/*
* Main header file for the ALSA sequencer
* Copyright (c) 1998-1999 by Frank van de Pol <fvdpol@coil.demon.nl>
* (c) 1998-1999 by Jaroslav Kysela <perex@perex.cz>
*
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#ifndef _UAPI__SOUND_ASEQUENCER_H
#define _UAPI__SOUND_ASEQUENCER_H
#include <sound/asound.h>
/** version of the sequencer */
#define SNDRV_SEQ_VERSION SNDRV_PROTOCOL_VERSION (1, 0, 1)
/**
* definition of sequencer event types
*/
/** system messages
* event data type = #snd_seq_result
*/
#define SNDRV_SEQ_EVENT_SYSTEM 0
#define SNDRV_SEQ_EVENT_RESULT 1
/** note messages (channel specific)
* event data type = #snd_seq_ev_note
*/
#define SNDRV_SEQ_EVENT_NOTE 5
#define SNDRV_SEQ_EVENT_NOTEON 6
#define SNDRV_SEQ_EVENT_NOTEOFF 7
#define SNDRV_SEQ_EVENT_KEYPRESS 8
/** control messages (channel specific)
* event data type = #snd_seq_ev_ctrl
*/
#define SNDRV_SEQ_EVENT_CONTROLLER 10
#define SNDRV_SEQ_EVENT_PGMCHANGE 11
#define SNDRV_SEQ_EVENT_CHANPRESS 12
#define SNDRV_SEQ_EVENT_PITCHBEND 13 /**< from -8192 to 8191 */
#define SNDRV_SEQ_EVENT_CONTROL14 14 /**< 14 bit controller value */
#define SNDRV_SEQ_EVENT_NONREGPARAM 15 /**< 14 bit NRPN address + 14 bit unsigned value */
#define SNDRV_SEQ_EVENT_REGPARAM 16 /**< 14 bit RPN address + 14 bit unsigned value */
/** synchronisation messages
* event data type = #snd_seq_ev_ctrl
*/
#define SNDRV_SEQ_EVENT_SONGPOS 20 /* Song Position Pointer with LSB and MSB values */
#define SNDRV_SEQ_EVENT_SONGSEL 21 /* Song Select with song ID number */
#define SNDRV_SEQ_EVENT_QFRAME 22 /* midi time code quarter frame */
#define SNDRV_SEQ_EVENT_TIMESIGN 23 /* SMF Time Signature event */
#define SNDRV_SEQ_EVENT_KEYSIGN 24 /* SMF Key Signature event */
/** timer messages
* event data type = snd_seq_ev_queue_control
*/
#define SNDRV_SEQ_EVENT_START 30 /* midi Real Time Start message */
#define SNDRV_SEQ_EVENT_CONTINUE 31 /* midi Real Time Continue message */
#define SNDRV_SEQ_EVENT_STOP 32 /* midi Real Time Stop message */
#define SNDRV_SEQ_EVENT_SETPOS_TICK 33 /* set tick queue position */
#define SNDRV_SEQ_EVENT_SETPOS_TIME 34 /* set realtime queue position */
#define SNDRV_SEQ_EVENT_TEMPO 35 /* (SMF) Tempo event */
#define SNDRV_SEQ_EVENT_CLOCK 36 /* midi Real Time Clock message */
#define SNDRV_SEQ_EVENT_TICK 37 /* midi Real Time Tick message */
#define SNDRV_SEQ_EVENT_QUEUE_SKEW 38 /* skew queue tempo */
/** others
* event data type = none
*/
#define SNDRV_SEQ_EVENT_TUNE_REQUEST 40 /* tune request */
#define SNDRV_SEQ_EVENT_RESET 41 /* reset to power-on state */
#define SNDRV_SEQ_EVENT_SENSING 42 /* "active sensing" event */
/** echo back, kernel private messages
* event data type = any type
*/
#define SNDRV_SEQ_EVENT_ECHO 50 /* echo event */
#define SNDRV_SEQ_EVENT_OSS 51 /* OSS raw event */
/** system status messages (broadcast for subscribers)
* event data type = snd_seq_addr
*/
#define SNDRV_SEQ_EVENT_CLIENT_START 60 /* new client has connected */
#define SNDRV_SEQ_EVENT_CLIENT_EXIT 61 /* client has left the system */
#define SNDRV_SEQ_EVENT_CLIENT_CHANGE 62 /* client status/info has changed */
#define SNDRV_SEQ_EVENT_PORT_START 63 /* new port was created */
#define SNDRV_SEQ_EVENT_PORT_EXIT 64 /* port was deleted from system */
#define SNDRV_SEQ_EVENT_PORT_CHANGE 65 /* port status/info has changed */
/** port connection changes
* event data type = snd_seq_connect
*/
#define SNDRV_SEQ_EVENT_PORT_SUBSCRIBED 66 /* ports connected */
#define SNDRV_SEQ_EVENT_PORT_UNSUBSCRIBED 67 /* ports disconnected */
/* 70-89: synthesizer events - obsoleted */
