/***********************************************************
* Function:
* Description:
* Input:
* Input:
* Output:
* Return:
* Others:
***********************************************************/
static rt_uint8_t _spi_sd_sendcmd_hold( rt_uint8_t cmd, rt_uint32_t arg, rt_uint8_t crc )
{
rt_uint32_t r1, n;
#if 1
if( cmd & 0x80 ) /* ACMD<n> is the command sequence of CMD55-CMD<n> */
{
cmd &= 0x7F;
r1 = _spi_sd_sendcmd( APP_CMD, 0, DUMMY_CRC ); /* CMD55 */
if( r1 > 1 )
{
return r1; /* cmd send failed */
}
}
#endif
_spi_send_recv( DUMMY_BYTE );
_card_enable( );
_spi_send_recv( cmd );
_spi_send_recv( arg >> 24 );
_spi_send_recv( arg >> 16 );
_spi_send_recv( arg >> 8 );
_spi_send_recv( arg );
_spi_send_recv( crc );
for( n = 0; n < 200; n++ )
{
r1 = _spi_send_recv( DUMMY_BYTE );
if( r1 != 0xFF )
{
break;
}
}
return ( r1 ); /* Return with the response value */
}
/*******************************************************************************
* Function Name : _send_command_hold
* Description : None
* Input : - cmd:
* - arg:
* - crc:
* Output : None
* Return : R1 value, response from card
* Attention : None
*******************************************************************************/
int _send_command_hold(uint8_t cmd, uint32_t arg, uint8_t crc)
{
uint8_t r1;
uint8_t retry;
/* Dummy byte and chip enable */
_spi_read_write(DUMMY_BYTE);
_card_enable();
/* Command, argument and crc */
_spi_read_write(cmd | 0x40);
_spi_read_write(arg >> 24);
_spi_read_write(arg >> 16);
_spi_read_write(arg >> 8);
_spi_read_write(arg);
_spi_read_write(crc);
/* Wait response, quit till timeout */
for(retry = 0; retry < 200; retry++)
{
r1 = _spi_read_write(DUMMY_BYTE);
if(r1 != 0xFF)
{
break;
}
}
return r1;
}
/*****************************************************************************
Send a Command to Flash card and get a Response
cmd: cmd index
arg: argument for the cmd
return the received response of the commond
*****************************************************************************/
static rt_uint8_t _spi_sd_sendcmd( rt_uint8_t cmd, rt_uint32_t arg, rt_uint8_t crc )
{
rt_uint32_t n;
rt_uint8_t r1;
#if 1
if( cmd & 0x80 ) /* ACMD<n> is the command sequence of CMD55-CMD<n> */
{
cmd &= 0x7F;
r1 = _spi_sd_sendcmd( APP_CMD, 0, DUMMY_CRC ); /* CMD55 */
if( r1 > 1 )
{
return r1; /* cmd send failed */
}
}
#endif
/* Select the card and wait for ready */
// LPC17xx_SPI_DeSelect();
// LPC17xx_SPI_Select();
// if (_spi_sd_wait4ready() == false ) return 0xFF;
_spi_send_recv( DUMMY_BYTE );
_card_enable( );
_spi_send_recv( cmd );
_spi_send_recv( arg >> 24 );
_spi_send_recv( arg >> 16 );
_spi_send_recv( arg >> 8 );
_spi_send_recv( arg );
_spi_send_recv( crc );
#if 0
n = 10; /* Wait for a valid response in timeout of 10 attempts */
do
{
r1 = _spi_send_recv( DUMMY_BYTE );
}
while( ( r1 & 0x80 ) && --n );
#endif
#if 1
for( n = 0; n < 200; n++ )
{
r1 = _spi_send_recv( DUMMY_BYTE );
if( r1 != 0xFF )
{
break;
}
}
#endif
_card_disable( );
_spi_send_recv( DUMMY_BYTE );
return r1; /* Return with the response value */
}
