2002-04-04 23:39:10 +00:00
|
|
|
/*-
|
|
|
|
|
* 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 $
|
|
|
|
|
*
|
Now that all platforms use genclock, shuffle things around slightly
for better structure.
Much of this is related to <sys/clock.h>, which should really have
been called <sys/calendar.h>, but unless and until we need the name,
the repocopy can wait.
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 almost universally
track time in a YY-MM-DD HH:MM:SS format, and sometimes in local
timezone instead of UTC. For this we have <sys/clock.h>
<sys/time.h> on the other hand, deals with time_t, timeval, timespec
and so on. These know only seconds and fractions thereof.
Move inittodr() and resettodr() prototypes to <sys/time.h>.
Retain the names as it is one of the few surviving PDP/VAX references.
Move startrtclock() to <machine/clock.h> on relevant platforms, it
is a MD call between machdep.c/clock.c. Remove references to it
elsewhere.
Remove a lot of unnecessary <sys/clock.h> includes.
Move the machdep.disable_rtc_set sysctl to subr_rtc.c where it belongs.
XXX: should be kern.disable_rtc_set really, it's not MD.
2008-04-22 19:38:30 +00:00
|
|
|
*
|
|
|
|
|
* 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.
|
|
|
|
|
*
|
2002-04-04 23:39:10 +00:00
|
|
|
* $FreeBSD$
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
#ifndef _SYS_CLOCK_H_
|
|
|
|
|
#define _SYS_CLOCK_H_
|
|
|
|
|
|
2006-10-02 12:59:59 +00:00
|
|
|
#ifdef _KERNEL /* No user serviceable parts */
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* Timezone info from settimeofday(2), usually not used
|
|
|
|
|
*/
|
|
|
|
|
extern int tz_minuteswest;
|
|
|
|
|
extern int tz_dsttime;
|
|
|
|
|
|
2006-10-02 16:17:23 +00:00
|
|
|
int utc_offset(void);
|
|
|
|
|
|
2002-04-04 23:39:10 +00:00
|
|
|
/*
|
|
|
|
|
* 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 {
|
2006-03-24 06:27:34 +00:00
|
|
|
int year; /* year (4 digit year) */
|
2002-04-04 23:39:10 +00:00
|
|
|
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.
|
|
|
|
|
*/
|
2006-10-02 12:59:59 +00:00
|
|
|
#define FROMBCD(x) bcd2bin(x)
|
|
|
|
|
#define TOBCD(x) bin2bcd(x)
|
2002-04-04 23:39:10 +00:00
|
|
|
|
|
|
|
|
/* Some handy constants. */
|
|
|
|
|
#define SECDAY (24 * 60 * 60)
|
|
|
|
|
#define SECYR (SECDAY * 365)
|
|
|
|
|
|
|
|
|
|
/* Traditional POSIX base year */
|
|
|
|
|
#define POSIX_BASE_YEAR 1970
|
|
|
|
|
|
2006-10-24 10:27:23 +00:00
|
|
|
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);
|
2006-10-22 18:19:08 +00:00
|
|
|
|
2006-10-02 12:59:59 +00:00
|
|
|
#endif /* _KERNEL */
|
|
|
|
|
|
2002-04-04 23:39:10 +00:00
|
|
|
#endif /* !_SYS_CLOCK_H_ */
|
