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/*
 *	Access to VGA videoram
 *
 *	(c) 1998 Martin Mares <mj@ucw.cz>
 */
 
#ifndef _LINUX_ASM_VGA_H_
#define _LINUX_ASM_VGA_H_
 
#include <asm/io.h>
 
#define VT_BUF_HAVE_RW
#define VT_BUF_HAVE_MEMSETW
#define VT_BUF_HAVE_MEMCPYW
 
extern inline void scr_writew(u16 val, volatile u16 *addr)
{
	if (__is_ioaddr((unsigned long) addr))
		__raw_writew(val, (unsigned long) addr);
	else
		*addr = val;
}
 
extern inline u16 scr_readw(volatile const u16 *addr)
{
	if (__is_ioaddr((unsigned long) addr))
		return __raw_readw((unsigned long) addr);
	else
		return *addr;
}
 
extern inline void scr_memsetw(u16 *s, u16 c, unsigned int count)
{
	if (__is_ioaddr((unsigned long) s))
		memsetw_io(s, c, count);
	else
		memsetw(s, c, count);
}
 
/* Do not trust that the usage will be correct; analyze the arguments.  */
extern void scr_memcpyw(u16 *d, const u16 *s, unsigned int count);
 
/* ??? These are currently only used for downloading character sets.  As
   such, they don't need memory barriers.  Is this all they are intended
   to be used for?  */
#define vga_readb	readb
#define vga_writeb	writeb
 
#define VGA_MAP_MEM(x)	((unsigned long) ioremap((x), 0))
 
#endif