| /* |
| * 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. |
| * |
| * mc146818rtc.h - register definitions for the Real-Time-Clock / CMOS RAM |
| * Copyright Torsten Duwe <duwe@informatik.uni-erlangen.de> 1993 |
| * derived from Data Sheet, Copyright Motorola 1984 (!). |
| * It was written to be part of the Linux operating system. |
| * |
| * Copyright (C) 1998, 1999 Ralf Baechle |
| */ |
| #ifndef _ASM_DS1286_h |
| #define _ASM_DS1286_h |
| |
| #include <asm/mc146818rtc.h> |
| |
| /********************************************************************** |
| * register summary |
| **********************************************************************/ |
| #define RTC_HUNDREDTH_SECOND 0 |
| #define RTC_SECONDS 1 |
| #define RTC_MINUTES 2 |
| #define RTC_MINUTES_ALARM 3 |
| #define RTC_HOURS 4 |
| #define RTC_HOURS_ALARM 5 |
| #define RTC_DAY 6 |
| #define RTC_DAY_ALARM 7 |
| #define RTC_DATE 8 |
| #define RTC_MONTH 9 |
| #define RTC_YEAR 10 |
| #define RTC_CMD 11 |
| #define RTC_WHSEC 12 |
| #define RTC_WSEC 13 |
| #define RTC_UNUSED 14 |
| |
| /* RTC_*_alarm is always true if 2 MSBs are set */ |
| # define RTC_ALARM_DONT_CARE 0xC0 |
| |
| |
| /* |
| * Bits in the month register |
| */ |
| #define RTC_EOSC 0x80 |
| #define RTC_ESQW 0x40 |
| |
| /* |
| * Bits in the Command register |
| */ |
| #define RTC_TDF 0x01 |
| #define RTC_WAF 0x02 |
| #define RTC_TDM 0x04 |
| #define RTC_WAM 0x08 |
| #define RTC_PU_LVL 0x10 |
| #define RTC_IBH_LO 0x20 |
| #define RTC_IPSW 0x40 |
| #define RTC_TE 0x80 |
| |
| /* |
| * Conversion between binary and BCD. |
| */ |
| #ifndef BCD_TO_BIN |
| #define BCD_TO_BIN(val) ((val)=((val)&15) + ((val)>>4)*10) |
| #endif |
| |
| #ifndef BIN_TO_BCD |
| #define BIN_TO_BCD(val) ((val)=(((val)/10)<<4) + (val)%10) |
| #endif |
| |
| #endif /* _ASM_DS1286_h */ |
