1*d0b3c59bSPatrick Mooney /*- 2*d0b3c59bSPatrick Mooney * Copyright (c) 1990 The Regents of the University of California. 3*d0b3c59bSPatrick Mooney * All rights reserved. 4*d0b3c59bSPatrick Mooney * 5*d0b3c59bSPatrick Mooney * This code is derived from software contributed to Berkeley by 6*d0b3c59bSPatrick Mooney * William Jolitz. 7*d0b3c59bSPatrick Mooney * 8*d0b3c59bSPatrick Mooney * Redistribution and use in source and binary forms, with or without 9*d0b3c59bSPatrick Mooney * modification, are permitted provided that the following conditions 10*d0b3c59bSPatrick Mooney * are met: 11*d0b3c59bSPatrick Mooney * 1. Redistributions of source code must retain the above copyright 12*d0b3c59bSPatrick Mooney * notice, this list of conditions and the following disclaimer. 13*d0b3c59bSPatrick Mooney * 2. Redistributions in binary form must reproduce the above copyright 14*d0b3c59bSPatrick Mooney * notice, this list of conditions and the following disclaimer in the 15*d0b3c59bSPatrick Mooney * documentation and/or other materials provided with the distribution. 16*d0b3c59bSPatrick Mooney * 4. Neither the name of the University nor the names of its contributors 17*d0b3c59bSPatrick Mooney * may be used to endorse or promote products derived from this software 18*d0b3c59bSPatrick Mooney * without specific prior written permission. 19*d0b3c59bSPatrick Mooney * 20*d0b3c59bSPatrick Mooney * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21*d0b3c59bSPatrick Mooney * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22*d0b3c59bSPatrick Mooney * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23*d0b3c59bSPatrick Mooney * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24*d0b3c59bSPatrick Mooney * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25*d0b3c59bSPatrick Mooney * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26*d0b3c59bSPatrick Mooney * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27*d0b3c59bSPatrick Mooney * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28*d0b3c59bSPatrick Mooney * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29*d0b3c59bSPatrick Mooney * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30*d0b3c59bSPatrick Mooney * SUCH DAMAGE. 31*d0b3c59bSPatrick Mooney * 32*d0b3c59bSPatrick Mooney * from: @(#)rtc.h 7.1 (Berkeley) 5/12/91 33*d0b3c59bSPatrick Mooney * $FreeBSD$ 34*d0b3c59bSPatrick Mooney */ 35*d0b3c59bSPatrick Mooney 36*d0b3c59bSPatrick Mooney #ifndef _I386_ISA_RTC_H_ 37*d0b3c59bSPatrick Mooney #define _I386_ISA_RTC_H_ 1 38*d0b3c59bSPatrick Mooney 39*d0b3c59bSPatrick Mooney /* 40*d0b3c59bSPatrick Mooney * MC146818 RTC Register locations 41*d0b3c59bSPatrick Mooney */ 42*d0b3c59bSPatrick Mooney 43*d0b3c59bSPatrick Mooney #define RTC_SEC 0x00 /* seconds */ 44*d0b3c59bSPatrick Mooney #define RTC_SECALRM 0x01 /* seconds alarm */ 45*d0b3c59bSPatrick Mooney #define RTC_MIN 0x02 /* minutes */ 46*d0b3c59bSPatrick Mooney #define RTC_MINALRM 0x03 /* minutes alarm */ 47*d0b3c59bSPatrick Mooney #define RTC_HRS 0x04 /* hours */ 48*d0b3c59bSPatrick Mooney #define RTC_HRSALRM 0x05 /* hours alarm */ 49*d0b3c59bSPatrick Mooney #define RTC_WDAY 0x06 /* week day */ 50*d0b3c59bSPatrick Mooney #define RTC_DAY 0x07 /* day of month */ 51*d0b3c59bSPatrick Mooney #define RTC_MONTH 0x08 /* month of year */ 52*d0b3c59bSPatrick Mooney #define RTC_YEAR 0x09 /* month of year */ 53*d0b3c59bSPatrick Mooney 54*d0b3c59bSPatrick Mooney #define RTC_STATUSA 0x0a /* status register A */ 55*d0b3c59bSPatrick Mooney #define RTCSA_TUP 0x80 /* time update, don't look now */ 56*d0b3c59bSPatrick Mooney #define RTCSA_RESET 0x70 /* reset divider */ 57*d0b3c59bSPatrick Mooney #define RTCSA_DIVIDER 0x20 /* divider correct for 32768 Hz */ 58*d0b3c59bSPatrick Mooney #define RTCSA_8192 0x03 /* 8192 Hz interrupt */ 59*d0b3c59bSPatrick Mooney #define RTCSA_4096 0x04 60*d0b3c59bSPatrick Mooney #define RTCSA_2048 0x05 61*d0b3c59bSPatrick Mooney #define RTCSA_1024 0x06 /* default for profiling */ 62*d0b3c59bSPatrick Mooney #define RTCSA_PROF RTCSA_1024 63*d0b3c59bSPatrick