1 /******************************************************************************
2  *
3  * Copyright(c) 2007 - 2010 Realtek Corporation. All rights reserved.
4  *
5  * This program is free software; you can redistribute it and/or modify it
6  * under the terms of version 2 of the GNU General Public License as
7  * published by the Free Software Foundation.
8  *
9  * This program is distributed in the hope that it will be useful, but WITHOUT
10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11  * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
12  * more details.
13  *
14  * You should have received a copy of the GNU General Public License along with
15  * this program; if not, write to the Free Software Foundation, Inc.,
16  * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
17  *
18  * Modifications for inclusion into the Linux staging tree are
19  * Copyright(c) 2010 Larry Finger. All rights reserved.
20  *
21  * Contact information:
22  * WLAN FAE <wlanfae@realtek.com>
23  * Larry Finger <Larry.Finger@lwfinger.net>
24  *
25  ******************************************************************************/
26 #ifndef _LINUX_BYTEORDER_SWAB_H
27 #define _LINUX_BYTEORDER_SWAB_H
28 
29 #ifndef __u16
30  #define __u16 unsigned short
31 #endif
32 
33 #ifndef __u32
34  #define __u32 unsigned int
35 #endif
36 
37 #ifndef __u8
38  #define __u8 unsigned char
39 #endif
40 
41 #ifndef __u64
42  #define __u64 unsigned long long
43 #endif
44 
45 
___swab16(__u16 x)46 static inline __u16  ___swab16(__u16 x)
47 {
48 	__u16 __x = x;
49 	return (__u16)(
50 		(((__u16)(__x) & (__u16)0x00ffU) << 8) |
51 		(((__u16)(__x) & (__u16)0xff00U) >> 8));
52 
53 }
54 
___swab32(__u32 x)55 static inline __u32  ___swab32(__u32 x)
56 {
57 	__u32 __x = (x);
58 	return (__u32)(
59 		(((__u32)(__x) & (__u32)0x000000ffUL) << 24) |
60 		(((__u32)(__x) & (__u32)0x0000ff00UL) <<  8) |
61 		(((__u32)(__x) & (__u32)0x00ff0000UL) >>  8) |
62 		(((__u32)(__x) & (__u32)0xff000000UL) >> 24));
63 }
64 
___swab64(__u64 x)65 static inline __u64  ___swab64(__u64 x)
66 {
67 	__u64 __x = (x);
68 
69 	return (__u64)( \
70 		(__u64)(((__u64)(__x) & (__u64)0x00000000000000ffULL) << 56) | \
71 		(__u64)(((__u64)(__x) & (__u64)0x000000000000ff00ULL) << 40) | \
72 		(__u64)(((__u64)(__x) & (__u64)0x0000000000ff0000ULL) << 24) | \
73 		(__u64)(((__u64)(__x) & (__u64)0x00000000ff000000ULL) <<  8) | \
74 		(__u64)(((__u64)(__x) & (__u64)0x000000ff00000000ULL) >>  8) | \
75 		(__u64)(((__u64)(__x) & (__u64)0x0000ff0000000000ULL) >> 24) | \
76 		(__u64)(((__u64)(__x) & (__u64)0x00ff000000000000ULL) >> 40) | \
77 		(__u64)(((__u64)(__x) & (__u64)0xff00000000000000ULL) >> 56));
78 }
79 
80 #ifndef __arch__swab16
__arch__swab16(__u16 x)81 static inline __u16 __arch__swab16(__u16 x)
82 {
83 	return ___swab16(x);
84 }
85 
86 #endif
87 
88 #ifndef __arch__swab32
__arch__swab32(__u32 x)89 static inline __u32 __arch__swab32(__u32 x)
90 {
91 	__u32 __tmp = (x) ;
92 	return ___swab32(__tmp);
93 }
94 #endif
95 
96 #ifndef __arch__swab64
97 
__arch__swab64(__u64 x)98 static inline __u64 __arch__swab64(__u64 x)
99 {
100 	__u64 __tmp = (x) ;
101 	return ___swab64(__tmp);
102 }
103 
104 
105 #endif
106 
107 #define __swab16(x) __fswab16(x)
108 #define __swab32(x) __fswab32(x)
109 #define __swab64(x) __fswab64(x)
110 
__fswab16(__u16 x)111 static inline const __u16 __fswab16(__u16 x)
112 {
113 	return __arch__swab16(x);
114 }
__fswab32(__u32 x)115 static inline const __u32 __fswab32(__u32 x)
116 {
117 	return __arch__swab32(x);
118 }
119 
120 #define swab16 __swab16
121 #define swab32 __swab32
122 #define swab64 __swab64
123 #define swab16p __swab16p
124 #define swab32p __swab32p
125 #define swab64p __swab64p
126 #define swab16s __swab16s
127 #define swab32s __swab32s
128 #define swab64s __swab64s
129 
130 #endif /* _LINUX_BYTEORDER_SWAB_H */
131 
132