Merge tag 'modules-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
[deliverable/linux.git] / drivers / staging / vt6656 / 80211hdr.h
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1/*
2 * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc.
3 * All rights reserved.
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License along
16 * with this program; if not, write to the Free Software Foundation, Inc.,
17 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
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19 * File: 80211hdr.h
20 *
21 * Purpose: 802.11 MAC headers related pre-defines and macros.
22 *
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23 * Author: Lyndon Chen
24 *
25 * Date: Apr 8, 2002
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26 */
27
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28#ifndef __80211HDR_H__
29#define __80211HDR_H__
30
bd2de358 31/* bit type */
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32#define BIT0 0x00000001
33#define BIT1 0x00000002
34#define BIT2 0x00000004
35#define BIT3 0x00000008
36#define BIT4 0x00000010
37#define BIT5 0x00000020
38#define BIT6 0x00000040
39#define BIT7 0x00000080
40#define BIT8 0x00000100
41#define BIT9 0x00000200
42#define BIT10 0x00000400
43#define BIT11 0x00000800
44#define BIT12 0x00001000
45#define BIT13 0x00002000
46#define BIT14 0x00004000
47#define BIT15 0x00008000
48#define BIT16 0x00010000
49#define BIT17 0x00020000
50#define BIT18 0x00040000
51#define BIT19 0x00080000
52#define BIT20 0x00100000
53#define BIT21 0x00200000
54#define BIT22 0x00400000
55#define BIT23 0x00800000
56#define BIT24 0x01000000
57#define BIT25 0x02000000
58#define BIT26 0x04000000
59#define BIT27 0x08000000
60#define BIT28 0x10000000
61#define BIT29 0x20000000
62#define BIT30 0x40000000
63#define BIT31 0x80000000
64
bd2de358 65/* 802.11 frame related, defined as 802.11 spec */
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66#define WLAN_ADDR_LEN 6
67#define WLAN_CRC_LEN 4
68#define WLAN_CRC32_LEN 4
69#define WLAN_FCS_LEN 4
70#define WLAN_BSSID_LEN 6
71#define WLAN_BSS_TS_LEN 8
72#define WLAN_HDR_ADDR2_LEN 16
73#define WLAN_HDR_ADDR3_LEN 24
74#define WLAN_HDR_ADDR4_LEN 30
75#define WLAN_IEHDR_LEN 2
76#define WLAN_SSID_MAXLEN 32
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77#define WLAN_RATES_MAXLEN 16
78#define WLAN_RATES_MAXLEN_11B 4
79#define WLAN_RSN_MAXLEN 32
80#define WLAN_DATA_MAXLEN 2312
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81#define WLAN_A3FR_MAXLEN (WLAN_HDR_ADDR3_LEN \
82 + WLAN_DATA_MAXLEN \
83 + WLAN_CRC_LEN)
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84
85#define WLAN_BEACON_FR_MAXLEN WLAN_A3FR_MAXLEN
86#define WLAN_ATIM_FR_MAXLEN (WLAN_HDR_ADDR3_LEN + 0)
87#define WLAN_NULLDATA_FR_MAXLEN (WLAN_HDR_ADDR3_LEN + 0)
88#define WLAN_DISASSOC_FR_MAXLEN (WLAN_HDR_ADDR3_LEN + 2)
89#define WLAN_ASSOCREQ_FR_MAXLEN WLAN_A3FR_MAXLEN
90#define WLAN_ASSOCRESP_FR_MAXLEN WLAN_A3FR_MAXLEN
91#define WLAN_REASSOCREQ_FR_MAXLEN WLAN_A3FR_MAXLEN
92#define WLAN_REASSOCRESP_FR_MAXLEN WLAN_A3FR_MAXLEN
93#define WLAN_PROBEREQ_FR_MAXLEN WLAN_A3FR_MAXLEN
94#define WLAN_PROBERESP_FR_MAXLEN WLAN_A3FR_MAXLEN
95#define WLAN_AUTHEN_FR_MAXLEN WLAN_A3FR_MAXLEN
96#define WLAN_DEAUTHEN_FR_MAXLEN (WLAN_HDR_ADDR3_LEN + 2)
97
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98#define WLAN_WEP_NKEYS 4
99#define WLAN_WEP40_KEYLEN 5
100#define WLAN_WEP104_KEYLEN 13
101#define WLAN_WEP232_KEYLEN 29
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102#define WLAN_WEPMAX_KEYLEN 32
103#define WLAN_CHALLENGE_IE_MAXLEN 255
104#define WLAN_CHALLENGE_IE_LEN 130
105#define WLAN_CHALLENGE_LEN 128
106#define WLAN_WEP_IV_LEN 4
107#define WLAN_WEP_ICV_LEN 4
108#define WLAN_FRAGS_MAX 16
109
bd2de358 110/* Frame Type */
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111#define WLAN_TYPE_MGR 0x00
112#define WLAN_TYPE_CTL 0x01
113#define WLAN_TYPE_DATA 0x02
114
115#define WLAN_FTYPE_MGMT 0x00
116#define WLAN_FTYPE_CTL 0x01
117#define WLAN_FTYPE_DATA 0x02
118
bd2de358 119/* Frame Subtypes */
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120#define WLAN_FSTYPE_ASSOCREQ 0x00
121#define WLAN_FSTYPE_ASSOCRESP 0x01
122#define WLAN_FSTYPE_REASSOCREQ 0x02
123#define WLAN_FSTYPE_REASSOCRESP 0x03
124#define WLAN_FSTYPE_PROBEREQ 0x04
125#define WLAN_FSTYPE_PROBERESP 0x05
126#define WLAN_FSTYPE_BEACON 0x08
127#define WLAN_FSTYPE_ATIM 0x09
128#define WLAN_FSTYPE_DISASSOC 0x0a
129#define WLAN_FSTYPE_AUTHEN 0x0b
130#define WLAN_FSTYPE_DEAUTHEN 0x0c
131#define WLAN_FSTYPE_ACTION 0x0d
132
bd2de358 133/* Control */
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134#define WLAN_FSTYPE_PSPOLL 0x0a
135#define WLAN_FSTYPE_RTS 0x0b
136#define WLAN_FSTYPE_CTS 0x0c
137#define WLAN_FSTYPE_ACK 0x0d
138#define WLAN_FSTYPE_CFEND 0x0e
139#define WLAN_FSTYPE_CFENDCFACK 0x0f
140
bd2de358 141/* Data */
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142#define WLAN_FSTYPE_DATAONLY 0x00
143#define WLAN_FSTYPE_DATA_CFACK 0x01
144#define WLAN_FSTYPE_DATA_CFPOLL 0x02
145#define WLAN_FSTYPE_DATA_CFACK_CFPOLL 0x03
146#define WLAN_FSTYPE_NULL 0x04
147#define WLAN_FSTYPE_CFACK 0x05
148#define WLAN_FSTYPE_CFPOLL 0x06
149#define WLAN_FSTYPE_CFACK_CFPOLL 0x07
150
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151#ifdef __BIG_ENDIAN
152
bd2de358 153/* GET & SET Frame Control bit */
74f161f6 154#define WLAN_GET_FC_PRVER(n) (((u16)(n) >> 8) & (BIT0 | BIT1))
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155#define WLAN_GET_FC_FTYPE(n) ((((u16)(n) >> 8) & (BIT2 | BIT3)) >> 2)
156#define WLAN_GET_FC_FSTYPE(n) ((((u16)(n) >> 8) \
