2 * soc-core.c -- ALSA SoC Audio Layer
4 * Copyright 2005 Wolfson Microelectronics PLC.
5 * Copyright 2005 Openedhand Ltd.
6 * Copyright (C) 2010 Slimlogic Ltd.
7 * Copyright (C) 2010 Texas Instruments Inc.
9 * Author: Liam Girdwood <lrg@slimlogic.co.uk>
10 * with code, comments and ideas from :-
11 * Richard Purdie <richard@openedhand.com>
13 * This program is free software; you can redistribute it and/or modify it
14 * under the terms of the GNU General Public License as published by the
15 * Free Software Foundation; either version 2 of the License, or (at your
16 * option) any later version.
19 * o Add hw rules to enforce rates, etc.
20 * o More testing with other codecs/machines.
21 * o Add more codecs and platforms to ensure good API coverage.
22 * o Support TDM on PCM and I2S
25 #include <linux/module.h>
26 #include <linux/moduleparam.h>
27 #include <linux/init.h>
28 #include <linux/delay.h>
30 #include <linux/bitops.h>
31 #include <linux/debugfs.h>
32 #include <linux/platform_device.h>
33 #include <linux/ctype.h>
34 #include <linux/slab.h>
36 #include <sound/ac97_codec.h>
37 #include <sound/core.h>
38 #include <sound/jack.h>
39 #include <sound/pcm.h>
40 #include <sound/pcm_params.h>
41 #include <sound/soc.h>
42 #include <sound/soc-dpcm.h>
43 #include <sound/initval.h>
45 #define CREATE_TRACE_POINTS
46 #include <trace/events/asoc.h>
50 static DECLARE_WAIT_QUEUE_HEAD(soc_pm_waitq
);
52 #ifdef CONFIG_DEBUG_FS
53 struct dentry
*snd_soc_debugfs_root
;
54 EXPORT_SYMBOL_GPL(snd_soc_debugfs_root
);
57 static DEFINE_MUTEX(client_mutex
);
58 static LIST_HEAD(dai_list
);
59 static LIST_HEAD(platform_list
);
60 static LIST_HEAD(codec_list
);
63 * This is a timeout to do a DAPM powerdown after a stream is closed().
64 * It can be used to eliminate pops between different playback streams, e.g.
65 * between two audio tracks.
67 static int pmdown_time
= 5000;
68 module_param(pmdown_time
, int, 0);
69 MODULE_PARM_DESC(pmdown_time
, "DAPM stream powerdown time (msecs)");
71 /* returns the minimum number of bytes needed to represent
72 * a particular given value */
73 static int min_bytes_needed(unsigned long val
)
78 for (i
= (sizeof val
* 8) - 1; i
>= 0; --i
, ++c
)
81 c
= (sizeof val
* 8) - c
;
89 /* fill buf which is 'len' bytes with a formatted
90 * string of the form 'reg: value\n' */
91 static int format_register_str(struct snd_soc_codec
*codec
,
92 unsigned int reg
, char *buf
, size_t len
)
94 int wordsize
= min_bytes_needed(codec
->driver
->reg_cache_size
) * 2;
95 int regsize
= codec
->driver
->reg_word_size
* 2;
98 char regbuf
[regsize
+ 1];
100 /* since tmpbuf is allocated on the stack, warn the callers if they
101 * try to abuse this function */
104 /* +2 for ': ' and + 1 for '\n' */
105 if (wordsize
+ regsize
+ 2 + 1 != len
)
108 ret
= snd_soc_read(codec
, reg
);
110 memset(regbuf
, 'X', regsize
);
111 regbuf
[regsize
] = '\0';
113 snprintf(regbuf
, regsize
+ 1, "%.*x", regsize
, ret
);
116 /* prepare the buffer */
117 snprintf(tmpbuf
, len
+ 1, "%.*x: %s\n", wordsize
, reg
, regbuf
);
118 /* copy it back to the caller without the '\0' */
119 memcpy(buf
, tmpbuf
, len
);
124 /* codec register dump */
125 static ssize_t
soc_codec_reg_show(struct snd_soc_codec
*codec
, char *buf
,
126 size_t count
, loff_t pos
)
129 int wordsize
, regsize
;
134 wordsize
= min_bytes_needed(codec
->driver
->reg_cache_size
) * 2;
135 regsize
= codec
->driver
->reg_word_size
* 2;
137 len
= wordsize
+ regsize
+ 2 + 1;
139 if (!codec
->driver
->reg_cache_size
)
142 if (codec
->driver
->reg_cache_step
)
143 step
= codec
->driver
->reg_cache_step
;
145 for (i
= 0; i
< codec
->driver
->reg_cache_size
; i
+= step
) {
146 if (!snd_soc_codec_readable_register(codec
, i
))
148 if (codec
->driver
->display_register
) {
149 count
+= codec
->driver
->display_register(codec
, buf
+ count
,
150 PAGE_SIZE
- count
, i
);
152 /* only support larger than PAGE_SIZE bytes debugfs
153 * entries for the default case */
155 if (total
+ len
>= count
- 1)
157 format_register_str(codec
, i
, buf
+ total
, len
);
164 total
= min(total
, count
- 1);
169 static ssize_t
codec_reg_show(struct device
*dev
,
170 struct device_attribute
*attr
, char *buf
)
172 struct snd_soc_pcm_runtime
*rtd
= dev_get_drvdata(dev
);
174 return soc_codec_reg_show(rtd
->codec
, buf
, PAGE_SIZE
, 0);
177 static DEVICE_ATTR(codec_reg
, 0444, codec_reg_show
, NULL
);
179 static ssize_t
pmdown_time_show(struct device
*dev
,
180 struct device_attribute
*attr
, char *buf
)
182 struct snd_soc_pcm_runtime
*rtd
= dev_get_drvdata(dev
);
184 return sprintf(buf
, "%ld\n", rtd
->pmdown_time
);
187 static ssize_t
pmdown_time_set(struct device
*dev
,
188 struct device_attribute
*attr
,
189 const char *buf
, size_t count
)
191 struct snd_soc_pcm_runtime
*rtd
= dev_get_drvdata(dev
);
194 ret
= strict_strtol(buf
, 10, &rtd
->pmdown_time
);
201 static DEVICE_ATTR(pmdown_time
, 0644, pmdown_time_show
, pmdown_time_set
);
203 #ifdef CONFIG_DEBUG_FS
204 static ssize_t
codec_reg_read_file(struct file
*file
, char __user
*user_buf
,
205 size_t count
, loff_t
*ppos
)
208 struct snd_soc_codec
*codec
= file
->private_data
;
211 if (*ppos
< 0 || !count
)
214 buf
= kmalloc(count
, GFP_KERNEL
);
218 ret
= soc_codec_reg_show(codec
, buf
, count
, *ppos
);
220 if (copy_to_user(user_buf
, buf
, ret
)) {
231 static ssize_t
codec_reg_write_file(struct file
*file
,
232 const char __user
*user_buf
, size_t count
, loff_t
*ppos
)
237 unsigned long reg
, value
;
238 struct snd_soc_codec
*codec
= file
->private_data
;
240 buf_size
= min(count
, (sizeof(buf
)-1));
241 if (copy_from_user(buf
, user_buf
, buf_size
))
245 while (*start
== ' ')
247 reg
= simple_strtoul(start
, &start
, 16);
248 while (*start
== ' ')
250 if (strict_strtoul(start
, 16, &value
))
253 /* Userspace has been fiddling around behind the kernel's back */
254 add_taint(TAINT_USER
, LOCKDEP_NOW_UNRELIABLE
);
256 snd_soc_write(codec
, reg
, value
);
260 static const struct file_operations codec_reg_fops
= {
262 .read
= codec_reg_read_file
,
263 .write
= codec_reg_write_file
,
264 .llseek
= default_llseek
,
267 static void soc_init_codec_debugfs(struct snd_soc_codec
*codec
)
269 struct dentry
*debugfs_card_root
= codec
->card
->debugfs_card_root
;
271 codec
->debugfs_codec_root
= debugfs_create_dir(codec
->name
,
273 if (!codec
->debugfs_codec_root
) {
274 dev_warn(codec
->dev
, "ASoC: Failed to create codec debugfs"
279 debugfs_create_bool("cache_sync", 0444, codec
->debugfs_codec_root
,
281 debugfs_create_bool("cache_only", 0444, codec
->debugfs_codec_root
,
284 codec
->debugfs_reg
= debugfs_create_file("codec_reg", 0644,
285 codec
->debugfs_codec_root
,
286 codec
, &codec_reg_fops
);
287 if (!codec
->debugfs_reg
)
288 dev_warn(codec
->dev
, "ASoC: Failed to create codec register"
291 snd_soc_dapm_debugfs_init(&codec
->dapm
, codec
->debugfs_codec_root
);
294 static void soc_cleanup_codec_debugfs(struct snd_soc_codec
*codec
)
296 debugfs_remove_recursive(codec
->debugfs_codec_root
);
299 static void soc_init_platform_debugfs(struct snd_soc_platform
*platform
)
301 struct dentry
*debugfs_card_root
= platform
->card
->debugfs_card_root
;
303 platform
->debugfs_platform_root
= debugfs_create_dir(platform
->name
,
305 if (!platform
->debugfs_platform_root
) {
306 dev_warn(platform
->dev
,
307 "ASoC: Failed to create platform debugfs directory\n");
311 snd_soc_dapm_debugfs_init(&platform
->dapm
,
312 platform
->debugfs_platform_root
);
315 static void soc_cleanup_platform_debugfs(struct snd_soc_platform
*platform
)
317 debugfs_remove_recursive(platform
->debugfs_platform_root
);
320 static ssize_t
codec_list_read_file(struct file
*file
, char __user
*user_buf
,
321 size_t count
, loff_t
*ppos
)
323 char *buf
= kmalloc(PAGE_SIZE
, GFP_KERNEL
);
324 ssize_t len
, ret
= 0;
325 struct snd_soc_codec
*codec
;
330 list_for_each_entry(codec
, &codec_list
, list
) {
331 len
= snprintf(buf
+ ret
, PAGE_SIZE
- ret
, "%s\n",
335 if (ret
> PAGE_SIZE
) {
342 ret
= simple_read_from_buffer(user_buf
, count
, ppos
, buf
, ret
);
349 static const struct file_operations codec_list_fops
= {
350 .read
= codec_list_read_file
,
351 .llseek
= default_llseek
,/* read accesses f_pos */
354 static ssize_t
dai_list_read_file(struct file
*file
, char __user
*user_buf
,
355 size_t count
, loff_t
*ppos
)
357 char *buf
= kmalloc(PAGE_SIZE
, GFP_KERNEL
);
358 ssize_t len
, ret
= 0;
359 struct snd_soc_dai
*dai
;
364 list_for_each_entry(dai
, &dai_list
, list
) {
365 len
= snprintf(buf
+ ret
, PAGE_SIZE
- ret
, "%s\n", dai
->name
);
368 if (ret
> PAGE_SIZE
) {
374 ret
= simple_read_from_buffer(user_buf
, count
, ppos
, buf
, ret
);
381 static const struct file_operations dai_list_fops
= {
382 .read
= dai_list_read_file
,
383 .llseek
= default_llseek
,/* read accesses f_pos */
386 static ssize_t
platform_list_read_file(struct file
*file
,
387 char __user
*user_buf
,
388 size_t count
, loff_t
*ppos
)
390 char *buf
= kmalloc(PAGE_SIZE
, GFP_KERNEL
);
391 ssize_t len
, ret
= 0;
392 struct snd_soc_platform
*platform
;
397 list_for_each_entry(platform
, &platform_list
, list
) {
398 len
= snprintf(buf
+ ret
, PAGE_SIZE
- ret
, "%s\n",
402 if (ret
> PAGE_SIZE
) {
408 ret
= simple_read_from_buffer(user_buf
, count
, ppos
, buf
, ret
);
415 static const struct file_operations platform_list_fops
= {
416 .read
= platform_list_read_file
,
417 .llseek
= default_llseek
,/* read accesses f_pos */
420 static void soc_init_card_debugfs(struct snd_soc_card
*card
)
422 card
->debugfs_card_root
= debugfs_create_dir(card
->name
,
423 snd_soc_debugfs_root
);
424 if (!card
->debugfs_card_root
) {
426 "ASoC: Failed to create card debugfs directory\n");
430 card
->debugfs_pop_time
= debugfs_create_u32("dapm_pop_time", 0644,
431 card
->debugfs_card_root
,
433 if (!card
->debugfs_pop_time
)
435 "ASoC: Failed to create pop time debugfs file\n");
438 static void soc_cleanup_card_debugfs(struct snd_soc_card
*card
)
440 debugfs_remove_recursive(card
->debugfs_card_root
);
445 static inline void soc_init_codec_debugfs(struct snd_soc_codec
*codec
)
449 static inline void soc_cleanup_codec_debugfs(struct snd_soc_codec
*codec
)
453 static inline void soc_init_platform_debugfs(struct snd_soc_platform
*platform
)
457 static inline void soc_cleanup_platform_debugfs(struct snd_soc_platform
*platform
)
461 static inline void soc_init_card_debugfs(struct snd_soc_card
*card
)
465 static inline void soc_cleanup_card_debugfs(struct snd_soc_card
*card
)
470 struct snd_pcm_substream
*snd_soc_get_dai_substream(struct snd_soc_card
*card
,
471 const char *dai_link
, int stream
)
475 for (i
= 0; i
< card
->num_links
; i
++) {
476 if (card
->rtd
[i
].dai_link
->no_pcm
&&
477 !strcmp(card
->rtd
[i
].dai_link
->name
, dai_link
))
478 return card
->rtd
[i
].pcm
->streams
[stream
].substream
;
480 dev_dbg(card
->dev
, "ASoC: failed to find dai link %s\n", dai_link
);
483 EXPORT_SYMBOL_GPL(snd_soc_get_dai_substream
);
485 struct snd_soc_pcm_runtime
*snd_soc_get_pcm_runtime(struct snd_soc_card
*card
,
486 const char *dai_link
)
490 for (i
= 0; i
< card
->num_links
; i
++) {
491 if (!strcmp(card
->rtd
[i
].dai_link
->name
, dai_link
))
492 return &card
->rtd
[i
];
494 dev_dbg(card
->dev
, "ASoC: failed to find rtd %s\n", dai_link
);
497 EXPORT_SYMBOL_GPL(snd_soc_get_pcm_runtime
);
499 #ifdef CONFIG_SND_SOC_AC97_BUS
500 /* unregister ac97 codec */
501 static int soc_ac97_dev_unregister(struct snd_soc_codec
*codec
)
503 if (codec
->ac97
->dev
.bus
)
504 device_unregister(&codec
->ac97
->dev
);
508 /* stop no dev release warning */
509 static void soc_ac97_device_release(struct device
*dev
){}
511 /* register ac97 codec to bus */
512 static int soc_ac97_dev_register(struct snd_soc_codec
*codec
)
516 codec
->ac97
->dev
.bus
= &ac97_bus_type
;
517 codec
->ac97
->dev
.parent
= codec
->card
->dev
;
518 codec
->ac97
->dev
.release
= soc_ac97_device_release
;
520 dev_set_name(&codec
->ac97
->dev
, "%d-%d:%s",
521 codec
->card
->snd_card
->number
, 0, codec
->name
);
522 err
= device_register(&codec
->ac97
->dev
);
524 dev_err(codec
->dev
, "ASoC: Can't register ac97 bus\n");
525 codec
->ac97
->dev
.bus
= NULL
;
532 #ifdef CONFIG_PM_SLEEP
533 /* powers down audio subsystem for suspend */
534 int snd_soc_suspend(struct device
*dev
)
536 struct snd_soc_card
*card
= dev_get_drvdata(dev
);
537 struct snd_soc_codec
*codec
;
540 /* If the initialization of this soc device failed, there is no codec
541 * associated with it. Just bail out in this case.
543 if (list_empty(&card
->codec_dev_list
))
546 /* Due to the resume being scheduled into a workqueue we could
547 * suspend before that's finished - wait for it to complete.
549 snd_power_lock(card
->snd_card
);
550 snd_power_wait(card
->snd_card
, SNDRV_CTL_POWER_D0
);
551 snd_power_unlock(card
->snd_card
);
553 /* we're going to block userspace touching us until resume completes */
554 snd_power_change_state(card
->snd_card
, SNDRV_CTL_POWER_D3hot
);
556 /* mute any active DACs */
557 for (i
= 0; i
< card
->num_rtd
; i
++) {
558 struct snd_soc_dai
*dai
= card
->rtd
[i
].codec_dai
;
559 struct snd_soc_dai_driver
*drv
= dai
->driver
;
561 if (card
->rtd
[i
].dai_link
->ignore_suspend
)
564 if (drv
->ops
->digital_mute
&& dai
->playback_active
)
565 drv
->ops
->digital_mute(dai
, 1);
568 /* suspend all pcms */
569 for (i
= 0; i
< card
->num_rtd
; i
++) {
570 if (card
->rtd
[i
].dai_link
->ignore_suspend
)
573 snd_pcm_suspend_all(card
->rtd
[i
].pcm
);
576 if (card
->suspend_pre
)
577 card
->suspend_pre(card
);
579 for (i
= 0; i
< card
->num_rtd
; i
++) {
580 struct snd_soc_dai
*cpu_dai
= card
->rtd
[i
].cpu_dai
;
581 struct snd_soc_platform
*platform
= card
->rtd
[i
].platform
;
583 if (card
->rtd
[i
].dai_link
->ignore_suspend
)
586 if (cpu_dai
->driver
->suspend
&& !cpu_dai
->driver
->ac97_control
)
587 cpu_dai
->driver
->suspend(cpu_dai
);
588 if (platform
->driver
->suspend
&& !platform
->suspended
) {
589 platform
->driver
->suspend(cpu_dai
);
590 platform
->suspended
= 1;
594 /* close any waiting streams and save state */
595 for (i
= 0; i
< card
->num_rtd
; i
++) {
596 flush_delayed_work(&card
->rtd
[i
].delayed_work
);
597 card
->rtd
[i
].codec
->dapm
.suspend_bias_level
= card
->rtd
[i
].codec
->dapm
.bias_level
;
600 for (i
= 0; i
< card
->num_rtd
; i
++) {
602 if (card
->rtd
[i
].dai_link
->ignore_suspend
)
605 snd_soc_dapm_stream_event(&card
->rtd
[i
],
606 SNDRV_PCM_STREAM_PLAYBACK
,
607 SND_SOC_DAPM_STREAM_SUSPEND
);
609 snd_soc_dapm_stream_event(&card
->rtd
[i
],
610 SNDRV_PCM_STREAM_CAPTURE
,
611 SND_SOC_DAPM_STREAM_SUSPEND
);
614 /* Recheck all analogue paths too */
615 dapm_mark_io_dirty(&card
->dapm
);
616 snd_soc_dapm_sync(&card
->dapm
);
618 /* suspend all CODECs */
619 list_for_each_entry(codec
, &card
->codec_dev_list
, card_list
) {
620 /* If there are paths active then the CODEC will be held with
621 * bias _ON and should not be suspended. */
622 if (!codec
->suspended
&& codec
->driver
->suspend
) {
623 switch (codec
->dapm
.bias_level
) {
624 case SND_SOC_BIAS_STANDBY
:
626 * If the CODEC is capable of idle
627 * bias off then being in STANDBY
628 * means it's doing something,
629 * otherwise fall through.
