Merge commit '60b30c036397cb5627fa374bb930794b225daa29' as 'lib/lufa'

9 files changed, 3350 insertions, 0 deletions

diff --git a/lib/lufa/Demos/Device/LowLevel/Joystick/Config/LUFAConfig.h b/lib/lufa/Demos/Device/LowLevel/Joystick/Config/LUFAConfig.h
new file mode 100644
index 0000000000..299d2ec852
--- /dev/null
+++ b/lib/lufa/Demos/Device/LowLevel/Joystick/Config/LUFAConfig.h
@@ -0,0 +1,126 @@
+/*
+             LUFA Library
+     Copyright (C) Dean Camera, 2017.
+
+  dean [at] fourwalledcubicle [dot] com
+           www.lufa-lib.org
+*/
+
+/*
+  Copyright 2017  Dean Camera (dean [at] fourwalledcubicle [dot] com)
+
+  Permission to use, copy, modify, distribute, and sell this
+  software and its documentation for any purpose is hereby granted
+  without fee, provided that the above copyright notice appear in
+  all copies and that both that the copyright notice and this
+  permission notice and warranty disclaimer appear in supporting
+  documentation, and that the name of the author not be used in
+  advertising or publicity pertaining to distribution of the
+  software without specific, written prior permission.
+
+  The author disclaims all warranties with regard to this
+  software, including all implied warranties of merchantability
+  and fitness.  In no event shall the author be liable for any
+  special, indirect or consequential damages or any damages
+  whatsoever resulting from loss of use, data or profits, whether
+  in an action of contract, negligence or other tortious action,
+  arising out of or in connection with the use or performance of
+  this software.
+*/
+
+/** \file
+ *  \brief LUFA Library Configuration Header File
+ *
+ *  This header file is used to configure LUFA's compile time options,
+ *  as an alternative to the compile time constants supplied through
+ *  a makefile.
+ *
+ *  For information on what each token does, refer to the LUFA
+ *  manual section "Summary of Compile Tokens".
+ */
+
+#ifndef _LUFA_CONFIG_H_
+#define _LUFA_CONFIG_H_
+
+	#if (ARCH == ARCH_AVR8)
+
+		/* Non-USB Related Configuration Tokens: */
+//		#define DISABLE_TERMINAL_CODES
+
+		/* USB Class Driver Related Tokens: */
+//		#define HID_HOST_BOOT_PROTOCOL_ONLY
+//		#define HID_STATETABLE_STACK_DEPTH       {Insert Value Here}
+//		#define HID_USAGE_STACK_DEPTH            {Insert Value Here}
+//		#define HID_MAX_COLLECTIONS              {Insert Value Here}
+//		#define HID_MAX_REPORTITEMS              {Insert Value Here}
+//		#define HID_MAX_REPORT_IDS               {Insert Value Here}
+//		#define NO_CLASS_DRIVER_AUTOFLUSH
+
+		/* General USB Driver Related Tokens: */
+//		#define ORDERED_EP_CONFIG
+		#define USE_STATIC_OPTIONS               (USB_DEVICE_OPT_FULLSPEED | USB_OPT_REG_ENABLED | USB_OPT_AUTO_PLL)
+		#define USB_DEVICE_ONLY
+//		#define USB_HOST_ONLY
+//		#define USB_STREAM_TIMEOUT_MS            {Insert Value Here}
+//		#define NO_LIMITED_CONTROLLER_CONNECT
+//		#define NO_SOF_EVENTS
+
+		/* USB Device Mode Driver Related Tokens: */
+//		#define USE_RAM_DESCRIPTORS
+		#define USE_FLASH_DESCRIPTORS
+//		#define USE_EEPROM_DESCRIPTORS
+//		#define NO_INTERNAL_SERIAL
+		#define FIXED_CONTROL_ENDPOINT_SIZE      8
+//		#define DEVICE_STATE_AS_GPIOR            {Insert Value Here}
+		#define FIXED_NUM_CONFIGURATIONS         1
+//		#define CONTROL_ONLY_DEVICE
+//		#define INTERRUPT_CONTROL_ENDPOINT
+//		#define NO_DEVICE_REMOTE_WAKEUP
+//		#define NO_DEVICE_SELF_POWER
+
+		/* USB Host Mode Driver Related Tokens: */
+//		#define HOST_STATE_AS_GPIOR              {Insert Value Here}
+//		#define USB_HOST_TIMEOUT_MS              {Insert Value Here}
+//		#define HOST_DEVICE_SETTLE_DELAY_MS	     {Insert Value Here}
+//		#define NO_AUTO_VBUS_MANAGEMENT
+//		#define INVERTED_VBUS_ENABLE_LINE
+
+	#elif (ARCH == ARCH_XMEGA)
+
+		/* Non-USB Related Configuration Tokens: */
+//		#define DISABLE_TERMINAL_CODES
+
+		/* USB Class Driver Related Tokens: */
+//		#define HID_HOST_BOOT_PROTOCOL_ONLY
+//		#define HID_STATETABLE_STACK_DEPTH       {Insert Value Here}
+//		#define HID_USAGE_STACK_DEPTH            {Insert Value Here}
+//		#define HID_MAX_COLLECTIONS              {Insert Value Here}
+//		#define HID_MAX_REPORTITEMS              {Insert Value Here}
