Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
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linux
1#ifndef _LINUX_ALARMTIMER_H
2#define _LINUX_ALARMTIMER_H
3
4#include <linux/time.h>
5#include <linux/hrtimer.h>
6#include <linux/timerqueue.h>
7#include <linux/rtc.h>
8
9enum alarmtimer_type {
10 ALARM_REALTIME,
11 ALARM_BOOTTIME,
12
13 ALARM_NUMTYPE,
14};
15
16/**
17 * struct alarm - Alarm timer structure
18 * @node: timerqueue node for adding to the event list this value
19 * also includes the expiration time.
20 * @period: Period for recuring alarms
21 * @function: Function pointer to be executed when the timer fires.
22 * @type: Alarm type (BOOTTIME/REALTIME)
23 * @enabled: Flag that represents if the alarm is set to fire or not
24 * @data: Internal data value.
25 */
26struct alarm {
27 struct timerqueue_node node;
28 ktime_t period;
29 void (*function)(struct alarm *);
30 enum alarmtimer_type type;
31 bool enabled;
32 void *data;
33};
34
35void alarm_init(struct alarm *alarm, enum alarmtimer_type type,
36 void (*function)(struct alarm *));
37void alarm_start(struct alarm *alarm, ktime_t start, ktime_t period);
38void alarm_cancel(struct alarm *alarm);
39
40#endif