/**************************************************************************//**
 * @file     sc.h
 * @version  V3.00
 * $Revision: 13 $
 * $Date: 15/08/11 10:26a $
 * @brief    M451 series Smartcard (SC) driver header file
 *
 * @note
 * Copyright (C) 2013~2015 Nuvoton Technology Corp. All rights reserved.
 *****************************************************************************/
#ifndef __SC_H__
#define __SC_H__

#ifdef __cplusplus
extern "C"
{
#endif


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

/** @addtogroup SC_Driver SC Driver
  @{
*/

/** @addtogroup SC_EXPORTED_CONSTANTS SC Exported Constants
  @{
*/
#define SC_INTERFACE_NUM        1                /*!< Smartcard interface numbers */ /* M451 series has only one SC interface */
#define SC_PIN_STATE_HIGH       1                /*!< Smartcard pin status high   */
#define SC_PIN_STATE_LOW        0                /*!< Smartcard pin status low    */
#define SC_PIN_STATE_IGNORE     0xFFFFFFFF       /*!< Ignore pin status           */
#define SC_CLK_ON               1                /*!< Smartcard clock on          */
#define SC_CLK_OFF              0                /*!< Smartcard clock off         */

#define SC_TMR_MODE_0                   (0ul << SC_TMRCTL0_OPMODE_Pos)     /*!<Timer Operation Mode 0, down count                                                      */
#define SC_TMR_MODE_1                   (1ul << SC_TMRCTL0_OPMODE_Pos)     /*!<Timer Operation Mode 1, down count, start after detect start bit                        */
#define SC_TMR_MODE_2                   (2ul << SC_TMRCTL0_OPMODE_Pos)     /*!<Timer Operation Mode 2, down count, start after receive start bit                       */
#define SC_TMR_MODE_3                   (3ul << SC_TMRCTL0_OPMODE_Pos)     /*!<Timer Operation Mode 3, down count, use for activation, only timer 0 support this mode  */
#define SC_TMR_MODE_4                   (4ul << SC_TMRCTL0_OPMODE_Pos)     /*!<Timer Operation Mode 4, down count with reload after timeout                            */
#define SC_TMR_MODE_5                   (5ul << SC_TMRCTL0_OPMODE_Pos)     /*!<Timer Operation Mode 5, down count, start after detect start bit, reload after timeout  */
#define SC_TMR_MODE_6                   (6ul << SC_TMRCTL0_OPMODE_Pos)     /*!<Timer Operation Mode 6, down count, start after receive start bit, reload after timeout */
#define SC_TMR_MODE_7                   (7ul << SC_TMRCTL0_OPMODE_Pos)     /*!<Timer Operation Mode 7, down count, start and reload after detect start bit             */
#define SC_TMR_MODE_8                   (8ul << SC_TMRCTL0_OPMODE_Pos)     /*!<Timer Operation Mode 8, up count                                                        */
#define SC_TMR_MODE_F                   (0xF << SC_TMRCTL0_OPMODE_Pos)     /*!<Timer Operation Mode 15, down count, reload after detect start bit                      */


/*@}*/ /* end of group SC_EXPORTED_CONSTANTS */


/** @addtogroup SC_EXPORTED_FUNCTIONS SC Exported Functions
  @{
*/

/**
  * @brief Enable smartcard interrupt.
  * @param[in] sc The pointer of smartcard module.
  * @param[in] u32Mask Interrupt mask to be enabled. A combination of
  *             - \ref SC_INTEN_ACERRIEN_Msk
  *             - \ref SC_INTEN_RXTOIF_Msk
  *             - \ref SC_INTEN_INITIEN_Msk
  *             - \ref SC_INTEN_CDIEN_Msk
  *             - \ref SC_INTEN_BGTIEN_Msk
  *             - \ref SC_INTEN_TMR2IEN_Msk
  *             - \ref SC_INTEN_TMR1IEN_Msk
  *             - \ref SC_INTEN_TMR0IEN_Msk
  *             - \ref SC_INTEN_TERRIEN_Msk
  *             - \ref SC_INTEN_TBEIEN_Msk
  *             - \ref SC_INTEN_RDAIEN_Msk
  * @return None
  * @details The macro is used to enable Auto-convention error interrupt, Receiver buffer time-out interrupt, Initial end interrupt,
  *          Card detect interrupt, Block guard time interrupt, Timer2 interrupt, Timer1 interrupt, Timer0 interrupt,
  *          Transfer error interrupt, Transmit buffer empty interrupt or Receive data reach trigger level interrupt.
  * \hideinitializer
  */
#define SC_ENABLE_INT(sc, u32Mask) ((sc)->INTEN |= (u32Mask))

/**
  * @brief Disable smartcard interrupt.
  * @param[in] sc The pointer of smartcard module.
  * @param[in] u32Mask Interrupt mask to be disabled. A combination of
  *             - \ref SC_INTEN_ACERRIEN_Msk
  *             - \ref SC_INTEN_RXTOIF_Msk
  *             - \ref SC_INTEN_INITIEN_Msk
  *             - \ref SC_INTEN_CDIEN_Msk
  *             - \ref SC_INTEN_BGTIEN_Msk
  *             - \ref SC_INTEN_TMR2IEN_Msk
  *             - \ref SC_INTEN_TMR1IEN_Msk
  *             - \ref SC_INTEN_TMR0IEN_Msk
  *             - \ref SC_INTEN_TERRIEN_Msk
  *             - \ref SC_INTEN_TBEIEN_Msk
  *             - \ref SC_INTEN_RDAIEN_Msk
  * @return None
  * @details The macro is used to disable Auto-convention error interrupt, Receiver buffer time-out interrupt, Initial end interrupt,
  *          Card detect interrupt, Block guard time interrupt, Timer2 interrupt, Timer1 interrupt, Timer0 interrupt,
  *          Transfer error interrupt, Transmit buffer empty interrupt or Receive data reach trigger level interrupt.
  * \hideinitializer
  */
#define SC_DISABLE_INT(sc, u32Mask) ((sc)->INTEN &= ~(u32Mask))

/**
  * @brief This macro set VCC pin state of smartcard interface.
  * @param[in] sc The pointer of smartcard module.
  * @param[in] u32State Pin state of VCC pin, valid parameters are:
  *                 \ref SC_PIN_STATE_HIGH    :Smartcard pin status high.
  *                 \ref SC_PIN_STATE_LOW     :Smartcard pin status low.
  * @return None
  * @details User can set PWREN (SC_PINCTL[0]) and PWRINV (SC_PINCTL[11])to decide SC_PWR pin is in high or low level.
  * \hideinitializer
  */
#define SC_SET_VCC_PIN(sc, u32State) \
    do {\
            while((sc)->PINCTL & SC_PINCTL_SYNC_Msk);\
            if(u32State)\
                (sc)->PINCTL |= SC_PINCTL_PWREN_Msk;\
            else\
                (sc)->PINCTL &= ~SC_PINCTL_PWREN_Msk;\
    }while(0)


/**
  * @brief Set CLK output status.
  * @param[in] sc The pointer of smartcard module.
  * @param[in] u32OnOff Clock on or off for selected smartcard module, valid values are:
  *                 \ref SC_CLK_ON    :Smartcard clock on.
  *                 \ref SC_CLK_OFF   :Smartcard clock off.
  * @return None
  * @details User can set CLKKEEP (SC_PINCTL[6]) to decide SC_CLK pin always keeps free running or not.
  * \hideinitializer
  */
#define SC_SET_CLK_PIN(sc, u32OnOff)\
    do {\
            while((sc)->PINCTL & SC_PINCTL_SYNC_Msk);\
            if(u32OnOff)\
                (sc)->PINCTL |= SC_PINCTL_CLKKEEP_Msk;\
            else\
                (sc)->PINCTL &= ~(SC_PINCTL_CLKKEEP_Msk);\
    }while(0)

/**
  * @brief Set I/O pin state.
  * @param[in] sc The pointer of smartcard module.
  * @param[in] u32State Pin state of I/O pin, valid parameters are:
  *                 \ref SC_PIN_STATE_HIGH    :Smartcard pin status high.
  *                 \ref SC_PIN_STATE_LOW     :Smartcard pin status low.
  * @return None
  * @details User can set SCDOUT(SC_PINCTL[9]) to decide SCDOUT pin to high or low.
  * \hideinitializer
  */
#define SC_SET_IO_PIN(sc, u32State)\
    do {\
            while((sc)->PINCTL & SC_PINCTL_SYNC_Msk);\
            if(u32State)\
                (sc)->PINCTL |= SC_PINCTL_SCDOUT_Msk;\
            else\
                (sc)->PINCTL &= ~SC_PINCTL_SCDOUT_Msk;\
    }while(0)

/**
  * @brief Set RST pin state.
  * @param[in] sc The pointer of smartcard module.
  * @param[in] u32State Pin state of RST pin, valid parameters are:
  *                 \ref SC_PIN_STATE_HIGH    :Smartcard pin status high.
  *                 \ref SC_PIN_STATE_LOW     :Smartcard pin status low.
  * @return None
  * @details User can set SCRST(SC_PINCTL[1]) to decide SCRST pin to high or low.
  * \hideinitializer
  */
#define SC_SET_RST_PIN(sc, u32State)\
    do {\
            while((sc)->PINCTL & SC_PINCTL_SYNC_Msk);\
            if(u32State)\
                (sc)->PINCTL |= SC_PINCTL_SCRST_Msk;\
            else\
                (sc)->PINCTL &= ~SC_PINCTL_SCRST_Msk;\
    }while(0)

/**
  * @brief Read one byte from smartcard module receive FIFO.
  * @param[in] sc The pointer of smartcard module.
  * @return One byte read from receive FIFO.
  * @details By reading DAT register, the SC will return an 8-bit received data.
  * \hideinitializer
  */
#define SC_READ(sc) ((char)((sc)->DAT))

/**
  * @brief Write one byte to smartcard module transmit FIFO.
  * @param[in] sc The pointer of smartcard module.
  * @param[in] u8Data Data to write to transmit FIFO.
  * @return None
  * @details By writing data to DAT register, the SC will send out an 8-bit data.
  * \hideinitializer
  */
#define SC_WRITE(sc, u8Data) ((sc)->DAT = (u8Data))

/**
  * @brief This macro set smartcard stop bit length.
  * @param[in] sc The pointer of smartcard module.
  * @param[in] u32Len Stop bit length, ether 1 or 2.
  * @return None
  * @details Stop bit length must be 1 for T = 1 protocol and 2 for T = 0 protocol.
  * \hideinitializer
  */
#define SC_SET_STOP_BIT_LEN(sc, u32Len) ((sc)->CTL = ((sc)->CTL & ~SC_CTL_NSB_Msk) | ((u32Len) == 1 ? SC_CTL_NSB_Msk : 0))

/**
  * @brief Enable/Disable Tx error retry, and set Tx error retry count.
  * @param[in] sc The pointer of smartcard module.
  * @param[in] u32Count The number of times of Tx error retry count, between 0~8. 0 means disable Tx error retry.
  * @return None
  * @details This macro enable/disable transmitter retry function when parity error has occurred, and set error retry count.
  */
__STATIC_INLINE void SC_SetTxRetry(SC_T *sc, unsigned int u32Count)
{
    while((sc)->CTL & SC_CTL_SYNC_Msk);
    if(u32Count == 0) {       // disable Tx error retry
        (sc)->CTL &= ~(SC_CTL_TXRTY_Msk | SC_CTL_TXRTYEN_Msk);
    } else {
        (sc)->CTL = ((sc)->CTL & ~SC_CTL_TXRTY_Msk) | ((u32Count - 1) << SC_CTL_TXRTY_Pos) | SC_CTL_TXRTYEN_Msk;
    }
}

/**
  * @brief Enable/Disable Rx error retry, and set Rx error retry count.
  * @param[in] sc The pointer of smartcard module.
  * @param[in] u32Count The number of times of Rx error retry count, between 0~8. 0 means disable Rx error retry.
  * @return None
  * @details This macro enable/disable receiver retry function when parity error has occurred, and set error retry count.
  */
__STATIC_INLINE void  SC_SetRxRetry(SC_T *sc, unsigned int u32Count)
{
    while((sc)->CTL & SC_CTL_SYNC_Msk);
    if(u32Count == 0) {       // disable Rx error retry
        (sc)->CTL &= ~(SC_CTL_RXRTY_Msk | SC_CTL_RXRTYEN_Msk);
    } else {
        (sc)->CTL = ((sc)->CTL & ~SC_CTL_RXRTY_Msk) | ((u32Count - 1) << SC_CTL_RXRTY_Pos) | SC_CTL_RXRTYEN_Msk;
    }
}


unsigned int SC_IsCardInserted(SC_T *sc);
void SC_ClearFIFO(SC_T *sc);
void SC_Close(SC_T *sc);
void SC_Open(SC_T *sc, unsigned int u32CardDet, unsigned int u32PWR);
void SC_ResetReader(SC_T *sc);
void SC_SetBlockGuardTime(SC_T *sc, unsigned int u32BGT);
void SC_SetCharGuardTime(SC_T *sc, unsigned int u32CGT);
void SC_StopAllTimer(SC_T *sc);
void SC_StartTimer(SC_T *sc, unsigned int u32TimerNum, unsigned int u32Mode, unsigned int u32ETUCount);
void SC_StopTimer(SC_T *sc, unsigned int u32TimerNum);


/*@}*/ /* end of group SC_EXPORTED_FUNCTIONS */

/*@}*/ /* end of group SC_Driver */

/*@}*/ /* end of group Standard_Driver */

#ifdef __cplusplus
}
#endif

#endif //__SC_H__

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

