LXR linux/arch/x86/video/fbdev.c

   1/*
   2 * Copyright (C) 2007 Antonino Daplas <adaplas@gmail.com>
   3 *
   4 * This file is subject to the terms and conditions of the GNU General Public
   5 * License.  See the file COPYING in the main directory of this archive
   6 * for more details.
   7 *
   8 */
   9#include <linux/fb.h>
  10#include <linux/pci.h>
  11#include <linux/module.h>
  12
  13int fb_is_primary_device(struct fb_info *info)
  14{
  15        struct device *device = info->device;
  16        struct pci_dev *pci_dev = NULL;
  17        struct resource *res = NULL;
  18        int retval = 0;
  19
  20        if (device)
  21                pci_dev = to_pci_dev(device);
  22
  23        if (pci_dev)
  24                res = &pci_dev->resource[PCI_ROM_RESOURCE];
  25
  26        if (res && res->flags & IORESOURCE_ROM_SHADOW)
  27                retval = 1;
  28
  29        return retval;
  30}
  31EXPORT_SYMBOL(fb_is_primary_device);
  32MODULE_LICENSE("GPL");
  33