1 // SPDX-License-Identifier: GPL-2.0
5 // Copyright 2009-2011 Wolfson Microelectronics PLC.
6 // Copyright (C) 2019 Renesas Electronics Corp.
8 // Mark Brown <broonie@opensource.wolfsonmicro.com>
9 // Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
11 #include <linux/module.h>
12 #include <linux/pm_runtime.h>
13 #include <sound/soc.h>
14 #include <linux/bitops.h>
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)
18 static inline int _soc_component_ret(struct snd_soc_component *component,
19 const char *func, int ret, int reg)
21 /* Positive/Zero values are not errors */
25 /* Negative values might be errors */
32 dev_err(component->dev,
33 "ASoC: error at %s on %s: %d\n",
34 func, component->name, ret);
36 dev_err(component->dev,
37 "ASoC: error at %s on %s for register: [0x%08x] %d\n",
38 func, component->name, reg, ret);
44 static inline int soc_component_field_shift(struct snd_soc_component *component,
48 dev_err(component->dev, "ASoC: error field mask is zero for %s\n",
53 return (ffs(mask) - 1);
57 * We might want to check substream by using list.
58 * In such case, we can update these macros.
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)
64 void snd_soc_component_set_aux(struct snd_soc_component *component,
65 struct snd_soc_aux_dev *aux)
67 component->init = (aux) ? aux->init : NULL;
70 int snd_soc_component_init(struct snd_soc_component *component)
75 ret = component->init(component);
77 return soc_component_ret(component, ret);
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.
88 * Configures the CODEC master (MCLK) or system (SYSCLK) clocking.
90 int snd_soc_component_set_sysclk(struct snd_soc_component *component,
91 int clk_id, int source, unsigned int freq,
96 if (component->driver->set_sysclk)
97 ret = component->driver->set_sysclk(component, clk_id, source,
100 return soc_component_ret(component, ret);
102 EXPORT_SYMBOL_GPL(snd_soc_component_set_sysclk);
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
112 * Configures and enables PLL to generate output clock based on input clock.
114 int 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)
120 if (component->driver->set_pll)
121 ret = component->driver->set_pll(component, pll_id, source,
124 return soc_component_ret(component, ret);
126 EXPORT_SYMBOL_GPL(snd_soc_component_set_pll);
128 void snd_soc_component_seq_notifier(struct snd_soc_component *component,
129 enum snd_soc_dapm_type type, int subseq)
131 if (component->driver->seq_notifier)
132 component->driver->seq_notifier(component, type, subseq);
135 int snd_soc_component_stream_event(struct snd_soc_component *component,
140 if (component->driver->stream_event)
141 ret = component->driver->stream_event(component, event);
143 return soc_component_ret(component, ret);
146 int snd_soc_component_set_bias_level(struct snd_soc_component *component,
147 enum snd_soc_bias_level level)
151 if (component->driver->set_bias_level)
152 ret = component->driver->set_bias_level(component, level);
154 return soc_component_ret(component, ret);
157 int snd_soc_component_enable_pin(struct snd_soc_component *component,
160 struct snd_soc_dapm_context *dapm =
161 snd_soc_component_get_dapm(component);
162 return snd_soc_dapm_enable_pin(dapm, pin);
164 EXPORT_SYMBOL_GPL(snd_soc_component_enable_pin);
166 int snd_soc_component_enable_pin_unlocked(struct snd_soc_component *component,
169 struct snd_soc_dapm_context *dapm =
