| /** |
| ****************************************************************************** |
| * @file stm32h7xx_hal_sd_ex.c |
| * @author MCD Application Team |
| * @brief SD card Extended HAL module driver. |
| * This file provides firmware functions to manage the following |
| * functionalities of the Secure Digital (SD) peripheral: |
| * + Extended features functions |
| * |
| @verbatim |
| ============================================================================== |
| ##### How to use this driver ##### |
| ============================================================================== |
| [..] |
| The SD Extension HAL driver can be used as follows: |
| (+) Configure Buffer0 and Buffer1 start address and Buffer size using HAL_SDEx_ConfigDMAMultiBuffer() function. |
| (+) Start Read and Write for multibuffer mode using HAL_SDEx_ReadBlocksDMAMultiBuffer() and HAL_SDEx_WriteBlocksDMAMultiBuffer() functions. |
| |
| @endverbatim |
| ****************************************************************************** |
| * @attention |
| * |
| * <h2><center>© Copyright (c) 2017 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 "stm32h7xx_hal.h" |
| |
| /** @addtogroup STM32H7xx_HAL_Driver |
| * @{ |
| */ |
| |
| /** @defgroup SDEx SDEx |
| * @brief SD Extended HAL module driver |
| * @{ |
| */ |
| |
| #ifdef HAL_SD_MODULE_ENABLED |
| |
| /* Private typedef -----------------------------------------------------------*/ |
| /* Private define ------------------------------------------------------------*/ |
| /* Private macro -------------------------------------------------------------*/ |
| /* Private variables ---------------------------------------------------------*/ |
| /* Private function prototypes -----------------------------------------------*/ |
| /* Private functions ---------------------------------------------------------*/ |
| /* Exported functions --------------------------------------------------------*/ |
| /** @addtogroup SDEx_Exported_Functions |
| * @{ |
| */ |
| |
| /** @addtogroup SDEx_Exported_Functions_Group1 |
| * @brief Multibuffer functions |
| * |
| @verbatim |
| ============================================================================== |
| ##### Multibuffer functions ##### |
| ============================================================================== |
| [..] |
| This section provides functions allowing to configure the multibuffer mode and start read and write |
| multibuffer mode for SD HAL driver. |
| |
| @endverbatim |
| * @{ |
| */ |
| |
| /** |
| * @brief Configure DMA Dual Buffer mode. The Data transfer is managed by an Internal DMA. |
| * @param hsd: SD handle |
| * @param pDataBuffer0: Pointer to the buffer0 that will contain/receive the transfered data |
| * @param pDataBuffer1: Pointer to the buffer1 that will contain/receive the transfered data |
| * @param BufferSize: Size of Buffer0 in Blocks. Buffer0 and Buffer1 must have the same size. |
| * @retval HAL status |
| */ |
| HAL_StatusTypeDef HAL_SDEx_ConfigDMAMultiBuffer(SD_HandleTypeDef *hsd, uint32_t *pDataBuffer0, uint32_t *pDataBuffer1, uint32_t BufferSize) |
| { |
| if(hsd->State == HAL_SD_STATE_READY) |
| { |
| hsd->Instance->IDMABASE0= (uint32_t) pDataBuffer0; |
| hsd->Instance->IDMABASE1= (uint32_t) pDataBuffer1; |
| hsd->Instance->IDMABSIZE= (uint32_t) (BLOCKSIZE * BufferSize); |
| |
| return HAL_OK; |
| } |
| else |
| { |
| return HAL_BUSY; |
| } |
| } |
| |
| /** |