/*******************************************************************************
* Function Name : _read_buffer
* Description : None
* Input : - *buff:
* - len:
* - release:
* Output : None
* Return : 0：NO_ERR; TRUE: Error
* Attention : None
*******************************************************************************/
int _read_buffer(uint8_t *buff, uint16_t len, uint8_t release)
{
uint8_t r1;
uint16_t retry;
/* Card enable, Prepare to read */
_card_enable();
/* Wait start-token 0xFE */
for(retry = 0; retry < 2000; retry++)
{
r1 = _spi_read_write(DUMMY_BYTE);
if(r1 == 0xFE)
{
retry = 0;
break;
}
}
/* Timeout return */
if(retry == 2000)
{
_card_disable();
return 1;
}
/* Start reading */
for(retry = 0; retry < len; retry++)
{
*(buff + retry) = _spi_read_write(DUMMY_BYTE);
}
/* 2bytes dummy CRC */
_spi_read_write(DUMMY_BYTE);
_spi_read_write(DUMMY_BYTE);
/* chip disable and dummy byte */
if(release)
{
_card_disable();
_spi_read_write(DUMMY_BYTE);
}
return 0;
}
/*****************************************************************************
Write 512 bytes
buffer: 512 byte data block to be transmitted
token: 0xFE -> single block
0xFC -> multi block
0xFD -> Stop
*****************************************************************************/
static rt_uint8_t _spi_sd_writedatablock( const rt_uint8_t *buff, rt_uint8_t token )
{
rt_uint8_t resp, i=0;
i = i; // avoid warning
_card_enable( );
_spi_send_recv( DUMMY_BYTE );
_spi_send_recv( DUMMY_BYTE );
_spi_send_recv( DUMMY_BYTE );
_spi_send_recv( token ); /* send data token first*/
if( token != TOKEN_STOP_TRAN )
{
for( i = 512 / 4; i; i-- )
{
_spi_send_recv( *buff++ );
_spi_send_recv( *buff++ );
_spi_send_recv( *buff++ );
_spi_send_recv( *buff++ );
}
_spi_send_recv( DUMMY_CRC ); /* 16-bit CRC (Dummy) */
_spi_send_recv( DUMMY_CRC );
resp = _spi_send_recv( DUMMY_BYTE ); /* Receive data response */
if( ( resp & 0x1F ) != 0x05 ) /* If not accepted, return with error */
{
return false;
}
if( _spi_sd_wait4ready( ) == false ) /* Wait while Flash Card is busy. */
{
return false;
}
}
return true;
}
/***********************************************************
* Function:
* Description:
* Input:
* Input:
* Output:
* Return:
* Others:
***********************************************************/
static rt_uint8_t _spi_sd_readdatablock( rt_uint8_t *buff, rt_uint32_t cnt, rt_uint8_t release )
{
rt_uint8_t r1;
rt_uint16_t retry;
_card_enable( );
for( retry = 0; retry < 2000; retry++ )
{
r1 = _spi_send_recv( DUMMY_BYTE );
if( r1 == 0xFE )
{
retry = 0;
break;
}
}
if( retry == 2000 )
{
_card_disable( );
return false;
}
for( retry = 0; retry < cnt; retry++ )
{
*( buff + retry ) = _spi_send_recv( DUMMY_BYTE );
}
// 2bytes dummy CRC
_spi_send_recv( DUMMY_BYTE );
_spi_send_recv( DUMMY_BYTE );
// chip disable and dummy byte
if( release )
{
_card_disable( );
_spi_send_recv( DUMMY_BYTE );
}
return true;
}
/*******************************************************************************
* Function Name : MSD_ReadSingleBlock
* Description : None
* Input : - sector:
