Init
This commit is contained in:
307
Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal_dma_ex.c
Normal file
307
Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal_dma_ex.c
Normal file
@ -0,0 +1,307 @@
|
||||
/**
|
||||
******************************************************************************
|
||||
* @file stm32l4xx_hal_dma_ex.c
|
||||
* @author MCD Application Team
|
||||
* @brief DMA Extension HAL module driver
|
||||
* This file provides firmware functions to manage the following
|
||||
* functionalities of the DMA Extension peripheral:
|
||||
* + Extended features 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 #####
|
||||
==============================================================================
|
||||
[..]
|
||||
The DMA Extension HAL driver can be used as follows:
|
||||
|
||||
(+) Configure the DMA_MUX Synchronization Block using HAL_DMAEx_ConfigMuxSync function.
|
||||
(+) Configure the DMA_MUX Request Generator Block using HAL_DMAEx_ConfigMuxRequestGenerator function.
|
||||
Functions HAL_DMAEx_EnableMuxRequestGenerator and HAL_DMAEx_DisableMuxRequestGenerator can then be used
|
||||
to respectively enable/disable the request generator.
|
||||
|
||||
(+) To handle the DMAMUX Interrupts, the function HAL_DMAEx_MUX_IRQHandler should be called from
|
||||
the DMAMUX IRQ handler i.e DMAMUX1_OVR_IRQHandler.
|
||||
As only one interrupt line is available for all DMAMUX channels and request generators , HAL_DMAEx_MUX_IRQHandler should be
|
||||
called with, as parameter, the appropriate DMA handle as many as used DMAs in the user project
|
||||
(exception done if a given DMA is not using the DMAMUX SYNC block neither a request generator)
|
||||
|
||||
-@- In Memory-to-Memory transfer mode, Multi (Double) Buffer mode is not allowed.
|
||||
-@- When Multi (Double) Buffer mode is enabled, the transfer is circular by default.
|
||||
-@- In Multi (Double) buffer mode, it is possible to update the base address for
|
||||
the AHB memory port on the fly (DMA_CM0ARx or DMA_CM1ARx) when the channel is enabled.
|
||||
|
||||
|
||||
@endverbatim
|
||||
******************************************************************************
|
||||
*/
|
||||
|
||||
/* Includes ------------------------------------------------------------------*/
|
||||
#include "stm32l4xx_hal.h"
|
||||
|
||||
#if defined(DMAMUX1)
|
||||
|
||||
/** @addtogroup STM32L4xx_HAL_Driver
|
||||
* @{
|
||||
*/
|
||||
|
||||
/** @defgroup DMAEx DMAEx
|
||||
* @brief DMA Extended HAL module driver
|
||||
* @{
|
||||
*/
|
||||
|
||||
#ifdef HAL_DMA_MODULE_ENABLED
|
||||
|
||||
/* Private typedef -----------------------------------------------------------*/
|
||||
/* Private define ------------------------------------------------------------*/
|
||||
/* Private macro -------------------------------------------------------------*/
|
||||
/* Private variables ---------------------------------------------------------*/
|
||||
/* Private Constants ---------------------------------------------------------*/
|
||||
/* Private function prototypes -----------------------------------------------*/
|
||||
/* Private functions ---------------------------------------------------------*/
|
||||
|
||||
|
||||
/** @defgroup DMAEx_Exported_Functions DMAEx Exported Functions
|
||||
* @{
|
||||
*/
|
||||
|
||||
/** @defgroup DMAEx_Exported_Functions_Group1 DMAEx Extended features functions
|
||||
* @brief Extended features functions
|
||||
*
|
||||
@verbatim
|
||||
===============================================================================
|
||||
##### Extended features functions #####
|
||||
===============================================================================
|
||||
[..] This section provides functions allowing to:
|
||||
|
||||
(+) Configure the DMAMUX Synchronization Block using HAL_DMAEx_ConfigMuxSync function.
|
||||
(+) Configure the DMAMUX Request Generator Block using HAL_DMAEx_ConfigMuxRequestGenerator function.
|
||||
Functions HAL_DMAEx_EnableMuxRequestGenerator and HAL_DMAEx_DisableMuxRequestGenerator can then be used
|
||||
to respectively enable/disable the request generator.
|
||||
|
||||
@endverbatim
|
||||
* @{
|
||||
*/
|
||||
|
||||
|
||||
/**
|
||||
* @brief Configure the DMAMUX synchronization parameters for a given DMA channel (instance).
|
||||
* @param hdma pointer to a DMA_HandleTypeDef structure that contains
|
||||
* the configuration information for the specified DMA channel.
