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1// SPDX-License-Identifier: GPL-2.0
2//
3// soc-component.c
4//
5// Copyright 2009-2011 Wolfson Microelectronics PLC.
6// Copyright (C) 2019 Renesas Electronics Corp.
7//
8// Mark Brown <broonie@opensource.wolfsonmicro.com>
9// Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
10//
11#include <linux/module.h>
12#include <linux/pm_runtime.h>
13#include <sound/soc.h>
14#include <linux/bitops.h>
15
16#define soc_component_ret(dai, ret) _soc_component_ret(dai, __func__, ret, -1)
17#define soc_component_ret_reg_rw(dai, ret, reg) _soc_component_ret(dai, __func__, ret, reg)
18static inline int _soc_component_ret(struct snd_soc_component *component,
19 const char *func, int ret, int reg)
20{
21 /* Positive/Zero values are not errors */
22 if (ret >= 0)
23 return ret;
24
25 /* Negative values might be errors */
26 switch (ret) {
27 case -EPROBE_DEFER:
28 case -ENOTSUPP:
29 break;
30 default:
31 if (reg == -1)
32 dev_err(component->dev,
33 "ASoC: error at %s on %s: %d\n",
34 func, component->name, ret);
35 else
36 dev_err(component->dev,
37 "ASoC: error at %s on %s for register: [0x%08x] %d\n",
38 func, component->name, reg, ret);
39 }
40
41 return ret;
42}
43
44static inline int soc_component_field_shift(struct snd_soc_component *component,
45 unsigned int mask)
46{
47 if (!mask) {
48 dev_err(component->dev, "ASoC: error field mask is zero for %s\n",
49 component->name);
50 return 0;
51 }
52
53 return (ffs(mask) - 1);
54}
55
56/*
57 * We might want to check substream by using list.
58 * In such case, we can update these macros.
59 */
60#define soc_component_mark_push(component, substream, tgt) ((component)->mark_##tgt = substream)
61#define soc_component_mark_pop(component, substream, tgt) ((component)->mark_##tgt = NULL)
62#define soc_component_mark_match(component, substream, tgt) ((component)->mark_##tgt == substream)
63
64void snd_soc_component_set_aux(struct snd_soc_component *component,
65 struct snd_soc_aux_dev *aux)
66{
67 component->init = (aux) ? aux->init : NULL;
68}
69
70int snd_soc_component_init(struct snd_soc_component *component)
71{
72 int ret = 0;
73
74 if (component->init)
75 ret = component->init(component);
76
77 return soc_component_ret(component, ret);
78}
79
80/**
81 * snd_soc_component_set_sysclk - configure COMPONENT system or master clock.
82 * @component: COMPONENT
83 * @clk_id: DAI specific clock ID
84 * @source: Source for the clock
85 * @freq: new clock frequency in Hz
86 * @dir: new clock direction - input/output.
87 *
88 * Configures the CODEC master (MCLK) or system (SYSCLK) clocking.
89 */
90int snd_soc_component_set_sysclk(struct snd_soc_component *component,
91 int clk_id, int source, unsigned int freq,
92 int dir)
93{
94 int ret = -ENOTSUPP;
95
96 if (component->driver->set_sysclk)
97 ret = component->driver->set_sysclk(component, clk_id, source,
98 freq, dir);
99
100 return soc_component_ret(component, ret);
101}
102EXPORT_SYMBOL_GPL(snd_soc_component_set_sysclk);
103
104/*
105 * snd_soc_component_set_pll - configure component PLL.
106 * @component: COMPONENT
107 * @pll_id: DAI specific PLL ID
108 * @source: DAI specific source for the PLL
109 * @freq_in: PLL input clock frequency in Hz
110 * @freq_out: requested PLL output clock frequency in Hz
111 *
112 * Configures and enables PLL to generate output clock based on input clock.
113 */
114int snd_soc_component_set_pll(struct snd_soc_component *component, int pll_id,
115 int source, unsigned int freq_in,
116 unsigned int freq_out)
117{
118 int ret = -EINVAL;
119
120 if (component->driver->set_pll)
121 ret = component->driver->set_pll(component, pll_id, source,
122 freq_in, freq_out);
123
124 return soc_component_ret(component, ret);
125}
126EXPORT_SYMBOL_GPL(snd_soc_component_set_pll);
127
128void snd_soc_component_seq_notifier(struct snd_soc_component *component,
129 enum snd_soc_dapm_type type, int subseq)
130{
131 if (component->driver->seq_notifier)
132 component->driver->seq_notifier(component, type, subseq);
133}
134
135int snd_soc_component_stream_event(struct snd_soc_component *component,
136 int event)
137{
138 int ret = 0;
139
140 if (component->driver->stream_event)
141 ret = component->driver->stream_event(component, event);
142
143 return soc_component_ret(component, ret);
144}
145
146int snd_soc_component_set_bias_level(struct snd_soc_component *component,
147 enum snd_soc_bias_level level)
148{
149 int ret = 0;
150
151 if (component->driver->set_bias_level)
152 ret = component->driver->set_bias_level(component, level);
153
154 return soc_component_ret(component, ret);
155}
156
157int snd_soc_component_enable_pin(struct snd_soc_component *component,
158 const char *pin)
159{
160 struct snd_soc_dapm_context *dapm =
161 snd_soc_component_get_dapm(component);
162 return snd_soc_dapm_enable_pin(dapm, pin);
163}
164EXPORT_SYMBOL_GPL(snd_soc_component_enable_pin);
165
166int snd_soc_component_enable_pin_unlocked(struct snd_soc_component *component,
167 const char *pin)
168{
169 struct snd_soc_dapm_context *dapm =
170 snd_soc_component_get_dapm(component);
171 return snd_soc_dapm_enable_pin_unlocked(dapm, pin);
172}
173EXPORT_SYMBOL_GPL(snd_soc_component_enable_pin_unlocked);
174
175int snd_soc_component_disable_pin(struct snd_soc_component *component,
176 const char *pin)
177{
178 struct snd_soc_dapm_context *dapm =
179 snd_soc_component_get_dapm(component);
180 return snd_soc_dapm_disable_pin(dapm, pin);
181}
182EXPORT_SYMBOL_GPL(snd_soc_component_disable_pin);
183
184int snd_soc_component_disable_pin_unlocked(struct snd_soc_component *component,
185 const char *pin)
186{
187 struct snd_soc_dapm_context *dapm =
188 snd_soc_component_get_dapm(component);
189 return snd_soc_dapm_disable_pin_unlocked(dapm, pin);
190}
191EXPORT_SYMBOL_GPL(snd_soc_component_disable_pin_unlocked);
192
193int snd_soc_component_nc_pin(struct snd_soc_component *component,
194 const char *pin)
195{
196 struct snd_soc_dapm_context *dapm =
197 snd_soc_component_get_dapm(component);
198 return snd_soc_dapm_nc_pin(dapm, pin);
199}
200EXPORT_SYMBOL_GPL(snd_soc_component_nc_pin);
201
202int snd_soc_component_nc_pin_unlocked(struct snd_soc_component *component,
203 const char *pin)
204{
205 struct snd_soc_dapm_context *dapm =
206 snd_soc_component_get_dapm(component);
207 return snd_soc_dapm_nc_pin_unlocked(dapm, pin);
208}
209EXPORT_SYMBOL_GPL(snd_soc_component_nc_pin_unlocked);
210
211int snd_soc_component_get_pin_status(struct snd_soc_component *component,
212 const char *pin)
213{
214 struct snd_soc_dapm_context *dapm =
215 snd_soc_component_get_dapm(component);
216 return snd_soc_dapm_get_pin_status(dapm, pin);
217}
218EXPORT_SYMBOL_GPL(snd_soc_component_get_pin_status);
219
220int snd_soc_component_force_enable_pin(struct snd_soc_component *component,
221 const char *pin)
222{
223 struct snd_soc_dapm_context *dapm =
224 snd_soc_component_get_dapm(component);
225 return snd_soc_dapm_force_enable_pin(dapm, pin);
226}
227EXPORT_SYMBOL_GPL(snd_soc_component_force_enable_pin);
228
229int snd_soc_component_force_enable_pin_unlocked(
230 struct snd_soc_component *component,
231 const char *pin)
232{
233 struct snd_soc_dapm_context *dapm =
234 snd_soc_component_get_dapm(component);
235 return snd_soc_dapm_force_enable_pin_unlocked(dapm, pin);
236}
237EXPORT_SYMBOL_GPL(snd_soc_component_force_enable_pin_unlocked);
238
239/**
240 * snd_soc_component_set_jack - configure component jack.
241 * @component: COMPONENTs
242 * @jack: structure to use for the jack
243 * @data: can be used if codec driver need extra data for configuring jack
244 *
245 * Configures and enables jack detection function.
