1 // SPDX-License-Identifier: GPL-2.0
2
3 /*
4 * As this function is mainly ported from Windows driver, so leave the name
5 * little changed. If any confusion caused, tell me. Created by WB. 2008.05.08
6 */
7 #include "ieee80211.h"
8
9 u8 MCS_FILTER_ALL[16] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x1f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
10
11 u8 MCS_FILTER_1SS[16] = {0xff, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
12
13 u16 MCS_DATA_RATE[2][2][77] = {
14 { {13, 26, 39, 52, 78, 104, 117, 130, 26, 52, 78, 104, 156, 208, 234, 260,
15 39, 78, 117, 234, 312, 351, 390, 52, 104, 156, 208, 312, 416, 468, 520,
16 0, 78, 104, 130, 117, 156, 195, 104, 130, 130, 156, 182, 182, 208, 156, 195,
17 195, 234, 273, 273, 312, 130, 156, 181, 156, 181, 208, 234, 208, 234, 260, 260,
18 286, 195, 234, 273, 234, 273, 312, 351, 312, 351, 390, 390, 429}, // Long GI, 20MHz
19 {14, 29, 43, 58, 87, 116, 130, 144, 29, 58, 87, 116, 173, 231, 260, 289,
20 43, 87, 130, 173, 260, 347, 390, 433, 58, 116, 173, 231, 347, 462, 520, 578,
21 0, 87, 116, 144, 130, 173, 217, 116, 144, 144, 173, 202, 202, 231, 173, 217,
22 217, 260, 303, 303, 347, 144, 173, 202, 173, 202, 231, 260, 231, 260, 289, 289,
23 318, 217, 260, 303, 260, 303, 347, 390, 347, 390, 433, 433, 477} }, // Short GI, 20MHz
24 { {27, 54, 81, 108, 162, 216, 243, 270, 54, 108, 162, 216, 324, 432, 486, 540,
25 81, 162, 243, 324, 486, 648, 729, 810, 108, 216, 324, 432, 648, 864, 972, 1080,
26 12, 162, 216, 270, 243, 324, 405, 216, 270, 270, 324, 378, 378, 432, 324, 405,
27 405, 486, 567, 567, 648, 270, 324, 378, 324, 378, 432, 486, 432, 486, 540, 540,
28 594, 405, 486, 567, 486, 567, 648, 729, 648, 729, 810, 810, 891}, // Long GI, 40MHz
29 {30, 60, 90, 120, 180, 240, 270, 300, 60, 120, 180, 240, 360, 480, 540, 600,
30 90, 180, 270, 360, 540, 720, 810, 900, 120, 240, 360, 480, 720, 960, 1080, 1200,
31 13, 180, 240, 300, 270, 360, 450, 240, 300, 300, 360, 420, 420, 480, 360, 450,
32 450, 540, 630, 630, 720, 300, 360, 420, 360, 420, 480, 540, 480, 540, 600, 600,
33 660, 450, 540, 630, 540, 630, 720, 810, 720, 810, 900, 900, 990} } // Short GI, 40MHz
34 };
35
36 static u8 UNKNOWN_BORADCOM[3] = {0x00, 0x14, 0xbf};
37 static u8 LINKSYSWRT330_LINKSYSWRT300_BROADCOM[3] = {0x00, 0x1a, 0x70};
38 static u8 LINKSYSWRT350_LINKSYSWRT150_BROADCOM[3] = {0x00, 0x1d, 0x7e};
39 static u8 NETGEAR834Bv2_BROADCOM[3] = {0x00, 0x1b, 0x2f};
40 static u8 BELKINF5D8233V1_RALINK[3] = {0x00, 0x17, 0x3f}; //cosa 03202008
41 static u8 BELKINF5D82334V3_RALINK[3] = {0x00, 0x1c, 0xdf};
42 static u8 PCI_RALINK[3] = {0x00, 0x90, 0xcc};
43 static u8 EDIMAX_RALINK[3] = {0x00, 0x0e, 0x2e};
44 static u8 AIRLINK_RALINK[3] = {0x00, 0x18, 0x02};
45 //static u8 DLINK_ATHEROS[3] = {0x00, 0x1c, 0xf0};
46 static u8 CISCO_BROADCOM[3] = {0x00, 0x17, 0x94};
47 /*
48 * 2008/04/01 MH For Cisco G mode RX TP We need to change FW duration. Should we
49 * put the code in other place??
50 * static u8 WIFI_CISCO_G_AP[3] = {0x00, 0x40, 0x96};
51 */
52 /*
53 *function: This function update default settings in pHTInfo structure
54 * input: PRT_HIGH_THROUGHPUT pHTInfo
55 * output: none
56 * return: none
57 * notice: These value need be modified if any changes.
58 */
HTUpdateDefaultSetting(struct ieee80211_device * ieee)59 void HTUpdateDefaultSetting(struct ieee80211_device *ieee)
60 {
61 PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo;
62 //const typeof( ((struct ieee80211_device *)0)->pHTInfo ) *__mptr = &pHTInfo;
63
64 //printk("pHTinfo:%p, &pHTinfo:%p, mptr:%p, offsetof:%x\n", pHTInfo, &pHTInfo, __mptr, offsetof(struct ieee80211_device, pHTInfo));
65 //printk("===>ieee:%p,\n", ieee);
66 // ShortGI support
67 pHTInfo->bRegShortGI20MHz = 1;
68 pHTInfo->bRegShortGI40MHz = 1;
69
70 // 40MHz channel support
71 pHTInfo->bRegBW40MHz = 1;
72
73 // CCK rate support in 40MHz channel
74 if (pHTInfo->bRegBW40MHz)
75 pHTInfo->bRegSuppCCK = 1;
76 else
77 pHTInfo->bRegSuppCCK = true;
78
79 // AMSDU related
80 pHTInfo->nAMSDU_MaxSize = 7935UL;
81 pHTInfo->bAMSDU_Support = 0;
82
83 // AMPDU related
84 pHTInfo->bAMPDUEnable = 1;
85 pHTInfo->AMPDU_Factor = 2; //// 0: 2n13(8K), 1:2n14(16K), 2:2n15(32K), 3:2n16(64k)
86 pHTInfo->MPDU_Density = 0;// 0: No restriction, 1: 1/8usec, 2: 1/4usec, 3: 1/2usec, 4: 1usec, 5: 2usec, 6: 4usec, 7:8usec
87
88 // MIMO Power Save
89 pHTInfo->SelfMimoPs = 3;// 0: Static Mimo Ps, 1: Dynamic Mimo Ps, 3: No Limitation, 2: Reserved(Set to 3 automatically.)
90 if (pHTInfo->SelfMimoPs == 2)
91 pHTInfo->SelfMimoPs = 3;
92 // 8190 only. Assign rate operation mode to firmware
93 ieee->bTxDisableRateFallBack = 0;
94 ieee->bTxUseDriverAssingedRate = 0;
95
96 #ifdef TO_DO_LIST
97 // 8190 only. Assign duration operation mode to firmware
98 pMgntInfo->bTxEnableFwCalcDur = (BOOLEAN)pNdisCommon->bRegTxEnableFwCalcDur;
99 #endif
100 /*
101 * 8190 only, Realtek proprietary aggregation mode
102 * Set MPDUDensity=2, 1: Set MPDUDensity=2(32k) for Realtek AP and set MPDUDensity=0(8k) for others
103 */
104 pHTInfo->bRegRT2RTAggregation = 1;//0: Set MPDUDensity=2, 1: Set MPDUDensity=2(32k) for Realtek AP and set MPDUDensity=0(8k) for others
105
106 // For Rx Reorder Control
107 pHTInfo->bRegRxReorderEnable = 1;
108 pHTInfo->RxReorderWinSize = 64;
109 pHTInfo->RxReorderPendingTime = 30;
110
111 #ifdef USB_TX_DRIVER_AGGREGATION_ENABLE
112 pHTInfo->UsbTxAggrNum = 4;
113 #endif
114 #ifdef USB_RX_AGGREGATION_SUPPORT
115 pHTInfo->UsbRxFwAggrEn = 1;
116 pHTInfo->UsbRxFwAggrPageNum = 24;
117 pHTInfo->UsbRxFwAggrPacketNum = 8;
118 pHTInfo->UsbRxFwAggrTimeout = 16; ////usb rx FW aggregation timeout threshold.It's in units of 64us
119 #endif
120 }
121
122 /*
123 *function: This function print out each field on HT capability
124 * IE mainly from (Beacon/ProbeRsp/AssocReq)
125 * input: u8* CapIE //Capability IE to be printed out
126 * u8* TitleString //mainly print out caller function
127 * output: none
128 * return: none
129 * notice: Driver should not print out this message by default.
