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  1. /**
  2.   ******************************************************************************
  3.   * @file    stm32f1xx_hal_mmc.c
  4.   * @author  MCD Application Team
  5.   * @brief   MMC card HAL module driver.
  6.   *          This file provides firmware functions to manage the following
  7.   *          functionalities of the Secure Digital (MMC) peripheral:
  8.   *           + Initialization and de-initialization functions
  9.   *           + IO operation functions
  10.   *           + Peripheral Control functions
  11.   *           + MMC card Control functions
  12.   *        
  13.   @verbatim
  14.   ==============================================================================
  15.                         ##### How to use this driver #####
  16.   ==============================================================================
  17.   [..]
  18.     This driver implements a high level communication layer for read and write from/to
  19.     this memory. The needed STM32 hardware resources (SDMMC and GPIO) are performed by
  20.     the user in HAL_MMC_MspInit() function (MSP layer).                            
  21.     Basically, the MSP layer configuration should be the same as we provide in the
  22.     examples.
  23.     You can easily tailor this configuration according to hardware resources.
  24.  
  25.   [..]
  26.     This driver is a generic layered driver for SDMMC memories which uses the HAL
  27.     SDMMC driver functions to interface with MMC and eMMC cards devices.
  28.     It is used as follows:
  29.  
  30.     (#)Initialize the SDMMC low level resources by implement the HAL_MMC_MspInit() API:
  31.         (##) Enable the SDMMC interface clock using __HAL_RCC_SDMMC_CLK_ENABLE();
  32.         (##) SDMMC pins configuration for MMC card
  33.             (+++) Enable the clock for the SDMMC GPIOs using the functions __HAL_RCC_GPIOx_CLK_ENABLE();  
  34.             (+++) Configure these SDMMC pins as alternate function pull-up using HAL_GPIO_Init()
  35.                   and according to your pin assignment;
  36.         (##) DMA Configuration if you need to use DMA process (HAL_MMC_ReadBlocks_DMA()
  37.              and HAL_MMC_WriteBlocks_DMA() APIs).
  38.             (+++) Enable the DMAx interface clock using __HAL_RCC_DMAx_CLK_ENABLE();
  39.             (+++) Configure the DMA using the function HAL_DMA_Init() with predeclared and filled.
  40.         (##) NVIC configuration if you need to use interrupt process when using DMA transfer.
  41.             (+++) Configure the SDMMC and DMA interrupt priorities using functions
  42.                   HAL_NVIC_SetPriority(); DMA priority is superior to SDMMC's priority
  43.             (+++) Enable the NVIC DMA and SDMMC IRQs using function HAL_NVIC_EnableIRQ()
  44.             (+++) SDMMC interrupts are managed using the macros __HAL_MMC_ENABLE_IT()
  45.                   and __HAL_MMC_DISABLE_IT() inside the communication process.
  46.             (+++) SDMMC interrupts pending bits are managed using the macros __HAL_MMC_GET_IT()
  47.                   and __HAL_MMC_CLEAR_IT()
  48.         (##) NVIC configuration if you need to use interrupt process (HAL_MMC_ReadBlocks_IT()
  49.              and HAL_MMC_WriteBlocks_IT() APIs).
  50.             (+++) Configure the SDMMC interrupt priorities using function
  51.                   HAL_NVIC_SetPriority();
  52.             (+++) Enable the NVIC SDMMC IRQs using function HAL_NVIC_EnableIRQ()
  53.             (+++) SDMMC interrupts are managed using the macros __HAL_MMC_ENABLE_IT()
  54.                   and __HAL_MMC_DISABLE_IT() inside the communication process.
  55.             (+++) SDMMC interrupts pending bits are managed using the macros __HAL_MMC_GET_IT()
  56.                   and __HAL_MMC_CLEAR_IT()
  57.     (#) At this stage, you can perform MMC read/write/erase operations after MMC card initialization  
  58.  
  59.          
  60.   *** MMC Card Initialization and configuration ***
  61.   ================================================    
  62.   [..]
  63.     To initialize the MMC Card, use the HAL_MMC_Init() function. It Initializes
  64.     SDMMC IP (STM32 side) and the MMC Card, and put it into StandBy State (Ready for data transfer).
  65.     This function provide the following operations:
  66.  
  67.     (#) Initialize the SDMMC peripheral interface with defaullt configuration.
  68.         The initialization process is done at 400KHz. You can change or adapt
  69.         this frequency by adjusting the "ClockDiv" field.
  70.         The MMC Card frequency (SDMMC_CK) is computed as follows:
  71.  
  72.            SDMMC_CK = SDMMCCLK / (ClockDiv + 2)
  73.  
  74.         In initialization mode and according to the MMC Card standard,
  75.         make sure that the SDMMC_CK frequency doesn't exceed 400KHz.
  76.  
  77.         This phase of initialization is done through SDMMC_Init() and
  78.         SDMMC_PowerState_ON() SDMMC low level APIs.
  79.  
  80.     (#) Initialize the MMC card. The API used is HAL_MMC_InitCard().
  81.         This phase allows the card initialization and identification
  82.         and check the MMC Card type (Standard Capacity or High Capacity)
  83.         The initialization flow is compatible with MMC standard.
  84.  
  85.         This API (HAL_MMC_InitCard()) could be used also to reinitialize the card in case
  86.         of plug-off plug-in.
  87.  
  88.     (#) Configure the MMC Card Data transfer frequency. By Default, the card transfer
  89.         frequency is set to 24MHz. You can change or adapt this frequency by adjusting
  90.         the "ClockDiv" field.
  91.         In transfer mode and according to the MMC Card standard, make sure that the
  92.         SDMMC_CK frequency doesn't exceed 25MHz and 50MHz in High-speed mode switch.
  93.         To be able to use a frequency higher than 24MHz, you should use the SDMMC
  94.         peripheral in bypass mode. Refer to the corresponding reference manual
  95.         for more details.
  96.  
  97.     (#) Select the corresponding MMC Card according to the address read with the step 2.
  98.    
  99.     (#) Configure the MMC Card in wide bus mode: 4-bits data.
  100.  
  101.   *** MMC Card Read operation ***
  102.   ==============================
  103.   [..]
  104.     (+) You can read from MMC card in polling mode by using function HAL_MMC_ReadBlocks().
  105.         This function allows the read of 512 bytes blocks.
  106.         You can choose either one block read operation or multiple block read operation
  107.         by adjusting the "NumberOfBlocks" parameter.
  108.         After this, you have to ensure that the transfer is done correctly. The check is done
  109.         through HAL_MMC_GetCardState() function for MMC card state.
  110.  
  111.     (+) You can read from MMC card in DMA mode by using function HAL_MMC_ReadBlocks_DMA().
  112.         This function allows the read of 512 bytes blocks.
  113.         You can choose either one block read operation or multiple block read operation
  114.         by adjusting the "NumberOfBlocks" parameter.
  115.         After this, you have to ensure that the transfer is done correctly. The check is done
  116.         through HAL_MMC_GetCardState() function for MMC card state.
  117.         You could also check the DMA transfer process through the MMC Rx interrupt event.
  118.  
  119.     (+) You can read from MMC card in Interrupt mode by using function HAL_MMC_ReadBlocks_IT().
  120.         This function allows the read of 512 bytes blocks.
  121.         You can choose either one block read operation or multiple block read operation
  122.         by adjusting the "NumberOfBlocks" parameter.
  123.         After this, you have to ensure that the transfer is done correctly. The check is done
  124.         through HAL_MMC_GetCardState() function for MMC card state.
  125.         You could also check the IT transfer process through the MMC Rx interrupt event.
  126.  
  127.   *** MMC Card Write operation ***
  128.   ===============================
  129.   [..]
  130.     (+) You can write to MMC card in polling mode by using function HAL_MMC_WriteBlocks().
  131.         This function allows the read of 512 bytes blocks.
  132.         You can choose either one block read operation or multiple block read operation
  133.         by adjusting the "NumberOfBlocks" parameter.
  134.         After this, you have to ensure that the transfer is done correctly. The check is done
  135.         through HAL_MMC_GetCardState() function for MMC card state.
  136.  
  137.     (+) You can write to MMC card in DMA mode by using function HAL_MMC_WriteBlocks_DMA().
  138.         This function allows the read of 512 bytes blocks.
  139.         You can choose either one block read operation or multiple block read operation
  140.         by adjusting the "NumberOfBlocks" parameter.
  141.         After this, you have to ensure that the transfer is done correctly. The check is done
  142.         through HAL_MMC_GetCardState() function for MMC card state.
  143.         You could also check the DMA transfer process through the MMC Tx interrupt event.  
  144.  
  145.     (+) You can write to MMC card in Interrupt mode by using function HAL_MMC_WriteBlocks_IT().
  146.         This function allows the read of 512 bytes blocks.
  147.         You can choose either one block read operation or multiple block read operation
  148.         by adjusting the "NumberOfBlocks" parameter.
  149.         After this, you have to ensure that the transfer is done correctly. The check is done
  150.         through HAL_MMC_GetCardState() function for MMC card state.
  151.         You could also check the IT transfer process through the MMC Tx interrupt event.
  152.  
  153.   *** MMC card status ***
  154.   ======================
  155.   [..]
  156.     (+) The MMC Status contains status bits that are related to the MMC Memory
  157.         Card proprietary features. To get MMC card status use the HAL_MMC_GetCardStatus().
  158.  
  159.   *** MMC card information ***
  160.   ===========================
  161.   [..]
  162.     (+) To get MMC card information, you can use the function HAL_MMC_GetCardInfo().
  163.         It returns useful information about the MMC card such as block size, card type,
  164.         block number ...
  165.  
  166.   *** MMC card CSD register ***
  167.   ============================
  168.   [..]
  169.     (+) The HAL_MMC_GetCardCSD() API allows to get the parameters of the CSD register.
  170.         Some of the CSD parameters are useful for card initialization and identification.
  171.  
  172.   *** MMC card CID register ***
  173.   ============================
  174.   [..]
  175.     (+) The HAL_MMC_GetCardCID() API allows to get the parameters of the CID register.
  176.         Some of the CID parameters are useful for card initialization and identification.
  177.  
  178.   *** MMC HAL driver macros list ***
  179.   ==================================
  180.   [..]
  181.     Below the list of most used macros in MMC HAL driver.
  182.        
  183.     (+) __HAL_MMC_ENABLE : Enable the MMC device
  184.     (+) __HAL_MMC_DISABLE : Disable the MMC device
  185.     (+) __HAL_MMC_DMA_ENABLE: Enable the SDMMC DMA transfer
  186.     (+) __HAL_MMC_DMA_DISABLE: Disable the SDMMC DMA transfer
  187.     (+) __HAL_MMC_ENABLE_IT: Enable the MMC device interrupt
  188.     (+) __HAL_MMC_DISABLE_IT: Disable the MMC device interrupt
  189.     (+) __HAL_MMC_GET_FLAG:Check whether the specified MMC flag is set or not
  190.     (+) __HAL_MMC_CLEAR_FLAG: Clear the MMC's pending flags
  191.    
  192.    [..]
  193.     (@) You can refer to the MMC HAL driver header file for more useful macros
  194.      
  195.   @endverbatim
  196.   ******************************************************************************
  197.   * @attention
  198.   *
  199.   * <h2><center>&copy; COPYRIGHT(c) 2017 STMicroelectronics</center></h2>
  200.   *
  201.   * Redistribution and use in source and binary forms, with or without modification,
  202.   * are permitted provided that the following conditions are met:
  203.   *   1. Redistributions of source code must retain the above copyright notice,
  204.   *      this list of conditions and the following disclaimer.
  205.   *   2. Redistributions in binary form must reproduce the above copyright notice,
  206.   *      this list of conditions and the following disclaimer in the documentation
  207.   *      and/or other materials provided with the distribution.
  208.   *   3. Neither the name of STMicroelectronics nor the names of its contributors
  209.   *      may be used to endorse or promote products derived from this software
  210.   *      without specific prior written permission.
  211.   *
  212.   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  213.   * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  214.   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  215.   * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
  216.   * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  217.   * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  218.   * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
  219.   * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  220.   * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  221.   * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  222.   *
  223.   ******************************************************************************
  224.   */
  225.  
  226. /* Includes ------------------------------------------------------------------*/
  227. #include "stm32f1xx_hal.h"
  228.  
  229. /** @addtogroup STM32F1xx_HAL_Driver
  230.   * @{
  231.   */
  232.  
  233. /** @addtogroup MMC
  234.   * @{
  235.   */
  236.  
  237. #ifdef HAL_MMC_MODULE_ENABLED
  238.  
  239. #if defined(STM32F103xE) || defined(STM32F103xG)
  240.  
  241. /* Private typedef -----------------------------------------------------------*/
  242. /* Private define ------------------------------------------------------------*/
  243. /** @addtogroup MMC_Private_Defines
  244.   * @{
  245.   */
  246.    
  247. /**
  248.   * @}
  249.   */
  250.  
  251. /* Private macro -------------------------------------------------------------*/
  252. /* Private variables ---------------------------------------------------------*/
  253. /* Private function prototypes -----------------------------------------------*/
  254. /* Private functions ---------------------------------------------------------*/
  255. /** @defgroup MMC_Private_Functions MMC Private Functions
  256.   * @{
  257.   */
  258. static uint32_t MMC_InitCard(MMC_HandleTypeDef *hmmc);
  259. static uint32_t MMC_PowerON(MMC_HandleTypeDef *hmmc);                      
  260. static uint32_t MMC_SendStatus(MMC_HandleTypeDef *hmmc, uint32_t *pCardStatus);
  261. static HAL_StatusTypeDef MMC_PowerOFF(MMC_HandleTypeDef *hmmc);
  262. static HAL_StatusTypeDef MMC_Write_IT(MMC_HandleTypeDef *hmmc);
  263. static HAL_StatusTypeDef MMC_Read_IT(MMC_HandleTypeDef *hmmc);
  264. static void MMC_DMATransmitCplt(DMA_HandleTypeDef *hdma);
  265. static void MMC_DMAReceiveCplt(DMA_HandleTypeDef *hdma);
  266. static void MMC_DMAError(DMA_HandleTypeDef *hdma);
  267. static void MMC_DMATxAbort(DMA_HandleTypeDef *hdma);
  268. static void MMC_DMARxAbort(DMA_HandleTypeDef *hdma);
  269. /**
  270.   * @}
  271.   */
  272.  
  273. /* Exported functions --------------------------------------------------------*/
  274. /** @addtogroup MMC_Exported_Functions
  275.   * @{
  276.   */
  277.  
  278. /** @addtogroup MMC_Exported_Functions_Group1
  279.  *  @brief   Initialization and de-initialization functions
  280.  *
  281. @verbatim    
  282.   ==============================================================================
  283.           ##### Initialization and de-initialization functions #####
  284.   ==============================================================================
  285.   [..]  
  286.     This section provides functions allowing to initialize/de-initialize the MMC
  287.     card device to be ready for use.
  288.  
  289. @endverbatim
  290.   * @{
  291.   */
  292.  
  293. /**
  294.   * @brief  Initializes the MMC according to the specified parameters in the
  295.             MMC_HandleTypeDef and create the associated handle.
  296.   * @param  hmmc: Pointer to the MMC handle  
  297.   * @retval HAL status
  298.   */
  299. HAL_StatusTypeDef HAL_MMC_Init(MMC_HandleTypeDef *hmmc)
  300. {
  301.   /* Check the MMC handle allocation */
  302.   if(hmmc == NULL)
  303.   {
  304.     return HAL_ERROR;
  305.   }
  306.  
  307.   /* Check the parameters */
  308.   assert_param(IS_SDIO_ALL_INSTANCE(hmmc->Instance));
  309.   assert_param(IS_SDIO_CLOCK_EDGE(hmmc->Init.ClockEdge));
  310.   assert_param(IS_SDIO_CLOCK_BYPASS(hmmc->Init.ClockBypass));
  311.   assert_param(IS_SDIO_CLOCK_POWER_SAVE(hmmc->Init.ClockPowerSave));
  312.   assert_param(IS_SDIO_BUS_WIDE(hmmc->Init.BusWide));
  313.   assert_param(IS_SDIO_HARDWARE_FLOW_CONTROL(hmmc->Init.HardwareFlowControl));
  314.   assert_param(IS_SDIO_CLKDIV(hmmc->Init.ClockDiv));
  315.  
  316.   if(hmmc->State == HAL_MMC_STATE_RESET)
  317.   {
  318.     /* Allocate lock resource and initialize it */
  319.     hmmc->Lock = HAL_UNLOCKED;
  320.     /* Init the low level hardware : GPIO, CLOCK, CORTEX...etc */
  321.     HAL_MMC_MspInit(hmmc);
  322.   }
  323.  
