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  1. /**
  2.   ******************************************************************************
  3.   * @file    stm32f1xx_ll_sdmmc.c
  4.   * @author  MCD Application Team
  5.   * @brief   SDMMC Low Layer HAL module driver.
  6.   *    
  7.   *          This file provides firmware functions to manage the following
  8.   *          functionalities of the SDMMC peripheral:
  9.   *           + Initialization/de-initialization functions
  10.   *           + I/O operation functions
  11.   *           + Peripheral Control functions
  12.   *           + Peripheral State functions
  13.   *        
  14.   ******************************************************************************
  15.   * @attention
  16.   *
  17.   * Copyright (c) 2016 STMicroelectronics.
  18.   * All rights reserved.
  19.   *
  20.   * This software is licensed under terms that can be found in the LICENSE file
  21.   * in the root directory of this software component.
  22.   * If no LICENSE file comes with this software, it is provided AS-IS.
  23.   *
  24.   ******************************************************************************
  25.   @verbatim
  26.   ==============================================================================
  27.                        ##### SDMMC peripheral features #####
  28.   ==============================================================================        
  29.     [..] The SD/SDMMC MMC card host interface (SDMMC) provides an interface between the AHB
  30.          peripheral bus and MultiMedia cards (MMCs), SD memory cards, SDMMC cards and CE-ATA
  31.          devices.
  32.    
  33.     [..] The SDMMC features include the following:
  34.          (+) Full compliance with MultiMedia Card System Specification Version 4.2. Card support
  35.              for three different databus modes: 1-bit (default), 4-bit and 8-bit
  36.          (+) Full compatibility with previous versions of MultiMedia Cards (forward compatibility)
  37.          (+) Full compliance with SD Memory Card Specifications Version 2.0
  38.          (+) Full compliance with SD I/O Card Specification Version 2.0: card support for two
  39.              different data bus modes: 1-bit (default) and 4-bit
  40.          (+) Full support of the CE-ATA features (full compliance with CE-ATA digital protocol
  41.              Rev1.1)
  42.          (+) Data transfer up to 48 MHz for the 8 bit mode
  43.          (+) Data and command output enable signals to control external bidirectional drivers
  44.    
  45.                            ##### How to use this driver #####
  46.   ==============================================================================
  47.     [..]
  48.       This driver is a considered as a driver of service for external devices drivers
  49.       that interfaces with the SDMMC peripheral.
  50.       According to the device used (SD card/ MMC card / SDMMC card ...), a set of APIs
  51.       is used in the device's driver to perform SDMMC operations and functionalities.
  52.    
  53.       This driver is almost transparent for the final user, it is only used to implement other
  54.       functionalities of the external device.
  55.    
  56.     [..]
  57.       (+) The SDMMC clock (SDMMCCLK = 48 MHz) is coming from a specific output (MSI, PLLUSB1CLK,
  58.           PLLUSB2CLK). Before start working with SDMMC peripheral make sure that the
  59.           PLL is well configured.
  60.           The SDMMC peripheral uses two clock signals:
  61.           (++) SDMMC adapter clock (SDMMCCLK = 48 MHz)
  62.           (++) APB2 bus clock (PCLK2)
  63.        
  64.           -@@- PCLK2 and SDMMC_CK clock frequencies must respect the following condition:
  65.                Frequency(PCLK2) >= (3 / 8 x Frequency(SDMMC_CK))
  66.  
  67.       (+) Enable/Disable peripheral clock using RCC peripheral macros related to SDMMC
  68.           peripheral.
  69.  
  70.       (+) Enable the Power ON State using the SDIO_PowerState_ON()
  71.           function and disable it using the function SDIO_PowerState_OFF().
  72.                
  73.       (+) Enable/Disable the clock using the __SDIO_ENABLE()/__SDIO_DISABLE() macros.
  74.  
  75.       (+) Enable/Disable the peripheral interrupts using the macros __SDIO_ENABLE_IT()
  76.           and __SDIO_DISABLE_IT() if you need to use interrupt mode.
  77.  
  78.       (+) When using the DMA mode
  79.           (++) Configure the DMA in the MSP layer of the external device
  80.           (++) Active the needed channel Request
  81.           (++) Enable the DMA using __SDIO_DMA_ENABLE() macro or Disable it using the macro
  82.                __SDIO_DMA_DISABLE().
  83.  
  84.       (+) To control the CPSM (Command Path State Machine) and send
  85.           commands to the card use the SDIO_SendCommand(),
  86.           SDIO_GetCommandResponse() and SDIO_GetResponse() functions. First, user has
  87.           to fill the command structure (pointer to SDIO_CmdInitTypeDef) according
  88.           to the selected command to be sent.
  89.           The parameters that should be filled are:
  90.            (++) Command Argument
  91.            (++) Command Index
  92.            (++) Command Response type
  93.            (++) Command Wait
  94.            (++) CPSM Status (Enable or Disable).
  95.  
  96.           -@@- To check if the command is well received, read the SDIO_CMDRESP
  97.               register using the SDIO_GetCommandResponse().
  98.               The SDMMC responses registers (SDIO_RESP1 to SDIO_RESP2), use the
  99.               SDIO_GetResponse() function.
  100.  
  101.       (+) To control the DPSM (Data Path State Machine) and send/receive
  102.            data to/from the card use the SDIO_DataConfig(), SDIO_GetDataCounter(),
  103.           SDIO_ReadFIFO(), SDIO_WriteFIFO() and SDIO_GetFIFOCount() functions.
  104.  
  105.     *** Read Operations ***
  106.     =======================
  107.     [..]
  108.       (#) First, user has to fill the data structure (pointer to
  109.           SDIO_DataInitTypeDef) according to the selected data type to be received.
  110.           The parameters that should be filled are:
  111.            (++) Data TimeOut
  112.            (++) Data Length
  113.            (++) Data Block size
  114.            (++) Data Transfer direction: should be from card (To SDMMC)
  115.            (++) Data Transfer mode
  116.            (++) DPSM Status (Enable or Disable)
  117.                                      
  118.       (#) Configure the SDMMC resources to receive the data from the card
  119.           according to selected transfer mode (Refer to Step 8, 9 and 10).
  120.  
  121.       (#) Send the selected Read command (refer to step 11).
  122.                    
  123.       (#) Use the SDIO flags/interrupts to check the transfer status.
  124.  
  125.     *** Write Operations ***
  126.     ========================
  127.     [..]
  128.      (#) First, user has to fill the data structure (pointer to
  129.          SDIO_DataInitTypeDef) according to the selected data type to be received.
  130.          The parameters that should be filled are:
  131.           (++) Data TimeOut
  132.           (++) Data Length
  133.           (++) Data Block size
  134.           (++) Data Transfer direction:  should be to card (To CARD)
  135.           (++) Data Transfer mode
  136.           (++) DPSM Status (Enable or Disable)
  137.  
  138.      (#) Configure the SDMMC resources to send the data to the card according to
  139.          selected transfer mode.
  140.                      
  141.      (#) Send the selected Write command.
  142.                    
  143.      (#) Use the SDIO flags/interrupts to check the transfer status.
  144.        
  145.     *** Command management operations ***
  146.     =====================================
  147.     [..]
  148.      (#) The commands used for Read/Write/Erase operations are managed in
  149.          separate functions.
  150.          Each function allows to send the needed command with the related argument,
  151.          then check the response.
  152.          By the same approach, you could implement a command and check the response.
  153.  
  154.   @endverbatim
  155.   ******************************************************************************
  156.   */
  157.  
  158. /* Includes ------------------------------------------------------------------*/
  159. #include "stm32f1xx_hal.h"
  160.  
  161. #if defined(SDIO)
  162.  
  163. /** @addtogroup STM32F1xx_HAL_Driver
  164.   * @{
  165.   */
  166.  
  167. /** @defgroup SDMMC_LL SDMMC Low Layer
  168.   * @brief Low layer module for SD
  169.   * @{
  170.   */
  171.  
  172. #if defined(HAL_SD_MODULE_ENABLED) || defined(HAL_MMC_MODULE_ENABLED)
  173.  
  174. /* Private typedef -----------------------------------------------------------*/
  175. /* Private define ------------------------------------------------------------*/
  176. /* Private macro -------------------------------------------------------------*/
  177. /* Private variables ---------------------------------------------------------*/
  178. /* Private function prototypes -----------------------------------------------*/
  179. static uint32_t SDMMC_GetCmdError(SDIO_TypeDef *SDIOx);
  180.  
  181. /* Exported functions --------------------------------------------------------*/
  182.  
  183. /** @defgroup SDMMC_LL_Exported_Functions SDMMC Low Layer Exported Functions
  184.   * @{
  185.   */
  186.  
  187. /** @defgroup HAL_SDMMC_LL_Group1 Initialization de-initialization functions
  188.  *  @brief    Initialization and Configuration functions
  189.  *
  190. @verbatim    
  191.  ===============================================================================
  192.               ##### Initialization/de-initialization functions #####
  193.  ===============================================================================
  194.     [..]  This section provides functions allowing to:
  195.  
  196. @endverbatim
  197.   * @{
  198.   */
  199.  
  200. /**
  201.   * @brief  Initializes the SDMMC according to the specified
  202.   *         parameters in the SDMMC_InitTypeDef and create the associated handle.
  203.   * @param  SDIOx: Pointer to SDMMC register base
  204.   * @param  Init: SDMMC initialization structure  
  205.   * @retval HAL status
  206.   */
  207. HAL_StatusTypeDef SDIO_Init(SDIO_TypeDef *SDIOx, SDIO_InitTypeDef Init)
  208. {
  209.   uint32_t tmpreg = 0;
  210.  
  211.   /* Check the parameters */
  212.   assert_param(IS_SDIO_ALL_INSTANCE(SDIOx));
  213.   assert_param(IS_SDIO_CLOCK_EDGE(Init.ClockEdge));
  214.   assert_param(IS_SDIO_CLOCK_BYPASS(Init.ClockBypass));
  215.   assert_param(IS_SDIO_CLOCK_POWER_SAVE(Init.ClockPowerSave));
  216.   assert_param(IS_SDIO_BUS_WIDE(Init.BusWide));
  217.   assert_param(IS_SDIO_HARDWARE_FLOW_CONTROL(Init.HardwareFlowControl));
  218.   assert_param(IS_SDIO_CLKDIV(Init.ClockDiv));
  219.  
