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) |
25 | int seq_client_load[15] = {[0] = SNDRV_SEQ_CLIENT_DUMMY, [1 ... 14] = -1}; |
26 | #else |
27 | int seq_client_load[15] = {[0 ... 14] = -1}; |
28 | #endif |
29 | int seq_default_timer_class = SNDRV_TIMER_CLASS_GLOBAL; |
30 | int seq_default_timer_sclass = SNDRV_TIMER_SCLASS_NONE; |
31 | int seq_default_timer_card = -1; |
32 | int 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 | ; |
39 | int seq_default_timer_subdevice = 0; |
40 | int seq_default_timer_resolution = 0; /* Hz */ |
41 | |
42 | MODULE_AUTHOR("Frank van de Pol <fvdpol@coil.demon.nl>, Jaroslav Kysela <perex@perex.cz>" ); |
43 | MODULE_DESCRIPTION("Advanced Linux Sound Architecture sequencer." ); |
44 | MODULE_LICENSE("GPL" ); |
45 | |
46 | module_param_array(seq_client_load, int, NULL, 0444); |
47 | MODULE_PARM_DESC(seq_client_load, "The numbers of global (system) clients to load through kmod." ); |
48 | module_param(seq_default_timer_class, int, 0644); |
49 | MODULE_PARM_DESC(seq_default_timer_class, "The default timer class." ); |
50 | module_param(seq_default_timer_sclass, int, 0644); |
51 | MODULE_PARM_DESC(seq_default_timer_sclass, "The default timer slave class." ); |
52 | module_param(seq_default_timer_card, int, 0644); |
53 | MODULE_PARM_DESC(seq_default_timer_card, "The default timer card number." ); |
54 | module_param(seq_default_timer_device, int, 0644); |
55 | MODULE_PARM_DESC(seq_default_timer_device, "The default timer device number." ); |
56 | module_param(seq_default_timer_subdevice, int, 0644); |
57 | MODULE_PARM_DESC(seq_default_timer_subdevice, "The default timer subdevice number." ); |
58 | module_param(seq_default_timer_resolution, int, 0644); |
59 | MODULE_PARM_DESC(seq_default_timer_resolution, "The default timer resolution in Hz." ); |
60 | |
61 | MODULE_ALIAS_CHARDEV(CONFIG_SND_MAJOR, SNDRV_MINOR_SEQUENCER); |
62 | MODULE_ALIAS("devname:snd/seq" ); |
63 | |
64 | /* |
65 | * INIT PART |
66 | */ |
67 | |
68 | static 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 | |
102 | static 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 | |
119 | module_init(alsa_seq_init) |
120 | module_exit(alsa_seq_exit) |
121 | |