/* * 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 0 #ifndef mc146818_decode_year #define mc146818_decode_year(year) ((year) < 70 ? (year) + 2000 : (year) + 1900) #endif #endif /* __ASM_MACH_GENERIC_MC146818RTC_H */