projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 317b3c21 | 1 | /* |
| 317b3c21 AD |
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> | |
| 7c52d551 | 11 | #include <linux/module.h> |
| 88674088 | 12 | #include <linux/vgaarb.h> |
| 317b3c21 AD |
13 | |
| 14 | int fb_is_primary_device(struct fb_info *info) | |
| 15 | { | |
| 623e71b0 | 16 | struct device *device = info->device; |
| 88674088 | 17 | struct pci_dev *default_device = vga_default_device(); |
| 743146db VK |
18 | struct pci_dev *pci_dev; |
| 19 | struct resource *res; | |
| 317b3c21 | 20 | |
| 743146db | 21 | if (!device || !dev_is_pci(device)) |
| 88674088 MG |
22 | return 0; |
| 23 | ||
| 743146db VK |
24 | pci_dev = to_pci_dev(device); |
| 25 | ||
| 88674088 MG |
26 | if (default_device) { |
| 27 | if (pci_dev == default_device) | |
| 28 | return 1; | |
| 743146db | 29 | return 0; |
| 88674088 MG |
30 | } |
| 31 | ||
| 743146db | 32 | res = pci_dev->resource + PCI_ROM_RESOURCE; |
| 317b3c21 | 33 | |
| 743146db | 34 | if (res->flags & IORESOURCE_ROM_SHADOW) |
| 88674088 | 35 | return 1; |
| 317b3c21 | 36 | |
| 88674088 | 37 | return 0; |
| 317b3c21 AD |
38 | } |
| 39 | EXPORT_SYMBOL(fb_is_primary_device); | |
| 7b04fa01 | 40 | MODULE_LICENSE("GPL"); |