2013-01-08 22:40:58 +08:00
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/* This header file is part of the ATMEL AVR-UC3-SoftwareFramework-1.7.0 Release */
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/*This file is prepared for Doxygen automatic documentation generation.*/
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/*! \file *********************************************************************
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*
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* \brief INTC driver for AVR32 UC3.
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*
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* AVR32 Interrupt Controller driver module.
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*
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* - Compiler: IAR EWAVR32 and GNU GCC for AVR32
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* - Supported devices: All AVR32 devices with an INTC module can be used.
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* - AppNote:
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*
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* \author Atmel Corporation: http://www.atmel.com \n
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* Support and FAQ: http://support.atmel.no/
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*
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******************************************************************************/
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/* Copyright (c) 2009 Atmel Corporation. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* 3. The name of Atmel may not be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* 4. This software may only be redistributed and used in connection with an Atmel
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* AVR product.
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*
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* THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
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* EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR
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* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE
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*
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*/
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#ifndef _INTC_H_
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#define _INTC_H_
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#include "compiler.h"
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//! Maximal number of interrupt request lines per group.
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#define AVR32_INTC_MAX_NUM_IRQS_PER_GRP 32
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//! Number of interrupt priority levels.
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#define AVR32_INTC_NUM_INT_LEVELS (1 << AVR32_INTC_IPR_INTLEVEL_SIZE)
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#ifdef __AVR32_ABI_COMPILER__ // Automatically defined when compiling for AVR32, not when assembling.
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//! Pointer to interrupt handler.
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#if (defined __GNUC__)
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typedef void (*__int_handler)(void);
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#elif (defined __ICCAVR32__)
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typedef void (__interrupt *__int_handler)(void);
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#endif
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/*! \brief Initializes the hardware interrupt controller driver.
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*
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* \note Taken and adapted from Newlib.
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*/
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extern void INTC_init_interrupts(void);
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/*! \brief Registers an interrupt handler.
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*
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* \param handler Interrupt handler to register.
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* \param irq IRQ of the interrupt handler to register.
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* \param int_level Interrupt priority level to assign to the group of this IRQ.
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*
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* \warning The interrupt handler must manage the `rete' instruction, what can
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* be done thanks to pure assembly, inline assembly or the
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* `__attribute__((__interrupt__))' C function attribute.
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*
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* \warning If several interrupt handlers of a same group are registered with
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* different priority levels, only the latest priority level set will
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* be effective.
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*
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* \note Taken and adapted from Newlib.
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*/
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extern void INTC_register_interrupt(__int_handler handler, unsigned int irq, unsigned int int_level);
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#endif // __AVR32_ABI_COMPILER__
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#endif // _INTC_H_
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