88 lines
3.0 KiB
C
88 lines
3.0 KiB
C
/* $NetBSD: midivar.h,v 1.1 1998/08/07 00:00:58 augustss Exp $ */
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/*
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* Copyright (c) 1998 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* Author: Lennart Augustsson
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#define MIDI_BUFSIZE 4096
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struct midi_buffer {
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u_char *inp;
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u_char *outp;
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u_char *end;
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int used;
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int usedhigh;
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u_char start[MIDI_BUFSIZE];
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};
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#define MIDI_MAX_WRITE 32 /* max bytes written with busy wait */
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#define MIDI_WAIT 10000 /* microseconds to wait after busy wait */
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struct midi_softc {
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struct device dev;
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void *hw_hdl; /* Hardware driver handle */
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struct midi_hw_if *hw_if; /* Hardware interface */
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struct device *sc_dev; /* Hardware device struct */
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int isopen; /* Open indicator */
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int flags; /* Open flags */
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struct midi_buffer outbuf;
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struct midi_buffer inbuf;
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int props;
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int rchan, wchan;
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int pbus;
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struct selinfo wsel; /* write selector */
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struct selinfo rsel; /* read selector */
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struct proc *async; /* process who wants audio SIGIO */
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/* MIDI input state machine */
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int in_state;
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#define MIDI_IN_START 0
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#define MIDI_IN_DATA 1
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#define MIDI_IN_SYSEX 2
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u_char in_msg[3];
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u_char in_status;
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u_int in_left;
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u_int in_pos;
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#if NSEQUENCER > 0
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/* Synthesizer emulation stuff */
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int seqopen;
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#endif
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};
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#define MIDIUNIT(d) ((d) & 0xff)
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int midi_unit_count __P((void));
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void midi_getinfo __P((dev_t, struct midi_info *));
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