  324.   hmmc->State = HAL_MMC_STATE_BUSY;
  325.  
  326.   /* Initialize the Card parameters */
  327.   HAL_MMC_InitCard(hmmc);
  328.  
  329.   /* Initialize the error code */
  330.   hmmc->ErrorCode = HAL_DMA_ERROR_NONE;
  331.  
  332.   /* Initialize the MMC operation */
  333.   hmmc->Context = MMC_CONTEXT_NONE;
  334.                                                                                      
  335.   /* Initialize the MMC state */
  336.   hmmc->State = HAL_MMC_STATE_READY;
  337.  
  338.   return HAL_OK;
  339. }
  340.  
  341. /**
  342.   * @brief  Initializes the MMC Card.
  343.   * @param  hmmc: Pointer to MMC handle
  344.   * @note   This function initializes the MMC card. It could be used when a card
  345.             re-initialization is needed.
  346.   * @retval HAL status
  347.   */
  348. HAL_StatusTypeDef HAL_MMC_InitCard(MMC_HandleTypeDef *hmmc)
  349. {
  350.   uint32_t errorstate = HAL_MMC_ERROR_NONE;
  351.   MMC_InitTypeDef Init;
  352.  
  353.   /* Default SDMMC peripheral configuration for MMC card initialization */
  354.   Init.ClockEdge           = SDIO_CLOCK_EDGE_RISING;
  355.   Init.ClockBypass         = SDIO_CLOCK_BYPASS_DISABLE;
  356.   Init.ClockPowerSave      = SDIO_CLOCK_POWER_SAVE_DISABLE;
  357.   Init.BusWide             = SDIO_BUS_WIDE_1B;
  358.   Init.HardwareFlowControl = SDIO_HARDWARE_FLOW_CONTROL_DISABLE;
  359.   Init.ClockDiv            = SDIO_INIT_CLK_DIV;
  360.  
  361.   /* Initialize SDMMC peripheral interface with default configuration */
  362.   SDIO_Init(hmmc->Instance, Init);
  363.  
  364.   /* Disable SDMMC Clock */
  365.   __HAL_MMC_DISABLE(hmmc);
  366.  
  367.   /* Set Power State to ON */
  368.   SDIO_PowerState_ON(hmmc->Instance);
  369.  
  370.   /* Enable SDMMC Clock */
  371.   __HAL_MMC_ENABLE(hmmc);
  372.  
  373.   /* Required power up waiting time before starting the SD initialization
  374.   sequence */
  375.   HAL_Delay(2U);
  376.  
  377.   /* Identify card operating voltage */
  378.   errorstate = MMC_PowerON(hmmc);
  379.   if(errorstate != HAL_MMC_ERROR_NONE)
  380.   {
  381.     hmmc->State = HAL_MMC_STATE_READY;
  382.     hmmc->ErrorCode |= errorstate;
  383.     return HAL_ERROR;
  384.   }
  385.  
  386.   /* Card initialization */
  387.   errorstate = MMC_InitCard(hmmc);
  388.   if(errorstate != HAL_MMC_ERROR_NONE)
  389.   {
  390.     hmmc->State = HAL_MMC_STATE_READY;
  391.     hmmc->ErrorCode |= errorstate;
  392.     return HAL_ERROR;
  393.   }
  394.  
  395.   return HAL_OK;
  396. }
  397.  
  398. /**
  399.   * @brief  De-Initializes the MMC card.
  400.   * @param  hmmc: Pointer to MMC handle
  401.   * @retval HAL status
  402.   */
  403. HAL_StatusTypeDef HAL_MMC_DeInit(MMC_HandleTypeDef *hmmc)
  404. {
  405.   /* Check the MMC handle allocation */
  406.   if(hmmc == NULL)
  407.   {
  408.     return HAL_ERROR;
  409.   }
  410.  
  411.   /* Check the parameters */
  412.   assert_param(IS_SDIO_ALL_INSTANCE(hmmc->Instance));
  413.  
  414.   hmmc->State = HAL_MMC_STATE_BUSY;
  415.  
  416.   /* Set SD power state to off */
  417.   MMC_PowerOFF(hmmc);
  418.  
  419.   /* De-Initialize the MSP layer */
  420.   HAL_MMC_MspDeInit(hmmc);
  421.  
  422.   hmmc->ErrorCode = HAL_MMC_ERROR_NONE;
  423.   hmmc->State = HAL_MMC_STATE_RESET;
  424.  
  425.   return HAL_OK;
  426. }
  427.  
  428.  
  429. /**
  430.   * @brief  Initializes the MMC MSP.
  431.   * @param  hmmc: Pointer to MMC handle
  432.   * @retval None
  433.   */
  434. __weak void HAL_MMC_MspInit(MMC_HandleTypeDef *hmmc)
  435. {
  436.   /* Prevent unused argument(s) compilation warning */
  437.   UNUSED(hmmc);
  438.  
  439.   /* NOTE : This function Should not be modified, when the callback is needed,
  440.             the HAL_MMC_MspInit could be implemented in the user file
  441.    */
  442. }
  443.  
  444. /**
  445.   * @brief  De-Initialize MMC MSP.
  446.   * @param  hmmc: Pointer to MMC handle
  447.   * @retval None
  448.   */
  449. __weak void HAL_MMC_MspDeInit(MMC_HandleTypeDef *hmmc)
  450. {
  451.   /* Prevent unused argument(s) compilation warning */
  452.   UNUSED(hmmc);
  453.  
  454.   /* NOTE : This function Should not be modified, when the callback is needed,
  455.             the HAL_MMC_MspDeInit could be implemented in the user file
  456.    */
  457. }
  458.  
  459. /**
  460.   * @}
  461.   */
  462.  
  463. /** @addtogroup MMC_Exported_Functions_Group2
  464.  *  @brief   Data transfer functions
  465.  *
  466. @verbatim  
  467.   ==============================================================================
  468.                         ##### IO operation functions #####
  469.   ==============================================================================  
  470.   [..]
  471.     This subsection provides a set of functions allowing to manage the data
  472.     transfer from/to MMC card.
  473.  
  474. @endverbatim
  475.   * @{
  476.   */
  477.  
  478. /**
  479.   * @brief  Reads block(s) from a specified address in a card. The Data transfer
  480.   *         is managed by polling mode.
  481.   * @note   This API should be followed by a check on the card state through
  482.   *         HAL_MMC_GetCardState().
  483.   * @param  hmmc: Pointer to MMC handle
  484.   * @param  pData: pointer to the buffer that will contain the received data
  485.   * @param  BlockAdd: Block Address from where data is to be read
  486.   * @param  NumberOfBlocks: Number of MMC blocks to read
  487.   * @param  Timeout: Specify timeout value
  488.   * @retval HAL status
  489.   */
  490. HAL_StatusTypeDef HAL_MMC_ReadBlocks(MMC_HandleTypeDef *hmmc, uint8_t *pData, uint32_t BlockAdd, uint32_t NumberOfBlocks, uint32_t Timeout)
  491. {
  492.   SDIO_DataInitTypeDef config;
  493.   uint32_t errorstate = HAL_MMC_ERROR_NONE;
  494.   uint32_t tickstart = HAL_GetTick();
  495.   uint32_t count = 0U, *tempbuff = (uint32_t *)pData;
  496.  
  497.   if(NULL == pData)
  498.   {
  499.     hmmc->ErrorCode |= HAL_MMC_ERROR_PARAM;
  500.     return HAL_ERROR;
  501.   }
  502.  
  503.   if(hmmc->State == HAL_MMC_STATE_READY)
  504.   {
  505.     hmmc->ErrorCode = HAL_DMA_ERROR_NONE;
  506.    
  507.     if((BlockAdd + NumberOfBlocks) > (hmmc->MmcCard.LogBlockNbr))
  508.     {
  509.       hmmc->ErrorCode |= HAL_MMC_ERROR_ADDR_OUT_OF_RANGE;
  510.       return HAL_ERROR;
  511.     }
  512.    
  513.     hmmc->State = HAL_MMC_STATE_BUSY;
  514.    
  515.     /* Initialize data control register */
  516.     hmmc->Instance->DCTRL = 0U;
  517.    
  518.     /* Check the Card capacity in term of Logical number of blocks */
  519.     if ((hmmc->MmcCard.LogBlockNbr) < CAPACITY)
  520.     {
  521.       BlockAdd *= 512U;
  522.     }
  523.  
  524.     /* Set Block Size for Card */
  525.     errorstate = SDMMC_CmdBlockLength(hmmc->Instance, BLOCKSIZE);
  526.     if(errorstate != HAL_MMC_ERROR_NONE)
  527.     {
  528.       /* Clear all the static flags */
  529.       __HAL_MMC_CLEAR_FLAG(hmmc, SDIO_STATIC_FLAGS);      
  530.       hmmc->ErrorCode |= errorstate;
  531.       hmmc->State = HAL_MMC_STATE_READY;
  532.       return HAL_ERROR;
  533.     }
  534.    
  535.     /* Configure the MMC DPSM (Data Path State Machine) */
  536.     config.DataTimeOut   = SDMMC_DATATIMEOUT;
  537.     config.DataLength    = NumberOfBlocks * BLOCKSIZE;
  538.     config.DataBlockSize = SDIO_DATABLOCK_SIZE_512B;
  539.     config.TransferDir   = SDIO_TRANSFER_DIR_TO_SDIO;
  540.     config.TransferMode  = SDIO_TRANSFER_MODE_BLOCK;
  541.     config.DPSM          = SDIO_DPSM_ENABLE;
  542.     SDIO_ConfigData(hmmc->Instance, &config);
  543.    
  544.     /* Read block(s) in polling mode */
  545.     if(NumberOfBlocks > 1U)
  546.     {
  547.       hmmc->Context = MMC_CONTEXT_READ_MULTIPLE_BLOCK;
  548.      
  549.       /* Read Multi Block command */
  550.       errorstate = SDMMC_CmdReadMultiBlock(hmmc->Instance, BlockAdd);
  551.     }
  552.     else
  553.     {
  554.       hmmc->Context = MMC_CONTEXT_READ_SINGLE_BLOCK;
  555.      
  556.       /* Read Single Block command */
  557.       errorstate = SDMMC_CmdReadSingleBlock(hmmc->Instance, BlockAdd);
  558.     }
  559.     if(errorstate != HAL_MMC_ERROR_NONE)
  560.     {
  561.       /* Clear all the static flags */
  562.       __HAL_MMC_CLEAR_FLAG(hmmc, SDIO_STATIC_FLAGS);
  563.       hmmc->ErrorCode |= errorstate;
  564.       hmmc->State = HAL_MMC_STATE_READY;
  565.       return HAL_ERROR;
  566.     }
  567.      
  568.     /* Poll on SDMMC flags */
  569. #ifdef SDIO_STA_STBITERR
  570.     while(!__HAL_MMC_GET_FLAG(hmmc, SDIO_FLAG_RXOVERR | SDIO_FLAG_DCRCFAIL | SDIO_FLAG_DTIMEOUT | SDIO_FLAG_DATAEND | SDIO_STA_STBITERR))
  571. #else /* SDIO_STA_STBITERR not defined */
  572.     while(!__HAL_MMC_GET_FLAG(hmmc, SDIO_FLAG_RXOVERR | SDIO_FLAG_DCRCFAIL | SDIO_FLAG_DTIMEOUT | SDIO_FLAG_DATAEND))
  573. #endif /* SDIO_STA_STBITERR */
  574.     {
  575.       if(__HAL_MMC_GET_FLAG(hmmc, SDIO_FLAG_RXFIFOHF))
  576.       {
  577.         /* Read data from SDMMC Rx FIFO */
  578.         for(count = 0U; count < 8U; count++)
  579.         {
  580.           *(tempbuff + count) = SDIO_ReadFIFO(hmmc->Instance);
  581.         }
  582.         tempbuff += 8U;
  583.       }
  584.      
  585.       if((Timeout == 0U)||((HAL_GetTick()-tickstart) >=  Timeout))
  586.       {
  587.         /* Clear all the static flags */
  588.         __HAL_MMC_CLEAR_FLAG(hmmc, SDIO_STATIC_FLAGS);
  589.         hmmc->ErrorCode |= HAL_MMC_ERROR_TIMEOUT;
  590.         hmmc->State= HAL_MMC_STATE_READY;
  591.         return HAL_TIMEOUT;
  592.       }
  593.     }
  594.    
  595.     /* Send stop transmission command in case of multiblock read */
  596.     if(__HAL_MMC_GET_FLAG(hmmc, SDIO_FLAG_DATAEND) && (NumberOfBlocks > 1U))
  597.     {    
  598.       /* Send stop transmission command */
  599.       errorstate = SDMMC_CmdStopTransfer(hmmc->Instance);
  600.       if(errorstate != HAL_MMC_ERROR_NONE)
  601.       {
  602.         /* Clear all the static flags */
  603.         __HAL_MMC_CLEAR_FLAG(hmmc, SDIO_STATIC_FLAGS);
  604.         hmmc->ErrorCode |= errorstate;
  605.         hmmc->State = HAL_MMC_STATE_READY;
  606.         return HAL_ERROR;
  607.       }
  608.     }
  609.    
  610.     /* Get error state */
  611.     if(__HAL_MMC_GET_FLAG(hmmc, SDIO_FLAG_DTIMEOUT))
  612.     {
  613.       /* Clear all the static flags */
  614.       __HAL_MMC_CLEAR_FLAG(hmmc, SDIO_STATIC_FLAGS);
  615.       hmmc->ErrorCode |= HAL_MMC_ERROR_DATA_TIMEOUT;
  616.       hmmc->State = HAL_MMC_STATE_READY;
  617.       return HAL_ERROR;
  618.     }
  619.     else if(__HAL_MMC_GET_FLAG(hmmc, SDIO_FLAG_DCRCFAIL))
  620.     {
  621.       /* Clear all the static flags */
  622.       __HAL_MMC_CLEAR_FLAG(hmmc, SDIO_STATIC_FLAGS);
  623.       hmmc->ErrorCode |= HAL_MMC_ERROR_DATA_CRC_FAIL;
  624.       hmmc->State = HAL_MMC_STATE_READY;
  625.       return HAL_ERROR;
  626.     }
  627.     else if(__HAL_MMC_GET_FLAG(hmmc, SDIO_FLAG_RXOVERR))
  628.     {
  629.       /* Clear all the static flags */
  630.       __HAL_MMC_CLEAR_FLAG(hmmc, SDIO_STATIC_FLAGS);
  631.       hmmc->ErrorCode |= HAL_MMC_ERROR_RX_OVERRUN;
  632.       hmmc->State = HAL_MMC_STATE_READY;
  633.       return HAL_ERROR;
  634.     }
  635.    
  636.     /* Empty FIFO if there is still any data */
  637.     while ((__HAL_MMC_GET_FLAG(hmmc, SDIO_FLAG_RXDAVL)))
  638.     {
  639.       *tempbuff = SDIO_ReadFIFO(hmmc->Instance);
  640.       tempbuff++;
  641.      
  642.       if((Timeout == 0U)||((HAL_GetTick()-tickstart) >=  Timeout))
  643.       {
  644.         /* Clear all the static flags */
  645.         __HAL_MMC_CLEAR_FLAG(hmmc, SDIO_STATIC_FLAGS);        
  646.         hmmc->ErrorCode |= HAL_MMC_ERROR_TIMEOUT;
  647.         hmmc->State= HAL_MMC_STATE_READY;
  648.         return HAL_ERROR;
  649.       }
  650.     }
  651.    
  652.     /* Clear all the static flags */
  653.     __HAL_MMC_CLEAR_FLAG(hmmc, SDIO_STATIC_FLAGS);
  654.    
  655.     hmmc->State = HAL_MMC_STATE_READY;
  656.    
  657.     return HAL_OK;
  658.   }
  659.   else
  660.   {
  661.     hmmc->ErrorCode |= HAL_MMC_ERROR_BUSY;
  662.     return HAL_ERROR;
  663.   }
  664. }
  665.  
  666. /**
  667.   * @brief  Allows to write block(s) to a specified address in a card. The Data
  668.   *         transfer is managed by polling mode.
  669.   * @note   This API should be followed by a check on the card state through
  670.   *         HAL_MMC_GetCardState().
