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/* $OpenBSD: midivar.h,v 1.2 2000/06/26 22:43:22 art Exp $ */
/* $NetBSD: midivar.h,v 1.6 1998/11/25 22:17:07 augustss Exp $ */
/*
* Copyright (c) 1998 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Lennart Augustsson (augustss@netbsd.org).
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _SYS_DEV_MIDIVAR_H_
#define _SYS_DEV_MIDIVAR_H_
#define MIDI_BUFSIZE 1024
#include "sequencer.h"
#include <sys/timeout.h>
struct midi_buffer {
u_char *inp;
u_char *outp;
u_char *end;
int used;
int usedhigh;
u_char start[MIDI_BUFSIZE];
};
#define MIDI_MAX_WRITE 32 /* max bytes written with busy wait */
#define MIDI_WAIT 10000 /* microseconds to wait after busy wait */
struct midi_softc {
struct device dev;
void *hw_hdl; /* Hardware driver handle */
struct midi_hw_if *hw_if; /* Hardware interface */
struct device *sc_dev; /* Hardware device struct */
int isopen; /* Open indicator */
int flags; /* Open flags */
struct midi_buffer outbuf;
struct midi_buffer inbuf;
int props;
int rchan, wchan;
int pbus;
struct selinfo wsel; /* write selector */
struct selinfo rsel; /* read selector */
struct proc *async; /* process who wants audio SIGIO */
struct timeout timeo; /* timeout handle */
/* MIDI input state machine */
int in_state;
#define MIDI_IN_START 0
#define MIDI_IN_DATA 1
#define MIDI_IN_SYSEX 2
u_char in_msg[3];
u_char in_status;
u_int in_left;
u_int in_pos;
#if NSEQUENCER > 0
/* Synthesizer emulation stuff */
int seqopen;
struct midi_dev *seq_md; /* structure that links us with the seq. */
#endif
};
#define MIDIUNIT(d) ((d) & 0xff)
#endif /* _SYS_DEV_MIDIVAR_H_ */
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