diff options
Diffstat (limited to 'Drivers/STM32H7xx_HAL_Driver/Src/stm32h7xx_hal_dma.c')
| -rw-r--r-- | Drivers/STM32H7xx_HAL_Driver/Src/stm32h7xx_hal_dma.c | 2062 |
1 files changed, 2062 insertions, 0 deletions
diff --git a/Drivers/STM32H7xx_HAL_Driver/Src/stm32h7xx_hal_dma.c b/Drivers/STM32H7xx_HAL_Driver/Src/stm32h7xx_hal_dma.c new file mode 100644 index 0000000..0b422cc --- /dev/null +++ b/Drivers/STM32H7xx_HAL_Driver/Src/stm32h7xx_hal_dma.c @@ -0,0 +1,2062 @@ +/**
+ ******************************************************************************
+ * @file stm32h7xx_hal_dma.c
+ * @author MCD Application Team
+ * @brief DMA HAL module driver.
+ * This file provides firmware functions to manage the following
+ * functionalities of the Direct Memory Access (DMA) peripheral:
+ * + Initialization and de-initialization functions
+ * + IO operation functions
+ * + Peripheral State and errors functions
+ ******************************************************************************
+ * @attention
+ *
+ * Copyright (c) 2017 STMicroelectronics.
+ * All rights reserved.
+ *
+ * This software is licensed under terms that can be found in the LICENSE file
+ * in the root directory of this software component.
+ * If no LICENSE file comes with this software, it is provided AS-IS.
+ *
+ ******************************************************************************
+ @verbatim
+ ==============================================================================
+ ##### How to use this driver #####
+ ==============================================================================
+ [..]
+ (#) Enable and configure the peripheral to be connected to the DMA Stream
+ (except for internal SRAM/FLASH memories: no initialization is
+ necessary) please refer to Reference manual for connection between peripherals
+ and DMA requests .
+
+ (#) For a given Stream, program the required configuration through the following parameters:
+ Transfer Direction, Source and Destination data formats,
+ Circular, Normal or peripheral flow control mode, Stream Priority level,
+ Source and Destination Increment mode, FIFO mode and its Threshold (if needed),
+ Burst mode for Source and/or Destination (if needed) using HAL_DMA_Init() function.
+
+ *** Polling mode IO operation ***
+ =================================
+ [..]
+ (+) Use HAL_DMA_Start() to start DMA transfer after the configuration of Source
+ address and destination address and the Length of data to be transferred
+ (+) Use HAL_DMA_PollForTransfer() to poll for the end of current transfer, in this
+ case a fixed Timeout can be configured by User depending from his application.
+
+ *** Interrupt mode IO operation ***
+ ===================================
+ [..]
+ (+) Configure the DMA interrupt priority using HAL_NVIC_SetPriority()
+ (+) Enable the DMA IRQ handler using HAL_NVIC_EnableIRQ()
+ (+) Use HAL_DMA_Start_IT() to start DMA transfer after the configuration of
+ Source address and destination address and the Length of data to be transferred. In this
+ case the DMA interrupt is configured
+ (+) Use HAL_DMA_IRQHandler() called under DMA_IRQHandler() Interrupt subroutine
+ (+) At the end of data transfer HAL_DMA_IRQHandler() function is executed and user can
+ add his own function by customization of function pointer XferCpltCallback and
+ XferErrorCallback (i.e a member of DMA handle structure).
+ [..]
+ (#) Use HAL_DMA_GetState() function to return the DMA state and HAL_DMA_GetError() in case of error
+ detection.
+
+ (#) Use HAL_DMA_Abort() function to abort the current transfer
+
+ -@- In Memory-to-Memory transfer mode, Circular mode is not allowed.
+
+ -@- The FIFO is used mainly to reduce bus usage and to allow data packing/unpacking: it is
+ possible to set different Data Sizes for the Peripheral and the Memory (ie. you can set
+ Half-Word data size for the peripheral to access its data register and set Word data size
+ for the Memory to gain in access time. Each two half words will be packed and written in
+ a single access to a Word in the Memory).
+
+ -@- When FIFO is disabled, it is not allowed to configure different Data Sizes for Source
+ and Destination. In this case the Peripheral Data Size will be applied to both Source
+ and Destination.
+
+ *** DMA HAL driver macros list ***
+ =============================================
+ [..]
+ Below the list of most used macros in DMA HAL driver.
+
+ (+) __HAL_DMA_ENABLE: Enable the specified DMA Stream.
+ (+) __HAL_DMA_DISABLE: Disable the specified DMA Stream.
+ (+) __HAL_DMA_GET_FS: Return the current DMA Stream FIFO filled level.
+ (+) __HAL_DMA_ENABLE_IT: Enable the specified DMA Stream interrupts.
+ (+) __HAL_DMA_DISABLE_IT: Disable the specified DMA Stream interrupts.
+ (+) __HAL_DMA_GET_IT_SOURCE: Check whether the specified DMA Stream interrupt has occurred or not.
+
+ [..]
+ (@) You can refer to the DMA HAL driver header file for more useful macros.
+
+ @endverbatim
+ */
+
+/* Includes ------------------------------------------------------------------*/
+#include "stm32h7xx_hal.h"
+
+/** @addtogroup STM32H7xx_HAL_Driver
+ * @{
+ */
+
+/** @defgroup DMA DMA
+ * @brief DMA HAL module driver
+ * @{
+ */
+
+#ifdef HAL_DMA_MODULE_ENABLED
+
+/* Private types -------------------------------------------------------------*/
+/** @addtogroup DMA_Private_Types
+ * @{
+ */
+typedef struct
+{
+ __IO uint32_t ISR; /*!< DMA interrupt status register */
+ __IO uint32_t Reserved0;
+ __IO uint32_t IFCR; /*!< DMA interrupt flag clear register */
+} DMA_Base_Registers;
+
+typedef struct
+{
+ __IO uint32_t ISR; /*!< BDMA interrupt status register */
+ __IO uint32_t IFCR; /*!< BDMA interrupt flag clear register */
+} BDMA_Base_Registers;
+/**
+ * @}
+ */
+
+/* Private variables ---------------------------------------------------------*/
+/* Private constants ---------------------------------------------------------*/
+/** @addtogroup DMA_Private_Constants
+ * @{
+ */
+#define HAL_TIMEOUT_DMA_ABORT (5U) /* 5 ms */
+
+#define BDMA_PERIPH_TO_MEMORY (0x00000000U) /*!< Peripheral to memory direction */
+#define BDMA_MEMORY_TO_PERIPH ((uint32_t)BDMA_CCR_DIR) /*!< Memory to peripheral direction */
+#define BDMA_MEMORY_TO_MEMORY ((uint32_t)BDMA_CCR_MEM2MEM) /*!< Memory to memory direction */
+
+/* DMA to BDMA conversion */
+#define DMA_TO_BDMA_DIRECTION(__DMA_DIRECTION__) (((__DMA_DIRECTION__) == DMA_MEMORY_TO_PERIPH)? BDMA_MEMORY_TO_PERIPH: \
+ ((__DMA_DIRECTION__) == DMA_MEMORY_TO_MEMORY)? BDMA_MEMORY_TO_MEMORY: \
+ BDMA_PERIPH_TO_MEMORY)
+
+#define DMA_TO_BDMA_PERIPHERAL_INC(__DMA_PERIPHERAL_INC__) ((__DMA_PERIPHERAL_INC__) >> 3U)
+#define DMA_TO_BDMA_MEMORY_INC(__DMA_MEMORY_INC__) ((__DMA_MEMORY_INC__) >> 3U)
+
+#define DMA_TO_BDMA_PDATA_SIZE(__DMA_PDATA_SIZE__) ((__DMA_PDATA_SIZE__) >> 3U)
+#define DMA_TO_BDMA_MDATA_SIZE(__DMA_MDATA_SIZE__) ((__DMA_MDATA_SIZE__) >> 3U)
+
+#define DMA_TO_BDMA_MODE(__DMA_MODE__) ((__DMA_MODE__) >> 3U)
+
+#define DMA_TO_BDMA_PRIORITY(__DMA_PRIORITY__) ((__DMA_PRIORITY__) >> 4U)
+
+#if defined(UART9)
+#define IS_DMA_UART_USART_REQUEST(__REQUEST__) ((((__REQUEST__) >= DMA_REQUEST_USART1_RX) && ((__REQUEST__) <= DMA_REQUEST_USART3_TX)) || \
+ (((__REQUEST__) >= DMA_REQUEST_UART4_RX) && ((__REQUEST__) <= DMA_REQUEST_UART5_TX )) || \
+ (((__REQUEST__) >= DMA_REQUEST_USART6_RX) && ((__REQUEST__) <= DMA_REQUEST_USART6_TX)) || \
+ (((__REQUEST__) >= DMA_REQUEST_UART7_RX) && ((__REQUEST__) <= DMA_REQUEST_UART8_TX )) || \
+ (((__REQUEST__) >= DMA_REQUEST_UART9_RX) && ((__REQUEST__) <= DMA_REQUEST_USART10_TX )))
+#else
+#define IS_DMA_UART_USART_REQUEST(__REQUEST__) ((((__REQUEST__) >= DMA_REQUEST_USART1_RX) && ((__REQUEST__) <= DMA_REQUEST_USART3_TX)) || \
+ (((__REQUEST__) >= DMA_REQUEST_UART4_RX) && ((__REQUEST__) <= DMA_REQUEST_UART5_TX )) || \
+ (((__REQUEST__) >= DMA_REQUEST_USART6_RX) && ((__REQUEST__) <= DMA_REQUEST_USART6_TX)) || \
+ (((__REQUEST__) >= DMA_REQUEST_UART7_RX) && ((__REQUEST__) <= DMA_REQUEST_UART8_TX )))
+
+#endif
+/**
+ * @}
+ */
+/* Private macros ------------------------------------------------------------*/
+/* Private functions ---------------------------------------------------------*/
+/** @addtogroup DMA_Private_Functions
+ * @{
+ */
+static void DMA_SetConfig(DMA_HandleTypeDef *hdma, uint32_t SrcAddress, uint32_t DstAddress, uint32_t DataLength);
+static uint32_t DMA_CalcBaseAndBitshift(DMA_HandleTypeDef *hdma);
+static HAL_StatusTypeDef DMA_CheckFifoParam(DMA_HandleTypeDef *hdma);
+static void DMA_CalcDMAMUXChannelBaseAndMask(DMA_HandleTypeDef *hdma);
+static void DMA_CalcDMAMUXRequestGenBaseAndMask(DMA_HandleTypeDef *hdma);
+
+/**
+ * @}
+ */
+
+/* Exported functions ---------------------------------------------------------*/
+/** @addtogroup DMA_Exported_Functions
+ * @{
+ */
+
+/** @addtogroup DMA_Exported_Functions_Group1
+ *
+@verbatim
+ ===============================================================================
+ ##### Initialization and de-initialization functions #####
+ ===============================================================================
+ [..]
+ This section provides functions allowing to initialize the DMA Stream source
+ and destination incrementation and data sizes, transfer direction,
+ circular/normal mode selection, memory-to-memory mode selection and Stream priority value.
