include/rtc.h

   1 /*
   2  * (C) Copyright 2001
   3  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
   4  *
   5  * SPDX-License-Identifier:     GPL-2.0+
   6  */
   7
   8 /*
   9  * Generic RTC interface.
  10  */
  11 #ifndef _RTC_H_
  12 #define _RTC_H_
  13
  14
  15 /*
  16  * The struct used to pass data from the generic interface code to
  17  * the hardware dependend low-level code ande vice versa. Identical
  18  * to struct rtc_time used by the Linux kernel.
  19  *
  20  * Note that there are small but significant differences to the
  21  * common "struct time":
  22  *
  23  *              struct time:            struct rtc_time:
  24  * tm_mon       0 ... 11                1 ... 12
  25  * tm_year      years since 1900        years since 0
  26  */
  27
  28 struct rtc_time {
  29         int tm_sec;
  30         int tm_min;
  31         int tm_hour;
  32         int tm_mday;
  33         int tm_mon;
  34         int tm_year;
  35         int tm_wday;
  36         int tm_yday;
  37         int tm_isdst;
  38 };
  39
  40 int rtc_get (struct rtc_time *);
  41 int rtc_set (struct rtc_time *);
  42
  43 void GregorianDay (struct rtc_time *);
  44 void to_tm (unsigned long, struct rtc_time *);
  45 unsigned long mktime (unsigned int, unsigned int, unsigned int,
  46                       unsigned int, unsigned int, unsigned int);
  47
  48 #endif  /* _RTC_H_ */