Mercurial > public > ostc4
view Common/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma_ex.c @ 729:d646a0f724a7
Added auto detection functionality for sensors connected to the external interface:
O2 sensors may be connected to the analog input as well as to the UART. The GUI visualization provides three slots for ppo2 display. Beside detection of sensor kind the task of the function is to place the available sensor in this three slots. CO2 has its own communication slot outside the ppo2 channel.
The result of the automatic detection is communicated via the sensor map.
author | Ideenmodellierer |
---|---|
date | Sat, 14 Jan 2023 20:46:17 +0100 |
parents | c78bcbd5deda |
children |
line wrap: on
line source
/** ****************************************************************************** * @file stm32f4xx_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 * @verbatim ============================================================================== ##### How to use this driver ##### ============================================================================== [..] The DMA Extension HAL driver can be used as follows: (#) Start a multi buffer transfer using the HAL_DMA_MultiBufferStart() function for polling mode or HAL_DMA_MultiBufferStart_IT() for interrupt mode. -@- 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_SxM0AR or DMA_SxM1AR) when the stream is enabled. @endverbatim ****************************************************************************** * @attention * * <h2><center>© COPYRIGHT(c) 2017 STMicroelectronics</center></h2> * * Redistribution and use in source and binary forms, with or without modification, * are permitted provided that the following conditions are met: * 1. Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright notice, * this list of conditions and the following disclaimer in the documentation * and/or other materials provided with the distribution. * 3. Neither the name of STMicroelectronics nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * ****************************************************************************** */ /* Includes ------------------------------------------------------------------*/ #include "stm32f4xx_hal.h" /** @addtogroup STM32F4xx_HAL_Driver * @{ */ /** @defgroup DMAEx DMAEx * @brief DMA Extended HAL module driver * @{ */ #ifdef HAL_DMA_MODULE_ENABLED /* Private types -------------------------------------------------------------*/ /* Private variables ---------------------------------------------------------*/ /* Private Constants ---------------------------------------------------------*/ /* Private macros ------------------------------------------------------------*/ /* Private functions ---------------------------------------------------------*/ /** @addtogroup DMAEx_Private_Functions * @{ */ static void DMA_MultiBufferSetConfig(DMA_HandleTypeDef *hdma, uint32_t SrcAddress, uint32_t DstAddress, uint32_t DataLength); /** * @} */ /* Exported functions ---------------------------------------------------------*/ /** @addtogroup DMAEx_Exported_Functions * @{ */ /** @addtogroup DMAEx_Exported_Functions_Group1 * @verbatim =============================================================================== ##### Extended features functions ##### =============================================================================== [..] This section provides functions allowing to: (+) Configure the source, destination address and data length and Start MultiBuffer DMA transfer (+) Configure the source, destination address and data length and Start MultiBuffer DMA transfer with interrupt (+) Change on the fly the memory0 or memory1 address. @endverbatim * @{ */ /** * @brief Starts the multi_buffer 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 SecondMemAddress The second memory Buffer address in case of multi buffer Transfer * @param DataLength The length of data to be transferred from source to destination * @retval HAL status */ HAL_StatusTypeDef HAL_DMAEx_MultiBufferStart(DMA_HandleTypeDef *hdma, uint32_t SrcAddress, uint32_t DstAddress, uint32_t SecondMemAddress, uint32_t DataLength) { HAL_StatusTypeDef status = HAL_OK; /* Check the parameters */ assert_param(IS_DMA_BUFFER_SIZE(DataLength)); /* Memory-to-memory transfer not supported in double buffering mode */ if (hdma->Init.Direction == DMA_MEMORY_TO_MEMORY) { hdma->ErrorCode = HAL_DMA_ERROR_NOT_SUPPORTED; status = HAL_ERROR; } else { /* Process Locked */ __HAL_LOCK(hdma); if(HAL_DMA_STATE_READY == hdma->State) { /* Change DMA peripheral state */ hdma->State = HAL_DMA_STATE_BUSY; /* Enable the double buffer mode */ hdma->Instance->CR |= (uint32_t)DMA_SxCR_DBM; /* Configure DMA Stream destination address */ hdma->Instance->M1AR = SecondMemAddress; /* Configure the source, destination address and the data length */ DMA_MultiBufferSetConfig(hdma, SrcAddress, DstAddress, DataLength); /* Enable the peripheral */ __HAL_DMA_ENABLE(hdma); } else { /* Return error status */ status = HAL_BUSY; } } return status; } /** * @brief Starts the multi_buffer 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 SecondMemAddress The second memory Buffer address in case of multi buffer Transfer * @param DataLength The length of data to be transferred from source to destination * @retval HAL status */ HAL_StatusTypeDef HAL_DMAEx_MultiBufferStart_IT(DMA_HandleTypeDef *hdma, uint32_t SrcAddress, uint32_t DstAddress, uint32_t SecondMemAddress, uint32_t DataLength) { HAL_StatusTypeDef status = HAL_OK; /* Check the parameters */ assert_param(IS_DMA_BUFFER_SIZE(DataLength)); /* Memory-to-memory transfer not supported in double buffering mode */ if (hdma->Init.Direction == DMA_MEMORY_TO_MEMORY) { hdma->ErrorCode = HAL_DMA_ERROR_NOT_SUPPORTED; return HAL_ERROR; } /* Check callback functions */ if ((NULL == hdma->XferCpltCallback) || (NULL == hdma->XferM1CpltCallback) || (NULL == hdma->XferErrorCallback)) { hdma->ErrorCode = HAL_DMA_ERROR_PARAM; 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; /* Enable the Double buffer mode */ hdma->Instance->CR |= (uint32_t)DMA_SxCR_DBM; /* Configure DMA Stream destination address */ hdma->Instance->M1AR = SecondMemAddress; /* Configure the source, destination address and the data length */ DMA_MultiBufferSetConfig(hdma, SrcAddress, DstAddress, DataLength); /* Clear all flags */ __HAL_DMA_CLEAR_FLAG (hdma, __HAL_DMA_GET_TC_FLAG_INDEX(hdma)); __HAL_DMA_CLEAR_FLAG (hdma, __HAL_DMA_GET_HT_FLAG_INDEX(hdma)); __HAL_DMA_CLEAR_FLAG (hdma, __HAL_DMA_GET_TE_FLAG_INDEX(hdma)); __HAL_DMA_CLEAR_FLAG (hdma, __HAL_DMA_GET_DME_FLAG_INDEX(hdma)); __HAL_DMA_CLEAR_FLAG (hdma, __HAL_DMA_GET_FE_FLAG_INDEX(hdma)); /* Enable Common interrupts*/ hdma->Instance->CR |= DMA_IT_TC | DMA_IT_TE | DMA_IT_DME; hdma->Instance->FCR |= DMA_IT_FE; if((hdma->XferHalfCpltCallback != NULL) || (hdma->XferM1HalfCpltCallback != NULL)) { hdma->Instance->CR |= DMA_IT_HT; } /* Enable the peripheral */ __HAL_DMA_ENABLE(hdma); } else { /* Process unlocked */ __HAL_UNLOCK(hdma); /* Return error status */ status = HAL_BUSY; } return status; } /** * @brief Change the memory0 or memory1 address on the fly. * @param hdma pointer to a DMA_HandleTypeDef structure that contains * the configuration information for the specified DMA Stream. * @param Address The new address * @param memory the memory to be changed, This parameter can be one of * the following values: * MEMORY0 / * MEMORY1 * @note The MEMORY0 address can be changed only when the current transfer use * MEMORY1 and the MEMORY1 address can be changed only when the current * transfer use MEMORY0. * @retval HAL status */ HAL_StatusTypeDef HAL_DMAEx_ChangeMemory(DMA_HandleTypeDef *hdma, uint32_t Address, HAL_DMA_MemoryTypeDef memory) { if(memory == MEMORY0) { /* change the memory0 address */ hdma->Instance->M0AR = Address; } else { /* change the memory1 address */ hdma->Instance->M1AR = Address; } return HAL_OK; } /** * @} */ /** * @} */ /** @addtogroup DMAEx_Private_Functions * @{ */ /** * @brief Set 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 HAL status */ static void DMA_MultiBufferSetConfig(DMA_HandleTypeDef *hdma, uint32_t SrcAddress, uint32_t DstAddress, uint32_t DataLength) { /* Configure DMA Stream data length */ hdma->Instance->NDTR = DataLength; /* Peripheral to Memory */ if((hdma->Init.Direction) == DMA_MEMORY_TO_PERIPH) { /* Configure DMA Stream destination address */ hdma->Instance->PAR = DstAddress; /* Configure DMA Stream source address */ hdma->Instance->M0AR = SrcAddress; } /* Memory to Peripheral */ else { /* Configure DMA Stream source address */ hdma->Instance->PAR = SrcAddress; /* Configure DMA Stream destination address */ hdma->Instance->M0AR = DstAddress; } } /** * @} */ #endif /* HAL_DMA_MODULE_ENABLED */ /** * @} */ /** * @} */ /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/