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/* ----------------------------------------------------------------------------
* ATMEL Microcontroller Software Support
* ----------------------------------------------------------------------------
* Copyright (c) 2008, 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:
*
* - Redistributions of source code must retain the above copyright notice,
* this list of conditions and the disclaimer below.
*
* Atmel's name may not be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* DISCLAIMER: 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
* 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.
* ----------------------------------------------------------------------------
*/
//------------------------------------------------------------------------------
/// \unit
///
/// !Purpose
///
/// Methods and definitions for configuring interrupts.
///
/// !Usage
///
/// -# Configure an interrupt source using IRQ_ConfigureIT
/// -# Enable or disable interrupt generation of a particular source with
/// IRQ_EnableIT and IRQ_DisableIT.
///
/// \note Most of the time, peripheral interrupts must be also configured
/// inside the peripheral itself.
//------------------------------------------------------------------------------
#ifndef IRQ_H
#define IRQ_H
//------------------------------------------------------------------------------
// Headers
//------------------------------------------------------------------------------
#include <board.h>
#if defined(cortexm3)
#include <core_cm3.h>
#endif
//------------------------------------------------------------------------------
// Definitions
//------------------------------------------------------------------------------
#if 0
#if defined(cortexm3)
#ifdef __NVIC_PRIO_BITS
#undef __NVIC_PRIO_BITS
#define __NVIC_PRIO_BITS ((SCB->AIRCR & 0x700) >> 8)
#endif
#endif
#endif
//------------------------------------------------------------------------------
// Global functions
//------------------------------------------------------------------------------
extern void IRQ_ConfigureIT(unsigned int source,
unsigned int mode, // mode for AIC, priority for NVIC
void( *handler )( void )); // ISR
extern void IRQ_EnableIT(unsigned int source);
extern void IRQ_DisableIT(unsigned int source);
#endif //#ifndef IRQ_H
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