Tadeusz Struk | 8203a37 | 2017-06-26 15:15:18 -0700 | [diff] [blame^] | 1 | /***********************************************************************; |
| 2 | * Copyright (c) 2015 - 2017, Intel Corporation |
| 3 | * |
| 4 | * All rights reserved. |
| 5 | * |
| 6 | * Redistribution and use in source and binary forms, with or without |
| 7 | * modification, are permitted provided that the following conditions are met: |
| 8 | * |
| 9 | * 1. Redistributions of source code must retain the above copyright notice, |
| 10 | * this list of conditions and the following disclaimer. |
| 11 | * |
| 12 | * 2. Redistributions in binary form must reproduce the above copyright notice, |
| 13 | * this list of conditions and the following disclaimer in the documentation |
| 14 | * and/or other materials provided with the distribution. |
| 15 | * |
| 16 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| 17 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 18 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 19 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE |
| 20 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| 21 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| 22 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| 23 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| 24 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| 25 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF |
| 26 | * THE POSSIBILITY OF SUCH DAMAGE. |
| 27 | ***********************************************************************/ |
| 28 | |
| 29 | #ifndef TSS2_ENDIAN_H |
| 30 | #define TSS2_ENDIAN_H |
| 31 | |
| 32 | #if defined(__linux__) || defined(__unix__) |
| 33 | #include <endian.h> |
| 34 | |
| 35 | #define HOST_TO_BE_16(value) htobe16(value) |
| 36 | #define HOST_TO_BE_32(value) htobe32(value) |
| 37 | #define HOST_TO_BE_64(value) htobe64(value) |
| 38 | #define BE_TO_HOST_16(value) be16toh(value) |
| 39 | #define BE_TO_HOST_32(value) be32toh(value) |
| 40 | #define BE_TO_HOST_64(value) be64toh(value) |
| 41 | |
| 42 | #else /* linux || unix */ |
| 43 | |
| 44 | #if defined(WORDS_BIGENDIAN) |
| 45 | |
| 46 | #define HOST_TO_BE_16(value) (value) |
| 47 | #define HOST_TO_BE_32(value) (value) |
| 48 | #define HOST_TO_BE_64(value) (value) |
| 49 | #define BE_TO_HOST_16(value) (value) |
| 50 | #define BE_TO_HOST_32(value) (value) |
| 51 | #define BE_TO_HOST_64(value) (value) |
| 52 | |
| 53 | #else |
| 54 | |
| 55 | static inline uint16_t endian_conv_16(UINT16 value) |
| 56 | { |
| 57 | return ((value & (0xff)) << 8) | \ |
| 58 | ((value & (0xff << 8)) >> 8); |
| 59 | } |
| 60 | |
| 61 | static inline uint32_t endian_conv_32(uint32_t value) |
| 62 | { |
| 63 | return ((value & (0xff)) << 24) | \ |
| 64 | ((value & (0xff << 8)) << 8) | \ |
| 65 | ((value & (0xff << 16)) >> 8) | \ |
| 66 | ((value & (0xff << 24)) >> 24); |
| 67 | } |
| 68 | |
| 69 | static inline uint64_t endian_conv_64(uint64_t value) |
| 70 | { |
| 71 | return ((value & (0xffULL)) << 56) | \ |
| 72 | ((value & (0xffULL << 8)) << 40) | \ |
| 73 | ((value & (0xffULL << 16)) << 24) | \ |
| 74 | ((value & (0xffULL << 24)) << 8) | \ |
| 75 | ((value & (0xffULL << 32)) >> 8) | \ |
| 76 | ((value & (0xffULL << 40)) >> 24) | \ |
| 77 | ((value & (0xffULL << 48)) >> 40) | \ |
| 78 | ((value & (0xffULL << 56)) >> 56); |
| 79 | } |
| 80 | |
| 81 | #define HOST_TO_BE_16(value) endian_conv_16(value) |
| 82 | #define HOST_TO_BE_32(value) endian_conv_32(value) |
| 83 | #define HOST_TO_BE_64(value) endian_conv_64(value) |
| 84 | #define BE_TO_HOST_16(value) endian_conv_16(value) |
| 85 | #define BE_TO_HOST_32(value) endian_conv_32(value) |
| 86 | #define BE_TO_HOST_64(value) endian_conv_64(value) |
| 87 | |
| 88 | #endif /* WORDS_BIGENDIAN */ |
| 89 | #endif /* linux || unix */ |
| 90 | #endif /* TSS2_ENDIAN_H */ |