media: videobuf2-core: add request helper functions
Add a new helper function to tell if a request object is a buffer.
Add a new helper function that returns true if a media_request
contains at least one buffer.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Reviewed-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
diff --git a/include/media/videobuf2-core.h b/include/media/videobuf2-core.h
index 957b11c..a9f2a7e 100644
--- a/include/media/videobuf2-core.h
+++ b/include/media/videobuf2-core.h
@@ -1172,4 +1172,19 @@ bool vb2_buffer_in_use(struct vb2_queue *q, struct vb2_buffer *vb);
*/
int vb2_verify_memory_type(struct vb2_queue *q,
enum vb2_memory memory, unsigned int type);
+
+/**
+ * vb2_request_object_is_buffer() - return true if the object is a buffer
+ *
+ * @obj: the request object.
+ */
+bool vb2_request_object_is_buffer(struct media_request_object *obj);
+
+/**
+ * vb2_request_has_buffers() - return true if the request contains buffers
+ *
+ * @req: the request.
+ */
+bool vb2_request_has_buffers(struct media_request *req);
+
#endif /* _MEDIA_VIDEOBUF2_CORE_H */