4 files changed, 49 insertions, 17 deletions

diff --git a/drivers/media/common/saa7146_fops.c b/drivers/media/common/saa7146_fops.c
index 09ec964dec5c..b614612be7b4 100644
--- a/drivers/media/common/saa7146_fops.c
+++ b/drivers/media/common/saa7146_fops.c
@@ -253,7 +253,10 @@ static int fops_open(struct inode *inode, struct file *file)
 
 	if( fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
 		DEB_S(("initializing vbi...\n"));
-		result = saa7146_vbi_uops.open(dev,file);
+		if (dev->ext_vv_data->capabilities & V4L2_CAP_VBI_CAPTURE)
+			result = saa7146_vbi_uops.open(dev,file);
+		if (dev->ext_vv_data->vbi_fops.open)
+			dev->ext_vv_data->vbi_fops.open(inode, file);
 	} else {
 		DEB_S(("initializing video...\n"));
 		result = saa7146_video_uops.open(dev,file);
@@ -289,7 +292,10 @@ static int fops_release(struct inode *inode, struct file *file)
 		return -ERESTARTSYS;
 
 	if( fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
-		saa7146_vbi_uops.release(dev,file);
+		if (dev->ext_vv_data->capabilities & V4L2_CAP_VBI_CAPTURE)
+			saa7146_vbi_uops.release(dev,file);
+		if (dev->ext_vv_data->vbi_fops.release)
+			dev->ext_vv_data->vbi_fops.release(inode, file);
 	} else {
 		saa7146_video_uops.release(dev,file);
 	}
@@ -332,6 +338,7 @@ static int fops_mmap(struct file *file, struct vm_area_struct * vma)
 		BUG();
 		return 0;
 	}
+
 	return videobuf_mmap_mapper(q,vma);
 }
 
@@ -381,7 +388,10 @@ static ssize_t fops_read(struct file *file, char __user *data, size_t count, lof
 		}
 	case V4L2_BUF_TYPE_VBI_CAPTURE: {
 //		DEB_EE(("V4L2_BUF_TYPE_VBI_CAPTURE: file:%p, data:%p, count:%lu\n", file, data, (unsigned long)count));
-		return saa7146_vbi_uops.read(file,data,count,ppos);
+		if (fh->dev->ext_vv_data->capabilities & V4L2_CAP_VBI_CAPTURE)
+			return saa7146_vbi_uops.read(file,data,count,ppos);
+		else
+			return -EINVAL;
 		}
 		break;
 	default:
@@ -390,12 +400,31 @@ static ssize_t fops_read(struct file *file, char __user *data, size_t count, lof
 	}
 }
 
+static ssize_t fops_write(struct file *file, const char __user *data, size_t count, loff_t *ppos)
+{
+	struct saa7146_fh *fh = file->private_data;
+
+	switch (fh->type) {
+	case V4L2_BUF_TYPE_VIDEO_CAPTURE:
+		return -EINVAL;
+	case V4L2_BUF_TYPE_VBI_CAPTURE:
+		if (fh->dev->ext_vv_data->vbi_fops.write)
+			return fh->dev->ext_vv_data->vbi_fops.write(file, data, count, ppos);
+		else
+			return -EINVAL;
+	default:
+		BUG();
+		return -EINVAL;
+	}
+}
+
 static struct file_operations video_fops =
 {
 	.owner		= THIS_MODULE,
 	.open		= fops_open,
 	.release	= fops_release,
 	.read		= fops_read,
+	.write		= fops_write,
 	.poll		= fops_poll,
 	.mmap		= fops_mmap,
 	.ioctl		= fops_ioctl,
@@ -467,7 +496,8 @@ int saa7146_vv_init(struct saa7146_dev* dev, struct saa7146_ext_vv *ext_vv)
 	memset(vv->d_clipping.cpu_addr, 0x0, SAA7146_CLIPPING_MEM);
 
 	saa7146_video_uops.init(dev,vv);
-	saa7146_vbi_uops.init(dev,vv);
+	if (dev->ext_vv_data->capabilities & V4L2_CAP_VBI_CAPTURE)
+		saa7146_vbi_uops.init(dev,vv);
 
