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-rw-r--r--include/linux/alarmtimer.h40
1 files changed, 40 insertions, 0 deletions
diff --git a/include/linux/alarmtimer.h b/include/linux/alarmtimer.h
new file mode 100644
index 00000000000..c5d6095b46f
--- /dev/null
+++ b/include/linux/alarmtimer.h
@@ -0,0 +1,40 @@
+#ifndef _LINUX_ALARMTIMER_H
+#define _LINUX_ALARMTIMER_H
+
+#include <linux/time.h>
+#include <linux/hrtimer.h>
+#include <linux/timerqueue.h>
+#include <linux/rtc.h>
+
+enum alarmtimer_type {
+ ALARM_REALTIME,
+ ALARM_BOOTTIME,
+
+ ALARM_NUMTYPE,
+};
+
+/**
+ * struct alarm - Alarm timer structure
+ * @node: timerqueue node for adding to the event list this value
+ * also includes the expiration time.
+ * @period: Period for recuring alarms
+ * @function: Function pointer to be executed when the timer fires.
+ * @type: Alarm type (BOOTTIME/REALTIME)
+ * @enabled: Flag that represents if the alarm is set to fire or not
+ * @data: Internal data value.
+ */
+struct alarm {
+ struct timerqueue_node node;
+ ktime_t period;
+ void (*function)(struct alarm *);
+ enum alarmtimer_type type;
+ bool enabled;
+ void *data;
+};
+
+void alarm_init(struct alarm *alarm, enum alarmtimer_type type,
+ void (*function)(struct alarm *));
+void alarm_start(struct alarm *alarm, ktime_t start, ktime_t period);
+void alarm_cancel(struct alarm *alarm);
+
+#endif