* - buffer:
* Output : None
* Return : None
* Attention : None
*******************************************************************************/
int MSD_ReadSingleBlock_DMA(uint32_t sector, uint8_t *buffer)
{
DMA_InitTypeDef DMA_InitStructure;
u8 rvalue = MSD_RESPONSE_FAILURE;
uint8_t r1;
uint16_t retry;
char DuumyClock = DUMMY_BYTE;
if(CardInfo.CardType != CARDTYPE_SDV2HC)
{
sector = sector << 9;
}
/*initial dma channel 2*/
DMA_DeInit(DMA1_Channel4);
DMA_DeInit(DMA1_Channel5);
DMA_InitStructure.DMA_PeripheralBaseAddr = (u32)&SPI2->DR;
DMA_InitStructure.DMA_MemoryBaseAddr = (u32)buffer;
DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralSRC;
DMA_InitStructure.DMA_BufferSize = 200;
DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;
DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable;
DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_Byte;
DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_Byte;
DMA_InitStructure.DMA_Mode = DMA_Mode_Normal;
DMA_InitStructure.DMA_Priority = DMA_Priority_VeryHigh;
DMA_InitStructure.DMA_M2M = DMA_M2M_Disable;
DMA_Init(DMA1_Channel4, &DMA_InitStructure);
DMA_InitStructure.DMA_MemoryBaseAddr = (u32)&DuumyClock; //512字节的dummy
DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralDST;
DMA_InitStructure.DMA_Mode = DMA_Mode_Circular;
DMA_InitStructure.DMA_Priority = DMA_Priority_Low;
DMA_Init(DMA1_Channel5, &DMA_InitStructure);
SPI_I2S_DMACmd(SPI2, SPI_I2S_DMAReq_Tx, ENABLE);
SPI_I2S_DMACmd(SPI2, SPI_I2S_DMAReq_Rx, ENABLE);
// DMA_ClearFlag(DMA_FLAG_TC2);
/* Send CMD17 : Read single block command */
r1 = _send_command(CMD17, sector, 0);
if(r1 != 0x00)
{
return 1;
}
/* Card enable, Prepare to read */
_card_enable();
/* Wait start-token 0xFE */
for(retry = 0; retry < 2000; retry++)
{
r1 = _spi_read_write(DUMMY_BYTE);
if(r1 == 0xFE)
{
retry = 0;
break;
}
}
/* Timeout return */
if(retry == 2000)
{
_card_disable();
return 1;
}
DMA_Cmd(DMA1_Channel5, ENABLE);
DMA_Cmd(DMA1_Channel4, ENABLE);
while(!DMA_GetFlagStatus(DMA1_FLAG_TC5));
while(!DMA_GetFlagStatus(DMA1_FLAG_TC4));
DMA_ClearFlag(DMA1_FLAG_TC4);
/* 2bytes dummy CRC */
_spi_read_write(DUMMY_BYTE);
_spi_read_write(DUMMY_BYTE);
/* chip disable and dummy byte */
_card_disable();
_spi_read_write(DUMMY_BYTE);
/* Set response value to success */
rvalue = MSD_RESPONSE_NO_ERROR;
DMA_Cmd(DMA1_Channel4, DISABLE);
DMA_Cmd(DMA1_Channel5, DISABLE);
/* Returns the reponse */
return rvalue;
}
/*******************************************************************************
* Function Name : MSD_WriteMultipleBlock
* Description : None
* Input : - sector:
* - buffer:
* Output : None
* Return : None
* Attention : None
*******************************************************************************/
int MSD_WriteMultipleBlock(uint32_t sector, uc8 *buffer, uint8_t count)
{
uint8_t r1;
uint16_t i;
uint32_t retry;
/* if ver = SD2.0 HC, sector need <<9 */
if(CardInfo.CardType != CARDTYPE_SDV2HC)
{
sector = sector << 9;
}
if(CardInfo.CardType != CARDTYPE_MMC)
{
_send_command(ACMD23, count, 0);
}
