[GitHub/mt8127/android_kernel_alcatel_ttab.git] / include / sound / core.h

#ifndef __SOUND_CORE_H
#define __SOUND_CORE_H

/*
 *  Main header file for the ALSA driver
 *  Copyright (c) 1994-2001 by Jaroslav Kysela <perex@perex.cz>
 *
 *
 *   This program is free software; you can redistribute it and/or modify
 *   it under the terms of the GNU General Public License as published by
 *   the Free Software Foundation; either version 2 of the License, or
 *   (at your option) any later version.
 *
 *   This program is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *   GNU General Public License for more details.
 *
 *   You should have received a copy of the GNU General Public License
 *   along with this program; if not, write to the Free Software
 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
 *
 */

#include <linux/module.h>
#include <linux/sched.h>		/* wake_up() */
#include <linux/mutex.h>		/* struct mutex */
#include <linux/rwsem.h>		/* struct rw_semaphore */
#include <linux/pm.h>			/* pm_message_t */
#include <linux/device.h>

/* 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 */

#define SNDRV_DEV_TYPE_RANGE_SIZE		0x1000

typedef int __bitwise snd_device_type_t;
#define	SNDRV_DEV_TOPLEVEL	((__force snd_device_type_t) 0)
#define	SNDRV_DEV_CONTROL	((__force snd_device_type_t) 1)
#define	SNDRV_DEV_LOWLEVEL_PRE	((__force snd_device_type_t) 2)
#define	SNDRV_DEV_LOWLEVEL_NORMAL ((__force snd_device_type_t) 0x1000)
#define	SNDRV_DEV_PCM		((__force snd_device_type_t) 0x1001)
#define	SNDRV_DEV_RAWMIDI	((__force snd_device_type_t) 0x1002)
#define	SNDRV_DEV_TIMER		((__force snd_device_type_t) 0x1003)
#define	SNDRV_DEV_SEQUENCER	((__force snd_device_type_t) 0x1004)
#define	SNDRV_DEV_HWDEP		((__force snd_device_type_t) 0x1005)
#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_LOWLEVEL	((__force snd_device_type_t) 0x2000)

typedef int __bitwise snd_device_state_t;
#define	SNDRV_DEV_BUILD		((__force snd_device_state_t) 0)
#define	SNDRV_DEV_REGISTERED	((__force snd_device_state_t) 1)
#define	SNDRV_DEV_DISCONNECTED	((__force snd_device_state_t) 2)

typedef int __bitwise snd_device_cmd_t;
#define	SNDRV_DEV_CMD_PRE	((__force snd_device_cmd_t) 0)
#define	SNDRV_DEV_CMD_NORMAL	((__force snd_device_cmd_t) 1)	
#define	SNDRV_DEV_CMD_POST	((__force snd_device_cmd_t) 2)

struct snd_device;

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);
};

struct snd_device {
	struct list_head list;		/* list of registered devices */
	struct snd_card *card;		/* card which holds this device */
	snd_device_state_t state;	/* state of the device */
	snd_device_type_t type;		/* device type */
	void *device_data;		/* device structure */
	struct snd_device_ops *ops;	/* operations */
};

#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;
	const struct file_operations *disconnected_f_op;
	struct list_head shutdown_list;
};

/* main structure for soundcard */

struct snd_card {
	int number;			/* number of soundcard (index to
								snd_cards) */

	char id[16];			/* id string of this card */
	char driver[16];		/* driver name */
	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
								space */
	struct module *module;		/* top-level module */

	void *private_data;		/* private data for soundcard */
	void (*private_free) (struct snd_card *card); /* callback for freeing of
								private data */
	struct list_head devices;	/* devices */

	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 */
	int controls_count;		/* count of all controls */
	int user_ctl_count;		/* count of all user controls */
	struct list_head controls;	/* all controls for this card */
	struct list_head ctl_files;	/* active control files */

	struct snd_info_entry *proc_root;	/* root for soundcard specific files */
	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 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 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 */
	struct mutex power_lock;	/* power lock */
	wait_queue_head_t power_sleep;
#endif

