48bae9ee88
the /dev/rmidiN devices, or with a sequencer interface via /dev/music. So far the only supported MIDI device is the MPU401 port on SoundBlaster (and only on SB on isapnp, since we do not have locators with multiple values yet).
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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