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/**************************************************************************//**
* @file
* @brief Interrupt enable/disable unit API
* @author Energy Micro AS
* @version 3.0.0
******************************************************************************
* @section License
* <b>(C) Copyright 2012 Energy Micro AS, http://www.energymicro.com</b>
*******************************************************************************
*
* Permission is granted to anyone to use this software for any purpose,
* including commercial applications, and to alter it and redistribute it
* freely, subject to the following restrictions:
*
* 1. The origin of this software must not be misrepresented; you must not
* claim that you wrote the original software.
* 2. Altered source versions must be plainly marked as such, and must not be
* misrepresented as being the original software.
* 3. This notice may not be removed or altered from any source distribution.
*
* DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Energy Micro AS has no
* obligation to support this Software. Energy Micro AS is providing the
* Software "AS IS", with no express or implied warranties of any kind,
* including, but not limited to, any implied warranties of merchantability
* or fitness for any particular purpose or warranties against infringement
* of any proprietary rights of a third party.
*
* Energy Micro AS will not be liable for any consequential, incidental, or
* special damages, or any other relief, or for any claim by any third party,
* arising from your use of this Software.
*
*****************************************************************************/
#include <stdint.h>
#include "em_int.h"
/***************************************************************************//**
* @addtogroup EM_Library
* @{
******************************************************************************/
/***************************************************************************//**
* @addtogroup INT
* @brief Safe nesting interrupt disable/enable API
* @details
* This module contains functions to safely disable and enable interrupts
* at cpu level. INT_Disable() disables interrupts and increments a lock
* level counter. INT_Enable() decrements the lock level counter and enable
* interrupts if the counter was decremented to zero.
*
* These functions would normally be used to secure critical regions.
*
* These functions should also be used inside interrupt handlers:
* @verbatim
* void SysTick_Handler(void)
* {
* INT_Disable();
* .
* .
* .
* INT_Enable();
* }
* @endverbatim
******************************************************************************/
/** Interrupt lock level counter. Set to zero initially as we normally enter
* main with interrupts enabled */
uint32_t INT_LockCnt = 0;
/** @} (end addtogroup INT) */
/** @} (end addtogroup EM_Library) */
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