/home/jgoppert/Projects/ap/libraries/DataFlash/DataFlash.h

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/* ************************************************************ */
/* Test for DataFlash Log library                               */
/* ************************************************************ */
#ifndef DataFlash_h
#define DataFlash_h

// arduino mega SPI pins
#if defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
        #define DF_DATAOUT 51        // MOSI
        #define DF_DATAIN  50        // MISO 
        #define DF_SPICLOCK  52      // SCK
        #define DF_SLAVESELECT 53    // SS     (PB0)
    #define DF_RESET 31          // RESET  (PC6)
#else  // normal arduino SPI pins...
        #define DF_DATAOUT 11     //MOSI
        #define DF_DATAIN  12     //MISO 
        #define DF_SPICLOCK  13   //SCK
        #define DF_SLAVESELECT 10 //SS
#endif

// AT45DB161D Commands (from Datasheet)
#define DF_TRANSFER_PAGE_TO_BUFFER_1   0x53
#define DF_TRANSFER_PAGE_TO_BUFFER_2   0x55
#define DF_STATUS_REGISTER_READ   0xD7
#define DF_READ_MANUFACTURER_AND_DEVICE_ID   0x9F
#define DF_PAGE_READ   0xD2
#define DF_BUFFER_1_READ   0xD4
#define DF_BUFFER_2_READ   0xD6
#define DF_BUFFER_1_WRITE   0x84
#define DF_BUFFER_2_WRITE   0x87
#define DF_BUFFER_1_TO_PAGE_WITH_ERASE   0x83
#define DF_BUFFER_2_TO_PAGE_WITH_ERASE   0x86
#define DF_PAGE_ERASE   0x81
#define DF_BLOCK_ERASE   0x50
#define DF_SECTOR_ERASE   0x7C
#define DF_CHIP_ERASE_0   0xC7
#define DF_CHIP_ERASE_1   0x94
#define DF_CHIP_ERASE_2   0x80
#define DF_CHIP_ERASE_3   0x9A

class DataFlash_Class
{
  private:
        // DataFlash Log variables...   
        unsigned char df_BufferNum;
        unsigned char df_Read_BufferNum;
        unsigned int df_BufferIdx;
        unsigned int df_Read_BufferIdx;
        unsigned int df_PageAdr;
        unsigned int df_Read_PageAdr;
        unsigned char df_Read_END;
        unsigned char df_Stop_Write;
        //Methods
        unsigned char BufferRead (unsigned char BufferNum, unsigned int IntPageAdr);
        void BufferWrite (unsigned char BufferNum, unsigned int IntPageAdr, unsigned char Data);
        void BufferToPage (unsigned char BufferNum, unsigned int PageAdr, unsigned char wait);
        void PageToBuffer(unsigned char BufferNum, unsigned int PageAdr);
        void WaitReady();
        unsigned char ReadStatus();

  public:
        unsigned char df_manufacturer;
        unsigned char df_device_0;
        unsigned char df_device_1;

        DataFlash_Class(); // Constructor
        void Init();
        void ReadManufacturerID();
        int GetPage();
        int GetWritePage();
        void PageErase (unsigned int PageAdr);
        // Write methods
        void StartWrite(int PageAdr);
        void WriteByte(unsigned char data);
        void WriteInt(int data);
        void WriteLong(long data);
        // Read methods
        void StartRead(int PageAdr);
        unsigned char ReadByte();
        int ReadInt();
        long ReadLong();
};

extern DataFlash_Class DataFlash;

#endif