Hi Hans, Hi Laurent,
Thank you for the review!
On Wed, Aug 24, 2022 at 5:50 PM Hans Verkuil <hverkuil-cisco@xxxxxxxxx> wrote:
>
> Hi Yunke,
>
> You will need to rebase this since some of the v4l2-ctrl internals
> have changed.
>
Thanks, I will rebase for the next version.
> On 28/06/2022 09:56, Yunke Cao wrote:
> > Add p_rect to struct v4l2_ext_control with basic support in
> > v4l2-ctrls.
> >
> > Reviewed-by: Ricardo Ribalda <ribalda@xxxxxxxxxxxx>
> > Signed-off-by: Yunke Cao <yunkec@xxxxxxxxxx>
> > ---
> > .../media/v4l/vidioc-g-ext-ctrls.rst | 4 ++++
> > .../media/videodev2.h.rst.exceptions | 1 +
> > drivers/media/v4l2-core/v4l2-ctrls-core.c | 20 +++++++++++++++++++
> > include/media/v4l2-ctrls.h | 2 ++
> > include/uapi/linux/videodev2.h | 2 ++
> > 5 files changed, 29 insertions(+)
> >
> > 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 29971a45a2d4..7473baa4e977 100644
> > --- a/Documentation/userspace-api/media/v4l/vidioc-g-ext-ctrls.rst
> > +++ b/Documentation/userspace-api/media/v4l/vidioc-g-ext-ctrls.rst
> > @@ -189,6 +189,10 @@ 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
>
> You also need to update Documentation/userspace-api/media/v4l/vidioc-queryctrl.rst.
>
Ah, I missed that. Will add it in v8.
> > diff --git a/Documentation/userspace-api/media/videodev2.h.rst.exceptions b/Documentation/userspace-api/media/videodev2.h.rst.exceptions
> > index 9cbb7a0c354a..7b423475281d 100644
> > --- a/Documentation/userspace-api/media/videodev2.h.rst.exceptions
> > +++ b/Documentation/userspace-api/media/videodev2.h.rst.exceptions
> > @@ -147,6 +147,7 @@ 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 949c1884d9c1..35d43ba650db 100644
> > --- a/drivers/media/v4l2-core/v4l2-ctrls-core.c
> > +++ b/drivers/media/v4l2-core/v4l2-ctrls-core.c
> > @@ -84,6 +84,11 @@ static bool std_equal(const struct v4l2_ctrl *ctrl, u32 idx,
> > return ptr1.p_u16[idx] == ptr2.p_u16[idx];
> > case V4L2_CTRL_TYPE_U32:
> > return ptr1.p_u32[idx] == ptr2.p_u32[idx];
> > + case V4L2_CTRL_TYPE_RECT:
> > + return ptr1.p_rect->top == ptr2.p_rect->top &&
> > + ptr1.p_rect->left == ptr2.p_rect->left &&
> > + ptr1.p_rect->height == ptr2.p_rect->height &&
> > + ptr1.p_rect->width == ptr2.p_rect->width;
>
> You don't need to do anything here, it will fallback to a memcmp, and
> that's fine for struct v4l2_rect.
>
Thanks! Will remove it in v8.
Best,
Yunke
> > default:
> > if (ctrl->is_int)
> > return ptr1.p_s32[idx] == ptr2.p_s32[idx];
> > @@ -307,6 +312,11 @@ static void std_log(const struct v4l2_ctrl *ctrl)
> > case V4L2_CTRL_TYPE_VP9_FRAME:
> > pr_cont("VP9_FRAME");
> > break;
> > + case V4L2_CTRL_TYPE_RECT:
> > + pr_cont("%ux%u@%dx%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;
> > @@ -525,6 +535,7 @@ 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;
> >
> > @@ -888,6 +899,12 @@ 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;
> > }
> > @@ -1455,6 +1472,9 @@ 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 b3ce438f1329..919e104de50b 100644
> > --- a/include/media/v4l2-ctrls.h
> > +++ b/include/media/v4l2-ctrls.h
> > @@ -58,6 +58,7 @@ struct video_device;
> > * @p_hdr10_cll: Pointer to an HDR10 Content Light Level structure.
> > * @p_hdr10_mastering: Pointer to an HDR10 Mastering Display structure.
> > * @p_area: Pointer to an area.
> > + * @p_rect: Pointer to a rectangle.
> > * @p: Pointer to a compound value.
> > * @p_const: Pointer to a constant compound value.
> > */
> > @@ -87,6 +88,7 @@ union v4l2_ctrl_ptr {
> > struct v4l2_ctrl_hdr10_cll_info *p_hdr10_cll;
> > struct v4l2_ctrl_hdr10_mastering_display *p_hdr10_mastering;
> > struct v4l2_area *p_area;
> > + 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 343b95107fce..2e36bb610ea6 100644
> > --- a/include/uapi/linux/videodev2.h
> > +++ b/include/uapi/linux/videodev2.h
> > @@ -1754,6 +1754,7 @@ struct v4l2_ext_control {
> > __u16 __user *p_u16;
> > __u32 __user *p_u32;
> > 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 *p_h264_pps;
> > struct v4l2_ctrl_h264_scaling_matrix __user *p_h264_scaling_matrix;
> > @@ -1813,6 +1814,7 @@ 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,
>
> Regards,
>
> Hans
