linux-kernel - [PATCHv3 1/6] media: v4l UAPI: add ROI selection targets

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Message-Id: <20210319055342.127308-2-senozhatsky@chromium.org>
Date:   Fri, 19 Mar 2021 14:53:37 +0900
From:   Sergey Senozhatsky <senozhatsky@...omium.org>
To:     Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        Ricardo Ribalda <ribalda@...omium.org>
Cc:     Tomasz Figa <tfiga@...omium.org>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Hans Verkuil <hverkuil-cisco@...all.nl>,
        linux-media@...r.kernel.org, linux-kernel@...r.kernel.org,
        Sergey Senozhatsky <senozhatsky@...omium.org>
Subject: [PATCHv3 1/6] media: v4l UAPI: add ROI selection targets

UVC 1.5 requires Region Of Interest control to implement
GET_CUR, GET_DEF, GET_MIN and GET_MAX requests. This patch
adds new V4L2 selection API targets that will implement
those ROI requests.

Signed-off-by: Sergey Senozhatsky <senozhatsky@...omium.org>
---
 include/uapi/linux/v4l2-common.h | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/include/uapi/linux/v4l2-common.h b/include/uapi/linux/v4l2-common.h
index 7d21c1634b4d..3651ebb8cb23 100644
--- a/include/uapi/linux/v4l2-common.h
+++ b/include/uapi/linux/v4l2-common.h
@@ -78,6 +78,14 @@
 #define V4L2_SEL_TGT_COMPOSE_BOUNDS	0x0102
 /* Current composing area plus all padding pixels */
 #define V4L2_SEL_TGT_COMPOSE_PADDED	0x0103
+/* Current Region of Interest area */
+#define V4L2_SEL_TGT_ROI		0x0200
+/* Default Region of Interest area */
+#define V4L2_SEL_TGT_ROI_DEFAULT	0x0201
+/* Region of Interest minimum values */
+#define V4L2_SEL_TGT_ROI_BOUNDS_MIN	0x0202
+/* Region of Interest maximum values */
+#define V4L2_SEL_TGT_ROI_BOUNDS_MAX	0x0203
 
 /* Selection flags */
 #define V4L2_SEL_FLAG_GE		(1 << 0)
-- 
2.31.0.rc2.261.g7f71774620-goog