diff options
Diffstat (limited to 'exfat/libexfat/byteorder.h')
-rw-r--r-- | exfat/libexfat/byteorder.h | 85 |
1 files changed, 64 insertions, 21 deletions
diff --git a/exfat/libexfat/byteorder.h b/exfat/libexfat/byteorder.h index dd039f283..10746e1ef 100644 --- a/exfat/libexfat/byteorder.h +++ b/exfat/libexfat/byteorder.h @@ -3,7 +3,7 @@ Endianness stuff. exFAT uses little-endian byte order. Free exFAT implementation. - Copyright (C) 2010-2014 Andrew Nayenko + Copyright (C) 2010-2013 Andrew Nayenko 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 @@ -23,15 +23,68 @@ #ifndef BYTEORDER_H_INCLUDED #define BYTEORDER_H_INCLUDED +#define __GLIBC__ #include <stdint.h> -#include "platform.h" + +#if defined(__GLIBC__) + +#include <endian.h> +#include <byteswap.h> + +#elif defined(__APPLE__) + +#include <machine/endian.h> +#include <libkern/OSByteOrder.h> +#define bswap_16(x) OSSwapInt16(x) +#define bswap_32(x) OSSwapInt32(x) +#define bswap_64(x) OSSwapInt64(x) +#define __BYTE_ORDER BYTE_ORDER +#define __LITTLE_ENDIAN LITTLE_ENDIAN +#define __BIG_ENDIAN BIG_ENDIAN + +#elif defined(__FreeBSD__) || defined(__DragonFlyBSD__) || defined(__NetBSD__) + +#include <sys/endian.h> +#define bswap_16(x) bswap16(x) +#define bswap_32(x) bswap32(x) +#define bswap_64(x) bswap64(x) +#define __BYTE_ORDER _BYTE_ORDER +#define __LITTLE_ENDIAN _LITTLE_ENDIAN +#define __BIG_ENDIAN _BIG_ENDIAN + +#elif defined(__OpenBSD__) + +#include <machine/endian.h> +#define bswap_16(x) swap16(x) +#define bswap_32(x) swap32(x) +#define bswap_64(x) swap64(x) +#define __BYTE_ORDER _BYTE_ORDER +#define __LITTLE_ENDIAN _LITTLE_ENDIAN +#define __BIG_ENDIAN _BIG_ENDIAN + +#elif defined(__sun) + +#include <sys/byteorder.h> +#define bswap_16(x) BSWAP_16(x) +#define bswap_32(x) BSWAP_32(x) +#define bswap_64(x) BSWAP_64(x) +#define __LITTLE_ENDIAN 1234 +#define __BIG_ENDIAN 4321 +#ifdef _LITTLE_ENDIAN +#define __BYTE_ORDER __LITTLE_ENDIAN +#else +#define __BYTE_ORDER __BIG_ENDIAN +#endif + +#else +#error No byte order macros available for your platform +#endif typedef struct { uint16_t __u16; } le16_t; typedef struct { uint32_t __u32; } le32_t; typedef struct { uint64_t __u64; } le64_t; -#if EXFAT_BYTE_ORDER == EXFAT_LITTLE_ENDIAN - +#if __BYTE_ORDER == __LITTLE_ENDIAN static inline uint16_t le16_to_cpu(le16_t v) { return v.__u16; } static inline uint32_t le32_to_cpu(le32_t v) { return v.__u32; } static inline uint64_t le64_to_cpu(le64_t v) { return v.__u64; } @@ -39,27 +92,17 @@ static inline uint64_t le64_to_cpu(le64_t v) { return v.__u64; } static inline le16_t cpu_to_le16(uint16_t v) { le16_t t = {v}; return t; } static inline le32_t cpu_to_le32(uint32_t v) { le32_t t = {v}; return t; } static inline le64_t cpu_to_le64(uint64_t v) { le64_t t = {v}; return t; } - -typedef size_t bitmap_t; - -#elif EXFAT_BYTE_ORDER == EXFAT_BIG_ENDIAN - -static inline uint16_t le16_to_cpu(le16_t v) - { return exfat_bswap16(v.__u16); } -static inline uint32_t le32_to_cpu(le32_t v) - { return exfat_bswap32(v.__u32); } -static inline uint64_t le64_to_cpu(le64_t v) - { return exfat_bswap64(v.__u64); } +#elif __BYTE_ORDER == __BIG_ENDIAN +static inline uint16_t le16_to_cpu(le16_t v) { return bswap_16(v.__u16); } +static inline uint32_t le32_to_cpu(le32_t v) { return bswap_32(v.__u32); } +static inline uint64_t le64_to_cpu(le64_t v) { return bswap_64(v.__u64); } static inline le16_t cpu_to_le16(uint16_t v) - { le16_t t = {exfat_bswap16(v)}; return t; } + { le16_t t = {bswap_16(v)}; return t; } static inline le32_t cpu_to_le32(uint32_t v) - { le32_t t = {exfat_bswap32(v)}; return t; } + { le32_t t = {bswap_32(v)}; return t; } static inline le64_t cpu_to_le64(uint64_t v) - { le64_t t = {exfat_bswap64(v)}; return t; } - -typedef unsigned char bitmap_t; - + { le64_t t = {bswap_64(v)}; return t; } #else #error Wow! You have a PDP machine?! #endif |