core.h revision 6fdb94bd95dc7a2effcbffa7a1d9e792cade57b6
11da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifndef __SOUND_CORE_H 21da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define __SOUND_CORE_H 31da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 41da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 51da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Main header file for the ALSA driver 61da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Copyright (c) 1994-2001 by Jaroslav Kysela <perex@suse.cz> 71da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 81da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 91da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This program is free software; you can redistribute it and/or modify 101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * it under the terms of the GNU General Public License as published by 111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * the Free Software Foundation; either version 2 of the License, or 121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * (at your option) any later version. 131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This program is distributed in the hope that it will be useful, 151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * but WITHOUT ANY WARRANTY; without even the implied warranty of 161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * GNU General Public License for more details. 181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * You should have received a copy of the GNU General Public License 201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * along with this program; if not, write to the Free Software 211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/sched.h> /* wake_up() */ 261a60d4c5a0c4028559585a74e48593b16e1ca9b2Ingo Molnar#include <linux/mutex.h> /* struct mutex */ 271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/rwsem.h> /* struct rw_semaphore */ 281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/workqueue.h> /* struct workqueue_struct */ 291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/pm.h> /* pm_message_t */ 301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* forward declarations */ 321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_PCI 331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct pci_dev; 341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_SBUS 361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct sbus_dev; 371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* device allocation stuff */ 401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define SNDRV_DEV_TYPE_RANGE_SIZE 0x1000 421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 43512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwaitypedef int __bitwise snd_device_type_t; 44512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwai#define SNDRV_DEV_TOPLEVEL ((__force snd_device_type_t) 0) 45512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwai#define SNDRV_DEV_CONTROL ((__force snd_device_type_t) 1) 46512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwai#define SNDRV_DEV_LOWLEVEL_PRE ((__force snd_device_type_t) 2) 47512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwai#define SNDRV_DEV_LOWLEVEL_NORMAL ((__force snd_device_type_t) 0x1000) 48512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwai#define SNDRV_DEV_PCM ((__force snd_device_type_t) 0x1001) 49512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwai#define SNDRV_DEV_RAWMIDI ((__force snd_device_type_t) 0x1002) 50512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwai#define SNDRV_DEV_TIMER ((__force snd_device_type_t) 0x1003) 51512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwai#define SNDRV_DEV_SEQUENCER ((__force snd_device_type_t) 0x1004) 52512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwai#define SNDRV_DEV_HWDEP ((__force snd_device_type_t) 0x1005) 53512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwai#define SNDRV_DEV_INFO ((__force snd_device_type_t) 0x1006) 54512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwai#define SNDRV_DEV_BUS ((__force snd_device_type_t) 0x1007) 55512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwai#define SNDRV_DEV_CODEC ((__force snd_device_type_t) 0x1008) 56512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwai#define SNDRV_DEV_LOWLEVEL ((__force snd_device_type_t) 0x2000) 57512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwai 58512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwaitypedef int __bitwise snd_device_state_t; 59512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwai#define SNDRV_DEV_BUILD ((__force snd_device_state_t) 0) 60512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwai#define SNDRV_DEV_REGISTERED ((__force snd_device_state_t) 1) 61512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwai#define SNDRV_DEV_DISCONNECTED ((__force snd_device_state_t) 2) 62512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwai 63512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwaitypedef int __bitwise snd_device_cmd_t; 64512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwai#define SNDRV_DEV_CMD_PRE ((__force snd_device_cmd_t) 0) 65512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwai#define SNDRV_DEV_CMD_NORMAL ((__force snd_device_cmd_t) 1) 66512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwai#define SNDRV_DEV_CMD_POST ((__force snd_device_cmd_t) 2) 67512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwai 68512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwaistruct snd_device; 69512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwai 70512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwaistruct snd_device_ops { 71512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwai int (*dev_free)(struct snd_device *dev); 72512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwai int (*dev_register)(struct snd_device *dev); 73512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwai int (*dev_disconnect)(struct snd_device *dev); 