openclose.c revision 7cdc0497 
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
30static const char default_device[] = "/dev/dri/card0";
31
32int 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(&tegra, fd);
60	if (err < 0)
61		return 1;
62
63	drm_tegra_close(tegra);
64	close(fd);
65
66	return 0;
67}
68