root / usrp / host / lib / legacy / usrp_bytesex.h @ 0bf2128a
History | View | Annotate | Download (2.2 kB)
| 1 | /* -*- c++ -*- */
|
|---|---|
| 2 | /*
|
| 3 | * Copyright 2004 Free Software Foundation, Inc. |
| 4 | * |
| 5 | * This file is part of GNU Radio |
| 6 | * |
| 7 | * GNU Radio is free software; you can redistribute it and/or modify |
| 8 | * it under the terms of the GNU General Public License as published by |
| 9 | * the Free Software Foundation; either version 2, or (at your option) |
| 10 | * any later version. |
| 11 | * |
| 12 | * GNU Radio is distributed in the hope that it will be useful, |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | * GNU General Public License for more details. |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License |
| 18 | * along with GNU Radio; see the file COPYING. If not, write to |
| 19 | * the Free Software Foundation, Inc., 51 Franklin Street, |
| 20 | * Boston, MA 02110-1301, USA. |
| 21 | */ |
| 22 | #ifndef INCLUDED_USRP_BYTESEX_H
|
| 23 | #define INCLUDED_USRP_BYTESEX_H
|
| 24 | |
| 25 | /*!
|
| 26 | * \brief routines for convertering between host and usrp byte order |
| 27 | * |
| 28 | * Prior to including this file, the user must include "config.h" |
| 29 | * which will or won't define WORDS_BIGENDIAN based on the |
| 30 | * result of the AC_C_BIGENDIAN autoconf test. |
| 31 | */ |
| 32 | |
| 33 | #ifdef HAVE_BYTESWAP_H
|
| 34 | #include <byteswap.h> |
| 35 | #else
|
| 36 | static inline unsigned short int |
| 37 | bswap_16 (unsigned short int x) |
| 38 | {
|
| 39 | return ((((x) >> 8) & 0xff) | (((x) & 0xff) << 8)); |
| 40 | } |
| 41 | |
| 42 | static inline unsigned int |
| 43 | bswap32 (unsigned int x) |
| 44 | {
|
| 45 | return ((((x) & 0xff000000) >> 24) | (((x) & 0x00ff0000) >> 8) \ |
| 46 | | (((x) & 0x0000ff00) << 8) | (((x) & 0x000000ff) << 24)); |
| 47 | } |
| 48 | #endif
|
| 49 | |
| 50 | |
| 51 | #ifdef WORDS_BIGENDIAN
|
| 52 | |
| 53 | static inline unsigned int |
| 54 | host_to_usrp_u32 (unsigned int x) |
| 55 | {
|
| 56 | return bswap_32(x);
|
| 57 | } |
| 58 | |
| 59 | static inline unsigned int |
| 60 | usrp_to_host_u32 (unsigned int x) |
| 61 | {
|
| 62 | return bswap_32(x);
|
| 63 | } |
| 64 | |
| 65 | static inline short int |
| 66 | host_to_usrp_short (short int x) |
| 67 | {
|
| 68 | return bswap_16 (x);
|
| 69 | } |
| 70 | |
| 71 | static inline short int |
| 72 | usrp_to_host_short (short int x) |
| 73 | {
|
| 74 | return bswap_16 (x);
|
| 75 | } |
| 76 | |
| 77 | #else
|
| 78 | |
| 79 | static inline unsigned int |
| 80 | host_to_usrp_u32 (unsigned int x) |
| 81 | {
|
| 82 | return x;
|
| 83 | } |
| 84 | |
| 85 | static inline unsigned int |
| 86 | usrp_to_host_u32 (unsigned int x) |
| 87 | {
|
| 88 | return x;
|
| 89 | } |
| 90 | |
| 91 | static inline short int |
| 92 | host_to_usrp_short (short int x) |
| 93 | {
|
| 94 | return x;
|
| 95 | } |
| 96 | |
| 97 | static inline short int |
| 98 | usrp_to_host_short (unsigned short int x) |
| 99 | {
|
| 100 | return x;
|
| 101 | } |
| 102 | |
| 103 | #endif
|
| 104 | |
| 105 | #endif /* INCLUDED_USRP_BYTESEX_H */ |