xref: /openbmc/linux/sound/soc/soc-dai.c (revision c29b9772)
1 // SPDX-License-Identifier: GPL-2.0
2 //
3 // soc-dai.c
4 //
5 // Copyright (C) 2019 Renesas Electronics Corp.
6 // Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
7 //
8 
9 #include <sound/soc.h>
10 #include <sound/soc-dai.h>
11 #include <sound/soc-link.h>
12 
13 #define soc_dai_ret(dai, ret) _soc_dai_ret(dai, __func__, ret)
14 static inline int _soc_dai_ret(struct snd_soc_dai *dai,
15 			       const char *func, int ret)
16 {
17 	/* Positive, Zero values are not errors */
18 	if (ret >= 0)
19 		return ret;
20 
21 	/* Negative values might be errors */
22 	switch (ret) {
23 	case -EPROBE_DEFER:
24 	case -ENOTSUPP:
25 		break;
26 	default:
27 		dev_err(dai->dev,
28 			"ASoC: error at %s on %s: %d\n",
29 			func, dai->name, ret);
30 	}
31 
32 	return ret;
33 }
34 
35 /*
36  * We might want to check substream by using list.
37  * In such case, we can update these macros.
38  */
39 #define soc_dai_mark_push(dai, substream, tgt)	((dai)->mark_##tgt = substream)
40 #define soc_dai_mark_pop(dai, substream, tgt)	((dai)->mark_##tgt = NULL)
41 #define soc_dai_mark_match(dai, substream, tgt)	((dai)->mark_##tgt == substream)
42 
43 /**
44  * snd_soc_dai_set_sysclk - configure DAI system or master clock.
45  * @dai: DAI
46  * @clk_id: DAI specific clock ID
47  * @freq: new clock frequency in Hz
48  * @dir: new clock direction - input/output.
49  *
50  * Configures the DAI master (MCLK) or system (SYSCLK) clocking.
51  */
52 int snd_soc_dai_set_sysclk(struct snd_soc_dai *dai, int clk_id,
53 			   unsigned int freq, int dir)
54 {
55 	int ret;
56 
57 	if (dai->driver->ops &&
58 	    dai->driver->ops->set_sysclk)
59 		ret = dai->driver->ops->set_sysclk(dai, clk_id, freq, dir);
60 	else
61 		ret = snd_soc_component_set_sysclk(dai->component, clk_id, 0,
62 						   freq, dir);
63 
64 	return soc_dai_ret(dai, ret);
65 }
66 EXPORT_SYMBOL_GPL(snd_soc_dai_set_sysclk);
67 
68 /**
69  * snd_soc_dai_set_clkdiv - configure DAI clock dividers.
70  * @dai: DAI
71  * @div_id: DAI specific clock divider ID
72  * @div: new clock divisor.
73  *
74  * Configures the clock dividers. This is used to derive the best DAI bit and
75  * frame clocks from the system or master clock. It's best to set the DAI bit
76  * and frame clocks as low as possible to save system power.
77  */
78 int snd_soc_dai_set_clkdiv(struct snd_soc_dai *dai,
79 			   int div_id, int div)
80 {
81 	int ret = -EINVAL;
82 
83 	if (dai->driver->ops &&
84 	    dai->driver->ops->set_clkdiv)
85 		ret = dai->driver->ops->set_clkdiv(dai, div_id, div);
86 
87 	return soc_dai_ret(dai, ret);
88 }
89 EXPORT_SYMBOL_GPL(snd_soc_dai_set_clkdiv);
90 
91 /**
92  * snd_soc_dai_set_pll - configure DAI PLL.
93  * @dai: DAI
94  * @pll_id: DAI specific PLL ID
95  * @source: DAI specific source for the PLL
96  * @freq_in: PLL input clock frequency in Hz
97  * @freq_out: requested PLL output clock frequency in Hz
98  *
99  * Configures and enables PLL to generate output clock based on input clock.
