Merge pull request #1471 from qmk/lufa_lib

Update LUFA and move it to /lib/lufa

7 files changed, 1665 insertions, 0 deletions

diff --git a/lib/lufa/LUFA/Common/ArchitectureSpecific.h b/lib/lufa/LUFA/Common/ArchitectureSpecific.h
new file mode 100644
index 0000000000..28f2900b96
--- /dev/null
+++ b/lib/lufa/LUFA/Common/ArchitectureSpecific.h
@@ -0,0 +1,185 @@
+/*
+             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 Architecture specific definitions relating to specific processor architectures.
+ *
+ *  \copydetails Group_ArchitectureSpecific
+ *
+ *  \note Do not include this file directly, rather include the Common.h header file instead to gain this file's
+ *        functionality.
+ */
+
+/** \ingroup Group_Common
+ *  \defgroup Group_ArchitectureSpecific Architecture Specific Definitions
+ *  \brief Architecture specific definitions relating to specific processor architectures.
+ *
+ *  Architecture specific macros, functions and other definitions, which relate to specific architectures. This
+ *  definitions may or may not be available in some form on other architectures, and thus should be protected by
+ *  preprocessor checks in portable code to prevent compile errors.
+ *
+ *  @{
+ */
+
+#ifndef __LUFA_ARCHSPEC_H__
+#define __LUFA_ARCHSPEC_H__
+
+	/* Preprocessor Checks: */
+		#if !defined(__INCLUDE_FROM_COMMON_H)
+			#error Do not include this file directly. Include LUFA/Common/Common.h instead to gain this functionality.
+		#endif
+
+	/* Enable C linkage for C++ Compilers: */
+		#if defined(__cplusplus)
+			extern "C" {
+		#endif
+
+	/* Public Interface - May be used in end-application: */
+		/* Macros: */
+			#if (ARCH == ARCH_AVR8) || (ARCH == ARCH_XMEGA) || defined(__DOXYGEN__)
+				#if (ARCH == ARCH_AVR8) || defined(__DOXYGEN__)
+					/** Re-enables the AVR's JTAG bus in software, until a system reset. This will re-enable JTAG debugging
+					 *  interface after is has been disabled in software via \ref JTAG_DISABLE().
+					 *
+					 *  \note This macro is not available for all architectures.
+					 */
+					#define JTAG_ENABLE()               do {                                     \
+					                                        __asm__ __volatile__ (               \
+					                                        "in __tmp_reg__,__SREG__" "\n\t"     \
+					                                        "cli" "\n\t"                         \
+					                                        "out %1, %0" "\n\t"                  \
+					                                        "out __SREG__, __tmp_reg__" "\n\t"   \
+					                                        "out %1, %0" "\n\t"                  \
+					                                        :                                    \
+					                                        : "r" (MCUCR & ~(1 << JTD)),         \
+					                                          "M" (_SFR_IO_ADDR(MCUCR))          \
+					                                        : "r0");                             \
+					                                    } while (0)
+
+					/** Disables the AVR's JTAG bus in software, until a system reset. This will override the current JTAG
+					 *  status as set by the JTAGEN fuse, disabling JTAG debugging and reverting the JTAG pins back to GPIO
+					 *  mode.
+					 *
+					 *  \note This macro is not available for all architectures.
+					 */
+					#define JTAG_DISABLE()              do {                                     \
+					                                        __asm__ __volatile__ (               \
+					                                        "in __tmp_reg__,__SREG__" "\n\t"     \
+					                                        "cli" "\n\t"                         \
+					                                        "out %1, %0" "\n\t"                  \
+					                                        "out __SREG__, __tmp_reg__" "\n\t"   \
+					                                        "out %1, %0" "\n\t"                  \
+					                                        :                                    \
+					                                        : "r" (MCUCR | (1 << JTD)),          \
+					                                          "M" (_SFR_IO_ADDR(MCUCR))          \
+					                                        : "r0");                             \
+					                                    } while (0)
+				#endif
+
+				/** Defines a volatile \c NOP statement which cannot be optimized out by the compiler, and thus can always
+				 *  be set as a breakpoint in the resulting code. Useful for debugging purposes, where the optimizer
+				 *  removes/reorders code to the point where break points cannot reliably be set.
+				 *
+				 *  \note This macro is not available for all architectures.
+				 */
+				#define JTAG_DEBUG_POINT()              __asm__ __volatile__ ("nop" ::)
+
+				/** Defines an explicit JTAG break point in the resulting binary via the assembly \c BREAK statement. When
+				 *  a JTAG is used, this causes the program execution to halt when reached until manually resumed.
+				 *
+				 *  \note This macro is not available for all architectures.
+				 */
+				#define JTAG_DEBUG_BREAK()              __asm__ __volatile__ ("break" ::)
+
+				/** Macro for testing condition "x" and breaking via \ref JTAG_DEBUG_BREAK() if the condition is false.
+				 *
+				 *  \note This macro is not available for all architectures.
+				 *
+				 *  \param[in] Condition  Condition that will be evaluated.
+				*/
+				#define JTAG_ASSERT(Condition)          do {                       \
+				                                            if (!(Condition))      \
+				                                              JTAG_DEBUG_BREAK();  \
+				                                        } while (0)
+
+				/** Macro for testing condition \c "x" and writing debug data to the stdout stream if \c false. The stdout stream
+				 *  must be pre-initialized before this macro is run and linked to an output device, such as the microcontroller's
+				 *  USART peripheral.
+				 *
+				 *  The output takes the form "{FILENAME}: Function {FUNCTION NAME}, Line {LINE NUMBER}: Assertion {Condition} failed."
+				 *
+				 *  \note This macro is not available for all architectures.
+				 *
+				 *  \param[in] Condition  Condition that will be evaluated,
+				 */
+				#define STDOUT_ASSERT(Condition)        do {                                                           \
+				                                            if (!(Condition))                                          \
+				                                              printf_P(PSTR("%s: Function \"%s\", Line %d: "           \
+				                                                            "Assertion \"%s\" failed.\r\n"),           \
+				                                                            __FILE__, __func__, __LINE__, #Condition); \
+				                                        } while (0)
+
+				#if !defined(pgm_read_ptr) || defined(__DOXYGEN__)
+					/** Reads a pointer out of PROGMEM space on the AVR8 architecture. This is a wrapper for the avr-libc
+					 *  \c pgm_read_word() macro with a \c void* cast, so that its value can be assigned directly to a
+					 *  pointer variable or used in pointer arithmetic without further casting in C.
+					 *
+					 *  \note This macro is not available for all architectures.
+					 *
+					 *  \param[in] Address  Address of the pointer to read.
+					 *
+					 *  \return Pointer retrieved from PROGMEM space.
+					 */
+					#define pgm_read_ptr(Address)       (void*)pgm_read_word(Address)
+				#endif
+			#elif (ARCH == ARCH_UC3)
+				#define JTAG_DEBUG_POINT()              __asm__ __volatile__ ("nop" ::)
+				#define JTAG_DEBUG_BREAK()              __asm__ __volatile__ ("breakpoint" ::)
+				#define JTAG_ASSERT(Condition)          do {                                                    \
+				                                            if (!(Condition))                                   \
+				                                              JTAG_DEBUG_BREAK();                               \
+				                                        } while (0)
+				#define STDOUT_ASSERT(Condition)        do {                                                    \
+				                                            if (!(Condition))                                   \
+				                                              printf("%s: Function \"%s\", Line %d: "           \
+				                                                     "Assertion \"%s\" failed.\r\n",            \
+				                                                     __FILE__, __func__, __LINE__, #Condition); \
+				                                        } while (0)
+			#endif
+
+	/* Disable C linkage for C++ Compilers: */
+		#if defined(__cplusplus)
+			}
+		#endif
+
+#endif
+
+/** @} */
+
diff --git a/lib/lufa/LUFA/Common/Architectures.h b/lib/lufa/LUFA/Common/Architectures.h
new file mode 100644
index 0000000000..587367413e
--- /dev/null
+++ b/lib/lufa/LUFA/Common/Architectures.h
@@ -0,0 +1,84 @@
+/*
+             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 Supported library architecture defines.
