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ed517582 KM |
1 | // SPDX-License-Identifier: GPL-2.0+ |
2 | // | |
3 | // soc-pcm.c -- ALSA SoC PCM | |
4 | // | |
5 | // Copyright 2005 Wolfson Microelectronics PLC. | |
6 | // Copyright 2005 Openedhand Ltd. | |
7 | // Copyright (C) 2010 Slimlogic Ltd. | |
8 | // Copyright (C) 2010 Texas Instruments Inc. | |
9 | // | |
10 | // Authors: Liam Girdwood <lrg@ti.com> | |
11 | // Mark Brown <broonie@opensource.wolfsonmicro.com> | |
ddee627c LG |
12 | |
13 | #include <linux/kernel.h> | |
14 | #include <linux/init.h> | |
15 | #include <linux/delay.h> | |
988e8cc4 | 16 | #include <linux/pinctrl/consumer.h> |
d6652ef8 | 17 | #include <linux/pm_runtime.h> |
ddee627c LG |
18 | #include <linux/slab.h> |
19 | #include <linux/workqueue.h> | |
01d7584c | 20 | #include <linux/export.h> |
f86dcef8 | 21 | #include <linux/debugfs.h> |
ddee627c LG |
22 | #include <sound/core.h> |
23 | #include <sound/pcm.h> | |
24 | #include <sound/pcm_params.h> | |
25 | #include <sound/soc.h> | |
01d7584c | 26 | #include <sound/soc-dpcm.h> |
ddee627c LG |
27 | #include <sound/initval.h> |
28 | ||
01d7584c LG |
29 | #define DPCM_MAX_BE_USERS 8 |
30 | ||
f183f927 KM |
31 | static int soc_rtd_startup(struct snd_soc_pcm_runtime *rtd, |
32 | struct snd_pcm_substream *substream) | |
33 | { | |
34 | if (rtd->dai_link->ops && | |
35 | rtd->dai_link->ops->startup) | |
36 | return rtd->dai_link->ops->startup(substream); | |
37 | return 0; | |
38 | } | |
39 | ||
0be429f9 KM |
40 | static void soc_rtd_shutdown(struct snd_soc_pcm_runtime *rtd, |
41 | struct snd_pcm_substream *substream) | |
42 | { | |
43 | if (rtd->dai_link->ops && | |
44 | rtd->dai_link->ops->shutdown) | |
45 | rtd->dai_link->ops->shutdown(substream); | |
46 | } | |
47 | ||
44c1a75b KM |
48 | static int soc_rtd_prepare(struct snd_soc_pcm_runtime *rtd, |
49 | struct snd_pcm_substream *substream) | |
50 | { | |
51 | if (rtd->dai_link->ops && | |
52 | rtd->dai_link->ops->prepare) | |
53 | return rtd->dai_link->ops->prepare(substream); | |
54 | return 0; | |
55 | } | |
56 | ||
de9ad990 KM |
57 | static int soc_rtd_hw_params(struct snd_soc_pcm_runtime *rtd, |
58 | struct snd_pcm_substream *substream, | |
59 | struct snd_pcm_hw_params *params) | |
60 | { | |
61 | if (rtd->dai_link->ops && | |
62 | rtd->dai_link->ops->hw_params) | |
63 | return rtd->dai_link->ops->hw_params(substream, params); | |
64 | return 0; | |
65 | } | |
66 | ||
49f020e5 KM |
67 | static void soc_rtd_hw_free(struct snd_soc_pcm_runtime *rtd, |
68 | struct snd_pcm_substream *substream) | |
69 | { | |
70 | if (rtd->dai_link->ops && | |
71 | rtd->dai_link->ops->hw_free) | |
72 | rtd->dai_link->ops->hw_free(substream); | |
73 | } | |
74 | ||
ad2bf9f2 KM |
75 | static int soc_rtd_trigger(struct snd_soc_pcm_runtime *rtd, |
76 | struct snd_pcm_substream *substream, | |
77 | int cmd) | |
78 | { | |
79 | if (rtd->dai_link->ops && | |
80 | rtd->dai_link->ops->trigger) | |
81 | return rtd->dai_link->ops->trigger(substream, cmd); | |
82 | return 0; | |
83 | } | |
84 | ||
24894b76 LPC |
85 | /** |
86 | * snd_soc_runtime_activate() - Increment active count for PCM runtime components | |
87 | * @rtd: ASoC PCM runtime that is activated | |
88 | * @stream: Direction of the PCM stream | |
89 | * | |
90 | * Increments the active count for all the DAIs and components attached to a PCM | |
91 | * runtime. Should typically be called when a stream is opened. | |
92 | * | |
72b745e3 | 93 | * Must be called with the rtd->card->pcm_mutex being held |
24894b76 LPC |
94 | */ |
95 | void snd_soc_runtime_activate(struct snd_soc_pcm_runtime *rtd, int stream) | |
96 | { | |
97 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
0b7990e3 | 98 | struct snd_soc_dai *codec_dai; |
2e5894d7 | 99 | int i; |
24894b76 | 100 | |
72b745e3 | 101 | lockdep_assert_held(&rtd->card->pcm_mutex); |
24894b76 LPC |
102 | |
103 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) { | |
104 | cpu_dai->playback_active++; | |
0b7990e3 KM |
105 | for_each_rtd_codec_dai(rtd, i, codec_dai) |
106 | codec_dai->playback_active++; | |
24894b76 LPC |
107 | } else { |
108 | cpu_dai->capture_active++; | |
0b7990e3 KM |
109 | for_each_rtd_codec_dai(rtd, i, codec_dai) |
110 | codec_dai->capture_active++; | |
24894b76 LPC |
111 | } |
112 | ||
113 | cpu_dai->active++; | |
cdde4ccb | 114 | cpu_dai->component->active++; |
0b7990e3 KM |
115 | for_each_rtd_codec_dai(rtd, i, codec_dai) { |
116 | codec_dai->active++; | |
117 | codec_dai->component->active++; | |
2e5894d7 | 118 | } |
24894b76 LPC |
119 | } |
120 | ||
121 | /** | |
122 | * snd_soc_runtime_deactivate() - Decrement active count for PCM runtime components | |
123 | * @rtd: ASoC PCM runtime that is deactivated | |
124 | * @stream: Direction of the PCM stream | |
125 | * | |
126 | * Decrements the active count for all the DAIs and components attached to a PCM | |
127 | * runtime. Should typically be called when a stream is closed. | |
128 | * | |
72b745e3 | 129 | * Must be called with the rtd->card->pcm_mutex being held |
24894b76 LPC |
130 | */ |
131 | void snd_soc_runtime_deactivate(struct snd_soc_pcm_runtime *rtd, int stream) | |
132 | { | |
133 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
0b7990e3 | 134 | struct snd_soc_dai *codec_dai; |
2e5894d7 | 135 | int i; |
24894b76 | 136 | |
72b745e3 | 137 | lockdep_assert_held(&rtd->card->pcm_mutex); |
24894b76 LPC |
138 | |
139 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) { | |
140 | cpu_dai->playback_active--; | |
0b7990e3 KM |
141 | for_each_rtd_codec_dai(rtd, i, codec_dai) |
142 | codec_dai->playback_active--; | |
24894b76 LPC |
143 | } else { |
144 | cpu_dai->capture_active--; | |
0b7990e3 KM |
145 | for_each_rtd_codec_dai(rtd, i, codec_dai) |
146 | codec_dai->capture_active--; | |
24894b76 LPC |
147 | } |
148 | ||
149 | cpu_dai->active--; | |
cdde4ccb | 150 | cpu_dai->component->active--; |
0b7990e3 KM |
151 | for_each_rtd_codec_dai(rtd, i, codec_dai) { |
152 | codec_dai->component->active--; | |
153 | codec_dai->active--; | |
2e5894d7 | 154 | } |
24894b76 LPC |
155 | } |
156 | ||
208a1589 LPC |
157 | /** |
158 | * snd_soc_runtime_ignore_pmdown_time() - Check whether to ignore the power down delay | |
159 | * @rtd: The ASoC PCM runtime that should be checked. | |
160 | * | |
161 | * This function checks whether the power down delay should be ignored for a | |
162 | * specific PCM runtime. Returns true if the delay is 0, if it the DAI link has | |
163 | * been configured to ignore the delay, or if none of the components benefits | |
164 | * from having the delay. | |
165 | */ | |
166 | bool snd_soc_runtime_ignore_pmdown_time(struct snd_soc_pcm_runtime *rtd) | |
167 | { | |
fbb16563 | 168 | struct snd_soc_component *component; |
2e5894d7 | 169 | bool ignore = true; |
613fb500 | 170 | int i; |
2e5894d7 | 171 | |
208a1589 LPC |
172 | if (!rtd->pmdown_time || rtd->dai_link->ignore_pmdown_time) |
173 | return true; | |
174 | ||
613fb500 | 175 | for_each_rtd_components(rtd, i, component) |
72c38184 | 176 | ignore &= !component->driver->use_pmdown_time; |
fbb16563 | 177 | |
fbb16563 | 178 | return ignore; |
208a1589 LPC |
179 | } |
180 | ||
90996f43 LPC |
181 | /** |
182 | * snd_soc_set_runtime_hwparams - set the runtime hardware parameters | |
183 | * @substream: the pcm substream | |
184 | * @hw: the hardware parameters | |
185 | * | |
186 | * Sets the substream runtime hardware parameters. | |
187 | */ | |
188 | int snd_soc_set_runtime_hwparams(struct snd_pcm_substream *substream, | |
189 | const struct snd_pcm_hardware *hw) | |
190 | { | |
191 | struct snd_pcm_runtime *runtime = substream->runtime; | |
192 | runtime->hw.info = hw->info; | |
193 | runtime->hw.formats = hw->formats; | |
194 | runtime->hw.period_bytes_min = hw->period_bytes_min; | |
195 | runtime->hw.period_bytes_max = hw->period_bytes_max; | |
196 | runtime->hw.periods_min = hw->periods_min; | |
197 | runtime->hw.periods_max = hw->periods_max; | |
198 | runtime->hw.buffer_bytes_max = hw->buffer_bytes_max; | |
199 | runtime->hw.fifo_size = hw->fifo_size; | |
200 | return 0; | |
201 | } | |
202 | EXPORT_SYMBOL_GPL(snd_soc_set_runtime_hwparams); | |
203 | ||
01d7584c | 204 | /* DPCM stream event, send event to FE and all active BEs. */ |
23607025 | 205 | int dpcm_dapm_stream_event(struct snd_soc_pcm_runtime *fe, int dir, |
01d7584c LG |
206 | int event) |
207 | { | |
208 | struct snd_soc_dpcm *dpcm; | |
209 | ||
8d6258a4 | 210 | for_each_dpcm_be(fe, dir, dpcm) { |
01d7584c LG |
211 | |
212 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
213 | ||
103d84a3 | 214 | dev_dbg(be->dev, "ASoC: BE %s event %d dir %d\n", |
01d7584c LG |
215 | be->dai_link->name, event, dir); |
216 | ||
b1cd2e34 BG |
217 | if ((event == SND_SOC_DAPM_STREAM_STOP) && |
218 | (be->dpcm[dir].users >= 1)) | |
219 | continue; | |
220 | ||
01d7584c LG |
221 | snd_soc_dapm_stream_event(be, dir, event); |
222 | } | |
223 | ||
224 | snd_soc_dapm_stream_event(fe, dir, event); | |
225 | ||
226 | return 0; | |
227 | } | |
228 | ||
17841020 DA |
229 | static int soc_pcm_apply_symmetry(struct snd_pcm_substream *substream, |
230 | struct snd_soc_dai *soc_dai) | |
ddee627c LG |
231 | { |
232 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
ddee627c LG |
233 | int ret; |
234 | ||
3635bf09 NC |
235 | if (soc_dai->rate && (soc_dai->driver->symmetric_rates || |
236 | rtd->dai_link->symmetric_rates)) { | |
237 | dev_dbg(soc_dai->dev, "ASoC: Symmetry forces %dHz rate\n", | |
238 | soc_dai->rate); | |
239 | ||
4dcdd43b | 240 | ret = snd_pcm_hw_constraint_single(substream->runtime, |
3635bf09 | 241 | SNDRV_PCM_HW_PARAM_RATE, |
4dcdd43b | 242 | soc_dai->rate); |
3635bf09 NC |
243 | if (ret < 0) { |
244 | dev_err(soc_dai->dev, | |
245 | "ASoC: Unable to apply rate constraint: %d\n", | |
246 | ret); | |
247 | return ret; | |
248 | } | |
249 | } | |
ddee627c | 250 | |
3635bf09 NC |
251 | if (soc_dai->channels && (soc_dai->driver->symmetric_channels || |
252 | rtd->dai_link->symmetric_channels)) { | |
253 | dev_dbg(soc_dai->dev, "ASoC: Symmetry forces %d channel(s)\n", | |
254 | soc_dai->channels); | |
ddee627c | 255 | |
4dcdd43b | 256 | ret = snd_pcm_hw_constraint_single(substream->runtime, |
3635bf09 | 257 | SNDRV_PCM_HW_PARAM_CHANNELS, |
3635bf09 NC |
258 | soc_dai->channels); |
259 | if (ret < 0) { | |
260 | dev_err(soc_dai->dev, | |
261 | "ASoC: Unable to apply channel symmetry constraint: %d\n", | |
262 | ret); | |
263 | return ret; | |
264 | } | |
ddee627c LG |
265 | } |
266 | ||
3635bf09 NC |
267 | if (soc_dai->sample_bits && (soc_dai->driver->symmetric_samplebits || |
268 | rtd->dai_link->symmetric_samplebits)) { | |
269 | dev_dbg(soc_dai->dev, "ASoC: Symmetry forces %d sample bits\n", | |
270 | soc_dai->sample_bits); | |
ddee627c | 271 | |
4dcdd43b | 272 | ret = snd_pcm_hw_constraint_single(substream->runtime, |
3635bf09 | 273 | SNDRV_PCM_HW_PARAM_SAMPLE_BITS, |
3635bf09 NC |
274 | soc_dai->sample_bits); |
275 | if (ret < 0) { | |
276 | dev_err(soc_dai->dev, | |
277 | "ASoC: Unable to apply sample bits symmetry constraint: %d\n", | |
278 | ret); | |
279 | return ret; | |
280 | } | |
ddee627c LG |
281 | } |
282 | ||
283 | return 0; | |
284 | } | |
285 | ||
3635bf09 NC |
286 | static int soc_pcm_params_symmetry(struct snd_pcm_substream *substream, |
287 | struct snd_pcm_hw_params *params) | |
288 | { | |
289 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
290 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
0b7990e3 | 291 | struct snd_soc_dai *codec_dai; |
2e5894d7 | 292 | unsigned int rate, channels, sample_bits, symmetry, i; |
3635bf09 NC |
293 | |
294 | rate = params_rate(params); | |
295 | channels = params_channels(params); | |
296 | sample_bits = snd_pcm_format_physical_width(params_format(params)); | |
297 | ||
298 | /* reject unmatched parameters when applying symmetry */ | |
299 | symmetry = cpu_dai->driver->symmetric_rates || | |
3635bf09 | 300 | rtd->dai_link->symmetric_rates; |
2e5894d7 | 301 | |
0b7990e3 KM |
302 | for_each_rtd_codec_dai(rtd, i, codec_dai) |
303 | symmetry |= codec_dai->driver->symmetric_rates; | |
2e5894d7 | 304 | |
3635bf09 NC |
305 | if (symmetry && cpu_dai->rate && cpu_dai->rate != rate) { |
306 | dev_err(rtd->dev, "ASoC: unmatched rate symmetry: %d - %d\n", | |
307 | cpu_dai->rate, rate); | |
308 | return -EINVAL; | |
ddee627c LG |
309 | } |
310 | ||
3635bf09 | 311 | symmetry = cpu_dai->driver->symmetric_channels || |
3635bf09 | 312 | rtd->dai_link->symmetric_channels; |
2e5894d7 | 313 | |
0b7990e3 KM |
314 | for_each_rtd_codec_dai(rtd, i, codec_dai) |
315 | symmetry |= codec_dai->driver->symmetric_channels; | |
2e5894d7 | 316 | |
3635bf09 NC |
317 | if (symmetry && cpu_dai->channels && cpu_dai->channels != channels) { |
318 | dev_err(rtd->dev, "ASoC: unmatched channel symmetry: %d - %d\n", | |
319 | cpu_dai->channels, channels); | |
320 | return -EINVAL; | |
321 | } | |
ddee627c | 322 | |
3635bf09 | 323 | symmetry = cpu_dai->driver->symmetric_samplebits || |
3635bf09 | 324 | rtd->dai_link->symmetric_samplebits; |
2e5894d7 | 325 | |
0b7990e3 KM |
326 | for_each_rtd_codec_dai(rtd, i, codec_dai) |
327 | symmetry |= codec_dai->driver->symmetric_samplebits; | |
2e5894d7 | 328 | |
3635bf09 NC |
329 | if (symmetry && cpu_dai->sample_bits && cpu_dai->sample_bits != sample_bits) { |
330 | dev_err(rtd->dev, "ASoC: unmatched sample bits symmetry: %d - %d\n", | |
331 | cpu_dai->sample_bits, sample_bits); | |
332 | return -EINVAL; | |
ddee627c LG |
333 | } |
334 | ||
335 | return 0; | |
336 | } | |
337 | ||
62e5f676 LPC |
338 | static bool soc_pcm_has_symmetry(struct snd_pcm_substream *substream) |
339 | { | |
340 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
341 | struct snd_soc_dai_driver *cpu_driver = rtd->cpu_dai->driver; | |
62e5f676 | 342 | struct snd_soc_dai_link *link = rtd->dai_link; |
0b7990e3 | 343 | struct snd_soc_dai *codec_dai; |
2e5894d7 | 344 | unsigned int symmetry, i; |
62e5f676 | 345 | |
2e5894d7 BC |
346 | symmetry = cpu_driver->symmetric_rates || link->symmetric_rates || |
347 | cpu_driver->symmetric_channels || link->symmetric_channels || | |
348 | cpu_driver->symmetric_samplebits || link->symmetric_samplebits; | |
62e5f676 | 349 | |
0b7990e3 | 350 | for_each_rtd_codec_dai(rtd, i, codec_dai) |
2e5894d7 | 351 | symmetry = symmetry || |
0b7990e3 KM |
352 | codec_dai->driver->symmetric_rates || |
353 | codec_dai->driver->symmetric_channels || | |
354 | codec_dai->driver->symmetric_samplebits; | |
2e5894d7 BC |
355 | |
356 | return symmetry; | |
62e5f676 LPC |
357 | } |
358 | ||
2e5894d7 | 359 | static void soc_pcm_set_msb(struct snd_pcm_substream *substream, int bits) |
58ba9b25 | 360 | { |
2e5894d7 | 361 | struct snd_soc_pcm_runtime *rtd = substream->private_data; |
c6068d3a | 362 | int ret; |
58ba9b25 MB |
363 | |
364 | if (!bits) | |
365 | return; | |
366 | ||
0e2a3751 LPC |
367 | ret = snd_pcm_hw_constraint_msbits(substream->runtime, 0, 0, bits); |
368 | if (ret != 0) | |
369 | dev_warn(rtd->dev, "ASoC: Failed to set MSB %d: %d\n", | |
370 | bits, ret); | |
58ba9b25 MB |
371 | } |
372 | ||
c8dd1fec BC |
373 | static void soc_pcm_apply_msb(struct snd_pcm_substream *substream) |
374 | { | |
375 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
376 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
2e5894d7 BC |
377 | struct snd_soc_dai *codec_dai; |
378 | int i; | |
c8dd1fec BC |
379 | unsigned int bits = 0, cpu_bits; |
380 | ||
381 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { | |
0b7990e3 | 382 | for_each_rtd_codec_dai(rtd, i, codec_dai) { |
2e5894d7 BC |
383 | if (codec_dai->driver->playback.sig_bits == 0) { |
384 | bits = 0; | |
385 | break; | |
386 | } | |
387 | bits = max(codec_dai->driver->playback.sig_bits, bits); | |
388 | } | |
c8dd1fec BC |
389 | cpu_bits = cpu_dai->driver->playback.sig_bits; |
390 | } else { | |
0b7990e3 | 391 | for_each_rtd_codec_dai(rtd, i, codec_dai) { |
5e63dfcc | 392 | if (codec_dai->driver->capture.sig_bits == 0) { |
2e5894d7 BC |
393 | bits = 0; |
394 | break; | |
395 | } | |
396 | bits = max(codec_dai->driver->capture.sig_bits, bits); | |
397 | } | |
c8dd1fec BC |
398 | cpu_bits = cpu_dai->driver->capture.sig_bits; |
399 | } | |
400 | ||
2e5894d7 BC |
401 | soc_pcm_set_msb(substream, bits); |
402 | soc_pcm_set_msb(substream, cpu_bits); | |
c8dd1fec BC |
