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Message-Id: <20241210-uvc-roi-v16-2-e8201f7e8e57@chromium.org>
Date: Tue, 10 Dec 2024 09:42:38 +0000
From: Ricardo Ribalda <ribalda@...omium.org>
To: Laurent Pinchart <laurent.pinchart@...asonboard.com>,
Mauro Carvalho Chehab <mchehab@...nel.org>,
Hans de Goede <hdegoede@...hat.com>,
Sakari Ailus <sakari.ailus@...ux.intel.com>,
Hans Verkuil <hverkuil@...all.nl>
Cc: Yunke Cao <yunkec@...omium.org>, linux-media@...r.kernel.org,
linux-kernel@...r.kernel.org, Ricardo Ribalda <ribalda@...omium.org>,
Yunke Cao <yunkec@...gle.com>,
Sergey Senozhatsky <senozhatsky@...omium.org>,
Daniel Scally <dan.scally@...asonboard.com>,
Hans Verkuil <hverkuil@...all.nl>
Subject: [PATCH v16 02/18] media: v4l2_ctrl: Add V4L2_CTRL_TYPE_RECT
From: Yunke Cao <yunkec@...gle.com>
Add p_rect to struct v4l2_ext_control with basic support in
v4l2-ctrls.
Reviewed-by: Laurent Pinchart <laurent.pinchart@...asonboard.com>
Reviewed-by: Ricardo Ribalda <ribalda@...omium.org>
Reviewed-by: Sergey Senozhatsky <senozhatsky@...omium.org>
Reviewed-by: Daniel Scally <dan.scally@...asonboard.com>
Signed-off-by: Yunke Cao <yunkec@...gle.com>
Reviewed-by: Hans Verkuil <hverkuil-cisco@...all.nl>
Tested-by: Yunke Cao <yunkec@...gle.com>
Signed-off-by: Ricardo Ribalda <ribalda@...omium.org>
---
.../userspace-api/media/v4l/vidioc-g-ext-ctrls.rst | 4 ++++
.../userspace-api/media/v4l/vidioc-queryctrl.rst | 7 +++++++
.../userspace-api/media/videodev2.h.rst.exceptions | 1 +
drivers/media/v4l2-core/v4l2-ctrls-core.c | 16 +++++++++++++++-
include/media/v4l2-ctrls.h | 2 ++
include/uapi/linux/videodev2.h | 2 ++
6 files changed, 31 insertions(+), 1 deletion(-)
diff --git a/Documentation/userspace-api/media/v4l/vidioc-g-ext-ctrls.rst b/Documentation/userspace-api/media/v4l/vidioc-g-ext-ctrls.rst
index 4d56c0528ad7..b74a74ac06fc 100644
--- a/Documentation/userspace-api/media/v4l/vidioc-g-ext-ctrls.rst
+++ b/Documentation/userspace-api/media/v4l/vidioc-g-ext-ctrls.rst
@@ -199,6 +199,10 @@ still cause this situation.
- ``p_area``
- A pointer to a struct :c:type:`v4l2_area`. Valid if this control is
of type ``V4L2_CTRL_TYPE_AREA``.
+ * - struct :c:type:`v4l2_rect` *
+ - ``p_rect``
+ - A pointer to a struct :c:type:`v4l2_rect`. Valid if this control is
+ of type ``V4L2_CTRL_TYPE_RECT``.
* - struct :c:type:`v4l2_ctrl_h264_sps` *
- ``p_h264_sps``
- A pointer to a struct :c:type:`v4l2_ctrl_h264_sps`. Valid if this control is
diff --git a/Documentation/userspace-api/media/v4l/vidioc-queryctrl.rst b/Documentation/userspace-api/media/v4l/vidioc-queryctrl.rst
index 4d38acafe8e1..56d5c8b0b88b 100644
--- a/Documentation/userspace-api/media/v4l/vidioc-queryctrl.rst
+++ b/Documentation/userspace-api/media/v4l/vidioc-queryctrl.rst
@@ -441,6 +441,13 @@ See also the examples in :ref:`control`.
- n/a
- A struct :c:type:`v4l2_area`, containing the width and the height
of a rectangular area. Units depend on the use case.
+ * - ``V4L2_CTRL_TYPE_RECT``
+ - n/a
+ - n/a
+ - n/a
+ - A struct :c:type:`v4l2_rect`, containing a rectangle described by
+ the position of its top-left corner, the width and the height. Units
+ depend on the use case.
