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 _WIFI_H_
27 #define _WIFI_H_
28 
29 #include "rtl871x_byteorder.h"
30 #include <linux/compiler.h>
31 
32 #ifdef BIT
33 #undef BIT
34 #endif
35 #define BIT(x)	(1 << (x))
36 
37 #define WLAN_ETHHDR_LEN		14
38 #define WLAN_ETHADDR_LEN	6
39 #define WLAN_IEEE_OUI_LEN	3
40 #define WLAN_ADDR_LEN		6
41 #define WLAN_CRC_LEN		4
42 #define WLAN_BSSID_LEN		6
43 #define WLAN_BSS_TS_LEN		8
44 #define WLAN_HDR_A3_LEN		24
45 #define WLAN_HDR_A4_LEN		30
46 #define WLAN_HDR_A3_QOS_LEN	26
47 #define WLAN_HDR_A4_QOS_LEN	32
48 #define WLAN_SSID_MAXLEN	32
49 #define WLAN_DATA_MAXLEN	2312
50 
51 #define WLAN_A3_PN_OFFSET	24
52 #define WLAN_A4_PN_OFFSET	30
53 
54 #define WLAN_MIN_ETHFRM_LEN	60
55 #define WLAN_MAX_ETHFRM_LEN	1514
56 #define WLAN_ETHHDR_LEN		14
57 
58 #define P80211CAPTURE_VERSION	0x80211001
59 
60 enum WIFI_FRAME_TYPE {
61 	WIFI_MGT_TYPE  =	(0),
62 	WIFI_CTRL_TYPE =	(BIT(2)),
63 	WIFI_DATA_TYPE =	(BIT(3)),
64 	WIFI_QOS_DATA_TYPE	= (BIT(7)|BIT(3)),	/*!< QoS Data */
65 };
66 
67 enum WIFI_FRAME_SUBTYPE {
68 	/* below is for mgt frame */
69 	WIFI_ASSOCREQ       = (0 | WIFI_MGT_TYPE),
70 	WIFI_ASSOCRSP       = (BIT(4) | WIFI_MGT_TYPE),
71 	WIFI_REASSOCREQ     = (BIT(5) | WIFI_MGT_TYPE),
72 	WIFI_REASSOCRSP     = (BIT(5) | BIT(4) | WIFI_MGT_TYPE),
73 	WIFI_PROBEREQ       = (BIT(6) | WIFI_MGT_TYPE),
74 	WIFI_PROBERSP       = (BIT(6) | BIT(4) | WIFI_MGT_TYPE),
75 	WIFI_BEACON         = (BIT(7) | WIFI_MGT_TYPE),
76 	WIFI_ATIM           = (BIT(7) | BIT(4) | WIFI_MGT_TYPE),
77 	WIFI_DISASSOC       = (BIT(7) | BIT(5) | WIFI_MGT_TYPE),
78 	WIFI_AUTH           = (BIT(7) | BIT(5) | BIT(4) | WIFI_MGT_TYPE),
79 	WIFI_DEAUTH         = (BIT(7) | BIT(6) | WIFI_MGT_TYPE),
80 	WIFI_ACTION         = (BIT(7) | BIT(6) | BIT(4) | WIFI_MGT_TYPE),
81 	/* below is for control frame */
82 	WIFI_PSPOLL         = (BIT(7) | BIT(5) | WIFI_CTRL_TYPE),
83 	WIFI_RTS            = (BIT(7) | BIT(5) | BIT(4) | WIFI_CTRL_TYPE),
84 	WIFI_CTS            = (BIT(7) | BIT(6) | WIFI_CTRL_TYPE),
85 	WIFI_ACK            = (BIT(7) | BIT(6) | BIT(4) | WIFI_CTRL_TYPE),
86 	WIFI_CFEND          = (BIT(7) | BIT(6) | BIT(5) | WIFI_CTRL_TYPE),
87 	WIFI_CFEND_CFACK = (BIT(7) | BIT(6) | BIT(5) | BIT(4) | WIFI_CTRL_TYPE),
88 	/* below is for data frame */
