126 lines
3.2 KiB
C
126 lines
3.2 KiB
C
/* $OpenBSD: sysex.h,v 1.3 2022/12/26 19:16:03 jmc Exp $ */
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/*
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* Copyright (c) 2011 Alexandre Ratchov <alex@caoua.org>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#ifndef AUCAT_SYSEX_H
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#define AUCAT_SYSEX_H
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#include <stdint.h>
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/*
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* start and end markers
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*/
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#define SYSEX_START 0xf0
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#define SYSEX_END 0xf7
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/*
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* type/vendor namespace IDs we use
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*/
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#define SYSEX_TYPE_RT 0x7f /* real-time universal */
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#define SYSEX_TYPE_EDU 0x7d /* non-comercial */
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/*
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* realtime messages in the "universal real-time" namespace
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*/
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#define SYSEX_MTC 0x01 /* mtc messages */
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#define SYSEX_MTC_FULL 0x01 /* mtc full frame message */
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#define SYSEX_CONTROL 0x04
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#define SYSEX_MASTER 0x01
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#define SYSEX_MMC 0x06
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#define SYSEX_MMC_STOP 0x01
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#define SYSEX_MMC_START 0x02
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#define SYSEX_MMC_LOC 0x44
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#define SYSEX_MMC_LOC_LEN 0x06
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#define SYSEX_MMC_LOC_CMD 0x01
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/*
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* special "any" midi device number
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*/
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#define SYSEX_DEV_ANY 0x7f
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/*
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* aucat-specific messages, in the "edu" namespace
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*/
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#define SYSEX_AUCAT 0x23 /* aucat-specific */
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#define SYSEX_AUCAT_SLOTDESC 0x01 /* mixer info */
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#define SYSEX_AUCAT_DUMPREQ 0x02 /* dump request */
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#define SYSEX_AUCAT_DUMPEND 0x03 /* end of dump */
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/*
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* minimum size of sysex message we accept
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*/
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#define SYSEX_SIZE(m) (5 + sizeof(struct sysex_ ## m))
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/*
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* all possible system exclusive messages we support. For aucat-specific
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* messages we use the same header as real-time messages to simplify the
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* message parser
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*/
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struct sysex {
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uint8_t start;
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uint8_t type; /* type or vendor id */
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uint8_t dev; /* device or product id */
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uint8_t id0; /* message id */
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uint8_t id1; /* sub-id */
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union sysex_all {
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struct sysex_empty {
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uint8_t end;
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} empty;
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struct sysex_master {
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uint8_t fine;
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uint8_t coarse;
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uint8_t end;
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} master;
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struct sysex_start {
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uint8_t end;
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} start;
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struct sysex_stop {
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uint8_t end;
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} stop;
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struct sysex_loc {
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uint8_t len;
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uint8_t cmd;
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uint8_t hr;
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uint8_t min;
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uint8_t sec;
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uint8_t fr;
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uint8_t cent;
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uint8_t end;
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} loc;
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struct sysex_full {
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uint8_t hr;
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uint8_t min;
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uint8_t sec;
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uint8_t fr;
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uint8_t end;
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} full;
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struct sysex_slotdesc {
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uint8_t chan; /* channel */
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uint8_t vol; /* current volume */
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#define SYSEX_NAMELEN 10 /* \0 included */
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uint8_t name[SYSEX_NAMELEN]; /* stream name */
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uint8_t end;
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} slotdesc;
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struct sysex_dumpreq {
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uint8_t end;
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} dumpreq;
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struct sysex_dumpend {
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uint8_t end;
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} dumpend;
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} u;
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};
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#endif /* !defined(AUCAT_SYSEX_H) */
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