blob: da1973a2d9d52928171a9d4e447807421fe22da9 [file] [log] [blame]
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/*****************************************************************************/
/**
*
* @file xgpiops_selftest.c
* @addtogroup gpiops_v3_1
* @{
*
* This file contains a diagnostic self-test function for the XGpioPs driver.
*
* Read xgpiops.h file for more information.
*
* <pre>
* MODIFICATION HISTORY:
*
* Ver Who Date Changes
* ----- ---- -------- -----------------------------------------------
* 1.00a sv 01/18/10 First Release
* 3.00 kvn 02/13/15 Modified code for MISRA-C:2012 compliance.
* </pre>
*
*****************************************************************************/
/***************************** Include Files ********************************/
#include "xstatus.h"
#include "xgpiops.h"
/************************** Constant Definitions ****************************/
/**************************** Type Definitions ******************************/
/***************** Macros (Inline Functions) Definitions ********************/
/************************** Variable Definitions ****************************/
/************************** Function Prototypes *****************************/
/*****************************************************************************/
/**
*
* This function runs a self-test on the GPIO driver/device. This function
* does a register read/write test on some of the Interrupt Registers.
*
* @param InstancePtr is a pointer to the XGpioPs instance.
*
* @return
* - XST_SUCCESS if the self-test passed.
* - XST_FAILURE otherwise.
*
*
******************************************************************************/
s32 XGpioPs_SelfTest(XGpioPs *InstancePtr)
{
s32 Status = XST_SUCCESS;
u32 IntrEnabled;
u32 CurrentIntrType = 0U;
u32 CurrentIntrPolarity = 0U;
u32 CurrentIntrOnAny = 0U;
u32 IntrType = 0U;
u32 IntrPolarity = 0U;
u32 IntrOnAny = 0U;
u32 IntrTestValue = 0x22U;
Xil_AssertNonvoid(InstancePtr != NULL);
Xil_AssertNonvoid(InstancePtr->IsReady == XIL_COMPONENT_IS_READY);
/* Disable the Interrupts for Bank 0 . */
IntrEnabled = XGpioPs_IntrGetEnabled(InstancePtr, XGPIOPS_BANK0);
XGpioPs_IntrDisable(InstancePtr, XGPIOPS_BANK0, IntrEnabled);
/*
* Get the Current Interrupt properties for Bank 0.
* Set them to a known value, read it back and compare.
*/
XGpioPs_GetIntrType(InstancePtr, XGPIOPS_BANK0, &CurrentIntrType,
&CurrentIntrPolarity, &CurrentIntrOnAny);
XGpioPs_SetIntrType(InstancePtr, XGPIOPS_BANK0, IntrTestValue,
IntrTestValue, IntrTestValue);
XGpioPs_GetIntrType(InstancePtr, XGPIOPS_BANK0, &IntrType,
&IntrPolarity, &IntrOnAny);
if ((IntrType != IntrTestValue) && (IntrPolarity != IntrTestValue) &&
(IntrOnAny != IntrTestValue)) {
Status = XST_FAILURE;
}
/*
* Restore the contents of all the interrupt registers modified in this
* test.
*/
XGpioPs_SetIntrType(InstancePtr, XGPIOPS_BANK0, CurrentIntrType,
CurrentIntrPolarity, CurrentIntrOnAny);
XGpioPs_IntrEnable(InstancePtr, XGPIOPS_BANK0, IntrEnabled);
return Status;
}
/** @} */