out_be32(&vr->picture_count, reg_val.picture_count);
}
-static int viu_start_preview(struct viu_dev *dev, struct viu_fh *fh)
+static int viu_setup_preview(struct viu_dev *dev, struct viu_fh *fh)
{
int bpp;
/* setup the base address of the overlay buffer */
reg_val.field_base_addr = (u32)dev->ovbuf.base;
- dev->ovenable = 1;
- viu_activate_overlay(dev->vr);
-
- /* start dma */
- viu_start_dma(dev);
return 0;
}
fh->win = f->fmt.win;
spin_lock_irqsave(&dev->slock, flags);
- viu_start_preview(dev, fh);
+ viu_setup_preview(dev, fh);
spin_unlock_irqrestore(&dev->slock, flags);
return 0;
}
return 0;
}
+static int vidioc_overlay(struct file *file, void *priv, unsigned int on)
+{
+ struct viu_fh *fh = priv;
+ struct viu_dev *dev = (struct viu_dev *)fh->dev;
+ unsigned long flags;
+
+ if (on) {
+ spin_lock_irqsave(&dev->slock, flags);
+ viu_activate_overlay(dev->vr);
+ dev->ovenable = 1;
+
+ /* start dma */
+ viu_start_dma(dev);
+ spin_unlock_irqrestore(&dev->slock, flags);
+ } else {
+ viu_stop_dma(dev);
+ dev->ovenable = 0;
+ }
+
+ return 0;
+}
+
int vidioc_g_fbuf(struct file *file, void *priv, struct v4l2_framebuffer *arg)
{
struct viu_fh *fh = priv;
.vidioc_g_fmt_vid_overlay = vidioc_g_fmt_overlay,
.vidioc_try_fmt_vid_overlay = vidioc_try_fmt_overlay,
.vidioc_s_fmt_vid_overlay = vidioc_s_fmt_overlay,
+ .vidioc_overlay = vidioc_overlay,
.vidioc_g_fbuf = vidioc_g_fbuf,
.vidioc_s_fbuf = vidioc_s_fbuf,
.vidioc_reqbufs = vidioc_reqbufs,