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Utilities/timer/LICENSE.txt Normal file
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This software component is provided to you as part of a software package and
applicable license terms are in the Package_license file. If you received this
software component outside of a package or without applicable license terms,
the terms of the BSD-3-Clause license shall apply.
You may obtain a copy of the BSD-3-Clause at:
https://opensource.org/licenses/BSD-3-Clause

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/*!
* \file timer.c
*
* \brief Timer objects and scheduling management implementation
*
* \copyright Revised BSD License, see section \ref LICENSE.
*
* \code
* ______ _
* / _____) _ | |
* ( (____ _____ ____ _| |_ _____ ____| |__
* \____ \| ___ | (_ _) ___ |/ ___) _ \
* _____) ) ____| | | || |_| ____( (___| | | |
* (______/|_____)_|_|_| \__)_____)\____)_| |_|
* (C)2013-2017 Semtech
*
* \endcode
*
* \author Miguel Luis ( Semtech )
*
* \author Gregory Cristian ( Semtech )
*/
/******************************************************************************
* @file stm32_timer.c
* @author MCD Application Team
* @brief Time server utility
******************************************************************************
* @attention
*
* <h2><center>&copy; Copyright (c) 2019 STMicroelectronics.
* All rights reserved.</center></h2>
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "stm32_timer.h"
/** @addtogroup TIMER_SERVER
* @{
*/
/* Private macro -----------------------------------------------------------*/
/**
* @defgroup TIMER_SERVER_private_macro TIMER_SERVER private macros
* @{
*/
/**
* @brief macro definition to initialize a critical section.
*
*/
#ifndef UTIL_TIMER_INIT_CRITICAL_SECTION
#define UTIL_TIMER_INIT_CRITICAL_SECTION( )
#endif
/**
* @brief macro definition to enter a critical section.
*
*/
#ifndef UTIL_TIMER_ENTER_CRITICAL_SECTION
#define UTIL_TIMER_ENTER_CRITICAL_SECTION( ) UTILS_ENTER_CRITICAL_SECTION( )
#endif
/**
* @brief macro definition to exit a critical section.
*
*/
#ifndef UTIL_TIMER_EXIT_CRITICAL_SECTION
#define UTIL_TIMER_EXIT_CRITICAL_SECTION( ) UTILS_EXIT_CRITICAL_SECTION( )
#endif
/**
* @}
*/
/* Private variables -----------------------------------------------------------*/
/**
* @defgroup TIMER_SERVER_private_varaible TIMER_SERVER private variable
* @{
*/
/**
* @brief Timers list head pointer
*
*/
static UTIL_TIMER_Object_t *TimerListHead = NULL;
/**
* @}
*/
/**
* @defgroup TIMER_SERVER_private_function TIMER_SERVER private function
* @{
*/
void TimerInsertNewHeadTimer( UTIL_TIMER_Object_t *TimerObject );
void TimerInsertTimer( UTIL_TIMER_Object_t *TimerObject );
void TimerSetTimeout( UTIL_TIMER_Object_t *TimerObject );
bool TimerExists( UTIL_TIMER_Object_t *TimerObject );
/**
* @}
*/
/* Functions Definition ------------------------------------------------------*/
/**
* @addtogroup TIMER_SERVER_exported_function
