1 /*
2 * v4l-test: Test environment for Video For Linux Two API
3 *
4 * 5 Jul 2009 0.1 First release
5 *
6 * Written by M�rton N�meth <nm127@freemail.hu>
7 * Released under GPL
8 */
9
10 #include <stdio.h>
11 #include <sys/types.h>
12 #include <sys/stat.h>
13 #include <fcntl.h>
14 #include <unistd.h>
15 #include <sys/ioctl.h>
16 #include <errno.h>
17 #include <string.h>
18
19 #include <linux/videodev2.h>
20 #include <linux/errno.h>
21
22 #include <CUnit/CUnit.h>
23
24 #include "v4l2_test.h"
25 #include "dev_video.h"
26 #include "v4l2_show.h"
27 #include "v4l2_foreach.h"
28
foreach_input(V4L2InputTestFunc pFunc)29 void foreach_input(V4L2InputTestFunc pFunc)
30 {
31 __u32 input_index_orig;
32 struct v4l2_input input;
33 int ret_input_get, errno_input_get;
34 int ret_input_enum, errno_input_enum;
35 int ret_input_set, errno_input_set;
36 __u32 i;
37 int f;
38 char not_yet_called = 1;
39
40 f = get_video_fd();
41
42 memset(&input_index_orig, 0xff, sizeof(input_index_orig));
43 ret_input_get = ioctl(f, VIDIOC_G_INPUT, &input_index_orig);
44 errno_input_get = errno;
45 dprintf
46 ("\t%s:%u: VIDIOC_G_INPUT, ret_input_get=%i, errno_input_get=%i, input_index_orig=0x%X\n",
47 __FILE__, __LINE__, ret_input_get, errno_input_get,
48 input_index_orig);
49
50 i = 0;
51 do {
52 memset(&input, 0xff, sizeof(input));
53 input.index = i;
54 ret_input_enum = ioctl(f, VIDIOC_ENUMINPUT, &input);
55 errno_input_enum = errno;
56
57 dprintf
58 ("\t%s:%u: VIDIOC_ENUMINPUT: i=%u, ret_input_enum=%i, errno_input_enum=%i\n",
59 __FILE__, __LINE__, i, ret_input_enum, errno_input_enum);
60
61 if (ret_input_enum == 0) {
62 show_v4l2_input(&input);
63 ret_input_set = ioctl(f, VIDIOC_S_INPUT, &input.index);
64 errno_input_set = errno;
65 dprintf
66 ("\t%s:%u: VIDIOC_S_INPUT: input.index=0x%X, ret_input_set=%i, errno_input_set=%i\n",
67 __FILE__, __LINE__, input.index, ret_input_set,
68 errno_input_set);
69 CU_ASSERT_EQUAL(ret_input_set, 0);
70 }
71
72 /* Ensure that pFunc() is called at least once even if
73 * everything else returned error before.
74 */
75 if (not_yet_called || ret_input_enum == 0) {
76 pFunc(ret_input_enum, errno_input_enum, &input);
77 not_yet_called = 0;
78 }
79
80 i++;
81 } while (ret_input_enum == 0 && i != 0);
82
83 if (ret_input_get == 0) {
84 /* Setting the original input_id should not fail */
85 ret_input_set = ioctl(f, VIDIOC_S_INPUT, &input_index_orig);
86 errno_input_set = errno;
87 CU_ASSERT_EQUAL(ret_input_set, 0);
88 }
89 }
90