1 /* $NetBSD: mpu_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: mpu_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/proc.h> 48 #include <sys/conf.h> 49 #include <sys/midiio.h> 50 51 #include <machine/bus.h> 52 53 #include <dev/midi_if.h> 54 55 #include <dev/isa/isavar.h> 56 #include <dev/ic/mpuvar.h> 57 58 struct mpu_isa_softc { 59 struct mpu_softc sc_mpu; /* generic part */ 60 void *sc_ih; /* ISA interrupt handler */ 61 }; 62 63 int mpu_isa_match __P((struct device *, struct cfdata *, void *)); 64 void mpu_isa_attach __P((struct device *, struct device *, void *)); 65 66 struct cfattach mpu_isa_ca = { 67 sizeof (struct mpu_isa_softc), mpu_isa_match, mpu_isa_attach 68 }; 69 70 int 71 mpu_isa_match(parent, match, aux) 72 struct device *parent; 73 struct cfdata *match; 74 void *aux; 75 { 76 struct isa_attach_args *ia = aux; 77 struct mpu_isa_softc sc; 78 int r; 79 80 if (ia->ia_nio < 1) 81 return (0); 82 if (ia->ia_nirq < 1) 83 return (0); 84 85 if (ISA_DIRECT_CONFIG(ia)) 86 return (0); 87 88 if (ia->ia_io[0].ir_addr == ISACF_PORT_DEFAULT) 89 return (0); 90 if (ia->ia_irq[0].ir_irq == ISACF_IRQ_DEFAULT) 91 return (0); 92 93 memset(&sc, 0, sizeof sc); 94 sc.sc_mpu.iot = ia->ia_iot; 95 if (bus_space_map(sc.sc_mpu.iot, ia->ia_io[0].ir_addr, MPU401_NPORT, 0, 96 &sc.sc_mpu.ioh)) 97 return (0); 98 r = mpu_find(&sc.sc_mpu); 99 bus_space_unmap(sc.sc_mpu.iot, sc.sc_mpu.ioh, MPU401_NPORT); 100 if (r) { 101 ia->ia_nio = 1; 102 ia->ia_io[0].ir_size = MPU401_NPORT; 103 104 ia->ia_nirq = 1; 105 106 ia->ia_niomem = 0; 107 ia->ia_ndrq = 0; 108 } 109 return (r); 110 } 111 112 void 113 mpu_isa_attach(parent, self, aux) 114 struct device *parent; 115 struct device *self; 116 void *aux; 117 { 118 struct mpu_isa_softc *sc = (struct mpu_isa_softc *)self; 119 struct isa_attach_args *ia = aux; 120 121 printf("\n"); 122 123 if (bus_space_map(sc->sc_mpu.iot, ia->ia_io[0].ir_addr, MPU401_NPORT, 124 0, &sc->sc_mpu.ioh)) { 125 printf("mpu_isa_attach: bus_space_map failed\n"); 126 return; 127 } 128 129 sc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq[0].ir_irq, 130 IST_EDGE, IPL_AUDIO, mpu_intr, sc); 131 132 sc->sc_mpu.model = "Roland MPU-401 MIDI UART"; 133 mpu_attach(&sc->sc_mpu); 134 } 135