 | dev_err(component->dev, |
c641e5b2 JH |
3019 | "ASoC: pcm constructor failed: %d\n", |
3020 | ret); | |
3021 | return ret; | |
ddee627c LG |
3022 | } |
3023 | } | |
c641e5b2 | 3024 | |
5d61f0ba | 3025 | pcm->private_free = soc_pcm_private_free; |
01d7584c | 3026 | out: |
2e5894d7 BC |
3027 | dev_info(rtd->card->dev, "%s <-> %s mapping ok\n", |
3028 | (rtd->num_codecs > 1) ? "multicodec" : rtd->codec_dai->name, | |
3029 | cpu_dai->name); | |
ddee627c LG |
3030 | return ret; |
3031 | } | |
01d7584c LG |
3032 | |
3033 | /* is the current PCM operation for this FE ? */ | |
3034 | int snd_soc_dpcm_fe_can_update(struct snd_soc_pcm_runtime *fe, int stream) | |
3035 | { | |
3036 | if (fe->dpcm[stream].runtime_update == SND_SOC_DPCM_UPDATE_FE) | |
3037 | return 1; | |
3038 | return 0; | |
3039 | } | |
3040 | EXPORT_SYMBOL_GPL(snd_soc_dpcm_fe_can_update); | |
3041 | ||
3042 | /* is the current PCM operation for this BE ? */ | |
3043 | int snd_soc_dpcm_be_can_update(struct snd_soc_pcm_runtime *fe, | |
3044 | struct snd_soc_pcm_runtime *be, int stream) | |
3045 | { | |
3046 | if ((fe->dpcm[stream].runtime_update == SND_SOC_DPCM_UPDATE_FE) || | |
3047 | ((fe->dpcm[stream].runtime_update == SND_SOC_DPCM_UPDATE_BE) && | |
3048 | be->dpcm[stream].runtime_update)) | |
3049 | return 1; | |
3050 | return 0; | |
3051 | } | |
3052 | EXPORT_SYMBOL_GPL(snd_soc_dpcm_be_can_update); | |
3053 | ||
3054 | /* get the substream for this BE */ | |
3055 | struct snd_pcm_substream * | |
3056 | snd_soc_dpcm_get_substream(struct snd_soc_pcm_runtime *be, int stream) | |
3057 | { | |
3058 | return be->pcm->streams[stream].substream; | |
3059 | } | |
3060 | EXPORT_SYMBOL_GPL(snd_soc_dpcm_get_substream); | |
3061 | ||
3062 | /* get the BE runtime state */ | |
3063 | enum snd_soc_dpcm_state | |
3064 | snd_soc_dpcm_be_get_state(struct snd_soc_pcm_runtime *be, int stream) | |
3065 | { | |
3066 | return be->dpcm[stream].state; | |
3067 | } | |
3068 | EXPORT_SYMBOL_GPL(snd_soc_dpcm_be_get_state); | |
3069 | ||
3070 | /* set the BE runtime state */ | |
3071 | void snd_soc_dpcm_be_set_state(struct snd_soc_pcm_runtime *be, | |
3072 | int stream, enum snd_soc_dpcm_state state) | |
3073 | { | |
3074 | be->dpcm[stream].state = state; | |
3075 | } | |
3076 | EXPORT_SYMBOL_GPL(snd_soc_dpcm_be_set_state); | |
3077 | ||
3078 | /* | |
3079 | * We can only hw_free, stop, pause or suspend a BE DAI if any of it's FE | |
3080 | * are not running, paused or suspended for the specified stream direction. | |
3081 | */ | |
3082 | int snd_soc_dpcm_can_be_free_stop(struct snd_soc_pcm_runtime *fe, | |
3083 | struct snd_soc_pcm_runtime *be, int stream) | |
3084 | { | |
3085 | struct snd_soc_dpcm *dpcm; | |
3086 | int state; | |
3087 | ||
3088 | list_for_each_entry(dpcm, &be->dpcm[stream].fe_clients, list_fe) { | |
3089 | ||
3090 | if (dpcm->fe == fe) | |
3091 | continue; | |
3092 | ||
3093 | state = dpcm->fe->dpcm[stream].state; | |
3094 | if (state == SND_SOC_DPCM_STATE_START || | |
3095 | state == SND_SOC_DPCM_STATE_PAUSED || | |
3096 | state == SND_SOC_DPCM_STATE_SUSPEND) | |
3097 | return 0; | |
3098 | } | |
3099 | ||
3100 | /* it's safe to free/stop this BE DAI */ | |