#if defined(CONFIG_SND_MIXER_OSS) || defined(CONFIG_SND_MIXER_OSS_MODULE)
	struct snd_mixer_oss *mixer_oss;
	int mixer_oss_change_count;
#endif
};

#ifdef CONFIG_PM
static inline void snd_power_lock(struct snd_card *card)
{
	mutex_lock(&card->power_lock);
}

static inline void snd_power_unlock(struct snd_card *card)
{
	mutex_unlock(&card->power_lock);
}

static inline unsigned int snd_power_get_state(struct snd_card *card)
{
	return card->power_state;
}

static inline void snd_power_change_state(struct snd_card *card, unsigned int state)
{
	card->power_state = state;
	wake_up(&card->power_sleep);
}

/* init.c */
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) { return 0; }
#define snd_power_get_state(card)	SNDRV_CTL_POWER_D0
#define snd_power_change_state(card, state)	do { (void)(card); } while (0)

#endif /* CONFIG_PM */

struct snd_minor {
	int type;			/* SNDRV_DEVICE_TYPE_XXX */
	int card;			/* card number */
	int device;			/* device number */
	const struct file_operations *f_ops;	/* file operations */
	void *private_data;		/* private data for f_ops->open */
	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_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,
			    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);
#endif

int snd_minor_info_init(void);
int snd_minor_info_done(void);

/* sound_oss.c */

#ifdef CONFIG_SND_OSSEMUL
int snd_minor_info_oss_init(void);
int snd_minor_info_oss_done(void);
#else
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 */

int copy_to_user_fromio(void __user *dst, const volatile void __iomem *src, size_t count);
int copy_from_user_toio(volatile void __iomem *dst, const void __user *src, size_t count);

/* init.c */

extern struct snd_card *snd_cards[SNDRV_CARDS];
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
#define SND_MIXER_OSS_NOTIFY_FREE	2
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_disconnect(struct snd_card *card);
int snd_card_free(struct snd_card *card);
int snd_card_free_when_closed(struct snd_card *card);
int snd_card_register(struct snd_card *card);
int snd_card_info_init(void);
int snd_card_info_done(void);
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

/* device.c */

int snd_device_new(struct snd_card *card, snd_device_type_t type,
		   void *device_data, struct snd_device_ops *ops);
int snd_device_register(struct snd_card *card, void *device_data);
int snd_device_register_all(struct snd_card *card);
int snd_device_disconnect(struct snd_card *card, void *device_data);
int snd_device_disconnect_all(struct snd_card *card);
int snd_device_free(struct snd_card *card, void *device_data);
int snd_device_free_all(struct snd_card *card, snd_device_cmd_t cmd);

/* isadma.c */

#ifdef CONFIG_ISA_DMA_API
#define DMA_MODE_NO_ENABLE	0x0100

void snd_dma_program(unsigned long dma, unsigned long addr, unsigned int size, unsigned short mode);
void snd_dma_disable(unsigned long dma);
unsigned int snd_dma_pointer(unsigned long dma, unsigned int size);
#endif

/* misc.c */
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
/**
 * snd_printk - printk wrapper
 * @fmt: format string
 *
 * Works like print() 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

#ifdef CONFIG_SND_DEBUG

#define __ASTRING__(x) #x

#ifdef CONFIG_SND_VERBOSE_PRINTK
/**
 * 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, args...) \
	snd_verbose_printd(__FILE__, __LINE__, fmt ,##args)
#else
#define snd_printd(fmt, args...) \
	printk(fmt ,##args)
#endif
/**
 * snd_assert - run-time assertion macro
 * @expr: expression
 *
 * 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.
 */
#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)

#else /* !CONFIG_SND_DEBUG */

#define snd_printd(fmt, args...)	/* nothing */
#define snd_assert(expr, args...)	(void)(expr)
#define snd_BUG()			/* nothing */

#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, args...) snd_printk(format, ##args)
#else
#define snd_printdd(format, args...) /* nothing */
#endif


