Fawwaz Nadzmy
mbed library sources. Supersedes mbed-src.
Fork of
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by 
mbed official
Diff: targets/TARGET_NUVOTON/TARGET_NUC472/device/StdDriver/nuc472_pdma.c
- Revision:
- 149:156823d33999
- Parent:
- 144:ef7eb2e8f9f7
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/targets/TARGET_NUVOTON/TARGET_NUC472/device/StdDriver/nuc472_pdma.c Fri Oct 28 11:17:30 2016 +0100
@@ -0,0 +1,313 @@
+/**************************************************************************//**
+ * @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. ***/