/**************************************************************************************************
* @fn HalSpiWriteRead
*
* @brief Read a buffer from the SPI. Half duplex API.
*
* @param port - SPI port.
* pBuf - Pointer to the buffer that will be read to.
* len - Number of bytes to read.
*
* @return STATUS
**************************************************************************************************/
int HalSpiRead(uint8 port, uint8 *pBuf, uint8 len)
{
int ret;
if (useFullDuplexAPI == TRUE)
{
ret = HalSpiWriteRead(port, pBuf, len);
}
else
{
#ifdef __BIG_DEBUG__
uint8 i;
#endif
(void)port;
#ifdef __DEBUG_TIME__
if ( (__DEBUG_TIME_ACTIVE == TRUE) && (__BIG_DEBUG_ACTIVE == TRUE) )
{
static struct timespec prevTime;
time_printf_always_localized(" ----- READ SPI LOCK MUTEX ---------\n", NULL, NULL, &prevTime);
}
#endif //(defined __DEBUG_TIME__)
pthread_mutex_lock(&spiMutex1);
#ifdef __BIG_DEBUG__
printf("SPI: Receive ...");
for (i = 0 ; i < len; i++ ) printf(" 0x%.2x",rx[i]);
printf("\n");
#endif
ret = read(spiDevFd, pBuf, len);
if (ret < 0 )
{
perror("can't read from SPI \n");
npi_ipc_errno = NPI_LNX_ERROR_HAL_SPI_READ_FAILED;
ret = NPI_LNX_FAILURE;
}
else if (ret == len)
{
ret = NPI_LNX_SUCCESS;
}
else
{
npi_ipc_errno = NPI_LNX_ERROR_HAL_SPI_READ_FAILED_INCORRECT_NUM_OF_BYTES;
ret = NPI_LNX_FAILURE;
}
#ifdef __DEBUG_TIME__
if ( (__DEBUG_TIME_ACTIVE == TRUE) && (__BIG_DEBUG_ACTIVE == TRUE) )
{
static struct timespec prevTime;
time_printf_always_localized(" ----- READ SPI DONE ---------------\n", NULL, NULL, &prevTime);
}
#endif //(defined __DEBUG_TIME__)
pthread_mutex_unlock(&spiMutex1);
}
return ret;
}
/**************************************************************************************************
* @fn HalSpiWriteRead
*
* @brief Read a buffer from the SPI. Half duplex API.
*
* @param port - SPI port.
* pBuf - Pointer to the buffer that will be read to.
* len - Number of bytes to read.
*
* @return STATUS
**************************************************************************************************/
int HalSpiRead(uint8 port, uint8 *pBuf, uint8 len)
{
int ret;
if (useFullDuplexAPI == TRUE)
{
ret = HalSpiWriteRead(port, pBuf, len);
}
else
{
#ifdef __BIG_DEBUG__
uint8 i;
#endif
(void)port;
#ifdef __DEBUG_TIME__
gettimeofday(&curTime, NULL);
long int diffPrev;
int t = 0;
if (curTime.tv_usec >= prevTime.tv_usec)
{
diffPrev = curTime.tv_usec - prevTime.tv_usec;
}
else
{
diffPrev = (curTime.tv_usec + 1000000) - prevTime.tv_usec;
t = 1;
}
prevTime = curTime;
int hours = ((curTime.tv_sec - startTime.tv_sec) - ((curTime.tv_sec - startTime.tv_sec) % 3600))/3600;
int minutes = ((curTime.tv_sec - startTime.tv_sec) - ((curTime.tv_sec - startTime.tv_sec) % 60))/60;
debug_printf("[%.3d:%.2d:%.2ld.%.6ld (+%ld.%6ld)] ----- READ SPI LOCK MUTEX ---------\n",
hours, // hours
minutes, // minutes
(curTime.tv_sec - startTime.tv_sec) % 60, // seconds
curTime.tv_usec,
curTime.tv_sec - prevTime.tv_sec - t,
diffPrev);
#endif //(defined __DEBUG_TIME__)
pthread_mutex_lock(&spiMutex1);
#ifdef __BIG_DEBUG__
printf("SPI: Receive ...");
for (i = 0 ; i < len; i++ ) printf(" 0x%.2x",rx[i]);
printf("\n");
#endif
ret = read(spiDevFd, pBuf, len);
if (ret < 0 )
{
perror("can't read from SPI \n");
npi_ipc_errno = NPI_LNX_ERROR_HAL_SPI_READ_FAILED;
ret = NPI_LNX_FAILURE;
}
else if (ret == len)
{
ret = NPI_LNX_SUCCESS;
}
else
{
npi_ipc_errno = NPI_LNX_ERROR_HAL_SPI_READ_FAILED_INCORRECT_NUM_OF_BYTES;
ret = NPI_LNX_FAILURE;
}
#ifdef __DEBUG_TIME__
gettimeofday(&curTime, NULL);
t = 0;
if (curTime.tv_usec >= prevTime.tv_usec)
{
diffPrev = curTime.tv_usec - prevTime.tv_usec;
}
else
{
diffPrev = (curTime.tv_usec + 1000000) - prevTime.tv_usec;
t = 1;
}
prevTime = curTime;
hours = ((curTime.tv_sec - startTime.tv_sec) - ((curTime.tv_sec - startTime.tv_sec) % 3600))/3600;
minutes = ((curTime.tv_sec - startTime.tv_sec) - ((curTime.tv_sec - startTime.tv_sec) % 60))/60;
debug_printf("[%.3d:%.2d:%.2ld.%.6ld (+%ld.%6ld)] ----- READ SPI DONE ---------------\n",
hours, // hours
minutes, // minutes
(curTime.tv_sec - startTime.tv_sec) % 60, // seconds
curTime.tv_usec,
curTime.tv_sec - prevTime.tv_sec - t,
diffPrev);
#endif //(defined __DEBUG_TIME__)
pthread_mutex_unlock(&spiMutex1);
}
return ret;
}
