add files for P9813 support

Former-commit-id: 66a4d02bf0e2c7f85d2713a906461df11931cfff

libsrc/leddevice/LedDeviceP9813.cpp

@@ -0,0 +1,34 @@
+
+// STL includes
+#include <cstring>
+#include <cstdio>
+#include <iostream>
+
+// Linux includes
+#include <fcntl.h>
+#include <sys/ioctl.h>
+
+// hyperion local includes
+#include "LedDeviceP9813.h"
+
+LedDeviceP9813::LedDeviceP9813(const std::string& outputDevice, const unsigned baudrate) :
+	LedSpiDevice(outputDevice, baudrate, 0),
+	mLedCount(0)
+{
+	// empty
+}
+
+int LedDeviceP9813::write(const std::vector<ColorRgb> &ledValues)
+{
+	mLedCount = ledValues.size();
+
+	const unsigned dataLen = ledValues.size() * sizeof(ColorRgb);
+	const uint8_t * dataPtr = reinterpret_cast<const uint8_t *>(ledValues.data());
+
+	return writeBytes(dataLen, dataPtr);
+}
+
+int LedDeviceP9813::switchOff()
+{
+	return write(std::vector<ColorRgb>(mLedCount, ColorRgb{0,0,0}));
+}