[BACK]Return to mc146818rtc.h CVS log [TXT][DIR] Up to [Development] / linux-2.6-xfs / include / asm-mips / mach-generic
File: [Development] / linux-2.6-xfs / include / asm-mips / mach-generic / mc146818rtc.h (download)

Revision 1.2, Tue Mar 20 15:37:21 2007 UTC (10 years, 7 months ago) by tes.longdrop.melbourne.sgi.com
Branch: MAIN
CVS Tags: HEAD
Changes since 1.1: +1 -1 lines 

Merge up to 2.6.21-rc4
Merge of 2.6.x-xfs-melb:linux:28276b by kenmcd.

/*
 * This file is subject to the terms and conditions of the GNU General Public
 * License.  See the file "COPYING" in the main directory of this archive
 * for more details.
 *
 * Copyright (C) 1998, 2001, 03 by Ralf Baechle
 *
 * RTC routines for PC style attached Dallas chip.
 */
#ifndef __ASM_MACH_GENERIC_MC146818RTC_H
#define __ASM_MACH_GENERIC_MC146818RTC_H

#include <asm/io.h>

#define RTC_PORT(x)	(0x70 + (x))
#define RTC_IRQ		8

static inline unsigned char CMOS_READ(unsigned long addr)
{
	outb_p(addr, RTC_PORT(0));
	return inb_p(RTC_PORT(1));
}

static inline void CMOS_WRITE(unsigned char data, unsigned long addr)
{
	outb_p(addr, RTC_PORT(0));
	outb_p(data, RTC_PORT(1));
}

#define RTC_ALWAYS_BCD	1

#ifndef mc146818_decode_year
#define mc146818_decode_year(year) ((year) < 70 ? (year) + 2000 : (year) + 1900)
#endif

#endif /* __ASM_MACH_GENERIC_MC146818RTC_H */