Moved all devices to separate library and added 'Factory' for device creation.

Former-commit-id: 26cab1b85b00406240689ad9c1018f0307028fe4

libsrc/leddevice/LedDeviceLpd6803.cpp

@@ -0,0 +1,49 @@
+// STL includes
+#include <cstring>
+#include <cstdio>
+#include <iostream>
+
+// Linux includes
+#include <fcntl.h>
+#include <sys/ioctl.h>
+
+// hyperion local includes
+#include "LedDeviceLpd6803.h"
+
+LedDeviceLpd6803::LedDeviceLpd6803(const std::string& outputDevice, const unsigned baudrate) :
+	LedSpiDevice(outputDevice, baudrate),
+	_ledBuffer(0)
+{
+	// empty
+}
+
+int LedDeviceLpd6803::write(const std::vector<ColorRgb> &ledValues)
+{
+	// Reconfigure if the current connfiguration does not match the required configuration
+	if (4 + 2*ledValues.size() != _ledBuffer.size())
+	{
+		// Initialise the buffer
+		_ledBuffer.resize(4 + 2*ledValues.size(), 0x00);
+	}
+
+	// Copy the colors from the ColorRgb vector to the Ldp6803 data vector
+	for (unsigned iLed=0; iLed<ledValues.size(); ++iLed)
+	{
+		const ColorRgb& rgb = ledValues[iLed];
+
+		_ledBuffer[4 + 2 * iLed] = 0x80 | ((rgb.red & 0xf8) >> 1) | (rgb.green >> 6);
+		_ledBuffer[5 + 2 * iLed] = ((rgb.green & 0x38) << 2) | (rgb.blue >> 3);
+	}
+
+	// Write the data
+	if (writeBytes(_ledBuffer.size(), _ledBuffer.data()) < 0)
+	{
+		return -1;
+	}
+	return 0;
+}
+
+int LedDeviceLpd6803::switchOff()
+{
+	return write(std::vector<ColorRgb>(_ledBuffer.size(), ColorRgb{0,0,0}));
+}