74512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwai int (*dev_unregister)(struct snd_device *dev); 75512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwai}; 76512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwai 77512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwaistruct snd_device { 781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct list_head list; /* list of registered devices */ 79512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwai struct snd_card *card; /* card which holds this device */ 801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds snd_device_state_t state; /* state of the device */ 811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds snd_device_type_t type; /* device type */ 821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void *device_data; /* device structure */ 83512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwai struct snd_device_ops *ops; /* operations */ 841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 86512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwai#define snd_device(n) list_entry(n, struct snd_device, list) 871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* monitor files for graceful shutdown (hotplug) */ 891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct snd_monitor_file { 911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct file *file; 921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct snd_monitor_file *next; 931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 95d5750f67853350373fc1d5698c3a58ea16eddf4cHenrik Kretzschmarstruct snd_shutdown_f_ops; /* define it later in init.c */ 961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* main structure for soundcard */ 981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 99512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwaistruct snd_card { 100d5750f67853350373fc1d5698c3a58ea16eddf4cHenrik Kretzschmar int number; /* number of soundcard (index to 101d5750f67853350373fc1d5698c3a58ea16eddf4cHenrik Kretzschmar snd_cards) */ 1021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char id[16]; /* id string of this card */ 1041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char driver[16]; /* driver name */ 1051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char shortname[32]; /* short name of this soundcard */ 1061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char longname[80]; /* name of this soundcard */ 1071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char mixername[80]; /* mixer name */ 108d5750f67853350373fc1d5698c3a58ea16eddf4cHenrik Kretzschmar char components[80]; /* card components delimited with 109d5750f67853350373fc1d5698c3a58ea16eddf4cHenrik Kretzschmar space */ 1101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct module *module; /* top-level module */ 1111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void *private_data; /* private data for soundcard */ 113512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwai void (*private_free) (struct snd_card *card); /* callback for freeing of 114d5750f67853350373fc1d5698c3a58ea16eddf4cHenrik Kretzschmar private data */ 1151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct list_head devices; /* devices */ 1161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int last_numid; /* last used numeric ID */ 1181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct rw_semaphore controls_rwsem; /* controls list lock */ 1191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rwlock_t ctl_files_rwlock; /* ctl_files list lock */ 1201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int controls_count; /* count of all controls */ 1211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int user_ctl_count; /* count of all user controls */ 1221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct list_head controls; /* all controls for this card */ 1231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct list_head ctl_files; /* active control files */ 1241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 125512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwai struct snd_info_entry *proc_root; /* root for soundcard specific files */ 126512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwai struct snd_info_entry *proc_id; /* the card id */ 1271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct proc_dir_entry *proc_root_link; /* number link to real id */ 1281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct snd_monitor_file *files; /* all files associated to this card */ 130d5750f67853350373fc1d5698c3a58ea16eddf4cHenrik Kretzschmar struct snd_shutdown_f_ops *s_f_ops; /* file operations in the shutdown 131d5750f67853350373fc1d5698c3a58ea16eddf4cHenrik Kretzschmar state */ 1321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spinlock_t files_lock; /* lock the files for this card */ 1331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int shutdown; /* this card is going down */ 1341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds wait_queue_head_t shutdown_sleep; 1351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct work_struct free_workq; /* for free in workqueue */ 1361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct device *dev; 1371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_PM 1391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int power_state; /* power state */ 1401a60d4c5a0c4028559585a74e48593b16e1ca9b2Ingo Molnar struct mutex power_lock; /* power lock */ 1411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds wait_queue_head_t power_sleep; 1421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 1431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#if defined(CONFIG_SND_MIXER_OSS) || defined(CONFIG_SND_MIXER_OSS_MODULE) 145512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwai struct snd_mixer_oss *mixer_oss; 1461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int mixer_oss_change_count; 1471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 1481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 1491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_PM 