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/*

 *      Access to VGA videoram

 *

 *      (c) 1998 Martin Mares <mj@ucw.cz>

 */

#ifdef __KERNEL__

#ifndef _LINUX_ASM_VGA_H_

#define _LINUX_ASM_VGA_H_

#include <asm/io.h>

#include <linux/config.h>

#if defined(CONFIG_VGA_CONSOLE) || defined(CONFIG_MDA_CONSOLE)

#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.

 */

extern inline void scr_writew(u16 val, volatile u16 *addr)

{

    st_le16(addr, val);

}

extern inline u16 scr_readw(volatile const u16 *addr)

{

    return ld_le16(addr);

}

#define VT_BUF_HAVE_MEMCPYW

#define scr_memcpyw     memcpy

#endif /* !CONFIG_VGA_CONSOLE && !CONFIG_MDA_CONSOLE */

extern unsigned long vgacon_remap_base;

#define VGA_MAP_MEM(x) (x + vgacon_remap_base)

#define vga_readb(x) (*(x))

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

#endif

#endif /* __KERNEL__ */