128 lines
3.8 KiB
C
128 lines
3.8 KiB
C
/* $NetBSD: opl_isa.c,v 1.9 2002/10/02 03:10:49 thorpej 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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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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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: opl_isa.c,v 1.9 2002/10/02 03:10:49 thorpej 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/malloc.h>
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#include <sys/proc.h>
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#include <sys/conf.h>
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#include <sys/select.h>
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#include <sys/audioio.h>
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#include <sys/midiio.h>
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#include <machine/bus.h>
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#include <dev/audio_if.h>
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#include <dev/midi_if.h>
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#include <dev/ic/oplreg.h>
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#include <dev/ic/oplvar.h>
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#include <dev/isa/isavar.h>
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#define OPL_SIZE 4
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int opl_isa_match __P((struct device *, struct cfdata *, void *));
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void opl_isa_attach __P((struct device *, struct device *, void *));
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CFATTACH_DECL(opl_isa, sizeof(struct opl_softc),
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opl_isa_match, opl_isa_attach, NULL, NULL);
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int
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opl_isa_match(parent, match, aux)
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struct device *parent;
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struct cfdata *match;
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void *aux;
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{
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struct isa_attach_args *ia = aux;
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struct opl_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 (ISA_DIRECT_CONFIG(ia))
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return (0);
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if (ia->ia_io[0].ir_addr == ISACF_PORT_DEFAULT)
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return (0);
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memset(&sc, 0, sizeof sc);
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sc.iot = ia->ia_iot;
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if (bus_space_map(sc.iot, ia->ia_io[0].ir_addr, OPL_SIZE, 0, &sc.ioh))
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return (0);
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r = opl_find(&sc);
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bus_space_unmap(sc.iot, sc.ioh, OPL_SIZE);
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if (r != 0) {
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ia->ia_nio = 1;
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ia->ia_io[0].ir_size = OPL_SIZE;
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ia->ia_nirq = 0;
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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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void
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opl_isa_attach(parent, self, aux)
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struct device *parent;
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struct device *self;
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void *aux;
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{
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struct opl_softc *sc = (struct opl_softc *)self;
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struct isa_attach_args *ia = aux;
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sc->iot = ia->ia_iot;
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if (bus_space_map(sc->iot, ia->ia_io[0].ir_addr, OPL_SIZE,
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0, &sc->ioh)) {
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printf("opl_isa_attach: bus_space_map failed\n");
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return;
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}
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sc->offs = 0;
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opl_attach(sc);
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}
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