+ *
+ *  \copydetails Group_Architectures
+ *
+ *  \note Do not include this file directly, rather include the Common.h header file instead to gain this file's
+ *        functionality.
+ */
+
+/** \ingroup Group_Common
+ *  \defgroup Group_Architectures Hardware Architectures
+ *  \brief Supported library architecture defines.
+ *
+ *  Architecture macros for selecting the desired target microcontroller architecture. One of these values should be
+ *  defined as the value of \c ARCH in the user project makefile via the \c -D compiler switch to GCC, to select the
+ *  target architecture.
+ *
+ *  The selected architecture should remain consistent with the makefile \c ARCH value, which is used to select the
+ *  underlying driver source files for each architecture.
+ *
+ *  @{
+ */
+
+#ifndef __LUFA_ARCHITECTURES_H__
+#define __LUFA_ARCHITECTURES_H__
+
+	/* Preprocessor Checks: */
+		#if !defined(__INCLUDE_FROM_COMMON_H)
+			#error Do not include this file directly. Include LUFA/Common/Common.h instead to gain this functionality.
+		#endif
+
+	/* Public Interface - May be used in end-application: */
+		/* Macros: */
+			/** Selects the Atmel 8-bit AVR (AT90USB* and ATMEGA*U* chips) architecture. */
+			#define ARCH_AVR8           0
+
+			/** Selects the Atmel 32-bit UC3 AVR (AT32UC3* chips) architecture. */
+			#define ARCH_UC3            1
+
+			/** Selects the Atmel XMEGA AVR (ATXMEGA* chips) architecture. */
+			#define ARCH_XMEGA          2
+
+			#if !defined(__DOXYGEN__)
+				#define ARCH_           ARCH_AVR8
+
+				#if !defined(ARCH)
+					#define ARCH        ARCH_AVR8
+				#endif
+			#endif
+
+#endif
+
+/** @} */
+
diff --git a/lib/lufa/LUFA/Common/Attributes.h b/lib/lufa/LUFA/Common/Attributes.h
new file mode 100644
index 0000000000..c8e4104d72
--- /dev/null
+++ b/lib/lufa/LUFA/Common/Attributes.h
@@ -0,0 +1,150 @@
+/*
+             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 Special function/variable attribute macros.
+ *
+ *  \copydetails Group_FuncVarAttributes
+ *
+ *  \note Do not include this file directly, rather include the Common.h header file instead to gain this file's
+ *        functionality.
+ */
+
+/** \ingroup Group_Common
+ *  \defgroup Group_FuncVarAttributes Function/Variable Attributes
+ *  \brief Special function/variable attribute macros.
+ *
+ *  This module contains macros for applying specific attributes to functions and variables to control various
+ *  optimizer and code generation features of the compiler. Attributes may be placed in the function prototype
+ *  or variable declaration in any order, and multiple attributes can be specified for a single item via a space
+ *  separated list.
+ *
+ *  On incompatible versions of GCC or on other compilers, these macros evaluate to nothing unless they are
+ *  critical to the code's function and thus must throw a compile error when used.
+ *
+ *  @{
+ */
+
+#ifndef __LUFA_ATTR_H__
+#define __LUFA_ATTR_H__
+
+	/* Preprocessor Checks: */
+		#if !defined(__INCLUDE_FROM_COMMON_H)
+			#error Do not include this file directly. Include LUFA/Common/Common.h instead to gain this functionality.
+		#endif
+
+	/* Public Interface - May be used in end-application: */
+		/* Macros: */
+			#if (__GNUC__ >= 3) || defined(__DOXYGEN__)
+				/** Indicates to the compiler that the function can not ever return, so that any stack restoring or
+				 *  return code may be omitted by the compiler in the resulting binary.
+				 */
+				#define ATTR_NO_RETURN               __attribute__ ((noreturn))
+
+				/** Indicates that the function returns a value which should not be ignored by the user code. When
+				 *  applied, any ignored return value from calling the function will produce a compiler warning.
+				 */
+				#define ATTR_WARN_UNUSED_RESULT      __attribute__ ((warn_unused_result))
+
+				/** Indicates that the specified parameters of the function are pointers which should never be \c NULL.
+				 *  When applied as a 1-based comma separated list the compiler will emit a warning if the specified
+				 *  parameters are known at compiler time to be \c NULL at the point of calling the function.
+				 */
+				#define ATTR_NON_NULL_PTR_ARG(...)   __attribute__ ((nonnull (__VA_ARGS__)))
+
+				/** Removes any preamble or postamble from the function. When used, the function will not have any
+				 *  register or stack saving code. This should be used with caution, and when used the programmer
+				 *  is responsible for maintaining stack and register integrity.
+				 */
+				#define ATTR_NAKED                   __attribute__ ((naked))
+
+				/** Prevents the compiler from considering a specified function for in-lining. When applied, the given
+				 *  function will not be in-lined under any circumstances.
+				 */
+				#define ATTR_NO_INLINE               __attribute__ ((noinline))
+
+				/** Forces the compiler to inline the specified function. When applied, the given function will be
+				 *  in-lined under all circumstances.
+				 */
+				#define ATTR_ALWAYS_INLINE           __attribute__ ((always_inline))
+
+				/** Indicates that the specified function is pure, in that it has no side-effects other than global
+				 *  or parameter variable access.
+				 */
+				#define ATTR_PURE                    __attribute__ ((pure))
+
+				/** Indicates that the specified function is constant, in that it has no side effects other than
+				 *  parameter access.
+				 */
+				#define ATTR_CONST                   __attribute__ ((const))
+
+				/** Marks a given function as deprecated, which produces a warning if the function is called. */
+				#define ATTR_DEPRECATED              __attribute__ ((deprecated))
+
+				/** Marks a function as a weak reference, which can be overridden by other functions with an
+				 *  identical name (in which case the weak reference is discarded at link time).
+				 */
+				#define ATTR_WEAK                    __attribute__ ((weak))
+			#endif
+
+			/** Forces the compiler to not automatically zero the given global variable on startup, so that the
+			 *  current RAM contents is retained. Under most conditions this value will be random due to the
+			 *  behavior of volatile memory once power is removed, but may be used in some specific circumstances,
+			 *  like the passing of values back after a system watchdog reset.
+			 */
+			#define ATTR_NO_INIT                     __attribute__ ((section (".noinit")))
+
+			/** Places the function in one of the initialization sections, which execute before the main function
+			 *  of the application. Refer to the avr-libc manual for more information on the initialization sections.
+			 *
+			 *  \param[in] SectionIndex  Initialization section number where the function should be placed.
+			 */
+			#define ATTR_INIT_SECTION(SectionIndex)  __attribute__ ((used, naked, section (".init" #SectionIndex )))
+
+			/** Marks a function as an alias for another function.
+			 *
+			 *  \param[in] Func  Name of the function which the given function name should alias.
+			 */
+			#define ATTR_ALIAS(Func)                 __attribute__ ((alias( #Func )))
+
+			/** Marks a variable or struct element for packing into the smallest space available, omitting any
+			 *  alignment bytes usually added between fields to optimize field accesses.
+			 */
+			#define ATTR_PACKED                      __attribute__ ((packed))
+
+			/** Indicates the minimum alignment in bytes for a variable or struct element.
+			 *
+			 *  \param[in] Bytes  Minimum number of bytes the item should be aligned to.
+			 */
+			#define ATTR_ALIGNED(Bytes)              __attribute__ ((aligned(Bytes)))
+#endif
+
+/** @} */
+
diff --git a/lib/lufa/LUFA/Common/BoardTypes.h b/lib/lufa/LUFA/Common/BoardTypes.h
new file mode 100644
index 0000000000..e945523427
--- /dev/null
+++ b/lib/lufa/LUFA/Common/BoardTypes.h
@@ -0,0 +1,263 @@
+/*
+             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 Supported pre-made board hardware defines.
