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S7200Uint8Trans.cxx
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S7200Uint8Trans.cxx
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/** © Copyright 2023 CERN
*
* This software is distributed under the terms of the
* GNU Lesser General Public Licence version 3 (LGPL Version 3),
* copied verbatim in the file “LICENSE”
*
* In applying this licence, CERN does not waive the privileges
* and immunities granted to it by virtue of its status as an
* Intergovernmental Organization or submit itself to any jurisdiction.
*
* Author: Adrien Ledeul (HSE), Richi Dubey (HSE)
*
**/
#include <cstring>
#include "S7200Uint8Trans.hxx"
#include "S7200HWMapper.hxx"
#include "Common/Logger.hxx"
#include <cmath>
#include <IntegerVar.hxx>
namespace Transformations{
TransformationType S7200Uint8Trans::isA() const {
return (TransformationType) S7200DrvUint8TransType;
}
TransformationType S7200Uint8Trans::isA(TransformationType type) const {
if (type == isA())
return type;
else
return Transformation::isA(type);
}
Transformation *S7200Uint8Trans::clone() const {
return new S7200Uint8Trans;
}
int S7200Uint8Trans::itemSize() const {
return size;
}
VariableType S7200Uint8Trans::getVariableType() const {
return INTEGER_VAR;
}
PVSSboolean S7200Uint8Trans::toPeriph(PVSSchar *buffer, PVSSuint len, const Variable &var, const PVSSuint subix) const {
if(var.isA() != INTEGER_VAR){
ErrHdl::error(ErrClass::PRIO_SEVERE, // Data will be lost
ErrClass::ERR_PARAM, // Wrong parametrization
ErrClass::UNEXPECTEDSTATE, // Nothing else appropriate
"S7200Uint8Trans", "toPeriph", // File and function name
"Wrong variable type" // Unfortunately we don't know which DP
);
return PVSS_FALSE;
}
// this one is a bit special as the number is handled by wincc oa as int32, but we handle it as 8 bit unsigned integer
// thus any info above the 8 first bits is lost
*(reinterpret_cast<uint8_t *>(buffer + (subix * size))) = (uint8_t)(reinterpret_cast<const IntegerVar &>(var)).getValue();
return PVSS_TRUE;
}
VariablePtr S7200Uint8Trans::toVar(const PVSSchar *buffer, const PVSSuint dlen, const PVSSuint subix) const {
if(buffer == NULL || dlen%size > 0 || dlen < size*(subix+1)){
ErrHdl::error(ErrClass::PRIO_SEVERE, // Data will be lost
ErrClass::ERR_PARAM, // Wrong parametrization
ErrClass::UNEXPECTEDSTATE, // Nothing else appropriate
"S7200Uint8Trans", "toVar", // File and function name
"Null buffer pointer or wrong length: " + CharString(dlen) // Unfortunately we don't know which DP
);
return NULL;
}
// this one is a bit special as the number is handled by wincc oa as int32, but we handle it as 8 bit unsigned integer
return new IntegerVar((int32_t)*reinterpret_cast<const uint8_t*>(buffer + (subix * size)));
}
}//namespace