Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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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 <sound/driver.h>
23#include <linux/init.h>
24#include <linux/moduleparam.h>
25#include <sound/core.h>
26#include <sound/initval.h>
27
28#include <sound/seq_kernel.h>
29#include "seq_clientmgr.h"
30#include "seq_memory.h"
31#include "seq_queue.h"
32#include "seq_lock.h"
33#include "seq_timer.h"
34#include "seq_system.h"
35#include "seq_info.h"
36#include <sound/seq_device.h>
37
38#if defined(CONFIG_SND_SEQ_DUMMY_MODULE)
39int seq_client_load[64] = {[0] = SNDRV_SEQ_CLIENT_DUMMY, [1 ... 63] = -1};
40#else
41int seq_client_load[64] = {[0 ... 63] = -1};
42#endif
43int seq_default_timer_class = SNDRV_TIMER_CLASS_GLOBAL;
44int seq_default_timer_sclass = SNDRV_TIMER_SCLASS_NONE;
45int seq_default_timer_card = -1;
46int seq_default_timer_device = SNDRV_TIMER_GLOBAL_SYSTEM;
47int seq_default_timer_subdevice = 0;
48int seq_default_timer_resolution = 0; /* Hz */
49
50MODULE_AUTHOR("Frank van de Pol <fvdpol@coil.demon.nl>, Jaroslav Kysela <perex@suse.cz>");
51MODULE_DESCRIPTION("Advanced Linux Sound Architecture sequencer.");
52MODULE_LICENSE("GPL");
53
54module_param_array(seq_client_load, int, NULL, 0444);
55MODULE_PARM_DESC(seq_client_load, "The numbers of global (system) clients to load through kmod.");
56module_param(seq_default_timer_class, int, 0644);
57MODULE_PARM_DESC(seq_default_timer_class, "The default timer class.");
58module_param(seq_default_timer_sclass, int, 0644);
59MODULE_PARM_DESC(seq_default_timer_sclass, "The default timer slave class.");
60module_param(seq_default_timer_card, int, 0644);
61MODULE_PARM_DESC(seq_default_timer_card, "The default timer card number.");
62module_param(seq_default_timer_device, int, 0644);
63MODULE_PARM_DESC(seq_default_timer_device, "The default timer device number.");
64module_param(seq_default_timer_subdevice, int, 0644);
65MODULE_PARM_DESC(seq_default_timer_subdevice, "The default timer subdevice number.");
66module_param(seq_default_timer_resolution, int, 0644);
67MODULE_PARM_DESC(seq_default_timer_resolution, "The default timer resolution in Hz.");
68
69/*
70 * INIT PART
71 */
72
73static int __init alsa_seq_init(void)
74{
75 int err;
76
77 snd_seq_autoload_lock();
78 if ((err = client_init_data()) < 0)
79 goto error;
80
81 /* init memory, room for selected events */
82 if ((err = snd_sequencer_memory_init()) < 0)
83 goto error;
84
85 /* init event queues */
86 if ((err = snd_seq_queues_init()) < 0)
87 goto error;
88
89 /* register sequencer device */
90 if ((err = snd_sequencer_device_init()) < 0)
91 goto error;
92
93 /* register proc interface */
94 if ((err = snd_seq_info_init()) < 0)
95 goto error;
96
97 /* register our internal client */
98 if ((err = snd_seq_system_client_init()) < 0)
99 goto error;
100
101 error:
102 snd_seq_autoload_unlock();
103 return err;
104}
105
106static void __exit alsa_seq_exit(void)
107{
108 /* unregister our internal client */
109 snd_seq_system_client_done();
110
111 /* unregister proc interface */
112 snd_seq_info_done();
113
114 /* delete timing queues */
115 snd_seq_queues_delete();
116
117 /* unregister sequencer device */
118 snd_sequencer_device_done();
119
120 /* release event memory */
121 snd_sequencer_memory_done();
122}
123
124module_init(alsa_seq_init)
125module_exit(alsa_seq_exit)
126
127 /* seq_clientmgr.c */
128EXPORT_SYMBOL(snd_seq_create_kernel_client);
129EXPORT_SYMBOL(snd_seq_delete_kernel_client);
130EXPORT_SYMBOL(snd_seq_kernel_client_enqueue);
131EXPORT_SYMBOL(snd_seq_kernel_client_enqueue_blocking);
132EXPORT_SYMBOL(snd_seq_kernel_client_dispatch);
133EXPORT_SYMBOL(snd_seq_kernel_client_ctl);
134EXPORT_SYMBOL(snd_seq_kernel_client_write_poll);
135EXPORT_SYMBOL(snd_seq_set_queue_tempo);
136 /* seq_memory.c */
137EXPORT_SYMBOL(snd_seq_expand_var_event);
138EXPORT_SYMBOL(snd_seq_dump_var_event);
139 /* seq_ports.c */
140EXPORT_SYMBOL(snd_seq_event_port_attach);
141EXPORT_SYMBOL(snd_seq_event_port_detach);
142 /* seq_lock.c */
143#if defined(CONFIG_SMP) || defined(CONFIG_SND_DEBUG)
144/*EXPORT_SYMBOL(snd_seq_sleep_in_lock);*/
145/*EXPORT_SYMBOL(snd_seq_sleep_timeout_in_lock);*/
146EXPORT_SYMBOL(snd_use_lock_sync_helper);
147#endif