1 /* $NetBSD: midisynvar.h,v 1.4 2001/10/02 22:41:22 augustss Exp $ */ 2 3 /* 4 * Copyright (c) 1998 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Lennart Augustsson (augustss@netbsd.org). 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 #ifndef _SYS_DEV_MIDISYNVAR_H_ 40 #define _SYS_DEV_MIDISYNVAR_H_ 41 42 typedef struct midisyn midisyn; 43 44 struct midisyn_methods { 45 int (*open) (midisyn *, int); 46 void (*close) (midisyn *); 47 int (*ioctl) (midisyn *, u_long, caddr_t, int, struct proc *); 48 int (*allocv) (midisyn *, u_int32_t, u_int32_t); 49 void (*noteon) (midisyn *, u_int32_t, u_int32_t, u_int32_t); 50 void (*noteoff) (midisyn *, u_int32_t, u_int32_t, u_int32_t); 51 void (*keypres) (midisyn *, u_int32_t, u_int32_t, u_int32_t); 52 void (*ctlchg) (midisyn *, u_int32_t, u_int32_t, u_int32_t); 53 void (*pgmchg) (midisyn *, u_int32_t, u_int32_t); 54 void (*chnpres) (midisyn *, u_int32_t, u_int32_t); 55 void (*pitchb) (midisyn *, u_int32_t, u_int32_t, u_int32_t); 56 void (*sysex) (midisyn *, u_int32_t); 57 }; 58 59 struct voice { 60 u_int chan_note; /* channel and note */ 61 #define MS_CHANNOTE(chan, note) ((chan) * 256 + (note)) 62 #define MS_GETCHAN(v) ((v)->chan_note >> 8) 63 u_int seqno; /* allocation index (increases with time) */ 64 u_char inuse; 65 }; 66 67 #define MIDI_MAX_CHANS 16 68 69 struct midisyn { 70 /* Filled by synth driver */ 71 struct midisyn_methods *mets; 72 char name[32]; 73 int nvoice; 74 int flags; 75 #define MS_DOALLOC 1 76 #define MS_FREQXLATE 2 77 void *data; 78 79 /* Used by midisyn driver */ 80 u_int8_t buf[3]; 81 int pos; 82 struct voice *voices; 83 u_int seqno; 84 u_int16_t pgms[MIDI_MAX_CHANS]; 85 }; 86 87 #define MS_GETPGM(ms, vno) ((ms)->pgms[MS_GETCHAN(&(ms)->voices[vno])]) 88 89 struct midi_softc; 90 91 extern struct midi_hw_if midisyn_hw_if; 92 93 void midisyn_attach (struct midi_softc *, midisyn *); 94 95 #define MIDISYN_FREQ_TO_HZ(f) ((f) >> 16) 96 97 #endif /* _SYS_DEV_MIDISYNVAR_H_ */ 98