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8b22cc01 | 1 | #ifndef _ASM_POWERPC_VGA_H_ |
2 | #define _ASM_POWERPC_VGA_H_ | |
3 | ||
4 | #ifdef __KERNEL__ | |
5 | ||
1da177e4 LT |
6 | /* |
7 | * Access to VGA videoram | |
8 | * | |
9 | * (c) 1998 Martin Mares <mj@ucw.cz> | |
1da177e4 LT |
10 | */ |
11 | ||
1da177e4 LT |
12 | |
13 | #include <asm/io.h> | |
14 | ||
1da177e4 LT |
15 | |
16 | #if defined(CONFIG_VGA_CONSOLE) || defined(CONFIG_MDA_CONSOLE) | |
17 | ||
18 | #define VT_BUF_HAVE_RW | |
19 | /* | |
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. | |
24 | */ | |
25 | ||
26 | static inline void scr_writew(u16 val, volatile u16 *addr) | |
27 | { | |
28 | st_le16(addr, val); | |
29 | } | |
30 | ||
31 | static inline u16 scr_readw(volatile const u16 *addr) | |
32 | { | |
33 | return ld_le16(addr); | |
34 | } | |
35 | ||
36 | #define VT_BUF_HAVE_MEMCPYW | |
37 | #define scr_memcpyw memcpy | |
38 | ||
39 | #endif /* !CONFIG_VGA_CONSOLE && !CONFIG_MDA_CONSOLE */ | |
40 | ||
41 | extern unsigned long vgacon_remap_base; | |
8b22cc01 | 42 | |
43 | #ifdef __powerpc64__ | |
4f1bcaf0 | 44 | #define VGA_MAP_MEM(x,s) ((unsigned long) ioremap((x), s)) |
8b22cc01 | 45 | #else |
4f1bcaf0 | 46 | #define VGA_MAP_MEM(x,s) (x + vgacon_remap_base) |
8b22cc01 | 47 | #endif |
1da177e4 LT |
48 | |
49 | #define vga_readb(x) (*(x)) | |
50 | #define vga_writeb(x,y) (*(y) = (x)) | |
51 | ||
8b22cc01 | 52 | #endif /* __KERNEL__ */ |
53 | #endif /* _ASM_POWERPC_VGA_H_ */ |