/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * ALSA sequencer System Client * Copyright (c) 1998 by Frank van de Pol */ #ifndef __SND_SEQ_SYSTEM_H #define __SND_SEQ_SYSTEM_H #include /* entry points for broadcasting system events */ void snd_seq_system_broadcast(int client, int port, int type, bool atomic); /* normal system notification event broadcast */ #define notify_event(client, port, type) \ snd_seq_system_broadcast(client, port, type, false) /* notify UMP EP/FB change event */ static inline void snd_seq_system_ump_notify(int client, int block, int type, bool atomic) { /* reuse the existing snd_seq_system_broadcast(): * struct snd_seq_ev_ump_notify is compatible with struct snd_seq_addr */ snd_seq_system_broadcast(client, block, type, atomic); } #define snd_seq_system_client_ev_client_start(client) notify_event(client, 0, SNDRV_SEQ_EVENT_CLIENT_START) #define snd_seq_system_client_ev_client_exit(client) notify_event(client, 0, SNDRV_SEQ_EVENT_CLIENT_EXIT) #define snd_seq_system_client_ev_client_change(client) notify_event(client, 0, SNDRV_SEQ_EVENT_CLIENT_CHANGE) #define snd_seq_system_client_ev_port_start(client, port) notify_event(client, port, SNDRV_SEQ_EVENT_PORT_START) #define snd_seq_system_client_ev_port_exit(client, port) notify_event(client, port, SNDRV_SEQ_EVENT_PORT_EXIT) #define snd_seq_system_client_ev_port_change(client, port) notify_event(client, port, SNDRV_SEQ_EVENT_PORT_CHANGE) int snd_seq_system_notify(int client, int port, struct snd_seq_event *ev, bool atomic); /* register our internal client */ int snd_seq_system_client_init(void); /* unregister our internal client */ void snd_seq_system_client_done(void); #endif