diff options
Diffstat (limited to 'include/sound/timer.h')
| -rw-r--r-- | include/sound/timer.h | 22 |
1 files changed, 17 insertions, 5 deletions
diff --git a/include/sound/timer.h b/include/sound/timer.h index ecd1c0f5785c..6640f04a7965 100644 --- a/include/sound/timer.h +++ b/include/sound/timer.h @@ -3,7 +3,8 @@ /* * Timer abstract layer - * Copyright (c) by Jaroslav Kysela <perex@suse.cz> + * Copyright (c) by Jaroslav Kysela <perex@suse.cz>, + * Abramo Bagnara <abramo@alsa-project.org> * * * This program is free software; you can redistribute it and/or modify @@ -29,11 +30,15 @@ typedef enum sndrv_timer_class snd_timer_class_t; typedef enum sndrv_timer_slave_class snd_timer_slave_class_t; typedef enum sndrv_timer_global snd_timer_global_t; typedef struct sndrv_timer_id snd_timer_id_t; +typedef struct sndrv_timer_ginfo snd_timer_ginfo_t; +typedef struct sndrv_timer_gparams snd_timer_gparams_t; +typedef struct sndrv_timer_gstatus snd_timer_gstatus_t; typedef struct sndrv_timer_select snd_timer_select_t; typedef struct sndrv_timer_info snd_timer_info_t; typedef struct sndrv_timer_params snd_timer_params_t; typedef struct sndrv_timer_status snd_timer_status_t; typedef struct sndrv_timer_read snd_timer_read_t; +typedef struct sndrv_timer_tread snd_timer_tread_t; #define _snd_timer_chip(timer) ((timer)->private_data) #define snd_timer_chip(timer) snd_magic_cast1(chip_t, _snd_timer_chip(timer), return -ENXIO) @@ -54,16 +59,21 @@ typedef struct sndrv_timer_read snd_timer_read_t; #define SNDRV_TIMER_IFLG_AUTO 0x00000008 /* auto restart */ #define SNDRV_TIMER_IFLG_FAST 0x00000010 /* fast callback (do not use tasklet) */ #define SNDRV_TIMER_IFLG_CALLBACK 0x00000020 /* timer callback is active */ +#define SNDRV_TIMER_IFLG_EXCLUSIVE 0x00000040 /* exclusive owner - no more instances */ #define SNDRV_TIMER_FLG_CHANGE 0x00000001 #define SNDRV_TIMER_FLG_RESCHED 0x00000002 /* need reschedule */ typedef void (*snd_timer_callback_t) (snd_timer_instance_t * timeri, unsigned long ticks, unsigned long resolution); +typedef void (*snd_timer_ccallback_t) (snd_timer_instance_t * timeri, enum sndrv_timer_event event, + struct timespec * tstamp, unsigned long resolution); 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) (snd_timer_t * timer); @@ -71,6 +81,8 @@ struct _snd_timer_hardware { unsigned long (*c_resolution) (snd_timer_t * timer); int (*start) (snd_timer_t * timer); int (*stop) (snd_timer_t * timer); + int (*set_period) (snd_timer_t * timer, unsigned long period_num, unsigned long period_den); + int (*precise_resolution) (snd_timer_t * timer, unsigned long *num, unsigned long *den); }; struct _snd_timer { @@ -102,6 +114,7 @@ struct _snd_timer_instance { void *private_data; void (*private_free) (snd_timer_instance_t *ti); snd_timer_callback_t callback; + snd_timer_ccallback_t ccallback; void *callback_data; unsigned long ticks; /* auto-load ticks when expired */ unsigned long cticks; /* current ticks */ @@ -123,20 +136,19 @@ struct _snd_timer_instance { */ extern int snd_timer_new(snd_card_t *card, char *id, snd_timer_id_t *tid, snd_timer_t ** rtimer); +extern void snd_timer_notify(snd_timer_t *timer, enum sndrv_timer_event event, struct timespec *tstamp); extern int snd_timer_global_new(char *id, int device, snd_timer_t **rtimer); extern int snd_timer_global_free(snd_timer_t *timer); extern int snd_timer_global_register(snd_timer_t *timer); extern int snd_timer_global_unregister(snd_timer_t *timer); -extern snd_timer_instance_t *snd_timer_open(char *owner, snd_timer_id_t *tid, unsigned int slave_id); +extern int snd_timer_open(snd_timer_instance_t ** ti, char *owner, snd_timer_id_t *tid, unsigned int slave_id); extern int snd_timer_close(snd_timer_instance_t * timeri); -extern int snd_timer_set_owner(snd_timer_instance_t * timeri, pid_t pid, gid_t gid); -extern int snd_timer_reset_owner(snd_timer_instance_t * timeri); -extern int snd_timer_set_resolution(snd_timer_instance_t * timeri, unsigned long resolution); extern unsigned long snd_timer_resolution(snd_timer_instance_t * timeri); extern int snd_timer_start(snd_timer_instance_t * timeri, unsigned int ticks); extern int snd_timer_stop(snd_timer_instance_t * timeri); extern int snd_timer_continue(snd_timer_instance_t * timeri); +extern int snd_timer_pause(snd_timer_instance_t * timeri); extern void snd_timer_interrupt(snd_timer_t * timer, unsigned long ticks_left); |