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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.   @verbatim
  15.   ==============================================================================
  16.                        ##### SDMMC peripheral features #####
  17.   ==============================================================================        
  18.     [..] The SD/SDMMC MMC card host interface (SDMMC) provides an interface between the AHB
  19.          peripheral bus and MultiMedia cards (MMCs), SD memory cards, SDMMC cards and CE-ATA
  20.          devices.
  21.    
  22.     [..] The SDMMC features include the following:
  23.          (+) Full compliance with MultiMedia Card System Specification Version 4.2. Card support
  24.              for three different databus modes: 1-bit (default), 4-bit and 8-bit
  25.          (+) Full compatibility with previous versions of MultiMedia Cards (forward compatibility)
  26.          (+) Full compliance with SD Memory Card Specifications Version 2.0
  27.          (+) Full compliance with SD I/O Card Specification Version 2.0: card support for two
  28.              different data bus modes: 1-bit (default) and 4-bit
  29.          (+) Full support of the CE-ATA features (full compliance with CE-ATA digital protocol
  30.              Rev1.1)
  31.          (+) Data transfer up to 48 MHz for the 8 bit mode
  32.          (+) Data and command output enable signals to control external bidirectional drivers
  33.    
  34.                            ##### How to use this driver #####
  35.   ==============================================================================
  36.     [..]
  37.       This driver is a considered as a driver of service for external devices drivers
  38.       that interfaces with the SDMMC peripheral.
  39.       According to the device used (SD card/ MMC card / SDMMC card ...), a set of APIs
  40.       is used in the device's driver to perform SDMMC operations and functionalities.
  41.    
  42.       This driver is almost transparent for the final user, it is only used to implement other
  43.       functionalities of the external device.
  44.    
  45.     [..]
  46.       (+) The SDMMC clock (SDMMCCLK = 48 MHz) is coming from a specific output (MSI, PLLUSB1CLK,
  47.           PLLUSB2CLK). Before start working with SDMMC peripheral make sure that the
  48.           PLL is well configured.
  49.           The SDMMC peripheral uses two clock signals:
  50.           (++) SDMMC adapter clock (SDMMCCLK = 48 MHz)
  51.           (++) APB2 bus clock (PCLK2)
  52.        
  53.           -@@- PCLK2 and SDMMC_CK clock frequencies must respect the following condition:
  54.                Frequency(PCLK2) >= (3 / 8 x Frequency(SDMMC_CK))
  55.  
  56.       (+) Enable/Disable peripheral clock using RCC peripheral macros related to SDMMC
  57.           peripheral.
  58.  
  59.       (+) Enable the Power ON State using the SDIO_PowerState_ON()
  60.           function and disable it using the function SDIO_PowerState_OFF().
  61.                
  62.       (+) Enable/Disable the clock using the __SDIO_ENABLE()/__SDIO_DISABLE() macros.
  63.  
  64.       (+) Enable/Disable the peripheral interrupts using the macros __SDIO_ENABLE_IT()
  65.           and __SDIO_DISABLE_IT() if you need to use interrupt mode.
  66.  
  67.       (+) When using the DMA mode
  68.           (++) Configure the DMA in the MSP layer of the external device
  69.           (++) Active the needed channel Request
  70.           (++) Enable the DMA using __SDIO_DMA_ENABLE() macro or Disable it using the macro
  71.                __SDIO_DMA_DISABLE().
  72.  
  73.       (+) To control the CPSM (Command Path State Machine) and send
  74.           commands to the card use the SDIO_SendCommand(),
  75.           SDIO_GetCommandResponse() and SDIO_GetResponse() functions. First, user has
  76.           to fill the command structure (pointer to SDIO_CmdInitTypeDef) according
  77.           to the selected command to be sent.
  78.           The parameters that should be filled are:
  79.            (++) Command Argument
  80.            (++) Command Index
  81.            (++) Command Response type
  82.            (++) Command Wait
  83.            (++) CPSM Status (Enable or Disable).
  84.  
  85.           -@@- To check if the command is well received, read the SDIO_CMDRESP
  86.               register using the SDIO_GetCommandResponse().
  87.               The SDMMC responses registers (SDIO_RESP1 to SDIO_RESP2), use the
  88.               SDIO_GetResponse() function.
  89.  
  90.       (+) To control the DPSM (Data Path State Machine) and send/receive
  91.            data to/from the card use the SDIO_DataConfig(), SDIO_GetDataCounter(),
  92.           SDIO_ReadFIFO(), SDIO_WriteFIFO() and SDIO_GetFIFOCount() functions.
  93.  
  94.     *** Read Operations ***
  95.     =======================
  96.     [..]
  97.       (#) First, user has to fill the data structure (pointer to
  98.           SDIO_DataInitTypeDef) according to the selected data type to be received.
  99.           The parameters that should be filled are:
  100.            (++) Data TimeOut
  101.            (++) Data Length
  102.            (++) Data Block size
  103.            (++) Data Transfer direction: should be from card (To SDMMC)
  104.            (++) Data Transfer mode
  105.            (++) DPSM Status (Enable or Disable)
  106.                                      
  107.       (#) Configure the SDMMC resources to receive the data from the card
  108.           according to selected transfer mode (Refer to Step 8, 9 and 10).
  109.  
  110.       (#) Send the selected Read command (refer to step 11).
  111.                    
  112.       (#) Use the SDIO flags/interrupts to check the transfer status.
  113.  
  114.     *** Write Operations ***
  115.     ========================
  116.     [..]
  117.      (#) First, user has to fill the data structure (pointer to
  118.          SDIO_DataInitTypeDef) according to the selected data type to be received.
  119.          The parameters that should be filled are:
  120.           (++) Data TimeOut
  121.           (++) Data Length
  122.           (++) Data Block size
  123.           (++) Data Transfer direction:  should be to card (To CARD)
  124.           (++) Data Transfer mode
  125.           (++) DPSM Status (Enable or Disable)
  126.  
  127.      (#) Configure the SDMMC resources to send the data to the card according to
  128.          selected transfer mode.
  129.                      
  130.      (#) Send the selected Write command.
  131.                    
  132.      (#) Use the SDIO flags/interrupts to check the transfer status.
  133.        
  134.     *** Command management operations ***
  135.     =====================================
  136.     [..]
  137.      (#) The commands used for Read/Write/Erase operations are managed in
  138.          separate functions.
  139.          Each function allows to send the needed command with the related argument,
  140.          then check the response.
  141.          By the same approach, you could implement a command and check the response.
  142.  
  143.   @endverbatim
  144.   ******************************************************************************
  145.   * @attention
  146.   *
  147.   * <h2><center>&copy; Copyright (c) 2018 STMicroelectronics.
  148.   * All rights reserved.</center></h2>
  149.   *
  150.   * This software component is licensed by ST under BSD 3-Clause license,
  151.   * the "License"; You may not use this file except in compliance with the
  152.   * License. You may obtain a copy of the License at:
  153.   *                       opensource.org/licenses/BSD-3-Clause
  154.   *
  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. static uint32_t SDMMC_GetCmdResp1(SDIO_TypeDef *SDIOx, uint8_t SD_CMD, uint32_t Timeout);
  181. static uint32_t SDMMC_GetCmdResp2(SDIO_TypeDef *SDIOx);
  182. static uint32_t SDMMC_GetCmdResp3(SDIO_TypeDef *SDIOx);
  183. static uint32_t SDMMC_GetCmdResp7(SDIO_TypeDef *SDIOx);
  184. static uint32_t SDMMC_GetCmdResp6(SDIO_TypeDef *SDIOx, uint8_t SD_CMD, uint16_t *pRCA);
  185.  
  186. /* Exported functions --------------------------------------------------------*/
  187.  
  188. /** @defgroup SDMMC_LL_Exported_Functions SDMMC Low Layer Exported Functions
  189.   * @{
  190.   */
  191.  
  192. /** @defgroup HAL_SDMMC_LL_Group1 Initialization de-initialization functions
  193.  *  @brief    Initialization and Configuration functions
  194.  *
  195. @verbatim    
  196.  ===============================================================================
  197.               ##### Initialization/de-initialization functions #####
  198.  ===============================================================================
  199.     [..]  This section provides functions allowing to:
  200.  
  201. @endverbatim
  202.   * @{
  203.   */
  204.  
  205. /**
  206.   * @brief  Initializes the SDMMC according to the specified
  207.   *         parameters in the SDMMC_InitTypeDef and create the associated handle.
  208.   * @param  SDIOx: Pointer to SDMMC register base
  209.   * @param  Init: SDMMC initialization structure  
  210.   * @retval HAL status
  211.   */
  212. HAL_StatusTypeDef SDIO_Init(SDIO_TypeDef *SDIOx, SDIO_InitTypeDef Init)
  213. {
  214.   uint32_t tmpreg = 0;
  215.  
  216.   /* Check the parameters */
  217.   assert_param(IS_SDIO_ALL_INSTANCE(SDIOx));
  218.   assert_param(IS_SDIO_CLOCK_EDGE(Init.ClockEdge));
  219.   assert_param(IS_SDIO_CLOCK_BYPASS(Init.ClockBypass));
  220.   assert_param(IS_SDIO_CLOCK_POWER_SAVE(Init.ClockPowerSave));
  221.   assert_param(IS_SDIO_BUS_WIDE(Init.BusWide));
  222.   assert_param(IS_SDIO_HARDWARE_FLOW_CONTROL(Init.HardwareFlowControl));
  223.   assert_param(IS_SDIO_CLKDIV(Init.ClockDiv));
  224.  
