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authorWade Farnsworth <wade_farnsworth@mentor.com>2013-11-22 14:48:28 -0500
committerMauro Carvalho Chehab <m.chehab@samsung.com>2013-12-10 12:53:43 -0500
commit2d01237389dc64b37745ce87e64d6808b6eed582 (patch)
tree389363779cc318263f2df0354f610c3cb9a06127 /include
parent324ed533bf0b23c309b805272c4ffcc5d51493a6 (diff)
[media] v4l2-dev: Add tracepoints for QBUF and DQBUF
Add tracepoints to the QBUF and DQBUF ioctls to enable rudimentary performance measurements using standard kernel tracers. [m.chehab@samsung.com: CodingStyle fixes (whitespacing)] Signed-off-by: Wade Farnsworth <wade_farnsworth@mentor.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Diffstat (limited to 'include')
-rw-r--r--include/trace/events/v4l2.h157
1 files changed, 157 insertions, 0 deletions
diff --git a/include/trace/events/v4l2.h b/include/trace/events/v4l2.h
new file mode 100644
index 000000000000..ef94ecad1c94
--- /dev/null
+++ b/include/trace/events/v4l2.h
@@ -0,0 +1,157 @@
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 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 __entry->minor = minor; \
98 __entry->index = buf->index; \
99 __entry->type = buf->type; \
100 __entry->bytesused = buf->bytesused; \
101 __entry->flags = buf->flags; \
102 __entry->field = buf->field; \
103 __entry->timestamp = \
104 timeval_to_ns(&buf->timestamp); \
105 __entry->timecode_type = buf->timecode.type; \
106 __entry->timecode_flags = buf->timecode.flags; \
107 __entry->timecode_frames = \
108 buf->timecode.frames; \
109 __entry->timecode_seconds = \
110 buf->timecode.seconds; \
111 __entry->timecode_minutes = \
112 buf->timecode.minutes; \
113 __entry->timecode_hours = buf->timecode.hours; \
114 __entry->timecode_userbits0 = \
115 buf->timecode.userbits[0]; \
116 __entry->timecode_userbits1 = \
117 buf->timecode.userbits[1]; \
118 __entry->timecode_userbits2 = \
119 buf->timecode.userbits[2]; \
120 __entry->timecode_userbits3 = \
121 buf->timecode.userbits[3]; \
122 __entry->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
151V4L2_TRACE_EVENT(v4l2_dqbuf);
152V4L2_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 <trace/define_trace.h>
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