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/* -*- c++ -*- */
/*
* Copyright 2004 Free Software Foundation, Inc.
*
* This file is part of GNU Radio
*
* GNU Radio is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* GNU Radio is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GNU Radio; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street,
* Boston, MA 02110-1301, USA.
*/
#ifndef INCLUDED_USRP_BYTESEX_H
#define INCLUDED_USRP_BYTESEX_H
/*!
* \brief routines for convertering between host and usrp byte order
*
* Prior to including this file, the user must include "config.h"
* which will or won't define WORDS_BIGENDIAN based on the
* result of the AC_C_BIGENDIAN autoconf test.
*/
#ifdef HAVE_BYTESWAP_H
#include <byteswap.h>
#else
#warning Using non-portable code (likely wrong other than ILP32).
static inline unsigned short int
bswap_16 (unsigned short int x)
{
return ((((x) >> 8) & 0xff) | (((x) & 0xff) << 8));
}
static inline unsigned int
bswap_32 (unsigned int x)
{
return ((((x) & 0xff000000) >> 24) | (((x) & 0x00ff0000) >> 8) \
| (((x) & 0x0000ff00) << 8) | (((x) & 0x000000ff) << 24));
}
#endif
#ifdef WORDS_BIGENDIAN
static inline unsigned int
host_to_usrp_u32 (unsigned int x)
{
return bswap_32(x);
}
static inline unsigned int
usrp_to_host_u32 (unsigned int x)
{
return bswap_32(x);
}
static inline short int
host_to_usrp_short (short int x)
{
return bswap_16 (x);
}
static inline short int
usrp_to_host_short (short int x)
{
return bswap_16 (x);
}
#else
static inline unsigned int
host_to_usrp_u32 (unsigned int x)
{
return x;
}
static inline unsigned int
usrp_to_host_u32 (unsigned int x)
{
return x;
}
static inline short int
host_to_usrp_short (short int x)
{
return x;
}
static inline short int
usrp_to_host_short (unsigned short int x)
{
return x;
}
#endif
#endif /* INCLUDED_USRP_BYTESEX_H */
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