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dptx: Allow introduction of AUX and sideband message latency delays.

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Signed-off-by: Andrei-Liviu Simion <andrei.simion@xilinx.com>
This commit is contained in:
Andrei-Liviu Simion 2014-08-17 18:02:12 -07:00 • committed by Jagannadha Sutradharudu Teki
parent 2ebd71bd56
commit adc89fae61
3 changed files with 18 additions and 0 deletions
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6
XilinxProcessorIPLib/drivers/dptx/src/xdptx.c
View file

@ -1302,6 +1302,10 @@ void XDptx_WaitUs(XDptx *InstancePtr, u32 MicroSeconds)
Xil_AssertVoid(InstancePtr != NULL);
Xil_AssertVoid(InstancePtr->IsReady == XIL_COMPONENT_IS_READY);
if (MicroSeconds == 0) {
return;
}
#if defined(__MICROBLAZE__)
if (InstancePtr->UserTimerWaitUs != NULL) {
/* Use the timer handler specified by the user for better
@ -2275,6 +2279,8 @@ static u32 XDptx_AuxCommon(XDptx *InstancePtr, u32 CmdType, u32 Address,
Request.CmdCode = XDPTX_AUX_CMD_I2C_WRITE_MOT;
}
XDptx_WaitUs(InstancePtr, InstancePtr->AuxDelayUs);
Status = XDptx_AuxRequest(InstancePtr, &Request);
if (Status != XST_SUCCESS) {
return Status;

8
XilinxProcessorIPLib/drivers/dptx/src/xdptx.h
View file

@ -725,6 +725,14 @@ typedef struct {
devices when the driver
is running in MST
mode. */
u32 AuxDelayUs; /**< Amount of latency in micro-
seconds to use between
AUX transactions. */
u32 SbMsgDelayUs; /**< Amount of latency in micro-
seconds to use between
sideband messages for
multi-stream transport
(MST) mode. */
XDptx_TimerHandler UserTimerWaitUs; /**< Custom user function for
delay/sleep. */
void *UserTimerPtr; /**< Pointer to a timer instance

4
XilinxProcessorIPLib/drivers/dptx/src/xdptx_mst.c
View file

@ -2007,6 +2007,8 @@ static u32 XDptx_SendSbMsg(XDptx *InstancePtr, XDptx_SidebandMsg *Msg)
XDptx_SidebandMsgBody *Body = &Msg->Body;
u8 Index;
XDptx_WaitUs(InstancePtr, InstancePtr->SbMsgDelayUs);
/* Add the header to the sideband message transaction. */
Msg->Header.MsgHeaderLength = 0;
AuxData[Msg->Header.MsgHeaderLength++] =
@ -2077,6 +2079,8 @@ static u32 XDptx_ReceiveSbMsg(XDptx *InstancePtr, XDptx_SidebandReply *SbReply)
SbReply->Length = 0;
do {
XDptx_WaitUs(InstancePtr, InstancePtr->SbMsgDelayUs);
/* Wait for a reply. */
Status = XDptx_WaitSbReply(InstancePtr);
if (Status != XST_SUCCESS) {