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 148