ds17485.c revision 1.2.2.2
1 1.2.2.2 ad /* $NetBSD: ds17485.c,v 1.2.2.2 2007/10/23 20:35:50 ad Exp $ */ 2 1.2.2.2 ad 3 1.2.2.2 ad /* 4 1.2.2.2 ad * Copyright (c) 2002 The NetBSD Foundation, Inc. 5 1.2.2.2 ad * All rights reserved. 6 1.2.2.2 ad * 7 1.2.2.2 ad * This code is derived from software contributed to The NetBSD Foundation 8 1.2.2.2 ad * by Lennart Augustsson (lennart (at) augustsson.net) at Sandburst Corp. 9 1.2.2.2 ad * 10 1.2.2.2 ad * Redistribution and use in source and binary forms, with or without 11 1.2.2.2 ad * modification, are permitted provided that the following conditions 12 1.2.2.2 ad * are met: 13 1.2.2.2 ad * 1. Redistributions of source code must retain the above copyright 14 1.2.2.2 ad * notice, this list of conditions and the following disclaimer. 15 1.2.2.2 ad * 2. Redistributions in binary form must reproduce the above copyright 16 1.2.2.2 ad * notice, this list of conditions and the following disclaimer in the 17 1.2.2.2 ad * documentation and/or other materials provided with the distribution. 18 1.2.2.2 ad * 3. All advertising materials mentioning features or use of this software 19 1.2.2.2 ad * must display the following acknowledgement: 20 1.2.2.2 ad * This product includes software developed by the NetBSD 21 1.2.2.2 ad * Foundation, Inc. and its contributors. 22 1.2.2.2 ad * 4. Neither the name of The NetBSD Foundation nor the names of its 23 1.2.2.2 ad * contributors may be used to endorse or promote products derived 24 1.2.2.2 ad * from this software without specific prior written permission. 25 1.2.2.2 ad * 26 1.2.2.2 ad * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 1.2.2.2 ad * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 1.2.2.2 ad * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 1.2.2.2 ad * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 1.2.2.2 ad * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 1.2.2.2 ad * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 1.2.2.2 ad * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 1.2.2.2 ad * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 1.2.2.2 ad * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 1.2.2.2 ad * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 1.2.2.2 ad * POSSIBILITY OF SUCH DAMAGE. 37 1.2.2.2 ad */ 38 1.2.2.2 ad 39 1.2.2.2 ad /*- 40 1.2.2.2 ad * Copyright (c) 1990 The Regents of the University of California. 41 1.2.2.2 ad * All rights reserved. 42 1.2.2.2 ad * 43 1.2.2.2 ad * This code is derived from software contributed to Berkeley by 44 1.2.2.2 ad * William Jolitz and Don Ahn. 45 1.2.2.2 ad * 46 1.2.2.2 ad * Redistribution and use in source and binary forms, with or without 47 1.2.2.2 ad * modification, are permitted provided that the following conditions 48 1.2.2.2 ad * are met: 49 1.2.2.2 ad * 1. Redistributions of source code must retain the above copyright 50 1.2.2.2 ad * notice, this list of conditions and the following disclaimer. 51 1.2.2.2 ad * 2. Redistributions in binary form must reproduce the above copyright 52 1.2.2.2 ad * notice, this list of conditions and the following disclaimer in the 53 1.2.2.2 ad * documentation and/or other materials provided with the distribution. 54 1.2.2.2 ad * 3. Neither the name of the University nor the names of its contributors 55 1.2.2.2 ad * may be used to endorse or promote products derived from this software 56 1.2.2.2 ad * without specific prior written permission. 57 1.2.2.2 ad * 58 1.2.2.2 ad * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 59 1.2.2.2 ad * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 60 1.2.2.2 ad * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 61 1.2.2.2 ad * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 62 1.2.2.2 ad * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 63 1.2.2.2 ad * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 64 1.2.2.2 ad * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 65 1.2.2.2 ad * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 66 1.2.2.2 ad * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 67 1.2.2.2 ad * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 68 1.2.2.2 ad * SUCH DAMAGE. 