89 	WIFI_DATA           = (0 | WIFI_DATA_TYPE),
90 	WIFI_DATA_CFACK     = (BIT(4) | WIFI_DATA_TYPE),
91 	WIFI_DATA_CFPOLL    = (BIT(5) | WIFI_DATA_TYPE),
92 	WIFI_DATA_CFACKPOLL = (BIT(5) | BIT(4) | WIFI_DATA_TYPE),
93 	WIFI_DATA_NULL      = (BIT(6) | WIFI_DATA_TYPE),
94 	WIFI_CF_ACK         = (BIT(6) | BIT(4) | WIFI_DATA_TYPE),
95 	WIFI_CF_POLL        = (BIT(6) | BIT(5) | WIFI_DATA_TYPE),
96 	WIFI_CF_ACKPOLL     = (BIT(6) | BIT(5) | BIT(4) | WIFI_DATA_TYPE),
97 };
98 
99 enum WIFI_REASON_CODE	{
100 	_RSON_RESERVED_			= 0,
101 	_RSON_UNSPECIFIED_		= 1,
102 	_RSON_AUTH_NO_LONGER_VALID_	= 2,
103 	_RSON_DEAUTH_STA_LEAVING_	= 3,
104 	_RSON_INACTIVITY_		= 4,
105 	_RSON_UNABLE_HANDLE_		= 5,
106 	_RSON_CLS2_			= 6,
107 	_RSON_CLS3_			= 7,
108 	_RSON_DISAOC_STA_LEAVING_	= 8,
109 	_RSON_ASOC_NOT_AUTH_		= 9,
110 	/* WPA reason */
111 	_RSON_INVALID_IE_		= 13,
112 	_RSON_MIC_FAILURE_		= 14,
113 	_RSON_4WAY_HNDSHK_TIMEOUT_	= 15,
114 	_RSON_GROUP_KEY_UPDATE_TIMEOUT_	= 16,
115 	_RSON_DIFF_IE_			= 17,
116 	_RSON_MLTCST_CIPHER_NOT_VALID_	= 18,
117 	_RSON_UNICST_CIPHER_NOT_VALID_	= 19,
118 	_RSON_AKMP_NOT_VALID_		= 20,
119 	_RSON_UNSUPPORT_RSNE_VER_	= 21,
120 	_RSON_INVALID_RSNE_CAP_		= 22,
121 	_RSON_IEEE_802DOT1X_AUTH_FAIL_	= 23,
122 	/* below are Realtek definitions */
123 	_RSON_PMK_NOT_AVAILABLE_	= 24,
124 };
125 
126 enum WIFI_STATUS_CODE {
127 	_STATS_SUCCESSFUL_		= 0,
128 	_STATS_FAILURE_			= 1,
129 	_STATS_CAP_FAIL_		= 10,
130 	_STATS_NO_ASOC_			= 11,
131 	_STATS_OTHER_			= 12,
132 	_STATS_NO_SUPP_ALG_		= 13,
133 	_STATS_OUT_OF_AUTH_SEQ_		= 14,
134 	_STATS_CHALLENGE_FAIL_		= 15,
135 	_STATS_AUTH_TIMEOUT_		= 16,
136 	_STATS_UNABLE_HANDLE_STA_	= 17,
137 	_STATS_RATE_FAIL_		= 18,
138 };
139 
140 enum WIFI_REG_DOMAIN {
141 	DOMAIN_FCC	= 1,
142 	DOMAIN_IC	= 2,
143 	DOMAIN_ETSI	= 3,
144 	DOMAIN_SPAIN	= 4,
145 	DOMAIN_FRANCE	= 5,
146 	DOMAIN_MKK	= 6,
147 	DOMAIN_ISRAEL	= 7,
148 	DOMAIN_MKK1	= 8,
149 	DOMAIN_MKK2	= 9,
150 	DOMAIN_MKK3	= 10,
151 	DOMAIN_MAX
152 };
153 
154 #define _TO_DS_		BIT(8)
155 #define _FROM_DS_	BIT(9)
156 #define _MORE_FRAG_	BIT(10)
157 #define _RETRY_		BIT(11)
158 #define _PWRMGT_	BIT(12)
159 #define _MORE_DATA_	BIT(13)
160 #define _PRIVACY_	BIT(14)
161 #define _ORDER_		BIT(15)
162 
163 #define SetToDs(pbuf)	\
164 	do	{	\
165 		*(unsigned short *)(pbuf) |= cpu_to_le16(_TO_DS_); \
