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drivers/staging: Remove useless return variables
[linux-2.6-block.git] / drivers / staging / rtl8192u / ieee80211 / rtl819x_HTProc.c
CommitLineData
8fc8598e
JC		 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"
5u8 MCS_FILTER_ALL[16] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x1f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
6
7u8 MCS_FILTER_1SS[16] = {0xff, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
8
9u16 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,
35997ff0 24 594, 405, 486, 567, 486, 567, 648, 729, 648, 729, 810, 810, 891}, // Long GI, 40MHz
8fc8598e
JC		 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
32static u8 UNKNOWN_BORADCOM[3] = {0x00, 0x14, 0xbf};
33static u8 LINKSYSWRT330_LINKSYSWRT300_BROADCOM[3] = {0x00, 0x1a, 0x70};
34static u8 LINKSYSWRT350_LINKSYSWRT150_BROADCOM[3] = {0x00, 0x1d, 0x7e};
35static u8 NETGEAR834Bv2_BROADCOM[3] = {0x00, 0x1b, 0x2f};
36static u8 BELKINF5D8233V1_RALINK[3] = {0x00, 0x17, 0x3f}; //cosa 03202008
37static u8 BELKINF5D82334V3_RALINK[3] = {0x00, 0x1c, 0xdf};
38static u8 PCI_RALINK[3] = {0x00, 0x90, 0xcc};
39static u8 EDIMAX_RALINK[3] = {0x00, 0x0e, 0x2e};
40static u8 AIRLINK_RALINK[3] = {0x00, 0x18, 0x02};
41//static u8 DLINK_ATHEROS[3] = {0x00, 0x1c, 0xf0};
42static u8 CISCO_BROADCOM[3] = {0x00, 0x17, 0x94};
43
39cfb97b 44// 2008/04/01 MH For Cisco G mode RX TP We need to change FW duration. Should we put the
8fc8598e
JC		 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 * *****************************************************************************************************************/
2b16648c 54void HTUpdateDefaultSetting(struct ieee80211_device *ieee)
8fc8598e
JC		 55{
56 PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo;
57 //const typeof( ((struct ieee80211_device *)0)->pHTInfo ) *__mptr = &pHTInfo;
58
59 //printk("pHTinfo:%p, &pHTinfo:%p, mptr:%p, offsetof:%x\n", pHTInfo, &pHTInfo, __mptr, offsetof(struct ieee80211_device, pHTInfo));
60 //printk("===>ieee:%p,\n", ieee);
61 // ShortGI support
62 pHTInfo->bRegShortGI20MHz= 1;
63 pHTInfo->bRegShortGI40MHz= 1;
64
65 // 40MHz channel support
66 pHTInfo->bRegBW40MHz = 1;
67
68 // CCK rate support in 40MHz channel
69 if(pHTInfo->bRegBW40MHz)
70 pHTInfo->bRegSuppCCK = 1;
71 else
72 pHTInfo->bRegSuppCCK = true;
73
74 // AMSDU related
75 pHTInfo->nAMSDU_MaxSize = 7935UL;
76 pHTInfo->bAMSDU_Support = 0;
77
78 // AMPDU related
79 pHTInfo->bAMPDUEnable = 1;
80 pHTInfo->AMPDU_Factor = 2; //// 0: 2n13(8K), 1:2n14(16K), 2:2n15(32K), 3:2n16(64k)
81 pHTInfo->MPDU_Density = 0;// 0: No restriction, 1: 1/8usec, 2: 1/4usec, 3: 1/2usec, 4: 1usec, 5: 2usec, 6: 4usec, 7:8usec
82
83 // MIMO Power Save
84 pHTInfo->SelfMimoPs = 3;// 0: Static Mimo Ps, 1: Dynamic Mimo Ps, 3: No Limitation, 2: Reserved(Set to 3 automatically.)
85 if(pHTInfo->SelfMimoPs == 2)
86 pHTInfo->SelfMimoPs = 3;
87 // 8190 only. Assign rate operation mode to firmware
88 ieee->bTxDisableRateFallBack = 0;
89 ieee->bTxUseDriverAssingedRate = 0;
90
35997ff0 91#ifdef TO_DO_LIST
8fc8598e
JC		 92 // 8190 only. Assign duration operation mode to firmware
93 pMgntInfo->bTxEnableFwCalcDur = (BOOLEAN)pNdisCommon->bRegTxEnableFwCalcDur;
94#endif
95 // 8190 only, Realtek proprietary aggregation mode
96 // Set MPDUDensity=2, 1: Set MPDUDensity=2(32k) for Realtek AP and set MPDUDensity=0(8k) for others
97 pHTInfo->bRegRT2RTAggregation = 1;//0: Set MPDUDensity=2, 1: Set MPDUDensity=2(32k) for Realtek AP and set MPDUDensity=0(8k) for others
98
99 // For Rx Reorder Control
100 pHTInfo->bRegRxReorderEnable = 1;
101 pHTInfo->RxReorderWinSize = 64;
102 pHTInfo->RxReorderPendingTime = 30;
103
104#ifdef USB_TX_DRIVER_AGGREGATION_ENABLE
105 pHTInfo->UsbTxAggrNum = 4;
106#endif
107#ifdef USB_RX_AGGREGATION_SUPPORT
108 pHTInfo->UsbRxFwAggrEn = 1;
109 pHTInfo->UsbRxFwAggrPageNum = 24;
110 pHTInfo->UsbRxFwAggrPacketNum = 8;
111 pHTInfo->UsbRxFwAggrTimeout = 16; ////usb rx FW aggregation timeout threshold.It's in units of 64us
112#endif
113
114
115}
116/********************************************************************************************************************
117 *function: This function print out each field on HT capability IE mainly from (Beacon/ProbeRsp/AssocReq)
118 * input: u8* CapIE //Capability IE to be printed out
35997ff0 119 * u8* TitleString //mainly print out caller function
8fc8598e
JC		 120 * output: none
121 * return: none
122 * notice: Driver should not print out this message by default.
