Add Karatelight support (#487)

* Add Karatelight support

* Add Karatelight Schema

* Actually use the new schema file

* Put karate device to USB group in webinterface

libsrc/leddevice/dev_serial/LedDeviceKarate.cpp

@@ -0,0 +1,59 @@
+// hyperion local includes
+#include "LedDeviceKarate.h"
+
+LedDeviceKarate::LedDeviceKarate(const QJsonObject &deviceConfig)
+	: ProviderRs232()
+{
+	_deviceReady = init(deviceConfig);
+	connect(this,SIGNAL(receivedData(QByteArray)),this,SLOT(receivedData(QByteArray)));
+}
+
+LedDevice* LedDeviceKarate::construct(const QJsonObject &deviceConfig)
+{
+	return new LedDeviceKarate(deviceConfig);
+}
+
+bool LedDeviceKarate::init(const QJsonObject &deviceConfig)
+{
+	ProviderRs232::init(deviceConfig);
+
+	if (_ledCount != 16)
+	{
+		Error( _log, "%d channels configured. This should always be 16!", _ledCount);
+		return 0;
+	}
+
+	_ledBuffer.resize(4 + _ledCount * 3); // 4-byte header, 3 RGB values
+	_ledBuffer[0] = 0xAA;       // Startbyte
+	_ledBuffer[1] = 0x12;       // Send all Channels in Batch
+	_ledBuffer[2] = 0x00;       // Checksum
+	_ledBuffer[3] = _ledCount * 3;       // Number of Databytes send
+
+	Debug( _log, "Karatelight header for %d leds: 0x%02x 0x%02x 0x%02x 0x%02x", _ledCount,
+		_ledBuffer[0], _ledBuffer[1], _ledBuffer[2], _ledBuffer[3] );
+	return true;
+}
+
+int LedDeviceKarate::write(const std::vector<ColorRgb> &ledValues)
+{
+	for (signed iLed=0; iLed<_ledCount; iLed++)
+        {
+		
+       		const ColorRgb& rgb = ledValues[iLed];
+                _ledBuffer[iLed*3+4] = rgb.green;
+                _ledBuffer[iLed*3+5] = rgb.blue;
+                _ledBuffer[iLed*3+6] = rgb.red;
+        }
+
+	// Calc Checksum
+	_ledBuffer[2] =  _ledBuffer[0] ^ _ledBuffer[1];
+    	for (unsigned int i = 3; i < _ledBuffer.size(); i++)
+      		_ledBuffer[2] ^= _ledBuffer[i];
+
+	return writeBytes(_ledBuffer.size(), _ledBuffer.data());
+}
+
+void LedDeviceKarate::receivedData(QByteArray data)
+{
+        Debug(_log, ">>received %d bytes data %s", data.size(),data.data());
+}

libsrc/leddevice/dev_serial/LedDeviceKarate.h

@@ -0,0 +1,36 @@
+#pragma once
+
+// hyperion incluse
+#include "ProviderRs232.h"
+
+///
+/// Implementation of the LedDevice interface for writing to serial device using tpm2 protocol.
+///
+class LedDeviceKarate : public ProviderRs232
+{
+	Q_OBJECT
+public:
+	///
+	/// Constructs specific LedDevice
+	///
+	/// @param deviceConfig json device config
+	///
+	LedDeviceKarate(const QJsonObject &deviceConfig);
+
+	/// constructs leddevice
+	static LedDevice* construct(const QJsonObject &deviceConfig);
+
+	virtual bool init(const QJsonObject &deviceConfig);
+
+public slots:
+	void receivedData(QByteArray data);
+
+private:
+	///
+	/// Writes the led color values to the led-device
+	///
+	/// @param ledValues The color-value per led
+	/// @return Zero on succes else negative
+	///
+	virtual int write(const std::vector<ColorRgb> &ledValues);
+};