]>
Commit | Line | Data |
---|---|---|
b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
8b22cc01 | 2 | #ifndef _ASM_POWERPC_VGA_H_ |
3 | #define _ASM_POWERPC_VGA_H_ | |
4 | ||
5 | #ifdef __KERNEL__ | |
6 | ||
1da177e4 LT |
7 | /* |
8 | * Access to VGA videoram | |
9 | * | |
10 | * (c) 1998 Martin Mares <mj@ucw.cz> | |
1da177e4 LT |
11 | */ |
12 | ||
1da177e4 LT |
13 | |
14 | #include <asm/io.h> | |
15 | ||
1da177e4 LT |
16 | |
17 | #if defined(CONFIG_VGA_CONSOLE) || defined(CONFIG_MDA_CONSOLE) | |
18 | ||
19 | #define VT_BUF_HAVE_RW | |
20 | /* | |
21 | * These are only needed for supporting VGA or MDA text mode, which use little | |
22 | * endian byte ordering. | |
23 | * In other cases, we can optimize by using native byte ordering and | |
24 | * <linux/vt_buffer.h> has already done the right job for us. | |
25 | */ | |
26 | ||
27 | static inline void scr_writew(u16 val, volatile u16 *addr) | |
28 | { | |
f5718726 | 29 | *addr = cpu_to_le16(val); |
1da177e4 LT |
30 | } |
31 | ||
32 | static inline u16 scr_readw(volatile const u16 *addr) | |
33 | { | |
f5718726 | 34 | return le16_to_cpu(*addr); |
1da177e4 LT |
35 | } |
36 | ||
ac036f95 MW |
37 | #define VT_BUF_HAVE_MEMSETW |
38 | static inline void scr_memsetw(u16 *s, u16 v, unsigned int n) | |
39 | { | |
40 | memset16(s, cpu_to_le16(v), n / 2); | |
41 | } | |
42 | ||
1da177e4 | 43 | #define VT_BUF_HAVE_MEMCPYW |
ac036f95 | 44 | #define VT_BUF_HAVE_MEMMOVEW |
1da177e4 | 45 | #define scr_memcpyw memcpy |
ac036f95 | 46 | #define scr_memmovew memmove |
1da177e4 LT |
47 | |
48 | #endif /* !CONFIG_VGA_CONSOLE && !CONFIG_MDA_CONSOLE */ | |
49 | ||
8b22cc01 | 50 | #ifdef __powerpc64__ |
4f1bcaf0 | 51 | #define VGA_MAP_MEM(x,s) ((unsigned long) ioremap((x), s)) |
8b22cc01 | 52 | #else |
e88f157d | 53 | #define VGA_MAP_MEM(x,s) (x) |
8b22cc01 | 54 | #endif |
1da177e4 LT |
55 | |
56 | #define vga_readb(x) (*(x)) | |
57 | #define vga_writeb(x,y) (*(y) = (x)) | |
58 | ||
8b22cc01 | 59 | #endif /* __KERNEL__ */ |
60 | #endif /* _ASM_POWERPC_VGA_H_ */ |