130 */
HTDebugHTCapability(u8 * CapIE,u8 * TitleString)131 void HTDebugHTCapability(u8 *CapIE, u8 *TitleString)
132 {
133 static u8 EWC11NHTCap[] = {0x00, 0x90, 0x4c, 0x33}; // For 11n EWC definition, 2007.07.17, by Emily
134 PHT_CAPABILITY_ELE pCapELE;
135
136 if (!memcmp(CapIE, EWC11NHTCap, sizeof(EWC11NHTCap))) {
137 //EWC IE
138 IEEE80211_DEBUG(IEEE80211_DL_HT, "EWC IE in %s()\n", __func__);
139 pCapELE = (PHT_CAPABILITY_ELE)(&CapIE[4]);
140 } else {
141 pCapELE = (PHT_CAPABILITY_ELE)(&CapIE[0]);
142 }
143 IEEE80211_DEBUG(IEEE80211_DL_HT, "<Log HT Capability>. Called by %s\n", TitleString);
144
145 IEEE80211_DEBUG(IEEE80211_DL_HT, "\tSupported Channel Width = %s\n", (pCapELE->ChlWidth) ? "20MHz" : "20/40MHz");
146 IEEE80211_DEBUG(IEEE80211_DL_HT, "\tSupport Short GI for 20M = %s\n", (pCapELE->ShortGI20Mhz) ? "YES" : "NO");
147 IEEE80211_DEBUG(IEEE80211_DL_HT, "\tSupport Short GI for 40M = %s\n", (pCapELE->ShortGI40Mhz) ? "YES" : "NO");
148 IEEE80211_DEBUG(IEEE80211_DL_HT, "\tSupport TX STBC = %s\n", (pCapELE->TxSTBC) ? "YES" : "NO");
149 IEEE80211_DEBUG(IEEE80211_DL_HT, "\tMax AMSDU Size = %s\n", (pCapELE->MaxAMSDUSize) ? "3839" : "7935");
150 IEEE80211_DEBUG(IEEE80211_DL_HT, "\tSupport CCK in 20/40 mode = %s\n", (pCapELE->DssCCk) ? "YES" : "NO");
151 IEEE80211_DEBUG(IEEE80211_DL_HT, "\tMax AMPDU Factor = %d\n", pCapELE->MaxRxAMPDUFactor);
152 IEEE80211_DEBUG(IEEE80211_DL_HT, "\tMPDU Density = %d\n", pCapELE->MPDUDensity);
153 IEEE80211_DEBUG(IEEE80211_DL_HT, "\tMCS Rate Set = [%x][%x][%x][%x][%x]\n", pCapELE->MCS[0],\
154 pCapELE->MCS[1], pCapELE->MCS[2], pCapELE->MCS[3], pCapELE->MCS[4]);
155 }
156
157 /*
158 *function: This function print out each field on HT Information
159 * IE mainly from (Beacon/ProbeRsp)
160 * input: u8* InfoIE //Capability IE to be printed out
161 * u8* TitleString //mainly print out caller function
162 * output: none
163 * return: none
164 * notice: Driver should not print out this message by default.
165 */
HTDebugHTInfo(u8 * InfoIE,u8 * TitleString)166 void HTDebugHTInfo(u8 *InfoIE, u8 *TitleString)
167 {
168 static u8 EWC11NHTInfo[] = {0x00, 0x90, 0x4c, 0x34}; // For 11n EWC definition, 2007.07.17, by Emily
169 PHT_INFORMATION_ELE pHTInfoEle;
170
171 if (!memcmp(InfoIE, EWC11NHTInfo, sizeof(EWC11NHTInfo))) {
172 // Not EWC IE
173 IEEE80211_DEBUG(IEEE80211_DL_HT, "EWC IE in %s()\n", __func__);
174 pHTInfoEle = (PHT_INFORMATION_ELE)(&InfoIE[4]);
175 } else {
176 pHTInfoEle = (PHT_INFORMATION_ELE)(&InfoIE[0]);
177 }
178
179 IEEE80211_DEBUG(IEEE80211_DL_HT, "<Log HT Information Element>. Called by %s\n", TitleString);
180
181 IEEE80211_DEBUG(IEEE80211_DL_HT, "\tPrimary channel = %d\n", pHTInfoEle->ControlChl);
182 IEEE80211_DEBUG(IEEE80211_DL_HT, "\tSecondary channel =");
183 switch (pHTInfoEle->ExtChlOffset) {
184 case 0:
185 IEEE80211_DEBUG(IEEE80211_DL_HT, "Not Present\n");
186 break;
187 case 1:
188 IEEE80211_DEBUG(IEEE80211_DL_HT, "Upper channel\n");
189 break;
190 case 2:
191 IEEE80211_DEBUG(IEEE80211_DL_HT, "Reserved. Eooro!!!\n");
192 break;
193 case 3:
194 IEEE80211_DEBUG(IEEE80211_DL_HT, "Lower Channel\n");
195 break;
196 }
197 IEEE80211_DEBUG(IEEE80211_DL_HT, "\tRecommended channel width = %s\n", (pHTInfoEle->RecommemdedTxWidth) ? "20Mhz" : "40Mhz");
198
199 IEEE80211_DEBUG(IEEE80211_DL_HT, "\tOperation mode for protection = ");
200 switch (pHTInfoEle->OptMode) {
201 case 0:
202 IEEE80211_DEBUG(IEEE80211_DL_HT, "No Protection\n");
203 break;
204 case 1:
205 IEEE80211_DEBUG(IEEE80211_DL_HT, "HT non-member protection mode\n");
206 break;
207 case 2:
208 IEEE80211_DEBUG(IEEE80211_DL_HT, "Suggest to open protection\n");
209 break;
210 case 3:
211 IEEE80211_DEBUG(IEEE80211_DL_HT, "HT mixed mode\n");
212 break;
213 }
214
215 IEEE80211_DEBUG(IEEE80211_DL_HT, "\tBasic MCS Rate Set = [%x][%x][%x][%x][%x]\n", pHTInfoEle->BasicMSC[0],\
216 pHTInfoEle->BasicMSC[1], pHTInfoEle->BasicMSC[2], pHTInfoEle->BasicMSC[3], pHTInfoEle->BasicMSC[4]);
217 }
218
219 /*
220 * Return: true if station in half n mode and AP supports 40 bw
221 */
IsHTHalfNmode40Bandwidth(struct ieee80211_device * ieee)222 static bool IsHTHalfNmode40Bandwidth(struct ieee80211_device *ieee)
223 {
224 bool retValue = false;
225 PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo;
226
227 if (!pHTInfo->bCurrentHTSupport) // wireless is n mode
228 retValue = false;
229 else if (!pHTInfo->bRegBW40MHz) // station supports 40 bw
230 retValue = false;
231 else if (!ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev)) // station in half n mode
232 retValue = false;
233 else if (((PHT_CAPABILITY_ELE)(pHTInfo->PeerHTCapBuf))->ChlWidth) // ap support 40 bw
234 retValue = true;
235 else
236 retValue = false;
237
238 return retValue;
239 }
240
IsHTHalfNmodeSGI(struct ieee80211_device * ieee,bool is40MHz)241 static bool IsHTHalfNmodeSGI(struct ieee80211_device *ieee, bool is40MHz)
242 {
243 bool retValue = false;
244 PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo;
245
246 if (!pHTInfo->bCurrentHTSupport) // wireless is n mode
247 retValue = false;
248 else if (!ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev)) // station in half n mode
249 retValue = false;
250 else if (is40MHz) { // ap support 40 bw
251 if (((PHT_CAPABILITY_ELE)(pHTInfo->PeerHTCapBuf))->ShortGI40Mhz) // ap support 40 bw short GI
252 retValue = true;
253 else
254 retValue = false;
255 } else {
256 if (((PHT_CAPABILITY_ELE)(pHTInfo->PeerHTCapBuf))->ShortGI20Mhz) // ap support 40 bw short GI
257 retValue = true;
258 else
259 retValue = false;
260 }
261
262 return retValue;
263 }
264
HTHalfMcsToDataRate(struct ieee80211_device * ieee,u8 nMcsRate)265 u16 HTHalfMcsToDataRate(struct ieee80211_device *ieee, u8 nMcsRate)
266 {
267 u8 is40MHz;
268 u8 isShortGI;
269
270 is40MHz = (IsHTHalfNmode40Bandwidth(ieee)) ? 1 : 0;
271 isShortGI = (IsHTHalfNmodeSGI(ieee, is40MHz)) ? 1 : 0;
272
273 return MCS_DATA_RATE[is40MHz][isShortGI][(nMcsRate & 0x7f)];
274 }
275
HTMcsToDataRate(struct ieee80211_device * ieee,u8 nMcsRate)276 u16 HTMcsToDataRate(struct ieee80211_device *ieee, u8 nMcsRate)
277 {
278 PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo;
279
280 u8 is40MHz = (pHTInfo->bCurBW40MHz) ? 1 : 0;
281 u8 isShortGI = (pHTInfo->bCurBW40MHz) ?