+//		#define HID_MAX_REPORT_IDS               {Insert Value Here}
+//		#define NO_CLASS_DRIVER_AUTOFLUSH
+
+		/* General USB Driver Related Tokens: */
+		#define USE_STATIC_OPTIONS               (USB_DEVICE_OPT_FULLSPEED | USB_OPT_RC32MCLKSRC | USB_OPT_BUSEVENT_PRIHIGH)
+//		#define USB_STREAM_TIMEOUT_MS            {Insert Value Here}
+//		#define NO_LIMITED_CONTROLLER_CONNECT
+//		#define NO_SOF_EVENTS
+
+		/* USB Device Mode Driver Related Tokens: */
+//		#define USE_RAM_DESCRIPTORS
+		#define USE_FLASH_DESCRIPTORS
+//		#define USE_EEPROM_DESCRIPTORS
+//		#define NO_INTERNAL_SERIAL
+		#define FIXED_CONTROL_ENDPOINT_SIZE      8
+//		#define DEVICE_STATE_AS_GPIOR            {Insert Value Here}
+		#define FIXED_NUM_CONFIGURATIONS         1
+//		#define CONTROL_ONLY_DEVICE
+		#define MAX_ENDPOINT_INDEX               1
+//		#define NO_DEVICE_REMOTE_WAKEUP
+//		#define NO_DEVICE_SELF_POWER
+
+	#else
+
+		#error Unsupported architecture for this LUFA configuration file.
+
+	#endif
+#endif
diff --git a/lib/lufa/Demos/Device/LowLevel/Joystick/Descriptors.c b/lib/lufa/Demos/Device/LowLevel/Joystick/Descriptors.c
new file mode 100644
index 0000000000..45949897c7
--- /dev/null
+++ b/lib/lufa/Demos/Device/LowLevel/Joystick/Descriptors.c
@@ -0,0 +1,240 @@
+/*
+             LUFA Library
+     Copyright (C) Dean Camera, 2017.
+
+  dean [at] fourwalledcubicle [dot] com
+           www.lufa-lib.org
+*/
+
+/*
+  Copyright 2017  Dean Camera (dean [at] fourwalledcubicle [dot] com)
+
+  Permission to use, copy, modify, distribute, and sell this
+  software and its documentation for any purpose is hereby granted
+  without fee, provided that the above copyright notice appear in
+  all copies and that both that the copyright notice and this
+  permission notice and warranty disclaimer appear in supporting
+  documentation, and that the name of the author not be used in
+  advertising or publicity pertaining to distribution of the
+  software without specific, written prior permission.
+
+  The author disclaims all warranties with regard to this
+  software, including all implied warranties of merchantability
+  and fitness.  In no event shall the author be liable for any
+  special, indirect or consequential damages or any damages
+  whatsoever resulting from loss of use, data or profits, whether
+  in an action of contract, negligence or other tortious action,
+  arising out of or in connection with the use or performance of
+  this software.
+*/
+
+/** \file
+ *
+ *  USB Device Descriptors, for library use when in USB device mode. Descriptors are special
+ *  computer-readable structures which the host requests upon device enumeration, to determine
+ *  the device's capabilities and functions.
+ */
+
+#include "Descriptors.h"
+
+/** HID class report descriptor. This is a special descriptor constructed with values from the
+ *  USBIF HID class specification to describe the reports and capabilities of the HID device. This
+ *  descriptor is parsed by the host and its contents used to determine what data (and in what encoding)
+ *  the device will send, and what it may be sent back from the host. Refer to the HID specification for
+ *  more details on HID report descriptors.
+ */
+const USB_Descriptor_HIDReport_Datatype_t PROGMEM JoystickReport[] =
+{
+	HID_RI_USAGE_PAGE(8, 0x01), /* Generic Desktop */
+	HID_RI_USAGE(8, 0x04), /* Joystick */
+	HID_RI_COLLECTION(8, 0x01), /* Application */
+		HID_RI_USAGE(8, 0x01), /* Pointer */
+		HID_RI_COLLECTION(8, 0x00), /* Physical */
+			HID_RI_USAGE(8, 0x30), /* Usage X */
+			HID_RI_USAGE(8, 0x31), /* Usage Y */
+			HID_RI_USAGE(8, 0x32), /* Usage Z */
+			HID_RI_LOGICAL_MINIMUM(8, -100),
+			HID_RI_LOGICAL_MAXIMUM(8, 100),
+			HID_RI_PHYSICAL_MINIMUM(8, -1),
+			HID_RI_PHYSICAL_MAXIMUM(8, 1),
+			HID_RI_REPORT_COUNT(8, 0x03),
+			HID_RI_REPORT_SIZE(8, 0x08),
+			HID_RI_INPUT(8, HID_IOF_DATA | HID_IOF_VARIABLE | HID_IOF_ABSOLUTE),
+		HID_RI_END_COLLECTION(0),
+		HID_RI_USAGE_PAGE(8, 0x09), /* Button */
+		HID_RI_USAGE_MINIMUM(8, 0x01),
+		HID_RI_USAGE_MAXIMUM(8, 0x02),
+		HID_RI_LOGICAL_MINIMUM(8, 0x00),
+		HID_RI_LOGICAL_MAXIMUM(8, 0x01),
+		HID_RI_REPORT_SIZE(8, 0x01),
