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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> |
52034add | 18 | #include <linux/module.h> |
ddee627c LG |
19 | #include <linux/slab.h> |
20 | #include <linux/workqueue.h> | |
01d7584c | 21 | #include <linux/export.h> |
f86dcef8 | 22 | #include <linux/debugfs.h> |
ddee627c LG |
23 | #include <sound/core.h> |
24 | #include <sound/pcm.h> | |
25 | #include <sound/pcm_params.h> | |
26 | #include <sound/soc.h> | |
01d7584c | 27 | #include <sound/soc-dpcm.h> |
ddee627c LG |
28 | #include <sound/initval.h> |
29 | ||
01d7584c LG |
30 | #define DPCM_MAX_BE_USERS 8 |
31 | ||
cde79035 RW |
32 | /* |
33 | * snd_soc_dai_stream_valid() - check if a DAI supports the given stream | |
34 | * | |
35 | * Returns true if the DAI supports the indicated stream type. | |
36 | */ | |
37 | static bool snd_soc_dai_stream_valid(struct snd_soc_dai *dai, int stream) | |
38 | { | |
39 | struct snd_soc_pcm_stream *codec_stream; | |
40 | ||
41 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) | |
42 | codec_stream = &dai->driver->playback; | |
43 | else | |
44 | codec_stream = &dai->driver->capture; | |
45 | ||
6a7c59c6 JB |
46 | /* If the codec specifies any channels at all, it supports the stream */ |
47 | return codec_stream->channels_min; | |
cde79035 RW |
48 | } |
49 | ||
24894b76 LPC |
50 | /** |
51 | * snd_soc_runtime_activate() - Increment active count for PCM runtime components | |
52 | * @rtd: ASoC PCM runtime that is activated | |
53 | * @stream: Direction of the PCM stream | |
54 | * | |
55 | * Increments the active count for all the DAIs and components attached to a PCM | |
56 | * runtime. Should typically be called when a stream is opened. | |
57 | * | |
58 | * Must be called with the rtd->pcm_mutex being held | |
59 | */ | |
60 | void snd_soc_runtime_activate(struct snd_soc_pcm_runtime *rtd, int stream) | |
61 | { | |
62 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
0b7990e3 | 63 | struct snd_soc_dai *codec_dai; |
2e5894d7 | 64 | int i; |
24894b76 LPC |
65 | |
66 | lockdep_assert_held(&rtd->pcm_mutex); | |
67 | ||
68 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) { | |
69 | cpu_dai->playback_active++; | |
0b7990e3 KM |
70 | for_each_rtd_codec_dai(rtd, i, codec_dai) |
71 | codec_dai->playback_active++; | |
24894b76 LPC |
72 | } else { |
73 | cpu_dai->capture_active++; | |
0b7990e3 KM |
74 | for_each_rtd_codec_dai(rtd, i, codec_dai) |
75 | codec_dai->capture_active++; | |
24894b76 LPC |
76 | } |
77 | ||
78 | cpu_dai->active++; | |
cdde4ccb | 79 | cpu_dai->component->active++; |
0b7990e3 KM |
80 | for_each_rtd_codec_dai(rtd, i, codec_dai) { |
81 | codec_dai->active++; | |
82 | codec_dai->component->active++; | |
2e5894d7 | 83 | } |
24894b76 LPC |
84 | } |
85 | ||
86 | /** | |
87 | * snd_soc_runtime_deactivate() - Decrement active count for PCM runtime components | |
88 | * @rtd: ASoC PCM runtime that is deactivated | |
89 | * @stream: Direction of the PCM stream | |
90 | * | |
91 | * Decrements the active count for all the DAIs and components attached to a PCM | |
92 | * runtime. Should typically be called when a stream is closed. | |
93 | * | |
94 | * Must be called with the rtd->pcm_mutex being held | |
95 | */ | |
96 | void snd_soc_runtime_deactivate(struct snd_soc_pcm_runtime *rtd, int stream) | |
97 | { | |
98 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
0b7990e3 | 99 | struct snd_soc_dai *codec_dai; |
2e5894d7 | 100 | int i; |
24894b76 LPC |
101 | |
102 | lockdep_assert_held(&rtd->pcm_mutex); | |
103 | ||
104 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) { | |
105 | cpu_dai->playback_active--; | |
0b7990e3 KM |
106 | for_each_rtd_codec_dai(rtd, i, codec_dai) |
107 | codec_dai->playback_active--; | |
24894b76 LPC |
108 | } else { |
109 | cpu_dai->capture_active--; | |
0b7990e3 KM |
110 | for_each_rtd_codec_dai(rtd, i, codec_dai) |
111 | codec_dai->capture_active--; | |
24894b76 LPC |
112 | } |
113 | ||
114 | cpu_dai->active--; | |
cdde4ccb | 115 | cpu_dai->component->active--; |
0b7990e3 KM |
116 | for_each_rtd_codec_dai(rtd, i, codec_dai) { |
117 | codec_dai->component->active--; | |
118 | codec_dai->active--; | |
2e5894d7 | 119 | } |
24894b76 LPC |
120 | } |
121 | ||
208a1589 LPC |
122 | /** |
123 | * snd_soc_runtime_ignore_pmdown_time() - Check whether to ignore the power down delay | |
124 | * @rtd: The ASoC PCM runtime that should be checked. | |
125 | * | |
126 | * This function checks whether the power down delay should be ignored for a | |
127 | * specific PCM runtime. Returns true if the delay is 0, if it the DAI link has | |
128 | * been configured to ignore the delay, or if none of the components benefits | |
129 | * from having the delay. | |
130 | */ | |
131 | bool snd_soc_runtime_ignore_pmdown_time(struct snd_soc_pcm_runtime *rtd) | |
132 | { | |
fbb16563 KM |
133 | struct snd_soc_rtdcom_list *rtdcom; |
134 | struct snd_soc_component *component; | |
2e5894d7 BC |
135 | bool ignore = true; |
136 | ||
208a1589 LPC |
137 | if (!rtd->pmdown_time || rtd->dai_link->ignore_pmdown_time) |
138 | return true; | |
139 | ||
fbb16563 KM |
140 | for_each_rtdcom(rtd, rtdcom) { |
141 | component = rtdcom->component; | |
142 | ||
72c38184 | 143 | ignore &= !component->driver->use_pmdown_time; |
fbb16563 KM |
144 | } |
145 | ||
fbb16563 | 146 | return ignore; |
208a1589 LPC |
147 | } |
148 | ||
90996f43 LPC |
149 | /** |
150 | * snd_soc_set_runtime_hwparams - set the runtime hardware parameters | |
151 | * @substream: the pcm substream | |
152 | * @hw: the hardware parameters | |
153 | * | |
154 | * Sets the substream runtime hardware parameters. | |
155 | */ | |
156 | int snd_soc_set_runtime_hwparams(struct snd_pcm_substream *substream, | |
157 | const struct snd_pcm_hardware *hw) | |
158 | { | |
159 | struct snd_pcm_runtime *runtime = substream->runtime; | |
160 | runtime->hw.info = hw->info; | |
161 | runtime->hw.formats = hw->formats; | |
162 | runtime->hw.period_bytes_min = hw->period_bytes_min; | |
163 | runtime->hw.period_bytes_max = hw->period_bytes_max; | |
164 | runtime->hw.periods_min = hw->periods_min; | |
165 | runtime->hw.periods_max = hw->periods_max; | |
166 | runtime->hw.buffer_bytes_max = hw->buffer_bytes_max; | |
167 | runtime->hw.fifo_size = hw->fifo_size; | |
168 | return 0; | |
169 | } | |
170 | EXPORT_SYMBOL_GPL(snd_soc_set_runtime_hwparams); | |
171 | ||
01d7584c | 172 | /* DPCM stream event, send event to FE and all active BEs. */ |
23607025 | 173 | int dpcm_dapm_stream_event(struct snd_soc_pcm_runtime *fe, int dir, |
01d7584c LG |
174 | int event) |
175 | { | |
176 | struct snd_soc_dpcm *dpcm; | |
177 | ||
8d6258a4 | 178 | for_each_dpcm_be(fe, dir, dpcm) { |
01d7584c LG |
179 | |
180 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
181 | ||
103d84a3 | 182 | dev_dbg(be->dev, "ASoC: BE %s event %d dir %d\n", |
01d7584c LG |
183 | be->dai_link->name, event, dir); |
184 | ||
b1cd2e34 BG |
185 | if ((event == SND_SOC_DAPM_STREAM_STOP) && |
186 | (be->dpcm[dir].users >= 1)) | |
187 | continue; | |
188 | ||
01d7584c LG |
189 | snd_soc_dapm_stream_event(be, dir, event); |
190 | } | |
191 | ||
192 | snd_soc_dapm_stream_event(fe, dir, event); | |
193 | ||
194 | return 0; | |
195 | } | |
196 | ||
17841020 DA |
197 | static int soc_pcm_apply_symmetry(struct snd_pcm_substream *substream, |
198 | struct snd_soc_dai *soc_dai) | |
ddee627c LG |
199 | { |
200 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
ddee627c LG |
201 | int ret; |
202 | ||
3635bf09 NC |
203 | if (soc_dai->rate && (soc_dai->driver->symmetric_rates || |
204 | rtd->dai_link->symmetric_rates)) { | |
205 | dev_dbg(soc_dai->dev, "ASoC: Symmetry forces %dHz rate\n", | |
206 | soc_dai->rate); | |
207 | ||
4dcdd43b | 208 | ret = snd_pcm_hw_constraint_single(substream->runtime, |
3635bf09 | 209 | SNDRV_PCM_HW_PARAM_RATE, |
4dcdd43b | 210 | soc_dai->rate); |
3635bf09 NC |
211 | if (ret < 0) { |
212 | dev_err(soc_dai->dev, | |
213 | "ASoC: Unable to apply rate constraint: %d\n", | |
214 | ret); | |
215 | return ret; | |
216 | } | |
217 | } | |
ddee627c | 218 | |
3635bf09 NC |
219 | if (soc_dai->channels && (soc_dai->driver->symmetric_channels || |
220 | rtd->dai_link->symmetric_channels)) { | |
221 | dev_dbg(soc_dai->dev, "ASoC: Symmetry forces %d channel(s)\n", | |
222 | soc_dai->channels); | |
ddee627c | 223 | |
4dcdd43b | 224 | ret = snd_pcm_hw_constraint_single(substream->runtime, |
3635bf09 | 225 | SNDRV_PCM_HW_PARAM_CHANNELS, |
3635bf09 NC |
226 | soc_dai->channels); |
227 | if (ret < 0) { | |
228 | dev_err(soc_dai->dev, | |
229 | "ASoC: Unable to apply channel symmetry constraint: %d\n", | |
230 | ret); | |
231 | return ret; | |
232 | } | |
ddee627c LG |
233 | } |
234 | ||
3635bf09 NC |
235 | if (soc_dai->sample_bits && (soc_dai->driver->symmetric_samplebits || |
236 | rtd->dai_link->symmetric_samplebits)) { | |
237 | dev_dbg(soc_dai->dev, "ASoC: Symmetry forces %d sample bits\n", | |
238 | soc_dai->sample_bits); | |
ddee627c | 239 | |
4dcdd43b | 240 | ret = snd_pcm_hw_constraint_single(substream->runtime, |
3635bf09 | 241 | SNDRV_PCM_HW_PARAM_SAMPLE_BITS, |
3635bf09 NC |
242 | soc_dai->sample_bits); |
243 | if (ret < 0) { | |
244 | dev_err(soc_dai->dev, | |
245 | "ASoC: Unable to apply sample bits symmetry constraint: %d\n", | |
246 | ret); | |
247 | return ret; | |
248 | } | |
ddee627c LG |
249 | } |
250 | ||
251 | return 0; | |
252 | } | |
253 | ||
3635bf09 NC |
254 | static int soc_pcm_params_symmetry(struct snd_pcm_substream *substream, |
255 | struct snd_pcm_hw_params *params) | |
256 | { | |
257 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
258 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
0b7990e3 | 259 | struct snd_soc_dai *codec_dai; |
2e5894d7 | 260 | unsigned int rate, channels, sample_bits, symmetry, i; |
3635bf09 NC |
261 | |
262 | rate = params_rate(params); | |
263 | channels = params_channels(params); | |
264 | sample_bits = snd_pcm_format_physical_width(params_format(params)); | |
265 | ||
266 | /* reject unmatched parameters when applying symmetry */ | |
267 | symmetry = cpu_dai->driver->symmetric_rates || | |
3635bf09 | 268 | rtd->dai_link->symmetric_rates; |
2e5894d7 | 269 | |
0b7990e3 KM |
270 | for_each_rtd_codec_dai(rtd, i, codec_dai) |
271 | symmetry |= codec_dai->driver->symmetric_rates; | |
2e5894d7 | 272 | |
3635bf09 NC |
273 | if (symmetry && cpu_dai->rate && cpu_dai->rate != rate) { |
274 | dev_err(rtd->dev, "ASoC: unmatched rate symmetry: %d - %d\n", | |
275 | cpu_dai->rate, rate); | |
276 | return -EINVAL; | |
ddee627c LG |
277 | } |
278 | ||
3635bf09 | 279 | symmetry = cpu_dai->driver->symmetric_channels || |
3635bf09 | 280 | rtd->dai_link->symmetric_channels; |
2e5894d7 | 281 | |
0b7990e3 KM |
282 | for_each_rtd_codec_dai(rtd, i, codec_dai) |
283 | symmetry |= codec_dai->driver->symmetric_channels; | |
2e5894d7 | 284 | |
3635bf09 NC |
285 | if (symmetry && cpu_dai->channels && cpu_dai->channels != channels) { |
286 | dev_err(rtd->dev, "ASoC: unmatched channel symmetry: %d - %d\n", | |
287 | cpu_dai->channels, channels); | |
288 | return -EINVAL; | |
289 | } | |
ddee627c | 290 | |
3635bf09 | 291 | symmetry = cpu_dai->driver->symmetric_samplebits || |
3635bf09 | 292 | rtd->dai_link->symmetric_samplebits; |
2e5894d7 | 293 | |
0b7990e3 KM |
294 | for_each_rtd_codec_dai(rtd, i, codec_dai) |
295 | symmetry |= codec_dai->driver->symmetric_samplebits; | |
2e5894d7 | 296 | |
3635bf09 NC |
297 | if (symmetry && cpu_dai->sample_bits && cpu_dai->sample_bits != sample_bits) { |
298 | dev_err(rtd->dev, "ASoC: unmatched sample bits symmetry: %d - %d\n", | |
299 | cpu_dai->sample_bits, sample_bits); | |
300 | return -EINVAL; | |
ddee627c LG |
301 | } |
302 | ||
303 | return 0; | |
304 | } | |
305 | ||
62e5f676 LPC |
306 | static bool soc_pcm_has_symmetry(struct snd_pcm_substream *substream) |
307 | { | |
308 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
309 | struct snd_soc_dai_driver *cpu_driver = rtd->cpu_dai->driver; | |
62e5f676 | 310 | struct snd_soc_dai_link *link = rtd->dai_link; |
0b7990e3 | 311 | struct snd_soc_dai *codec_dai; |
2e5894d7 | 312 | unsigned int symmetry, i; |
62e5f676 | 313 | |
2e5894d7 BC |
314 | symmetry = cpu_driver->symmetric_rates || link->symmetric_rates || |
315 | cpu_driver->symmetric_channels || link->symmetric_channels || | |
316 | cpu_driver->symmetric_samplebits || link->symmetric_samplebits; | |
62e5f676 | 317 | |
0b7990e3 | 318 | for_each_rtd_codec_dai(rtd, i, codec_dai) |
2e5894d7 | 319 | symmetry = symmetry || |
0b7990e3 KM |
320 | codec_dai->driver->symmetric_rates || |
321 | codec_dai->driver->symmetric_channels || | |
322 | codec_dai->driver->symmetric_samplebits; | |
2e5894d7 BC |
323 | |
324 | return symmetry; | |
62e5f676 LPC |
325 | } |
326 | ||
2e5894d7 | 327 | static void soc_pcm_set_msb(struct snd_pcm_substream *substream, int bits) |
58ba9b25 | 328 | { |
2e5894d7 | 329 | struct snd_soc_pcm_runtime *rtd = substream->private_data; |
c6068d3a | 330 | int ret; |
58ba9b25 MB |
331 | |
332 | if (!bits) | |
333 | return; | |
334 | ||
0e2a3751 LPC |
335 | ret = snd_pcm_hw_constraint_msbits(substream->runtime, 0, 0, bits); |
336 | if (ret != 0) | |
337 | dev_warn(rtd->dev, "ASoC: Failed to set MSB %d: %d\n", | |
338 | bits, ret); | |
58ba9b25 MB |
339 | } |
340 | ||
c8dd1fec BC |
341 | static void soc_pcm_apply_msb(struct snd_pcm_substream *substream) |
342 | { | |
343 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
344 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
2e5894d7 BC |
345 | struct snd_soc_dai *codec_dai; |
346 | int i; | |
c8dd1fec BC |
347 | unsigned int bits = 0, cpu_bits; |
348 | ||
349 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { | |
0b7990e3 | 350 | for_each_rtd_codec_dai(rtd, i, codec_dai) { |
2e5894d7 BC |
351 | if (codec_dai->driver->playback.sig_bits == 0) { |
352 | bits = 0; | |
353 | break; | |
354 | } | |
355 | bits = max(codec_dai->driver->playback.sig_bits, bits); | |
356 | } | |
c8dd1fec BC |
357 | cpu_bits = cpu_dai->driver->playback.sig_bits; |
358 | } else { | |
0b7990e3 | 359 | for_each_rtd_codec_dai(rtd, i, codec_dai) { |
5e63dfcc | 360 | if (codec_dai->driver->capture.sig_bits == 0) { |
2e5894d7 BC |
361 | bits = 0; |
362 | break; | |
363 | } | |
364 | bits = max(codec_dai->driver->capture.sig_bits, bits); | |
365 | } | |
c8dd1fec BC |
366 | cpu_bits = cpu_dai->driver->capture.sig_bits; |
367 | } | |
368 | ||
2e5894d7 BC |
369 | soc_pcm_set_msb(substream, bits); |
370 | soc_pcm_set_msb(substream, cpu_bits); | |
c8dd1fec BC |
371 | } |
372 | ||
2e5894d7 | 373 | static void soc_pcm_init_runtime_hw(struct snd_pcm_substream *substream) |
bd477c31 | 374 | { |
2e5894d7 | 375 | struct snd_pcm_runtime *runtime = substream->runtime; |
78e45c99 | 376 | struct snd_pcm_hardware *hw = &runtime->hw; |
2e5894d7 | 377 | struct snd_soc_pcm_runtime *rtd = substream->private_data; |
0b7990e3 | 378 | struct snd_soc_dai *codec_dai; |
2e5894d7 BC |
379 | struct snd_soc_dai_driver *cpu_dai_drv = rtd->cpu_dai->driver; |
380 | struct snd_soc_dai_driver *codec_dai_drv; | |
381 | struct snd_soc_pcm_stream *codec_stream; | |
382 | struct snd_soc_pcm_stream *cpu_stream; | |
383 | unsigned int chan_min = 0, chan_max = UINT_MAX; | |
384 | unsigned int rate_min = 0, rate_max = UINT_MAX; | |
385 | unsigned int rates = UINT_MAX; | |
386 | u64 formats = ULLONG_MAX; | |
387 | int i; | |
78e45c99 | 388 | |
2e5894d7 BC |
389 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) |
390 | cpu_stream = &cpu_dai_drv->playback; | |
16d7ea91 | 391 | else |
2e5894d7 | 392 | cpu_stream = &cpu_dai_drv->capture; |
78e45c99 | 393 | |
2e5894d7 | 394 | /* first calculate min/max only for CODECs in the DAI link */ |
0b7990e3 | 395 | for_each_rtd_codec_dai(rtd, i, codec_dai) { |
cde79035 RW |
396 | |
397 | /* | |
398 | * Skip CODECs which don't support the current stream type. | |
399 | * Otherwise, since the rate, channel, and format values will | |
400 | * zero in that case, we would have no usable settings left, | |
401 | * causing the resulting setup to fail. | |
402 | * At least one CODEC should match, otherwise we should have | |
403 | * bailed out on a higher level, since there would be no | |
404 | * CODEC to support the transfer direction in that case. | |
405 | */ | |
0b7990e3 | 406 | if (!snd_soc_dai_stream_valid(codec_dai, |
cde79035 RW |
407 | substream->stream)) |
408 | continue; | |
409 | ||
0b7990e3 | 410 | codec_dai_drv = codec_dai->driver; |
2e5894d7 BC |
411 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) |
412 | codec_stream = &codec_dai_drv->playback; | |
413 | else | |
414 | codec_stream = &codec_dai_drv->capture; | |
415 | chan_min = max(chan_min, codec_stream->channels_min); | |
416 | chan_max = min(chan_max, codec_stream->channels_max); | |
417 | rate_min = max(rate_min, codec_stream->rate_min); | |
418 | rate_max = min_not_zero(rate_max, codec_stream->rate_max); | |
419 | formats &= codec_stream->formats; | |
420 | rates = snd_pcm_rate_mask_intersect(codec_stream->rates, rates); | |
421 | } | |
422 | ||
423 | /* | |
424 | * chan min/max cannot be enforced if there are multiple CODEC DAIs | |