246 */
247int snd_soc_component_set_jack(struct snd_soc_component *component,
248 struct snd_soc_jack *jack, void *data)
249{
250 int ret = -ENOTSUPP;
251
252 if (component->driver->set_jack)
253 ret = component->driver->set_jack(component, jack, data);
254
255 return soc_component_ret(component, ret);
256}
257EXPORT_SYMBOL_GPL(snd_soc_component_set_jack);
258
259int snd_soc_component_module_get(struct snd_soc_component *component,
260 void *mark, int upon_open)
261{
262 int ret = 0;
263
264 if (component->driver->module_get_upon_open == !!upon_open &&
265 !try_module_get(component->dev->driver->owner))
266 ret = -ENODEV;
267
268 /* mark module if succeeded */
269 if (ret == 0)
270 soc_component_mark_push(component, mark, module);
271
272 return soc_component_ret(component, ret);
273}
274
275void snd_soc_component_module_put(struct snd_soc_component *component,
276 void *mark, int upon_open, int rollback)
277{
278 if (rollback && !soc_component_mark_match(component, mark, module))
279 return;
280
281 if (component->driver->module_get_upon_open == !!upon_open)
282 module_put(component->dev->driver->owner);
283
284 /* remove the mark from module */
285 soc_component_mark_pop(component, mark, module);
286}
287
288int snd_soc_component_open(struct snd_soc_component *component,
289 struct snd_pcm_substream *substream)
290{
291 int ret = 0;
292
293 if (component->driver->open)
294 ret = component->driver->open(component, substream);
295
296 /* mark substream if succeeded */
297 if (ret == 0)
298 soc_component_mark_push(component, substream, open);
299
300 return soc_component_ret(component, ret);
301}
302
303int snd_soc_component_close(struct snd_soc_component *component,
304 struct snd_pcm_substream *substream,
305 int rollback)
306{
307 int ret = 0;
308
309 if (rollback && !soc_component_mark_match(component, substream, open))
310 return 0;
311
312 if (component->driver->close)
313 ret = component->driver->close(component, substream);
314
315 /* remove marked substream */
316 soc_component_mark_pop(component, substream, open);
317
318 return soc_component_ret(component, ret);
319}
320
321void snd_soc_component_suspend(struct snd_soc_component *component)
322{
323 if (component->driver->suspend)
324 component->driver->suspend(component);
325 component->suspended = 1;
326}
327
328void snd_soc_component_resume(struct snd_soc_component *component)
329{
330 if (component->driver->resume)
331 component->driver->resume(component);
332 component->suspended = 0;
333}
334
335int snd_soc_component_is_suspended(struct snd_soc_component *component)
336{
337 return component->suspended;
338}
339
340int snd_soc_component_probe(struct snd_soc_component *component)
341{
342 int ret = 0;
343
344 if (component->driver->probe)
345 ret = component->driver->probe(component);
346
347 return soc_component_ret(component, ret);
348}
349
350void snd_soc_component_remove(struct snd_soc_component *component)
351{
352 if (component->driver->remove)
353 component->driver->remove(component);
354}
355
356int snd_soc_component_of_xlate_dai_id(struct snd_soc_component *component,
357 struct device_node *ep)
358{
359 int ret = -ENOTSUPP;
360
361 if (component->driver->of_xlate_dai_id)
362 ret = component->driver->of_xlate_dai_id(component, ep);
363
364 return soc_component_ret(component, ret);
365}
366
367int snd_soc_component_of_xlate_dai_name(struct snd_soc_component *component,
368 const struct of_phandle_args *args,
369 const char **dai_name)
370{
371 if (component->driver->of_xlate_dai_name)
372 return component->driver->of_xlate_dai_name(component,
373 args, dai_name);
374 /*
375 * Don't use soc_component_ret here because we may not want to report
376 * the error just yet. If a device has more than one component, the
377 * first may not match and we don't want spam the log with this.
378 */
379 return -ENOTSUPP;
380}
381
382void snd_soc_component_setup_regmap(struct snd_soc_component *component)
383{
384 int val_bytes = regmap_get_val_bytes(component->regmap);
385
386 /* Errors are legitimate for non-integer byte multiples */
387 if (val_bytes > 0)
388 component->val_bytes = val_bytes;
389}
390
391#ifdef CONFIG_REGMAP
392
393/**
394 * snd_soc_component_init_regmap() - Initialize regmap instance for the
395 * component
396 * @component: The component for which to initialize the regmap instance
397 * @regmap: The regmap instance that should be used by the component
398 *
399 * This function allows deferred assignment of the regmap instance that is
400 * associated with the component. Only use this if the regmap instance is not
401 * yet ready when the component is registered. The function must also be called
402 * before the first IO attempt of the component.
403 */
404void snd_soc_component_init_regmap(struct snd_soc_component *component,
405 struct regmap *regmap)
406{
407 component->regmap = regmap;
408 snd_soc_component_setup_regmap(component);
409}
410EXPORT_SYMBOL_GPL(snd_soc_component_init_regmap);
411
412/**
413 * snd_soc_component_exit_regmap() - De-initialize regmap instance for the
414 * component
415 * @component: The component for which to de-initialize the regmap instance
416 *
417 * Calls regmap_exit() on the regmap instance associated to the component and
418 * removes the regmap instance from the component.
419 *
420 * This function should only be used if snd_soc_component_init_regmap() was used
421 * to initialize the regmap instance.
422 */
423void snd_soc_component_exit_regmap(struct snd_soc_component *component)
424{
425 regmap_exit(component->regmap);
426 component->regmap = NULL;
427}
428EXPORT_SYMBOL_GPL(snd_soc_component_exit_regmap);
429
430#endif
431
432int snd_soc_component_compr_open(struct snd_soc_component *component,
433 struct snd_compr_stream *cstream)
434{
435 int ret = 0;
436
437 if (component->driver->compress_ops &&
438 component->driver->compress_ops->open)
439 ret = component->driver->compress_ops->open(component, cstream);
440
441 /* mark substream if succeeded */
442 if (ret == 0)
443 soc_component_mark_push(component, cstream, compr_open);
444
445 return soc_component_ret(component, ret);
446}
447EXPORT_SYMBOL_GPL(snd_soc_component_compr_open);
448
449void snd_soc_component_compr_free(struct snd_soc_component *component,
450 struct snd_compr_stream *cstream,
451 int rollback)
452{
453 if (rollback && !soc_component_mark_match(component, cstream, compr_open))
454 return;
455
456 if (component->driver->compress_ops &&
457 component->driver->compress_ops->free)
458 component->driver->compress_ops->free(component, cstream);
459
460 /* remove marked substream */
461 soc_component_mark_pop(component, cstream, compr_open);
462}
463EXPORT_SYMBOL_GPL(snd_soc_component_compr_free);
464
465int snd_soc_component_compr_trigger(struct snd_compr_stream *cstream, int cmd)
466{
467 struct snd_soc_pcm_runtime *rtd = cstream->private_data;
468 struct snd_soc_component *component;
469 int i, ret;
470
471 for_each_rtd_components(rtd, i, component) {
472 if (component->driver->compress_ops &&
473 component->driver->compress_ops->trigger) {
474 ret = component->driver->compress_ops->trigger(
475 component, cstream, cmd);
476 if (ret < 0)
477 return soc_component_ret(component, ret);
478 }
479 }
480
481 return 0;
482}
483EXPORT_SYMBOL_GPL(snd_soc_component_compr_trigger);
484
485int snd_soc_component_compr_set_params(struct snd_compr_stream *cstream,
486 struct snd_compr_params *params)
487{
488 struct snd_soc_pcm_runtime *rtd = cstream->private_data;
489 struct snd_soc_component *component;
490 int i, ret;
491
492 for_each_rtd_components(rtd, i, component) {
493 if (component->driver->compress_ops &&
494 component->driver->compress_ops->set_params) {
495 ret = component->driver->compress_ops->set_params(
496 component, cstream, params);
497 if (ret < 0)
498 return soc_component_ret(component, ret);
499 }
500 }
501
502 return 0;
503}
504EXPORT_SYMBOL_GPL(snd_soc_component_compr_set_params);
505
506int snd_soc_component_compr_get_params(struct snd_compr_stream *cstream,
507 struct snd_codec *params)
508{
509 struct snd_soc_pcm_runtime *rtd = cstream->private_data;
510 struct snd_soc_component *component;
511 int i, ret;
512
513 for_each_rtd_components(rtd, i, component) {
514 if (component->driver->compress_ops &&
515 component->driver->compress_ops->get_params) {
516 ret = component->driver->compress_ops->get_params(
517 component, cstream, params);
518 return soc_component_ret(component, ret);
519 }
520 }
521
522 return 0;
523}
524EXPORT_SYMBOL_GPL(snd_soc_component_compr_get_params);
525
526int snd_soc_component_compr_get_caps(struct snd_compr_stream *cstream,
527 struct snd_compr_caps *caps)
528{
529 struct snd_soc_pcm_runtime *rtd = cstream->private_data;
530 struct snd_soc_component *component;
531 int i, ret = 0;
532
533 mutex_lock_nested(&rtd->card->pcm_mutex, rtd->card->pcm_subclass);
534
535 for_each_rtd_components(rtd, i, component) {
536 if (component->driver->compress_ops &&
537 component->driver->compress_ops->get_caps) {
538 ret = component->driver->compress_ops->get_caps(
539 component, cstream, caps);
540 break;
541 }
542 }
543
544 mutex_unlock(&rtd->card->pcm_mutex);
545
546 return soc_component_ret(component, ret);
547}
548EXPORT_SYMBOL_GPL(snd_soc_component_compr_get_caps);
549
550int snd_soc_component_compr_get_codec_caps(struct snd_compr_stream *cstream,
551 struct snd_compr_codec_caps *codec)
552{
553 struct snd_soc_pcm_runtime *rtd = cstream->private_data;
554 struct snd_soc_component *component;
555 int i, ret = 0;
556
557 mutex_lock_nested(&rtd->card->pcm_mutex, rtd->card->pcm_subclass);
558
559 for_each_rtd_components(rtd, i, component) {
560 if (component->driver->compress_ops &&
561 component->driver->compress_ops->get_codec_caps) {
562 ret = component->driver->compress_ops->get_codec_caps(
563 component, cstream, codec);
564 break;
565 }
566 }
567
568 mutex_unlock(&rtd->card->pcm_mutex);
569
570 return soc_component_ret(component, ret);
571}
572EXPORT_SYMBOL_GPL(snd_soc_component_compr_get_codec_caps);
573
574int snd_soc_component_compr_ack(struct snd_compr_stream *cstream, size_t bytes)
575{
576 struct snd_soc_pcm_runtime *rtd = cstream->private_data;
577 struct snd_soc_component *component;
578 int i, ret;
579
580 for_each_rtd_components(rtd, i, component) {
581 if (component->driver->compress_ops &&
582 component->driver->compress_ops->ack) {
583 ret = component->driver->compress_ops->ack(
584 component, cstream, bytes);
585 if (ret < 0)
586 return soc_component_ret(component, ret);
587 }
588 }
589
590 return 0;
591}
592EXPORT_SYMBOL_GPL(snd_soc_component_compr_ack);
593
594int snd_soc_component_compr_pointer(struct snd_compr_stream *cstream,
595 struct snd_compr_tstamp *tstamp)
596{
597 struct snd_soc_pcm_runtime *rtd = cstream->private_data;
598 struct snd_soc_component *component;
599 int i, ret;
600
601 for_each_rtd_components(rtd, i, component) {
602 if (component->driver->compress_ops &&