* @{
*/
UTIL_TIMER_Status_t UTIL_TIMER_Init(void)
{
UTIL_TIMER_INIT_CRITICAL_SECTION();
TimerListHead = NULL;
return UTIL_TimerDriver.InitTimer();
}
UTIL_TIMER_Status_t UTIL_TIMER_DeInit(void)
{
return UTIL_TimerDriver.DeInitTimer();
}
UTIL_TIMER_Status_t UTIL_TIMER_Create( UTIL_TIMER_Object_t *TimerObject, uint32_t PeriodValue, UTIL_TIMER_Mode_t Mode, void ( *Callback )( void *), void *Argument)
{
if((TimerObject != NULL) && (Callback != NULL))
{
TimerObject->Timestamp = 0U;
TimerObject->ReloadValue = UTIL_TimerDriver.ms2Tick(PeriodValue);
TimerObject->IsPending = 0U;
TimerObject->IsRunning = 0U;
TimerObject->IsReloadStopped = 0U;
TimerObject->Callback = Callback;
TimerObject->argument = Argument;
TimerObject->Mode = Mode;
TimerObject->Next = NULL;
return UTIL_TIMER_OK;
}
else
{
return UTIL_TIMER_INVALID_PARAM;
}
}
UTIL_TIMER_Status_t UTIL_TIMER_Start( UTIL_TIMER_Object_t *TimerObject)
{
UTIL_TIMER_Status_t ret = UTIL_TIMER_OK;
uint32_t elapsedTime;
uint32_t minValue;
uint32_t ticks;
if(( TimerObject != NULL ) && ( TimerExists( TimerObject ) == false ) && (TimerObject->IsRunning == 0U))
{
UTIL_TIMER_ENTER_CRITICAL_SECTION();
ticks = TimerObject->ReloadValue;
minValue = UTIL_TimerDriver.GetMinimumTimeout( );
if( ticks < minValue )
{
ticks = minValue;
}
TimerObject->Timestamp = ticks;
TimerObject->IsPending = 0U;
TimerObject->IsRunning = 1U;
TimerObject->IsReloadStopped = 0U;
if( TimerListHead == NULL )
{
UTIL_TimerDriver.SetTimerContext();
TimerInsertNewHeadTimer( TimerObject ); /* insert a timeout at now+obj->Timestamp */
}
else
{
elapsedTime = UTIL_TimerDriver.GetTimerElapsedTime( );
TimerObject->Timestamp += elapsedTime;
if( TimerObject->Timestamp < TimerListHead->Timestamp )
{
TimerInsertNewHeadTimer( TimerObject);
}
else
{
TimerInsertTimer( TimerObject);
}
}
UTIL_TIMER_EXIT_CRITICAL_SECTION();
}
else
{
ret = UTIL_TIMER_INVALID_PARAM;
}
return ret;
}
UTIL_TIMER_Status_t UTIL_TIMER_StartWithPeriod( UTIL_TIMER_Object_t *TimerObject, uint32_t PeriodValue)
{
UTIL_TIMER_Status_t ret = UTIL_TIMER_OK;
if(NULL == TimerObject)
{
ret = UTIL_TIMER_INVALID_PARAM;
}
else
{
TimerObject->ReloadValue = UTIL_TimerDriver.ms2Tick(PeriodValue);
if(TimerExists(TimerObject))
{
(void)UTIL_TIMER_Stop(TimerObject);
}
ret = UTIL_TIMER_Start(TimerObject);
}
return ret;
}
UTIL_TIMER_Status_t UTIL_TIMER_Stop( UTIL_TIMER_Object_t *TimerObject )
{
UTIL_TIMER_Status_t ret = UTIL_TIMER_OK;
if (NULL != TimerObject)
{
UTIL_TIMER_ENTER_CRITICAL_SECTION();
UTIL_TIMER_Object_t* prev = TimerListHead;
UTIL_TIMER_Object_t* cur = TimerListHead;
TimerObject->IsReloadStopped = 1U;
/* List is empty or the Obj to stop does not exist */
if(NULL != TimerListHead)
{
TimerObject->IsRunning = 0U;
if( TimerListHead == TimerObject ) /* Stop the Head */
{
TimerListHead->IsPending = 0;
if( TimerListHead->Next != NULL )
{
TimerListHead = TimerListHead->Next;
TimerSetTimeout( TimerListHead );
}
else
{
UTIL_TimerDriver.StopTimerEvt( );