425 | * connected to a single CPU DAI, use CPU DAI's directly and let | |
426 | * channel allocation be fixed up later | |
427 | */ | |
428 | if (rtd->num_codecs > 1) { | |
429 | chan_min = cpu_stream->channels_min; | |
430 | chan_max = cpu_stream->channels_max; | |
431 | } | |
432 | ||
433 | hw->channels_min = max(chan_min, cpu_stream->channels_min); | |
434 | hw->channels_max = min(chan_max, cpu_stream->channels_max); | |
435 | if (hw->formats) | |
436 | hw->formats &= formats & cpu_stream->formats; | |
437 | else | |
438 | hw->formats = formats & cpu_stream->formats; | |
439 | hw->rates = snd_pcm_rate_mask_intersect(rates, cpu_stream->rates); | |
78e45c99 LPC |
440 | |
441 | snd_pcm_limit_hw_rates(runtime); | |
442 | ||
443 | hw->rate_min = max(hw->rate_min, cpu_stream->rate_min); | |
2e5894d7 | 444 | hw->rate_min = max(hw->rate_min, rate_min); |
78e45c99 | 445 | hw->rate_max = min_not_zero(hw->rate_max, cpu_stream->rate_max); |
2e5894d7 | 446 | hw->rate_max = min_not_zero(hw->rate_max, rate_max); |
bd477c31 LPC |
447 | } |
448 | ||
e7ecfdb7 KM |
449 | static int soc_pcm_components_open(struct snd_pcm_substream *substream, |
450 | struct snd_soc_component **last) | |
451 | { | |
452 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
453 | struct snd_soc_rtdcom_list *rtdcom; | |
454 | struct snd_soc_component *component; | |
455 | int ret = 0; | |
456 | ||
457 | for_each_rtdcom(rtd, rtdcom) { | |
458 | component = rtdcom->component; | |
459 | *last = component; | |
460 | ||
e7ecfdb7 KM |
461 | if (component->driver->module_get_upon_open && |
462 | !try_module_get(component->dev->driver->owner)) { | |
463 | dev_err(component->dev, | |
464 | "ASoC: can't get module %s\n", | |
465 | component->name); | |
466 | return -ENODEV; | |
467 | } | |
468 | ||
428306c3 KM |
469 | if (!component->driver->ops || |
470 | !component->driver->ops->open) | |
471 | continue; | |
472 | ||
e7ecfdb7 KM |
473 | ret = component->driver->ops->open(substream); |
474 | if (ret < 0) { | |
475 | dev_err(component->dev, | |
476 | "ASoC: can't open component %s: %d\n", | |
477 | component->name, ret); | |
478 | return ret; | |
479 | } | |
480 | } | |
481 | *last = NULL; | |
482 | return 0; | |
483 | } | |
484 | ||
244e2936 CK |
485 | static int soc_pcm_components_close(struct snd_pcm_substream *substream, |
486 | struct snd_soc_component *last) | |
487 | { | |
488 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
489 | struct snd_soc_rtdcom_list *rtdcom; | |
490 | struct snd_soc_component *component; | |
491 | ||
492 | for_each_rtdcom(rtd, rtdcom) { | |
493 | component = rtdcom->component; | |
494 | ||
495 | if (component == last) | |
496 | break; | |
497 | ||
428306c3 KM |
498 | if (component->driver->ops && |
499 | component->driver->ops->close) | |
500 | component->driver->ops->close(substream); | |
52034add RS |
501 | |
502 | if (component->driver->module_get_upon_open) | |
503 | module_put(component->dev->driver->owner); | |
244e2936 CK |
504 | } |
505 | ||
506 | return 0; | |
507 | } | |
508 | ||
ddee627c LG |
509 | /* |
510 | * Called by ALSA when a PCM substream is opened, the runtime->hw record is | |
511 | * then initialized and any private data can be allocated. This also calls | |
ef050bec | 512 | * startup for the cpu DAI, component, machine and codec DAI. |
ddee627c LG |
513 | */ |
514 | static int soc_pcm_open(struct snd_pcm_substream *substream) | |
515 | { | |
516 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
517 | struct snd_pcm_runtime *runtime = substream->runtime; | |
90be711e KM |
518 | struct snd_soc_component *component; |
519 | struct snd_soc_rtdcom_list *rtdcom; | |
ddee627c | 520 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
2e5894d7 BC |
521 | struct snd_soc_dai *codec_dai; |
522 | const char *codec_dai_name = "multicodec"; | |
244e2936 | 523 | int i, ret = 0; |
ddee627c | 524 | |
988e8cc4 | 525 | pinctrl_pm_select_default_state(cpu_dai->dev); |
0b7990e3 KM |
526 | for_each_rtd_codec_dai(rtd, i, codec_dai) |
527 | pinctrl_pm_select_default_state(codec_dai->dev); | |
90be711e KM |
528 | |
529 | for_each_rtdcom(rtd, rtdcom) { | |
530 | component = rtdcom->component; | |
531 | ||
532 | pm_runtime_get_sync(component->dev); | |
533 | } | |
d6652ef8 | 534 | |
b8c0dab9 | 535 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); |
ddee627c LG |
536 | |
537 | /* startup the audio subsystem */ | |
9900a422 | 538 | if (cpu_dai->driver->ops->startup) { |
ddee627c LG |
539 | ret = cpu_dai->driver->ops->startup(substream, cpu_dai); |
540 | if (ret < 0) { | |
103d84a3 LG |
541 | dev_err(cpu_dai->dev, "ASoC: can't open interface" |
542 | " %s: %d\n", cpu_dai->name, ret); | |
ddee627c LG |
543 | goto out; |
544 | } | |
545 | } | |
546 | ||
e7ecfdb7 KM |
547 | ret = soc_pcm_components_open(substream, &component); |
548 | if (ret < 0) | |
549 | goto component_err; | |
b8135864 | 550 | |
0b7990e3 | 551 | for_each_rtd_codec_dai(rtd, i, codec_dai) { |
9900a422 | 552 | if (codec_dai->driver->ops->startup) { |
2e5894d7 BC |
553 | ret = codec_dai->driver->ops->startup(substream, |
554 | codec_dai); | |
555 | if (ret < 0) { | |
556 | dev_err(codec_dai->dev, | |
557 | "ASoC: can't open codec %s: %d\n", | |
558 | codec_dai->name, ret); | |
559 | goto codec_dai_err; | |
560 | } | |
ddee627c | 561 | } |
2e5894d7 BC |
562 | |
563 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) | |
564 | codec_dai->tx_mask = 0; | |
565 | else | |
566 | codec_dai->rx_mask = 0; | |
ddee627c LG |
567 | } |
568 | ||
75ab9eb6 | 569 | if (rtd->dai_link->ops->startup) { |
ddee627c LG |
570 | ret = rtd->dai_link->ops->startup(substream); |
571 | if (ret < 0) { | |
103d84a3 | 572 | pr_err("ASoC: %s startup failed: %d\n", |
25bfe662 | 573 | rtd->dai_link->name, ret); |
ddee627c LG |
574 | goto machine_err; |
575 | } | |
576 | } | |
577 | ||
01d7584c LG |
578 | /* Dynamic PCM DAI links compat checks use dynamic capabilities */ |
579 | if (rtd->dai_link->dynamic || rtd->dai_link->no_pcm) | |
580 | goto dynamic; | |
581 | ||
ddee627c | 582 | /* Check that the codec and cpu DAIs are compatible */ |
2e5894d7 BC |
583 | soc_pcm_init_runtime_hw(substream); |
584 | ||
585 | if (rtd->num_codecs == 1) | |
586 | codec_dai_name = rtd->codec_dai->name; | |
ddee627c | 587 | |
62e5f676 LPC |
588 | if (soc_pcm_has_symmetry(substream)) |
589 | runtime->hw.info |= SNDRV_PCM_INFO_JOINT_DUPLEX; | |
590 | ||
ddee627c | 591 | ret = -EINVAL; |
ddee627c | 592 | if (!runtime->hw.rates) { |
103d84a3 | 593 | printk(KERN_ERR "ASoC: %s <-> %s No matching rates\n", |
2e5894d7 | 594 | codec_dai_name, cpu_dai->name); |
ddee627c LG |
595 | goto config_err; |
596 | } | |
597 | if (!runtime->hw.formats) { | |
103d84a3 | 598 | printk(KERN_ERR "ASoC: %s <-> %s No matching formats\n", |
2e5894d7 | 599 | codec_dai_name, cpu_dai->name); |
ddee627c LG |
600 | goto config_err; |
601 | } | |
602 | if (!runtime->hw.channels_min || !runtime->hw.channels_max || | |
603 | runtime->hw.channels_min > runtime->hw.channels_max) { | |
103d84a3 | 604 | printk(KERN_ERR "ASoC: %s <-> %s No matching channels\n", |
2e5894d7 | 605 | codec_dai_name, cpu_dai->name); |
ddee627c LG |
606 | goto config_err; |
607 | } | |
608 | ||
c8dd1fec | 609 | soc_pcm_apply_msb(substream); |
58ba9b25 | 610 | |
ddee627c | 611 | /* Symmetry only applies if we've already got an active stream. */ |
17841020 DA |
612 | if (cpu_dai->active) { |
613 | ret = soc_pcm_apply_symmetry(substream, cpu_dai); | |
614 | if (ret != 0) | |
615 | goto config_err; | |
616 | } | |
617 | ||
0b7990e3 KM |
618 | for_each_rtd_codec_dai(rtd, i, codec_dai) { |
619 | if (codec_dai->active) { | |
620 | ret = soc_pcm_apply_symmetry(substream, codec_dai); | |
2e5894d7 BC |
621 | if (ret != 0) |
622 | goto config_err; | |
623 | } | |
ddee627c LG |
624 | } |
625 | ||
103d84a3 | 626 | pr_debug("ASoC: %s <-> %s info:\n", |
2e5894d7 | 627 | codec_dai_name, cpu_dai->name); |
103d84a3 LG |
628 | pr_debug("ASoC: rate mask 0x%x\n", runtime->hw.rates); |
629 | pr_debug("ASoC: min ch %d max ch %d\n", runtime->hw.channels_min, | |
ddee627c | 630 | runtime->hw.channels_max); |
103d84a3 | 631 | pr_debug("ASoC: min rate %d max rate %d\n", runtime->hw.rate_min, |
ddee627c LG |
632 | runtime->hw.rate_max); |
633 | ||
01d7584c | 634 | dynamic: |
24894b76 LPC |
635 | |
636 | snd_soc_runtime_activate(rtd, substream->stream); | |
637 | ||
b8c0dab9 | 638 | mutex_unlock(&rtd->pcm_mutex); |
ddee627c LG |
639 | return 0; |
640 | ||
641 | config_err: | |
75ab9eb6 | 642 | if (rtd->dai_link->ops->shutdown) |
ddee627c LG |
643 | rtd->dai_link->ops->shutdown(substream); |
644 | ||
645 | machine_err: | |
2e5894d7 | 646 | i = rtd->num_codecs; |
ddee627c LG |
647 | |
648 | codec_dai_err: | |
6d11b128 | 649 | for_each_rtd_codec_dai_rollback(rtd, i, codec_dai) { |
2e5894d7 BC |
650 | if (codec_dai->driver->ops->shutdown) |
651 | codec_dai->driver->ops->shutdown(substream, codec_dai); | |
652 | } | |
653 | ||
b8135864 | 654 | component_err: |
244e2936 | 655 | soc_pcm_components_close(substream, component); |
e7ecfdb7 | 656 | |
ddee627c LG |
657 | if (cpu_dai->driver->ops->shutdown) |
658 | cpu_dai->driver->ops->shutdown(substream, cpu_dai); | |
659 | out: | |
b8c0dab9 | 660 | mutex_unlock(&rtd->pcm_mutex); |
d6652ef8 | 661 | |
90be711e KM |
662 | for_each_rtdcom(rtd, rtdcom) { |
663 | component = rtdcom->component; | |
664 | ||
665 | pm_runtime_mark_last_busy(component->dev); | |
666 | pm_runtime_put_autosuspend(component->dev); | |
3f809783 SK |
667 | } |
668 | ||
0b7990e3 KM |
669 | for_each_rtd_codec_dai(rtd, i, codec_dai) { |
670 | if (!codec_dai->active) | |
671 | pinctrl_pm_select_sleep_state(codec_dai->dev); | |
2e5894d7 | 672 | } |
988e8cc4 NC |
673 | if (!cpu_dai->active) |
674 | pinctrl_pm_select_sleep_state(cpu_dai->dev); | |
d6652ef8 | 675 | |
ddee627c LG |
676 | return ret; |
677 | } | |
678 | ||
679 | /* | |
680 | * Power down the audio subsystem pmdown_time msecs after close is called. | |
681 | * This is to ensure there are no pops or clicks in between any music tracks | |
682 | * due to DAPM power cycling. | |
683 | */ | |
684 | static void close_delayed_work(struct work_struct *work) | |
685 | { | |
686 | struct snd_soc_pcm_runtime *rtd = | |
687 | container_of(work, struct snd_soc_pcm_runtime, delayed_work.work); | |
2e5894d7 | 688 | struct snd_soc_dai *codec_dai = rtd->codec_dais[0]; |
ddee627c | 689 | |
b8c0dab9 | 690 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); |
ddee627c | 691 | |
103d84a3 | 692 | dev_dbg(rtd->dev, "ASoC: pop wq checking: %s status: %s waiting: %s\n", |
ddee627c LG |
693 | codec_dai->driver->playback.stream_name, |
694 | codec_dai->playback_active ? "active" : "inactive", | |
9bffb1fb | 695 | rtd->pop_wait ? "yes" : "no"); |
ddee627c LG |
696 | |
697 | /* are we waiting on this codec DAI stream */ | |
9bffb1fb MLC |
698 | if (rtd->pop_wait == 1) { |
699 | rtd->pop_wait = 0; | |
7bd3a6f3 | 700 | snd_soc_dapm_stream_event(rtd, SNDRV_PCM_STREAM_PLAYBACK, |
d9b0951b | 701 | SND_SOC_DAPM_STREAM_STOP); |
ddee627c LG |
702 | } |
703 | ||
b8c0dab9 | 704 | mutex_unlock(&rtd->pcm_mutex); |
ddee627c LG |
705 | } |
706 | ||
707 | /* | |
708 | * Called by ALSA when a PCM substream is closed. Private data can be | |
ef050bec | 709 | * freed here. The cpu DAI, codec DAI, machine and components are also |
ddee627c LG |
710 | * shutdown. |
711 | */ | |
91d5e6b4 | 712 | static int soc_pcm_close(struct snd_pcm_substream *substream) |
ddee627c LG |
713 | { |
714 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
90be711e KM |
715 | struct snd_soc_component *component; |
716 | struct snd_soc_rtdcom_list *rtdcom; | |
ddee627c | 717 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
2e5894d7 BC |
718 | struct snd_soc_dai *codec_dai; |
719 | int i; | |
ddee627c | 720 | |
b8c0dab9 | 721 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); |
ddee627c | 722 | |
24894b76 | 723 | snd_soc_runtime_deactivate(rtd, substream->stream); |
ddee627c | 724 | |
17841020 DA |
725 | /* clear the corresponding DAIs rate when inactive */ |
726 | if (!cpu_dai->active) | |
727 | cpu_dai->rate = 0; | |
728 | ||
0b7990e3 | 729 | for_each_rtd_codec_dai(rtd, i, codec_dai) { |
2e5894d7 BC |
730 | if (!codec_dai->active) |
731 | codec_dai->rate = 0; | |
732 | } | |
25b76791 | 733 | |
ae11601b RB |
734 | snd_soc_dai_digital_mute(cpu_dai, 1, substream->stream); |
735 | ||
ddee627c LG |
736 | if (cpu_dai->driver->ops->shutdown) |
737 | cpu_dai->driver->ops->shutdown(substream, cpu_dai); | |
738 | ||
0b7990e3 | 739 | for_each_rtd_codec_dai(rtd, i, codec_dai) { |
2e5894d7 BC |
740 | if (codec_dai->driver->ops->shutdown) |
741 | codec_dai->driver->ops->shutdown(substream, codec_dai); | |
742 | } | |
ddee627c | 743 | |
75ab9eb6 | 744 | if (rtd->dai_link->ops->shutdown) |
ddee627c LG |
745 | rtd->dai_link->ops->shutdown(substream); |
746 | ||
244e2936 | 747 | soc_pcm_components_close(substream, NULL); |
b8135864 | 748 | |
ddee627c | 749 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { |
208a1589 | 750 | if (snd_soc_runtime_ignore_pmdown_time(rtd)) { |
1d69c5c5 PU |
751 | /* powered down playback stream now */ |
752 | snd_soc_dapm_stream_event(rtd, | |
7bd3a6f3 | 753 | SNDRV_PCM_STREAM_PLAYBACK, |
7bd3a6f3 | 754 | SND_SOC_DAPM_STREAM_STOP); |
1d69c5c5 PU |
755 | } else { |
756 | /* start delayed pop wq here for playback streams */ | |
9bffb1fb | 757 | rtd->pop_wait = 1; |
d4e1a73a MB |
758 | queue_delayed_work(system_power_efficient_wq, |
759 | &rtd->delayed_work, | |
760 | msecs_to_jiffies(rtd->pmdown_time)); | |
1d69c5c5 | 761 | } |
ddee627c LG |
762 | } else { |
763 | /* capture streams can be powered down now */ | |
7bd3a6f3 | 764 | snd_soc_dapm_stream_event(rtd, SNDRV_PCM_STREAM_CAPTURE, |
d9b0951b | 765 | SND_SOC_DAPM_STREAM_STOP); |
ddee627c LG |
766 | } |
767 | ||
b8c0dab9 | 768 | mutex_unlock(&rtd->pcm_mutex); |
d6652ef8 | 769 | |
90be711e KM |
770 | for_each_rtdcom(rtd, rtdcom) { |
771 | component = rtdcom->component; | |
3f809783 | 772 | |
90be711e KM |
773 | pm_runtime_mark_last_busy(component->dev); |
774 | pm_runtime_put_autosuspend(component->dev); | |
3f809783 SK |
775 | } |
776 | ||
0b7990e3 KM |
777 | for_each_rtd_codec_dai(rtd, i, codec_dai) { |
778 | if (!codec_dai->active) | |
779 | pinctrl_pm_select_sleep_state(codec_dai->dev); | |
2e5894d7 | 780 | } |
988e8cc4 NC |
781 | if (!cpu_dai->active) |
782 | pinctrl_pm_select_sleep_state(cpu_dai->dev); | |
d6652ef8 | 783 | |
ddee627c LG |
784 | return 0; |
785 | } | |
786 | ||
787 | /* | |
788 | * Called by ALSA when the PCM substream is prepared, can set format, sample | |
789 | * rate, etc. This function is non atomic and can be called multiple times, | |
790 | * it can refer to the runtime info. | |
791 | */ | |
792 | static int soc_pcm_prepare(struct snd_pcm_substream *substream) | |
793 | { | |
794 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
b8135864 KM |
795 | struct snd_soc_component *component; |
796 | struct snd_soc_rtdcom_list *rtdcom; | |
ddee627c | 797 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
2e5894d7 BC |
798 | struct snd_soc_dai *codec_dai; |
799 | int i, ret = 0; | |
ddee627c | 800 | |
b8c0dab9 | 801 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); |
ddee627c | 802 | |
75ab9eb6 | 803 | if (rtd->dai_link->ops->prepare) { |
ddee627c LG |
804 | ret = rtd->dai_link->ops->prepare(substream); |
805 | if (ret < 0) { | |
103d84a3 LG |
806 | dev_err(rtd->card->dev, "ASoC: machine prepare error:" |
807 | " %d\n", ret); | |
ddee627c LG |
808 | goto out; |
809 | } | |
810 | } | |
811 | ||
b8135864 KM |
812 | for_each_rtdcom(rtd, rtdcom) { |
813 | component = rtdcom->component; | |
814 | ||
b8135864 KM |
815 | if (!component->driver->ops || |
816 | !component->driver->ops->prepare) | |
817 | continue; | |
818 | ||
819 | ret = component->driver->ops->prepare(substream); | |
820 | if (ret < 0) { | |
821 | dev_err(component->dev, | |
822 | "ASoC: platform prepare error: %d\n", ret); | |
823 | goto out; | |
824 | } | |
825 | } | |
826 | ||
0b7990e3 | 827 | for_each_rtd_codec_dai(rtd, i, codec_dai) { |
9900a422 | 828 | if (codec_dai->driver->ops->prepare) { |
2e5894d7 BC |
829 | ret = codec_dai->driver->ops->prepare(substream, |
830 | codec_dai); | |
831 | if (ret < 0) { | |
832 | dev_err(codec_dai->dev, | |
90cc7f1c JN |
833 | "ASoC: codec DAI prepare error: %d\n", |
834 | ret); | |
2e5894d7 BC |
835 | goto out; |
836 | } | |
ddee627c LG |
837 | } |
838 | } | |
839 | ||
9900a422 | 840 | if (cpu_dai->driver->ops->prepare) { |
ddee627c LG |
841 | ret = cpu_dai->driver->ops->prepare(substream, cpu_dai); |
842 | if (ret < 0) { | |
90cc7f1c JN |
843 | dev_err(cpu_dai->dev, |
844 | "ASoC: cpu DAI prepare error: %d\n", ret); | |
ddee627c LG |
845 | goto out; |
846 | } | |
847 | } | |
848 | ||
849 | /* cancel any delayed stream shutdown that is pending */ | |
850 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK && | |
9bffb1fb MLC |
851 | rtd->pop_wait) { |
852 | rtd->pop_wait = 0; | |
ddee627c LG |
853 | cancel_delayed_work(&rtd->delayed_work); |
854 | } | |
855 | ||
d9b0951b LG |
856 | snd_soc_dapm_stream_event(rtd, substream->stream, |
857 | SND_SOC_DAPM_STREAM_START); | |
ddee627c | 858 | |
0b7990e3 KM |
859 | for_each_rtd_codec_dai(rtd, i, codec_dai) |
860 | snd_soc_dai_digital_mute(codec_dai, 0, | |
2e5894d7 | 861 | substream->stream); |
ae11601b | 862 | snd_soc_dai_digital_mute(cpu_dai, 0, substream->stream); |
ddee627c LG |
863 | |
864 | out: | |
b8c0dab9 | 865 | mutex_unlock(&rtd->pcm_mutex); |
ddee627c LG |
866 | return ret; |
867 | } | |
868 | ||
2e5894d7 BC |
869 | static void soc_pcm_codec_params_fixup(struct snd_pcm_hw_params *params, |
870 | unsigned int mask) | |
871 | { | |
872 | struct snd_interval *interval; | |
873 | int channels = hweight_long(mask); | |
874 | ||
875 | interval = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS); | |
876 | interval->min = channels; | |
877 | interval->max = channels; | |
878 | } | |
879 | ||
93e6958a BC |
880 | int soc_dai_hw_params(struct snd_pcm_substream *substream, |
881 | struct snd_pcm_hw_params *params, | |
882 | struct snd_soc_dai *dai) | |
883 | { | |
a655de80 | 884 | struct snd_soc_pcm_runtime *rtd = substream->private_data; |
93e6958a BC |
885 | int ret; |
886 | ||
a655de80 LG |
887 | /* perform any topology hw_params fixups before DAI */ |
888 | if (rtd->dai_link->be_hw_params_fixup) { | |
889 | ret = rtd->dai_link->be_hw_params_fixup(rtd, params); | |
890 | if (ret < 0) { | |
891 | dev_err(rtd->dev, | |
892 | "ASoC: hw_params topology fixup failed %d\n", | |
893 | ret); | |
894 | return ret; | |
895 | } | |
896 | } | |
897 | ||
9900a422 | 898 | if (dai->driver->ops->hw_params) { |
93e6958a BC |
899 | ret = dai->driver->ops->hw_params(substream, params, dai); |
900 | if (ret < 0) { | |
901 | dev_err(dai->dev, "ASoC: can't set %s hw params: %d\n", | |
902 | dai->name, ret); | |
903 | return ret; | |
904 | } | |
905 | } | |
906 | ||
907 | return 0; | |
908 | } | |
909 | ||
244e2936 CK |
910 | static int soc_pcm_components_hw_free(struct snd_pcm_substream *substream, |
911 | struct snd_soc_component *last) | |
912 | { | |
913 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
914 | struct snd_soc_rtdcom_list *rtdcom; | |
915 | struct snd_soc_component *component; | |
916 | ||
917 | for_each_rtdcom(rtd, rtdcom) { | |
918 | component = rtdcom->component; | |
919 | ||
920 | if (component == last) | |
921 | break; | |
922 | ||
923 | if (!component->driver->ops || | |
924 | !component->driver->ops->hw_free) | |
925 | continue; | |
926 | ||
927 | component->driver->ops->hw_free(substream); | |
928 | } | |
929 | ||
930 | return 0; | |
931 | } | |
932 | ||
ddee627c LG |
933 | /* |
934 | * Called by ALSA when the hardware params are set by application. This | |
935 | * function can also be called multiple times and can allocate buffers | |
936 | * (using snd_pcm_lib_* ). It's non-atomic. | |
937 | */ | |
938 | static int soc_pcm_hw_params(struct snd_pcm_substream *substream, | |
939 | struct snd_pcm_hw_params *params) | |
940 | { | |
941 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
b8135864 KM |
942 | struct snd_soc_component *component; |
943 | struct snd_soc_rtdcom_list *rtdcom; | |
ddee627c | 944 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
0b7990e3 | 945 | struct snd_soc_dai *codec_dai; |
244e2936 | 946 | int i, ret = 0; |
ddee627c | 947 | |
b8c0dab9 | 948 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); |
75ab9eb6 | 949 | if (rtd->dai_link->ops->hw_params) { |
ddee627c LG |
950 | ret = rtd->dai_link->ops->hw_params(substream, params); |
951 | if (ret < 0) { | |
103d84a3 LG |
952 | dev_err(rtd->card->dev, "ASoC: machine hw_params" |
953 | " failed: %d\n", ret); | |
ddee627c LG |
954 | goto out; |
955 | } | |
956 | } | |
957 | ||
0b7990e3 | 958 | for_each_rtd_codec_dai(rtd, i, codec_dai) { |
2e5894d7 BC |
959 | struct snd_pcm_hw_params codec_params; |
960 | ||
cde79035 RW |
961 | /* |
962 | * Skip CODECs which don't support the current stream type, | |
963 | * the idea being that if a CODEC is not used for the currently | |
964 | * set up transfer direction, it should not need to be | |
965 | * configured, especially since the configuration used might | |
966 | * not even be supported by that CODEC. There may be cases | |
967 | * however where a CODEC needs to be set up although it is | |
968 | * actually not being used for the transfer, e.g. if a | |
969 | * capture-only CODEC is acting as an LRCLK and/or BCLK master | |
970 | * for the DAI link including a playback-only CODEC. | |
971 | * If this becomes necessary, we will have to augment the | |
972 | * machine driver setup with information on how to act, so | |
973 | * we can do the right thing here. | |
974 | */ | |
975 | if (!snd_soc_dai_stream_valid(codec_dai, substream->stream)) | |
976 | continue; | |
977 | ||
2e5894d7 BC |
978 | /* copy params for each codec */ |
979 | codec_params = *params; | |
980 | ||
981 | /* fixup params based on TDM slot masks */ | |
570f18b6 RW |
982 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK && |
983 | codec_dai->tx_mask) | |
2e5894d7 BC |
984 | soc_pcm_codec_params_fixup(&codec_params, |
985 | codec_dai->tx_mask); | |
570f18b6 RW |
986 | |
987 | if (substream->stream == SNDRV_PCM_STREAM_CAPTURE && | |
988 | codec_dai->rx_mask) | |
2e5894d7 BC |
989 | soc_pcm_codec_params_fixup(&codec_params, |
990 | codec_dai->rx_mask); | |
991 | ||
93e6958a BC |
992 | ret = soc_dai_hw_params(substream, &codec_params, codec_dai); |
993 | if(ret < 0) | |
ddee627c | 994 | goto codec_err; |
ddee627c | 995 | |
2e5894d7 BC |
996 | codec_dai->rate = params_rate(&codec_params); |
997 | codec_dai->channels = params_channels(&codec_params); | |
998 | codec_dai->sample_bits = snd_pcm_format_physical_width( | |
999 | params_format(&codec_params)); | |
078a85f2 CK |
1000 | |
1001 | snd_soc_dapm_update_dai(substream, &codec_params, codec_dai); | |
ddee627c LG |
1002 | } |
1003 | ||
93e6958a BC |
1004 | ret = soc_dai_hw_params(substream, params, cpu_dai); |
1005 | if (ret < 0) | |
1006 | goto interface_err; | |
ddee627c | 1007 | |
ca58221d KM |
1008 | /* store the parameters for each DAIs */ |
1009 | cpu_dai->rate = params_rate(params); | |
1010 | cpu_dai->channels = params_channels(params); | |
1011 | cpu_dai->sample_bits = | |
1012 | snd_pcm_format_physical_width(params_format(params)); | |
1013 | ||
1014 | snd_soc_dapm_update_dai(substream, params, cpu_dai); | |
1015 | ||
b8135864 KM |
1016 | for_each_rtdcom(rtd, rtdcom) { |
1017 | component = rtdcom->component; | |
1018 | ||
b8135864 KM |
1019 | if (!component->driver->ops || |
1020 | !component->driver->ops->hw_params) | |
1021 | continue; | |
1022 | ||
244e2936 CK |
1023 | ret = component->driver->ops->hw_params(substream, params); |
1024 | if (ret < 0) { | |
b8135864 KM |
1025 | dev_err(component->dev, |
1026 | "ASoC: %s hw params failed: %d\n", | |
244e2936 CK |
1027 | component->name, ret); |
1028 | goto component_err; | |
b8135864 KM |
1029 | } |
1030 | } | |
244e2936 | 1031 | component = NULL; |
b8135864 | 1032 | |
957ce0c6 | 1033 | ret = soc_pcm_params_symmetry(substream, params); |
1034 | if (ret) | |
b8135864 | 1035 | goto component_err; |
ddee627c | 1036 | out: |
b8c0dab9 | 1037 | mutex_unlock(&rtd->pcm_mutex); |
ddee627c LG |
1038 | return ret; |
1039 | ||
b8135864 | 1040 | component_err: |
244e2936 | 1041 | soc_pcm_components_hw_free(substream, component); |
b8135864 | 1042 | |
9900a422 | 1043 | if (cpu_dai->driver->ops->hw_free) |
ddee627c | 1044 | cpu_dai->driver->ops->hw_free(substream, cpu_dai); |
2371abdc | 1045 | cpu_dai->rate = 0; |
ddee627c LG |
1046 | |
1047 | interface_err: | |
2e5894d7 | 1048 | i = rtd->num_codecs; |
ddee627c LG |
1049 | |
1050 | codec_err: | |
6d11b128 | 1051 | for_each_rtd_codec_dai_rollback(rtd, i, codec_dai) { |
f47b9ad9 JB |
1052 | if (!snd_soc_dai_stream_valid(codec_dai, substream->stream)) |
1053 | continue; | |
1054 | ||
9900a422 | 1055 | if (codec_dai->driver->ops->hw_free) |
2e5894d7 BC |
1056 | codec_dai->driver->ops->hw_free(substream, codec_dai); |
1057 | codec_dai->rate = 0; | |
1058 | } | |
1059 | ||
75ab9eb6 | 1060 | if (rtd->dai_link->ops->hw_free) |
ddee627c LG |
1061 | rtd->dai_link->ops->hw_free(substream); |
1062 | ||
b8c0dab9 | 1063 | mutex_unlock(&rtd->pcm_mutex); |
ddee627c LG |
1064 | return ret; |
1065 | } | |
1066 | ||
1067 | /* | |
1068 | * Frees resources allocated by hw_params, can be called multiple times | |
1069 | */ | |
1070 | static int soc_pcm_hw_free(struct snd_pcm_substream *substream) | |
1071 | { | |
1072 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
ddee627c | 1073 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
2e5894d7 | 1074 | struct snd_soc_dai *codec_dai; |
7f62b6ee | 1075 | bool playback = substream->stream == SNDRV_PCM_STREAM_PLAYBACK; |
2e5894d7 | 1076 | int i; |
ddee627c | 1077 | |
b8c0dab9 | 1078 | mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); |
ddee627c | 1079 | |
d3383420 NC |
1080 | /* clear the corresponding DAIs parameters when going to be inactive */ |
1081 | if (cpu_dai->active == 1) { | |
1082 | cpu_dai->rate = 0; | |
1083 | cpu_dai->channels = 0; | |
1084 | cpu_dai->sample_bits = 0; | |
1085 | } | |
1086 | ||
0b7990e3 | 1087 | for_each_rtd_codec_dai(rtd, i, codec_dai) { |
2e5894d7 BC |
1088 | if (codec_dai->active == 1) { |
1089 | codec_dai->rate = 0; | |
1090 | codec_dai->channels = 0; | |
1091 | codec_dai->sample_bits = 0; | |
1092 | } | |
d3383420 NC |
1093 | } |
1094 | ||
ddee627c | 1095 | /* apply codec digital mute */ |
0b7990e3 KM |
1096 | for_each_rtd_codec_dai(rtd, i, codec_dai) { |
1097 | if ((playback && codec_dai->playback_active == 1) || | |
1098 | (!playback && codec_dai->capture_active == 1)) | |
1099 | snd_soc_dai_digital_mute(codec_dai, 1, | |
2e5894d7 BC |
1100 | substream->stream); |
1101 | } | |
ddee627c LG |
1102 | |
1103 | /* free any machine hw params */ | |
75ab9eb6 | 1104 | if (rtd->dai_link->ops->hw_free) |
ddee627c LG |
1105 | rtd->dai_link->ops->hw_free(substream); |
1106 | ||
b8135864 | 1107 | /* free any component resources */ |
244e2936 | 1108 | soc_pcm_components_hw_free(substream, NULL); |
b8135864 | 1109 | |
ddee627c | 1110 | /* now free hw params for the DAIs */ |
0b7990e3 | 1111 | for_each_rtd_codec_dai(rtd, i, codec_dai) { |
f47b9ad9 JB |
1112 | if (!snd_soc_dai_stream_valid(codec_dai, substream->stream)) |
1113 | continue; | |
1114 | ||
9900a422 | 1115 | if (codec_dai->driver->ops->hw_free) |
2e5894d7 BC |
1116 | codec_dai->driver->ops->hw_free(substream, codec_dai); |
1117 | } | |
ddee627c | 1118 | |
9900a422 | 1119 | if (cpu_dai->driver->ops->hw_free) |
ddee627c LG |
1120 | cpu_dai->driver->ops->hw_free(substream, cpu_dai); |
1121 | ||
b8c0dab9 | 1122 | mutex_unlock(&rtd->pcm_mutex); |
ddee627c LG |
1123 | return 0; |
1124 | } | |
1125 | ||
1126 | static int soc_pcm_trigger(struct snd_pcm_substream *substream, int cmd) | |
1127 | { | |
1128 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
b8135864 KM |
1129 | struct snd_soc_component *component; |
1130 | struct snd_soc_rtdcom_list *rtdcom; | |
ddee627c | 1131 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
2e5894d7 BC |
1132 | struct snd_soc_dai *codec_dai; |
1133 | int i, ret; | |
1134 | ||
0b7990e3 | 1135 | for_each_rtd_codec_dai(rtd, i, codec_dai) { |
9900a422 | 1136 | if (codec_dai->driver->ops->trigger) { |
2e5894d7 BC |
1137 | ret = codec_dai->driver->ops->trigger(substream, |
1138 | cmd, codec_dai); | |
1139 | if (ret < 0) | |
1140 | return ret; | |
1141 | } | |
ddee627c LG |
1142 | } |
1143 | ||
b8135864 KM |
1144 | for_each_rtdcom(rtd, rtdcom) { |
1145 | component = rtdcom->component; | |
1146 | ||
b8135864 KM |
1147 | if (!component->driver->ops || |
1148 | !component->driver->ops->trigger) | |
1149 | continue; | |
1150 | ||
1151 | ret = component->driver->ops->trigger(substream, cmd); | |
1152 | if (ret < 0) | |
1153 | return ret; | |
1154 | } | |
1155 | ||
9900a422 | 1156 | if (cpu_dai->driver->ops->trigger) { |
ddee627c LG |
1157 | ret = cpu_dai->driver->ops->trigger(substream, cmd, cpu_dai); |
1158 | if (ret < 0) | |
1159 | return ret; | |
1160 | } | |
4792b0db | 1161 | |
75ab9eb6 | 1162 | if (rtd->dai_link->ops->trigger) { |
4792b0db JN |
1163 | ret = rtd->dai_link->ops->trigger(substream, cmd); |
1164 | if (ret < 0) | |
1165 | return ret; | |
1166 | } | |
1167 | ||
ddee627c LG |
1168 | return 0; |
1169 | } | |
1170 | ||
45c0a188 MB |
1171 | static int soc_pcm_bespoke_trigger(struct snd_pcm_substream *substream, |
1172 | int cmd) | |
07bf84aa LG |
1173 | { |
1174 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
07bf84aa | 1175 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
2e5894d7 BC |
1176 | struct snd_soc_dai *codec_dai; |
1177 | int i, ret; | |
1178 | ||
0b7990e3 | 1179 | for_each_rtd_codec_dai(rtd, i, codec_dai) { |
9900a422 | 1180 | if (codec_dai->driver->ops->bespoke_trigger) { |
2e5894d7 BC |
1181 | ret = codec_dai->driver->ops->bespoke_trigger(substream, |
1182 | cmd, codec_dai); | |
1183 | if (ret < 0) | |
1184 | return ret; | |
1185 | } | |
07bf84aa LG |
1186 | } |
1187 | ||
9900a422 | 1188 | if (cpu_dai->driver->ops->bespoke_trigger) { |
07bf84aa LG |
1189 | ret = cpu_dai->driver->ops->bespoke_trigger(substream, cmd, cpu_dai); |
1190 | if (ret < 0) | |
1191 | return ret; | |
1192 | } | |
1193 | return 0; | |
1194 | } | |
ddee627c LG |
1195 | /* |
1196 | * soc level wrapper for pointer callback | |
ef050bec | 1197 | * If cpu_dai, codec_dai, component driver has the delay callback, then |
ddee627c LG |
1198 | * the runtime->delay will be updated accordingly. |
1199 | */ | |
1200 | static snd_pcm_uframes_t soc_pcm_pointer(struct snd_pcm_substream *substream) | |
1201 | { | |
1202 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
b8135864 KM |
1203 | struct snd_soc_component *component; |
1204 | struct snd_soc_rtdcom_list *rtdcom; | |
ddee627c | 1205 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
2e5894d7 | 1206 | struct snd_soc_dai *codec_dai; |
ddee627c LG |
1207 | struct snd_pcm_runtime *runtime = substream->runtime; |
1208 | snd_pcm_uframes_t offset = 0; | |
1209 | snd_pcm_sframes_t delay = 0; | |
2e5894d7 BC |
1210 | snd_pcm_sframes_t codec_delay = 0; |
1211 | int i; | |
ddee627c | 1212 | |
9fb4c2bf AA |
1213 | /* clearing the previous total delay */ |
1214 | runtime->delay = 0; | |
1215 | ||
b8135864 KM |
1216 | for_each_rtdcom(rtd, rtdcom) { |
1217 | component = rtdcom->component; | |
1218 | ||
b8135864 KM |
1219 | if (!component->driver->ops || |
1220 | !component->driver->ops->pointer) | |
1221 | continue; | |
1222 | ||
1223 | /* FIXME: use 1st pointer */ | |
1224 | offset = component->driver->ops->pointer(substream); | |
1225 | break; | |
1226 | } | |
9fb4c2bf AA |
1227 | /* base delay if assigned in pointer callback */ |
1228 | delay = runtime->delay; | |
b8135864 | 1229 | |
9900a422 | 1230 | if (cpu_dai->driver->ops->delay) |
ddee627c LG |
1231 | delay += cpu_dai->driver->ops->delay(substream, cpu_dai); |
1232 | ||
0b7990e3 | 1233 | for_each_rtd_codec_dai(rtd, i, codec_dai) { |
9900a422 | 1234 | if (codec_dai->driver->ops->delay) |
2e5894d7 BC |
1235 | codec_delay = max(codec_delay, |
1236 | codec_dai->driver->ops->delay(substream, | |
1237 | codec_dai)); | |
1238 | } | |
1239 | delay += codec_delay; | |
ddee627c | 1240 | |
ddee627c LG |
1241 | runtime->delay = delay; |
1242 | ||
1243 | return offset; | |
1244 | } | |
1245 | ||
01d7584c LG |
1246 | /* connect a FE and BE */ |
1247 | static int dpcm_be_connect(struct snd_soc_pcm_runtime *fe, | |
1248 | struct snd_soc_pcm_runtime *be, int stream) | |
1249 | { | |
1250 | struct snd_soc_dpcm *dpcm; | |
a9764869 | 1251 | unsigned long flags; |
01d7584c LG |
1252 | |
1253 | /* only add new dpcms */ | |
8d6258a4 | 1254 | for_each_dpcm_be(fe, stream, dpcm) { |
01d7584c LG |
1255 | if (dpcm->be == be && dpcm->fe == fe) |
1256 | return 0; | |
1257 | } | |
1258 | ||
1259 | dpcm = kzalloc(sizeof(struct snd_soc_dpcm), GFP_KERNEL); | |
1260 | if (!dpcm) | |
1261 | return -ENOMEM; | |
1262 | ||
1263 | dpcm->be = be; | |
1264 | dpcm->fe = fe; | |
1265 | be->dpcm[stream].runtime = fe->dpcm[stream].runtime; | |
1266 | dpcm->state = SND_SOC_DPCM_LINK_STATE_NEW; | |
a9764869 | 1267 | spin_lock_irqsave(&fe->card->dpcm_lock, flags); |
01d7584c LG |
1268 | list_add(&dpcm->list_be, &fe->dpcm[stream].be_clients); |
1269 | list_add(&dpcm->list_fe, &be->dpcm[stream].fe_clients); | |
a9764869 | 1270 | spin_unlock_irqrestore(&fe->card->dpcm_lock, flags); |
01d7584c | 1271 | |
7cc302d2 | 1272 | dev_dbg(fe->dev, "connected new DPCM %s path %s %s %s\n", |
01d7584c LG |
1273 | stream ? "capture" : "playback", fe->dai_link->name, |
1274 | stream ? "<-" : "->", be->dai_link->name); | |
1275 | ||
f86dcef8 | 1276 | #ifdef CONFIG_DEBUG_FS |
6553bf06 LPC |
1277 | if (fe->debugfs_dpcm_root) |
1278 | dpcm->debugfs_state = debugfs_create_u32(be->dai_link->name, 0644, | |
1279 | fe->debugfs_dpcm_root, &dpcm->state); | |
f86dcef8 | 1280 | #endif |
01d7584c LG |
1281 | return 1; |
1282 | } | |
1283 | ||
1284 | /* reparent a BE onto another FE */ | |
1285 | static void dpcm_be_reparent(struct snd_soc_pcm_runtime *fe, | |
1286 | struct snd_soc_pcm_runtime *be, int stream) | |
1287 | { | |
1288 | struct snd_soc_dpcm *dpcm; | |
1289 | struct snd_pcm_substream *fe_substream, *be_substream; | |
1290 | ||
1291 | /* reparent if BE is connected to other FEs */ | |
1292 | if (!be->dpcm[stream].users) | |
1293 | return; | |
1294 | ||
1295 | be_substream = snd_soc_dpcm_get_substream(be, stream); | |
1296 | ||
d2e24d64 | 1297 | for_each_dpcm_fe(be, stream, dpcm) { |
01d7584c LG |
1298 | if (dpcm->fe == fe) |
1299 | continue; | |
1300 | ||
7cc302d2 | 1301 | dev_dbg(fe->dev, "reparent %s path %s %s %s\n", |
01d7584c LG |
1302 | stream ? "capture" : "playback", |
1303 | dpcm->fe->dai_link->name, | |
1304 | stream ? "<-" : "->", dpcm->be->dai_link->name); | |
1305 | ||
1306 | fe_substream = snd_soc_dpcm_get_substream(dpcm->fe, stream); | |
1307 | be_substream->runtime = fe_substream->runtime; | |
1308 | break; | |
1309 | } | |
1310 | } | |
1311 | ||
1312 | /* disconnect a BE and FE */ | |
23607025 | 1313 | void dpcm_be_disconnect(struct snd_soc_pcm_runtime *fe, int stream) |
01d7584c LG |
1314 | { |
1315 | struct snd_soc_dpcm *dpcm, *d; | |
a9764869 | 1316 | unsigned long flags; |
01d7584c | 1317 | |
8d6258a4 | 1318 | for_each_dpcm_be_safe(fe, stream, dpcm, d) { |
103d84a3 | 1319 | dev_dbg(fe->dev, "ASoC: BE %s disconnect check for %s\n", |
01d7584c LG |
1320 | stream ? "capture" : "playback", |
1321 | dpcm->be->dai_link->name); | |
1322 | ||
1323 | if (dpcm->state != SND_SOC_DPCM_LINK_STATE_FREE) | |
1324 | continue; | |
1325 | ||
7cc302d2 | 1326 | dev_dbg(fe->dev, "freed DSP %s path %s %s %s\n", |
01d7584c LG |
1327 | stream ? "capture" : "playback", fe->dai_link->name, |
1328 | stream ? "<-" : "->", dpcm->be->dai_link->name); | |
1329 | ||
1330 | /* BEs still alive need new FE */ | |
1331 | dpcm_be_reparent(fe, dpcm->be, stream); | |
1332 | ||
f86dcef8 LG |
1333 | #ifdef CONFIG_DEBUG_FS |
1334 | debugfs_remove(dpcm->debugfs_state); | |
1335 | #endif | |
a9764869 | 1336 | spin_lock_irqsave(&fe->card->dpcm_lock, flags); |
01d7584c LG |
1337 | list_del(&dpcm->list_be); |
1338 | list_del(&dpcm->list_fe); | |
a9764869 | 1339 | spin_unlock_irqrestore(&fe->card->dpcm_lock, flags); |
01d7584c LG |
1340 | kfree(dpcm); |
1341 | } | |
1342 | } | |
1343 | ||
1344 | /* get BE for DAI widget and stream */ | |
1345 | static struct snd_soc_pcm_runtime *dpcm_get_be(struct snd_soc_card *card, | |
1346 | struct snd_soc_dapm_widget *widget, int stream) | |
1347 | { | |
1348 | struct snd_soc_pcm_runtime *be; | |
7afecb30 | 1349 | struct snd_soc_dai *dai; |
1a497983 | 1350 | int i; |
01d7584c | 1351 | |
3c146465 LG |
1352 | dev_dbg(card->dev, "ASoC: find BE for widget %s\n", widget->name); |
1353 | ||
01d7584c | 1354 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) { |
bcb1fd1f | 1355 | for_each_card_rtds(card, be) { |
01d7584c | 1356 | |
35ea0655 LG |
1357 | if (!be->dai_link->no_pcm) |
1358 | continue; | |
1359 | ||
3c146465 LG |
1360 | dev_dbg(card->dev, "ASoC: try BE : %s\n", |
1361 | be->cpu_dai->playback_widget ? | |
1362 | be->cpu_dai->playback_widget->name : "(not set)"); | |
1363 | ||
2e5894d7 | 1364 | if (be->cpu_dai->playback_widget == widget) |
01d7584c | 1365 | return be; |
2e5894d7 | 1366 | |
7afecb30 | 1367 | for_each_rtd_codec_dai(be, i, dai) { |
2e5894d7 BC |
1368 | if (dai->playback_widget == widget) |
1369 | return be; | |
1370 | } | |
01d7584c LG |
1371 | } |
1372 | } else { | |
1373 | ||
bcb1fd1f | 1374 | for_each_card_rtds(card, be) { |
01d7584c | 1375 | |
35ea0655 LG |
1376 | if (!be->dai_link->no_pcm) |
1377 | continue; | |
1378 | ||
3c146465 LG |
1379 | dev_dbg(card->dev, "ASoC: try BE %s\n", |
1380 | be->cpu_dai->capture_widget ? | |
1381 | be->cpu_dai->capture_widget->name : "(not set)"); | |
1382 | ||
2e5894d7 | 1383 | if (be->cpu_dai->capture_widget == widget) |
01d7584c | 1384 | return be; |
2e5894d7 | 1385 | |
7afecb30 | 1386 | for_each_rtd_codec_dai(be, i, dai) { |
2e5894d7 BC |
1387 | if (dai->capture_widget == widget) |
1388 | return be; | |
1389 | } | |
01d7584c LG |
1390 | } |
1391 | } | |
1392 | ||
3c146465 | 1393 | /* dai link name and stream name set correctly ? */ |
103d84a3 | 1394 | dev_err(card->dev, "ASoC: can't get %s BE for %s\n", |
01d7584c LG |
1395 | stream ? "capture" : "playback", widget->name); |
1396 | return NULL; | |
1397 | } | |
1398 | ||
1399 | static inline struct snd_soc_dapm_widget * | |
37018610 | 1400 | dai_get_widget(struct snd_soc_dai *dai, int stream) |
01d7584c LG |
1401 | { |
1402 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) | |
37018610 | 1403 | return dai->playback_widget; |
01d7584c | 1404 | else |
37018610 | 1405 | return dai->capture_widget; |
01d7584c LG |
1406 | } |
1407 | ||
1408 | static int widget_in_list(struct snd_soc_dapm_widget_list *list, | |
1409 | struct snd_soc_dapm_widget *widget) | |
1410 | { | |
1411 | int i; | |
1412 | ||
1413 | for (i = 0; i < list->num_widgets; i++) { | |
1414 | if (widget == list->widgets[i]) | |
1415 | return 1; | |
1416 | } | |
1417 | ||
1418 | return 0; | |
1419 | } | |
1420 | ||
5fdd022c PS |
1421 | static bool dpcm_end_walk_at_be(struct snd_soc_dapm_widget *widget, |
1422 | enum snd_soc_dapm_direction dir) | |
1423 | { | |
1424 | struct snd_soc_card *card = widget->dapm->card; | |
1425 | struct snd_soc_pcm_runtime *rtd; | |
0b7990e3 | 1426 | struct snd_soc_dai *dai; |
5fdd022c PS |
1427 | int i; |
1428 | ||
1429 | if (dir == SND_SOC_DAPM_DIR_OUT) { | |
bcb1fd1f | 1430 | for_each_card_rtds(card, rtd) { |
5fdd022c PS |
1431 | if (!rtd->dai_link->no_pcm) |
1432 | continue; | |
1433 | ||
1434 | if (rtd->cpu_dai->playback_widget == widget) | |
1435 | return true; | |
1436 | ||
0b7990e3 | 1437 | for_each_rtd_codec_dai(rtd, i, dai) { |
5fdd022c PS |
1438 | if (dai->playback_widget == widget) |
1439 | return true; | |
1440 | } | |
1441 | } | |
1442 | } else { /* SND_SOC_DAPM_DIR_IN */ | |
bcb1fd1f | 1443 | for_each_card_rtds(card, rtd) { |
5fdd022c PS |
1444 | if (!rtd->dai_link->no_pcm) |
1445 | continue; | |
1446 | ||
1447 | if (rtd->cpu_dai->capture_widget == widget) | |
1448 | return true; | |
1449 | ||
0b7990e3 | 1450 | for_each_rtd_codec_dai(rtd, i, dai) { |
5fdd022c PS |
1451 | if (dai->capture_widget == widget) |
1452 | return true; | |
1453 | } | |
1454 | } | |
1455 | } | |
1456 | ||
1457 | return false; | |
1458 | } | |
1459 | ||
23607025 | 1460 | int dpcm_path_get(struct snd_soc_pcm_runtime *fe, |
1ce43acf | 1461 | int stream, struct snd_soc_dapm_widget_list **list) |
01d7584c LG |
1462 | { |
1463 | struct snd_soc_dai *cpu_dai = fe->cpu_dai; | |
01d7584c LG |
1464 | int paths; |
1465 | ||
01d7584c | 1466 | /* get number of valid DAI paths and their widgets */ |
6742064a | 1467 | paths = snd_soc_dapm_dai_get_connected_widgets(cpu_dai, stream, list, |
5fdd022c | 1468 | dpcm_end_walk_at_be); |
01d7584c | 1469 | |
103d84a3 | 1470 | dev_dbg(fe->dev, "ASoC: found %d audio %s paths\n", paths, |
01d7584c LG |
1471 | stream ? "capture" : "playback"); |
1472 | ||
01d7584c LG |
1473 | return paths; |
1474 | } | |
1475 | ||
01d7584c LG |
1476 | static int dpcm_prune_paths(struct snd_soc_pcm_runtime *fe, int stream, |
1477 | struct snd_soc_dapm_widget_list **list_) | |
1478 | { | |
1479 | struct snd_soc_dpcm *dpcm; | |
1480 | struct snd_soc_dapm_widget_list *list = *list_; | |
1481 | struct snd_soc_dapm_widget *widget; | |
7afecb30 | 1482 | struct snd_soc_dai *dai; |
01d7584c LG |
1483 | int prune = 0; |
1484 | ||
1485 | /* Destroy any old FE <--> BE connections */ | |
8d6258a4 | 1486 | for_each_dpcm_be(fe, stream, dpcm) { |
2e5894d7 | 1487 | unsigned int i; |
01d7584c LG |
1488 | |
1489 | /* is there a valid CPU DAI widget for this BE */ | |
37018610 | 1490 | widget = dai_get_widget(dpcm->be->cpu_dai, stream); |
01d7584c LG |
1491 | |
1492 | /* prune the BE if it's no longer in our active list */ | |
1493 | if (widget && widget_in_list(list, widget)) | |
1494 | continue; | |
1495 | ||
1496 | /* is there a valid CODEC DAI widget for this BE */ | |
7afecb30 | 1497 | for_each_rtd_codec_dai(dpcm->be, i, dai) { |
2e5894d7 | 1498 | widget = dai_get_widget(dai, stream); |
01d7584c | 1499 | |
2e5894d7 BC |
1500 | /* prune the BE if it's no longer in our active list */ |
1501 | if (widget && widget_in_list(list, widget)) | |
1502 | continue; | |
1503 | } | |
01d7584c | 1504 | |
103d84a3 | 1505 | dev_dbg(fe->dev, "ASoC: pruning %s BE %s for %s\n", |
01d7584c LG |
1506 | stream ? "capture" : "playback", |
1507 | dpcm->be->dai_link->name, fe->dai_link->name); | |
1508 | dpcm->state = SND_SOC_DPCM_LINK_STATE_FREE; | |
1509 | dpcm->be->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_BE; | |
1510 | prune++; | |
1511 | } | |
1512 | ||
103d84a3 | 1513 | dev_dbg(fe->dev, "ASoC: found %d old BE paths for pruning\n", prune); |
01d7584c LG |
1514 | return prune; |
1515 | } | |
1516 | ||
1517 | static int dpcm_add_paths(struct snd_soc_pcm_runtime *fe, int stream, | |
1518 | struct snd_soc_dapm_widget_list **list_) | |
1519 | { | |
1520 | struct snd_soc_card *card = fe->card; | |
1521 | struct snd_soc_dapm_widget_list *list = *list_; | |
1522 | struct snd_soc_pcm_runtime *be; | |
1523 | int i, new = 0, err; | |
1524 | ||
1525 | /* Create any new FE <--> BE connections */ | |
1526 | for (i = 0; i < list->num_widgets; i++) { | |
1527 | ||
4616274d MB |
1528 | switch (list->widgets[i]->id) { |
1529 | case snd_soc_dapm_dai_in: | |
c5b8540d KC |
1530 | if (stream != SNDRV_PCM_STREAM_PLAYBACK) |
1531 | continue; | |
1532 | break; | |
4616274d | 1533 | case snd_soc_dapm_dai_out: |
c5b8540d KC |
1534 | if (stream != SNDRV_PCM_STREAM_CAPTURE) |
1535 | continue; | |
4616274d MB |
1536 | break; |
1537 | default: | |
01d7584c | 1538 | continue; |
4616274d | 1539 | } |
01d7584c LG |
1540 | |
1541 | /* is there a valid BE rtd for this widget */ | |
1542 | be = dpcm_get_be(card, list->widgets[i], stream); | |
1543 | if (!be) { | |
103d84a3 | 1544 | dev_err(fe->dev, "ASoC: no BE found for %s\n", |
01d7584c LG |
1545 | list->widgets[i]->name); |
1546 | continue; | |
1547 | } | |
1548 | ||
1549 | /* make sure BE is a real BE */ | |
1550 | if (!be->dai_link->no_pcm) | |
1551 | continue; | |
1552 | ||
1553 | /* don't connect if FE is not running */ | |
23607025 | 1554 | if (!fe->dpcm[stream].runtime && !fe->fe_compr) |
01d7584c LG |
1555 | continue; |
1556 | ||
1557 | /* newly connected FE and BE */ | |
1558 | err = dpcm_be_connect(fe, be, stream); | |
1559 | if (err < 0) { | |
103d84a3 | 1560 | dev_err(fe->dev, "ASoC: can't connect %s\n", |
01d7584c LG |
1561 | list->widgets[i]->name); |
1562 | break; | |
1563 | } else if (err == 0) /* already connected */ | |
1564 | continue; | |
1565 | ||
1566 | /* new */ | |
1567 | be->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_BE; | |
1568 | new++; | |
1569 | } | |
1570 | ||
103d84a3 | 1571 | dev_dbg(fe->dev, "ASoC: found %d new BE paths\n", new); |
01d7584c LG |
1572 | return new; |
1573 | } | |
1574 | ||
1575 | /* | |
1576 | * Find the corresponding BE DAIs that source or sink audio to this | |
1577 | * FE substream. | |
1578 | */ | |
23607025 | 1579 | int dpcm_process_paths(struct snd_soc_pcm_runtime *fe, |
01d7584c LG |
1580 | int stream, struct snd_soc_dapm_widget_list **list, int new) |
1581 | { | |
1582 | if (new) | |
1583 | return dpcm_add_paths(fe, stream, list); | |
1584 | else | |
1585 | return dpcm_prune_paths(fe, stream, list); | |
1586 | } | |
1587 | ||
23607025 | 1588 | void dpcm_clear_pending_state(struct snd_soc_pcm_runtime *fe, int stream) |
01d7584c LG |
1589 | { |
1590 | struct snd_soc_dpcm *dpcm; | |
a9764869 | 1591 | unsigned long flags; |
01d7584c | 1592 | |
a9764869 | 1593 | spin_lock_irqsave(&fe->card->dpcm_lock, flags); |
8d6258a4 | 1594 | for_each_dpcm_be(fe, stream, dpcm) |
01d7584c LG |
1595 | dpcm->be->dpcm[stream].runtime_update = |
1596 | SND_SOC_DPCM_UPDATE_NO; | |
a9764869 | 1597 | spin_unlock_irqrestore(&fe->card->dpcm_lock, flags); |
01d7584c LG |
1598 | } |
1599 | ||
1600 | static void dpcm_be_dai_startup_unwind(struct snd_soc_pcm_runtime *fe, | |
1601 | int stream) | |
1602 | { | |
1603 | struct snd_soc_dpcm *dpcm; | |
1604 | ||
1605 | /* disable any enabled and non active backends */ | |
8d6258a4 | 1606 | for_each_dpcm_be(fe, stream, dpcm) { |
01d7584c LG |
1607 | |
1608 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
1609 | struct snd_pcm_substream *be_substream = | |
1610 | snd_soc_dpcm_get_substream(be, stream); | |
1611 | ||
1612 | if (be->dpcm[stream].users == 0) | |
103d84a3 | 1613 | dev_err(be->dev, "ASoC: no users %s at close - state %d\n", |
01d7584c LG |
1614 | stream ? "capture" : "playback", |
1615 | be->dpcm[stream].state); | |
1616 | ||
1617 | if (--be->dpcm[stream].users != 0) | |
1618 | continue; | |
1619 | ||
1620 | if (be->dpcm[stream].state != SND_SOC_DPCM_STATE_OPEN) | |
1621 | continue; | |
1622 | ||
1623 | soc_pcm_close(be_substream); | |
1624 | be_substream->runtime = NULL; | |
1625 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_CLOSE; | |
1626 | } | |
1627 | } | |
1628 | ||
23607025 | 1629 | int dpcm_be_dai_startup(struct snd_soc_pcm_runtime *fe, int stream) |
01d7584c LG |
1630 | { |
1631 | struct snd_soc_dpcm *dpcm; | |
1632 | int err, count = 0; | |
1633 | ||
1634 | /* only startup BE DAIs that are either sinks or sources to this FE DAI */ | |
8d6258a4 | 1635 | for_each_dpcm_be(fe, stream, dpcm) { |
01d7584c LG |
1636 | |
1637 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
1638 | struct snd_pcm_substream *be_substream = | |
1639 | snd_soc_dpcm_get_substream(be, stream); | |
1640 | ||
2062b4c5 RKAL |
1641 | if (!be_substream) { |
1642 | dev_err(be->dev, "ASoC: no backend %s stream\n", | |
1643 | stream ? "capture" : "playback"); | |
1644 | continue; | |
1645 | } | |
1646 | ||
01d7584c LG |
1647 | /* is this op for this BE ? */ |
1648 | if (!snd_soc_dpcm_be_can_update(fe, be, stream)) | |
1649 | continue; | |
1650 | ||
1651 | /* first time the dpcm is open ? */ | |
1652 | if (be->dpcm[stream].users == DPCM_MAX_BE_USERS) | |
103d84a3 | 1653 | dev_err(be->dev, "ASoC: too many users %s at open %d\n", |
01d7584c LG |
1654 | stream ? "capture" : "playback", |
1655 | be->dpcm[stream].state); | |
1656 | ||
1657 | if (be->dpcm[stream].users++ != 0) | |
1658 | continue; | |
1659 | ||
1660 | if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_NEW) && | |
1661 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_CLOSE)) | |
1662 | continue; | |
1663 | ||
2062b4c5 RKAL |
1664 | dev_dbg(be->dev, "ASoC: open %s BE %s\n", |
1665 | stream ? "capture" : "playback", be->dai_link->name); | |
01d7584c LG |
1666 | |
1667 | be_substream->runtime = be->dpcm[stream].runtime; | |
1668 | err = soc_pcm_open(be_substream); | |
1669 | if (err < 0) { | |
103d84a3 | 1670 | dev_err(be->dev, "ASoC: BE open failed %d\n", err); |
01d7584c LG |
1671 | be->dpcm[stream].users--; |
1672 | if (be->dpcm[stream].users < 0) | |
103d84a3 | 1673 | dev_err(be->dev, "ASoC: no users %s at unwind %d\n", |
01d7584c LG |
1674 | stream ? "capture" : "playback", |
1675 | be->dpcm[stream].state); | |
1676 | ||
1677 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_CLOSE; | |
1678 | goto unwind; | |
1679 | } | |
1680 | ||
1681 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_OPEN; | |
1682 | count++; | |
1683 | } | |
1684 | ||
1685 | return count; | |
1686 | ||
1687 | unwind: | |
1688 | /* disable any enabled and non active backends */ | |
8d6258a4 | 1689 | for_each_dpcm_be_rollback(fe, stream, dpcm) { |
01d7584c LG |
1690 | struct snd_soc_pcm_runtime *be = dpcm->be; |
1691 | struct snd_pcm_substream *be_substream = | |
1692 | snd_soc_dpcm_get_substream(be, stream); | |
1693 | ||
1694 | if (!snd_soc_dpcm_be_can_update(fe, be, stream)) | |
1695 | continue; | |
1696 | ||
1697 | if (be->dpcm[stream].users == 0) | |
103d84a3 | 1698 | dev_err(be->dev, "ASoC: no users %s at close %d\n", |
01d7584c LG |
1699 | stream ? "capture" : "playback", |
1700 | be->dpcm[stream].state); | |
1701 | ||
1702 | if (--be->dpcm[stream].users != 0) | |
1703 | continue; | |
1704 | ||
1705 | if (be->dpcm[stream].state != SND_SOC_DPCM_STATE_OPEN) | |
1706 | continue; | |
1707 | ||
1708 | soc_pcm_close(be_substream); | |
1709 | be_substream->runtime = NULL; | |
1710 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_CLOSE; | |
1711 | } | |
1712 | ||
1713 | return err; | |
1714 | } | |
1715 | ||
08ae9b45 | 1716 | static void dpcm_init_runtime_hw(struct snd_pcm_runtime *runtime, |
435ffb76 | 1717 | struct snd_soc_pcm_stream *stream) |
08ae9b45 LPC |
1718 | { |
1719 | runtime->hw.rate_min = stream->rate_min; | |
e33ffbd9 | 1720 | runtime->hw.rate_max = min_not_zero(stream->rate_max, UINT_MAX); |
08ae9b45 LPC |
1721 | runtime->hw.channels_min = stream->channels_min; |
1722 | runtime->hw.channels_max = stream->channels_max; | |
002220a9 | 1723 | if (runtime->hw.formats) |
435ffb76 | 1724 | runtime->hw.formats &= stream->formats; |
002220a9 | 1725 | else |
435ffb76 | 1726 | runtime->hw.formats = stream->formats; |
08ae9b45 LPC |
1727 | runtime->hw.rates = stream->rates; |
1728 | } | |
1729 | ||
435ffb76 JB |
1730 | static void dpcm_runtime_merge_format(struct snd_pcm_substream *substream, |
