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) 112 113