mirror of https://gerrit.osmocom.org/libusrp
109 lines
2.3 KiB
C++
109 lines
2.3 KiB
C++
/* -*- c++ -*- */
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/*
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* Copyright 2004 Free Software Foundation, Inc.
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*
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* This file is part of GNU Radio
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*
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* GNU Radio is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3, or (at your option)
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* any later version.
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*
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* GNU Radio is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GNU Radio; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street,
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* Boston, MA 02110-1301, USA.
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*/
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#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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