| 1 | |
| 2 | * <linux/patchkey.h> -- definition of _PATCHKEY macro
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| 3 | *
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| 4 | * Copyright (C) 2005 Stuart Brady
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| 5 | *
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| 6 | * This exists because awe_voice.h defined its own _PATCHKEY and it wasn't
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| 7 | * clear whether removing this would break anything in userspace.
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| 8 | *
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| 9 | * Do not include this file directly. Please use <sys/soundcard.h> instead.
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| 10 | * For kernel code, use <linux/soundcard.h>
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| 11 |
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| 12 |
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| 13 | #ifndef _LINUX_PATCHKEY_H_INDIRECT
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| 14 | #error "patchkey.h included directly"
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| 15 | #endif
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| 16 |
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| 17 | #ifndef _LINUX_PATCHKEY_H
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| 18 | #define _LINUX_PATCHKEY_H
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| 19 |
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| 20 |
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| 21 | #ifdef __KERNEL__
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| 22 | # include <asm/byteorder.h>
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| 23 | #else
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| 24 | # include <endian.h>
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| 25 | #endif
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| 26 |
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| 27 | #if defined(__KERNEL__)
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| 28 | # if defined(__BIG_ENDIAN)
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| 29 | # define _PATCHKEY(id) (0xfd00|id)
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| 30 | # elif defined(__LITTLE_ENDIAN)
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| 31 | # define _PATCHKEY(id) ((id<<8)|0x00fd)
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| 32 | # else
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| 33 | # error "could not determine byte order"
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| 34 | # endif
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| 35 | #else
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| 36 | #if defined(__BYTE_ORDER)
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| 37 | # if __BYTE_ORDER == __BIG_ENDIAN
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| 38 | # define _PATCHKEY(id) (0xfd00|id)
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| 39 | # elif __BYTE_ORDER == __LITTLE_ENDIAN
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| 40 | # define _PATCHKEY(id) ((id<<8)|0x00fd)
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| 41 | # else
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| 42 | # error "could not determine byte order"
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| 43 | # endif
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| 44 | #endif
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| 45 | #endif
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| 46 |
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| 47 | #endif /* _LINUX_PATCHKEY_H */
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