Hung-Te Lin | 6fe0cab | 2013-01-22 18:57:56 +0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2013 The Chromium OS Authors. All rights reserved. |
| 3 | * |
| 4 | * This program is free software; you can redistribute it and/or |
| 5 | * modify it under the terms of the GNU General Public License as |
| 6 | * published by the Free Software Foundation; either version 2 of |
| 7 | * the License, or (at your option) any later version. |
| 8 | * |
| 9 | * This program is distributed in the hope that it will be useful, |
| 10 | * but without any warranty; without even the implied warranty of |
| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 12 | * GNU General Public License for more details. |
Hung-Te Lin | 6fe0cab | 2013-01-22 18:57:56 +0800 | [diff] [blame] | 13 | */ |
| 14 | |
| 15 | #ifndef _ENDIAN_H_ |
| 16 | #define _ENDIAN_H_ |
| 17 | |
| 18 | #include <arch/byteorder.h> |
Julius Werner | 9ff8f6f | 2015-02-23 14:31:09 -0800 | [diff] [blame] | 19 | #include <stdint.h> |
| 20 | #include <swab.h> |
| 21 | |
| 22 | #if defined(__LITTLE_ENDIAN) |
| 23 | #define cpu_to_le64(x) ((uint64_t)(x)) |
| 24 | #define le64_to_cpu(x) ((uint64_t)(x)) |
| 25 | #define cpu_to_le32(x) ((uint32_t)(x)) |
| 26 | #define le32_to_cpu(x) ((uint32_t)(x)) |
| 27 | #define cpu_to_le16(x) ((uint16_t)(x)) |
| 28 | #define le16_to_cpu(x) ((uint16_t)(x)) |
| 29 | #define cpu_to_be64(x) swab64(x) |
| 30 | #define be64_to_cpu(x) swab64(x) |
| 31 | #define cpu_to_be32(x) swab32(x) |
| 32 | #define be32_to_cpu(x) swab32(x) |
| 33 | #define cpu_to_be16(x) swab16(x) |
| 34 | #define be16_to_cpu(x) swab16(x) |
| 35 | #elif defined(__BIG_ENDIAN) |
| 36 | #define cpu_to_le64(x) swab64(x) |
| 37 | #define le64_to_cpu(x) swab64(x) |
| 38 | #define cpu_to_le32(x) swab32(x) |
| 39 | #define le32_to_cpu(x) swab32(x) |
| 40 | #define cpu_to_le16(x) swab16(x) |
| 41 | #define le16_to_cpu(x) swab16(x) |
| 42 | #define cpu_to_be64(x) ((uint64_t)(x)) |
| 43 | #define be64_to_cpu(x) ((uint64_t)(x)) |
| 44 | #define cpu_to_be32(x) ((uint32_t)(x)) |
| 45 | #define be32_to_cpu(x) ((uint32_t)(x)) |
| 46 | #define cpu_to_be16(x) ((uint16_t)(x)) |
| 47 | #define be16_to_cpu(x) ((uint16_t)(x)) |
| 48 | #else |
| 49 | #error "<arch/byteorder.h> must #define __LITTLE_ENDIAN or __BIG_ENDIAN" |
| 50 | #endif |
| 51 | |
| 52 | #define ntohll(x) be64_to_cpu(x) |
| 53 | #define htonll(x) cpu_to_be64(x) |
| 54 | #define ntohl(x) be32_to_cpu(x) |
| 55 | #define htonl(x) cpu_to_be32(x) |
| 56 | |
| 57 | #define __clrsetbits(endian, bits, addr, clear, set) \ |
| 58 | write##bits(addr, cpu_to_##endian##bits((endian##bits##_to_cpu( \ |
| 59 | read##bits(addr)) & ~((uint##bits##_t)(clear))) | (set))) |
| 60 | |
| 61 | #define clrbits_le64(addr, clear) __clrsetbits(le, 64, addr, clear, 0) |
| 62 | #define clrbits_be64(addr, clear) __clrsetbits(be, 64, addr, clear, 0) |
| 63 | #define clrbits_le32(addr, clear) __clrsetbits(le, 32, addr, clear, 0) |
| 64 | #define clrbits_be32(addr, clear) __clrsetbits(be, 32, addr, clear, 0) |
| 65 | #define clrbits_le16(addr, clear) __clrsetbits(le, 16, addr, clear, 0) |
| 66 | #define clrbits_be16(addr, clear) __clrsetbits(be, 16, addr, clear, 0) |
| 67 | |
| 68 | #define setbits_le64(addr, set) __clrsetbits(le, 64, addr, 0, set) |
| 69 | #define setbits_be64(addr, set) __clrsetbits(be, 64, addr, 0, set) |
| 70 | #define setbits_le32(addr, set) __clrsetbits(le, 32, addr, 0, set) |
