| /* |
| * Copyright (C) 2013 The Chromium OS Authors. All rights reserved. |
| * |
| * This program 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 of |
| * the License, or (at your option) any later version. |
| * |
| * This program 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. |
| */ |
| |
| #ifndef _ENDIAN_H_ |
| #define _ENDIAN_H_ |
| |
| #include <arch/byteorder.h> |
| #include <stdint.h> |
| #include <swab.h> |
| |
| #if defined(__LITTLE_ENDIAN) |
| #define cpu_to_le64(x) ((uint64_t)(x)) |
| #define le64_to_cpu(x) ((uint64_t)(x)) |
| #define cpu_to_le32(x) ((uint32_t)(x)) |
| #define le32_to_cpu(x) ((uint32_t)(x)) |
| #define cpu_to_le16(x) ((uint16_t)(x)) |
| #define le16_to_cpu(x) ((uint16_t)(x)) |
| #define cpu_to_be64(x) swab64(x) |
| #define be64_to_cpu(x) swab64(x) |
| #define cpu_to_be32(x) swab32(x) |
| #define be32_to_cpu(x) swab32(x) |
| #define cpu_to_be16(x) swab16(x) |
| #define be16_to_cpu(x) swab16(x) |
| #elif defined(__BIG_ENDIAN) |
| #define cpu_to_le64(x) swab64(x) |
| #define le64_to_cpu(x) swab64(x) |
| #define cpu_to_le32(x) swab32(x) |
| #define le32_to_cpu(x) swab32(x) |
| #define cpu_to_le16(x) swab16(x) |
| #define le16_to_cpu(x) swab16(x) |
| #define cpu_to_be64(x) ((uint64_t)(x)) |
| #define be64_to_cpu(x) ((uint64_t)(x)) |
| #define cpu_to_be32(x) ((uint32_t)(x)) |
| #define be32_to_cpu(x) ((uint32_t)(x)) |
| #define cpu_to_be16(x) ((uint16_t)(x)) |
| #define be16_to_cpu(x) ((uint16_t)(x)) |
| #else |
| #error "<arch/byteorder.h> must #define __LITTLE_ENDIAN or __BIG_ENDIAN" |
| #endif |
| |
| #define ntohll(x) be64_to_cpu(x) |
| #define htonll(x) cpu_to_be64(x) |
| #define ntohl(x) be32_to_cpu(x) |
| #define htonl(x) cpu_to_be32(x) |
| |
| #define __clrsetbits(endian, bits, addr, clear, set) \ |
| write##bits(addr, cpu_to_##endian##bits((endian##bits##_to_cpu( \ |
| read##bits(addr)) & ~((uint##bits##_t)(clear))) | (set))) |
| |
| #define clrbits_le64(addr, clear) __clrsetbits(le, 64, addr, clear, 0) |
| #define clrbits_be64(addr, clear) __clrsetbits(be, 64, addr, clear, 0) |
| #define clrbits_le32(addr, clear) __clrsetbits(le, 32, addr, clear, 0) |
| #define clrbits_be32(addr, clear) __clrsetbits(be, 32, addr, clear, 0) |
| #define clrbits_le16(addr, clear) __clrsetbits(le, 16, addr, clear, 0) |
| #define clrbits_be16(addr, clear) __clrsetbits(be, 16, addr, clear, 0) |
| |
| #define setbits_le64(addr, set) __clrsetbits(le, 64, addr, 0, set) |
| #define setbits_be64(addr, set) __clrsetbits(be, 64, addr, 0, set) |
| #define setbits_le32(addr, set) __clrsetbits(le, 32, addr, 0, set) |
| #define setbits_be32(addr, set) __clrsetbits(be, 32, addr, 0, set) |
| #define setbits_le16(addr, set) __clrsetbits(le, 16, addr, 0, set) |
| #define setbits_be16(addr, set) __clrsetbits(be, 16, addr, 0, set) |
| |
| #define clrsetbits_le64(addr, clear, set) __clrsetbits(le, 64, addr, clear, set) |
| #define clrsetbits_be64(addr, clear, set) __clrsetbits(be, 64, addr, clear, set) |
| #define clrsetbits_le32(addr, clear, set) __clrsetbits(le, 32, addr, clear, set) |
| #define clrsetbits_be32(addr, clear, set) __clrsetbits(be, 32, addr, clear, set) |
| #define clrsetbits_le16(addr, clear, set) __clrsetbits(le, 16, addr, clear, set) |
| #define clrsetbits_be16(addr, clear, set) __clrsetbits(be, 16, addr, clear, set) |
| |
| #define clrsetbits_8(addr, clear, set) \ |
| write8(addr, (read8(addr) & ~(clear)) | (set)) |
| #define clrbits_8(addr, clear) clrsetbits_8(addr, clear, 0) |
| #define setbits_8(addr, set) setbits_8(addr, 0, set) |
| |
| #ifndef __ROMCC__ |
| /* |
| * Portable (API) endian support that can be used in code that is shared |
| * with userspace (man 3 endian) tools. |
| */ |
| static inline uint16_t htobe16(uint16_t host_16bits) |
| { |
| return cpu_to_be16(host_16bits); |
| } |
| |
| static inline uint16_t htole16(uint16_t host_16bits) |
| { |
| return cpu_to_le16(host_16bits); |
| } |
| |
| static inline uint16_t be16toh(uint16_t big_endian_16bits) |
| { |
| return be16_to_cpu(big_endian_16bits); |
| } |
| |
| static inline uint16_t le16toh(uint16_t little_endian_16bits) |
| { |
| return le16_to_cpu(little_endian_16bits); |
| } |
| |
| static inline uint32_t htobe32(uint32_t host_32bits) |
| { |
| return cpu_to_be32(host_32bits); |
| } |
| |
| static inline uint32_t htole32(uint32_t host_32bits) |
| { |
| return cpu_to_le32(host_32bits); |
| } |
| |
| static inline uint32_t be32toh(uint32_t big_endian_32bits) |
| { |
| return be32_to_cpu(big_endian_32bits); |
| } |
| |
| static inline uint32_t le32toh(uint32_t little_endian_32bits) |
| { |
| return le32_to_cpu(little_endian_32bits); |
| } |
| |
| static inline uint64_t htobe64(uint64_t host_64bits) |
| { |
| return cpu_to_be64(host_64bits); |
| } |
| |
| static inline uint64_t htole64(uint64_t host_64bits) |
| { |
| return cpu_to_le64(host_64bits); |
| } |
| |
| static inline uint64_t be64toh(uint64_t big_endian_64bits) |
| { |
| return be64_to_cpu(big_endian_64bits); |
| } |
| |
| static inline uint64_t le64toh(uint64_t little_endian_64bits) |
| { |
| return le64_to_cpu(little_endian_64bits); |
| } |
| #endif |
| |
| #endif |