403 | } |
404 | ||
2e5894d7 | 405 | static void soc_pcm_init_runtime_hw(struct snd_pcm_substream *substream) |
bd477c31 | 406 | { |
2e5894d7 | 407 | struct snd_pcm_runtime *runtime = substream->runtime; |
78e45c99 | 408 | struct snd_pcm_hardware *hw = &runtime->hw; |
2e5894d7 | 409 | struct snd_soc_pcm_runtime *rtd = substream->private_data; |
0b7990e3 | 410 | struct snd_soc_dai *codec_dai; |
2e5894d7 BC |
411 | struct snd_soc_dai_driver *cpu_dai_drv = rtd->cpu_dai->driver; |
412 | struct snd_soc_dai_driver *codec_dai_drv; | |
413 | struct snd_soc_pcm_stream *codec_stream; | |
414 | struct snd_soc_pcm_stream *cpu_stream; | |
415 | unsigned int chan_min = 0, chan_max = UINT_MAX; | |
416 | unsigned int rate_min = 0, rate_max = UINT_MAX; | |
417 | unsigned int rates = UINT_MAX; | |
418 | u64 formats = ULLONG_MAX; | |
419 | int i; | |
78e45c99 | 420 | |
2e5894d7 BC |
421 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) |
422 | cpu_stream = &cpu_dai_drv->playback; | |
16d7ea91 | 423 | else |
2e5894d7 | 424 | cpu_stream = &cpu_dai_drv->capture; |
78e45c99 | 425 | |
2e5894d7 | 426 | /* first calculate min/max only for CODECs in the DAI link */ |
0b7990e3 | 427 | for_each_rtd_codec_dai(rtd, i, codec_dai) { |
cde79035 RW |
428 | |
429 | /* | |
430 | * Skip CODECs which don't support the current stream type. | |
431 | * Otherwise, since the rate, channel, and format values will | |
432 | * zero in that case, we would have no usable settings left, | |
433 | * causing the resulting setup to fail. | |
434 | * At least one CODEC should match, otherwise we should have | |
435 | * bailed out on a higher level, since there would be no | |
436 | * CODEC to support the transfer direction in that case. | |
437 | */ | |
0b7990e3 | 438 | if (!snd_soc_dai_stream_valid(codec_dai, |
cde79035 RW |
439 | substream->stream)) |
440 | continue; | |
441 | ||
0b7990e3 | 442 | codec_dai_drv = codec_dai->driver; |
2e5894d7 BC |
443 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) |
444 | codec_stream = &codec_dai_drv->playback; | |
445 | else | |
446 | codec_stream = &codec_dai_drv->capture; | |
447 | chan_min = max(chan_min, codec_stream->channels_min); | |
448 | chan_max = min(chan_max, codec_stream->channels_max); | |
449 | rate_min = max(rate_min, codec_stream->rate_min); | |
450 | rate_max = min_not_zero(rate_max, codec_stream->rate_max); | |
451 | formats &= codec_stream->formats; | |
452 | rates = snd_pcm_rate_mask_intersect(codec_stream->rates, rates); | |
453 | } | |
454 | ||
455 | /* | |
456 | * chan min/max cannot be enforced if there are multiple CODEC DAIs | |
457 | * connected to a single CPU DAI, use CPU DAI's directly and let | |
458 | * channel allocation be fixed up later | |
459 | */ | |
460 | if (rtd->num_codecs > 1) { | |
461 | chan_min = cpu_stream->channels_min; | |
462 | chan_max = cpu_stream->channels_max; | |
463 | } | |
464 | ||
465 | hw->channels_min = max(chan_min, cpu_stream->channels_min); | |
466 | hw->channels_max = min(chan_max, cpu_stream->channels_max); | |
467 | if (hw->formats) | |
468 | hw->formats &= formats & cpu_stream->formats; | |
469 | else | |
470 | hw->formats = formats & cpu_stream->formats; | |
471 | hw->rates = snd_pcm_rate_mask_intersect(rates, cpu_stream->rates); | |
78e45c99 LPC |
472 | |
473 | snd_pcm_limit_hw_rates(runtime); | |
474 | ||
475 | hw->rate_min = max(hw->rate_min, cpu_stream->rate_min); | |
2e5894d7 | 476 | hw->rate_min = max(hw->rate_min, rate_min); |
78e45c99 | 477 | hw->rate_max = min_not_zero(hw->rate_max, cpu_stream->rate_max); |
2e5894d7 | 478 | hw->rate_max = min_not_zero(hw->rate_max, rate_max); |
bd477c31 LPC |
479 | } |
480 | ||
e7ecfdb7 KM |
481 | static int soc_pcm_components_open(struct snd_pcm_substream *substream, |
482 | struct snd_soc_component **last) | |
483 | { | |
484 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
e7ecfdb7 | 485 | struct snd_soc_component *component; |
613fb500 | 486 | int i, ret = 0; |
e7ecfdb7 | 487 | |
613fb500 | 488 | for_each_rtd_components(rtd, i, component) { |
e7ecfdb7 KM |
489 | *last = component; |
490 | ||
4a81e8f3 KM |
491 | ret = snd_soc_component_module_get_when_open(component); |
492 | if (ret < 0) { | |
e7ecfdb7 KM |
493 | dev_err(component->dev, |
494 | "ASoC: can't get module %s\n", | |
495 | component->name); | |
4a81e8f3 | 496 | return ret; |
e7ecfdb7 KM |
497 | } |
498 | ||
ae2f4849 | 499 | ret = snd_soc_component_open(component, substream); |
e7ecfdb7 KM |
500 | if (ret < 0) { |
501 | dev_err(component->dev, | |
502 | "ASoC: can't open component %s: %d\n", | |
503 | component->name, ret); | |
504 | return ret; | |
505 | } | |
506 | } | |
507 | *last = NULL; | |
508 | return 0; | |
509 | } | |
510 | ||
244e2936 CK |
511 | static int soc_pcm_components_close(struct snd_pcm_substream *substream, |
512 | struct snd_soc_component *last) | |
513 | { | |
514 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
244e2936 | 515 | struct snd_soc_component *component; |
613fb500 | 516 | int i, ret = 0; |
244e2936 | 517 | |
613fb500 | 518 | for_each_rtd_components(rtd, i, component) { |
244e2936 CK |
519 | if (component == last) |
520 | break; | |
521 | ||
3672beb8 | 522 | ret |= snd_soc_component_close(component, substream); |
4a81e8f3 | 523 | snd_soc_component_module_put_when_close(component); |
244e2936 CK |
524 | } |
525 | ||
3672beb8 | 526 | return ret; |
244e2936 CK |
527 | } |
528 | ||
ddee627c LG |
529 | /* |
530 | * Called by ALSA when a PCM substream is opened, the runtime->hw record is | |
531 | * then initialized and any private data can be allocated. This also calls | |
ef050bec | 532 | * startup for the cpu DAI, component, machine and codec DAI. |
ddee627c LG |
533 | */ |
534 | static int soc_pcm_open(struct snd_pcm_substream *substream) | |
535 | { | |
536 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
537 | struct snd_pcm_runtime *runtime = substream->runtime; | |
90be711e | 538 | struct snd_soc_component *component; |
ddee627c | 539 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
2e5894d7 BC |
540 | struct snd_soc_dai *codec_dai; |
541 | const char *codec_dai_name = "multicodec"; | |
244e2936 | 542 | int i, ret = 0; |
ddee627c | 543 | |
76c39e86 KM |
544 | for_each_rtd_components(rtd, i, component) |
545 | pinctrl_pm_select_default_state(component->dev); | |
90be711e | 546 | |
613fb500 | 547 | for_each_rtd_components(rtd, i, component) |
90be711e | 548 | pm_runtime_get_sync(component->dev); |
d6652ef8 | 549 | |
72b745e3 | 550 | mutex_lock_nested(&rtd->card->pcm_mutex, rtd->card->pcm_subclass); |
ddee627c LG |
551 | |
552 | /* startup the audio subsystem */ | |
5a52a045 KM |
553 | ret = snd_soc_dai_startup(cpu_dai, substream); |
554 | if (ret < 0) { | |
555 | dev_err(cpu_dai->dev, "ASoC: can't open interface %s: %d\n", | |
556 | cpu_dai->name, ret); | |
557 | goto out; | |
ddee627c LG |
558 | } |
559 | ||
e7ecfdb7 KM |
560 | ret = soc_pcm_components_open(substream, &component); |
561 | if (ret < 0) | |
562 | goto component_err; | |
b8135864 | 563 | |
0b7990e3 | 564 | for_each_rtd_codec_dai(rtd, i, codec_dai) { |
5a52a045 KM |
565 | ret = snd_soc_dai_startup(codec_dai, substream); |
566 | if (ret < 0) { | |
567 | dev_err(codec_dai->dev, | |
568 | "ASoC: can't open codec %s: %d\n", | |
569 | codec_dai->name, ret); | |
570 | goto codec_dai_err; | |
ddee627c | 571 | } |
2e5894d7 BC |
572 | |
573 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) | |
574 | codec_dai->tx_mask = 0; | |
575 | else | |
576 | codec_dai->rx_mask = 0; | |
ddee627c LG |
577 | } |
578 | ||
f183f927 KM |
579 | ret = soc_rtd_startup(rtd, substream); |
580 | if (ret < 0) { | |
581 | pr_err("ASoC: %s startup failed: %d\n", | |
582 | rtd->dai_link->name, ret); | |
583 | goto machine_err; | |
ddee627c LG |
584 | } |
585 | ||
01d7584c LG |
586 | /* Dynamic PCM DAI links compat checks use dynamic capabilities */ |
587 | if (rtd->dai_link->dynamic || rtd->dai_link->no_pcm) | |
588 | goto dynamic; | |
589 | ||
ddee627c | 590 | /* Check that the codec and cpu DAIs are compatible */ |
2e5894d7 BC |
591 | soc_pcm_init_runtime_hw(substream); |
592 | ||
593 | if (rtd->num_codecs == 1) | |
594 | codec_dai_name = rtd->codec_dai->name; | |
ddee627c | 595 | |
62e5f676 LPC |
596 | if (soc_pcm_has_symmetry(substream)) |
597 | runtime->hw.info |= SNDRV_PCM_INFO_JOINT_DUPLEX; | |
598 | ||
ddee627c | 599 | ret = -EINVAL; |
ddee627c | 600 | if (!runtime->hw.rates) { |
103d84a3 | 601 | printk(KERN_ERR "ASoC: %s <-> %s No matching rates\n", |
2e5894d7 | 602 | codec_dai_name, cpu_dai->name); |
ddee627c LG |
603 | goto config_err; |
604 | } | |
605 | if (!runtime->hw.formats) { | |
103d84a3 | 606 | printk(KERN_ERR "ASoC: %s <-> %s No matching formats\n", |
2e5894d7 | 607 | codec_dai_name, cpu_dai->name); |
ddee627c LG |
608 | goto config_err; |
609 | } | |
610 | if (!runtime->hw.channels_min || !runtime->hw.channels_max || | |
611 | runtime->hw.channels_min > runtime->hw.channels_max) { | |
103d84a3 | 612 | printk(KERN_ERR "ASoC: %s <-> %s No matching channels\n", |
2e5894d7 | 613 | codec_dai_name, cpu_dai->name); |
ddee627c LG |
614 | goto config_err; |
615 | } | |
616 | ||
c8dd1fec | 617 | soc_pcm_apply_msb(substream); |
58ba9b25 | 618 | |
ddee627c | 619 | /* Symmetry only applies if we've already got an active stream. */ |
17841020 DA |
620 | if (cpu_dai->active) { |
621 | ret = soc_pcm_apply_symmetry(substream, cpu_dai); | |
622 | if (ret != 0) | |
623 | goto config_err; | |
624 | } | |
625 | ||
0b7990e3 KM |
626 | for_each_rtd_codec_dai(rtd, i, codec_dai) { |
627 | if (codec_dai->active) { | |
628 | ret = soc_pcm_apply_symmetry(substream, codec_dai); | |
2e5894d7 BC |
629 | if (ret != 0) |
630 | goto config_err; | |
631 | } | |
ddee627c LG |
632 | } |
633 | ||
103d84a3 | 634 | pr_debug("ASoC: %s <-> %s info:\n", |
2e5894d7 | 635 | codec_dai_name, cpu_dai->name); |
103d84a3 LG |
636 | pr_debug("ASoC: rate mask 0x%x\n", runtime->hw.rates); |
637 | pr_debug("ASoC: min ch %d max ch %d\n", runtime->hw.channels_min, | |
ddee627c | 638 | runtime->hw.channels_max); |
103d84a3 | 639 | pr_debug("ASoC: min rate %d max rate %d\n", runtime->hw.rate_min, |
ddee627c LG |
640 | runtime->hw.rate_max); |
641 | ||
01d7584c | 642 | dynamic: |
24894b76 LPC |
643 | |
644 | snd_soc_runtime_activate(rtd, substream->stream); | |
645 | ||
72b745e3 | 646 | mutex_unlock(&rtd->card->pcm_mutex); |
ddee627c LG |
647 | return 0; |
648 | ||
649 | config_err: | |
0be429f9 | 650 | soc_rtd_shutdown(rtd, substream); |
ddee627c LG |
651 | |
652 | machine_err: | |
2e5894d7 | 653 | i = rtd->num_codecs; |
ddee627c LG |
654 | |
655 | codec_dai_err: | |
330fcb51 KM |
656 | for_each_rtd_codec_dai_rollback(rtd, i, codec_dai) |
657 | snd_soc_dai_shutdown(codec_dai, substream); | |
2e5894d7 | 658 | |
b8135864 | 659 | component_err: |
244e2936 | 660 | soc_pcm_components_close(substream, component); |
e7ecfdb7 | 661 | |
330fcb51 | 662 | snd_soc_dai_shutdown(cpu_dai, substream); |
ddee627c | 663 | out: |
72b745e3 | 664 | mutex_unlock(&rtd->card->pcm_mutex); |
d6652ef8 | 665 | |
613fb500 | 666 | for_each_rtd_components(rtd, i, component) { |
90be711e KM |
667 | pm_runtime_mark_last_busy(component->dev); |
668 | pm_runtime_put_autosuspend(component->dev); | |
3f809783 SK |
669 | } |
670 | ||
76c39e86 KM |
671 | for_each_rtd_components(rtd, i, component) |
672 | if (!component->active) | |
673 | pinctrl_pm_select_sleep_state(component->dev); | |
d6652ef8 | 674 | |
ddee627c LG |
675 | return ret; |
676 | } | |
677 | ||
4bf2e385 | 678 | static void codec2codec_close_delayed_work(struct snd_soc_pcm_runtime *rtd) |
a342031c JB |
679 | { |
680 | /* | |
681 | * Currently nothing to do for c2c links | |
682 | * Since c2c links are internal nodes in the DAPM graph and | |
683 | * don't interface with the outside world or application layer | |
684 | * we don't have to do any special handling on close. | |
685 | */ | |
686 | } | |
687 | ||
ddee627c LG |
688 | /* |
689 | * Called by ALSA when a PCM substream is closed. Private data can be | |
ef050bec | 690 | * freed here. The cpu DAI, codec DAI, machine and components are also |
ddee627c LG |
691 | * shutdown. |
692 | */ | |
91d5e6b4 | 693 | static int soc_pcm_close(struct snd_pcm_substream *substream) |
ddee627c LG |
694 | { |
695 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
90be711e | 696 | struct snd_soc_component *component; |
ddee627c | 697 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
2e5894d7 BC |
698 | struct snd_soc_dai *codec_dai; |
699 | int i; | |
ddee627c | 700 | |
72b745e3 | 701 | mutex_lock_nested(&rtd->card->pcm_mutex, rtd->card->pcm_subclass); |
ddee627c | 702 | |
24894b76 | 703 | snd_soc_runtime_deactivate(rtd, substream->stream); |
ddee627c | 704 | |
17841020 DA |
705 | /* clear the corresponding DAIs rate when inactive */ |
706 | if (!cpu_dai->active) | |
707 | cpu_dai->rate = 0; | |
708 | ||
0b7990e3 | 709 | for_each_rtd_codec_dai(rtd, i, codec_dai) { |
2e5894d7 BC |
710 | if (!codec_dai->active) |
711 | codec_dai->rate = 0; | |
712 | } | |
25b76791 | 713 | |
ae11601b RB |
714 | snd_soc_dai_digital_mute(cpu_dai, 1, substream->stream); |
715 | ||
330fcb51 | 716 | snd_soc_dai_shutdown(cpu_dai, substream); |
ddee627c | 717 | |
330fcb51 KM |
718 | for_each_rtd_codec_dai(rtd, i, codec_dai) |
719 | snd_soc_dai_shutdown(codec_dai, substream); | |
ddee627c | 720 | |
0be429f9 | 721 | soc_rtd_shutdown(rtd, substream); |
ddee627c | 722 | |
244e2936 | 723 | soc_pcm_components_close(substream, NULL); |
b8135864 | 724 | |
3f4cf797 | 725 | snd_soc_dapm_stream_stop(rtd, substream->stream); |
ddee627c | 726 | |
72b745e3 | 727 | mutex_unlock(&rtd->card->pcm_mutex); |
d6652ef8 | 728 | |
613fb500 | 729 | for_each_rtd_components(rtd, i, component) { |
90be711e KM |
730 | pm_runtime_mark_last_busy(component->dev); |
731 | pm_runtime_put_autosuspend(component->dev); | |
3f809783 SK |
732 | } |
733 | ||
76c39e86 KM |
734 | for_each_rtd_components(rtd, i, component) |
735 | if (!component->active) | |
736 | pinctrl_pm_select_sleep_state(component->dev); | |
d6652ef8 | 737 | |
ddee627c LG |
738 | return 0; |
739 | } | |
740 | ||
741 | /* | |
742 | * Called by ALSA when the PCM substream is prepared, can set format, sample | |
743 | * rate, etc. This function is non atomic and can be called multiple times, | |
744 | * it can refer to the runtime info. | |
745 | */ | |
746 | static int soc_pcm_prepare(struct snd_pcm_substream *substream) | |
747 | { | |
748 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
b8135864 | 749 | struct snd_soc_component *component; |
ddee627c | 750 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
2e5894d7 BC |
751 | struct snd_soc_dai *codec_dai; |
752 | int i, ret = 0; | |
ddee627c | 753 | |
72b745e3 | 754 | mutex_lock_nested(&rtd->card->pcm_mutex, rtd->card->pcm_subclass); |
ddee627c | 755 | |
44c1a75b KM |
756 | ret = soc_rtd_prepare(rtd, substream); |
757 | if (ret < 0) { | |
758 | dev_err(rtd->card->dev, | |
759 | "ASoC: machine prepare error: %d\n", ret); | |
760 | goto out; | |
ddee627c LG |
761 | } |
762 | ||
613fb500 | 763 | for_each_rtd_components(rtd, i, component) { |
6d537233 | 764 | ret = snd_soc_component_prepare(component, substream); |
b8135864 KM |
765 | if (ret < 0) { |
766 | dev_err(component->dev, | |
767 | "ASoC: platform prepare error: %d\n", ret); | |
768 | goto out; | |
769 | } | |
770 | } | |
771 | ||
0b7990e3 | 772 | for_each_rtd_codec_dai(rtd, i, codec_dai) { |
4beb8e10 | 773 | ret = snd_soc_dai_prepare(codec_dai, substream); |
ddee627c | 774 | if (ret < 0) { |
4beb8e10 KM |
775 | dev_err(codec_dai->dev, |
776 | "ASoC: codec DAI prepare error: %d\n", | |
777 | ret); | |
ddee627c LG |
778 | goto out; |
779 | } | |
780 | } | |
781 | ||
4beb8e10 KM |
782 | ret = snd_soc_dai_prepare(cpu_dai, substream); |
783 | if (ret < 0) { | |
784 | dev_err(cpu_dai->dev, | |
785 | "ASoC: cpu DAI prepare error: %d\n", ret); | |
786 | goto out; | |
787 | } | |
788 | ||
ddee627c LG |
789 | /* cancel any delayed stream shutdown that is pending */ |
790 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK && | |
9bffb1fb MLC |
791 | rtd->pop_wait) { |
792 | rtd->pop_wait = 0; | |
ddee627c LG |
793 | cancel_delayed_work(&rtd->delayed_work); |
794 | } | |
795 | ||
d9b0951b LG |
796 | snd_soc_dapm_stream_event(rtd, substream->stream, |
797 | SND_SOC_DAPM_STREAM_START); | |
