drivers/staging/android/android_alarm.h

   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 #include <linux/compat.h>
  22
  23 enum android_alarm_type {
  24         /* return code bit numbers or set alarm arg */
  25         ANDROID_ALARM_RTC_WAKEUP,
  26         ANDROID_ALARM_RTC,
  27         ANDROID_ALARM_ELAPSED_REALTIME_WAKEUP,
  28         ANDROID_ALARM_ELAPSED_REALTIME,
  29         ANDROID_ALARM_SYSTEMTIME,
  30
  31         ANDROID_ALARM_TYPE_COUNT,
  32
  33         /* return code bit numbers */
  34         /* ANDROID_ALARM_TIME_CHANGE = 16 */
  35 };
  36
  37 enum android_alarm_return_flags {
  38         ANDROID_ALARM_RTC_WAKEUP_MASK = 1U << ANDROID_ALARM_RTC_WAKEUP,
  39         ANDROID_ALARM_RTC_MASK = 1U << ANDROID_ALARM_RTC,
  40         ANDROID_ALARM_ELAPSED_REALTIME_WAKEUP_MASK =
  41                                 1U << ANDROID_ALARM_ELAPSED_REALTIME_WAKEUP,
  42         ANDROID_ALARM_ELAPSED_REALTIME_MASK =
  43                                 1U << ANDROID_ALARM_ELAPSED_REALTIME,
  44         ANDROID_ALARM_SYSTEMTIME_MASK = 1U << ANDROID_ALARM_SYSTEMTIME,
  45         ANDROID_ALARM_TIME_CHANGE_MASK = 1U << 16
  46 };
  47
  48 /* Disable alarm */
  49 #define ANDROID_ALARM_CLEAR(type)           _IO('a', 0 | ((type) << 4))
  50
  51 /* Ack last alarm and wait for next */
  52 #define ANDROID_ALARM_WAIT                  _IO('a', 1)
  53
  54 #define ALARM_IOW(c, type, size)            _IOW('a', (c) | ((type) << 4), size)
  55 /* Set alarm */
  56 #define ANDROID_ALARM_SET(type)             ALARM_IOW(2, type, struct timespec)
  57 #define ANDROID_ALARM_SET_AND_WAIT(type)    ALARM_IOW(3, type, struct timespec)
  58 #define ANDROID_ALARM_GET_TIME(type)        ALARM_IOW(4, type, struct timespec)
  59 #define ANDROID_ALARM_SET_RTC               _IOW('a', 5, struct timespec)
  60 #define ANDROID_ALARM_BASE_CMD(cmd)         (cmd & ~(_IOC(0, 0, 0xf0, 0)))
  61 #define ANDROID_ALARM_IOCTL_TO_TYPE(cmd)    (_IOC_NR(cmd) >> 4)
  62
  63
  64 #ifdef CONFIG_COMPAT
  65 #define ANDROID_ALARM_SET_COMPAT(type)          ALARM_IOW(2, type, \
  66                                                         struct compat_timespec)
  67 #define ANDROID_ALARM_SET_AND_WAIT_COMPAT(type) ALARM_IOW(3, type, \
  68                                                         struct compat_timespec)
  69 #define ANDROID_ALARM_GET_TIME_COMPAT(type)     ALARM_IOW(4, type, \
  70                                                         struct compat_timespec)
  71 #define ANDROID_ALARM_SET_RTC_COMPAT            _IOW('a', 5, \
  72                                                         struct compat_timespec)
  73 #define ANDROID_ALARM_IOCTL_NR(cmd)             (_IOC_NR(cmd) & ((1<<4)-1))
  74 #define ANDROID_ALARM_COMPAT_TO_NORM(cmd)  \
  75                                 ALARM_IOW(ANDROID_ALARM_IOCTL_NR(cmd), \
  76                                         ANDROID_ALARM_IOCTL_TO_TYPE(cmd), \
  77                                         struct timespec)
  78
  79 #endif
  80
  81 #endif