a34kbbc.c revision 1.4
1 /* $NetBSD: a34kbbc.c,v 1.4 2000/01/02 18:29:23 is Exp $ */ 2 3 /* 4 * Copyright (c) 1988 University of Utah. 5 * Copyright (c) 1982, 1990 The Regents of the University of California. 6 * All rights reserved. 7 * 8 * This code is derived from software contributed to Berkeley by 9 * the Systems Programming Group of the University of Utah Computer 10 * Science Department. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 3. All advertising materials mentioning features or use of this software 21 * must display the following acknowledgement: 22 * This product includes software developed by the University of 23 * California, Berkeley and its contributors. 24 * 4. Neither the name of the University nor the names of its contributors 25 * may be used to endorse or promote products derived from this software 26 * without specific prior written permission. 27 * 28 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 29 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 30 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 31 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 32 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 33 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 34 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 35 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 36 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 37 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 38 * SUCH DAMAGE. 39 * 40 * from: Utah $Hdr: clock.c 1.18 91/01/21$ 41 * 42 * @(#)clock.c 7.6 (Berkeley) 5/7/91 43 */ 44 45 #include <sys/param.h> 46 #include <sys/kernel.h> 47 #include <sys/device.h> 48 #include <sys/systm.h> 49 #include <machine/psl.h> 50 #include <machine/cpu.h> 51 #include <amiga/amiga/device.h> 52 #include <amiga/amiga/custom.h> 53 #include <amiga/amiga/cia.h> 54 #include <amiga/dev/rtc.h> 55 #include <amiga/dev/zbusvar.h> 56 57 #include <dev/clock_subr.h> 58 59 int a34kbbc_match __P((struct device *, struct cfdata *, void *)); 60 void a34kbbc_attach __P((struct device *, struct device *, void *)); 61 62 struct cfattach a34kbbc_ca = { 63 sizeof(struct device), a34kbbc_match, a34kbbc_attach 64 }; 65 66 void *a34kclockaddr; 67 int a34kugettod __P((struct timeval *)); 68 int a34kusettod __P((struct timeval *)); 69 70 int 71 a34kbbc_match(pdp, cfp, auxp) 72 struct device *pdp; 73 struct cfdata *cfp; 74 void *auxp; 75 { 76 if (!matchname("a34kbbc", auxp)) 77 return(0); 78 79 if (cfp->cf_unit) 80 return(0); /* only one of us please */ 81 82 if (!(is_a3000() || is_a4000())) 83 return(0); 84 85 a34kclockaddr = (void *)ztwomap(0xdc0000); 86 if (a34kugettod(0) == 0) 87 return(0); 88 89 return(1); 90 } 91 92 /* 93 * Attach us to the rtc function pointers. 94 */ 95 void 96 a34kbbc_attach(pdp, dp, auxp) 97 struct device *pdp, *dp; 98 void *auxp; 99 { 100 printf("\n"); 101 a34kclockaddr = (void *)ztwomap(0xdc0000); 102 103 ugettod = a34kugettod; 104 usettod = a34kusettod; 105 } 106 107 int 108 a34kugettod(tvp) 109 struct timeval *tvp; 110 { 111 struct rtclock3000 *rt; 112 struct clock_ymdhms dt; 113 time_t secs; 114 115 rt = a34kclockaddr; 116 117 /* hold clock */ 118 rt->control1 = A3CONTROL1_HOLD_CLOCK; 119 120 /* Copy the info. Careful about the order! */ 121 dt.dt_sec = rt->second1 * 10 + rt->second2; 122 dt.dt_min = rt->minute1 * 10 + rt->minute2; 123 dt.dt_hour = rt->hour1 * 10 + rt->hour2; 124 dt.dt_wday = rt->weekday; 125 dt.dt_day = rt->day1 * 10 + rt->day2; 126 dt.dt_mon = rt->month1 * 10 + rt->month2; 127 dt.dt_year = rt->year1 * 10 + rt->year2; 128 129 dt.dt_year += CLOCK_BASE_YEAR; 130 if (dt.dt_year < STARTOFTIME) 131 dt.dt_year += 100; 132 133 /* let it run again.. */ 134 rt->control1 = A3CONTROL1_FREE_CLOCK; 135 136 if ((dt.dt_hour > 23) || 137 (dt.dt_wday > 6) || 138 (dt.dt_day > 31) || 139 (dt.dt_mon > 12) || 140 /* (dt.dt_year < STARTOFTIME) || */ (dt.dt_year > 2036)) 141 return (0); 142 143 secs = clock_ymdhms_to_secs(&dt); 144 if (tvp) 145 tvp->tv_sec = secs; 146 return (1); 147 } 148 149 int 150 a34kusettod(tvp) 151 struct timeval *tvp; 152 { 153 struct rtclock3000 *rt; 154 struct clock_ymdhms dt; 155 time_t secs; 156 157 rt = a34kclockaddr; 158 secs = tvp->tv_sec; 159 /* 160 * there seem to be problems with the bitfield addressing 161 * currently used.. 162 */ 163 164 if (! rt) 165 return (0); 166 167 clock_secs_to_ymdhms(secs, &dt); 168 dt.dt_year -= CLOCK_BASE_YEAR; 169 170 rt->control1 = A3CONTROL1_HOLD_CLOCK; 171 rt->second1 = dt.dt_sec / 10; 172 rt->second2 = dt.dt_sec % 10; 173 rt->minute1 = dt.dt_min / 10; 174 rt->minute2 = dt.dt_min % 10; 175 rt->hour1 = dt.dt_hour / 10; 176 rt->hour2 = dt.dt_hour % 10; 177 rt->weekday = dt.dt_wday; 178 rt->day1 = dt.dt_day / 10; 179 rt->day2 = dt.dt_day % 10; 180 rt->month1 = dt.dt_mon / 10; 181 rt->month2 = dt.dt_mon % 10; 182 rt->year1 = dt.dt_year / 10; 183 rt->year2 = dt.dt_year % 10; 184 rt->control1 = A3CONTROL1_FREE_CLOCK; 185 186 return (1); 187 } 188
Indexes created Wed Sep 24 05:09:52 GMT 2025