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/*
* Copyright (C) 2013 Freie Universität Berlin
*
* This file is subject to the terms and conditions of the GNU Lesser
* General Public License v2.1. See the file LICENSE in the top level
* directory for more details.
*/
/**
* @defgroup core_lpm Power Management
* @ingroup core
* @brief The kernels power management interface
* @{
*
* @file
* @brief Power management interface
*
* This interface needs to be implemented for each platform.
*
* @author Freie Universität Berlin, Computer Systems & Telematics
*/
#ifndef LPM_H_
#define LPM_H_
#include "arch/lpm_arch.h"
#ifdef __cplusplus
extern "C" {
#endif
/**
* @brief Initialization of power management (including clock setup)
*
* This function is invoked once during boot.
*/
void lpm_init(void);
/**
* @brief Switches the MCU to a new power mode
* @param[in] target Target power mode
* @return The previous power mode
*/
enum lpm_mode lpm_set(enum lpm_mode target);
/**
* @brief Switches the MCU to active power mode LPM_ON
*/
void lpm_awake(void);
/**
* @brief Begin to switch MCU to active power mode.
*/
void lpm_begin_awake(void);
/**
* @brief Finish to switch MCU to active power mode.
*/
void lpm_end_awake(void);
/**
* @brief Returns the current power mode
* @return Current power mode
*/
enum lpm_mode lpm_get(void);
/**
* @brief LPM-internal variable
*/
extern volatile int lpm_prevent_sleep;
#ifdef __cplusplus
}
#endif
#endif /* __LPM_H_ */
/** @} */
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