diff options
Diffstat (limited to 'fw/hid-dials/Drivers/STM32F0xx_HAL_Driver/Src/stm32f0xx_hal_dma.c')
| -rw-r--r-- | fw/hid-dials/Drivers/STM32F0xx_HAL_Driver/Src/stm32f0xx_hal_dma.c | 901 |
1 files changed, 901 insertions, 0 deletions
diff --git a/fw/hid-dials/Drivers/STM32F0xx_HAL_Driver/Src/stm32f0xx_hal_dma.c b/fw/hid-dials/Drivers/STM32F0xx_HAL_Driver/Src/stm32f0xx_hal_dma.c new file mode 100644 index 0000000..b7f91a4 --- /dev/null +++ b/fw/hid-dials/Drivers/STM32F0xx_HAL_Driver/Src/stm32f0xx_hal_dma.c @@ -0,0 +1,901 @@ +/**
+ ******************************************************************************
+ * @file stm32f0xx_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
+ @verbatim
+ ==============================================================================
+ ##### How to use this driver #####
+ ==============================================================================
+ [..]
+ (#) Enable and configure the peripheral to be connected to the DMA Channel
+ (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 Channel, program the required configuration through the following parameters:
+ Transfer Direction, Source and Destination data formats,
+ Circular or Normal mode, Channel Priority level, Source and Destination Increment mode,
+ using HAL_DMA_Init() function.
+
+ (#) 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.
+ *** 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_Channel_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).
+
+ *** DMA HAL driver macros list ***
+ =============================================
+ [..]
+ Below the list of most used macros in DMA HAL driver.
+
+ [..]
+ (@) You can refer to the DMA HAL driver header file for more useful macros
+
+ @endverbatim
+ ******************************************************************************
+ * @attention
+ *
+ * <h2><center>© Copyright (c) 2016 STMicroelectronics.
+ * All rights reserved.</center></h2>
+ *
+ * This software component is licensed by ST under BSD 3-Clause license,
+ * the "License"; You may not use this file except in compliance with the
+ * License. You may obtain a copy of the License at:
+ * opensource.org/licenses/BSD-3-Clause
+ *
+ ******************************************************************************
+ */
+
+/* Includes ------------------------------------------------------------------*/
+#include "stm32f0xx_hal.h"
+
+/** @addtogroup STM32F0xx_HAL_Driver
+ * @{
+ */
+
+
+/** @defgroup DMA DMA
+ * @brief DMA HAL module driver
+ * @{
+ */
+
+#ifdef HAL_DMA_MODULE_ENABLED
+
+/* Private typedef -----------------------------------------------------------*/
+/* Private define ------------------------------------------------------------*/
+/* Private macro -------------------------------------------------------------*/
+/* Private variables ---------------------------------------------------------*/
+/* Private function prototypes -----------------------------------------------*/
+/** @defgroup DMA_Private_Functions DMA Private Functions
+ * @{
+ */
+static void DMA_SetConfig(DMA_HandleTypeDef *hdma, uint32_t SrcAddress, uint32_t DstAddress, uint32_t DataLength);
+static void DMA_CalcBaseAndBitshift(DMA_HandleTypeDef *hdma);
+/**
+ * @}
+ */
+
+/* Exported functions ---------------------------------------------------------*/
+
+/** @defgroup DMA_Exported_Functions DMA Exported Functions
+ * @{
+ */
+
+/** @defgroup DMA_Exported_Functions_Group1 Initialization and de-initialization functions
+ * @brief Initialization and de-initialization functions
+ *
+@verbatim
+ ===============================================================================
+ ##### Initialization and de-initialization functions #####
+ ===============================================================================
+ [..]
+ This section provides functions allowing to initialize the DMA Channel source
+ and destination addresses, incrementation and data sizes, transfer direction,
+ circular/normal mode selection, memory-to-memory mode selection and Channel priority value.
+ [..]
+ The HAL_DMA_Init() function follows the DMA configuration procedures as described in
+ reference manual.
