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/minors.h>
36 #include <sound/seq_device.h>
37
38 #if defined(CONFIG_SND_SEQ_DUMMY_MODULE)
39 int seq_client_load[15] = {[0] = SNDRV_SEQ_CLIENT_DUMMY, [1 ... 14] = -1};
40 #else
41 int seq_client_load[15] = {[0 ... 14] = -1};
42 #endif
43 int seq_default_timer_class = SNDRV_TIMER_CLASS_GLOBAL;
44 int seq_default_timer_sclass = SNDRV_TIMER_SCLASS_NONE;
45 int seq_default_timer_card = -1;
46 int seq_default_timer_device =
47 #ifdef CONFIG_SND_SEQ_HRTIMER_DEFAULT
48 SNDRV_TIMER_GLOBAL_HRTIMER
49 #elif defined(CONFIG_SND_SEQ_RTCTIMER_DEFAULT)
50 SNDRV_TIMER_GLOBAL_RTC
51 #else
52 SNDRV_TIMER_GLOBAL_SYSTEM
53 #endif
54 ;
55 int seq_default_timer_subdevice = 0;
56 int seq_default_timer_resolution = 0; /* Hz */
57
58 MODULE_AUTHOR("Frank van de Pol <fvdpol@coil.demon.nl>, Jaroslav Kysela <perex@perex.cz>");
59 MODULE_DESCRIPTION("Advanced Linux Sound Architecture sequencer.");
60 MODULE_LICENSE("GPL");
61
62 module_param_array(seq_client_load, int, NULL, 0444);
63 MODULE_PARM_DESC(seq_client_load, "The numbers of global (system) clients to load through kmod.");
64 module_param(seq_default_timer_class, int, 0644);
65 MODULE_PARM_DESC(seq_default_timer_class, "The default timer class.");
66 module_param(seq_default_timer_sclass, int, 0644);
67 MODULE_PARM_DESC(seq_default_timer_sclass, "The default timer slave class.");
68 module_param(seq_default_timer_card, int, 0644);
69 MODULE_PARM_DESC(seq_default_timer_card, "The default timer card number.");
70 module_param(seq_default_timer_device, int, 0644);
71 MODULE_PARM_DESC(seq_default_timer_device, "The default timer device number.");
72 module_param(seq_default_timer_subdevice, int, 0644);
73 MODULE_PARM_DESC(seq_default_timer_subdevice, "The default timer subdevice number.");
74 module_param(seq_default_timer_resolution, int, 0644);
75 MODULE_PARM_DESC(seq_default_timer_resolution, "The default timer resolution in Hz.");
76
77 MODULE_ALIAS_CHARDEV(CONFIG_SND_MAJOR, SNDRV_MINOR_SEQUENCER);
78 MODULE_ALIAS("devname:snd/seq");
79
80 /*
81 * INIT PART
82 */
83
alsa_seq_init(void)84 static int __init alsa_seq_init(void)
85 {
86 int err;
87
88 snd_seq_autoload_lock();
89 if ((err = client_init_data()) < 0)
90 goto error;
91
92 /* init memory, room for selected events */
93 if ((err = snd_sequencer_memory_init()) < 0)
94 goto error;
95
96 /* init event queues */
97 if ((err = snd_seq_queues_init()) < 0)
98 goto error;
99
100 /* register sequencer device */
101 if ((err = snd_sequencer_device_init()) < 0)
102 goto error;
103
104 /* register proc interface */
105 if ((err = snd_seq_info_init()) < 0)
106 goto error;
107
108 /* register our internal client */
109 if ((err = snd_seq_system_client_init()) < 0)
110 goto error;
111
112 error:
113 snd_seq_autoload_unlock();
114 return err;
115 }
116
alsa_seq_exit(void)117 static void __exit alsa_seq_exit(void)
118 {
119 /* unregister our internal client */
120 snd_seq_system_client_done();
121
122 /* unregister proc interface */
123 snd_seq_info_done();
124
125 /* delete timing queues */
126 snd_seq_queues_delete();
127
128 /* unregister sequencer device */
129 snd_sequencer_device_done();
130
131 /* release event memory */
132 snd_sequencer_memory_done();
133 }
134
135 module_init(alsa_seq_init)
136 module_exit(alsa_seq_exit)
137