  220.   /* Set SDMMC configuration parameters */
  221.   tmpreg |= (Init.ClockEdge           |\
  222.              Init.ClockBypass         |\
  223.              Init.ClockPowerSave      |\
  224.              Init.BusWide             |\
  225.              Init.HardwareFlowControl |\
  226.              Init.ClockDiv
  227.              );
  228.  
  229.   /* Write to SDMMC CLKCR */
  230.   MODIFY_REG(SDIOx->CLKCR, CLKCR_CLEAR_MASK, tmpreg);  
  231.  
  232.   return HAL_OK;
  233. }
  234.  
  235.  
  236. /**
  237.   * @}
  238.   */
  239.  
  240. /** @defgroup HAL_SDMMC_LL_Group2 IO operation functions
  241.  *  @brief   Data transfers functions
  242.  *
  243. @verbatim  
  244.  ===============================================================================
  245.                       ##### I/O operation functions #####
  246.  ===============================================================================  
  247.     [..]
  248.     This subsection provides a set of functions allowing to manage the SDMMC data
  249.     transfers.
  250.  
  251. @endverbatim
  252.   * @{
  253.   */
  254.  
  255. /**
  256.   * @brief  Read data (word) from Rx FIFO in blocking mode (polling)
  257.   * @param  SDIOx: Pointer to SDMMC register base
  258.   * @retval HAL status
  259.   */
  260. uint32_t SDIO_ReadFIFO(SDIO_TypeDef *SDIOx)
  261. {
  262.   /* Read data from Rx FIFO */
  263.   return (SDIOx->FIFO);
  264. }
  265.  
  266. /**
  267.   * @brief  Write data (word) to Tx FIFO in blocking mode (polling)
  268.   * @param  SDIOx: Pointer to SDMMC register base
  269.   * @param  pWriteData: pointer to data to write
  270.   * @retval HAL status
  271.   */
  272. HAL_StatusTypeDef SDIO_WriteFIFO(SDIO_TypeDef *SDIOx, uint32_t *pWriteData)
  273. {
  274.   /* Write data to FIFO */
  275.   SDIOx->FIFO = *pWriteData;
  276.  
  277.   return HAL_OK;
  278. }
  279.  
  280. /**
  281.   * @}
  282.   */
  283.  
  284. /** @defgroup HAL_SDMMC_LL_Group3 Peripheral Control functions
  285.  *  @brief   management functions
  286.  *
  287. @verbatim  
  288.  ===============================================================================
  289.                       ##### Peripheral Control functions #####
  290.  ===============================================================================  
  291.     [..]
  292.     This subsection provides a set of functions allowing to control the SDMMC data
  293.     transfers.
  294.  
  295. @endverbatim
  296.   * @{
  297.   */
  298.  
  299. /**
  300.   * @brief  Set SDMMC Power state to ON.
  301.   * @param  SDIOx: Pointer to SDMMC register base
  302.   * @retval HAL status
  303.   */
  304. HAL_StatusTypeDef SDIO_PowerState_ON(SDIO_TypeDef *SDIOx)
  305. {  
  306.   /* Set power state to ON */
  307.   SDIOx->POWER = SDIO_POWER_PWRCTRL;
  308.  
  309.   return HAL_OK;
  310. }
  311.  
  312. /**
  313.   * @brief  Set SDMMC Power state to OFF.
  314.   * @param  SDIOx: Pointer to SDMMC register base
  315.   * @retval HAL status
  316.   */
  317. HAL_StatusTypeDef SDIO_PowerState_OFF(SDIO_TypeDef *SDIOx)
  318. {
  319.   /* Set power state to OFF */
  320.   SDIOx->POWER = (uint32_t)0x00000000;
  321.  
  322.   return HAL_OK;
  323. }
  324.  
  325. /**
  326.   * @brief  Get SDMMC Power state.
  327.   * @param  SDIOx: Pointer to SDMMC register base
  328.   * @retval Power status of the controller. The returned value can be one of the
  329.   *         following values:
  330.   *            - 0x00: Power OFF
  331.   *            - 0x02: Power UP
  332.   *            - 0x03: Power ON
  333.   */
  334. uint32_t SDIO_GetPowerState(SDIO_TypeDef *SDIOx)  
  335. {
  336.   return (SDIOx->POWER & SDIO_POWER_PWRCTRL);
  337. }
  338.  
  339. /**
  340.   * @brief  Configure the SDMMC command path according to the specified parameters in
  341.   *         SDIO_CmdInitTypeDef structure and send the command
  342.   * @param  SDIOx: Pointer to SDMMC register base
  343.   * @param  Command: pointer to a SDIO_CmdInitTypeDef structure that contains
  344.   *         the configuration information for the SDMMC command
  345.   * @retval HAL status
  346.   */
  347. HAL_StatusTypeDef SDIO_SendCommand(SDIO_TypeDef *SDIOx, SDIO_CmdInitTypeDef *Command)
  348. {
  349.   uint32_t tmpreg = 0;
  350.  
  351.   /* Check the parameters */
  352.   assert_param(IS_SDIO_CMD_INDEX(Command->CmdIndex));
  353.   assert_param(IS_SDIO_RESPONSE(Command->Response));
  354.   assert_param(IS_SDIO_WAIT(Command->WaitForInterrupt));
  355.   assert_param(IS_SDIO_CPSM(Command->CPSM));
  356.  
  357.   /* Set the SDMMC Argument value */
  358.   SDIOx->ARG = Command->Argument;
  359.  
  360.   /* Set SDMMC command parameters */
  361.   tmpreg |= (uint32_t)(Command->CmdIndex         |\
  362.                        Command->Response         |\
  363.                        Command->WaitForInterrupt |\
  364.                        Command->CPSM);
  365.  
  366.   /* Write to SDMMC CMD register */
  367.   MODIFY_REG(SDIOx->CMD, CMD_CLEAR_MASK, tmpreg);
  368.  
  369.   return HAL_OK;  
  370. }
  371.  
  372. /**
  373.   * @brief  Return the command index of last command for which response received
  374.   * @param  SDIOx: Pointer to SDMMC register base
  375.   * @retval Command index of the last command response received
  376.   */
  377. uint8_t SDIO_GetCommandResponse(SDIO_TypeDef *SDIOx)
  378. {
  379.   return (uint8_t)(SDIOx->RESPCMD);
  380. }
  381.  
  382.  
  383. /**
  384.   * @brief  Return the response received from the card for the last command
  385.   * @param  SDIOx: Pointer to SDMMC register base    
  386.   * @param  Response: Specifies the SDMMC response register.
  387.   *          This parameter can be one of the following values:
  388.   *            @arg SDIO_RESP1: Response Register 1
  389.   *            @arg SDIO_RESP2: Response Register 2
  390.   *            @arg SDIO_RESP3: Response Register 3
  391.   *            @arg SDIO_RESP4: Response Register 4  
  392.   * @retval The Corresponding response register value
  393.   */
  394. uint32_t SDIO_GetResponse(SDIO_TypeDef *SDIOx, uint32_t Response)
  395. {
  396.   uint32_t tmp;
  397.  
  398.   /* Check the parameters */
  399.   assert_param(IS_SDIO_RESP(Response));
  400.  
  401.   /* Get the response */
  402.   tmp = (uint32_t)(&(SDIOx->RESP1)) + Response;
  403.  
  404.   return (*(__IO uint32_t *) tmp);
  405. }  
  406.  
  407. /**
  408.   * @brief  Configure the SDMMC data path according to the specified
  409.   *         parameters in the SDIO_DataInitTypeDef.
  410.   * @param  SDIOx: Pointer to SDIO register base  
  411.   * @param  Data : pointer to a SDIO_DataInitTypeDef structure
  412.   *         that contains the configuration information for the SDMMC data.
  413.   * @retval HAL status
  414.   */
  415. HAL_StatusTypeDef SDIO_ConfigData(SDIO_TypeDef *SDIOx, SDIO_DataInitTypeDef* Data)
  416. {
  417.   uint32_t tmpreg = 0;
  418.  
  419.   /* Check the parameters */
  420.   assert_param(IS_SDIO_DATA_LENGTH(Data->DataLength));
  421.   assert_param(IS_SDIO_BLOCK_SIZE(Data->DataBlockSize));
  422.   assert_param(IS_SDIO_TRANSFER_DIR(Data->TransferDir));
  423.   assert_param(IS_SDIO_TRANSFER_MODE(Data->TransferMode));
  424.   assert_param(IS_SDIO_DPSM(Data->DPSM));
  425.  
  426.   /* Set the SDMMC Data TimeOut value */
  427.   SDIOx->DTIMER = Data->DataTimeOut;
  428.  
  429.   /* Set the SDMMC DataLength value */
  430.   SDIOx->DLEN = Data->DataLength;
  431.  
  432.   /* Set the SDMMC data configuration parameters */
  433.   tmpreg |= (uint32_t)(Data->DataBlockSize |\
  434.                        Data->TransferDir   |\
  435.                        Data->TransferMode  |\
  436.                        Data->DPSM);
  437.  
  438.   /* Write to SDMMC DCTRL */
  439.   MODIFY_REG(SDIOx->DCTRL, DCTRL_CLEAR_MASK, tmpreg);
  440.  
  441.   return HAL_OK;
  442.  
  443. }
  444.  
  445. /**
  446.   * @brief  Returns number of remaining data bytes to be transferred.
  447.   * @param  SDIOx: Pointer to SDIO register base
  448.   * @retval Number of remaining data bytes to be transferred
  449.   */
  450. uint32_t SDIO_GetDataCounter(SDIO_TypeDef *SDIOx)
  451. {
  452.   return (SDIOx->DCOUNT);
  453. }
  454.  
