123 lines
3.6 KiB
C
123 lines
3.6 KiB
C
/* $NetBSD: mpu_isa.c,v 1.20 2008/04/28 20:23:52 martin Exp $ */
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/*-
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* Copyright (c) 1999 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Lennart Augustsson.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: mpu_isa.c,v 1.20 2008/04/28 20:23:52 martin Exp $");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/errno.h>
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#include <sys/device.h>
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#include <sys/proc.h>
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#include <sys/conf.h>
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#include <sys/midiio.h>
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#include <sys/bus.h>
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#include <dev/midi_if.h>
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#include <dev/isa/isavar.h>
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#include <dev/ic/mpuvar.h>
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struct mpu_isa_softc {
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device_t sc_dev;
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struct mpu_softc sc_mpu; /* generic part */
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void *sc_ih; /* ISA interrupt handler */
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};
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static int mpu_isa_match(device_t, cfdata_t, void *);
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static void mpu_isa_attach(device_t, device_t, void *);
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CFATTACH_DECL_NEW(mpu_isa, sizeof(struct mpu_isa_softc),
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mpu_isa_match, mpu_isa_attach, NULL, NULL);
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static int
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mpu_isa_match(device_t parent, cfdata_t match, void *aux)
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{
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struct isa_attach_args *ia = aux;
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struct mpu_isa_softc sc;
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int r;
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if (ia->ia_nio < 1)
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return 0;
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if (ia->ia_nirq < 1)
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return 0;
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if (ISA_DIRECT_CONFIG(ia))
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return 0;
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if (ia->ia_io[0].ir_addr == ISA_UNKNOWN_PORT)
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return 0;
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if (ia->ia_irq[0].ir_irq == ISA_UNKNOWN_IRQ)
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return 0;
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memset(&sc, 0, sizeof sc);
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sc.sc_mpu.iot = ia->ia_iot;
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if (bus_space_map(sc.sc_mpu.iot, ia->ia_io[0].ir_addr, MPU401_NPORT, 0,
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&sc.sc_mpu.ioh))
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return 0;
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r = mpu_find(&sc.sc_mpu);
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bus_space_unmap(sc.sc_mpu.iot, sc.sc_mpu.ioh, MPU401_NPORT);
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if (r) {
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ia->ia_nio = 1;
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ia->ia_io[0].ir_size = MPU401_NPORT;
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ia->ia_nirq = 1;
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ia->ia_niomem = 0;
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ia->ia_ndrq = 0;
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}
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return r;
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}
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static void
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mpu_isa_attach(device_t parent, device_t self, void *aux)
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{
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struct mpu_isa_softc *sc = device_private(self);
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struct isa_attach_args *ia = aux;
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aprint_normal("\n");
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if (bus_space_map(sc->sc_mpu.iot, ia->ia_io[0].ir_addr, MPU401_NPORT,
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0, &sc->sc_mpu.ioh)) {
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printf("mpu_isa_attach: bus_space_map failed\n");
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return;
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}
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sc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq[0].ir_irq,
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IST_EDGE, IPL_AUDIO, mpu_intr, &sc->sc_mpu);
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sc->sc_mpu.model = "Roland MPU-401 MIDI UART";
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sc->sc_dev = self;
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mpu_attach(&sc->sc_mpu);
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}
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