100  */
101 int snd_soc_dai_set_pll(struct snd_soc_dai *dai, int pll_id, int source,
102 			unsigned int freq_in, unsigned int freq_out)
103 {
104 	int ret;
105 
106 	if (dai->driver->ops &&
107 	    dai->driver->ops->set_pll)
108 		ret = dai->driver->ops->set_pll(dai, pll_id, source,
109 						freq_in, freq_out);
110 	else
111 		ret = snd_soc_component_set_pll(dai->component, pll_id, source,
112 						freq_in, freq_out);
113 
114 	return soc_dai_ret(dai, ret);
115 }
116 EXPORT_SYMBOL_GPL(snd_soc_dai_set_pll);
117 
118 /**
119  * snd_soc_dai_set_bclk_ratio - configure BCLK to sample rate ratio.
120  * @dai: DAI
121  * @ratio: Ratio of BCLK to Sample rate.
122  *
123  * Configures the DAI for a preset BCLK to sample rate ratio.
124  */
125 int snd_soc_dai_set_bclk_ratio(struct snd_soc_dai *dai, unsigned int ratio)
126 {
127 	int ret = -ENOTSUPP;
128 
129 	if (dai->driver->ops &&
130 	    dai->driver->ops->set_bclk_ratio)
131 		ret = dai->driver->ops->set_bclk_ratio(dai, ratio);
132 
133 	return soc_dai_ret(dai, ret);
134 }
135 EXPORT_SYMBOL_GPL(snd_soc_dai_set_bclk_ratio);
136 
137 int snd_soc_dai_get_fmt_max_priority(struct snd_soc_pcm_runtime *rtd)
138 {
139 	struct snd_soc_dai *dai;
140 	int i, max = 0;
141 
142 	/*
143 	 * return max num if *ALL* DAIs have .auto_selectable_formats
144 	 */
145 	for_each_rtd_dais(rtd, i, dai) {
146 		if (dai->driver->ops &&
147 		    dai->driver->ops->num_auto_selectable_formats)
148 			max = max(max, dai->driver->ops->num_auto_selectable_formats);
149 		else
150 			return 0;
151 	}
152 
153 	return max;
154 }
155 
156 /**
157  * snd_soc_dai_get_fmt - get supported audio format.
158  * @dai: DAI
159  * @priority: priority level of supported audio format.
160  *
161  * This should return only formats implemented with high
162  * quality by the DAI so that the core can configure a
163  * format which will work well with other devices.
164  * For example devices which don't support both edges of the
165  * LRCLK signal in I2S style formats should only list DSP
166  * modes.  This will mean that sometimes fewer formats
167  * are reported here than are supported by set_fmt().
168  */
169 u64 snd_soc_dai_get_fmt(struct snd_soc_dai *dai, int priority)
170 {
171 	const struct snd_soc_dai_ops *ops = dai->driver->ops;
172 	u64 fmt = 0;
173 	int i, max = 0, until = priority;
174 
175 	/*
176 	 * Collect auto_selectable_formats until priority
177 	 *
178 	 * ex)
179 	 *	auto_selectable_formats[] = { A, B, C };
180 	 *	(A, B, C = SND_SOC_POSSIBLE_DAIFMT_xxx)
181 	 *
182 	 * priority = 1 :	A
183 	 * priority = 2 :	A | B
184 	 * priority = 3 :	A | B | C
185 	 * priority = 4 :	A | B | C
186 	 * ...
187 	 */
188 	if (ops)
189 		max = ops->num_auto_selectable_formats;
190 
191 	if (max < until)
192 		until = max;
193 
194 	for (i = 0; i < until; i++)
195 		fmt |= ops->auto_selectable_formats[i];
196 
197 	return fmt;
198 }
199 
200 /**
201  * snd_soc_dai_set_fmt - configure DAI hardware audio format.
202  * @dai: DAI
203  * @fmt: SND_SOC_DAIFMT_* format value.
204  *
205  * Configures the DAI hardware format and clocking.
