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rt-thread/bsp/nuvoton/libraries/nuc980/Driver/Source/nu_pdma.c

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/**************************************************************************//**
* @file pdma.c
* @brief PDMA driver source file
*
* SPDX-License-Identifier: Apache-2.0
* @copyright (C) 2018 Nuvoton Technology Corp. All rights reserved.
*****************************************************************************/
#include "nuc980.h"
#include "nu_pdma.h"
/** @addtogroup Standard_Driver Standard Driver
@{
*/
/** @addtogroup PDMA_Driver PDMA Driver
@{
*/
/** @addtogroup PDMA_EXPORTED_FUNCTIONS PDMA Exported Functions
@{
*/
/**
* @brief PDMA Open
*
* @param[in] pdma The pointer of the specified PDMA module
*
* @param[in] u32Mask Channel enable bits.
*
* @return None
*
* @details This function enable the PDMA channels.
*/
void PDMA_Open(PDMA_T *pdma, uint32_t u32Mask)
{
uint32_t i;
for (i = 0UL; i < PDMA_CH_MAX; i++)
{
if ((1 << i) & u32Mask)
{
pdma->DSCT[i].CTL = 0UL;
}
}
pdma->CHCTL |= u32Mask;
}
/**
* @brief PDMA Close
*
* @param[in] pdma The pointer of the specified PDMA module
*
* @return None
*
* @details This function disable all PDMA channels.
*/
void PDMA_Close(PDMA_T *pdma)
{
pdma->CHCTL = 0UL;
}
/**
* @brief Set PDMA Transfer Count
*
* @param[in] pdma The pointer of the specified PDMA module
* @param[in] u32Ch The selected channel
* @param[in] u32Width Data width. Valid values are
* - \ref PDMA_WIDTH_8
* - \ref PDMA_WIDTH_16
* - \ref PDMA_WIDTH_32
* @param[in] u32TransCount Transfer count
*
* @return None
*
* @details This function set the selected channel data width and transfer count.
*/
void PDMA_SetTransferCnt(PDMA_T *pdma, uint32_t u32Ch, uint32_t u32Width, uint32_t u32TransCount)
{
pdma->DSCT[u32Ch].CTL &= ~(PDMA_DSCT_CTL_TXCNT_Msk | PDMA_DSCT_CTL_TXWIDTH_Msk);
pdma->DSCT[u32Ch].CTL |= (u32Width | ((u32TransCount - 1UL) << PDMA_DSCT_CTL_TXCNT_Pos));
}
/**
* @brief Set PDMA Stride Mode
*
* @param[in] pdma The pointer of the specified PDMA module
* @param[in] u32Ch The selected channel
* @param[in] u32DestLen Destination stride count
* @param[in] u32SrcLen Source stride count
* @param[in] u32TransCount Transfer count
*
* @return None
*
* @details This function set the selected stride mode.
*/
void PDMA_SetStride(PDMA_T *pdma, uint32_t u32Ch, uint32_t u32DestLen, uint32_t u32SrcLen, uint32_t u32TransCount)
{
pdma->DSCT[u32Ch].CTL |= PDMA_DSCT_CTL_STRIDEEN_Msk;
pdma->STRIDE[u32Ch].ASOCR = (u32DestLen << 16) | u32SrcLen;
pdma->STRIDE[u32Ch].STCR = u32TransCount;
}
/**
* @brief Set PDMA Transfer Address
*
* @param[in] pdma The pointer of the specified PDMA module
* @param[in] u32Ch The selected channel
* @param[in] u32SrcAddr Source address
* @param[in] u32SrcCtrl Source control attribute. Valid values are
* - \ref PDMA_SAR_INC
* - \ref PDMA_SAR_FIX
* @param[in] u32DstAddr destination address
* @param[in] u32DstCtrl destination control attribute. Valid values are
* - \ref PDMA_DAR_INC
* - \ref PDMA_DAR_FIX
*
* @return None
*
* @details This function set the selected channel source/destination address and attribute.