#define SNDRV_OSS_VERSION         ((3<<16)|(8<<8)|(1<<4)|(0))	/* 3.8.1a */

/* 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
#endif

/* PCI quirk list helper */
struct snd_pci_quirk {
	unsigned short subvendor;	/* PCI subvendor ID */
	unsigned short subdevice;	/* PCI subdevice ID */
	int value;			/* value */
#ifdef CONFIG_SND_DEBUG_VERBOSE
	const char *name;		/* name of the device (optional) */
#endif
};

#define _SND_PCI_QUIRK_ID(vend,dev) \
	.subvendor = (vend), .subdevice = (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)}
#else
#define SND_PCI_QUIRK(vend,dev,xname,val) \
	{_SND_PCI_QUIRK_ID(vend, dev), .value = (val)}
#endif

const struct snd_pci_quirk *
snd_pci_quirk_lookup(struct pci_dev *pci, const struct snd_pci_quirk *list);


#endif /* __SOUND_CORE_H */
Commit	Line	Data
1da177e4 LT	1	#ifndef __SOUND_CORE_H
	2	#define __SOUND_CORE_H
	3
	4	/*
	5	* Main header file for the ALSA driver
c1017a4c	6	* Copyright (c) 1994-2001 by Jaroslav Kysela <perex@perex.cz>
1da177e4 LT	7	*
	8	*
	9	* This program is free software; you can redistribute it and/or modify
	10	* it under the terms of the GNU General Public License as published by
	11	* the Free Software Foundation; either version 2 of the License, or
	12	* (at your option) any later version.
	13	*
	14	* This program is distributed in the hope that it will be useful,
	15	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	16	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	17	* GNU General Public License for more details.
	18	*
	19	* You should have received a copy of the GNU General Public License
	20	* along with this program; if not, write to the Free Software
	21	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	22	*
	23	*/
	24
9004acc7	25	#include <linux/module.h>
1da177e4	26	#include <linux/sched.h> /* wake_up() */
1a60d4c5	27	#include <linux/mutex.h> /* struct mutex */
1da177e4	28	#include <linux/rwsem.h> /* struct rw_semaphore */
1da177e4	29	#include <linux/pm.h> /* pm_message_t */
9d19f48c	30	#include <linux/device.h>
1da177e4	31
9004acc7 TI	32	/* number of supported soundcards */
	33	#ifdef CONFIG_SND_DYNAMIC_MINORS
	34	#define SNDRV_CARDS 32
	35	#else
	36	#define SNDRV_CARDS 8 /* don't change - minor numbers */
	37	#endif
	38
	39	#define CONFIG_SND_MAJOR 116 /* standard configuration */
	40
1da177e4 LT	41	/* forward declarations */
	42	#ifdef CONFIG_PCI
	43	struct pci_dev;
	44	#endif
	45	#ifdef CONFIG_SBUS
	46	struct sbus_dev;
	47	#endif
	48
	49	/* device allocation stuff */
	50
	51	#define SNDRV_DEV_TYPE_RANGE_SIZE 0x1000
	52
512bbd6a TI	53	typedef int __bitwise snd_device_type_t;
	54	#define SNDRV_DEV_TOPLEVEL ((__force snd_device_type_t) 0)
	55	#define SNDRV_DEV_CONTROL ((__force snd_device_type_t) 1)
	56	#define SNDRV_DEV_LOWLEVEL_PRE ((__force snd_device_type_t) 2)
	57	#define SNDRV_DEV_LOWLEVEL_NORMAL ((__force snd_device_type_t) 0x1000)
	58	#define SNDRV_DEV_PCM ((__force snd_device_type_t) 0x1001)
	59	#define SNDRV_DEV_RAWMIDI ((__force snd_device_type_t) 0x1002)
	60	#define SNDRV_DEV_TIMER ((__force snd_device_type_t) 0x1003)
	61	#define SNDRV_DEV_SEQUENCER ((__force snd_device_type_t) 0x1004)
