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 Mrton Nmeth <nm127 (at) 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 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