  455. /**
  456.   * @brief  Get the FIFO data
  457.   * @param  SDIOx: Pointer to SDIO register base
  458.   * @retval Data received
  459.   */
  460. uint32_t SDIO_GetFIFOCount(SDIO_TypeDef *SDIOx)
  461. {
  462.   return (SDIOx->FIFO);
  463. }
  464.  
  465. /**
  466.   * @brief  Sets one of the two options of inserting read wait interval.
  467.   * @param  SDIOx: Pointer to SDIO register base  
  468.   * @param  SDIO_ReadWaitMode: SDMMC Read Wait operation mode.
  469.   *          This parameter can be:
  470.   *            @arg SDIO_READ_WAIT_MODE_CLK: Read Wait control by stopping SDMMCCLK
  471.   *            @arg SDIO_READ_WAIT_MODE_DATA2: Read Wait control using SDMMC_DATA2
  472.   * @retval None
  473.   */
  474. HAL_StatusTypeDef SDIO_SetSDMMCReadWaitMode(SDIO_TypeDef *SDIOx, uint32_t SDIO_ReadWaitMode)
  475. {
  476.   /* Check the parameters */
  477.   assert_param(IS_SDIO_READWAIT_MODE(SDIO_ReadWaitMode));
  478.  
  479.   /* Set SDMMC read wait mode */
  480.   MODIFY_REG(SDIOx->DCTRL, SDIO_DCTRL_RWMOD, SDIO_ReadWaitMode);
  481.  
  482.   return HAL_OK;  
  483. }
  484.  
  485. /**
  486.   * @}
  487.   */
  488.  
  489.  
  490. /** @defgroup HAL_SDMMC_LL_Group4 Command management functions
  491.  *  @brief   Data transfers functions
  492.  *
  493. @verbatim  
  494.  ===============================================================================
  495.                    ##### Commands management functions #####
  496.  ===============================================================================  
  497.     [..]
  498.     This subsection provides a set of functions allowing to manage the needed commands.
  499.  
  500. @endverbatim
  501.   * @{
  502.   */
  503.  
  504. /**
  505.   * @brief  Send the Data Block Length command and check the response
  506.   * @param  SDIOx: Pointer to SDIO register base
  507.   * @retval HAL status
  508.   */
  509. uint32_t SDMMC_CmdBlockLength(SDIO_TypeDef *SDIOx, uint32_t BlockSize)
  510. {
  511.   SDIO_CmdInitTypeDef  sdmmc_cmdinit;
  512.   uint32_t errorstate;
  513.  
  514.   /* Set Block Size for Card */
  515.   sdmmc_cmdinit.Argument         = (uint32_t)BlockSize;
  516.   sdmmc_cmdinit.CmdIndex         = SDMMC_CMD_SET_BLOCKLEN;
  517.   sdmmc_cmdinit.Response         = SDIO_RESPONSE_SHORT;
  518.   sdmmc_cmdinit.WaitForInterrupt = SDIO_WAIT_NO;
  519.   sdmmc_cmdinit.CPSM             = SDIO_CPSM_ENABLE;
  520.   (void)SDIO_SendCommand(SDIOx, &sdmmc_cmdinit);
  521.  
  522.   /* Check for error conditions */
  523.   errorstate = SDMMC_GetCmdResp1(SDIOx, SDMMC_CMD_SET_BLOCKLEN, SDIO_CMDTIMEOUT);
  524.  
  525.   return errorstate;
  526. }
  527.  
  528. /**
  529.   * @brief  Send the Read Single Block command and check the response
  530.   * @param  SDIOx: Pointer to SDIO register base
  531.   * @retval HAL status
  532.   */
  533. uint32_t SDMMC_CmdReadSingleBlock(SDIO_TypeDef *SDIOx, uint32_t ReadAdd)
  534. {
  535.   SDIO_CmdInitTypeDef  sdmmc_cmdinit;
  536.   uint32_t errorstate;
  537.  
  538.   /* Set Block Size for Card */
  539.   sdmmc_cmdinit.Argument         = (uint32_t)ReadAdd;
  540.   sdmmc_cmdinit.CmdIndex         = SDMMC_CMD_READ_SINGLE_BLOCK;
  541.   sdmmc_cmdinit.Response         = SDIO_RESPONSE_SHORT;
  542.   sdmmc_cmdinit.WaitForInterrupt = SDIO_WAIT_NO;
  543.   sdmmc_cmdinit.CPSM             = SDIO_CPSM_ENABLE;
  544.   (void)SDIO_SendCommand(SDIOx, &sdmmc_cmdinit);
  545.  
  546.   /* Check for error conditions */
  547.   errorstate = SDMMC_GetCmdResp1(SDIOx, SDMMC_CMD_READ_SINGLE_BLOCK, SDIO_CMDTIMEOUT);
  548.  
  549.   return errorstate;
  550. }
  551.  
  552. /**
  553.   * @brief  Send the Read Multi Block command and check the response
  554.   * @param  SDIOx: Pointer to SDIO register base
  555.   * @retval HAL status
  556.   */
  557. uint32_t SDMMC_CmdReadMultiBlock(SDIO_TypeDef *SDIOx, uint32_t ReadAdd)
  558. {
  559.   SDIO_CmdInitTypeDef  sdmmc_cmdinit;
  560.   uint32_t errorstate;
  561.  
  562.   /* Set Block Size for Card */
  563.   sdmmc_cmdinit.Argument         = (uint32_t)ReadAdd;
  564.   sdmmc_cmdinit.CmdIndex         = SDMMC_CMD_READ_MULT_BLOCK;
  565.   sdmmc_cmdinit.Response         = SDIO_RESPONSE_SHORT;
  566.   sdmmc_cmdinit.WaitForInterrupt = SDIO_WAIT_NO;
  567.   sdmmc_cmdinit.CPSM             = SDIO_CPSM_ENABLE;
  568.   (void)SDIO_SendCommand(SDIOx, &sdmmc_cmdinit);
  569.  
  570.   /* Check for error conditions */
  571.   errorstate = SDMMC_GetCmdResp1(SDIOx, SDMMC_CMD_READ_MULT_BLOCK, SDIO_CMDTIMEOUT);
  572.  
  573.   return errorstate;
  574. }
  575.  
  576. /**
  577.   * @brief  Send the Write Single Block command and check the response
  578.   * @param  SDIOx: Pointer to SDIO register base
  579.   * @retval HAL status
  580.   */
  581. uint32_t SDMMC_CmdWriteSingleBlock(SDIO_TypeDef *SDIOx, uint32_t WriteAdd)
  582. {
  583.   SDIO_CmdInitTypeDef  sdmmc_cmdinit;
  584.   uint32_t errorstate;
  585.  
  586.   /* Set Block Size for Card */
  587.   sdmmc_cmdinit.Argument         = (uint32_t)WriteAdd;
  588.   sdmmc_cmdinit.CmdIndex         = SDMMC_CMD_WRITE_SINGLE_BLOCK;
  589.   sdmmc_cmdinit.Response         = SDIO_RESPONSE_SHORT;
  590.   sdmmc_cmdinit.WaitForInterrupt = SDIO_WAIT_NO;
  591.   sdmmc_cmdinit.CPSM             = SDIO_CPSM_ENABLE;
  592.   (void)SDIO_SendCommand(SDIOx, &sdmmc_cmdinit);
  593.  
  594.   /* Check for error conditions */
  595.   errorstate = SDMMC_GetCmdResp1(SDIOx, SDMMC_CMD_WRITE_SINGLE_BLOCK, SDIO_CMDTIMEOUT);
  596.  
  597.   return errorstate;
  598. }
  599.  
  600. /**
  601.   * @brief  Send the Write Multi Block command and check the response
  602.   * @param  SDIOx: Pointer to SDIO register base
  603.   * @retval HAL status
  604.   */
  605. uint32_t SDMMC_CmdWriteMultiBlock(SDIO_TypeDef *SDIOx, uint32_t WriteAdd)
  606. {
  607.   SDIO_CmdInitTypeDef  sdmmc_cmdinit;
  608.   uint32_t errorstate;
  609.  
  610.   /* Set Block Size for Card */
  611.   sdmmc_cmdinit.Argument         = (uint32_t)WriteAdd;
  612.   sdmmc_cmdinit.CmdIndex         = SDMMC_CMD_WRITE_MULT_BLOCK;
  613.   sdmmc_cmdinit.Response         = SDIO_RESPONSE_SHORT;
  614.   sdmmc_cmdinit.WaitForInterrupt = SDIO_WAIT_NO;
  615.   sdmmc_cmdinit.CPSM             = SDIO_CPSM_ENABLE;
  616.   (void)SDIO_SendCommand(SDIOx, &sdmmc_cmdinit);
  617.  
  618.   /* Check for error conditions */
  619.   errorstate = SDMMC_GetCmdResp1(SDIOx, SDMMC_CMD_WRITE_MULT_BLOCK, SDIO_CMDTIMEOUT);
  620.  
  621.   return errorstate;
  622. }
  623.  
  624. /**
  625.   * @brief  Send the Start Address Erase command for SD and check the response
  626.   * @param  SDIOx: Pointer to SDIO register base
  627.   * @retval HAL status
  628.   */
  629. uint32_t SDMMC_CmdSDEraseStartAdd(SDIO_TypeDef *SDIOx, uint32_t StartAdd)
  630. {
  631.   SDIO_CmdInitTypeDef  sdmmc_cmdinit;
  632.   uint32_t errorstate;
  633.  
  634.   /* Set Block Size for Card */
  635.   sdmmc_cmdinit.Argument         = (uint32_t)StartAdd;
  636.   sdmmc_cmdinit.CmdIndex         = SDMMC_CMD_SD_ERASE_GRP_START;
  637.   sdmmc_cmdinit.Response         = SDIO_RESPONSE_SHORT;
  638.   sdmmc_cmdinit.WaitForInterrupt = SDIO_WAIT_NO;
  639.   sdmmc_cmdinit.CPSM             = SDIO_CPSM_ENABLE;
  640.   (void)SDIO_SendCommand(SDIOx, &sdmmc_cmdinit);
  641.  
  642.   /* Check for error conditions */
  643.   errorstate = SDMMC_GetCmdResp1(SDIOx, SDMMC_CMD_SD_ERASE_GRP_START, SDIO_CMDTIMEOUT);
  644.  
