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Clock Event Timer (clockevent)

Clock event timer.

Device Type​

DEVICE_TYPE_CLOCKEVENT

Structure​

struct clockevent_t {
    char * name;
    uint32_t mult, shift;
    uint64_t min_delta_ns, max_delta_ns;
    void * data;
    void (*handler)(struct clockevent_t * ce, void * data);
    int (*next)(struct clockevent_t * ce, uint64_t cycles);
    void * priv;
};

Key API​

FunctionDescription
search_clockevent(name)Find a clock event by name
register_clockevent(ce, drv)Register a clock event
unregister_clockevent(ce)Unregister a clock event
clockevent_set_event_handler(ce, handler, data)Set handler function
clockevent_set_event_next(ce, cycles)Set next trigger

Description​

Programmable timer event device. Uses scaling math to convert between counter ticks and nanoseconds.