Release 4.7 include/sound/info.h

Directory: include/sound
#ifndef __SOUND_INFO_H

#define __SOUND_INFO_H

/*
 *  Header file for info interface
 *  Copyright (c) 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/poll.h>
#include <linux/seq_file.h>
#include <sound/core.h>

/* buffer for information */

struct snd_info_buffer {
	
char *buffer;		/* pointer to begin of buffer */
	
unsigned int curr;	/* current position in buffer */
	
unsigned int size;	/* current size */
	
unsigned int len;	/* total length of buffer */
	
int stop;		/* stop flag */
	
int error;		/* error code */
};


#define SNDRV_INFO_CONTENT_TEXT		0

#define SNDRV_INFO_CONTENT_DATA		1

struct snd_info_entry;


struct snd_info_entry_text {
	
void (*read)(struct snd_info_entry *entry,
		     struct snd_info_buffer *buffer);
	
void (*write)(struct snd_info_entry *entry,
		      struct snd_info_buffer *buffer);
};


struct snd_info_entry_ops {
	
int (*open)(struct snd_info_entry *entry,
		    unsigned short mode, void **file_private_data);
	
int (*release)(struct snd_info_entry *entry,
		       unsigned short mode, void *file_private_data);
	
ssize_t (*read)(struct snd_info_entry *entry, void *file_private_data,
			struct file *file, char __user *buf,
			size_t count, loff_t pos);
	
ssize_t (*write)(struct snd_info_entry *entry, void *file_private_data,
			 struct file *file, const char __user *buf,
			 size_t count, loff_t pos);
	
loff_t (*llseek)(struct snd_info_entry *entry,
			 void *file_private_data, struct file *file,
			 loff_t offset, int orig);
	
unsigned int (*poll)(struct snd_info_entry *entry,
			     void *file_private_data, struct file *file,
			     poll_table *wait);
	
int (*ioctl)(struct snd_info_entry *entry, void *file_private_data,
		     struct file *file, unsigned int cmd, unsigned long arg);
	
int (*mmap)(struct snd_info_entry *entry, void *file_private_data,
		    struct inode *inode, struct file *file,
		    struct vm_area_struct *vma);
};


struct snd_info_entry {
	
const char *name;
	
umode_t mode;
	
long size;
	
unsigned short content;
	union {
		
struct snd_info_entry_text text;
		
struct snd_info_entry_ops *ops;
	} 
c;
	
struct snd_info_entry *parent;
	
struct snd_card *card;
	
struct module *module;
	
void *private_data;
	
void (*private_free)(struct snd_info_entry *entry);
	
struct proc_dir_entry *p;
	
struct mutex access;
	
struct list_head children;
	
struct list_head list;
};

#if defined(CONFIG_SND_OSSEMUL) && defined(CONFIG_SND_PROC_FS)
int snd_info_minor_register(void);
#else

#define snd_info_minor_register()	0
#endif


#ifdef CONFIG_SND_PROC_FS

extern struct snd_info_entry *snd_seq_root;
#ifdef CONFIG_SND_OSSEMUL
extern struct snd_info_entry *snd_oss_root;
void snd_card_info_read_oss(struct snd_info_buffer *buffer);
#else

#define snd_oss_root NULL


static inline void snd_card_info_read_oss(struct snd_info_buffer *buffer) {}
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marcin slusarz marcin slusarz 11 100.00% 1 100.00%
Total 11 100.00% 1 100.00%

#endif

/**
 * snd_iprintf - printf on the procfs buffer
 * @buf: the procfs buffer
 * @fmt: the printf format
 *
 * Outputs the string on the procfs buffer just like printf().
 *
 * Return: zero for success, or a negative error code.
 */

#define snd_iprintf(buf, fmt, args...) \
	seq_printf((struct seq_file *)(buf)->buffer, fmt, ##args)

int snd_info_init(void);
int snd_info_done(void);

int snd_info_get_line(struct snd_info_buffer *buffer, char *line, int len);
const char *snd_info_get_str(char *dest, const char *src, int len);
struct snd_info_entry *snd_info_create_module_entry(struct module *module,
					       const char *name,
					       struct snd_info_entry *parent);
struct snd_info_entry *snd_info_create_card_entry(struct snd_card *card,
					     const char *name,
					     struct snd_info_entry *parent);
void snd_info_free_entry(struct snd_info_entry *entry);
int snd_info_store_text(struct snd_info_entry *entry);
int snd_info_restore_text(struct snd_info_entry *entry);

int snd_info_card_create(struct snd_card *card);
int snd_info_card_register(struct snd_card *card);
int snd_info_card_free(struct snd_card *card);
void snd_info_card_disconnect(struct snd_card *card);
void snd_info_card_id_change(struct snd_card *card);
int snd_info_register(struct snd_info_entry *entry);

/* for card drivers */


static inline int snd_card_proc_new(struct snd_card *card, const char *name,
				    struct snd_info_entry **entryp)
{
	*entryp = snd_info_create_card_entry(card, name, card->proc_root);
	return *entryp ? 0 : -ENOMEM;
}

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takashi iwai takashi iwai 31 67.39% 2 66.67%
jaroslav kysela jaroslav kysela 15 32.61% 1 33.33%
Total 46 100.00% 3 100.00%



static inline void snd_info_set_text_ops(struct snd_info_entry *entry, 
	void *private_data,
	void (*read)(struct snd_info_entry *, struct snd_info_buffer *))
{
	entry->private_data = private_data;
	entry->c.text.read = read;
}

Contributors
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jaroslav kysela jaroslav kysela 41 87.23% 2 66.67%
takashi iwai takashi iwai 6 12.77% 1 33.33%
Total 47 100.00% 3 100.00%

int snd_info_check_reserved_words(const char *str);