+ [..]
+ The HAL_DMA_Init() function follows the DMA configuration procedures as described in
+ reference manual.
+ The HAL_DMA_DeInit function allows to deinitialize the DMA stream.
+
+@endverbatim
+ * @{
+ */
+
+/**
+ * @brief Initialize the DMA according to the specified
+ * parameters in the DMA_InitTypeDef and create the associated handle.
+ * @param hdma: Pointer to a DMA_HandleTypeDef structure that contains
+ * the configuration information for the specified DMA Stream.
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_DMA_Init(DMA_HandleTypeDef *hdma)
+{
+ uint32_t registerValue;
+ uint32_t tickstart = HAL_GetTick();
+ DMA_Base_Registers *regs_dma;
+ BDMA_Base_Registers *regs_bdma;
+
+ /* Check the DMA peripheral handle */
+ if(hdma == NULL)
+ {
+ return HAL_ERROR;
+ }
+
+ /* Check the parameters */
+ assert_param(IS_DMA_ALL_INSTANCE(hdma->Instance));
+ assert_param(IS_DMA_DIRECTION(hdma->Init.Direction));
+ assert_param(IS_DMA_PERIPHERAL_INC_STATE(hdma->Init.PeriphInc));
+ assert_param(IS_DMA_MEMORY_INC_STATE(hdma->Init.MemInc));
+ assert_param(IS_DMA_PERIPHERAL_DATA_SIZE(hdma->Init.PeriphDataAlignment));
+ assert_param(IS_DMA_MEMORY_DATA_SIZE(hdma->Init.MemDataAlignment));
+ assert_param(IS_DMA_MODE(hdma->Init.Mode));
+ assert_param(IS_DMA_PRIORITY(hdma->Init.Priority));
+
+ if(IS_DMA_STREAM_INSTANCE(hdma->Instance) != 0U) /* DMA1 or DMA2 instance */
+ {
+ assert_param(IS_DMA_REQUEST(hdma->Init.Request));
+ assert_param(IS_DMA_FIFO_MODE_STATE(hdma->Init.FIFOMode));
+ /* Check the memory burst, peripheral burst and FIFO threshold parameters only
+ when FIFO mode is enabled */
+ if(hdma->Init.FIFOMode != DMA_FIFOMODE_DISABLE)
+ {
+ assert_param(IS_DMA_FIFO_THRESHOLD(hdma->Init.FIFOThreshold));
+ assert_param(IS_DMA_MEMORY_BURST(hdma->Init.MemBurst));
+ assert_param(IS_DMA_PERIPHERAL_BURST(hdma->Init.PeriphBurst));
+ }
+
+ /* Change DMA peripheral state */
+ hdma->State = HAL_DMA_STATE_BUSY;
+
+ /* Allocate lock resource */
+ __HAL_UNLOCK(hdma);
+
+ /* Disable the peripheral */
+ __HAL_DMA_DISABLE(hdma);
+
+ /* Check if the DMA Stream is effectively disabled */
+ while((((DMA_Stream_TypeDef *)hdma->Instance)->CR & DMA_SxCR_EN) != 0U)
+ {
+ /* Check for the Timeout */
+ if((HAL_GetTick() - tickstart ) > HAL_TIMEOUT_DMA_ABORT)
+ {
+ /* Update error code */
+ hdma->ErrorCode = HAL_DMA_ERROR_TIMEOUT;
+
+ /* Change the DMA state */
+ hdma->State = HAL_DMA_STATE_ERROR;
+
+ return HAL_ERROR;
+ }
+ }
+
+ /* Get the CR register value */
+ registerValue = ((DMA_Stream_TypeDef *)hdma->Instance)->CR;
+
+ /* Clear CHSEL, MBURST, PBURST, PL, MSIZE, PSIZE, MINC, PINC, CIRC, DIR, CT and DBM bits */
+ registerValue &= ((uint32_t)~(DMA_SxCR_MBURST | DMA_SxCR_PBURST | \
+ DMA_SxCR_PL | DMA_SxCR_MSIZE | DMA_SxCR_PSIZE | \
+ DMA_SxCR_MINC | DMA_SxCR_PINC | DMA_SxCR_CIRC | \
+ DMA_SxCR_DIR | DMA_SxCR_CT | DMA_SxCR_DBM));
+
+ /* Prepare the DMA Stream configuration */
+ registerValue |= hdma->Init.Direction |
+ hdma->Init.PeriphInc | hdma->Init.MemInc |
+ hdma->Init.PeriphDataAlignment | hdma->Init.MemDataAlignment |
+ hdma->Init.Mode | hdma->Init.Priority;
+
+ /* the Memory burst and peripheral burst are not used when the FIFO is disabled */
+ if(hdma->Init.FIFOMode == DMA_FIFOMODE_ENABLE)
+ {
+ /* Get memory burst and peripheral burst */
+ registerValue |= hdma->Init.MemBurst | hdma->Init.PeriphBurst;
+ }
+
+ /* Work around for Errata 2.22: UART/USART- DMA transfer lock: DMA stream could be
+ lock when transferring data to/from USART/UART */
+#if (STM32H7_DEV_ID == 0x450UL)
+ if((DBGMCU->IDCODE & 0xFFFF0000U) >= 0x20000000U)
+ {
+#endif /* STM32H7_DEV_ID == 0x450UL */
+ if(IS_DMA_UART_USART_REQUEST(hdma->Init.Request) != 0U)
+ {
+ registerValue |= DMA_SxCR_TRBUFF;
+ }
+#if (STM32H7_DEV_ID == 0x450UL)
+ }
+#endif /* STM32H7_DEV_ID == 0x450UL */
+
+ /* Write to DMA Stream CR register */
+ ((DMA_Stream_TypeDef *)hdma->Instance)->CR = registerValue;
+
+ /* Get the FCR register value */
+ registerValue = ((DMA_Stream_TypeDef *)hdma->Instance)->FCR;
+
+ /* Clear Direct mode and FIFO threshold bits */
+ registerValue &= (uint32_t)~(DMA_SxFCR_DMDIS | DMA_SxFCR_FTH);
+
+ /* Prepare the DMA Stream FIFO configuration */
+ registerValue |= hdma->Init.FIFOMode;
+
+ /* the FIFO threshold is not used when the FIFO mode is disabled */
+ if(hdma->Init.FIFOMode == DMA_FIFOMODE_ENABLE)
+ {
+ /* Get the FIFO threshold */
+ registerValue |= hdma->Init.FIFOThreshold;
+
+ /* Check compatibility between FIFO threshold level and size of the memory burst */
+ /* for INCR4, INCR8, INCR16 */
+ if(hdma->Init.MemBurst != DMA_MBURST_SINGLE)
+ {
+ if (DMA_CheckFifoParam(hdma) != HAL_OK)
+ {
+ /* Update error code */
+ hdma->ErrorCode = HAL_DMA_ERROR_PARAM;
+
+ /* Change the DMA state */
+ hdma->State = HAL_DMA_STATE_READY;
+
+ return HAL_ERROR;
+ }
+ }
+ }
+
+ /* Write to DMA Stream FCR */
+ ((DMA_Stream_TypeDef *)hdma->Instance)->FCR = registerValue;
+
+ /* Initialize StreamBaseAddress and StreamIndex parameters to be used to calculate
+ DMA steam Base Address needed by HAL_DMA_IRQHandler() and HAL_DMA_PollForTransfer() */
+ regs_dma = (DMA_Base_Registers *)DMA_CalcBaseAndBitshift(hdma);
+
+ /* Clear all interrupt flags */
+ regs_dma->IFCR = 0x3FUL << (hdma->StreamIndex & 0x1FU);
+ }
+ else if(IS_BDMA_CHANNEL_INSTANCE(hdma->Instance) != 0U) /* BDMA instance(s) */
+ {
+ if(IS_BDMA_CHANNEL_DMAMUX_INSTANCE(hdma->Instance) != 0U)
+ {
+ /* Check the request parameter */
+ assert_param(IS_BDMA_REQUEST(hdma->Init.Request));
+ }
+
+ /* Change DMA peripheral state */
+ hdma->State = HAL_DMA_STATE_BUSY;
+
+ /* Allocate lock resource */
+ __HAL_UNLOCK(hdma);
+
+ /* Get the CR register value */
+ registerValue = ((BDMA_Channel_TypeDef *)hdma->Instance)->CCR;
+
+ /* Clear PL, MSIZE, PSIZE, MINC, PINC, CIRC, DIR, MEM2MEM, DBM and CT bits */
+ registerValue &= ((uint32_t)~(BDMA_CCR_PL | BDMA_CCR_MSIZE | BDMA_CCR_PSIZE | \
+ BDMA_CCR_MINC | BDMA_CCR_PINC | BDMA_CCR_CIRC | \
+ BDMA_CCR_DIR | BDMA_CCR_MEM2MEM | BDMA_CCR_DBM | \
+ BDMA_CCR_CT));
+
+ /* Prepare the DMA Channel configuration */
+ registerValue |= DMA_TO_BDMA_DIRECTION(hdma->Init.Direction) |
+ DMA_TO_BDMA_PERIPHERAL_INC(hdma->Init.PeriphInc) |
+ DMA_TO_BDMA_MEMORY_INC(hdma->Init.MemInc) |
+ DMA_TO_BDMA_PDATA_SIZE(hdma->Init.PeriphDataAlignment) |
+ DMA_TO_BDMA_MDATA_SIZE(hdma->Init.MemDataAlignment) |
+ DMA_TO_BDMA_MODE(hdma->Init.Mode) |
+ DMA_TO_BDMA_PRIORITY(hdma->Init.Priority);
+
+ /* Write to DMA Channel CR register */
+ ((BDMA_Channel_TypeDef *)hdma->Instance)->CCR = registerValue;
+
+ /* calculation of the channel index */
+ hdma->StreamIndex = (((uint32_t)((uint32_t*)hdma->Instance) - (uint32_t)BDMA_Channel0) / ((uint32_t)BDMA_Channel1 - (uint32_t)BDMA_Channel0)) << 2U;
+
+ /* Initialize StreamBaseAddress and StreamIndex parameters to be used to calculate
+ DMA steam Base Address needed by HAL_DMA_IRQHandler() and HAL_DMA_PollForTransfer() */
+ regs_bdma = (BDMA_Base_Registers *)DMA_CalcBaseAndBitshift(hdma);
+
+ /* Clear all interrupt flags */
+ regs_bdma->IFCR = ((BDMA_IFCR_CGIF0) << (hdma->StreamIndex & 0x1FU));
+ }
+ else
+ {
+ hdma->ErrorCode = HAL_DMA_ERROR_PARAM;
+ hdma->State = HAL_DMA_STATE_ERROR;
+
+ return HAL_ERROR;
+ }
+
+ if(IS_DMA_DMAMUX_ALL_INSTANCE(hdma->Instance) != 0U) /* No DMAMUX available for BDMA1 */
+ {
+ /* Initialize parameters for DMAMUX channel :
+ DMAmuxChannel, DMAmuxChannelStatus and DMAmuxChannelStatusMask
+ */
+ DMA_CalcDMAMUXChannelBaseAndMask(hdma);
+
+ if(hdma->Init.Direction == DMA_MEMORY_TO_MEMORY)
+ {
+ /* if memory to memory force the request to 0*/
+ hdma->Init.Request = DMA_REQUEST_MEM2MEM;
+ }
+
+ /* Set peripheral request to DMAMUX channel */
+ hdma->DMAmuxChannel->CCR = (hdma->Init.Request & DMAMUX_CxCR_DMAREQ_ID);
+
+ /* Clear the DMAMUX synchro overrun flag */
+ hdma->DMAmuxChannelStatus->CFR = hdma->DMAmuxChannelStatusMask;
+
+ /* Initialize parameters for DMAMUX request generator :
+ if the DMA request is DMA_REQUEST_GENERATOR0 to DMA_REQUEST_GENERATOR7
+ */
+ if((hdma->Init.Request >= DMA_REQUEST_GENERATOR0) && (hdma->Init.Request <= DMA_REQUEST_GENERATOR7))
+ {
+ /* Initialize parameters for DMAMUX request generator :
+ DMAmuxRequestGen, DMAmuxRequestGenStatus and DMAmuxRequestGenStatusMask */
+ DMA_CalcDMAMUXRequestGenBaseAndMask(hdma);
+
+ /* Reset the DMAMUX request generator register */
+ hdma->DMAmuxRequestGen->RGCR = 0U;
+
+ /* Clear the DMAMUX request generator overrun flag */
+ hdma->DMAmuxRequestGenStatus->RGCFR = hdma->DMAmuxRequestGenStatusMask;
+ }
+ else
+ {
+ hdma->DMAmuxRequestGen = 0U;
+ hdma->DMAmuxRequestGenStatus = 0U;
+ hdma->DMAmuxRequestGenStatusMask = 0U;
+ }
+ }
+
+ /* Initialize the error code */
+ hdma->ErrorCode = HAL_DMA_ERROR_NONE;
+
+ /* Initialize the DMA state */
+ hdma->State = HAL_DMA_STATE_READY;
+
+ return HAL_OK;
+}
+
+/**
+ * @brief DeInitializes the DMA peripheral
+ * @param hdma: pointer to a DMA_HandleTypeDef structure that contains
+ * the configuration information for the specified DMA Stream.
