[media] media: videobuf2: Prepare to divide videobuf2
Prepare to divide videobuf2
- Separate vb2 trace events from v4l2 trace event.
- Make wrapper functions that will move to v4l2-side.
- Make vb2_core_* functions that will remain in core-side.
- Add a callback function table for buffer operation which makes vb2-core
to be able to invoke a v4l2-side functions.
- Rename internal functions as vb2_*.
Signed-off-by: Junghak Sung <jh1009.sung@samsung.com>
Signed-off-by: Geunyoung Kim <nenggun.kim@samsung.com>
Acked-by: Seung-Woo Kim <sw0312.kim@samsung.com>
Acked-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
diff --git a/include/media/videobuf2-core.h b/include/media/videobuf2-core.h
index 244ea2e..d3659d7 100644
--- a/include/media/videobuf2-core.h
+++ b/include/media/videobuf2-core.h
@@ -363,6 +363,12 @@
void (*buf_queue)(struct vb2_buffer *vb);
};
+struct vb2_buf_ops {
+ int (*fill_user_buffer)(struct vb2_buffer *vb, void *pb);
+ int (*fill_vb2_buffer)(struct vb2_buffer *vb, const void *pb,
+ struct vb2_plane *planes);
+ int (*set_timestamp)(struct vb2_buffer *vb, const void *pb);
+};
/**
* struct vb2_queue - a videobuf queue
@@ -385,6 +391,8 @@
* drivers to easily associate an owner filehandle with the queue.
* @ops: driver-specific callbacks
* @mem_ops: memory allocator specific callbacks
+ * @buf_ops: callbacks to deliver buffer information
+ * between user-space and kernel-space
* @drv_priv: driver private data
* @buf_struct_size: size of the driver-specific buffer structure;
* "0" indicates the driver doesn't want to use a custom buffer
@@ -440,6 +448,8 @@
const struct vb2_ops *ops;
const struct vb2_mem_ops *mem_ops;
+ const struct vb2_buf_ops *buf_ops;
+
void *drv_priv;
unsigned int buf_struct_size;
u32 timestamp_flags;
diff --git a/include/trace/events/v4l2.h b/include/trace/events/v4l2.h
index 375b1a3..04ef89b 100644
--- a/include/trace/events/v4l2.h
+++ b/include/trace/events/v4l2.h
@@ -175,17 +175,12 @@
TP_ARGS(minor, buf)
);
-DECLARE_EVENT_CLASS(vb2_event_class,
+DECLARE_EVENT_CLASS(vb2_v4l2_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)
@@ -207,12 +202,6 @@
struct v4l2_fh *owner = q->owner;
__entry->minor = owner ? 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->index;
- __entry->type = vb->type;
- __entry->bytesused = vb->planes[0].bytesused;
__entry->flags = vbuf->flags;
__entry->field = vbuf->field;
__entry->timestamp = timeval_to_ns(&vbuf->timestamp);
@@ -229,15 +218,10 @@
__entry->sequence = vbuf->sequence;
),
- TP_printk("minor = %d, queued = %u, owned_by_drv = %d, index = %u, "
- "type = %s, bytesused = %u, flags = %s, field = %s, "
+ TP_printk("minor=%d 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,
@@ -255,22 +239,22 @@
)
)
-DEFINE_EVENT(vb2_event_class, vb2_buf_done,
+DEFINE_EVENT(vb2_v4l2_event_class, vb2_v4l2_buf_done,
TP_PROTO(struct vb2_queue *q, struct vb2_buffer *vb),
TP_ARGS(q, vb)
);
-DEFINE_EVENT(vb2_event_class, vb2_buf_queue,
+DEFINE_EVENT(vb2_v4l2_event_class, vb2_v4l2_buf_queue,
TP_PROTO(struct vb2_queue *q, struct vb2_buffer *vb),
TP_ARGS(q, vb)
);
-DEFINE_EVENT(vb2_event_class, vb2_dqbuf,
+DEFINE_EVENT(vb2_v4l2_event_class, vb2_v4l2_dqbuf,
TP_PROTO(struct vb2_queue *q, struct vb2_buffer *vb),
TP_ARGS(q, vb)
);
-DEFINE_EVENT(vb2_event_class, vb2_qbuf,
+DEFINE_EVENT(vb2_v4l2_event_class, vb2_v4l2_qbuf,
TP_PROTO(struct vb2_queue *q, struct vb2_buffer *vb),
TP_ARGS(q, vb)
);
diff --git a/include/trace/events/vb2.h b/include/trace/events/vb2.h
new file mode 100644
index 0000000..bfeceeb
--- /dev/null
+++ b/include/trace/events/vb2.h
@@ -0,0 +1,65 @@
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM vb2
+
+#if !defined(_TRACE_VB2_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_VB2_H
+
+#include <linux/tracepoint.h>
+#include <media/videobuf2-core.h>
+
+DECLARE_EVENT_CLASS(vb2_event_class,
+ TP_PROTO(struct vb2_queue *q, struct vb2_buffer *vb),
+ TP_ARGS(q, vb),
+
+ TP_STRUCT__entry(
+ __field(void *, owner)
+ __field(u32, queued_count)
+ __field(int, owned_by_drv_count)
+ __field(u32, index)
+ __field(u32, type)
+ __field(u32, bytesused)
+ ),
+
+ TP_fast_assign(
+ __entry->owner = q->owner;
+ __entry->queued_count = q->queued_count;
+ __entry->owned_by_drv_count =
+ atomic_read(&q->owned_by_drv_count);
+ __entry->index = vb->index;
+ __entry->type = vb->type;
+ __entry->bytesused = vb->planes[0].bytesused;
+ ),
+
+ TP_printk("owner = %p, queued = %u, owned_by_drv = %d, index = %u, "
+ "type = %u, bytesused = %u", __entry->owner,
+ __entry->queued_count,
+ __entry->owned_by_drv_count,
+ __entry->index, __entry->type,
+ __entry->bytesused
+ )
+)
+
+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_VB2_H) || defined(TRACE_HEADER_MULTI_READ) */
+
+/* This part must be outside protection */
+#include <trace/define_trace.h>