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RT-AC56 3.0.0.4.374.37 core
[tomato.git] / release / src-rt-6.x.4708 / linux / linux-2.6.36 / drivers / staging / rtl8192e / ieee80211 / rtl819x_HTProc.c
blob17127b67a398e089cf222a2a1deb96695e563993
1
2 //As this function is mainly ported from Windows driver, so leave the name little changed. If any confusion caused, tell me. Created by WB. 2008.05.08
3 #include "ieee80211.h"
4 #include "rtl819x_HT.h"
5 u8 MCS_FILTER_ALL[16] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x1f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
6
7 u8 MCS_FILTER_1SS[16] = {0xff, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
8
9 u16 MCS_DATA_RATE[2][2][77] =
10 { { {13, 26, 39, 52, 78, 104, 117, 130, 26, 52, 78 ,104, 156, 208, 234, 260,
11 39, 78, 117, 234, 312, 351, 390, 52, 104, 156, 208, 312, 416, 468, 520,
12 0, 78, 104, 130, 117, 156, 195, 104, 130, 130, 156, 182, 182, 208, 156, 195,
13 195, 234, 273, 273, 312, 130, 156, 181, 156, 181, 208, 234, 208, 234, 260, 260,
14 286, 195, 234, 273, 234, 273, 312, 351, 312, 351, 390, 390, 429}, // Long GI, 20MHz
15 {14, 29, 43, 58, 87, 116, 130, 144, 29, 58, 87, 116, 173, 231, 260, 289,
16 43, 87, 130, 173, 260, 347, 390, 433, 58, 116, 173, 231, 347, 462, 520, 578,
17 0, 87, 116, 144, 130, 173, 217, 116, 144, 144, 173, 202, 202, 231, 173, 217,
18 217, 260, 303, 303, 347, 144, 173, 202, 173, 202, 231, 260, 231, 260, 289, 289,
19 318, 217, 260, 303, 260, 303, 347, 390, 347, 390, 433, 433, 477} }, // Short GI, 20MHz
20 { {27, 54, 81, 108, 162, 216, 243, 270, 54, 108, 162, 216, 324, 432, 486, 540,
21 81, 162, 243, 324, 486, 648, 729, 810, 108, 216, 324, 432, 648, 864, 972, 1080,
22 12, 162, 216, 270, 243, 324, 405, 216, 270, 270, 324, 378, 378, 432, 324, 405,
23 405, 486, 567, 567, 648, 270, 324, 378, 324, 378, 432, 486, 432, 486, 540, 540,
24 594, 405, 486, 567, 486, 567, 648, 729, 648, 729, 810, 810, 891}, // Long GI, 40MHz
25 {30, 60, 90, 120, 180, 240, 270, 300, 60, 120, 180, 240, 360, 480, 540, 600,
26 90, 180, 270, 360, 540, 720, 810, 900, 120, 240, 360, 480, 720, 960, 1080, 1200,
27 13, 180, 240, 300, 270, 360, 450, 240, 300, 300, 360, 420, 420, 480, 360, 450,
28 450, 540, 630, 630, 720, 300, 360, 420, 360, 420, 480, 540, 480, 540, 600, 600,
29 660, 450, 540, 630, 540, 630, 720, 810, 720, 810, 900, 900, 990} } // Short GI, 40MHz
30 };
31
32 static u8 UNKNOWN_BORADCOM[3] = {0x00, 0x14, 0xbf};
33 static u8 LINKSYSWRT330_LINKSYSWRT300_BROADCOM[3] = {0x00, 0x1a, 0x70};
34 static u8 LINKSYSWRT350_LINKSYSWRT150_BROADCOM[3] = {0x00, 0x1d, 0x7e};
35 //static u8 NETGEAR834Bv2_BROADCOM[3] = {0x00, 0x1b, 0x2f};
36 static u8 BELKINF5D8233V1_RALINK[3] = {0x00, 0x17, 0x3f}; //cosa 03202008
37 static u8 BELKINF5D82334V3_RALINK[3] = {0x00, 0x1c, 0xdf};
38 static u8 PCI_RALINK[3] = {0x00, 0x90, 0xcc};
39 static u8 EDIMAX_RALINK[3] = {0x00, 0x0e, 0x2e};
40 static u8 AIRLINK_RALINK[3] = {0x00, 0x18, 0x02};
41 static u8 DLINK_ATHEROS[3] = {0x00, 0x1c, 0xf0};
42 static u8 CISCO_BROADCOM[3] = {0x00, 0x17, 0x94};
43 static u8 LINKSYS_MARVELL_4400N[3] = {0x00, 0x14, 0xa4};
44
45 // 2008/04/01 MH For Cisco G mode RX TP We need to change FW duration. Should we put the
46 // code in other place??
47 //static u8 WIFI_CISCO_G_AP[3] = {0x00, 0x40, 0x96};
48 /********************************************************************************************************************
49 *function: This function update default settings in pHTInfo structure
50 * input: PRT_HIGH_THROUGHPUT pHTInfo
51 * output: none
52 * return: none
53 * notice: These value need be modified if any changes.
54 * *****************************************************************************************************************/
55 void HTUpdateDefaultSetting(struct ieee80211_device* ieee)
56 {
57 PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo;
58 //const typeof( ((struct ieee80211_device *)0)->pHTInfo ) *__mptr = &pHTInfo;
59
60 //printk("pHTinfo:%p, &pHTinfo:%p, mptr:%p, offsetof:%x\n", pHTInfo, &pHTInfo, __mptr, offsetof(struct ieee80211_device, pHTInfo));
61 //printk("===>ieee:%p,\n", ieee);
62 // ShortGI support
63 pHTInfo->bRegShortGI20MHz= 1;
64 pHTInfo->bRegShortGI40MHz= 1;
65
66 // 40MHz channel support
67 pHTInfo->bRegBW40MHz = 1;
68
69 // CCK rate support in 40MHz channel
70 if(pHTInfo->bRegBW40MHz)
71 pHTInfo->bRegSuppCCK = 1;
72 else
73 pHTInfo->bRegSuppCCK = true;
74
75 // AMSDU related
76 pHTInfo->nAMSDU_MaxSize = 7935UL;
77 pHTInfo->bAMSDU_Support = 0;
78
79 // AMPDU related
80 pHTInfo->bAMPDUEnable = 1;
81 pHTInfo->AMPDU_Factor = 2; //// 0: 2n13(8K), 1:2n14(16K), 2:2n15(32K), 3:2n16(64k)
82 pHTInfo->MPDU_Density = 0;// 0: No restriction, 1: 1/8usec, 2: 1/4usec, 3: 1/2usec, 4: 1usec, 5: 2usec, 6: 4usec, 7:8usec
83
84 // MIMO Power Save
85 pHTInfo->SelfMimoPs = 3;// 0: Static Mimo Ps, 1: Dynamic Mimo Ps, 3: No Limitation, 2: Reserved(Set to 3 automatically.)
86 if(pHTInfo->SelfMimoPs == 2)
87 pHTInfo->SelfMimoPs = 3;
88 // 8190 only. Assign rate operation mode to firmware
89 ieee->bTxDisableRateFallBack = 0;
90 ieee->bTxUseDriverAssingedRate = 0;
91
92 #ifdef TO_DO_LIST
93 // 8190 only. Assign duration operation mode to firmware
94 pMgntInfo->bTxEnableFwCalcDur = (BOOLEAN)pNdisCommon->bRegTxEnableFwCalcDur;
95 #endif
96 // 8190 only, Realtek proprietary aggregation mode
97 // Set MPDUDensity=2, 1: Set MPDUDensity=2(32k) for Realtek AP and set MPDUDensity=0(8k) for others
98 pHTInfo->bRegRT2RTAggregation = 1;//0: Set MPDUDensity=2, 1: Set MPDUDensity=2(32k) for Realtek AP and set MPDUDensity=0(8k) for others
99
100 // For Rx Reorder Control
101 pHTInfo->bRegRxReorderEnable = 1;
102 pHTInfo->RxReorderWinSize = 64;
103 pHTInfo->RxReorderPendingTime = 30;
104
105 #ifdef USB_TX_DRIVER_AGGREGATION_ENABLE
106 pHTInfo->UsbTxAggrNum = 4;
107 #endif
108 #ifdef USB_RX_AGGREGATION_SUPPORT
109 pHTInfo->UsbRxFwAggrEn = 1;
110 pHTInfo->UsbRxFwAggrPageNum = 24;
111 pHTInfo->UsbRxFwAggrPacketNum = 8;
112 pHTInfo->UsbRxFwAggrTimeout = 16; ////usb rx FW aggregation timeout threshold.It's in units of 64us
113 #endif
114
115
116 }
117 /********************************************************************************************************************
118 *function: This function print out each field on HT capability IE mainly from (Beacon/ProbeRsp/AssocReq)
119 * input: u8* CapIE //Capability IE to be printed out
120 * u8* TitleString //mainly print out caller function
121 * output: none
122 * return: none
123 * notice: Driver should not print out this message by default.
124 * *****************************************************************************************************************/
125 void HTDebugHTCapability(u8* CapIE, u8* TitleString )
126 {
127
128 static u8 EWC11NHTCap[] = {0x00, 0x90, 0x4c, 0x33}; // For 11n EWC definition, 2007.07.17, by Emily
129 PHT_CAPABILITY_ELE pCapELE;
130
131 if(!memcmp(CapIE, EWC11NHTCap, sizeof(EWC11NHTCap)))
132 {
133 //EWC IE
134 IEEE80211_DEBUG(IEEE80211_DL_HT, "EWC IE in %s()\n", __FUNCTION__);
135 pCapELE = (PHT_CAPABILITY_ELE)(&CapIE[4]);
136 }else
137 pCapELE = (PHT_CAPABILITY_ELE)(&CapIE[0]);
138
139 IEEE80211_DEBUG(IEEE80211_DL_HT, "<Log HT Capability>. Called by %s\n", TitleString );
140
141 IEEE80211_DEBUG(IEEE80211_DL_HT, "\tSupported Channel Width = %s\n", (pCapELE->ChlWidth)?"20MHz": "20/40MHz");
142 IEEE80211_DEBUG(IEEE80211_DL_HT, "\tSupport Short GI for 20M = %s\n", (pCapELE->ShortGI20Mhz)?"YES": "NO");
143 IEEE80211_DEBUG(IEEE80211_DL_HT, "\tSupport Short GI for 40M = %s\n", (pCapELE->ShortGI40Mhz)?"YES": "NO");
144 IEEE80211_DEBUG(IEEE80211_DL_HT, "\tSupport TX STBC = %s\n", (pCapELE->TxSTBC)?"YES": "NO");
145 IEEE80211_DEBUG(IEEE80211_DL_HT, "\tMax AMSDU Size = %s\n", (pCapELE->MaxAMSDUSize)?"3839": "7935");
146 IEEE80211_DEBUG(IEEE80211_DL_HT, "\tSupport CCK in 20/40 mode = %s\n", (pCapELE->DssCCk)?"YES": "NO");
147 IEEE80211_DEBUG(IEEE80211_DL_HT, "\tMax AMPDU Factor = %d\n", pCapELE->MaxRxAMPDUFactor);
148 IEEE80211_DEBUG(IEEE80211_DL_HT, "\tMPDU Density = %d\n", pCapELE->MPDUDensity);
149 IEEE80211_DEBUG(IEEE80211_DL_HT, "\tMCS Rate Set = [%x][%x][%x][%x][%x]\n", pCapELE->MCS[0],\
150 pCapELE->MCS[1], pCapELE->MCS[2], pCapELE->MCS[3], pCapELE->MCS[4]);
151 return;
152
153 }
154 /********************************************************************************************************************
155 *function: This function print out each field on HT Information IE mainly from (Beacon/ProbeRsp)
156 * input: u8* InfoIE //Capability IE to be printed out
157 * u8* TitleString //mainly print out caller function
158 * output: none
159 * return: none
160 * notice: Driver should not print out this message by default.
161 * *****************************************************************************************************************/
162 void HTDebugHTInfo(u8* InfoIE, u8* TitleString)
163 {
164
165 static u8 EWC11NHTInfo[] = {0x00, 0x90, 0x4c, 0x34}; // For 11n EWC definition, 2007.07.17, by Emily
166 PHT_INFORMATION_ELE pHTInfoEle;
167
168 if(!memcmp(InfoIE, EWC11NHTInfo, sizeof(EWC11NHTInfo)))
169 {
170 // Not EWC IE
171 IEEE80211_DEBUG(IEEE80211_DL_HT, "EWC IE in %s()\n", __FUNCTION__);
172 pHTInfoEle = (PHT_INFORMATION_ELE)(&InfoIE[4]);
173 }else
174 pHTInfoEle = (PHT_INFORMATION_ELE)(&InfoIE[0]);
175
176
177 IEEE80211_DEBUG(IEEE80211_DL_HT, "<Log HT Information Element>. Called by %s\n", TitleString);
178
179 IEEE80211_DEBUG(IEEE80211_DL_HT, "\tPrimary channel = %d\n", pHTInfoEle->ControlChl);
180 IEEE80211_DEBUG(IEEE80211_DL_HT, "\tSenondary channel =");
181 switch(pHTInfoEle->ExtChlOffset)
182 {
183 case 0:
184 IEEE80211_DEBUG(IEEE80211_DL_HT, "Not Present\n");
185 break;
186 case 1:
187 IEEE80211_DEBUG(IEEE80211_DL_HT, "Upper channel\n");
188 break;
189 case 2:
190 IEEE80211_DEBUG(IEEE80211_DL_HT, "Reserved. Eooro!!!\n");
191 break;
192 case 3:
193 IEEE80211_DEBUG(IEEE80211_DL_HT, "Lower Channel\n");
194 break;
195 }
196 IEEE80211_DEBUG(IEEE80211_DL_HT, "\tRecommended channel width = %s\n", (pHTInfoEle->RecommemdedTxWidth)?"20Mhz": "40Mhz");
197
198 IEEE80211_DEBUG(IEEE80211_DL_HT, "\tOperation mode for protection = ");
199 switch(pHTInfoEle->OptMode)
200 {
201 case 0:
202 IEEE80211_DEBUG(IEEE80211_DL_HT, "No Protection\n");
203 break;
204 case 1:
205 IEEE80211_DEBUG(IEEE80211_DL_HT, "HT non-member protection mode\n");
206 break;
207 case 2:
208 IEEE80211_DEBUG(IEEE80211_DL_HT, "Suggest to open protection\n");
209 break;
210 case 3:
211 IEEE80211_DEBUG(IEEE80211_DL_HT, "HT mixed mode\n");
212 break;
213 }
214
215 IEEE80211_DEBUG(IEEE80211_DL_HT, "\tBasic MCS Rate Set = [%x][%x][%x][%x][%x]\n", pHTInfoEle->BasicMSC[0],\
216 pHTInfoEle->BasicMSC[1], pHTInfoEle->BasicMSC[2], pHTInfoEle->BasicMSC[3], pHTInfoEle->BasicMSC[4]);
217 return;
218 }
219
220 /*
221 * Return: true if station in half n mode and AP supports 40 bw
222 */
223 bool IsHTHalfNmode40Bandwidth(struct ieee80211_device* ieee)
224 {
225 bool retValue = false;
226 PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo;
227
228 if(pHTInfo->bCurrentHTSupport == false ) // wireless is n mode
229 retValue = false;
230 else if(pHTInfo->bRegBW40MHz == false) // station supports 40 bw
231 retValue = false;
232 else if(!ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev)) // station in half n mode
233 retValue = false;
234 else if(((PHT_CAPABILITY_ELE)(pHTInfo->PeerHTCapBuf))->ChlWidth) // ap support 40 bw
235 retValue = true;
236 else
237 retValue = false;
238
239 return retValue;
240 }
241
242 bool IsHTHalfNmodeSGI(struct ieee80211_device* ieee, bool is40MHz)
243 {
244 bool retValue = false;
245 PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo;
246
247 if(pHTInfo->bCurrentHTSupport == false ) // wireless is n mode
248 retValue = false;
249 else if(!ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev)) // station in half n mode
250 retValue = false;
251 else if(is40MHz) // ap support 40 bw
252 {
253 if(((PHT_CAPABILITY_ELE)(pHTInfo->PeerHTCapBuf))->ShortGI40Mhz) // ap support 40 bw short GI
254 retValue = true;
255 else
256 retValue = false;
257 }
258 else
259 {
260 if(((PHT_CAPABILITY_ELE)(pHTInfo->PeerHTCapBuf))->ShortGI20Mhz) // ap support 40 bw short GI
261 retValue = true;
262 else
263 retValue = false;
264 }
265
266 return retValue;
267 }
268
269 u16 HTHalfMcsToDataRate(struct ieee80211_device* ieee, u8 nMcsRate)
270 {
271
272 u8 is40MHz;
273 u8 isShortGI;
274
275 is40MHz = (IsHTHalfNmode40Bandwidth(ieee))?1:0;
276 isShortGI = (IsHTHalfNmodeSGI(ieee, is40MHz))? 1:0;
277
278 return MCS_DATA_RATE[is40MHz][isShortGI][(nMcsRate&0x7f)];
279 }
280
281
282 u16 HTMcsToDataRate( struct ieee80211_device* ieee, u8 nMcsRate)
283 {
284 PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo;
285
286 u8 is40MHz = (pHTInfo->bCurBW40MHz)?1:0;
287 u8 isShortGI = (pHTInfo->bCurBW40MHz)?
288 ((pHTInfo->bCurShortGI40MHz)?1:0):
289 ((pHTInfo->bCurShortGI20MHz)?1:0);
290 return MCS_DATA_RATE[is40MHz][isShortGI][(nMcsRate&0x7f)];
291 }
292
293 /********************************************************************************************************************
294 *function: This function returns current datarate.
