Mirrors/knx
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first working version

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This commit is contained in:
Thomas Kunze 2018-09-07 23:25:16 +02:00
parent 96f8a1bffb
commit c0c6c99315
7 changed files with 78 additions and 55 deletions
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20
apdu.cpp
View File

@ -40,14 +40,14 @@ uint8_t APDU::length() const
void APDU::printPDU()
{
//Print.print("APDU: ");
//print.print(type(), HEX, 4);
//print.print(" ");
//print.print(_data[0] & 0x3, HEX, 2);
//for (uint8_t i = 1; i < length() + 1; ++i)
//{
// if (i) print.print(" ");
// print.print(_data[i], HEX, 2);
//}
//print.println();
_print("APDU: ");
_print(type(), HEX);
_print(" ");
_print(_data[0] & 0x3, HEX);
for (uint8_t i = 1; i < length() + 1; ++i)
{
if (i) _print(" ");
_print(_data[i], HEX);
}
_println();
}

11
bits.cpp
View File

@ -7,6 +7,17 @@ uint8_t* popByte(uint8_t& b, uint8_t* data)
return data;
}
void printHex(const char* suffix, const uint8_t *data, size_t length)
{
_print(suffix);
for (int i = 0; i < length; i++) {
if (data[i] < 0x10) { _print("0"); }
_print(data[i], HEX);
_print(" ");
}
_println();
}
uint8_t* popWord(uint16_t& w, uint8_t* data)
{
w = getWord(data);

5
bits.h
View File

@ -9,7 +9,7 @@
#define bitRead(val, bitno) (((val) >> (bitno)) & 1)
#elif ARDUINO_ARCH_SAMD
#include <Arduino.h>
#define htons(x) ( ((x)<<8) | (((x)>>8)&0xFF) )
#define htons(x) ( (((x)<<8)&0xFF00) | (((x)>>8)&0xFF) )
#define ntohs(x) htons(x)
#define htonl(x) ( ((x)<<24 & 0xFF000000UL) | \
((x)<< 8 & 0x00FF0000UL) | \
@ -35,4 +35,5 @@ uint8_t* pushWord(uint16_t w, uint8_t* data);
uint8_t* pushInt(uint32_t i, uint8_t* data);
uint8_t* pushByteArray(const uint8_t* src, uint32_t size, uint8_t* data);
uint16_t getWord(uint8_t* data);
uint32_t getInt(uint8_t* data);
uint32_t getInt(uint8_t* data);
void printHex(const char* suffix, const uint8_t *data, size_t length);

3
cemi_frame.cpp
View File

@ -71,13 +71,14 @@ uint16_t CemiFrame::telegramLengthtTP() const
void CemiFrame::fillTelegramTP(uint8_t* data)
{
uint16_t len = telegramLengthtTP();
if (frameType() == StandardFrame)
{
uint8_t octet5 = (_ctrl1[1] & 0xF0) | (_ctrl1[6] & 0x0F);
data[0] = _ctrl1[0]; //CTRL
memcpy(data + 1, _ctrl1 + 2, 4); // SA, DA
data[5] = octet5; // LEN; Hopcount, ..
memcpy(data + 6, _ctrl1 + 8, len - 7); // APDU
memcpy(data + 6, _ctrl1 + 7, len - 7); // APDU
}
else
{

22
data_link_layer.cpp
View File

@ -34,7 +34,7 @@ void DataLinkLayer::frameRecieved(CemiFrame& frame)
Priority priority = frame.priority();
NPDU& npdu = frame.npdu();
uint16_t ownAddr = _deviceObject.induvidualAddress();
if (source == ownAddr)
_deviceObject.induvidualAddressDuplication(true);
@ -48,11 +48,11 @@ void DataLinkLayer::frameRecieved(CemiFrame& frame)
if (addrType == GroupAddress && !_groupAddressTable.contains(destination))
return;
//if (frame.npdu().octetCount() > 0)
//{
// print.print("<- DLL ");
// frame.apdu().printPDU();
//}
// if (frame.npdu().octetCount() > 0)
// {
// _print("-> DLL ");
// frame.apdu().printPDU();
// }
_networkLayer.dataIndication(ack, addrType, destination, type, npdu, priority, source);
}
@ -80,11 +80,11 @@ bool DataLinkLayer::sendTelegram(NPDU & npdu, AckType ack, uint16_t destinationA
return false;
}
//if (frame.npdu().octetCount() > 0)
//{
// print.print("-> DLL ");
// frame.apdu().printPDU();
//}
// if (frame.npdu().octetCount() > 0)
// {
// _print("<- DLL ");
// frame.apdu().printPDU();
// }
return sendFrame(frame);
}