151512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwaistatic inline void snd_power_lock(struct snd_card *card) 1521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1531a60d4c5a0c4028559585a74e48593b16e1ca9b2Ingo Molnar mutex_lock(&card->power_lock); 1541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 156512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwaistatic inline void snd_power_unlock(struct snd_card *card) 1571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1581a60d4c5a0c4028559585a74e48593b16e1ca9b2Ingo Molnar mutex_unlock(&card->power_lock); 1591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 161512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwaistatic inline unsigned int snd_power_get_state(struct snd_card *card) 1621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return card->power_state; 1641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 166512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwaistatic inline void snd_power_change_state(struct snd_card *card, unsigned int state) 1671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->power_state = state; 1691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds wake_up(&card->power_sleep); 1701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 171d5750f67853350373fc1d5698c3a58ea16eddf4cHenrik Kretzschmar 172d5750f67853350373fc1d5698c3a58ea16eddf4cHenrik Kretzschmar/* init.c */ 173cbac4b0cb62d01cb0aaec7778410b8856f01186bTakashi Iwaiint snd_power_wait(struct snd_card *card, unsigned int power_state); 174d5750f67853350373fc1d5698c3a58ea16eddf4cHenrik Kretzschmar 1751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#else /* ! CONFIG_PM */ 1761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define snd_power_lock(card) do { (void)(card); } while (0) 1781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define snd_power_unlock(card) do { (void)(card); } while (0) 1796fdb94bd95dc7a2effcbffa7a1d9e792cade57b6Linus Torvaldsstatic inline int snd_power_wait(struct snd_card *card, unsigned int state) { return 0; } 1801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define snd_power_get_state(card) SNDRV_CTL_POWER_D0 1811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define snd_power_change_state(card, state) do { (void)(card); } while (0) 1821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif /* CONFIG_PM */ 1841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 185512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwaistruct snd_minor { 1862af677fc884fc6dc79e65c99050ea607ac8bab9bClemens Ladisch int type; /* SNDRV_DEVICE_TYPE_XXX */ 1876983b7240cd229787c3ee00e663ea94ea649d96aClemens Ladisch int card; /* card number */ 1881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int device; /* device number */ 18999ac48f54a91d02140c497edc31dc57d4bc5c85dArjan van de Ven const struct file_operations *f_ops; /* file operations */ 190f87135f56cb266e031f5ec081dfbde7e43f55e80Clemens Ladisch void *private_data; /* private data for f_ops->open */ 191d5750f67853350373fc1d5698c3a58ea16eddf4cHenrik Kretzschmar char name[0]; /* device name (keep at the end of 192d5750f67853350373fc1d5698c3a58ea16eddf4cHenrik Kretzschmar structure) */ 1931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 1941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* sound.c */ 1961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 197f1902860161ff212c515e7ea629e880fec856a37Clemens Ladischextern int snd_major; 1981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsextern int snd_ecards_limit; 1991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid snd_request_card(int card); 2011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2022af677fc884fc6dc79e65c99050ea607ac8bab9bClemens Ladischint snd_register_device(int type, struct snd_card *card, int dev, 20399ac48f54a91d02140c497edc31dc57d4bc5c85dArjan van de Ven const struct file_operations *f_ops, void *private_data, 204f87135f56cb266e031f5ec081dfbde7e43f55e80Clemens Ladisch const char *name); 205512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwaiint snd_unregister_device(int type, struct snd_card *card, int dev); 206f87135f56cb266e031f5ec081dfbde7e43f55e80Clemens Ladischvoid *snd_lookup_minor_data(unsigned int minor, int type); 2071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_SND_OSSEMUL 2092af677fc884fc6dc79e65c99050ea607ac8bab9bClemens Ladischint snd_register_oss_device(int type, struct snd_card *card, int dev, 21099ac48f54a91d02140c497edc31dc57d4bc5c85dArjan van de Ven const struct file_operations *f_ops, void *private_data, 211f87135f56cb266e031f5ec081dfbde7e43f55e80Clemens Ladisch const char *name); 212512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwaiint snd_unregister_oss_device(int type, struct snd_card *card, int dev); 213f87135f56cb266e031f5ec081dfbde7e43f55e80Clemens Ladischvoid *snd_lookup_oss_minor_data(unsigned int minor, int type); 2141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 2151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint snd_minor_info_init(void); 2171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint snd_minor_info_done(void); 2181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* sound_oss.c */ 2201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_SND_OSSEMUL 2221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint snd_minor_info_oss_init(void); 2231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint snd_minor_info_oss_done(void); 2241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#else 2251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define snd_minor_info_oss_init() /*NOP*/ 2261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define snd_minor_info_oss_done() /*NOP*/ 2271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 2281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* memory.c */ 2301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint copy_to_user_fromio(void __user *dst, const volatile void __iomem *src, size_t count); 2321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint copy_from_user_toio(volatile