  225.   /* Set SDMMC configuration parameters */
  226.   tmpreg |= (Init.ClockEdge           |\
  227.              Init.ClockBypass         |\
  228.              Init.ClockPowerSave      |\
  229.              Init.BusWide             |\
  230.              Init.HardwareFlowControl |\
  231.              Init.ClockDiv
  232.              );
  233.  
  234.   /* Write to SDMMC CLKCR */
  235.   MODIFY_REG(SDIOx->CLKCR, CLKCR_CLEAR_MASK, tmpreg);  
  236.  
  237.   return HAL_OK;
  238. }
  239.  
  240.  
  241. /**
  242.   * @}
  243.   */
  244.  
  245. /** @defgroup HAL_SDMMC_LL_Group2 IO operation functions
  246.  *  @brief   Data transfers functions
  247.  *
  248. @verbatim  
  249.  ===============================================================================
  250.                       ##### I/O operation functions #####
  251.  ===============================================================================  
  252.     [..]
  253.     This subsection provides a set of functions allowing to manage the SDMMC data
  254.     transfers.
  255.  
  256. @endverbatim
  257.   * @{
  258.   */
  259.  
  260. /**
  261.   * @brief  Read data (word) from Rx FIFO in blocking mode (polling)
  262.   * @param  SDIOx: Pointer to SDMMC register base
  263.   * @retval HAL status
  264.   */
  265. uint32_t SDIO_ReadFIFO(SDIO_TypeDef *SDIOx)
  266. {
  267.   /* Read data from Rx FIFO */
  268.   return (SDIOx->FIFO);
  269. }
  270.  
  271. /**
  272.   * @brief  Write data (word) to Tx FIFO in blocking mode (polling)
  273.   * @param  SDIOx: Pointer to SDMMC register base
  274.   * @param  pWriteData: pointer to data to write
  275.   * @retval HAL status
  276.   */
  277. HAL_StatusTypeDef SDIO_WriteFIFO(SDIO_TypeDef *SDIOx, uint32_t *pWriteData)
  278. {
  279.   /* Write data to FIFO */
  280.   SDIOx->FIFO = *pWriteData;
  281.  
  282.   return HAL_OK;
  283. }
  284.  
  285. /**
  286.   * @}
  287.   */
  288.  
  289. /** @defgroup HAL_SDMMC_LL_Group3 Peripheral Control functions
  290.  *  @brief   management functions
  291.  *
  292. @verbatim  
  293.  ===============================================================================
  294.                       ##### Peripheral Control functions #####
  295.  ===============================================================================  
  296.     [..]
  297.     This subsection provides a set of functions allowing to control the SDMMC data
  298.     transfers.
  299.  
  300. @endverbatim
  301.   * @{
  302.   */
  303.  
  304. /**
  305.   * @brief  Set SDMMC Power state to ON.
  306.   * @param  SDIOx: Pointer to SDMMC register base
  307.   * @retval HAL status
  308.   */
  309. HAL_StatusTypeDef SDIO_PowerState_ON(SDIO_TypeDef *SDIOx)
  310. {  
  311.   /* Set power state to ON */
  312.   SDIOx->POWER = SDIO_POWER_PWRCTRL;
  313.  
  314.   /* 1ms: required power up waiting time before starting the SD initialization
  315.   sequence */
  316.   HAL_Delay(2);
  317.  
  318.   return HAL_OK;
  319. }
  320.  
  321. /**
  322.   * @brief  Set SDMMC Power state to OFF.
  323.   * @param  SDIOx: Pointer to SDMMC register base
  324.   * @retval HAL status
  325.   */
  326. HAL_StatusTypeDef SDIO_PowerState_OFF(SDIO_TypeDef *SDIOx)
  327. {
  328.   /* Set power state to OFF */
  329.   SDIOx->POWER = (uint32_t)0x00000000;
  330.  
  331.   return HAL_OK;
  332. }
  333.  
  334. /**
  335.   * @brief  Get SDMMC Power state.
  336.   * @param  SDIOx: Pointer to SDMMC register base
  337.   * @retval Power status of the controller. The returned value can be one of the
  338.   *         following values:
  339.   *            - 0x00: Power OFF
  340.   *            - 0x02: Power UP
  341.   *            - 0x03: Power ON
  342.   */
  343. uint32_t SDIO_GetPowerState(SDIO_TypeDef *SDIOx)  
  344. {
  345.   return (SDIOx->POWER & SDIO_POWER_PWRCTRL);
  346. }
  347.  
  348. /**
  349.   * @brief  Configure the SDMMC command path according to the specified parameters in
  350.   *         SDIO_CmdInitTypeDef structure and send the command
  351.   * @param  SDIOx: Pointer to SDMMC register base
  352.   * @param  Command: pointer to a SDIO_CmdInitTypeDef structure that contains
  353.   *         the configuration information for the SDMMC command
  354.   * @retval HAL status
  355.   */
  356. HAL_StatusTypeDef SDIO_SendCommand(SDIO_TypeDef *SDIOx, SDIO_CmdInitTypeDef *Command)
  357. {
  358.   uint32_t tmpreg = 0;
  359.  
  360.   /* Check the parameters */
  361.   assert_param(IS_SDIO_CMD_INDEX(Command->CmdIndex));
  362.   assert_param(IS_SDIO_RESPONSE(Command->Response));
  363.   assert_param(IS_SDIO_WAIT(Command->WaitForInterrupt));
  364.   assert_param(IS_SDIO_CPSM(Command->CPSM));
  365.  
  366.   /* Set the SDMMC Argument value */
  367.   SDIOx->ARG = Command->Argument;
  368.  
  369.   /* Set SDMMC command parameters */
  370.   tmpreg |= (uint32_t)(Command->CmdIndex         |\
  371.                        Command->Response         |\
  372.                        Command->WaitForInterrupt |\
  373.                        Command->CPSM);
  374.  
  375.   /* Write to SDMMC CMD register */
  376.   MODIFY_REG(SDIOx->CMD, CMD_CLEAR_MASK, tmpreg);
  377.  
  378.   return HAL_OK;  
  379. }
  380.  
  381. /**
  382.   * @brief  Return the command index of last command for which response received
  383.   * @param  SDIOx: Pointer to SDMMC register base
  384.   * @retval Command index of the last command response received
  385.   */
  386. uint8_t SDIO_GetCommandResponse(SDIO_TypeDef *SDIOx)
  387. {
  388.   return (uint8_t)(SDIOx->RESPCMD);
  389. }
  390.  
  391.  
  392. /**
  393.   * @brief  Return the response received from the card for the last command
  394.   * @param  SDIOx: Pointer to SDMMC register base    
  395.   * @param  Response: Specifies the SDMMC response register.
  396.   *          This parameter can be one of the following values:
  397.   *            @arg SDIO_RESP1: Response Register 1
  398.   *            @arg SDIO_RESP2: Response Register 2
  399.   *            @arg SDIO_RESP3: Response Register 3
  400.   *            @arg SDIO_RESP4: Response Register 4  
  401.   * @retval The Corresponding response register value
  402.   */
  403. uint32_t SDIO_GetResponse(SDIO_TypeDef *SDIOx, uint32_t Response)
  404. {
  405.   uint32_t tmp;
  406.  
  407.   /* Check the parameters */
  408.   assert_param(IS_SDIO_RESP(Response));
  409.  
  410.   /* Get the response */
  411.   tmp = (uint32_t)(&(SDIOx->RESP1)) + Response;
  412.  
  413.   return (*(__IO uint32_t *) tmp);
  414. }  
  415.  
  416. /**
  417.   * @brief  Configure the SDMMC data path according to the specified
  418.   *         parameters in the SDIO_DataInitTypeDef.
  419.   * @param  SDIOx: Pointer to SDIO register base  
  420.   * @param  Data : pointer to a SDIO_DataInitTypeDef structure
  421.   *         that contains the configuration information for the SDMMC data.
  422.   * @retval HAL status
  423.   */
  424. HAL_StatusTypeDef SDIO_ConfigData(SDIO_TypeDef *SDIOx, SDIO_DataInitTypeDef* Data)
  425. {
  426.   uint32_t tmpreg = 0;
  427.  
  428.   /* Check the parameters */
  429.   assert_param(IS_SDIO_DATA_LENGTH(Data->DataLength));
  430.   assert_param(IS_SDIO_BLOCK_SIZE(Data->DataBlockSize));
  431.   assert_param(IS_SDIO_TRANSFER_DIR(Data->TransferDir));
  432.   assert_param(IS_SDIO_TRANSFER_MODE(Data->TransferMode));
  433.   assert_param(IS_SDIO_DPSM(Data->DPSM));
  434.  
  435.   /* Set the SDMMC Data TimeOut value */
  436.   SDIOx->DTIMER = Data->DataTimeOut;
  437.  
  438.   /* Set the SDMMC DataLength value */
  439.   SDIOx->DLEN = Data->DataLength;
  440.  
  441.   /* Set the SDMMC data configuration parameters */
  442.   tmpreg |= (uint32_t)(Data->DataBlockSize |\
  443.                        Data->TransferDir   |\
  444.                        Data->TransferMode  |\
  445.                        Data->DPSM);
  446.  
  447.   /* Write to SDMMC DCTRL */
  448.   MODIFY_REG(SDIOx->DCTRL, DCTRL_CLEAR_MASK, tmpreg);
  449.  
  450.   return HAL_OK;
  451.  
  452. }
  453.  
  454. /**
  455.   * @brief  Returns number of remaining data bytes to be transferred.
