xref: /netbsd-src/sys/dev/isa/midi_pcppi.c (revision e622eac459adf11c2e710d7a4de0f05510bbbe61)
1 /*	$NetBSD: midi_pcppi.c,v 1.27 2019/05/08 13:40:18 isaki Exp $	*/
2 
3 /*
4  * Copyright (c) 1998, 2008 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), and by Andrew Doran.
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  *
19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29  * POSSIBILITY OF SUCH DAMAGE.
30  */
31 
32 #include <sys/cdefs.h>
33 __KERNEL_RCSID(0, "$NetBSD: midi_pcppi.c,v 1.27 2019/05/08 13:40:18 isaki Exp $");
34 
35 #include <sys/param.h>
36 #include <sys/systm.h>
37 #include <sys/kernel.h>
38 #include <sys/errno.h>
39 #include <sys/device.h>
40 #include <sys/proc.h>
41 #include <sys/conf.h>
42 #include <sys/select.h>
43 #include <sys/audioio.h>
44 #include <sys/midiio.h>
45 #include <sys/tty.h>
46 #include <sys/bus.h>
47 
48 #include <dev/isa/pcppivar.h>
49 
50 #include <dev/audio/audio_if.h>
51 #include <dev/midi_if.h>
52 #include <dev/midivar.h>
53 #include <dev/midisynvar.h>
54 
55 #define MAX_DURATION 30		/* turn off sound automagically after 30 s */
56 
57 struct midi_pcppi_softc {
58 	struct midi_softc sc_mididev;
59 	midisyn sc_midisyn;
60 };
61 
62 static int	midi_pcppi_match(device_t, cfdata_t , void *);
63 static void	midi_pcppi_attach(device_t, device_t, void *);
64 static int	midi_pcppi_detach(device_t, int);
65 
66 static void	midi_pcppi_on   (midisyn *, uint_fast16_t, midipitch_t, int16_t);
67 static void	midi_pcppi_off  (midisyn *, uint_fast16_t, uint_fast8_t);
68 static void	midi_pcppi_close(midisyn *);
69 static void	midi_pcppi_repitchv(midisyn *, uint_fast16_t, midipitch_t);
70 
71 CFATTACH_DECL3_NEW(midi_pcppi, sizeof(struct midi_pcppi_softc),
72     midi_pcppi_match, midi_pcppi_attach, midi_pcppi_detach, NULL, NULL, NULL,
73     DVF_DETACH_SHUTDOWN);
74 
75 static struct midisyn_methods midi_pcppi_hw = {
76 	.close    = midi_pcppi_close,
77 	.attackv  = midi_pcppi_on,
78 	.releasev = midi_pcppi_off,
79 	.repitchv = midi_pcppi_repitchv,
80 };
81 
82 int midi_pcppi_attached = 0;	/* Not very nice */
83 
84 static int
midi_pcppi_match(device_t parent,cfdata_t match,void * aux)85 midi_pcppi_match(device_t parent, cfdata_t match, void *aux)
86 {
87 	return (!midi_pcppi_attached);
88 }
89 
90 static void
midi_pcppi_attach(device_t parent,device_t self,void * aux)91 midi_pcppi_attach(device_t parent, device_t self, void *aux)
92 {
93 	struct midi_pcppi_softc *sc = device_private(self);
94 	struct pcppi_attach_args *pa = (struct pcppi_attach_args *)aux;
95 	midisyn *ms;
96 
97 	midi_pcppi_attached++;
98 
99 	ms = &sc->sc_midisyn;
100 	ms->mets = &midi_pcppi_hw;
101 	strcpy(ms->name, "PC speaker");
102 	ms->nvoice = 1;
103 	ms->data = pa->pa_cookie;
104 	ms->lock = &tty_lock;
105 	midisyn_init(ms);
106 
107 	sc->sc_mididev.dev = self;
108 	sc->sc_mididev.hw_if = &midisyn_hw_if;
109 	sc->sc_mididev.hw_hdl = ms;
110 	midi_attach(&sc->sc_mididev);
111 }
112 
113 static int
midi_pcppi_detach(device_t self,int flags)114 midi_pcppi_detach(device_t self, int flags)
115 {
116 	KASSERT(midi_pcppi_attached > 0);
117 
118 	midi_pcppi_attached--;
119 	return mididetach(self, flags);
120 }
121 
122 static void
midi_pcppi_on(midisyn * ms,uint_fast16_t voice,midipitch_t mp,int16_t level)123 midi_pcppi_on(midisyn *ms,
124     uint_fast16_t voice, midipitch_t mp, int16_t level)
125 {
126 	pcppi_tag_t t = ms->data;
127 
128 	KASSERT(mutex_owned(&tty_lock));
129 
130 	pcppi_bell_locked(t, MIDIHZ18_TO_HZ(MIDIPITCH_TO_HZ18(mp)),
131 	    MAX_DURATION * hz, 0);
132 }
133 
134 static void
midi_pcppi_off(midisyn * ms,uint_fast16_t voice,uint_fast8_t vel)135 midi_pcppi_off(midisyn *ms, uint_fast16_t voice, uint_fast8_t vel)
136 {
137 	pcppi_tag_t t = ms->data;
138 
139 	KASSERT(mutex_owned(&tty_lock));
140 
141 	/*printf("OFF %p %d\n", t, note >> 16);*/
142 	pcppi_bell_locked(t, 0, 0, 0);
143 }
144 
145 static void
midi_pcppi_close(midisyn * ms)146 midi_pcppi_close(midisyn *ms)
147 {
148 	pcppi_tag_t t = ms->data;
149 
150 	KASSERT(mutex_owned(&tty_lock));
151 
152 	/* Make sure we are quiet. */
153 	pcppi_bell_locked(t, 0, 0, 0);
154 }
155 
156 static void
midi_pcppi_repitchv(midisyn * ms,uint_fast16_t voice,midipitch_t newpitch)157 midi_pcppi_repitchv(midisyn *ms, uint_fast16_t voice, midipitch_t newpitch)
158 {
159 	KASSERT(mutex_owned(&tty_lock));
160 
161 	midi_pcppi_on(ms, voice, newpitch, 64);
162 }
163