123 * *****************************************************************************************************************/
2b16648c 124void HTDebugHTCapability(u8 *CapIE, u8 *TitleString )
8fc8598e
JC		 125{
126
127 static u8 EWC11NHTCap[] = {0x00, 0x90, 0x4c, 0x33}; // For 11n EWC definition, 2007.07.17, by Emily
35997ff0 128 PHT_CAPABILITY_ELE pCapELE;
8fc8598e
JC		 129
130 if(!memcmp(CapIE, EWC11NHTCap, sizeof(EWC11NHTCap)))
131 {
132 //EWC IE
f8628a47 133 IEEE80211_DEBUG(IEEE80211_DL_HT, "EWC IE in %s()\n", __func__);
8fc8598e
JC		 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
35997ff0 156 * u8* TitleString //mainly print out caller function
8fc8598e
JC		 157 * output: none
158 * return: none
159 * notice: Driver should not print out this message by default.
160 * *****************************************************************************************************************/
2b16648c 161void HTDebugHTInfo(u8 *InfoIE, u8 *TitleString)
8fc8598e
JC		 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
f8628a47 170 IEEE80211_DEBUG(IEEE80211_DL_HT, "EWC IE in %s()\n", __func__);
8fc8598e
JC		 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 =");
ad638459 180 switch (pHTInfoEle->ExtChlOffset)
8fc8598e
JC		 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 = ");
ad638459 198 switch (pHTInfoEle->OptMode)
8fc8598e
JC		 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/*
35997ff0 220* Return: true if station in half n mode and AP supports 40 bw
8fc8598e 221*/
140cdd73 222static bool IsHTHalfNmode40Bandwidth(struct ieee80211_device *ieee)
8fc8598e
JC		 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;
35997ff0 231 else if(!ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev)) // station in half n mode
8fc8598e
JC		 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
140cdd73 241static bool IsHTHalfNmodeSGI(struct ieee80211_device *ieee, bool is40MHz)
8fc8598e
JC		 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;
35997ff0 248 else if(!ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev)) // station in half n mode
8fc8598e
JC		 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
2b16648c 268u16 HTHalfMcsToDataRate(struct ieee80211_device *ieee, u8 nMcsRate)
8fc8598e
JC		 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
2b16648c 281u16 HTMcsToDataRate( struct ieee80211_device *ieee, u8 nMcsRate)
8fc8598e
JC		 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.
35997ff0
SH		 294 * input: struct ieee80211_device* ieee
295 * u8 nDataRate
8fc8598e
JC		 296 * output: none
297 * return: tx rate
298 * notice: quite unsure about how to use this function //wb
299 * *****************************************************************************************************************/
2b16648c 300u16 TxCountToDataRate( struct ieee80211_device *ieee, u8 nDataRate)
8fc8598e
JC		 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
2b16648c 347bool IsHTHalfNmodeAPs(struct ieee80211_device *ieee)
8fc8598e
JC		 348{
349 bool retValue = false;
2b16648c 350 struct ieee80211_network *net = &ieee->current_network;
8fc8598e
JC		 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) ||
e406322b
MCC		 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;
8fc8598e
JC		 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.
35997ff0 374 * input: struct ieee80211_device* ieee
8fc8598e
JC		 375 * output: none
376 * return:
377 * notice:
378 * *****************************************************************************************************************/
140cdd73 379static void HTIOTPeerDetermine(struct ieee80211_device *ieee)
8fc8598e
JC		 380{
381 PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo;
2b16648c 382 struct ieee80211_network *net = &ieee->current_network;
8fc8598e
JC		 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.
35997ff0
SH		 411 * input: struct ieee80211_device* ieee
412 * u8 * PeerMacAddr
8fc8598e
JC		 413 * output: none
414 * return: return 1 if driver should declare MCS13 only(otherwise return 0)
415 * *****************************************************************************************************************/
140cdd73 416static u8 HTIOTActIsDisableMCS14(struct ieee80211_device *ieee, u8 *PeerMacAddr)
8fc8598e 417{
4764ca98 418 return 0;
8fc8598e
JC		 419 }
420
421
422/**
423* Function: HTIOTActIsDisableMCS15
424*
25985edc 425* Overview: Check whether driver should declare capability of receiving MCS15
8fc8598e
JC		 426*
427* Input:
428* PADAPTER Adapter,
429*
430* Output: None
35997ff0 431* Return: true if driver should disable MCS15
8fc8598e
JC		 432* 2008.04.15 Emily
433*/
140cdd73 434static bool HTIOTActIsDisableMCS15(struct ieee80211_device *ieee)
8fc8598e
JC		 435{
436 bool retValue = false;
437
438#ifdef TODO
439 // Apply for 819u only
440#if (HAL_CODE_BASE==RTL8192)
441
442#if (DEV_BUS_TYPE == USB_INTERFACE)
443 // Alway disable MCS15 by Jerry Chang's request.by Emily, 2008.04.15
444 retValue = true;
445#elif (DEV_BUS_TYPE == PCI_INTERFACE)
446 // Enable MCS15 if the peer is Cisco AP. by Emily, 2008.05.12
447// if(pBssDesc->bCiscoCapExist)
448// retValue = false;
449// else
450 retValue = false;
451#endif
452#endif
453#endif
454 // Jerry Chang suggest that 8190 1x2 does not need to disable MCS15
455
456 return retValue;
457}
458
459/**
460* Function: HTIOTActIsDisableMCSTwoSpatialStream
461*
25985edc 462* Overview: Check whether driver should declare capability of receiving All 2 ss packets
8fc8598e
JC		 463*
464* Input:
465* PADAPTER Adapter,
466*
467* Output: None
35997ff0 468* Return: true if driver should disable all two spatial stream packet
8fc8598e
JC		 469* 2008.04.21 Emily
470*/
140cdd73
AR		 471static bool HTIOTActIsDisableMCSTwoSpatialStream(struct ieee80211_device *ieee,
472 u8 *PeerMacAddr)
8fc8598e
JC		 473{
474 bool retValue = false;
475
476#ifdef TODO
477 // Apply for 819u only
8fc8598e
JC		 478#endif
479 return retValue;
480}
481
482/********************************************************************************************************************
483 *function: Check whether driver should disable EDCA turbo mode
35997ff0
SH		 484 * input: struct ieee80211_device* ieee
485 * u8* PeerMacAddr
8fc8598e
JC		 486 * output: none
487 * return: return 1 if driver should disable EDCA turbo mode(otherwise return 0)
488 * *****************************************************************************************************************/
140cdd73
AR		 489static u8 HTIOTActIsDisableEDCATurbo(struct ieee80211_device *ieee,
490 u8 *PeerMacAddr)
8fc8598e
JC		 491{
492 u8 retValue = false; // default enable EDCA Turbo mode.