*/
void PDMA_SetTransferAddr(PDMA_T *pdma, uint32_t u32Ch, uint32_t u32SrcAddr, uint32_t u32SrcCtrl, uint32_t u32DstAddr, uint32_t u32DstCtrl)
{
pdma->DSCT[u32Ch].SA = u32SrcAddr;
pdma->DSCT[u32Ch].DA = u32DstAddr;
pdma->DSCT[u32Ch].CTL &= ~(PDMA_DSCT_CTL_SAINC_Msk | PDMA_DSCT_CTL_DAINC_Msk);
pdma->DSCT[u32Ch].CTL |= (u32SrcCtrl | u32DstCtrl);
}
/**
* @brief Set PDMA Transfer Mode
*
* @param[in] pdma The pointer of the specified PDMA module
* @param[in] u32Ch The selected channel
* @param[in] u32Peripheral The selected peripheral. Valid values are
* - \ref PDMA_MEM
* - \ref PDMA_UART0_TX
* - \ref PDMA_UART0_RX
* - \ref PDMA_UART1_TX
* - \ref PDMA_UART1_RX
* - \ref PDMA_UART2_TX
* - \ref PDMA_UART2_RX
* - \ref PDMA_UART3_TX
* - \ref PDMA_UART3_RX
* - \ref PDMA_UART4_TX
* - \ref PDMA_UART4_RX
* - \ref PDMA_UART5_TX
* - \ref PDMA_UART5_RX
* - \ref PDMA_UART6_TX
* - \ref PDMA_UART6_RX
* - \ref PDMA_UART7_TX
* - \ref PDMA_UART7_RX
* - \ref PDMA_QSPI0_TX
* - \ref PDMA_QSPI0_RX
* - \ref PDMA_SPI0_TX
* - \ref PDMA_SPI0_RX
* - \ref PDMA_SPI1_TX
* - \ref PDMA_SPI1_RX
* - \ref PDMA_UART8_TX
* - \ref PDMA_UART8_RX
* - \ref PDMA_UART9_TX
* - \ref PDMA_UART9_RX
* - \ref PDMA_I2C0_TX
* - \ref PDMA_I2C0_RX
* - \ref PDMA_I2C1_TX
* - \ref PDMA_I2C1_RX
* - \ref PDMA_I2C2_TX
* - \ref PDMA_I2C2_RX
* - \ref PDMA_I2C3_TX
* - \ref PDMA_I2C3_RX
* - \ref PDMA_TIMER0
* - \ref PDMA_TIMER1
* - \ref PDMA_TIMER2
* - \ref PDMA_TIMER3
* - \ref PDMA_TIMER4
* - \ref PDMA_TIMER5
* @param[in] u32ScatterEn Scatter-gather mode enable
* @param[in] u32DescAddr Scatter-gather descriptor address
*
* @return None
*
* @details This function set the selected channel transfer mode. Include peripheral setting.
*/
void PDMA_SetTransferMode(PDMA_T *pdma, uint32_t u32Ch, uint32_t u32Peripheral, uint32_t u32ScatterEn, uint32_t u32DescAddr)
{
if (u32Ch < PDMA_CH_MAX)
{
__IO uint32_t *pau32REQSEL = (__IO uint32_t *)&pdma->REQSEL0_3;
uint32_t u32REQSEL_Pos, u32REQSEL_Msk;
u32REQSEL_Pos = (u32Ch % 4) * 8 ;
u32REQSEL_Msk = PDMA_REQSEL0_3_REQSRC0_Msk << u32REQSEL_Pos;
pau32REQSEL[u32Ch / 4] = (pau32REQSEL[u32Ch / 4] & ~u32REQSEL_Msk) | (u32Peripheral << u32REQSEL_Pos);
if (u32ScatterEn)
{
pdma->DSCT[u32Ch].CTL = (pdma->DSCT[u32Ch].CTL & ~PDMA_DSCT_CTL_OPMODE_Msk) | PDMA_OP_SCATTER;
pdma->DSCT[u32Ch].NEXT = u32DescAddr - (pdma->SCATBA);
}
else
{
pdma->DSCT[u32Ch].CTL = (pdma->DSCT[u32Ch].CTL & ~PDMA_DSCT_CTL_OPMODE_Msk) | PDMA_OP_BASIC;
}
}
else {}
}
/**
* @brief Set PDMA Burst Type and Size
*
* @param[in] pdma The pointer of the specified PDMA module
* @param[in] u32Ch The selected channel
* @param[in] u32BurstType Burst mode or single mode. Valid values are
* - \ref PDMA_REQ_SINGLE
* - \ref PDMA_REQ_BURST
* @param[in] u32BurstSize Set the size of burst mode. Valid values are
* - \ref PDMA_BURST_128
* - \ref PDMA_BURST_64
* - \ref PDMA_BURST_32
* - \ref PDMA_BURST_16
* - \ref PDMA_BURST_8
* - \ref PDMA_BURST_4
* - \ref PDMA_BURST_2
* - \ref PDMA_BURST_1
*
* @return None
*
* @details This function set the selected channel burst type and size.
*/
void PDMA_SetBurstType(PDMA_T *pdma, uint32_t u32Ch, uint32_t u32BurstType, uint32_t u32BurstSize)
{
pdma->DSCT[u32Ch].CTL &= ~(PDMA_DSCT_CTL_TXTYPE_Msk | PDMA_DSCT_CTL_BURSIZE_Msk);
pdma->DSCT[u32Ch].CTL |= (u32BurstType | u32BurstSize);
}
/**
* @brief Enable timeout function
*
* @param[in] pdma The pointer of the specified PDMA module
*
* @param[in] u32Mask Channel enable bits.
*
* @return None
*
* @details This function enable timeout function of the selected channel(s).
