1 /* $NetBSD: mpu_isa.c,v 1.17 2007/10/19 12:00:21 ad 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 1.17 2007/10/19 12:00:21 ad 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 <sys/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(struct device *, struct cfdata *, void *); 64 void mpu_isa_attach(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(struct device *parent, struct cfdata *match, 71 void *aux) 72 { 73 struct isa_attach_args *ia = aux; 74 struct mpu_isa_softc sc; 75 int r; 76 77 if (ia->ia_nio < 1) 78 return (0); 79 if (ia->ia_nirq < 1) 80 return (0); 81 82 if (ISA_DIRECT_CONFIG(ia)) 83 return (0); 84 85 if (ia->ia_io[0].ir_addr == ISA_UNKNOWN_PORT) 86 return (0); 87 if (ia->ia_irq[0].ir_irq == ISA_UNKNOWN_IRQ) 88 return (0); 89 90 memset(&sc, 0, sizeof sc); 91 sc.sc_mpu.iot = ia->ia_iot; 92 if (bus_space_map(sc.sc_mpu.iot, ia->ia_io[0].ir_addr, MPU401_NPORT, 0, 93 &sc.sc_mpu.ioh)) 94 return (0); 95 r = mpu_find(&sc.sc_mpu); 96 bus_space_unmap(sc.sc_mpu.iot, sc.sc_mpu.ioh, MPU401_NPORT); 97 if (r) { 98 ia->ia_nio = 1; 99 ia->ia_io[0].ir_size = MPU401_NPORT; 100 101 ia->ia_nirq = 1; 102 103 ia->ia_niomem = 0; 104 ia->ia_ndrq = 0; 105 } 106 return (r); 107 } 108 109 void 110 mpu_isa_attach(struct device *parent, struct device *self, void *aux) 111 { 112 struct mpu_isa_softc *sc = (struct mpu_isa_softc *)self; 113 struct isa_attach_args *ia = aux; 114 115 printf("\n"); 116 117 if (bus_space_map(sc->sc_mpu.iot, ia->ia_io[0].ir_addr, MPU401_NPORT, 118 0, &sc->sc_mpu.ioh)) { 119 printf("mpu_isa_attach: bus_space_map failed\n"); 120 return; 121 } 122 123 sc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq[0].ir_irq, 124 IST_EDGE, IPL_AUDIO, mpu_intr, sc); 125 126 sc->sc_mpu.model = "Roland MPU-401 MIDI UART"; 127 mpu_attach(&sc->sc_mpu); 128 } 129