/* ----------------------------------------------------------------------------
 *         ATMEL Microcontroller Software Support 
 * ----------------------------------------------------------------------------
 * Copyright (c) 2008, Atmel Corporation
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//------------------------------------------------------------------------------
/// \unit
/// !Purpose
/// 
/// Logical Unit Number used by the Mass Storage driver and the SCSI protocol.
/// Represents a logical hard-drive.
/// 
/// !Usage
/// TODO
//------------------------------------------------------------------------------

#ifndef MSDLUN_H
#define MSDLUN_H

//------------------------------------------------------------------------------
//         Headers
//------------------------------------------------------------------------------

#include "SBC.h"
#include <memories/Media.h>
#include <usb/device/core/USBD.h>

//------------------------------------------------------------------------------
//      Definitions
//------------------------------------------------------------------------------

#define LUN_STATUS_SUCCESS          0x00
#define LUN_STATUS_ERROR            0x02

//------------------------------------------------------------------------------
//      Structures
//------------------------------------------------------------------------------

// LUN structure
typedef struct {

    SBCInquiryData          *inquiryData;
    unsigned char               *readWriteBuffer;
    SBCRequestSenseData    requestSenseData;
    SBCReadCapacity10Data readCapacityData;
    Media                     *media;
    unsigned int                baseAddress;
    unsigned int                size;
    unsigned int                blockSize;

} MSDLun;

//------------------------------------------------------------------------------
//      Exported functions
//------------------------------------------------------------------------------
extern void LUN_Init(MSDLun         *lun,
                     Media       *media,
                     unsigned char *buffer,
                     unsigned int  baseAddress,
                     unsigned int  size,
                     unsigned int  blockSize);

extern unsigned char LUN_Write(MSDLun *lun,
                               unsigned int blockAddress,
                               void         *data,
                               unsigned int length,
                               TransferCallback   callback,
                               void         *argument);

extern unsigned char LUN_Read(MSDLun        *lun,
                              unsigned int blockAddress,
                              void         *data,
                              unsigned int length,
                              TransferCallback   callback,
                              void         *argument);

#endif //#ifndef MSDLUN_H