  645.   return errorstate;
  646. }
  647.  
  648. /**
  649.   * @brief  Send the End Address Erase command for SD and check the response
  650.   * @param  SDIOx: Pointer to SDIO register base
  651.   * @retval HAL status
  652.   */
  653. uint32_t SDMMC_CmdSDEraseEndAdd(SDIO_TypeDef *SDIOx, uint32_t EndAdd)
  654. {
  655.   SDIO_CmdInitTypeDef  sdmmc_cmdinit;
  656.   uint32_t errorstate;
  657.  
  658.   /* Set Block Size for Card */
  659.   sdmmc_cmdinit.Argument         = (uint32_t)EndAdd;
  660.   sdmmc_cmdinit.CmdIndex         = SDMMC_CMD_SD_ERASE_GRP_END;
  661.   sdmmc_cmdinit.Response         = SDIO_RESPONSE_SHORT;
  662.   sdmmc_cmdinit.WaitForInterrupt = SDIO_WAIT_NO;
  663.   sdmmc_cmdinit.CPSM             = SDIO_CPSM_ENABLE;
  664.   (void)SDIO_SendCommand(SDIOx, &sdmmc_cmdinit);
  665.  
  666.   /* Check for error conditions */
  667.   errorstate = SDMMC_GetCmdResp1(SDIOx, SDMMC_CMD_SD_ERASE_GRP_END, SDIO_CMDTIMEOUT);
  668.  
  669.   return errorstate;
  670. }
  671.  
  672. /**
  673.   * @brief  Send the Start Address Erase command and check the response
  674.   * @param  SDIOx: Pointer to SDIO register base
  675.   * @retval HAL status
  676.   */
  677. uint32_t SDMMC_CmdEraseStartAdd(SDIO_TypeDef *SDIOx, uint32_t StartAdd)
  678. {
  679.   SDIO_CmdInitTypeDef  sdmmc_cmdinit;
  680.   uint32_t errorstate;
  681.  
  682.   /* Set Block Size for Card */
  683.   sdmmc_cmdinit.Argument         = (uint32_t)StartAdd;
  684.   sdmmc_cmdinit.CmdIndex         = SDMMC_CMD_ERASE_GRP_START;
  685.   sdmmc_cmdinit.Response         = SDIO_RESPONSE_SHORT;
  686.   sdmmc_cmdinit.WaitForInterrupt = SDIO_WAIT_NO;
  687.   sdmmc_cmdinit.CPSM             = SDIO_CPSM_ENABLE;
  688.   (void)SDIO_SendCommand(SDIOx, &sdmmc_cmdinit);
  689.  
  690.   /* Check for error conditions */
  691.   errorstate = SDMMC_GetCmdResp1(SDIOx, SDMMC_CMD_ERASE_GRP_START, SDIO_CMDTIMEOUT);
  692.  
  693.   return errorstate;
  694. }
  695.  
  696. /**
  697.   * @brief  Send the End Address Erase command and check the response
  698.   * @param  SDIOx: Pointer to SDIO register base
  699.   * @retval HAL status
  700.   */
  701. uint32_t SDMMC_CmdEraseEndAdd(SDIO_TypeDef *SDIOx, uint32_t EndAdd)
  702. {
  703.   SDIO_CmdInitTypeDef  sdmmc_cmdinit;
  704.   uint32_t errorstate;
  705.  
  706.   /* Set Block Size for Card */
  707.   sdmmc_cmdinit.Argument         = (uint32_t)EndAdd;
  708.   sdmmc_cmdinit.CmdIndex         = SDMMC_CMD_ERASE_GRP_END;
  709.   sdmmc_cmdinit.Response         = SDIO_RESPONSE_SHORT;
  710.   sdmmc_cmdinit.WaitForInterrupt = SDIO_WAIT_NO;
  711.   sdmmc_cmdinit.CPSM             = SDIO_CPSM_ENABLE;
  712.   (void)SDIO_SendCommand(SDIOx, &sdmmc_cmdinit);
  713.  
  714.   /* Check for error conditions */
  715.   errorstate = SDMMC_GetCmdResp1(SDIOx, SDMMC_CMD_ERASE_GRP_END, SDIO_CMDTIMEOUT);
  716.  
  717.   return errorstate;
  718. }
  719.  
  720. /**
  721.   * @brief  Send the Erase command and check the response
  722.   * @param  SDIOx: Pointer to SDIO register base
  723.   * @retval HAL status
  724.   */
  725. uint32_t SDMMC_CmdErase(SDIO_TypeDef *SDIOx)
  726. {
  727.   SDIO_CmdInitTypeDef  sdmmc_cmdinit;
  728.   uint32_t errorstate;
  729.  
  730.   /* Set Block Size for Card */
  731.   sdmmc_cmdinit.Argument         = 0U;
  732.   sdmmc_cmdinit.CmdIndex         = SDMMC_CMD_ERASE;
  733.   sdmmc_cmdinit.Response         = SDIO_RESPONSE_SHORT;
  734.   sdmmc_cmdinit.WaitForInterrupt = SDIO_WAIT_NO;
  735.   sdmmc_cmdinit.CPSM             = SDIO_CPSM_ENABLE;
  736.   (void)SDIO_SendCommand(SDIOx, &sdmmc_cmdinit);
  737.  
  738.   /* Check for error conditions */
  739.   errorstate = SDMMC_GetCmdResp1(SDIOx, SDMMC_CMD_ERASE, SDIO_MAXERASETIMEOUT);
  740.  
  741.   return errorstate;
  742. }
  743.  
  744. /**
  745.   * @brief  Send the Stop Transfer command and check the response.
  746.   * @param  SDIOx: Pointer to SDIO register base
  747.   * @retval HAL status
  748.   */
  749. uint32_t SDMMC_CmdStopTransfer(SDIO_TypeDef *SDIOx)
  750. {
  751.   SDIO_CmdInitTypeDef  sdmmc_cmdinit;
  752.   uint32_t errorstate;
  753.  
  754.   /* Send CMD12 STOP_TRANSMISSION  */
  755.   sdmmc_cmdinit.Argument         = 0U;
  756.   sdmmc_cmdinit.CmdIndex         = SDMMC_CMD_STOP_TRANSMISSION;
  757.   sdmmc_cmdinit.Response         = SDIO_RESPONSE_SHORT;
  758.   sdmmc_cmdinit.WaitForInterrupt = SDIO_WAIT_NO;
  759.   sdmmc_cmdinit.CPSM             = SDIO_CPSM_ENABLE;
  760.   (void)SDIO_SendCommand(SDIOx, &sdmmc_cmdinit);
  761.  
  762.   /* Check for error conditions */
  763.   errorstate = SDMMC_GetCmdResp1(SDIOx, SDMMC_CMD_STOP_TRANSMISSION, SDIO_STOPTRANSFERTIMEOUT);
  764.  
  765.   return errorstate;
  766. }
  767.  
  768. /**
  769.   * @brief  Send the Select Deselect command and check the response.
  770.   * @param  SDIOx: Pointer to SDIO register base
  771.   * @param  addr: Address of the card to be selected  
  772.   * @retval HAL status
  773.   */
  774. uint32_t SDMMC_CmdSelDesel(SDIO_TypeDef *SDIOx, uint64_t Addr)
  775. {
  776.   SDIO_CmdInitTypeDef  sdmmc_cmdinit;
  777.   uint32_t errorstate;
  778.  
  779.   /* Send CMD7 SDMMC_SEL_DESEL_CARD */
  780.   sdmmc_cmdinit.Argument         = (uint32_t)Addr;
  781.   sdmmc_cmdinit.CmdIndex         = SDMMC_CMD_SEL_DESEL_CARD;
  782.   sdmmc_cmdinit.Response         = SDIO_RESPONSE_SHORT;
  783.   sdmmc_cmdinit.WaitForInterrupt = SDIO_WAIT_NO;
  784.   sdmmc_cmdinit.CPSM             = SDIO_CPSM_ENABLE;
  785.   (void)SDIO_SendCommand(SDIOx, &sdmmc_cmdinit);
  786.  
  787.   /* Check for error conditions */
  788.   errorstate = SDMMC_GetCmdResp1(SDIOx, SDMMC_CMD_SEL_DESEL_CARD, SDIO_CMDTIMEOUT);
  789.  
  790.   return errorstate;
  791. }
  792.  
  793. /**
  794.   * @brief  Send the Go Idle State command and check the response.
  795.   * @param  SDIOx: Pointer to SDIO register base
  796.   * @retval HAL status
  797.   */
  798. uint32_t SDMMC_CmdGoIdleState(SDIO_TypeDef *SDIOx)
  799. {
  800.   SDIO_CmdInitTypeDef  sdmmc_cmdinit;
  801.   uint32_t errorstate;
  802.  
  803.   sdmmc_cmdinit.Argument         = 0U;
  804.   sdmmc_cmdinit.CmdIndex         = SDMMC_CMD_GO_IDLE_STATE;
  805.   sdmmc_cmdinit.Response         = SDIO_RESPONSE_NO;
  806.   sdmmc_cmdinit.WaitForInterrupt = SDIO_WAIT_NO;
  807.   sdmmc_cmdinit.CPSM             = SDIO_CPSM_ENABLE;
  808.   (void)SDIO_SendCommand(SDIOx, &sdmmc_cmdinit);
  809.  
  810.   /* Check for error conditions */
  811.   errorstate = SDMMC_GetCmdError(SDIOx);
  812.  
  813.   return errorstate;
  814. }
  815.  
  816. /**
  817.   * @brief  Send the Operating Condition command and check the response.
  818.   * @param  SDIOx: Pointer to SDIO register base
  819.   * @retval HAL status
  820.   */
  821. uint32_t SDMMC_CmdOperCond(SDIO_TypeDef *SDIOx)
  822. {
  823.   SDIO_CmdInitTypeDef  sdmmc_cmdinit;
  824.   uint32_t errorstate;
  825.  
