207 lines
6.9 KiB
C
Executable file
207 lines
6.9 KiB
C
Executable file
/******************************************************************************
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*
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* Copyright (C) 2014 Xilinx, Inc. All rights reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* Use of the Software is limited solely to applications:
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* (a) running on a Xilinx device, or
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* (b) that interact with a Xilinx device through a bus or interconnect.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* XILINX CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
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* OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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* Except as contained in this notice, the name of the Xilinx shall not be used
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* in advertising or otherwise to promote the sale, use or other dealings in
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* this Software without prior written authorization from Xilinx.
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*
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******************************************************************************/
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/*****************************************************************************/
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/**
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*
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* @file xtpg_intr.c
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*
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* This file contains interrupt related functions of the TPG core.
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* Please see xtpg.h for more details of the driver.
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*
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* <pre>
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* MODIFICATION HISTORY:
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*
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* Ver Who Date Changes
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* ----- ----- ------- --------------------------------------------------
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* 3.0 adk 02/19/14 First Release
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* Implemented the following functions:
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* XTpg_IntrHandler and XTpg_SetCallBack.
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*
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* </pre>
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*
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******************************************************************************/
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/***************************** Include Files *********************************/
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#include "xtpg.h"
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/************************** Constant Definitions *****************************/
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/***************** Marcos (Inline Functions) Definitions *********************/
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/**************************** Type Definitions *******************************/
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/************************** Function Prototypes ******************************/
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/************************** Variable Definitions *****************************/
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/************************** Function Definitions *****************************/
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/*****************************************************************************/
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/**
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*
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* This function is the interrupt handler for the TPG driver.
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*
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* This handler reads the pending interrupt from the STATUS register,
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* determines the source of the interrupts and calls the respective
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* callbacks for the interrupts that are enabled in IRQ_ENABLE register,
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* and finally clears the interrupts.
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*
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* The application is responsible for connecting this function to the interrupt
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* system. Application beyond this driver is also responsible for providing
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* callbacks to handle interrupts and installing the callbacks using
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* XTpg_SetCallBack() during initialization phase.
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*
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* @param InstancePtr is a pointer to the XTpg instance that
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* just interrupted.
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*
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* @return None.
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*
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* @note Interrupt interface should be enabled.
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*
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******************************************************************************/
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void XTpg_IntrHandler(void *InstancePtr)
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{
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u32 PendingIntr;
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u32 ErrorStatus;
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XTpg *XTpgPtr = NULL;
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XTpgPtr = (XTpg *) ((void *)InstancePtr);
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/* Verify Arguments. */
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Xil_AssertVoid(XTpgPtr != NULL);
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Xil_AssertVoid(XTpgPtr->IsReady == (u32)(XIL_COMPONENT_IS_READY));
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Xil_AssertVoid(XTpgPtr->Config.HasIntcIf != (u16)0x0);
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/* Get pending interrupts */
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PendingIntr = (u32)XTpg_IntrGetPending(XTpgPtr);
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/* A Slave error interrupt has been happened */
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if (((PendingIntr) & (XTPG_IXR_SE_MASK)) ==
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(XTPG_IXR_SE_MASK)) {
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ErrorStatus = (PendingIntr) & ((u32)(XTPG_IXR_SE_MASK));
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XTpgPtr->ErrCallBack(XTpgPtr->ErrRef, ErrorStatus);
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}
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/* A Processing Start interrupt has occurred */
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if (((PendingIntr) & (XTPG_IXR_PROCS_STARTED_MASK)) ==
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(XTPG_IXR_PROCS_STARTED_MASK)) {
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XTpgPtr->ProcStartCallBack(XTpgPtr->ProcStartRef);
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}
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/* A Frame Done interrupt has occurred */
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if (((PendingIntr) & (XTPG_IXR_EOF_MASK)) == (XTPG_IXR_EOF_MASK)) {
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XTpgPtr->FrameDoneCallBack(XTpgPtr->FrameDoneRef);
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}
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/* Clear pending interrupts */
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XTpg_IntrClear(XTpgPtr, PendingIntr);
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}
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/*****************************************************************************/
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/**
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*
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* This function installs an asynchronous callback function for the given
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* HandlerType.
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*
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* <pre>
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* HandlerType Callback Function Type
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* ----------------------- ----------------------
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* XTPG_HANDLER_FRAMEDONE FrameDoneCallBack
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* XTPG_HANDLER_PROCSTART ProcStartCallBack
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* XTPG_HANDLER_ERROR ErrCallBack
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*
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* </pre>
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*
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* @param InstancePtr is a pointer to the XTpg instance to be worked on.
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* @param HandlerType specifies which callback is to be attached.
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* @param CallBackFunc is the address of the callback function.
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* @param CallBackRef is a user data item that will be passed to the
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* callback function when it is invoked.
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*
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* @return
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* - XST_SUCCESS when handler is installed.
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* - XST_INVALID_PARAM when HandlerType is invalid.
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*
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* @note Invoking this function for a handler that already has been
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* installed replaces it with the new handler.
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*
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******************************************************************************/
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int XTpg_SetCallBack(XTpg *InstancePtr, u32 HandlerType,
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void *CallBackFunc, void *CallBackRef)
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{
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int Status;
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/* Verify arguments. */
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Xil_AssertNonvoid(InstancePtr != NULL);
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Xil_AssertNonvoid(InstancePtr->IsReady ==
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(u32)(XIL_COMPONENT_IS_READY));
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Xil_AssertNonvoid(CallBackFunc != NULL);
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Xil_AssertNonvoid(CallBackRef != NULL);
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Xil_AssertNonvoid((HandlerType >= XTPG_HANDLER_PROCSTART) &&
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(HandlerType <= XTPG_HANDLER_ERROR));
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/* Setting the handlerType */
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switch (HandlerType) {
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case XTPG_HANDLER_PROCSTART:
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InstancePtr->ProcStartCallBack =
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(XTpg_CallBack)((void *)CallBackFunc);
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InstancePtr->ProcStartRef = CallBackRef;
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Status = (XST_SUCCESS);
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break;
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case XTPG_HANDLER_FRAMEDONE:
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InstancePtr->FrameDoneCallBack =
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(XTpg_CallBack)((void *)CallBackFunc);
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InstancePtr->FrameDoneRef = CallBackRef;
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Status = (XST_SUCCESS);
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break;
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case XTPG_HANDLER_ERROR:
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InstancePtr->ErrCallBack =
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(XTpg_ErrorCallBack)((void *)CallBackFunc);
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InstancePtr->ErrRef = CallBackRef;
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Status = (XST_SUCCESS);
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break;
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default:
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Status = (XST_INVALID_PARAM);
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break;
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}
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return Status;
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}
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