| /* |
| * ntfsendian.h |
| * |
| * Copyright (C) 1998, 1999 Martin von Löwis |
| * Copyright (C) 1998 Joseph Malicki |
| * Copyright (C) 1999 Werner Seiler |
| * Copyright (C) 2001 Anton Altaparmakov (AIA) |
| */ |
| #include <asm/byteorder.h> |
| |
| #define CPU_TO_LE16(a) __cpu_to_le16(a) |
| #define CPU_TO_LE32(a) __cpu_to_le32(a) |
| #define CPU_TO_LE64(a) __cpu_to_le64(a) |
| |
| #define LE16_TO_CPU(a) __cpu_to_le16(a) |
| #define LE32_TO_CPU(a) __cpu_to_le32(a) |
| #define LE64_TO_CPU(a) __cpu_to_le64(a) |
| |
| #define NTFS_GETU8(p) (*(ntfs_u8*)(p)) |
| #define NTFS_GETU16(p) ((ntfs_u16)LE16_TO_CPU(*(ntfs_u16*)(p))) |
| #define NTFS_GETU24(p) ((ntfs_u32)NTFS_GETU16(p) | \ |
| ((ntfs_u32)NTFS_GETU8(((char*)(p)) + 2) << 16)) |
| #define NTFS_GETU32(p) ((ntfs_u32)LE32_TO_CPU(*(ntfs_u32*)(p))) |
| #define NTFS_GETU40(p) ((ntfs_u64)NTFS_GETU32(p) | \ |
| (((ntfs_u64)NTFS_GETU8(((char*)(p)) + 4)) << 32)) |
| #define NTFS_GETU48(p) ((ntfs_u64)NTFS_GETU32(p) | \ |
| (((ntfs_u64)NTFS_GETU16(((char*)(p)) + 4)) << 32)) |
| #define NTFS_GETU56(p) ((ntfs_u64)NTFS_GETU32(p) | \ |
| (((ntfs_u64)NTFS_GETU24(((char*)(p)) + 4)) << 32)) |
| #define NTFS_GETU64(p) ((ntfs_u64)LE64_TO_CPU(*(ntfs_u64*)(p))) |
| |
| /* Macros writing unsigned integers */ |
| #define NTFS_PUTU8(p,v) ((*(ntfs_u8*)(p)) = (v)) |
| #define NTFS_PUTU16(p,v) ((*(ntfs_u16*)(p)) = CPU_TO_LE16(v)) |
| #define NTFS_PUTU24(p,v) NTFS_PUTU16(p, (v) & 0xFFFF);\ |
| NTFS_PUTU8(((char*)(p)) + 2, (v) >> 16) |
| #define NTFS_PUTU32(p,v) ((*(ntfs_u32*)(p)) = CPU_TO_LE32(v)) |
| #define NTFS_PUTU64(p,v) ((*(ntfs_u64*)(p)) = CPU_TO_LE64(v)) |
| |
| /* Macros reading signed integers */ |
| #define NTFS_GETS8(p) ((*(ntfs_s8*)(p))) |
| #define NTFS_GETS16(p) ((ntfs_s16)LE16_TO_CPU(*(short*)(p))) |
| #define NTFS_GETS24(p) (NTFS_GETU24(p) < 0x800000 ? \ |
| (int)NTFS_GETU24(p) : \ |
| (int)(NTFS_GETU24(p) - 0x1000000)) |
| #define NTFS_GETS32(p) ((ntfs_s32)LE32_TO_CPU(*(int*)(p))) |
| #define NTFS_GETS40(p) (((ntfs_s64)NTFS_GETU32(p)) | \ |
| (((ntfs_s64)NTFS_GETS8(((char*)(p)) + 4)) << 32)) |
| #define NTFS_GETS48(p) (((ntfs_s64)NTFS_GETU32(p)) | \ |
| (((ntfs_s64)NTFS_GETS16(((char*)(p)) + 4)) << 32)) |
| #define NTFS_GETS56(p) (((ntfs_s64)NTFS_GETU32(p)) | \ |
| (((ntfs_s64)NTFS_GETS24(((char*)(p)) + 4)) << 32)) |
| #define NTFS_GETS64(p) ((ntfs_s64)NTFS_GETU64(p)) |
| |
| #define NTFS_PUTS8(p,v) NTFS_PUTU8(p,v) |
| #define NTFS_PUTS16(p,v) NTFS_PUTU16(p,v) |
| #define NTFS_PUTS24(p,v) NTFS_PUTU24(p,v) |
| #define NTFS_PUTS32(p,v) NTFS_PUTU32(p,v) |
| #define NTFS_PUTS64(p,v) NTFS_PUTU64(p,v) |
| |