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| author | Sakari Ailus <sakari.ailus@iki.fi> | 2011-11-14 15:30:24 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2012-04-10 15:02:26 -0300 |
| commit | 5b9d770fa3f5cf210b31137404ae702a33e00473 (patch) | |
| tree | c79c49be9318f88cdecb0b147d70a89f9b3c6163 | |
| parent | 5e6ff7c17bf468b8bc012e49174771e5f718e72c (diff) | |
| download | op-kernel-dev-5b9d770fa3f5cf210b31137404ae702a33e00473.zip op-kernel-dev-5b9d770fa3f5cf210b31137404ae702a33e00473.tar.gz | |
[media] v4l: Support s_crop and g_crop through s/g_selection
Fall back to s_selection if s_crop isn't implemented by a driver. Same for
g_selection / g_crop.
Signed-off-by: Sakari Ailus <sakari.ailus@iki.fi>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
| -rw-r--r-- | drivers/media/video/v4l2-subdev.c | 37 |
1 files changed, 35 insertions, 2 deletions
diff --git a/drivers/media/video/v4l2-subdev.c b/drivers/media/video/v4l2-subdev.c index 7d22538..268d805 100644 --- a/drivers/media/video/v4l2-subdev.c +++ b/drivers/media/video/v4l2-subdev.c @@ -228,6 +228,8 @@ static long subdev_do_ioctl(struct file *file, unsigned int cmd, void *arg) case VIDIOC_SUBDEV_G_CROP: { struct v4l2_subdev_crop *crop = arg; + struct v4l2_subdev_selection sel; + int rval; if (crop->which != V4L2_SUBDEV_FORMAT_TRY && crop->which != V4L2_SUBDEV_FORMAT_ACTIVE) @@ -236,11 +238,27 @@ static long subdev_do_ioctl(struct file *file, unsigned int cmd, void *arg) if (crop->pad >= sd->entity.num_pads) return -EINVAL; - return v4l2_subdev_call(sd, pad, get_crop, subdev_fh, crop); + rval = v4l2_subdev_call(sd, pad, get_crop, subdev_fh, crop); + if (rval != -ENOIOCTLCMD) + return rval; + + memset(&sel, 0, sizeof(sel)); + sel.which = crop->which; + sel.pad = crop->pad; + sel.target = V4L2_SUBDEV_SEL_TGT_CROP_ACTUAL; + + rval = v4l2_subdev_call( + sd, pad, get_selection, subdev_fh, &sel); + + crop->rect = sel.r; + + return rval; } case VIDIOC_SUBDEV_S_CROP: { struct v4l2_subdev_crop *crop = arg; + struct v4l2_subdev_selection sel; + int rval; if (crop->which != V4L2_SUBDEV_FORMAT_TRY && crop->which != V4L2_SUBDEV_FORMAT_ACTIVE) @@ -249,7 +267,22 @@ static long subdev_do_ioctl(struct file *file, unsigned int cmd, void *arg) if (crop->pad >= sd->entity.num_pads) return -EINVAL; - return v4l2_subdev_call(sd, pad, set_crop, subdev_fh, crop); + rval = v4l2_subdev_call(sd, pad, set_crop, subdev_fh, crop); + if (rval != -ENOIOCTLCMD) + return rval; + + memset(&sel, 0, sizeof(sel)); + sel.which = crop->which; + sel.pad = crop->pad; + sel.target = V4L2_SUBDEV_SEL_TGT_CROP_ACTUAL; + sel.r = crop->rect; + + rval = v4l2_subdev_call( + sd, pad, set_selection, subdev_fh, &sel); + + crop->rect = sel.r; + + return rval; } case VIDIOC_SUBDEV_ENUM_MBUS_CODE: { |
