core.h revision 118dd6bfe7e0cddc8ab417ead19cc76000e92773
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 6c1017a4cdb68ae5368fbc9ee42c77f1f5dca8916Jaroslav Kysela * Copyright (c) 1994-2001 by Jaroslav Kysela <perex@perex.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 259004acc70e8c49c50c4c7b652f906f1e0ed5709dTakashi Iwai#include <linux/module.h> 261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/sched.h> /* wake_up() */ 271a60d4c5a0c4028559585a74e48593b16e1ca9b2Ingo Molnar#include <linux/mutex.h> /* struct mutex */ 281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/rwsem.h> /* struct rw_semaphore */ 291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/pm.h> /* pm_message_t */ 309d19f48cfe2570562c2c6226780a7ca627b0f1f1Takashi Iwai#include <linux/device.h> 315ef03460a6ffc1d3ee6b6f2abc6765d3e224cf89Takashi Iwai#include <linux/stringify.h> 321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 339004acc70e8c49c50c4c7b652f906f1e0ed5709dTakashi Iwai/* number of supported soundcards */ 349004acc70e8c49c50c4c7b652f906f1e0ed5709dTakashi Iwai#ifdef CONFIG_SND_DYNAMIC_MINORS 359004acc70e8c49c50c4c7b652f906f1e0ed5709dTakashi Iwai#define SNDRV_CARDS 32 369004acc70e8c49c50c4c7b652f906f1e0ed5709dTakashi Iwai#else 379004acc70e8c49c50c4c7b652f906f1e0ed5709dTakashi Iwai#define SNDRV_CARDS 8 /* don't change - minor numbers */ 389004acc70e8c49c50c4c7b652f906f1e0ed5709dTakashi Iwai#endif 399004acc70e8c49c50c4c7b652f906f1e0ed5709dTakashi Iwai 409004acc70e8c49c50c4c7b652f906f1e0ed5709dTakashi Iwai#define CONFIG_SND_MAJOR 116 /* standard configuration */ 419004acc70e8c49c50c4c7b652f906f1e0ed5709dTakashi Iwai 421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* forward declarations */ 431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_PCI 441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct pci_dev; 451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* device allocation stuff */ 481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define SNDRV_DEV_TYPE_RANGE_SIZE 0x1000 501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 51512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwaitypedef int __bitwise snd_device_type_t; 52512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwai#define SNDRV_DEV_TOPLEVEL ((__force snd_device_type_t) 0) 53512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwai#define SNDRV_DEV_CONTROL ((__force snd_device_type_t) 1) 54512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwai#define SNDRV_DEV_LOWLEVEL_PRE ((__force snd_device_type_t) 2) 55512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwai#define SNDRV_DEV_LOWLEVEL_NORMAL ((__force snd_device_type_t) 0x1000) 56512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwai#define SNDRV_DEV_PCM ((__force snd_device_type_t) 0x1001) 57512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwai#define SNDRV_DEV_RAWMIDI ((__force snd_device_type_t) 0x1002) 58512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwai#define SNDRV_DEV_TIMER ((__force snd_device_type_t) 0x1003) 59512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwai#define SNDRV_DEV_SEQUENCER ((__force snd_device_type_t) 0x1004) 60512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwai#define SNDRV_DEV_HWDEP ((__force snd_device_type_t) 0x1005) 61512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwai#define SNDRV_DEV_INFO ((__force snd_device_type_t) 0x1006) 62512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwai#define SNDRV_DEV_BUS ((__force snd_device_type_t) 0x1007) 63512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwai#define SNDRV_DEV_CODEC ((__force snd_device_type_t) 0x1008) 64e76d8ceaaff9d7fc1ba2b1963a9f34151832223bMark Brown#define SNDRV_DEV_JACK ((__force snd_device_type_t) 0x1009) 65512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwai#define SNDRV_DEV_LOWLEVEL ((__force snd_device_type_t) 0x2000) 66512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwai 67512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwaitypedef int __bitwise snd_device_state_t; 68512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwai#define SNDRV_DEV_BUILD ((__force snd_device_state_t) 0) 69512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwai#define SNDRV_DEV_REGISTERED ((__force snd_device_state_t) 1) 70512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwai#define SNDRV_DEV_DISCONNECTED ((__force snd_device_state_t) 2) 71512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwai 72512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwaitypedef int __bitwise snd_device_cmd_t; 73512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwai#define