blob: c09849743f454acaea4340f3be5bdeae63224ffb [file] [log] [blame]
* Access to VGA videoram
* (c) 1998 Martin Mares <>
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
#ifndef _LINUX_ASM_VGA_H_
#define _LINUX_ASM_VGA_H_
#include <asm/io.h>
#include <linux/config.h>
#define VT_BUF_HAVE_RW
* These are only needed for supporting VGA or MDA text mode, which use little
* endian byte ordering.
* In other cases, we can optimize by using native byte ordering and
* <linux/vt_buffer.h> has already done the right job for us.
static inline void scr_writew(u16 val, volatile u16 *addr)
st_le16(addr, val);
static inline u16 scr_readw(volatile const u16 *addr)
return ld_le16(addr);
#define scr_memcpyw memcpy
extern unsigned long vgacon_remap_base;
#define VGA_MAP_MEM(x) ((unsigned long) ioremap((x), 0))
#define vga_readb(x) (*(x))
#define vga_writeb(x,y) (*(y) = (x))