1 /* $NetBSD: sequencervar.h,v 1.7 2003/12/04 13:57:30 keihan 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/callout.h>
40
41 struct midi_softc;
42
43 struct syn_timer {
44 struct timeval start, stop;
45 int tempo, timebase;
46 u_long last;
47 u_long tick;
48 int running;
49 };
50
51 #define SEQ_MAXQ 256
52 struct sequencer_queue {
53 seq_event_rec buf[SEQ_MAXQ];
54 u_int in; /* input index in buf */
55 u_int out; /* output index in buf */
56 u_int count; /* filled slots in buf */
57 };
58 #define SEQ_QINIT(q) ((q)->in = (q)->out = (q)->count = 0)
59 #define SEQ_QEMPTY(q) ((q)->count == 0)
60 #define SEQ_QFULL(q) ((q)->count >= SEQ_MAXQ)
61 #define SEQ_QPUT(q, e) ((q)->buf[(q)->in++] = (e), (q)->in %= SEQ_MAXQ, (q)->count++)
62 #define SEQ_QGET(q, e) ((e) = (q)->buf[(q)->out++], (q)->out %= SEQ_MAXQ, (q)->count--)
63 #define SEQ_QLEN(q) ((q)->count)
64
65 struct sequencer_softc;
66
67 #define MAXCHAN 16
68 struct midi_dev {
69 char *name;
70 int subtype;
71 int capabilities;
72 int nr_voices;
73 int instr_bank_size;
74 int unit;
75 u_char last_cmd;
76 struct sequencer_softc *seq;
77 struct midi_softc *msc;
78 };
79
80 struct sequencer_softc {
81 struct device dev;
82 struct device *sc_dev; /* Hardware device struct */
83 struct callout sc_callout;
84 int isopen; /* Open indicator */
85 int flags; /* Open flags */
86 int mode;
87 #define SEQ_OLD 0
88 #define SEQ_NEW 1
89 int rchan, wchan;
90 int pbus;
91 struct selinfo wsel; /* write selector */
92 struct selinfo rsel; /* read selector */
93 struct proc *async; /* process who wants audio SIGIO */
94
95 char doingsysex; /* doing a SEQ_SYSEX */
96
97 int nmidi; /* number of MIDI devices */
98 struct midi_dev **devs;
99 struct syn_timer timer;
100
101 struct sequencer_queue outq; /* output event queue */
102 u_int lowat; /* output queue low water mark */
103 char timeout; /* timeout has been set */
104
105 struct sequencer_queue inq; /* input event queue */
106 u_long input_stamp;
107 };
108
109 void seq_event_intr __P((void *, seq_event_rec *));
110
111 #define SEQUENCERUNIT(d) ((d) & 0x7f)
112 #define SEQ_IS_OLD(d) ((d) & 0x80)
113
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