SNDRV_DEV_CMD_PRE ((__force snd_device_cmd_t) 0) 74512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwai#define SNDRV_DEV_CMD_NORMAL ((__force snd_device_cmd_t) 1) 75512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwai#define SNDRV_DEV_CMD_POST ((__force snd_device_cmd_t) 2) 76512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwai 77512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwaistruct snd_device; 78512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwai 79512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwaistruct snd_device_ops { 80512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwai int (*dev_free)(struct snd_device *dev); 81512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwai int (*dev_register)(struct snd_device *dev); 82512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwai int (*dev_disconnect)(struct snd_device *dev); 83512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwai}; 84512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwai 85512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwaistruct snd_device { 861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct list_head list; /* list of registered devices */ 87512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwai struct snd_card *card; /* card which holds this device */ 881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds snd_device_state_t state; /* state of the device */ 891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds snd_device_type_t type; /* device type */ 901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void *device_data; /* device structure */ 91512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwai struct snd_device_ops *ops; /* operations */ 921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 94512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwai#define snd_device(n) list_entry(n, struct snd_device, list) 951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* monitor files for graceful shutdown (hotplug) */ 971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct snd_monitor_file { 991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct file *file; 100a9edfc60227a1dc5c741666ff252a6055b73b184Karsten Wiese const struct file_operations *disconnected_f_op; 101118dd6bfe7e0cddc8ab417ead19cc76000e92773Takashi Iwai struct list_head shutdown_list; /* still need to shutdown */ 102118dd6bfe7e0cddc8ab417ead19cc76000e92773Takashi Iwai struct list_head list; /* link of monitor files */ 1031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 1041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* main structure for soundcard */ 1061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 107512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwaistruct snd_card { 108d5750f67853350373fc1d5698c3a58ea16eddf4cHenrik Kretzschmar int number; /* number of soundcard (index to 109d5750f67853350373fc1d5698c3a58ea16eddf4cHenrik Kretzschmar snd_cards) */ 1101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char id[16]; /* id string of this card */ 1121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char driver[16]; /* driver name */ 1131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char shortname[32]; /* short name of this soundcard */ 1141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char longname[80]; /* name of this soundcard */ 1151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char mixername[80]; /* mixer name */ 116ff33f2303b0ea8e5ac15af91de8d8538a5d58db1Takashi Iwai char components[128]; /* card components delimited with 117d5750f67853350373fc1d5698c3a58ea16eddf4cHenrik Kretzschmar space */ 1181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct module *module; /* top-level module */ 1191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void *private_data; /* private data for soundcard */ 121512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwai void (*private_free) (struct snd_card *card); /* callback for freeing of 122d5750f67853350373fc1d5698c3a58ea16eddf4cHenrik Kretzschmar private data */ 1231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct list_head devices; /* devices */ 1241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int last_numid; /* last used numeric ID */ 1261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct rw_semaphore controls_rwsem; /* controls list lock */ 1271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rwlock_t ctl_files_rwlock; /* ctl_files list lock */ 1281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int controls_count; /* count of