603 component->driver->compress_ops->pointer) {
604 ret = component->driver->compress_ops->pointer(
605 component, cstream, tstamp);
606 return soc_component_ret(component, ret);
607 }
608 }
609
610 return 0;
611}
612EXPORT_SYMBOL_GPL(snd_soc_component_compr_pointer);
613
614int snd_soc_component_compr_copy(struct snd_compr_stream *cstream,
615 char __user *buf, size_t count)
616{
617 struct snd_soc_pcm_runtime *rtd = cstream->private_data;
618 struct snd_soc_component *component;
619 int i, ret = 0;
620
621 mutex_lock_nested(&rtd->card->pcm_mutex, rtd->card->pcm_subclass);
622
623 for_each_rtd_components(rtd, i, component) {
624 if (component->driver->compress_ops &&
625 component->driver->compress_ops->copy) {
626 ret = component->driver->compress_ops->copy(
627 component, cstream, buf, count);
628 break;
629 }
630 }
631
632 mutex_unlock(&rtd->card->pcm_mutex);
633
634 return soc_component_ret(component, ret);
635}
636EXPORT_SYMBOL_GPL(snd_soc_component_compr_copy);
637
638int snd_soc_component_compr_set_metadata(struct snd_compr_stream *cstream,
639 struct snd_compr_metadata *metadata)
640{
641 struct snd_soc_pcm_runtime *rtd = cstream->private_data;
642 struct snd_soc_component *component;
643 int i, ret;
644
645 for_each_rtd_components(rtd, i, component) {
646 if (component->driver->compress_ops &&
647 component->driver->compress_ops->set_metadata) {
648 ret = component->driver->compress_ops->set_metadata(
649 component, cstream, metadata);
650 if (ret < 0)
651 return soc_component_ret(component, ret);
652 }
653 }
654
655 return 0;
656}
657EXPORT_SYMBOL_GPL(snd_soc_component_compr_set_metadata);
658
659int snd_soc_component_compr_get_metadata(struct snd_compr_stream *cstream,
660 struct snd_compr_metadata *metadata)
661{
662 struct snd_soc_pcm_runtime *rtd = cstream->private_data;
663 struct snd_soc_component *component;
664 int i, ret;
665
666 for_each_rtd_components(rtd, i, component) {
667 if (component->driver->compress_ops &&
668 component->driver->compress_ops->get_metadata) {
669 ret = component->driver->compress_ops->get_metadata(
670 component, cstream, metadata);
671 return soc_component_ret(component, ret);
672 }
673 }
674
675 return 0;
676}
677EXPORT_SYMBOL_GPL(snd_soc_component_compr_get_metadata);
678
679static unsigned int soc_component_read_no_lock(
680 struct snd_soc_component *component,
681 unsigned int reg)
682{
683 int ret;
684 unsigned int val = 0;
685
686 if (component->regmap)
687 ret = regmap_read(component->regmap, reg, &val);
688 else if (component->driver->read) {
689 ret = 0;
690 val = component->driver->read(component, reg);
691 }
692 else
693 ret = -EIO;
694
695 if (ret < 0)
696 return soc_component_ret_reg_rw(component, ret, reg);
697
698 return val;
699}
700
701/**
702 * snd_soc_component_read() - Read register value
703 * @component: Component to read from
704 * @reg: Register to read
705 *
706 * Return: read value
707 */
708unsigned int snd_soc_component_read(struct snd_soc_component *component,
709 unsigned int reg)
710{
711 unsigned int val;
712
713 mutex_lock(&component->io_mutex);
714 val = soc_component_read_no_lock(component, reg);
715 mutex_unlock(&component->io_mutex);
716
717 return val;
718}
719EXPORT_SYMBOL_GPL(snd_soc_component_read);
720
721static int soc_component_write_no_lock(
722 struct snd_soc_component *component,
723 unsigned int reg, unsigned int val)
724{
725 int ret = -EIO;
726
727 if (component->regmap)
728 ret = regmap_write(component->regmap, reg, val);
729 else if (component->driver->write)
730 ret = component->driver->write(component, reg, val);
731
732 return soc_component_ret_reg_rw(component, ret, reg);
733}
734
735/**
736 * snd_soc_component_write() - Write register value
737 * @component: Component to write to
738 * @reg: Register to write
739 * @val: Value to write to the register
740 *
741 * Return: 0 on success, a negative error code otherwise.
742 */
743int snd_soc_component_write(struct snd_soc_component *component,
744 unsigned int reg, unsigned int val)
745{
746 int ret;
747
748 mutex_lock(&component->io_mutex);
749 ret = soc_component_write_no_lock(component, reg, val);
750 mutex_unlock(&component->io_mutex);
751
752 return ret;
753}
754EXPORT_SYMBOL_GPL(snd_soc_component_write);
755
756static int snd_soc_component_update_bits_legacy(
757 struct snd_soc_component *component, unsigned int reg,
758 unsigned int mask, unsigned int val, bool *change)
759{
760 unsigned int old, new;
761 int ret = 0;
762
763 mutex_lock(&component->io_mutex);
764
765 old = soc_component_read_no_lock(component, reg);
766
767 new = (old & ~mask) | (val & mask);
768 *change = old != new;
769 if (*change)
770 ret = soc_component_write_no_lock(component, reg, new);
771
772 mutex_unlock(&component->io_mutex);
773
774 return soc_component_ret_reg_rw(component, ret, reg);
775}
776
777/**
778 * snd_soc_component_update_bits() - Perform read/modify/write cycle
779 * @component: Component to update
780 * @reg: Register to update
781 * @mask: Mask that specifies which bits to update
782 * @val: New value for the bits specified by mask
783 *
784 * Return: 1 if the operation was successful and the value of the register
785 * changed, 0 if the operation was successful, but the value did not change.
786 * Returns a negative error code otherwise.
787 */
788int snd_soc_component_update_bits(struct snd_soc_component *component,
789 unsigned int reg, unsigned int mask, unsigned int val)
790{
791 bool change;
792 int ret;
793
794 if (component->regmap)
795 ret = regmap_update_bits_check(component->regmap, reg, mask,
796 val, &change);
797 else
798 ret = snd_soc_component_update_bits_legacy(component, reg,
799 mask, val, &change);
800
801 if (ret < 0)
802 return soc_component_ret_reg_rw(component, ret, reg);
803 return change;
804}
805EXPORT_SYMBOL_GPL(snd_soc_component_update_bits);
806
807/**
808 * snd_soc_component_update_bits_async() - Perform asynchronous
809 * read/modify/write cycle
810 * @component: Component to update
811 * @reg: Register to update
812 * @mask: Mask that specifies which bits to update
813 * @val: New value for the bits specified by mask
814 *
815 * This function is similar to snd_soc_component_update_bits(), but the update
816 * operation is scheduled asynchronously. This means it may not be completed
817 * when the function returns. To make sure that all scheduled updates have been
818 * completed snd_soc_component_async_complete() must be called.
819 *
820 * Return: 1 if the operation was successful and the value of the register
821 * changed, 0 if the operation was successful, but the value did not change.
822 * Returns a negative error code otherwise.
823 */
824int snd_soc_component_update_bits_async(struct snd_soc_component *component,
825 unsigned int reg, unsigned int mask, unsigned int val)
826{
827 bool change;
828 int ret;
829
830 if (component->regmap)
831 ret = regmap_update_bits_check_async(component->regmap, reg,
832 mask, val, &change);
833 else
834 ret = snd_soc_component_update_bits_legacy(component, reg,
835 mask, val, &change);
836
837 if (ret < 0)
838 return soc_component_ret_reg_rw(component, ret, reg);
839 return change;
840}
841EXPORT_SYMBOL_GPL(snd_soc_component_update_bits_async);
842
843/**
844 * snd_soc_component_read_field() - Read register field value
845 * @component: Component to read from
846 * @reg: Register to read
847 * @mask: mask of the register field
848 *
849 * Return: read value of register field.
850 */
851unsigned int snd_soc_component_read_field(struct snd_soc_component *component,
852 unsigned int reg, unsigned int mask)
853{
854 unsigned int val;
855
856 val = snd_soc_component_read(component, reg);
857
858 val = (val & mask) >> soc_component_field_shift(component, mask);
859
860 return val;
861}
862EXPORT_SYMBOL_GPL(snd_soc_component_read_field);
863
864/**
865 * snd_soc_component_write_field() - write to register field
866 * @component: Component to write to
867 * @reg: Register to write
868 * @mask: mask of the register field to update
869 * @val: value of the field to write
870 *
871 * Return: 1 for change, otherwise 0.
872 */
873int snd_soc_component_write_field(struct snd_soc_component *component,
874 unsigned int reg, unsigned int mask,
875 unsigned int val)
876{
877
878 val = (val << soc_component_field_shift(component, mask)) & mask;
879
880 return snd_soc_component_update_bits(component, reg, mask, val);
881}
882EXPORT_SYMBOL_GPL(snd_soc_component_write_field);
883
884/**
885 * snd_soc_component_async_complete() - Ensure asynchronous I/O has completed
886 * @component: Component for which to wait
887 *
888 * This function blocks until all asynchronous I/O which has previously been
889 * scheduled using snd_soc_component_update_bits_async() has completed.
890 */
891void snd_soc_component_async_complete(struct snd_soc_component *component)
892{
893 if (component->regmap)
894 regmap_async_complete(component->regmap);
895}
896EXPORT_SYMBOL_GPL(snd_soc_component_async_complete);
897
898/**
899 * snd_soc_component_test_bits - Test register for change
900 * @component: component
901 * @reg: Register to test
902 * @mask: Mask that specifies which bits to test
903 * @value: Value to test against
904 *
905 * Tests a register with a new value and checks if the new value is
906 * different from the old value.
907 *
908 * Return: 1 for change, otherwise 0.
909 */
910int snd_soc_component_test_bits(struct snd_soc_component *component,
911 unsigned int reg, unsigned int mask, unsigned int value)
912{
913 unsigned int old, new;
914
915 old = snd_soc_component_read(component, reg);
916 new = (old & ~mask) | value;
917 return old != new;
918}
919EXPORT_SYMBOL_GPL(snd_soc_component_test_bits);
920
921int snd_soc_pcm_component_pointer(struct snd_pcm_substream *substream)
922{
923 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
924 struct snd_soc_component *component;
925 int i;
926
927 /* FIXME: use 1st pointer */
928 for_each_rtd_components(rtd, i, component)
929 if (component->driver->pointer)
930 return component->driver->pointer(component, substream);
931
932 return 0;
933}
934
935static bool snd_soc_component_is_codec_on_rtd(struct snd_soc_pcm_runtime *rtd,
936 struct snd_soc_component *component)
937{
938 struct snd_soc_dai *dai;
939 int i;
940
941 for_each_rtd_codec_dais(rtd, i, dai) {
942 if (dai->component == component)
943 return true;
944 }
945
946 return false;
947}
948
949void snd_soc_pcm_component_delay(struct snd_pcm_substream *substream,
950 snd_pcm_sframes_t *cpu_delay,
951 snd_pcm_sframes_t *codec_delay)
952{
953 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
954 struct snd_soc_component *component;
955 snd_pcm_sframes_t delay;
956 int i;
957
958 /*
959 * We're looking for the delay through the full audio path so it needs to
960 * be the maximum of the Components doing transmit and the maximum of the
961 * Components doing receive (ie, all CPUs and all CODECs) rather than
962 * just the maximum of all Components.
