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-rw-r--r--lib/lufa/LUFA/Platform/Platform.h80
-rw-r--r--lib/lufa/LUFA/Platform/UC3/ClockManagement.h338
-rw-r--r--lib/lufa/LUFA/Platform/UC3/Exception.S128
-rw-r--r--lib/lufa/LUFA/Platform/UC3/InterruptManagement.c62
-rw-r--r--lib/lufa/LUFA/Platform/UC3/InterruptManagement.h174
-rw-r--r--lib/lufa/LUFA/Platform/UC3/UC3ExperimentalInfo.txt1
-rw-r--r--lib/lufa/LUFA/Platform/XMEGA/ClockManagement.h397
-rw-r--r--lib/lufa/LUFA/Platform/XMEGA/XMEGAExperimentalInfo.txt1
8 files changed, 1181 insertions, 0 deletions
diff --git a/lib/lufa/LUFA/Platform/Platform.h b/lib/lufa/LUFA/Platform/Platform.h
new file mode 100644
index 000000000..9997d797f
--- /dev/null
+++ b/lib/lufa/LUFA/Platform/Platform.h
@@ -0,0 +1,80 @@
+/*
+ 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 Hardware Platform Drivers.
+ *
+ * This file is the master dispatch header file for the device-specific hardware platform drivers, for low level
+ * hardware configuration and management. The platform drivers are a set of drivers which are designed to provide
+ * a high level management layer for the various low level system functions such as clock control and interrupt
+ * management.
+ *
+ * User code may choose to either include this master dispatch header file to include all available platform
+ * driver header files for the current architecture, or may choose to only include the specific platform driver
+ * modules required for a particular application.
+ */
+
+/** \defgroup Group_PlatformDrivers System Platform Drivers - LUFA/Platform/Platform.h
+ * \brief Hardware platform drivers.
+ *
+ * \section Sec_PlatformDrivers_Dependencies Module Source Dependencies
+ * The following files must be built with any user project that uses this module:
+ * - <b>UC3 Architecture Only:</b> LUFA/Platform/UC3/InterruptManagement.c <i>(Makefile source module name: LUFA_SRC_PLATFORM)</i>
+ * - <b>UC3 Architecture Only:</b> LUFA/Platform/UC3/Exception.S <i>(Makefile source module name: LUFA_SRC_PLATFORM)</i>
+ *
+ * \section Sec_PlatformDrivers_ModDescription Module Description
+ * Device-specific hardware platform drivers, for low level hardware configuration and management. The platform
+ * drivers are a set of drivers which are designed to provide a high level management layer for the various low level
+ * system functions such as clock control and interrupt management.
+ *
+ * User code may choose to either include this master dispatch header file to include all available platform
+ * driver header files for the current architecture, or may choose to only include the specific platform driver
+ * modules required for a particular application.
+ *
+ * \note The exact APIs and availability of sub-modules within the platform driver group may vary depending on the
+ * target used - see individual target module documentation for the API specific to your target processor.
+ */
+
+#ifndef __LUFA_PLATFORM_H__
+#define __LUFA_PLATFORM_H__
+
+ /* Includes: */
+ #include "../Common/Common.h"
+
+ /* Includes: */
+ #if (ARCH == ARCH_UC3)
+ #include "UC3/ClockManagement.h"
+ #include "UC3/InterruptManagement.h"
+ #elif (ARCH == ARCH_XMEGA)
+ #include "XMEGA/ClockManagement.h"
+ #endif
+
+#endif
+
diff --git a/lib/lufa/LUFA/Platform/UC3/ClockManagement.h b/lib/lufa/LUFA/Platform/UC3/ClockManagement.h
new file mode 100644
index 000000000..5f286d51d
--- /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 000000000..59f16f16f
--- /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 000000000..b99be24b9
--- /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 000000000..b05193037
--- /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 000000000..8aadb3ed7
--- /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
diff --git a/lib/lufa/LUFA/Platform/XMEGA/ClockManagement.h b/lib/lufa/LUFA/Platform/XMEGA/ClockManagement.h
new file mode 100644
index 000000000..eb941d9a3
--- /dev/null
+++ b/lib/lufa/LUFA/Platform/XMEGA/ClockManagement.h
@@ -0,0 +1,397 @@
+/*
+ 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 AVR USB XMEGA microcontrollers.
