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/*
* Copyright (C) 2007 Antonino Daplas <adaplas@gmail.com>
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file COPYING in the main directory of this archive
* for more details.
*
*/
#include <linux/fb.h>
#include <linux/pci.h>
#include <linux/module.h>
#include <linux/vgaarb.h>
int fb_is_primary_device(struct fb_info *info)
{
struct device *device = info->device;
struct pci_dev *default_device = vga_default_device();
struct pci_dev *pci_dev;
struct resource *res;
if (!device || !dev_is_pci(device))
return 0;
pci_dev = to_pci_dev(device);
if (default_device) {
if (pci_dev == default_device)
return 1;
return 0;
}
res = pci_dev->resource + PCI_ROM_RESOURCE;
if (res->flags & IORESOURCE_ROM_SHADOW)
return 1;
return 0;
}
EXPORT_SYMBOL(fb_is_primary_device);
MODULE_LICENSE("GPL");
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