282 ((pHTInfo->bCurShortGI40MHz) ? 1 : 0) :
283 ((pHTInfo->bCurShortGI20MHz) ? 1 : 0);
284 return MCS_DATA_RATE[is40MHz][isShortGI][(nMcsRate & 0x7f)];
285 }
286
287 /*
288 *function: This function returns current datarate.
289 * input: struct ieee80211_device* ieee
290 * u8 nDataRate
291 * output: none
292 * return: tx rate
293 * notice: quite unsure about how to use this function //wb
294 */
TxCountToDataRate(struct ieee80211_device * ieee,u8 nDataRate)295 u16 TxCountToDataRate(struct ieee80211_device *ieee, u8 nDataRate)
296 {
297 //PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo;
298 u16 CCKOFDMRate[12] = {0x02, 0x04, 0x0b, 0x16, 0x0c, 0x12, 0x18, 0x24, 0x30, 0x48, 0x60, 0x6c};
299 u8 is40MHz = 0;
300 u8 isShortGI = 0;
301
302 if (nDataRate < 12) {
303 return CCKOFDMRate[nDataRate];
304 } else {
305 if (nDataRate >= 0x10 && nDataRate <= 0x1f) { //if(nDataRate > 11 && nDataRate < 28 )
306 is40MHz = 0;
307 isShortGI = 0;
308
309 // nDataRate = nDataRate - 12;
310 } else if (nDataRate >= 0x20 && nDataRate <= 0x2f) { //(27, 44)
311 is40MHz = 1;
312 isShortGI = 0;
313
314 //nDataRate = nDataRate - 28;
315 } else if (nDataRate >= 0x30 && nDataRate <= 0x3f) { //(43, 60)
316 is40MHz = 0;
317 isShortGI = 1;
318
319 //nDataRate = nDataRate - 44;
320 } else if (nDataRate >= 0x40 && nDataRate <= 0x4f) { //(59, 76)
321 is40MHz = 1;
322 isShortGI = 1;
323
324 //nDataRate = nDataRate - 60;
325 }
326 return MCS_DATA_RATE[is40MHz][isShortGI][nDataRate & 0xf];
327 }
328 }
329
IsHTHalfNmodeAPs(struct ieee80211_device * ieee)330 bool IsHTHalfNmodeAPs(struct ieee80211_device *ieee)
331 {
332 bool retValue = false;
333 struct ieee80211_network *net = &ieee->current_network;
334
335 if ((memcmp(net->bssid, BELKINF5D8233V1_RALINK, 3) == 0) ||
336 (memcmp(net->bssid, BELKINF5D82334V3_RALINK, 3) == 0) ||
337 (memcmp(net->bssid, PCI_RALINK, 3) == 0) ||
338 (memcmp(net->bssid, EDIMAX_RALINK, 3) == 0) ||
339 (memcmp(net->bssid, AIRLINK_RALINK, 3) == 0) ||
340 (net->ralink_cap_exist))
341 retValue = true;
342 else if ((memcmp(net->bssid, UNKNOWN_BORADCOM, 3) == 0) ||
343 (memcmp(net->bssid, LINKSYSWRT330_LINKSYSWRT300_BROADCOM, 3) == 0) ||
344 (memcmp(net->bssid, LINKSYSWRT350_LINKSYSWRT150_BROADCOM, 3) == 0) ||
345 (memcmp(net->bssid, NETGEAR834Bv2_BROADCOM, 3) == 0) ||
346 (net->broadcom_cap_exist))
347 retValue = true;
348 else if (net->bssht.bdRT2RTAggregation)
349 retValue = true;
350 else
351 retValue = false;
352
353 return retValue;
354 }
355
356 /*
357 *function: This function returns peer IOT.
358 * input: struct ieee80211_device* ieee
359 * output: none
360 * return:
361 * notice:
362 */
HTIOTPeerDetermine(struct ieee80211_device * ieee)363 static void HTIOTPeerDetermine(struct ieee80211_device *ieee)
364 {
365 PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo;
366 struct ieee80211_network *net = &ieee->current_network;
367
368 if (net->bssht.bdRT2RTAggregation)
369 pHTInfo->IOTPeer = HT_IOT_PEER_REALTEK;
370 else if (net->broadcom_cap_exist)
371 pHTInfo->IOTPeer = HT_IOT_PEER_BROADCOM;
372 else if ((memcmp(net->bssid, UNKNOWN_BORADCOM, 3) == 0) ||
373 (memcmp(net->bssid, LINKSYSWRT330_LINKSYSWRT300_BROADCOM, 3) == 0) ||
374 (memcmp(net->bssid, LINKSYSWRT350_LINKSYSWRT150_BROADCOM, 3) == 0) ||
375 (memcmp(net->bssid, NETGEAR834Bv2_BROADCOM, 3) == 0))
376 pHTInfo->IOTPeer = HT_IOT_PEER_BROADCOM;
377 else if ((memcmp(net->bssid, BELKINF5D8233V1_RALINK, 3) == 0) ||
378 (memcmp(net->bssid, BELKINF5D82334V3_RALINK, 3) == 0) ||
379 (memcmp(net->bssid, PCI_RALINK, 3) == 0) ||
380 (memcmp(net->bssid, EDIMAX_RALINK, 3) == 0) ||
381 (memcmp(net->bssid, AIRLINK_RALINK, 3) == 0) ||
382 net->ralink_cap_exist)
383 pHTInfo->IOTPeer = HT_IOT_PEER_RALINK;
384 else if (net->atheros_cap_exist)
385 pHTInfo->IOTPeer = HT_IOT_PEER_ATHEROS;
386 else if (memcmp(net->bssid, CISCO_BROADCOM, 3) == 0)
387 pHTInfo->IOTPeer = HT_IOT_PEER_CISCO;
388 else
389 pHTInfo->IOTPeer = HT_IOT_PEER_UNKNOWN;
390
391 IEEE80211_DEBUG(IEEE80211_DL_IOT, "Joseph debug!! IOTPEER: %x\n", pHTInfo->IOTPeer);
392 }
393
394 /*
395 *function: Check whether driver should declare received rate up to MCS13
396 * only since some chipset is not good at receiving MCS14~15 frame
397 * from some AP.
398 * input: struct ieee80211_device* ieee
399 * u8 * PeerMacAddr
400 * output: none
401 * return: return 1 if driver should declare MCS13 only(otherwise return 0)
402 */
HTIOTActIsDisableMCS14(struct ieee80211_device * ieee,u8 * PeerMacAddr)403 static u8 HTIOTActIsDisableMCS14(struct ieee80211_device *ieee, u8 *PeerMacAddr)
404 {
405 return 0;
406 }
407
408 /*
409 * Function: HTIOTActIsDisableMCS15
410 *
411 * Overview: Check whether driver should declare capability of receiving
412 * MCS15
413 *
414 * Input:
415 * PADAPTER Adapter,
416 *
417 * Output: None
418 * Return: true if driver should disable MCS15
419 * 2008.04.15 Emily
420 */
HTIOTActIsDisableMCS15(struct ieee80211_device * ieee)421 static bool HTIOTActIsDisableMCS15(struct ieee80211_device *ieee)
422 {
423 bool retValue = false;
424
425 #ifdef TODO
426 // Apply for 819u only
427 #if (HAL_CODE_BASE == RTL8192)
428
429 #if (DEV_BUS_TYPE == USB_INTERFACE)
430 // Alway disable MCS15 by Jerry Chang's request.by Emily, 2008.04.15
431 retValue = true;
432 #elif (DEV_BUS_TYPE == PCI_INTERFACE)
433 // Enable MCS15 if the peer is Cisco AP. by Emily, 2008.05.12
434 // if(pBssDesc->bCiscoCapExist)
435 // retValue = false;
436 // else
437 retValue = false;
438 #endif
439 #endif
440 #endif
441 // Jerry Chang suggest that 8190 1x2 does not need to disable MCS15
442
443 return retValue;
444 }
445
446 /*
447 * Function: HTIOTActIsDisableMCSTwoSpatialStream
448 *
449 * Overview: Check whether driver should declare capability of receiving
450 * All 2 ss packets
451 *
452 * Input:
453 * PADAPTER Adapter,
454 *
455 * Output: None
456 * Return: true if driver should disable all two spatial stream packet
457 * 2008.04.21 Emily
458 */
HTIOTActIsDisableMCSTwoSpatialStream(struct ieee80211_device * ieee,u8 * PeerMacAddr)459 static bool HTIOTActIsDisableMCSTwoSpatialStream(struct ieee80211_device *ieee,
460 u8 *PeerMacAddr)
461 {
462 #ifdef TODO
463 // Apply for 819u only
464 #endif
465 return false;
466 }
467
468 /*
469 *function: Check whether driver should disable EDCA turbo mode
470 * input: struct ieee80211_device* ieee
471 * u8* PeerMacAddr
472 * output: none
473 * return: return 1 if driver should disable EDCA turbo mode
474 * (otherwise return 0)
475 */
HTIOTActIsDisableEDCATurbo(struct ieee80211_device * ieee,u8 * PeerMacAddr)476 static u8 HTIOTActIsDisableEDCATurbo(struct ieee80211_device *ieee,
477 u8 *PeerMacAddr)
478 { /* default enable EDCA Turbo mode. */
479 return false;
480 }
481
482 /*
483 *function: Check whether we need to use OFDM to sned MGNT frame for
484 * broadcom AP
485 * input: struct ieee80211_network *network //current network we live
486 * output: none
487 * return: return 1 if true
488 */
HTIOTActIsMgntUseCCK6M(struct ieee80211_network * network)489 static u8 HTIOTActIsMgntUseCCK6M(struct ieee80211_network *network)
490 {
491 u8 retValue = 0;
492
493 // 2008/01/25 MH Judeg if we need to use OFDM to sned MGNT frame for broadcom AP.