69 1.2.2.2 ad * 70 1.2.2.2 ad * @(#)clock.c 7.2 (Berkeley) 5/12/91 71 1.2.2.2 ad */ 72 1.2.2.2 ad /*- 73 1.2.2.2 ad * Copyright (c) 1993, 1994 Charles M. Hannum. 74 1.2.2.2 ad * 75 1.2.2.2 ad * This code is derived from software contributed to Berkeley by 76 1.2.2.2 ad * William Jolitz and Don Ahn. 77 1.2.2.2 ad * 78 1.2.2.2 ad * Redistribution and use in source and binary forms, with or without 79 1.2.2.2 ad * modification, are permitted provided that the following conditions 80 1.2.2.2 ad * are met: 81 1.2.2.2 ad * 1. Redistributions of source code must retain the above copyright 82 1.2.2.2 ad * notice, this list of conditions and the following disclaimer. 83 1.2.2.2 ad * 2. Redistributions in binary form must reproduce the above copyright 84 1.2.2.2 ad * notice, this list of conditions and the following disclaimer in the 85 1.2.2.2 ad * documentation and/or other materials provided with the distribution. 86 1.2.2.2 ad * 3. All advertising materials mentioning features or use of this software 87 1.2.2.2 ad * must display the following acknowledgement: 88 1.2.2.2 ad * This product includes software developed by the University of 89 1.2.2.2 ad * California, Berkeley and its contributors. 90 1.2.2.2 ad * 4. Neither the name of the University nor the names of its contributors 91 1.2.2.2 ad * may be used to endorse or promote products derived from this software 92 1.2.2.2 ad * without specific prior written permission. 93 1.2.2.2 ad * 94 1.2.2.2 ad * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 95 1.2.2.2 ad * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 96 1.2.2.2 ad * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 97 1.2.2.2 ad * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 98 1.2.2.2 ad * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 99 1.2.2.2 ad * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 100 1.2.2.2 ad * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 101 1.2.2.2 ad * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 102 1.2.2.2 ad * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 103 1.2.2.2 ad * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 104 1.2.2.2 ad * SUCH DAMAGE. 105 1.2.2.2 ad * 106 1.2.2.2 ad * @(#)clock.c 7.2 (Berkeley) 5/12/91 107 1.2.2.2 ad */ 108 1.2.2.2 ad /* 109 1.2.2.2 ad * Mach Operating System 110 1.2.2.2 ad * Copyright (c) 1991,1990,1989 Carnegie Mellon University 111 1.2.2.2 ad * All Rights Reserved. 112 1.2.2.2 ad * 113 1.2.2.2 ad * Permission to use, copy, modify and distribute this software and its 114 1.2.2.2 ad * documentation is hereby granted, provided that both the copyright 115 1.2.2.2 ad * notice and this permission notice appear in all copies of the 116 1.2.2.2 ad * software, derivative works or modified versions, and any portions 117 1.2.2.2 ad * thereof, and that both notices appear in supporting documentation. 118 1.2.2.2 ad * 119 1.2.2.2 ad * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 120 1.2.2.2 ad * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR 121 1.2.2.2 ad * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. 122 1.2.2.2 ad * 123 1.2.2.2 ad * Carnegie Mellon requests users of this software to return to 124 1.2.2.2 ad * 125 1.2.2.2 ad * Software Distribution Coordinator or Software.Distribution (at) CS.CMU.EDU 126 1.2.2.2 ad * School of Computer Science 127 1.2.2.2 ad * Carnegie Mellon University 128 1.2.2.2 ad * Pittsburgh PA 15213-3890 129 1.2.2.2 ad * 130 1.2.2.2 ad * any improvements or extensions that they make and grant Carnegie Mellon 131 1.2.2.2 ad * the rights to redistribute these changes. 132 1.2.2.2 ad */ 133 1.2.2.2 ad /* 134 1.2.2.2 ad Copyright 1988, 1989 by Intel Corporation, Santa Clara, California. 135 1.2.2.2 ad 136 1.2.2.2 ad All Rights Reserved 137 1.2.2.2 ad 138 1.2.2.2 ad Permission to use, copy, modify, and distribute this software and 139 1.2.2.2 ad its documentation for any purpose and without fee is hereby 140 1.2.2.2 ad granted, provided that the above copyright notice appears in all 141 1.2.2.2 ad copies and that both the copyright notice and this permission notice 142 1.2.2.2 ad appear in supporting documentation, and that the name of Intel 143 1.2.2.2 ad not be used in advertising or publicity pertaining to distribution 144 1.2.2.2 ad of the software without specific, written prior permission. 