84 lines
2.7 KiB
C
84 lines
2.7 KiB
C
/* $NetBSD: rtc.h,v 1.2 2009/03/14 14:45:55 dsl Exp $ */
|
|
|
|
/*
|
|
* Copyright (c) 1994 Mark Brinicombe.
|
|
* Copyright (c) 1994 Brini.
|
|
* All rights reserved.
|
|
*
|
|
* This code is derived from software written for Brini by Mark Brinicombe
|
|
*
|
|
* 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 Brini.
|
|
* 4. The name of the company nor the name of the author may be used to
|
|
* endorse or promote products derived from this software without specific
|
|
* prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY BRINI ``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 BRINI OR CONTRIBUTORS 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.
|
|
*
|
|
* RiscBSD kernel project
|
|
*
|
|
* rtc.h
|
|
*
|
|
* Header file for RTC / CMOS stuff
|
|
*
|
|
* Created : 13/10/94
|
|
* Updated : 15/07/2000
|
|
*
|
|
* Based of kate/display/iiccontrol.c
|
|
*/
|
|
|
|
/*
|
|
* IIC addresses for RTC chip
|
|
* Two PCF8583 chips are supported on the IIC bus
|
|
*/
|
|
|
|
#define IIC_PCF8583_MASK 0xfc
|
|
#define IIC_PCF8583_ADDR 0xa0
|
|
|
|
#define RTC_Write (IIC_PCF8583_ADDR | IIC_WRITE)
|
|
#define RTC_Read (IIC_PCF8583_ADDR | IIC_READ)
|
|
|
|
typedef struct {
|
|
u_char rtc_micro;
|
|
u_char rtc_centi;
|
|
u_char rtc_sec;
|
|
u_char rtc_min;
|
|
u_char rtc_hour;
|
|
u_char rtc_day;
|
|
u_char rtc_mon;
|
|
u_char rtc_year;
|
|
u_char rtc_cen;
|
|
} rtc_t;
|
|
|
|
#define RTC_ADDR_CHECKSUM 0x3f
|
|
#define RTC_ADDR_BOOTOPTS 0x90
|
|
#define RTC_ADDR_REBOOTCNT 0x91
|
|
#define RTC_ADDR_YEAR 0xc0
|
|
#define RTC_ADDR_CENT 0xc1
|
|
|
|
#ifdef _KERNEL
|
|
int cmos_read(int);
|
|
int cmos_write(int, int);
|
|
#endif /* _KERNEL */
|
|
|
|
/* End of rtc.h */
|