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midisynvar.h revision 1.2
      1  1.2  augustss /*	$NetBSD: midisynvar.h,v 1.2 1998/08/17 21:16:12 augustss Exp $	*/
      2  1.1  augustss 
      3  1.1  augustss /*
      4  1.1  augustss  * Copyright (c) 1998 The NetBSD Foundation, Inc.
      5  1.1  augustss  * All rights reserved.
      6  1.1  augustss  *
      7  1.1  augustss  * Author: Lennart Augustsson
      8  1.1  augustss  *
      9  1.1  augustss  * Redistribution and use in source and binary forms, with or without
     10  1.1  augustss  * modification, are permitted provided that the following conditions
     11  1.1  augustss  * are met:
     12  1.1  augustss  * 1. Redistributions of source code must retain the above copyright
     13  1.1  augustss  *    notice, this list of conditions and the following disclaimer.
     14  1.1  augustss  * 2. Redistributions in binary form must reproduce the above copyright
     15  1.1  augustss  *    notice, this list of conditions and the following disclaimer in the
     16  1.1  augustss  *    documentation and/or other materials provided with the distribution.
     17  1.1  augustss  * 3. All advertising materials mentioning features or use of this software
     18  1.1  augustss  *    must display the following acknowledgement:
     19  1.1  augustss  *        This product includes software developed by the NetBSD
     20  1.1  augustss  *        Foundation, Inc. and its contributors.
     21  1.1  augustss  * 4. Neither the name of The NetBSD Foundation nor the names of its
     22  1.1  augustss  *    contributors may be used to endorse or promote products derived
     23  1.1  augustss  *    from this software without specific prior written permission.
     24  1.1  augustss  *
     25  1.1  augustss  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     26  1.1  augustss  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     27  1.1  augustss  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     28  1.1  augustss  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     29  1.1  augustss  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     30  1.1  augustss  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     31  1.1  augustss  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     32  1.1  augustss  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     33  1.1  augustss  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     34  1.1  augustss  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     35  1.1  augustss  * POSSIBILITY OF SUCH DAMAGE.
     36  1.1  augustss  */
     37  1.1  augustss 
     38  1.2  augustss #ifndef _SYS_DEV_MIDISYNVAR_H_
     39  1.2  augustss #define _SYS_DEV_MIDISYNVAR_H_
     40  1.2  augustss 
     41  1.1  augustss typedef struct midisyn midisyn;
     42  1.1  augustss 
     43  1.1  augustss struct midisyn_methods {
     44  1.1  augustss 	int  (*open)	__P((midisyn *, int));
     45  1.1  augustss 	void (*close)   __P((midisyn *));
     46  1.1  augustss 	int  (*ioctl)   __P((midisyn *, u_long, caddr_t, int, struct proc *));
     47  1.1  augustss 	int  (*allocv)  __P((midisyn *, u_int32_t, u_int32_t));
     48  1.1  augustss 	void (*noteon)  __P((midisyn *, u_int32_t, u_int32_t, u_int32_t));
     49  1.1  augustss 	void (*noteoff) __P((midisyn *, u_int32_t, u_int32_t, u_int32_t));
     50  1.1  augustss 	void (*keypres) __P((midisyn *, u_int32_t, u_int32_t, u_int32_t));
     51  1.1  augustss 	void (*ctlchg)  __P((midisyn *, u_int32_t, u_int32_t, u_int32_t));
     52  1.1  augustss 	void (*pgmchg)  __P((midisyn *, u_int32_t, u_int32_t));
     53  1.1  augustss 	void (*chnpres) __P((midisyn *, u_int32_t, u_int32_t));
     54  1.1  augustss 	void (*pitchb)  __P((midisyn *, u_int32_t, u_int32_t, u_int32_t));
     55  1.1  augustss 	void (*sysex)   __P((midisyn *, u_int32_t));
     56  1.1  augustss };
     57  1.1  augustss 
     58  1.1  augustss struct voice {
     59  1.1  augustss 	u_int chan_note;	/* channel and note */
     60  1.2  augustss #define MS_CHANNOTE(chan, note) ((chan) * 256 + (note))
     61  1.2  augustss #define MS_GETCHAN(v) ((v)->chan_note >> 8)
     62  1.1  augustss 	u_int seqno;		/* allocation index (increases with time) */
     63  1.2  augustss 	u_char inuse;
     64  1.1  augustss };
     65  1.1  augustss 
     66  1.2  augustss #define MIDI_MAX_CHANS 16
     67  1.2  augustss 
     68  1.1  augustss struct midisyn {
     69  1.1  augustss 	/* Filled by synth driver */
     70  1.1  augustss 	struct midisyn_methods *mets;
     71  1.1  augustss 	char name[32];
     72  1.1  augustss 	int nvoice;
     73  1.1  augustss 	int flags;
     74  1.1  augustss #define MS_DOALLOC	1
     75  1.1  augustss #define MS_FREQXLATE	2
     76  1.1  augustss 	void *data;
     77  1.1  augustss 
     78  1.1  augustss 	/* Used by midisyn driver */
     79  1.1  augustss 	u_int8_t buf[3];
     80  1.1  augustss 	int pos;
     81  1.1  augustss 	struct voice *voices;
     82  1.1  augustss 	u_int seqno;
     83  1.2  augustss 	u_int16_t pgms[MIDI_MAX_CHANS];
     84  1.1  augustss };
     85  1.1  augustss 
     86  1.2  augustss #define MS_GETPGM(ms, vno) ((ms)->pgms[MS_GETCHAN(&(ms)->voices[vno])])
     87  1.2  augustss 
     88  1.2  augustss struct midi_softc;
     89  1.2  augustss 
     90  1.2  augustss extern struct midi_hw_if midisyn_hw_if;
     91  1.2  augustss 
     92  1.2  augustss void	midisyn_attach __P((struct midi_softc *, midisyn *));
     93  1.1  augustss 
     94  1.1  augustss #define MIDISYN_FREQ_TO_HZ(f) ((f) >> 16)
     95  1.2  augustss 
     96  1.2  augustss #endif /* _SYS_DEV_MIDISYNVAR_H_ */
     97