963 */
964 for_each_rtd_components(rtd, i, component) {
965 if (!component->driver->delay)
966 continue;
967
968 delay = component->driver->delay(component, substream);
969
970 if (snd_soc_component_is_codec_on_rtd(rtd, component))
971 *codec_delay = max(*codec_delay, delay);
972 else
973 *cpu_delay = max(*cpu_delay, delay);
974 }
975}
976
977int snd_soc_pcm_component_ioctl(struct snd_pcm_substream *substream,
978 unsigned int cmd, void *arg)
979{
980 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
981 struct snd_soc_component *component;
982 int i;
983
984 /* FIXME: use 1st ioctl */
985 for_each_rtd_components(rtd, i, component)
986 if (component->driver->ioctl)
987 return soc_component_ret(
988 component,
989 component->driver->ioctl(component,
990 substream, cmd, arg));
991
992 return snd_pcm_lib_ioctl(substream, cmd, arg);
993}
994
995int snd_soc_pcm_component_sync_stop(struct snd_pcm_substream *substream)
996{
997 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
998 struct snd_soc_component *component;
999 int i, ret;
1000
1001 for_each_rtd_components(rtd, i, component) {
1002 if (component->driver->sync_stop) {
1003 ret = component->driver->sync_stop(component,
1004 substream);
1005 if (ret < 0)
1006 return soc_component_ret(component, ret);
1007 }
1008 }
1009
1010 return 0;
1011}
1012
1013int snd_soc_pcm_component_copy_user(struct snd_pcm_substream *substream,
1014 int channel, unsigned long pos,
1015 void __user *buf, unsigned long bytes)
1016{
1017 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
1018 struct snd_soc_component *component;
1019 int i;
1020
1021 /* FIXME. it returns 1st copy now */
1022 for_each_rtd_components(rtd, i, component)
1023 if (component->driver->copy_user)
1024 return soc_component_ret(
1025 component,
1026 component->driver->copy_user(
1027 component, substream, channel,
1028 pos, buf, bytes));
1029
1030 return -EINVAL;
1031}
1032
1033struct page *snd_soc_pcm_component_page(struct snd_pcm_substream *substream,
1034 unsigned long offset)
1035{
1036 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
1037 struct snd_soc_component *component;
1038 struct page *page;
1039 int i;
1040
1041 /* FIXME. it returns 1st page now */
1042 for_each_rtd_components(rtd, i, component) {
1043 if (component->driver->page) {
1044 page = component->driver->page(component,
1045 substream, offset);
1046 if (page)
1047 return page;
1048 }
1049 }
1050
1051 return NULL;
1052}
1053
1054int snd_soc_pcm_component_mmap(struct snd_pcm_substream *substream,
1055 struct vm_area_struct *vma)
1056{
1057 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
1058 struct snd_soc_component *component;
1059 int i;
1060
1061 /* FIXME. it returns 1st mmap now */
1062 for_each_rtd_components(rtd, i, component)
1063 if (component->driver->mmap)
1064 return soc_component_ret(
1065 component,
1066 component->driver->mmap(component,
1067 substream, vma));
1068
1069 return -EINVAL;
1070}
1071
1072int snd_soc_pcm_component_new(struct snd_soc_pcm_runtime *rtd)
1073{
1074 struct snd_soc_component *component;
1075 int ret;
1076 int i;
1077
1078 for_each_rtd_components(rtd, i, component) {
1079 if (component->driver->pcm_construct) {
1080 ret = component->driver->pcm_construct(component, rtd);
1081 if (ret < 0)
1082 return soc_component_ret(component, ret);
1083 }
1084 }
1085
1086 return 0;
1087}
1088
1089void snd_soc_pcm_component_free(struct snd_soc_pcm_runtime *rtd)
1090{
1091 struct snd_soc_component *component;
1092 int i;
1093
1094 if (!rtd->pcm)
1095 return;
1096
1097 for_each_rtd_components(rtd, i, component)
1098 if (component->driver->pcm_destruct)
1099 component->driver->pcm_destruct(component, rtd->pcm);
1100}
1101
1102int snd_soc_pcm_component_prepare(struct snd_pcm_substream *substream)
1103{
1104 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
1105 struct snd_soc_component *component;
1106 int i, ret;
1107
1108 for_each_rtd_components(rtd, i, component) {
1109 if (component->driver->prepare) {
1110 ret = component->driver->prepare(component, substream);
1111 if (ret < 0)
1112 return soc_component_ret(component, ret);
1113 }
1114 }
1115
1116 return 0;
1117}
1118
1119int snd_soc_pcm_component_hw_params(struct snd_pcm_substream *substream,
1120 struct snd_pcm_hw_params *params)
1121{
1122 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
1123 struct snd_soc_component *component;
1124 int i, ret;
1125
1126 for_each_rtd_components(rtd, i, component) {
1127 if (component->driver->hw_params) {
1128 ret = component->driver->hw_params(component,
1129 substream, params);
1130 if (ret < 0)
1131 return soc_component_ret(component, ret);
1132 }
1133 /* mark substream if succeeded */
1134 soc_component_mark_push(component, substream, hw_params);
1135 }
1136
1137 return 0;
1138}
1139
1140void snd_soc_pcm_component_hw_free(struct snd_pcm_substream *substream,
1141 int rollback)
1142{
1143 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
1144 struct snd_soc_component *component;
1145 int i, ret;
1146
1147 for_each_rtd_components(rtd, i, component) {
1148 if (rollback && !soc_component_mark_match(component, substream, hw_params))
1149 continue;
1150
1151 if (component->driver->hw_free) {
1152 ret = component->driver->hw_free(component, substream);
1153 if (ret < 0)
1154 soc_component_ret(component, ret);
1155 }
1156
1157 /* remove marked substream */
1158 soc_component_mark_pop(component, substream, hw_params);
1159 }
1160}
1161
1162static int soc_component_trigger(struct snd_soc_component *component,
1163 struct snd_pcm_substream *substream,
1164 int cmd)
1165{
1166 int ret = 0;
1167
1168 if (component->driver->trigger)
1169 ret = component->driver->trigger(component, substream, cmd);
1170
1171 return soc_component_ret(component, ret);
1172}
1173
1174int snd_soc_pcm_component_trigger(struct snd_pcm_substream *substream,
1175 int cmd, int rollback)
1176{
1177 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
1178 struct snd_soc_component *component;
1179 int i, r, ret = 0;
1180
1181 switch (cmd) {
1182 case SNDRV_PCM_TRIGGER_START:
1183 case SNDRV_PCM_TRIGGER_RESUME:
1184 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
1185 for_each_rtd_components(rtd, i, component) {
1186 ret = soc_component_trigger(component, substream, cmd);
1187 if (ret < 0)
1188 break;
1189 soc_component_mark_push(component, substream, trigger);
1190 }
1191 break;
1192 case SNDRV_PCM_TRIGGER_STOP:
1193 case SNDRV_PCM_TRIGGER_SUSPEND:
1194 case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
1195 for_each_rtd_components(rtd, i, component) {
1196 if (rollback && !soc_component_mark_match(component, substream, trigger))
1197 continue;
1198
1199 r = soc_component_trigger(component, substream, cmd);
1200 if (r < 0)
1201 ret = r; /* use last ret */
1202 soc_component_mark_pop(component, substream, trigger);
1203 }
1204 }
1205
1206 return ret;
1207}
1208
1209int snd_soc_pcm_component_pm_runtime_get(struct snd_soc_pcm_runtime *rtd,
1210 void *stream)
1211{
1212 struct snd_soc_component *component;
1213 int i;
1214
1215 for_each_rtd_components(rtd, i, component) {
1216 int ret = pm_runtime_get_sync(component->dev);
1217 if (ret < 0 && ret != -EACCES) {
1218 pm_runtime_put_noidle(component->dev);
1219 return soc_component_ret(component, ret);
1220 }
1221 /* mark stream if succeeded */
1222 soc_component_mark_push(component, stream, pm);
1223 }
1224
1225 return 0;
1226}
1227
1228void snd_soc_pcm_component_pm_runtime_put(struct snd_soc_pcm_runtime *rtd,
1229 void *stream, int rollback)
1230{
1231 struct snd_soc_component *component;
1232 int i;
1233
1234 for_each_rtd_components(rtd, i, component) {
1235 if (rollback && !soc_component_mark_match(component, stream, pm))
1236 continue;
1237
1238 pm_runtime_mark_last_busy(component->dev);
1239 pm_runtime_put_autosuspend(component->dev);
1240
1241 /* remove marked stream */
1242 soc_component_mark_pop(component, stream, pm);
1243 }
1244}
1245
1246int snd_soc_pcm_component_ack(struct snd_pcm_substream *substream)
1247{
1248 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
1249 struct snd_soc_component *component;
1250 int i;
1251
1252 /* FIXME: use 1st pointer */
1253 for_each_rtd_components(rtd, i, component)
1254 if (component->driver->ack)
1255 return component->driver->ack(component, substream);
1256
1257 return 0;
1258}
1// SPDX-License-Identifier: GPL-2.0
2//
3// soc-component.c
4//
5// Copyright 2009-2011 Wolfson Microelectronics PLC.
6// Copyright (C) 2019 Renesas Electronics Corp.
