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Diff: targets/TARGET_STM/TARGET_STM32F4/device/stm32f4xx_ll_dma.c
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- 0:13413ea9a877
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/targets/TARGET_STM/TARGET_STM32F4/device/stm32f4xx_ll_dma.c Sun Jun 12 14:02:44 2022 +0000 @@ -0,0 +1,444 @@ +/** + ****************************************************************************** + * @file stm32f4xx_ll_dma.c + * @author MCD Application Team + * @version V1.7.1 + * @date 14-April-2017 + * @brief DMA LL module driver. + ****************************************************************************** + * @attention + * + * <h2><center>© COPYRIGHT(c) 2017 STMicroelectronics</center></h2> + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. Neither the name of STMicroelectronics nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER + * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************** + */ +#if defined(USE_FULL_LL_DRIVER) + +/* Includes ------------------------------------------------------------------*/ +#include "stm32f4xx_ll_dma.h" +#include "stm32f4xx_ll_bus.h" +#ifdef USE_FULL_ASSERT +#include "stm32_assert.h" +#else +#define assert_param(expr) ((void)0U) +#endif + +/** @addtogroup STM32F4xx_LL_Driver + * @{ + */ + +#if defined (DMA1) || defined (DMA2) + +/** @defgroup DMA_LL DMA + * @{ + */ + +/* Private types -------------------------------------------------------------*/ +/* Private variables ---------------------------------------------------------*/ +/* Private constants ---------------------------------------------------------*/ +/* Private macros ------------------------------------------------------------*/ +/** @addtogroup DMA_LL_Private_Macros + * @{ + */ +#define IS_LL_DMA_DIRECTION(__VALUE__) (((__VALUE__) == LL_DMA_DIRECTION_PERIPH_TO_MEMORY) || \ + ((__VALUE__) == LL_DMA_DIRECTION_MEMORY_TO_PERIPH) || \ + ((__VALUE__) == LL_DMA_DIRECTION_MEMORY_TO_MEMORY)) + +#define IS_LL_DMA_MODE(__VALUE__) (((__VALUE__) == LL_DMA_MODE_NORMAL) || \ + ((__VALUE__) == LL_DMA_MODE_CIRCULAR) || \ + ((__VALUE__) == LL_DMA_MODE_PFCTRL)) + +#define IS_LL_DMA_PERIPHINCMODE(__VALUE__) (((__VALUE__) == LL_DMA_PERIPH_INCREMENT) || \ + ((__VALUE__) == LL_DMA_PERIPH_NOINCREMENT)) + +#define IS_LL_DMA_MEMORYINCMODE(__VALUE__) (((__VALUE__) == LL_DMA_MEMORY_INCREMENT) || \ + ((__VALUE__) == LL_DMA_MEMORY_NOINCREMENT)) + +#define IS_LL_DMA_PERIPHDATASIZE(__VALUE__) (((__VALUE__) == LL_DMA_PDATAALIGN_BYTE) || \ + ((__VALUE__) == LL_DMA_PDATAALIGN_HALFWORD) || \ + ((__VALUE__) == LL_DMA_PDATAALIGN_WORD)) + +#define IS_LL_DMA_MEMORYDATASIZE(__VALUE__) (((__VALUE__) == LL_DMA_MDATAALIGN_BYTE) || \ + ((__VALUE__) == LL_DMA_MDATAALIGN_HALFWORD) || \ + ((__VALUE__) == LL_DMA_MDATAALIGN_WORD)) + +#define IS_LL_DMA_NBDATA(__VALUE__) ((__VALUE__) <= 0x0000FFFFU) + +#define IS_LL_DMA_CHANNEL(__VALUE__) (((__VALUE__) == LL_DMA_CHANNEL_0) || \ + ((__VALUE__) == LL_DMA_CHANNEL_1) || \ + ((__VALUE__) == LL_DMA_CHANNEL_2) || \ + ((__VALUE__) == LL_DMA_CHANNEL_3) || \ + ((__VALUE__) == LL_DMA_CHANNEL_4) || \ + ((__VALUE__) == LL_DMA_CHANNEL_5) || \ + ((__VALUE__) == LL_DMA_CHANNEL_6) || \ + ((__VALUE__) == LL_DMA_CHANNEL_7)) + +#define IS_LL_DMA_PRIORITY(__VALUE__) (((__VALUE__) == LL_DMA_PRIORITY_LOW) || \ + ((__VALUE__) == LL_DMA_PRIORITY_MEDIUM) || \ + ((__VALUE__) == LL_DMA_PRIORITY_HIGH) || \ + ((__VALUE__) == LL_DMA_PRIORITY_VERYHIGH)) + +#define IS_LL_DMA_ALL_STREAM_INSTANCE(INSTANCE, STREAM) ((((INSTANCE) == DMA1) && \ + (((STREAM) == LL_DMA_STREAM_0) || \ + ((STREAM) == LL_DMA_STREAM_1) || \ + ((STREAM) == LL_DMA_STREAM_2) || \ + ((STREAM) == LL_DMA_STREAM_3) || \ + ((STREAM) == LL_DMA_STREAM_4) || \ + ((STREAM) == LL_DMA_STREAM_5) || \ + ((STREAM) == LL_DMA_STREAM_6) || \ + ((STREAM) == LL_DMA_STREAM_7) || \ + ((STREAM) == LL_DMA_STREAM_ALL))) ||\ + (((INSTANCE) == DMA2) && \ + (((STREAM) == LL_DMA_STREAM_0) || \ + ((STREAM) == LL_DMA_STREAM_1) || \ + ((STREAM) == LL_DMA_STREAM_2) || \ + ((STREAM) == LL_DMA_STREAM_3) || \ + ((STREAM) == LL_DMA_STREAM_4) || \ + ((STREAM) == LL_DMA_STREAM_5) || \ + ((STREAM) == LL_DMA_STREAM_6) || \ + ((STREAM) == LL_DMA_STREAM_7) || \ + ((STREAM) == LL_DMA_STREAM_ALL)))) + +#define IS_LL_DMA_FIFO_MODE_STATE(STATE) (((STATE) == LL_DMA_FIFOMODE_DISABLE ) || \ + ((STATE) == LL_DMA_FIFOMODE_ENABLE)) + +#define IS_LL_DMA_FIFO_THRESHOLD(THRESHOLD) (((THRESHOLD) == LL_DMA_FIFOTHRESHOLD_1_4) || \ + ((THRESHOLD) == LL_DMA_FIFOTHRESHOLD_1_2) || \ + ((THRESHOLD) == LL_DMA_FIFOTHRESHOLD_3_4) || \ + ((THRESHOLD) == LL_DMA_FIFOTHRESHOLD_FULL)) + +#define IS_LL_DMA_MEMORY_BURST(BURST) (((BURST) == LL_DMA_MBURST_SINGLE) || \ + ((BURST) == LL_DMA_MBURST_INC4) || \ + ((BURST) == LL_DMA_MBURST_INC8) || \ + ((BURST) == LL_DMA_MBURST_INC16)) + +#define IS_LL_DMA_PERIPHERAL_BURST(BURST) (((BURST) == LL_DMA_PBURST_SINGLE) || \ + ((BURST) == LL_DMA_PBURST_INC4) || \ + ((BURST) == LL_DMA_PBURST_INC8) || \ + ((BURST) == LL_DMA_PBURST_INC16)) + +/** + * @} + */ + +/* Private function prototypes -----------------------------------------------*/ + +/* Exported functions --------------------------------------------------------*/ +/** @addtogroup DMA_LL_Exported_Functions + * @{ + */ + +/** @addtogroup DMA_LL_EF_Init + * @{ + */ + +/** + * @brief De-initialize the DMA registers to their default reset values. + * @param DMAx DMAx Instance + * @param Stream This parameter can be one of the following values: + * @arg @ref LL_DMA_STREAM_0 + * @arg @ref LL_DMA_STREAM_1 + * @arg @ref LL_DMA_STREAM_2 + * @arg @ref LL_DMA_STREAM_3 + * @arg @ref LL_DMA_STREAM_4 + * @arg @ref LL_DMA_STREAM_5 + * @arg @ref LL_DMA_STREAM_6 + * @arg @ref LL_DMA_STREAM_7 + * @arg @ref LL_DMA_STREAM_ALL + * @retval An ErrorStatus enumeration value: + * - SUCCESS: DMA registers are de-initialized + * - ERROR: DMA registers are not de-initialized + */ +uint32_t LL_DMA_DeInit(DMA_TypeDef *DMAx, uint32_t Stream) +{ + DMA_Stream_TypeDef *tmp = (DMA_Stream_TypeDef *)DMA1_Stream0; + ErrorStatus status = SUCCESS; + + /* Check the DMA Instance DMAx and Stream parameters*/ + assert_param(IS_LL_DMA_ALL_STREAM_INSTANCE(DMAx, Stream)); + + if (Stream == LL_DMA_STREAM_ALL) + { + if (DMAx == DMA1) + { + /* Force reset of DMA clock */ + LL_AHB1_GRP1_ForceReset(LL_AHB1_GRP1_PERIPH_DMA1); + + /* Release reset of DMA clock */ + LL_AHB1_GRP1_ReleaseReset(LL_AHB1_GRP1_PERIPH_DMA1); + } + else if (DMAx == DMA2) + { + /* Force reset of DMA clock */ + LL_AHB1_GRP1_ForceReset(LL_AHB1_GRP1_PERIPH_DMA2); + + /* Release reset of DMA clock */ + LL_AHB1_GRP1_ReleaseReset(LL_AHB1_GRP1_PERIPH_DMA2); + } + else + { + status = ERROR; + } + } + else + { + /* Disable the selected Stream */ + LL_DMA_DisableStream(DMAx,Stream); + + /* Get the DMA Stream Instance */ + tmp = (DMA_Stream_TypeDef *)(__LL_DMA_GET_STREAM_INSTANCE(DMAx, Stream)); + + /* Reset DMAx_Streamy configuration register */ + LL_DMA_WriteReg(tmp, CR, 0U); + + /* Reset DMAx_Streamy remaining bytes register */ + LL_DMA_WriteReg(tmp, NDTR, 0U); + + /* Reset DMAx_Streamy peripheral address register */ + LL_DMA_WriteReg(tmp, PAR, 0U); + + /* Reset DMAx_Streamy memory address register */ + LL_DMA_WriteReg(tmp, M0AR, 0U); + + /* Reset DMAx_Streamy memory address register */ + LL_DMA_WriteReg(tmp, M1AR, 0U); + + /* Reset DMAx_Streamy FIFO control register */ + LL_DMA_WriteReg(tmp, FCR, 0x00000021U); + + /* Reset Channel register field for DMAx Stream*/ + LL_DMA_SetChannelSelection(DMAx, Stream, LL_DMA_CHANNEL_0); + + if(Stream == LL_DMA_STREAM_0) + { + /* Reset the Stream0 pending flags */ + DMAx->LIFCR = 0x0000003FU; + } + else if(Stream == LL_DMA_STREAM_1) + { + /* Reset the Stream1 pending flags */ + DMAx->LIFCR = 0x00000F40U; + } + else if(Stream == LL_DMA_STREAM_2) + { + /* Reset the Stream2 pending flags */ + DMAx->LIFCR = 0x003F0000U; + } + else if(Stream == LL_DMA_STREAM_3) + { + /* Reset the Stream3 pending flags */ + DMAx->LIFCR = 0x0F400000U; + } + else if(Stream == LL_DMA_STREAM_4) + { + /* Reset the Stream4 pending flags */ + DMAx->HIFCR = 0x0000003FU; + } + else if(Stream == LL_DMA_STREAM_5) + { + /* Reset the Stream5 pending flags */ + DMAx->HIFCR = 0x00000F40U; + } + else if(Stream == LL_DMA_STREAM_6) + { + /* Reset the Stream6 pending flags */ + DMAx->HIFCR = 0x003F0000U; + } + else if(Stream == LL_DMA_STREAM_7) + { + /* Reset the Stream7 pending flags */ + DMAx->HIFCR = 0x0F400000U; + } + else + { + status = ERROR; + } + } + + return status; +} + +/** + * @brief Initialize the DMA registers according to the specified parameters in DMA_InitStruct. + * @note To convert DMAx_Streamy Instance to DMAx Instance and Streamy, use helper macros : + * @arg @ref __LL_DMA_GET_INSTANCE + * @arg @ref __LL_DMA_GET_STREAM + * @param DMAx DMAx Instance + * @param Stream This parameter can be one of the following values: + * @arg @ref LL_DMA_STREAM_0 + * @arg @ref LL_DMA_STREAM_1 + * @arg @ref LL_DMA_STREAM_2 + * @arg @ref LL_DMA_STREAM_3 + * @arg @ref LL_DMA_STREAM_4 + * @arg @ref LL_DMA_STREAM_5 + * @arg @ref LL_DMA_STREAM_6 + * @arg @ref LL_DMA_STREAM_7 + * @param DMA_InitStruct pointer to a @ref LL_DMA_InitTypeDef structure. + * @retval An ErrorStatus enumeration value: + * - SUCCESS: DMA registers are initialized + * - ERROR: Not applicable + */ +uint32_t LL_DMA_Init(DMA_TypeDef *DMAx, uint32_t Stream, LL_DMA_InitTypeDef *DMA_InitStruct) +{ + /* Check the DMA Instance DMAx and Stream parameters*/ + assert_param(IS_LL_DMA_ALL_STREAM_INSTANCE(DMAx, Stream)); + + /* Check the DMA parameters from DMA_InitStruct */ + assert_param(IS_LL_DMA_DIRECTION(DMA_InitStruct->Direction)); + assert_param(IS_LL_DMA_MODE(DMA_InitStruct->Mode)); + assert_param(IS_LL_DMA_PERIPHINCMODE(DMA_InitStruct->PeriphOrM2MSrcIncMode)); + assert_param(IS_LL_DMA_MEMORYINCMODE(DMA_InitStruct->MemoryOrM2MDstIncMode)); + assert_param(IS_LL_DMA_PERIPHDATASIZE(DMA_InitStruct->PeriphOrM2MSrcDataSize)); + assert_param(IS_LL_DMA_MEMORYDATASIZE(DMA_InitStruct->MemoryOrM2MDstDataSize)); + assert_param(IS_LL_DMA_NBDATA(DMA_InitStruct->NbData)); + assert_param(IS_LL_DMA_CHANNEL(DMA_InitStruct->Channel)); + assert_param(IS_LL_DMA_PRIORITY(DMA_InitStruct->Priority)); + assert_param(IS_LL_DMA_FIFO_MODE_STATE(DMA_InitStruct->FIFOMode)); + /* Check the memory burst, peripheral burst and FIFO threshold parameters only + when FIFO mode is enabled */ + if(DMA_InitStruct->FIFOMode != LL_DMA_FIFOMODE_DISABLE) + { + assert_param(IS_LL_DMA_FIFO_THRESHOLD(DMA_InitStruct->FIFOThreshold)); + assert_param(IS_LL_DMA_MEMORY_BURST(DMA_InitStruct->MemBurst)); + assert_param(IS_LL_DMA_PERIPHERAL_BURST(DMA_InitStruct->PeriphBurst)); + } + + /*---------------------------- DMAx SxCR Configuration ------------------------ + * Configure DMAx_Streamy: data transfer direction, data transfer mode, + * peripheral and memory increment mode, + * data size alignment and priority level with parameters : + * - Direction: DMA_SxCR_DIR[1:0] bits + * - Mode: DMA_SxCR_CIRC bit + * - PeriphOrM2MSrcIncMode: DMA_SxCR_PINC bit + * - MemoryOrM2MDstIncMode: DMA_SxCR_MINC bit + * - PeriphOrM2MSrcDataSize: DMA_SxCR_PSIZE[1:0] bits + * - MemoryOrM2MDstDataSize: DMA_SxCR_MSIZE[1:0] bits + * - Priority: DMA_SxCR_PL[1:0] bits + */ + LL_DMA_ConfigTransfer(DMAx, Stream, DMA_InitStruct->Direction | \ + DMA_InitStruct->Mode | \ + DMA_InitStruct->PeriphOrM2MSrcIncMode | \ + DMA_InitStruct->MemoryOrM2MDstIncMode | \ + DMA_InitStruct->PeriphOrM2MSrcDataSize | \ + DMA_InitStruct->MemoryOrM2MDstDataSize | \ + DMA_InitStruct->Priority + ); + + if(DMA_InitStruct->FIFOMode != LL_DMA_FIFOMODE_DISABLE) + { + /*---------------------------- DMAx SxFCR Configuration ------------------------ + * Configure DMAx_Streamy: fifo mode and fifo threshold with parameters : + * - FIFOMode: DMA_SxFCR_DMDIS bit + * - FIFOThreshold: DMA_SxFCR_FTH[1:0] bits + */ + LL_DMA_ConfigFifo(DMAx, Stream, DMA_InitStruct->FIFOMode, DMA_InitStruct->FIFOThreshold); + + /*---------------------------- DMAx