  671.   * @param  hmmc: Pointer to MMC handle
  672.   * @param  pData: pointer to the buffer that will contain the data to transmit
  673.   * @param  BlockAdd: Block Address where data will be written  
  674.   * @param  NumberOfBlocks: Number of MMC blocks to write
  675.   * @param  Timeout: Specify timeout value
  676.   * @retval HAL status
  677.   */
  678. HAL_StatusTypeDef HAL_MMC_WriteBlocks(MMC_HandleTypeDef *hmmc, uint8_t *pData, uint32_t BlockAdd, uint32_t NumberOfBlocks, uint32_t Timeout)
  679. {
  680.   SDIO_DataInitTypeDef config;
  681.   uint32_t errorstate = HAL_MMC_ERROR_NONE;
  682.   uint32_t tickstart = HAL_GetTick();
  683.   uint32_t count = 0U;
  684.   uint32_t *tempbuff = (uint32_t *)pData;
  685.  
  686.   if(NULL == pData)
  687.   {
  688.     hmmc->ErrorCode |= HAL_MMC_ERROR_PARAM;
  689.     return HAL_ERROR;
  690.   }
  691.  
  692.   if(hmmc->State == HAL_MMC_STATE_READY)
  693.   {
  694.     hmmc->ErrorCode = HAL_DMA_ERROR_NONE;
  695.    
  696.     if((BlockAdd + NumberOfBlocks) > (hmmc->MmcCard.LogBlockNbr))
  697.     {
  698.       hmmc->ErrorCode |= HAL_MMC_ERROR_ADDR_OUT_OF_RANGE;
  699.       return HAL_ERROR;
  700.     }
  701.    
  702.     hmmc->State = HAL_MMC_STATE_BUSY;
  703.    
  704.     /* Initialize data control register */
  705.     hmmc->Instance->DCTRL = 0U;
  706.    
  707.     /* Check the Card capacity in term of Logical number of blocks */
  708.     if ((hmmc->MmcCard.LogBlockNbr) < CAPACITY)
  709.     {
  710.       BlockAdd *= 512U;
  711.     }
  712.    
  713.     /* Set Block Size for Card */
  714.     errorstate = SDMMC_CmdBlockLength(hmmc->Instance, BLOCKSIZE);
  715.     if(errorstate != HAL_MMC_ERROR_NONE)
  716.     {
  717.       /* Clear all the static flags */
  718.       __HAL_MMC_CLEAR_FLAG(hmmc, SDIO_STATIC_FLAGS);  
  719.       hmmc->ErrorCode |= errorstate;
  720.       hmmc->State = HAL_MMC_STATE_READY;
  721.       return HAL_ERROR;
  722.     }
  723.    
  724.     /* Write Blocks in Polling mode */
  725.     if(NumberOfBlocks > 1U)
  726.     {
  727.       hmmc->Context = MMC_CONTEXT_WRITE_MULTIPLE_BLOCK;
  728.      
  729.       /* Write Multi Block command */
  730.       errorstate = SDMMC_CmdWriteMultiBlock(hmmc->Instance, BlockAdd);
  731.     }
  732.     else
  733.     {
  734.       hmmc->Context = MMC_CONTEXT_WRITE_SINGLE_BLOCK;
  735.      
  736.       /* Write Single Block command */
  737.       errorstate = SDMMC_CmdWriteSingleBlock(hmmc->Instance, BlockAdd);
  738.     }
  739.     if(errorstate != HAL_MMC_ERROR_NONE)
  740.     {
  741.       /* Clear all the static flags */
  742.       __HAL_MMC_CLEAR_FLAG(hmmc, SDIO_STATIC_FLAGS);  
  743.       hmmc->ErrorCode |= errorstate;
  744.       hmmc->State = HAL_MMC_STATE_READY;
  745.       return HAL_ERROR;
  746.     }
  747.    
  748.     /* Configure the MMC DPSM (Data Path State Machine) */
  749.     config.DataTimeOut   = SDMMC_DATATIMEOUT;
  750.     config.DataLength    = NumberOfBlocks * BLOCKSIZE;
  751.     config.DataBlockSize = SDIO_DATABLOCK_SIZE_512B;
  752.     config.TransferDir   = SDIO_TRANSFER_DIR_TO_CARD;
  753.     config.TransferMode  = SDIO_TRANSFER_MODE_BLOCK;
  754.     config.DPSM          = SDIO_DPSM_ENABLE;
  755.     SDIO_ConfigData(hmmc->Instance, &config);
  756.    
  757.     /* Write block(s) in polling mode */
  758. #ifdef SDIO_STA_STBITERR
  759.     while(!__HAL_MMC_GET_FLAG(hmmc, SDIO_FLAG_TXUNDERR | SDIO_FLAG_DCRCFAIL | SDIO_FLAG_DTIMEOUT | SDIO_FLAG_DATAEND | SDIO_FLAG_STBITERR))
  760. #else /* SDIO_STA_STBITERR not defined */
  761.     while(!__HAL_MMC_GET_FLAG(hmmc, SDIO_FLAG_TXUNDERR | SDIO_FLAG_DCRCFAIL | SDIO_FLAG_DTIMEOUT | SDIO_FLAG_DATAEND))
  762. #endif /* SDIO_STA_STBITERR */
  763.     {
  764.       if(__HAL_MMC_GET_FLAG(hmmc, SDIO_FLAG_TXFIFOHE))
  765.       {
  766.         /* Write data to SDIO Tx FIFO */
  767.         for(count = 0U; count < 8U; count++)
  768.         {
  769.           SDIO_WriteFIFO(hmmc->Instance, (tempbuff + count));
  770.         }
  771.         tempbuff += 8U;
  772.       }
  773.      
  774.       if((Timeout == 0U)||((HAL_GetTick()-tickstart) >=  Timeout))
  775.       {
  776.         /* Clear all the static flags */
  777.         __HAL_MMC_CLEAR_FLAG(hmmc, SDIO_STATIC_FLAGS);  
  778.         hmmc->ErrorCode |= errorstate;
  779.         hmmc->State = HAL_MMC_STATE_READY;
  780.         return HAL_TIMEOUT;
  781.       }
  782.     }
  783.    
  784.     /* Send stop transmission command in case of multiblock write */
  785.     if(__HAL_MMC_GET_FLAG(hmmc, SDIO_FLAG_DATAEND) && (NumberOfBlocks > 1U))
  786.     {
  787.       /* Send stop transmission command */
  788.       errorstate = SDMMC_CmdStopTransfer(hmmc->Instance);
  789.       if(errorstate != HAL_MMC_ERROR_NONE)
  790.       {
  791.         /* Clear all the static flags */
  792.         __HAL_MMC_CLEAR_FLAG(hmmc, SDIO_STATIC_FLAGS);  
  793.         hmmc->ErrorCode |= errorstate;
  794.         hmmc->State = HAL_MMC_STATE_READY;
  795.         return HAL_ERROR;
  796.       }
  797.     }
  798.    
  799.     /* Get error state */
  800.     if(__HAL_MMC_GET_FLAG(hmmc, SDIO_FLAG_DTIMEOUT))
  801.     {
  802.       /* Clear all the static flags */
  803.       __HAL_MMC_CLEAR_FLAG(hmmc, SDIO_STATIC_FLAGS);
  804.       hmmc->ErrorCode |= HAL_MMC_ERROR_DATA_TIMEOUT;
  805.       hmmc->State = HAL_MMC_STATE_READY;
  806.       return HAL_ERROR;
  807.     }
  808.     else if(__HAL_MMC_GET_FLAG(hmmc, SDIO_FLAG_DCRCFAIL))
  809.     {
  810.       /* Clear all the static flags */
  811.       __HAL_MMC_CLEAR_FLAG(hmmc, SDIO_STATIC_FLAGS);
  812.       hmmc->ErrorCode |= HAL_MMC_ERROR_DATA_CRC_FAIL;      
  813.       hmmc->State = HAL_MMC_STATE_READY;
  814.       return HAL_ERROR;
  815.     }
  816.     else if(__HAL_MMC_GET_FLAG(hmmc, SDIO_FLAG_TXUNDERR))
  817.     {
  818.       /* Clear all the static flags */
  819.       __HAL_MMC_CLEAR_FLAG(hmmc, SDIO_STATIC_FLAGS);
  820.       hmmc->ErrorCode |= HAL_MMC_ERROR_TX_UNDERRUN;
  821.       hmmc->State = HAL_MMC_STATE_READY;
  822.       return HAL_ERROR;
  823.     }
  824.    
  825.     /* Clear all the static flags */
  826.     __HAL_MMC_CLEAR_FLAG(hmmc, SDIO_STATIC_FLAGS);
  827.    
  828.     hmmc->State = HAL_MMC_STATE_READY;
  829.    
  830.     return HAL_OK;
  831.   }
  832.   else
  833.   {
  834.     hmmc->ErrorCode |= HAL_MMC_ERROR_BUSY;
  835.     return HAL_ERROR;
  836.   }
  837. }
  838.  
  839. /**
  840.   * @brief  Reads block(s) from a specified address in a card. The Data transfer
  841.   *         is managed in interrupt mode.
  842.   * @note   This API should be followed by a check on the card state through
  843.   *         HAL_MMC_GetCardState().
  844.   * @note   You could also check the IT transfer process through the MMC Rx
  845.   *         interrupt event.
  846.   * @param  hmmc: Pointer to MMC handle                
  847.   * @param  pData: Pointer to the buffer that will contain the received data
  848.   * @param  BlockAdd: Block Address from where data is to be read
  849.   * @param  NumberOfBlocks: Number of blocks to read.
  850.   * @retval HAL status
  851.   */
  852. HAL_StatusTypeDef HAL_MMC_ReadBlocks_IT(MMC_HandleTypeDef *hmmc, uint8_t *pData, uint32_t BlockAdd, uint32_t NumberOfBlocks)
  853. {
  854.   SDIO_DataInitTypeDef config;
  855.   uint32_t errorstate = HAL_MMC_ERROR_NONE;
  856.  
  857.   if(NULL == pData)
  858.   {
  859.     hmmc->ErrorCode |= HAL_MMC_ERROR_PARAM;
  860.     return HAL_ERROR;
  861.   }
  862.  
  863.   if(hmmc->State == HAL_MMC_STATE_READY)
  864.   {
  865.     hmmc->ErrorCode = HAL_DMA_ERROR_NONE;
  866.    
  867.     if((BlockAdd + NumberOfBlocks) > (hmmc->MmcCard.LogBlockNbr))
  868.     {
  869.       hmmc->ErrorCode |= HAL_MMC_ERROR_ADDR_OUT_OF_RANGE;
  870.       return HAL_ERROR;
  871.     }
  872.    
  873.     hmmc->State = HAL_MMC_STATE_BUSY;
  874.    
  875.     /* Initialize data control register */
  876.     hmmc->Instance->DCTRL = 0U;
  877.    
  878.     hmmc->pRxBuffPtr = (uint32_t *)pData;
  879.     hmmc->RxXferSize = BLOCKSIZE * NumberOfBlocks;
  880.    
  881.     __HAL_MMC_ENABLE_IT(hmmc, (SDIO_IT_DCRCFAIL | SDIO_IT_DTIMEOUT | SDIO_IT_RXOVERR | SDIO_IT_DATAEND | SDIO_FLAG_RXFIFOHF));
  882.  
  883.     /* Check the Card capacity in term of Logical number of blocks */
  884.     if ((hmmc->MmcCard.LogBlockNbr) < CAPACITY)
  885.     {
  886.       BlockAdd *= 512U;
  887.     }
  888.    
  889.     /* Configure the MMC DPSM (Data Path State Machine) */
  890.     config.DataTimeOut   = SDMMC_DATATIMEOUT;
  891.     config.DataLength    = BLOCKSIZE * NumberOfBlocks;
  892.     config.DataBlockSize = SDIO_DATABLOCK_SIZE_512B;
  893.     config.TransferDir   = SDIO_TRANSFER_DIR_TO_SDIO;
  894.     config.TransferMode  = SDIO_TRANSFER_MODE_BLOCK;
  895.     config.DPSM          = SDIO_DPSM_ENABLE;
  896.     SDIO_ConfigData(hmmc->Instance, &config);
  897.    
  898.     /* Set Block Size for Card */
  899.     errorstate = SDMMC_CmdBlockLength(hmmc->Instance, BLOCKSIZE);
  900.     if(errorstate != HAL_MMC_ERROR_NONE)
  901.     {
  902.       /* Clear all the static flags */
  903.       __HAL_MMC_CLEAR_FLAG(hmmc, SDIO_STATIC_FLAGS);
  904.       hmmc->ErrorCode |= errorstate;
  905.       hmmc->State = HAL_MMC_STATE_READY;
  906.       return HAL_ERROR;
  907.     }
  908.  
  909.     /* Read Blocks in IT mode */
  910.     if(NumberOfBlocks > 1U)
  911.     {
  912.       hmmc->Context = (MMC_CONTEXT_READ_MULTIPLE_BLOCK | MMC_CONTEXT_IT);
  913.      
  914.       /* Read Multi Block command */
  915.       errorstate = SDMMC_CmdReadMultiBlock(hmmc->Instance, BlockAdd);
  916.     }
  917.     else
  918.     {
  919.       hmmc->Context = (MMC_CONTEXT_READ_SINGLE_BLOCK | MMC_CONTEXT_IT);
  920.      
  921.       /* Read Single Block command */
  922.       errorstate = SDMMC_CmdReadSingleBlock(hmmc->Instance, BlockAdd);
  923.     }
  924.     if(errorstate != HAL_MMC_ERROR_NONE)
  925.     {
  926.       /* Clear all the static flags */
  927.       __HAL_MMC_CLEAR_FLAG(hmmc, SDIO_STATIC_FLAGS);
  928.       hmmc->ErrorCode |= errorstate;
  929.       hmmc->State = HAL_MMC_STATE_READY;
  930.       return HAL_ERROR;
  931.     }
  932.    
  933.     return HAL_OK;
  934.   }
  935.   else
  936.   {
  937.     return HAL_BUSY;
  938.   }
  939. }
  940.  
  941. /**
  942.   * @brief  Writes block(s) to a specified address in a card. The Data transfer
  943.   *         is managed in interrupt mode.
  944.   * @note   This API should be followed by a check on the card state through
  945.   *         HAL_MMC_GetCardState().
  946.   * @note   You could also check the IT transfer process through the MMC Tx
  947.   *         interrupt event.
  948.   * @param  hmmc: Pointer to MMC handle
  949.   * @param  pData: Pointer to the buffer that will contain the data to transmit
  950.   * @param  BlockAdd: Block Address where data will be written    
  951.   * @param  NumberOfBlocks: Number of blocks to write
  952.   * @retval HAL status
  953.   */
  954. HAL_StatusTypeDef HAL_MMC_WriteBlocks_IT(MMC_HandleTypeDef *hmmc, uint8_t *pData, uint32_t BlockAdd, uint32_t NumberOfBlocks)
  955. {
  956.   SDIO_DataInitTypeDef config;
  957.   uint32_t errorstate = HAL_MMC_ERROR_NONE;
  958.  
  959.   if(NULL == pData)
  960.   {
  961.     hmmc->ErrorCode |= HAL_MMC_ERROR_PARAM;
  962.     return HAL_ERROR;
  963.   }
  964.  
  965.   if(hmmc->State == HAL_MMC_STATE_READY)
  966.   {
  967.     hmmc->ErrorCode = HAL_DMA_ERROR_NONE;
  968.    
  969.     if((BlockAdd + NumberOfBlocks) > (hmmc->MmcCard.LogBlockNbr))
  970.     {
  971.       hmmc->ErrorCode |= HAL_MMC_ERROR_ADDR_OUT_OF_RANGE;
  972.       return HAL_ERROR;
  973.     }
  974.    
  975.     hmmc->State = HAL_MMC_STATE_BUSY;
  976.    
  977.     /* Initialize data control register */
  978.     hmmc->Instance->DCTRL = 0U;
  979.  
  980.     hmmc->pTxBuffPtr = (uint32_t *)pData;
  981.     hmmc->TxXferSize = BLOCKSIZE * NumberOfBlocks;
  982.    
  983.     /* Enable transfer interrupts */
  984.     __HAL_MMC_ENABLE_IT(hmmc, (SDIO_IT_DCRCFAIL | SDIO_IT_DTIMEOUT | SDIO_IT_TXUNDERR | SDIO_IT_DATAEND | SDIO_FLAG_TXFIFOHE));
  985.    
  986.     /* Check the Card capacity in term of Logical number of blocks */
  987.     if ((hmmc->MmcCard.LogBlockNbr) < CAPACITY)
  988.     {
  989.       BlockAdd *= 512U;
  990.     }
  991.    