7//
8// Mark Brown <broonie@opensource.wolfsonmicro.com>
9// Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
10//
11#include <linux/module.h>
12#include <linux/pm_runtime.h>
13#include <sound/soc.h>
14#include <linux/bitops.h>
15
16#define soc_component_ret(dai, ret) _soc_component_ret(dai, __func__, ret, -1)
17#define soc_component_ret_reg_rw(dai, ret, reg) _soc_component_ret(dai, __func__, ret, reg)
18static inline int _soc_component_ret(struct snd_soc_component *component,
19 const char *func, int ret, int reg)
20{
21 /* Positive/Zero values are not errors */
22 if (ret >= 0)
23 return ret;
24
25 /* Negative values might be errors */
26 switch (ret) {
27 case -EPROBE_DEFER:
28 case -ENOTSUPP:
29 break;
30 default:
31 if (reg == -1)
32 dev_err(component->dev,
33 "ASoC: error at %s on %s: %d\n",
34 func, component->name, ret);
35 else
36 dev_err(component->dev,
37 "ASoC: error at %s on %s for register: [0x%08x] %d\n",
38 func, component->name, reg, ret);
39 }
40
41 return ret;
42}
43
44static inline int soc_component_field_shift(struct snd_soc_component *component,
45 unsigned int mask)
46{
47 if (!mask) {
48 dev_err(component->dev, "ASoC: error field mask is zero for %s\n",
49 component->name);
50 return 0;
51 }
52
53 return (ffs(mask) - 1);
54}
55
56/*
57 * We might want to check substream by using list.
58 * In such case, we can update these macros.
59 */
60#define soc_component_mark_push(component, substream, tgt) ((component)->mark_##tgt = substream)
61#define soc_component_mark_pop(component, substream, tgt) ((component)->mark_##tgt = NULL)
62#define soc_component_mark_match(component, substream, tgt) ((component)->mark_##tgt == substream)
63
64void snd_soc_component_set_aux(struct snd_soc_component *component,
65 struct snd_soc_aux_dev *aux)
66{
67 component->init = (aux) ? aux->init : NULL;
68}
69
70int snd_soc_component_init(struct snd_soc_component *component)
71{
72 int ret = 0;
73
74 if (component->init)
75 ret = component->init(component);
76
77 return soc_component_ret(component, ret);
78}
79
80/**
81 * snd_soc_component_set_sysclk - configure COMPONENT system or master clock.
82 * @component: COMPONENT
83 * @clk_id: DAI specific clock ID
84 * @source: Source for the clock
85 * @freq: new clock frequency in Hz
86 * @dir: new clock direction - input/output.
87 *
88 * Configures the CODEC master (MCLK) or system (SYSCLK) clocking.
89 */
90int snd_soc_component_set_sysclk(struct snd_soc_component *component,
91 int clk_id, int source, unsigned int freq,
92 int dir)
93{
94 int ret = -ENOTSUPP;
95
96 if (component->driver->set_sysclk)
97 ret = component->driver->set_sysclk(component, clk_id, source,
98 freq, dir);
99
100 return soc_component_ret(component, ret);
101}
102EXPORT_SYMBOL_GPL(snd_soc_component_set_sysclk);
103
104/*
105 * snd_soc_component_set_pll - configure component PLL.
106 * @component: COMPONENT
107 * @pll_id: DAI specific PLL ID
108 * @source: DAI specific source for the PLL
109 * @freq_in: PLL input clock frequency in Hz
110 * @freq_out: requested PLL output clock frequency in Hz
111 *
112 * Configures and enables PLL to generate output clock based on input clock.
113 */
114int snd_soc_component_set_pll(struct snd_soc_component *component, int pll_id,
115 int source, unsigned int freq_in,
116 unsigned int freq_out)
117{
118 int ret = -EINVAL;
119
120 if (component->driver->set_pll)
121 ret = component->driver->set_pll(component, pll_id, source,
122 freq_in, freq_out);
123
124 return soc_component_ret(component, ret);
125}
126EXPORT_SYMBOL_GPL(snd_soc_component_set_pll);
127
128void snd_soc_component_seq_notifier(struct snd_soc_component *component,
129 enum snd_soc_dapm_type type, int subseq)
130{
131 if (component->driver->seq_notifier)
132 component->driver->seq_notifier(component, type, subseq);
133}
134
135int snd_soc_component_stream_event(struct snd_soc_component *component,
136 int event)
137{
138 int ret = 0;
139
140 if (component->driver->stream_event)
141 ret = component->driver->stream_event(component, event);
142
143 return soc_component_ret(component, ret);
144}
145
146int snd_soc_component_set_bias_level(struct snd_soc_component *component,
147 enum snd_soc_bias_level level)
148{
149 int ret = 0;
150
151 if (component->driver->set_bias_level)
152 ret = component->driver->set_bias_level(component, level);
153
154 return soc_component_ret(component, ret);
155}
156
157int snd_soc_component_enable_pin(struct snd_soc_component *component,
158 const char *pin)
159{
160 struct snd_soc_dapm_context *dapm =
161 snd_soc_component_get_dapm(component);
162 return snd_soc_dapm_enable_pin(dapm, pin);
163}
164EXPORT_SYMBOL_GPL(snd_soc_component_enable_pin);
165
166int snd_soc_component_enable_pin_unlocked(struct snd_soc_component *component,
167 const char *pin)
168{
169 struct snd_soc_dapm_context *dapm =
170 snd_soc_component_get_dapm(component);
171 return snd_soc_dapm_enable_pin_unlocked(dapm, pin);
172}
173EXPORT_SYMBOL_GPL(snd_soc_component_enable_pin_unlocked);
174
175int snd_soc_component_disable_pin(struct snd_soc_component *component,
176 const char *pin)
177{
178 struct snd_soc_dapm_context *dapm =
179 snd_soc_component_get_dapm(component);
180 return snd_soc_dapm_disable_pin(dapm, pin);
181}
182EXPORT_SYMBOL_GPL(snd_soc_component_disable_pin);
183
184int snd_soc_component_disable_pin_unlocked(struct snd_soc_component *component,
185 const char *pin)
186{
187 struct snd_soc_dapm_context *dapm =
188 snd_soc_component_get_dapm(component);
189 return snd_soc_dapm_disable_pin_unlocked(dapm, pin);
190}
191EXPORT_SYMBOL_GPL(snd_soc_component_disable_pin_unlocked);
192
193int snd_soc_component_nc_pin(struct snd_soc_component *component,
194 const char *pin)
195{
196 struct snd_soc_dapm_context *dapm =
197 snd_soc_component_get_dapm(component);
198 return snd_soc_dapm_nc_pin(dapm, pin);
199}
200EXPORT_SYMBOL_GPL(snd_soc_component_nc_pin);
201
202int snd_soc_component_nc_pin_unlocked(struct snd_soc_component *component,
203 const char *pin)
204{
205 struct snd_soc_dapm_context *dapm =
206 snd_soc_component_get_dapm(component);
207 return snd_soc_dapm_nc_pin_unlocked(dapm, pin);
208}
209EXPORT_SYMBOL_GPL(snd_soc_component_nc_pin_unlocked);
210
211int snd_soc_component_get_pin_status(struct snd_soc_component *component,
212 const char *pin)
213{
214 struct snd_soc_dapm_context *dapm =
215 snd_soc_component_get_dapm(component);
216 return snd_soc_dapm_get_pin_status(dapm, pin);
217}
218EXPORT_SYMBOL_GPL(snd_soc_component_get_pin_status);
219
220int snd_soc_component_force_enable_pin(struct snd_soc_component *component,
221 const char *pin)
222{
223 struct snd_soc_dapm_context *dapm =
224 snd_soc_component_get_dapm(component);
225 return snd_soc_dapm_force_enable_pin(dapm, pin);
226}
227EXPORT_SYMBOL_GPL(snd_soc_component_force_enable_pin);
228
229int snd_soc_component_force_enable_pin_unlocked(
230 struct snd_soc_component *component,
231 const char *pin)
232{
233 struct snd_soc_dapm_context *dapm =
234 snd_soc_component_get_dapm(component);
235 return snd_soc_dapm_force_enable_pin_unlocked(dapm, pin);
236}
237EXPORT_SYMBOL_GPL(snd_soc_component_force_enable_pin_unlocked);
238
239int snd_soc_component_notify_control(struct snd_soc_component *component,
240 const char * const ctl)
241{
242 char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
243 struct snd_kcontrol *kctl;
244
245 /* When updating, change also snd_soc_dapm_widget_name_cmp() */
246 if (component->name_prefix)
247 snprintf(name, ARRAY_SIZE(name), "%s %s", component->name_prefix, ctl);
248 else
249 snprintf(name, ARRAY_SIZE(name), "%s", ctl);
250
251 kctl = snd_soc_card_get_kcontrol(component->card, name);
252 if (!kctl)
253 return soc_component_ret(component, -EINVAL);
254
255 snd_ctl_notify(component->card->snd_card,
256 SNDRV_CTL_EVENT_MASK_VALUE, &kctl->id);
257
258 return 0;
259}
260EXPORT_SYMBOL_GPL(snd_soc_component_notify_control);
261
262/**
263 * snd_soc_component_set_jack - configure component jack.
264 * @component: COMPONENTs
265 * @jack: structure to use for the jack
266 * @data: can be used if codec driver need extra data for configuring jack
267 *
268 * Configures and enables jack detection function.
269 */
270int snd_soc_component_set_jack(struct snd_soc_component *component,
271 struct snd_soc_jack *jack, void *data)
272{
273 int ret = -ENOTSUPP;
274
275 if (component->driver->set_jack)
276 ret = component->driver->set_jack(component, jack, data);
277
278 return soc_component_ret(component, ret);
279}
280EXPORT_SYMBOL_GPL(snd_soc_component_set_jack);
281
282/**
283 * snd_soc_component_get_jack_type
284 * @component: COMPONENTs
285 *
286 * Returns the jack type of the component
287 * This can either be the supported type or one read from
288 * devicetree with the property: jack-type.
