Diff: targets/TARGET_STM/TARGET_STM32L4/device/stm32l4xx_hal_dma.c

Revision:

149:156823d33999

Parent:

144:ef7eb2e8f9f7

Child:

167:e84263d55307

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/targets/TARGET_STM/TARGET_STM32L4/device/stm32l4xx_hal_dma.c	Fri Oct 28 11:17:30 2016 +0100
@@ -0,0 +1,938 @@
+/**
+  ******************************************************************************
+  * @file    stm32l4xx_hal_dma.c
+  * @author  MCD Application Team
+  * @version V1.5.1
+  * @date    31-May-2016
+  * @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 the Reference manual for connection between peripherals
+       and DMA requests.
+
+   (#) For a given Channel, program the required configuration through the following parameters:
+       Channel request, 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_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.
+
+       (+) __HAL_DMA_ENABLE: Enable the specified DMA Channel.
+       (+) __HAL_DMA_DISABLE: Disable the specified DMA Channel.
+       (+) __HAL_DMA_GET_FLAG: Get the DMA Channel pending flags.
+       (+) __HAL_DMA_CLEAR_FLAG: Clear the DMA Channel pending flags.
+       (+) __HAL_DMA_ENABLE_IT: Enable the specified DMA Channel interrupts.
+       (+) __HAL_DMA_DISABLE_IT: Disable the specified DMA Channel interrupts.
+       (+) __HAL_DMA_GET_IT_SOURCE: Check whether the specified DMA Channel interrupt has occurred or not. 
+
+     [..] 
+      (@) You can refer to the DMA HAL driver header file for more useful macros  
+
+  @endverbatim
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT(c) 2016 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.
+  *
+  ******************************************************************************
+  */
+
+/* Includes ------------------------------------------------------------------*/
+#include "stm32l4xx_hal.h"
+
+/** @addtogroup STM32L4xx_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);
+/**
+  * @}
+  */
+
+/* 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 = 0;
+  
+  /* Check the DMA handle allocation */
+  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(hdma->Init.Direction != DMA_MEMORY_TO_MEMORY)
+  {
+    assert_param(IS_DMA_ALL_REQUEST(hdma->Init.Request));
+  }
+  
+  /* 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)) << 2;
+    hdma->DmaBaseAddress = DMA1;
+  }
+  else 
+  {
+    /* DMA2 */
+    hdma->ChannelIndex = (((uint32_t)hdma->Instance - (uint32_t)DMA2_Channel1) / ((uint32_t)DMA2_Channel2 - (uint32_t)DMA2_Channel1)) << 2;
+    hdma->DmaBaseAddress = DMA2;
+  }
+    
+  /* 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;
+
+  /* Set request selection */
+  if(hdma->Init.Direction != DMA_MEMORY_TO_MEMORY)
+  {
+    /* Write to DMA channel selection register */
+    if (DMA1 == hdma->DmaBaseAddress)
+    {
+      /* Reset request selection for DMA1 Channelx */
+      DMA1_CSELR->CSELR &= ~(DMA_CSELR_C1S << hdma->ChannelIndex);
+
+      /* Configure request selection for DMA1 Channelx */
+      DMA1_CSELR->CSELR |= (uint32_t) (hdma->Init.Request << (hdma->ChannelIndex)); 
+    }
+    else /* DMA2 */
+    {
+      /* Reset request selection for DMA2 Channelx */
+      DMA2_CSELR->CSELR &= ~(DMA_CSELR_C1S << hdma->ChannelIndex);
+     
+      /* Configure request selection for DMA2 Channelx */
+      DMA2_CSELR->CSELR |= (uint32_t) (hdma->Init.Request << (hdma->ChannelIndex)); 
+    }
+  }
+
+  /* Clean callbacks */
+  hdma->XferCpltCallback = NULL;
+  hdma->XferHalfCpltCallback = NULL;
+  hdma->XferErrorCallback = NULL;
+  hdma->XferAbortCallback = NULL;
+
+  /* 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(hdma == NULL)
+  {
+    return HAL_ERROR;
+  }
+  
+  /* Check the parameters */
+  assert_param(IS_DMA_ALL_INSTANCE(hdma->Instance));
+
+  /* Disable the selected DMA Channelx */
+  __HAL_DMA_DISABLE(hdma);
+
+  /* Reset DMA Channel control register */
+  hdma->Instance->CCR  = 0;
+
+  /* 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)) << 2;
+    hdma->DmaBaseAddress = DMA1;
+  }
+  else 
+  {
+    /* DMA2 */
+    hdma->ChannelIndex = (((uint32_t)hdma->Instance - (uint32_t)DMA2_Channel1) / ((uint32_t)DMA2_Channel2 - (uint32_t)DMA2_Channel1)) << 2;
+    hdma->DmaBaseAddress = DMA2;
+  }
+
+
+  /* Clear all flags */
+  hdma->DmaBaseAddress->IFCR |= ((DMA_ISR_GIF1) << (hdma->ChannelIndex));
+  
+  /* Reset DMA channel selection register */
+  if (DMA1 == hdma->DmaBaseAddress)
+  {
+    /* DMA1 */
+    DMA1_CSELR->CSELR &= ~(DMA_CSELR_C1S << (hdma->ChannelIndex)); 
+  }
+  else  
+  {
+    /* DMA2 */
+    DMA2_CSELR->CSELR &= ~(DMA_CSELR_C1S << (hdma->ChannelIndex)); 
+  }
+
+  /* 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;
+}
+
+/**
+  * @}
+  */
+
+/** @defgroup DMA_Exported_Functions_Group2 Input and Output operation functions