all controls */ 1291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int user_ctl_count; /* count of all user controls */ 1301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct list_head controls; /* all controls for this card */ 1311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct list_head ctl_files; /* active control files */ 1321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 133512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwai struct snd_info_entry *proc_root; /* root for soundcard specific files */ 134512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwai struct snd_info_entry *proc_id; /* the card id */ 1351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct proc_dir_entry *proc_root_link; /* number link to real id */ 1361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 137118dd6bfe7e0cddc8ab417ead19cc76000e92773Takashi Iwai struct list_head files_list; /* all files associated to this card */ 138d5750f67853350373fc1d5698c3a58ea16eddf4cHenrik Kretzschmar struct snd_shutdown_f_ops *s_f_ops; /* file operations in the shutdown 139d5750f67853350373fc1d5698c3a58ea16eddf4cHenrik Kretzschmar state */ 1401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds spinlock_t files_lock; /* lock the files for this card */ 1411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int shutdown; /* this card is going down */ 142c461482c8072bb073e6146db320d3da85cdc89adTakashi Iwai int free_on_last_close; /* free in context of file_release */ 1431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds wait_queue_head_t shutdown_sleep; 1447d2aae1e88660cf09be913e9754e45189dc33412Takashi Iwai struct device *dev; /* device assigned to this card */ 1457d2aae1e88660cf09be913e9754e45189dc33412Takashi Iwai#ifndef CONFIG_SYSFS_DEPRECATED 1467d2aae1e88660cf09be913e9754e45189dc33412Takashi Iwai struct device *card_dev; /* cardX object for sysfs */ 1477d2aae1e88660cf09be913e9754e45189dc33412Takashi Iwai#endif 1481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_PM 1501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int power_state; /* power state */ 1511a60d4c5a0c4028559585a74e48593b16e1ca9b2Ingo Molnar struct mutex power_lock; /* power lock */ 1521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds wait_queue_head_t power_sleep; 1531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 1541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#if defined(CONFIG_SND_MIXER_OSS) || defined(CONFIG_SND_MIXER_OSS_MODULE) 156512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwai struct snd_mixer_oss *mixer_oss; 1571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int mixer_oss_change_count; 1581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 1591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 1601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_PM 162512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwaistatic inline void snd_power_lock(struct snd_card *card) 1631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1641a60d4c5a0c4028559585a74e48593b16e1ca9b2Ingo Molnar mutex_lock(&card->power_lock); 1651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 167512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwaistatic inline void snd_power_unlock(struct snd_card *card) 1681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1691a60d4c5a0c4028559585a74e48593b16e1ca9b2Ingo Molnar mutex_unlock(&card->power_lock); 1701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 172512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwaistatic inline unsigned int snd_power_get_state(struct snd_card *card) 1731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return card->power_state; 1751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 177512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwaistatic inline void snd_power_change_state(struct snd_card *card, unsigned int state) 1781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds card->power_state = state; 1801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds wake_up(&card->power_sleep); 1811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 182d5750f67853350373fc1d5698c3a58ea16eddf4cHenrik Kretzschmar 183d5750f67853350373fc1d5698c3a58ea16eddf4cHenrik Kretzschmar/* init.c */ 184cbac4b0cb62d01cb0aaec7778410b8856f01186bTakashi Iwaiint snd_power_wait(struct snd_card *card, unsigned int power_state); 185d5750f67853350373fc1d5698c3a58ea16eddf4cHenrik Kretzschmar 1861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#else /* ! CONFIG_PM */ 1871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define snd_power_lock(card) do { (void)(card); } while (0) 1891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define snd_power_unlock(card) do { (void)(card); } while (0) 1906fdb94bd95dc7a2effcbffa7a1d9e792cade57b6Linus Torvaldsstatic inline int snd_power_wait(struct snd_card *card, unsigned int state) { return 0; } 1911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define snd_power_get_state(card) SNDRV_CTL_POWER_D0 1921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define snd_power_change_state(card, state) do { (void)(card); } while (0) 1931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif /* CONFIG_PM */ 1951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 196512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwaistruct snd_minor { 1972af677fc884fc6dc79e65c99050ea607ac8bab9bClemens Ladisch int type; /* SNDRV_DEVICE_TYPE_XXX */ 1986983b7240cd229787c3ee00e663ea94ea649d96aClemens Ladisch int card; /* card number */ 1991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int device; /* device number */ 20099ac48f54a91d02140c497edc31dc57d4bc5c85dArjan van de Ven const struct file_operations *f_ops; /* file operations */ 201f87135f56cb266e031f5ec081dfbde7e43f55e80Clemens Ladisch void *private_data; /* private data for f_ops->open */ 202d80f19fab89cba8a6d16193154c8ff3edab00942Greg Kroah-Hartman struct device *dev; /* device for sysfs */ 2031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 2041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2057d2aae1e88660cf09be913e9754e45189dc33412Takashi Iwai/* return a device pointer linked to each sound device as a parent */ 2067d2aae1e88660cf09be913e9754e45189dc33412Takashi Iwaistatic inline struct device *snd_card_get_device_link(struct snd_card *card) 2077d2aae1e88660cf09be913e9754e45189dc33412Takashi Iwai{ 2087d2aae1e88660cf09be913e9754e45189dc33412Takashi Iwai#ifdef CONFIG_SYSFS_DEPRECATED 2097d2aae1e88660cf09be913e9754e45189dc33412Takashi Iwai return card ? card->dev : NULL; 2107d2aae1e88660cf09be913e9754e45189dc33412Takashi Iwai#else 2117d2aae1e88660cf09be913e9754e45189dc33412Takashi Iwai return card ? card->card_dev : NULL; 2127d2aae1e88660cf09be913e9754e45189dc33412Takashi Iwai#endif 2137d2aae1e88660cf09be913e9754e45189dc33412Takashi Iwai} 2147d2aae1e88660cf09be913e9754e45189dc33412Takashi Iwai 2151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* sound.c */ 2161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 217f1902860161ff212c515e7ea629e880fec856a37Clemens Ladischextern int snd_major; 2181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsextern int snd_ecards_limit; 219d80f19fab89cba8a6d16193154c8ff3edab00942Greg Kroah-Hartmanextern struct class *sound_class; 2201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid snd_request_card(int card); 2221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 22312b131c4cf3eb1dc8a60082a434b7b100774c2e7Johannes Bergint snd_register_device_for_dev(int type, struct snd_card *card, 22412b131c4cf3eb1dc8a60082a434b7b100774c2e7Johannes Berg int dev, 22512b131c4cf3eb1dc8a60082a434b7b100774c2e7Johannes Berg const struct file_operations *f_ops, 22612b131c4cf3eb1dc8a60082a434b7b100774c2e7Johannes Berg void *private_data, 22712b131c4cf3eb1dc8a60082a434b7b100774c2e7Johannes Berg const char *name, 22812b131c4cf3eb1dc8a60082a434b7b100774c2e7Johannes Berg struct device *device); 22912b131c4cf3eb1dc8a60082a434b7b100774c2e7Johannes Berg 23012b131c4cf3eb1dc8a60082a434b7b100774c2e7Johannes Berg/** 23112b131c4cf3eb1dc8a60082a434b7b100774c2e7Johannes Berg * snd_register_device - Register the ALSA device file for the card 23212b131c4cf3eb1dc8a60082a434b7b100774c2e7Johannes Berg * @type: the device type, SNDRV_DEVICE_TYPE_XXX 23312b131c4cf3eb1dc8a60082a434b7b100774c2e7Johannes Berg * @card: the card instance 23412b131c4cf3eb1dc8a60082a434b7b100774c2e7Johannes Berg * @dev: the device index 23512b131c4cf3eb1dc8a60082a434b7b100774c2e7Johannes Berg * @f_ops: the file operations 23612b131c4cf3eb1dc8a60082a434b7b100774c2e7Johannes Berg * @private_data: user pointer for f_ops->open() 23712b131c4cf3eb1dc8a60082a434b7b100774c2e7Johannes Berg * @name: the device file name 23812b131c4cf3eb1dc8a60082a434b7b100774c2e7Johannes Berg * 23912b131c4cf3eb1dc8a60082a434b7b100774c2e7Johannes Berg * Registers an ALSA device file for the given card. 24012b131c4cf3eb1dc8a60082a434b7b100774c2e7Johannes Berg * The operators have to be set in reg parameter. 24112b131c4cf3eb1dc8a60082a434b7b100774c2e7Johannes Berg * 24212b131c4cf3eb1dc8a60082a434b7b100774c2e7Johannes Berg * This function uses the card's device pointer to link to the 24312b131c4cf3eb1dc8a60082a434b7b100774c2e7Johannes Berg * correct &struct device. 