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

5 files changed, 703 insertions, 0 deletions

diff --git a/lib/lufa/LUFA/Platform/UC3/ClockManagement.h b/lib/lufa/LUFA/Platform/UC3/ClockManagement.h
new file mode 100644
index 0000000000..5f286d51d5
--- /dev/null
+++ b/lib/lufa/LUFA/Platform/UC3/ClockManagement.h
@@ -0,0 +1,338 @@
+/*
+             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 Module Clock Driver for the AVR32 UC3 microcontrollers.
+ *
+ *  Clock management driver for the AVR32 UC3 microcontrollers. This driver allows for the configuration
+ *  of the various clocks within the device to clock the various peripherals.
+ */
+
+/** \ingroup Group_PlatformDrivers_UC3
+ *  \defgroup Group_PlatformDrivers_UC3Clocks Clock Management Driver - LUFA/Platform/UC3/ClockManagement.h
+ *  \brief Module Clock Driver for the AVR32 UC3 microcontrollers.
+ *
+ *  \section Sec_PlatformDrivers_UC3Clocks_Dependencies Module Source Dependencies
+ *  The following files must be built with any user project that uses this module:
+ *    - None
+ *
+ *  \section Sec_PlatformDrivers_UC3Clocks_ModDescription Module Description
+ *  Clock management driver for the AVR32 UC3 microcontrollers. This driver allows for the configuration
+ *  of the various clocks within the device to clock the various peripherals.
+ *
+ *  Usage Example:
+ *  \code
+ *		#include <LUFA/Platform/UC3/ClockManagement.h>
+ *
+ *		void main(void)
+ *		{
+ *			// Start the master external oscillator which will be used as the main clock reference
+ *			UC3CLK_StartExternalOscillator(0, EXOSC_MODE_8MHZ_OR_MORE, EXOSC_START_0CLK);
+ *
+ *			// Start the PLL for the CPU clock, switch CPU to it
+ *			UC3CLK_StartPLL(0, CLOCK_SRC_OSC0, 12000000, F_CPU);
+ *			UC3CLK_SetCPUClockSource(CLOCK_SRC_PLL0, F_CPU);
+ *
+ *			// Start the PLL for the USB Generic Clock module
+ *			UC3CLK_StartPLL(1, CLOCK_SRC_OSC0, 12000000, 48000000);
+ *		}
+ *  \endcode
+ *
+ *  @{
+ */
+
+#ifndef _UC3_CLOCK_MANAGEMENT_H_
+#define _UC3_CLOCK_MANAGEMENT_H_
+
+	/* Includes: */
+		#include "../../Common/Common.h"
+
+	/* Enable C linkage for C++ Compilers: */
+		#if defined(__cplusplus)
+			extern "C" {
+		#endif
+
+	/* Public Interface - May be used in end-application: */
+		/* Macros: */
+			/** Enum for the possible external oscillator types. */
+			enum UC3_Extern_OSC_ClockTypes_t
+			{
+				EXOSC_MODE_CLOCK         = AVR32_PM_OSCCTRL0_MODE_EXT_CLOCK,  /**< External clock (non-crystal) mode. */
+				EXOSC_MODE_900KHZ_MAX    = AVR32_PM_OSCCTRL0_MODE_CRYSTAL_G0, /**< External crystal oscillator equal to or slower than 900KHz. */
+				EXOSC_MODE_3MHZ_MAX      = AVR32_PM_OSCCTRL0_MODE_CRYSTAL_G1, /**< External crystal oscillator equal to or slower than 3MHz. */
+				EXOSC_MODE_8MHZ_MAX      = AVR32_PM_OSCCTRL0_MODE_CRYSTAL_G2, /**< External crystal oscillator equal to or slower than 8MHz. */
+				EXOSC_MODE_8MHZ_OR_MORE  = AVR32_PM_OSCCTRL0_MODE_CRYSTAL_G3, /**< External crystal oscillator equal to or faster than 8MHz. */
+			};
+
+			/** Enum for the possible external oscillator startup times. */
+			enum UC3_Extern_OSC_ClockStartup_t
+			{
+				EXOSC_START_0CLK         = AVR32_PM_OSCCTRL0_STARTUP_0_RCOSC,     /**< Immediate startup, no delay. */
+				EXOSC_START_64CLK        = AVR32_PM_OSCCTRL0_STARTUP_64_RCOSC,    /**< Wait 64 clock cycles before startup for stability. */