/* Send CMD25 : Write multiple block command */
r1 = _send_command(CMD25, sector, 0);
if(r1 != 0x00)
{
return 1;
}
/* Card enable, Prepare to write */
_card_enable();
_spi_read_write(DUMMY_BYTE);
_spi_read_write(DUMMY_BYTE);
_spi_read_write(DUMMY_BYTE);
/* Start data write token: 0xFE */
//_spi_read_write(0xFE);
do
{
_spi_read_write(0xFC);
for(i = 0; i < MSD_BLOCKSIZE; i++)
{
_spi_read_write(*buffer++);
}
/* 2Bytes dummy CRC */
_spi_read_write(DUMMY_BYTE);
_spi_read_write(DUMMY_BYTE);
/* MSD card accept the data */
r1 = _spi_read_write(DUMMY_BYTE);
if((r1 & 0x1F) != 0x05)
{
_card_disable();
return 2;
}
/* Wait all the data programm finished */
retry = 0;
while(_spi_read_write(DUMMY_BYTE) == 0x00)
{
/* Timeout return */
if(retry++ == 0x40000)
{
_card_disable();
return 3;
}
}
}
while (--count);
r1 = _spi_read_write(0xFD);
if(r1 == 0x00)
{
return 4;
}
/* Wait all the data programm finished */
retry = 0;
while(_spi_read_write(DUMMY_BYTE) == 0x00)
{
/* Timeout return */
if(retry++ == 0x40000)
{
_card_disable();
return 5;
}
}
/* chip disable and dummy byte */
_card_disable();
_spi_read_write(DUMMY_BYTE);
return count;
}
/************************************************************************************
* Function Name : MSD_WriteMultipleBlock_DMA(uint32_t sector, uc8 *buffer，u16 NumByteToWrite)
* Description : None
* Input : - sector:
* - buffer:
* Output : None
* Return : None
* Attention : None
************************************************************************************/
int MSD_WriteMultipleBlock_DMA(uint32_t sector, uc8 *buffer, u8 NbrOfSector, u16 NumByteToWrite)
{
uint8 r1;
// uint16_t i=0;
uint32_t retry;
u8 value = 0;
// INT8U err;
u8 rvalue = MSD_RESPONSE_FAILURE;
DMA_InitTypeDef DMA_InitStructure; //定义DMA初始化结构体
/*begin:yangfei added 2012.11.29*/
// debug("MSD_WriteMultipleBlock_DMA\r\n");
_card_enable();
DMA_DeInit(DMA1_Channel5);
DMA_InitStructure.DMA_PeripheralBaseAddr = (u32)&SPI2->DR;
DMA_InitStructure.DMA_MemoryBaseAddr = (u32)buffer;
DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralDST;
DMA_InitStructure.DMA_BufferSize = NumByteToWrite;
DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;
DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable;
DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_Byte;
DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_Byte;
DMA_InitStructure.DMA_Mode = DMA_Mode_Normal;
DMA_InitStructure.DMA_Priority = DMA_Priority_Medium;
DMA_InitStructure.DMA_M2M = DMA_M2M_Disable;
DMA_Init(DMA1_Channel5, &DMA_InitStructure);
/* Enable DMA1 Channel5 Transfer Complete interrupt */
DMA_ITConfig(DMA1_Channel5, DMA_IT_TC, ENABLE);
SPI_I2S_DMACmd(SPI2, SPI_I2S_DMAReq_Tx, ENABLE);
/*end:yangfei added 2012.11.29*/
//SPI_DMA_Send_Init(buffer,MSD_BLOCKSIZE);
/* if ver = SD2.0 HC, sector need <<9 */
if(CardInfo.CardType != CARDTYPE_SDV2HC)
{
sector = sector << 9;
}
if(CardInfo.CardType != CARDTYPE_MMC)
{
_send_command(ACMD23, NbrOfSector, 0);
}
/* Send CMD25 : Write multiple block command */
MSD_SendCmd(CMD25, sector, 0xff);
