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"
9u8 MCS_FILTER_ALL[16] = {
10 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
11 0xff, 0x1f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
12};
13
14u8 MCS_FILTER_1SS[16] = {
15 0xff, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00,
16 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}
17;
18
19u16 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
46static u8 UNKNOWN_BORADCOM[3] = {0x00, 0x14, 0xbf};
47
48static u8 LINKSYSWRT330_LINKSYSWRT300_BROADCOM[3] = {0x00, 0x1a, 0x70};
49
50static u8 LINKSYSWRT350_LINKSYSWRT150_BROADCOM[3] = {0x00, 0x1d, 0x7e};
51
52static u8 BELKINF5D8233V1_RALINK[3] = {0x00, 0x17, 0x3f};
53
54static u8 BELKINF5D82334V3_RALINK[3] = {0x00, 0x1c, 0xdf};
55
56static u8 PCI_RALINK[3] = {0x00, 0x90, 0xcc};
57
58static u8 EDIMAX_RALINK[3] = {0x00, 0x0e, 0x2e};
59
60static u8 AIRLINK_RALINK[3] = {0x00, 0x18, 0x02};
61
62static u8 DLINK_ATHEROS_1[3] = {0x00, 0x1c, 0xf0};
63
64static u8 DLINK_ATHEROS_2[3] = {0x00, 0x21, 0x91};
65
66static u8 CISCO_BROADCOM[3] = {0x00, 0x17, 0x94};
67
68static u8 LINKSYS_MARVELL_4400N[3] = {0x00, 0x14, 0xa4};
69
70void ht_update_default_setting(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
106static 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
117u16 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
142bool IsHTHalfNmodeAPs(struct rtllib_device *ieee)
143{
144 bool retValue = false;
145 struct rtllib_network *net = &ieee->current_network;
146
147 if ((memcmp(p: net->bssid, q: BELKINF5D8233V1_RALINK, size: 3) == 0) ||
148 (memcmp(p: net->bssid, q: BELKINF5D82334V3_RALINK, size: 3) == 0) ||
149 (memcmp(p: net->bssid, q: PCI_RALINK, size: 3) == 0) ||
150 (memcmp(p: net->bssid, q: EDIMAX_RALINK, size: 3) == 0) ||
151 (memcmp(p: net->bssid, q: AIRLINK_RALINK, size: 3) == 0) ||
152 (net->ralink_cap_exist))
153 retValue = true;
154 else if (!memcmp(p: net->bssid, q: UNKNOWN_BORADCOM, size: 3) ||
155 !memcmp(p: net->bssid, q: LINKSYSWRT330_LINKSYSWRT300_BROADCOM, size: 3) ||
156 !memcmp(p: net->bssid, q: LINKSYSWRT350_LINKSYSWRT150_BROADCOM, size: 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
167static 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(p: net->bssid, q: UNKNOWN_BORADCOM, size: 3) ||
181 !memcmp(p: net->bssid, q: LINKSYSWRT330_LINKSYSWRT300_BROADCOM, size: 3) ||
182 !memcmp(p: net->bssid, q: LINKSYSWRT350_LINKSYSWRT150_BROADCOM, size: 3)) {
183 ht_info->IOTPeer = HT_IOT_PEER_BROADCOM;
184 } else if ((memcmp(p: net->bssid, q: BELKINF5D8233V1_RALINK, size: 3) == 0) ||
185 (memcmp(p: net->bssid, q: BELKINF5D82334V3_RALINK, size: 3) == 0) ||
186 (memcmp(p: net->bssid, q: PCI_RALINK, size: 3) == 0) ||
187 (memcmp(p: net->bssid, q: EDIMAX_RALINK, size: 3) == 0) ||
188 (memcmp(p: net->bssid, q: AIRLINK_RALINK, size: 3) == 0) ||