 	dev->vv_data = vv;
 	dev->vv_callback = &vv_callback;
diff --git a/drivers/media/common/saa7146_hlp.c b/drivers/media/common/saa7146_hlp.c
index ec52dff8cb69..33bec8a6843b 100644
--- a/drivers/media/common/saa7146_hlp.c
+++ b/drivers/media/common/saa7146_hlp.c
@@ -562,19 +562,26 @@ static void saa7146_set_position(struct saa7146_dev *dev, int w_x, int w_y, int
 
 	int b_depth = vv->ov_fmt->depth;
 	int b_bpl = vv->ov_fb.fmt.bytesperline;
-	u32 base = (u32)vv->ov_fb.base;
+	/* The unsigned long cast is to remove a 64-bit compile warning since
+	   it looks like a 64-bit address is cast to a 32-bit value, even
+	   though the base pointer is really a 32-bit physical address that
+	   goes into a 32-bit DMA register.
+	   FIXME: might not work on some 64-bit platforms, but see the FIXME
+	   in struct v4l2_framebuffer (videodev2.h) for that.
+	 */
+	u32 base = (u32)(unsigned long)vv->ov_fb.base;
 
 	struct	saa7146_video_dma vdma1;
 
 	/* calculate memory offsets for picture, look if we shall top-down-flip */
 	vdma1.pitch	= 2*b_bpl;
 	if ( 0 == vv->vflip ) {
-		vdma1.base_even = (u32)base + (w_y * (vdma1.pitch/2)) + (w_x * (b_depth / 8));
+		vdma1.base_even = base + (w_y * (vdma1.pitch/2)) + (w_x * (b_depth / 8));
 		vdma1.base_odd  = vdma1.base_even + (vdma1.pitch / 2);
 		vdma1.prot_addr = vdma1.base_even + (w_height * (vdma1.pitch / 2));
 	}
 	else {
-		vdma1.base_even = (u32)base + ((w_y+w_height) * (vdma1.pitch/2)) + (w_x * (b_depth / 8));
+		vdma1.base_even = base + ((w_y+w_height) * (vdma1.pitch/2)) + (w_x * (b_depth / 8));
 		vdma1.base_odd  = vdma1.base_even - (vdma1.pitch / 2);
 		vdma1.prot_addr = vdma1.base_odd - (w_height * (vdma1.pitch / 2));
 	}
diff --git a/drivers/media/common/saa7146_vbi.c b/drivers/media/common/saa7146_vbi.c
index 063986ec16b5..468d3c959075 100644
--- a/drivers/media/common/saa7146_vbi.c
+++ b/drivers/media/common/saa7146_vbi.c
@@ -500,9 +500,9 @@ static ssize_t vbi_read(struct file *file, char __user *data, size_t count, loff
 }
 
 struct saa7146_use_ops saa7146_vbi_uops = {
-	.init 		= vbi_init,
-	.open 		= vbi_open,
+	.init		= vbi_init,
+	.open		= vbi_open,
 	.release	= vbi_close,
 	.irq_done	= vbi_irq_done,
-	.read 		= vbi_read,
+	.read		= vbi_read,
 };
diff --git a/drivers/media/common/saa7146_video.c b/drivers/media/common/saa7146_video.c
index 1d961023b837..7ebac7949df3 100644
--- a/drivers/media/common/saa7146_video.c
+++ b/drivers/media/common/saa7146_video.c
@@ -151,8 +151,8 @@ static int try_win(struct saa7146_dev *dev, struct v4l2_window *win)
 
 	if (V4L2_FIELD_ANY == field) {
 		field = (win->w.height > maxh/2)
-		        ? V4L2_FIELD_INTERLACED
-		        : V4L2_FIELD_TOP;
+			? V4L2_FIELD_INTERLACED
+			: V4L2_FIELD_TOP;
 		}
 	switch (field) {
 	case V4L2_FIELD_TOP:
@@ -1114,10 +1114,6 @@ int saa7146_video_do_ioctl(struct inode *inode, struct file *file, unsigned int
 		return 0;
 	}
 	case VIDIOC_OVERLAY:
-
-
-
-
 	{
 		int on = *(int *)arg;
 		int err = 0;
@@ -1359,7 +1355,6 @@ static void buffer_queue(struct videobuf_queue *q, struct videobuf_buffer *vb)
 	saa7146_buffer_queue(fh->dev,&vv->video_q,buf);
 }
 
-
 static void buffer_release(struct videobuf_queue *q, struct videobuf_buffer *vb)
 {
 	struct file *file = q->priv_data;