	62	#define SNDRV_DEV_HWDEP ((__force snd_device_type_t) 0x1005)
	63	#define SNDRV_DEV_INFO ((__force snd_device_type_t) 0x1006)
	64	#define SNDRV_DEV_BUS ((__force snd_device_type_t) 0x1007)
	65	#define SNDRV_DEV_CODEC ((__force snd_device_type_t) 0x1008)
	66	#define SNDRV_DEV_LOWLEVEL ((__force snd_device_type_t) 0x2000)
	67
	68	typedef int __bitwise snd_device_state_t;
	69	#define SNDRV_DEV_BUILD ((__force snd_device_state_t) 0)
	70	#define SNDRV_DEV_REGISTERED ((__force snd_device_state_t) 1)
	71	#define SNDRV_DEV_DISCONNECTED ((__force snd_device_state_t) 2)
	72
	73	typedef int __bitwise snd_device_cmd_t;
	74	#define SNDRV_DEV_CMD_PRE ((__force snd_device_cmd_t) 0)
	75	#define SNDRV_DEV_CMD_NORMAL ((__force snd_device_cmd_t) 1)
	76	#define SNDRV_DEV_CMD_POST ((__force snd_device_cmd_t) 2)
	77
	78	struct snd_device;
	79
	80	struct snd_device_ops {
	81	int (dev_free)(struct snd_device dev);
	82	int (dev_register)(struct snd_device dev);
	83	int (dev_disconnect)(struct snd_device dev);
512bbd6a TI	84	};
	85
	86	struct snd_device {
1da177e4	87	struct list_head list; /* list of registered devices */
512bbd6a	88	struct snd_card card; / card which holds this device */
1da177e4 LT	89	snd_device_state_t state; /* state of the device */
	90	snd_device_type_t type; /* device type */
	91	void device_data; / device structure */
512bbd6a	92	struct snd_device_ops ops; / operations */
1da177e4 LT	93	};
1da177e4 LT	94
512bbd6a	95	#define snd_device(n) list_entry(n, struct snd_device, list)
1da177e4 LT	96
	97	/* monitor files for graceful shutdown (hotplug) */
	98
	99	struct snd_monitor_file {
	100	struct file *file;
	101	struct snd_monitor_file *next;
a9edfc60 KW	102	const struct file_operations *disconnected_f_op;
a9edfc60 KW	103	struct list_head shutdown_list;
1da177e4 LT	104	};
1da177e4 LT	105
1da177e4 LT	106	/* main structure for soundcard */
1da177e4 LT	107
512bbd6a	108	struct snd_card {
d5750f67 HK	109	int number; /* number of soundcard (index to
d5750f67 HK	110	snd_cards) */
1da177e4 LT	111
	112	char id[16]; /* id string of this card */
	113	char driver[16]; /* driver name */
	114	char shortname[32]; /* short name of this soundcard */
	115	char longname[80]; /* name of this soundcard */
	116	char mixername[80]; /* mixer name */
d5750f67 HK	117	char components[80]; /* card components delimited with
d5750f67 HK	118	space */
1da177e4 LT	119	struct module module; / top-level module */
	120
	121	void private_data; / private data for soundcard */
512bbd6a	122	void (private_free) (struct snd_card card); /* callback for freeing of
d5750f67	123	private data */
1da177e4 LT	124	struct list_head devices; /* devices */
	125
	126	unsigned int last_numid; /* last used numeric ID */
	127	struct rw_semaphore controls_rwsem; /* controls list lock */
	128	rwlock_t ctl_files_rwlock; /* ctl_files list lock */
	129	int controls_count; /* count of all controls */
	130	int user_ctl_count; /* count of all user controls */
	131	struct list_head controls; /* all controls for this card */
	132	struct list_head ctl_files; /* active control files */
	133
512bbd6a TI	134	struct snd_info_entry proc_root; / root for soundcard specific files */
