Added Raw HID device

Author: NicoHood

libsrc/leddevice/CMakeLists.txt

@@ -18,6 +18,8 @@ SET(Leddevice_QT_HEADERS
 		${CURRENT_SOURCE_DIR}/LedDeviceAdalightApa102.h
 		${CURRENT_SOURCE_DIR}/LedDeviceAmbiLed.h
 		${CURRENT_SOURCE_DIR}/LedDevicePhilipsHue.h
+		${CURRENT_SOURCE_DIR}/LedHIDDevice.h
+		${CURRENT_SOURCE_DIR}/LedDeviceRawHID.h
 )
 
 SET(Leddevice_HEADERS
@@ -39,10 +41,12 @@ SET(Leddevice_SOURCES
 		${CURRENT_SOURCE_DIR}/LedDeviceFactory.cpp
 
 		${CURRENT_SOURCE_DIR}/LedRs232Device.cpp
+		${CURRENT_SOURCE_DIR}/LedHIDDevice.cpp
 
 		${CURRENT_SOURCE_DIR}/LedDeviceAdalight.cpp
 		${CURRENT_SOURCE_DIR}/LedDeviceAdalightApa102.cpp
 		${CURRENT_SOURCE_DIR}/LedDeviceAmbiLed.cpp
+		${CURRENT_SOURCE_DIR}/LedDeviceRawHID.cpp
 		${CURRENT_SOURCE_DIR}/LedDeviceLightpack.cpp
 		${CURRENT_SOURCE_DIR}/LedDeviceMultiLightpack.cpp
 		${CURRENT_SOURCE_DIR}/LedDevicePaintpack.cpp

libsrc/leddevice/LedDeviceFactory.cpp

@@ -23,6 +23,7 @@
 
 #include "LedDeviceAdalight.h"
 #include "LedDeviceAmbiLed.h"
+#include "LedDeviceRawHID.h"
 #include "LedDeviceLightpack.h"
 #include "LedDeviceMultiLightpack.h"
 #include "LedDevicePaintpack.h"
@@ -147,6 +148,21 @@ LedDevice * LedDeviceFactory::construct(const Json::Value & deviceConfig)
 		device = deviceTinkerforge;
 	}
 #endif
+	else if (type == "rawhid")
+	{
+		const int delay_ms        = deviceConfig["delayAfterConnect"].asInt();
+		auto VendorIdString       = deviceConfig.get("VID", "0x2341").asString();
+		auto ProductIdString      = deviceConfig.get("PID", "0x8036").asString();
+
+		// Convert HEX values to integer
+		auto VendorId = std::stoul(VendorIdString, nullptr, 16);
+		auto ProductId = std::stoul(ProductIdString, nullptr, 16);
+
+		LedDeviceRawHID* deviceHID = new LedDeviceRawHID(VendorId, ProductId, delay_ms);
+		deviceHID->open();
+
+		device = deviceHID;
+	}
 	else if (type == "lightpack")
 	{
 		const std::string output = deviceConfig.get("output", "").asString();

libsrc/leddevice/LedDeviceRawHID.cpp

@@ -0,0 +1,57 @@
+
+// STL includes
+#include <cstring>
+#include <cstdio>
+#include <iostream>
+
+// Linux includes
+#include <fcntl.h>
+#include <sys/ioctl.h>
+
+// hyperion local includes
+#include "LedDeviceRawHID.h"
+
+// Use feature report HID device
+LedDeviceRawHID::LedDeviceRawHID(const unsigned short VendorId, const unsigned short ProductId, int delayAfterConnect_ms) :
+	LedHIDDevice(VendorId, ProductId, delayAfterConnect_ms, true),
+	_ledBuffer(0),
+	_timer()
+{
+	// setup the timer
+	_timer.setSingleShot(false);
+	_timer.setInterval(5000);
+	connect(&_timer, SIGNAL(timeout()), this, SLOT(rewriteLeds()));
+
+	// start the timer
+	_timer.start();
+}
+
+int LedDeviceRawHID::write(const std::vector<ColorRgb> & ledValues)
+{
+	// Resize buffer if required
+	if (_ledBuffer.size() < ledValues.size() * 3) {
+		_ledBuffer.resize(3 * ledValues.size());
+	}
+
+	// restart the timer
+	_timer.start();
+
+	// write data
+	memcpy(_ledBuffer.data(), ledValues.data(), ledValues.size() * 3);
+	return writeBytes(_ledBuffer.size(), _ledBuffer.data());
+}
+
+int LedDeviceRawHID::switchOff()
+{
+	// restart the timer
+	_timer.start();
+
+	// write data
+	std::fill(_ledBuffer.begin(), _ledBuffer.end(), uint8_t(0));
+	return writeBytes(_ledBuffer.size(), _ledBuffer.data());
+}
+
+void LedDeviceRawHID::rewriteLeds()
+{
+	writeBytes(_ledBuffer.size(), _ledBuffer.data());
+}

libsrc/leddevice/LedDeviceRawHID.h

@@ -0,0 +1,48 @@
+#pragma once
+
+// STL includes
+#include <string>
+
+// Qt includes
+#include <QTimer>
+
+// hyperion include
+#include "LedHIDDevice.h"
+
+///
+/// Implementation of the LedDevice interface for writing to an RawHID led device.
+///
+class LedDeviceRawHID : public LedHIDDevice
+{
+	Q_OBJECT
+
+public:
+	///
+	/// Constructs the LedDevice for attached RawHID device
+	///
+	LedDeviceRawHID(const unsigned short VendorId, const unsigned short ProductId, 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);
+
+	/// Switch the leds off
+	virtual int switchOff();
+
+private slots:
+	/// Write the last data to the leds again
+	void rewriteLeds();
+
+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 RawHID device will switch off when it does not receive data at least
+	/// every 15 seconds
+	QTimer _timer;
+};