1 /* $NetBSD: lm_isa.c,v 1.12 2006/10/12 01:31:17 christos 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 1.12 2006/10/12 01:31:17 christos 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(struct device *parent __unused, struct cfdata *match __unused, 81 void *aux) 82 { 83 bus_space_tag_t iot; 84 bus_space_handle_t ioh; 85 struct isa_attach_args *ia = aux; 86 int iobase; 87 int rv; 88 89 /* Must supply an address */ 90 if (ia->ia_nio < 1) 91 return (0); 92 93 if (ISA_DIRECT_CONFIG(ia)) 94 return (0); 95 96 if (ia->ia_io[0].ir_addr == ISA_UNKNOWN_PORT) 97 return (0); 98 99 iot = ia->ia_iot; 100 iobase = ia->ia_io[0].ir_addr; 101 102 if (bus_space_map(iot, iobase, 8, 0, &ioh)) 103 return (0); 104 105 106 /* Bus independent probe */ 107 rv = lm_probe(iot, ioh); 108 109 bus_space_unmap(iot, ioh, 8); 110 111 if (rv) { 112 ia->ia_nio = 1; 113 ia->ia_io[0].ir_size = 8; 114 115 ia->ia_niomem = 0; 116 ia->ia_nirq = 0; 117 ia->ia_ndrq = 0; 118 } 119 120 return (rv); 121 } 122 123 124 void 125 lm_isa_attach(struct device *parent __unused, struct device *self, void *aux) 126 { 127 struct lm_softc *lmsc = (void *)self; 128 int iobase; 129 bus_space_tag_t iot; 130 struct isa_attach_args *ia = aux; 131 132 iobase = ia->ia_io[0].ir_addr; 133 iot = lmsc->lm_iot = ia->ia_iot; 134 135 if (bus_space_map(iot, iobase, 8, 0, &lmsc->lm_ioh)) { 136 printf(": can't map i/o space\n"); 137 return; 138 } 139 140 /* Bus-independant attachment */ 141 lmsc->lm_writereg = lm_isa_writereg; 142 lmsc->lm_readreg = lm_isa_readreg; 143 144 lm_attach(lmsc); 145 } 146 147 148 u_int8_t 149 lm_isa_readreg(sc, reg) 150 struct lm_softc *sc; 151 int reg; 152 { 153 bus_space_write_1(sc->lm_iot, sc->lm_ioh, LMC_ADDR, reg); 154 return (bus_space_read_1(sc->lm_iot, sc->lm_ioh, LMC_DATA)); 155 } 156 157 158 void 159 lm_isa_writereg(sc, reg, val) 160 struct lm_softc *sc; 161 int reg; 162 int val; 163 { 164 bus_space_write_1(sc->lm_iot, sc->lm_ioh, LMC_ADDR, reg); 165 bus_space_write_1(sc->lm_iot, sc->lm_ioh, LMC_DATA, val); 166 } 167