+ *
+ * Clock management driver for the AVR USB XMEGA microcontrollers. This driver allows for the configuration
+ * of the various clocks within the device to clock the various peripherals.
+ */
+
+/** \ingroup Group_PlatformDrivers_XMEGA
+ * \defgroup Group_PlatformDrivers_XMEGAClocks Clock Management Driver - LUFA/Platform/XMEGA/ClockManagement.h
+ * \brief Module Clock Driver for the AVR USB XMEGA microcontrollers.
+ *
+ * \section Sec_PlatformDrivers_XMEGAClocks_Dependencies Module Source Dependencies
+ * The following files must be built with any user project that uses this module:
+ * - None
+ *
+ * \section Sec_PlatformDrivers_XMEGAClocks_ModDescription Module Description
+ * Clock management driver for the AVR USB XMEGA 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/XMEGA/ClockManagement.h>
+ *
+ * void main(void)
+ * {
+ * // Start the PLL to multiply the 2MHz RC oscillator to F_CPU and switch the CPU core to run from it
+ * XMEGACLK_StartPLL(CLOCK_SRC_INT_RC2MHZ, 2000000, F_CPU);
+ * XMEGACLK_SetCPUClockSource(CLOCK_SRC_PLL);
+ *
+ * // Start the 32MHz internal RC oscillator and start the DFLL to increase it to F_USB using the USB SOF as a reference
+ * XMEGACLK_StartInternalOscillator(CLOCK_SRC_INT_RC32MHZ);
+ * XMEGACLK_StartDFLL(CLOCK_SRC_INT_RC32MHZ, DFLL_REF_INT_USBSOF, F_USB);
+ * }
+ * \endcode
+ *
+ * @{
+ */
+
+#ifndef _XMEGA_CLOCK_MANAGEMENT_H_
+#define _XMEGA_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 frequency ranges. */
+ enum XMEGA_Extern_OSC_ClockFrequency_t
+ {
+ EXOSC_FREQ_2MHZ_MAX = OSC_FRQRANGE_04TO2_gc, /**< External crystal oscillator equal to or slower than 2MHz. */
+ EXOSC_FREQ_9MHZ_MAX = OSC_FRQRANGE_2TO9_gc, /**< External crystal oscillator equal to or slower than 9MHz. */
+ EXOSC_FREQ_12MHZ_MAX = OSC_FRQRANGE_9TO12_gc, /**< External crystal oscillator equal to or slower than 12MHz. */
+ EXOSC_FREQ_16MHZ_MAX = OSC_FRQRANGE_12TO16_gc, /**< External crystal oscillator equal to or slower than 16MHz. */
+ };
+
+ /** Enum for the possible external oscillator startup times. */
+ enum XMEGA_Extern_OSC_ClockStartup_t
+ {
+ EXOSC_START_6CLK = OSC_XOSCSEL_EXTCLK_gc, /**< Wait 6 clock cycles before startup (external clock). */
+ EXOSC_START_32KCLK = OSC_XOSCSEL_32KHz_gc, /**< Wait 32K clock cycles before startup (32.768KHz crystal). */
+ EXOSC_START_256CLK = OSC_XOSCSEL_XTAL_256CLK_gc, /**< Wait 256 clock cycles before startup. */
+ EXOSC_START_1KCLK = OSC_XOSCSEL_XTAL_1KCLK_gc, /**< Wait 1K clock cycles before startup. */
+ EXOSC_START_16KCLK = OSC_XOSCSEL_XTAL_16KCLK_gc, /**< Wait 16K clock cycles before startup. */
+ };
+
+ /** Enum for the possible module clock sources. */
+ enum XMEGA_System_ClockSource_t
+ {
+ CLOCK_SRC_INT_RC2MHZ = 0, /**< Clock sourced from the Internal 2MHz RC Oscillator clock. */
+ CLOCK_SRC_INT_RC32MHZ = 1, /**< Clock sourced from the Internal 32MHz RC Oscillator clock. */
+ CLOCK_SRC_INT_RC32KHZ = 2, /**< Clock sourced from the Internal 32KHz RC Oscillator clock. */
+ CLOCK_SRC_XOSC = 3, /**< Clock sourced from the External Oscillator clock. */
+ CLOCK_SRC_PLL = 4, /**< Clock sourced from the Internal PLL clock. */
+ };
+
+ /** Enum for the possible DFLL clock reference sources. */
+ enum XMEGA_System_DFLLReference_t
+ {
+ DFLL_REF_INT_RC32KHZ = 0, /**< Reference clock sourced from the Internal 32KHz RC Oscillator clock. */
+ DFLL_REF_EXT_RC32KHZ = 1, /**< Reference clock sourced from the External 32KHz RC Oscillator clock connected to TOSC pins. */
+ DFLL_REF_INT_USBSOF = 2, /**< Reference clock sourced from the USB Start Of Frame packets. */
+ };
+
+ /* Inline Functions: */
+ /** Write a value to a location protected by the XMEGA CCP protection mechanism. This function uses inline assembly to ensure that
+ * the protected address is written to within four clock cycles of the CCP key being written.