189 net->ralink_cap_exist) {
190 ht_info->IOTPeer = HT_IOT_PEER_RALINK;
191 } else if ((net->atheros_cap_exist) ||
192 (memcmp(p: net->bssid, q: DLINK_ATHEROS_1, size: 3) == 0) ||
193 (memcmp(p: net->bssid, q: DLINK_ATHEROS_2, size: 3) == 0)) {
194 ht_info->IOTPeer = HT_IOT_PEER_ATHEROS;
195 } else if ((memcmp(p: net->bssid, q: CISCO_BROADCOM, size: 3) == 0) ||
196 net->cisco_cap_exist) {
197 ht_info->IOTPeer = HT_IOT_PEER_CISCO;
198 } else if ((memcmp(p: net->bssid, q: LINKSYS_MARVELL_4400N, size: 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
210static u8 HTIOTActIsMgntUseCCK6M(struct rtllib_device *ieee,
211 struct rtllib_network *network)
212{
213 u8 retValue = 0;
214
215 if (ieee->ht_info->IOTPeer == HT_IOT_PEER_BROADCOM)
216 retValue = 1;
217
218 return retValue;
219}
220
221static u8 HTIOTActIsCCDFsync(struct rtllib_device *ieee)
222{
223 u8 retValue = 0;
224
225 if (ieee->ht_info->IOTPeer == HT_IOT_PEER_BROADCOM)
226 retValue = 1;
227 return retValue;
228}
229
230static void HTIOTActDetermineRaFunc(struct rtllib_device *ieee, bool bPeerRx2ss)
231{
232 struct rt_hi_throughput *ht_info = ieee->ht_info;
233
234 ht_info->iot_ra_func &= HT_IOT_RAFUNC_DISABLE_ALL;
235
236 if (ht_info->IOTPeer == HT_IOT_PEER_RALINK && !bPeerRx2ss)
237 ht_info->iot_ra_func |= HT_IOT_RAFUNC_PEER_1R;
238
239 if (ht_info->iot_action & HT_IOT_ACT_AMSDU_ENABLE)
240 ht_info->iot_ra_func |= HT_IOT_RAFUNC_TX_AMSDU;
241}
242
243void HTResetIOTSetting(struct rt_hi_throughput *ht_info)
244{
245 ht_info->iot_action = 0;
246 ht_info->IOTPeer = HT_IOT_PEER_UNKNOWN;
247 ht_info->iot_ra_func = 0;
248}
249
250void HTConstructCapabilityElement(struct rtllib_device *ieee, u8 *posHTCap,
251 u8 *len, u8 IsEncrypt, bool bAssoc)
252{
253 struct rt_hi_throughput *pHT = ieee->ht_info;
254 struct ht_capab_ele *pCapELE = NULL;
255
256 if (!posHTCap || !pHT) {
257 netdev_warn(dev: ieee->dev,
258 format: "%s(): posHTCap and ht_info are null\n", __func__);
259 return;
260 }
261 memset(posHTCap, 0, *len);
262
263 if ((bAssoc) && (pHT->ePeerHTSpecVer == HT_SPEC_VER_EWC)) {
264 static const u8 EWC11NHTCap[] = { 0x00, 0x90, 0x4c, 0x33 };
265
266 memcpy(posHTCap, EWC11NHTCap, sizeof(EWC11NHTCap));
267 pCapELE = (struct ht_capab_ele *)&posHTCap[4];
268 *len = 30 + 2;
269 } else {
270 pCapELE = (struct ht_capab_ele *)posHTCap;
271 *len = 26 + 2;
272 }
273
274 pCapELE->AdvCoding = 0;
275 if (ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev))
276 pCapELE->ChlWidth = 0;
277 else
278 pCapELE->ChlWidth = (pHT->bRegBW40MHz ? 1 : 0);
279
280 pCapELE->MimoPwrSave = pHT->self_mimo_ps;
281 pCapELE->GreenField = 0;
282 pCapELE->ShortGI20Mhz = 1;
283 pCapELE->ShortGI40Mhz = 1;
284
285 pCapELE->TxSTBC = 1;
286 pCapELE->RxSTBC = 0;
287 pCapELE->DelayBA = 0;
288 pCapELE->MaxAMSDUSize = (MAX_RECEIVE_BUFFER_SIZE >= 7935) ? 1 : 0;
