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Name	Size	Permission	Date
ac97	[ DIR ]	drwxr-xr-x	2026-06-04 06:36
sof	[ DIR ]	drwxr-xr-x	2026-06-04 06:36
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--	2026-05-26 09:55
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--	2026-05-26 09:55
emu10k1.h	93.94 KB	-rw-r--r--	2026-05-26 09:55
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--	2026-05-26 09:55
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--	2026-05-26 09:55
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--	2026-05-26 09:55
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--	2026-05-26 09:55
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--	2026-05-26 09:55
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--	2026-05-26 09:55
tas2781-tlv.h	579 B	-rw-r--r--	2026-05-26 09:55
tas2781.h	5.27 KB	-rw-r--r--	2026-05-26 09:55
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--	2026-05-26 09:55
ump_convert.h	1.25 KB	-rw-r--r--	2026-05-26 09:55
ump_msg.h	13.81 KB	-rw-r--r--	2026-05-26 09:55
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-or-later */
#ifndef __SOUND_TIMER_H
#define __SOUND_TIMER_H

/*
 *  Timer abstract layer
 *  Copyright (c) by Jaroslav Kysela <perex@perex.cz>,
 *		     Abramo Bagnara <abramo@alsa-project.org>
 */

#include <sound/asound.h>
#include <linux/interrupt.h>

#define snd_timer_chip(timer) ((timer)->private_data)

#define SNDRV_TIMER_DEVICES	16

#define SNDRV_TIMER_DEV_FLG_PCM	0x10000000

#define SNDRV_TIMER_HW_AUTO	0x00000001	/* auto trigger is supported */
#define SNDRV_TIMER_HW_STOP	0x00000002	/* call stop before start */
#define SNDRV_TIMER_HW_SLAVE	0x00000004	/* only slave timer (variable resolution) */
#define SNDRV_TIMER_HW_FIRST	0x00000008	/* first tick can be incomplete */
#define SNDRV_TIMER_HW_WORK	0x00000010	/* timer is called from work */

#define SNDRV_TIMER_IFLG_SLAVE	  0x00000001
#define SNDRV_TIMER_IFLG_RUNNING  0x00000002
#define SNDRV_TIMER_IFLG_START	  0x00000004
#define SNDRV_TIMER_IFLG_AUTO	  0x00000008	/* auto restart */
#define SNDRV_TIMER_IFLG_FAST	  0x00000010	/* fast callback (do not use work) */
#define SNDRV_TIMER_IFLG_CALLBACK 0x00000020	/* timer callback is active */
#define SNDRV_TIMER_IFLG_EXCLUSIVE 0x00000040	/* exclusive owner - no more instances */
#define SNDRV_TIMER_IFLG_EARLY_EVENT 0x00000080	/* write early event to the poll queue */

#define SNDRV_TIMER_FLG_CHANGE	0x00000001
#define SNDRV_TIMER_FLG_RESCHED	0x00000002	/* need reschedule */

struct snd_timer;

struct snd_timer_hardware {
	/* -- must be filled with low-level driver */
	unsigned int flags;		/* various flags */
	unsigned long resolution;	/* average timer resolution for one tick in nsec */
	unsigned long resolution_min;	/* minimal resolution */
	unsigned long resolution_max;	/* maximal resolution */
	unsigned long ticks;		/* max timer ticks per interrupt */
	/* -- low-level functions -- */
	int (*open) (struct snd_timer * timer);
	int (*close) (struct snd_timer * timer);
	unsigned long (*c_resolution) (struct snd_timer * timer);
	int (*start) (struct snd_timer * timer);
	int (*stop) (struct snd_timer * timer);
	int (*set_period) (struct snd_timer * timer, unsigned long period_num, unsigned long period_den);
	int (*precise_resolution) (struct snd_timer * timer, unsigned long *num, unsigned long *den);
};

struct snd_timer {
	int tmr_class;
	struct snd_card *card;
	struct module *module;
	int tmr_device;
	int tmr_subdevice;
	char id[64];
	char name[80];
	unsigned int flags;
	int running;			/* running instances */
	unsigned long sticks;		/* schedule ticks */
	void *private_data;
	void (*private_free) (struct snd_timer *timer);
	struct snd_timer_hardware hw;
	spinlock_t lock;
	struct list_head device_list;
	struct list_head open_list_head;
	struct list_head active_list_head;
	struct list_head ack_list_head;
	struct list_head sack_list_head; /* slow ack list head */
	struct work_struct task_work;
	int max_instances;	/* upper limit of timer instances */
	int num_instances;	/* current number of timer instances */
};

struct snd_timer_instance {
	struct snd_timer *timer;
	char *owner;
	unsigned int flags;
	void *private_data;
	void (*private_free) (struct snd_timer_instance *ti);
	void (*callback) (struct snd_timer_instance *timeri,
			  unsigned long ticks, unsigned long resolution);
	void (*ccallback) (struct snd_timer_instance * timeri,
			   int event,
			   struct timespec64 * tstamp,
			   unsigned long resolution);
	void (*disconnect)(struct snd_timer_instance *timeri);
	void *callback_data;
	unsigned long ticks;		/* auto-load ticks when expired */
	unsigned long cticks;		/* current ticks */
	unsigned long pticks;		/* accumulated ticks for callback */
	unsigned long resolution;	/* current resolution for work */
	unsigned long lost;		/* lost ticks */
	int slave_class;
	unsigned int slave_id;
	struct list_head open_list;
	struct list_head active_list;
	struct list_head ack_list;
	struct list_head slave_list_head;
	struct list_head slave_active_head;
	struct snd_timer_instance *master;
};

/*
 *  Registering
 */

int snd_timer_new(struct snd_card *card, char *id, struct snd_timer_id *tid, struct snd_timer **rtimer);
void snd_timer_notify(struct snd_timer *timer, int event, struct timespec64 *tstamp);
int snd_timer_global_new(char *id, int device, struct snd_timer **rtimer);
int snd_timer_global_free(struct snd_timer *timer);
int snd_timer_global_register(struct snd_timer *timer);

struct snd_timer_instance *snd_timer_instance_new(const char *owner);
void snd_timer_instance_free(struct snd_timer_instance *timeri);
int snd_timer_open(struct snd_timer_instance *timeri, struct snd_timer_id *tid, unsigned int slave_id);
void snd_timer_close(struct snd_timer_instance *timeri);
unsigned long snd_timer_resolution(struct snd_timer_instance *timeri);
int snd_timer_start(struct snd_timer_instance *timeri, unsigned int ticks);
int snd_timer_stop(struct snd_timer_instance *timeri);
int snd_timer_continue(struct snd_timer_instance *timeri);
int snd_timer_pause(struct snd_timer_instance *timeri);

void snd_timer_interrupt(struct snd_timer *timer, unsigned long ticks_left);

#endif /* __SOUND_TIMER_H */