instrumentation/events/lttng-module/v4l2.h

   1 #undef TRACE_SYSTEM
   2 #define TRACE_SYSTEM v4l2
   3
   4 #if !defined(_TRACE_V4L2_H) || defined(TRACE_HEADER_MULTI_READ)
   5 #define _TRACE_V4L2_H
   6
   7 #include <linux/tracepoint.h>
   8
   9 #define show_type(type)                                                        \
  10         __print_symbolic(type,                                                 \
  11                 { V4L2_BUF_TYPE_VIDEO_CAPTURE,        "VIDEO_CAPTURE" },       \
  12                 { V4L2_BUF_TYPE_VIDEO_OUTPUT,         "VIDEO_OUTPUT" },        \
  13                 { V4L2_BUF_TYPE_VIDEO_OVERLAY,        "VIDEO_OVERLAY" },       \
  14                 { V4L2_BUF_TYPE_VBI_CAPTURE,          "VBI_CAPTURE" },         \
  15                 { V4L2_BUF_TYPE_VBI_OUTPUT,           "VBI_OUTPUT" },          \
  16                 { V4L2_BUF_TYPE_SLICED_VBI_CAPTURE,   "SLICED_VBI_CAPTURE" },  \
  17                 { V4L2_BUF_TYPE_SLICED_VBI_OUTPUT,    "SLICED_VBI_OUTPUT" },   \
  18                 { V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY, "VIDEO_OUTPUT_OVERLAY" },\
  19                 { V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE, "VIDEO_CAPTURE_MPLANE" },\
  20                 { V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE,  "VIDEO_OUTPUT_MPLANE" }, \
  21                 { V4L2_BUF_TYPE_PRIVATE,              "PRIVATE" })
  22
  23 #define show_field(field)                                               \
  24         __print_symbolic(field,                                         \
  25                 { V4L2_FIELD_ANY,               "ANY" },                \
  26                 { V4L2_FIELD_NONE,              "NONE" },               \
  27                 { V4L2_FIELD_TOP,               "TOP" },                \
  28                 { V4L2_FIELD_BOTTOM,            "BOTTOM" },             \
  29                 { V4L2_FIELD_INTERLACED,        "INTERLACED" },         \
  30                 { V4L2_FIELD_SEQ_TB,            "SEQ_TB" },             \
  31                 { V4L2_FIELD_SEQ_BT,            "SEQ_BT" },             \
  32                 { V4L2_FIELD_ALTERNATE,         "ALTERNATE" },          \
  33                 { V4L2_FIELD_INTERLACED_TB,     "INTERLACED_TB" },      \
  34                 { V4L2_FIELD_INTERLACED_BT,     "INTERLACED_BT" })
  35
  36 #define show_timecode_type(type)                                        \
  37         __print_symbolic(type,                                          \
  38                 { V4L2_TC_TYPE_24FPS,           "24FPS" },              \
  39                 { V4L2_TC_TYPE_25FPS,           "25FPS" },              \
  40                 { V4L2_TC_TYPE_30FPS,           "30FPS" },              \
  41                 { V4L2_TC_TYPE_50FPS,           "50FPS" },              \
  42                 { V4L2_TC_TYPE_60FPS,           "60FPS" })
  43
  44 #define show_flags(flags)                                                     \
  45         __print_flags(flags, "|",                                             \
  46                 { V4L2_BUF_FLAG_MAPPED,              "MAPPED" },              \
  47                 { V4L2_BUF_FLAG_QUEUED,              "QUEUED" },              \
  48                 { V4L2_BUF_FLAG_DONE,                "DONE" },                \
  49                 { V4L2_BUF_FLAG_KEYFRAME,            "KEYFRAME" },            \
  50                 { V4L2_BUF_FLAG_PFRAME,              "PFRAME" },              \
  51                 { V4L2_BUF_FLAG_BFRAME,              "BFRAME" },              \
  52                 { V4L2_BUF_FLAG_ERROR,               "ERROR" },               \
  53                 { V4L2_BUF_FLAG_TIMECODE,            "TIMECODE" },            \
  54                 { V4L2_BUF_FLAG_PREPARED,            "PREPARED" },            \
  55                 { V4L2_BUF_FLAG_NO_CACHE_INVALIDATE, "NO_CACHE_INVALIDATE" }, \
  56                 { V4L2_BUF_FLAG_NO_CACHE_CLEAN,      "NO_CACHE_CLEAN" },      \
  57                 { V4L2_BUF_FLAG_TIMESTAMP_MASK,      "TIMESTAMP_MASK" },      \
  58                 { V4L2_BUF_FLAG_TIMESTAMP_UNKNOWN,   "TIMESTAMP_UNKNOWN" },   \
  59                 { V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC, "TIMESTAMP_MONOTONIC" }, \
  60                 { V4L2_BUF_FLAG_TIMESTAMP_COPY,      "TIMESTAMP_COPY" })
  61
  62 #define show_timecode_flags(flags)                                        \
  63         __print_flags(flags, "|",                                         \
  64                 { V4L2_TC_FLAG_DROPFRAME,       "DROPFRAME" },            \
  65                 { V4L2_TC_FLAG_COLORFRAME,      "COLORFRAME" },           \
  66                 { V4L2_TC_USERBITS_USERDEFINED, "USERBITS_USERDEFINED" }, \
  67                 { V4L2_TC_USERBITS_8BITCHARS,   "USERBITS_8BITCHARS" })
  68
  69 #define LTTNG_V4L2_TRACE_EVENT(event_name)                              \
  70         TRACE_EVENT(event_name,                                         \
  71                 TP_PROTO(int minor, struct v4l2_buffer *buf),           \
  72                                                                         \
  73                 TP_ARGS(minor, buf),                                    \
  74                                                                         \
  75                 TP_STRUCT__entry(                                       \
  76                         __field(int, minor)                             \
  77                         __field(u32, index)                             \
  78                         __field(u32, type)                              \
  79                         __field(u32, bytesused)                         \