631 if (codec
->dapm
.idle_bias_off
) {
633 "ASoC: idle_bias_off CODEC on"
637 case SND_SOC_BIAS_OFF
:
638 codec
->driver
->suspend(codec
);
639 codec
->suspended
= 1;
640 codec
->cache_sync
= 1;
641 if (codec
->using_regmap
)
642 regcache_mark_dirty(codec
->control_data
);
645 dev_dbg(codec
->dev
, "ASoC: CODEC is on"
652 for (i
= 0; i
< card
->num_rtd
; i
++) {
653 struct snd_soc_dai
*cpu_dai
= card
->rtd
[i
].cpu_dai
;
655 if (card
->rtd
[i
].dai_link
->ignore_suspend
)
658 if (cpu_dai
->driver
->suspend
&& cpu_dai
->driver
->ac97_control
)
659 cpu_dai
->driver
->suspend(cpu_dai
);
662 if (card
->suspend_post
)
663 card
->suspend_post(card
);
667 EXPORT_SYMBOL_GPL(snd_soc_suspend
);
669 /* deferred resume work, so resume can complete before we finished
670 * setting our codec back up, which can be very slow on I2C
672 static void soc_resume_deferred(struct work_struct
*work
)
674 struct snd_soc_card
*card
=
675 container_of(work
, struct snd_soc_card
, deferred_resume_work
);
676 struct snd_soc_codec
*codec
;
679 /* our power state is still SNDRV_CTL_POWER_D3hot from suspend time,
680 * so userspace apps are blocked from touching us
683 dev_dbg(card
->dev
, "ASoC: starting resume work\n");
685 /* Bring us up into D2 so that DAPM starts enabling things */
686 snd_power_change_state(card
->snd_card
, SNDRV_CTL_POWER_D2
);
688 if (card
->resume_pre
)
689 card
->resume_pre(card
);
691 /* resume AC97 DAIs */
692 for (i
= 0; i
< card
->num_rtd
; i
++) {
693 struct snd_soc_dai
*cpu_dai
= card
->rtd
[i
].cpu_dai
;
695 if (card
->rtd
[i
].dai_link
->ignore_suspend
)
698 if (cpu_dai
->driver
->resume
&& cpu_dai
->driver
->ac97_control
)
699 cpu_dai
->driver
->resume(cpu_dai
);
702 list_for_each_entry(codec
, &card
->codec_dev_list
, card_list
) {
703 /* If the CODEC was idle over suspend then it will have been
704 * left with bias OFF or STANDBY and suspended so we must now
705 * resume. Otherwise the suspend was suppressed.
707 if (codec
->driver
->resume
&& codec
->suspended
) {
708 switch (codec
->dapm
.bias_level
) {
709 case SND_SOC_BIAS_STANDBY
:
710 case SND_SOC_BIAS_OFF
:
711 codec
->driver
->resume(codec
);
712 codec
->suspended
= 0;
715 dev_dbg(codec
->dev
, "ASoC: CODEC was on over"
722 for (i
= 0; i
< card
->num_rtd
; i
++) {
724 if (card
->rtd
[i
].dai_link
->ignore_suspend
)
727 snd_soc_dapm_stream_event(&card
->rtd
[i
],
728 SNDRV_PCM_STREAM_PLAYBACK
,
729 SND_SOC_DAPM_STREAM_RESUME
);
731 snd_soc_dapm_stream_event(&card
->rtd
[i
],
732 SNDRV_PCM_STREAM_CAPTURE
,
733 SND_SOC_DAPM_STREAM_RESUME
);
736 /* unmute any active DACs */
737 for (i
= 0; i
< card
->num_rtd
; i
++) {
738 struct snd_soc_dai
*dai
= card
->rtd
[i
].codec_dai
;
739 struct snd_soc_dai_driver
*drv
= dai
->driver
;
741 if (card
->rtd
[i
].dai_link
->ignore_suspend
)
744 if (drv
->ops
->digital_mute
&& dai
->playback_active
)
745 drv
->ops
->digital_mute(dai
, 0);
748 for (i
= 0; i
< card
->num_rtd
; i
++) {
749 struct snd_soc_dai
*cpu_dai
= card
->rtd
[i
].cpu_dai
;
750 struct snd_soc_platform
*platform
= card
->rtd
[i
].platform
;
752 if (card
->rtd
[i
].dai_link
->ignore_suspend
)
755 if (cpu_dai
->driver
->resume
&& !cpu_dai
->driver
->ac97_control
)
756 cpu_dai
->driver
->resume(cpu_dai
);
757 if (platform
->driver
->resume
&& platform
->suspended
) {
758 platform
->driver
->resume(cpu_dai
);
759 platform
->suspended
= 0;
763 if (card
->resume_post
)
764 card
->resume_post(card
);
766 dev_dbg(card
->dev
, "ASoC: resume work completed\n");
768 /* userspace can access us now we are back as we were before */
769 snd_power_change_state(card
->snd_card
, SNDRV_CTL_POWER_D0
);
771 /* Recheck all analogue paths too */
772 dapm_mark_io_dirty(&card
->dapm
);
773 snd_soc_dapm_sync(&card
->dapm
);
776 /* powers up audio subsystem after a suspend */
777 int snd_soc_resume(struct device
*dev
)
779 struct snd_soc_card
*card
= dev_get_drvdata(dev
);
780 int i
, ac97_control
= 0;
782 /* If the initialization of this soc device failed, there is no codec
783 * associated with it. Just bail out in this case.
785 if (list_empty(&card
->codec_dev_list
))
788 /* AC97 devices might have other drivers hanging off them so
789 * need to resume immediately. Other drivers don't have that
790 * problem and may take a substantial amount of time to resume
791 * due to I/O costs and anti-pop so handle them out of line.
793 for (i
= 0; i
< card
->num_rtd
; i
++) {
794 struct snd_soc_dai
*cpu_dai
= card
->rtd
[i
].cpu_dai
;
795 ac97_control
|= cpu_dai
->driver
->ac97_control
;
798 dev_dbg(dev
, "ASoC: Resuming AC97 immediately\n");
799 soc_resume_deferred(&card
->deferred_resume_work
);
801 dev_dbg(dev
, "ASoC: Scheduling resume work\n");
802 if (!schedule_work(&card
->deferred_resume_work
))
803 dev_err(dev
, "ASoC: resume work item may be lost\n");
808 EXPORT_SYMBOL_GPL(snd_soc_resume
);
810 #define snd_soc_suspend NULL
811 #define snd_soc_resume NULL
814 static const struct snd_soc_dai_ops null_dai_ops
= {
817 static int soc_bind_dai_link(struct snd_soc_card
*card
, int num
)
819 struct snd_soc_dai_link
*dai_link
= &card
->dai_link
[num
];
820 struct snd_soc_pcm_runtime
*rtd
= &card
->rtd
[num
];
821 struct snd_soc_codec
*codec
;
822 struct snd_soc_platform
*platform
;
823 struct snd_soc_dai
*codec_dai
, *cpu_dai
;
824 const char *platform_name
;
826 dev_dbg(card
->dev
, "ASoC: binding %s at idx %d\n", dai_link
->name
, num
);
828 /* Find CPU DAI from registered DAIs*/
829 list_for_each_entry(cpu_dai
, &dai_list
, list
) {
830 if (dai_link
->cpu_of_node
&&
831 (cpu_dai
->dev
->of_node
!= dai_link
->cpu_of_node
))
833 if (dai_link
->cpu_name
&&
834 strcmp(dev_name(cpu_dai
->dev
), dai_link
->cpu_name
))
836 if (dai_link
->cpu_dai_name
&&
837 strcmp(cpu_dai
->name
, dai_link
->cpu_dai_name
))
840 rtd
->cpu_dai
= cpu_dai
;
844 dev_err(card
->dev
, "ASoC: CPU DAI %s not registered\n",
845 dai_link
->cpu_dai_name
);
846 return -EPROBE_DEFER
;
849 /* Find CODEC from registered CODECs */
850 list_for_each_entry(codec
, &codec_list
, list
) {
851 if (dai_link
->codec_of_node
) {
852 if (codec
->dev
->of_node
!= dai_link
->codec_of_node
)
855 if (strcmp(codec
->name
, dai_link
->codec_name
))
862 * CODEC found, so find CODEC DAI from registered DAIs from
865 list_for_each_entry(codec_dai
, &dai_list
, list
) {
866 if (codec
->dev
== codec_dai
->dev
&&
867 !strcmp(codec_dai
->name
,
868 dai_link
->codec_dai_name
)) {
870 rtd
->codec_dai
= codec_dai
;
874 if (!rtd
->codec_dai
) {
875 dev_err(card
->dev
, "ASoC: CODEC DAI %s not registered\n",
876 dai_link
->codec_dai_name
);
877 return -EPROBE_DEFER
;
882 dev_err(card
->dev
, "ASoC: CODEC %s not registered\n",
883 dai_link
->codec_name
);
884 return -EPROBE_DEFER
;
887 /* if there's no platform we match on the empty platform */
888 platform_name
= dai_link
->platform_name
;
889 if (!platform_name
&& !dai_link
->platform_of_node
)
890 platform_name
= "snd-soc-dummy";
892 /* find one from the set of registered platforms */
893 list_for_each_entry(platform
, &platform_list
, list
) {
894 if (dai_link
->platform_of_node
) {
895 if (platform
->dev
->of_node
!=
896 dai_link
->platform_of_node
)
899 if (strcmp(platform
->name
, platform_name
))
903 rtd
->platform
= platform
;
905 if (!rtd
->platform
) {
906 dev_err(card
->dev
, "ASoC: platform %s not registered\n",
907 dai_link
->platform_name
);
908 return -EPROBE_DEFER
;
916 static int soc_remove_platform(struct snd_soc_platform
*platform
)
920 if (platform
->driver
->remove
) {
921 ret
= platform
->driver
->remove(platform
);
923 dev_err(platform
->dev
, "ASoC: failed to remove %d\n",
927 /* Make sure all DAPM widgets are freed */
928 snd_soc_dapm_free(&platform
->dapm
);
930 soc_cleanup_platform_debugfs(platform
);
931 platform
->probed
= 0;
932 list_del(&platform
->card_list
);
933 module_put(platform
->dev
->driver
->owner
);
938 static void soc_remove_codec(struct snd_soc_codec
*codec
)
942 if (codec
->driver
->remove
) {
943 err
= codec
->driver
->remove(codec
);
945 dev_err(codec
->dev
, "ASoC: failed to remove %d\n", err
);
948 /* Make sure all DAPM widgets are freed */
949 snd_soc_dapm_free(&codec
->dapm
);
951 soc_cleanup_codec_debugfs(codec
);
953 list_del(&codec
->card_list
);
954 module_put(codec
->dev
->driver
->owner
);
957 static void soc_remove_link_dais(struct snd_soc_card
*card
, int num
, int order
)
959 struct snd_soc_pcm_runtime
*rtd
= &card
->rtd
[num
];
960 struct snd_soc_dai
*codec_dai
= rtd
->codec_dai
, *cpu_dai
= rtd
->cpu_dai
;
963 /* unregister the rtd device */
964 if (rtd
->dev_registered
) {
965 device_remove_file(rtd
->dev
, &dev_attr_pmdown_time
);
966 device_remove_file(rtd
->dev
, &dev_attr_codec_reg
);
967 device_unregister(rtd
->dev
);
968 rtd
->dev_registered
= 0;
971 /* remove the CODEC DAI */
972 if (codec_dai
&& codec_dai
->probed
&&
973 codec_dai
->driver
->remove_order
== order
) {
974 if (codec_dai
->driver
->remove
) {
975 err
= codec_dai
->driver
->remove(codec_dai
);
977 dev_err(codec_dai
->dev
,
978 "ASoC: failed to remove %s: %d\n",
979 codec_dai
->name
, err
);
981 codec_dai
->probed
= 0;
982 list_del(&codec_dai
->card_list
);
985 /* remove the cpu_dai */
986 if (cpu_dai
&& cpu_dai
->probed
&&
987 cpu_dai
->driver
->remove_order
== order
) {
988 if (cpu_dai
->driver
->remove
) {
989 err
= cpu_dai
->driver
->remove(cpu_dai
);
991 dev_err(cpu_dai
->dev
,
992 "ASoC: failed to remove %s: %d\n",
996 list_del(&cpu_dai
->card_list
);
998 if (!cpu_dai
->codec
) {
999 snd_soc_dapm_free(&cpu_dai
->dapm
);
1000 module_put(cpu_dai
->dev
->driver
->owner
);
1005 static void soc_remove_link_components(struct snd_soc_card
*card
, int num
,
1008 struct snd_soc_pcm_runtime
*rtd
= &card
->rtd
[num
];
1009 struct snd_soc_dai
*cpu_dai
= rtd
->cpu_dai
;
1010 struct snd_soc_dai
*codec_dai
= rtd
->codec_dai
;
1011 struct snd_soc_platform
*platform
= rtd
->platform
;
1012 struct snd_soc_codec
*codec
;
1014 /* remove the platform */
1015 if (platform
&& platform
->probed
&&
1016 platform
->driver
->remove_order
== order
) {
1017 soc_remove_platform(platform
);
1020 /* remove the CODEC-side CODEC */
1022 codec
= codec_dai
->codec
;
1023 if (codec
&& codec
->probed
&&
1024 codec
->driver
->remove_order
== order
)
1025 soc_remove_codec(codec
);
1028 /* remove any CPU-side CODEC */
1030 codec
= cpu_dai
->codec
;
1031 if (codec
&& codec
->probed
&&
1032 codec
->driver
->remove_order
== order
)
1033 soc_remove_codec(codec
);
1037 static void soc_remove_dai_links(struct snd_soc_card
*card
)
1041 for (order
= SND_SOC_COMP_ORDER_FIRST
; order
<= SND_SOC_COMP_ORDER_LAST
;
1043 for (dai
= 0; dai
< card
->num_rtd
; dai
++)
1044 soc_remove_link_dais(card
, dai
, order
);
1047 for (order
= SND_SOC_COMP_ORDER_FIRST
; order
<= SND_SOC_COMP_ORDER_LAST
;
1049 for (dai
= 0; dai
< card
->num_rtd
; dai
++)
1050 soc_remove_link_components(card
, dai
, order
);
1056 static void soc_set_name_prefix(struct snd_soc_card
*card
,
1057 struct snd_soc_codec
*codec
)
1061 if (card
->codec_conf
== NULL
)
1064 for (i
= 0; i
< card
->num_configs
; i
++) {
1065 struct snd_soc_codec_conf
*map
= &card
->codec_conf
[i
];
1066 if (map
->dev_name
&& !strcmp(codec
->name
, map
->dev_name
)) {
1067 codec
->name_prefix
= map
->name_prefix
;
1073 static int soc_probe_codec(struct snd_soc_card
*card
,
1074 struct snd_soc_codec
*codec
)
1077 const struct snd_soc_codec_driver
*driver
= codec
->driver
;
1078 struct snd_soc_dai
*dai
;
1081 codec
->dapm
.card
= card
;
1082 soc_set_name_prefix(card
, codec
);
1084 if (!try_module_get(codec
->dev
->driver
->owner
))
1087 soc_init_codec_debugfs(codec
);
1089 if (driver
->dapm_widgets
)
1090 snd_soc_dapm_new_controls(&codec
->dapm
, driver
->dapm_widgets
,
1091 driver
->num_dapm_widgets
);
1093 /* Create DAPM widgets for each DAI stream */
1094 list_for_each_entry(dai
, &dai_list
, list
) {
1095 if (dai
->dev
!= codec
->dev
)
1098 snd_soc_dapm_new_dai_widgets(&codec
->dapm
, dai
);
1101 codec
->dapm
.idle_bias_off
= driver
->idle_bias_off
;
1103 if (driver
->probe
) {
1104 ret
= driver
->probe(codec
);
1107 "ASoC: failed to probe CODEC %d\n", ret
);
1110 WARN(codec
->dapm
.idle_bias_off
&&
1111 codec
->dapm
.bias_level
!= SND_SOC_BIAS_OFF
,
1112 "codec %s can not start from non-off bias"
1113 " with idle_bias_off==1\n", codec
->name
);
1116 /* If the driver didn't set I/O up try regmap */
1117 if (!codec
->write
&& dev_get_regmap(codec
->dev
, NULL
))
1118 snd_soc_codec_set_cache_io(codec
, 0, 0, SND_SOC_REGMAP
);
1120 if (driver
->controls
)
1121 snd_soc_add_codec_controls(codec
, driver
->controls
,
1122 driver
->num_controls
);
1123 if (driver
->dapm_routes
)
1124 snd_soc_dapm_add_routes(&codec
->dapm
, driver
->dapm_routes
,
1125 driver
->num_dapm_routes
);
1127 /* mark codec as probed and add to card codec list */
1129 list_add(&codec
->card_list
, &card
->codec_dev_list
);
1130 list_add(&codec
->dapm
.list
, &card
->dapm_list
);
1135 soc_cleanup_codec_debugfs(codec
);
1136 module_put(codec
->dev
->driver
->owner
);
1141 static int soc_probe_platform(struct snd_soc_card
*card
,
1142 struct snd_soc_platform
*platform
)
1145 const struct snd_soc_platform_driver
*driver
= platform
->driver
;
1146 struct snd_soc_dai
*dai
;
1148 platform
->card
= card
;
1149 platform
->dapm
.card
= card
;
1151 if (!try_module_get(platform
->dev
->driver
->owner
))
1154 soc_init_platform_debugfs(platform
);
1156 if (driver
->dapm_widgets
