pit.h

/******************************************************************************
* @brief    Periodic Interrupt ETMer (PIT) driver head file. 
*
******************************************************************************/
#ifndef PIT_H_
#define PIT_H_
#include"common.h"
#ifdef __cplusplus
extern "C" {
#endif
/******************************************************************************
* Includes
******************************************************************************/

/******************************************************************************
* Constants
******************************************************************************/

/******************************************************************************
* PIT channel number list
*
*//*! @addtogroup pit_channelnumber
* @{
*******************************************************************************/
enum
{
    PIT_CHANNEL0 = 0,       /*!< PIT channel 0 */
    PIT_CHANNEL1            /*!< PIT channel 1 */
};

/*! @} End of pit_channelnumber                                               */

/******************************************************************************
* Macros
******************************************************************************/

/******************************************************************************
* Types
******************************************************************************/

/*
 * Callback type
 */

/******************************************************************************
* PIT callback function declaration
*
*//*! @addtogroup pit_callback
* @{
*******************************************************************************/
typedef void (*PIT_CallbackType)(void);             /*!< PIT callback type */

/*! @} End of pit_callback                                                    */

/* PIT configuration structure 
 */  
/*!
 * @brief PIT configuration type.
 *
 */
typedef struct
{   
    uint8_t bFreeze         : 1;    /*!< 1: stop in debug mode, 0: run in debug mode */
    uint8_t bModuleDis      : 1;    /*!< 1: PIT module is disable, 0: PIT module is enable */    
    uint8_t bReserved0      : 1;    /*!< reserved bit */ 
    uint8_t bReserved1      : 5;    /*!< reserved bit */ 
    uint8_t bETMerEn        : 1;    /*!< 1: channel ETMer is enable, 0: channel ETMer is disable */ 
    uint8_t bInterruptEn    : 1;    /*!< 1: channel ETMer interrupt is enable, 0: channel ETMer interrupt is disable */ 
    uint8_t bChainMode      : 1;    /*!< 1: chain mode is enable, 0: chain mode is disable */ 
    uint8_t bReserved2      : 5;    /*!< reserved bit */ 
    uint8_t bFlag           : 1;    /*!< 1: flag is set,and write 1 to clear flag, 0: no flag is set */
    uint8_t bReserved3      : 7;    /*!< reserved bit */   
    uint32_t u32LoadValue      ;    /*!< 32-bit channel load value */  
} PIT_ConfigType, *PIT_ConfigPtr; 


/******************************************************************************
* Global variables
******************************************************************************/


/*!
 * inline functions
 */

/******************************************************************************
* PIT API list
*
*//*! @addtogroup pit_api_list
* @{
*******************************************************************************/

/*****************************************************************************//*!
*
* @brief enable pit module.
*        
* @param   none
*
* @return none
*
* @ Pass/ Fail criteria: none
*****************************************************************************/
__STATIC_INLINE void PIT_Enable(void)
{

    PIT->MCR &= ~PIT_MCR_MDIS_MASK; 
    
}


/*****************************************************************************//*!
*
* @brief disable pit module.
*        
* @param   none
*
* @return none
*
* @ Pass/ Fail criteria: none
*****************************************************************************/
__STATIC_INLINE void PIT_Disable(void)
{

    PIT->MCR |= PIT_MCR_MDIS_MASK; 
}


/*****************************************************************************//*!
*
* @brief pit ETMers are stopped in debug mode.
*        
* @param  none
*
* @return none
*
* @ Pass/ Fail criteria: none
*****************************************************************************/
__STATIC_INLINE void PIT_SetDebugFreeze(void)
{

    PIT->MCR |= PIT_MCR_FRZ_MASK;
}


/*****************************************************************************//*!
*
* @brief pit ETMers are running in debug mode.
*        
* @param  none
*
* @return none
*
* @ Pass/ Fail criteria: none
*****************************************************************************/
__STATIC_INLINE void PIT_SetDebugOn(void)
{

