1 // SPDX-License-Identifier: GPL-2.0
2 /*
3 * Copyright(c) 2008 - 2010 Realtek Corporation. All rights reserved.
4 *
5 * Contact Information: wlanfae <wlanfae@realtek.com>
6 */
7 #include "rtllib.h"
8 #include "rtl819x_HT.h"
9 u8 MCS_FILTER_ALL[16] = {
10 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
11 0xff, 0x1f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
12 };
13
14 u8 MCS_FILTER_1SS[16] = {
15 0xff, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00,
16 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}
17 ;
18
19 u16 MCS_DATA_RATE[2][2][77] = {
20 {{13, 26, 39, 52, 78, 104, 117, 130, 26, 52, 78, 104, 156, 208, 234,
21 260, 39, 78, 117, 234, 312, 351, 390, 52, 104, 156, 208, 312, 416,
22 468, 520, 0, 78, 104, 130, 117, 156, 195, 104, 130, 130, 156, 182,
23 182, 208, 156, 195, 195, 234, 273, 273, 312, 130, 156, 181, 156,
24 181, 208, 234, 208, 234, 260, 260, 286, 195, 234, 273, 234, 273,
25 312, 351, 312, 351, 390, 390, 429},
26 {14, 29, 43, 58, 87, 116, 130, 144, 29, 58, 87, 116, 173, 231, 260, 289,
27 43, 87, 130, 173, 260, 347, 390, 433, 58, 116, 173, 231, 347, 462, 520,
28 578, 0, 87, 116, 144, 130, 173, 217, 116, 144, 144, 173, 202, 202, 231,
29 173, 217, 217, 260, 303, 303, 347, 144, 173, 202, 173, 202, 231, 260,
30 231, 260, 289, 289, 318, 217, 260, 303, 260, 303, 347, 390, 347, 390,
31 433, 433, 477} },
32 {{27, 54, 81, 108, 162, 216, 243, 270, 54, 108, 162, 216, 324, 432, 486,
33 540, 81, 162, 243, 324, 486, 648, 729, 810, 108, 216, 324, 432, 648,
34 864, 972, 1080, 12, 162, 216, 270, 243, 324, 405, 216, 270, 270, 324,
35 378, 378, 432, 324, 405, 405, 486, 567, 567, 648, 270, 324, 378, 324,
36 378, 432, 486, 432, 486, 540, 540, 594, 405, 486, 567, 486, 567, 648,
37 729, 648, 729, 810, 810, 891},
38 {30, 60, 90, 120, 180, 240, 270, 300, 60, 120, 180, 240, 360, 480, 540,
39 600, 90, 180, 270, 360, 540, 720, 810, 900, 120, 240, 360, 480, 720,
40 960, 1080, 1200, 13, 180, 240, 300, 270, 360, 450, 240, 300, 300, 360,
41 420, 420, 480, 360, 450, 450, 540, 630, 630, 720, 300, 360, 420, 360,
42 420, 480, 540, 480, 540, 600, 600, 660, 450, 540, 630, 540, 630, 720,
43 810, 720, 810, 900, 900, 990} }
44 };
45
46 static u8 UNKNOWN_BORADCOM[3] = {0x00, 0x14, 0xbf};
47
48 static u8 LINKSYSWRT330_LINKSYSWRT300_BROADCOM[3] = {0x00, 0x1a, 0x70};
49
50 static u8 LINKSYSWRT350_LINKSYSWRT150_BROADCOM[3] = {0x00, 0x1d, 0x7e};
51
52 static u8 BELKINF5D8233V1_RALINK[3] = {0x00, 0x17, 0x3f};
53
54 static u8 BELKINF5D82334V3_RALINK[3] = {0x00, 0x1c, 0xdf};
55
56 static u8 PCI_RALINK[3] = {0x00, 0x90, 0xcc};
57
58 static u8 EDIMAX_RALINK[3] = {0x00, 0x0e, 0x2e};
59
60 static u8 AIRLINK_RALINK[3] = {0x00, 0x18, 0x02};
61
62 static u8 DLINK_ATHEROS_1[3] = {0x00, 0x1c, 0xf0};
63
64 static u8 DLINK_ATHEROS_2[3] = {0x00, 0x21, 0x91};
65
66 static u8 CISCO_BROADCOM[3] = {0x00, 0x17, 0x94};
67
68 static u8 LINKSYS_MARVELL_4400N[3] = {0x00, 0x14, 0xa4};
69
HTUpdateDefaultSetting(struct rtllib_device * ieee)70 void HTUpdateDefaultSetting(struct rtllib_device *ieee)
71 {
72 struct rt_hi_throughput *ht_info = ieee->ht_info;
73
74 ht_info->bRegShortGI20MHz = 1;
75 ht_info->bRegShortGI40MHz = 1;
76
77 ht_info->bRegBW40MHz = 1;
78
79 if (ht_info->bRegBW40MHz)
80 ht_info->bRegSuppCCK = 1;
81 else
82 ht_info->bRegSuppCCK = true;
83
84 ht_info->nAMSDU_MaxSize = 7935UL;
85 ht_info->bAMSDU_Support = 0;
86
87 ht_info->bAMPDUEnable = 1;
88 ht_info->AMPDU_Factor = 2;
89 ht_info->MPDU_Density = 0;
90
91 ht_info->self_mimo_ps = 3;
92 if (ht_info->self_mimo_ps == 2)
93 ht_info->self_mimo_ps = 3;
94 ieee->tx_dis_rate_fallback = 0;
95 ieee->tx_use_drv_assinged_rate = 0;
96
97 ieee->bTxEnableFwCalcDur = 1;
98
99 ht_info->reg_rt2rt_aggregation = 1;
100
101 ht_info->reg_rx_reorder_enable = 1;
102 ht_info->rx_reorder_win_size = 64;
103 ht_info->rx_reorder_pending_time = 30;
104 }
105
HTMcsToDataRate(struct rtllib_device * ieee,u8 nMcsRate)106 static u16 HTMcsToDataRate(struct rtllib_device *ieee, u8 nMcsRate)
107 {
108 struct rt_hi_throughput *ht_info = ieee->ht_info;
109
110 u8 is40MHz = (ht_info->bCurBW40MHz) ? 1 : 0;
111 u8 isShortGI = (ht_info->bCurBW40MHz) ?