295 * input: struct ieee80211_device* ieee
296 * u8 nDataRate
297 * output: none
298 * return: tx rate
299 * notice: quite unsure about how to use this function //wb
300 * *****************************************************************************************************************/
301 u16 TxCountToDataRate( struct ieee80211_device* ieee, u8 nDataRate)
302 {
303 //PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo;
304 u16 CCKOFDMRate[12] = {0x02 , 0x04 , 0x0b , 0x16 , 0x0c , 0x12 , 0x18 , 0x24 , 0x30 , 0x48 , 0x60 , 0x6c};
305 u8 is40MHz = 0;
306 u8 isShortGI = 0;
307
308 if(nDataRate < 12)
309 {
310 return CCKOFDMRate[nDataRate];
311 }
312 else
313 {
314 if (nDataRate >= 0x10 && nDataRate <= 0x1f)//if(nDataRate > 11 && nDataRate < 28 )
315 {
316 is40MHz = 0;
317 isShortGI = 0;
318
319 // nDataRate = nDataRate - 12;
320 }
321 else if(nDataRate >=0x20 && nDataRate <= 0x2f ) //(27, 44)
322 {
323 is40MHz = 1;
324 isShortGI = 0;
325
326 //nDataRate = nDataRate - 28;
327 }
328 else if(nDataRate >= 0x30 && nDataRate <= 0x3f ) //(43, 60)
329 {
330 is40MHz = 0;
331 isShortGI = 1;
332
333 //nDataRate = nDataRate - 44;
334 }
335 else if(nDataRate >= 0x40 && nDataRate <= 0x4f ) //(59, 76)
336 {
337 is40MHz = 1;
338 isShortGI = 1;
339
340 //nDataRate = nDataRate - 60;
341 }
342 return MCS_DATA_RATE[is40MHz][isShortGI][nDataRate&0xf];
343 }
344 }
345
346
347
348 bool IsHTHalfNmodeAPs(struct ieee80211_device* ieee)
349 {
350 bool retValue = false;
351 struct ieee80211_network* net = &ieee->current_network;
352 if((memcmp(net->bssid, BELKINF5D8233V1_RALINK, 3)==0) ||
353 (memcmp(net->bssid, BELKINF5D82334V3_RALINK, 3)==0) ||
354 (memcmp(net->bssid, PCI_RALINK, 3)==0) ||
355 (memcmp(net->bssid, EDIMAX_RALINK, 3)==0) ||
356 (memcmp(net->bssid, AIRLINK_RALINK, 3)==0) ||
357 (net->ralink_cap_exist))
358 retValue = true;
359 else if((memcmp(net->bssid, UNKNOWN_BORADCOM, 3)==0) ||
360 (memcmp(net->bssid, LINKSYSWRT330_LINKSYSWRT300_BROADCOM, 3)==0)||
361 (memcmp(net->bssid, LINKSYSWRT350_LINKSYSWRT150_BROADCOM, 3)==0)||
362 //(memcmp(net->bssid, NETGEAR834Bv2_BROADCOM, 3)==0) ||
363 (net->broadcom_cap_exist))
364 retValue = true;
365 else if(net->bssht.bdRT2RTAggregation)
366 retValue = true;
367 else
368 retValue = false;
369
370 return retValue;
371 }
372
373 /********************************************************************************************************************
374 *function: This function returns peer IOT.
375 * input: struct ieee80211_device* ieee
376 * output: none
377 * return:
378 * notice:
379 * *****************************************************************************************************************/
380 void HTIOTPeerDetermine(struct ieee80211_device* ieee)
381 {
382 PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo;
383 struct ieee80211_network* net = &ieee->current_network;
384 if(net->bssht.bdRT2RTAggregation)
385 pHTInfo->IOTPeer = HT_IOT_PEER_REALTEK;
386 else if(net->broadcom_cap_exist){
387 pHTInfo->IOTPeer = HT_IOT_PEER_BROADCOM;
388 }
389 else if((memcmp(net->bssid, UNKNOWN_BORADCOM, 3)==0) ||
390 (memcmp(net->bssid, LINKSYSWRT330_LINKSYSWRT300_BROADCOM, 3)==0)||
391 (memcmp(net->bssid, LINKSYSWRT350_LINKSYSWRT150_BROADCOM, 3)==0)){//||
392 //(memcmp(net->bssid, NETGEAR834Bv2_BROADCOM, 3)==0) ){
393 pHTInfo->IOTPeer = HT_IOT_PEER_BROADCOM;
394 }
395 else if((memcmp(net->bssid, BELKINF5D8233V1_RALINK, 3)==0) ||
396 (memcmp(net->bssid, BELKINF5D82334V3_RALINK, 3)==0) ||
397 (memcmp(net->bssid, PCI_RALINK, 3)==0) ||
398 (memcmp(net->bssid, EDIMAX_RALINK, 3)==0) ||
399 (memcmp(net->bssid, AIRLINK_RALINK, 3)==0) ||
400 net->ralink_cap_exist)
401 pHTInfo->IOTPeer = HT_IOT_PEER_RALINK;
402 else if((net->atheros_cap_exist )|| (memcmp(net->bssid, DLINK_ATHEROS, 3) == 0))
403 pHTInfo->IOTPeer = HT_IOT_PEER_ATHEROS;
404 else if(memcmp(net->bssid, CISCO_BROADCOM, 3)==0)
405 pHTInfo->IOTPeer = HT_IOT_PEER_CISCO;
406 else if ((memcmp(net->bssid, LINKSYS_MARVELL_4400N, 3) == 0) ||
407 net->marvell_cap_exist){
408 pHTInfo->IOTPeer = HT_IOT_PEER_MARVELL;
409 }
410 else
411 pHTInfo->IOTPeer = HT_IOT_PEER_UNKNOWN;
412
413 IEEE80211_DEBUG(IEEE80211_DL_IOT, "Joseph debug!! IOTPEER: %x\n", pHTInfo->IOTPeer);
414 }
415 /********************************************************************************************************************
416 *function: Check whether driver should declare received rate up to MCS13 only since some chipset is not good
417 * at receiving MCS14~15 frame from some AP.
418 * input: struct ieee80211_device* ieee
419 * u8 * PeerMacAddr
420 * output: none
421 * return: return 1 if driver should declare MCS13 only(otherwise return 0)
422 * *****************************************************************************************************************/
423 u8 HTIOTActIsDisableMCS14(struct ieee80211_device* ieee, u8* PeerMacAddr)
424 {
425 u8 ret = 0;
426 return ret;
427 }
428
429 u8 HTIOTActIsForcedCTS2Self(struct ieee80211_device *ieee, struct ieee80211_network *network)
430 {
431 u8 retValue = 0;
432 //if(network->marvell_cap_exist)
433 if(ieee->pHTInfo->IOTPeer == HT_IOT_PEER_MARVELL)
434 {
435 retValue = 1;
436 }
437
438 return retValue;
439 }
440
441
442 /**
443 * Function: HTIOTActIsDisableMCS15
444 *
445 * Overview: Check whether driver should declare capability of receving MCS15
446 *
447 * Input:
448 * PADAPTER Adapter,
449 *
450 * Output: None
451 * Return: true if driver should disable MCS15
452 * 2008.04.15 Emily
453 */
454 bool HTIOTActIsDisableMCS15(struct ieee80211_device* ieee)
455 {
456 bool retValue = false;
457
458 #ifdef TODO
459 // Apply for 819u only
460 #if (HAL_CODE_BASE==RTL8192)
461
462 #if (DEV_BUS_TYPE == USB_INTERFACE)
463 // Alway disable MCS15 by Jerry Chang's request.by Emily, 2008.04.15
464 retValue = true;
465 #elif (DEV_BUS_TYPE == PCI_INTERFACE)
466 // Enable MCS15 if the peer is Cisco AP. by Emily, 2008.05.12
467 // if(pBssDesc->bCiscoCapExist)
468 // retValue = false;
469 // else
470 retValue = false;
471 #endif
472 #endif
473 #endif
474 // Jerry Chang suggest that 8190 1x2 does not need to disable MCS15
475
476 return retValue;
477 }
478
479 /**
480 * Function: HTIOTActIsDisableMCSTwoSpatialStream
481 *
482 * Overview: Check whether driver should declare capability of receving All 2 ss packets
483 *
484 * Input:
485 * PADAPTER Adapter,
486 *
487 * Output: None
488 * Return: true if driver should disable all two spatial stream packet
489 * 2008.04.21 Emily
490 */
491 bool HTIOTActIsDisableMCSTwoSpatialStream(struct ieee80211_device* ieee, u8 *PeerMacAddr)
492 {
493 bool retValue = false;
494
495 #ifdef TODO
496 // Apply for 819u only
497 //#if (HAL_CODE_BASE==RTL8192)
498
499 //This rule only apply to Belkin(Ralink) AP
500 if(IS_UNDER_11N_AES_MODE(Adapter))
501 {
502 if((PlatformCompareMemory(PeerMacAddr, BELKINF5D8233V1_RALINK, 3)==0) ||
503 (PlatformCompareMemory(PeerMacAddr, PCI_RALINK, 3)==0) ||
504 (PlatformCompareMemory(PeerMacAddr, EDIMAX_RALINK, 3)==0))
505 {
506 //Set True to disable this function. Disable by default, Emily, 2008.04.23
507 retValue = false;
508 }
509 }
510
511 //#endif
512 #endif
513 return retValue;
514 }
515
516 /********************************************************************************************************************
517 *function: Check whether driver should disable EDCA turbo mode
518 * input: struct ieee80211_device* ieee
519 * u8* PeerMacAddr
520 * output: none
521 * return: return 1 if driver should disable EDCA turbo mode(otherwise return 0)
522 * *****************************************************************************************************************/
523 u8 HTIOTActIsDisableEDCATurbo(struct ieee80211_device* ieee, u8* PeerMacAddr)
524 {
525 u8 retValue = false; // default enable EDCA Turbo mode.
526 // Set specific EDCA parameter for different AP in DM handler.
527
528 return retValue;
529 }
530
531 /********************************************************************************************************************
532 *function: Check whether we need to use OFDM to sned MGNT frame for broadcom AP
533 * input: struct ieee80211_network *network //current network we live
534 * output: none
535 * return: return 1 if true
536 * *****************************************************************************************************************/
537 u8 HTIOTActIsMgntUseCCK6M(struct ieee80211_network *network)
538 {
539 u8 retValue = 0;
540
541 // 2008/01/25 MH Judeg if we need to use OFDM to sned MGNT frame for broadcom AP.