+				EXOSC_START_128CLK       = AVR32_PM_OSCCTRL0_STARTUP_128_RCOSC,   /**< Wait 128 clock cycles before startup for stability. */
+				EXOSC_START_2048CLK      = AVR32_PM_OSCCTRL0_STARTUP_2048_RCOSC,  /**< Wait 2048 clock cycles before startup for stability. */
+				EXOSC_START_4096CLK      = AVR32_PM_OSCCTRL0_STARTUP_4096_RCOSC,  /**< Wait 4096 clock cycles before startup for stability. */
+				EXOSC_START_8192CLK      = AVR32_PM_OSCCTRL0_STARTUP_8192_RCOSC,  /**< Wait 8192 clock cycles before startup for stability. */
+				EXOSC_START_16384CLK     = AVR32_PM_OSCCTRL0_STARTUP_16384_RCOSC, /**< Wait 16384 clock cycles before startup for stability. */
+			};
+
+			/** Enum for the possible module clock sources. */
+			enum UC3_System_ClockSource_t
+			{
+				CLOCK_SRC_SLOW_CLK       = 0, /**< Clock sourced from the internal slow clock. */
+				CLOCK_SRC_OSC0           = 1, /**< Clock sourced from the Oscillator 0 clock. */
+				CLOCK_SRC_OSC1           = 2, /**< Clock sourced from the Oscillator 1 clock. */
+				CLOCK_SRC_PLL0           = 3, /**< Clock sourced from the PLL 0 clock. */
+				CLOCK_SRC_PLL1           = 4, /**< Clock sourced from the PLL 1 clock. */
+			};
+
+		/* Inline Functions: */
+			/** Starts the given external oscillator of the UC3 microcontroller, with the given options. This routine blocks until
+			 *  the oscillator is ready for use.
+			 *
+			 *  \param[in] Channel  Index of the external oscillator to start.
+			 *  \param[in] Type     Type of clock attached to the given oscillator channel, a value from \ref UC3_Extern_OSC_ClockTypes_t.
+			 *  \param[in] Startup  Startup time of the external oscillator, a value from \ref UC3_Extern_OSC_ClockStartup_t.
+			 *
+			 *  \return Boolean \c true if the external oscillator was successfully started, \c false if invalid parameters specified.
+			 */
+			static inline bool UC3CLK_StartExternalOscillator(const uint8_t Channel,
+			                                                  const uint8_t Type,
+			                                                  const uint8_t Startup) ATTR_ALWAYS_INLINE;
+			static inline bool UC3CLK_StartExternalOscillator(const uint8_t Channel,
+			                                                  const uint8_t Type,
+			                                                  const uint8_t Startup)
+			{
+				switch (Channel)
+				{
+					case 0:
+						AVR32_PM.OSCCTRL0.startup = Startup;
+						AVR32_PM.OSCCTRL0.mode    = Type;
+						break;
+					case 1:
+						AVR32_PM.OSCCTRL1.startup = Startup;
+						AVR32_PM.OSCCTRL1.mode    = Type;
+						break;
+					default:
+						return false;
+				}
+
+				AVR32_PM.mcctrl |= (1 << (AVR32_PM_MCCTRL_OSC0EN_OFFSET + Channel));
+
+				while (!(AVR32_PM.poscsr & (1 << (AVR32_PM_POSCSR_OSC0RDY_OFFSET + Channel))));
+				return true;
+			}
+
+			/** Stops the given external oscillator of the UC3 microcontroller.
+			 *
+			 *  \param[in] Channel  Index of the external oscillator to stop.
+			 */
+			static inline void UC3CLK_StopExternalOscillator(const uint8_t Channel) ATTR_ALWAYS_INLINE;
+			static inline void UC3CLK_StopExternalOscillator(const uint8_t Channel)
+			{
+				AVR32_PM.mcctrl &= ~(1 << (AVR32_PM_MCCTRL_OSC0EN_OFFSET + Channel));
+			}
+
+			/** Starts the given PLL of the UC3 microcontroller, with the given options. This routine blocks until the PLL is ready for use.