494 // 2008/01/28 MH We must prevent that we select null bssid to link.
495
496 if (network->broadcom_cap_exist)
497 retValue = 1;
498
499 return retValue;
500 }
501
HTIOTActIsCCDFsync(u8 * PeerMacAddr)502 static u8 HTIOTActIsCCDFsync(u8 *PeerMacAddr)
503 {
504 u8 retValue = 0;
505
506 if ((memcmp(PeerMacAddr, UNKNOWN_BORADCOM, 3) == 0) ||
507 (memcmp(PeerMacAddr, LINKSYSWRT330_LINKSYSWRT300_BROADCOM, 3) == 0) ||
508 (memcmp(PeerMacAddr, LINKSYSWRT350_LINKSYSWRT150_BROADCOM, 3) == 0))
509 retValue = 1;
510
511 return retValue;
512 }
513
HTResetIOTSetting(PRT_HIGH_THROUGHPUT pHTInfo)514 void HTResetIOTSetting(PRT_HIGH_THROUGHPUT pHTInfo)
515 {
516 pHTInfo->IOTAction = 0;
517 pHTInfo->IOTPeer = HT_IOT_PEER_UNKNOWN;
518 }
519
520 /*
521 *function: Construct Capablility Element in Beacon... if HTEnable is turned on
522 * input: struct ieee80211_device* ieee
523 * u8* posHTCap //pointer to store Capability Ele
524 * u8* len //store length of CE
525 * u8 IsEncrypt //whether encrypt, needed further
526 * output: none
527 * return: none
528 * notice: posHTCap can't be null and should be initialized before.
529 */
HTConstructCapabilityElement(struct ieee80211_device * ieee,u8 * posHTCap,u8 * len,u8 IsEncrypt)530 void HTConstructCapabilityElement(struct ieee80211_device *ieee, u8 *posHTCap, u8 *len, u8 IsEncrypt)
531 {
532 PRT_HIGH_THROUGHPUT pHT = ieee->pHTInfo;
533 PHT_CAPABILITY_ELE pCapELE = NULL;
534 //u8 bIsDeclareMCS13;
535
536 if (!posHTCap || !pHT) {
537 IEEE80211_DEBUG(IEEE80211_DL_ERR,
538 "posHTCap or pHTInfo can't be null in %s\n",
539 __func__);
540 return;
541 }
542 memset(posHTCap, 0, *len);
543 if (pHT->ePeerHTSpecVer == HT_SPEC_VER_EWC) {
544 u8 EWC11NHTCap[] = {0x00, 0x90, 0x4c, 0x33}; // For 11n EWC definition, 2007.07.17, by Emily
545
546 memcpy(posHTCap, EWC11NHTCap, sizeof(EWC11NHTCap));
547 pCapELE = (PHT_CAPABILITY_ELE)&posHTCap[4];
548 } else {
549 pCapELE = (PHT_CAPABILITY_ELE)posHTCap;
550 }
551
552 //HT capability info
553 pCapELE->AdvCoding = 0; // This feature is not supported now!!
554 if (ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev))
555 pCapELE->ChlWidth = 0;
556 else
557 pCapELE->ChlWidth = (pHT->bRegBW40MHz ? 1 : 0);
558
559 // pCapELE->ChlWidth = (pHT->bRegBW40MHz?1:0);
560 pCapELE->MimoPwrSave = pHT->SelfMimoPs;
561 pCapELE->GreenField = 0; // This feature is not supported now!!
562 pCapELE->ShortGI20Mhz = 1; // We can receive Short GI!!
563 pCapELE->ShortGI40Mhz = 1; // We can receive Short GI!!
564 //DbgPrint("TX HT cap/info ele BW=%d SG20=%d SG40=%d\n\r",
565 //pCapELE->ChlWidth, pCapELE->ShortGI20Mhz, pCapELE->ShortGI40Mhz);
566 pCapELE->TxSTBC = 1;
567 pCapELE->RxSTBC = 0;
568 pCapELE->DelayBA = 0; // Do not support now!!
569 pCapELE->MaxAMSDUSize = (MAX_RECEIVE_BUFFER_SIZE >= 7935) ? 1 : 0;
570 pCapELE->DssCCk = ((pHT->bRegBW40MHz) ? (pHT->bRegSuppCCK ? 1 : 0) : 0);
571 pCapELE->PSMP = 0; // Do not support now!!
572 pCapELE->LSigTxopProtect = 0; // Do not support now!!
573
574 /*
575 * MAC HT parameters info
576 * TODO: Nedd to take care of this part
577 */
578 IEEE80211_DEBUG(IEEE80211_DL_HT, "TX HT cap/info ele BW=%d MaxAMSDUSize:%d DssCCk:%d\n", pCapELE->ChlWidth, pCapELE->MaxAMSDUSize, pCapELE->DssCCk);
579
580 if (IsEncrypt) {
581 pCapELE->MPDUDensity = 7; // 8us
582 pCapELE->MaxRxAMPDUFactor = 2; // 2 is for 32 K and 3 is 64K
583 } else {
584 pCapELE->MaxRxAMPDUFactor = 3; // 2 is for 32 K and 3 is 64K
585 pCapELE->MPDUDensity = 0; // no density
586 }
587
588 //Supported MCS set
589 memcpy(pCapELE->MCS, ieee->Regdot11HTOperationalRateSet, 16);
590 if (pHT->IOTAction & HT_IOT_ACT_DISABLE_MCS15)
591 pCapELE->MCS[1] &= 0x7f;
592
593 if (pHT->IOTAction & HT_IOT_ACT_DISABLE_MCS14)
594 pCapELE->MCS[1] &= 0xbf;
595
596 if (pHT->IOTAction & HT_IOT_ACT_DISABLE_ALL_2SS)
597 pCapELE->MCS[1] &= 0x00;
598
599 /*
600 * 2008.06.12
601 * For RTL819X, if pairwisekey = wep/tkip, ap is ralink, we support only MCS0~7.
602 */
603 if (ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev)) {
604 int i;
605
606 for (i = 1; i < 16; i++)
607 pCapELE->MCS[i] = 0;
608 }
609
610 //Extended HT Capability Info
611 memset(&pCapELE->ExtHTCapInfo, 0, 2);
612
613 //TXBF Capabilities
614 memset(pCapELE->TxBFCap, 0, 4);
615
616 //Antenna Selection Capabilities
617 pCapELE->ASCap = 0;
618 //add 2 to give space for element ID and len when construct frames
619 if (pHT->ePeerHTSpecVer == HT_SPEC_VER_EWC)
620 *len = 30 + 2;
621 else
622 *len = 26 + 2;
623
624 // IEEE80211_DEBUG_DATA(IEEE80211_DL_DATA | IEEE80211_DL_HT, posHTCap, *len -2);
625
626 /*
627 * Print each field in detail. Driver should not print out this message
628 * by default
629 */
630 // HTDebugHTCapability(posHTCap, (u8*)"HTConstructCapability()");
631 }
632
633 /*
634 *function: Construct Information Element in Beacon... if HTEnable is turned on
635 * input: struct ieee80211_device* ieee
636 * u8* posHTCap //pointer to store Information Ele
637 * u8* len //store len of
638 * u8 IsEncrypt //whether encrypt, needed further
639 * output: none
640 * return: none
641 * notice: posHTCap can't be null and be initialized before.
642 * Only AP and IBSS sta should do this
643 */
HTConstructInfoElement(struct ieee80211_device * ieee,u8 * posHTInfo,u8 * len,u8 IsEncrypt)644 void HTConstructInfoElement(struct ieee80211_device *ieee, u8 *posHTInfo, u8 *len, u8 IsEncrypt)
645 {
646 PRT_HIGH_THROUGHPUT pHT = ieee->pHTInfo;
647 PHT_INFORMATION_ELE pHTInfoEle = (PHT_INFORMATION_ELE)posHTInfo;
648
649 if (!posHTInfo || !pHTInfoEle) {
650 IEEE80211_DEBUG(IEEE80211_DL_ERR,
651 "posHTInfo or pHTInfoEle can't be null in %s\n",
652 __func__);
653 return;
654 }
655
656 memset(posHTInfo, 0, *len);
657 if ((ieee->iw_mode == IW_MODE_ADHOC) || (ieee->iw_mode == IW_MODE_MASTER)) { //ap mode is not currently supported
658 pHTInfoEle->ControlChl = ieee->current_network.channel;
659 pHTInfoEle->ExtChlOffset = ((!pHT->bRegBW40MHz) ? HT_EXTCHNL_OFFSET_NO_EXT :
660 (ieee->current_network.channel <= 6) ?
