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+/*
+ LUFA Library
+ Copyright (C) Dean Camera, 2011.
+
+ dean [at] fourwalledcubicle [dot] com
+ www.lufa-lib.org
+*/
+
+/*
+ Copyright 2011 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 disclaim 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.
+*/
+
+#ifndef _INTERRUPT_MANAGEMENT_H_
+#define _INTERRUPT_MANAGEMENT_H_
+
+ /* Includes: */
+ #include <avr32/io.h>
+ #include <stdbool.h>
+ #include <stdint.h>
+
+ #include <LUFA/Common/Common.h>
+
+ /* Macros: */
+ #if !defined(ISR)
+ #define ISR(Name) void Name (void) __attribute__((__interrupt__)); void Name (void)
+ #endif
+
+ #define INTC_EnableInterrupts() do { GCC_MEMORY_BARRIER(); __builtin_csrf(AVR32_SR_GM_OFFSET); } while (0)
+ #define INTC_DisableInterrupts() do { __builtin_ssrf(AVR32_SR_GM_OFFSET); GCC_MEMORY_BARRIER(); } while (0)
+
+ /* Type Defines: */
+ typedef void (*InterruptHandlerPtr_t)(void);
+
+ /* External Variables: */
+ extern const void EVBA_Table;
+ extern const uint32_t Autovector_Table[];
+ extern InterruptHandlerPtr_t InterruptHandlers[AVR32_INTC_NUM_INT_GRPS];
+
+ /* Function Prototypes: */
+ void INTC_Init(void);
+
+ /* 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, examine the module's interrupt
+ * flag register bits.
+ *
+ * If multiple interrupts with the same group are registered, the last registered handler will become the
+ * handler called for interrupts raised within that group.
+ *
+ * \param[in] InterruptRequest Interrupt request index for the given interrupt, a AVR32_*_IRQ mask.
+ * \param[in] InterruptLevel Priority level for the specified interrupt, a AVR32_INTC_INT* mask.
+ * \param[in] Handler Address of the ISR handler for the interrupt group.
+ */
+ static inline void INTC_RegisterGroupHandler(const uint16_t InterruptRequest,
+ const uint8_t InterruptLevel,
+ const InterruptHandlerPtr_t Handler)
+ {
+ uint8_t InterruptGroup = (InterruptRequest >> 5);
+
+ InterruptHandlers[InterruptGroup] = Handler;
+ AVR32_INTC.ipr[InterruptGroup] = Autovector_Table[InterruptLevel];
+ }
+
+#endif