hyperion.ng/libsrc/leddevice/LedDeviceAdalight.cpp

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// STL includes
#include <cstring>
#include <cstdio>
#include <iostream>
// Linux includes
#include <fcntl.h>
#include <sys/ioctl.h>
// hyperion local includes
#include "LedDeviceAdalight.h"
LedDeviceAdalight::LedDeviceAdalight(const std::string& outputDevice, const unsigned baudrate, int delayAfterConnect_ms) :
LedRs232Device(outputDevice, baudrate, delayAfterConnect_ms),
_ledBuffer(0),
_timer()
{
// setup the timer
_timer.setSingleShot(false);
_timer.setInterval(5000);
connect(&_timer, SIGNAL(timeout()), this, SLOT(rewriteLeds()));
// start the timer
_timer.start();
}
int LedDeviceAdalight::write(const std::vector<ColorRgb> & ledValues)
{
if (_ledBuffer.size() == 0)
{
_ledBuffer.resize(6 + 3*ledValues.size());
_ledBuffer[0] = 'A';
_ledBuffer[1] = 'd';
_ledBuffer[2] = 'a';
_ledBuffer[3] = ((ledValues.size() - 1) >> 8) & 0xFF; // LED count high byte
_ledBuffer[4] = (ledValues.size() - 1) & 0xFF; // LED count low byte
_ledBuffer[5] = _ledBuffer[3] ^ _ledBuffer[4] ^ 0x55; // Checksum
}
// restart the timer
_timer.start();
// write data
memcpy(6 + _ledBuffer.data(), ledValues.data(), ledValues.size() * 3);
return writeBytes(_ledBuffer.size(), _ledBuffer.data());
}
int LedDeviceAdalight::switchOff()
{
// restart the timer
_timer.start();
// write data
memset(6 + _ledBuffer.data(), 0, _ledBuffer.size()-6);
return writeBytes(_ledBuffer.size(), _ledBuffer.data());
}
void LedDeviceAdalight::rewriteLeds()
{
writeBytes(_ledBuffer.size(), _ledBuffer.data());
}