fscan.h

嵌入式系统中文件系统源代码

#ifndef _FAT1X_SCAN_H
#define _FAT1X_SCAN_H

//#include "fat1x.h"

struct scan_dir
{
  unsigned char pathName[MAX_PATHNAME_LEN];	// the complete path name of the dir
  unsigned short startCluster;			// the starting cluster of the dir
};


/*************************************************************
Fuction : scanDisk
	Scan the RAMDisk for errors
Input:
	interactive - ECHO_ON: show progress during scanning
		      ECHO_OFF: show nothing during scanning
	fix - 1: automatically fix error
	      0: report only, don't fix
Output:
	0: no error is found
	1: FAT tables unmatch
	2
**************************************************************/
char FAT_scanDisk(char interactive, char fix);


/*************************************************************
Fuction : FAT_fat_compare
	Compare the two FATs
Input:
	drive: the target drive
Output:
	 0: match
	 1: unmatch and FAT1 is considered correct
	 2: unmatch and FAT2 is considered correct
	-1: error
**************************************************************/
int FAT_fat_compare(int drive);


/*************************************************************
Fuction : FAT_fat_copy
	Copy a FAT table to another
Input:
	drive - the target drive
	source - the starting sector number of the source FAT table
	target - the starting sector number of the target FAT table
Output:
	 0: SUCCESS
	-1: FAILURE
**************************************************************/
int FAT_fat_copy(int drive, unsigned long source, unsigned long target);


/*************************************************************
Fuction : FAT_checkEntry
	Check the integrity of a dir entry
Input:
	upperDir - the directory in which this file is stored
	entry - the directory structure of the target file
Output:
	 0: SUCCESS
	 1: file has error
	-1: FAILURE (check errno)
**************************************************************/
/*
#ifdef LFN
int checkEntry(unsigned char *upperDir, struct directory *entry, struct LFNinfo *longInfo, unsigned short *blockBuffer);
#else
int checkEntry(unsigned char *upperDir, struct directory *entry);
#endif
*/
#ifdef FAT_LFN
int FAT_checkEntry(int drive, unsigned char *upperDir, struct FAT_directory *entry, struct FAT_LFNinfo *longInfo, unsigned short *blockBuffer);
#else
int FAT_checkEntry(int drive, unsigned char *upperDir, struct FAT_directory *entry);
#endif


/*************************************************************
Fuction : FAT_checkDir
	Check the integrity of a sub-directory
Input:
	drive - the target drive
	name - the complete pathname of the target sub-directory
	head - the head cluster in the cluster chain of the target sub-directory
Output:
	 0: SUCCESS
	 1: dir has error
	-1: FAILURE
**************************************************************/
//int checkDir(unsigned char *name, unsigned short head);
int FAT_checkDir(int drive, unsigned char *name, unsigned short head);

#endif