vga.h

来自「嵌入式系统设计与实验教材二源码linux内核移植与编译」· C头文件 代码 · 共 23 行

/*
 *	Access to VGA videoram
 *
 *	(c) 1998 Martin Mares <[e-mail]>
 *	(c) 1999 Asit Mallick <[e-mail]>
 *	(c) 1999 Don Dugger <[e-mail]>
 */

#ifndef __ASM_IA64_VGA_H_
#define __ASM_IA64_VGA_H_

/*
 * On the PC, we can just recalculate addresses and then access the
 * videoram directly without any black magic.
 */

#define VGA_MAP_MEM(x)	((unsigned long) ioremap((x), 0))

#define vga_readb(x)	(*(x))
#define vga_writeb(x,y)	(*(y) = (x))

#endif /* __ASM_IA64_VGA_H_ */