//_spi_read_write(DUMMY_BYTE);
//_spi_read_write(DUMMY_BYTE);
if (!MSD_GetResponse(MSD_RESPONSE_NO_ERROR))
{
_spi_read_write(DUMMY_BYTE);
/* Start data write token: 0xFE */
_spi_read_write(0xFC);
/*begin:yangfei added 2012.11.28*/
DMA_Cmd(DMA1_Channel5, ENABLE);
#ifdef DMA1_IRQ
OSFlagPend(Sem_SD_DMA, (OS_FLAGS)1, OS_FLAG_WAIT_SET_ALL, 0, &err); //请求信号量集的第0位置1
DMA_ClearFlag(DMA1_FLAG_TC5);
#else
while(!DMA_GetFlagStatus(DMA1_FLAG_TC5)) ;
DMA_ClearFlag(DMA1_FLAG_TC5);
#endif
/* 2Bytes dummy CRC */
_spi_read_write(DUMMY_BYTE);
_spi_read_write(DUMMY_BYTE);
value = MSD_GetDataResponse();
if (value == MSD_DATA_OK)
{
rvalue = MSD_RESPONSE_NO_ERROR;
}
// debug("value=%x\r\n",value);
}
/* Send end of transmit token: 0xFD */
r1 = _spi_read_write(0xFD);
if(r1 == 0x00)
{
return 4;
}
/*begin:yangfei added 2012.12.07 for wait programm finished else write error*/
/* Wait all the data programm finished */
retry = 0;
while(_spi_read_write(DUMMY_BYTE) == 0x00)
{
/* Timeout return */
if(retry++ == 0x40000)
{
_card_disable();
return 3;
}
}
/* chip disable and dummy byte */
_card_disable();
_spi_read_write(DUMMY_BYTE);
/*yangfei added*/
DMA_Cmd(DMA1_Channel5, DISABLE);
return rvalue;
}
/*******************************************************************************
* Function Name : MSD_WriteMultiBlock
* Description : None
* Input : - sector:
* - buffer:
* - NbrOfSector:
* Output : None
* Return : None
* Attention : None
*******************************************************************************/
int MSD_WriteMultiBlock(uint32_t sector, uc8 *buffer, uint32_t NbrOfSector)
{
uint8_t r1;
uint16_t i;
uint32_t n;
uint32_t retry;
/* if ver = SD2.0 HC, sector need <<9 */
if(CardInfo.CardType != CARDTYPE_SDV2HC)
{
sector = sector<<9;
}
/* Send command ACMD23 berfore multi write if is not a MMC card */
if(CardInfo.CardType != CARDTYPE_MMC)
{
_send_command(ACMD23, NbrOfSector, 0x00);
}
/* Send CMD25 : Write nulti block command */
r1 = _send_command(CMD25, sector, 0);
if(r1 != 0x00)
{
return 1;
}
/* Card enable, Prepare to write */
_card_enable();
_spi_read_write(DUMMY_BYTE);
_spi_read_write(DUMMY_BYTE);
_spi_read_write(DUMMY_BYTE);
for(n=0; n<NbrOfSector; n++)
{
/* Start multi block write token: 0xFC */
_spi_read_write(0xFC);
for(i=0; i<MSD_BLOCKSIZE; i++)
{
_spi_read_write(*buffer++);
}
/* 2Bytes dummy CRC */
_spi_read_write(DUMMY_BYTE);
_spi_read_write(DUMMY_BYTE);
/* MSD card accept the data */
r1 = _spi_read_write(DUMMY_BYTE);
if((r1&0x1F) != 0x05)
{
_card_disable();
return 2;
}
/* Wait all the data programm finished */
retry = 0;
while(_spi_read_write(DUMMY_BYTE) != 0xFF)
{
/* Timeout return */
if(retry++ == 0x40000)
{
_card_disable();
return 3;
}
}
}
/* Send end of transmit token: 0xFD */
r1 = _spi_read_write(0xFD);
if(r1 == 0x00)
{
return 4;
}
/* Wait all the data programm finished */
retry = 0;
while(_spi_read_write(DUMMY_BYTE) != 0xFF)
{
/* Timeout return */
if(retry++ == 0x40000)
{
_card_disable();
return 5;
}
}
/* chip disable and dummy byte */
_card_disable();
_spi_read_write(DUMMY_BYTE);
return 0;
}