24412b131c4cf3eb1dc8a60082a434b7b100774c2e7Johannes Berg * 24512b131c4cf3eb1dc8a60082a434b7b100774c2e7Johannes Berg * Returns zero if successful, or a negative error code on failure. 24612b131c4cf3eb1dc8a60082a434b7b100774c2e7Johannes Berg */ 24712b131c4cf3eb1dc8a60082a434b7b100774c2e7Johannes Bergstatic inline int snd_register_device(int type, struct snd_card *card, int dev, 24812b131c4cf3eb1dc8a60082a434b7b100774c2e7Johannes Berg const struct file_operations *f_ops, 24912b131c4cf3eb1dc8a60082a434b7b100774c2e7Johannes Berg void *private_data, 25012b131c4cf3eb1dc8a60082a434b7b100774c2e7Johannes Berg const char *name) 25112b131c4cf3eb1dc8a60082a434b7b100774c2e7Johannes Berg{ 25212b131c4cf3eb1dc8a60082a434b7b100774c2e7Johannes Berg return snd_register_device_for_dev(type, card, dev, f_ops, 25312b131c4cf3eb1dc8a60082a434b7b100774c2e7Johannes Berg private_data, name, 254c2902c8ae06762d941fab64198467f78cab6f8cdTakashi Iwai snd_card_get_device_link(card)); 25512b131c4cf3eb1dc8a60082a434b7b100774c2e7Johannes Berg} 25612b131c4cf3eb1dc8a60082a434b7b100774c2e7Johannes Berg 257512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwaiint snd_unregister_device(int type, struct snd_card *card, int dev); 258f87135f56cb266e031f5ec081dfbde7e43f55e80Clemens Ladischvoid *snd_lookup_minor_data(unsigned int minor, int type); 2599d19f48cfe2570562c2c6226780a7ca627b0f1f1Takashi Iwaiint snd_add_device_sysfs_file(int type, struct snd_card *card, int dev, 260d80f19fab89cba8a6d16193154c8ff3edab00942Greg Kroah-Hartman struct device_attribute *attr); 2611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_SND_OSSEMUL 2632af677fc884fc6dc79e65c99050ea607ac8bab9bClemens Ladischint snd_register_oss_device(int type, struct snd_card *card, int dev, 26499ac48f54a91d02140c497edc31dc57d4bc5c85dArjan van de Ven const struct file_operations *f_ops, void *private_data, 265f87135f56cb266e031f5ec081dfbde7e43f55e80Clemens Ladisch const char *name); 266512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwaiint snd_unregister_oss_device(int type, struct snd_card *card, int dev); 267f87135f56cb266e031f5ec081dfbde7e43f55e80Clemens Ladischvoid *snd_lookup_oss_minor_data(unsigned int minor, int type); 2681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 2691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint snd_minor_info_init(void); 2711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint snd_minor_info_done(void); 2721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* sound_oss.c */ 2741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_SND_OSSEMUL 2761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint snd_minor_info_oss_init(void); 2771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint snd_minor_info_oss_done(void); 2781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#else 279ad5fada51d33b408ad3d2d0848ef6744b5daf06fPavel Machekstatic inline int snd_minor_info_oss_init(void) { return 0; } 280ad5fada51d33b408ad3d2d0848ef6744b5daf06fPavel Machekstatic inline int snd_minor_info_oss_done(void) { return 0; } 2811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 2821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* memory.c */ 2841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint copy_to_user_fromio(void __user *dst, const volatile void __iomem *src, size_t count); 2861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint copy_from_user_toio(volatile void __iomem *dst, const void __user *src, size_t count); 2871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* init.c */ 2891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 290512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwaiextern struct snd_card *snd_cards[SNDRV_CARDS]; 291746df94898554b3d8e91d855e934852e626c701cTakashi Iwaiint snd_card_locked(int card); 2921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#if defined(CONFIG_SND_MIXER_OSS) || defined(CONFIG_SND_MIXER_OSS_MODULE) 2931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define SND_MIXER_OSS_NOTIFY_REGISTER 0 2941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define SND_MIXER_OSS_NOTIFY_DISCONNECT 1 2951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define SND_MIXER_OSS_NOTIFY_FREE 2 296512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwaiextern int (*snd_mixer_oss_notify_callback)(struct snd_card *card, int cmd); 2971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 2981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 299512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwaistruct snd_card *snd_card_new(int idx, const