|
||||
* @param pSyncConfig : pointer to HAL_DMA_MuxSyncConfigTypeDef : contains the DMAMUX synchronization parameters
|
||||
* @retval HAL status
|
||||
*/
|
||||
HAL_StatusTypeDef HAL_DMAEx_ConfigMuxSync(DMA_HandleTypeDef *hdma, HAL_DMA_MuxSyncConfigTypeDef *pSyncConfig)
|
||||
{
|
||||
/* Check the parameters */
|
||||
assert_param(IS_DMA_ALL_INSTANCE(hdma->Instance));
|
||||
|
||||
assert_param(IS_DMAMUX_SYNC_SIGNAL_ID(pSyncConfig->SyncSignalID));
|
||||
|
||||
assert_param(IS_DMAMUX_SYNC_POLARITY(pSyncConfig-> SyncPolarity));
|
||||
assert_param(IS_DMAMUX_SYNC_STATE(pSyncConfig->SyncEnable));
|
||||
assert_param(IS_DMAMUX_SYNC_EVENT(pSyncConfig->EventEnable));
|
||||
assert_param(IS_DMAMUX_SYNC_REQUEST_NUMBER(pSyncConfig->RequestNumber));
|
||||
|
||||
/*Check if the DMA state is ready */
|
||||
if(hdma->State == HAL_DMA_STATE_READY)
|
||||
{
|
||||
/* Process Locked */
|
||||
__HAL_LOCK(hdma);
|
||||
|
||||
/* Set the new synchronization parameters (and keep the request ID filled during the Init)*/
|
||||
MODIFY_REG( hdma->DMAmuxChannel->CCR, \
|
||||
(~DMAMUX_CxCR_DMAREQ_ID) , \
|
||||
((pSyncConfig->SyncSignalID) << DMAMUX_CxCR_SYNC_ID_Pos) | ((pSyncConfig->RequestNumber - 1U) << DMAMUX_CxCR_NBREQ_Pos) | \
|
||||
pSyncConfig->SyncPolarity | ((uint32_t)pSyncConfig->SyncEnable << DMAMUX_CxCR_SE_Pos) | \
|
||||
((uint32_t)pSyncConfig->EventEnable << DMAMUX_CxCR_EGE_Pos));
|
||||
|
||||
/* Process UnLocked */
|
||||
__HAL_UNLOCK(hdma);
|
||||
|
||||
return HAL_OK;
|
||||
}
|
||||
else
|
||||
{
|
||||
/*DMA State not Ready*/
|
||||
return HAL_ERROR;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief Configure the DMAMUX request generator block used by the given DMA channel (instance).
|
||||
* @param hdma pointer to a DMA_HandleTypeDef structure that contains
|
||||
* the configuration information for the specified DMA channel.
|
||||
* @param pRequestGeneratorConfig : pointer to HAL_DMA_MuxRequestGeneratorConfigTypeDef :
|
||||
* contains the request generator parameters.
|
||||
*
|
||||
* @retval HAL status
|
||||
*/
|
||||
HAL_StatusTypeDef HAL_DMAEx_ConfigMuxRequestGenerator (DMA_HandleTypeDef *hdma, HAL_DMA_MuxRequestGeneratorConfigTypeDef *pRequestGeneratorConfig)
|
||||
{
|
||||
/* Check the parameters */
|
||||
assert_param(IS_DMA_ALL_INSTANCE(hdma->Instance));
|
||||
|
||||
assert_param(IS_DMAMUX_REQUEST_GEN_SIGNAL_ID(pRequestGeneratorConfig->SignalID));
|
||||
|
||||
assert_param(IS_DMAMUX_REQUEST_GEN_POLARITY(pRequestGeneratorConfig->Polarity));
|
||||
assert_param(IS_DMAMUX_REQUEST_GEN_REQUEST_NUMBER(pRequestGeneratorConfig->RequestNumber));
|
||||
|
||||
/* check if the DMA state is ready
|
||||
and DMA is using a DMAMUX request generator block
|
||||
*/
|
||||
if((hdma->State == HAL_DMA_STATE_READY) && (hdma->DMAmuxRequestGen != 0U))
|
||||
{
|
||||
/* Process Locked */
|
||||
__HAL_LOCK(hdma);
|
||||
|
||||
/* Set the request generator new parameters */
|
||||
hdma->DMAmuxRequestGen->RGCR = pRequestGeneratorConfig->SignalID | \
|
||||
((pRequestGeneratorConfig->RequestNumber - 1U) << DMAMUX_RGxCR_GNBREQ_Pos)| \
|
||||
pRequestGeneratorConfig->Polarity;
|
||||
/* Process UnLocked */
|
||||
__HAL_UNLOCK(hdma);
|
||||
|
||||
return HAL_OK;
|
||||
}
|
||||
else
|
||||
{
|
||||
return HAL_ERROR;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief Enable the DMAMUX request generator block used by the given DMA channel (instance).
|
||||
* @param hdma pointer to a DMA_HandleTypeDef structure that contains
|
||||
* the configuration information for the specified DMA channel.
