author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Wed, 23 Jun 2010 19:08:38 +0300 | |
changeset 14 | 6fbed849b4f4 |
parent 11 | 06b8e2af4411 |
permissions | -rw-r--r-- |
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/**************************************************************************** |
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** |
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** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). |
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** All rights reserved. |
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** Contact: Nokia Corporation (qt-info@nokia.com) |
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** |
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** This file is part of the Qt Mobility Components. |
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** |
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** $QT_BEGIN_LICENSE:LGPL$ |
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** No Commercial Usage |
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** This file contains pre-release code and may not be distributed. |
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** You may use this file in accordance with the terms and conditions |
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** contained in the Technology Preview License Agreement accompanying |
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** this package. |
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** |
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** GNU Lesser General Public License Usage |
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** Alternatively, this file may be used under the terms of the GNU Lesser |
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** General Public License version 2.1 as published by the Free Software |
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** Foundation and appearing in the file LICENSE.LGPL included in the |
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** packaging of this file. Please review the following information to |
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** ensure the GNU Lesser General Public License version 2.1 requirements |
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. |
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** |
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** In addition, as a special exception, Nokia gives you certain additional |
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** rights. These rights are described in the Nokia Qt LGPL Exception |
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. |
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** |
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** If you have questions regarding the use of this file, please contact |
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** Nokia at qt-info@nokia.com. |
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** |
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** |
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** |
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** |
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** |
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** |
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** |
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** |
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** $QT_END_LICENSE$ |
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** |
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****************************************************************************/ |
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|
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// Internal Headers |
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#include "accelerometersym.h" |
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#include <sensrvgeneralproperties.h> |
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|
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#define GRAVITATION_CONSTANT 9.812865328 //According to wikipedia link http://en.wikipedia.org/wiki/Standard_gravity |
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/** |
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* set the id of the accelerometer sensor |
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*/ |
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char const * const CAccelerometerSensorSym::id("sym.accelerometer"); |
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/** |
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* Factory function, this is used to create the accelerometer object |
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* @return CAccelerometerSensorSym if successful, leaves on failure |
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*/ |
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CAccelerometerSensorSym* CAccelerometerSensorSym::NewL(QSensor *sensor) |
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{ |
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CAccelerometerSensorSym* self = new (ELeave) CAccelerometerSensorSym(sensor); |
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CleanupStack::PushL(self); |
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self->ConstructL(); |
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CleanupStack::Pop(); |
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return self; |
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} |
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/** |
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* Destructor |
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* Closes the backend resources |
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*/ |
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CAccelerometerSensorSym::~CAccelerometerSensorSym() |
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{ |
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// Release the backend resources |
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Close(); |
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} |
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/** |
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* Default constructor |
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*/ |
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CAccelerometerSensorSym::CAccelerometerSensorSym(QSensor *sensor):CSensorBackendSym(sensor), |
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iScaleRange(0), |
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iUnit(0) |
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{ |
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setReading<QAccelerometerReading>(&iReading); |
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iBackendData.iSensorType = KSensrvChannelTypeIdAccelerometerXYZAxisData; |
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//Disable property listening |
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SetListening(ETrue, EFalse); |
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} |
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void CAccelerometerSensorSym::start() |
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{ |
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TSensrvProperty dataFormatProperty; |
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TInt err; |
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CSensorBackendSym::start(); |
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TRAP(err, iBackendData.iSensorChannel->GetPropertyL(KSensrvPropIdChannelDataFormat, ESensrvSingleProperty, dataFormatProperty)); |
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if(err == KErrNone) |
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{ |
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TInt dataFormat; |
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dataFormatProperty.GetValue(dataFormat); |
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if(dataFormat == ESensrvChannelDataFormatScaled) |
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{ |
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TSensrvProperty scaleRangeProperty; |
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TRAP(err, iBackendData.iSensorChannel->GetPropertyL(KSensrvPropIdScaledRange, KSensrvItemIndexNone, scaleRangeProperty)); |
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103 |
if(err == KErrNone) |
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104 |
{ |
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if(scaleRangeProperty.GetArrayIndex() == ESensrvSingleProperty) |
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|
106 |
{ |
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if(scaleRangeProperty.PropertyType() == ESensrvIntProperty) |
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108 |
{ |
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scaleRangeProperty.GetMaxValue(iScaleRange); |
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110 |