206  */
207 int snd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
208 {
209 	int ret = -ENOTSUPP;
210 
211 	if (dai->driver->ops && dai->driver->ops->set_fmt)
212 		ret = dai->driver->ops->set_fmt(dai, fmt);
213 
214 	return soc_dai_ret(dai, ret);
215 }
216 EXPORT_SYMBOL_GPL(snd_soc_dai_set_fmt);
217 
218 /**
219  * snd_soc_xlate_tdm_slot_mask - generate tx/rx slot mask.
220  * @slots: Number of slots in use.
221  * @tx_mask: bitmask representing active TX slots.
222  * @rx_mask: bitmask representing active RX slots.
223  *
224  * Generates the TDM tx and rx slot default masks for DAI.
225  */
226 static int snd_soc_xlate_tdm_slot_mask(unsigned int slots,
227 				       unsigned int *tx_mask,
228 				       unsigned int *rx_mask)
229 {
230 	if (*tx_mask || *rx_mask)
231 		return 0;
232 
233 	if (!slots)
234 		return -EINVAL;
235 
236 	*tx_mask = (1 << slots) - 1;
237 	*rx_mask = (1 << slots) - 1;
238 
239 	return 0;
240 }
241 
242 /**
243  * snd_soc_dai_set_tdm_slot() - Configures a DAI for TDM operation
244  * @dai: The DAI to configure
245  * @tx_mask: bitmask representing active TX slots.
246  * @rx_mask: bitmask representing active RX slots.
247  * @slots: Number of slots in use.
248  * @slot_width: Width in bits for each slot.
249  *
250  * This function configures the specified DAI for TDM operation. @slot contains
251  * the total number of slots of the TDM stream and @slot_with the width of each
252  * slot in bit clock cycles. @tx_mask and @rx_mask are bitmasks specifying the
253  * active slots of the TDM stream for the specified DAI, i.e. which slots the
254  * DAI should write to or read from. If a bit is set the corresponding slot is
255  * active, if a bit is cleared the corresponding slot is inactive. Bit 0 maps to
256  * the first slot, bit 1 to the second slot and so on. The first active slot
257  * maps to the first channel of the DAI, the second active slot to the second
258  * channel and so on.
259  *
260  * TDM mode can be disabled by passing 0 for @slots. In this case @tx_mask,
261  * @rx_mask and @slot_width will be ignored.
262  *
263  * Returns 0 on success, a negative error code otherwise.
264  */
265 int snd_soc_dai_set_tdm_slot(struct snd_soc_dai *dai,
266 			     unsigned int tx_mask, unsigned int rx_mask,
267 			     int slots, int slot_width)
268 {
269 	int ret = -ENOTSUPP;
270 	int stream;
271 	unsigned int *tdm_mask[] = {
272 		&tx_mask,
273 		&rx_mask,
274 	};
275 
276 	if (dai->driver->ops &&
277 	    dai->driver->ops->xlate_tdm_slot_mask)
278 		dai->driver->ops->xlate_tdm_slot_mask(slots,
279 						      &tx_mask, &rx_mask);
280 	else
281 		snd_soc_xlate_tdm_slot_mask(slots, &tx_mask, &rx_mask);
282 
283 	for_each_pcm_streams(stream)
284 		snd_soc_dai_tdm_mask_set(dai, stream, *tdm_mask[stream]);
285 
286 	if (dai->driver->ops &&
287 	    dai->driver->ops->set_tdm_slot)
288 		ret = dai->driver->ops->set_tdm_slot(dai, tx_mask, rx_mask,
289 						      slots, slot_width);
290 	return soc_dai_ret(dai, ret);
291 }
292 EXPORT_SYMBOL_GPL(snd_soc_dai_set_tdm_slot);
293 
294 /**
295  * snd_soc_dai_set_channel_map - configure DAI audio channel map
296  * @dai: DAI
297  * @tx_num: how many TX channels
298  * @tx_slot: pointer to an array which imply the TX slot number channel
299  *           0~num-1 uses
300  * @rx_num: how many RX channels
301  * @rx_slot: pointer to an array which imply the RX slot number channel
302  *           0~num-1 uses
303  *
304  * configure the relationship between channel number and TDM slot number.
