| /* ---------------------------------------------------------------------------- | |
| * 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, | |
| * 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 <cmsis/core_cm3.h> | |
| #endif | |
| //------------------------------------------------------------------------------ | |
| // Definitions | |
| //------------------------------------------------------------------------------ | |
| #if defined(cortexm3) | |
| #ifdef __NVIC_PRIO_BITS | |
| #undef __NVIC_PRIO_BITS | |
| #define __NVIC_PRIO_BITS ((SCB->AIRCR & 0x700) >> 8) | |
| #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 | |