mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-10-31 08:28:13 +00:00
46 lines
1.1 KiB
C
46 lines
1.1 KiB
C
|
/*
|
||
|
|
* <linux/patchkey.h> -- definition of _PATCHKEY macro
|
||
|
|
*
|
||
|
|
* Copyright (C) 2005 Stuart Brady
|
||
|
|
*
|
||
|
|
* This exists because awe_voice.h defined its own _PATCHKEY and it wasn't
|
||
|
|
* clear whether removing this would break anything in userspace.
|
||
|
|
*
|
||
|
|
* Do not include this file directly. Please use <sys/soundcard.h> instead.
|
||
|
|
* For kernel code, use <linux/soundcard.h>
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef _LINUX_PATCHKEY_H_INDIRECT
|
||
|
|
#error "patchkey.h included directly"
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifndef _LINUX_PATCHKEY_H
|
||
|
|
#define _LINUX_PATCHKEY_H
|
||
|
|
|
||
|
|
/* Endian macros. */
|
||
|
|
#ifdef __KERNEL__
|
||
|
|
# include <asm/byteorder.h>
|
||
|
|
#else
|
||
|
|
# include <endian.h>
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if defined(__KERNEL__)
|
||
|
|
# if defined(__BIG_ENDIAN)
|
||
|
|
# define _PATCHKEY(id) (0xfd00|id)
|
||
|
|
# elif defined(__LITTLE_ENDIAN)
|
||
|
|
# define _PATCHKEY(id) ((id<<8)|0x00fd)
|
||
|
|
# else
|
||
|
|
# error "could not determine byte order"
|
||
|
|
# endif
|
||
|
|
#elif defined(__BYTE_ORDER)
|
||
|
|
# if __BYTE_ORDER == __BIG_ENDIAN
|
||
|
|
# define _PATCHKEY(id) (0xfd00|id)
|
||
|
|
# elif __BYTE_ORDER == __LITTLE_ENDIAN
|
||
|
|
# define _PATCHKEY(id) ((id<<8)|0x00fd)
|
||
|
|
# else
|
||
|
|
# error "could not determine byte order"
|
||
|
|
# endif
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#endif /* _LINUX_PATCHKEY_H */
|