1731 | u64 *formats) | |
b073ed4e KM |
1732 | { |
1733 | struct snd_soc_pcm_runtime *fe = substream->private_data; | |
1734 | struct snd_soc_dpcm *dpcm; | |
7afecb30 | 1735 | struct snd_soc_dai *dai; |
b073ed4e KM |
1736 | int stream = substream->stream; |
1737 | ||
1738 | if (!fe->dai_link->dpcm_merged_format) | |
435ffb76 | 1739 | return; |
b073ed4e KM |
1740 | |
1741 | /* | |
1742 | * It returns merged BE codec format | |
1743 | * if FE want to use it (= dpcm_merged_format) | |
1744 | */ | |
1745 | ||
8d6258a4 | 1746 | for_each_dpcm_be(fe, stream, dpcm) { |
b073ed4e KM |
1747 | struct snd_soc_pcm_runtime *be = dpcm->be; |
1748 | struct snd_soc_dai_driver *codec_dai_drv; | |
1749 | struct snd_soc_pcm_stream *codec_stream; | |
1750 | int i; | |
1751 | ||
7afecb30 | 1752 | for_each_rtd_codec_dai(be, i, dai) { |
4febced1 JB |
1753 | /* |
1754 | * Skip CODECs which don't support the current stream | |
1755 | * type. See soc_pcm_init_runtime_hw() for more details | |
1756 | */ | |
7afecb30 | 1757 | if (!snd_soc_dai_stream_valid(dai, stream)) |
4febced1 JB |
1758 | continue; |
1759 | ||
7afecb30 | 1760 | codec_dai_drv = dai->driver; |
b073ed4e KM |
1761 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) |
1762 | codec_stream = &codec_dai_drv->playback; | |
1763 | else | |
1764 | codec_stream = &codec_dai_drv->capture; | |
1765 | ||
435ffb76 | 1766 | *formats &= codec_stream->formats; |
b073ed4e KM |
1767 | } |
1768 | } | |
b073ed4e KM |
1769 | } |
1770 | ||
435ffb76 JB |
1771 | static void dpcm_runtime_merge_chan(struct snd_pcm_substream *substream, |
1772 | unsigned int *channels_min, | |
1773 | unsigned int *channels_max) | |
f4c277b8 JW |
1774 | { |
1775 | struct snd_soc_pcm_runtime *fe = substream->private_data; | |
1776 | struct snd_soc_dpcm *dpcm; | |
1777 | int stream = substream->stream; | |
1778 | ||
1779 | if (!fe->dai_link->dpcm_merged_chan) | |
1780 | return; | |
1781 | ||
f4c277b8 JW |
1782 | /* |
1783 | * It returns merged BE codec channel; | |
1784 | * if FE want to use it (= dpcm_merged_chan) | |
1785 | */ | |
1786 | ||
8d6258a4 | 1787 | for_each_dpcm_be(fe, stream, dpcm) { |
f4c277b8 | 1788 | struct snd_soc_pcm_runtime *be = dpcm->be; |
4f2bd18b | 1789 | struct snd_soc_dai_driver *cpu_dai_drv = be->cpu_dai->driver; |
f4c277b8 JW |
1790 | struct snd_soc_dai_driver *codec_dai_drv; |
1791 | struct snd_soc_pcm_stream *codec_stream; | |
4f2bd18b JB |
1792 | struct snd_soc_pcm_stream *cpu_stream; |
1793 | ||
1794 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) | |
1795 | cpu_stream = &cpu_dai_drv->playback; | |
1796 | else | |
1797 | cpu_stream = &cpu_dai_drv->capture; | |
1798 | ||
1799 | *channels_min = max(*channels_min, cpu_stream->channels_min); | |
1800 | *channels_max = min(*channels_max, cpu_stream->channels_max); | |
1801 | ||
1802 | /* | |
1803 | * chan min/max cannot be enforced if there are multiple CODEC | |
1804 | * DAIs connected to a single CPU DAI, use CPU DAI's directly | |
1805 | */ | |
1806 | if (be->num_codecs == 1) { | |
1807 | codec_dai_drv = be->codec_dais[0]->driver; | |
f4c277b8 | 1808 | |
f4c277b8 JW |
1809 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) |
1810 | codec_stream = &codec_dai_drv->playback; | |
1811 | else | |
1812 | codec_stream = &codec_dai_drv->capture; | |
1813 | ||
1814 | *channels_min = max(*channels_min, | |
1815 | codec_stream->channels_min); | |
1816 | *channels_max = min(*channels_max, | |
1817 | codec_stream->channels_max); | |
1818 | } | |
1819 | } | |
1820 | } | |
1821 | ||
baacd8d1 JB |
1822 | static void dpcm_runtime_merge_rate(struct snd_pcm_substream *substream, |
1823 | unsigned int *rates, | |
1824 | unsigned int *rate_min, | |
1825 | unsigned int *rate_max) | |
1826 | { | |
1827 | struct snd_soc_pcm_runtime *fe = substream->private_data; | |
1828 | struct snd_soc_dpcm *dpcm; | |
1829 | int stream = substream->stream; | |
1830 | ||
1831 | if (!fe->dai_link->dpcm_merged_rate) | |
1832 | return; | |
1833 | ||
1834 | /* | |
1835 | * It returns merged BE codec channel; | |
1836 | * if FE want to use it (= dpcm_merged_chan) | |
1837 | */ | |
1838 | ||
8d6258a4 | 1839 | for_each_dpcm_be(fe, stream, dpcm) { |
baacd8d1 JB |
1840 | struct snd_soc_pcm_runtime *be = dpcm->be; |
1841 | struct snd_soc_dai_driver *cpu_dai_drv = be->cpu_dai->driver; | |
1842 | struct snd_soc_dai_driver *codec_dai_drv; | |
1843 | struct snd_soc_pcm_stream *codec_stream; | |
1844 | struct snd_soc_pcm_stream *cpu_stream; | |
7afecb30 | 1845 | struct snd_soc_dai *dai; |
baacd8d1 JB |
1846 | int i; |
1847 | ||
1848 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) | |
1849 | cpu_stream = &cpu_dai_drv->playback; | |
1850 | else | |
1851 | cpu_stream = &cpu_dai_drv->capture; | |
1852 | ||
1853 | *rate_min = max(*rate_min, cpu_stream->rate_min); | |
1854 | *rate_max = min_not_zero(*rate_max, cpu_stream->rate_max); | |
1855 | *rates = snd_pcm_rate_mask_intersect(*rates, cpu_stream->rates); | |
1856 | ||
7afecb30 | 1857 | for_each_rtd_codec_dai(be, i, dai) { |
baacd8d1 JB |
1858 | /* |
1859 | * Skip CODECs which don't support the current stream | |
1860 | * type. See soc_pcm_init_runtime_hw() for more details | |
1861 | */ | |
7afecb30 | 1862 | if (!snd_soc_dai_stream_valid(dai, stream)) |
baacd8d1 JB |
1863 | continue; |
1864 | ||
7afecb30 | 1865 | codec_dai_drv = dai->driver; |
baacd8d1 JB |
1866 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) |
1867 | codec_stream = &codec_dai_drv->playback; | |
1868 | else | |
1869 | codec_stream = &codec_dai_drv->capture; | |
1870 | ||
1871 | *rate_min = max(*rate_min, codec_stream->rate_min); | |
1872 | *rate_max = min_not_zero(*rate_max, | |
1873 | codec_stream->rate_max); | |
1874 | *rates = snd_pcm_rate_mask_intersect(*rates, | |
1875 | codec_stream->rates); | |
1876 | } | |
1877 | } | |
1878 | } | |
1879 | ||
45c0a188 | 1880 | static void dpcm_set_fe_runtime(struct snd_pcm_substream *substream) |
01d7584c LG |
1881 | { |
1882 | struct snd_pcm_runtime *runtime = substream->runtime; | |
1883 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
1884 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
1885 | struct snd_soc_dai_driver *cpu_dai_drv = cpu_dai->driver; | |
1886 | ||
08ae9b45 | 1887 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) |
435ffb76 | 1888 | dpcm_init_runtime_hw(runtime, &cpu_dai_drv->playback); |
08ae9b45 | 1889 | else |
435ffb76 | 1890 | dpcm_init_runtime_hw(runtime, &cpu_dai_drv->capture); |
f4c277b8 | 1891 | |
435ffb76 JB |
1892 | dpcm_runtime_merge_format(substream, &runtime->hw.formats); |
1893 | dpcm_runtime_merge_chan(substream, &runtime->hw.channels_min, | |
1894 | &runtime->hw.channels_max); | |
baacd8d1 JB |
1895 | dpcm_runtime_merge_rate(substream, &runtime->hw.rates, |
1896 | &runtime->hw.rate_min, &runtime->hw.rate_max); | |
01d7584c LG |
1897 | } |
1898 | ||
ea9d0d77 TI |
1899 | static int dpcm_fe_dai_do_trigger(struct snd_pcm_substream *substream, int cmd); |
1900 | ||
1901 | /* Set FE's runtime_update state; the state is protected via PCM stream lock | |
1902 | * for avoiding the race with trigger callback. | |
1903 | * If the state is unset and a trigger is pending while the previous operation, | |
1904 | * process the pending trigger action here. | |
1905 | */ | |
1906 | static void dpcm_set_fe_update_state(struct snd_soc_pcm_runtime *fe, | |
1907 | int stream, enum snd_soc_dpcm_update state) | |
1908 | { | |
1909 | struct snd_pcm_substream *substream = | |
1910 | snd_soc_dpcm_get_substream(fe, stream); | |
1911 | ||
1912 | snd_pcm_stream_lock_irq(substream); | |
1913 | if (state == SND_SOC_DPCM_UPDATE_NO && fe->dpcm[stream].trigger_pending) { | |
1914 | dpcm_fe_dai_do_trigger(substream, | |
1915 | fe->dpcm[stream].trigger_pending - 1); | |
1916 | fe->dpcm[stream].trigger_pending = 0; | |
1917 | } | |
1918 | fe->dpcm[stream].runtime_update = state; | |
1919 | snd_pcm_stream_unlock_irq(substream); | |
1920 | } | |
1921 | ||
906c7d69 PL |
1922 | static int dpcm_apply_symmetry(struct snd_pcm_substream *fe_substream, |
1923 | int stream) | |
1924 | { | |
1925 | struct snd_soc_dpcm *dpcm; | |
1926 | struct snd_soc_pcm_runtime *fe = fe_substream->private_data; | |
1927 | struct snd_soc_dai *fe_cpu_dai = fe->cpu_dai; | |
1928 | int err; | |
1929 | ||
1930 | /* apply symmetry for FE */ | |
1931 | if (soc_pcm_has_symmetry(fe_substream)) | |
1932 | fe_substream->runtime->hw.info |= SNDRV_PCM_INFO_JOINT_DUPLEX; | |
1933 | ||
1934 | /* Symmetry only applies if we've got an active stream. */ | |
1935 | if (fe_cpu_dai->active) { | |
1936 | err = soc_pcm_apply_symmetry(fe_substream, fe_cpu_dai); | |
1937 | if (err < 0) | |
1938 | return err; | |
1939 | } | |
1940 | ||
1941 | /* apply symmetry for BE */ | |
8d6258a4 | 1942 | for_each_dpcm_be(fe, stream, dpcm) { |
906c7d69 PL |
1943 | struct snd_soc_pcm_runtime *be = dpcm->be; |
1944 | struct snd_pcm_substream *be_substream = | |
1945 | snd_soc_dpcm_get_substream(be, stream); | |
6246f283 | 1946 | struct snd_soc_pcm_runtime *rtd; |
0b7990e3 | 1947 | struct snd_soc_dai *codec_dai; |
906c7d69 PL |
1948 | int i; |
1949 | ||
6246f283 JB |
1950 | /* A backend may not have the requested substream */ |
1951 | if (!be_substream) | |
1952 | continue; | |
1953 | ||
1954 | rtd = be_substream->private_data; | |
f1176614 JK |
1955 | if (rtd->dai_link->be_hw_params_fixup) |
1956 | continue; | |
1957 | ||
906c7d69 PL |
1958 | if (soc_pcm_has_symmetry(be_substream)) |
1959 | be_substream->runtime->hw.info |= SNDRV_PCM_INFO_JOINT_DUPLEX; | |
1960 | ||
1961 | /* Symmetry only applies if we've got an active stream. */ | |
1962 | if (rtd->cpu_dai->active) { | |
99bcedbd KCC |
1963 | err = soc_pcm_apply_symmetry(fe_substream, |
1964 | rtd->cpu_dai); | |
906c7d69 PL |
1965 | if (err < 0) |
1966 | return err; | |
1967 | } | |
1968 | ||
0b7990e3 KM |
1969 | for_each_rtd_codec_dai(rtd, i, codec_dai) { |
1970 | if (codec_dai->active) { | |
99bcedbd | 1971 | err = soc_pcm_apply_symmetry(fe_substream, |
0b7990e3 | 1972 | codec_dai); |
906c7d69 PL |
1973 | if (err < 0) |
1974 | return err; | |
1975 | } | |
1976 | } | |
1977 | } | |
1978 | ||
1979 | return 0; | |
1980 | } | |
1981 | ||
01d7584c LG |
1982 | static int dpcm_fe_dai_startup(struct snd_pcm_substream *fe_substream) |
1983 | { | |
1984 | struct snd_soc_pcm_runtime *fe = fe_substream->private_data; | |
1985 | struct snd_pcm_runtime *runtime = fe_substream->runtime; | |
1986 | int stream = fe_substream->stream, ret = 0; | |
1987 | ||
ea9d0d77 | 1988 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_FE); |
01d7584c LG |
1989 | |
1990 | ret = dpcm_be_dai_startup(fe, fe_substream->stream); | |
1991 | if (ret < 0) { | |
103d84a3 | 1992 | dev_err(fe->dev,"ASoC: failed to start some BEs %d\n", ret); |
01d7584c LG |
1993 | goto be_err; |
1994 | } | |
1995 | ||
103d84a3 | 1996 | dev_dbg(fe->dev, "ASoC: open FE %s\n", fe->dai_link->name); |
01d7584c LG |
1997 | |
1998 | /* start the DAI frontend */ | |
1999 | ret = soc_pcm_open(fe_substream); | |
2000 | if (ret < 0) { | |
103d84a3 | 2001 | dev_err(fe->dev,"ASoC: failed to start FE %d\n", ret); |
01d7584c LG |
2002 | goto unwind; |
2003 | } | |
2004 | ||
2005 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_OPEN; | |
2006 | ||
2007 | dpcm_set_fe_runtime(fe_substream); | |
2008 | snd_pcm_limit_hw_rates(runtime); | |
2009 | ||
906c7d69 PL |
2010 | ret = dpcm_apply_symmetry(fe_substream, stream); |
2011 | if (ret < 0) { | |
2012 | dev_err(fe->dev, "ASoC: failed to apply dpcm symmetry %d\n", | |
2013 | ret); | |
2014 | goto unwind; | |
2015 | } | |
2016 | ||
ea9d0d77 | 2017 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_NO); |
01d7584c LG |
2018 | return 0; |
2019 | ||
2020 | unwind: | |
2021 | dpcm_be_dai_startup_unwind(fe, fe_substream->stream); | |
2022 | be_err: | |
ea9d0d77 | 2023 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_NO); |
01d7584c LG |
2024 | return ret; |
2025 | } | |
2026 | ||
23607025 | 2027 | int dpcm_be_dai_shutdown(struct snd_soc_pcm_runtime *fe, int stream) |
01d7584c LG |
2028 | { |
2029 | struct snd_soc_dpcm *dpcm; | |
2030 | ||
2031 | /* only shutdown BEs that are either sinks or sources to this FE DAI */ | |
8d6258a4 | 2032 | for_each_dpcm_be(fe, stream, dpcm) { |
01d7584c LG |
2033 | |
2034 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
2035 | struct snd_pcm_substream *be_substream = | |
2036 | snd_soc_dpcm_get_substream(be, stream); | |
2037 | ||
2038 | /* is this op for this BE ? */ | |
2039 | if (!snd_soc_dpcm_be_can_update(fe, be, stream)) | |
2040 | continue; | |
2041 | ||
2042 | if (be->dpcm[stream].users == 0) | |
103d84a3 | 2043 | dev_err(be->dev, "ASoC: no users %s at close - state %d\n", |
01d7584c LG |
2044 | stream ? "capture" : "playback", |
2045 | be->dpcm[stream].state); | |
2046 | ||
2047 | if (--be->dpcm[stream].users != 0) | |
2048 | continue; | |
2049 | ||
2050 | if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_FREE) && | |
9c0ac70a KCC |
2051 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_OPEN)) { |
2052 | soc_pcm_hw_free(be_substream); | |
2053 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_HW_FREE; | |
2054 | } | |
01d7584c | 2055 | |
103d84a3 | 2056 | dev_dbg(be->dev, "ASoC: close BE %s\n", |
94d215cc | 2057 | be->dai_link->name); |
01d7584c LG |
2058 | |
2059 | soc_pcm_close(be_substream); | |
2060 | be_substream->runtime = NULL; | |
2061 | ||
2062 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_CLOSE; | |
2063 | } | |
2064 | return 0; | |
2065 | } | |
2066 | ||
2067 | static int dpcm_fe_dai_shutdown(struct snd_pcm_substream *substream) | |
2068 | { | |
2069 | struct snd_soc_pcm_runtime *fe = substream->private_data; | |
2070 | int stream = substream->stream; | |
2071 | ||
ea9d0d77 | 2072 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_FE); |
01d7584c LG |
2073 | |
2074 | /* shutdown the BEs */ | |
2075 | dpcm_be_dai_shutdown(fe, substream->stream); | |
2076 | ||
103d84a3 | 2077 | dev_dbg(fe->dev, "ASoC: close FE %s\n", fe->dai_link->name); |
01d7584c LG |
2078 | |
2079 | /* now shutdown the frontend */ | |
2080 | soc_pcm_close(substream); | |
2081 | ||
2082 | /* run the stream event for each BE */ | |
2083 | dpcm_dapm_stream_event(fe, stream, SND_SOC_DAPM_STREAM_STOP); | |
2084 | ||
2085 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_CLOSE; | |
ea9d0d77 | 2086 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_NO); |
01d7584c LG |
2087 | return 0; |
2088 | } | |
2089 | ||
23607025 | 2090 | int dpcm_be_dai_hw_free(struct snd_soc_pcm_runtime *fe, int stream) |
01d7584c LG |
2091 | { |
2092 | struct snd_soc_dpcm *dpcm; | |
2093 | ||
2094 | /* only hw_params backends that are either sinks or sources | |
2095 | * to this frontend DAI */ | |
8d6258a4 | 2096 | for_each_dpcm_be(fe, stream, dpcm) { |
01d7584c LG |
2097 | |
2098 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
2099 | struct snd_pcm_substream *be_substream = | |
2100 | snd_soc_dpcm_get_substream(be, stream); | |
2101 | ||
2102 | /* is this op for this BE ? */ | |
2103 | if (!snd_soc_dpcm_be_can_update(fe, be, stream)) | |
2104 | continue; | |
2105 | ||
2106 | /* only free hw when no longer used - check all FEs */ | |
2107 | if (!snd_soc_dpcm_can_be_free_stop(fe, be, stream)) | |
2108 | continue; | |
2109 | ||
36fba62c QZ |
2110 | /* do not free hw if this BE is used by other FE */ |
2111 | if (be->dpcm[stream].users > 1) | |
2112 | continue; | |
2113 | ||
01d7584c LG |
2114 | if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_PARAMS) && |
2115 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_PREPARE) && | |
2116 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_FREE) && | |
08b27848 | 2117 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_PAUSED) && |
5e82d2be VK |
2118 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_STOP) && |
2119 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_SUSPEND)) | |
01d7584c LG |
2120 | continue; |
2121 | ||
103d84a3 | 2122 | dev_dbg(be->dev, "ASoC: hw_free BE %s\n", |
94d215cc | 2123 | be->dai_link->name); |
01d7584c LG |
2124 | |
2125 | soc_pcm_hw_free(be_substream); | |
2126 | ||
2127 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_HW_FREE; | |
2128 | } | |
2129 | ||
2130 | return 0; | |
2131 | } | |
2132 | ||
45c0a188 | 2133 | static int dpcm_fe_dai_hw_free(struct snd_pcm_substream *substream) |
01d7584c LG |
2134 | { |
2135 | struct snd_soc_pcm_runtime *fe = substream->private_data; | |
2136 | int err, stream = substream->stream; | |
2137 | ||
2138 | mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME); | |
ea9d0d77 | 2139 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_FE); |
01d7584c | 2140 | |
103d84a3 | 2141 | dev_dbg(fe->dev, "ASoC: hw_free FE %s\n", fe->dai_link->name); |
01d7584c LG |
2142 | |
2143 | /* call hw_free on the frontend */ | |
2144 | err = soc_pcm_hw_free(substream); | |
2145 | if (err < 0) | |
103d84a3 | 2146 | dev_err(fe->dev,"ASoC: hw_free FE %s failed\n", |
01d7584c LG |
2147 | fe->dai_link->name); |
2148 | ||
2149 | /* only hw_params backends that are either sinks or sources | |
2150 | * to this frontend DAI */ | |
