From 86608c6770cf08c138a2bdab5855072f64be09ef Mon Sep 17 00:00:00 2001 From: joshua Date: Sat, 30 Dec 2023 23:54:31 -0500 Subject: initial commit --- .../Src/stm32h7xx_hal_mmc_ex.c | 353 +++++++++++++++++++++ 1 file changed, 353 insertions(+) create mode 100644 Drivers/STM32H7xx_HAL_Driver/Src/stm32h7xx_hal_mmc_ex.c (limited to 'Drivers/STM32H7xx_HAL_Driver/Src/stm32h7xx_hal_mmc_ex.c') diff --git a/Drivers/STM32H7xx_HAL_Driver/Src/stm32h7xx_hal_mmc_ex.c b/Drivers/STM32H7xx_HAL_Driver/Src/stm32h7xx_hal_mmc_ex.c new file mode 100644 index 0000000..c6628b0 --- /dev/null +++ b/Drivers/STM32H7xx_HAL_Driver/Src/stm32h7xx_hal_mmc_ex.c @@ -0,0 +1,353 @@ +/** + ****************************************************************************** + * @file stm32h7xx_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 "stm32h7xx_hal.h" + +/** @addtogroup STM32H7xx_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 --------------------------------------------------------*/ +/** @addtogroup MMCEx_Exported_Functions + * @{ + */ + + + +/** @addtogroup MMCEx_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 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; + uint32_t 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; + } + + /* Check the case of 4kB blocks (field DATA SECTOR SIZE of extended CSD register) */ + if (((hmmc->Ext_CSD[(MMC_EXT_CSD_DATA_SEC_SIZE_INDEX / 4)] >> MMC_EXT_CSD_DATA_SEC_SIZE_POS) & 0x000000FFU) != 0x0U) + { + if ((NumberOfBlocks % 8U) != 0U) + { + /* The number of blocks should be a multiple of 8 sectors of 512 bytes = 4 KBytes */ + hmmc->ErrorCode |= HAL_MMC_ERROR_BLOCK_LEN_ERR; + return HAL_ERROR; + } + + if ((BlockAdd % 8U) != 0U) + { + /* The address should be aligned to 8 (corresponding to 4 KBytes blocks) */ + hmmc->ErrorCode |= HAL_MMC_ERROR_ADDR_MISALIGNED; + 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; + uint32_t 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; + } + + /* Check the case of 4kB blocks (field DATA SECTOR SIZE of extended CSD register) */ + if (((hmmc->Ext_CSD[(MMC_EXT_CSD_DATA_SEC_SIZE_INDEX / 4)] >> MMC_EXT_CSD_DATA_SEC_SIZE_POS) & 0x000000FFU) != 0x0U) + { + if ((NumberOfBlocks % 8U) != 0U) + { + /* The number of blocks should be a multiple of 8 sectors of 512 bytes = 4 KBytes */ + hmmc->ErrorCode |= HAL_MMC_ERROR_BLOCK_LEN_ERR; + return HAL_ERROR; + } + + if ((BlockAdd % 8U) != 0U) + { + /* The address should be aligned to 8 (corresponding to 4 KBytes blocks) */ + hmmc->ErrorCode |= HAL_MMC_ERROR_ADDR_MISALIGNED; + 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; +} + + +/** + * @} + */ + +/** + * @} + */ + +#endif /* HAL_MMC_MODULE_ENABLED */ + +/** + * @} + */ + +/** + * @} + */ -- cgit v1.2.3