+			 *
+			 *  \attention The output frequency must be equal to or greater than the source frequency.
+			 *
+			 *  \param[in] Channel     Index of the PLL to start.
+			 *  \param[in] Source      Clock source for the PLL, a value from \ref UC3_System_ClockSource_t.
+			 *  \param[in] SourceFreq  Frequency of the PLL's clock source, in Hz.
+			 *  \param[in] Frequency   Target frequency of the PLL's output.
+			 *
+			 *  \return Boolean \c true if the PLL was successfully started, \c false if invalid parameters specified.
+			 */
+			static inline bool UC3CLK_StartPLL(const uint8_t Channel,
+			                                   const uint8_t Source,
+			                                   const uint32_t SourceFreq,
+			                                   const uint32_t Frequency) ATTR_ALWAYS_INLINE;
+			static inline bool UC3CLK_StartPLL(const uint8_t Channel,
+			                                   const uint8_t Source,
+			                                   const uint32_t SourceFreq,
+			                                   const uint32_t Frequency)
+			{
+				if (SourceFreq > Frequency)
+				  return false;
+
+				switch (Source)
+				{
+					case CLOCK_SRC_OSC0:
+						AVR32_PM.PLL[Channel].pllosc = 0;
+						break;
+					case CLOCK_SRC_OSC1:
+						AVR32_PM.PLL[Channel].pllosc = 1;
+						break;
+					default:
+						return false;
+				}
+
+				AVR32_PM.PLL[Channel].pllmul = (Frequency / SourceFreq) ? (((Frequency / SourceFreq) - 1) / 2) : 0;
+				AVR32_PM.PLL[Channel].plldiv = 0;
+				AVR32_PM.PLL[Channel].pllen  = true;
+
+				while (!(AVR32_PM.poscsr & (1 << (AVR32_PM_POSCSR_LOCK0_OFFSET + Channel))));
+				return true;
+			}
+
+			/** Stops the given PLL of the UC3 microcontroller.
+			 *
+			 *  \param[in] Channel  Index of the PLL to stop.
+			 */
+			static inline void UC3CLK_StopPLL(const uint8_t Channel) ATTR_ALWAYS_INLINE;
+			static inline void UC3CLK_StopPLL(const uint8_t Channel)
+			{
+				AVR32_PM.PLL[Channel].pllen = false;
+			}
+
+			/** Starts the given Generic Clock of the UC3 microcontroller, with the given options.
+			 *
+			 *  \param[in] Channel     Index of the Generic Clock to start.
+			 *  \param[in] Source      Clock source for the Generic Clock, a value from \ref UC3_System_ClockSource_t.
+			 *  \param[in] SourceFreq  Frequency of the Generic Clock's clock source, in Hz.
+			 *  \param[in] Frequency   Target frequency of the Generic Clock's output.
+			 *
+			 *  \return Boolean \c true if the Generic Clock was successfully started, \c false if invalid parameters specified.
+			 */
+			static inline bool UC3CLK_StartGenericClock(const uint8_t Channel,
+			                                            const uint8_t Source,
+			                                            const uint32_t SourceFreq,
+			                                            const uint32_t Frequency) ATTR_ALWAYS_INLINE;
+			static inline bool UC3CLK_StartGenericClock(const uint8_t Channel,
+			                                            const uint8_t Source,
+			                                            const uint32_t SourceFreq,
+			                                            const uint32_t Frequency)
+			{
+				if (Channel >= AVR32_PM_GCLK_NUM)
+				  return false;
+
+				if (SourceFreq < Frequency)
+				  return false;
+
+				switch (Source)
+				{
+					case CLOCK_SRC_OSC0:
+						AVR32_PM.GCCTRL[Channel].pllsel = false;
+						AVR32_PM.GCCTRL[Channel].oscsel = 0;
+						break;
+					case CLOCK_SRC_OSC1:
+						AVR32_PM.GCCTRL[Channel].pllsel = false;
+						AVR32_PM.GCCTRL[Channel].oscsel = 1;
+						break;
+					case CLOCK_SRC_PLL0:
+						AVR32_PM.GCCTRL[Channel].pllsel = true;
+						AVR32_PM.GCCTRL[Channel].oscsel = 0;
+						break;
+					case CLOCK_SRC_PLL1:
+						AVR32_PM.GCCTRL[Channel].pllsel = true;
+						AVR32_PM.GCCTRL[Channel].oscsel = 1;
+						break;
+					default:
+						return false;
+				}
+
+				AVR32_PM.GCCTRL[Channel].diven = (SourceFreq > Frequency) ? true : false;
+				AVR32_PM.GCCTRL[Channel].div   = (((SourceFreq / Frequency) - 1) / 2);
+				AVR32_PM.GCCTRL[Channel].cen   = true;
+
+				return true;
+			}
+
+			/** Stops the given generic clock of the UC3 microcontroller.
