| /** |
| ****************************************************************************** |
| * @file stm32l4xx_hal_mmc_ex.c |
| * @author MCD Application Team |
| * @brief MMC card Extended HAL module driver. |
| * This file provides firmware functions to manage the following |
| * functionalities of the Secure Digital (MMC) 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 MMC Extension HAL driver can be used as follows: |
| (+) Configure Buffer0 and Buffer1 start address and Buffer size using HAL_MMCEx_ConfigDMAMultiBuffer() function. |
| |
| (+) Start Read and Write for multibuffer mode using HAL_MMCEx_ReadBlocksDMAMultiBuffer() and HAL_MMCEx_WriteBlocksDMAMultiBuffer() functions. |
| |
| @endverbatim |
| ****************************************************************************** |
| */ |
| |
| /* Includes ------------------------------------------------------------------*/ |
| #include "stm32l4xx_hal.h" |
| |
| #if defined(STM32L4P5xx) || defined(STM32L4Q5xx) || defined(STM32L4R5xx) || defined(STM32L4R7xx) || defined(STM32L4R9xx) || defined(STM32L4S5xx) || defined(STM32L4S7xx) || defined(STM32L4S9xx) |
| |
| /** @addtogroup STM32L4xx_HAL_Driver |
| * @{ |
| */ |
| |
| /** @defgroup MMCEx MMCEx |
| * @brief MMC Extended HAL module driver |
| * @{ |
| */ |
| |
| #ifdef HAL_MMC_MODULE_ENABLED |
| |
| /* Private typedef -----------------------------------------------------------*/ |
| /* Private define ------------------------------------------------------------*/ |
| /* Private macro -------------------------------------------------------------*/ |
| /* Private variables ---------------------------------------------------------*/ |
| /* Private function prototypes -----------------------------------------------*/ |
| /* Private functions ---------------------------------------------------------*/ |
| /* Exported functions --------------------------------------------------------*/ |
| /** @defgroup MMCEx_Exported_Types MMCEx Exported Types |
| * @{ |
| */ |
| |
| /** @defgroup MMCEx_Exported_Types_Group1 MMC Internal DMA Buffer structure |
| * @brief Multibuffer functions |
| * |
| @verbatim |
| ============================================================================== |
| ##### Multibuffer functions ##### |
| ============================================================================== |
| [..] |
| This section provides functions allowing to configure the multibuffer mode and start read and write |
| multibuffer mode for MMC HAL driver. |
| |
| @endverbatim |
| * @{ |
| */ |
| |
| /** |
| * @brief Configure DMA Dual Buffer mode. The Data transfer is managed by an Internal DMA. |
| * @param hmmc MMC handle |
| * @param pDataBuffer0 Pointer to the buffer0 that will contain/receive the transferred data |
| * @param pDataBuffer1 Pointer to the buffer1 that will contain/receive the transferred data |
| * @param BufferSize Size of Buffer0 in Blocks. Buffer0 and Buffer1 must have the same size. |
| * @retval HAL status |
| */ |
| HAL_StatusTypeDef HAL_MMCEx_ConfigDMAMultiBuffer(MMC_HandleTypeDef *hmmc, uint32_t * pDataBuffer0, uint32_t * pDataBuffer1, uint32_t BufferSize) |
| { |
| if(hmmc->State == HAL_MMC_STATE_READY) |
| { |
| hmmc->Instance->IDMABASE0= (uint32_t) pDataBuffer0 ; |
| hmmc->Instance->IDMABASE1= (uint32_t) pDataBuffer1 ; |
| hmmc->Instance->IDMABSIZE= (uint32_t) (MMC_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_MMCEx_ConfigDMAMultiBuffer before call this function. |
| * @param hmmc MMC 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_MMCEx_ReadBlocksDMAMultiBuffer(MMC_HandleTypeDef *hmmc, uint32_t BlockAdd, uint32_t NumberOfBlocks) |