ddee627c | 798 | |
0b7990e3 KM |
799 | for_each_rtd_codec_dai(rtd, i, codec_dai) |
800 | snd_soc_dai_digital_mute(codec_dai, 0, | |
2e5894d7 | 801 | substream->stream); |
ae11601b | 802 | snd_soc_dai_digital_mute(cpu_dai, 0, substream->stream); |
ddee627c LG |
803 | |
804 | out: | |
72b745e3 | 805 | mutex_unlock(&rtd->card->pcm_mutex); |
ddee627c LG |
806 | return ret; |
807 | } | |
808 | ||
2e5894d7 BC |
809 | static void soc_pcm_codec_params_fixup(struct snd_pcm_hw_params *params, |
810 | unsigned int mask) | |
811 | { | |
812 | struct snd_interval *interval; | |
813 | int channels = hweight_long(mask); | |
814 | ||
815 | interval = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS); | |
816 | interval->min = channels; | |
817 | interval->max = channels; | |
818 | } | |
819 | ||
244e2936 CK |
820 | static int soc_pcm_components_hw_free(struct snd_pcm_substream *substream, |
821 | struct snd_soc_component *last) | |
822 | { | |
823 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
244e2936 | 824 | struct snd_soc_component *component; |
613fb500 | 825 | int i, ret = 0; |
244e2936 | 826 | |
613fb500 | 827 | for_each_rtd_components(rtd, i, component) { |
244e2936 CK |
828 | if (component == last) |
829 | break; | |
830 | ||
eae7136a | 831 | ret |= snd_soc_component_hw_free(component, substream); |
244e2936 CK |
832 | } |
833 | ||
eae7136a | 834 | return ret; |
244e2936 CK |
835 | } |
836 | ||
ddee627c LG |
837 | /* |
838 | * Called by ALSA when the hardware params are set by application. This | |
839 | * function can also be called multiple times and can allocate buffers | |
840 | * (using snd_pcm_lib_* ). It's non-atomic. | |
841 | */ | |
842 | static int soc_pcm_hw_params(struct snd_pcm_substream *substream, | |
843 | struct snd_pcm_hw_params *params) | |
844 | { | |
845 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
b8135864 | 846 | struct snd_soc_component *component; |
ddee627c | 847 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
0b7990e3 | 848 | struct snd_soc_dai *codec_dai; |
244e2936 | 849 | int i, ret = 0; |
ddee627c | 850 | |
72b745e3 | 851 | mutex_lock_nested(&rtd->card->pcm_mutex, rtd->card->pcm_subclass); |
5cca5951 SW |
852 | |
853 | ret = soc_pcm_params_symmetry(substream, params); | |
854 | if (ret) | |
855 | goto out; | |
856 | ||
de9ad990 KM |
857 | ret = soc_rtd_hw_params(rtd, substream, params); |
858 | if (ret < 0) { | |
859 | dev_err(rtd->card->dev, | |
860 | "ASoC: machine hw_params failed: %d\n", ret); | |
861 | goto out; | |
ddee627c LG |
862 | } |
863 | ||
0b7990e3 | 864 | for_each_rtd_codec_dai(rtd, i, codec_dai) { |
2e5894d7 BC |
865 | struct snd_pcm_hw_params codec_params; |
866 | ||
cde79035 RW |
867 | /* |
868 | * Skip CODECs which don't support the current stream type, | |
869 | * the idea being that if a CODEC is not used for the currently | |
870 | * set up transfer direction, it should not need to be | |
871 | * configured, especially since the configuration used might | |
872 | * not even be supported by that CODEC. There may be cases | |
873 | * however where a CODEC needs to be set up although it is | |
874 | * actually not being used for the transfer, e.g. if a | |
875 | * capture-only CODEC is acting as an LRCLK and/or BCLK master | |
876 | * for the DAI link including a playback-only CODEC. | |
877 | * If this becomes necessary, we will have to augment the | |
878 | * machine driver setup with information on how to act, so | |
879 | * we can do the right thing here. | |
880 | */ | |
881 | if (!snd_soc_dai_stream_valid(codec_dai, substream->stream)) | |
882 | continue; | |
883 | ||
2e5894d7 BC |
884 | /* copy params for each codec */ |
885 | codec_params = *params; | |
886 | ||
887 | /* fixup params based on TDM slot masks */ | |
570f18b6 RW |
888 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK && |
889 | codec_dai->tx_mask) | |
2e5894d7 BC |
890 | soc_pcm_codec_params_fixup(&codec_params, |
891 | codec_dai->tx_mask); | |
570f18b6 RW |
892 | |
893 | if (substream->stream == SNDRV_PCM_STREAM_CAPTURE && | |
894 | codec_dai->rx_mask) | |
2e5894d7 BC |
895 | soc_pcm_codec_params_fixup(&codec_params, |
896 | codec_dai->rx_mask); | |
897 | ||
aa6166c2 KM |
898 | ret = snd_soc_dai_hw_params(codec_dai, substream, |
899 | &codec_params); | |
93e6958a | 900 | if(ret < 0) |
ddee627c | 901 | goto codec_err; |
ddee627c | 902 | |
2e5894d7 BC |
903 | codec_dai->rate = params_rate(&codec_params); |
904 | codec_dai->channels = params_channels(&codec_params); | |
905 | codec_dai->sample_bits = snd_pcm_format_physical_width( | |
906 | params_format(&codec_params)); | |
078a85f2 CK |
907 | |
908 | snd_soc_dapm_update_dai(substream, &codec_params, codec_dai); | |
ddee627c LG |
909 | } |
910 | ||
aa6166c2 | 911 | ret = snd_soc_dai_hw_params(cpu_dai, substream, params); |
93e6958a BC |
912 | if (ret < 0) |
913 | goto interface_err; | |
ddee627c | 914 | |
ca58221d KM |
915 | /* store the parameters for each DAIs */ |
916 | cpu_dai->rate = params_rate(params); | |
917 | cpu_dai->channels = params_channels(params); | |
918 | cpu_dai->sample_bits = | |
919 | snd_pcm_format_physical_width(params_format(params)); | |
920 | ||
921 | snd_soc_dapm_update_dai(substream, params, cpu_dai); | |
922 | ||
613fb500 | 923 | for_each_rtd_components(rtd, i, component) { |
245c539a | 924 | ret = snd_soc_component_hw_params(component, substream, params); |
244e2936 | 925 | if (ret < 0) { |
b8135864 KM |
926 | dev_err(component->dev, |
927 | "ASoC: %s hw params failed: %d\n", | |
244e2936 CK |
928 | component->name, ret); |
929 | goto component_err; | |
b8135864 KM |
930 | } |
931 | } | |
244e2936 | 932 | component = NULL; |
b8135864 | 933 | |
ddee627c | 934 | out: |
72b745e3 | 935 | mutex_unlock(&rtd->card->pcm_mutex); |
ddee627c LG |
936 | return ret; |
937 | ||
b8135864 | 938 | component_err: |
244e2936 | 939 | soc_pcm_components_hw_free(substream, component); |
b8135864 | 940 | |
846faaed | 941 | snd_soc_dai_hw_free(cpu_dai, substream); |
2371abdc | 942 | cpu_dai->rate = 0; |
ddee627c LG |
943 | |
944 | interface_err: | |
2e5894d7 | 945 | i = rtd->num_codecs; |
ddee627c LG |
946 | |
947 | codec_err: | |
6d11b128 | 948 | for_each_rtd_codec_dai_rollback(rtd, i, codec_dai) { |
f47b9ad9 JB |
949 | if (!snd_soc_dai_stream_valid(codec_dai, substream->stream)) |
950 | continue; | |
951 | ||
846faaed | 952 | snd_soc_dai_hw_free(codec_dai, substream); |
2e5894d7 BC |
953 | codec_dai->rate = 0; |
954 | } | |
955 | ||
49f020e5 | 956 | soc_rtd_hw_free(rtd, substream); |
ddee627c | 957 | |
72b745e3 | 958 | mutex_unlock(&rtd->card->pcm_mutex); |
ddee627c LG |
959 | return ret; |
960 | } | |
961 | ||
962 | /* | |
963 | * Frees resources allocated by hw_params, can be called multiple times | |
964 | */ | |
965 | static int soc_pcm_hw_free(struct snd_pcm_substream *substream) | |
966 | { | |
967 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
ddee627c | 968 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
2e5894d7 | 969 | struct snd_soc_dai *codec_dai; |
7f62b6ee | 970 | bool playback = substream->stream == SNDRV_PCM_STREAM_PLAYBACK; |
2e5894d7 | 971 | int i; |
ddee627c | 972 | |
72b745e3 | 973 | mutex_lock_nested(&rtd->card->pcm_mutex, rtd->card->pcm_subclass); |
ddee627c | 974 | |
d3383420 NC |
975 | /* clear the corresponding DAIs parameters when going to be inactive */ |
976 | if (cpu_dai->active == 1) { | |
977 | cpu_dai->rate = 0; | |
978 | cpu_dai->channels = 0; | |
979 | cpu_dai->sample_bits = 0; | |
980 | } | |
981 | ||
0b7990e3 | 982 | for_each_rtd_codec_dai(rtd, i, codec_dai) { |
2e5894d7 BC |
983 | if (codec_dai->active == 1) { |
984 | codec_dai->rate = 0; | |
985 | codec_dai->channels = 0; | |
986 | codec_dai->sample_bits = 0; | |
987 | } | |
d3383420 NC |
988 | } |
989 | ||
ddee627c | 990 | /* apply codec digital mute */ |
0b7990e3 KM |
991 | for_each_rtd_codec_dai(rtd, i, codec_dai) { |
992 | if ((playback && codec_dai->playback_active == 1) || | |
993 | (!playback && codec_dai->capture_active == 1)) | |
994 | snd_soc_dai_digital_mute(codec_dai, 1, | |
2e5894d7 BC |
995 | substream->stream); |
996 | } | |
ddee627c LG |
997 | |
998 | /* free any machine hw params */ | |
49f020e5 | 999 | soc_rtd_hw_free(rtd, substream); |
ddee627c | 1000 | |
b8135864 | 1001 | /* free any component resources */ |
244e2936 | 1002 | soc_pcm_components_hw_free(substream, NULL); |
b8135864 | 1003 | |
ddee627c | 1004 | /* now free hw params for the DAIs */ |
0b7990e3 | 1005 | for_each_rtd_codec_dai(rtd, i, codec_dai) { |
f47b9ad9 JB |
1006 | if (!snd_soc_dai_stream_valid(codec_dai, substream->stream)) |
1007 | continue; | |
1008 | ||
846faaed | 1009 | snd_soc_dai_hw_free(codec_dai, substream); |
2e5894d7 | 1010 | } |
ddee627c | 1011 | |
846faaed | 1012 | snd_soc_dai_hw_free(cpu_dai, substream); |
ddee627c | 1013 | |
72b745e3 | 1014 | mutex_unlock(&rtd->card->pcm_mutex); |
ddee627c LG |
1015 | return 0; |
1016 | } | |
1017 | ||
4378f1fb | 1018 | static int soc_pcm_trigger_start(struct snd_pcm_substream *substream, int cmd) |
ddee627c LG |
1019 | { |
1020 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
b8135864 | 1021 | struct snd_soc_component *component; |
ddee627c | 1022 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
2e5894d7 BC |
1023 | struct snd_soc_dai *codec_dai; |
1024 | int i, ret; | |
1025 | ||
ad2bf9f2 KM |
1026 | ret = soc_rtd_trigger(rtd, substream, cmd); |
1027 | if (ret < 0) | |
1028 | return ret; | |
ddee627c | 1029 | |
613fb500 | 1030 | for_each_rtd_components(rtd, i, component) { |
5693d50c | 1031 | ret = snd_soc_component_trigger(component, substream, cmd); |
b8135864 KM |
1032 | if (ret < 0) |
1033 | return ret; | |
1034 | } | |
1035 | ||
901e822b | 1036 | ret = snd_soc_dai_trigger(cpu_dai, substream, cmd); |
95aef355 KM |
1037 | if (ret < 0) |
1038 | return ret; | |
4792b0db | 1039 | |
4378f1fb PU |
1040 | for_each_rtd_codec_dai(rtd, i, codec_dai) { |
1041 | ret = snd_soc_dai_trigger(codec_dai, substream, cmd); | |
1042 | if (ret < 0) | |
1043 | return ret; | |
1044 | } | |
1045 | ||
1046 | return 0; | |
1047 | } | |
1048 | ||
1049 | static int soc_pcm_trigger_stop(struct snd_pcm_substream *substream, int cmd) | |
1050 | { | |
1051 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
1052 | struct snd_soc_component *component; | |
4378f1fb PU |
1053 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
1054 | struct snd_soc_dai *codec_dai; | |
1055 | int i, ret; | |
1056 | ||
1057 | for_each_rtd_codec_dai(rtd, i, codec_dai) { | |
1058 | ret = snd_soc_dai_trigger(codec_dai, substream, cmd); | |
1059 | if (ret < 0) | |
1060 | return ret; | |
1061 | } | |
1062 | ||
1063 | ret = snd_soc_dai_trigger(cpu_dai, substream, cmd); | |
1064 | if (ret < 0) | |
1065 | return ret; | |
1066 | ||
613fb500 | 1067 | for_each_rtd_components(rtd, i, component) { |
4378f1fb PU |
1068 | ret = snd_soc_component_trigger(component, substream, cmd); |
1069 | if (ret < 0) | |
1070 | return ret; | |
1071 | } | |
1072 | ||
ad2bf9f2 KM |
1073 | ret = soc_rtd_trigger(rtd, substream, cmd); |
1074 | if (ret < 0) | |
1075 | return ret; | |
4792b0db | 1076 | |
ddee627c LG |
1077 | return 0; |
1078 | } | |
1079 | ||
4378f1fb PU |
1080 | static int soc_pcm_trigger(struct snd_pcm_substream *substream, int cmd) |
1081 | { | |
1082 | int ret; | |
1083 | ||
1084 | switch (cmd) { | |
1085 | case SNDRV_PCM_TRIGGER_START: | |
1086 | case SNDRV_PCM_TRIGGER_RESUME: | |
1087 | case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: | |
1088 | ret = soc_pcm_trigger_start(substream, cmd); | |
1089 | break; | |
1090 | case SNDRV_PCM_TRIGGER_STOP: | |
1091 | case SNDRV_PCM_TRIGGER_SUSPEND: | |
1092 | case SNDRV_PCM_TRIGGER_PAUSE_PUSH: | |
1093 | ret = soc_pcm_trigger_stop(substream, cmd); | |
1094 | break; | |
1095 | default: | |
1096 | return -EINVAL; | |
1097 | } | |
1098 | ||
1099 | return ret; | |
1100 | } | |
1101 | ||
45c0a188 MB |
1102 | static int soc_pcm_bespoke_trigger(struct snd_pcm_substream *substream, |
1103 | int cmd) | |
07bf84aa LG |
1104 | { |
1105 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
07bf84aa | 1106 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
2e5894d7 BC |
1107 | struct snd_soc_dai *codec_dai; |
1108 | int i, ret; | |
1109 | ||
0b7990e3 | 1110 | for_each_rtd_codec_dai(rtd, i, codec_dai) { |
5c0769af | 1111 | ret = snd_soc_dai_bespoke_trigger(codec_dai, substream, cmd); |
07bf84aa LG |
1112 | if (ret < 0) |
1113 | return ret; | |
1114 | } | |
5c0769af | 1115 | |
901e822b | 1116 | ret = snd_soc_dai_bespoke_trigger(cpu_dai, substream, cmd); |
5c0769af KM |
1117 | if (ret < 0) |
1118 | return ret; | |
1119 | ||
07bf84aa LG |
1120 | return 0; |
1121 | } | |
ddee627c LG |
1122 | /* |
1123 | * soc level wrapper for pointer callback | |
ef050bec | 1124 | * If cpu_dai, codec_dai, component driver has the delay callback, then |
ddee627c LG |
1125 | * the runtime->delay will be updated accordingly. |
1126 | */ | |
1127 | static snd_pcm_uframes_t soc_pcm_pointer(struct snd_pcm_substream *substream) | |
1128 | { | |
1129 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
ddee627c | 1130 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
2e5894d7 | 1131 | struct snd_soc_dai *codec_dai; |
ddee627c LG |
1132 | struct snd_pcm_runtime *runtime = substream->runtime; |
1133 | snd_pcm_uframes_t offset = 0; | |
1134 | snd_pcm_sframes_t delay = 0; | |
2e5894d7 BC |
1135 | snd_pcm_sframes_t codec_delay = 0; |
1136 | int i; | |
ddee627c | 1137 | |
9fb4c2bf AA |
1138 | /* clearing the previous total delay */ |
1139 | runtime->delay = 0; | |
1140 | ||
0035e256 | 1141 | offset = snd_soc_pcm_component_pointer(substream); |
b8135864 | 1142 | |
9fb4c2bf AA |
1143 | /* base delay if assigned in pointer callback */ |
1144 | delay = runtime->delay; | |
b8135864 | 1145 | |
1dea80d4 | 1146 | delay += snd_soc_dai_delay(cpu_dai, substream); |
ddee627c | 1147 | |
0b7990e3 | 1148 | for_each_rtd_codec_dai(rtd, i, codec_dai) { |
1dea80d4 KM |
1149 | codec_delay = max(codec_delay, |
1150 | snd_soc_dai_delay(codec_dai, substream)); | |
2e5894d7 BC |
1151 | } |
1152 | delay += codec_delay; | |
ddee627c | 1153 | |
ddee627c LG |
1154 | runtime->delay = delay; |
1155 | ||
1156 | return offset; | |
1157 | } | |
1158 | ||
01d7584c LG |
1159 | /* connect a FE and BE */ |
1160 | static int dpcm_be_connect(struct snd_soc_pcm_runtime *fe, | |
1161 | struct snd_soc_pcm_runtime *be, int stream) | |
1162 | { | |
1163 | struct snd_soc_dpcm *dpcm; | |
a9764869 | 1164 | unsigned long flags; |
bd0b609e | 1165 | #ifdef CONFIG_DEBUG_FS |
0632fa04 | 1166 | char *name; |
bd0b609e | 1167 | #endif |
01d7584c LG |
1168 | |
1169 | /* only add new dpcms */ | |
8d6258a4 | 1170 | for_each_dpcm_be(fe, stream, dpcm) { |
01d7584c LG |
1171 | if (dpcm->be == be && dpcm->fe == fe) |
1172 | return 0; | |
1173 | } | |
1174 | ||
1175 | dpcm = kzalloc(sizeof(struct snd_soc_dpcm), GFP_KERNEL); | |
1176 | if (!dpcm) | |
1177 | return -ENOMEM; | |
1178 | ||
1179 | dpcm->be = be; | |
1180 | dpcm->fe = fe; | |
1181 | be->dpcm[stream].runtime = fe->dpcm[stream].runtime; | |
1182 | dpcm->state = SND_SOC_DPCM_LINK_STATE_NEW; | |
a9764869 | 1183 | spin_lock_irqsave(&fe->card->dpcm_lock, flags); |
01d7584c LG |
1184 | list_add(&dpcm->list_be, &fe->dpcm[stream].be_clients); |
1185 | list_add(&dpcm->list_fe, &be->dpcm[stream].fe_clients); | |
a9764869 | 1186 | spin_unlock_irqrestore(&fe->card->dpcm_lock, flags); |
01d7584c | 1187 | |
7cc302d2 | 1188 | dev_dbg(fe->dev, "connected new DPCM %s path %s %s %s\n", |
01d7584c LG |
1189 | stream ? "capture" : "playback", fe->dai_link->name, |
1190 | stream ? "<-" : "->", be->dai_link->name); | |
1191 | ||
f86dcef8 | 1192 | #ifdef CONFIG_DEBUG_FS |
0632fa04 HG |
1193 | name = kasprintf(GFP_KERNEL, "%s:%s", be->dai_link->name, |
1194 | stream ? "capture" : "playback"); | |
1195 | if (name) { | |
1196 | dpcm->debugfs_state = debugfs_create_dir(name, | |
1197 | fe->debugfs_dpcm_root); | |
1198 | debugfs_create_u32("state", 0644, dpcm->debugfs_state, | |
1199 | &dpcm->state); | |
1200 | kfree(name); | |
1201 | } | |
f86dcef8 | 1202 | #endif |
01d7584c LG |
1203 | return 1; |
1204 | } | |
1205 | ||
1206 | /* reparent a BE onto another FE */ | |
1207 | static void dpcm_be_reparent(struct snd_soc_pcm_runtime *fe, | |
1208 | struct snd_soc_pcm_runtime *be, int stream) | |
1209 | { | |
