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midi_pcppi.c revision 1.4 
      1 /*	$NetBSD: midi_pcppi.c,v 1.4 1998/11/25 22:17:06 augustss Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1998 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 (augustss (at) netbsd.org).
      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 <dev/isa/pcppivar.h>
     52 
     53 #include <dev/audio_if.h>
     54 #include <dev/midi_if.h>
     55 #include <dev/midivar.h>
     56 #include <dev/midisynvar.h>
     57 
     58 #define MAX_DURATION 30		/* turn off sound automagically after 30 s */
     59 
     60 struct midi_pcppi_softc {
     61 	struct midi_softc sc_mididev;
     62 	midisyn sc_midisyn;
     63 };
     64 
     65 int	midi_pcppi_match __P((struct device *, struct cfdata *, void *));
     66 void	midi_pcppi_attach __P((struct device *, struct device *, void *));
     67 
     68 void	midi_pcppi_on    __P((midisyn *, u_int32_t, u_int32_t, u_int32_t));
     69 void	midi_pcppi_off   __P((midisyn *, u_int32_t, u_int32_t, u_int32_t));
     70 void	midi_pcppi_close __P((midisyn *));
     71 
     72 struct cfattach midi_pcppi_ca = {
     73 	sizeof(struct midi_pcppi_softc), midi_pcppi_match, midi_pcppi_attach
     74 };
     75 
     76 struct midisyn_methods midi_pcppi_hw = {
     77 	0,			/* open */
     78 	midi_pcppi_close,
     79 	0,			/* ioctl */
     80 	0,			/* allocv */
     81 	midi_pcppi_on,
     82 	midi_pcppi_off,
     83 	0,
     84 	0,
     85 	0,
     86 	0,
     87 	0,
     88 	0,
     89 };
     90 
     91 int midi_pcppi_attached = 0;	/* Not very nice */
     92 
     93 int
     94 midi_pcppi_match(parent, match, aux)
     95 	struct device *parent;
     96 	struct cfdata *match;
     97 	void *aux;
     98 {
     99 	return (!midi_pcppi_attached);
    100 }
    101 
    102 void
    103 midi_pcppi_attach(parent, self, aux)
    104 	struct device *parent;
    105 	struct device *self;
    106 	void *aux;
    107 {
    108 	struct midi_pcppi_softc *sc = (struct midi_pcppi_softc *)self;
    109 	struct pcppi_attach_args *pa = (struct pcppi_attach_args *)aux;
    110 	midisyn *ms;
    111 
    112 	ms = &sc->sc_midisyn;
    113 	ms->mets = &midi_pcppi_hw;
    114 	strcpy(ms->name, "PC speaker");
    115 	ms->nvoice = 1;
    116 	ms->flags = MS_DOALLOC | MS_FREQXLATE;
    117 	ms->data = pa->pa_cookie;
    118 
    119 	midi_pcppi_attached++;
    120 
    121 	midisyn_attach(&sc->sc_mididev, ms);
    122 	midi_attach(&sc->sc_mididev, parent);
    123 }
    124 
    125 void
    126 midi_pcppi_on(ms, chan, note, vel)
    127 	midisyn *ms;
    128 	u_int32_t chan, note, vel;
    129 {
    130 	pcppi_tag_t t = ms->data;
    131 
    132 	/*printf("ON  %p %d\n", t, MIDISYN_FREQ_TO_HZ(note));*/
    133 	pcppi_bell(t, MIDISYN_FREQ_TO_HZ(note), MAX_DURATION * hz, 0);
    134 }
    135 
    136 void
    137 midi_pcppi_off(ms, chan, note, vel)
    138 	midisyn *ms;
    139 	u_int32_t chan, note, vel;
    140 {
    141 	pcppi_tag_t t = ms->data;
    142 
    143 	/*printf("OFF %p %d\n", t, note >> 16);*/
    144 	pcppi_bell(t, 0, 0, 0);
    145 }
    146 
    147 void
    148 midi_pcppi_close(ms)
    149 	midisyn *ms;
    150 {
    151 	pcppi_tag_t t = ms->data;
    152 
    153 	/* Make sure we are quiet. */
    154 	pcppi_bell(t, 0, 0, 0);
    155 }
    156