1 /* $NetBSD: lm_isa.c,v 1.9 2002/11/15 14:55:44 ad Exp $ */ 2 3 /*- 4 * Copyright (c) 2000 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Bill Squier. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 #include <sys/cdefs.h> 40 __KERNEL_RCSID(0, "$NetBSD: lm_isa.c,v 1.9 2002/11/15 14:55:44 ad Exp $"); 41 42 #include <sys/param.h> 43 #include <sys/systm.h> 44 #include <sys/kernel.h> 45 #include <sys/proc.h> 46 #include <sys/device.h> 47 #include <sys/malloc.h> 48 #include <sys/errno.h> 49 #include <sys/conf.h> 50 51 #include <machine/bus.h> 52 53 #include <dev/isa/isareg.h> 54 #include <dev/isa/isavar.h> 55 56 #include <machine/intr.h> 57 #include <machine/bus.h> 58 59 #include <dev/sysmon/sysmonvar.h> 60 61 #include <dev/ic/nslm7xvar.h> 62 63 #if defined(LMDEBUG) 64 #define DPRINTF(x) do { printf x; } while (0) 65 #else 66 #define DPRINTF(x) 67 #endif 68 69 70 int lm_isa_match(struct device *, struct cfdata *, void *); 71 void lm_isa_attach(struct device *, struct device *, void *); 72 u_int8_t lm_isa_readreg(struct lm_softc *, int); 73 void lm_isa_writereg(struct lm_softc *, int, int); 74 75 CFATTACH_DECL(lm_isa, sizeof(struct lm_softc), 76 lm_isa_match, lm_isa_attach, NULL, NULL); 77 78 79 int 80 lm_isa_match(parent, match, aux) 81 struct device *parent; 82 struct cfdata *match; 83 void *aux; 84 { 85 bus_space_tag_t iot; 86 bus_space_handle_t ioh; 87 struct isa_attach_args *ia = aux; 88 int iobase; 89 int rv; 90 91 /* Must supply an address */ 92 if (ia->ia_nio < 1) 93 return (0); 94 95 if (ISA_DIRECT_CONFIG(ia)) 96 return (0); 97 98 if (ia->ia_io[0].ir_addr == ISACF_PORT_DEFAULT) 99 return (0); 100 101 iot = ia->ia_iot; 102 iobase = ia->ia_io[0].ir_addr; 103 104 if (bus_space_map(iot, iobase, 8, 0, &ioh)) 105 return (0); 106 107 108 /* Bus independent probe */ 109 rv = lm_probe(iot, ioh); 110 111 bus_space_unmap(iot, ioh, 8); 112 113 if (rv) { 114 ia->ia_nio = 1; 115 ia->ia_io[0].ir_size = 8; 116 117 ia->ia_niomem = 0; 118 ia->ia_nirq = 0; 119 ia->ia_ndrq = 0; 120 } 121 122 return (rv); 123 } 124 125 126 void 127 lm_isa_attach(parent, self, aux) 128 struct device *parent, *self; 129 void *aux; 130 { 131 struct lm_softc *lmsc = (void *)self; 132 int iobase; 133 bus_space_tag_t iot; 134 struct isa_attach_args *ia = aux; 135 136 iobase = ia->ia_io[0].ir_addr; 137 iot = lmsc->lm_iot = ia->ia_iot; 138 139 if (bus_space_map(iot, iobase, 8, 0, &lmsc->lm_ioh)) { 140 printf(": can't map i/o space\n"); 141 return; 142 } 143 144 /* Bus-independant attachment */ 145 lmsc->lm_writereg = lm_isa_writereg; 146 lmsc->lm_readreg = lm_isa_readreg; 147 148 lm_attach(lmsc); 149 } 150 151 152 u_int8_t 153 lm_isa_readreg(sc, reg) 154 struct lm_softc *sc; 155 int reg; 156 { 157 bus_space_write_1(sc->lm_iot, sc->lm_ioh, LMC_ADDR, reg); 158 return (bus_space_read_1(sc->lm_iot, sc->lm_ioh, LMC_DATA)); 159 } 160 161 162 void 163 lm_isa_writereg(sc, reg, val) 164 struct lm_softc *sc; 165 int reg; 166 int val; 167 { 168 bus_space_write_1(sc->lm_iot, sc->lm_ioh, LMC_ADDR, reg); 169 bus_space_write_1(sc->lm_iot, sc->lm_ioh, LMC_DATA, val); 170 } 171