289 */
290int snd_soc_component_get_jack_type(
291 struct snd_soc_component *component)
292{
293 int ret = -ENOTSUPP;
294
295 if (component->driver->get_jack_type)
296 ret = component->driver->get_jack_type(component);
297
298 return soc_component_ret(component, ret);
299}
300EXPORT_SYMBOL_GPL(snd_soc_component_get_jack_type);
301
302int snd_soc_component_module_get(struct snd_soc_component *component,
303 void *mark, int upon_open)
304{
305 int ret = 0;
306
307 if (component->driver->module_get_upon_open == !!upon_open &&
308 !try_module_get(component->dev->driver->owner))
309 ret = -ENODEV;
310
311 /* mark module if succeeded */
312 if (ret == 0)
313 soc_component_mark_push(component, mark, module);
314
315 return soc_component_ret(component, ret);
316}
317
318void snd_soc_component_module_put(struct snd_soc_component *component,
319 void *mark, int upon_open, int rollback)
320{
321 if (rollback && !soc_component_mark_match(component, mark, module))
322 return;
323
324 if (component->driver->module_get_upon_open == !!upon_open)
325 module_put(component->dev->driver->owner);
326
327 /* remove the mark from module */
328 soc_component_mark_pop(component, mark, module);
329}
330
331int snd_soc_component_open(struct snd_soc_component *component,
332 struct snd_pcm_substream *substream)
333{
334 int ret = 0;
335
336 if (component->driver->open)
337 ret = component->driver->open(component, substream);
338
339 /* mark substream if succeeded */
340 if (ret == 0)
341 soc_component_mark_push(component, substream, open);
342
343 return soc_component_ret(component, ret);
344}
345
346int snd_soc_component_close(struct snd_soc_component *component,
347 struct snd_pcm_substream *substream,
348 int rollback)
349{
350 int ret = 0;
351
352 if (rollback && !soc_component_mark_match(component, substream, open))
353 return 0;
354
355 if (component->driver->close)
356 ret = component->driver->close(component, substream);
357
358 /* remove marked substream */
359 soc_component_mark_pop(component, substream, open);
360
361 return soc_component_ret(component, ret);
362}
363
364void snd_soc_component_suspend(struct snd_soc_component *component)
365{
366 if (component->driver->suspend)
367 component->driver->suspend(component);
368 component->suspended = 1;
369}
370
371void snd_soc_component_resume(struct snd_soc_component *component)
372{
373 if (component->driver->resume)
374 component->driver->resume(component);
375 component->suspended = 0;
376}
377
378int snd_soc_component_is_suspended(struct snd_soc_component *component)
379{
380 return component->suspended;
381}
382
383int snd_soc_component_probe(struct snd_soc_component *component)
384{
385 int ret = 0;
386
387 if (component->driver->probe)
388 ret = component->driver->probe(component);
389
390 return soc_component_ret(component, ret);
391}
392
393void snd_soc_component_remove(struct snd_soc_component *component)
394{
395 if (component->driver->remove)
396 component->driver->remove(component);
397}
398
399int snd_soc_component_of_xlate_dai_id(struct snd_soc_component *component,
400 struct device_node *ep)
401{
402 int ret = -ENOTSUPP;
403
404 if (component->driver->of_xlate_dai_id)
405 ret = component->driver->of_xlate_dai_id(component, ep);
406
407 return soc_component_ret(component, ret);
408}
409
410int snd_soc_component_of_xlate_dai_name(struct snd_soc_component *component,
411 const struct of_phandle_args *args,
412 const char **dai_name)
413{
414 if (component->driver->of_xlate_dai_name)
415 return component->driver->of_xlate_dai_name(component,
416 args, dai_name);
417 /*
418 * Don't use soc_component_ret here because we may not want to report
419 * the error just yet. If a device has more than one component, the
420 * first may not match and we don't want spam the log with this.
421 */
422 return -ENOTSUPP;
423}
424
425void snd_soc_component_setup_regmap(struct snd_soc_component *component)
426{
427 int val_bytes = regmap_get_val_bytes(component->regmap);
428
429 /* Errors are legitimate for non-integer byte multiples */
430 if (val_bytes > 0)
431 component->val_bytes = val_bytes;
432}
433
434#ifdef CONFIG_REGMAP
435
436/**
437 * snd_soc_component_init_regmap() - Initialize regmap instance for the
438 * component
439 * @component: The component for which to initialize the regmap instance
440 * @regmap: The regmap instance that should be used by the component
441 *
442 * This function allows deferred assignment of the regmap instance that is
443 * associated with the component. Only use this if the regmap instance is not
444 * yet ready when the component is registered. The function must also be called
445 * before the first IO attempt of the component.
446 */
447void snd_soc_component_init_regmap(struct snd_soc_component *component,
448 struct regmap *regmap)
449{
450 component->regmap = regmap;
451 snd_soc_component_setup_regmap(component);
452}
453EXPORT_SYMBOL_GPL(snd_soc_component_init_regmap);
454
455/**
456 * snd_soc_component_exit_regmap() - De-initialize regmap instance for the
457 * component
458 * @component: The component for which to de-initialize the regmap instance
459 *
460 * Calls regmap_exit() on the regmap instance associated to the component and
461 * removes the regmap instance from the component.
462 *
463 * This function should only be used if snd_soc_component_init_regmap() was used
464 * to initialize the regmap instance.
465 */
466void snd_soc_component_exit_regmap(struct snd_soc_component *component)
467{
468 regmap_exit(component->regmap);
469 component->regmap = NULL;
470}
471EXPORT_SYMBOL_GPL(snd_soc_component_exit_regmap);
472
473#endif
474
475int snd_soc_component_compr_open(struct snd_soc_component *component,
476 struct snd_compr_stream *cstream)
477{
478 int ret = 0;
479
480 if (component->driver->compress_ops &&
481 component->driver->compress_ops->open)
482 ret = component->driver->compress_ops->open(component, cstream);
483
484 /* mark substream if succeeded */
485 if (ret == 0)
486 soc_component_mark_push(component, cstream, compr_open);
487
488 return soc_component_ret(component, ret);
489}
490EXPORT_SYMBOL_GPL(snd_soc_component_compr_open);
491
492void snd_soc_component_compr_free(struct snd_soc_component *component,
493 struct snd_compr_stream *cstream,
494 int rollback)
495{
496 if (rollback && !soc_component_mark_match(component, cstream, compr_open))
497 return;
498
499 if (component->driver->compress_ops &&
500 component->driver->compress_ops->free)
501 component->driver->compress_ops->free(component, cstream);
502
503 /* remove marked substream */
504 soc_component_mark_pop(component, cstream, compr_open);
505}
506EXPORT_SYMBOL_GPL(snd_soc_component_compr_free);
507
508int snd_soc_component_compr_trigger(struct snd_compr_stream *cstream, int cmd)
509{
510 struct snd_soc_pcm_runtime *rtd = cstream->private_data;
511 struct snd_soc_component *component;
512 int i, ret;
513
514 for_each_rtd_components(rtd, i, component) {
515 if (component->driver->compress_ops &&
516 component->driver->compress_ops->trigger) {
517 ret = component->driver->compress_ops->trigger(
518 component, cstream, cmd);
519 if (ret < 0)
520 return soc_component_ret(component, ret);
521 }
522 }
523
524 return 0;
525}
526EXPORT_SYMBOL_GPL(snd_soc_component_compr_trigger);
527
528int snd_soc_component_compr_set_params(struct snd_compr_stream *cstream,
529 struct snd_compr_params *params)
530{
531 struct snd_soc_pcm_runtime *rtd = cstream->private_data;
532 struct snd_soc_component *component;
533 int i, ret;
534
535 for_each_rtd_components(rtd, i, component) {
536 if (component->driver->compress_ops &&
537 component->driver->compress_ops->set_params) {
538 ret = component->driver->compress_ops->set_params(
539 component, cstream, params);
540 if (ret < 0)
541 return soc_component_ret(component, ret);
542 }
543 }
544
545 return 0;
546}
547EXPORT_SYMBOL_GPL(snd_soc_component_compr_set_params);
548
549int snd_soc_component_compr_get_params(struct snd_compr_stream *cstream,
550 struct snd_codec *params)
551{
552 struct snd_soc_pcm_runtime *rtd = cstream->private_data;
553 struct snd_soc_component *component;
554 int i, ret;
555
556 for_each_rtd_components(rtd, i, component) {
557 if (component->driver->compress_ops &&
558 component->driver->compress_ops->get_params) {
559 ret = component->driver->compress_ops->get_params(
560 component, cstream, params);
561 return soc_component_ret(component, ret);
562 }
563 }
564
565 return 0;
566}
567EXPORT_SYMBOL_GPL(snd_soc_component_compr_get_params);
568
569int snd_soc_component_compr_get_caps(struct snd_compr_stream *cstream,
570 struct snd_compr_caps *caps)
571{
572 struct snd_soc_pcm_runtime *rtd = cstream->private_data;
573 struct snd_soc_component *component;
574 int i, ret = 0;
575
576 snd_soc_dpcm_mutex_lock(rtd);
577
578 for_each_rtd_components(rtd, i, component) {
579 if (component->driver->compress_ops &&
580 component->driver->compress_ops->get_caps) {
581 ret = component->driver->compress_ops->get_caps(
582 component, cstream, caps);
583 break;
584 }
585 }
586
587 snd_soc_dpcm_mutex_unlock(rtd);
588
589 return soc_component_ret(component, ret);
590}
591EXPORT_SYMBOL_GPL(snd_soc_component_compr_get_caps);
592
593int snd_soc_component_compr_get_codec_caps(struct snd_compr_stream *cstream,
594 struct snd_compr_codec_caps *codec)
595{
596 struct snd_soc_pcm_runtime *rtd = cstream->private_data;
597 struct snd_soc_component *component;
598 int i, ret = 0;
599
600 snd_soc_dpcm_mutex_lock(rtd);
601
602 for_each_rtd_components(rtd, i, component) {
603 if (component->driver->compress_ops &&
604 component->driver->compress_ops->get_codec_caps) {
605 ret = component->driver->compress_ops->get_codec_caps(
606 component, cstream, codec);
607 break;
608 }
609 }
610
611 snd_soc_dpcm_mutex_unlock(rtd);
612
613 return soc_component_ret(component, ret);
614}
615EXPORT_SYMBOL_GPL(snd_soc_component_compr_get_codec_caps);
616
617int snd_soc_component_compr_ack(struct snd_compr_stream *cstream, size_t bytes)
618{
619 struct snd_soc_pcm_runtime *rtd = cstream->private_data;