2151 | err = dpcm_be_dai_hw_free(fe, stream); | |
2152 | ||
2153 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_HW_FREE; | |
ea9d0d77 | 2154 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_NO); |
01d7584c LG |
2155 | |
2156 | mutex_unlock(&fe->card->mutex); | |
2157 | return 0; | |
2158 | } | |
2159 | ||
23607025 | 2160 | int dpcm_be_dai_hw_params(struct snd_soc_pcm_runtime *fe, int stream) |
01d7584c LG |
2161 | { |
2162 | struct snd_soc_dpcm *dpcm; | |
2163 | int ret; | |
2164 | ||
8d6258a4 | 2165 | for_each_dpcm_be(fe, stream, dpcm) { |
01d7584c LG |
2166 | |
2167 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
2168 | struct snd_pcm_substream *be_substream = | |
2169 | snd_soc_dpcm_get_substream(be, stream); | |
2170 | ||
2171 | /* is this op for this BE ? */ | |
2172 | if (!snd_soc_dpcm_be_can_update(fe, be, stream)) | |
2173 | continue; | |
2174 | ||
01d7584c LG |
2175 | /* copy params for each dpcm */ |
2176 | memcpy(&dpcm->hw_params, &fe->dpcm[stream].hw_params, | |
2177 | sizeof(struct snd_pcm_hw_params)); | |
2178 | ||
2179 | /* perform any hw_params fixups */ | |
2180 | if (be->dai_link->be_hw_params_fixup) { | |
2181 | ret = be->dai_link->be_hw_params_fixup(be, | |
2182 | &dpcm->hw_params); | |
2183 | if (ret < 0) { | |
2184 | dev_err(be->dev, | |
103d84a3 | 2185 | "ASoC: hw_params BE fixup failed %d\n", |
01d7584c LG |
2186 | ret); |
2187 | goto unwind; | |
2188 | } | |
2189 | } | |
2190 | ||
ae061d2a LY |
2191 | /* copy the fixed-up hw params for BE dai */ |
2192 | memcpy(&be->dpcm[stream].hw_params, &dpcm->hw_params, | |
2193 | sizeof(struct snd_pcm_hw_params)); | |
2194 | ||
b0639bd2 KM |
2195 | /* only allow hw_params() if no connected FEs are running */ |
2196 | if (!snd_soc_dpcm_can_be_params(fe, be, stream)) | |
2197 | continue; | |
2198 | ||
2199 | if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_OPEN) && | |
2200 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_PARAMS) && | |
2201 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_FREE)) | |
2202 | continue; | |
2203 | ||
2204 | dev_dbg(be->dev, "ASoC: hw_params BE %s\n", | |
94d215cc | 2205 | be->dai_link->name); |
b0639bd2 | 2206 | |
01d7584c LG |
2207 | ret = soc_pcm_hw_params(be_substream, &dpcm->hw_params); |
2208 | if (ret < 0) { | |
2209 | dev_err(dpcm->be->dev, | |
103d84a3 | 2210 | "ASoC: hw_params BE failed %d\n", ret); |
01d7584c LG |
2211 | goto unwind; |
2212 | } | |
2213 | ||
2214 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_HW_PARAMS; | |
2215 | } | |
2216 | return 0; | |
2217 | ||
2218 | unwind: | |
2219 | /* disable any enabled and non active backends */ | |
8d6258a4 | 2220 | for_each_dpcm_be_rollback(fe, stream, dpcm) { |
01d7584c LG |
2221 | struct snd_soc_pcm_runtime *be = dpcm->be; |
2222 | struct snd_pcm_substream *be_substream = | |
2223 | snd_soc_dpcm_get_substream(be, stream); | |
2224 | ||
2225 | if (!snd_soc_dpcm_be_can_update(fe, be, stream)) | |
2226 | continue; | |
2227 | ||
2228 | /* only allow hw_free() if no connected FEs are running */ | |
2229 | if (!snd_soc_dpcm_can_be_free_stop(fe, be, stream)) | |
2230 | continue; | |
2231 | ||
2232 | if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_OPEN) && | |
2233 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_PARAMS) && | |
2234 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_FREE) && | |
2235 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_STOP)) | |
2236 | continue; | |
2237 | ||
2238 | soc_pcm_hw_free(be_substream); | |
2239 | } | |
2240 | ||
2241 | return ret; | |
2242 | } | |
2243 | ||
45c0a188 MB |
2244 | static int dpcm_fe_dai_hw_params(struct snd_pcm_substream *substream, |
2245 | struct snd_pcm_hw_params *params) | |
01d7584c LG |
2246 | { |
2247 | struct snd_soc_pcm_runtime *fe = substream->private_data; | |
2248 | int ret, stream = substream->stream; | |
2249 | ||
2250 | mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME); | |
ea9d0d77 | 2251 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_FE); |
01d7584c LG |
2252 | |
2253 | memcpy(&fe->dpcm[substream->stream].hw_params, params, | |
2254 | sizeof(struct snd_pcm_hw_params)); | |
2255 | ret = dpcm_be_dai_hw_params(fe, substream->stream); | |
2256 | if (ret < 0) { | |
103d84a3 | 2257 | dev_err(fe->dev,"ASoC: hw_params BE failed %d\n", ret); |
01d7584c LG |
2258 | goto out; |
2259 | } | |
2260 | ||
103d84a3 | 2261 | dev_dbg(fe->dev, "ASoC: hw_params FE %s rate %d chan %x fmt %d\n", |
01d7584c LG |
2262 | fe->dai_link->name, params_rate(params), |
2263 | params_channels(params), params_format(params)); | |
2264 | ||
2265 | /* call hw_params on the frontend */ | |
2266 | ret = soc_pcm_hw_params(substream, params); | |
2267 | if (ret < 0) { | |
103d84a3 | 2268 | dev_err(fe->dev,"ASoC: hw_params FE failed %d\n", ret); |
01d7584c LG |
2269 | dpcm_be_dai_hw_free(fe, stream); |
2270 | } else | |
2271 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_HW_PARAMS; | |
2272 | ||
2273 | out: | |
ea9d0d77 | 2274 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_NO); |
01d7584c LG |
2275 | mutex_unlock(&fe->card->mutex); |
2276 | return ret; | |
2277 | } | |
2278 | ||
2279 | static int dpcm_do_trigger(struct snd_soc_dpcm *dpcm, | |
2280 | struct snd_pcm_substream *substream, int cmd) | |
2281 | { | |
2282 | int ret; | |
2283 | ||
103d84a3 | 2284 | dev_dbg(dpcm->be->dev, "ASoC: trigger BE %s cmd %d\n", |
94d215cc | 2285 | dpcm->be->dai_link->name, cmd); |
01d7584c LG |
2286 | |
2287 | ret = soc_pcm_trigger(substream, cmd); | |
2288 | if (ret < 0) | |
103d84a3 | 2289 | dev_err(dpcm->be->dev,"ASoC: trigger BE failed %d\n", ret); |
01d7584c LG |
2290 | |
2291 | return ret; | |
2292 | } | |
2293 | ||
23607025 | 2294 | int dpcm_be_dai_trigger(struct snd_soc_pcm_runtime *fe, int stream, |
45c0a188 | 2295 | int cmd) |
01d7584c LG |
2296 | { |
2297 | struct snd_soc_dpcm *dpcm; | |
2298 | int ret = 0; | |
2299 | ||
8d6258a4 | 2300 | for_each_dpcm_be(fe, stream, dpcm) { |
01d7584c LG |
2301 | |
2302 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
2303 | struct snd_pcm_substream *be_substream = | |
2304 | snd_soc_dpcm_get_substream(be, stream); | |
2305 | ||
2306 | /* is this op for this BE ? */ | |
2307 | if (!snd_soc_dpcm_be_can_update(fe, be, stream)) | |
2308 | continue; | |
2309 | ||
2310 | switch (cmd) { | |
2311 | case SNDRV_PCM_TRIGGER_START: | |
2312 | if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_PREPARE) && | |
2313 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_STOP)) | |
2314 | continue; | |
2315 | ||
2316 | ret = dpcm_do_trigger(dpcm, be_substream, cmd); | |
2317 | if (ret) | |
2318 | return ret; | |
2319 | ||
2320 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_START; | |
2321 | break; | |
2322 | case SNDRV_PCM_TRIGGER_RESUME: | |
2323 | if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_SUSPEND)) | |
2324 | continue; | |
2325 | ||
2326 | ret = dpcm_do_trigger(dpcm, be_substream, cmd); | |
2327 | if (ret) | |
2328 | return ret; | |
2329 | ||
2330 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_START; | |
2331 | break; | |
2332 | case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: | |
2333 | if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_PAUSED)) | |
2334 | continue; | |
2335 | ||
2336 | ret = dpcm_do_trigger(dpcm, be_substream, cmd); | |
2337 | if (ret) | |
2338 | return ret; | |
2339 | ||
2340 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_START; | |
2341 | break; | |
2342 | case SNDRV_PCM_TRIGGER_STOP: | |
2343 | if (be->dpcm[stream].state != SND_SOC_DPCM_STATE_START) | |
2344 | continue; | |
2345 | ||
2346 | if (!snd_soc_dpcm_can_be_free_stop(fe, be, stream)) | |
2347 | continue; | |
2348 | ||
2349 | ret = dpcm_do_trigger(dpcm, be_substream, cmd); | |
2350 | if (ret) | |
2351 | return ret; | |
2352 | ||
2353 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_STOP; | |
2354 | break; | |
2355 | case SNDRV_PCM_TRIGGER_SUSPEND: | |
868a6ca8 | 2356 | if (be->dpcm[stream].state != SND_SOC_DPCM_STATE_START) |
01d7584c LG |
2357 | continue; |
2358 | ||
2359 | if (!snd_soc_dpcm_can_be_free_stop(fe, be, stream)) | |
2360 | continue; | |
2361 | ||
2362 | ret = dpcm_do_trigger(dpcm, be_substream, cmd); | |
2363 | if (ret) | |
2364 | return ret; | |
2365 | ||
2366 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_SUSPEND; | |
2367 | break; | |
2368 | case SNDRV_PCM_TRIGGER_PAUSE_PUSH: | |
2369 | if (be->dpcm[stream].state != SND_SOC_DPCM_STATE_START) | |
2370 | continue; | |
2371 | ||
2372 | if (!snd_soc_dpcm_can_be_free_stop(fe, be, stream)) | |
2373 | continue; | |
2374 | ||
2375 | ret = dpcm_do_trigger(dpcm, be_substream, cmd); | |
2376 | if (ret) | |
2377 | return ret; | |
2378 | ||
2379 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_PAUSED; | |
2380 | break; | |
2381 | } | |
2382 | } | |
2383 | ||
2384 | return ret; | |
2385 | } | |
2386 | EXPORT_SYMBOL_GPL(dpcm_be_dai_trigger); | |
2387 | ||
ea9d0d77 | 2388 | static int dpcm_fe_dai_do_trigger(struct snd_pcm_substream *substream, int cmd) |
01d7584c LG |
2389 | { |
2390 | struct snd_soc_pcm_runtime *fe = substream->private_data; | |
2391 | int stream = substream->stream, ret; | |
2392 | enum snd_soc_dpcm_trigger trigger = fe->dai_link->trigger[stream]; | |
2393 | ||
2394 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_FE; | |
2395 | ||
2396 | switch (trigger) { | |
2397 | case SND_SOC_DPCM_TRIGGER_PRE: | |
2398 | /* call trigger on the frontend before the backend. */ | |
2399 | ||
103d84a3 | 2400 | dev_dbg(fe->dev, "ASoC: pre trigger FE %s cmd %d\n", |
01d7584c LG |
2401 | fe->dai_link->name, cmd); |
2402 | ||
2403 | ret = soc_pcm_trigger(substream, cmd); | |
2404 | if (ret < 0) { | |
103d84a3 | 2405 | dev_err(fe->dev,"ASoC: trigger FE failed %d\n", ret); |
01d7584c LG |
2406 | goto out; |
2407 | } | |
2408 | ||
2409 | ret = dpcm_be_dai_trigger(fe, substream->stream, cmd); | |
2410 | break; | |
2411 | case SND_SOC_DPCM_TRIGGER_POST: | |
2412 | /* call trigger on the frontend after the backend. */ | |
2413 | ||
2414 | ret = dpcm_be_dai_trigger(fe, substream->stream, cmd); | |
2415 | if (ret < 0) { | |
103d84a3 | 2416 | dev_err(fe->dev,"ASoC: trigger FE failed %d\n", ret); |
01d7584c LG |
2417 | goto out; |
2418 | } | |
2419 | ||
103d84a3 | 2420 | dev_dbg(fe->dev, "ASoC: post trigger FE %s cmd %d\n", |
01d7584c LG |
2421 | fe->dai_link->name, cmd); |
2422 | ||
2423 | ret = soc_pcm_trigger(substream, cmd); | |
2424 | break; | |
07bf84aa LG |
2425 | case SND_SOC_DPCM_TRIGGER_BESPOKE: |
2426 | /* bespoke trigger() - handles both FE and BEs */ | |
2427 | ||
103d84a3 | 2428 | dev_dbg(fe->dev, "ASoC: bespoke trigger FE %s cmd %d\n", |
07bf84aa LG |
2429 | fe->dai_link->name, cmd); |
2430 | ||
2431 | ret = soc_pcm_bespoke_trigger(substream, cmd); | |
2432 | if (ret < 0) { | |
103d84a3 | 2433 | dev_err(fe->dev,"ASoC: trigger FE failed %d\n", ret); |
07bf84aa LG |
2434 | goto out; |
2435 | } | |
2436 | break; | |
01d7584c | 2437 | default: |
103d84a3 | 2438 | dev_err(fe->dev, "ASoC: invalid trigger cmd %d for %s\n", cmd, |
01d7584c LG |
2439 | fe->dai_link->name); |
2440 | ret = -EINVAL; | |
2441 | goto out; | |
2442 | } | |
2443 | ||
2444 | switch (cmd) { | |
2445 | case SNDRV_PCM_TRIGGER_START: | |
2446 | case SNDRV_PCM_TRIGGER_RESUME: | |
2447 | case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: | |
2448 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_START; | |
2449 | break; | |
2450 | case SNDRV_PCM_TRIGGER_STOP: | |
2451 | case SNDRV_PCM_TRIGGER_SUSPEND: | |
01d7584c LG |
2452 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_STOP; |
2453 | break; | |
9f169b9f PL |
2454 | case SNDRV_PCM_TRIGGER_PAUSE_PUSH: |
2455 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_PAUSED; | |
2456 | break; | |
01d7584c LG |
2457 | } |
2458 | ||
2459 | out: | |
2460 | fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO; | |
2461 | return ret; | |
2462 | } | |
2463 | ||
ea9d0d77 TI |
2464 | static int dpcm_fe_dai_trigger(struct snd_pcm_substream *substream, int cmd) |
2465 | { | |
2466 | struct snd_soc_pcm_runtime *fe = substream->private_data; | |
2467 | int stream = substream->stream; | |
2468 | ||
2469 | /* if FE's runtime_update is already set, we're in race; | |
2470 | * process this trigger later at exit | |
2471 | */ | |
2472 | if (fe->dpcm[stream].runtime_update != SND_SOC_DPCM_UPDATE_NO) { | |
2473 | fe->dpcm[stream].trigger_pending = cmd + 1; | |
2474 | return 0; /* delayed, assuming it's successful */ | |
2475 | } | |
2476 | ||
2477 | /* we're alone, let's trigger */ | |
2478 | return dpcm_fe_dai_do_trigger(substream, cmd); | |
2479 | } | |
2480 | ||
23607025 | 2481 | int dpcm_be_dai_prepare(struct snd_soc_pcm_runtime *fe, int stream) |
01d7584c LG |
2482 | { |
2483 | struct snd_soc_dpcm *dpcm; | |
2484 | int ret = 0; | |
2485 | ||
8d6258a4 | 2486 | for_each_dpcm_be(fe, stream, dpcm) { |
01d7584c LG |
2487 | |
2488 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
2489 | struct snd_pcm_substream *be_substream = | |
2490 | snd_soc_dpcm_get_substream(be, stream); | |
2491 | ||
2492 | /* is this op for this BE ? */ | |
2493 | if (!snd_soc_dpcm_be_can_update(fe, be, stream)) | |
2494 | continue; | |
2495 | ||
2496 | if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_PARAMS) && | |
95f444dc | 2497 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_STOP) && |
5087a8f1 LY |
2498 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_SUSPEND) && |
2499 | (be->dpcm[stream].state != SND_SOC_DPCM_STATE_PAUSED)) | |
01d7584c LG |
2500 | continue; |
2501 | ||
103d84a3 | 2502 | dev_dbg(be->dev, "ASoC: prepare BE %s\n", |
94d215cc | 2503 | be->dai_link->name); |
01d7584c LG |
2504 | |
2505 | ret = soc_pcm_prepare(be_substream); | |
2506 | if (ret < 0) { | |
103d84a3 | 2507 | dev_err(be->dev, "ASoC: backend prepare failed %d\n", |
01d7584c LG |
2508 | ret); |
2509 | break; | |
2510 | } | |
2511 | ||
2512 | be->dpcm[stream].state = SND_SOC_DPCM_STATE_PREPARE; | |
2513 | } | |
2514 | return ret; | |
2515 | } | |
2516 | ||
45c0a188 | 2517 | static int dpcm_fe_dai_prepare(struct snd_pcm_substream *substream) |
01d7584c LG |
2518 | { |
2519 | struct snd_soc_pcm_runtime *fe = substream->private_data; | |
2520 | int stream = substream->stream, ret = 0; | |
2521 | ||
2522 | mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME); | |
2523 | ||
103d84a3 | 2524 | dev_dbg(fe->dev, "ASoC: prepare FE %s\n", fe->dai_link->name); |
01d7584c | 2525 | |
ea9d0d77 | 2526 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_FE); |
01d7584c LG |
2527 | |
2528 | /* there is no point preparing this FE if there are no BEs */ | |
2529 | if (list_empty(&fe->dpcm[stream].be_clients)) { | |
103d84a3 | 2530 | dev_err(fe->dev, "ASoC: no backend DAIs enabled for %s\n", |
01d7584c LG |
2531 | fe->dai_link->name); |
2532 | ret = -EINVAL; | |
2533 | goto out; | |
2534 | } | |
2535 | ||
2536 | ret = dpcm_be_dai_prepare(fe, substream->stream); | |
2537 | if (ret < 0) | |
2538 | goto out; | |
2539 | ||
2540 | /* call prepare on the frontend */ | |
2541 | ret = soc_pcm_prepare(substream); | |
2542 | if (ret < 0) { | |
103d84a3 | 2543 | dev_err(fe->dev,"ASoC: prepare FE %s failed\n", |
01d7584c LG |
2544 | fe->dai_link->name); |
2545 | goto out; | |
2546 | } | |
2547 | ||
2548 | /* run the stream event for each BE */ | |
2549 | dpcm_dapm_stream_event(fe, stream, SND_SOC_DAPM_STREAM_START); | |
2550 | fe->dpcm[stream].state = SND_SOC_DPCM_STATE_PREPARE; | |
2551 | ||
2552 | out: | |
ea9d0d77 | 2553 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_NO); |
01d7584c LG |
2554 | mutex_unlock(&fe->card->mutex); |
2555 | ||
2556 | return ret; | |
2557 | } | |
2558 | ||
be3f3f2c LG |
2559 | static int soc_pcm_ioctl(struct snd_pcm_substream *substream, |
2560 | unsigned int cmd, void *arg) | |
2561 | { | |
2562 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
b8135864 KM |
2563 | struct snd_soc_component *component; |
2564 | struct snd_soc_rtdcom_list *rtdcom; | |
be3f3f2c | 2565 | |
b8135864 KM |
2566 | for_each_rtdcom(rtd, rtdcom) { |
2567 | component = rtdcom->component; | |
2568 | ||
b8135864 KM |
2569 | if (!component->driver->ops || |
2570 | !component->driver->ops->ioctl) | |
2571 | continue; | |
2572 | ||
2573 | /* FIXME: use 1st ioctl */ | |
2574 | return component->driver->ops->ioctl(substream, cmd, arg); | |
2575 | } | |
2576 | ||
be3f3f2c LG |
2577 | return snd_pcm_lib_ioctl(substream, cmd, arg); |
2578 | } | |
2579 | ||
618dae11 LG |
2580 | static int dpcm_run_update_shutdown(struct snd_soc_pcm_runtime *fe, int stream) |
2581 | { | |
07bf84aa LG |
2582 | struct snd_pcm_substream *substream = |
2583 | snd_soc_dpcm_get_substream(fe, stream); | |
2584 | enum snd_soc_dpcm_trigger trigger = fe->dai_link->trigger[stream]; | |
618dae11 LG |
2585 | int err; |
2586 | ||
103d84a3 | 2587 | dev_dbg(fe->dev, "ASoC: runtime %s close on FE %s\n", |
618dae11 LG |
2588 | stream ? "capture" : "playback", fe->dai_link->name); |
2589 | ||
07bf84aa LG |
2590 | if (trigger == SND_SOC_DPCM_TRIGGER_BESPOKE) { |
2591 | /* call bespoke trigger - FE takes care of all BE triggers */ | |