+			 *
+			 *  \param[in] Channel  Index of the generic clock to stop.
+			 *
+			 *  \return Boolean \c true if the generic clock was successfully stopped, \c false if invalid parameters specified.
+			 */
+			static inline bool UC3CLK_StopGenericClock(const uint8_t Channel) ATTR_ALWAYS_INLINE;
+			static inline bool UC3CLK_StopGenericClock(const uint8_t Channel)
+			{
+				if (Channel >= AVR32_PM_GCLK_NUM)
+				  return false;
+
+				AVR32_PM.GCCTRL[Channel].cen = false;
+
+				return true;
+			}
+
+			/** Sets the clock source for the main microcontroller core. The given clock source should be configured
+			 *  and ready for use before this function is called.
+			 *
+			 *  This function will configure the FLASH controller's wait states automatically to suit the given clock source.
+			 *
+			 *  \param[in] Source      Clock source for the CPU core, a value from \ref UC3_System_ClockSource_t.
+			 *  \param[in] SourceFreq  Frequency of the CPU core's clock source, in Hz.
+			 *
+			 *  \return Boolean \c true if the CPU core clock was successfully altered, \c false if invalid parameters specified.
+			 */
+			static inline bool UC3CLK_SetCPUClockSource(const uint8_t Source,
+			                                            const uint32_t SourceFreq) ATTR_ALWAYS_INLINE;
+			static inline bool UC3CLK_SetCPUClockSource(const uint8_t Source,
+			                                            const uint32_t SourceFreq)
+			{
+				if (SourceFreq > AVR32_PM_CPU_MAX_FREQ)
+				  return false;
+
+				AVR32_FLASHC.FCR.fws = (SourceFreq > AVR32_FLASHC_FWS_0_MAX_FREQ) ? true : false;
+
+				switch (Source)
+				{
+					#if defined(AVR32_PM_MCCTRL_MCSEL_SLOW)
+					case CLOCK_SRC_SLOW_CLK:
+						AVR32_PM.MCCTRL.mcsel = AVR32_PM_MCCTRL_MCSEL_SLOW;
+						break;
+					#endif
+					#if defined(AVR32_PM_MCCTRL_MCSEL_OSC0)
+					case CLOCK_SRC_OSC0:
+						AVR32_PM.MCCTRL.mcsel = AVR32_PM_MCCTRL_MCSEL_OSC0;
+						break;
+					#endif
+					#if defined(AVR32_PM_MCCTRL_MCSEL_PLL0)
+					case CLOCK_SRC_PLL0:
+						AVR32_PM.MCCTRL.mcsel = AVR32_PM_MCCTRL_MCSEL_PLL0;
+						break;
+					#endif
+					default:
+						return false;
+				}
+
+				return true;
+			}
+
+	/* Disable C linkage for C++ Compilers: */
+		#if defined(__cplusplus)
+			}
+		#endif
+
+#endif
+
+/** @} */
+
diff --git a/lib/lufa/LUFA/Platform/UC3/Exception.S b/lib/lufa/LUFA/Platform/UC3/Exception.S
new file mode 100644
index 0000000000..59f16f16f1
--- /dev/null
+++ b/lib/lufa/LUFA/Platform/UC3/Exception.S
@@ -0,0 +1,128 @@
+/*
+             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.
