/* ----------------------------------------------------------------------------
 *         ATMEL Microcontroller Software Support 
 * ----------------------------------------------------------------------------
 * Copyright (c) 2008, Atmel Corporation
 *
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 */
//------------------------------------------------------------------------------
/// \unit
///
/// !Purpose
/// 
/// The Hardware Adaptation Layer manages the hardware functions of the %NORFLASH
/// %Flash. It implements a low level driver to manage the hardware functionality 
/// of %NORFLASH.
/// 
/// !Usage
///  
/// -# WriteRawData() is used to write data to the %NorFlash device.
/// -# ReadRawData() is used to read data from the %NorFlash device.
/// -# The specified address for read/write opertion is an linear byte
///    address of targer application byte address space represented by 
///    WORD((8-bit, 16-bit, 32-bit). The start (base) address of the 
///    flash memory in this address space is defined in board.h file 
///    as BOARD_NORFLASH_ADDR and users might need to change it.
/// -# WriteCommand() is used to write a command to specified command 
///    address.
/// 
///  ! NorFlash Error Codes
///
/// It provides detailed error codes to describe the various errors 
/// that may occur during the operation. Some functions return an error
/// number directly as the function value. These functions return a value
/// of zero (NorCommon_ERROR_NONE) to indicate a success.
//------------------------------------------------------------------------------
 

#ifndef NORFLASHCOMMON_H
#define NORFLASHCOMMON_H

//------------------------------------------------------------------------------
//          Defination
//------------------------------------------------------------------------------
/// The function completed successfully.
#define NorCommon_ERROR_NONE               0

/// Can not detect common flash infterface.
#define NorCommon_ERROR_UNKNOWNMODEL       1

/// A read operation cannot be carried out.
#define NorCommon_ERROR_CANNOTREAD         2

/// A write operation cannot be carried out.
#define NorCommon_ERROR_CANNOTWRITE        3

/// A erase operation cannot be carried out.
#define NorCommon_ERROR_CANNOTERASE        4

/// A locked operation cannot be carried out.
#define NorCommon_ERROR_PROTECT            5

//------------------------------------------------------------------------------
//         Exported functions
//------------------------------------------------------------------------------
extern unsigned char WriteCommand(
    unsigned char portWidth, 
    unsigned int commandAddress, 
    unsigned int command);
    
extern void ReadRawData(
    unsigned char portWidth,
    unsigned int  dataAddress,
    unsigned char *buffer);
        
extern void WriteRawData(
    unsigned char portWidth,
    unsigned int  dataAddress,
    unsigned char *buffer);
    
#endif //#ifndef NORFLASHCOMMON_H