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rtl819x_HTProc.c
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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  * *****************************************************************************************************************/
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;
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;
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  * *****************************************************************************************************************/
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", __FUNCTION__);
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  * *****************************************************************************************************************/
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", __FUNCTION__);
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 */
223 {
224  bool retValue = false;
225  PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo;
226 
227  if(pHTInfo->bCurrentHTSupport == false ) // wireless is n mode
228  retValue = false;
229  else if(pHTInfo->bRegBW40MHz == false) // 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 
241 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 == false ) // 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 
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 
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  * *****************************************************************************************************************/
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 
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  * *****************************************************************************************************************/
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  * *****************************************************************************************************************/
416 u8 HTIOTActIsDisableMCS14(struct ieee80211_device* ieee, u8* PeerMacAddr)
417 {
418  u8 ret = 0;
419  return ret;
420  }
421 
422 
436 {
437  bool retValue = false;
438 
439 #ifdef TODO
440  // Apply for 819u only
441 #if (HAL_CODE_BASE==RTL8192)
442 
443 #if (DEV_BUS_TYPE == USB_INTERFACE)
444  // Alway disable MCS15 by Jerry Chang's request.by Emily, 2008.04.15
445  retValue = true;
446 #elif (DEV_BUS_TYPE == PCI_INTERFACE)
447  // Enable MCS15 if the peer is Cisco AP. by Emily, 2008.05.12
448 // if(pBssDesc->bCiscoCapExist)
449 // retValue = false;
450 // else
451  retValue = false;
452 #endif
453 #endif
454 #endif
455  // Jerry Chang suggest that 8190 1x2 does not need to disable MCS15
456 
457  return retValue;
458 }
459 
473 {
474  bool retValue = false;
475 
476 #ifdef TODO
477  // Apply for 819u only
478 #endif
479  return retValue;
480 }
481 
482 /********************************************************************************************************************
483  *function: Check whether driver should disable EDCA turbo mode
484  * input: struct ieee80211_device* ieee
485  * u8* PeerMacAddr
486  * output: none
487  * return: return 1 if driver should disable EDCA turbo mode(otherwise return 0)
488  * *****************************************************************************************************************/
490 {
491  u8 retValue = false; // default enable EDCA Turbo mode.
492  // Set specific EDCA parameter for different AP in DM handler.
493 
494  return retValue;
495 }
496 
497 /********************************************************************************************************************
498  *function: Check whether we need to use OFDM to sned MGNT frame for broadcom AP
499  * input: struct ieee80211_network *network //current network we live
500  * output: none
501  * return: return 1 if true
502  * *****************************************************************************************************************/
504 {
505  u8 retValue = 0;
506 
507  // 2008/01/25 MH Judeg if we need to use OFDM to sned MGNT frame for broadcom AP.
508  // 2008/01/28 MH We must prevent that we select null bssid to link.
509 
510  if(network->broadcom_cap_exist)
511  {
512  retValue = 1;
513  }
514 
515  return retValue;
516 }
517 
518 u8 HTIOTActIsCCDFsync(u8* PeerMacAddr)
519 {
520  u8 retValue = 0;
521  if( (memcmp(PeerMacAddr, UNKNOWN_BORADCOM, 3)==0) ||
522  (memcmp(PeerMacAddr, LINKSYSWRT330_LINKSYSWRT300_BROADCOM, 3)==0) ||
523  (memcmp(PeerMacAddr, LINKSYSWRT350_LINKSYSWRT150_BROADCOM, 3) ==0))
524  {
525  retValue = 1;
526  }
527 
528  return retValue;
529 }
530 
532  PRT_HIGH_THROUGHPUT pHTInfo
533 )
534 {
535  pHTInfo->IOTAction = 0;
536  pHTInfo->IOTPeer = HT_IOT_PEER_UNKNOWN;
537 }
538 
539 
540 /********************************************************************************************************************
541  *function: Construct Capablility Element in Beacon... if HTEnable is turned on
542  * input: struct ieee80211_device* ieee
543  * u8* posHTCap //pointer to store Capability Ele
544  * u8* len //store length of CE
545  * u8 IsEncrypt //whether encrypt, needed further
546  * output: none
547  * return: none
548  * notice: posHTCap can't be null and should be initialized before.
549  * *****************************************************************************************************************/
550 void HTConstructCapabilityElement(struct ieee80211_device* ieee, u8* posHTCap, u8* len, u8 IsEncrypt)
551 {
552  PRT_HIGH_THROUGHPUT pHT = ieee->pHTInfo;
553  PHT_CAPABILITY_ELE pCapELE = NULL;
554  //u8 bIsDeclareMCS13;
555 
556  if ((posHTCap == NULL) || (pHT == NULL))
557  {
558  IEEE80211_DEBUG(IEEE80211_DL_ERR, "posHTCap or pHTInfo can't be null in HTConstructCapabilityElement()\n");
559  return;
560  }
561  memset(posHTCap, 0, *len);
562  if(pHT->ePeerHTSpecVer == HT_SPEC_VER_EWC)
563  {
564  u8 EWC11NHTCap[] = {0x00, 0x90, 0x4c, 0x33}; // For 11n EWC definition, 2007.07.17, by Emily
565  memcpy(posHTCap, EWC11NHTCap, sizeof(EWC11NHTCap));
566  pCapELE = (PHT_CAPABILITY_ELE)&(posHTCap[4]);
567  }else
568  {
569  pCapELE = (PHT_CAPABILITY_ELE)posHTCap;
570  }
571 
572 
573  //HT capability info
574  pCapELE->AdvCoding = 0; // This feature is not supported now!!