| * @brief Reads block(s) from a specified address in a card. The received Data will be stored in Buffer0 and Buffer1. |
| * Buffer0, Buffer1 and BufferSize need to be configured by function HAL_SDEx_ConfigDMAMultiBuffer before call this function. |
| * @param hsd: SD handle |
| * @param BlockAdd: Block Address from where data is to be read |
| * @param NumberOfBlocks: Total number of blocks to read |
| * @retval HAL status |
| */ |
| HAL_StatusTypeDef HAL_SDEx_ReadBlocksDMAMultiBuffer(SD_HandleTypeDef *hsd, uint32_t BlockAdd, uint32_t NumberOfBlocks) |
| { |
| SDMMC_DataInitTypeDef config; |
| uint32_t errorstate; |
| uint32_t DmaBase0_reg, DmaBase1_reg; |
| uint32_t add = BlockAdd; |
| |
| if(hsd->State == HAL_SD_STATE_READY) |
| { |
| if((add + NumberOfBlocks) > (hsd->SdCard.LogBlockNbr)) |
| { |
| hsd->ErrorCode |= HAL_SD_ERROR_ADDR_OUT_OF_RANGE; |
| return HAL_ERROR; |
| } |
| |
| DmaBase0_reg = hsd->Instance->IDMABASE0; |
| DmaBase1_reg = hsd->Instance->IDMABASE1; |
| if ((hsd->Instance->IDMABSIZE == 0U) || (DmaBase0_reg == 0U) || (DmaBase1_reg == 0U)) |
| { |
| hsd->ErrorCode = HAL_SD_ERROR_ADDR_OUT_OF_RANGE; |
| return HAL_ERROR; |
| } |
| |
| /* Initialize data control register */ |
| hsd->Instance->DCTRL = 0; |
| /* Clear old Flags*/ |
| __HAL_SD_CLEAR_FLAG(hsd, SDMMC_STATIC_DATA_FLAGS); |
| |
| hsd->ErrorCode = HAL_SD_ERROR_NONE; |
| hsd->State = HAL_SD_STATE_BUSY; |
| |
| if(hsd->SdCard.CardType != CARD_SDHC_SDXC) |
| { |
| add *= 512U; |
| } |
| |
| /* Set Block Size for Card */ |
| errorstate = SDMMC_CmdBlockLength(hsd->Instance, BLOCKSIZE); |
| if(errorstate != HAL_SD_ERROR_NONE) |
| { |
| /* Clear all the static flags */ |
| __HAL_SD_CLEAR_FLAG(hsd, SDMMC_STATIC_FLAGS); |
| hsd->ErrorCode |= errorstate; |
| hsd->State = HAL_SD_STATE_READY; |
| return HAL_ERROR; |
| } |
| |
| /* Configure the SD DPSM (Data Path State Machine) */ |
| config.DataTimeOut = SDMMC_DATATIMEOUT; |
| config.DataLength = BLOCKSIZE * NumberOfBlocks; |
| config.DataBlockSize = SDMMC_DATABLOCK_SIZE_512B; |
| config.TransferDir = SDMMC_TRANSFER_DIR_TO_SDMMC; |
| config.TransferMode = SDMMC_TRANSFER_MODE_BLOCK; |
| config.DPSM = SDMMC_DPSM_DISABLE; |
| (void)SDMMC_ConfigData(hsd->Instance, &config); |
| |
| hsd->Instance->DCTRL |= SDMMC_DCTRL_FIFORST; |
| |
| __SDMMC_CMDTRANS_ENABLE( hsd->Instance); |
| |
| hsd->Instance->IDMACTRL = SDMMC_ENABLE_IDMA_DOUBLE_BUFF0; |
| |
| /* Read Blocks in DMA mode */ |
| hsd->Context = (SD_CONTEXT_READ_MULTIPLE_BLOCK | SD_CONTEXT_DMA); |
| |
| /* Read Multi Block command */ |
| errorstate = SDMMC_CmdReadMultiBlock(hsd->Instance, add); |
| if(errorstate != HAL_SD_ERROR_NONE) |
| { |
| hsd->State = HAL_SD_STATE_READY; |
| hsd->ErrorCode |= errorstate; |
| return HAL_ERROR; |
| } |
| |
| __HAL_SD_ENABLE_IT(hsd, (SDMMC_IT_DCRCFAIL | SDMMC_IT_DTIMEOUT | SDMMC_IT_RXOVERR | SDMMC_IT_DATAEND | SDMMC_IT_IDMABTC)); |
| |
| return HAL_OK; |
| } |
| else |
| { |
| return HAL_BUSY; |
| } |
| |
| } |
| |
| /** |
| * @brief Write block(s) to a specified address in a card. The transfered Data are stored in Buffer0 and Buffer1. |
| * Buffer0, Buffer1 and BufferSize need to be configured by function HAL_SDEx_ConfigDMAMultiBuffer before call this function. |
| * @param hsd: SD handle |
| * @param BlockAdd: Block Address from where data is to be read |
| * @param NumberOfBlocks: Total number of blocks to read |
| * @retval HAL status |
| */ |
| HAL_StatusTypeDef HAL_SDEx_WriteBlocksDMAMultiBuffer(SD_HandleTypeDef *hsd, uint32_t BlockAdd, uint32_t NumberOfBlocks) |
