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