575  if(ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev))
576  {
577  pCapELE->ChlWidth = 0;
578  }
579  else
580  {
581  pCapELE->ChlWidth = (pHT->bRegBW40MHz?1:0);
582  }
583 
584 // pCapELE->ChlWidth = (pHT->bRegBW40MHz?1:0);
585  pCapELE->MimoPwrSave = pHT->SelfMimoPs;
586  pCapELE->GreenField = 0; // This feature is not supported now!!
587  pCapELE->ShortGI20Mhz = 1; // We can receive Short GI!!
588  pCapELE->ShortGI40Mhz = 1; // We can receive Short GI!!
589  //DbgPrint("TX HT cap/info ele BW=%d SG20=%d SG40=%d\n\r",
590  //pCapELE->ChlWidth, pCapELE->ShortGI20Mhz, pCapELE->ShortGI40Mhz);
591  pCapELE->TxSTBC = 1;
592  pCapELE->RxSTBC = 0;
593  pCapELE->DelayBA = 0; // Do not support now!!
594  pCapELE->MaxAMSDUSize = (MAX_RECEIVE_BUFFER_SIZE>=7935)?1:0;
595  pCapELE->DssCCk = ((pHT->bRegBW40MHz)?(pHT->bRegSuppCCK?1:0):0);
596  pCapELE->PSMP = 0; // Do not support now!!
597  pCapELE->LSigTxopProtect = 0; // Do not support now!!
598 
599 
600  //MAC HT parameters info
601  // TODO: Nedd to take care of this part
602  IEEE80211_DEBUG(IEEE80211_DL_HT, "TX HT cap/info ele BW=%d MaxAMSDUSize:%d DssCCk:%d\n", pCapELE->ChlWidth, pCapELE->MaxAMSDUSize, pCapELE->DssCCk);
603 
604  if( IsEncrypt)
605  {
606  pCapELE->MPDUDensity = 7; // 8us
607  pCapELE->MaxRxAMPDUFactor = 2; // 2 is for 32 K and 3 is 64K
608  }
609  else
610  {
611  pCapELE->MaxRxAMPDUFactor = 3; // 2 is for 32 K and 3 is 64K
612  pCapELE->MPDUDensity = 0; // no density
613  }
614 
615  //Supported MCS set
616  memcpy(pCapELE->MCS, ieee->Regdot11HTOperationalRateSet, 16);
618  pCapELE->MCS[1] &= 0x7f;
619 
621  pCapELE->MCS[1] &= 0xbf;
622 
624  pCapELE->MCS[1] &= 0x00;
625 
626  // 2008.06.12
627  // For RTL819X, if pairwisekey = wep/tkip, ap is ralink, we support only MCS0~7.
628  if(ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev))
629  {
630  int i;
631  for(i = 1; i< 16; i++)
632  pCapELE->MCS[i] = 0;
633  }
634 
635  //Extended HT Capability Info
636  memset(&pCapELE->ExtHTCapInfo, 0, 2);
637 
638 
639  //TXBF Capabilities
640  memset(pCapELE->TxBFCap, 0, 4);
641 
642  //Antenna Selection Capabilities
643  pCapELE->ASCap = 0;
644 //add 2 to give space for element ID and len when construct frames
645  if(pHT->ePeerHTSpecVer == HT_SPEC_VER_EWC)
646  *len = 30 + 2;
647  else
648  *len = 26 + 2;
649 
650 
651 
652 // IEEE80211_DEBUG_DATA(IEEE80211_DL_DATA | IEEE80211_DL_HT, posHTCap, *len -2);
653 
654  //Print each field in detail. Driver should not print out this message by default
655 // HTDebugHTCapability(posHTCap, (u8*)"HTConstructCapability()");
656  return;
657 
658 }
659 /********************************************************************************************************************
660  *function: Construct Information Element in Beacon... if HTEnable is turned on
661  * input: struct ieee80211_device* ieee
662  * u8* posHTCap //pointer to store Information Ele
663  * u8* len //store len of
664  * u8 IsEncrypt //whether encrypt, needed further
665  * output: none
666  * return: none
667  * notice: posHTCap can't be null and be initialized before. only AP and IBSS sta should do this
668  * *****************************************************************************************************************/
669 void HTConstructInfoElement(struct ieee80211_device* ieee, u8* posHTInfo, u8* len, u8 IsEncrypt)
670 {
671  PRT_HIGH_THROUGHPUT pHT = ieee->pHTInfo;
672  PHT_INFORMATION_ELE pHTInfoEle = (PHT_INFORMATION_ELE)posHTInfo;
673  if ((posHTInfo == NULL) || (pHTInfoEle == NULL))
674  {
675  IEEE80211_DEBUG(IEEE80211_DL_ERR, "posHTInfo or pHTInfoEle can't be null in HTConstructInfoElement()\n");
676  return;
677  }
678 
679  memset(posHTInfo, 0, *len);
680  if ( (ieee->iw_mode == IW_MODE_ADHOC) || (ieee->iw_mode == IW_MODE_MASTER)) //ap mode is not currently supported
681  {
682  pHTInfoEle->ControlChl = ieee->current_network.channel;
683  pHTInfoEle->ExtChlOffset = ((pHT->bRegBW40MHz == false)?HT_EXTCHNL_OFFSET_NO_EXT:
684  (ieee->current_network.channel<=6)?