| 71 | #define setbits_be32(addr, set) __clrsetbits(be, 32, addr, 0, set) |
| 72 | #define setbits_le16(addr, set) __clrsetbits(le, 16, addr, 0, set) |
| 73 | #define setbits_be16(addr, set) __clrsetbits(be, 16, addr, 0, set) |
| 74 | |
| 75 | #define clrsetbits_le64(addr, clear, set) __clrsetbits(le, 64, addr, clear, set) |
| 76 | #define clrsetbits_be64(addr, clear, set) __clrsetbits(be, 64, addr, clear, set) |
| 77 | #define clrsetbits_le32(addr, clear, set) __clrsetbits(le, 32, addr, clear, set) |
| 78 | #define clrsetbits_be32(addr, clear, set) __clrsetbits(be, 32, addr, clear, set) |
| 79 | #define clrsetbits_le16(addr, clear, set) __clrsetbits(le, 16, addr, clear, set) |
| 80 | #define clrsetbits_be16(addr, clear, set) __clrsetbits(be, 16, addr, clear, set) |
| 81 | |
| 82 | #define clrsetbits_8(addr, clear, set) \ |
| 83 | write8(addr, (read8(addr) & ~(clear)) | (set)) |
| 84 | #define clrbits_8(addr, clear) clrsetbits_8(addr, clear, 0) |
| 85 | #define setbits_8(addr, set) setbits_8(addr, 0, set) |
Hung-Te Lin | 6fe0cab | 2013-01-22 18:57:56 +0800 | [diff] [blame] | 86 | |
Aaron Durbin | 94a7499 | 2015-09-10 12:08:34 -0500 | [diff] [blame] | 87 | #ifndef __ROMCC__ |
| 88 | /* |
| 89 | * Portable (API) endian support that can be used in code that is shared |
| 90 | * with userspace (man 3 endian) tools. |
| 91 | */ |
| 92 | static inline uint16_t htobe16(uint16_t host_16bits) |
| 93 | { |
| 94 | return cpu_to_be16(host_16bits); |
| 95 | } |
| 96 | |
| 97 | static inline uint16_t htole16(uint16_t host_16bits) |
| 98 | { |
| 99 | return cpu_to_le16(host_16bits); |
| 100 | } |
| 101 | |
| 102 | static inline uint16_t be16toh(uint16_t big_endian_16bits) |
| 103 | { |
| 104 | return be16_to_cpu(big_endian_16bits); |
| 105 | } |
| 106 | |
| 107 | static inline uint16_t le16toh(uint16_t little_endian_16bits) |
| 108 | { |
| 109 | return le16_to_cpu(little_endian_16bits); |
| 110 | } |
| 111 | |
| 112 | static inline uint32_t htobe32(uint32_t host_32bits) |
| 113 | { |
| 114 | return cpu_to_be32(host_32bits); |
| 115 | } |
| 116 | |
| 117 | static inline uint32_t htole32(uint32_t host_32bits) |
| 118 | { |
| 119 | return cpu_to_le32(host_32bits); |
| 120 | } |
| 121 | |
| 122 | static inline uint32_t be32toh(uint32_t big_endian_32bits) |
| 123 | { |
| 124 | return be32_to_cpu(big_endian_32bits); |
| 125 | } |
| 126 | |
| 127 | static inline uint32_t le32toh(uint32_t little_endian_32bits) |
| 128 | { |
| 129 | return le32_to_cpu(little_endian_32bits); |
| 130 | } |
| 131 | |
| 132 | static inline uint64_t htobe64(uint64_t host_64bits) |
| 133 | { |
| 134 | return cpu_to_be64(host_64bits); |
| 135 | } |
| 136 | |
| 137 | static inline uint64_t htole64(uint64_t host_64bits) |
| 138 | { |
| 139 | return cpu_to_le64(host_64bits); |
| 140 | } |
| 141 | |
| 142 | static inline uint64_t be64toh(uint64_t big_endian_64bits) |
| 143 | { |
| 144 | return be64_to_cpu(big_endian_64bits); |
| 145 | } |
| 146 | |
| 147 | static inline uint64_t le64toh(uint64_t little_endian_64bits) |
| 148 | { |
Aaron Durbin | 113d821 | 2015-09-10 22:27:55 -0500 | [diff] [blame] | 149 | return le64_to_cpu(little_endian_64bits); |
Aaron Durbin | 94a7499 | 2015-09-10 12:08:34 -0500 | [diff] [blame] | 150 | } |
| 151 | #endif |
| 152 | |
Hung-Te Lin | 6fe0cab | 2013-01-22 18:57:56 +0800 | [diff] [blame] | 153 | #endif |