} |
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else if(scaleRangeProperty.PropertyType() == ESensrvRealProperty) |
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112 |
{ |
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TReal realScale; |
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scaleRangeProperty.GetMaxValue(realScale); |
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iScaleRange = realScale; |
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116 |
} |
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117 |
} |
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else if(scaleRangeProperty.GetArrayIndex() == ESensrvArrayPropertyInfo) |
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119 |
{ |
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120 |
TInt index; |
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121 |
if(scaleRangeProperty.PropertyType() == ESensrvIntProperty) |
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122 |
{ |
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scaleRangeProperty.GetValue(index); |
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124 |
} |
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else if(scaleRangeProperty.PropertyType() == ESensrvRealProperty) |
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126 |
{ |
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127 |
TReal realIndex; |
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scaleRangeProperty.GetValue(realIndex); |
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index = realIndex; |
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130 |
} |
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131 |
TRAP(err, iBackendData.iSensorChannel->GetPropertyL(KSensrvPropIdScaledRange, KSensrvItemIndexNone, index, scaleRangeProperty)); |
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132 |
if(err == KErrNone) |
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133 |
{ |
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134 |
if(scaleRangeProperty.PropertyType() == ESensrvIntProperty) |
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135 |
{ |
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136 |
scaleRangeProperty.GetMaxValue(iScaleRange); |
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137 |
} |
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138 |
else if(scaleRangeProperty.PropertyType() == ESensrvRealProperty) |
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139 |
{ |
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140 |
TReal realScaleRange; |
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141 |
scaleRangeProperty.GetMaxValue(realScaleRange); |
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iScaleRange = realScaleRange; |
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143 |
} |
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144 |
} |
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145 |
} |
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146 |
} |
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147 |
} |
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148 |
} |
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149 |
} |
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150 |
|
4
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151 |
/* |
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152 |
* RecvData is used to retrieve the sensor reading from sensor server |
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* It is implemented here to handle accelerometer sensor specific |
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* reading data and provides conversion and utility code |
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155 |
*/ |
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void CAccelerometerSensorSym::RecvData(CSensrvChannel &aChannel) |
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157 |
{ |
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TPckg<TSensrvAccelerometerAxisData> accelerometerpkg( iData ); |
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TInt ret = aChannel.GetData( accelerometerpkg ); |
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if(KErrNone != ret) |
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161 |
{ |
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162 |
// If there is no reading available, return without setting |
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163 |
return; |
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164 |
} |
5
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165 |
TReal x = iData.iAxisX; |
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166 |
TReal y = iData.iAxisY; |
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167 |
TReal z = iData.iAxisZ; |
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168 |
//Converting unit to m/s^2 |
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169 |
if(iScaleRange && iUnit == ESensevChannelUnitAcceleration) |
5
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170 |
{ |
14
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171 |
qoutputrangelist rangeList = sensor()->outputRanges(); |
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172 |
TReal maxValue = rangeList[sensor()->outputRange()].maximum; |
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173 |
x = (x/iScaleRange) * maxValue; |
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174 |
y = (y/iScaleRange) * maxValue; |
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175 |
z = (z/iScaleRange) * maxValue; |
5
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|
176 |
} |
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177 |
else if(iUnit == ESensrvChannelUnitGravityConstant) |
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178 |
{ |
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179 |
//conversion is yet to done |
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180 |
} |
4
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181 |
// Get a lock on the reading data |
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182 |
iBackendData.iReadingLock.Wait(); |
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183 |
// Set qt mobility accelerometer reading with data from sensor server |
5
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184 |
iReading.setX(x); |
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185 |
iReading.setY(y); |
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186 |
iReading.setZ(z); |
4
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187 |
// Set the timestamp |
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188 |
iReading.setTimestamp(iData.iTimeStamp.Int64()); |
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189 |
// Release the lock |
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190 |
iBackendData.iReadingLock.Signal(); |
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|
191 |
} |
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|
192 |
|
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|
193 |
/** |
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|
194 |
* Second phase constructor |
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195 |
* Initialize the backend resources |
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196 |
*/ |
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|
197 |
void CAccelerometerSensorSym::ConstructL() |
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198 |
{ |
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199 |
//Initialize the backend resources |
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200 |
InitializeL(); |
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|
201 |
|
14
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202 |
TInt err; |
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203 |
TSensrvProperty unitProperty; |
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Revision: 201023
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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204 |
TRAP(err, iBackendData.iSensorChannel->GetPropertyL(KSensrvPropIdChannelUnit, ESensrvSingleProperty, unitProperty)); |
5
453da2cfceef
Revision: 201017
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
4
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205 |
if(err == KErrNone) |
453da2cfceef
Revision: 201017
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
4
diff
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206 |
{ |
453da2cfceef
Revision: 201017
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
4
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207 |
unitProperty.GetValue(iUnit); |
453da2cfceef
Revision: 201017
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
4
diff
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208 |
} |
4
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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209 |
} |
90517678cc4f
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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210 |