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