686  pHTInfoEle->RecommemdedTxWidth = pHT->bRegBW40MHz;
687  pHTInfoEle->RIFS = 0;
688  pHTInfoEle->PSMPAccessOnly = 0;
689  pHTInfoEle->SrvIntGranularity = 0;
690  pHTInfoEle->OptMode = pHT->CurrentOpMode;
691  pHTInfoEle->NonGFDevPresent = 0;
692  pHTInfoEle->DualBeacon = 0;
693  pHTInfoEle->SecondaryBeacon = 0;
694  pHTInfoEle->LSigTxopProtectFull = 0;
695  pHTInfoEle->PcoActive = 0;
696  pHTInfoEle->PcoPhase = 0;
697 
698  memset(pHTInfoEle->BasicMSC, 0, 16);
699 
700 
701  *len = 22 + 2; //same above
702 
703  }
704  else
705  {
706  //STA should not generate High Throughput Information Element
707  *len = 0;
708  }
709  //IEEE80211_DEBUG_DATA(IEEE80211_DL_DATA | IEEE80211_DL_HT, posHTInfo, *len - 2);
710  //HTDebugHTInfo(posHTInfo, "HTConstructInforElement");
711  return;
712 }
713 
714 /*
715  * According to experiment, Realtek AP to STA (based on rtl8190) may achieve best performance
716  * if both STA and AP set limitation of aggregation size to 32K, that is, set AMPDU density to 2
717  * (Ref: IEEE 11n specification). However, if Realtek STA associates to other AP, STA should set
718  * limitation of aggregation size to 8K, otherwise, performance of traffic stream from STA to AP
719  * will be much less than the traffic stream from AP to STA if both of the stream runs concurrently
720  * at the same time.
721  *
722  * Frame Format
723  * Element ID Length OUI Type1 Reserved
724  * 1 byte 1 byte 3 bytes 1 byte 1 byte
725  *
726  * OUI = 0x00, 0xe0, 0x4c,
727  * Type = 0x02
728  * Reserved = 0x00
729  *
730  * 2007.8.21 by Emily
731 */
732 /********************************************************************************************************************
733  *function: Construct Information Element in Beacon... in RT2RT condition
734  * input: struct ieee80211_device* ieee
735  * u8* posRT2RTAgg //pointer to store Information Ele
736  * u8* len //store len
737  * output: none
738  * return: none
739  * notice:
740  * *****************************************************************************************************************/
741 void HTConstructRT2RTAggElement(struct ieee80211_device* ieee, u8* posRT2RTAgg, u8* len)
742 {
743  if (posRT2RTAgg == NULL) {
744  IEEE80211_DEBUG(IEEE80211_DL_ERR, "posRT2RTAgg can't be null in HTConstructRT2RTAggElement()\n");
745  return;
746  }
747  memset(posRT2RTAgg, 0, *len);
748  *posRT2RTAgg++ = 0x00;
749  *posRT2RTAgg++ = 0xe0;
750  *posRT2RTAgg++ = 0x4c;
751  *posRT2RTAgg++ = 0x02;
752  *posRT2RTAgg++ = 0x01;
753  *posRT2RTAgg = 0x10;//*posRT2RTAgg = 0x02;
754 
755  if(ieee->bSupportRemoteWakeUp) {
756  *posRT2RTAgg |= 0x08;//RT_HT_CAP_USE_WOW;
757  }
758 
759  *len = 6 + 2;
760  return;
761 #ifdef TODO
762 #if (HAL_CODE_BASE == RTL8192 && DEV_BUS_TYPE == USB_INTERFACE)
763  /*
764  //Emily. If it is required to Ask Realtek AP to send AMPDU during AES mode, enable this
765  section of code.
766  if(IS_UNDER_11N_AES_MODE(Adapter))
767  {
768  posRT2RTAgg->Octet[5] |=RT_HT_CAP_USE_AMPDU;
769  }else
770  {
771  posRT2RTAgg->Octet[5] &= 0xfb;
772  }
773  */
774 
775 #else
776  // Do Nothing
777 #endif
778 
779  posRT2RTAgg->Length = 6;
780 #endif
781 
782 
783 
784 
785 }
786 
787 
788 /********************************************************************************************************************
789  *function: Pick the right Rate Adaptive table to use
790  * input: struct ieee80211_device* ieee
791  * u8* pOperateMCS //A pointer to MCS rate bitmap
792  * return: always we return true
793  * notice:
794  * *****************************************************************************************************************/
795 u8 HT_PickMCSRate(struct ieee80211_device* ieee, u8* pOperateMCS)
796 {
797  u8 i;
798  if (pOperateMCS == NULL)
799  {
800  IEEE80211_DEBUG(IEEE80211_DL_ERR, "pOperateMCS can't be null in HT_PickMCSRate()\n");
801  return false;
802  }
803 
804  switch(ieee->mode)
805  {
806  case IEEE_A:
807  case IEEE_B:
808  case IEEE_G:
809  //legacy rate routine handled at selectedrate
810 
811  //no MCS rate
812  for(i=0;i<=15;i++){
813  pOperateMCS[i] = 0;
814  }
815  break;
816 
817  case IEEE_N_24G: //assume CCK rate ok
818  case IEEE_N_5G:
819  // Legacy part we only use 6, 5.5,2,1 for N_24G and 6 for N_5G.
820  // Legacy part shall be handled at SelectRateSet().
821 
822  //HT part
823  // TODO: may be different if we have different number of antenna
824  pOperateMCS[0] &=RATE_ADPT_1SS_MASK; //support MCS 0~7
825  pOperateMCS[1] &=RATE_ADPT_2SS_MASK;
826  pOperateMCS[3] &=RATE_ADPT_MCS32_MASK;
827  break;
828 
829  //should never reach here
830  default:
831 
832  break;
833 
834  }
835 
836  return true;
837 }
838 
839 /*
840 * Description:
841 * This function will get the highest speed rate in input MCS set.
842 *
843 * /param Adapter Pionter to Adapter entity
844 * pMCSRateSet Pointer to MCS rate bitmap
845 * pMCSFilter Pointer to MCS rate filter
846 *
847 * /return Highest MCS rate included in pMCSRateSet and filtered by pMCSFilter.
