text: /**************************************************************************//**
   * @file     pdma.h
   * @version  V1.00
   * $Revision: 16 $
   * $Date: 17/01/09 2:30p $
   * @brief    M451 series PDMA driver header file
   *
   * @note
   * SPDX-License-Identifier: Apache-2.0
   * Copyright (C) 2014~2015 Nuvoton Technology Corp. All rights reserved.
   *****************************************************************************/
  #ifndef __PDMA_H__
  #define __PDMA_H__
  
  #ifdef __cplusplus
  extern "C"
  {
  #endif
  
  
  /** @addtogroup Standard_Driver Standard Driver
    @{
  */
  
  /** @addtogroup PDMA_Driver PDMA Driver
    @{
  */
  
  /** @addtogroup PDMA_EXPORTED_CONSTANTS PDMA Exported Constants
    @{
  */
  #define PDMA_CH_MAX    12UL   /*!< Specify Maximum Channels of PDMA  \hideinitializer */
  
  /*---------------------------------------------------------------------------------------------------------*/
  /*  Operation Mode Constant Definitions                                                                    */
  /*---------------------------------------------------------------------------------------------------------*/
  #define PDMA_OP_STOP        0x00000000UL            /*!<DMA Stop Mode  \hideinitializer */
  #define PDMA_OP_BASIC       0x00000001UL            /*!<DMA Basic Mode  \hideinitializer */
  #define PDMA_OP_SCATTER     0x00000002UL            /*!<DMA Scatter-gather Mode  \hideinitializer */
  
  /*---------------------------------------------------------------------------------------------------------*/
  /*  Data Width Constant Definitions                                                                        */
  /*---------------------------------------------------------------------------------------------------------*/
  #define PDMA_WIDTH_8        0x00000000UL            /*!<DMA Transfer Width 8-bit  \hideinitializer */
  #define PDMA_WIDTH_16       0x00001000UL            /*!<DMA Transfer Width 16-bit  \hideinitializer */
  #define PDMA_WIDTH_32       0x00002000UL            /*!<DMA Transfer Width 32-bit  \hideinitializer */
  
  /*---------------------------------------------------------------------------------------------------------*/
  /*  Address Attribute Constant Definitions                                                                 */
  /*---------------------------------------------------------------------------------------------------------*/
  #define PDMA_SAR_INC        0x00000000UL            /*!<DMA SAR increment  \hideinitializer */
  #define PDMA_SAR_FIX        0x00000300UL            /*!<DMA SAR fix address  \hideinitializer */
  #define PDMA_DAR_INC        0x00000000UL            /*!<DMA DAR increment  \hideinitializer */
  #define PDMA_DAR_FIX        0x00000C00UL            /*!<DMA DAR fix address  \hideinitializer */
  
  /*---------------------------------------------------------------------------------------------------------*/
  /*  Burst Mode Constant Definitions                                                                        */
  /*---------------------------------------------------------------------------------------------------------*/
  #define PDMA_REQ_SINGLE     0x00000004UL            /*!<DMA Single Request  \hideinitializer */
  #define PDMA_REQ_BURST      0x00000000UL            /*!<DMA Burst Request  \hideinitializer */
  
  #define PDMA_BURST_128      0x00000000UL            /*!<DMA Burst 128 Transfers  \hideinitializer */
  #define PDMA_BURST_64       0x00000010UL            /*!<DMA Burst 64 Transfers  \hideinitializer */
  #define PDMA_BURST_32       0x00000020UL            /*!<DMA Burst 32 Transfers  \hideinitializer */
  #define PDMA_BURST_16       0x00000030UL            /*!<DMA Burst 16 Transfers  \hideinitializer */
  #define PDMA_BURST_8        0x00000040UL            /*!<DMA Burst 8 Transfers  \hideinitializer */
  #define PDMA_BURST_4        0x00000050UL            /*!<DMA Burst 4 Transfers  \hideinitializer */
  #define PDMA_BURST_2        0x00000060UL            /*!<DMA Burst 2 Transfers  \hideinitializer */
  #define PDMA_BURST_1        0x00000070UL            /*!<DMA Burst 1 Transfers  \hideinitializer */
  