+
+@endverbatim
+ * @{
+ */
+
+/**
+ * @brief Initialize the DMA according to the specified
+ * parameters in the DMA_InitTypeDef and initialize the associated handle.
+ * @param hdma Pointer to a DMA_HandleTypeDef structure that contains
+ * the configuration information for the specified DMA Channel.
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_DMA_Init(DMA_HandleTypeDef *hdma)
+{
+ uint32_t tmp = 0U;
+
+ /* Check the DMA handle allocation */
+ if(NULL == hdma)
+ {
+ 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));
+
+ /* Change DMA peripheral state */
+ hdma->State = HAL_DMA_STATE_BUSY;
+
+ /* Get the CR register value */
+ tmp = hdma->Instance->CCR;
+
+ /* Clear PL, MSIZE, PSIZE, MINC, PINC, CIRC, DIR bits */
+ tmp &= ((uint32_t)~(DMA_CCR_PL | DMA_CCR_MSIZE | DMA_CCR_PSIZE | \
+ DMA_CCR_MINC | DMA_CCR_PINC | DMA_CCR_CIRC | \
+ DMA_CCR_DIR));
+
+ /* Prepare the DMA Channel configuration */
+ tmp |= hdma->Init.Direction |
+ hdma->Init.PeriphInc | hdma->Init.MemInc |
+ hdma->Init.PeriphDataAlignment | hdma->Init.MemDataAlignment |
+ hdma->Init.Mode | hdma->Init.Priority;
+
+ /* Write to DMA Channel CR register */
+ hdma->Instance->CCR = tmp;
+
+ /* Initialize DmaBaseAddress and ChannelIndex parameters used
+ by HAL_DMA_IRQHandler() and HAL_DMA_PollForTransfer() */
+ DMA_CalcBaseAndBitshift(hdma);
+
+ /* Initialise the error code */
+ hdma->ErrorCode = HAL_DMA_ERROR_NONE;
+
+ /* Initialize the DMA state*/
+ hdma->State = HAL_DMA_STATE_READY;
+
+ /* Allocate lock resource and initialize it */
+ hdma->Lock = HAL_UNLOCKED;
+
+ return HAL_OK;
+}
+
+/**
+ * @brief DeInitialize the DMA peripheral
+ * @param hdma pointer to a DMA_HandleTypeDef structure that contains
+ * the configuration information for the specified DMA Channel.
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_DMA_DeInit(DMA_HandleTypeDef *hdma)
+{
+ /* Check the DMA handle allocation */
+ if(NULL == hdma)
+ {
+ return HAL_ERROR;
+ }
+
+ /* Check the parameters */
+ assert_param(IS_DMA_ALL_INSTANCE(hdma->Instance));
+
+ /* Disable the selected DMA Channelx */
+ hdma->Instance->CCR &= ~DMA_CCR_EN;
+
+ /* Reset DMA Channel control register */
+ hdma->Instance->CCR = 0U;
+
+ /* Reset DMA Channel Number of Data to Transfer register */
+ hdma->Instance->CNDTR = 0U;
+
+ /* Reset DMA Channel peripheral address register */
+ hdma->Instance->CPAR = 0U;
+
+ /* Reset DMA Channel memory address register */
+ hdma->Instance->CMAR = 0U;
+
+/* Get DMA Base Address */
+ DMA_CalcBaseAndBitshift(hdma);
+
+ /* Clear all flags */
+ hdma->DmaBaseAddress->IFCR = DMA_FLAG_GL1 << hdma->ChannelIndex;
+
+ /* Clean callbacks */
+ hdma->XferCpltCallback = NULL;
+ hdma->XferHalfCpltCallback = NULL;
+ hdma->XferErrorCallback = NULL;
+ hdma->XferAbortCallback = NULL;
+
+ /* Reset the error code */
+ hdma->ErrorCode = HAL_DMA_ERROR_NONE;
+
+ /* Reset the DMA state */
+ hdma->State = HAL_DMA_STATE_RESET;
+
+ /* Release Lock */
+ __HAL_UNLOCK(hdma);
+
+ return HAL_OK;
+}
+
+/**
+ * @}
+ */
+
+/** @defgroup DMA_Exported_Functions_Group2 Input and Output operation functions
+ * @brief I/O operation functions
+ *
+@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
+ (+) Abort DMA transfer
+ (+) Poll for transfer complete
+ (+) Handle DMA interrupt request
+
+@endverbatim
+ * @{
+ */
+
+/**
+ * @brief Start the DMA Transfer.
