add dummy overlay ioctl

Change-Id: Ie84120b0f4be615a5dbd1978bd2e3aa9b5da464f

diff --git a/drivers/media/video/svvd.c b/drivers/media/video/svvd.c
index c2924473428d105903f7e3bcf9bb726b9a603b91..e6bfce9f4749b66fcfbb66a710b2376a77c46021 100755 (executable)
--- a/drivers/media/video/svvd.c
+++ b/drivers/media/video/svvd.c
@@ -348,7 +348,7 @@ buffer_prepare(struct videobuf_queue *vq, struct videobuf_buffer *vb,
            fh->height < 32 || fh->height > norm_maxh())
                return -EINVAL;
 
-       buf->vb.size = fh->width*fh->height*2;
+       buf->vb.size = fh->width * fh->height * fh->fmt->depth / 8;     // RGB888 (24bit)
        if (0 != buf->vb.baddr  &&  buf->vb.bsize < buf->vb.size)
                return -EINVAL;
 
@@ -425,6 +425,13 @@ static int svvd_querycap(struct file *file, void  *priv,
        return 0;
 }
 
+static int svvd_g_fmt_vid_overlay(struct file *file, void *priv,
+                                       struct v4l2_format *f)
+{
+       // TODO: 
+       return 0;
+}
+
 static int svvd_s_fmt_vid_overlay(struct file *file, void *priv,
                                        struct v4l2_format *f)
 {
@@ -539,6 +546,13 @@ static int svvd_s_crop(struct file *file, void *priv,
        return 0;
 }
 
+static int svvd_overlay (struct file *file, void *fh,
+                                       unsigned int i)
+{
+       // TODO: qemu job
+       return 0;
+}
+
 /* ------------------------------------------------------------------
        File operations for the device
    ------------------------------------------------------------------*/
@@ -650,14 +664,16 @@ static const struct v4l2_file_operations svvd_fops = {
 
 static const struct v4l2_ioctl_ops svvd_ioctl_ops = {
        .vidioc_querycap      = svvd_querycap,
+       .vidioc_g_fmt_vid_overlay = svvd_g_fmt_vid_overlay,
        .vidioc_s_fmt_vid_overlay = svvd_s_fmt_vid_overlay,
        .vidioc_reqbufs       = svvd_reqbufs,
        .vidioc_querybuf      = svvd_querybuf,
-       .vidioc_qbuf          = svvd_qbuf,
-       .vidioc_dqbuf         = svvd_dqbuf,
-       .vidioc_s_std         = svvd_s_std,
+//     .vidioc_qbuf          = svvd_qbuf,
+//     .vidioc_dqbuf         = svvd_dqbuf,
+//     .vidioc_s_std         = svvd_s_std,
        .vidioc_cropcap       = svvd_cropcap,
        .vidioc_s_crop        = svvd_s_crop,
+       .vidioc_overlay       = svvd_overlay,
 #ifdef CONFIG_VIDEO_V4L1_COMPAT
        .vidiocgmbuf          = svvdgmbuf,
 #endif