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
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
|
/* Init
*
* This routine is the initialization task for this test program.
* It is called from init_exec and has the responsibility for creating
* and starting the tasks that make up the test. If the time of day
* clock is required for the test, it should also be set to a known
* value by this function.
*
* Input parameters: NONE
*
* Output parameters: NONE
*
* COPYRIGHT (c) 1989-1999.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.org/license/LICENSE.
*
* OAR init.c Template modified by T. Straumann who provided
* the implementation of this application.
*/
#define CONFIGURE_INIT
#include <rtems.h>
/* functions */
rtems_task Init(
rtems_task_argument argument
);
/* configuration information */
#include <bsp.h> /* for device driver prototypes */
#define CONFIGURE_APPLICATION_NEEDS_CONSOLE_DRIVER
#define CONFIGURE_APPLICATION_NEEDS_CLOCK_DRIVER
#define CONFIGURE_MAXIMUM_TASKS 1
#define CONFIGURE_RTEMS_INIT_TASKS_TABLE
#define CONFIGURE_USE_MINIIMFS_AS_BASE_FILESYSTEM
#include <confdefs.h>
#include <stdio.h>
#include <stdlib.h>
#include <bsp/irq.h>
#include <rtems/bspIo.h>
void noop(){}
int connected() {return 1;}
rtems_irq_connect_data blah = { 0, 0, noop, noop, connected };
extern void discovery_pic_set_debug_irq();
#define WIRE_IRQ (BSP_IRQ_GPP_0 + 6)
#define ABRT_IRQ (BSP_IRQ_GPP_0 + 2)
static volatile int testno=0;
static volatile int wloops =0;
static volatile int aloops =0;
void wire_hdl()
{
if ( 1 == testno ) {
BSP_disable_irq_at_pic(WIRE_IRQ);
}
if ( 2 == testno || 3 == testno ) {
discovery_pic_set_debug_irq(0);
printk("WIRE -- this message should be printed %s\n", 3==testno ? "FIRST":"SECOND");
} else {
}
/* assume the driver checks for less than 1000 loops */
if ( ++wloops > 1000) {
printk("wire IRQ. FAILURE -- driver couldn't catch runaway ISR. Disabling IRQ source.\n");
discovery_pic_set_debug_irq(0);
BSP_disable_irq_at_pic(WIRE_IRQ);
}
/*
*/
}
void abrt_hdl()
{
aloops++;
if ( 2 == testno || 3 == testno ) {
discovery_pic_set_debug_irq(1);
printk("ABRT -- this message should be printed %s\n", 2==testno ? "FIRST":"SECOND");
} else
printk("ABRT IRQ\n");
if ( 1== testno ) {
BSP_enable_irq_at_pic(WIRE_IRQ);
}
BSP_disable_irq_at_pic(ABRT_IRQ);
}
rtems_task Init(
rtems_task_argument ignored
)
{
blah.name = WIRE_IRQ;
blah.hdl = wire_hdl;
if (!BSP_install_rtems_irq_handler(&blah)) {
fprintf(stderr,"installing handler 1 failed\n");
}
blah.name = ABRT_IRQ;
blah.hdl = abrt_hdl;
if (!BSP_install_rtems_irq_handler(&blah)) {
fprintf(stderr,"installing handler 2 failed\n");
}
printf("Hello, testing the ISR dispatcher...\n");
printf(" 1. Trying to catch runaway interrupt\n");
printf(" If the system freezes, the test failed!\n");
fflush(stdout); sleep(1);
aloops = wloops = 0;
discovery_pic_set_debug_irq(1);
printf(" >>> %s\n", wloops<1000 ? "SUCCESS" : "FAILED");
discovery_pic_set_debug_irq(0);
testno++;
printf(" 2. Testing enabling / disabling interrupt from ISR\n");
printf(" Hit the ABORT key for this test\n");
fflush(stdout); sleep(1);
aloops = wloops = 0;
BSP_disable_irq_at_pic(WIRE_IRQ);
BSP_irq_set_priority(ABRT_IRQ,1);
BSP_enable_irq_at_pic(ABRT_IRQ);
discovery_pic_set_debug_irq(1);
while (!aloops)
;
discovery_pic_set_debug_irq(0);
sleep(2);
printf(" >>> disabling ABRT IRQ from isr %s\n", 1==aloops ? "SUCCESS":"FAILURE");
printf(" flashing WIRE IRQ from isr %s\n", 1==wloops ? "SUCCESS":"FAILURE");
testno++;
printf(" 3. Testing interrupt priorities\n");
BSP_irq_set_priority(ABRT_IRQ,2);
BSP_irq_set_priority(WIRE_IRQ,2);
BSP_enable_irq_at_pic(ABRT_IRQ);
BSP_enable_irq_at_pic(WIRE_IRQ);
printf(" Hit the ABORT key for this test\n");
fflush(stdout); sleep(1);
aloops = wloops = 0;
while (!aloops)
;
sleep(2);
testno++;
printf(" Now we are raising the priority of the wire interrupt\n");
BSP_irq_set_priority(WIRE_IRQ,3);
BSP_enable_irq_at_pic(ABRT_IRQ);
printf(" Hit the ABORT key for this test\n");
fflush(stdout); sleep(1);
aloops = wloops = 0;
while (!aloops)
;
sleep(2);
printf( "That's it; we're done...\n" );
exit( 0 );
}
|
