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1da177e4 LT |
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) | |
39 | int seq_client_load[64] = {[0] = SNDRV_SEQ_CLIENT_DUMMY, [1 ... 63] = -1}; | |
40 | #else | |
41 | int seq_client_load[64] = {[0 ... 63] = -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 = SNDRV_TIMER_GLOBAL_SYSTEM; | |
47 | int seq_default_timer_subdevice = 0; | |
48 | int seq_default_timer_resolution = 0; /* Hz */ | |
49 | ||
50 | MODULE_AUTHOR("Frank van de Pol <fvdpol@coil.demon.nl>, Jaroslav Kysela <perex@suse.cz>"); | |
51 | MODULE_DESCRIPTION("Advanced Linux Sound Architecture sequencer."); | |
52 | MODULE_LICENSE("GPL"); | |
53 | ||
54 | module_param_array(seq_client_load, int, NULL, 0444); | |
55 | MODULE_PARM_DESC(seq_client_load, "The numbers of global (system) clients to load through kmod."); | |
56 | module_param(seq_default_timer_class, int, 0644); | |
57 | MODULE_PARM_DESC(seq_default_timer_class, "The default timer class."); | |
58 | module_param(seq_default_timer_sclass, int, 0644); | |
59 | MODULE_PARM_DESC(seq_default_timer_sclass, "The default timer slave class."); | |
60 | module_param(seq_default_timer_card, int, 0644); | |
61 | MODULE_PARM_DESC(seq_default_timer_card, "The default timer card number."); | |
62 | module_param(seq_default_timer_device, int, 0644); | |
63 | MODULE_PARM_DESC(seq_default_timer_device, "The default timer device number."); | |
64 | module_param(seq_default_timer_subdevice, int, 0644); | |
65 | MODULE_PARM_DESC(seq_default_timer_subdevice, "The default timer subdevice number."); | |
66 | module_param(seq_default_timer_resolution, int, 0644); | |
67 | MODULE_PARM_DESC(seq_default_timer_resolution, "The default timer resolution in Hz."); | |
68 | ||
69 | /* | |
70 | * INIT PART | |
71 | */ | |
72 | ||
73 | static 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 | ||
106 | static 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 | ||
124 | module_init(alsa_seq_init) | |
125 | module_exit(alsa_seq_exit) | |
126 | ||
127 | /* seq_clientmgr.c */ | |
128 | EXPORT_SYMBOL(snd_seq_create_kernel_client); | |
129 | EXPORT_SYMBOL(snd_seq_delete_kernel_client); | |
130 | EXPORT_SYMBOL(snd_seq_kernel_client_enqueue); | |
131 | EXPORT_SYMBOL(snd_seq_kernel_client_enqueue_blocking); | |
132 | EXPORT_SYMBOL(snd_seq_kernel_client_dispatch); | |
133 | EXPORT_SYMBOL(snd_seq_kernel_client_ctl); | |
134 | EXPORT_SYMBOL(snd_seq_kernel_client_write_poll); | |
135 | EXPORT_SYMBOL(snd_seq_set_queue_tempo); | |
136 | /* seq_memory.c */ | |
137 | EXPORT_SYMBOL(snd_seq_expand_var_event); | |
138 | EXPORT_SYMBOL(snd_seq_dump_var_event); | |
139 | /* seq_ports.c */ | |
140 | EXPORT_SYMBOL(snd_seq_event_port_attach); | |
141 | EXPORT_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);*/ | |
146 | EXPORT_SYMBOL(snd_use_lock_sync_helper); | |
147 | #endif |