stm32f10x_sdio.c

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  return (uint8_t)(SDIO->RESPCMD);
}

/**
  * @brief  Returns response received from the card for the last command.
  * @param SDIO_RESP: Specifies the SDIO response register. 
  *   This parameter can be one of the following values:
  * @arg SDIO_RESP1: Response Register 1
  * @arg SDIO_RESP2: Response Register 2
  * @arg SDIO_RESP3: Response Register 3
  * @arg SDIO_RESP4: Response Register 4
  * @retval : The Corresponding response register value.
  */
uint32_t SDIO_GetResponse(uint32_t SDIO_RESP)
{
  /* Check the parameters */
  assert_param(IS_SDIO_RESP(SDIO_RESP));
  
  return (*(__IO uint32_t *)(SDIO_RESP_ADDR + SDIO_RESP)); 
}

/**
  * @brief  Initializes the SDIO data path according to the specified 
  *   parameters in the SDIO_DataInitStruct.
  * @param SDIO_DataInitStruct : pointer to a SDIO_DataInitTypeDef 
  *   structure that contains the configuration information 
  *   for the SDIO command.
  * @retval : None
  */
void SDIO_DataConfig(SDIO_DataInitTypeDef* SDIO_DataInitStruct)
{
  uint32_t 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 |= (uint32_t)SDIO_DataInitStruct->SDIO_DataBlockSize | SDIO_DataInitStruct->SDIO_TransferDir
           | SDIO_DataInitStruct->SDIO_TransferMode | SDIO_DataInitStruct->SDIO_DPSM;

  /* Write to SDIO DCTRL */
  SDIO->DCTRL = tmpreg;
}

/**
  * @brief  Fills each SDIO_DataInitStruct member with its default value.
  * @param SDIO_DataInitStruct: pointer to an SDIO_DataInitTypeDef 
  *   structure which will be initialized.
  * @retval : 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;
}

/**
  * @brief  Returns number of remaining data bytes to be transferred.
  * @param  None
  * @retval : Number of remaining data bytes to be transferred
  */
uint32_t SDIO_GetDataCounter(void)
{ 
  return SDIO->DCOUNT;
}

/**
  * @brief  Read one data word from Rx FIFO.
  * @param  None
  * @retval : Data received
  */
uint32_t SDIO_ReadData(void)
{ 
  return SDIO->FIFO;
}

/**
  * @brief  Write one data word to Tx FIFO.
  * @param Data: 32-bit data word to write.
  * @retval : None
  */
void SDIO_WriteData(uint32_t Data)
{ 
  SDIO->FIFO = Data;
}

/**
  * @brief  Returns the number of words left to be written to or read
  *   from FIFO.	
  * @param  None
  * @retval : Remaining number of words.
  */
uint32_t SDIO_GetFIFOCount(void)
{ 
  return SDIO->FIFOCNT;
}

/**
  * @brief  Starts the SD I/O Read Wait operation.	
  * @param NewState: new state of the Start SDIO Read Wait operation. 
  *   This parameter can be: ENABLE or DISABLE.
  * @retval : None
  */
void SDIO_StartSDIOReadWait(FunctionalState NewState)
{ 
  /* Check the parameters */
  assert_param(IS_FUNCTIONAL_STATE(NewState));
  
  *(__IO uint32_t *) DCTRL_RWSTART_BB = (uint32_t) NewState;
}

/**
  * @brief  Stops the SD I/O Read Wait operation.	
  * @param NewState: new state of the Stop SDIO Read Wait operation. 
  *   This parameter can be: ENABLE or DISABLE.
  * @retval : None
  */
void SDIO_StopSDIOReadWait(FunctionalState NewState)
{ 
  /* Check the parameters */
  assert_param(IS_FUNCTIONAL_STATE(NewState));
  