+ *
+ * \param[in] Address Address to write to, a memory address protected by the CCP mechanism
+ * \param[in] Value Value to write to the protected location
+ */
+ static inline void XMEGACLK_CCP_Write(volatile void* Address, const uint8_t Value) ATTR_NON_NULL_PTR_ARG(1) ATTR_ALWAYS_INLINE;
+ static inline void XMEGACLK_CCP_Write(volatile void* Address, const uint8_t Value)
+ {
+ __asm__ __volatile__ (
+ "out %0, __zero_reg__" "\n\t" /* Zero RAMPZ using fixed zero value register */
+ "movw r30, %1" "\n\t" /* Copy address to Z register pair */
+ "out %2, %3" "\n\t" /* Write key to CCP register */
+ "st Z, %4" "\n\t" /* Indirectly write value to address */
+ : /* No output operands */
+ : /* Input operands: */ "m" (RAMPZ), "e" (Address), "m" (CCP), "r" (CCP_IOREG_gc), "r" (Value)
+ : /* Clobbered registers: */ "r30", "r31"
+ );
+ }
+
+ /** Starts the external oscillator of the XMEGA microcontroller, with the given options. This routine blocks until
+ * the oscillator is ready for use.
+ *
+ * \param[in] FreqRange Frequency range of the external oscillator, a value from \ref XMEGA_Extern_OSC_ClockFrequency_t.
+ * \param[in] Startup Startup time of the external oscillator, a value from \ref XMEGA_Extern_OSC_ClockStartup_t.
+ *
+ * \return Boolean \c true if the external oscillator was successfully started, \c false if invalid parameters specified.
+ */
+ static inline bool XMEGACLK_StartExternalOscillator(const uint8_t FreqRange,
+ const uint8_t Startup) ATTR_ALWAYS_INLINE;
+ static inline bool XMEGACLK_StartExternalOscillator(const uint8_t FreqRange,
+ const uint8_t Startup)
+ {
+ OSC.XOSCCTRL = (FreqRange | ((Startup == EXOSC_START_32KCLK) ? OSC_X32KLPM_bm : 0) | Startup);
+ OSC.CTRL |= OSC_XOSCEN_bm;
+
+ while (!(OSC.STATUS & OSC_XOSCRDY_bm));
+ return true;
+ }
+
+ /** Stops the external oscillator of the XMEGA microcontroller. */
+ static inline void XMEGACLK_StopExternalOscillator(void) ATTR_ALWAYS_INLINE;
+ static inline void XMEGACLK_StopExternalOscillator(void)
+ {
+ OSC.CTRL &= ~OSC_XOSCEN_bm;
+ }
+
+ /** Starts the given internal oscillator of the XMEGA microcontroller, with the given options. This routine blocks until
+ * the oscillator is ready for use.
+ *
+ * \param[in] Source Internal oscillator to start, a value from \ref XMEGA_System_ClockSource_t.
+ *
+ * \return Boolean \c true if the internal oscillator was successfully started, \c false if invalid parameters specified.
+ */
+ static inline bool XMEGACLK_StartInternalOscillator(const uint8_t Source) ATTR_ALWAYS_INLINE;
+ static inline bool XMEGACLK_StartInternalOscillator(const uint8_t Source)
+ {
+ switch (Source)
+ {
+ case CLOCK_SRC_INT_RC2MHZ:
+ OSC.CTRL |= OSC_RC2MEN_bm;
+ while (!(OSC.STATUS & OSC_RC2MRDY_bm));
+ return true;
+ case CLOCK_SRC_INT_RC32MHZ:
+ OSC.CTRL |= OSC_RC32MEN_bm;
+ while (!(OSC.STATUS & OSC_RC32MRDY_bm));
+ return true;
+ case CLOCK_SRC_INT_RC32KHZ:
+ OSC.CTRL |= OSC_RC32KEN_bm;
+ while (!(OSC.STATUS & OSC_RC32KRDY_bm));
+ return true;
+ default:
+ return false;
+ }
+ }
+
+ /** Stops the given internal oscillator of the XMEGA microcontroller.