| { |
| SDMMC_DataInitTypeDef config; |
| uint32_t errorstate; |
| uint32_t DmaBase0_reg, DmaBase1_reg; |
| uint32_t add = BlockAdd; |
| |
| if(hsd->State == HAL_SD_STATE_READY) |
| { |
| if((add + NumberOfBlocks) > (hsd->SdCard.LogBlockNbr)) |
| { |
| hsd->ErrorCode |= HAL_SD_ERROR_ADDR_OUT_OF_RANGE; |
| return HAL_ERROR; |
| } |
| |
| DmaBase0_reg = hsd->Instance->IDMABASE0; |
| DmaBase1_reg = hsd->Instance->IDMABASE1; |
| if ((hsd->Instance->IDMABSIZE == 0U) || (DmaBase0_reg == 0U) || (DmaBase1_reg == 0U)) |
| { |
| hsd->ErrorCode = HAL_SD_ERROR_ADDR_OUT_OF_RANGE; |
| return HAL_ERROR; |
| } |
| |
| /* Initialize data control register */ |
| hsd->Instance->DCTRL = 0; |
| |
| hsd->ErrorCode = HAL_SD_ERROR_NONE; |
| |
| hsd->State = HAL_SD_STATE_BUSY; |
| |
| if(hsd->SdCard.CardType != CARD_SDHC_SDXC) |
| { |
| add *= 512U; |
| } |
| |
| /* Set Block Size for Card */ |
| errorstate = SDMMC_CmdBlockLength(hsd->Instance, BLOCKSIZE); |
| if(errorstate != HAL_SD_ERROR_NONE) |
| { |
| /* Clear all the static flags */ |
| __HAL_SD_CLEAR_FLAG(hsd, SDMMC_STATIC_FLAGS); |
| hsd->ErrorCode |= errorstate; |
| hsd->State = HAL_SD_STATE_READY; |
| return HAL_ERROR; |
| } |
| |
| /* Configure the SD DPSM (Data Path State Machine) */ |
| config.DataTimeOut = SDMMC_DATATIMEOUT; |
| config.DataLength = BLOCKSIZE * NumberOfBlocks; |
| config.DataBlockSize = SDMMC_DATABLOCK_SIZE_512B; |
| config.TransferDir = SDMMC_TRANSFER_DIR_TO_CARD; |
| config.TransferMode = SDMMC_TRANSFER_MODE_BLOCK; |
| config.DPSM = SDMMC_DPSM_DISABLE; |
| (void)SDMMC_ConfigData(hsd->Instance, &config); |
| |
| __SDMMC_CMDTRANS_ENABLE( hsd->Instance); |
| |
| hsd->Instance->IDMACTRL = SDMMC_ENABLE_IDMA_DOUBLE_BUFF0; |
| |
| /* Write Blocks in DMA mode */ |
| hsd->Context = (SD_CONTEXT_WRITE_MULTIPLE_BLOCK | SD_CONTEXT_DMA); |
| |
| /* Write Multi Block command */ |
| errorstate = SDMMC_CmdWriteMultiBlock(hsd->Instance, add); |
| if(errorstate != HAL_SD_ERROR_NONE) |
| { |
| hsd->State = HAL_SD_STATE_READY; |
| hsd->ErrorCode |= errorstate; |
| return HAL_ERROR; |
| } |
| |
| __HAL_SD_ENABLE_IT(hsd, (SDMMC_IT_DCRCFAIL | SDMMC_IT_DTIMEOUT | SDMMC_IT_TXUNDERR | SDMMC_IT_DATAEND | SDMMC_IT_IDMABTC)); |
| |
| return HAL_OK; |
| } |
| else |
| { |
| return HAL_BUSY; |
| } |
| } |
| |
| |
| /** |
| * @brief Change the DMA Buffer0 or Buffer1 address on the fly. |
| * @param hsd: pointer to a SD_HandleTypeDef structure. |
| * @param Buffer: the buffer to be changed, This parameter can be one of |
| * the following values: SD_DMA_BUFFER0 or SD_DMA_BUFFER1 |
| * @param pDataBuffer: The new address |
| * @note The BUFFER0 address can be changed only when the current transfer use |
| * BUFFER1 and the BUFFER1 address can be changed only when the current |
| * transfer use BUFFER0. |
| * @retval HAL status |
| */ |
| HAL_StatusTypeDef HAL_SDEx_ChangeDMABuffer(SD_HandleTypeDef *hsd, HAL_SDEx_DMABuffer_MemoryTypeDef Buffer, uint32_t *pDataBuffer) |
| { |
| if(Buffer == SD_DMA_BUFFER0) |
| { |
| /* change the buffer0 address */ |
| hsd->Instance->IDMABASE0 = (uint32_t)pDataBuffer; |
| } |
| else |
| { |
| /* change the memory1 address */ |
| hsd->Instance->IDMABASE1 = (uint32_t)pDataBuffer; |
| } |
| |
| return HAL_OK; |
| } |
| |
| |
| /** |
| * @} |
| */ |
| |
| /** |
| * @} |
| */ |
| |
| #endif /* HAL_SD_MODULE_ENABLED */ |
| |
| /** |
| * @} |
| */ |
| |
| /** |
| * @} |
| */ |
| |
| /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |