1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
|
/*
* Byte order utilities
*
* Copyright (C) 1999-2010, Broadcom Corporation
*
* Unless you and Broadcom execute a separate written software license
* agreement governing use of this software, this software is licensed to you
* under the terms of the GNU General Public License version 2 (the "GPL"),
* available at http://www.broadcom.com/licenses/GPLv2.php, with the
* following added to such license:
*
* As a special exception, the copyright holders of this software give you
* permission to link this software with independent modules, and to copy and
* distribute the resulting executable under terms of your choice, provided that
* you also meet, for each linked independent module, the terms and conditions of
* the license of that module. An independent module is a module which is not
* derived from this software. The special exception does not apply to any
* modifications of the software.
*
* Notwithstanding the above, under no circumstances may you combine this
* software in any way with any other Broadcom software provided under a license
* other than the GPL, without Broadcom's express prior written consent.
*
* $Id: bcmendian.h,v 1.31.302.1.16.1 2009/02/03 18:34:31 Exp $
*
* This file by default provides proper behavior on little-endian architectures.
* On big-endian architectures, IL_BIGENDIAN should be defined.
*/
#ifndef _BCMENDIAN_H_
#define _BCMENDIAN_H_
#include <typedefs.h>
#define BCMSWAP16(val) \
((uint16)((((uint16)(val) & (uint16)0x00ffU) << 8) | \
(((uint16)(val) & (uint16)0xff00U) >> 8)))
#define BCMSWAP32(val) \
((uint32)((((uint32)(val) & (uint32)0x000000ffU) << 24) | \
(((uint32)(val) & (uint32)0x0000ff00U) << 8) | \
(((uint32)(val) & (uint32)0x00ff0000U) >> 8) | \
(((uint32)(val) & (uint32)0xff000000U) >> 24)))
#define BCMSWAP32BY16(val) \
((uint32)((((uint32)(val) & (uint32)0x0000ffffU) << 16) | \
(((uint32)(val) & (uint32)0xffff0000U) >> 16)))
static INLINE uint16
bcmswap16(uint16 val)
{
return BCMSWAP16(val);
}
static INLINE uint32
bcmswap32(uint32 val)
{
return BCMSWAP32(val);
}
static INLINE uint32
bcmswap32by16(uint32 val)
{
return BCMSWAP32BY16(val);
}
static INLINE void
bcmswap16_buf(uint16 *buf, uint len)
{
len = len / 2;
while (len--) {
*buf = bcmswap16(*buf);
buf++;
}
}
#ifndef hton16
#ifndef IL_BIGENDIAN
#define HTON16(i) BCMSWAP16(i)
#define HTON32(i) BCMSWAP32(i)
#define hton16(i) bcmswap16(i)
#define hton32(i) bcmswap32(i)
#define ntoh16(i) bcmswap16(i)
#define ntoh32(i) bcmswap32(i)
#define HTOL16(i) (i)
#define HTOL32(i) (i)
#define ltoh16(i) (i)
#define ltoh32(i) (i)
#define htol16(i) (i)
#define htol32(i) (i)
#else
#define HTON16(i) (i)
#define HTON32(i) (i)
#define hton16(i) (i)
#define hton32(i) (i)
#define ntoh16(i) (i)
#define ntoh32(i) (i)
#define HTOL16(i) BCMSWAP16(i)
#define HTOL32(i) BCMSWAP32(i)
#define ltoh16(i) bcmswap16(i)
#define ltoh32(i) bcmswap32(i)
#define htol16(i) bcmswap16(i)
#define htol32(i) bcmswap32(i)
#endif
#endif
#ifndef IL_BIGENDIAN
#define ltoh16_buf(buf, i)
#define htol16_buf(buf, i)
#else
#define ltoh16_buf(buf, i) bcmswap16_buf((uint16 *)buf, i)
#define htol16_buf(buf, i) bcmswap16_buf((uint16 *)buf, i)
#endif
static INLINE void
htol16_ua_store(uint16 val, uint8 *bytes)
{
bytes[0] = val & 0xff;
bytes[1] = val >> 8;
}
static INLINE void
htol32_ua_store(uint32 val, uint8 *bytes)
{
bytes[0] = val & 0xff;
bytes[1] = (val >> 8) & 0xff;
bytes[2] = (val >> 16) & 0xff;
bytes[3] = val >> 24;
}
static INLINE void
hton16_ua_store(uint16 val, uint8 *bytes)
{
bytes[0] = val >> 8;
bytes[1] = val & 0xff;
}
static INLINE void
hton32_ua_store(uint32 val, uint8 *bytes)
{
bytes[0] = val >> 24;
bytes[1] = (val >> 16) & 0xff;
bytes[2] = (val >> 8) & 0xff;
bytes[3] = val & 0xff;
}
#define _LTOH16_UA(cp) ((cp)[0] | ((cp)[1] << 8))
#define _LTOH32_UA(cp) ((cp)[0] | ((cp)[1] << 8) | ((cp)[2] << 16) | ((cp)[3] << 24))
#define _NTOH16_UA(cp) (((cp)[0] << 8) | (cp)[1])
#define _NTOH32_UA(cp) (((cp)[0] << 24) | ((cp)[1] << 16) | ((cp)[2] << 8) | (cp)[3])
static INLINE uint16
ltoh16_ua(const void *bytes)
{
return _LTOH16_UA((const uint8 *)bytes);
}
static INLINE uint32
ltoh32_ua(const void *bytes)
{
return _LTOH32_UA((const uint8 *)bytes);
}
static INLINE uint16
ntoh16_ua(const void *bytes)
{
return _NTOH16_UA((const uint8 *)bytes);
}
static INLINE uint32
ntoh32_ua(const void *bytes)
{
return _NTOH32_UA((const uint8 *)bytes);
}
#define ltoh_ua(ptr) \
(sizeof(*(ptr)) == sizeof(uint8) ? *(const uint8 *)ptr : \
sizeof(*(ptr)) == sizeof(uint16) ? _LTOH16_UA((const uint8 *)ptr) : \
sizeof(*(ptr)) == sizeof(uint32) ? _LTOH32_UA((const uint8 *)ptr) : \
0xfeedf00d)
#define ntoh_ua(ptr) \
(sizeof(*(ptr)) == sizeof(uint8) ? *(const uint8 *)ptr : \
sizeof(*(ptr)) == sizeof(uint16) ? _NTOH16_UA((const uint8 *)ptr) : \
sizeof(*(ptr)) == sizeof(uint32) ? _NTOH32_UA((const uint8 *)ptr) : \
0xfeedf00d)
#endif
|