Mooney #define RTC_PROFRATE 1024 64*d0b3c59bSPatrick Mooney #define RTCSA_512 0x07 65*d0b3c59bSPatrick Mooney #define RTCSA_256 0x08 66*d0b3c59bSPatrick Mooney #define RTCSA_128 0x09 67*d0b3c59bSPatrick Mooney #define RTCSA_NOPROF RTCSA_128 68*d0b3c59bSPatrick Mooney #define RTC_NOPROFRATE 128 69*d0b3c59bSPatrick Mooney #define RTCSA_64 0x0a 70*d0b3c59bSPatrick Mooney #define RTCSA_32 0x0b /* 32 Hz interrupt */ 71*d0b3c59bSPatrick Mooney 72*d0b3c59bSPatrick Mooney #define RTC_STATUSB 0x0b /* status register B */ 73*d0b3c59bSPatrick Mooney #define RTCSB_DST 0x01 /* USA Daylight Savings Time enable */ 74*d0b3c59bSPatrick Mooney #define RTCSB_24HR 0x02 /* 0 = 12 hours, 1 = 24 hours */ 75*d0b3c59bSPatrick Mooney #define RTCSB_BCD 0x04 /* 0 = BCD, 1 = Binary coded time */ 76*d0b3c59bSPatrick Mooney #define RTCSB_SQWE 0x08 /* 1 = output sqare wave at SQW pin */ 77*d0b3c59bSPatrick Mooney #define RTCSB_UINTR 0x10 /* 1 = enable update-ended interrupt */ 78*d0b3c59bSPatrick Mooney #define RTCSB_AINTR 0x20 /* 1 = enable alarm interrupt */ 79*d0b3c59bSPatrick Mooney #define RTCSB_PINTR 0x40 /* 1 = enable periodic clock interrupt */ 80*d0b3c59bSPatrick Mooney #define RTCSB_HALT 0x80 /* stop clock updates */ 81*d0b3c59bSPatrick Mooney 82*d0b3c59bSPatrick Mooney #define RTC_INTR 0x0c /* status register C (R) interrupt source */ 83*d0b3c59bSPatrick Mooney #define RTCIR_UPDATE 0x10 /* update intr */ 84*d0b3c59bSPatrick Mooney #define RTCIR_ALARM 0x20 /* alarm intr */ 85*d0b3c59bSPatrick Mooney #define RTCIR_PERIOD 0x40 /* periodic intr */ 86*d0b3c59bSPatrick Mooney #define RTCIR_INT 0x80 /* interrupt output signal */ 87*d0b3c59bSPatrick Mooney 88*d0b3c59bSPatrick Mooney #define RTC_STATUSD 0x0d /* status register D (R) Lost Power */ 89*d0b3c59bSPatrick Mooney #define RTCSD_PWR 0x80 /* clock power OK */ 90*d0b3c59bSPatrick Mooney 91*d0b3c59bSPatrick Mooney #define RTC_DIAG 0x0e /* status register E - bios diagnostic */ 92*d0b3c59bSPatrick Mooney #define RTCDG_BITS "\020\010clock_battery\007ROM_cksum\006config_unit\005memory_size\004fixed_disk\003invalid_time" 93*d0b3c59bSPatrick Mooney 94*d0b3c59bSPatrick Mooney #define RTC_RESET 0x0f /* status register F - reset code byte */ 95*d0b3c59bSPatrick Mooney #define RTCRS_RST 0x00 /* normal reset */ 96*d0b3c59bSPatrick Mooney #define RTCRS_LOAD 0x04 /* load system */ 97*d0b3c59bSPatrick Mooney 98*d0b3c59bSPatrick Mooney #define RTC_FDISKETTE 0x10 /* diskette drive type in upper/lower nibble */ 99*d0b3c59bSPatrick Mooney #define RTCFDT_NONE 0 /* none present */ 100*d0b3c59bSPatrick Mooney #define RTCFDT_360K 0x10 /* 360K */ 101*d0b3c59bSPatrick Mooney #define RTCFDT_12M 0x20 /* 1.2M */ 102*d0b3c59bSPatrick Mooney #define RTCFDT_720K 0x30 /* 720K */ 103*d0b3c59bSPatrick Mooney #define RTCFDT_144M 0x40 /* 1.44M */ 104*d0b3c59bSPatrick Mooney #define RTCFDT_288M_1 0x50 /* 2.88M, some BIOSes */ 105*d0b3c59bSPatrick Mooney #define RTCFDT_288M 0x60 /* 2.88M */ 106*d0b3c59bSPatrick Mooney 107*d0b3c59bSPatrick Mooney #define RTC_BASELO 0x15 /* low byte of basemem size */ 108*d0b3c59bSPatrick Mooney #define RTC_BASEHI 0x16 /* high byte of basemem size */ 109*d0b3c59bSPatrick Mooney #define RTC_EXTLO 0x17 /* low byte of extended mem size */ 110*d0b3c59bSPatrick Mooney #define RTC_EXTHI 0x18 /* low byte of extended mem size */ 111*d0b3c59bSPatrick Mooney 112*d0b3c59bSPatrick Mooney #define RTC_CENTURY 0x32 /* current century */ 113*d0b3c59bSPatrick Mooney 114*d0b3c59bSPatrick Mooney #ifdef __FreeBSD__ 115*d0b3c59bSPatrick Mooney #ifdef _KERNEL 116*d0b3c59bSPatrick Mooney extern struct mtx clock_lock; 117*d0b3c59bSPatrick Mooney extern int atrtcclock_disable; 118*d0b3c59bSPatrick Mooney int rtcin(int reg); 119*d0b3c59bSPatrick Mooney void atrtc_restore(void); 120*d0b3c59bSPatrick Mooney void writertc(int reg, u_char val); 121*d0b3c59bSPatrick Mooney void atrtc_set(struct timespec *ts); 122*d0b3c59bSPatrick Mooney #endif 123*d0b3c59bSPatrick Mooney #endif 124*d0b3c59bSPatrick Mooney 125*d0b3c59bSPatrick Mooney #endif /* _I386_ISA_RTC_H_ */ 126