a34kbbc.c revision 1.8
1 /* $NetBSD: a34kbbc.c,v 1.8 2000/03/15 20:40:00 kleink 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 static int a34kbbc_matched = 0; 77 78 if (!matchname("a34kbbc", auxp)) 79 return(0); 80 81 /* Allow only once instance. */ 82 if (a34kbbc_matched) 83 return(0); 84 85 if (!(is_a3000() || is_a4000())) 86 return(0); 87 88 a34kclockaddr = (void *)ztwomap(0xdc0000); 89 if (a34kugettod(0) == 0) 90 return(0); 91 92 a34kbbc_matched = 1; 93 return(1); 94 } 95 96 /* 97 * Attach us to the rtc function pointers. 98 */ 99 void 100 a34kbbc_attach(pdp, dp, auxp) 101 struct device *pdp, *dp; 102 void *auxp; 103 { 104 printf("\n"); 105 a34kclockaddr = (void *)ztwomap(0xdc0000); 106 107 ugettod = a34kugettod; 108 usettod = a34kusettod; 109 } 110 111 int 112 a34kugettod(tvp) 113 struct timeval *tvp; 114 { 115 struct rtclock3000 *rt; 116 struct clock_ymdhms dt; 117 time_t secs; 118 119 rt = a34kclockaddr; 120 121 /* hold clock */ 122 rt->control1 = A3CONTROL1_HOLD_CLOCK; 123 124 /* Copy the info. Careful about the order! */ 125 dt.dt_sec = rt->second1 * 10 + rt->second2; 126 dt.dt_min = rt->minute1 * 10 + rt->minute2; 127 dt.dt_hour = rt->hour1 * 10 + rt->hour2; 128 dt.dt_wday = rt->weekday; 129 dt.dt_day = rt->day1 * 10 + rt->day2; 130 dt.dt_mon = rt->month1 * 10 + rt->month2; 131 dt.dt_year = rt->year1 * 10 + rt->year2; 132 133 dt.dt_year += CLOCK_BASE_YEAR; 134 /* let it run again.. */ 135 rt->control1 = A3CONTROL1_FREE_CLOCK; 136 137 if (dt.dt_year < STARTOFTIME) 138 dt.dt_year += 100; 139 140 141 if ((dt.dt_hour > 23) || 142 (dt.dt_wday > 6) || 143 (dt.dt_day > 31) || 144 (dt.dt_mon > 12) || 145 /* (dt.dt_year < STARTOFTIME) || */ (dt.dt_year > 2036)) 146 return (0); 147 148 secs = clock_ymdhms_to_secs(&dt); 149 if (tvp) 150 tvp->tv_sec = secs; 151 return (1); 152 } 153 154 int 155 a34kusettod(tvp) 156 struct timeval *tvp; 157 { 158 struct rtclock3000 *rt; 159 struct clock_ymdhms dt; 160 time_t secs; 161 162 rt = a34kclockaddr; 163 secs = tvp->tv_sec; 164 /* 165 * there seem to be problems with the bitfield addressing 166 * currently used.. 167 */ 168 169 if (! rt) 170 return (0); 171 172 clock_secs_to_ymdhms(secs, &dt); 173 174 rt->control1 = A3CONTROL1_HOLD_CLOCK; /* implies mode 0 */ 175 rt->second1 = dt.dt_sec / 10; 176 rt->second2 = dt.dt_sec % 10; 177 rt->minute1 = dt.dt_min / 10; 178 rt->minute2 = dt.dt_min % 10; 179 rt->hour1 = dt.dt_hour / 10; 180 rt->hour2 = dt.dt_hour % 10; 181 rt->weekday = dt.dt_wday; 182 rt->day1 = dt.dt_day / 10; 183 rt->day2 = dt.dt_day % 10; 184 rt->month1 = dt.dt_mon / 10; 185 rt->month2 = dt.dt_mon % 10; 186 rt->year1 = (dt.dt_year / 10) % 10; 187 rt->year2 = dt.dt_year % 10; 188 rt->control1 = A3CONTROL1_HOLD_CLOCK | 1; /* mode 1 registers */ 189 rt->leapyear = dt.dt_year; /* XXX implicit % 4 */ 190 rt->control1 = A3CONTROL1_FREE_CLOCK; /* implies mode 1 */ 191 192 return (1); 193 } 194
Indexes created Thu Sep 25 16:09:42 GMT 2025