1210 | struct snd_soc_dpcm *dpcm; | |
1211 | struct snd_pcm_substream *fe_substream, *be_substream; | |
1212 | ||
1213 | /* reparent if BE is connected to other FEs */ | |
1214 | if (!be->dpcm[stream].users) | |
1215 | return; | |
1216 | ||
1217 | be_substream = snd_soc_dpcm_get_substream(be, stream); | |
1218 | ||
d2e24d64 | 1219 | for_each_dpcm_fe(be, stream, dpcm) { |
01d7584c LG |
1220 | if (dpcm->fe == fe) |
1221 | continue; | |
1222 | ||
7cc302d2 | 1223 | dev_dbg(fe->dev, "reparent %s path %s %s %s\n", |
01d7584c LG |
1224 | stream ? "capture" : "playback", |
1225 | dpcm->fe->dai_link->name, | |
1226 | stream ? "<-" : "->", dpcm->be->dai_link->name); | |
1227 | ||
1228 | fe_substream = snd_soc_dpcm_get_substream(dpcm->fe, stream); | |
1229 | be_substream->runtime = fe_substream->runtime; | |
1230 | break; | |
1231 | } | |
1232 | } | |
1233 | ||
1234 | /* disconnect a BE and FE */ | |
23607025 | 1235 | void dpcm_be_disconnect(struct snd_soc_pcm_runtime *fe, int stream) |
01d7584c LG |
1236 | { |
1237 | struct snd_soc_dpcm *dpcm, *d; | |
a9764869 | 1238 | unsigned long flags; |
01d7584c | 1239 | |
8d6258a4 | 1240 | for_each_dpcm_be_safe(fe, stream, dpcm, d) { |
103d84a3 | 1241 | dev_dbg(fe->dev, "ASoC: BE %s disconnect check for %s\n", |
01d7584c LG |
1242 | stream ? "capture" : "playback", |
1243 | dpcm->be->dai_link->name); | |
1244 | ||
1245 | if (dpcm->state != SND_SOC_DPCM_LINK_STATE_FREE) | |
1246 | continue; | |
1247 | ||
7cc302d2 | 1248 | dev_dbg(fe->dev, "freed DSP %s path %s %s %s\n", |
01d7584c LG |
1249 | stream ? "capture" : "playback", fe->dai_link->name, |
1250 | stream ? "<-" : "->", dpcm->be->dai_link->name); | |
1251 | ||
1252 | /* BEs still alive need new FE */ | |
1253 | dpcm_be_reparent(fe, dpcm->be, stream); | |
1254 | ||
f86dcef8 | 1255 | #ifdef CONFIG_DEBUG_FS |
fee531d6 | 1256 | debugfs_remove_recursive(dpcm->debugfs_state); |
f86dcef8 | 1257 | #endif |
a9764869 | 1258 | spin_lock_irqsave(&fe->card->dpcm_lock, flags); |
01d7584c LG |
1259 | list_del(&dpcm->list_be); |
1260 | list_del(&dpcm->list_fe); | |
a9764869 | 1261 | spin_unlock_irqrestore(&fe->card->dpcm_lock, flags); |
01d7584c LG |
1262 | kfree(dpcm); |
1263 | } | |
1264 | } | |
1265 | ||
1266 | /* get BE for DAI widget and stream */ | |
1267 | static struct snd_soc_pcm_runtime *dpcm_get_be(struct snd_soc_card *card, | |
1268 | struct snd_soc_dapm_widget *widget, int stream) | |
1269 | { | |
1270 | struct snd_soc_pcm_runtime *be; | |
7afecb30 | 1271 | struct snd_soc_dai *dai; |
1a497983 | 1272 | int i; |
01d7584c | 1273 | |
3c146465 LG |
1274 | dev_dbg(card->dev, "ASoC: find BE for widget %s\n", widget->name); |
1275 | ||
01d7584c | 1276 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) { |
bcb1fd1f | 1277 | for_each_card_rtds(card, be) { |
01d7584c | 1278 | |
35ea0655 LG |
1279 | if (!be->dai_link->no_pcm) |
1280 | continue; | |
1281 | ||
3c146465 LG |
1282 | dev_dbg(card->dev, "ASoC: try BE : %s\n", |
1283 | be->cpu_dai->playback_widget ? | |
1284 | be->cpu_dai->playback_widget->name : "(not set)"); | |
1285 | ||
2e5894d7 | 1286 | if (be->cpu_dai->playback_widget == widget) |
01d7584c | 1287 | return be; |
2e5894d7 | 1288 | |
7afecb30 | 1289 | for_each_rtd_codec_dai(be, i, dai) { |
2e5894d7 BC |
1290 | if (dai->playback_widget == widget) |
1291 | return be; | |
1292 | } | |
01d7584c LG |
1293 | } |
1294 | } else { | |
1295 | ||
bcb1fd1f | 1296 | for_each_card_rtds(card, be) { |
01d7584c | 1297 | |
35ea0655 LG |
1298 | if (!be->dai_link->no_pcm) |
1299 | continue; | |
1300 | ||
3c146465 LG |
1301 | dev_dbg(card->dev, "ASoC: try BE %s\n", |
1302 | be->cpu_dai->capture_widget ? | |
1303 | be->cpu_dai->capture_widget->name : "(not set)"); | |
1304 | ||
2e5894d7 | 1305 | if (be->cpu_dai->capture_widget == widget) |
01d7584c | 1306 | return be; |
2e5894d7 | 1307 | |
7afecb30 | 1308 | for_each_rtd_codec_dai(be, i, dai) { |
2e5894d7 BC |
1309 | if (dai->capture_widget == widget) |
1310 | return be; | |
1311 | } | |
01d7584c LG |
1312 | } |
1313 | } | |
1314 | ||
3c146465 | 1315 | /* dai link name and stream name set correctly ? */ |
103d84a3 | 1316 | dev_err(card->dev, "ASoC: can't get %s BE for %s\n", |
01d7584c LG |
1317 | stream ? "capture" : "playback", widget->name); |
1318 | return NULL; | |
1319 | } | |
1320 | ||
1321 | static inline struct snd_soc_dapm_widget * | |
37018610 | 1322 | dai_get_widget(struct snd_soc_dai *dai, int stream) |
01d7584c LG |
1323 | { |
1324 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) | |
37018610 | 1325 | return dai->playback_widget; |
01d7584c | 1326 | else |
37018610 | 1327 | return dai->capture_widget; |
01d7584c LG |
1328 | } |
1329 | ||
1330 | static int widget_in_list(struct snd_soc_dapm_widget_list *list, | |
1331 | struct snd_soc_dapm_widget *widget) | |
1332 | { | |
1333 | int i; | |
1334 | ||
1335 | for (i = 0; i < list->num_widgets; i++) { | |
1336 | if (widget == list->widgets[i]) | |
1337 | return 1; | |
1338 | } | |
1339 | ||
1340 | return 0; | |
1341 | } | |
1342 | ||
5fdd022c PS |
1343 | static bool dpcm_end_walk_at_be(struct snd_soc_dapm_widget *widget, |
1344 | enum snd_soc_dapm_direction dir) | |
1345 | { | |
1346 | struct snd_soc_card *card = widget->dapm->card; | |
1347 | struct snd_soc_pcm_runtime *rtd; | |
0b7990e3 | 1348 | struct snd_soc_dai *dai; |
5fdd022c PS |
1349 | int i; |
1350 | ||
1351 | if (dir == SND_SOC_DAPM_DIR_OUT) { | |
bcb1fd1f | 1352 | for_each_card_rtds(card, rtd) { |
5fdd022c PS |
1353 | if (!rtd->dai_link->no_pcm) |
1354 | continue; | |
1355 | ||
1356 | if (rtd->cpu_dai->playback_widget == widget) | |
1357 | return true; | |
1358 | ||
0b7990e3 | 1359 | for_each_rtd_codec_dai(rtd, i, dai) { |
5fdd022c PS |
1360 | if (dai->playback_widget == widget) |
1361 | return true; | |
1362 | } | |
1363 | } | |
1364 | } else { /* SND_SOC_DAPM_DIR_IN */ | |
bcb1fd1f | 1365 | for_each_card_rtds(card, rtd) { |
5fdd022c PS |
1366 | if (!rtd->dai_link->no_pcm) |
1367 | continue; | |
1368 | ||
1369 | if (rtd->cpu_dai->capture_widget == widget) | |
1370 | return true; | |
1371 | ||
0b7990e3 | 1372 | for_each_rtd_codec_dai(rtd, i, dai) { |
5fdd022c PS |
1373 | if (dai->capture_widget == widget) |
1374 | return true; | |
1375 | } | |
1376 | } | |
1377 | } | |
1378 | ||
1379 | return false; | |
1380 | } | |
1381 | ||
23607025 | 1382 | int dpcm_path_get(struct snd_soc_pcm_runtime *fe, |
1ce43acf | 1383 | int stream, struct snd_soc_dapm_widget_list **list) |
01d7584c LG |
1384 | { |
1385 | struct snd_soc_dai *cpu_dai = fe->cpu_dai; | |
01d7584c LG |
1386 | int paths; |
1387 | ||
01d7584c | 1388 | /* get number of valid DAI paths and their widgets */ |
6742064a | 1389 | paths = snd_soc_dapm_dai_get_connected_widgets(cpu_dai, stream, list, |
5fdd022c | 1390 | dpcm_end_walk_at_be); |
01d7584c | 1391 | |
103d84a3 | 1392 | dev_dbg(fe->dev, "ASoC: found %d audio %s paths\n", paths, |
01d7584c LG |
1393 | stream ? "capture" : "playback"); |
1394 | ||
01d7584c LG |
1395 | return paths; |
1396 | } | |
1397 | ||
01d7584c LG |
1398 | static int dpcm_prune_paths(struct snd_soc_pcm_runtime *fe, int stream, |
1399 | struct snd_soc_dapm_widget_list **list_) | |
1400 | { | |
1401 | struct snd_soc_dpcm *dpcm; | |
1402 | struct snd_soc_dapm_widget_list *list = *list_; | |
1403 | struct snd_soc_dapm_widget *widget; | |
7afecb30 | 1404 | struct snd_soc_dai *dai; |
01d7584c | 1405 | int prune = 0; |
bed646dc | 1406 | int do_prune; |
01d7584c LG |
1407 | |
1408 | /* Destroy any old FE <--> BE connections */ | |
8d6258a4 | 1409 | for_each_dpcm_be(fe, stream, dpcm) { |
2e5894d7 | 1410 | unsigned int i; |
01d7584c LG |
1411 | |
1412 | /* is there a valid CPU DAI widget for this BE */ | |
37018610 | 1413 | widget = dai_get_widget(dpcm->be->cpu_dai, stream); |
01d7584c LG |
1414 | |
1415 | /* prune the BE if it's no longer in our active list */ | |
1416 | if (widget && widget_in_list(list, widget)) | |
1417 | continue; | |
1418 | ||
1419 | /* is there a valid CODEC DAI widget for this BE */ | |
bed646dc | 1420 | do_prune = 1; |
7afecb30 | 1421 | for_each_rtd_codec_dai(dpcm->be, i, dai) { |
2e5894d7 | 1422 | widget = dai_get_widget(dai, stream); |
01d7584c | 1423 | |
2e5894d7 BC |
1424 | /* prune the BE if it's no longer in our active list */ |
1425 | if (widget && widget_in_list(list, widget)) | |
bed646dc | 1426 | do_prune = 0; |
2e5894d7 | 1427 | } |
bed646dc KM |
1428 | if (!do_prune) |
1429 | continue; | |
01d7584c | 1430 | |
103d84a3 | 1431 | dev_dbg(fe->dev, "ASoC: pruning %s BE %s for %s\n", |
01d7584c LG |
1432 | stream ? "capture" : "playback", |
1433 | dpcm->be->dai_link->name, fe->dai_link->name); | |
1434 | dpcm->state = SND_SOC_DPCM_LINK_STATE_FREE; | |
1435 | dpcm->be->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_BE; | |
1436 | prune++; | |
1437 | } | |
1438 | ||
103d84a3 | 1439 | dev_dbg(fe->dev, "ASoC: found %d old BE paths for pruning\n", prune); |
01d7584c LG |
1440 | return prune; |
1441 | } | |
1442 | ||
1443 | static int dpcm_add_paths(struct snd_soc_pcm_runtime *fe, int stream, | |
1444 | struct snd_soc_dapm_widget_list **list_) | |
1445 | { | |
1446 | struct snd_soc_card *card = fe->card; | |
1447 | struct snd_soc_dapm_widget_list *list = *list_; | |
1448 | struct snd_soc_pcm_runtime *be; | |
1449 | int i, new = 0, err; | |
1450 | ||
1451 | /* Create any new FE <--> BE connections */ | |
1452 | for (i = 0; i < list->num_widgets; i++) { | |
1453 | ||
4616274d MB |
1454 | switch (list->widgets[i]->id) { |
1455 | case snd_soc_dapm_dai_in: | |
c5b8540d KC |
1456 | if (stream != SNDRV_PCM_STREAM_PLAYBACK) |
1457 | continue; | |
1458 | break; | |
4616274d | 1459 | case snd_soc_dapm_dai_out: |
c5b8540d KC |
1460 | if (stream != SNDRV_PCM_STREAM_CAPTURE) |
1461 | continue; | |
4616274d MB |
1462 | break; |
1463 | default: | |
01d7584c | 1464 | continue; |
4616274d | 1465 | } |
01d7584c LG |
1466 | |
1467 | /* is there a valid BE rtd for this widget */ | |
1468 | be = dpcm_get_be(card, list->widgets[i], stream); | |
1469 | if (!be) { | |
103d84a3 | 1470 | dev_err(fe->dev, "ASoC: no BE found for %s\n", |
01d7584c LG |
1471 | list->widgets[i]->name); |
1472 | continue; | |
1473 | } | |
1474 | ||
1475 | /* make sure BE is a real BE */ | |
1476 | if (!be->dai_link->no_pcm) | |
1477 | continue; | |
1478 | ||
1479 | /* don't connect if FE is not running */ | |
23607025 | 1480 | if (!fe->dpcm[stream].runtime && !fe->fe_compr) |
01d7584c LG |
1481 | continue; |
1482 | ||
1483 | /* newly connected FE and BE */ | |
1484 | err = dpcm_be_connect(fe, be, stream); | |
1485 | if (err < 0) { | |
103d84a3 | 1486 | dev_err(fe->dev, "ASoC: can't connect %s\n", |
01d7584c LG |
1487 | list->widgets[i]->name); |
1488 | break; | |
1489 | } else if (err == 0) /* already connected */ | |
1490 | continue; | |
1491 | ||
1492 | /* new */ | |
1493 | be->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_BE; | |
1494 | new++; | |
1495 | } | |
1496 | ||
103d84a3 | 1497 | dev_dbg(fe->dev, "ASoC: found %d new BE paths\n", new); |
01d7584c LG |
1498 | return new; |
1499 | } | |
1500 | ||
1501 | /* | |
1502 | * Find the corresponding BE DAIs that source or sink audio to this | |
1503 | * FE substream. | |
1504 | */ | |
23607025 | 1505 | int dpcm_process_paths(struct snd_soc_pcm_runtime *fe, |
01d7584c LG |
1506 | int stream, struct snd_soc_dapm_widget_list **list, int new) |
1507 | { | |
1508 | if (new) | |
1509 | return dpcm_add_paths(fe, stream, list); | |
1510 | else | |
1511 | return dpcm_prune_paths(fe, stream, list); | |
1512 | } | |
1513 | ||
23607025 | 1514 | void dpcm_clear_pending_state(struct snd_soc_pcm_runtime *fe, int stream) |
01d7584c LG |
1515 | { |
1516 | struct snd_soc_dpcm *dpcm; | |
a9764869 | 1517 | unsigned long flags; |
01d7584c | 1518 | |
a9764869 | 1519 | spin_lock_irqsave(&fe->card->dpcm_lock, flags); |
8d6258a4 | 1520 | for_each_dpcm_be(fe, stream, dpcm) |
01d7584c LG |
1521 | dpcm->be->dpcm[stream].runtime_update = |
1522 | SND_SOC_DPCM_UPDATE_NO; | |
a9764869 | 1523 | spin_unlock_irqrestore(&fe->card->dpcm_lock, flags); |
01d7584c LG |
1524 | } |
1525 | ||
1526 | static void dpcm_be_dai_startup_unwind(struct snd_soc_pcm_runtime *fe, | |
1527 | int stream) | |
1528 | { | |
1529 | struct snd_soc_dpcm *dpcm; | |
1530 | ||
1531 | /* disable any enabled and non active backends */ | |
8d6258a4 | 1532 | for_each_dpcm_be(fe, stream, dpcm) { |
01d7584c LG |
1533 | |
1534 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
1535 | struct snd_pcm_substream *be_substream = | |
1536 | snd_soc_dpcm_get_substream(be, stream); | |
1537 | ||
1538 | if (be->dpcm[stream].users == 0) | |
103d84a3 | 1539 | dev_err(be->dev, "ASoC: no users %s at close - state %d\n", |
01d7584c LG |
1540 | stream ? "capture" : "playback", |
1541 | be->dpcm[stream].state); | |
1542 | ||
1543 | if (--be->dpcm[stream].users != 0) | |
1544 | continue; | |
1545 | ||
1546 | if (be->dpcm[stream].state != SND_SOC_DPCM_STATE_OPEN) | |
1547 | continue; | |
1548 | ||
1549 | soc_pcm_close(be_substream); | |
1550 | be_substream->runtime = NULL; | |
1551 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_CLOSE; | |
1552 | } | |
1553 | } | |
1554 | ||
23607025 | 1555 | int dpcm_be_dai_startup(struct snd_soc_pcm_runtime *fe, int stream) |
01d7584c LG |
1556 | { |
1557 | struct snd_soc_dpcm *dpcm; | |
1558 | int err, count = 0; | |
1559 | ||
1560 | /* only startup BE DAIs that are either sinks or sources to this FE DAI */ | |
8d6258a4 | 1561 | for_each_dpcm_be(fe, stream, dpcm) { |
01d7584c LG |
1562 | |
1563 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
1564 | struct snd_pcm_substream *be_substream = | |
1565 | snd_soc_dpcm_get_substream(be, stream); | |
1566 | ||
2062b4c5 RKAL |
1567 | if (!be_substream) { |
1568 | dev_err(be->dev, "ASoC: no backend %s stream\n", | |
1569 | stream ? "capture" : "playback"); | |
1570 | continue; | |
1571 | } | |
1572 | ||
01d7584c LG |
1573 | /* is this op for this BE ? */ |
1574 | if (!snd_soc_dpcm_be_can_update(fe, be, stream)) | |
1575 | continue; | |
1576 | ||
1577 | /* first time the dpcm is open ? */ | |
1578 | if (be->dpcm[stream].users == DPCM_MAX_BE_USERS) | |
103d84a3 | 1579 | dev_err(be->dev, "ASoC: too many users %s at open %d\n", |
01d7584c LG |
1580 | stream ? "capture" : "playback", |
1581 | be->dpcm[stream].state); | |
1582 | ||
1583 | if (be->dpcm[stream].users++ != 0) | |
1584 | continue; | |
1585 | ||
1586 | if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_NEW) && | |
1587 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_CLOSE)) | |
1588 | continue; | |
1589 | ||
2062b4c5 RKAL |
1590 | dev_dbg(be->dev, "ASoC: open %s BE %s\n", |
1591 | stream ? "capture" : "playback", be->dai_link->name); | |
01d7584c LG |
1592 | |
1593 | be_substream->runtime = be->dpcm[stream].runtime; | |
1594 | err = soc_pcm_open(be_substream); | |
1595 | if (err < 0) { | |
103d84a3 | 1596 | dev_err(be->dev, "ASoC: BE open failed %d\n", err); |
01d7584c LG |
1597 | be->dpcm[stream].users--; |
1598 | if (be->dpcm[stream].users < 0) | |
103d84a3 | 1599 | dev_err(be->dev, "ASoC: no users %s at unwind %d\n", |
01d7584c LG |
1600 | stream ? "capture" : "playback", |
1601 | be->dpcm[stream].state); | |
1602 | ||
1603 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_CLOSE; | |
1604 | goto unwind; | |
1605 | } | |
1606 | ||
1607 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_OPEN; | |
1608 | count++; | |
1609 | } | |
1610 | ||
1611 | return count; | |
1612 | ||
1613 | unwind: | |
1614 | /* disable any enabled and non active backends */ | |
8d6258a4 | 1615 | for_each_dpcm_be_rollback(fe, stream, dpcm) { |
01d7584c LG |
1616 | struct snd_soc_pcm_runtime *be = dpcm->be; |
1617 | struct snd_pcm_substream *be_substream = | |
1618 | snd_soc_dpcm_get_substream(be, stream); | |
1619 | ||
1620 | if (!snd_soc_dpcm_be_can_update(fe, be, stream)) | |
1621 | continue; | |
1622 | ||
1623 | if (be->dpcm[stream].users == 0) | |
103d84a3 | 1624 | dev_err(be->dev, "ASoC: no users %s at close %d\n", |
01d7584c LG |
1625 | stream ? "capture" : "playback", |
1626 | be->dpcm[stream].state); | |
1627 | ||
1628 | if (--be->dpcm[stream].users != 0) | |
1629 | continue; | |
1630 | ||
1631 | if (be->dpcm[stream].state != SND_SOC_DPCM_STATE_OPEN) | |
1632 | continue; | |
1633 | ||
1634 | soc_pcm_close(be_substream); | |
1635 | be_substream->runtime = NULL; | |
