static int
vbi_prepare(struct videobuf_queue *q, struct videobuf_buffer *vb,
enum v4l2_field field)
{
struct cx8800_fh *fh = q->priv_data;
struct cx8800_dev *dev = fh->dev;
struct cx88_buffer *buf = container_of(vb,struct cx88_buffer,vb);
unsigned int size;
int rc;
size = VBI_LINE_COUNT * VBI_LINE_LENGTH * 2;
if (0 != buf->vb.baddr && buf->vb.bsize < size)
return -EINVAL;
if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
struct videobuf_dmabuf *dma=videobuf_to_dma(&buf->vb);
buf->vb.width = VBI_LINE_LENGTH;
buf->vb.height = VBI_LINE_COUNT;
buf->vb.size = size;
buf->vb.field = V4L2_FIELD_SEQ_TB;
if (0 != (rc = videobuf_iolock(q,&buf->vb,NULL)))
goto fail;
cx88_risc_buffer(dev->pci, &buf->risc,
dma->sglist,
0, buf->vb.width * buf->vb.height,
buf->vb.width, 0,
buf->vb.height);
}
buf->vb.state = VIDEOBUF_PREPARED;
return 0;
fail:
cx88_free_buffer(q,buf);
return rc;
}
static void vbi_release(struct videobuf_queue *q, struct videobuf_buffer *vb)
{
struct cx88_buffer *buf = container_of(vb,struct cx88_buffer,vb);
cx88_free_buffer(q,buf);
}
static void dvb_buf_release(struct videobuf_queue *q, struct videobuf_buffer *vb)
{
struct cx8802_dev *dev = q->priv_data;
cx88_free_buffer(dev->pci, (struct cx88_buffer*)vb);
}
static void dvb_buf_release(struct videobuf_queue *q,
struct videobuf_buffer *vb)
{
cx88_free_buffer(q, (struct cx88_buffer*)vb);
}