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
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};
7 u8 MCS_FILTER_1SS[16] = {0xff, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
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
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};
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
52 * notice: These value need be modified if any changes.
53 * *****************************************************************************************************************/
54 void HTUpdateDefaultSetting(struct ieee80211_device *ieee)
56 PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo;
57 //const typeof( ((struct ieee80211_device *)0)->pHTInfo ) *__mptr = &pHTInfo;
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);
62 pHTInfo->bRegShortGI20MHz= 1;
63 pHTInfo->bRegShortGI40MHz= 1;
65 // 40MHz channel support
66 pHTInfo->bRegBW40MHz = 1;
68 // CCK rate support in 40MHz channel
69 if(pHTInfo->bRegBW40MHz)
70 pHTInfo->bRegSuppCCK = 1;
72 pHTInfo->bRegSuppCCK = true;
75 pHTInfo->nAMSDU_MaxSize = 7935UL;
76 pHTInfo->bAMSDU_Support = 0;
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
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;
92 // 8190 only. Assign duration operation mode to firmware
93 pMgntInfo->bTxEnableFwCalcDur = (BOOLEAN)pNdisCommon->bRegTxEnableFwCalcDur;
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
99 // For Rx Reorder Control
100 pHTInfo->bRegRxReorderEnable = 1;
101 pHTInfo->RxReorderWinSize = 64;
102 pHTInfo->RxReorderPendingTime = 30;
104 #ifdef USB_TX_DRIVER_AGGREGATION_ENABLE
105 pHTInfo->UsbTxAggrNum = 4;
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
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
122 * notice: Driver should not print out this message by default.
123 * *****************************************************************************************************************/
124 void HTDebugHTCapability(u8 *CapIE, u8 *TitleString )
127 static u8 EWC11NHTCap[] = {0x00, 0x90, 0x4c, 0x33}; // For 11n EWC definition, 2007.07.17, by Emily
128 PHT_CAPABILITY_ELE pCapELE;
130 if(!memcmp(CapIE, EWC11NHTCap, sizeof(EWC11NHTCap)))
133 IEEE80211_DEBUG(IEEE80211_DL_HT, "EWC IE in %s()\n", __func__);
134 pCapELE = (PHT_CAPABILITY_ELE)(&CapIE[4]);
136 pCapELE = (PHT_CAPABILITY_ELE)(&CapIE[0]);
138 IEEE80211_DEBUG(IEEE80211_DL_HT, "<Log HT Capability>. Called by %s\n", TitleString );
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]);
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
159 * notice: Driver should not print out this message by default.
160 * *****************************************************************************************************************/
161 void HTDebugHTInfo(u8 *InfoIE, u8 *TitleString)
164 static u8 EWC11NHTInfo[] = {0x00, 0x90, 0x4c, 0x34}; // For 11n EWC definition, 2007.07.17, by Emily
165 PHT_INFORMATION_ELE pHTInfoEle;
167 if(!memcmp(InfoIE, EWC11NHTInfo, sizeof(EWC11NHTInfo)))
170 IEEE80211_DEBUG(IEEE80211_DL_HT, "EWC IE in %s()\n", __func__);
171 pHTInfoEle = (PHT_INFORMATION_ELE)(&InfoIE[4]);
173 pHTInfoEle = (PHT_INFORMATION_ELE)(&InfoIE[0]);
176 IEEE80211_DEBUG(IEEE80211_DL_HT, "<Log HT Information Element>. Called by %s\n", TitleString);
178 IEEE80211_DEBUG(IEEE80211_DL_HT, "\tPrimary channel = %d\n", pHTInfoEle->ControlChl);
179 IEEE80211_DEBUG(IEEE80211_DL_HT, "\tSenondary channel =");
180 switch (pHTInfoEle->ExtChlOffset)
183 IEEE80211_DEBUG(IEEE80211_DL_HT, "Not Present\n");
186 IEEE80211_DEBUG(IEEE80211_DL_HT, "Upper channel\n");
189 IEEE80211_DEBUG(IEEE80211_DL_HT, "Reserved. Eooro!!!\n");
192 IEEE80211_DEBUG(IEEE80211_DL_HT, "Lower Channel\n");
195 IEEE80211_DEBUG(IEEE80211_DL_HT, "\tRecommended channel width = %s\n", (pHTInfoEle->RecommemdedTxWidth)?"20Mhz": "40Mhz");
197 IEEE80211_DEBUG(IEEE80211_DL_HT, "\tOperation mode for protection = ");
198 switch (pHTInfoEle->OptMode)
201 IEEE80211_DEBUG(IEEE80211_DL_HT, "No Protection\n");
204 IEEE80211_DEBUG(IEEE80211_DL_HT, "HT non-member protection mode\n");
207 IEEE80211_DEBUG(IEEE80211_DL_HT, "Suggest to open protection\n");
210 IEEE80211_DEBUG(IEEE80211_DL_HT, "HT mixed mode\n");
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]);
220 * Return: true if station in half n mode and AP supports 40 bw
222 static bool IsHTHalfNmode40Bandwidth(struct ieee80211_device *ieee)
224 bool retValue = false;
225 PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo;
227 if(pHTInfo->bCurrentHTSupport == false ) // wireless is n mode
229 else if(pHTInfo->bRegBW40MHz == false) // station supports 40 bw
231 else if(!ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev)) // station in half n mode
233 else if(((PHT_CAPABILITY_ELE)(pHTInfo->PeerHTCapBuf))->ChlWidth) // ap support 40 bw
241 static bool IsHTHalfNmodeSGI(struct ieee80211_device *ieee, bool is40MHz)
243 bool retValue = false;
244 PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo;
246 if(pHTInfo->bCurrentHTSupport == false ) // wireless is n mode
248 else if(!ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev)) // station in half n mode
250 else if(is40MHz) // ap support 40 bw
252 if(((PHT_CAPABILITY_ELE)(pHTInfo->PeerHTCapBuf))->ShortGI40Mhz) // ap support 40 bw short GI
259 if(((PHT_CAPABILITY_ELE)(pHTInfo->PeerHTCapBuf))->ShortGI20Mhz) // ap support 40 bw short GI
268 u16 HTHalfMcsToDataRate(struct ieee80211_device *ieee, u8 nMcsRate)
274 is40MHz = (IsHTHalfNmode40Bandwidth(ieee))?1:0;
275 isShortGI = (IsHTHalfNmodeSGI(ieee, is40MHz))? 1:0;
277 return MCS_DATA_RATE[is40MHz][isShortGI][(nMcsRate&0x7f)];
281 u16 HTMcsToDataRate( struct ieee80211_device *ieee, u8 nMcsRate)
283 PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo;
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)];
292 /********************************************************************************************************************
293 *function: This function returns current datarate.
