/* ---------------------------------------------------------------------------- | |
* 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 | |
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, | |
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* ---------------------------------------------------------------------------- | |
*/ | |
//------------------------------------------------------------------------------ | |
// Headers | |
//------------------------------------------------------------------------------ | |
#include "aic.h" | |
#include <board.h> | |
//------------------------------------------------------------------------------ | |
// Exported functions | |
//------------------------------------------------------------------------------ | |
//------------------------------------------------------------------------------ | |
/// Configures the interrupt associated with the given source, using the | |
/// specified mode and interrupt handler. | |
/// \param source Interrupt source to configure. | |
/// \param mode Triggering mode of the interrupt. | |
/// \param handler Interrupt handler function. | |
//------------------------------------------------------------------------------ | |
void AIC_ConfigureIT(unsigned int source, | |
unsigned int mode, | |
void (*handler)( void )) | |
{ | |
// Disable the interrupt first | |
AT91C_BASE_AIC->AIC_IDCR = 1 << source; | |
// Configure mode and handler | |
AT91C_BASE_AIC->AIC_SMR[source] = mode; | |
AT91C_BASE_AIC->AIC_SVR[source] = (unsigned int) handler; | |
// Clear interrupt | |
AT91C_BASE_AIC->AIC_ICCR = 1 << source; | |
} | |
//------------------------------------------------------------------------------ | |
/// Enables interrupts coming from the given (unique) source. | |
/// \param source Interrupt source to enable. | |
//------------------------------------------------------------------------------ | |
void AIC_EnableIT(unsigned int source) | |
{ | |
AT91C_BASE_AIC->AIC_IECR = 1 << source; | |
} | |
//------------------------------------------------------------------------------ | |
/// Disables interrupts coming from the given (unique) source. | |
/// \param source Interrupt source to enable. | |
//------------------------------------------------------------------------------ | |
void AIC_DisableIT(unsigned int source) | |
{ | |
AT91C_BASE_AIC->AIC_IDCR = 1 << source; | |
} | |