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reimplement dpt16

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This commit is contained in:
Thomas Kunze 2024-09-22 17:28:26 +02:00
parent bf573d8253
commit e67369caf1
7 changed files with 114 additions and 29 deletions
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2
src/CMakeLists.txt
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@ -68,6 +68,8 @@ set(SOURCES
./knx/group_object/dpt/dpt14.h
./knx/group_object/dpt/dpt15.cpp
./knx/group_object/dpt/dpt15.h
./knx/group_object/dpt/dpt16.cpp
./knx/group_object/dpt/dpt16.h
./knx/group_object/dpt/dptconvert.cpp
./knx/group_object/dpt/dptconvert.h
./knx/group_object/group_object.cpp

2
src/knx/group_object/dpt/dpt.h
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@ -3,8 +3,6 @@
#include "../group_object.h"
namespace Knx
{
#define DPT_String_ASCII Dpt(16, 0)
#define DPT_String_8859_1 Dpt(16, 1)
#define DPT_SceneNumber Dpt(17, 1)
#define DPT_SceneControl Dpt(18, 1)
#define DPT_DateTime Dpt(19, 1)

78
src/knx/group_object/dpt/dpt16.cpp Normal file
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@ -0,0 +1,78 @@
#include "dpt16.h"
#include "dptconvert.h"
#include <cstring>
Knx::Dpt16::Dpt16()
{
memset(_value, 0, 15);
}
Knx::Dpt16::Dpt16(const char* value) : Dpt16()
{
this->value(value);
}
Knx::Go_SizeCode Knx::Dpt16::size() const
{
return Go_14_Octets;
}
void Knx::Dpt16::encode(uint8_t* data) const
{
uint8_t val = _value[0];
for (int n = 0; n < 14; n++)
{
if (val)
val = _value[n]; //string terminator 0x00 will stop further assignments and init the remainig payload with zero
unsigned8ToPayload(data, n, val, 0xff);
}
}
bool Knx::Dpt16::decode(uint8_t* data)
{
_value[14] = '\0';
for (int n = 0; n < 14; ++n)
{
_value[n] = signed8FromPayload(data, n);
}
return true;
}
const char* Knx::Dpt16::value() const
{
return _value;
}
void Knx::Dpt16::value(const char* value)
{
strncpy(_value, value, 14);
_value[14] = 0;
}
Knx::DPT_String_ASCII::DPT_String_ASCII() : Dpt16() {}
Knx::DPT_String_ASCII::DPT_String_ASCII(const char* value) : Dpt16(value) {}
bool Knx::DPT_String_ASCII::decode(uint8_t* data)
{
_value[14] = '\0';
for (int n = 0; n < 14; ++n)
{
_value[n] = signed8FromPayload(data, n);
if ((_value[n] & 0x80))
{
_value[0] = 0;
return false;
}
}
return true;
}

32
src/knx/group_object/dpt/dpt16.h Normal file
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@ -0,0 +1,32 @@
#pragma once
#include "dpt.h"
namespace Knx
{
class Dpt16: public Dpt
{
enum ReadDirectionValue { LeftToRight = 0, RightToLeft = 1};
public:
Dpt16();
Dpt16(const char* value);
Go_SizeCode size() const override;
void encode(uint8_t* data) const override;
bool decode(uint8_t* data) override;
const char* value() const;
void value(const char* value);
protected:
// one character more than the dpt to store \0
char _value[15];
};
typedef Dpt16 DPT_String_8859_1;
class DPT_String_ASCII: public Dpt16
{
public:
DPT_String_ASCII();
DPT_String_ASCII(const char* value);
bool decode(uint8_t* data) override;
};
}

24
src/knx/group_object/dpt/dptconvert.cpp
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@ -18,10 +18,6 @@ namespace Knx
{
if (payload_length > 0)
{
// DPT 16.* - String
if (datatype.mainGroup == 16 && datatype.subGroup <= 1 && !datatype.index)
return busValueToString(payload, payload_length, datatype, value);
// DPT 17.* - Scene Number
if (datatype.mainGroup == 17 && datatype.subGroup == 1 && !datatype.index)
return busValueToScene(payload, payload_length, datatype, value);
@ -104,10 +100,6 @@ namespace Knx
int KNX_Encode_Value(const KNXValue& value, uint8_t* payload, size_t payload_length, const Dpt& datatype)
{
// DPT 16.* - String
if (datatype.mainGroup == 16 && datatype.subGroup <= 1 && !datatype.index)
return valueToBusValueString(value, payload, payload_length, datatype);
// DPT 17.* - Scene Number
if (datatype.mainGroup == 17 && datatype.subGroup == 1 && !datatype.index)
return valueToBusValueScene(value, payload, payload_length, datatype);
@ -598,22 +590,6 @@ namespace Knx
return true;
}
int valueToBusValueString(const KNXValue& value, uint8_t* payload, size_t payload_length, const Dpt& datatype)
{
const char* strValue = value;
uint8_t val = strValue[0];
for (int n = 0; n < 14; n++)
{
if (val)
val = strValue[n]; //string terminator 0x00 will stop further assignments and init the remainig payload with zero
unsigned8ToPayload(payload, n, val, 0xff);
}
return true;
}
int valueToBusValueScene(const KNXValue& value, uint8_t* payload, size_t payload_length, const Dpt& datatype)
{
if ((int64_t)value < INT64_C(0) || (int64_t)value > INT64_C(63))

2
src/knx/group_object/dpt/dptconvert.h
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@ -49,7 +49,6 @@ namespace Knx
//KNX to internal
int busValueToUnsigned32(const uint8_t* payload, size_t payload_length, const Dpt& datatype, KNXValue& value);
int busValueToSigned32(const uint8_t* payload, size_t payload_length, const Dpt& datatype, KNXValue& value);
int busValueToString(const uint8_t* payload, size_t payload_length, const Dpt& datatype, KNXValue& value);
int busValueToScene(const uint8_t* payload, size_t payload_length, const Dpt& datatype, KNXValue& value);
int busValueToSceneControl(const uint8_t* payload, size_t payload_length, const Dpt& datatype, KNXValue& value);
int busValueToSceneInfo(const uint8_t* payload, size_t payload_length, const Dpt& datatype, KNXValue& value);
@ -71,7 +70,6 @@ namespace Knx
//Internal to KNX
int valueToBusValueUnsigned32(const KNXValue& value, uint8_t* payload, size_t payload_length, const Dpt& datatype);
int valueToBusValueSigned32(const KNXValue& value, uint8_t* payload, size_t payload_length, const Dpt& datatype);
int valueToBusValueString(const KNXValue& value, uint8_t* payload, size_t payload_length, const Dpt& datatype);
int valueToBusValueScene(const KNXValue& value, uint8_t* payload, size_t payload_length, const Dpt& datatype);
int valueToBusValueSceneControl(const KNXValue& value, uint8_t* payload, size_t payload_length, const Dpt& datatype);
int valueToBusValueSceneInfo(const KNXValue& value, uint8_t* payload, size_t payload_length, const Dpt& datatype);

1
src/knx/group_object/dpt/dpts.h
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@ -15,3 +15,4 @@
#include "dpt13.h"
#include "dpt14.h"
#include "dpt15.h"
#include "dpt16.h"