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_DMA_DeInit(DMA_HandleTypeDef *hdma)
+{
+ DMA_Base_Registers *regs_dma;
+ BDMA_Base_Registers *regs_bdma;
+
+ /* Check the DMA peripheral handle */
+ if(hdma == NULL)
+ {
+ return HAL_ERROR;
+ }
+
+ /* Disable the selected DMA Streamx */
+ __HAL_DMA_DISABLE(hdma);
+
+ if(IS_DMA_STREAM_INSTANCE(hdma->Instance) != 0U) /* DMA1 or DMA2 instance */
+ {
+ /* Reset DMA Streamx control register */
+ ((DMA_Stream_TypeDef *)hdma->Instance)->CR = 0U;
+
+ /* Reset DMA Streamx number of data to transfer register */
+ ((DMA_Stream_TypeDef *)hdma->Instance)->NDTR = 0U;
+
+ /* Reset DMA Streamx peripheral address register */
+ ((DMA_Stream_TypeDef *)hdma->Instance)->PAR = 0U;
+
+ /* Reset DMA Streamx memory 0 address register */
+ ((DMA_Stream_TypeDef *)hdma->Instance)->M0AR = 0U;
+
+ /* Reset DMA Streamx memory 1 address register */
+ ((DMA_Stream_TypeDef *)hdma->Instance)->M1AR = 0U;
+
+ /* Reset DMA Streamx FIFO control register */
+ ((DMA_Stream_TypeDef *)hdma->Instance)->FCR = (uint32_t)0x00000021U;
+
+ /* Get DMA steam Base Address */
+ regs_dma = (DMA_Base_Registers *)DMA_CalcBaseAndBitshift(hdma);
+
+ /* Clear all interrupt flags at correct offset within the register */
+ regs_dma->IFCR = 0x3FUL << (hdma->StreamIndex & 0x1FU);
+ }
+ else if(IS_BDMA_CHANNEL_INSTANCE(hdma->Instance) != 0U) /* BDMA instance(s) */
+ {
+ /* Reset DMA Channel control register */
+ ((BDMA_Channel_TypeDef *)hdma->Instance)->CCR = 0U;
+
+ /* Reset DMA Channel Number of Data to Transfer register */
+ ((BDMA_Channel_TypeDef *)hdma->Instance)->CNDTR = 0U;
+
+ /* Reset DMA Channel peripheral address register */
+ ((BDMA_Channel_TypeDef *)hdma->Instance)->CPAR = 0U;
+
+ /* Reset DMA Channel memory 0 address register */
+ ((BDMA_Channel_TypeDef *)hdma->Instance)->CM0AR = 0U;
+
+ /* Reset DMA Channel memory 1 address register */
+ ((BDMA_Channel_TypeDef *)hdma->Instance)->CM1AR = 0U;
+
+ /* Get DMA steam Base Address */
+ regs_bdma = (BDMA_Base_Registers *)DMA_CalcBaseAndBitshift(hdma);
+
+ /* Clear all interrupt flags at correct offset within the register */
+ regs_bdma->IFCR = ((BDMA_IFCR_CGIF0) << (hdma->StreamIndex & 0x1FU));
+ }
+ else
+ {
+ /* Return error status */
+ return HAL_ERROR;
+ }
+
+#if defined (BDMA1) /* No DMAMUX available for BDMA1 available on STM32H7Ax/Bx devices only */
+ if(IS_DMA_DMAMUX_ALL_INSTANCE(hdma->Instance) != 0U) /* No DMAMUX available for BDMA1 */
+#endif /* BDMA1 */
+ {
+ /* Initialize parameters for DMAMUX channel :
+ DMAmuxChannel, DMAmuxChannelStatus and DMAmuxChannelStatusMask */
+ DMA_CalcDMAMUXChannelBaseAndMask(hdma);
+
+ if(hdma->DMAmuxChannel != 0U)
+ {
+ /* Resett he DMAMUX channel that corresponds to the DMA stream */
+ hdma->DMAmuxChannel->CCR = 0U;
+
+ /* Clear the DMAMUX synchro overrun flag */
+ hdma->DMAmuxChannelStatus->CFR = hdma->DMAmuxChannelStatusMask;
+ }
+
+ if((hdma->Init.Request >= DMA_REQUEST_GENERATOR0) && (hdma->Init.Request <= DMA_REQUEST_GENERATOR7))
+ {
+ /* Initialize parameters for DMAMUX request generator :
+ DMAmuxRequestGen, DMAmuxRequestGenStatus and DMAmuxRequestGenStatusMask */
+ DMA_CalcDMAMUXRequestGenBaseAndMask(hdma);
+
+ /* Reset the DMAMUX request generator register */
+ hdma->DMAmuxRequestGen->RGCR = 0U;
+
+ /* Clear the DMAMUX request generator overrun flag */
+ hdma->DMAmuxRequestGenStatus->RGCFR = hdma->DMAmuxRequestGenStatusMask;
+ }
+
+ hdma->DMAmuxRequestGen = 0U;
+ hdma->DMAmuxRequestGenStatus = 0U;
+ hdma->DMAmuxRequestGenStatusMask = 0U;
+ }
+
+
+ /* Clean callbacks */
+ hdma->XferCpltCallback = NULL;
+ hdma->XferHalfCpltCallback = NULL;
+ hdma->XferM1CpltCallback = NULL;
+ hdma->XferM1HalfCpltCallback = NULL;
+ hdma->XferErrorCallback = NULL;
+ hdma->XferAbortCallback = NULL;
+
+ /* Initialize the error code */
+ hdma->ErrorCode = HAL_DMA_ERROR_NONE;
+
+ /* Initialize the DMA state */
+ hdma->State = HAL_DMA_STATE_RESET;
+
+ /* Release Lock */
+ __HAL_UNLOCK(hdma);
+
+ return HAL_OK;
+}
+
+/**
+ * @}
+ */
+
+/** @addtogroup DMA_Exported_Functions_Group2
+ *
+@verbatim
+ ===============================================================================
+ ##### IO operation functions #####
+ ===============================================================================
+ [..] This section provides functions allowing to:
+ (+) Configure the source, destination address and data length and Start DMA transfer
+ (+) Configure the source, destination address and data length and
+ Start DMA transfer with interrupt
+ (+) Register and Unregister DMA callbacks
+ (+) Abort DMA transfer
+ (+) Poll for transfer complete
+ (+) Handle DMA interrupt request
+
+@endverbatim
+ * @{
+ */
+
+/**
+ * @brief Starts the DMA Transfer.
+ * @param hdma : pointer to a DMA_HandleTypeDef structure that contains
+ * the configuration information for the specified DMA Stream.
+ * @param SrcAddress: The source memory Buffer address
+ * @param DstAddress: The destination memory Buffer address
+ * @param DataLength: The length of data to be transferred from source to destination
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_DMA_Start(DMA_HandleTypeDef *hdma, uint32_t SrcAddress, uint32_t DstAddress, uint32_t DataLength)
+{
+ HAL_StatusTypeDef status = HAL_OK;
+
+ /* Check the parameters */
+ assert_param(IS_DMA_BUFFER_SIZE(DataLength));
+
+ /* Check the DMA peripheral handle */
+ if(hdma == NULL)
+ {
+ return HAL_ERROR;
+ }
+
+ /* Process locked */
+ __HAL_LOCK(hdma);
+
+ if(HAL_DMA_STATE_READY == hdma->State)
+ {
+ /* Change DMA peripheral state */
+ hdma->State = HAL_DMA_STATE_BUSY;
+
+ /* Initialize the error code */
+ hdma->ErrorCode = HAL_DMA_ERROR_NONE;
+
+ /* Disable the peripheral */
+ __HAL_DMA_DISABLE(hdma);
+
+ /* Configure the source, destination address and the data length */
+ DMA_SetConfig(hdma, SrcAddress, DstAddress, DataLength);
+
+ /* Enable the Peripheral */
+ __HAL_DMA_ENABLE(hdma);
+ }
+ else
+ {
+ /* Set the error code to busy */
+ hdma->ErrorCode = HAL_DMA_ERROR_BUSY;
+
+ /* Process unlocked */
+ __HAL_UNLOCK(hdma);
+
+ /* Return error status */
+ status = HAL_ERROR;
+ }
+ return status;
+}
+
+/**
+ * @brief Start the DMA Transfer with interrupt enabled.
+ * @param hdma: pointer to a DMA_HandleTypeDef structure that contains
+ * the configuration information for the specified DMA Stream.
