1 /* $NetBSD: clockreg.h,v 1.1.1.1 1995/07/25 23:12:29 chuck 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. All advertising materials mentioning features or use of this software 25 * must display the following acknowledgement: 26 * This product includes software developed by the University of 27 * California, Berkeley and its contributors. 28 * 4. Neither the name of the University nor the names of its contributors 29 * may be used to endorse or promote products derived from this software 30 * without specific prior written permission. 31 * 32 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 33 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 34 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 35 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 36 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 37 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 38 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 39 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 40 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 41 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 42 * SUCH DAMAGE. 43 * 44 * @(#)clockreg.h 8.1 (Berkeley) 6/11/93 45 */ 46 47 /* 48 * Mostek MK48T02 clock. 49 */ 50 struct clockreg { 51 volatile u_char cl_csr; /* control register */ 52 volatile u_char cl_sec; /* seconds (0..59; BCD) */ 53 volatile u_char cl_min; /* minutes (0..59; BCD) */ 54 volatile u_char cl_hour; /* hour (0..23; BCD) */ 55 volatile u_char cl_wday; /* weekday (1..7) */ 56 volatile u_char cl_mday; /* day in month (1..31; BCD) */ 57 volatile u_char cl_month; /* month (1..12; BCD) */ 58 volatile u_char cl_year; /* year (0..99; BCD) */ 59 }; 60 61 /* bits in cl_csr */ 62 #define CLK_WRITE 0x80 /* want to write */ 63 #define CLK_READ 0x40 /* want to read (freeze clock) */ 64 65 /* 66 * Sun chose the year `68' as their base count, so that 67 * cl_year==0 means 1968. 68 */ 69 #define YEAR0 68 70