1 files changed, 118 insertions, 169 deletions

diff --git a/drivers/media/common/saa7146/saa7146_vbi.c b/drivers/media/common/saa7146/saa7146_vbi.c
index bd442b984423..bb7d81f7eba6 100644
--- a/drivers/media/common/saa7146/saa7146_vbi.c
+++ b/drivers/media/common/saa7146/saa7146_vbi.c
@@ -207,7 +207,6 @@ static int buffer_activate(struct saa7146_dev *dev,
 			   struct saa7146_buf *next)
 {
 	struct saa7146_vv *vv = dev->vv_data;
-	buf->vb.state = VIDEOBUF_ACTIVE;
 
 	DEB_VBI("dev:%p, buf:%p, next:%p\n", dev, buf, next);
 	saa7146_set_vbi_capture(dev,buf,next);
@@ -216,114 +215,101 @@ static int buffer_activate(struct saa7146_dev *dev,
 	return 0;
 }
 
-static int buffer_prepare(struct videobuf_queue *q, struct videobuf_buffer *vb,enum v4l2_field field)
-{
-	struct file *file = q->priv_data;
-	struct saa7146_fh *fh = file->private_data;
-	struct saa7146_dev *dev = fh->dev;
-	struct saa7146_buf *buf = (struct saa7146_buf *)vb;
+/* ------------------------------------------------------------------ */
 
-	int err = 0;
-	int lines, llength, size;
+static int queue_setup(struct vb2_queue *q,
+		       unsigned int *num_buffers, unsigned int *num_planes,
+		       unsigned int sizes[], struct device *alloc_devs[])
+{
+	unsigned int size = 16 * 2 * vbi_pixel_to_capture;
 
-	lines   = 16 * 2 ; /* 2 fields */
-	llength = vbi_pixel_to_capture;
-	size = lines * llength;
+	if (*num_planes)
+		return sizes[0] < size ? -EINVAL : 0;
+	*num_planes = 1;
+	sizes[0] = size;
 
-	DEB_VBI("vb:%p\n", vb);
+	return 0;
+}
 
-	if (0 != buf->vb.baddr  &&  buf->vb.bsize < size) {
-		DEB_VBI("size mismatch\n");
-		return -EINVAL;
-	}
+static void buf_queue(struct vb2_buffer *vb)
+{
+	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
+	struct vb2_queue *vq = vb->vb2_queue;
+	struct saa7146_dev *dev = vb2_get_drv_priv(vq);
+	struct saa7146_buf *buf = container_of(vbuf, struct saa7146_buf, vb);
+	unsigned long flags;
 
-	if (buf->vb.size != size)
-		saa7146_dma_free(dev,q,buf);
+	spin_lock_irqsave(&dev->slock, flags);
 
-	if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
-		struct videobuf_dmabuf *dma=videobuf_to_dma(&buf->vb);
+	saa7146_buffer_queue(dev, &dev->vv_data->vbi_dmaq, buf);
+	spin_unlock_irqrestore(&dev->slock, flags);
+}
 
-		buf->vb.width  = llength;
-		buf->vb.height = lines;
-		buf->vb.size   = size;
-		buf->vb.field  = field;	// FIXME: check this
+static int buf_init(struct vb2_buffer *vb)
+{
+	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
+	struct saa7146_buf *buf = container_of(vbuf, struct saa7146_buf, vb);
+	struct sg_table *sgt = vb2_dma_sg_plane_desc(&buf->vb.vb2_buf, 0);
+	struct scatterlist *list = sgt->sgl;
+	int length = sgt->nents;
+	struct vb2_queue *vq = vb->vb2_queue;
+	struct saa7146_dev *dev = vb2_get_drv_priv(vq);
+	int ret;
 
-		saa7146_pgtable_free(dev->pci, &buf->pt[2]);
-		saa7146_pgtable_alloc(dev->pci, &buf->pt[2]);
-
-		err = videobuf_iolock(q,&buf->vb, NULL);
-		if (err)
-			goto oops;
-		err = saa7146_pgtable_build_single(dev->pci, &buf->pt[2],
-						 dma->sglist, dma->sglen);
-		if (0 != err)
-			return err;
-	}
-	buf->vb.state = VIDEOBUF_PREPARED;
 	buf->activate = buffer_activate;
 
-	return 0;
-
- oops:
-	DEB_VBI("error out\n");
-	saa7146_dma_free(dev,q,buf);
+	saa7146_pgtable_alloc(dev->pci, &buf->pt[2]);
 