512bbd6a TI	135	struct snd_info_entry proc_id; / the card id */
1da177e4 LT	136	struct proc_dir_entry proc_root_link; / number link to real id */
	137
	138	struct snd_monitor_file files; / all files associated to this card */
d5750f67 HK	139	struct snd_shutdown_f_ops s_f_ops; / file operations in the shutdown
d5750f67 HK	140	state */
1da177e4 LT	141	spinlock_t files_lock; /* lock the files for this card */
1da177e4 LT	142	int shutdown; /* this card is going down */
c461482c	143	int free_on_last_close; /* free in context of file_release */
1da177e4	144	wait_queue_head_t shutdown_sleep;
7d2aae1e TI	145	struct device dev; / device assigned to this card */
	146	#ifndef CONFIG_SYSFS_DEPRECATED
	147	struct device card_dev; / cardX object for sysfs */
	148	#endif
1da177e4 LT	149
1da177e4 LT	150	#ifdef CONFIG_PM
1da177e4	151	unsigned int power_state; /* power state */
1a60d4c5	152	struct mutex power_lock; /* power lock */
1da177e4	153	wait_queue_head_t power_sleep;
1da177e4 LT	154	#endif
	155
	156	#if defined(CONFIG_SND_MIXER_OSS) \|\| defined(CONFIG_SND_MIXER_OSS_MODULE)
512bbd6a	157	struct snd_mixer_oss *mixer_oss;
1da177e4 LT	158	int mixer_oss_change_count;
	159	#endif
	160	};
	161
	162	#ifdef CONFIG_PM
512bbd6a	163	static inline void snd_power_lock(struct snd_card *card)
1da177e4	164	{
1a60d4c5	165	mutex_lock(&card->power_lock);
1da177e4 LT	166	}
1da177e4 LT	167
512bbd6a	168	static inline void snd_power_unlock(struct snd_card *card)
1da177e4	169	{
1a60d4c5	170	mutex_unlock(&card->power_lock);
1da177e4 LT	171	}
1da177e4 LT	172
512bbd6a	173	static inline unsigned int snd_power_get_state(struct snd_card *card)
1da177e4 LT	174	{
	175	return card->power_state;
	176	}
	177
512bbd6a	178	static inline void snd_power_change_state(struct snd_card *card, unsigned int state)
1da177e4 LT	179	{
	180	card->power_state = state;
	181	wake_up(&card->power_sleep);
	182	}
d5750f67 HK	183
d5750f67 HK	184	/* init.c */
cbac4b0c	185	int snd_power_wait(struct snd_card *card, unsigned int power_state);
d5750f67	186
1da177e4 LT	187	#else /* ! CONFIG_PM */
	188
	189	#define snd_power_lock(card) do { (void)(card); } while (0)
	190	#define snd_power_unlock(card) do { (void)(card); } while (0)
6fdb94bd	191	static inline int snd_power_wait(struct snd_card *card, unsigned int state) { return 0; }
1da177e4 LT	192	#define snd_power_get_state(card) SNDRV_CTL_POWER_D0
1da177e4 LT	193	#define snd_power_change_state(card, state) do { (void)(card); } while (0)
1da177e4 LT	194
	195	#endif /* CONFIG_PM */
	196
512bbd6a	197	struct snd_minor {
2af677fc	198	int type; /* SNDRV_DEVICE_TYPE_XXX */
6983b724	199	int card; /* card number */
1da177e4	200	int device; /* device number */
99ac48f5	201	const struct file_operations f_ops; / file operations */
f87135f5	202	void private_data; / private data for f_ops->open */
d80f19fa	203	struct device dev; / device for sysfs */
1da177e4 LT	204	};
1da177e4 LT	205
7d2aae1e TI	206	/* return a device pointer linked to each sound device as a parent */
	207	static inline struct device snd_card_get_device_link(struct snd_card card)
	208	{
	209	#ifdef CONFIG_SYSFS_DEPRECATED
	210	return card ? card->dev : NULL;
	211	#else