661 HT_EXTCHNL_OFFSET_UPPER : HT_EXTCHNL_OFFSET_LOWER);
662 pHTInfoEle->RecommemdedTxWidth = pHT->bRegBW40MHz;
663 pHTInfoEle->RIFS = 0;
664 pHTInfoEle->PSMPAccessOnly = 0;
665 pHTInfoEle->SrvIntGranularity = 0;
666 pHTInfoEle->OptMode = pHT->CurrentOpMode;
667 pHTInfoEle->NonGFDevPresent = 0;
668 pHTInfoEle->DualBeacon = 0;
669 pHTInfoEle->SecondaryBeacon = 0;
670 pHTInfoEle->LSigTxopProtectFull = 0;
671 pHTInfoEle->PcoActive = 0;
672 pHTInfoEle->PcoPhase = 0;
673
674 memset(pHTInfoEle->BasicMSC, 0, 16);
675
676 *len = 22 + 2; //same above
677 } else {
678 //STA should not generate High Throughput Information Element
679 *len = 0;
680 }
681 //IEEE80211_DEBUG_DATA(IEEE80211_DL_DATA | IEEE80211_DL_HT, posHTInfo, *len - 2);
682 //HTDebugHTInfo(posHTInfo, "HTConstructInforElement");
683 }
684
685 /*
686 * According to experiment, Realtek AP to STA (based on rtl8190) may achieve
687 * best performance if both STA and AP set limitation of aggregation size to
688 * 32K, that is, set AMPDU density to 2 (Ref: IEEE 11n specification).
689 * However, if Realtek STA associates to other AP, STA should set limitation of
690 * aggregation size to 8K, otherwise, performance of traffic stream from STA to
691 * AP will be much less than the traffic stream from AP to STA if both of the
692 * stream runs concurrently at the same time.
693 *
694 * Frame Format
695 * Element ID Length OUI Type1 Reserved
696 * 1 byte 1 byte 3 bytes 1 byte 1 byte
697 *
698 * OUI = 0x00, 0xe0, 0x4c,
699 * Type = 0x02
700 * Reserved = 0x00
701 *
702 * 2007.8.21 by Emily
703 */
704 /*
705 *function: Construct Information Element in Beacon... in RT2RT condition
706 * input: struct ieee80211_device* ieee
707 * u8* posRT2RTAgg //pointer to store Information Ele
708 * u8* len //store len
709 * output: none
710 * return: none
711 * notice:
712 */
HTConstructRT2RTAggElement(struct ieee80211_device * ieee,u8 * posRT2RTAgg,u8 * len)713 void HTConstructRT2RTAggElement(struct ieee80211_device *ieee, u8 *posRT2RTAgg, u8 *len)
714 {
715 if (!posRT2RTAgg) {
716 IEEE80211_DEBUG(IEEE80211_DL_ERR,
717 "posRT2RTAgg can't be null in %s\n",
718 __func__);
719 return;
720 }
721 memset(posRT2RTAgg, 0, *len);
722 *posRT2RTAgg++ = 0x00;
723 *posRT2RTAgg++ = 0xe0;
724 *posRT2RTAgg++ = 0x4c;
725 *posRT2RTAgg++ = 0x02;
726 *posRT2RTAgg++ = 0x01;
727 *posRT2RTAgg = 0x10;//*posRT2RTAgg = 0x02;
728
729 if (ieee->bSupportRemoteWakeUp)
730 *posRT2RTAgg |= 0x08;//RT_HT_CAP_USE_WOW;
731
732 *len = 6 + 2;
733 return;
734 #ifdef TODO
735 #if (HAL_CODE_BASE == RTL8192 && DEV_BUS_TYPE == USB_INTERFACE)
736 /*
737 //Emily. If it is required to Ask Realtek AP to send AMPDU during AES mode, enable this
738 section of code.
739 if(IS_UNDER_11N_AES_MODE(Adapter))
740 {
741 posRT2RTAgg->octet[5] |= RT_HT_CAP_USE_AMPDU;
742 }else
743 {
744 posRT2RTAgg->octet[5] &= 0xfb;
745 }
746 */
747 #else
748 // Do Nothing
749 #endif
750
751 posRT2RTAgg->Length = 6;
752 #endif
753 }
754
755 /*
756 *function: Pick the right Rate Adaptive table to use
757 * input: struct ieee80211_device* ieee
758 * u8* pOperateMCS //A pointer to MCS rate bitmap
759 * return: always we return true
760 * notice:
761 */
HT_PickMCSRate(struct ieee80211_device * ieee,u8 * pOperateMCS)762 static u8 HT_PickMCSRate(struct ieee80211_device *ieee, u8 *pOperateMCS)
763 {
764 if (!pOperateMCS) {
765 IEEE80211_DEBUG(IEEE80211_DL_ERR,
766 "pOperateMCS can't be null in %s\n",
767 __func__);
768 return false;
769 }
770
771 switch (ieee->mode) {
772 case IEEE_A:
773 case IEEE_B:
774 case IEEE_G:
775 //legacy rate routine handled at selectedrate
776
777 //no MCS rate
778 memset(pOperateMCS, 0, 16);
779 break;
780
781 case IEEE_N_24G: //assume CCK rate ok
782 case IEEE_N_5G:
783 // Legacy part we only use 6, 5.5,2,1 for N_24G and 6 for N_5G.
784 // Legacy part shall be handled at SelectRateSet().
785
786 //HT part
787 // TODO: may be different if we have different number of antenna
788 pOperateMCS[0] &= RATE_ADPT_1SS_MASK; //support MCS 0~7
789 pOperateMCS[1] &= RATE_ADPT_2SS_MASK;
790 pOperateMCS[3] &= RATE_ADPT_MCS32_MASK;
791 break;
792
793 //should never reach here
794 default:
795 break;
796 }
797
798 return true;
799 }
800
801 /*
802 * Description:
803 * This function will get the highest speed rate in input MCS set.
804 *
805 * /param Adapter Pionter to Adapter entity
806 * pMCSRateSet Pointer to MCS rate bitmap
807 * pMCSFilter Pointer to MCS rate filter
808 *
809 * /return Highest MCS rate included in pMCSRateSet and filtered by pMCSFilter.
810 *
811 */
812 /*
813 *function: This function will get the highest speed rate in input MCS set.
814 * input: struct ieee80211_device* ieee
815 * u8* pMCSRateSet //Pointer to MCS rate bitmap
816 * u8* pMCSFilter //Pointer to MCS rate filter
817 * return: Highest MCS rate included in pMCSRateSet and filtered by pMCSFilter
818 * notice:
819 */
HTGetHighestMCSRate(struct ieee80211_device * ieee,u8 * pMCSRateSet,u8 * pMCSFilter)820 u8 HTGetHighestMCSRate(struct ieee80211_device *ieee, u8 *pMCSRateSet, u8 *pMCSFilter)
821 {
822 u8 i, j;
823 u8 bitMap;
824 u8 mcsRate = 0;
825 u8 availableMcsRate[16];
826
827 if (!pMCSRateSet || !pMCSFilter) {
828 IEEE80211_DEBUG(IEEE80211_DL_ERR,
829 "pMCSRateSet or pMCSFilter can't be null in %s\n",
830 __func__);
831 return false;
832 }
833 for (i = 0; i < 16; i++)
834 availableMcsRate[i] = pMCSRateSet[i] & pMCSFilter[i];
835
836 for (i = 0; i < 16; i++) {
837 if (availableMcsRate[i] != 0)
838 break;
839 }
840 if (i == 16)
841 return false;
842
843 for (i = 0; i < 16; i++) {
844 if (availableMcsRate[i] != 0) {
845 bitMap = availableMcsRate[i];
846 for (j = 0; j < 8; j++) {
847 if ((bitMap % 2) != 0) {
848 if (HTMcsToDataRate(ieee, (8 * i + j)) > HTMcsToDataRate(ieee, mcsRate))
849 mcsRate = (8 * i + j);
850 }
851 bitMap >>= 1;
852 }
853 }
854 }
855 return (mcsRate | 0x80);
856 }
857
858 /*
859 * 1.Filter our operation rate set with AP's rate set
860 * 2.shall reference channel bandwidth, STBC, Antenna number
861 * 3.generate rate adative table for firmware
862 * David 20060906
863 *
864 * \pHTSupportedCap: the connected STA's supported rate Capability element
865 */
HTFilterMCSRate(struct ieee80211_device * ieee,u8 * pSupportMCS,u8 * pOperateMCS)866 static u8 HTFilterMCSRate(struct ieee80211_device *ieee, u8 *pSupportMCS,
867 u8 *pOperateMCS)
868 {
869 u8 i = 0;
870
871 // filter out operational rate set not supported by AP, the length of it is 16
872 for (i = 0; i <= 15; i++)
873 pOperateMCS[i] = ieee->Regdot11HTOperationalRateSet[i] & pSupportMCS[i];
874
875 // TODO: adjust our operational rate set according to our channel bandwidth, STBC and Antenna number
876 /*
877 * TODO: fill suggested rate adaptive rate index and give firmware info
878 * using Tx command packet we also shall suggested the first start rate
879 * set according to our signal strength
880 */
881 HT_PickMCSRate(ieee, pOperateMCS);
882
883 // For RTL819X, if pairwisekey = wep/tkip, we support only MCS0~7.
