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64 lines
2.2 KiB
64 lines
2.2 KiB
/*
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LUFA Library
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Copyright (C) Dean Camera, 2012.
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dean [at] fourwalledcubicle [dot] com
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www.lufa-lib.org
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*/
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/*
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Copyright 2012 Dean Camera (dean [at] fourwalledcubicle [dot] com)
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Permission to use, copy, modify, distribute, and sell this
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software and its documentation for any purpose is hereby granted
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without fee, provided that the above copyright notice appear in
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all copies and that both that the copyright notice and this
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permission notice and warranty disclaimer appear in supporting
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documentation, and that the name of the author not be used in
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advertising or publicity pertaining to distribution of the
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software without specific, written prior permission.
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The author disclaim all warranties with regard to this
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software, including all implied warranties of merchantability
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and fitness. In no event shall the author be liable for any
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special, indirect or consequential damages or any damages
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whatsoever resulting from loss of use, data or profits, whether
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in an action of contract, negligence or other tortious action,
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arising out of or in connection with the use or performance of
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this software.
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*/
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#include "InterruptManagement.h"
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/** Interrupt vector table, containing the ISR to call for each interrupt group */
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InterruptHandlerPtr_t InterruptHandlers[AVR32_INTC_NUM_INT_GRPS];
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/** ISR for unhandled interrupt groups */
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ISR(Unhandled_Interrupt)
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{
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for (;;);
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}
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/** Retrieves the associated interrupt handler for the interrupt group currently being fired. This
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* is called directly from the exception handler routine before dispatching to the ISR.
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*/
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InterruptHandlerPtr_t INTC_GetInterruptHandler(const uint_reg_t InterruptLevel)
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{
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return InterruptHandlers[AVR32_INTC.icr[AVR32_INTC_INT3 - InterruptLevel]];
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}
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/** Initializes the interrupt controller ready to handle interrupts. This must be called at the
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* start of the user program before any interrupts are registered or enabled.
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*/
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void INTC_Init(void)
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{
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for (uint8_t InterruptGroup = 0; InterruptGroup < AVR32_INTC_NUM_INT_GRPS; InterruptGroup++)
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{
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InterruptHandlers[InterruptGroup] = Unhandled_Interrupt;
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AVR32_INTC.ipr[InterruptGroup] = Autovector_Table[AVR32_INTC_INT0];
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}
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__builtin_mtsr(AVR32_EVBA, (uintptr_t)&EVBA_Table);
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}
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