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ZDMA: Modified XZDma_CreateBDList API

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Corrected destination descriptor address calculation in
XZDma_CreateBDList API.

Signed-off-by: VNSL Durga <vnsldurg@xilinx.com>
Acked by: Punnaiah Choudary Kalluri <punnaia@xilinx.com>
This commit is contained in:
VNSL Durga 2015-10-16 17:47:54 +05:30 • committed by Nava kishore Manne
parent c04b550bca
commit 743a656e2c
1 changed files with 10 additions and 13 deletions
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23
XilinxProcessorIPLib/drivers/zdma/src/xzdma.c
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@ -45,6 +45,8 @@
* Ver Who Date Changes
* ----- ------ -------- ------------------------------------------------------
* 1.0 vns 2/27/15 First release
* vns 16/10/15 Corrected Destination descriptor addresss calculation
* in XZDma_CreateBDList API
* </pre>
*
******************************************************************************/
@ -248,8 +250,7 @@ s32 XZDma_SetMode(XZDma *InstancePtr, u8 IsSgDma, XZDma_Mode Mode)
u32 XZDma_CreateBDList(XZDma *InstancePtr, XZDma_DscrType TypeOfDscr,
UINTPTR Dscr_MemPtr, u32 NoOfBytes)
{
XZDma_LiDscr *LocalLinearPtr = (XZDma_LiDscr *)(void *)Dscr_MemPtr;
XZDma_LlDscr *LocalLinklistPtr = (XZDma_LlDscr *)(void *)Dscr_MemPtr;
u32 Size;
/* Verify arguments. */
Xil_AssertNonvoid(InstancePtr != NULL);
@ -261,20 +262,16 @@ u32 XZDma_CreateBDList(XZDma *InstancePtr, XZDma_DscrType TypeOfDscr,
InstancePtr->Descriptor.DscrType = TypeOfDscr;
if (TypeOfDscr == XZDMA_LINEAR) {
InstancePtr->Descriptor.SrcDscrPtr = (void *)Dscr_MemPtr;
LocalLinearPtr = ((LocalLinearPtr + (NoOfBytes >> 1)) + 1U);
InstancePtr->Descriptor.DstDscrPtr = (void *)LocalLinearPtr;
InstancePtr->Descriptor.DscrCount =
(NoOfBytes >> 1) / sizeof(XZDma_LiDscr);
Size = sizeof(XZDma_LiDscr);
}
else {
InstancePtr->Descriptor.SrcDscrPtr = (void *)Dscr_MemPtr;
LocalLinklistPtr =
((LocalLinklistPtr + (NoOfBytes >> 1)) + 1U);
InstancePtr->Descriptor.DstDscrPtr = (void *)LocalLinklistPtr;
InstancePtr->Descriptor.DscrCount =
(NoOfBytes >> 1) / sizeof(XZDma_LlDscr);
Size = sizeof(XZDma_LlDscr);
}
InstancePtr->Descriptor.DscrCount =
(NoOfBytes >> 1) / Size;
InstancePtr->Descriptor.SrcDscrPtr = (void *)Dscr_MemPtr;
InstancePtr->Descriptor.DstDscrPtr =
(void *)Dscr_MemPtr + (Size * InstancePtr->Descriptor.DscrCount);
Xil_DCacheInvalidateRange((INTPTR)Dscr_MemPtr, NoOfBytes);