170 snd_soc_component_get_dapm(component);
171 return snd_soc_dapm_enable_pin_unlocked(dapm, pin);
173 EXPORT_SYMBOL_GPL(snd_soc_component_enable_pin_unlocked);
175 int snd_soc_component_disable_pin(struct snd_soc_component *component,
178 struct snd_soc_dapm_context *dapm =
179 snd_soc_component_get_dapm(component);
180 return snd_soc_dapm_disable_pin(dapm, pin);
182 EXPORT_SYMBOL_GPL(snd_soc_component_disable_pin);
184 int snd_soc_component_disable_pin_unlocked(struct snd_soc_component *component,
187 struct snd_soc_dapm_context *dapm =
188 snd_soc_component_get_dapm(component);
189 return snd_soc_dapm_disable_pin_unlocked(dapm, pin);
191 EXPORT_SYMBOL_GPL(snd_soc_component_disable_pin_unlocked);
193 int snd_soc_component_nc_pin(struct snd_soc_component *component,
196 struct snd_soc_dapm_context *dapm =
197 snd_soc_component_get_dapm(component);
198 return snd_soc_dapm_nc_pin(dapm, pin);
200 EXPORT_SYMBOL_GPL(snd_soc_component_nc_pin);
202 int snd_soc_component_nc_pin_unlocked(struct snd_soc_component *component,
205 struct snd_soc_dapm_context *dapm =
206 snd_soc_component_get_dapm(component);
207 return snd_soc_dapm_nc_pin_unlocked(dapm, pin);
209 EXPORT_SYMBOL_GPL(snd_soc_component_nc_pin_unlocked);
211 int snd_soc_component_get_pin_status(struct snd_soc_component *component,
214 struct snd_soc_dapm_context *dapm =
215 snd_soc_component_get_dapm(component);
216 return snd_soc_dapm_get_pin_status(dapm, pin);
218 EXPORT_SYMBOL_GPL(snd_soc_component_get_pin_status);
220 int snd_soc_component_force_enable_pin(struct snd_soc_component *component,
223 struct snd_soc_dapm_context *dapm =
224 snd_soc_component_get_dapm(component);
225 return snd_soc_dapm_force_enable_pin(dapm, pin);
227 EXPORT_SYMBOL_GPL(snd_soc_component_force_enable_pin);
229 int snd_soc_component_force_enable_pin_unlocked(
230 struct snd_soc_component *component,
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);
237 EXPORT_SYMBOL_GPL(snd_soc_component_force_enable_pin_unlocked);
239 int snd_soc_component_notify_control(struct snd_soc_component *component,
240 const char * const ctl)
242 char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
243 struct snd_kcontrol *kctl;
245 if (component->name_prefix)
246 snprintf(name, ARRAY_SIZE(name), "%s %s", component->name_prefix, ctl);
248 snprintf(name, ARRAY_SIZE(name), "%s", ctl);
250 kctl = snd_soc_card_get_kcontrol(component->card, name);
252 return soc_component_ret(component, -EINVAL);
254 snd_ctl_notify(component->card->snd_card,
255 SNDRV_CTL_EVENT_MASK_VALUE, &kctl->id);
259 EXPORT_SYMBOL_GPL(snd_soc_component_notify_control);
262 * snd_soc_component_set_jack - configure component jack.
263 * @component: COMPONENTs
264 * @jack: structure to use for the jack
265 * @data: can be used if codec driver need extra data for configuring jack
267 * Configures and enables jack detection function.
269 int snd_soc_component_set_jack(struct snd_soc_component *component,
270 struct snd_soc_jack *jack, void *data)
274 if (component->driver->set_jack)
275 ret = component->driver->set_jack(component, jack, data);
277 return soc_component_ret(component, ret);
279 EXPORT_SYMBOL_GPL(snd_soc_component_set_jack);
282 * snd_soc_component_get_jack_type
283 * @component: COMPONENTs
285 * Returns the jack type of the component
286 * This can either be the supported type or one read from
287 * devicetree with the property: jack-type.