1636 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_CLOSE; | |
1637 | } | |
1638 | ||
1639 | return err; | |
1640 | } | |
1641 | ||
08ae9b45 | 1642 | static void dpcm_init_runtime_hw(struct snd_pcm_runtime *runtime, |
435ffb76 | 1643 | struct snd_soc_pcm_stream *stream) |
08ae9b45 LPC |
1644 | { |
1645 | runtime->hw.rate_min = stream->rate_min; | |
e33ffbd9 | 1646 | runtime->hw.rate_max = min_not_zero(stream->rate_max, UINT_MAX); |
08ae9b45 LPC |
1647 | runtime->hw.channels_min = stream->channels_min; |
1648 | runtime->hw.channels_max = stream->channels_max; | |
002220a9 | 1649 | if (runtime->hw.formats) |
435ffb76 | 1650 | runtime->hw.formats &= stream->formats; |
002220a9 | 1651 | else |
435ffb76 | 1652 | runtime->hw.formats = stream->formats; |
08ae9b45 LPC |
1653 | runtime->hw.rates = stream->rates; |
1654 | } | |
1655 | ||
435ffb76 JB |
1656 | static void dpcm_runtime_merge_format(struct snd_pcm_substream *substream, |
1657 | u64 *formats) | |
b073ed4e KM |
1658 | { |
1659 | struct snd_soc_pcm_runtime *fe = substream->private_data; | |
1660 | struct snd_soc_dpcm *dpcm; | |
7afecb30 | 1661 | struct snd_soc_dai *dai; |
b073ed4e KM |
1662 | int stream = substream->stream; |
1663 | ||
1664 | if (!fe->dai_link->dpcm_merged_format) | |
435ffb76 | 1665 | return; |
b073ed4e KM |
1666 | |
1667 | /* | |
1668 | * It returns merged BE codec format | |
1669 | * if FE want to use it (= dpcm_merged_format) | |
1670 | */ | |
1671 | ||
8d6258a4 | 1672 | for_each_dpcm_be(fe, stream, dpcm) { |
b073ed4e KM |
1673 | struct snd_soc_pcm_runtime *be = dpcm->be; |
1674 | struct snd_soc_dai_driver *codec_dai_drv; | |
1675 | struct snd_soc_pcm_stream *codec_stream; | |
1676 | int i; | |
1677 | ||
7afecb30 | 1678 | for_each_rtd_codec_dai(be, i, dai) { |
4febced1 JB |
1679 | /* |
1680 | * Skip CODECs which don't support the current stream | |
1681 | * type. See soc_pcm_init_runtime_hw() for more details | |
1682 | */ | |
7afecb30 | 1683 | if (!snd_soc_dai_stream_valid(dai, stream)) |
4febced1 JB |
1684 | continue; |
1685 | ||
7afecb30 | 1686 | codec_dai_drv = dai->driver; |
b073ed4e KM |
1687 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) |
1688 | codec_stream = &codec_dai_drv->playback; | |
1689 | else | |
1690 | codec_stream = &codec_dai_drv->capture; | |
1691 | ||
435ffb76 | 1692 | *formats &= codec_stream->formats; |
b073ed4e KM |
1693 | } |
1694 | } | |
b073ed4e KM |
1695 | } |
1696 | ||
435ffb76 JB |
1697 | static void dpcm_runtime_merge_chan(struct snd_pcm_substream *substream, |
1698 | unsigned int *channels_min, | |
1699 | unsigned int *channels_max) | |
f4c277b8 JW |
1700 | { |
1701 | struct snd_soc_pcm_runtime *fe = substream->private_data; | |
1702 | struct snd_soc_dpcm *dpcm; | |
1703 | int stream = substream->stream; | |
1704 | ||
1705 | if (!fe->dai_link->dpcm_merged_chan) | |
1706 | return; | |
1707 | ||
f4c277b8 JW |
1708 | /* |
1709 | * It returns merged BE codec channel; | |
1710 | * if FE want to use it (= dpcm_merged_chan) | |
1711 | */ | |
1712 | ||
8d6258a4 | 1713 | for_each_dpcm_be(fe, stream, dpcm) { |
f4c277b8 | 1714 | struct snd_soc_pcm_runtime *be = dpcm->be; |
4f2bd18b | 1715 | struct snd_soc_dai_driver *cpu_dai_drv = be->cpu_dai->driver; |
f4c277b8 JW |
1716 | struct snd_soc_dai_driver *codec_dai_drv; |
1717 | struct snd_soc_pcm_stream *codec_stream; | |
4f2bd18b JB |
1718 | struct snd_soc_pcm_stream *cpu_stream; |
1719 | ||
1720 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) | |
1721 | cpu_stream = &cpu_dai_drv->playback; | |
1722 | else | |
1723 | cpu_stream = &cpu_dai_drv->capture; | |
1724 | ||
1725 | *channels_min = max(*channels_min, cpu_stream->channels_min); | |
1726 | *channels_max = min(*channels_max, cpu_stream->channels_max); | |
1727 | ||
1728 | /* | |
1729 | * chan min/max cannot be enforced if there are multiple CODEC | |
1730 | * DAIs connected to a single CPU DAI, use CPU DAI's directly | |
1731 | */ | |
1732 | if (be->num_codecs == 1) { | |
1733 | codec_dai_drv = be->codec_dais[0]->driver; | |
f4c277b8 | 1734 | |
f4c277b8 JW |
1735 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) |
1736 | codec_stream = &codec_dai_drv->playback; | |
1737 | else | |
1738 | codec_stream = &codec_dai_drv->capture; | |
1739 | ||
1740 | *channels_min = max(*channels_min, | |
1741 | codec_stream->channels_min); | |
1742 | *channels_max = min(*channels_max, | |
1743 | codec_stream->channels_max); | |
1744 | } | |
1745 | } | |
1746 | } | |
1747 | ||
baacd8d1 JB |
1748 | static void dpcm_runtime_merge_rate(struct snd_pcm_substream *substream, |
1749 | unsigned int *rates, | |
1750 | unsigned int *rate_min, | |
1751 | unsigned int *rate_max) | |
1752 | { | |
1753 | struct snd_soc_pcm_runtime *fe = substream->private_data; | |
1754 | struct snd_soc_dpcm *dpcm; | |
1755 | int stream = substream->stream; | |
1756 | ||
1757 | if (!fe->dai_link->dpcm_merged_rate) | |
1758 | return; | |
1759 | ||
1760 | /* | |
1761 | * It returns merged BE codec channel; | |
1762 | * if FE want to use it (= dpcm_merged_chan) | |
1763 | */ | |
1764 | ||
8d6258a4 | 1765 | for_each_dpcm_be(fe, stream, dpcm) { |
baacd8d1 JB |
1766 | struct snd_soc_pcm_runtime *be = dpcm->be; |
1767 | struct snd_soc_dai_driver *cpu_dai_drv = be->cpu_dai->driver; | |
1768 | struct snd_soc_dai_driver *codec_dai_drv; | |
1769 | struct snd_soc_pcm_stream *codec_stream; | |
1770 | struct snd_soc_pcm_stream *cpu_stream; | |
7afecb30 | 1771 | struct snd_soc_dai *dai; |
baacd8d1 JB |
1772 | int i; |
1773 | ||
1774 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) | |
1775 | cpu_stream = &cpu_dai_drv->playback; | |
1776 | else | |
1777 | cpu_stream = &cpu_dai_drv->capture; | |
1778 | ||
1779 | *rate_min = max(*rate_min, cpu_stream->rate_min); | |
1780 | *rate_max = min_not_zero(*rate_max, cpu_stream->rate_max); | |
1781 | *rates = snd_pcm_rate_mask_intersect(*rates, cpu_stream->rates); | |
1782 | ||
7afecb30 | 1783 | for_each_rtd_codec_dai(be, i, dai) { |
baacd8d1 JB |
1784 | /* |
1785 | * Skip CODECs which don't support the current stream | |
1786 | * type. See soc_pcm_init_runtime_hw() for more details | |
1787 | */ | |
7afecb30 | 1788 | if (!snd_soc_dai_stream_valid(dai, stream)) |
baacd8d1 JB |
1789 | continue; |
1790 | ||
7afecb30 | 1791 | codec_dai_drv = dai->driver; |
baacd8d1 JB |
1792 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) |
1793 | codec_stream = &codec_dai_drv->playback; | |
1794 | else | |
1795 | codec_stream = &codec_dai_drv->capture; | |
1796 | ||
1797 | *rate_min = max(*rate_min, codec_stream->rate_min); | |
1798 | *rate_max = min_not_zero(*rate_max, | |
1799 | codec_stream->rate_max); | |
1800 | *rates = snd_pcm_rate_mask_intersect(*rates, | |
1801 | codec_stream->rates); | |
1802 | } | |
1803 | } | |
1804 | } | |
1805 | ||
45c0a188 | 1806 | static void dpcm_set_fe_runtime(struct snd_pcm_substream *substream) |
01d7584c LG |
1807 | { |
1808 | struct snd_pcm_runtime *runtime = substream->runtime; | |
1809 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
1810 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
1811 | struct snd_soc_dai_driver *cpu_dai_drv = cpu_dai->driver; | |
1812 | ||
08ae9b45 | 1813 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) |
435ffb76 | 1814 | dpcm_init_runtime_hw(runtime, &cpu_dai_drv->playback); |
08ae9b45 | 1815 | else |
435ffb76 | 1816 | dpcm_init_runtime_hw(runtime, &cpu_dai_drv->capture); |
f4c277b8 | 1817 | |
435ffb76 JB |
1818 | dpcm_runtime_merge_format(substream, &runtime->hw.formats); |
1819 | dpcm_runtime_merge_chan(substream, &runtime->hw.channels_min, | |
1820 | &runtime->hw.channels_max); | |
baacd8d1 JB |
1821 | dpcm_runtime_merge_rate(substream, &runtime->hw.rates, |
1822 | &runtime->hw.rate_min, &runtime->hw.rate_max); | |
01d7584c LG |
1823 | } |
1824 | ||
ea9d0d77 TI |
1825 | static int dpcm_fe_dai_do_trigger(struct snd_pcm_substream *substream, int cmd); |
1826 | ||
1827 | /* Set FE's runtime_update state; the state is protected via PCM stream lock | |
1828 | * for avoiding the race with trigger callback. | |
1829 | * If the state is unset and a trigger is pending while the previous operation, | |
1830 | * process the pending trigger action here. | |
1831 | */ | |
1832 | static void dpcm_set_fe_update_state(struct snd_soc_pcm_runtime *fe, | |
1833 | int stream, enum snd_soc_dpcm_update state) | |
1834 | { | |
1835 | struct snd_pcm_substream *substream = | |
1836 | snd_soc_dpcm_get_substream(fe, stream); | |
1837 | ||
1838 | snd_pcm_stream_lock_irq(substream); | |
1839 | if (state == SND_SOC_DPCM_UPDATE_NO && fe->dpcm[stream].trigger_pending) { | |
1840 | dpcm_fe_dai_do_trigger(substream, | |
1841 | fe->dpcm[stream].trigger_pending - 1); | |
1842 | fe->dpcm[stream].trigger_pending = 0; | |
1843 | } | |
1844 | fe->dpcm[stream].runtime_update = state; | |
1845 | snd_pcm_stream_unlock_irq(substream); | |
1846 | } | |
1847 | ||
906c7d69 PL |
1848 | static int dpcm_apply_symmetry(struct snd_pcm_substream *fe_substream, |
1849 | int stream) | |
1850 | { | |
1851 | struct snd_soc_dpcm *dpcm; | |
1852 | struct snd_soc_pcm_runtime *fe = fe_substream->private_data; | |
1853 | struct snd_soc_dai *fe_cpu_dai = fe->cpu_dai; | |
1854 | int err; | |
1855 | ||
1856 | /* apply symmetry for FE */ | |
1857 | if (soc_pcm_has_symmetry(fe_substream)) | |
1858 | fe_substream->runtime->hw.info |= SNDRV_PCM_INFO_JOINT_DUPLEX; | |
1859 | ||
1860 | /* Symmetry only applies if we've got an active stream. */ | |
1861 | if (fe_cpu_dai->active) { | |
1862 | err = soc_pcm_apply_symmetry(fe_substream, fe_cpu_dai); | |
1863 | if (err < 0) | |
1864 | return err; | |
1865 | } | |
1866 | ||
1867 | /* apply symmetry for BE */ | |
8d6258a4 | 1868 | for_each_dpcm_be(fe, stream, dpcm) { |
906c7d69 PL |
1869 | struct snd_soc_pcm_runtime *be = dpcm->be; |
1870 | struct snd_pcm_substream *be_substream = | |
1871 | snd_soc_dpcm_get_substream(be, stream); | |
6246f283 | 1872 | struct snd_soc_pcm_runtime *rtd; |
0b7990e3 | 1873 | struct snd_soc_dai *codec_dai; |
906c7d69 PL |
1874 | int i; |
1875 | ||
6246f283 JB |
1876 | /* A backend may not have the requested substream */ |
1877 | if (!be_substream) | |
1878 | continue; | |
1879 | ||
1880 | rtd = be_substream->private_data; | |
f1176614 JK |
1881 | if (rtd->dai_link->be_hw_params_fixup) |
1882 | continue; | |
1883 | ||
906c7d69 PL |
1884 | if (soc_pcm_has_symmetry(be_substream)) |
1885 | be_substream->runtime->hw.info |= SNDRV_PCM_INFO_JOINT_DUPLEX; | |
1886 | ||
1887 | /* Symmetry only applies if we've got an active stream. */ | |
1888 | if (rtd->cpu_dai->active) { | |
99bcedbd KCC |
1889 | err = soc_pcm_apply_symmetry(fe_substream, |
1890 | rtd->cpu_dai); | |
906c7d69 PL |
1891 | if (err < 0) |
1892 | return err; | |
1893 | } | |
1894 | ||
0b7990e3 KM |
1895 | for_each_rtd_codec_dai(rtd, i, codec_dai) { |
1896 | if (codec_dai->active) { | |
99bcedbd | 1897 | err = soc_pcm_apply_symmetry(fe_substream, |
0b7990e3 | 1898 | codec_dai); |
906c7d69 PL |
1899 | if (err < 0) |
1900 | return err; | |
1901 | } | |
1902 | } | |
1903 | } | |
1904 | ||
1905 | return 0; | |
1906 | } | |
1907 | ||
01d7584c LG |
1908 | static int dpcm_fe_dai_startup(struct snd_pcm_substream *fe_substream) |
1909 | { | |
1910 | struct snd_soc_pcm_runtime *fe = fe_substream->private_data; | |
1911 | struct snd_pcm_runtime *runtime = fe_substream->runtime; | |
1912 | int stream = fe_substream->stream, ret = 0; | |
1913 | ||
ea9d0d77 | 1914 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_FE); |
01d7584c LG |
1915 | |
1916 | ret = dpcm_be_dai_startup(fe, fe_substream->stream); | |
1917 | if (ret < 0) { | |
103d84a3 | 1918 | dev_err(fe->dev,"ASoC: failed to start some BEs %d\n", ret); |
01d7584c LG |
1919 | goto be_err; |
1920 | } | |
1921 | ||
103d84a3 | 1922 | dev_dbg(fe->dev, "ASoC: open FE %s\n", fe->dai_link->name); |
01d7584c LG |
1923 | |
1924 | /* start the DAI frontend */ | |
1925 | ret = soc_pcm_open(fe_substream); | |
1926 | if (ret < 0) { | |
103d84a3 | 1927 | dev_err(fe->dev,"ASoC: failed to start FE %d\n", ret); |
01d7584c LG |
1928 | goto unwind; |
1929 | } | |
1930 | ||
1931 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_OPEN; | |
1932 | ||
1933 | dpcm_set_fe_runtime(fe_substream); | |
1934 | snd_pcm_limit_hw_rates(runtime); | |
1935 | ||
906c7d69 PL |
1936 | ret = dpcm_apply_symmetry(fe_substream, stream); |
1937 | if (ret < 0) { | |
1938 | dev_err(fe->dev, "ASoC: failed to apply dpcm symmetry %d\n", | |
1939 | ret); | |
1940 | goto unwind; | |
1941 | } | |
1942 | ||
ea9d0d77 | 1943 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_NO); |
01d7584c LG |
1944 | return 0; |
1945 | ||
1946 | unwind: | |
1947 | dpcm_be_dai_startup_unwind(fe, fe_substream->stream); | |
1948 | be_err: | |
ea9d0d77 | 1949 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_NO); |
01d7584c LG |
1950 | return ret; |
1951 | } | |
1952 | ||
23607025 | 1953 | int dpcm_be_dai_shutdown(struct snd_soc_pcm_runtime *fe, int stream) |
01d7584c LG |
1954 | { |
1955 | struct snd_soc_dpcm *dpcm; | |
1956 | ||
1957 | /* only shutdown BEs that are either sinks or sources to this FE DAI */ | |
8d6258a4 | 1958 | for_each_dpcm_be(fe, stream, dpcm) { |
01d7584c LG |
1959 | |
1960 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
1961 | struct snd_pcm_substream *be_substream = | |
1962 | snd_soc_dpcm_get_substream(be, stream); | |
1963 | ||
1964 | /* is this op for this BE ? */ | |
1965 | if (!snd_soc_dpcm_be_can_update(fe, be, stream)) | |
1966 | continue; | |
1967 | ||
1968 | if (be->dpcm[stream].users == 0) | |
103d84a3 | 1969 | dev_err(be->dev, "ASoC: no users %s at close - state %d\n", |
01d7584c LG |
1970 | stream ? "capture" : "playback", |
1971 | be->dpcm[stream].state); | |
1972 | ||
1973 | if (--be->dpcm[stream].users != 0) | |
1974 | continue; | |
1975 | ||
1976 | if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_FREE) && | |
9c0ac70a KCC |
1977 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_OPEN)) { |
1978 | soc_pcm_hw_free(be_substream); | |
1979 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_HW_FREE; | |
1980 | } | |
01d7584c | 1981 | |
103d84a3 | 1982 | dev_dbg(be->dev, "ASoC: close BE %s\n", |
94d215cc | 1983 | be->dai_link->name); |
01d7584c LG |
1984 | |
1985 | soc_pcm_close(be_substream); | |
1986 | be_substream->runtime = NULL; | |
1987 | ||
1988 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_CLOSE; | |
1989 | } | |
1990 | return 0; | |
1991 | } | |
1992 | ||
1993 | static int dpcm_fe_dai_shutdown(struct snd_pcm_substream *substream) | |
1994 | { | |
1995 | struct snd_soc_pcm_runtime *fe = substream->private_data; | |
1996 | int stream = substream->stream; | |
1997 | ||
ea9d0d77 | 1998 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_FE); |
01d7584c LG |
1999 | |
2000 | /* shutdown the BEs */ | |
2001 | dpcm_be_dai_shutdown(fe, substream->stream); | |
2002 | ||
103d84a3 | 2003 | dev_dbg(fe->dev, "ASoC: close FE %s\n", fe->dai_link->name); |
01d7584c LG |
2004 | |
2005 | /* now shutdown the frontend */ | |
2006 | soc_pcm_close(substream); | |
2007 | ||
2008 | /* run the stream event for each BE */ | |
1c531230 | 2009 | dpcm_dapm_stream_event(fe, stream, SND_SOC_DAPM_STREAM_STOP); |
01d7584c LG |
2010 | |
2011 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_CLOSE; | |
ea9d0d77 | 2012 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_NO); |
01d7584c LG |
2013 | return 0; |
2014 | } | |
2015 | ||
23607025 | 2016 | int dpcm_be_dai_hw_free(struct snd_soc_pcm_runtime *fe, int stream) |
01d7584c LG |
2017 | { |
2018 | struct snd_soc_dpcm *dpcm; | |
2019 | ||
2020 | /* only hw_params backends that are either sinks or sources | |
2021 | * to this frontend DAI */ | |
8d6258a4 | 2022 | for_each_dpcm_be(fe, stream, dpcm) { |
01d7584c LG |
2023 | |
2024 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
2025 | struct snd_pcm_substream *be_substream = | |
2026 | snd_soc_dpcm_get_substream(be, stream); | |
2027 | ||
2028 | /* is this op for this BE ? */ | |
2029 | if (!snd_soc_dpcm_be_can_update(fe, be, stream)) | |
2030 | continue; | |
2031 | ||
2032 | /* only free hw when no longer used - check all FEs */ | |
2033 | if (!snd_soc_dpcm_can_be_free_stop(fe, be, stream)) | |
2034 | continue; | |
2035 | ||
36fba62c QZ |
2036 | /* do not free hw if this BE is used by other FE */ |
2037 | if (be->dpcm[stream].users > 1) | |