166 	} while (0)
167 
168 #define GetToDs(pbuf)	(((*(unsigned short *)(pbuf)) & \
169 			le16_to_cpu(_TO_DS_)) != 0)
170 
171 #define ClearToDs(pbuf)	\
172 	do	{	\
173 		*(unsigned short *)(pbuf) &= (~cpu_to_le16(_TO_DS_)); \
174 	} while (0)
175 
176 #define SetFrDs(pbuf)	\
177 	do	{	\
178 		*(unsigned short *)(pbuf) |= cpu_to_le16(_FROM_DS_); \
179 	} while (0)
180 
181 #define GetFrDs(pbuf)	(((*(unsigned short *)(pbuf)) & \
182 			le16_to_cpu(_FROM_DS_)) != 0)
183 
184 #define ClearFrDs(pbuf)	\
185 	do	{	\
186 		*(unsigned short *)(pbuf) &= (~cpu_to_le16(_FROM_DS_)); \
187 	} while (0)
188 
189 #define get_tofr_ds(pframe)	((GetToDs(pframe) << 1) | GetFrDs(pframe))
190 
191 
192 #define SetMFrag(pbuf)	\
193 	do	{	\
194 		*(unsigned short *)(pbuf) |= cpu_to_le16(_MORE_FRAG_); \
195 	} while (0)
196 
197 #define GetMFrag(pbuf)	(((*(unsigned short *)(pbuf)) & \
198 			le16_to_cpu(_MORE_FRAG_)) != 0)
199 
200 #define ClearMFrag(pbuf)	\
201 	do	{	\
202 		*(unsigned short *)(pbuf) &= (~cpu_to_le16(_MORE_FRAG_)); \
203 	} while (0)
204 
205 #define SetRetry(pbuf)	\
206 	do	{	\
207 		*(unsigned short *)(pbuf) |= cpu_to_le16(_RETRY_); \
208 	} while (0)
209 
210 #define GetRetry(pbuf)	(((*(unsigned short *)(pbuf)) & \
211 			le16_to_cpu(_RETRY_)) != 0)
212 
213 #define ClearRetry(pbuf)	\
214 	do	{	\
215 		*(unsigned short *)(pbuf) &= (~cpu_to_le16(_RETRY_)); \
216 	} while (0)
217 
218 #define SetPwrMgt(pbuf)	\
219 	do	{	\
220 		*(unsigned short *)(pbuf) |= cpu_to_le16(_PWRMGT_); \
221 	} while (0)
222 
223 #define GetPwrMgt(pbuf)	(((*(unsigned short *)(pbuf)) & \
224 			le16_to_cpu(_PWRMGT_)) != 0)
225 
226 #define ClearPwrMgt(pbuf)	\
227 	do	{	\
228 		*(unsigned short *)(pbuf) &= (~cpu_to_le16(_PWRMGT_)); \
229 	} while (0)
230 
231 #define SetMData(pbuf)	\
232 	do	{	\
233 		*(unsigned short *)(pbuf) |= cpu_to_le16(_MORE_DATA_); \
234 	} while (0)
235 
236 #define GetMData(pbuf)	(((*(unsigned short *)(pbuf)) & \
237 			le16_to_cpu(_MORE_DATA_)) != 0)
238 
239 #define ClearMData(pbuf)	\
240 	do	{	\
241 		*(unsigned short *)(pbuf) &= (~cpu_to_le16(_MORE_DATA_)); \
242 	} while (0)
243 
244 #define SetPrivacy(pbuf)	\
245 	do	{	\
246 		*(unsigned short *)(pbuf) |= cpu_to_le16(_PRIVACY_); \
247 	} while (0)
248 
249 #define GetPrivacy(pbuf)	(((*(unsigned short *)(pbuf)) & \
250 				le16_to_cpu(_PRIVACY_)) != 0)
251 
252 #define ClearPrivacy(pbuf)	\
253 	do	{	\
254 		*(unsigned short *)(pbuf) &= (~cpu_to_le16(_PRIVACY_)); \
255 	} while (0)
256 
257 
258 #define GetOrder(pbuf)	(((*(unsigned short *)(pbuf)) & \
259 			le16_to_cpu(_ORDER_)) != 0)
260 
261 #define GetFrameType(pbuf)	(le16_to_cpu(*(unsigned short *)(pbuf)) & \
262 				(BIT(3) | BIT(2)))
263 
264 #define SetFrameType(pbuf, type)	\
265 	do {	\
266 		*(unsigned short *)(pbuf) &= __constant_cpu_to_le16(~(BIT(3) | \
267 		BIT(2))); \
268 		*(unsigned short *)(pbuf) |= __constant_cpu_to_le16(type); \
269 	} while (0)
270 
271 #define GetFrameSubType(pbuf)	(cpu_to_le16(*(unsigned short *)(pbuf)) & \
272 				(BIT(7) | BIT(6) | BIT(5) | BIT(4) | BIT(3) | \
273 				BIT(2)))
274 
275 #define SetFrameSubType(pbuf, type) \
276 	do {    \
277 		*(unsigned short *)(pbuf) &= cpu_to_le16(~(BIT(7) | BIT(6) | \
278 		BIT(5) | BIT(4) | BIT(3) | BIT(2))); \
279 		*(unsigned short *)(pbuf) |= cpu_to_le16(type); \
280 	} while (0)
281 
282 #define GetSequence(pbuf)	(cpu_to_le16(*(unsigned short *)\
283 				((addr_t)(pbuf) + 22)) >> 4)
284 
285 #define GetFragNum(pbuf)	(cpu_to_le16(*(unsigned short *)((addr_t)\
286 				(pbuf) + 22)) & 0x0f)
287 
288 #define GetTupleCache(pbuf)	(cpu_to_le16(*(unsigned short *)\
289 				((addr_t)(pbuf) + 22)))
290 
291 #define SetFragNum(pbuf, num) \
292 	do {    \
293 		*(unsigned short *)((addr_t)(pbuf) + 22) = \
294 			((*(unsigned short *)((addr_t)(pbuf) + 22)) & \
295 			le16_to_cpu(~(0x000f))) | \
296 			cpu_to_le16(0x0f & (num));     \
297 	} while (0)
298 
299 #define SetSeqNum(pbuf, num) \
300 	do {    \
301 		*(unsigned short *)((addr_t)(pbuf) + 22) = \
302 			((*(unsigned short *)((addr_t)(pbuf) + 22)) & \
303 			le16_to_cpu((unsigned short)0x000f)) | \
304 			le16_to_cpu((unsigned short)(0xfff0 & (num << 4))); \
305 	} while (0)
306 
307 #define SetDuration(pbuf, dur) \
308 	do {    \
309 		*(unsigned short *)((addr_t)(pbuf) + 2) |= \
310 			cpu_to_le16(0xffff & (dur)); \
311 	} while (0)
312 
313 #define SetPriority(pbuf, tid)	\
314 	do	{	\
315 		*(unsigned short *)(pbuf) |= cpu_to_le16(tid & 0xf); \
316 	} while (0)
317 
318 #define GetPriority(pbuf)	((le16_to_cpu(*(unsigned short *)(pbuf))) & 0xf)
319 
320 #define SetAckpolicy(pbuf, ack)	\