289 int snd_soc_component_get_jack_type(
290 struct snd_soc_component *component)
294 if (component->driver->get_jack_type)
295 ret = component->driver->get_jack_type(component);
297 return soc_component_ret(component, ret);
299 EXPORT_SYMBOL_GPL(snd_soc_component_get_jack_type);
301 int snd_soc_component_module_get(struct snd_soc_component *component,
302 void *mark, int upon_open)
306 if (component->driver->module_get_upon_open == !!upon_open &&
307 !try_module_get(component->dev->driver->owner))
310 /* mark module if succeeded */
312 soc_component_mark_push(component, mark, module);
314 return soc_component_ret(component, ret);
317 void snd_soc_component_module_put(struct snd_soc_component *component,
318 void *mark, int upon_open, int rollback)
320 if (rollback && !soc_component_mark_match(component, mark, module))
323 if (component->driver->module_get_upon_open == !!upon_open)
324 module_put(component->dev->driver->owner);
326 /* remove the mark from module */
327 soc_component_mark_pop(component, mark, module);
330 int snd_soc_component_open(struct snd_soc_component *component,
331 struct snd_pcm_substream *substream)
335 if (component->driver->open)
336 ret = component->driver->open(component, substream);
338 /* mark substream if succeeded */
340 soc_component_mark_push(component, substream, open);
342 return soc_component_ret(component, ret);
345 int snd_soc_component_close(struct snd_soc_component *component,
346 struct snd_pcm_substream *substream,
351 if (rollback && !soc_component_mark_match(component, substream, open))
354 if (component->driver->close)
355 ret = component->driver->close(component, substream);
357 /* remove marked substream */
358 soc_component_mark_pop(component, substream, open);
360 return soc_component_ret(component, ret);
363 void snd_soc_component_suspend(struct snd_soc_component *component)
365 if (component->driver->suspend)
366 component->driver->suspend(component);
367 component->suspended = 1;
370 void snd_soc_component_resume(struct snd_soc_component *component)
372 if (component->driver->resume)
373 component->driver->resume(component);
374 component->suspended = 0;
377 int snd_soc_component_is_suspended(struct snd_soc_component *component)
379 return component->suspended;
382 int snd_soc_component_probe(struct snd_soc_component *component)
386 if (component->driver->probe)
387 ret = component->driver->probe(component);
389 return soc_component_ret(component, ret);
392 void snd_soc_component_remove(struct snd_soc_component *component)
394 if (component->driver->remove)
395 component->driver->remove(component);
398 int snd_soc_component_of_xlate_dai_id(struct snd_soc_component *component,
399 struct device_node *ep)
403 if (component->driver->of_xlate_dai_id)
404 ret = component->driver->of_xlate_dai_id(component, ep);
406 return soc_component_ret(component, ret);
409 int snd_soc_component_of_xlate_dai_name(struct snd_soc_component *component,
410 const struct of_phandle_args *args,
411 const char **dai_name)
413 if (component->driver->of_xlate_dai_name)
414 return component->driver->of_xlate_dai_name(component,
417 * Don't use soc_component_ret here because we may not want to report
418 * the error just yet. If a device has more than one component, the
419 * first may not match and we don't want spam the log with this.
424 void snd_soc_component_setup_regmap(struct snd_soc_component *component)
426 int val_bytes = regmap_get_val_bytes(component->regmap);
428 /* Errors are legitimate for non-integer byte multiples */
430 component->val_bytes = val_bytes;
436 * snd_soc_component_init_regmap() - Initialize regmap instance for the
438 * @component: The component for which to initialize the regmap instance
439 * @regmap: The regmap instance that should be used by the component
441 * This function allows deferred assignment of the regmap instance that is
442 * associated with the component. Only use this if the regmap instance is not
443 * yet ready when the component is registered. The function must also be called
444 * before the first IO attempt of the component.
446 void snd_soc_component_init_regmap(struct snd_soc_component *component,
447 struct regmap *regmap)
449 component->regmap = regmap;
450 snd_soc_component_setup_regmap(component);
452 EXPORT_SYMBOL_GPL(snd_soc_component_init_regmap);
455 * snd_soc_component_exit_regmap() - De-initialize regmap instance for the
457 * @component: The component for which to de-initialize the regmap instance
459 * Calls regmap_exit() on the regmap instance associated to the component and
460 * removes the regmap instance from the component.
462 * This function should only be used if snd_soc_component_init_regmap() was used
463 * to initialize the regmap instance.
