1 /* $NetBSD: mpu_isa.c,v 1.9 2002/10/02 03:10:49 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 1.9 2002/10/02 03:10:49 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 CFATTACH_DECL(mpu_isa, sizeof(struct mpu_isa_softc), 67 mpu_isa_match, mpu_isa_attach, NULL, NULL); 68 69 int 70 mpu_isa_match(parent, match, aux) 71 struct device *parent; 72 struct cfdata *match; 73 void *aux; 74 { 75 struct isa_attach_args *ia = aux; 76 struct mpu_isa_softc sc; 77 int r; 78 79 if (ia->ia_nio < 1) 80 return (0); 81 if (ia->ia_nirq < 1) 82 return (0); 83 84 if (ISA_DIRECT_CONFIG(ia)) 85 return (0); 86 87 if (ia->ia_io[0].ir_addr == ISACF_PORT_DEFAULT) 88 return (0); 89 if (ia->ia_irq[0].ir_irq == ISACF_IRQ_DEFAULT) 90 return (0); 91 92 memset(&sc, 0, sizeof sc); 93 sc.sc_mpu.iot = ia->ia_iot; 94 if (bus_space_map(sc.sc_mpu.iot, ia->ia_io[0].ir_addr, MPU401_NPORT, 0, 95 &sc.sc_mpu.ioh)) 96 return (0); 97 r = mpu_find(&sc.sc_mpu); 98 bus_space_unmap(sc.sc_mpu.iot, sc.sc_mpu.ioh, MPU401_NPORT); 99 if (r) { 100 ia->ia_nio = 1; 101 ia->ia_io[0].ir_size = MPU401_NPORT; 102 103 ia->ia_nirq = 1; 104 105 ia->ia_niomem = 0; 106 ia->ia_ndrq = 0; 107 } 108 return (r); 109 } 110 111 void 112 mpu_isa_attach(parent, self, aux) 113 struct device *parent; 114 struct device *self; 115 void *aux; 116 { 117 struct mpu_isa_softc *sc = (struct mpu_isa_softc *)self; 118 struct isa_attach_args *ia = aux; 119 120 printf("\n"); 121 122 if (bus_space_map(sc->sc_mpu.iot, ia->ia_io[0].ir_addr, MPU401_NPORT, 123 0, &sc->sc_mpu.ioh)) { 124 printf("mpu_isa_attach: bus_space_map failed\n"); 125 return; 126 } 127 128 sc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq[0].ir_irq, 129 IST_EDGE, IPL_AUDIO, mpu_intr, sc); 130 131 sc->sc_mpu.model = "Roland MPU-401 MIDI UART"; 132 mpu_attach(&sc->sc_mpu); 133 } 134