39 lines
965 B
C
39 lines
965 B
C
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/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
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/*
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* <linux/patchkey.h> -- definition of _PATCHKEY macro
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*
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* Copyright (C) 2005 Stuart Brady
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*
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* This exists because awe_voice.h defined its own _PATCHKEY and it wasn't
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* clear whether removing this would break anything in userspace.
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*
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* Do not include this file directly. Please use <sys/soundcard.h> instead.
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* For kernel code, use <linux/soundcard.h>
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*/
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#ifndef _LINUX_PATCHKEY_H_INDIRECT
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#error "patchkey.h included directly"
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#endif
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#ifndef _UAPI_LINUX_PATCHKEY_H
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#define _UAPI_LINUX_PATCHKEY_H
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/* Endian macros. */
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#ifndef __KERNEL__
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# include <endian.h>
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#endif
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#if !defined(__KERNEL__)
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#if defined(__BYTE_ORDER)
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# if __BYTE_ORDER == __BIG_ENDIAN
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# define _PATCHKEY(id) (0xfd00|id)
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# elif __BYTE_ORDER == __LITTLE_ENDIAN
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# define _PATCHKEY(id) ((id<<8)|0x00fd)
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# else
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# error "could not determine byte order"
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# endif
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#endif
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#endif
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#endif /* _UAPI_LINUX_PATCHKEY_H */
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