ds3231reg.h revision 323467 
1/*-
2 * Copyright (c) 2014-2015 Luiz Otavio O Souza <loos@FreeBSD.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 * $FreeBSD: stable/11/sys/dev/iicbus/ds3231reg.h 323467 2017-09-11 22:21:15Z ian $
27 */
28
29/*
30 * Maxim DS3231 RTC registers.
31 */
32
33#ifndef _DS3231REG_H_
34#define _DS3231REG_H_
35
36#define	DS3231_SECS		0x00
37#define	DS3231_SECS_MASK		0x7f
38#define	DS3231_MINS		0x01
39#define	DS3231_MINS_MASK		0x7f
40#define	DS3231_HOUR		0x02
41#define	DS3231_HOUR_MASK_12HR		0x3f
42#define	DS3231_HOUR_MASK_24HR		0x1f
43#define	DS3231_HOUR_IS_PM		0x20
44#define	DS3231_HOUR_USE_AMPM		0x40
45#define	DS3231_WEEKDAY		0x03
46#define	DS3231_WEEKDAY_MASK		0x07
47#define	DS3231_DATE		0x04
48#define	DS3231_DATE_MASK		0x3f
49#define	DS3231_MONTH		0x05
50#define	DS3231_MONTH_MASK		0x1f
51#define	DS3231_C_MASK			0x80
52#define	DS3231_YEAR		0x06
53#define	DS3231_YEAR_MASK		0xff
54#define	DS3231_CONTROL		0x0e
55#define	DS3231_CTRL_EOSC		(1 << 7)
56#define	DS3231_CTRL_BBSQW		(1 << 6)
57#define	DS3231_CTRL_CONV		(1 << 5)
58#define	DS3231_CTRL_RS2			(1 << 4)
59#define	DS3231_CTRL_RS1			(1 << 3)
60#define	DS3231_CTRL_RS_MASK		(DS3231_CTRL_RS2 | DS3231_CTRL_RS1)
61#define	DS3231_CTRL_RS_SHIFT		3
62#define	DS3231_CTRL_INTCN		(1 << 2)
63#define	DS3231_CTRL_A2IE		(1 << 1)
64#define	DS3231_CTRL_A1IE		(1 << 0)
65#define	DS3231_CTRL_MASK		\
66	(DS3231_CTRL_EOSC | DS3231_CTRL_A1IE | DS3231_CTRL_A2IE)
67#define	DS3231_STATUS		0x0f
68#define	DS3231_STATUS_OSF		(1 << 7)
69#define	DS3231_STATUS_EN32KHZ		(1 << 3)
70#define	DS3231_STATUS_BUSY		(1 << 2)
71#define	DS3231_STATUS_A2F		(1 << 1)
72#define	DS3231_STATUS_A1F		(1 << 0)
73#define	DS3231_TEMP		0x11
74#define	DS3231_TEMP_MASK		0xffc0
75#define	DS3231_0500C			0x80
76#define	DS3231_0250C			0x40
77#define	DS3231_MSB			0x8000
78#define	DS3231_NEG_BIT			DS3231_MSB
79#define	TZ_ZEROC			2731
80
81#endif	/* _DS3231REG_H_ */
82