493 // Set specific EDCA parameter for different AP in DM handler.
494
495 return retValue;
8fc8598e
JC		 496}
497
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
501 * output: none
502 * return: return 1 if true
503 * *****************************************************************************************************************/
140cdd73 504static u8 HTIOTActIsMgntUseCCK6M(struct ieee80211_network *network)
8fc8598e
JC		 505{
506 u8 retValue = 0;
507
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.
510
511 if(network->broadcom_cap_exist)
512 {
513 retValue = 1;
514 }
515
516 return retValue;
517}
518
140cdd73 519static u8 HTIOTActIsCCDFsync(u8 *PeerMacAddr)
8fc8598e
JC		 520{
521 u8 retValue = 0;
522 if( (memcmp(PeerMacAddr, UNKNOWN_BORADCOM, 3)==0) ||
e406322b
MCC		 523 (memcmp(PeerMacAddr, LINKSYSWRT330_LINKSYSWRT300_BROADCOM, 3)==0) ||
524 (memcmp(PeerMacAddr, LINKSYSWRT350_LINKSYSWRT150_BROADCOM, 3) ==0))
8fc8598e
JC		 525 {
526 retValue = 1;
527 }
528
529 return retValue;
530}
531
532void HTResetIOTSetting(
533 PRT_HIGH_THROUGHPUT pHTInfo
534)
535{
536 pHTInfo->IOTAction = 0;
537 pHTInfo->IOTPeer = HT_IOT_PEER_UNKNOWN;
538}
539
540
541/********************************************************************************************************************
542 *function: Construct Capablility Element in Beacon... if HTEnable is turned on
35997ff0
SH		 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
8fc8598e
JC		 547 * output: none
548 * return: none
549 * notice: posHTCap can't be null and should be initialized before.
550 * *****************************************************************************************************************/
2b16648c 551void HTConstructCapabilityElement(struct ieee80211_device *ieee, u8 *posHTCap, u8 *len, u8 IsEncrypt)
8fc8598e
JC		 552{
553 PRT_HIGH_THROUGHPUT pHT = ieee->pHTInfo;
35997ff0 554 PHT_CAPABILITY_ELE pCapELE = NULL;
8fc8598e
JC		 555 //u8 bIsDeclareMCS13;
556
557 if ((posHTCap == NULL) || (pHT == NULL))
558 {
559 IEEE80211_DEBUG(IEEE80211_DL_ERR, "posHTCap or pHTInfo can't be null in HTConstructCapabilityElement()\n");
560 return;
561 }
562 memset(posHTCap, 0, *len);
563 if(pHT->ePeerHTSpecVer == HT_SPEC_VER_EWC)
564 {
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]);
568 }else
569 {
570 pCapELE = (PHT_CAPABILITY_ELE)posHTCap;
571 }
572
573
574 //HT capability info
35997ff0 575 pCapELE->AdvCoding = 0; // This feature is not supported now!!
8fc8598e
JC		 576 if(ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev))
577 {
578 pCapELE->ChlWidth = 0;
579 }
580 else
581 {
582 pCapELE->ChlWidth = (pHT->bRegBW40MHz?1:0);
583 }
584
35997ff0
SH		 585// pCapELE->ChlWidth = (pHT->bRegBW40MHz?1:0);
586 pCapELE->MimoPwrSave = pHT->SelfMimoPs;
8fc8598e
JC		 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);
35997ff0
SH		 592 pCapELE->TxSTBC = 1;
593 pCapELE->RxSTBC = 0;
8fc8598e
JC		 594 pCapELE->DelayBA = 0; // Do not support now!!
595 pCapELE->MaxAMSDUSize = (MAX_RECEIVE_BUFFER_SIZE>=7935)?1:0;
35997ff0 596 pCapELE->DssCCk = ((pHT->bRegBW40MHz)?(pHT->bRegSuppCCK?1:0):0);
8fc8598e
JC		 597 pCapELE->PSMP = 0; // Do not support now!!
598 pCapELE->LSigTxopProtect = 0; // Do not support now!!
599
600
601 //MAC HT parameters info
e406322b 602 // TODO: Nedd to take care of this part
8fc8598e
JC		 603 IEEE80211_DEBUG(IEEE80211_DL_HT, "TX HT cap/info ele BW=%d MaxAMSDUSize:%d DssCCk:%d\n", pCapELE->ChlWidth, pCapELE->MaxAMSDUSize, pCapELE->DssCCk);
604
605 if( IsEncrypt)
606 {
35997ff0
SH		 607 pCapELE->MPDUDensity = 7; // 8us
608 pCapELE->MaxRxAMPDUFactor = 2; // 2 is for 32 K and 3 is 64K
8fc8598e
JC		 609 }
610 else
611 {
35997ff0
SH		 612 pCapELE->MaxRxAMPDUFactor = 3; // 2 is for 32 K and 3 is 64K
613 pCapELE->MPDUDensity = 0; // no density
8fc8598e
JC		 614 }
615
616 //Supported MCS set
617 memcpy(pCapELE->MCS, ieee->Regdot11HTOperationalRateSet, 16);
618 if(pHT->IOTAction & HT_IOT_ACT_DISABLE_MCS15)
619 pCapELE->MCS[1] &= 0x7f;
620
621 if(pHT->IOTAction & HT_IOT_ACT_DISABLE_MCS14)
622 pCapELE->MCS[1] &= 0xbf;
623
624 if(pHT->IOTAction & HT_IOT_ACT_DISABLE_ALL_2SS)
625 pCapELE->MCS[1] &= 0x00;
626
627 // 2008.06.12
628 // For RTL819X, if pairwisekey = wep/tkip, ap is ralink, we support only MCS0~7.
