X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=include%2Fsound%2Fcore.h;h=89e0ac17f44a1c461bd8b1cdc565f99b8eeb4217;hb=b2e75eff5e859d0c294e7405958362b26a423c6e;hp=144bdc2f217fab4aa814c2cdc5ee75d65c13af4a;hpb=1a60d4c5a0c4028559585a74e48593b16e1ca9b2;p=safe%2Fjmp%2Flinux-2.6 diff --git a/include/sound/core.h b/include/sound/core.h index 144bdc2..89e0ac1 100644 --- a/include/sound/core.h +++ b/include/sound/core.h @@ -3,7 +3,7 @@ /* * Main header file for the ALSA driver - * Copyright (c) 1994-2001 by Jaroslav Kysela + * Copyright (c) 1994-2001 by Jaroslav Kysela * * * This program is free software; you can redistribute it and/or modify @@ -22,19 +22,27 @@ * */ +#include #include /* wake_up() */ #include /* struct mutex */ #include /* struct rw_semaphore */ -#include /* struct workqueue_struct */ #include /* pm_message_t */ +#include +#include + +/* number of supported soundcards */ +#ifdef CONFIG_SND_DYNAMIC_MINORS +#define SNDRV_CARDS 32 +#else +#define SNDRV_CARDS 8 /* don't change - minor numbers */ +#endif + +#define CONFIG_SND_MAJOR 116 /* standard configuration */ /* forward declarations */ #ifdef CONFIG_PCI struct pci_dev; #endif -#ifdef CONFIG_SBUS -struct sbus_dev; -#endif /* device allocation stuff */ @@ -53,6 +61,7 @@ typedef int __bitwise snd_device_type_t; #define SNDRV_DEV_INFO ((__force snd_device_type_t) 0x1006) #define SNDRV_DEV_BUS ((__force snd_device_type_t) 0x1007) #define SNDRV_DEV_CODEC ((__force snd_device_type_t) 0x1008) +#define SNDRV_DEV_JACK ((__force snd_device_type_t) 0x1009) #define SNDRV_DEV_LOWLEVEL ((__force snd_device_type_t) 0x2000) typedef int __bitwise snd_device_state_t; @@ -71,7 +80,6 @@ struct snd_device_ops { int (*dev_free)(struct snd_device *dev); int (*dev_register)(struct snd_device *dev); int (*dev_disconnect)(struct snd_device *dev); - int (*dev_unregister)(struct snd_device *dev); }; struct snd_device { @@ -85,15 +93,6 @@ struct snd_device { #define snd_device(n) list_entry(n, struct snd_device, list) -/* monitor files for graceful shutdown (hotplug) */ - -struct snd_monitor_file { - struct file *file; - struct snd_monitor_file *next; -}; - -struct snd_shutdown_f_ops; /* define it later in init.c */ - /* main structure for soundcard */ struct snd_card { @@ -105,7 +104,7 @@ struct snd_card { char shortname[32]; /* short name of this soundcard */ char longname[80]; /* name of this soundcard */ char mixername[80]; /* mixer name */ - char components[80]; /* card components delimited with + char components[128]; /* card components delimited with space */ struct module *module; /* top-level module */ @@ -126,14 +125,17 @@ struct snd_card { struct snd_info_entry *proc_id; /* the card id */ struct proc_dir_entry *proc_root_link; /* number link to real id */ - struct snd_monitor_file *files; /* all files associated to this card */ + struct list_head files_list; /* all files associated to this card */ struct snd_shutdown_f_ops *s_f_ops; /* file operations in the shutdown state */ spinlock_t files_lock; /* lock the files for this card */ int shutdown; /* this card is going down */ + int free_on_last_close; /* free in context of file_release */ wait_queue_head_t shutdown_sleep; - struct work_struct free_workq; /* for free in workqueue */ - struct device *dev; + struct device *dev; /* device assigned to this card */ +#ifndef CONFIG_SYSFS_DEPRECATED + struct device *card_dev; /* cardX object for sysfs */ +#endif #ifdef CONFIG_PM unsigned int power_state; /* power state */ @@ -170,13 +172,13 @@ static inline void snd_power_change_state(struct snd_card *card, unsigned int st } /* init.c */ -int snd_power_wait(struct snd_card *card, unsigned int power_state, struct file *file); +int snd_power_wait(struct snd_card *card, unsigned int power_state); #else /* ! CONFIG_PM */ #define snd_power_lock(card) do { (void)(card); } while (0) #define snd_power_unlock(card) do { (void)(card); } while (0) -static inline int snd_power_wait(struct snd_card *card, unsigned int state, struct file *file) { return 0; } +static inline int snd_power_wait(struct snd_card *card, unsigned int state) { return 0; } #define snd_power_get_state(card) SNDRV_CTL_POWER_D0 #define snd_power_change_state(card, state) do { (void)(card); } while (0) @@ -186,28 +188,71 @@ struct snd_minor { int type; /* SNDRV_DEVICE_TYPE_XXX */ int card; /* card number */ int device; /* device number */ - struct file_operations *f_ops; /* file operations */ + const struct file_operations *f_ops; /* file operations */ void *private_data; /* private data for f_ops->open */ - char name[0]; /* device name (keep at the end of - structure) */ + struct device *dev; /* device for sysfs */ }; +/* return a device pointer linked to each sound device as a parent */ +static inline struct device *snd_card_get_device_link(struct snd_card *card) +{ +#ifdef CONFIG_SYSFS_DEPRECATED + return card ? card->dev : NULL; +#else + return card ? card->card_dev : NULL; +#endif +} + /* sound.c */ extern int snd_major; extern int snd_ecards_limit; +extern struct class *sound_class; void snd_request_card(int card); -int snd_register_device(int type, struct snd_card *card, int dev, - struct file_operations *f_ops, void *private_data, - const char *name); +int snd_register_device_for_dev(int type, struct snd_card *card, + int dev, + const struct file_operations *f_ops, + void *private_data, + const char *name, + struct device *device); + +/** + * snd_register_device - Register the ALSA device file for the card + * @type: the device type, SNDRV_DEVICE_TYPE_XXX + * @card: the card instance + * @dev: the device index + * @f_ops: the file operations + * @private_data: user pointer for f_ops->open() + * @name: the device file name + * + * Registers an ALSA device file for the given card. + * The operators have to be set in reg parameter. + * + * This function uses the card's device pointer to link to the + * correct &struct device. + * + * Returns zero if successful, or a negative error code on failure. + */ +static inline int snd_register_device(int type, struct snd_card *card, int dev, + const struct file_operations *f_ops, + void *private_data, + const char *name) +{ + return snd_register_device_for_dev(type, card, dev, f_ops, + private_data, name, + snd_card_get_device_link(card)); +} + int snd_unregister_device(int type, struct snd_card *card, int dev); void *snd_lookup_minor_data(unsigned int minor, int type); +int snd_add_device_sysfs_file(int type, struct snd_card *card, int dev, + struct device_attribute *attr); #ifdef CONFIG_SND_OSSEMUL int snd_register_oss_device(int type, struct snd_card *card, int dev, - struct file_operations *f_ops, void *private_data, + const struct file_operations *f_ops, void *private_data, const char *name); int snd_unregister_oss_device(int type, struct snd_card *card, int dev); void *snd_lookup_oss_minor_data(unsigned int minor, int type); @@ -222,8 +267,8 @@ int snd_minor_info_done(void); int snd_minor_info_oss_init(void); int snd_minor_info_oss_done(void); #else -#define snd_minor_info_oss_init() /*NOP*/ -#define snd_minor_info_oss_done() /*NOP*/ +static inline int snd_minor_info_oss_init(void) { return 0; } +static inline int snd_minor_info_oss_done(void) { return 0; } #endif /* memory.c */ @@ -233,9 +278,8 @@ int copy_from_user_toio(volatile void __iomem *dst, const void __user *src, size /* init.c */ -extern unsigned int snd_cards_lock; extern struct snd_card *snd_cards[SNDRV_CARDS]; -extern rwlock_t snd_card_rwlock; +int snd_card_locked(int card); #if defined(CONFIG_SND_MIXER_OSS) || defined(CONFIG_SND_MIXER_OSS_MODULE) #define