848 *
849 */
850 /********************************************************************************************************************
851  *function: This function will get the highest speed rate in input MCS set.
852  * input: struct ieee80211_device* ieee
853  * u8* pMCSRateSet //Pointer to MCS rate bitmap
854  * u8* pMCSFilter //Pointer to MCS rate filter
855  * return: Highest MCS rate included in pMCSRateSet and filtered by pMCSFilter
856  * notice:
857  * *****************************************************************************************************************/
858 u8 HTGetHighestMCSRate(struct ieee80211_device* ieee, u8* pMCSRateSet, u8* pMCSFilter)
859 {
860  u8 i, j;
861  u8 bitMap;
862  u8 mcsRate = 0;
863  u8 availableMcsRate[16];
864  if (pMCSRateSet == NULL || pMCSFilter == NULL)
865  {
866  IEEE80211_DEBUG(IEEE80211_DL_ERR, "pMCSRateSet or pMCSFilter can't be null in HTGetHighestMCSRate()\n");
867  return false;
868  }
869  for(i=0; i<16; i++)
870  availableMcsRate[i] = pMCSRateSet[i] & pMCSFilter[i];
871 
872  for(i = 0; i < 16; i++)
873  {
874  if(availableMcsRate[i] != 0)
875  break;
876  }
877  if(i == 16)
878  return false;
879 
880  for(i = 0; i < 16; i++)
881  {
882  if(availableMcsRate[i] != 0)
883  {
884  bitMap = availableMcsRate[i];
885  for(j = 0; j < 8; j++)
886  {
887  if((bitMap%2) != 0)
888  {
889  if(HTMcsToDataRate(ieee, (8*i+j)) > HTMcsToDataRate(ieee, mcsRate))
890  mcsRate = (8*i+j);
891  }
892  bitMap = bitMap>>1;
893  }
894  }
895  }
896  return (mcsRate|0x80);
897 }
898 
899 
900 
901 /*
902 **
903 **1.Filter our operation rate set with AP's rate set
904 **2.shall reference channel bandwidth, STBC, Antenna number
905 **3.generate rate adative table for firmware
906 **David 20060906
907 **
908 ** \pHTSupportedCap: the connected STA's supported rate Capability element
909 */
910 u8 HTFilterMCSRate( struct ieee80211_device* ieee, u8* pSupportMCS, u8* pOperateMCS)
911 {
912 
913  u8 i=0;
914 
915  // filter out operational rate set not supported by AP, the length of it is 16
916  for(i=0;i<=15;i++){
917  pOperateMCS[i] = ieee->Regdot11HTOperationalRateSet[i]&pSupportMCS[i];
918  }
919 
920 
921  // TODO: adjust our operational rate set according to our channel bandwidth, STBC and Antenna number
922 
923  // TODO: fill suggested rate adaptive rate index and give firmware info using Tx command packet
924  // we also shall suggested the first start rate set according to our singal strength
925  HT_PickMCSRate(ieee, pOperateMCS);
926 
927  // For RTL819X, if pairwisekey = wep/tkip, we support only MCS0~7.
928  if(ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev))
929  pOperateMCS[1] = 0;
930 
931  //
932  // For RTL819X, we support only MCS0~15.
933  // And also, we do not know how to use MCS32 now.
934  //
935  for(i=2; i<=15; i++)
936  pOperateMCS[i] = 0;
937 
938  return true;
939 }
940 void HTSetConnectBwMode(struct ieee80211_device* ieee, HT_CHANNEL_WIDTH Bandwidth, HT_EXTCHNL_OFFSET Offset);
941 void HTOnAssocRsp(struct ieee80211_device *ieee)
942 {
943  PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo;
944  PHT_CAPABILITY_ELE pPeerHTCap = NULL;
945  PHT_INFORMATION_ELE pPeerHTInfo = NULL;
946  u16 nMaxAMSDUSize = 0;
947  u8* pMcsFilter = NULL;
948 
949  static u8 EWC11NHTCap[] = {0x00, 0x90, 0x4c, 0x33}; // For 11n EWC definition, 2007.07.17, by Emily
950  static u8 EWC11NHTInfo[] = {0x00, 0x90, 0x4c, 0x34}; // For 11n EWC definition, 2007.07.17, by Emily
951 
952  if( pHTInfo->bCurrentHTSupport == false )
953  {
954  IEEE80211_DEBUG(IEEE80211_DL_ERR, "<=== HTOnAssocRsp(): HT_DISABLE\n");
955  return;
956  }
957  IEEE80211_DEBUG(IEEE80211_DL_HT, "===> HTOnAssocRsp_wq(): HT_ENABLE\n");
958 // IEEE80211_DEBUG_DATA(IEEE80211_DL_DATA, pHTInfo->PeerHTCapBuf, sizeof(HT_CAPABILITY_ELE));
959 // IEEE80211_DEBUG_DATA(IEEE80211_DL_DATA, pHTInfo->PeerHTInfoBuf, sizeof(HT_INFORMATION_ELE));
960 
961 // HTDebugHTCapability(pHTInfo->PeerHTCapBuf,"HTOnAssocRsp_wq");
962 // HTDebugHTInfo(pHTInfo->PeerHTInfoBuf,"HTOnAssocRsp_wq");