629 if(ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev))
630 {
631 int i;
632 for(i = 1; i< 16; i++)
633 pCapELE->MCS[i] = 0;
634 }
635
636 //Extended HT Capability Info
637 memset(&pCapELE->ExtHTCapInfo, 0, 2);
638
639
640 //TXBF Capabilities
641 memset(pCapELE->TxBFCap, 0, 4);
642
643 //Antenna Selection Capabilities
644 pCapELE->ASCap = 0;
645//add 2 to give space for element ID and len when construct frames
646 if(pHT->ePeerHTSpecVer == HT_SPEC_VER_EWC)
647 *len = 30 + 2;
648 else
649 *len = 26 + 2;
650
651
652
653// IEEE80211_DEBUG_DATA(IEEE80211_DL_DATA | IEEE80211_DL_HT, posHTCap, *len -2);
654
655 //Print each field in detail. Driver should not print out this message by default
656// HTDebugHTCapability(posHTCap, (u8*)"HTConstructCapability()");
657 return;
658
659}
660/********************************************************************************************************************
661 *function: Construct Information Element in Beacon... if HTEnable is turned on
35997ff0
SH		 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
8fc8598e
JC		 666 * output: none
667 * return: none
668 * notice: posHTCap can't be null and be initialized before. only AP and IBSS sta should do this
669 * *****************************************************************************************************************/
2b16648c 670void HTConstructInfoElement(struct ieee80211_device *ieee, u8 *posHTInfo, u8 *len, u8 IsEncrypt)
8fc8598e
JC		 671{
672 PRT_HIGH_THROUGHPUT pHT = ieee->pHTInfo;
673 PHT_INFORMATION_ELE pHTInfoEle = (PHT_INFORMATION_ELE)posHTInfo;
674 if ((posHTInfo == NULL) || (pHTInfoEle == NULL))
675 {
676 IEEE80211_DEBUG(IEEE80211_DL_ERR, "posHTInfo or pHTInfoEle can't be null in HTConstructInfoElement()\n");
677 return;
678 }
679
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
682 {
35997ff0
SH		 683 pHTInfoEle->ControlChl = ieee->current_network.channel;
684 pHTInfoEle->ExtChlOffset = ((pHT->bRegBW40MHz == false)?HT_EXTCHNL_OFFSET_NO_EXT:
8fc8598e
JC		 685 (ieee->current_network.channel<=6)?
686 HT_EXTCHNL_OFFSET_UPPER:HT_EXTCHNL_OFFSET_LOWER);
687 pHTInfoEle->RecommemdedTxWidth = pHT->bRegBW40MHz;
35997ff0 688 pHTInfoEle->RIFS = 0;
8fc8598e
JC		 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;
698
699 memset(pHTInfoEle->BasicMSC, 0, 16);
700
701
702 *len = 22 + 2; //same above
703
704 }
705 else
706 {
707 //STA should not generate High Throughput Information Element
708 *len = 0;
709 }
710 //IEEE80211_DEBUG_DATA(IEEE80211_DL_DATA | IEEE80211_DL_HT, posHTInfo, *len - 2);
711 //HTDebugHTInfo(posHTInfo, "HTConstructInforElement");
712 return;
713}
714
715/*
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
721 * at the same time.
722 *
723 * Frame Format
724 * Element ID Length OUI Type1 Reserved
725 * 1 byte 1 byte 3 bytes 1 byte 1 byte
726 *
35997ff0
SH		 727 * OUI = 0x00, 0xe0, 0x4c,
728 * Type = 0x02
729 * Reserved = 0x00
8fc8598e
JC		 730 *
731 * 2007.8.21 by Emily
732*/
733/********************************************************************************************************************
734 *function: Construct Information Element in Beacon... in RT2RT condition
35997ff0
SH		 735 * input: struct ieee80211_device* ieee
736 * u8* posRT2RTAgg //pointer to store Information Ele
737 * u8* len //store len
8fc8598e
JC		 738 * output: none
739 * return: none
740 * notice:
741 * *****************************************************************************************************************/
2b16648c 742void HTConstructRT2RTAggElement(struct ieee80211_device *ieee, u8 *posRT2RTAgg, u8 *len)
8fc8598e
JC		 743{
744 if (posRT2RTAgg == NULL) {
745 IEEE80211_DEBUG(IEEE80211_DL_ERR, "posRT2RTAgg can't be null in HTConstructRT2RTAggElement()\n");
746 return;
747 }
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;
755
756 if(ieee->bSupportRemoteWakeUp) {
757 *posRT2RTAgg |= 0x08;//RT_HT_CAP_USE_WOW;
758 }
759
760 *len = 6 + 2;
761 return;
762#ifdef TODO
50a09b3b 763#if (HAL_CODE_BASE == RTL8192 && DEV_BUS_TYPE == USB_INTERFACE)
8fc8598e
JC		 764 /*
765 //Emily. If it is required to Ask Realtek AP to send AMPDU during AES mode, enable this
766 section of code.
767 if(IS_UNDER_11N_AES_MODE(Adapter))
768 {
769 posRT2RTAgg->Octet[5] |=RT_HT_CAP_USE_AMPDU;
770 }else
771 {
772 posRT2RTAgg->Octet[5] &= 0xfb;
773 }
774 */
775
776#else
777 // Do Nothing
778#endif
779
780 posRT2RTAgg->Length = 6;
781#endif
782
783
784
785
786}
787
788
789/********************************************************************************************************************
790 *function: Pick the right Rate Adaptive table to use
35997ff0
SH		 791 * input: struct ieee80211_device* ieee
792 * u8* pOperateMCS //A pointer to MCS rate bitmap
8fc8598e
JC		 793 * return: always we return true
794 * notice:
795 * *****************************************************************************************************************/
140cdd73 796static u8 HT_PickMCSRate(struct ieee80211_device *ieee, u8 *pOperateMCS)
8fc8598e
JC		 797{
798 u8 i;
799 if (pOperateMCS == NULL)
800 {
801 IEEE80211_DEBUG(IEEE80211_DL_ERR, "pOperateMCS can't be null in HT_PickMCSRate()\n");
802 return false;
803 }
804
ad638459 805 switch (ieee->mode)
8fc8598e
JC		 806 {
807 case IEEE_A:
808 case IEEE_B:
809 case IEEE_G:
810 //legacy rate routine handled at selectedrate
811
812 //no MCS rate
813 for(i=0;i<=15;i++){
814 pOperateMCS[i] = 0;
815 }
816 break;
817
818 case IEEE_N_24G: //assume CCK rate ok
819 case IEEE_N_5G:
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().
