/*
 * CommandSequenceGenerator.cpp
 *
 *  Created on: Mar 5, 2014
 *      Author: jonny
 */

#include "CommandSequenceGenerator.h"
#include "common/dramExtension.h"

using namespace std;

namespace controller {

CommandSequence CommandSequenceGenerator::generateCommandSequence(tlm::tlm_generic_payload& transaction)
{
	const DramExtension& extension = DramExtension::getExtension(&transaction);
	Bank bank = extension.getBank();
	Row row = extension.getRow();

	CommandSequence result;

	if (!controllerState.bankStates.rowBufferIsOpen(bank))
	{
		return getBankMissCommandSequence(transaction);
	}
	else if (controllerState.bankStates.getRowInRowBuffer(bank) != row)
	{
		return getRowMissCommandSequence(transaction);
	}
	else
	{
		return getRowHitCommandSequence(transaction);
	}
}

CommandSequence CommandSequenceGenerator::generateCommandSequence(
		tlm::tlm_generic_payload* transaction)
{
	return generateCommandSequence(*transaction);
}

CommandSequence CommandSequenceGenerator::getBankMissCommandSequence(tlm::tlm_generic_payload& transaction)
{
	vector<Command> result;
	result.push_back(Activate);
	result.push_back(getReadWriteCommand(transaction));
	return result;
}

CommandSequence CommandSequenceGenerator::getRowMissCommandSequence(tlm::tlm_generic_payload& transaction)
{
	vector<Command> result;
	result.push_back(Precharge);
	result.push_back(Activate);
	result.push_back(getReadWriteCommand(transaction));
	return result;
}

CommandSequence CommandSequenceGenerator::getRowHitCommandSequence(tlm::tlm_generic_payload& transaction)
{
	vector<Command> result;
	result.push_back(getReadWriteCommand(transaction));
	return result;
}

Command CommandSequenceGenerator::getReadWriteCommand(tlm::tlm_generic_payload& transaction)
{
	if (transaction.get_command() == tlm::TLM_READ_COMMAND)
	{
		//TODO READA
		return Read;
	}
	else
	{
		return Write;
	}
}

} /* namespace controller */