321 	do	{	\
322 		*(unsigned short *)(pbuf) |= cpu_to_le16((ack & 3) << 5); \
323 	} while (0)
324 
325 #define GetAckpolicy(pbuf) (((le16_to_cpu(*(unsigned short *)pbuf)) >> 5) & 0x3)
326 
327 #define GetAMsdu(pbuf) (((le16_to_cpu(*(unsigned short *)pbuf)) >> 7) & 0x1)
328 
329 #define SetAMsdu(pbuf, amsdu)	\
330 	do	{	\
331 		*(unsigned short *)(pbuf) |= cpu_to_le16((amsdu & 1) << 7); \
332 	} while (0)
333 
334 #define GetAid(pbuf)	(cpu_to_le16(*(unsigned short *)((addr_t)(pbuf) + 2)) \
335 			& 0x3fff)
336 
337 #define GetTid(pbuf)	(cpu_to_le16(*(unsigned short *)((addr_t)(pbuf) + \
338 			(((GetToDs(pbuf) << 1)|GetFrDs(pbuf)) == 3 ? \
339 			30 : 24))) & 0x000f)
340 
341 #define GetAddr1Ptr(pbuf)	((unsigned char *)((addr_t)(pbuf) + 4))
342 
343 #define GetAddr2Ptr(pbuf)	((unsigned char *)((addr_t)(pbuf) + 10))
344 
345 #define GetAddr3Ptr(pbuf)	((unsigned char *)((addr_t)(pbuf) + 16))
346 
347 #define GetAddr4Ptr(pbuf)	((unsigned char *)((addr_t)(pbuf) + 24))
348 
349 
350 
IS_MCAST(unsigned char * da)351 static inline int IS_MCAST(unsigned char *da)
352 {
353 	if ((*da) & 0x01)
354 		return true;
355 	else
356 		return false;
357 }
358 
359 
get_da(unsigned char * pframe)360 static inline unsigned char *get_da(unsigned char *pframe)
361 {
362 	unsigned char	*da;
363 	unsigned int	to_fr_ds = (GetToDs(pframe) << 1) | GetFrDs(pframe);
364 
365 	switch (to_fr_ds) {
366 	case 0x00:	/* ToDs=0, FromDs=0 */
367 		da = GetAddr1Ptr(pframe);
368 		break;
369 	case 0x01:	/* ToDs=0, FromDs=1 */
370 		da = GetAddr1Ptr(pframe);
371 		break;
372 	case 0x02:	/* ToDs=1, FromDs=0 */
373 		da = GetAddr3Ptr(pframe);
374 		break;
375 	default:	/* ToDs=1, FromDs=1 */
376 		da = GetAddr3Ptr(pframe);
377 		break;
378 	}
379 	return da;
380 }
381 
382 
get_sa(unsigned char * pframe)383 static inline unsigned char *get_sa(unsigned char *pframe)
384 {
385 	unsigned char	*sa;
386 	unsigned int	to_fr_ds = (GetToDs(pframe) << 1) | GetFrDs(pframe);
387 
388 	switch (to_fr_ds) {
389 	case 0x00:	/* ToDs=0, FromDs=0 */
390 		sa = GetAddr2Ptr(pframe);
391 		break;
392 	case 0x01:	/* ToDs=0, FromDs=1 */
393 		sa = GetAddr3Ptr(pframe);
394 		break;
395 	case 0x02:	/* ToDs=1, FromDs=0 */
396 		sa = GetAddr2Ptr(pframe);
397 		break;
398 	default:	/* ToDs=1, FromDs=1 */
