fat.h

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/*******************************************************************************

   (C) Copyright 2006, RAE Systems Inc. 	 All rights reserved

----------------- File Information ---------------------------------------------
       File Name: DIR.H
Last Modify Date: 9/19/2006
     Discription: FAT operation header file

---------------- Important Notes -----------------------------------------------


----------------- Rivision History ---------------------------------------------
         Version: V1.00
Last Modify Date: 9/17/2006
     Discription: Initial version, imported from ZLG_FS V1.00, derived from FAT.H

*******************************************************************************/

#ifndef __FAT_H__
#define __FAT_H__



/* General function return code definition */
#define RETURN_OK                   0x00    /* Operation successfully */
#define NOT_FIND_DISK               0x01    /* Logical disk not exist */
#define DISK_FULL                   0x02    /* Disk full */
#define SECTOR_NOT_IN_CACHE         0x03    /* Sector not cached */
#define NOT_EMPTY_CACHE             0x04    /* No empty cache */
#define SECTOR_READ_ERR             0x05    /* Read sector error */
#define CLUSTER_NOT_IN_DISK         0x06    /* Cluster not in the disk  */
#define NOT_FIND_FDT                0x07    /* Not find file/dir */
#define NOT_FAT_DISK                0x08    /* Not FAT disk */
#define FDT_OVER                    0x09    /* FDT index overrange */
#define FDT_EXISTS                  0x0A    /* File/dir already exist */
#define ROOT_FDT_FULL               0x0B    /* Root dir full */
#define DIR_EMPTY                   0x0C    /* Dir empty */
#define DIR_NOT_EMPTY               0x0D    /* Dir not empty */
#define PATH_NOT_FIND               0x0E    /* Can not find path */
#define FAT_ERR                     0x0F    /* FAT error */
#define FILE_NAME_ERR               0x10    /* File/dir name error */
#define FILE_EOF                    0x11    /* End of file */
#define FILE_LOCK                   0x12    /* File locked */
#define NOT_FIND_FILE               0x13    /* Not find specific file */
#define NOT_FIND_DIR                0x14    /* Not find specific dir */
#define NOT_RUN                     0xFD    /* Command not executed */
#define BAD_COMMAND                 0xFE    /* Invalid command */
#define PARAMETER_ERR               0xFF    /* Invalid parameter */


/* FAT type definition */
#define FAT12                       0
#define FAT16                       1
#define FAT32                       2


extern INT32U FATGetNextClus( INT8U Drive, INT32U Index );

extern void FATSetNextClus( INT8U Drive, INT32U Index, INT32U Next );

extern INT32U FATAddClus( INT8U Drive, INT32U Index );

extern void FATDelClusChain( INT8U Drive, INT32U Index );



#endif  /* #ifndef __FAT_H__ */