822
823 //HT part
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;
828 break;
829
830 //should never reach here
831 default:
832
833 break;
834
835 }
836
837 return true;
838}
839
840/*
841* Description:
842* This function will get the highest speed rate in input MCS set.
843*
35997ff0 844* /param Adapter Pionter to Adapter entity
8fc8598e
JC		 845* pMCSRateSet Pointer to MCS rate bitmap
846* pMCSFilter Pointer to MCS rate filter
847*
848* /return Highest MCS rate included in pMCSRateSet and filtered by pMCSFilter.
849*
850*/
851/********************************************************************************************************************
852 *function: This function will get the highest speed rate in input MCS set.
35997ff0
SH		 853 * input: struct ieee80211_device* ieee
854 * u8* pMCSRateSet //Pointer to MCS rate bitmap
855 * u8* pMCSFilter //Pointer to MCS rate filter
8fc8598e
JC		 856 * return: Highest MCS rate included in pMCSRateSet and filtered by pMCSFilter
857 * notice:
858 * *****************************************************************************************************************/
2b16648c 859u8 HTGetHighestMCSRate(struct ieee80211_device *ieee, u8 *pMCSRateSet, u8 *pMCSFilter)
8fc8598e
JC		 860{
861 u8 i, j;
862 u8 bitMap;
863 u8 mcsRate = 0;
864 u8 availableMcsRate[16];
865 if (pMCSRateSet == NULL || pMCSFilter == NULL)
866 {
867 IEEE80211_DEBUG(IEEE80211_DL_ERR, "pMCSRateSet or pMCSFilter can't be null in HTGetHighestMCSRate()\n");
868 return false;
869 }
870 for(i=0; i<16; i++)
871 availableMcsRate[i] = pMCSRateSet[i] & pMCSFilter[i];
872
873 for(i = 0; i < 16; i++)
874 {
875 if(availableMcsRate[i] != 0)
876 break;
877 }
878 if(i == 16)
879 return false;
880
881 for(i = 0; i < 16; i++)
882 {
883 if(availableMcsRate[i] != 0)
884 {
885 bitMap = availableMcsRate[i];
886 for(j = 0; j < 8; j++)
887 {
888 if((bitMap%2) != 0)
889 {
890 if(HTMcsToDataRate(ieee, (8*i+j)) > HTMcsToDataRate(ieee, mcsRate))
891 mcsRate = (8*i+j);
892 }
893 bitMap = bitMap>>1;
894 }
895 }
896 }
897 return (mcsRate|0x80);
898}
899
900
901
902/*
903**
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
907**David 20060906
908**
909** \pHTSupportedCap: the connected STA's supported rate Capability element
910*/
140cdd73
AR		 911static u8 HTFilterMCSRate(struct ieee80211_device *ieee, u8 *pSupportMCS,
912 u8 *pOperateMCS)
8fc8598e
JC		 913{
914
915 u8 i=0;
916
935d59ff 917 // filter out operational rate set not supported by AP, the length of it is 16
8fc8598e
JC		 918 for(i=0;i<=15;i++){
919 pOperateMCS[i] = ieee->Regdot11HTOperationalRateSet[i]&pSupportMCS[i];
920 }
921
922
923 // TODO: adjust our operational rate set according to our channel bandwidth, STBC and Antenna number
924
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);
928
929 // For RTL819X, if pairwisekey = wep/tkip, we support only MCS0~7.
930 if(ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev))
931 pOperateMCS[1] = 0;
932
933 //
934 // For RTL819X, we support only MCS0~15.
935 // And also, we do not know how to use MCS32 now.