SxCR Configuration -------------------------- + * Configure DMAx_Streamy: memory burst transfer with parameters : + * - MemBurst: DMA_SxCR_MBURST[1:0] bits + */ + LL_DMA_SetMemoryBurstxfer(DMAx,Stream,DMA_InitStruct->MemBurst); + + /*---------------------------- DMAx SxCR Configuration -------------------------- + * Configure DMAx_Streamy: peripheral burst transfer with parameters : + * - PeriphBurst: DMA_SxCR_PBURST[1:0] bits + */ + LL_DMA_SetPeriphBurstxfer(DMAx,Stream,DMA_InitStruct->PeriphBurst); + } + + /*-------------------------- DMAx SxM0AR Configuration -------------------------- + * Configure the memory or destination base address with parameter : + * - MemoryOrM2MDstAddress: DMA_SxM0AR_M0A[31:0] bits + */ + LL_DMA_SetMemoryAddress(DMAx, Stream, DMA_InitStruct->MemoryOrM2MDstAddress); + + /*-------------------------- DMAx SxPAR Configuration --------------------------- + * Configure the peripheral or source base address with parameter : + * - PeriphOrM2MSrcAddress: DMA_SxPAR_PA[31:0] bits + */ + LL_DMA_SetPeriphAddress(DMAx, Stream, DMA_InitStruct->PeriphOrM2MSrcAddress); + + /*--------------------------- DMAx SxNDTR Configuration ------------------------- + * Configure the peripheral base address with parameter : + * - NbData: DMA_SxNDT[15:0] bits + */ + LL_DMA_SetDataLength(DMAx, Stream, DMA_InitStruct->NbData); + + /*--------------------------- DMA SxCR_CHSEL Configuration ---------------------- + * Configure the peripheral base address with parameter : + * - PeriphRequest: DMA_SxCR_CHSEL[2:0] bits + */ + LL_DMA_SetChannelSelection(DMAx, Stream, DMA_InitStruct->Channel); + + return SUCCESS; +} + +/** + * @brief Set each @ref LL_DMA_InitTypeDef field to default value. + * @param DMA_InitStruct Pointer to a @ref LL_DMA_InitTypeDef structure. + * @retval None + */ +void LL_DMA_StructInit(LL_DMA_InitTypeDef *DMA_InitStruct) +{ + /* Set DMA_InitStruct fields to default values */ + DMA_InitStruct->PeriphOrM2MSrcAddress = 0x00000000U; + DMA_InitStruct->MemoryOrM2MDstAddress = 0x00000000U; + DMA_InitStruct->Direction = LL_DMA_DIRECTION_PERIPH_TO_MEMORY; + DMA_InitStruct->Mode = LL_DMA_MODE_NORMAL; + DMA_InitStruct->PeriphOrM2MSrcIncMode = LL_DMA_PERIPH_NOINCREMENT; + DMA_InitStruct->MemoryOrM2MDstIncMode = LL_DMA_MEMORY_NOINCREMENT; + DMA_InitStruct->PeriphOrM2MSrcDataSize = LL_DMA_PDATAALIGN_BYTE; + DMA_InitStruct->MemoryOrM2MDstDataSize = LL_DMA_MDATAALIGN_BYTE; + DMA_InitStruct->NbData = 0x00000000U; + DMA_InitStruct->Channel = LL_DMA_CHANNEL_0; + DMA_InitStruct->Priority = LL_DMA_PRIORITY_LOW; + DMA_InitStruct->FIFOMode = LL_DMA_FIFOMODE_DISABLE; + DMA_InitStruct->FIFOThreshold = LL_DMA_FIFOTHRESHOLD_1_4; + DMA_InitStruct->MemBurst = LL_DMA_MBURST_SINGLE; + DMA_InitStruct->PeriphBurst = LL_DMA_PBURST_SINGLE; +} + +/** + * @} + */ + +/** + * @} + */ + +/** + * @} + */ + +#endif /* DMA1 || DMA2 */ + +/** + * @} + */ + +#endif /* USE_FULL_LL_DRIVER */ + +/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ +