mirror of
https://github.com/hyperion-project/hyperion.ng.git
synced 2023-10-10 13:36:59 +02:00
96 lines
1.8 KiB
C++
96 lines
1.8 KiB
C++
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// STL includes
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#include <cstring>
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#include <cstdio>
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#include <iostream>
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// Serial includes
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#include <serial/serial.h>
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// Local Hyperion includes
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#include "LedRs232Device.h"
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LedRs232Device::LedRs232Device(const std::string& outputDevice, const unsigned baudrate) :
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mDeviceName(outputDevice),
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mBaudRate_Hz(baudrate),
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_rs232Port()
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{
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// empty
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}
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LedRs232Device::~LedRs232Device()
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{
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if (_rs232Port.isOpen())
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{
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_rs232Port.close();
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}
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}
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int LedRs232Device::open()
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{
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try
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{
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_rs232Port.setPort(mDeviceName);
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_rs232Port.setBaudrate(mBaudRate_Hz);
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_rs232Port.open();
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}
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catch (const std::exception& e)
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{
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std::cerr << "Unable to open RS232 device (" << e.what() << ")" << std::endl;
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return -1;
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}
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return 0;
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}
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int LedRs232Device::writeBytes(const unsigned size, const uint8_t * data)
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{
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if (!_rs232Port.isOpen())
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{
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return -1;
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}
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// for (int i = 0; i < 20; ++i)
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// std::cout << std::hex << (int)data[i] << " ";
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// std::cout << std::endl;
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try
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{
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_rs232Port.write(data, size);
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_rs232Port.flush();
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}
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catch (const serial::SerialException & serialExc)
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{
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// TODO[TvdZ]: Maybe we should limit the frequency of this error report somehow
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std::cerr << "Serial exception caught while writing to device: " << serialExc.what() << std::endl;
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std::cout << "Attempting to re-open the device." << std::endl;
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// First make sure the device is properly closed
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try
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{
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_rs232Port.close();
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}
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catch (const std::exception & e) {}
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// Attempt to open the device and write the data
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try
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{
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_rs232Port.open();
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_rs232Port.write(data, size);
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_rs232Port.flush();
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}
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catch (const std::exception & e)
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{
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// We failed again, this not good, do nothing maybe in the next loop we have more success
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}
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}
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catch (const std::exception& e)
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{
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std::cerr << "Unable to write to RS232 device (" << e.what() << ")" << std::endl;
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return -1;
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}
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return 0;
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}
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