Merge pull request #393 from LightberryEu/master

APA102 implementation for Adalight

Author: tvdzwan

libsrc/leddevice/CMakeLists.txt

@@ -15,6 +15,7 @@ include_directories(
 SET(Leddevice_QT_HEADERS
 		${CURRENT_SOURCE_DIR}/LedRs232Device.h
 		${CURRENT_SOURCE_DIR}/LedDeviceAdalight.h
+		${CURRENT_SOURCE_DIR}/LedDeviceAdalightApa102.h
 		${CURRENT_SOURCE_DIR}/LedDeviceAmbiLed.h
 		${CURRENT_SOURCE_DIR}/LedDevicePhilipsHue.h
 )
@@ -40,6 +41,7 @@ SET(Leddevice_SOURCES
 		${CURRENT_SOURCE_DIR}/LedRs232Device.cpp
 
 		${CURRENT_SOURCE_DIR}/LedDeviceAdalight.cpp
+		${CURRENT_SOURCE_DIR}/LedDeviceAdalightApa102.cpp
 		${CURRENT_SOURCE_DIR}/LedDeviceAmbiLed.cpp
 		${CURRENT_SOURCE_DIR}/LedDeviceLightpack.cpp
 		${CURRENT_SOURCE_DIR}/LedDeviceMultiLightpack.cpp

libsrc/leddevice/LedDeviceAdalight.h

@@ -40,7 +40,7 @@ private slots:
 	/// Write the last data to the leds again
 	void rewriteLeds();
 
-private:
+protected:
 	/// The buffer containing the packed RGB values
 	std::vector<uint8_t> _ledBuffer;
 

libsrc/leddevice/LedDeviceAdalightApa102.cpp

@@ -0,0 +1,53 @@
+
+// STL includes
+#include <cstring>
+#include <cstdio>
+#include <iostream>
+
+// Linux includes
+#include <fcntl.h>
+#include <sys/ioctl.h>
+
+// hyperion local includes
+#include "LedDeviceAdalightApa102.h"
+
+LedDeviceAdalightApa102::LedDeviceAdalightApa102(const std::string& outputDevice, const unsigned baudrate, int delayAfterConnect_ms) :
+	LedDeviceAdalight(outputDevice, baudrate, delayAfterConnect_ms),
+	_ledBuffer(0),
+	_timer()
+{
+}
+//comparing to ws2801 adalight, the following changes were needed:
+// 1- differnt data frame (4 bytes instead of 3)
+// 2 - in order to accomodate point 1 above, number of leds sent to adalight is increased by 1/3rd
+int LedDeviceAdalightApa102::write(const std::vector<ColorRgb> & ledValues)
+{
+	const unsigned int startFrameSize = 4;
+	const unsigned int endFrameSize = (ledValues.size() + 63) / 64 * 4;
+	const unsigned int mLedCount = (ledValues.size() * 4) + startFrameSize + endFrameSize;
+	if(_ledBuffer.size() != mLedCount){
+		_ledBuffer.resize(mLedCount, 0x00);
+		_ledBuffer[0] = 'A';
+		_ledBuffer[1] = 'd';
+		_ledBuffer[2] = 'a';
+		_ledBuffer[3] = (((unsigned int)(ledValues.size() * 1.33) - 1) >> 8) & 0xFF; // LED count high byte
+		_ledBuffer[4] = ((unsigned int)(ledValues.size() * 1.33) - 1) & 0xFF;        // LED count low byte
+		_ledBuffer[5] = _ledBuffer[3] ^ _ledBuffer[4] ^ 0x55; // Checksum
+	}
+	
+	for (unsigned iLed=1; iLed<=ledValues.size(); iLed++) {
+		const ColorRgb& rgb = ledValues[iLed];
+		_ledBuffer[iLed*4+6]   = 0xFF;
+		_ledBuffer[iLed*4+1+6] = rgb.red;
+		_ledBuffer[iLed*4+2+6] = rgb.green;
+		_ledBuffer[iLed*4+3+6] = rgb.blue;
+	}
+	
+	// restart the timer
+	_timer.start();
+
+	// write data
+	return writeBytes(_ledBuffer.size(), _ledBuffer.data());
+}
+
+

libsrc/leddevice/LedDeviceAdalightApa102.h

@@ -0,0 +1,46 @@
+#pragma once
+
+// STL includes
+#include <string>
+
+// Qt includes
+#include <QTimer>
+
+// hyperion incluse
+#include "LedDeviceAdalight.h"
+
+///
+/// Implementation of the LedDevice interface for writing to an Adalight led device for APA102.
+///
+class LedDeviceAdalightApa102 : public LedDeviceAdalight
+{
+	Q_OBJECT
+
+public:
+	///
+	/// Constructs the LedDevice for attached Adalight device
+	///
+	/// @param outputDevice The name of the output device (eg '/dev/ttyS0')
+	/// @param baudrate The used baudrate for writing to the output device
+	///
+	LedDeviceAdalightApa102(const std::string& outputDevice, const unsigned baudrate, int delayAfterConnect_ms);
+
+	///
+	/// 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);
+
+
+
+private:
+	/// The buffer containing the packed RGB values
+	std::vector<uint8_t> _ledBuffer;
+
+	/// Timer object which makes sure that led data is written at a minimum rate
+	/// The Adalight device will switch off when it does not receive data at least
+	/// every 15 seconds
+	QTimer _timer;
+};

libsrc/leddevice/LedDeviceFactory.cpp

@@ -33,6 +33,7 @@
 #include "LedDevicePhilipsHue.h"
 #include "LedDeviceTpm2.h"
 #include "LedDeviceAtmo.h"
+#include "LedDeviceAdalightApa102.h"
 
 #ifdef ENABLE_WS2812BPWM
 	#include "LedDeviceWS2812b.h"
@@ -58,6 +59,17 @@ LedDevice * LedDeviceFactory::construct(const Json::Value & deviceConfig)
 
 		device = deviceAdalight;
 	}
+	else if (type == "adalightapa102")
+	{
+		const std::string output = deviceConfig["output"].asString();
+		const unsigned rate      = deviceConfig["rate"].asInt();
+		const int delay_ms       = deviceConfig["delayAfterConnect"].asInt();
+
+		LedDeviceAdalightApa102* deviceAdalightApa102 = new LedDeviceAdalightApa102(output, rate, delay_ms);
+		deviceAdalightApa102->open();
+
+		device = deviceAdalightApa102;
+	}
 	else if (type == "ambiled")
 	{
 		const std::string output = deviceConfig["output"].asString();