  992.     /* Set Block Size for Card */
  993.     errorstate = SDMMC_CmdBlockLength(hmmc->Instance, BLOCKSIZE);
  994.     if(errorstate != HAL_MMC_ERROR_NONE)
  995.     {
  996.       /* Clear all the static flags */
  997.       __HAL_MMC_CLEAR_FLAG(hmmc, SDIO_STATIC_FLAGS);
  998.       hmmc->ErrorCode |= errorstate;
  999.       hmmc->State = HAL_MMC_STATE_READY;
  1000.       return HAL_ERROR;
  1001.     }
  1002.    
  1003.     /* Write Blocks in Polling mode */
  1004.     if(NumberOfBlocks > 1U)
  1005.     {
  1006.       hmmc->Context = (MMC_CONTEXT_WRITE_MULTIPLE_BLOCK| MMC_CONTEXT_IT);
  1007.      
  1008.       /* Write Multi Block command */
  1009.       errorstate = SDMMC_CmdWriteMultiBlock(hmmc->Instance, BlockAdd);
  1010.     }
  1011.     else
  1012.     {
  1013.       hmmc->Context = (MMC_CONTEXT_WRITE_SINGLE_BLOCK | MMC_CONTEXT_IT);
  1014.      
  1015.       /* Write Single Block command */
  1016.       errorstate = SDMMC_CmdWriteSingleBlock(hmmc->Instance, BlockAdd);
  1017.     }
  1018.     if(errorstate != HAL_MMC_ERROR_NONE)
  1019.     {
  1020.       /* Clear all the static flags */
  1021.       __HAL_MMC_CLEAR_FLAG(hmmc, SDIO_STATIC_FLAGS);
  1022.       hmmc->ErrorCode |= errorstate;
  1023.       hmmc->State = HAL_MMC_STATE_READY;
  1024.       return HAL_ERROR;
  1025.     }
  1026.    
  1027.     /* Configure the MMC DPSM (Data Path State Machine) */
  1028.     config.DataTimeOut   = SDMMC_DATATIMEOUT;
  1029.     config.DataLength    = BLOCKSIZE * NumberOfBlocks;
  1030.     config.DataBlockSize = SDIO_DATABLOCK_SIZE_512B;
  1031.     config.TransferDir   = SDIO_TRANSFER_DIR_TO_CARD;
  1032.     config.TransferMode  = SDIO_TRANSFER_MODE_BLOCK;
  1033.     config.DPSM          = SDIO_DPSM_ENABLE;
  1034.     SDIO_ConfigData(hmmc->Instance, &config);
  1035.    
  1036.     return HAL_OK;
  1037.   }
  1038.   else
  1039.   {
  1040.     return HAL_BUSY;
  1041.   }
  1042. }
  1043.  
  1044. /**
  1045.   * @brief  Reads block(s) from a specified address in a card. The Data transfer
  1046.   *         is managed by DMA mode.
  1047.   * @note   This API should be followed by a check on the card state through
  1048.   *         HAL_MMC_GetCardState().
  1049.   * @note   You could also check the DMA transfer process through the MMC Rx
  1050.   *         interrupt event.
  1051.   * @param  hmmc: Pointer MMC handle                
  1052.   * @param  pData: Pointer to the buffer that will contain the received data
  1053.   * @param  BlockAdd: Block Address from where data is to be read  
  1054.   * @param  NumberOfBlocks: Number of blocks to read.
  1055.   * @retval HAL status
  1056.   */
  1057. HAL_StatusTypeDef HAL_MMC_ReadBlocks_DMA(MMC_HandleTypeDef *hmmc, uint8_t *pData, uint32_t BlockAdd, uint32_t NumberOfBlocks)
  1058. {
  1059.   SDIO_DataInitTypeDef config;
  1060.   uint32_t errorstate = HAL_MMC_ERROR_NONE;
  1061.  
  1062.   if(NULL == pData)
  1063.   {
  1064.     hmmc->ErrorCode |= HAL_MMC_ERROR_PARAM;
  1065.     return HAL_ERROR;
  1066.   }
  1067.  
  1068.   if(hmmc->State == HAL_MMC_STATE_READY)
  1069.   {
  1070.     hmmc->ErrorCode = HAL_DMA_ERROR_NONE;
  1071.    
  1072.     if((BlockAdd + NumberOfBlocks) > (hmmc->MmcCard.LogBlockNbr))
  1073.     {
  1074.       hmmc->ErrorCode |= HAL_MMC_ERROR_ADDR_OUT_OF_RANGE;
  1075.       return HAL_ERROR;
  1076.     }
  1077.    
  1078.     hmmc->State = HAL_MMC_STATE_BUSY;
  1079.    
  1080.     /* Initialize data control register */
  1081.     hmmc->Instance->DCTRL = 0U;
  1082.    
  1083. #ifdef SDIO_STA_STBITER
  1084.     __HAL_MMC_ENABLE_IT(hmmc, (SDIO_IT_DCRCFAIL | SDIO_IT_DTIMEOUT | SDIO_IT_RXOVERR | SDIO_IT_DATAEND | SDIO_IT_STBITERR));
  1085. #else /* SDIO_STA_STBITERR not defined */
  1086.     __HAL_MMC_ENABLE_IT(hmmc, (SDIO_IT_DCRCFAIL | SDIO_IT_DTIMEOUT | SDIO_IT_RXOVERR | SDIO_IT_DATAEND));
  1087. #endif /* SDIO_STA_STBITERR */
  1088.    
  1089.     /* Set the DMA transfer complete callback */
  1090.     hmmc->hdmarx->XferCpltCallback = MMC_DMAReceiveCplt;
  1091.    
  1092.     /* Set the DMA error callback */
  1093.     hmmc->hdmarx->XferErrorCallback = MMC_DMAError;
  1094.    
  1095.     /* Set the DMA Abort callback */
  1096.     hmmc->hdmarx->XferAbortCallback = NULL;
  1097.    
  1098.     /* Enable the DMA Channel */
  1099.     HAL_DMA_Start_IT(hmmc->hdmarx, (uint32_t)&hmmc->Instance->FIFO, (uint32_t)pData, (uint32_t)(BLOCKSIZE * NumberOfBlocks)/4);
  1100.    
  1101.     /* Enable MMC DMA transfer */
  1102.     __HAL_MMC_DMA_ENABLE(hmmc);
  1103.    
  1104.     /* Check the Card capacity in term of Logical number of blocks */
  1105.     if ((hmmc->MmcCard.LogBlockNbr) < CAPACITY)
  1106.     {
  1107.       BlockAdd *= 512U;
  1108.     }
  1109.    
  1110.     /* Configure the MMC DPSM (Data Path State Machine) */
  1111.     config.DataTimeOut   = SDMMC_DATATIMEOUT;
  1112.     config.DataLength    = BLOCKSIZE * NumberOfBlocks;
  1113.     config.DataBlockSize = SDIO_DATABLOCK_SIZE_512B;
  1114.     config.TransferDir   = SDIO_TRANSFER_DIR_TO_SDIO;
  1115.     config.TransferMode  = SDIO_TRANSFER_MODE_BLOCK;
  1116.     config.DPSM          = SDIO_DPSM_ENABLE;
  1117.     SDIO_ConfigData(hmmc->Instance, &config);
  1118.  
  1119.     /* Set Block Size for Card */
  1120.     errorstate = SDMMC_CmdBlockLength(hmmc->Instance, BLOCKSIZE);
  1121.     if(errorstate != HAL_MMC_ERROR_NONE)
  1122.     {
  1123.       /* Clear all the static flags */
  1124.       __HAL_MMC_CLEAR_FLAG(hmmc, SDIO_STATIC_FLAGS);
  1125.       hmmc->ErrorCode |= errorstate;
  1126.       hmmc->State = HAL_MMC_STATE_READY;
  1127.       return HAL_ERROR;
  1128.     }
  1129.        
  1130.     /* Read Blocks in DMA mode */
  1131.     if(NumberOfBlocks > 1U)
  1132.     {
  1133.       hmmc->Context = (MMC_CONTEXT_READ_MULTIPLE_BLOCK | MMC_CONTEXT_DMA);
  1134.      
  1135.       /* Read Multi Block command */
  1136.       errorstate = SDMMC_CmdReadMultiBlock(hmmc->Instance, BlockAdd);
  1137.     }
  1138.     else
  1139.     {
  1140.       hmmc->Context = (MMC_CONTEXT_READ_SINGLE_BLOCK | MMC_CONTEXT_DMA);
  1141.      
  1142.       /* Read Single Block command */
  1143.       errorstate = SDMMC_CmdReadSingleBlock(hmmc->Instance, BlockAdd);
  1144.     }
  1145.     if(errorstate != HAL_MMC_ERROR_NONE)
  1146.     {
  1147.       /* Clear all the static flags */
  1148.       __HAL_MMC_CLEAR_FLAG(hmmc, SDIO_STATIC_FLAGS);
  1149.       hmmc->ErrorCode |= errorstate;
  1150.       hmmc->State = HAL_MMC_STATE_READY;
  1151.       return HAL_ERROR;
  1152.     }
  1153.  
  1154.     return HAL_OK;
  1155.   }
  1156.   else
  1157.   {
  1158.     return HAL_BUSY;
  1159.   }
  1160. }
  1161.  
  1162. /**
  1163.   * @brief  Writes block(s) to a specified address in a card. The Data transfer
  1164.   *         is managed by DMA mode.
  1165.   * @note   This API should be followed by a check on the card state through
  1166.   *         HAL_MMC_GetCardState().
  1167.   * @note   You could also check the DMA transfer process through the MMC Tx
  1168.   *         interrupt event.
  1169.   * @param  hmmc: Pointer to MMC handle
  1170.   * @param  pData: Pointer to the buffer that will contain the data to transmit
  1171.   * @param  BlockAdd: Block Address where data will be written  
  1172.   * @param  NumberOfBlocks: Number of blocks to write
  1173.   * @retval HAL status
  1174.   */
  1175. HAL_StatusTypeDef HAL_MMC_WriteBlocks_DMA(MMC_HandleTypeDef *hmmc, uint8_t *pData, uint32_t BlockAdd, uint32_t NumberOfBlocks)
  1176. {
  1177.   SDIO_DataInitTypeDef config;
  1178.   uint32_t errorstate = HAL_MMC_ERROR_NONE;
  1179.  
  1180.   if(NULL == pData)
  1181.   {
  1182.     hmmc->ErrorCode |= HAL_MMC_ERROR_PARAM;
  1183.     return HAL_ERROR;
  1184.   }
  1185.  
  1186.   if(hmmc->State == HAL_MMC_STATE_READY)
  1187.   {
  1188.     hmmc->ErrorCode = HAL_DMA_ERROR_NONE;
  1189.    
  1190.     if((BlockAdd + NumberOfBlocks) > (hmmc->MmcCard.LogBlockNbr))
  1191.     {
  1192.       hmmc->ErrorCode |= HAL_MMC_ERROR_ADDR_OUT_OF_RANGE;
  1193.       return HAL_ERROR;
  1194.     }
  1195.    
  1196.     hmmc->State = HAL_MMC_STATE_BUSY;
  1197.    
  1198.     /* Initialize data control register */
  1199.     hmmc->Instance->DCTRL = 0U;
  1200.    
  1201.     /* Enable MMC Error interrupts */
  1202. #ifdef SDIO_STA_STBITER
  1203.     __HAL_MMC_ENABLE_IT(hmmc, (SDIO_IT_DCRCFAIL | SDIO_IT_DTIMEOUT | SDIO_IT_TXUNDERR | SDIO_IT_STBITERR));    
  1204. #else /* SDIO_STA_STBITERR not defined */
  1205.     __HAL_MMC_ENABLE_IT(hmmc, (SDIO_IT_DCRCFAIL | SDIO_IT_DTIMEOUT | SDIO_IT_TXUNDERR));    
  1206. #endif /* SDIO_STA_STBITERR */
  1207.    
  1208.     /* Set the DMA transfer complete callback */
  1209.     hmmc->hdmatx->XferCpltCallback = MMC_DMATransmitCplt;
  1210.    
  1211.     /* Set the DMA error callback */
  1212.     hmmc->hdmatx->XferErrorCallback = MMC_DMAError;
  1213.    
  1214.     /* Set the DMA Abort callback */
  1215.     hmmc->hdmatx->XferAbortCallback = NULL;
  1216.    
  1217.     /* Check the Card capacity in term of Logical number of blocks */
  1218.     if ((hmmc->MmcCard.LogBlockNbr) < CAPACITY)
  1219.     {
  1220.       BlockAdd *= 512U;
  1221.     }
  1222.    
  1223.     /* Set Block Size for Card */
  1224.     errorstate = SDMMC_CmdBlockLength(hmmc->Instance, BLOCKSIZE);
  1225.     if(errorstate != HAL_MMC_ERROR_NONE)
  1226.     {
  1227.       /* Clear all the static flags */
  1228.       __HAL_MMC_CLEAR_FLAG(hmmc, SDIO_STATIC_FLAGS);
  1229.       hmmc->ErrorCode |= errorstate;
  1230.       hmmc->State = HAL_MMC_STATE_READY;
  1231.       return HAL_ERROR;
  1232.     }
  1233.    
  1234.     /* Write Blocks in Polling mode */
  1235.     if(NumberOfBlocks > 1U)
  1236.     {
  1237.       hmmc->Context = (MMC_CONTEXT_WRITE_MULTIPLE_BLOCK | MMC_CONTEXT_DMA);
  1238.      
  1239.       /* Write Multi Block command */
  1240.       errorstate = SDMMC_CmdWriteMultiBlock(hmmc->Instance, BlockAdd);
  1241.     }
  1242.     else
  1243.     {
  1244.       hmmc->Context = (MMC_CONTEXT_WRITE_SINGLE_BLOCK | MMC_CONTEXT_DMA);
  1245.      
  1246.       /* Write Single Block command */
  1247.       errorstate = SDMMC_CmdWriteSingleBlock(hmmc->Instance, BlockAdd);
  1248.     }
  1249.     if(errorstate != HAL_MMC_ERROR_NONE)
  1250.     {
  1251.       /* Clear all the static flags */
  1252.       __HAL_MMC_CLEAR_FLAG(hmmc, SDIO_STATIC_FLAGS);
  1253.       hmmc->ErrorCode |= errorstate;
  1254.       hmmc->State = HAL_MMC_STATE_READY;
  1255.       return HAL_ERROR;
  1256.     }
  1257.    
  1258.     /* Enable SDIO DMA transfer */
  1259.     __HAL_MMC_DMA_ENABLE(hmmc);
  1260.    
  1261.     /* Enable the DMA Channel */
  1262.     HAL_DMA_Start_IT(hmmc->hdmatx, (uint32_t)pData, (uint32_t)&hmmc->Instance->FIFO, (uint32_t)(BLOCKSIZE * NumberOfBlocks)/4);
  1263.    
  1264.     /* Configure the MMC DPSM (Data Path State Machine) */
  1265.     config.DataTimeOut   = SDMMC_DATATIMEOUT;
  1266.     config.DataLength    = BLOCKSIZE * NumberOfBlocks;
  1267.     config.DataBlockSize = SDIO_DATABLOCK_SIZE_512B;
  1268.     config.TransferDir   = SDIO_TRANSFER_DIR_TO_CARD;
  1269.     config.TransferMode  = SDIO_TRANSFER_MODE_BLOCK;
  1270.     config.DPSM          = SDIO_DPSM_ENABLE;
  1271.     SDIO_ConfigData(hmmc->Instance, &config);
  1272.    
  1273.     return HAL_OK;
  1274.   }
  1275.   else
  1276.   {
  1277.     return HAL_BUSY;
  1278.   }
  1279. }
  1280.  
  1281. /**
  1282.   * @brief  Erases the specified memory area of the given MMC card.
  1283.   * @note   This API should be followed by a check on the card state through
  1284.   *         HAL_MMC_GetCardState().
  1285.   * @param  hmmc: Pointer to MMC handle
  1286.   * @param  BlockStartAdd: Start Block address
  1287.   * @param  BlockEndAdd: End Block address
  1288.   * @retval HAL status
  1289.   */
  1290. HAL_StatusTypeDef HAL_MMC_Erase(MMC_HandleTypeDef *hmmc, uint32_t BlockStartAdd, uint32_t BlockEndAdd)
  1291. {
  1292.   uint32_t errorstate = HAL_MMC_ERROR_NONE;
  1293.  
  1294.   if(hmmc->State == HAL_MMC_STATE_READY)
  1295.   {
  1296.     hmmc->ErrorCode = HAL_DMA_ERROR_NONE;
  1297.    
  1298.     if(BlockEndAdd < BlockStartAdd)
  1299.     {
  1300.       hmmc->ErrorCode |= HAL_MMC_ERROR_PARAM;
  1301.       return HAL_ERROR;
  1302.     }
  1303.    