542 // 2008/01/28 MH We must prevent that we select null bssid to link.
543
544 if(network->broadcom_cap_exist)
545 {
546 retValue = 1;
547 }
548
549 return retValue;
550 }
551
552 u8 HTIOTActIsCCDFsync(u8* PeerMacAddr)
553 {
554 u8 retValue = 0;
555 if( (memcmp(PeerMacAddr, UNKNOWN_BORADCOM, 3)==0) ||
556 (memcmp(PeerMacAddr, LINKSYSWRT330_LINKSYSWRT300_BROADCOM, 3)==0) ||
557 (memcmp(PeerMacAddr, LINKSYSWRT350_LINKSYSWRT150_BROADCOM, 3) ==0))
558 {
559 retValue = 1;
560 }
561
562 return retValue;
563 }
564
565 //
566 // Send null data for to tell AP that we are awake.
567 //
568 bool
569 HTIOTActIsNullDataPowerSaving(struct ieee80211_device* ieee,struct ieee80211_network *network)
570 {
571 bool retValue = false;
572
573 PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo;
574 {
575 if(pHTInfo->IOTPeer == HT_IOT_PEER_BROADCOM) // ||(pBssDesc->Vender == HT_IOT_PEER_ATHEROS && pBssDesc->SubTypeOfVender == HT_IOT_PEER_ATHEROS_DIR635))
576 return true;
577
578 }
579 return retValue;
580 }
581
582 void HTResetIOTSetting(
583 PRT_HIGH_THROUGHPUT pHTInfo
584 )
585 {
586 pHTInfo->IOTAction = 0;
587 pHTInfo->IOTPeer = HT_IOT_PEER_UNKNOWN;
588 }
589
590
591 /********************************************************************************************************************
592 *function: Construct Capablility Element in Beacon... if HTEnable is turned on
593 * input: struct ieee80211_device* ieee
594 * u8* posHTCap //pointer to store Capability Ele
595 * u8* len //store length of CE
596 * u8 IsEncrypt //whether encrypt, needed further
597 * output: none
598 * return: none
599 * notice: posHTCap can't be null and should be initialized before.
600 * *****************************************************************************************************************/
601 void HTConstructCapabilityElement(struct ieee80211_device* ieee, u8* posHTCap, u8* len, u8 IsEncrypt)
602 {
603 PRT_HIGH_THROUGHPUT pHT = ieee->pHTInfo;
604 PHT_CAPABILITY_ELE pCapELE = NULL;
605 //u8 bIsDeclareMCS13;
606
607 if ((posHTCap == NULL) || (pHT == NULL))
608 {
609 IEEE80211_DEBUG(IEEE80211_DL_ERR, "posHTCap or pHTInfo can't be null in HTConstructCapabilityElement()\n");
610 return;
611 }
612 memset(posHTCap, 0, *len);
613 if(pHT->ePeerHTSpecVer == HT_SPEC_VER_EWC)
614 {
615 u8 EWC11NHTCap[] = {0x00, 0x90, 0x4c, 0x33}; // For 11n EWC definition, 2007.07.17, by Emily
616 memcpy(posHTCap, EWC11NHTCap, sizeof(EWC11NHTCap));
617 pCapELE = (PHT_CAPABILITY_ELE)&(posHTCap[4]);
618 }else
619 {
620 pCapELE = (PHT_CAPABILITY_ELE)posHTCap;
621 }
622
623
624 //HT capability info
625 pCapELE->AdvCoding = 0; // This feature is not supported now!!
626 if(ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev))
627 {
628 pCapELE->ChlWidth = 0;
629 }
630 else
631 {
632 pCapELE->ChlWidth = (pHT->bRegBW40MHz?1:0);
633 }
634
635 // pCapELE->ChlWidth = (pHT->bRegBW40MHz?1:0);
636 pCapELE->MimoPwrSave = pHT->SelfMimoPs;
637 pCapELE->GreenField = 0; // This feature is not supported now!!
638 pCapELE->ShortGI20Mhz = 1; // We can receive Short GI!!
639 pCapELE->ShortGI40Mhz = 1; // We can receive Short GI!!
640 //DbgPrint("TX HT cap/info ele BW=%d SG20=%d SG40=%d\n\r",
641 //pCapELE->ChlWidth, pCapELE->ShortGI20Mhz, pCapELE->ShortGI40Mhz);
642 pCapELE->TxSTBC = 1;
643 pCapELE->RxSTBC = 0;
644 pCapELE->DelayBA = 0; // Do not support now!!
645 pCapELE->MaxAMSDUSize = (MAX_RECEIVE_BUFFER_SIZE>=7935)?1:0;
646 pCapELE->DssCCk = ((pHT->bRegBW40MHz)?(pHT->bRegSuppCCK?1:0):0);
647 pCapELE->PSMP = 0; // Do not support now!!
648 pCapELE->LSigTxopProtect = 0; // Do not support now!!
649
650
651 //MAC HT parameters info
652 // TODO: Nedd to take care of this part
653 IEEE80211_DEBUG(IEEE80211_DL_HT, "TX HT cap/info ele BW=%d MaxAMSDUSize:%d DssCCk:%d\n", pCapELE->ChlWidth, pCapELE->MaxAMSDUSize, pCapELE->DssCCk);
654
655 if( IsEncrypt)
656 {
657 pCapELE->MPDUDensity = 7; // 8us
658 pCapELE->MaxRxAMPDUFactor = 2; // 2 is for 32 K and 3 is 64K
659 }
660 else
661 {
662 pCapELE->MaxRxAMPDUFactor = 3; // 2 is for 32 K and 3 is 64K
663 pCapELE->MPDUDensity = 0; // no density
664 }
665
666 //Supported MCS set
667 memcpy(pCapELE->MCS, ieee->Regdot11HTOperationalRateSet, 16);
668 if(pHT->IOTAction & HT_IOT_ACT_DISABLE_MCS15)
669 pCapELE->MCS[1] &= 0x7f;
670
671 if(pHT->IOTAction & HT_IOT_ACT_DISABLE_MCS14)
672 pCapELE->MCS[1] &= 0xbf;
673
674 if(pHT->IOTAction & HT_IOT_ACT_DISABLE_ALL_2SS)
675 pCapELE->MCS[1] &= 0x00;
676
677 // 2008.06.12
678 // For RTL819X, if pairwisekey = wep/tkip, ap is ralink, we support only MCS0~7.
679 if(ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev))
680 {
681 int i;
682 for(i = 1; i< 16; i++)
683 pCapELE->MCS[i] = 0;
684 }
685
686 //Extended HT Capability Info
687 memset(&pCapELE->ExtHTCapInfo, 0, 2);
688
689
690 //TXBF Capabilities
691 memset(pCapELE->TxBFCap, 0, 4);
692
693 //Antenna Selection Capabilities
694 pCapELE->ASCap = 0;
695 //add 2 to give space for element ID and len when construct frames
696 if(pHT->ePeerHTSpecVer == HT_SPEC_VER_EWC)
697 *len = 30 + 2;
698 else
699 *len = 26 + 2;
700
701
702
703 // IEEE80211_DEBUG_DATA(IEEE80211_DL_DATA | IEEE80211_DL_HT, posHTCap, *len -2);
704
705 //Print each field in detail. Driver should not print out this message by default
706 // HTDebugHTCapability(posHTCap, (u8*)"HTConstructCapability()");
707 return;
708
709 }
710 /********************************************************************************************************************
711 *function: Construct Information Element in Beacon... if HTEnable is turned on
712 * input: struct ieee80211_device* ieee
713 * u8* posHTCap //pointer to store Information Ele
714 * u8* len //store len of
715 * u8 IsEncrypt //whether encrypt, needed further
716 * output: none
717 * return: none
718 * notice: posHTCap can't be null and be initialized before. only AP and IBSS sta should do this
719 * *****************************************************************************************************************/
720 void HTConstructInfoElement(struct ieee80211_device* ieee, u8* posHTInfo, u8* len, u8 IsEncrypt)
721 {
722 PRT_HIGH_THROUGHPUT pHT = ieee->pHTInfo;
723 PHT_INFORMATION_ELE pHTInfoEle = (PHT_INFORMATION_ELE)posHTInfo;
724 if ((posHTInfo == NULL) || (pHTInfoEle == NULL))
725 {
726 IEEE80211_DEBUG(IEEE80211_DL_ERR, "posHTInfo or pHTInfoEle can't be null in HTConstructInfoElement()\n");
727 return;
728 }
729
730 memset(posHTInfo, 0, *len);
731 if ( (ieee->iw_mode == IW_MODE_ADHOC) || (ieee->iw_mode == IW_MODE_MASTER)) //ap mode is not currently supported
732 {
733 pHTInfoEle->ControlChl = ieee->current_network.channel;
734 pHTInfoEle->ExtChlOffset = ((pHT->bRegBW40MHz == false)?HT_EXTCHNL_OFFSET_NO_EXT:
735 (ieee->current_network.channel<=6)?