963  //
964  if(!memcmp(pHTInfo->PeerHTCapBuf,EWC11NHTCap, sizeof(EWC11NHTCap)))
965  pPeerHTCap = (PHT_CAPABILITY_ELE)(&pHTInfo->PeerHTCapBuf[4]);
966  else
967  pPeerHTCap = (PHT_CAPABILITY_ELE)(pHTInfo->PeerHTCapBuf);
968 
969  if(!memcmp(pHTInfo->PeerHTInfoBuf, EWC11NHTInfo, sizeof(EWC11NHTInfo)))
970  pPeerHTInfo = (PHT_INFORMATION_ELE)(&pHTInfo->PeerHTInfoBuf[4]);
971  else
972  pPeerHTInfo = (PHT_INFORMATION_ELE)(pHTInfo->PeerHTInfoBuf);
973 
974 
976  // Configurations:
978  IEEE80211_DEBUG_DATA(IEEE80211_DL_DATA|IEEE80211_DL_HT, pPeerHTCap, sizeof(HT_CAPABILITY_ELE));
979 // IEEE80211_DEBUG_DATA(IEEE80211_DL_DATA|IEEE80211_DL_HT, pPeerHTInfo, sizeof(HT_INFORMATION_ELE));
980  // Config Supported Channel Width setting
981  //
982  HTSetConnectBwMode(ieee, (HT_CHANNEL_WIDTH)(pPeerHTCap->ChlWidth), (HT_EXTCHNL_OFFSET)(pPeerHTInfo->ExtChlOffset));
983 
984 // if(pHTInfo->bCurBW40MHz == true)
985  pHTInfo->bCurTxBW40MHz = ((pPeerHTInfo->RecommemdedTxWidth == 1)?true:false);
986 
987  //
988  // Update short GI/ long GI setting
989  //
990  // TODO:
991  pHTInfo->bCurShortGI20MHz=
992  ((pHTInfo->bRegShortGI20MHz)?((pPeerHTCap->ShortGI20Mhz==1)?true:false):false);
993  pHTInfo->bCurShortGI40MHz=
994  ((pHTInfo->bRegShortGI40MHz)?((pPeerHTCap->ShortGI40Mhz==1)?true:false):false);
995 
996  //
997  // Config TX STBC setting
998  //
999  // TODO:
1000 
1001  //
1002  // Config DSSS/CCK mode in 40MHz mode
1003  //
1004  // TODO:
1005  pHTInfo->bCurSuppCCK =
1006  ((pHTInfo->bRegSuppCCK)?((pPeerHTCap->DssCCk==1)?true:false):false);
1007 
1008 
1009  //
1010  // Config and configure A-MSDU setting
1011  //
1012  pHTInfo->bCurrent_AMSDU_Support = pHTInfo->bAMSDU_Support;
1013 
1014  nMaxAMSDUSize = (pPeerHTCap->MaxAMSDUSize==0)?3839:7935;
1015 
1016  if(pHTInfo->nAMSDU_MaxSize > nMaxAMSDUSize )
1017  pHTInfo->nCurrent_AMSDU_MaxSize = nMaxAMSDUSize;
1018  else
1019  pHTInfo->nCurrent_AMSDU_MaxSize = pHTInfo->nAMSDU_MaxSize;
1020 
1021 
1022  //
1023  // Config A-MPDU setting
1024  //
1025  pHTInfo->bCurrentAMPDUEnable = pHTInfo->bAMPDUEnable;
1026 
1027  // <1> Decide AMPDU Factor
1028 
1029  // By Emily
1030  if(!pHTInfo->bRegRT2RTAggregation)
1031  {
1032  // Decide AMPDU Factor according to protocol handshake
1033  if(pHTInfo->AMPDU_Factor > pPeerHTCap->MaxRxAMPDUFactor)
1034  pHTInfo->CurrentAMPDUFactor = pPeerHTCap->MaxRxAMPDUFactor;
1035  else
1036  pHTInfo->CurrentAMPDUFactor = pHTInfo->AMPDU_Factor;
1037 
1038  }else
1039  {
1040  // Set MPDU density to 2 to Realtek AP, and set it to 0 for others
1041  // Replace MPDU factor declared in original association response frame format. 2007.08.20 by Emily
1042  if (ieee->current_network.bssht.bdRT2RTAggregation)
1043  {
1044  if( ieee->pairwise_key_type != KEY_TYPE_NA)
1045  // Realtek may set 32k in security mode and 64k for others
1046  pHTInfo->CurrentAMPDUFactor = pPeerHTCap->MaxRxAMPDUFactor;
1047  else
1049  }else
1050  {
1051  if(pPeerHTCap->MaxRxAMPDUFactor < HT_AGG_SIZE_32K)
1052  pHTInfo->CurrentAMPDUFactor = pPeerHTCap->MaxRxAMPDUFactor;
1053  else
1055  }
1056  }
1057 
1058  // <2> Set AMPDU Minimum MPDU Start Spacing
1059  // 802.11n 3.0 section 9.7d.3
1060  if(pHTInfo->MPDU_Density > pPeerHTCap->MPDUDensity)
1061  pHTInfo->CurrentMPDUDensity = pHTInfo->MPDU_Density;
1062  else
1063  pHTInfo->CurrentMPDUDensity = pPeerHTCap->MPDUDensity;
1064  if(ieee->pairwise_key_type != KEY_TYPE_NA )
1065  pHTInfo->CurrentMPDUDensity = 7; // 8us
1066  // Force TX AMSDU
1067 
1068  // Lanhsin: mark for tmp to avoid deauth by ap from s3
1069  //if(memcmp(pMgntInfo->Bssid, NETGEAR834Bv2_BROADCOM, 3)==0)
1070  if(0)
1071  {
1072 
1073  pHTInfo->bCurrentAMPDUEnable = false;
1075  pHTInfo->ForcedAMSDUMaxSize = 7935;
1076 
1078  }
1079 
1080  // Rx Reorder Setting
1081  pHTInfo->bCurRxReorderEnable = pHTInfo->bRegRxReorderEnable;
1082 
1083  //
1084  // Filter out unsupported HT rate for this AP
1085  // Update RATR table
1086  // This is only for 8190 ,8192 or later product which using firmware to handle rate adaptive mechanism.