+		HID_RI_REPORT_COUNT(8, 0x02),
+		HID_RI_INPUT(8, HID_IOF_DATA | HID_IOF_VARIABLE | HID_IOF_ABSOLUTE),
+		HID_RI_REPORT_SIZE(8, 0x06),
+		HID_RI_REPORT_COUNT(8, 0x01),
+		HID_RI_INPUT(8, HID_IOF_CONSTANT),
+	HID_RI_END_COLLECTION(0),
+};
+
+/** Device descriptor structure. This descriptor, located in FLASH memory, describes the overall
+ *  device characteristics, including the supported USB version, control endpoint size and the
+ *  number of device configurations. The descriptor is read out by the USB host when the enumeration
+ *  process begins.
+ */
+const USB_Descriptor_Device_t PROGMEM DeviceDescriptor =
+{
+	.Header                 = {.Size = sizeof(USB_Descriptor_Device_t), .Type = DTYPE_Device},
+
+	.USBSpecification       = VERSION_BCD(1,1,0),
+	.Class                  = USB_CSCP_NoDeviceClass,
+	.SubClass               = USB_CSCP_NoDeviceSubclass,
+	.Protocol               = USB_CSCP_NoDeviceProtocol,
+
+	.Endpoint0Size          = FIXED_CONTROL_ENDPOINT_SIZE,
+
+	.VendorID               = 0x03EB,
+	.ProductID              = 0x2043,
+	.ReleaseNumber          = VERSION_BCD(0,0,1),
+
+	.ManufacturerStrIndex   = STRING_ID_Manufacturer,
+	.ProductStrIndex        = STRING_ID_Product,
+	.SerialNumStrIndex      = NO_DESCRIPTOR,
+
+	.NumberOfConfigurations = FIXED_NUM_CONFIGURATIONS
+};
+
+/** Configuration descriptor structure. This descriptor, located in FLASH memory, describes the usage
+ *  of the device in one of its supported configurations, including information about any device interfaces
+ *  and endpoints. The descriptor is read out by the USB host during the enumeration process when selecting
+ *  a configuration so that the host may correctly communicate with the USB device.
+ */
+const USB_Descriptor_Configuration_t PROGMEM ConfigurationDescriptor =
+{
+	.Config =
+		{
+			.Header                 = {.Size = sizeof(USB_Descriptor_Configuration_Header_t), .Type = DTYPE_Configuration},
+
+			.TotalConfigurationSize = sizeof(USB_Descriptor_Configuration_t),
+			.TotalInterfaces        = 1,
+
+			.ConfigurationNumber    = 1,
+			.ConfigurationStrIndex  = NO_DESCRIPTOR,
+
+			.ConfigAttributes       = (USB_CONFIG_ATTR_RESERVED | USB_CONFIG_ATTR_SELFPOWERED),
+
+			.MaxPowerConsumption    = USB_CONFIG_POWER_MA(100)
+		},
+
+	.HID_Interface =
+		{
+			.Header                 = {.Size = sizeof(USB_Descriptor_Interface_t), .Type = DTYPE_Interface},
+
+			.InterfaceNumber        = INTERFACE_ID_Joystick,
+			.AlternateSetting       = 0x00,
+
+			.TotalEndpoints         = 1,
+
+			.Class                  = HID_CSCP_HIDClass,
+			.SubClass               = HID_CSCP_NonBootSubclass,
+			.Protocol               = HID_CSCP_NonBootProtocol,
+
+			.InterfaceStrIndex      = NO_DESCRIPTOR
+		},
+
+	.HID_JoystickHID =
+		{
+			.Header                 = {.Size = sizeof(USB_HID_Descriptor_HID_t), .Type = HID_DTYPE_HID},
+
+			.HIDSpec                = VERSION_BCD(1,1,1),
+			.CountryCode            = 0x00,
+			.TotalReportDescriptors = 1,
+			.HIDReportType          = HID_DTYPE_Report,
+			.HIDReportLength        = sizeof(JoystickReport)
+		},
+
+	.HID_ReportINEndpoint =
+		{
+			.Header                 = {.Size = sizeof(USB_Descriptor_Endpoint_t), .Type = DTYPE_Endpoint},
+
+			.EndpointAddress        = JOYSTICK_EPADDR,
+			.Attributes             = (EP_TYPE_INTERRUPT | ENDPOINT_ATTR_NO_SYNC | ENDPOINT_USAGE_DATA),
+			.EndpointSize           = JOYSTICK_EPSIZE,
+			.PollingIntervalMS      = 0x05
+		}
+};
+
+/** Language descriptor structure. This descriptor, located in FLASH memory, is returned when the host requests
+ *  the string descriptor with index 0 (the first index). It is actually an array of 16-bit integers, which indicate
+ *  via the language ID table available at USB.org what languages the device supports for its string descriptors.
+ */
+const USB_Descriptor_String_t PROGMEM LanguageString = USB_STRING_DESCRIPTOR_ARRAY(LANGUAGE_ID_ENG);
+
+/** Manufacturer descriptor string. This is a Unicode string containing the manufacturer's details in human readable
+ *  form, and is read out upon request by the host when the appropriate string ID is requested, listed in the Device
+ *  Descriptor.
+ */
