128 lines
4.7 KiB
C
128 lines
4.7 KiB
C
/*******************************************************************************
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*
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* Copyright (C) 2014 - 2015 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 xdptx_selftest_example.c
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*
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* Contains a design example using the XDptx driver. It performs a self test on
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* the DisplayPort TX core that will compare many of the DisplayPort TX core's
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* registers against their default reset values.
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*
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* @note None.
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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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* 1.0 als 06/17/14 Initial creation.
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* </pre>
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*
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*******************************************************************************/
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/******************************* Include Files ********************************/
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#include "xdptx_example_common.h"
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/**************************** Function Prototypes *****************************/
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u32 Dptx_SelfTestExample(XDptx *InstancePtr, u16 DeviceId);
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/**************************** Function Definitions ****************************/
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/******************************************************************************/
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/**
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* This function is the main function of the XDptx selftest example.
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*
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* @param None.
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*
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* @return
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* - XST_SUCCESS if the self test example passed.
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* - XST_FAILURE if the self test example was unsuccessful - the
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* DisplayPort TX's registers do not match their default values
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* or no DisplayPort TX instance was found.
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*
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* @note None.
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*
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*******************************************************************************/
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int main(void)
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{
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u32 Status;
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Status = Dptx_SelfTestExample(&DptxInstance, DPTX_DEVICE_ID);
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if (Status != XST_SUCCESS) {
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xil_printf("XDptx_SelfTest failed, check register values.\n");
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return XST_FAILURE;
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}
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xil_printf("XDptx_SelfTest passed.\n");
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return Status;
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}
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/******************************************************************************/
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/**
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* The main entry point for the selftest example using the XDptx driver. This
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* function will check whether or not the DisplayPort TX's registers are at
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* their default reset values to ensure that the core is in a known and working
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* state.
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*
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* @param InstancePtr is a pointer to the XDptx instance.
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* @param DeviceId is the unique device ID of the DisplayPort TX core
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* instance.
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*
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* @return
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* - XST_SUCCESS if the DisplayPort TX's registers are at their
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* default reset values.
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* - XST_FAILURE if the DisplayPort TX's registers do not match
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* their default values or no DisplayPort TX instance was found.
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*
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* @note None.
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*
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*******************************************************************************/
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u32 Dptx_SelfTestExample(XDptx *InstancePtr, u16 DeviceId)
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{
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u32 Status;
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XDptx_Config *ConfigPtr;
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/* Obtain the device configuration for the DisplayPort TX core. */
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ConfigPtr = XDptx_LookupConfig(DeviceId);
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if (!ConfigPtr) {
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return XST_FAILURE;
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}
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/* Copy the device configuration into the InstancePtr's Config
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* structure. */
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XDptx_CfgInitialize(InstancePtr, ConfigPtr, ConfigPtr->BaseAddr);
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/* Run the self test. */
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Status = XDptx_SelfTest(InstancePtr);
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return Status;
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}
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