+ *
+ *  \copydetails Group_BoardTypes
+ *
+ *  \note Do not include this file directly, rather include the Common.h header file instead to gain this file's
+ *        functionality.
+ */
+
+/** \ingroup Group_Common
+ *  \defgroup Group_BoardTypes Board Types
+ *  \brief Supported pre-made board hardware defines.
+ *
+ *  Board macros for indicating the chosen physical board hardware to the library. These macros should be used when
+ *  defining the \c BOARD token to the chosen hardware via the \c -D switch in the project makefile. If a custom
+ *  board is used, the \ref BOARD_NONE or \ref BOARD_USER values should be selected.
+ *
+ *  @{
+ */
+
+#ifndef __LUFA_BOARDTYPES_H__
+#define __LUFA_BOARDTYPES_H__
+
+	/* Preprocessor Checks: */
+		#if !defined(__INCLUDE_FROM_COMMON_H)
+			#error Do not include this file directly. Include LUFA/Common/Common.h instead to gain this functionality.
+		#endif
+
+	/* Public Interface - May be used in end-application: */
+		/* Macros: */
+			/** Selects the user-defined board drivers, which should be placed in the user project's folder
+			 *  under a directory named \c /Board/. Each board driver should be named identically to the LUFA
+			 *  master board driver (i.e., driver in the \c LUFA/Drivers/Board directory) so that the library
+			 *  can correctly identify it.
+			 */
+			#define BOARD_USER                 0
+
+			/** Disables board drivers when operation will not be adversely affected (e.g. LEDs) - use of board drivers
+			 *  such as the Joystick driver, where the removal would adversely affect the code's operation is still disallowed. */
+			#define BOARD_NONE                 1
+
+			/** Selects the USBKEY specific board drivers, including Temperature, Button, Dataflash, Joystick and LED drivers. */
+			#define BOARD_USBKEY               2
+
+			/** Selects the STK525 specific board drivers, including Temperature, Button, Dataflash, Joystick and LED drivers. */
+			#define BOARD_STK525               3
+
+			/** Selects the STK526 specific board drivers, including Temperature, Button, Dataflash, Joystick and LED drivers. */
+			#define BOARD_STK526               4
+
+			/** Selects the RZUSBSTICK specific board drivers, including the driver for the boards LEDs. */
+			#define BOARD_RZUSBSTICK           5
+
+			/** Selects the ATAVRUSBRF01 specific board drivers, including the driver for the board LEDs. */
+			#define BOARD_ATAVRUSBRF01         6
+
+			/** Selects the BUMBLEB specific board drivers, using the officially recommended peripheral layout. */
+			#define BOARD_BUMBLEB              7
+
+			/** Selects the XPLAIN (Revision 2 or newer) specific board drivers, including LED and Dataflash drivers. */
+			#define BOARD_XPLAIN               8
+
+			/** Selects the XPLAIN (Revision 1) specific board drivers, including LED and Dataflash drivers. */
+			#define BOARD_XPLAIN_REV1          9
+
+			/** Selects the EVK527 specific board drivers, including Temperature, Button, Dataflash, Joystick and LED drivers. */
+			#define BOARD_EVK527               10
+
+			/** Selects the Teensy version 1.x specific board drivers, including the driver for the board LEDs. */
+			#define BOARD_TEENSY               11
+
+			/** Selects the USBTINY MKII specific board drivers, including the Button and LEDs drivers. */
+			#define BOARD_USBTINYMKII          12
+
+			/** Selects the Benito specific board drivers, including the Button and LEDs drivers. */
+			#define BOARD_BENITO               13
+
+			/** Selects the JM-DB-U2 specific board drivers, including the Button and LEDs drivers. */
+			#define BOARD_JMDBU2               14
+
+			/** Selects the Olimex AVR-USB-162 specific board drivers, including the Button and LEDs drivers. */
+			#define BOARD_OLIMEX162            15
+
+			/** Selects the UDIP specific board drivers, including the Button and LEDs drivers. */
+			#define BOARD_UDIP                 16
+
+			/** Selects the BUI specific board drivers, including the driver for the board LEDs. */
+			#define BOARD_BUI                  17
+
+			/** Selects the Arduino Uno specific board drivers, including the driver for the board LEDs. */
+			#define BOARD_UNO                  18
+
+			/** Selects the Busware CUL V3 specific board drivers, including the Button and LEDs drivers. */
+			#define BOARD_CULV3                19
+
+			/** Selects the Blackcat USB JTAG specific board drivers, including the driver for the board LEDs. */
+			#define BOARD_BLACKCAT             20
+
+			/** Selects the Maximus specific board drivers, including the driver for the board LEDs. */
+			#define BOARD_MAXIMUS              21
+
+			/** Selects the Minimus specific board drivers, including the Button and LEDs drivers. */
+			#define BOARD_MINIMUS              22
+
+			/** Selects the Adafruit U4 specific board drivers, including the Button driver. */
+			#define BOARD_ADAFRUITU4           23
+
+			/** Selects the Microsin AVR-USB162 specific board drivers, including the Button and LEDs drivers. */
+			#define BOARD_MICROSIN162          24
+
+			/** Selects the Kernel Concepts USBFOO specific board drivers, including the Button and LEDs drivers. */
+			#define BOARD_USBFOO               25
+
+			/** Selects the Sparkfun ATMEGA8U2 specific board drivers, including the driver for the board LEDs. */
+			#define BOARD_SPARKFUN8U2          26
+
+			/** Selects the Atmel EVK1101 specific board drivers, including the Button, Joystick and LED drivers. */
+			#define BOARD_EVK1101              27
+
+			/** Selects the Busware TUL specific board drivers, including the Button and LED drivers. */
+			#define BOARD_TUL                  28
+
+			/** Selects the Atmel EVK1100 specific board drivers, including the Button, Joystick and LED drivers. */
+			#define BOARD_EVK1100              29
+
+			/** Selects the Atmel EVK1104 specific board drivers, including the Button and LED drivers. */
+			#define BOARD_EVK1104              30
+
+			/** Selects the Atmel XMEGA A3BU Xplained specific board drivers, including Dataflash, Button and LED drivers. */
+			#define BOARD_A3BU_XPLAINED        31
+
+			/** Selects the Teensy version 2.x specific board drivers, including the driver for the board LEDs. */
+			#define BOARD_TEENSY2              32
+
+			/** Selects the USB2AX version 1 and 2 specific board drivers, including the Button and LEDs drivers. */
+			#define BOARD_USB2AX               33
+
+			/** Selects the USB2AX version 3 specific board drivers, including the Button and LEDs drivers. */
+			#define BOARD_USB2AX_V3            34
+
+			/** Selects the Micropendous 32U2 specific board drivers, including the Button and LED drivers. */
+			#define BOARD_MICROPENDOUS_32U2    35
+
+			/** Selects the Micropendous A specific board drivers, including the driver for the board Button. */
+			#define BOARD_MICROPENDOUS_A       36
+
+			/** Selects the Micropendous 1 specific board drivers, including the driver for the board Button. */
+			#define BOARD_MICROPENDOUS_1       37
+
+			/** Selects the Micropendous 2 specific board drivers, including the driver for the board Button. */
+			#define BOARD_MICROPENDOUS_2       38
+
+			/** Selects the Micropendous 3 specific board drivers, including the driver for the board Button. */
+			#define BOARD_MICROPENDOUS_3       39
+
+			/** Selects the Micropendous 4 specific board drivers, including the driver for the board Button. */
