[media] v4l: v4l2_subdev userspace crop API

This patch adds the VIDIOC_SUBDEV_S_CROP and G_CROP ioctls to the
userland API. CROPCAP is not implemented because it's redundant.

Signed-off-by: Antti Koskipaa <akoskipa@gmail.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 26 insertions, 0 deletions

diff --git a/drivers/media/video/v4l2-subdev.c b/drivers/media/video/v4l2-subdev.c
index a4a12563ec3c..6e76f734c780 100644
--- a/drivers/media/video/v4l2-subdev.c
+++ b/drivers/media/video/v4l2-subdev.c
@@ -213,6 +213,32 @@ static long subdev_do_ioctl(struct file *file, unsigned int cmd, void *arg)
                 return v4l2_subdev_call(sd, pad, set_fmt, subdev_fh, format);
         }
 
+        case VIDIOC_SUBDEV_G_CROP: {
+                struct v4l2_subdev_crop *crop = arg;
+
+                if (crop->which != V4L2_SUBDEV_FORMAT_TRY &&
+                    crop->which != V4L2_SUBDEV_FORMAT_ACTIVE)
+                        return -EINVAL;
+
+                if (crop->pad >= sd->entity.num_pads)
+                        return -EINVAL;
+
+                return v4l2_subdev_call(sd, pad, get_crop, subdev_fh, crop);
+        }
+
+        case VIDIOC_SUBDEV_S_CROP: {
+                struct v4l2_subdev_crop *crop = arg;
+
+                if (crop->which != V4L2_SUBDEV_FORMAT_TRY &&
+                    crop->which != V4L2_SUBDEV_FORMAT_ACTIVE)
+                        return -EINVAL;
+
+                if (crop->pad >= sd->entity.num_pads)
+                        return -EINVAL;
+
+                return v4l2_subdev_call(sd, pad, set_crop, subdev_fh, crop);
+        }
+
         case VIDIOC_SUBDEV_ENUM_MBUS_CODE: {
                 struct v4l2_subdev_mbus_code_enum *code = arg;