1 /*

     2 * Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

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

     6 * which accompanies this distribution, and is available

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

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:  Charger state sensor implementation

    15 *

    16 */

    17 

    18 #include <hwrmpowerstatesdkpskeys.h>

    19 #include "cpschargerstatesensor.h"

    20 #include "csensorproperties.h"

    21 #include "logger.h"

    22 

    23 _LIT(KChargerStateSensorDescriptionPart1,

    24      "charger_state#"

    25      L"device#"

    26      L"device#"

    27      L"Nokia#"

    28      L"description=");

    29 

    30 _LIT(KChargerStateSensorDescriptionPart2,

    31      "#model=Nokia#"

    32      L"connectiontype=1#"

    33      L"1#" // isAvailable

    34      L"1#" // channel count

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

    36      L"0#" // accuracy, exact

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

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

    39      L"boolean#" // unit. Charger is attached or not attached

    40      L"1#" // measurement range count

    41      L"0#" // smallest measurable value

    42      L"1#" // largest measurable value

    43      L"1#" // measurement resolution

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

    45 

    46 const TInt KPollInterval = 100000; // 0.1 sec

    47 

    48 CPSChargerStateSensor* CPSChargerStateSensor::NewL()

    49 {

    50     JELOG2(ESensor);

    51     CPSChargerStateSensor* self = new(ELeave)CPSChargerStateSensor();

    52     CleanupStack::PushL(self);

    53     self->ConstructL(KPSUidHWRMPowerState, KHWRMChargingStatus);

    54     CleanupStack::Pop(); // self

    55     return self;

    56 }

    57 

    58 CPSChargerStateSensor::CPSChargerStateSensor()

    59         : CPSSensorBase(KPollInterval)

    60 {

    61     JELOG2(ESensor);

    62 }

    63 

    64 CPSChargerStateSensor::~CPSChargerStateSensor()

    65 {

    66     JELOG2(ESensor);

    67 }

    68 

    69 HBufC* CPSChargerStateSensor::CreateDescriptionLC()

    70 {

    71     JELOG2(ESensor);

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

    73     TPtr desPtr = desc->Des();

    74     desPtr.Append(KChargerStateSensorDescriptionPart1);

    75     desPtr.Append(SensorProperties::GetPropertyString(KSensorDescription,

    76                   EChargerStateSensor));

    77     desPtr.Append(KChargerStateSensorDescriptionPart2);

    78     return desc;

    79 }

    80 

    81 CSensorBase* CPSChargerStateSensor::DuplicateL()

    82 {

    83     JELOG2(ESensor);

    84     return NewL();

    85 }

    86 

    87 TReal CPSChargerStateSensor::InterpretValue(TReal aValue)

    88 {

    89     JELOG2(ESensor);

    90     // Return 1 if aValue is bigger than 0. Return 0 if 0.

    91     // Negative aValue is an error code and is returned as is.

    92     return aValue > 0 ? 1 : aValue;

    93 }

    94