+			#define BOARD_MICROPENDOUS_4       40
+
+			/** Selects the Micropendous DIP specific board drivers, including the driver for the board Button. */
+			#define BOARD_MICROPENDOUS_DIP     41
+
+			/** Selects the Micropendous (Arduino-like) revision 1 specific board drivers, including the Button and LED drivers. */
+			#define BOARD_MICROPENDOUS_REV1    42
+
+			/** Selects the Micropendous (Arduino-like) revision 2 specific board drivers, including the Button and LED drivers. */
+			#define BOARD_MICROPENDOUS_REV2    43
+
+			/** Selects the XMEGA B1 Xplained specific board drivers, including the Button and LED drivers. */
+			#define BOARD_B1_XPLAINED          44
+
+			/** Selects the Bitwizard Multio specific board drivers, including the driver for the board LEDs. */
+			#define BOARD_MULTIO               45
+
+			/** Selects the Bitwizard Big-Multio specific board drivers, including the driver for the board LEDs. */
+			#define BOARD_BIGMULTIO            46
+
+			/** Selects the DorkbotPDX Duce specific board drivers, including the driver for the board LEDs. */
+			#define BOARD_DUCE                 47
+
+			/** Selects the Olimex AVR-USB-32U4 specific board drivers, including the Button and LED drivers. */
+			#define BOARD_OLIMEX32U4           48
+
+			/** Selects the Olimex AVR-USB-T32U4 specific board drivers, including the Button and LED drivers. */
+			#define BOARD_OLIMEXT32U4          49
+
+			/** Selects the Olimex AVR-ISP-MK2 specific board drivers, including the Button and LED drivers. */
+			#define BOARD_OLIMEXISPMK2         50
+
+			/** Selects the Arduino Leonardo specific board drivers, including the driver for the board LEDs. */
+			#define BOARD_LEONARDO             51
+
+			/** Selects the UC3-A3 Xplained specific board drivers, including the Button and LED drivers. */
+			#define BOARD_UC3A3_XPLAINED       52
+
+			/** Selects the USB2AX version 3.1 specific board drivers, including the Button and LEDs drivers. */
+			#define BOARD_USB2AX_V31           53
+
+			/** Selects the Stange-ISP specific board drivers, including the Button and LEDs drivers. */
+			#define BOARD_STANGE_ISP           54
+
+			/** Selects the XMEGA C3 XPLAINED specific board drivers, including the Button and LEDs drivers. */
+			#define BOARD_C3_XPLAINED          55
+
+			/** Selects the U2S specific board drivers, including the Button and LEDs drivers. */
+			#define BOARD_U2S                  56
+
+			/** Selects the Arduino YUN specific board drivers, including the driver for the board LEDs. */
+			#define BOARD_YUN                  57
+
+			/** Selects the Arduino Micro specific board drivers, including the driver for the board LEDs. */
+			#define BOARD_MICRO                58
+
+			/** Selects the Pololu A-Star Micro specific board drivers, including the driver for the board LEDs. */
+			#define BOARD_POLOLUMICRO          59
+
+			/** Selects the Atmel Xplained-MINI specific board drivers, including the driver for the board LEDs. */
+			#define BOARD_XPLAINED_MINI        60
+
+			/** Selects the QMK specific board drivres, including the driver for the board LEDs. */
+			#define BOARD_QMK                  61
+
+			#if !defined(__DOXYGEN__)
+				#define BOARD_                 BOARD_NONE
+
+				#if !defined(BOARD)
+					#define BOARD              BOARD_NONE
+				#endif
+			#endif
+
+#endif
+
+/** @} */
+
diff --git a/lib/lufa/LUFA/Common/Common.h b/lib/lufa/LUFA/Common/Common.h
new file mode 100644
index 0000000000..6864eb64ca
--- /dev/null
+++ b/lib/lufa/LUFA/Common/Common.h
@@ -0,0 +1,393 @@
+/*
+             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.
+*/
+
+/** \dir
+ *  \brief Common library header files.
+ *
+ *  This folder contains header files which are common to all parts of the LUFA library. They may be used freely in
+ *  user applications.
+ */
+
+/** \file
+ *  \brief Common library convenience headers, macros and functions.
+ *
+ *  \copydetails Group_Common
+ */
+
+/** \defgroup Group_Common Common Utility Headers - LUFA/Drivers/Common/Common.h
+ *  \brief Common library convenience headers, macros and functions.
+ *
+ *  Common utility headers containing macros, functions, enums and types which are common to all
+ *  aspects of the library.
+ *
+ *  @{
+ */
+
+/** \defgroup Group_GlobalInt Global Interrupt Macros
+ *  \brief Convenience macros for the management of interrupts globally within the device.
+ *
+ *  Macros and functions to create and control global interrupts within the device.
+ */
+
+#ifndef __LUFA_COMMON_H__
+#define __LUFA_COMMON_H__
+
+	/* Macros: */
+		#define __INCLUDE_FROM_COMMON_H
+
+	/* Includes: */
+		#include <stdint.h>
+		#include <stdbool.h>
+		#include <string.h>
+		#include <stddef.h>
+
+		#include "Architectures.h"
+		#include "BoardTypes.h"
+		#include "ArchitectureSpecific.h"
+		#include "CompilerSpecific.h"
+		#include "Attributes.h"
+
+		#if defined(USE_LUFA_CONFIG_HEADER)
+			#include "LUFAConfig.h"
+		#endif
+
+	/* Enable C linkage for C++ Compilers: */
+		#if defined(__cplusplus)
+			extern "C" {
+		#endif
+
+	/* Architecture specific utility includes: */
+		#if defined(__DOXYGEN__)
+			/** Type define for an unsigned integer the same width as the selected architecture's machine register.
+			 *  This is distinct from the non-specific standard int data type, whose width is machine dependant but
+			 *  which may not reflect the actual machine register width on some targets (e.g. AVR8).
+			 */
+			typedef MACHINE_REG_t uint_reg_t;
+		#elif (ARCH == ARCH_AVR8)
+			#include <avr/io.h>
+			#include <avr/interrupt.h>
+			#include <avr/pgmspace.h>
+			#include <avr/eeprom.h>
+			#include <avr/boot.h>
+			#include <math.h>
+			#include <util/delay.h>
+
+			typedef uint8_t uint_reg_t;
+
+			#define ARCH_HAS_EEPROM_ADDRESS_SPACE
+			#define ARCH_HAS_FLASH_ADDRESS_SPACE
+			#define ARCH_HAS_MULTI_ADDRESS_SPACE
+			#define ARCH_LITTLE_ENDIAN
+
+			#include "Endianness.h"
+		#elif (ARCH == ARCH_UC3)
+			#include <avr32/io.h>
+			#include <math.h>
+
+			// === TODO: Find abstracted way to handle these ===
+			#define PROGMEM
+			#define pgm_read_byte(x)         *x
+			#define memcmp_P(...)            memcmp(__VA_ARGS__)
+			#define memcpy_P(...)            memcpy(__VA_ARGS__)
+			// =================================================
+
+			typedef uint32_t uint_reg_t;
+
+			#define ARCH_BIG_ENDIAN
+
+			#include "Endianness.h"
+		#elif (ARCH == ARCH_XMEGA)
+			#include <avr/io.h>
+			#include <avr/interrupt.h>
+			#include <avr/pgmspace.h>
+			#include <avr/eeprom.h>
+			#include <math.h>
+			#include <util/delay.h>
+
+			typedef uint8_t uint_reg_t;
+
+			#define ARCH_HAS_EEPROM_ADDRESS_SPACE
+			#define ARCH_HAS_FLASH_ADDRESS_SPACE
+			#define ARCH_HAS_MULTI_ADDRESS_SPACE
+			#define ARCH_LITTLE_ENDIAN
+
+			#include "Endianness.h"
+		#else
+			#error Unknown device architecture specified.
+		#endif
+
+	/* Public Interface - May be used in end-application: */
+		/* Macros: */
+			#if !defined(__DOXYGEN__)
+				// Obsolete, retained for compatibility with user code
+				#define MACROS                  do
+				#define MACROE                  while (0)
+			#endif
+
+			/** Convenience macro to determine the larger of two values.
+			 *
+			 *  \attention This macro should only be used with operands that do not have side effects from being evaluated
+			 *             multiple times.
