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dptx: Reuse common allocation function for clearing streams.

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Signed-off-by: Andrei-Liviu Simion <andrei.simion@xilinx.com>
This commit is contained in:
Andrei-Liviu Simion 2014-10-26 15:00:53 -07:00 • committed by Suneel Garapati
parent 6d036fb76b
commit b38c432ba3
1 changed files with 1 additions and 46 deletions
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47
XilinxProcessorIPLib/drivers/dptx/src/xdptx_mst.c
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@ -916,58 +916,13 @@ u32 XDptx_AllocatePayloadVcIdTable(XDptx *InstancePtr, u8 VcId, u8 Ts)
u32 XDptx_ClearPayloadVcIdTable(XDptx *InstancePtr)
{
u32 Status;
u8 AuxData[3];
u8 Index;
/* Verify arguments. */
Xil_AssertNonvoid(InstancePtr != NULL);
Xil_AssertNonvoid(InstancePtr->IsReady == XIL_COMPONENT_IS_READY);
/* Clear the payload table in the transmitter. */
for (Index = 0; Index < 64; Index++) {
XDptx_WriteReg(InstancePtr->Config.BaseAddr,
(XDPTX_VC_PAYLOAD_BUFFER_ADDR + (4 * Index)), 0);
}
XDptx_WaitUs(InstancePtr, 1000);
/* Clear the payload table in the immediate downstream branch device. */
/* Clear the VCP table update bit. */
AuxData[0] = 0x01;
Status = XDptx_AuxWrite(InstancePtr,
XDPTX_DPCD_PAYLOAD_TABLE_UPDATE_STATUS, 1, AuxData);
if (Status != XST_SUCCESS) {
/* The AUX write transaction failed. */
return Status;
}
/* Allocate VC with VcId. */
AuxData[0] = 0;
/* Start timeslot for VC with VcId. */
AuxData[1] = 0;
/* Timeslot count for VC with VcId. */
AuxData[2] = 0x3F;
Status = XDptx_AuxWrite(InstancePtr, XDPTX_DPCD_PAYLOAD_ALLOCATE_SET, 3,
AuxData);
if (Status != XST_SUCCESS) {
/* The AUX write transaction failed. */
return Status;
}
/* Wait for the VC table to be updated. */
do {
Status = XDptx_AuxRead(InstancePtr,
XDPTX_DPCD_PAYLOAD_TABLE_UPDATE_STATUS, 1, AuxData);
if (Status != XST_SUCCESS) {
/* The AUX read transaction failed. */
return Status;
}
} while ((AuxData[0] & 0x01) != 0x01);
XDptx_WaitUs(InstancePtr, 1000);
Status = XDptx_SendActTrigger(InstancePtr);
Status = XDptx_AllocatePayloadVcIdTable(InstancePtr, 0, 64);
if (Status != XST_SUCCESS) {
return Status;
}