TimerListHead = NULL;
}
}
else /* Stop an object within the list */
{
while( cur != NULL )
{
if( cur == TimerObject )
{
if( cur->Next != NULL )
{
cur = cur->Next;
prev->Next = cur;
}
else
{
cur = NULL;
prev->Next = cur;
}
break;
}
else
{
prev = cur;
cur = cur->Next;
}
}
}
ret = UTIL_TIMER_OK;
}
UTIL_TIMER_EXIT_CRITICAL_SECTION();
}
else
{
ret = UTIL_TIMER_INVALID_PARAM;
}
return ret;
}
UTIL_TIMER_Status_t UTIL_TIMER_SetPeriod(UTIL_TIMER_Object_t *TimerObject, uint32_t NewPeriodValue)
{
UTIL_TIMER_Status_t ret = UTIL_TIMER_OK;
if(NULL == TimerObject)
{
ret = UTIL_TIMER_INVALID_PARAM;
}
else
{
TimerObject->ReloadValue = UTIL_TimerDriver.ms2Tick(NewPeriodValue);
if(TimerExists(TimerObject))
{
(void)UTIL_TIMER_Stop(TimerObject);
ret = UTIL_TIMER_Start(TimerObject);
}
}
return ret;
}
UTIL_TIMER_Status_t UTIL_TIMER_SetReloadMode(UTIL_TIMER_Object_t *TimerObject, UTIL_TIMER_Mode_t ReloadMode)
{
UTIL_TIMER_Status_t ret = UTIL_TIMER_OK;
if(NULL == TimerObject)
{
ret = UTIL_TIMER_INVALID_PARAM;
}
else
{
TimerObject->Mode = ReloadMode;
}
return ret;
}
UTIL_TIMER_Status_t UTIL_TIMER_GetRemainingTime(UTIL_TIMER_Object_t *TimerObject, uint32_t *ElapsedTime)
{
UTIL_TIMER_Status_t ret = UTIL_TIMER_OK;
if(TimerExists(TimerObject))
{
uint32_t time = UTIL_TimerDriver.GetTimerElapsedTime();
if (TimerObject->Timestamp < time )
{
*ElapsedTime = 0;
}
else
{
*ElapsedTime = TimerObject->Timestamp - time;
}
}
else
{
ret = UTIL_TIMER_INVALID_PARAM;
}
return ret;
}
uint32_t UTIL_TIMER_IsRunning( UTIL_TIMER_Object_t *TimerObject )
{
if( TimerObject != NULL )
{
return TimerObject->IsRunning;
}
else
{
return 0;
}
}
uint32_t UTIL_TIMER_GetFirstRemainingTime(void)
{
uint32_t NextTimer = 0xFFFFFFFFU;
if(TimerListHead != NULL)
{
(void)UTIL_TIMER_GetRemainingTime(TimerListHead, &NextTimer);
}
return NextTimer;
}
void UTIL_TIMER_IRQ_Handler( void )
{
UTIL_TIMER_Object_t* cur;
uint32_t old, now, DeltaContext;
UTIL_TIMER_ENTER_CRITICAL_SECTION();
old = UTIL_TimerDriver.GetTimerContext( );
now = UTIL_TimerDriver.SetTimerContext( );
DeltaContext = now - old; /*intentional wrap around */
/* update timeStamp based upon new Time Reference*/
/* because delta context should never exceed 2^32*/
if ( TimerListHead != NULL )
{
cur = TimerListHead;
do {
if (cur->Timestamp > DeltaContext)
{
cur->Timestamp -= DeltaContext;
}
else
{
cur->Timestamp = 0;
}
cur = cur->Next;
} while(cur != NULL);
}
/* Execute expired timer and update the list */
while ((TimerListHead != NULL) && ((TimerListHead->Timestamp == 0U) || (TimerListHead->Timestamp < UTIL_TimerDriver.GetTimerElapsedTime( ))))
{
cur = TimerListHead;
TimerListHead = TimerListHead->Next;
cur->IsPending = 0;
cur->IsRunning = 0;
cur->Callback(cur->argument);
if(( cur->Mode == UTIL_TIMER_PERIODIC) && (cur->IsReloadStopped == 0U))
{
(void)UTIL_TIMER_Start(cur);
}
}
/* start the next TimerListHead if it exists and it is not pending*/
if(( TimerListHead != NULL ) && (TimerListHead->IsPending == 0U))
{
TimerSetTimeout( TimerListHead );
}
UTIL_TIMER_EXIT_CRITICAL_SECTION();
}
UTIL_TIMER_Time_t UTIL_TIMER_GetCurrentTime(void)
{
uint32_t now = UTIL_TimerDriver.GetTimerValue( );
return UTIL_TimerDriver.Tick2ms(now);
}
UTIL_TIMER_Time_t UTIL_TIMER_GetElapsedTime(UTIL_TIMER_Time_t past )
{
uint32_t nowInTicks = UTIL_TimerDriver.GetTimerValue( );
uint32_t pastInTicks = UTIL_TimerDriver.ms2Tick( past );
/* intentional wrap around. Works Ok if tick duation below 1ms */
return UTIL_TimerDriver.Tick2ms( nowInTicks- pastInTicks );
}
/**
* @}
*/
/**************************** Private functions *******************************/
/**
* @addtogroup TIMER_SERVER_private_function
*
* @{
*/
/**
* @brief Check if the Object to be added is not already in the list
*
* @param TimerObject Structure containing the timer object parameters
* @retval 1 (the object is already in the list) or 0
*/
bool TimerExists( UTIL_TIMER_Object_t *TimerObject )
{
UTIL_TIMER_Object_t* cur = TimerListHead;
while( cur != NULL )
{
if( cur == TimerObject )
{
return true;
}
cur = cur->Next;
}
return false;
}
/**
* @brief Sets a timeout with the duration "timestamp"
*
* @param TimerObject Structure containing the timer object parameters
*/
void TimerSetTimeout( UTIL_TIMER_Object_t *TimerObject )
{
uint32_t minTicks= UTIL_TimerDriver.GetMinimumTimeout( );
TimerObject->IsPending = 1;
/* In case deadline too soon */
if(TimerObject->Timestamp < (UTIL_TimerDriver.GetTimerElapsedTime( ) + minTicks) )
{
TimerObject->Timestamp = UTIL_TimerDriver.GetTimerElapsedTime( ) + minTicks;
}
UTIL_TimerDriver.StartTimerEvt( TimerObject->Timestamp );
}
/**
* @brief Adds a timer to the list.
*
* @remark The list is automatically sorted. The list head always contains the
* next timer to expire.
*
* @param TimerObject Structure containing the timer object parameters
*/
void TimerInsertTimer( UTIL_TIMER_Object_t *TimerObject)
{
UTIL_TIMER_Object_t* cur = TimerListHead;
UTIL_TIMER_Object_t* next = TimerListHead->Next;
while (cur->Next != NULL )
{
if( TimerObject->Timestamp > next->Timestamp )
{
cur = next;
next = next->Next;
}
else
{
cur->Next = TimerObject;
TimerObject->Next = next;
return;
}
}
cur->Next = TimerObject;
TimerObject->Next = NULL;
}
/**
* @brief Adds or replace the head timer of the list.
*
* @param TimerObject Structure containing the timer object parameters
*
* @remark The list is automatically sorted. The list head always contains the
* next timer to expire.
*/
void TimerInsertNewHeadTimer( UTIL_TIMER_Object_t *TimerObject )
{
UTIL_TIMER_Object_t* cur = TimerListHead;
if( cur != NULL )
{
cur->IsPending = 0;
}
TimerObject->Next = cur;
TimerListHead = TimerObject;
TimerSetTimeout( TimerListHead );
}
/**
* @}
*/
/**
* @}
*/

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/*!
* \file timer.h
*
* \brief Timer objects and scheduling management implementation
*
* \copyright Revised BSD License, see section \ref LICENSE.
*
* \code
* ______ _
* / _____) _ | |
* ( (____ _____ ____ _| |_ _____ ____| |__
* \____ \| ___ | (_ _) ___ |/ ___) _ \
* _____) ) ____| | | || |_| ____( (___| | | |
* (______/|_____)_|_|_| \__)_____)\____)_| |_|
* (C)2013-2017 Semtech
*
* \endcode
*
* \author Miguel Luis ( Semtech )
*
* \author Gregory Cristian ( Semtech )
*/
/******************************************************************************
* @file stm32_timer.h
* @author MCD Application Team
* @brief This is the header of the timer server driver
******************************************************************************
* @attention
*
* <h2><center>&copy; Copyright (c) 2019 STMicroelectronics.
* All rights reserved.</center></h2>
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef UTIL_TIME_SERVER_H__
#define UTIL_TIME_SERVER_H__
#ifdef __cplusplus
extern "C" {
#endif
/** @defgroup TIMER_SERVER timer server
* @{
*/
/* Includes ------------------------------------------------------------------*/
#include <stdbool.h>
#include <stdint.h>
#include <stddef.h>
#include <cmsis_compiler.h>
#include "utilities_conf.h"
/* Exported types ------------------------------------------------------------*/
/** @defgroup TIMER_SERVER_exported_TypeDef TIMER_SERVER exported Typedef
* @{
*/
/**
* @brief Timer mode
*/
typedef enum {
UTIL_TIMER_ONESHOT = 0, /*!<One-shot timer. */
UTIL_TIMER_PERIODIC = 1 /*!<Periodic timer. */
} UTIL_TIMER_Mode_t;
/**
* @brief Timer status
*/
typedef enum {
UTIL_TIMER_OK = 0, /*!<Operation terminated successfully.*/
UTIL_TIMER_INVALID_PARAM = 1, /*!<Invalid Parameter. */
UTIL_TIMER_HW_ERROR = 2, /*!<Hardware Error. */
UTIL_TIMER_UNKNOWN_ERROR = 3 /*!<Unknown Error. */
} UTIL_TIMER_Status_t;
/**
* @brief Timer object description
*/
typedef struct TimerEvent_s
{
uint32_t Timestamp; /*!<Expiring timer value in ticks from TimerContext */
uint32_t ReloadValue; /*!<Reload Value when Timer is restarted */
uint8_t IsPending; /*!<Is the timer waiting for an event */
uint8_t IsRunning; /*!<Is the timer running */
uint8_t IsReloadStopped; /*!<Is the reload stopped */
UTIL_TIMER_Mode_t Mode; /*!<Timer type : one-shot/continuous */
void ( *Callback )( void *); /*!<callback function */
void *argument; /*!<callback argument */
struct TimerEvent_s *Next; /*!<Pointer to the next Timer object. */
} UTIL_TIMER_Object_t;
/**
* @brief Timer driver definition
*/
typedef struct
{
UTIL_TIMER_Status_t (* InitTimer )( void ); /*!< Initialisation of the low layer timer */
UTIL_TIMER_Status_t (* DeInitTimer )( void ); /*!< Un-Initialisation of the low layer timer */
UTIL_TIMER_Status_t (* StartTimerEvt )( uint32_t timeout ); /*!< Start the low layer timer */
UTIL_TIMER_Status_t (* StopTimerEvt )( void); /*!< Stop the low layer timer */
uint32_t (* SetTimerContext)( void ); /*!< Set the timer context */
uint32_t (* GetTimerContext)( void ); /*!< Get the timer context */
uint32_t (* GetTimerElapsedTime)( void ); /*!< Get elapsed time */
uint32_t (* GetTimerValue)( void ); /*!< Get timer value */
uint32_t (* GetMinimumTimeout)( void ); /*!< Get Minimum timeout */
uint32_t (* ms2Tick)( uint32_t timeMicroSec ); /*!< convert ms to tick */
uint32_t (* Tick2ms)( uint32_t tick ); /*!< convert tick into ms */
} UTIL_TIMER_Driver_s;
/**
* @brief Timer value on 32 bits
*/
typedef uint32_t UTIL_TIMER_Time_t;
/**
* @}
*/
/* Exported variables ------------------------------------------------------------*/