+			 *
+			 *  \param[in] x  First value to compare
+			 *  \param[in] y  First value to compare
+			 *
+			 *  \return The larger of the two input parameters
+			 */
+			#if !defined(MAX) || defined(__DOXYGEN__)
+				#define MAX(x, y)               (((x) > (y)) ? (x) : (y))
+			#endif
+
+			/** Convenience macro to determine the smaller of two values.
+			 *
+			 *  \attention This macro should only be used with operands that do not have side effects from being evaluated
+			 *             multiple times.
+			 *
+			 *  \param[in] x  First value to compare.
+			 *  \param[in] y  First value to compare.
+			 *
+			 *  \return The smaller of the two input parameters
+			 */
+			#if !defined(MIN) || defined(__DOXYGEN__)
+				#define MIN(x, y)               (((x) < (y)) ? (x) : (y))
+			#endif
+
+			#if !defined(STRINGIFY) || defined(__DOXYGEN__)
+				/** Converts the given input into a string, via the C Preprocessor. This macro puts literal quotation
+				 *  marks around the input, converting the source into a string literal.
+				 *
+				 *  \param[in] x  Input to convert into a string literal.
+				 *
+				 *  \return String version of the input.
+				 */
+				#define STRINGIFY(x)            #x
+
+				/** Converts the given input into a string after macro expansion, via the C Preprocessor. This macro puts
+				 *  literal quotation marks around the expanded input, converting the source into a string literal.
+				 *
+				 *  \param[in] x  Input to expand and convert into a string literal.
+				 *
+				 *  \return String version of the expanded input.
+				 */
+				#define STRINGIFY_EXPANDED(x)   STRINGIFY(x)
+			#endif
+
+			#if !defined(CONCAT) || defined(__DOXYGEN__)
+				/** Concatenates the given input into a single token, via the C Preprocessor.
+				 *
+				 *  \param[in] x  First item to concatenate.
+				 *  \param[in] y  Second item to concatenate.
+				 *
+				 *  \return Concatenated version of the input.
+				 */
+				#define CONCAT(x, y)            x ## y
+
+				/** CConcatenates the given input into a single token after macro expansion, via the C Preprocessor.
+				 *
+				 *  \param[in] x  First item to concatenate.
+				 *  \param[in] y  Second item to concatenate.
+				 *
+				 *  \return Concatenated version of the expanded input.
+				 */
+				#define CONCAT_EXPANDED(x, y)   CONCAT(x, y)
+			#endif
+
+			#if !defined(ISR) || defined(__DOXYGEN__)
+				/** Macro for the definition of interrupt service routines, so that the compiler can insert the required
+				 *  prologue and epilogue code to properly manage the interrupt routine without affecting the main thread's
+				 *  state with unintentional side-effects.
+				 *
+				 *  Interrupt handlers written using this macro may still need to be registered with the microcontroller's
+				 *  Interrupt Controller (if present) before they will properly handle incoming interrupt events.
+				 *
+				 *  \note This macro is only supplied on some architectures, where the standard library does not include a valid
+				 *        definition. If an existing definition exists, the alternative definition here will be ignored.
+				 *
+				 *  \ingroup Group_GlobalInt
+				 *
+				 *  \param[in] Name  Unique name of the interrupt service routine.
+				 */
+				#define ISR(Name, ...)          void Name (void) __attribute__((__interrupt__)) __VA_ARGS__; void Name (void)
+			#endif
+
+		/* Inline Functions: */
+			/** Function to reverse the individual bits in a byte - i.e. bit 7 is moved to bit 0, bit 6 to bit 1,
+			 *  etc.
+			 *
+			 *  \param[in] Byte  Byte of data whose bits are to be reversed.
+			 *
+			 *  \return Input data with the individual bits reversed (mirrored).
+			 */
+			static inline uint8_t BitReverse(uint8_t Byte) ATTR_WARN_UNUSED_RESULT ATTR_CONST;
+			static inline uint8_t BitReverse(uint8_t Byte)
+			{
+				Byte = (((Byte & 0xF0) >> 4) | ((Byte & 0x0F) << 4));
+				Byte = (((Byte & 0xCC) >> 2) | ((Byte & 0x33) << 2));
+				Byte = (((Byte & 0xAA) >> 1) | ((Byte & 0x55) << 1));
+
+				return Byte;
+			}
+
+			/** Function to perform a blocking delay for a specified number of milliseconds. The actual delay will be
+			 *  at a minimum the specified number of milliseconds, however due to loop overhead and internal calculations
+			 *  may be slightly higher.
+			 *
+			 *  \param[in] Milliseconds  Number of milliseconds to delay
+			 */
+			static inline void Delay_MS(uint16_t Milliseconds) ATTR_ALWAYS_INLINE;
+			static inline void Delay_MS(uint16_t Milliseconds)
+			{
+				#if (ARCH == ARCH_AVR8)
+				if (GCC_IS_COMPILE_CONST(Milliseconds))
+				{
+					_delay_ms(Milliseconds);
+				}
+				else
+				{
+					while (Milliseconds--)
+					  _delay_ms(1);
+				}
+				#elif (ARCH == ARCH_UC3)
+				while (Milliseconds--)
+				{
+					__builtin_mtsr(AVR32_COUNT, 0);
+					while ((uint32_t)__builtin_mfsr(AVR32_COUNT) < (F_CPU / 1000));
+				}
+				#elif (ARCH == ARCH_XMEGA)
+				if (GCC_IS_COMPILE_CONST(Milliseconds))
+				{
+					_delay_ms(Milliseconds);
+				}
+				else
+				{
+					while (Milliseconds--)
+					  _delay_ms(1);
+				}
+				#endif
+			}
+
+			/** Retrieves a mask which contains the current state of the global interrupts for the device. This
+			 *  value can be stored before altering the global interrupt enable state, before restoring the
+			 *  flag(s) back to their previous values after a critical section using \ref SetGlobalInterruptMask().
+			 *
+			 *  \ingroup Group_GlobalInt
+			 *
+			 *  \return  Mask containing the current Global Interrupt Enable Mask bit(s).
+			 */
+			static inline uint_reg_t GetGlobalInterruptMask(void) ATTR_ALWAYS_INLINE ATTR_WARN_UNUSED_RESULT;
+			static inline uint_reg_t GetGlobalInterruptMask(void)
+			{
+				GCC_MEMORY_BARRIER();
+
+				#if (ARCH == ARCH_AVR8)
+				return SREG;
+				#elif (ARCH == ARCH_UC3)
+				return __builtin_mfsr(AVR32_SR);
+				#elif (ARCH == ARCH_XMEGA)
+				return SREG;
+				#endif
+			}
+
+			/** Sets the global interrupt enable state of the microcontroller to the mask passed into the function.
+			 *  This can be combined with \ref GetGlobalInterruptMask() to save and restore the Global Interrupt Enable
+			 *  Mask bit(s) of the device after a critical section has completed.
+			 *
+			 *  \ingroup Group_GlobalInt
+			 *
+			 *  \param[in] GlobalIntState  Global Interrupt Enable Mask value to use
+			 */
+			static inline void SetGlobalInterruptMask(const uint_reg_t GlobalIntState) ATTR_ALWAYS_INLINE;
+			static inline void SetGlobalInterruptMask(const uint_reg_t GlobalIntState)
+			{
+				GCC_MEMORY_BARRIER();
+
+				#if (ARCH == ARCH_AVR8)
+				SREG = GlobalIntState;
+				#elif (ARCH == ARCH_UC3)
+				if (GlobalIntState & AVR32_SR_GM)
+				  __builtin_ssrf(AVR32_SR_GM_OFFSET);
+				else
+				  __builtin_csrf(AVR32_SR_GM_OFFSET);
+				#elif (ARCH == ARCH_XMEGA)
+				SREG = GlobalIntState;
+				#endif
+
+				GCC_MEMORY_BARRIER();
+			}
+
+			/** Enables global interrupt handling for the device, allowing interrupts to be handled.
