1/******************************************************************************
2 * Copyright(c) 2008 - 2010 Realtek Corporation. All rights reserved.
3 *
4 * This program is distributed in the hope that it will be useful, but WITHOUT
5 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
6 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
7 * more details.
8 *
9 * You should have received a copy of the GNU General Public License along with
10 * this program; if not, write to the Free Software Foundation, Inc.,
11 * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
12 *
13 * The full GNU General Public License is included in this distribution in the
14 * file called LICENSE.
15 *
16 * Contact Information:
17 * wlanfae <wlanfae@realtek.com>
18******************************************************************************/
19#include "rtllib.h"
20#include "rtl819x_HT.h"
21u8 MCS_FILTER_ALL[16] = {
22	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
23	0xff, 0x1f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
24};
25
26u8 MCS_FILTER_1SS[16] = {
27	0xff, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00,
28	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}
29;
30
31u16 MCS_DATA_RATE[2][2][77] = {
32	{{13, 26, 39, 52, 78, 104, 117, 130, 26, 52, 78, 104, 156, 208, 234,
33	 260, 39, 78, 117, 234, 312, 351, 390, 52, 104, 156, 208, 312, 416,
34	 468, 520, 0, 78, 104, 130, 117, 156, 195, 104, 130, 130, 156, 182,
35	 182, 208, 156, 195, 195, 234, 273, 273, 312, 130, 156, 181, 156,
36	 181, 208, 234, 208, 234, 260, 260, 286, 195, 234, 273, 234, 273,
37	 312, 351, 312, 351, 390, 390, 429} ,
38	{14, 29, 43, 58, 87, 116, 130, 144, 29, 58, 87, 116, 173, 231, 260, 289,
39	 43, 87, 130, 173, 260, 347, 390, 433, 58, 116, 173, 231, 347, 462, 520,
40	 578, 0, 87, 116, 144, 130, 173, 217, 116, 144, 144, 173, 202, 202, 231,
41	 173, 217, 217, 260, 303, 303, 347, 144, 173, 202, 173, 202, 231, 260,
42	 231, 260, 289, 289, 318, 217, 260, 303, 260, 303, 347, 390, 347, 390,
43	 433, 433, 477} } ,
44	{{27, 54, 81, 108, 162, 216, 243, 270, 54, 108, 162, 216, 324, 432, 486,
45	 540, 81, 162, 243, 324, 486, 648, 729, 810, 108, 216, 324, 432, 648,
46	 864, 972, 1080, 12, 162, 216, 270, 243, 324, 405, 216, 270, 270, 324,
47	 378, 378, 432, 324, 405, 405, 486, 567, 567, 648, 270, 324, 378, 324,
48	 378, 432, 486, 432, 486, 540, 540, 594, 405, 486, 567, 486, 567, 648,
49	 729, 648, 729, 810, 810, 891},
50	{30, 60, 90, 120, 180, 240, 270, 300, 60, 120, 180, 240, 360, 480, 540,
51	 600, 90, 180, 270, 360, 540, 720, 810, 900, 120, 240, 360, 480, 720,
52	 960, 1080, 1200, 13, 180, 240, 300, 270, 360, 450, 240, 300, 300, 360,
53	 420, 420, 480, 360, 450, 450, 540, 630, 630, 720, 300, 360, 420, 360,
54	 420, 480, 540, 480, 540, 600, 600, 660, 450, 540, 630, 540, 630, 720,
55	 810, 720, 810, 900, 900, 990} }
56};
57
58static u8 UNKNOWN_BORADCOM[3] = {0x00, 0x14, 0xbf};
59
60static u8 LINKSYSWRT330_LINKSYSWRT300_BROADCOM[3] = {0x00, 0x1a, 0x70};
61
62static u8 LINKSYSWRT350_LINKSYSWRT150_BROADCOM[3] = {0x00, 0x1d, 0x7e};
63
64static u8 BELKINF5D8233V1_RALINK[3] = {0x00, 0x17, 0x3f};
65
66static u8 BELKINF5D82334V3_RALINK[3] = {0x00, 0x1c, 0xdf};
67
68static u8 PCI_RALINK[3] = {0x00, 0x90, 0xcc};
69
70static u8 EDIMAX_RALINK[3] = {0x00, 0x0e, 0x2e};
71
72static u8 AIRLINK_RALINK[3] = {0x00, 0x18, 0x02};
73
74static u8 DLINK_ATHEROS_1[3] = {0x00, 0x1c, 0xf0};
75
76static u8 DLINK_ATHEROS_2[3] = {0x00, 0x21, 0x91};
77
78static u8 CISCO_BROADCOM[3] = {0x00, 0x17, 0x94};
79
80static u8 LINKSYS_MARVELL_4400N[3] = {0x00, 0x14, 0xa4};
81
82void HTUpdateDefaultSetting(struct rtllib_device *ieee)
83{
84	struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
85
86	pHTInfo->bAcceptAddbaReq = 1;
87
88	pHTInfo->bRegShortGI20MHz = 1;
89	pHTInfo->bRegShortGI40MHz = 1;
90
91	pHTInfo->bRegBW40MHz = 1;
92
93	if (pHTInfo->bRegBW40MHz)
94		pHTInfo->bRegSuppCCK = 1;
95	else
96		pHTInfo->bRegSuppCCK = true;
97
98	pHTInfo->nAMSDU_MaxSize = 7935UL;
99	pHTInfo->bAMSDU_Support = 0;
100
101	pHTInfo->bAMPDUEnable = 1;
102	pHTInfo->AMPDU_Factor = 2;
103	pHTInfo->MPDU_Density = 0;
104
105	pHTInfo->SelfMimoPs = 3;
106	if (pHTInfo->SelfMimoPs == 2)
107		pHTInfo->SelfMimoPs = 3;
108	ieee->bTxDisableRateFallBack = 0;
109	ieee->bTxUseDriverAssingedRate = 0;
110
111	ieee->bTxEnableFwCalcDur = 1;
112
113	pHTInfo->bRegRT2RTAggregation = 1;
114
115	pHTInfo->bRegRxReorderEnable = 1;
116	pHTInfo->RxReorderWinSize = 64;
117	pHTInfo->RxReorderPendingTime = 30;
118}
119
120void HTDebugHTCapability(u8 *CapIE, u8 *TitleString)
121{
122
123	static u8	EWC11NHTCap[] = {0x00, 0x90, 0x4c, 0x33};
124	struct ht_capab_ele *pCapELE;
125
126	if (!memcmp(CapIE, EWC11NHTCap, sizeof(EWC11NHTCap))) {
127		RTLLIB_DEBUG(RTLLIB_DL_HT, "EWC IE in %s()\n", __func__);
128		pCapELE = (struct ht_capab_ele *)(&CapIE[4]);
129	} else
130		pCapELE = (struct ht_capab_ele *)(&CapIE[0]);
