As I understand it, the DMA_getStatus function is supposed to :
This function return the status whether data transfer has done or not
as per passed CSL_DMA_Handle.
However, the inline code in csl_dma.h appears to check the Enable bit instead of the Status bit of the Transfer Control Register. For example
static inline
Int DMA_getStatus (
/** Pointer to the object that holds reference to the
* DMA handle object.
*/
CSL_DMA_Handle hDMA
)
{
Int status;
Uint16 chanNum;if(hDMA != NULL)
{
chanNum = hDMA->chanNum;while(chanNum >= CSL_DMA_PER_CNT)
{
chanNum = chanNum - CSL_DMA_PER_CNT;
}switch((CSL_DMAChanNum)chanNum)
{
case CSL_DMA_CHAN0:
status = CSL_FEXT(hDMA->dmaRegs->DMACH0TCR2, DMA_DMACH0TCR2_EN);
break;
case CSL_DMA_CHAN1:
status = CSL_FEXT(hDMA->dmaRegs->DMACH1TCR2, DMA_DMACH1TCR2_EN);
break;
case CSL_DMA_CHAN2:
status = CSL_FEXT(hDMA->dmaRegs->DMACH2TCR2, DMA_DMACH2TCR2_EN);
break;
case CSL_DMA_CHAN3:
status = CSL_FEXT(hDMA->dmaRegs->DMACH3TCR2, DMA_DMACH3TCR2_EN);
break;
}
}
else
{
status = CSL_ESYS_BADHANDLE;
}return status;
}
I can't seem to find the #define for DMA_DMACH1TCR2_EN in the csl, but it sure looks like it is checking the Enable bit and not the Status bit.
Can someone provide guidance on this?