* - ``V4L2_CTRL_TYPE_H264_SPS``
- n/a
- n/a
diff --git a/Documentation/userspace-api/media/videodev2.h.rst.exceptions b/Documentation/userspace-api/media/videodev2.h.rst.exceptions
index 429b5cdf05c3..3cf1380b52b0 100644
--- a/Documentation/userspace-api/media/videodev2.h.rst.exceptions
+++ b/Documentation/userspace-api/media/videodev2.h.rst.exceptions
@@ -150,6 +150,7 @@ replace symbol V4L2_CTRL_TYPE_HEVC_SPS :c:type:`v4l2_ctrl_type`
replace symbol V4L2_CTRL_TYPE_HEVC_PPS :c:type:`v4l2_ctrl_type`
replace symbol V4L2_CTRL_TYPE_HEVC_SLICE_PARAMS :c:type:`v4l2_ctrl_type`
replace symbol V4L2_CTRL_TYPE_AREA :c:type:`v4l2_ctrl_type`
+replace symbol V4L2_CTRL_TYPE_RECT :c:type:`v4l2_ctrl_type`
replace symbol V4L2_CTRL_TYPE_FWHT_PARAMS :c:type:`v4l2_ctrl_type`
replace symbol V4L2_CTRL_TYPE_VP8_FRAME :c:type:`v4l2_ctrl_type`
replace symbol V4L2_CTRL_TYPE_VP9_COMPRESSED_HDR :c:type:`v4l2_ctrl_type`
diff --git a/drivers/media/v4l2-core/v4l2-ctrls-core.c b/drivers/media/v4l2-core/v4l2-ctrls-core.c
index eeab6a5eb7ba..4c8744c8cd96 100644
--- a/drivers/media/v4l2-core/v4l2-ctrls-core.c
+++ b/drivers/media/v4l2-core/v4l2-ctrls-core.c
@@ -370,7 +370,11 @@ void v4l2_ctrl_type_op_log(const struct v4l2_ctrl *ctrl)
case V4L2_CTRL_TYPE_AV1_FILM_GRAIN:
pr_cont("AV1_FILM_GRAIN");
break;
-
+ case V4L2_CTRL_TYPE_RECT:
+ pr_cont("%ux%u@...%d",
+ ptr.p_rect->width, ptr.p_rect->height,
+ ptr.p_rect->left, ptr.p_rect->top);
+ break;
default:
pr_cont("unknown type %d", ctrl->type);
break;
@@ -815,6 +819,7 @@ static int std_validate_compound(const struct v4l2_ctrl *ctrl, u32 idx,
struct v4l2_ctrl_hdr10_mastering_display *p_hdr10_mastering;
struct v4l2_ctrl_hevc_decode_params *p_hevc_decode_params;
struct v4l2_area *area;
+ struct v4l2_rect *rect;
void *p = ptr.p + idx * ctrl->elem_size;
unsigned int i;
@@ -1172,6 +1177,12 @@ static int std_validate_compound(const struct v4l2_ctrl *ctrl, u32 idx,
return -EINVAL;
break;
+ case V4L2_CTRL_TYPE_RECT:
+ rect = p;
+ if (!rect->width || !rect->height)
+ return -EINVAL;
+ break;
+
default:
return -EINVAL;
}
@@ -1872,6 +1883,9 @@ static struct v4l2_ctrl *v4l2_ctrl_new(struct v4l2_ctrl_handler *hdl,
case V4L2_CTRL_TYPE_AREA:
elem_size = sizeof(struct v4l2_area);
break;
+ case V4L2_CTRL_TYPE_RECT:
+ elem_size = sizeof(struct v4l2_rect);
+ break;
default:
if (type < V4L2_CTRL_COMPOUND_TYPES)
elem_size = sizeof(s32);
diff --git a/include/media/v4l2-ctrls.h b/include/media/v4l2-ctrls.h
index 59679a42b3e7..b0db167a3ac4 100644
--- a/include/media/v4l2-ctrls.h
+++ b/include/media/v4l2-ctrls.h
@@ -56,6 +56,7 @@ struct video_device;
* @p_av1_tile_group_entry: Pointer to an AV1 tile group entry structure.
* @p_av1_frame: Pointer to an AV1 frame structure.
* @p_av1_film_grain: Pointer to an AV1 film grain structure.
+ * @p_rect: Pointer to a rectangle.
* @p: Pointer to a compound value.
* @p_const: Pointer to a constant compound value.
*/
@@ -89,6 +90,7 @@ union v4l2_ctrl_ptr {
struct v4l2_ctrl_av1_tile_group_entry *p_av1_tile_group_entry;
struct v4l2_ctrl_av1_frame *p_av1_frame;
struct v4l2_ctrl_av1_film_grain *p_av1_film_grain;
+ struct v4l2_rect *p_rect;
void *p;
const void *p_const;
};
diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h
index e7c4dce39007..c1c2ae150d30 100644
--- a/include/uapi/linux/videodev2.h
+++ b/include/uapi/linux/videodev2.h
@@ -1859,6 +1859,7 @@ struct v4l2_ext_control {
__s32 __user *p_s32;
__s64 __user *p_s64;
struct v4l2_area __user *p_area;
+ struct v4l2_rect __user *p_rect;
struct v4l2_ctrl_h264_sps __user *p_h264_sps;
struct v4l2_ctrl_h264_pps __user *p_h264_pps;
struct v4l2_ctrl_h264_scaling_matrix __user *p_h264_scaling_matrix;
@@ -1929,6 +1930,7 @@ enum v4l2_ctrl_type {
V4L2_CTRL_TYPE_U16 = 0x0101,
V4L2_CTRL_TYPE_U32 = 0x0102,
V4L2_CTRL_TYPE_AREA = 0x0106,
+ V4L2_CTRL_TYPE_RECT = 0x0107,
V4L2_CTRL_TYPE_HDR10_CLL_INFO = 0x0110,
V4L2_CTRL_TYPE_HDR10_MASTERING_DISPLAY = 0x0111,
--
2.47.0.338.g60cca15819-goog
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