1 /* $NetBSD: tsdio.c,v 1.3 2005/12/11 12:22:03 christos Exp $ */ 2 3 /*- 4 * Copyright (c) 2005 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Jesse Off 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: tsdio.c,v 1.3 2005/12/11 12:22:03 christos Exp $"); 41 42 #include <sys/param.h> 43 #include <sys/systm.h> 44 #include <sys/device.h> 45 46 #include <machine/bus.h> 47 #include <machine/intr.h> 48 49 #include <dev/isa/isareg.h> 50 #include <dev/isa/isavar.h> 51 #include <dev/isa/isadmavar.h> 52 #include <dev/isa/tsdiovar.h> 53 54 int tsdio_probe(struct device *, struct cfdata *, void *); 55 void tsdio_attach(struct device *, struct device *, void *); 56 int tsdio_search(struct device *, struct cfdata *, const int *, void *); 57 int tsdio_print(void *, const char *); 58 59 CFATTACH_DECL(tsdio, sizeof(struct tsdio_softc), 60 tsdio_probe, tsdio_attach, NULL, NULL); 61 62 int 63 tsdio_probe(parent, cf, aux) 64 struct device *parent; 65 struct cfdata *cf; 66 void *aux; 67 { 68 struct isa_attach_args *ia = aux; 69 bus_space_tag_t iot = ia->ia_iot; 70 bus_space_handle_t dioh; 71 int rv = 0, have_io = 0; 72 73 if (ia->ia_nio < 1) 74 return (0); 75 if (ia->ia_nirq < 1) 76 return (0); 77 78 if (ISA_DIRECT_CONFIG(ia)) 79 return (0); 80 81 /* 82 * Disallow wildcarded I/O base. 83 */ 84 if (ia->ia_io[0].ir_addr == ISA_UNKNOWN_PORT) 85 return (0); 86 87 /* 88 * Map the I/O space. 89 */ 90 if (bus_space_map(ia->ia_iot, ia->ia_io[0].ir_addr, 8, 91 0, &dioh)) 92 goto out; 93 have_io = 1; 94 95 if (bus_space_read_1(ia->ia_iot, dioh, 0) != 0x54) { 96 goto out; 97 } 98 99 rv = 1; 100 ia->ia_nio = 1; 101 ia->ia_io[0].ir_size = 8; 102 ia->ia_niomem = 0; 103 ia->ia_nirq = 0; 104 ia->ia_ndrq = 0; 105 106 out: 107 if (have_io) 108 bus_space_unmap(iot, dioh, 8); 109 110 return (rv); 111 } 112 113 void 114 tsdio_attach(parent, self, aux) 115 struct device *parent, *self; 116 void *aux; 117 { 118 struct tsdio_softc *sc = (struct tsdio_softc *) self; 119 struct isa_attach_args *ia = aux; 120 121 sc->sc_iot = ia->ia_iot; 122 123 aprint_normal(": Technologic Systems TS-DIO24\n"); 124 125 /* 126 * Map the device. 127 */ 128 if (bus_space_map(sc->sc_iot, ia->ia_io[0].ir_addr, 8, 129 0, &sc->sc_ioh)) { 130 aprint_error("%s: unable to map i/o space\n", sc->sc_dev.dv_xname); 131 return; 132 } 133 134 /* 135 * Attach sub-devices 136 */ 137 config_search_ia(tsdio_search, self, "tsdio", NULL); 138 } 139 140 int 141 tsdio_search(parent, cf, l, aux) 142 struct device *parent; 143 struct cfdata *cf; 144 const int *l; 145 void *aux; 146 { 147 struct tsdio_softc *sc = (struct tsdio_softc *)parent; 148 struct tsdio_attach_args sa; 149 150 sa.ta_iot = sc->sc_iot; 151 sa.ta_ioh = sc->sc_ioh; 152 153 if (config_match(parent, cf, &sa) > 0) 154 config_attach(parent, cf, &sa, tsdio_print); 155 156 return (0); 157 } 158 159 int 160 tsdio_print(aux, name) 161 void *aux; 162 const char *name; 163 { 164 165 return (UNCONF); 166 } 167