1087  //
1088 
1089  // Handle Ralink AP bad MCS rate set condition. Joseph.
1090  // This fix the bug of Ralink AP. This may be removed in the future.
1091  if(pPeerHTCap->MCS[0] == 0)
1092  pPeerHTCap->MCS[0] = 0xff;
1093 
1094  HTFilterMCSRate(ieee, pPeerHTCap->MCS, ieee->dot11HTOperationalRateSet);
1095 
1096  //
1097  // Config MIMO Power Save setting
1098  //
1099  pHTInfo->PeerMimoPs = pPeerHTCap->MimoPwrSave;
1100  if(pHTInfo->PeerMimoPs == MIMO_PS_STATIC)
1101  pMcsFilter = MCS_FILTER_1SS;
1102  else
1103  pMcsFilter = MCS_FILTER_ALL;
1104  //WB add for MCS8 bug
1105 // pMcsFilter = MCS_FILTER_1SS;
1106  ieee->HTHighestOperaRate = HTGetHighestMCSRate(ieee, ieee->dot11HTOperationalRateSet, pMcsFilter);
1107  ieee->HTCurrentOperaRate = ieee->HTHighestOperaRate;
1108 
1109  //
1110  // Config current operation mode.
1111  //
1112  pHTInfo->CurrentOpMode = pPeerHTInfo->OptMode;
1113 
1114 
1115 
1116 }
1117 
1118 void HTSetConnectBwModeCallback(struct ieee80211_device* ieee);
1119 /********************************************************************************************************************
1120  *function: initialize HT info(struct PRT_HIGH_THROUGHPUT)
1121  * input: struct ieee80211_device* ieee
1122  * output: none
1123  * return: none
1124  * notice: This function is called when * (1) MPInitialization Phase * (2) Receiving of Deauthentication from AP
1125 ********************************************************************************************************************/
1126 // TODO: Should this funciton be called when receiving of Disassociation?
1128 {
1129  PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo;
1130 
1131  //
1132  // These parameters will be reset when receiving deauthentication packet
1133  //
1134  IEEE80211_DEBUG(IEEE80211_DL_HT, "===========>%s()\n", __FUNCTION__);
1135  pHTInfo->bCurrentHTSupport = false;
1136 
1137  // 40MHz channel support
1138  pHTInfo->bCurBW40MHz = false;
1139  pHTInfo->bCurTxBW40MHz = false;
1140 
1141  // Short GI support
1142  pHTInfo->bCurShortGI20MHz = false;
1143  pHTInfo->bCurShortGI40MHz = false;
1144  pHTInfo->bForcedShortGI = false;
1145 
1146  // CCK rate support
1147  // This flag is set to true to support CCK rate by default.
1148  // It will be affected by "pHTInfo->bRegSuppCCK" and AP capabilities only when associate to
1149  // 11N BSS.
1150  pHTInfo->bCurSuppCCK = true;
1151 
1152  // AMSDU related
1153  pHTInfo->bCurrent_AMSDU_Support = false;
1154  pHTInfo->nCurrent_AMSDU_MaxSize = pHTInfo->nAMSDU_MaxSize;
1155 
1156  // AMPUD related
1157  pHTInfo->CurrentMPDUDensity = pHTInfo->MPDU_Density;
1158  pHTInfo->CurrentAMPDUFactor = pHTInfo->AMPDU_Factor;
1159 
1160 
1161 
1162  // Initialize all of the parameters related to 11n
1163  memset((void*)(&(pHTInfo->SelfHTCap)), 0, sizeof(pHTInfo->SelfHTCap));
1164  memset((void*)(&(pHTInfo->SelfHTInfo)), 0, sizeof(pHTInfo->SelfHTInfo));
1165  memset((void*)(&(pHTInfo->PeerHTCapBuf)), 0, sizeof(pHTInfo->PeerHTCapBuf));
1166  memset((void*)(&(pHTInfo->PeerHTInfoBuf)), 0, sizeof(pHTInfo->PeerHTInfoBuf));
1167 
1168  pHTInfo->bSwBwInProgress = false;
1169  pHTInfo->ChnlOp = CHNLOP_NONE;
1170 
1171  // Set default IEEE spec for Draft N
1172  pHTInfo->ePeerHTSpecVer = HT_SPEC_VER_IEEE;
1173 
1174  // Realtek proprietary aggregation mode
1175  pHTInfo->bCurrentRT2RTAggregation = false;
1176  pHTInfo->bCurrentRT2RTLongSlotTime = false;
1177  pHTInfo->IOTPeer = 0;
1178  pHTInfo->IOTAction = 0;
1179 
1180  //MCS rate initialized here
1181  {
1182  u8* RegHTSuppRateSets = &(ieee->RegHTSuppRateSet[0]);
1183  RegHTSuppRateSets[0] = 0xFF; //support MCS 0~7
1184  RegHTSuppRateSets[1] = 0xFF; //support MCS 8~15
1185  RegHTSuppRateSets[4] = 0x01; //support MCS 32
1186  }
1187 }
1188 /********************************************************************************************************************
1189  *function: initialize Bss HT structure(struct PBSS_HT)
1190  * input: PBSS_HT pBssHT //to be initialized
1191  * output: none
1192  * return: none
1193  * notice: This function is called when initialize network structure
