add files for P9813 support

Author: luisc

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}));
+}

libsrc/leddevice/LedDeviceP9813.h

@@ -0,0 +1,39 @@
+#pragma once
+
+// STL includes
+#include <string>
+
+// hyperion include
+#include "LedSpiDevice.h"
+
+///
+/// Implementation of the LedDevice interface for writing to P9813 led device.
+///
+class LedDeviceP9813 : public LedSpiDevice
+{
+public:
+	///
+	/// Constructs the LedDevice for a string containing leds of the type P9813
+	///
+	/// @param outputDevice The name of the output device (eg '/etc/SpiDev.0.0')
+	/// @param baudrate The used baudrate for writing to the output device
+	///
+	LedDeviceP9813(const std::string& outputDevice,
+					const unsigned baudrate);
+
+	///
+	/// 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);
+
+	/// Switch the leds off
+	virtual int switchOff();
+
+private:
+
+	/// the number of leds
+	size_t mLedCount;
+};