1 /** @file 2 Byte Swap routines for endian-nes conversions. 3 4 Copyright (c) 2010, Intel Corporation. All rights reserved.<BR> 5 This program and the accompanying materials are licensed and made available under 6 the terms and conditions of the BSD License that accompanies this distribution. 7 The full text of the license may be found at 8 http://opensource.org/licenses/bsd-license.php. 9 10 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, 11 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. 12 **/ 13 #include <Library/BaseLib.h> 14 #include <LibConfig.h> 15 16 #include <sys/bswap.h> 17 18 // Undefine macro versions of the functions to be defined below. 19 #undef bswap16 20 #undef bswap32 21 #undef bswap64 22 23 /** 24 Switches the endianness of a 16-bit integer. 25 26 This function swaps the bytes in a 16-bit unsigned value to switch the value 27 from little endian to big endian or vice versa. The byte swapped value is 28 returned. 29 30 @param Value A 16-bit unsigned value. 31 32 @return The byte swapped Value. 33 34 **/ 35 uint16_t bswap16(uint16_t Value) 36 { 37 return SwapBytes16(Value); 38 } 39 40 /** 41 Switches the endianness of a 32-bit integer. 42 43 This function swaps the bytes in a 32-bit unsigned value to switch the value 44 from little endian to big endian or vice versa. The byte swapped value is 45 returned. 46 47 @param Value A 32-bit unsigned value. 48 49 @return The byte swapped Value. 50 51 **/ 52 uint32_t bswap32(uint32_t Value) 53 { 54 return SwapBytes32(Value); 55 } 56 57 /** 58 Switches the endianness of a 64-bit integer. 59 60 This function swaps the bytes in a 64-bit unsigned value to switch the value 61 from little endian to big endian or vice versa. The byte swapped value is 62 returned. 63 64 @param Value A 64-bit unsigned value. 65 66 @return The byte swapped Value. 67 68 **/ 69 uint64_t bswap64(uint64_t Value) 70 { 71 return SwapBytes64(Value); 72 } 73