)
1157 snd_soc_dapm_new_controls(&platform
->dapm
,
1158 driver
->dapm_widgets
, driver
->num_dapm_widgets
);
1160 /* Create DAPM widgets for each DAI stream */
1161 list_for_each_entry(dai
, &dai_list
, list
) {
1162 if (dai
->dev
!= platform
->dev
)
1165 snd_soc_dapm_new_dai_widgets(&platform
->dapm
, dai
);
1168 platform
->dapm
.idle_bias_off
= 1;
1170 if (driver
->probe
) {
1171 ret
= driver
->probe(platform
);
1173 dev_err(platform
->dev
,
1174 "ASoC: failed to probe platform %d\n", ret
);
1179 if (driver
->controls
)
1180 snd_soc_add_platform_controls(platform
, driver
->controls
,
1181 driver
->num_controls
);
1182 if (driver
->dapm_routes
)
1183 snd_soc_dapm_add_routes(&platform
->dapm
, driver
->dapm_routes
,
1184 driver
->num_dapm_routes
);
1186 /* mark platform as probed and add to card platform list */
1187 platform
->probed
= 1;
1188 list_add(&platform
->card_list
, &card
->platform_dev_list
);
1189 list_add(&platform
->dapm
.list
, &card
->dapm_list
);
1194 soc_cleanup_platform_debugfs(platform
);
1195 module_put(platform
->dev
->driver
->owner
);
1200 static void rtd_release(struct device
*dev
)
1205 static int soc_post_component_init(struct snd_soc_card
*card
,
1206 struct snd_soc_codec
*codec
,
1207 int num
, int dailess
)
1209 struct snd_soc_dai_link
*dai_link
= NULL
;
1210 struct snd_soc_aux_dev
*aux_dev
= NULL
;
1211 struct snd_soc_pcm_runtime
*rtd
;
1212 const char *temp
, *name
;
1216 dai_link
= &card
->dai_link
[num
];
1217 rtd
= &card
->rtd
[num
];
1218 name
= dai_link
->name
;
1220 aux_dev
= &card
->aux_dev
[num
];
1221 rtd
= &card
->rtd_aux
[num
];
1222 name
= aux_dev
->name
;
1226 /* Make sure all DAPM widgets are instantiated */
1227 snd_soc_dapm_new_widgets(&codec
->dapm
);
1229 /* machine controls, routes and widgets are not prefixed */
1230 temp
= codec
->name_prefix
;
1231 codec
->name_prefix
= NULL
;
1233 /* do machine specific initialization */
1234 if (!dailess
&& dai_link
->init
)
1235 ret
= dai_link
->init(rtd
);
1236 else if (dailess
&& aux_dev
->init
)
1237 ret
= aux_dev
->init(&codec
->dapm
);
1239 dev_err(card
->dev
, "ASoC: failed to init %s: %d\n", name
, ret
);
1242 codec
->name_prefix
= temp
;
1244 /* register the rtd device */
1247 rtd
->dev
= kzalloc(sizeof(struct device
), GFP_KERNEL
);
1250 device_initialize(rtd
->dev
);
1251 rtd
->dev
->parent
= card
->dev
;
1252 rtd
->dev
->release
= rtd_release
;
1253 rtd
->dev
->init_name
= name
;
1254 dev_set_drvdata(rtd
->dev
, rtd
);
1255 mutex_init(&rtd
->pcm_mutex
);
1256 INIT_LIST_HEAD(&rtd
->dpcm
[SNDRV_PCM_STREAM_PLAYBACK
].be_clients
);
1257 INIT_LIST_HEAD(&rtd
->dpcm
[SNDRV_PCM_STREAM_CAPTURE
].be_clients
);
1258 INIT_LIST_HEAD(&rtd
->dpcm
[SNDRV_PCM_STREAM_PLAYBACK
].fe_clients
);
1259 INIT_LIST_HEAD(&rtd
->dpcm
[SNDRV_PCM_STREAM_CAPTURE
].fe_clients
);
1260 ret
= device_add(rtd
->dev
);
1262 /* calling put_device() here to free the rtd->dev */
1263 put_device(rtd
->dev
);
1265 "ASoC: failed to register runtime device: %d\n", ret
);
1268 rtd
->dev_registered
= 1;
1270 /* add DAPM sysfs entries for this codec */
1271 ret
= snd_soc_dapm_sys_add(rtd
->dev
);
1274 "ASoC: failed to add codec dapm sysfs entries: %d\n", ret
);
1276 /* add codec sysfs entries */
1277 ret
= device_create_file(rtd
->dev
, &dev_attr_codec_reg
);
1280 "ASoC: failed to add codec sysfs files: %d\n", ret
);
1282 #ifdef CONFIG_DEBUG_FS
1283 /* add DPCM sysfs entries */
1284 if (!dailess
&& !dai_link
->dynamic
)
1287 ret
= soc_dpcm_debugfs_add(rtd
);
1289 dev_err(rtd
->dev
, "ASoC: failed to add dpcm sysfs entries: %d\n", ret
);
1296 static int soc_probe_link_components(struct snd_soc_card
*card
, int num
,
1299 struct snd_soc_pcm_runtime
*rtd
= &card
->rtd
[num
];
1300 struct snd_soc_dai
*cpu_dai
= rtd
->cpu_dai
;
1301 struct snd_soc_dai
*codec_dai
= rtd
->codec_dai
;
1302 struct snd_soc_platform
*platform
= rtd
->platform
;
1305 /* probe the CPU-side component, if it is a CODEC */
1306 if (cpu_dai
->codec
&&
1307 !cpu_dai
->codec
->probed
&&
1308 cpu_dai
->codec
->driver
->probe_order
== order
) {
1309 ret
= soc_probe_codec(card
, cpu_dai
->codec
);
1314 /* probe the CODEC-side component */
1315 if (!codec_dai
->codec
->probed
&&
1316 codec_dai
->codec
->driver
->probe_order
== order
) {
1317 ret
= soc_probe_codec(card
, codec_dai
->codec
);
1322 /* probe the platform */
1323 if (!platform
->probed
&&
1324 platform
->driver
->probe_order
== order
) {
1325 ret
= soc_probe_platform(card
, platform
);
1333 static int soc_probe_link_dais(struct snd_soc_card
*card
, int num
, int order
)
1335 struct snd_soc_dai_link
*dai_link
= &card
->dai_link
[num
];
1336 struct snd_soc_pcm_runtime
*rtd
= &card
->rtd
[num
];
1337 struct snd_soc_codec
*codec
= rtd
->codec
;
1338 struct snd_soc_platform
*platform
= rtd
->platform
;
1339 struct snd_soc_dai
*codec_dai
= rtd
->codec_dai
;
1340 struct snd_soc_dai
*cpu_dai
= rtd
->cpu_dai
;
1341 struct snd_soc_dapm_widget
*play_w
, *capture_w
;
1344 dev_dbg(card
->dev
, "ASoC: probe %s dai link %d late %d\n",
1345 card
->name
, num
, order
);
1347 /* config components */
1348 cpu_dai
->platform
= platform
;
1349 codec_dai
->card
= card
;
1350 cpu_dai
->card
= card
;
1352 /* set default power off timeout */
1353 rtd
->pmdown_time
= pmdown_time
;
1355 /* probe the cpu_dai */
1356 if (!cpu_dai
->probed
&&
1357 cpu_dai
->driver
->probe_order
== order
) {
1358 if (!cpu_dai
->codec
) {
1359 cpu_dai
->dapm
.card
= card
;
1360 if (!try_module_get(cpu_dai
->dev
->driver
->owner
))
1363 list_add(&cpu_dai
->dapm
.list
, &card
->dapm_list
);
1364 snd_soc_dapm_new_dai_widgets(&cpu_dai
->dapm
, cpu_dai
);
1367 if (cpu_dai
->driver
->probe
) {
1368 ret
= cpu_dai
->driver
->probe(cpu_dai
);
1370 dev_err(cpu_dai
->dev
,
1371 "ASoC: failed to probe CPU DAI %s: %d\n",
1372 cpu_dai
->name
, ret
);
1373 module_put(cpu_dai
->dev
->driver
->owner
);
1377 cpu_dai
->probed
= 1;
1378 /* mark cpu_dai as probed and add to card dai list */
1379 list_add(&cpu_dai
->card_list
, &card
->dai_dev_list
);
1382 /* probe the CODEC DAI */
1383 if (!codec_dai
->probed
&& codec_dai
->driver
->probe_order
== order
) {
1384 if (codec_dai
->driver
->probe
) {
1385 ret
= codec_dai
->driver
->probe(codec_dai
);
1387 dev_err(codec_dai
->dev
,
1388 "ASoC: failed to probe CODEC DAI %s: %d\n",
1389 codec_dai
->name
, ret
);
1394 /* mark codec_dai as probed and add to card dai list */
1395 codec_dai
->probed
= 1;
1396 list_add(&codec_dai
->card_list
, &card
->dai_dev_list
);
1399 /* complete DAI probe during last probe */
1400 if (order
!= SND_SOC_COMP_ORDER_LAST
)
1403 ret
= soc_post_component_init(card
, codec
, num
, 0);
1407 ret
= device_create_file(rtd
->dev
, &dev_attr_pmdown_time
);
1409 dev_warn(rtd
->dev
, "ASoC: failed to add pmdown_time sysfs: %d\n",
1412 if (cpu_dai
->driver
->compress_dai
) {
1413 /*create compress_device"*/
1414 ret
= soc_new_compress(rtd
, num
);
1416 dev_err(card
->dev
, "ASoC: can't create compress %s\n",
1417 dai_link
->stream_name
);
1422 if (!dai_link
->params
) {
1423 /* create the pcm */
1424 ret
= soc_new_pcm(rtd
, num
);
1426 dev_err(card
->dev
, "ASoC: can't create pcm %s :%d\n",
1427 dai_link
->stream_name
, ret
);
1431 /* link the DAI widgets */
1432 play_w
= codec_dai
->playback_widget
;
1433 capture_w
= cpu_dai
->capture_widget
;
1434 if (play_w
&& capture_w
) {
1435 ret
= snd_soc_dapm_new_pcm(card
, dai_link
->params
,
1438 dev_err(card
->dev
, "ASoC: Can't link %s to %s: %d\n",
1439 play_w
->name
, capture_w
->name
, ret
);
1444 play_w
= cpu_dai
->playback_widget
;
1445 capture_w
= codec_dai
->capture_widget
;
1446 if (play_w
&& capture_w
) {
1447 ret
= snd_soc_dapm_new_pcm(card
, dai_link
->params
,
1450 dev_err(card
->dev
, "ASoC: Can't link %s to %s: %d\n",
1451 play_w
->name
, capture_w
->name
, ret
);
1458 /* add platform data for AC97 devices */
1459 if (rtd
->codec_dai
->driver
->ac97_control
)
1460 snd_ac97_dev_add_pdata(codec
->ac97
, rtd
->cpu_dai
->ac97_pdata
);
1465 #ifdef CONFIG_SND_SOC_AC97_BUS
1466 static int soc_register_ac97_dai_link(struct snd_soc_pcm_runtime
*rtd
)
1470 /* Only instantiate AC97 if not already done by the adaptor
1471 * for the generic AC97 subsystem.
1473 if (rtd
->codec_dai
->driver
->ac97_control
&& !rtd
->codec
->ac97_registered
) {
1475 * It is possible that the AC97 device is already registered to
1476 * the device subsystem. This happens when the device is created
1477 * via snd_ac97_mixer(). Currently only SoC codec that does so
1478 * is the generic AC97 glue but others migh emerge.
1480 * In those cases we don't try to register the device again.
1482 if (!rtd
->codec
->ac97_created
)
1485 ret
= soc_ac97_dev_register(rtd
->codec
);
1487 dev_err(rtd
->codec
->dev
,
1488 "ASoC: AC97 device register failed: %d\n", ret
);
1492 rtd
->codec
->ac97_registered
= 1;
1497 static void soc_unregister_ac97_dai_link(struct snd_soc_codec
*codec
)
1499 if (codec
->ac97_registered
) {
1500 soc_ac97_dev_unregister(codec
);
1501 codec
->ac97_registered
= 0;
1506 static int soc_check_aux_dev(struct snd_soc_card
*card
, int num
)
1508 struct snd_soc_aux_dev
*aux_dev
= &card
->aux_dev
[num
];
1509 struct snd_soc_codec
*codec
;
1511 /* find CODEC from registered CODECs*/
1512 list_for_each_entry(codec
, &codec_list
, list
) {
1513 if (!strcmp(codec
->name
, aux_dev
->codec_name
))
1517 dev_err(card
->dev
, "ASoC: %s not registered\n", aux_dev
->codec_name
);
1519 return -EPROBE_DEFER
;
1522 static int soc_probe_aux_dev(struct snd_soc_card
*card
, int num
)
1524 struct snd_soc_aux_dev
*aux_dev
= &card
->aux_dev
[num
];
1525 struct snd_soc_codec
*codec
;
1528 /* find CODEC from registered CODECs*/
1529 list_for_each_entry(codec
, &codec_list
, list
) {
1530 if (!strcmp(codec
->name
, aux_dev
->codec_name
)) {
1531 if (codec
->probed
) {
1533 "ASoC: codec already probed");
1540 /* codec not found */
1541 dev_err(card
->dev
, "ASoC: codec %s not found", aux_dev
->codec_name
);
1542 return -EPROBE_DEFER
;
1545 ret
= soc_probe_codec(card
, codec
);
1549 ret
= soc_post_component_init(card
, codec
, num
, 1);
1555 static void soc_remove_aux_dev(struct snd_soc_card
*card
, int num
)
1557 struct snd_soc_pcm_runtime
*rtd
= &card
->rtd_aux
[num
];
1558 struct snd_soc_codec
*codec
= rtd
->codec
;
1560 /* unregister the rtd device */
1561 if (rtd
->dev_registered
) {
1562 device_remove_file(rtd
->dev
, &dev_attr_codec_reg
);
1563 device_unregister(rtd
->dev
);
1564 rtd
->dev_registered
= 0;
1567 if (codec
&& codec
->probed
)
1568 soc_remove_codec(codec
);
1571 static int snd_soc_init_codec_cache(struct snd_soc_codec
*codec
,
1572 enum snd_soc_compress_type compress_type
)
1576 if (codec
->cache_init
)
1579 /* override the compress_type if necessary */
1580 if (compress_type
&& codec
->compress_type
!= compress_type
)
1581 codec
->compress_type
= compress_type
;
1582 ret
= snd_soc_cache_init(codec
);
1584 dev_err(codec
->dev
, "ASoC: Failed to set cache compression"
1585 " type: %d\n", ret
);
1588 codec
->cache_init
= 1;
1592 static int snd_soc_instantiate_card(struct snd_soc_card
*card
)
1594 struct snd_soc_codec
*codec
;
1595 struct snd_soc_codec_conf
*codec_conf
;
1596 enum snd_soc_compress_type compress_type
;
1597 struct snd_soc_dai_link
*dai_link
;
1598 int ret
, i
, order
, dai_fmt
;
1600 mutex_lock_nested(&card
->mutex
, SND_SOC_CARD_CLASS_INIT
);
1603 for (i
= 0; i
< card
->num_links
; i
++) {
1604 ret
= soc_bind_dai_link(card
, i
);
1609 /* check aux_devs too */
1610 for (i
= 0; i
< card
->num_aux_devs
; i
++) {
1611 ret
= soc_check_aux_dev(card
, i
);
1616 /* initialize the register cache for each available codec */
1617 list_for_each_entry(codec
, &codec_list
, list
) {
1618 if (codec
->cache_init
)
1620 /* by default we don't override the compress_type */
1622 /* check to see if we need to override the compress_type */
1623 for (i
= 0; i
< card
->num_configs
; ++i
) {
1624 codec_conf
= &card
->codec_conf
[i
];
1625 if (!strcmp(codec
->name
, codec_conf
->dev_name
)) {
1626 compress_type
= codec_conf
->compress_type
;
1627 if (compress_type
&& compress_type
1628 != codec
->compress_type
)
1632 ret
= snd_soc_init_codec_cache(codec
, compress_type
);
1637 /* card bind complete so register a sound card */
1638 ret
= snd_card_create(SNDRV_DEFAULT_IDX1
, SNDRV_DEFAULT_STR1
,
1639 card
->owner
, 0, &card
->snd_card
);
1641 dev_err(card
->dev
, "ASoC: can't create sound card for"
1642 " card %s: %d\n", card
->name
, ret
);
1645 card
->snd_card
->dev
= card
->dev
;
1647 card
->dapm
.bias_level
= SND_SOC_BIAS_OFF
;
1648 card
->dapm
.dev
= card
->dev
;
1649 card
->dapm
.card
= card
;
1650 list_add(&card
->dapm
.list
, &card
->dapm_list
);
1652 #ifdef CONFIG_DEBUG_FS
1653 snd_soc_dapm_debugfs_init(&card
->dapm
, card
->debugfs_card_root
);
1656 #ifdef CONFIG_PM_SLEEP
1657 /* deferred resume work */
1658 INIT_WORK(&card
->deferred_resume_work
, soc_resume_deferred
);
1661 if (card
->dapm_widgets
)
1662 snd_soc_dapm_new_controls(&card
->dapm
, card
->dapm_widgets
,
1663 card
->num_dapm_widgets
);
1665 /* initialise the sound card only once */
1667 ret
= card
->probe(card
);
1669 goto card_probe_error
;
1672 /* probe all components used by DAI links on this card */
1673 for (order
= SND_SOC_COMP_ORDER_FIRST
; order
<= SND_SOC_COMP_ORDER_LAST
;
1675 for (i
= 0; i
< card
->num_links
; i
++) {
1676 ret
= soc_probe_link_components(card
, i
, order
);
1679 "ASoC: failed to instantiate card %d\n",
