media: bttv: move vbi_skip/vbi_count out of buffer

Instead of storing vbi_skip and vbi_count in each bttv buffer separately,
move them to the main bttv struct as they won't change per buffer.
Signed-off-by: Deborah Brouwer <deborah.brouwer@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>

drivers/media/pci/bt8xx/bttv-driver.c

@@ -3631,6 +3631,8 @@ static int bttv_probe(struct pci_dev *dev, const struct pci_device_id *pci_id)
 	btv->input = 0;
 	btv->tvnorm = 0; /* Index into bttv_tvnorms[] i.e. PAL. */
 	bttv_vbi_fmt_reset(&btv->vbi_fmt, btv->tvnorm);
+	btv->vbi_count[0] = VBI_DEFLINES;
+	btv->vbi_count[1] = VBI_DEFLINES;
 	btv->do_crop = 0;
 
 	v4l2_ctrl_new_std(hdl, &bttv_ctrl_ops,

drivers/media/pci/bt8xx/bttv-risc.c

@@ -525,12 +525,12 @@ bttv_buffer_activate_vbi(struct bttv *btv,
 			btwrite(crop,	BT848_O_CROP);
 		}
 
-		if (vbi->vbi_count[0] > 0) {
+		if (btv->vbi_count[0] > 0) {
 			top = &vbi->top;
 			top_irq_flags = 4;
 		}
 
-		if (vbi->vbi_count[1] > 0) {
+		if (btv->vbi_count[1] > 0) {
 			top_irq_flags = 0;
 			bottom = &vbi->bottom;
 			bottom_irq_flags = 4;

drivers/media/pci/bt8xx/bttv-vbi.c

@@ -125,14 +125,14 @@ static int vbi_buffer_prepare(struct videobuf_queue *q,
 
 	redo_dma_risc = 0;
 
-	if (buf->vbi_skip[0] != skip_lines0 ||
-	    buf->vbi_skip[1] != skip_lines1 ||
-	    buf->vbi_count[0] != fh->vbi_fmt.fmt.count[0] ||
-	    buf->vbi_count[1] != fh->vbi_fmt.fmt.count[1]) {
-		buf->vbi_skip[0] = skip_lines0;
-		buf->vbi_skip[1] = skip_lines1;
-		buf->vbi_count[0] = fh->vbi_fmt.fmt.count[0];
-		buf->vbi_count[1] = fh->vbi_fmt.fmt.count[1];
+	if (btv->vbi_skip[0] != skip_lines0 ||
+	    btv->vbi_skip[1] != skip_lines1 ||
+	    btv->vbi_count[0] != fh->vbi_fmt.fmt.count[0] ||
+	    btv->vbi_count[1] != fh->vbi_fmt.fmt.count[1]) {
+		btv->vbi_skip[0] = skip_lines0;
+		btv->vbi_skip[1] = skip_lines1;
+		btv->vbi_count[0] = fh->vbi_fmt.fmt.count[0];
+		btv->vbi_count[1] = fh->vbi_fmt.fmt.count[1];
 		redo_dma_risc = 1;
 	}
 

drivers/media/pci/bt8xx/bttvp.h

@@ -150,8 +150,6 @@ struct bttv_buffer {
 	struct bttv_geometry       geo;
 	struct btcx_riscmem        top;
 	struct btcx_riscmem        bottom;
-	unsigned int               vbi_skip[2];
-	unsigned int               vbi_count[2];
 };
 
 struct bttv_buffer_set {
@@ -239,6 +237,8 @@ void bttv_dma_free(struct videobuf_queue *q, struct bttv *btv,
 /* ---------------------------------------------------------- */
 /* bttv-vbi.c                                                 */
 
+#define VBI_DEFLINES 16
+
 int bttv_try_fmt_vbi_cap(struct file *file, void *fh, struct v4l2_format *f);
 int bttv_g_fmt_vbi_cap(struct file *file, void *fh, struct v4l2_format *f);
 int bttv_s_fmt_vbi_cap(struct file *file, void *fh, struct v4l2_format *f);
@@ -447,6 +447,9 @@ struct bttv {
 	int width;
 	int height;
 	struct bttv_vbi_fmt vbi_fmt;
+	unsigned int vbi_skip[2];
+	unsigned int vbi_count[2];
+
 	/* Application called VIDIOC_S_SELECTION. */
 	int do_crop;