1 /* $OpenBSD: midivar.h,v 1.2 2000/06/26 22:43:22 art Exp $ */ 2 /* $NetBSD: midivar.h,v 1.6 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_MIDIVAR_H_ 41 #define _SYS_DEV_MIDIVAR_H_ 42 43 #define MIDI_BUFSIZE 1024 44 45 #include "sequencer.h" 46 #include <sys/timeout.h> 47 48 struct midi_buffer { 49 u_char *inp; 50 u_char *outp; 51 u_char *end; 52 int used; 53 int usedhigh; 54 u_char start[MIDI_BUFSIZE]; 55 }; 56 57 #define MIDI_MAX_WRITE 32 /* max bytes written with busy wait */ 58 #define MIDI_WAIT 10000 /* microseconds to wait after busy wait */ 59 60 struct midi_softc { 61 struct device dev; 62 void *hw_hdl; /* Hardware driver handle */ 63 struct midi_hw_if *hw_if; /* Hardware interface */ 64 struct device *sc_dev; /* Hardware device struct */ 65 int isopen; /* Open indicator */ 66 int flags; /* Open flags */ 67 struct midi_buffer outbuf; 68 struct midi_buffer inbuf; 69 int props; 70 int rchan, wchan; 71 int pbus; 72 struct selinfo wsel; /* write selector */ 73 struct selinfo rsel; /* read selector */ 74 struct proc *async; /* process who wants audio SIGIO */ 75 struct timeout timeo; /* timeout handle */ 76 77 /* MIDI input state machine */ 78 int in_state; 79 #define MIDI_IN_START 0 80 #define MIDI_IN_DATA 1 81 #define MIDI_IN_SYSEX 2 82 u_char in_msg[3]; 83 u_char in_status; 84 u_int in_left; 85 u_int in_pos; 86 87 #if NSEQUENCER > 0 88 /* Synthesizer emulation stuff */ 89 int seqopen; 90 struct midi_dev *seq_md; /* structure that links us with the seq. */ 91 #endif 92 }; 93 94 #define MIDIUNIT(d) ((d) & 0xff) 95 96 #endif /* _SYS_DEV_MIDIVAR_H_ */ 97