bd2de358 157 & (BIT4|BIT5|BIT6|BIT7)) >> 4)
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158#define WLAN_GET_FC_TODS(n) ((((u16)(n) << 8) & (BIT8)) >> 8)
159#define WLAN_GET_FC_FROMDS(n) ((((u16)(n) << 8) & (BIT9)) >> 9)
160#define WLAN_GET_FC_MOREFRAG(n) ((((u16)(n) << 8) & (BIT10)) >> 10)
161#define WLAN_GET_FC_RETRY(n) ((((u16)(n) << 8) & (BIT11)) >> 11)
162#define WLAN_GET_FC_PWRMGT(n) ((((u16)(n) << 8) & (BIT12)) >> 12)
163#define WLAN_GET_FC_MOREDATA(n) ((((u16)(n) << 8) & (BIT13)) >> 13)
164#define WLAN_GET_FC_ISWEP(n) ((((u16)(n) << 8) & (BIT14)) >> 14)
165#define WLAN_GET_FC_ORDER(n) ((((u16)(n) << 8) & (BIT15)) >> 15)
92b96797 166
bd2de358 167/* Sequence Field bit */
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168#define WLAN_GET_SEQ_FRGNUM(n) (((u16)(n) >> 8) & (BIT0|BIT1|BIT2|BIT3))
169#define WLAN_GET_SEQ_SEQNUM(n) ((((u16)(n) >> 8) \
bd2de358 170 & (~(BIT0|BIT1|BIT2|BIT3))) >> 4)
92b96797 171
bd2de358 172/* Capability Field bit */
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173#define WLAN_GET_CAP_INFO_ESS(n) (((n) >> 8) & BIT0)
174#define WLAN_GET_CAP_INFO_IBSS(n) ((((n) >> 8) & BIT1) >> 1)
175#define WLAN_GET_CAP_INFO_CFPOLLABLE(n) ((((n) >> 8) & BIT2) >> 2)
176#define WLAN_GET_CAP_INFO_CFPOLLREQ(n) ((((n) >> 8) & BIT3) >> 3)
177#define WLAN_GET_CAP_INFO_PRIVACY(n) ((((n) >> 8) & BIT4) >> 4)
178#define WLAN_GET_CAP_INFO_SHORTPREAMBLE(n) ((((n) >> 8) & BIT5) >> 5)
179#define WLAN_GET_CAP_INFO_PBCC(n) ((((n) >> 8) & BIT6) >> 6)
180#define WLAN_GET_CAP_INFO_AGILITY(n) ((((n) >> 8) & BIT7) >> 7)
181#define WLAN_GET_CAP_INFO_SPECTRUMMNG(n) ((((n)) & BIT8) >> 10)
182#define WLAN_GET_CAP_INFO_SHORTSLOTTIME(n) ((((n)) & BIT10) >> 10)
183#define WLAN_GET_CAP_INFO_DSSSOFDM(n) ((((n)) & BIT13) >> 13)
184#define WLAN_GET_CAP_INFO_GRPACK(n) ((((n)) & BIT14) >> 14)
185
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186#else
187
bd2de358 188/* GET & SET Frame Control bit */
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189#define WLAN_GET_FC_PRVER(n) (((u16)(n)) & (BIT0 | BIT1))
190#define WLAN_GET_FC_FTYPE(n) ((((u16)(n)) & (BIT2 | BIT3)) >> 2)
191#define WLAN_GET_FC_FSTYPE(n) ((((u16)(n)) & (BIT4|BIT5|BIT6|BIT7)) >> 4)
192#define WLAN_GET_FC_TODS(n) ((((u16)(n)) & (BIT8)) >> 8)
193#define WLAN_GET_FC_FROMDS(n) ((((u16)(n)) & (BIT9)) >> 9)
194#define WLAN_GET_FC_MOREFRAG(n) ((((u16)(n)) & (BIT10)) >> 10)
195#define WLAN_GET_FC_RETRY(n) ((((u16)(n)) & (BIT11)) >> 11)
196#define WLAN_GET_FC_PWRMGT(n) ((((u16)(n)) & (BIT12)) >> 12)
197#define WLAN_GET_FC_MOREDATA(n) ((((u16)(n)) & (BIT13)) >> 13)
198#define WLAN_GET_FC_ISWEP(n) ((((u16)(n)) & (BIT14)) >> 14)
199#define WLAN_GET_FC_ORDER(n) ((((u16)(n)) & (BIT15)) >> 15)
92b96797 200
bd2de358 201/* Sequence Field bit */
