scoutos / prex-0.9.0 / bsp / drv / include / rtc.h @ 03e9c04a
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/* $OpenBSD: time.h,v 1.25 2007/05/09 17:42:19 deraadt Exp $ */
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/* $NetBSD: time.h,v 1.18 1996/04/23 10:29:33 mycroft Exp $ */
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/*
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* Copyright (c) 1982, 1986, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)time.h 8.2 (Berkeley) 7/10/94
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*/
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/* Modified for Prex by Kohsuke Ohtani */
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#ifndef _RTC_H
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#define _RTC_H
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#include <sys/cdefs.h> |
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struct rtc_ops {
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int (*gettime)(void *aux, struct timeval *tv); |
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int (*settime)(void *aux, struct timeval *tv); |
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}; |
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/*
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* "POSIX time" to/from "YY/MM/DD/hh/mm/ss"
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*/
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struct clock_ymdhms {
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u_short year; |
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u_char mon; |
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u_char day; |
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u_char dow; /* Day of week */
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u_char hour; |
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u_char min; |
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u_char sec; |
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u_char nsec; |
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}; |
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/*
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* BCD to decimal and decimal to BCD.
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*/
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#define FROMBCD(x) (u_char)(((x) >> 4) * 10 + ((x) & 0xf)) |
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#define TOBCD(x) (u_char)(((x) / 10 * 16) + ((x) % 10)) |
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/* Some handy constants. */
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#define SECDAY 86400L |
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#define SECYR (SECDAY * 365) |
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/* Traditional POSIX base year */
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#define POSIX_BASE_YEAR 1970 |
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__BEGIN_DECLS |
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time_t rtc_ymdhms_to_secs(struct clock_ymdhms *dt);
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void rtc_secs_to_ymdhms(time_t secs, struct clock_ymdhms *dt); |
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void rtc_attach(struct rtc_ops *ops, void *aux); |
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__END_DECLS |
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#endif /* !_RTC_H */ |