xref: /linux/include/linux/rtc/ds1286.h (revision f26e8817b235d8764363bffcc9cbfc61867371f2)
1 /*
2  * Copyright (C) 1998, 1999, 2003 Ralf Baechle
3  *
4  * This file is subject to the terms and conditions of the GNU General Public
5  * License.  See the file "COPYING" in the main directory of this archive
6  * for more details.
7  */
8 #ifndef __LINUX_DS1286_H
9 #define __LINUX_DS1286_H
10 
11 /**********************************************************************
12  * register summary
13  **********************************************************************/
14 #define RTC_HUNDREDTH_SECOND	0
15 #define RTC_SECONDS		1
16 #define RTC_MINUTES		2
17 #define RTC_MINUTES_ALARM	3
18 #define RTC_HOURS		4
19 #define RTC_HOURS_ALARM		5
20 #define RTC_DAY			6
21 #define RTC_DAY_ALARM		7
22 #define RTC_DATE		8
23 #define RTC_MONTH		9
24 #define RTC_YEAR		10
25 #define RTC_CMD			11
26 #define RTC_WHSEC		12
27 #define RTC_WSEC		13
28 #define RTC_UNUSED		14
29 
30 /* RTC_*_alarm is always true if 2 MSBs are set */
31 # define RTC_ALARM_DONT_CARE 	0xC0
32 
33 
34 /*
35  * Bits in the month register
36  */
37 #define RTC_EOSC		0x80
38 #define RTC_ESQW		0x40
39 
40 /*
41  * Bits in the Command register
42  */
43 #define RTC_TDF			0x01
44 #define RTC_WAF			0x02
45 #define RTC_TDM			0x04
46 #define RTC_WAM			0x08
47 #define RTC_PU_LVL		0x10
48 #define RTC_IBH_LO		0x20
49 #define RTC_IPSW		0x40
50 #define RTC_TE			0x80
51 
52 #endif /* __LINUX_DS1286_H */
53