305  */
306 int snd_soc_dai_set_channel_map(struct snd_soc_dai *dai,
307 				unsigned int tx_num, unsigned int *tx_slot,
308 				unsigned int rx_num, unsigned int *rx_slot)
309 {
310 	int ret = -ENOTSUPP;
311 
312 	if (dai->driver->ops &&
313 	    dai->driver->ops->set_channel_map)
314 		ret = dai->driver->ops->set_channel_map(dai, tx_num, tx_slot,
315 							rx_num, rx_slot);
316 	return soc_dai_ret(dai, ret);
317 }
318 EXPORT_SYMBOL_GPL(snd_soc_dai_set_channel_map);
319 
320 /**
321  * snd_soc_dai_get_channel_map - Get DAI audio channel map
322  * @dai: DAI
323  * @tx_num: how many TX channels
324  * @tx_slot: pointer to an array which imply the TX slot number channel
325  *           0~num-1 uses
326  * @rx_num: how many RX channels
327  * @rx_slot: pointer to an array which imply the RX slot number channel
328  *           0~num-1 uses
329  */
330 int snd_soc_dai_get_channel_map(struct snd_soc_dai *dai,
331 				unsigned int *tx_num, unsigned int *tx_slot,
332 				unsigned int *rx_num, unsigned int *rx_slot)
333 {
334 	int ret = -ENOTSUPP;
335 
336 	if (dai->driver->ops &&
337 	    dai->driver->ops->get_channel_map)
338 		ret = dai->driver->ops->get_channel_map(dai, tx_num, tx_slot,
339 							rx_num, rx_slot);
340 	return soc_dai_ret(dai, ret);
341 }
342 EXPORT_SYMBOL_GPL(snd_soc_dai_get_channel_map);
343 
344 /**
345  * snd_soc_dai_set_tristate - configure DAI system or master clock.
346  * @dai: DAI
347  * @tristate: tristate enable
348  *
349  * Tristates the DAI so that others can use it.
350  */
351 int snd_soc_dai_set_tristate(struct snd_soc_dai *dai, int tristate)
352 {
353 	int ret = -EINVAL;
354 
355 	if (dai->driver->ops &&
356 	    dai->driver->ops->set_tristate)
357 		ret = dai->driver->ops->set_tristate(dai, tristate);
358 
359 	return soc_dai_ret(dai, ret);
360 }
361 EXPORT_SYMBOL_GPL(snd_soc_dai_set_tristate);
362 
363 /**
364  * snd_soc_dai_digital_mute - configure DAI system or master clock.
365  * @dai: DAI
366  * @mute: mute enable
367  * @direction: stream to mute
368  *
369  * Mutes the DAI DAC.
370  */
371 int snd_soc_dai_digital_mute(struct snd_soc_dai *dai, int mute,
372 			     int direction)
373 {
374 	int ret = -ENOTSUPP;
375 
376 	/*
377 	 * ignore if direction was CAPTURE
378 	 * and it had .no_capture_mute flag
379 	 */
380 	if (dai->driver->ops &&
381 	    dai->driver->ops->mute_stream &&
382 	    (direction == SNDRV_PCM_STREAM_PLAYBACK ||
383 	     !dai->driver->ops->no_capture_mute))
384 		ret = dai->driver->ops->mute_stream(dai, mute, direction);
385 
386 	return soc_dai_ret(dai, ret);
387 }
388 EXPORT_SYMBOL_GPL(snd_soc_dai_digital_mute);
389 
390 int snd_soc_dai_hw_params(struct snd_soc_dai *dai,
391 			  struct snd_pcm_substream *substream,
392 			  struct snd_pcm_hw_params *params)
393 {
394 	int ret = 0;
395 
396 	if (dai->driver->ops &&
397 	    dai->driver->ops->hw_params)
398 		ret = dai->driver->ops->hw_params(substream, params, dai);
399 
400 	/* mark substream if succeeded */
401 	if (ret == 0)
402 		soc_dai_mark_push(dai, substream, hw_params);