  826.   /* Send CMD8 to verify SD card interface operating condition */
  827.   /* Argument: - [31:12]: Reserved (shall be set to '0')
  828.   - [11:8]: Supply Voltage (VHS) 0x1 (Range: 2.7-3.6 V)
  829.   - [7:0]: Check Pattern (recommended 0xAA) */
  830.   /* CMD Response: R7 */
  831.   sdmmc_cmdinit.Argument         = SDMMC_CHECK_PATTERN;
  832.   sdmmc_cmdinit.CmdIndex         = SDMMC_CMD_HS_SEND_EXT_CSD;
  833.   sdmmc_cmdinit.Response         = SDIO_RESPONSE_SHORT;
  834.   sdmmc_cmdinit.WaitForInterrupt = SDIO_WAIT_NO;
  835.   sdmmc_cmdinit.CPSM             = SDIO_CPSM_ENABLE;
  836.   (void)SDIO_SendCommand(SDIOx, &sdmmc_cmdinit);
  837.  
  838.   /* Check for error conditions */
  839.   errorstate = SDMMC_GetCmdResp7(SDIOx);
  840.  
  841.   return errorstate;
  842. }
  843.  
  844. /**
  845.   * @brief  Send the Application command to verify that that the next command
  846.   *         is an application specific com-mand rather than a standard command
  847.   *         and check the response.
  848.   * @param  SDIOx: Pointer to SDIO register base
  849.   * @param  Argument: Command Argument
  850.   * @retval HAL status
  851.   */
  852. uint32_t SDMMC_CmdAppCommand(SDIO_TypeDef *SDIOx, uint32_t Argument)
  853. {
  854.   SDIO_CmdInitTypeDef  sdmmc_cmdinit;
  855.   uint32_t errorstate;
  856.  
  857.   sdmmc_cmdinit.Argument         = (uint32_t)Argument;
  858.   sdmmc_cmdinit.CmdIndex         = SDMMC_CMD_APP_CMD;
  859.   sdmmc_cmdinit.Response         = SDIO_RESPONSE_SHORT;
  860.   sdmmc_cmdinit.WaitForInterrupt = SDIO_WAIT_NO;
  861.   sdmmc_cmdinit.CPSM             = SDIO_CPSM_ENABLE;
  862.   (void)SDIO_SendCommand(SDIOx, &sdmmc_cmdinit);
  863.  
  864.   /* Check for error conditions */
  865.   /* If there is a HAL_ERROR, it is a MMC card, else
  866.   it is a SD card: SD card 2.0 (voltage range mismatch)
  867.      or SD card 1.x */
  868.   errorstate = SDMMC_GetCmdResp1(SDIOx, SDMMC_CMD_APP_CMD, SDIO_CMDTIMEOUT);
  869.  
  870.   return errorstate;
  871. }
  872.  
  873. /**
  874.   * @brief  Send the command asking the accessed card to send its operating
  875.   *         condition register (OCR)
  876.   * @param  SDIOx: Pointer to SDIO register base
  877.   * @param  Argument: Command Argument
  878.   * @retval HAL status
  879.   */
  880. uint32_t SDMMC_CmdAppOperCommand(SDIO_TypeDef *SDIOx, uint32_t Argument)
  881. {
  882.   SDIO_CmdInitTypeDef  sdmmc_cmdinit;
  883.   uint32_t errorstate;
  884.  
  885.   sdmmc_cmdinit.Argument         = SDMMC_VOLTAGE_WINDOW_SD | Argument;
  886.   sdmmc_cmdinit.CmdIndex         = SDMMC_CMD_SD_APP_OP_COND;
  887.   sdmmc_cmdinit.Response         = SDIO_RESPONSE_SHORT;
  888.   sdmmc_cmdinit.WaitForInterrupt = SDIO_WAIT_NO;
  889.   sdmmc_cmdinit.CPSM             = SDIO_CPSM_ENABLE;
  890.   (void)SDIO_SendCommand(SDIOx, &sdmmc_cmdinit);
  891.  
  892.   /* Check for error conditions */
  893.   errorstate = SDMMC_GetCmdResp3(SDIOx);
  894.  
  895.   return errorstate;
  896. }
  897.  
  898. /**
  899.   * @brief  Send the Bus Width command and check the response.
  900.   * @param  SDIOx: Pointer to SDIO register base
  901.   * @param  BusWidth: BusWidth
  902.   * @retval HAL status
  903.   */
  904. uint32_t SDMMC_CmdBusWidth(SDIO_TypeDef *SDIOx, uint32_t BusWidth)
  905. {
  906.   SDIO_CmdInitTypeDef  sdmmc_cmdinit;
  907.   uint32_t errorstate;
  908.  
  909.   sdmmc_cmdinit.Argument         = (uint32_t)BusWidth;
  910.   sdmmc_cmdinit.CmdIndex         = SDMMC_CMD_APP_SD_SET_BUSWIDTH;
  911.   sdmmc_cmdinit.Response         = SDIO_RESPONSE_SHORT;
  912.   sdmmc_cmdinit.WaitForInterrupt = SDIO_WAIT_NO;
  913.   sdmmc_cmdinit.CPSM             = SDIO_CPSM_ENABLE;
  914.   (void)SDIO_SendCommand(SDIOx, &sdmmc_cmdinit);
  915.  
  916.   /* Check for error conditions */
  917.   errorstate = SDMMC_GetCmdResp1(SDIOx, SDMMC_CMD_APP_SD_SET_BUSWIDTH, SDIO_CMDTIMEOUT);
  918.  
  919.   return errorstate;
  920. }
  921.  
  922. /**
  923.   * @brief  Send the Send SCR command and check the response.
  924.   * @param  SDIOx: Pointer to SDIO register base
  925.   * @retval HAL status
  926.   */
  927. uint32_t SDMMC_CmdSendSCR(SDIO_TypeDef *SDIOx)
  928. {
  929.   SDIO_CmdInitTypeDef  sdmmc_cmdinit;
  930.   uint32_t errorstate;
  931.  
  932.   /* Send CMD51 SD_APP_SEND_SCR */
  933.   sdmmc_cmdinit.Argument         = 0U;
  934.   sdmmc_cmdinit.CmdIndex         = SDMMC_CMD_SD_APP_SEND_SCR;
  935.   sdmmc_cmdinit.Response         = SDIO_RESPONSE_SHORT;
  936.   sdmmc_cmdinit.WaitForInterrupt = SDIO_WAIT_NO;
  937.   sdmmc_cmdinit.CPSM             = SDIO_CPSM_ENABLE;
  938.   (void)SDIO_SendCommand(SDIOx, &sdmmc_cmdinit);
  939.  
  940.   /* Check for error conditions */
  941.   errorstate = SDMMC_GetCmdResp1(SDIOx, SDMMC_CMD_SD_APP_SEND_SCR, SDIO_CMDTIMEOUT);
  942.  
  943.   return errorstate;
  944. }
  945.  
  946. /**
  947.   * @brief  Send the Send CID command and check the response.
  948.   * @param  SDIOx: Pointer to SDIO register base
  949.   * @retval HAL status
  950.   */
  951. uint32_t SDMMC_CmdSendCID(SDIO_TypeDef *SDIOx)
  952. {
  953.   SDIO_CmdInitTypeDef  sdmmc_cmdinit;
  954.   uint32_t errorstate;
  955.  
  956.   /* Send CMD2 ALL_SEND_CID */
  957.   sdmmc_cmdinit.Argument         = 0U;
  958.   sdmmc_cmdinit.CmdIndex         = SDMMC_CMD_ALL_SEND_CID;
  959.   sdmmc_cmdinit.Response         = SDIO_RESPONSE_LONG;
  960.   sdmmc_cmdinit.WaitForInterrupt = SDIO_WAIT_NO;
  961.   sdmmc_cmdinit.CPSM             = SDIO_CPSM_ENABLE;
  962.   (void)SDIO_SendCommand(SDIOx, &sdmmc_cmdinit);
  963.  
  964.   /* Check for error conditions */
  965.   errorstate = SDMMC_GetCmdResp2(SDIOx);
  966.  
  967.   return errorstate;
  968. }
  969.  
  970. /**
  971.   * @brief  Send the Send CSD command and check the response.
  972.   * @param  SDIOx: Pointer to SDIO register base
  973.   * @param  Argument: Command Argument
  974.   * @retval HAL status
  975.   */
  976. uint32_t SDMMC_CmdSendCSD(SDIO_TypeDef *SDIOx, uint32_t Argument)
  977. {
  978.   SDIO_CmdInitTypeDef  sdmmc_cmdinit;
  979.   uint32_t errorstate;
  980.  
  981.   /* Send CMD9 SEND_CSD */
  982.   sdmmc_cmdinit.Argument         = Argument;
  983.   sdmmc_cmdinit.CmdIndex         = SDMMC_CMD_SEND_CSD;
  984.   sdmmc_cmdinit.Response         = SDIO_RESPONSE_LONG;
  985.   sdmmc_cmdinit.WaitForInterrupt = SDIO_WAIT_NO;
  986.   sdmmc_cmdinit.CPSM             = SDIO_CPSM_ENABLE;
  987.   (void)SDIO_SendCommand(SDIOx, &sdmmc_cmdinit);
  988.  
  989.   /* Check for error conditions */
  990.   errorstate = SDMMC_GetCmdResp2(SDIOx);
  991.  
  992.   return errorstate;
  993. }
  994.  
  995. /**
  996.   * @brief  Send the Send CSD command and check the response.
  997.   * @param  SDIOx: Pointer to SDIO register base
  998.   * @param  pRCA: Card RCA  
  999.   * @retval HAL status
  1000.   */
  1001. uint32_t SDMMC_CmdSetRelAdd(SDIO_TypeDef *SDIOx, uint16_t *pRCA)
  1002. {
  1003.   SDIO_CmdInitTypeDef  sdmmc_cmdinit;
  1004.   uint32_t errorstate;
  1005.  