  /*---------------------------------------------------------------------------------------------------------*/
  /*  Peripheral Transfer Mode Constant Definitions                                                          */
  /*---------------------------------------------------------------------------------------------------------*/
  #define PDMA_SPI0_TX        0x00000001UL            /*!<DMA Connect to SPI1 TX  \hideinitializer */
  #define PDMA_SPI1_TX        0x00000002UL            /*!<DMA Connect to SPI2 TX  \hideinitializer */
  #define PDMA_SPI2_TX        0x00000003UL            /*!<DMA Connect to SPI3 TX  \hideinitializer */
  #define PDMA_UART0_TX       0x00000004UL            /*!<DMA Connect to UART0 TX  \hideinitializer */
  #define PDMA_UART1_TX       0x00000005UL            /*!<DMA Connect to UART1 TX  \hideinitializer */
  #define PDMA_UART2_TX       0x00000006UL            /*!<DMA Connect to UART2 TX  \hideinitializer */
  #define PDMA_UART3_TX       0x00000007UL            /*!<DMA Connect to UART3 TX  \hideinitializer */
  #define PDMA_DAC_TX         0x00000008UL            /*!<DMA Connect to DAC TX  \hideinitializer */
  #define PDMA_ADC_RX         0x00000009UL            /*!<DMA Connect to ADC RX  \hideinitializer */
  #define PDMA_PWM0_P1_RX     0x0000000BUL            /*!<DMA Connect to PWM0 P1 RX  \hideinitializer */
  #define PDMA_PWM0_P2_RX     0x0000000CUL            /*!<DMA Connect to PWM0 P2 RX  \hideinitializer */
  #define PDMA_PWM0_P3_RX     0x0000000DUL            /*!<DMA Connect to PWM0 P3 RX  \hideinitializer */
  #define PDMA_PWM1_P1_RX     0x0000000EUL            /*!<DMA Connect to PWM1 P1 RX  \hideinitializer */
  #define PDMA_PWM1_P2_RX     0x0000000FUL            /*!<DMA Connect to PWM1 P2 RX  \hideinitializer */
  #define PDMA_PWM1_P3_RX     0x00000010UL            /*!<DMA Connect to PWM1 P3 RX  \hideinitializer */
  #define PDMA_SPI0_RX        0x00000011UL            /*!<DMA Connect to SPI0 RX  \hideinitializer */
  #define PDMA_SPI1_RX        0x00000012UL            /*!<DMA Connect to SPI1 RX  \hideinitializer */
  #define PDMA_SPI2_RX        0x00000013UL            /*!<DMA Connect to SPI2 RX  \hideinitializer */
  #define PDMA_UART0_RX       0x00000014UL            /*!<DMA Connect to UART0 RX  \hideinitializer */
  #define PDMA_UART1_RX       0x00000015UL            /*!<DMA Connect to UART1 RX  \hideinitializer */
  #define PDMA_UART2_RX       0x00000016UL            /*!<DMA Connect to UART2 RX  \hideinitializer */
  #define PDMA_UART3_RX       0x00000017UL            /*!<DMA Connect to UART3 RX  \hideinitializer */
  #define PDMA_MEM            0x0000001FUL            /*!<DMA Connect to Memory  \hideinitializer */
  
  /*---------------------------------------------------------------------------------------------------------*/
  /*  Interrupt Type Constant Definitions                                                                    */
  /*---------------------------------------------------------------------------------------------------------*/
  #define PDMA_INT_TRANS_DONE 0x00000000UL            /*!<Transfer Done Interrupt  \hideinitializer */
  #define PDMA_INT_TEMPTY     0x00000001UL            /*!<Table Empty Interrupt  \hideinitializer */
  #define PDMA_INT_TIMEOUT    0x00000002UL            /*!<Timeout Interrupt(M45xD/M45xC Only)  \hideinitializer */
  
