diff options
| -rw-r--r-- | drivers/media/common/videobuf2/videobuf2-core.c | 24 | ||||
| -rw-r--r-- | include/media/videobuf2-core.h | 15 |
2 files changed, 39 insertions, 0 deletions
diff --git a/drivers/media/common/videobuf2/videobuf2-core.c b/drivers/media/common/videobuf2/videobuf2-core.c index 16c9a08192cf..f941bf4bd55f 100644 --- a/drivers/media/common/videobuf2/videobuf2-core.c +++ b/drivers/media/common/videobuf2/videobuf2-core.c @@ -1362,6 +1362,30 @@ static const struct media_request_object_ops vb2_core_req_ops = { .release = vb2_req_release, }; +bool vb2_request_object_is_buffer(struct media_request_object *obj) +{ + return obj->ops == &vb2_core_req_ops; +} +EXPORT_SYMBOL_GPL(vb2_request_object_is_buffer); + +bool vb2_request_has_buffers(struct media_request *req) +{ + struct media_request_object *obj; + unsigned long flags; + bool has_buffers = false; + + spin_lock_irqsave(&req->lock, flags); + list_for_each_entry(obj, &req->objects, list) { + if (vb2_request_object_is_buffer(obj)) { + has_buffers = true; + break; + } + } + spin_unlock_irqrestore(&req->lock, flags); + return has_buffers; +} +EXPORT_SYMBOL_GPL(vb2_request_has_buffers); + int vb2_core_prepare_buf(struct vb2_queue *q, unsigned int index, void *pb) { struct vb2_buffer *vb; diff --git a/include/media/videobuf2-core.h b/include/media/videobuf2-core.h index 957b11c675cb..a9f2a7eae49a 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 */ |