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authorPhilipp Zabel <p.zabel@pengutronix.de>2015-07-10 10:49:26 -0300
committerMauro Carvalho Chehab <mchehab@osg.samsung.com>2015-07-17 12:04:12 -0300
commit2091f5181c66b3617a977e79843aba10e087be6c (patch)
tree69052ff35a8795ff3c17904ebe59ad5949f58d60 /include/trace
parentc13a5ccf5da86239213033214658b8a170eeab87 (diff)
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[media] videobuf2: add trace events
Add videobuf2 specific vb2_qbuf and vb2_dqbuf trace events that mirror the v4l2_qbuf and v4l2_dqbuf trace events, only they include additional information about queue fill state and are emitted right before the buffer is enqueued in the driver or userspace is woken up. This allows to make sense of the timeline of trace events in combination with others that might be triggered by __enqueue_in_driver. Also two new trace events vb2_buf_queue and vb2_buf_done are added, allowing to trace the handover between videobuf2 framework and driver. Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Diffstat (limited to 'include/trace')
-rw-r--r--include/trace/events/v4l2.h97
1 files changed, 97 insertions, 0 deletions
diff --git a/include/trace/events/v4l2.h b/include/trace/events/v4l2.h
index 4c88a3241c18..dbf017bfddd9 100644
--- a/include/trace/events/v4l2.h
+++ b/include/trace/events/v4l2.h
@@ -174,6 +174,103 @@ DEFINE_EVENT(v4l2_event_class, v4l2_qbuf,
TP_ARGS(minor, buf)
);
+DECLARE_EVENT_CLASS(vb2_event_class,
+ TP_PROTO(struct vb2_queue *q, struct vb2_buffer *vb),
+ TP_ARGS(q, vb),
+
+ TP_STRUCT__entry(
+ __field(int, minor)
+ __field(u32, queued_count)
+ __field(int, owned_by_drv_count)
+ __field(u32, index)
+ __field(u32, type)
+ __field(u32, bytesused)
+ __field(u32, flags)
+ __field(u32, field)
+ __field(s64, timestamp)
+ __field(u32, timecode_type)
+ __field(u32, timecode_flags)
+ __field(u8, timecode_frames)
+ __field(u8, timecode_seconds)
+ __field(u8, timecode_minutes)
+ __field(u8, timecode_hours)
+ __field(u8, timecode_userbits0)
+ __field(u8, timecode_userbits1)
+ __field(u8, timecode_userbits2)
+ __field(u8, timecode_userbits3)
+ __field(u32, sequence)
+ ),
+
+ TP_fast_assign(
+ __entry->minor = q->owner ? q->owner->vdev->minor : -1;
+ __entry->queued_count = q->queued_count;
+ __entry->owned_by_drv_count =
+ atomic_read(&q->owned_by_drv_count);
+ __entry->index = vb->v4l2_buf.index;
+ __entry->type = vb->v4l2_buf.type;
+ __entry->bytesused = vb->v4l2_planes[0].bytesused;
+ __entry->flags = vb->v4l2_buf.flags;
+ __entry->field = vb->v4l2_buf.field;
+ __entry->timestamp = timeval_to_ns(&vb->v4l2_buf.timestamp);
+ __entry->timecode_type = vb->v4l2_buf.timecode.type;
+ __entry->timecode_flags = vb->v4l2_buf.timecode.flags;
+ __entry->timecode_frames = vb->v4l2_buf.timecode.frames;
+ __entry->timecode_seconds = vb->v4l2_buf.timecode.seconds;
+ __entry->timecode_minutes = vb->v4l2_buf.timecode.minutes;
+ __entry->timecode_hours = vb->v4l2_buf.timecode.hours;
+ __entry->timecode_userbits0 = vb->v4l2_buf.timecode.userbits[0];
+ __entry->timecode_userbits1 = vb->v4l2_buf.timecode.userbits[1];
+ __entry->timecode_userbits2 = vb->v4l2_buf.timecode.userbits[2];
+ __entry->timecode_userbits3 = vb->v4l2_buf.timecode.userbits[3];
+ __entry->sequence = vb->v4l2_buf.sequence;
+ ),
+
+ TP_printk("minor = %d, queued = %u, owned_by_drv = %d, index = %u, "
+ "type = %s, bytesused = %u, flags = %s, field = %s, "
+ "timestamp = %llu, timecode = { type = %s, flags = %s, "
+ "frames = %u, seconds = %u, minutes = %u, hours = %u, "
+ "userbits = { %u %u %u %u } }, sequence = %u", __entry->minor,
+ __entry->queued_count,
+ __entry->owned_by_drv_count,
+ __entry->index, show_type(__entry->type),
+ __entry->bytesused,
+ show_flags(__entry->flags),
+ show_field(__entry->field),
+ __entry->timestamp,
+ show_timecode_type(__entry->timecode_type),
+ show_timecode_flags(__entry->timecode_flags),
+ __entry->timecode_frames,
+ __entry->timecode_seconds,
+ __entry->timecode_minutes,
+ __entry->timecode_hours,
+ __entry->timecode_userbits0,
+ __entry->timecode_userbits1,
+ __entry->timecode_userbits2,
+ __entry->timecode_userbits3,
+ __entry->sequence
+ )
+)
+
+DEFINE_EVENT(vb2_event_class, vb2_buf_done,
+ TP_PROTO(struct vb2_queue *q, struct vb2_buffer *vb),
+ TP_ARGS(q, vb)
+);
+
+DEFINE_EVENT(vb2_event_class, vb2_buf_queue,
+ TP_PROTO(struct vb2_queue *q, struct vb2_buffer *vb),
+ TP_ARGS(q, vb)
+);
+
+DEFINE_EVENT(vb2_event_class, vb2_dqbuf,
+ TP_PROTO(struct vb2_queue *q, struct vb2_buffer *vb),
+ TP_ARGS(q, vb)
+);
+
+DEFINE_EVENT(vb2_event_class, vb2_qbuf,
+ TP_PROTO(struct vb2_queue *q, struct vb2_buffer *vb),
+ TP_ARGS(q, vb)
+);
+
#endif /* if !defined(_TRACE_V4L2_H) || defined(TRACE_HEADER_MULTI_READ) */
/* This part must be outside protection */