Annotation of sys/dev/sequencervar.h, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: sequencervar.h,v 1.3 2002/03/14 01:26:52 millert Exp $ */
2: /* $NetBSD: sequencervar.h,v 1.5 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: struct midi_softc;
41:
42: struct syn_timer {
43: struct timeval start, stop;
44: int tempo, timebase;
45: u_long last;
46: u_long tick;
47: int running;
48: };
49:
50: #define SEQ_MAXQ 256
51: struct sequencer_queue {
52: seq_event_rec buf[SEQ_MAXQ];
53: u_int in; /* input index in buf */
54: u_int out; /* output index in buf */
55: u_int count; /* filled slots in buf */
56: };
57: #define SEQ_QINIT(q) ((q)->in = (q)->out = (q)->count = 0)
58: #define SEQ_QEMPTY(q) ((q)->count == 0)
59: #define SEQ_QFULL(q) ((q)->count >= SEQ_MAXQ)
60: #define SEQ_QPUT(q, e) ((q)->buf[(q)->in++] = (e), (q)->in %= SEQ_MAXQ, (q)->count++)
61: #define SEQ_QGET(q, e) ((e) = (q)->buf[(q)->out++], (q)->out %= SEQ_MAXQ, (q)->count--)
62: #define SEQ_QLEN(q) ((q)->count)
63:
64: struct sequencer_softc;
65:
66: #define MAXCHAN 16
67: struct midi_dev {
68: char *name;
69: int subtype;
70: int capabilities;
71: int nr_voices;
72: int instr_bank_size;
73: int unit;
74: u_char last_cmd;
75: struct sequencer_softc *seq;
76: struct midi_softc *msc;
77: };
78:
79: struct sequencer_softc {
80: struct device dev;
81: struct device *sc_dev; /* Hardware device struct */
82: int isopen; /* Open indicator */
83: int flags; /* Open flags */
84: int mode;
85: #define SEQ_OLD 0
86: #define SEQ_NEW 1
87: int rchan, wchan;
88: int pbus;
89: struct selinfo wsel; /* write selector */
90: struct selinfo rsel; /* read selector */
91: struct proc *async; /* process who wants audio SIGIO */
92: struct timeout timo; /* timeout handle */
93:
94: char doingsysex; /* doing a SEQ_SYSEX */
95:
96: int nmidi; /* number of MIDI devices */
97: struct midi_dev **devs;
98: struct syn_timer timer;
99:
100: struct sequencer_queue outq; /* output event queue */
101: u_int lowat; /* output queue low water mark */
102: char timeout; /* timeout has been set */
103:
104: struct sequencer_queue inq; /* input event queue */
105: u_long input_stamp;
106: };
107:
108: void seq_event_intr(void *, seq_event_rec *);
109:
110: #define SEQUENCERUNIT(d) ((d) & 0x7f)
111: #define SEQ_IS_OLD(d) ((d) & 0x80)
112:
CVSweb