1 /* $NetBSD: a34kbbc.c,v 1.12 2002/10/02 04:55:48 thorpej 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/cdefs.h> 46 __KERNEL_RCSID(0, "$NetBSD: a34kbbc.c,v 1.12 2002/10/02 04:55:48 thorpej Exp $"); 47 48 #include <sys/param.h> 49 #include <sys/kernel.h> 50 #include <sys/device.h> 51 #include <sys/systm.h> 52 #include <machine/psl.h> 53 #include <machine/cpu.h> 54 #include <amiga/amiga/device.h> 55 #include <amiga/amiga/custom.h> 56 #include <amiga/amiga/cia.h> 57 #include <amiga/dev/rtc.h> 58 #include <amiga/dev/zbusvar.h> 59 60 #include <dev/clock_subr.h> 61 62 int a34kbbc_match(struct device *, struct cfdata *, void *); 63 void a34kbbc_attach(struct device *, struct device *, void *); 64 65 CFATTACH_DECL(a34kbbc, sizeof(struct device), 66 a34kbbc_match, a34kbbc_attach, NULL, NULL); 67 68 void *a34kclockaddr; 69 int a34kugettod(struct timeval *); 70 int a34kusettod(struct timeval *); 71 72 int 73 a34kbbc_match(struct device *pdp, struct cfdata *cfp, void *auxp) 74 { 75 static int a34kbbc_matched = 0; 76 77 if (!matchname("a34kbbc", auxp)) 78 return(0); 79 80 /* Allow only once instance. */ 81 if (a34kbbc_matched) 82 return(0); 83 84 if (!(is_a3000() || is_a4000())) 85 return(0); 86 87 a34kclockaddr = (void *)ztwomap(0xdc0000); 88 if (a34kugettod(0) == 0) 89 return(0); 90 91 a34kbbc_matched = 1; 92 return(1); 93 } 94 95 /* 96 * Attach us to the rtc function pointers. 97 */ 98 void 99 a34kbbc_attach(struct device *pdp, struct device *dp, void *auxp) 100 { 101 printf("\n"); 102 a34kclockaddr = (void *)ztwomap(0xdc0000); 103 104 ugettod = a34kugettod; 105 usettod = a34kusettod; 106 } 107 108 int 109 a34kugettod(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 /* let it run again.. */ 131 rt->control1 = A3CONTROL1_FREE_CLOCK; 132 133 if (dt.dt_year < STARTOFTIME) 134 dt.dt_year += 100; 135 136 137 if ((dt.dt_hour > 23) || 138 (dt.dt_wday > 6) || 139 (dt.dt_day > 31) || 140 (dt.dt_mon > 12) || 141 /* (dt.dt_year < STARTOFTIME) || */ (dt.dt_year > 2036)) 142 return (0); 143 144 secs = clock_ymdhms_to_secs(&dt); 145 if (tvp) 146 tvp->tv_sec = secs; 147 return (1); 148 } 149 150 int 151 a34kusettod(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); 168 169 rt->control1 = A3CONTROL1_HOLD_CLOCK; /* implies mode 0 */ 170 rt->second1 = dt.dt_sec / 10; 171 rt->second2 = dt.dt_sec % 10; 172 rt->minute1 = dt.dt_min / 10; 173 rt->minute2 = dt.dt_min % 10; 174 rt->hour1 = dt.dt_hour / 10; 175 rt->hour2 = dt.dt_hour % 10; 176 rt->weekday = dt.dt_wday; 177 rt->day1 = dt.dt_day / 10; 178 rt->day2 = dt.dt_day % 10; 179 rt->month1 = dt.dt_mon / 10; 180 rt->month2 = dt.dt_mon % 10; 181 rt->year1 = (dt.dt_year / 10) % 10; 182 rt->year2 = dt.dt_year % 10; 183 rt->control1 = A3CONTROL1_HOLD_CLOCK | 1; /* mode 1 registers */ 184 rt->leapyear = dt.dt_year; /* XXX implicit % 4 */ 185 rt->control1 = A3CONTROL1_FREE_CLOCK; /* implies mode 1 */ 186 187 return (1); 188 } 189