+ * @param SrcAddress: The source memory Buffer address
+ * @param DstAddress: The destination memory Buffer address
+ * @param DataLength: The length of data to be transferred from source to destination
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_DMA_Start_IT(DMA_HandleTypeDef *hdma, uint32_t SrcAddress, uint32_t DstAddress, uint32_t DataLength)
+{
+ HAL_StatusTypeDef status = HAL_OK;
+
+ /* Check the parameters */
+ assert_param(IS_DMA_BUFFER_SIZE(DataLength));
+
+ /* Check the DMA peripheral handle */
+ if(hdma == NULL)
+ {
+ return HAL_ERROR;
+ }
+
+ /* Process locked */
+ __HAL_LOCK(hdma);
+
+ if(HAL_DMA_STATE_READY == hdma->State)
+ {
+ /* Change DMA peripheral state */
+ hdma->State = HAL_DMA_STATE_BUSY;
+
+ /* Initialize the error code */
+ hdma->ErrorCode = HAL_DMA_ERROR_NONE;
+
+ /* Disable the peripheral */
+ __HAL_DMA_DISABLE(hdma);
+
+ /* Configure the source, destination address and the data length */
+ DMA_SetConfig(hdma, SrcAddress, DstAddress, DataLength);
+
+ if(IS_DMA_STREAM_INSTANCE(hdma->Instance) != 0U) /* DMA1 or DMA2 instance */
+ {
+ /* Enable Common interrupts*/
+ MODIFY_REG(((DMA_Stream_TypeDef *)hdma->Instance)->CR, (DMA_IT_TC | DMA_IT_TE | DMA_IT_DME | DMA_IT_HT), (DMA_IT_TC | DMA_IT_TE | DMA_IT_DME));
+
+ if(hdma->XferHalfCpltCallback != NULL)
+ {
+ /* Enable Half Transfer IT if corresponding Callback is set */
+ ((DMA_Stream_TypeDef *)hdma->Instance)->CR |= DMA_IT_HT;
+ }
+ }
+ else /* BDMA channel */
+ {
+ /* Enable Common interrupts */
+ MODIFY_REG(((BDMA_Channel_TypeDef *)hdma->Instance)->CCR, (BDMA_CCR_TCIE | BDMA_CCR_HTIE | BDMA_CCR_TEIE), (BDMA_CCR_TCIE | BDMA_CCR_TEIE));
+
+ if(hdma->XferHalfCpltCallback != NULL)
+ {
+ /*Enable Half Transfer IT if corresponding Callback is set */
+ ((BDMA_Channel_TypeDef *)hdma->Instance)->CCR |= BDMA_CCR_HTIE;
+ }
+ }
+
+ if(IS_DMA_DMAMUX_ALL_INSTANCE(hdma->Instance) != 0U) /* No DMAMUX available for BDMA1 */
+ {
+ /* Check if DMAMUX Synchronization is enabled */
+ if((hdma->DMAmuxChannel->CCR & DMAMUX_CxCR_SE) != 0U)
+ {
+ /* Enable DMAMUX sync overrun IT*/
+ hdma->DMAmuxChannel->CCR |= DMAMUX_CxCR_SOIE;
+ }
+
+ if(hdma->DMAmuxRequestGen != 0U)
+ {
+ /* if using DMAMUX request generator, enable the DMAMUX request generator overrun IT*/
+ /* enable the request gen overrun IT */
+ hdma->DMAmuxRequestGen->RGCR |= DMAMUX_RGxCR_OIE;
+ }
+ }
+
+ /* Enable the Peripheral */
+ __HAL_DMA_ENABLE(hdma);
+ }
+ else
+ {
+ /* Set the error code to busy */
+ hdma->ErrorCode = HAL_DMA_ERROR_BUSY;
+
+ /* Process unlocked */
+ __HAL_UNLOCK(hdma);
+
+ /* Return error status */
+ status = HAL_ERROR;
+ }
+
+ return status;
+}
+
+/**
+ * @brief Aborts the DMA Transfer.
+ * @param hdma : pointer to a DMA_HandleTypeDef structure that contains
+ * the configuration information for the specified DMA Stream.
+ *
+ * @note After disabling a DMA Stream, a check for wait until the DMA Stream is
+ * effectively disabled is added. If a Stream is disabled
+ * while a data transfer is ongoing, the current data will be transferred
+ * and the Stream will be effectively disabled only after the transfer of
+ * this single data is finished.
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_DMA_Abort(DMA_HandleTypeDef *hdma)
+{
+ /* calculate DMA base and stream number */
+ DMA_Base_Registers *regs_dma;
+ BDMA_Base_Registers *regs_bdma;
+ const __IO uint32_t *enableRegister;
+
+ uint32_t tickstart = HAL_GetTick();
+
+ /* Check the DMA peripheral handle */
+ if(hdma == NULL)
+ {
+ return HAL_ERROR;
+ }
+
+ /* Check the DMA peripheral state */
+ if(hdma->State != HAL_DMA_STATE_BUSY)
+ {
+ hdma->ErrorCode = HAL_DMA_ERROR_NO_XFER;
+
+ /* Process Unlocked */
+ __HAL_UNLOCK(hdma);
+
+ return HAL_ERROR;
+ }
+ else
+ {
+ /* Disable all the transfer interrupts */
+ if(IS_DMA_STREAM_INSTANCE(hdma->Instance) != 0U) /* DMA1 or DMA2 instance */
+ {
+ /* Disable DMA All Interrupts */
+ ((DMA_Stream_TypeDef *)hdma->Instance)->CR &= ~(DMA_IT_TC | DMA_IT_TE | DMA_IT_DME | DMA_IT_HT);
+ ((DMA_Stream_TypeDef *)hdma->Instance)->FCR &= ~(DMA_IT_FE);
+
+ enableRegister = (__IO uint32_t *)(&(((DMA_Stream_TypeDef *)hdma->Instance)->CR));
+ }
+ else /* BDMA channel */
+ {
+ /* Disable DMA All Interrupts */
+ ((BDMA_Channel_TypeDef *)hdma->Instance)->CCR &= ~(BDMA_CCR_TCIE | BDMA_CCR_HTIE | BDMA_CCR_TEIE);
+
+ enableRegister = (__IO uint32_t *)(&(((BDMA_Channel_TypeDef *)hdma->Instance)->CCR));
+ }
+
+ if(IS_DMA_DMAMUX_ALL_INSTANCE(hdma->Instance) != 0U) /* No DMAMUX available for BDMA1 */
+ {
+ /* disable the DMAMUX sync overrun IT */
+ hdma->DMAmuxChannel->CCR &= ~DMAMUX_CxCR_SOIE;
+ }
+
+ /* Disable the stream */
+ __HAL_DMA_DISABLE(hdma);
+
+ /* Check if the DMA Stream is effectively disabled */
+ while(((*enableRegister) & DMA_SxCR_EN) != 0U)
+ {
+ /* Check for the Timeout */
+ if((HAL_GetTick() - tickstart ) > HAL_TIMEOUT_DMA_ABORT)
+ {
+ /* Update error code */
+ hdma->ErrorCode = HAL_DMA_ERROR_TIMEOUT;
+
+ /* Change the DMA state */
+ hdma->State = HAL_DMA_STATE_ERROR;
+
+ /* Process Unlocked */
+ __HAL_UNLOCK(hdma);
+
+ return HAL_ERROR;
+ }
+ }
+
+ /* Clear all interrupt flags at correct offset within the register */
+ if(IS_DMA_STREAM_INSTANCE(hdma->Instance) != 0U) /* DMA1 or DMA2 instance */
+ {
+ regs_dma = (DMA_Base_Registers *)hdma->StreamBaseAddress;
+ regs_dma->IFCR = 0x3FUL << (hdma->StreamIndex & 0x1FU);
+ }
+ else /* BDMA channel */
+ {
+ regs_bdma = (BDMA_Base_Registers *)hdma->StreamBaseAddress;
+ regs_bdma->IFCR = ((BDMA_IFCR_CGIF0) << (hdma->StreamIndex & 0x1FU));
+ }
+
+ if(IS_DMA_DMAMUX_ALL_INSTANCE(hdma->Instance) != 0U) /* No DMAMUX available for BDMA1 */
+ {
+ /* Clear the DMAMUX synchro overrun flag */
+ hdma->DMAmuxChannelStatus->CFR = hdma->DMAmuxChannelStatusMask;
+
+ if(hdma->DMAmuxRequestGen != 0U)
+ {
+ /* if using DMAMUX request generator, disable the DMAMUX request generator overrun IT */
+ /* disable the request gen overrun IT */
+ hdma->DMAmuxRequestGen->RGCR &= ~DMAMUX_RGxCR_OIE;
+
+ /* Clear the DMAMUX request generator overrun flag */
+ hdma->DMAmuxRequestGenStatus->RGCFR = hdma->DMAmuxRequestGenStatusMask;
+ }
+ }
+
+ /* Change the DMA state */
+ hdma->State = HAL_DMA_STATE_READY;
+
+ /* Process Unlocked */
+ __HAL_UNLOCK(hdma);
+ }
+
+ return HAL_OK;
+}
+
+/**
+ * @brief Aborts the DMA Transfer in Interrupt mode.
+ * @param hdma : pointer to a DMA_HandleTypeDef structure that contains
+ * the configuration information for the specified DMA Stream.
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_DMA_Abort_IT(DMA_HandleTypeDef *hdma)
+{
+ BDMA_Base_Registers *regs_bdma;
+
+ /* Check the DMA peripheral handle */
+ if(hdma == NULL)
+ {
+ return HAL_ERROR;
+ }
+
+ if(hdma->State != HAL_DMA_STATE_BUSY)
+ {
+ hdma->ErrorCode = HAL_DMA_ERROR_NO_XFER;
+ return HAL_ERROR;
+ }
+ else
+ {
+ if(IS_DMA_STREAM_INSTANCE(hdma->Instance) != 0U) /* DMA1 or DMA2 instance */
+ {
+ /* Set Abort State */
+ hdma->State = HAL_DMA_STATE_ABORT;
+
+ /* Disable the stream */
+ __HAL_DMA_DISABLE(hdma);
+ }
+ else /* BDMA channel */
+ {
+ /* Disable DMA All Interrupts */
+ ((BDMA_Channel_TypeDef *)hdma->Instance)->CCR &= ~(BDMA_CCR_TCIE | BDMA_CCR_HTIE | BDMA_CCR_TEIE);
+
+ /* Disable the channel */
+ __HAL_DMA_DISABLE(hdma);
+
+ if(IS_DMA_DMAMUX_ALL_INSTANCE(hdma->Instance) != 0U) /* No DMAMUX available for BDMA1 */
+ {
+ /* disable the DMAMUX sync overrun IT */
+ hdma->DMAmuxChannel->CCR &= ~DMAMUX_CxCR_SOIE;
+
+ /* Clear all flags */
+ regs_bdma = (BDMA_Base_Registers *)hdma->StreamBaseAddress;
+ regs_bdma->IFCR = ((BDMA_IFCR_CGIF0) << (hdma->StreamIndex & 0x1FU));
+
+ /* Clear the DMAMUX synchro overrun flag */
+ hdma->DMAmuxChannelStatus->CFR = hdma->DMAmuxChannelStatusMask;
+
+ if(hdma->DMAmuxRequestGen != 0U)
+ {
+ /* if using DMAMUX request generator, disable the DMAMUX request generator overrun IT*/
+ /* disable the request gen overrun IT */
+ hdma->DMAmuxRequestGen->RGCR &= ~DMAMUX_RGxCR_OIE;
+
+ /* Clear the DMAMUX request generator overrun flag */
+ hdma->DMAmuxRequestGenStatus->RGCFR = hdma->DMAmuxRequestGenStatusMask;
+ }
+ }
+
+ /* Change the DMA state */
+ hdma->State = HAL_DMA_STATE_READY;
+
+ /* Process Unlocked */
+ __HAL_UNLOCK(hdma);
+
+ /* Call User Abort callback */
+ if(hdma->XferAbortCallback != NULL)
+ {
+ hdma->XferAbortCallback(hdma);
+ }
+ }
+ }
+
+ return HAL_OK;
+}
+
+/**
+ * @brief Polling for transfer complete.
