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dp: rx: mst: Added interrupt handlers.

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1) Down request for MST sideband messages TX to RX.
2) Down reply for MST sideband messages from RX to TX.

Signed-off-by: Andrei-Liviu Simion <andrei.simion@xilinx.com>
This commit is contained in:
Andrei-Liviu Simion 2015-02-20 18:02:38 -07:00 • committed by Nava kishore Manne
parent 8bbd926b0b
commit 40a6c28bcf
2 changed files with 78 additions and 0 deletions
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16
XilinxProcessorIPLib/drivers/dp/src/xdp.h
View file

@ -762,6 +762,18 @@ typedef struct {
passed to the training
pattern 3 callback
function. */
XDp_IntrHandler IntrDownReqHandler; /**< Callback function for down
request interrupts. */
void *IntrDownReqCallbackRef; /**< A pointer to the user data
passed to the down
request callback
function. */
XDp_IntrHandler IntrDownReplyHandler; /**< Callback function for down
reply interrupts. */
void *IntrDownReplyCallbackRef; /**< A pointer to the user data
passed to the down
reply callback
function. */
} XDp_Rx;
/**
@ -894,6 +906,10 @@ void XDp_RxSetIntrTp2Handler(XDp *InstancePtr,
XDp_IntrHandler CallbackFunc, void *CallbackRef);
void XDp_RxSetIntrTp3Handler(XDp *InstancePtr,
XDp_IntrHandler CallbackFunc, void *CallbackRef);
void XDp_RxSetIntrDownReqHandler(XDp *InstancePtr,
XDp_IntrHandler CallbackFunc, void *CallbackRef);
void XDp_RxSetIntrDownReplyHandler(XDp *InstancePtr,
XDp_IntrHandler CallbackFunc, void *CallbackRef);
/* xdp_mst.c: Multi-stream transport (MST) functions for enabling or disabling
* MST mode. */

62
XilinxProcessorIPLib/drivers/dp/src/xdp_intr.c
View file

@ -592,6 +592,62 @@ void XDp_RxSetIntrTp3Handler(XDp *InstancePtr,
InstancePtr->RxInstance.IntrTp3CallbackRef = CallbackRef;
}
/******************************************************************************/
/**
* This function installs a callback function for when a down request interrupt
* occurs.
*
* @param InstancePtr is a pointer to the XDp instance.
* @param CallbackFunc is the address to the callback function.
* @param CallbackRef is the user data item that will be passed to the
* callback function when it is invoked.
*
* @return None.
*
* @note None.
*
*******************************************************************************/
void XDp_RxSetIntrDownReqHandler(XDp *InstancePtr,
XDp_IntrHandler CallbackFunc, void *CallbackRef)
{
/* Verify arguments. */
Xil_AssertVoid(InstancePtr != NULL);
Xil_AssertVoid(XDp_GetCoreType(InstancePtr) == XDP_RX);
Xil_AssertVoid(CallbackFunc != NULL);
Xil_AssertVoid(CallbackRef != NULL);
InstancePtr->RxInstance.IntrDownReqHandler = CallbackFunc;
InstancePtr->RxInstance.IntrDownReqCallbackRef = CallbackRef;
}
/******************************************************************************/
/**
* This function installs a callback function for when a down reply interrupt
* occurs.
*
* @param InstancePtr is a pointer to the XDp instance.
* @param CallbackFunc is the address to the callback function.
* @param CallbackRef is the user data item that will be passed to the
* callback function when it is invoked.
*
* @return None.
*
* @note None.
*
*******************************************************************************/
void XDp_RxSetIntrDownReplyHandler(XDp *InstancePtr,
XDp_IntrHandler CallbackFunc, void *CallbackRef)
{
/* Verify arguments. */
Xil_AssertVoid(InstancePtr != NULL);
Xil_AssertVoid(XDp_GetCoreType(InstancePtr) == XDP_RX);
Xil_AssertVoid(CallbackFunc != NULL);
Xil_AssertVoid(CallbackRef != NULL);
InstancePtr->RxInstance.IntrDownReplyHandler = CallbackFunc;
InstancePtr->RxInstance.IntrDownReplyCallbackRef = CallbackRef;
}
/******************************************************************************/
/**
* This function is the interrupt handler for the XDp driver operating in TX
@ -738,4 +794,10 @@ static void XDp_RxInterruptHandler(XDp *InstancePtr)
InstancePtr->RxInstance.IntrExtPktHandler(
InstancePtr->RxInstance.IntrExtPktCallbackRef);
}
/* The TX has issued a down request; a sideband message is ready. */
if (IntrStatus & XDP_RX_INTERRUPT_CAUSE_DOWN_REQUEST_MASK) {
InstancePtr->RxInstance.IntrDownReqHandler(
InstancePtr->RxInstance.IntrDownReqCallbackRef);
}
}