INNO_RET INNO_SPI_Read_Bytes_NoCS(unsigned char *buffer, int len)
{
INNO_RET ret =INNO_NO_ERROR;
unsigned char *tx_buf=NULL, *rx_buf=NULL;
#ifdef MT6589_CMMB_SPI_CONFIG
INNO_SPI_Mode(1);
#endif
if(len>CMMB_SPI_INTERFACE_MAX_PKT_LENGTH_PER_TIMES){
tx_buf = NULL;
rx_buf = buffer;
ret = INNODev_xfer(tx_buf,rx_buf, len);
}
else{ //buffer may not be physical continue,so use buffer cmmb_spi_src_buffer_all
if(cmmb_spi_src_buffer_all==NULL)
return INNO_GENERAL_ERROR;
tx_buf = NULL;
rx_buf = cmmb_spi_src_buffer_all;
ret = INNODev_xfer(tx_buf,rx_buf, len);
if(ret == INNO_NO_ERROR)
memcpy(buffer,cmmb_spi_src_buffer_all,len);
}
return ret;
}
/*
* Write multi bytes to SPI bus without touching CS
*
* Parameter:
* buffer <in> : the buffer point to store data which will be write to spi bus
* len <in> : how many bytes will be write by SPI
*
*/
INNO_RET INNO_SPI_Write_Bytes_NoCS(unsigned char *buffer, int len)
{
INNO_RET ret = INNO_NO_ERROR;
unsigned char* tx_buf=NULL, *rx_buf=NULL;
#ifdef MT6589_CMMB_SPI_CONFIG
INNO_SPI_Mode(0);
#endif
#ifdef MT6589_CMMB_SPI_CONFIG
tx_buf = buffer;
if( len > MT6589_CMMB_SPI_TX_MAX_PKT_LENGTH_PER_TIMES )
{
int i;
int pkt_cnt = len / MT6589_CMMB_SPI_TX_MAX_PKT_LENGTH_PER_TIMES;
int remainder = len % MT6589_CMMB_SPI_TX_MAX_PKT_LENGTH_PER_TIMES;
for(i=0; i < pkt_cnt; i++)
{
ret += INNODev_xfer(tx_buf,rx_buf, MT6589_CMMB_SPI_TX_MAX_PKT_LENGTH_PER_TIMES);
tx_buf += MT6589_CMMB_SPI_TX_MAX_PKT_LENGTH_PER_TIMES;
}
if(remainder)
{
ret += INNODev_xfer(tx_buf,rx_buf, remainder);
}
}
else
ret = INNODev_xfer(tx_buf,rx_buf, len);
#else
if(len>CMMB_SPI_INTERFACE_MAX_PKT_LENGTH_PER_TIMES){
tx_buf = buffer;
rx_buf =NULL;
}
else{
if(cmmb_spi_src_buffer_all==NULL)
return INNO_GENERAL_ERROR;
if(buffer!=cmmb_spi_src_buffer_all)
memcpy(cmmb_spi_src_buffer_all,buffer,len);
tx_buf = cmmb_spi_src_buffer_all;
rx_buf =NULL;
}
ret = INNODev_xfer(tx_buf,rx_buf, len);
#endif
return ret;
}
/*
* Read one byte from SPI bus without touching CS
*
* Parameter:
* data <out> : the data read from SPI bus
*
*/
INNO_RET INNO_SPI_Read_One_Byte_NoCS(unsigned char *data)
{
INNO_RET ret=INNO_NO_ERROR;
if(cmmb_spi_src_buffer_all==NULL)
return INNO_GENERAL_ERROR;
cmmb_spi_src_buffer_all[0] =0;
ret = INNODev_xfer(NULL,cmmb_spi_src_buffer_all, 1);
*data=cmmb_spi_src_buffer_all[0];
return ret;
}
/*
* Write one byte to SPI bus without touching CS
*
* Parameter:
* data <in> : the data write to SPI bus
*
*/
INNO_RET INNO_SPI_Write_One_Byte_NoCS(unsigned char data)
{
INNO_RET ret= INNO_NO_ERROR;
if(cmmb_spi_src_buffer_all==NULL)
return INNO_GENERAL_ERROR;
cmmb_spi_src_buffer_all[0]=data;
ret = INNODev_xfer(cmmb_spi_src_buffer_all,NULL, 1);
return ret;
}
/*
* Write one byte to SPI bus without touching CS
*
* Parameter:
* data <in> : the data write to SPI bus
*
*/
INNO_RET INNO_SPI_Write_One_Byte_NoCS(unsigned char data)
{
INNO_RET ret= INNO_NO_ERROR;
if(cmmb_spi_src_buffer_all==NULL)
return INNO_GENERAL_ERROR;
cmmb_spi_src_buffer_all[0]=data;
#ifdef MT6589_CMMB_SPI_CONFIG
INNO_SPI_Mode(0);
#endif
ret = INNODev_xfer(cmmb_spi_src_buffer_all,NULL, 1);
return ret;
}
/*
* Read one byte from SPI bus without touching CS
*
* Parameter:
* data <out> : the data read from SPI bus
*
*/
INNO_RET INNO_SPI_Read_One_Byte_NoCS(unsigned char *data)
{
INNO_RET ret=INNO_NO_ERROR;
if(cmmb_spi_src_buffer_all==NULL)
return INNO_GENERAL_ERROR;
cmmb_spi_src_buffer_all[0] =0;
#ifdef MT6589_CMMB_SPI_CONFIG
INNO_SPI_Mode(1);
#endif
ret = INNODev_xfer(NULL,cmmb_spi_src_buffer_all, 1);
*data=cmmb_spi_src_buffer_all[0];
return ret;
}
/*
* Write multi bytes to SPI bus without touching CS
*
* Parameter:
* buffer <in> : the buffer point to store data which will be write to spi bus
* len <in> : how many bytes will be write by SPI
*
*/
INNO_RET INNO_SPI_Write_Bytes_NoCS(unsigned char *buffer, int len)
{
INNO_RET ret = INNO_NO_ERROR;
unsigned char* tx_buf=NULL, *rx_buf=NULL;
if(len>CMMB_SPI_INTERFACE_MAX_PKT_LENGTH_PER_TIMES){
tx_buf = buffer;
rx_buf =NULL;
}
else{
if(cmmb_spi_src_buffer_all==NULL)
return INNO_GENERAL_ERROR;
if(buffer!=cmmb_spi_src_buffer_all)
memcpy(cmmb_spi_src_buffer_all,buffer,len);
tx_buf = cmmb_spi_src_buffer_all;
rx_buf =NULL;
}
ret = INNODev_xfer(tx_buf,rx_buf, len);
return ret;
}