+			 *
+			 *  \ingroup Group_GlobalInt
+			 */
+			static inline void GlobalInterruptEnable(void) ATTR_ALWAYS_INLINE;
+			static inline void GlobalInterruptEnable(void)
+			{
+				GCC_MEMORY_BARRIER();
+
+				#if (ARCH == ARCH_AVR8)
+				sei();
+				#elif (ARCH == ARCH_UC3)
+				__builtin_csrf(AVR32_SR_GM_OFFSET);
+				#elif (ARCH == ARCH_XMEGA)
+				sei();
+				#endif
+
+				GCC_MEMORY_BARRIER();
+			}
+
+			/** Disabled global interrupt handling for the device, preventing interrupts from being handled.
+			 *
+			 *  \ingroup Group_GlobalInt
+			 */
+			static inline void GlobalInterruptDisable(void) ATTR_ALWAYS_INLINE;
+			static inline void GlobalInterruptDisable(void)
+			{
+				GCC_MEMORY_BARRIER();
+
+				#if (ARCH == ARCH_AVR8)
+				cli();
+				#elif (ARCH == ARCH_UC3)
+				__builtin_ssrf(AVR32_SR_GM_OFFSET);
+				#elif (ARCH == ARCH_XMEGA)
+				cli();
+				#endif
+
+				GCC_MEMORY_BARRIER();
+			}
+
+	/* Disable C linkage for C++ Compilers: */
+		#if defined(__cplusplus)
+			}
+		#endif
+
+#endif
+
+/** @} */
+
diff --git a/lib/lufa/LUFA/Common/CompilerSpecific.h b/lib/lufa/LUFA/Common/CompilerSpecific.h
new file mode 100644
index 0000000000..41e5305b1d
--- /dev/null
+++ b/lib/lufa/LUFA/Common/CompilerSpecific.h
@@ -0,0 +1,97 @@
+/*
+             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 Compiler specific definitions for code optimization and correctness.
+ *
+ *  \copydetails Group_CompilerSpecific
+ *
+ *  \note Do not include this file directly, rather include the Common.h header file instead to gain this file's
+ *        functionality.
+ */
+
+/** \ingroup Group_Common
+ *  \defgroup Group_CompilerSpecific Compiler Specific Definitions
+ *  \brief Compiler specific definitions for code optimization and correctness.
+ *
+ *  Compiler specific definitions to expose certain compiler features which may increase the level of code optimization
+ *  for a specific compiler, or correct certain issues that may be present such as memory barriers for use in conjunction
+ *  with atomic variable access.
+ *
+ *  Where possible, on alternative compilers, these macros will either have no effect, or default to returning a sane value
+ *  so that they can be used in existing code without the need for extra compiler checks in the user application code.
+ *
+ *  @{
+ */
+
+#ifndef __LUFA_COMPILERSPEC_H__
+#define __LUFA_COMPILERSPEC_H__
+
+	/* Preprocessor Checks: */
+		#if !defined(__INCLUDE_FROM_COMMON_H)
+			#error Do not include this file directly. Include LUFA/Common/Common.h instead to gain this functionality.
+		#endif
+
+	/* Public Interface - May be used in end-application: */
+		/* Macros: */
+			#if defined(__GNUC__) || defined(__DOXYGEN__)
+				/** Forces GCC to use pointer indirection (via the device's pointer register pairs) when accessing the given
+				 *  struct pointer. In some cases GCC will emit non-optimal assembly code when accessing a structure through
+				 *  a pointer, resulting in a larger binary. When this macro is used on a (non \c const) structure pointer before
+				 *  use, it will force GCC to use pointer indirection on the elements rather than direct store and load
+				 *  instructions.
+				 *
+				 *  \param[in, out] StructPtr  Pointer to a structure which is to be forced into indirect access mode.
+				 */
+				#define GCC_FORCE_POINTER_ACCESS(StructPtr)   __asm__ __volatile__("" : "=b" (StructPtr) : "0" (StructPtr))
+
+				/** Forces GCC to create a memory barrier, ensuring that memory accesses are not reordered past the barrier point.
+				 *  This can be used before ordering-critical operations, to ensure that the compiler does not re-order the resulting
+				 *  assembly output in an unexpected manner on sections of code that are ordering-specific.
+				 */
+				#define GCC_MEMORY_BARRIER()                  __asm__ __volatile__("" ::: "memory");
+
+				/** Determines if the specified value can be determined at compile-time to be a constant value when compiling under GCC.
+				 *
+				 *  \param[in] x  Value to check compile-time constantness of.
+				 *
+				 *  \return Boolean \c true if the given value is known to be a compile time constant, \c false otherwise.
+				 */
+				#define GCC_IS_COMPILE_CONST(x)               __builtin_constant_p(x)
+			#else
+				#define GCC_FORCE_POINTER_ACCESS(StructPtr)
+				#define GCC_MEMORY_BARRIER()
+				#define GCC_IS_COMPILE_CONST(x)               0
+			#endif
+
+#endif
+
+/** @} */
+
diff --git a/lib/lufa/LUFA/Common/Endianness.h b/lib/lufa/LUFA/Common/Endianness.h
new file mode 100644
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+/*
+             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 Endianness and Byte Ordering macros and functions.
+ *
+ *  \copydetails Group_Endianness
+ */
+
+/** \ingroup Group_Endianness
+ *  \defgroup Group_ByteSwapping Byte Reordering
+ *  \brief Macros and functions for forced byte reordering.
+ */
+
+/** \ingroup Group_Endianness
+ *  \defgroup Group_EndianConversion Endianness Conversion
+ *  \brief Macros and functions for automatic endianness conversion.
+ */
+
+/** \ingroup Group_Common
+ *  \defgroup Group_Endianness Endianness and Byte Ordering
+ *  \brief Convenience macros and functions relating to byte (re-)ordering
+ *
+ *  Common library convenience macros and functions relating to byte (re-)ordering.
+ *
+ *  @{
+ */
+
+#ifndef __LUFA_ENDIANNESS_H__
+#define __LUFA_ENDIANNESS_H__
+
+	/* Enable C linkage for C++ Compilers: */
+		#if defined(__cplusplus)
+			extern "C" {
+		#endif
+
+	/* Preprocessor Checks: */
+		#if !defined(__INCLUDE_FROM_COMMON_H)
+			#error Do not include this file directly. Include LUFA/Common/Common.h instead to gain this functionality.
+		#endif
+
+		#if !(defined(ARCH_BIG_ENDIAN) || defined(ARCH_LITTLE_ENDIAN))
+			#error ARCH_BIG_ENDIAN or ARCH_LITTLE_ENDIAN not set for the specified architecture.
+		#endif
+
+	/* Public Interface - May be used in end-application: */
+		/* Macros: */
+			/** Swaps the byte ordering of a 16-bit value at compile-time. Do not use this macro for swapping byte orderings
+			 *  of dynamic values computed at runtime, use \ref SwapEndian_16() instead. The result of this macro can be used
+			 *  inside struct or other variable initializers outside of a function, something that is not possible with the
+			 *  inline function variant.
+			 *
+			 *  \hideinitializer
+			 *
+			 *  \ingroup Group_ByteSwapping
+			 *
+			 *  \param[in] x  16-bit value whose byte ordering is to be swapped.
+			 *
+			 *  \return Input value with the byte ordering reversed.
+			 */
+			#define SWAPENDIAN_16(x)            (uint16_t)((((x) & 0xFF00) >> 8) | (((x) & 0x00FF) << 8))
+
+			/** Swaps the byte ordering of a 32-bit value at compile-time. Do not use this macro for swapping byte orderings
+			 *  of dynamic values computed at runtime- use \ref SwapEndian_32() instead. The result of this macro can be used
+			 *  inside struct or other variable initializers outside of a function, something that is not possible with the
+			 *  inline function variant.