1686 /* probe all DAI links on this card */
1687 for (order
= SND_SOC_COMP_ORDER_FIRST
; order
<= SND_SOC_COMP_ORDER_LAST
;
1689 for (i
= 0; i
< card
->num_links
; i
++) {
1690 ret
= soc_probe_link_dais(card
, i
, order
);
1693 "ASoC: failed to instantiate card %d\n",
1700 for (i
= 0; i
< card
->num_aux_devs
; i
++) {
1701 ret
= soc_probe_aux_dev(card
, i
);
1704 "ASoC: failed to add auxiliary devices %d\n",
1706 goto probe_aux_dev_err
;
1710 snd_soc_dapm_link_dai_widgets(card
);
1713 snd_soc_add_card_controls(card
, card
->controls
, card
->num_controls
);
1715 if (card
->dapm_routes
)
1716 snd_soc_dapm_add_routes(&card
->dapm
, card
->dapm_routes
,
1717 card
->num_dapm_routes
);
1719 snd_soc_dapm_new_widgets(&card
->dapm
);
1721 for (i
= 0; i
< card
->num_links
; i
++) {
1722 dai_link
= &card
->dai_link
[i
];
1723 dai_fmt
= dai_link
->dai_fmt
;
1726 ret
= snd_soc_dai_set_fmt(card
->rtd
[i
].codec_dai
,
1728 if (ret
!= 0 && ret
!= -ENOTSUPP
)
1729 dev_warn(card
->rtd
[i
].codec_dai
->dev
,
1730 "ASoC: Failed to set DAI format: %d\n",
1734 /* If this is a regular CPU link there will be a platform */
1736 (dai_link
->platform_name
|| dai_link
->platform_of_node
)) {
1737 ret
= snd_soc_dai_set_fmt(card
->rtd
[i
].cpu_dai
,
1739 if (ret
!= 0 && ret
!= -ENOTSUPP
)
1740 dev_warn(card
->rtd
[i
].cpu_dai
->dev
,
1741 "ASoC: Failed to set DAI format: %d\n",
1743 } else if (dai_fmt
) {
1744 /* Flip the polarity for the "CPU" end */
1745 dai_fmt
&= ~SND_SOC_DAIFMT_MASTER_MASK
;
1746 switch (dai_link
->dai_fmt
&
1747 SND_SOC_DAIFMT_MASTER_MASK
) {
1748 case SND_SOC_DAIFMT_CBM_CFM
:
1749 dai_fmt
|= SND_SOC_DAIFMT_CBS_CFS
;
1751 case SND_SOC_DAIFMT_CBM_CFS
:
1752 dai_fmt
|= SND_SOC_DAIFMT_CBS_CFM
;
1754 case SND_SOC_DAIFMT_CBS_CFM
:
1755 dai_fmt
|= SND_SOC_DAIFMT_CBM_CFS
;
1757 case SND_SOC_DAIFMT_CBS_CFS
:
1758 dai_fmt
|= SND_SOC_DAIFMT_CBM_CFM
;
1762 ret
= snd_soc_dai_set_fmt(card
->rtd
[i
].cpu_dai
,
1764 if (ret
!= 0 && ret
!= -ENOTSUPP
)
1765 dev_warn(card
->rtd
[i
].cpu_dai
->dev
,
1766 "ASoC: Failed to set DAI format: %d\n",
1771 snprintf(card
->snd_card
->shortname
, sizeof(card
->snd_card
->shortname
),
1773 snprintf(card
->snd_card
->longname
, sizeof(card
->snd_card
->longname
),
1774 "%s", card
->long_name
? card
->long_name
: card
->name
);
1775 snprintf(card
->snd_card
->driver
, sizeof(card
->snd_card
->driver
),
1776 "%s", card
->driver_name
? card
->driver_name
: card
->name
);
1777 for (i
= 0; i
< ARRAY_SIZE(card
->snd_card
->driver
); i
++) {
1778 switch (card
->snd_card
->driver
[i
]) {
1784 if (!isalnum(card
->snd_card
->driver
[i
]))
1785 card
->snd_card
->driver
[i
] = '_';
1790 if (card
->late_probe
) {
1791 ret
= card
->late_probe(card
);
1793 dev_err(card
->dev
, "ASoC: %s late_probe() failed: %d\n",
1795 goto probe_aux_dev_err
;
1799 snd_soc_dapm_new_widgets(&card
->dapm
);
1801 if (card
->fully_routed
)
1802 list_for_each_entry(codec
, &card
->codec_dev_list
, card_list
)
1803 snd_soc_dapm_auto_nc_codec_pins(codec
);
1805 ret
= snd_card_register(card
->snd_card
);
1807 dev_err(card
->dev
, "ASoC: failed to register soundcard %d\n",
1809 goto probe_aux_dev_err
;
1812 #ifdef CONFIG_SND_SOC_AC97_BUS
1813 /* register any AC97 codecs */
1814 for (i
= 0; i
< card
->num_rtd
; i
++) {
1815 ret
= soc_register_ac97_dai_link(&card
->rtd
[i
]);
1817 dev_err(card
->dev
, "ASoC: failed to register AC97:"
1820 soc_unregister_ac97_dai_link(card
->rtd
[i
].codec
);
1821 goto probe_aux_dev_err
;
1826 card
->instantiated
= 1;
1827 snd_soc_dapm_sync(&card
->dapm
);
1828 mutex_unlock(&card
->mutex
);
1833 for (i
= 0; i
< card
->num_aux_devs
; i
++)
1834 soc_remove_aux_dev(card
, i
);
1837 soc_remove_dai_links(card
);
1843 snd_card_free(card
->snd_card
);
1846 mutex_unlock(&card
->mutex
);
1851 /* probes a new socdev */
1852 static int soc_probe(struct platform_device
*pdev
)
1854 struct snd_soc_card
*card
= platform_get_drvdata(pdev
);
1857 * no card, so machine driver should be registering card
1858 * we should not be here in that case so ret error
1863 dev_warn(&pdev
->dev
,
1864 "ASoC: machine %s should use snd_soc_register_card()\n",
1867 /* Bodge while we unpick instantiation */
1868 card
->dev
= &pdev
->dev
;
1870 return snd_soc_register_card(card
);
1873 static int soc_cleanup_card_resources(struct snd_soc_card
*card
)
1877 /* make sure any delayed work runs */
1878 for (i
= 0; i
< card
->num_rtd
; i
++) {
1879 struct snd_soc_pcm_runtime
*rtd
= &card
->rtd
[i
];
1880 flush_delayed_work(&rtd
->delayed_work
);
1883 /* remove auxiliary devices */
1884 for (i
= 0; i
< card
->num_aux_devs
; i
++)
1885 soc_remove_aux_dev(card
, i
);
1887 /* remove and free each DAI */
1888 soc_remove_dai_links(card
);
1890 soc_cleanup_card_debugfs(card
);
1892 /* remove the card */
1896 snd_soc_dapm_free(&card
->dapm
);
1898 snd_card_free(card
->snd_card
);
1903 /* removes a socdev */
1904 static int soc_remove(struct platform_device
*pdev
)
1906 struct snd_soc_card
*card
= platform_get_drvdata(pdev
);
1908 snd_soc_unregister_card(card
);
1912 int snd_soc_poweroff(struct device
*dev
)
1914 struct snd_soc_card
*card
= dev_get_drvdata(dev
);
1917 if (!card
->instantiated
)
1920 /* Flush out pmdown_time work - we actually do want to run it
1921 * now, we're shutting down so no imminent restart. */
1922 for (i
= 0; i
< card
->num_rtd
; i
++) {
1923 struct snd_soc_pcm_runtime
*rtd
= &card
->rtd
[i
];
1924 flush_delayed_work(&rtd
->delayed_work
);
1927 snd_soc_dapm_shutdown(card
);
1931 EXPORT_SYMBOL_GPL(snd_soc_poweroff
);
1933 const struct dev_pm_ops snd_soc_pm_ops
= {
1934 .suspend
= snd_soc_suspend
,
1935 .resume
= snd_soc_resume
,
1936 .freeze
= snd_soc_suspend
,
1937 .thaw
= snd_soc_resume
,
1938 .poweroff
= snd_soc_poweroff
,
1939 .restore
= snd_soc_resume
,
1941 EXPORT_SYMBOL_GPL(snd_soc_pm_ops
);
1943 /* ASoC platform driver */
1944 static struct platform_driver soc_driver
= {
1946 .name
= "soc-audio",
1947 .owner
= THIS_MODULE
,
1948 .pm
= &snd_soc_pm_ops
,
1951 .remove
= soc_remove
,
1955 * snd_soc_codec_volatile_register: Report if a register is volatile.
1957 * @codec: CODEC to query.
1958 * @reg: Register to query.
1960 * Boolean function indiciating if a CODEC register is volatile.
1962 int snd_soc_codec_volatile_register(struct snd_soc_codec
*codec
,
1965 if (codec
->volatile_register
)
1966 return codec
->volatile_register(codec
, reg
);
1970 EXPORT_SYMBOL_GPL(snd_soc_codec_volatile_register
);
1973 * snd_soc_codec_readable_register: Report if a register is readable.
1975 * @codec: CODEC to query.
1976 * @reg: Register to query.
1978 * Boolean function indicating if a CODEC register is readable.
1980 int snd_soc_codec_readable_register(struct snd_soc_codec
*codec
,
1983 if (codec
->readable_register
)
1984 return codec
->readable_register(codec
, reg
);
1988 EXPORT_SYMBOL_GPL(snd_soc_codec_readable_register
);
1991 * snd_soc_codec_writable_register: Report if a register is writable.
1993 * @codec: CODEC to query.
1994 * @reg: Register to query.
1996 * Boolean function indicating if a CODEC register is writable.
1998 int snd_soc_codec_writable_register(struct snd_soc_codec
*codec
,
2001 if (codec
->writable_register
)
2002 return codec
->writable_register(codec
, reg
);
2006 EXPORT_SYMBOL_GPL(snd_soc_codec_writable_register
);
2008 int snd_soc_platform_read(struct snd_soc_platform
*platform
,
2013 if (!platform
->driver
->read
) {
2014 dev_err(platform
->dev
, "ASoC: platform has no read back\n");
2018 ret
= platform
->driver
->read(platform
, reg
);
2019 dev_dbg(platform
->dev
, "read %x => %x\n", reg
, ret
);
2020 trace_snd_soc_preg_read(platform
, reg
, ret
);
2024 EXPORT_SYMBOL_GPL(snd_soc_platform_read
);
2026 int snd_soc_platform_write(struct snd_soc_platform
*platform
,
2027 unsigned int reg
, unsigned int val
)
2029 if (!platform
->driver
->write
) {
2030 dev_err(platform
->dev
, "ASoC: platform has no write back\n");
2034 dev_dbg(platform
->dev
, "write %x = %x\n", reg
, val
);
2035 trace_snd_soc_preg_write(platform
, reg
, val
);
2036 return platform
->driver
->write(platform
, reg
, val
);
2038 EXPORT_SYMBOL_GPL(snd_soc_platform_write
);
2041 * snd_soc_new_ac97_codec - initailise AC97 device
2042 * @codec: audio codec
2043 * @ops: AC97 bus operations
2044 * @num: AC97 codec number
2046 * Initialises AC97 codec resources for use by ad-hoc devices only.
2048 int snd_soc_new_ac97_codec(struct snd_soc_codec
*codec
,
2049 struct snd_ac97_bus_ops
*ops
, int num
)
2051 mutex_lock(&codec
->mutex
);
2053 codec
->ac97
= kzalloc(sizeof(struct snd_ac97
), GFP_KERNEL
);
2054 if (codec
->ac97
== NULL
) {
2055 mutex_unlock(&codec
->mutex
);
2059 codec
->ac97
->bus
= kzalloc(sizeof(struct snd_ac97_bus
), GFP_KERNEL
);
2060 if (codec
->ac97
->bus
== NULL
) {
2063 mutex_unlock(&codec
->mutex
);
2067 codec
->ac97
->bus
->ops
= ops
;
2068 codec
->ac97
->num
= num
;
2071 * Mark the AC97 device to be created by us. This way we ensure that the
2072 * device will be registered with the device subsystem later on.
2074 codec
->ac97_created
= 1;
2076 mutex_unlock(&codec
->mutex
);
2079 EXPORT_SYMBOL_GPL(snd_soc_new_ac97_codec
);
2082 * snd_soc_free_ac97_codec - free AC97 codec device
2083 * @codec: audio codec
2085 * Frees AC97 codec device resources.
2087 void snd_soc_free_ac97_codec(struct snd_soc_codec
*codec
)
2089 mutex_lock(&codec
->mutex
);
2090 #ifdef CONFIG_SND_SOC_AC97_BUS
2091 soc_unregister_ac97_dai_link(codec
);
2093 kfree(codec
->ac97
->bus
);
2096 codec
->ac97_created
= 0;
2097 mutex_unlock(&codec
->mutex
);
2099 EXPORT_SYMBOL_GPL(snd_soc_free_ac97_codec
);
2101 unsigned int snd_soc_read(struct snd_soc_codec
*codec
, unsigned int reg
)
2105 ret
= codec
->read(codec
, reg
);
2106 dev_dbg(codec
->dev
, "read %x => %x\n", reg
, ret
);
2107 trace_snd_soc_reg_read(codec
, reg
, ret
);
2111 EXPORT_SYMBOL_GPL(snd_soc_read
);
2113 unsigned int snd_soc_write(struct snd_soc_codec
*codec
,
2114 unsigned int reg
, unsigned int val
)
2116 dev_dbg(codec
->dev
, "write %x = %x\n", reg
, val
);
2117 trace_snd_soc_reg_write(codec
, reg
, val
);
2118 return codec
->write(codec
, reg
, val
);
2120 EXPORT_SYMBOL_GPL(snd_soc_write
);
2122 unsigned int snd_soc_bulk_write_raw(struct snd_soc_codec
*codec
,
2123 unsigned int reg
, const void *data
, size_t len
)
2125 return codec
->bulk_write_raw(codec
, reg
, data
, len
);
2127 EXPORT_SYMBOL_GPL(snd_soc_bulk_write_raw
);
2130 * snd_soc_update_bits - update codec register bits
2131 * @codec: audio codec
2132 * @reg: codec register
2133 * @mask: register mask
2136 * Writes new register value.
2138 * Returns 1 for change, 0 for no change, or negative error code.
2140 int snd_soc_update_bits(struct snd_soc_codec
*codec
, unsigned short reg
,
2141 unsigned int mask
, unsigned int value
)
2144 unsigned int old
, new;
2147 if (codec
->using_regmap
) {
2148 ret
= regmap_update_bits_check(codec
->control_data
, reg
,
2149 mask
, value
, &change
);
2151 ret
= snd_soc_read(codec
, reg
);
2156 new = (old
& ~mask
) | (value
& mask
);
2157 change
= old
!= new;
2159 ret
= snd_soc_write(codec
, reg
, new);
2167 EXPORT_SYMBOL_GPL(snd_soc_update_bits
);
2170 * snd_soc_update_bits_locked - update codec register bits
2171 * @codec: audio codec
2172 * @reg: codec register
2173 * @mask: register mask
2176 * Writes new register value, and takes the codec mutex.
2178 * Returns 1 for change else 0.
2180 int snd_soc_update_bits_locked(struct snd_soc_codec
*codec
,
2181 unsigned short reg
, unsigned int mask
,
2186 mutex_lock(&codec
->mutex
);
2187 change
= snd_soc_update_bits(codec
, reg
, mask
, value
);
2188 mutex_unlock(&codec
->mutex
);
2192 EXPORT_SYMBOL_GPL(snd_soc_update_bits_locked
);
2195 * snd_soc_test_bits - test register for change
2196 * @codec: audio codec
2197 * @reg: codec register
2198 * @mask: register mask
2201 * Tests a register with a new value and checks if the new value is
2202 * different from the old value.
2204 * Returns 1 for change else 0.
2206 int snd_soc_test_bits(struct snd_soc_codec
*codec
, unsigned short reg
,
2207 unsigned int mask
, unsigned int value
)
2210 unsigned int old
, new;
2212 old
= snd_soc_read(codec
, reg
);
2213 new = (old
& ~mask
) | value
;
2214 change
= old
!= new;
2218 EXPORT_SYMBOL_GPL(snd_soc_test_bits
);
2221 * snd_soc_set_runtime_hwparams - set the runtime hardware parameters
2222 * @substream: the pcm substream
2223 * @hw: the hardware parameters
2225 * Sets the substream runtime hardware parameters.
2227 int snd_soc_set_runtime_hwparams(struct snd_pcm_substream
*substream
,
2228 const struct snd_pcm_hardware
*hw
)
2230 struct snd_pcm_runtime
*runtime
= substream
->runtime
;
2231 runtime
->hw
.info
= hw
->info
;
2232 runtime
->hw
.formats
= hw
->formats
;
2233 runtime
->hw
.period_bytes_min
= hw
->period_bytes_min
;
2234 runtime
->hw
.period_bytes_max
= hw
->period_bytes_max
;
2235 runtime
->hw
.periods_min
= hw
->periods_min
;
2236 runtime
->hw
.periods_max
= hw
->periods_max
;
2237 runtime
->hw
.buffer_bytes_max
= hw
->buffer_bytes_max
;
2238 runtime
->hw
.fifo_size
= hw
->fifo_size
;
2241 EXPORT_SYMBOL_GPL(snd_soc_set_runtime_hwparams
);
2244 * snd_soc_cnew - create new control
2245 * @_template: control template
2246 * @data: control private data
2247 * @long_name: control long name
2248 * @prefix: control name prefix
2250 * Create a new mixer control from a template control.
2252 * Returns 0 for success, else error.
