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1// SPDX-License-Identifier: GPL-2.0-or-later2/*3 * ALSA sequencer main module4 * Copyright (c) 1998-1999 by Frank van de Pol <fvdpol@coil.demon.nl>5 */6 7#include <linux/init.h>8#include <linux/module.h>9#include <linux/device.h>10#include <sound/core.h>11#include <sound/initval.h>12 13#include <sound/seq_kernel.h>14#include "seq_clientmgr.h"15#include "seq_memory.h"16#include "seq_queue.h"17#include "seq_lock.h"18#include "seq_timer.h"19#include "seq_system.h"20#include "seq_info.h"21#include <sound/minors.h>22#include <sound/seq_device.h>23 24#if defined(CONFIG_SND_SEQ_DUMMY_MODULE)25int seq_client_load[15] = {[0] = SNDRV_SEQ_CLIENT_DUMMY, [1 ... 14] = -1};26#else27int seq_client_load[15] = {[0 ... 14] = -1};28#endif29int seq_default_timer_class = SNDRV_TIMER_CLASS_GLOBAL;30int seq_default_timer_sclass = SNDRV_TIMER_SCLASS_NONE;31int seq_default_timer_card = -1;32int seq_default_timer_device =33#ifdef CONFIG_SND_SEQ_HRTIMER_DEFAULT34 SNDRV_TIMER_GLOBAL_HRTIMER35#else36 SNDRV_TIMER_GLOBAL_SYSTEM37#endif38 ;39int seq_default_timer_subdevice = 0;40int seq_default_timer_resolution = 0; /* Hz */41 42MODULE_AUTHOR("Frank van de Pol <fvdpol@coil.demon.nl>, Jaroslav Kysela <perex@perex.cz>");43MODULE_DESCRIPTION("Advanced Linux Sound Architecture sequencer.");44MODULE_LICENSE("GPL");45 46module_param_array(seq_client_load, int, NULL, 0444);47MODULE_PARM_DESC(seq_client_load, "The numbers of global (system) clients to load through kmod.");48module_param(seq_default_timer_class, int, 0644);49MODULE_PARM_DESC(seq_default_timer_class, "The default timer class.");50module_param(seq_default_timer_sclass, int, 0644);51MODULE_PARM_DESC(seq_default_timer_sclass, "The default timer slave class.");52module_param(seq_default_timer_card, int, 0644);53MODULE_PARM_DESC(seq_default_timer_card, "The default timer card number.");54module_param(seq_default_timer_device, int, 0644);55MODULE_PARM_DESC(seq_default_timer_device, "The default timer device number.");56module_param(seq_default_timer_subdevice, int, 0644);57MODULE_PARM_DESC(seq_default_timer_subdevice, "The default timer subdevice number.");58module_param(seq_default_timer_resolution, int, 0644);59MODULE_PARM_DESC(seq_default_timer_resolution, "The default timer resolution in Hz.");60 61MODULE_ALIAS_CHARDEV(CONFIG_SND_MAJOR, SNDRV_MINOR_SEQUENCER);62MODULE_ALIAS("devname:snd/seq");63 64/*65 * INIT PART66 */67 68static int __init alsa_seq_init(void)69{70 int err;71 72 err = client_init_data();73 if (err < 0)74 goto error;75 76 /* register sequencer device */77 err = snd_sequencer_device_init();78 if (err < 0)79 goto error;80 81 /* register proc interface */82 err = snd_seq_info_init();83 if (err < 0)84 goto error_device;85 86 /* register our internal client */87 err = snd_seq_system_client_init();88 if (err < 0)89 goto error_info;90 91 snd_seq_autoload_init();92 return 0;93 94 error_info:95 snd_seq_info_done();96 error_device:97 snd_sequencer_device_done();98 error:99 return err;100}101 102static void __exit alsa_seq_exit(void)103{104 /* unregister our internal client */105 snd_seq_system_client_done();106 107 /* unregister proc interface */108 snd_seq_info_done();109 110 /* delete timing queues */111 snd_seq_queues_delete();112 113 /* unregister sequencer device */114 snd_sequencer_device_done();115 116 snd_seq_autoload_exit();117}118 119module_init(alsa_seq_init)120module_exit(alsa_seq_exit)121