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
|
/*
* tc_eim.c
* --------
* This module contains common code to talk to the FPGA over the EIM bus.
*
* Author: Paul Selkirk
* Copyright (c) 2014-2015, NORDUnet A/S All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
* - Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* - Neither the name of the NORDUnet nor the names of its contributors may
* be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <stdio.h>
#include <stdlib.h>
#include <fcntl.h>
#include <unistd.h>
#include <sys/ioctl.h>
#include <stdint.h>
#include <arpa/inet.h>
#include "tc_eim.h"
extern int debug;
/* ---------------- test-case low-level code ---------------- */
static void dump(char *label, const uint8_t *buf, int len)
{
if (debug) {
int i;
printf("%s [", label);
for (i = 0; i < len; ++i)
printf(" %02x", buf[i]);
printf(" ]\n");
}
}
int tc_write(off_t offset, const uint8_t *buf, int len)
{
dump("write ", buf, len);
for (; len > 0; offset += 4, buf += 4, len -= 4) {
uint32_t val;
val = htonl(*(uint32_t *)buf);
eim_write_32(offset, &val);
}
return 0;
}
int tc_read(off_t offset, uint8_t *buf, int len)
{
uint8_t *rbuf = buf;
int rlen = len;
for (; rlen > 0; offset += 4, rbuf += 4, rlen -= 4) {
uint32_t val;
eim_read_32(offset, &val);
*(uint32_t *)rbuf = ntohl(val);
}
dump("read ", buf, len);
return 0;
}
int tc_expected(off_t offset, const uint8_t *expected, int len)
{
uint8_t *buf;
int i;
buf = malloc(len);
if (buf == NULL) {
perror("malloc");
return 1;
}
dump("expect", expected, len);
if (tc_read(offset, buf, len) != 0)
goto errout;
for (i = 0; i < len; ++i)
if (buf[i] != expected[i]) {
fprintf(stderr, "response byte %d: expected 0x%02x, got 0x%02x\n",
i, expected[i], buf[i]);
goto errout;
}
free(buf);
return 0;
errout:
free(buf);
return 1;
}
int tc_wait(off_t offset, uint8_t status, int *count)
{
uint8_t buf[4];
int i;
for (i = 1; ; ++i) {
if (count && (*count > 0) && (i >= *count)) {
fprintf(stderr, "tc_wait timed out\n");
return 1;
}
if (tc_read(offset, buf, 4) != 0)
return -1;
if (buf[3] & status) {
if (count)
*count = i;
return 0;
}
}
}
|
