1/* $NetBSD: mpu_isa.c,v 1.23 2016/07/14 10:19:06 msaitoh 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: mpu_isa.c,v 1.23 2016/07/14 10:19:06 msaitoh 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/midiio.h> 43 44#include <sys/bus.h> 45 46#include <dev/midi_if.h> 47 48#include <dev/isa/isavar.h> 49#include <dev/ic/mpuvar.h> 50 51struct mpu_isa_softc { 52 device_t sc_dev; 53 struct mpu_softc sc_mpu; /* generic part */ 54 void *sc_ih; /* ISA interrupt handler */ 55 kmutex_t sc_lock; 56}; 57 58static int mpu_isa_match(device_t, cfdata_t, void *); 59static void mpu_isa_attach(device_t, device_t, void *); 60 61CFATTACH_DECL_NEW(mpu_isa, sizeof(struct mpu_isa_softc), 62 mpu_isa_match, mpu_isa_attach, NULL, NULL); 63 64static int 65mpu_isa_match(device_t parent, cfdata_t match, void *aux) 66{ 67 struct isa_attach_args *ia = aux; 68 struct mpu_isa_softc sc; 69 int r; 70 71 if (ia->ia_nio < 1) 72 return 0; 73 if (ia->ia_nirq < 1) 74 return 0; 75 76 if (ISA_DIRECT_CONFIG(ia)) 77 return 0; 78 79 if (ia->ia_io[0].ir_addr == ISA_UNKNOWN_PORT) 80 return 0; 81 if (ia->ia_irq[0].ir_irq == ISA_UNKNOWN_IRQ) 82 return 0; 83 84 memset(&sc, 0, sizeof sc); 85 sc.sc_mpu.iot = ia->ia_iot; 86 if (bus_space_map(sc.sc_mpu.iot, ia->ia_io[0].ir_addr, MPU401_NPORT, 0, 87 &sc.sc_mpu.ioh)) 88 return 0; 89 r = mpu_find(&sc.sc_mpu); 90 bus_space_unmap(sc.sc_mpu.iot, sc.sc_mpu.ioh, MPU401_NPORT); 91 if (r) { 92 ia->ia_nio = 1; 93 ia->ia_io[0].ir_size = MPU401_NPORT; 94 95 ia->ia_nirq = 1; 96 97 ia->ia_niomem = 0; 98 ia->ia_ndrq = 0; 99 } 100 return r; 101} 102 103static void 104mpu_isa_attach(device_t parent, device_t self, void *aux) 105{ 106 struct mpu_isa_softc *sc = device_private(self); 107 struct isa_attach_args *ia = aux; 108 109 aprint_naive("\n"); 110 aprint_normal("\n"); 111 112 if (bus_space_map(sc->sc_mpu.iot, ia->ia_io[0].ir_addr, MPU401_NPORT, 113 0, &sc->sc_mpu.ioh)) { 114 aprint_error_dev(self, 115 "mpu_isa_attach: bus_space_map failed\n"); 116 return; 117 } 118 119 sc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq[0].ir_irq, 120 IST_EDGE, IPL_AUDIO, mpu_intr, &sc->sc_mpu); 121 122 sc->sc_mpu.model = "Roland MPU-401 MIDI UART"; 123 sc->sc_dev = self; 124 sc->sc_mpu.lock = &sc->sc_lock; 125 mutex_init(&sc->sc_lock, MUTEX_DEFAULT, IPL_AUDIO); 126 mpu_attach(&sc->sc_mpu); 127} 128