  1006.   /* Send CMD3 SD_CMD_SET_REL_ADDR */
  1007.   sdmmc_cmdinit.Argument         = 0U;
  1008.   sdmmc_cmdinit.CmdIndex         = SDMMC_CMD_SET_REL_ADDR;
  1009.   sdmmc_cmdinit.Response         = SDIO_RESPONSE_SHORT;
  1010.   sdmmc_cmdinit.WaitForInterrupt = SDIO_WAIT_NO;
  1011.   sdmmc_cmdinit.CPSM             = SDIO_CPSM_ENABLE;
  1012.   (void)SDIO_SendCommand(SDIOx, &sdmmc_cmdinit);
  1013.  
  1014.   /* Check for error conditions */
  1015.   errorstate = SDMMC_GetCmdResp6(SDIOx, SDMMC_CMD_SET_REL_ADDR, pRCA);
  1016.  
  1017.   return errorstate;
  1018. }
  1019.  
  1020. /**
  1021.   * @brief  Send the Set Relative Address command to MMC card (not SD card).
  1022.   * @param  SDIOx Pointer to SDIO register base
  1023.   * @param  RCA Card RCA
  1024.   * @retval HAL status
  1025.   */
  1026. uint32_t SDMMC_CmdSetRelAddMmc(SDIO_TypeDef *SDIOx, uint16_t RCA)
  1027. {
  1028.   SDIO_CmdInitTypeDef  sdmmc_cmdinit;
  1029.   uint32_t errorstate;
  1030.  
  1031.   /* Send CMD3 SD_CMD_SET_REL_ADDR */
  1032.   sdmmc_cmdinit.Argument         = ((uint32_t)RCA << 16U);
  1033.   sdmmc_cmdinit.CmdIndex         = SDMMC_CMD_SET_REL_ADDR;
  1034.   sdmmc_cmdinit.Response         = SDIO_RESPONSE_SHORT;
  1035.   sdmmc_cmdinit.WaitForInterrupt = SDIO_WAIT_NO;
  1036.   sdmmc_cmdinit.CPSM             = SDIO_CPSM_ENABLE;
  1037.   (void)SDIO_SendCommand(SDIOx, &sdmmc_cmdinit);
  1038.  
  1039.   /* Check for error conditions */
  1040.   errorstate = SDMMC_GetCmdResp1(SDIOx, SDMMC_CMD_SET_REL_ADDR, SDIO_CMDTIMEOUT);
  1041.  
  1042.   return errorstate;
  1043. }
  1044.  
  1045. /**
  1046.   * @brief  Send the Status command and check the response.
  1047.   * @param  SDIOx: Pointer to SDIO register base
  1048.   * @param  Argument: Command Argument
  1049.   * @retval HAL status
  1050.   */
  1051. uint32_t SDMMC_CmdSendStatus(SDIO_TypeDef *SDIOx, uint32_t Argument)
  1052. {
  1053.   SDIO_CmdInitTypeDef  sdmmc_cmdinit;
  1054.   uint32_t errorstate;
  1055.  
  1056.   sdmmc_cmdinit.Argument         = Argument;
  1057.   sdmmc_cmdinit.CmdIndex         = SDMMC_CMD_SEND_STATUS;
  1058.   sdmmc_cmdinit.Response         = SDIO_RESPONSE_SHORT;
  1059.   sdmmc_cmdinit.WaitForInterrupt = SDIO_WAIT_NO;
  1060.   sdmmc_cmdinit.CPSM             = SDIO_CPSM_ENABLE;
  1061.   (void)SDIO_SendCommand(SDIOx, &sdmmc_cmdinit);
  1062.  
  1063.   /* Check for error conditions */
  1064.   errorstate = SDMMC_GetCmdResp1(SDIOx, SDMMC_CMD_SEND_STATUS, SDIO_CMDTIMEOUT);
  1065.  
  1066.   return errorstate;
  1067. }
  1068.  
  1069. /**
  1070.   * @brief  Send the Status register command and check the response.
  1071.   * @param  SDIOx: Pointer to SDIO register base
  1072.   * @retval HAL status
  1073.   */
  1074. uint32_t SDMMC_CmdStatusRegister(SDIO_TypeDef *SDIOx)
  1075. {
  1076.   SDIO_CmdInitTypeDef  sdmmc_cmdinit;
  1077.   uint32_t errorstate;
  1078.  
  1079.   sdmmc_cmdinit.Argument         = 0U;
  1080.   sdmmc_cmdinit.CmdIndex         = SDMMC_CMD_SD_APP_STATUS;
  1081.   sdmmc_cmdinit.Response         = SDIO_RESPONSE_SHORT;
  1082.   sdmmc_cmdinit.WaitForInterrupt = SDIO_WAIT_NO;
  1083.   sdmmc_cmdinit.CPSM             = SDIO_CPSM_ENABLE;
  1084.   (void)SDIO_SendCommand(SDIOx, &sdmmc_cmdinit);
  1085.  
  1086.   /* Check for error conditions */
  1087.   errorstate = SDMMC_GetCmdResp1(SDIOx, SDMMC_CMD_SD_APP_STATUS, SDIO_CMDTIMEOUT);
  1088.  
  1089.   return errorstate;
  1090. }
  1091.  
  1092. /**
  1093.   * @brief  Sends host capacity support information and activates the card's
  1094.   *         initialization process. Send SDMMC_CMD_SEND_OP_COND command
  1095.   * @param  SDIOx: Pointer to SDIO register base
  1096.   * @parame Argument: Argument used for the command
  1097.   * @retval HAL status
  1098.   */
  1099. uint32_t SDMMC_CmdOpCondition(SDIO_TypeDef *SDIOx, uint32_t Argument)
  1100. {
  1101.   SDIO_CmdInitTypeDef  sdmmc_cmdinit;
  1102.   uint32_t errorstate;
  1103.  
  1104.   sdmmc_cmdinit.Argument         = Argument;
  1105.   sdmmc_cmdinit.CmdIndex         = SDMMC_CMD_SEND_OP_COND;
  1106.   sdmmc_cmdinit.Response         = SDIO_RESPONSE_SHORT;
  1107.   sdmmc_cmdinit.WaitForInterrupt = SDIO_WAIT_NO;
  1108.   sdmmc_cmdinit.CPSM             = SDIO_CPSM_ENABLE;
  1109.   (void)SDIO_SendCommand(SDIOx, &sdmmc_cmdinit);
  1110.  
  1111.   /* Check for error conditions */
  1112.   errorstate = SDMMC_GetCmdResp3(SDIOx);
  1113.  
  1114.   return errorstate;
  1115. }
  1116.  
  1117. /**
  1118.   * @brief  Checks switchable function and switch card function. SDMMC_CMD_HS_SWITCH command
  1119.   * @param  SDIOx: Pointer to SDIO register base
  1120.   * @parame Argument: Argument used for the command
  1121.   * @retval HAL status
  1122.   */
  1123. uint32_t SDMMC_CmdSwitch(SDIO_TypeDef *SDIOx, uint32_t Argument)
  1124. {
  1125.   SDIO_CmdInitTypeDef  sdmmc_cmdinit;
  1126.   uint32_t errorstate;
  1127.  
  1128.   /* Send CMD6 to activate SDR50 Mode and Power Limit 1.44W */
  1129.   /* CMD Response: R1 */
  1130.   sdmmc_cmdinit.Argument         = Argument; /* SDMMC_SDR25_SWITCH_PATTERN */
  1131.   sdmmc_cmdinit.CmdIndex         = SDMMC_CMD_HS_SWITCH;
  1132.   sdmmc_cmdinit.Response         = SDIO_RESPONSE_SHORT;
  1133.   sdmmc_cmdinit.WaitForInterrupt = SDIO_WAIT_NO;
  1134.   sdmmc_cmdinit.CPSM             = SDIO_CPSM_ENABLE;
  1135.   (void)SDIO_SendCommand(SDIOx, &sdmmc_cmdinit);
  1136.  
  1137.   /* Check for error conditions */
  1138.   errorstate = SDMMC_GetCmdResp1(SDIOx, SDMMC_CMD_HS_SWITCH, SDIO_CMDTIMEOUT);
  1139.  
  1140.   return errorstate;
  1141. }
  1142.  
  1143. /**
  1144.   * @brief  Send the Send EXT_CSD command and check the response.
  1145.   * @param  SDIOx Pointer to SDMMC register base
  1146.   * @param  Argument Command Argument
  1147.   * @retval HAL status
  1148.   */
  1149. uint32_t SDMMC_CmdSendEXTCSD(SDIO_TypeDef *SDIOx, uint32_t Argument)
  1150. {
  1151.   SDIO_CmdInitTypeDef  sdmmc_cmdinit;
  1152.   uint32_t errorstate;
  1153.  
  1154.   /* Send CMD9 SEND_CSD */
  1155.   sdmmc_cmdinit.Argument         = Argument;
  1156.   sdmmc_cmdinit.CmdIndex         = SDMMC_CMD_HS_SEND_EXT_CSD;
  1157.   sdmmc_cmdinit.Response         = SDIO_RESPONSE_SHORT;
  1158.   sdmmc_cmdinit.WaitForInterrupt = SDIO_WAIT_NO;
  1159.   sdmmc_cmdinit.CPSM             = SDIO_CPSM_ENABLE;
  1160.   (void)SDIO_SendCommand(SDIOx, &sdmmc_cmdinit);
  1161.  
  1162.   /* Check for error conditions */
  1163.   errorstate = SDMMC_GetCmdResp1(SDIOx, SDMMC_CMD_HS_SEND_EXT_CSD,SDIO_CMDTIMEOUT);
  1164.  
  1165.   return errorstate;
  1166. }
  1167.  
  1168. /**
  1169.   * @}
  1170.   */
  1171.  
  1172. /** @defgroup HAL_SDMMC_LL_Group5 Responses management functions
  1173.  *  @brief   Responses functions
  1174.  *
  1175. @verbatim
  1176.  ===============================================================================
  1177.                    ##### Responses management functions #####
  1178.  ===============================================================================
  1179.     [..]
  1180.     This subsection provides a set of functions allowing to manage the needed responses.
  1181.  
  1182. @endverbatim
  1183.   * @{
  1184.   */
  1185. /**
  1186.   * @brief  Checks for error conditions for R1 response.