131
132	RTLLIB_DEBUG(RTLLIB_DL_HT, "<Log HT Capability>. Called by %s\n",
133		     TitleString);
134
135	RTLLIB_DEBUG(RTLLIB_DL_HT,  "\tSupported Channel Width = %s\n",
136		     (pCapELE->ChlWidth) ? "20MHz" : "20/40MHz");
137	RTLLIB_DEBUG(RTLLIB_DL_HT,  "\tSupport Short GI for 20M = %s\n",
138		     (pCapELE->ShortGI20Mhz) ? "YES" : "NO");
139	RTLLIB_DEBUG(RTLLIB_DL_HT,  "\tSupport Short GI for 40M = %s\n",
140		     (pCapELE->ShortGI40Mhz) ? "YES" : "NO");
141	RTLLIB_DEBUG(RTLLIB_DL_HT,  "\tSupport TX STBC = %s\n",
142		     (pCapELE->TxSTBC) ? "YES" : "NO");
143	RTLLIB_DEBUG(RTLLIB_DL_HT,  "\tMax AMSDU Size = %s\n",
144		     (pCapELE->MaxAMSDUSize) ? "3839" : "7935");
145	RTLLIB_DEBUG(RTLLIB_DL_HT,  "\tSupport CCK in 20/40 mode = %s\n",
146		     (pCapELE->DssCCk) ? "YES" : "NO");
147	RTLLIB_DEBUG(RTLLIB_DL_HT,  "\tMax AMPDU Factor = %d\n",
148		     pCapELE->MaxRxAMPDUFactor);
149	RTLLIB_DEBUG(RTLLIB_DL_HT,  "\tMPDU Density = %d\n",
150		     pCapELE->MPDUDensity);
151	RTLLIB_DEBUG(RTLLIB_DL_HT,  "\tMCS Rate Set = [%x][%x][%x][%x][%x]\n",
152		     pCapELE->MCS[0], pCapELE->MCS[1], pCapELE->MCS[2],
153		     pCapELE->MCS[3], pCapELE->MCS[4]);
154	return;
155
156}
157
158void HTDebugHTInfo(u8 *InfoIE, u8 *TitleString)
159{
160
161	static u8	EWC11NHTInfo[] = {0x00, 0x90, 0x4c, 0x34};
162	struct ht_info_ele *pHTInfoEle;
163
164	if (!memcmp(InfoIE, EWC11NHTInfo, sizeof(EWC11NHTInfo))) {
165		RTLLIB_DEBUG(RTLLIB_DL_HT, "EWC IE in %s()\n", __func__);
166		pHTInfoEle = (struct ht_info_ele *)(&InfoIE[4]);
167	} else
168		pHTInfoEle = (struct ht_info_ele *)(&InfoIE[0]);
169
170
171	RTLLIB_DEBUG(RTLLIB_DL_HT, "<Log HT Information Element>. "
172		     "Called by %s\n", TitleString);
173
174	RTLLIB_DEBUG(RTLLIB_DL_HT, "\tPrimary channel = %d\n",
175		     pHTInfoEle->ControlChl);
176	RTLLIB_DEBUG(RTLLIB_DL_HT, "\tSenondary channel =");
177	switch (pHTInfoEle->ExtChlOffset) {
178	case 0:
179		RTLLIB_DEBUG(RTLLIB_DL_HT, "Not Present\n");
180		break;
181	case 1:
182		RTLLIB_DEBUG(RTLLIB_DL_HT, "Upper channel\n");
183		break;
184	case 2:
185		RTLLIB_DEBUG(RTLLIB_DL_HT, "Reserved. Eooro!!!\n");
186		break;
187	case 3:
188		RTLLIB_DEBUG(RTLLIB_DL_HT, "Lower Channel\n");
189		break;
190	}
191	RTLLIB_DEBUG(RTLLIB_DL_HT, "\tRecommended channel width = %s\n",
192		     (pHTInfoEle->RecommemdedTxWidth) ? "20Mhz" : "40Mhz");
193
194	RTLLIB_DEBUG(RTLLIB_DL_HT, "\tOperation mode for protection = ");
195	switch (pHTInfoEle->OptMode) {
196	case 0:
197		RTLLIB_DEBUG(RTLLIB_DL_HT, "No Protection\n");
198		break;
199	case 1:
200		RTLLIB_DEBUG(RTLLIB_DL_HT, "HT non-member protection mode\n");
201		break;
202	case 2:
203		RTLLIB_DEBUG(RTLLIB_DL_HT, "Suggest to open protection\n");
204		break;
205	case 3:
206		RTLLIB_DEBUG(RTLLIB_DL_HT, "HT mixed mode\n");
207		break;
208	}
209
210	RTLLIB_DEBUG(RTLLIB_DL_HT, "\tBasic MCS Rate Set = [%x][%x][%x][%x]"
211		     "[%x]\n", pHTInfoEle->BasicMSC[0], pHTInfoEle->BasicMSC[1],
212		     pHTInfoEle->BasicMSC[2], pHTInfoEle->BasicMSC[3],
213		     pHTInfoEle->BasicMSC[4]);
214}
215
216static bool IsHTHalfNmode40Bandwidth(struct rtllib_device *ieee)
217{
218	bool			retValue = false;
219	struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
220
221	if (pHTInfo->bCurrentHTSupport == false)
222		retValue = false;
223	else if (pHTInfo->bRegBW40MHz == false)
224		retValue = false;
225	else if (!ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev))
226		retValue = false;
227	else if (((struct ht_capab_ele *)(pHTInfo->PeerHTCapBuf))->ChlWidth)
228		retValue = true;
229	else
230		retValue = false;
231
232	return retValue;
233}
234
235static bool IsHTHalfNmodeSGI(struct rtllib_device *ieee, bool is40MHz)
236{
237	bool			retValue = false;
238	struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
239
240	if (pHTInfo->bCurrentHTSupport == false)
241		retValue = false;
242	else if (!ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev))
243		retValue = false;
244	else if (is40MHz) {
245		if (((struct ht_capab_ele *)
246		    (pHTInfo->PeerHTCapBuf))->ShortGI40Mhz)
247			retValue = true;
248		else
249			retValue = false;
250	} else {
251		if (((struct ht_capab_ele *)
252		   (pHTInfo->PeerHTCapBuf))->ShortGI20Mhz)
253			retValue = true;
254		else
255			retValue = false;
256	}
257
258	return retValue;
259}
260
261u16 HTHalfMcsToDataRate(struct rtllib_device *ieee, u8 nMcsRate)
262{
263
264	u8	is40MHz;
265	u8	isShortGI;
266
267	is40MHz  =  (IsHTHalfNmode40Bandwidth(ieee)) ? 1 : 0;
268	isShortGI = (IsHTHalfNmodeSGI(ieee, is40MHz)) ? 1 : 0;
269
270	return MCS_DATA_RATE[is40MHz][isShortGI][(nMcsRate & 0x7f)];
271}
272
273
274u16 HTMcsToDataRate(struct rtllib_device *ieee, u8 nMcsRate)
275{
276	struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
277
278	u8	is40MHz = (pHTInfo->bCurBW40MHz) ? 1 : 0;
279	u8	isShortGI = (pHTInfo->bCurBW40MHz) ?