2254 struct snd_kcontrol
*snd_soc_cnew(const struct snd_kcontrol_new
*_template
,
2255 void *data
, const char *long_name
,
2258 struct snd_kcontrol_new
template;
2259 struct snd_kcontrol
*kcontrol
;
2263 memcpy(&template, _template
, sizeof(template));
2267 long_name
= template.name
;
2270 name_len
= strlen(long_name
) + strlen(prefix
) + 2;
2271 name
= kmalloc(name_len
, GFP_KERNEL
);
2275 snprintf(name
, name_len
, "%s %s", prefix
, long_name
);
2277 template.name
= name
;
2279 template.name
= long_name
;
2282 kcontrol
= snd_ctl_new1(&template, data
);
2288 EXPORT_SYMBOL_GPL(snd_soc_cnew
);
2290 static int snd_soc_add_controls(struct snd_card
*card
, struct device
*dev
,
2291 const struct snd_kcontrol_new
*controls
, int num_controls
,
2292 const char *prefix
, void *data
)
2296 for (i
= 0; i
< num_controls
; i
++) {
2297 const struct snd_kcontrol_new
*control
= &controls
[i
];
2298 err
= snd_ctl_add(card
, snd_soc_cnew(control
, data
,
2299 control
->name
, prefix
));
2301 dev_err(dev
, "ASoC: Failed to add %s: %d\n",
2302 control
->name
, err
);
2311 * snd_soc_add_codec_controls - add an array of controls to a codec.
2312 * Convenience function to add a list of controls. Many codecs were
2313 * duplicating this code.
2315 * @codec: codec to add controls to
2316 * @controls: array of controls to add
2317 * @num_controls: number of elements in the array
2319 * Return 0 for success, else error.
2321 int snd_soc_add_codec_controls(struct snd_soc_codec
*codec
,
2322 const struct snd_kcontrol_new
*controls
, int num_controls
)
2324 struct snd_card
*card
= codec
->card
->snd_card
;
2326 return snd_soc_add_controls(card
, codec
->dev
, controls
, num_controls
,
2327 codec
->name_prefix
, codec
);
2329 EXPORT_SYMBOL_GPL(snd_soc_add_codec_controls
);
2332 * snd_soc_add_platform_controls - add an array of controls to a platform.
2333 * Convenience function to add a list of controls.
2335 * @platform: platform to add controls to
2336 * @controls: array of controls to add
2337 * @num_controls: number of elements in the array
2339 * Return 0 for success, else error.
2341 int snd_soc_add_platform_controls(struct snd_soc_platform
*platform
,
2342 const struct snd_kcontrol_new
*controls
, int num_controls
)
2344 struct snd_card
*card
= platform
->card
->snd_card
;
2346 return snd_soc_add_controls(card
, platform
->dev
, controls
, num_controls
,
2349 EXPORT_SYMBOL_GPL(snd_soc_add_platform_controls
);
2352 * snd_soc_add_card_controls - add an array of controls to a SoC card.
2353 * Convenience function to add a list of controls.
2355 * @soc_card: SoC card to add controls to
2356 * @controls: array of controls to add
2357 * @num_controls: number of elements in the array
2359 * Return 0 for success, else error.
2361 int snd_soc_add_card_controls(struct snd_soc_card
*soc_card
,
2362 const struct snd_kcontrol_new
*controls
, int num_controls
)
2364 struct snd_card
*card
= soc_card
->snd_card
;
2366 return snd_soc_add_controls(card
, soc_card
->dev
, controls
, num_controls
,
2369 EXPORT_SYMBOL_GPL(snd_soc_add_card_controls
);
2372 * snd_soc_add_dai_controls - add an array of controls to a DAI.
2373 * Convienience function to add a list of controls.
2375 * @dai: DAI to add controls to
2376 * @controls: array of controls to add
2377 * @num_controls: number of elements in the array
2379 * Return 0 for success, else error.
2381 int snd_soc_add_dai_controls(struct snd_soc_dai
*dai
,
2382 const struct snd_kcontrol_new
*controls
, int num_controls
)
2384 struct snd_card
*card
= dai
->card
->snd_card
;
2386 return snd_soc_add_controls(card
, dai
->dev
, controls
, num_controls
,
2389 EXPORT_SYMBOL_GPL(snd_soc_add_dai_controls
);
2392 * snd_soc_info_enum_double - enumerated double mixer info callback
2393 * @kcontrol: mixer control
2394 * @uinfo: control element information
2396 * Callback to provide information about a double enumerated
2399 * Returns 0 for success.
2401 int snd_soc_info_enum_double(struct snd_kcontrol
*kcontrol
,
2402 struct snd_ctl_elem_info
*uinfo
)
2404 struct soc_enum
*e
= (struct soc_enum
*)kcontrol
->private_value
;
2406 uinfo
->type
= SNDRV_CTL_ELEM_TYPE_ENUMERATED
;
2407 uinfo
->count
= e
->shift_l
== e
->shift_r
? 1 : 2;
2408 uinfo
->value
.enumerated
.items
= e
->max
;
2410 if (uinfo
->value
.enumerated
.item
> e
->max
- 1)
2411 uinfo
->value
.enumerated
.item
= e
->max
- 1;
2412 strcpy(uinfo
->value
.enumerated
.name
,
2413 e
->texts
[uinfo
->value
.enumerated
.item
]);
2416 EXPORT_SYMBOL_GPL(snd_soc_info_enum_double
);
2419 * snd_soc_get_enum_double - enumerated double mixer get callback
2420 * @kcontrol: mixer control
2421 * @ucontrol: control element information
2423 * Callback to get the value of a double enumerated mixer.
2425 * Returns 0 for success.
2427 int snd_soc_get_enum_double(struct snd_kcontrol
*kcontrol
,
2428 struct snd_ctl_elem_value
*ucontrol
)
2430 struct snd_soc_codec
*codec
= snd_kcontrol_chip(kcontrol
);
2431 struct soc_enum
*e
= (struct soc_enum
*)kcontrol
->private_value
;
2434 val
= snd_soc_read(codec
, e
->reg
);
2435 ucontrol
->value
.enumerated
.item
[0]
2436 = (val
>> e
->shift_l
) & e
->mask
;
2437 if (e
->shift_l
!= e
->shift_r
)
2438 ucontrol
->value
.enumerated
.item
[1] =
2439 (val
>> e
->shift_r
) & e
->mask
;
2443 EXPORT_SYMBOL_GPL(snd_soc_get_enum_double
);
2446 * snd_soc_put_enum_double - enumerated double mixer put callback
2447 * @kcontrol: mixer control
2448 * @ucontrol: control element information
2450 * Callback to set the value of a double enumerated mixer.
2452 * Returns 0 for success.
2454 int snd_soc_put_enum_double(struct snd_kcontrol
*kcontrol
,
2455 struct snd_ctl_elem_value
*ucontrol
)
2457 struct snd_soc_codec
*codec
= snd_kcontrol_chip(kcontrol
);
2458 struct soc_enum
*e
= (struct soc_enum
*)kcontrol
->private_value
;
2462 if (ucontrol
->value
.enumerated
.item
[0] > e
->max
- 1)
2464 val
= ucontrol
->value
.enumerated
.item
[0] << e
->shift_l
;
2465 mask
= e
->mask
<< e
->shift_l
;
2466 if (e
->shift_l
!= e
->shift_r
) {
2467 if (ucontrol
->value
.enumerated
.item
[1] > e
->max
- 1)
2469 val
|= ucontrol
->value
.enumerated
.item
[1] << e
->shift_r
;
2470 mask
|= e
->mask
<< e
->shift_r
;
2473 return snd_soc_update_bits_locked(codec
, e
->reg
, mask
, val
);
2475 EXPORT_SYMBOL_GPL(snd_soc_put_enum_double
);
2478 * snd_soc_get_value_enum_double - semi enumerated double mixer get callback
2479 * @kcontrol: mixer control
2480 * @ucontrol: control element information
2482 * Callback to get the value of a double semi enumerated mixer.
2484 * Semi enumerated mixer: the enumerated items are referred as values. Can be
2485 * used for handling bitfield coded enumeration for example.
2487 * Returns 0 for success.
2489 int snd_soc_get_value_enum_double(struct snd_kcontrol
*kcontrol
,
2490 struct snd_ctl_elem_value
*ucontrol
)
2492 struct snd_soc_codec
*codec
= snd_kcontrol_chip(kcontrol
);
2493 struct soc_enum
*e
= (struct soc_enum
*)kcontrol
->private_value
;
2494 unsigned int reg_val
, val
, mux
;
2496 reg_val
= snd_soc_read(codec
, e
->reg
);
2497 val
= (reg_val
>> e
->shift_l
) & e
->mask
;
2498 for (mux
= 0; mux
< e
->max
; mux
++) {
2499 if (val
== e
->values
[mux
])
2502 ucontrol
->value
.enumerated
.item
[0] = mux
;
2503 if (e
->shift_l
!= e
->shift_r
) {
2504 val
= (reg_val
>> e
->shift_r
) & e
->mask
;
2505 for (mux
= 0; mux
< e
->max
; mux
++) {
2506 if (val
== e
->values
[mux
])
2509 ucontrol
->value
.enumerated
.item
[1] = mux
;
2514 EXPORT_SYMBOL_GPL(snd_soc_get_value_enum_double
);
2517 * snd_soc_put_value_enum_double - semi enumerated double mixer put callback
2518 * @kcontrol: mixer control
2519 * @ucontrol: control element information
2521 * Callback to set the value of a double semi enumerated mixer.
2523 * Semi enumerated mixer: the enumerated items are referred as values. Can be
2524 * used for handling bitfield coded enumeration for example.
2526 * Returns 0 for success.
2528 int snd_soc_put_value_enum_double(struct snd_kcontrol
*kcontrol
,
2529 struct snd_ctl_elem_value
*ucontrol
)
2531 struct snd_soc_codec
*codec
= snd_kcontrol_chip(kcontrol
);
2532 struct soc_enum
*e
= (struct soc_enum
*)kcontrol
->private_value
;
2536 if (ucontrol
->value
.enumerated
.item
[0] > e
->max
- 1)
2538 val
= e
->values
[ucontrol
->value
.enumerated
.item
[0]] << e
->shift_l
;
2539 mask
= e
->mask
<< e
->shift_l
;
2540 if (e
->shift_l
!= e
->shift_r
) {
2541 if (ucontrol
->value
.enumerated
.item
[1] > e
->max
- 1)
2543 val
|= e
->values
[ucontrol
->value
.enumerated
.item
[1]] << e
->shift_r
;
2544 mask
|= e
->mask
<< e
->shift_r
;
2547 return snd_soc_update_bits_locked(codec
, e
->reg
, mask
, val
);
2549 EXPORT_SYMBOL_GPL(snd_soc_put_value_enum_double
);
2552 * snd_soc_info_enum_ext - external enumerated single mixer info callback
2553 * @kcontrol: mixer control
2554 * @uinfo: control element information
2556 * Callback to provide information about an external enumerated
2559 * Returns 0 for success.
2561 int snd_soc_info_enum_ext(struct snd_kcontrol
*kcontrol
,
2562 struct snd_ctl_elem_info
*uinfo
)
2564 struct soc_enum
*e
= (struct soc_enum
*)kcontrol
->private_value
;
2566 uinfo
->type
= SNDRV_CTL_ELEM_TYPE_ENUMERATED
;
2568 uinfo
->value
.enumerated
.items
= e
->max
;
2570 if (uinfo
->value
.enumerated
.item
> e
->max
- 1)
2571 uinfo
->value
.enumerated
.item
= e
->max
- 1;
2572 strcpy(uinfo
->value
.enumerated
.name
,
2573 e
->texts
[uinfo
->value
.enumerated
.item
]);
2576 EXPORT_SYMBOL_GPL(snd_soc_info_enum_ext
);
2579 * snd_soc_info_volsw_ext - external single mixer info callback
2580 * @kcontrol: mixer control
2581 * @uinfo: control element information
2583 * Callback to provide information about a single external mixer control.
2585 * Returns 0 for success.
2587 int snd_soc_info_volsw_ext(struct snd_kcontrol
*kcontrol
,
2588 struct snd_ctl_elem_info
*uinfo
)
2590 int max
= kcontrol
->private_value
;
2592 if (max
== 1 && !strstr(kcontrol
->id
.name
, " Volume"))
2593 uinfo
->type
= SNDRV_CTL_ELEM_TYPE_BOOLEAN
;
2595 uinfo
->type
= SNDRV_CTL_ELEM_TYPE_INTEGER
;
2598 uinfo
->value
.integer
.min
= 0;
2599 uinfo
->value
.integer
.max
= max
;
2602 EXPORT_SYMBOL_GPL(snd_soc_info_volsw_ext
);
2605 * snd_soc_info_volsw - single mixer info callback
2606 * @kcontrol: mixer control
2607 * @uinfo: control element information
2609 * Callback to provide information about a single mixer control, or a double
2610 * mixer control that spans 2 registers.
2612 * Returns 0 for success.
2614 int snd_soc_info_volsw(struct snd_kcontrol
*kcontrol
,
2615 struct snd_ctl_elem_info
*uinfo
)
2617 struct soc_mixer_control
*mc
=
2618 (struct soc_mixer_control
*)kcontrol
->private_value
;
2621 if (!mc
->platform_max
)
2622 mc
->platform_max
= mc
->max
;
2623 platform_max
= mc
->platform_max
;
2625 if (platform_max
== 1 && !strstr(kcontrol
->id
.name
, " Volume"))
2626 uinfo
->type
= SNDRV_CTL_ELEM_TYPE_BOOLEAN
;
2628 uinfo
->type
= SNDRV_CTL_ELEM_TYPE_INTEGER
;
2630 uinfo
->count
= snd_soc_volsw_is_stereo(mc
) ? 2 : 1;
2631 uinfo
->value
.integer
.min
= 0;
2632 uinfo
->value
.integer
.max
= platform_max
;
2635 EXPORT_SYMBOL_GPL(snd_soc_info_volsw
);
2638 * snd_soc_get_volsw - single mixer get callback
2639 * @kcontrol: mixer control
2640 * @ucontrol: control element information
2642 * Callback to get the value of a single mixer control, or a double mixer
2643 * control that spans 2 registers.
2645 * Returns 0 for success.
2647 int snd_soc_get_volsw(struct snd_kcontrol
*kcontrol
,
2648 struct snd_ctl_elem_value
*ucontrol
)
2650 struct soc_mixer_control
*mc
=
2651 (struct soc_mixer_control
*)kcontrol
->private_value
;
2652 struct snd_soc_codec
*codec
= snd_kcontrol_chip(kcontrol
);
2653 unsigned int reg
= mc
->reg
;
2654 unsigned int reg2
= mc
->rreg
;
2655 unsigned int shift
= mc
->shift
;
2656 unsigned int rshift
= mc
->rshift
;
2658 unsigned int mask
= (1 << fls(max
)) - 1;
2659 unsigned int invert
= mc
->invert
;
2661 ucontrol
->value
.integer
.value
[0] =
2662 (snd_soc_read(codec
, reg
) >> shift
) & mask
;
2664 ucontrol
->value
.integer
.value
[0] =
2665 max
- ucontrol
->value
.integer
.value
[0];
2667 if (snd_soc_volsw_is_stereo(mc
)) {
2669 ucontrol
->value
.integer
.value
[1] =
2670 (snd_soc_read(codec
, reg
) >> rshift
) & mask
;
2672 ucontrol
->value
.integer
.value
[1] =
2673 (snd_soc_read(codec
, reg2
) >> shift
) & mask
;
2675 ucontrol
->value
.integer
.value
[1] =
2676 max
- ucontrol
->value
.integer
.value
[1];
2681 EXPORT_SYMBOL_GPL(snd_soc_get_volsw
);
2684 * snd_soc_put_volsw - single mixer put callback
2685 * @kcontrol: mixer control
2686 * @ucontrol: control element information
2688 * Callback to set the value of a single mixer control, or a double mixer
2689 * control that spans 2 registers.
2691 * Returns 0 for success.
2693 int snd_soc_put_volsw(struct snd_kcontrol
*kcontrol
,
2694 struct snd_ctl_elem_value
*ucontrol
)
2696 struct soc_mixer_control
*mc
=
2697 (struct soc_mixer_control
*)kcontrol
->private_value
;
2698 struct snd_soc_codec
*codec
= snd_kcontrol_chip(kcontrol
);
2699 unsigned int reg
= mc
->reg
;
2700 unsigned int reg2
= mc
->rreg
;
2701 unsigned int shift
= mc
->shift
;
2702 unsigned int rshift
= mc
->rshift
;
2704 unsigned int mask
= (1 << fls(max
)) - 1;
2705 unsigned int invert
= mc
->invert
;
2708 unsigned int val2
= 0;
2709 unsigned int val
, val_mask
;
2711 val
= (ucontrol
->value
.integer
.value
[0] & mask
);
2714 val_mask
= mask
<< shift
;
2716 if (snd_soc_volsw_is_stereo(mc
)) {
2717 val2
= (ucontrol
->value
.integer
.value
[1] & mask
);
2721 val_mask
|= mask
<< rshift
;
2722 val
|= val2
<< rshift
;
2724 val2
= val2
<< shift
;
2728 err
= snd_soc_update_bits_locked(codec
, reg
, val_mask
, val
);
2733 err
= snd_soc_update_bits_locked(codec
, reg2
, val_mask
, val2
);
2737 EXPORT_SYMBOL_GPL(snd_soc_put_volsw
);
2740 * snd_soc_get_volsw_sx - single mixer get callback
2741 * @kcontrol: mixer control
2742 * @ucontrol: control element information
2744 * Callback to get the value of a single mixer control, or a double mixer
2745 * control that spans 2 registers.
2747 * Returns 0 for success.