884 if (ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev))
885 pOperateMCS[1] = 0;
886
887 /*
888 * For RTL819X, we support only MCS0~15.
889 * And also, we do not know how to use MCS32 now.
890 */
891 for (i = 2; i <= 15; i++)
892 pOperateMCS[i] = 0;
893
894 return true;
895 }
896
897 void HTSetConnectBwMode(struct ieee80211_device *ieee, enum ht_channel_width Bandwidth, enum ht_extension_chan_offset Offset);
HTOnAssocRsp(struct ieee80211_device * ieee)898 void HTOnAssocRsp(struct ieee80211_device *ieee)
899 {
900 PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo;
901 PHT_CAPABILITY_ELE pPeerHTCap = NULL;
902 PHT_INFORMATION_ELE pPeerHTInfo = NULL;
903 u16 nMaxAMSDUSize = 0;
904 u8 *pMcsFilter = NULL;
905
906 static u8 EWC11NHTCap[] = {0x00, 0x90, 0x4c, 0x33}; // For 11n EWC definition, 2007.07.17, by Emily
907 static u8 EWC11NHTInfo[] = {0x00, 0x90, 0x4c, 0x34}; // For 11n EWC definition, 2007.07.17, by Emily
908
909 if (!pHTInfo->bCurrentHTSupport) {
910 IEEE80211_DEBUG(IEEE80211_DL_ERR,
911 "<=== %s: HT_DISABLE\n",
912 __func__);
913 return;
914 }
915 IEEE80211_DEBUG(IEEE80211_DL_HT, "===> HTOnAssocRsp_wq(): HT_ENABLE\n");
916 // IEEE80211_DEBUG_DATA(IEEE80211_DL_DATA, pHTInfo->PeerHTCapBuf, sizeof(HT_CAPABILITY_ELE));
917 // IEEE80211_DEBUG_DATA(IEEE80211_DL_DATA, pHTInfo->PeerHTInfoBuf, sizeof(HT_INFORMATION_ELE));
918
919 // HTDebugHTCapability(pHTInfo->PeerHTCapBuf,"HTOnAssocRsp_wq");
920 // HTDebugHTInfo(pHTInfo->PeerHTInfoBuf,"HTOnAssocRsp_wq");
921 //
922 if (!memcmp(pHTInfo->PeerHTCapBuf, EWC11NHTCap, sizeof(EWC11NHTCap)))
923 pPeerHTCap = (PHT_CAPABILITY_ELE)(&pHTInfo->PeerHTCapBuf[4]);
924 else
925 pPeerHTCap = (PHT_CAPABILITY_ELE)(pHTInfo->PeerHTCapBuf);
926
927 if (!memcmp(pHTInfo->PeerHTInfoBuf, EWC11NHTInfo, sizeof(EWC11NHTInfo)))
928 pPeerHTInfo = (PHT_INFORMATION_ELE)(&pHTInfo->PeerHTInfoBuf[4]);
929 else
930 pPeerHTInfo = (PHT_INFORMATION_ELE)(pHTInfo->PeerHTInfoBuf);
931
932 ////////////////////////////////////////////////////////
933 // Configurations:
934 ////////////////////////////////////////////////////////
935 IEEE80211_DEBUG_DATA(IEEE80211_DL_DATA | IEEE80211_DL_HT, pPeerHTCap, sizeof(HT_CAPABILITY_ELE));
936 // IEEE80211_DEBUG_DATA(IEEE80211_DL_DATA|IEEE80211_DL_HT, pPeerHTInfo, sizeof(HT_INFORMATION_ELE));
937 // Config Supported Channel Width setting
938 //
939 HTSetConnectBwMode(ieee, (enum ht_channel_width)(pPeerHTCap->ChlWidth), (enum ht_extension_chan_offset)(pPeerHTInfo->ExtChlOffset));
940
941 pHTInfo->bCurTxBW40MHz = (pPeerHTInfo->RecommemdedTxWidth == 1);
942
943 /*
944 * Update short GI/ long GI setting
945 *
946 * TODO:
947 */
948 pHTInfo->bCurShortGI20MHz = pHTInfo->bRegShortGI20MHz &&
949 (pPeerHTCap->ShortGI20Mhz == 1);
950 pHTInfo->bCurShortGI40MHz = pHTInfo->bRegShortGI40MHz &&
951 (pPeerHTCap->ShortGI40Mhz == 1);
952
953 /*
954 * Config TX STBC setting
955 *
956 * TODO:
957 */
958
959 /*
960 * Config DSSS/CCK mode in 40MHz mode
961 *
962 * TODO:
963 */
964 pHTInfo->bCurSuppCCK = pHTInfo->bRegSuppCCK &&
965 (pPeerHTCap->DssCCk == 1);
966
967 /*
968 * Config and configure A-MSDU setting
969 */
970 pHTInfo->bCurrent_AMSDU_Support = pHTInfo->bAMSDU_Support;
971
972 nMaxAMSDUSize = (pPeerHTCap->MaxAMSDUSize == 0) ? 3839 : 7935;
973
974 if (pHTInfo->nAMSDU_MaxSize > nMaxAMSDUSize)
975 pHTInfo->nCurrent_AMSDU_MaxSize = nMaxAMSDUSize;
976 else
977 pHTInfo->nCurrent_AMSDU_MaxSize = pHTInfo->nAMSDU_MaxSize;
978 /*
979 * Config A-MPDU setting
980 */
981 pHTInfo->bCurrentAMPDUEnable = pHTInfo->bAMPDUEnable;
982
983 /*
984 * <1> Decide AMPDU Factor
985 * By Emily
986 */
987 if (!pHTInfo->bRegRT2RTAggregation) {
988 // Decide AMPDU Factor according to protocol handshake
989 if (pHTInfo->AMPDU_Factor > pPeerHTCap->MaxRxAMPDUFactor)
990 pHTInfo->CurrentAMPDUFactor = pPeerHTCap->MaxRxAMPDUFactor;
991 else
992 pHTInfo->CurrentAMPDUFactor = pHTInfo->AMPDU_Factor;
993 } else {
994 /*
995 * Set MPDU density to 2 to Realtek AP, and set it to 0 for others
996 * Replace MPDU factor declared in original association response frame format. 2007.08.20 by Emily
997 */
998 if (ieee->current_network.bssht.bdRT2RTAggregation) {
999 if (ieee->pairwise_key_type != KEY_TYPE_NA)
1000 // Realtek may set 32k in security mode and 64k for others
1001 pHTInfo->CurrentAMPDUFactor = pPeerHTCap->MaxRxAMPDUFactor;
1002 else
1003 pHTInfo->CurrentAMPDUFactor = HT_AGG_SIZE_64K;
1004 } else {
1005 if (pPeerHTCap->MaxRxAMPDUFactor < HT_AGG_SIZE_32K)
1006 pHTInfo->CurrentAMPDUFactor = pPeerHTCap->MaxRxAMPDUFactor;
1007 else
1008 pHTInfo->CurrentAMPDUFactor = HT_AGG_SIZE_32K;
1009 }
1010 }
1011
1012 /*
1013 * <2> Set AMPDU Minimum MPDU Start Spacing
1014 * 802.11n 3.0 section 9.7d.3
1015 */
1016 if (pHTInfo->MPDU_Density > pPeerHTCap->MPDUDensity)
1017 pHTInfo->CurrentMPDUDensity = pHTInfo->MPDU_Density;
1018 else
1019 pHTInfo->CurrentMPDUDensity = pPeerHTCap->MPDUDensity;
1020 if (ieee->pairwise_key_type != KEY_TYPE_NA)
1021 pHTInfo->CurrentMPDUDensity = 7; // 8us
1022 // Force TX AMSDU
1023
1024 // Lanhsin: mark for tmp to avoid deauth by ap from s3
1025 //if(memcmp(pMgntInfo->Bssid, NETGEAR834Bv2_BROADCOM, 3)==0)
1026 if (0) {
1027 pHTInfo->bCurrentAMPDUEnable = false;
1028 pHTInfo->ForcedAMSDUMode = HT_AGG_FORCE_ENABLE;
1029 pHTInfo->ForcedAMSDUMaxSize = 7935;
1030
1031 pHTInfo->IOTAction |= HT_IOT_ACT_TX_USE_AMSDU_8K;
1032 }
1033
1034 // Rx Reorder Setting
1035 pHTInfo->bCurRxReorderEnable = pHTInfo->bRegRxReorderEnable;
1036
1037 /*
1038 * Filter out unsupported HT rate for this AP
1039 * Update RATR table
1040 * This is only for 8190 ,8192 or later product which using firmware to
1041 * handle rate adaptive mechanism.