936 //
937 for(i=2; i<=15; i++)
938 pOperateMCS[i] = 0;
939
940 return true;
941}
2b16648c 942void HTSetConnectBwMode(struct ieee80211_device *ieee, HT_CHANNEL_WIDTH Bandwidth, HT_EXTCHNL_OFFSET Offset);
8fc8598e
JC		 943void HTOnAssocRsp(struct ieee80211_device *ieee)
944{
945 PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo;
946 PHT_CAPABILITY_ELE pPeerHTCap = NULL;
947 PHT_INFORMATION_ELE pPeerHTInfo = NULL;
948 u16 nMaxAMSDUSize = 0;
2b16648c 949 u8 *pMcsFilter = NULL;
8fc8598e
JC		 950
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
953
954 if( pHTInfo->bCurrentHTSupport == false )
955 {
956 IEEE80211_DEBUG(IEEE80211_DL_ERR, "<=== HTOnAssocRsp(): HT_DISABLE\n");
957 return;
958 }
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));
962
963// HTDebugHTCapability(pHTInfo->PeerHTCapBuf,"HTOnAssocRsp_wq");
964// HTDebugHTInfo(pHTInfo->PeerHTInfoBuf,"HTOnAssocRsp_wq");
965 //
966 if(!memcmp(pHTInfo->PeerHTCapBuf,EWC11NHTCap, sizeof(EWC11NHTCap)))
967 pPeerHTCap = (PHT_CAPABILITY_ELE)(&pHTInfo->PeerHTCapBuf[4]);
968 else
969 pPeerHTCap = (PHT_CAPABILITY_ELE)(pHTInfo->PeerHTCapBuf);
970
971 if(!memcmp(pHTInfo->PeerHTInfoBuf, EWC11NHTInfo, sizeof(EWC11NHTInfo)))
972 pPeerHTInfo = (PHT_INFORMATION_ELE)(&pHTInfo->PeerHTInfoBuf[4]);
973 else
974 pPeerHTInfo = (PHT_INFORMATION_ELE)(pHTInfo->PeerHTInfoBuf);
975
976
977 ////////////////////////////////////////////////////////
978 // Configurations:
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
983 //
984 HTSetConnectBwMode(ieee, (HT_CHANNEL_WIDTH)(pPeerHTCap->ChlWidth), (HT_EXTCHNL_OFFSET)(pPeerHTInfo->ExtChlOffset));
985
986// if(pHTInfo->bCurBW40MHz == true)
987 pHTInfo->bCurTxBW40MHz = ((pPeerHTInfo->RecommemdedTxWidth == 1)?true:false);
988
989 //
990 // Update short GI/ long GI setting
991 //
992 // TODO:
993 pHTInfo->bCurShortGI20MHz=
994 ((pHTInfo->bRegShortGI20MHz)?((pPeerHTCap->ShortGI20Mhz==1)?true:false):false);
995 pHTInfo->bCurShortGI40MHz=
996 ((pHTInfo->bRegShortGI40MHz)?((pPeerHTCap->ShortGI40Mhz==1)?true:false):false);
997
998 //
999 // Config TX STBC setting
1000 //
1001 // TODO:
1002
1003 //
1004 // Config DSSS/CCK mode in 40MHz mode
1005 //
1006 // TODO:
1007 pHTInfo->bCurSuppCCK =
1008 ((pHTInfo->bRegSuppCCK)?((pPeerHTCap->DssCCk==1)?true:false):false);
1009
1010
1011 //
1012 // Config and configure A-MSDU setting
1013 //
1014 pHTInfo->bCurrent_AMSDU_Support = pHTInfo->bAMSDU_Support;
1015
1016 nMaxAMSDUSize = (pPeerHTCap->MaxAMSDUSize==0)?3839:7935;
1017
1018 if(pHTInfo->nAMSDU_MaxSize > nMaxAMSDUSize )
1019 pHTInfo->nCurrent_AMSDU_MaxSize = nMaxAMSDUSize;
1020 else
1021 pHTInfo->nCurrent_AMSDU_MaxSize = pHTInfo->nAMSDU_MaxSize;
1022
1023
1024 //
1025 // Config A-MPDU setting
1026 //
1027 pHTInfo->bCurrentAMPDUEnable = pHTInfo->bAMPDUEnable;
1028
1029 // <1> Decide AMPDU Factor
1030
1031 // By Emily
1032 if(!pHTInfo->bRegRT2RTAggregation)
1033 {
1034 // Decide AMPDU Factor according to protocol handshake
1035 if(pHTInfo->AMPDU_Factor > pPeerHTCap->MaxRxAMPDUFactor)
1036 pHTInfo->CurrentAMPDUFactor = pPeerHTCap->MaxRxAMPDUFactor;
1037 else
1038 pHTInfo->CurrentAMPDUFactor = pHTInfo->AMPDU_Factor;
1039
1040 }else
1041 {
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
8fc8598e
JC		 1044 if (ieee->current_network.bssht.bdRT2RTAggregation)
1045 {
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;
1049 else
1050 pHTInfo->CurrentAMPDUFactor = HT_AGG_SIZE_64K;
1051 }else
1052 {
1053 if(pPeerHTCap->MaxRxAMPDUFactor < HT_AGG_SIZE_32K)
1054 pHTInfo->CurrentAMPDUFactor = pPeerHTCap->MaxRxAMPDUFactor;
1055 else
1056 pHTInfo->CurrentAMPDUFactor = HT_AGG_SIZE_32K;
1057 }
1058 }
1059
1060 // <2> Set AMPDU Minimum MPDU Start Spacing
1061 // 802.11n 3.0 section 9.7d.3
8fc8598e
JC		 1062 if(pHTInfo->MPDU_Density > pPeerHTCap->MPDUDensity)
1063 pHTInfo->CurrentMPDUDensity = pHTInfo->MPDU_Density;
1064 else
1065 pHTInfo->CurrentMPDUDensity = pPeerHTCap->MPDUDensity;
1066 if(ieee->pairwise_key_type != KEY_TYPE_NA )
35997ff0 1067 pHTInfo->CurrentMPDUDensity = 7; // 8us
8fc8598e
JC		 1068 // Force TX AMSDU
1069
1070 // Lanhsin: mark for tmp to avoid deauth by ap from s3
1071 //if(memcmp(pMgntInfo->Bssid, NETGEAR834Bv2_BROADCOM, 3)==0)
1072 if(0)
1073 {
1074
1075 pHTInfo->bCurrentAMPDUEnable = false;
1076 pHTInfo->ForcedAMSDUMode = HT_AGG_FORCE_ENABLE;
1077 pHTInfo->ForcedAMSDUMaxSize = 7935;
1078
1079 pHTInfo->IOTAction |= HT_IOT_ACT_TX_USE_AMSDU_8K;
1080 }
1081
1082 // Rx Reorder Setting
1083 pHTInfo->bCurRxReorderEnable = pHTInfo->bRegRxReorderEnable;
1084
1085 //
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.
1089 //
1090
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;
1095
1096 HTFilterMCSRate(ieee, pPeerHTCap->MCS, ieee->dot11HTOperationalRateSet);
1097
1098 //
1099 // Config MIMO Power Save setting
1100 //
1101 pHTInfo->PeerMimoPs = pPeerHTCap->MimoPwrSave;
1102 if(pHTInfo->PeerMimoPs == MIMO_PS_STATIC)
1103 pMcsFilter = MCS_FILTER_1SS;
1104 else
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;
1110
1111 //
1112 // Config current operation mode.
1113 //
1114 pHTInfo->CurrentOpMode = pPeerHTInfo->OptMode;
1115
1116
1117
1118}
1119
2b16648c 1120void HTSetConnectBwModeCallback(struct ieee80211_device *ieee);
8fc8598e
JC		 1121/********************************************************************************************************************
1122 *function: initialize HT info(struct PRT_HIGH_THROUGHPUT)
35997ff0 1123 * input: struct ieee80211_device* ieee
8fc8598e
JC		 1124 * output: none
1125 * return: none
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?