465 void snd_soc_component_exit_regmap(struct snd_soc_component *component)
467 regmap_exit(component->regmap);
468 component->regmap = NULL;
470 EXPORT_SYMBOL_GPL(snd_soc_component_exit_regmap);
474 int snd_soc_component_compr_open(struct snd_soc_component *component,
475 struct snd_compr_stream *cstream)
479 if (component->driver->compress_ops &&
480 component->driver->compress_ops->open)
481 ret = component->driver->compress_ops->open(component, cstream);
483 /* mark substream if succeeded */
485 soc_component_mark_push(component, cstream, compr_open);
487 return soc_component_ret(component, ret);
489 EXPORT_SYMBOL_GPL(snd_soc_component_compr_open);
491 void snd_soc_component_compr_free(struct snd_soc_component *component,
492 struct snd_compr_stream *cstream,
495 if (rollback && !soc_component_mark_match(component, cstream, compr_open))
498 if (component->driver->compress_ops &&
499 component->driver->compress_ops->free)
500 component->driver->compress_ops->free(component, cstream);
502 /* remove marked substream */
503 soc_component_mark_pop(component, cstream, compr_open);
505 EXPORT_SYMBOL_GPL(snd_soc_component_compr_free);
507 int snd_soc_component_compr_trigger(struct snd_compr_stream *cstream, int cmd)
509 struct snd_soc_pcm_runtime *rtd = cstream->private_data;
510 struct snd_soc_component *component;
513 for_each_rtd_components(rtd, i, component) {
514 if (component->driver->compress_ops &&
515 component->driver->compress_ops->trigger) {
516 ret = component->driver->compress_ops->trigger(
517 component, cstream, cmd);
519 return soc_component_ret(component, ret);
525 EXPORT_SYMBOL_GPL(snd_soc_component_compr_trigger);
527 int snd_soc_component_compr_set_params(struct snd_compr_stream *cstream,
528 struct snd_compr_params *params)
530 struct snd_soc_pcm_runtime *rtd = cstream->private_data;
531 struct snd_soc_component *component;
534 for_each_rtd_components(rtd, i, component) {
535 if (component->driver->compress_ops &&
536 component->driver->compress_ops->set_params) {
537 ret = component->driver->compress_ops->set_params(
538 component, cstream, params);
540 return soc_component_ret(component, ret);
546 EXPORT_SYMBOL_GPL(snd_soc_component_compr_set_params);
548 int snd_soc_component_compr_get_params(struct snd_compr_stream *cstream,
549 struct snd_codec *params)
551 struct snd_soc_pcm_runtime *rtd = cstream->private_data;
552 struct snd_soc_component *component;
555 for_each_rtd_components(rtd, i, component) {
556 if (component->driver->compress_ops &&
557 component->driver->compress_ops->get_params) {
558 ret = component->driver->compress_ops->get_params(
559 component, cstream, params);
560 return soc_component_ret(component, ret);
566 EXPORT_SYMBOL_GPL(snd_soc_component_compr_get_params);
568 int snd_soc_component_compr_get_caps(struct snd_compr_stream *cstream,
569 struct snd_compr_caps *caps)
571 struct snd_soc_pcm_runtime *rtd = cstream->private_data;
572 struct snd_soc_component *component;
575 snd_soc_dpcm_mutex_lock(rtd);
577 for_each_rtd_components(rtd, i, component) {
578 if (component->driver->compress_ops &&
579 component->driver->compress_ops->get_caps) {
580 ret = component->driver->compress_ops->get_caps(
581 component, cstream, caps);
586 snd_soc_dpcm_mutex_unlock(rtd);
588 return soc_component_ret(component, ret);
590 EXPORT_SYMBOL_GPL(snd_soc_component_compr_get_caps);
592 int snd_soc_component_compr_get_codec_caps(struct snd_compr_stream *cstream,
593 struct snd_compr_codec_caps *codec)
595 struct snd_soc_pcm_runtime *rtd = cstream->private_data;
596 struct snd_soc_component *component;
599 snd_soc_dpcm_mutex_lock(rtd);
601 for_each_rtd_components(rtd, i, component) {
602 if (component->driver->compress_ops &&
603 component->driver->compress_ops->get_codec_caps) {
604 ret = component->driver->compress_ops->get_codec_caps(
605 component, cstream, codec);
610 snd_soc_dpcm_mutex_unlock(rtd);
612 return soc_component_ret(component, ret);
614 EXPORT_SYMBOL_GPL(snd_soc_component_compr_get_codec_caps);
616 int snd_soc_component_compr_ack(struct snd_compr_stream *cstream, size_t bytes)