-	return err;
+	ret = saa7146_pgtable_build_single(dev->pci, &buf->pt[2],
+					   list, length);
+	if (ret)
+		saa7146_pgtable_free(dev->pci, &buf->pt[2]);
+	return ret;
 }
 
-static int buffer_setup(struct videobuf_queue *q, unsigned int *count, unsigned int *size)
+static int buf_prepare(struct vb2_buffer *vb)
 {
-	int llength,lines;
-
-	lines   = 16 * 2 ; /* 2 fields */
-	llength = vbi_pixel_to_capture;
-
-	*size = lines * llength;
-	*count = 2;
-
-	DEB_VBI("count:%d, size:%d\n", *count, *size);
+	unsigned int size = 16 * 2 * vbi_pixel_to_capture;
 
+	if (vb2_plane_size(vb, 0) < size)
+		return -EINVAL;
+	vb2_set_plane_payload(vb, 0, size);
 	return 0;
 }
 
-static void buffer_queue(struct videobuf_queue *q, struct videobuf_buffer *vb)
+static void buf_cleanup(struct vb2_buffer *vb)
 {
-	struct file *file = q->priv_data;
-	struct saa7146_fh *fh = file->private_data;
-	struct saa7146_dev *dev = fh->dev;
-	struct saa7146_vv *vv = dev->vv_data;
-	struct saa7146_buf *buf = (struct saa7146_buf *)vb;
+	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
+	struct saa7146_buf *buf = container_of(vbuf, struct saa7146_buf, vb);
+	struct vb2_queue *vq = vb->vb2_queue;
+	struct saa7146_dev *dev = vb2_get_drv_priv(vq);
 
-	DEB_VBI("vb:%p\n", vb);
-	saa7146_buffer_queue(dev, &vv->vbi_dmaq, buf);
+	saa7146_pgtable_free(dev->pci, &buf->pt[2]);
 }
 
-static void buffer_release(struct videobuf_queue *q, struct videobuf_buffer *vb)
+static void return_buffers(struct vb2_queue *q, int state)
 {
-	struct file *file = q->priv_data;
-	struct saa7146_fh *fh   = file->private_data;
-	struct saa7146_dev *dev = fh->dev;
-	struct saa7146_buf *buf = (struct saa7146_buf *)vb;
-
-	DEB_VBI("vb:%p\n", vb);
-	saa7146_dma_free(dev,q,buf);
+	struct saa7146_dev *dev = vb2_get_drv_priv(q);
+	struct saa7146_dmaqueue *dq = &dev->vv_data->vbi_dmaq;
+	struct saa7146_buf *buf;
+
+	if (dq->curr) {
+		buf = dq->curr;
+		dq->curr = NULL;
+		vb2_buffer_done(&buf->vb.vb2_buf, state);
+	}
+	while (!list_empty(&dq->queue)) {
+		buf = list_entry(dq->queue.next, struct saa7146_buf, list);
+		list_del(&buf->list);
+		vb2_buffer_done(&buf->vb.vb2_buf, state);
+	}
 }
 
-static const struct videobuf_queue_ops vbi_qops = {
-	.buf_setup    = buffer_setup,
-	.buf_prepare  = buffer_prepare,
-	.buf_queue    = buffer_queue,
-	.buf_release  = buffer_release,
-};
-
-/* ------------------------------------------------------------------ */
-
-static void vbi_stop(struct saa7146_fh *fh, struct file *file)
+static void vbi_stop(struct saa7146_dev *dev)
 {
-	struct saa7146_dev *dev = fh->dev;
 	struct saa7146_vv *vv = dev->vv_data;
 	unsigned long flags;
-	DEB_VBI("dev:%p, fh:%p\n", dev, fh);
+	DEB_VBI("dev:%p\n", dev);
 
 	spin_lock_irqsave(&dev->slock,flags);
 
@@ -336,13 +322,6 @@ static void vbi_stop(struct saa7146_fh *fh, struct file *file)
 	/* shut down dma 3 transfers */
 	saa7146_write(dev, MC1, MASK_20);
 
-	if (vv->vbi_dmaq.curr)
-		saa7146_buffer_finish(dev, &vv->vbi_dmaq, VIDEOBUF_DONE);
-
-	videobuf_queue_cancel(&fh->vbi_q);
-
-	vv->vbi_streaming = NULL;
-
 	del_timer(&vv->vbi_dmaq.timeout);
 	del_timer(&vv->vbi_read_timeout);
 
