interrupt.h

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/*
 * Copyright (c) 2014, Eistec AB.
 * All rights reserved.
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 * 1. Redistributions of source code must retain the above copyright
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 * 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. Neither the name of the copyright holder nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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 *
 * This file is part of the Mulle platform port of the Contiki operating system.
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 */


/**
 * \file
 *         K60 interrupt save/restore macros.
 * \author
 *         Henrik Mäkitaavola <henrik.makitaavola@ltu.se>
 */
#ifndef INTERRUPT_H
#define INTERRUPT_H

#ifdef __cplusplus
extern "C" {
#endif

#define MK60_ENABLE_INTERRUPT() asm(" CPSIE i")
#define MK60_DISABLE_INTERRUPT() asm(" CPSID i")

#define MK60_ENTER_CRITICAL_REGION() \
  unsigned int CRITICAL_PRIMASK; \
  asm volatile ( \
    "mrs %[old], primask\n" \
    "cpsid i" \
    :[old] "=&r" (CRITICAL_PRIMASK));

#define MK60_LEAVE_CRITICAL_REGION() \
  asm volatile ( \
    "msr primask, %[old]" \
    : \
    :[old] "r" (CRITICAL_PRIMASK));

#ifdef __cplusplus
} /* extern "C" */
#endif

#endif /* INTERRUPT_H */