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
|
/*
* Copyright © 2019 Intel Corporation
*
* 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 (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* 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 AUTHORS OR COPYRIGHT HOLDERS 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.
*/
#include "config.h"
#include "igt.h"
#include <fcntl.h>
#include <string.h>
#include <sys/ioctl.h>
#include <sys/mman.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <unistd.h>
#include <linux/fb.h>
#include "igt.h"
igt_main
{
struct fb_var_screeninfo var_info;
struct fb_fix_screeninfo fix_info;
int fd = -1;
igt_fixture {
fd = open("/dev/fb0", O_RDWR);
igt_require_f(fd != -1, "/dev/fb0\n");
igt_require(ioctl(fd, FBIOGET_VSCREENINFO, &var_info) == 0);
igt_require(ioctl(fd, FBIOGET_FSCREENINFO, &fix_info) == 0);
}
igt_subtest("info") {
unsigned long size;
size = var_info.yres * fix_info.line_length;
igt_assert_f(size <= fix_info.smem_len,
"screen size (%d x %d) of pitch %d does not fit within mappable area of size %u\n",
var_info.xres, var_info.yres,
fix_info.line_length,
fix_info.smem_len);
}
igt_subtest("mmap") {
void *map;
igt_require(fix_info.smem_len);
map = mmap(NULL, fix_info.smem_len,
PROT_WRITE, MAP_SHARED, fd, 0);
igt_assert(map != MAP_FAILED);
memset(map, 0, fix_info.smem_len);
munmap(map, fix_info.smem_len);
}
igt_fixture {
close(fd);
}
}
|