c_fat.h

义隆公司eSLZ000 dsp处理芯片一个播放midi的样例程序。

#ifndef	__LIB_fat_h
#define __LIB_fat_h


/* initialize the file system */
extern unsigned char c_nand_fat_initialize(void);

/*	opens the file indicated by the input path name.  If the pathname
 *	points to a valid file, the file is added to the list of currently
 *	opened files for reading and the unique file handle is returned. */
extern int c_nand_fat_openRead(char *pathname, unsigned long *fileSize);

/*	reads the content of the file identified by the input handle.  It reads from
 *	where the last read operation on the same file ended.  If it's the first time
 *	the file is being read, it starts from the begining of the file. */
extern int c_nand_fat_readWord(long buf);

extern int c_nand_fat_OffsetReadWord(long offset, long buf);

/* closes the file indicated by the input */
extern int c_nand_fat_close(void);

/*	change current directory to the dirname directory. */
extern int c_nand_fat_ChangeDir(const char *dirname);

/*	List the content of the current directory.  It lists from where the last
 *  list operation on the same directory ended.  If it's the first time	the 
 *  directory is being read, it starts from the begining of the directory. */
extern int c_nand_fat_GetDirList(unsigned char *dirbuf, unsigned long start, int num, unsigned char *typeMask, int cDir);

extern int c_nand_fat_GetDirNum(unsigned char *typeMask, int cDir);

/* Set address to save flash block mapping table */
extern int c_nand_flash_SetTableAddr(void);

//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

/* initialize the file system */
extern unsigned char c_sd_fat_initialize(void);

/*	opens the file indicated by the input path name.  If the pathname
 *	points to a valid file, the file is added to the list of currently
 *	opened files for reading and the unique file handle is returned. */
extern int c_sd_fat_openRead(char *pathname, unsigned long *fileSize);

/*	reads the content of the file identified by the input handle.  It reads from
 *	where the last read operation on the same file ended.  If it's the first time
 *	the file is being read, it starts from the begining of the file. */
extern int c_sd_fat_readWord(long buf);

/* closes the file indicated by the input */
extern int c_sd_fat_close(void);

/*	change current directory to the dirname directory. */
extern int c_sd_fat_ChangeDir(const char *dirname);

/*	List the content of the current directory.  It lists from where the last
 *  list operation on the same directory ended.  If it's the first time	the 
 *  directory is being read, it starts from the begining of the directory. */
extern int c_sd_fat_GetDirList(unsigned char *dirbuf, unsigned long start, int num, unsigned char *typeMask, int cDir);

extern int c_sd_fat_GetDirNum(unsigned char *typeMask, int cDir);

#include "c_spi.h"
#endif