[media] v4l: add support for selection api
This patch introduces new api for a precise control of cropping and composing
features for video devices. The new ioctls are VIDIOC_S_SELECTION and
VIDIOC_G_SELECTION.
Signed-off-by: Tomasz Stanislawski <t.stanislaws@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/video/v4l2-compat-ioctl32.c b/drivers/media/video/v4l2-compat-ioctl32.c
index c68531b..af4419e 100644
--- a/drivers/media/video/v4l2-compat-ioctl32.c
+++ b/drivers/media/video/v4l2-compat-ioctl32.c
@@ -985,6 +985,8 @@
case VIDIOC_CROPCAP:
case VIDIOC_G_CROP:
case VIDIOC_S_CROP:
+ case VIDIOC_G_SELECTION:
+ case VIDIOC_S_SELECTION:
case VIDIOC_G_JPEGCOMP:
case VIDIOC_S_JPEGCOMP:
case VIDIOC_QUERYSTD:
diff --git a/drivers/media/video/v4l2-ioctl.c b/drivers/media/video/v4l2-ioctl.c
index 639abee..072cfc1 100644
--- a/drivers/media/video/v4l2-ioctl.c
+++ b/drivers/media/video/v4l2-ioctl.c
@@ -238,6 +238,8 @@
[_IOC_NR(VIDIOC_CROPCAP)] = "VIDIOC_CROPCAP",
[_IOC_NR(VIDIOC_G_CROP)] = "VIDIOC_G_CROP",
[_IOC_NR(VIDIOC_S_CROP)] = "VIDIOC_S_CROP",
+ [_IOC_NR(VIDIOC_G_SELECTION)] = "VIDIOC_G_SELECTION",
+ [_IOC_NR(VIDIOC_S_SELECTION)] = "VIDIOC_S_SELECTION",
[_IOC_NR(VIDIOC_G_JPEGCOMP)] = "VIDIOC_G_JPEGCOMP",
[_IOC_NR(VIDIOC_S_JPEGCOMP)] = "VIDIOC_S_JPEGCOMP",
[_IOC_NR(VIDIOC_QUERYSTD)] = "VIDIOC_QUERYSTD",
@@ -1571,6 +1573,38 @@
ret = ops->vidioc_s_crop(file, fh, p);
break;
}
+ case VIDIOC_G_SELECTION:
+ {
+ struct v4l2_selection *p = arg;
+
+ if (!ops->vidioc_g_selection)
+ break;
+
+ dbgarg(cmd, "type=%s\n", prt_names(p->type, v4l2_type_names));
+
+ ret = ops->vidioc_g_selection(file, fh, p);
+ if (!ret)
+ dbgrect(vfd, "", &p->r);
+ break;
+ }
+ case VIDIOC_S_SELECTION:
+ {
+ struct v4l2_selection *p = arg;
+
+ if (!ops->vidioc_s_selection)
+ break;
+
+ if (ret_prio) {
+ ret = ret_prio;
+ break;
+ }
+
+ dbgarg(cmd, "type=%s\n", prt_names(p->type, v4l2_type_names));
+ dbgrect(vfd, "", &p->r);
+
+ ret = ops->vidioc_s_selection(file, fh, p);
+ break;
+ }
case VIDIOC_CROPCAP:
{
struct v4l2_cropcap *p = arg;