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202#define WLAN_GET_SEQ_FRGNUM(n) (((u16)(n)) & (BIT0|BIT1|BIT2|BIT3))
203#define WLAN_GET_SEQ_SEQNUM(n) ((((u16)(n)) & (~(BIT0|BIT1|BIT2|BIT3))) >> 4)
92b96797 204
bd2de358 205/* Capability Field bit */
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206#define WLAN_GET_CAP_INFO_ESS(n) ((n) & BIT0)
207#define WLAN_GET_CAP_INFO_IBSS(n) (((n) & BIT1) >> 1)
208#define WLAN_GET_CAP_INFO_CFPOLLABLE(n) (((n) & BIT2) >> 2)
209#define WLAN_GET_CAP_INFO_CFPOLLREQ(n) (((n) & BIT3) >> 3)
210#define WLAN_GET_CAP_INFO_PRIVACY(n) (((n) & BIT4) >> 4)
211#define WLAN_GET_CAP_INFO_SHORTPREAMBLE(n) (((n) & BIT5) >> 5)
212#define WLAN_GET_CAP_INFO_PBCC(n) (((n) & BIT6) >> 6)
213#define WLAN_GET_CAP_INFO_AGILITY(n) (((n) & BIT7) >> 7)
214#define WLAN_GET_CAP_INFO_SPECTRUMMNG(n) (((n) & BIT8) >> 10)
215#define WLAN_GET_CAP_INFO_SHORTSLOTTIME(n) (((n) & BIT10) >> 10)
216#define WLAN_GET_CAP_INFO_DSSSOFDM(n) (((n) & BIT13) >> 13)
217#define WLAN_GET_CAP_INFO_GRPACK(n) (((n) & BIT14) >> 14)
218
bd2de358 219#endif /* #ifdef __BIG_ENDIAN */
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220
221#define WLAN_SET_CAP_INFO_ESS(n) (n)
222#define WLAN_SET_CAP_INFO_IBSS(n) ((n) << 1)
223#define WLAN_SET_CAP_INFO_CFPOLLABLE(n) ((n) << 2)
224#define WLAN_SET_CAP_INFO_CFPOLLREQ(n) ((n) << 3)
225#define WLAN_SET_CAP_INFO_PRIVACY(n) ((n) << 4)
226#define WLAN_SET_CAP_INFO_SHORTPREAMBLE(n) ((n) << 5)
227#define WLAN_SET_CAP_INFO_SPECTRUMMNG(n) ((n) << 8)
228#define WLAN_SET_CAP_INFO_PBCC(n) ((n) << 6)
229#define WLAN_SET_CAP_INFO_AGILITY(n) ((n) << 7)
230#define WLAN_SET_CAP_INFO_SHORTSLOTTIME(n) ((n) << 10)
231#define WLAN_SET_CAP_INFO_DSSSOFDM(n) ((n) << 13)
232#define WLAN_SET_CAP_INFO_GRPACK(n) ((n) << 14)
233
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234#define WLAN_SET_FC_PRVER(n) ((u16)(n))
235#define WLAN_SET_FC_FTYPE(n) (((u16)(n)) << 2)
236#define WLAN_SET_FC_FSTYPE(n) (((u16)(n)) << 4)
237#define WLAN_SET_FC_TODS(n) (((u16)(n)) << 8)
238#define WLAN_SET_FC_FROMDS(n) (((u16)(n)) << 9)
239#define WLAN_SET_FC_MOREFRAG(n) (((u16)(n)) << 10)
240#define WLAN_SET_FC_RETRY(n) (((u16)(n)) << 11)
241#define WLAN_SET_FC_PWRMGT(n) (((u16)(n)) << 12)
242#define WLAN_SET_FC_MOREDATA(n) (((u16)(n)) << 13)
243#define WLAN_SET_FC_ISWEP(n) (((u16)(n)) << 14)
244#define WLAN_SET_FC_ORDER(n) (((u16)(n)) << 15)
245
246#define WLAN_SET_SEQ_FRGNUM(n) ((u16)(n))
247#define WLAN_SET_SEQ_SEQNUM(n) (((u16)(n)) << 4)
92b96797 248
bd2de358 249/* ERP Field bit */
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250
251#define WLAN_GET_ERP_NONERP_PRESENT(n) ((n) & BIT0)
252#define WLAN_GET_ERP_USE_PROTECTION(n) (((n) & BIT1) >> 1)
253#define WLAN_GET_ERP_BARKER_MODE(n) (((n) & BIT2) >> 2)
254
255#define WLAN_SET_ERP_NONERP_PRESENT(n) (n)
