/* * 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__ */