294 * input: struct ieee80211_device* ieee
298 * notice: quite unsure about how to use this function //wb
299 * *****************************************************************************************************************/
300 u16 TxCountToDataRate( struct ieee80211_device *ieee, u8 nDataRate)
302 //PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo;
303 u16 CCKOFDMRate[12] = {0x02 , 0x04 , 0x0b , 0x16 , 0x0c , 0x12 , 0x18 , 0x24 , 0x30 , 0x48 , 0x60 , 0x6c};
309 return CCKOFDMRate[nDataRate];
313 if (nDataRate >= 0x10 && nDataRate <= 0x1f)//if(nDataRate > 11 && nDataRate < 28 )
318 // nDataRate = nDataRate - 12;
320 else if(nDataRate >=0x20 && nDataRate <= 0x2f ) //(27, 44)
325 //nDataRate = nDataRate - 28;
327 else if(nDataRate >= 0x30 && nDataRate <= 0x3f ) //(43, 60)
332 //nDataRate = nDataRate - 44;
334 else if(nDataRate >= 0x40 && nDataRate <= 0x4f ) //(59, 76)
339 //nDataRate = nDataRate - 60;
341 return MCS_DATA_RATE[is40MHz][isShortGI][nDataRate&0xf];
347 bool IsHTHalfNmodeAPs(struct ieee80211_device *ieee)
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))
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))
364 else if(net->bssht.bdRT2RTAggregation)
372 /********************************************************************************************************************
373 *function: This function returns peer IOT.
374 * input: struct ieee80211_device* ieee
378 * *****************************************************************************************************************/
379 static void HTIOTPeerDetermine(struct ieee80211_device *ieee)
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;
404 pHTInfo->IOTPeer = HT_IOT_PEER_UNKNOWN;
406 IEEE80211_DEBUG(IEEE80211_DL_IOT, "Joseph debug!! IOTPEER: %x\n", pHTInfo->IOTPeer);
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
414 * return: return 1 if driver should declare MCS13 only(otherwise return 0)
415 * *****************************************************************************************************************/
416 static u8 HTIOTActIsDisableMCS14(struct ieee80211_device *ieee, u8 *PeerMacAddr)
423 * Function: HTIOTActIsDisableMCS15
425 * Overview: Check whether driver should declare capability of receiving MCS15
431 * Return: true if driver should disable MCS15
434 static bool HTIOTActIsDisableMCS15(struct ieee80211_device *ieee)
436 bool retValue = false;
439 // Apply for 819u only
440 #if (HAL_CODE_BASE==RTL8192)
442 #if (DEV_BUS_TYPE == USB_INTERFACE)
443 // Alway disable MCS15 by Jerry Chang's request.by Emily, 2008.04.15
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)
454 // Jerry Chang suggest that 8190 1x2 does not need to disable MCS15
460 * Function: HTIOTActIsDisableMCSTwoSpatialStream
462 * Overview: Check whether driver should declare capability of receiving All 2 ss packets
468 * Return: true if driver should disable all two spatial stream packet
471 static bool HTIOTActIsDisableMCSTwoSpatialStream(struct ieee80211_device *ieee,
474 bool retValue = false;
477 // Apply for 819u only
482 /********************************************************************************************************************
483 *function: Check whether driver should disable EDCA turbo mode
484 * input: struct ieee80211_device* ieee
487 * return: return 1 if driver should disable EDCA turbo mode(otherwise return 0)
488 * *****************************************************************************************************************/
489 static u8 HTIOTActIsDisableEDCATurbo(struct ieee80211_device *ieee,
492 u8 retValue = false; // default enable EDCA Turbo mode.
493 // Set specific EDCA parameter for different AP in DM handler.
498 /********************************************************************************************************************
499 *function: Check whether we need to use OFDM to sned MGNT frame for broadcom AP
500 * input: struct ieee80211_network *network //current network we live
502 * return: return 1 if true
503 * *****************************************************************************************************************/
504 static u8 HTIOTActIsMgntUseCCK6M(struct ieee80211_network *network)
508 // 2008/01/25 MH Judeg if we need to use OFDM to sned MGNT frame for broadcom AP.
509 // 2008/01/28 MH We must prevent that we select null bssid to link.
511 if(network->broadcom_cap_exist)
519 static u8 HTIOTActIsCCDFsync(u8 *PeerMacAddr)
522 if( (memcmp(PeerMacAddr, UNKNOWN_BORADCOM, 3)==0) ||
523 (memcmp(PeerMacAddr, LINKSYSWRT330_LINKSYSWRT300_BROADCOM, 3)==0) ||
524 (memcmp(PeerMacAddr, LINKSYSWRT350_LINKSYSWRT150_BROADCOM, 3) ==0))
532 void HTResetIOTSetting(
533 PRT_HIGH_THROUGHPUT pHTInfo
536 pHTInfo->IOTAction = 0;
537 pHTInfo->IOTPeer = HT_IOT_PEER_UNKNOWN;
541 /********************************************************************************************************************
542 *function: Construct Capablility Element in Beacon... if HTEnable is turned on
543 * input: struct ieee80211_device* ieee
544 * u8* posHTCap //pointer to store Capability Ele
545 * u8* len //store length of CE
546 * u8 IsEncrypt //whether encrypt, needed further
549 * notice: posHTCap can't be null and should be initialized before.