char *id, 3001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct module *module, int extra_size); 301512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwaiint snd_card_disconnect(struct snd_card *card); 302512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwaiint snd_card_free(struct snd_card *card); 303c461482c8072bb073e6146db320d3da85cdc89adTakashi Iwaiint snd_card_free_when_closed(struct snd_card *card); 304512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwaiint snd_card_register(struct snd_card *card); 3051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint snd_card_info_init(void); 3061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint snd_card_info_done(void); 307512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwaiint snd_component_add(struct snd_card *card, const char *component); 308512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwaiint snd_card_file_add(struct snd_card *card, struct file *file); 309512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwaiint snd_card_file_remove(struct snd_card *card, struct file *file); 3101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifndef snd_card_set_dev 312edab938e63e463da86e4aa7b94628ce8f2b8a137Pavel Machek#define snd_card_set_dev(card, devptr) ((card)->dev = (devptr)) 3131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 3141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* device.c */ 3161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 317512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwaiint snd_device_new(struct snd_card *card, snd_device_type_t type, 318512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwai void *device_data, struct snd_device_ops *ops); 319512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwaiint snd_device_register(struct snd_card *card, void *device_data); 320512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwaiint snd_device_register_all(struct snd_card *card); 321512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwaiint snd_device_disconnect(struct snd_card *card, void *device_data); 322512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwaiint snd_device_disconnect_all(struct snd_card *card); 323512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwaiint snd_device_free(struct snd_card *card, void *device_data); 324512bbd6a85230f16389f0dd51925472e72fc8a91Takashi Iwaiint snd_device_free_all(struct snd_card *card, snd_device_cmd_t cmd); 3251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* isadma.c */ 3271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 328276bd31ce5af01350465861af7aa6a25864eb108Al Viro#ifdef CONFIG_ISA_DMA_API 3291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define DMA_MODE_NO_ENABLE 0x0100 3301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid snd_dma_program(unsigned long dma, unsigned long addr, unsigned int size, unsigned short mode); 3321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid snd_dma_disable(unsigned long dma); 3331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsunsigned int snd_dma_pointer(unsigned long dma, unsigned int size); 334276bd31ce5af01350465861af7aa6a25864eb108Al Viro#endif 3351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* misc.c */ 337b709e57440b9d5f38b8c73e1310127d51777bba0Takashi Iwaistruct resource; 338b1d5776d865951c213a1caaab5d8bf5de7615dbdTakashi Iwaivoid release_and_free_resource(struct resource *res); 3391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_SND_VERBOSE_PRINTK 3411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid snd_verbose_printk(const char *file, int line, const char *format, ...) 3421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds __attribute__ ((format (printf, 3, 4))); 3431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 3441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#if defined(CONFIG_SND_DEBUG) && defined(CONFIG_SND_VERBOSE_PRINTK) 3451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsvoid snd_verbose_printd(const char *file, int line, const char *format, ...) 3461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds __attribute__ ((format (printf, 3, 4))); 3471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 3481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* --- */ 3501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_SND_VERBOSE_PRINTK 3521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 3531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * snd_printk - printk wrapper 3541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @fmt: format string 3551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 356f66fcedc84dd06d42a0dba3894d238498509e8b7Takashi Iwai * Works like printk() but prints the file and the line of the caller 3571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * when configured with CONFIG_SND_VERBOSE_PRINTK. 