618 struct snd_soc_pcm_runtime *rtd = cstream->private_data;
619 struct snd_soc_component *component;
622 for_each_rtd_components(rtd, i, component) {
623 if (component->driver->compress_ops &&
624 component->driver->compress_ops->ack) {
625 ret = component->driver->compress_ops->ack(
626 component, cstream, bytes);
628 return soc_component_ret(component, ret);
634 EXPORT_SYMBOL_GPL(snd_soc_component_compr_ack);
636 int snd_soc_component_compr_pointer(struct snd_compr_stream *cstream,
637 struct snd_compr_tstamp *tstamp)
639 struct snd_soc_pcm_runtime *rtd = cstream->private_data;
640 struct snd_soc_component *component;
643 for_each_rtd_components(rtd, i, component) {
644 if (component->driver->compress_ops &&
645 component->driver->compress_ops->pointer) {
646 ret = component->driver->compress_ops->pointer(
647 component, cstream, tstamp);
648 return soc_component_ret(component, ret);
654 EXPORT_SYMBOL_GPL(snd_soc_component_compr_pointer);
656 int snd_soc_component_compr_copy(struct snd_compr_stream *cstream,
657 char __user *buf, size_t count)
659 struct snd_soc_pcm_runtime *rtd = cstream->private_data;
660 struct snd_soc_component *component;
663 snd_soc_dpcm_mutex_lock(rtd);
665 for_each_rtd_components(rtd, i, component) {
666 if (component->driver->compress_ops &&
667 component->driver->compress_ops->copy) {
668 ret = component->driver->compress_ops->copy(
669 component, cstream, buf, count);
674 snd_soc_dpcm_mutex_unlock(rtd);
676 return soc_component_ret(component, ret);
678 EXPORT_SYMBOL_GPL(snd_soc_component_compr_copy);
680 int snd_soc_component_compr_set_metadata(struct snd_compr_stream *cstream,
681 struct snd_compr_metadata *metadata)
683 struct snd_soc_pcm_runtime *rtd = cstream->private_data;
684 struct snd_soc_component *component;
687 for_each_rtd_components(rtd, i, component) {
688 if (component->driver->compress_ops &&
689 component->driver->compress_ops->set_metadata) {
690 ret = component->driver->compress_ops->set_metadata(
691 component, cstream, metadata);
693 return soc_component_ret(component, ret);
699 EXPORT_SYMBOL_GPL(snd_soc_component_compr_set_metadata);
701 int snd_soc_component_compr_get_metadata(struct snd_compr_stream *cstream,
702 struct snd_compr_metadata *metadata)
704 struct snd_soc_pcm_runtime *rtd = cstream->private_data;
705 struct snd_soc_component *component;
708 for_each_rtd_components(rtd, i, component) {
709 if (component->driver->compress_ops &&
710 component->driver->compress_ops->get_metadata) {
711 ret = component->driver->compress_ops->get_metadata(
712 component, cstream, metadata);
713 return soc_component_ret(component, ret);
719 EXPORT_SYMBOL_GPL(snd_soc_component_compr_get_metadata);
721 static unsigned int soc_component_read_no_lock(
722 struct snd_soc_component *component,
726 unsigned int val = 0;
728 if (component->regmap)
729 ret = regmap_read(component->regmap, reg, &val);
730 else if (component->driver->read) {
732 val = component->driver->read(component, reg);
738 return soc_component_ret_reg_rw(component, ret, reg);
744 * snd_soc_component_read() - Read register value
745 * @component: Component to read from
746 * @reg: Register to read
750 unsigned int snd_soc_component_read(struct snd_soc_component *component,
755 mutex_lock(&component->io_mutex);
756 val = soc_component_read_no_lock(component, reg);
757 mutex_unlock(&component->io_mutex);
761 EXPORT_SYMBOL_GPL(snd_soc_component_read);
763 static int soc_component_write_no_lock(
764 struct snd_soc_component *component,
765 unsigned int reg, unsigned int val)
769 if (component->regmap)
770 ret = regmap_write(component->regmap, reg, val);
771 else if (component->driver->write)
772 ret = component->driver->write(component, reg, val);
774 return soc_component_ret_reg_rw(component, ret, reg);
778 * snd_soc_component_write() - Write register value
779 * @component: Component to write to
780 * @reg: Register to write
781 * @val: Value to write to the register
783 * Return: 0 on success, a negative error code otherwise.
