1 /* $NetBSD: clock.c,v 1.1 2001/05/14 18:22:59 drochner Exp $ */ 2 3 /* 4 * Copyright (c) 1997, 1999 5 * Matthias Drochner. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 * 27 */ 28 29 #include <sys/param.h> 30 #include <sys/systm.h> 31 #include <sys/kernel.h> 32 33 #include <machine/autoconf.h> 34 35 char *clockbase; 36 37 extern void sic_enable_int(int, int, int, int, int); 38 void 39 cpu_initclocks() 40 { 41 mainbus_map(0x5a000000, 0x1000, 0, (void **)&clockbase); 42 sic_enable_int(25, 0, 1, 6, 0); 43 } 44 45 #if 0 46 void readrtc() 47 { 48 } 49 #endif 50 51 void 52 microtime(tvp) 53 struct timeval *tvp; 54 { 55 static struct timeval lasttime; 56 int s = splhigh(); 57 58 /* make sure it's monotonic */ 59 if (timercmp(&time, &lasttime, <)) 60 *tvp = lasttime; 61 else 62 *tvp = lasttime = time; 63 splx(s); 64 } 65 66 /* 67 * Initialize the time of day register, based on the time base which is, e.g. 68 * from a filesystem. 69 */ 70 void 71 inittodr(base) 72 time_t base; 73 { 74 75 time.tv_sec = base; /* XXX NFS server time - OK for diskless systems */ 76 } 77 78 /* 79 * Restore the time of day hardware after a time change. 80 */ 81 void 82 resettodr() 83 { 84 } 85 86 void 87 setstatclockrate(newhz) 88 int newhz; 89 { 90 } 91 92 void otherclock __P((int)); 93 94 void 95 otherclock(sr) 96 int sr; 97 { 98 printf("otherclock(%x)\n", sr); 99 } 100