| /* |
| * Access to VGA videoram |
| * |
| * (c) 1998 Martin Mares <mj@ucw.cz> |
| * |
| * 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> |
| |
| #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. |
| */ |
| |
| 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 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) ((unsigned long) ioremap((x), 0)) |
| |
| #define vga_readb(x) (*(x)) |
| #define vga_writeb(x,y) (*(y) = (x)) |
| |
| #endif |