112 ((ht_info->bCurShortGI40MHz) ? 1 : 0) :
113 ((ht_info->bCurShortGI20MHz) ? 1 : 0);
114 return MCS_DATA_RATE[is40MHz][isShortGI][(nMcsRate & 0x7f)];
115 }
116
TxCountToDataRate(struct rtllib_device * ieee,u8 nDataRate)117 u16 TxCountToDataRate(struct rtllib_device *ieee, u8 nDataRate)
118 {
119 u16 CCKOFDMRate[12] = {0x02, 0x04, 0x0b, 0x16, 0x0c, 0x12, 0x18,
120 0x24, 0x30, 0x48, 0x60, 0x6c};
121 u8 is40MHz = 0;
122 u8 isShortGI = 0;
123
124 if (nDataRate < 12)
125 return CCKOFDMRate[nDataRate];
126 if (nDataRate >= 0x10 && nDataRate <= 0x1f) {
127 is40MHz = 0;
128 isShortGI = 0;
129 } else if (nDataRate >= 0x20 && nDataRate <= 0x2f) {
130 is40MHz = 1;
131 isShortGI = 0;
132 } else if (nDataRate >= 0x30 && nDataRate <= 0x3f) {
133 is40MHz = 0;
134 isShortGI = 1;
135 } else if (nDataRate >= 0x40 && nDataRate <= 0x4f) {
136 is40MHz = 1;
137 isShortGI = 1;
138 }
139 return MCS_DATA_RATE[is40MHz][isShortGI][nDataRate & 0xf];
140 }
141
IsHTHalfNmodeAPs(struct rtllib_device * ieee)142 bool IsHTHalfNmodeAPs(struct rtllib_device *ieee)
143 {
144 bool retValue = false;
145 struct rtllib_network *net = &ieee->current_network;
146
147 if ((memcmp(net->bssid, BELKINF5D8233V1_RALINK, 3) == 0) ||
148 (memcmp(net->bssid, BELKINF5D82334V3_RALINK, 3) == 0) ||
149 (memcmp(net->bssid, PCI_RALINK, 3) == 0) ||
150 (memcmp(net->bssid, EDIMAX_RALINK, 3) == 0) ||
151 (memcmp(net->bssid, AIRLINK_RALINK, 3) == 0) ||
152 (net->ralink_cap_exist))
153 retValue = true;
154 else if (!memcmp(net->bssid, UNKNOWN_BORADCOM, 3) ||
155 !memcmp(net->bssid, LINKSYSWRT330_LINKSYSWRT300_BROADCOM, 3) ||
156 !memcmp(net->bssid, LINKSYSWRT350_LINKSYSWRT150_BROADCOM, 3) ||
157 (net->broadcom_cap_exist))
158 retValue = true;
159 else if (net->bssht.bd_rt2rt_aggregation)
160 retValue = true;
161 else
162 retValue = false;
163
164 return retValue;
165 }
166
HTIOTPeerDetermine(struct rtllib_device * ieee)167 static void HTIOTPeerDetermine(struct rtllib_device *ieee)
168 {
169 struct rt_hi_throughput *ht_info = ieee->ht_info;
170 struct rtllib_network *net = &ieee->current_network;
171
172 if (net->bssht.bd_rt2rt_aggregation) {
173 ht_info->IOTPeer = HT_IOT_PEER_REALTEK;
174 if (net->bssht.rt2rt_ht_mode & RT_HT_CAP_USE_92SE)
175 ht_info->IOTPeer = HT_IOT_PEER_REALTEK_92SE;
176 if (net->bssht.rt2rt_ht_mode & RT_HT_CAP_USE_SOFTAP)
177 ht_info->IOTPeer = HT_IOT_PEER_92U_SOFTAP;
178 } else if (net->broadcom_cap_exist) {
179 ht_info->IOTPeer = HT_IOT_PEER_BROADCOM;
180 } else if (!memcmp(net->bssid, UNKNOWN_BORADCOM, 3) ||
181 !memcmp(net->bssid, LINKSYSWRT330_LINKSYSWRT300_BROADCOM, 3) ||
182 !memcmp(net->bssid, LINKSYSWRT350_LINKSYSWRT150_BROADCOM, 3)) {
183 ht_info->IOTPeer = HT_IOT_PEER_BROADCOM;
184 } else if ((memcmp(net->bssid, BELKINF5D8233V1_RALINK, 3) == 0) ||
185 (memcmp(net->bssid, BELKINF5D82334V3_RALINK, 3) == 0) ||
186 (memcmp(net->bssid, PCI_RALINK, 3) == 0) ||
187 (memcmp(net->bssid, EDIMAX_RALINK, 3) == 0) ||
188 (memcmp(net->bssid, AIRLINK_RALINK, 3) == 0) ||
189 net->ralink_cap_exist) {
190 ht_info->IOTPeer = HT_IOT_PEER_RALINK;
191 } else if ((net->atheros_cap_exist) ||
192 (memcmp(net->bssid, DLINK_ATHEROS_1, 3) == 0) ||
193 (memcmp(net->bssid, DLINK_ATHEROS_2, 3) == 0)) {
194 ht_info->IOTPeer = HT_IOT_PEER_ATHEROS;
195 } else if ((memcmp(net->bssid, CISCO_BROADCOM, 3) == 0) ||
196 net->cisco_cap_exist) {
197 ht_info->IOTPeer = HT_IOT_PEER_CISCO;
198 } else if ((memcmp(net->bssid, LINKSYS_MARVELL_4400N, 3) == 0) ||
199 net->marvell_cap_exist) {
200 ht_info->IOTPeer = HT_IOT_PEER_MARVELL;
201 } else if (net->airgo_cap_exist) {