  1304.     if(BlockEndAdd > (hmmc->MmcCard.LogBlockNbr))
  1305.     {
  1306.       hmmc->ErrorCode |= HAL_MMC_ERROR_ADDR_OUT_OF_RANGE;
  1307.       return HAL_ERROR;
  1308.     }
  1309.    
  1310.     hmmc->State = HAL_MMC_STATE_BUSY;
  1311.    
  1312.     /* Check if the card command class supports erase command */
  1313.     if(((hmmc->MmcCard.Class) & SDIO_CCCC_ERASE) == 0U)
  1314.     {
  1315.       /* Clear all the static flags */
  1316.       __HAL_MMC_CLEAR_FLAG(hmmc, SDIO_STATIC_FLAGS);
  1317.       hmmc->ErrorCode |= HAL_MMC_ERROR_REQUEST_NOT_APPLICABLE;
  1318.       hmmc->State = HAL_MMC_STATE_READY;
  1319.       return HAL_ERROR;
  1320.     }
  1321.    
  1322.     if((SDIO_GetResponse(hmmc->Instance, SDIO_RESP1) & SDMMC_CARD_LOCKED) == SDMMC_CARD_LOCKED)
  1323.     {
  1324.       /* Clear all the static flags */
  1325.       __HAL_MMC_CLEAR_FLAG(hmmc, SDIO_STATIC_FLAGS);  
  1326.       hmmc->ErrorCode |= HAL_MMC_ERROR_LOCK_UNLOCK_FAILED;
  1327.       hmmc->State = HAL_MMC_STATE_READY;
  1328.       return HAL_ERROR;
  1329.     }
  1330.    
  1331.     /* Check the Card capacity in term of Logical number of blocks */
  1332.     if ((hmmc->MmcCard.LogBlockNbr) < CAPACITY)
  1333.     {
  1334.       BlockStartAdd *= 512U;
  1335.       BlockEndAdd   *= 512U;
  1336.     }
  1337.  
  1338.     /* Send CMD35 MMC_ERASE_GRP_START with argument as addr  */
  1339.     errorstate = SDMMC_CmdEraseStartAdd(hmmc->Instance, BlockStartAdd);
  1340.     if(errorstate != HAL_MMC_ERROR_NONE)
  1341.     {
  1342.       /* Clear all the static flags */
  1343.       __HAL_MMC_CLEAR_FLAG(hmmc, SDIO_STATIC_FLAGS);
  1344.       hmmc->ErrorCode |= errorstate;
  1345.       hmmc->State = HAL_MMC_STATE_READY;
  1346.       return HAL_ERROR;
  1347.     }
  1348.    
  1349.     /* Send CMD36 MMC_ERASE_GRP_END with argument as addr  */
  1350.     errorstate = SDMMC_CmdEraseEndAdd(hmmc->Instance, BlockEndAdd);
  1351.     if(errorstate != HAL_MMC_ERROR_NONE)
  1352.     {
  1353.       /* Clear all the static flags */
  1354.       __HAL_MMC_CLEAR_FLAG(hmmc, SDIO_STATIC_FLAGS);
  1355.       hmmc->ErrorCode |= errorstate;
  1356.       hmmc->State = HAL_MMC_STATE_READY;
  1357.       return HAL_ERROR;
  1358.     }
  1359.    
  1360.     /* Send CMD38 ERASE */
  1361.     errorstate = SDMMC_CmdErase(hmmc->Instance);
  1362.     if(errorstate != HAL_MMC_ERROR_NONE)
  1363.     {
  1364.       /* Clear all the static flags */
  1365.       __HAL_MMC_CLEAR_FLAG(hmmc, SDIO_STATIC_FLAGS);
  1366.       hmmc->ErrorCode |= errorstate;
  1367.       hmmc->State = HAL_MMC_STATE_READY;
  1368.       return HAL_ERROR;
  1369.     }
  1370.    
  1371.     hmmc->State = HAL_MMC_STATE_READY;
  1372.    
  1373.     return HAL_OK;
  1374.   }
  1375.   else
  1376.   {
  1377.     return HAL_BUSY;
  1378.   }
  1379. }
  1380.  
  1381. /**
  1382.   * @brief  This function handles MMC card interrupt request.
  1383.   * @param  hmmc: Pointer to MMC handle
  1384.   * @retval None
  1385.   */
  1386. void HAL_MMC_IRQHandler(MMC_HandleTypeDef *hmmc)
  1387. {
  1388.   uint32_t errorstate = HAL_MMC_ERROR_NONE;
  1389.  
  1390.   /* Check for SDIO interrupt flags */
  1391.   if(__HAL_MMC_GET_FLAG(hmmc, SDIO_IT_DATAEND) != RESET)
  1392.   {
  1393.     __HAL_MMC_CLEAR_FLAG(hmmc, SDIO_FLAG_DATAEND);
  1394.    
  1395. #ifdef SDIO_STA_STBITERR
  1396.     __HAL_MMC_DISABLE_IT(hmmc, SDIO_IT_DATAEND | SDIO_IT_DCRCFAIL | SDIO_IT_DTIMEOUT|\
  1397.                                SDIO_IT_TXUNDERR | SDIO_IT_RXOVERR | SDIO_IT_STBITERR);
  1398. #else /* SDIO_STA_STBITERR not defined */
  1399.     __HAL_MMC_DISABLE_IT(hmmc, SDIO_IT_DATAEND | SDIO_IT_DCRCFAIL | SDIO_IT_DTIMEOUT|\
  1400.                                SDIO_IT_TXUNDERR | SDIO_IT_RXOVERR);
  1401. #endif
  1402.    
  1403.     if((hmmc->Context & MMC_CONTEXT_IT) != RESET)
  1404.     {
  1405.       if(((hmmc->Context & MMC_CONTEXT_READ_MULTIPLE_BLOCK) != RESET) || ((hmmc->Context & MMC_CONTEXT_WRITE_MULTIPLE_BLOCK) != RESET))
  1406.       {
  1407.         errorstate = SDMMC_CmdStopTransfer(hmmc->Instance);
  1408.         if(errorstate != HAL_MMC_ERROR_NONE)
  1409.         {
  1410.           hmmc->ErrorCode |= errorstate;
  1411.           HAL_MMC_ErrorCallback(hmmc);
  1412.         }
  1413.       }
  1414.      
  1415.       /* Clear all the static flags */
  1416.       __HAL_MMC_CLEAR_FLAG(hmmc, SDIO_STATIC_FLAGS);
  1417.      
  1418.       hmmc->State = HAL_MMC_STATE_READY;
  1419.       if(((hmmc->Context & MMC_CONTEXT_READ_SINGLE_BLOCK) != RESET) || ((hmmc->Context & MMC_CONTEXT_READ_MULTIPLE_BLOCK) != RESET))
  1420.       {
  1421.         HAL_MMC_RxCpltCallback(hmmc);
  1422.       }
  1423.       else
  1424.       {
  1425.         HAL_MMC_TxCpltCallback(hmmc);
  1426.       }
  1427.     }
  1428.     else if((hmmc->Context & MMC_CONTEXT_DMA) != RESET)
  1429.     {
  1430.       if((hmmc->Context & MMC_CONTEXT_WRITE_MULTIPLE_BLOCK) != RESET)
  1431.       {
  1432.         errorstate = SDMMC_CmdStopTransfer(hmmc->Instance);
  1433.         if(errorstate != HAL_MMC_ERROR_NONE)
  1434.         {
  1435.           hmmc->ErrorCode |= errorstate;
  1436.           HAL_MMC_ErrorCallback(hmmc);
  1437.         }
  1438.       }
  1439.       if(((hmmc->Context & MMC_CONTEXT_READ_SINGLE_BLOCK) == RESET) && ((hmmc->Context & MMC_CONTEXT_READ_MULTIPLE_BLOCK) == RESET))
  1440.       {
  1441.         /* Disable the DMA transfer for transmit request by setting the DMAEN bit
  1442.         in the MMC DCTRL register */
  1443.         hmmc->Instance->DCTRL &= (uint32_t)~((uint32_t)SDIO_DCTRL_DMAEN);
  1444.        
  1445.         hmmc->State = HAL_MMC_STATE_READY;
  1446.        
  1447.         HAL_MMC_TxCpltCallback(hmmc);
  1448.       }
  1449.     }
  1450.   }
  1451.  
  1452.   else if(__HAL_MMC_GET_FLAG(hmmc, SDIO_IT_TXFIFOHE) != RESET)
  1453.   {
  1454.     __HAL_MMC_CLEAR_FLAG(hmmc, SDIO_FLAG_TXFIFOHE);
  1455.    
  1456.     MMC_Write_IT(hmmc);
  1457.   }
  1458.  
  1459.   else if(__HAL_MMC_GET_FLAG(hmmc, SDIO_IT_RXFIFOHF) != RESET)
  1460.   {
  1461.     __HAL_MMC_CLEAR_FLAG(hmmc, SDIO_FLAG_RXFIFOHF);
  1462.    
  1463.     MMC_Read_IT(hmmc);
  1464.   }
  1465.  
  1466. #ifdef SDIO_STA_STBITERR
  1467.   else if(__HAL_MMC_GET_FLAG(hmmc, SDIO_IT_DCRCFAIL | SDIO_IT_DTIMEOUT | SDIO_IT_RXOVERR | SDIO_IT_TXUNDERR | SDIO_IT_STBITERR) != RESET)
  1468.   {
  1469.     /* Set Error code */
  1470.     if(__HAL_MMC_GET_FLAG(hmmc, SDIO_IT_DCRCFAIL) != RESET)
  1471.     {
  1472.       hmmc->ErrorCode |= HAL_MMC_ERROR_DATA_CRC_FAIL;
  1473.     }
  1474.     if(__HAL_MMC_GET_FLAG(hmmc, SDIO_IT_DTIMEOUT) != RESET)
  1475.     {
  1476.       hmmc->ErrorCode |= HAL_MMC_ERROR_DATA_TIMEOUT;
  1477.     }
  1478.     if(__HAL_MMC_GET_FLAG(hmmc, SDIO_IT_RXOVERR) != RESET)
  1479.     {
  1480.       hmmc->ErrorCode |= HAL_MMC_ERROR_RX_OVERRUN;
  1481.     }
  1482.     if(__HAL_MMC_GET_FLAG(hmmc, SDIO_IT_TXUNDERR) != RESET)
  1483.     {
  1484.       hmmc->ErrorCode |= HAL_MMC_ERROR_TX_UNDERRUN;
  1485.     }
  1486.     if(__HAL_MMC_GET_FLAG(hmmc, SDIO_IT_STBITERR) != RESET)
  1487.     {
  1488.       hmmc->ErrorCode |= HAL_MMC_ERROR_DATA_TIMEOUT;
  1489.     }
  1490.  
  1491.     /* Clear All flags */
  1492.     __HAL_MMC_CLEAR_FLAG(hmmc, SDIO_STATIC_FLAGS | SDIO_FLAG_STBITERR);
  1493.    
  1494.     /* Disable all interrupts */
  1495.     __HAL_MMC_DISABLE_IT(hmmc, SDIO_IT_DATAEND | SDIO_IT_DCRCFAIL | SDIO_IT_DTIMEOUT|\
  1496.                                SDIO_IT_TXUNDERR| SDIO_IT_RXOVERR |SDIO_IT_STBITERR);
  1497.    
  1498.     if((hmmc->Context & MMC_CONTEXT_DMA) != RESET)
  1499.     {
  1500.       /* Abort the MMC DMA Streams */
  1501.       if(hmmc->hdmatx != NULL)
  1502.       {
  1503.         /* Set the DMA Tx abort callback */
  1504.         hmmc->hdmatx->XferAbortCallback = MMC_DMATxAbort;
  1505.         /* Abort DMA in IT mode */
  1506.         if(HAL_DMA_Abort_IT(hmmc->hdmatx) != HAL_OK)
  1507.         {
  1508.           MMC_DMATxAbort(hmmc->hdmatx);
  1509.         }
  1510.       }
  1511.       else if(hmmc->hdmarx != NULL)
  1512.       {
  1513.         /* Set the DMA Rx abort callback */
  1514.         hmmc->hdmarx->XferAbortCallback = MMC_DMARxAbort;
  1515.         /* Abort DMA in IT mode */
  1516.         if(HAL_DMA_Abort_IT(hmmc->hdmarx) != HAL_OK)
  1517.         {
  1518.           MMC_DMARxAbort(hmmc->hdmarx);
  1519.         }
  1520.       }
  1521.       else
  1522.       {
  1523.         hmmc->ErrorCode = HAL_MMC_ERROR_NONE;
  1524.         hmmc->State = HAL_MMC_STATE_READY;
  1525.         HAL_MMC_AbortCallback(hmmc);
  1526.       }
  1527.     }
  1528.     else if((hmmc->Context & MMC_CONTEXT_IT) != RESET)
  1529.     {
  1530.       /* Set the MMC state to ready to be able to start again the process */
  1531.       hmmc->State = HAL_MMC_STATE_READY;
  1532.       HAL_MMC_ErrorCallback(hmmc);
  1533.     }
  1534.   }
  1535. #else /* SDIO_STA_STBITERR not defined */
  1536.   else if(__HAL_MMC_GET_FLAG(hmmc, SDIO_IT_DCRCFAIL | SDIO_IT_DTIMEOUT | SDIO_IT_RXOVERR | SDIO_IT_TXUNDERR) != RESET)
  1537.   {
  1538.     /* Set Error code */
  1539.     if(__HAL_MMC_GET_FLAG(hmmc, SDIO_IT_DCRCFAIL) != RESET)
  1540.     {
  1541.       hmmc->ErrorCode |= HAL_MMC_ERROR_DATA_CRC_FAIL;
  1542.     }
  1543.     if(__HAL_MMC_GET_FLAG(hmmc, SDIO_IT_DTIMEOUT) != RESET)
  1544.     {
  1545.       hmmc->ErrorCode |= HAL_MMC_ERROR_DATA_TIMEOUT;
  1546.     }
  1547.     if(__HAL_MMC_GET_FLAG(hmmc, SDIO_IT_RXOVERR) != RESET)
  1548.     {
  1549.       hmmc->ErrorCode |= HAL_MMC_ERROR_RX_OVERRUN;
  1550.     }
  1551.     if(__HAL_MMC_GET_FLAG(hmmc, SDIO_IT_TXUNDERR) != RESET)
  1552.     {
  1553.       hmmc->ErrorCode |= HAL_MMC_ERROR_TX_UNDERRUN;
  1554.     }
  1555.  
  1556.     /* Clear All flags */
  1557.     __HAL_MMC_CLEAR_FLAG(hmmc, SDIO_STATIC_FLAGS);
  1558.    
  1559.     /* Disable all interrupts */
  1560.     __HAL_MMC_DISABLE_IT(hmmc, SDIO_IT_DATAEND | SDIO_IT_DCRCFAIL | SDIO_IT_DTIMEOUT|\
  1561.                                SDIO_IT_TXUNDERR| SDIO_IT_RXOVERR);
  1562.    
  1563.     if((hmmc->Context & MMC_CONTEXT_DMA) != RESET)
  1564.     {
  1565.       /* Abort the MMC DMA Streams */
  1566.       if(hmmc->hdmatx != NULL)
  1567.       {
  1568.         /* Set the DMA Tx abort callback */
  1569.         hmmc->hdmatx->XferAbortCallback = MMC_DMATxAbort;
  1570.         /* Abort DMA in IT mode */
  1571.         if(HAL_DMA_Abort_IT(hmmc->hdmatx) != HAL_OK)
  1572.         {
  1573.           MMC_DMATxAbort(hmmc->hdmatx);
  1574.         }
  1575.       }
  1576.       else if(hmmc->hdmarx != NULL)
  1577.       {
  1578.         /* Set the DMA Rx abort callback */
  1579.         hmmc->hdmarx->XferAbortCallback = MMC_DMARxAbort;
  1580.         /* Abort DMA in IT mode */
  1581.         if(HAL_DMA_Abort_IT(hmmc->hdmarx) != HAL_OK)
  1582.         {
  1583.           MMC_DMARxAbort(hmmc->hdmarx);
  1584.         }
  1585.       }
  1586.       else
  1587.       {
  1588.         hmmc->ErrorCode = HAL_MMC_ERROR_NONE;
  1589.         hmmc->State = HAL_MMC_STATE_READY;
  1590.         HAL_MMC_AbortCallback(hmmc);
  1591.       }
  1592.     }
  1593.     else if((hmmc->Context & MMC_CONTEXT_IT) != RESET)
  1594.     {
  1595.       /* Set the MMC state to ready to be able to start again the process */
  1596.       hmmc->State = HAL_MMC_STATE_READY;
  1597.       HAL_MMC_ErrorCallback(hmmc);
  1598.     }
  1599.   }
  1600. #endif /* SDIO_STA_STBITERR */
  1601. }
  1602.  
