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 27 /* 28 * Maxim DS3231 RTC registers. 29 */ 30 31 #ifndef _DS3231REG_H_ 32 #define _DS3231REG_H_ 33 34 #define DS3231_SECS 0x00 35 #define DS3231_SECS_MASK 0x7f 36 #define DS3231_MINS 0x01 37 #define DS3231_MINS_MASK 0x7f 38 #define DS3231_HOUR 0x02 39 #define DS3231_HOUR_MASK_12HR 0x1f 40 #define DS3231_HOUR_MASK_24HR 0x3f 41 #define DS3231_HOUR_IS_PM 0x20 42 #define DS3231_HOUR_USE_AMPM 0x40 43 #define DS3231_WEEKDAY 0x03 44 #define DS3231_WEEKDAY_MASK 0x07 45 #define DS3231_DATE 0x04 46 #define DS3231_DATE_MASK 0x3f 47 #define DS3231_MONTH 0x05 48 #define DS3231_MONTH_MASK 0x1f 49 #define DS3231_C_MASK 0x80 50 #define DS3231_YEAR 0x06 51 #define DS3231_YEAR_MASK 0xff 52 #define DS3231_CONTROL 0x0e 53 #define DS3231_CTRL_EOSC (1 << 7) 54 #define DS3231_CTRL_BBSQW (1 << 6) 55 #define DS3231_CTRL_CONV (1 << 5) 56 #define DS3231_CTRL_RS2 (1 << 4) 57 #define DS3231_CTRL_RS1 (1 << 3) 58 #define DS3231_CTRL_RS_MASK (DS3231_CTRL_RS2 | DS3231_CTRL_RS1) 59 #define DS3231_CTRL_RS_SHIFT 3 60 #define DS3231_CTRL_INTCN (1 << 2) 61 #define DS3231_CTRL_A2IE (1 << 1) 62 #define DS3231_CTRL_A1IE (1 << 0) 63 #define DS3231_CTRL_MASK \ 64 (DS3231_CTRL_EOSC | DS3231_CTRL_A1IE | DS3231_CTRL_A2IE) 65 #define DS3231_STATUS 0x0f 66 #define DS3231_STATUS_OSF (1 << 7) 67 #define DS3231_STATUS_EN32KHZ (1 << 3) 68 #define DS3231_STATUS_BUSY (1 << 2) 69 #define DS3231_STATUS_A2F (1 << 1) 70 #define DS3231_STATUS_A1F (1 << 0) 71 #define DS3231_TEMP 0x11 72 #define DS3231_TEMP_MASK 0xffc0 73 #define DS3231_0500C 0x80 74 #define DS3231_0250C 0x40 75 #define DS3231_MSB 0x8000 76 #define DS3231_NEG_BIT DS3231_MSB 77 #define TZ_ZEROC 2731 78 79 #endif /* _DS3231REG_H_ */ 80