clockevents_program

Name:lockevents_program_event - Reprogram the clock event device.*@dev: device to program*@expires: absolute expiry time (monotonic clock)*@force: program minimum delay if expires can not be set* Returns 0 on success, -ETIME when the event is in the past.

Proto:int clockevents_program_event(struct clock_event_device *dev, ktime_t expires, bool force)

Type:int

Parameter:

Type	Parameter	Name
struct clock_event_device *	dev
ktime_t	expires
bool	force

310

If WARN_ON_ONCE(expires < 0) Then Return -ETIME

313

next_event = expires

315

If clockevent_state_shutdown(dev) Then Return 0

319

WARN_ONCE(!clockevent_state_oneshot(dev), "Current state: %d\n", clockevent_get_state(dev))

323

If features & CLOCK_EVT_FEAT_KTIME Then Return set_next_ktime(expires, dev)

326

delta = Convert ktime_t to nanoseconds

327

If delta <= 0 Then Return If force Then lockevents_program_min_delta - Set clock event device to the minimum delay.*@dev: device to program* Returns 0 on success, -ETIME when the retry loop failed. Else -ETIME

330

delta = min - return minimum of two values of the same or compatible types*@x: first value*@y: second value(delta, (int64_t)max_delta_ns)

331

delta = max - return maximum of two values of the same or compatible types*@x: first value*@y: second value(delta, (int64_t)min_delta_ns)

333

clc = delta * mult >> shift

334

rc = set_next_event((unsignedlong)clc, dev)

336

Return If rc && force Then lockevents_program_min_delta - Set clock event device to the minimum delay.*@dev: device to program* Returns 0 on success, -ETIME when the retry loop failed. Else rc

**Caller**
Name	Describe
__clockevents_update_freq
tick_handle_periodic	Event handler for periodic ticks
tick_setup_periodic	Setup the device for a periodic tick
tick_handle_periodic_broadcast	Event handler for periodic broadcast ticks
tick_program_event	k_program_event
tick_resume_oneshot	k_resume_onshot - resume oneshot mode
tick_setup_oneshot	k_setup_oneshot - setup the event device for oneshot mode (hres or nohz)

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Function report