V4L/DVB (3516): Make video_buf more generic

Video_buf were concerned to allow PCI devices to be used as
video capture devices. This patch extends video_buf features
by virtualizing pci-dependent functions and allowing other
type of devices to use it.
It is still DMA centric, although it may be used also by
devices that emulates scatter/gather behavior or a DMA device

Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

1 files changed, 3 insertions, 2 deletions

diff --git a/drivers/media/common/saa7146_fops.c b/drivers/media/common/saa7146_fops.c
index 3870fa948cc0..523ab3851c7b 100644
--- a/drivers/media/common/saa7146_fops.c
+++ b/drivers/media/common/saa7146_fops.c
@@ -50,14 +50,15 @@ void saa7146_res_free(struct saa7146_fh *fh, unsigned int bits)
 /********************************************************************************/
 /* common dma functions */
 
-void saa7146_dma_free(struct saa7146_dev *dev,struct saa7146_buf *buf)
+void saa7146_dma_free(struct saa7146_dev *dev,struct videobuf_queue *q,
+                                                struct saa7146_buf *buf)
 {
         DEB_EE(("dev:%p, buf:%p\n",dev,buf));
 
         BUG_ON(in_interrupt());
 
         videobuf_waiton(&buf->vb,0,0);
-        videobuf_dma_pci_unmap(dev->pci, &buf->vb.dma);
+        videobuf_dma_unmap(q, &buf->vb.dma);
         videobuf_dma_free(&buf->vb.dma);
         buf->vb.state = STATE_NEEDS_INIT;
 }