/**************************************************************************//**
 * @file     timer.h
 * @version  V3.00
 * $Revision: 4 $
 * $Date: 15/07/24 5:39p $
 * @brief    Timer driver header file
 *
 * @note
 * SPDX-License-Identifier: Apache-2.0
 * Copyright (C) 2013~2015 Nuvoton Technology Corp. All rights reserved.
 *****************************************************************************/
#ifndef __TIMER_H__
#define __TIMER_H__

#ifdef __cplusplus
extern "C"
{
#endif


/** @addtogroup Standard_Driver Standard Driver
  @{
*/

/** @addtogroup TIMER_Driver TIMER Driver
  @{
*/

/** @addtogroup TIMER_EXPORTED_CONSTANTS TIMER Exported Constants
  @{
*/

#define TIMER_ONESHOT_MODE                  (0UL << TIMER_TCSR_MODE_Pos)            /*!< Timer working in one-shot mode */
#define TIMER_PERIODIC_MODE                 (1UL << TIMER_TCSR_MODE_Pos)            /*!< Timer working in periodic mode */
#define TIMER_TOGGLE_MODE                   (2UL << TIMER_TCSR_MODE_Pos)            /*!< Timer working in toggle-output mode */
#define TIMER_CONTINUOUS_MODE               (3UL << TIMER_TCSR_MODE_Pos)            /*!< Timer working in continuous counting mode */

/*@}*/ /* end of group TIMER_EXPORTED_CONSTANTS */


/** @addtogroup TIMER_EXPORTED_FUNCTIONS TIMER Exported Functions
  @{
*/

/**
  * @brief      Set Timer Compare Value
  *
  * @param[in]  timer       The pointer of the specified Timer module. It could be TIMER0, TIMER1, TIMER2, TIMER3.
  * @param[in]  u32Value    Timer compare value. Valid values are between 2 to 0xFFFFFF.
  *
  * @return     None
  *
  * @details    This macro is used to set new Timer compared value.
  */
#define TIMER_SET_CMP_VALUE(timer, u32Value)        ((timer)->TCMPR = (u32Value))

/**
  * @brief      Set Timer Prescale Value
  *
  * @param[in]  timer       The pointer of the specified Timer module. It could be TIMER0, TIMER1, TIMER2, TIMER3.
  * @param[in]  u32Value    Timer prescale value. Valid values are between 0 to 0xFF.
  *
  * @return     None
  *
  * @details    This macro is used to set new Timer prescale value.
  * @note       Clock input is divided by (prescale + 1) before it is fed into timer.
  */
#define TIMER_SET_PRESCALE_VALUE(timer, u32Value)   ((timer)->TCSR = ((timer)->TCSR & ~TIMER_TCSR_PRESCALE_Msk) | (u32Value))

/**
  * @brief      Check specify Timer Status
  *
  * @param[in]  timer       The pointer of the specified Timer module. It could be TIMER0, TIMER1, TIMER2, TIMER3.
  *
  * @retval     0   Timer 24-bit up counter is inactive
  * @retval     1   Timer 24-bit up counter is active
  *
  * @details    This macro is used to check if specify Timer channel is inactive or active.
  */
#define TIMER_IS_ACTIVE(timer)                      ((timer)->TCSR & TIMER_TCSR_CACT_Msk ? 1 : 0)

/**
  * @brief      Start Timer Counting
  *
  * @param[in]  timer       The pointer of the specified Timer module. It could be TIMER0, TIMER1, TIMER2, TIMER3.
  *
  * @return     None
  *
  * @details    This function is used to start Timer counting.
  */
static __INLINE void TIMER_Start(TIMER_T *timer)
{
    timer->TCSR |= TIMER_TCSR_CEN_Msk;
}

/**
  * @brief      Stop Timer Counting
  *
  * @param[in]  timer       The pointer of the specified Timer module. It could be TIMER0, TIMER1, TIMER2, TIMER3.
  *
  * @return     None
  *
  * @details    This function is used to stop/suspend Timer counting.
  */
static __INLINE void TIMER_Stop(TIMER_T *timer)
{
    timer->TCSR &= ~TIMER_TCSR_CEN_Msk;
}

/**
  * @brief      Enable Timer Time-out Interrupt
  *
  * @param[in]  timer       The pointer of the specified Timer module. It could be TIMER0, TIMER1, TIMER2, TIMER3.
  *
  * @return     None
  *
  * @details    This function is used to enable the Timer time-out interrupt function.
  */
static __INLINE void TIMER_EnableInt(TIMER_T *timer)
{
    timer->TCSR |= TIMER_TCSR_IE_Msk;
}

/**
  * @brief      Disable Timer Time-out Interrupt
  *
  * @param[in]  timer       The pointer of the specified Timer module. It could be TIMER0, TIMER1, TIMER2, TIMER3.
  *
  * @return     None
  *
  * @details    This function is used to disable the Timer time-out interrupt function.
  */
static __INLINE void TIMER_DisableInt(TIMER_T *timer)
{
    timer->TCSR &= ~TIMER_TCSR_IE_Msk;
}

/**
  * @brief      Get Timer Time-out Interrupt Flag
  *
  * @param[in]  timer   The pointer of the specified Timer module. It could be TIMER0, TIMER1, TIMER2, TIMER3.
  *
  * @retval     0   Timer time-out interrupt did not occur
  * @retval     1   Timer time-out interrupt occurred
  *
  * @details    This function indicates Timer time-out interrupt occurred or not.
  */
static __INLINE uint32_t TIMER_GetIntFlag(TIMER_T *timer)
{
    return (timer->TISR & TIMER_TISR_TIF_Msk ? 1 : 0);
}

/**
  * @brief      Clear Timer time-out Interrupt Flag
  *
  * @param[in]  timer       The pointer of the specified Timer module. It could be TIMER0, TIMER1, TIMER2, TIMER3.
  *
  * @return     None
  *
  * @details    This function clears Timer time-out interrupt flag.
  */
static __INLINE void TIMER_ClearIntFlag(TIMER_T *timer)
{
    timer->TISR = TIMER_TISR_TIF_Msk;
}

/**
  * @brief      Get Counter value
  *
  * @param[in]  timer       The pointer of the specified Timer module. It could be TIMER0, TIMER1, TIMER2, TIMER3.
  *
  * @return     Counter Value
  *
  * @details    This function reports the current 24-bit timer counter value.
  */
static __INLINE uint32_t TIMER_GetCounter(TIMER_T *timer)
{
    return timer->TDR;
}

uint32_t TIMER_Open(TIMER_T *timer, uint32_t u32Mode, uint32_t u32Freq);
void TIMER_Close(TIMER_T *timer);
void TIMER_Delay(TIMER_T *timer, uint32_t u32Usec);
void TIMER_EnableEventCounter(TIMER_T *timer, uint32_t u32Edge);
void TIMER_DisableEventCounter(TIMER_T *timer);
uint32_t TIMER_GetModuleClock(TIMER_T *timer);

/*@}*/ /* end of group TIMER_EXPORTED_FUNCTIONS */

/*@}*/ /* end of group TIMER_Driver */

/*@}*/ /* end of group Device_Driver */

#ifdef __cplusplus
}
#endif

#endif //__TIMER_H__

/*** (C) COPYRIGHT 2013~2015 Nuvoton Technology Corp. ***/
