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sound/core/seq/seq.c 3.9 KB
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
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  /*
   *  ALSA sequencer main module
   *  Copyright (c) 1998-1999 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
   *
   */
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
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  #include <linux/init.h>
  #include <linux/moduleparam.h>
  #include <sound/core.h>
  #include <sound/initval.h>
  
  #include <sound/seq_kernel.h>
  #include "seq_clientmgr.h"
  #include "seq_memory.h"
  #include "seq_queue.h"
  #include "seq_lock.h"
  #include "seq_timer.h"
  #include "seq_system.h"
  #include "seq_info.h"
  #include <sound/seq_device.h>
  
  #if defined(CONFIG_SND_SEQ_DUMMY_MODULE)
aa1e77e69   Clemens Ladisch   [ALSA] seq: reorg...
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  int seq_client_load[15] = {[0] = SNDRV_SEQ_CLIENT_DUMMY, [1 ... 14] = -1};
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
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  #else
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  int seq_client_load[15] = {[0 ... 14] = -1};
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  #endif
  int seq_default_timer_class = SNDRV_TIMER_CLASS_GLOBAL;
  int seq_default_timer_sclass = SNDRV_TIMER_SCLASS_NONE;
  int seq_default_timer_card = -1;
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  int seq_default_timer_device =
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  #ifdef CONFIG_SND_SEQ_HRTIMER_DEFAULT
  	SNDRV_TIMER_GLOBAL_HRTIMER
  #elif defined(CONFIG_SND_SEQ_RTCTIMER_DEFAULT)
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  	SNDRV_TIMER_GLOBAL_RTC
  #else
  	SNDRV_TIMER_GLOBAL_SYSTEM
  #endif
  	;
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  int seq_default_timer_subdevice = 0;
  int seq_default_timer_resolution = 0;	/* Hz */
c1017a4cd   Jaroslav Kysela   [ALSA] Changed Ja...
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  MODULE_AUTHOR("Frank van de Pol <fvdpol@coil.demon.nl>, Jaroslav Kysela <perex@perex.cz>");
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
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  MODULE_DESCRIPTION("Advanced Linux Sound Architecture sequencer.");
  MODULE_LICENSE("GPL");
  
  module_param_array(seq_client_load, int, NULL, 0444);
  MODULE_PARM_DESC(seq_client_load, "The numbers of global (system) clients to load through kmod.");
  module_param(seq_default_timer_class, int, 0644);
  MODULE_PARM_DESC(seq_default_timer_class, "The default timer class.");
  module_param(seq_default_timer_sclass, int, 0644);
  MODULE_PARM_DESC(seq_default_timer_sclass, "The default timer slave class.");
  module_param(seq_default_timer_card, int, 0644);
  MODULE_PARM_DESC(seq_default_timer_card, "The default timer card number.");
  module_param(seq_default_timer_device, int, 0644);
  MODULE_PARM_DESC(seq_default_timer_device, "The default timer device number.");
  module_param(seq_default_timer_subdevice, int, 0644);
  MODULE_PARM_DESC(seq_default_timer_subdevice, "The default timer subdevice number.");
  module_param(seq_default_timer_resolution, int, 0644);
  MODULE_PARM_DESC(seq_default_timer_resolution, "The default timer resolution in Hz.");
  
  /*
   *  INIT PART
   */
  
  static int __init alsa_seq_init(void)
  {
  	int err;
  
  	snd_seq_autoload_lock();
  	if ((err = client_init_data()) < 0)
  		goto error;
  
  	/* init memory, room for selected events */
  	if ((err = snd_sequencer_memory_init()) < 0)
  		goto error;
  
  	/* init event queues */
  	if ((err = snd_seq_queues_init()) < 0)
  		goto error;
  
  	/* register sequencer device */
  	if ((err = snd_sequencer_device_init()) < 0)
  		goto error;
  
  	/* register proc interface */
  	if ((err = snd_seq_info_init()) < 0)
  		goto error;
  
  	/* register our internal client */
  	if ((err = snd_seq_system_client_init()) < 0)
  		goto error;
  
   error:
  	snd_seq_autoload_unlock();
  	return err;
  }
  
  static void __exit alsa_seq_exit(void)
  {
  	/* unregister our internal client */
  	snd_seq_system_client_done();
  
  	/* unregister proc interface */
  	snd_seq_info_done();
  	
  	/* delete timing queues */
  	snd_seq_queues_delete();
  
  	/* unregister sequencer device */
  	snd_sequencer_device_done();
  
  	/* release event memory */
  	snd_sequencer_memory_done();
  }
  
  module_init(alsa_seq_init)
  module_exit(alsa_seq_exit)