736 HT_EXTCHNL_OFFSET_UPPER:HT_EXTCHNL_OFFSET_LOWER);
737 pHTInfoEle->RecommemdedTxWidth = pHT->bRegBW40MHz;
738 pHTInfoEle->RIFS = 0;
739 pHTInfoEle->PSMPAccessOnly = 0;
740 pHTInfoEle->SrvIntGranularity = 0;
741 pHTInfoEle->OptMode = pHT->CurrentOpMode;
742 pHTInfoEle->NonGFDevPresent = 0;
743 pHTInfoEle->DualBeacon = 0;
744 pHTInfoEle->SecondaryBeacon = 0;
745 pHTInfoEle->LSigTxopProtectFull = 0;
746 pHTInfoEle->PcoActive = 0;
747 pHTInfoEle->PcoPhase = 0;
748
749 memset(pHTInfoEle->BasicMSC, 0, 16);
750
751
752 *len = 22 + 2; //same above
753
754 }
755 else
756 {
757 //STA should not generate High Throughput Information Element
758 *len = 0;
759 }
760 //IEEE80211_DEBUG_DATA(IEEE80211_DL_DATA | IEEE80211_DL_HT, posHTInfo, *len - 2);
761 //HTDebugHTInfo(posHTInfo, "HTConstructInforElement");
762 return;
763 }
764
765 /*
766 * According to experiment, Realtek AP to STA (based on rtl8190) may achieve best performance
767 * if both STA and AP set limitation of aggregation size to 32K, that is, set AMPDU density to 2
768 * (Ref: IEEE 11n specification). However, if Realtek STA associates to other AP, STA should set
769 * limitation of aggregation size to 8K, otherwise, performance of traffic stream from STA to AP
770 * will be much less than the traffic stream from AP to STA if both of the stream runs concurrently
771 * at the same time.
772 *
773 * Frame Format
774 * Element ID Length OUI Type1 Reserved
775 * 1 byte 1 byte 3 bytes 1 byte 1 byte
776 *
777 * OUI = 0x00, 0xe0, 0x4c,
778 * Type = 0x02
779 * Reserved = 0x00
780 *
781 * 2007.8.21 by Emily
782 */
783 /********************************************************************************************************************
784 *function: Construct Information Element in Beacon... in RT2RT condition
785 * input: struct ieee80211_device* ieee
786 * u8* posRT2RTAgg //pointer to store Information Ele
787 * u8* len //store len
788 * output: none
789 * return: none
790 * notice:
791 * *****************************************************************************************************************/
792 void HTConstructRT2RTAggElement(struct ieee80211_device* ieee, u8* posRT2RTAgg, u8* len)
793 {
794 if (posRT2RTAgg == NULL) {
795 IEEE80211_DEBUG(IEEE80211_DL_ERR, "posRT2RTAgg can't be null in HTConstructRT2RTAggElement()\n");
796 return;
797 }
798 memset(posRT2RTAgg, 0, *len);
799 *posRT2RTAgg++ = 0x00;
800 *posRT2RTAgg++ = 0xe0;
801 *posRT2RTAgg++ = 0x4c;
802 *posRT2RTAgg++ = 0x02;
803 *posRT2RTAgg++ = 0x01;
804 *posRT2RTAgg = 0x10;//*posRT2RTAgg = 0x02;
805
806 if(ieee->bSupportRemoteWakeUp) {
807 *posRT2RTAgg |= 0x08;//RT_HT_CAP_USE_WOW;
808 }
809
810 *len = 6 + 2;
811 return;
812 #ifdef TODO
813 #if(HAL_CODE_BASE == RTL8192 && DEV_BUS_TYPE == USB_INTERFACE)
814 /*
815 //Emily. If it is required to Ask Realtek AP to send AMPDU during AES mode, enable this
816 section of code.
817 if(IS_UNDER_11N_AES_MODE(Adapter))
818 {
819 posRT2RTAgg->Octet[5] |=RT_HT_CAP_USE_AMPDU;
820 }else
821 {
822 posRT2RTAgg->Octet[5] &= 0xfb;
823 }
824 */
825
826 #else
827 // Do Nothing
828 #endif
829
830 posRT2RTAgg->Length = 6;
831 #endif
832
833
834
835
836 }
837
838
839 /********************************************************************************************************************
840 *function: Pick the right Rate Adaptive table to use
841 * input: struct ieee80211_device* ieee
842 * u8* pOperateMCS //A pointer to MCS rate bitmap
843 * return: always we return true
844 * notice:
845 * *****************************************************************************************************************/
846 u8 HT_PickMCSRate(struct ieee80211_device* ieee, u8* pOperateMCS)
847 {
848 u8 i;
849 if (pOperateMCS == NULL)
850 {
851 IEEE80211_DEBUG(IEEE80211_DL_ERR, "pOperateMCS can't be null in HT_PickMCSRate()\n");
852 return false;
853 }
854
855 switch(ieee->mode)
856 {
857 case IEEE_A:
858 case IEEE_B:
859 case IEEE_G:
860 //legacy rate routine handled at selectedrate
861
862 //no MCS rate
863 for(i=0;i<=15;i++){
864 pOperateMCS[i] = 0;
865 }
866 break;
867
868 case IEEE_N_24G: //assume CCK rate ok
869 case IEEE_N_5G:
870 // Legacy part we only use 6, 5.5,2,1 for N_24G and 6 for N_5G.
871 // Legacy part shall be handled at SelectRateSet().
872
873 //HT part
874 // TODO: may be different if we have different number of antenna
875 pOperateMCS[0] &=RATE_ADPT_1SS_MASK; //support MCS 0~7
876 pOperateMCS[1] &=RATE_ADPT_2SS_MASK;
877 pOperateMCS[3] &=RATE_ADPT_MCS32_MASK;
878 break;
879
880 //should never reach here
881 default:
882
883 break;
884
885 }
886
887 return true;
888 }
889
890 /*
891 * Description:
892 * This function will get the highest speed rate in input MCS set.
893 *
894 * /param Adapter Pionter to Adapter entity
895 * pMCSRateSet Pointer to MCS rate bitmap
896 * pMCSFilter Pointer to MCS rate filter
897 *
898 * /return Highest MCS rate included in pMCSRateSet and filtered by pMCSFilter.
899 *
900 */
901 /********************************************************************************************************************
902 *function: This function will get the highest speed rate in input MCS set.
903 * input: struct ieee80211_device* ieee
904 * u8* pMCSRateSet //Pointer to MCS rate bitmap
905 * u8* pMCSFilter //Pointer to MCS rate filter
906 * return: Highest MCS rate included in pMCSRateSet and filtered by pMCSFilter
907 * notice:
908 * *****************************************************************************************************************/
909 u8 HTGetHighestMCSRate(struct ieee80211_device* ieee, u8* pMCSRateSet, u8* pMCSFilter)
910 {
911 u8 i, j;
912 u8 bitMap;
913 u8 mcsRate = 0;
914 u8 availableMcsRate[16];
915 if (pMCSRateSet == NULL || pMCSFilter == NULL)
916 {
917 IEEE80211_DEBUG(IEEE80211_DL_ERR, "pMCSRateSet or pMCSFilter can't be null in HTGetHighestMCSRate()\n");
918 return false;
919 }
920 for(i=0; i<16; i++)
921 availableMcsRate[i] = pMCSRateSet[i] & pMCSFilter[i];
922
923 for(i = 0; i < 16; i++)
924 {
925 if(availableMcsRate[i] != 0)
926 break;
927 }
928 if(i == 16)
929 return false;
930
931 for(i = 0; i < 16; i++)
932 {
933 if(availableMcsRate[i] != 0)
934 {
935 bitMap = availableMcsRate[i];
936 for(j = 0; j < 8; j++)
937 {
938 if((bitMap%2) != 0)
939 {
940 if(HTMcsToDataRate(ieee, (8*i+j)) > HTMcsToDataRate(ieee, mcsRate))
941 mcsRate = (8*i+j);
942 }
943 bitMap = bitMap>>1;
944 }
945 }
946 }
947 return (mcsRate|0x80);
948 }
949
950
951
952 /*
953 **
954 **1.Filter our operation rate set with AP's rate set
955 **2.shall reference channel bandwidth, STBC, Antenna number
956 **3.generate rate adative table for firmware
957 **David 20060906
958 **
959 ** \pHTSupportedCap: the connected STA's supported rate Capability element
960 */
961 u8 HTFilterMCSRate( struct ieee80211_device* ieee, u8* pSupportMCS, u8* pOperateMCS)
962 {
963
964 u8 i=0;
965
966 // filter out operational rate set not supported by AP, the lenth of it is 16
967 for(i=0;i<=15;i++){
968 pOperateMCS[i] = ieee->Regdot11HTOperationalRateSet[i]&pSupportMCS[i];
969 }
970
971
972 // TODO: adjust our operational rate set according to our channel bandwidth, STBC and Antenna number
973
974 // TODO: fill suggested rate adaptive rate index and give firmware info using Tx command packet
975 // we also shall suggested the first start rate set according to our singal strength
976 HT_PickMCSRate(ieee, pOperateMCS);
977
978 // For RTL819X, if pairwisekey = wep/tkip, we support only MCS0~7.
979 if(ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev))
980 pOperateMCS[1] = 0;
981
982 //
983 // For RTL819X, we support only MCS0~15.
984 // And also, we do not know how to use MCS32 now.
