Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
1/*
2 * ALSA sequencer main module
3 * Copyright (c) 1998-1999 by Frank van de Pol <fvdpol@coil.demon.nl>
4 *
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 *
20 */
21
22#include <linux/init.h>
23#include <linux/moduleparam.h>
24#include <sound/core.h>
25#include <sound/initval.h>
26
27#include <sound/seq_kernel.h>
28#include "seq_clientmgr.h"
29#include "seq_memory.h"
30#include "seq_queue.h"
31#include "seq_lock.h"
32#include "seq_timer.h"
33#include "seq_system.h"
34#include "seq_info.h"
35#include <sound/seq_device.h>
36
37#if defined(CONFIG_SND_SEQ_DUMMY_MODULE)
38int seq_client_load[15] = {[0] = SNDRV_SEQ_CLIENT_DUMMY, [1 ... 14] = -1};
39#else
40int seq_client_load[15] = {[0 ... 14] = -1};
41#endif
42int seq_default_timer_class = SNDRV_TIMER_CLASS_GLOBAL;
43int seq_default_timer_sclass = SNDRV_TIMER_SCLASS_NONE;
44int seq_default_timer_card = -1;
45int seq_default_timer_device =
46#ifdef CONFIG_SND_SEQ_RTCTIMER_DEFAULT
47 SNDRV_TIMER_GLOBAL_RTC
48#else
49 SNDRV_TIMER_GLOBAL_SYSTEM
50#endif
51 ;
52int seq_default_timer_subdevice = 0;
53int seq_default_timer_resolution = 0; /* Hz */
54
55MODULE_AUTHOR("Frank van de Pol <fvdpol@coil.demon.nl>, Jaroslav Kysela <perex@perex.cz>");
56MODULE_DESCRIPTION("Advanced Linux Sound Architecture sequencer.");
57MODULE_LICENSE("GPL");
58
59module_param_array(seq_client_load, int, NULL, 0444);
60MODULE_PARM_DESC(seq_client_load, "The numbers of global (system) clients to load through kmod.");
61module_param(seq_default_timer_class, int, 0644);
62MODULE_PARM_DESC(seq_default_timer_class, "The default timer class.");
63module_param(seq_default_timer_sclass, int, 0644);
64MODULE_PARM_DESC(seq_default_timer_sclass, "The default timer slave class.");
65module_param(seq_default_timer_card, int, 0644);
66MODULE_PARM_DESC(seq_default_timer_card, "The default timer card number.");
67module_param(seq_default_timer_device, int, 0644);
68MODULE_PARM_DESC(seq_default_timer_device, "The default timer device number.");
69module_param(seq_default_timer_subdevice, int, 0644);
70MODULE_PARM_DESC(seq_default_timer_subdevice, "The default timer subdevice number.");
71module_param(seq_default_timer_resolution, int, 0644);
72MODULE_PARM_DESC(seq_default_timer_resolution, "The default timer resolution in Hz.");
73
74/*
75 * INIT PART
76 */
77
78static int __init alsa_seq_init(void)
79{
80 int err;
81
82 snd_seq_autoload_lock();
83 if ((err = client_init_data()) < 0)
84 goto error;
85
86 /* init memory, room for selected events */
87 if ((err = snd_sequencer_memory_init()) < 0)
88 goto error;
89
90 /* init event queues */
91 if ((err = snd_seq_queues_init()) < 0)
92 goto error;
93
94 /* register sequencer device */
95 if ((err = snd_sequencer_device_init()) < 0)
96 goto error;
97
98 /* register proc interface */
99 if ((err = snd_seq_info_init()) < 0)
100 goto error;
101
102 /* register our internal client */
103 if ((err = snd_seq_system_client_init()) < 0)
104 goto error;
105
106 error:
107 snd_seq_autoload_unlock();
108 return err;
109}
110
111static void __exit alsa_seq_exit(void)
112{
113 /* unregister our internal client */
114 snd_seq_system_client_done();
115
116 /* unregister proc interface */
117 snd_seq_info_done();
118
119 /* delete timing queues */
120 snd_seq_queues_delete();
121
122 /* unregister sequencer device */
123 snd_sequencer_device_done();
124
125 /* release event memory */
126 snd_sequencer_memory_done();
127}
128
129module_init(alsa_seq_init)
130module_exit(alsa_seq_exit)