/*
 * PowerDownManagerTimeout.cpp
 *
 *  Created on: May 5, 2014
 *      Author: jungma
 */

#include "PowerDownManagerTimeout.h"
#include "../ControllerCore.h"
#include "../../../common/Utils.h"
#include "../TimingCalculation.h"

using namespace tlm;

namespace core {

PowerDownManagerTimeout::PowerDownManagerTimeout(ControllerCore& controller): controller(controller)
{
    for (Bank bank : controller.getBanks())
    {
        setUpDummy(powerDownPayloads[bank], bank);
    }
}

PowerDownManagerTimeout::~PowerDownManagerTimeout()
{
    // TODO Auto-generated destructor stub
}

void PowerDownManagerTimeout::sleep(Bank bank, sc_time time)
{
    if(canSleep() && !isInPowerDown() && (time - controller.state.getLastScheduledCommand().getEnd()) >= Configuration::getInstance().getPowerDownTimeout())
    {
        PowerDownState newState;
        if(Configuration::getInstance().PowerDownMode == EPowerDownMode::TimeoutPDN)
        {
            newState = controller.state.rowBufferStates.allRowBuffersAreClosed() ? PowerDownState::PDNPrecharge : PowerDownState::PDNActive;
        }
        else
        {
            newState = PowerDownState::PDNSelfRefresh;
        }

        Command cmd = IPowerDownManager::getSleepCommand(newState);
        ScheduledCommand pdn(cmd, time, getMinExecutionTimeForPowerDownCmd(cmd),
                             DramExtension::getExtension(powerDownPayloads[bank]));

        controller.getCommandChecker(cmd).delayToSatisfyConstraints(pdn);

        if (controller.refreshManager->hasCollision(pdn))
        {
            return;
        }
        else
        {
            setPowerDownState(newState);
            sendPowerDownPayloads(pdn);
        }
    }
}

bool PowerDownManagerTimeout::isInPowerDown()
{
    return (powerDownState == PowerDownState::PDNActive || powerDownState == PowerDownState::PDNPrecharge
            || powerDownState == PowerDownState::PDNSelfRefresh);
}

void PowerDownManagerTimeout::setPowerDownState(PowerDownState state)
{
    powerDownState = state;
    DebugManager::getInstance().printDebugMessage(PowerDownManagerBankwise::senderName,
            "Is now in state " + powerDownStateToString(powerDownState) + " on all banks");
}

void PowerDownManagerTimeout::wakeUp(Bank bank, sc_time time)
{
    if (isInPowerDown()) //Request wakes up power down
    {
        Command cmd = IPowerDownManager::getWakeUpCommand(powerDownState);
        ScheduledCommand pdn(cmd, time, getExecutionTime(cmd, powerDownPayloads[bank]),
                DramExtension::getExtension(powerDownPayloads[bank]));
        controller.getCommandChecker(cmd).delayToSatisfyConstraints(pdn);

        if (cmd == Command::SREFX)
            controller.refreshManager->reInitialize(bank, pdn.getEnd());

        setPowerDownState(PowerDownState::Awake);
        sendPowerDownPayloads(pdn);
    }
}

void PowerDownManagerTimeout::wakeUpForRefresh(Bank bank, sc_time time)
{
    if (isInPowerDown())
    {
        Command cmd = IPowerDownManager::getWakeUpCommand(powerDownState);
        ScheduledCommand pdn(cmd, time, getExecutionTime(cmd, powerDownPayloads[bank]),
                DramExtension::getExtension(powerDownPayloads[bank]));

        setPowerDownState(PowerDownState::AwakeForRefresh);
        sendPowerDownPayloads(pdn);
    }
}

void PowerDownManagerTimeout::triggerSleep(Bank /*bank*/, sc_time time)
{
    if(canSleep() && !isInPowerDown())
    {
        controller.wrapper.send(PDNTrigger, time + controller.config.getPowerDownTimeout(), powerDownPayloads[Bank(0)]);
    }
}

bool PowerDownManagerTimeout::isInSelfRefresh(Bank /*bank*/)
{
    return powerDownState == PowerDownState::PDNSelfRefresh;
}

bool PowerDownManagerTimeout::canSleep()
{
    for (Bank bank : controller.getBanks())
    {
        if (!controller.numberOfPayloads[bank] == 0)
            return false;
    }
    return true;
}

void PowerDownManagerTimeout::sendPowerDownPayloads(ScheduledCommand& cmd)
{
    controller.state.bus.moveCommandToNextFreeSlot(cmd);
    for (Bank bank : controller.getBanks())
    {
        tlm_generic_payload& payloadToSend = powerDownPayloads[bank];
        ScheduledCommand pdnToSend(cmd.getCommand(), cmd.getStart(), cmd.getExecutionTime(),
                DramExtension::getExtension(payloadToSend));
        controller.state.change(pdnToSend);
        controller.wrapper.send(pdnToSend, payloadToSend);
    }
}

}