[media] vivi: add frame size reporting

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

diff --git a/drivers/media/video/vivi.c b/drivers/media/video/vivi.c
index 463564f..cfa6a42 100644 (file)
--- 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,