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Name	Size	Permission	Date
ac97	[ DIR ]	drwxr-xr-x	2026-07-17 06:29
sof	[ DIR ]	drwxr-xr-x	2026-07-17 06:29
ac97_codec.h	15.8 KB	-rw-r--r--	2024-03-10 20:38
aci.h	2.4 KB	-rw-r--r--	2024-03-10 20:38
acp63_chip_offset_byte.h	29.75 KB	-rw-r--r--	2024-03-10 20:38
ad1816a.h	4.73 KB	-rw-r--r--	2024-03-10 20:38
ad1843.h	1.48 KB	-rw-r--r--	2024-03-10 20:38
adau1373.h	706 B	-rw-r--r--	2024-03-10 20:38
ak4113.h	10.22 KB	-rw-r--r--	2024-03-10 20:38
ak4114.h	9.54 KB	-rw-r--r--	2024-03-10 20:38
ak4117.h	8.34 KB	-rw-r--r--	2024-03-10 20:38
ak4531_codec.h	2.42 KB	-rw-r--r--	2024-03-10 20:38
ak4641.h	476 B	-rw-r--r--	2024-03-10 20:38
ak4xxx-adda.h	2.66 KB	-rw-r--r--	2024-03-10 20:38
alc5623.h	536 B	-rw-r--r--	2024-03-10 20:38
asequencer.h	3.06 KB	-rw-r--r--	2024-03-10 20:38
asound.h	590 B	-rw-r--r--	2024-03-10 20:38
asoundef.h	16.02 KB	-rw-r--r--	2024-03-10 20:38
compress_driver.h	7.8 KB	-rw-r--r--	2024-03-10 20:38
control.h	10.73 KB	-rw-r--r--	2024-03-10 20:38
core.h	15.78 KB	-rw-r--r--	2024-03-10 20:38
cs35l33.h	888 B	-rw-r--r--	2024-03-10 20:38
cs35l34.h	741 B	-rw-r--r--	2024-03-10 20:38
cs35l35.h	2.21 KB	-rw-r--r--	2024-03-10 20:38
cs35l36.h	772 B	-rw-r--r--	2024-03-10 20:38
cs35l41.h	34.14 KB	-rw-r--r--	2024-03-10 20:38
cs35l56.h	10.47 KB	-rw-r--r--	2026-07-01 19:48
cs4231-regs.h	7.6 KB	-rw-r--r--	2024-03-10 20:38
cs4271.h	906 B	-rw-r--r--	2024-03-10 20:38
cs42l42.h	34.51 KB	-rw-r--r--	2024-03-10 20:38
cs42l43.h	385 B	-rw-r--r--	2024-03-10 20:38
cs42l52.h	592 B	-rw-r--r--	2024-03-10 20:38
cs42l56.h	1.02 KB	-rw-r--r--	2024-03-10 20:38
cs42l73.h	361 B	-rw-r--r--	2024-03-10 20:38
cs8403.h	7.95 KB	-rw-r--r--	2024-03-10 20:38
cs8427.h	9.72 KB	-rw-r--r--	2024-03-10 20:38
da7213.h	1.01 KB	-rw-r--r--	2024-03-10 20:38
da7218.h	2.41 KB	-rw-r--r--	2024-03-10 20:38
da7219-aad.h	2.37 KB	-rw-r--r--	2024-03-10 20:38
da7219.h	998 B	-rw-r--r--	2024-03-10 20:38
da9055.h	707 B	-rw-r--r--	2024-03-10 20:38
designware_i2s.h	1.66 KB	-rw-r--r--	2024-03-10 20:38
dmaengine_pcm.h	6.7 KB	-rw-r--r--	2026-07-01 19:48
emu10k1.h	93.94 KB	-rw-r--r--	2026-07-01 19:48
emu10k1_synth.h	693 B	-rw-r--r--	2024-03-10 20:38
emu8000.h	3.25 KB	-rw-r--r--	2024-03-10 20:38
emu8000_reg.h	9.54 KB	-rw-r--r--	2024-03-10 20:38
emux_legacy.h	4.7 KB	-rw-r--r--	2024-03-10 20:38
emux_synth.h	6.78 KB	-rw-r--r--	2024-03-10 20:38
es1688.h	2.85 KB	-rw-r--r--	2024-03-10 20:38
graph_card.h	1.04 KB	-rw-r--r--	2024-03-10 20:38
gus.h	19.65 KB	-rw-r--r--	2024-03-10 20:38
hda-mlink.h	6.13 KB	-rw-r--r--	2024-03-10 20:38
hda_chmap.h	2.6 KB	-rw-r--r--	2024-03-10 20:38
hda_codec.h	17.75 KB	-rw-r--r--	2026-07-01 19:48
hda_component.h	2.04 KB	-rw-r--r--	2024-03-10 20:38
hda_hwdep.h	736 B	-rw-r--r--	2024-03-10 20:38
hda_i915.h	589 B	-rw-r--r--	2024-03-10 20:38
hda_register.h	11.93 KB	-rw-r--r--	2024-03-10 20:38
hda_regmap.h	6.77 KB	-rw-r--r--	2024-03-10 20:38
hda_verbs.h	16.88 KB	-rw-r--r--	2024-03-10 20:38
hdaudio.h	24.4 KB	-rw-r--r--	2024-03-10 20:38
hdaudio_ext.h	4.59 KB	-rw-r--r--	2026-07-01 19:48
hdmi-codec.h	3.04 KB	-rw-r--r--	2024-03-10 20:38
hwdep.h	1.88 KB	-rw-r--r--	2024-03-10 20:38
i2c.h	2.79 KB	-rw-r--r--	2024-03-10 20:38
info.h	7.75 KB	-rw-r--r--	2024-03-10 20:38
initval.h	2.43 KB	-rw-r--r--	2024-03-10 20:38
intel-dsp-config.h	896 B	-rw-r--r--	2024-03-10 20:38
intel-nhlt.h	3.75 KB	-rw-r--r--	2024-03-10 20:38
jack.h	3.1 KB	-rw-r--r--	2024-03-10 20:38
madera-pdata.h	1.95 KB	-rw-r--r--	2024-03-10 20:38
max9768.h	544 B	-rw-r--r--	2024-03-10 20:38
max98088.h	1.05 KB	-rw-r--r--	2024-03-10 20:38
max98090.h	534 B	-rw-r--r--	2024-03-10 20:38
max98095.h	1.33 KB	-rw-r--r--	2024-03-10 20:38
memalloc.h	3.79 KB	-rw-r--r--	2024-03-10 20:38
minors.h	3.65 KB	-rw-r--r--	2024-03-10 20:38
mixer_oss.h	1.73 KB	-rw-r--r--	2024-03-10 20:38
mpu401.h	3.81 KB	-rw-r--r--	2024-03-10 20:38
omap-hdmi-audio.h	971 B	-rw-r--r--	2024-03-10 20:38
opl3.h	11.62 KB	-rw-r--r--	2024-03-10 20:38
opl4.h	459 B	-rw-r--r--	2024-03-10 20:38
pcm-indirect.h	5.18 KB	-rw-r--r--	2024-03-10 20:38
pcm.h	54.31 KB	-rw-r--r--	2026-07-01 19:48
pcm_drm_eld.h	183 B	-rw-r--r--	2024-03-10 20:38
pcm_iec958.h	597 B	-rw-r--r--	2024-03-10 20:38
pcm_oss.h	2.01 KB	-rw-r--r--	2024-03-10 20:38
pcm_params.h	8.72 KB	-rw-r--r--	2024-03-10 20:38
pt2258.h	513 B	-rw-r--r--	2024-03-10 20:38
pxa2xx-lib.h	2.25 KB	-rw-r--r--	2024-03-10 20:38
rawmidi.h	6.01 KB	-rw-r--r--	2024-03-10 20:38
rt1015.h	283 B	-rw-r--r--	2024-03-10 20:38
rt286.h	314 B	-rw-r--r--	2024-03-10 20:38
rt298.h	373 B	-rw-r--r--	2024-03-10 20:38
rt5514.h	399 B	-rw-r--r--	2024-03-10 20:38
rt5659.h	880 B	-rw-r--r--	2024-03-10 20:38
rt5660.h	578 B	-rw-r--r--	2024-03-10 20:38
rt5663.h	476 B	-rw-r--r--	2024-03-10 20:38
rt5665.h	723 B	-rw-r--r--	2024-03-10 20:38
rt5668.h	607 B	-rw-r--r--	2024-03-10 20:38
rt5682.h	862 B	-rw-r--r--	2024-03-10 20:38
rt5682s.h	1.01 KB	-rw-r--r--	2024-03-10 20:38
sb.h	10.3 KB	-rw-r--r--	2024-03-10 20:38
sb16_csp.h	2.05 KB	-rw-r--r--	2024-03-10 20:38
sdw.h	1.63 KB	-rw-r--r--	2024-03-10 20:38
seq_device.h	2.16 KB	-rw-r--r--	2024-03-10 20:38
seq_kernel.h	3.66 KB	-rw-r--r--	2024-03-10 20:38
seq_midi_emul.h	6.6 KB	-rw-r--r--	2024-03-10 20:38
seq_midi_event.h	1.32 KB	-rw-r--r--	2024-03-10 20:38
seq_oss.h	2.21 KB	-rw-r--r--	2024-03-10 20:38
seq_oss_legacy.h	360 B	-rw-r--r--	2024-03-10 20:38
seq_virmidi.h	2.07 KB	-rw-r--r--	2024-03-10 20:38
sh_dac_audio.h	441 B	-rw-r--r--	2024-03-10 20:38
sh_fsi.h	693 B	-rw-r--r--	2024-03-10 20:38
simple_card.h	524 B	-rw-r--r--	2024-03-10 20:38
simple_card_utils.h	8.69 KB	-rw-r--r--	2024-03-10 20:38
snd_wavefront.h	5.49 KB	-rw-r--r--	2026-07-01 19:48
soc-acpi-intel-match.h	2.5 KB	-rw-r--r--	2024-03-10 20:38
soc-acpi.h	7.01 KB	-rw-r--r--	2024-03-10 20:38
soc-card.h	3.56 KB	-rw-r--r--	2024-03-10 20:38
soc-component.h	20.11 KB	-rw-r--r--	2024-03-10 20:38
soc-dai.h	20.75 KB	-rw-r--r--	2024-03-10 20:38
soc-dapm.h	33.45 KB	-rw-r--r--	2024-03-10 20:38
soc-dpcm.h	5.56 KB	-rw-r--r--	2024-03-10 20:38
soc-jack.h	3.73 KB	-rw-r--r--	2024-03-10 20:38
soc-link.h	1.14 KB	-rw-r--r--	2024-03-10 20:38
soc-topology.h	5.74 KB	-rw-r--r--	2024-03-10 20:38
soc.h	53.84 KB	-rw-r--r--	2026-07-01 19:48
sof.h	4.54 KB	-rw-r--r--	2024-03-10 20:38
soundfont.h	3.81 KB	-rw-r--r--	2024-03-10 20:38
spear_dma.h	350 B	-rw-r--r--	2024-03-10 20:38
spear_spdif.h	345 B	-rw-r--r--	2024-03-10 20:38
sta32x.h	1015 B	-rw-r--r--	2024-03-10 20:38
sta350.h	1.44 KB	-rw-r--r--	2024-03-10 20:38
tas2552-plat.h	283 B	-rw-r--r--	2024-03-10 20:38
tas2781-dsp.h	4.85 KB	-rw-r--r--	2026-07-01 19:48
tas2781-tlv.h	579 B	-rw-r--r--	2026-07-01 19:48
tas2781.h	5.27 KB	-rw-r--r--	2026-07-01 19:48
tas5086.h	210 B	-rw-r--r--	2024-03-10 20:38
tea6330t.h	468 B	-rw-r--r--	2024-03-10 20:38
timer.h	4.99 KB	-rw-r--r--	2024-03-10 20:38
tlv.h	1.59 KB	-rw-r--r--	2024-03-10 20:38
tlv320aic32x4.h	1.29 KB	-rw-r--r--	2024-03-10 20:38
tlv320dac33-plat.h	574 B	-rw-r--r--	2024-03-10 20:38
tpa6130a2-plat.h	291 B	-rw-r--r--	2024-03-10 20:38
uda1380.h	335 B	-rw-r--r--	2024-03-10 20:38
ump.h	8.14 KB	-rw-r--r--	2026-07-01 19:48
ump_convert.h	1.25 KB	-rw-r--r--	2026-07-01 19:48
ump_msg.h	13.81 KB	-rw-r--r--	2026-07-01 19:48
util_mem.h	1.58 KB	-rw-r--r--	2024-03-10 20:38
vx_core.h	14.7 KB	-rw-r--r--	2024-03-10 20:38
wavefront.h	16.32 KB	-rw-r--r--	2024-03-10 20:38
wm0010.h	321 B	-rw-r--r--	2024-03-10 20:38
wm2000.h	479 B	-rw-r--r--	2024-03-10 20:38
wm2200.h	1.21 KB	-rw-r--r--	2024-03-10 20:38
wm5100.h	935 B	-rw-r--r--	2024-03-10 20:38
wm8903.h	15.02 KB	-rw-r--r--	2024-03-10 20:38
wm8904.h	7.22 KB	-rw-r--r--	2024-03-10 20:38
wm8955.h	442 B	-rw-r--r--	2024-03-10 20:38
wm8960.h	888 B	-rw-r--r--	2024-03-10 20:38
wm8962.h	1.65 KB	-rw-r--r--	2024-03-10 20:38
wm8993.h	1.05 KB	-rw-r--r--	2024-03-10 20:38
wm8996.h	1.19 KB	-rw-r--r--	2024-03-10 20:38
wm9081.h	515 B	-rw-r--r--	2024-03-10 20:38
wm9090.h	634 B	-rw-r--r--	2024-03-10 20:38
wss.h	7.76 KB	-rw-r--r--	2024-03-10 20:38

Rename

/* SPDX-License-Identifier: GPL-2.0
 *
 * linux/sound/soc-dpcm.h -- ALSA SoC Dynamic PCM Support
 *
 * Author:		Liam Girdwood <lrg@ti.com>
 */

#ifndef __LINUX_SND_SOC_DPCM_H
#define __LINUX_SND_SOC_DPCM_H

#include <linux/slab.h>
#include <linux/list.h>
#include <sound/pcm.h>

struct snd_soc_pcm_runtime;

/*
 * Types of runtime_update to perform. e.g. originated from FE PCM ops
 * or audio route changes triggered by muxes/mixers.
 */
enum snd_soc_dpcm_update {
	SND_SOC_DPCM_UPDATE_NO	= 0,
	SND_SOC_DPCM_UPDATE_BE,
	SND_SOC_DPCM_UPDATE_FE,
};

/*
 * Dynamic PCM Frontend -> Backend link management states.
 */
enum snd_soc_dpcm_link_state {
	SND_SOC_DPCM_LINK_STATE_NEW	= 0,	/* newly created link */
	SND_SOC_DPCM_LINK_STATE_FREE,		/* link to be dismantled */
};

/*
 * Dynamic PCM Frontend -> Backend link PCM states.
 */
enum snd_soc_dpcm_state {
	SND_SOC_DPCM_STATE_NEW	= 0,
	SND_SOC_DPCM_STATE_OPEN,
	SND_SOC_DPCM_STATE_HW_PARAMS,
	SND_SOC_DPCM_STATE_PREPARE,
	SND_SOC_DPCM_STATE_START,
	SND_SOC_DPCM_STATE_STOP,
	SND_SOC_DPCM_STATE_PAUSED,
	SND_SOC_DPCM_STATE_SUSPEND,
	SND_SOC_DPCM_STATE_HW_FREE,
	SND_SOC_DPCM_STATE_CLOSE,
};

/*
 * Dynamic PCM trigger ordering. Triggering flexibility is required as some
 * DSPs require triggering before/after their CPU platform and DAIs.
 *
 * i.e. some clients may want to manually order this call in their PCM
 * trigger() whilst others will just use the regular core ordering.
 */
enum snd_soc_dpcm_trigger {
	SND_SOC_DPCM_TRIGGER_PRE		= 0,
	SND_SOC_DPCM_TRIGGER_POST,
	SND_SOC_DPCM_TRIGGER_BESPOKE,
};

/*
 * Dynamic PCM link
 * This links together a FE and BE DAI at runtime and stores the link
 * state information and the hw_params configuration.
 */
struct snd_soc_dpcm {
	/* FE and BE DAIs*/
	struct snd_soc_pcm_runtime *be;
	struct snd_soc_pcm_runtime *fe;

/* link state */
	enum snd_soc_dpcm_link_state state;

/* list of BE and FE for this DPCM link */
	struct list_head list_be;
	struct list_head list_fe;

#ifdef CONFIG_DEBUG_FS
	struct dentry *debugfs_state;
#endif
};

/*
 * Dynamic PCM runtime data.
 */
struct snd_soc_dpcm_runtime {
	struct list_head be_clients;
	struct list_head fe_clients;

int users;
	struct snd_pcm_hw_params hw_params;

/* state and update */
	enum snd_soc_dpcm_update runtime_update;
	enum snd_soc_dpcm_state state;

int trigger_pending; /* trigger cmd + 1 if pending, 0 if not */

int be_start; /* refcount protected by BE stream pcm lock */
	int be_pause; /* refcount protected by BE stream pcm lock */
	bool fe_pause; /* used to track STOP after PAUSE */
};