280			    ((pHTInfo->bCurShortGI40MHz) ? 1 : 0) :
281			    ((pHTInfo->bCurShortGI20MHz) ? 1 : 0);
282	return MCS_DATA_RATE[is40MHz][isShortGI][(nMcsRate & 0x7f)];
283}
284
285u16  TxCountToDataRate(struct rtllib_device *ieee, u8 nDataRate)
286{
287	u16	CCKOFDMRate[12] = {0x02, 0x04, 0x0b, 0x16, 0x0c, 0x12, 0x18,
288				   0x24, 0x30, 0x48, 0x60, 0x6c};
289	u8	is40MHz = 0;
290	u8	isShortGI = 0;
291
292	if (nDataRate < 12) {
293		return CCKOFDMRate[nDataRate];
294	} else {
295		if (nDataRate >= 0x10 && nDataRate <= 0x1f) {
296			is40MHz = 0;
297			isShortGI = 0;
298		} else if (nDataRate >= 0x20  && nDataRate <= 0x2f) {
299			is40MHz = 1;
300			isShortGI = 0;
301
302		} else if (nDataRate >= 0x30  && nDataRate <= 0x3f) {
303			is40MHz = 0;
304			isShortGI = 1;
305		} else if (nDataRate >= 0x40  && nDataRate <= 0x4f) {
306			is40MHz = 1;
307			isShortGI = 1;
308		}
309		return MCS_DATA_RATE[is40MHz][isShortGI][nDataRate&0xf];
310	}
311}
312
313bool IsHTHalfNmodeAPs(struct rtllib_device *ieee)
314{
315	bool			retValue = false;
316	struct rtllib_network *net = &ieee->current_network;
317
318	if ((memcmp(net->bssid, BELKINF5D8233V1_RALINK, 3) == 0) ||
319	    (memcmp(net->bssid, BELKINF5D82334V3_RALINK, 3) == 0) ||
320	    (memcmp(net->bssid, PCI_RALINK, 3) == 0) ||
321	    (memcmp(net->bssid, EDIMAX_RALINK, 3) == 0) ||
322	    (memcmp(net->bssid, AIRLINK_RALINK, 3) == 0) ||
323	    (net->ralink_cap_exist))
324		retValue = true;
325	else if (!memcmp(net->bssid, UNKNOWN_BORADCOM, 3) ||
326		!memcmp(net->bssid, LINKSYSWRT330_LINKSYSWRT300_BROADCOM, 3) ||
327		!memcmp(net->bssid, LINKSYSWRT350_LINKSYSWRT150_BROADCOM, 3) ||
328		(net->broadcom_cap_exist))
329		retValue = true;
330	else if (net->bssht.bdRT2RTAggregation)
331		retValue = true;
332	else
333		retValue = false;
334
335	return retValue;
336}
337
338static void HTIOTPeerDetermine(struct rtllib_device *ieee)
339{
340	struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
341	struct rtllib_network *net = &ieee->current_network;
342
343	if (net->bssht.bdRT2RTAggregation) {
344		pHTInfo->IOTPeer = HT_IOT_PEER_REALTEK;
345		if (net->bssht.RT2RT_HT_Mode & RT_HT_CAP_USE_92SE)
346			pHTInfo->IOTPeer = HT_IOT_PEER_REALTEK_92SE;
347		if (net->bssht.RT2RT_HT_Mode & RT_HT_CAP_USE_SOFTAP)
348			pHTInfo->IOTPeer = HT_IOT_PEER_92U_SOFTAP;
349	} else if (net->broadcom_cap_exist)
350		pHTInfo->IOTPeer = HT_IOT_PEER_BROADCOM;
351	else if (!memcmp(net->bssid, UNKNOWN_BORADCOM, 3) ||
352		 !memcmp(net->bssid, LINKSYSWRT330_LINKSYSWRT300_BROADCOM, 3) ||
353		 !memcmp(net->bssid, LINKSYSWRT350_LINKSYSWRT150_BROADCOM, 3))
354		pHTInfo->IOTPeer = HT_IOT_PEER_BROADCOM;
355	else if ((memcmp(net->bssid, BELKINF5D8233V1_RALINK, 3) == 0) ||
356		 (memcmp(net->bssid, BELKINF5D82334V3_RALINK, 3) == 0) ||
357		 (memcmp(net->bssid, PCI_RALINK, 3) == 0) ||
358		 (memcmp(net->bssid, EDIMAX_RALINK, 3) == 0) ||
359		 (memcmp(net->bssid, AIRLINK_RALINK, 3) == 0) ||
360		  net->ralink_cap_exist)
361		pHTInfo->IOTPeer = HT_IOT_PEER_RALINK;
362	else if ((net->atheros_cap_exist) ||
363		(memcmp(net->bssid, DLINK_ATHEROS_1, 3) == 0) ||
364		(memcmp(net->bssid, DLINK_ATHEROS_2, 3) == 0))
365		pHTInfo->IOTPeer = HT_IOT_PEER_ATHEROS;
366	else if ((memcmp(net->bssid, CISCO_BROADCOM, 3) == 0) ||
367		  net->cisco_cap_exist)
368		pHTInfo->IOTPeer = HT_IOT_PEER_CISCO;
369	else if ((memcmp(net->bssid, LINKSYS_MARVELL_4400N, 3) == 0) ||
370		  net->marvell_cap_exist)
371		pHTInfo->IOTPeer = HT_IOT_PEER_MARVELL;
372	else if (net->airgo_cap_exist)
373		pHTInfo->IOTPeer = HT_IOT_PEER_AIRGO;
374	else
375		pHTInfo->IOTPeer = HT_IOT_PEER_UNKNOWN;
376
377	RTLLIB_DEBUG(RTLLIB_DL_IOT, "Joseph debug!! IOTPEER: %x\n",
378		     pHTInfo->IOTPeer);
379}
380
381static u8 HTIOTActIsDisableMCS14(struct rtllib_device *ieee, u8 *PeerMacAddr)
382{
383	return 0;
384}
385
386
387static bool HTIOTActIsDisableMCS15(struct rtllib_device *ieee)
388{
389	bool retValue = false;
390
391	return retValue;
392}
393
394static bool HTIOTActIsDisableMCSTwoSpatialStream(struct rtllib_device *ieee)
395{
396	return false;
397}
398
399static u8 HTIOTActIsDisableEDCATurbo(struct rtllib_device *ieee, u8 *PeerMacAddr)
400{
401	return false;
402}
403