103d84a3 | 2592 | dev_dbg(fe->dev, "ASoC: bespoke trigger FE %s cmd stop\n", |
07bf84aa LG |
2593 | fe->dai_link->name); |
2594 | ||
2595 | err = soc_pcm_bespoke_trigger(substream, SNDRV_PCM_TRIGGER_STOP); | |
2596 | if (err < 0) | |
103d84a3 | 2597 | dev_err(fe->dev,"ASoC: trigger FE failed %d\n", err); |
07bf84aa | 2598 | } else { |
103d84a3 | 2599 | dev_dbg(fe->dev, "ASoC: trigger FE %s cmd stop\n", |
07bf84aa LG |
2600 | fe->dai_link->name); |
2601 | ||
2602 | err = dpcm_be_dai_trigger(fe, stream, SNDRV_PCM_TRIGGER_STOP); | |
2603 | if (err < 0) | |
103d84a3 | 2604 | dev_err(fe->dev,"ASoC: trigger FE failed %d\n", err); |
07bf84aa | 2605 | } |
618dae11 LG |
2606 | |
2607 | err = dpcm_be_dai_hw_free(fe, stream); | |
2608 | if (err < 0) | |
103d84a3 | 2609 | dev_err(fe->dev,"ASoC: hw_free FE failed %d\n", err); |
618dae11 LG |
2610 | |
2611 | err = dpcm_be_dai_shutdown(fe, stream); | |
2612 | if (err < 0) | |
103d84a3 | 2613 | dev_err(fe->dev,"ASoC: shutdown FE failed %d\n", err); |
618dae11 LG |
2614 | |
2615 | /* run the stream event for each BE */ | |
2616 | dpcm_dapm_stream_event(fe, stream, SND_SOC_DAPM_STREAM_NOP); | |
2617 | ||
2618 | return 0; | |
2619 | } | |
2620 | ||
2621 | static int dpcm_run_update_startup(struct snd_soc_pcm_runtime *fe, int stream) | |
2622 | { | |
07bf84aa LG |
2623 | struct snd_pcm_substream *substream = |
2624 | snd_soc_dpcm_get_substream(fe, stream); | |
618dae11 | 2625 | struct snd_soc_dpcm *dpcm; |
07bf84aa | 2626 | enum snd_soc_dpcm_trigger trigger = fe->dai_link->trigger[stream]; |
618dae11 | 2627 | int ret; |
a9764869 | 2628 | unsigned long flags; |
618dae11 | 2629 | |
103d84a3 | 2630 | dev_dbg(fe->dev, "ASoC: runtime %s open on FE %s\n", |
618dae11 LG |
2631 | stream ? "capture" : "playback", fe->dai_link->name); |
2632 | ||
2633 | /* Only start the BE if the FE is ready */ | |
2634 | if (fe->dpcm[stream].state == SND_SOC_DPCM_STATE_HW_FREE || | |
2635 | fe->dpcm[stream].state == SND_SOC_DPCM_STATE_CLOSE) | |
2636 | return -EINVAL; | |
2637 | ||
2638 | /* startup must always be called for new BEs */ | |
2639 | ret = dpcm_be_dai_startup(fe, stream); | |
fffc0ca2 | 2640 | if (ret < 0) |
618dae11 | 2641 | goto disconnect; |
618dae11 LG |
2642 | |
2643 | /* keep going if FE state is > open */ | |
2644 | if (fe->dpcm[stream].state == SND_SOC_DPCM_STATE_OPEN) | |
2645 | return 0; | |
01d7584c | 2646 | |
618dae11 | 2647 | ret = dpcm_be_dai_hw_params(fe, stream); |
fffc0ca2 | 2648 | if (ret < 0) |
618dae11 | 2649 | goto close; |
618dae11 LG |
2650 | |
2651 | /* keep going if FE state is > hw_params */ | |
2652 | if (fe->dpcm[stream].state == SND_SOC_DPCM_STATE_HW_PARAMS) | |
2653 | return 0; | |
2654 | ||
2655 | ||
2656 | ret = dpcm_be_dai_prepare(fe, stream); | |
fffc0ca2 | 2657 | if (ret < 0) |
618dae11 | 2658 | goto hw_free; |
618dae11 LG |
2659 | |
2660 | /* run the stream event for each BE */ | |
2661 | dpcm_dapm_stream_event(fe, stream, SND_SOC_DAPM_STREAM_NOP); | |
2662 | ||
2663 | /* keep going if FE state is > prepare */ | |
2664 | if (fe->dpcm[stream].state == SND_SOC_DPCM_STATE_PREPARE || | |
2665 | fe->dpcm[stream].state == SND_SOC_DPCM_STATE_STOP) | |
2666 | return 0; | |
2667 | ||
07bf84aa LG |
2668 | if (trigger == SND_SOC_DPCM_TRIGGER_BESPOKE) { |
2669 | /* call trigger on the frontend - FE takes care of all BE triggers */ | |
103d84a3 | 2670 | dev_dbg(fe->dev, "ASoC: bespoke trigger FE %s cmd start\n", |
07bf84aa | 2671 | fe->dai_link->name); |
618dae11 | 2672 | |
07bf84aa LG |
2673 | ret = soc_pcm_bespoke_trigger(substream, SNDRV_PCM_TRIGGER_START); |
2674 | if (ret < 0) { | |
103d84a3 | 2675 | dev_err(fe->dev,"ASoC: bespoke trigger FE failed %d\n", ret); |
07bf84aa LG |
2676 | goto hw_free; |
2677 | } | |
2678 | } else { | |
103d84a3 | 2679 | dev_dbg(fe->dev, "ASoC: trigger FE %s cmd start\n", |
07bf84aa LG |
2680 | fe->dai_link->name); |
2681 | ||
2682 | ret = dpcm_be_dai_trigger(fe, stream, | |
2683 | SNDRV_PCM_TRIGGER_START); | |
2684 | if (ret < 0) { | |
103d84a3 | 2685 | dev_err(fe->dev,"ASoC: trigger FE failed %d\n", ret); |
07bf84aa LG |
2686 | goto hw_free; |
2687 | } | |
618dae11 LG |
2688 | } |
2689 | ||
2690 | return 0; | |
2691 | ||
2692 | hw_free: | |
2693 | dpcm_be_dai_hw_free(fe, stream); | |
2694 | close: | |
2695 | dpcm_be_dai_shutdown(fe, stream); | |
2696 | disconnect: | |
2697 | /* disconnect any non started BEs */ | |
a9764869 | 2698 | spin_lock_irqsave(&fe->card->dpcm_lock, flags); |
8d6258a4 | 2699 | for_each_dpcm_be(fe, stream, dpcm) { |
618dae11 LG |
2700 | struct snd_soc_pcm_runtime *be = dpcm->be; |
2701 | if (be->dpcm[stream].state != SND_SOC_DPCM_STATE_START) | |
2702 | dpcm->state = SND_SOC_DPCM_LINK_STATE_FREE; | |
2703 | } | |
a9764869 | 2704 | spin_unlock_irqrestore(&fe->card->dpcm_lock, flags); |
618dae11 LG |
2705 | |
2706 | return ret; | |
2707 | } | |
2708 | ||
2709 | static int dpcm_run_new_update(struct snd_soc_pcm_runtime *fe, int stream) | |
2710 | { | |
2711 | int ret; | |
2712 | ||
ea9d0d77 | 2713 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_BE); |
618dae11 LG |
2714 | ret = dpcm_run_update_startup(fe, stream); |
2715 | if (ret < 0) | |
103d84a3 | 2716 | dev_err(fe->dev, "ASoC: failed to startup some BEs\n"); |
ea9d0d77 | 2717 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_NO); |
618dae11 LG |
2718 | |
2719 | return ret; | |
2720 | } | |
2721 | ||
2722 | static int dpcm_run_old_update(struct snd_soc_pcm_runtime *fe, int stream) | |
2723 | { | |
2724 | int ret; | |
2725 | ||
ea9d0d77 | 2726 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_BE); |
618dae11 LG |
2727 | ret = dpcm_run_update_shutdown(fe, stream); |
2728 | if (ret < 0) | |
103d84a3 | 2729 | dev_err(fe->dev, "ASoC: failed to shutdown some BEs\n"); |
ea9d0d77 | 2730 | dpcm_set_fe_update_state(fe, stream, SND_SOC_DPCM_UPDATE_NO); |
618dae11 LG |
2731 | |
2732 | return ret; | |
2733 | } | |
2734 | ||
de15d7ff | 2735 | static int soc_dpcm_fe_runtime_update(struct snd_soc_pcm_runtime *fe, int new) |
618dae11 | 2736 | { |
de15d7ff JB |
2737 | struct snd_soc_dapm_widget_list *list; |
2738 | int count, paths; | |
618dae11 | 2739 | |
de15d7ff JB |
2740 | if (!fe->dai_link->dynamic) |
2741 | return 0; | |
618dae11 | 2742 | |
de15d7ff JB |
2743 | /* only check active links */ |
2744 | if (!fe->cpu_dai->active) | |
2745 | return 0; | |
618dae11 | 2746 | |
de15d7ff JB |
2747 | /* DAPM sync will call this to update DSP paths */ |
2748 | dev_dbg(fe->dev, "ASoC: DPCM %s runtime update for FE %s\n", | |
2749 | new ? "new" : "old", fe->dai_link->name); | |
618dae11 | 2750 | |
de15d7ff JB |
2751 | /* skip if FE doesn't have playback capability */ |
2752 | if (!fe->cpu_dai->driver->playback.channels_min || | |
2753 | !fe->codec_dai->driver->playback.channels_min) | |
2754 | goto capture; | |
618dae11 | 2755 | |
de15d7ff JB |
2756 | /* skip if FE isn't currently playing */ |
2757 | if (!fe->cpu_dai->playback_active || !fe->codec_dai->playback_active) | |
2758 | goto capture; | |
618dae11 | 2759 | |
de15d7ff JB |
2760 | paths = dpcm_path_get(fe, SNDRV_PCM_STREAM_PLAYBACK, &list); |
2761 | if (paths < 0) { | |
2762 | dev_warn(fe->dev, "ASoC: %s no valid %s path\n", | |
2763 | fe->dai_link->name, "playback"); | |
2764 | return paths; | |
2765 | } | |
618dae11 | 2766 | |
de15d7ff JB |
2767 | /* update any playback paths */ |
2768 | count = dpcm_process_paths(fe, SNDRV_PCM_STREAM_PLAYBACK, &list, new); | |
2769 | if (count) { | |
2770 | if (new) | |
2771 | dpcm_run_new_update(fe, SNDRV_PCM_STREAM_PLAYBACK); | |
2772 | else | |
618dae11 | 2773 | dpcm_run_old_update(fe, SNDRV_PCM_STREAM_PLAYBACK); |
618dae11 | 2774 | |
de15d7ff JB |
2775 | dpcm_clear_pending_state(fe, SNDRV_PCM_STREAM_PLAYBACK); |
2776 | dpcm_be_disconnect(fe, SNDRV_PCM_STREAM_PLAYBACK); | |
2777 | } | |
2778 | ||
2779 | dpcm_path_put(&list); | |
2780 | ||
618dae11 | 2781 | capture: |
de15d7ff JB |
2782 | /* skip if FE doesn't have capture capability */ |
2783 | if (!fe->cpu_dai->driver->capture.channels_min || | |
2784 | !fe->codec_dai->driver->capture.channels_min) | |
2785 | return 0; | |
075207d2 | 2786 | |
de15d7ff JB |
2787 | /* skip if FE isn't currently capturing */ |
2788 | if (!fe->cpu_dai->capture_active || !fe->codec_dai->capture_active) | |
2789 | return 0; | |
618dae11 | 2790 | |
de15d7ff JB |
2791 | paths = dpcm_path_get(fe, SNDRV_PCM_STREAM_CAPTURE, &list); |
2792 | if (paths < 0) { | |
2793 | dev_warn(fe->dev, "ASoC: %s no valid %s path\n", | |
2794 | fe->dai_link->name, "capture"); | |
2795 | return paths; | |
2796 | } | |
618dae11 | 2797 | |
de15d7ff JB |
2798 | /* update any old capture paths */ |
2799 | count = dpcm_process_paths(fe, SNDRV_PCM_STREAM_CAPTURE, &list, new); | |
2800 | if (count) { | |
2801 | if (new) | |
618dae11 | 2802 | dpcm_run_new_update(fe, SNDRV_PCM_STREAM_CAPTURE); |
de15d7ff | 2803 | else |
618dae11 | 2804 | dpcm_run_old_update(fe, SNDRV_PCM_STREAM_CAPTURE); |
618dae11 | 2805 | |
de15d7ff JB |
2806 | dpcm_clear_pending_state(fe, SNDRV_PCM_STREAM_CAPTURE); |
2807 | dpcm_be_disconnect(fe, SNDRV_PCM_STREAM_CAPTURE); | |
618dae11 LG |
2808 | } |
2809 | ||
de15d7ff JB |
2810 | dpcm_path_put(&list); |
2811 | ||
618dae11 LG |
2812 | return 0; |
2813 | } | |
de15d7ff JB |
2814 | |
2815 | /* Called by DAPM mixer/mux changes to update audio routing between PCMs and | |
2816 | * any DAI links. | |
2817 | */ | |
2818 | int soc_dpcm_runtime_update(struct snd_soc_card *card) | |
2819 | { | |
2820 | struct snd_soc_pcm_runtime *fe; | |
2821 | int ret = 0; | |
2822 | ||
2823 | mutex_lock_nested(&card->mutex, SND_SOC_CARD_CLASS_RUNTIME); | |
2824 | /* shutdown all old paths first */ | |
bcb1fd1f | 2825 | for_each_card_rtds(card, fe) { |
de15d7ff JB |
2826 | ret = soc_dpcm_fe_runtime_update(fe, 0); |
2827 | if (ret) | |
2828 | goto out; | |
2829 | } | |
2830 | ||
2831 | /* bring new paths up */ | |
bcb1fd1f | 2832 | for_each_card_rtds(card, fe) { |
de15d7ff JB |
2833 | ret = soc_dpcm_fe_runtime_update(fe, 1); |
2834 | if (ret) | |
2835 | goto out; | |
2836 | } | |
2837 | ||
2838 | out: | |
2839 | mutex_unlock(&card->mutex); | |
2840 | return ret; | |
2841 | } | |
01d7584c LG |
2842 | int soc_dpcm_be_digital_mute(struct snd_soc_pcm_runtime *fe, int mute) |
2843 | { | |
2844 | struct snd_soc_dpcm *dpcm; | |
7afecb30 | 2845 | struct snd_soc_dai *dai; |
01d7584c | 2846 | |
8d6258a4 | 2847 | for_each_dpcm_be(fe, SNDRV_PCM_STREAM_PLAYBACK, dpcm) { |
01d7584c LG |
2848 | |
2849 | struct snd_soc_pcm_runtime *be = dpcm->be; | |
2e5894d7 | 2850 | int i; |
01d7584c LG |
2851 | |
2852 | if (be->dai_link->ignore_suspend) | |
2853 | continue; | |
2854 | ||
7afecb30 | 2855 | for_each_rtd_codec_dai(be, i, dai) { |
2e5894d7 BC |
2856 | struct snd_soc_dai_driver *drv = dai->driver; |
2857 | ||
2858 | dev_dbg(be->dev, "ASoC: BE digital mute %s\n", | |
2859 | be->dai_link->name); | |
01d7584c | 2860 | |
2e5894d7 BC |
2861 | if (drv->ops && drv->ops->digital_mute && |
2862 | dai->playback_active) | |
2863 | drv->ops->digital_mute(dai, mute); | |
2864 | } | |
01d7584c LG |
2865 | } |
2866 | ||
2867 | return 0; | |
2868 | } | |
2869 | ||
45c0a188 | 2870 | static int dpcm_fe_dai_open(struct snd_pcm_substream *fe_substream) |
01d7584c LG |
2871 | { |
2872 | struct snd_soc_pcm_runtime *fe = fe_substream->private_data; | |
2873 | struct snd_soc_dpcm *dpcm; | |
2874 | struct snd_soc_dapm_widget_list *list; | |
2875 | int ret; | |
2876 | int stream = fe_substream->stream; | |
2877 | ||
2878 | mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME); | |
2879 | fe->dpcm[stream].runtime = fe_substream->runtime; | |
2880 | ||
8f70e515 QZ |
2881 | ret = dpcm_path_get(fe, stream, &list); |
2882 | if (ret < 0) { | |
2883 | mutex_unlock(&fe->card->mutex); | |
2884 | return ret; | |
2885 | } else if (ret == 0) { | |
103d84a3 | 2886 | dev_dbg(fe->dev, "ASoC: %s no valid %s route\n", |
01d7584c | 2887 | fe->dai_link->name, stream ? "capture" : "playback"); |
01d7584c LG |
2888 | } |
2889 | ||
2890 | /* calculate valid and active FE <-> BE dpcms */ | |
2891 | dpcm_process_paths(fe, stream, &list, 1); | |
2892 | ||
2893 | ret = dpcm_fe_dai_startup(fe_substream); | |
2894 | if (ret < 0) { | |
2895 | /* clean up all links */ | |
8d6258a4 | 2896 | for_each_dpcm_be(fe, stream, dpcm) |
01d7584c LG |
2897 | dpcm->state = SND_SOC_DPCM_LINK_STATE_FREE; |
2898 | ||
2899 | dpcm_be_disconnect(fe, stream); | |
2900 | fe->dpcm[stream].runtime = NULL; | |
2901 | } | |
2902 | ||
2903 | dpcm_clear_pending_state(fe, stream); | |
2904 | dpcm_path_put(&list); | |
2905 | mutex_unlock(&fe->card->mutex); | |
2906 | return ret; | |
2907 | } | |
2908 | ||
45c0a188 | 2909 | static int dpcm_fe_dai_close(struct snd_pcm_substream *fe_substream) |
01d7584c LG |
2910 | { |
2911 | struct snd_soc_pcm_runtime *fe = fe_substream->private_data; | |
2912 | struct snd_soc_dpcm *dpcm; | |
2913 | int stream = fe_substream->stream, ret; | |
2914 | ||
2915 | mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME); | |
2916 | ret = dpcm_fe_dai_shutdown(fe_substream); | |
2917 | ||
2918 | /* mark FE's links ready to prune */ | |
8d6258a4 | 2919 | for_each_dpcm_be(fe, stream, dpcm) |
01d7584c LG |
2920 | dpcm->state = SND_SOC_DPCM_LINK_STATE_FREE; |
2921 | ||
2922 | dpcm_be_disconnect(fe, stream); | |
2923 | ||
2924 | fe->dpcm[stream].runtime = NULL; | |
2925 | mutex_unlock(&fe->card->mutex); | |
2926 | return ret; | |
2927 | } | |
2928 | ||
5d61f0ba TI |
2929 | static void soc_pcm_private_free(struct snd_pcm *pcm) |
2930 | { | |
2931 | struct snd_soc_pcm_runtime *rtd = pcm->private_data; | |
f523aceb KM |
2932 | struct snd_soc_rtdcom_list *rtdcom; |
2933 | struct snd_soc_component *component; | |
2934 | ||
f30a4c31 KM |
2935 | /* need to sync the delayed work before releasing resources */ |
2936 | flush_delayed_work(&rtd->delayed_work); | |
f523aceb | 2937 | for_each_rtdcom(rtd, rtdcom) { |
f523aceb | 2938 | component = rtdcom->component; |
5d61f0ba | 2939 | |
11fb14f8 KM |
2940 | if (component->driver->pcm_free) |
2941 | component->driver->pcm_free(pcm); | |
f523aceb | 2942 | } |
5d61f0ba TI |
2943 | } |
2944 | ||
b8135864 KM |
2945 | static int soc_rtdcom_ack(struct snd_pcm_substream *substream) |
2946 | { | |
2947 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
2948 | struct snd_soc_rtdcom_list *rtdcom; | |
2949 | struct snd_soc_component *component; | |
2950 | ||
2951 | for_each_rtdcom(rtd, rtdcom) { | |
2952 | component = rtdcom->component; | |
2953 | ||
2954 | if (!component->driver->ops || | |
2955 | !component->driver->ops->ack) | |
2956 | continue; | |
2957 | ||
2958 | /* FIXME. it returns 1st ask now */ | |
2959 | return component->driver->ops->ack(substream); | |
2960 | } | |
2961 | ||
2962 | return -EINVAL; | |
2963 | } | |
2964 | ||
2965 | static int soc_rtdcom_copy_user(struct snd_pcm_substream *substream, int channel, | |
2966 | unsigned long pos, void __user *buf, | |
2967 | unsigned long bytes) | |
2968 | { | |
2969 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
2970 | struct snd_soc_rtdcom_list *rtdcom; | |
2971 | struct snd_soc_component *component; | |
2972 | ||
2973 | for_each_rtdcom(rtd, rtdcom) { | |
2974 | component = rtdcom->component; | |
2975 | ||
2976 | if (!component->driver->ops || | |
2977 | !component->driver->ops->copy_user) | |
2978 | continue; | |
2979 | ||
2980 | /* FIXME. it returns 1st copy now */ | |
2981 | return component->driver->ops->copy_user(substream, channel, | |
2982 | pos, buf, bytes); | |
2983 | } | |
2984 | ||
2985 | return -EINVAL; | |
2986 | } | |
2987 | ||
2988 | static int soc_rtdcom_copy_kernel(struct snd_pcm_substream *substream, int channel, | |
2989 | unsigned long pos, void *buf, unsigned long bytes) | |
2990 | { | |
2991 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
2992 | struct snd_soc_rtdcom_list *rtdcom; | |
2993 | struct snd_soc_component *component; | |
2994 | ||
2995 | for_each_rtdcom(rtd, rtdcom) { | |
2996 | component = rtdcom->component; | |
2997 | ||
2998 | if (!component->driver->ops || | |
2999 | !component->driver->ops->copy_kernel) | |
3000 | continue; | |
3001 | ||
3002 | /* FIXME. it returns 1st copy now */ | |
3003 | return component->driver->ops->copy_kernel(substream, channel, | |
3004 | pos, buf, bytes); | |
3005 | } | |
3006 | ||
3007 | return -EINVAL; | |
3008 | } | |
3009 | ||
3010 | static int soc_rtdcom_fill_silence(struct snd_pcm_substream *substream, int channel, | |
3011 | unsigned long pos, unsigned long bytes) | |
3012 | { | |
3013 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
3014 | struct snd_soc_rtdcom_list *rtdcom; | |
3015 | struct snd_soc_component *component; | |
3016 | ||
3017 | for_each_rtdcom(rtd, rtdcom) { | |
3018 | component = rtdcom->component; | |
3019 | ||
3020 | if (!component->driver->ops || | |
3021 | !component->driver->ops->fill_silence) | |
3022 | continue; | |
3023 | ||
3024 | /* FIXME. it returns 1st silence now */ | |
3025 | return component->driver->ops->fill_silence(substream, channel, | |
3026 | pos, bytes); | |
3027 | } | |
3028 | ||
3029 | return -EINVAL; | |
3030 | } | |
3031 | ||
3032 | static struct page *soc_rtdcom_page(struct snd_pcm_substream *substream, | |
