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Annotation of Net2/arch/i386/isa/rtc.h, revision 1.1

1.1     ! root        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:  * Redistribution and use in source and binary forms, with or without
        !             9:  * modification, are permitted provided that the following conditions
        !            10:  * are met:
        !            11:  * 1. Redistributions of source code must retain the above copyright
        !            12:  *    notice, this list of conditions and the following disclaimer.
        !            13:  * 2. Redistributions in binary form must reproduce the above copyright
        !            14:  *    notice, this list of conditions and the following disclaimer in the
        !            15:  *    documentation and/or other materials provided with the distribution.
        !            16:  * 3. All advertising materials mentioning features or use of this software
        !            17:  *    must display the following acknowledgement:
        !            18:  *     This product includes software developed by the University of
        !            19:  *     California, Berkeley and its contributors.
        !            20:  * 4. Neither the name of the University nor the names of its contributors
        !            21:  *    may be used to endorse or promote products derived from this software
        !            22:  *    without specific prior written permission.
        !            23:  *
        !            24:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
        !            25:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
        !            26:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
        !            27:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
        !            28:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
        !            29:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
        !            30:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
        !            31:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
        !            32:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
        !            33:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
        !            34:  * SUCH DAMAGE.
        !            35:  *
        !            36:  *     @(#)rtc.h       7.1 (Berkeley) 5/12/91
        !            37:  */
        !            38: 
        !            39: /*
        !            40:  * RTC Register locations
        !            41:  */
        !            42: 
        !            43: #define RTC_SEC                0x00    /* seconds */
        !            44: #define RTC_SECALRM    0x01    /* seconds alarm */
        !            45: #define RTC_MIN                0x02    /* minutes */
        !            46: #define RTC_MINALRM    0x03    /* minutes alarm */
        !            47: #define RTC_HRS                0x04    /* hours */
        !            48: #define RTC_HRSALRM    0x05    /* hours alarm */
        !            49: #define RTC_WDAY       0x06    /* week day */
        !            50: #define RTC_DAY                0x07    /* day of month */
        !            51: #define RTC_MONTH      0x08    /* month of year */
        !            52: #define RTC_YEAR       0x09    /* month of year */
        !            53: #define RTC_STATUSA    0x0a    /* status register A */
        !            54: #define  RTCSA_TUP      0x80   /* time update, don't look now */
        !            55: 
        !            56: #define RTC_STATUSB    0x0b    /* status register B */
        !            57: 
        !            58: #define RTC_INTR       0x0c    /* status register C (R) interrupt source */
        !            59: #define  RTCIR_UPDATE   0x10   /* update intr */
        !            60: #define  RTCIR_ALARM    0x20   /* alarm intr */
        !            61: #define  RTCIR_PERIOD   0x40   /* periodic intr */
        !            62: #define  RTCIR_INT      0x80   /* interrupt output signal */
        !            63: 
        !            64: #define RTC_STATUSD    0x0d    /* status register D (R) Lost Power */
        !            65: #define  RTCSD_PWR      0x80   /* clock lost power */
        !            66: 
        !            67: #define RTC_DIAG       0x0e    /* status register E - bios diagnostic */
        !            68: #define RTCDG_BITS     "\020\010clock_battery\007ROM_cksum\006config_unit\005memory_size\004fixed_disk\003invalid_time"
        !            69: 
        !            70: #define RTC_RESET      0x0f    /* status register F - reset code byte */
        !            71: #define         RTCRS_RST       0x00           /* normal reset */
        !            72: #define         RTCRS_LOAD      0x04           /* load system */
        !            73: 
        !            74: #define RTC_BASELO     0x15    /* low byte of basemem size */
        !            75: #define RTC_BASEHI     0x16    /* high byte of basemem size */
        !            76: #define RTC_EXTLO      0x17    /* low byte of extended mem size */
        !            77: #define RTC_EXTHI      0x18    /* low byte of extended mem size */
        !            78: 
        !            79: #define RTC_CENTURY    0x32    /* current century - please increment in Dec99*/

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