#else


#define snd_seq_root NULL

#define snd_oss_root NULL



static inline int snd_iprintf(struct snd_info_buffer *buffer, char *fmt, ...) { return 0; }
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jaroslav kysela jaroslav kysela 19 90.48% 1 50.00%
takashi iwai takashi iwai 2 9.52% 1 50.00%
Total 21 100.00% 2 100.00%



static inline int snd_info_init(void) { return 0; }
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jaroslav kysela jaroslav kysela 12 100.00% 1 100.00%
Total 12 100.00% 1 100.00%



static inline int snd_info_done(void) { return 0; }

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jaroslav kysela jaroslav kysela 12 100.00% 1 100.00%
Total 12 100.00% 1 100.00%



static inline int snd_info_get_line(struct snd_info_buffer *buffer, char *line, int len) { return 0; }
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jaroslav kysela jaroslav kysela 20 90.91% 1 50.00%
takashi iwai takashi iwai 2 9.09% 1 50.00%
Total 22 100.00% 2 100.00%



static inline char *snd_info_get_str(char *dest, char *src, int len) { return NULL; }
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jaroslav kysela jaroslav kysela 22 100.00% 1 100.00%
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static inline struct snd_info_entry *snd_info_create_module_entry(struct module *module, const char *name, struct snd_info_entry *parent) { return NULL; }
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jaroslav kysela jaroslav kysela 23 85.19% 2 66.67%
takashi iwai takashi iwai 4 14.81% 1 33.33%
Total 27 100.00% 3 100.00%



static inline struct snd_info_entry *snd_info_create_card_entry(struct snd_card *card, const char *name, struct snd_info_entry *parent) { return NULL; }
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jaroslav kysela jaroslav kysela 21 77.78% 2 66.67%
takashi iwai takashi iwai 6 22.22% 1 33.33%
Total 27 100.00% 3 100.00%



static inline void snd_info_free_entry(struct snd_info_entry *entry) { ; }

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jaroslav kysela jaroslav kysela 11 84.62% 1 50.00%
takashi iwai takashi iwai 2 15.38% 1 50.00%
Total 13 100.00% 2 100.00%



static inline int snd_info_card_create(struct snd_card *card) { return 0; }
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jaroslav kysela jaroslav kysela 13 86.67% 1 50.00%
takashi iwai takashi iwai 2 13.33% 1 50.00%
Total 15 100.00% 2 100.00%



static inline int snd_info_card_register(struct snd_card *card) { return 0; }
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jaroslav kysela jaroslav kysela 13 86.67% 1 50.00%
takashi iwai takashi iwai 2 13.33% 1 50.00%
Total 15 100.00% 2 100.00%



static inline int snd_info_card_free(struct snd_card *card) { return 0; }
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jaroslav kysela jaroslav kysela 13 86.67% 2 66.67%
takashi iwai takashi iwai 2 13.33% 1 33.33%
Total 15 100.00% 3 100.00%



static inline void snd_info_card_disconnect(struct snd_card *card) { }
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jaroslav kysela jaroslav kysela 5 45.45% 1 33.33%
Total 11 100.00% 3 100.00%



static inline void snd_info_card_id_change(struct snd_card *card) { }
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static inline int snd_info_register(struct snd_info_entry *entry) { return 0; }

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takashi iwai takashi iwai 3 20.00% 2 66.67%
Total 15 100.00% 3 100.00%



static inline int snd_card_proc_new(struct snd_card *card, const char *name,
				    struct snd_info_entry **entryp) { return -EINVAL; }
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takashi iwai takashi iwai 19 70.37% 1 50.00%
jaroslav kysela jaroslav kysela 8 29.63% 1 50.00%
Total 27 100.00% 2 100.00%


static inline void snd_info_set_text_ops(struct snd_info_entry *entry __attribute__((unused)),
					 void *private_data,
					 void (*read)(struct snd_info_entry *, struct snd_info_buffer *)) {}


static inline int snd_info_check_reserved_words(const char *str) { return 1; }

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takashi iwai takashi iwai 14 93.33% 1 50.00%
jaroslav kysela jaroslav kysela 1 6.67% 1 50.00%
Total 15 100.00% 2 100.00%

#endif

/*
 * OSS info part
 */

#if defined(CONFIG_SND_OSSEMUL) && defined(CONFIG_SND_PROC_FS)


#define SNDRV_OSS_INFO_DEV_AUDIO	0

#define SNDRV_OSS_INFO_DEV_SYNTH	1

#define SNDRV_OSS_INFO_DEV_MIDI		2

#define SNDRV_OSS_INFO_DEV_TIMERS	4

#define SNDRV_OSS_INFO_DEV_MIXERS	5


#define SNDRV_OSS_INFO_DEV_COUNT	6

int snd_oss_info_register(int dev, int num, char *string);

#define snd_oss_info_unregister(dev, num) snd_oss_info_register(dev, num, NULL)

#endif /* CONFIG_SND_OSSEMUL && CONFIG_SND_PROC_FS */

#endif /* __SOUND_INFO_H */
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jaroslav kysela jaroslav kysela 881 76.15% 11 42.31%
takashi iwai takashi iwai 244 21.09% 9 34.62%
marcin slusarz marcin slusarz 20 1.73% 1 3.85%
jie yang jie yang 4 0.35% 1 3.85%
linus torvalds linus torvalds 4 0.35% 1 3.85%
al viro al viro 3 0.26% 2 7.69%
ingo molnar ingo molnar 1 0.09% 1 3.85%
Total 1157 100.00% 26 100.00%
  Directory: include/sound

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	Total	11	100.00%	1	100.00%
cregit-Linux how code gets into the kernel

Release 4.7 include/sound/info.h

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