diff options
Diffstat (limited to 'bsps/arm/stm32h7/hal/stm32h7xx_hal_sd_ex.c')
| -rw-r--r-- | bsps/arm/stm32h7/hal/stm32h7xx_hal_sd_ex.c | 305 |
1 files changed, 305 insertions, 0 deletions
diff --git a/bsps/arm/stm32h7/hal/stm32h7xx_hal_sd_ex.c b/bsps/arm/stm32h7/hal/stm32h7xx_hal_sd_ex.c new file mode 100644 index 0000000000..674619d98b --- /dev/null +++ b/bsps/arm/stm32h7/hal/stm32h7xx_hal_sd_ex.c @@ -0,0 +1,305 @@ +/**
+ ******************************************************************************
+ * @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;
+ }
+
+ /* 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;
+ }
+
+ /* 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****/
|