/** @defgroup TIMER_SERVER_exported_Variable TIMER_SERVER exported Variable
* @{
*/
/**
* @brief low layer interface to handle timing execution
*
* @remark This structure is defined and initialized in the specific platform
* timer implementation
*/
extern const UTIL_TIMER_Driver_s UTIL_TimerDriver;
/**
* @}
*/
/* Exported constants --------------------------------------------------------*/
/* External variables --------------------------------------------------------*/
/* Exported macros -----------------------------------------------------------*/
/* Exported functions ------------------------------------------------------- */
/** @defgroup TIMER_SERVER_exported_function TIMER_SERVER exported function
* @{
*/
/**
* @brief Initialize the timer server
*
* @retval Status based on @ref UTIL_TIMER_Status_t
*/
UTIL_TIMER_Status_t UTIL_TIMER_Init(void);
/**
* @brief Un-Initialize the timer server
*
* @retval Status based on @ref UTIL_TIMER_Status_t
*/
UTIL_TIMER_Status_t UTIL_TIMER_DeInit(void);
/**
* @brief Create the timer object
*
* @remark TimerSetValue function must be called before starting the timer.
* this function initializes timestamp and reload value at 0.
*
* @param TimerObject Structure containing the timer object parameters
* @param PeriodValue Period value of the timer in ms
* @param Mode @ref UTIL_TIMER_Mode_t
* @param Callback Function callback called at the end of the timeout
* @param Argument argument for the callback function
* @retval Status based on @ref UTIL_TIMER_Status_t
*/
UTIL_TIMER_Status_t UTIL_TIMER_Create( UTIL_TIMER_Object_t *TimerObject, uint32_t PeriodValue, UTIL_TIMER_Mode_t Mode, void ( *Callback )( void *) , void *Argument);
/**
* @brief Start and adds the timer object to the list of timer events
*
* @param TimerObject Structure containing the timer object parameters
* @retval Status based on @ref UTIL_TIMER_Status_t
*/
UTIL_TIMER_Status_t UTIL_TIMER_Start( UTIL_TIMER_Object_t *TimerObject );
/**
* @brief Start and adds the timer object to the list of timer events
*
* @param TimerObject Structure containing the timer object parameters
* @param PeriodValue period value of the timer
* @retval Status based on @ref UTIL_TIMER_Status_t
*/
UTIL_TIMER_Status_t UTIL_TIMER_StartWithPeriod( UTIL_TIMER_Object_t *TimerObject, uint32_t PeriodValue);
/**
* @brief Stop and removes the timer object from the list of timer events
*
* @param TimerObject Structure containing the timer object parameters
* @retval Status based on @ref UTIL_TIMER_Status_t
*/
UTIL_TIMER_Status_t UTIL_TIMER_Stop( UTIL_TIMER_Object_t *TimerObject );
/**
* @brief update the period and start the timer
*
* @param TimerObject Structure containing the timer object parameters
* @param NewPeriodValue new period value of the timer
* @retval Status based on @ref UTIL_TIMER_Status_t
*/
UTIL_TIMER_Status_t UTIL_TIMER_SetPeriod(UTIL_TIMER_Object_t *TimerObject, uint32_t NewPeriodValue);
/**
* @brief update the period and start the timer
*
* @param TimerObject Structure containing the timer object parameters
* @param ReloadMode new reload mode @ref UTIL_TIMER_Mode_t
* @retval Status based on @ref UTIL_TIMER_Status_t
*/
UTIL_TIMER_Status_t UTIL_TIMER_SetReloadMode(UTIL_TIMER_Object_t *TimerObject, UTIL_TIMER_Mode_t ReloadMode);
/**
* @brief get the remaining time before timer expiration
* *
* @param TimerObject Structure containing the timer object parameters
