/*

* Copyright (c) 2005 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description:  General Active Object offering asynchronous service

*

*/

#include "atcodec.h"

#include "btmcbattery.h"

#include "btmcphonestatus.h"

#include "debug.h"

#include <e32math.h>

const TInt8 KMaxPhoneStrength = 7;

const TInt8 KMaxHFPStrength = 5;

// -----------------------------------------------------------------------------

// CBtmcBattery::NewL

// -----------------------------------------------------------------------------

CBtmcBattery* CBtmcBattery::NewL(CBtmcPhoneStatus& aParent)

    {

    CBtmcBattery* self = CBtmcBattery::NewLC(aParent);

    CleanupStack::Pop(self);

    return self;

    }

// -----------------------------------------------------------------------------

// CBtmcBattery::NewLC

// -----------------------------------------------------------------------------

CBtmcBattery* CBtmcBattery::NewLC(CBtmcPhoneStatus& aParent)

    {

    CBtmcBattery* self = new (ELeave) CBtmcBattery(aParent);

    CleanupStack::PushL(self);

    self->ConstructL();

    return self;

    }

// -----------------------------------------------------------------------------

// CBtmcBattery::~CBtmcBattery

// -----------------------------------------------------------------------------

CBtmcBattery::~CBtmcBattery()

    {

    TRACE_FUNC_ENTRY

    Cancel();

    iProperty.Close();

    TRACE_FUNC_EXIT

    }

// -------------------------------------------------------------------------------

// CBtmcBattery::GoActive

// -------------------------------------------------------------------------------

void CBtmcBattery::GoActive()

    {

    TRACE_ASSERT(!IsActive(), KErrGeneral);

    iProperty.Subscribe(iStatus);

    SetActive();

    TRACE_FUNC

    }

// -------------------------------------------------------------------------------

// CBtmcBattery::RunL

// -------------------------------------------------------------------------------

void CBtmcBattery::RunL()

    {

    TRACE_FUNC_ENTRY

    if (iStatus == KErrNone)

        {    

        TInt temp = 0;

        TInt err = iProperty.Get(temp);

        if (!err)

            {

            ConvertToHFPScale(temp);

            iCharge = temp;

            TRACE_INFO((_L("iStatus %d, battery strength %d"), iStatus.Int(), temp))

            iParent.HandleBatteryChangeL(temp);            

            }

        GoActive();

        }

    else

        {

        TRACE_ERROR((_L("ERROR %d"), iStatus.Int()))

        }        

    TRACE_FUNC_EXIT

    }

// -------------------------------------------------------------------------------

// CBtmcBattery::DoCancel

// -------------------------------------------------------------------------------

void CBtmcBattery::DoCancel()

    {

    iProperty.Cancel();

    TRACE_FUNC

    }

// -------------------------------------------------------------------------------

// CBtmcBattery::RunError

// -------------------------------------------------------------------------------

TInt CBtmcBattery::RunError(TInt /*aErr*/)

    {

    iProperty.Close();

    TRACE_FUNC

    return KErrNone;

    }

// -----------------------------------------------------------------------------

// CBtmcBattery::CBtmcBattery

// -----------------------------------------------------------------------------

CBtmcBattery::CBtmcBattery(CBtmcPhoneStatus& aParent)

    : CActive(EPriorityNormal), iParent(aParent)

    {

    CActiveScheduler::Add(this);

    }

void CBtmcBattery::ConstructL()

    {

    TRACE_FUNC_ENTRY

    LEAVE_IF_ERROR(iProperty.Attach(KPSUidHWRMPowerState, KHWRMBatteryLevel));

    LEAVE_IF_ERROR(iProperty.Get(iCharge));

    ConvertToHFPScale(iCharge);

    TRACE_FUNC_EXIT

    }

void CBtmcBattery::ConvertToHFPScale(TInt &aStrength)

    {

    TReal result;

    Math::Round( result, TReal(TReal(KMaxHFPStrength)/TReal(KMaxPhoneStrength) *TReal(aStrength)),0);

    aStrength = TInt8(result);    

    }

TInt CBtmcBattery::GetBatteryCharge()

    {

    return iCharge;

    }

// End of File