void TICC1100::initChip()
{
try
{
if(_fileDescriptor->descriptor == -1)
{
_out.printError("Error: Could not initialize TI CC1100. The spi device's file descriptor is not valid.");
return;
}
reset();
int32_t index = 0;
for(std::vector<uint8_t>::const_iterator i = _config.begin(); i != _config.end(); ++i)
{
if(writeRegister((Registers::Enum)index, *i, true) != *i)
{
closeDevice();
return;
}
index++;
}
if(writeRegister(Registers::Enum::FSTEST, 0x59, true) != 0x59)
{
closeDevice();
return;
}
if(writeRegister(Registers::Enum::TEST2, 0x81, true) != 0x81) //Determined by SmartRF Studio
{
closeDevice();
return;
}
if(writeRegister(Registers::Enum::TEST1, 0x35, true) != 0x35) //Determined by SmartRF Studio
{
closeDevice();
return;
}
if(writeRegister(Registers::Enum::PATABLE, _settings->txPowerSetting, true) != _settings->txPowerSetting)
{
closeDevice();
return;
}
sendCommandStrobe(CommandStrobes::Enum::SFRX);
usleep(20);
enableRX(true);
}
catch(const std::exception& ex)
{
_out.printEx(__FILE__, __LINE__, __PRETTY_FUNCTION__, ex.what());
}
catch(BaseLib::Exception& ex)
{
_out.printEx(__FILE__, __LINE__, __PRETTY_FUNCTION__, ex.what());
}
catch(...)
{
_out.printEx(__FILE__, __LINE__, __PRETTY_FUNCTION__);
}
}
void TICC1100::endSending()
{
try
{
sendCommandStrobe(CommandStrobes::Enum::SIDLE);
sendCommandStrobe(CommandStrobes::Enum::SFRX);
sendCommandStrobe(CommandStrobes::Enum::SRX);
_sending = false;
_lastPacketSent = BaseLib::HelperFunctions::getTime();
}
catch(const std::exception& ex)
{
_out.printEx(__FILE__, __LINE__, __PRETTY_FUNCTION__, ex.what());
}
catch(BaseLib::Exception& ex)
{
_out.printEx(__FILE__, __LINE__, __PRETTY_FUNCTION__, ex.what());
}
catch(...)
{
_out.printEx(__FILE__, __LINE__, __PRETTY_FUNCTION__);
}
}
void TICC1100::enableRX(bool flushRXFIFO)
{
try
{
if(_fileDescriptor->descriptor == -1) return;
_txMutex.lock();
if(flushRXFIFO) sendCommandStrobe(CommandStrobes::Enum::SFRX);
sendCommandStrobe(CommandStrobes::Enum::SRX);
}
catch(const std::exception& ex)
{
_out.printEx(__FILE__, __LINE__, __PRETTY_FUNCTION__, ex.what());
}
catch(BaseLib::Exception& ex)
{
_out.printEx(__FILE__, __LINE__, __PRETTY_FUNCTION__, ex.what());
}
catch(...)
{
_out.printEx(__FILE__, __LINE__, __PRETTY_FUNCTION__);
}
_txMutex.unlock();
}
void TICC1100::reset()
{
try
{
if(_fileDescriptor->descriptor == -1) return;
sendCommandStrobe(CommandStrobes::Enum::SRES);
usleep(70); //Measured on HM-CC-VD
}
catch(const std::exception& ex)
{
_out.printEx(__FILE__, __LINE__, __PRETTY_FUNCTION__, ex.what());
}
catch(BaseLib::Exception& ex)
{
_out.printEx(__FILE__, __LINE__, __PRETTY_FUNCTION__, ex.what());
}
catch(...)
{
_out.printEx(__FILE__, __LINE__, __PRETTY_FUNCTION__);
}
}
void TICC1100::mainThread()
{
try
{
int32_t pollResult;
int32_t bytesRead;
std::vector<char> readBuffer({'0'});
while(!_stopCallbackThread && _fileDescriptor->descriptor > -1 && _gpioDescriptors[1]->descriptor > -1)
{
if(_stopped)
{
std::this_thread::sleep_for(std::chrono::milliseconds(200));
continue;
}
pollfd pollstruct {
(int)_gpioDescriptors[1]->descriptor,
(short)(POLLPRI | POLLERR),
(short)0
};
pollResult = poll(&pollstruct, 1, 100);
/*if(pollstruct.revents & POLLERR)
{
_out.printWarning("Warning: Error polling GPIO. Reopening...");
closeGPIO();
std::this_thread::sleep_for(std::chrono::milliseconds(1000));
openGPIO(_settings->gpio1);
}*/
if(pollResult > 0)
{
if(lseek(_gpioDescriptors[1]->descriptor, 0, SEEK_SET) == -1) throw BaseLib::Exception("Could not poll gpio: " + std::string(strerror(errno)));
bytesRead = read(_gpioDescriptors[1]->descriptor, &readBuffer[0], 1);
if(!bytesRead) continue;
if(readBuffer.at(0) == 0x30)
{
if(!_sending) _txMutex.try_lock(); //We are receiving, don't send now
continue; //Packet is being received. Wait for GDO high
}
if(_sending) endSending();
else
{
//sendCommandStrobe(CommandStrobes::Enum::SIDLE);
std::shared_ptr<MAXPacket> packet;
if(crcOK())
{
uint8_t firstByte = readRegister(Registers::Enum::FIFO);
std::vector<uint8_t> packetBytes = readRegisters(Registers::Enum::FIFO, firstByte + 1); //Read packet + RSSI
packetBytes[0] = firstByte;
if(packetBytes.size() >= 9) packet.reset(new MAXPacket(packetBytes, true, BaseLib::HelperFunctions::getTime()));
else _out.printWarning("Warning: Too small packet received: " + BaseLib::HelperFunctions::getHexString(packetBytes));
}
else _out.printDebug("Debug: MAX! packet received, but CRC failed.");
if(!_sendingPending)
{
sendCommandStrobe(CommandStrobes::Enum::SFRX);
sendCommandStrobe(CommandStrobes::Enum::SRX);
}
if(packet)
{
if(_firstPacket) _firstPacket = false;
else raisePacketReceived(packet);
}
}
_txMutex.unlock(); //Packet sent or received, now we can send again
}
else if(pollResult < 0)
{
_txMutex.unlock();
_out.printError("Error: Could not poll gpio: " + std::string(strerror(errno)) + ". Reopening...");
closeGPIO(1);
std::this_thread::sleep_for(std::chrono::milliseconds(1000));
openGPIO(1, true);
}
//pollResult == 0 is timeout
}
}
catch(const std::exception& ex)
{
_txMutex.unlock();
_out.printEx(__FILE__, __LINE__, __PRETTY_FUNCTION__, ex.what());
}
catch(BaseLib::Exception& ex)
{
_txMutex.unlock();
_out.printEx(__FILE__, __LINE__, __PRETTY_FUNCTION__, ex.what());
}
catch(...)