/** user-defined events with fixed length
* event data type = any
*/
#define SNDRV_SEQ_EVENT_USR0 90
#define SNDRV_SEQ_EVENT_USR1 91
#define SNDRV_SEQ_EVENT_USR2 92
#define SNDRV_SEQ_EVENT_USR3 93
#define SNDRV_SEQ_EVENT_USR4 94
#define SNDRV_SEQ_EVENT_USR5 95
#define SNDRV_SEQ_EVENT_USR6 96
#define SNDRV_SEQ_EVENT_USR7 97
#define SNDRV_SEQ_EVENT_USR8 98
#define SNDRV_SEQ_EVENT_USR9 99
/* 100-118: instrument layer - obsoleted */
/* 119-129: reserved */
/* 130-139: variable length events
* event data type = snd_seq_ev_ext
* (SNDRV_SEQ_EVENT_LENGTH_VARIABLE must be set)
*/
#define SNDRV_SEQ_EVENT_SYSEX 130 /* system exclusive data (variable length) */
#define SNDRV_SEQ_EVENT_BOUNCE 131 /* error event */
/* 132-134: reserved */
#define SNDRV_SEQ_EVENT_USR_VAR0 135
#define SNDRV_SEQ_EVENT_USR_VAR1 136
#define SNDRV_SEQ_EVENT_USR_VAR2 137
#define SNDRV_SEQ_EVENT_USR_VAR3 138
#define SNDRV_SEQ_EVENT_USR_VAR4 139
/* 150-151: kernel events with quote - DO NOT use in user clients */
#define SNDRV_SEQ_EVENT_KERNEL_ERROR 150
#define SNDRV_SEQ_EVENT_KERNEL_QUOTE 151 /* obsolete */
/* 152-191: reserved */
/* 192-254: hardware specific events */
/* 255: special event */
#define SNDRV_SEQ_EVENT_NONE 255
typedef unsigned char snd_seq_event_type_t;
/** event address */
struct snd_seq_addr {
unsigned char client; /**< Client number: 0..255, 255 = broadcast to all clients */
unsigned char port; /**< Port within client: 0..255, 255 = broadcast to all ports */
};
/** port connection */
struct snd_seq_connect {
struct snd_seq_addr sender;
struct snd_seq_addr dest;
};
#define SNDRV_SEQ_ADDRESS_UNKNOWN 253 /* unknown source */
#define SNDRV_SEQ_ADDRESS_SUBSCRIBERS 254 /* send event to all subscribed ports */
#define SNDRV_SEQ_ADDRESS_BROADCAST 255 /* send event to all queues/clients/ports/channels */
#define SNDRV_SEQ_QUEUE_DIRECT 253 /* direct dispatch */
/* event mode flag - NOTE: only 8 bits available! */
#define SNDRV_SEQ_TIME_STAMP_TICK (0<<0) /* timestamp in clock ticks */
#define SNDRV_SEQ_TIME_STAMP_REAL (1<<0) /* timestamp in real time */
#define SNDRV_SEQ_TIME_STAMP_MASK (1<<0)
#define SNDRV_SEQ_TIME_MODE_ABS (0<<1) /* absolute timestamp */
#define SNDRV_SEQ_TIME_MODE_REL (1<<1) /* relative to current time */
#define SNDRV_SEQ_TIME_MODE_MASK (1<<1)
#define SNDRV_SEQ_EVENT_LENGTH_FIXED (0<<2) /* fixed event size */
#define SNDRV_SEQ_EVENT_LENGTH_VARIABLE (1<<2) /* variable event size */
#define SNDRV_SEQ_EVENT_LENGTH_VARUSR (2<<2) /* variable event size - user memory space */
#define SNDRV_SEQ_EVENT_LENGTH_MASK (3<<2)
#define SNDRV_SEQ_PRIORITY_NORMAL (0<<4) /* normal priority */
#define SNDRV_SEQ_PRIORITY_HIGH (1<<4) /* event should be processed before others */
#define SNDRV_SEQ_PRIORITY_MASK (1<<4)
/* note event */
struct snd_seq_ev_note {
unsigned char channel;
unsigned char note;
unsigned char velocity;
unsigned char off_velocity; /* only for SNDRV_SEQ_EVENT_NOTE */
unsigned int duration; /* only for SNDRV_SEQ_EVENT_NOTE */
};
/* controller event */
struct snd_seq_ev_ctrl {
unsigned char channel;
unsigned char unused1, unused2, unused3; /* pad */
unsigned int param;
signed int value;
};
/* generic set of bytes (12x8 bit) */
struct snd_seq_ev_raw8 {
unsigned char d[12]; /* 8 bit value */
};
/* generic set of integers (3x32 bit) */
struct snd_seq_ev_raw32 {
unsigned int d[3]; /* 32 bit value */
};
/* external stored data */
struct snd_seq_ev_ext {
unsigned int len; /* length of data */
void *ptr; /* pointer to data (note: maybe 64-bit) */
} __attribute__((packed));
struct snd_seq_result {
int event; /* processed event type */
int result;