289 pCapELE->DssCCk = ((pHT->bRegBW40MHz) ? (pHT->bRegSuppCCK ? 1 : 0) : 0);
290 pCapELE->PSMP = 0;
291 pCapELE->LSigTxopProtect = 0;
292
293 netdev_dbg(ieee->dev,
294 "TX HT cap/info ele BW=%d MaxAMSDUSize:%d DssCCk:%d\n",
295 pCapELE->ChlWidth, pCapELE->MaxAMSDUSize, pCapELE->DssCCk);
296
297 if (IsEncrypt) {
298 pCapELE->MPDUDensity = 7;
299 pCapELE->MaxRxAMPDUFactor = 2;
300 } else {
301 pCapELE->MaxRxAMPDUFactor = 3;
302 pCapELE->MPDUDensity = 0;
303 }
304
305 memcpy(pCapELE->MCS, ieee->reg_dot11ht_oper_rate_set, 16);
306 memset(&pCapELE->ExtHTCapInfo, 0, 2);
307 memset(pCapELE->TxBFCap, 0, 4);
308
309 pCapELE->ASCap = 0;
310
311 if (bAssoc) {
312 if (pHT->iot_action & HT_IOT_ACT_DISABLE_MCS15)
313 pCapELE->MCS[1] &= 0x7f;
314
315 if (pHT->iot_action & HT_IOT_ACT_DISABLE_MCS14)
316 pCapELE->MCS[1] &= 0xbf;
317
318 if (pHT->iot_action & HT_IOT_ACT_DISABLE_ALL_2SS)
319 pCapELE->MCS[1] &= 0x00;
320
321 if (pHT->iot_action & HT_IOT_ACT_DISABLE_RX_40MHZ_SHORT_GI)
322 pCapELE->ShortGI40Mhz = 0;
323
324 if (ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev)) {
325 pCapELE->ChlWidth = 0;
326 pCapELE->MCS[1] = 0;
327 }
328 }
329}
330
331void HTConstructInfoElement(struct rtllib_device *ieee, u8 *posHTInfo,
332 u8 *len, u8 IsEncrypt)
333{
334 struct ht_info_ele *pHTInfoEle = (struct ht_info_ele *)posHTInfo;
335
336 if (!posHTInfo || !pHTInfoEle) {
337 netdev_warn(dev: ieee->dev,
338 format: "%s(): posHTInfo and pHTInfoEle are null\n",
339 __func__);
340 return;
341 }
342
343 memset(posHTInfo, 0, *len);
344 *len = 0;
345}
346
347void HTConstructRT2RTAggElement(struct rtllib_device *ieee, u8 *posRT2RTAgg,
348 u8 *len)
349{
350 if (!posRT2RTAgg) {
351 netdev_warn(dev: ieee->dev, format: "%s(): posRT2RTAgg is null\n", __func__);
352 return;
353 }
354 memset(posRT2RTAgg, 0, *len);
355 *posRT2RTAgg++ = 0x00;
356 *posRT2RTAgg++ = 0xe0;
357 *posRT2RTAgg++ = 0x4c;
358 *posRT2RTAgg++ = 0x02;
359 *posRT2RTAgg++ = 0x01;
360
361 *posRT2RTAgg = 0x30;
362
363 if (ieee->bSupportRemoteWakeUp)
364 *posRT2RTAgg |= RT_HT_CAP_USE_WOW;
365
366 *len = 6 + 2;
367}
368
369static u8 HT_PickMCSRate(struct rtllib_device *ieee, u8 *pOperateMCS)
370{
371 u8 i;
372
373 if (!pOperateMCS) {
374 netdev_warn(dev: ieee->dev, format: "%s(): pOperateMCS is null\n", __func__);
375 return false;
376 }
377
378 switch (ieee->mode) {
379 case WIRELESS_MODE_B:
380 case WIRELESS_MODE_G:
381 for (i = 0; i <= 15; i++)
382 pOperateMCS[i] = 0;
383 break;
384 case WIRELESS_MODE_N_24G:
385 pOperateMCS[0] &= RATE_ADPT_1SS_MASK;
386 pOperateMCS[1] &= RATE_ADPT_2SS_MASK;
387 pOperateMCS[3] &= RATE_ADPT_MCS32_MASK;
388 break;
389 default:
390 break;
391 }
392
393 return true;
394}
395
396u8 HTGetHighestMCSRate(struct rtllib_device *ieee, u8 *pMCSRateSet,
397 u8 *pMCSFilter)
398{
399 u8 i, j;
400 u8 bitMap;
401 u8 mcsRate = 0;
402 u8 availableMcsRate[16];
403
404 if (!pMCSRateSet || !pMCSFilter) {
405 netdev_warn(dev: ieee->dev,
406 format: "%s(): pMCSRateSet and pMCSFilter are null\n",
407 __func__);
408 return false;
409 }
410 for (i = 0; i < 16; i++)
411 availableMcsRate[i] = pMCSRateSet[i] & pMCSFilter[i];
412
413 for (i = 0; i < 16; i++) {
414 if (availableMcsRate[i] != 0)
415 break;
416 }
417 if (i == 16)
418 return false;
419
420 for (i = 0; i < 16; i++) {
421 if (availableMcsRate[i] != 0) {
422 bitMap = availableMcsRate[i];
423 for (j = 0; j < 8; j++) {
424 if ((bitMap % 2) != 0) {
425 if (HTMcsToDataRate(ieee, nMcsRate: (8 * i + j)) >
426 HTMcsToDataRate(ieee, nMcsRate: mcsRate))
427 mcsRate = 8 * i + j;
428 }
429 bitMap >>= 1;
430 }
431 }
432 }
433 return mcsRate | 0x80;
434}
435
436static u8 HTFilterMCSRate(struct rtllib_device *ieee, u8 *pSupportMCS,
437 u8 *pOperateMCS)
438{
439 u8 i;
440
441 for (i = 0; i <= 15; i++)
442 pOperateMCS[i] = ieee->reg_dot11tx_ht_oper_rate_set[i] &
443 pSupportMCS[i];
444
445 HT_PickMCSRate(ieee, pOperateMCS);
446
447 if (ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev))
448 pOperateMCS[1] = 0;
449
450 for (i = 2; i <= 15; i++)
451 pOperateMCS[i] = 0;
452
453 return true;
454}
455
456void HTSetConnectBwMode(struct rtllib_device *ieee,
457 enum ht_channel_width bandwidth,
458 enum ht_extchnl_offset Offset);
459
460void HTOnAssocRsp(struct rtllib_device *ieee)
461{
462 struct rt_hi_throughput *ht_info = ieee->ht_info;
463 struct ht_capab_ele *pPeerHTCap = NULL;
464 struct ht_info_ele *pPeerHTInfo = NULL;
465 u16 nMaxAMSDUSize = 0;
466 u8 *pMcsFilter = NULL;
467
468 static const u8 EWC11NHTCap[] = { 0x00, 0x90, 0x4c, 0x33 };
469 static const u8 EWC11NHTInfo[] = { 0x00, 0x90, 0x4c, 0x34 };
470
471 if (!ht_info->current_ht_support) {
472 netdev_warn(dev: ieee->dev, format: "%s(): HT_DISABLE\n", __func__);
473 return;
474 }
475 netdev_dbg(ieee->dev, "%s(): HT_ENABLE\n", __func__);
476
477 if (!memcmp(p: ht_info->PeerHTCapBuf, q: EWC11NHTCap, size: sizeof(EWC11NHTCap)))
478 pPeerHTCap = (struct ht_capab_ele *)(&ht_info->PeerHTCapBuf[4]);
479 else
480 pPeerHTCap = (struct ht_capab_ele *)(ht_info->PeerHTCapBuf);
481
482 if (!memcmp(p: ht_info->PeerHTInfoBuf, q: EWC11NHTInfo, size: sizeof(EWC11NHTInfo)))
483 pPeerHTInfo = (struct ht_info_ele *)
484 (&ht_info->PeerHTInfoBuf[4]);
485 else
486 pPeerHTInfo = (struct ht_info_ele *)(ht_info->PeerHTInfoBuf);
487
488#ifdef VERBOSE_DEBUG
489 print_hex_dump_bytes("%s: ", __func__, DUMP_PREFIX_NONE,
490 pPeerHTCap, sizeof(struct ht_capab_ele));
491#endif
492 HTSetConnectBwMode(ieee, bandwidth: (enum ht_channel_width)(pPeerHTCap->ChlWidth),
493 Offset: (enum ht_extchnl_offset)(pPeerHTInfo->ExtChlOffset));
494 ht_info->cur_tx_bw40mhz = ((pPeerHTInfo->RecommemdedTxWidth == 1) ?
