rbccmd.h

使用SL811芯片的USB_FAT文件系统源代码

#ifndef	_RBCCMD_H_
#define _RBCCMD_H_

#define RBC_CMD_READ10					0x28
#define RBC_CMD_READCAPACITY			0x25
#define RBC_CMD_WRITE10					0x2A
// RBC commands
#define SPC_CMD_INQUIRY					0x12
#define SPC_CMD_PRVENTALLOWMEDIUMREMOVAL		0x1E
#define SPC_CMD_REQUESTSENSE				0x03
#define SPC_CMD_TESTUNITREADY				0x00
////////////////////////////////////////////////////////////////////////////////////
// Command Descriptor Block
//      _RBC : Reduced Block Command
//      _SPC : SPC-2 SCSI primary Command - 2
////////////////////////////////////////////////////////////////////////////////////
typedef struct _SYS_INFO_BLOCK
{
	unsigned long StartSector;
	unsigned long TotalSector;
		  
	INT16 BPB_BytesPerSec;
	INT8 BPB_SecPerClus;
		  
	INT8 BPB_NumFATs;
	INT16 BPB_RootEntCnt;
	INT16 BPB_TotSec16;
	// INT8 BPB_Media;
	INT16 BPB_FATSz16;
	INT16 BPB_SecPerTrk;
	INT16 BPB_NumHeads;
	unsigned long BPB_HiddSec;
	unsigned long BPB_TotSec32;
	//INT8 BS_DrvNum;
	// INT8 BS_BootSig;
	//INT8 BS_VolID[4];
	//INT8 BS_VolLab[11];
	//INT8 BS_FilSysType[8];
	///////////////////////////////
	unsigned long FatStartSector;
	unsigned long RootStartSector;
	unsigned long FirstDataSector;
	/////////////////////FAT32///////////////////////////////
	INT32 BPB_FATSz32;
	unsigned long RootStartCluster;
	unsigned long TotCluster;
	unsigned char FAT;	
} SYS_INFO_BLOCK;

typedef struct _FILE_INFO
{
	unsigned char bFileOpen;
	unsigned long StartCluster;//unsigned int StartCluster;
	unsigned long LengthInByte;
	unsigned long ClusterPointer;//unsigned int ClusterPointer;
	unsigned long SectorPointer;
	unsigned int OffsetofSector;
	unsigned char SectorofCluster;
	unsigned long pointer;
	unsigned long FatSectorPointer;//unsigned int	FatSectorPointer;
} FILE_INFO;

typedef struct _DIR_INFO{
	unsigned char name[8];
	unsigned char extension[3];
	unsigned char attribute;
	unsigned char Reserved[10];
	unsigned int lastUpdateDate;
	unsigned int lastUpdateTime;
	unsigned int startCluster;
	unsigned long length;
} DIR_INFO;

#endif/*_RBCCMD_H_*/