@@ -352,38 +331,22 @@ static void vbi_stop(struct saa7146_fh *fh, struct file *file)
 static void vbi_read_timeout(struct timer_list *t)
 {
 	struct saa7146_vv *vv = from_timer(vv, t, vbi_read_timeout);
-	struct file *file = vv->vbi_read_timeout_file;
-	struct saa7146_fh *fh = file->private_data;
-	struct saa7146_dev *dev = fh->dev;
-
-	DEB_VBI("dev:%p, fh:%p\n", dev, fh);
+	struct saa7146_dev *dev = vv->vbi_dmaq.dev;
 
-	vbi_stop(fh, file);
-}
-
-static void vbi_init(struct saa7146_dev *dev, struct saa7146_vv *vv)
-{
 	DEB_VBI("dev:%p\n", dev);
 
-	INIT_LIST_HEAD(&vv->vbi_dmaq.queue);
-
-	timer_setup(&vv->vbi_dmaq.timeout, saa7146_buffer_timeout, 0);
-	vv->vbi_dmaq.dev              = dev;
-
-	init_waitqueue_head(&vv->vbi_wq);
+	vbi_stop(dev);
 }
 
-static int vbi_open(struct saa7146_dev *dev, struct file *file)
+static int vbi_begin(struct saa7146_dev *dev)
 {
-	struct saa7146_fh *fh = file->private_data;
-	struct saa7146_vv *vv = fh->dev->vv_data;
-
+	struct saa7146_vv *vv = dev->vv_data;
 	u32 arbtr_ctrl	= saa7146_read(dev, PCI_BT_V1);
 	int ret = 0;
 
-	DEB_VBI("dev:%p, fh:%p\n", dev, fh);
+	DEB_VBI("dev:%p\n", dev);
 
-	ret = saa7146_res_get(fh, RESOURCE_DMA3_BRS);
+	ret = saa7146_res_get(dev, RESOURCE_DMA3_BRS);
 	if (0 == ret) {
 		DEB_S("cannot get vbi RESOURCE_DMA3_BRS resource\n");
 		return -EBUSY;
@@ -395,15 +358,7 @@ static int vbi_open(struct saa7146_dev *dev, struct file *file)
 	saa7146_write(dev, PCI_BT_V1, arbtr_ctrl);
 	saa7146_write(dev, MC2, (MASK_04|MASK_20));
 
-	videobuf_queue_sg_init(&fh->vbi_q, &vbi_qops,
-			    &dev->pci->dev, &dev->slock,
-			    V4L2_BUF_TYPE_VBI_CAPTURE,
-			    V4L2_FIELD_SEQ_TB, // FIXME: does this really work?
-			    sizeof(struct saa7146_buf),
-			    file, &dev->v4l2_lock);
-
 	vv->vbi_read_timeout.function = vbi_read_timeout;
-	vv->vbi_read_timeout_file = file;
 
 	/* initialize the brs */
 	if ( 0 != (SAA7146_USE_PORT_B_FOR_VBI & dev->ext_vv_data->flags)) {
@@ -422,16 +377,52 @@ static int vbi_open(struct saa7146_dev *dev, struct file *file)
 	return 0;
 }
 
-static void vbi_close(struct saa7146_dev *dev, struct file *file)
+static int start_streaming(struct vb2_queue *q, unsigned int count)
 {
-	struct saa7146_fh *fh = file->private_data;
-	struct saa7146_vv *vv = dev->vv_data;
-	DEB_VBI("dev:%p, fh:%p\n", dev, fh);
+	struct saa7146_dev *dev = vb2_get_drv_priv(q);
+	int ret;
+
+	if (!vb2_is_streaming(&dev->vv_data->vbi_dmaq.q))
+		dev->vv_data->seqnr = 0;
+	ret = vbi_begin(dev);
+	if (ret)
+		return_buffers(q, VB2_BUF_STATE_QUEUED);
+	return ret;
+}
 