  1187.   * @param  SDIOx Pointer to SDMMC register base
  1188.   * @param  SD_CMD: The sent command index  
  1189.   * @retval SD Card error state
  1190.   */
  1191. uint32_t SDMMC_GetCmdResp1(SDIO_TypeDef *SDIOx, uint8_t SD_CMD, uint32_t Timeout)
  1192. {
  1193.   uint32_t response_r1;
  1194.   uint32_t sta_reg;
  1195.  
  1196.   /* 8 is the number of required instructions cycles for the below loop statement.
  1197.   The Timeout is expressed in ms */
  1198.   uint32_t count = Timeout * (SystemCoreClock / 8U /1000U);
  1199.  
  1200.   do
  1201.   {
  1202.     if (count-- == 0U)
  1203.     {
  1204.       return SDMMC_ERROR_TIMEOUT;
  1205.     }
  1206.     sta_reg = SDIOx->STA;
  1207.   }while(((sta_reg & (SDIO_FLAG_CCRCFAIL | SDIO_FLAG_CMDREND | SDIO_FLAG_CTIMEOUT)) == 0U) ||
  1208.          ((sta_reg & SDIO_FLAG_CMDACT) != 0U ));
  1209.    
  1210.   if(__SDIO_GET_FLAG(SDIOx, SDIO_FLAG_CTIMEOUT))
  1211.   {
  1212.     __SDIO_CLEAR_FLAG(SDIOx, SDIO_FLAG_CTIMEOUT);
  1213.    
  1214.     return SDMMC_ERROR_CMD_RSP_TIMEOUT;
  1215.   }
  1216.   else if(__SDIO_GET_FLAG(SDIOx, SDIO_FLAG_CCRCFAIL))
  1217.   {
  1218.     __SDIO_CLEAR_FLAG(SDIOx, SDIO_FLAG_CCRCFAIL);
  1219.    
  1220.     return SDMMC_ERROR_CMD_CRC_FAIL;
  1221.   }
  1222.   else
  1223.   {
  1224.     /* Nothing to do */
  1225.   }
  1226.  
  1227.   /* Clear all the static flags */
  1228.   __SDIO_CLEAR_FLAG(SDIOx, SDIO_STATIC_CMD_FLAGS);
  1229.  
  1230.   /* Check response received is of desired command */
  1231.   if(SDIO_GetCommandResponse(SDIOx) != SD_CMD)
  1232.   {
  1233.     return SDMMC_ERROR_CMD_CRC_FAIL;
  1234.   }
  1235.  
  1236.   /* We have received response, retrieve it for analysis  */
  1237.   response_r1 = SDIO_GetResponse(SDIOx, SDIO_RESP1);
  1238.  
  1239.   if((response_r1 & SDMMC_OCR_ERRORBITS) == SDMMC_ALLZERO)
  1240.   {
  1241.     return SDMMC_ERROR_NONE;
  1242.   }
  1243.   else if((response_r1 & SDMMC_OCR_ADDR_OUT_OF_RANGE) == SDMMC_OCR_ADDR_OUT_OF_RANGE)
  1244.   {
  1245.     return SDMMC_ERROR_ADDR_OUT_OF_RANGE;
  1246.   }
  1247.   else if((response_r1 & SDMMC_OCR_ADDR_MISALIGNED) == SDMMC_OCR_ADDR_MISALIGNED)
  1248.   {
  1249.     return SDMMC_ERROR_ADDR_MISALIGNED;
  1250.   }
  1251.   else if((response_r1 & SDMMC_OCR_BLOCK_LEN_ERR) == SDMMC_OCR_BLOCK_LEN_ERR)
  1252.   {
  1253.     return SDMMC_ERROR_BLOCK_LEN_ERR;
  1254.   }
  1255.   else if((response_r1 & SDMMC_OCR_ERASE_SEQ_ERR) == SDMMC_OCR_ERASE_SEQ_ERR)
  1256.   {
  1257.     return SDMMC_ERROR_ERASE_SEQ_ERR;
  1258.   }
  1259.   else if((response_r1 & SDMMC_OCR_BAD_ERASE_PARAM) == SDMMC_OCR_BAD_ERASE_PARAM)
  1260.   {
  1261.     return SDMMC_ERROR_BAD_ERASE_PARAM;
  1262.   }
  1263.   else if((response_r1 & SDMMC_OCR_WRITE_PROT_VIOLATION) == SDMMC_OCR_WRITE_PROT_VIOLATION)
  1264.   {
  1265.     return SDMMC_ERROR_WRITE_PROT_VIOLATION;
  1266.   }
  1267.   else if((response_r1 & SDMMC_OCR_LOCK_UNLOCK_FAILED) == SDMMC_OCR_LOCK_UNLOCK_FAILED)
  1268.   {
  1269.     return SDMMC_ERROR_LOCK_UNLOCK_FAILED;
  1270.   }
  1271.   else if((response_r1 & SDMMC_OCR_COM_CRC_FAILED) == SDMMC_OCR_COM_CRC_FAILED)
  1272.   {
  1273.     return SDMMC_ERROR_COM_CRC_FAILED;
  1274.   }
  1275.   else if((response_r1 & SDMMC_OCR_ILLEGAL_CMD) == SDMMC_OCR_ILLEGAL_CMD)
  1276.   {
  1277.     return SDMMC_ERROR_ILLEGAL_CMD;
  1278.   }
  1279.   else if((response_r1 & SDMMC_OCR_CARD_ECC_FAILED) == SDMMC_OCR_CARD_ECC_FAILED)
  1280.   {
  1281.     return SDMMC_ERROR_CARD_ECC_FAILED;
  1282.   }
  1283.   else if((response_r1 & SDMMC_OCR_CC_ERROR) == SDMMC_OCR_CC_ERROR)
  1284.   {
  1285.     return SDMMC_ERROR_CC_ERR;
  1286.   }
  1287.   else if((response_r1 & SDMMC_OCR_STREAM_READ_UNDERRUN) == SDMMC_OCR_STREAM_READ_UNDERRUN)
  1288.   {
  1289.     return SDMMC_ERROR_STREAM_READ_UNDERRUN;
  1290.   }
  1291.   else if((response_r1 & SDMMC_OCR_STREAM_WRITE_OVERRUN) == SDMMC_OCR_STREAM_WRITE_OVERRUN)
  1292.   {
  1293.     return SDMMC_ERROR_STREAM_WRITE_OVERRUN;
  1294.   }
  1295.   else if((response_r1 & SDMMC_OCR_CID_CSD_OVERWRITE) == SDMMC_OCR_CID_CSD_OVERWRITE)
  1296.   {
  1297.     return SDMMC_ERROR_CID_CSD_OVERWRITE;
  1298.   }
  1299.   else if((response_r1 & SDMMC_OCR_WP_ERASE_SKIP) == SDMMC_OCR_WP_ERASE_SKIP)
  1300.   {
  1301.     return SDMMC_ERROR_WP_ERASE_SKIP;
  1302.   }
  1303.   else if((response_r1 & SDMMC_OCR_CARD_ECC_DISABLED) == SDMMC_OCR_CARD_ECC_DISABLED)
  1304.   {
  1305.     return SDMMC_ERROR_CARD_ECC_DISABLED;
  1306.   }
  1307.   else if((response_r1 & SDMMC_OCR_ERASE_RESET) == SDMMC_OCR_ERASE_RESET)
  1308.   {
  1309.     return SDMMC_ERROR_ERASE_RESET;
  1310.   }
  1311.   else if((response_r1 & SDMMC_OCR_AKE_SEQ_ERROR) == SDMMC_OCR_AKE_SEQ_ERROR)
  1312.   {
  1313.     return SDMMC_ERROR_AKE_SEQ_ERR;
  1314.   }
  1315.   else
  1316.   {
  1317.     return SDMMC_ERROR_GENERAL_UNKNOWN_ERR;
  1318.   }
  1319. }
  1320.  
  1321. /**
  1322.   * @brief  Checks for error conditions for R2 (CID or CSD) response.
  1323.   * @param  SDIOx Pointer to SDMMC register base
  1324.   * @retval SD Card error state
  1325.   */
  1326. uint32_t SDMMC_GetCmdResp2(SDIO_TypeDef *SDIOx)
  1327. {
  1328.   uint32_t sta_reg;
  1329.   /* 8 is the number of required instructions cycles for the below loop statement.
  1330.   The SDIO_CMDTIMEOUT is expressed in ms */
  1331.   uint32_t count = SDIO_CMDTIMEOUT * (SystemCoreClock / 8U /1000U);
  1332.  
  1333.   do
  1334.   {
  1335.     if (count-- == 0U)
  1336.     {
  1337.       return SDMMC_ERROR_TIMEOUT;
  1338.     }
  1339.     sta_reg = SDIOx->STA;
  1340.   }while(((sta_reg & (SDIO_FLAG_CCRCFAIL | SDIO_FLAG_CMDREND | SDIO_FLAG_CTIMEOUT)) == 0U) ||
  1341.          ((sta_reg & SDIO_FLAG_CMDACT) != 0U ));
  1342.    
  1343.   if (__SDIO_GET_FLAG(SDIOx, SDIO_FLAG_CTIMEOUT))
  1344.   {
  1345.     __SDIO_CLEAR_FLAG(SDIOx, SDIO_FLAG_CTIMEOUT);
  1346.    
  1347.     return SDMMC_ERROR_CMD_RSP_TIMEOUT;
  1348.   }
  1349.   else if (__SDIO_GET_FLAG(SDIOx, SDIO_FLAG_CCRCFAIL))
  1350.   {
  1351.     __SDIO_CLEAR_FLAG(SDIOx, SDIO_FLAG_CCRCFAIL);
  1352.    
  1353.     return SDMMC_ERROR_CMD_CRC_FAIL;
  1354.   }
  1355.   else
  1356.   {
  1357.     /* No error flag set */
  1358.     /* Clear all the static flags */
  1359.     __SDIO_CLEAR_FLAG(SDIOx, SDIO_STATIC_CMD_FLAGS);
  1360.   }
  1361.  
  1362.   return SDMMC_ERROR_NONE;
  1363. }
  1364.  
  1365. /**
  1366.   * @brief  Checks for error conditions for R3 (OCR) response.
