diff options
Diffstat (limited to 'sound/core/seq/seq.c')
| -rw-r--r-- | sound/core/seq/seq.c | 137 |
1 files changed, 137 insertions, 0 deletions
diff --git a/sound/core/seq/seq.c b/sound/core/seq/seq.c new file mode 100644 index 00000000..71211056 --- /dev/null +++ b/sound/core/seq/seq.c @@ -0,0 +1,137 @@ +/* + * 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 + * + */ + +#include <linux/init.h> +#include <linux/module.h> +#include <linux/device.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/minors.h> +#include <sound/seq_device.h> + +#if defined(CONFIG_SND_SEQ_DUMMY_MODULE) +int seq_client_load[15] = {[0] = SNDRV_SEQ_CLIENT_DUMMY, [1 ... 14] = -1}; +#else +int seq_client_load[15] = {[0 ... 14] = -1}; +#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; +int seq_default_timer_device = +#ifdef CONFIG_SND_SEQ_HRTIMER_DEFAULT + SNDRV_TIMER_GLOBAL_HRTIMER +#elif defined(CONFIG_SND_SEQ_RTCTIMER_DEFAULT) + SNDRV_TIMER_GLOBAL_RTC +#else + SNDRV_TIMER_GLOBAL_SYSTEM +#endif + ; +int seq_default_timer_subdevice = 0; +int seq_default_timer_resolution = 0; /* Hz */ + +MODULE_AUTHOR("Frank van de Pol <fvdpol@coil.demon.nl>, Jaroslav Kysela <perex@perex.cz>"); +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."); + +MODULE_ALIAS_CHARDEV(CONFIG_SND_MAJOR, SNDRV_MINOR_SEQUENCER); +MODULE_ALIAS("devname:snd/seq"); + +/* + * 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) |