785 int snd_soc_component_write(struct snd_soc_component *component,
786 unsigned int reg, unsigned int val)
790 mutex_lock(&component->io_mutex);
791 ret = soc_component_write_no_lock(component, reg, val);
792 mutex_unlock(&component->io_mutex);
796 EXPORT_SYMBOL_GPL(snd_soc_component_write);
798 static int snd_soc_component_update_bits_legacy(
799 struct snd_soc_component *component, unsigned int reg,
800 unsigned int mask, unsigned int val, bool *change)
802 unsigned int old, new;
805 mutex_lock(&component->io_mutex);
807 old = soc_component_read_no_lock(component, reg);
809 new = (old & ~mask) | (val & mask);
810 *change = old != new;
812 ret = soc_component_write_no_lock(component, reg, new);
814 mutex_unlock(&component->io_mutex);
816 return soc_component_ret_reg_rw(component, ret, reg);
820 * snd_soc_component_update_bits() - Perform read/modify/write cycle
821 * @component: Component to update
822 * @reg: Register to update
823 * @mask: Mask that specifies which bits to update
824 * @val: New value for the bits specified by mask
826 * Return: 1 if the operation was successful and the value of the register
827 * changed, 0 if the operation was successful, but the value did not change.
828 * Returns a negative error code otherwise.
830 int snd_soc_component_update_bits(struct snd_soc_component *component,
831 unsigned int reg, unsigned int mask, unsigned int val)
836 if (component->regmap)
837 ret = regmap_update_bits_check(component->regmap, reg, mask,
840 ret = snd_soc_component_update_bits_legacy(component, reg,
844 return soc_component_ret_reg_rw(component, ret, reg);
847 EXPORT_SYMBOL_GPL(snd_soc_component_update_bits);
850 * snd_soc_component_update_bits_async() - Perform asynchronous
851 * read/modify/write cycle
852 * @component: Component to update
853 * @reg: Register to update
854 * @mask: Mask that specifies which bits to update
855 * @val: New value for the bits specified by mask
857 * This function is similar to snd_soc_component_update_bits(), but the update
858 * operation is scheduled asynchronously. This means it may not be completed
859 * when the function returns. To make sure that all scheduled updates have been
860 * completed snd_soc_component_async_complete() must be called.
862 * Return: 1 if the operation was successful and the value of the register
863 * changed, 0 if the operation was successful, but the value did not change.
864 * Returns a negative error code otherwise.
866 int snd_soc_component_update_bits_async(struct snd_soc_component *component,
867 unsigned int reg, unsigned int mask, unsigned int val)
872 if (component->regmap)
873 ret = regmap_update_bits_check_async(component->regmap, reg,
876 ret = snd_soc_component_update_bits_legacy(component, reg,
880 return soc_component_ret_reg_rw(component, ret, reg);
883 EXPORT_SYMBOL_GPL(snd_soc_component_update_bits_async);
886 * snd_soc_component_read_field() - Read register field value
887 * @component: Component to read from
888 * @reg: Register to read
889 * @mask: mask of the register field
891 * Return: read value of register field.
893 unsigned int snd_soc_component_read_field(struct snd_soc_component *component,
894 unsigned int reg, unsigned int mask)
898 val = snd_soc_component_read(component, reg);
900 val = (val & mask) >> soc_component_field_shift(component, mask);
904 EXPORT_SYMBOL_GPL(snd_soc_component_read_field);
907 * snd_soc_component_write_field() - write to register field
908 * @component: Component to write to
909 * @reg: Register to write
910 * @mask: mask of the register field to update
911 * @val: value of the field to write
913 * Return: 1 for change, otherwise 0.
915 int snd_soc_component_write_field(struct snd_soc_component *component,
916 unsigned int reg, unsigned int mask,
920 val = (val << soc_component_field_shift(component, mask)) & mask;
922 return snd_soc_component_update_bits(component, reg, mask, val);
924 EXPORT_SYMBOL_GPL(snd_soc_component_write_field);
927 * snd_soc_component_async_complete() - Ensure asynchronous I/O has completed
928 * @component: Component for which to wait
930 * This function blocks until all asynchronous I/O which has previously been
931 * scheduled using snd_soc_component_update_bits_async() has completed.
933 void snd_soc_component_async_complete(struct snd_soc_component *component)
935 if (component->regmap)
936 regmap_async_complete(component->regmap);
938 EXPORT_SYMBOL_GPL(snd_soc_component_async_complete);
941 * snd_soc_component_test_bits - Test register for change
942 * @component: component
943 * @reg: Register to test
944 * @mask: Mask that specifies which bits to test
945 * @value: Value to test against
947 * Tests a register with a new value and checks if the new value is
948 * different from the old value.
950 * Return: 1 for change, otherwise 0.