  456.   * @param  SDIOx: Pointer to SDIO register base
  457.   * @retval Number of remaining data bytes to be transferred
  458.   */
  459. uint32_t SDIO_GetDataCounter(SDIO_TypeDef *SDIOx)
  460. {
  461.   return (SDIOx->DCOUNT);
  462. }
  463.  
  464. /**
  465.   * @brief  Get the FIFO data
  466.   * @param  SDIOx: Pointer to SDIO register base
  467.   * @retval Data received
  468.   */
  469. uint32_t SDIO_GetFIFOCount(SDIO_TypeDef *SDIOx)
  470. {
  471.   return (SDIOx->FIFO);
  472. }
  473.  
  474. /**
  475.   * @brief  Sets one of the two options of inserting read wait interval.
  476.   * @param  SDIOx: Pointer to SDIO register base  
  477.   * @param  SDIO_ReadWaitMode: SDMMC Read Wait operation mode.
  478.   *          This parameter can be:
  479.   *            @arg SDIO_READ_WAIT_MODE_CLK: Read Wait control by stopping SDMMCCLK
  480.   *            @arg SDIO_READ_WAIT_MODE_DATA2: Read Wait control using SDMMC_DATA2
  481.   * @retval None
  482.   */
  483. HAL_StatusTypeDef SDIO_SetSDMMCReadWaitMode(SDIO_TypeDef *SDIOx, uint32_t SDIO_ReadWaitMode)
  484. {
  485.   /* Check the parameters */
  486.   assert_param(IS_SDIO_READWAIT_MODE(SDIO_ReadWaitMode));
  487.  
  488.   /* Set SDMMC read wait mode */
  489.   MODIFY_REG(SDIOx->DCTRL, SDIO_DCTRL_RWMOD, SDIO_ReadWaitMode);
  490.  
  491.   return HAL_OK;  
  492. }
  493.  
  494. /**
  495.   * @}
  496.   */
  497.  
  498.  
  499. /** @defgroup HAL_SDMMC_LL_Group4 Command management functions
  500.  *  @brief   Data transfers functions
  501.  *
  502. @verbatim  
  503.  ===============================================================================
  504.                    ##### Commands management functions #####
  505.  ===============================================================================  
  506.     [..]
  507.     This subsection provides a set of functions allowing to manage the needed commands.
  508.  
  509. @endverbatim
  510.   * @{
  511.   */
  512.  
  513. /**
  514.   * @brief  Send the Data Block Lenght command and check the response
  515.   * @param  SDIOx: Pointer to SDIO register base
  516.   * @retval HAL status
  517.   */
  518. uint32_t SDMMC_CmdBlockLength(SDIO_TypeDef *SDIOx, uint32_t BlockSize)
  519. {
  520.   SDIO_CmdInitTypeDef  sdmmc_cmdinit;
  521.   uint32_t errorstate;
  522.  
  523.   /* Set Block Size for Card */
  524.   sdmmc_cmdinit.Argument         = (uint32_t)BlockSize;
  525.   sdmmc_cmdinit.CmdIndex         = SDMMC_CMD_SET_BLOCKLEN;
  526.   sdmmc_cmdinit.Response         = SDIO_RESPONSE_SHORT;
  527.   sdmmc_cmdinit.WaitForInterrupt = SDIO_WAIT_NO;
  528.   sdmmc_cmdinit.CPSM             = SDIO_CPSM_ENABLE;
  529.   (void)SDIO_SendCommand(SDIOx, &sdmmc_cmdinit);
  530.  
  531.   /* Check for error conditions */
  532.   errorstate = SDMMC_GetCmdResp1(SDIOx, SDMMC_CMD_SET_BLOCKLEN, SDIO_CMDTIMEOUT);
  533.  
  534.   return errorstate;
  535. }
  536.  
  537. /**
  538.   * @brief  Send the Read Single Block command and check the response
  539.   * @param  SDIOx: Pointer to SDIO register base
  540.   * @retval HAL status
  541.   */
  542. uint32_t SDMMC_CmdReadSingleBlock(SDIO_TypeDef *SDIOx, uint32_t ReadAdd)
  543. {
  544.   SDIO_CmdInitTypeDef  sdmmc_cmdinit;
  545.   uint32_t errorstate;
  546.  
  547.   /* Set Block Size for Card */
  548.   sdmmc_cmdinit.Argument         = (uint32_t)ReadAdd;
  549.   sdmmc_cmdinit.CmdIndex         = SDMMC_CMD_READ_SINGLE_BLOCK;
  550.   sdmmc_cmdinit.Response         = SDIO_RESPONSE_SHORT;
  551.   sdmmc_cmdinit.WaitForInterrupt = SDIO_WAIT_NO;
  552.   sdmmc_cmdinit.CPSM             = SDIO_CPSM_ENABLE;
  553.   (void)SDIO_SendCommand(SDIOx, &sdmmc_cmdinit);
  554.  
  555.   /* Check for error conditions */
  556.   errorstate = SDMMC_GetCmdResp1(SDIOx, SDMMC_CMD_READ_SINGLE_BLOCK, SDIO_CMDTIMEOUT);
  557.  
  558.   return errorstate;
  559. }
  560.  
  561. /**
  562.   * @brief  Send the Read Multi Block command and check the response
  563.   * @param  SDIOx: Pointer to SDIO register base
  564.   * @retval HAL status
  565.   */
  566. uint32_t SDMMC_CmdReadMultiBlock(SDIO_TypeDef *SDIOx, uint32_t ReadAdd)
  567. {
  568.   SDIO_CmdInitTypeDef  sdmmc_cmdinit;
  569.   uint32_t errorstate;
  570.  
  571.   /* Set Block Size for Card */
  572.   sdmmc_cmdinit.Argument         = (uint32_t)ReadAdd;
  573.   sdmmc_cmdinit.CmdIndex         = SDMMC_CMD_READ_MULT_BLOCK;
  574.   sdmmc_cmdinit.Response         = SDIO_RESPONSE_SHORT;
  575.   sdmmc_cmdinit.WaitForInterrupt = SDIO_WAIT_NO;
  576.   sdmmc_cmdinit.CPSM             = SDIO_CPSM_ENABLE;
  577.   (void)SDIO_SendCommand(SDIOx, &sdmmc_cmdinit);
  578.  
  579.   /* Check for error conditions */
  580.   errorstate = SDMMC_GetCmdResp1(SDIOx, SDMMC_CMD_READ_MULT_BLOCK, SDIO_CMDTIMEOUT);
  581.  
  582.   return errorstate;
  583. }
  584.  
  585. /**
  586.   * @brief  Send the Write Single Block command and check the response
  587.   * @param  SDIOx: Pointer to SDIO register base
  588.   * @retval HAL status
  589.   */
  590. uint32_t SDMMC_CmdWriteSingleBlock(SDIO_TypeDef *SDIOx, uint32_t WriteAdd)
  591. {
  592.   SDIO_CmdInitTypeDef  sdmmc_cmdinit;
  593.   uint32_t errorstate;
  594.  
  595.   /* Set Block Size for Card */
  596.   sdmmc_cmdinit.Argument         = (uint32_t)WriteAdd;
  597.   sdmmc_cmdinit.CmdIndex         = SDMMC_CMD_WRITE_SINGLE_BLOCK;
  598.   sdmmc_cmdinit.Response         = SDIO_RESPONSE_SHORT;
  599.   sdmmc_cmdinit.WaitForInterrupt = SDIO_WAIT_NO;
  600.   sdmmc_cmdinit.CPSM             = SDIO_CPSM_ENABLE;
  601.   (void)SDIO_SendCommand(SDIOx, &sdmmc_cmdinit);
  602.  
  603.   /* Check for error conditions */
  604.   errorstate = SDMMC_GetCmdResp1(SDIOx, SDMMC_CMD_WRITE_SINGLE_BLOCK, SDIO_CMDTIMEOUT);
  605.  
  606.   return errorstate;
  607. }
  608.  
  609. /**
  610.   * @brief  Send the Write Multi Block command and check the response
  611.   * @param  SDIOx: Pointer to SDIO register base
  612.   * @retval HAL status
  613.   */
  614. uint32_t SDMMC_CmdWriteMultiBlock(SDIO_TypeDef *SDIOx, uint32_t WriteAdd)
  615. {
  616.   SDIO_CmdInitTypeDef  sdmmc_cmdinit;
  617.   uint32_t errorstate;
  618.  
  619.   /* Set Block Size for Card */
  620.   sdmmc_cmdinit.Argument         = (uint32_t)WriteAdd;
  621.   sdmmc_cmdinit.CmdIndex         = SDMMC_CMD_WRITE_MULT_BLOCK;
  622.   sdmmc_cmdinit.Response         = SDIO_RESPONSE_SHORT;
  623.   sdmmc_cmdinit.WaitForInterrupt = SDIO_WAIT_NO;
  624.   sdmmc_cmdinit.CPSM             = SDIO_CPSM_ENABLE;
  625.   (void)SDIO_SendCommand(SDIOx, &sdmmc_cmdinit);
  626.  
  627.   /* Check for error conditions */
  628.   errorstate = SDMMC_GetCmdResp1(SDIOx, SDMMC_CMD_WRITE_MULT_BLOCK, SDIO_CMDTIMEOUT);
  629.  
  630.   return errorstate;
  631. }
  632.  
  633. /**
  634.   * @brief  Send the Start Address Erase command for SD and check the response
  635.   * @param  SDIOx: Pointer to SDIO register base
  636.   * @retval HAL status
  637.   */
  638. uint32_t SDMMC_CmdSDEraseStartAdd(SDIO_TypeDef *SDIOx, uint32_t StartAdd)
  639. {
  640.   SDIO_CmdInitTypeDef  sdmmc_cmdinit;
  641.   uint32_t errorstate;
  642.  
