1 /* $NetBSD: opl_isa.c,v 1.23 2022/09/24 23:21:59 thorpej Exp $ */ 2 3 /*- 4 * Copyright (c) 1999, 2008 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, and by Andrew Doran. 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 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #include <sys/cdefs.h> 33 __KERNEL_RCSID(0, "$NetBSD: opl_isa.c,v 1.23 2022/09/24 23:21:59 thorpej Exp $"); 34 35 #include <sys/param.h> 36 #include <sys/systm.h> 37 #include <sys/kernel.h> 38 #include <sys/errno.h> 39 #include <sys/device.h> 40 #include <sys/proc.h> 41 #include <sys/conf.h> 42 #include <sys/select.h> 43 #include <sys/audioio.h> 44 #include <sys/midiio.h> 45 46 #include <sys/bus.h> 47 48 #include <dev/audio/audio_if.h> 49 #include <dev/midi_if.h> 50 51 #include <dev/ic/oplreg.h> 52 #include <dev/ic/oplvar.h> 53 54 #include <dev/isa/isavar.h> 55 56 #define OPL_SIZE 4 57 58 int opl_isa_match(device_t, cfdata_t, void *); 59 void opl_isa_attach(device_t, device_t, void *); 60 61 struct opl_isa_softc { 62 struct opl_softc sc_opl; 63 kmutex_t sc_lock; 64 }; 65 66 CFATTACH_DECL_NEW(opl_isa, sizeof(struct opl_isa_softc), 67 opl_isa_match, opl_isa_attach, NULL, NULL); 68 69 int 70 opl_isa_match(device_t parent, cfdata_t match, void *aux) 71 { 72 struct isa_attach_args *ia = aux; 73 bus_space_handle_t ioh; 74 int r; 75 76 if (ia->ia_nio < 1) 77 return (0); 78 79 if (ISA_DIRECT_CONFIG(ia)) 80 return (0); 81 82 if (ia->ia_io[0].ir_addr == ISA_UNKNOWN_PORT) 83 return (0); 84 85 if (bus_space_map(ia->ia_iot, ia->ia_io[0].ir_addr, OPL_SIZE, 0, &ioh)) 86 return (0); 87 r = opl_match(ia->ia_iot, ioh, 0); 88 bus_space_unmap(ia->ia_iot, ioh, OPL_SIZE); 89 if (r != 0) { 90 ia->ia_nio = 1; 91 ia->ia_io[0].ir_size = OPL_SIZE; 92 93 ia->ia_nirq = 0; 94 ia->ia_niomem = 0; 95 ia->ia_ndrq = 0; 96 } 97 return (r); 98 } 99 100 void 101 opl_isa_attach(device_t parent, device_t self, void *aux) 102 { 103 struct opl_softc *sc = device_private(self); 104 struct opl_isa_softc *isa = device_private(self); 105 struct isa_attach_args *ia = aux; 106 107 sc->dev = self; 108 sc->iot = ia->ia_iot; 109 110 if (bus_space_map(sc->iot, ia->ia_io[0].ir_addr, OPL_SIZE, 111 0, &sc->ioh)) { 112 aprint_error("opl_isa_attach: bus_space_map failed\n"); 113 return; 114 } 115 sc->offs = 0; 116 sc->lock = &isa->sc_lock; 117 mutex_init(&isa->sc_lock, MUTEX_DEFAULT, IPL_NONE); 118 119 opl_attach(sc); 120 } 121