*/
void PDMA_EnableTimeout(PDMA_T *pdma, uint32_t u32Mask)
{
pdma->TOUTEN |= u32Mask;
}
/**
* @brief Disable timeout function
*
* @param[in] pdma The pointer of the specified PDMA module
*
* @param[in] u32Mask Channel enable bits.
*
* @return None
*
* @details This function disable timeout function of the selected channel(s).
*/
void PDMA_DisableTimeout(PDMA_T *pdma, uint32_t u32Mask)
{
pdma->TOUTEN &= ~u32Mask;
}
/**
* @brief Set PDMA Timeout Count
*
* @param[in] pdma The pointer of the specified PDMA module
* @param[in] u32Ch The selected channel,
* @param[in] u32OnOff Enable/disable time out function
* @param[in] u32TimeOutCnt Timeout count
*
* @return None
*
* @details This function set the timeout count.
*/
void PDMA_SetTimeOut(PDMA_T *pdma, uint32_t u32Ch, uint32_t u32OnOff, uint32_t u32TimeOutCnt)
{
if (u32Ch < PDMA_CH_MAX)
{
__IO uint32_t *pau32TOC = (__IO uint32_t *)&pdma->TOC0_1;
uint32_t u32TOC_Pos, u32TOC_Msk;
u32TOC_Pos = (u32Ch % 2) * 16 ;
u32TOC_Msk = PDMA_TOC0_1_TOC0_Msk << u32TOC_Pos;
pau32TOC[u32Ch / 2] = (pau32TOC[u32Ch / 2] & ~u32TOC_Msk) | (u32TimeOutCnt << u32TOC_Pos);
if (u32OnOff)
pdma->TOUTEN |= (1 << u32Ch);
else
pdma->TOUTEN &= ~(1 << u32Ch);
}
else {}
}
/**
* @brief Trigger PDMA
*
* @param[in] pdma The pointer of the specified PDMA module
* @param[in] u32Ch The selected channel
*
* @return None
*
* @details This function trigger the selected channel.
*/
void PDMA_Trigger(PDMA_T *pdma, uint32_t u32Ch)
{
__IO uint32_t *pau32REQSEL = (__IO uint32_t *)&pdma->REQSEL0_3;
uint32_t u32REQSEL_Pos, u32REQSEL_Msk, u32ChReq;
u32REQSEL_Pos = (u32Ch % 4) * 8 ;
u32REQSEL_Msk = PDMA_REQSEL0_3_REQSRC0_Msk << u32REQSEL_Pos;
u32ChReq = (pau32REQSEL[u32Ch / 4] & u32REQSEL_Msk) >> u32REQSEL_Pos;
if (u32ChReq == PDMA_MEM)
{
pdma->SWREQ = (1ul << u32Ch);
}
else {}
}
/**
* @brief Enable Interrupt
*
* @param[in] pdma The pointer of the specified PDMA module
* @param[in] u32Ch The selected channel
* @param[in] u32Mask The Interrupt Type. Valid values are
* - \ref PDMA_INT_TRANS_DONE
* - \ref PDMA_INT_TEMPTY
* - \ref PDMA_INT_TIMEOUT
*
* @return None
*
* @details This function enable the selected channel interrupt.
*/
void PDMA_EnableInt(PDMA_T *pdma, uint32_t u32Ch, uint32_t u32Mask)
{
switch (u32Mask)
{
case PDMA_INT_TRANS_DONE:
pdma->INTEN |= (1ul << u32Ch);
break;
case PDMA_INT_TEMPTY:
pdma->DSCT[u32Ch].CTL &= ~PDMA_DSCT_CTL_TBINTDIS_Msk;
break;
case PDMA_INT_TIMEOUT:
pdma->TOUTIEN |= (1ul << u32Ch);
break;
default:
break;
}
}
/**
* @brief Disable Interrupt
*
* @param[in] pdma The pointer of the specified PDMA module
* @param[in] u32Ch The selected channel
* @param[in] u32Mask The Interrupt Type. Valid values are
* - \ref PDMA_INT_TRANS_DONE
* - \ref PDMA_INT_TEMPTY
* - \ref PDMA_INT_TIMEOUT
*
* @return None
*
* @details This function disable the selected channel interrupt.
*/
void PDMA_DisableInt(PDMA_T *pdma, uint32_t u32Ch, uint32_t u32Mask)
{
switch (u32Mask)
{
case PDMA_INT_TRANS_DONE:
pdma->INTEN &= ~(1ul << u32Ch);
break;
case PDMA_INT_TEMPTY:
pdma->DSCT[u32Ch].CTL |= PDMA_DSCT_CTL_TBINTDIS_Msk;
break;
case PDMA_INT_TIMEOUT:
pdma->TOUTIEN &= ~(1ul << u32Ch);
break;
default:
break;
}
}
/*@}*/ /* end of group PDMA_EXPORTED_FUNCTIONS */
/*@}*/ /* end of group PDMA_Driver */
/*@}*/ /* end of group Standard_Driver */
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