+ * @param hdma pointer to a DMA_HandleTypeDef structure that contains
+ * the configuration information for the specified DMA Channel.
+ * @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));
+
+ /* Process locked */
+ __HAL_LOCK(hdma);
+
+ if(HAL_DMA_STATE_READY == hdma->State)
+ {
+ /* Change DMA peripheral state */
+ hdma->State = HAL_DMA_STATE_BUSY;
+
+ hdma->ErrorCode = HAL_DMA_ERROR_NONE;
+
+ /* Disable the peripheral */
+ hdma->Instance->CCR &= ~DMA_CCR_EN;
+
+ /* Configure the source, destination address and the data length */
+ DMA_SetConfig(hdma, SrcAddress, DstAddress, DataLength);
+
+ /* Enable the Peripheral */
+ hdma->Instance->CCR |= DMA_CCR_EN;
+ }
+ else
+ {
+ /* Process Unlocked */
+ __HAL_UNLOCK(hdma);
+
+ /* Remain BUSY */
+ status = HAL_BUSY;
+ }
+
+ 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 Channel.
+ * @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));
+
+ /* Process locked */
+ __HAL_LOCK(hdma);
+
+ if(HAL_DMA_STATE_READY == hdma->State)
+ {
+ /* Change DMA peripheral state */
+ hdma->State = HAL_DMA_STATE_BUSY;
+
+ hdma->ErrorCode = HAL_DMA_ERROR_NONE;
+
+ /* Disable the peripheral */
+ hdma->Instance->CCR &= ~DMA_CCR_EN;
+
+ /* Configure the source, destination address and the data length */
+ DMA_SetConfig(hdma, SrcAddress, DstAddress, DataLength);
+
+ /* Enable the transfer complete, & transfer error interrupts */
+ /* Half transfer interrupt is optional: enable it only if associated callback is available */
+ if(NULL != hdma->XferHalfCpltCallback )
+ {
+ hdma->Instance->CCR |= (DMA_IT_TC | DMA_IT_HT | DMA_IT_TE);
+ }
+ else
+ {
+ hdma->Instance->CCR |= (DMA_IT_TC | DMA_IT_TE);
+ hdma->Instance->CCR &= ~DMA_IT_HT;
+ }
+
+ /* Enable the Peripheral */
+ hdma->Instance->CCR |= DMA_CCR_EN;
+ }
+ else
+ {
+ /* Process Unlocked */
+ __HAL_UNLOCK(hdma);
+
+ /* Remain BUSY */
+ status = HAL_BUSY;
+ }
+
+ return status;
+}
+
+/**
+ * @brief Abort the DMA Transfer.
+ * @param hdma pointer to a DMA_HandleTypeDef structure that contains
+ * the configuration information for the specified DMA Channel.