403 
404 	return soc_dai_ret(dai, ret);
405 }
406 
407 void snd_soc_dai_hw_free(struct snd_soc_dai *dai,
408 			 struct snd_pcm_substream *substream,
409 			 int rollback)
410 {
411 	if (rollback && !soc_dai_mark_match(dai, substream, hw_params))
412 		return;
413 
414 	if (dai->driver->ops &&
415 	    dai->driver->ops->hw_free)
416 		dai->driver->ops->hw_free(substream, dai);
417 
418 	/* remove marked substream */
419 	soc_dai_mark_pop(dai, substream, hw_params);
420 }
421 
422 int snd_soc_dai_startup(struct snd_soc_dai *dai,
423 			struct snd_pcm_substream *substream)
424 {
425 	int ret = 0;
426 
427 	if (dai->driver->ops &&
428 	    dai->driver->ops->startup)
429 		ret = dai->driver->ops->startup(substream, dai);
430 
431 	/* mark substream if succeeded */
432 	if (ret == 0)
433 		soc_dai_mark_push(dai, substream, startup);
434 
435 	return soc_dai_ret(dai, ret);
436 }
437 
438 void snd_soc_dai_shutdown(struct snd_soc_dai *dai,
439 			  struct snd_pcm_substream *substream,
440 			  int rollback)
441 {
442 	if (rollback && !soc_dai_mark_match(dai, substream, startup))
443 		return;
444 
445 	if (dai->driver->ops &&
446 	    dai->driver->ops->shutdown)
447 		dai->driver->ops->shutdown(substream, dai);
448 
449 	/* remove marked substream */
450 	soc_dai_mark_pop(dai, substream, startup);
451 }
452 
453 int snd_soc_dai_compress_new(struct snd_soc_dai *dai,
454 			     struct snd_soc_pcm_runtime *rtd, int num)
455 {
456 	int ret = -ENOTSUPP;
457 	if (dai->driver->compress_new)
458 		ret = dai->driver->compress_new(rtd, num);
459 	return soc_dai_ret(dai, ret);
460 }
461 
462 /*
463  * snd_soc_dai_stream_valid() - check if a DAI supports the given stream
464  *
465  * Returns true if the DAI supports the indicated stream type.
466  */
467 bool snd_soc_dai_stream_valid(struct snd_soc_dai *dai, int dir)
468 {
469 	struct snd_soc_pcm_stream *stream = snd_soc_dai_get_pcm_stream(dai, dir);
470 
471 	/* If the codec specifies any channels at all, it supports the stream */
472 	return stream->channels_min;
473 }
474 
475 /*
476  * snd_soc_dai_link_set_capabilities() - set dai_link properties based on its DAIs
477  */
478 void snd_soc_dai_link_set_capabilities(struct snd_soc_dai_link *dai_link)
479 {
480 	bool supported[SNDRV_PCM_STREAM_LAST + 1];
481 	int direction;
482 
483 	for_each_pcm_streams(direction) {
484 		struct snd_soc_dai_link_component *cpu;
485 		struct snd_soc_dai_link_component *codec;
486 		struct snd_soc_dai *dai;
487 		bool supported_cpu = false;
488 		bool supported_codec = false;
489 		int i;
490 
491 		for_each_link_cpus(dai_link, i, cpu) {
492 			dai = snd_soc_find_dai_with_mutex(cpu);
493 			if (dai && snd_soc_dai_stream_valid(dai, direction)) {
494 				supported_cpu = true;
495 				break;
496 			}
497 		}
498 		for_each_link_codecs(dai_link, i, codec) {
499 			dai = snd_soc_find_dai_with_mutex(codec);
500 			if (dai && snd_soc_dai_stream_valid(dai, direction)) {
501 				supported_codec = true;
502 				break;
503 			}
504 		}
505 		supported[direction] = supported_cpu && supported_codec;
