Private functions

Module Private Functions. More...

Collaboration diagram for Private functions:

Modules
	String functions
	String functions.
	Reentrant functions
	Request/Release grant to access the volume.
	FS Lock functions
	File lock control functions.
	Window functions
	Move/Flush disk access window in the file system object.
	Synchronization functions
	Synchronize file system and storage device.
	Sector-Number and Cluster-Nbr
	Get sector# from cluster#.
	FAT access
	FAT access.
	FAT handling
	FAT handling.
	Directory handling
	FAT handling.
	LFN handling
	Test/Pick/Fit an LFN segment from/to directory entry.

Functions
static FRESULT	dir_read (DIR *dp, int vol)
	Read an object from the directory. More...
static FRESULT	dir_register (DIR *dp)
	Register an object to the directory. More...
static FRESULT	dir_remove (DIR *dp)
	Remove an object from the directory. More...
static FRESULT	create_name (DIR *dp, const TCHAR **path)
	Pick a segment and create the object name in directory form. More...
static void	get_fileinfo (DIR *dp, FILINFO *fno)
	Get file information from directory entry. More...
static int	get_ldnumber (const TCHAR **path)
	Get logical drive number from path name. More...
static FRESULT	follow_path (DIR *dp, const TCHAR *path)
	Follow a file path. More...
static BYTE	check_fs (FATFS *fs, DWORD sect)
	Load a sector and check if it is an FAT boot sector. More...
static FRESULT	find_volume (FATFS **rfs, const TCHAR **path, BYTE wmode)
	Find logical drive and check if the volume is mounted. More...
static FRESULT	validate (void *obj)
	Check if the file/directory object is valid or not. More...

Detailed Description

Module Private Functions.

Function Documentation

static BYTE check_fs ( FATFS *  fs, DWORD  sect  )

static

Load a sector and check if it is an FAT boot sector.

Parameters

fs	File system object
sect	Sector# (lba) to check if it is an FAT boot record or not

Returns

• 0: FAT boor sector
• 1: Valid boor sector but not FAT
• 2: Not a boot sector
• 3: Disk error

Definition at line 2182 of file ff.c.

static FRESULT create_name ( DIR *  dp, const TCHAR **  path  )

static

Pick a segment and create the object name in directory form.

Parameters

dp	Pointer to the directory object
path	Pointer to pointer to the segment in the path string

Returns

• FR_OK: Successful
• FR_DISK_ERR: A disk error

Definition at line 1829 of file ff.c.

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static FRESULT dir_read ( DIR *  dp, int  vol  )

static

Read an object from the directory.

Parameters

dp	Pointer to the directory object
vol	Filtered 0: file/directory 1: volume label

Returns

FRESULT

Definition at line 1659 of file ff.c.

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static FRESULT dir_register ( DIR *  dp )

static

Register an object to the directory.

Parameters

dp	Target directory with object name to be created

Returns

• FR_OK: Successful
• FR_DENIED: No free entry or too many SFN collision
• FR_DISK_ERR: Disk error

Definition at line 1714 of file ff.c.

static FRESULT dir_remove ( DIR *  dp )

static

Remove an object from the directory.

Parameters

dp	Directory object pointing the entry to be removed

Returns

• FR_OK: Successful
• FR_DISK_ERR: A disk error

Definition at line 1788 of file ff.c.

static FRESULT find_volume ( FATFS **  rfs, const TCHAR **  path, BYTE  wmode  )

static

Find logical drive and check if the volume is mounted.

Parameters

rfs	Pointer to pointer to the found file system object
path	Pointer to pointer to the path name (drive number)
wmode	!=0: Check write protection for write access

Returns

FRESULT

Definition at line 2206 of file ff.c.

static FRESULT follow_path ( DIR *  dp, const TCHAR *  path  )

static

Follow a file path.

Parameters

dp	Directory object to return last directory and found object
path	Full-path string to find a file or directory

Returns

FRESULT

Definition at line 2123 of file ff.c.

static void get_fileinfo ( DIR *  dp, FILINFO *  fno  )

static

Get file information from directory entry.

Parameters

dp	Pointer to the directory object
fno	Pointer to the file information to be filled

Definition at line 2033 of file ff.c.

static int get_ldnumber ( const TCHAR **  path )

static

Get logical drive number from path name.

Parameters

path	Pointer to pointer to the path name

Returns

Returns logical drive number (-1:invalid drive)

Definition at line 2096 of file ff.c.

static FRESULT validate ( void *  obj )

static

Check if the file/directory object is valid or not.

Parameters

obj	Pointer to the object FIL/DIR to check validity

Returns

• FR_OK(0): The object is valid
• !=0: Invalid

Definition at line 2366 of file ff.c.