    PIT->MCR &= ~PIT_MCR_FRZ_MASK;
}


/*****************************************************************************//*!
*
* @brief enable pit channel ETMer.
*        
* @param[in]   u8Channel.
*
* @return none
*
* @ Pass/ Fail criteria: none
*****************************************************************************/
__STATIC_INLINE void PIT_ChannelEnable(uint8_t u8Channel)

{

    PIT->CHANNEL[u8Channel].TCTRL |= PIT_TCTRL_TEN_MASK; 
}


/*****************************************************************************//*!
*
* @brief disable pit channel ETMer.
*        
* @param[in]   u8Channel.
*
* @return none
*
* @ Pass/ Fail criteria: none
*****************************************************************************/
__STATIC_INLINE void PIT_ChannelDisable(uint8_t u8Channel)
{

    PIT->CHANNEL[u8Channel].TCTRL &= ~PIT_TCTRL_TEN_MASK; 
}


/*****************************************************************************//*!
*
* @brief enable pit channel ETMer interrupt.
*        
* @param[in]  u8Channel.
*
* @return none
*
* @ Pass/ Fail criteria: none
*****************************************************************************/
__STATIC_INLINE void PIT_ChannelEnableInt(uint8_t u8Channel)

{

    PIT->CHANNEL[u8Channel].TCTRL |= PIT_TCTRL_TIE_MASK; 
}


/*****************************************************************************//*!
*
* @brief disable pit channel ETMer interrupt .
*        
* @param[in]   u8Channel.
*
* @return none
*
* @ Pass/ Fail criteria: none
*****************************************************************************/
__STATIC_INLINE void PIT_ChannelDisableInt(uint8_t u8Channel)

{

    PIT->CHANNEL[u8Channel].TCTRL &= ~PIT_TCTRL_TIE_MASK; 
}


/*****************************************************************************//*!
*
* @brief  enable pit channel ETMer chain mode.
*        
* @param[in]   u8Channel.
*
* @return none
*
* @ Pass/ Fail criteria: none
*****************************************************************************/
__STATIC_INLINE void PIT_ChannelEnableChain(uint8_t u8Channel)
{
    PIT->CHANNEL[u8Channel].TCTRL |= PIT_TCTRL_CHN_MASK;
}


/*****************************************************************************//*!
*
* @brief  disable pit channel ETMer chain mode.
*        
* @param[in]   u8Channel.
*
* @return none
*
* @ Pass/ Fail criteria: none
*****************************************************************************/
__STATIC_INLINE void PIT_ChannelDisableChain(uint8_t u8Channel)

{
    PIT->CHANNEL[u8Channel].TCTRL &= ~PIT_TCTRL_CHN_MASK;
}


/*****************************************************************************//*!
*
* @brief get pit channel ETMer interrrupt flag.
*        
* @param[in]   u8Channel.
*
* @return bflag.
*
* @ Pass/ Fail criteria: none

*****************************************************************************/
__STATIC_INLINE uint8_t PIT_ChannelGetFlags(uint8_t u8Channel)

{
    uint8_t bflag;  
    
    bflag = (PIT->CHANNEL[u8Channel].TFLG & PIT_TFLG_TIF_MASK);    
    
    return bflag;
    
}


/*****************************************************************************//*!
*
* @brief clear pit channel ETMer interrrupt flag.
*        
* @param[in] u8Channel
*
* @return none
*
* @ Pass/ Fail criteria: none
*****************************************************************************/
__STATIC_INLINE void PIT_ChannelClrFlags(uint8_t u8Channel)
{
    PIT->CHANNEL[u8Channel].TFLG |= PIT_TFLG_TIF_MASK;       
}


/******************************************************************************
* Global functions
******************************************************************************/
void PIT_Init(uint8_t u8Channel_No, PIT_ConfigType *pConfig);
void PIT_SetLoadVal(uint8_t u8Channel, uint32_t u32loadvalue);
void PIT_SetCallback(uint8_t u8Channel_No, PIT_CallbackType pfnCallback);
void PIT_DeInit(void);
/*! @} End of pit_api_list                                                   */

#ifdef __cplusplus
}
#endif
#endif /* PIT_H_ */