From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from lb3-smtp-cloud8.xs4all.net ([194.109.24.29]:37704 "EHLO lb3-smtp-cloud8.xs4all.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751507AbeECOx1 (ORCPT ); Thu, 3 May 2018 10:53:27 -0400 From: Hans Verkuil To: linux-media@vger.kernel.org Cc: Hans Verkuil Subject: [PATCHv13 19/28] videobuf2-core: add request helper functions Date: Thu, 3 May 2018 16:53:09 +0200 Message-Id: <20180503145318.128315-20-hverkuil@xs4all.nl> In-Reply-To: <20180503145318.128315-1-hverkuil@xs4all.nl> References: <20180503145318.128315-1-hverkuil@xs4all.nl> Sender: linux-media-owner@vger.kernel.org List-ID: From: Hans Verkuil 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 --- drivers/media/common/videobuf2/videobuf2-core.c | 17 +++++++++++++++++ include/media/videobuf2-core.h | 15 +++++++++++++++ 2 files changed, 32 insertions(+) diff --git a/drivers/media/common/videobuf2/videobuf2-core.c b/drivers/media/common/videobuf2/videobuf2-core.c index 4064fa15bc40..e18b87ada892 100644 --- a/drivers/media/common/videobuf2/videobuf2-core.c +++ b/drivers/media/common/videobuf2/videobuf2-core.c @@ -1340,6 +1340,23 @@ 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; + + list_for_each_entry(obj, &req->objects, list) + if (vb2_request_object_is_buffer(obj)) + return true; + return false; +} +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 0b0e8b56aed1..c9045f113791 100644 --- a/include/media/videobuf2-core.h +++ b/include/media/videobuf2-core.h @@ -1161,4 +1161,19 @@ 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 */ -- 2.17.0