  643.   /* Set Block Size for Card */
  644.   sdmmc_cmdinit.Argument         = (uint32_t)StartAdd;
  645.   sdmmc_cmdinit.CmdIndex         = SDMMC_CMD_SD_ERASE_GRP_START;
  646.   sdmmc_cmdinit.Response         = SDIO_RESPONSE_SHORT;
  647.   sdmmc_cmdinit.WaitForInterrupt = SDIO_WAIT_NO;
  648.   sdmmc_cmdinit.CPSM             = SDIO_CPSM_ENABLE;
  649.   (void)SDIO_SendCommand(SDIOx, &sdmmc_cmdinit);
  650.  
  651.   /* Check for error conditions */
  652.   errorstate = SDMMC_GetCmdResp1(SDIOx, SDMMC_CMD_SD_ERASE_GRP_START, SDIO_CMDTIMEOUT);
  653.  
  654.   return errorstate;
  655. }
  656.  
  657. /**
  658.   * @brief  Send the End Address Erase command for SD and check the response
  659.   * @param  SDIOx: Pointer to SDIO register base
  660.   * @retval HAL status
  661.   */
  662. uint32_t SDMMC_CmdSDEraseEndAdd(SDIO_TypeDef *SDIOx, uint32_t EndAdd)
  663. {
  664.   SDIO_CmdInitTypeDef  sdmmc_cmdinit;
  665.   uint32_t errorstate;
  666.  
  667.   /* Set Block Size for Card */
  668.   sdmmc_cmdinit.Argument         = (uint32_t)EndAdd;
  669.   sdmmc_cmdinit.CmdIndex         = SDMMC_CMD_SD_ERASE_GRP_END;
  670.   sdmmc_cmdinit.Response         = SDIO_RESPONSE_SHORT;
  671.   sdmmc_cmdinit.WaitForInterrupt = SDIO_WAIT_NO;
  672.   sdmmc_cmdinit.CPSM             = SDIO_CPSM_ENABLE;
  673.   (void)SDIO_SendCommand(SDIOx, &sdmmc_cmdinit);
  674.  
  675.   /* Check for error conditions */
  676.   errorstate = SDMMC_GetCmdResp1(SDIOx, SDMMC_CMD_SD_ERASE_GRP_END, SDIO_CMDTIMEOUT);
  677.  
  678.   return errorstate;
  679. }
  680.  
  681. /**
  682.   * @brief  Send the Start Address Erase command and check the response
  683.   * @param  SDIOx: Pointer to SDIO register base
  684.   * @retval HAL status
  685.   */
  686. uint32_t SDMMC_CmdEraseStartAdd(SDIO_TypeDef *SDIOx, uint32_t StartAdd)
  687. {
  688.   SDIO_CmdInitTypeDef  sdmmc_cmdinit;
  689.   uint32_t errorstate;
  690.  
  691.   /* Set Block Size for Card */
  692.   sdmmc_cmdinit.Argument         = (uint32_t)StartAdd;
  693.   sdmmc_cmdinit.CmdIndex         = SDMMC_CMD_ERASE_GRP_START;
  694.   sdmmc_cmdinit.Response         = SDIO_RESPONSE_SHORT;
  695.   sdmmc_cmdinit.WaitForInterrupt = SDIO_WAIT_NO;
  696.   sdmmc_cmdinit.CPSM             = SDIO_CPSM_ENABLE;
  697.   (void)SDIO_SendCommand(SDIOx, &sdmmc_cmdinit);
  698.  
  699.   /* Check for error conditions */
  700.   errorstate = SDMMC_GetCmdResp1(SDIOx, SDMMC_CMD_ERASE_GRP_START, SDIO_CMDTIMEOUT);
  701.  
  702.   return errorstate;
  703. }
  704.  
  705. /**
  706.   * @brief  Send the End Address Erase command and check the response
  707.   * @param  SDIOx: Pointer to SDIO register base
  708.   * @retval HAL status
  709.   */
  710. uint32_t SDMMC_CmdEraseEndAdd(SDIO_TypeDef *SDIOx, uint32_t EndAdd)
  711. {
  712.   SDIO_CmdInitTypeDef  sdmmc_cmdinit;
  713.   uint32_t errorstate;
  714.  
  715.   /* Set Block Size for Card */
  716.   sdmmc_cmdinit.Argument         = (uint32_t)EndAdd;
  717.   sdmmc_cmdinit.CmdIndex         = SDMMC_CMD_ERASE_GRP_END;
  718.   sdmmc_cmdinit.Response         = SDIO_RESPONSE_SHORT;
  719.   sdmmc_cmdinit.WaitForInterrupt = SDIO_WAIT_NO;
  720.   sdmmc_cmdinit.CPSM             = SDIO_CPSM_ENABLE;
  721.   (void)SDIO_SendCommand(SDIOx, &sdmmc_cmdinit);
  722.  
  723.   /* Check for error conditions */
  724.   errorstate = SDMMC_GetCmdResp1(SDIOx, SDMMC_CMD_ERASE_GRP_END, SDIO_CMDTIMEOUT);
  725.  
  726.   return errorstate;
  727. }
  728.  
  729. /**
  730.   * @brief  Send the Erase command and check the response
  731.   * @param  SDIOx: Pointer to SDIO register base
  732.   * @retval HAL status
  733.   */
  734. uint32_t SDMMC_CmdErase(SDIO_TypeDef *SDIOx)
  735. {
  736.   SDIO_CmdInitTypeDef  sdmmc_cmdinit;
  737.   uint32_t errorstate;
  738.  
  739.   /* Set Block Size for Card */
  740.   sdmmc_cmdinit.Argument         = 0U;
  741.   sdmmc_cmdinit.CmdIndex         = SDMMC_CMD_ERASE;
  742.   sdmmc_cmdinit.Response         = SDIO_RESPONSE_SHORT;
  743.   sdmmc_cmdinit.WaitForInterrupt = SDIO_WAIT_NO;
  744.   sdmmc_cmdinit.CPSM             = SDIO_CPSM_ENABLE;
  745.   (void)SDIO_SendCommand(SDIOx, &sdmmc_cmdinit);
  746.  
  747.   /* Check for error conditions */
  748.   errorstate = SDMMC_GetCmdResp1(SDIOx, SDMMC_CMD_ERASE, SDIO_MAXERASETIMEOUT);
  749.  
  750.   return errorstate;
  751. }
  752.  
  753. /**
  754.   * @brief  Send the Stop Transfer command and check the response.
  755.   * @param  SDIOx: Pointer to SDIO register base
  756.   * @retval HAL status
  757.   */
  758. uint32_t SDMMC_CmdStopTransfer(SDIO_TypeDef *SDIOx)
  759. {
  760.   SDIO_CmdInitTypeDef  sdmmc_cmdinit;
  761.   uint32_t errorstate;
  762.  
  763.   /* Send CMD12 STOP_TRANSMISSION  */
  764.   sdmmc_cmdinit.Argument         = 0U;
  765.   sdmmc_cmdinit.CmdIndex         = SDMMC_CMD_STOP_TRANSMISSION;
  766.   sdmmc_cmdinit.Response         = SDIO_RESPONSE_SHORT;
  767.   sdmmc_cmdinit.WaitForInterrupt = SDIO_WAIT_NO;
  768.   sdmmc_cmdinit.CPSM             = SDIO_CPSM_ENABLE;
  769.   (void)SDIO_SendCommand(SDIOx, &sdmmc_cmdinit);
  770.  
  771.   /* Check for error conditions */
  772.   errorstate = SDMMC_GetCmdResp1(SDIOx, SDMMC_CMD_STOP_TRANSMISSION, SDIO_STOPTRANSFERTIMEOUT);
  773.  
  774.   return errorstate;
  775. }
  776.  
  777. /**
  778.   * @brief  Send the Select Deselect command and check the response.
  779.   * @param  SDIOx: Pointer to SDIO register base
  780.   * @param  addr: Address of the card to be selected  
  781.   * @retval HAL status
  782.   */
  783. uint32_t SDMMC_CmdSelDesel(SDIO_TypeDef *SDIOx, uint64_t Addr)
  784. {
  785.   SDIO_CmdInitTypeDef  sdmmc_cmdinit;
  786.   uint32_t errorstate;
  787.  
  788.   /* Send CMD7 SDMMC_SEL_DESEL_CARD */
  789.   sdmmc_cmdinit.Argument         = (uint32_t)Addr;
  790.   sdmmc_cmdinit.CmdIndex         = SDMMC_CMD_SEL_DESEL_CARD;
  791.   sdmmc_cmdinit.Response         = SDIO_RESPONSE_SHORT;
  792.   sdmmc_cmdinit.WaitForInterrupt = SDIO_WAIT_NO;
  793.   sdmmc_cmdinit.CPSM             = SDIO_CPSM_ENABLE;
  794.   (void)SDIO_SendCommand(SDIOx, &sdmmc_cmdinit);
  795.  
  796.   /* Check for error conditions */
  797.   errorstate = SDMMC_GetCmdResp1(SDIOx, SDMMC_CMD_SEL_DESEL_CARD, SDIO_CMDTIMEOUT);
  798.  
  799.   return errorstate;
  800. }
  801.  
  802. /**
  803.   * @brief  Send the Go Idle State command and check the response.
  804.   * @param  SDIOx: Pointer to SDIO register base
  805.   * @retval HAL status
  806.   */
  807. uint32_t SDMMC_CmdGoIdleState(SDIO_TypeDef *SDIOx)
  808. {
  809.   SDIO_CmdInitTypeDef  sdmmc_cmdinit;
  810.   uint32_t errorstate;
  811.  