SND_MIXER_OSS_NOTIFY_REGISTER 0 #define SND_MIXER_OSS_NOTIFY_DISCONNECT 1 @@ -243,11 +287,14 @@ extern rwlock_t snd_card_rwlock; extern int (*snd_mixer_oss_notify_callback)(struct snd_card *card, int cmd); #endif -struct snd_card *snd_card_new(int idx, const char *id, - struct module *module, int extra_size); +int snd_card_create(int idx, const char *id, + struct module *module, int extra_size, + struct snd_card **card_ret); + int snd_card_disconnect(struct snd_card *card); int snd_card_free(struct snd_card *card); -int snd_card_free_in_thread(struct snd_card *card); +int snd_card_free_when_closed(struct snd_card *card); +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); int snd_card_info_done(void); @@ -255,9 +302,7 @@ int snd_component_add(struct snd_card *card, const char *component); int snd_card_file_add(struct snd_card *card, struct file *file); int snd_card_file_remove(struct snd_card *card, struct file *file); -#ifndef snd_card_set_dev -#define snd_card_set_dev(card,devptr) ((card)->dev = (devptr)) -#endif +#define snd_card_set_dev(card, devptr) ((card)->dev = (devptr)) /* device.c */ @@ -284,91 +329,87 @@ unsigned int snd_dma_pointer(unsigned long dma, unsigned int size); struct resource; void release_and_free_resource(struct resource *res); -#ifdef CONFIG_SND_VERBOSE_PRINTK -void snd_verbose_printk(const char *file, int line, const char *format, ...) - __attribute__ ((format (printf, 3, 4))); -#endif -#if defined(CONFIG_SND_DEBUG) && defined(CONFIG_SND_VERBOSE_PRINTK) -void snd_verbose_printd(const char *file, int line, const char *format, ...) - __attribute__ ((format (printf, 3, 4))); -#endif - /* --- */ -#ifdef CONFIG_SND_VERBOSE_PRINTK +#if defined(CONFIG_SND_DEBUG) || defined(CONFIG_SND_VERBOSE_PRINTK) +void __snd_printk(unsigned int level, const char *file, int line, + const char *format, ...) + __attribute__ ((format (printf, 4, 5))); +#else +#define __snd_printk(level, file, line, format, args...) \ + printk(format, ##args) +#endif + /** * snd_printk - printk wrapper * @fmt: format string * - * Works like print() but prints the file and the line of the caller + * Works like printk() but prints the file and the line of the caller * when configured with CONFIG_SND_VERBOSE_PRINTK. */ #define snd_printk(fmt, args...) \ - snd_verbose_printk(__FILE__, __LINE__, fmt ,##args) -#else -#define snd_printk(fmt, args...) \ - printk(fmt ,##args) -#endif + __snd_printk(0, __FILE__, __LINE__, fmt, ##args) #ifdef CONFIG_SND_DEBUG - -#define __ASTRING__(x) #x - -#ifdef CONFIG_SND_VERBOSE_PRINTK /** * snd_printd - debug printk * @fmt: format string * - * Compiled only when Works like snd_printk() for debugging purpose. + * Works like snd_printk() for debugging purposes. * Ignored when CONFIG_SND_DEBUG is not set. */ #define snd_printd(fmt, args...) \ - snd_verbose_printd(__FILE__, __LINE__, fmt ,##args) -#else -#define snd_printd(fmt, args...) \ - printk(fmt ,##args) -#endif + __snd_printk(1, __FILE__, __LINE__, fmt, ##args) + /** - * snd_assert - run-time assertion macro - * @expr: expression + * snd_BUG - give a BUG warning message and stack trace * - * This macro checks the expression in run-time and invokes the commands - * given in the rest arguments if the assertion is failed. - * When CONFIG_SND_DEBUG is not set, the expression is executed but - * not checked. + * Calls WARN() if CONFIG_SND_DEBUG is set. + * Ignored when CONFIG_SND_DEBUG is not set. */ -#define snd_assert(expr, args...) do { \ - if (unlikely(!(expr))) { \ - snd_printk(KERN_ERR "BUG? (%s)\n", __ASTRING__(expr)); \ - dump_stack(); \ - args; \ - } \ -} while (0) - -#define snd_BUG() do { \ - snd_printk(KERN_ERR "BUG?\n"); \ - dump_stack(); \ -} while (0) +#define snd_BUG() WARN(1, "BUG?