Annotation of sys/dev/isa/midi_pcppi.c, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: midi_pcppi.c,v 1.5 2006/01/02 05:21:40 brad Exp $ */
2: /* $NetBSD: midi_pcppi.c,v 1.4 1998/11/25 22:17:06 augustss Exp $ */
3:
4: /*
5: * Copyright (c) 1998 The NetBSD Foundation, Inc.
6: * All rights reserved.
7: *
8: * This code is derived from software contributed to The NetBSD Foundation
9: * by Lennart Augustsson (augustss@netbsd.org).
10: *
11: * Redistribution and use in source and binary forms, with or without
12: * modification, are permitted provided that the following conditions
13: * are met:
14: * 1. Redistributions of source code must retain the above copyright
15: * notice, this list of conditions and the following disclaimer.
16: * 2. Redistributions in binary form must reproduce the above copyright
17: * notice, this list of conditions and the following disclaimer in the
18: * documentation and/or other materials provided with the distribution.
19: * 3. All advertising materials mentioning features or use of this software
20: * must display the following acknowledgement:
21: * This product includes software developed by the NetBSD
22: * Foundation, Inc. and its contributors.
23: * 4. Neither the name of The NetBSD Foundation nor the names of its
24: * contributors may be used to endorse or promote products derived
25: * from this software without specific prior written permission.
26: *
27: * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
28: * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
29: * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
30: * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
31: * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
32: * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
33: * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
34: * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
35: * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
36: * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
37: * POSSIBILITY OF SUCH DAMAGE.
38: */
39:
40: #include <sys/param.h>
41: #include <sys/systm.h>
42: #include <sys/kernel.h>
43: #include <sys/errno.h>
44: #include <sys/device.h>
45: #include <sys/malloc.h>
46: #include <sys/proc.h>
47: #include <sys/conf.h>
48: #include <sys/selinfo.h>
49: #include <sys/audioio.h>
50: #include <sys/midiio.h>
51:
52: #include <dev/isa/pcppivar.h>
53:
54: #include <dev/audio_if.h>
55: #include <dev/midi_if.h>
56: #include <dev/midivar.h>
57: #include <dev/midisynvar.h>
58:
59: #define MAX_DURATION 30 /* turn off sound automagically after 30 s */
60:
61: struct midi_pcppi_softc {
62: struct midi_softc sc_mididev;
63: midisyn sc_midisyn;
64: };
65:
66: int midi_pcppi_match(struct device *, void *, void *);
67: void midi_pcppi_attach(struct device *, struct device *, void *);
68:
69: void midi_pcppi_on(midisyn *, u_int32_t, u_int32_t, u_int32_t);
70: void midi_pcppi_off(midisyn *, u_int32_t, u_int32_t, u_int32_t);
71: void midi_pcppi_close(midisyn *);
72:
73: struct cfattach midi_pcppi_ca = {
74: sizeof(struct midi_pcppi_softc), midi_pcppi_match, midi_pcppi_attach
75: };
76:
77: struct midisyn_methods midi_pcppi_hw = {
78: 0, /* open */
79: midi_pcppi_close,
80: 0, /* ioctl */
81: 0, /* allocv */
82: midi_pcppi_on,
83: midi_pcppi_off,
84: 0,
85: 0,
86: 0,
87: 0,
88: 0,
89: 0,
90: };
91:
92: int midi_pcppi_attached = 0; /* Not very nice */
93:
94: int
95: midi_pcppi_match(parent, match, aux)
96: struct device *parent;
97: void *match;
98: void *aux;
99: {
100: return (!midi_pcppi_attached);
101: }
102:
103: void
104: midi_pcppi_attach(parent, self, aux)
105: struct device *parent;
106: struct device *self;
107: void *aux;
108: {
109: struct midi_pcppi_softc *sc = (struct midi_pcppi_softc *)self;
110: struct pcppi_attach_args *pa = (struct pcppi_attach_args *)aux;
111: midisyn *ms;
112:
113: ms = &sc->sc_midisyn;
114: ms->mets = &midi_pcppi_hw;
115: strlcpy(ms->name, "PC speaker", sizeof ms->name);
116: ms->nvoice = 1;
117: ms->flags = MS_DOALLOC | MS_FREQXLATE;
118: ms->data = pa->pa_cookie;
119:
120: midi_pcppi_attached++;
121:
122: midisyn_attach(&sc->sc_mididev, ms);
123: midi_attach(&sc->sc_mididev, parent);
124: }
125:
126: void
127: midi_pcppi_on(ms, chan, note, vel)
128: midisyn *ms;
129: u_int32_t chan, note, vel;
130: {
131: pcppi_tag_t t = ms->data;
132:
133: /*printf("ON %p %d\n", t, MIDISYN_FREQ_TO_HZ(note));*/
134: pcppi_bell(t, MIDISYN_FREQ_TO_HZ(note), MAX_DURATION * hz, 0);
135: }
136:
137: void
138: midi_pcppi_off(ms, chan, note, vel)
139: midisyn *ms;
140: u_int32_t chan, note, vel;
141: {
142: pcppi_tag_t t = ms->data;
143:
144: /*printf("OFF %p %d\n", t, note >> 16);*/
145: pcppi_bell(t, 0, 0, 0);
146: }
147:
148: void
149: midi_pcppi_close(ms)
150: midisyn *ms;
151: {
152: pcppi_tag_t t = ms->data;
153:
154: /* Make sure we are quiet. */
155: pcppi_bell(t, 0, 0, 0);
156: }
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