2038 | continue; | |
2039 | ||
01d7584c LG |
2040 | if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_PARAMS) && |
2041 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_PREPARE) && | |
2042 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_FREE) && | |
08b27848 | 2043 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_PAUSED) && |
5e82d2be VK |
2044 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_STOP) && |
2045 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_SUSPEND)) | |
01d7584c LG |
2046 | continue; |
2047 | ||
103d84a3 | 2048 | dev_dbg(be->dev, "ASoC: hw_free BE %s\n", |
94d215cc | 2049 | be->dai_link->name); |
01d7584c LG |
2050 | |
2051 | soc_pcm_hw_free(be_substream); | |
2052 | ||
2053 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_HW_FREE; | |
2054 | } | |
2055 | ||
2056 | return 0; | |
2057 | } | |
2058 | ||
45c0a188 | 2059 | static int dpcm_fe_dai_hw_free(struct snd_pcm_substream *substream) |
01d7584c LG |
2060 | { |
2061 | struct snd_soc_pcm_runtime *fe = substream->private_data; | |
2062 | int err, stream = substream->stream; | |
2063 | ||
2064 | mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME); | |
ea9d0d77 | 2065 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_FE); |
01d7584c | 2066 | |
103d84a3 | 2067 | dev_dbg(fe->dev, "ASoC: hw_free FE %s\n", fe->dai_link->name); |
01d7584c LG |
2068 | |
2069 | /* call hw_free on the frontend */ | |
2070 | err = soc_pcm_hw_free(substream); | |
2071 | if (err < 0) | |
103d84a3 | 2072 | dev_err(fe->dev,"ASoC: hw_free FE %s failed\n", |
01d7584c LG |
2073 | fe->dai_link->name); |
2074 | ||
2075 | /* only hw_params backends that are either sinks or sources | |
2076 | * to this frontend DAI */ | |
2077 | err = dpcm_be_dai_hw_free(fe, stream); | |
2078 | ||
2079 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_HW_FREE; | |
ea9d0d77 | 2080 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_NO); |
01d7584c LG |
2081 | |
2082 | mutex_unlock(&fe->card->mutex); | |
2083 | return 0; | |
2084 | } | |
2085 | ||
23607025 | 2086 | int dpcm_be_dai_hw_params(struct snd_soc_pcm_runtime *fe, int stream) |
01d7584c LG |
2087 | { |
2088 | struct snd_soc_dpcm *dpcm; | |
2089 | int ret; | |
2090 | ||
8d6258a4 | 2091 | for_each_dpcm_be(fe, stream, dpcm) { |
01d7584c LG |
2092 | |
2093 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
2094 | struct snd_pcm_substream *be_substream = | |
2095 | snd_soc_dpcm_get_substream(be, stream); | |
2096 | ||
2097 | /* is this op for this BE ? */ | |
2098 | if (!snd_soc_dpcm_be_can_update(fe, be, stream)) | |
2099 | continue; | |
2100 | ||
01d7584c LG |
2101 | /* copy params for each dpcm */ |
2102 | memcpy(&dpcm->hw_params, &fe->dpcm[stream].hw_params, | |
2103 | sizeof(struct snd_pcm_hw_params)); | |
2104 | ||
2105 | /* perform any hw_params fixups */ | |
2106 | if (be->dai_link->be_hw_params_fixup) { | |
2107 | ret = be->dai_link->be_hw_params_fixup(be, | |
2108 | &dpcm->hw_params); | |
2109 | if (ret < 0) { | |
2110 | dev_err(be->dev, | |
103d84a3 | 2111 | "ASoC: hw_params BE fixup failed %d\n", |
01d7584c LG |
2112 | ret); |
2113 | goto unwind; | |
2114 | } | |
2115 | } | |
2116 | ||
ae061d2a LY |
2117 | /* copy the fixed-up hw params for BE dai */ |
2118 | memcpy(&be->dpcm[stream].hw_params, &dpcm->hw_params, | |
2119 | sizeof(struct snd_pcm_hw_params)); | |
2120 | ||
b0639bd2 KM |
2121 | /* only allow hw_params() if no connected FEs are running */ |
2122 | if (!snd_soc_dpcm_can_be_params(fe, be, stream)) | |
2123 | continue; | |
2124 | ||
2125 | if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_OPEN) && | |
2126 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_PARAMS) && | |
2127 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_FREE)) | |
2128 | continue; | |
2129 | ||
2130 | dev_dbg(be->dev, "ASoC: hw_params BE %s\n", | |
94d215cc | 2131 | be->dai_link->name); |
b0639bd2 | 2132 | |
01d7584c LG |
2133 | ret = soc_pcm_hw_params(be_substream, &dpcm->hw_params); |
2134 | if (ret < 0) { | |
2135 | dev_err(dpcm->be->dev, | |
103d84a3 | 2136 | "ASoC: hw_params BE failed %d\n", ret); |
01d7584c LG |
2137 | goto unwind; |
2138 | } | |
2139 | ||
2140 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_HW_PARAMS; | |
2141 | } | |
2142 | return 0; | |
2143 | ||
2144 | unwind: | |
2145 | /* disable any enabled and non active backends */ | |
8d6258a4 | 2146 | for_each_dpcm_be_rollback(fe, stream, dpcm) { |
01d7584c LG |
2147 | struct snd_soc_pcm_runtime *be = dpcm->be; |
2148 | struct snd_pcm_substream *be_substream = | |
2149 | snd_soc_dpcm_get_substream(be, stream); | |
2150 | ||
2151 | if (!snd_soc_dpcm_be_can_update(fe, be, stream)) | |
2152 | continue; | |
2153 | ||
2154 | /* only allow hw_free() if no connected FEs are running */ | |
2155 | if (!snd_soc_dpcm_can_be_free_stop(fe, be, stream)) | |
2156 | continue; | |
2157 | ||
2158 | if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_OPEN) && | |
2159 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_PARAMS) && | |
2160 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_FREE) && | |
2161 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_STOP)) | |
2162 | continue; | |
2163 | ||
2164 | soc_pcm_hw_free(be_substream); | |
2165 | } | |
2166 | ||
2167 | return ret; | |
2168 | } | |
2169 | ||
45c0a188 MB |
2170 | static int dpcm_fe_dai_hw_params(struct snd_pcm_substream *substream, |
2171 | struct snd_pcm_hw_params *params) | |
01d7584c LG |
2172 | { |
2173 | struct snd_soc_pcm_runtime *fe = substream->private_data; | |
2174 | int ret, stream = substream->stream; | |
2175 | ||
2176 | mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME); | |
ea9d0d77 | 2177 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_FE); |
01d7584c LG |
2178 | |
2179 | memcpy(&fe->dpcm[substream->stream].hw_params, params, | |
2180 | sizeof(struct snd_pcm_hw_params)); | |
2181 | ret = dpcm_be_dai_hw_params(fe, substream->stream); | |
2182 | if (ret < 0) { | |
103d84a3 | 2183 | dev_err(fe->dev,"ASoC: hw_params BE failed %d\n", ret); |
01d7584c LG |
2184 | goto out; |
2185 | } | |
2186 | ||
103d84a3 | 2187 | dev_dbg(fe->dev, "ASoC: hw_params FE %s rate %d chan %x fmt %d\n", |
01d7584c LG |
2188 | fe->dai_link->name, params_rate(params), |
2189 | params_channels(params), params_format(params)); | |
2190 | ||
2191 | /* call hw_params on the frontend */ | |
2192 | ret = soc_pcm_hw_params(substream, params); | |
2193 | if (ret < 0) { | |
103d84a3 | 2194 | dev_err(fe->dev,"ASoC: hw_params FE failed %d\n", ret); |
01d7584c LG |
2195 | dpcm_be_dai_hw_free(fe, stream); |
2196 | } else | |
2197 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_HW_PARAMS; | |
2198 | ||
2199 | out: | |
ea9d0d77 | 2200 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_NO); |
01d7584c LG |
2201 | mutex_unlock(&fe->card->mutex); |
2202 | return ret; | |
2203 | } | |
2204 | ||
2205 | static int dpcm_do_trigger(struct snd_soc_dpcm *dpcm, | |
2206 | struct snd_pcm_substream *substream, int cmd) | |
2207 | { | |
2208 | int ret; | |
2209 | ||
103d84a3 | 2210 | dev_dbg(dpcm->be->dev, "ASoC: trigger BE %s cmd %d\n", |
94d215cc | 2211 | dpcm->be->dai_link->name, cmd); |
01d7584c LG |
2212 | |
2213 | ret = soc_pcm_trigger(substream, cmd); | |
2214 | if (ret < 0) | |
103d84a3 | 2215 | dev_err(dpcm->be->dev,"ASoC: trigger BE failed %d\n", ret); |
01d7584c LG |
2216 | |
2217 | return ret; | |
2218 | } | |
2219 | ||
23607025 | 2220 | int dpcm_be_dai_trigger(struct snd_soc_pcm_runtime *fe, int stream, |
45c0a188 | 2221 | int cmd) |
01d7584c LG |
2222 | { |
2223 | struct snd_soc_dpcm *dpcm; | |
2224 | int ret = 0; | |
2225 | ||
8d6258a4 | 2226 | for_each_dpcm_be(fe, stream, dpcm) { |
01d7584c LG |
2227 | |
2228 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
2229 | struct snd_pcm_substream *be_substream = | |
2230 | snd_soc_dpcm_get_substream(be, stream); | |
2231 | ||
2232 | /* is this op for this BE ? */ | |
2233 | if (!snd_soc_dpcm_be_can_update(fe, be, stream)) | |
2234 | continue; | |
2235 | ||
2236 | switch (cmd) { | |
2237 | case SNDRV_PCM_TRIGGER_START: | |
2238 | if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_PREPARE) && | |
2239 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_STOP)) | |
2240 | continue; | |
2241 | ||
2242 | ret = dpcm_do_trigger(dpcm, be_substream, cmd); | |
2243 | if (ret) | |
2244 | return ret; | |
2245 | ||
2246 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_START; | |
2247 | break; | |
2248 | case SNDRV_PCM_TRIGGER_RESUME: | |
2249 | if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_SUSPEND)) | |
2250 | continue; | |
2251 | ||
2252 | ret = dpcm_do_trigger(dpcm, be_substream, cmd); | |
2253 | if (ret) | |
2254 | return ret; | |
2255 | ||
2256 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_START; | |
2257 | break; | |
2258 | case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: | |
2259 | if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_PAUSED)) | |
2260 | continue; | |
2261 | ||
2262 | ret = dpcm_do_trigger(dpcm, be_substream, cmd); | |
2263 | if (ret) | |
2264 | return ret; | |
2265 | ||
2266 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_START; | |
2267 | break; | |
2268 | case SNDRV_PCM_TRIGGER_STOP: | |
2269 | if (be->dpcm[stream].state != SND_SOC_DPCM_STATE_START) | |
2270 | continue; | |
2271 | ||
2272 | if (!snd_soc_dpcm_can_be_free_stop(fe, be, stream)) | |
2273 | continue; | |
2274 | ||
2275 | ret = dpcm_do_trigger(dpcm, be_substream, cmd); | |
2276 | if (ret) | |
2277 | return ret; | |
2278 | ||
2279 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_STOP; | |
2280 | break; | |
2281 | case SNDRV_PCM_TRIGGER_SUSPEND: | |
868a6ca8 | 2282 | if (be->dpcm[stream].state != SND_SOC_DPCM_STATE_START) |
01d7584c LG |
2283 | continue; |
2284 | ||
2285 | if (!snd_soc_dpcm_can_be_free_stop(fe, be, stream)) | |
2286 | continue; | |
2287 | ||
2288 | ret = dpcm_do_trigger(dpcm, be_substream, cmd); | |
2289 | if (ret) | |
2290 | return ret; | |
2291 | ||
2292 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_SUSPEND; | |
2293 | break; | |
2294 | case SNDRV_PCM_TRIGGER_PAUSE_PUSH: | |
2295 | if (be->dpcm[stream].state != SND_SOC_DPCM_STATE_START) | |
2296 | continue; | |
2297 | ||
2298 | if (!snd_soc_dpcm_can_be_free_stop(fe, be, stream)) | |
2299 | continue; | |
2300 | ||
2301 | ret = dpcm_do_trigger(dpcm, be_substream, cmd); | |
2302 | if (ret) | |
2303 | return ret; | |
2304 | ||
2305 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_PAUSED; | |
2306 | break; | |
2307 | } | |
2308 | } | |
2309 | ||
2310 | return ret; | |
2311 | } | |
2312 | EXPORT_SYMBOL_GPL(dpcm_be_dai_trigger); | |
2313 | ||
acbf2774 RS |
2314 | static int dpcm_dai_trigger_fe_be(struct snd_pcm_substream *substream, |
2315 | int cmd, bool fe_first) | |
2316 | { | |
2317 | struct snd_soc_pcm_runtime *fe = substream->private_data; | |
2318 | int ret; | |
2319 | ||
2320 | /* call trigger on the frontend before the backend. */ | |
2321 | if (fe_first) { | |
2322 | dev_dbg(fe->dev, "ASoC: pre trigger FE %s cmd %d\n", | |
2323 | fe->dai_link->name, cmd); | |
2324 | ||
2325 | ret = soc_pcm_trigger(substream, cmd); | |
2326 | if (ret < 0) | |
2327 | return ret; | |
2328 | ||
2329 | ret = dpcm_be_dai_trigger(fe, substream->stream, cmd); | |
2330 | return ret; | |
2331 | } | |
2332 | ||
2333 | /* call trigger on the frontend after the backend. */ | |
2334 | ret = dpcm_be_dai_trigger(fe, substream->stream, cmd); | |
2335 | if (ret < 0) | |
2336 | return ret; | |
2337 | ||
2338 | dev_dbg(fe->dev, "ASoC: post trigger FE %s cmd %d\n", | |
2339 | fe->dai_link->name, cmd); | |
2340 | ||
2341 | ret = soc_pcm_trigger(substream, cmd); | |
2342 | ||
2343 | return ret; | |
2344 | } | |
2345 | ||
ea9d0d77 | 2346 | static int dpcm_fe_dai_do_trigger(struct snd_pcm_substream *substream, int cmd) |
01d7584c LG |
2347 | { |
2348 | struct snd_soc_pcm_runtime *fe = substream->private_data; | |
acbf2774 RS |
2349 | int stream = substream->stream; |
2350 | int ret = 0; | |
01d7584c LG |
2351 | enum snd_soc_dpcm_trigger trigger = fe->dai_link->trigger[stream]; |
2352 | ||
2353 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_FE; | |
2354 | ||
2355 | switch (trigger) { | |
2356 | case SND_SOC_DPCM_TRIGGER_PRE: | |
acbf2774 RS |
2357 | switch (cmd) { |
2358 | case SNDRV_PCM_TRIGGER_START: | |
2359 | case SNDRV_PCM_TRIGGER_RESUME: | |
2360 | case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: | |
2361 | ret = dpcm_dai_trigger_fe_be(substream, cmd, true); | |
2362 | break; | |
2363 | case SNDRV_PCM_TRIGGER_STOP: | |
2364 | case SNDRV_PCM_TRIGGER_SUSPEND: | |
2365 | case SNDRV_PCM_TRIGGER_PAUSE_PUSH: | |
2366 | ret = dpcm_dai_trigger_fe_be(substream, cmd, false); | |
2367 | break; | |
2368 | default: | |
2369 | ret = -EINVAL; | |
2370 | break; | |
01d7584c | 2371 | } |
01d7584c LG |
2372 | break; |
2373 | case SND_SOC_DPCM_TRIGGER_POST: | |
acbf2774 RS |
2374 | switch (cmd) { |
2375 | case SNDRV_PCM_TRIGGER_START: | |
2376 | case SNDRV_PCM_TRIGGER_RESUME: | |
2377 | case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: | |
2378 | ret = dpcm_dai_trigger_fe_be(substream, cmd, false); | |
2379 | break; | |
2380 | case SNDRV_PCM_TRIGGER_STOP: | |
2381 | case SNDRV_PCM_TRIGGER_SUSPEND: | |
2382 | case SNDRV_PCM_TRIGGER_PAUSE_PUSH: | |
2383 | ret = dpcm_dai_trigger_fe_be(substream, cmd, true); | |
2384 | break; | |
2385 | default: | |
2386 | ret = -EINVAL; | |
2387 | break; | |
01d7584c | 2388 | } |
01d7584c | 2389 | break; |
07bf84aa LG |
2390 | case SND_SOC_DPCM_TRIGGER_BESPOKE: |
2391 | /* bespoke trigger() - handles both FE and BEs */ | |
2392 | ||
103d84a3 | 2393 | dev_dbg(fe->dev, "ASoC: bespoke trigger FE %s cmd %d\n", |
07bf84aa LG |
2394 | fe->dai_link->name, cmd); |
2395 | ||
2396 | ret = soc_pcm_bespoke_trigger(substream, cmd); | |
07bf84aa | 2397 | break; |
01d7584c | 2398 | default: |
103d84a3 | 2399 | dev_err(fe->dev, "ASoC: invalid trigger cmd %d for %s\n", cmd, |
01d7584c LG |
2400 | fe->dai_link->name); |
2401 | ret = -EINVAL; | |
2402 | goto out; | |
2403 | } | |
2404 | ||
acbf2774 RS |
2405 | if (ret < 0) { |
2406 | dev_err(fe->dev, "ASoC: trigger FE cmd: %d failed: %d\n", | |
2407 | cmd, ret); | |
2408 | goto out; | |
2409 | } | |
2410 | ||
01d7584c LG |
2411 | switch (cmd) { |
2412 | case SNDRV_PCM_TRIGGER_START: | |
2413 | case SNDRV_PCM_TRIGGER_RESUME: | |
2414 | case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: | |
2415 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_START; | |
2416 | break; | |
2417 | case SNDRV_PCM_TRIGGER_STOP: | |
2418 | case SNDRV_PCM_TRIGGER_SUSPEND: | |
01d7584c LG |
2419 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_STOP; |
2420 | break; | |
9f169b9f PL |
2421 | case SNDRV_PCM_TRIGGER_PAUSE_PUSH: |
2422 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_PAUSED; | |
2423 | break; | |
01d7584c LG |
2424 | } |
2425 | ||
2426 | out: | |
2427 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO; | |
2428 | return ret; | |
2429 | } | |
2430 | ||
ea9d0d77 TI |
2431 | static int dpcm_fe_dai_trigger(struct snd_pcm_substream *substream, int cmd) |
2432 | { | |
2433 | struct snd_soc_pcm_runtime *fe = substream->private_data; | |
2434 | int stream = substream->stream; | |
2435 | ||
2436 | /* if FE's runtime_update is already set, we're in race; | |
2437 | * process this trigger later at exit | |
2438 | */ | |
2439 | if (fe->dpcm[stream].runtime_update != SND_SOC_DPCM_UPDATE_NO) { | |
2440 | fe->dpcm[stream].trigger_pending = cmd + 1; | |
2441 | return 0; /* delayed, assuming it's successful */ | |
2442 | } | |
2443 | ||
2444 | /* we're alone, let's trigger */ | |
2445 | return dpcm_fe_dai_do_trigger(substream, cmd); | |
2446 | } | |
2447 | ||
23607025 | 2448 | int dpcm_be_dai_prepare(struct snd_soc_pcm_runtime *fe, int stream) |
01d7584c LG |
2449 | { |
2450 | struct snd_soc_dpcm *dpcm; | |
2451 | int ret = 0; | |
2452 | ||
8d6258a4 | 2453 | for_each_dpcm_be(fe, stream, dpcm) { |
01d7584c LG |
2454 | |
2455 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
2456 | struct snd_pcm_substream *be_substream = | |
2457 | snd_soc_dpcm_get_substream(be, stream); | |
2458 | ||
2459 | /* is this op for this BE ? */ | |
2460 | if (!snd_soc_dpcm_be_can_update(fe, be, stream)) | |
2461 | continue; | |
2462 | ||
2463 | if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_PARAMS) && | |