void __iomem *dst, const void __user *src, size_t count); 2331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* init.c */ 2351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsextern unsigned int snd_cards_lock; 237512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwaiextern struct snd_card *snd_cards[SNDRV_CARDS]; 2381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsextern rwlock_t snd_card_rwlock; 2391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#if defined(CONFIG_SND_MIXER_OSS) || defined(CONFIG_SND_MIXER_OSS_MODULE) 2401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define SND_MIXER_OSS_NOTIFY_REGISTER 0 2411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define SND_MIXER_OSS_NOTIFY_DISCONNECT 1 2421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define SND_MIXER_OSS_NOTIFY_FREE 2 243512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwaiextern int (*snd_mixer_oss_notify_callback)(struct snd_card *card, int cmd); 2441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 2451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 246512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwaistruct snd_card *snd_card_new(int idx, const char *id, 2471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct module *module, int extra_size); 248512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwaiint snd_card_disconnect(struct snd_card *card); 249512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwaiint snd_card_free(struct snd_card *card); 250512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwaiint snd_card_free_in_thread(struct snd_card *card); 251512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwaiint snd_card_register(struct snd_card *card); 2521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint snd_card_info_init(void); 2531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint snd_card_info_done(void); 254512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwaiint snd_component_add(struct snd_card *card, const char *component); 255512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwaiint snd_card_file_add(struct snd_card *card, struct file *file); 256512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwaiint snd_card_file_remove(struct snd_card *card, struct file *file); 2571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifndef snd_card_set_dev 2591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define snd_card_set_dev(card,devptr) ((card)->dev = (devptr)) 2601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 2611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* device.c */ 2631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 264512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwaiint snd_device_new(struct snd_card *card, snd_device_type_t type, 265512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwai void *device_data, struct snd_device_ops *ops); 266512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwaiint snd_device_register(struct snd_card *card, void *device_data); 267512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwaiint snd_device_register_all(struct snd_card *card); 268512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwaiint snd_device_disconnect(struct snd_card *card, void *device_data); 269512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwaiint snd_device_disconnect_all(struct snd_card *card); 270512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwaiint snd_device_free(struct snd_card *card, void *device_data); 271512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwaiint snd_device_free_all(struct snd_card *card, snd_device_cmd_t cmd); 2721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* isadma.c */ 2741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 275276bd31ce5af01350465861af7aa6a25864eb108Al Viro#ifdef CONFIG_ISA_DMA_API 2761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define DMA_MODE_NO_ENABLE 0x0100 2771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid snd_dma_program(unsigned long dma, unsigned long addr, unsigned int size, unsigned short mode); 2791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid snd_dma_disable(unsigned long dma); 2801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsunsigned int snd_dma_pointer(unsigned long dma, unsigned int size); 281276bd31ce5af01350465861af7aa6a25864eb108Al Viro#endif 2821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* misc.c */ 284b709e57440b9d5f38b8c73e1310127d51777bba0Takashi Iwaistruct resource; 285b1d5776d865951c213a1caaab5d8bf5de7615dbdTakashi Iwaivoid release_and_free_resource(struct resource *res); 2861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_SND_VERBOSE_PRINTK 2881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid snd_verbose_printk(const char *file, int line, const char *format, ...) 2891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds __attribute__ ((format (printf, 3, 4))); 2901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 2911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#if defined(CONFIG_SND_DEBUG) && defined(CONFIG_SND_VERBOSE_PRINTK) 2921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid snd_verbose_printd(const char *file, int line, const char *format, ...) 2931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds __attribute__ ((format (printf, 3, 4))); 2941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 2951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* --- */ 2971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_SND_VERBOSE_PRINTK 2991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 3001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * snd_printk - printk wrapper 3011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @fmt: format string 3021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 3031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Works like print() but prints the file and the line of the caller 3041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * when configured with CONFIG_SND_VERBOSE_PRINTK. 