knx/group_object.cpp

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2018-04-09 22:30:23 +02:00
#include "group_object.h"
#include "bits.h"
#include "string.h"
#include "datapoint_types.h"
#include "group_object_table_object.h"
GroupObject::GroupObject(uint8_t size)
{
_data = new uint8_t[size];
_commFlag = Ok;
_table = 0;
_dataLength = size;
updateHandler = 0;
}
GroupObject::~GroupObject()
{
delete[] _data;
}
bool GroupObject::responseUpdateEnable()
{
if (!_table)
return false;
return bitRead(ntohs(_table->_tableData[_asap]), 15) > 0;
}
bool GroupObject::transmitEnable()
{
if (!_table)
return false;
return bitRead(ntohs(_table->_tableData[_asap]), 14) > 0 ;
}
bool GroupObject::valueReadOnInit()
{
if (!_table)
return false;
return bitRead(ntohs(_table->_tableData[_asap]), 13) > 0;
}
bool GroupObject::writeEnable()
{
if (!_table)
return false;
return bitRead(ntohs(_table->_tableData[_asap]), 12) > 0 ;
}
bool GroupObject::readEnable()
{
if (!_table)
return false;
return bitRead(ntohs(_table->_tableData[_asap]), 11) > 0;
}
bool GroupObject::communicationEnable()
{
if (!_table)
return false;
return bitRead(ntohs(_table->_tableData[_asap]), 10) > 0;
}
Priority GroupObject::priority()
{
if (!_table)
return LowPriority;
return (Priority)((ntohs(_table->_tableData[_asap]) >> 6) & (3 << 2)) ;
}
uint8_t* GroupObject::valueRef()
{
return _data;
}
uint16_t GroupObject::asap()
{
return _asap;
}
size_t GroupObject::goSize()
{
size_t size = sizeInTelegram();
if (size == 0)
return 1;
return size;
}
// see knxspec 3.5.1 p. 178
size_t GroupObject::asapValueSize(uint8_t code)
{
if (code < 7)
return 0;
if (code < 8)
return 1;
if (code < 11 || (code > 20 && code < 255))
return code - 6;
switch (code)
{
case 11:
return 6;
case 12:
return 8;
case 13:
return 10;
case 14:
return 14;
case 15:
return 5;
case 16:
return 7;
case 17:
return 9;
case 18:
return 11;
case 19:
return 12;
case 20:
return 13;
case 255:
return 252;
}
return -1;
}
ComFlag GroupObject::commFlag()
{
return _commFlag;
}
void GroupObject::commFlag(ComFlag value)
{
_commFlag = value;
}
int32_t GroupObject::objectReadFloat()
{
uint16_t dptValue = getWord(_data);
return dptFromFloat(dptValue);
}
bool GroupObject::objectReadBool()
{
return _data[0] > 0;
}
void GroupObject::requestObjectRead()
{
_commFlag = ReadRequest;
}
void GroupObject::objectWritten()
{
_commFlag = WriteRequest;
}
void GroupObject::objectWriteFloat(int32_t value)
{
uint16_t dptValue = dptToFloat(value);
pushWord(dptValue, _data);
objectWritten();
}
void GroupObject::objectUpdateFloat(int32_t value)
{
uint16_t dptValue = dptToFloat(value);
pushWord(dptValue, _data);
_commFlag = cfUpdate;
}
size_t GroupObject::valueSize()
{
return _dataLength;
}
size_t GroupObject::sizeInTelegram()
{
uint8_t code = lowByte(ntohs(_table->_tableData[_asap]));
return asapValueSize(code);
}