  1603. /**
  1604.   * @brief return the MMC state
  1605.   * @param hmmc: Pointer to mmc handle
  1606.   * @retval HAL state
  1607.   */
  1608. HAL_MMC_StateTypeDef HAL_MMC_GetState(MMC_HandleTypeDef *hmmc)
  1609. {
  1610.   return hmmc->State;
  1611. }
  1612.  
  1613. /**
  1614. * @brief  Return the MMC error code
  1615. * @param  hmmc : Pointer to a MMC_HandleTypeDef structure that contains
  1616.   *              the configuration information.
  1617. * @retval MMC Error Code
  1618. */
  1619. uint32_t HAL_MMC_GetError(MMC_HandleTypeDef *hmmc)
  1620. {
  1621.   return hmmc->ErrorCode;
  1622. }
  1623.  
  1624. /**
  1625.   * @brief Tx Transfer completed callbacks
  1626.   * @param hmmc: Pointer to MMC handle
  1627.   * @retval None
  1628.   */
  1629.  __weak void HAL_MMC_TxCpltCallback(MMC_HandleTypeDef *hmmc)
  1630. {
  1631.   /* Prevent unused argument(s) compilation warning */
  1632.   UNUSED(hmmc);
  1633.  
  1634.   /* NOTE : This function should not be modified, when the callback is needed,
  1635.             the HAL_MMC_TxCpltCallback can be implemented in the user file
  1636.    */
  1637. }
  1638.  
  1639. /**
  1640.   * @brief Rx Transfer completed callbacks
  1641.   * @param hmmc: Pointer MMC handle
  1642.   * @retval None
  1643.   */
  1644. __weak void HAL_MMC_RxCpltCallback(MMC_HandleTypeDef *hmmc)
  1645. {
  1646.   /* Prevent unused argument(s) compilation warning */
  1647.   UNUSED(hmmc);
  1648.  
  1649.   /* NOTE : This function should not be modified, when the callback is needed,
  1650.             the HAL_MMC_RxCpltCallback can be implemented in the user file
  1651.    */
  1652. }
  1653.  
  1654. /**
  1655.   * @brief MMC error callbacks
  1656.   * @param hmmc: Pointer MMC handle
  1657.   * @retval None
  1658.   */
  1659. __weak void HAL_MMC_ErrorCallback(MMC_HandleTypeDef *hmmc)
  1660. {
  1661.   /* Prevent unused argument(s) compilation warning */
  1662.   UNUSED(hmmc);
  1663.  
  1664.   /* NOTE : This function should not be modified, when the callback is needed,
  1665.             the HAL_MMC_ErrorCallback can be implemented in the user file
  1666.    */
  1667. }
  1668.  
  1669. /**
  1670.   * @brief MMC Abort callbacks
  1671.   * @param hmmc: Pointer MMC handle
  1672.   * @retval None
  1673.   */
  1674. __weak void HAL_MMC_AbortCallback(MMC_HandleTypeDef *hmmc)
  1675. {
  1676.   /* Prevent unused argument(s) compilation warning */
  1677.   UNUSED(hmmc);
  1678.  
  1679.   /* NOTE : This function should not be modified, when the callback is needed,
  1680.             the HAL_MMC_ErrorCallback can be implemented in the user file
  1681.    */
  1682. }
  1683.  
  1684.  
  1685. /**
  1686.   * @}
  1687.   */
  1688.  
  1689. /** @addtogroup MMC_Exported_Functions_Group3
  1690.  *  @brief   management functions
  1691.  *
  1692. @verbatim  
  1693.   ==============================================================================
  1694.                       ##### Peripheral Control functions #####
  1695.   ==============================================================================  
  1696.   [..]
  1697.     This subsection provides a set of functions allowing to control the MMC card
  1698.     operations and get the related information
  1699.  
  1700. @endverbatim
  1701.   * @{
  1702.   */
  1703.  
  1704. /**
  1705.   * @brief  Returns information the information of the card which are stored on
  1706.   *         the CID register.
  1707.   * @param  hmmc: Pointer to MMC handle
  1708.   * @param  pCID: Pointer to a HAL_MMC_CIDTypedef structure that  
  1709.   *         contains all CID register parameters
  1710.   * @retval HAL status
  1711.   */
  1712. HAL_StatusTypeDef HAL_MMC_GetCardCID(MMC_HandleTypeDef *hmmc, HAL_MMC_CardCIDTypeDef *pCID)
  1713. {
  1714.   uint32_t tmp = 0U;
  1715.  
  1716.   /* Byte 0 */
  1717.   tmp = (uint8_t)((hmmc->CID[0U] & 0xFF000000U) >> 24U);
  1718.   pCID->ManufacturerID = tmp;
  1719.  
  1720.   /* Byte 1 */
  1721.   tmp = (uint8_t)((hmmc->CID[0U] & 0x00FF0000U) >> 16U);
  1722.   pCID->OEM_AppliID = tmp << 8U;
  1723.  
  1724.   /* Byte 2 */
  1725.   tmp = (uint8_t)((hmmc->CID[0U] & 0x000000FF00U) >> 8U);
  1726.   pCID->OEM_AppliID |= tmp;
  1727.  
  1728.   /* Byte 3 */
  1729.   tmp = (uint8_t)(hmmc->CID[0U] & 0x000000FFU);
  1730.   pCID->ProdName1 = tmp << 24U;
  1731.  
  1732.   /* Byte 4 */
  1733.   tmp = (uint8_t)((hmmc->CID[1U] & 0xFF000000U) >> 24U);
  1734.   pCID->ProdName1 |= tmp << 16U;
  1735.  
  1736.   /* Byte 5 */
  1737.   tmp = (uint8_t)((hmmc->CID[1U] & 0x00FF0000U) >> 16U);
  1738.   pCID->ProdName1 |= tmp << 8U;
  1739.  
  1740.   /* Byte 6 */
  1741.   tmp = (uint8_t)((hmmc->CID[1U] & 0x0000FF00U) >> 8U);
  1742.   pCID->ProdName1 |= tmp;
  1743.  
  1744.   /* Byte 7 */
  1745.   tmp = (uint8_t)(hmmc->CID[1U] & 0x000000FFU);
  1746.   pCID->ProdName2 = tmp;
  1747.  
  1748.   /* Byte 8 */
  1749.   tmp = (uint8_t)((hmmc->CID[2U] & 0xFF000000U) >> 24U);
  1750.   pCID->ProdRev = tmp;
  1751.  
  1752.   /* Byte 9 */
  1753.   tmp = (uint8_t)((hmmc->CID[2U] & 0x00FF0000U) >> 16U);
  1754.   pCID->ProdSN = tmp << 24U;
  1755.  
  1756.   /* Byte 10 */
  1757.   tmp = (uint8_t)((hmmc->CID[2U] & 0x0000FF00U) >> 8U);
  1758.   pCID->ProdSN |= tmp << 16U;
  1759.  
  1760.   /* Byte 11 */
  1761.   tmp = (uint8_t)(hmmc->CID[2U] & 0x000000FFU);
  1762.   pCID->ProdSN |= tmp << 8U;
  1763.  
  1764.   /* Byte 12 */
  1765.   tmp = (uint8_t)((hmmc->CID[3U] & 0xFF000000U) >> 24U);
  1766.   pCID->ProdSN |= tmp;
  1767.  
  1768.   /* Byte 13 */
  1769.   tmp = (uint8_t)((hmmc->CID[3U] & 0x00FF0000U) >> 16U);
  1770.   pCID->Reserved1   |= (tmp & 0xF0U) >> 4U;
  1771.   pCID->ManufactDate = (tmp & 0x0FU) << 8U;
  1772.  
  1773.   /* Byte 14 */
  1774.   tmp = (uint8_t)((hmmc->CID[3U] & 0x0000FF00U) >> 8U);
  1775.   pCID->ManufactDate |= tmp;
  1776.  
  1777.   /* Byte 15 */
  1778.   tmp = (uint8_t)(hmmc->CID[3U] & 0x000000FFU);
  1779.   pCID->CID_CRC   = (tmp & 0xFEU) >> 1U;
  1780.   pCID->Reserved2 = 1U;
  1781.  
  1782.   return HAL_OK;
  1783. }
  1784.  
  1785. /**
  1786.   * @brief  Returns information the information of the card which are stored on
  1787.   *         the CSD register.
  1788.   * @param  hmmc: Pointer to MMC handle
  1789.   * @param  pCSD: Pointer to a HAL_MMC_CardInfoTypeDef structure that  
  1790.   *         contains all CSD register parameters  
  1791.   * @retval HAL status
  1792.   */
  1793. HAL_StatusTypeDef HAL_MMC_GetCardCSD(MMC_HandleTypeDef *hmmc, HAL_MMC_CardCSDTypeDef *pCSD)
  1794. {
  1795.   uint32_t tmp = 0U;
  1796.  
  1797.   /* Byte 0 */
  1798.   tmp = (hmmc->CSD[0U] & 0xFF000000U) >> 24U;
  1799.   pCSD->CSDStruct      = (uint8_t)((tmp & 0xC0U) >> 6U);
  1800.   pCSD->SysSpecVersion = (uint8_t)((tmp & 0x3CU) >> 2U);
  1801.   pCSD->Reserved1      = tmp & 0x03U;
  1802.  
  1803.   /* Byte 1 */
  1804.   tmp = (hmmc->CSD[0U] & 0x00FF0000U) >> 16U;
  1805.   pCSD->TAAC = (uint8_t)tmp;
  1806.  
  1807.   /* Byte 2 */
  1808.   tmp = (hmmc->CSD[0U] & 0x0000FF00U) >> 8U;
  1809.   pCSD->NSAC = (uint8_t)tmp;
  1810.  
  1811.   /* Byte 3 */
  1812.   tmp = hmmc->CSD[0U] & 0x000000FFU;
  1813.   pCSD->MaxBusClkFrec = (uint8_t)tmp;
  1814.  
  1815.   /* Byte 4 */
  1816.   tmp = (hmmc->CSD[1U] & 0xFF000000U) >> 24U;
  1817.   pCSD->CardComdClasses = (uint16_t)(tmp << 4U);
  1818.  
  1819.   /* Byte 5 */
  1820.   tmp = (hmmc->CSD[1U] & 0x00FF0000U) >> 16U;
  1821.   pCSD->CardComdClasses |= (uint16_t)((tmp & 0xF0U) >> 4U);
  1822.   pCSD->RdBlockLen       = (uint8_t)(tmp & 0x0FU);
  1823.  
  1824.   /* Byte 6 */
  1825.   tmp = (hmmc->CSD[1U] & 0x0000FF00U) >> 8U;
  1826.   pCSD->PartBlockRead   = (uint8_t)((tmp & 0x80U) >> 7U);
  1827.   pCSD->WrBlockMisalign = (uint8_t)((tmp & 0x40U) >> 6U);
  1828.   pCSD->RdBlockMisalign = (uint8_t)((tmp & 0x20U) >> 5U);
  1829.   pCSD->DSRImpl         = (uint8_t)((tmp & 0x10U) >> 4U);
  1830.   pCSD->Reserved2       = 0; /*!< Reserved */
  1831.        
  1832.   pCSD->DeviceSize = (tmp & 0x03U) << 10U;
  1833.  
  1834.   /* Byte 7 */
  1835.   tmp = (uint8_t)(hmmc->CSD[1U] & 0x000000FFU);
  1836.   pCSD->DeviceSize |= (tmp) << 2U;
  1837.  
  1838.   /* Byte 8 */
  1839.   tmp = (uint8_t)((hmmc->CSD[2U] & 0xFF000000U) >> 24U);
  1840.   pCSD->DeviceSize |= (tmp & 0xC0U) >> 6U;
  1841.  
  1842.   pCSD->MaxRdCurrentVDDMin = (tmp & 0x38U) >> 3U;
  1843.   pCSD->MaxRdCurrentVDDMax = (tmp & 0x07U);
  1844.  
  1845.   /* Byte 9 */
  1846.   tmp = (uint8_t)((hmmc->CSD[2U] & 0x00FF0000U) >> 16U);
  1847.   pCSD->MaxWrCurrentVDDMin = (tmp & 0xE0U) >> 5U;
  1848.   pCSD->MaxWrCurrentVDDMax = (tmp & 0x1CU) >> 2U;
  1849.   pCSD->DeviceSizeMul      = (tmp & 0x03U) << 1U;
  1850.   /* Byte 10 */
  1851.   tmp = (uint8_t)((hmmc->CSD[2] & 0x0000FF00U) >> 8U);
  1852.   pCSD->DeviceSizeMul |= (tmp & 0x80U) >> 7U;
  1853.  
  1854.   hmmc->MmcCard.BlockNbr  = (pCSD->DeviceSize + 1U) ;
  1855.   hmmc->MmcCard.BlockNbr *= (1U << (pCSD->DeviceSizeMul + 2U));
  1856.   hmmc->MmcCard.BlockSize = 1U << (pCSD->RdBlockLen);
  1857.  
  1858.   hmmc->MmcCard.LogBlockNbr =  (hmmc->MmcCard.BlockNbr) * ((hmmc->MmcCard.BlockSize) / 512U);
  1859.   hmmc->MmcCard.LogBlockSize = 512U;
  1860.  
  1861.   pCSD->EraseGrSize = (tmp & 0x40U) >> 6U;
  1862.   pCSD->EraseGrMul  = (tmp & 0x3FU) << 1U;
  1863.  
  1864.   /* Byte 11 */
  1865.   tmp = (uint8_t)(hmmc->CSD[2U] & 0x000000FFU);
  1866.   pCSD->EraseGrMul     |= (tmp & 0x80U) >> 7U;
  1867.   pCSD->WrProtectGrSize = (tmp & 0x7FU);
  1868.  
  1869.   /* Byte 12 */
  1870.   tmp = (uint8_t)((hmmc->CSD[3U] & 0xFF000000U) >> 24U);
  1871.   pCSD->WrProtectGrEnable = (tmp & 0x80U) >> 7U;
  1872.   pCSD->ManDeflECC        = (tmp & 0x60U) >> 5U;
  1873.   pCSD->WrSpeedFact       = (tmp & 0x1CU) >> 2U;
  1874.   pCSD->MaxWrBlockLen     = (tmp & 0x03U) << 2U;
  1875.  
  1876.   /* Byte 13 */
  1877.   tmp = (uint8_t)((hmmc->CSD[3U] & 0x00FF0000U) >> 16U);
  1878.   pCSD->MaxWrBlockLen      |= (tmp & 0xC0U) >> 6U;
  1879.   pCSD->WriteBlockPaPartial = (tmp & 0x20U) >> 5U;
  1880.   pCSD->Reserved3           = 0U;
  1881.   pCSD->ContentProtectAppli = (tmp & 0x01U);
  1882.  
  1883.   /* Byte 14 */
  1884.   tmp = (uint8_t)((hmmc->CSD[3U] & 0x0000FF00U) >> 8U);
  1885.   pCSD->FileFormatGrouop = (tmp & 0x80U) >> 7U;
  1886.   pCSD->CopyFlag         = (tmp & 0x40U) >> 6U;
  1887.   pCSD->PermWrProtect    = (tmp & 0x20U) >> 5U;
  1888.   pCSD->TempWrProtect    = (tmp & 0x10U) >> 4U;
  1889.   pCSD->FileFormat       = (tmp & 0x0CU) >> 2U;
  1890.   pCSD->ECC              = (tmp & 0x03U);
  1891.  
  1892.   /* Byte 15 */
  1893.   tmp = (uint8_t)(hmmc->CSD[3U] & 0x000000FFU);
  1894.   pCSD->CSD_CRC   = (tmp & 0xFEU) >> 1U;
  1895.   pCSD->Reserved4 = 1U;
  1896.  
  1897.   return HAL_OK;
  1898. }
  1899.  
  1900. /**
  1901.   * @brief  Gets the MMC card info.