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_DMA_Abort(DMA_HandleTypeDef *hdma)
+{
+ if(hdma->State != HAL_DMA_STATE_BUSY)
+ {
+ /* no transfer ongoing */
+ hdma->ErrorCode = HAL_DMA_ERROR_NO_XFER;
+
+ /* Process Unlocked */
+ __HAL_UNLOCK(hdma);
+
+ return HAL_ERROR;
+ }
+ else
+ {
+ /* Disable DMA IT */
+ hdma->Instance->CCR &= ~(DMA_IT_TC | DMA_IT_HT | DMA_IT_TE);
+
+ /* Disable the channel */
+ hdma->Instance->CCR &= ~DMA_CCR_EN;
+
+ /* Clear all flags */
+ hdma->DmaBaseAddress->IFCR = (DMA_FLAG_GL1 << hdma->ChannelIndex);
+ }
+ /* Change the DMA state*/
+ hdma->State = HAL_DMA_STATE_READY;
+
+ /* Process Unlocked */
+ __HAL_UNLOCK(hdma);
+
+ return HAL_OK;
+}
+
+/**
+ * @brief Abort 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)
+{
+ HAL_StatusTypeDef status = HAL_OK;
+
+ if(HAL_DMA_STATE_BUSY != hdma->State)
+ {
+ /* no transfer ongoing */
+ hdma->ErrorCode = HAL_DMA_ERROR_NO_XFER;
+
+ status = HAL_ERROR;
+ }
+ else
+ {
+
+ /* Disable DMA IT */
+ hdma->Instance->CCR &= ~(DMA_IT_TC | DMA_IT_HT | DMA_IT_TE);
+
+ /* Disable the channel */
+ hdma->Instance->CCR &= ~DMA_CCR_EN;
+
+ /* Clear all flags */
+ hdma->DmaBaseAddress->IFCR = DMA_FLAG_GL1 << hdma->ChannelIndex;
+
+ /* 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 status;
+}
+
+/**
+ * @brief Polling for transfer complete.
+ * @param hdma pointer to a DMA_HandleTypeDef structure that contains
+ * the configuration information for the specified DMA Channel.
+ * @param CompleteLevel Specifies the DMA level complete.
+ * @param Timeout Timeout duration.
+ * @retval HAL status
+ */
+HAL_StatusTypeDef HAL_DMA_PollForTransfer(DMA_HandleTypeDef *hdma, uint32_t CompleteLevel, uint32_t Timeout)
+{
+ uint32_t temp;
+ uint32_t tickstart = 0U;
+
+ if(HAL_DMA_STATE_BUSY != hdma->State)
+ {
+ /* no transfer ongoing */
+ hdma->ErrorCode = HAL_DMA_ERROR_NO_XFER;
+ __HAL_UNLOCK(hdma);
+ return HAL_ERROR;
+ }
+
+ /* Polling mode not supported in circular mode */
+ if (RESET != (hdma->Instance->CCR & DMA_CCR_CIRC))
+ {
+ hdma->ErrorCode = HAL_DMA_ERROR_NOT_SUPPORTED;
+ return HAL_ERROR;
+ }
+
+ /* Get the level transfer complete flag */
+ if(HAL_DMA_FULL_TRANSFER == CompleteLevel)
+ {
+ /* Transfer Complete flag */
+ temp = DMA_FLAG_TC1 << hdma->ChannelIndex;
+ }
+ else
+ {
+ /* Half Transfer Complete flag */
+ temp = DMA_FLAG_HT1 << hdma->ChannelIndex;
+ }
+
+ /* Get tick */
+ tickstart = HAL_GetTick();
+
+ while(RESET == (hdma->DmaBaseAddress->ISR & temp))
+ {
+ if(RESET != (hdma->DmaBaseAddress->ISR & (DMA_FLAG_TE1 << hdma->ChannelIndex)))
+ {
+ /* When a DMA transfer error occurs */
+ /* A hardware clear of its EN bits is performed */
+ /* Clear all flags */
+ hdma->DmaBaseAddress->IFCR = DMA_FLAG_GL1 << hdma->ChannelIndex;
+
+ /* 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 */
+ if(Timeout != HAL_MAX_DELAY)
+ {
+ if((Timeout == 0U) || ((HAL_GetTick() - tickstart) > Timeout))
+ {
+ /* Update error code */
+ hdma->ErrorCode = HAL_DMA_ERROR_TIMEOUT;
+
+ /* Change the DMA state */
+ hdma->State = HAL_DMA_STATE_READY;
+
+ /* Process Unlocked */
+ __HAL_UNLOCK(hdma);
+
+ return HAL_ERROR;
+ }
+ }
+ }
+
+ if(HAL_DMA_FULL_TRANSFER == CompleteLevel)
+ {
+ /* Clear the transfer complete flag */
+ hdma->DmaBaseAddress->IFCR = DMA_FLAG_TC1 << hdma->ChannelIndex;
+
+ /* The selected Channelx EN bit is cleared (DMA is disabled and
+ all transfers are complete) */
+ hdma->State = HAL_DMA_STATE_READY;
+ }
+ else
+ {
+ /* Clear the half transfer complete flag */
+ hdma->DmaBaseAddress->IFCR = DMA_FLAG_HT1 << hdma->ChannelIndex;
+ }
+
+ /* Process unlocked */
+ __HAL_UNLOCK(hdma);
+
+ return HAL_OK;
+}
+
+/**
+ * @brief Handle DMA interrupt request.
