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opl_isa.c revision 1.2 
      1 /*	$NetBSD: opl_isa.c,v 1.2 1999/04/13 20:37:21 augustss 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/param.h>
     40 #include <sys/systm.h>
     41 #include <sys/kernel.h>
     42 #include <sys/errno.h>
     43 #include <sys/device.h>
     44 #include <sys/malloc.h>
     45 #include <sys/proc.h>
     46 #include <sys/conf.h>
     47 #include <sys/select.h>
     48 #include <sys/audioio.h>
     49 #include <sys/midiio.h>
     50 
     51 #include <machine/bus.h>
     52 
     53 #include <dev/audio_if.h>
     54 #include <dev/midi_if.h>
     55 
     56 #include <dev/ic/oplreg.h>
     57 #include <dev/ic/oplvar.h>
     58 
     59 #include <dev/isa/isavar.h>
     60 
     61 #define OPL_SIZE 4
     62 
     63 int	opl_isa_match __P((struct device *, struct cfdata *, void *));
     64 void	opl_isa_attach __P((struct device *, struct device *, void *));
     65 
     66 struct cfattach opl_isa_ca = {
     67 	sizeof (struct opl_softc), opl_isa_match, opl_isa_attach
     68 };
     69 
     70 int
     71 opl_isa_match(parent, match, aux)
     72 	struct device *parent;
     73 	struct cfdata *match;
     74 	void *aux;
     75 {
     76 	struct isa_attach_args *ia = aux;
     77 	struct opl_softc sc;
     78 	int r;
     79 
     80 	memset(&sc, 0, sizeof sc);
     81 	sc.iot = ia->ia_iot;
     82 	if (bus_space_map(sc.iot, ia->ia_iobase, OPL_SIZE, 0, &sc.ioh))
     83 		return (0);
     84 	r = opl_find(&sc);
     85         bus_space_unmap(sc.iot, sc.ioh, OPL_SIZE);
     86 	return (r);
     87 }
     88 
     89 void
     90 opl_isa_attach(parent, self, aux)
     91 	struct device *parent;
     92 	struct device *self;
     93 	void *aux;
     94 {
     95 	struct opl_softc *sc = (struct opl_softc *)self;
     96 	struct isa_attach_args *ia = aux;
     97 
     98 	if (bus_space_map(sc->iot, ia->ia_iobase, OPL_SIZE, 0, &sc->ioh)) {
     99 		printf("opl_isa_attach: bus_space_map failed\n");
    100 		return;
    101 	}
    102 	sc->offs = 0;
    103 
    104 	opl_attach(sc);
    105 }
    106