arch/x86/include/asm/vga.h

   1 /*
   2  *      Access to VGA videoram
   3  *
   4  *      (c) 1998 Martin Mares <mj@ucw.cz>
   5  */
   6
   7 #ifndef _ASM_X86_VGA_H
   8 #define _ASM_X86_VGA_H
   9
  10 /*
  11  *      On the PC, we can just recalculate addresses and then
  12  *      access the videoram directly without any black magic.
  13  */
  14
  15 #define VGA_MAP_MEM(x, s) (unsigned long)phys_to_virt(x)
  16
  17 #define vga_readb(x) (*(x))
  18 #define vga_writeb(x, y) (*(y) = (x))
  19
  20 #ifdef CONFIG_FB_EFI
  21 #define __ARCH_HAS_VGA_DEFAULT_DEVICE
  22 extern struct pci_dev *vga_default_device(void);
  23 extern void vga_set_default_device(struct pci_dev *pdev);
  24 #endif
  25
  26 #endif /* _ASM_X86_VGA_H */