1042 */
1043
1044 /*
1045 * Handle Ralink AP bad MCS rate set condition. Joseph.
1046 * This fix the bug of Ralink AP. This may be removed in the future.
1047 */
1048 if (pPeerHTCap->MCS[0] == 0)
1049 pPeerHTCap->MCS[0] = 0xff;
1050
1051 HTFilterMCSRate(ieee, pPeerHTCap->MCS, ieee->dot11HTOperationalRateSet);
1052
1053 /*
1054 * Config MIMO Power Save setting
1055 */
1056 pHTInfo->PeerMimoPs = pPeerHTCap->MimoPwrSave;
1057 if (pHTInfo->PeerMimoPs == MIMO_PS_STATIC)
1058 pMcsFilter = MCS_FILTER_1SS;
1059 else
1060 pMcsFilter = MCS_FILTER_ALL;
1061 //WB add for MCS8 bug
1062 // pMcsFilter = MCS_FILTER_1SS;
1063 ieee->HTHighestOperaRate = HTGetHighestMCSRate(ieee, ieee->dot11HTOperationalRateSet, pMcsFilter);
1064 ieee->HTCurrentOperaRate = ieee->HTHighestOperaRate;
1065
1066 /*
1067 * Config current operation mode.
1068 */
1069 pHTInfo->CurrentOpMode = pPeerHTInfo->OptMode;
1070 }
1071
1072 void HTSetConnectBwModeCallback(struct ieee80211_device *ieee);
1073 /*
1074 *function: initialize HT info(struct PRT_HIGH_THROUGHPUT)
1075 * input: struct ieee80211_device* ieee
1076 * output: none
1077 * return: none
1078 * notice: This function is called when
1079 * * (1) MPInitialization Phase
1080 * * (2) Receiving of Deauthentication from AP
1081 */
1082 // TODO: Should this funciton be called when receiving of Disassociation?
HTInitializeHTInfo(struct ieee80211_device * ieee)1083 void HTInitializeHTInfo(struct ieee80211_device *ieee)
1084 {
1085 PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo;
1086
1087 /*
1088 * These parameters will be reset when receiving deauthentication packet
1089 */
1090 IEEE80211_DEBUG(IEEE80211_DL_HT, "===========>%s()\n", __func__);
1091 pHTInfo->bCurrentHTSupport = false;
1092
1093 // 40MHz channel support
1094 pHTInfo->bCurBW40MHz = false;
1095 pHTInfo->bCurTxBW40MHz = false;
1096
1097 // Short GI support
1098 pHTInfo->bCurShortGI20MHz = false;
1099 pHTInfo->bCurShortGI40MHz = false;
1100 pHTInfo->bForcedShortGI = false;
1101
1102 /*
1103 * CCK rate support
1104 * This flag is set to true to support CCK rate by default.
1105 * It will be affected by "pHTInfo->bRegSuppCCK" and AP capabilities
1106 * only when associate to 11N BSS.
1107 */
1108 pHTInfo->bCurSuppCCK = true;
1109
1110 // AMSDU related
1111 pHTInfo->bCurrent_AMSDU_Support = false;
1112 pHTInfo->nCurrent_AMSDU_MaxSize = pHTInfo->nAMSDU_MaxSize;
1113
1114 // AMPUD related
1115 pHTInfo->CurrentMPDUDensity = pHTInfo->MPDU_Density;
1116 pHTInfo->CurrentAMPDUFactor = pHTInfo->AMPDU_Factor;
1117
1118 // Initialize all of the parameters related to 11n
1119 memset(&pHTInfo->SelfHTCap, 0, sizeof(pHTInfo->SelfHTCap));
1120 memset(&pHTInfo->SelfHTInfo, 0, sizeof(pHTInfo->SelfHTInfo));
1121 memset(&pHTInfo->PeerHTCapBuf, 0, sizeof(pHTInfo->PeerHTCapBuf));
1122 memset(&pHTInfo->PeerHTInfoBuf, 0, sizeof(pHTInfo->PeerHTInfoBuf));
1123
1124 pHTInfo->bSwBwInProgress = false;
1125 pHTInfo->ChnlOp = CHNLOP_NONE;
1126
1127 // Set default IEEE spec for Draft N
1128 pHTInfo->ePeerHTSpecVer = HT_SPEC_VER_IEEE;
1129
1130 // Realtek proprietary aggregation mode
1131 pHTInfo->bCurrentRT2RTAggregation = false;
1132 pHTInfo->bCurrentRT2RTLongSlotTime = false;
1133 pHTInfo->IOTPeer = 0;
1134 pHTInfo->IOTAction = 0;
1135
1136 //MCS rate initialized here
1137 {
1138 u8 *RegHTSuppRateSets = &ieee->RegHTSuppRateSet[0];
1139
1140 RegHTSuppRateSets[0] = 0xFF; //support MCS 0~7
1141 RegHTSuppRateSets[1] = 0xFF; //support MCS 8~15
1142 RegHTSuppRateSets[4] = 0x01; //support MCS 32
1143 }
1144 }
1145
1146 /*
1147 *function: initialize Bss HT structure(struct PBSS_HT)
1148 * input: PBSS_HT pBssHT //to be initialized
1149 * output: none
1150 * return: none
1151 * notice: This function is called when initialize network structure
1152 */
HTInitializeBssDesc(PBSS_HT pBssHT)1153 void HTInitializeBssDesc(PBSS_HT pBssHT)
1154 {
1155 pBssHT->bdSupportHT = false;
1156 memset(pBssHT->bdHTCapBuf, 0, sizeof(pBssHT->bdHTCapBuf));
1157 pBssHT->bdHTCapLen = 0;
1158 memset(pBssHT->bdHTInfoBuf, 0, sizeof(pBssHT->bdHTInfoBuf));
1159 pBssHT->bdHTInfoLen = 0;
1160
1161 pBssHT->bdHTSpecVer = HT_SPEC_VER_IEEE;
1162
1163 pBssHT->bdRT2RTAggregation = false;
1164 pBssHT->bdRT2RTLongSlotTime = false;
1165 }
1166
1167 /*
1168 *function: initialize Bss HT structure(struct PBSS_HT)
1169 * input: struct ieee80211_device *ieee
1170 * struct ieee80211_network *pNetwork //usually current network
1171 * we are live in
1172 * output: none
1173 * return: none
1174 * notice: This function should ONLY be called before association
1175 */
HTResetSelfAndSavePeerSetting(struct ieee80211_device * ieee,struct ieee80211_network * pNetwork)1176 void HTResetSelfAndSavePeerSetting(struct ieee80211_device *ieee, struct ieee80211_network *pNetwork)
1177 {
1178 PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo;
1179 // u16 nMaxAMSDUSize;
1180 // PHT_CAPABILITY_ELE pPeerHTCap = (PHT_CAPABILITY_ELE)pNetwork->bssht.bdHTCapBuf;
1181 // PHT_INFORMATION_ELE pPeerHTInfo = (PHT_INFORMATION_ELE)pNetwork->bssht.bdHTInfoBuf;
1182 // u8* pMcsFilter;
1183 u8 bIOTAction = 0;
1184
1185 //
1186 // Save Peer Setting before Association
1187 //
1188 IEEE80211_DEBUG(IEEE80211_DL_HT, "==============>%s()\n", __func__);
1189 /*unmark bEnableHT flag here is the same reason why unmarked in function ieee80211_softmac_new_net. WB 2008.09.10*/
1190 // if( pHTInfo->bEnableHT && pNetwork->bssht.bdSupportHT)
1191 if (pNetwork->bssht.bdSupportHT) {
1192 pHTInfo->bCurrentHTSupport = true;
1193 pHTInfo->ePeerHTSpecVer = pNetwork->bssht.bdHTSpecVer;
1194
1195 // Save HTCap and HTInfo information Element
1196 if (pNetwork->bssht.bdHTCapLen > 0 && pNetwork->bssht.bdHTCapLen <= sizeof(pHTInfo->PeerHTCapBuf))
1197 memcpy(pHTInfo->PeerHTCapBuf, pNetwork->bssht.bdHTCapBuf, pNetwork->bssht.bdHTCapLen);
1198
1199 if (pNetwork->bssht.bdHTInfoLen > 0 && pNetwork->bssht.bdHTInfoLen <= sizeof(pHTInfo->PeerHTInfoBuf))
1200 memcpy(pHTInfo->PeerHTInfoBuf, pNetwork->bssht.bdHTInfoBuf, pNetwork->bssht.bdHTInfoLen);
1201
1202 // Check whether RT to RT aggregation mode is enabled
1203 if (pHTInfo->bRegRT2RTAggregation) {
1204 pHTInfo->bCurrentRT2RTAggregation = pNetwork->bssht.bdRT2RTAggregation;
1205 pHTInfo->bCurrentRT2RTLongSlotTime = pNetwork->bssht.bdRT2RTLongSlotTime;
1206 } else {
1207 pHTInfo->bCurrentRT2RTAggregation = false;
1208 pHTInfo->bCurrentRT2RTLongSlotTime = false;
1209 }
1210
1211 // Determine the IOT Peer Vendor.