985 //
986 for(i=2; i<=15; i++)
987 pOperateMCS[i] = 0;
988
989 return true;
990 }
991 void HTSetConnectBwMode(struct ieee80211_device* ieee, HT_CHANNEL_WIDTH Bandwidth, HT_EXTCHNL_OFFSET Offset);
992 void HTOnAssocRsp(struct ieee80211_device *ieee)
993 {
994 PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo;
995 PHT_CAPABILITY_ELE pPeerHTCap = NULL;
996 PHT_INFORMATION_ELE pPeerHTInfo = NULL;
997 u16 nMaxAMSDUSize = 0;
998 u8* pMcsFilter = NULL;
999
1000 static u8 EWC11NHTCap[] = {0x00, 0x90, 0x4c, 0x33}; // For 11n EWC definition, 2007.07.17, by Emily
1001 static u8 EWC11NHTInfo[] = {0x00, 0x90, 0x4c, 0x34}; // For 11n EWC definition, 2007.07.17, by Emily
1002
1003 if( pHTInfo->bCurrentHTSupport == false )
1004 {
1005 IEEE80211_DEBUG(IEEE80211_DL_ERR, "<=== HTOnAssocRsp(): HT_DISABLE\n");
1006 return;
1007 }
1008 IEEE80211_DEBUG(IEEE80211_DL_HT, "===> HTOnAssocRsp_wq(): HT_ENABLE\n");
1009 // IEEE80211_DEBUG_DATA(IEEE80211_DL_DATA, pHTInfo->PeerHTCapBuf, sizeof(HT_CAPABILITY_ELE));
1010 // IEEE80211_DEBUG_DATA(IEEE80211_DL_DATA, pHTInfo->PeerHTInfoBuf, sizeof(HT_INFORMATION_ELE));
1011
1012 // HTDebugHTCapability(pHTInfo->PeerHTCapBuf,"HTOnAssocRsp_wq");
1013 // HTDebugHTInfo(pHTInfo->PeerHTInfoBuf,"HTOnAssocRsp_wq");
1014 //
1015 if(!memcmp(pHTInfo->PeerHTCapBuf,EWC11NHTCap, sizeof(EWC11NHTCap)))
1016 pPeerHTCap = (PHT_CAPABILITY_ELE)(&pHTInfo->PeerHTCapBuf[4]);
1017 else
1018 pPeerHTCap = (PHT_CAPABILITY_ELE)(pHTInfo->PeerHTCapBuf);
1019
1020 if(!memcmp(pHTInfo->PeerHTInfoBuf, EWC11NHTInfo, sizeof(EWC11NHTInfo)))
1021 pPeerHTInfo = (PHT_INFORMATION_ELE)(&pHTInfo->PeerHTInfoBuf[4]);
1022 else
1023 pPeerHTInfo = (PHT_INFORMATION_ELE)(pHTInfo->PeerHTInfoBuf);
1024
1025
1026 ////////////////////////////////////////////////////////
1027 // Configurations:
1028 ////////////////////////////////////////////////////////
1029 IEEE80211_DEBUG_DATA(IEEE80211_DL_DATA|IEEE80211_DL_HT, pPeerHTCap, sizeof(HT_CAPABILITY_ELE));
1030 // IEEE80211_DEBUG_DATA(IEEE80211_DL_DATA|IEEE80211_DL_HT, pPeerHTInfo, sizeof(HT_INFORMATION_ELE));
1031 // Config Supported Channel Width setting
1032 //
1033 HTSetConnectBwMode(ieee, (HT_CHANNEL_WIDTH)(pPeerHTCap->ChlWidth), (HT_EXTCHNL_OFFSET)(pPeerHTInfo->ExtChlOffset));
1034
1035 // if(pHTInfo->bCurBW40MHz == true)
1036 pHTInfo->bCurTxBW40MHz = ((pPeerHTInfo->RecommemdedTxWidth == 1)?true:false);
1037
1038 //
1039 // Update short GI/ long GI setting
1040 //
1041 // TODO:
1042 pHTInfo->bCurShortGI20MHz=
1043 ((pHTInfo->bRegShortGI20MHz)?((pPeerHTCap->ShortGI20Mhz==1)?true:false):false);
1044 pHTInfo->bCurShortGI40MHz=
1045 ((pHTInfo->bRegShortGI40MHz)?((pPeerHTCap->ShortGI40Mhz==1)?true:false):false);
1046
1047 //
1048 // Config TX STBC setting
1049 //
1050 // TODO:
1051
1052 //
1053 // Config DSSS/CCK mode in 40MHz mode
1054 //
1055 // TODO:
1056 pHTInfo->bCurSuppCCK =
1057 ((pHTInfo->bRegSuppCCK)?((pPeerHTCap->DssCCk==1)?true:false):false);
1058
1059
1060 //
1061 // Config and configure A-MSDU setting
1062 //
1063 pHTInfo->bCurrent_AMSDU_Support = pHTInfo->bAMSDU_Support;
1064 if (ieee->rtllib_ap_sec_type &&
1065 (ieee->rtllib_ap_sec_type(ieee)&(SEC_ALG_WEP|SEC_ALG_TKIP))){
1066 if( (pHTInfo->IOTPeer== HT_IOT_PEER_ATHEROS) ||
1067 (pHTInfo->IOTPeer == HT_IOT_PEER_UNKNOWN) )
1068 pHTInfo->bCurrentAMPDUEnable = false;
1069 }
1070
1071
1072 nMaxAMSDUSize = (pPeerHTCap->MaxAMSDUSize==0)?3839:7935;
1073
1074 if(pHTInfo->nAMSDU_MaxSize > nMaxAMSDUSize )
1075 pHTInfo->nCurrent_AMSDU_MaxSize = nMaxAMSDUSize;
1076 else
1077 pHTInfo->nCurrent_AMSDU_MaxSize = pHTInfo->nAMSDU_MaxSize;
1078
1079
1080 //
1081 // Config A-MPDU setting
1082 //
1083 pHTInfo->bCurrentAMPDUEnable = pHTInfo->bAMPDUEnable;
1084
1085 // <1> Decide AMPDU Factor
1086
1087 // By Emily
1088 if(!pHTInfo->bRegRT2RTAggregation)
1089 {
1090 // Decide AMPDU Factor according to protocol handshake
1091 if(pHTInfo->AMPDU_Factor > pPeerHTCap->MaxRxAMPDUFactor)
1092 pHTInfo->CurrentAMPDUFactor = pPeerHTCap->MaxRxAMPDUFactor;
1093 else
1094 pHTInfo->CurrentAMPDUFactor = pHTInfo->AMPDU_Factor;
1095
1096 }else
1097 {
1098 // Set MPDU density to 2 to Realtek AP, and set it to 0 for others
1099 // Replace MPDU factor declared in original association response frame format. 2007.08.20 by Emily
1100 if (ieee->current_network.bssht.bdRT2RTAggregation)
1101 {
1102 if( ieee->pairwise_key_type != KEY_TYPE_NA)
1103 // Realtek may set 32k in security mode and 64k for others
1104 pHTInfo->CurrentAMPDUFactor = pPeerHTCap->MaxRxAMPDUFactor;
1105 else
1106 pHTInfo->CurrentAMPDUFactor = HT_AGG_SIZE_64K;
1107 }else
1108 {
1109 if(pPeerHTCap->MaxRxAMPDUFactor < HT_AGG_SIZE_32K)
1110 pHTInfo->CurrentAMPDUFactor = pPeerHTCap->MaxRxAMPDUFactor;
1111 else
1112 pHTInfo->CurrentAMPDUFactor = HT_AGG_SIZE_32K;
1113 }
1114 }
1115
1116 // <2> Set AMPDU Minimum MPDU Start Spacing
1117 // 802.11n 3.0 section 9.7d.3
1118 if(pHTInfo->MPDU_Density > pPeerHTCap->MPDUDensity)
1119 pHTInfo->CurrentMPDUDensity = pHTInfo->MPDU_Density;
1120 else
1121 pHTInfo->CurrentMPDUDensity = pPeerHTCap->MPDUDensity;
1122 if(ieee->pairwise_key_type != KEY_TYPE_NA )
1123 pHTInfo->CurrentMPDUDensity = 7; // 8us
1124 // Force TX AMSDU
1125
1126 // Lanhsin: mark for tmp to avoid deauth by ap from s3
1127 //if(memcmp(pMgntInfo->Bssid, NETGEAR834Bv2_BROADCOM, 3)==0)
1128 if(0)
1129 {
1130
1131 pHTInfo->bCurrentAMPDUEnable = false;
1132 pHTInfo->ForcedAMSDUMode = HT_AGG_FORCE_ENABLE;
1133 pHTInfo->ForcedAMSDUMaxSize = 7935;
1134
1135 pHTInfo->IOTAction |= HT_IOT_ACT_TX_USE_AMSDU_8K;
1136 }
1137
1138 // Rx Reorder Setting
1139 pHTInfo->bCurRxReorderEnable = pHTInfo->bRegRxReorderEnable;
1140
1141 //
1142 // Filter out unsupported HT rate for this AP
1143 // Update RATR table
1144 // This is only for 8190 ,8192 or later product which using firmware to handle rate adaptive mechanism.
1145 //
1146
1147 // Handle Ralink AP bad MCS rate set condition. Joseph.
1148 // This fix the bug of Ralink AP. This may be removed in the future.
