diff options
Diffstat (limited to 'include/sound/core.h')
| -rw-r--r-- | include/sound/core.h | 99 |
1 files changed, 23 insertions, 76 deletions
diff --git a/include/sound/core.h b/include/sound/core.h index b7e9b58d3c78..64327e971122 100644 --- a/include/sound/core.h +++ b/include/sound/core.h @@ -14,6 +14,7 @@ #include <linux/pm.h> /* pm_message_t */ #include <linux/stringify.h> #include <linux/printk.h> +#include <linux/xarray.h> /* number of supported soundcards */ #ifdef CONFIG_SND_DYNAMIC_MINORS @@ -95,14 +96,19 @@ struct snd_card { private data */ struct list_head devices; /* devices */ - struct device ctl_dev; /* control device */ + struct device *ctl_dev; /* control device */ unsigned int last_numid; /* last used numeric ID */ - struct rw_semaphore controls_rwsem; /* controls list lock */ - rwlock_t ctl_files_rwlock; /* ctl_files list lock */ + struct rw_semaphore controls_rwsem; /* controls lock (list and values) */ + rwlock_t controls_rwlock; /* lock for lookup and ctl_files list */ int controls_count; /* count of all controls */ size_t user_ctl_alloc_size; // current memory allocation by user controls. struct list_head controls; /* all controls for this card */ struct list_head ctl_files; /* active control files */ +#ifdef CONFIG_SND_CTL_FAST_LOOKUP + struct xarray ctl_numids; /* hash table for numids */ + struct xarray ctl_hash; /* hash table for ctl id matching */ + bool ctl_hash_collision; /* ctl_hash collision seen? */ +#endif struct snd_info_entry *proc_root; /* root for soundcard specific files */ struct proc_dir_entry *proc_root_link; /* number link to real id */ @@ -226,14 +232,14 @@ static inline struct device *snd_card_get_device_link(struct snd_card *card) extern int snd_major; extern int snd_ecards_limit; -extern struct class *sound_class; +extern const struct class sound_class; #ifdef CONFIG_SND_DEBUG extern struct dentry *sound_debugfs_root; #endif void snd_request_card(int card); -void snd_device_initialize(struct device *dev, struct snd_card *card); +int snd_device_alloc(struct device **dev_p, struct snd_card *card); int snd_register_device(int type, struct snd_card *card, int dev, const struct file_operations *f_ops, @@ -280,10 +286,11 @@ int snd_devm_card_new(struct device *parent, int idx, const char *xid, struct module *module, size_t extra_size, struct snd_card **card_ret); -int snd_card_disconnect(struct snd_card *card); +void snd_card_disconnect(struct snd_card *card); void snd_card_disconnect_sync(struct snd_card *card); -int snd_card_free(struct snd_card *card); -int snd_card_free_when_closed(struct snd_card *card); +void snd_card_free(struct snd_card *card); +void snd_card_free_when_closed(struct snd_card *card); +int snd_card_free_on_error(struct device *dev, int ret); void snd_card_set_id(struct snd_card *card, const char *id); int snd_card_register(struct snd_card *card); int snd_card_info_init(void); @@ -319,7 +326,6 @@ void snd_device_disconnect(struct snd_card *card, void *device_data); void snd_device_disconnect_all(struct snd_card *card); void snd_device_free(struct snd_card *card, void *device_data); void snd_device_free_all(struct snd_card *card); -int snd_device_get_state(struct snd_card *card, void *device_data); /* isadma.c */ @@ -338,46 +344,8 @@ void release_and_free_resource(struct resource *res); /* --- */ -/* sound printk debug levels */ -enum { - SND_PR_ALWAYS, - SND_PR_DEBUG, - SND_PR_VERBOSE, -}; - -#if defined(CONFIG_SND_DEBUG) || defined(CONFIG_SND_VERBOSE_PRINTK) -__printf(4, 5) -void __snd_printk(unsigned int level, const char *file, int line, - const char *format, ...); -#else -#define __snd_printk(level, file, line, format, ...) \ - printk(format, ##__VA_ARGS__) -#endif - -/** - * snd_printk - printk wrapper - * @fmt: format string - * - * Works like printk() but prints the file and the line of the caller - * when configured with CONFIG_SND_VERBOSE_PRINTK. - */ -#define snd_printk(fmt, ...) \ - __snd_printk(0, __FILE__, __LINE__, fmt, ##__VA_ARGS__) - #ifdef CONFIG_SND_DEBUG /** - * snd_printd - debug printk - * @fmt: format string - * - * Works like snd_printk() for debugging purposes. - * Ignored when CONFIG_SND_DEBUG is not set. - */ -#define snd_printd(fmt, ...) \ - __snd_printk(1, __FILE__, __LINE__, fmt, ##__VA_ARGS__) -#define _snd_printd(level, fmt, ...) \ - __snd_printk(level, __FILE__, __LINE__, fmt, ##__VA_ARGS__) - -/** * snd_BUG - give a BUG warning message and stack trace * * Calls WARN() if CONFIG_SND_DEBUG is set. @@ -386,12 +354,6 @@ void __snd_printk(unsigned int level, const char *file, int line, #define snd_BUG() WARN(1, "BUG?\n") /** - * snd_printd_ratelimit - Suppress high rates of output when - * CONFIG_SND_DEBUG is enabled. - */ -#define snd_printd_ratelimit() printk_ratelimit() - -/** * snd_BUG_ON - debugging check macro * @cond: condition to evaluate * @@ -402,11 +364,6 @@ void __snd_printk(unsigned int level, const char *file, int line, #else /* !CONFIG_SND_DEBUG */ -__printf(1, 2) -static inline void snd_printd(const char *format, ...) {} -__printf(2, 3) -static inline void _snd_printd(int level, const char *format, ...) {} - #define snd_BUG() do { } while (0) #define snd_BUG_ON(condition) ({ \ @@ -414,26 +371,8 @@ static inline void _snd_printd(int level, const char *format, ...) {} unlikely(__ret_warn_on); \ }) -static inline bool snd_printd_ratelimit(void) { return false; } - #endif /* CONFIG_SND_DEBUG */ -#ifdef CONFIG_SND_DEBUG_VERBOSE -/** - * snd_printdd - debug printk - * @format: format string - * - * Works like snd_printk() for debugging purposes. - * Ignored when CONFIG_SND_DEBUG_VERBOSE is not set. - */ -#define snd_printdd(format, ...) \ - __snd_printk(2, __FILE__, __LINE__, format, ##__VA_ARGS__) -#else -__printf(1, 2) -static inline void snd_printdd(const char *format, ...) {} -#endif - - #define SNDRV_OSS_VERSION ((3<<16)|(8<<8)|(1<<4)|(0)) /* 3.8.1a */ /* for easier backward-porting */ @@ -500,4 +439,12 @@ snd_pci_quirk_lookup_id(u16 vendor, u16 device, } #endif +/* async signal helpers */ +struct snd_fasync; + +int snd_fasync_helper(int fd, struct file *file, int on, + struct snd_fasync **fasyncp); +void snd_kill_fasync(struct snd_fasync *fasync, int signal, int poll); +void snd_fasync_free(struct snd_fasync *fasync); + #endif /* __SOUND_CORE_H */ |