* @param Time time before expiration in ms
* @retval Status based on @ref UTIL_TIMER_Status_t
*/
UTIL_TIMER_Status_t UTIL_TIMER_GetRemainingTime(UTIL_TIMER_Object_t *TimerObject, uint32_t *Time);
/**
* @brief return timer state
*
* @param TimerObject Structure containing the timer object parameters
* @retval boolean value is returned 0 = false and 1 = true
*/
uint32_t UTIL_TIMER_IsRunning( UTIL_TIMER_Object_t *TimerObject );
/**
* @brief return the remaining time of the first timer in the chain list
*
* @retval return the time in ms, the value 0xFFFFFFFF means no timer running
*/
uint32_t UTIL_TIMER_GetFirstRemainingTime(void);
/**
* @brief return the current time
*
* @retval time value
*/
UTIL_TIMER_Time_t UTIL_TIMER_GetCurrentTime(void);
/**
* @brief return the elapsed time
*
* @param past a value returned by the function UTIL_TIMER_GetCurrentTime
* @retval elasped time value
*/
UTIL_TIMER_Time_t UTIL_TIMER_GetElapsedTime(UTIL_TIMER_Time_t past );
/**
* @brief Timer IRQ event handler
*
* @note Head Timer Object is automatically removed from the List
*
* @note e.g. it is not needed to stop it
*/
void UTIL_TIMER_IRQ_Handler( void );
/**
* @}
*/
/**
* @}
*/
#ifdef __cplusplus
}
#endif
#endif /* UTIL_TIME_SERVER_H__*/

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/*******************************************************************************
* File Name : stm32_timer_if.c
* Description : This file provides the ll driver for the time server
******************************************************************************
* @attention
*
* <h2><center>&copy; Copyright (c) 2019 STMicroelectronics.
* All rights reserved.</center></h2>
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include <math.h>
#include "stm32_timer_if.h"
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/* Exported variables ---------------------------------------------------------*/
const UTIL_TIMER_Driver_s UTIL_TimerDriver =
{
PPP_Init,
PPP_DeInit,
PPP_StartTimer,
PPP_StopTimer,
PPP_SetTimerContext,
PPP_GetTimerContext,
PPP_GetTimerElapsedTime,
PPP_GetTimerValue,
PPP_GetMinimumTimeout,
PPP_ms2Tick,
PPP_Tick2ms,
};
/*!
* @brief Initializes the PPP timer
* @note The timer is based on the PPP
* @param none
* @retval none
*/
UTIL_TIMER_Status_t PPP_Init( void )
{
return UTIL_TIMER_OK;
}
/*!
* @brief Initializes the PPP timer
* @note The timer is based on the PPP
* @param none
* @retval none
*/
UTIL_TIMER_Status_t PPP_DeInit( void )
{
return UTIL_TIMER_OK;
}
/*!
* @brief Set the timer
* @note The timer is set at now (read in this function) + timeout
* @param timeout Duration of the Timer ticks
*/
UTIL_TIMER_Status_t PPP_StartTimer( uint32_t timeout )
{
return UTIL_TIMER_OK;
}
/*!
* @brief Stop the timer
* @param none
* @retval none
*/
UTIL_TIMER_Status_t PPP_StopTimer( void )
{
return UTIL_TIMER_OK;
}
/*!
* @brief returns the wake up time in ticks
* @param none
* @retval wake up time in ticks
*/
uint32_t PPP_GetMinimumTimeout( void )
{
return ( 0 );
}
/*!
* @brief converts time in ms to time in ticks
* @param [IN] time in milliseconds
* @retval returns time in timer ticks
*/
uint32_t PPP_ms2Tick( uint32_t timeMicroSec )
{
return ( 0 );
}
/*!
* @brief converts time in ticks to time in ms
* @param [IN] time in timer ticks
* @retval returns time in milliseconds
*/
uint32_t PPP_Tick2ms( uint32_t tick )
{
return ( 0 );
}
/*!