+ *
+ * \param[in] Source Internal oscillator to stop, a value from \ref XMEGA_System_ClockSource_t.
+ *
+ * \return Boolean \c true if the internal oscillator was successfully stopped, \c false if invalid parameters specified.
+ */
+ static inline bool XMEGACLK_StopInternalOscillator(const uint8_t Source) ATTR_ALWAYS_INLINE;
+ static inline bool XMEGACLK_StopInternalOscillator(const uint8_t Source)
+ {
+ switch (Source)
+ {
+ case CLOCK_SRC_INT_RC2MHZ:
+ OSC.CTRL &= ~OSC_RC2MEN_bm;
+ return true;
+ case CLOCK_SRC_INT_RC32MHZ:
+ OSC.CTRL &= ~OSC_RC32MEN_bm;
+ return true;
+ case CLOCK_SRC_INT_RC32KHZ:
+ OSC.CTRL &= ~OSC_RC32KEN_bm;
+ return true;
+ default:
+ return false;
+ }
+ }
+
+ /** Starts the PLL of the XMEGA 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] Source Clock source for the PLL, a value from \ref XMEGA_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 XMEGACLK_StartPLL(const uint8_t Source,
+ const uint32_t SourceFreq,
+ const uint32_t Frequency) ATTR_ALWAYS_INLINE;
+ static inline bool XMEGACLK_StartPLL(const uint8_t Source,
+ const uint32_t SourceFreq,
+ const uint32_t Frequency)
+ {
+ uint8_t MulFactor = (Frequency / SourceFreq);
+
+ if (SourceFreq > Frequency)
+ return false;
+
+ if (MulFactor > 31)
+ return false;
+
+ switch (Source)
+ {
+ case CLOCK_SRC_INT_RC2MHZ:
+ OSC.PLLCTRL = (OSC_PLLSRC_RC2M_gc | MulFactor);
+ break;
+ case CLOCK_SRC_INT_RC32MHZ:
+ OSC.PLLCTRL = (OSC_PLLSRC_RC32M_gc | MulFactor);
+ break;
+ case CLOCK_SRC_XOSC:
+ OSC.PLLCTRL = (OSC_PLLSRC_XOSC_gc | MulFactor);
+ break;
+ default:
+ return false;
+ }
+
+ OSC.CTRL |= OSC_PLLEN_bm;
+
+ while (!(OSC.STATUS & OSC_PLLRDY_bm));
+ return true;
+ }
+
+ /** Stops the PLL of the XMEGA microcontroller. */
+ static inline void XMEGACLK_StopPLL(void) ATTR_ALWAYS_INLINE;
+ static inline void XMEGACLK_StopPLL(void)
+ {
+ OSC.CTRL &= ~OSC_PLLEN_bm;
+ }
+
+ /** Starts the DFLL of the XMEGA microcontroller, with the given options.
+ *
+ * \param[in] Source RC Clock source for the DFLL, a value from \ref XMEGA_System_ClockSource_t.
+ * \param[in] Reference Reference clock source for the DFLL, an value from \ref XMEGA_System_DFLLReference_t.
+ * \param[in] Frequency Target frequency of the DFLL's output.
+ *
+ * \return Boolean \c true if the DFLL was successfully started, \c false if invalid parameters specified.
