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;
}
if (err)
return err;
- mutex_lock(&dev->lock);
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);
- mutex_unlock(&dev->lock);
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;
static int vidioc_streamon(struct file *file, void *priv, enum v4l2_buf_type i)
{
struct viu_fh *fh = priv;
+ struct viu_dev *dev = fh->dev;
if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
return -EINVAL;
if (fh->type != i)
return -EINVAL;
+ if (dev->ovenable)
+ dev->ovenable = 0;
+
viu_start_dma(fh->dev);
return videobuf_streamon(&fh->vb_vidq);
videobuf_queue_dma_contig_init(&fh->vb_vidq, &viu_video_qops,
dev->dev, &fh->vbq_lock,
fh->type, V4L2_FIELD_INTERLACED,
- sizeof(struct viu_buf), fh, NULL);
+ sizeof(struct viu_buf), fh,
+ &fh->dev->lock);
return 0;
}
.release = viu_release,
.read = viu_read,
.poll = viu_poll,
- .ioctl = video_ioctl2, /* V4L2 ioctl handler */
+ .unlocked_ioctl = video_ioctl2, /* V4L2 ioctl handler */
.mmap = viu_mmap,
};
.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,
INIT_LIST_HEAD(&viu_dev->vidq.active);
INIT_LIST_HEAD(&viu_dev->vidq.queued);
- /* initialize locks */
- mutex_init(&viu_dev->lock);
-
snprintf(viu_dev->v4l2_dev.name,
sizeof(viu_dev->v4l2_dev.name), "%s", "VIU");
ret = v4l2_device_register(viu_dev->dev, &viu_dev->v4l2_dev);
viu_dev->vdev = vdev;
+ /* initialize locks */
+ mutex_init(&viu_dev->lock);
+ viu_dev->vdev->lock = &viu_dev->lock;
+ spin_lock_init(&viu_dev->slock);
+
video_set_drvdata(viu_dev->vdev, viu_dev);
+ mutex_lock(&viu_dev->lock);
+
ret = video_register_device(viu_dev->vdev, VFL_TYPE_GRABBER, -1);
if (ret < 0) {
video_device_release(viu_dev->vdev);
goto err_irq;
}
+ mutex_unlock(&viu_dev->lock);
+
dev_info(&op->dev, "Freescale VIU Video Capture Board\n");
return ret;
err_clk:
video_unregister_device(viu_dev->vdev);
err_vdev:
+ mutex_unlock(&viu_dev->lock);
i2c_put_adapter(ad);
v4l2_device_unregister(&viu_dev->v4l2_dev);
err: