/*

* Copyright (c) 2008 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:  Battery Level sensor implementation

*

*/

#include <hwrmpowerstatesdkpskeys.h>

#include <e32math.h>

#include "cpsbatterychargesensor.h"

#include "csensorproperties.h"

#include "logger.h"

_LIT(KBatteryLevelSensorDescriptionPart1,

     "battery_charge#"

     L"device#"

     L"device#"

     L"Nokia#"

     L"description=");

_LIT(KBatteryLevelSensorDescriptionPart2,

     "#model=Nokia#"

     L"connectiontype=1#"

     L"1#" // isAvailable

     L"1#" // channel count

     L"battery_charge#" // channel name. for single channel sensors should be same as model

     L"0.1429#" // accuracy, 7 steps (0-7)

     L"2#" // data type. here TYPE_INT

     L"0#" // scale. here zero (means that scaling is not used)

     L"%#" // unit. percent

     L"1#" // measurement range count

     L"0#" // smallest measurable value

     L"100#" // largest measurable value

     L"14.29#" // measurement resolution

     L"@ch_end#");  // channel terminator constant

const TInt KPollInterval = 100000; // 0.1 sec

const TReal KInterpretMultiplier = 14.29f;

CPSBatteryChargeSensor* CPSBatteryChargeSensor::NewL()

{

    JELOG2(ESensor);

    CPSBatteryChargeSensor* self = new(ELeave)CPSBatteryChargeSensor();

    CleanupStack::PushL(self);

    self->ConstructL(KPSUidHWRMPowerState, KHWRMBatteryLevel);

    CleanupStack::Pop(); // self

    return self;

}

CPSBatteryChargeSensor::CPSBatteryChargeSensor()

        : CPSSensorBase(KPollInterval)

{

    JELOG2(ESensor);

}

CPSBatteryChargeSensor::~CPSBatteryChargeSensor()

{

}

HBufC* CPSBatteryChargeSensor::CreateDescriptionLC()

{

    JELOG2(ESensor);

    HBufC* desc = HBufC::NewLC(KMaxSensorDescriptionLength);

    TPtr desPtr = desc->Des();

    desPtr.Append(KBatteryLevelSensorDescriptionPart1);

    desPtr.Append(SensorProperties::GetPropertyString(KSensorDescription,

                  EBatteryChargeSensor));

    desPtr.Append(KBatteryLevelSensorDescriptionPart2);

    return desc;

}

CSensorBase* CPSBatteryChargeSensor::DuplicateL()

{

    JELOG2(ESensor);

    return NewL();

}

TReal CPSBatteryChargeSensor::InterpretValue(TReal aValue)

{

    JELOG2(ESensor);

    if (aValue > 0)

    {

        TReal value = KInterpretMultiplier * aValue;

        TInt32 retVal;

        Math::Round(value, value, 0);

        Math::Int(retVal, value);

        return retVal;

    }

    else

    {

        return aValue;

    }

}