  *(__IO uint32_t *) DCTRL_RWSTOP_BB = (uint32_t) NewState;
}

/**
  * @brief  Sets one of the two options of inserting read wait interval.
  * @param SDIO_ReadWaitMode: SD I/O Read Wait operation mode.
  *   This parametre can be:
  * @arg SDIO_ReadWaitMode_CLK: Read Wait control by stopping SDIOCLK
  * @arg SDIO_ReadWaitMode_DATA2: Read Wait control using SDIO_DATA2
  * @retval : None
  */
void SDIO_SetSDIOReadWaitMode(uint32_t SDIO_ReadWaitMode)
{
  /* Check the parameters */
  assert_param(IS_SDIO_READWAIT_MODE(SDIO_ReadWaitMode));
  
  *(__IO uint32_t *) DCTRL_RWMOD_BB = SDIO_ReadWaitMode;
}

/**
  * @brief  Enables or disables the SD I/O Mode Operation.
  * @param NewState: new state of SDIO specific operation. 
  *   This parameter can be: ENABLE or DISABLE.
  * @retval : None
  */
void SDIO_SetSDIOOperation(FunctionalState NewState)
{ 
  /* Check the parameters */
  assert_param(IS_FUNCTIONAL_STATE(NewState));
  
  *(__IO uint32_t *) DCTRL_SDIOEN_BB = (uint32_t)NewState;
}

/**
  * @brief  Enables or disables the SD I/O Mode suspend command sending.
  * @param NewState: new state of the SD I/O Mode suspend command.
  *   This parameter can be: ENABLE or DISABLE.
  * @retval : None
  */
void SDIO_SendSDIOSuspendCmd(FunctionalState NewState)
{ 
  /* Check the parameters */
  assert_param(IS_FUNCTIONAL_STATE(NewState));
  
  *(__IO uint32_t *) CMD_SDIOSUSPEND_BB = (uint32_t)NewState;
}

/**
  * @brief  Enables or disables the command completion signal.
  * @param NewState: new state of command completion signal. 
  *   This parameter can be: ENABLE or DISABLE.
  * @retval : None
  */
void SDIO_CommandCompletionCmd(FunctionalState NewState)
{ 
  /* Check the parameters */
  assert_param(IS_FUNCTIONAL_STATE(NewState));
  
  *(__IO uint32_t *) CMD_ENCMDCOMPL_BB = (uint32_t)NewState;
}

/**
  * @brief  Enables or disables the CE-ATA interrupt.
  * @param NewState: new state of CE-ATA interrupt. 
  *   This parameter can be: ENABLE or DISABLE.
  * @retval : None
  */
void SDIO_CEATAITCmd(FunctionalState NewState)
{ 
  /* Check the parameters */
  assert_param(IS_FUNCTIONAL_STATE(NewState));
  
  *(__IO uint32_t *) CMD_NIEN_BB = (uint32_t)((~((uint32_t)NewState)) & ((uint32_t)0x1));
}

/**
  * @brief  Sends CE-ATA command (CMD61).
  * @param NewState: new state of CE-ATA command. 
  *   This parameter can be: ENABLE or DISABLE.
  * @retval : None
  */
void SDIO_SendCEATACmd(FunctionalState NewState)
{ 
  /* Check the parameters */
  assert_param(IS_FUNCTIONAL_STATE(NewState));
  
  *(__IO uint32_t *) CMD_ATACMD_BB = (uint32_t)NewState;
}

/**
  * @brief  Checks whether the specified SDIO flag is set or not.
  * @param SDIO_FLAG: specifies the flag to check. 
  *   This parameter can be one of the following values:
  * @arg SDIO_FLAG_CCRCFAIL: Command response received (CRC check failed)
  * @arg SDIO_FLAG_DCRCFAIL: Data block sent/received (CRC check failed)
  * @arg SDIO_FLAG_CTIMEOUT: Command response timeout
  * @arg SDIO_FLAG_DTIMEOUT: Data timeout
  * @arg SDIO_FLAG_TXUNDERR: Transmit FIFO underrun error
  * @arg SDIO_FLAG_RXOVERR:  Received FIFO overrun error
  * @arg SDIO_FLAG_CMDREND:  Command response received (CRC check passed)
  * @arg SDIO_FLAG_CMDSENT:  Command sent (no response required)
  * @arg SDIO_FLAG_DATAEND:  Data end (data counter, SDIDCOUNT, is zero)
  * @arg SDIO_FLAG_STBITERR: Start bit not detected on all data signals in wide 
  *                          bus mode.
  * @arg SDIO_FLAG_DBCKEND:  Data block sent/received (CRC check passed)
  * @arg SDIO_FLAG_CMDACT:   Command transfer in progress
  * @arg SDIO_FLAG_TXACT:    Data transmit in progress
  * @arg SDIO_FLAG_RXACT:    Data receive in progress
  * @arg SDIO_FLAG_TXFIFOHE: Transmit FIFO Half Empty
  * @arg SDIO_FLAG_RXFIFOHF: Receive FIFO Half Full
  * @arg SDIO_FLAG_TXFIFOF:  Transmit FIFO full
  * @arg SDIO_FLAG_RXFIFOF:  Receive FIFO full
  * @arg SDIO_FLAG_TXFIFOE:  Transmit FIFO empty
  * @arg SDIO_FLAG_RXFIFOE:  Receive FIFO empty
  * @arg SDIO_FLAG_TXDAVL:   Data available in transmit FIFO
  * @arg SDIO_FLAG_RXDAVL:   Data available in receive FIFO
  * @arg SDIO_FLAG_SDIOIT:   SD I/O interrupt received
  * @arg SDIO_FLAG_CEATAEND: CE-ATA command completion signal received for CMD61
  * @retval : The new state of SDIO_FLAG (SET or RESET).
  */
FlagStatus SDIO_GetFlagStatus(uint32_t SDIO_FLAG)
{ 
  FlagStatus bitstatus = RESET;
  
  /* Check the parameters */
  assert_param(IS_SDIO_FLAG(SDIO_FLAG));
  
  if ((SDIO->STA & SDIO_FLAG) != (uint32_t)RESET)
  {
    bitstatus = SET;
  }
  else
  {
    bitstatus = RESET;
  }
  return bitstatus;
}

/**
  * @brief  Clears the SDIO's pending flags.
  * @param SDIO_FLAG: specifies the flag to clear.  
  *   This parameter can be one or a combination of the following values:
  * @arg SDIO_FLAG_CCRCFAIL: Command response received (CRC check failed)
  * @arg SDIO_FLAG_DCRCFAIL: Data block sent/received (CRC check failed)
  * @arg SDIO_FLAG_CTIMEOUT: Command response timeout
  * @arg SDIO_FLAG_DTIMEOUT: Data timeout
  * @arg SDIO_FLAG_TXUNDERR: Transmit FIFO underrun error
  * @arg SDIO_FLAG_RXOVERR:  Received FIFO overrun error
  * @arg SDIO_FLAG_CMDREND:  Command response received (CRC check passed)
  * @arg SDIO_FLAG_CMDSENT:  Command sent (no response required)
  * @arg SDIO_FLAG_DATAEND:  Data end (data counter, SDIDCOUNT, is zero)
  * @arg SDIO_FLAG_STBITERR: Start bit not detected on all data signals in wide 
  *                          bus mode
  * @arg SDIO_FLAG_DBCKEND:  Data block sent/received (CRC check passed)
  * @arg SDIO_FLAG_SDIOIT:   SD I/O interrupt received
  * @arg SDIO_FLAG_CEATAEND: CE-ATA command completion signal received for CMD61
  * @retval : None
  */
void SDIO_ClearFlag(uint32_t SDIO_FLAG)
{ 
  /* Check the parameters */
  assert_param(IS_SDIO_CLEAR_FLAG(SDIO_FLAG));
   