+ *  @brief   Input and Output 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 */
+    __HAL_DMA_DISABLE(hdma);
+    
+    /* Configure the source, destination address and the data length & clear flags*/
+    DMA_SetConfig(hdma, SrcAddress, DstAddress, DataLength);
+    
+    /* Enable the Peripheral */
+    __HAL_DMA_ENABLE(hdma);
+  }
+  else
+  {
+   /* Process Unlocked */
+   __HAL_UNLOCK(hdma);  
+   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 */
+    __HAL_DMA_DISABLE(hdma);
+    
+    /* Configure the source, destination address and the data length & clear flags*/
+    DMA_SetConfig(hdma, SrcAddress, DstAddress, DataLength);
+    
+    /* Enable the transfer complete interrupt */
+    /* Enable the transfer Error interrupt */
+    if(NULL != hdma->XferHalfCpltCallback )
+    {
+      /* Enable the Half transfer complete interrupt as well */
+      __HAL_DMA_ENABLE_IT(hdma, (DMA_IT_TC | DMA_IT_HT | DMA_IT_TE));
+    }
+    else
+    {
+      __HAL_DMA_DISABLE_IT(hdma, DMA_IT_HT);
+      __HAL_DMA_ENABLE_IT(hdma, (DMA_IT_TC | DMA_IT_TE));
+    }
+    /* Enable the Peripheral */
+    __HAL_DMA_ENABLE(hdma);
+  }
+  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)
+{
+  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 */
+    __HAL_DMA_DISABLE_IT(hdma, (DMA_IT_TC | DMA_IT_HT | DMA_IT_TE));
+    
+    /* Disable the channel */
+    __HAL_DMA_DISABLE(hdma);
+    
+    /* Clear all flags */
+    hdma->DmaBaseAddress->IFCR = ((DMA_ISR_GIF1) << (hdma->ChannelIndex));
+
+    /* Change the DMA state */
+    hdma->State = HAL_DMA_STATE_READY;
+
+    /* Process Unlocked */
+    __HAL_UNLOCK(hdma);      
+  }
+  return status; 
+}
+
+/**
+  * @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)
+{  
+  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 */
+    __HAL_DMA_DISABLE_IT(hdma, (DMA_IT_TC | DMA_IT_HT | DMA_IT_TE));
+    
+    /* Disable the channel */
+    __HAL_DMA_DISABLE(hdma);
+    
+    /* Clear all flags */
+    hdma->DmaBaseAddress->IFCR |= ((DMA_ISR_GIF1) << (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 = 0;
+
+  if(HAL_DMA_STATE_BUSY != hdma->State)
+  {
+    /* no transfer ongoing */
+    hdma->ErrorCode = HAL_DMA_ERROR_NO_XFER;
+
+    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_ISR_GIF1) << (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 == 0) || ((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) == 0)
+      {
+        /* Disable the half transfer interrupt */
+        __HAL_DMA_DISABLE_IT(hdma, DMA_IT_HT);
+      }
+      /* Clear the half transfer complete flag */
+      hdma->DmaBaseAddress->IFCR  |= (DMA_ISR_HTIF1 << hdma->ChannelIndex);
+
+      /* 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 ((RESET != (flag_it & (DMA_FLAG_TC1 << hdma->ChannelIndex))) && (RESET != (source_it & DMA_IT_TC)))
+  {
+    if((hdma->Instance->CCR & DMA_CCR_CIRC) == 0)
+    {
+      /* Disable the transfer complete and error interrupt */
+      __HAL_DMA_DISABLE_IT(hdma, (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_ISR_TCIF1 << 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 */
+    /* Disable ALL DMA IT */
+    __HAL_DMA_DISABLE_IT(hdma, (DMA_IT_TC | DMA_IT_HT | DMA_IT_TE));
+
+    /* Clear all flags */
+    hdma->DmaBaseAddress->IFCR  |= (DMA_ISR_GIF1 << 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);
+    }
+  }
+  return;
+}
+
+/**
+  * @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 callbacsk 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 and Errors functions
+ *  @brief    Peripheral State and Errors functions
+ *
+@verbatim
+ ===============================================================================
+            ##### Peripheral State and Errors functions #####
+ ===============================================================================  
+    [..]
+    This subsection provides functions allowing to
+      (+) Check the DMA state
+      (+) Get error code
+
+@endverbatim
+  * @{
+  */
+
+/**
+  * @brief  Return the DMA hande 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 DMA handle state */
+  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  Sets the DMA Transfer parameter.
+  * @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_ISR_GIF1 << hdma->ChannelIndex);
+  
+  /* Configure DMA Channel data length */
+  hdma->Instance->CNDTR = DataLength;
+
+  /* Peripheral to Memory */
+  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;
+  }
+  /* Memory to Peripheral */
+  else
+  {
+    /* Configure DMA Channel source address */
+    hdma->Instance->CPAR = SrcAddress;
+
+    /* Configure DMA Channel destination address */
+    hdma->Instance->CMAR = DstAddress;
+  }
+}
+
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+
+#endif /* HAL_DMA_MODULE_ENABLED */
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/