1 /*
2  * endian.h - Defines for endianness handling in NTFS Linux kernel driver.
3  *	      Part of the Linux-NTFS project.
4  *
5  * Copyright (c) 2001-2004 Anton Altaparmakov
6  *
7  * This program/include file is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU General Public License as published
9  * by the Free Software Foundation; either version 2 of the License, or
10  * (at your option) any later version.
11  *
12  * This program/include file is distributed in the hope that it will be
13  * useful, but WITHOUT ANY WARRANTY; without even the implied warranty
14  * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15  * GNU General Public License for more details.
16  *
17  * You should have received a copy of the GNU General Public License
18  * along with this program (in the main directory of the Linux-NTFS
19  * distribution in the file COPYING); if not, write to the Free Software
20  * Foundation,Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
21  */
22 
23 #ifndef _LINUX_NTFS_ENDIAN_H
24 #define _LINUX_NTFS_ENDIAN_H
25 
26 #include <asm/byteorder.h>
27 #include "types.h"
28 
29 /*
30  * Signed endianness conversion functions.
31  */
32 
sle16_to_cpu(sle16 x)33 static inline s16 sle16_to_cpu(sle16 x)
34 {
35 	return le16_to_cpu((__force le16)x);
36 }
37 
sle32_to_cpu(sle32 x)38 static inline s32 sle32_to_cpu(sle32 x)
39 {
40 	return le32_to_cpu((__force le32)x);
41 }
42 
sle64_to_cpu(sle64 x)43 static inline s64 sle64_to_cpu(sle64 x)
44 {
45 	return le64_to_cpu((__force le64)x);
46 }
47 
sle16_to_cpup(sle16 * x)48 static inline s16 sle16_to_cpup(sle16 *x)
49 {
50 	return le16_to_cpu(*(__force le16*)x);
51 }
52 
sle32_to_cpup(sle32 * x)53 static inline s32 sle32_to_cpup(sle32 *x)
54 {
55 	return le32_to_cpu(*(__force le32*)x);
56 }
57 
sle64_to_cpup(sle64 * x)58 static inline s64 sle64_to_cpup(sle64 *x)
59 {
60 	return le64_to_cpu(*(__force le64*)x);
61 }
62 
cpu_to_sle16(s16 x)63 static inline sle16 cpu_to_sle16(s16 x)
64 {
65 	return (__force sle16)cpu_to_le16(x);
66 }
67 
cpu_to_sle32(s32 x)68 static inline sle32 cpu_to_sle32(s32 x)
69 {
70 	return (__force sle32)cpu_to_le32(x);
71 }
72 
cpu_to_sle64(s64 x)73 static inline sle64 cpu_to_sle64(s64 x)
74 {
75 	return (__force sle64)cpu_to_le64(x);
76 }
77 
cpu_to_sle16p(s16 * x)78 static inline sle16 cpu_to_sle16p(s16 *x)
79 {
80 	return (__force sle16)cpu_to_le16(*x);
81 }
82 
cpu_to_sle32p(s32 * x)83 static inline sle32 cpu_to_sle32p(s32 *x)
84 {
85 	return (__force sle32)cpu_to_le32(*x);
86 }
87 
cpu_to_sle64p(s64 * x)88 static inline sle64 cpu_to_sle64p(s64 *x)
89 {
90 	return (__force sle64)cpu_to_le64(*x);
91 }
92 
93 #endif /* _LINUX_NTFS_ENDIAN_H */
94