3581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 3591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define snd_printk(fmt, args...) \ 3601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds snd_verbose_printk(__FILE__, __LINE__, fmt ,##args) 3611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#else 3621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define snd_printk(fmt, args...) \ 3631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(fmt ,##args) 3641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 3651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_SND_DEBUG 3671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_SND_VERBOSE_PRINTK 3691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 3701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * snd_printd - debug printk 3710863afb32b77fc89c7110b3d10fb048cb56bb1b5Martin Waitz * @fmt: format string 3721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 373edab938e63e463da86e4aa7b94628ce8f2b8a137Pavel Machek * Works like snd_printk() for debugging purposes. 3741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Ignored when CONFIG_SND_DEBUG is not set. 3751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 3761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define snd_printd(fmt, args...) \ 3771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds snd_verbose_printd(__FILE__, __LINE__, fmt ,##args) 3781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#else 3791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define snd_printd(fmt, args...) \ 3801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(fmt ,##args) 3811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 3827c22f1aaa23370bf9ba2dd3abbccbed70dced216Takashi Iwai 383f66fcedc84dd06d42a0dba3894d238498509e8b7Takashi Iwai/** 384f66fcedc84dd06d42a0dba3894d238498509e8b7Takashi Iwai * snd_BUG - give a BUG warning message and stack trace 385f66fcedc84dd06d42a0dba3894d238498509e8b7Takashi Iwai * 386f66fcedc84dd06d42a0dba3894d238498509e8b7Takashi Iwai * Calls WARN() if CONFIG_SND_DEBUG is set. 387f66fcedc84dd06d42a0dba3894d238498509e8b7Takashi Iwai * Ignored when CONFIG_SND_DEBUG is not set. 388f66fcedc84dd06d42a0dba3894d238498509e8b7Takashi Iwai */ 389bdbecf50064b75ecce2e10ce2621de0d0fac7de6Takashi Iwai#define snd_BUG() WARN(1, "BUG?\n") 390f66fcedc84dd06d42a0dba3894d238498509e8b7Takashi Iwai 391f66fcedc84dd06d42a0dba3894d238498509e8b7Takashi Iwai/** 392f66fcedc84dd06d42a0dba3894d238498509e8b7Takashi Iwai * snd_BUG_ON - debugging check macro 393f66fcedc84dd06d42a0dba3894d238498509e8b7Takashi Iwai * @cond: condition to evaluate 394f66fcedc84dd06d42a0dba3894d238498509e8b7Takashi Iwai * 395f66fcedc84dd06d42a0dba3894d238498509e8b7Takashi Iwai * When CONFIG_SND_DEBUG is set, this macro evaluates the given condition, 396f66fcedc84dd06d42a0dba3894d238498509e8b7Takashi Iwai * and call WARN() and returns the value if it's non-zero. 397f66fcedc84dd06d42a0dba3894d238498509e8b7Takashi Iwai * 398f66fcedc84dd06d42a0dba3894d238498509e8b7Takashi Iwai * When CONFIG_SND_DEBUG is not set, this just returns zero, and the given 399f66fcedc84dd06d42a0dba3894d238498509e8b7Takashi Iwai * condition is ignored. 400f66fcedc84dd06d42a0dba3894d238498509e8b7Takashi Iwai * 401f66fcedc84dd06d42a0dba3894d238498509e8b7Takashi Iwai * NOTE: the argument won't be evaluated at all when CONFIG_SND_DEBUG=n. 402f66fcedc84dd06d42a0dba3894d238498509e8b7Takashi Iwai * Thus, don't put any statement that influences on the code behavior, 403f66fcedc84dd06d42a0dba3894d238498509e8b7Takashi Iwai * such as pre/post increment, to the argument of this macro. 404f66fcedc84dd06d42a0dba3894d238498509e8b7Takashi Iwai * If you want to evaluate and give a warning, use standard WARN_ON(). 