1149 if(pPeerHTCap->MCS[0] == 0)
1150 pPeerHTCap->MCS[0] = 0xff;
1151
1152 HTFilterMCSRate(ieee, pPeerHTCap->MCS, ieee->dot11HTOperationalRateSet);
1153
1154 //
1155 // Config MIMO Power Save setting
1156 //
1157 pHTInfo->PeerMimoPs = pPeerHTCap->MimoPwrSave;
1158 if(pHTInfo->PeerMimoPs == MIMO_PS_STATIC)
1159 pMcsFilter = MCS_FILTER_1SS;
1160 else
1161 pMcsFilter = MCS_FILTER_ALL;
1162 //WB add for MCS8 bug
1163 // pMcsFilter = MCS_FILTER_1SS;
1164 ieee->HTHighestOperaRate = HTGetHighestMCSRate(ieee, ieee->dot11HTOperationalRateSet, pMcsFilter);
1165 ieee->HTCurrentOperaRate = ieee->HTHighestOperaRate;
1166
1167 //
1168 // Config current operation mode.
1169 //
1170 pHTInfo->CurrentOpMode = pPeerHTInfo->OptMode;
1171
1172
1173
1174 }
1175
1176 void HTSetConnectBwModeCallback(struct ieee80211_device* ieee);
1177 /********************************************************************************************************************
1178 *function: initialize HT info(struct PRT_HIGH_THROUGHPUT)
1179 * input: struct ieee80211_device* ieee
1180 * output: none
1181 * return: none
1182 * notice: This function is called when * (1) MPInitialization Phase * (2) Receiving of Deauthentication from AP
1183 ********************************************************************************************************************/
1184 // TODO: Should this funciton be called when receiving of Disassociation?
1185 void HTInitializeHTInfo(struct ieee80211_device* ieee)
1186 {
1187 PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo;
1188
1189 //
1190 // These parameters will be reset when receiving deauthentication packet
1191 //
1192 IEEE80211_DEBUG(IEEE80211_DL_HT, "===========>%s()\n", __FUNCTION__);
1193 pHTInfo->bCurrentHTSupport = false;
1194
1195 // 40MHz channel support
1196 pHTInfo->bCurBW40MHz = false;
1197 pHTInfo->bCurTxBW40MHz = false;
1198
1199 // Short GI support
1200 pHTInfo->bCurShortGI20MHz = false;
1201 pHTInfo->bCurShortGI40MHz = false;
1202 pHTInfo->bForcedShortGI = false;
1203
1204 // CCK rate support
1205 // This flag is set to true to support CCK rate by default.
1206 // It will be affected by "pHTInfo->bRegSuppCCK" and AP capabilities only when associate to
1207 // 11N BSS.
1208 pHTInfo->bCurSuppCCK = true;
1209
1210 // AMSDU related
1211 pHTInfo->bCurrent_AMSDU_Support = false;
1212 pHTInfo->nCurrent_AMSDU_MaxSize = pHTInfo->nAMSDU_MaxSize;
1213
1214 // AMPUD related
1215 pHTInfo->CurrentMPDUDensity = pHTInfo->MPDU_Density;
1216 pHTInfo->CurrentAMPDUFactor = pHTInfo->AMPDU_Factor;
1217
1218
1219
1220 // Initialize all of the parameters related to 11n
1221 memset((void*)(&(pHTInfo->SelfHTCap)), 0, sizeof(pHTInfo->SelfHTCap));
1222 memset((void*)(&(pHTInfo->SelfHTInfo)), 0, sizeof(pHTInfo->SelfHTInfo));
1223 memset((void*)(&(pHTInfo->PeerHTCapBuf)), 0, sizeof(pHTInfo->PeerHTCapBuf));
1224 memset((void*)(&(pHTInfo->PeerHTInfoBuf)), 0, sizeof(pHTInfo->PeerHTInfoBuf));
1225
1226 pHTInfo->bSwBwInProgress = false;
1227 pHTInfo->ChnlOp = CHNLOP_NONE;
1228
1229 // Set default IEEE spec for Draft N
1230 pHTInfo->ePeerHTSpecVer = HT_SPEC_VER_IEEE;
1231
1232 // Realtek proprietary aggregation mode
1233 pHTInfo->bCurrentRT2RTAggregation = false;
1234 pHTInfo->bCurrentRT2RTLongSlotTime = false;
1235 pHTInfo->IOTPeer = 0;
1236 pHTInfo->IOTAction = 0;
1237
1238 //MCS rate initialized here
1239 {
1240 u8* RegHTSuppRateSets = &(ieee->RegHTSuppRateSet[0]);
1241 RegHTSuppRateSets[0] = 0xFF; //support MCS 0~7
1242 RegHTSuppRateSets[1] = 0xFF; //support MCS 8~15
1243 RegHTSuppRateSets[4] = 0x01; //support MCS 32
1244 }
1245 }
1246 /********************************************************************************************************************
1247 *function: initialize Bss HT structure(struct PBSS_HT)
1248 * input: PBSS_HT pBssHT //to be initialized
1249 * output: none
1250 * return: none
1251 * notice: This function is called when initialize network structure
1252 ********************************************************************************************************************/
1253 void HTInitializeBssDesc(PBSS_HT pBssHT)
1254 {
1255
1256 pBssHT->bdSupportHT = false;
1257 memset(pBssHT->bdHTCapBuf, 0, sizeof(pBssHT->bdHTCapBuf));
1258 pBssHT->bdHTCapLen = 0;
1259 memset(pBssHT->bdHTInfoBuf, 0, sizeof(pBssHT->bdHTInfoBuf));
1260 pBssHT->bdHTInfoLen = 0;
1261
1262 pBssHT->bdHTSpecVer= HT_SPEC_VER_IEEE;
1263
1264 pBssHT->bdRT2RTAggregation = false;
1265 pBssHT->bdRT2RTLongSlotTime = false;
1266 }
1267 /********************************************************************************************************************
1268 *function: initialize Bss HT structure(struct PBSS_HT)
1269 * input: struct ieee80211_device *ieee
1270 * struct ieee80211_network *pNetwork //usually current network we are live in
1271 * output: none
1272 * return: none
1273 * notice: This function should ONLY be called before association
1274 ********************************************************************************************************************/
1275 void HTResetSelfAndSavePeerSetting(struct ieee80211_device* ieee, struct ieee80211_network * pNetwork)
1276 {
1277 PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo;
1278 // u16 nMaxAMSDUSize;
1279 // PHT_CAPABILITY_ELE pPeerHTCap = (PHT_CAPABILITY_ELE)pNetwork->bssht.bdHTCapBuf;
1280 // PHT_INFORMATION_ELE pPeerHTInfo = (PHT_INFORMATION_ELE)pNetwork->bssht.bdHTInfoBuf;
1281 // u8* pMcsFilter;
1282 u8 bIOTAction = 0;
1283
1284 //
1285 // Save Peer Setting before Association
1286 //
1287 IEEE80211_DEBUG(IEEE80211_DL_HT, "==============>%s()\n", __FUNCTION__);
1288 /*unmark bEnableHT flag here is the same reason why unmarked in function ieee80211_softmac_new_net. WB 2008.09.10*/
1289 // if( pHTInfo->bEnableHT && pNetwork->bssht.bdSupportHT)
1290 if (pNetwork->bssht.bdSupportHT)
1291 {
1292 pHTInfo->bCurrentHTSupport = true;
1293 pHTInfo->ePeerHTSpecVer = pNetwork->bssht.bdHTSpecVer;
1294
1295 // Save HTCap and HTInfo information Element
1296 if(pNetwork->bssht.bdHTCapLen > 0 && pNetwork->bssht.bdHTCapLen <= sizeof(pHTInfo->PeerHTCapBuf))
1297 memcpy(pHTInfo->PeerHTCapBuf, pNetwork->bssht.bdHTCapBuf, pNetwork->bssht.bdHTCapLen);
1298
1299 if(pNetwork->bssht.bdHTInfoLen > 0 && pNetwork->bssht.bdHTInfoLen <= sizeof(pHTInfo->PeerHTInfoBuf))
1300 memcpy(pHTInfo->PeerHTInfoBuf, pNetwork->bssht.bdHTInfoBuf, pNetwork->bssht.bdHTInfoLen);
1301
1302 // Check whether RT to RT aggregation mode is enabled
1303 if(pHTInfo->bRegRT2RTAggregation)
1304 {
1305 pHTInfo->bCurrentRT2RTAggregation = pNetwork->bssht.bdRT2RTAggregation;
1306 pHTInfo->bCurrentRT2RTLongSlotTime = pNetwork->bssht.bdRT2RTLongSlotTime;
1307 }
1308 else
1309 {
1310 pHTInfo->bCurrentRT2RTAggregation = false;
1311 pHTInfo->bCurrentRT2RTLongSlotTime = false;
1312 }
1313
1314 // Determine the IOT Peer Vendor.
