uapi/sound/asequencer.h

1 /* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
4  *  Copyright (c) 1998-1999 by Frank van de Pol <fvdpol@coil.demon.nl>
5  *            (c) 1998-1999 by Jaroslav Kysela <perex@perex.cz>
39 #define SNDRV_SEQ_EVENT_PITCHBEND	13	/**< from -8192 to 8191 */
59 #define	SNDRV_SEQ_EVENT_SETPOS_TICK	33	/* set tick queue position */
60 #define SNDRV_SEQ_EVENT_SETPOS_TIME	34	/* set realtime queue position */
70 #define SNDRV_SEQ_EVENT_RESET		41	/* reset to power-on state */
85 #define SNDRV_SEQ_EVENT_PORT_START	63	/* new port was created */
86 #define SNDRV_SEQ_EVENT_PORT_EXIT	64	/* port was deleted from system */
87 #define SNDRV_SEQ_EVENT_PORT_CHANGE	65	/* port status/info has changed */
89 /** port connection changes
95 /* 70-89:  synthesizer events - obsoleted */
97 /** user-defined events with fixed length
111 /* 100-118: instrument layer - obsoleted */
112 /* 119-129: reserved */
114 /* 130-139: variable length events
116  * (SNDRV_SEQ_EVENT_LENGTH_VARIABLE must be set)
120 /* 132-134: reserved */
127 /* 150-151: kernel events with quote - DO NOT use in user clients */
131 /* 152-191: reserved */
133 /* 192-254: hardware specific events */
144 	unsigned char port;	/**< Port within client:    0..255, 255 = broadcast to all ports */  member
147 /** port connection */
159 	/* event mode flag - NOTE: only 8 bits available! */
170 #define SNDRV_SEQ_EVENT_LENGTH_VARUSR	(2<<2)	/* variable event size - user memory space */
196 	/* generic set of bytes (12x8 bit) */
201 	/* generic set of integers (3x32 bit) */
209 	void *ptr;		/* pointer to data (note: maybe 64-bit) */
249 	/* quoted event - inside the kernel only */
285 	/* (compatible) event for UMP-capable clients */
302  * bounce event - stored as variable size data
315 	int ports;			/* maximum ports per client */
316 	int channels;			/* maximum channels per port */
326 	unsigned char big_endian;	/* 1 = big-endian */
367 					 *  bit 1-16 = messages for groups 1-16)
393 #define SNDRV_SEQ_REMOVE_DEST		(1<<2)	/* Restrict by destination q:client:port */
419 	/* known port numbers */
423 	/* port capabilities (32 bits) */
424 #define SNDRV_SEQ_PORT_CAP_READ		(1<<0)	/* readable from this port */
425 #define SNDRV_SEQ_PORT_CAP_WRITE	(1<<1)	/* writable to this port */
435 #define SNDRV_SEQ_PORT_CAP_INACTIVE	(1<<8)	/* inactive port */
436 #define SNDRV_SEQ_PORT_CAP_UMP_ENDPOINT	(1<<9)	/* MIDI 2.0 UMP Endpoint port */
438 	/* port type */
444 #define SNDRV_SEQ_PORT_TYPE_MIDI_MT32	(1<<5)	/* MT-32 compatible device */
449 #define SNDRV_SEQ_PORT_TYPE_SYNTH	(1<<10)	/* Synth device (no MIDI compatible - direct wavetable) */
466 /* port direction */
473 	struct snd_seq_addr addr;	/* client/port numbers */
474 	char name[64];			/* port name */
476 	unsigned int capability;	/* port capability bits */
477 	unsigned int type;		/* port type bits */
478 	int midi_channels;		/* channels per MIDI port */
479 	int midi_voices;		/* voices per MIDI port */
480 	int synth_voices;		/* voices per SYNTH port */
482 	int read_use;			/* R/O: subscribers for output (from this port) */
483 	int write_use;			/* R/O: subscribers for input (to this port) */
488 	unsigned char direction;	/* port usage direction (r/w/bidir) */
489 	unsigned char ump_group;	/* 0 = UMP EP (no conversion), 1-16 = UMP group number */
516 	int events;			/* read-only - queue size */
528 	unsigned int tempo;		/* current tempo, us/tick (or different time-base below) */
560 				   (must be set for accepting events) */
561 	/* per client watermarks */
575 	unsigned char queue;		/* input time-stamp queue (optional) */
585 	struct snd_seq_addr root;	/* client/port id to be searched */
587 	int index;		/* 0..N-1 */
588 	int num_subs;		/* R/O: number of subscriptions on this port */
596  * UMP-specific information
603 	int client;			/* client number to inquire/set */
604 	int type;			/* type to inquire/set */