sys/arch/amiga/dev/rtc.h

   1 /*      $NetBSD: rtc.h,v 1.8 2002/01/26 13:40:59 aymeric Exp $  */
   2
   3 /*
   4  * Copyright (c) 1994 Christian E. Hopps
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  * 3. All advertising materials mentioning features or use of this software
  16  *    must display the following acknowledgement:
  17  *      This product includes software developed by Christian E. Hopps.
  18  * 4. The name of the author may not be used to endorse or promote products
  19  *    derived from this software without specific prior written permission
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  22  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  23  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  24  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  25  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  26  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  27  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  28  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  29  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  30  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  31  *
  32  * information on A2000 clock from Harald Backert.
  33  * information on A3000 clock from Holger Emden.
  34  */
  35 #ifndef _RTCVAR_H_
  36 #define _RTCVAR_H_
  37
  38 /* this is a hook set by a clock driver for the configured realtime clock,
  39    returning plain current unix-time */
  40
  41 extern int (*ugettod)(struct timeval *);
  42 extern int (*usettod)(struct timeval *);
  43
  44 struct rtclock2000 {
  45         u_int  :28, second2:4;  /* lower digit */
  46         u_int  :28, second1:4;  /* upper digit */
  47         u_int  :28, minute2:4;  /* lower digit */
  48         u_int  :28, minute1:4;  /* upper digit */
  49         u_int  :28, hour2:4;    /* lower digit */
  50         u_int  :28, hour1:4;    /* upper digit */
  51         u_int  :28, day2:4;     /* lower digit */
  52         u_int  :28, day1:4;     /* upper digit */
  53         u_int  :28, month2:4;   /* lower digit */
  54         u_int  :28, month1:4;   /* upper digit */
  55         u_int  :28, year2:4;    /* lower digit */
  56         u_int  :28, year1:4;    /* upper digit */
  57         u_int  :28, weekday:4;  /* weekday */
  58         u_int  :28, control1:4; /* control-byte 1 */
  59         u_int  :28, control2:4; /* control-byte 2 */
  60         u_int  :28, control3:4; /* control-byte 3 */
  61 };
  62
  63 /*
  64  * commands written to control1, HOLD before reading the clock,
  65  * FREE after done reading.
  66  */
  67
  68 #define A2CONTROL1_HOLD         (1<<0)
  69 #define A2CONTROL1_BUSY         (1<<1)
  70 #define A2CONTROL3_24HMODE      (1<<2)
  71 #define A2HOUR1_PM              (1<<2)
  72
  73 struct rtclock3000 {
  74         u_int  :28, second2:4;  /* 0x03  lower digit */
  75         u_int  :28, second1:4;  /* 0x07  upper digit */
  76         u_int  :28, minute2:4;  /* 0x0b  lower digit */
  77         u_int  :28, minute1:4;  /* 0x0f  upper digit */
  78         u_int  :28, hour2:4;    /* 0x13  lower digit */
  79         u_int  :28, hour1:4;    /* 0x17  upper digit */
  80         u_int  :28, weekday:4;  /* 0x1b */
  81         u_int  :28, day2:4;     /* 0x1f  lower digit */
  82         u_int  :28, day1:4;     /* 0x23  upper digit */
  83         u_int  :28, month2:4;   /* 0x27  lower digit */
  84         u_int  :28, month1:4;   /* 0x2b  upper digit */
  85         u_int  :28, year2:4;    /* 0x2f  lower digit */
  86         u_int  :28, year1:4;    /* 0x33  upper digit */
  87         u_int  :28, control1:4; /* 0x37  control-byte 1 */
  88         u_int  :28, control2:4; /* 0x3b  control-byte 2 */
  89         u_int  :28, control3:4; /* 0x3f  control-byte 3 */
  90 };
  91
  92 #define A3CONTROL1_HOLD_CLOCK   0
  93 #define A3CONTROL1_FREE_CLOCK   9
  94
  95 /* mode1 registers used by us */
  96 #define leapyear year2
  97
  98 #define A3BBC_SET_REG   0xe0
  99 #define A3BBC_WRITE_REG 0xc2
 100 #define A3BBC_READ_REG  0xc3
 101 #define A3NUM_BBC_REGS  12
 102
 103 /*
 104  * Our clock starts at 1/1/1970, but counts the years from 1900.
 105  */
 106 #define STARTOFTIME     1970
 107 #define CLOCK_BASE_YEAR 1900
 108
 109 #endif /* _RTCVAR_H_ */