	212	return card ? card->card_dev : NULL;
	213	#endif
	214	}
	215
1da177e4 LT	216	/* sound.c */
1da177e4 LT	217
f1902860	218	extern int snd_major;
1da177e4	219	extern int snd_ecards_limit;
d80f19fa	220	extern struct class *sound_class;
1da177e4 LT	221
	222	void snd_request_card(int card);
	223
12b131c4 JB	224	int snd_register_device_for_dev(int type, struct snd_card *card,
	225	int dev,
	226	const struct file_operations *f_ops,
	227	void *private_data,
	228	const char *name,
	229	struct device *device);
	230
	231	/**
	232	* snd_register_device - Register the ALSA device file for the card
	233	* @type: the device type, SNDRV_DEVICE_TYPE_XXX
	234	* @card: the card instance
	235	* @dev: the device index
	236	* @f_ops: the file operations
	237	* @private_data: user pointer for f_ops->open()
	238	* @name: the device file name
	239	*
	240	* Registers an ALSA device file for the given card.
	241	* The operators have to be set in reg parameter.
	242	*
	243	* This function uses the card's device pointer to link to the
	244	* correct &struct device.
	245	*
	246	* Returns zero if successful, or a negative error code on failure.
	247	*/
	248	static inline int snd_register_device(int type, struct snd_card *card, int dev,
	249	const struct file_operations *f_ops,
	250	void *private_data,
	251	const char *name)
	252	{
	253	return snd_register_device_for_dev(type, card, dev, f_ops,
	254	private_data, name,
c2902c8a	255	snd_card_get_device_link(card));
12b131c4 JB	256	}
12b131c4 JB	257
512bbd6a	258	int snd_unregister_device(int type, struct snd_card *card, int dev);
f87135f5	259	void *snd_lookup_minor_data(unsigned int minor, int type);
9d19f48c	260	int snd_add_device_sysfs_file(int type, struct snd_card *card, int dev,
d80f19fa	261	struct device_attribute *attr);
1da177e4 LT	262
1da177e4 LT	263	#ifdef CONFIG_SND_OSSEMUL
2af677fc	264	int snd_register_oss_device(int type, struct snd_card *card, int dev,
99ac48f5	265	const struct file_operations f_ops, void private_data,
f87135f5	266	const char *name);
512bbd6a	267	int snd_unregister_oss_device(int type, struct snd_card *card, int dev);
f87135f5	268	void *snd_lookup_oss_minor_data(unsigned int minor, int type);
1da177e4 LT	269	#endif
	270
	271	int snd_minor_info_init(void);
	272	int snd_minor_info_done(void);
	273
	274	/* sound_oss.c */
	275
	276	#ifdef CONFIG_SND_OSSEMUL
	277	int snd_minor_info_oss_init(void);
	278	int snd_minor_info_oss_done(void);
1da177e4	279	#else
ad5fada5 PM	280	static inline int snd_minor_info_oss_init(void) { return 0; }
ad5fada5 PM	281	static inline int snd_minor_info_oss_done(void) { return 0; }
1da177e4 LT	282	#endif
	283
	284	/* memory.c */
	285
1da177e4 LT	286	int copy_to_user_fromio(void __user dst, const volatile void __iomem src, size_t count);
	287	int copy_from_user_toio(volatile void __iomem dst, const void __user src, size_t count);
	288
	289	/* init.c */
	290
512bbd6a	291	extern struct snd_card *snd_cards[SNDRV_CARDS];
746df948	292	int snd_card_locked(int card);
1da177e4 LT	293	#if defined(CONFIG_SND_MIXER_OSS) \|\| defined(CONFIG_SND_MIXER_OSS_MODULE)
	294	#define SND_MIXER_OSS_NOTIFY_REGISTER 0
	295	#define SND_MIXER_OSS_NOTIFY_DISCONNECT 1