550 * *****************************************************************************************************************/
551 void HTConstructCapabilityElement(struct ieee80211_device *ieee, u8 *posHTCap, u8 *len, u8 IsEncrypt)
553 PRT_HIGH_THROUGHPUT pHT = ieee->pHTInfo;
554 PHT_CAPABILITY_ELE pCapELE = NULL;
555 //u8 bIsDeclareMCS13;
557 if ((posHTCap == NULL) || (pHT == NULL))
559 IEEE80211_DEBUG(IEEE80211_DL_ERR, "posHTCap or pHTInfo can't be null in HTConstructCapabilityElement()\n");
562 memset(posHTCap, 0, *len);
563 if(pHT->ePeerHTSpecVer == HT_SPEC_VER_EWC)
565 u8 EWC11NHTCap[] = {0x00, 0x90, 0x4c, 0x33}; // For 11n EWC definition, 2007.07.17, by Emily
566 memcpy(posHTCap, EWC11NHTCap, sizeof(EWC11NHTCap));
567 pCapELE = (PHT_CAPABILITY_ELE)&(posHTCap[4]);
570 pCapELE = (PHT_CAPABILITY_ELE)posHTCap;
575 pCapELE->AdvCoding = 0; // This feature is not supported now!!
576 if(ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev))
578 pCapELE->ChlWidth = 0;
582 pCapELE->ChlWidth = (pHT->bRegBW40MHz?1:0);
585 // pCapELE->ChlWidth = (pHT->bRegBW40MHz?1:0);
586 pCapELE->MimoPwrSave = pHT->SelfMimoPs;
587 pCapELE->GreenField = 0; // This feature is not supported now!!
588 pCapELE->ShortGI20Mhz = 1; // We can receive Short GI!!
589 pCapELE->ShortGI40Mhz = 1; // We can receive Short GI!!
590 //DbgPrint("TX HT cap/info ele BW=%d SG20=%d SG40=%d\n\r",
591 //pCapELE->ChlWidth, pCapELE->ShortGI20Mhz, pCapELE->ShortGI40Mhz);
594 pCapELE->DelayBA = 0; // Do not support now!!
595 pCapELE->MaxAMSDUSize = (MAX_RECEIVE_BUFFER_SIZE>=7935)?1:0;
596 pCapELE->DssCCk = ((pHT->bRegBW40MHz)?(pHT->bRegSuppCCK?1:0):0);
597 pCapELE->PSMP = 0; // Do not support now!!
598 pCapELE->LSigTxopProtect = 0; // Do not support now!!
601 //MAC HT parameters info
602 // TODO: Nedd to take care of this part
603 IEEE80211_DEBUG(IEEE80211_DL_HT, "TX HT cap/info ele BW=%d MaxAMSDUSize:%d DssCCk:%d\n", pCapELE->ChlWidth, pCapELE->MaxAMSDUSize, pCapELE->DssCCk);
607 pCapELE->MPDUDensity = 7; // 8us
608 pCapELE->MaxRxAMPDUFactor = 2; // 2 is for 32 K and 3 is 64K
612 pCapELE->MaxRxAMPDUFactor = 3; // 2 is for 32 K and 3 is 64K
613 pCapELE->MPDUDensity = 0; // no density
617 memcpy(pCapELE->MCS, ieee->Regdot11HTOperationalRateSet, 16);
618 if(pHT->IOTAction & HT_IOT_ACT_DISABLE_MCS15)
619 pCapELE->MCS[1] &= 0x7f;
621 if(pHT->IOTAction & HT_IOT_ACT_DISABLE_MCS14)
622 pCapELE->MCS[1] &= 0xbf;
624 if(pHT->IOTAction & HT_IOT_ACT_DISABLE_ALL_2SS)
625 pCapELE->MCS[1] &= 0x00;
628 // For RTL819X, if pairwisekey = wep/tkip, ap is ralink, we support only MCS0~7.
629 if(ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev))
632 for(i = 1; i< 16; i++)
636 //Extended HT Capability Info
637 memset(&pCapELE->ExtHTCapInfo, 0, 2);
641 memset(pCapELE->TxBFCap, 0, 4);
643 //Antenna Selection Capabilities
645 //add 2 to give space for element ID and len when construct frames
646 if(pHT->ePeerHTSpecVer == HT_SPEC_VER_EWC)
653 // IEEE80211_DEBUG_DATA(IEEE80211_DL_DATA | IEEE80211_DL_HT, posHTCap, *len -2);
655 //Print each field in detail. Driver should not print out this message by default
656 // HTDebugHTCapability(posHTCap, (u8*)"HTConstructCapability()");
660 /********************************************************************************************************************
661 *function: Construct Information Element in Beacon... if HTEnable is turned on
662 * input: struct ieee80211_device* ieee
663 * u8* posHTCap //pointer to store Information Ele
664 * u8* len //store len of
665 * u8 IsEncrypt //whether encrypt, needed further
668 * notice: posHTCap can't be null and be initialized before. only AP and IBSS sta should do this
669 * *****************************************************************************************************************/
670 void HTConstructInfoElement(struct ieee80211_device *ieee, u8 *posHTInfo, u8 *len, u8 IsEncrypt)
672 PRT_HIGH_THROUGHPUT pHT = ieee->pHTInfo;
673 PHT_INFORMATION_ELE pHTInfoEle = (PHT_INFORMATION_ELE)posHTInfo;
674 if ((posHTInfo == NULL) || (pHTInfoEle == NULL))
676 IEEE80211_DEBUG(IEEE80211_DL_ERR, "posHTInfo or pHTInfoEle can't be null in HTConstructInfoElement()\n");
680 memset(posHTInfo, 0, *len);
681 if ( (ieee->iw_mode == IW_MODE_ADHOC) || (ieee->iw_mode == IW_MODE_MASTER)) //ap mode is not currently supported
683 pHTInfoEle->ControlChl = ieee->current_network.channel;
684 pHTInfoEle->ExtChlOffset = ((pHT->bRegBW40MHz == false)?HT_EXTCHNL_OFFSET_NO_EXT:
685 (ieee->current_network.channel<=6)?