495 true : false);
496
497 ht_info->bCurShortGI20MHz = ((ht_info->bRegShortGI20MHz) ?
498 ((pPeerHTCap->ShortGI20Mhz == 1) ?
499 true : false) : false);
500 ht_info->bCurShortGI40MHz = ((ht_info->bRegShortGI40MHz) ?
501 ((pPeerHTCap->ShortGI40Mhz == 1) ?
502 true : false) : false);
503
504 ht_info->bCurSuppCCK = ((ht_info->bRegSuppCCK) ?
505 ((pPeerHTCap->DssCCk == 1) ? true :
506 false) : false);
507
508 ht_info->bCurrent_AMSDU_Support = ht_info->bAMSDU_Support;
509
510 nMaxAMSDUSize = (pPeerHTCap->MaxAMSDUSize == 0) ? 3839 : 7935;
511
512 if (ht_info->nAMSDU_MaxSize > nMaxAMSDUSize)
513 ht_info->nCurrent_AMSDU_MaxSize = nMaxAMSDUSize;
514 else
515 ht_info->nCurrent_AMSDU_MaxSize = ht_info->nAMSDU_MaxSize;
516
517 ht_info->bCurrentAMPDUEnable = ht_info->bAMPDUEnable;
518 if (ieee->rtllib_ap_sec_type &&
519 (ieee->rtllib_ap_sec_type(ieee) & (SEC_ALG_WEP | SEC_ALG_TKIP))) {
520 if ((ht_info->IOTPeer == HT_IOT_PEER_ATHEROS) ||
521 (ht_info->IOTPeer == HT_IOT_PEER_UNKNOWN))
522 ht_info->bCurrentAMPDUEnable = false;
523 }
524
525 if (!ht_info->reg_rt2rt_aggregation) {
526 if (ht_info->AMPDU_Factor > pPeerHTCap->MaxRxAMPDUFactor)
527 ht_info->CurrentAMPDUFactor =
528 pPeerHTCap->MaxRxAMPDUFactor;
529 else
530 ht_info->CurrentAMPDUFactor = ht_info->AMPDU_Factor;
531
532 } else {
533 if (ieee->current_network.bssht.bd_rt2rt_aggregation) {
534 if (ieee->pairwise_key_type != KEY_TYPE_NA)
535 ht_info->CurrentAMPDUFactor =
536 pPeerHTCap->MaxRxAMPDUFactor;
537 else
538 ht_info->CurrentAMPDUFactor = HT_AGG_SIZE_64K;
539 } else {
540 ht_info->CurrentAMPDUFactor = min_t(u32, pPeerHTCap->MaxRxAMPDUFactor,
541 HT_AGG_SIZE_32K);
542 }
543 }
544 ht_info->current_mpdu_density = max_t(u8, ht_info->MPDU_Density,
545 pPeerHTCap->MPDUDensity);
546 if (ht_info->iot_action & HT_IOT_ACT_TX_USE_AMSDU_8K) {
547 ht_info->bCurrentAMPDUEnable = false;
548 ht_info->ForcedAMSDUMode = HT_AGG_FORCE_ENABLE;
549 }
550 ht_info->cur_rx_reorder_enable = ht_info->reg_rx_reorder_enable;
551
552 if (pPeerHTCap->MCS[0] == 0)
553 pPeerHTCap->MCS[0] = 0xff;
554
555 HTIOTActDetermineRaFunc(ieee, bPeerRx2ss: ((pPeerHTCap->MCS[1]) != 0));
556
557 HTFilterMCSRate(ieee, pSupportMCS: pPeerHTCap->MCS, pOperateMCS: ieee->dot11ht_oper_rate_set);
558
559 ht_info->peer_mimo_ps = pPeerHTCap->MimoPwrSave;
