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#include <linux/vgaarb.h>
13
14int fb_is_primary_device(struct fb_info *info)
15{
16	struct device *device = info->device;
17	struct pci_dev *pci_dev = NULL;
18	struct pci_dev *default_device = vga_default_device();
19	struct resource *res = NULL;
 
20
21	if (device)
22		pci_dev = to_pci_dev(device);
23
24	if (!pci_dev)
25		return 0;
26
27	if (default_device) {
28		if (pci_dev == default_device)
29			return 1;
30		else
31			return 0;
32	}
33
34	res = &pci_dev->resource[PCI_ROM_RESOURCE];
35
36	if (res && res->flags & IORESOURCE_ROM_SHADOW)
37		return 1;
38
39	return 0;
40}
41EXPORT_SYMBOL(fb_is_primary_device);
42MODULE_LICENSE("GPL");

 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
12int fb_is_primary_device(struct fb_info *info)
13{
14	struct device *device = info->device;
15	struct pci_dev *pci_dev = NULL;
 
16	struct resource *res = NULL;
17	int retval = 0;
18
19	if (device)
20		pci_dev = to_pci_dev(device);
21
22	if (pci_dev)
23		res = &pci_dev->resource[PCI_ROM_RESOURCE];
 
 
 
 
 
 
 
 
 
24
25	if (res && res->flags & IORESOURCE_ROM_SHADOW)
26		retval = 1;
27
28	return retval;
29}
30EXPORT_SYMBOL(fb_is_primary_device);
31MODULE_LICENSE("GPL");