506 	}
507 
508 	dai_link->dpcm_playback = supported[SNDRV_PCM_STREAM_PLAYBACK];
509 	dai_link->dpcm_capture  = supported[SNDRV_PCM_STREAM_CAPTURE];
510 }
511 EXPORT_SYMBOL_GPL(snd_soc_dai_link_set_capabilities);
512 
513 void snd_soc_dai_action(struct snd_soc_dai *dai,
514 			int stream, int action)
515 {
516 	/* see snd_soc_dai_stream_active() */
517 	dai->stream[stream].active	+= action;
518 
519 	/* see snd_soc_component_active() */
520 	dai->component->active		+= action;
521 }
522 EXPORT_SYMBOL_GPL(snd_soc_dai_action);
523 
524 int snd_soc_dai_active(struct snd_soc_dai *dai)
525 {
526 	int stream, active;
527 
528 	active = 0;
529 	for_each_pcm_streams(stream)
530 		active += dai->stream[stream].active;
531 
532 	return active;
533 }
534 EXPORT_SYMBOL_GPL(snd_soc_dai_active);
535 
536 int snd_soc_pcm_dai_probe(struct snd_soc_pcm_runtime *rtd, int order)
537 {
538 	struct snd_soc_dai *dai;
539 	int i;
540 
541 	for_each_rtd_dais(rtd, i, dai) {
542 		if (dai->driver->probe_order != order)
543 			continue;
544 
545 		if (dai->driver->probe) {
546 			int ret = dai->driver->probe(dai);
547 
548 			if (ret < 0)
549 				return soc_dai_ret(dai, ret);
550 		}
551 
552 		dai->probed = 1;
553 	}
554 
555 	return 0;
556 }
557 
558 int snd_soc_pcm_dai_remove(struct snd_soc_pcm_runtime *rtd, int order)
559 {
560 	struct snd_soc_dai *dai;
561 	int i, r, ret = 0;
562 
563 	for_each_rtd_dais(rtd, i, dai) {
564 		if (dai->driver->remove_order != order)
565 			continue;
566 
567 		if (dai->probed &&
568 		    dai->driver->remove) {
569 			r = dai->driver->remove(dai);
570 			if (r < 0)
571 				ret = r; /* use last error */
572 		}
573 
574 		dai->probed = 0;
575 	}
576 
577 	return ret;
578 }
579 
580 int snd_soc_pcm_dai_new(struct snd_soc_pcm_runtime *rtd)
581 {
582 	struct snd_soc_dai *dai;
583 	int i;
584 
585 	for_each_rtd_dais(rtd, i, dai) {
586 		if (dai->driver->pcm_new) {
587 			int ret = dai->driver->pcm_new(rtd, dai);
588 			if (ret < 0)
589 				return soc_dai_ret(dai, ret);
590 		}
591 	}
592 
593 	return 0;
594 }
595 
596 int snd_soc_pcm_dai_prepare(struct snd_pcm_substream *substream)
597 {
598 	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
599 	struct snd_soc_dai *dai;
600 	int i, ret;
601 
602 	for_each_rtd_dais(rtd, i, dai) {
603 		if (dai->driver->ops &&
604 		    dai->driver->ops->prepare) {
605 			ret = dai->driver->ops->prepare(substream, dai);
606 			if (ret < 0)
607 				return soc_dai_ret(dai, ret);
608 		}
609 	}
610 
611 	return 0;
612 }
613 
614 static int soc_dai_trigger(struct snd_soc_dai *dai,
615 			   struct snd_pcm_substream *substream, int cmd)
616 {
617 	int ret = 0;
618 
619 	if (dai->driver->ops &&
620 	    dai->driver->ops->trigger)
621 		ret = dai->driver->ops->trigger(substream, cmd, dai);
622 
623 	return soc_dai_ret(dai, ret);
624 }
625 
626 int snd_soc_pcm_dai_trigger(struct snd_pcm_substream *substream,
627 			    int cmd, int rollback)
628 {
629 	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
630 	struct snd_soc_dai *dai;
631 	int i, r, ret = 0;