3101 | return 1; | |
3102 | } | |
3103 | EXPORT_SYMBOL_GPL(snd_soc_dpcm_can_be_free_stop); | |
3104 | ||
3105 | /* | |
3106 | * We can only change hw params a BE DAI if any of it's FE are not prepared, | |
3107 | * running, paused or suspended for the specified stream direction. | |
3108 | */ | |
3109 | int snd_soc_dpcm_can_be_params(struct snd_soc_pcm_runtime *fe, | |
3110 | struct snd_soc_pcm_runtime *be, int stream) | |
3111 | { | |
3112 | struct snd_soc_dpcm *dpcm; | |
3113 | int state; | |
3114 | ||
3115 | list_for_each_entry(dpcm, &be->dpcm[stream].fe_clients, list_fe) { | |
3116 | ||
3117 | if (dpcm->fe == fe) | |
3118 | continue; | |
3119 | ||
3120 | state = dpcm->fe->dpcm[stream].state; | |
3121 | if (state == SND_SOC_DPCM_STATE_START || | |
3122 | state == SND_SOC_DPCM_STATE_PAUSED || | |
3123 | state == SND_SOC_DPCM_STATE_SUSPEND || | |
3124 | state == SND_SOC_DPCM_STATE_PREPARE) | |
3125 | return 0; | |
3126 | } | |
3127 | ||
3128 | /* it's safe to change hw_params */ | |
3129 | return 1; | |
3130 | } | |
3131 | EXPORT_SYMBOL_GPL(snd_soc_dpcm_can_be_params); | |
f86dcef8 LG |
3132 | |
3133 | #ifdef CONFIG_DEBUG_FS | |
85280141 | 3134 | static const char *dpcm_state_string(enum snd_soc_dpcm_state state) |
f86dcef8 LG |
3135 | { |
3136 | switch (state) { | |
3137 | case SND_SOC_DPCM_STATE_NEW: | |
3138 | return "new"; | |
3139 | case SND_SOC_DPCM_STATE_OPEN: | |
3140 | return "open"; | |
3141 | case SND_SOC_DPCM_STATE_HW_PARAMS: | |
3142 | return "hw_params"; | |
3143 | case SND_SOC_DPCM_STATE_PREPARE: | |
3144 | return "prepare"; | |
3145 | case SND_SOC_DPCM_STATE_START: | |
3146 | return "start"; | |
3147 | case SND_SOC_DPCM_STATE_STOP: | |
3148 | return "stop"; | |
3149 | case SND_SOC_DPCM_STATE_SUSPEND: | |
3150 | return "suspend"; | |
3151 | case SND_SOC_DPCM_STATE_PAUSED: | |
3152 | return "paused"; | |
3153 | case SND_SOC_DPCM_STATE_HW_FREE: | |
3154 | return "hw_free"; | |
3155 | case SND_SOC_DPCM_STATE_CLOSE: | |
3156 | return "close"; | |
3157 | } | |
3158 | ||
3159 | return "unknown"; | |
3160 | } | |
3161 | ||
f86dcef8 LG |
3162 | static ssize_t dpcm_show_state(struct snd_soc_pcm_runtime *fe, |
3163 | int stream, char *buf, size_t size) | |
3164 | { | |
3165 | struct snd_pcm_hw_params *params = &fe->dpcm[stream].hw_params; | |
3166 | struct snd_soc_dpcm *dpcm; | |
3167 | ssize_t offset = 0; | |
3168 | ||
3169 | /* FE state */ | |
3170 | offset += snprintf(buf + offset, size - offset, | |
3171 | "[%s - %s]\n", fe->dai_link->name, | |
3172 | stream ? "Capture" : "Playback"); | |
3173 | ||
3174 | offset += snprintf(buf + offset, size - offset, "State: %s\n", | |
3175 | dpcm_state_string(fe->dpcm[stream].state)); | |
3176 | ||
3177 | if ((fe->dpcm[stream].state >= SND_SOC_DPCM_STATE_HW_PARAMS) && | |
3178 | (fe->dpcm[stream].state <= SND_SOC_DPCM_STATE_STOP)) | |
3179 | offset += snprintf(buf + offset, size - offset, | |
3180 | "Hardware Params: " | |
3181 | "Format = %s, Channels = %d, Rate = %d\n", | |
3182 | snd_pcm_format_name(params_format(params)), | |
3183 | params_channels(params), | |
3184 | params_rate(params)); | |
3185 | ||
3186 | /* BEs state */ | |
3187 | offset += snprintf(buf + offset, size - offset, "Backends:\n"); | |