+ * @param hdma pointer to a DMA_HandleTypeDef structure that contains
+ * the configuration information for the specified DMA Channel.
+ * @retval None
+ */
+void HAL_DMA_IRQHandler(DMA_HandleTypeDef *hdma)
+{
+ uint32_t flag_it = hdma->DmaBaseAddress->ISR;
+ uint32_t source_it = hdma->Instance->CCR;
+
+ /* Half Transfer Complete Interrupt management ******************************/
+ if ((RESET != (flag_it & (DMA_FLAG_HT1 << hdma->ChannelIndex))) && (RESET != (source_it & DMA_IT_HT)))
+ {
+ /* Disable the half transfer interrupt if the DMA mode is not CIRCULAR */
+ if((hdma->Instance->CCR & DMA_CCR_CIRC) == 0U)
+ {
+ /* Disable the half transfer interrupt */
+ hdma->Instance->CCR &= ~DMA_IT_HT;
+ }
+
+ /* Clear the half transfer complete flag */
+ hdma->DmaBaseAddress->IFCR = DMA_FLAG_HT1 << hdma->ChannelIndex;
+
+ /* DMA peripheral state is not updated in Half Transfer */
+ /* State is updated only in Transfer Complete case */
+
+ if(hdma->XferHalfCpltCallback != NULL)
+ {
+ /* Half transfer callback */
+ hdma->XferHalfCpltCallback(hdma);
+ }
+ }
+
+ /* Transfer Complete Interrupt management ***********************************/
+ else if ((RESET != (flag_it & (DMA_FLAG_TC1 << hdma->ChannelIndex))) && (RESET != (source_it & DMA_IT_TC)))
+ {
+ if((hdma->Instance->CCR & DMA_CCR_CIRC) == 0U)
+ {
+ /* Disable the transfer complete & transfer error interrupts */
+ /* if the DMA mode is not CIRCULAR */
+ hdma->Instance->CCR &= ~(DMA_IT_TC | DMA_IT_TE);
+
+ /* Change the DMA state */
+ hdma->State = HAL_DMA_STATE_READY;
+ }
+
+ /* Clear the transfer complete flag */
+ hdma->DmaBaseAddress->IFCR = DMA_FLAG_TC1 << hdma->ChannelIndex;
+
+ /* Process Unlocked */
+ __HAL_UNLOCK(hdma);
+
+ if(hdma->XferCpltCallback != NULL)
+ {
+ /* Transfer complete callback */
+ hdma->XferCpltCallback(hdma);
+ }
+ }
+
+ /* Transfer Error Interrupt management ***************************************/
+ else if (( RESET != (flag_it & (DMA_FLAG_TE1 << hdma->ChannelIndex))) && (RESET != (source_it & DMA_IT_TE)))
+ {
+ /* When a DMA transfer error occurs */
+ /* A hardware clear of its EN bits is performed */
+ /* Then, disable all DMA interrupts */
+ hdma->Instance->CCR &= ~(DMA_IT_TC | DMA_IT_HT | DMA_IT_TE);
+
+ /* Clear all flags */
+ hdma->DmaBaseAddress->IFCR = DMA_FLAG_GL1 << hdma->ChannelIndex;
+
+ /* 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);
+ }
+ }
+}
+
+/**
+ * @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 identifer
+ * a HAL_DMA_CallbackIDTypeDef ENUM 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;
+
+ /* 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_ERROR_CB_ID:
+ hdma->XferErrorCallback = pCallback;
+ break;
+
+ case HAL_DMA_XFER_ABORT_CB_ID:
+ hdma->XferAbortCallback = pCallback;
+ break;
+
+ default:
+ status = HAL_ERROR;
+ break;
+ }
+ }
+ else
+ {
+ 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 identifer
+ * 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;
+
+ /* 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_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->XferErrorCallback = NULL;
+ hdma->XferAbortCallback = NULL;
+ break;
+
+ default:
+ status = HAL_ERROR;
+ break;
+ }
+ }
+ else
+ {
+ status = HAL_ERROR;
+ }
+
+ /* Release Lock */
+ __HAL_UNLOCK(hdma);
+
+ return status;
+}
+
+/**
+ * @}
+ */
+
+/** @defgroup DMA_Exported_Functions_Group3 Peripheral State functions
+ * @brief Peripheral State functions
+ *
+@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 Channel.
+ * @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 Channel.
+ * @retval DMA Error Code
+ */
+uint32_t HAL_DMA_GetError(DMA_HandleTypeDef *hdma)
+{
+ return hdma->ErrorCode;
+}
+
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+/** @addtogroup DMA_Private_Functions
+ * @{
+ */
+
+/**
+ * @brief Set the DMA Transfer parameters.
+ * @param hdma pointer to a DMA_HandleTypeDef structure that contains
+ * the configuration information for the specified DMA Channel.
+ * @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
+ */
+static void DMA_SetConfig(DMA_HandleTypeDef *hdma, uint32_t SrcAddress, uint32_t DstAddress, uint32_t DataLength)
+{
+ /* Clear all flags */
+ hdma->DmaBaseAddress->IFCR = (DMA_FLAG_GL1 << hdma->ChannelIndex);
+
+ /* Configure DMA Channel data length */
+ hdma->Instance->CNDTR = DataLength;
+
+ /* Memory to Peripheral */
+ if((hdma->Init.Direction) == DMA_MEMORY_TO_PERIPH)
+ {
+ /* Configure DMA Channel destination address */
+ hdma->Instance->CPAR = DstAddress;
+
+ /* Configure DMA Channel source address */
+ hdma->Instance->CMAR = SrcAddress;
+ }
+ /* Peripheral to Memory */
+ else
+ {
+ /* Configure DMA Channel source address */
+ hdma->Instance->CPAR = SrcAddress;
+
+ /* Configure DMA Channel destination address */
+ hdma->Instance->CMAR = DstAddress;
+ }
+}
+
+/**
+ * @brief set the DMA base address and channel index depending on DMA instance
+ * @param hdma pointer to a DMA_HandleTypeDef structure that contains
+ * the configuration information for the specified DMA Stream.
+ * @retval None
+ */
+static void DMA_CalcBaseAndBitshift(DMA_HandleTypeDef *hdma)
+{
+#if defined (DMA2)
+ /* calculation of the channel index */
+ if ((uint32_t)(hdma->Instance) < (uint32_t)(DMA2_Channel1))
+ {
+ /* DMA1 */
+ hdma->ChannelIndex = (((uint32_t)hdma->Instance - (uint32_t)DMA1_Channel1) / ((uint32_t)DMA1_Channel2 - (uint32_t)DMA1_Channel1)) << 2U;
+ hdma->DmaBaseAddress = DMA1;
+ }
+ else
+ {
+ /* DMA2 */
+ hdma->ChannelIndex = (((uint32_t)hdma->Instance - (uint32_t)DMA2_Channel1) / ((uint32_t)DMA2_Channel2 - (uint32_t)DMA2_Channel1)) << 2U;
+ hdma->DmaBaseAddress = DMA2;
+ }
+#else
+ /* calculation of the channel index */
+ /* DMA1 */
+ hdma->ChannelIndex = (((uint32_t)hdma->Instance - (uint32_t)DMA1_Channel1) / ((uint32_t)DMA1_Channel2 - (uint32_t)DMA1_Channel1)) << 2U;
+ hdma->DmaBaseAddress = DMA1;
+#endif
+}
+
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+#endif /* HAL_DMA_MODULE_ENABLED */
+
+/**
+ * @}
+ */
+
+ /**
+ * @}
+ */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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