2c8f92039d
Added initial support Xilinx Embedded Software. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
132 lines
4.5 KiB
C
Executable file
132 lines
4.5 KiB
C
Executable file
/******************************************************************************
|
|
*
|
|
* Copyright (C) 2002 - 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,
|
|
* 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 xwdttb_selftest.c
|
|
*
|
|
* Contains diagnostic self-test functions for the XWdtTb component.
|
|
*
|
|
* <pre>
|
|
* MODIFICATION HISTORY:
|
|
*
|
|
* Ver Who Date Changes
|
|
* ----- ---- -------- -----------------------------------------------
|
|
* 1.00b jhl 02/06/02 First release
|
|
* 1.10b mta 03/23/07 Updated to new coding style
|
|
* 2.00a ktn 10/22/09 Updated to use the HAL processor APIs/macros.
|
|
* </pre>
|
|
*
|
|
******************************************************************************/
|
|
|
|
/***************************** Include Files *********************************/
|
|
|
|
#include "xil_types.h"
|
|
#include "xil_assert.h"
|
|
#include "xil_io.h"
|
|
#include "xwdttb.h"
|
|
|
|
/************************** Constant Definitions *****************************/
|
|
|
|
#define XWT_MAX_SELFTEST_LOOP_COUNT 0x00010000
|
|
|
|
/**************************** Type Definitions *******************************/
|
|
|
|
|
|
/***************** Macros (Inline Functions) Definitions *********************/
|
|
|
|
|
|
/************************** Function Prototypes ******************************/
|
|
|
|
|
|
/************************** Variable Definitions *****************************/
|
|
|
|
|
|
/****************************************************************************/
|
|
/**
|
|
*
|
|
* Run a self-test on the timebase. This test verifies that the timebase is
|
|
* incrementing. The watchdog timer is not tested due to the time required
|
|
* to wait for the watchdog timer to expire. The time consumed by this test
|
|
* is dependant on the system clock and the configuration of the dividers in
|
|
* for the input clock of the timebase.
|
|
*
|
|
* @param InstancePtr is a pointer to the XWdtTb instance to be worked on.
|
|
*
|
|
* @return
|
|
* - XST_SUCCESS if self-test was successful
|
|
* - XST_WDTTB_TIMER_FAILED if the timebase is not incrementing
|
|
*
|
|
* @note None.
|
|
*
|
|
******************************************************************************/
|
|
int XWdtTb_SelfTest(XWdtTb *InstancePtr)
|
|
{
|
|
int LoopCount;
|
|
u32 TbrValue1;
|
|
u32 TbrValue2;
|
|
|
|
/*
|
|
* Assert to ensure the inputs are valid and the instance has been
|
|
* initialized
|
|
*/
|
|
Xil_AssertNonvoid(InstancePtr != NULL);
|
|
Xil_AssertNonvoid(InstancePtr->IsReady == XIL_COMPONENT_IS_READY);
|
|
|
|
/*
|
|
* Read the timebase register twice to start the test
|
|
*/
|
|
TbrValue1 = XWdtTb_ReadReg(InstancePtr->RegBaseAddress, XWT_TBR_OFFSET);
|
|
TbrValue2 = XWdtTb_ReadReg(InstancePtr->RegBaseAddress, XWT_TBR_OFFSET);
|
|
|
|
/*
|
|
* Read the timebase register for a number of iterations or until it
|
|
* increments, which ever occurs first
|
|
*/
|
|
for (LoopCount = 0;
|
|
((LoopCount <= XWT_MAX_SELFTEST_LOOP_COUNT) &&
|
|
(TbrValue2 == TbrValue1)); LoopCount++) {
|
|
TbrValue2 = XWdtTb_ReadReg(InstancePtr->RegBaseAddress,
|
|
XWT_TBR_OFFSET);
|
|
}
|
|
|
|
/*
|
|
* If the timebase register changed the test is successful, otherwise it
|
|
* failed
|
|
*/
|
|
if (TbrValue2 != TbrValue1) {
|
|
return XST_SUCCESS;
|
|
}
|
|
else {
|
|
return XST_WDTTB_TIMER_FAILED;
|
|
}
|
|
}
|