| Current Path : /sys/amd64/compile/hs32/modules/usr/src/sys/modules/ichwd/@/amd64/compile/hs32/modules/usr/src/sys/modules/nmdm/@/sys/ |
FreeBSD hs32.drive.ne.jp 9.1-RELEASE FreeBSD 9.1-RELEASE #1: Wed Jan 14 12:18:08 JST 2015 root@hs32.drive.ne.jp:/sys/amd64/compile/hs32 amd64 |
| Current File : //sys/amd64/compile/hs32/modules/usr/src/sys/modules/ichwd/@/amd64/compile/hs32/modules/usr/src/sys/modules/nmdm/@/sys/clock.h |
/*-
* Copyright (c) 1996 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Gordon W. Ross
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
* $NetBSD: clock_subr.h,v 1.7 2000/10/03 13:41:07 tsutsui Exp $
*
*
* This file is the central clearing-house for calendrical issues.
*
* In general the kernel does not know about minutes, hours, days, timezones,
* daylight savings time, leap-years and such. All that is theoretically a
* matter for userland only.
*
* Parts of kernel code does however care: badly designed filesystems store
* timestamps in local time and RTC chips sometimes track time in a local
* timezone instead of UTC and so on.
*
* All that code should go here for service.
*
* $FreeBSD: release/9.1.0/sys/sys/clock.h 204646 2010-03-03 17:55:51Z joel $
*/
#ifndef _SYS_CLOCK_H_
#define _SYS_CLOCK_H_
#ifdef _KERNEL /* No user serviceable parts */
/*
* Timezone info from settimeofday(2), usually not used
*/
extern int tz_minuteswest;
extern int tz_dsttime;
int utc_offset(void);
/*
* Structure to hold the values typically reported by time-of-day clocks.
* This can be passed to the generic conversion functions to be converted
* to a struct timespec.
*/
struct clocktime {
int year; /* year (4 digit year) */
int mon; /* month (1 - 12) */
int day; /* day (1 - 31) */
int hour; /* hour (0 - 23) */
int min; /* minute (0 - 59) */
int sec; /* second (0 - 59) */
int dow; /* day of week (0 - 6; 0 = Sunday) */
long nsec; /* nano seconds */
};
int clock_ct_to_ts(struct clocktime *, struct timespec *);
void clock_ts_to_ct(struct timespec *, struct clocktime *);
void clock_register(device_t, long);
/*
* BCD to decimal and decimal to BCD.
*/
#define FROMBCD(x) bcd2bin(x)
#define TOBCD(x) bin2bcd(x)
/* Some handy constants. */
#define SECDAY (24 * 60 * 60)
#define SECYR (SECDAY * 365)
/* Traditional POSIX base year */
#define POSIX_BASE_YEAR 1970
void timespec2fattime(struct timespec *tsp, int utc, u_int16_t *ddp, u_int16_t *dtp, u_int8_t *dhp);
void fattime2timespec(unsigned dd, unsigned dt, unsigned dh, int utc, struct timespec *tsp);
#endif /* _KERNEL */
#endif /* !_SYS_CLOCK_H_ */