620 struct snd_soc_component *component;
621 int i, ret;
622
623 for_each_rtd_components(rtd, i, component) {
624 if (component->driver->compress_ops &&
625 component->driver->compress_ops->ack) {
626 ret = component->driver->compress_ops->ack(
627 component, cstream, bytes);
628 if (ret < 0)
629 return soc_component_ret(component, ret);
630 }
631 }
632
633 return 0;
634}
635EXPORT_SYMBOL_GPL(snd_soc_component_compr_ack);
636
637int snd_soc_component_compr_pointer(struct snd_compr_stream *cstream,
638 struct snd_compr_tstamp *tstamp)
639{
640 struct snd_soc_pcm_runtime *rtd = cstream->private_data;
641 struct snd_soc_component *component;
642 int i, ret;
643
644 for_each_rtd_components(rtd, i, component) {
645 if (component->driver->compress_ops &&
646 component->driver->compress_ops->pointer) {
647 ret = component->driver->compress_ops->pointer(
648 component, cstream, tstamp);
649 return soc_component_ret(component, ret);
650 }
651 }
652
653 return 0;
654}
655EXPORT_SYMBOL_GPL(snd_soc_component_compr_pointer);
656
657int snd_soc_component_compr_copy(struct snd_compr_stream *cstream,
658 char __user *buf, size_t count)
659{
660 struct snd_soc_pcm_runtime *rtd = cstream->private_data;
661 struct snd_soc_component *component;
662 int i, ret = 0;
663
664 snd_soc_dpcm_mutex_lock(rtd);
665
666 for_each_rtd_components(rtd, i, component) {
667 if (component->driver->compress_ops &&
668 component->driver->compress_ops->copy) {
669 ret = component->driver->compress_ops->copy(
670 component, cstream, buf, count);
671 break;
672 }
673 }
674
675 snd_soc_dpcm_mutex_unlock(rtd);
676
677 return soc_component_ret(component, ret);
678}
679EXPORT_SYMBOL_GPL(snd_soc_component_compr_copy);
680
681int snd_soc_component_compr_set_metadata(struct snd_compr_stream *cstream,
682 struct snd_compr_metadata *metadata)
683{
684 struct snd_soc_pcm_runtime *rtd = cstream->private_data;
685 struct snd_soc_component *component;
686 int i, ret;
687
688 for_each_rtd_components(rtd, i, component) {
689 if (component->driver->compress_ops &&
690 component->driver->compress_ops->set_metadata) {
691 ret = component->driver->compress_ops->set_metadata(
692 component, cstream, metadata);
693 if (ret < 0)
694 return soc_component_ret(component, ret);
695 }
696 }
697
698 return 0;
699}
700EXPORT_SYMBOL_GPL(snd_soc_component_compr_set_metadata);
701
702int snd_soc_component_compr_get_metadata(struct snd_compr_stream *cstream,
703 struct snd_compr_metadata *metadata)
704{
705 struct snd_soc_pcm_runtime *rtd = cstream->private_data;
706 struct snd_soc_component *component;
707 int i, ret;
708
709 for_each_rtd_components(rtd, i, component) {
710 if (component->driver->compress_ops &&
711 component->driver->compress_ops->get_metadata) {
712 ret = component->driver->compress_ops->get_metadata(
713 component, cstream, metadata);
714 return soc_component_ret(component, ret);
715 }
716 }
717
718 return 0;
719}
720EXPORT_SYMBOL_GPL(snd_soc_component_compr_get_metadata);
721
722static unsigned int soc_component_read_no_lock(
723 struct snd_soc_component *component,
724 unsigned int reg)
725{
726 int ret;
727 unsigned int val = 0;
728
729 if (component->regmap)
730 ret = regmap_read(component->regmap, reg, &val);
731 else if (component->driver->read) {
732 ret = 0;
733 val = component->driver->read(component, reg);
734 }
735 else
736 ret = -EIO;
737
738 if (ret < 0)
739 return soc_component_ret_reg_rw(component, ret, reg);
740
741 return val;
742}
743
744/**
745 * snd_soc_component_read() - Read register value
746 * @component: Component to read from
747 * @reg: Register to read
748 *
749 * Return: read value
750 */
751unsigned int snd_soc_component_read(struct snd_soc_component *component,
752 unsigned int reg)
753{
754 unsigned int val;
755
756 mutex_lock(&component->io_mutex);
757 val = soc_component_read_no_lock(component, reg);
758 mutex_unlock(&component->io_mutex);
759
760 return val;
761}
762EXPORT_SYMBOL_GPL(snd_soc_component_read);
763
764static int soc_component_write_no_lock(
765 struct snd_soc_component *component,
766 unsigned int reg, unsigned int val)
767{
768 int ret = -EIO;
769
770 if (component->regmap)
771 ret = regmap_write(component->regmap, reg, val);
772 else if (component->driver->write)
773 ret = component->driver->write(component, reg, val);
774
775 return soc_component_ret_reg_rw(component, ret, reg);
776}
777
778/**
779 * snd_soc_component_write() - Write register value
780 * @component: Component to write to
781 * @reg: Register to write
782 * @val: Value to write to the register
783 *
784 * Return: 0 on success, a negative error code otherwise.
785 */
786int snd_soc_component_write(struct snd_soc_component *component,
787 unsigned int reg, unsigned int val)
788{
789 int ret;
790
791 mutex_lock(&component->io_mutex);
792 ret = soc_component_write_no_lock(component, reg, val);
793 mutex_unlock(&component->io_mutex);
794
795 return ret;
796}
797EXPORT_SYMBOL_GPL(snd_soc_component_write);
798
799static int snd_soc_component_update_bits_legacy(
800 struct snd_soc_component *component, unsigned int reg,
801 unsigned int mask, unsigned int val, bool *change)
802{
803 unsigned int old, new;
804 int ret = 0;
805
806 mutex_lock(&component->io_mutex);
807
808 old = soc_component_read_no_lock(component, reg);
809
810 new = (old & ~mask) | (val & mask);
811 *change = old != new;
812 if (*change)
813 ret = soc_component_write_no_lock(component, reg, new);
814
815 mutex_unlock(&component->io_mutex);
816
817 return soc_component_ret_reg_rw(component, ret, reg);
818}
819
820/**
821 * snd_soc_component_update_bits() - Perform read/modify/write cycle
822 * @component: Component to update
823 * @reg: Register to update
824 * @mask: Mask that specifies which bits to update
825 * @val: New value for the bits specified by mask
826 *
827 * Return: 1 if the operation was successful and the value of the register
828 * changed, 0 if the operation was successful, but the value did not change.
829 * Returns a negative error code otherwise.
830 */
831int snd_soc_component_update_bits(struct snd_soc_component *component,
832 unsigned int reg, unsigned int mask, unsigned int val)
833{
834 bool change;
835 int ret;
836
837 if (component->regmap)
838 ret = regmap_update_bits_check(component->regmap, reg, mask,
839 val, &change);
840 else
841 ret = snd_soc_component_update_bits_legacy(component, reg,
842 mask, val, &change);
843
844 if (ret < 0)
845 return soc_component_ret_reg_rw(component, ret, reg);
846 return change;
847}
848EXPORT_SYMBOL_GPL(snd_soc_component_update_bits);
849
850/**
851 * snd_soc_component_update_bits_async() - Perform asynchronous
852 * read/modify/write cycle
853 * @component: Component to update
854 * @reg: Register to update
855 * @mask: Mask that specifies which bits to update
856 * @val: New value for the bits specified by mask
857 *
858 * This function is similar to snd_soc_component_update_bits(), but the update
859 * operation is scheduled asynchronously. This means it may not be completed
860 * when the function returns. To make sure that all scheduled updates have been
861 * completed snd_soc_component_async_complete() must be called.
862 *
863 * Return: 1 if the operation was successful and the value of the register
864 * changed, 0 if the operation was successful, but the value did not change.
865 * Returns a negative error code otherwise.
866 */
867int snd_soc_component_update_bits_async(struct snd_soc_component *component,
868 unsigned int reg, unsigned int mask, unsigned int val)
869{
870 bool change;
871 int ret;
872
873 if (component->regmap)
874 ret = regmap_update_bits_check_async(component->regmap, reg,
875 mask, val, &change);
876 else
877 ret = snd_soc_component_update_bits_legacy(component, reg,
878 mask, val, &change);
879
880 if (ret < 0)
881 return soc_component_ret_reg_rw(component, ret, reg);
882 return change;
883}
884EXPORT_SYMBOL_GPL(snd_soc_component_update_bits_async);
885
886/**
887 * snd_soc_component_read_field() - Read register field value
888 * @component: Component to read from
889 * @reg: Register to read
890 * @mask: mask of the register field
891 *
892 * Return: read value of register field.
893 */
894unsigned int snd_soc_component_read_field(struct snd_soc_component *component,
895 unsigned int reg, unsigned int mask)
896{
897 unsigned int val;
898
899 val = snd_soc_component_read(component, reg);
900
901 val = (val & mask) >> soc_component_field_shift(component, mask);
902
903 return val;
904}
905EXPORT_SYMBOL_GPL(snd_soc_component_read_field);
906
907/**
908 * snd_soc_component_write_field() - write to register field
909 * @component: Component to write to
910 * @reg: Register to write
911 * @mask: mask of the register field to update
912 * @val: value of the field to write
913 *
914 * Return: 1 for change, otherwise 0.
915 */
916int snd_soc_component_write_field(struct snd_soc_component *component,
917 unsigned int reg, unsigned int mask,
918 unsigned int val)
919{
920
921 val = (val << soc_component_field_shift(component, mask)) & mask;
922
923 return snd_soc_component_update_bits(component, reg, mask, val);
924}
925EXPORT_SYMBOL_GPL(snd_soc_component_write_field);
926
927/**
928 * snd_soc_component_async_complete() - Ensure asynchronous I/O has completed
929 * @component: Component for which to wait
930 *
931 * This function blocks until all asynchronous I/O which has previously been
932 * scheduled using snd_soc_component_update_bits_async() has completed.
933 */
934void snd_soc_component_async_complete(struct snd_soc_component *component)
935{
936 if (component->regmap)
937 regmap_async_complete(component->regmap);
938}
939EXPORT_SYMBOL_GPL(snd_soc_component_async_complete);
940
941/**
942 * snd_soc_component_test_bits - Test register for change
943 * @component: component
944 * @reg: Register to test
945 * @mask: Mask that specifies which bits to test
946 * @value: Value to test against
947 *
948 * Tests a register with a new value and checks if the new value is
949 * different from the old value.
950 *
951 * Return: 1 for change, otherwise 0.
