1 #ifndef _ASM_POWERPC_VGA_H_
2 #define _ASM_POWERPC_VGA_H_
7 * Access to VGA videoram
9 * (c) 1998 Martin Mares <mj@ucw.cz>
16 #if defined(CONFIG_VGA_CONSOLE) || defined(CONFIG_MDA_CONSOLE)
18 #define VT_BUF_HAVE_RW
20 * These are only needed for supporting VGA or MDA text mode, which use little
21 * endian byte ordering.
22 * In other cases, we can optimize by using native byte ordering and
23 * <linux/vt_buffer.h> has already done the right job for us.
26 static inline void scr_writew(u16 val
, volatile u16
*addr
)
28 *addr
= cpu_to_le16(val
);
31 static inline u16
scr_readw(volatile const u16
*addr
)
33 return le16_to_cpu(*addr
);
36 #define VT_BUF_HAVE_MEMCPYW
37 #define scr_memcpyw memcpy
39 #endif /* !CONFIG_VGA_CONSOLE && !CONFIG_MDA_CONSOLE */
42 #define VGA_MAP_MEM(x,s) ((unsigned long) ioremap((x), s))
44 #define VGA_MAP_MEM(x,s) (x)
47 #define vga_readb(x) (*(x))
48 #define vga_writeb(x,y) (*(y) = (x))
50 #endif /* __KERNEL__ */
51 #endif /* _ASM_POWERPC_VGA_H_ */