  1902.   * @param  hmmc: Pointer to MMC handle      
  1903.   * @param  pCardInfo: Pointer to the HAL_MMC_CardInfoTypeDef structure that
  1904.   *         will contain the MMC card status information
  1905.   * @retval HAL status
  1906.   */
  1907. HAL_StatusTypeDef HAL_MMC_GetCardInfo(MMC_HandleTypeDef *hmmc, HAL_MMC_CardInfoTypeDef *pCardInfo)
  1908. {
  1909.   pCardInfo->CardType     = (uint32_t)(hmmc->MmcCard.CardType);
  1910.   pCardInfo->Class        = (uint32_t)(hmmc->MmcCard.Class);
  1911.   pCardInfo->RelCardAdd   = (uint32_t)(hmmc->MmcCard.RelCardAdd);
  1912.   pCardInfo->BlockNbr     = (uint32_t)(hmmc->MmcCard.BlockNbr);
  1913.   pCardInfo->BlockSize    = (uint32_t)(hmmc->MmcCard.BlockSize);
  1914.   pCardInfo->LogBlockNbr  = (uint32_t)(hmmc->MmcCard.LogBlockNbr);
  1915.   pCardInfo->LogBlockSize = (uint32_t)(hmmc->MmcCard.LogBlockSize);
  1916.  
  1917.   return HAL_OK;
  1918. }
  1919.  
  1920. /**
  1921.   * @brief  Enables wide bus operation for the requested card if supported by
  1922.   *         card.
  1923.   * @param  hmmc: Pointer to MMC handle      
  1924.   * @param  WideMode: Specifies the MMC card wide bus mode
  1925.   *          This parameter can be one of the following values:
  1926.   *            @arg SDIO_BUS_WIDE_8B: 8-bit data transfer
  1927.   *            @arg SDIO_BUS_WIDE_4B: 4-bit data transfer
  1928.   *            @arg SDIO_BUS_WIDE_1B: 1-bit data transfer
  1929.   * @retval HAL status
  1930.   */
  1931. HAL_StatusTypeDef HAL_MMC_ConfigWideBusOperation(MMC_HandleTypeDef *hmmc, uint32_t WideMode)
  1932. {
  1933.   __IO uint32_t count = 0U;
  1934.   SDIO_InitTypeDef Init;
  1935.   uint32_t errorstate = HAL_MMC_ERROR_NONE;
  1936.   uint32_t response = 0U, busy = 0U;
  1937.  
  1938.   /* Check the parameters */
  1939.   assert_param(IS_SDIO_BUS_WIDE(WideMode));
  1940.  
  1941.   /* Chnage Satte */
  1942.   hmmc->State = HAL_MMC_STATE_BUSY;
  1943.  
  1944.   /* Update Clock for Bus mode update */
  1945.   Init.ClockEdge           = SDIO_CLOCK_EDGE_RISING;
  1946.   Init.ClockBypass         = SDIO_CLOCK_BYPASS_DISABLE;
  1947.   Init.ClockPowerSave      = SDIO_CLOCK_POWER_SAVE_DISABLE;
  1948.   Init.BusWide             = WideMode;
  1949.   Init.HardwareFlowControl = SDIO_HARDWARE_FLOW_CONTROL_DISABLE;
  1950.   Init.ClockDiv            = SDIO_INIT_CLK_DIV;
  1951.   /* Initialize SDIO*/
  1952.   SDIO_Init(hmmc->Instance, Init);
  1953.    
  1954.   if(WideMode == SDIO_BUS_WIDE_8B)
  1955.   {
  1956.     errorstate = SDMMC_CmdSwitch(hmmc->Instance, 0x03B70200U);
  1957.     if(errorstate != HAL_MMC_ERROR_NONE)
  1958.     {
  1959.       hmmc->ErrorCode |= errorstate;
  1960.     }
  1961.   }
  1962.   else if(WideMode == SDIO_BUS_WIDE_4B)
  1963.   {
  1964.     errorstate = SDMMC_CmdSwitch(hmmc->Instance, 0x03B70100U);
  1965.     if(errorstate != HAL_MMC_ERROR_NONE)
  1966.     {
  1967.       hmmc->ErrorCode |= errorstate;
  1968.     }
  1969.   }
  1970.   else if(WideMode == SDIO_BUS_WIDE_1B)
  1971.   {
  1972.     errorstate = SDMMC_CmdSwitch(hmmc->Instance, 0x03B70000U);
  1973.     if(errorstate != HAL_MMC_ERROR_NONE)
  1974.     {
  1975.       hmmc->ErrorCode |= errorstate;
  1976.     }
  1977.   }
  1978.   else
  1979.   {
  1980.     /* WideMode is not a valid argument*/
  1981.     hmmc->ErrorCode |= HAL_MMC_ERROR_PARAM;
  1982.   }
  1983.  
  1984.   /* Check for switch error and violation of the trial number of sending CMD 13 */
  1985.   while(busy == 0U)
  1986.   {
  1987.     if(count++ == SDMMC_MAX_TRIAL)
  1988.     {
  1989.       hmmc->State = HAL_MMC_STATE_READY;
  1990.       hmmc->ErrorCode |= HAL_MMC_ERROR_REQUEST_NOT_APPLICABLE;
  1991.       return HAL_ERROR;
  1992.     }
  1993.    
  1994.     /* While card is not ready for data and trial number for sending CMD13 is not exceeded */
  1995.     errorstate = SDMMC_CmdSendStatus(hmmc->Instance, (uint32_t)(((uint32_t)hmmc->MmcCard.RelCardAdd) << 16U));
  1996.     if(errorstate != HAL_MMC_ERROR_NONE)
  1997.     {
  1998.       hmmc->ErrorCode |= errorstate;
  1999.     }
  2000.    
  2001.     /* Get command response */
  2002.     response = SDIO_GetResponse(hmmc->Instance, SDIO_RESP1);
  2003.    
  2004.     /* Get operating voltage*/
  2005.     busy = (((response >> 7U) == 1U) ? 0U : 1U);
  2006.   }
  2007.      
  2008.   /* While card is not ready for data and trial number for sending CMD13 is not exceeded */
  2009.   count = SDMMC_DATATIMEOUT;
  2010.   while((response & 0x00000100U) == 0U)
  2011.   {
  2012.     if(count-- == 0U)
  2013.     {
  2014.       hmmc->State = HAL_MMC_STATE_READY;
  2015.       hmmc->ErrorCode |= HAL_MMC_ERROR_REQUEST_NOT_APPLICABLE;
  2016.       return HAL_ERROR;
  2017.     }
  2018.    
  2019.     /* While card is not ready for data and trial number for sending CMD13 is not exceeded */
  2020.     errorstate = SDMMC_CmdSendStatus(hmmc->Instance, (uint32_t)(((uint32_t)hmmc->MmcCard.RelCardAdd) << 16U));
  2021.     if(errorstate != HAL_MMC_ERROR_NONE)
  2022.     {
  2023.       hmmc->ErrorCode |= errorstate;
  2024.     }
  2025.    
  2026.     /* Get command response */
  2027.     response = SDIO_GetResponse(hmmc->Instance, SDIO_RESP1);
  2028.   }
  2029.  
  2030.   if(hmmc->ErrorCode != HAL_MMC_ERROR_NONE)
  2031.   {
  2032.     /* Clear all the static flags */
  2033.     __HAL_MMC_CLEAR_FLAG(hmmc, SDIO_STATIC_FLAGS);
  2034.     hmmc->State = HAL_MMC_STATE_READY;
  2035.     return HAL_ERROR;
  2036.   }
  2037.   else
  2038.   {
  2039.     /* Configure the SDIO peripheral */
  2040.     Init.ClockEdge           = hmmc->Init.ClockEdge;
  2041.     Init.ClockBypass         = hmmc->Init.ClockBypass;
  2042.     Init.ClockPowerSave      = hmmc->Init.ClockPowerSave;
  2043.     Init.BusWide             = WideMode;
  2044.     Init.HardwareFlowControl = hmmc->Init.HardwareFlowControl;
  2045.     Init.ClockDiv            = hmmc->Init.ClockDiv;
  2046.     SDIO_Init(hmmc->Instance, Init);
  2047.   }
  2048.  
  2049.   /* Change State */
  2050.   hmmc->State = HAL_MMC_STATE_READY;
  2051.  
  2052.   return HAL_OK;
  2053. }
  2054.  
  2055.  
  2056. /**
  2057.   * @brief  Gets the current mmc card data state.
  2058.   * @param  hmmc: pointer to MMC handle
  2059.   * @retval Card state
  2060.   */
  2061. HAL_MMC_CardStateTypeDef HAL_MMC_GetCardState(MMC_HandleTypeDef *hmmc)
  2062. {
  2063.   HAL_MMC_CardStateTypeDef cardstate =  HAL_MMC_CARD_TRANSFER;
  2064.   uint32_t errorstate = HAL_MMC_ERROR_NONE;
  2065.   uint32_t resp1 = 0U;
  2066.  
  2067.   errorstate = MMC_SendStatus(hmmc, &resp1);
  2068.   if(errorstate != HAL_OK)
  2069.   {
  2070.     hmmc->ErrorCode |= errorstate;
  2071.   }
  2072.  
  2073.   cardstate = (HAL_MMC_CardStateTypeDef)((resp1 >> 9U) & 0x0FU);
  2074.  
  2075.   return cardstate;
  2076. }
  2077.  
  2078. /**
  2079.   * @brief  Abort the current transfer and disable the MMC.
  2080.   * @param  hmmc: pointer to a MMC_HandleTypeDef structure that contains
  2081.   *                the configuration information for MMC module.
  2082.   * @retval HAL status
  2083.   */
  2084. HAL_StatusTypeDef HAL_MMC_Abort(MMC_HandleTypeDef *hmmc)
  2085. {
  2086.   HAL_MMC_CardStateTypeDef CardState;
  2087.  
  2088.   /* DIsable All interrupts */
  2089.   __HAL_MMC_DISABLE_IT(hmmc, SDIO_IT_DATAEND | SDIO_IT_DCRCFAIL | SDIO_IT_DTIMEOUT|\
  2090.                            SDIO_IT_TXUNDERR| SDIO_IT_RXOVERR);
  2091.  
  2092.   /* Clear All flags */
  2093.   __HAL_MMC_CLEAR_FLAG(hmmc, SDIO_STATIC_FLAGS);
  2094.  
  2095.   if((hmmc->hdmatx != NULL) || (hmmc->hdmarx != NULL))
  2096.   {
  2097.     /* Disable the MMC DMA request */
  2098.     hmmc->Instance->DCTRL &= (uint32_t)~((uint32_t)SDIO_DCTRL_DMAEN);
  2099.    
  2100.     /* Abort the MMC DMA Tx Stream */
  2101.     if(hmmc->hdmatx != NULL)
  2102.     {
  2103.       HAL_DMA_Abort(hmmc->hdmatx);
  2104.     }
  2105.     /* Abort the MMC DMA Rx Stream */
  2106.     if(hmmc->hdmarx != NULL)
  2107.     {
  2108.       HAL_DMA_Abort(hmmc->hdmarx);
  2109.     }
  2110.   }
  2111.  
  2112.   hmmc->State = HAL_MMC_STATE_READY;
  2113.   CardState = HAL_MMC_GetCardState(hmmc);
  2114.   if((CardState == HAL_MMC_CARD_RECEIVING) || (CardState == HAL_MMC_CARD_SENDING))
  2115.   {
  2116.     hmmc->ErrorCode = SDMMC_CmdStopTransfer(hmmc->Instance);
  2117.   }
  2118.   if(hmmc->ErrorCode != HAL_MMC_ERROR_NONE)
  2119.   {
  2120.     return HAL_ERROR;
  2121.   }
  2122.   return HAL_OK;
  2123. }
  2124.  
  2125. /**
  2126.   * @brief  Abort the current transfer and disable the MMC (IT mode).
  2127.   * @param  hmmc: pointer to a MMC_HandleTypeDef structure that contains
  2128.   *                the configuration information for MMC module.
  2129.   * @retval HAL status
  2130.   */
  2131. HAL_StatusTypeDef HAL_MMC_Abort_IT(MMC_HandleTypeDef *hmmc)
  2132. {
  2133.   HAL_MMC_CardStateTypeDef CardState;
  2134.    
  2135.   /* DIsable All interrupts */
  2136.   __HAL_MMC_DISABLE_IT(hmmc, SDIO_IT_DATAEND | SDIO_IT_DCRCFAIL | SDIO_IT_DTIMEOUT|\
  2137.                            SDIO_IT_TXUNDERR| SDIO_IT_RXOVERR);
  2138.  
  2139.   /* Clear All flags */
  2140.   __HAL_MMC_CLEAR_FLAG(hmmc, SDIO_STATIC_FLAGS);
  2141.  
  2142.   if((hmmc->hdmatx != NULL) || (hmmc->hdmarx != NULL))
  2143.   {
  2144.     /* Disable the MMC DMA request */
  2145.     hmmc->Instance->DCTRL &= (uint32_t)~((uint32_t)SDIO_DCTRL_DMAEN);
  2146.    
  2147.     /* Abort the MMC DMA Tx Stream */
  2148.     if(hmmc->hdmatx != NULL)
  2149.     {
  2150.       hmmc->hdmatx->XferAbortCallback =  MMC_DMATxAbort;
  2151.       if(HAL_DMA_Abort_IT(hmmc->hdmatx) != HAL_OK)
  2152.       {
  2153.         hmmc->hdmatx = NULL;
  2154.       }
  2155.     }
  2156.     /* Abort the MMC DMA Rx Stream */
  2157.     if(hmmc->hdmarx != NULL)
  2158.     {
  2159.       hmmc->hdmarx->XferAbortCallback =  MMC_DMARxAbort;
  2160.       if(HAL_DMA_Abort_IT(hmmc->hdmarx) != HAL_OK)
  2161.       {
  2162.         hmmc->hdmarx = NULL;
  2163.       }
  2164.     }
  2165.   }
  2166.  
  2167.   /* No transfer ongoing on both DMA channels*/
  2168.   if((hmmc->hdmatx == NULL) && (hmmc->hdmarx == NULL))
  2169.   {
  2170.     CardState = HAL_MMC_GetCardState(hmmc);
  2171.     hmmc->State = HAL_MMC_STATE_READY;
  2172.     if((CardState == HAL_MMC_CARD_RECEIVING) || (CardState == HAL_MMC_CARD_SENDING))
  2173.     {
  2174.       hmmc->ErrorCode = SDMMC_CmdStopTransfer(hmmc->Instance);
  2175.     }
  2176.     if(hmmc->ErrorCode != HAL_MMC_ERROR_NONE)
  2177.     {
  2178.       return HAL_ERROR;
  2179.     }
  2180.     else
  2181.     {
  2182.       HAL_MMC_AbortCallback(hmmc);
  2183.     }
  2184.   }
  2185.  
  2186.   return HAL_OK;
  2187. }
  2188.  
  2189. /**
  2190.   * @}
  2191.   */
  2192.  
  2193. /**
  2194.   * @}
  2195.   */
  2196.  
  2197. /* Private function ----------------------------------------------------------*/  
  2198. /** @addtogroup MMC_Private_Functions
  2199.   * @{
  2200.   */
  2201.  
  2202. /**
  2203.   * @brief  DMA MMC transmit process complete callback
  2204.   * @param  hdma: DMA handle
  2205.   * @retval None
  2206.   */
  2207. static void MMC_DMATransmitCplt(DMA_HandleTypeDef *hdma)    
  2208. {
  2209.   MMC_HandleTypeDef* hmmc = (MMC_HandleTypeDef* )(hdma->Parent);
  2210.  
  2211.   /* Enable DATAEND Interrupt */
  2212.   __HAL_MMC_ENABLE_IT(hmmc, (SDIO_IT_DATAEND));
  2213. }
  2214.  
  2215. /**
  2216.   * @brief  DMA MMC receive process complete callback
  2217.   * @param  hdma: DMA handle
  2218.   * @retval None
  2219.   */
  2220. static void MMC_DMAReceiveCplt(DMA_HandleTypeDef *hdma)  
  2221. {
  2222.   MMC_HandleTypeDef* hmmc = (MMC_HandleTypeDef* )(hdma->Parent);
  2223.   uint32_t errorstate = HAL_MMC_ERROR_NONE;
  2224.  
  2225.   /* Send stop command in multiblock write */
  2226.   if(hmmc->Context == (MMC_CONTEXT_READ_MULTIPLE_BLOCK | MMC_CONTEXT_DMA))
  2227.   {
  2228.     errorstate = SDMMC_CmdStopTransfer(hmmc->Instance);
  2229.     if(errorstate != HAL_MMC_ERROR_NONE)
  2230.     {
  2231.       hmmc->ErrorCode |= errorstate;
  2232.       HAL_MMC_ErrorCallback(hmmc);
  2233.     }
  2234.   }
  2235.  