* @brief Get the PPP timer elapsed time since the last timer was set
* @param none
* @retval PPP Elapsed time in ticks
*/
uint32_t PPP_GetTimerElapsedTime( void )
{
return ( 0 );
}
/*!
* @brief Get the PPP timer value
* @param none
* @retval PPP Timer value in ticks
*/
uint32_t PPP_GetTimerValue( void )
{
return ( 0 );
}
/*!
* @brief PPP IRQ Handler on the PPP timer
* @param none
* @retval none
*/
void PPP_IrqHandler ( void )
{
}
/*!
* @brief set Time Reference set also the sDate and sTime
* @param none
* @retval Timer Value
*/
uint32_t PPP_SetTimerContext( void )
{
return ( 0 );
}
/*!
* @brief Get the PPP timer Reference
* @param none
* @retval Timer Value in Ticks
*/
uint32_t PPP_GetTimerContext( void )
{
return ( 0 );
}

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Utilities/timer/stm32_timer_if_template.h Normal file
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@ -0,0 +1,120 @@
/**
******************************************************************************
* File Name : stm32_timer_if.h
* Description : This file provides the ll driver for the time server
******************************************************************************
* @attention
*
* <h2><center>&copy; Copyright (c) 2019 STMicroelectronics.
* All rights reserved.</center></h2>
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef STM32_TIMER_IF_H__
#define STM32_TIMER_IF_H__
#ifdef __cplusplus
extern "C" {
#endif
/* Includes ------------------------------------------------------------------*/
#include "stm32_timer.h"
/* Exported types ------------------------------------------------------------*/
/* Exported constants --------------------------------------------------------*/
/* External variables --------------------------------------------------------*/
/* Exported macros -----------------------------------------------------------*/
/* Exported functions ------------------------------------------------------- */
/*!
* @brief Initialize the PPP timer
* @note The timer is based on the PPP
*/
UTIL_TIMER_Status_t PPP_Init( void );
/*!
* @brief Un-initialize the PPP timer
* @note The timer is based on the PPP
*/
UTIL_TIMER_Status_t PPP_DeInit( void );
/*!
* @brief Start the timer
* @note The timer is set at Reference + timeout
* @param timeout Duration of the Timer in ticks
*/
UTIL_TIMER_Status_t PPP_StartTimer( uint32_t timeout );
/*!
* @brief Stop the timer
* @param none
* @retval none
*/
UTIL_TIMER_Status_t PPP_StopTimer( void );
/*!
* @brief Return the minimum timeout the PPP is able to handle
* @param none
* @retval minimum value for a timeout
*/
uint32_t PPP_GetMinimumTimeout( void );
/*!
* @brief Get the PPP timer elapsed time since the last Reference was set
* @retval PPP Elapsed time in ticks
*/
uint32_t PPP_GetTimerElapsedTime( void );
/*!
* @brief Get the PPP timer value
* @retval none
*/
uint32_t PPP_GetTimerValue( void );
/*!
* @brief Set the PPP timer Reference
* @retval Timer Reference Value in Ticks
*/
uint32_t PPP_SetTimerContext( void );
/*!
* @brief Get the PPP timer Reference
* @retval Timer Value in Ticks
*/
uint32_t PPP_GetTimerContext( void );
/*!
* @brief PPP IRQ Handler on the PPP timer
* @param none
* @retval none
*/
void PPP_IrqHandler ( void );
/*!
* @brief converts time in ms to time in ticks
* @param [IN] time in milliseconds
* @retval returns time in ticks
*/
uint32_t PPP_ms2Tick( uint32_t timeMicroSec );
/*!
* @brief converts time in ticks to time in ms
* @param [IN] time in ticks
* @retval returns time in milliseconds
*/
uint32_t PPP_Tick2ms( uint32_t tick );
#ifdef __cplusplus
}
#endif
#endif /* STM32_TIMER_IF_H__ */