95f444dc | 2464 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_STOP) && |
5087a8f1 LY |
2465 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_SUSPEND) && |
2466 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_PAUSED)) | |
01d7584c LG |
2467 | continue; |
2468 | ||
103d84a3 | 2469 | dev_dbg(be->dev, "ASoC: prepare BE %s\n", |
94d215cc | 2470 | be->dai_link->name); |
01d7584c LG |
2471 | |
2472 | ret = soc_pcm_prepare(be_substream); | |
2473 | if (ret < 0) { | |
103d84a3 | 2474 | dev_err(be->dev, "ASoC: backend prepare failed %d\n", |
01d7584c LG |
2475 | ret); |
2476 | break; | |
2477 | } | |
2478 | ||
2479 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_PREPARE; | |
2480 | } | |
2481 | return ret; | |
2482 | } | |
2483 | ||
45c0a188 | 2484 | static int dpcm_fe_dai_prepare(struct snd_pcm_substream *substream) |
01d7584c LG |
2485 | { |
2486 | struct snd_soc_pcm_runtime *fe = substream->private_data; | |
2487 | int stream = substream->stream, ret = 0; | |
2488 | ||
2489 | mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME); | |
2490 | ||
103d84a3 | 2491 | dev_dbg(fe->dev, "ASoC: prepare FE %s\n", fe->dai_link->name); |
01d7584c | 2492 | |
ea9d0d77 | 2493 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_FE); |
01d7584c LG |
2494 | |
2495 | /* there is no point preparing this FE if there are no BEs */ | |
2496 | if (list_empty(&fe->dpcm[stream].be_clients)) { | |
103d84a3 | 2497 | dev_err(fe->dev, "ASoC: no backend DAIs enabled for %s\n", |
01d7584c LG |
2498 | fe->dai_link->name); |
2499 | ret = -EINVAL; | |
2500 | goto out; | |
2501 | } | |
2502 | ||
2503 | ret = dpcm_be_dai_prepare(fe, substream->stream); | |
2504 | if (ret < 0) | |
2505 | goto out; | |
2506 | ||
2507 | /* call prepare on the frontend */ | |
2508 | ret = soc_pcm_prepare(substream); | |
2509 | if (ret < 0) { | |
103d84a3 | 2510 | dev_err(fe->dev,"ASoC: prepare FE %s failed\n", |
01d7584c LG |
2511 | fe->dai_link->name); |
2512 | goto out; | |
2513 | } | |
2514 | ||
2515 | /* run the stream event for each BE */ | |
2516 | dpcm_dapm_stream_event(fe, stream, SND_SOC_DAPM_STREAM_START); | |
2517 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_PREPARE; | |
2518 | ||
2519 | out: | |
ea9d0d77 | 2520 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_NO); |
01d7584c LG |
2521 | mutex_unlock(&fe->card->mutex); |
2522 | ||
2523 | return ret; | |
2524 | } | |
2525 | ||
618dae11 LG |
2526 | static int dpcm_run_update_shutdown(struct snd_soc_pcm_runtime *fe, int stream) |
2527 | { | |
07bf84aa LG |
2528 | struct snd_pcm_substream *substream = |
2529 | snd_soc_dpcm_get_substream(fe, stream); | |
2530 | enum snd_soc_dpcm_trigger trigger = fe->dai_link->trigger[stream]; | |
618dae11 LG |
2531 | int err; |
2532 | ||
103d84a3 | 2533 | dev_dbg(fe->dev, "ASoC: runtime %s close on FE %s\n", |
618dae11 LG |
2534 | stream ? "capture" : "playback", fe->dai_link->name); |
2535 | ||
07bf84aa LG |
2536 | if (trigger == SND_SOC_DPCM_TRIGGER_BESPOKE) { |
2537 | /* call bespoke trigger - FE takes care of all BE triggers */ | |
103d84a3 | 2538 | dev_dbg(fe->dev, "ASoC: bespoke trigger FE %s cmd stop\n", |
07bf84aa LG |
2539 | fe->dai_link->name); |
2540 | ||
2541 | err = soc_pcm_bespoke_trigger(substream, SNDRV_PCM_TRIGGER_STOP); | |
2542 | if (err < 0) | |
103d84a3 | 2543 | dev_err(fe->dev,"ASoC: trigger FE failed %d\n", err); |
07bf84aa | 2544 | } else { |
103d84a3 | 2545 | dev_dbg(fe->dev, "ASoC: trigger FE %s cmd stop\n", |
07bf84aa LG |
2546 | fe->dai_link->name); |
2547 | ||
2548 | err = dpcm_be_dai_trigger(fe, stream, SNDRV_PCM_TRIGGER_STOP); | |
2549 | if (err < 0) | |
103d84a3 | 2550 | dev_err(fe->dev,"ASoC: trigger FE failed %d\n", err); |
07bf84aa | 2551 | } |
618dae11 LG |
2552 | |
2553 | err = dpcm_be_dai_hw_free(fe, stream); | |
2554 | if (err < 0) | |
103d84a3 | 2555 | dev_err(fe->dev,"ASoC: hw_free FE failed %d\n", err); |
618dae11 LG |
2556 | |
2557 | err = dpcm_be_dai_shutdown(fe, stream); | |
2558 | if (err < 0) | |
103d84a3 | 2559 | dev_err(fe->dev,"ASoC: shutdown FE failed %d\n", err); |
618dae11 LG |
2560 | |
2561 | /* run the stream event for each BE */ | |
2562 | dpcm_dapm_stream_event(fe, stream, SND_SOC_DAPM_STREAM_NOP); | |
2563 | ||
2564 | return 0; | |
2565 | } | |
2566 | ||
2567 | static int dpcm_run_update_startup(struct snd_soc_pcm_runtime *fe, int stream) | |
2568 | { | |
07bf84aa LG |
2569 | struct snd_pcm_substream *substream = |
2570 | snd_soc_dpcm_get_substream(fe, stream); | |
618dae11 | 2571 | struct snd_soc_dpcm *dpcm; |
07bf84aa | 2572 | enum snd_soc_dpcm_trigger trigger = fe->dai_link->trigger[stream]; |
618dae11 | 2573 | int ret; |
a9764869 | 2574 | unsigned long flags; |
618dae11 | 2575 | |
103d84a3 | 2576 | dev_dbg(fe->dev, "ASoC: runtime %s open on FE %s\n", |
618dae11 LG |
2577 | stream ? "capture" : "playback", fe->dai_link->name); |
2578 | ||
2579 | /* Only start the BE if the FE is ready */ | |
2580 | if (fe->dpcm[stream].state == SND_SOC_DPCM_STATE_HW_FREE || | |
2581 | fe->dpcm[stream].state == SND_SOC_DPCM_STATE_CLOSE) | |
2582 | return -EINVAL; | |
2583 | ||
2584 | /* startup must always be called for new BEs */ | |
2585 | ret = dpcm_be_dai_startup(fe, stream); | |
fffc0ca2 | 2586 | if (ret < 0) |
618dae11 | 2587 | goto disconnect; |
618dae11 LG |
2588 | |
2589 | /* keep going if FE state is > open */ | |
2590 | if (fe->dpcm[stream].state == SND_SOC_DPCM_STATE_OPEN) | |
2591 | return 0; | |
01d7584c | 2592 | |
618dae11 | 2593 | ret = dpcm_be_dai_hw_params(fe, stream); |
fffc0ca2 | 2594 | if (ret < 0) |
618dae11 | 2595 | goto close; |
618dae11 LG |
2596 | |
2597 | /* keep going if FE state is > hw_params */ | |
2598 | if (fe->dpcm[stream].state == SND_SOC_DPCM_STATE_HW_PARAMS) | |
2599 | return 0; | |
2600 | ||
2601 | ||
2602 | ret = dpcm_be_dai_prepare(fe, stream); | |
fffc0ca2 | 2603 | if (ret < 0) |
618dae11 | 2604 | goto hw_free; |
618dae11 LG |
2605 | |
2606 | /* run the stream event for each BE */ | |
2607 | dpcm_dapm_stream_event(fe, stream, SND_SOC_DAPM_STREAM_NOP); | |
2608 | ||
2609 | /* keep going if FE state is > prepare */ | |
2610 | if (fe->dpcm[stream].state == SND_SOC_DPCM_STATE_PREPARE || | |
2611 | fe->dpcm[stream].state == SND_SOC_DPCM_STATE_STOP) | |
2612 | return 0; | |
2613 | ||
07bf84aa LG |
2614 | if (trigger == SND_SOC_DPCM_TRIGGER_BESPOKE) { |
2615 | /* call trigger on the frontend - FE takes care of all BE triggers */ | |
103d84a3 | 2616 | dev_dbg(fe->dev, "ASoC: bespoke trigger FE %s cmd start\n", |
07bf84aa | 2617 | fe->dai_link->name); |
618dae11 | 2618 | |
07bf84aa LG |
2619 | ret = soc_pcm_bespoke_trigger(substream, SNDRV_PCM_TRIGGER_START); |
2620 | if (ret < 0) { | |
103d84a3 | 2621 | dev_err(fe->dev,"ASoC: bespoke trigger FE failed %d\n", ret); |
07bf84aa LG |
2622 | goto hw_free; |
2623 | } | |
2624 | } else { | |
103d84a3 | 2625 | dev_dbg(fe->dev, "ASoC: trigger FE %s cmd start\n", |
07bf84aa LG |
2626 | fe->dai_link->name); |
2627 | ||
2628 | ret = dpcm_be_dai_trigger(fe, stream, | |
2629 | SNDRV_PCM_TRIGGER_START); | |
2630 | if (ret < 0) { | |
103d84a3 | 2631 | dev_err(fe->dev,"ASoC: trigger FE failed %d\n", ret); |
07bf84aa LG |
2632 | goto hw_free; |
2633 | } | |
618dae11 LG |
2634 | } |
2635 | ||
2636 | return 0; | |
2637 | ||
2638 | hw_free: | |
2639 | dpcm_be_dai_hw_free(fe, stream); | |
2640 | close: | |
2641 | dpcm_be_dai_shutdown(fe, stream); | |
2642 | disconnect: | |
2643 | /* disconnect any non started BEs */ | |
a9764869 | 2644 | spin_lock_irqsave(&fe->card->dpcm_lock, flags); |
8d6258a4 | 2645 | for_each_dpcm_be(fe, stream, dpcm) { |
618dae11 LG |
2646 | struct snd_soc_pcm_runtime *be = dpcm->be; |
2647 | if (be->dpcm[stream].state != SND_SOC_DPCM_STATE_START) | |
2648 | dpcm->state = SND_SOC_DPCM_LINK_STATE_FREE; | |
2649 | } | |
a9764869 | 2650 | spin_unlock_irqrestore(&fe->card->dpcm_lock, flags); |
618dae11 LG |
2651 | |
2652 | return ret; | |
2653 | } | |
2654 | ||
2655 | static int dpcm_run_new_update(struct snd_soc_pcm_runtime *fe, int stream) | |
2656 | { | |
2657 | int ret; | |
2658 | ||
ea9d0d77 | 2659 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_BE); |
618dae11 LG |
2660 | ret = dpcm_run_update_startup(fe, stream); |
2661 | if (ret < 0) | |
103d84a3 | 2662 | dev_err(fe->dev, "ASoC: failed to startup some BEs\n"); |
ea9d0d77 | 2663 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_NO); |
618dae11 LG |
2664 | |
2665 | return ret; | |
2666 | } | |
2667 | ||
2668 | static int dpcm_run_old_update(struct snd_soc_pcm_runtime *fe, int stream) | |
2669 | { | |
2670 | int ret; | |
2671 | ||
ea9d0d77 | 2672 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_BE); |
618dae11 LG |
2673 | ret = dpcm_run_update_shutdown(fe, stream); |
2674 | if (ret < 0) | |
103d84a3 | 2675 | dev_err(fe->dev, "ASoC: failed to shutdown some BEs\n"); |
ea9d0d77 | 2676 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_NO); |
618dae11 LG |
2677 | |
2678 | return ret; | |
2679 | } | |
2680 | ||
de15d7ff | 2681 | static int soc_dpcm_fe_runtime_update(struct snd_soc_pcm_runtime *fe, int new) |
618dae11 | 2682 | { |
de15d7ff JB |
2683 | struct snd_soc_dapm_widget_list *list; |
2684 | int count, paths; | |
618dae11 | 2685 | |
de15d7ff JB |
2686 | if (!fe->dai_link->dynamic) |
2687 | return 0; | |
618dae11 | 2688 | |
de15d7ff JB |
2689 | /* only check active links */ |
2690 | if (!fe->cpu_dai->active) | |
2691 | return 0; | |
618dae11 | 2692 | |
de15d7ff JB |
2693 | /* DAPM sync will call this to update DSP paths */ |
2694 | dev_dbg(fe->dev, "ASoC: DPCM %s runtime update for FE %s\n", | |
2695 | new ? "new" : "old", fe->dai_link->name); | |
618dae11 | 2696 | |
de15d7ff | 2697 | /* skip if FE doesn't have playback capability */ |
467fece8 KM |
2698 | if (!snd_soc_dai_stream_valid(fe->cpu_dai, SNDRV_PCM_STREAM_PLAYBACK) || |
2699 | !snd_soc_dai_stream_valid(fe->codec_dai, SNDRV_PCM_STREAM_PLAYBACK)) | |
de15d7ff | 2700 | goto capture; |
618dae11 | 2701 | |
de15d7ff JB |
2702 | /* skip if FE isn't currently playing */ |
2703 | if (!fe->cpu_dai->playback_active || !fe->codec_dai->playback_active) | |
2704 | goto capture; | |
618dae11 | 2705 | |
de15d7ff JB |
2706 | paths = dpcm_path_get(fe, SNDRV_PCM_STREAM_PLAYBACK, &list); |
2707 | if (paths < 0) { | |
2708 | dev_warn(fe->dev, "ASoC: %s no valid %s path\n", | |
2709 | fe->dai_link->name, "playback"); | |
2710 | return paths; | |
2711 | } | |
618dae11 | 2712 | |
de15d7ff JB |
2713 | /* update any playback paths */ |
2714 | count = dpcm_process_paths(fe, SNDRV_PCM_STREAM_PLAYBACK, &list, new); | |
2715 | if (count) { | |
2716 | if (new) | |
2717 | dpcm_run_new_update(fe, SNDRV_PCM_STREAM_PLAYBACK); | |
2718 | else | |
618dae11 | 2719 | dpcm_run_old_update(fe, SNDRV_PCM_STREAM_PLAYBACK); |
618dae11 | 2720 | |
de15d7ff JB |
2721 | dpcm_clear_pending_state(fe, SNDRV_PCM_STREAM_PLAYBACK); |
2722 | dpcm_be_disconnect(fe, SNDRV_PCM_STREAM_PLAYBACK); | |
2723 | } | |
2724 | ||
2725 | dpcm_path_put(&list); | |
2726 | ||
618dae11 | 2727 | capture: |
de15d7ff | 2728 | /* skip if FE doesn't have capture capability */ |
467fece8 KM |
2729 | if (!snd_soc_dai_stream_valid(fe->cpu_dai, SNDRV_PCM_STREAM_CAPTURE) || |
2730 | !snd_soc_dai_stream_valid(fe->codec_dai, SNDRV_PCM_STREAM_CAPTURE)) | |
de15d7ff | 2731 | return 0; |
075207d2 | 2732 | |
de15d7ff JB |
2733 | /* skip if FE isn't currently capturing */ |
2734 | if (!fe->cpu_dai->capture_active || !fe->codec_dai->capture_active) | |
2735 | return 0; | |
618dae11 | 2736 | |
de15d7ff JB |
2737 | paths = dpcm_path_get(fe, SNDRV_PCM_STREAM_CAPTURE, &list); |
2738 | if (paths < 0) { | |
2739 | dev_warn(fe->dev, "ASoC: %s no valid %s path\n", | |
2740 | fe->dai_link->name, "capture"); | |
2741 | return paths; | |
2742 | } | |
618dae11 | 2743 | |
de15d7ff JB |
2744 | /* update any old capture paths */ |
2745 | count = dpcm_process_paths(fe, SNDRV_PCM_STREAM_CAPTURE, &list, new); | |
2746 | if (count) { | |
2747 | if (new) | |
618dae11 | 2748 | dpcm_run_new_update(fe, SNDRV_PCM_STREAM_CAPTURE); |
de15d7ff | 2749 | else |
618dae11 | 2750 | dpcm_run_old_update(fe, SNDRV_PCM_STREAM_CAPTURE); |
618dae11 | 2751 | |
de15d7ff JB |
2752 | dpcm_clear_pending_state(fe, SNDRV_PCM_STREAM_CAPTURE); |
2753 | dpcm_be_disconnect(fe, SNDRV_PCM_STREAM_CAPTURE); | |
618dae11 LG |
2754 | } |
2755 | ||
de15d7ff JB |
2756 | dpcm_path_put(&list); |
2757 | ||
618dae11 LG |
2758 | return 0; |
2759 | } | |
de15d7ff JB |
2760 | |
2761 | /* Called by DAPM mixer/mux changes to update audio routing between PCMs and | |
2762 | * any DAI links. | |
2763 | */ | |
2764 | int soc_dpcm_runtime_update(struct snd_soc_card *card) | |
2765 | { | |
2766 | struct snd_soc_pcm_runtime *fe; | |
2767 | int ret = 0; | |
2768 | ||
2769 | mutex_lock_nested(&card->mutex, SND_SOC_CARD_CLASS_RUNTIME); | |
2770 | /* shutdown all old paths first */ | |
bcb1fd1f | 2771 | for_each_card_rtds(card, fe) { |
de15d7ff JB |
2772 | ret = soc_dpcm_fe_runtime_update(fe, 0); |
2773 | if (ret) | |
2774 | goto out; | |
2775 | } | |
2776 | ||
2777 | /* bring new paths up */ | |
bcb1fd1f | 2778 | for_each_card_rtds(card, fe) { |
de15d7ff JB |
2779 | ret = soc_dpcm_fe_runtime_update(fe, 1); |
2780 | if (ret) | |
2781 | goto out; | |
2782 | } | |
2783 | ||
2784 | out: | |
2785 | mutex_unlock(&card->mutex); | |
2786 | return ret; | |
2787 | } | |
01d7584c LG |
2788 | int soc_dpcm_be_digital_mute(struct snd_soc_pcm_runtime *fe, int mute) |
2789 | { | |
2790 | struct snd_soc_dpcm *dpcm; | |
7afecb30 | 2791 | struct snd_soc_dai *dai; |
01d7584c | 2792 | |
8d6258a4 | 2793 | for_each_dpcm_be(fe, SNDRV_PCM_STREAM_PLAYBACK, dpcm) { |
01d7584c LG |
2794 | |
2795 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
2e5894d7 | 2796 | int i; |
01d7584c LG |
2797 | |
2798 | if (be->dai_link->ignore_suspend) | |
2799 | continue; | |
2800 | ||
7afecb30 | 2801 | for_each_rtd_codec_dai(be, i, dai) { |
2e5894d7 BC |
2802 | struct snd_soc_dai_driver *drv = dai->driver; |
2803 | ||
2804 | dev_dbg(be->dev, "ASoC: BE digital mute %s\n", | |
2805 | be->dai_link->name); | |
01d7584c | 2806 | |
2e5894d7 BC |
2807 | if (drv->ops && drv->ops->digital_mute && |
2808 | dai->playback_active) | |
2809 | drv->ops->digital_mute(dai, mute); | |
2810 | } | |
01d7584c LG |
2811 | } |
2812 | ||
2813 | return 0; | |
2814 | } | |
2815 | ||
45c0a188 | 2816 | static int dpcm_fe_dai_open(struct snd_pcm_substream *fe_substream) |
01d7584c LG |
2817 | { |
2818 | struct snd_soc_pcm_runtime *fe = fe_substream->private_data; | |
2819 | struct snd_soc_dpcm *dpcm; | |
2820 | struct snd_soc_dapm_widget_list *list; | |
2821 | int ret; | |
2822 | int stream = fe_substream->stream; | |
2823 | ||
2824 | mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME); | |
2825 | fe->dpcm[stream].runtime = fe_substream->runtime; | |
2826 | ||
8f70e515 QZ |
2827 | ret = dpcm_path_get(fe, stream, &list); |
2828 | if (ret < 0) { | |
2829 | mutex_unlock(&fe->card->mutex); | |
2830 | return ret; | |
2831 | } else if (ret == 0) { | |
103d84a3 | 2832 | dev_dbg(fe->dev, "ASoC: %s no valid %s route\n", |
01d7584c | 2833 | fe->dai_link->name, stream ? "capture" : "playback"); |
01d7584c LG |
2834 | } |
2835 | ||
2836 | /* calculate valid and active FE <-> BE dpcms */ | |
2837 | dpcm_process_paths(fe, stream, &list, 1); | |
2838 | ||
2839 | ret = dpcm_fe_dai_startup(fe_substream); | |
2840 | if (ret < 0) { | |
2841 | /* clean up all links */ | |
8d6258a4 | 2842 | for_each_dpcm_be(fe, stream, dpcm) |
01d7584c LG |
2843 | dpcm->state = SND_SOC_DPCM_LINK_STATE_FREE; |
2844 | ||
2845 | dpcm_be_disconnect(fe, stream); | |
2846 | fe->dpcm[stream].runtime = NULL; | |
2847 | } | |
2848 | ||
2849 | dpcm_clear_pending_state(fe, stream); | |
2850 | dpcm_path_put(&list); | |
2851 | mutex_unlock(&fe->card->mutex); | |
2852 | return ret; | |
2853 | } | |
2854 | ||
45c0a188 | 2855 | static int dpcm_fe_dai_close(struct snd_pcm_substream *fe_substream) |
01d7584c LG |
2856 | { |
2857 | struct snd_soc_pcm_runtime *fe = fe_substream->private_data; | |
2858 | struct snd_soc_dpcm *dpcm; | |
2859 | int stream = fe_substream->stream, ret; | |
2860 | ||
2861 | mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME); | |
2862 | ret = dpcm_fe_dai_shutdown(fe_substream); | |
2863 | ||
2864 | /* mark FE's links ready to prune */ | |
8d6258a4 | 2865 | for_each_dpcm_be(fe, stream, dpcm) |
