File content as of revision 39:cb0e5a76ab15:

/*
 / _____)             _              | |
( (____  _____ ____ _| |_ _____  ____| |__
 \____ \| ___ |    (_   _) ___ |/ ___)  _ \
 _____) ) ____| | | || |_| ____( (___| | | |
(______/|_____)_|_|_| \__)_____)\____)_| |_|
    (C)2013 Semtech

Description: Timer objects and scheduling management

License: Revised BSD License, see LICENSE.TXT file include in the project

Maintainer: Miguel Luis and Gregory Cristian
*/
/******************************************************************************
  * @file    time_server.h
  * @author  MCD Application Team
  * @version V1.1.4
  * @date    08-January-2018
  * @brief   is the timer server driver
  ******************************************************************************
  * @attention
  *
  * <h2><center>&copy; Copyright (c) 2017 STMicroelectronics International N.V. 
  * All rights reserved.</center></h2>
  *
  * Redistribution and use in source and binary forms, with or without 
  * modification, are permitted, provided that the following conditions are met:
  *
  * 1. Redistribution of source code must retain the above copyright notice, 
  *    this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form 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 STMicroelectronics nor the names of other 
  *    contributors to this software may be used to endorse or promote products 
  *    derived from this software without specific written permission.
  * 4. This software, including modifications and/or derivative works of this 
  *    software, must execute solely and exclusively on microcontroller or
  *    microprocessor devices manufactured by or for STMicroelectronics.
  * 5. Redistribution and use of this software other than as permitted under 
  *    this license is void and will automatically terminate your rights under 
  *    this license. 
  *
  * THIS SOFTWARE IS PROVIDED BY STMICROELECTRONICS AND CONTRIBUTORS "AS IS" 
  * AND ANY EXPRESS, IMPLIED OR STATUTORY WARRANTIES, INCLUDING, BUT NOT 
  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A 
  * PARTICULAR PURPOSE AND NON-INFRINGEMENT OF THIRD PARTY INTELLECTUAL PROPERTY
  * RIGHTS ARE DISCLAIMED TO THE FULLEST EXTENT PERMITTED BY LAW. IN NO EVENT 
  * SHALL STMICROELECTRONICS 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.
  *
  ******************************************************************************
  */
  
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __TIME_SERVER_H__
#define __TIME_SERVER_H__

#ifdef __cplusplus
 extern "C" {
#endif

/* Includes ------------------------------------------------------------------*/
#include <stdbool.h>

/* Exported types ------------------------------------------------------------*/

/*!
 * \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
    bool IsRunning;             //! Is the timer currently running
    void ( *Callback )( void ); //! Timer IRQ callback function
    struct TimerEvent_s *Next;  //! Pointer to the next Timer object.
} TimerEvent_t;


/* Exported constants --------------------------------------------------------*/
/* External variables --------------------------------------------------------*/
/* Exported macros -----------------------------------------------------------*/
/* Exported functions ------------------------------------------------------- */ 

/*!
 * \brief Initializes the timer object
 *
 * \remark TimerSetValue function must be called before starting the timer.
 *         this function initializes timestamp and reload value at 0.
 *
 * \param [IN] obj          Structure containing the timer object parameters
 * \param [IN] callback     Function callback called at the end of the timeout
 */
void TimerInit(TimerEvent_t *obj, void ( *callback )( void ));

/*!
 * \brief Set timer new timeout value
 *
 * \param [IN] obj   Structure containing the timer object parameters
 * \param [IN] value New timer timeout value
 */
void TimerSetValue( TimerEvent_t *obj, uint32_t value );

/*!
 * \brief Starts and adds the timer object to the list of timer events
 *
 * \param [IN] obj Structure containing the timer object parameters
 */
void TimerStart(TimerEvent_t *obj);

/*!
 * \brief Stops and removes the timer object from the list of timer events
 *
 * \param [IN] obj Structure containing the timer object parameters
 */
void TimerStop(TimerEvent_t *obj);

/*!
 * \brief Resets the timer object
 *
 * \param [IN] obj Structure containing the timer object parameters
 */
void TimerReset( TimerEvent_t *obj );

/*!
 * \brief Read the current time
 *
 * \retval returns current time in ms
 */
uint32_t TimerGetCurrentTime( void );

/*!
 * \brief Return the Time elapsed since a fix moment in Time
 *
 * \param [IN] savedTime    fix moment in Time
 * \retval time             returns elapsed time in ms
 */
uint32_t TimerGetElapsedTime(uint32_t savedTime);

#ifdef __cplusplus
}
#endif

#endif /* __TIME_SERVER_H__*/

/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/