1 /* $NetBSD: a34kbbc.c,v 1.20 2006/10/10 17:24:23 mhitch Exp $ */ 2 3 /* 4 * Copyright (c) 1982, 1990 The Regents of the University of California. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to Berkeley by 8 * the Systems Programming Group of the University of Utah Computer 9 * Science Department. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 * 35 * from: Utah $Hdr: clock.c 1.18 91/01/21$ 36 * 37 * @(#)clock.c 7.6 (Berkeley) 5/7/91 38 */ 39 40 /* 41 * Copyright (c) 1988 University of Utah. 42 * 43 * This code is derived from software contributed to Berkeley by 44 * the Systems Programming Group of the University of Utah Computer 45 * Science Department. 46 * 47 * Redistribution and use in source and binary forms, with or without 48 * modification, are permitted provided that the following conditions 49 * are met: 50 * 1. Redistributions of source code must retain the above copyright 51 * notice, this list of conditions and the following disclaimer. 52 * 2. Redistributions in binary form must reproduce the above copyright 53 * notice, this list of conditions and the following disclaimer in the 54 * documentation and/or other materials provided with the distribution. 55 * 3. All advertising materials mentioning features or use of this software 56 * must display the following acknowledgement: 57 * This product includes software developed by the University of 58 * California, Berkeley and its contributors. 59 * 4. Neither the name of the University nor the names of its contributors 60 * may be used to endorse or promote products derived from this software 61 * without specific prior written permission. 62 * 63 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 64 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 65 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 66 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 67 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 68 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 69 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 70 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 71 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 72 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 73 * SUCH DAMAGE. 74 * 75 * from: Utah $Hdr: clock.c 1.18 91/01/21$ 76 * 77 * @(#)clock.c 7.6 (Berkeley) 5/7/91 78 */ 79 80 #include <sys/cdefs.h> 81 __KERNEL_RCSID(0, "$NetBSD: a34kbbc.c,v 1.20 2006/10/10 17:24:23 mhitch Exp $"); 82 83 #include <sys/param.h> 84 #include <sys/kernel.h> 85 #include <sys/device.h> 86 #include <sys/systm.h> 87 #include <machine/psl.h> 88 #include <machine/cpu.h> 89 #include <amiga/amiga/device.h> 90 #include <amiga/amiga/custom.h> 91 #include <amiga/amiga/cia.h> 92 #include <amiga/dev/rtc.h> 93 #include <amiga/dev/zbusvar.h> 94 95 #include <dev/clock_subr.h> 96 97 int a34kbbc_match(struct device *, struct cfdata *, void *); 98 void a34kbbc_attach(struct device *, struct device *, void *); 99 100 CFATTACH_DECL(a34kbbc, sizeof(struct device), 101 a34kbbc_match, a34kbbc_attach, NULL, NULL); 102 103 void *a34kclockaddr; 104 int a34kugettod(todr_chip_handle_t, struct clock_ymdhms *); 105 int a34kusettod(todr_chip_handle_t, struct clock_ymdhms *); 106 static struct todr_chip_handle a34ktodr; 107 108 int 109 a34kbbc_match(struct device *pdp, struct cfdata *cfp, void *auxp) 110 { 111 struct clock_ymdhms dt; 112 static int a34kbbc_matched = 0; 113 114 if (!matchname("a34kbbc", auxp)) 115 return(0); 116 117 /* Allow only one instance. */ 118 if (a34kbbc_matched) 119 return(0); 120 121 if (!(is_a3000() || is_a4000())) 122 return(0); 123 124 a34kclockaddr = (void *)__UNVOLATILE(ztwomap(0xdc0000)); 125 if (a34kugettod(&a34ktodr, &dt) != 0) 126 return(0); 127 128 a34kbbc_matched = 1; 129 return(1); 130 } 131 132 /* 133 * Attach us to the rtc function pointers. 134 */ 135 void 136 a34kbbc_attach(struct device *pdp, struct device *dp, void *auxp) 137 { 138 printf("\n"); 139 a34kclockaddr = (void *)__UNVOLATILE(ztwomap(0xdc0000)); 140 141 a34ktodr.cookie = a34kclockaddr; 142 a34ktodr.todr_gettime_ymdhms = a34kugettod; 143 a34ktodr.todr_settime_ymdhms = a34kusettod; 144 todr_attach(&a34ktodr); 145 } 146 147 int 148 a34kugettod(todr_chip_handle_t h, struct clock_ymdhms *dt) 149 { 150 struct rtclock3000 *rt; 151 152 rt = a34kclockaddr; 153 154 /* hold clock */ 155 rt->control1 = A3CONTROL1_HOLD_CLOCK; 156 157 /* Copy the info. Careful about the order! */ 158 dt->dt_sec = rt->second1 * 10 + rt->second2; 159 dt->dt_min = rt->minute1 * 10 + rt->minute2; 160 dt->dt_hour = rt->hour1 * 10 + rt->hour2; 161 dt->dt_wday = rt->weekday; 162 dt->dt_day = rt->day1 * 10 + rt->day2; 163 dt->dt_mon = rt->month1 * 10 + rt->month2; 164 dt->dt_year = rt->year1 * 10 + rt->year2; 165 166 dt->dt_year += CLOCK_BASE_YEAR; 167 /* let it run again.. */ 168 rt->control1 = A3CONTROL1_FREE_CLOCK; 169 170 if (dt->dt_year < STARTOFTIME) 171 dt->dt_year += 100; 172 173 174 /* 175 * These checks are mostly redundant against those already in the 176 * generic todr, but apparently the attach code checks against the 177 * return value of this function, so we have to include a check here, 178 * too. 179 */ 180 if ((dt->dt_hour > 23) || 181 (dt->dt_wday > 6) || 182 (dt->dt_day > 31) || 183 (dt->dt_mon > 12) || 184 /* (dt.dt_year < STARTOFTIME) || */ (dt->dt_year > 2036)) 185 return (EINVAL); 186 187 return (0); 188 } 189 190 int 191 a34kusettod(todr_chip_handle_t h, struct clock_ymdhms *dt) 192 { 193 struct rtclock3000 *rt; 194 195 rt = a34kclockaddr; 196 /* 197 * there seem to be problems with the bitfield addressing 198 * currently used.. 199 */ 200 201 if (! rt) 202 return (ENXIO); 203 204 rt->control1 = A3CONTROL1_HOLD_CLOCK; /* implies mode 0 */ 205 rt->second1 = dt->dt_sec / 10; 206 rt->second2 = dt->dt_sec % 10; 207 rt->minute1 = dt->dt_min / 10; 208 rt->minute2 = dt->dt_min % 10; 209 rt->hour1 = dt->dt_hour / 10; 210 rt->hour2 = dt->dt_hour % 10; 211 rt->weekday = dt->dt_wday; 212 rt->day1 = dt->dt_day / 10; 213 rt->day2 = dt->dt_day % 10; 214 rt->month1 = dt->dt_mon / 10; 215 rt->month2 = dt->dt_mon % 10; 216 rt->year1 = (dt->dt_year / 10) % 10; 217 rt->year2 = dt->dt_year % 10; 218 rt->control1 = A3CONTROL1_HOLD_CLOCK | 1; /* mode 1 registers */ 219 rt->leapyear = dt->dt_year; /* XXX implicit % 4 */ 220 rt->control1 = A3CONTROL1_FREE_CLOCK; /* implies mode 1 */ 221 222 return (0); 223 } 224