diff options
Diffstat (limited to 'kernel/include/asm-generic/vga.h')
| -rw-r--r-- | kernel/include/asm-generic/vga.h | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/kernel/include/asm-generic/vga.h b/kernel/include/asm-generic/vga.h new file mode 100644 index 000000000..36c8ff520 --- /dev/null +++ b/kernel/include/asm-generic/vga.h @@ -0,0 +1,24 @@ +/* + * Access to VGA videoram + * + * (c) 1998 Martin Mares <mj@ucw.cz> + */ +#ifndef __ASM_GENERIC_VGA_H +#define __ASM_GENERIC_VGA_H + +/* + * On most architectures that support VGA, we can just + * recalculate addresses and then access the videoram + * directly without any black magic. + * + * Everyone else needs to ioremap the address and use + * proper I/O accesses. + */ +#ifndef VGA_MAP_MEM +#define VGA_MAP_MEM(x, s) (unsigned long)phys_to_virt(x) +#endif + +#define vga_readb(x) (*(x)) +#define vga_writeb(x, y) (*(y) = (x)) + +#endif /* _ASM_GENERIC_VGA_H */ |