unsigned long vb2_fop_get_unmapped_area(struct file *file, unsigned long addr,
unsigned long len, unsigned long pgoff, unsigned long flags)
{
struct video_device *vdev = video_devdata(file);
return vb2_get_unmapped_area(vdev->queue, addr, len, pgoff, flags);
}
/*
* Get unmapped area.
*
* NO-MMU arch need this function to make mmap() work correctly.
*/
unsigned long uvcg_queue_get_unmapped_area(struct uvc_video_queue *queue,
unsigned long pgoff)
{
unsigned long ret;
mutex_lock(&queue->mutex);
ret = vb2_get_unmapped_area(&queue->queue, 0, 0, pgoff, 0);
mutex_unlock(&queue->mutex);
return ret;
}
/*
* Get unmapped area.
*
* NO-MMU arch need this function to make mmap() work correctly.
*/
unsigned long uvcg_queue_get_unmapped_area(struct uvc_video_queue *queue,
unsigned long pgoff)
{
return vb2_get_unmapped_area(&queue->queue, 0, 0, pgoff, 0);
}