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/* $OpenBSD: rtc.h,v 1.4 2000/01/24 16:02:04 espie Exp $ */
/* $NetBSD: rtc.h,v 1.5 1997/07/17 23:29:28 is Exp $ */
/*
* Copyright (c) 1994 Christian E. Hopps
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Christian E. Hopps.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* information on A2000 clock from Harald Backert.
* information on A3000 clock from Holger Emden.
*/
#ifndef _RTCVAR_H_
#define _RTCVAR_H_
/* this is a hook set by a clock driver for the configured realtime clock,
returning plain current unix-time */
time_t (*gettod) __P((void));
int (*settod) __P((time_t));
struct rtclock2000 {
u_int :28, second2:4; /* lower digit */
u_int :28, second1:4; /* upper digit */
u_int :28, minute2:4; /* lower digit */
u_int :28, minute1:4; /* upper digit */
u_int :28, hour2:4; /* lower digit */
u_int :28, hour1:4; /* upper digit */
u_int :28, day2:4; /* lower digit */
u_int :28, day1:4; /* upper digit */
u_int :28, month2:4; /* lower digit */
u_int :28, month1:4; /* upper digit */
u_int :28, year2:4; /* lower digit */
u_int :28, year1:4; /* upper digit */
u_int :28, weekday:4; /* weekday */
u_int :28, control1:4; /* control-byte 1 */
u_int :28, control2:4; /* control-byte 2 */
u_int :28, control3:4; /* control-byte 3 */
};
/*
* commands written to control1, HOLD before reading the clock,
* FREE after done reading.
*/
#define A2CONTROL1_HOLD (1<<0)
#define A2CONTROL1_BUSY (1<<1)
#define A2CONTROL3_24HMODE (1<<2)
#define A2HOUR1_PM (1<<2)
struct rtclock3000 {
u_int :28, second2:4; /* 0x03 lower digit */
u_int :28, second1:4; /* 0x07 upper digit */
u_int :28, minute2:4; /* 0x0b lower digit */
u_int :28, minute1:4; /* 0x0f upper digit */
u_int :28, hour2:4; /* 0x13 lower digit */
u_int :28, hour1:4; /* 0x17 upper digit */
u_int :28, weekday:4; /* 0x1b */
u_int :28, day2:4; /* 0x1f lower digit */
u_int :28, day1:4; /* 0x23 upper digit */
u_int :28, month2:4; /* 0x27 lower digit */
u_int :28, month1:4; /* 0x2b upper digit */
u_int :28, year2:4; /* 0x2f lower digit */
u_int :28, year1:4; /* 0x33 upper digit */
u_int :28, control1:4; /* 0x37 control-byte 1 */
u_int :28, control2:4; /* 0x3b control-byte 2 */
u_int :28, control3:4; /* 0x3f control-byte 3 */
};
#define A3CONTROL1_HOLD_CLOCK 0
#define A3CONTROL1_FREE_CLOCK 9
/* mode1 registers we use */
#define leapyear year2
#define A3BBC_SET_REG 0xe0
#define A3BBC_WRITE_REG 0xc2
#define A3BBC_READ_REG 0xc3
#define A3NUM_BBC_REGS 12
/*
* Our clock starts at 1/1/1970, but counts the years from 1900.
*/
#define STARTOFTIME 1970
#define CLOCK_BASE_YEAR 1900
#endif /* _RTCVAR_H_ */
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