2b16648c 1129void HTInitializeHTInfo(struct ieee80211_device *ieee)
8fc8598e
JC		 1130{
1131 PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo;
1132
1133 //
1134 // These parameters will be reset when receiving deauthentication packet
1135 //
f8628a47 1136 IEEE80211_DEBUG(IEEE80211_DL_HT, "===========>%s()\n", __func__);
8fc8598e
JC		 1137 pHTInfo->bCurrentHTSupport = false;
1138
1139 // 40MHz channel support
1140 pHTInfo->bCurBW40MHz = false;
1141 pHTInfo->bCurTxBW40MHz = false;
1142
1143 // Short GI support
1144 pHTInfo->bCurShortGI20MHz = false;
1145 pHTInfo->bCurShortGI40MHz = false;
1146 pHTInfo->bForcedShortGI = false;
1147
1148 // CCK rate support
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
1151 // 11N BSS.
1152 pHTInfo->bCurSuppCCK = true;
1153
1154 // AMSDU related
1155 pHTInfo->bCurrent_AMSDU_Support = false;
1156 pHTInfo->nCurrent_AMSDU_MaxSize = pHTInfo->nAMSDU_MaxSize;
1157
1158 // AMPUD related
1159 pHTInfo->CurrentMPDUDensity = pHTInfo->MPDU_Density;
1160 pHTInfo->CurrentAMPDUFactor = pHTInfo->AMPDU_Factor;
1161
1162
1163
1164 // Initialize all of the parameters related to 11n
2b16648c
XR		 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));
8fc8598e
JC		 1169
1170 pHTInfo->bSwBwInProgress = false;
1171 pHTInfo->ChnlOp = CHNLOP_NONE;
1172
1173 // Set default IEEE spec for Draft N
1174 pHTInfo->ePeerHTSpecVer = HT_SPEC_VER_IEEE;
1175
1176 // Realtek proprietary aggregation mode
1177 pHTInfo->bCurrentRT2RTAggregation = false;
1178 pHTInfo->bCurrentRT2RTLongSlotTime = false;
1179 pHTInfo->IOTPeer = 0;
1180 pHTInfo->IOTAction = 0;
1181
1182 //MCS rate initialized here
1183 {
2b16648c 1184 u8 *RegHTSuppRateSets = &(ieee->RegHTSuppRateSet[0]);
8fc8598e
JC		 1185 RegHTSuppRateSets[0] = 0xFF; //support MCS 0~7
1186 RegHTSuppRateSets[1] = 0xFF; //support MCS 8~15
1187 RegHTSuppRateSets[4] = 0x01; //support MCS 32
1188 }
1189}
1190/********************************************************************************************************************
1191 *function: initialize Bss HT structure(struct PBSS_HT)
1192 * input: PBSS_HT pBssHT //to be initialized
1193 * output: none
1194 * return: none
1195 * notice: This function is called when initialize network structure
1196********************************************************************************************************************/
1197void HTInitializeBssDesc(PBSS_HT pBssHT)
1198{
1199
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;
1205
1206 pBssHT->bdHTSpecVer= HT_SPEC_VER_IEEE;
1207
1208 pBssHT->bdRT2RTAggregation = false;
1209 pBssHT->bdRT2RTLongSlotTime = false;
1210}
8fc8598e
JC		 1211/********************************************************************************************************************
1212 *function: initialize Bss HT structure(struct PBSS_HT)
35997ff0
SH		 1213 * input: struct ieee80211_device *ieee
1214 * struct ieee80211_network *pNetwork //usually current network we are live in
8fc8598e
JC		 1215 * output: none
1216 * return: none
1217 * notice: This function should ONLY be called before association
1218********************************************************************************************************************/
2b16648c 1219void HTResetSelfAndSavePeerSetting(struct ieee80211_device *ieee, struct ieee80211_network *pNetwork)
8fc8598e
JC		 1220{
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;
1225// u8* pMcsFilter;
1226 u8 bIOTAction = 0;
1227
1228 //
1229 // Save Peer Setting before Association
1230 //
f8628a47 1231 IEEE80211_DEBUG(IEEE80211_DL_HT, "==============>%s()\n", __func__);
8fc8598e
JC		 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)
1235 {
1236 pHTInfo->bCurrentHTSupport = true;
1237 pHTInfo->ePeerHTSpecVer = pNetwork->bssht.bdHTSpecVer;
1238
1239 // Save HTCap and HTInfo information Element
35997ff0 1240 if(pNetwork->bssht.bdHTCapLen > 0 && pNetwork->bssht.bdHTCapLen <= sizeof(pHTInfo->PeerHTCapBuf))
8fc8598e
JC		 1241 memcpy(pHTInfo->PeerHTCapBuf, pNetwork->bssht.bdHTCapBuf, pNetwork->bssht.bdHTCapLen);
1242
1243 if(pNetwork->bssht.bdHTInfoLen > 0 && pNetwork->bssht.bdHTInfoLen <= sizeof(pHTInfo->PeerHTInfoBuf))
1244 memcpy(pHTInfo->PeerHTInfoBuf, pNetwork->bssht.bdHTInfoBuf, pNetwork->bssht.bdHTInfoLen);
1245
1246 // Check whether RT to RT aggregation mode is enabled
1247 if(pHTInfo->bRegRT2RTAggregation)
1248 {
1249 pHTInfo->bCurrentRT2RTAggregation = pNetwork->bssht.bdRT2RTAggregation;
1250 pHTInfo->bCurrentRT2RTLongSlotTime = pNetwork->bssht.bdRT2RTLongSlotTime;
1251 }
1252 else
1253 {
1254 pHTInfo->bCurrentRT2RTAggregation = false;
1255 pHTInfo->bCurrentRT2RTLongSlotTime = false;
1256 }
1257
1258 // Determine the IOT Peer Vendor.
