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/* $OpenBSD: sysex.h,v 1.5 2022/12/26 19:16:00 jmc Exp $ */
/*
* Copyright (c) 2011 Alexandre Ratchov <alex@caoua.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#ifndef SYSEX_H
#define SYSEX_H
#include <stdint.h>
/*
* start and end markers
*/
#define SYSEX_START 0xf0
#define SYSEX_END 0xf7
/*
* type/vendor namespace IDs we use
*/
#define SYSEX_TYPE_RT 0x7f /* real-time universal */
#define SYSEX_TYPE_EDU 0x7d /* non-comercial */
/*
* realtime messages in the "universal real-time" namespace
*/
#define SYSEX_MTC 0x01 /* mtc messages */
#define SYSEX_MTC_FULL 0x01 /* mtc full frame message */
#define SYSEX_CONTROL 0x04
#define SYSEX_MASTER 0x01
#define SYSEX_MMC 0x06
#define SYSEX_MMC_STOP 0x01
#define SYSEX_MMC_START 0x02
#define SYSEX_MMC_LOC 0x44
#define SYSEX_MMC_LOC_LEN 0x06
#define SYSEX_MMC_LOC_CMD 0x01
/*
* special "any" midi device number
*/
#define SYSEX_DEV_ANY 0x7f
/*
* minimum size of sysex message we accept
*/
#define SYSEX_SIZE(m) (5 + sizeof(struct sysex_ ## m))
/*
* all possible system exclusive messages we support.
*/
struct sysex {
uint8_t start;
uint8_t type; /* type or vendor id */
uint8_t dev; /* device or product id */
uint8_t id0; /* message id */
uint8_t id1; /* sub-id */
union sysex_all {
struct sysex_empty {
uint8_t end;
} empty;
struct sysex_master {
uint8_t fine;
uint8_t coarse;
uint8_t end;
} master;
struct sysex_start {
uint8_t end;
} start;
struct sysex_stop {
uint8_t end;
} stop;
struct sysex_loc {
uint8_t len;
uint8_t cmd;
#define MTC_FPS_24 0
#define MTC_FPS_25 1
#define MTC_FPS_30 3
uint8_t hr; /* MSB contain MTC_FPS */
uint8_t min;
uint8_t sec;
uint8_t fr;
uint8_t cent;
uint8_t end;
} loc;
struct sysex_full {
uint8_t hr;
uint8_t min;
uint8_t sec;
uint8_t fr;
uint8_t end;
} full;
} u;
};
#endif /* !defined(SYSEX_H) */
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