+const USB_Descriptor_String_t PROGMEM ManufacturerString = USB_STRING_DESCRIPTOR(L"Dean Camera");
+
+/** Product descriptor string. This is a Unicode string containing the product's details in human readable form,
+ *  and is read out upon request by the host when the appropriate string ID is requested, listed in the Device
+ *  Descriptor.
+ */
+const USB_Descriptor_String_t PROGMEM ProductString = USB_STRING_DESCRIPTOR(L"LUFA Joystick Demo");
+
+/** This function is called by the library when in device mode, and must be overridden (see library "USB Descriptors"
+ *  documentation) by the application code so that the address and size of a requested descriptor can be given
+ *  to the USB library. When the device receives a Get Descriptor request on the control endpoint, this function
+ *  is called so that the descriptor details can be passed back and the appropriate descriptor sent back to the
+ *  USB host.
+ */
+uint16_t CALLBACK_USB_GetDescriptor(const uint16_t wValue,
+                                    const uint16_t wIndex,
+                                    const void** const DescriptorAddress)
+{
+	const uint8_t  DescriptorType   = (wValue >> 8);
+	const uint8_t  DescriptorNumber = (wValue & 0xFF);
+
+	const void* Address = NULL;
+	uint16_t    Size    = NO_DESCRIPTOR;
+
+	switch (DescriptorType)
+	{
+		case DTYPE_Device:
+			Address = &DeviceDescriptor;
+			Size    = sizeof(USB_Descriptor_Device_t);
+			break;
+		case DTYPE_Configuration:
+			Address = &ConfigurationDescriptor;
+			Size    = sizeof(USB_Descriptor_Configuration_t);
+			break;
+		case DTYPE_String:
+			switch (DescriptorNumber)
+			{
+				case STRING_ID_Language:
+					Address = &LanguageString;
+					Size    = pgm_read_byte(&LanguageString.Header.Size);
+					break;
+				case STRING_ID_Manufacturer:
+					Address = &ManufacturerString;
+					Size    = pgm_read_byte(&ManufacturerString.Header.Size);
+					break;
+				case STRING_ID_Product:
+					Address = &ProductString;
+					Size    = pgm_read_byte(&ProductString.Header.Size);
+					break;
+			}
+
+			break;
+		case DTYPE_HID:
+			Address = &ConfigurationDescriptor.HID_JoystickHID;
+			Size    = sizeof(USB_HID_Descriptor_HID_t);
+			break;
+		case DTYPE_Report:
+			Address = &JoystickReport;
+			Size    = sizeof(JoystickReport);
+			break;
+	}
+
+	*DescriptorAddress = Address;
+	return Size;
+}
+
diff --git a/lib/lufa/Demos/Device/LowLevel/Joystick/Descriptors.h b/lib/lufa/Demos/Device/LowLevel/Joystick/Descriptors.h
new file mode 100644
index 0000000000..30ab1059b0
--- /dev/null
+++ b/lib/lufa/Demos/Device/LowLevel/Joystick/Descriptors.h
@@ -0,0 +1,99 @@
+/*
+             LUFA Library
+     Copyright (C) Dean Camera, 2017.
+
+  dean [at] fourwalledcubicle [dot] com
+           www.lufa-lib.org
+*/
+
+/*
+  Copyright 2017  Dean Camera (dean [at] fourwalledcubicle [dot] com)
+
+  Permission to use, copy, modify, distribute, and sell this
+  software and its documentation for any purpose is hereby granted
+  without fee, provided that the above copyright notice appear in
+  all copies and that both that the copyright notice and this
+  permission notice and warranty disclaimer appear in supporting
+  documentation, and that the name of the author not be used in
+  advertising or publicity pertaining to distribution of the
+  software without specific, written prior permission.
+
+  The author disclaims all warranties with regard to this
+  software, including all implied warranties of merchantability
+  and fitness.  In no event shall the author be liable for any
+  special, indirect or consequential damages or any damages
+  whatsoever resulting from loss of use, data or profits, whether
+  in an action of contract, negligence or other tortious action,
+  arising out of or in connection with the use or performance of
+  this software.
+*/
+
+/** \file
+ *
+ *  Header file for Descriptors.c.
+ */
+
+#ifndef _DESCRIPTORS_H_
+#define _DESCRIPTORS_H_
+
+	/* Includes: */
+		#include <LUFA/Drivers/USB/USB.h>
+
+		#include <avr/pgmspace.h>
+
+	/* Type Defines: */
+		/** Type define for the device configuration descriptor structure. This must be defined in the
+		 *  application code, as the configuration descriptor contains several sub-descriptors which