#define for_each_dpcm_fe(be, stream, _dpcm)				\
	list_for_each_entry(_dpcm, &(be)->dpcm[stream].fe_clients, list_fe)

#define for_each_dpcm_be(fe, stream, _dpcm)				\
	list_for_each_entry(_dpcm, &(fe)->dpcm[stream].be_clients, list_be)
#define for_each_dpcm_be_safe(fe, stream, _dpcm, __dpcm)			\
	list_for_each_entry_safe(_dpcm, __dpcm, &(fe)->dpcm[stream].be_clients, list_be)
#define for_each_dpcm_be_rollback(fe, stream, _dpcm)			\
	list_for_each_entry_continue_reverse(_dpcm, &(fe)->dpcm[stream].be_clients, list_be)

/* can this BE stop and free */
int snd_soc_dpcm_can_be_free_stop(struct snd_soc_pcm_runtime *fe,
		struct snd_soc_pcm_runtime *be, int stream);

/* can this BE perform a hw_params() */
int snd_soc_dpcm_can_be_params(struct snd_soc_pcm_runtime *fe,
		struct snd_soc_pcm_runtime *be, int stream);

/* can this BE perform prepare */
int snd_soc_dpcm_can_be_prepared(struct snd_soc_pcm_runtime *fe,
				 struct snd_soc_pcm_runtime *be, int stream);

/* is the current PCM operation for this FE ? */
int snd_soc_dpcm_fe_can_update(struct snd_soc_pcm_runtime *fe, int stream);

/* is the current PCM operation for this BE ? */
int snd_soc_dpcm_be_can_update(struct snd_soc_pcm_runtime *fe,
		struct snd_soc_pcm_runtime *be, int stream);

/* get the substream for this BE */
struct snd_pcm_substream *
	snd_soc_dpcm_get_substream(struct snd_soc_pcm_runtime *be, int stream);

/* update audio routing between PCMs and any DAI links */
int snd_soc_dpcm_runtime_update(struct snd_soc_card *card);

#ifdef CONFIG_DEBUG_FS
void soc_dpcm_debugfs_add(struct snd_soc_pcm_runtime *rtd);
#else
static inline void soc_dpcm_debugfs_add(struct snd_soc_pcm_runtime *rtd)
{
}
#endif

int dpcm_path_get(struct snd_soc_pcm_runtime *fe,
	int stream, struct snd_soc_dapm_widget_list **list_);
void dpcm_path_put(struct snd_soc_dapm_widget_list **list);
int dpcm_process_paths(struct snd_soc_pcm_runtime *fe,
	int stream, struct snd_soc_dapm_widget_list **list, int new);
int dpcm_be_dai_startup(struct snd_soc_pcm_runtime *fe, int stream);
void dpcm_be_dai_stop(struct snd_soc_pcm_runtime *fe, int stream,
		      int do_hw_free, struct snd_soc_dpcm *last);
void dpcm_be_disconnect(struct snd_soc_pcm_runtime *fe, int stream);
void dpcm_clear_pending_state(struct snd_soc_pcm_runtime *fe, int stream);
void dpcm_be_dai_hw_free(struct snd_soc_pcm_runtime *fe, int stream);
int dpcm_be_dai_hw_params(struct snd_soc_pcm_runtime *fe, int tream);
int dpcm_be_dai_trigger(struct snd_soc_pcm_runtime *fe, int stream, int cmd);
int dpcm_be_dai_prepare(struct snd_soc_pcm_runtime *fe, int stream);
int dpcm_dapm_stream_event(struct snd_soc_pcm_runtime *fe, int dir,
	int event);
bool dpcm_end_walk_at_be(struct snd_soc_dapm_widget *widget, enum snd_soc_dapm_direction dir);
int widget_in_list(struct snd_soc_dapm_widget_list *list,
		   struct snd_soc_dapm_widget *widget);

#define dpcm_be_dai_startup_rollback(fe, stream, last)	\
						dpcm_be_dai_stop(fe, stream, 0, last)
#define dpcm_be_dai_startup_unwind(fe, stream)	dpcm_be_dai_stop(fe, stream, 0, NULL)
#define dpcm_be_dai_shutdown(fe, stream)	dpcm_be_dai_stop(fe, stream, 1, NULL)

#endif