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1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * ALSA sequencer main module
4 * Copyright (c) 1998-1999 by Frank van de Pol <[email protected]>
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#else
27int seq_client_load[15] = {[0 ... 14] = -1};
28#endif
29int 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_DEFAULT
34 SNDRV_TIMER_GLOBAL_HRTIMER
35#else
36 SNDRV_TIMER_GLOBAL_SYSTEM
37#endif
38 ;
39int seq_default_timer_subdevice = 0;
40int seq_default_timer_resolution = 0; /* Hz */
41
42MODULE_AUTHOR("Frank van de Pol <[email protected]>, Jaroslav Kysela <[email protected]>");
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 PART
66 */
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)