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kernel/linux-rt-4.4.41/sound/core/seq/seq_system.h 1.97 KB
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  /*
   *  ALSA sequencer System Client
   *  Copyright (c) 1998 by Frank van de Pol <fvdpol@coil.demon.nl>
   *
   *
   *   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 __SND_SEQ_SYSTEM_H
  #define __SND_SEQ_SYSTEM_H
  
  #include <sound/seq_kernel.h>
  
  
  /* entry points for broadcasting system events */
  void snd_seq_system_broadcast(int client, int port, int type);
  
  #define snd_seq_system_client_ev_client_start(client) snd_seq_system_broadcast(client, 0, SNDRV_SEQ_EVENT_CLIENT_START)
  #define snd_seq_system_client_ev_client_exit(client) snd_seq_system_broadcast(client, 0, SNDRV_SEQ_EVENT_CLIENT_EXIT)
  #define snd_seq_system_client_ev_client_change(client) snd_seq_system_broadcast(client, 0, SNDRV_SEQ_EVENT_CLIENT_CHANGE)
  #define snd_seq_system_client_ev_port_start(client, port) snd_seq_system_broadcast(client, port, SNDRV_SEQ_EVENT_PORT_START)
  #define snd_seq_system_client_ev_port_exit(client, port) snd_seq_system_broadcast(client, port, SNDRV_SEQ_EVENT_PORT_EXIT)
  #define snd_seq_system_client_ev_port_change(client, port) snd_seq_system_broadcast(client, port, SNDRV_SEQ_EVENT_PORT_CHANGE)
  
  int snd_seq_system_notify(int client, int port, struct snd_seq_event *ev);
  
  /* register our internal client */
  int snd_seq_system_client_init(void);
  
  /* unregister our internal client */
  void snd_seq_system_client_done(void);
  
  
  #endif