+ * @param hdma: pointer to a DMA_HandleTypeDef structure that contains
+ * the configuration information for the specified DMA Stream.
+ * @param CompleteLevel: Specifies the DMA level complete.
+ * @note The polling mode is kept in this version for legacy. it is recommended to use the IT model instead.
+ * This model could be used for debug purpose.
+ * @note The HAL_DMA_PollForTransfer API cannot be used in circular and double buffering mode (automatic circular mode).
+ * @param Timeout: Timeout duration.
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_DMA_PollForTransfer(DMA_HandleTypeDef *hdma, HAL_DMA_LevelCompleteTypeDef CompleteLevel, uint32_t Timeout)
+{
+ HAL_StatusTypeDef status = HAL_OK;
+ uint32_t cpltlevel_mask;
+ uint32_t tickstart = HAL_GetTick();
+
+ /* IT status register */
+ __IO uint32_t *isr_reg;
+ /* IT clear flag register */
+ __IO uint32_t *ifcr_reg;
+
+ /* Check the DMA peripheral handle */
+ if(hdma == NULL)
+ {
+ return HAL_ERROR;
+ }
+
+ if(HAL_DMA_STATE_BUSY != hdma->State)
+ {
+ /* No transfer ongoing */
+ hdma->ErrorCode = HAL_DMA_ERROR_NO_XFER;
+ __HAL_UNLOCK(hdma);
+
+ return HAL_ERROR;
+ }
+
+ if(IS_DMA_STREAM_INSTANCE(hdma->Instance) != 0U) /* DMA1 or DMA2 instance */
+ {
+ /* Polling mode not supported in circular mode and double buffering mode */
+ if ((((DMA_Stream_TypeDef *)hdma->Instance)->CR & DMA_SxCR_CIRC) != 0U)
+ {
+ hdma->ErrorCode = HAL_DMA_ERROR_NOT_SUPPORTED;
+ return HAL_ERROR;
+ }
+
+ /* Get the level transfer complete flag */
+ if(CompleteLevel == HAL_DMA_FULL_TRANSFER)
+ {
+ /* Transfer Complete flag */
+ cpltlevel_mask = DMA_FLAG_TCIF0_4 << (hdma->StreamIndex & 0x1FU);
+ }
+ else
+ {
+ /* Half Transfer Complete flag */
+ cpltlevel_mask = DMA_FLAG_HTIF0_4 << (hdma->StreamIndex & 0x1FU);
+ }
+
+ isr_reg = &(((DMA_Base_Registers *)hdma->StreamBaseAddress)->ISR);
+ ifcr_reg = &(((DMA_Base_Registers *)hdma->StreamBaseAddress)->IFCR);
+ }
+ else /* BDMA channel */
+ {
+ /* Polling mode not supported in circular mode */
+ if ((((BDMA_Channel_TypeDef *)hdma->Instance)->CCR & BDMA_CCR_CIRC) != 0U)
+ {
+ hdma->ErrorCode = HAL_DMA_ERROR_NOT_SUPPORTED;
+ return HAL_ERROR;
+ }
+
+ /* Get the level transfer complete flag */
+ if(CompleteLevel == HAL_DMA_FULL_TRANSFER)
+ {
+ /* Transfer Complete flag */
+ cpltlevel_mask = BDMA_FLAG_TC0 << (hdma->StreamIndex & 0x1FU);
+ }
+ else
+ {
+ /* Half Transfer Complete flag */
+ cpltlevel_mask = BDMA_FLAG_HT0 << (hdma->StreamIndex & 0x1FU);
+ }
+
+ isr_reg = &(((BDMA_Base_Registers *)hdma->StreamBaseAddress)->ISR);
+ ifcr_reg = &(((BDMA_Base_Registers *)hdma->StreamBaseAddress)->IFCR);
+ }
+
+ while(((*isr_reg) & cpltlevel_mask) == 0U)
+ {
+ if(IS_DMA_STREAM_INSTANCE(hdma->Instance) != 0U) /* DMA1 or DMA2 instance */
+ {
+ if(((*isr_reg) & (DMA_FLAG_FEIF0_4 << (hdma->StreamIndex & 0x1FU))) != 0U)
+ {
+ /* Update error code */
+ hdma->ErrorCode |= HAL_DMA_ERROR_FE;
+
+ /* Clear the FIFO error flag */
+ (*ifcr_reg) = DMA_FLAG_FEIF0_4 << (hdma->StreamIndex & 0x1FU);
+ }
+
+ if(((*isr_reg) & (DMA_FLAG_DMEIF0_4 << (hdma->StreamIndex & 0x1FU))) != 0U)
+ {
+ /* Update error code */
+ hdma->ErrorCode |= HAL_DMA_ERROR_DME;
+
+ /* Clear the Direct Mode error flag */
+ (*ifcr_reg) = DMA_FLAG_DMEIF0_4 << (hdma->StreamIndex & 0x1FU);
+ }
+
+ if(((*isr_reg) & (DMA_FLAG_TEIF0_4 << (hdma->StreamIndex & 0x1FU))) != 0U)
+ {
+ /* Update error code */
+ hdma->ErrorCode |= HAL_DMA_ERROR_TE;
+
+ /* Clear the transfer error flag */
+ (*ifcr_reg) = DMA_FLAG_TEIF0_4 << (hdma->StreamIndex & 0x1FU);
+
+ /* Change the DMA state */
+ hdma->State = HAL_DMA_STATE_READY;
+
+ /* Process Unlocked */
+ __HAL_UNLOCK(hdma);
+
+ return HAL_ERROR;
+ }
+ }
+ else /* BDMA channel */
+ {
+ if(((*isr_reg) & (BDMA_FLAG_TE0 << (hdma->StreamIndex & 0x1FU))) != 0U)
+ {
+ /* When a DMA transfer error occurs */
+ /* A hardware clear of its EN bits is performed */
+ /* Clear all flags */
+ (*isr_reg) = ((BDMA_ISR_GIF0) << (hdma->StreamIndex & 0x1FU));
+
+ /* Update error code */
+ hdma->ErrorCode = HAL_DMA_ERROR_TE;
+
+ /* Change the DMA state */
+ hdma->State = HAL_DMA_STATE_READY;
+
+ /* Process Unlocked */
+ __HAL_UNLOCK(hdma);
+
+ return HAL_ERROR;
+ }
+ }
+
+ /* Check for the Timeout (Not applicable in circular mode)*/
+ if(Timeout != HAL_MAX_DELAY)
+ {
+ if(((HAL_GetTick() - tickstart ) > Timeout)||(Timeout == 0U))
+ {
+ /* Update error code */
+ hdma->ErrorCode = HAL_DMA_ERROR_TIMEOUT;
+
+ /* if timeout then abort the current transfer */
+ /* No need to check return value: as in this case we will return HAL_ERROR with HAL_DMA_ERROR_TIMEOUT error code */
+ (void) HAL_DMA_Abort(hdma);
+ /*
+ Note that the Abort function will
+ - Clear the transfer error flags
+ - Unlock
+ - Set the State
+ */
+
+ return HAL_ERROR;
+ }
+ }
+
+ if(IS_DMA_DMAMUX_ALL_INSTANCE(hdma->Instance) != 0U) /* No DMAMUX available for BDMA1 */
+ {
+ /* Check for DMAMUX Request generator (if used) overrun status */
+ if(hdma->DMAmuxRequestGen != 0U)
+ {
+ /* if using DMAMUX request generator Check for DMAMUX request generator overrun */
+ if((hdma->DMAmuxRequestGenStatus->RGSR & hdma->DMAmuxRequestGenStatusMask) != 0U)
+ {
+ /* Clear the DMAMUX request generator overrun flag */
+ hdma->DMAmuxRequestGenStatus->RGCFR = hdma->DMAmuxRequestGenStatusMask;
+
+ /* Update error code */
+ hdma->ErrorCode |= HAL_DMA_ERROR_REQGEN;
+ }
+ }
+
+ /* Check for DMAMUX Synchronization overrun */
+ if((hdma->DMAmuxChannelStatus->CSR & hdma->DMAmuxChannelStatusMask) != 0U)
+ {
+ /* Clear the DMAMUX synchro overrun flag */
+ hdma->DMAmuxChannelStatus->CFR = hdma->DMAmuxChannelStatusMask;
+
+ /* Update error code */
+ hdma->ErrorCode |= HAL_DMA_ERROR_SYNC;
+ }
+ }
+ }
+
+
+ /* Get the level transfer complete flag */
+ if(CompleteLevel == HAL_DMA_FULL_TRANSFER)
+ {
+ /* Clear the half transfer and transfer complete flags */
+ if(IS_DMA_STREAM_INSTANCE(hdma->Instance) != 0U) /* DMA1 or DMA2 instance */
+ {
+ (*ifcr_reg) = (DMA_FLAG_HTIF0_4 | DMA_FLAG_TCIF0_4) << (hdma->StreamIndex & 0x1FU);
+ }
+ else /* BDMA channel */
+ {
+ (*ifcr_reg) = (BDMA_FLAG_TC0 << (hdma->StreamIndex & 0x1FU));
+ }
+
+ hdma->State = HAL_DMA_STATE_READY;
+
+ /* Process Unlocked */
+ __HAL_UNLOCK(hdma);
+ }
+ else /*CompleteLevel = HAL_DMA_HALF_TRANSFER*/
+ {
+ /* Clear the half transfer and transfer complete flags */
+ if(IS_DMA_STREAM_INSTANCE(hdma->Instance) != 0U) /* DMA1 or DMA2 instance */
+ {
+ (*ifcr_reg) = (DMA_FLAG_HTIF0_4) << (hdma->StreamIndex & 0x1FU);
+ }
+ else /* BDMA channel */
+ {
+ (*ifcr_reg) = (BDMA_FLAG_HT0 << (hdma->StreamIndex & 0x1FU));
+ }
+ }
+
+ return status;
+}
+
+/**
+ * @brief Handles DMA interrupt request.
+ * @param hdma: pointer to a DMA_HandleTypeDef structure that contains
+ * the configuration information for the specified DMA Stream.
