/**************************************************************************//** * @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 */