1194 ********************************************************************************************************************/
1196 {
1197 
1198  pBssHT->bdSupportHT = false;
1199  memset(pBssHT->bdHTCapBuf, 0, sizeof(pBssHT->bdHTCapBuf));
1200  pBssHT->bdHTCapLen = 0;
1201  memset(pBssHT->bdHTInfoBuf, 0, sizeof(pBssHT->bdHTInfoBuf));
1202  pBssHT->bdHTInfoLen = 0;
1203 
1204  pBssHT->bdHTSpecVer= HT_SPEC_VER_IEEE;
1205 
1206  pBssHT->bdRT2RTAggregation = false;
1207  pBssHT->bdRT2RTLongSlotTime = false;
1208 }
1209 /********************************************************************************************************************
1210  *function: initialize Bss HT structure(struct PBSS_HT)
1211  * input: struct ieee80211_device *ieee
1212  * struct ieee80211_network *pNetwork //usually current network we are live in
1213  * output: none
1214  * return: none
1215  * notice: This function should ONLY be called before association
1216 ********************************************************************************************************************/
1218 {
1219  PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo;
1220 // u16 nMaxAMSDUSize;
1221 // PHT_CAPABILITY_ELE pPeerHTCap = (PHT_CAPABILITY_ELE)pNetwork->bssht.bdHTCapBuf;
1222 // PHT_INFORMATION_ELE pPeerHTInfo = (PHT_INFORMATION_ELE)pNetwork->bssht.bdHTInfoBuf;
1223 // u8* pMcsFilter;
1224  u8 bIOTAction = 0;
1225 
1226  //
1227  // Save Peer Setting before Association
1228  //
1229  IEEE80211_DEBUG(IEEE80211_DL_HT, "==============>%s()\n", __FUNCTION__);
1230  /*unmark bEnableHT flag here is the same reason why unmarked in function ieee80211_softmac_new_net. WB 2008.09.10*/
1231 // if( pHTInfo->bEnableHT && pNetwork->bssht.bdSupportHT)
1232  if (pNetwork->bssht.bdSupportHT)
1233  {
1234  pHTInfo->bCurrentHTSupport = true;
1235  pHTInfo->ePeerHTSpecVer = pNetwork->bssht.bdHTSpecVer;
1236 
1237  // Save HTCap and HTInfo information Element
1238  if(pNetwork->bssht.bdHTCapLen > 0 && pNetwork->bssht.bdHTCapLen <= sizeof(pHTInfo->PeerHTCapBuf))
1239  memcpy(pHTInfo->PeerHTCapBuf, pNetwork->bssht.bdHTCapBuf, pNetwork->bssht.bdHTCapLen);
1240 
1241  if(pNetwork->bssht.bdHTInfoLen > 0 && pNetwork->bssht.bdHTInfoLen <= sizeof(pHTInfo->PeerHTInfoBuf))
1242  memcpy(pHTInfo->PeerHTInfoBuf, pNetwork->bssht.bdHTInfoBuf, pNetwork->bssht.bdHTInfoLen);
1243 
1244  // Check whether RT to RT aggregation mode is enabled
1245  if(pHTInfo->bRegRT2RTAggregation)
1246  {
1247  pHTInfo->bCurrentRT2RTAggregation = pNetwork->bssht.bdRT2RTAggregation;
1249  }
1250  else
1251  {
1252  pHTInfo->bCurrentRT2RTAggregation = false;
1253  pHTInfo->bCurrentRT2RTLongSlotTime = false;
1254  }
1255 
1256  // Determine the IOT Peer Vendor.
1257  HTIOTPeerDetermine(ieee);
1258 
1259  // Decide IOT Action
1260  // Must be called after the parameter of pHTInfo->bCurrentRT2RTAggregation is decided
1261  pHTInfo->IOTAction = 0;
1262  bIOTAction = HTIOTActIsDisableMCS14(ieee, pNetwork->bssid);
1263  if(bIOTAction)
1264  pHTInfo->IOTAction |= HT_IOT_ACT_DISABLE_MCS14;
1265 
1266  bIOTAction = HTIOTActIsDisableMCS15(ieee);
1267  if(bIOTAction)
1268  pHTInfo->IOTAction |= HT_IOT_ACT_DISABLE_MCS15;
1269 
1270  bIOTAction = HTIOTActIsDisableMCSTwoSpatialStream(ieee, pNetwork->bssid);
1271  if(bIOTAction)
1273 
1274 
1275  bIOTAction = HTIOTActIsDisableEDCATurbo(ieee, pNetwork->bssid);
1276  if(bIOTAction)
1278 
1279  bIOTAction = HTIOTActIsMgntUseCCK6M(pNetwork);
1280  if(bIOTAction)
1282 
1283  bIOTAction = HTIOTActIsCCDFsync(pNetwork->bssid);
1284  if(bIOTAction)
1285  pHTInfo->IOTAction |= HT_IOT_ACT_CDD_FSYNC;
1286 
1287 
1288  }
1289  else
1290  {
1291  pHTInfo->bCurrentHTSupport = false;
1292  pHTInfo->bCurrentRT2RTAggregation = false;
1293  pHTInfo->bCurrentRT2RTLongSlotTime = false;
1294 
1295  pHTInfo->IOTAction = 0;
1296  }
1297 
1298 }
1299 
1301 {
1302  PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo;
1303 // PHT_CAPABILITY_ELE pPeerHTCap = (PHT_CAPABILITY_ELE)pNetwork->bssht.bdHTCapBuf;
1304  PHT_INFORMATION_ELE pPeerHTInfo = (PHT_INFORMATION_ELE)pNetwork->bssht.bdHTInfoBuf;
1305 
1306  if(pHTInfo->bCurrentHTSupport)
1307  {
1308  //
1309  // Config current operation mode.
