hyperion.ng/libsrc/leddevice/LedDeviceTpm2.cpp

#include "LedDeviceTpm2.h"


LedDeviceTpm2::LedDeviceTpm2(const Json::Value &deviceConfig)
	: ProviderRs232(deviceConfig)
{
}

LedDevice* LedDeviceTpm2::construct(const Json::Value &deviceConfig)
{
	return new LedDeviceTpm2(deviceConfig);
}

int LedDeviceTpm2::write(const std::vector<ColorRgb> &ledValues)
{
	if (_ledBuffer.size() == 0)
	{
		_ledBuffer.resize(5 + 3*_ledCount);
		_ledBuffer[0] = 0xC9; // block-start byte
		_ledBuffer[1] = 0xDA; // DATA frame
		_ledBuffer[2] = ((3 * _ledCount) >> 8) & 0xFF; // frame size high byte
		_ledBuffer[3] = (3 * _ledCount) & 0xFF; // frame size low byte
		_ledBuffer.back() = 0x36; // block-end byte
	}

	// write data
	memcpy(4 + _ledBuffer.data(), ledValues.data(), _ledCount * 3);
	return writeBytes(_ledBuffer.size(), _ledBuffer.data());
}