xref: /openbmc/u-boot/include/rtc.h (revision 33b1d3f4)
1 /*
2  * (C) Copyright 2001
3  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
4  *
5  * See file CREDITS for list of people who contributed to this
6  * project.
7  *
8  * This program is free software; you can redistribute it and/or
9  * modify it under the terms of the GNU General Public License as
10  * published by the Free Software Foundation; either version 2 of
11  * the License, or (at your option) any later version.
12  *
13  * This program is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16  * GNU General Public License for more details.
17  *
18  * You should have received a copy of the GNU General Public License
19  * along with this program; if not, write to the Free Software
20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
21  * MA 02111-1307 USA
22  */
23 
24 /*
25  * Generic RTC interface.
26  */
27 #ifndef _RTC_H_
28 #define _RTC_H_
29 
30 /*
31  * The struct used to pass data from the generic interface code to
32  * the hardware dependend low-level code ande vice versa. Identical
33  * to struct rtc_time used by the Linux kernel.
34  *
35  * Note that there are small but significant differences to the
36  * common "struct time":
37  *
38  *		struct time:		struct rtc_time:
39  * tm_mon	0 ... 11		1 ... 12
40  * tm_year	years since 1900	years since 0
41  */
42 
43 struct rtc_time {
44 	int tm_sec;
45 	int tm_min;
46 	int tm_hour;
47 	int tm_mday;
48 	int tm_mon;
49 	int tm_year;
50 	int tm_wday;
51 	int tm_yday;
52 	int tm_isdst;
53 };
54 
55 int rtc_get (struct rtc_time *);
56 int rtc_set (struct rtc_time *);
57 void rtc_reset (void);
58 
59 void GregorianDay (struct rtc_time *);
60 void to_tm (int, struct rtc_time *);
61 unsigned long mktime (unsigned int, unsigned int, unsigned int,
62 		      unsigned int, unsigned int, unsigned int);
63 
64 #endif	/* _RTC_H_ */
65