399 		sa = GetAddr4Ptr(pframe);
400 		break;
401 	}
402 
403 	return sa;
404 }
405 
get_hdr_bssid(unsigned char * pframe)406 static inline unsigned char *get_hdr_bssid(unsigned char *pframe)
407 {
408 	unsigned char	*sa;
409 	unsigned int	to_fr_ds = (GetToDs(pframe) << 1) | GetFrDs(pframe);
410 
411 	switch (to_fr_ds) {
412 	case 0x00:	/* ToDs=0, FromDs=0 */
413 		sa = GetAddr3Ptr(pframe);
414 		break;
415 	case 0x01:	/* ToDs=0, FromDs=1 */
416 		sa = GetAddr2Ptr(pframe);
417 		break;
418 	case 0x02:	/* ToDs=1, FromDs=0 */
419 		sa = GetAddr1Ptr(pframe);
420 		break;
421 	default:	/* ToDs=1, FromDs=1 */
422 		sa = NULL;
423 		break;
424 	}
425 	return sa;
426 }
427 
428 
429 
430 /*-----------------------------------------------------------------------------
431 			Below is for the security related definition
432 ------------------------------------------------------------------------------*/
433 #define _RESERVED_FRAME_TYPE_	0
434 #define _SKB_FRAME_TYPE_	2
435 #define _PRE_ALLOCMEM_		1
436 #define _PRE_ALLOCHDR_		3
437 #define _PRE_ALLOCLLCHDR_	4
438 #define _PRE_ALLOCICVHDR_	5
439 #define _PRE_ALLOCMICHDR_	6
440 
441 #define _SIFSTIME_		((priv->pmib->BssType.net_work_type & \
442 				WIRELESS_11A) ? 16 : 10)
443 #define _ACKCTSLNG_		14	/*14 bytes long, including crclng */
444 #define _CRCLNG_		4
445 
446 #define _ASOCREQ_IE_OFFSET_	4	/* excluding wlan_hdr */
447 #define	_ASOCRSP_IE_OFFSET_	6
448 #define _REASOCREQ_IE_OFFSET_	10
449 #define _REASOCRSP_IE_OFFSET_	6
450 #define _PROBEREQ_IE_OFFSET_	0
451 #define	_PROBERSP_IE_OFFSET_	12
452 #define _AUTH_IE_OFFSET_	6
453 #define _DEAUTH_IE_OFFSET_	0
454 #define _BEACON_IE_OFFSET_	12
455 
456 #define _FIXED_IE_LENGTH_	_BEACON_IE_OFFSET_
457 
458 #define _SSID_IE_		0
459 #define _SUPPORTEDRATES_IE_	1
460 #define _DSSET_IE_		3
461 #define _TIM_IE_		5
462 #define _IBSS_PARA_IE_		6
463 #define _CHLGETXT_IE_		16
464 #define _RSN_IE_2_		48`
465 #define _SSN_IE_1_		221
466 #define _ERPINFO_IE_		42
467 #define _EXT_SUPPORTEDRATES_IE_	50
468 
469 #define _HT_CAPABILITY_IE_	45
470 #define _HT_EXTRA_INFO_IE_	61
471 #define _HT_ADD_INFO_IE_	61 /* _HT_EXTRA_INFO_IE_ */
472 
473 #define _VENDOR_SPECIFIC_IE_	221
474 
475 #define	_RESERVED47_		47
476 
477 
478 /* ---------------------------------------------------------------------------
