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/**
******************************************************************************
* @file stm32_lpm.c
* @author MCD Application Team
* @brief Low Power Manager
******************************************************************************
* @attention
*
* <h2><center>© Copyright (c) 2019 STMicroelectronics.
* All rights reserved.</center></h2>
*
* This software component is licensed by ST under BSD 3-Clause license,
* the "License"; You may not use this file except in compliance with the
* License. You may obtain a copy of the License at:
* opensource.org/licenses/BSD-3-Clause
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "stm32_lpm.h"
#include "utilities_conf.h"
/* Private typedef -----------------------------------------------------------*/
/* Private macros ------------------------------------------------------------*/
#define UTIL_LPM_NO_BIT_SET (0)
#ifndef UTIL_LPM_INIT_CRITICAL_SECTION
#define UTIL_LPM_INIT_CRITICAL_SECTION( )
#endif
#ifndef UTIL_LPM_ENTER_CRITICAL_SECTION
#define UTIL_LPM_ENTER_CRITICAL_SECTION( ) UTILS_ENTER_CRITICAL_SECTION( )
#endif
#ifndef UTIL_LPM_EXIT_CRITICAL_SECTION
#define UTIL_LPM_EXIT_CRITICAL_SECTION( ) UTILS_EXIT_CRITICAL_SECTION( )
#endif
/* Private function prototypes -----------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private typedef -----------------------------------------------------------*/
/* Private defines -----------------------------------------------------------*/
/* Private macros ------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
static UTIL_LPM_bm_t StopModeDisable = UTIL_LPM_NO_BIT_SET;
static UTIL_LPM_bm_t OffModeDisable = UTIL_LPM_NO_BIT_SET;
/* Global variables ----------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/* Functions Definition ------------------------------------------------------*/
void UTIL_LPM_Init( void )
{
StopModeDisable = UTIL_LPM_NO_BIT_SET;
OffModeDisable = UTIL_LPM_NO_BIT_SET;
UTIL_LPM_INIT_CRITICAL_SECTION( );
}
void UTIL_LPM_DeInit( void )
{
}
void UTIL_LPM_SetStopMode( UTIL_LPM_bm_t lpm_id_bm, UTIL_LPM_State_t state )
{
UTIL_LPM_ENTER_CRITICAL_SECTION( );
switch( state )
{
case UTIL_LPM_DISABLE:
{
StopModeDisable |= lpm_id_bm;
break;
}
case UTIL_LPM_ENABLE:
{
StopModeDisable &= ( ~lpm_id_bm );
break;
}
default:
break;
}
UTIL_LPM_EXIT_CRITICAL_SECTION( );
}
void UTIL_LPM_SetOffMode( UTIL_LPM_bm_t lpm_id_bm, UTIL_LPM_State_t state )
{
UTIL_LPM_ENTER_CRITICAL_SECTION( );
switch(state)
{
case UTIL_LPM_DISABLE:
{
OffModeDisable |= lpm_id_bm;
break;
}
case UTIL_LPM_ENABLE:
{
OffModeDisable &= ( ~lpm_id_bm );
break;
}
default:
break;
}
UTIL_LPM_EXIT_CRITICAL_SECTION( );
}
UTIL_LPM_Mode_t UTIL_LPM_GetMode( void )
{
UTIL_LPM_Mode_t mode_selected;
UTIL_LPM_ENTER_CRITICAL_SECTION( );
if( StopModeDisable != UTIL_LPM_NO_BIT_SET )
{
/**
* At least one user disallows Stop Mode
*/
mode_selected = UTIL_LPM_SLEEPMODE;
}
else
{
if( OffModeDisable != UTIL_LPM_NO_BIT_SET )
{
/**
* At least one user disallows Off Mode
*/
mode_selected = UTIL_LPM_STOPMODE;
}
else
{
mode_selected = UTIL_LPM_OFFMODE;
}
}
UTIL_LPM_EXIT_CRITICAL_SECTION( );
return mode_selected;
}
void UTIL_LPM_EnterLowPower( void )
{
UTIL_LPM_ENTER_CRITICAL_SECTION( );
if( StopModeDisable != UTIL_LPM_NO_BIT_SET )
{
/**
* At least one user disallows Stop Mode
* SLEEP mode is required
*/
UTIL_PowerDriver.EnterSleepMode( );
UTIL_PowerDriver.ExitSleepMode( );
}
else
{
if( OffModeDisable != UTIL_LPM_NO_BIT_SET )
{
/**
* At least one user disallows Off Mode
* STOP mode is required
*/
UTIL_PowerDriver.EnterStopMode( );
UTIL_PowerDriver.ExitStopMode( );
}
else
{
/**
* OFF mode is required
*/
UTIL_PowerDriver.EnterOffMode( );
UTIL_PowerDriver.ExitOffMode( );
}
}
UTIL_LPM_EXIT_CRITICAL_SECTION( );
}
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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