+*/
+
+#if defined(__AVR32__)
+#include <avr32/io.h>
+
+.section .exception_handlers, "ax", @progbits
+
+// ================= EXCEPTION TABLE ================
+.balign  0x200
+.global  EVBA_Table
+EVBA_Table:
+
+.org  0x000
+Exception_Unrecoverable_Exception:
+	rjmp $
+.org  0x004
+Exception_TLB_Multiple_Hit:
+	rjmp $
+.org  0x008
+Exception_Bus_Error_Data_Fetch:
+	rjmp $
+.org  0x00C
+Exception_Bus_Error_Instruction_Fetch:
+	rjmp $
+.org  0x010
+Exception_NMI:
+	rjmp $
+.org  0x014
+Exception_Instruction_Address:
+	rjmp $
+.org  0x018
+Exception_ITLB_Protection:
+	rjmp $
+.org  0x01C
+Exception_OCD_Breakpoint:
+	rjmp $
+.org  0x020
+Exception_Illegal_Opcode:
+	rjmp $
+.org  0x024
+Exception_Unimplemented_Instruction:
+	rjmp $
+.org  0x028
+Exception_Privilege_Violation:
+	rjmp $
+.org  0x02C
+Exception_Floating_Point:
+	rjmp $
+.org  0x030
+Exception_Coprocessor_Absent:
+	rjmp $
+.org  0x034
+Exception_Data_Address_Read:
+	rjmp $
+.org  0x038
+Exception_Data_Address_Write:
+	rjmp $
+.org  0x03C
+Exception_DTLB_Protection_Read:
+	rjmp $
+.org  0x040
+Exception_DTLB_Protection_Write:
+	rjmp $
+.org  0x044
+Exception_DTLB_Modified:
+	rjmp $
+.org  0x050
+Exception_ITLB_Miss:
+	rjmp $
+.org  0x060
+Exception_DTLB_Miss_Read:
+	rjmp $
+.org  0x070
+Exception_DTLB_Miss_Write:
+	rjmp $
+.org  0x100
+Exception_Supervisor_Call:
+    rjmp $
+// ============== END OF EXCEPTION TABLE =============
+
+// ============= GENERAL INTERRUPT HANDLER ===========
+.balign 4
+.irp    Level, 0, 1, 2, 3
+Exception_INT\Level:
+	mov     r12, \Level
+	call    INTC_GetInterruptHandler
+	mov     pc, r12
+.endr
+// ========= END OF GENERAL INTERRUPT HANDLER ========
+
+// ====== GENERAL INTERRUPT HANDLER OFFSET TABLE ======
+.balign 4
+.global Autovector_Table
+Autovector_Table:
+.irp    Level, 0, 1, 2, 3
+	.word ((AVR32_INTC_INT0 + \Level) << AVR32_INTC_IPR_INTLEVEL_OFFSET) | (Exception_INT\Level - EVBA_Table)
+.endr
+// === END OF GENERAL INTERRUPT HANDLER OFFSET TABLE ===
+
+#endif
diff --git a/lib/lufa/LUFA/Platform/UC3/InterruptManagement.c b/lib/lufa/LUFA/Platform/UC3/InterruptManagement.c
new file mode 100644
index 0000000000..b99be24b97
--- /dev/null
+++ b/lib/lufa/LUFA/Platform/UC3/InterruptManagement.c
@@ -0,0 +1,62 @@
+/*
+             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.