202 ht_info->IOTPeer = HT_IOT_PEER_AIRGO;
203 } else {
204 ht_info->IOTPeer = HT_IOT_PEER_UNKNOWN;
205 }
206
207 netdev_dbg(ieee->dev, "IOTPEER: %x\n", ht_info->IOTPeer);
208 }
209
HTIOTActIsDisableMCS14(struct rtllib_device * ieee,u8 * PeerMacAddr)210 static u8 HTIOTActIsDisableMCS14(struct rtllib_device *ieee, u8 *PeerMacAddr)
211 {
212 return 0;
213 }
214
HTIOTActIsDisableMCS15(struct rtllib_device * ieee)215 static bool HTIOTActIsDisableMCS15(struct rtllib_device *ieee)
216 {
217 return false;
218 }
219
HTIOTActIsDisableMCSTwoSpatialStream(struct rtllib_device * ieee)220 static bool HTIOTActIsDisableMCSTwoSpatialStream(struct rtllib_device *ieee)
221 {
222 return false;
223 }
224
HTIOTActIsDisableEDCATurbo(struct rtllib_device * ieee,u8 * PeerMacAddr)225 static u8 HTIOTActIsDisableEDCATurbo(struct rtllib_device *ieee,
226 u8 *PeerMacAddr)
227 {
228 return false;
229 }
230
HTIOTActIsMgntUseCCK6M(struct rtllib_device * ieee,struct rtllib_network * network)231 static u8 HTIOTActIsMgntUseCCK6M(struct rtllib_device *ieee,
232 struct rtllib_network *network)
233 {
234 u8 retValue = 0;
235
236 if (ieee->ht_info->IOTPeer == HT_IOT_PEER_BROADCOM)
237 retValue = 1;
238
239 return retValue;
240 }
241
HTIOTActIsCCDFsync(struct rtllib_device * ieee)242 static u8 HTIOTActIsCCDFsync(struct rtllib_device *ieee)
243 {
244 u8 retValue = 0;
245
246 if (ieee->ht_info->IOTPeer == HT_IOT_PEER_BROADCOM)
247 retValue = 1;
248 return retValue;
249 }
250
HTIOTActDetermineRaFunc(struct rtllib_device * ieee,bool bPeerRx2ss)251 static void HTIOTActDetermineRaFunc(struct rtllib_device *ieee, bool bPeerRx2ss)
252 {
253 struct rt_hi_throughput *ht_info = ieee->ht_info;
254
255 ht_info->iot_ra_func &= HT_IOT_RAFUNC_DISABLE_ALL;
256
257 if (ht_info->IOTPeer == HT_IOT_PEER_RALINK && !bPeerRx2ss)
258 ht_info->iot_ra_func |= HT_IOT_RAFUNC_PEER_1R;
259
260 if (ht_info->iot_action & HT_IOT_ACT_AMSDU_ENABLE)
261 ht_info->iot_ra_func |= HT_IOT_RAFUNC_TX_AMSDU;
262 }
263
HTResetIOTSetting(struct rt_hi_throughput * ht_info)264 void HTResetIOTSetting(struct rt_hi_throughput *ht_info)
265 {
266 ht_info->iot_action = 0;
267 ht_info->IOTPeer = HT_IOT_PEER_UNKNOWN;
268 ht_info->iot_ra_func = 0;
269 }
270
HTConstructCapabilityElement(struct rtllib_device * ieee,u8 * posHTCap,u8 * len,u8 IsEncrypt,bool bAssoc)271 void HTConstructCapabilityElement(struct rtllib_device *ieee, u8 *posHTCap,
272 u8 *len, u8 IsEncrypt, bool bAssoc)
273 {
274 struct rt_hi_throughput *pHT = ieee->ht_info;
275 struct ht_capab_ele *pCapELE = NULL;
276
277 if (!posHTCap || !pHT) {
278 netdev_warn(ieee->dev,
279 "%s(): posHTCap and ht_info are null\n", __func__);
280 return;
281 }
282 memset(posHTCap, 0, *len);
283
284 if ((bAssoc) && (pHT->ePeerHTSpecVer == HT_SPEC_VER_EWC)) {
285 static const u8 EWC11NHTCap[] = { 0x00, 0x90, 0x4c, 0x33 };
286
287 memcpy(posHTCap, EWC11NHTCap, sizeof(EWC11NHTCap));
288 pCapELE = (struct ht_capab_ele *)&posHTCap[4];
289 *len = 30 + 2;
290 } else {
291 pCapELE = (struct ht_capab_ele *)posHTCap;
292 *len = 26 + 2;
293 }
294
295 pCapELE->AdvCoding = 0;
296 if (ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev))
297 pCapELE->ChlWidth = 0;
298 else
299 pCapELE->ChlWidth = (pHT->bRegBW40MHz ? 1 : 0);
300
301 pCapELE->MimoPwrSave = pHT->self_mimo_ps;
302 pCapELE->GreenField = 0;
303 pCapELE->ShortGI20Mhz = 1;
304 pCapELE->ShortGI40Mhz = 1;
305
306 pCapELE->TxSTBC = 1;
307 pCapELE->RxSTBC = 0;
308 pCapELE->DelayBA = 0;
309 pCapELE->MaxAMSDUSize = (MAX_RECEIVE_BUFFER_SIZE >= 7935) ? 1 : 0;
310 pCapELE->DssCCk = ((pHT->bRegBW40MHz) ? (pHT->bRegSuppCCK ? 1 : 0) : 0);
311 pCapELE->PSMP = 0;
312 pCapELE->LSigTxopProtect = 0;
313
314 netdev_dbg(ieee->dev,
315 "TX HT cap/info ele BW=%d MaxAMSDUSize:%d DssCCk:%d\n",
316 pCapELE->ChlWidth, pCapELE->MaxAMSDUSize, pCapELE->DssCCk);
317
318 if (IsEncrypt) {
319 pCapELE->MPDUDensity = 7;
320 pCapELE->MaxRxAMPDUFactor = 2;
321 } else {
322 pCapELE->MaxRxAMPDUFactor = 3;
323 pCapELE->MPDUDensity = 0;
324 }
325
326 memcpy(pCapELE->MCS, ieee->reg_dot11ht_oper_rate_set, 16);
327 memset(&pCapELE->ExtHTCapInfo, 0, 2);
328 memset(pCapELE->TxBFCap, 0, 4);
329
330 pCapELE->ASCap = 0;
331
332 if (bAssoc) {
333 if (pHT->iot_action & HT_IOT_ACT_DISABLE_MCS15)
334 pCapELE->MCS[1] &= 0x7f;
335
336 if (pHT->iot_action & HT_IOT_ACT_DISABLE_MCS14)
337 pCapELE->MCS[1] &= 0xbf;
338
339 if (pHT->iot_action & HT_IOT_ACT_DISABLE_ALL_2SS)
340 pCapELE->MCS[1] &= 0x00;
341
342 if (pHT->iot_action & HT_IOT_ACT_DISABLE_RX_40MHZ_SHORT_GI)
343 pCapELE->ShortGI40Mhz = 0;
344
345 if (ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev)) {
346 pCapELE->ChlWidth = 0;
347 pCapELE->MCS[1] = 0;
348 }
349 }
350 }
351
HTConstructInfoElement(struct rtllib_device * ieee,u8 * posHTInfo,u8 * len,u8 IsEncrypt)352 void HTConstructInfoElement(struct rtllib_device *ieee, u8 *posHTInfo,
353 u8 *len, u8 IsEncrypt)
354 {
355 struct rt_hi_throughput *pHT = ieee->ht_info;
356 struct ht_info_ele *pHTInfoEle = (struct ht_info_ele *)posHTInfo;
357
358 if (!posHTInfo || !pHTInfoEle) {
359 netdev_warn(ieee->dev,
360 "%s(): posHTInfo and pHTInfoEle are null\n",
361 __func__);
362 return;
363 }
364
365 memset(posHTInfo, 0, *len);
366 if (ieee->iw_mode == IW_MODE_ADHOC) {
367 pHTInfoEle->ControlChl = ieee->current_network.channel;
368 pHTInfoEle->ExtChlOffset = ((!pHT->bRegBW40MHz) ?
369 HT_EXTCHNL_OFFSET_NO_EXT :
370 (ieee->current_network.channel <= 6)
371 ? HT_EXTCHNL_OFFSET_UPPER :
372 HT_EXTCHNL_OFFSET_LOWER);
373 pHTInfoEle->RecommemdedTxWidth = pHT->bRegBW40MHz;
374 pHTInfoEle->RIFS = 0;
375 pHTInfoEle->PSMPAccessOnly = 0;
376 pHTInfoEle->SrvIntGranularity = 0;
377 pHTInfoEle->OptMode = pHT->current_op_mode;
378 pHTInfoEle->NonGFDevPresent = 0;
379 pHTInfoEle->DualBeacon = 0;
380 pHTInfoEle->SecondaryBeacon = 0;
381 pHTInfoEle->LSigTxopProtectFull = 0;
382 pHTInfoEle->PcoActive = 0;
383 pHTInfoEle->PcoPhase = 0;
384
385 memset(pHTInfoEle->BasicMSC, 0, 16);
386
387 *len = 22 + 2;
388
389 } else {
390 *len = 0;
391 }
392 }
393
HTConstructRT2RTAggElement(struct rtllib_device * ieee,u8 * posRT2RTAgg,u8 * len)394 void HTConstructRT2RTAggElement(struct rtllib_device *ieee, u8 *posRT2RTAgg,
395 u8 *len)
396 {
397 if (!posRT2RTAgg) {
398 netdev_warn(ieee->dev, "%s(): posRT2RTAgg is null\n", __func__);
399 return;
400 }
401 memset(posRT2RTAgg, 0, *len);
402 *posRT2RTAgg++ = 0x00;
403 *posRT2RTAgg++ = 0xe0;
404 *posRT2RTAgg++ = 0x4c;
405 *posRT2RTAgg++ = 0x02;
406 *posRT2RTAgg++ = 0x01;
407
408 *posRT2RTAgg = 0x30;
409
410 if (ieee->bSupportRemoteWakeUp)
411 *posRT2RTAgg |= RT_HT_CAP_USE_WOW;
412
413 *len = 6 + 2;
414 }
415
HT_PickMCSRate(struct rtllib_device * ieee,u8 * pOperateMCS)416 static u8 HT_PickMCSRate(struct rtllib_device *ieee, u8 *pOperateMCS)
417 {
418 u8 i;
419
420 if (!pOperateMCS) {
421 netdev_warn(ieee->dev, "%s(): pOperateMCS is null\n", __func__);
422 return false;
423 }
424
425 switch (ieee->mode) {
426 case WIRELESS_MODE_B:
427 case WIRELESS_MODE_G:
428 for (i = 0; i <= 15; i++)
429 pOperateMCS[i] = 0;
430 break;
431 case WIRELESS_MODE_N_24G:
432 pOperateMCS[0] &= RATE_ADPT_1SS_MASK;
433 pOperateMCS[1] &= RATE_ADPT_2SS_MASK;
434 pOperateMCS[3] &= RATE_ADPT_MCS32_MASK;
435 break;
436 default:
437 break;
438 }
439
440 return true;
441 }
442
HTGetHighestMCSRate(struct rtllib_device * ieee,u8 * pMCSRateSet,u8 * pMCSFilter)443 u8 HTGetHighestMCSRate(struct rtllib_device *ieee, u8 *pMCSRateSet,
444 u8 *pMCSFilter)
445 {
446 u8 i, j;
447 u8 bitMap;
448 u8 mcsRate = 0;
449 u8 availableMcsRate[16];
450
451 if (!pMCSRateSet || !pMCSFilter) {
452 netdev_warn(ieee->dev,
453 "%s(): pMCSRateSet and pMCSFilter are null\n",
454 __func__);
455 return false;
456 }
457 for (i = 0; i < 16; i++)
458 availableMcsRate[i] = pMCSRateSet[i] & pMCSFilter[i];
459
460 for (i = 0; i < 16; i++) {
461 if (availableMcsRate[i] != 0)
462 break;
463 }
464 if (i == 16)
465 return false;
466
467 for (i = 0; i < 16; i++) {
468 if (availableMcsRate[i] != 0) {
469 bitMap = availableMcsRate[i];
470 for (j = 0; j < 8; j++) {
471 if ((bitMap % 2) != 0) {
472 if (HTMcsToDataRate(ieee, (8 * i + j)) >
473 HTMcsToDataRate(ieee, mcsRate))
474 mcsRate = 8 * i + j;
475 }
476 bitMap >>= 1;
477 }
478 }
479 }
480 return mcsRate | 0x80;
481 }
482
HTFilterMCSRate(struct rtllib_device * ieee,u8 * pSupportMCS,u8 * pOperateMCS)483 static u8 HTFilterMCSRate(struct rtllib_device *ieee, u8 *pSupportMCS,
484 u8 *pOperateMCS)
485 {
486 u8 i;
487
488 for (i = 0; i <= 15; i++)
489 pOperateMCS[i] = ieee->reg_dot11tx_ht_oper_rate_set[i] &
490 pSupportMCS[i];
491
492 HT_PickMCSRate(ieee, pOperateMCS);
493
494 if (ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev))
495 pOperateMCS[1] = 0;
496
497 for (i = 2; i <= 15; i++)
498 pOperateMCS[i] = 0;
499
500 return true;
501 }
502
503 void HTSetConnectBwMode(struct rtllib_device *ieee,
504 enum ht_channel_width bandwidth,
505 enum ht_extchnl_offset Offset);
506
HTOnAssocRsp(struct rtllib_device * ieee)507 void HTOnAssocRsp(struct rtllib_device *ieee)
508 {
509 struct rt_hi_throughput *ht_info = ieee->ht_info;
510 struct ht_capab_ele *pPeerHTCap = NULL;
511 struct ht_info_ele *pPeerHTInfo = NULL;
512 u16 nMaxAMSDUSize = 0;
513 u8 *pMcsFilter = NULL;
514
515 static const u8 EWC11NHTCap[] = { 0x00, 0x90, 0x4c, 0x33 };
516 static const u8 EWC11NHTInfo[] = { 0x00, 0x90, 0x4c, 0x34 };
517
518 if (!ht_info->bCurrentHTSupport) {
519 netdev_warn(ieee->dev, "%s(): HT_DISABLE\n", __func__);
520 return;
521 }
522 netdev_dbg(ieee->dev, "%s(): HT_ENABLE\n", __func__);
523
524 if (!memcmp(ht_info->PeerHTCapBuf, EWC11NHTCap, sizeof(EWC11NHTCap)))
525 pPeerHTCap = (struct ht_capab_ele *)(&ht_info->PeerHTCapBuf[4]);
526 else
527 pPeerHTCap = (struct ht_capab_ele *)(ht_info->PeerHTCapBuf);
528
529 if (!memcmp(ht_info->PeerHTInfoBuf, EWC11NHTInfo, sizeof(EWC11NHTInfo)))
530 pPeerHTInfo = (struct ht_info_ele *)
531 (&ht_info->PeerHTInfoBuf[4]);
532 else
533 pPeerHTInfo = (struct ht_info_ele *)(ht_info->PeerHTInfoBuf);
534
535 #ifdef VERBOSE_DEBUG
536 print_hex_dump_bytes("%s: ", __func__, DUMP_PREFIX_NONE,
537 pPeerHTCap, sizeof(struct ht_capab_ele));
538 #endif
539 HTSetConnectBwMode(ieee, (enum ht_channel_width)(pPeerHTCap->ChlWidth),
540 (enum ht_extchnl_offset)(pPeerHTInfo->ExtChlOffset));
541 ht_info->cur_tx_bw40mhz = ((pPeerHTInfo->RecommemdedTxWidth == 1) ?
542 true : false);
543
544 ht_info->bCurShortGI20MHz = ((ht_info->bRegShortGI20MHz) ?
545 ((pPeerHTCap->ShortGI20Mhz == 1) ?
546 true : false) : false);
547 ht_info->bCurShortGI40MHz = ((ht_info->bRegShortGI40MHz) ?
548 ((pPeerHTCap->ShortGI40Mhz == 1) ?
549 true : false) : false);
550
551 ht_info->bCurSuppCCK = ((ht_info->bRegSuppCCK) ?