405f66fcedc84dd06d42a0dba3894d238498509e8b7Takashi Iwai */ 4065ef03460a6ffc1d3ee6b6f2abc6765d3e224cf89Takashi Iwai#define snd_BUG_ON(cond) WARN((cond), "BUG? (%s)\n", __stringify(cond)) 4071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#else /* !CONFIG_SND_DEBUG */ 4091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 410fcef7836a31c6432b41a38867d413ed3d6aa8261Andrew Morton#define snd_printd(fmt, args...) do { } while (0) 411fcef7836a31c6432b41a38867d413ed3d6aa8261Andrew Morton#define snd_BUG() do { } while (0) 412945eed02cd619f525e097319cd3d18c58d01da87Takashi Iwaistatic inline int __snd_bug_on(int cond) 413fcef7836a31c6432b41a38867d413ed3d6aa8261Andrew Morton{ 414fcef7836a31c6432b41a38867d413ed3d6aa8261Andrew Morton return 0; 415fcef7836a31c6432b41a38867d413ed3d6aa8261Andrew Morton} 416945eed02cd619f525e097319cd3d18c58d01da87Takashi Iwai#define snd_BUG_ON(cond) __snd_bug_on(0 && (cond)) /* always false */ 4171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif /* CONFIG_SND_DEBUG */ 4191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 42062cf872a8eec1f11aacbec0ac3fe3698bfa9b403Takashi Iwai#ifdef CONFIG_SND_DEBUG_VERBOSE 4211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 4221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * snd_printdd - debug printk 4231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @format: format string 4241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 425edab938e63e463da86e4aa7b94628ce8f2b8a137Pavel Machek * Works like snd_printk() for debugging purposes. 42662cf872a8eec1f11aacbec0ac3fe3698bfa9b403Takashi Iwai * Ignored when CONFIG_SND_DEBUG_VERBOSE is not set. 4271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 4281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define snd_printdd(format, args...) snd_printk(format, ##args) 4291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#else 4301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define snd_printdd(format, args...) /* nothing */ 4311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 4321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define SNDRV_OSS_VERSION ((3<<16)|(8<<8)|(1<<4)|(0)) /* 3.8.1a */ 4351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* for easier backward-porting */ 4371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#if defined(CONFIG_GAMEPORT) || defined(CONFIG_GAMEPORT_MODULE) 4381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifndef gameport_set_dev_parent 4391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define gameport_set_dev_parent(gp,xdev) ((gp)->dev.parent = (xdev)) 4401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define gameport_set_port_data(gp,r) ((gp)->port_data = (r)) 4411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define gameport_get_port_data(gp) (gp)->port_data 4421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 4431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 4441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 445d9ea472c743ccd7344055cb118bc210befbd8007Takashi Iwai/* PCI quirk list helper */ 446d9ea472c743ccd7344055cb118bc210befbd8007Takashi Iwaistruct snd_pci_quirk { 447d9ea472c743ccd7344055cb118bc210befbd8007Takashi Iwai unsigned short subvendor; /* PCI subvendor ID */ 448d9ea472c743ccd7344055cb118bc210befbd8007Takashi Iwai unsigned short subdevice; /* PCI subdevice ID */ 449d9ea472c743ccd7344055cb118bc210befbd8007Takashi Iwai int value; /* value */ 45062cf872a8eec1f11aacbec0ac3fe3698bfa9b403Takashi Iwai#ifdef CONFIG_SND_DEBUG_VERBOSE 451d9ea472c743ccd7344055cb118bc210befbd8007Takashi Iwai const char *name; /* name of the device (optional) */ 452d9ea472c743ccd7344055cb118bc210befbd8007Takashi Iwai#endif 453d9ea472c743ccd7344055cb118bc210befbd8007Takashi Iwai}; 454d9ea472c743ccd7344055cb118bc210befbd8007Takashi Iwai 455d9ea472c743ccd7344055cb118bc210befbd8007Takashi Iwai#define _SND_PCI_QUIRK_ID(vend,dev) \ 456d9ea472c743ccd7344055cb118bc210befbd8007Takashi Iwai .subvendor = (vend), .subdevice = (dev) 457d9ea472c743ccd7344055cb118bc210befbd8007Takashi Iwai#define SND_PCI_QUIRK_ID(vend,dev) {_SND_PCI_QUIRK_ID(vend, dev)} 45862cf872a8eec1f11aacbec0ac3fe3698bfa9b403Takashi Iwai#ifdef CONFIG_SND_DEBUG_VERBOSE 459d9ea472c743ccd7344055cb118bc210befbd8007Takashi Iwai#define SND_PCI_QUIRK(vend,dev,xname,val) \ 460d9ea472c743ccd7344055cb118bc210befbd8007Takashi Iwai {_SND_PCI_QUIRK_ID(vend, dev), .value = (val), .name = (xname)} 461d9ea472c743ccd7344055cb118bc210befbd8007Takashi Iwai#else 462d9ea472c743ccd7344055cb118bc210befbd8007Takashi Iwai#define SND_PCI_QUIRK(vend,dev,xname,val) \ 463d9ea472c743ccd7344055cb118bc210befbd8007Takashi Iwai {_SND_PCI_QUIRK_ID(vend, dev), .value = (val)} 464d9ea472c743ccd7344055cb118bc210befbd8007Takashi Iwai#endif 465d9ea472c743ccd7344055cb118bc210befbd8007Takashi Iwai 466d9ea472c743ccd7344055cb118bc210befbd8007Takashi Iwaiconst struct snd_pci_quirk * 467d9ea472c743ccd7344055cb118bc210befbd8007Takashi Iwaisnd_pci_quirk_lookup(struct pci_dev *pci, const struct snd_pci_quirk *list); 468d9ea472c743ccd7344055cb118bc210befbd8007Takashi Iwai 469d9ea472c743ccd7344055cb118bc210befbd8007Takashi Iwai 4701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif /* __SOUND_CORE_H */ 471