aboutsummaryrefslogtreecommitdiffstats
path: root/sound/core/seq/seq.c
blob: 20f954bc7aa0c0c98d51f169cfac7f2ca8bed3d0 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
/*
 *  ALSA sequencer main module
 *  Copyright (c) 1998-1999 by Frank van de Pol <fvdpol@coil.demon.nl>
 *
 *
 *   This program is free software; you can redistribute it and/or modify
 *   it under the terms of the GNU General Public License as published by
 *   the Free Software Foundation; either version 2 of the License, or
 *   (at your option) any later version.
 *
 *   This program is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *   GNU General Public License for more details.
 *
 *   You should have received a copy of the GNU General Public License
 *   along with this program; if not, write to the Free Software
 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
 *
 */

#include <sound/driver.h>
#include <linux/init.h>
#include <linux/moduleparam.h>
#include <sound/core.h>
#include <sound/initval.h>

#include <sound/seq_kernel.h>
#include "seq_clientmgr.h"
#include "seq_memory.h"
#include "seq_queue.h"
#include "seq_lock.h"
#include "seq_timer.h"
#include "seq_system.h"
#include "seq_info.h"
#include <sound/seq_device.h>

#if defined(CONFIG_SND_SEQ_DUMMY_MODULE)
int seq_client_load[15] = {[0] = SNDRV_SEQ_CLIENT_DUMMY, [1 ... 14] = -1};
#else
int seq_client_load[15] = {[0 ... 14] = -1};
#endif
int seq_default_timer_class = SNDRV_TIMER_CLASS_GLOBAL;
int seq_default_timer_sclass = SNDRV_TIMER_SCLASS_NONE;
int seq_default_timer_card = -1;
int seq_default_timer_device =
#ifdef CONFIG_SND_SEQ_RTCTIMER_DEFAULT
	SNDRV_TIMER_GLOBAL_RTC
#else
	SNDRV_TIMER_GLOBAL_SYSTEM
#endif
	;
int seq_default_timer_subdevice = 0;
int seq_default_timer_resolution = 0;	/* Hz */

MODULE_AUTHOR("Frank van de Pol <fvdpol@coil.demon.nl>, Jaroslav Kysela <perex@suse.cz>");
MODULE_DESCRIPTION("Advanced Linux Sound Architecture sequencer.");
MODULE_LICENSE("GPL");

module_param_array(seq_client_load, int, NULL, 0444);
MODULE_PARM_DESC(seq_client_load, "The numbers of global (system) clients to load through kmod.");
module_param(seq_default_timer_class, int, 0644);
MODULE_PARM_DESC(seq_default_timer_class, "The default timer class.");
module_param(seq_default_timer_sclass, int, 0644);
MODULE_PARM_DESC(seq_default_timer_sclass, "The default timer slave class.");
module_param(seq_default_timer_card, int, 0644);
MODULE_PARM_DESC(seq_default_timer_card, "The default timer card number.");
module_param(seq_default_timer_device, int, 0644);
MODULE_PARM_DESC(seq_default_timer_device, "The default timer device number.");
module_param(seq_default_timer_subdevice, int, 0644);
MODULE_PARM_DESC(seq_default_timer_subdevice, "The default timer subdevice number.");
module_param(seq_default_timer_resolution, int, 0644);
MODULE_PARM_DESC(seq_default_timer_resolution, "The default timer resolution in Hz.");

/*
 *  INIT PART
 */

static int __init alsa_seq_init(void)
{
	int err;

	snd_seq_autoload_lock();
	if ((err = client_init_data()) < 0)
		goto error;

	/* init memory, room for selected events */
	if ((err = snd_sequencer_memory_init()) < 0)
		goto error;

	/* init event queues */
	if ((err = snd_seq_queues_init()) < 0)
		goto error;

	/* register sequencer device */
	if ((err = snd_sequencer_device_init()) < 0)
		goto error;

	/* register proc interface */
	if ((err = snd_seq_info_init()) < 0)
		goto error;

	/* register our internal client */
	if ((err = snd_seq_system_client_init()) < 0)
		goto error;

 error:
	snd_seq_autoload_unlock();
	return err;
}

static void __exit alsa_seq_exit(void)
{
	/* unregister our internal client */
	snd_seq_system_client_done();

	/* unregister proc interface */
	snd_seq_info_done();
	
	/* delete timing queues */
	snd_seq_queues_delete();

	/* unregister sequencer device */
	snd_sequencer_device_done();

	/* release event memory */
	snd_sequencer_memory_done();
}

module_init(alsa_seq_init)
module_exit(alsa_seq_exit)

  /* seq_clientmgr.c */
EXPORT_SYMBOL(snd_seq_create_kernel_client);
EXPORT_SYMBOL(snd_seq_delete_kernel_client);
EXPORT_SYMBOL(snd_seq_kernel_client_enqueue);
EXPORT_SYMBOL(snd_seq_kernel_client_enqueue_blocking);
EXPORT_SYMBOL(snd_seq_kernel_client_dispatch);
EXPORT_SYMBOL(snd_seq_kernel_client_ctl);
EXPORT_SYMBOL(snd_seq_kernel_client_write_poll);
EXPORT_SYMBOL(snd_seq_set_queue_tempo);
  /* seq_memory.c */
EXPORT_SYMBOL(snd_seq_expand_var_event);
EXPORT_SYMBOL(snd_seq_dump_var_event);
  /* seq_ports.c */
EXPORT_SYMBOL(snd_seq_event_port_attach);
EXPORT_SYMBOL(snd_seq_event_port_detach);
  /* seq_lock.c */
#if defined(CONFIG_SMP) || defined(CONFIG_SND_DEBUG)
/*EXPORT_SYMBOL(snd_seq_sleep_in_lock);*/
/*EXPORT_SYMBOL(snd_seq_sleep_timeout_in_lock);*/
EXPORT_SYMBOL(snd_use_lock_sync_helper);
#endif