diff --git a/include/linux/alarmtimer.h b/include/linux/alarmtimer.h
new file mode 100644
index 0000000..7d9a6cf
--- /dev/null
+++ b/include/linux/alarmtimer.h
@@ -0,0 +1,60 @@
+#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,
+};
+
+enum alarmtimer_restart {
+	ALARMTIMER_NORESTART,
+	ALARMTIMER_RESTART,
+};
+
+
+#define ALARMTIMER_STATE_INACTIVE	0x00
+#define ALARMTIMER_STATE_ENQUEUED	0x01
+#define ALARMTIMER_STATE_CALLBACK	0x02
+
+struct alarm {
+	struct timerqueue_node	node;
+	enum alarmtimer_restart	(*function)(struct alarm *, ktime_t now);
+	enum alarmtimer_type	type;
+	int			state;
+	void			*data;
+};
+
+void alarm_init(struct alarm *alarm, enum alarmtimer_type type,
+		enum alarmtimer_restart (*function)(struct alarm *, ktime_t));
+void alarm_start(struct alarm *alarm, ktime_t start);
+int alarm_try_to_cancel(struct alarm *alarm);
+int alarm_cancel(struct alarm *alarm);
+
+u64 alarm_forward(struct alarm *alarm, ktime_t now, ktime_t interval);
+
+static inline int alarmtimer_active(const struct alarm *timer)
+{
+	return timer->state != ALARMTIMER_STATE_INACTIVE;
+}
+
+static inline int alarmtimer_is_queued(struct alarm *timer)
+{
+	return timer->state & ALARMTIMER_STATE_ENQUEUED;
+}
+
+static inline int alarmtimer_callback_running(struct alarm *timer)
+{
+	return timer->state & ALARMTIMER_STATE_CALLBACK;
+}
+
+
+struct rtc_device *alarmtimer_get_rtcdev(void);
+
+#endif