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/module.h> 24 #include <linux/device.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/minors.h> 37 #include <sound/seq_device.h> 38 39 #if defined(CONFIG_SND_SEQ_DUMMY_MODULE) 40 int seq_client_load[15] = {[0] = SNDRV_SEQ_CLIENT_DUMMY, [1 ... 14] = -1}; 41 #else 42 int seq_client_load[15] = {[0 ... 14] = -1}; 43 #endif 44 int seq_default_timer_class = SNDRV_TIMER_CLASS_GLOBAL; 45 int seq_default_timer_sclass = SNDRV_TIMER_SCLASS_NONE; 46 int seq_default_timer_card = -1; 47 int seq_default_timer_device = 48 #ifdef CONFIG_SND_SEQ_HRTIMER_DEFAULT 49 SNDRV_TIMER_GLOBAL_HRTIMER 50 #elif defined(CONFIG_SND_SEQ_RTCTIMER_DEFAULT) 51 SNDRV_TIMER_GLOBAL_RTC 52 #else 53 SNDRV_TIMER_GLOBAL_SYSTEM 54 #endif 55 ; 56 int seq_default_timer_subdevice = 0; 57 int seq_default_timer_resolution = 0; /* Hz */ 58 59 MODULE_AUTHOR("Frank van de Pol <fvdpol@coil.demon.nl>, Jaroslav Kysela <perex@perex.cz>"); 60 MODULE_DESCRIPTION("Advanced Linux Sound Architecture sequencer."); 61 MODULE_LICENSE("GPL"); 62 63 module_param_array(seq_client_load, int, NULL, 0444); 64 MODULE_PARM_DESC(seq_client_load, "The numbers of global (system) clients to load through kmod."); 65 module_param(seq_default_timer_class, int, 0644); 66 MODULE_PARM_DESC(seq_default_timer_class, "The default timer class."); 67 module_param(seq_default_timer_sclass, int, 0644); 68 MODULE_PARM_DESC(seq_default_timer_sclass, "The default timer slave class."); 69 module_param(seq_default_timer_card, int, 0644); 70 MODULE_PARM_DESC(seq_default_timer_card, "The default timer card number."); 71 module_param(seq_default_timer_device, int, 0644); 72 MODULE_PARM_DESC(seq_default_timer_device, "The default timer device number."); 73 module_param(seq_default_timer_subdevice, int, 0644); 74 MODULE_PARM_DESC(seq_default_timer_subdevice, "The default timer subdevice number."); 75 module_param(seq_default_timer_resolution, int, 0644); 76 MODULE_PARM_DESC(seq_default_timer_resolution, "The default timer resolution in Hz."); 77 78 MODULE_ALIAS_CHARDEV(CONFIG_SND_MAJOR, SNDRV_MINOR_SEQUENCER); 79 MODULE_ALIAS("devname:snd/seq"); 80 81 /* 82 * INIT PART 83 */ 84 85 static int __init alsa_seq_init(void) 86 { 87 int err; 88 89 snd_seq_autoload_lock(); 90 if ((err = client_init_data()) < 0) 91 goto error; 92 93 /* init memory, room for selected events */ 94 if ((err = snd_sequencer_memory_init()) < 0) 95 goto error; 96 97 /* init event queues */ 98 if ((err = snd_seq_queues_init()) < 0) 99 goto error; 100 101 /* register sequencer device */ 102 if ((err = snd_sequencer_device_init()) < 0) 103 goto error; 104 105 /* register proc interface */ 106 if ((err = snd_seq_info_init()) < 0) 107 goto error; 108 109 /* register our internal client */ 110 if ((err = snd_seq_system_client_init()) < 0) 111 goto error; 112 113 error: 114 snd_seq_autoload_unlock(); 115 return err; 116 } 117 118 static void __exit alsa_seq_exit(void) 119 { 120 /* unregister our internal client */ 121 snd_seq_system_client_done(); 122 123 /* unregister proc interface */ 124 snd_seq_info_done(); 125 126 /* delete timing queues */ 127 snd_seq_queues_delete(); 128 129 /* unregister sequencer device */ 130 snd_sequencer_device_done(); 131 132 /* release event memory */ 133 snd_sequencer_memory_done(); 134 } 135 136 module_init(alsa_seq_init) 137 module_exit(alsa_seq_exit) 138