?? sdcard.c
字號:
cardstatus = SDIO_GetResponse(SDIO_RESP1);
}
if (timeout == 0)
{
return(SD_ERROR);
}
/* 發送命令 CMD24 WRITE_SINGLE_BLOCK */
SDIO_CmdInitStructure.SDIO_Argument = addr;
SDIO_CmdInitStructure.SDIO_CmdIndex = SDIO_WRITE_SINGLE_BLOCK;
SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short;
SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No;
SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable;
SDIO_SendCommand(&SDIO_CmdInitStructure);
errorstatus = CmdResp1Error(SDIO_WRITE_SINGLE_BLOCK);
if (errorstatus != SD_OK)
{
return(errorstatus);
}
TotalNumberOfBytes = BlockSize;
StopCondition = 0;
SrcBuffer = writebuff;
SDIO_DataInitStructure.SDIO_DataTimeOut = SD_DATATIMEOUT;
SDIO_DataInitStructure.SDIO_DataLength = BlockSize;
SDIO_DataInitStructure.SDIO_DataBlockSize = (u32) power << 4;
SDIO_DataInitStructure.SDIO_TransferDir = SDIO_TransferDir_ToCard;
SDIO_DataInitStructure.SDIO_TransferMode = SDIO_TransferMode_Block;
SDIO_DataInitStructure.SDIO_DPSM = SDIO_DPSM_Enable;
SDIO_DataConfig(&SDIO_DataInitStructure);
if (DeviceMode == SD_POLLING_MODE)
{
while (!(SDIO->STA & (SDIO_FLAG_DBCKEND | SDIO_FLAG_TXUNDERR | SDIO_FLAG_DCRCFAIL | SDIO_FLAG_DTIMEOUT | SDIO_FLAG_STBITERR)))
{
if (SDIO_GetFlagStatus(SDIO_FLAG_TXFIFOHE) != RESET)
{
if ((TotalNumberOfBytes - bytestransferred) < 32)
{
restwords = ((TotalNumberOfBytes - bytestransferred) % 4 == 0) ? ((TotalNumberOfBytes - bytestransferred) / 4) : (( TotalNumberOfBytes - bytestransferred) / 4 + 1);
for (count = 0; count < restwords; count++, tempbuff++, bytestransferred += 4)
{
SDIO_WriteData(*tempbuff);
}
}
else
{
for (count = 0; count < 8; count++)
{
SDIO_WriteData(*(tempbuff + count));
}
tempbuff += 8;
bytestransferred += 32;
}
}
}
if (SDIO_GetFlagStatus(SDIO_FLAG_DTIMEOUT) != RESET)
{
SDIO_ClearFlag(SDIO_FLAG_DTIMEOUT);
errorstatus = SD_DATA_TIMEOUT;
return(errorstatus);
}
else if (SDIO_GetFlagStatus(SDIO_FLAG_DCRCFAIL) != RESET)
{
SDIO_ClearFlag(SDIO_FLAG_DCRCFAIL);
errorstatus = SD_DATA_CRC_FAIL;
return(errorstatus);
}
else if (SDIO_GetFlagStatus(SDIO_FLAG_TXUNDERR) != RESET)
{
SDIO_ClearFlag(SDIO_FLAG_TXUNDERR);
errorstatus = SD_TX_UNDERRUN;
return(errorstatus);
}
else if (SDIO_GetFlagStatus(SDIO_FLAG_STBITERR) != RESET)
{
SDIO_ClearFlag(SDIO_FLAG_STBITERR);
errorstatus = SD_START_BIT_ERR;
return(errorstatus);
}
}
else if (DeviceMode == SD_INTERRUPT_MODE)
{
SDIO_ITConfig(SDIO_IT_DCRCFAIL | SDIO_IT_DTIMEOUT | SDIO_IT_DATAEND | SDIO_FLAG_TXFIFOHE | SDIO_IT_TXUNDERR | SDIO_IT_STBITERR, ENABLE);
while ((TransferEnd == 0) && (TransferError == SD_OK))
{}
if (TransferError != SD_OK)
{
return(TransferError);
}
}
else if (DeviceMode == SD_DMA_MODE)
{
SDIO_ITConfig(SDIO_IT_DCRCFAIL | SDIO_IT_DTIMEOUT | SDIO_IT_DATAEND | SDIO_IT_TXUNDERR | SDIO_IT_STBITERR, ENABLE);
DMA_TxConfiguration(writebuff, BlockSize);
SDIO_DMACmd(ENABLE);
while (DMA_GetFlagStatus(DMA2_FLAG_TC4) == RESET)
{}
while ((TransferEnd == 0) && (TransferError == SD_OK))
{}
if (TransferError != SD_OK)
{
return(TransferError);
}
}
/* 清靜態標志位 */
SDIO_ClearFlag(SDIO_STATIC_FLAGS);
/* 等待carprog就緒 */
errorstatus = IsCardProgramming(&cardstate);
while ((errorstatus == SD_OK) && ((cardstate == SD_CARD_PROGRAMMING) || (cardstate == SD_CARD_RECEIVING)))
{
errorstatus = IsCardProgramming(&cardstate);
}
return(errorstatus);
}
/*******************************************************************************
* 函數名 : SD_WriteMultiBlocks
* 功能描述 : Allows to write blocks starting from a specified address in
* a card.
