xref: /aosp_15_r20/external/libdrm/tests/tegra/openclose.c (revision 7688df22e49036ff52a766b7101da3a49edadb8c)
1 /*
2  * Copyright © 2014 NVIDIA Corporation
3  *
4  * Permission is hereby granted, free of charge, to any person obtaining a
5  * copy of this software and associated documentation files (the "Software"),
6  * to deal in the Software without restriction, including without limitation
7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8  * and/or sell copies of the Software, and to permit persons to whom the
9  * Software is furnished to do so, subject to the following conditions:
10  *
11  * The above copyright notice and this permission notice shall be included in
12  * all copies or substantial portions of the Software.
13  *
14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
17  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20  * OTHER DEALINGS IN THE SOFTWARE.
21  */
22 
23 #include <fcntl.h>
24 #include <stdio.h>
25 #include <unistd.h>
26 
27 #include "xf86drm.h"
28 #include "tegra.h"
29 
30 static const char default_device[] = "/dev/dri/card0";
31 
main(int argc,char * argv[])32 int main(int argc, char *argv[])
33 {
34     struct drm_tegra *tegra;
35     drmVersionPtr version;
36     const char *device;
37     int err, fd;
38 
39     if (argc < 2)
40         device = default_device;
41     else
42         device = argv[1];
43 
44     fd = open(device, O_RDWR);
45     if (fd < 0)
46         return 1;
47 
48     version = drmGetVersion(fd);
49     if (version) {
50         printf("Version: %d.%d.%d\n", version->version_major,
51                version->version_minor, version->version_patchlevel);
52         printf("  Name: %s\n", version->name);
53         printf("  Date: %s\n", version->date);
54         printf("  Description: %s\n", version->desc);
55 
56         drmFreeVersion(version);
57     }
58 
59     err = drm_tegra_new(fd, &tegra);
60     if (err < 0)
61         return 1;
62 
63     drm_tegra_close(tegra);
64     close(fd);
65 
66     return 0;
67 }
68