| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Access to VGA videoram |
| 3 | * |
| 4 | * (c) 1998 Martin Mares <mj@ucw.cz> |
| 5 | */ |
| 6 | |
| H. Peter Anvin | 1965aae | 2008-10-22 22:26:29 -0700 | [diff] [blame] | 7 | #ifndef _ASM_X86_VGA_H |
| 8 | #define _ASM_X86_VGA_H |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9 | |
| 10 | /* |
| 11 | * On the PC, we can just recalculate addresses and then |
| 12 | * access the videoram directly without any black magic. |
| 13 | */ |
| 14 | |
| Joe Perches | 364fe5e | 2008-03-23 01:03:57 -0700 | [diff] [blame] | 15 | #define VGA_MAP_MEM(x, s) (unsigned long)phys_to_virt(x) |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 16 | |
| 17 | #define vga_readb(x) (*(x)) |
| Joe Perches | 364fe5e | 2008-03-23 01:03:57 -0700 | [diff] [blame] | 18 | #define vga_writeb(x, y) (*(y) = (x)) |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 19 | |
| Matthew Garrett | b4aa016 | 2012-04-16 16:26:05 -0400 | [diff] [blame] | 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 | |
| H. Peter Anvin | 1965aae | 2008-10-22 22:26:29 -0700 | [diff] [blame] | 26 | #endif /* _ASM_X86_VGA_H */ |