1 /* $NetBSD: clockvar.h,v 1.3 2002/01/14 16:23:27 pooka Exp $ */ 2 3 /*- 4 * Copyright (C) 1999 Tsubai Masanari. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. The name of the author may not be used to endorse or promote products 15 * derived from this software without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 struct clockfns { 30 void (*cf_init)(struct device *); 31 void (*cf_get)(struct device *, struct clock_ymdhms *); 32 void (*cf_set)(struct device *, struct clock_ymdhms *); 33 }; 34 35 void clockattach(struct device *, const struct clockfns *); 36 37 #define IRIX_CLOCK_BASE 1940 38 39 /* 40 * If year < 1985, store (year - 1970), else (year - 1940). This 41 * matches IRIX semantics. 42 */ 43 #define TO_IRIX_YEAR(a) ((a) < 1985) ? ((a) - (30 + IRIX_CLOCK_BASE)) \ 44 : ((a) - IRIX_CLOCK_BASE) 45 46 /* RTC base on IRIX is 1940, offsets < 45 are from 1970 */ 47 #define FROM_IRIX_YEAR(a) ((a) < 45) ? ((a) + 30 + IRIX_CLOCK_BASE) \ 48 : ((a) + IRIX_CLOCK_BASE) 49