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