256#define WLAN_SET_ERP_USE_PROTECTION(n) ((n) << 1)
257#define WLAN_SET_ERP_BARKER_MODE(n) ((n) << 2)
258
bd2de358 259/* Support & Basic Rates field */
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260#define WLAN_MGMT_IS_BASICRATE(b) ((b) & BIT7)
261#define WLAN_MGMT_GET_RATE(b) ((b) & ~BIT7)
262
bd2de358 263/* TIM field */
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264#define WLAN_MGMT_IS_MULTICAST_TIM(b) ((b) & BIT0)
265#define WLAN_MGMT_GET_TIM_OFFSET(b) (((b) & ~BIT0) >> 1)
266
bd2de358 267/* 3-Addr & 4-Addr */
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268#define WLAN_HDR_A3_DATA_PTR(p) (((u8 *)(p)) + WLAN_HDR_ADDR3_LEN)
269#define WLAN_HDR_A4_DATA_PTR(p) (((u8 *)(p)) + WLAN_HDR_ADDR4_LEN)
92b96797 270
bd2de358 271/* IEEE ADDR */
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272#define IEEE_ADDR_UNIVERSAL 0x02
273#define IEEE_ADDR_GROUP 0x01
274
275typedef struct {
b902fbfe 276 u8 abyAddr[6];
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277} IEEE_ADDR, *PIEEE_ADDR;
278
bd2de358 279/* 802.11 Header Format */
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280
281typedef struct tagWLAN_80211HDR_A2 {
282
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283 u16 wFrameCtl;
284 u16 wDurationID;
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285 u8 abyAddr1[WLAN_ADDR_LEN];
286 u8 abyAddr2[WLAN_ADDR_LEN];
92b96797 287
bd2de358 288} __attribute__ ((__packed__))
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289WLAN_80211HDR_A2, *PWLAN_80211HDR_A2;
290
291typedef struct tagWLAN_80211HDR_A3 {
292
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293 u16 wFrameCtl;
294 u16 wDurationID;
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295 u8 abyAddr1[WLAN_ADDR_LEN];
296 u8 abyAddr2[WLAN_ADDR_LEN];
297 u8 abyAddr3[WLAN_ADDR_LEN];
3eaca0d2 298 u16 wSeqCtl;
92b96797 299
bd2de358 300} __attribute__ ((__packed__))
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301WLAN_80211HDR_A3, *PWLAN_80211HDR_A3;
302
303typedef struct tagWLAN_80211HDR_A4 {
304
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305 u16 wFrameCtl;
306 u16 wDurationID;
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307 u8 abyAddr1[WLAN_ADDR_LEN];
308 u8 abyAddr2[WLAN_ADDR_LEN];
309 u8 abyAddr3[WLAN_ADDR_LEN];
3eaca0d2 310 u16 wSeqCtl;
b902fbfe 311 u8 abyAddr4[WLAN_ADDR_LEN];
92b96797 312
bd2de358 313} __attribute__ ((__packed__))
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314WLAN_80211HDR_A4, *PWLAN_80211HDR_A4;
315
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316typedef union tagUWLAN_80211HDR {
317
318 WLAN_80211HDR_A2 sA2;
319 WLAN_80211HDR_A3 sA3;
320 WLAN_80211HDR_A4 sA4;
321
322} UWLAN_80211HDR, *PUWLAN_80211HDR;
323
bd2de358 324#endif /* __80211HDR_H__ */
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