	296	#define SND_MIXER_OSS_NOTIFY_FREE 2
512bbd6a	297	extern int (snd_mixer_oss_notify_callback)(struct snd_card card, int cmd);
1da177e4 LT	298	#endif
1da177e4 LT	299
512bbd6a	300	struct snd_card snd_card_new(int idx, const char id,
1da177e4	301	struct module *module, int extra_size);
512bbd6a TI	302	int snd_card_disconnect(struct snd_card *card);
512bbd6a TI	303	int snd_card_free(struct snd_card *card);
c461482c	304	int snd_card_free_when_closed(struct snd_card *card);
512bbd6a	305	int snd_card_register(struct snd_card *card);
1da177e4 LT	306	int snd_card_info_init(void);
1da177e4 LT	307	int snd_card_info_done(void);
512bbd6a TI	308	int snd_component_add(struct snd_card card, const char component);
	309	int snd_card_file_add(struct snd_card card, struct file file);
	310	int snd_card_file_remove(struct snd_card card, struct file file);
1da177e4 LT	311
1da177e4 LT	312	#ifndef snd_card_set_dev
edab938e	313	#define snd_card_set_dev(card, devptr) ((card)->dev = (devptr))
1da177e4 LT	314	#endif
	315
	316	/* device.c */
	317
512bbd6a TI	318	int snd_device_new(struct snd_card *card, snd_device_type_t type,
	319	void device_data, struct snd_device_ops ops);
	320	int snd_device_register(struct snd_card card, void device_data);
	321	int snd_device_register_all(struct snd_card *card);
	322	int snd_device_disconnect(struct snd_card card, void device_data);
	323	int snd_device_disconnect_all(struct snd_card *card);
	324	int snd_device_free(struct snd_card card, void device_data);
	325	int snd_device_free_all(struct snd_card *card, snd_device_cmd_t cmd);
1da177e4 LT	326
	327	/* isadma.c */
	328
276bd31c	329	#ifdef CONFIG_ISA_DMA_API
1da177e4 LT	330	#define DMA_MODE_NO_ENABLE 0x0100
	331
	332	void snd_dma_program(unsigned long dma, unsigned long addr, unsigned int size, unsigned short mode);
	333	void snd_dma_disable(unsigned long dma);
	334	unsigned int snd_dma_pointer(unsigned long dma, unsigned int size);
276bd31c	335	#endif
1da177e4 LT	336
1da177e4 LT	337	/* misc.c */
b709e574	338	struct resource;
b1d5776d	339	void release_and_free_resource(struct resource *res);
1da177e4	340
1da177e4 LT	341	#ifdef CONFIG_SND_VERBOSE_PRINTK
	342	void snd_verbose_printk(const char file, int line, const char format, ...)
	343	__attribute__ ((format (printf, 3, 4)));
	344	#endif
	345	#if defined(CONFIG_SND_DEBUG) && defined(CONFIG_SND_VERBOSE_PRINTK)
	346	void snd_verbose_printd(const char file, int line, const char format, ...)
	347	__attribute__ ((format (printf, 3, 4)));
	348	#endif
	349
	350	/* --- */
	351
	352	#ifdef CONFIG_SND_VERBOSE_PRINTK
	353	/**
	354	* snd_printk - printk wrapper
	355	* @fmt: format string
	356	*
	357	* Works like print() but prints the file and the line of the caller
	358	* when configured with CONFIG_SND_VERBOSE_PRINTK.
	359	*/
	360	#define snd_printk(fmt, args...) \
	361	snd_verbose_printk(__FILE__, __LINE__, fmt ,##args)
	362	#else
	363	#define snd_printk(fmt, args...) \
	364	printk(fmt ,##args)
	365	#endif
	366
	367	#ifdef CONFIG_SND_DEBUG
	368
	369	#define __ASTRING__(x) #x
	370
	371	#ifdef CONFIG_SND_VERBOSE_PRINTK
	372	/**
	373	* snd_printd - debug printk
0863afb3	374	* @fmt: format string
1da177e4	375	*
