Implement ftdi led device - 2 (#1746)

libsrc/leddevice/dev_ftdi/LedDeviceSk6812_ftdi.h

@@ -0,0 +1,52 @@
+#ifndef LEDEVICESK6812ftdi_H
+#define LEDEVICESK6812ftdi_H
+
+#include "ProviderFtdi.h"
+
+class LedDeviceSk6812_ftdi : public ProviderFtdi
+{
+public:
+
+	///
+	/// @brief Constructs a Sk6801 LED-device
+	///
+	/// @param deviceConfig Device's configuration as JSON-Object
+	///
+	explicit LedDeviceSk6812_ftdi(const QJsonObject& deviceConfig);
+
+	///
+	/// @brief Constructs the LED-device
+	///
+	/// @param[in] deviceConfig Device's configuration as JSON-Object
+	/// @return LedDevice constructed
+	static LedDevice* construct(const QJsonObject& deviceConfig);
+
+private:
+
+	///
+	/// @brief Initialise the device's configuration
+	///
+	/// @param[in] deviceConfig the JSON device configuration
+	/// @return True, if success
+	///
+	bool init(const QJsonObject& deviceConfig) override;
+
+	///
+	/// @brief Writes the RGB-Color values to the LEDs.
+	///
+	/// @param[in] ledValues The RGB-color per LED
+	/// @return Zero on success, else negative
+	///
+	int write(const std::vector<ColorRgb>& ledValues) override;
+
+	inline __attribute__((always_inline)) uint8_t scale(uint8_t i, uint8_t scale);
+
+	RGBW::WhiteAlgorithm _whiteAlgorithm;
+
+	const int SPI_BYTES_PER_COLOUR;
+	uint8_t bitpair_to_byte[4];
+
+	int _brightnessControlMaxLevel;
+};
+
+#endif // LEDEVICESK6812ftdi_H