1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 1996 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Gordon W. Ross 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 * 31 * $NetBSD: clock_subr.h,v 1.7 2000/10/03 13:41:07 tsutsui Exp $ 32 * 33 * 34 * This file is the central clearing-house for calendrical issues. 35 * 36 * In general the kernel does not know about minutes, hours, days, timezones, 37 * daylight savings time, leap-years and such. All that is theoretically a 38 * matter for userland only. 39 * 40 * Parts of kernel code does however care: badly designed filesystems store 41 * timestamps in local time and RTC chips sometimes track time in a local 42 * timezone instead of UTC and so on. 43 * 44 * All that code should go here for service. 45 */ 46 #ifndef FAT_CLOCK_H_ 47 #define FAT_CLOCK_H_ 48 49 50 // Modified to support the Haiku FAT driver. 51 52 int utc_offset(void); 53 54 void timespec2fattime(const struct timespec* tsp, int utc, u_int16_t* ddp, u_int16_t* dtp, 55 u_int8_t* dhp); 56 void fattime2timespec(unsigned dd, unsigned dt, unsigned dh, int utc, struct timespec* tsp); 57 58 59 #endif // FAT_CLOCK_H_ 60