  1367.   * @param  SDIOx Pointer to SDMMC register base
  1368.   * @retval SD Card error state
  1369.   */
  1370. uint32_t SDMMC_GetCmdResp3(SDIO_TypeDef *SDIOx)
  1371. {
  1372.   uint32_t sta_reg;
  1373.   /* 8 is the number of required instructions cycles for the below loop statement.
  1374.   The SDIO_CMDTIMEOUT is expressed in ms */
  1375.   uint32_t count = SDIO_CMDTIMEOUT * (SystemCoreClock / 8U /1000U);
  1376.  
  1377.   do
  1378.   {
  1379.     if (count-- == 0U)
  1380.     {
  1381.       return SDMMC_ERROR_TIMEOUT;
  1382.     }
  1383.     sta_reg = SDIOx->STA;
  1384.   }while(((sta_reg & (SDIO_FLAG_CCRCFAIL | SDIO_FLAG_CMDREND | SDIO_FLAG_CTIMEOUT)) == 0U) ||
  1385.          ((sta_reg & SDIO_FLAG_CMDACT) != 0U ));
  1386.    
  1387.   if(__SDIO_GET_FLAG(SDIOx, SDIO_FLAG_CTIMEOUT))
  1388.   {
  1389.     __SDIO_CLEAR_FLAG(SDIOx, SDIO_FLAG_CTIMEOUT);
  1390.    
  1391.     return SDMMC_ERROR_CMD_RSP_TIMEOUT;
  1392.   }
  1393.   else
  1394.   {  
  1395.     /* Clear all the static flags */
  1396.     __SDIO_CLEAR_FLAG(SDIOx, SDIO_STATIC_CMD_FLAGS);
  1397.   }
  1398.  
  1399.   return SDMMC_ERROR_NONE;
  1400. }
  1401.  
  1402. /**
  1403.   * @brief  Checks for error conditions for R6 (RCA) response.
  1404.   * @param  SDIOx Pointer to SDMMC register base
  1405.   * @param  SD_CMD: The sent command index
  1406.   * @param  pRCA: Pointer to the variable that will contain the SD card relative
  1407.   *         address RCA  
  1408.   * @retval SD Card error state
  1409.   */
  1410. uint32_t SDMMC_GetCmdResp6(SDIO_TypeDef *SDIOx, uint8_t SD_CMD, uint16_t *pRCA)
  1411. {
  1412.   uint32_t response_r1;
  1413.   uint32_t sta_reg;
  1414.  
  1415.   /* 8 is the number of required instructions cycles for the below loop statement.
  1416.   The SDIO_CMDTIMEOUT is expressed in ms */
  1417.   uint32_t count = SDIO_CMDTIMEOUT * (SystemCoreClock / 8U /1000U);
  1418.  
  1419.   do
  1420.   {
  1421.     if (count-- == 0U)
  1422.     {
  1423.       return SDMMC_ERROR_TIMEOUT;
  1424.     }
  1425.     sta_reg = SDIOx->STA;
  1426.   }while(((sta_reg & (SDIO_FLAG_CCRCFAIL | SDIO_FLAG_CMDREND | SDIO_FLAG_CTIMEOUT)) == 0U) ||
  1427.          ((sta_reg & SDIO_FLAG_CMDACT) != 0U ));
  1428.    
  1429.   if(__SDIO_GET_FLAG(SDIOx, SDIO_FLAG_CTIMEOUT))
  1430.   {
  1431.     __SDIO_CLEAR_FLAG(SDIOx, SDIO_FLAG_CTIMEOUT);
  1432.    
  1433.     return SDMMC_ERROR_CMD_RSP_TIMEOUT;
  1434.   }
  1435.   else if(__SDIO_GET_FLAG(SDIOx, SDIO_FLAG_CCRCFAIL))
  1436.   {
  1437.     __SDIO_CLEAR_FLAG(SDIOx, SDIO_FLAG_CCRCFAIL);
  1438.    
  1439.     return SDMMC_ERROR_CMD_CRC_FAIL;
  1440.   }
  1441.   else
  1442.   {
  1443.     /* Nothing to do */
  1444.   }
  1445.  
  1446.   /* Check response received is of desired command */
  1447.   if(SDIO_GetCommandResponse(SDIOx) != SD_CMD)
  1448.   {
  1449.     return SDMMC_ERROR_CMD_CRC_FAIL;
  1450.   }
  1451.  
  1452.   /* Clear all the static flags */
  1453.   __SDIO_CLEAR_FLAG(SDIOx, SDIO_STATIC_CMD_FLAGS);
  1454.  
  1455.   /* We have received response, retrieve it.  */
  1456.   response_r1 = SDIO_GetResponse(SDIOx, SDIO_RESP1);
  1457.  
  1458.   if((response_r1 & (SDMMC_R6_GENERAL_UNKNOWN_ERROR | SDMMC_R6_ILLEGAL_CMD | SDMMC_R6_COM_CRC_FAILED)) == SDMMC_ALLZERO)
  1459.   {
  1460.     *pRCA = (uint16_t) (response_r1 >> 16);
  1461.    
  1462.     return SDMMC_ERROR_NONE;
  1463.   }
  1464.   else if((response_r1 & SDMMC_R6_ILLEGAL_CMD) == SDMMC_R6_ILLEGAL_CMD)
  1465.   {
  1466.     return SDMMC_ERROR_ILLEGAL_CMD;
  1467.   }
  1468.   else if((response_r1 & SDMMC_R6_COM_CRC_FAILED) == SDMMC_R6_COM_CRC_FAILED)
  1469.   {
  1470.     return SDMMC_ERROR_COM_CRC_FAILED;
  1471.   }
  1472.   else
  1473.   {
  1474.     return SDMMC_ERROR_GENERAL_UNKNOWN_ERR;
  1475.   }
  1476. }
  1477.  
  1478. /**
  1479.   * @brief  Checks for error conditions for R7 response.
  1480.   * @param  SDIOx Pointer to SDMMC register base
  1481.   * @retval SD Card error state
  1482.   */
  1483. uint32_t SDMMC_GetCmdResp7(SDIO_TypeDef *SDIOx)
  1484. {
  1485.   uint32_t sta_reg;
  1486.   /* 8 is the number of required instructions cycles for the below loop statement.
  1487.   The SDIO_CMDTIMEOUT is expressed in ms */
  1488.   uint32_t count = SDIO_CMDTIMEOUT * (SystemCoreClock / 8U /1000U);
  1489.  
  1490.   do
  1491.   {
  1492.     if (count-- == 0U)
  1493.     {
  1494.       return SDMMC_ERROR_TIMEOUT;
  1495.     }
  1496.     sta_reg = SDIOx->STA;
  1497.   }while(((sta_reg & (SDIO_FLAG_CCRCFAIL | SDIO_FLAG_CMDREND | SDIO_FLAG_CTIMEOUT)) == 0U) ||
  1498.          ((sta_reg & SDIO_FLAG_CMDACT) != 0U ));
  1499.    
  1500.   if(__SDIO_GET_FLAG(SDIOx, SDIO_FLAG_CTIMEOUT))
  1501.   {
  1502.     /* Card is SD V2.0 compliant */
  1503.     __SDIO_CLEAR_FLAG(SDIOx, SDIO_FLAG_CTIMEOUT);
  1504.    
  1505.     return SDMMC_ERROR_CMD_RSP_TIMEOUT;
  1506.   }
  1507.   else if(__SDIO_GET_FLAG(SDIOx, SDIO_FLAG_CCRCFAIL))
  1508.   {
  1509.     /* Card is SD V2.0 compliant */
  1510.     __SDIO_CLEAR_FLAG(SDIOx, SDIO_FLAG_CCRCFAIL);
  1511.    
  1512.     return SDMMC_ERROR_CMD_CRC_FAIL;
  1513.   }
  1514.   else
  1515.   {
  1516.     /* Nothing to do */
  1517.   }
  1518.  
  1519.   if(__SDIO_GET_FLAG(SDIOx, SDIO_FLAG_CMDREND))
  1520.   {
  1521.     /* Card is SD V2.0 compliant */
  1522.     __SDIO_CLEAR_FLAG(SDIOx, SDIO_FLAG_CMDREND);
  1523.   }
  1524.  
  1525.   return SDMMC_ERROR_NONE;
  1526.  
  1527. }
  1528.  
  1529. /**
  1530.   * @}
  1531.   */
  1532.  
  1533. /* Private function ----------------------------------------------------------*/  
  1534. /** @addtogroup SD_Private_Functions
  1535.   * @{
  1536.   */
  1537.    
  1538. /**
  1539.   * @brief  Checks for error conditions for CMD0.
  1540.   * @param  SDIOx Pointer to SDMMC register base
  1541.   * @retval SD Card error state
  1542.   */
  1543. static uint32_t SDMMC_GetCmdError(SDIO_TypeDef *SDIOx)
  1544. {
  1545.   /* 8 is the number of required instructions cycles for the below loop statement.
  1546.   The SDIO_CMDTIMEOUT is expressed in ms */
  1547.   uint32_t count = SDIO_CMDTIMEOUT * (SystemCoreClock / 8U /1000U);
  1548.  
  1549.   do
  1550.   {
  1551.     if (count-- == 0U)
  1552.     {
  1553.       return SDMMC_ERROR_TIMEOUT;
  1554.     }
  1555.    
  1556.   }while(!__SDIO_GET_FLAG(SDIOx, SDIO_FLAG_CMDSENT));
  1557.  
  1558.   /* Clear all the static flags */
  1559.   __SDIO_CLEAR_FLAG(SDIOx, SDIO_STATIC_CMD_FLAGS);
  1560.  
  1561.   return SDMMC_ERROR_NONE;
  1562. }
  1563.  
  1564.  
  1565. /**
  1566.   * @}
  1567.   */
  1568.  
  1569. #endif /* HAL_SD_MODULE_ENABLED || HAL_MMC_MODULE_ENABLED */
  1570. /**
  1571.   * @}
  1572.   */
  1573.  
  1574. /**
  1575.   * @}
  1576.   */
  1577.  
  1578. #endif /* SDIO */
  1579.