98 lines
3.6 KiB
C
98 lines
3.6 KiB
C
/* $NetBSD: midisynvar.h,v 1.4 2001/10/02 22:41:22 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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* This code is derived from software contributed to The NetBSD Foundation
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* by Lennart Augustsson (augustss@netbsd.org).
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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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#ifndef _SYS_DEV_MIDISYNVAR_H_
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#define _SYS_DEV_MIDISYNVAR_H_
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typedef struct midisyn midisyn;
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struct midisyn_methods {
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int (*open) (midisyn *, int);
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void (*close) (midisyn *);
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int (*ioctl) (midisyn *, u_long, caddr_t, int, struct proc *);
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int (*allocv) (midisyn *, u_int32_t, u_int32_t);
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void (*noteon) (midisyn *, u_int32_t, u_int32_t, u_int32_t);
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void (*noteoff) (midisyn *, u_int32_t, u_int32_t, u_int32_t);
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void (*keypres) (midisyn *, u_int32_t, u_int32_t, u_int32_t);
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void (*ctlchg) (midisyn *, u_int32_t, u_int32_t, u_int32_t);
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void (*pgmchg) (midisyn *, u_int32_t, u_int32_t);
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void (*chnpres) (midisyn *, u_int32_t, u_int32_t);
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void (*pitchb) (midisyn *, u_int32_t, u_int32_t, u_int32_t);
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void (*sysex) (midisyn *, u_int32_t);
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};
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struct voice {
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u_int chan_note; /* channel and note */
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#define MS_CHANNOTE(chan, note) ((chan) * 256 + (note))
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#define MS_GETCHAN(v) ((v)->chan_note >> 8)
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u_int seqno; /* allocation index (increases with time) */
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u_char inuse;
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};
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#define MIDI_MAX_CHANS 16
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struct midisyn {
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/* Filled by synth driver */
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struct midisyn_methods *mets;
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char name[32];
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int nvoice;
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int flags;
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#define MS_DOALLOC 1
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#define MS_FREQXLATE 2
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void *data;
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/* Used by midisyn driver */
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u_int8_t buf[3];
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int pos;
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struct voice *voices;
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u_int seqno;
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u_int16_t pgms[MIDI_MAX_CHANS];
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};
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#define MS_GETPGM(ms, vno) ((ms)->pgms[MS_GETCHAN(&(ms)->voices[vno])])
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struct midi_softc;
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extern struct midi_hw_if midisyn_hw_if;
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void midisyn_attach (struct midi_softc *, midisyn *);
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#define MIDISYN_FREQ_TO_HZ(f) ((f) >> 16)
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#endif /* _SYS_DEV_MIDISYNVAR_H_ */
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