134 lines
3.5 KiB
C++
134 lines
3.5 KiB
C++
#include "CANSignal.h"
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#include "defines.h"
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#include <QtEndian>
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CCANSignal::CCANSignal():
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mRawValue(0),
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mPhysicalValue(0.0)
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{
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mEncoding = CAN_SIGNAL_ENCODING_INVALID;
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}
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int CCANSignal::ComputeNewSignalValue(quint64 NewValue, quint16 MessageSize)
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{
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if(mEncoding == CAN_SIGNAL_ENCODING_INTEL)
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{
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mRawValue = qFromBigEndian(NewValue);
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// mRawValue = NewValue;
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mRawValue >>= mStartBit;
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quint64 mask = 1;
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mask <<= mSignalSize;
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mask -= 1;
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mRawValue &= mask;
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}
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else if(mEncoding == CAN_SIGNAL_ENCODING_MOTOROLA)
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{
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mRawValue = NewValue;
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int StartIndex = mStartBit - (mStartBit % 8) + 7 - (mStartBit % 8);
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int shift = ((MessageSize * 8) - StartIndex -1);
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mRawValue >>= shift;
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quint64 mask = 1;
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mask <<= mSignalSize;
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mask -= 1;
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mRawValue &= mask;
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}
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else
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{
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//TODO: À faire!!!
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return RET_GENERAL_ERROR;
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}
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//JFM 2023-06-13 - Ajout casting des variables en fonction du data size.
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//L'idée c'est de contenir la valeur physique dans un double, ce qui permet de ne pas avoir à gérer le type
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//à chaque fois qu'on accède à la donnée. Mais pour que ça marche, il faut initialiser ce double comme il faut
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//en castant en fonction de la taille et du signe de la donnée
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qint64 SignedRawValue = 0;
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if(mSignalSize <= 8)
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{
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if(mValueType == CAN_SIGNAL_TYPE_SIGNED_INT)
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{
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SignedRawValue = (double)((qint8)mRawValue);
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}
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else
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{
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SignedRawValue = (double)((quint8)mRawValue);
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}
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}
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else if(mSignalSize <= 16)
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{
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if(mValueType == CAN_SIGNAL_TYPE_SIGNED_INT)
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{
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SignedRawValue = (double)((qint16)mRawValue);
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}
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else
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{
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SignedRawValue = (double)((quint16)mRawValue);
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}
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// qint16 RawShort = (qint16)mRawValue;
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// SignedRawValue = (double)RawShort;
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}
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else if(mSignalSize <= 32)
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{
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if(mValueType == CAN_SIGNAL_TYPE_SIGNED_INT)
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{
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SignedRawValue = (double)((qint32)mRawValue);
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}
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else
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{
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SignedRawValue = (double)((quint32)mRawValue);
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}
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//SignedRawValue = (signed)mRawValue;
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}
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else
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{
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if(mValueType == CAN_SIGNAL_TYPE_SIGNED_INT)
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{
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SignedRawValue = (double)((signed)mRawValue);
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}
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else
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{
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SignedRawValue = (double)(mRawValue);
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}
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}
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mPhysicalValue = (double)SignedRawValue;
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mPhysicalValue *= mValueFactor;
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mPhysicalValue += mValueOffset;
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//JFM 2023-06-13 tentative de corriger le casting avec la vraie patente
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//mPhysicalValue = ((signed) mRawValue * mValueFactor) + mValueOffset;
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return RET_OK;
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}
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CCANSignal& CCANSignal::operator=(const CCANSignal &source)
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{
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if(&source == this)
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{
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return *this;
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}
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qDebug("CANSignal Equal operator");
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this->mSignalName = source.mSignalName;
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this->mSignalComment = source.mSignalComment;
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this->mEncoding = source.mEncoding;
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this->mMultiplexing = source. mMultiplexing;
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this->mStartBit = source. mStartBit;
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this->mSignalSize = source. mSignalSize;
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this->mValueType = source. mValueType;
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this->mValueFactor = source.mValueFactor;
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this->mValueOffset = source. mValueOffset;
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this->mMinValue = source.mMinValue;
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this->mMaxValue = source.mMaxValue;
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this->mSignalUnit = source.mSignalUnit;
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return *this;
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}
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