+ */
+ static inline bool XMEGACLK_StartDFLL(const uint8_t Source,
+ const uint8_t Reference,
+ const uint32_t Frequency) ATTR_ALWAYS_INLINE;
+ static inline bool XMEGACLK_StartDFLL(const uint8_t Source,
+ const uint8_t Reference,
+ const uint32_t Frequency)
+ {
+ uint16_t DFLLCompare = (Frequency / 1024);
+
+ switch (Source)
+ {
+ case CLOCK_SRC_INT_RC2MHZ:
+ OSC.DFLLCTRL |= (Reference << OSC_RC2MCREF_bp);
+ DFLLRC2M.COMP1 = (DFLLCompare & 0xFF);
+ DFLLRC2M.COMP2 = (DFLLCompare >> 8);
+ DFLLRC2M.CTRL = DFLL_ENABLE_bm;
+ break;
+ case CLOCK_SRC_INT_RC32MHZ:
+ OSC.DFLLCTRL |= (Reference << OSC_RC32MCREF_gp);
+ DFLLRC32M.COMP1 = (DFLLCompare & 0xFF);
+ DFLLRC32M.COMP2 = (DFLLCompare >> 8);
+
+ if (Reference == DFLL_REF_INT_USBSOF)
+ {
+ NVM.CMD = NVM_CMD_READ_CALIB_ROW_gc;
+ DFLLRC32M.CALA = pgm_read_byte(offsetof(NVM_PROD_SIGNATURES_t, USBRCOSCA));
+ DFLLRC32M.CALB = pgm_read_byte(offsetof(NVM_PROD_SIGNATURES_t, USBRCOSC));
+ NVM.CMD = 0;
+ }
+
+ DFLLRC32M.CTRL = DFLL_ENABLE_bm;
+ break;
+ default:
+ return false;
+ }
+
+ return true;
+ }
+
+ /** Stops the given DFLL of the XMEGA microcontroller.
+ *
+ * \param[in] Source RC Clock source for the DFLL to be stopped, a value from \ref XMEGA_System_ClockSource_t.
+ *
+ * \return Boolean \c true if the DFLL was successfully stopped, \c false if invalid parameters specified.
+ */
+ static inline bool XMEGACLK_StopDFLL(const uint8_t Source) ATTR_ALWAYS_INLINE;
+ static inline bool XMEGACLK_StopDFLL(const uint8_t Source)
+ {
+ switch (Source)
+ {
+ case CLOCK_SRC_INT_RC2MHZ:
+ DFLLRC2M.CTRL = 0;
+ break;
+ case CLOCK_SRC_INT_RC32MHZ:
+ DFLLRC32M.CTRL = 0;
+ break;
+ default:
+ return 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.
+ *
+ * \param[in] Source Clock source for the CPU core, a value from \ref XMEGA_System_ClockSource_t.
+ *
+ * \return Boolean \c true if the CPU core clock was successfully altered, \c false if invalid parameters specified.
+ */
+ static inline bool XMEGACLK_SetCPUClockSource(const uint8_t Source) ATTR_ALWAYS_INLINE;
+ static inline bool XMEGACLK_SetCPUClockSource(const uint8_t Source)
+ {
+ uint8_t ClockSourceMask = 0;
+
+ switch (Source)
+ {
+ case CLOCK_SRC_INT_RC2MHZ:
+ ClockSourceMask = CLK_SCLKSEL_RC2M_gc;
+ break;
+ case CLOCK_SRC_INT_RC32MHZ:
+ ClockSourceMask = CLK_SCLKSEL_RC32M_gc;
+ break;
+ case CLOCK_SRC_INT_RC32KHZ:
+ ClockSourceMask = CLK_SCLKSEL_RC32K_gc;
+ break;
+ case CLOCK_SRC_XOSC:
+ ClockSourceMask = CLK_SCLKSEL_XOSC_gc;
+ break;
+ case CLOCK_SRC_PLL:
+ ClockSourceMask = CLK_SCLKSEL_PLL_gc;
+ break;
+ default:
+ return false;
+ }
+
+ uint_reg_t CurrentGlobalInt = GetGlobalInterruptMask();
+ GlobalInterruptDisable();
+
+ XMEGACLK_CCP_Write(&CLK.CTRL, ClockSourceMask);
+
+ SetGlobalInterruptMask(CurrentGlobalInt);
+
+ Delay_MS(1);
+ return (CLK.CTRL == ClockSourceMask);
+ }
+
+ /* Disable C linkage for C++ Compilers: */
+ #if defined(__cplusplus)
+ }
+ #endif
+
+#endif
+
+/** @} */
+
diff --git a/lib/lufa/LUFA/Platform/XMEGA/XMEGAExperimentalInfo.txt b/lib/lufa/LUFA/Platform/XMEGA/XMEGAExperimentalInfo.txt
new file mode 100644
index 000000000..42144aac4
--- /dev/null
+++ b/lib/lufa/LUFA/Platform/XMEGA/XMEGAExperimentalInfo.txt
@@ -0,0 +1 @@
+Please note that the XMEGA 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