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#ifndef __ALSA_TIMER_TYPES_H
#define __ALSA_TIMER_TYPES_H
/** timer identification structure */
typedef struct sndrv_timer_id snd_timer_id_t;
/** timer global info structure */
typedef struct sndrv_timer_ginfo snd_timer_ginfo_t;
/** timer global params structure */
typedef struct sndrv_timer_gparams snd_timer_gparams_t;
/** timer global status structure */
typedef struct sndrv_timer_gstatus snd_timer_gstatus_t;
/** timer info structure */
typedef struct sndrv_timer_info snd_timer_info_t;
/** timer params structure */
typedef struct sndrv_timer_params snd_timer_params_t;
/** timer status structure */
typedef struct sndrv_timer_status snd_timer_status_t;
/** timer master class */
typedef enum _snd_timer_class {
SND_TIMER_CLASS_NONE = -1, /**< invalid */
SND_TIMER_CLASS_SLAVE = 0, /**< slave timer */
SND_TIMER_CLASS_GLOBAL, /**< global timer */
SND_TIMER_CLASS_CARD, /**< card timer */
SND_TIMER_CLASS_PCM, /**< PCM timer */
SND_TIMER_CLASS_LAST = SND_TIMER_CLASS_PCM /**< last timer */
} snd_timer_class_t;
/** timer slave class */
typedef enum _snd_timer_slave_class {
SND_TIMER_SCLASS_NONE = 0, /**< none */
SND_TIMER_SCLASS_APPLICATION, /**< for internal use */
SND_TIMER_SCLASS_SEQUENCER, /**< sequencer timer */
SND_TIMER_SCLASS_OSS_SEQUENCER, /**< OSS sequencer timer */
SND_TIMER_SCLASS_LAST = SND_TIMER_SCLASS_OSS_SEQUENCER /**< last slave timer */
} snd_timer_slave_class_t;
/** timer read event identification */
typedef enum _snd_timer_event {
SND_TIMER_EVENT_RESOLUTION = 0, /* val = resolution in ns */
SND_TIMER_EVENT_TICK, /* val = ticks */
SND_TIMER_EVENT_START, /* val = resolution in ns */
SND_TIMER_EVENT_STOP, /* val = 0 */
SND_TIMER_EVENT_CONTINUE, /* val = resolution in ns */
SND_TIMER_EVENT_PAUSE, /* val = 0 */
SND_TIMER_EVENT_EARLY, /* val = 0 */
SND_TIMER_EVENT_SUSPEND, /* val = 0 */
SND_TIMER_EVENT_RESUME, /* val = resolution in ns */
/* master timer events for slave timer instances */
SND_TIMER_EVENT_MSTART = SND_TIMER_EVENT_START + 10,
SND_TIMER_EVENT_MSTOP = SND_TIMER_EVENT_STOP + 10,
SND_TIMER_EVENT_MCONTINUE = SND_TIMER_EVENT_CONTINUE + 10,
SND_TIMER_EVENT_MPAUSE = SND_TIMER_EVENT_PAUSE + 10,
SND_TIMER_EVENT_MSUSPEND = SND_TIMER_EVENT_SUSPEND + 10,
SND_TIMER_EVENT_MRESUME = SND_TIMER_EVENT_RESUME + 10
} snd_timer_event_t;
/** timer read structure */
typedef struct _snd_timer_read {
unsigned int resolution; /**< tick resolution in nanoseconds */
unsigned int ticks; /**< count of happened ticks */
} snd_timer_read_t;
/** timer tstamp + event read structure */
typedef struct _snd_timer_tread {
snd_timer_event_t event; /**< Timer event */
snd_htimestamp_t tstamp; /**< Time stamp of each event */
unsigned int val; /**< Event value */
} snd_timer_tread_t;
/** global timer - system */
#define SND_TIMER_GLOBAL_SYSTEM 0
/** global timer - RTC */
#define SND_TIMER_GLOBAL_RTC 1
/** global timer - HPET */
#define SND_TIMER_GLOBAL_HPET 2
/** timer open mode flag - non-blocking behaviour */
#define SND_TIMER_OPEN_NONBLOCK (1<<0)
/** use timestamps and event notification - enhanced read */
#define SND_TIMER_OPEN_TREAD (1<<1)
/** timer handle type */
typedef enum _snd_timer_type {
/** Kernel level HwDep */
SND_TIMER_TYPE_HW = 0,
/** Shared memory client timer (not yet implemented) */
SND_TIMER_TYPE_SHM,
/** INET client timer (not yet implemented) */
SND_TIMER_TYPE_INET
} snd_timer_type_t;
/** timer query handle */
typedef struct _snd_timer_query snd_timer_query_t;
/** timer handle */
typedef struct _snd_timer snd_timer_t;
#endif /* __ALSA_TIMER_TYPES_H */
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