952 */
953int snd_soc_component_test_bits(struct snd_soc_component *component,
954 unsigned int reg, unsigned int mask, unsigned int value)
955{
956 unsigned int old, new;
957
958 old = snd_soc_component_read(component, reg);
959 new = (old & ~mask) | value;
960 return old != new;
961}
962EXPORT_SYMBOL_GPL(snd_soc_component_test_bits);
963
964int snd_soc_pcm_component_pointer(struct snd_pcm_substream *substream)
965{
966 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
967 struct snd_soc_component *component;
968 int i;
969
970 /* FIXME: use 1st pointer */
971 for_each_rtd_components(rtd, i, component)
972 if (component->driver->pointer)
973 return component->driver->pointer(component, substream);
974
975 return 0;
976}
977
978static bool snd_soc_component_is_codec_on_rtd(struct snd_soc_pcm_runtime *rtd,
979 struct snd_soc_component *component)
980{
981 struct snd_soc_dai *dai;
982 int i;
983
984 for_each_rtd_codec_dais(rtd, i, dai) {
985 if (dai->component == component)
986 return true;
987 }
988
989 return false;
990}
991
992void snd_soc_pcm_component_delay(struct snd_pcm_substream *substream,
993 snd_pcm_sframes_t *cpu_delay,
994 snd_pcm_sframes_t *codec_delay)
995{
996 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
997 struct snd_soc_component *component;
998 snd_pcm_sframes_t delay;
999 int i;
1000
1001 /*
1002 * We're looking for the delay through the full audio path so it needs to
1003 * be the maximum of the Components doing transmit and the maximum of the
1004 * Components doing receive (ie, all CPUs and all CODECs) rather than
1005 * just the maximum of all Components.
1006 */
1007 for_each_rtd_components(rtd, i, component) {
1008 if (!component->driver->delay)
1009 continue;
1010
1011 delay = component->driver->delay(component, substream);
1012
1013 if (snd_soc_component_is_codec_on_rtd(rtd, component))
1014 *codec_delay = max(*codec_delay, delay);
1015 else
1016 *cpu_delay = max(*cpu_delay, delay);
1017 }
1018}
1019
1020int snd_soc_pcm_component_ioctl(struct snd_pcm_substream *substream,
1021 unsigned int cmd, void *arg)
1022{
1023 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
1024 struct snd_soc_component *component;
1025 int i;
1026
1027 /* FIXME: use 1st ioctl */
1028 for_each_rtd_components(rtd, i, component)
1029 if (component->driver->ioctl)
1030 return soc_component_ret(
1031 component,
1032 component->driver->ioctl(component,
1033 substream, cmd, arg));
1034
1035 return snd_pcm_lib_ioctl(substream, cmd, arg);
1036}
1037
1038int snd_soc_pcm_component_sync_stop(struct snd_pcm_substream *substream)
1039{
1040 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
1041 struct snd_soc_component *component;
1042 int i, ret;
1043
1044 for_each_rtd_components(rtd, i, component) {
1045 if (component->driver->sync_stop) {
1046 ret = component->driver->sync_stop(component,
1047 substream);
1048 if (ret < 0)
1049 return soc_component_ret(component, ret);
1050 }
1051 }
1052
1053 return 0;
1054}
1055
1056int snd_soc_pcm_component_copy(struct snd_pcm_substream *substream,
1057 int channel, unsigned long pos,
1058 struct iov_iter *iter, unsigned long bytes)
1059{
1060 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
1061 struct snd_soc_component *component;
1062 int i;
1063
1064 /* FIXME. it returns 1st copy now */
1065 for_each_rtd_components(rtd, i, component)
1066 if (component->driver->copy)
1067 return soc_component_ret(component,
1068 component->driver->copy(component, substream,
1069 channel, pos, iter, bytes));
1070
1071 return -EINVAL;
1072}
1073
1074struct page *snd_soc_pcm_component_page(struct snd_pcm_substream *substream,
1075 unsigned long offset)
1076{
1077 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
1078 struct snd_soc_component *component;
1079 struct page *page;
1080 int i;
1081
1082 /* FIXME. it returns 1st page now */
1083 for_each_rtd_components(rtd, i, component) {
1084 if (component->driver->page) {
1085 page = component->driver->page(component,
1086 substream, offset);
1087 if (page)
1088 return page;
1089 }
1090 }
1091
1092 return NULL;
1093}
1094
1095int snd_soc_pcm_component_mmap(struct snd_pcm_substream *substream,
1096 struct vm_area_struct *vma)
1097{
1098 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
1099 struct snd_soc_component *component;
1100 int i;
1101
1102 /* FIXME. it returns 1st mmap now */
1103 for_each_rtd_components(rtd, i, component)
1104 if (component->driver->mmap)
1105 return soc_component_ret(
1106 component,
1107 component->driver->mmap(component,
1108 substream, vma));
1109
1110 return -EINVAL;
1111}
1112
1113int snd_soc_pcm_component_new(struct snd_soc_pcm_runtime *rtd)
1114{
1115 struct snd_soc_component *component;
1116 int ret;
1117 int i;
1118
1119 for_each_rtd_components(rtd, i, component) {
1120 if (component->driver->pcm_construct) {
1121 ret = component->driver->pcm_construct(component, rtd);
1122 if (ret < 0)
1123 return soc_component_ret(component, ret);
1124 }
1125 }
1126
1127 return 0;
1128}
1129
1130void snd_soc_pcm_component_free(struct snd_soc_pcm_runtime *rtd)
1131{
1132 struct snd_soc_component *component;
1133 int i;
1134
1135 if (!rtd->pcm)
1136 return;
1137
1138 for_each_rtd_components(rtd, i, component)
1139 if (component->driver->pcm_destruct)
1140 component->driver->pcm_destruct(component, rtd->pcm);
1141}
1142
1143int snd_soc_pcm_component_prepare(struct snd_pcm_substream *substream)
1144{
1145 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
1146 struct snd_soc_component *component;
1147 int i, ret;
1148
1149 for_each_rtd_components(rtd, i, component) {
1150 if (component->driver->prepare) {
1151 ret = component->driver->prepare(component, substream);
1152 if (ret < 0)
1153 return soc_component_ret(component, ret);
1154 }
1155 }
1156
1157 return 0;
1158}
1159
1160int snd_soc_pcm_component_hw_params(struct snd_pcm_substream *substream,
1161 struct snd_pcm_hw_params *params)
1162{
1163 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
1164 struct snd_soc_component *component;
1165 int i, ret;
1166
1167 for_each_rtd_components(rtd, i, component) {
1168 if (component->driver->hw_params) {
1169 ret = component->driver->hw_params(component,
1170 substream, params);
1171 if (ret < 0)
1172 return soc_component_ret(component, ret);
1173 }
1174 /* mark substream if succeeded */
1175 soc_component_mark_push(component, substream, hw_params);
1176 }
1177
1178 return 0;
1179}
1180
1181void snd_soc_pcm_component_hw_free(struct snd_pcm_substream *substream,
1182 int rollback)
1183{
1184 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
1185 struct snd_soc_component *component;
1186 int i, ret;
1187
1188 for_each_rtd_components(rtd, i, component) {
1189 if (rollback && !soc_component_mark_match(component, substream, hw_params))
1190 continue;
1191
1192 if (component->driver->hw_free) {
1193 ret = component->driver->hw_free(component, substream);
1194 if (ret < 0)
1195 soc_component_ret(component, ret);
1196 }
1197
1198 /* remove marked substream */
1199 soc_component_mark_pop(component, substream, hw_params);
1200 }
1201}
1202
1203static int soc_component_trigger(struct snd_soc_component *component,
1204 struct snd_pcm_substream *substream,
1205 int cmd)
1206{
1207 int ret = 0;
1208
1209 if (component->driver->trigger)
1210 ret = component->driver->trigger(component, substream, cmd);
1211
1212 return soc_component_ret(component, ret);
1213}
1214
1215int snd_soc_pcm_component_trigger(struct snd_pcm_substream *substream,
1216 int cmd, int rollback)
1217{
1218 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
1219 struct snd_soc_component *component;
1220 int i, r, ret = 0;
1221
1222 switch (cmd) {
1223 case SNDRV_PCM_TRIGGER_START:
1224 case SNDRV_PCM_TRIGGER_RESUME:
1225 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
1226 for_each_rtd_components(rtd, i, component) {
1227 ret = soc_component_trigger(component, substream, cmd);
1228 if (ret < 0)
1229 break;
1230 soc_component_mark_push(component, substream, trigger);
1231 }
1232 break;
1233 case SNDRV_PCM_TRIGGER_STOP:
1234 case SNDRV_PCM_TRIGGER_SUSPEND:
1235 case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
1236 for_each_rtd_components(rtd, i, component) {
1237 if (rollback && !soc_component_mark_match(component, substream, trigger))
1238 continue;
1239
1240 r = soc_component_trigger(component, substream, cmd);
1241 if (r < 0)
1242 ret = r; /* use last ret */
1243 soc_component_mark_pop(component, substream, trigger);
1244 }
1245 }
1246
1247 return ret;
1248}
1249
1250int snd_soc_pcm_component_pm_runtime_get(struct snd_soc_pcm_runtime *rtd,
1251 void *stream)
1252{
1253 struct snd_soc_component *component;
1254 int i;
1255
1256 for_each_rtd_components(rtd, i, component) {
1257 int ret = pm_runtime_get_sync(component->dev);
1258 if (ret < 0 && ret != -EACCES) {
1259 pm_runtime_put_noidle(component->dev);
1260 return soc_component_ret(component, ret);
1261 }
1262 /* mark stream if succeeded */
1263 soc_component_mark_push(component, stream, pm);
1264 }
1265
1266 return 0;
1267}
1268
1269void snd_soc_pcm_component_pm_runtime_put(struct snd_soc_pcm_runtime *rtd,
1270 void *stream, int rollback)
1271{
1272 struct snd_soc_component *component;
1273 int i;
1274
1275 for_each_rtd_components(rtd, i, component) {
1276 if (rollback && !soc_component_mark_match(component, stream, pm))
1277 continue;
1278
1279 pm_runtime_mark_last_busy(component->dev);
1280 pm_runtime_put_autosuspend(component->dev);
1281
1282 /* remove marked stream */
1283 soc_component_mark_pop(component, stream, pm);
1284 }
1285}
1286
1287int snd_soc_pcm_component_ack(struct snd_pcm_substream *substream)
1288{
1289 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
1290 struct snd_soc_component *component;
1291 int i;
1292
1293 /* FIXME: use 1st pointer */
1294 for_each_rtd_components(rtd, i, component)
1295 if (component->driver->ack)
1296 return component->driver->ack(component, substream);
1297
1298 return 0;
1299}