+			 *
+			 *  \hideinitializer
+			 *
+			 *  \ingroup Group_ByteSwapping
+			 *
+			 *  \param[in] x  32-bit value whose byte ordering is to be swapped.
+			 *
+			 *  \return Input value with the byte ordering reversed.
+			 */
+			#define SWAPENDIAN_32(x)            (uint32_t)((((x) & 0xFF000000UL) >> 24UL) | (((x) & 0x00FF0000UL) >> 8UL) | \
+			                                               (((x) & 0x0000FF00UL) << 8UL)  | (((x) & 0x000000FFUL) << 24UL))
+
+			#if defined(ARCH_BIG_ENDIAN) && !defined(le16_to_cpu)
+				#define le16_to_cpu(x)           SwapEndian_16(x)
+				#define le32_to_cpu(x)           SwapEndian_32(x)
+				#define be16_to_cpu(x)           (x)
+				#define be32_to_cpu(x)           (x)
+				#define cpu_to_le16(x)           SwapEndian_16(x)
+				#define cpu_to_le32(x)           SwapEndian_32(x)
+				#define cpu_to_be16(x)           (x)
+				#define cpu_to_be32(x)           (x)
+				#define LE16_TO_CPU(x)           SWAPENDIAN_16(x)
+				#define LE32_TO_CPU(x)           SWAPENDIAN_32(x)
+				#define BE16_TO_CPU(x)           (x)
+				#define BE32_TO_CPU(x)           (x)
+				#define CPU_TO_LE16(x)           SWAPENDIAN_16(x)
+				#define CPU_TO_LE32(x)           SWAPENDIAN_32(x)
+				#define CPU_TO_BE16(x)           (x)
+				#define CPU_TO_BE32(x)           (x)
+			#elif !defined(le16_to_cpu)
+				/** \name Run-time endianness conversion */
+				//@{
+
+				/** Performs a conversion between a Little Endian encoded 16-bit piece of data and the
+				 *  Endianness of the currently selected CPU architecture.
+				 *
+				 *  On little endian architectures, this macro does nothing.
+				 *
+				 *  \note This macro is designed for run-time conversion of data - for compile-time endianness
+				 *        conversion, use \ref LE16_TO_CPU instead.
+				 *
+				 *  \ingroup Group_EndianConversion
+				 *
+				 *  \param[in] x  Data to perform the endianness conversion on.
+				 *
+				 *  \return Endian corrected version of the input value.
+				 */
+				#define le16_to_cpu(x)           (x)
+
+				/** Performs a conversion between a Little Endian encoded 32-bit piece of data and the
+				 *  Endianness of the currently selected CPU architecture.
+				 *
+				 *  On little endian architectures, this macro does nothing.
+				 *
+				 *  \note This macro is designed for run-time conversion of data - for compile-time endianness
+				 *        conversion, use \ref LE32_TO_CPU instead.
+				 *
+				 *  \ingroup Group_EndianConversion
+				 *
+				 *  \param[in] x  Data to perform the endianness conversion on.
+				 *
+				 *  \return Endian corrected version of the input value.
+				 */
+				#define le32_to_cpu(x)           (x)
+
+				/** Performs a conversion between a Big Endian encoded 16-bit piece of data and the
+				 *  Endianness of the currently selected CPU architecture.
+				 *
+				 *  On big endian architectures, this macro does nothing.
+				 *
+				 *  \note This macro is designed for run-time conversion of data - for compile-time endianness
+				 *        conversion, use \ref BE16_TO_CPU instead.
+				 *
+				 *  \ingroup Group_EndianConversion
+				 *
+				 *  \param[in] x  Data to perform the endianness conversion on.
+				 *
+				 *  \return Endian corrected version of the input value.
+				 */
+				#define be16_to_cpu(x)           SwapEndian_16(x)
+
+				/** Performs a conversion between a Big Endian encoded 32-bit piece of data and the
+				 *  Endianness of the currently selected CPU architecture.
+				 *
+				 *  On big endian architectures, this macro does nothing.
+				 *
+				 *  \note This macro is designed for run-time conversion of data - for compile-time endianness
+				 *        conversion, use \ref BE32_TO_CPU instead.
+				 *
+				 *  \ingroup Group_EndianConversion
+				 *
+				 *  \param[in] x  Data to perform the endianness conversion on.
+				 *
+				 *  \return Endian corrected version of the input value.
+				 */
+				#define be32_to_cpu(x)           SwapEndian_32(x)
+
+				/** Performs a conversion on a natively encoded 16-bit piece of data to ensure that it
+				 *  is in Little Endian format regardless of the currently selected CPU architecture.
+				 *
+				 *  On little endian architectures, this macro does nothing.
+				 *
+				 *  \note This macro is designed for run-time conversion of data - for compile-time endianness
+				 *        conversion, use \ref CPU_TO_LE16 instead.
+				 *
+				 *  \ingroup Group_EndianConversion
+				 *
+				 *  \param[in] x  Data to perform the endianness conversion on.
+				 *
+				 *  \return Endian corrected version of the input value.
+				 */
+				#define cpu_to_le16(x)           (x)
+
+				/** Performs a conversion on a natively encoded 32-bit piece of data to ensure that it
+				 *  is in Little Endian format regardless of the currently selected CPU architecture.
+				 *
+				 *  On little endian architectures, this macro does nothing.
+				 *
+				 *  \note This macro is designed for run-time conversion of data - for compile-time endianness
+				 *        conversion, use \ref CPU_TO_LE32 instead.
+				 *
+				 *  \ingroup Group_EndianConversion
+				 *
+				 *  \param[in] x  Data to perform the endianness conversion on.
+				 *
+				 *  \return Endian corrected version of the input value.
+				 */
+				#define cpu_to_le32(x)           (x)
+
+				/** Performs a conversion on a natively encoded 16-bit piece of data to ensure that it
+				 *  is in Big Endian format regardless of the currently selected CPU architecture.
+				 *
+				 *  On big endian architectures, this macro does nothing.
+				 *
+				 *  \note This macro is designed for run-time conversion of data - for compile-time endianness
+				 *        conversion, use \ref CPU_TO_BE16 instead.
+				 *
+				 *  \ingroup Group_EndianConversion
+				 *
+				 *  \param[in] x  Data to perform the endianness conversion on.
+				 *
+				 *  \return Endian corrected version of the input value.
+				 */
+				#define cpu_to_be16(x)           SwapEndian_16(x)
+
+				/** Performs a conversion on a natively encoded 32-bit piece of data to ensure that it
+				 *  is in Big Endian format regardless of the currently selected CPU architecture.
+				 *
+				 *  On big endian architectures, this macro does nothing.
+				 *
+				 *  \note This macro is designed for run-time conversion of data - for compile-time endianness
+				 *        conversion, use \ref CPU_TO_BE32 instead.
+				 *
+				 *  \ingroup Group_EndianConversion
+				 *
+				 *  \param[in] x  Data to perform the endianness conversion on.
+				 *
+				 *  \return Endian corrected version of the input value.
+				 */
+				#define cpu_to_be32(x)           SwapEndian_32(x)
+
+				//@}
+
+				/** \name Compile-time endianness conversion */
+				//@{
+
+				/** Performs a conversion between a Little Endian encoded 16-bit piece of data and the
+				 *  Endianness of the currently selected CPU architecture.
+				 *
+				 *  On little endian architectures, this macro does nothing.
+				 *
+				 *  \note This macro is designed for compile-time conversion of data - for run time endianness
+				 *        conversion, use \ref le16_to_cpu instead.
+				 *
+				 *  \ingroup Group_EndianConversion
+				 *
+				 *  \param[in] x  Data to perform the endianness conversion on.
+				 *
+				 *  \return Endian corrected version of the input value.
+				 */
+				#define LE16_TO_CPU(x)           (x)
+
+				/** Performs a conversion between a Little Endian encoded 32-bit piece of data and the
+				 *  Endianness of the currently selected CPU architecture.
+				 *
+				 *  On little endian architectures, this macro does nothing.