+ * @retval None
+ */
+void HAL_DMA_IRQHandler(DMA_HandleTypeDef *hdma)
+{
+ uint32_t tmpisr_dma, tmpisr_bdma;
+ uint32_t ccr_reg;
+ __IO uint32_t count = 0U;
+ uint32_t timeout = SystemCoreClock / 9600U;
+
+ /* calculate DMA base and stream number */
+ DMA_Base_Registers *regs_dma = (DMA_Base_Registers *)hdma->StreamBaseAddress;
+ BDMA_Base_Registers *regs_bdma = (BDMA_Base_Registers *)hdma->StreamBaseAddress;
+
+ tmpisr_dma = regs_dma->ISR;
+ tmpisr_bdma = regs_bdma->ISR;
+
+ if(IS_DMA_STREAM_INSTANCE(hdma->Instance) != 0U) /* DMA1 or DMA2 instance */
+ {
+ /* Transfer Error Interrupt management ***************************************/
+ if ((tmpisr_dma & (DMA_FLAG_TEIF0_4 << (hdma->StreamIndex & 0x1FU))) != 0U)
+ {
+ if(__HAL_DMA_GET_IT_SOURCE(hdma, DMA_IT_TE) != 0U)
+ {
+ /* Disable the transfer error interrupt */
+ ((DMA_Stream_TypeDef *)hdma->Instance)->CR &= ~(DMA_IT_TE);
+
+ /* Clear the transfer error flag */
+ regs_dma->IFCR = DMA_FLAG_TEIF0_4 << (hdma->StreamIndex & 0x1FU);
+
+ /* Update error code */
+ hdma->ErrorCode |= HAL_DMA_ERROR_TE;
+ }
+ }
+ /* FIFO Error Interrupt management ******************************************/
+ if ((tmpisr_dma & (DMA_FLAG_FEIF0_4 << (hdma->StreamIndex & 0x1FU))) != 0U)
+ {
+ if(__HAL_DMA_GET_IT_SOURCE(hdma, DMA_IT_FE) != 0U)
+ {
+ /* Clear the FIFO error flag */
+ regs_dma->IFCR = DMA_FLAG_FEIF0_4 << (hdma->StreamIndex & 0x1FU);
+
+ /* Update error code */
+ hdma->ErrorCode |= HAL_DMA_ERROR_FE;
+ }
+ }
+ /* Direct Mode Error Interrupt management ***********************************/
+ if ((tmpisr_dma & (DMA_FLAG_DMEIF0_4 << (hdma->StreamIndex & 0x1FU))) != 0U)
+ {
+ if(__HAL_DMA_GET_IT_SOURCE(hdma, DMA_IT_DME) != 0U)
+ {
+ /* Clear the direct mode error flag */
+ regs_dma->IFCR = DMA_FLAG_DMEIF0_4 << (hdma->StreamIndex & 0x1FU);
+
+ /* Update error code */
+ hdma->ErrorCode |= HAL_DMA_ERROR_DME;
+ }
+ }
+ /* Half Transfer Complete Interrupt management ******************************/
+ if ((tmpisr_dma & (DMA_FLAG_HTIF0_4 << (hdma->StreamIndex & 0x1FU))) != 0U)
+ {
+ if(__HAL_DMA_GET_IT_SOURCE(hdma, DMA_IT_HT) != 0U)
+ {
+ /* Clear the half transfer complete flag */
+ regs_dma->IFCR = DMA_FLAG_HTIF0_4 << (hdma->StreamIndex & 0x1FU);
+
+ /* Multi_Buffering mode enabled */
+ if(((((DMA_Stream_TypeDef *)hdma->Instance)->CR) & (uint32_t)(DMA_SxCR_DBM)) != 0U)
+ {
+ /* Current memory buffer used is Memory 0 */
+ if((((DMA_Stream_TypeDef *)hdma->Instance)->CR & DMA_SxCR_CT) == 0U)
+ {
+ if(hdma->XferHalfCpltCallback != NULL)
+ {
+ /* Half transfer callback */
+ hdma->XferHalfCpltCallback(hdma);
+ }
+ }
+ /* Current memory buffer used is Memory 1 */
+ else
+ {
+ if(hdma->XferM1HalfCpltCallback != NULL)
+ {
+ /* Half transfer callback */
+ hdma->XferM1HalfCpltCallback(hdma);
+ }
+ }
+ }
+ else
+ {
+ /* Disable the half transfer interrupt if the DMA mode is not CIRCULAR */
+ if((((DMA_Stream_TypeDef *)hdma->Instance)->CR & DMA_SxCR_CIRC) == 0U)
+ {
+ /* Disable the half transfer interrupt */
+ ((DMA_Stream_TypeDef *)hdma->Instance)->CR &= ~(DMA_IT_HT);
+ }
+
+ if(hdma->XferHalfCpltCallback != NULL)
+ {
+ /* Half transfer callback */
+ hdma->XferHalfCpltCallback(hdma);
+ }
+ }
+ }
+ }
+ /* Transfer Complete Interrupt management ***********************************/
+ if ((tmpisr_dma & (DMA_FLAG_TCIF0_4 << (hdma->StreamIndex & 0x1FU))) != 0U)
+ {
+ if(__HAL_DMA_GET_IT_SOURCE(hdma, DMA_IT_TC) != 0U)
+ {
+ /* Clear the transfer complete flag */
+ regs_dma->IFCR = DMA_FLAG_TCIF0_4 << (hdma->StreamIndex & 0x1FU);
+
+ if(HAL_DMA_STATE_ABORT == hdma->State)
+ {
+ /* Disable all the transfer interrupts */
+ ((DMA_Stream_TypeDef *)hdma->Instance)->CR &= ~(DMA_IT_TC | DMA_IT_TE | DMA_IT_DME);
+ ((DMA_Stream_TypeDef *)hdma->Instance)->FCR &= ~(DMA_IT_FE);
+
+ if((hdma->XferHalfCpltCallback != NULL) || (hdma->XferM1HalfCpltCallback != NULL))
+ {
+ ((DMA_Stream_TypeDef *)hdma->Instance)->CR &= ~(DMA_IT_HT);
+ }
+
+ /* Clear all interrupt flags at correct offset within the register */
+ regs_dma->IFCR = 0x3FUL << (hdma->StreamIndex & 0x1FU);
+
+ /* Change the DMA state */
+ hdma->State = HAL_DMA_STATE_READY;
+
+ /* Process Unlocked */
+ __HAL_UNLOCK(hdma);
+
+ if(hdma->XferAbortCallback != NULL)
+ {
+ hdma->XferAbortCallback(hdma);
+ }
+ return;
+ }
+
+ if(((((DMA_Stream_TypeDef *)hdma->Instance)->CR) & (uint32_t)(DMA_SxCR_DBM)) != 0U)
+ {
+ /* Current memory buffer used is Memory 0 */
+ if((((DMA_Stream_TypeDef *)hdma->Instance)->CR & DMA_SxCR_CT) == 0U)
+ {
+ if(hdma->XferM1CpltCallback != NULL)
+ {
+ /* Transfer complete Callback for memory1 */
+ hdma->XferM1CpltCallback(hdma);
+ }
+ }
+ /* Current memory buffer used is Memory 1 */
+ else
+ {
+ if(hdma->XferCpltCallback != NULL)
+ {
+ /* Transfer complete Callback for memory0 */
+ hdma->XferCpltCallback(hdma);
+ }
+ }
+ }
+ /* Disable the transfer complete interrupt if the DMA mode is not CIRCULAR */
+ else
+ {
+ if((((DMA_Stream_TypeDef *)hdma->Instance)->CR & DMA_SxCR_CIRC) == 0U)
+ {
+ /* Disable the transfer complete interrupt */
+ ((DMA_Stream_TypeDef *)hdma->Instance)->CR &= ~(DMA_IT_TC);
+
+ /* Change the DMA state */
+ hdma->State = HAL_DMA_STATE_READY;
+
+ /* Process Unlocked */
+ __HAL_UNLOCK(hdma);
+ }
+
+ if(hdma->XferCpltCallback != NULL)
+ {
+ /* Transfer complete callback */
+ hdma->XferCpltCallback(hdma);
+ }
+ }
+ }
+ }
+
+ /* manage error case */
+ if(hdma->ErrorCode != HAL_DMA_ERROR_NONE)
+ {
+ if((hdma->ErrorCode & HAL_DMA_ERROR_TE) != 0U)
+ {
+ hdma->State = HAL_DMA_STATE_ABORT;
+
+ /* Disable the stream */
+ __HAL_DMA_DISABLE(hdma);
+
+ do
+ {
+ if (++count > timeout)
+ {
+ break;
+ }
+ }
+ while((((DMA_Stream_TypeDef *)hdma->Instance)->CR & DMA_SxCR_EN) != 0U);
+
+ if((((DMA_Stream_TypeDef *)hdma->Instance)->CR & DMA_SxCR_EN) != 0U)
+ {
+ /* Change the DMA state to error if DMA disable fails */
+ hdma->State = HAL_DMA_STATE_ERROR;
+ }
+ else
+ {
+ /* Change the DMA state to Ready if DMA disable success */
+ hdma->State = HAL_DMA_STATE_READY;
+ }
+
+ /* Process Unlocked */
+ __HAL_UNLOCK(hdma);
+ }
+
+ if(hdma->XferErrorCallback != NULL)
+ {
+ /* Transfer error callback */
+ hdma->XferErrorCallback(hdma);
+ }
+ }
+ }
+ else if(IS_BDMA_CHANNEL_INSTANCE(hdma->Instance) != 0U) /* BDMA instance(s) */
+ {
+ ccr_reg = (((BDMA_Channel_TypeDef *)hdma->Instance)->CCR);
+
+ /* Half Transfer Complete Interrupt management ******************************/
+ if (((tmpisr_bdma & (BDMA_FLAG_HT0 << (hdma->StreamIndex & 0x1FU))) != 0U) && ((ccr_reg & BDMA_CCR_HTIE) != 0U))
+ {
+ /* Clear the half transfer complete flag */
+ regs_bdma->IFCR = (BDMA_ISR_HTIF0 << (hdma->StreamIndex & 0x1FU));
+
+ /* Disable the transfer complete interrupt if the DMA mode is Double Buffering */
+ if((ccr_reg & BDMA_CCR_DBM) != 0U)
+ {
+ /* Current memory buffer used is Memory 0 */
+ if((ccr_reg & BDMA_CCR_CT) == 0U)
+ {
+ if(hdma->XferM1HalfCpltCallback != NULL)
+ {
+ /* Half transfer Callback for Memory 1 */
+ hdma->XferM1HalfCpltCallback(hdma);
+ }
+ }
+ /* Current memory buffer used is Memory 1 */
+ else
+ {
+ if(hdma->XferHalfCpltCallback != NULL)
