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