vga.h (587B)
1/* SPDX-License-Identifier: GPL-2.0 */ 2/* 3 * Access to VGA videoram 4 * 5 * (c) 1998 Martin Mares <mj@ucw.cz> 6 */ 7#ifndef __ASM_GENERIC_VGA_H 8#define __ASM_GENERIC_VGA_H 9 10/* 11 * On most architectures that support VGA, we can just 12 * recalculate addresses and then access the videoram 13 * directly without any black magic. 14 * 15 * Everyone else needs to ioremap the address and use 16 * proper I/O accesses. 17 */ 18#ifndef VGA_MAP_MEM 19#define VGA_MAP_MEM(x, s) (unsigned long)phys_to_virt(x) 20#endif 21 22#define vga_readb(x) (*(x)) 23#define vga_writeb(x, y) (*(y) = (x)) 24 25#endif /* _ASM_GENERIC_VGA_H */