+		 *  vary between devices, and which describe the device's usage to the host.
+		 */
+		typedef struct
+		{
+			USB_Descriptor_Configuration_Header_t Config;
+
+			// Joystick HID Interface
+			USB_Descriptor_Interface_t            HID_Interface;
+			USB_HID_Descriptor_HID_t              HID_JoystickHID;
+			USB_Descriptor_Endpoint_t             HID_ReportINEndpoint;
+		} USB_Descriptor_Configuration_t;
+
+		/** Enum for the device interface descriptor IDs within the device. Each interface descriptor
+		 *  should have a unique ID index associated with it, which can be used to refer to the
+		 *  interface from other descriptors.
+		 */
+		enum InterfaceDescriptors_t
+		{
+			INTERFACE_ID_Joystick = 0, /**< Joystick interface descriptor ID */
+		};
+
+		/** Enum for the device string descriptor IDs within the device. Each string descriptor should
+		 *  have a unique ID index associated with it, which can be used to refer to the string from
+		 *  other descriptors.
+		 */
+		enum StringDescriptors_t
+		{
+			STRING_ID_Language     = 0, /**< Supported Languages string descriptor ID (must be zero) */
+			STRING_ID_Manufacturer = 1, /**< Manufacturer string ID */
+			STRING_ID_Product      = 2, /**< Product string ID */
+		};
+
+	/* Macros: */
+		/** Endpoint address of the Joystick HID reporting IN endpoint. */
+		#define JOYSTICK_EPADDR           (ENDPOINT_DIR_IN | 1)
+
+		/** Size in bytes of the Joystick HID reporting IN endpoint. */
+		#define JOYSTICK_EPSIZE           8
+
+		/** Descriptor header type value, to indicate a HID class HID descriptor. */
+		#define DTYPE_HID                 0x21
+
+		/** Descriptor header type value, to indicate a HID class HID report descriptor. */
+		#define DTYPE_Report              0x22
+
+	/* Function Prototypes: */
+		uint16_t CALLBACK_USB_GetDescriptor(const uint16_t wValue,
+		                                    const uint16_t wIndex,
+		                                    const void** const DescriptorAddress)
+		                                    ATTR_WARN_UNUSED_RESULT ATTR_NON_NULL_PTR_ARG(3);
+
+#endif
+
diff --git a/lib/lufa/Demos/Device/LowLevel/Joystick/Joystick.c b/lib/lufa/Demos/Device/LowLevel/Joystick/Joystick.c
new file mode 100644
index 0000000000..7536d1a5fe
--- /dev/null
+++ b/lib/lufa/Demos/Device/LowLevel/Joystick/Joystick.c
@@ -0,0 +1,217 @@
+/*
+             LUFA Library
+     Copyright (C) Dean Camera, 2017.
+
+  dean [at] fourwalledcubicle [dot] com
+           www.lufa-lib.org
+*/
+
+/*
+  Copyright 2017  Dean Camera (dean [at] fourwalledcubicle [dot] com)
+
+  Permission to use, copy, modify, distribute, and sell this
+  software and its documentation for any purpose is hereby granted
+  without fee, provided that the above copyright notice appear in
+  all copies and that both that the copyright notice and this
+  permission notice and warranty disclaimer appear in supporting
+  documentation, and that the name of the author not be used in
+  advertising or publicity pertaining to distribution of the
+  software without specific, written prior permission.
+
+  The author disclaims all warranties with regard to this
+  software, including all implied warranties of merchantability
+  and fitness.  In no event shall the author be liable for any
+  special, indirect or consequential damages or any damages
+  whatsoever resulting from loss of use, data or profits, whether
+  in an action of contract, negligence or other tortious action,
+  arising out of or in connection with the use or performance of
+  this software.
+*/
+
+/** \file
+ *
+ *  Main source file for the Joystick demo. This file contains the main tasks of the demo and
+ *  is responsible for the initial application hardware configuration.
+ */
+
+#include "Joystick.h"
+
+/** Main program entry point. This routine configures the hardware required by the application, then
+ *  enters a loop to run the application tasks in sequence.
+ */
+int main(void)
+{
+	SetupHardware();
+
+	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
+	GlobalInterruptEnable();
+
+	for (;;)
+	{
+		HID_Task();
+		USB_USBTask();
+	}
+}
+
+/** Configures the board hardware and chip peripherals for the demo's functionality. */
+void SetupHardware(void)
+{
+#if (ARCH == ARCH_AVR8)
+	/* Disable watchdog if enabled by bootloader/fuses */
+	MCUSR &= ~(1 << WDRF);
+	wdt_disable();
+
+	/* Disable clock division */
+	clock_prescale_set(clock_div_1);
+#elif (ARCH == ARCH_XMEGA)
+	/* Start the PLL to multiply the 2MHz RC oscillator to 32MHz and switch the CPU core to run from it */
+	XMEGACLK_StartPLL(CLOCK_SRC_INT_RC2MHZ, 2000000, F_CPU);
+	XMEGACLK_SetCPUClockSource(CLOCK_SRC_PLL);
+
+	/* Start the 32MHz internal RC oscillator and start the DFLL to increase it to 48MHz using the USB SOF as a reference */
+	XMEGACLK_StartInternalOscillator(CLOCK_SRC_INT_RC32MHZ);
+	XMEGACLK_StartDFLL(CLOCK_SRC_INT_RC32MHZ, DFLL_REF_INT_USBSOF, F_USB);
+
+	PMIC.CTRL = PMIC_LOLVLEN_bm | PMIC_MEDLVLEN_bm | PMIC_HILVLEN_bm;
+#endif
+
+	/* Hardware Initialization */
+	Joystick_Init();
+	LEDs_Init();
+	Buttons_Init();
+	USB_Init();
+}
+
+/** Event handler for the USB_Connect event. This indicates that the device is enumerating via the status LEDs and
+ *  starts the library USB task to begin the enumeration and USB management process.
+ */
+void EVENT_USB_Device_Connect(void)
+{
+	/* Indicate USB enumerating */
+	LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);
+}
+
+/** Event handler for the USB_Disconnect event. This indicates that the device is no longer connected to a host via
+ *  the status LEDs and stops the USB management and joystick reporting tasks.
+ */
+void EVENT_USB_Device_Disconnect(void)
+{
+	/* Indicate USB not ready */
+	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
+}
+
+/** Event handler for the USB_ConfigurationChanged event. This is fired when the host set the current configuration
+ *  of the USB device after enumeration - the device endpoints are configured and the joystick reporting task started.
+ */
+void EVENT_USB_Device_ConfigurationChanged(void)
+{
+	bool ConfigSuccess = true;
+
+	/* Setup HID Report Endpoint */
+	ConfigSuccess &= Endpoint_ConfigureEndpoint(JOYSTICK_EPADDR, EP_TYPE_INTERRUPT, JOYSTICK_EPSIZE, 1);
+
+	/* Indicate endpoint configuration success or failure */
+	LEDs_SetAllLEDs(ConfigSuccess ? LEDMASK_USB_READY : LEDMASK_USB_ERROR);
+}
+
+/** Event handler for the USB_ControlRequest event. This is used to catch and process control requests sent to
+ *  the device from the USB host before passing along unhandled control requests to the library for processing
+ *  internally.
+ */
+void EVENT_USB_Device_ControlRequest(void)
+{
+	/* Handle HID Class specific requests */
+	switch (USB_ControlRequest.bRequest)
+	{
+		case HID_REQ_GetReport:
+			if (USB_ControlRequest.bmRequestType == (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE))
+			{
+				USB_JoystickReport_Data_t JoystickReportData;
+
+				/* Create the next HID report to send to the host */
+				GetNextReport(&JoystickReportData);
+
+				Endpoint_ClearSETUP();
+
+				/* Write the report data to the control endpoint */
+				Endpoint_Write_Control_Stream_LE(&JoystickReportData, sizeof(JoystickReportData));
+				Endpoint_ClearOUT();
+			}
+
+			break;
+	}
+}
+
+/** Fills the given HID report data structure with the next HID report to send to the host.
+ *
+ *  \param[out] ReportData  Pointer to a HID report data structure to be filled
+ *
+ *  \return Boolean \c true if the new report differs from the last report, \c false otherwise
+ */
+bool GetNextReport(USB_JoystickReport_Data_t* const ReportData)
+{
+	static uint8_t PrevJoyStatus    = 0;
+	static uint8_t PrevButtonStatus = 0;
+	uint8_t        JoyStatus_LCL    = Joystick_GetStatus();
+	uint8_t        ButtonStatus_LCL = Buttons_GetStatus();
+	bool           InputChanged     = false;
+
+	/* Clear the report contents */
+	memset(ReportData, 0, sizeof(USB_JoystickReport_Data_t));
+
+	if (JoyStatus_LCL & JOY_UP)
+	  ReportData->Y = -100;
+	else if (JoyStatus_LCL & JOY_DOWN)
+	  ReportData->Y =  100;
+
+	if (JoyStatus_LCL & JOY_LEFT)
+	  ReportData->X = -100;
+	else if (JoyStatus_LCL & JOY_RIGHT)
+	  ReportData->X =  100;
+
+	if (JoyStatus_LCL & JOY_PRESS)
+	  ReportData->Button |= (1 << 1);
+
+	if (ButtonStatus_LCL & BUTTONS_BUTTON1)
+	  ReportData->Button |= (1 << 0);
