if (NewState != DISABLE)
  {
    /* Enable the SDIO interrupts */
    SDIO->MASK |= SDIO_IT;
  }
  else
  {
    /* Disable the SDIO interrupts */
    SDIO->MASK &= ~SDIO_IT;
  } 
}

/*******************************************************************************
* Function Name  : SDIO_DMACmd
* Description    : Enables or disables the SDIO DMA request.
* Input          : NewState: new state of the selected SDIO DMA request.
*                  This parameter can be: ENABLE or DISABLE.
* Output         : None
* Return         : None
*******************************************************************************/
void SDIO_DMACmd(FunctionalState NewState)
{
  /* Check the parameters */
  assert_param(IS_FUNCTIONAL_STATE(NewState));
  
  *(vu32 *) DCTRL_DMAEN_BB = (u32)NewState;
}

/*******************************************************************************
* Function Name  : SDIO_SendCommand
* Description    : Initializes the SDIO Command according to the specified 
*                  parameters in the SDIO_CmdInitStruct and send the command.
* Input          : SDIO_CmdInitStruct : pointer to a SDIO_CmdInitTypeDef 
*                  structure that contains the configuration information 
*                  for the SDIO command.
* Output         : None
* Return         : None
*******************************************************************************/
void SDIO_SendCommand(SDIO_CmdInitTypeDef *SDIO_CmdInitStruct)
{
  u32 tmpreg = 0;
  
  /* Check the parameters */
  assert_param(IS_SDIO_CMD_INDEX(SDIO_CmdInitStruct->SDIO_CmdIndex));
  assert_param(IS_SDIO_RESPONSE(SDIO_CmdInitStruct->SDIO_Response));
  assert_param(IS_SDIO_WAIT(SDIO_CmdInitStruct->SDIO_Wait));
  assert_param(IS_SDIO_CPSM(SDIO_CmdInitStruct->SDIO_CPSM));
  
/*---------------------------- SDIO ARG Configuration ------------------------*/
  /* Set the SDIO Argument value */
  SDIO->ARG = SDIO_CmdInitStruct->SDIO_Argument;
  
/*---------------------------- SDIO CMD Configuration ------------------------*/  
  /* Get the SDIO CMD value */
  tmpreg = SDIO->CMD;

  /* Clear CMDINDEX, WAITRESP, WAITINT, WAITPEND, CPSMEN bits */
  tmpreg &= CMD_CLEAR_MASK;
  /* Set CMDINDEX bits according to SDIO_CmdIndex value */
  /* Set WAITRESP bits according to SDIO_Response value */
  /* Set WAITINT and WAITPEND bits according to SDIO_Wait value */
  /* Set CPSMEN bits according to SDIO_CPSM value */
  tmpreg |= (u32)SDIO_CmdInitStruct->SDIO_CmdIndex | SDIO_CmdInitStruct->SDIO_Response
           | SDIO_CmdInitStruct->SDIO_Wait | SDIO_CmdInitStruct->SDIO_CPSM;
  
  /* Write to SDIO CMD */
  SDIO->CMD = tmpreg;
}

/*******************************************************************************
* Function Name  : SDIO_CmdStructInit
* Description    : Fills each SDIO_CmdInitStruct member with its default value.
* Input          : SDIO_CmdInitStruct: pointer to an SDIO_CmdInitTypeDef 
*                  structure which will be initialized.
* Output         : None
* Return         : None
*******************************************************************************/
void SDIO_CmdStructInit(SDIO_CmdInitTypeDef* SDIO_CmdInitStruct)
{
  /* SDIO_CmdInitStruct members default value */
  SDIO_CmdInitStruct->SDIO_Argument = 0x00;
  SDIO_CmdInitStruct->SDIO_CmdIndex = 0x00;
  SDIO_CmdInitStruct->SDIO_Response = SDIO_Response_No;
  SDIO_CmdInitStruct->SDIO_Wait = SDIO_Wait_No;
  SDIO_CmdInitStruct->SDIO_CPSM = SDIO_CPSM_Disable;
}

