#ifndef _MASS_H
#define _MASS_H

#include	"_hc_core/dev_ep.h"
#include	"_hc_core/transfer.h"

#define MAX_MASS_DEVICES_DEFINE			2
#define MAX_MASS_DEVICES_LUN_DEFINE 	MAX_MASS_DEVICES_DEFINE+ 3

#define		mass_instance_ptr( x )			((x)->class_instance_ptr)								


#define MAX_MASS_LUN 4


/* 大容量設備描述數據結構 */
typedef struct MASS_STORAGE_CLASS
{	unsigned char  		LUN;							/* 該設備的邏輯單元數*/
	struct _HMEDLUN	LUN_info[MAX_MASS_LUN];	/* 邏輯單元描述信息結構指針 */ 
	device_instance 		*dvi_ptr;						/* 設備信息描述結構指針*/
	unsigned char		SubclassCode;					/* 子類代碼 */
	unsigned char		ProtocolCode;					/* 傳輸協議代碼CBI 或BULK*/ 
	unsigned char		CBW_Buff[31];					/* 批量傳輸的命令包緩沖區指針 */
	//unsigned char		RBC_Buff[12];				/* 命令設置緩沖區 */
}MassStorageClass,*PMassStorageClass;


/* 媒介設備句柄 */ 
typedef struct _HMEDLUN
{
	unsigned char  		LUN;					// 所在大容量設備的邏輯單元號
	MassStorageClass	*MSC;					// 大容量設備的描述信息結構
	unsigned char  		VendorInfo[8];			// 廠商信息
	unsigned char  		ProductInfo[16];		// 產品信息
	unsigned char  		ProductRev[4];			// 產品版本	
	unsigned int		LastLogicalBlookAddress;// 最后邏輯塊地址
	unsigned int  		BlockLengthInBytes;		// 邏輯塊長度
}hMedLUN;



void ini_mass_device_LUN_mem(void);
void ini_mass_device_mem(void);
unsigned short		mass_init_commands( device_instance *dvi_ptr );
unsigned short		mass_dispose_process( device_instance *dvi_ptr );

hMedLUN * Creat_Medium(device_instance *dvi_ptr ,unsigned char LUNIndex);
void Close_Medium(hMedLUN *hMedLUNPtr,unsigned char LUNIndex);
unsigned short ReadBlockData(hMedLUN 	*MediumPtr, unsigned char *BufferPtr,
							   unsigned int LBA, unsigned short TrBLength);		
unsigned short WriteBlockData(hMedLUN 	*MediumPtr, unsigned char *BufferPtr,
							   unsigned int LBA, unsigned short TrBLength);							  

#endif //	_MASS_H