[media] vivi: add frame size reporting

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 22 insertions, 0 deletions

diff --git a/drivers/media/video/vivi.c b/drivers/media/video/vivi.c
index 463564f0e3c2..cfa6a421c0a2 100644
--- a/drivers/media/video/vivi.c
+++ b/drivers/media/video/vivi.c
@@ -991,6 +991,27 @@ static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
         return 0;
 }
 
+static int vidioc_enum_framesizes(struct file *file, void *fh,
+                                         struct v4l2_frmsizeenum *fsize)
+{
+        static const struct v4l2_frmsize_stepwise sizes = {
+                48, MAX_WIDTH, 4,
+                32, MAX_HEIGHT, 1
+        };
+        int i;
+
+        if (fsize->index)
+                return -EINVAL;
+        for (i = 0; i < ARRAY_SIZE(formats); i++)
+                if (formats[i].fourcc == fsize->pixel_format)
+                        break;
+        if (i == ARRAY_SIZE(formats))
+                return -EINVAL;
+        fsize->type = V4L2_FRMSIZE_TYPE_STEPWISE;
+        fsize->stepwise = sizes;
+        return 0;
+}
+
 /* only one input in this sample driver */
 static int vidioc_enum_input(struct file *file, void *priv,
                                 struct v4l2_input *inp)
@@ -1175,6 +1196,7 @@ static const struct v4l2_ioctl_ops vivi_ioctl_ops = {
         .vidioc_g_fmt_vid_cap     = vidioc_g_fmt_vid_cap,
         .vidioc_try_fmt_vid_cap   = vidioc_try_fmt_vid_cap,
         .vidioc_s_fmt_vid_cap     = vidioc_s_fmt_vid_cap,
+        .vidioc_enum_framesizes   = vidioc_enum_framesizes,
         .vidioc_reqbufs       = vb2_ioctl_reqbufs,
         .vidioc_create_bufs   = vb2_ioctl_create_bufs,
         .vidioc_prepare_buf   = vb2_ioctl_prepare_buf,