Mouse code for the MacroRat
mbed-dev/targets/TARGET_NUVOTON/TARGET_NUC472/device/StdDriver/nuc472_pdma.c
- Committer:
- sahilmgandhi
- Date:
- 2017-06-03
- Revision:
- 46:b156ef445742
- Parent:
- 18:6a4db94011d3
File content as of revision 46:b156ef445742:
/**************************************************************************//** * @file pdma.c * @version V1.00 * $Revision: 7 $ * $Date: 14/05/29 1:13p $ * @brief NUC472/NUC442 PDMA driver source file * * @note * Copyright (C) 2013 Nuvoton Technology Corp. All rights reserved. *****************************************************************************/ #include "NUC472_442.h" static uint8_t u32ChSelect[PDMA_CH_MAX]; /** @addtogroup NUC472_442_Device_Driver NUC472/NUC442 Device Driver @{ */ /** @addtogroup NUC472_442_PDMA_Driver PDMA Driver @{ */ /** @addtogroup NUC472_442_PDMA_EXPORTED_FUNCTIONS PDMA Exported Functions @{ */ /** * @brief PDMA Open * * @param[in] u32Mask Channel enable bits. * * @return None * * @details This function enable the PDMA channels. */ void PDMA_Open(uint32_t u32Mask) { int volatile i; for (i=0; i<PDMA_CH_MAX; i++) { PDMA->DSCT[i].CTL = 0; u32ChSelect[i] = 0x1f; } PDMA->CHCTL |= u32Mask; } /** * @brief PDMA Close * * @param[in] None * * @return None * * @details This function disable all PDMA channels. */ void PDMA_Close(void) { PDMA->CHCTL = 0; } /** * @brief Set PDMA Transfer Count * * @param[in] u32Ch The selected channel * @param[in] u32Width Data width. PDMA_WIDTH_8, PDMA_WIDTH_16, or 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(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-1) << PDMA_DSCT_CTL_TXCNT_Pos)); } /** * @brief Set PDMA Transfer Address * * @param[in] u32Ch The selected channel * @param[in] u32SrcAddr Source address * @param[in] u32SrcCtrl Source control attribute. PDMA_SAR_INC or PDMA_SAR_FIX * @param[in] u32DstAddr destination address * @param[in] u32DstCtrl destination control attribute. PDMA_DAR_INC or PDMA_DAR_FIX * * @return None * * @details This function set the selected channel source/destination address and attribute. */ void PDMA_SetTransferAddr(uint32_t u32Ch, uint32_t u32SrcAddr, uint32_t u32SrcCtrl, uint32_t u32DstAddr, uint32_t u32DstCtrl) { PDMA->DSCT[u32Ch].ENDSA = u32SrcAddr; PDMA->DSCT[u32Ch].ENDDA = 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] u32Ch The selected channel * @param[in] u32Peripheral The selected peripheral. PDMA_SPI0_TX, PDMA_UART0_TX, PDMA_I2S_TX,...PDMA_MEM * @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(uint32_t u32Ch, uint32_t u32Peripheral, uint32_t u32ScatterEn, uint32_t u32DescAddr) { u32ChSelect[u32Ch] = u32Peripheral; switch (u32Ch) { case 0: PDMA->REQSEL0_3 = (PDMA->REQSEL0_3 & ~PDMA_REQSEL0_3_REQSRC0_Msk) | u32Peripheral; break; case 1: PDMA->REQSEL0_3 = (PDMA->REQSEL0_3 & ~PDMA_REQSEL0_3_REQSRC1_Msk) | (u32Peripheral << PDMA_REQSEL0_3_REQSRC1_Pos); break; case 2: PDMA->REQSEL0_3 = (PDMA->REQSEL0_3 & ~PDMA_REQSEL0_3_REQSRC2_Msk) | (u32Peripheral << PDMA_REQSEL0_3_REQSRC2_Pos); break; case 3: PDMA->REQSEL0_3 = (PDMA->REQSEL0_3 & ~PDMA_REQSEL0_3_REQSRC3_Msk) | (u32Peripheral << PDMA_REQSEL0_3_REQSRC3_Pos); break; case 4: PDMA->REQSEL4_7 = (PDMA->REQSEL4_7 & ~PDMA_REQSEL4_7_REQSRC4_Msk) | u32Peripheral; break; case 5: PDMA->REQSEL4_7 = (PDMA->REQSEL4_7 & ~PDMA_REQSEL4_7_REQSRC5_Msk) | (u32Peripheral << PDMA_REQSEL4_7_REQSRC5_Pos); break; case 6: PDMA->REQSEL4_7 = (PDMA->REQSEL4_7 & ~PDMA_REQSEL4_7_REQSRC6_Msk) | (u32Peripheral << PDMA_REQSEL4_7_REQSRC6_Pos); break; case 7: PDMA->REQSEL4_7 = (PDMA->REQSEL4_7 & ~PDMA_REQSEL4_7_REQSRC7_Msk) | (u32Peripheral << PDMA_REQSEL4_7_REQSRC7_Pos); break; case 8: PDMA->REQSEL8_11 = (PDMA->REQSEL4_7 & ~PDMA_REQSEL8_11_REQSRC8_Msk) | u32Peripheral; break; case 9: PDMA->REQSEL4_7 = (PDMA->REQSEL4_7 & ~PDMA_REQSEL8_11_REQSRC9_Msk) | (u32Peripheral << PDMA_REQSEL8_11_REQSRC9_Pos); break; case 10: PDMA->REQSEL4_7 = (PDMA->REQSEL4_7 & ~PDMA_REQSEL8_11_REQSRC10_Msk) | (u32Peripheral << PDMA_REQSEL8_11_REQSRC10_Pos); break; case 11: PDMA->REQSEL4_7 = (PDMA->REQSEL4_7 & ~PDMA_REQSEL8_11_REQSRC11_Msk) | (u32Peripheral << PDMA_REQSEL8_11_REQSRC11_Pos); break; case 12: PDMA->REQSEL12_15 = (PDMA->REQSEL12_15 & ~PDMA_REQSEL12_15_REQSRC12_Msk) | u32Peripheral; break; case 13: PDMA->REQSEL12_15 = (PDMA->REQSEL12_15 & ~PDMA_REQSEL12_15_REQSRC13_Msk) | (u32Peripheral << PDMA_REQSEL12_15_REQSRC13_Pos); break; case 14: PDMA->REQSEL12_15 = (PDMA->REQSEL12_15 & ~PDMA_REQSEL12_15_REQSRC14_Msk) | (u32Peripheral << PDMA_REQSEL12_15_REQSRC14_Pos); break; case 15: PDMA->REQSEL12_15 = (PDMA->REQSEL12_15 & ~PDMA_REQSEL12_15_REQSRC15_Msk) | (u32Peripheral << PDMA_REQSEL12_15_REQSRC15_Pos); break; default: ; } 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; } /** * @brief Set PDMA Burst Type * * @param[in] u32Ch The selected channel * @param[in] u32BurstType Burst mode or single mode * @param[in] u32BurstSize Set the size of burst mode * * @return None * * @details This function set the selected channel burst type and size. */ void PDMA_SetBurstType(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 Set PDMA TimeOut Count * * @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(uint32_t u32Ch, uint32_t u32OnOff, uint32_t u32TimeOutCnt) { switch(u32Ch) { case 0: PDMA->TOC0_1 = (PDMA->TOC0_1 & ~PDMA_TOC0_1_TOC0_Msk) | u32TimeOutCnt; break; case 1: PDMA->TOC0_1 = (PDMA->TOC0_1 & ~PDMA_TOC0_1_TOC1_Msk) | (u32TimeOutCnt << PDMA_TOC0_1_TOC1_Pos); break; case 2: PDMA->TOC2_3 = (PDMA->TOC2_3 & ~PDMA_TOC2_3_TOC2_Msk) | u32TimeOutCnt; break; case 3: PDMA->TOC2_3 = (PDMA->TOC2_3 & ~PDMA_TOC2_3_TOC3_Msk) | (u32TimeOutCnt << PDMA_TOC2_3_TOC3_Pos); break; case 4: PDMA->TOC4_5 = (PDMA->TOC4_5 & ~PDMA_TOC4_5_TOC4_Msk) | u32TimeOutCnt; break; case 5: PDMA->TOC4_5 = (PDMA->TOC4_5 & ~PDMA_TOC4_5_TOC5_Msk) | (u32TimeOutCnt << PDMA_TOC4_5_TOC5_Pos); break; case 6: PDMA->TOC6_7 = (PDMA->TOC6_7 & ~PDMA_TOC6_7_TOC6_Msk) | u32TimeOutCnt; break; case 7: PDMA->TOC6_7 = (PDMA->TOC6_7 & ~PDMA_TOC6_7_TOC7_Msk) | (u32TimeOutCnt << PDMA_TOC6_7_TOC7_Pos); break; case 8: PDMA->TOC8_9 = (PDMA->TOC8_9 & ~PDMA_TOC8_9_TOC8_Msk) | u32TimeOutCnt; break; case 9: PDMA->TOC8_9 = (PDMA->TOC8_9 & ~PDMA_TOC8_9_TOC9_Msk) | (u32TimeOutCnt << PDMA_TOC8_9_TOC9_Pos); break; case 10: PDMA->TOC10_11 = (PDMA->TOC10_11 & ~PDMA_TOC10_11_TOC10_Msk) | u32TimeOutCnt; break; case 11: PDMA->TOC10_11 = (PDMA->TOC10_11 & ~PDMA_TOC10_11_TOC11_Msk) | (u32TimeOutCnt << PDMA_TOC10_11_TOC11_Pos); break; case 12: PDMA->TOC12_13 = (PDMA->TOC12_13 & ~PDMA_TOC12_13_TOC12_Msk) | u32TimeOutCnt; break; case 13: PDMA->TOC12_13 = (PDMA->TOC12_13 & ~PDMA_TOC12_13_TOC13_Msk) | (u32TimeOutCnt << PDMA_TOC12_13_TOC13_Pos); break; case 14: PDMA->TOC14_15 = (PDMA->TOC14_15 & ~PDMA_TOC14_15_TOC14_Msk) | u32TimeOutCnt; break; case 15: PDMA->TOC14_15 = (PDMA->TOC14_15 & ~PDMA_TOC14_15_TOC15_Msk) | (u32TimeOutCnt << PDMA_TOC14_15_TOC15_Pos); break; default: ; } } /** * @brief Trigger PDMA * * @param[in] u32Ch The selected channel * * @return None * * @details This function trigger the selected channel. */ void PDMA_Trigger(uint32_t u32Ch) { if (u32ChSelect[u32Ch] == PDMA_MEM) PDMA->SWREQ = (1 << u32Ch); } /** * @brief Enable Interrupt * * @param[in] u32Ch The selected channel * @param[in] u32Mask The Interrupt Type * * @return None * * @details This function enable the selected channel interrupt. */ void PDMA_EnableInt(uint32_t u32Ch, uint32_t u32Mask) { PDMA->INTEN |= (1 << u32Ch); } /** * @brief Disable Interrupt * * @param[in] u32Ch The selected channel * @param[in] u32Mask The Interrupt Type * * @return None * * @details This function disable the selected channel interrupt. */ void PDMA_DisableInt(uint32_t u32Ch, uint32_t u32Mask) { PDMA->INTEN &= ~(1 << u32Ch); } /*@}*/ /* end of group NUC472_442_PDMA_EXPORTED_FUNCTIONS */ /*@}*/ /* end of group NUC472_442_PDMA_Driver */ /*@}*/ /* end of group NUC472_442_Device_Driver */ /*** (C) COPYRIGHT 2013 Nuvoton Technology Corp. ***/