-	if( fh == vv->vbi_streaming ) {
-		vbi_stop(fh, file);
-	}
-	saa7146_res_free(fh, RESOURCE_DMA3_BRS);
+static void stop_streaming(struct vb2_queue *q)
+{
+	struct saa7146_dev *dev = vb2_get_drv_priv(q);
+
+	vbi_stop(dev);
+	return_buffers(q, VB2_BUF_STATE_ERROR);
+	saa7146_res_free(dev, RESOURCE_DMA3_BRS);
+}
+
+const struct vb2_ops vbi_qops = {
+	.queue_setup	= queue_setup,
+	.buf_queue	= buf_queue,
+	.buf_init	= buf_init,
+	.buf_prepare	= buf_prepare,
+	.buf_cleanup	= buf_cleanup,
+	.start_streaming = start_streaming,
+	.stop_streaming = stop_streaming,
+	.wait_prepare	= vb2_ops_wait_prepare,
+	.wait_finish	= vb2_ops_wait_finish,
+};
+
+/* ------------------------------------------------------------------ */
+
+static void vbi_init(struct saa7146_dev *dev, struct saa7146_vv *vv)
+{
+	DEB_VBI("dev:%p\n", dev);
+
+	INIT_LIST_HEAD(&vv->vbi_dmaq.queue);
+
+	timer_setup(&vv->vbi_dmaq.timeout, saa7146_buffer_timeout, 0);
+	vv->vbi_dmaq.dev              = dev;
+
+	init_waitqueue_head(&vv->vbi_wq);
 }
 
 static void vbi_irq_done(struct saa7146_dev *dev, unsigned long status)
@@ -441,10 +432,7 @@ static void vbi_irq_done(struct saa7146_dev *dev, unsigned long status)
 
 	if (vv->vbi_dmaq.curr) {
 		DEB_VBI("dev:%p, curr:%p\n", dev, vv->vbi_dmaq.curr);
-		/* this must be += 2, one count for each field */
-		vv->vbi_fieldcount+=2;
-		vv->vbi_dmaq.curr->vb.field_count = vv->vbi_fieldcount;
-		saa7146_buffer_finish(dev, &vv->vbi_dmaq, VIDEOBUF_DONE);
+		saa7146_buffer_finish(dev, &vv->vbi_dmaq, VB2_BUF_STATE_DONE);
 	} else {
 		DEB_VBI("dev:%p\n", dev);
 	}
@@ -453,46 +441,7 @@ static void vbi_irq_done(struct saa7146_dev *dev, unsigned long status)
 	spin_unlock(&dev->slock);
 }
 
-static ssize_t vbi_read(struct file *file, char __user *data, size_t count, loff_t *ppos)
-{
-	struct saa7146_fh *fh = file->private_data;
-	struct saa7146_dev *dev = fh->dev;
-	struct saa7146_vv *vv = dev->vv_data;
-	ssize_t ret = 0;
-
-	DEB_VBI("dev:%p, fh:%p\n", dev, fh);
-
-	if( NULL == vv->vbi_streaming ) {
-		// fixme: check if dma3 is available
-		// fixme: activate vbi engine here if necessary. (really?)
-		vv->vbi_streaming = fh;
-	}
-
-	if( fh != vv->vbi_streaming ) {
-		DEB_VBI("open %p is already using vbi capture\n",
-			vv->vbi_streaming);
-		return -EBUSY;
-	}
-
-	mod_timer(&vv->vbi_read_timeout, jiffies+BUFFER_TIMEOUT);
-	ret = videobuf_read_stream(&fh->vbi_q, data, count, ppos, 1,
-				   file->f_flags & O_NONBLOCK);
-/*
-	printk("BASE_ODD3:      0x%08x\n", saa7146_read(dev, BASE_ODD3));
-	printk("BASE_EVEN3:     0x%08x\n", saa7146_read(dev, BASE_EVEN3));
-	printk("PROT_ADDR3:     0x%08x\n", saa7146_read(dev, PROT_ADDR3));
-	printk("PITCH3:         0x%08x\n", saa7146_read(dev, PITCH3));
-	printk("BASE_PAGE3:     0x%08x\n", saa7146_read(dev, BASE_PAGE3));
-	printk("NUM_LINE_BYTE3: 0x%08x\n", saa7146_read(dev, NUM_LINE_BYTE3));
-	printk("BRS_CTRL:       0x%08x\n", saa7146_read(dev, BRS_CTRL));
-*/
-	return ret;
-}
-
 const struct saa7146_use_ops saa7146_vbi_uops = {
 	.init		= vbi_init,
-	.open		= vbi_open,
-	.release	= vbi_close,
 	.irq_done	= vbi_irq_done,
-	.read		= vbi_read,
 };