midi_pcppi.c revision 1.17 
1/*	$NetBSD: midi_pcppi.c,v 1.17 2007/12/16 19:01:36 christos 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@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/cdefs.h>
40__KERNEL_RCSID(0, "$NetBSD: midi_pcppi.c,v 1.17 2007/12/16 19:01:36 christos Exp $");
41
42#include <sys/param.h>
43#include <sys/systm.h>
44#include <sys/kernel.h>
45#include <sys/errno.h>
46#include <sys/device.h>
47#include <sys/malloc.h>
48#include <sys/proc.h>
49#include <sys/conf.h>
50#include <sys/select.h>
51#include <sys/audioio.h>
52#include <sys/midiio.h>
53
54#include <sys/bus.h>
55
56#include <dev/isa/pcppivar.h>
57
58#include <dev/audio_if.h>
59#include <dev/midi_if.h>
60#include <dev/midivar.h>
61#include <dev/midisynvar.h>
62
63#define MAX_DURATION 30		/* turn off sound automagically after 30 s */
64
65struct midi_pcppi_softc {
66	struct midi_softc sc_mididev;
67	midisyn sc_midisyn;
68};
69
70int	midi_pcppi_match(struct device *, struct cfdata *, void *);
71void	midi_pcppi_attach(struct device *, struct device *, void *);
72
73void	midi_pcppi_on   (midisyn *, uint_fast16_t, midipitch_t, int16_t);
74void	midi_pcppi_off  (midisyn *, uint_fast16_t, uint_fast8_t);
75void	midi_pcppi_close(midisyn *);
76static void midi_pcppi_repitchv(midisyn *, uint_fast16_t, midipitch_t);
77
78CFATTACH_DECL(midi_pcppi, sizeof(struct midi_pcppi_softc),
79    midi_pcppi_match, midi_pcppi_attach, NULL, NULL);
80
81struct midisyn_methods midi_pcppi_hw = {
82	.close    = midi_pcppi_close,
83	.attackv  = midi_pcppi_on,
84	.releasev = midi_pcppi_off,
85	.repitchv = midi_pcppi_repitchv,
86};
87
88int midi_pcppi_attached = 0;	/* Not very nice */
89
90int
91midi_pcppi_match(struct device *parent, struct cfdata *match,
92    void *aux)
93{
94	return (!midi_pcppi_attached);
95}
96
97void
98midi_pcppi_attach(parent, self, aux)
99	struct device *parent;
100	struct device *self;
101	void *aux;
102{
103	struct midi_pcppi_softc *sc = (struct midi_pcppi_softc *)self;
104	struct pcppi_attach_args *pa = (struct pcppi_attach_args *)aux;
105	midisyn *ms;
106
107	ms = &sc->sc_midisyn;
108	ms->mets = &midi_pcppi_hw;
109	strcpy(ms->name, "PC speaker");
110	ms->nvoice = 1;
111	ms->data = pa->pa_cookie;
112
113	midi_pcppi_attached++;
114
115	midisyn_attach(&sc->sc_mididev, ms);
116	midi_attach(&sc->sc_mididev, parent);
117        if (!device_pmf_is_registered(self))
118		if (!pmf_device_register(self, NULL, NULL))
119			aprint_error_dev(self,
120			    "couldn't establish power handler\n");
121}
122
123void
124midi_pcppi_on(midisyn *ms,
125    uint_fast16_t voice, midipitch_t mp, int16_t level)
126{
127	pcppi_tag_t t = ms->data;
128
129	pcppi_bell(t,
130	           MIDIHZ18_TO_HZ(MIDIPITCH_TO_HZ18(mp)),
131	           MAX_DURATION * hz, 0);
132}
133
134void
135midi_pcppi_off(midisyn *ms, uint_fast16_t voice, uint_fast8_t vel)
136{
137	pcppi_tag_t t = ms->data;
138
139	/*printf("OFF %p %d\n", t, note >> 16);*/
140	pcppi_bell(t, 0, 0, 0);
141}
142
143void
144midi_pcppi_close(ms)
145	midisyn *ms;
146{
147	pcppi_tag_t t = ms->data;
148
149	/* Make sure we are quiet. */
150	pcppi_bell(t, 0, 0, 0);
151}
152
153static void
154midi_pcppi_repitchv(midisyn *ms, uint_fast16_t voice, midipitch_t newpitch)
155{
156	midi_pcppi_on(ms, voice, newpitch, 64);
157}
158