552 ((pPeerHTCap->DssCCk == 1) ? true :
553 false) : false);
554
555 ht_info->bCurrent_AMSDU_Support = ht_info->bAMSDU_Support;
556
557 nMaxAMSDUSize = (pPeerHTCap->MaxAMSDUSize == 0) ? 3839 : 7935;
558
559 if (ht_info->nAMSDU_MaxSize > nMaxAMSDUSize)
560 ht_info->nCurrent_AMSDU_MaxSize = nMaxAMSDUSize;
561 else
562 ht_info->nCurrent_AMSDU_MaxSize = ht_info->nAMSDU_MaxSize;
563
564 ht_info->bCurrentAMPDUEnable = ht_info->bAMPDUEnable;
565 if (ieee->rtllib_ap_sec_type &&
566 (ieee->rtllib_ap_sec_type(ieee) & (SEC_ALG_WEP | SEC_ALG_TKIP))) {
567 if ((ht_info->IOTPeer == HT_IOT_PEER_ATHEROS) ||
568 (ht_info->IOTPeer == HT_IOT_PEER_UNKNOWN))
569 ht_info->bCurrentAMPDUEnable = false;
570 }
571
572 if (!ht_info->reg_rt2rt_aggregation) {
573 if (ht_info->AMPDU_Factor > pPeerHTCap->MaxRxAMPDUFactor)
574 ht_info->CurrentAMPDUFactor =
575 pPeerHTCap->MaxRxAMPDUFactor;
576 else
577 ht_info->CurrentAMPDUFactor = ht_info->AMPDU_Factor;
578
579 } else {
580 if (ieee->current_network.bssht.bd_rt2rt_aggregation) {
581 if (ieee->pairwise_key_type != KEY_TYPE_NA)
582 ht_info->CurrentAMPDUFactor =
583 pPeerHTCap->MaxRxAMPDUFactor;
584 else
585 ht_info->CurrentAMPDUFactor = HT_AGG_SIZE_64K;
586 } else {
587 ht_info->CurrentAMPDUFactor = min_t(u32, pPeerHTCap->MaxRxAMPDUFactor,
588 HT_AGG_SIZE_32K);
589 }
590 }
591 ht_info->current_mpdu_density = max_t(u8, ht_info->MPDU_Density,
592 pPeerHTCap->MPDUDensity);
593 if (ht_info->iot_action & HT_IOT_ACT_TX_USE_AMSDU_8K) {
594 ht_info->bCurrentAMPDUEnable = false;
595 ht_info->ForcedAMSDUMode = HT_AGG_FORCE_ENABLE;
596 }
597 ht_info->cur_rx_reorder_enable = ht_info->reg_rx_reorder_enable;
598
599 if (pPeerHTCap->MCS[0] == 0)
600 pPeerHTCap->MCS[0] = 0xff;
601
602 HTIOTActDetermineRaFunc(ieee, ((pPeerHTCap->MCS[1]) != 0));
603
604 HTFilterMCSRate(ieee, pPeerHTCap->MCS, ieee->dot11ht_oper_rate_set);
605
606 ht_info->peer_mimo_ps = pPeerHTCap->MimoPwrSave;
607 if (ht_info->peer_mimo_ps == MIMO_PS_STATIC)
608 pMcsFilter = MCS_FILTER_1SS;
609 else
610 pMcsFilter = MCS_FILTER_ALL;
611 ieee->HTHighestOperaRate = HTGetHighestMCSRate(ieee,
612 ieee->dot11ht_oper_rate_set,
613 pMcsFilter);
614 ieee->HTCurrentOperaRate = ieee->HTHighestOperaRate;
615
616 ht_info->current_op_mode = pPeerHTInfo->OptMode;
617 }
618
HTInitializeHTInfo(struct rtllib_device * ieee)619 void HTInitializeHTInfo(struct rtllib_device *ieee)
620 {
621 struct rt_hi_throughput *ht_info = ieee->ht_info;
622
623 ht_info->bCurrentHTSupport = false;
624
625 ht_info->bCurBW40MHz = false;
626 ht_info->cur_tx_bw40mhz = false;
627
628 ht_info->bCurShortGI20MHz = false;
629 ht_info->bCurShortGI40MHz = false;
630 ht_info->forced_short_gi = false;
631
632 ht_info->bCurSuppCCK = true;
633
634 ht_info->bCurrent_AMSDU_Support = false;
635 ht_info->nCurrent_AMSDU_MaxSize = ht_info->nAMSDU_MaxSize;
636 ht_info->current_mpdu_density = ht_info->MPDU_Density;
637 ht_info->CurrentAMPDUFactor = ht_info->AMPDU_Factor;
638
639 memset((void *)(&ht_info->SelfHTCap), 0,
640 sizeof(ht_info->SelfHTCap));
641 memset((void *)(&ht_info->SelfHTInfo), 0,
642 sizeof(ht_info->SelfHTInfo));
643 memset((void *)(&ht_info->PeerHTCapBuf), 0,
644 sizeof(ht_info->PeerHTCapBuf));
645 memset((void *)(&ht_info->PeerHTInfoBuf), 0,
646 sizeof(ht_info->PeerHTInfoBuf));
647
648 ht_info->sw_bw_in_progress = false;
649
650 ht_info->ePeerHTSpecVer = HT_SPEC_VER_IEEE;
651
652 ht_info->current_rt2rt_aggregation = false;
653 ht_info->current_rt2rt_long_slot_time = false;
654 ht_info->RT2RT_HT_Mode = (enum rt_ht_capability)0;
655
656 ht_info->IOTPeer = 0;
657 ht_info->iot_action = 0;
658 ht_info->iot_ra_func = 0;
659
660 {
661 u8 *RegHTSuppRateSets = &ieee->reg_ht_supp_rate_set[0];
662
663 RegHTSuppRateSets[0] = 0xFF;
664 RegHTSuppRateSets[1] = 0xFF;
665 RegHTSuppRateSets[4] = 0x01;
