Implement ftdi led device - 2 (#1746)

libsrc/leddevice/dev_ftdi/LedDeviceWs2812_ftdi.h

@@ -0,0 +1,49 @@
+#ifndef LEDEVICEWS2812_ftdi_H
+#define LEDEVICEWS2812_ftdi_H
+
+#include "ProviderFtdi.h"
+
+
+class LedDeviceWs2812_ftdi : public ProviderFtdi
+{
+public:
+
+	///
+	/// @brief Constructs a Ws2812 LED-device
+	///
+	/// @param deviceConfig Device's configuration as JSON-Object
+	///
+	explicit LedDeviceWs2812_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;
+
+	const int SPI_BYTES_PER_COLOUR;
+	const int SPI_FRAME_END_LATCH_BYTES;
+
+	uint8_t bitpair_to_byte[4];
+};
+
+#endif // LEDEVICEWS2812_ftdi_H