  812.   sdmmc_cmdinit.Argument         = 0U;
  813.   sdmmc_cmdinit.CmdIndex         = SDMMC_CMD_GO_IDLE_STATE;
  814.   sdmmc_cmdinit.Response         = SDIO_RESPONSE_NO;
  815.   sdmmc_cmdinit.WaitForInterrupt = SDIO_WAIT_NO;
  816.   sdmmc_cmdinit.CPSM             = SDIO_CPSM_ENABLE;
  817.   (void)SDIO_SendCommand(SDIOx, &sdmmc_cmdinit);
  818.  
  819.   /* Check for error conditions */
  820.   errorstate = SDMMC_GetCmdError(SDIOx);
  821.  
  822.   return errorstate;
  823. }
  824.  
  825. /**
  826.   * @brief  Send the Operating Condition command and check the response.
  827.   * @param  SDIOx: Pointer to SDIO register base
  828.   * @retval HAL status
  829.   */
  830. uint32_t SDMMC_CmdOperCond(SDIO_TypeDef *SDIOx)
  831. {
  832.   SDIO_CmdInitTypeDef  sdmmc_cmdinit;
  833.   uint32_t errorstate;
  834.  
  835.   /* Send CMD8 to verify SD card interface operating condition */
  836.   /* Argument: - [31:12]: Reserved (shall be set to '0')
  837.   - [11:8]: Supply Voltage (VHS) 0x1 (Range: 2.7-3.6 V)
  838.   - [7:0]: Check Pattern (recommended 0xAA) */
  839.   /* CMD Response: R7 */
  840.   sdmmc_cmdinit.Argument         = SDMMC_CHECK_PATTERN;
  841.   sdmmc_cmdinit.CmdIndex         = SDMMC_CMD_HS_SEND_EXT_CSD;
  842.   sdmmc_cmdinit.Response         = SDIO_RESPONSE_SHORT;
  843.   sdmmc_cmdinit.WaitForInterrupt = SDIO_WAIT_NO;
  844.   sdmmc_cmdinit.CPSM             = SDIO_CPSM_ENABLE;
  845.   (void)SDIO_SendCommand(SDIOx, &sdmmc_cmdinit);
  846.  
  847.   /* Check for error conditions */
  848.   errorstate = SDMMC_GetCmdResp7(SDIOx);
  849.  
  850.   return errorstate;
  851. }
  852.  
  853. /**
  854.   * @brief  Send the Application command to verify that that the next command
  855.   *         is an application specific com-mand rather than a standard command
  856.   *         and check the response.
  857.   * @param  SDIOx: Pointer to SDIO register base
  858.   * @param  Argument: Command Argument
  859.   * @retval HAL status
  860.   */
  861. uint32_t SDMMC_CmdAppCommand(SDIO_TypeDef *SDIOx, uint32_t Argument)
  862. {
  863.   SDIO_CmdInitTypeDef  sdmmc_cmdinit;
  864.   uint32_t errorstate;
  865.  
  866.   sdmmc_cmdinit.Argument         = (uint32_t)Argument;
  867.   sdmmc_cmdinit.CmdIndex         = SDMMC_CMD_APP_CMD;
  868.   sdmmc_cmdinit.Response         = SDIO_RESPONSE_SHORT;
  869.   sdmmc_cmdinit.WaitForInterrupt = SDIO_WAIT_NO;
  870.   sdmmc_cmdinit.CPSM             = SDIO_CPSM_ENABLE;
  871.   (void)SDIO_SendCommand(SDIOx, &sdmmc_cmdinit);
  872.  
  873.   /* Check for error conditions */
  874.   /* If there is a HAL_ERROR, it is a MMC card, else
  875.   it is a SD card: SD card 2.0 (voltage range mismatch)
  876.      or SD card 1.x */
  877.   errorstate = SDMMC_GetCmdResp1(SDIOx, SDMMC_CMD_APP_CMD, SDIO_CMDTIMEOUT);
  878.  
  879.   return errorstate;
  880. }
  881.  
  882. /**
  883.   * @brief  Send the command asking the accessed card to send its operating
  884.   *         condition register (OCR)
  885.   * @param  SDIOx: Pointer to SDIO register base
  886.   * @param  Argument: Command Argument
  887.   * @retval HAL status
  888.   */
  889. uint32_t SDMMC_CmdAppOperCommand(SDIO_TypeDef *SDIOx, uint32_t Argument)
  890. {
  891.   SDIO_CmdInitTypeDef  sdmmc_cmdinit;
  892.   uint32_t errorstate;
  893.  
  894.   sdmmc_cmdinit.Argument         = SDMMC_VOLTAGE_WINDOW_SD | Argument;
  895.   sdmmc_cmdinit.CmdIndex         = SDMMC_CMD_SD_APP_OP_COND;
  896.   sdmmc_cmdinit.Response         = SDIO_RESPONSE_SHORT;
  897.   sdmmc_cmdinit.WaitForInterrupt = SDIO_WAIT_NO;
  898.   sdmmc_cmdinit.CPSM             = SDIO_CPSM_ENABLE;
  899.   (void)SDIO_SendCommand(SDIOx, &sdmmc_cmdinit);
  900.  
  901.   /* Check for error conditions */
  902.   errorstate = SDMMC_GetCmdResp3(SDIOx);
  903.  
  904.   return errorstate;
  905. }
  906.  
  907. /**
  908.   * @brief  Send the Bus Width command and check the response.
  909.   * @param  SDIOx: Pointer to SDIO register base
  910.   * @param  BusWidth: BusWidth
  911.   * @retval HAL status
  912.   */
  913. uint32_t SDMMC_CmdBusWidth(SDIO_TypeDef *SDIOx, uint32_t BusWidth)
  914. {
  915.   SDIO_CmdInitTypeDef  sdmmc_cmdinit;
  916.   uint32_t errorstate;
  917.  
  918.   sdmmc_cmdinit.Argument         = (uint32_t)BusWidth;
  919.   sdmmc_cmdinit.CmdIndex         = SDMMC_CMD_APP_SD_SET_BUSWIDTH;
  920.   sdmmc_cmdinit.Response         = SDIO_RESPONSE_SHORT;
  921.   sdmmc_cmdinit.WaitForInterrupt = SDIO_WAIT_NO;
  922.   sdmmc_cmdinit.CPSM             = SDIO_CPSM_ENABLE;
  923.   (void)SDIO_SendCommand(SDIOx, &sdmmc_cmdinit);
  924.  
  925.   /* Check for error conditions */
  926.   errorstate = SDMMC_GetCmdResp1(SDIOx, SDMMC_CMD_APP_SD_SET_BUSWIDTH, SDIO_CMDTIMEOUT);
  927.  
  928.   return errorstate;
  929. }
  930.  
  931. /**
  932.   * @brief  Send the Send SCR command and check the response.
  933.   * @param  SDIOx: Pointer to SDIO register base
  934.   * @retval HAL status
  935.   */
  936. uint32_t SDMMC_CmdSendSCR(SDIO_TypeDef *SDIOx)
  937. {
  938.   SDIO_CmdInitTypeDef  sdmmc_cmdinit;
  939.   uint32_t errorstate;
  940.  
  941.   /* Send CMD51 SD_APP_SEND_SCR */
  942.   sdmmc_cmdinit.Argument         = 0U;
  943.   sdmmc_cmdinit.CmdIndex         = SDMMC_CMD_SD_APP_SEND_SCR;
  944.   sdmmc_cmdinit.Response         = SDIO_RESPONSE_SHORT;
  945.   sdmmc_cmdinit.WaitForInterrupt = SDIO_WAIT_NO;
  946.   sdmmc_cmdinit.CPSM             = SDIO_CPSM_ENABLE;
  947.   (void)SDIO_SendCommand(SDIOx, &sdmmc_cmdinit);
  948.  
  949.   /* Check for error conditions */
  950.   errorstate = SDMMC_GetCmdResp1(SDIOx, SDMMC_CMD_SD_APP_SEND_SCR, SDIO_CMDTIMEOUT);
  951.  
  952.   return errorstate;
  953. }
  954.  
  955. /**
  956.   * @brief  Send the Send CID command and check the response.
  957.   * @param  SDIOx: Pointer to SDIO register base
  958.   * @retval HAL status
  959.   */
  960. uint32_t SDMMC_CmdSendCID(SDIO_TypeDef *SDIOx)
  961. {
  962.   SDIO_CmdInitTypeDef  sdmmc_cmdinit;
  963.   uint32_t errorstate;
  964.  
  965.   /* Send CMD2 ALL_SEND_CID */
  966.   sdmmc_cmdinit.Argument         = 0U;
  967.   sdmmc_cmdinit.CmdIndex         = SDMMC_CMD_ALL_SEND_CID;
  968.   sdmmc_cmdinit.Response         = SDIO_RESPONSE_LONG;
  969.   sdmmc_cmdinit.WaitForInterrupt = SDIO_WAIT_NO;
  970.   sdmmc_cmdinit.CPSM             = SDIO_CPSM_ENABLE;
  971.   (void)SDIO_SendCommand(SDIOx, &sdmmc_cmdinit);
  972.  
  973.   /* Check for error conditions */
  974.   errorstate = SDMMC_GetCmdResp2(SDIOx);
  975.  
  976.   return errorstate;
  977. }
  978.  
  979. /**
  980.   * @brief  Send the Send CSD command and check the response.