{
_txMutex.unlock();
_out.printEx(__FILE__, __LINE__, __PRETTY_FUNCTION__);
}
try
{
if(!_stopCallbackThread && (_fileDescriptor->descriptor == -1 || _gpioDescriptors[1]->descriptor == -1))
{
_out.printError("Connection to TI CC1101 closed inexpectedly... Trying to reconnect...");
_stopCallbackThread = true; //Set to true, so that sendPacket aborts
_txMutex.unlock(); //Make sure _txMutex is unlocked
std::thread thread(&TICC1100::startListening, this);
thread.detach();
}
else _txMutex.unlock(); //Make sure _txMutex is unlocked
}
catch(const std::exception& ex)
{
_out.printEx(__FILE__, __LINE__, __PRETTY_FUNCTION__, ex.what());
}
catch(BaseLib::Exception& ex)
{
_out.printEx(__FILE__, __LINE__, __PRETTY_FUNCTION__, ex.what());
}
catch(...)
{
_out.printEx(__FILE__, __LINE__, __PRETTY_FUNCTION__);
}
}
void TICC1100::sendPacket(std::shared_ptr<BaseLib::Systems::Packet> packet)
{
try
{
if(!packet)
{
_out.printWarning("Warning: Packet was nullptr.");
return;
}
if(_fileDescriptor->descriptor == -1 || _gpioDescriptors[1]->descriptor == -1 || _stopped) return;
if(packet->payload()->size() > 54)
{
_out.printError("Error: Tried to send packet larger than 64 bytes. That is not supported.");
return;
}
std::shared_ptr<MAXPacket> maxPacket(std::dynamic_pointer_cast<MAXPacket>(packet));
if(!maxPacket) return;
std::vector<uint8_t> packetBytes = maxPacket->byteArray();
int64_t timeBeforeLock = BaseLib::HelperFunctions::getTime();
_sendingPending = true;
_txMutex.lock();
_sendingPending = false;
if(_stopCallbackThread || _fileDescriptor->descriptor == -1 || _gpioDescriptors[1]->descriptor == -1 || _stopped)
{
_txMutex.unlock();
return;
}
_sending = true;
sendCommandStrobe(CommandStrobes::Enum::SIDLE);
sendCommandStrobe(CommandStrobes::Enum::SFTX);
_lastPacketSent = BaseLib::HelperFunctions::getTime();
if(_lastPacketSent - timeBeforeLock > 100)
{
_out.printWarning("Warning: Timing problem. Sending took more than 100ms. Do you have enough system resources?");
}
if(maxPacket->getBurst())
{
sendCommandStrobe(CommandStrobes::Enum::STX);
usleep(1000000);
}
writeRegisters(Registers::Enum::FIFO, packetBytes);
if(!maxPacket->getBurst()) sendCommandStrobe(CommandStrobes::Enum::STX);
if(_bl->debugLevel > 3)
{
if(packet->timeSending() > 0)
{
_out.printInfo("Info: Sending (" + _settings->id + ", WOR: " + (maxPacket->getBurst() ? "yes" : "no") + "): " + packet->hexString() + " Planned sending time: " + BaseLib::HelperFunctions::getTimeString(packet->timeSending()));
}
else
{
_out.printInfo("Info: Sending (" + _settings->id + ", WOR: " + (maxPacket->getBurst() ? "yes" : "no") + "): " + packet->hexString());
}
}
//Unlocking of _txMutex takes place in mainThread
}
catch(const std::exception& ex)
{
_out.printEx(__FILE__, __LINE__, __PRETTY_FUNCTION__, ex.what());
}
catch(BaseLib::Exception& ex)
{
_out.printEx(__FILE__, __LINE__, __PRETTY_FUNCTION__, ex.what());
}
catch(...)
{
_out.printEx(__FILE__, __LINE__, __PRETTY_FUNCTION__);
}
}