blob: 9e8b9dcad288bb6b2c29cdba0c1af0201ce38e43 [file] [log] [blame]
/******************************************************************************
*
* Copyright (C) 2014 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,
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* Except as contained in this notice, the name of the Xilinx shall not be used
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* this Software without prior written authorization from Xilinx.
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******************************************************************************/
/*****************************************************************************/
/**
*
* @file xzdma_selftest.c
* @addtogroup zdma_v1_5
* @{
*
* This file contains the self-test function for the ZDMA core.
*
* <pre>
* MODIFICATION HISTORY:
*
* Ver Who Date Changes
* ----- ------ -------- ------------------------------------------------------
* 1.0 vns 2/27/15 First release
* </pre>
*
******************************************************************************/
/***************************** Include Files *********************************/
#include "xzdma.h"
/************************** Constant Definitions *****************************/
/***************** Macros (Inline Functions) Definitions *********************/
/**************************** Type Definitions *******************************/
/************************** Function Prototypes ******************************/
/************************** Variable Definitions *****************************/
/************************** Function Definitions *****************************/
/*****************************************************************************/
/**
*
* This file contains a diagnostic self-test function for the ZDMA driver.
* Refer to the header file xzdma.h for more detailed information.
*
* @param InstancePtr is a pointer to XZDma instance.
*
* @return
* - XST_SUCCESS if the test is successful.
* - XST_FAILURE if the test is failed.
*
* @note None.
*
******************************************************************************/
s32 XZDma_SelfTest(XZDma *InstancePtr)
{
u32 Data;
s32 Status;
Xil_AssertNonvoid(InstancePtr != NULL);
Data = XZDma_ReadReg(InstancePtr->Config.BaseAddress,
XZDMA_CH_CTRL0_OFFSET);
/* Changing DMA channel to over fetch */
XZDma_WriteReg(InstancePtr->Config.BaseAddress, XZDMA_CH_CTRL0_OFFSET,
(Data | XZDMA_CTRL0_OVR_FETCH_MASK));
if (((u32)XZDma_ReadReg(InstancePtr->Config.BaseAddress,
XZDMA_CH_CTRL0_OFFSET) & XZDMA_CTRL0_OVR_FETCH_MASK) !=
XZDMA_CTRL0_OVR_FETCH_MASK) {
Status = (s32)XST_FAILURE;
}
else {
Status = (s32)XST_SUCCESS;
}
/* Retrieving the change settings */
XZDma_WriteReg(InstancePtr->Config.BaseAddress, XZDMA_CH_CTRL0_OFFSET,
Data);
return Status;
}
/** @} */