632 
633 	switch (cmd) {
634 	case SNDRV_PCM_TRIGGER_START:
635 	case SNDRV_PCM_TRIGGER_RESUME:
636 	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
637 		for_each_rtd_dais(rtd, i, dai) {
638 			ret = soc_dai_trigger(dai, substream, cmd);
639 			if (ret < 0)
640 				break;
641 			soc_dai_mark_push(dai, substream, trigger);
642 		}
643 		break;
644 	case SNDRV_PCM_TRIGGER_STOP:
645 	case SNDRV_PCM_TRIGGER_SUSPEND:
646 	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
647 		for_each_rtd_dais(rtd, i, dai) {
648 			if (rollback && !soc_dai_mark_match(dai, substream, trigger))
649 				continue;
650 
651 			r = soc_dai_trigger(dai, substream, cmd);
652 			if (r < 0)
653 				ret = r; /* use last ret */
654 			soc_dai_mark_pop(dai, substream, trigger);
655 		}
656 	}
657 
658 	return ret;
659 }
660 
661 int snd_soc_pcm_dai_bespoke_trigger(struct snd_pcm_substream *substream,
662 				    int cmd)
663 {
664 	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
665 	struct snd_soc_dai *dai;
666 	int i, ret;
667 
668 	for_each_rtd_dais(rtd, i, dai) {
669 		if (dai->driver->ops &&
670 		    dai->driver->ops->bespoke_trigger) {
671 			ret = dai->driver->ops->bespoke_trigger(substream,
672 								cmd, dai);
673 			if (ret < 0)
674 				return soc_dai_ret(dai, ret);
675 		}
676 	}
677 
678 	return 0;
679 }
680 
681 void snd_soc_pcm_dai_delay(struct snd_pcm_substream *substream,
682 			   snd_pcm_sframes_t *cpu_delay,
683 			   snd_pcm_sframes_t *codec_delay)
684 {
685 	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
686 	struct snd_soc_dai *dai;
687 	int i;
688 
689 	/*
690 	 * We're looking for the delay through the full audio path so it needs to
691 	 * be the maximum of the DAIs doing transmit and the maximum of the DAIs
692 	 * doing receive (ie, all CPUs and all CODECs) rather than just the maximum
693 	 * of all DAIs.
694 	 */
695 
696 	/* for CPU */
697 	for_each_rtd_cpu_dais(rtd, i, dai)
698 		if (dai->driver->ops &&
699 		    dai->driver->ops->delay)
700 			*cpu_delay = max(*cpu_delay, dai->driver->ops->delay(substream, dai));
701 
702 	/* for Codec */
703 	for_each_rtd_codec_dais(rtd, i, dai)
704 		if (dai->driver->ops &&
705 		    dai->driver->ops->delay)
706 			*codec_delay = max(*codec_delay, dai->driver->ops->delay(substream, dai));
707 }
708 
709 int snd_soc_dai_compr_startup(struct snd_soc_dai *dai,
710 			      struct snd_compr_stream *cstream)
711 {
712 	int ret = 0;
713 
714 	if (dai->driver->cops &&
715 	    dai->driver->cops->startup)
716 		ret = dai->driver->cops->startup(cstream, dai);
717 
718 	/* mark cstream if succeeded */
719 	if (ret == 0)
720 		soc_dai_mark_push(dai, cstream, compr_startup);
721 
722 	return soc_dai_ret(dai, ret);
723 }
724 EXPORT_SYMBOL_GPL(snd_soc_dai_compr_startup);
725 
726 void snd_soc_dai_compr_shutdown(struct snd_soc_dai *dai,
727 				struct snd_compr_stream *cstream,
728 				int rollback)
729 {
730 	if (rollback && !soc_dai_mark_match(dai, cstream, compr_startup))
731 		return;
732 
733 	if (dai->driver->cops &&
734 	    dai->driver->cops->shutdown)