479 					Below is the fixed elements...
480 -----------------------------------------------------------------------------*/
481 #define _AUTH_ALGM_NUM_			2
482 #define _AUTH_SEQ_NUM_			2
483 #define _BEACON_ITERVAL_		2
484 #define _CAPABILITY_			2
485 #define _CURRENT_APADDR_		6
486 #define _LISTEN_INTERVAL_		2
487 #define _RSON_CODE_				2
488 #define _ASOC_ID_				2
489 #define _STATUS_CODE_			2
490 #define _TIMESTAMP_				8
491 
492 #define AUTH_ODD_TO				0
493 #define AUTH_EVEN_TO			1
494 
495 #define WLAN_ETHCONV_ENCAP		1
496 #define WLAN_ETHCONV_RFC1042	2
497 #define WLAN_ETHCONV_8021h		3
498 
499 #define cap_ESS BIT(0)
500 #define cap_IBSS BIT(1)
501 #define cap_CFPollable BIT(2)
502 #define cap_CFRequest BIT(3)
503 #define cap_Privacy BIT(4)
504 #define cap_ShortPremble BIT(5)
505 
506 /*-----------------------------------------------------------------------------
507 				Below is the definition for 802.11i / 802.1x
508 ------------------------------------------------------------------------------*/
509 #define _IEEE8021X_MGT_			1	/*WPA */
510 #define _IEEE8021X_PSK_			2	/* WPA with pre-shared key */
511 
512 /*-----------------------------------------------------------------------------
513 				Below is the definition for WMM
514 ------------------------------------------------------------------------------*/
515 #define _WMM_IE_Length_				7  /* for WMM STA */
516 #define _WMM_Para_Element_Length_		24
517 
518 
519 /*-----------------------------------------------------------------------------
520 				Below is the definition for 802.11n
521 ------------------------------------------------------------------------------*/
522 
523 /* block-ack parameters */
524 #define IEEE80211_ADDBA_PARAM_POLICY_MASK 0x0002
525 #define IEEE80211_ADDBA_PARAM_TID_MASK 0x003C
526 #define IEEE80211_ADDBA_PARAM_BUF_SIZE_MASK 0xFFA0
527 #define IEEE80211_DELBA_PARAM_TID_MASK 0xF000
528 #define IEEE80211_DELBA_PARAM_INITIATOR_MASK 0x0800
529 
530 #define SetOrderBit(pbuf)	\
531 	do	{	\
532 		*(unsigned short *)(pbuf) |= cpu_to_le16(_ORDER_); \
533 	} while (0)
534 
535 #define GetOrderBit(pbuf)	(((*(unsigned short *)(pbuf)) & \
536 				le16_to_cpu(_ORDER_)) != 0)
537 
538 
539 /**
540  * struct ieee80211_bar - HT Block Ack Request
541  *
542  * This structure refers to "HT BlockAckReq" as
543  * described in 802.11n draft section 7.2.1.7.1
544  */
545 struct ieee80211_bar {
546 	unsigned short frame_control;
547 	unsigned short duration;
548 	unsigned char ra[6];
549 	unsigned char ta[6];
550 	unsigned short control;
551 	unsigned short start_seq_num;
552 } __packed;
553 
554 /* 802.11 BAR control masks */
555 #define IEEE80211_BAR_CTRL_ACK_POLICY_NORMAL     0x0000
556 #define IEEE80211_BAR_CTRL_CBMTID_COMPRESSED_BA  0x0004
557 
558 
559  /**
560  * struct ieee80211_ht_cap - HT capabilities
561  *
562  * This structure refers to "HT capabilities element" as
563  * described in 802.11n draft section 7.3.2.52