  80                         __field(u32, flags)                             \
  81                         __field(u32, field)                             \
  82                         __field(s64, timestamp)                         \
  83                         __field(u32, timecode_type)                     \
  84                         __field(u32, timecode_flags)                    \
  85                         __field(u8, timecode_frames)                    \
  86                         __field(u8, timecode_seconds)                   \
  87                         __field(u8, timecode_minutes)                   \
  88                         __field(u8, timecode_hours)                     \
  89                         __field(u8, timecode_userbits0)                 \
  90                         __field(u8, timecode_userbits1)                 \
  91                         __field(u8, timecode_userbits2)                 \
  92                         __field(u8, timecode_userbits3)                 \
  93                         __field(u32, sequence)                          \
  94                 ),                                                      \
  95                                                                         \
  96                 TP_fast_assign(                                         \
  97                         tp_assign(minor, minor);                        \
  98                         tp_assign(index, buf->index);                   \
  99                         tp_assign(type, buf->type);                     \
 100                         tp_assign(bytesused, buf->bytesused);           \
 101                         tp_assign(flags, buf->flags);                   \
 102                         tp_assign(field, buf->field);                   \
 103                         tp_assign(timestamp,                            \
 104                                 timeval_to_ns(&buf->timestamp));        \
 105                         tp_assign(timecode_type, buf->timecode.type);   \
 106                         tp_assign(timecode_flags, buf->timecode.flags); \
 107                         tp_assign(timecode_frames,                      \
 108                                 buf->timecode.frames);                  \
 109                         tp_assign(timecode_seconds,                     \
 110                                 buf->timecode.seconds);                 \
 111                         tp_assign(timecode_minutes,                     \
 112                                 buf->timecode.minutes);                 \
 113                         tp_assign(timecode_hours, buf->timecode.hours); \
 114                         tp_assign(timecode_userbits0,                   \
 115                                 buf->timecode.userbits[0]);             \
 116                         tp_assign(timecode_userbits1,                   \
 117                                 buf->timecode.userbits[1]);             \
 118                         tp_assign(timecode_userbits2,                   \
 119                                 buf->timecode.userbits[2]);             \
 120                         tp_assign(timecode_userbits3,                   \
 121                                 buf->timecode.userbits[3]);             \
 122                         tp_assign(sequence, buf->sequence);             \
 123                 ),                                                      \
 124                                                                         \
 125                 TP_printk("minor = %d, index = %u, type = %s, "         \
 126                           "bytesused = %u, flags = %s, "                \
 127                           "field = %s, timestamp = %llu, timecode = { " \
 128                           "type = %s, flags = %s, frames = %u, "        \
 129                           "seconds = %u, minutes = %u, hours = %u, "    \
 130                           "userbits = { %u %u %u %u } }, "              \
 131                           "sequence = %u", __entry->minor,              \
 132                           __entry->index, show_type(__entry->type),     \
 133                           __entry->bytesused,                           \
 134                           show_flags(__entry->flags),                   \
 135                           show_field(__entry->field),                   \
 136                           __entry->timestamp,                           \
 137                           show_timecode_type(__entry->timecode_type),   \
 138                           show_timecode_flags(__entry->timecode_flags), \
 139                           __entry->timecode_frames,                     \
 140                           __entry->timecode_seconds,                    \
 141                           __entry->timecode_minutes,                    \
 142                           __entry->timecode_hours,                      \
 143                           __entry->timecode_userbits0,                  \
 144                           __entry->timecode_userbits1,                  \
 145                           __entry->timecode_userbits2,                  \
 146                           __entry->timecode_userbits3,                  \
 147                           __entry->sequence                             \
 148                 )                                                       \
 149         )
 150
 151 LTTNG_V4L2_TRACE_EVENT(v4l2_dqbuf)
 152 LTTNG_V4L2_TRACE_EVENT(v4l2_qbuf)
 153
 154 #endif /* if !defined(_TRACE_V4L2_H) || defined(TRACE_HEADER_MULTI_READ) */
 155
 156 /* This part must be outside protection */
 157 #include "../../../probes/define_trace.h"