145 1.2.2.2 ad 146 1.2.2.2 ad INTEL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE 147 1.2.2.2 ad INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, 148 1.2.2.2 ad IN NO EVENT SHALL INTEL BE LIABLE FOR ANY SPECIAL, INDIRECT, OR 149 1.2.2.2 ad CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM 150 1.2.2.2 ad LOSS OF USE, DATA OR PROFITS, WHETHER IN ACTION OF CONTRACT, 151 1.2.2.2 ad NEGLIGENCE, OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION 152 1.2.2.2 ad WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 153 1.2.2.2 ad */ 154 1.2.2.2 ad 155 1.2.2.2 ad /* 156 1.2.2.2 ad * Primitive clock interrupt routines. 157 1.2.2.2 ad */ 158 1.2.2.2 ad 159 1.2.2.2 ad #include <sys/cdefs.h> 160 1.2.2.2 ad __KERNEL_RCSID(0, "$NetBSD: ds17485.c,v 1.2.2.2 2007/10/23 20:35:50 ad Exp $"); 161 1.2.2.2 ad 162 1.2.2.2 ad #include <sys/param.h> 163 1.2.2.2 ad #include <sys/systm.h> 164 1.2.2.2 ad #include <sys/kernel.h> 165 1.2.2.2 ad #include <sys/device.h> 166 1.2.2.2 ad 167 1.2.2.2 ad #include <machine/cpu.h> 168 1.2.2.2 ad #include <machine/intr.h> 169 1.2.2.2 ad #include <machine/bus.h> 170 1.2.2.2 ad 171 1.2.2.2 ad #include <dev/clock_subr.h> 172 1.2.2.2 ad #include <dev/ic/mc146818reg.h> 173 1.2.2.2 ad #include <dev/ic/mc146818var.h> 174 1.2.2.2 ad 175 1.2.2.2 ad #include <arch/evbppc/pmppc/dev/mainbus.h> 176 1.2.2.2 ad #include <machine/pmppc.h> 177 1.2.2.2 ad 178 1.2.2.2 ad static int rtc_match(struct device *, struct cfdata *, void *); 179 1.2.2.2 ad static void rtc_attach(struct device *, struct device *, void *); 180 1.2.2.2 ad 181 1.2.2.2 ad static u_int rtc_read(struct mc146818_softc *, u_int); 182 1.2.2.2 ad static void rtc_write(struct mc146818_softc *, u_int, u_int); 183 1.2.2.2 ad 184 1.2.2.2 ad CFATTACH_DECL(rtc, sizeof(struct mc146818_softc), 185 1.2.2.2 ad rtc_match, rtc_attach, NULL, NULL); 186 1.2.2.2 ad 187 1.2.2.2 ad static int rtc_attached = 0; 188 1.2.2.2 ad int 189 1.2.2.2 ad rtc_match(struct device *parent, struct cfdata *cf, void *aux) 190 1.2.2.2 ad { 191 1.2.2.2 ad struct mainbus_attach_args *maa = aux; 192 1.2.2.2 ad 193 1.2.2.2 ad return (!rtc_attached && strcmp(maa->mb_name, "rtc") == 0); 194 1.2.2.2 ad } 195 1.2.2.2 ad 196 1.2.2.2 ad void 197 1.2.2.2 ad rtc_attach(struct device *parent, struct device *self, void *aux) 198 1.2.2.2 ad { 199 1.2.2.2 ad struct mc146818_softc *sc = (struct mc146818_softc *)self; 200 1.2.2.2 ad struct mainbus_attach_args *maa = aux; 201 1.2.2.2 ad 202 1.2.2.2 ad sc->sc_bst = maa->mb_bt; 203 1.2.2.2 ad if (bus_space_map(sc->sc_bst, maa->mb_addr, PMPPC_RTC_SIZE, 0, 204 1.2.2.2 ad &sc->sc_bsh)) { 205 1.2.2.2 ad printf("%s: can't map i/o space\n", self->dv_xname); 206 1.2.2.2 ad return; 207 1.2.2.2 ad } 208 1.2.2.2 ad 209 1.2.2.2 ad rtc_attached = 1; 210 1.2.2.2 ad #ifdef DEBUG 211 1.2.2.2 ad rtc_print(); 212 1.2.2.2 ad #endif 213 1.2.2.2 ad rtc_write(sc, MC_REGA, MC_BASE_32_KHz | MC_RATE_1024_Hz); 214 1.2.2.2 ad rtc_write(sc, MC_REGB, MC_REGB_24HR); 215 1.2.2.2 ad 216 1.2.2.2 ad sc->sc_mcread = rtc_read; 217 1.2.2.2 ad sc->sc_mcwrite = rtc_write; 218 1.2.2.2 ad sc->sc_flag = 0; 219 1.2.2.2 ad sc->sc_year0 = 1900; 220 1.2.2.2 ad mc146818_attach(sc); 221 1.2.2.2 ad 222 1.2.2.2 ad todr_attach(&sc->sc_handle); 223 1.2.2.2 ad /* printf(": Dallas Semiconductor DS17485\n"); */ 224 1.2.2.2 ad printf("\n"); 225 1.2.2.2 ad } 226 1.2.2.2 ad 227 1.2.2.2 ad u_int 228 1.2.2.2 ad rtc_read(struct mc146818_softc *sc, u_int reg) 229 1.2.2.2 ad { 230 1.2.2.2 ad 231 1.2.2.2 ad return (bus_space_read_1(sc->sc_bst, sc->sc_bsh, reg)); 232 1.2.2.2 ad } 233 1.2.2.2 ad 234 1.2.2.2 ad void 235 1.2.2.2 ad rtc_write(struct mc146818_softc *sc, u_int reg, u_int datum) 236 1.2.2.2 ad { 237 1.2.2.2 ad 238 1.2.2.2 ad bus_space_write_1(sc->sc_bst, sc->sc_bsh, reg, datum); 239 1.2.2.2 ad } 240
Indexes created Sat Oct 18 23:09:54 GMT 2025