1259 HTIOTPeerDetermine(ieee);
1260
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);
1265 if(bIOTAction)
1266 pHTInfo->IOTAction |= HT_IOT_ACT_DISABLE_MCS14;
1267
1268 bIOTAction = HTIOTActIsDisableMCS15(ieee);
1269 if(bIOTAction)
1270 pHTInfo->IOTAction |= HT_IOT_ACT_DISABLE_MCS15;
1271
1272 bIOTAction = HTIOTActIsDisableMCSTwoSpatialStream(ieee, pNetwork->bssid);
1273 if(bIOTAction)
1274 pHTInfo->IOTAction |= HT_IOT_ACT_DISABLE_ALL_2SS;
1275
1276
1277 bIOTAction = HTIOTActIsDisableEDCATurbo(ieee, pNetwork->bssid);
1278 if(bIOTAction)
1279 pHTInfo->IOTAction |= HT_IOT_ACT_DISABLE_EDCA_TURBO;
1280
1281 bIOTAction = HTIOTActIsMgntUseCCK6M(pNetwork);
1282 if(bIOTAction)
1283 pHTInfo->IOTAction |= HT_IOT_ACT_MGNT_USE_CCK_6M;
1284
1285 bIOTAction = HTIOTActIsCCDFsync(pNetwork->bssid);
1286 if(bIOTAction)
1287 pHTInfo->IOTAction |= HT_IOT_ACT_CDD_FSYNC;
1288
1289
1290 }
1291 else
1292 {
1293 pHTInfo->bCurrentHTSupport = false;
1294 pHTInfo->bCurrentRT2RTAggregation = false;
1295 pHTInfo->bCurrentRT2RTLongSlotTime = false;
1296
1297 pHTInfo->IOTAction = 0;
1298 }
1299
1300}
1301
2b16648c 1302void HTUpdateSelfAndPeerSetting(struct ieee80211_device *ieee, struct ieee80211_network *pNetwork)
8fc8598e
JC		 1303{
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;
1307
1308 if(pHTInfo->bCurrentHTSupport)
1309 {
1310 //
1311 // Config current operation mode.
1312 //
1313 if(pNetwork->bssht.bdHTInfoLen != 0)
1314 pHTInfo->CurrentOpMode = pPeerHTInfo->OptMode;
1315
1316 //
1317 // <TODO: Config according to OBSS non-HT STA present!!>
1318 //
1319 }
1320}
539b4f72 1321EXPORT_SYMBOL(HTUpdateSelfAndPeerSetting);
8fc8598e 1322
8fc8598e
JC		 1323/********************************************************************************************************************
1324 *function: check whether HT control field exists
35997ff0
SH		 1325 * input: struct ieee80211_device *ieee
1326 * u8* pFrame //coming skb->data
8fc8598e
JC		 1327 * output: none
1328 * return: return true if HT control field exists(false otherwise)
1329 * notice:
1330********************************************************************************************************************/
2b16648c 1331u8 HTCCheck(struct ieee80211_device *ieee, u8 *pFrame)
8fc8598e
JC		 1332{
1333 if(ieee->pHTInfo->bCurrentHTSupport)
1334 {
1335 if( (IsQoSDataFrame(pFrame) && Frame_Order(pFrame)) == 1)
1336 {
1337 IEEE80211_DEBUG(IEEE80211_DL_HT, "HT CONTROL FILED EXIST!!\n");
1338 return true;
1339 }
1340 }
1341 return false;
1342}
1343
1344//
1345// This function set bandwidth mode in protocol layer.
1346//
2b16648c 1347void HTSetConnectBwMode(struct ieee80211_device *ieee, HT_CHANNEL_WIDTH Bandwidth, HT_EXTCHNL_OFFSET Offset)
8fc8598e
JC		 1348{
1349 PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo;
1350// u32 flags = 0;
1351
1352 if(pHTInfo->bRegBW40MHz == false)
1353 return;
1354
1355
1356
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))
1360// return;
1361
1362// spin_lock_irqsave(&(ieee->bw_spinlock), flags);
1363 if(pHTInfo->bSwBwInProgress) {
1364// spin_unlock_irqrestore(&(ieee->bw_spinlock), flags);
1365 return;
1366 }
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)))
1369 {
25985edc 1370 // Handle Illegal extension channel offset!!
8fc8598e
JC		 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;
1376 } else {
1377 pHTInfo->bCurBW40MHz = false;
1378 pHTInfo->CurSTAExtChnlOffset = HT_EXTCHNL_OFFSET_NO_EXT;
1379 }
1380 } else {
1381 pHTInfo->bCurBW40MHz = false;
1382 pHTInfo->CurSTAExtChnlOffset = HT_EXTCHNL_OFFSET_NO_EXT;
1383 }
1384
1385 pHTInfo->bSwBwInProgress = true;
1386
25985edc 1387 // TODO: 2007.7.13 by Emily Wait 2000ms in order to guarantee that switching
8fc8598e
JC		 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);
1392
1393// spin_unlock_irqrestore(&(ieee->bw_spinlock), flags);
1394}
1395
2b16648c 1396void HTSetConnectBwModeCallback(struct ieee80211_device *ieee)
8fc8598e
JC		 1397{
1398 PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo;
1399
f8628a47 1400 IEEE80211_DEBUG(IEEE80211_DL_HT, "======>%s()\n", __func__);
8fc8598e
JC		 1401
1402 if(pHTInfo->bCurBW40MHz)
1403 {
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);
1408 else
1409 ieee->set_chan(ieee->dev, ieee->current_network.channel);
1410
1411 ieee->SetBWModeHandler(ieee->dev, HT_CHANNEL_WIDTH_20_40, pHTInfo->CurSTAExtChnlOffset);
1412 } else {
1413 ieee->set_chan(ieee->dev, ieee->current_network.channel);
1414 ieee->SetBWModeHandler(ieee->dev, HT_CHANNEL_WIDTH_20, HT_EXTCHNL_OFFSET_NO_EXT);
1415 }
1416
1417 pHTInfo->bSwBwInProgress = false;
1418}
Linux 6.x block layer and io_uring tree(s)