1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (c) 2009, Oleksandr Tymoshenko <gonzo@FreeBSD.org>
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice unmodified, this list of conditions, and the following
12 * disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 */
29
30 /* $FreeBSD$ */
31
32 #ifndef __PCF2123REG_H__
33 #define __PCF2123REG_H__
34
35 /* Control and status */
36 #define PCF2123_REG_CTRL1 0x0
37 #define PCF2123_REG_CTRL2 0x1
38
39 /* Time and date */
40 #define PCF2123_REG_SECONDS 0x2
41 #define PCF2123_REG_MINUTES 0x3
42 #define PCF2123_REG_HOURS 0x4
43 #define PCF2123_REG_DAYS 0x5
44 #define PCF2123_REG_WEEKDAYS 0x6
45 #define PCF2123_REG_MONTHS 0x7
46 #define PCF2123_REG_YEARS 0x8
47
48 /* Alarm registers */
49 #define PCF2123_REG_MINUTE_ALARM 0x9
50 #define PCF2123_REG_HOUR_ALARM 0xA
51 #define PCF2123_REG_DAY_ALARM 0xB
52 #define PCF2123_REG_WEEKDAY_ALARM 0xC
53
54 /* Offset */
55 #define PCF2123_REG_OFFSET 0xD
56
57 /* Timer */
58 #define PCF2123_REG_TIMER_CLKOUT 0xE
59 #define PCF2123_REG_COUNTDOWN_TIMER 0xF
60
61 /* Commands */
62 #define PCF2123_CMD_READ (1 << 7)
63 #define PCF2123_CMD_WRITE (0 << 7)
64
65 #define PCF2123_READ(reg) (PCF2123_CMD_READ | (1 << 4) | (reg))
66 #define PCF2123_WRITE(reg) (PCF2123_CMD_WRITE | (1 << 4) | (reg))
67
68 #endif /* __PCF2123REG_H__ */
69
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