Annotation of sys/arch/mvme68k/stand/sboot/clockreg.h, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: clockreg.h,v 1.4 2003/06/02 23:27:51 millert Exp $ */
! 2:
! 3: /*
! 4: * Copyright (c) 1992, 1993
! 5: * The Regents of the University of California. All rights reserved.
! 6: *
! 7: * This software was developed by the Computer Systems Engineering group
! 8: * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
! 9: * contributed to Berkeley.
! 10: *
! 11: * All advertising materials mentioning features or use of this software
! 12: * must display the following acknowledgement:
! 13: * This product includes software developed by the University of
! 14: * California, Lawrence Berkeley Laboratory.
! 15: *
! 16: * Redistribution and use in source and binary forms, with or without
! 17: * modification, are permitted provided that the following conditions
! 18: * are met:
! 19: * 1. Redistributions of source code must retain the above copyright
! 20: * notice, this list of conditions and the following disclaimer.
! 21: * 2. Redistributions in binary form must reproduce the above copyright
! 22: * notice, this list of conditions and the following disclaimer in the
! 23: * documentation and/or other materials provided with the distribution.
! 24: * 3. Neither the name of the University nor the names of its contributors
! 25: * may be used to endorse or promote products derived from this software
! 26: * without specific prior written permission.
! 27: *
! 28: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
! 29: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
! 30: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
! 31: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
! 32: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
! 33: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
! 34: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
! 35: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
! 36: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
! 37: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
! 38: * SUCH DAMAGE.
! 39: *
! 40: * @(#)clockreg.h 8.1 (Berkeley) 6/11/93
! 41: */
! 42:
! 43: /*
! 44: * Mostek MK48T02 clock.
! 45: */
! 46: struct clockreg {
! 47: volatile u_char cl_csr; /* control register */
! 48: volatile u_char cl_sec; /* seconds (0..59; BCD) */
! 49: volatile u_char cl_min; /* minutes (0..59; BCD) */
! 50: volatile u_char cl_hour; /* hour (0..23; BCD) */
! 51: volatile u_char cl_wday; /* weekday (1..7) */
! 52: volatile u_char cl_mday; /* day in month (1..31; BCD) */
! 53: volatile u_char cl_month; /* month (1..12; BCD) */
! 54: volatile u_char cl_year; /* year (0..99; BCD) */
! 55: };
! 56:
! 57: /* bits in cl_csr */
! 58: #define CLK_WRITE 0x80 /* want to write */
! 59: #define CLK_READ 0x40 /* want to read (freeze clock) */
! 60:
! 61: /*
! 62: * Sun chose the year `68' as their base count, so that
! 63: * cl_year==0 means 1968.
! 64: */
! 65: #define YEAR0 68
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