1 | /* $NetBSD: midi_pcppi.c,v 1.26 2012/04/09 10:18:17 plunky 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 1.26 2012/04/09 10:18:17 plunky 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_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 |
85 | midi_pcppi_match(device_t parent, cfdata_t match, void *aux) |
86 | { |
87 | return (!midi_pcppi_attached); |
88 | } |
89 | |
90 | static void |
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 |
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 |
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 |
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 |
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 |
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 | |