952 int snd_soc_component_test_bits(struct snd_soc_component *component,
953 unsigned int reg, unsigned int mask, unsigned int value)
955 unsigned int old, new;
957 old = snd_soc_component_read(component, reg);
958 new = (old & ~mask) | value;
961 EXPORT_SYMBOL_GPL(snd_soc_component_test_bits);
963 int snd_soc_pcm_component_pointer(struct snd_pcm_substream *substream)
965 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
966 struct snd_soc_component *component;
969 /* FIXME: use 1st pointer */
970 for_each_rtd_components(rtd, i, component)
971 if (component->driver->pointer)
972 return component->driver->pointer(component, substream);
977 static bool snd_soc_component_is_codec_on_rtd(struct snd_soc_pcm_runtime *rtd,
978 struct snd_soc_component *component)
980 struct snd_soc_dai *dai;
983 for_each_rtd_codec_dais(rtd, i, dai) {
984 if (dai->component == component)
991 void snd_soc_pcm_component_delay(struct snd_pcm_substream *substream,
992 snd_pcm_sframes_t *cpu_delay,
993 snd_pcm_sframes_t *codec_delay)
995 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
996 struct snd_soc_component *component;
997 snd_pcm_sframes_t delay;
1001 * We're looking for the delay through the full audio path so it needs to
1002 * be the maximum of the Components doing transmit and the maximum of the
1003 * Components doing receive (ie, all CPUs and all CODECs) rather than
1004 * just the maximum of all Components.
1006 for_each_rtd_components(rtd, i, component) {
1007 if (!component->driver->delay)
1010 delay = component->driver->delay(component, substream);
1012 if (snd_soc_component_is_codec_on_rtd(rtd, component))
1013 *codec_delay = max(*codec_delay, delay);
1015 *cpu_delay = max(*cpu_delay, delay);
1019 int snd_soc_pcm_component_ioctl(struct snd_pcm_substream *substream,
1020 unsigned int cmd, void *arg)
1022 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
1023 struct snd_soc_component *component;
1026 /* FIXME: use 1st ioctl */
1027 for_each_rtd_components(rtd, i, component)
1028 if (component->driver->ioctl)
1029 return soc_component_ret(
1031 component->driver->ioctl(component,
1032 substream, cmd, arg));
1034 return snd_pcm_lib_ioctl(substream, cmd, arg);
1037 int snd_soc_pcm_component_sync_stop(struct snd_pcm_substream *substream)
1039 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
1040 struct snd_soc_component *component;
1043 for_each_rtd_components(rtd, i, component) {
1044 if (component->driver->sync_stop) {
1045 ret = component->driver->sync_stop(component,
1048 return soc_component_ret(component, ret);
1055 int snd_soc_pcm_component_copy(struct snd_pcm_substream *substream,
1056 int channel, unsigned long pos,
1057 struct iov_iter *iter, unsigned long bytes)
1059 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
1060 struct snd_soc_component *component;
1063 /* FIXME. it returns 1st copy now */
1064 for_each_rtd_components(rtd, i, component)
1065 if (component->driver->copy)
1066 return soc_component_ret(component,
1067 component->driver->copy(component, substream,
1068 channel, pos, iter, bytes));
1073 struct page *snd_soc_pcm_component_page(struct snd_pcm_substream *substream,
1074 unsigned long offset)
1076 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
1077 struct snd_soc_component *component;
1081 /* FIXME. it returns 1st page now */
1082 for_each_rtd_components(rtd, i, component) {
1083 if (component->driver->page) {
1084 page = component->driver->page(component,
1094 int snd_soc_pcm_component_mmap(struct snd_pcm_substream *substream,
1095 struct vm_area_struct *vma)
1097 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
1098 struct snd_soc_component *component;
1101 /* FIXME. it returns 1st mmap now */
1102 for_each_rtd_components(rtd, i, component)
1103 if (component->driver->mmap)
1104 return soc_component_ret(
1106 component->driver->mmap(component,
1112 int snd_soc_pcm_component_new(struct snd_soc_pcm_runtime *rtd)
1114 struct snd_soc_component *component;
1118 for_each_rtd_components(rtd, i, component) {
1119 if (component->driver->pcm_construct) {
1120 ret = component->driver->pcm_construct(component, rtd);
