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1 | /* |
2 | * <linux/patchkey.h> -- definition of _PATCHKEY macro | |
3 | * | |
4 | * Copyright (C) 2005 Stuart Brady | |
5 | * | |
6 | * This exists because awe_voice.h defined its own _PATCHKEY and it wasn't | |
7 | * clear whether removing this would break anything in userspace. | |
8 | * | |
9 | * Do not include this file directly. Please use <sys/soundcard.h> instead. | |
10 | * For kernel code, use <linux/soundcard.h> | |
11 | */ | |
12 | ||
13 | #ifndef _LINUX_PATCHKEY_H_INDIRECT | |
14 | #error "patchkey.h included directly" | |
15 | #endif | |
16 | ||
17 | #ifndef _UAPI_LINUX_PATCHKEY_H | |
18 | #define _UAPI_LINUX_PATCHKEY_H | |
19 | ||
20 | /* Endian macros. */ | |
21 | #ifndef __KERNEL__ | |
22 | # include <endian.h> | |
23 | #endif | |
24 | ||
25 | #if !defined(__KERNEL__) | |
26 | #if defined(__BYTE_ORDER) | |
27 | # if __BYTE_ORDER == __BIG_ENDIAN | |
28 | # define _PATCHKEY(id) (0xfd00|id) | |
29 | # elif __BYTE_ORDER == __LITTLE_ENDIAN | |
30 | # define _PATCHKEY(id) ((id<<8)|0x00fd) | |
31 | # else | |
32 | # error "could not determine byte order" | |
33 | # endif | |
34 | #endif | |
35 | #endif | |
36 | ||
37 | #endif /* _UAPI_LINUX_PATCHKEY_H */ |