+*/
+
+#include "../../Common/Common.h"
+#if (ARCH == ARCH_UC3)
+
+#define  __INCLUDE_FROM_INTMANAGEMENT_C
+#include "InterruptManagement.h"
+
+/** Interrupt vector table, containing the ISR to call for each interrupt group */
+InterruptHandlerPtr_t InterruptHandlers[AVR32_INTC_NUM_INT_GRPS];
+
+/** ISR for unhandled interrupt groups */
+ISR(Unhandled_Interrupt)
+{
+	for (;;);
+}
+
+InterruptHandlerPtr_t INTC_GetInterruptHandler(const uint_reg_t InterruptLevel)
+{
+	return InterruptHandlers[AVR32_INTC.icr[AVR32_INTC_INT3 - InterruptLevel]];
+}
+
+void INTC_Init(void)
+{
+	for (uint8_t InterruptGroup = 0; InterruptGroup < AVR32_INTC_NUM_INT_GRPS; InterruptGroup++)
+	{
+		InterruptHandlers[InterruptGroup] = Unhandled_Interrupt;
+		AVR32_INTC.ipr[InterruptGroup]    = Autovector_Table[AVR32_INTC_INT0];
+	}
+
+	__builtin_mtsr(AVR32_EVBA, (uintptr_t)&EVBA_Table);
+}
+
+#endif
diff --git a/lib/lufa/LUFA/Platform/UC3/InterruptManagement.h b/lib/lufa/LUFA/Platform/UC3/InterruptManagement.h
new file mode 100644
index 0000000000..b051930370
--- /dev/null
+++ b/lib/lufa/LUFA/Platform/UC3/InterruptManagement.h
@@ -0,0 +1,174 @@
+/*
+             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 Interrupt Controller Driver for the AVR32 UC3 microcontrollers.
+ *
+ *  Interrupt controller driver for the AVR32 UC3 microcontrollers, for the configuration of interrupt
+ *  handlers within the device.
+ */
+
+/** \ingroup Group_PlatformDrivers_UC3
+ *  \defgroup Group_PlatformDrivers_UC3Interrupts Interrupt Controller Driver - LUFA/Platform/UC3/InterruptManagement.h
+ *  \brief Interrupt Controller Driver for the AVR32 UC3 microcontrollers.
+ *
+ *  \section Sec_PlatformDrivers_UC3Interrupts_Dependencies Module Source Dependencies
+ *  The following files must be built with any user project that uses this module:
+ *    - LUFA/Platform/UC3/InterruptManagement.c <i>(Makefile source module name: LUFA_SRC_PLATFORM)</i>
+ *    - LUFA/Platform/UC3/Exception.S <i>(Makefile source module name: LUFA_SRC_PLATFORM)</i>
+ *
+ *  \section Sec_PlatformDrivers_UC3Interrupts_ModDescription Module Description
+ *  Interrupt controller driver for the AVR32 UC3 microcontrollers, for the configuration of interrupt
+ *  handlers within the device.
+ *
+ *  Usage Example:
+ *  \code
+ *		#include <LUFA/Platform/UC3/InterruptManagement.h>
+ *
+ *		ISR(USB_Group_IRQ_Handler)
+ *		{
+ *			// USB group handler code here
+ *		}
+ *
+ *		void main(void)
+ *		{
+ *			INTC_Init();
+ *			INTC_RegisterGroupHandler(INTC_IRQ_GROUP(AVR32_USBB_IRQ), AVR32_INTC_INT0, USB_Group_IRQ_Handler);
+ *		}
+ *  \endcode
+ *
+ *  @{
+ */
+
+#ifndef _UC3_INTERRUPT_MANAGEMENT_H_
+#define _UC3_INTERRUPT_MANAGEMENT_H_
+
+	/* Includes: */
+		#include "../../Common/Common.h"
+
+	/* Enable C linkage for C++ Compilers: */
+		#if defined(__cplusplus)
+			extern "C" {
+		#endif
+
+	/* Private Interface - For use in library only: */
+	#if !defined(__DOXYGEN__)
+		/* Type Defines: */
+			typedef void (*InterruptHandlerPtr_t)(void);
+
+		/* External Variables: */
+			#if defined(__INCLUDE_FROM_INTMANAGEMENT_C)
+				extern const void        EVBA_Table;
+			#endif
+			extern InterruptHandlerPtr_t InterruptHandlers[AVR32_INTC_NUM_INT_GRPS];
+			extern const uint32_t        Autovector_Table[];
+	#endif
+
+	/* Public Interface - May be used in end-application: */
+		/* Macros: */
+			/** Converts a given interrupt index into its associated interrupt group.
+			 *
+			 *  \param[in] IRQIndex  Index of the interrupt request to convert.
+			 *
+			 *  \return Interrupt group number associated with the interrupt index.
+			 */
+			#define INTC_IRQ_GROUP(IRQIndex)  (IRQIndex / 32)
+
+			/** Converts a given interrupt index into its associated interrupt line.