* 輸入 : - addr: Address from where data are to be read.
* - writebuff: pointer to the buffer that contain the data to be
* transferred.
* - BlockSize: the SD card Data block size.
* - NumberOfBlocks: number of blocks to be written.
* 輸出 : None
* 返回 : SD_Error: SD Card Error code.
*******************************************************************************/
SD_Error SD_WriteMultiBlocks(u32 addr, u32 *writebuff, u16 BlockSize, u32 NumberOfBlocks)
{
SD_Error errorstatus = SD_OK;
u8 power = 0, cardstate = 0;
u32 bytestransferred = 0;
u32 count = 0, restwords = 0;
u32 *tempbuff = writebuff;
if (writebuff == NULL)
{
errorstatus = SD_INVALID_PARAMETER;
return(errorstatus);
}
TransferError = SD_OK;
TransferEnd = 0;
TotalNumberOfBytes = 0;
SDIO_DataInitStructure.SDIO_DataTimeOut = SD_DATATIMEOUT;
SDIO_DataInitStructure.SDIO_DataLength = 0;
SDIO_DataInitStructure.SDIO_DataBlockSize = SDIO_DataBlockSize_1b;
SDIO_DataInitStructure.SDIO_TransferDir = SDIO_TransferDir_ToCard;
SDIO_DataInitStructure.SDIO_TransferMode = SDIO_TransferMode_Block;
SDIO_DataInitStructure.SDIO_DPSM = SDIO_DPSM_Disable;
SDIO_DataConfig(&SDIO_DataInitStructure);
SDIO_DMACmd(DISABLE);
if (SDIO_GetResponse(SDIO_RESP1) & SD_CARD_LOCKED)
{
errorstatus = SD_LOCK_UNLOCK_FAILED;
return(errorstatus);
}
/* Set the block size, both on controller and card */
if ((BlockSize > 0) && (BlockSize <= 2048) && ((BlockSize & (BlockSize - 1)) == 0))
{
power = convert_from_bytes_to_power_of_two(BlockSize);
SDIO_CmdInitStructure.SDIO_Argument = (u32) BlockSize;
SDIO_CmdInitStructure.SDIO_CmdIndex = SDIO_SET_BLOCKLEN;
SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short;
SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No;
SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable;
SDIO_SendCommand(&SDIO_CmdInitStructure);
errorstatus = CmdResp1Error(SDIO_SET_BLOCKLEN);
if (errorstatus != SD_OK)
{
return(errorstatus);
}
}
else
{
errorstatus = SD_INVALID_PARAMETER;
return(errorstatus);
}
/* Wait till card is ready for data Added */
SDIO_CmdInitStructure.SDIO_Argument = (u32) (RCA << 16);
SDIO_CmdInitStructure.SDIO_CmdIndex = SDIO_SEND_STATUS;
SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short;
SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No;
SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable;
SDIO_SendCommand(&SDIO_CmdInitStructure);
errorstatus = CmdResp1Error(SDIO_SEND_STATUS);
if (errorstatus != SD_OK)
{
return(errorstatus);
}
if (NumberOfBlocks > 1)
{
/* Common to all modes */
if (NumberOfBlocks * BlockSize > SD_MAX_DATA_LENGTH)
{
errorstatus = SD_INVALID_PARAMETER;
return(errorstatus);
}
if ((SDIO_SECURE_DIGITAL_CARD == CardType) || (SDIO_HIGH_CAPACITY_SD_CARD == CardType))
{
/* To improve performance */
SDIO_CmdInitStructure.SDIO_Argument = (u32) (RCA << 16);
SDIO_CmdInitStructure.SDIO_CmdIndex = SDIO_APP_CMD;
SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short;
SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No;
SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable;
SDIO_SendCommand(&SDIO_CmdInitStructure);
errorstatus = CmdResp1Error(SDIO_APP_CMD);
if (errorstatus != SD_OK)
{
return(errorstatus);
}
/* To improve performance */
SDIO_CmdInitStructure.SDIO_Argument = (u32)NumberOfBlocks;
SDIO_CmdInitStructure.SDIO_CmdIndex = SDIO_SET_BLOCK_COUNT;
SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short;
SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No;
SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable;
SDIO_SendCommand(&SDIO_CmdInitStructure);
errorstatus = CmdResp1Error(SDIO_SET_BLOCK_COUNT);
if (errorstatus != SD_OK)
{
return(errorstatus);
}
}
/* Send CMD25 WRITE_MULT_BLOCK with argument data address */
SDIO_CmdInitStructure.SDIO_Argument = (u32)addr;
