a34kbbc.c revision 1.9
1 /* $NetBSD: a34kbbc.c,v 1.9 2002/01/26 13:40:52 aymeric 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(struct device *, struct cfdata *, void *); 60 void a34kbbc_attach(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(struct timeval *); 68 int a34kusettod(struct timeval *); 69 70 int 71 a34kbbc_match(struct device *pdp, struct cfdata *cfp, void *auxp) 72 { 73 static int a34kbbc_matched = 0; 74 75 if (!matchname("a34kbbc", auxp)) 76 return(0); 77 78 /* Allow only once instance. */ 79 if (a34kbbc_matched) 80 return(0); 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 a34kbbc_matched = 1; 90 return(1); 91 } 92 93 /* 94 * Attach us to the rtc function pointers. 95 */ 96 void 97 a34kbbc_attach(struct device *pdp, struct device *dp, void *auxp) 98 { 99 printf("\n"); 100 a34kclockaddr = (void *)ztwomap(0xdc0000); 101 102 ugettod = a34kugettod; 103 usettod = a34kusettod; 104 } 105 106 int 107 a34kugettod(struct timeval *tvp) 108 { 109 struct rtclock3000 *rt; 110 struct clock_ymdhms dt; 111 time_t secs; 112 113 rt = a34kclockaddr; 114 115 /* hold clock */ 116 rt->control1 = A3CONTROL1_HOLD_CLOCK; 117 118 /* Copy the info. Careful about the order! */ 119 dt.dt_sec = rt->second1 * 10 + rt->second2; 120 dt.dt_min = rt->minute1 * 10 + rt->minute2; 121 dt.dt_hour = rt->hour1 * 10 + rt->hour2; 122 dt.dt_wday = rt->weekday; 123 dt.dt_day = rt->day1 * 10 + rt->day2; 124 dt.dt_mon = rt->month1 * 10 + rt->month2; 125 dt.dt_year = rt->year1 * 10 + rt->year2; 126 127 dt.dt_year += CLOCK_BASE_YEAR; 128 /* let it run again.. */ 129 rt->control1 = A3CONTROL1_FREE_CLOCK; 130 131 if (dt.dt_year < STARTOFTIME) 132 dt.dt_year += 100; 133 134 135 if ((dt.dt_hour > 23) || 136 (dt.dt_wday > 6) || 137 (dt.dt_day > 31) || 138 (dt.dt_mon > 12) || 139 /* (dt.dt_year < STARTOFTIME) || */ (dt.dt_year > 2036)) 140 return (0); 141 142 secs = clock_ymdhms_to_secs(&dt); 143 if (tvp) 144 tvp->tv_sec = secs; 145 return (1); 146 } 147 148 int 149 a34kusettod(struct timeval *tvp) 150 { 151 struct rtclock3000 *rt; 152 struct clock_ymdhms dt; 153 time_t secs; 154 155 rt = a34kclockaddr; 156 secs = tvp->tv_sec; 157 /* 158 * there seem to be problems with the bitfield addressing 159 * currently used.. 160 */ 161 162 if (! rt) 163 return (0); 164 165 clock_secs_to_ymdhms(secs, &dt); 166 167 rt->control1 = A3CONTROL1_HOLD_CLOCK; /* implies mode 0 */ 168 rt->second1 = dt.dt_sec / 10; 169 rt->second2 = dt.dt_sec % 10; 170 rt->minute1 = dt.dt_min / 10; 171 rt->minute2 = dt.dt_min % 10; 172 rt->hour1 = dt.dt_hour / 10; 173 rt->hour2 = dt.dt_hour % 10; 174 rt->weekday = dt.dt_wday; 175 rt->day1 = dt.dt_day / 10; 176 rt->day2 = dt.dt_day % 10; 177 rt->month1 = dt.dt_mon / 10; 178 rt->month2 = dt.dt_mon % 10; 179 rt->year1 = (dt.dt_year / 10) % 10; 180 rt->year2 = dt.dt_year % 10; 181 rt->control1 = A3CONTROL1_HOLD_CLOCK | 1; /* mode 1 registers */ 182 rt->leapyear = dt.dt_year; /* XXX implicit % 4 */ 183 rt->control1 = A3CONTROL1_FREE_CLOCK; /* implies mode 1 */ 184 185 return (1); 186 } 187
Indexes created Thu Sep 25 16:09:42 GMT 2025