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c0a5c1509e
git-svn-id: http://wush.net/svn/range/software/public/openbts/trunk@2242 19bc5d8c-e614-43d4-8b26-e1612bc8e597
88 lines
1.5 KiB
C
88 lines
1.5 KiB
C
#ifndef INCLUDED_USRP_BYTESEX_H
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#define INCLUDED_USRP_BYTESEX_H
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/*!
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* \brief routines for convertering between host and usrp byte order
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*
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* Prior to including this file, the user must include "config.h"
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* which will or won't define WORDS_BIGENDIAN based on the
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* result of the AC_C_BIGENDIAN autoconf test.
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*/
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#ifdef HAVE_BYTESWAP_H
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#include <byteswap.h>
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#else
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#warning Using non-portable code (likely wrong other than ILP32).
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static inline unsigned short int
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bswap_16 (unsigned short int x)
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{
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return ((((x) >> 8) & 0xff) | (((x) & 0xff) << 8));
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}
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static inline unsigned int
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bswap_32 (unsigned int x)
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{
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return ((((x) & 0xff000000) >> 24) | (((x) & 0x00ff0000) >> 8) \
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| (((x) & 0x0000ff00) << 8) | (((x) & 0x000000ff) << 24));
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}
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#endif
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#ifdef WORDS_BIGENDIAN
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static inline unsigned int
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host_to_usrp_u32 (unsigned int x)
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{
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return bswap_32(x);
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}
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static inline unsigned int
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usrp_to_host_u32 (unsigned int x)
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{
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return bswap_32(x);
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}
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static inline short int
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host_to_usrp_short (short int x)
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{
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return bswap_16 (x);
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}
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static inline short int
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usrp_to_host_short (short int x)
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{
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return bswap_16 (x);
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}
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#else
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static inline unsigned int
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host_to_usrp_u32 (unsigned int x)
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{
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return x;
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}
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static inline unsigned int
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usrp_to_host_u32 (unsigned int x)
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{
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return x;
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}
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static inline short int
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host_to_usrp_short (short int x)
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{
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return x;
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}
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static inline short int
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usrp_to_host_short (unsigned short int x)
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{
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return x;
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}
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#endif
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#endif /* INCLUDED_USRP_BYTESEX_H */
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