1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
|
/******************************************************************************
*
* (c) Copyright 2010-14 Xilinx, Inc. All rights reserved.
*
* This file contains confidential and proprietary information of Xilinx, Inc.
* and is protected under U.S. and international copyright and other
* intellectual property laws.
*
* DISCLAIMER
* This disclaimer is not a license and does not grant any rights to the
* materials distributed herewith. Except as otherwise provided in a valid
* license issued to you by Xilinx, and to the maximum extent permitted by
* applicable law: (1) THESE MATERIALS ARE MADE AVAILABLE "AS IS" AND WITH ALL
* FAULTS, AND XILINX HEREBY DISCLAIMS ALL WARRANTIES AND CONDITIONS, EXPRESS,
* IMPLIED, OR STATUTORY, INCLUDING BUT NOT LIMITED TO WARRANTIES OF
* MERCHANTABILITY, NON-INFRINGEMENT, OR FITNESS FOR ANY PARTICULAR PURPOSE;
* and (2) Xilinx shall not be liable (whether in contract or tort, including
* negligence, or under any other theory of liability) for any loss or damage
* of any kind or nature related to, arising under or in connection with these
* materials, including for any direct, or any indirect, special, incidental,
* or consequential loss or damage (including loss of data, profits, goodwill,
* or any type of loss or damage suffered as a result of any action brought by
* a third party) even if such damage or loss was reasonably foreseeable or
* Xilinx had been advised of the possibility of the same.
*
* CRITICAL APPLICATIONS
* Xilinx products are not designed or intended to be fail-safe, or for use in
* any application requiring fail-safe performance, such as life-support or
* safety devices or systems, Class III medical devices, nuclear facilities,
* applications related to the deployment of airbags, or any other applications
* that could lead to death, personal injury, or severe property or
* environmental damage (individually and collectively, "Critical
* Applications"). Customer assumes the sole risk and liability of any use of
* Xilinx products in Critical Applications, subject only to applicable laws
* and regulations governing limitations on product liability.
*
* THIS COPYRIGHT NOTICE AND DISCLAIMER MUST BE RETAINED AS PART OF THIS FILE
* AT ALL TIMES.
*
******************************************************************************/
/*****************************************************************************/
/**
*
* @file xgpiops_selftest.c
*
* 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
* </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.
*
*
******************************************************************************/
int XGpioPs_SelfTest(XGpioPs *InstancePtr)
{
int Status = XST_SUCCESS;
u32 IntrEnabled;
u32 CurrentIntrType;
u32 CurrentIntrPolarity;
u32 CurrentIntrOnAny;
u32 IntrType;
u32 IntrPolarity;
u32 IntrOnAny;
u32 IntrTestValue = 0x22;
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;
}
|