+				 *
+				 *  \note This macro is designed for compile-time conversion of data - for run time endianness
+				 *        conversion, use \ref le32_to_cpu instead.
+				 *
+				 *  \ingroup Group_EndianConversion
+				 *
+				 *  \param[in] x  Data to perform the endianness conversion on.
+				 *
+				 *  \return Endian corrected version of the input value.
+				 */
+				#define LE32_TO_CPU(x)           (x)
+
+				/** Performs a conversion between a Big Endian encoded 16-bit piece of data and the
+				 *  Endianness of the currently selected CPU architecture.
+				 *
+				 *  On big endian architectures, this macro does nothing.
+				 *
+				 *  \note This macro is designed for compile-time conversion of data - for run-time endianness
+				 *        conversion, use \ref be16_to_cpu instead.
+				 *
+				 *  \ingroup Group_EndianConversion
+				 *
+				 *  \param[in] x  Data to perform the endianness conversion on.
+				 *
+				 *  \return Endian corrected version of the input value.
+				 */
+				#define BE16_TO_CPU(x)           SWAPENDIAN_16(x)
+
+				/** Performs a conversion between a Big Endian encoded 32-bit piece of data and the
+				 *  Endianness of the currently selected CPU architecture.
+				 *
+				 *  On big endian architectures, this macro does nothing.
+				 *
+				 *  \note This macro is designed for compile-time conversion of data - for run-time endianness
+				 *        conversion, use \ref be32_to_cpu instead.
+				 *
+				 *  \ingroup Group_EndianConversion
+				 *
+				 *  \param[in] x  Data to perform the endianness conversion on.
+				 *
+				 *  \return Endian corrected version of the input value.
+				 */
+				#define BE32_TO_CPU(x)           SWAPENDIAN_32(x)
+
+				/** Performs a conversion on a natively encoded 16-bit piece of data to ensure that it
+				 *  is in Little Endian format regardless of the currently selected CPU architecture.
+				 *
+				 *  On little endian architectures, this macro does nothing.
+				 *
+				 *  \note This macro is designed for compile-time conversion of data - for run-time endianness
+				 *        conversion, use \ref cpu_to_le16 instead.
+				 *
+				 *  \ingroup Group_EndianConversion
+				 *
+				 *  \param[in] x  Data to perform the endianness conversion on.
+				 *
+				 *  \return Endian corrected version of the input value.
+				 */
+				#define CPU_TO_LE16(x)           (x)
+
+				/** Performs a conversion on a natively encoded 32-bit piece of data to ensure that it
+				 *  is in Little Endian format regardless of the currently selected CPU architecture.
+				 *
+				 *  On little endian architectures, this macro does nothing.
+				 *
+				 *  \note This macro is designed for compile-time conversion of data - for run-time endianness
+				 *        conversion, use \ref cpu_to_le32 instead.
+				 *
+				 *  \ingroup Group_EndianConversion
+				 *
+				 *  \param[in] x  Data to perform the endianness conversion on.
+				 *
+				 *  \return Endian corrected version of the input value.
+				 */
+				#define CPU_TO_LE32(x)           (x)
+
+				/** Performs a conversion on a natively encoded 16-bit piece of data to ensure that it
+				 *  is in Big Endian format regardless of the currently selected CPU architecture.
+				 *
+				 *  On big endian architectures, this macro does nothing.
+				 *
+				 *  \note This macro is designed for compile-time conversion of data - for run-time endianness
+				 *        conversion, use \ref cpu_to_be16 instead.
+				 *
+				 *  \ingroup Group_EndianConversion
+				 *
+				 *  \param[in] x  Data to perform the endianness conversion on.
+				 *
+				 *  \return Endian corrected version of the input value.
+				 */
+				#define CPU_TO_BE16(x)           SWAPENDIAN_16(x)
+
+				/** Performs a conversion on a natively encoded 32-bit piece of data to ensure that it
+				 *  is in Big Endian format regardless of the currently selected CPU architecture.
+				 *
+				 *  On big endian architectures, this macro does nothing.
+				 *
+				 *  \note This macro is designed for compile-time conversion of data - for run-time endianness
+				 *        conversion, use \ref cpu_to_be32 instead.
+				 *
+				 *  \ingroup Group_EndianConversion
+				 *
+				 *  \param[in] x  Data to perform the endianness conversion on.
+				 *
+				 *  \return Endian corrected version of the input value.
+				 */
+				#define CPU_TO_BE32(x)           SWAPENDIAN_32(x)
+
+				//! @}
+			#endif
+
+		/* Inline Functions: */
+			/** Function to reverse the byte ordering of the individual bytes in a 16 bit value.
+			 *
+			 *  \ingroup Group_ByteSwapping
+			 *
+			 *  \param[in] Word  Word of data whose bytes are to be swapped.
+			 *
+			 *  \return Input data with the individual bytes reversed.
+			 */
+			static inline uint16_t SwapEndian_16(const uint16_t Word) ATTR_WARN_UNUSED_RESULT ATTR_CONST ATTR_ALWAYS_INLINE;
+			static inline uint16_t SwapEndian_16(const uint16_t Word)
+			{
+				if (GCC_IS_COMPILE_CONST(Word))
+				  return SWAPENDIAN_16(Word);
+
+				uint8_t Temp;
+
+				union
+				{
+					uint16_t Word;
+					uint8_t  Bytes[2];
+				} Data;
+
+				Data.Word = Word;
+
+				Temp = Data.Bytes[0];
+				Data.Bytes[0] = Data.Bytes[1];
+				Data.Bytes[1] = Temp;
+
+				return Data.Word;
+			}
+
+			/** Function to reverse the byte ordering of the individual bytes in a 32 bit value.
+			 *
+			 *  \ingroup Group_ByteSwapping
+			 *
+			 *  \param[in] DWord  Double word of data whose bytes are to be swapped.
+			 *
+			 *  \return Input data with the individual bytes reversed.
+			 */
+			static inline uint32_t SwapEndian_32(const uint32_t DWord) ATTR_WARN_UNUSED_RESULT ATTR_CONST ATTR_ALWAYS_INLINE;
+			static inline uint32_t SwapEndian_32(const uint32_t DWord)
+			{
+				if (GCC_IS_COMPILE_CONST(DWord))
+				  return SWAPENDIAN_32(DWord);
+
+				uint8_t Temp;
+
+				union
+				{
+					uint32_t DWord;
+					uint8_t  Bytes[4];
+				} Data;
+
+				Data.DWord = DWord;
+
+				Temp = Data.Bytes[0];
+				Data.Bytes[0] = Data.Bytes[3];
+				Data.Bytes[3] = Temp;
+
+				Temp = Data.Bytes[1];
+				Data.Bytes[1] = Data.Bytes[2];
+				Data.Bytes[2] = Temp;
+
+				return Data.DWord;
+			}
+
+			/** Function to reverse the byte ordering of the individual bytes in a n byte value.
+			 *
+			 *  \ingroup Group_ByteSwapping
+			 *
+			 *  \param[in,out] Data    Pointer to a number containing an even number of bytes to be reversed.
+			 *  \param[in]     Length  Length of the data in bytes.
+			 *
+			 *  \return Input data with the individual bytes reversed.
+			 */
+			static inline void SwapEndian_n(void* const Data,
+			                                uint8_t Length) ATTR_NON_NULL_PTR_ARG(1);
+			static inline void SwapEndian_n(void* const Data,
+			                                uint8_t Length)
+			{
+				uint8_t* CurrDataPos = (uint8_t*)Data;
+
+				while (Length > 1)
+				{
+					uint8_t Temp = *CurrDataPos;
+					*CurrDataPos = *(CurrDataPos + Length - 1);
+					*(CurrDataPos + Length - 1) = Temp;
+
+					CurrDataPos++;
+					Length -= 2;
+				}
+			}
+
+	/* Disable C linkage for C++ Compilers: */
+		#if defined(__cplusplus)
+			}
+		#endif
+
+#endif
+
+/** @} */
+