  SDIO->ICR = SDIO_FLAG;
}

/**
  * @brief  Checks whether the specified SDIO interrupt has occurred or not.
  * @param SDIO_IT: specifies the SDIO interrupt source to check. 
  *   This parameter can be one of the following values:
  * @arg SDIO_IT_CCRCFAIL: Command response received (CRC check failed) interrupt
  * @arg SDIO_IT_DCRCFAIL: Data block sent/received (CRC check failed) interrupt
  * @arg SDIO_IT_CTIMEOUT: Command response timeout interrupt
  * @arg SDIO_IT_DTIMEOUT: Data timeout interrupt
  * @arg SDIO_IT_TXUNDERR: Transmit FIFO underrun error interrupt
  * @arg SDIO_IT_RXOVERR:  Received FIFO overrun error interrupt
  * @arg SDIO_IT_CMDREND:  Command response received (CRC check passed) interrupt
  * @arg SDIO_IT_CMDSENT:  Command sent (no response required) interrupt
  * @arg SDIO_IT_DATAEND:  Data end (data counter, SDIDCOUNT, is zero) interrupt
  * @arg SDIO_IT_STBITERR: Start bit not detected on all data signals in wide 
  *                        bus mode interrupt
  * @arg SDIO_IT_DBCKEND:  Data block sent/received (CRC check passed) interrupt
  * @arg SDIO_IT_CMDACT:   Command transfer in progress interrupt
  * @arg SDIO_IT_TXACT:    Data transmit in progress interrupt
  * @arg SDIO_IT_RXACT:    Data receive in progress interrupt
  * @arg SDIO_IT_TXFIFOHE: Transmit FIFO Half Empty interrupt
  * @arg SDIO_IT_RXFIFOHF: Receive FIFO Half Full interrupt
  * @arg SDIO_IT_TXFIFOF:  Transmit FIFO full interrupt
  * @arg SDIO_IT_RXFIFOF:  Receive FIFO full interrupt
  * @arg SDIO_IT_TXFIFOE:  Transmit FIFO empty interrupt
  * @arg SDIO_IT_RXFIFOE:  Receive FIFO empty interrupt
  * @arg SDIO_IT_TXDAVL:   Data available in transmit FIFO interrupt
  * @arg SDIO_IT_RXDAVL:   Data available in receive FIFO interrupt
  * @arg SDIO_IT_SDIOIT:   SD I/O interrupt received interrupt
  * @arg SDIO_IT_CEATAEND: CE-ATA command completion signal received for CMD61 
  *                        interrupt
  * @retval : The new state of SDIO_IT (SET or RESET).
  */
ITStatus SDIO_GetITStatus(uint32_t SDIO_IT)
{ 
  ITStatus bitstatus = RESET;
  
  /* Check the parameters */
  assert_param(IS_SDIO_GET_IT(SDIO_IT));
  if ((SDIO->STA & SDIO_IT) != (uint32_t)RESET)  
  {
    bitstatus = SET;
  }
  else
  {
    bitstatus = RESET;
  }
  return bitstatus;
}

/**
  * @brief  Clears the SDIO抯 interrupt pending bits.
  * @param SDIO_IT: specifies the interrupt pending bit to clear. 
  *   This parameter can be one or a combination of the following values:
  * @arg SDIO_IT_CCRCFAIL: Command response received (CRC check failed) interrupt
  * @arg SDIO_IT_DCRCFAIL: Data block sent/received (CRC check failed) interrupt
  * @arg SDIO_IT_CTIMEOUT: Command response timeout interrupt
  * @arg SDIO_IT_DTIMEOUT: Data timeout interrupt
  * @arg SDIO_IT_TXUNDERR: Transmit FIFO underrun error interrupt
  * @arg SDIO_IT_RXOVERR:  Received FIFO overrun error interrupt
  * @arg SDIO_IT_CMDREND:  Command response received (CRC check passed) interrupt
  * @arg SDIO_IT_CMDSENT:  Command sent (no response required) interrupt
  * @arg SDIO_IT_DATAEND:  Data end (data counter, SDIDCOUNT, is zero) interrupt
  * @arg SDIO_IT_STBITERR: Start bit not detected on all data signals in wide 
  *                        bus mode interrupt
  * @arg SDIO_IT_SDIOIT:   SD I/O interrupt received interrupt
  * @arg SDIO_IT_CEATAEND: CE-ATA command completion signal received for CMD61
  * @retval : None
  */
void SDIO_ClearITPendingBit(uint32_t SDIO_IT)
{ 
  /* Check the parameters */
  assert_param(IS_SDIO_CLEAR_IT(SDIO_IT));
   
  SDIO->ICR = SDIO_IT;
}

/**
  * @}
  */

/**
  * @}
  */

/**
  * @}
  */

/******************* (C) COPYRIGHT 2009 STMicroelectronics *****END OF FILE****/