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/**************************************************************************//**
* @file PS2.h
* @version V0.10
* $Revision: 6 $
* $Date: 14/10/06 1:58p $
* @brief NUC472/NUC442 PS2 Driver Header File
*
* @note
* Copyright (C) 2013 Nuvoton Technology Corp. All rights reserved.
******************************************************************************/
#ifndef __PS2_H__
#define __PS2_H__
/*---------------------------------------------------------------------------------------------------------*/
/* Include related headers */
/*---------------------------------------------------------------------------------------------------------*/
#include "NUC472_442.h"
#ifdef __cplusplus
extern "C"
{
#endif
/** @addtogroup NUC472_442_Device_Driver NUC472/NUC442 Device Driver
@{
*/
/** @addtogroup NUC472_442_PS2_Driver PS2 Driver
@{
*/
/** @addtogroup NUC472_442_PS2_EXPORTED_FUNCTIONS PS2 Exported Functions
@{
*/
/**
* @brief This function use to set TX FIFO length.
*
* @param[in] u32Count TX FIFO length
*
* @return None
* \hideinitializer
*/
#define PS2_SET_TX_BYTE_CNT(u32Count) (PS2->CTL = (PS2->CTL & ~PS2_CTL_TXFDEPTH_Msk) \
| ((u32Count-1) << PS2_CTL_TXFDEPTH_Pos))
/**
* @brief This function use to get PS2 status.
*
* @param None
*
* @return PS2 status
* \hideinitializer
*/
#define PS2_GET_STATUS() (PS2->STATUS)
/**
* @brief This function use to clear PS2 status.
*
* @param[in] u32Mask Clear the specified status of Ps2 module:
* \ref PS2_STATUS_FRAMEERR_Msk , \ref PS2_STATUS_RXOV_Msk
*
* @return None
*/
#define PS2_CLR_STATUS(u32Mask) (PS2D->PS2STATUS = u32Mask)
/**
* @brief This function use to clear PS2 Tx FIFO.
*
* @param None
*
* @return None
* \hideinitializer
*/
__STATIC_INLINE void PS2_CLEAR_TX_FIFO(void)
{
PS2->CTL |= PS2_CTL_CLRFIFO_Msk;
PS2->CTL &= ~PS2_CTL_CLRFIFO_Msk;
}
/**
* @brief This function use to clear PS2 Rx interrupt.
*
* @param None
*
* @return None
* \hideinitializer
*/
#define PS2_CLR_RX_INT_FLAG() (PS2->INTSTS = PS2_INTSTS_RXIF_Msk)
/**
* @brief This function use to clear PS2 Tx interrupt.
*
* @param None
*
* @return None
* \hideinitializer
*/
#define PS2_CLR_TX_INT_FLAG() (PS2->INTSTS = PS2_INTSTS_TXIF_Msk)
/**
* @brief This function use to get PS2 interrupt.
*
* @param[in] u32IntFlag interrupt flag: \ref PS2_INTSTS_TXIF_Msk , \ref PS2_INTSTS_RXIF_Msk
*
* @return 1: interrupt occurs
* 0: interrupt not occurs
* \hideinitializer
*/
#define PS2_GET_INT_FLAG(u32IntFlag) ((PS2->INTSTS & u32IntFlag)?1:0)
/**
* @brief This function use to set PS2CLK and PS2DATA pins are controlled by hardware.
*
* @param None
*
* @return None
* \hideinitializer
*/
#define PS2_DISABLE_OVERRIDE() (PS2->CTL &= ~PS2_CTL_PS2EN_Msk)
/**
* @brief This function use to set PS2CLK and PS2DATA pins are controlled by software.
*
* @param None
*
* @return None
* \hideinitializer
*/
#define PS2_ENABLE_OVERRIDE() (PS2->CTL |= PS2_CTL_PS2EN_Msk)
/**
* @brief This function use to get indicates which data byte in transmit data shift register.
*
* @param None
*
* @return The indicates which data byte in transmit data shift register.
* \hideinitializer
*/
#define PS2_GET_TX_BYTE_INDEX() ((PS2->STATUS & PS2_STATUS_BYTEIDX_Msk) >> PS2_STATUS_BYTEIDX_Pos)
/**
* @brief This function use to set PS2DATA Pin low.
*
* @param None
*
* @return None.
* \hideinitializer
*/
#define PS2_SET_DATA_LOW() (PS2->CTL &= ~PS2_CTL_FPS2DAT_Msk)
/**
* @brief This function use to set PS2DATA Pin high.
*
* @param None
*
* @return None.
* \hideinitializer
*/
#define PS2_SET_DATA_HIGH() (PS2->CTL |= PS2_CTL_FPS2DAT_Msk)
/**
* @brief This function use to set PS2CLK Pin low.
*
* @param None
*
* @return None.
* \hideinitializer
*/
#define PS2_SET_CLK_LOW() (PS2->CTL &= ~PS2_CTL_FPS2CLK_Msk)
/**
* @brief This function use to set PS2CLK Pin high.
*
* @param None
*
* @return None.
* \hideinitializer
*/
#define PS2_SET_CLK_HIGH() (PS2->CTL |= PS2_CTL_FPS2CLK_Msk)
/**
* @brief If Parity error or Stop bit is Not Received Correctly, Acknowledge will Not be Sent to host at 12th clock.
*
* @param None
*
* @return None.
* \hideinitializer
*/
#define PS2_DISABLE_ACK_ALWAYS() (PS2->CTL |= PS2_CTL_ACK_Msk)
/**
* @brief Always sends acknowledge to host at 12th clock for host to device communication.
*
* @param None
*
* @return None.
* \hideinitializer
*/
#define PS2_ENABLE_ACK_ALWAYS() (PS2->CTL &= ~PS2_CTL_ACK_Msk)
/*---------------------------------------------------------------------------------------------------------*/
/* Define Function Prototypes */
/*---------------------------------------------------------------------------------------------------------*/
void PS2_Open(void);
void PS2_Close(void);
uint8_t PS2_Read(void);
int32_t PS2_Write(uint32_t *pu32Buf, uint32_t u32ByteCount);
void PS2_EnableInt(uint32_t u32Mask);
void PS2_DisableInt(uint32_t u32Mask);
/*@}*/ /* end of group NUC472_442_PS2_EXPORTED_FUNCTIONS */
/*@}*/ /* end of group NUC472_442_PS2_Driver */
/*@}*/ /* end of group NUC472_442_Device_Driver */
#ifdef __cplusplus
}
#endif
#endif //__PS2_H__
/*** (C) COPYRIGHT 2013 Nuvoton Technology Corp. ***/
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