1212 HTIOTPeerDetermine(ieee);
1213
1214 /*
1215 * Decide IOT Action
1216 * Must be called after the parameter of pHTInfo->bCurrentRT2RTAggregation is decided
1217 */
1218 pHTInfo->IOTAction = 0;
1219 bIOTAction = HTIOTActIsDisableMCS14(ieee, pNetwork->bssid);
1220 if (bIOTAction)
1221 pHTInfo->IOTAction |= HT_IOT_ACT_DISABLE_MCS14;
1222
1223 bIOTAction = HTIOTActIsDisableMCS15(ieee);
1224 if (bIOTAction)
1225 pHTInfo->IOTAction |= HT_IOT_ACT_DISABLE_MCS15;
1226
1227 bIOTAction = HTIOTActIsDisableMCSTwoSpatialStream(ieee, pNetwork->bssid);
1228 if (bIOTAction)
1229 pHTInfo->IOTAction |= HT_IOT_ACT_DISABLE_ALL_2SS;
1230
1231 bIOTAction = HTIOTActIsDisableEDCATurbo(ieee, pNetwork->bssid);
1232 if (bIOTAction)
1233 pHTInfo->IOTAction |= HT_IOT_ACT_DISABLE_EDCA_TURBO;
1234
1235 bIOTAction = HTIOTActIsMgntUseCCK6M(pNetwork);
1236 if (bIOTAction)
1237 pHTInfo->IOTAction |= HT_IOT_ACT_MGNT_USE_CCK_6M;
1238
1239 bIOTAction = HTIOTActIsCCDFsync(pNetwork->bssid);
1240 if (bIOTAction)
1241 pHTInfo->IOTAction |= HT_IOT_ACT_CDD_FSYNC;
1242 } else {
1243 pHTInfo->bCurrentHTSupport = false;
1244 pHTInfo->bCurrentRT2RTAggregation = false;
1245 pHTInfo->bCurrentRT2RTLongSlotTime = false;
1246
1247 pHTInfo->IOTAction = 0;
1248 }
1249 }
1250
HTUpdateSelfAndPeerSetting(struct ieee80211_device * ieee,struct ieee80211_network * pNetwork)1251 void HTUpdateSelfAndPeerSetting(struct ieee80211_device *ieee, struct ieee80211_network *pNetwork)
1252 {
1253 PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo;
1254 // PHT_CAPABILITY_ELE pPeerHTCap = (PHT_CAPABILITY_ELE)pNetwork->bssht.bdHTCapBuf;
1255 PHT_INFORMATION_ELE pPeerHTInfo = (PHT_INFORMATION_ELE)pNetwork->bssht.bdHTInfoBuf;
1256
1257 if (pHTInfo->bCurrentHTSupport) {
1258 /*
1259 * Config current operation mode.
1260 */
1261 if (pNetwork->bssht.bdHTInfoLen != 0)
1262 pHTInfo->CurrentOpMode = pPeerHTInfo->OptMode;
1263
1264 /*
1265 * <TODO: Config according to OBSS non-HT STA present!!>
1266 */
1267 }
1268 }
1269 EXPORT_SYMBOL(HTUpdateSelfAndPeerSetting);
1270
1271 /*
1272 *function: check whether HT control field exists
1273 * input: struct ieee80211_device *ieee
1274 * u8* pFrame //coming skb->data
1275 * output: none
1276 * return: return true if HT control field exists(false otherwise)
1277 * notice:
1278 */
HTCCheck(struct ieee80211_device * ieee,u8 * pFrame)1279 u8 HTCCheck(struct ieee80211_device *ieee, u8 *pFrame)
1280 {
1281 if (ieee->pHTInfo->bCurrentHTSupport) {
1282 if ((IsQoSDataFrame(pFrame) && Frame_Order(pFrame)) == 1) {
1283 IEEE80211_DEBUG(IEEE80211_DL_HT, "HT CONTROL FILED EXIST!!\n");
1284 return true;
1285 }
1286 }
1287 return false;
1288 }
1289
1290 /*
1291 * This function set bandwidth mode in protocol layer.
1292 */
HTSetConnectBwMode(struct ieee80211_device * ieee,enum ht_channel_width Bandwidth,enum ht_extension_chan_offset Offset)1293 void HTSetConnectBwMode(struct ieee80211_device *ieee, enum ht_channel_width Bandwidth, enum ht_extension_chan_offset Offset)
1294 {
1295 PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo;
1296 // u32 flags = 0;
1297
1298 if (!pHTInfo->bRegBW40MHz)
1299 return;
1300
1301 // To reduce dummy operation
1302 // if((pHTInfo->bCurBW40MHz==false && Bandwidth==HT_CHANNEL_WIDTH_20) ||
1303 // (pHTInfo->bCurBW40MHz==true && Bandwidth==HT_CHANNEL_WIDTH_20_40 && Offset==pHTInfo->CurSTAExtChnlOffset))
1304 // return;
1305
1306 // spin_lock_irqsave(&(ieee->bw_spinlock), flags);
1307 if (pHTInfo->bSwBwInProgress) {
1308 // spin_unlock_irqrestore(&(ieee->bw_spinlock), flags);
1309 return;
1310 }
1311 //if in half N mode, set to 20M bandwidth please 09.08.2008 WB.
1312 if (Bandwidth == HT_CHANNEL_WIDTH_20_40 && (!ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev))) {
1313 // Handle Illegal extension channel offset!!
1314 if (ieee->current_network.channel < 2 && Offset == HT_EXTCHNL_OFFSET_LOWER)
1315 Offset = HT_EXTCHNL_OFFSET_NO_EXT;
1316 if (Offset == HT_EXTCHNL_OFFSET_UPPER || Offset == HT_EXTCHNL_OFFSET_LOWER) {
1317 pHTInfo->bCurBW40MHz = true;
1318 pHTInfo->CurSTAExtChnlOffset = Offset;
1319 } else {
1320 pHTInfo->bCurBW40MHz = false;
1321 pHTInfo->CurSTAExtChnlOffset = HT_EXTCHNL_OFFSET_NO_EXT;
1322 }
1323 } else {
1324 pHTInfo->bCurBW40MHz = false;
1325 pHTInfo->CurSTAExtChnlOffset = HT_EXTCHNL_OFFSET_NO_EXT;
1326 }
1327
1328 pHTInfo->bSwBwInProgress = true;
1329
1330 /*
1331 * TODO: 2007.7.13 by Emily Wait 2000ms in order to guarantee that
1332 * switching bandwidth is executed after scan is finished. It is a
1333 * temporal solution because software should ganrantee the last
1334 * operation of switching bandwidth is executed properlly.
1335 */
1336 HTSetConnectBwModeCallback(ieee);
1337
1338 // spin_unlock_irqrestore(&(ieee->bw_spinlock), flags);
1339 }
1340
HTSetConnectBwModeCallback(struct ieee80211_device * ieee)1341 void HTSetConnectBwModeCallback(struct ieee80211_device *ieee)
1342 {
1343 PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo;
1344
1345 IEEE80211_DEBUG(IEEE80211_DL_HT, "======>%s()\n", __func__);
1346
1347 if (pHTInfo->bCurBW40MHz) {
1348 if (pHTInfo->CurSTAExtChnlOffset == HT_EXTCHNL_OFFSET_UPPER)
1349 ieee->set_chan(ieee->dev, ieee->current_network.channel + 2);
1350 else if (pHTInfo->CurSTAExtChnlOffset == HT_EXTCHNL_OFFSET_LOWER)
1351 ieee->set_chan(ieee->dev, ieee->current_network.channel - 2);
1352 else
1353 ieee->set_chan(ieee->dev, ieee->current_network.channel);
1354
1355 ieee->SetBWModeHandler(ieee->dev, HT_CHANNEL_WIDTH_20_40, pHTInfo->CurSTAExtChnlOffset);
1356 } else {
1357 ieee->set_chan(ieee->dev, ieee->current_network.channel);
1358 ieee->SetBWModeHandler(ieee->dev, HT_CHANNEL_WIDTH_20, HT_EXTCHNL_OFFSET_NO_EXT);
1359 }
1360
1361 pHTInfo->bSwBwInProgress = false;
1362 }
1363