1315 HTIOTPeerDetermine(ieee);
1316
1317 // Decide IOT Action
1318 // Must be called after the parameter of pHTInfo->bCurrentRT2RTAggregation is decided
1319 pHTInfo->IOTAction = 0;
1320 bIOTAction = HTIOTActIsDisableMCS14(ieee, pNetwork->bssid);
1321 if(bIOTAction)
1322 pHTInfo->IOTAction |= HT_IOT_ACT_DISABLE_MCS14;
1323 bIOTAction = HTIOTActIsForcedCTS2Self(ieee, pNetwork);
1324 if(bIOTAction)
1325 pHTInfo->IOTAction |= HT_IOT_ACT_FORCED_CTS2SELF;
1326
1327 bIOTAction = HTIOTActIsDisableMCS15(ieee);
1328 if(bIOTAction)
1329 pHTInfo->IOTAction |= HT_IOT_ACT_DISABLE_MCS15;
1330
1331 bIOTAction = HTIOTActIsDisableMCSTwoSpatialStream(ieee, pNetwork->bssid);
1332 if(bIOTAction)
1333 pHTInfo->IOTAction |= HT_IOT_ACT_DISABLE_ALL_2SS;
1334
1335
1336 bIOTAction = HTIOTActIsDisableEDCATurbo(ieee, pNetwork->bssid);
1337 if(bIOTAction)
1338 pHTInfo->IOTAction |= HT_IOT_ACT_DISABLE_EDCA_TURBO;
1339
1340 bIOTAction = HTIOTActIsMgntUseCCK6M(pNetwork);
1341 if(bIOTAction)
1342 pHTInfo->IOTAction |= HT_IOT_ACT_MGNT_USE_CCK_6M;
1343
1344 bIOTAction = HTIOTActIsCCDFsync(pNetwork->bssid);
1345 if(bIOTAction)
1346 pHTInfo->IOTAction |= HT_IOT_ACT_CDD_FSYNC;
1347
1348 bIOTAction = HTIOTActIsNullDataPowerSaving(ieee, pNetwork);
1349 if(bIOTAction)
1350 pHTInfo->IOTAction |= HT_IOT_ACT_NULL_DATA_POWER_SAVING;
1351
1352 }
1353 else
1354 {
1355 pHTInfo->bCurrentHTSupport = false;
1356 pHTInfo->bCurrentRT2RTAggregation = false;
1357 pHTInfo->bCurrentRT2RTLongSlotTime = false;
1358
1359 pHTInfo->IOTAction = 0;
1360 }
1361
1362 }
1363
1364 void HTUpdateSelfAndPeerSetting(struct ieee80211_device* ieee, struct ieee80211_network * pNetwork)
1365 {
1366 PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo;
1367 // PHT_CAPABILITY_ELE pPeerHTCap = (PHT_CAPABILITY_ELE)pNetwork->bssht.bdHTCapBuf;
1368 PHT_INFORMATION_ELE pPeerHTInfo = (PHT_INFORMATION_ELE)pNetwork->bssht.bdHTInfoBuf;
1369
1370 if(pHTInfo->bCurrentHTSupport)
1371 {
1372 //
1373 // Config current operation mode.
1374 //
1375 if(pNetwork->bssht.bdHTInfoLen != 0)
1376 pHTInfo->CurrentOpMode = pPeerHTInfo->OptMode;
1377
1378 //
1379 // <TODO: Config according to OBSS non-HT STA present!!>
1380 //
1381 }
1382 }
1383
1384 void HTUseDefaultSetting(struct ieee80211_device* ieee)
1385 {
1386 PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo;
1387 // u8 regBwOpMode;
1388
1389 if(pHTInfo->bEnableHT)
1390 {
1391 pHTInfo->bCurrentHTSupport = true;
1392
1393 pHTInfo->bCurSuppCCK = pHTInfo->bRegSuppCCK;
1394
1395 pHTInfo->bCurBW40MHz = pHTInfo->bRegBW40MHz;
1396
1397 pHTInfo->bCurShortGI20MHz= pHTInfo->bRegShortGI20MHz;
1398
1399 pHTInfo->bCurShortGI40MHz= pHTInfo->bRegShortGI40MHz;
1400
1401 pHTInfo->bCurrent_AMSDU_Support = pHTInfo->bAMSDU_Support;
1402
1403 pHTInfo->nCurrent_AMSDU_MaxSize = pHTInfo->nAMSDU_MaxSize;
1404
1405 pHTInfo->bCurrentAMPDUEnable = pHTInfo->bAMPDUEnable;
1406
1407 pHTInfo->CurrentAMPDUFactor = pHTInfo->AMPDU_Factor;
1408
1409 pHTInfo->CurrentMPDUDensity = pHTInfo->CurrentMPDUDensity;
1410
1411 // Set BWOpMode register
1412
1413 //update RATR index0
1414 HTFilterMCSRate(ieee, ieee->Regdot11HTOperationalRateSet, ieee->dot11HTOperationalRateSet);
1415 //function below is not implemented at all. WB
1416 #ifdef TODO
1417 Adapter->HalFunc.InitHalRATRTableHandler( Adapter, &pMgntInfo->dot11OperationalRateSet, pMgntInfo->dot11HTOperationalRateSet);
1418 #endif
1419 ieee->HTHighestOperaRate = HTGetHighestMCSRate(ieee, ieee->dot11HTOperationalRateSet, MCS_FILTER_ALL);
1420 ieee->HTCurrentOperaRate = ieee->HTHighestOperaRate;
1421
1422 }
1423 else
1424 {
1425 pHTInfo->bCurrentHTSupport = false;
1426 }
1427 return;
1428 }
1429 /********************************************************************************************************************
1430 *function: check whether HT control field exists
1431 * input: struct ieee80211_device *ieee
1432 * u8* pFrame //coming skb->data
1433 * output: none
1434 * return: return true if HT control field exists(false otherwise)
1435 * notice:
1436 ********************************************************************************************************************/
1437 u8 HTCCheck(struct ieee80211_device* ieee, u8* pFrame)
1438 {
1439 if(ieee->pHTInfo->bCurrentHTSupport)
1440 {
1441 if( (IsQoSDataFrame(pFrame) && Frame_Order(pFrame)) == 1)
1442 {
1443 IEEE80211_DEBUG(IEEE80211_DL_HT, "HT CONTROL FILED EXIST!!\n");
1444 return true;
1445 }
1446 }
1447 return false;
1448 }
1449
1450 //
1451 // This function set bandwidth mode in protocol layer.
1452 //
1453 void HTSetConnectBwMode(struct ieee80211_device* ieee, HT_CHANNEL_WIDTH Bandwidth, HT_EXTCHNL_OFFSET Offset)
1454 {
1455 PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo;
1456 // u32 flags = 0;
1457
1458 if(pHTInfo->bRegBW40MHz == false)
1459 return;
1460
1461
1462
1463 // To reduce dummy operation
1464 // if((pHTInfo->bCurBW40MHz==false && Bandwidth==HT_CHANNEL_WIDTH_20) ||
1465 // (pHTInfo->bCurBW40MHz==true && Bandwidth==HT_CHANNEL_WIDTH_20_40 && Offset==pHTInfo->CurSTAExtChnlOffset))
1466 // return;
1467
1468 // spin_lock_irqsave(&(ieee->bw_spinlock), flags);
1469 if(pHTInfo->bSwBwInProgress) {
1470 // spin_unlock_irqrestore(&(ieee->bw_spinlock), flags);
1471 return;
1472 }
1473 //if in half N mode, set to 20M bandwidth please 09.08.2008 WB.
1474 if(Bandwidth==HT_CHANNEL_WIDTH_20_40 && (!ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev)))
1475 {
1476 // Handle Illegal extention channel offset!!
1477 if(ieee->current_network.channel<2 && Offset==HT_EXTCHNL_OFFSET_LOWER)
1478 Offset = HT_EXTCHNL_OFFSET_NO_EXT;
1479 if(Offset==HT_EXTCHNL_OFFSET_UPPER || Offset==HT_EXTCHNL_OFFSET_LOWER) {
1480 pHTInfo->bCurBW40MHz = true;
1481 pHTInfo->CurSTAExtChnlOffset = Offset;
1482 } else {
1483 pHTInfo->bCurBW40MHz = false;
1484 pHTInfo->CurSTAExtChnlOffset = HT_EXTCHNL_OFFSET_NO_EXT;
1485 }
1486 } else {
1487 pHTInfo->bCurBW40MHz = false;
1488 pHTInfo->CurSTAExtChnlOffset = HT_EXTCHNL_OFFSET_NO_EXT;
1489 }
1490
1491 pHTInfo->bSwBwInProgress = true;
1492
1493 // TODO: 2007.7.13 by Emily Wait 2000ms in order to garantee that switching
1494 // bandwidth is executed after scan is finished. It is a temporal solution
1495 // because software should ganrantee the last operation of switching bandwidth
1496 // is executed properlly.
1497 HTSetConnectBwModeCallback(ieee);
1498
1499 // spin_unlock_irqrestore(&(ieee->bw_spinlock), flags);
1500 }
1501
1502 void HTSetConnectBwModeCallback(struct ieee80211_device* ieee)
1503 {
1504 PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo;
1505
1506 IEEE80211_DEBUG(IEEE80211_DL_HT, "======>%s()\n", __FUNCTION__);
1507
1508 if(pHTInfo->bCurBW40MHz)
1509 {
1510 if(pHTInfo->CurSTAExtChnlOffset==HT_EXTCHNL_OFFSET_UPPER)
1511 ieee->set_chan(ieee->dev, ieee->current_network.channel+2);
1512 else if(pHTInfo->CurSTAExtChnlOffset==HT_EXTCHNL_OFFSET_LOWER)
1513 ieee->set_chan(ieee->dev, ieee->current_network.channel-2);
1514 else
1515 ieee->set_chan(ieee->dev, ieee->current_network.channel);
1516
1517 ieee->SetBWModeHandler(ieee->dev, HT_CHANNEL_WIDTH_20_40, pHTInfo->CurSTAExtChnlOffset);
1518 } else {
1519 ieee->set_chan(ieee->dev, ieee->current_network.channel);
1520 ieee->SetBWModeHandler(ieee->dev, HT_CHANNEL_WIDTH_20, HT_EXTCHNL_OFFSET_NO_EXT);
1521 }
1522
1523 pHTInfo->bSwBwInProgress = false;
1524 }
Tomato firmware and modifications.