\n") + +/** + * snd_BUG_ON - debugging check macro + * @cond: condition to evaluate + * + * When CONFIG_SND_DEBUG is set, this macro evaluates the given condition, + * and call WARN() and returns the value if it's non-zero. + * + * When CONFIG_SND_DEBUG is not set, this just returns zero, and the given + * condition is ignored. + * + * NOTE: the argument won't be evaluated at all when CONFIG_SND_DEBUG=n. + * Thus, don't put any statement that influences on the code behavior, + * such as pre/post increment, to the argument of this macro. + * If you want to evaluate and give a warning, use standard WARN_ON(). + */ +#define snd_BUG_ON(cond) WARN((cond), "BUG? (%s)\n", __stringify(cond)) #else /* !CONFIG_SND_DEBUG */ -#define snd_printd(fmt, args...) /* nothing */ -#define snd_assert(expr, args...) (void)(expr) -#define snd_BUG() /* nothing */ +#define snd_printd(fmt, args...) do { } while (0) +#define snd_BUG() do { } while (0) +static inline int __snd_bug_on(int cond) +{ + return 0; +} +#define snd_BUG_ON(cond) __snd_bug_on(0 && (cond)) /* always false */ #endif /* CONFIG_SND_DEBUG */ -#ifdef CONFIG_SND_DEBUG_DETECT +#ifdef CONFIG_SND_DEBUG_VERBOSE /** * snd_printdd - debug printk * @format: format string * - * Compiled only when Works like snd_printk() for debugging purpose. - * Ignored when CONFIG_SND_DEBUG_DETECT is not set. + * Works like snd_printk() for debugging purposes. + * Ignored when CONFIG_SND_DEBUG_VERBOSE is not set. */ -#define snd_printdd(format, args...) snd_printk(format, ##args) +#define snd_printdd(format, args...) \ + __snd_printk(2, __FILE__, __LINE__, format, ##args) #else -#define snd_printdd(format, args...) /* nothing */ +#define snd_printdd(format, args...) do { } while (0) #endif @@ -376,13 +417,49 @@ void snd_verbose_printd(const char *file, int line, const char *format, ...) /* for easier backward-porting */ #if defined(CONFIG_GAMEPORT) || defined(CONFIG_GAMEPORT_MODULE) -#ifndef gameport_set_dev_parent #define gameport_set_dev_parent(gp,xdev) ((gp)->dev.parent = (xdev)) #define gameport_set_port_data(gp,r) ((gp)->port_data = (r)) #define gameport_get_port_data(gp) (gp)->port_data #endif + +/* PCI quirk list helper */ +struct snd_pci_quirk { + unsigned short subvendor; /* PCI subvendor ID */ + unsigned short subdevice; /* PCI subdevice ID */ + unsigned short subdevice_mask; /* bitmask to match */ + int value; /* value */ +#ifdef CONFIG_SND_DEBUG_VERBOSE + const char *name; /* name of the device (optional) */ +#endif +}; + +#define _SND_PCI_QUIRK_ID_MASK(vend, mask, dev) \ + .subvendor = (vend), .subdevice = (dev), .subdevice_mask = (mask) +#define _SND_PCI_QUIRK_ID(vend, dev) \ + _SND_PCI_QUIRK_ID_MASK(vend, 0xffff, dev) +#define SND_PCI_QUIRK_ID(vend,dev) {_SND_PCI_QUIRK_ID(vend, dev)} +#ifdef CONFIG_SND_DEBUG_VERBOSE +#define SND_PCI_QUIRK(vend,dev,xname,val) \ + {_SND_PCI_QUIRK_ID(vend, dev), .value = (val), .name = (xname)} +#define SND_PCI_QUIRK_VENDOR(vend, xname, val) \ + {_SND_PCI_QUIRK_ID_MASK(vend, 0, 0), .value = (val), .name = (xname)} +#define SND_PCI_QUIRK_MASK(vend, mask, dev, xname, val) \ + {_SND_PCI_QUIRK_ID_MASK(vend, mask, dev), \ + .value = (val), .name = (xname)} +#else +#define SND_PCI_QUIRK(vend,dev,xname,val) \ + {_SND_PCI_QUIRK_ID(vend, dev), .value = (val)} +#define SND_PCI_QUIRK_MASK(vend, mask, dev, xname, val) \ + {_SND_PCI_QUIRK_ID_MASK(vend, mask, dev), .value = (val)} +#define SND_PCI_QUIRK_VENDOR(vend, xname, val) \ + {_SND_PCI_QUIRK_ID_MASK(vend, 0, 0), .value = (val)} #endif -#include "typedefs.h" +const struct snd_pci_quirk * +snd_pci_quirk_lookup(struct pci_dev *pci, const struct snd_pci_quirk *list); + +const struct snd_pci_quirk * +snd_pci_quirk_lookup_id(u16 vendor, u16 device, + const struct snd_pci_quirk *list); #endif /* __SOUND_CORE_H */