1 /* $NetBSD: opl_isa.c,v 1.6 2002/01/07 21:47:11 thorpej Exp $ */ 2 3 /*- 4 * Copyright (c) 1999 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Lennart Augustsson. 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: opl_isa.c,v 1.6 2002/01/07 21:47:11 thorpej Exp $"); 41 42 #include <sys/param.h> 43 #include <sys/systm.h> 44 #include <sys/kernel.h> 45 #include <sys/errno.h> 46 #include <sys/device.h> 47 #include <sys/malloc.h> 48 #include <sys/proc.h> 49 #include <sys/conf.h> 50 #include <sys/select.h> 51 #include <sys/audioio.h> 52 #include <sys/midiio.h> 53 54 #include <machine/bus.h> 55 56 #include <dev/audio_if.h> 57 #include <dev/midi_if.h> 58 59 #include <dev/ic/oplreg.h> 60 #include <dev/ic/oplvar.h> 61 62 #include <dev/isa/isavar.h> 63 64 #define OPL_SIZE 4 65 66 int opl_isa_match __P((struct device *, struct cfdata *, void *)); 67 void opl_isa_attach __P((struct device *, struct device *, void *)); 68 69 struct cfattach opl_isa_ca = { 70 sizeof (struct opl_softc), opl_isa_match, opl_isa_attach 71 }; 72 73 int 74 opl_isa_match(parent, match, aux) 75 struct device *parent; 76 struct cfdata *match; 77 void *aux; 78 { 79 struct isa_attach_args *ia = aux; 80 struct opl_softc sc; 81 int r; 82 83 if (ia->ia_nio < 1) 84 return (0); 85 86 if (ISA_DIRECT_CONFIG(ia)) 87 return (0); 88 89 if (ia->ia_io[0].ir_addr == ISACF_PORT_DEFAULT) 90 return (0); 91 92 memset(&sc, 0, sizeof sc); 93 sc.iot = ia->ia_iot; 94 if (bus_space_map(sc.iot, ia->ia_io[0].ir_addr, OPL_SIZE, 0, &sc.ioh)) 95 return (0); 96 r = opl_find(&sc); 97 bus_space_unmap(sc.iot, sc.ioh, OPL_SIZE); 98 if (r != 0) { 99 ia->ia_nio = 1; 100 ia->ia_io[0].ir_size = OPL_SIZE; 101 102 ia->ia_nirq = 0; 103 ia->ia_niomem = 0; 104 ia->ia_ndrq = 0; 105 } 106 return (r); 107 } 108 109 void 110 opl_isa_attach(parent, self, aux) 111 struct device *parent; 112 struct device *self; 113 void *aux; 114 { 115 struct opl_softc *sc = (struct opl_softc *)self; 116 struct isa_attach_args *ia = aux; 117 118 sc->iot = ia->ia_iot; 119 120 if (bus_space_map(sc->iot, ia->ia_io[0].ir_addr, OPL_SIZE, 121 0, &sc->ioh)) { 122 printf("opl_isa_attach: bus_space_map failed\n"); 123 return; 124 } 125 sc->offs = 0; 126 127 opl_attach(sc); 128 } 129