666 }
667 }
668
HTInitializeBssDesc(struct bss_ht * pBssHT)669 void HTInitializeBssDesc(struct bss_ht *pBssHT)
670 {
671 pBssHT->bd_support_ht = false;
672 memset(pBssHT->bd_ht_cap_buf, 0, sizeof(pBssHT->bd_ht_cap_buf));
673 pBssHT->bd_ht_cap_len = 0;
674 memset(pBssHT->bd_ht_info_buf, 0, sizeof(pBssHT->bd_ht_info_buf));
675 pBssHT->bd_ht_info_len = 0;
676
677 pBssHT->bd_ht_spec_ver = HT_SPEC_VER_IEEE;
678
679 pBssHT->bd_rt2rt_aggregation = false;
680 pBssHT->bd_rt2rt_long_slot_time = false;
681 pBssHT->rt2rt_ht_mode = (enum rt_ht_capability)0;
682 }
683
HTResetSelfAndSavePeerSetting(struct rtllib_device * ieee,struct rtllib_network * pNetwork)684 void HTResetSelfAndSavePeerSetting(struct rtllib_device *ieee,
685 struct rtllib_network *pNetwork)
686 {
687 struct rt_hi_throughput *ht_info = ieee->ht_info;
688 u8 bIOTAction = 0;
689
690 /* unmark enable_ht flag here is the same reason why unmarked in
691 * function rtllib_softmac_new_net. WB 2008.09.10
692 */
693 if (pNetwork->bssht.bd_support_ht) {
694 ht_info->bCurrentHTSupport = true;
695 ht_info->ePeerHTSpecVer = pNetwork->bssht.bd_ht_spec_ver;
696
697 if (pNetwork->bssht.bd_ht_cap_len > 0 &&
698 pNetwork->bssht.bd_ht_cap_len <= sizeof(ht_info->PeerHTCapBuf))
699 memcpy(ht_info->PeerHTCapBuf,
700 pNetwork->bssht.bd_ht_cap_buf,
701 pNetwork->bssht.bd_ht_cap_len);
702
703 if (pNetwork->bssht.bd_ht_info_len > 0 &&
704 pNetwork->bssht.bd_ht_info_len <=
705 sizeof(ht_info->PeerHTInfoBuf))
706 memcpy(ht_info->PeerHTInfoBuf,
707 pNetwork->bssht.bd_ht_info_buf,
708 pNetwork->bssht.bd_ht_info_len);
709
710 if (ht_info->reg_rt2rt_aggregation) {
711 ht_info->current_rt2rt_aggregation =
712 pNetwork->bssht.bd_rt2rt_aggregation;
713 ht_info->current_rt2rt_long_slot_time =
714 pNetwork->bssht.bd_rt2rt_long_slot_time;
715 ht_info->RT2RT_HT_Mode = pNetwork->bssht.rt2rt_ht_mode;
716 } else {
717 ht_info->current_rt2rt_aggregation = false;
718 ht_info->current_rt2rt_long_slot_time = false;
719 ht_info->RT2RT_HT_Mode = (enum rt_ht_capability)0;
720 }
721
722 HTIOTPeerDetermine(ieee);
723
724 ht_info->iot_action = 0;
725 bIOTAction = HTIOTActIsDisableMCS14(ieee, pNetwork->bssid);
726 if (bIOTAction)
727 ht_info->iot_action |= HT_IOT_ACT_DISABLE_MCS14;
728
729 bIOTAction = HTIOTActIsDisableMCS15(ieee);
730 if (bIOTAction)
731 ht_info->iot_action |= HT_IOT_ACT_DISABLE_MCS15;
732
733 bIOTAction = HTIOTActIsDisableMCSTwoSpatialStream(ieee);
734 if (bIOTAction)
735 ht_info->iot_action |= HT_IOT_ACT_DISABLE_ALL_2SS;
736
737 bIOTAction = HTIOTActIsDisableEDCATurbo(ieee, pNetwork->bssid);
738 if (bIOTAction)
739 ht_info->iot_action |= HT_IOT_ACT_DISABLE_EDCA_TURBO;
740
741 bIOTAction = HTIOTActIsMgntUseCCK6M(ieee, pNetwork);
742 if (bIOTAction)
743 ht_info->iot_action |= HT_IOT_ACT_MGNT_USE_CCK_6M;
744 bIOTAction = HTIOTActIsCCDFsync(ieee);
745 if (bIOTAction)
746 ht_info->iot_action |= HT_IOT_ACT_CDD_FSYNC;
747 } else {
748 ht_info->bCurrentHTSupport = false;
749 ht_info->current_rt2rt_aggregation = false;
750 ht_info->current_rt2rt_long_slot_time = false;
751 ht_info->RT2RT_HT_Mode = (enum rt_ht_capability)0;
752
753 ht_info->iot_action = 0;
754 ht_info->iot_ra_func = 0;
755 }
756 }
757
HT_update_self_and_peer_setting(struct rtllib_device * ieee,struct rtllib_network * pNetwork)758 void HT_update_self_and_peer_setting(struct rtllib_device *ieee,
759 struct rtllib_network *pNetwork)
760 {
761 struct rt_hi_throughput *ht_info = ieee->ht_info;
762 struct ht_info_ele *pPeerHTInfo =
763 (struct ht_info_ele *)pNetwork->bssht.bd_ht_info_buf;
764
765 if (ht_info->bCurrentHTSupport) {
766 if (pNetwork->bssht.bd_ht_info_len != 0)
767 ht_info->current_op_mode = pPeerHTInfo->OptMode;
768 }
769 }
770 EXPORT_SYMBOL(HT_update_self_and_peer_setting);
771