| { |
| SDMMC_DataInitTypeDef config; |
| uint32_t DmaBase0_reg, DmaBase1_reg; |
| uint32_t errorstate; |
| uint32_t add = BlockAdd; |
| |
| if(hmmc->State == HAL_MMC_STATE_READY) |
| { |
| if((BlockAdd + NumberOfBlocks) > (hmmc->MmcCard.LogBlockNbr)) |
| { |
| hmmc->ErrorCode |= HAL_MMC_ERROR_ADDR_OUT_OF_RANGE; |
| return HAL_ERROR; |
| } |
| |
| DmaBase0_reg = hmmc->Instance->IDMABASE0; |
| DmaBase1_reg = hmmc->Instance->IDMABASE1; |
| if ((hmmc->Instance->IDMABSIZE == 0U) || (DmaBase0_reg == 0U) || (DmaBase1_reg == 0U)) |
| { |
| hmmc->ErrorCode = HAL_MMC_ERROR_ADDR_OUT_OF_RANGE; |
| return HAL_ERROR; |
| } |
| |
| /* Initialize data control register */ |
| hmmc->Instance->DCTRL = 0; |
| |
| hmmc->ErrorCode = HAL_MMC_ERROR_NONE; |
| hmmc->State = HAL_MMC_STATE_BUSY; |
| |
| if ((hmmc->MmcCard.CardType) != MMC_HIGH_CAPACITY_CARD) |
| { |
| add *= 512U; |
| } |
| |
| /* Configure the MMC DPSM (Data Path State Machine) */ |
| config.DataTimeOut = SDMMC_DATATIMEOUT; |
| config.DataLength = MMC_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(hmmc->Instance, &config); |
| |
| hmmc->Instance->DCTRL |= SDMMC_DCTRL_FIFORST; |
| |
| __SDMMC_CMDTRANS_ENABLE( hmmc->Instance); |
| |
| hmmc->Instance->IDMACTRL = SDMMC_ENABLE_IDMA_DOUBLE_BUFF0; |
| |
| /* Read Blocks in DMA mode */ |
| hmmc->Context = (MMC_CONTEXT_READ_MULTIPLE_BLOCK | MMC_CONTEXT_DMA); |
| |
| /* Read Multi Block command */ |
| errorstate = SDMMC_CmdReadMultiBlock(hmmc->Instance, add); |
| if(errorstate != HAL_MMC_ERROR_NONE) |
| { |
| hmmc->State = HAL_MMC_STATE_READY; |
| hmmc->ErrorCode |= errorstate; |
| return HAL_ERROR; |
| } |
| |
| __HAL_MMC_ENABLE_IT(hmmc, (SDMMC_IT_DCRCFAIL | SDMMC_IT_DTIMEOUT | SDMMC_IT_RXOVERR | SDMMC_IT_DATAEND | SDMMC_FLAG_IDMATE | SDMMC_FLAG_IDMABTC)); |
| |
| return HAL_OK; |
| } |
| else |
| { |
| return HAL_BUSY; |
| } |
| |
| } |
| |
| /** |
| * @brief Write block(s) to a specified address in a card. The transferred Data are stored in Buffer0 and Buffer1. |
| * Buffer0, Buffer1 and BufferSize need to be configured by function HAL_MMCEx_ConfigDMAMultiBuffer before call this function. |
| * @param hmmc MMC 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_MMCEx_WriteBlocksDMAMultiBuffer(MMC_HandleTypeDef *hmmc, uint32_t BlockAdd, uint32_t NumberOfBlocks) |
| { |
| SDMMC_DataInitTypeDef config; |
| uint32_t errorstate; |
| uint32_t DmaBase0_reg, DmaBase1_reg; |
| uint32_t add = BlockAdd; |
| |
| if(hmmc->State == HAL_MMC_STATE_READY) |
| { |
| if((BlockAdd + NumberOfBlocks) > (hmmc->MmcCard.LogBlockNbr)) |
| { |
| hmmc->ErrorCode |= HAL_MMC_ERROR_ADDR_OUT_OF_RANGE; |
| return HAL_ERROR; |
| } |
| |
| DmaBase0_reg = hmmc->Instance->IDMABASE0; |
| DmaBase1_reg = hmmc->Instance->IDMABASE1; |
| if ((hmmc->Instance->IDMABSIZE == 0U) || (DmaBase0_reg == 0U) || (DmaBase1_reg == 0U)) |
| { |
| hmmc->ErrorCode = HAL_MMC_ERROR_ADDR_OUT_OF_RANGE; |
| return HAL_ERROR; |
| } |
| |
| /* Initialize data control register */ |
| hmmc->Instance->DCTRL = 0; |
| |
| hmmc->ErrorCode = HAL_MMC_ERROR_NONE; |
| |
| hmmc->State = HAL_MMC_STATE_BUSY; |
| |
| if ((hmmc->MmcCard.CardType) != MMC_HIGH_CAPACITY_CARD) |
| { |
| add *= 512U; |
| } |
| |
| /* Configure the MMC DPSM (Data Path State Machine) */ |
| config.DataTimeOut = SDMMC_DATATIMEOUT; |
| config.DataLength = MMC_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(hmmc->Instance, &config); |
| |
| __SDMMC_CMDTRANS_ENABLE( hmmc->Instance); |
| |
| hmmc->Instance->IDMACTRL = SDMMC_ENABLE_IDMA_DOUBLE_BUFF0; |