+ {
+ /* Half transfer Callback for Memory 0 */
+ hdma->XferHalfCpltCallback(hdma);
+ }
+ }
+ }
+ else
+ {
+ if((ccr_reg & BDMA_CCR_CIRC) == 0U)
+ {
+ /* Disable the half transfer interrupt */
+ __HAL_DMA_DISABLE_IT(hdma, DMA_IT_HT);
+ }
+
+ /* DMA peripheral state is not updated in Half Transfer */
+ /* but in Transfer Complete case */
+
+ if(hdma->XferHalfCpltCallback != NULL)
+ {
+ /* Half transfer callback */
+ hdma->XferHalfCpltCallback(hdma);
+ }
+ }
+ }
+
+ /* Transfer Complete Interrupt management ***********************************/
+ else if (((tmpisr_bdma & (BDMA_FLAG_TC0 << (hdma->StreamIndex & 0x1FU))) != 0U) && ((ccr_reg & BDMA_CCR_TCIE) != 0U))
+ {
+ /* Clear the transfer complete flag */
+ regs_bdma->IFCR = (BDMA_ISR_TCIF0) << (hdma->StreamIndex & 0x1FU);
+
+ /* Disable the transfer complete interrupt if the DMA mode is Double Buffering */
+ if((ccr_reg & BDMA_CCR_DBM) != 0U)
+ {
+ /* Current memory buffer used is Memory 0 */
+ if((ccr_reg & BDMA_CCR_CT) == 0U)
+ {
+ if(hdma->XferM1CpltCallback != NULL)
+ {
+ /* Transfer complete Callback for Memory 1 */
+ hdma->XferM1CpltCallback(hdma);
+ }
+ }
+ /* Current memory buffer used is Memory 1 */
+ else
+ {
+ if(hdma->XferCpltCallback != NULL)
+ {
+ /* Transfer complete Callback for Memory 0 */
+ hdma->XferCpltCallback(hdma);
+ }
+ }
+ }
+ else
+ {
+ if((ccr_reg & BDMA_CCR_CIRC) == 0U)
+ {
+ /* Disable the transfer complete and error interrupt, if the DMA mode is not CIRCULAR */
+ __HAL_DMA_DISABLE_IT(hdma, DMA_IT_TE | DMA_IT_TC);
+
+ /* Change the DMA state */
+ hdma->State = HAL_DMA_STATE_READY;
+
+ /* Process Unlocked */
+ __HAL_UNLOCK(hdma);
+ }
+
+ if(hdma->XferCpltCallback != NULL)
+ {
+ /* Transfer complete callback */
+ hdma->XferCpltCallback(hdma);
+ }
+ }
+ }
+ /* Transfer Error Interrupt management **************************************/
+ else if (((tmpisr_bdma & (BDMA_FLAG_TE0 << (hdma->StreamIndex & 0x1FU))) != 0U) && ((ccr_reg & BDMA_CCR_TEIE) != 0U))
+ {
+ /* When a DMA transfer error occurs */
+ /* A hardware clear of its EN bits is performed */
+ /* Disable ALL DMA IT */
+ __HAL_DMA_DISABLE_IT(hdma, (DMA_IT_TC | DMA_IT_HT | DMA_IT_TE));
+
+ /* Clear all flags */
+ regs_bdma->IFCR = (BDMA_ISR_GIF0) << (hdma->StreamIndex & 0x1FU);
+
+ /* Update error code */
+ hdma->ErrorCode = HAL_DMA_ERROR_TE;
+
+ /* Change the DMA state */
+ hdma->State = HAL_DMA_STATE_READY;
+
+ /* Process Unlocked */
+ __HAL_UNLOCK(hdma);
+
+ if (hdma->XferErrorCallback != NULL)
+ {
+ /* Transfer error callback */
+ hdma->XferErrorCallback(hdma);
+ }
+ }
+ else
+ {
+ /* Nothing To Do */
+ }
+ }
+ else
+ {
+ /* Nothing To Do */
+ }
+}
+
+/**
+ * @brief Register callbacks
+ * @param hdma: pointer to a DMA_HandleTypeDef structure that contains
+ * the configuration information for the specified DMA Stream.
+ * @param CallbackID: User Callback identifier
+ * a DMA_HandleTypeDef structure as parameter.
+ * @param pCallback: pointer to private callback function which has pointer to
+ * a DMA_HandleTypeDef structure as parameter.
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_DMA_RegisterCallback(DMA_HandleTypeDef *hdma, HAL_DMA_CallbackIDTypeDef CallbackID, void (* pCallback)(DMA_HandleTypeDef *_hdma))
+{
+
+ HAL_StatusTypeDef status = HAL_OK;
+
+ /* Check the DMA peripheral handle */
+ if(hdma == NULL)
+ {
+ return HAL_ERROR;
+ }
+
+ /* Process locked */
+ __HAL_LOCK(hdma);
+
+ if(HAL_DMA_STATE_READY == hdma->State)
+ {
+ switch (CallbackID)
+ {
+ case HAL_DMA_XFER_CPLT_CB_ID:
+ hdma->XferCpltCallback = pCallback;
+ break;
+
+ case HAL_DMA_XFER_HALFCPLT_CB_ID:
+ hdma->XferHalfCpltCallback = pCallback;
+ break;
+
+ case HAL_DMA_XFER_M1CPLT_CB_ID:
+ hdma->XferM1CpltCallback = pCallback;
+ break;
+
+ case HAL_DMA_XFER_M1HALFCPLT_CB_ID:
+ hdma->XferM1HalfCpltCallback = pCallback;
+ break;
+
+ case HAL_DMA_XFER_ERROR_CB_ID:
+ hdma->XferErrorCallback = pCallback;
+ break;
+
+ case HAL_DMA_XFER_ABORT_CB_ID:
+ hdma->XferAbortCallback = pCallback;
+ break;
+
+ default:
+ status = HAL_ERROR;
+ break;
+ }
+ }
+ else
+ {
+ /* Return error status */
+ status = HAL_ERROR;
+ }
+
+ /* Release Lock */
+ __HAL_UNLOCK(hdma);
+
+ return status;
+}
+
+/**
+ * @brief UnRegister callbacks
+ * @param hdma: pointer to a DMA_HandleTypeDef structure that contains
+ * the configuration information for the specified DMA Stream.
+ * @param CallbackID: User Callback identifier
+ * a HAL_DMA_CallbackIDTypeDef ENUM as parameter.
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_DMA_UnRegisterCallback(DMA_HandleTypeDef *hdma, HAL_DMA_CallbackIDTypeDef CallbackID)
+{
+ HAL_StatusTypeDef status = HAL_OK;
+
+ /* Check the DMA peripheral handle */
+ if(hdma == NULL)
+ {
+ return HAL_ERROR;
+ }
+
+ /* Process locked */
+ __HAL_LOCK(hdma);
+
+ if(HAL_DMA_STATE_READY == hdma->State)
+ {
+ switch (CallbackID)
+ {
+ case HAL_DMA_XFER_CPLT_CB_ID:
+ hdma->XferCpltCallback = NULL;
+ break;
+
+ case HAL_DMA_XFER_HALFCPLT_CB_ID:
+ hdma->XferHalfCpltCallback = NULL;
+ break;
+
+ case HAL_DMA_XFER_M1CPLT_CB_ID:
+ hdma->XferM1CpltCallback = NULL;
+ break;
+
+ case HAL_DMA_XFER_M1HALFCPLT_CB_ID:
+ hdma->XferM1HalfCpltCallback = NULL;
+ break;
+
+ case HAL_DMA_XFER_ERROR_CB_ID:
+ hdma->XferErrorCallback = NULL;
+ break;
+
+ case HAL_DMA_XFER_ABORT_CB_ID:
+ hdma->XferAbortCallback = NULL;
+ break;
+
+ case HAL_DMA_XFER_ALL_CB_ID:
+ hdma->XferCpltCallback = NULL;
+ hdma->XferHalfCpltCallback = NULL;
+ hdma->XferM1CpltCallback = NULL;
+ hdma->XferM1HalfCpltCallback = NULL;
+ hdma->XferErrorCallback = NULL;
+ hdma->XferAbortCallback = NULL;
+ break;
+
+ default:
+ status = HAL_ERROR;
+ break;
+ }
+ }
+ else
+ {
+ status = HAL_ERROR;
+ }
+
+ /* Release Lock */
+ __HAL_UNLOCK(hdma);
+
+ return status;
+}
+
+/**
+ * @}
+ */
+
+/** @addtogroup DMA_Exported_Functions_Group3
+ *
+@verbatim
+ ===============================================================================
+ ##### State and Errors functions #####
+ ===============================================================================
+ [..]
+ This subsection provides functions allowing to
+ (+) Check the DMA state
+ (+) Get error code
+
+@endverbatim
+ * @{
+ */
+
+/**
+ * @brief Returns the DMA state.
+ * @param hdma: pointer to a DMA_HandleTypeDef structure that contains
+ * the configuration information for the specified DMA Stream.
+ * @retval HAL state
+ */
+HAL_DMA_StateTypeDef HAL_DMA_GetState(DMA_HandleTypeDef *hdma)
+{
+ return hdma->State;
+}
+
+/**
+ * @brief Return the DMA error code
+ * @param hdma : pointer to a DMA_HandleTypeDef structure that contains
+ * the configuration information for the specified DMA Stream.
+ * @retval DMA Error Code
+ */
+uint32_t HAL_DMA_GetError(DMA_HandleTypeDef *hdma)
+{
+ return hdma->ErrorCode;
+}
+
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+/** @addtogroup DMA_Private_Functions
+ * @{
+ */
+
+/**
+ * @brief Sets the DMA Transfer parameter.
+ * @param hdma: pointer to a DMA_HandleTypeDef structure that contains
+ * the configuration information for the specified DMA Stream.
+ * @param SrcAddress: The source memory Buffer address
+ * @param DstAddress: The destination memory Buffer address
+ * @param DataLength: The length of data to be transferred from source to destination
+ * @retval None
+ */
+static void DMA_SetConfig(DMA_HandleTypeDef *hdma, uint32_t SrcAddress, uint32_t DstAddress, uint32_t DataLength)
+{
+ /* calculate DMA base and stream number */
+ DMA_Base_Registers *regs_dma = (DMA_Base_Registers *)hdma->StreamBaseAddress;
+ BDMA_Base_Registers *regs_bdma = (BDMA_Base_Registers *)hdma->StreamBaseAddress;
+
+ if(IS_DMA_DMAMUX_ALL_INSTANCE(hdma->Instance) != 0U) /* No DMAMUX available for BDMA1 */
+ {
+ /* Clear the DMAMUX synchro overrun flag */
+ hdma->DMAmuxChannelStatus->CFR = hdma->DMAmuxChannelStatusMask;
+
+ if(hdma->DMAmuxRequestGen != 0U)
+ {
+ /* Clear the DMAMUX request generator overrun flag */
+ hdma->DMAmuxRequestGenStatus->RGCFR = hdma->DMAmuxRequestGenStatusMask;
+ }
+ }
+
+ if(IS_DMA_STREAM_INSTANCE(hdma->Instance) != 0U) /* DMA1 or DMA2 instance */
+ {
+ /* Clear all interrupt flags at correct offset within the register */
+ regs_dma->IFCR = 0x3FUL << (hdma->StreamIndex & 0x1FU);
+
+ /* Clear DBM bit */
+ ((DMA_Stream_TypeDef *)hdma->Instance)->CR &= (uint32_t)(~DMA_SxCR_DBM);
+
+ /* Configure DMA Stream data length */
+ ((DMA_Stream_TypeDef *)hdma->Instance)->NDTR = DataLength;
+
+ /* Peripheral to Memory */
+ if((hdma->Init.Direction) == DMA_MEMORY_TO_PERIPH)
+ {
+ /* Configure DMA Stream destination address */
+ ((DMA_Stream_TypeDef *)hdma->Instance)->PAR = DstAddress;
+
+ /* Configure DMA Stream source address */
+ ((DMA_Stream_TypeDef *)hdma->Instance)->M0AR = SrcAddress;
+ }
+ /* Memory to Peripheral */
+ else
+ {
+ /* Configure DMA Stream source address */
+ ((DMA_Stream_TypeDef *)hdma->Instance)->PAR = SrcAddress;
+
+ /* Configure DMA Stream destination address */
+ ((DMA_Stream_TypeDef *)hdma->Instance)->M0AR = DstAddress;
+ }
+ }
+ else if(IS_BDMA_CHANNEL_INSTANCE(hdma->Instance) != 0U) /* BDMA instance(s) */
+ {
+ /* Clear all flags */
+ regs_bdma->IFCR = (BDMA_ISR_GIF0) << (hdma->StreamIndex & 0x1FU);
+
+ /* Configure DMA Channel data length */
+ ((BDMA_Channel_TypeDef *)hdma->Instance)->CNDTR = DataLength;
+
+ /* Peripheral to Memory */
+ if((hdma->Init.Direction) == DMA_MEMORY_TO_PERIPH)
+ {
+ /* Configure DMA Channel destination address */
+ ((BDMA_Channel_TypeDef *)hdma->Instance)->CPAR = DstAddress;
+
+ /* Configure DMA Channel source address */
+ ((BDMA_Channel_TypeDef *)hdma->Instance)->CM0AR = SrcAddress;
+ }
+ /* Memory to Peripheral */
+ else
+ {
+ /* Configure DMA Channel source address */
+ ((BDMA_Channel_TypeDef *)hdma->Instance)->CPAR = SrcAddress;
+
+ /* Configure DMA Channel destination address */
+ ((BDMA_Channel_TypeDef *)hdma->Instance)->CM0AR = DstAddress;
+ }
+ }
+ else
+ {
+ /* Nothing To Do */
+ }
+}
+
+/**
+ * @brief Returns the DMA Stream base address depending on stream number
+ * @param hdma: pointer to a DMA_HandleTypeDef structure that contains
+ * the configuration information for the specified DMA Stream.
+ * @retval Stream base address
+ */
+static uint32_t DMA_CalcBaseAndBitshift(DMA_HandleTypeDef *hdma)
+{
+ if(IS_DMA_STREAM_INSTANCE(hdma->Instance) != 0U) /* DMA1 or DMA2 instance */
+ {
+ uint32_t stream_number = (((uint32_t)((uint32_t*)hdma->Instance) & 0xFFU) - 16U) / 24U;
+
+ /* lookup table for necessary bitshift of flags within status registers */
+ static const uint8_t flagBitshiftOffset[8U] = {0U, 6U, 16U, 22U, 0U, 6U, 16U, 22U};
+ hdma->StreamIndex = flagBitshiftOffset[stream_number & 0x7U];
+
+ if (stream_number > 3U)
+ {
+ /* return pointer to HISR and HIFCR */
+ hdma->StreamBaseAddress = (((uint32_t)((uint32_t*)hdma->Instance) & (uint32_t)(~0x3FFU)) + 4U);
+ }
+ else
+ {
+ /* return pointer to LISR and LIFCR */
+ hdma->StreamBaseAddress = ((uint32_t)((uint32_t*)hdma->Instance) & (uint32_t)(~0x3FFU));
+ }
+ }
+ else /* BDMA instance(s) */
+ {
+ /* return pointer to ISR and IFCR */
+ hdma->StreamBaseAddress = ((uint32_t)((uint32_t*)hdma->Instance) & (uint32_t)(~0xFFU));
+ }
+
+ return hdma->StreamBaseAddress;
+}
+
+/**
+ * @brief Check compatibility between FIFO threshold level and size of the memory burst
+ * @param hdma: pointer to a DMA_HandleTypeDef structure that contains
+ * the configuration information for the specified DMA Stream.
+ * @retval HAL status
+ */
+static HAL_StatusTypeDef DMA_CheckFifoParam(DMA_HandleTypeDef *hdma)
+{
+ HAL_StatusTypeDef status = HAL_OK;
+
+ /* Memory Data size equal to Byte */
+ if (hdma->Init.MemDataAlignment == DMA_MDATAALIGN_BYTE)
+ {
+ switch (hdma->Init.FIFOThreshold)
+ {
+ case DMA_FIFO_THRESHOLD_1QUARTERFULL:
+ case DMA_FIFO_THRESHOLD_3QUARTERSFULL:
+
+ if ((hdma->Init.MemBurst & DMA_SxCR_MBURST_1) == DMA_SxCR_MBURST_1)
+ {
+ status = HAL_ERROR;
+ }
+ break;
+
+ case DMA_FIFO_THRESHOLD_HALFFULL:
+ if (hdma->Init.MemBurst == DMA_MBURST_INC16)
+ {
+ status = HAL_ERROR;
+ }
+ break;
+
+ case DMA_FIFO_THRESHOLD_FULL:
+ break;
+
+ default:
+ break;
+ }
+ }
+
+ /* Memory Data size equal to Half-Word */
+ else if (hdma->Init.MemDataAlignment == DMA_MDATAALIGN_HALFWORD)
+ {
+ switch (hdma->Init.FIFOThreshold)
+ {
+ case DMA_FIFO_THRESHOLD_1QUARTERFULL:
+ case DMA_FIFO_THRESHOLD_3QUARTERSFULL:
+ status = HAL_ERROR;
+ break;
+
+ case DMA_FIFO_THRESHOLD_HALFFULL:
+ if ((hdma->Init.MemBurst & DMA_SxCR_MBURST_1) == DMA_SxCR_MBURST_1)
+ {
+ status = HAL_ERROR;
+ }
+ break;
+
+ case DMA_FIFO_THRESHOLD_FULL:
+ if (hdma->Init.MemBurst == DMA_MBURST_INC16)
+ {
+ status = HAL_ERROR;
+ }
+ break;
+
+ default:
+ break;
+ }
+ }
+
+ /* Memory Data size equal to Word */
+ else
+ {
+ switch (hdma->Init.FIFOThreshold)
+ {
+ case DMA_FIFO_THRESHOLD_1QUARTERFULL:
+ case DMA_FIFO_THRESHOLD_HALFFULL:
+ case DMA_FIFO_THRESHOLD_3QUARTERSFULL:
+ status = HAL_ERROR;
+ break;
+
+ case DMA_FIFO_THRESHOLD_FULL:
+ if ((hdma->Init.MemBurst & DMA_SxCR_MBURST_1) == DMA_SxCR_MBURST_1)
+ {
+ status = HAL_ERROR;
+ }
+ break;
+
+ default:
+ break;
+ }
+ }
+
+ return status;
+}
+
+/**
+ * @brief Updates the DMA handle with the DMAMUX channel and status mask depending on stream number
+ * @param hdma: pointer to a DMA_HandleTypeDef structure that contains
+ * the configuration information for the specified DMA Stream.
+ * @retval HAL status
+ */
+static void DMA_CalcDMAMUXChannelBaseAndMask(DMA_HandleTypeDef *hdma)
+{
+ uint32_t stream_number;
+ uint32_t stream_baseaddress = (uint32_t)((uint32_t*)hdma->Instance);
+
+ if(IS_BDMA_CHANNEL_DMAMUX_INSTANCE(hdma->Instance) != 0U)
+ {
+ /* BDMA Channels are connected to DMAMUX2 channels */
+ stream_number = (((uint32_t)((uint32_t*)hdma->Instance) & 0xFFU) - 8U) / 20U;
+ hdma->DMAmuxChannel = (DMAMUX_Channel_TypeDef *)((uint32_t)(((uint32_t)DMAMUX2_Channel0) + (stream_number * 4U)));
+ hdma->DMAmuxChannelStatus = DMAMUX2_ChannelStatus;
+ hdma->DMAmuxChannelStatusMask = 1UL << (stream_number & 0x1FU);
+ }
+ else
+ {
+ /* DMA1/DMA2 Streams are connected to DMAMUX1 channels */
+ stream_number = (((uint32_t)((uint32_t*)hdma->Instance) & 0xFFU) - 16U) / 24U;
+
+ if((stream_baseaddress <= ((uint32_t)DMA2_Stream7) ) && \
+ (stream_baseaddress >= ((uint32_t)DMA2_Stream0)))
+ {
+ stream_number += 8U;
+ }
+ hdma->DMAmuxChannel = (DMAMUX_Channel_TypeDef *)((uint32_t)(((uint32_t)DMAMUX1_Channel0) + (stream_number * 4U)));
+ hdma->DMAmuxChannelStatus = DMAMUX1_ChannelStatus;
+ hdma->DMAmuxChannelStatusMask = 1UL << (stream_number & 0x1FU);
+ }
+}
+
+/**
+ * @brief Updates the DMA handle with the DMAMUX request generator params
+ * @param hdma: pointer to a DMA_HandleTypeDef structure that contains
+ * the configuration information for the specified DMA Stream.
+ * @retval HAL status
+ */
+static void DMA_CalcDMAMUXRequestGenBaseAndMask(DMA_HandleTypeDef *hdma)
+{
+ uint32_t request = hdma->Init.Request & DMAMUX_CxCR_DMAREQ_ID;
+
+ if((request >= DMA_REQUEST_GENERATOR0) && (request <= DMA_REQUEST_GENERATOR7))
+ {
+ if(IS_BDMA_CHANNEL_DMAMUX_INSTANCE(hdma->Instance) != 0U)
+ {
+ /* BDMA Channels are connected to DMAMUX2 request generator blocks */
+ hdma->DMAmuxRequestGen = (DMAMUX_RequestGen_TypeDef *)((uint32_t)(((uint32_t)DMAMUX2_RequestGenerator0) + ((request - 1U) * 4U)));
+
+ hdma->DMAmuxRequestGenStatus = DMAMUX2_RequestGenStatus;
+ }
+ else
+ {
+ /* DMA1 and DMA2 Streams use DMAMUX1 request generator blocks */
+ hdma->DMAmuxRequestGen = (DMAMUX_RequestGen_TypeDef *)((uint32_t)(((uint32_t)DMAMUX1_RequestGenerator0) + ((request - 1U) * 4U)));
+
+ hdma->DMAmuxRequestGenStatus = DMAMUX1_RequestGenStatus;
+ }
+
+ hdma->DMAmuxRequestGenStatusMask = 1UL << (request - 1U);
+ }
+}
+
+/**
+ * @}
+ */
+
+#endif /* HAL_DMA_MODULE_ENABLED */
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
|