HTUseDefaultSetting(struct rtllib_device * ieee)772 void HTUseDefaultSetting(struct rtllib_device *ieee)
773 {
774 struct rt_hi_throughput *ht_info = ieee->ht_info;
775
776 if (ht_info->enable_ht) {
777 ht_info->bCurrentHTSupport = true;
778 ht_info->bCurSuppCCK = ht_info->bRegSuppCCK;
779
780 ht_info->bCurBW40MHz = ht_info->bRegBW40MHz;
781 ht_info->bCurShortGI20MHz = ht_info->bRegShortGI20MHz;
782
783 ht_info->bCurShortGI40MHz = ht_info->bRegShortGI40MHz;
784
785 if (ieee->iw_mode == IW_MODE_ADHOC)
786 ieee->current_network.qos_data.active =
787 ieee->current_network.qos_data.supported;
788 ht_info->bCurrent_AMSDU_Support = ht_info->bAMSDU_Support;
789 ht_info->nCurrent_AMSDU_MaxSize = ht_info->nAMSDU_MaxSize;
790
791 ht_info->bCurrentAMPDUEnable = ht_info->bAMPDUEnable;
792 ht_info->CurrentAMPDUFactor = ht_info->AMPDU_Factor;
793
794 ht_info->current_mpdu_density = ht_info->current_mpdu_density;
795
796 HTFilterMCSRate(ieee, ieee->reg_dot11tx_ht_oper_rate_set,
797 ieee->dot11ht_oper_rate_set);
798 ieee->HTHighestOperaRate = HTGetHighestMCSRate(ieee,
799 ieee->dot11ht_oper_rate_set,
800 MCS_FILTER_ALL);
801 ieee->HTCurrentOperaRate = ieee->HTHighestOperaRate;
802
803 } else {
804 ht_info->bCurrentHTSupport = false;
805 }
806 }
807
HTCCheck(struct rtllib_device * ieee,u8 * pFrame)808 u8 HTCCheck(struct rtllib_device *ieee, u8 *pFrame)
809 {
810 if (ieee->ht_info->bCurrentHTSupport) {
811 if ((IsQoSDataFrame(pFrame) && Frame_Order(pFrame)) == 1) {
812 netdev_dbg(ieee->dev, "HT CONTROL FILED EXIST!!\n");
813 return true;
814 }
815 }
816 return false;
817 }
818
HTSetConnectBwModeCallback(struct rtllib_device * ieee)819 static void HTSetConnectBwModeCallback(struct rtllib_device *ieee)
820 {
821 struct rt_hi_throughput *ht_info = ieee->ht_info;
822
823 if (ht_info->bCurBW40MHz) {
824 if (ht_info->CurSTAExtChnlOffset == HT_EXTCHNL_OFFSET_UPPER)
825 ieee->set_chan(ieee->dev,
826 ieee->current_network.channel + 2);
827 else if (ht_info->CurSTAExtChnlOffset ==
828 HT_EXTCHNL_OFFSET_LOWER)
829 ieee->set_chan(ieee->dev,
830 ieee->current_network.channel - 2);
831 else
832 ieee->set_chan(ieee->dev,
833 ieee->current_network.channel);
834
835 ieee->set_bw_mode_handler(ieee->dev, HT_CHANNEL_WIDTH_20_40,
836 ht_info->CurSTAExtChnlOffset);
837 } else {
838 ieee->set_chan(ieee->dev, ieee->current_network.channel);
839 ieee->set_bw_mode_handler(ieee->dev, HT_CHANNEL_WIDTH_20,
840 HT_EXTCHNL_OFFSET_NO_EXT);
841 }
842
843 ht_info->sw_bw_in_progress = false;
844 }
845
HTSetConnectBwMode(struct rtllib_device * ieee,enum ht_channel_width bandwidth,enum ht_extchnl_offset Offset)846 void HTSetConnectBwMode(struct rtllib_device *ieee,
847 enum ht_channel_width bandwidth,
848 enum ht_extchnl_offset Offset)
849 {
850 struct rt_hi_throughput *ht_info = ieee->ht_info;
851
852 if (!ht_info->bRegBW40MHz)
853 return;
854
855 if (ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev))
856 bandwidth = HT_CHANNEL_WIDTH_20;
857
858 if (ht_info->sw_bw_in_progress) {
859 pr_info("%s: sw_bw_in_progress!!\n", __func__);
860 return;
861 }
862 if (bandwidth == HT_CHANNEL_WIDTH_20_40) {
863 if (ieee->current_network.channel < 2 &&
864 Offset == HT_EXTCHNL_OFFSET_LOWER)
865 Offset = HT_EXTCHNL_OFFSET_NO_EXT;
866 if (Offset == HT_EXTCHNL_OFFSET_UPPER ||
867 Offset == HT_EXTCHNL_OFFSET_LOWER) {
868 ht_info->bCurBW40MHz = true;
869 ht_info->CurSTAExtChnlOffset = Offset;
870 } else {
871 ht_info->bCurBW40MHz = false;
872 ht_info->CurSTAExtChnlOffset = HT_EXTCHNL_OFFSET_NO_EXT;
873 }
874 } else {
875 ht_info->bCurBW40MHz = false;
876 ht_info->CurSTAExtChnlOffset = HT_EXTCHNL_OFFSET_NO_EXT;
877 }
878
879 netdev_dbg(ieee->dev, "%s():ht_info->bCurBW40MHz:%x\n", __func__,
880 ht_info->bCurBW40MHz);
881
882 ht_info->sw_bw_in_progress = true;
883
884 HTSetConnectBwModeCallback(ieee);
885 }
886