686 HT_EXTCHNL_OFFSET_UPPER:HT_EXTCHNL_OFFSET_LOWER);
687 pHTInfoEle->RecommemdedTxWidth = pHT->bRegBW40MHz;
688 pHTInfoEle->RIFS = 0;
689 pHTInfoEle->PSMPAccessOnly = 0;
690 pHTInfoEle->SrvIntGranularity = 0;
691 pHTInfoEle->OptMode = pHT->CurrentOpMode;
692 pHTInfoEle->NonGFDevPresent = 0;
693 pHTInfoEle->DualBeacon = 0;
694 pHTInfoEle->SecondaryBeacon = 0;
695 pHTInfoEle->LSigTxopProtectFull = 0;
696 pHTInfoEle->PcoActive = 0;
697 pHTInfoEle->PcoPhase = 0;
699 memset(pHTInfoEle->BasicMSC, 0, 16);
702 *len = 22 + 2; //same above
707 //STA should not generate High Throughput Information Element
710 //IEEE80211_DEBUG_DATA(IEEE80211_DL_DATA | IEEE80211_DL_HT, posHTInfo, *len - 2);
711 //HTDebugHTInfo(posHTInfo, "HTConstructInforElement");
716 * According to experiment, Realtek AP to STA (based on rtl8190) may achieve best performance
717 * if both STA and AP set limitation of aggregation size to 32K, that is, set AMPDU density to 2
718 * (Ref: IEEE 11n specification). However, if Realtek STA associates to other AP, STA should set
719 * limitation of aggregation size to 8K, otherwise, performance of traffic stream from STA to AP
720 * will be much less than the traffic stream from AP to STA if both of the stream runs concurrently
724 * Element ID Length OUI Type1 Reserved
725 * 1 byte 1 byte 3 bytes 1 byte 1 byte
727 * OUI = 0x00, 0xe0, 0x4c,
733 /********************************************************************************************************************
734 *function: Construct Information Element in Beacon... in RT2RT condition
735 * input: struct ieee80211_device* ieee
736 * u8* posRT2RTAgg //pointer to store Information Ele
737 * u8* len //store len
741 * *****************************************************************************************************************/
742 void HTConstructRT2RTAggElement(struct ieee80211_device *ieee, u8 *posRT2RTAgg, u8 *len)
744 if (posRT2RTAgg == NULL) {
745 IEEE80211_DEBUG(IEEE80211_DL_ERR, "posRT2RTAgg can't be null in HTConstructRT2RTAggElement()\n");
748 memset(posRT2RTAgg, 0, *len);
749 *posRT2RTAgg++ = 0x00;
750 *posRT2RTAgg++ = 0xe0;
751 *posRT2RTAgg++ = 0x4c;
752 *posRT2RTAgg++ = 0x02;
753 *posRT2RTAgg++ = 0x01;
754 *posRT2RTAgg = 0x10;//*posRT2RTAgg = 0x02;
756 if(ieee->bSupportRemoteWakeUp) {
757 *posRT2RTAgg |= 0x08;//RT_HT_CAP_USE_WOW;
763 #if (HAL_CODE_BASE == RTL8192 && DEV_BUS_TYPE == USB_INTERFACE)
765 //Emily. If it is required to Ask Realtek AP to send AMPDU during AES mode, enable this
767 if(IS_UNDER_11N_AES_MODE(Adapter))
769 posRT2RTAgg->Octet[5] |=RT_HT_CAP_USE_AMPDU;
772 posRT2RTAgg->Octet[5] &= 0xfb;
780 posRT2RTAgg->Length = 6;
789 /********************************************************************************************************************
790 *function: Pick the right Rate Adaptive table to use
791 * input: struct ieee80211_device* ieee
792 * u8* pOperateMCS //A pointer to MCS rate bitmap
793 * return: always we return true
795 * *****************************************************************************************************************/
796 static u8 HT_PickMCSRate(struct ieee80211_device *ieee, u8 *pOperateMCS)
799 if (pOperateMCS == NULL)
801 IEEE80211_DEBUG(IEEE80211_DL_ERR, "pOperateMCS can't be null in HT_PickMCSRate()\n");
810 //legacy rate routine handled at selectedrate
818 case IEEE_N_24G: //assume CCK rate ok
820 // Legacy part we only use 6, 5.5,2,1 for N_24G and 6 for N_5G.
821 // Legacy part shall be handled at SelectRateSet().
824 // TODO: may be different if we have different number of antenna
825 pOperateMCS[0] &=RATE_ADPT_1SS_MASK; //support MCS 0~7
826 pOperateMCS[1] &=RATE_ADPT_2SS_MASK;
827 pOperateMCS[3] &=RATE_ADPT_MCS32_MASK;
830 //should never reach here
842 * This function will get the highest speed rate in input MCS set.
844 * /param Adapter Pionter to Adapter entity
845 * pMCSRateSet Pointer to MCS rate bitmap
846 * pMCSFilter Pointer to MCS rate filter
848 * /return Highest MCS rate included in pMCSRateSet and filtered by pMCSFilter.
851 /********************************************************************************************************************
852 *function: This function will get the highest speed rate in input MCS set.