  
  /*@}*/ /* end of group PDMA_EXPORTED_CONSTANTS */
  
  /** @addtogroup PDMA_EXPORTED_FUNCTIONS PDMA Exported Functions
    @{
  */
  
  /**
   * @brief       Get PDMA Interrupt Status
   *
   * @param[in]   None
   *
   * @return      None
   *
   * @details     This macro gets the interrupt status.
   */
  #define PDMA_GET_INT_STATUS() ((uint32_t)(PDMA->INTSTS))
  
  /**
   * @brief       Get Transfer Done Interrupt Status
   *
   * @param[in]   None
   *
   * @return      None
   *
   * @details     Get the transfer done Interrupt status.
   */
  #define PDMA_GET_TD_STS() ((uint32_t)(PDMA->TDSTS))
  
  /**
   * @brief       Clear Transfer Done Interrupt Status
   *
   * @param[in]   u32Mask     The channel mask
   *
   * @return      None
   *
   * @details     Clear the transfer done Interrupt status.
   */
  #define PDMA_CLR_TD_FLAG(u32Mask) ((uint32_t)(PDMA->TDSTS = (u32Mask)))
  
  /**
   * @brief       Get Target Abort Interrupt Status
   *
   * @param[in]   None
   *
   * @return      None
   *
   * @details     Get the target abort Interrupt status.
   */
  #define PDMA_GET_ABORT_STS() ((uint32_t)(PDMA->ABTSTS))
  
  /**
   * @brief       Clear Target Abort Interrupt Status
   *
   * @param[in]   u32Mask     The channel mask
   *
   * @return      None
   *
   * @details     Clear the target abort Interrupt status.
   */
  #define PDMA_CLR_ABORT_FLAG(u32Mask) ((uint32_t)(PDMA->ABTSTS = (u32Mask)))
  
  /**
   * @brief       Get Scatter-Gather Table Empty Interrupt Status
   *
   * @param[in]   None
   *
   * @return      None
   *
   * @details     Get the scatter-gather table empty Interrupt status.
   */
  #define PDMA_GET_EMPTY_STS() ((uint32_t)(PDMA->SCATSTS))
  
  /**
   * @brief       Clear Scatter-Gather Table Empty Interrupt Status
   *
   * @param[in]   u32Mask     The channel mask
   *
   * @return      None
   *
   * @details     Clear the scatter-gather table empty Interrupt status.
   */
  #define PDMA_CLR_EMPTY_FLAG(u32Mask) ((uint32_t)(PDMA->SCATSTS = (u32Mask)))
  
  /**
   * @brief       Clear Timeout Interrupt Status
   *
   * @param[in]   u32Ch     The selected channel
   *
   * @return      None
   *
   * @details     Clear the selected channel timeout interrupt status.
   * @note        This function is only supported in M45xD/M45xC.
   */
  #define PDMA_CLR_TMOUT_FLAG(u32Ch) ((uint32_t)(PDMA->INTSTS = (1 << ((u32Ch) + 8))))
  
  /**
   * @brief       Check Channel Status
   *
   * @param[in]   u32Ch     The selected channel
   *
   * @retval      0 Idle state
   * @retval      1 Busy state
   *
   * @details     Check the selected channel is busy or not.
   */
  #define PDMA_IS_CH_BUSY(u32Ch) ((uint32_t)(PDMA->TRGSTS & (1 << (u32Ch)))? 1 : 0)
  
  /**
   * @brief       Set Source Address
   *
   * @param[in]   u32Ch     The selected channel
   * @param[in]   u32Addr   The selected address
   *
   * @return      None
   *
   * @details     This macro set the selected channel source address.
   */
  #define PDMA_SET_SRC_ADDR(u32Ch, u32Addr) ((uint32_t)(PDMA->DSCT[(u32Ch)].SA = (u32Addr)))
  