71
tpuart_data_link_layer.cpp
View File

@ -33,7 +33,7 @@
//knx transmit data commands
#define U_L_DATA_START_CONT_REQ 0x80 //-0xBF
#define U_L_DATA_END_REQ 0x47 //-0x7F
#define U_L_DATA_END_REQ 0x40 //-0x7F
//serices to host controller
@ -99,8 +99,6 @@ void TpUartDataLinkLayer::stopChip()
#endif
}
void printHex(const char* suffix, const uint8_t *data, size_t length);
TpUartDataLinkLayer::TpUartDataLinkLayer(DeviceObject& devObj, AddressTableObject& addrTab,
NetworkLayer& layer, Platform& platform) : DataLinkLayer(devObj, addrTab, layer, platform)
@ -184,7 +182,10 @@ bool TpUartDataLinkLayer::checkDataInd(uint8_t firstByte)
return false;
int len = 0;
uint8_t buffer[bufferSize];
uint8_t cemiBuffer[bufferSize + 2];
cemiBuffer[0] = 0x29;
cemiBuffer[1] = 0;
uint8_t* buffer = cemiBuffer + 2;
buffer[0] = firstByte;
uint8_t payloadLength = 0;
@ -192,11 +193,9 @@ bool TpUartDataLinkLayer::checkDataInd(uint8_t firstByte)
{
//convert to extended frame format
_platform.readBytesUart(buffer + 2, 5);
sendAck((AddressType)(buffer[6] & GroupAddress), getWord(buffer + 4));
payloadLength = buffer[6] & 0xF;
_platform.readBytesUart(buffer + 7, payloadLength + 2); //+1 for TCPI +1 for CRC
printHex("->", buffer, 1);
printHex("->", buffer + 2, 5);
printHex("->", buffer + 7, payloadLength + 3);
buffer[1] = buffer[6] & 0xF0;
buffer[6] = payloadLength;
}
@ -204,29 +203,15 @@ bool TpUartDataLinkLayer::checkDataInd(uint8_t firstByte)
{
//extended frame
_platform.readBytesUart(buffer + 1, 6);
sendAck((AddressType)(buffer[1] & GroupAddress), getWord(buffer + 4));
payloadLength = buffer[6];
_platform.readBytesUart(buffer + 7, payloadLength + 2); //+1 for TCPI +1 for CRC
}
len = payloadLength + 9;
printHex("=>", buffer, len);
CemiFrame frame(buffer, len);
if (frame.addressType() == InduvidualAddress && _deviceObject.induvidualAddress() == frame.destinationAddress()
|| frame.addressType() == GroupAddress && _groupAddressTable.contains(frame.destinationAddress()))
{
//send ack.
_platform.writeUart(U_ACK_REQ + 1);
}
else
{
// send not addressed
_platform.writeUart(U_ACK_REQ);
}
const uint8_t queueLength = 5;
static uint8_t buffers[queueLength][bufferSize];
static uint8_t buffers[queueLength][bufferSize + 2];
static uint16_t bufferLengths[queueLength];
if (_sendBuffer != 0)
@ -253,7 +238,7 @@ bool TpUartDataLinkLayer::checkDataInd(uint8_t firstByte)
continue;
bufferLengths[i] = len;
memcpy(&buffers[i][0], buffer, len);
memcpy(&buffers[i][0], cemiBuffer, len + 2);
break;
}
}
@ -265,11 +250,11 @@ bool TpUartDataLinkLayer::checkDataInd(uint8_t firstByte)
if (bufferLengths[i] == 0)
break;
frameBytesReceived(&buffers[i][0], bufferLengths[i]);
frameBytesReceived(&buffers[i][0], bufferLengths[i]+2);
bufferLengths[i] = 0;
}
frameBytesReceived(buffer, len);
frameBytesReceived(cemiBuffer, len+2);
}
return true;
@ -277,6 +262,7 @@ bool TpUartDataLinkLayer::checkDataInd(uint8_t firstByte)
void TpUartDataLinkLayer::frameBytesReceived(uint8_t* buffer, uint16_t length)
{
//printHex("=>", buffer, length);
CemiFrame frame(buffer, length);
frameRecieved(frame);
@ -416,7 +402,8 @@ void TpUartDataLinkLayer::enabled(bool value)
if (value && !_enabled)
{
_platform.setupUart();
_print("ownaddr ");
_println(_deviceObject.induvidualAddress(), HEX);
resetChip();
_enabled = true;
return;
@ -439,21 +426,43 @@ bool TpUartDataLinkLayer::enabled() const
void TpUartDataLinkLayer::sendBytes(uint8_t* bytes, uint16_t length)
{
//printHex("<=", bytes, length);
uint8_t cmd[2];
uint8_t oldIdx = 0;
for (int i = 0; i < length; i++)
{
uint8_t idx = length / 64;
cmd[0] = U_L_DATA_OFFSET_REQ | idx;
_platform.writeUart(cmd, 1);
if (idx != oldIdx)
{
oldIdx = idx;
cmd[0] = U_L_DATA_OFFSET_REQ | idx;
_platform.writeUart(cmd, 1);
}
if (i != length - 1)
cmd[0] = U_L_DATA_START_CONT_REQ | i;
else
cmd[0] = U_L_DATA_END_REQ;
cmd[0] = U_L_DATA_END_REQ | i;
cmd[1] = bytes[i];
_platform.writeUart(cmd, 2);
}
}
}
void TpUartDataLinkLayer::sendAck(AddressType type, uint16_t address)
{
if ( (type == InduvidualAddress && _deviceObject.induvidualAddress() == address)
|| (type == GroupAddress && (_groupAddressTable.contains(address) || address == 0)))
{
//send ack.
_platform.writeUart(U_ACK_REQ + 1);
}
else
{
// send not addressed
_platform.writeUart(U_ACK_REQ);
}
}

1
tpuart_data_link_layer.h
View File

@ -37,4 +37,5 @@ private:
void frameBytesReceived(uint8_t* buffer, uint16_t length);
void resetChip();
void stopChip();
void sendAck(AddressType type, uint16_t address);
};