2749 int snd_soc_get_volsw_sx(struct snd_kcontrol
*kcontrol
,
2750 struct snd_ctl_elem_value
*ucontrol
)
2752 struct snd_soc_codec
*codec
= snd_kcontrol_chip(kcontrol
);
2753 struct soc_mixer_control
*mc
=
2754 (struct soc_mixer_control
*)kcontrol
->private_value
;
2756 unsigned int reg
= mc
->reg
;
2757 unsigned int reg2
= mc
->rreg
;
2758 unsigned int shift
= mc
->shift
;
2759 unsigned int rshift
= mc
->rshift
;
2762 int mask
= (1 << (fls(min
+ max
) - 1)) - 1;
2764 ucontrol
->value
.integer
.value
[0] =
2765 ((snd_soc_read(codec
, reg
) >> shift
) - min
) & mask
;
2767 if (snd_soc_volsw_is_stereo(mc
))
2768 ucontrol
->value
.integer
.value
[1] =
2769 ((snd_soc_read(codec
, reg2
) >> rshift
) - min
) & mask
;
2773 EXPORT_SYMBOL_GPL(snd_soc_get_volsw_sx
);
2776 * snd_soc_put_volsw_sx - double mixer set callback
2777 * @kcontrol: mixer control
2778 * @uinfo: control element information
2780 * Callback to set the value of a double mixer control that spans 2 registers.
2782 * Returns 0 for success.
2784 int snd_soc_put_volsw_sx(struct snd_kcontrol
*kcontrol
,
2785 struct snd_ctl_elem_value
*ucontrol
)
2787 struct snd_soc_codec
*codec
= snd_kcontrol_chip(kcontrol
);
2788 struct soc_mixer_control
*mc
=
2789 (struct soc_mixer_control
*)kcontrol
->private_value
;
2791 unsigned int reg
= mc
->reg
;
2792 unsigned int reg2
= mc
->rreg
;
2793 unsigned int shift
= mc
->shift
;
2794 unsigned int rshift
= mc
->rshift
;
2797 int mask
= (1 << (fls(min
+ max
) - 1)) - 1;
2799 unsigned short val
, val_mask
, val2
= 0;
2801 val_mask
= mask
<< shift
;
2802 val
= (ucontrol
->value
.integer
.value
[0] + min
) & mask
;
2805 err
= snd_soc_update_bits_locked(codec
, reg
, val_mask
, val
);
2809 if (snd_soc_volsw_is_stereo(mc
)) {
2810 val_mask
= mask
<< rshift
;
2811 val2
= (ucontrol
->value
.integer
.value
[1] + min
) & mask
;
2812 val2
= val2
<< rshift
;
2814 if (snd_soc_update_bits_locked(codec
, reg2
, val_mask
, val2
))
2819 EXPORT_SYMBOL_GPL(snd_soc_put_volsw_sx
);
2822 * snd_soc_info_volsw_s8 - signed mixer info callback
2823 * @kcontrol: mixer control
2824 * @uinfo: control element information
2826 * Callback to provide information about a signed mixer control.
2828 * Returns 0 for success.
2830 int snd_soc_info_volsw_s8(struct snd_kcontrol
*kcontrol
,
2831 struct snd_ctl_elem_info
*uinfo
)
2833 struct soc_mixer_control
*mc
=
2834 (struct soc_mixer_control
*)kcontrol
->private_value
;
2838 if (!mc
->platform_max
)
2839 mc
->platform_max
= mc
->max
;
2840 platform_max
= mc
->platform_max
;
2842 uinfo
->type
= SNDRV_CTL_ELEM_TYPE_INTEGER
;
2844 uinfo
->value
.integer
.min
= 0;
2845 uinfo
->value
.integer
.max
= platform_max
- min
;
2848 EXPORT_SYMBOL_GPL(snd_soc_info_volsw_s8
);
2851 * snd_soc_get_volsw_s8 - signed mixer get callback
2852 * @kcontrol: mixer control
2853 * @ucontrol: control element information
2855 * Callback to get the value of a signed mixer control.
2857 * Returns 0 for success.
2859 int snd_soc_get_volsw_s8(struct snd_kcontrol
*kcontrol
,
2860 struct snd_ctl_elem_value
*ucontrol
)
2862 struct soc_mixer_control
*mc
=
2863 (struct soc_mixer_control
*)kcontrol
->private_value
;
2864 struct snd_soc_codec
*codec
= snd_kcontrol_chip(kcontrol
);
2865 unsigned int reg
= mc
->reg
;
2867 int val
= snd_soc_read(codec
, reg
);
2869 ucontrol
->value
.integer
.value
[0] =
2870 ((signed char)(val
& 0xff))-min
;
2871 ucontrol
->value
.integer
.value
[1] =
2872 ((signed char)((val
>> 8) & 0xff))-min
;
2875 EXPORT_SYMBOL_GPL(snd_soc_get_volsw_s8
);
2878 * snd_soc_put_volsw_sgn - signed mixer put callback
2879 * @kcontrol: mixer control
2880 * @ucontrol: control element information
2882 * Callback to set the value of a signed mixer control.
2884 * Returns 0 for success.
2886 int snd_soc_put_volsw_s8(struct snd_kcontrol
*kcontrol
,
2887 struct snd_ctl_elem_value
*ucontrol
)
2889 struct soc_mixer_control
*mc
=
2890 (struct soc_mixer_control
*)kcontrol
->private_value
;
2891 struct snd_soc_codec
*codec
= snd_kcontrol_chip(kcontrol
);
2892 unsigned int reg
= mc
->reg
;
2896 val
= (ucontrol
->value
.integer
.value
[0]+min
) & 0xff;
2897 val
|= ((ucontrol
->value
.integer
.value
[1]+min
) & 0xff) << 8;
2899 return snd_soc_update_bits_locked(codec
, reg
, 0xffff, val
);
2901 EXPORT_SYMBOL_GPL(snd_soc_put_volsw_s8
);
2904 * snd_soc_info_volsw_range - single mixer info callback with range.
2905 * @kcontrol: mixer control
2906 * @uinfo: control element information
2908 * Callback to provide information, within a range, about a single
2911 * returns 0 for success.
2913 int snd_soc_info_volsw_range(struct snd_kcontrol
*kcontrol
,
2914 struct snd_ctl_elem_info
*uinfo
)
2916 struct soc_mixer_control
*mc
=
2917 (struct soc_mixer_control
*)kcontrol
->private_value
;
2921 if (!mc
->platform_max
)
2922 mc
->platform_max
= mc
->max
;
2923 platform_max
= mc
->platform_max
;
2925 uinfo
->type
= SNDRV_CTL_ELEM_TYPE_INTEGER
;
2926 uinfo
->count
= snd_soc_volsw_is_stereo(mc
) ? 2 : 1;
2927 uinfo
->value
.integer
.min
= 0;
2928 uinfo
->value
.integer
.max
= platform_max
- min
;
2932 EXPORT_SYMBOL_GPL(snd_soc_info_volsw_range
);
2935 * snd_soc_put_volsw_range - single mixer put value callback with range.
2936 * @kcontrol: mixer control
2937 * @ucontrol: control element information
2939 * Callback to set the value, within a range, for a single mixer control.
2941 * Returns 0 for success.
2943 int snd_soc_put_volsw_range(struct snd_kcontrol
*kcontrol
,
2944 struct snd_ctl_elem_value
*ucontrol
)
2946 struct soc_mixer_control
*mc
=
2947 (struct soc_mixer_control
*)kcontrol
->private_value
;
2948 struct snd_soc_codec
*codec
= snd_kcontrol_chip(kcontrol
);
2949 unsigned int reg
= mc
->reg
;
2950 unsigned int rreg
= mc
->rreg
;
2951 unsigned int shift
= mc
->shift
;
2954 unsigned int mask
= (1 << fls(max
)) - 1;
2955 unsigned int invert
= mc
->invert
;
2956 unsigned int val
, val_mask
;
2959 val
= ((ucontrol
->value
.integer
.value
[0] + min
) & mask
);
2962 val_mask
= mask
<< shift
;
2965 ret
= snd_soc_update_bits_locked(codec
, reg
, val_mask
, val
);
2969 if (snd_soc_volsw_is_stereo(mc
)) {
2970 val
= ((ucontrol
->value
.integer
.value
[1] + min
) & mask
);
2973 val_mask
= mask
<< shift
;
2976 ret
= snd_soc_update_bits_locked(codec
, rreg
, val_mask
, val
);
2981 EXPORT_SYMBOL_GPL(snd_soc_put_volsw_range
);
2984 * snd_soc_get_volsw_range - single mixer get callback with range
2985 * @kcontrol: mixer control
2986 * @ucontrol: control element information
2988 * Callback to get the value, within a range, of a single mixer control.
2990 * Returns 0 for success.
2992 int snd_soc_get_volsw_range(struct snd_kcontrol
*kcontrol
,
2993 struct snd_ctl_elem_value
*ucontrol
)
2995 struct soc_mixer_control
*mc
=
2996 (struct soc_mixer_control
*)kcontrol
->private_value
;
2997 struct snd_soc_codec
*codec
= snd_kcontrol_chip(kcontrol
);
2998 unsigned int reg
= mc
->reg
;
2999 unsigned int rreg
= mc
->rreg
;
3000 unsigned int shift
= mc
->shift
;
3003 unsigned int mask
= (1 << fls(max
)) - 1;
3004 unsigned int invert
= mc
->invert
;
3006 ucontrol
->value
.integer
.value
[0] =
3007 (snd_soc_read(codec
, reg
) >> shift
) & mask
;
3009 ucontrol
->value
.integer
.value
[0] =
3010 max
- ucontrol
->value
.integer
.value
[0];
3011 ucontrol
->value
.integer
.value
[0] =
3012 ucontrol
->value
.integer
.value
[0] - min
;
3014 if (snd_soc_volsw_is_stereo(mc
)) {
3015 ucontrol
->value
.integer
.value
[1] =
3016 (snd_soc_read(codec
, rreg
) >> shift
) & mask
;
3018 ucontrol
->value
.integer
.value
[1] =
3019 max
- ucontrol
->value
.integer
.value
[1];
3020 ucontrol
->value
.integer
.value
[1] =
3021 ucontrol
->value
.integer
.value
[1] - min
;
3026 EXPORT_SYMBOL_GPL(snd_soc_get_volsw_range
);
3029 * snd_soc_limit_volume - Set new limit to an existing volume control.
3031 * @codec: where to look for the control
3032 * @name: Name of the control
3033 * @max: new maximum limit
3035 * Return 0 for success, else error.
3037 int snd_soc_limit_volume(struct snd_soc_codec
*codec
,
3038 const char *name
, int max
)
3040 struct snd_card
*card
= codec
->card
->snd_card
;
3041 struct snd_kcontrol
*kctl
;
3042 struct soc_mixer_control
*mc
;
3046 /* Sanity check for name and max */
3047 if (unlikely(!name
|| max
<= 0))
3050 list_for_each_entry(kctl
, &card
->controls
, list
) {
3051 if (!strncmp(kctl
->id
.name
, name
, sizeof(kctl
->id
.name
))) {
3057 mc
= (struct soc_mixer_control
*)kctl
->private_value
;
3058 if (max
<= mc
->max
) {
3059 mc
->platform_max
= max
;
3065 EXPORT_SYMBOL_GPL(snd_soc_limit_volume
);
3067 int snd_soc_bytes_info(struct snd_kcontrol
*kcontrol
,
3068 struct snd_ctl_elem_info
*uinfo
)
3070 struct snd_soc_codec
*codec
= snd_kcontrol_chip(kcontrol
);
3071 struct soc_bytes
*params
= (void *)kcontrol
->private_value
;
3073 uinfo
->type
= SNDRV_CTL_ELEM_TYPE_BYTES
;
3074 uinfo
->count
= params
->num_regs
* codec
->val_bytes
;
3078 EXPORT_SYMBOL_GPL(snd_soc_bytes_info
);
3080 int snd_soc_bytes_get(struct snd_kcontrol
*kcontrol
,
3081 struct snd_ctl_elem_value
*ucontrol
)
3083 struct soc_bytes
*params
= (void *)kcontrol
->private_value
;
3084 struct snd_soc_codec
*codec
= snd_kcontrol_chip(kcontrol
);
3087 if (codec
->using_regmap
)
3088 ret
= regmap_raw_read(codec
->control_data
, params
->base
,
3089 ucontrol
->value
.bytes
.data
,
3090 params
->num_regs
* codec
->val_bytes
);
3094 /* Hide any masked bytes to ensure consistent data reporting */
3095 if (ret
== 0 && params
->mask
) {
3096 switch (codec
->val_bytes
) {
3098 ucontrol
->value
.bytes
.data
[0] &= ~params
->mask
;
3101 ((u16
*)(&ucontrol
->value
.bytes
.data
))[0]
3105 ((u32
*)(&ucontrol
->value
.bytes
.data
))[0]
3115 EXPORT_SYMBOL_GPL(snd_soc_bytes_get
);
3117 int snd_soc_bytes_put(struct snd_kcontrol
*kcontrol
,
3118 struct snd_ctl_elem_value
*ucontrol
)
3120 struct soc_bytes
*params
= (void *)kcontrol
->private_value
;
3121 struct snd_soc_codec
*codec
= snd_kcontrol_chip(kcontrol
);
3126 if (!codec
->using_regmap
)
3129 len
= params
->num_regs
* codec
->val_bytes
;
3131 data
= kmemdup(ucontrol
->value
.bytes
.data
, len
, GFP_KERNEL
| GFP_DMA
);
3136 * If we've got a mask then we need to preserve the register
3137 * bits. We shouldn't modify the incoming data so take a
3141 ret
= regmap_read(codec
->control_data
, params
->base
, &val
);
3145 val
&= params
->mask
;
3147 switch (codec
->val_bytes
) {
3149 ((u8
*)data
)[0] &= ~params
->mask
;
3150 ((u8
*)data
)[0] |= val
;
3153 ((u16
*)data
)[0] &= cpu_to_be16(~params
->mask
);
3154 ((u16
*)data
)[0] |= cpu_to_be16(val
);
3157 ((u32
*)data
)[0] &= cpu_to_be32(~params
->mask
);
3158 ((u32
*)data
)[0] |= cpu_to_be32(val
);
3166 ret
= regmap_raw_write(codec
->control_data
, params
->base
,
3174 EXPORT_SYMBOL_GPL(snd_soc_bytes_put
);
3177 * snd_soc_info_xr_sx - signed multi register info callback
3178 * @kcontrol: mreg control
3179 * @uinfo: control element information
3181 * Callback to provide information of a control that can
3182 * span multiple codec registers which together
3183 * forms a single signed value in a MSB/LSB manner.
3185 * Returns 0 for success.
3187 int snd_soc_info_xr_sx(struct snd_kcontrol
*kcontrol
,
3188 struct snd_ctl_elem_info
*uinfo
)
3190 struct soc_mreg_control
*mc
=
3191 (struct soc_mreg_control
*)kcontrol
->private_value
;
3192 uinfo
->type
= SNDRV_CTL_ELEM_TYPE_INTEGER
;
3194 uinfo
->value
.integer
.min
= mc
->min
;
3195 uinfo
->value
.integer
.max
= mc
->max
;
3199 EXPORT_SYMBOL_GPL(snd_soc_info_xr_sx
);
3202 * snd_soc_get_xr_sx - signed multi register get callback
3203 * @kcontrol: mreg control
3204 * @ucontrol: control element information
3206 * Callback to get the value of a control that can span
3207 * multiple codec registers which together forms a single
3208 * signed value in a MSB/LSB manner. The control supports
3209 * specifying total no of bits used to allow for bitfields
3210 * across the multiple codec registers.
3212 * Returns 0 for success.
3214 int snd_soc_get_xr_sx(struct snd_kcontrol
*kcontrol
,
3215 struct snd_ctl_elem_value
*ucontrol
)
3217 struct soc_mreg_control
*mc
=
3218 (struct soc_mreg_control
*)kcontrol
->private_value
;
3219 struct snd_soc_codec
*codec
= snd_kcontrol_chip(kcontrol
);
3220 unsigned int regbase
= mc
->regbase
;
3221 unsigned int regcount
= mc
->regcount
;
3222 unsigned int regwshift
= codec
->driver
->reg_word_size
* BITS_PER_BYTE
;
3223 unsigned int regwmask
= (1<<regwshift
)-1;
3224 unsigned int invert
= mc
->invert
;
3225 unsigned long mask
= (1UL<<mc
->nbits
)-1;
3229 unsigned long regval
;
3232 for (i
= 0; i
< regcount
; i
++) {
3233 regval
= snd_soc_read(codec
, regbase
+i
) & regwmask
;
3234 val
|= regval
<< (regwshift
*(regcount
-i
-1));
3237 if (min
< 0 && val
> max
)
3241 ucontrol
->value
.integer
.value
[0] = val
;
3245 EXPORT_SYMBOL_GPL(snd_soc_get_xr_sx
);
3248 * snd_soc_put_xr_sx - signed multi register get callback
3249 * @kcontrol: mreg control
3250 * @ucontrol: control element information
3252 * Callback to set the value of a control that can span
3253 * multiple codec registers which together forms a single
3254 * signed value in a MSB/LSB manner. The control supports
3255 * specifying total no of bits used to allow for bitfields
3256 * across the multiple codec registers.
3258 * Returns 0 for success.
3260 int snd_soc_put_xr_sx(struct snd_kcontrol
*kcontrol
,
3261 struct snd_ctl_elem_value
*ucontrol
)
3263 struct soc_mreg_control
*mc
=
3264 (struct soc_mreg_control
*)kcontrol
->private_value
;
3265 struct snd_soc_codec
*codec
= snd_kcontrol_chip(kcontrol
);
3266 unsigned int regbase
= mc
->regbase
;
3267 unsigned int regcount
= mc
->regcount
;
3268 unsigned int regwshift
= codec
->driver
->reg_word_size
* BITS_PER_BYTE
;
3269 unsigned int regwmask
= (1<<regwshift
)-1;
3270 unsigned int invert
= mc
->invert
;
3271 unsigned long mask
= (1UL<<mc
->nbits
)-1;
3273 long val
= ucontrol
->value
.integer
.value
[0];
3274 unsigned int i
, regval
, regmask
;
3280 for (i
= 0; i
< regcount
; i
++) {
3281 regval
= (val
>> (regwshift
*(regcount
-i
-1))) & regwmask
;
3282 regmask
= (mask
>> (regwshift
*(regcount
-i
-1))) & regwmask
;
3283 err
= snd_soc_update_bits_locked(codec
, regbase
+i
,
3291 EXPORT_SYMBOL_GPL(snd_soc_put_xr_sx
);
3294 * snd_soc_get_strobe - strobe get callback
3295 * @kcontrol: mixer control
3296 * @ucontrol: control element information
3298 * Callback get the value of a strobe mixer control.