404static u8 HTIOTActIsMgntUseCCK6M(struct rtllib_device *ieee,
405				 struct rtllib_network *network)
406{
407	u8	retValue = 0;
408
409
410	if (ieee->pHTInfo->IOTPeer == HT_IOT_PEER_BROADCOM)
411		retValue = 1;
412
413	return retValue;
414}
415
416static u8 HTIOTActIsCCDFsync(struct rtllib_device *ieee)
417{
418	u8	retValue = 0;
419
420	if (ieee->pHTInfo->IOTPeer == HT_IOT_PEER_BROADCOM)
421		retValue = 1;
422	return retValue;
423}
424
425static void HTIOTActDetermineRaFunc(struct rtllib_device *ieee, bool bPeerRx2ss)
426{
427	struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
428
429	pHTInfo->IOTRaFunc &= HT_IOT_RAFUNC_DISABLE_ALL;
430
431	if (pHTInfo->IOTPeer == HT_IOT_PEER_RALINK && !bPeerRx2ss)
432		pHTInfo->IOTRaFunc |= HT_IOT_RAFUNC_PEER_1R;
433
434	if (pHTInfo->IOTAction & HT_IOT_ACT_AMSDU_ENABLE)
435		pHTInfo->IOTRaFunc |= HT_IOT_RAFUNC_TX_AMSDU;
436
437}
438
439void HTResetIOTSetting(struct rt_hi_throughput *pHTInfo)
440{
441	pHTInfo->IOTAction = 0;
442	pHTInfo->IOTPeer = HT_IOT_PEER_UNKNOWN;
443	pHTInfo->IOTRaFunc = 0;
444}
445
446void HTConstructCapabilityElement(struct rtllib_device *ieee, u8 *posHTCap,
447				  u8 *len, u8 IsEncrypt, bool bAssoc)
448{
449	struct rt_hi_throughput *pHT = ieee->pHTInfo;
450	struct ht_capab_ele *pCapELE = NULL;
451
452	if ((posHTCap == NULL) || (pHT == NULL)) {
453		RTLLIB_DEBUG(RTLLIB_DL_ERR, "posHTCap or pHTInfo can't be "
454			     "null in HTConstructCapabilityElement()\n");
455		return;
456	}
457	memset(posHTCap, 0, *len);
458
459	if ((bAssoc) && (pHT->ePeerHTSpecVer == HT_SPEC_VER_EWC)) {
460		u8	EWC11NHTCap[] = {0x00, 0x90, 0x4c, 0x33};
461
462		memcpy(posHTCap, EWC11NHTCap, sizeof(EWC11NHTCap));
463		pCapELE = (struct ht_capab_ele *)&(posHTCap[4]);
464		*len = 30 + 2;
465	} else {
466		pCapELE = (struct ht_capab_ele *)posHTCap;
467		*len = 26 + 2;
468	}
469
470	pCapELE->AdvCoding		= 0;
471	if (ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev))
472		pCapELE->ChlWidth = 0;
473	else
474		pCapELE->ChlWidth = (pHT->bRegBW40MHz ? 1 : 0);
475
476	pCapELE->MimoPwrSave		= pHT->SelfMimoPs;
477	pCapELE->GreenField		= 0;
478	pCapELE->ShortGI20Mhz		= 1;
479	pCapELE->ShortGI40Mhz		= 1;
480
481	pCapELE->TxSTBC			= 1;
482	pCapELE->RxSTBC			= 0;
483	pCapELE->DelayBA		= 0;
484	pCapELE->MaxAMSDUSize = (MAX_RECEIVE_BUFFER_SIZE >= 7935) ? 1 : 0;
485	pCapELE->DssCCk = ((pHT->bRegBW40MHz) ? (pHT->bRegSuppCCK ? 1 : 0) : 0);
486	pCapELE->PSMP = 0;
487	pCapELE->LSigTxopProtect = 0;
488
489
490	RTLLIB_DEBUG(RTLLIB_DL_HT, "TX HT cap/info ele BW=%d MaxAMSDUSize:%d "
491		     "DssCCk:%d\n", pCapELE->ChlWidth, pCapELE->MaxAMSDUSize,
492		     pCapELE->DssCCk);
493
494	if (IsEncrypt) {
495		pCapELE->MPDUDensity	= 7;
496		pCapELE->MaxRxAMPDUFactor	= 2;
497	} else {
498		pCapELE->MaxRxAMPDUFactor	= 3;
499		pCapELE->MPDUDensity	= 0;
500	}
501
502	memcpy(pCapELE->MCS, ieee->Regdot11HTOperationalRateSet, 16);
503	memset(&pCapELE->ExtHTCapInfo, 0, 2);
504	memset(pCapELE->TxBFCap, 0, 4);
505
506	pCapELE->ASCap = 0;
507
508	if (bAssoc) {
509		if (pHT->IOTAction & HT_IOT_ACT_DISABLE_MCS15)
510			pCapELE->MCS[1] &= 0x7f;
511
512		if (pHT->IOTAction & HT_IOT_ACT_DISABLE_MCS14)
513			pCapELE->MCS[1] &= 0xbf;
514
515		if (pHT->IOTAction & HT_IOT_ACT_DISABLE_ALL_2SS)
516			pCapELE->MCS[1] &= 0x00;
517
518		if (pHT->IOTAction & HT_IOT_ACT_DISABLE_RX_40MHZ_SHORT_GI)
519			pCapELE->ShortGI40Mhz		= 0;
520
521		if (ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev)) {
522			pCapELE->ChlWidth = 0;
523			pCapELE->MCS[1] = 0;
524		}
525	}
526}
527
528void HTConstructInfoElement(struct rtllib_device *ieee, u8 *posHTInfo,
529			    u8 *len, u8 IsEncrypt)
530{
531	struct rt_hi_throughput *pHT = ieee->pHTInfo;
532	struct ht_info_ele *pHTInfoEle = (struct ht_info_ele *)posHTInfo;
533
534	if ((posHTInfo == NULL) || (pHTInfoEle == NULL)) {
535		RTLLIB_DEBUG(RTLLIB_DL_ERR, "posHTInfo or pHTInfoEle can't be "
536			     "null in HTConstructInfoElement()\n");
537		return;
538	}
539
540	memset(posHTInfo, 0, *len);
541	if ((ieee->iw_mode == IW_MODE_ADHOC) ||
542	    (ieee->iw_mode == IW_MODE_MASTER)) {
543		pHTInfoEle->ControlChl	= ieee->current_network.channel;
544		pHTInfoEle->ExtChlOffset = ((pHT->bRegBW40MHz == false) ?
