blob: 370dfe77589d2abd9d8a963772fc79072feba5c0 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
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
13struct module;
14
15struct rtc_ops {
16 struct module *owner;
17 int (*open)(void);
18 void (*release)(void);
19 int (*ioctl)(unsigned int, unsigned long);
20
Russell Kingd5aa2072005-04-30 12:19:28 +010021 int (*read_time)(struct rtc_time *);
Linus Torvalds1da177e2005-04-16 15:20:36 -070022 int (*set_time)(struct rtc_time *);
Russell Kingd5aa2072005-04-30 12:19:28 +010023 int (*read_alarm)(struct rtc_wkalrm *);
Linus Torvalds1da177e2005-04-16 15:20:36 -070024 int (*set_alarm)(struct rtc_wkalrm *);
25 int (*proc)(char *buf);
26};
27
28void rtc_time_to_tm(unsigned long, struct rtc_time *);
29int rtc_tm_to_time(struct rtc_time *, unsigned long *);
30int rtc_valid_tm(struct rtc_time *);
31void rtc_next_alarm_time(struct rtc_time *, struct rtc_time *, struct rtc_time *);
32void rtc_update(unsigned long, unsigned long);
33int register_rtc(struct rtc_ops *);
34void unregister_rtc(struct rtc_ops *);
35
36static inline int rtc_periodic_alarm(struct rtc_time *tm)
37{
38 return (tm->tm_year == -1) ||
39 ((unsigned)tm->tm_mon >= 12) ||
40 ((unsigned)(tm->tm_mday - 1) >= 31) ||
41 ((unsigned)tm->tm_hour > 23) ||
42 ((unsigned)tm->tm_min > 59) ||
43 ((unsigned)tm->tm_sec > 59);
44}
45
46#endif