+
+	/* Check if the new report is different to the previous report */
+	InputChanged = (uint8_t)(PrevJoyStatus ^ JoyStatus_LCL) | (uint8_t)(PrevButtonStatus ^ ButtonStatus_LCL);
+
+	/* Save the current joystick status for later comparison */
+	PrevJoyStatus    = JoyStatus_LCL;
+	PrevButtonStatus = ButtonStatus_LCL;
+
+	/* Return whether the new report is different to the previous report or not */
+	return InputChanged;
+}
+
+/** Function to manage HID report generation and transmission to the host. */
+void HID_Task(void)
+{
+	/* Device must be connected and configured for the task to run */
+	if (USB_DeviceState != DEVICE_STATE_Configured)
+	  return;
+
+	/* Select the Joystick Report Endpoint */
+	Endpoint_SelectEndpoint(JOYSTICK_EPADDR);
+
+	/* Check to see if the host is ready for another packet */
+	if (Endpoint_IsINReady())
+	{
+		USB_JoystickReport_Data_t JoystickReportData;
+
+		/* Create the next HID report to send to the host */
+		GetNextReport(&JoystickReportData);
+
+		/* Write Joystick Report Data */
+		Endpoint_Write_Stream_LE(&JoystickReportData, sizeof(JoystickReportData), NULL);
+
+		/* Finalize the stream transfer to send the last packet */
+		Endpoint_ClearIN();
+
+		/* Clear the report data afterwards */
+		memset(&JoystickReportData, 0, sizeof(JoystickReportData));
+	}
+}
+
diff --git a/lib/lufa/Demos/Device/LowLevel/Joystick/Joystick.h b/lib/lufa/Demos/Device/LowLevel/Joystick/Joystick.h
new file mode 100644
index 0000000000..d5fdcccbd3
--- /dev/null
+++ b/lib/lufa/Demos/Device/LowLevel/Joystick/Joystick.h
@@ -0,0 +1,91 @@
+/*
+             LUFA Library
+     Copyright (C) Dean Camera, 2017.
+
+  dean [at] fourwalledcubicle [dot] com
+           www.lufa-lib.org
+*/
+
+/*
+  Copyright 2017  Dean Camera (dean [at] fourwalledcubicle [dot] com)
+
+  Permission to use, copy, modify, distribute, and sell this
+  software and its documentation for any purpose is hereby granted
+  without fee, provided that the above copyright notice appear in
+  all copies and that both that the copyright notice and this
+  permission notice and warranty disclaimer appear in supporting
+  documentation, and that the name of the author not be used in
+  advertising or publicity pertaining to distribution of the
+  software without specific, written prior permission.
+
+  The author disclaims all warranties with regard to this
+  software, including all implied warranties of merchantability
+  and fitness.  In no event shall the author be liable for any
+  special, indirect or consequential damages or any damages
+  whatsoever resulting from loss of use, data or profits, whether
+  in an action of contract, negligence or other tortious action,
+  arising out of or in connection with the use or performance of
+  this software.
+*/
+
+/** \file
+ *
+ *  Header file for Joystick.c.
+ */
+
+#ifndef _JOYSTICK_H_
+#define _JOYSTICK_H_
+
+	/* Includes: */
+		#include <avr/io.h>
+		#include <avr/wdt.h>
+		#include <avr/power.h>
+		#include <avr/interrupt.h>
+		#include <string.h>
+
+		#include "Descriptors.h"
+
+		#include <LUFA/Drivers/USB/USB.h>
+		#include <LUFA/Drivers/Board/Joystick.h>
+		#include <LUFA/Drivers/Board/LEDs.h>
+		#include <LUFA/Drivers/Board/Buttons.h>
+		#include <LUFA/Platform/Platform.h>
+
+	/* Macros: */
+		/** LED mask for the library LED driver, to indicate that the USB interface is not ready. */
+		#define LEDMASK_USB_NOTREADY      LEDS_LED1
+
+		/** LED mask for the library LED driver, to indicate that the USB interface is enumerating. */
+		#define LEDMASK_USB_ENUMERATING  (LEDS_LED2 | LEDS_LED3)
+
+		/** LED mask for the library LED driver, to indicate that the USB interface is ready. */
+		#define LEDMASK_USB_READY        (LEDS_LED2 | LEDS_LED4)
+
+		/** LED mask for the library LED driver, to indicate that an error has occurred in the USB interface. */
+		#define LEDMASK_USB_ERROR        (LEDS_LED1 | LEDS_LED3)
+
+	/* Type Defines: */
+		/** Type define for the joystick HID report structure, for creating and sending HID reports to the host PC.
+		 *  This mirrors the layout described to the host in the HID report descriptor, in Descriptors.c.
+		 */
+		typedef struct
+		{
