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/**
* Copyright (c) 2014 - 2017, Nordic Semiconductor ASA
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form, except as embedded into a Nordic
* Semiconductor ASA integrated circuit in a product or a software update for
* such product, 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 Nordic Semiconductor ASA nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* 4. This software, with or without modification, must only be used with a
* Nordic Semiconductor ASA integrated circuit.
*
* 5. Any software provided in binary form under this license must not be reverse
* engineered, decompiled, modified and/or disassembled.
*
* THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA OR CONTRIBUTORS 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.
*
*/
#ifndef NRF_SOC_H__
#define NRF_SOC_H__
#include <stdint.h>
#include "nrf.h"
#ifdef __cplusplus
extern "C" {
#endif
/**@brief Waits for an application event.
*
* An application event is either an application interrupt or a pended interrupt when the
* interrupt is disabled. When the interrupt is enabled it will be taken immediately since
* this function will wait in thread mode, then the execution will return in the application's
* main thread. When an interrupt is disabled and gets pended it will return to the application's
* thread main. The application must ensure that the pended flag is cleared using
* ::sd_nvic_ClearPendingIRQ in order to sleep using this function. This is only necessary for
* disabled interrupts, as the interrupt handler will clear the pending flag automatically for
* enabled interrupts.
*
* In order to wake up from disabled interrupts, the SEVONPEND flag has to be set in the Cortex-M0
* System Control Register (SCR). @sa CMSIS_SCB
*
* @note If an application interrupt has happened since the last time sd_app_evt_wait was
* called this function will return immediately and not go to sleep. This is to avoid race
* conditions that can occur when a flag is updated in the interrupt handler and processed
* in the main loop.
*
* @post An application interrupt has happened or a interrupt pending flag is set.
*
* @retval ::NRF_SUCCESS
*/
uint32_t sd_app_evt_wait(void);
#ifdef __cplusplus
}
#endif
#endif /* NRF_SOC_H__ */
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