/*******************************************************************************
* Function Name  : SDIO_GetCommandResponse
* Description    : Returns command index of last command for which response 
*                  received.
* Input          : None
* Output         : None
* Return         : Returns the command index of the last command response received.
*******************************************************************************/
u8 SDIO_GetCommandResponse(void)
{
  return (u8)(SDIO->RESPCMD);
}

/*******************************************************************************
* Function Name  : SDIO_GetResponse
* Description    : Returns response received from the card for the last command.
* Input          : - SDIO_RESP: Specifies the SDIO response register. 
*                     This parameter can be one of the following values:
*                       - SDIO_RESP1: Response Register 1
*                       - SDIO_RESP2: Response Register 2
*                       - SDIO_RESP3: Response Register 3
*                       - SDIO_RESP4: Response Register 4                       
* Output         : None
* Return         : The Corresponding response register value.
*******************************************************************************/
u32 SDIO_GetResponse(u32 SDIO_RESP)
{
  /* Check the parameters */
  assert_param(IS_SDIO_RESP(SDIO_RESP));
  
  return (*(vu32 *)(SDIO_RESP_ADDR + SDIO_RESP)); 
}

/*******************************************************************************
* Function Name  : SDIO_DataConfig
* Description    : Initializes the SDIO data path according to the specified 
*                  parameters in the SDIO_DataInitStruct.
* Input          : SDIO_DataInitStruct : pointer to a SDIO_DataInitTypeDef 
*                  structure that contains the configuration information 
*                  for the SDIO command.
* Output         : None
* Return         : None
*******************************************************************************/
void SDIO_DataConfig(SDIO_DataInitTypeDef* SDIO_DataInitStruct)
{
  u32 tmpreg = 0;
  
  /* Check the parameters */
  assert_param(IS_SDIO_DATA_LENGTH(SDIO_DataInitStruct->SDIO_DataLength));
  assert_param(IS_SDIO_BLOCK_SIZE(SDIO_DataInitStruct->SDIO_DataBlockSize));
  assert_param(IS_SDIO_TRANSFER_DIR(SDIO_DataInitStruct->SDIO_TransferDir));
  assert_param(IS_SDIO_TRANSFER_MODE(SDIO_DataInitStruct->SDIO_TransferMode));
  assert_param(IS_SDIO_DPSM(SDIO_DataInitStruct->SDIO_DPSM));

/*---------------------------- SDIO DTIMER Configuration ---------------------*/
  /* Set the SDIO Data TimeOut value */
  SDIO->DTIMER = SDIO_DataInitStruct->SDIO_DataTimeOut;
    
/*---------------------------- SDIO DLEN Configuration -----------------------*/
  /* Set the SDIO DataLength value */
  SDIO->DLEN = SDIO_DataInitStruct->SDIO_DataLength;
  
/*---------------------------- SDIO DCTRL Configuration ----------------------*/  
  /* Get the SDIO DCTRL value */
  tmpreg = SDIO->DCTRL;

  /* Clear DEN, DTMODE, DTDIR and DBCKSIZE bits */
  tmpreg &= DCTRL_CLEAR_MASK;
  /* Set DEN bit according to SDIO_DPSM value */
  /* Set DTMODE bit according to SDIO_TransferMode value */
  /* Set DTDIR bit according to SDIO_TransferDir value */
  /* Set DBCKSIZE bits according to SDIO_DataBlockSize value */
  tmpreg |= (u32)SDIO_DataInitStruct->SDIO_DataBlockSize | SDIO_DataInitStruct->SDIO_TransferDir
           | SDIO_DataInitStruct->SDIO_TransferMode | SDIO_DataInitStruct->SDIO_DPSM;
  