SDIO_CmdInitStructure.SDIO_CmdIndex = SDIO_WRITE_MULT_BLOCK;
SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short;
SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No;
SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable;
SDIO_SendCommand(&SDIO_CmdInitStructure);
errorstatus = CmdResp1Error(SDIO_WRITE_MULT_BLOCK);
if (SD_OK != errorstatus)
{
return(errorstatus);
}
TotalNumberOfBytes = NumberOfBlocks * BlockSize;
StopCondition = 1;
SrcBuffer = writebuff;
SDIO_DataInitStructure.SDIO_DataTimeOut = SD_DATATIMEOUT;
SDIO_DataInitStructure.SDIO_DataLength = NumberOfBlocks * BlockSize;
SDIO_DataInitStructure.SDIO_DataBlockSize = (u32) power << 4;
SDIO_DataInitStructure.SDIO_TransferDir = SDIO_TransferDir_ToCard;
SDIO_DataInitStructure.SDIO_TransferMode = SDIO_TransferMode_Block;
SDIO_DataInitStructure.SDIO_DPSM = SDIO_DPSM_Enable;
SDIO_DataConfig(&SDIO_DataInitStructure);
if (DeviceMode == SD_POLLING_MODE)
{
while (!(SDIO->STA & (SDIO_FLAG_TXUNDERR | SDIO_FLAG_DCRCFAIL | SDIO_FLAG_DATAEND | SDIO_FLAG_DTIMEOUT | SDIO_FLAG_STBITERR)))
{
if (SDIO_GetFlagStatus(SDIO_FLAG_TXFIFOHE) != RESET)
{
if (!((TotalNumberOfBytes - bytestransferred) < SD_HALFFIFOBYTES))
{
for (count = 0; count < SD_HALFFIFO; count++)
{
SDIO_WriteData(*(tempbuff + count));
}
tempbuff += SD_HALFFIFO;
bytestransferred += SD_HALFFIFOBYTES;
}
else
{
restwords = ((TotalNumberOfBytes - bytestransferred) % 4 == 0) ? ((TotalNumberOfBytes - bytestransferred) / 4) :
((TotalNumberOfBytes - bytestransferred) / 4 + 1);
for (count = 0; count < restwords; count++, tempbuff++, bytestransferred += 4)
{
SDIO_WriteData(*tempbuff);
}
}
}
}
if (SDIO_GetFlagStatus(SDIO_FLAG_DTIMEOUT) != RESET)
{
SDIO_ClearFlag(SDIO_FLAG_DTIMEOUT);
errorstatus = SD_DATA_TIMEOUT;
return(errorstatus);
}
else if (SDIO_GetFlagStatus(SDIO_FLAG_DCRCFAIL) != RESET)
{
SDIO_ClearFlag(SDIO_FLAG_DCRCFAIL);
errorstatus = SD_DATA_CRC_FAIL;
return(errorstatus);
}
else if (SDIO_GetFlagStatus(SDIO_FLAG_TXUNDERR) != RESET)
{
SDIO_ClearFlag(SDIO_FLAG_TXUNDERR);
errorstatus = SD_TX_UNDERRUN;
return(errorstatus);
}
else if (SDIO_GetFlagStatus(SDIO_FLAG_STBITERR) != RESET)
{
SDIO_ClearFlag(SDIO_FLAG_STBITERR);
errorstatus = SD_START_BIT_ERR;
return(errorstatus);
}
if (SDIO_GetFlagStatus(SDIO_FLAG_DATAEND) != RESET)
{
if ((SDIO_SECURE_DIGITAL_CARD == CardType) || (SDIO_HIGH_CAPACITY_SD_CARD == CardType))
{
/* Send CMD12 STOP_TRANSMISSION */
SDIO_CmdInitStructure.SDIO_Argument = 0x0;
SDIO_CmdInitStructure.SDIO_CmdIndex = SDIO_STOP_TRANSMISSION;
SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short;
SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No;
SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable;
SDIO_SendCommand(&SDIO_CmdInitStructure);
errorstatus = CmdResp1Error(SDIO_STOP_TRANSMISSION);
if (errorstatus != SD_OK)
{
return(errorstatus);
}
}
}
}
else if (DeviceMode == SD_INTERRUPT_MODE)
{
SDIO_ITConfig(SDIO_IT_DCRCFAIL | SDIO_IT_DTIMEOUT | SDIO_IT_DATAEND | SDIO_IT_TXFIFOHE | SDIO_IT_TXUNDERR | SDIO_IT_STBITERR, ENABLE);
while ((TransferEnd == 0) && (TransferError == SD_OK))
{}
if (TransferError != SD_OK)
{
return(TransferError);
}
}
else if (DeviceMode == SD_DMA_MODE)
{
SDIO_ITConfig(SDIO_IT_DCRCFAIL | SDIO_IT_DTIMEOUT | SDIO_IT_DATAEND | SDIO_IT_TXUNDERR | SDIO_IT_STBITERR, ENABLE);
SDIO_DMACmd(ENABLE);
DMA_TxConfiguration(writebuff, (NumberOfBlocks * BlockSize));
while (DMA_GetFlagStatus(DMA2_FLAG_TC4) == RESET)
{}
while ((TransferEnd == 0) && (TransferError == SD_OK))
{}
if (TransferError != SD_OK)
{
return(TransferError);
}
}
}
/* Clear all the static flags */
SDIO_ClearFlag(SDIO_STATIC_FLAGS);
/* Wait till the card is in programming state */
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