3300 * Returns 0 for success.
3302 int snd_soc_get_strobe(struct snd_kcontrol
*kcontrol
,
3303 struct snd_ctl_elem_value
*ucontrol
)
3305 struct soc_mixer_control
*mc
=
3306 (struct soc_mixer_control
*)kcontrol
->private_value
;
3307 struct snd_soc_codec
*codec
= snd_kcontrol_chip(kcontrol
);
3308 unsigned int reg
= mc
->reg
;
3309 unsigned int shift
= mc
->shift
;
3310 unsigned int mask
= 1 << shift
;
3311 unsigned int invert
= mc
->invert
!= 0;
3312 unsigned int val
= snd_soc_read(codec
, reg
) & mask
;
3314 if (shift
!= 0 && val
!= 0)
3316 ucontrol
->value
.enumerated
.item
[0] = val
^ invert
;
3320 EXPORT_SYMBOL_GPL(snd_soc_get_strobe
);
3323 * snd_soc_put_strobe - strobe put callback
3324 * @kcontrol: mixer control
3325 * @ucontrol: control element information
3327 * Callback strobe a register bit to high then low (or the inverse)
3328 * in one pass of a single mixer enum control.
3330 * Returns 1 for success.
3332 int snd_soc_put_strobe(struct snd_kcontrol
*kcontrol
,
3333 struct snd_ctl_elem_value
*ucontrol
)
3335 struct soc_mixer_control
*mc
=
3336 (struct soc_mixer_control
*)kcontrol
->private_value
;
3337 struct snd_soc_codec
*codec
= snd_kcontrol_chip(kcontrol
);
3338 unsigned int reg
= mc
->reg
;
3339 unsigned int shift
= mc
->shift
;
3340 unsigned int mask
= 1 << shift
;
3341 unsigned int invert
= mc
->invert
!= 0;
3342 unsigned int strobe
= ucontrol
->value
.enumerated
.item
[0] != 0;
3343 unsigned int val1
= (strobe
^ invert
) ? mask
: 0;
3344 unsigned int val2
= (strobe
^ invert
) ? 0 : mask
;
3347 err
= snd_soc_update_bits_locked(codec
, reg
, mask
, val1
);
3351 err
= snd_soc_update_bits_locked(codec
, reg
, mask
, val2
);
3354 EXPORT_SYMBOL_GPL(snd_soc_put_strobe
);
3357 * snd_soc_dai_set_sysclk - configure DAI system or master clock.
3359 * @clk_id: DAI specific clock ID
3360 * @freq: new clock frequency in Hz
3361 * @dir: new clock direction - input/output.
3363 * Configures the DAI master (MCLK) or system (SYSCLK) clocking.
3365 int snd_soc_dai_set_sysclk(struct snd_soc_dai
*dai
, int clk_id
,
3366 unsigned int freq
, int dir
)
3368 if (dai
->driver
&& dai
->driver
->ops
->set_sysclk
)
3369 return dai
->driver
->ops
->set_sysclk(dai
, clk_id
, freq
, dir
);
3370 else if (dai
->codec
&& dai
->codec
->driver
->set_sysclk
)
3371 return dai
->codec
->driver
->set_sysclk(dai
->codec
, clk_id
, 0,
3376 EXPORT_SYMBOL_GPL(snd_soc_dai_set_sysclk
);
3379 * snd_soc_codec_set_sysclk - configure CODEC system or master clock.
3381 * @clk_id: DAI specific clock ID
3382 * @source: Source for the clock
3383 * @freq: new clock frequency in Hz
3384 * @dir: new clock direction - input/output.
3386 * Configures the CODEC master (MCLK) or system (SYSCLK) clocking.
3388 int snd_soc_codec_set_sysclk(struct snd_soc_codec
*codec
, int clk_id
,
3389 int source
, unsigned int freq
, int dir
)
3391 if (codec
->driver
->set_sysclk
)
3392 return codec
->driver
->set_sysclk(codec
, clk_id
, source
,
3397 EXPORT_SYMBOL_GPL(snd_soc_codec_set_sysclk
);
3400 * snd_soc_dai_set_clkdiv - configure DAI clock dividers.
3402 * @div_id: DAI specific clock divider ID
3403 * @div: new clock divisor.
3405 * Configures the clock dividers. This is used to derive the best DAI bit and
3406 * frame clocks from the system or master clock. It's best to set the DAI bit
3407 * and frame clocks as low as possible to save system power.
3409 int snd_soc_dai_set_clkdiv(struct snd_soc_dai
*dai
,
3410 int div_id
, int div
)
3412 if (dai
->driver
&& dai
->driver
->ops
->set_clkdiv
)
3413 return dai
->driver
->ops
->set_clkdiv(dai
, div_id
, div
);
3417 EXPORT_SYMBOL_GPL(snd_soc_dai_set_clkdiv
);
3420 * snd_soc_dai_set_pll - configure DAI PLL.
3422 * @pll_id: DAI specific PLL ID
3423 * @source: DAI specific source for the PLL
3424 * @freq_in: PLL input clock frequency in Hz
3425 * @freq_out: requested PLL output clock frequency in Hz
3427 * Configures and enables PLL to generate output clock based on input clock.
3429 int snd_soc_dai_set_pll(struct snd_soc_dai
*dai
, int pll_id
, int source
,
3430 unsigned int freq_in
, unsigned int freq_out
)
3432 if (dai
->driver
&& dai
->driver
->ops
->set_pll
)
3433 return dai
->driver
->ops
->set_pll(dai
, pll_id
, source
,
3435 else if (dai
->codec
&& dai
->codec
->driver
->set_pll
)
3436 return dai
->codec
->driver
->set_pll(dai
->codec
, pll_id
, source
,
3441 EXPORT_SYMBOL_GPL(snd_soc_dai_set_pll
);
3444 * snd_soc_codec_set_pll - configure codec PLL.
3446 * @pll_id: DAI specific PLL ID
3447 * @source: DAI specific source for the PLL
3448 * @freq_in: PLL input clock frequency in Hz
3449 * @freq_out: requested PLL output clock frequency in Hz
3451 * Configures and enables PLL to generate output clock based on input clock.
3453 int snd_soc_codec_set_pll(struct snd_soc_codec
*codec
, int pll_id
, int source
,
3454 unsigned int freq_in
, unsigned int freq_out
)
3456 if (codec
->driver
->set_pll
)
3457 return codec
->driver
->set_pll(codec
, pll_id
, source
,
3462 EXPORT_SYMBOL_GPL(snd_soc_codec_set_pll
);
3465 * snd_soc_dai_set_fmt - configure DAI hardware audio format.
3467 * @fmt: SND_SOC_DAIFMT_ format value.
3469 * Configures the DAI hardware format and clocking.
3471 int snd_soc_dai_set_fmt(struct snd_soc_dai
*dai
, unsigned int fmt
)
3473 if (dai
->driver
== NULL
)
3475 if (dai
->driver
->ops
->set_fmt
== NULL
)
3477 return dai
->driver
->ops
->set_fmt(dai
, fmt
);
3479 EXPORT_SYMBOL_GPL(snd_soc_dai_set_fmt
);
3482 * snd_soc_dai_set_tdm_slot - configure DAI TDM.
3484 * @tx_mask: bitmask representing active TX slots.
3485 * @rx_mask: bitmask representing active RX slots.
3486 * @slots: Number of slots in use.
3487 * @slot_width: Width in bits for each slot.
3489 * Configures a DAI for TDM operation. Both mask and slots are codec and DAI
3492 int snd_soc_dai_set_tdm_slot(struct snd_soc_dai
*dai
,
3493 unsigned int tx_mask
, unsigned int rx_mask
, int slots
, int slot_width
)
3495 if (dai
->driver
&& dai
->driver
->ops
->set_tdm_slot
)
3496 return dai
->driver
->ops
->set_tdm_slot(dai
, tx_mask
, rx_mask
,
3501 EXPORT_SYMBOL_GPL(snd_soc_dai_set_tdm_slot
);
3504 * snd_soc_dai_set_channel_map - configure DAI audio channel map
3506 * @tx_num: how many TX channels
3507 * @tx_slot: pointer to an array which imply the TX slot number channel
3509 * @rx_num: how many RX channels
3510 * @rx_slot: pointer to an array which imply the RX slot number channel
3513 * configure the relationship between channel number and TDM slot number.
3515 int snd_soc_dai_set_channel_map(struct snd_soc_dai
*dai
,
3516 unsigned int tx_num
, unsigned int *tx_slot
,
3517 unsigned int rx_num
, unsigned int *rx_slot
)
3519 if (dai
->driver
&& dai
->driver
->ops
->set_channel_map
)
3520 return dai
->driver
->ops
->set_channel_map(dai
, tx_num
, tx_slot
,
3525 EXPORT_SYMBOL_GPL(snd_soc_dai_set_channel_map
);
3528 * snd_soc_dai_set_tristate - configure DAI system or master clock.
3530 * @tristate: tristate enable
3532 * Tristates the DAI so that others can use it.
3534 int snd_soc_dai_set_tristate(struct snd_soc_dai
*dai
, int tristate
)
3536 if (dai
->driver
&& dai
->driver
->ops
->set_tristate
)
3537 return dai
->driver
->ops
->set_tristate(dai
, tristate
);
3541 EXPORT_SYMBOL_GPL(snd_soc_dai_set_tristate
);
3544 * snd_soc_dai_digital_mute - configure DAI system or master clock.
3546 * @mute: mute enable
3547 * @direction: stream to mute
3549 * Mutes the DAI DAC.
3551 int snd_soc_dai_digital_mute(struct snd_soc_dai
*dai
, int mute
,
3557 if (dai
->driver
->ops
->mute_stream
)
3558 return dai
->driver
->ops
->mute_stream(dai
, mute
, direction
);
3559 else if (direction
== SNDRV_PCM_STREAM_PLAYBACK
&&
3560 dai
->driver
->ops
->digital_mute
)
3561 return dai
->driver
->ops
->digital_mute(dai
, mute
);
3565 EXPORT_SYMBOL_GPL(snd_soc_dai_digital_mute
);
3568 * snd_soc_register_card - Register a card with the ASoC core
3570 * @card: Card to register
3573 int snd_soc_register_card(struct snd_soc_card
*card
)
3577 if (!card
->name
|| !card
->dev
)
3580 for (i
= 0; i
< card
->num_links
; i
++) {
3581 struct snd_soc_dai_link
*link
= &card
->dai_link
[i
];
3584 * Codec must be specified by 1 of name or OF node,
3585 * not both or neither.
3587 if (!!link
->codec_name
== !!link
->codec_of_node
) {
3588 dev_err(card
->dev
, "ASoC: Neither/both codec"
3589 " name/of_node are set for %s\n", link
->name
);
3592 /* Codec DAI name must be specified */
3593 if (!link
->codec_dai_name
) {
3594 dev_err(card
->dev
, "ASoC: codec_dai_name not"
3595 " set for %s\n", link
->name
);
3600 * Platform may be specified by either name or OF node, but
3601 * can be left unspecified, and a dummy platform will be used.
3603 if (link
->platform_name
&& link
->platform_of_node
) {
3604 dev_err(card
->dev
, "ASoC: Both platform name/of_node"
3605 " are set for %s\n", link
->name
);
3610 * CPU device may be specified by either name or OF node, but
3611 * can be left unspecified, and will be matched based on DAI
3614 if (link
->cpu_name
&& link
->cpu_of_node
) {
3615 dev_err(card
->dev
, "ASoC: Neither/both "
3616 "cpu name/of_node are set for %s\n",link
->name
);
3620 * At least one of CPU DAI name or CPU device name/node must be
3623 if (!link
->cpu_dai_name
&&
3624 !(link
->cpu_name
|| link
->cpu_of_node
)) {
3625 dev_err(card
->dev
, "ASoC: Neither cpu_dai_name nor "
3626 "cpu_name/of_node are set for %s\n", link
->name
);
3631 dev_set_drvdata(card
->dev
, card
);
3633 snd_soc_initialize_card_lists(card
);
3635 soc_init_card_debugfs(card
);
3637 card
->rtd
= devm_kzalloc(card
->dev
,
3638 sizeof(struct snd_soc_pcm_runtime
) *
3639 (card
->num_links
+ card
->num_aux_devs
),
3641 if (card
->rtd
== NULL
)
3644 card
->rtd_aux
= &card
->rtd
[card
->num_links
];
3646 for (i
= 0; i
< card
->num_links
; i
++)
3647 card
->rtd
[i
].dai_link
= &card
->dai_link
[i
];
3649 INIT_LIST_HEAD(&card
->list
);
3650 INIT_LIST_HEAD(&card
->dapm_dirty
);
3651 card
->instantiated
= 0;
3652 mutex_init(&card
->mutex
);
3653 mutex_init(&card
->dapm_mutex
);
3655 ret
= snd_soc_instantiate_card(card
);
3657 soc_cleanup_card_debugfs(card
);
3661 EXPORT_SYMBOL_GPL(snd_soc_register_card
);
3664 * snd_soc_unregister_card - Unregister a card with the ASoC core
3666 * @card: Card to unregister
3669 int snd_soc_unregister_card(struct snd_soc_card
*card
)
3671 if (card
->instantiated
)
3672 soc_cleanup_card_resources(card
);
3673 dev_dbg(card
->dev
, "ASoC: Unregistered card '%s'\n", card
->name
);
3677 EXPORT_SYMBOL_GPL(snd_soc_unregister_card
);
3680 * Simplify DAI link configuration by removing ".-1" from device names
3681 * and sanitizing names.
3683 static char *fmt_single_name(struct device
*dev
, int *id
)
3685 char *found
, name
[NAME_SIZE
];
3688 if (dev_name(dev
) == NULL
)
3691 strlcpy(name
, dev_name(dev
), NAME_SIZE
);
3693 /* are we a "%s.%d" name (platform and SPI components) */
3694 found
= strstr(name
, dev
->driver
->name
);
3697 if (sscanf(&found
[strlen(dev
->driver
->name
)], ".%d", id
) == 1) {
3699 /* discard ID from name if ID == -1 */
3701 found
[strlen(dev
->driver
->name
)] = '\0';
3705 /* I2C component devices are named "bus-addr" */
3706 if (sscanf(name
, "%x-%x", &id1
, &id2
) == 2) {
3707 char tmp
[NAME_SIZE
];
3709 /* create unique ID number from I2C addr and bus */
3710 *id
= ((id1
& 0xffff) << 16) + id2
;
3712 /* sanitize component name for DAI link creation */
3713 snprintf(tmp
, NAME_SIZE
, "%s.%s", dev
->driver
->name
, name
);
3714 strlcpy(name
, tmp
, NAME_SIZE
);
3719 return kstrdup(name
, GFP_KERNEL
);
3723 * Simplify DAI link naming for single devices with multiple DAIs by removing
3724 * any ".-1" and using the DAI name (instead of device name).