  /**
   * @brief       Set Destination Address
   *
   * @param[in]   u32Ch     The selected channel
   * @param[in]   u32Addr   The selected address
   *
   * @return      None
   *
   * @details     This macro set the selected channel destination address.
   */
  #define PDMA_SET_DST_ADDR(u32Ch, u32Addr) ((uint32_t)(PDMA->DSCT[(u32Ch)].DA = (u32Addr)))
  
  /**
   * @brief       Set Transfer Count
   *
   * @param[in]   u32Ch          The selected channel
   * @param[in]   u32TransCount  Transfer Count
   *
   * @return      None
   *
   * @details     This macro set the selected channel transfer count.
   */
  #define PDMA_SET_TRANS_CNT(u32Ch, u32TransCount) ((uint32_t)(PDMA->DSCT[(u32Ch)].CTL=(PDMA->DSCT[(u32Ch)].CTL&~PDMA_DSCT_CTL_TXCNT_Msk)|(((u32TransCount)-1) << PDMA_DSCT_CTL_TXCNT_Pos)))
  
  /**
   * @brief       Set Scatter-gather descriptor Address
   *
   * @param[in]   u32Ch     The selected channel
   * @param[in]   u32Addr   The descriptor address
   *
   * @return      None
   *
   * @details     This macro set the selected channel scatter-gather descriptor address.
   */
  #define PDMA_SET_SCATTER_DESC(u32Ch, u32Addr) ((uint32_t)(PDMA->DSCT[(u32Ch)].NEXT = (u32Addr) - (PDMA->SCATBA)))
  
  /**
   * @brief       Stop the channel
   *
   * @param[in]   u32Ch     The selected channel
   *
   * @return      None
   *
   * @details     This macro stop the selected channel.
   */
  #define PDMA_STOP(u32Ch) ((uint32_t)(PDMA->STOP = (1 << (u32Ch))))
  
  /*---------------------------------------------------------------------------------------------------------*/
  /* Define PWM functions prototype                                                                          */
  /*---------------------------------------------------------------------------------------------------------*/
  void PDMA_Open(uint32_t u32Mask);
  void PDMA_Close(void);
  void PDMA_SetTransferCnt(uint32_t u32Ch, uint32_t u32Width, uint32_t u32TransCount);
  void PDMA_SetTransferAddr(uint32_t u32Ch, uint32_t u32SrcAddr, uint32_t u32SrcCtrl, uint32_t u32DstAddr, uint32_t u32DstCtrl);
  void PDMA_SetTransferMode(uint32_t u32Ch, uint32_t u32Peripheral, uint32_t u32ScatterEn, uint32_t u32DescAddr);
  void PDMA_SetBurstType(uint32_t u32Ch, uint32_t u32BurstType, uint32_t u32BurstSize);
  void PDMA_EnableTimeout(uint32_t u32Mask);
  void PDMA_DisableTimeout(uint32_t u32Mask);
  void PDMA_SetTimeOut(uint32_t u32Ch, uint32_t u32OnOff, uint32_t u32TimeOutCnt);
  void PDMA_Trigger(uint32_t u32Ch);
  void PDMA_EnableInt(uint32_t u32Ch, uint32_t u32Mask);
  void PDMA_DisableInt(uint32_t u32Ch, uint32_t u32Mask);
  
  
  /*@}*/ /* end of group PDMA_EXPORTED_FUNCTIONS */
  
  /*@}*/ /* end of group PDMA_Driver */
  
  /*@}*/ /* end of group Standard_Driver */
  
  #ifdef __cplusplus
  }
  #endif
  
  #endif //__PDMA_H__
  
  /*** (C) COPYRIGHT 2014~2015 Nuvoton Technology Corp. ***/
  