545					    HT_EXTCHNL_OFFSET_NO_EXT :
546					    (ieee->current_network.channel <= 6)
547					    ? HT_EXTCHNL_OFFSET_UPPER :
548					    HT_EXTCHNL_OFFSET_LOWER);
549		pHTInfoEle->RecommemdedTxWidth	= pHT->bRegBW40MHz;
550		pHTInfoEle->RIFS			= 0;
551		pHTInfoEle->PSMPAccessOnly		= 0;
552		pHTInfoEle->SrvIntGranularity		= 0;
553		pHTInfoEle->OptMode			= pHT->CurrentOpMode;
554		pHTInfoEle->NonGFDevPresent		= 0;
555		pHTInfoEle->DualBeacon			= 0;
556		pHTInfoEle->SecondaryBeacon		= 0;
557		pHTInfoEle->LSigTxopProtectFull		= 0;
558		pHTInfoEle->PcoActive			= 0;
559		pHTInfoEle->PcoPhase			= 0;
560
561		memset(pHTInfoEle->BasicMSC, 0, 16);
562
563
564		*len = 22 + 2;
565
566	} else {
567		*len = 0;
568	}
569}
570
571void HTConstructRT2RTAggElement(struct rtllib_device *ieee, u8 *posRT2RTAgg,
572				u8 *len)
573{
574	if (posRT2RTAgg == NULL) {
575		RTLLIB_DEBUG(RTLLIB_DL_ERR, "posRT2RTAgg can't be null in "
576			     "HTConstructRT2RTAggElement()\n");
577		return;
578	}
579	memset(posRT2RTAgg, 0, *len);
580	*posRT2RTAgg++ = 0x00;
581	*posRT2RTAgg++ = 0xe0;
582	*posRT2RTAgg++ = 0x4c;
583	*posRT2RTAgg++ = 0x02;
584	*posRT2RTAgg++ = 0x01;
585
586	*posRT2RTAgg = 0x30;
587
588	if (ieee->bSupportRemoteWakeUp)
589		*posRT2RTAgg |= RT_HT_CAP_USE_WOW;
590
591	*len = 6 + 2;
592}
593
594static u8 HT_PickMCSRate(struct rtllib_device *ieee, u8 *pOperateMCS)
595{
596	u8 i;
597
598	if (pOperateMCS == NULL) {
599		RTLLIB_DEBUG(RTLLIB_DL_ERR, "pOperateMCS can't be null"
600			     " in HT_PickMCSRate()\n");
601		return false;
602	}
603
604	switch (ieee->mode) {
605	case IEEE_A:
606	case IEEE_B:
607	case IEEE_G:
608		for (i = 0; i <= 15; i++)
609			pOperateMCS[i] = 0;
610		break;
611	case IEEE_N_24G:
612	case IEEE_N_5G:
613		pOperateMCS[0] &= RATE_ADPT_1SS_MASK;
614		pOperateMCS[1] &= RATE_ADPT_2SS_MASK;
615		pOperateMCS[3] &= RATE_ADPT_MCS32_MASK;
616		break;
617	default:
618		break;
619
620	}
621
622	return true;
623}
624
625u8 HTGetHighestMCSRate(struct rtllib_device *ieee, u8 *pMCSRateSet,
626		       u8 *pMCSFilter)
627{
628	u8		i, j;
629	u8		bitMap;
630	u8		mcsRate = 0;
631	u8		availableMcsRate[16];
632
633	if (pMCSRateSet == NULL || pMCSFilter == NULL) {
634		RTLLIB_DEBUG(RTLLIB_DL_ERR, "pMCSRateSet or pMCSFilter can't "
635			     "be null in HTGetHighestMCSRate()\n");
636		return false;
637	}
638	for (i = 0; i < 16; i++)
639		availableMcsRate[i] = pMCSRateSet[i] & pMCSFilter[i];
640
641	for (i = 0; i < 16; i++) {
642		if (availableMcsRate[i] != 0)
643			break;
644	}
645	if (i == 16)
646		return false;
647
648	for (i = 0; i < 16; i++) {
649		if (availableMcsRate[i] != 0) {
650			bitMap = availableMcsRate[i];
651			for (j = 0; j < 8; j++) {
652				if ((bitMap%2) != 0) {
653					if (HTMcsToDataRate(ieee, (8*i+j)) >
654					    HTMcsToDataRate(ieee, mcsRate))
655						mcsRate = (8*i+j);
656				}
657				bitMap = bitMap>>1;
658			}
659		}
660	}
661	return mcsRate | 0x80;
662}
663
664u8 HTFilterMCSRate(struct rtllib_device *ieee, u8 *pSupportMCS, u8 *pOperateMCS)
665{
666
667	u8 i;
668
669	for (i = 0; i <= 15; i++)
670		pOperateMCS[i] = ieee->Regdot11TxHTOperationalRateSet[i] &
671				 pSupportMCS[i];
672
673	HT_PickMCSRate(ieee, pOperateMCS);
674
675	if (ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev))
676		pOperateMCS[1] = 0;
677
678	for (i = 2; i <= 15; i++)
679		pOperateMCS[i] = 0;
680
681	return true;
682}
683
684void HTSetConnectBwMode(struct rtllib_device *ieee,
685			enum ht_channel_width Bandwidth,
686			enum ht_extchnl_offset Offset);
687
688void HTOnAssocRsp(struct rtllib_device *ieee)
689{
690	struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
691	struct ht_capab_ele *pPeerHTCap = NULL;
692	struct ht_info_ele *pPeerHTInfo = NULL;
693	u16 nMaxAMSDUSize = 0;
694	u8 *pMcsFilter = NULL;
695
696	static u8 EWC11NHTCap[] = {0x00, 0x90, 0x4c, 0x33};
697	static u8 EWC11NHTInfo[] = {0x00, 0x90, 0x4c, 0x34};
698
699	if (pHTInfo->bCurrentHTSupport == false) {
700		RTLLIB_DEBUG(RTLLIB_DL_ERR, "<=== HTOnAssocRsp(): "
701			     "HT_DISABLE\n");
702		return;
703	}
704	RTLLIB_DEBUG(RTLLIB_DL_HT, "===> HTOnAssocRsp_wq(): HT_ENABLE\n");
705
706	if (!memcmp(pHTInfo->PeerHTCapBuf, EWC11NHTCap, sizeof(EWC11NHTCap)))
707		pPeerHTCap = (struct ht_capab_ele *)(&pHTInfo->PeerHTCapBuf[4]);
708	else
709		pPeerHTCap = (struct ht_capab_ele *)(pHTInfo->PeerHTCapBuf);
710
711	if (!memcmp(pHTInfo->PeerHTInfoBuf, EWC11NHTInfo, sizeof(EWC11NHTInfo)))
712		pPeerHTInfo = (struct ht_info_ele *)
713			     (&pHTInfo->PeerHTInfoBuf[4]);
714	else
715		pPeerHTInfo = (struct ht_info_ele *)(pHTInfo->PeerHTInfoBuf);
716
717	RTLLIB_DEBUG_DATA(RTLLIB_DL_DATA | RTLLIB_DL_HT, pPeerHTCap,
718			  sizeof(struct ht_capab_ele));
719	HTSetConnectBwMode(ieee, (enum ht_channel_width)(pPeerHTCap->ChlWidth),
720			  (enum ht_extchnl_offset)(pPeerHTInfo->ExtChlOffset));
721	pHTInfo->bCurTxBW40MHz = ((pPeerHTInfo->RecommemdedTxWidth == 1) ?
