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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