
Added initial support Xilinx Embedded Software. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
251 lines
7.5 KiB
C
Executable file
251 lines
7.5 KiB
C
Executable file
/******************************************************************************
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*
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* Copyright (C) 2002 - 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 xintc_tapp_example.c
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*
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* This file contains a self test example using the Interrupt Controller driver
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* (XIntc) and hardware device. Please reference other device driver examples to
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* see more examples of how the Intc and interrupts can be used by a software
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* application.
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*
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* This example shows the use of the Interrupt Controller both with a PowerPC405
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* and MicroBlaze processor.
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*
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* The TestApp Gen utility uses this file to perform the self test and setup
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* of Intc for interrupts.
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*
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* @note
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*
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* None
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*
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* <pre>
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*
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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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* 1.00a sv 06/29/05 Created for Test App Integration
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* 1.00c sn 05/09/06 Added Interrupt Setup Function
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* 2.00a ktn 10/20/09 Updated to use HAL Processor APIs and minor changes as
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* per coding guidelines.
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* </pre>
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******************************************************************************/
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/***************************** Include Files *********************************/
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#include "xparameters.h"
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#include "xstatus.h"
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#include "xintc.h"
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#include "xil_exception.h"
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/************************** Constant Definitions *****************************/
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/*
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* The following constants map to the XPAR parameters created in the
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* xparameters.h file. They are defined here such that a user can easily
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* change all the needed parameters in one place. This definition is not
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* included if the example is generated from the TestAppGen test tool.
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*/
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#ifndef TESTAPP_GEN
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#define INTC_DEVICE_ID XPAR_INTC_0_DEVICE_ID
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#endif
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/**************************** Type Definitions *******************************/
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/***************** Macros (Inline Functions) Definitions *********************/
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/************************** Function Prototypes ******************************/
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int IntcSelfTestExample(u16 DeviceId);
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int IntcInterruptSetup(XIntc *IntcInstancePtr, u16 DeviceId);
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/************************** Variable Definitions *****************************/
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static XIntc InterruptController; /* Instance of the Interrupt Controller */
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/*****************************************************************************/
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/**
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*
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* This is the main function for the Interrupt Controller example. This
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* function is not included if the example is generated from the TestAppGen test
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* tool.
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*
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* @param None.
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*
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* @return XST_SUCCESS to indicate success, otherwise XST_FAILURE.
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*
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* @note None.
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*
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******************************************************************************/
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#ifndef TESTAPP_GEN
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int main(void)
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{
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int Status;
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/*
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* Run the Intc example , specify the Device ID generated in
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* xparameters.h.
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*/
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Status = IntcSelfTestExample(INTC_DEVICE_ID);
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if (Status != XST_SUCCESS) {
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return XST_FAILURE;
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}
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return XST_SUCCESS;
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}
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#endif
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/*****************************************************************************/
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/**
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*
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* This function runs a self-test on the driver/device. This is a destructive
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* test. This function is an example of how to use the interrupt controller
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* driver component (XIntc) and the hardware device. This function is designed
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* to work without any hardware devices to cause interrupts. It may not return
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* if the interrupt controller is not properly connected to the processor in
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* either software or hardware.
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*
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* This function relies on the fact that the interrupt controller hardware
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* has come out of the reset state such that it will allow interrupts to be
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* simulated by the software.
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*
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* @param DeviceId is device ID of the Interrupt Controller Device,
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* typically XPAR_<INTC_instance>_DEVICE_ID value from
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* xparameters.h.
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*
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* @return XST_SUCCESS to indicate success, otherwise XST_FAILURE.
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*
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* @note None.
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*
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******************************************************************************/
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int IntcSelfTestExample(u16 DeviceId)
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{
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int Status;
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/*
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* Initialize the interrupt controller driver so that it is ready to use.
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*/
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Status = XIntc_Initialize(&InterruptController, DeviceId);
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if (Status != XST_SUCCESS) {
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return XST_FAILURE;
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}
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/*
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* Perform a self-test to ensure that the hardware was built correctly.
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*/
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Status = XIntc_SelfTest(&InterruptController);
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if (Status != XST_SUCCESS) {
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return XST_FAILURE;
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}
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return XST_SUCCESS;
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}
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/*****************************************************************************/
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/**
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*
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* This function is used by the TestAppGen generated application to setup
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* the interrupt controller.
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*
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* @param IntcInstancePtr is the reference to the Interrupt Controller
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* instance.
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* @param DeviceId is device ID of the Interrupt Controller Device,
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* typically XPAR_<INTC_instance>_DEVICE_ID value from
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* xparameters.h.
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*
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* @return XST_SUCCESS to indicate success, otherwise XST_FAILURE.
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*
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* @note None.
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*
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******************************************************************************/
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int IntcInterruptSetup(XIntc *IntcInstancePtr, u16 DeviceId)
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{
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int Status;
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/*
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* Initialize the interrupt controller driver so that it is
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* ready to use.
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*/
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Status = XIntc_Initialize(IntcInstancePtr, DeviceId);
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if (Status != XST_SUCCESS) {
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return XST_FAILURE;
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}
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/*
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* Perform a self-test to ensure that the hardware was built correctly.
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*/
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Status = XIntc_SelfTest(IntcInstancePtr);
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if (Status != XST_SUCCESS) {
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return XST_FAILURE;
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}
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/*
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* Initialize the exception table.
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*/
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Xil_ExceptionInit();
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/*
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* Register the interrupt controller handler with the exception table.
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*/
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Xil_ExceptionRegisterHandler(XIL_EXCEPTION_ID_INT,
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(Xil_ExceptionHandler)XIntc_DeviceInterruptHandler,
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(void*) 0);
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/*
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* Enable exceptions.
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*/
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Xil_ExceptionEnable();
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/*
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* Start the interrupt controller such that interrupts are enabled for
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* all devices that cause interrupts.
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*/
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Status = XIntc_Start(IntcInstancePtr, XIN_REAL_MODE);
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if (Status != XST_SUCCESS) {
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return XST_FAILURE;
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}
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return XST_SUCCESS;
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}
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