| |
| /* Write Blocks in DMA mode */ |
| hmmc->Context = (MMC_CONTEXT_WRITE_MULTIPLE_BLOCK | MMC_CONTEXT_DMA); |
| |
| /* Write Multi Block command */ |
| errorstate = SDMMC_CmdWriteMultiBlock(hmmc->Instance, add); |
| if(errorstate != HAL_MMC_ERROR_NONE) |
| { |
| hmmc->State = HAL_MMC_STATE_READY; |
| hmmc->ErrorCode |= errorstate; |
| return HAL_ERROR; |
| } |
| |
| __HAL_MMC_ENABLE_IT(hmmc, (SDMMC_IT_DCRCFAIL | SDMMC_IT_DTIMEOUT | SDMMC_IT_TXUNDERR | SDMMC_IT_DATAEND | SDMMC_FLAG_IDMATE | SDMMC_FLAG_IDMABTC)); |
| |
| return HAL_OK; |
| } |
| else |
| { |
| return HAL_BUSY; |
| } |
| } |
| |
| |
| /** |
| * @brief Change the DMA Buffer0 or Buffer1 address on the fly. |
| * @param hmmc pointer to a MMC_HandleTypeDef structure. |
| * @param Buffer the buffer to be changed, This parameter can be one of |
| * the following values: MMC_DMA_BUFFER0 or MMC_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_MMCEx_ChangeDMABuffer(MMC_HandleTypeDef *hmmc, HAL_MMCEx_DMABuffer_MemoryTypeDef Buffer, uint32_t *pDataBuffer) |
| { |
| if(Buffer == MMC_DMA_BUFFER0) |
| { |
| /* change the buffer0 address */ |
| hmmc->Instance->IDMABASE0 = (uint32_t)pDataBuffer; |
| } |
| else |
| { |
| /* change the memory1 address */ |
| hmmc->Instance->IDMABASE1 = (uint32_t)pDataBuffer; |
| } |
| |
| return HAL_OK; |
| } |
| |
| /** |
| * @brief Read DMA Buffer 0 Transfer completed callbacks |
| * @param hmmc MMC handle |
| * @retval None |
| */ |
| __weak void HAL_MMCEx_Read_DMADoubleBuffer0CpltCallback(MMC_HandleTypeDef *hmmc) |
| { |
| /* Prevent unused argument(s) compilation warning */ |
| UNUSED(hmmc); |
| |
| /* NOTE : This function should not be modified, when the callback is needed, |
| the HAL_MMCEx_Read_DMADoubleBuffer0CpltCallback can be implemented in the user file |
| */ |
| } |
| |
| /** |
| * @brief Read DMA Buffer 1 Transfer completed callbacks |
| * @param hmmc MMC handle |
| * @retval None |
| */ |
| __weak void HAL_MMCEx_Read_DMADoubleBuffer1CpltCallback(MMC_HandleTypeDef *hmmc) |
| { |
| /* Prevent unused argument(s) compilation warning */ |
| UNUSED(hmmc); |
| |
| /* NOTE : This function should not be modified, when the callback is needed, |
| the HAL_MMCEx_Read_DMADoubleBuffer1CpltCallback can be implemented in the user file |
| */ |
| } |
| |
| /** |
| * @brief Write DMA Buffer 0 Transfer completed callbacks |
| * @param hmmc MMC handle |
| * @retval None |
| */ |
| __weak void HAL_MMCEx_Write_DMADoubleBuffer0CpltCallback(MMC_HandleTypeDef *hmmc) |
| { |
| /* Prevent unused argument(s) compilation warning */ |
| UNUSED(hmmc); |
| |
| /* NOTE : This function should not be modified, when the callback is needed, |
| the HAL_MMCEx_Write_DMADoubleBuffer0CpltCallback can be implemented in the user file |
| */ |
| } |
| |
| /** |
| * @brief Write DMA Buffer 1 Transfer completed callbacks |
| * @param hmmc MMC handle |
| * @retval None |
| */ |
| __weak void HAL_MMCEx_Write_DMADoubleBuffer1CpltCallback(MMC_HandleTypeDef *hmmc) |
| { |
| /* Prevent unused argument(s) compilation warning */ |
| UNUSED(hmmc); |
| |
| /* NOTE : This function should not be modified, when the callback is needed, |
| the HAL_MMCEx_Write_DMADoubleBuffer0CpltCallback can be implemented in the user file |
| */ |
| } |
| |
| /** |
| * @} |
| */ |
| |
| /** |
| * @} |
| */ |
| |
| #endif /* HAL_MMC_MODULE_ENABLED */ |
| |
| /** |
| * @} |
| */ |
| |
| /** |
| * @} |
| */ |
| |
| #endif /* STM32L4P5xx || STM32L4Q5xx || STM32L4R5xx || STM32L4R7xx || STM32L4R9xx || STM32L4S5xx || STM32L4S7xx || STM32L4S9xx */ |