853 * input: struct ieee80211_device* ieee
854 * u8* pMCSRateSet //Pointer to MCS rate bitmap
855 * u8* pMCSFilter //Pointer to MCS rate filter
856 * return: Highest MCS rate included in pMCSRateSet and filtered by pMCSFilter
858 * *****************************************************************************************************************/
859 u8 HTGetHighestMCSRate(struct ieee80211_device *ieee, u8 *pMCSRateSet, u8 *pMCSFilter)
864 u8 availableMcsRate[16];
865 if (pMCSRateSet == NULL || pMCSFilter == NULL)
867 IEEE80211_DEBUG(IEEE80211_DL_ERR, "pMCSRateSet or pMCSFilter can't be null in HTGetHighestMCSRate()\n");
871 availableMcsRate[i] = pMCSRateSet[i] & pMCSFilter[i];
873 for(i = 0; i < 16; i++)
875 if(availableMcsRate[i] != 0)
881 for(i = 0; i < 16; i++)
883 if(availableMcsRate[i] != 0)
885 bitMap = availableMcsRate[i];
886 for(j = 0; j < 8; j++)
890 if(HTMcsToDataRate(ieee, (8*i+j)) > HTMcsToDataRate(ieee, mcsRate))
897 return (mcsRate|0x80);
904 **1.Filter our operation rate set with AP's rate set
905 **2.shall reference channel bandwidth, STBC, Antenna number
906 **3.generate rate adative table for firmware
909 ** \pHTSupportedCap: the connected STA's supported rate Capability element
911 static u8 HTFilterMCSRate(struct ieee80211_device *ieee, u8 *pSupportMCS,
917 // filter out operational rate set not supported by AP, the length of it is 16
919 pOperateMCS[i] = ieee->Regdot11HTOperationalRateSet[i]&pSupportMCS[i];
923 // TODO: adjust our operational rate set according to our channel bandwidth, STBC and Antenna number
925 // TODO: fill suggested rate adaptive rate index and give firmware info using Tx command packet
926 // we also shall suggested the first start rate set according to our singal strength
927 HT_PickMCSRate(ieee, pOperateMCS);
929 // For RTL819X, if pairwisekey = wep/tkip, we support only MCS0~7.
930 if(ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev))
934 // For RTL819X, we support only MCS0~15.
935 // And also, we do not know how to use MCS32 now.
942 void HTSetConnectBwMode(struct ieee80211_device *ieee, HT_CHANNEL_WIDTH Bandwidth, HT_EXTCHNL_OFFSET Offset);
943 void HTOnAssocRsp(struct ieee80211_device *ieee)
945 PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo;
946 PHT_CAPABILITY_ELE pPeerHTCap = NULL;
947 PHT_INFORMATION_ELE pPeerHTInfo = NULL;
948 u16 nMaxAMSDUSize = 0;
949 u8 *pMcsFilter = NULL;
951 static u8 EWC11NHTCap[] = {0x00, 0x90, 0x4c, 0x33}; // For 11n EWC definition, 2007.07.17, by Emily
952 static u8 EWC11NHTInfo[] = {0x00, 0x90, 0x4c, 0x34}; // For 11n EWC definition, 2007.07.17, by Emily
954 if( pHTInfo->bCurrentHTSupport == false )
956 IEEE80211_DEBUG(IEEE80211_DL_ERR, "<=== HTOnAssocRsp(): HT_DISABLE\n");
959 IEEE80211_DEBUG(IEEE80211_DL_HT, "===> HTOnAssocRsp_wq(): HT_ENABLE\n");
960 // IEEE80211_DEBUG_DATA(IEEE80211_DL_DATA, pHTInfo->PeerHTCapBuf, sizeof(HT_CAPABILITY_ELE));
961 // IEEE80211_DEBUG_DATA(IEEE80211_DL_DATA, pHTInfo->PeerHTInfoBuf, sizeof(HT_INFORMATION_ELE));
963 // HTDebugHTCapability(pHTInfo->PeerHTCapBuf,"HTOnAssocRsp_wq");
964 // HTDebugHTInfo(pHTInfo->PeerHTInfoBuf,"HTOnAssocRsp_wq");
966 if(!memcmp(pHTInfo->PeerHTCapBuf,EWC11NHTCap, sizeof(EWC11NHTCap)))
967 pPeerHTCap = (PHT_CAPABILITY_ELE)(&pHTInfo->PeerHTCapBuf[4]);
969 pPeerHTCap = (PHT_CAPABILITY_ELE)(pHTInfo->PeerHTCapBuf);
971 if(!memcmp(pHTInfo->PeerHTInfoBuf, EWC11NHTInfo, sizeof(EWC11NHTInfo)))
972 pPeerHTInfo = (PHT_INFORMATION_ELE)(&pHTInfo->PeerHTInfoBuf[4]);
974 pPeerHTInfo = (PHT_INFORMATION_ELE)(pHTInfo->PeerHTInfoBuf);
977 ////////////////////////////////////////////////////////
979 ////////////////////////////////////////////////////////
980 IEEE80211_DEBUG_DATA(IEEE80211_DL_DATA|IEEE80211_DL_HT, pPeerHTCap, sizeof(HT_CAPABILITY_ELE));
981 // IEEE80211_DEBUG_DATA(IEEE80211_DL_DATA|IEEE80211_DL_HT, pPeerHTInfo, sizeof(HT_INFORMATION_ELE));
982 // Config Supported Channel Width setting
984 HTSetConnectBwMode(ieee, (HT_CHANNEL_WIDTH)(pPeerHTCap->ChlWidth), (HT_EXTCHNL_OFFSET)(pPeerHTInfo->ExtChlOffset));
986 // if(pHTInfo->bCurBW40MHz == true)
987 pHTInfo->bCurTxBW40MHz = ((pPeerHTInfo->RecommemdedTxWidth == 1)?true:false);
990 // Update short GI/ long GI setting
993 pHTInfo->bCurShortGI20MHz=
994 ((pHTInfo->bRegShortGI20MHz)?((pPeerHTCap->ShortGI20Mhz==1)?true:false):false);
995 pHTInfo->bCurShortGI40MHz=
996 ((pHTInfo->bRegShortGI40MHz)?((pPeerHTCap->ShortGI40Mhz==1)?true:false):false);
999 // Config TX STBC setting
1004 // Config DSSS/CCK mode in 40MHz mode
1007 pHTInfo->bCurSuppCCK =
1008 ((pHTInfo->bRegSuppCCK)?((pPeerHTCap->DssCCk==1)?true:false):false);
1012 // Config and configure A-MSDU setting
1014 pHTInfo->bCurrent_AMSDU_Support = pHTInfo->bAMSDU_Support;
1016 nMaxAMSDUSize = (pPeerHTCap->MaxAMSDUSize==0)?3839:7935;
1018 if(pHTInfo->nAMSDU_MaxSize > nMaxAMSDUSize )
1019 pHTInfo->nCurrent_AMSDU_MaxSize = nMaxAMSDUSize;
1021 pHTInfo->nCurrent_AMSDU_MaxSize = pHTInfo->nAMSDU_MaxSize;
1025 // Config A-MPDU setting
1027 pHTInfo->bCurrentAMPDUEnable = pHTInfo->bAMPDUEnable;
1029 // <1> Decide AMPDU Factor
1032 if(!pHTInfo->bRegRT2RTAggregation)
1034 // Decide AMPDU Factor according to protocol handshake
1035 if(pHTInfo->AMPDU_Factor > pPeerHTCap->MaxRxAMPDUFactor)
1036 pHTInfo->CurrentAMPDUFactor = pPeerHTCap->MaxRxAMPDUFactor;
1038 pHTInfo->CurrentAMPDUFactor = pHTInfo->AMPDU_Factor;
1042 // Set MPDU density to 2 to Realtek AP, and set it to 0 for others
1043 // Replace MPDU factor declared in original association response frame format. 2007.08.20 by Emily
1044 if (ieee->current_network.bssht.bdRT2RTAggregation)
1046 if( ieee->pairwise_key_type != KEY_TYPE_NA)
1047 // Realtek may set 32k in security mode and 64k for others
1048 pHTInfo->CurrentAMPDUFactor = pPeerHTCap->MaxRxAMPDUFactor;
1050 pHTInfo->CurrentAMPDUFactor = HT_AGG_SIZE_64K;
1053 if(pPeerHTCap->MaxRxAMPDUFactor < HT_AGG_SIZE_32K)
1054 pHTInfo->CurrentAMPDUFactor = pPeerHTCap->MaxRxAMPDUFactor;
1056 pHTInfo->CurrentAMPDUFactor = HT_AGG_SIZE_32K;
1060 // <2> Set AMPDU Minimum MPDU Start Spacing
1061 // 802.11n 3.0 section 9.7d.3
1062 if(pHTInfo->MPDU_Density > pPeerHTCap->MPDUDensity)
1063 pHTInfo->CurrentMPDUDensity = pHTInfo->MPDU_Density;
1065 pHTInfo->CurrentMPDUDensity = pPeerHTCap->MPDUDensity;
1066 if(ieee->pairwise_key_type != KEY_TYPE_NA )
1067 pHTInfo->CurrentMPDUDensity = 7; // 8us
1070 // Lanhsin: mark for tmp to avoid deauth by ap from s3
1071 //if(memcmp(pMgntInfo->Bssid, NETGEAR834Bv2_BROADCOM, 3)==0)
1075 pHTInfo->bCurrentAMPDUEnable = false;
1076 pHTInfo->ForcedAMSDUMode = HT_AGG_FORCE_ENABLE;
1077 pHTInfo->ForcedAMSDUMaxSize = 7935;
1079 pHTInfo->IOTAction |= HT_IOT_ACT_TX_USE_AMSDU_8K;
1082 // Rx Reorder Setting
1083 pHTInfo->bCurRxReorderEnable = pHTInfo->bRegRxReorderEnable;
1086 // Filter out unsupported HT rate for this AP
1087 // Update RATR table
1088 // This is only for 8190 ,8192 or later product which using firmware to handle rate adaptive mechanism.
1091 // Handle Ralink AP bad MCS rate set condition. Joseph.
1092 // This fix the bug of Ralink AP. This may be removed in the future.
1093 if(pPeerHTCap->MCS[0] == 0)
1094 pPeerHTCap->MCS[0] = 0xff;
1096 HTFilterMCSRate(ieee, pPeerHTCap->MCS, ieee->dot11HTOperationalRateSet);
1099 // Config MIMO Power Save setting
1101 pHTInfo->PeerMimoPs = pPeerHTCap->MimoPwrSave;
1102 if(pHTInfo->PeerMimoPs == MIMO_PS_STATIC)
1103 pMcsFilter = MCS_FILTER_1SS;
1105 pMcsFilter = MCS_FILTER_ALL;
1106 //WB add for MCS8 bug
1107 // pMcsFilter = MCS_FILTER_1SS;
1108 ieee->HTHighestOperaRate = HTGetHighestMCSRate(ieee, ieee->dot11HTOperationalRateSet, pMcsFilter);
1109 ieee->HTCurrentOperaRate = ieee->HTHighestOperaRate;
1112 // Config current operation mode.
1114 pHTInfo->CurrentOpMode = pPeerHTInfo->OptMode;
1120 void HTSetConnectBwModeCallback(struct ieee80211_device *ieee);
1121 /********************************************************************************************************************
1122 *function: initialize HT info(struct PRT_HIGH_THROUGHPUT)
1123 * input: struct ieee80211_device* ieee
1126 * notice: This function is called when * (1) MPInitialization Phase * (2) Receiving of Deauthentication from AP
1127 ********************************************************************************************************************/
1128 // TODO: Should this funciton be called when receiving of Disassociation?
1129 void HTInitializeHTInfo(struct ieee80211_device *ieee)
1131 PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo;
1134 // These parameters will be reset when receiving deauthentication packet
1136 IEEE80211_DEBUG(IEEE80211_DL_HT, "===========>%s()\n", __func__);
1137 pHTInfo->bCurrentHTSupport = false;
1139 // 40MHz channel support
1140 pHTInfo->bCurBW40MHz = false;
1141 pHTInfo->bCurTxBW40MHz = false;
1144 pHTInfo->bCurShortGI20MHz = false;
1145 pHTInfo->bCurShortGI40MHz = false;
1146 pHTInfo->bForcedShortGI = false;
1149 // This flag is set to true to support CCK rate by default.
1150 // It will be affected by "pHTInfo->bRegSuppCCK" and AP capabilities only when associate to
1152 pHTInfo->bCurSuppCCK = true;
1155 pHTInfo->bCurrent_AMSDU_Support = false;
1156 pHTInfo->nCurrent_AMSDU_MaxSize = pHTInfo->nAMSDU_MaxSize;
1159 pHTInfo->CurrentMPDUDensity = pHTInfo->MPDU_Density;
1160 pHTInfo->CurrentAMPDUFactor = pHTInfo->AMPDU_Factor;
1164 // Initialize all of the parameters related to 11n
1165 memset((void *)(&(pHTInfo->SelfHTCap)), 0, sizeof(pHTInfo->SelfHTCap));
1166 memset((void *)(&(pHTInfo->SelfHTInfo)), 0, sizeof(pHTInfo->SelfHTInfo));
1167 memset((void *)(&(pHTInfo->PeerHTCapBuf)), 0, sizeof(pHTInfo->PeerHTCapBuf));
1168 memset((void *)(&(pHTInfo->PeerHTInfoBuf)), 0, sizeof(pHTInfo->PeerHTInfoBuf));
1170 pHTInfo->bSwBwInProgress = false;
1171 pHTInfo->ChnlOp = CHNLOP_NONE;
1173 // Set default IEEE spec for Draft N
1174 pHTInfo->ePeerHTSpecVer = HT_SPEC_VER_IEEE;
1176 // Realtek proprietary aggregation mode
1177 pHTInfo->bCurrentRT2RTAggregation = false;
1178 pHTInfo->bCurrentRT2RTLongSlotTime = false;
1179 pHTInfo->IOTPeer = 0;
1180 pHTInfo->IOTAction = 0;
1182 //MCS rate initialized here
1184 u8 *RegHTSuppRateSets = &(ieee->RegHTSuppRateSet[0]);
1185 RegHTSuppRateSets[0] = 0xFF; //support MCS 0~7
1186 RegHTSuppRateSets[1] = 0xFF; //support MCS 8~15
1187 RegHTSuppRateSets[4] = 0x01; //support MCS 32
1190 /********************************************************************************************************************
1191 *function: initialize Bss HT structure(struct PBSS_HT)
1192 * input: PBSS_HT pBssHT //to be initialized
1195 * notice: This function is called when initialize network structure
1196 ********************************************************************************************************************/
1197 void HTInitializeBssDesc(PBSS_HT pBssHT)
1200 pBssHT->bdSupportHT = false;
1201 memset(pBssHT->bdHTCapBuf, 0, sizeof(pBssHT->bdHTCapBuf));
1202 pBssHT->bdHTCapLen = 0;
1203 memset(pBssHT->bdHTInfoBuf, 0, sizeof(pBssHT->bdHTInfoBuf));
1204 pBssHT->bdHTInfoLen = 0;
1206 pBssHT->bdHTSpecVer= HT_SPEC_VER_IEEE;
1208 pBssHT->bdRT2RTAggregation = false;
1209 pBssHT->bdRT2RTLongSlotTime = false;
1211 /********************************************************************************************************************
1212 *function: initialize Bss HT structure(struct PBSS_HT)
1213 * input: struct ieee80211_device *ieee
1214 * struct ieee80211_network *pNetwork //usually current network we are live in
1217 * notice: This function should ONLY be called before association
1218 ********************************************************************************************************************/
1219 void HTResetSelfAndSavePeerSetting(struct ieee80211_device *ieee, struct ieee80211_network *pNetwork)
1221 PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo;
1222 // u16 nMaxAMSDUSize;
1223 // PHT_CAPABILITY_ELE pPeerHTCap = (PHT_CAPABILITY_ELE)pNetwork->bssht.bdHTCapBuf;
1224 // PHT_INFORMATION_ELE pPeerHTInfo = (PHT_INFORMATION_ELE)pNetwork->bssht.bdHTInfoBuf;
1229 // Save Peer Setting before Association
1231 IEEE80211_DEBUG(IEEE80211_DL_HT, "==============>%s()\n", __func__);
1232 /*unmark bEnableHT flag here is the same reason why unmarked in function ieee80211_softmac_new_net. WB 2008.09.10*/
1233 // if( pHTInfo->bEnableHT && pNetwork->bssht.bdSupportHT)
1234 if (pNetwork->bssht.bdSupportHT)
1236 pHTInfo->bCurrentHTSupport = true;
1237 pHTInfo->ePeerHTSpecVer = pNetwork->bssht.bdHTSpecVer;
1239 // Save HTCap and HTInfo information Element
1240 if(pNetwork->bssht.bdHTCapLen > 0 && pNetwork->bssht.bdHTCapLen <= sizeof(pHTInfo->PeerHTCapBuf))
1241 memcpy(pHTInfo->PeerHTCapBuf, pNetwork->bssht.bdHTCapBuf, pNetwork->bssht.bdHTCapLen);
1243 if(pNetwork->bssht.bdHTInfoLen > 0 && pNetwork->bssht.bdHTInfoLen <= sizeof(pHTInfo->PeerHTInfoBuf))
1244 memcpy(pHTInfo->PeerHTInfoBuf, pNetwork->bssht.bdHTInfoBuf, pNetwork->bssht.bdHTInfoLen);
1246 // Check whether RT to RT aggregation mode is enabled
1247 if(pHTInfo->bRegRT2RTAggregation)
1249 pHTInfo->bCurrentRT2RTAggregation = pNetwork->bssht.bdRT2RTAggregation;
1250 pHTInfo->bCurrentRT2RTLongSlotTime = pNetwork->bssht.bdRT2RTLongSlotTime;
1254 pHTInfo->bCurrentRT2RTAggregation = false;
1255 pHTInfo->bCurrentRT2RTLongSlotTime = false;
1258 // Determine the IOT Peer Vendor.
1259 HTIOTPeerDetermine(ieee);
1261 // Decide IOT Action
1262 // Must be called after the parameter of pHTInfo->bCurrentRT2RTAggregation is decided
1263 pHTInfo->IOTAction = 0;
1264 bIOTAction = HTIOTActIsDisableMCS14(ieee, pNetwork->bssid);
1266 pHTInfo->IOTAction |= HT_IOT_ACT_DISABLE_MCS14;
1268 bIOTAction = HTIOTActIsDisableMCS15(ieee);
1270 pHTInfo->IOTAction |= HT_IOT_ACT_DISABLE_MCS15;
1272 bIOTAction = HTIOTActIsDisableMCSTwoSpatialStream(ieee, pNetwork->bssid);
1274 pHTInfo->IOTAction |= HT_IOT_ACT_DISABLE_ALL_2SS;
1277 bIOTAction = HTIOTActIsDisableEDCATurbo(ieee, pNetwork->bssid);
1279 pHTInfo->IOTAction |= HT_IOT_ACT_DISABLE_EDCA_TURBO;
1281 bIOTAction = HTIOTActIsMgntUseCCK6M(pNetwork);
1283 pHTInfo->IOTAction |= HT_IOT_ACT_MGNT_USE_CCK_6M;
1285 bIOTAction = HTIOTActIsCCDFsync(pNetwork->bssid);
1287 pHTInfo->IOTAction |= HT_IOT_ACT_CDD_FSYNC;
1293 pHTInfo->bCurrentHTSupport = false;
1294 pHTInfo->bCurrentRT2RTAggregation = false;
1295 pHTInfo->bCurrentRT2RTLongSlotTime = false;
1297 pHTInfo->IOTAction = 0;
1302 void HTUpdateSelfAndPeerSetting(struct ieee80211_device *ieee, struct ieee80211_network *pNetwork)
1304 PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo;
1305 // PHT_CAPABILITY_ELE pPeerHTCap = (PHT_CAPABILITY_ELE)pNetwork->bssht.bdHTCapBuf;
1306 PHT_INFORMATION_ELE pPeerHTInfo = (PHT_INFORMATION_ELE)pNetwork->bssht.bdHTInfoBuf;
1308 if(pHTInfo->bCurrentHTSupport)
1311 // Config current operation mode.
1313 if(pNetwork->bssht.bdHTInfoLen != 0)
1314 pHTInfo->CurrentOpMode = pPeerHTInfo->OptMode;
1317 // <TODO: Config according to OBSS non-HT STA present!!>
1321 EXPORT_SYMBOL(HTUpdateSelfAndPeerSetting);
1323 /********************************************************************************************************************
1324 *function: check whether HT control field exists
1325 * input: struct ieee80211_device *ieee
1326 * u8* pFrame //coming skb->data
1328 * return: return true if HT control field exists(false otherwise)
1330 ********************************************************************************************************************/
1331 u8 HTCCheck(struct ieee80211_device *ieee, u8 *pFrame)
1333 if(ieee->pHTInfo->bCurrentHTSupport)
1335 if( (IsQoSDataFrame(pFrame) && Frame_Order(pFrame)) == 1)
1337 IEEE80211_DEBUG(IEEE80211_DL_HT, "HT CONTROL FILED EXIST!!\n");
1345 // This function set bandwidth mode in protocol layer.
1347 void HTSetConnectBwMode(struct ieee80211_device *ieee, HT_CHANNEL_WIDTH Bandwidth, HT_EXTCHNL_OFFSET Offset)
1349 PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo;
1352 if(pHTInfo->bRegBW40MHz == false)
1357 // To reduce dummy operation
1358 // if((pHTInfo->bCurBW40MHz==false && Bandwidth==HT_CHANNEL_WIDTH_20) ||
1359 // (pHTInfo->bCurBW40MHz==true && Bandwidth==HT_CHANNEL_WIDTH_20_40 && Offset==pHTInfo->CurSTAExtChnlOffset))
1362 // spin_lock_irqsave(&(ieee->bw_spinlock), flags);
1363 if(pHTInfo->bSwBwInProgress) {
1364 // spin_unlock_irqrestore(&(ieee->bw_spinlock), flags);
1367 //if in half N mode, set to 20M bandwidth please 09.08.2008 WB.
1368 if(Bandwidth==HT_CHANNEL_WIDTH_20_40 && (!ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev)))
1370 // Handle Illegal extension channel offset!!
1371 if(ieee->current_network.channel<2 && Offset==HT_EXTCHNL_OFFSET_LOWER)
1372 Offset = HT_EXTCHNL_OFFSET_NO_EXT;
1373 if(Offset==HT_EXTCHNL_OFFSET_UPPER || Offset==HT_EXTCHNL_OFFSET_LOWER) {
1374 pHTInfo->bCurBW40MHz = true;
1375 pHTInfo->CurSTAExtChnlOffset = Offset;
1377 pHTInfo->bCurBW40MHz = false;
1378 pHTInfo->CurSTAExtChnlOffset = HT_EXTCHNL_OFFSET_NO_EXT;
1381 pHTInfo->bCurBW40MHz = false;
1382 pHTInfo->CurSTAExtChnlOffset = HT_EXTCHNL_OFFSET_NO_EXT;
1385 pHTInfo->bSwBwInProgress = true;
1387 // TODO: 2007.7.13 by Emily Wait 2000ms in order to guarantee that switching
1388 // bandwidth is executed after scan is finished. It is a temporal solution
1389 // because software should ganrantee the last operation of switching bandwidth
1390 // is executed properlly.
1391 HTSetConnectBwModeCallback(ieee);
1393 // spin_unlock_irqrestore(&(ieee->bw_spinlock), flags);
1396 void HTSetConnectBwModeCallback(struct ieee80211_device *ieee)
1398 PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo;
1400 IEEE80211_DEBUG(IEEE80211_DL_HT, "======>%s()\n", __func__);
1402 if(pHTInfo->bCurBW40MHz)
1404 if(pHTInfo->CurSTAExtChnlOffset==HT_EXTCHNL_OFFSET_UPPER)
1405 ieee->set_chan(ieee->dev, ieee->current_network.channel+2);
1406 else if(pHTInfo->CurSTAExtChnlOffset==HT_EXTCHNL_OFFSET_LOWER)
1407 ieee->set_chan(ieee->dev, ieee->current_network.channel-2);
1409 ieee->set_chan(ieee->dev, ieee->current_network.channel);
1411 ieee->SetBWModeHandler(ieee->dev, HT_CHANNEL_WIDTH_20_40, pHTInfo->CurSTAExtChnlOffset);
1413 ieee->set_chan(ieee->dev, ieee->current_network.channel);
1414 ieee->SetBWModeHandler(ieee->dev, HT_CHANNEL_WIDTH_20, HT_EXTCHNL_OFFSET_NO_EXT);
1417 pHTInfo->bSwBwInProgress = false;