1310  //
1311  if(pNetwork->bssht.bdHTInfoLen != 0)
1312  pHTInfo->CurrentOpMode = pPeerHTInfo->OptMode;
1313 
1314  //
1315  // <TODO: Config according to OBSS non-HT STA present!!>
1316  //
1317  }
1318 }
1319 
1321 {
1322  PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo;
1323 // u8 regBwOpMode;
1324 
1325  if(pHTInfo->bEnableHT)
1326  {
1327  pHTInfo->bCurrentHTSupport = true;
1328 
1329  pHTInfo->bCurSuppCCK = pHTInfo->bRegSuppCCK;
1330 
1331  pHTInfo->bCurBW40MHz = pHTInfo->bRegBW40MHz;
1332 
1333  pHTInfo->bCurShortGI20MHz= pHTInfo->bRegShortGI20MHz;
1334 
1335  pHTInfo->bCurShortGI40MHz= pHTInfo->bRegShortGI40MHz;
1336 
1337  pHTInfo->bCurrent_AMSDU_Support = pHTInfo->bAMSDU_Support;
1338 
1339  pHTInfo->nCurrent_AMSDU_MaxSize = pHTInfo->nAMSDU_MaxSize;
1340 
1341  pHTInfo->bCurrentAMPDUEnable = pHTInfo->bAMPDUEnable;
1342 
1343  pHTInfo->CurrentAMPDUFactor = pHTInfo->AMPDU_Factor;
1344 
1345  pHTInfo->CurrentMPDUDensity = pHTInfo->MPDU_Density;
1346 
1347  // Set BWOpMode register
1348 
1349  //update RATR index0
1351  //function below is not implemented at all. WB
1352 #ifdef TODO
1353  Adapter->HalFunc.InitHalRATRTableHandler( Adapter, &pMgntInfo->dot11OperationalRateSet, pMgntInfo->dot11HTOperationalRateSet);
1354 #endif
1356  ieee->HTCurrentOperaRate = ieee->HTHighestOperaRate;
1357 
1358  }
1359  else
1360  {
1361  pHTInfo->bCurrentHTSupport = false;
1362  }
1363  return;
1364 }
1365 /********************************************************************************************************************
1366  *function: check whether HT control field exists
1367  * input: struct ieee80211_device *ieee
1368  * u8* pFrame //coming skb->data
1369  * output: none
1370  * return: return true if HT control field exists(false otherwise)
1371  * notice:
1372 ********************************************************************************************************************/
1373 u8 HTCCheck(struct ieee80211_device* ieee, u8* pFrame)
1374 {
1375  if(ieee->pHTInfo->bCurrentHTSupport)
1376  {
1377  if( (IsQoSDataFrame(pFrame) && Frame_Order(pFrame)) == 1)
1378  {
1379  IEEE80211_DEBUG(IEEE80211_DL_HT, "HT CONTROL FILED EXIST!!\n");
1380  return true;
1381  }
1382  }
1383  return false;
1384 }
1385 
1386 //
1387 // This function set bandwidth mode in protocol layer.
1388 //
1390 {
1391  PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo;
1392 // u32 flags = 0;
1393 
1394  if(pHTInfo->bRegBW40MHz == false)
1395  return;
1396 
1397 
1398 
1399  // To reduce dummy operation
1400 // if((pHTInfo->bCurBW40MHz==false && Bandwidth==HT_CHANNEL_WIDTH_20) ||
1401 // (pHTInfo->bCurBW40MHz==true && Bandwidth==HT_CHANNEL_WIDTH_20_40 && Offset==pHTInfo->CurSTAExtChnlOffset))
1402 // return;
1403 
1404 // spin_lock_irqsave(&(ieee->bw_spinlock), flags);
1405  if(pHTInfo->bSwBwInProgress) {
1406 // spin_unlock_irqrestore(&(ieee->bw_spinlock), flags);
1407  return;
1408  }
1409  //if in half N mode, set to 20M bandwidth please 09.08.2008 WB.
1410  if(Bandwidth==HT_CHANNEL_WIDTH_20_40 && (!ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev)))
1411  {
1412  // Handle Illegal extension channel offset!!
1413  if(ieee->current_network.channel<2 && Offset==HT_EXTCHNL_OFFSET_LOWER)
1414  Offset = HT_EXTCHNL_OFFSET_NO_EXT;
1415  if(Offset==HT_EXTCHNL_OFFSET_UPPER || Offset==HT_EXTCHNL_OFFSET_LOWER) {
1416  pHTInfo->bCurBW40MHz = true;
1417  pHTInfo->CurSTAExtChnlOffset = Offset;
1418  } else {
1419  pHTInfo->bCurBW40MHz = false;
1421  }
1422  } else {
1423  pHTInfo->bCurBW40MHz = false;
1425  }
1426 
1427  pHTInfo->bSwBwInProgress = true;
1428 
1429  // TODO: 2007.7.13 by Emily Wait 2000ms in order to guarantee that switching
1430  // bandwidth is executed after scan is finished. It is a temporal solution
1431  // because software should ganrantee the last operation of switching bandwidth
1432  // is executed properlly.
1434 
1435 // spin_unlock_irqrestore(&(ieee->bw_spinlock), flags);
1436 }
1437 
1439 {
1440  PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo;
1441 
1442  IEEE80211_DEBUG(IEEE80211_DL_HT, "======>%s()\n", __FUNCTION__);
1443 
1444  if(pHTInfo->bCurBW40MHz)
1445  {
1447  ieee->set_chan(ieee->dev, ieee->current_network.channel+2);
1448  else if(pHTInfo->CurSTAExtChnlOffset==HT_EXTCHNL_OFFSET_LOWER)
1449  ieee->set_chan(ieee->dev, ieee->current_network.channel-2);
1450  else
1451  ieee->set_chan(ieee->dev, ieee->current_network.channel);
1452 
1454  } else {
1455  ieee->set_chan(ieee->dev, ieee->current_network.channel);
1457  }
1458 
1459  pHTInfo->bSwBwInProgress = false;
1460 }
1461