/* -*- mode: C++; tab-width: 4 -*- */
/* ===================================================================== *\
	Copyright (c) 2000-2001 Palm, Inc. or its subsidiaries.
	All rights reserved.

	This file is part of the Palm OS Emulator.

	This program is free software; you can redistribute it and/or modify
	it under the terms of the GNU General Public License as published by
	the Free Software Foundation; either version 2 of the License, or
	(at your option) any later version.
\* ===================================================================== */

#ifndef EmTRGATA_h
#define EmTRGATA_h

#include "EmRegs.h"
#include "EmTRGCFDefs.h"
#include "EmTRGCFIO.h"

#define IS_ALT_REG   true
#define IS_BASE_REG  false

typedef enum {MODE_DISK_IO=0, MODE_DRIVE_DIAGNOSTICS=1} AtaModeType;

class EmRegsCFAta 
{
	public:
		EmRegsCFAta(void); 	
		virtual ~EmRegsCFAta(void);

		void			Initialize(EmDiskTypeID DiskTypeID);
		void			Reset					(void);
		void			Dispose					(void);
        void			ReadByte(uint32 offset, uint8 * val);
        void			WriteByte(uint32 offset, uint8 val);
        void			ReadWord(uint32 offset, _Word * val);
        void			WriteWord(uint32 offset, _Word val);
	private:
		uint8			RegMem[NUM_IDE_REGS];
		AtaModeType		AtaMode;
        DiskIOParams    DiskParams;
		void			GetDiskIOParams(DiskIOParams * params);
		uint8 			Reg0ReadData(void);
		uint8 			RegReadError(Boolean is_alt_reg);
		uint8			Reg2ReadSectorCount(void);
		void			Reg0WriteData(void);
		void			Reg7WriteCmd(void);
		uint8 			RegReadStatus(Boolean is_alt_reg);
		uint8			Reg8ReadDataEven(void);
		void			Reg8WriteDataEven(void);
		uint8			Reg9ReadDataOdd(void);
		void			Reg9WriteDataOdd(void);
		void            RegEWriteDeviceControl(void);
		EmCFIO	    	DiskIO;
		uint8			ConvertStatus(void);
		void			CmdIdentifyDrive(void);
		void			CmdWriteSectors(void);
		void			CmdReadSectors(void);
		void			CmdDriveDiagnostic(void);
};

#endif	// EmTRGATA_h