1/* include/linux/android_alarm.h
2 *
3 * Copyright (C) 2006-2007 Google, Inc.
4 *
5 * This software is licensed under the terms of the GNU General Public
6 * License version 2, as published by the Free Software Foundation, and
7 * may be copied, distributed, and modified under those terms.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12 * GNU General Public License for more details.
13 *
14 */
15
16#ifndef _LINUX_ANDROID_ALARM_H
17#define _LINUX_ANDROID_ALARM_H
18
19#include <linux/ioctl.h>
20#include <linux/time.h>
21
22enum android_alarm_type {
23	/* return code bit numbers or set alarm arg */
24	ANDROID_ALARM_RTC_WAKEUP,
25	ANDROID_ALARM_RTC,
26	ANDROID_ALARM_ELAPSED_REALTIME_WAKEUP,
27	ANDROID_ALARM_ELAPSED_REALTIME,
28	ANDROID_ALARM_SYSTEMTIME,
29
30	ANDROID_ALARM_TYPE_COUNT,
31
32	/* return code bit numbers */
33	/* ANDROID_ALARM_TIME_CHANGE = 16 */
34};
35
36enum android_alarm_return_flags {
37	ANDROID_ALARM_RTC_WAKEUP_MASK = 1U << ANDROID_ALARM_RTC_WAKEUP,
38	ANDROID_ALARM_RTC_MASK = 1U << ANDROID_ALARM_RTC,
39	ANDROID_ALARM_ELAPSED_REALTIME_WAKEUP_MASK =
40				1U << ANDROID_ALARM_ELAPSED_REALTIME_WAKEUP,
41	ANDROID_ALARM_ELAPSED_REALTIME_MASK =
42				1U << ANDROID_ALARM_ELAPSED_REALTIME,
43	ANDROID_ALARM_SYSTEMTIME_MASK = 1U << ANDROID_ALARM_SYSTEMTIME,
44	ANDROID_ALARM_TIME_CHANGE_MASK = 1U << 16
45};
46
47/* Disable alarm */
48#define ANDROID_ALARM_CLEAR(type)           _IO('a', 0 | ((type) << 4))
49
50/* Ack last alarm and wait for next */
51#define ANDROID_ALARM_WAIT                  _IO('a', 1)
52
53#define ALARM_IOW(c, type, size)            _IOW('a', (c) | ((type) << 4), size)
54/* Set alarm */
55#define ANDROID_ALARM_SET(type)             ALARM_IOW(2, type, struct timespec)
56#define ANDROID_ALARM_SET_AND_WAIT(type)    ALARM_IOW(3, type, struct timespec)
57#define ANDROID_ALARM_GET_TIME(type)        ALARM_IOW(4, type, struct timespec)
58#define ANDROID_ALARM_SET_RTC               _IOW('a', 5, struct timespec)
59#define ANDROID_ALARM_BASE_CMD(cmd)         (cmd & ~(_IOC(0, 0, 0xf0, 0)))
60#define ANDROID_ALARM_IOCTL_TO_TYPE(cmd)    (_IOC_NR(cmd) >> 4)
61
62#endif
63