3033 | unsigned long offset) | |
3034 | { | |
3035 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
3036 | struct snd_soc_rtdcom_list *rtdcom; | |
3037 | struct snd_soc_component *component; | |
3038 | struct page *page; | |
3039 | ||
3040 | for_each_rtdcom(rtd, rtdcom) { | |
3041 | component = rtdcom->component; | |
3042 | ||
3043 | if (!component->driver->ops || | |
3044 | !component->driver->ops->page) | |
3045 | continue; | |
3046 | ||
3047 | /* FIXME. it returns 1st page now */ | |
3048 | page = component->driver->ops->page(substream, offset); | |
3049 | if (page) | |
3050 | return page; | |
3051 | } | |
3052 | ||
3053 | return NULL; | |
3054 | } | |
3055 | ||
3056 | static int soc_rtdcom_mmap(struct snd_pcm_substream *substream, | |
3057 | struct vm_area_struct *vma) | |
3058 | { | |
3059 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
3060 | struct snd_soc_rtdcom_list *rtdcom; | |
3061 | struct snd_soc_component *component; | |
3062 | ||
3063 | for_each_rtdcom(rtd, rtdcom) { | |
3064 | component = rtdcom->component; | |
3065 | ||
3066 | if (!component->driver->ops || | |
3067 | !component->driver->ops->mmap) | |
3068 | continue; | |
3069 | ||
3070 | /* FIXME. it returns 1st mmap now */ | |
3071 | return component->driver->ops->mmap(substream, vma); | |
3072 | } | |
3073 | ||
3074 | return -EINVAL; | |
3075 | } | |
3076 | ||
ddee627c LG |
3077 | /* create a new pcm */ |
3078 | int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num) | |
3079 | { | |
2e5894d7 | 3080 | struct snd_soc_dai *codec_dai; |
ddee627c | 3081 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
f523aceb KM |
3082 | struct snd_soc_component *component; |
3083 | struct snd_soc_rtdcom_list *rtdcom; | |
ddee627c LG |
3084 | struct snd_pcm *pcm; |
3085 | char new_name[64]; | |
3086 | int ret = 0, playback = 0, capture = 0; | |
2e5894d7 | 3087 | int i; |
ddee627c | 3088 | |
01d7584c | 3089 | if (rtd->dai_link->dynamic || rtd->dai_link->no_pcm) { |
1e9de42f LG |
3090 | playback = rtd->dai_link->dpcm_playback; |
3091 | capture = rtd->dai_link->dpcm_capture; | |
01d7584c | 3092 | } else { |
0b7990e3 | 3093 | for_each_rtd_codec_dai(rtd, i, codec_dai) { |
2e5894d7 BC |
3094 | if (codec_dai->driver->playback.channels_min) |
3095 | playback = 1; | |
3096 | if (codec_dai->driver->capture.channels_min) | |
3097 | capture = 1; | |
3098 | } | |
3099 | ||
3100 | capture = capture && cpu_dai->driver->capture.channels_min; | |
3101 | playback = playback && cpu_dai->driver->playback.channels_min; | |
01d7584c LG |
3102 | } |
3103 | ||
d6bead02 FE |
3104 | if (rtd->dai_link->playback_only) { |
3105 | playback = 1; | |
3106 | capture = 0; | |
3107 | } | |
3108 | ||
3109 | if (rtd->dai_link->capture_only) { | |
3110 | playback = 0; | |
3111 | capture = 1; | |
3112 | } | |
3113 | ||
01d7584c LG |
3114 | /* create the PCM */ |
3115 | if (rtd->dai_link->no_pcm) { | |
3116 | snprintf(new_name, sizeof(new_name), "(%s)", | |
3117 | rtd->dai_link->stream_name); | |
3118 | ||
3119 | ret = snd_pcm_new_internal(rtd->card->snd_card, new_name, num, | |
3120 | playback, capture, &pcm); | |
3121 | } else { | |
3122 | if (rtd->dai_link->dynamic) | |
3123 | snprintf(new_name, sizeof(new_name), "%s (*)", | |
3124 | rtd->dai_link->stream_name); | |
3125 | else | |
3126 | snprintf(new_name, sizeof(new_name), "%s %s-%d", | |
2e5894d7 BC |
3127 | rtd->dai_link->stream_name, |
3128 | (rtd->num_codecs > 1) ? | |
3129 | "multicodec" : rtd->codec_dai->name, num); | |
01d7584c LG |
3130 | |
3131 | ret = snd_pcm_new(rtd->card->snd_card, new_name, num, playback, | |
3132 | capture, &pcm); | |
3133 | } | |
ddee627c | 3134 | if (ret < 0) { |
103d84a3 | 3135 | dev_err(rtd->card->dev, "ASoC: can't create pcm for %s\n", |
5cb9b748 | 3136 | rtd->dai_link->name); |
ddee627c LG |
3137 | return ret; |
3138 | } | |
103d84a3 | 3139 | dev_dbg(rtd->card->dev, "ASoC: registered pcm #%d %s\n",num, new_name); |
ddee627c LG |
3140 | |
3141 | /* DAPM dai link stream work */ | |
3142 | INIT_DELAYED_WORK(&rtd->delayed_work, close_delayed_work); | |
3143 | ||
48c7699f | 3144 | pcm->nonatomic = rtd->dai_link->nonatomic; |
ddee627c LG |
3145 | rtd->pcm = pcm; |
3146 | pcm->private_data = rtd; | |
01d7584c LG |
3147 | |
3148 | if (rtd->dai_link->no_pcm) { | |
3149 | if (playback) | |
3150 | pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream->private_data = rtd; | |
3151 | if (capture) | |
3152 | pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream->private_data = rtd; | |
3153 | goto out; | |
3154 | } | |
3155 | ||
3156 | /* ASoC PCM operations */ | |
3157 | if (rtd->dai_link->dynamic) { | |
3158 | rtd->ops.open = dpcm_fe_dai_open; | |
3159 | rtd->ops.hw_params = dpcm_fe_dai_hw_params; | |
3160 | rtd->ops.prepare = dpcm_fe_dai_prepare; | |
3161 | rtd->ops.trigger = dpcm_fe_dai_trigger; | |
3162 | rtd->ops.hw_free = dpcm_fe_dai_hw_free; | |
3163 | rtd->ops.close = dpcm_fe_dai_close; | |
3164 | rtd->ops.pointer = soc_pcm_pointer; | |
be3f3f2c | 3165 | rtd->ops.ioctl = soc_pcm_ioctl; |
01d7584c LG |
3166 | } else { |
3167 | rtd->ops.open = soc_pcm_open; | |
3168 | rtd->ops.hw_params = soc_pcm_hw_params; | |
3169 | rtd->ops.prepare = soc_pcm_prepare; | |
3170 | rtd->ops.trigger = soc_pcm_trigger; | |
3171 | rtd->ops.hw_free = soc_pcm_hw_free; | |
3172 | rtd->ops.close = soc_pcm_close; | |
3173 | rtd->ops.pointer = soc_pcm_pointer; | |
be3f3f2c | 3174 | rtd->ops.ioctl = soc_pcm_ioctl; |
01d7584c LG |
3175 | } |
3176 | ||
b8135864 KM |
3177 | for_each_rtdcom(rtd, rtdcom) { |
3178 | const struct snd_pcm_ops *ops = rtdcom->component->driver->ops; | |
3179 | ||
3180 | if (!ops) | |
3181 | continue; | |
3182 | ||
3183 | if (ops->ack) | |
3184 | rtd->ops.ack = soc_rtdcom_ack; | |
3185 | if (ops->copy_user) | |
3186 | rtd->ops.copy_user = soc_rtdcom_copy_user; | |
3187 | if (ops->copy_kernel) | |
3188 | rtd->ops.copy_kernel = soc_rtdcom_copy_kernel; | |
3189 | if (ops->fill_silence) | |
3190 | rtd->ops.fill_silence = soc_rtdcom_fill_silence; | |
3191 | if (ops->page) | |
3192 | rtd->ops.page = soc_rtdcom_page; | |
3193 | if (ops->mmap) | |
3194 | rtd->ops.mmap = soc_rtdcom_mmap; | |
ddee627c LG |
3195 | } |
3196 | ||
3197 | if (playback) | |
01d7584c | 3198 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &rtd->ops); |
ddee627c LG |
3199 | |
3200 | if (capture) | |
01d7584c | 3201 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &rtd->ops); |
ddee627c | 3202 | |
f523aceb KM |
3203 | for_each_rtdcom(rtd, rtdcom) { |
3204 | component = rtdcom->component; | |
3205 | ||
11fb14f8 | 3206 | if (!component->driver->pcm_new) |
f523aceb KM |
3207 | continue; |
3208 | ||
11fb14f8 | 3209 | ret = component->driver->pcm_new(rtd); |
c641e5b2 | 3210 | if (ret < 0) { |
f523aceb | 3211 | dev_err(component->dev, |
c641e5b2 JH |
3212 | "ASoC: pcm constructor failed: %d\n", |
3213 | ret); | |
3214 | return ret; | |
ddee627c LG |
3215 | } |
3216 | } | |
c641e5b2 | 3217 | |
5d61f0ba | 3218 | pcm->private_free = soc_pcm_private_free; |
3d21ef0b | 3219 | pcm->no_device_suspend = true; |
01d7584c | 3220 | out: |
2e5894d7 BC |
3221 | dev_info(rtd->card->dev, "%s <-> %s mapping ok\n", |
3222 | (rtd->num_codecs > 1) ? "multicodec" : rtd->codec_dai->name, | |
3223 | cpu_dai->name); | |
ddee627c LG |
3224 | return ret; |
3225 | } | |
01d7584c LG |
3226 | |
3227 | /* is the current PCM operation for this FE ? */ | |
3228 | int snd_soc_dpcm_fe_can_update(struct snd_soc_pcm_runtime *fe, int stream) | |
3229 | { | |
3230 | if (fe->dpcm[stream].runtime_update == SND_SOC_DPCM_UPDATE_FE) | |
3231 | return 1; | |
3232 | return 0; | |
3233 | } | |
3234 | EXPORT_SYMBOL_GPL(snd_soc_dpcm_fe_can_update); | |
3235 | ||
3236 | /* is the current PCM operation for this BE ? */ | |
3237 | int snd_soc_dpcm_be_can_update(struct snd_soc_pcm_runtime *fe, | |
3238 | struct snd_soc_pcm_runtime *be, int stream) | |
3239 | { | |
3240 | if ((fe->dpcm[stream].runtime_update == SND_SOC_DPCM_UPDATE_FE) || | |
3241 | ((fe->dpcm[stream].runtime_update == SND_SOC_DPCM_UPDATE_BE) && | |
3242 | be->dpcm[stream].runtime_update)) | |
3243 | return 1; | |
3244 | return 0; | |
3245 | } | |
3246 | EXPORT_SYMBOL_GPL(snd_soc_dpcm_be_can_update); | |
3247 | ||
3248 | /* get the substream for this BE */ | |
3249 | struct snd_pcm_substream * | |
3250 | snd_soc_dpcm_get_substream(struct snd_soc_pcm_runtime *be, int stream) | |
3251 | { | |
3252 | return be->pcm->streams[stream].substream; | |
3253 | } | |
3254 | EXPORT_SYMBOL_GPL(snd_soc_dpcm_get_substream); | |
3255 | ||
3256 | /* get the BE runtime state */ | |
3257 | enum snd_soc_dpcm_state | |
3258 | snd_soc_dpcm_be_get_state(struct snd_soc_pcm_runtime *be, int stream) | |
3259 | { | |
3260 | return be->dpcm[stream].state; | |
3261 | } | |
3262 | EXPORT_SYMBOL_GPL(snd_soc_dpcm_be_get_state); | |
3263 | ||
3264 | /* set the BE runtime state */ | |
3265 | void snd_soc_dpcm_be_set_state(struct snd_soc_pcm_runtime *be, | |
3266 | int stream, enum snd_soc_dpcm_state state) | |
3267 | { | |
3268 | be->dpcm[stream].state = state; | |
3269 | } | |
3270 | EXPORT_SYMBOL_GPL(snd_soc_dpcm_be_set_state); | |
3271 | ||
3272 | /* | |
3273 | * We can only hw_free, stop, pause or suspend a BE DAI if any of it's FE | |
3274 | * are not running, paused or suspended for the specified stream direction. | |
3275 | */ | |
3276 | int snd_soc_dpcm_can_be_free_stop(struct snd_soc_pcm_runtime *fe, | |
3277 | struct snd_soc_pcm_runtime *be, int stream) | |
3278 | { | |
3279 | struct snd_soc_dpcm *dpcm; | |
3280 | int state; | |
a9764869 KC |
3281 | int ret = 1; |
3282 | unsigned long flags; | |
01d7584c | 3283 | |
a9764869 | 3284 | spin_lock_irqsave(&fe->card->dpcm_lock, flags); |
d2e24d64 | 3285 | for_each_dpcm_fe(be, stream, dpcm) { |
01d7584c LG |
3286 | |
3287 | if (dpcm->fe == fe) | |
3288 | continue; | |
3289 | ||
3290 | state = dpcm->fe->dpcm[stream].state; | |
3291 | if (state == SND_SOC_DPCM_STATE_START || | |
3292 | state == SND_SOC_DPCM_STATE_PAUSED || | |
a9764869 KC |
3293 | state == SND_SOC_DPCM_STATE_SUSPEND) { |
3294 | ret = 0; | |
3295 | break; | |
3296 | } | |
01d7584c | 3297 | } |
a9764869 | 3298 | spin_unlock_irqrestore(&fe->card->dpcm_lock, flags); |
01d7584c LG |
3299 | |
3300 | /* it's safe to free/stop this BE DAI */ | |
a9764869 | 3301 | return ret; |
01d7584c LG |
3302 | } |
3303 | EXPORT_SYMBOL_GPL(snd_soc_dpcm_can_be_free_stop); | |
3304 | ||
3305 | /* | |
3306 | * We can only change hw params a BE DAI if any of it's FE are not prepared, | |
3307 | * running, paused or suspended for the specified stream direction. | |
3308 | */ | |
3309 | int snd_soc_dpcm_can_be_params(struct snd_soc_pcm_runtime *fe, | |
3310 | struct snd_soc_pcm_runtime *be, int stream) | |
3311 | { | |
3312 | struct snd_soc_dpcm *dpcm; | |
3313 | int state; | |
a9764869 KC |
3314 | int ret = 1; |
3315 | unsigned long flags; | |
01d7584c | 3316 | |
a9764869 | 3317 | spin_lock_irqsave(&fe->card->dpcm_lock, flags); |
d2e24d64 | 3318 | for_each_dpcm_fe(be, stream, dpcm) { |
01d7584c LG |
3319 | |
3320 | if (dpcm->fe == fe) | |
3321 | continue; | |
3322 | ||
3323 | state = dpcm->fe->dpcm[stream].state; | |
3324 | if (state == SND_SOC_DPCM_STATE_START || | |
3325 | state == SND_SOC_DPCM_STATE_PAUSED || | |
3326 | state == SND_SOC_DPCM_STATE_SUSPEND || | |
a9764869 KC |
3327 | state == SND_SOC_DPCM_STATE_PREPARE) { |
3328 | ret = 0; | |
3329 | break; | |
3330 | } | |
01d7584c | 3331 | } |
a9764869 | 3332 | spin_unlock_irqrestore(&fe->card->dpcm_lock, flags); |
01d7584c LG |
3333 | |
3334 | /* it's safe to change hw_params */ | |
a9764869 | 3335 | return ret; |
01d7584c LG |
3336 | } |
3337 | EXPORT_SYMBOL_GPL(snd_soc_dpcm_can_be_params); | |
f86dcef8 LG |
3338 | |
3339 | #ifdef CONFIG_DEBUG_FS | |
85280141 | 3340 | static const char *dpcm_state_string(enum snd_soc_dpcm_state state) |
f86dcef8 LG |
3341 | { |
3342 | switch (state) { | |
3343 | case SND_SOC_DPCM_STATE_NEW: | |
3344 | return "new"; | |
3345 | case SND_SOC_DPCM_STATE_OPEN: | |
3346 | return "open"; | |
3347 | case SND_SOC_DPCM_STATE_HW_PARAMS: | |
3348 | return "hw_params"; | |
3349 | case SND_SOC_DPCM_STATE_PREPARE: | |
3350 | return "prepare"; | |
3351 | case SND_SOC_DPCM_STATE_START: | |
3352 | return "start"; | |
3353 | case SND_SOC_DPCM_STATE_STOP: | |
3354 | return "stop"; | |
3355 | case SND_SOC_DPCM_STATE_SUSPEND: | |
3356 | return "suspend"; | |
3357 | case SND_SOC_DPCM_STATE_PAUSED: | |
3358 | return "paused"; | |
3359 | case SND_SOC_DPCM_STATE_HW_FREE: | |
3360 | return "hw_free"; | |
3361 | case SND_SOC_DPCM_STATE_CLOSE: | |
3362 | return "close"; | |
3363 | } | |
3364 | ||
3365 | return "unknown"; | |
3366 | } | |
3367 | ||
f86dcef8 LG |
3368 | static ssize_t dpcm_show_state(struct snd_soc_pcm_runtime *fe, |
3369 | int stream, char *buf, size_t size) | |
3370 | { | |
3371 | struct snd_pcm_hw_params *params = &fe->dpcm[stream].hw_params; | |
3372 | struct snd_soc_dpcm *dpcm; | |
3373 | ssize_t offset = 0; | |
a9764869 | 3374 | unsigned long flags; |
f86dcef8 LG |
3375 | |
3376 | /* FE state */ | |
3377 | offset += snprintf(buf + offset, size - offset, | |
3378 | "[%s - %s]\n", fe->dai_link->name, | |
3379 | stream ? "Capture" : "Playback"); | |
3380 | ||
3381 | offset += snprintf(buf + offset, size - offset, "State: %s\n", | |
3382 | dpcm_state_string(fe->dpcm[stream].state)); | |
3383 | ||
3384 | if ((fe->dpcm[stream].state >= SND_SOC_DPCM_STATE_HW_PARAMS) && | |
3385 | (fe->dpcm[stream].state <= SND_SOC_DPCM_STATE_STOP)) | |
3386 | offset += snprintf(buf + offset, size - offset, | |
3387 | "Hardware Params: " | |
3388 | "Format = %s, Channels = %d, Rate = %d\n", | |
3389 | snd_pcm_format_name(params_format(params)), | |
3390 | params_channels(params), | |
3391 | params_rate(params)); | |
3392 | ||
3393 | /* BEs state */ | |
3394 | offset += snprintf(buf + offset, size - offset, "Backends:\n"); | |
3395 | ||
3396 | if (list_empty(&fe->dpcm[stream].be_clients)) { | |
3397 | offset += snprintf(buf + offset, size - offset, | |
3398 | " No active DSP links\n"); | |
3399 | goto out; | |
3400 | } | |
3401 | ||
a9764869 | 3402 | spin_lock_irqsave(&fe->card->dpcm_lock, flags); |
8d6258a4 | 3403 | for_each_dpcm_be(fe, stream, dpcm) { |
f86dcef8 LG |
3404 | struct snd_soc_pcm_runtime *be = dpcm->be; |
3405 | params = &dpcm->hw_params; | |
3406 | ||
3407 | offset += snprintf(buf + offset, size - offset, | |
3408 | "- %s\n", be->dai_link->name); | |
3409 | ||
3410 | offset += snprintf(buf + offset, size - offset, | |
3411 | " State: %s\n", | |
3412 | dpcm_state_string(be->dpcm[stream].state)); | |
3413 | ||
3414 | if ((be->dpcm[stream].state >= SND_SOC_DPCM_STATE_HW_PARAMS) && | |
3415 | (be->dpcm[stream].state <= SND_SOC_DPCM_STATE_STOP)) | |
3416 | offset += snprintf(buf + offset, size - offset, | |
3417 | " Hardware Params: " | |
3418 | "Format = %s, Channels = %d, Rate = %d\n", | |
3419 | snd_pcm_format_name(params_format(params)), | |
3420 | params_channels(params), | |
3421 | params_rate(params)); | |
3422 | } | |
a9764869 | 3423 | spin_unlock_irqrestore(&fe->card->dpcm_lock, flags); |
f86dcef8 LG |
3424 | out: |
3425 | return offset; | |
3426 | } | |
3427 | ||
3428 | static ssize_t dpcm_state_read_file(struct file *file, char __user *user_buf, | |
3429 | size_t count, loff_t *ppos) | |
3430 | { | |
3431 | struct snd_soc_pcm_runtime *fe = file->private_data; | |
3432 | ssize_t out_count = PAGE_SIZE, offset = 0, ret = 0; | |
3433 | char *buf; | |
3434 | ||
3435 | buf = kmalloc(out_count, GFP_KERNEL); | |
3436 | if (!buf) | |
3437 | return -ENOMEM; | |
3438 | ||
3439 | if (fe->cpu_dai->driver->playback.channels_min) | |
3440 | offset += dpcm_show_state(fe, SNDRV_PCM_STREAM_PLAYBACK, | |
3441 | buf + offset, out_count - offset); | |
3442 | ||
3443 | if (fe->cpu_dai->driver->capture.channels_min) | |
3444 | offset += dpcm_show_state(fe, SNDRV_PCM_STREAM_CAPTURE, | |
3445 | buf + offset, out_count - offset); | |
3446 | ||
f57b8488 | 3447 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, offset); |
f86dcef8 | 3448 | |
f57b8488 LG |
3449 | kfree(buf); |
3450 | return ret; | |
f86dcef8 LG |
3451 | } |
3452 | ||
3453 | static const struct file_operations dpcm_state_fops = { | |
f57b8488 | 3454 | .open = simple_open, |
f86dcef8 LG |
3455 | .read = dpcm_state_read_file, |
3456 | .llseek = default_llseek, | |
3457 | }; | |
3458 | ||
2e55b90a | 3459 | void soc_dpcm_debugfs_add(struct snd_soc_pcm_runtime *rtd) |
f86dcef8 | 3460 | { |
b3bba9a1 | 3461 | if (!rtd->dai_link) |
2e55b90a | 3462 | return; |
b3bba9a1 | 3463 | |
6553bf06 LPC |
3464 | if (!rtd->card->debugfs_card_root) |
3465 | return; | |
b3bba9a1 | 3466 | |
f86dcef8 LG |
3467 | rtd->debugfs_dpcm_root = debugfs_create_dir(rtd->dai_link->name, |
3468 | rtd->card->debugfs_card_root); | |
3469 | if (!rtd->debugfs_dpcm_root) { | |
3470 | dev_dbg(rtd->dev, | |
3471 | "ASoC: Failed to create dpcm debugfs directory %s\n", | |
3472 | rtd->dai_link->name); | |
2e55b90a | 3473 | return; |
f86dcef8 LG |
3474 | } |
3475 | ||
f1e3f409 FE |
3476 | debugfs_create_file("state", 0444, rtd->debugfs_dpcm_root, |
3477 | rtd, &dpcm_state_fops); | |
f86dcef8 LG |
3478 | } |
3479 | #endif |