  981.   * @param  SDIOx: Pointer to SDIO register base
  982.   * @param  Argument: Command Argument
  983.   * @retval HAL status
  984.   */
  985. uint32_t SDMMC_CmdSendCSD(SDIO_TypeDef *SDIOx, uint32_t Argument)
  986. {
  987.   SDIO_CmdInitTypeDef  sdmmc_cmdinit;
  988.   uint32_t errorstate;
  989.  
  990.   /* Send CMD9 SEND_CSD */
  991.   sdmmc_cmdinit.Argument         = Argument;
  992.   sdmmc_cmdinit.CmdIndex         = SDMMC_CMD_SEND_CSD;
  993.   sdmmc_cmdinit.Response         = SDIO_RESPONSE_LONG;
  994.   sdmmc_cmdinit.WaitForInterrupt = SDIO_WAIT_NO;
  995.   sdmmc_cmdinit.CPSM             = SDIO_CPSM_ENABLE;
  996.   (void)SDIO_SendCommand(SDIOx, &sdmmc_cmdinit);
  997.  
  998.   /* Check for error conditions */
  999.   errorstate = SDMMC_GetCmdResp2(SDIOx);
  1000.  
  1001.   return errorstate;
  1002. }
  1003.  
  1004. /**
  1005.   * @brief  Send the Send CSD command and check the response.
  1006.   * @param  SDIOx: Pointer to SDIO register base
  1007.   * @param  pRCA: Card RCA  
  1008.   * @retval HAL status
  1009.   */
  1010. uint32_t SDMMC_CmdSetRelAdd(SDIO_TypeDef *SDIOx, uint16_t *pRCA)
  1011. {
  1012.   SDIO_CmdInitTypeDef  sdmmc_cmdinit;
  1013.   uint32_t errorstate;
  1014.  
  1015.   /* Send CMD3 SD_CMD_SET_REL_ADDR */
  1016.   sdmmc_cmdinit.Argument         = 0U;
  1017.   sdmmc_cmdinit.CmdIndex         = SDMMC_CMD_SET_REL_ADDR;
  1018.   sdmmc_cmdinit.Response         = SDIO_RESPONSE_SHORT;
  1019.   sdmmc_cmdinit.WaitForInterrupt = SDIO_WAIT_NO;
  1020.   sdmmc_cmdinit.CPSM             = SDIO_CPSM_ENABLE;
  1021.   (void)SDIO_SendCommand(SDIOx, &sdmmc_cmdinit);
  1022.  
  1023.   /* Check for error conditions */
  1024.   errorstate = SDMMC_GetCmdResp6(SDIOx, SDMMC_CMD_SET_REL_ADDR, pRCA);
  1025.  
  1026.   return errorstate;
  1027. }
  1028.  
  1029. /**
  1030.   * @brief  Send the Status command and check the response.
  1031.   * @param  SDIOx: Pointer to SDIO register base
  1032.   * @param  Argument: Command Argument
  1033.   * @retval HAL status
  1034.   */
  1035. uint32_t SDMMC_CmdSendStatus(SDIO_TypeDef *SDIOx, uint32_t Argument)
  1036. {
  1037.   SDIO_CmdInitTypeDef  sdmmc_cmdinit;
  1038.   uint32_t errorstate;
  1039.  
  1040.   sdmmc_cmdinit.Argument         = Argument;
  1041.   sdmmc_cmdinit.CmdIndex         = SDMMC_CMD_SEND_STATUS;
  1042.   sdmmc_cmdinit.Response         = SDIO_RESPONSE_SHORT;
  1043.   sdmmc_cmdinit.WaitForInterrupt = SDIO_WAIT_NO;
  1044.   sdmmc_cmdinit.CPSM             = SDIO_CPSM_ENABLE;
  1045.   (void)SDIO_SendCommand(SDIOx, &sdmmc_cmdinit);
  1046.  
  1047.   /* Check for error conditions */
  1048.   errorstate = SDMMC_GetCmdResp1(SDIOx, SDMMC_CMD_SEND_STATUS, SDIO_CMDTIMEOUT);
  1049.  
  1050.   return errorstate;
  1051. }
  1052.  
  1053. /**
  1054.   * @brief  Send the Status register command and check the response.
  1055.   * @param  SDIOx: Pointer to SDIO register base
  1056.   * @retval HAL status
  1057.   */
  1058. uint32_t SDMMC_CmdStatusRegister(SDIO_TypeDef *SDIOx)
  1059. {
  1060.   SDIO_CmdInitTypeDef  sdmmc_cmdinit;
  1061.   uint32_t errorstate;
  1062.  
  1063.   sdmmc_cmdinit.Argument         = 0U;
  1064.   sdmmc_cmdinit.CmdIndex         = SDMMC_CMD_SD_APP_STATUS;
  1065.   sdmmc_cmdinit.Response         = SDIO_RESPONSE_SHORT;
  1066.   sdmmc_cmdinit.WaitForInterrupt = SDIO_WAIT_NO;
  1067.   sdmmc_cmdinit.CPSM             = SDIO_CPSM_ENABLE;
  1068.   (void)SDIO_SendCommand(SDIOx, &sdmmc_cmdinit);
  1069.  
  1070.   /* Check for error conditions */
  1071.   errorstate = SDMMC_GetCmdResp1(SDIOx, SDMMC_CMD_SD_APP_STATUS, SDIO_CMDTIMEOUT);
  1072.  
  1073.   return errorstate;
  1074. }
  1075.  
  1076. /**
  1077.   * @brief  Sends host capacity support information and activates the card's
  1078.   *         initialization process. Send SDMMC_CMD_SEND_OP_COND command
  1079.   * @param  SDIOx: Pointer to SDIO register base
  1080.   * @parame Argument: Argument used for the command
  1081.   * @retval HAL status
  1082.   */
  1083. uint32_t SDMMC_CmdOpCondition(SDIO_TypeDef *SDIOx, uint32_t Argument)
  1084. {
  1085.   SDIO_CmdInitTypeDef  sdmmc_cmdinit;
  1086.   uint32_t errorstate;
  1087.  
  1088.   sdmmc_cmdinit.Argument         = Argument;
  1089.   sdmmc_cmdinit.CmdIndex         = SDMMC_CMD_SEND_OP_COND;
  1090.   sdmmc_cmdinit.Response         = SDIO_RESPONSE_SHORT;
  1091.   sdmmc_cmdinit.WaitForInterrupt = SDIO_WAIT_NO;
  1092.   sdmmc_cmdinit.CPSM             = SDIO_CPSM_ENABLE;
  1093.   (void)SDIO_SendCommand(SDIOx, &sdmmc_cmdinit);
  1094.  
  1095.   /* Check for error conditions */
  1096.   errorstate = SDMMC_GetCmdResp3(SDIOx);
  1097.  
  1098.   return errorstate;
  1099. }
  1100.  
  1101. /**
  1102.   * @brief  Checks switchable function and switch card function. SDMMC_CMD_HS_SWITCH comand
  1103.   * @param  SDIOx: Pointer to SDIO register base
  1104.   * @parame Argument: Argument used for the command
  1105.   * @retval HAL status
  1106.   */
  1107. uint32_t SDMMC_CmdSwitch(SDIO_TypeDef *SDIOx, uint32_t Argument)
  1108. {
  1109.   SDIO_CmdInitTypeDef  sdmmc_cmdinit;
  1110.   uint32_t errorstate;
  1111.  
  1112.   /* Send CMD6 to activate SDR50 Mode and Power Limit 1.44W */
  1113.   /* CMD Response: R1 */
  1114.   sdmmc_cmdinit.Argument         = Argument; /* SDMMC_SDR25_SWITCH_PATTERN */
  1115.   sdmmc_cmdinit.CmdIndex         = SDMMC_CMD_HS_SWITCH;
  1116.   sdmmc_cmdinit.Response         = SDIO_RESPONSE_SHORT;
  1117.   sdmmc_cmdinit.WaitForInterrupt = SDIO_WAIT_NO;
  1118.   sdmmc_cmdinit.CPSM             = SDIO_CPSM_ENABLE;
  1119.   (void)SDIO_SendCommand(SDIOx, &sdmmc_cmdinit);
  1120.  
  1121.   /* Check for error conditions */
  1122.   errorstate = SDMMC_GetCmdResp1(SDIOx, SDMMC_CMD_HS_SWITCH, SDIO_CMDTIMEOUT);
  1123.  
  1124.   return errorstate;
  1125. }
  1126.  
  1127. /**
  1128.   * @}
  1129.   */
  1130.  
  1131. /* Private function ----------------------------------------------------------*/  
  1132. /** @addtogroup SD_Private_Functions
  1133.   * @{
  1134.   */
  1135.    
  1136. /**
  1137.   * @brief  Checks for error conditions for CMD0.
  1138.   * @param  hsd: SD handle
  1139.   * @retval SD Card error state
  1140.   */
  1141. static uint32_t SDMMC_GetCmdError(SDIO_TypeDef *SDIOx)
  1142. {
  1143.   /* 8 is the number of required instructions cycles for the below loop statement.
  1144.   The SDIO_CMDTIMEOUT is expressed in ms */
  1145.   register uint32_t count = SDIO_CMDTIMEOUT * (SystemCoreClock / 8U /1000U);
  1146.  
  1147.   do
  1148.   {
  1149.     if (count-- == 0U)
  1150.     {
  1151.       return SDMMC_ERROR_TIMEOUT;
  1152.     }
  1153.    
  1154.   }while(!__SDIO_GET_FLAG(SDIOx, SDIO_FLAG_CMDSENT));
  1155.  