  2236.   /* Disable the DMA transfer for transmit request by setting the DMAEN bit
  2237.   in the MMC DCTRL register */
  2238.   hmmc->Instance->DCTRL &= (uint32_t)~((uint32_t)SDIO_DCTRL_DMAEN);
  2239.  
  2240.   /* Clear all the static flags */
  2241.   __HAL_MMC_CLEAR_FLAG(hmmc, SDIO_STATIC_FLAGS);
  2242.  
  2243.   hmmc->State = HAL_MMC_STATE_READY;
  2244.  
  2245.   HAL_MMC_RxCpltCallback(hmmc);
  2246. }
  2247.  
  2248. /**
  2249.   * @brief  DMA MMC communication error callback
  2250.   * @param  hdma: DMA handle
  2251.   * @retval None
  2252.   */
  2253. static void MMC_DMAError(DMA_HandleTypeDef *hdma)  
  2254. {
  2255.   MMC_HandleTypeDef* hmmc = (MMC_HandleTypeDef* )(hdma->Parent);
  2256.   HAL_MMC_CardStateTypeDef CardState;
  2257.  
  2258.   if((hmmc->hdmarx->ErrorCode == HAL_DMA_ERROR_TE) || (hmmc->hdmatx->ErrorCode == HAL_DMA_ERROR_TE))
  2259.   {
  2260.     /* Clear All flags */
  2261.     __HAL_MMC_CLEAR_FLAG(hmmc, SDIO_STATIC_FLAGS);
  2262.    
  2263.     /* Disable All interrupts */
  2264.     __HAL_MMC_DISABLE_IT(hmmc, SDIO_IT_DATAEND | SDIO_IT_DCRCFAIL | SDIO_IT_DTIMEOUT|\
  2265.       SDIO_IT_TXUNDERR| SDIO_IT_RXOVERR);
  2266.    
  2267.     hmmc->ErrorCode |= HAL_MMC_ERROR_DMA;
  2268.     CardState = HAL_MMC_GetCardState(hmmc);
  2269.     if((CardState == HAL_MMC_CARD_RECEIVING) || (CardState == HAL_MMC_CARD_SENDING))
  2270.     {
  2271.       hmmc->ErrorCode |= SDMMC_CmdStopTransfer(hmmc->Instance);
  2272.     }
  2273.    
  2274.     hmmc->State= HAL_MMC_STATE_READY;
  2275.   }
  2276.  
  2277.   HAL_MMC_ErrorCallback(hmmc);
  2278. }
  2279.  
  2280. /**
  2281.   * @brief  DMA MMC Tx Abort callback
  2282.   * @param  hdma: DMA handle
  2283.   * @retval None
  2284.   */
  2285. static void MMC_DMATxAbort(DMA_HandleTypeDef *hdma)  
  2286. {
  2287.   MMC_HandleTypeDef* hmmc = (MMC_HandleTypeDef* )(hdma->Parent);
  2288.   HAL_MMC_CardStateTypeDef CardState;
  2289.  
  2290.   if(hmmc->hdmatx != NULL)
  2291.   {
  2292.     hmmc->hdmatx = NULL;
  2293.   }
  2294.  
  2295.   /* All DMA channels are aborted */
  2296.   if(hmmc->hdmarx == NULL)
  2297.   {
  2298.     CardState = HAL_MMC_GetCardState(hmmc);
  2299.     hmmc->ErrorCode = HAL_MMC_ERROR_NONE;
  2300.     hmmc->State = HAL_MMC_STATE_READY;
  2301.     if((CardState == HAL_MMC_CARD_RECEIVING) || (CardState == HAL_MMC_CARD_SENDING))
  2302.     {
  2303.       hmmc->ErrorCode |= SDMMC_CmdStopTransfer(hmmc->Instance);
  2304.      
  2305.       if(hmmc->ErrorCode != HAL_MMC_ERROR_NONE)
  2306.       {
  2307.         HAL_MMC_AbortCallback(hmmc);
  2308.       }
  2309.       else
  2310.       {
  2311.         HAL_MMC_ErrorCallback(hmmc);
  2312.       }
  2313.     }
  2314.   }
  2315. }
  2316.  
  2317. /**
  2318.   * @brief  DMA MMC Rx Abort callback
  2319.   * @param  hdma: DMA handle
  2320.   * @retval None
  2321.   */
  2322. static void MMC_DMARxAbort(DMA_HandleTypeDef *hdma)  
  2323. {
  2324.   MMC_HandleTypeDef* hmmc = (MMC_HandleTypeDef* )(hdma->Parent);
  2325.   HAL_MMC_CardStateTypeDef CardState;
  2326.  
  2327.   if(hmmc->hdmarx != NULL)
  2328.   {
  2329.     hmmc->hdmarx = NULL;
  2330.   }
  2331.  
  2332.   /* All DMA channels are aborted */
  2333.   if(hmmc->hdmatx == NULL)
  2334.   {
  2335.     CardState = HAL_MMC_GetCardState(hmmc);
  2336.     hmmc->ErrorCode = HAL_MMC_ERROR_NONE;
  2337.     hmmc->State = HAL_MMC_STATE_READY;
  2338.     if((CardState == HAL_MMC_CARD_RECEIVING) || (CardState == HAL_MMC_CARD_SENDING))
  2339.     {
  2340.       hmmc->ErrorCode |= SDMMC_CmdStopTransfer(hmmc->Instance);
  2341.      
  2342.       if(hmmc->ErrorCode != HAL_MMC_ERROR_NONE)
  2343.       {
  2344.         HAL_MMC_AbortCallback(hmmc);
  2345.       }
  2346.       else
  2347.       {
  2348.         HAL_MMC_ErrorCallback(hmmc);
  2349.       }
  2350.     }
  2351.   }
  2352. }
  2353.  
  2354.  
  2355. /**
  2356.   * @brief  Initializes the mmc card.
  2357.   * @param  hmmc: Pointer to MMC handle
  2358.   * @retval MMC Card error state
  2359.   */
  2360. static uint32_t MMC_InitCard(MMC_HandleTypeDef *hmmc)
  2361. {
  2362.   HAL_MMC_CardCSDTypeDef CSD;
  2363.   uint32_t errorstate = HAL_MMC_ERROR_NONE;
  2364.   uint16_t mmc_rca = 1;
  2365.  
  2366.   /* Check the power State */
  2367.   if(SDIO_GetPowerState(hmmc->Instance) == 0U)
  2368.   {
  2369.     /* Power off */
  2370.     return HAL_MMC_ERROR_REQUEST_NOT_APPLICABLE;
  2371.   }
  2372.  
  2373.   /* Send CMD2 ALL_SEND_CID */
  2374.   errorstate = SDMMC_CmdSendCID(hmmc->Instance);
  2375.   if(errorstate != HAL_MMC_ERROR_NONE)
  2376.   {
  2377.     return errorstate;
  2378.   }
  2379.   else
  2380.   {
  2381.     /* Get Card identification number data */
  2382.     hmmc->CID[0U] = SDIO_GetResponse(hmmc->Instance, SDIO_RESP1);
  2383.     hmmc->CID[1U] = SDIO_GetResponse(hmmc->Instance, SDIO_RESP2);
  2384.     hmmc->CID[2U] = SDIO_GetResponse(hmmc->Instance, SDIO_RESP3);
  2385.     hmmc->CID[3U] = SDIO_GetResponse(hmmc->Instance, SDIO_RESP4);
  2386.   }
  2387.  
  2388.   /* Send CMD3 SET_REL_ADDR with argument 0 */
  2389.   /* MMC Card publishes its RCA. */
  2390.   errorstate = SDMMC_CmdSetRelAdd(hmmc->Instance, &mmc_rca);
  2391.   if(errorstate != HAL_MMC_ERROR_NONE)
  2392.   {
  2393.     return errorstate;
  2394.   }
  2395.  
  2396.   /* Get the MMC card RCA */
  2397.   hmmc->MmcCard.RelCardAdd = mmc_rca;
  2398.  
  2399.   /* Send CMD9 SEND_CSD with argument as card's RCA */
  2400.   errorstate = SDMMC_CmdSendCSD(hmmc->Instance, (uint32_t)(hmmc->MmcCard.RelCardAdd << 16U));
  2401.   if(errorstate != HAL_MMC_ERROR_NONE)
  2402.   {
  2403.     return errorstate;
  2404.   }
  2405.   else
  2406.   {
  2407.     /* Get Card Specific Data */
  2408.     hmmc->CSD[0U] = SDIO_GetResponse(hmmc->Instance, SDIO_RESP1);
  2409.     hmmc->CSD[1U] = SDIO_GetResponse(hmmc->Instance, SDIO_RESP2);
  2410.     hmmc->CSD[2U] = SDIO_GetResponse(hmmc->Instance, SDIO_RESP3);
  2411.     hmmc->CSD[3U] = SDIO_GetResponse(hmmc->Instance, SDIO_RESP4);
  2412.   }
  2413.  
  2414.   /* Get the Card Class */
  2415.   hmmc->MmcCard.Class = (SDIO_GetResponse(hmmc->Instance, SDIO_RESP2) >> 20U);
  2416.  
  2417.   /* Get CSD parameters */
  2418.   HAL_MMC_GetCardCSD(hmmc, &CSD);
  2419.  
  2420.   /* Select the Card */
  2421.  errorstate = SDMMC_CmdSelDesel(hmmc->Instance, (uint32_t)(((uint32_t)hmmc->MmcCard.RelCardAdd) << 16U));
  2422.  if(errorstate != HAL_MMC_ERROR_NONE)
  2423.  {
  2424.    return errorstate;
  2425.  }
  2426.  
  2427.   /* Configure SDIO peripheral interface */
  2428.   SDIO_Init(hmmc->Instance, hmmc->Init);
  2429.  
  2430.   /* All cards are initialized */
  2431.   return HAL_MMC_ERROR_NONE;
  2432. }
  2433.  
  2434. /**
  2435.   * @brief  Enquires cards about their operating voltage and configures clock
  2436.   *         controls and stores MMC information that will be needed in future
  2437.   *         in the MMC handle.
  2438.   * @param  hmmc: Pointer to MMC handle
  2439.   * @retval error state
  2440.   */
  2441. static uint32_t MMC_PowerON(MMC_HandleTypeDef *hmmc)
  2442. {
  2443.   __IO uint32_t count = 0U;
  2444.   uint32_t response = 0U, validvoltage = 0U;
  2445.   uint32_t errorstate = HAL_MMC_ERROR_NONE;
  2446.  
  2447.   /* CMD0: GO_IDLE_STATE */
  2448.   errorstate = SDMMC_CmdGoIdleState(hmmc->Instance);
  2449.   if(errorstate != HAL_MMC_ERROR_NONE)
  2450.   {
  2451.     return errorstate;
  2452.   }
  2453.  
  2454.   while(validvoltage == 0U)
  2455.   {
  2456.     if(count++ == SDMMC_MAX_VOLT_TRIAL)
  2457.     {
  2458.       return HAL_MMC_ERROR_INVALID_VOLTRANGE;
  2459.     }
  2460.    
  2461.     /* SEND CMD1 APP_CMD with MMC_HIGH_VOLTAGE_RANGE(0xC0FF8000) as argument */
  2462.     errorstate = SDMMC_CmdOpCondition(hmmc->Instance, eMMC_HIGH_VOLTAGE_RANGE);
  2463.     if(errorstate != HAL_MMC_ERROR_NONE)
  2464.     {
  2465.       return HAL_MMC_ERROR_UNSUPPORTED_FEATURE;
  2466.     }
  2467.    
  2468.     /* Get command response */
  2469.     response = SDIO_GetResponse(hmmc->Instance, SDIO_RESP1);
  2470.    
  2471.     /* Get operating voltage*/
  2472.     validvoltage = (((response >> 31U) == 1U) ? 1U : 0U);
  2473.   }
  2474.  
  2475.   /* When power routine is finished and command returns valid voltage */
  2476.   if ((response & eMMC_HIGH_VOLTAGE_RANGE) == MMC_HIGH_VOLTAGE_RANGE)
  2477.   {
  2478.     /* When voltage range of the card is within 2.7V and 3.6V */
  2479.     hmmc->MmcCard.CardType = MMC_HIGH_VOLTAGE_CARD;
  2480.   }
  2481.   else
  2482.   {
  2483.     /* When voltage range of the card is within 1.65V and 1.95V or 2.7V and 3.6V */
  2484.     hmmc->MmcCard.CardType = MMC_DUAL_VOLTAGE_CARD;
  2485.   }
  2486.  
  2487.   return HAL_MMC_ERROR_NONE;
  2488. }
  2489.  
  2490. /**
  2491.   * @brief  Turns the SDIO output signals off.
  2492.   * @param  hmmc: Pointer to MMC handle
  2493.   * @retval HAL status
  2494.   */
  2495. static HAL_StatusTypeDef MMC_PowerOFF(MMC_HandleTypeDef *hmmc)
  2496. {
  2497.   /* Set Power State to OFF */
  2498.   SDIO_PowerState_OFF(hmmc->Instance);
  2499.  
  2500.   return HAL_OK;
  2501. }
  2502.  
  2503. /**
  2504.   * @brief  Returns the current card's status.
  2505.   * @param  hmmc: Pointer to MMC handle
  2506.   * @param  pCardStatus: pointer to the buffer that will contain the MMC card
  2507.   *         status (Card Status register)  
  2508.   * @retval error state
  2509.   */
  2510. static uint32_t MMC_SendStatus(MMC_HandleTypeDef *hmmc, uint32_t *pCardStatus)
  2511. {
  2512.   uint32_t errorstate = HAL_MMC_ERROR_NONE;
  2513.  
  2514.   if(pCardStatus == NULL)
  2515.   {
  2516.     return HAL_MMC_ERROR_PARAM;
  2517.   }
  2518.  
  2519.   /* Send Status command */
  2520.   errorstate = SDMMC_CmdSendStatus(hmmc->Instance, (uint32_t)(hmmc->MmcCard.RelCardAdd << 16U));
  2521.   if(errorstate != HAL_OK)
  2522.   {
  2523.     return errorstate;
  2524.   }
  2525.  
  2526.   /* Get MMC card status */
  2527.   *pCardStatus = SDIO_GetResponse(hmmc->Instance, SDIO_RESP1);
  2528.  
  2529.   return HAL_MMC_ERROR_NONE;
  2530. }
  2531.  
  2532. /**
  2533.   * @brief  Wrap up reading in non-blocking mode.
  2534.   * @param  hmmc: pointer to a MMC_HandleTypeDef structure that contains
  2535.   *              the configuration information.
  2536.   * @retval HAL status
  2537.   */
  2538. static HAL_StatusTypeDef MMC_Read_IT(MMC_HandleTypeDef *hmmc)
  2539. {
  2540.   uint32_t count = 0U;
  2541.   uint32_t* tmp;
  2542.  
  2543.   tmp = (uint32_t*)hmmc->pRxBuffPtr;
  2544.  
  2545.   /* Read data from SDMMC Rx FIFO */
  2546.   for(count = 0U; count < 8U; count++)
  2547.   {
  2548.     *(tmp + count) = SDIO_ReadFIFO(hmmc->Instance);
  2549.   }
  2550.  
  2551.   hmmc->pRxBuffPtr += 8U;
  2552.  
  2553.   return HAL_OK;
  2554. }
  2555.  
  2556. /**
  2557.   * @brief  Wrap up writing in non-blocking mode.
  2558.   * @param  hmmc: pointer to a MMC_HandleTypeDef structure that contains
  2559.   *              the configuration information.
  2560.   * @retval HAL status
  2561.   */
  2562. static HAL_StatusTypeDef MMC_Write_IT(MMC_HandleTypeDef *hmmc)
  2563. {
  2564.   uint32_t count = 0U;
  2565.   uint32_t* tmp;
  2566.  
  2567.   tmp = (uint32_t*)hmmc->pTxBuffPtr;
  2568.  
  2569.   /* Write data to SDMMC Tx FIFO */
  2570.   for(count = 0U; count < 8U; count++)
  2571.   {
  2572.     SDIO_WriteFIFO(hmmc->Instance, (tmp + count));
  2573.   }
  2574.  
  2575.   hmmc->pTxBuffPtr += 8U;
  2576.  
  2577.   return HAL_OK;
  2578. }
  2579.  
  2580. /**
  2581.   * @}
  2582.   */
  2583.  
  2584. #endif /* STM32F103xE || STM32F103xG */
  2585.  
  2586. #endif /* HAL_MMC_MODULE_ENABLED */
  2587.  
  2588. /**
  2589.   * @}
  2590.   */
  2591.  
  2592. /**
  2593.   * @}
  2594.   */
  2595.  
  2596. /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
  2597.