|
||||
* @retval HAL status
|
||||
*/
|
||||
HAL_StatusTypeDef HAL_DMAEx_EnableMuxRequestGenerator (DMA_HandleTypeDef *hdma)
|
||||
{
|
||||
/* Check the parameters */
|
||||
assert_param(IS_DMA_ALL_INSTANCE(hdma->Instance));
|
||||
|
||||
/* check if the DMA state is ready
|
||||
and DMA is using a DMAMUX request generator block
|
||||
*/
|
||||
if((hdma->State != HAL_DMA_STATE_RESET) && (hdma->DMAmuxRequestGen != 0))
|
||||
{
|
||||
|
||||
/* Enable the request generator*/
|
||||
hdma->DMAmuxRequestGen->RGCR |= DMAMUX_RGxCR_GE;
|
||||
|
||||
return HAL_OK;
|
||||
}
|
||||
else
|
||||
{
|
||||
return HAL_ERROR;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief Disable the DMAMUX request generator block used by the given DMA channel (instance).
|
||||
* @param hdma pointer to a DMA_HandleTypeDef structure that contains
|
||||
* the configuration information for the specified DMA channel.
|
||||
* @retval HAL status
|
||||
*/
|
||||
HAL_StatusTypeDef HAL_DMAEx_DisableMuxRequestGenerator (DMA_HandleTypeDef *hdma)
|
||||
{
|
||||
/* Check the parameters */
|
||||
assert_param(IS_DMA_ALL_INSTANCE(hdma->Instance));
|
||||
|
||||
/* check if the DMA state is ready
|
||||
and DMA is using a DMAMUX request generator block
|
||||
*/
|
||||
if((hdma->State != HAL_DMA_STATE_RESET) && (hdma->DMAmuxRequestGen != 0))
|
||||
{
|
||||
|
||||
/* Disable the request generator*/
|
||||
hdma->DMAmuxRequestGen->RGCR &= ~DMAMUX_RGxCR_GE;
|
||||
|
||||
return HAL_OK;
|
||||
}
|
||||
else
|
||||
{
|
||||
return HAL_ERROR;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief Handles DMAMUX interrupt request.
|
||||
* @param hdma pointer to a DMA_HandleTypeDef structure that contains
|
||||
* the configuration information for the specified DMA channel.
|
||||
* @retval None
|
||||
*/
|
||||
void HAL_DMAEx_MUX_IRQHandler(DMA_HandleTypeDef *hdma)
|
||||
{
|
||||
/* Check for DMAMUX Synchronization overrun */
|
||||
if((hdma->DMAmuxChannelStatus->CSR & hdma->DMAmuxChannelStatusMask) != 0U)
|
||||
{
|
||||
/* Disable the synchro overrun interrupt */
|
||||
hdma->DMAmuxChannel->CCR &= ~DMAMUX_CxCR_SOIE;
|
||||
|
||||
/* Clear the DMAMUX synchro overrun flag */
|
||||
hdma->DMAmuxChannelStatus->CFR = hdma->DMAmuxChannelStatusMask;
|
||||
|
||||
/* Update error code */
|
||||
hdma->ErrorCode |= HAL_DMA_ERROR_SYNC;
|
||||
|
||||
if(hdma->XferErrorCallback != NULL)
|
||||
{
|
||||
/* Transfer error callback */
|
||||
hdma->XferErrorCallback(hdma);
|
||||
}
|
||||
}
|
||||
|
||||
if(hdma->DMAmuxRequestGen != 0)
|
||||
{
|
||||
/* if using a DMAMUX request generator block Check for DMAMUX request generator overrun */
|
||||
if((hdma->DMAmuxRequestGenStatus->RGSR & hdma->DMAmuxRequestGenStatusMask) != 0U)
|
||||
{
|
||||
/* Disable the request gen overrun interrupt */
|
||||
hdma->DMAmuxRequestGen->RGCR &= ~DMAMUX_RGxCR_OIE;
|
||||
|
||||
/* Clear the DMAMUX request generator overrun flag */
|
||||
hdma->DMAmuxRequestGenStatus->RGCFR = hdma->DMAmuxRequestGenStatusMask;
|
||||
|
||||
/* Update error code */
|
||||
hdma->ErrorCode |= HAL_DMA_ERROR_REQGEN;
|
||||
|
||||
if(hdma->XferErrorCallback != NULL)
|
||||
{
|
||||
/* Transfer error callback */
|
||||
hdma->XferErrorCallback(hdma);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* @}
|
||||
*/
|
||||
|
||||
/**
|
||||
* @}
|
||||
*/
|
||||
|
||||
#endif /* HAL_DMA_MODULE_ENABLED */
|
||||
|
||||
/**
|
||||
* @}
|
||||
*/
|
||||
|
||||
/**
|
||||
* @}
|
||||
*/
|
||||
|
||||
#endif /* DMAMUX1 */
|
||||
Reference in New Issue
Block a user