board.h

浙江大学的悟空嵌入式系统模拟器

/* -*- C++ -*- */

/**
 *  Copyright (c) 2005 Zhejiang University, P.R.China
 *
 *  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.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */ 

///==================================================
/**
 * @file        Board.h
 *
 * @brief       Evaluation Board(Ebony)'s configuration
 *				More devices to be added;
 *
 * @author      Chenfeng Zhou <[e-mail]> 
 *
 * Created    : <2005-02-24 16:37:04 by Cheney Chow>
 * Last update: <2005-02-24 16:43:29 by Cheney Chow>
 *
 * $Id: Board.h,v 1.1 2005/06/16 06:01:43 qilj Exp $
 */
///==================================================


#ifndef _PPC_BOARD_H_
#define _PPC_BOARD_H_

#include "Core/Board.h"
#include "PPC.h"

namespace PPC
{

    class PPC_API PPC_Board : public Core::Board_32Bit
    {
    public:
		virtual ~PPC_Board() {}

        virtual void io_do_cycle();

		//! Loading filesystem(ext2, cramfs, etc)
		bool load_fs(std::string name, Core::u32 addr);

		//! prepare for ramdisk loading;
        virtual bool prepare_rom();

        virtual Core::Interrupt_Type get_highest_interrupt();
        
		//! Dispatch read/write request to our devices region;
		virtual Core::Memory_Result io_dispatch(Core::Memory_Access_Type type,
			Core::u32 start, size_t size,
			Core::Bytecode_Type & buffer);

		//! device address space read;
		Core::Memory_Result io_read(Core::u32 start, size_t size, Core::Bytecode_Type & buffer);

		//! device address space write;
		Core::Memory_Result io_write(Core::u32 start, size_t size, Core::Bytecode_Type & buffer);

		virtual void on_create();

        virtual void on_destroy();

        virtual void on_reset() {}

		virtual void poll_extern_exception(){}

		virtual void on_interrupt(Core::Interrupt_Type){} 

	private:
		//! IO Region map;
		enum {UART_START = 0x40000200, UART_END = 0x40000208,
			  RTC_START = 0x48000000, RTC_END = 0x48002000,
			  UCOS_IO_START = 0x80000000, UCOS_IO_END = 0x80010000};
    };

} // namespace PPC

#endif  // _PPC_BOARD_H_