3726 static inline char *fmt_multiple_name(struct device
*dev
,
3727 struct snd_soc_dai_driver
*dai_drv
)
3729 if (dai_drv
->name
== NULL
) {
3730 dev_err(dev
, "ASoC: error - multiple DAI %s registered with"
3731 " no name\n", dev_name(dev
));
3735 return kstrdup(dai_drv
->name
, GFP_KERNEL
);
3739 * snd_soc_register_dai - Register a DAI with the ASoC core
3741 * @dai: DAI to register
3743 int snd_soc_register_dai(struct device
*dev
,
3744 struct snd_soc_dai_driver
*dai_drv
)
3746 struct snd_soc_codec
*codec
;
3747 struct snd_soc_dai
*dai
;
3749 dev_dbg(dev
, "ASoC: dai register %s\n", dev_name(dev
));
3751 dai
= kzalloc(sizeof(struct snd_soc_dai
), GFP_KERNEL
);
3755 /* create DAI component name */
3756 dai
->name
= fmt_single_name(dev
, &dai
->id
);
3757 if (dai
->name
== NULL
) {
3763 dai
->driver
= dai_drv
;
3764 dai
->dapm
.dev
= dev
;
3765 if (!dai
->driver
->ops
)
3766 dai
->driver
->ops
= &null_dai_ops
;
3768 mutex_lock(&client_mutex
);
3770 list_for_each_entry(codec
, &codec_list
, list
) {
3771 if (codec
->dev
== dev
) {
3772 dev_dbg(dev
, "ASoC: Mapped DAI %s to CODEC %s\n",
3773 dai
->name
, codec
->name
);
3780 dai
->dapm
.idle_bias_off
= 1;
3782 list_add(&dai
->list
, &dai_list
);
3784 mutex_unlock(&client_mutex
);
3786 dev_dbg(dev
, "ASoC: Registered DAI '%s'\n", dai
->name
);
3790 EXPORT_SYMBOL_GPL(snd_soc_register_dai
);
3793 * snd_soc_unregister_dai - Unregister a DAI from the ASoC core
3795 * @dai: DAI to unregister
3797 void snd_soc_unregister_dai(struct device
*dev
)
3799 struct snd_soc_dai
*dai
;
3801 list_for_each_entry(dai
, &dai_list
, list
) {
3802 if (dev
== dai
->dev
)
3808 mutex_lock(&client_mutex
);
3809 list_del(&dai
->list
);
3810 mutex_unlock(&client_mutex
);
3812 dev_dbg(dev
, "ASoC: Unregistered DAI '%s'\n", dai
->name
);
3816 EXPORT_SYMBOL_GPL(snd_soc_unregister_dai
);
3819 * snd_soc_register_dais - Register multiple DAIs with the ASoC core
3821 * @dai: Array of DAIs to register
3822 * @count: Number of DAIs
3824 int snd_soc_register_dais(struct device
*dev
,
3825 struct snd_soc_dai_driver
*dai_drv
, size_t count
)
3827 struct snd_soc_codec
*codec
;
3828 struct snd_soc_dai
*dai
;
3831 dev_dbg(dev
, "ASoC: dai register %s #%Zu\n", dev_name(dev
), count
);
3833 for (i
= 0; i
< count
; i
++) {
3835 dai
= kzalloc(sizeof(struct snd_soc_dai
), GFP_KERNEL
);
3841 /* create DAI component name */
3842 dai
->name
= fmt_multiple_name(dev
, &dai_drv
[i
]);
3843 if (dai
->name
== NULL
) {
3850 dai
->driver
= &dai_drv
[i
];
3851 if (dai
->driver
->id
)
3852 dai
->id
= dai
->driver
->id
;
3855 dai
->dapm
.dev
= dev
;
3856 if (!dai
->driver
->ops
)
3857 dai
->driver
->ops
= &null_dai_ops
;
3859 mutex_lock(&client_mutex
);
3861 list_for_each_entry(codec
, &codec_list
, list
) {
3862 if (codec
->dev
== dev
) {
3863 dev_dbg(dev
, "ASoC: Mapped DAI %s to "
3864 "CODEC %s\n", dai
->name
, codec
->name
);
3871 dai
->dapm
.idle_bias_off
= 1;
3873 list_add(&dai
->list
, &dai_list
);
3875 mutex_unlock(&client_mutex
);
3877 dev_dbg(dai
->dev
, "ASoC: Registered DAI '%s'\n", dai
->name
);
3883 for (i
--; i
>= 0; i
--)
3884 snd_soc_unregister_dai(dev
);
3888 EXPORT_SYMBOL_GPL(snd_soc_register_dais
);
3891 * snd_soc_unregister_dais - Unregister multiple DAIs from the ASoC core
3893 * @dai: Array of DAIs to unregister
3894 * @count: Number of DAIs
3896 void snd_soc_unregister_dais(struct device
*dev
, size_t count
)
3900 for (i
= 0; i
< count
; i
++)
3901 snd_soc_unregister_dai(dev
);
3903 EXPORT_SYMBOL_GPL(snd_soc_unregister_dais
);
3906 * snd_soc_register_platform - Register a platform with the ASoC core
3908 * @platform: platform to register
3910 int snd_soc_register_platform(struct device
*dev
,
3911 struct snd_soc_platform_driver
*platform_drv
)
3913 struct snd_soc_platform
*platform
;
3915 dev_dbg(dev
, "ASoC: platform register %s\n", dev_name(dev
));
3917 platform
= kzalloc(sizeof(struct snd_soc_platform
), GFP_KERNEL
);
3918 if (platform
== NULL
)
3921 /* create platform component name */
3922 platform
->name
= fmt_single_name(dev
, &platform
->id
);
3923 if (platform
->name
== NULL
) {
3928 platform
->dev
= dev
;
3929 platform
->driver
= platform_drv
;
3930 platform
->dapm
.dev
= dev
;
3931 platform
->dapm
.platform
= platform
;
3932 platform
->dapm
.stream_event
= platform_drv
->stream_event
;
3933 mutex_init(&platform
->mutex
);
3935 mutex_lock(&client_mutex
);
3936 list_add(&platform
->list
, &platform_list
);
3937 mutex_unlock(&client_mutex
);
3939 dev_dbg(dev
, "ASoC: Registered platform '%s'\n", platform
->name
);
3943 EXPORT_SYMBOL_GPL(snd_soc_register_platform
);
3946 * snd_soc_unregister_platform - Unregister a platform from the ASoC core
3948 * @platform: platform to unregister
3950 void snd_soc_unregister_platform(struct device
*dev
)
3952 struct snd_soc_platform
*platform
;
3954 list_for_each_entry(platform
, &platform_list
, list
) {
3955 if (dev
== platform
->dev
)
3961 mutex_lock(&client_mutex
);
3962 list_del(&platform
->list
);
3963 mutex_unlock(&client_mutex
);
3965 dev_dbg(dev
, "ASoC: Unregistered platform '%s'\n", platform
->name
);
3966 kfree(platform
->name
);
3969 EXPORT_SYMBOL_GPL(snd_soc_unregister_platform
);
3971 static u64 codec_format_map
[] = {
3972 SNDRV_PCM_FMTBIT_S16_LE
| SNDRV_PCM_FMTBIT_S16_BE
,
3973 SNDRV_PCM_FMTBIT_U16_LE
| SNDRV_PCM_FMTBIT_U16_BE
,
3974 SNDRV_PCM_FMTBIT_S24_LE
| SNDRV_PCM_FMTBIT_S24_BE
,
3975 SNDRV_PCM_FMTBIT_U24_LE
| SNDRV_PCM_FMTBIT_U24_BE
,
3976 SNDRV_PCM_FMTBIT_S32_LE
| SNDRV_PCM_FMTBIT_S32_BE
,
3977 SNDRV_PCM_FMTBIT_U32_LE
| SNDRV_PCM_FMTBIT_U32_BE
,
3978 SNDRV_PCM_FMTBIT_S24_3LE
| SNDRV_PCM_FMTBIT_U24_3BE
,
3979 SNDRV_PCM_FMTBIT_U24_3LE
| SNDRV_PCM_FMTBIT_U24_3BE
,
3980 SNDRV_PCM_FMTBIT_S20_3LE
| SNDRV_PCM_FMTBIT_S20_3BE
,
3981 SNDRV_PCM_FMTBIT_U20_3LE
| SNDRV_PCM_FMTBIT_U20_3BE
,
3982 SNDRV_PCM_FMTBIT_S18_3LE
| SNDRV_PCM_FMTBIT_S18_3BE
,
3983 SNDRV_PCM_FMTBIT_U18_3LE
| SNDRV_PCM_FMTBIT_U18_3BE
,
3984 SNDRV_PCM_FMTBIT_FLOAT_LE
| SNDRV_PCM_FMTBIT_FLOAT_BE
,
3985 SNDRV_PCM_FMTBIT_FLOAT64_LE
| SNDRV_PCM_FMTBIT_FLOAT64_BE
,
3986 SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE
3987 | SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_BE
,
3990 /* Fix up the DAI formats for endianness: codecs don't actually see
3991 * the endianness of the data but we're using the CPU format
3992 * definitions which do need to include endianness so we ensure that
3993 * codec DAIs always have both big and little endian variants set.
3995 static void fixup_codec_formats(struct snd_soc_pcm_stream
*stream
)
3999 for (i
= 0; i
< ARRAY_SIZE(codec_format_map
); i
++)
4000 if (stream
->formats
& codec_format_map
[i
])
4001 stream
->formats
|= codec_format_map
[i
];
4005 * snd_soc_register_codec - Register a codec with the ASoC core
4007 * @codec: codec to register
4009 int snd_soc_register_codec(struct device
*dev
,
4010 const struct snd_soc_codec_driver
*codec_drv
,
4011 struct snd_soc_dai_driver
*dai_drv
,
4015 struct snd_soc_codec
*codec
;
4018 dev_dbg(dev
, "codec register %s\n", dev_name(dev
));
4020 codec
= kzalloc(sizeof(struct snd_soc_codec
), GFP_KERNEL
);
4024 /* create CODEC component name */
4025 codec
->name
= fmt_single_name(dev
, &codec
->id
);
4026 if (codec
->name
== NULL
) {
4031 if (codec_drv
->compress_type
)
4032 codec
->compress_type
= codec_drv
->compress_type
;
4034 codec
->compress_type
= SND_SOC_FLAT_COMPRESSION
;
4036 codec
->write
= codec_drv
->write
;
4037 codec
->read
= codec_drv
->read
;
4038 codec
->volatile_register
= codec_drv
->volatile_register
;
4039 codec
->readable_register
= codec_drv
->readable_register
;
4040 codec
->writable_register
= codec_drv
->writable_register
;
4041 codec
->ignore_pmdown_time
= codec_drv
->ignore_pmdown_time
;
4042 codec
->dapm
.bias_level
= SND_SOC_BIAS_OFF
;
4043 codec
->dapm
.dev
= dev
;
4044 codec
->dapm
.codec
= codec
;
4045 codec
->dapm
.seq_notifier
= codec_drv
->seq_notifier
;
4046 codec
->dapm
.stream_event
= codec_drv
->stream_event
;
4048 codec
->driver
= codec_drv
;
4049 codec
->num_dai
= num_dai
;
4050 mutex_init(&codec
->mutex
);
4052 /* allocate CODEC register cache */
4053 if (codec_drv
->reg_cache_size
&& codec_drv
->reg_word_size
) {
4054 reg_size
= codec_drv
->reg_cache_size
* codec_drv
->reg_word_size
;
4055 codec
->reg_size
= reg_size
;
4056 /* it is necessary to make a copy of the default register cache
4057 * because in the case of using a compression type that requires
4058 * the default register cache to be marked as the
4059 * kernel might have freed the array by the time we initialize
4062 if (codec_drv
->reg_cache_default
) {
4063 codec
->reg_def_copy
= kmemdup(codec_drv
->reg_cache_default
,
4064 reg_size
, GFP_KERNEL
);
4065 if (!codec
->reg_def_copy
) {
4072 if (codec_drv
->reg_access_size
&& codec_drv
->reg_access_default
) {
4073 if (!codec
->volatile_register
)
4074 codec
->volatile_register
= snd_soc_default_volatile_register
;
4075 if (!codec
->readable_register
)
4076 codec
->readable_register
= snd_soc_default_readable_register
;
4077 if (!codec
->writable_register
)
4078 codec
->writable_register
= snd_soc_default_writable_register
;
4081 for (i
= 0; i
< num_dai
; i
++) {
4082 fixup_codec_formats(&dai_drv
[i
].playback
);
4083 fixup_codec_formats(&dai_drv
[i
].capture
);
4086 mutex_lock(&client_mutex
);
4087 list_add(&codec
->list
, &codec_list
);
4088 mutex_unlock(&client_mutex
);
4090 /* register any DAIs */
4092 ret
= snd_soc_register_dais(dev
, dai_drv
, num_dai
);
4094 dev_err(codec
->dev
, "ASoC: Failed to regster"
4095 " DAIs: %d\n", ret
);
4098 dev_dbg(codec
->dev
, "ASoC: Registered codec '%s'\n", codec
->name
);
4106 EXPORT_SYMBOL_GPL(snd_soc_register_codec
);
4109 * snd_soc_unregister_codec - Unregister a codec from the ASoC core
4111 * @codec: codec to unregister
4113 void snd_soc_unregister_codec(struct device
*dev
)
4115 struct snd_soc_codec
*codec
;
4118 list_for_each_entry(codec
, &codec_list
, list
) {
4119 if (dev
== codec
->dev
)
4126 for (i
= 0; i
< codec
->num_dai
; i
++)
4127 snd_soc_unregister_dai(dev
);
4129 mutex_lock(&client_mutex
);
4130 list_del(&codec
->list
);
4131 mutex_unlock(&client_mutex
);
4133 dev_dbg(codec
->dev
, "ASoC: Unregistered codec '%s'\n", codec
->name
);
4135 snd_soc_cache_exit(codec
);
4136 kfree(codec
->reg_def_copy
);
4140 EXPORT_SYMBOL_GPL(snd_soc_unregister_codec
);
4142 /* Retrieve a card's name from device tree */
4143 int snd_soc_of_parse_card_name(struct snd_soc_card
*card
,
4144 const char *propname
)
4146 struct device_node
*np
= card
->dev
->of_node
;
4149 ret
= of_property_read_string_index(np
, propname
, 0, &card
->name
);
4151 * EINVAL means the property does not exist. This is fine providing
4152 * card->name was previously set, which is checked later in
4153 * snd_soc_register_card.
4155 if (ret
< 0 && ret
!= -EINVAL
) {
4157 "ASoC: Property '%s' could not be read: %d\n",
4164 EXPORT_SYMBOL_GPL(snd_soc_of_parse_card_name
);
4166 int snd_soc_of_parse_audio_routing(struct snd_soc_card
*card
,
4167 const char *propname
)
4169 struct device_node
*np
= card
->dev
->of_node
;
4171 struct snd_soc_dapm_route
*routes
;
4174 num_routes
= of_property_count_strings(np
, propname
);
4175 if (num_routes
< 0 || num_routes
& 1) {
4176 dev_err(card
->dev
, "ASoC: Property '%s' does not exist or its"
4177 " length is not even\n", propname
);
4182 dev_err(card
->dev
, "ASoC: Property '%s's length is zero\n",
4187 routes
= devm_kzalloc(card
->dev
, num_routes
* sizeof(*routes
),
4191 "ASoC: Could not allocate DAPM route table\n");
4195 for (i
= 0; i
< num_routes
; i
++) {
4196 ret
= of_property_read_string_index(np
, propname
,
4197 2 * i
, &routes
[i
].sink
);
4200 "ASoC: Property '%s' index %d could not be read: %d\n",
4201 propname
, 2 * i
, ret
);
4204 ret
= of_property_read_string_index(np
, propname
,
4205 (2 * i
) + 1, &routes
[i
].source
);
4208 "ASoC: Property '%s' index %d could not be read: %d\n",
4209 propname
, (2 * i
) + 1, ret
);
4214 card
->num_dapm_routes
= num_routes
;
4215 card
->dapm_routes
= routes
;
4219 EXPORT_SYMBOL_GPL(snd_soc_of_parse_audio_routing
);
4221 unsigned int snd_soc_of_parse_daifmt(struct device_node
*np
,
4226 unsigned int format
= 0;
4232 } of_fmt_table
[] = {
4233 { "i2s", SND_SOC_DAIFMT_I2S
},
4234 { "right_j", SND_SOC_DAIFMT_RIGHT_J
},
4235 { "left_j", SND_SOC_DAIFMT_LEFT_J
},
4236 { "dsp_a", SND_SOC_DAIFMT_DSP_A
},
4237 { "dsp_b", SND_SOC_DAIFMT_DSP_B
},
4238 { "ac97", SND_SOC_DAIFMT_AC97
},
4239 { "pdm", SND_SOC_DAIFMT_PDM
},
4240 { "msb", SND_SOC_DAIFMT_MSB
},
4241 { "lsb", SND_SOC_DAIFMT_LSB
},
4248 * check "[prefix]format = xxx"
4249 * SND_SOC_DAIFMT_FORMAT_MASK area
4251 snprintf(prop
, sizeof(prop
), "%sformat", prefix
);
4252 ret
= of_property_read_string(np
, prop
, &str
);
4254 for (i
= 0; i
< ARRAY_SIZE(of_fmt_table
); i
++) {
4255 if (strcmp(str
, of_fmt_table
[i
].name
) == 0) {
4256 format
|= of_fmt_table
[i
].val
;
4263 * check "[prefix]continuous-clock"
4264 * SND_SOC_DAIFMT_CLOCK_MASK area
4266 snprintf(prop
, sizeof(prop
), "%scontinuous-clock", prefix
);
4267 if (of_get_property(np
, prop
, NULL
))
4268 format
|= SND_SOC_DAIFMT_CONT
;
4270 format
|= SND_SOC_DAIFMT_GATED
;
4273 * check "[prefix]bitclock-inversion"
4274 * check "[prefix]frame-inversion"
4275 * SND_SOC_DAIFMT_INV_MASK area
4277 snprintf(prop
, sizeof(prop
), "%sbitclock-inversion", prefix
);
4278 bit
= !!of_get_property(np
, prop
, NULL
);
4280 snprintf(prop
, sizeof(prop
), "%sframe-inversion", prefix
);
4281 frame
= !!of_get_property(np
, prop
, NULL
);
4283 switch ((bit
<< 4) + frame
) {
4285 format
|= SND_SOC_DAIFMT_IB_IF
;
4288 format
|= SND_SOC_DAIFMT_IB_NF
;
4291 format
|= SND_SOC_DAIFMT_NB_IF
;
4294 /* SND_SOC_DAIFMT_NB_NF is default */
4299 * check "[prefix]bitclock-master"
4300 * check "[prefix]frame-master"
4301 * SND_SOC_DAIFMT_MASTER_MASK area
4303 snprintf(prop
, sizeof(prop
), "%sbitclock-master", prefix
);
4304 bit
= !!of_get_property(np
, prop
, NULL
);
4306 snprintf(prop
, sizeof(prop
), "%sframe-master", prefix
);
4307 frame
= !!of_get_property(np
, prop
, NULL
);
4309 switch ((bit
<< 4) + frame
) {
4311 format
|= SND_SOC_DAIFMT_CBM_CFM
;
4314 format
|= SND_SOC_DAIFMT_CBM_CFS
;
4317 format
|= SND_SOC_DAIFMT_CBS_CFM
;
4320 format
|= SND_SOC_DAIFMT_CBS_CFS
;
4326 EXPORT_SYMBOL_GPL(snd_soc_of_parse_daifmt
);
4328 static int __init
snd_soc_init(void)
4330 #ifdef CONFIG_DEBUG_FS
4331 snd_soc_debugfs_root
= debugfs_create_dir("asoc", NULL
);
4332 if (IS_ERR(snd_soc_debugfs_root
) || !snd_soc_debugfs_root
) {
4333 pr_warn("ASoC: Failed to create debugfs directory\n");
4334 snd_soc_debugfs_root
= NULL
;
4337 if (!debugfs_create_file("codecs", 0444, snd_soc_debugfs_root
, NULL
,
4339 pr_warn("ASoC: Failed to create CODEC list debugfs file\n");
4341 if (!debugfs_create_file("dais", 0444, snd_soc_debugfs_root
, NULL
,
4343 pr_warn("ASoC: Failed to create DAI list debugfs file\n");
4345 if (!debugfs_create_file("platforms", 0444, snd_soc_debugfs_root
, NULL
,
4346 &platform_list_fops
))
4347 pr_warn("ASoC: Failed to create platform list debugfs file\n");
4350 snd_soc_util_init();
4352 return platform_driver_register(&soc_driver
);
4354 module_init(snd_soc_init
);
4356 static void __exit
snd_soc_exit(void)
4358 snd_soc_util_exit();
4360 #ifdef CONFIG_DEBUG_FS
4361 debugfs_remove_recursive(snd_soc_debugfs_root
);
4363 platform_driver_unregister(&soc_driver
);
4365 module_exit(snd_soc_exit
);
4367 /* Module information */
4368 MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk");
4369 MODULE_DESCRIPTION("ALSA SoC Core");
4370 MODULE_LICENSE("GPL");
4371 MODULE_ALIAS("platform:soc-audio");