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