+			int8_t  X; /**< Current absolute joystick X position, as a signed 8-bit integer */
+			int8_t  Y; /**< Current absolute joystick Y position, as a signed 8-bit integer */
+			int8_t  Z; /**< Current absolute joystick Z position, as a signed 8-bit integer */
+			uint8_t Button; /**< Bit mask of the currently pressed joystick buttons */
+		} USB_JoystickReport_Data_t;
+
+	/* Function Prototypes: */
+		void SetupHardware(void);
+		void HID_Task(void);
+
+		void EVENT_USB_Device_Connect(void);
+		void EVENT_USB_Device_Disconnect(void);
+		void EVENT_USB_Device_ConfigurationChanged(void);
+		void EVENT_USB_Device_ControlRequest(void);
+
+		bool GetNextReport(USB_JoystickReport_Data_t* const ReportData);
+
+#endif
+
diff --git a/lib/lufa/Demos/Device/LowLevel/Joystick/Joystick.txt b/lib/lufa/Demos/Device/LowLevel/Joystick/Joystick.txt
new file mode 100644
index 0000000000..b174642f4c
--- /dev/null
+++ b/lib/lufa/Demos/Device/LowLevel/Joystick/Joystick.txt
@@ -0,0 +1,77 @@
+/** \file
+ *
+ *  This file contains special DoxyGen information for the generation of the main page and other special
+ *  documentation pages. It is not a project source file.
+ */
+
+/** \mainpage Joystick Device Demo
+ *
+ *  \section Sec_Compat Demo Compatibility:
+ *
+ *  The following list indicates what microcontrollers are compatible with this demo.
+ *
+ *  \li Series 7 USB AVRs (AT90USBxxx7)
+ *  \li Series 6 USB AVRs (AT90USBxxx6)
+ *  \li Series 4 USB AVRs (ATMEGAxxU4)
+ *  \li Series 2 USB AVRs (AT90USBxx2, ATMEGAxxU2)
+ *  \li Series AU XMEGA AVRs (ATXMEGAxxxAxU)
+ *  \li Series B XMEGA AVRs (ATXMEGAxxxBx)
+ *  \li Series C XMEGA AVRs (ATXMEGAxxxCx)
+ *
+ *  \section Sec_Info USB Information:
+ *
+ *  The following table gives a rundown of the USB utilization of this demo.
+ *
+ *  <table>
+ *   <tr>
+ *    <td><b>USB Mode:</b></td>
+ *    <td>Device</td>
+ *   </tr>
+ *   <tr>
+ *    <td><b>USB Class:</b></td>
+ *    <td>Human Interface Device (HID)</td>
+ *   </tr>
+ *   <tr>
+ *    <td><b>USB Subclass:</b></td>
+ *    <td>N/A</td>
+ *   </tr>
+ *   <tr>
+ *    <td><b>Relevant Standards:</b></td>
+ *    <td>USBIF HID Specification \n
+ *        USBIF HID Usage Tables</td>
+ *   </tr>
+ *   <tr>
+ *    <td><b>Supported USB Speeds:</b></td>
+ *    <td>Low Speed Mode \n
+ *        Full Speed Mode</td>
+ *   </tr>
+ *  </table>
+ *
+ *  \section Sec_Description Project Description:
+ *
+ *  Joystick demonstration application. This gives a simple reference
+ *  application for implementing a USB Keyboard device, for USB Joysticks
+ *  using the standard Keyboard HID profile.
+ *
+ *  This device will show up as a generic joystick device, with two buttons.
+ *  Pressing the joystick inwards is the first button, and the HWB button
+ *  is the second.
+ *
+ *  Moving the joystick on the selected board moves the joystick location on
+ *  the host computer.
+ *
+ *  Currently only single interface joysticks are supported.
+ *
+ *  \section Sec_Options Project Options
+ *
+ *  The following defines can be found in this demo, which can control the demo behaviour when defined, or changed in value.
+ *
+ *  <table>
+ *   <tr>
+ *    <td>
+ *     None
+ *    </td>
+ *   </tr>
+ *  </table>
+ */
+
diff --git a/lib/lufa/Demos/Device/LowLevel/Joystick/asf.xml b/lib/lufa/Demos/Device/LowLevel/Joystick/asf.xml
new file mode 100644
index 0000000000..d37741bace
--- /dev/null
+++ b/lib/lufa/Demos/Device/LowLevel/Joystick/asf.xml
@@ -0,0 +1,62 @@
+<asf xmlversion="1.0">

+	<project caption="Joystick HID Device Demo (Low Level APIs)" id="lufa.demos.device.lowlevel.joystick.example.avr8">

+		<require idref="lufa.demos.device.lowlevel.joystick"/>

+		<require idref="lufa.boards.dummy.avr8"/>

+		<generator value="as5_8"/>

+

+		<device-support value="at90usb1287"/>

+		<config name="lufa.drivers.board.name" value="none"/>

+

+		<build type="define" name="F_CPU" value="16000000UL"/>

+		<build type="define" name="F_USB" value="16000000UL"/>

+	</project>

+

+	<project caption="Joystick HID Device Demo (Low Level APIs)" id="lufa.demos.device.lowlevel.joystick.example.xmega">

+		<require idref="lufa.demos.device.lowlevel.joystick"/>

+		<require idref="lufa.boards.dummy.xmeg