01d7584c LG |
2866 | dpcm->state = SND_SOC_DPCM_LINK_STATE_FREE; |
2867 | ||
2868 | dpcm_be_disconnect(fe, stream); | |
2869 | ||
2870 | fe->dpcm[stream].runtime = NULL; | |
2871 | mutex_unlock(&fe->card->mutex); | |
2872 | return ret; | |
2873 | } | |
2874 | ||
ddee627c LG |
2875 | /* create a new pcm */ |
2876 | int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num) | |
2877 | { | |
2e5894d7 | 2878 | struct snd_soc_dai *codec_dai; |
ddee627c | 2879 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
2b544dd7 | 2880 | struct snd_soc_component *component; |
ddee627c LG |
2881 | struct snd_pcm *pcm; |
2882 | char new_name[64]; | |
2883 | int ret = 0, playback = 0, capture = 0; | |
2e5894d7 | 2884 | int i; |
ddee627c | 2885 | |
01d7584c | 2886 | if (rtd->dai_link->dynamic || rtd->dai_link->no_pcm) { |
1e9de42f LG |
2887 | playback = rtd->dai_link->dpcm_playback; |
2888 | capture = rtd->dai_link->dpcm_capture; | |
01d7584c | 2889 | } else { |
a342031c JB |
2890 | /* Adapt stream for codec2codec links */ |
2891 | struct snd_soc_pcm_stream *cpu_capture = rtd->dai_link->params ? | |
2892 | &cpu_dai->driver->playback : &cpu_dai->driver->capture; | |
2893 | struct snd_soc_pcm_stream *cpu_playback = rtd->dai_link->params ? | |
2894 | &cpu_dai->driver->capture : &cpu_dai->driver->playback; | |
2895 | ||
0b7990e3 | 2896 | for_each_rtd_codec_dai(rtd, i, codec_dai) { |
467fece8 | 2897 | if (snd_soc_dai_stream_valid(codec_dai, SNDRV_PCM_STREAM_PLAYBACK) && |
af4bac11 | 2898 | snd_soc_dai_stream_valid(cpu_dai, SNDRV_PCM_STREAM_CAPTURE)) |
2e5894d7 | 2899 | playback = 1; |
467fece8 | 2900 | if (snd_soc_dai_stream_valid(codec_dai, SNDRV_PCM_STREAM_CAPTURE) && |
af4bac11 | 2901 | snd_soc_dai_stream_valid(cpu_dai, SNDRV_PCM_STREAM_PLAYBACK)) |
2e5894d7 BC |
2902 | capture = 1; |
2903 | } | |
a342031c JB |
2904 | |
2905 | capture = capture && cpu_capture->channels_min; | |
2906 | playback = playback && cpu_playback->channels_min; | |
01d7584c LG |
2907 | } |
2908 | ||
d6bead02 FE |
2909 | if (rtd->dai_link->playback_only) { |
2910 | playback = 1; | |
2911 | capture = 0; | |
2912 | } | |
2913 | ||
2914 | if (rtd->dai_link->capture_only) { | |
2915 | playback = 0; | |
2916 | capture = 1; | |
2917 | } | |
2918 | ||
01d7584c | 2919 | /* create the PCM */ |
a342031c JB |
2920 | if (rtd->dai_link->params) { |
2921 | snprintf(new_name, sizeof(new_name), "codec2codec(%s)", | |
2922 | rtd->dai_link->stream_name); | |
2923 | ||
2924 | ret = snd_pcm_new_internal(rtd->card->snd_card, new_name, num, | |
2925 | playback, capture, &pcm); | |
2926 | } else if (rtd->dai_link->no_pcm) { | |
01d7584c LG |
2927 | snprintf(new_name, sizeof(new_name), "(%s)", |
2928 | rtd->dai_link->stream_name); | |
2929 | ||
2930 | ret = snd_pcm_new_internal(rtd->card->snd_card, new_name, num, | |
2931 | playback, capture, &pcm); | |
2932 | } else { | |
2933 | if (rtd->dai_link->dynamic) | |
2934 | snprintf(new_name, sizeof(new_name), "%s (*)", | |
2935 | rtd->dai_link->stream_name); | |
2936 | else | |
2937 | snprintf(new_name, sizeof(new_name), "%s %s-%d", | |
2e5894d7 BC |
2938 | rtd->dai_link->stream_name, |
2939 | (rtd->num_codecs > 1) ? | |
2940 | "multicodec" : rtd->codec_dai->name, num); | |
01d7584c LG |
2941 | |
2942 | ret = snd_pcm_new(rtd->card->snd_card, new_name, num, playback, | |
2943 | capture, &pcm); | |
2944 | } | |
ddee627c | 2945 | if (ret < 0) { |
103d84a3 | 2946 | dev_err(rtd->card->dev, "ASoC: can't create pcm for %s\n", |
5cb9b748 | 2947 | rtd->dai_link->name); |
ddee627c LG |
2948 | return ret; |
2949 | } | |
103d84a3 | 2950 | dev_dbg(rtd->card->dev, "ASoC: registered pcm #%d %s\n",num, new_name); |
ddee627c LG |
2951 | |
2952 | /* DAPM dai link stream work */ | |
a342031c | 2953 | if (rtd->dai_link->params) |
4bf2e385 | 2954 | rtd->close_delayed_work_func = codec2codec_close_delayed_work; |
a342031c | 2955 | else |
83f94a2e | 2956 | rtd->close_delayed_work_func = snd_soc_close_delayed_work; |
ddee627c | 2957 | |
48c7699f | 2958 | pcm->nonatomic = rtd->dai_link->nonatomic; |
ddee627c LG |
2959 | rtd->pcm = pcm; |
2960 | pcm->private_data = rtd; | |
01d7584c | 2961 | |
a342031c | 2962 | if (rtd->dai_link->no_pcm || rtd->dai_link->params) { |
01d7584c LG |
2963 | if (playback) |
2964 | pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream->private_data = rtd; | |
2965 | if (capture) | |
2966 | pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream->private_data = rtd; | |
2967 | goto out; | |
2968 | } | |
2969 | ||
2970 | /* ASoC PCM operations */ | |
2971 | if (rtd->dai_link->dynamic) { | |
2972 | rtd->ops.open = dpcm_fe_dai_open; | |
2973 | rtd->ops.hw_params = dpcm_fe_dai_hw_params; | |
2974 | rtd->ops.prepare = dpcm_fe_dai_prepare; | |
2975 | rtd->ops.trigger = dpcm_fe_dai_trigger; | |
2976 | rtd->ops.hw_free = dpcm_fe_dai_hw_free; | |
2977 | rtd->ops.close = dpcm_fe_dai_close; | |
2978 | rtd->ops.pointer = soc_pcm_pointer; | |
2979 | } else { | |
2980 | rtd->ops.open = soc_pcm_open; | |
2981 | rtd->ops.hw_params = soc_pcm_hw_params; | |
2982 | rtd->ops.prepare = soc_pcm_prepare; | |
2983 | rtd->ops.trigger = soc_pcm_trigger; | |
2984 | rtd->ops.hw_free = soc_pcm_hw_free; | |
2985 | rtd->ops.close = soc_pcm_close; | |
2986 | rtd->ops.pointer = soc_pcm_pointer; | |
2987 | } | |
2988 | ||
613fb500 | 2989 | for_each_rtd_components(rtd, i, component) { |
2b544dd7 | 2990 | const struct snd_soc_component_driver *drv = component->driver; |
b8135864 | 2991 | |
3b1c952c TI |
2992 | if (drv->ioctl) |
2993 | rtd->ops.ioctl = snd_soc_pcm_component_ioctl; | |
1e5ddb6b TI |
2994 | if (drv->sync_stop) |
2995 | rtd->ops.sync_stop = snd_soc_pcm_component_sync_stop; | |
e9067bb5 | 2996 | if (drv->copy_user) |
82d81f5c | 2997 | rtd->ops.copy_user = snd_soc_pcm_component_copy_user; |
e9067bb5 | 2998 | if (drv->page) |
9c712e4f | 2999 | rtd->ops.page = snd_soc_pcm_component_page; |
e9067bb5 | 3000 | if (drv->mmap) |
205875e1 | 3001 | rtd->ops.mmap = snd_soc_pcm_component_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 | |
b2b2afbb | 3010 | ret = snd_soc_pcm_component_new(rtd); |
7484291e KM |
3011 | if (ret < 0) { |
3012 | dev_err(rtd->dev, "ASoC: pcm constructor failed: %d\n", ret); | |
3013 | return ret; | |
ddee627c | 3014 | } |
c641e5b2 | 3015 | |
3d21ef0b | 3016 | pcm->no_device_suspend = true; |
01d7584c | 3017 | out: |
2e5894d7 BC |
3018 | dev_info(rtd->card->dev, "%s <-> %s mapping ok\n", |
3019 | (rtd->num_codecs > 1) ? "multicodec" : rtd->codec_dai->name, | |
3020 | cpu_dai->name); | |
ddee627c LG |
3021 | return ret; |
3022 | } | |
01d7584c LG |
3023 | |
3024 | /* is the current PCM operation for this FE ? */ | |
3025 | int snd_soc_dpcm_fe_can_update(struct snd_soc_pcm_runtime *fe, int stream) | |
3026 | { | |
3027 | if (fe->dpcm[stream].runtime_update == SND_SOC_DPCM_UPDATE_FE) | |
3028 | return 1; | |
3029 | return 0; | |
3030 | } | |
3031 | EXPORT_SYMBOL_GPL(snd_soc_dpcm_fe_can_update); | |
3032 | ||
3033 | /* is the current PCM operation for this BE ? */ | |
3034 | int snd_soc_dpcm_be_can_update(struct snd_soc_pcm_runtime *fe, | |
3035 | struct snd_soc_pcm_runtime *be, int stream) | |
3036 | { | |
3037 | if ((fe->dpcm[stream].runtime_update == SND_SOC_DPCM_UPDATE_FE) || | |
3038 | ((fe->dpcm[stream].runtime_update == SND_SOC_DPCM_UPDATE_BE) && | |
3039 | be->dpcm[stream].runtime_update)) | |
3040 | return 1; | |
3041 | return 0; | |
3042 | } | |
3043 | EXPORT_SYMBOL_GPL(snd_soc_dpcm_be_can_update); | |
3044 | ||
3045 | /* get the substream for this BE */ | |
3046 | struct snd_pcm_substream * | |
3047 | snd_soc_dpcm_get_substream(struct snd_soc_pcm_runtime *be, int stream) | |
3048 | { | |
3049 | return be->pcm->streams[stream].substream; | |
3050 | } | |
3051 | EXPORT_SYMBOL_GPL(snd_soc_dpcm_get_substream); | |
3052 | ||
3053 | /* get the BE runtime state */ | |
3054 | enum snd_soc_dpcm_state | |
3055 | snd_soc_dpcm_be_get_state(struct snd_soc_pcm_runtime *be, int stream) | |
3056 | { | |
3057 | return be->dpcm[stream].state; | |
3058 | } | |
3059 | EXPORT_SYMBOL_GPL(snd_soc_dpcm_be_get_state); | |
3060 | ||
3061 | /* set the BE runtime state */ | |
3062 | void snd_soc_dpcm_be_set_state(struct snd_soc_pcm_runtime *be, | |
3063 | int stream, enum snd_soc_dpcm_state state) | |
3064 | { | |
3065 | be->dpcm[stream].state = state; | |
3066 | } | |
3067 | EXPORT_SYMBOL_GPL(snd_soc_dpcm_be_set_state); | |
3068 | ||
3069 | /* | |
3070 | * We can only hw_free, stop, pause or suspend a BE DAI if any of it's FE | |
3071 | * are not running, paused or suspended for the specified stream direction. | |
3072 | */ | |
3073 | int snd_soc_dpcm_can_be_free_stop(struct snd_soc_pcm_runtime *fe, | |
3074 | struct snd_soc_pcm_runtime *be, int stream) | |
3075 | { | |
3076 | struct snd_soc_dpcm *dpcm; | |
3077 | int state; | |
a9764869 KC |
3078 | int ret = 1; |
3079 | unsigned long flags; | |
01d7584c | 3080 | |
a9764869 | 3081 | spin_lock_irqsave(&fe->card->dpcm_lock, flags); |
d2e24d64 | 3082 | for_each_dpcm_fe(be, stream, dpcm) { |
01d7584c LG |
3083 | |
3084 | if (dpcm->fe == fe) | |
3085 | continue; | |
3086 | ||
3087 | state = dpcm->fe->dpcm[stream].state; | |
3088 | if (state == SND_SOC_DPCM_STATE_START || | |
3089 | state == SND_SOC_DPCM_STATE_PAUSED || | |
a9764869 KC |
3090 | state == SND_SOC_DPCM_STATE_SUSPEND) { |
3091 | ret = 0; | |
3092 | break; | |
3093 | } | |
01d7584c | 3094 | } |
a9764869 | 3095 | spin_unlock_irqrestore(&fe->card->dpcm_lock, flags); |
01d7584c LG |
3096 | |
3097 | /* it's safe to free/stop this BE DAI */ | |
a9764869 | 3098 | return ret; |
01d7584c LG |
3099 | } |
3100 | EXPORT_SYMBOL_GPL(snd_soc_dpcm_can_be_free_stop); | |
3101 | ||
3102 | /* | |
3103 | * We can only change hw params a BE DAI if any of it's FE are not prepared, | |
3104 | * running, paused or suspended for the specified stream direction. | |
3105 | */ | |
3106 | int snd_soc_dpcm_can_be_params(struct snd_soc_pcm_runtime *fe, | |
3107 | struct snd_soc_pcm_runtime *be, int stream) | |
3108 | { | |
3109 | struct snd_soc_dpcm *dpcm; | |
3110 | int state; | |
a9764869 KC |
3111 | int ret = 1; |
3112 | unsigned long flags; | |
01d7584c | 3113 | |
a9764869 | 3114 | spin_lock_irqsave(&fe->card->dpcm_lock, flags); |
d2e24d64 | 3115 | for_each_dpcm_fe(be, stream, dpcm) { |
01d7584c LG |
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 || | |
a9764869 KC |
3124 | state == SND_SOC_DPCM_STATE_PREPARE) { |
3125 | ret = 0; | |
3126 | break; | |
3127 | } | |
01d7584c | 3128 | } |
a9764869 | 3129 | spin_unlock_irqrestore(&fe->card->dpcm_lock, flags); |
01d7584c LG |
3130 | |
3131 | /* it's safe to change hw_params */ | |
a9764869 | 3132 | return ret; |
01d7584c LG |
3133 | } |
3134 | EXPORT_SYMBOL_GPL(snd_soc_dpcm_can_be_params); | |
f86dcef8 LG |
3135 | |
3136 | #ifdef CONFIG_DEBUG_FS | |
85280141 | 3137 | static const char *dpcm_state_string(enum snd_soc_dpcm_state state) |
f86dcef8 LG |
3138 | { |
3139 | switch (state) { | |
3140 | case SND_SOC_DPCM_STATE_NEW: | |
3141 | return "new"; | |
3142 | case SND_SOC_DPCM_STATE_OPEN: | |
3143 | return "open"; | |
3144 | case SND_SOC_DPCM_STATE_HW_PARAMS: | |
3145 | return "hw_params"; | |
3146 | case SND_SOC_DPCM_STATE_PREPARE: | |
3147 | return "prepare"; | |
3148 | case SND_SOC_DPCM_STATE_START: | |
3149 | return "start"; | |
3150 | case SND_SOC_DPCM_STATE_STOP: | |
3151 | return "stop"; | |
3152 | case SND_SOC_DPCM_STATE_SUSPEND: | |
3153 | return "suspend"; | |
3154 | case SND_SOC_DPCM_STATE_PAUSED: | |
3155 | return "paused"; | |
3156 | case SND_SOC_DPCM_STATE_HW_FREE: | |
3157 | return "hw_free"; | |
3158 | case SND_SOC_DPCM_STATE_CLOSE: | |
3159 | return "close"; | |
3160 | } | |
3161 | ||
3162 | return "unknown"; | |
3163 | } | |
3164 | ||
f86dcef8 LG |
3165 | static ssize_t dpcm_show_state(struct snd_soc_pcm_runtime *fe, |
3166 | int stream, char *buf, size_t size) | |
3167 | { | |
3168 | struct snd_pcm_hw_params *params = &fe->dpcm[stream].hw_params; | |
3169 | struct snd_soc_dpcm *dpcm; | |
3170 | ssize_t offset = 0; | |
a9764869 | 3171 | unsigned long flags; |
f86dcef8 LG |
3172 | |
3173 | /* FE state */ | |
6c89ffea | 3174 | offset += scnprintf(buf + offset, size - offset, |
f86dcef8 LG |
3175 | "[%s - %s]\n", fe->dai_link->name, |
3176 | stream ? "Capture" : "Playback"); | |
3177 | ||
6c89ffea | 3178 | offset += scnprintf(buf + offset, size - offset, "State: %s\n", |
f86dcef8 LG |
3179 | dpcm_state_string(fe->dpcm[stream].state)); |
3180 | ||
3181 | if ((fe->dpcm[stream].state >= SND_SOC_DPCM_STATE_HW_PARAMS) && | |
3182 | (fe->dpcm[stream].state <= SND_SOC_DPCM_STATE_STOP)) | |
6c89ffea | 3183 | offset += scnprintf(buf + offset, size - offset, |
f86dcef8 LG |
3184 | "Hardware Params: " |
3185 | "Format = %s, Channels = %d, Rate = %d\n", | |
3186 | snd_pcm_format_name(params_format(params)), | |
3187 | params_channels(params), | |
3188 | params_rate(params)); | |
3189 | ||
3190 | /* BEs state */ | |
6c89ffea | 3191 | offset += scnprintf(buf + offset, size - offset, "Backends:\n"); |
f86dcef8 LG |
3192 | |
3193 | if (list_empty(&fe->dpcm[stream].be_clients)) { | |
6c89ffea | 3194 | offset += scnprintf(buf + offset, size - offset, |
f86dcef8 LG |
3195 | " No active DSP links\n"); |
3196 | goto out; | |
3197 | } | |
3198 | ||
a9764869 | 3199 | spin_lock_irqsave(&fe->card->dpcm_lock, flags); |
8d6258a4 | 3200 | for_each_dpcm_be(fe, stream, dpcm) { |
f86dcef8 LG |
3201 | struct snd_soc_pcm_runtime *be = dpcm->be; |
3202 | params = &dpcm->hw_params; | |
3203 | ||
6c89ffea | 3204 | offset += scnprintf(buf + offset, size - offset, |
f86dcef8 LG |
3205 | "- %s\n", be->dai_link->name); |
3206 | ||
6c89ffea | 3207 | offset += scnprintf(buf + offset, size - offset, |
f86dcef8 LG |
3208 | " State: %s\n", |
3209 | dpcm_state_string(be->dpcm[stream].state)); | |
3210 | ||
3211 | if ((be->dpcm[stream].state >= SND_SOC_DPCM_STATE_HW_PARAMS) && | |
3212 | (be->dpcm[stream].state <= SND_SOC_DPCM_STATE_STOP)) | |
6c89ffea | 3213 | offset += scnprintf(buf + offset, size - offset, |
f86dcef8 LG |
3214 | " Hardware Params: " |
3215 | "Format = %s, Channels = %d, Rate = %d\n", | |
3216 | snd_pcm_format_name(params_format(params)), | |
3217 | params_channels(params), | |
3218 | params_rate(params)); | |
3219 | } | |
a9764869 | 3220 | spin_unlock_irqrestore(&fe->card->dpcm_lock, flags); |
f86dcef8 LG |
3221 | out: |
3222 | return offset; | |
3223 | } | |
3224 | ||
3225 | static ssize_t dpcm_state_read_file(struct file *file, char __user *user_buf, | |
3226 | size_t count, loff_t *ppos) | |
3227 | { | |
3228 | struct snd_soc_pcm_runtime *fe = file->private_data; | |
3229 | ssize_t out_count = PAGE_SIZE, offset = 0, ret = 0; | |
3230 | char *buf; | |
3231 | ||
3232 | buf = kmalloc(out_count, GFP_KERNEL); | |
3233 | if (!buf) | |
3234 | return -ENOMEM; | |
3235 | ||
467fece8 | 3236 | if (snd_soc_dai_stream_valid(fe->cpu_dai, SNDRV_PCM_STREAM_PLAYBACK)) |
f86dcef8 LG |
3237 | offset += dpcm_show_state(fe, SNDRV_PCM_STREAM_PLAYBACK, |
3238 | buf + offset, out_count - offset); | |
3239 | ||
467fece8 | 3240 | if (snd_soc_dai_stream_valid(fe->cpu_dai, SNDRV_PCM_STREAM_CAPTURE)) |
f86dcef8 LG |
3241 | offset += dpcm_show_state(fe, SNDRV_PCM_STREAM_CAPTURE, |
3242 | buf + offset, out_count - offset); | |
3243 | ||
f57b8488 | 3244 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, offset); |
f86dcef8 | 3245 | |
f57b8488 LG |
3246 | kfree(buf); |
3247 | return ret; | |
f86dcef8 LG |
3248 | } |
3249 | ||
3250 | static const struct file_operations dpcm_state_fops = { | |
f57b8488 | 3251 | .open = simple_open, |
f86dcef8 LG |
3252 | .read = dpcm_state_read_file, |
3253 | .llseek = default_llseek, | |
3254 | }; | |
3255 | ||
2e55b90a | 3256 | void soc_dpcm_debugfs_add(struct snd_soc_pcm_runtime *rtd) |
f86dcef8 | 3257 | { |
b3bba9a1 | 3258 | if (!rtd->dai_link) |
2e55b90a | 3259 | return; |
b3bba9a1 | 3260 | |
596becd3 KM |
3261 | if (!rtd->dai_link->dynamic) |
3262 | return; | |
3263 | ||
6553bf06 LPC |
3264 | if (!rtd->card->debugfs_card_root) |
3265 | return; | |
b3bba9a1 | 3266 | |
f86dcef8 LG |
3267 | rtd->debugfs_dpcm_root = debugfs_create_dir(rtd->dai_link->name, |
3268 | rtd->card->debugfs_card_root); | |
f86dcef8 | 3269 | |
f1e3f409 FE |
3270 | debugfs_create_file("state", 0444, rtd->debugfs_dpcm_root, |
3271 | rtd, &dpcm_state_fops); | |
f86dcef8 LG |
3272 | } |
3273 | #endif |