include/asm-arm/rtc.h

   1 /*
   2  *  linux/include/asm-arm/rtc.h
   3  *
   4  *  Copyright (C) 2003 Deep Blue Solutions Ltd.
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2 as
   8  * published by the Free Software Foundation.
   9  */
  10 #ifndef ASMARM_RTC_H
  11 #define ASMARM_RTC_H
  12
  13 struct module;
  14
  15 struct rtc_ops {
  16         struct module   *owner;
  17         int             (*open)(void);
  18         void            (*release)(void);
  19         int             (*ioctl)(unsigned int, unsigned long);
  20
  21         int             (*read_time)(struct rtc_time *);
  22         int             (*set_time)(struct rtc_time *);
  23         int             (*read_alarm)(struct rtc_wkalrm *);
  24         int             (*set_alarm)(struct rtc_wkalrm *);
  25         int             (*proc)(char *buf);
  26 };
  27
  28 void rtc_next_alarm_time(struct rtc_time *, struct rtc_time *, struct rtc_time *);
  29 void rtc_update(unsigned long, unsigned long);
  30 int register_rtc(struct rtc_ops *);
  31 void unregister_rtc(struct rtc_ops *);
  32
  33 static inline int rtc_periodic_alarm(struct rtc_time *tm)
  34 {
  35         return  (tm->tm_year == -1) ||
  36                 ((unsigned)tm->tm_mon >= 12) ||
  37                 ((unsigned)(tm->tm_mday - 1) >= 31) ||
  38                 ((unsigned)tm->tm_hour > 23) ||
  39                 ((unsigned)tm->tm_min > 59) ||
  40                 ((unsigned)tm->tm_sec > 59);
  41 }
  42
  43 #endif