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From: Dafna Hirschfeld <dafna3@gmail.com>
To: linux-media@vger.kernel.org
Cc: hverkuil@xs4all.nl, helen.koike@collabora.com,
	Hans Verkuil <hverkuil-cisco@xs4all.nl>
Subject: [PATCH v3 02/18] videodev2.h: add V4L2_BUF_CAP_REQUIRES_REQUESTS
Date: Sun, 24 Feb 2019 01:02:19 -0800	[thread overview]
Message-ID: <20190224090234.19723-3-dafna3@gmail.com> (raw)
In-Reply-To: <20190224090234.19723-1-dafna3@gmail.com>

From: Hans Verkuil <hverkuil-cisco@xs4all.nl>

Add capability to indicate that requests are required instead of
merely supported.

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
---
 Documentation/media/uapi/v4l/vidioc-reqbufs.rst | 4 ++++
 include/uapi/linux/videodev2.h                  | 1 +
 2 files changed, 5 insertions(+)

diff --git a/Documentation/media/uapi/v4l/vidioc-reqbufs.rst b/Documentation/media/uapi/v4l/vidioc-reqbufs.rst
index d7faef10e39b..d42a3d9a7db3 100644
--- a/Documentation/media/uapi/v4l/vidioc-reqbufs.rst
+++ b/Documentation/media/uapi/v4l/vidioc-reqbufs.rst
@@ -125,6 +125,7 @@ aborting or finishing any DMA in progress, an implicit
 .. _V4L2-BUF-CAP-SUPPORTS-DMABUF:
 .. _V4L2-BUF-CAP-SUPPORTS-REQUESTS:
 .. _V4L2-BUF-CAP-SUPPORTS-ORPHANED-BUFS:
+.. _V4L2-BUF-CAP-REQUIRES-REQUESTS:
 
 .. cssclass:: longtable
 
@@ -150,6 +151,9 @@ aborting or finishing any DMA in progress, an implicit
       - The kernel allows calling :ref:`VIDIOC_REQBUFS` while buffers are still
         mapped or exported via DMABUF. These orphaned buffers will be freed
         when they are unmapped or when the exported DMABUF fds are closed.
+    * - ``V4L2_BUF_CAP_REQUIRES_REQUESTS``
+      - 0x00000020
+      - This buffer type requires the use of :ref:`requests <media-request-api>`.
 
 Return Value
 ============
diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h
index 1db220da3bcc..97e6a6a968ba 100644
--- a/include/uapi/linux/videodev2.h
+++ b/include/uapi/linux/videodev2.h
@@ -895,6 +895,7 @@ struct v4l2_requestbuffers {
 #define V4L2_BUF_CAP_SUPPORTS_DMABUF	(1 << 2)
 #define V4L2_BUF_CAP_SUPPORTS_REQUESTS	(1 << 3)
 #define V4L2_BUF_CAP_SUPPORTS_ORPHANED_BUFS (1 << 4)
+#define V4L2_BUF_CAP_REQUIRES_REQUESTS	(1 << 5)
 
 /**
  * struct v4l2_plane - plane info for multi-planar buffers
-- 
2.17.1


  parent reply	other threads:[~2019-02-24  9:02 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-02-24  9:02 [PATCH v3 00/18] add support to stateless decoder Dafna Hirschfeld
2019-02-24  9:02 ` [PATCH v3 01/18] vb2: add requires_requests bit for stateless codecs Dafna Hirschfeld
2019-02-24  9:02 ` Dafna Hirschfeld [this message]
2019-02-24  9:02 ` [PATCH v3 03/18] cedrus: set requires_requests Dafna Hirschfeld
2019-02-24  9:02 ` [PATCH v3 04/18] media: vicodec: selection api should only check signal buffer types Dafna Hirschfeld
2019-02-25  9:14   ` Hans Verkuil
2019-02-24  9:02 ` [PATCH v3 05/18] media: v4l2-ctrl: v4l2_ctrl_request_setup returns with error upon failure Dafna Hirschfeld
2019-02-24  9:02 ` [PATCH v3 06/18] media: vicodec: change variable name for the return value of v4l2_fwht_encode Dafna Hirschfeld
2019-02-24  9:02 ` [PATCH v3 07/18] media: vicodec: bugfix - call v4l2_m2m_buf_copy_metadata also if decoding fails Dafna Hirschfeld
2019-02-24  9:02 ` [PATCH v3 08/18] media: vicodec: bugfix: free compressed_frame upon device release Dafna Hirschfeld
2019-02-24  9:02 ` [PATCH v3 09/18] media: vicodec: Move raw frame preparation code to a function Dafna Hirschfeld
2019-02-24  9:02 ` [PATCH v3 10/18] media: vicodec: add field 'buf' to fwht_raw_frame Dafna Hirschfeld
2019-02-24  9:02 ` [PATCH v3 11/18] media: vicodec: keep the ref frame according to the format in decoder Dafna Hirschfeld
2019-02-24  9:02 ` [PATCH v3 12/18] media: vicodec: Validate version dependent header values in a separate function Dafna Hirschfeld
2019-02-24  9:02 ` [PATCH v3 13/18] media: vicodec: rename v4l2_fwht_default_fmt to v4l2_fwht_find_nth_fmt Dafna Hirschfeld
2019-02-24  9:02 ` [PATCH v3 14/18] media: vicodec: add struct for encoder/decoder instance Dafna Hirschfeld
2019-02-24  9:02 ` [PATCH v3 15/18] media: vicodec: Introducing stateless fwht defs and structs Dafna Hirschfeld
2019-02-25  9:26   ` Hans Verkuil
2019-02-24  9:02 ` [PATCH v3 16/18] media: vicodec: Register another node for stateless decoder Dafna Hirschfeld
2019-02-24  9:02 ` [PATCH v3 17/18] media: vicodec: Add support " Dafna Hirschfeld
2019-02-25  9:42   ` Hans Verkuil

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