722				 true : false);
723
724	pHTInfo->bCurShortGI20MHz = ((pHTInfo->bRegShortGI20MHz) ?
725				    ((pPeerHTCap->ShortGI20Mhz == 1) ?
726				    true : false) : false);
727	pHTInfo->bCurShortGI40MHz = ((pHTInfo->bRegShortGI40MHz) ?
728				     ((pPeerHTCap->ShortGI40Mhz == 1) ?
729				     true : false) : false);
730
731	pHTInfo->bCurSuppCCK = ((pHTInfo->bRegSuppCCK) ?
732			       ((pPeerHTCap->DssCCk == 1) ? true :
733			       false) : false);
734
735
736	pHTInfo->bCurrent_AMSDU_Support = pHTInfo->bAMSDU_Support;
737
738	nMaxAMSDUSize = (pPeerHTCap->MaxAMSDUSize == 0) ? 3839 : 7935;
739
740	if (pHTInfo->nAMSDU_MaxSize > nMaxAMSDUSize)
741		pHTInfo->nCurrent_AMSDU_MaxSize = nMaxAMSDUSize;
742	else
743		pHTInfo->nCurrent_AMSDU_MaxSize = pHTInfo->nAMSDU_MaxSize;
744
745	pHTInfo->bCurrentAMPDUEnable = pHTInfo->bAMPDUEnable;
746	if (ieee->rtllib_ap_sec_type &&
747	   (ieee->rtllib_ap_sec_type(ieee)&(SEC_ALG_WEP|SEC_ALG_TKIP))) {
748		if ((pHTInfo->IOTPeer == HT_IOT_PEER_ATHEROS) ||
749				(pHTInfo->IOTPeer == HT_IOT_PEER_UNKNOWN))
750			pHTInfo->bCurrentAMPDUEnable = false;
751	}
752
753	if (!pHTInfo->bRegRT2RTAggregation) {
754		if (pHTInfo->AMPDU_Factor > pPeerHTCap->MaxRxAMPDUFactor)
755			pHTInfo->CurrentAMPDUFactor =
756						 pPeerHTCap->MaxRxAMPDUFactor;
757		else
758			pHTInfo->CurrentAMPDUFactor = pHTInfo->AMPDU_Factor;
759
760	} else {
761		if (ieee->current_network.bssht.bdRT2RTAggregation) {
762			if (ieee->pairwise_key_type != KEY_TYPE_NA)
763				pHTInfo->CurrentAMPDUFactor =
764						 pPeerHTCap->MaxRxAMPDUFactor;
765			else
766				pHTInfo->CurrentAMPDUFactor = HT_AGG_SIZE_64K;
767		} else {
768			if (pPeerHTCap->MaxRxAMPDUFactor < HT_AGG_SIZE_32K)
769				pHTInfo->CurrentAMPDUFactor =
770						 pPeerHTCap->MaxRxAMPDUFactor;
771			else
772				pHTInfo->CurrentAMPDUFactor = HT_AGG_SIZE_32K;
773		}
774	}
775	if (pHTInfo->MPDU_Density > pPeerHTCap->MPDUDensity)
776		pHTInfo->CurrentMPDUDensity = pHTInfo->MPDU_Density;
777	else
778		pHTInfo->CurrentMPDUDensity = pPeerHTCap->MPDUDensity;
779	if (pHTInfo->IOTAction & HT_IOT_ACT_TX_USE_AMSDU_8K) {
780		pHTInfo->bCurrentAMPDUEnable = false;
781		pHTInfo->ForcedAMSDUMode = HT_AGG_FORCE_ENABLE;
782		pHTInfo->ForcedAMSDUMaxSize = 7935;
783	}
784	pHTInfo->bCurRxReorderEnable = pHTInfo->bRegRxReorderEnable;
785
786	if (pPeerHTCap->MCS[0] == 0)
787		pPeerHTCap->MCS[0] = 0xff;
788
789	HTIOTActDetermineRaFunc(ieee, ((pPeerHTCap->MCS[1]) != 0));
790
791	HTFilterMCSRate(ieee, pPeerHTCap->MCS, ieee->dot11HTOperationalRateSet);
792
793	pHTInfo->PeerMimoPs = pPeerHTCap->MimoPwrSave;
794	if (pHTInfo->PeerMimoPs == MIMO_PS_STATIC)
795		pMcsFilter = MCS_FILTER_1SS;
796	else
797		pMcsFilter = MCS_FILTER_ALL;
798	ieee->HTHighestOperaRate = HTGetHighestMCSRate(ieee,
799				   ieee->dot11HTOperationalRateSet, pMcsFilter);
800	ieee->HTCurrentOperaRate = ieee->HTHighestOperaRate;
801
802	pHTInfo->CurrentOpMode = pPeerHTInfo->OptMode;
803}
804
805void HTInitializeHTInfo(struct rtllib_device *ieee)
806{
807	struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
808
809	RTLLIB_DEBUG(RTLLIB_DL_HT, "===========>%s()\n", __func__);
810	pHTInfo->bCurrentHTSupport = false;
811
812	pHTInfo->bCurBW40MHz = false;
813	pHTInfo->bCurTxBW40MHz = false;
814
815	pHTInfo->bCurShortGI20MHz = false;
816	pHTInfo->bCurShortGI40MHz = false;
817	pHTInfo->bForcedShortGI = false;
818
819	pHTInfo->bCurSuppCCK = true;
820
821	pHTInfo->bCurrent_AMSDU_Support = false;
822	pHTInfo->nCurrent_AMSDU_MaxSize = pHTInfo->nAMSDU_MaxSize;
823	pHTInfo->CurrentMPDUDensity = pHTInfo->MPDU_Density;
824	pHTInfo->CurrentAMPDUFactor = pHTInfo->AMPDU_Factor;
825
826	memset((void *)(&(pHTInfo->SelfHTCap)), 0,
827		sizeof(pHTInfo->SelfHTCap));
828	memset((void *)(&(pHTInfo->SelfHTInfo)), 0,
829		sizeof(pHTInfo->SelfHTInfo));
830	memset((void *)(&(pHTInfo->PeerHTCapBuf)), 0,
831		sizeof(pHTInfo->PeerHTCapBuf));
832	memset((void *)(&(pHTInfo->PeerHTInfoBuf)), 0,
833		sizeof(pHTInfo->PeerHTInfoBuf));
834
835	pHTInfo->bSwBwInProgress = false;