  1156.   /* Clear all the static flags */
  1157.   __SDIO_CLEAR_FLAG(SDIOx, SDIO_STATIC_CMD_FLAGS);
  1158.  
  1159.   return SDMMC_ERROR_NONE;
  1160. }
  1161.  
  1162. /**
  1163.   * @brief  Checks for error conditions for R1 response.
  1164.   * @param  hsd: SD handle
  1165.   * @param  SD_CMD: The sent command index  
  1166.   * @retval SD Card error state
  1167.   */
  1168. static uint32_t SDMMC_GetCmdResp1(SDIO_TypeDef *SDIOx, uint8_t SD_CMD, uint32_t Timeout)
  1169. {
  1170.   uint32_t response_r1;
  1171.   uint32_t sta_reg;
  1172.  
  1173.   /* 8 is the number of required instructions cycles for the below loop statement.
  1174.   The Timeout is expressed in ms */
  1175.   register uint32_t count = Timeout * (SystemCoreClock / 8U /1000U);
  1176.  
  1177.   do
  1178.   {
  1179.     if (count-- == 0U)
  1180.     {
  1181.       return SDMMC_ERROR_TIMEOUT;
  1182.     }
  1183.     sta_reg = SDIOx->STA;
  1184.   }while(((sta_reg & (SDIO_FLAG_CCRCFAIL | SDIO_FLAG_CMDREND | SDIO_FLAG_CTIMEOUT)) == 0U) ||
  1185.          ((sta_reg & SDIO_FLAG_CMDACT) != 0U ));
  1186.    
  1187.   if(__SDIO_GET_FLAG(SDIOx, SDIO_FLAG_CTIMEOUT))
  1188.   {
  1189.     __SDIO_CLEAR_FLAG(SDIOx, SDIO_FLAG_CTIMEOUT);
  1190.    
  1191.     return SDMMC_ERROR_CMD_RSP_TIMEOUT;
  1192.   }
  1193.   else if(__SDIO_GET_FLAG(SDIOx, SDIO_FLAG_CCRCFAIL))
  1194.   {
  1195.     __SDIO_CLEAR_FLAG(SDIOx, SDIO_FLAG_CCRCFAIL);
  1196.    
  1197.     return SDMMC_ERROR_CMD_CRC_FAIL;
  1198.   }
  1199.   else
  1200.   {
  1201.     /* Nothing to do */
  1202.   }
  1203.  
  1204.   /* Clear all the static flags */
  1205.   __SDIO_CLEAR_FLAG(SDIOx, SDIO_STATIC_CMD_FLAGS);
  1206.  
  1207.   /* Check response received is of desired command */
  1208.   if(SDIO_GetCommandResponse(SDIOx) != SD_CMD)
  1209.   {
  1210.     return SDMMC_ERROR_CMD_CRC_FAIL;
  1211.   }
  1212.  
  1213.   /* We have received response, retrieve it for analysis  */
  1214.   response_r1 = SDIO_GetResponse(SDIOx, SDIO_RESP1);
  1215.  
  1216.   if((response_r1 & SDMMC_OCR_ERRORBITS) == SDMMC_ALLZERO)
  1217.   {
  1218.     return SDMMC_ERROR_NONE;
  1219.   }
  1220.   else if((response_r1 & SDMMC_OCR_ADDR_OUT_OF_RANGE) == SDMMC_OCR_ADDR_OUT_OF_RANGE)
  1221.   {
  1222.     return SDMMC_ERROR_ADDR_OUT_OF_RANGE;
  1223.   }
  1224.   else if((response_r1 & SDMMC_OCR_ADDR_MISALIGNED) == SDMMC_OCR_ADDR_MISALIGNED)
  1225.   {
  1226.     return SDMMC_ERROR_ADDR_MISALIGNED;
  1227.   }
  1228.   else if((response_r1 & SDMMC_OCR_BLOCK_LEN_ERR) == SDMMC_OCR_BLOCK_LEN_ERR)
  1229.   {
  1230.     return SDMMC_ERROR_BLOCK_LEN_ERR;
  1231.   }
  1232.   else if((response_r1 & SDMMC_OCR_ERASE_SEQ_ERR) == SDMMC_OCR_ERASE_SEQ_ERR)
  1233.   {
  1234.     return SDMMC_ERROR_ERASE_SEQ_ERR;
  1235.   }
  1236.   else if((response_r1 & SDMMC_OCR_BAD_ERASE_PARAM) == SDMMC_OCR_BAD_ERASE_PARAM)
  1237.   {
  1238.     return SDMMC_ERROR_BAD_ERASE_PARAM;
  1239.   }
  1240.   else if((response_r1 & SDMMC_OCR_WRITE_PROT_VIOLATION) == SDMMC_OCR_WRITE_PROT_VIOLATION)
  1241.   {
  1242.     return SDMMC_ERROR_WRITE_PROT_VIOLATION;
  1243.   }
  1244.   else if((response_r1 & SDMMC_OCR_LOCK_UNLOCK_FAILED) == SDMMC_OCR_LOCK_UNLOCK_FAILED)
  1245.   {
  1246.     return SDMMC_ERROR_LOCK_UNLOCK_FAILED;
  1247.   }
  1248.   else if((response_r1 & SDMMC_OCR_COM_CRC_FAILED) == SDMMC_OCR_COM_CRC_FAILED)
  1249.   {
  1250.     return SDMMC_ERROR_COM_CRC_FAILED;
  1251.   }
  1252.   else if((response_r1 & SDMMC_OCR_ILLEGAL_CMD) == SDMMC_OCR_ILLEGAL_CMD)
  1253.   {
  1254.     return SDMMC_ERROR_ILLEGAL_CMD;
  1255.   }
  1256.   else if((response_r1 & SDMMC_OCR_CARD_ECC_FAILED) == SDMMC_OCR_CARD_ECC_FAILED)
  1257.   {
  1258.     return SDMMC_ERROR_CARD_ECC_FAILED;
  1259.   }
  1260.   else if((response_r1 & SDMMC_OCR_CC_ERROR) == SDMMC_OCR_CC_ERROR)
  1261.   {
  1262.     return SDMMC_ERROR_CC_ERR;
  1263.   }
  1264.   else if((response_r1 & SDMMC_OCR_STREAM_READ_UNDERRUN) == SDMMC_OCR_STREAM_READ_UNDERRUN)
  1265.   {
  1266.     return SDMMC_ERROR_STREAM_READ_UNDERRUN;
  1267.   }
  1268.   else if((response_r1 & SDMMC_OCR_STREAM_WRITE_OVERRUN) == SDMMC_OCR_STREAM_WRITE_OVERRUN)
  1269.   {
  1270.     return SDMMC_ERROR_STREAM_WRITE_OVERRUN;
  1271.   }
  1272.   else if((response_r1 & SDMMC_OCR_CID_CSD_OVERWRITE) == SDMMC_OCR_CID_CSD_OVERWRITE)
  1273.   {
  1274.     return SDMMC_ERROR_CID_CSD_OVERWRITE;
  1275.   }
  1276.   else if((response_r1 & SDMMC_OCR_WP_ERASE_SKIP) == SDMMC_OCR_WP_ERASE_SKIP)
  1277.   {
  1278.     return SDMMC_ERROR_WP_ERASE_SKIP;
  1279.   }
  1280.   else if((response_r1 & SDMMC_OCR_CARD_ECC_DISABLED) == SDMMC_OCR_CARD_ECC_DISABLED)
  1281.   {
  1282.     return SDMMC_ERROR_CARD_ECC_DISABLED;
  1283.   }
  1284.   else if((response_r1 & SDMMC_OCR_ERASE_RESET) == SDMMC_OCR_ERASE_RESET)
  1285.   {
  1286.     return SDMMC_ERROR_ERASE_RESET;
  1287.   }
  1288.   else if((response_r1 & SDMMC_OCR_AKE_SEQ_ERROR) == SDMMC_OCR_AKE_SEQ_ERROR)
  1289.   {
  1290.     return SDMMC_ERROR_AKE_SEQ_ERR;
  1291.   }
  1292.   else
  1293.   {
  1294.     return SDMMC_ERROR_GENERAL_UNKNOWN_ERR;
  1295.   }
  1296. }
  1297.  
  1298. /**
  1299.   * @brief  Checks for error conditions for R2 (CID or CSD) response.
  1300.   * @param  hsd: SD handle
  1301.   * @retval SD Card error state
  1302.   */
  1303. static uint32_t SDMMC_GetCmdResp2(SDIO_TypeDef *SDIOx)
  1304. {
  1305.   uint32_t sta_reg;
  1306.   /* 8 is the number of required instructions cycles for the below loop statement.
  1307.   The SDIO_CMDTIMEOUT is expressed in ms */
  1308.   register uint32_t count = SDIO_CMDTIMEOUT * (SystemCoreClock / 8U /1000U);
  1309.  
  1310.   do
  1311.   {
  1312.     if (count-- == 0U)
  1313.     {
  1314.       return SDMMC_ERROR_TIMEOUT;
  1315.     }
  1316.     sta_reg = SDIOx->STA;
  1317.   }while(((sta_reg & (SDIO_FLAG_CCRCFAIL | SDIO_FLAG_CMDREND | SDIO_FLAG_CTIMEOUT)) == 0U) ||
  1318.          ((sta_reg & SDIO_FLAG_CMDACT) != 0U ));
  1319.    
  1320.   if (__SDIO_GET_FLAG(SDIOx, SDIO_FLAG_CTIMEOUT))
  1321.   {
  1322.     __SDIO_CLEAR_FLAG(SDIOx, SDIO_FLAG_CTIMEOUT);
  1323.    