735 		dai->driver->cops->shutdown(cstream, dai);
736 
737 	/* remove marked cstream */
738 	soc_dai_mark_pop(dai, cstream, compr_startup);
739 }
740 EXPORT_SYMBOL_GPL(snd_soc_dai_compr_shutdown);
741 
742 int snd_soc_dai_compr_trigger(struct snd_soc_dai *dai,
743 			      struct snd_compr_stream *cstream, int cmd)
744 {
745 	int ret = 0;
746 
747 	if (dai->driver->cops &&
748 	    dai->driver->cops->trigger)
749 		ret = dai->driver->cops->trigger(cstream, cmd, dai);
750 
751 	return soc_dai_ret(dai, ret);
752 }
753 EXPORT_SYMBOL_GPL(snd_soc_dai_compr_trigger);
754 
755 int snd_soc_dai_compr_set_params(struct snd_soc_dai *dai,
756 				 struct snd_compr_stream *cstream,
757 				 struct snd_compr_params *params)
758 {
759 	int ret = 0;
760 
761 	if (dai->driver->cops &&
762 	    dai->driver->cops->set_params)
763 		ret = dai->driver->cops->set_params(cstream, params, dai);
764 
765 	return soc_dai_ret(dai, ret);
766 }
767 EXPORT_SYMBOL_GPL(snd_soc_dai_compr_set_params);
768 
769 int snd_soc_dai_compr_get_params(struct snd_soc_dai *dai,
770 				 struct snd_compr_stream *cstream,
771 				 struct snd_codec *params)
772 {
773 	int ret = 0;
774 
775 	if (dai->driver->cops &&
776 	    dai->driver->cops->get_params)
777 		ret = dai->driver->cops->get_params(cstream, params, dai);
778 
779 	return soc_dai_ret(dai, ret);
780 }
781 EXPORT_SYMBOL_GPL(snd_soc_dai_compr_get_params);
782 
783 int snd_soc_dai_compr_ack(struct snd_soc_dai *dai,
784 			  struct snd_compr_stream *cstream,
785 			  size_t bytes)
786 {
787 	int ret = 0;
788 
789 	if (dai->driver->cops &&
790 	    dai->driver->cops->ack)
791 		ret = dai->driver->cops->ack(cstream, bytes, dai);
792 
793 	return soc_dai_ret(dai, ret);
794 }
795 EXPORT_SYMBOL_GPL(snd_soc_dai_compr_ack);
796 
797 int snd_soc_dai_compr_pointer(struct snd_soc_dai *dai,
798 			      struct snd_compr_stream *cstream,
799 			      struct snd_compr_tstamp *tstamp)
800 {
801 	int ret = 0;
802 
803 	if (dai->driver->cops &&
804 	    dai->driver->cops->pointer)
805 		ret = dai->driver->cops->pointer(cstream, tstamp, dai);
806 
807 	return soc_dai_ret(dai, ret);
808 }
809 EXPORT_SYMBOL_GPL(snd_soc_dai_compr_pointer);
810 
811 int snd_soc_dai_compr_set_metadata(struct snd_soc_dai *dai,
812 				   struct snd_compr_stream *cstream,
813 				   struct snd_compr_metadata *metadata)
814 {
815 	int ret = 0;
816 
817 	if (dai->driver->cops &&
818 	    dai->driver->cops->set_metadata)
819 		ret = dai->driver->cops->set_metadata(cstream, metadata, dai);
820 
821 	return soc_dai_ret(dai, ret);
822 }
823 EXPORT_SYMBOL_GPL(snd_soc_dai_compr_set_metadata);
824 
825 int snd_soc_dai_compr_get_metadata(struct snd_soc_dai *dai,
826 				   struct snd_compr_stream *cstream,
827 				   struct snd_compr_metadata *metadata)
828 {
829 	int ret = 0;
830 
831 	if (dai->driver->cops &&
832 	    dai->driver->cops->get_metadata)
833 		ret = dai->driver->cops->get_metadata(cstream, metadata, dai);
834 
835 	return soc_dai_ret(dai, ret);
836 }
837 EXPORT_SYMBOL_GPL(snd_soc_dai_compr_get_metadata);
838