3188 | ||
3189 | if (list_empty(&fe->dpcm[stream].be_clients)) { | |
3190 | offset += snprintf(buf + offset, size - offset, | |
3191 | " No active DSP links\n"); | |
3192 | goto out; | |
3193 | } | |
3194 | ||
3195 | list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) { | |
3196 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
3197 | params = &dpcm->hw_params; | |
3198 | ||
3199 | offset += snprintf(buf + offset, size - offset, | |
3200 | "- %s\n", be->dai_link->name); | |
3201 | ||
3202 | offset += snprintf(buf + offset, size - offset, | |
3203 | " State: %s\n", | |
3204 | dpcm_state_string(be->dpcm[stream].state)); | |
3205 | ||
3206 | if ((be->dpcm[stream].state >= SND_SOC_DPCM_STATE_HW_PARAMS) && | |
3207 | (be->dpcm[stream].state <= SND_SOC_DPCM_STATE_STOP)) | |
3208 | offset += snprintf(buf + offset, size - offset, | |
3209 | " Hardware Params: " | |
3210 | "Format = %s, Channels = %d, Rate = %d\n", | |
3211 | snd_pcm_format_name(params_format(params)), | |
3212 | params_channels(params), | |
3213 | params_rate(params)); | |
3214 | } | |
3215 | ||
3216 | out: | |
3217 | return offset; | |
3218 | } | |
3219 | ||
3220 | static ssize_t dpcm_state_read_file(struct file *file, char __user *user_buf, | |
3221 | size_t count, loff_t *ppos) | |
3222 | { | |
3223 | struct snd_soc_pcm_runtime *fe = file->private_data; | |
3224 | ssize_t out_count = PAGE_SIZE, offset = 0, ret = 0; | |
3225 | char *buf; | |
3226 | ||
3227 | buf = kmalloc(out_count, GFP_KERNEL); | |
3228 | if (!buf) | |
3229 | return -ENOMEM; | |
3230 | ||
3231 | if (fe->cpu_dai->driver->playback.channels_min) | |
3232 | offset += dpcm_show_state(fe, SNDRV_PCM_STREAM_PLAYBACK, | |
3233 | buf + offset, out_count - offset); | |
3234 | ||
3235 | if (fe->cpu_dai->driver->capture.channels_min) | |
3236 | offset += dpcm_show_state(fe, SNDRV_PCM_STREAM_CAPTURE, | |
3237 | buf + offset, out_count - offset); | |
3238 | ||
f57b8488 | 3239 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, offset); |
f86dcef8 | 3240 | |
f57b8488 LG |
3241 | kfree(buf); |
3242 | return ret; | |
f86dcef8 LG |
3243 | } |
3244 | ||
3245 | static const struct file_operations dpcm_state_fops = { | |
f57b8488 | 3246 | .open = simple_open, |
f86dcef8 LG |
3247 | .read = dpcm_state_read_file, |
3248 | .llseek = default_llseek, | |
3249 | }; | |
3250 | ||
2e55b90a | 3251 | void soc_dpcm_debugfs_add(struct snd_soc_pcm_runtime *rtd) |
f86dcef8 | 3252 | { |
b3bba9a1 | 3253 | if (!rtd->dai_link) |
2e55b90a | 3254 | return; |
b3bba9a1 | 3255 | |
6553bf06 LPC |
3256 | if (!rtd->card->debugfs_card_root) |
3257 | return; | |
b3bba9a1 | 3258 | |
f86dcef8 LG |
3259 | rtd->debugfs_dpcm_root = debugfs_create_dir(rtd->dai_link->name, |
3260 | rtd->card->debugfs_card_root); | |
3261 | if (!rtd->debugfs_dpcm_root) { | |
3262 | dev_dbg(rtd->dev, | |
3263 | "ASoC: Failed to create dpcm debugfs directory %s\n", | |
3264 | rtd->dai_link->name); | |
2e55b90a | 3265 | return; |
f86dcef8 LG |
3266 | } |
3267 | ||
f1e3f409 FE |
3268 | debugfs_create_file("state", 0444, rtd->debugfs_dpcm_root, |
3269 | rtd, &dpcm_state_fops); | |
f86dcef8 LG |
3270 | } |
3271 | #endif |