edab938e	376	* Works like snd_printk() for debugging purposes.
1da177e4 LT	377	* Ignored when CONFIG_SND_DEBUG is not set.
	378	*/
	379	#define snd_printd(fmt, args...) \
	380	snd_verbose_printd(__FILE__, __LINE__, fmt ,##args)
	381	#else
	382	#define snd_printd(fmt, args...) \
	383	printk(fmt ,##args)
	384	#endif
	385	/**
d5750f67	386	* snd_assert - run-time assertion macro
1da177e4	387	* @expr: expression
1da177e4 LT	388	*
	389	* This macro checks the expression in run-time and invokes the commands
	390	* given in the rest arguments if the assertion is failed.
	391	* When CONFIG_SND_DEBUG is not set, the expression is executed but
	392	* not checked.
	393	*/
7c22f1aa TI	394	#define snd_assert(expr, args...) do { \
	395	if (unlikely(!(expr))) { \
	396	snd_printk(KERN_ERR "BUG? (%s)\n", __ASTRING__(expr)); \
	397	dump_stack(); \
	398	args; \
	399	} \
1da177e4	400	} while (0)
7c22f1aa TI	401
	402	#define snd_BUG() do { \
	403	snd_printk(KERN_ERR "BUG?\n"); \
	404	dump_stack(); \
1da177e4 LT	405	} while (0)
	406
	407	#else /* !CONFIG_SND_DEBUG */
	408
	409	#define snd_printd(fmt, args...) /* nothing */
	410	#define snd_assert(expr, args...) (void)(expr)
7c22f1aa	411	#define snd_BUG() /* nothing */
1da177e4 LT	412
	413	#endif /* CONFIG_SND_DEBUG */
	414
62cf872a	415	#ifdef CONFIG_SND_DEBUG_VERBOSE
1da177e4 LT	416	/**
	417	* snd_printdd - debug printk
	418	* @format: format string
	419	*
edab938e	420	* Works like snd_printk() for debugging purposes.
62cf872a	421	* Ignored when CONFIG_SND_DEBUG_VERBOSE is not set.
1da177e4 LT	422	*/
	423	#define snd_printdd(format, args...) snd_printk(format, ##args)
	424	#else
	425	#define snd_printdd(format, args...) /* nothing */
	426	#endif
	427
1da177e4	428
1da177e4 LT	429	#define SNDRV_OSS_VERSION ((3<<16)\|(8<<8)\|(1<<4)\|(0)) /* 3.8.1a */
	430
	431	/* for easier backward-porting */
	432	#if defined(CONFIG_GAMEPORT) \|\| defined(CONFIG_GAMEPORT_MODULE)
	433	#ifndef gameport_set_dev_parent
	434	#define gameport_set_dev_parent(gp,xdev) ((gp)->dev.parent = (xdev))
	435	#define gameport_set_port_data(gp,r) ((gp)->port_data = (r))
	436	#define gameport_get_port_data(gp) (gp)->port_data
	437	#endif
	438	#endif
	439
d9ea472c TI	440	/* PCI quirk list helper */
	441	struct snd_pci_quirk {
	442	unsigned short subvendor; /* PCI subvendor ID */
	443	unsigned short subdevice; /* PCI subdevice ID */
	444	int value; /* value */
62cf872a	445	#ifdef CONFIG_SND_DEBUG_VERBOSE
d9ea472c TI	446	const char name; / name of the device (optional) */
	447	#endif
	448	};
	449
	450	#define _SND_PCI_QUIRK_ID(vend,dev) \
	451	.subvendor = (vend), .subdevice = (dev)
	452	#define SND_PCI_QUIRK_ID(vend,dev) {_SND_PCI_QUIRK_ID(vend, dev)}
62cf872a	453	#ifdef CONFIG_SND_DEBUG_VERBOSE
d9ea472c TI	454	#define SND_PCI_QUIRK(vend,dev,xname,val) \
	455	{_SND_PCI_QUIRK_ID(vend, dev), .value = (val), .name = (xname)}
	456	#else
	457	#define SND_PCI_QUIRK(vend,dev,xname,val) \
	458	{_SND_PCI_QUIRK_ID(vend, dev), .value = (val)}
	459	#endif
	460
	461	const struct snd_pci_quirk *
	462	snd_pci_quirk_lookup(struct pci_dev pci, const struct snd_pci_quirk list);
	463
	464
1da177e4	465	#endif /* __SOUND_CORE_H */