1122 return soc_component_ret(component, ret);
1129 void snd_soc_pcm_component_free(struct snd_soc_pcm_runtime *rtd)
1131 struct snd_soc_component *component;
1137 for_each_rtd_components(rtd, i, component)
1138 if (component->driver->pcm_destruct)
1139 component->driver->pcm_destruct(component, rtd->pcm);
1142 int snd_soc_pcm_component_prepare(struct snd_pcm_substream *substream)
1144 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
1145 struct snd_soc_component *component;
1148 for_each_rtd_components(rtd, i, component) {
1149 if (component->driver->prepare) {
1150 ret = component->driver->prepare(component, substream);
1152 return soc_component_ret(component, ret);
1159 int snd_soc_pcm_component_hw_params(struct snd_pcm_substream *substream,
1160 struct snd_pcm_hw_params *params)
1162 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
1163 struct snd_soc_component *component;
1166 for_each_rtd_components(rtd, i, component) {
1167 if (component->driver->hw_params) {
1168 ret = component->driver->hw_params(component,
1171 return soc_component_ret(component, ret);
1173 /* mark substream if succeeded */
1174 soc_component_mark_push(component, substream, hw_params);
1180 void snd_soc_pcm_component_hw_free(struct snd_pcm_substream *substream,
1183 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
1184 struct snd_soc_component *component;
1187 for_each_rtd_components(rtd, i, component) {
1188 if (rollback && !soc_component_mark_match(component, substream, hw_params))
1191 if (component->driver->hw_free) {
1192 ret = component->driver->hw_free(component, substream);
1194 soc_component_ret(component, ret);
1197 /* remove marked substream */
1198 soc_component_mark_pop(component, substream, hw_params);
1202 static int soc_component_trigger(struct snd_soc_component *component,
1203 struct snd_pcm_substream *substream,
1208 if (component->driver->trigger)
1209 ret = component->driver->trigger(component, substream, cmd);
1211 return soc_component_ret(component, ret);
1214 int snd_soc_pcm_component_trigger(struct snd_pcm_substream *substream,
1215 int cmd, int rollback)
1217 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
1218 struct snd_soc_component *component;
1222 case SNDRV_PCM_TRIGGER_START:
1223 case SNDRV_PCM_TRIGGER_RESUME:
1224 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
1225 for_each_rtd_components(rtd, i, component) {
1226 ret = soc_component_trigger(component, substream, cmd);
1229 soc_component_mark_push(component, substream, trigger);
1232 case SNDRV_PCM_TRIGGER_STOP:
1233 case SNDRV_PCM_TRIGGER_SUSPEND:
1234 case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
1235 for_each_rtd_components(rtd, i, component) {
1236 if (rollback && !soc_component_mark_match(component, substream, trigger))
1239 r = soc_component_trigger(component, substream, cmd);
1241 ret = r; /* use last ret */
1242 soc_component_mark_pop(component, substream, trigger);
1249 int snd_soc_pcm_component_pm_runtime_get(struct snd_soc_pcm_runtime *rtd,
1252 struct snd_soc_component *component;
1255 for_each_rtd_components(rtd, i, component) {
1256 int ret = pm_runtime_get_sync(component->dev);
1257 if (ret < 0 && ret != -EACCES) {
1258 pm_runtime_put_noidle(component->dev);
1259 return soc_component_ret(component, ret);
1261 /* mark stream if succeeded */
1262 soc_component_mark_push(component, stream, pm);
1268 void snd_soc_pcm_component_pm_runtime_put(struct snd_soc_pcm_runtime *rtd,
1269 void *stream, int rollback)
1271 struct snd_soc_component *component;
1274 for_each_rtd_components(rtd, i, component) {
1275 if (rollback && !soc_component_mark_match(component, stream, pm))
1278 pm_runtime_mark_last_busy(component->dev);
1279 pm_runtime_put_autosuspend(component->dev);
1281 /* remove marked stream */
1282 soc_component_mark_pop(component, stream, pm);
1286 int snd_soc_pcm_component_ack(struct snd_pcm_substream *substream)
1288 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
1289 struct snd_soc_component *component;
1292 /* FIXME: use 1st pointer */
1293 for_each_rtd_components(rtd, i, component)
1294 if (component->driver->ack)
1295 return component->driver->ack(component, substream);