3051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 3061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define snd_printk(fmt, args...) \ 3071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds snd_verbose_printk(__FILE__, __LINE__, fmt ,##args) 3081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#else 3091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define snd_printk(fmt, args...) \ 3101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(fmt ,##args) 3111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 3121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_SND_DEBUG 3141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define __ASTRING__(x) #x 3161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_SND_VERBOSE_PRINTK 3181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 3191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * snd_printd - debug printk 3200863afb32b77fc89c7110b3d10fb048cb56bb1b5Martin Waitz * @fmt: format string 3211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 3221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Compiled only when Works like snd_printk() for debugging purpose. 3231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Ignored when CONFIG_SND_DEBUG is not set. 3241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 3251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define snd_printd(fmt, args...) \ 3261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds snd_verbose_printd(__FILE__, __LINE__, fmt ,##args) 3271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#else 3281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define snd_printd(fmt, args...) \ 3291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(fmt ,##args) 3301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 3311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 332d5750f67853350373fc1d5698c3a58ea16eddf4cHenrik Kretzschmar * snd_assert - run-time assertion macro 3331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @expr: expression 3341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 3351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This macro checks the expression in run-time and invokes the commands 3361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * given in the rest arguments if the assertion is failed. 3371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * When CONFIG_SND_DEBUG is not set, the expression is executed but 3381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * not checked. 3391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 3407c22f1aaa23370bf9ba2dd3abbccbed70dced216Takashi Iwai#define snd_assert(expr, args...) do { \ 3417c22f1aaa23370bf9ba2dd3abbccbed70dced216Takashi Iwai if (unlikely(!(expr))) { \ 3427c22f1aaa23370bf9ba2dd3abbccbed70dced216Takashi Iwai snd_printk(KERN_ERR "BUG? (%s)\n", __ASTRING__(expr)); \ 3437c22f1aaa23370bf9ba2dd3abbccbed70dced216Takashi Iwai dump_stack(); \ 3447c22f1aaa23370bf9ba2dd3abbccbed70dced216Takashi Iwai args; \ 3457c22f1aaa23370bf9ba2dd3abbccbed70dced216Takashi Iwai } \ 3461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} while (0) 3477c22f1aaa23370bf9ba2dd3abbccbed70dced216Takashi Iwai 3487c22f1aaa23370bf9ba2dd3abbccbed70dced216Takashi Iwai#define snd_BUG() do { \ 3497c22f1aaa23370bf9ba2dd3abbccbed70dced216Takashi Iwai snd_printk(KERN_ERR "BUG?\n"); \ 3507c22f1aaa23370bf9ba2dd3abbccbed70dced216Takashi Iwai dump_stack(); \ 3511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} while (0) 3521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#else /* !CONFIG_SND_DEBUG */ 3541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define snd_printd(fmt, args...) /* nothing */ 3561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define snd_assert(expr, args...) (void)(expr) 3577c22f1aaa23370bf9ba2dd3abbccbed70dced216Takashi Iwai#define snd_BUG() /* nothing */ 3581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif /* CONFIG_SND_DEBUG */ 3601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_SND_DEBUG_DETECT 3621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 3631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * snd_printdd - debug printk 3641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @format: format string 3651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 3661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Compiled only when Works like snd_printk() for debugging purpose. 3671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Ignored when CONFIG_SND_DEBUG_DETECT is not set. 3681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 3691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define snd_printdd(format, args...) snd_printk(format, ##args) 3701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#else 3711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define snd_printdd(format, args...) /* nothing */ 3721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 3731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define SNDRV_OSS_VERSION ((3<<16)|(8<<8)|(1<<4)|(0)) /* 3.8.1a */ 3761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* for easier backward-porting */ 3781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#if defined(CONFIG_GAMEPORT) || defined(CONFIG_GAMEPORT_MODULE) 3791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifndef gameport_set_dev_parent 3801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define gameport_set_dev_parent(gp,xdev) ((gp)->dev.parent = (xdev)) 3811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define gameport_set_port_data(gp,r) ((gp)->port_data = (r)) 3821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define gameport_get_port_data(gp) (gp)->port_data 3831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 3841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 3851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 386512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwai#include "typedefs.h" 387512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwai 3881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif /* __SOUND_CORE_H */ 389