/****************************************************************************** * * Copyright (C) 2015 Xilinx, Inc. All rights reserved. * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * Use of the Software is limited solely to applications: * (a) running on a Xilinx device, or * (b) that interact with a Xilinx device through a bus or interconnect. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * XILINX CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. * * Except as contained in this notice, the name of the Xilinx shall not be used * in advertising or otherwise to promote the sale, use or other dealings in * this Software without prior written authorization from Xilinx. * ******************************************************************************/ /*****************************************************************************/ /** * * @file xaxidma_selftest.c * * Contains diagnostic/self-test functions for the XAxiDma component. * *
* MODIFICATION HISTORY:
*
* Ver   Who  Date     Changes
* ----- ---- -------- -----------------------------------------------
* 8.1 	adk  29/01/15 First release
* 
* ******************************************************************************/ /***************************** Include Files *********************************/ #include "xil_io.h" #include "xaxidma.h" /************************** Constant Definitions *****************************/ #define XAXIDMA_RESET_TIMEOUT 500 /**************************** Type Definitions *******************************/ /***************** Macros (Inline Functions) Definitions *********************/ /************************** Function Prototypes ******************************/ /************************** Variable Definitions *****************************/ /*****************************************************************************/ /** * * Runs a self-test on the driver/device. This test perform a * reset of the DMA device and checks the device is coming out of reset or not * * @param InstancePtr is a pointer to the XAxiDma instance. * * @return * - XST_SUCCESS if self-test was successful * - XST_FAILURE if the device is not coming out of reset. * * @note * None. * ******************************************************************************/ int XAxiDma_Selftest(XAxiDma * InstancePtr) { int TimeOut; Xil_AssertNonvoid(InstancePtr != NULL); XAxiDma_Reset(InstancePtr); /* At the initialization time, hardware should finish reset quickly */ TimeOut = XAXIDMA_RESET_TIMEOUT; while (TimeOut) { if(XAxiDma_ResetIsDone(InstancePtr)) { break; } TimeOut -= 1; } if (!TimeOut) return XST_FAILURE; return XST_SUCCESS; }