#ifndef __EPP_PORT_H
#define __EPP_PORT_H

#include "utils.h"

#define SPP_DATA      0
#define SPP_STATUS    1
#define SPP_CONTROL   2
#define EPP_ADDRESS   3
#define EPP_DATA      4
#define EPP_DATA16    5
#define EPP_DATA32    7
#define ECR_REG       0x402

#define stsNormal     0
#define stsNotFound   1
#define stsNotEPP     2
#define stsNotConnect 3

class TEppPort {
public:

   TEppPort();
   ~TEppPort();

   int portStatus();
   unsigned portBase();

   void writeAddress(uchar a);
   uchar readAddress();

   void writeData(uchar d);
   void writeData(uchar a, uchar d);
   void writeData(ushort d);
   void writeData(uchar a, ushort d);
   void writeData(uchar far *d, ushort l);
   void writeData(uchar a, uchar far *d, ushort l);
    
   uchar readDataByte();
   uchar readDataByte(uchar a);
   ushort readDataWord();
   ushort readDataWord(uchar a);
   void readData(uchar far *d, ushort l);
   void readData(uchar a, uchar far *d, ushort l);
   int cmpData(uchar a, uchar far *d, ushort l);
private:

   int checkPort();
   int portExist(unsigned port);
   int isEPP();
   void initPort(unsigned base);

private:

   int statusPort;

   unsigned baseAddress;
   unsigned SppData;
   unsigned SppControl;
   unsigned SppStatus;
   unsigned EppAddress;
   unsigned EppData8;
   unsigned EppData16;
   unsigned EppData32;
   unsigned EcpEcrReg;
};

#endif      // __EPP_PORT_H