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 <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#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 <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 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)
121