  1324.     return SDMMC_ERROR_CMD_RSP_TIMEOUT;
  1325.   }
  1326.   else if (__SDIO_GET_FLAG(SDIOx, SDIO_FLAG_CCRCFAIL))
  1327.   {
  1328.     __SDIO_CLEAR_FLAG(SDIOx, SDIO_FLAG_CCRCFAIL);
  1329.    
  1330.     return SDMMC_ERROR_CMD_CRC_FAIL;
  1331.   }
  1332.   else
  1333.   {
  1334.     /* No error flag set */
  1335.     /* Clear all the static flags */
  1336.     __SDIO_CLEAR_FLAG(SDIOx, SDIO_STATIC_CMD_FLAGS);
  1337.   }
  1338.  
  1339.   return SDMMC_ERROR_NONE;
  1340. }
  1341.  
  1342. /**
  1343.   * @brief  Checks for error conditions for R3 (OCR) response.
  1344.   * @param  hsd: SD handle
  1345.   * @retval SD Card error state
  1346.   */
  1347. static uint32_t SDMMC_GetCmdResp3(SDIO_TypeDef *SDIOx)
  1348. {
  1349.   uint32_t sta_reg;
  1350.   /* 8 is the number of required instructions cycles for the below loop statement.
  1351.   The SDIO_CMDTIMEOUT is expressed in ms */
  1352.   register uint32_t count = SDIO_CMDTIMEOUT * (SystemCoreClock / 8U /1000U);
  1353.  
  1354.   do
  1355.   {
  1356.     if (count-- == 0U)
  1357.     {
  1358.       return SDMMC_ERROR_TIMEOUT;
  1359.     }
  1360.     sta_reg = SDIOx->STA;
  1361.   }while(((sta_reg & (SDIO_FLAG_CCRCFAIL | SDIO_FLAG_CMDREND | SDIO_FLAG_CTIMEOUT)) == 0U) ||
  1362.          ((sta_reg & SDIO_FLAG_CMDACT) != 0U ));
  1363.    
  1364.   if(__SDIO_GET_FLAG(SDIOx, SDIO_FLAG_CTIMEOUT))
  1365.   {
  1366.     __SDIO_CLEAR_FLAG(SDIOx, SDIO_FLAG_CTIMEOUT);
  1367.    
  1368.     return SDMMC_ERROR_CMD_RSP_TIMEOUT;
  1369.   }
  1370.   else
  1371.   {  
  1372.     /* Clear all the static flags */
  1373.     __SDIO_CLEAR_FLAG(SDIOx, SDIO_STATIC_CMD_FLAGS);
  1374.   }
  1375.  
  1376.   return SDMMC_ERROR_NONE;
  1377. }
  1378.  
  1379. /**
  1380.   * @brief  Checks for error conditions for R6 (RCA) response.
  1381.   * @param  hsd: SD handle
  1382.   * @param  SD_CMD: The sent command index
  1383.   * @param  pRCA: Pointer to the variable that will contain the SD card relative
  1384.   *         address RCA  
  1385.   * @retval SD Card error state
  1386.   */
  1387. static uint32_t SDMMC_GetCmdResp6(SDIO_TypeDef *SDIOx, uint8_t SD_CMD, uint16_t *pRCA)
  1388. {
  1389.   uint32_t response_r1;
  1390.   uint32_t sta_reg;
  1391.  
  1392.   /* 8 is the number of required instructions cycles for the below loop statement.
  1393.   The SDIO_CMDTIMEOUT is expressed in ms */
  1394.   register uint32_t count = SDIO_CMDTIMEOUT * (SystemCoreClock / 8U /1000U);
  1395.  
  1396.   do
  1397.   {
  1398.     if (count-- == 0U)
  1399.     {
  1400.       return SDMMC_ERROR_TIMEOUT;
  1401.     }
  1402.     sta_reg = SDIOx->STA;
  1403.   }while(((sta_reg & (SDIO_FLAG_CCRCFAIL | SDIO_FLAG_CMDREND | SDIO_FLAG_CTIMEOUT)) == 0U) ||
  1404.          ((sta_reg & SDIO_FLAG_CMDACT) != 0U ));
  1405.    
  1406.   if(__SDIO_GET_FLAG(SDIOx, SDIO_FLAG_CTIMEOUT))
  1407.   {
  1408.     __SDIO_CLEAR_FLAG(SDIOx, SDIO_FLAG_CTIMEOUT);
  1409.    
  1410.     return SDMMC_ERROR_CMD_RSP_TIMEOUT;
  1411.   }
  1412.   else if(__SDIO_GET_FLAG(SDIOx, SDIO_FLAG_CCRCFAIL))
  1413.   {
  1414.     __SDIO_CLEAR_FLAG(SDIOx, SDIO_FLAG_CCRCFAIL);
  1415.    
  1416.     return SDMMC_ERROR_CMD_CRC_FAIL;
  1417.   }
  1418.   else
  1419.   {
  1420.     /* Nothing to do */
  1421.   }
  1422.  
  1423.   /* Check response received is of desired command */
  1424.   if(SDIO_GetCommandResponse(SDIOx) != SD_CMD)
  1425.   {
  1426.     return SDMMC_ERROR_CMD_CRC_FAIL;
  1427.   }
  1428.  
  1429.   /* Clear all the static flags */
  1430.   __SDIO_CLEAR_FLAG(SDIOx, SDIO_STATIC_CMD_FLAGS);
  1431.  
  1432.   /* We have received response, retrieve it.  */
  1433.   response_r1 = SDIO_GetResponse(SDIOx, SDIO_RESP1);
  1434.  
  1435.   if((response_r1 & (SDMMC_R6_GENERAL_UNKNOWN_ERROR | SDMMC_R6_ILLEGAL_CMD | SDMMC_R6_COM_CRC_FAILED)) == SDMMC_ALLZERO)
  1436.   {
  1437.     *pRCA = (uint16_t) (response_r1 >> 16);
  1438.    
  1439.     return SDMMC_ERROR_NONE;
  1440.   }
  1441.   else if((response_r1 & SDMMC_R6_ILLEGAL_CMD) == SDMMC_R6_ILLEGAL_CMD)
  1442.   {
  1443.     return SDMMC_ERROR_ILLEGAL_CMD;
  1444.   }
  1445.   else if((response_r1 & SDMMC_R6_COM_CRC_FAILED) == SDMMC_R6_COM_CRC_FAILED)
  1446.   {
  1447.     return SDMMC_ERROR_COM_CRC_FAILED;
  1448.   }
  1449.   else
  1450.   {
  1451.     return SDMMC_ERROR_GENERAL_UNKNOWN_ERR;
  1452.   }
  1453. }
  1454.  
  1455. /**
  1456.   * @brief  Checks for error conditions for R7 response.
  1457.   * @param  hsd: SD handle
  1458.   * @retval SD Card error state
  1459.   */
  1460. static uint32_t SDMMC_GetCmdResp7(SDIO_TypeDef *SDIOx)
  1461. {
  1462.   uint32_t sta_reg;
  1463.   /* 8 is the number of required instructions cycles for the below loop statement.
  1464.   The SDIO_CMDTIMEOUT is expressed in ms */
  1465.   register uint32_t count = SDIO_CMDTIMEOUT * (SystemCoreClock / 8U /1000U);
  1466.  
  1467.   do
  1468.   {
  1469.     if (count-- == 0U)
  1470.     {
  1471.       return SDMMC_ERROR_TIMEOUT;
  1472.     }
  1473.     sta_reg = SDIOx->STA;
  1474.   }while(((sta_reg & (SDIO_FLAG_CCRCFAIL | SDIO_FLAG_CMDREND | SDIO_FLAG_CTIMEOUT)) == 0U) ||
  1475.          ((sta_reg & SDIO_FLAG_CMDACT) != 0U ));
  1476.    
  1477.   if(__SDIO_GET_FLAG(SDIOx, SDIO_FLAG_CTIMEOUT))
  1478.   {
  1479.     /* Card is SD V2.0 compliant */
  1480.     __SDIO_CLEAR_FLAG(SDIOx, SDIO_FLAG_CTIMEOUT);
  1481.    
  1482.     return SDMMC_ERROR_CMD_RSP_TIMEOUT;
  1483.   }
  1484.   else if(__SDIO_GET_FLAG(SDIOx, SDIO_FLAG_CCRCFAIL))
  1485.   {
  1486.     /* Card is SD V2.0 compliant */
  1487.     __SDIO_CLEAR_FLAG(SDIOx, SDIO_FLAG_CCRCFAIL);
  1488.    
  1489.     return SDMMC_ERROR_CMD_CRC_FAIL;
  1490.   }
  1491.   else
  1492.   {
  1493.     /* Nothing to do */
  1494.   }
  1495.  
  1496.   if(__SDIO_GET_FLAG(SDIOx, SDIO_FLAG_CMDREND))
  1497.   {
  1498.     /* Card is SD V2.0 compliant */
  1499.     __SDIO_CLEAR_FLAG(SDIOx, SDIO_FLAG_CMDREND);
  1500.   }
  1501.  
  1502.   return SDMMC_ERROR_NONE;
  1503.  
  1504. }
  1505.  
  1506. /**
  1507.   * @}
  1508.   */
  1509.  
  1510. #endif /* HAL_SD_MODULE_ENABLED || HAL_MMC_MODULE_ENABLED */
  1511. /**
  1512.   * @}
  1513.   */
  1514.  
  1515. /**
  1516.   * @}
  1517.   */
  1518.  
  1519. #endif /* SDIO */
  1520.  
  1521. /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
  1522.