836	pHTInfo->ChnlOp = CHNLOP_NONE;
837
838	pHTInfo->ePeerHTSpecVer = HT_SPEC_VER_IEEE;
839
840	pHTInfo->bCurrentRT2RTAggregation = false;
841	pHTInfo->bCurrentRT2RTLongSlotTime = false;
842	pHTInfo->RT2RT_HT_Mode = (enum rt_ht_capability)0;
843
844	pHTInfo->IOTPeer = 0;
845	pHTInfo->IOTAction = 0;
846	pHTInfo->IOTRaFunc = 0;
847
848	{
849		u8 *RegHTSuppRateSets = &(ieee->RegHTSuppRateSet[0]);
850
851		RegHTSuppRateSets[0] = 0xFF;
852		RegHTSuppRateSets[1] = 0xFF;
853		RegHTSuppRateSets[4] = 0x01;
854	}
855}
856
857void HTInitializeBssDesc(struct bss_ht *pBssHT)
858{
859
860	pBssHT->bdSupportHT = false;
861	memset(pBssHT->bdHTCapBuf, 0, sizeof(pBssHT->bdHTCapBuf));
862	pBssHT->bdHTCapLen = 0;
863	memset(pBssHT->bdHTInfoBuf, 0, sizeof(pBssHT->bdHTInfoBuf));
864	pBssHT->bdHTInfoLen = 0;
865
866	pBssHT->bdHTSpecVer = HT_SPEC_VER_IEEE;
867
868	pBssHT->bdRT2RTAggregation = false;
869	pBssHT->bdRT2RTLongSlotTime = false;
870	pBssHT->RT2RT_HT_Mode = (enum rt_ht_capability)0;
871}
872
873void HTResetSelfAndSavePeerSetting(struct rtllib_device *ieee,
874				   struct rtllib_network *pNetwork)
875{
876	struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
877	u8	bIOTAction = 0;
878
879	RTLLIB_DEBUG(RTLLIB_DL_HT, "==============>%s()\n", __func__);
880	/* unmark bEnableHT flag here is the same reason why unmarked in
881	 * function rtllib_softmac_new_net. WB 2008.09.10*/
882	if (pNetwork->bssht.bdSupportHT) {
883		pHTInfo->bCurrentHTSupport = true;
884		pHTInfo->ePeerHTSpecVer = pNetwork->bssht.bdHTSpecVer;
885
886		if (pNetwork->bssht.bdHTCapLen > 0 &&
887		    pNetwork->bssht.bdHTCapLen <= sizeof(pHTInfo->PeerHTCapBuf))
888			memcpy(pHTInfo->PeerHTCapBuf,
889			       pNetwork->bssht.bdHTCapBuf,
890			       pNetwork->bssht.bdHTCapLen);
891
892		if (pNetwork->bssht.bdHTInfoLen > 0 &&
893		    pNetwork->bssht.bdHTInfoLen <=
894		    sizeof(pHTInfo->PeerHTInfoBuf))
895			memcpy(pHTInfo->PeerHTInfoBuf,
896			       pNetwork->bssht.bdHTInfoBuf,
897			       pNetwork->bssht.bdHTInfoLen);
898
899		if (pHTInfo->bRegRT2RTAggregation) {
900			pHTInfo->bCurrentRT2RTAggregation =
901				 pNetwork->bssht.bdRT2RTAggregation;
902			pHTInfo->bCurrentRT2RTLongSlotTime =
903				 pNetwork->bssht.bdRT2RTLongSlotTime;
904			pHTInfo->RT2RT_HT_Mode = pNetwork->bssht.RT2RT_HT_Mode;
905		} else {
906			pHTInfo->bCurrentRT2RTAggregation = false;
907			pHTInfo->bCurrentRT2RTLongSlotTime = false;
908			pHTInfo->RT2RT_HT_Mode = (enum rt_ht_capability)0;
909		}
910
911		HTIOTPeerDetermine(ieee);
912
913		pHTInfo->IOTAction = 0;
914		bIOTAction = HTIOTActIsDisableMCS14(ieee, pNetwork->bssid);
915		if (bIOTAction)
916			pHTInfo->IOTAction |= HT_IOT_ACT_DISABLE_MCS14;
917
918		bIOTAction = HTIOTActIsDisableMCS15(ieee);
919		if (bIOTAction)
920			pHTInfo->IOTAction |= HT_IOT_ACT_DISABLE_MCS15;
921
922		bIOTAction = HTIOTActIsDisableMCSTwoSpatialStream(ieee);
923		if (bIOTAction)
924			pHTInfo->IOTAction |= HT_IOT_ACT_DISABLE_ALL_2SS;
925
926
927		bIOTAction = HTIOTActIsDisableEDCATurbo(ieee, pNetwork->bssid);
928		if (bIOTAction)
929			pHTInfo->IOTAction |= HT_IOT_ACT_DISABLE_EDCA_TURBO;
930
931		bIOTAction = HTIOTActIsMgntUseCCK6M(ieee, pNetwork);
932		if (bIOTAction)
933			pHTInfo->IOTAction |= HT_IOT_ACT_MGNT_USE_CCK_6M;
934		bIOTAction = HTIOTActIsCCDFsync(ieee);
935		if (bIOTAction)
936			pHTInfo->IOTAction |= HT_IOT_ACT_CDD_FSYNC;
937	} else {
938		pHTInfo->bCurrentHTSupport = false;
939		pHTInfo->bCurrentRT2RTAggregation = false;
940		pHTInfo->bCurrentRT2RTLongSlotTime = false;
941		pHTInfo->RT2RT_HT_Mode = (enum rt_ht_capability)0;
942
943		pHTInfo->IOTAction = 0;
944		pHTInfo->IOTRaFunc = 0;
945	}
946}
947
948void HT_update_self_and_peer_setting(struct rtllib_device *ieee,
949				     struct rtllib_network *pNetwork)
950{
951	struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
952	struct ht_info_ele *pPeerHTInfo =
953		 (struct ht_info_ele *)pNetwork->bssht.bdHTInfoBuf;
954
955	if (pHTInfo->bCurrentHTSupport) {
956		if (pNetwork->bssht.bdHTInfoLen != 0)
