core/seq/seq_system.h

0001 /* SPDX-License-Identifier: GPL-2.0-or-later */
0002 /*
0003  *  ALSA sequencer System Client
0004  *  Copyright (c) 1998 by Frank van de Pol <fvdpol@coil.demon.nl>
0005  */
0006 #ifndef __SND_SEQ_SYSTEM_H
0007 #define __SND_SEQ_SYSTEM_H
0008
0009 #include <sound/seq_kernel.h>
0010
0011
0012 /* entry points for broadcasting system events */
0013 void snd_seq_system_broadcast(int client, int port, int type);
0014
0015 #define snd_seq_system_client_ev_client_start(client) snd_seq_system_broadcast(client, 0, SNDRV_SEQ_EVENT_CLIENT_START)
0016 #define snd_seq_system_client_ev_client_exit(client) snd_seq_system_broadcast(client, 0, SNDRV_SEQ_EVENT_CLIENT_EXIT)
0017 #define snd_seq_system_client_ev_client_change(client) snd_seq_system_broadcast(client, 0, SNDRV_SEQ_EVENT_CLIENT_CHANGE)
0018 #define snd_seq_system_client_ev_port_start(client, port) snd_seq_system_broadcast(client, port, SNDRV_SEQ_EVENT_PORT_START)
0019 #define snd_seq_system_client_ev_port_exit(client, port) snd_seq_system_broadcast(client, port, SNDRV_SEQ_EVENT_PORT_EXIT)
0020 #define snd_seq_system_client_ev_port_change(client, port) snd_seq_system_broadcast(client, port, SNDRV_SEQ_EVENT_PORT_CHANGE)
0021
0022 int snd_seq_system_notify(int client, int port, struct snd_seq_event *ev);
0023
0024 /* register our internal client */
0025 int snd_seq_system_client_init(void);
0026
0027 /* unregister our internal client */
0028 void snd_seq_system_client_done(void);
0029
0030
0031 #endif