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view Common/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_dma.c @ 794:bb37d4f3e50e

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Restructure UART based sensor handling: In the previous version every UART sensor instance had its own protocol handling instance (requests, timeout, errors). With the introduction of the multiplexer these functionalities had to be harmonized. E.g. only one errorhandling which is applied to all sensors. In the new structure the sensor communication is split into one function which takes care for the control needs of a sensor and one function which handles the incoming data. The functions behalf the same independend if the sensor are connected to multiplexer or directly to the OSTC. Second big change in the external sensor concepts is that the data processing is no longer focussed at the three existing ADC channels. Every external sensor (up to 3 ADC and 4 UART) sensor has its own instance. If the ADC slots are not in use then they may be used for visiualization of UART sensors by creating a mirror instance but this is no longer a must.
author Ideenmodellierer
date Mon, 31 Jul 2023 19:46:29 +0200
parents c78bcbd5deda
children
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/**
  ******************************************************************************
  * @file    stm32f4xx_ll_dma.c
  * @author  MCD Application Team
  * @brief   DMA LL module driver.
  ******************************************************************************
  * @attention
  *
  * <h2><center>&copy; 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****/