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authorRalf Baechle <ralf@linux-mips.org>2005-07-11 06:37:51 -0400
committerRalf Baechle <ralf@linux-mips.org>2005-10-29 14:31:41 -0400
commitc0ec406c80a65590dbdb60ed0d0c8e73e6c3884f (patch)
treefaf7c0ed89dd2473951db9c464eb4e301ceab680 /include/asm-mips/vga.h
parent3ef33e68c1e956bb9a93734062076edcccca7070 (diff)
Fix endianess bugs.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'include/asm-mips/vga.h')
-rw-r--r--include/asm-mips/vga.h25
1 files changed, 25 insertions, 0 deletions
diff --git a/include/asm-mips/vga.h b/include/asm-mips/vga.h
index 6b35cf054c79..ca5cec97e167 100644
--- a/include/asm-mips/vga.h
+++ b/include/asm-mips/vga.h
@@ -6,6 +6,8 @@
6#ifndef _ASM_VGA_H 6#ifndef _ASM_VGA_H
7#define _ASM_VGA_H 7#define _ASM_VGA_H
8 8
9#include <asm/byteorder.h>
10
9/* 11/*
10 * On the PC, we can just recalculate addresses and then 12 * On the PC, we can just recalculate addresses and then
11 * access the videoram directly without any black magic. 13 * access the videoram directly without any black magic.
@@ -16,4 +18,27 @@
16#define vga_readb(x) (*(x)) 18#define vga_readb(x) (*(x))
17#define vga_writeb(x,y) (*(y) = (x)) 19#define vga_writeb(x,y) (*(y) = (x))
18 20
21#define VT_BUF_HAVE_RW
22/*
23 * These are only needed for supporting VGA or MDA text mode, which use little
24 * endian byte ordering.
25 * In other cases, we can optimize by using native byte ordering and
26 * <linux/vt_buffer.h> has already done the right job for us.
27 */
28
29static inline void scr_writew(u16 val, volatile u16 *addr)
30{
31 *addr = cpu_to_le16(val);
32}
33
34static inline u16 scr_readw(volatile const u16 *addr)
35{
36 return le16_to_cpu(*addr);
37}
38
39#define scr_memcpyw(d, s, c) memcpy(d, s, c)
40#define scr_memmovew(d, s, c) memmove(d, s, c)
41#define VT_BUF_HAVE_MEMCPYW
42#define VT_BUF_HAVE_MEMMOVEW
43
19#endif /* _ASM_VGA_H */ 44#endif /* _ASM_VGA_H */