1 /* $OpenBSD: midisynvar.h,v 1.2 2002/03/14 01:26:52 millert Exp $ */
2 /* $NetBSD: midisynvar.h,v 1.3 1998/11/25 22:17:07 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 #ifndef _SYS_DEV_MIDISYNVAR_H_
41 #define _SYS_DEV_MIDISYNVAR_H_
42
43 typedef struct midisyn midisyn;
44
45 struct midisyn_methods {
46 int (*open)(midisyn *, int);
47 void (*close)(midisyn *);
48 int (*ioctl)(midisyn *, u_long, caddr_t, int, struct proc *);
49 int (*allocv)(midisyn *, u_int32_t, u_int32_t);
50 void (*noteon)(midisyn *, u_int32_t, u_int32_t, u_int32_t);
51 void (*noteoff)(midisyn *, u_int32_t, u_int32_t, u_int32_t);
52 void (*keypres)(midisyn *, u_int32_t, u_int32_t, u_int32_t);
53 void (*ctlchg)(midisyn *, u_int32_t, u_int32_t, u_int32_t);
54 void (*pgmchg)(midisyn *, u_int32_t, u_int32_t);
55 void (*chnpres)(midisyn *, u_int32_t, u_int32_t);
56 void (*pitchb)(midisyn *, u_int32_t, u_int32_t, u_int32_t);
57 void (*sysex)(midisyn *, u_int32_t);
58 };
59
60 struct voice {
61 u_int chan_note; /* channel and note */
62 #define MS_CHANNOTE(chan, note) ((chan) * 256 + (note))
63 #define MS_GETCHAN(v) ((v)->chan_note >> 8)
64 u_int seqno; /* allocation index (increases with time) */
65 u_char inuse;
66 };
67
68 #define MIDI_MAX_CHANS 16
69
70 struct midisyn {
71 /* Filled by synth driver */
72 struct midisyn_methods *mets;
73 char name[32];
74 int nvoice;
75 int flags;
76 #define MS_DOALLOC 1
77 #define MS_FREQXLATE 2
78 void *data;
79
80 /* Used by midisyn driver */
81 u_int8_t buf[3];
82 int pos;
83 struct voice *voices;
84 u_int seqno;
85 u_int16_t pgms[MIDI_MAX_CHANS];
86 };
87
88 #define MS_GETPGM(ms, vno) ((ms)->pgms[MS_GETCHAN(&(ms)->voices[vno])])
89
90 struct midi_softc;
91
92 extern struct midi_hw_if midisyn_hw_if;
93
94 void midisyn_attach(struct midi_softc *, midisyn *);
95
96 #define MIDISYN_FREQ_TO_HZ(f) ((f) >> 16)
97
98 #endif /* _SYS_DEV_MIDISYNVAR_H_ */