sys/dev/clock_subr.h

1.1.2.2  is /*	$NetBSD: clock_subr.h,v 1.1.2.2 1997/03/12 21:21:50 is Exp $	*/
1.1.2.2  is
1.1.2.2  is /*-
1.1.2.2  is  * Copyright (c) 1996 The NetBSD Foundation, Inc.
1.1.2.2  is  * All rights reserved.
1.1.2.2  is  *
1.1.2.2  is  * This code is derived from software contributed to The NetBSD Foundation
1.1.2.2  is  * by Gordon W. Ross
1.1.2.2  is  *
1.1.2.2  is  * Redistribution and use in source and binary forms, with or without
1.1.2.2  is  * modification, are permitted provided that the following conditions
1.1.2.2  is  * are met:
1.1.2.2  is  * 1. Redistributions of source code must retain the above copyright
1.1.2.2  is  *    notice, this list of conditions and the following disclaimer.
1.1.2.2  is  * 2. Redistributions in binary form must reproduce the above copyright
1.1.2.2  is  *    notice, this list of conditions and the following disclaimer in the
1.1.2.2  is  *    documentation and/or other materials provided with the distribution.
1.1.2.2  is  * 3. All advertising materials mentioning features or use of this software
1.1.2.2  is  *    must display the following acknowledgement:
1.1.2.2  is  *        This product includes software developed by the NetBSD
1.1.2.2  is  *        Foundation, Inc. and its contributors.
1.1.2.2  is  * 4. Neither the name of The NetBSD Foundation nor the names of its
1.1.2.2  is  *    contributors may be used to endorse or promote products derived
1.1.2.2  is  *    from this software without specific prior written permission.
1.1.2.2  is  *
1.1.2.2  is  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
1.1.2.2  is  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
1.1.2.2  is  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
1.1.2.2  is  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
1.1.2.2  is  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
1.1.2.2  is  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
1.1.2.2  is  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
1.1.2.2  is  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
1.1.2.2  is  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
1.1.2.2  is  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
1.1.2.2  is  * POSSIBILITY OF SUCH DAMAGE.
1.1.2.2  is  */
1.1.2.2  is
1.1.2.2  is /*
1.1.2.2  is  * "POSIX time" to/from "YY/MM/DD/hh/mm/ss"
1.1.2.2  is  */
1.1.2.2  is struct clock_ymdhms {
1.1.2.2  is 	u_short dt_year;
1.1.2.2  is 	u_char dt_mon;
1.1.2.2  is 	u_char dt_day;
1.1.2.2  is 	u_char dt_wday;	/* Day of week */
1.1.2.2  is 	u_char dt_hour;
1.1.2.2  is 	u_char dt_min;
1.1.2.2  is 	u_char dt_sec;
1.1.2.2  is };
1.1.2.2  is
1.1.2.2  is time_t clock_ymdhms_to_secs __P((struct clock_ymdhms *));
1.1.2.2  is void clock_secs_to_ymdhms __P((time_t, struct clock_ymdhms *));
1.1.2.2  is
1.1.2.2  is /*
1.1.2.2  is  * BCD to decimal and decimal to BCD.
1.1.2.2  is  */
1.1.2.2  is #define	FROMBCD(x)	(((x) >> 4) * 10 + ((x) & 0xf))
1.1.2.2  is #define	TOBCD(x)	(((x) / 10 * 16) + ((x) % 10))
1.1.2.2  is
1.1.2.2  is /* Some handy constants. */
1.1.2.2  is #define SECDAY		86400L
1.1.2.2  is #define SECYR		(SECDAY * 365)
1.1.2.2  is