C++ (Cpp) saa7134_buffer_pages Examples

Example #1

File: saa7134-core.c Project: QiuLihua83/linux-2.6.10

/* calc max # of buffers from size (must not exceed the 4MB virtual
 * address space per DMA channel) */
int saa7134_buffer_count(unsigned int size, unsigned int count)
{
	unsigned int maxcount;

	maxcount = 1024 / saa7134_buffer_pages(size);
	if (count > maxcount)
		count = maxcount;
	return count;
}

Example #2

File: saa7134-core.c Project: QiuLihua83/linux-2.6.10

int saa7134_buffer_startpage(struct saa7134_buf *buf)
{
	return saa7134_buffer_pages(buf->vb.bsize) * buf->vb.i;
}

Example #3

File: saa7134-core.c Project: DenisLug/mptcp

int saa7134_buffer_startpage(struct saa7134_buf *buf)
{
	return saa7134_buffer_pages(vb2_plane_size(&buf->vb2, 0)) * buf->vb2.v4l2_buf.index;
}