68 lines
2.3 KiB
C
68 lines
2.3 KiB
C
/*-
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* Copyright (c) 2009, Oleksandr Tymoshenko <gonzo@FreeBSD.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice unmodified, this list of conditions, and the following
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* disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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/* $FreeBSD$ */
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#ifndef __PCF2123REG_H__
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#define __PCF2123REG_H__
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/* Control and status */
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#define PCF2123_REG_CTRL1 0x0
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#define PCF2123_REG_CTRL2 0x1
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/* Time and date */
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#define PCF2123_REG_SECONDS 0x2
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#define PCF2123_REG_MINUTES 0x3
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#define PCF2123_REG_HOURS 0x4
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#define PCF2123_REG_DAYS 0x5
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#define PCF2123_REG_WEEKDAYS 0x6
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#define PCF2123_REG_MONTHS 0x7
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#define PCF2123_REG_YEARS 0x8
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/* Alarm registers */
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#define PCF2123_REG_MINUTE_ALARM 0x9
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#define PCF2123_REG_HOUR_ALARM 0xA
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#define PCF2123_REG_DAY_ALARM 0xB
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#define PCF2123_REG_WEEKDAY_ALARM 0xC
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/* Offset */
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#define PCF2123_REG_OFFSET 0xD
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/* Timer */
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#define PCF2123_REG_TIMER_CLKOUT 0xE
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#define PCF2123_REG_COUNTDOWN_TIMER 0xF
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/* Commands */
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#define PCF2123_CMD_READ (1 << 7)
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#define PCF2123_CMD_WRITE (0 << 7)
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#define PCF2123_READ(reg) (PCF2123_CMD_READ | (1 << 4) | (reg))
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#define PCF2123_WRITE(reg) (PCF2123_CMD_WRITE | (1 << 4) | (reg))
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#endif /* __PCF2123REG_H__ */
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