  /* Write to SDIO DCTRL */
  SDIO->DCTRL = tmpreg;
}

/*******************************************************************************
* Function Name  : SDIO_DataStructInit
* Description    : Fills each SDIO_DataInitStruct member with its default value.
* Input          : SDIO_DataInitStruct: pointer to an SDIO_DataInitTypeDef 
*                  structure which will be initialized.
* Output         : None
* Return         : None
*******************************************************************************/
void SDIO_DataStructInit(SDIO_DataInitTypeDef* SDIO_DataInitStruct)
{
  /* SDIO_DataInitStruct members default value */
  SDIO_DataInitStruct->SDIO_DataTimeOut = 0xFFFFFFFF;
  SDIO_DataInitStruct->SDIO_DataLength = 0x00;
  SDIO_DataInitStruct->SDIO_DataBlockSize = SDIO_DataBlockSize_1b;
  SDIO_DataInitStruct->SDIO_TransferDir = SDIO_TransferDir_ToCard;
  SDIO_DataInitStruct->SDIO_TransferMode = SDIO_TransferMode_Block;  
  SDIO_DataInitStruct->SDIO_DPSM = SDIO_DPSM_Disable;
}

/*******************************************************************************
* Function Name  : SDIO_GetDataCounter
* Description    : Returns number of remaining data bytes to be transferred.
* Input          : None
* Output         : None
* Return         : Number of remaining data bytes to be transferred
*******************************************************************************/
u32 SDIO_GetDataCounter(void)
{ 
  return SDIO->DCOUNT;
}

/*******************************************************************************
* Function Name  : SDIO_ReadData
* Description    : Read one data word from Rx FIFO.
* Input          : None
* Output         : None
* Return         : Data received
*******************************************************************************/
u32 SDIO_ReadData(void)
{ 
  return SDIO->FIFO;
}

/*******************************************************************************
* Function Name  : SDIO_WriteData
* Description    : Write one data word to Tx FIFO.
* Input          : Data: 32-bit data word to write.
* Output         : None
* Return         : None
*******************************************************************************/
void SDIO_WriteData(u32 Data)
{ 
  SDIO->FIFO = Data;
}

/*******************************************************************************
* Function Name  : SDIO_GetFIFOCount
* Description    : Returns the number of words left to be written to or read
*                  from FIFO.	
* Input          : None
* Output         : None
* Return         : Remaining number of words.
*******************************************************************************/
u32 SDIO_GetFIFOCount(void)
{ 
  return SDIO->FIFOCNT;
}

/*******************************************************************************
* Function Name  : SDIO_StartSDIOReadWait
* Description    : Starts the SD I/O Read Wait operation.	
* Input          : NewState: new state of the Start SDIO Read Wait operation. 
*                  This parameter can be: ENABLE or DISABLE.
* Output         : None
* Return         : None
*******************************************************************************/
void SDIO_StartSDIOReadWait(FunctionalState NewState)
{ 
  /* Check the parameters */
  assert_param(IS_FUNCTIONAL_STATE(NewState));
  
  *(vu32 *) DCTRL_RWSTART_BB = (u32) NewState;
}

/*******************************************************************************
* Function Name  : SDIO_StopSDIOReadWait
* Description    : Stops the SD I/O Read Wait operation.	
* Input          : NewState: new state of the Stop SDIO Read Wait operation. 
*                  This parameter can be: ENABLE or DISABLE.
* Output         : None
* Return         : None
*******************************************************************************/
void SDIO_StopSDIOReadWait(FunctionalState NewState)
{ 
  /* Check the parameters */
  assert_param(IS_FUNCTIONAL_STATE(NewState));
  
  *(vu32 *) DCTRL_RWSTOP_BB = (u32) NewState;
}

/*******************************************************************************
* Function Name  : SDIO_SetSDIOReadWaitMode
* Description    : Sets one of the two options of inserting read wait interval.	
* Input          : SDIOReadWaitMode: SD I/O Read Wait operation mode.
*                  This parametre can be:
*                    - SDIO_ReadWaitMode_CLK: Read Wait control by stopping SDIOCLK
*                    - SDIO_ReadWaitMode_DATA2: Read Wait control using SDIO_DATA2
* Output         : None
* Return         : None
*******************************************************************************/
void SDIO_SetSDIOReadWaitMode(u32 SDIO_ReadWaitMode)