1 #ifndef _LINUX_ALARMTIMER_H
2 #define _LINUX_ALARMTIMER_H
4 #include <linux/time.h>
5 #include <linux/hrtimer.h>
6 #include <linux/timerqueue.h>
16 enum alarmtimer_restart {
22 * struct alarm - Alarm timer structure
23 * @node: timerqueue node for adding to the event list this value
24 * also includes the expiration time.
25 * @period: Period for recuring alarms
26 * @function: Function pointer to be executed when the timer fires.
27 * @type: Alarm type (BOOTTIME/REALTIME)
28 * @enabled: Flag that represents if the alarm is set to fire or not
29 * @data: Internal data value.
32 struct timerqueue_node node;
34 enum alarmtimer_restart (*function)(struct alarm *, ktime_t now);
35 enum alarmtimer_type type;
40 void alarm_init(struct alarm *alarm, enum alarmtimer_type type,
41 enum alarmtimer_restart (*function)(struct alarm *, ktime_t));
42 void alarm_start(struct alarm *alarm, ktime_t start, ktime_t period);
43 void alarm_cancel(struct alarm *alarm);
45 u64 alarm_forward(struct alarm *alarm, ktime_t now, ktime_t interval);