957			pHTInfo->CurrentOpMode = pPeerHTInfo->OptMode;
958	}
959}
960EXPORT_SYMBOL(HT_update_self_and_peer_setting);
961
962void HTUseDefaultSetting(struct rtllib_device *ieee)
963{
964	struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
965
966	if (pHTInfo->bEnableHT) {
967		pHTInfo->bCurrentHTSupport = true;
968		pHTInfo->bCurSuppCCK = pHTInfo->bRegSuppCCK;
969
970		pHTInfo->bCurBW40MHz = pHTInfo->bRegBW40MHz;
971		pHTInfo->bCurShortGI20MHz = pHTInfo->bRegShortGI20MHz;
972
973		pHTInfo->bCurShortGI40MHz = pHTInfo->bRegShortGI40MHz;
974
975		if (ieee->iw_mode == IW_MODE_ADHOC)
976			ieee->current_network.qos_data.active =
977				 ieee->current_network.qos_data.supported;
978		pHTInfo->bCurrent_AMSDU_Support = pHTInfo->bAMSDU_Support;
979		pHTInfo->nCurrent_AMSDU_MaxSize = pHTInfo->nAMSDU_MaxSize;
980
981		pHTInfo->bCurrentAMPDUEnable = pHTInfo->bAMPDUEnable;
982		pHTInfo->CurrentAMPDUFactor = pHTInfo->AMPDU_Factor;
983
984		pHTInfo->CurrentMPDUDensity = pHTInfo->CurrentMPDUDensity;
985
986		HTFilterMCSRate(ieee, ieee->Regdot11TxHTOperationalRateSet,
987				ieee->dot11HTOperationalRateSet);
988		ieee->HTHighestOperaRate = HTGetHighestMCSRate(ieee,
989					   ieee->dot11HTOperationalRateSet,
990					   MCS_FILTER_ALL);
991		ieee->HTCurrentOperaRate = ieee->HTHighestOperaRate;
992
993	} else {
994		pHTInfo->bCurrentHTSupport = false;
995	}
996}
997
998u8 HTCCheck(struct rtllib_device *ieee, u8 *pFrame)
999{
1000	if (ieee->pHTInfo->bCurrentHTSupport) {
1001		if ((IsQoSDataFrame(pFrame) && Frame_Order(pFrame)) == 1) {
1002			RTLLIB_DEBUG(RTLLIB_DL_HT, "HT CONTROL FILED "
1003				     "EXIST!!\n");
1004			return true;
1005		}
1006	}
1007	return false;
1008}
1009
1010static void HTSetConnectBwModeCallback(struct rtllib_device *ieee)
1011{
1012	struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
1013
1014	RTLLIB_DEBUG(RTLLIB_DL_HT, "======>%s()\n", __func__);
1015	if (pHTInfo->bCurBW40MHz) {
1016		if (pHTInfo->CurSTAExtChnlOffset == HT_EXTCHNL_OFFSET_UPPER)
1017			ieee->set_chan(ieee->dev,
1018				       ieee->current_network.channel + 2);
1019		else if (pHTInfo->CurSTAExtChnlOffset ==
1020			 HT_EXTCHNL_OFFSET_LOWER)
1021			ieee->set_chan(ieee->dev,
1022				       ieee->current_network.channel - 2);
1023		else
1024			ieee->set_chan(ieee->dev,
1025				       ieee->current_network.channel);
1026
1027		ieee->SetBWModeHandler(ieee->dev, HT_CHANNEL_WIDTH_20_40,
1028				       pHTInfo->CurSTAExtChnlOffset);
1029	} else {
1030		ieee->set_chan(ieee->dev, ieee->current_network.channel);
1031		ieee->SetBWModeHandler(ieee->dev, HT_CHANNEL_WIDTH_20,
1032				       HT_EXTCHNL_OFFSET_NO_EXT);
1033	}
1034
1035	pHTInfo->bSwBwInProgress = false;
1036}
1037
1038void HTSetConnectBwMode(struct rtllib_device *ieee,
1039			enum ht_channel_width Bandwidth,
1040			enum ht_extchnl_offset Offset)
1041{
1042	struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
1043
1044	if (pHTInfo->bRegBW40MHz == false)
1045		return;
1046
1047	if (ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev))
1048		Bandwidth = HT_CHANNEL_WIDTH_20;
1049
1050	if (pHTInfo->bSwBwInProgress) {
1051		pr_info("%s: bSwBwInProgress!!\n", __func__);
1052		return;
1053	}
1054	if (Bandwidth == HT_CHANNEL_WIDTH_20_40) {
1055		if (ieee->current_network.channel < 2 &&
1056		    Offset == HT_EXTCHNL_OFFSET_LOWER)
1057			Offset = HT_EXTCHNL_OFFSET_NO_EXT;
1058		if (Offset == HT_EXTCHNL_OFFSET_UPPER ||
1059		    Offset == HT_EXTCHNL_OFFSET_LOWER) {
1060			pHTInfo->bCurBW40MHz = true;
1061			pHTInfo->CurSTAExtChnlOffset = Offset;
1062		} else {
1063			pHTInfo->bCurBW40MHz = false;
1064			pHTInfo->CurSTAExtChnlOffset = HT_EXTCHNL_OFFSET_NO_EXT;
1065		}
1066	} else {
1067		pHTInfo->bCurBW40MHz = false;
1068		pHTInfo->CurSTAExtChnlOffset = HT_EXTCHNL_OFFSET_NO_EXT;
1069	}
1070
1071	pr_info("%s():pHTInfo->bCurBW40MHz:%x\n", __func__,
1072	       pHTInfo->bCurBW40MHz);
1073
1074	pHTInfo->bSwBwInProgress = true;
1075
1076	HTSetConnectBwModeCallback(ieee);
1077}
1078