564  */
565 
566 struct ieee80211_ht_cap {
567 	unsigned short	cap_info;
568 	unsigned char	ampdu_params_info;
569 	unsigned char	supp_mcs_set[16];
570 	unsigned short	extended_ht_cap_info;
571 	unsigned int		tx_BF_cap_info;
572 	unsigned char	       antenna_selection_info;
573 } __packed;
574 
575 /**
576  * struct ieee80211_ht_cap - HT additional information
577  *
578  * This structure refers to "HT information element" as
579  * described in 802.11n draft section 7.3.2.53
580  */
581 struct ieee80211_ht_addt_info {
582 	unsigned char	control_chan;
583 	unsigned char		ht_param;
584 	unsigned short	operation_mode;
585 	unsigned short	stbc_param;
586 	unsigned char		basic_set[16];
587 } __packed;
588 
589 /* 802.11n HT capabilities masks */
590 #define IEEE80211_HT_CAP_SUP_WIDTH		0x0002
591 #define IEEE80211_HT_CAP_SM_PS			0x000C
592 #define IEEE80211_HT_CAP_GRN_FLD		0x0010
593 #define IEEE80211_HT_CAP_SGI_20			0x0020
594 #define IEEE80211_HT_CAP_SGI_40			0x0040
595 #define IEEE80211_HT_CAP_TX_STBC			0x0080
596 #define IEEE80211_HT_CAP_DELAY_BA		0x0400
597 #define IEEE80211_HT_CAP_MAX_AMSDU		0x0800
598 #define IEEE80211_HT_CAP_DSSSCCK40		0x1000
599 /* 802.11n HT capability AMPDU settings */
600 #define IEEE80211_HT_CAP_AMPDU_FACTOR		0x03
601 #define IEEE80211_HT_CAP_AMPDU_DENSITY		0x1C
602 /* 802.11n HT capability MSC set */
603 #define IEEE80211_SUPP_MCS_SET_UEQM		4
604 #define IEEE80211_HT_CAP_MAX_STREAMS		4
605 #define IEEE80211_SUPP_MCS_SET_LEN		10
606 /* maximum streams the spec allows */
607 #define IEEE80211_HT_CAP_MCS_TX_DEFINED		0x01
608 #define IEEE80211_HT_CAP_MCS_TX_RX_DIFF		0x02
609 #define IEEE80211_HT_CAP_MCS_TX_STREAMS		0x0C
610 #define IEEE80211_HT_CAP_MCS_TX_UEQM		0x10
611 /* 802.11n HT IE masks */
612 #define IEEE80211_HT_IE_CHA_SEC_OFFSET		0x03
613 #define IEEE80211_HT_IE_CHA_SEC_NONE		0x00
614 #define IEEE80211_HT_IE_CHA_SEC_ABOVE		0x01
615 #define IEEE80211_HT_IE_CHA_SEC_BELOW		0x03
616 #define IEEE80211_HT_IE_CHA_WIDTH		0x04
617 #define IEEE80211_HT_IE_HT_PROTECTION		0x0003
618 #define IEEE80211_HT_IE_NON_GF_STA_PRSNT	0x0004
619 #define IEEE80211_HT_IE_NON_HT_STA_PRSNT	0x0010
620 
621 /* block-ack parameters */
622 #define IEEE80211_ADDBA_PARAM_POLICY_MASK 0x0002
623 #define IEEE80211_ADDBA_PARAM_TID_MASK 0x003C
624 #define IEEE80211_ADDBA_PARAM_BUF_SIZE_MASK 0xFFA0
625 #define IEEE80211_DELBA_PARAM_TID_MASK 0xF000
626 #define IEEE80211_DELBA_PARAM_INITIATOR_MASK 0x0800
627 
628 /*
629  * A-PMDU buffer sizes
630  * According to IEEE802.11n spec size varies from 8K to 64K (in powers of 2)
631  */
632 #define IEEE80211_MIN_AMPDU_BUF 0x8
633 #define IEEE80211_MAX_AMPDU_BUF 0x40
634 
635 
636 /* Spatial Multiplexing Power Save Modes */
637 #define WLAN_HT_CAP_SM_PS_STATIC		0
638 #define WLAN_HT_CAP_SM_PS_DYNAMIC	1
639 #define WLAN_HT_CAP_SM_PS_INVALID	2
640 #define WLAN_HT_CAP_SM_PS_DISABLED	3
641 
642 #endif /* _WIFI_H_ */
643 
644