1 | /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ |
2 | /* |
3 | * <linux/patchkey.h> -- definition of _PATCHKEY macro |
4 | * |
5 | * Copyright (C) 2005 Stuart Brady |
6 | * |
7 | * This exists because awe_voice.h defined its own _PATCHKEY and it wasn't |
8 | * clear whether removing this would break anything in userspace. |
9 | * |
10 | * Do not include this file directly. Please use <sys/soundcard.h> instead. |
11 | * For kernel code, use <linux/soundcard.h> |
12 | */ |
13 | |
14 | #ifndef _LINUX_PATCHKEY_H_INDIRECT |
15 | #error "patchkey.h included directly" |
16 | #endif |
17 | |
18 | #ifndef _UAPI_LINUX_PATCHKEY_H |
19 | #define _UAPI_LINUX_PATCHKEY_H |
20 | |
21 | /* Endian macros. */ |
22 | #ifndef __KERNEL__ |
23 | # include <endian.h> |
24 | #endif |
25 | |
26 | #if !defined(__KERNEL__) |
27 | #if defined(__BYTE_ORDER) |
28 | # if __BYTE_ORDER == __BIG_ENDIAN |
29 | # define _PATCHKEY(id) (0xfd00|id) |
30 | # elif __BYTE_ORDER == __LITTLE_ENDIAN |
31 | # define _PATCHKEY(id) ((id<<8)|0x00fd) |
32 | # else |
33 | # error "could not determine byte order" |
34 | # endif |
35 | #endif |
36 | #endif |
37 | |
38 | #endif /* _UAPI_LINUX_PATCHKEY_H */ |
39 | |