+			 *
+			 *  \param[in] IRQIndex  Index of the interrupt request to convert.
+			 *
+			 *  \return Interrupt line number associated with the interrupt index.
+			 */
+			#define INTC_IRQ_LINE(IRQIndex)   (IRQIndex % 32)
+
+		/* Function Prototypes: */
+			/** Initializes the interrupt controller ready to handle interrupts. This must be called at the
+			 *  start of the user program before any interrupts are registered or enabled.
+			 */
+			void INTC_Init(void);
+
+			/** Retrieves the associated interrupt handler for the interrupt group currently being fired. This
+			 *  is called directly from the exception handler routine before dispatching to the ISR.
+			 *
+			 *  \param[in] InterruptLevel  Priority level of the interrupt.
+			 *
+			 *  \return Pointer to the associated interrupt handler function, or NULL if no handler set.
+			 */
+			InterruptHandlerPtr_t INTC_GetInterruptHandler(const uint_reg_t InterruptLevel);
+
+		/* Inline Functions: */
+			/** Registers a handler for a given interrupt group. On the AVR32 UC3 devices, interrupts are grouped by
+			 *  peripheral. To save on SRAM used, a single ISR handles all interrupt lines within a single group - to
+			 *  determine the exact line that has interrupted within the group ISR handler, use \ref INTC_GetGroupInterrupts().
+			 *
+			 *  If multiple interrupts with the same group are registered, the last registered handler will become the
+			 *  handler called for interrupts raised within that group.
+			 *
+			 *  To obtain the group number of a specific interrupt index, use the \ref INTC_IRQ_GROUP() macro.
+			 *
+			 *  \param[in] GroupNumber       Group number of the interrupt group to register a handler for.
+			 *  \param[in] InterruptLevel    Priority level for the specified interrupt, a \c AVR32_INTC_INT* mask.
+			 *  \param[in] Handler           Address of the ISR handler for the interrupt group.
+			 */
+			static inline void INTC_RegisterGroupHandler(const uint16_t GroupNumber,
+			                                             const uint8_t InterruptLevel,
+			                                             const InterruptHandlerPtr_t Handler) ATTR_ALWAYS_INLINE;
+			static inline void INTC_RegisterGroupHandler(const uint16_t GroupNumber,
+			                                             const uint8_t InterruptLevel,
+			                                             const InterruptHandlerPtr_t Handler)
+			{
+				InterruptHandlers[GroupNumber] = Handler;
+				AVR32_INTC.ipr[GroupNumber]    = Autovector_Table[InterruptLevel];
+			}
+
+			/** Retrieves the pending interrupts for a given interrupt group. The result of this function should be masked
+			 *  against interrupt request indexes converted to a request line number via the \ref INTC_IRQ_LINE() macro. To
+			 *  obtain the group number of a given interrupt request, use the \ref INTC_IRQ_GROUP() macro.
+			 *
+			 *  \param[in] GroupNumber Group number of the interrupt group to check.
+			 *
+			 *  \return Mask of pending interrupt lines for the given interrupt group.
+			 */
+			static inline uint_reg_t INTC_GetGroupInterrupts(const uint16_t GroupNumber) ATTR_ALWAYS_INLINE;
+			static inline uint_reg_t INTC_GetGroupInterrupts(const uint16_t GroupNumber)
+			{
+				return AVR32_INTC.irr[GroupNumber];
+			}
+
+	/* Disable C linkage for C++ Compilers: */
+		#if defined(__cplusplus)
+			}
+		#endif
+
+#endif
+
+/** @} */
+
diff --git a/lib/lufa/LUFA/Platform/UC3/UC3ExperimentalInfo.txt b/lib/lufa/LUFA/Platform/UC3/UC3ExperimentalInfo.txt
new file mode 100644
index 0000000000..8aadb3ed79
--- /dev/null
+++ b/lib/lufa/LUFA/Platform/UC3/UC3ExperimentalInfo.txt
@@ -0,0 +1 @@
+Please note that the UC3 architecture support is EXPERIMENTAL at this time, and may be non-functional/incomplete in some areas. Please refer to the Known Issues section of the LUFA manual.
\ No newline at end of file