From 16eef665101a8c1334032296ea7d1584ff9c7e57 Mon Sep 17 00:00:00 2001 From: Niklas Hallqvist Date: Sat, 2 Jan 1999 00:02:57 +0000 Subject: Midi & sequencer support from NetBSD, mostly by Lennart Augustsson --- sys/dev/midivar.h | 94 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 94 insertions(+) create mode 100644 sys/dev/midivar.h (limited to 'sys/dev/midivar.h') diff --git a/sys/dev/midivar.h b/sys/dev/midivar.h new file mode 100644 index 00000000000..da3e1518d0f --- /dev/null +++ b/sys/dev/midivar.h @@ -0,0 +1,94 @@ +/* $OpenBSD: midivar.h,v 1.1 1999/01/02 00:02:38 niklas 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" + +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 */ + + /* 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_ */ -- cgit v1.2.3