projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| 8dfab1b8 WN |
1 | /*- |
| 2 | * Copyright (c) 1990 The Regents of the University of California. | |
| 3 | * All rights reserved. | |
| 4 | * | |
| 5 | * This code is derived from software contributed to Berkeley by | |
| 6 | * William Jolitz. | |
| 7 | * | |
| 8 | * %sccs.include.redist.c% | |
| 9 | * | |
| 187497c9 | 10 | * @(#)rtc.h 7.1 (Berkeley) %G% |
| 8dfab1b8 WN |
11 | */ |
| 12 | ||
| a1810a6d | 13 | /* |
| a1810a6d BJ |
14 | * RTC Register locations |
| 15 | */ | |
| 16 | ||
| 17 | #define RTC_SEC 0x00 /* seconds */ | |
| 18 | #define RTC_SECALRM 0x01 /* seconds alarm */ | |
| 19 | #define RTC_MIN 0x02 /* minutes */ | |
| 20 | #define RTC_MINALRM 0x03 /* minutes alarm */ | |
| 21 | #define RTC_HRS 0x04 /* hours */ | |
| 22 | #define RTC_HRSALRM 0x05 /* hours alarm */ | |
| 23 | #define RTC_WDAY 0x06 /* week day */ | |
| 24 | #define RTC_DAY 0x07 /* day of month */ | |
| 25 | #define RTC_MONTH 0x08 /* month of year */ | |
| 26 | #define RTC_YEAR 0x09 /* month of year */ | |
| 27 | #define RTC_STATUSA 0x0a /* status register A */ | |
| 8dfab1b8 WN |
28 | #define RTCSA_TUP 0x80 /* time update, don't look now */ |
| 29 | ||
| 30 | #define RTC_STATUSB 0x0b /* status register B */ | |
| 31 | ||
| 32 | #define RTC_INTR 0x0c /* status register C (R) interrupt source */ | |
| 33 | #define RTCIR_UPDATE 0x10 /* update intr */ | |
| 34 | #define RTCIR_ALARM 0x20 /* alarm intr */ | |
| 35 | #define RTCIR_PERIOD 0x40 /* periodic intr */ | |
| 36 | #define RTCIR_INT 0x80 /* interrupt output signal */ | |
| 37 | ||
| 38 | #define RTC_STATUSD 0x0d /* status register D (R) Lost Power */ | |
| 39 | #define RTCSD_PWR 0x80 /* clock lost power */ | |
| 40 | ||
| 41 | #define RTC_DIAG 0x0e /* status register E - bios diagnostic */ | |
| 187497c9 | 42 | #define RTCDG_BITS "\020\010clock_battery\007ROM_cksum\006config_unit\005memory_size\004fixed_disk\003invalid_time" |
| 8dfab1b8 WN |
43 | |
| 44 | #define RTC_RESET 0x0f /* status register F - reset code byte */ | |
| 45 | #define RTCRS_RST 0x00 /* normal reset */ | |
| 46 | #define RTCRS_LOAD 0x04 /* load system */ | |
| a1810a6d BJ |
47 | |
| 48 | #define RTC_BASELO 0x15 /* low byte of basemem size */ | |
| 49 | #define RTC_BASEHI 0x16 /* high byte of basemem size */ | |
| 50 | #define RTC_EXTLO 0x17 /* low byte of extended mem size */ | |
| 51 | #define RTC_EXTHI 0x18 /* low byte of extended mem size */ | |
| 8dfab1b8 WN |
52 | |
| 53 | #define RTC_CENTURY 0x32 /* current century - please increment in Dec99*/ |