1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2009, Oleksandr Tymoshenko <[email protected]> 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