560 if (ht_info->peer_mimo_ps == MIMO_PS_STATIC)
561 pMcsFilter = MCS_FILTER_1SS;
562 else
563 pMcsFilter = MCS_FILTER_ALL;
564 ieee->HTHighestOperaRate = HTGetHighestMCSRate(ieee,
565 pMCSRateSet: ieee->dot11ht_oper_rate_set,
566 pMCSFilter: pMcsFilter);
567 ieee->HTCurrentOperaRate = ieee->HTHighestOperaRate;
568
569 ht_info->current_op_mode = pPeerHTInfo->OptMode;
570}
571
572void HTInitializeHTInfo(struct rtllib_device *ieee)
573{
574 struct rt_hi_throughput *ht_info = ieee->ht_info;
575
576 ht_info->current_ht_support = false;
577
578 ht_info->bCurBW40MHz = false;
579 ht_info->cur_tx_bw40mhz = false;
580
581 ht_info->bCurShortGI20MHz = false;
582 ht_info->bCurShortGI40MHz = false;
583 ht_info->forced_short_gi = false;
584
585 ht_info->bCurSuppCCK = true;
586
587 ht_info->bCurrent_AMSDU_Support = false;
588 ht_info->nCurrent_AMSDU_MaxSize = ht_info->nAMSDU_MaxSize;
589 ht_info->current_mpdu_density = ht_info->MPDU_Density;
590 ht_info->CurrentAMPDUFactor = ht_info->AMPDU_Factor;
591
592 memset((void *)(&ht_info->SelfHTCap), 0,
593 sizeof(ht_info->SelfHTCap));
594 memset((void *)(&ht_info->SelfHTInfo), 0,
595 sizeof(ht_info->SelfHTInfo));
596 memset((void *)(&ht_info->PeerHTCapBuf), 0,
597 sizeof(ht_info->PeerHTCapBuf));
598 memset((void *)(&ht_info->PeerHTInfoBuf), 0,
599 sizeof(ht_info->PeerHTInfoBuf));
600
601 ht_info->sw_bw_in_progress = false;
602
603 ht_info->ePeerHTSpecVer = HT_SPEC_VER_IEEE;
604
605 ht_info->current_rt2rt_aggregation = false;
606 ht_info->current_rt2rt_long_slot_time = false;
607 ht_info->RT2RT_HT_Mode = (enum rt_ht_capability)0;
608
609 ht_info->IOTPeer = 0;
610 ht_info->iot_action = 0;
611 ht_info->iot_ra_func = 0;
612
613 {
614 u8 *RegHTSuppRateSets = &ieee->reg_ht_supp_rate_set[0];
615
616 RegHTSuppRateSets[0] = 0xFF;
617 RegHTSuppRateSets[1] = 0xFF;
618 RegHTSuppRateSets[4] = 0x01;
619 }
620}
621
622void HTInitializeBssDesc(struct bss_ht *pBssHT)
623{
624 pBssHT->bd_support_ht = false;
625 memset(pBssHT->bd_ht_cap_buf, 0, sizeof(pBssHT->bd_ht_cap_buf));
626 pBssHT->bd_ht_cap_len = 0;
627 memset(pBssHT->bd_ht_info_buf, 0, sizeof(pBssHT->bd_ht_info_buf));
628 pBssHT->bd_ht_info_len = 0;
629
630 pBssHT->bd_ht_spec_ver = HT_SPEC_VER_IEEE;
631
632 pBssHT->bd_rt2rt_aggregation = false;
633 pBssHT->bd_rt2rt_long_slot_time = false;
634 pBssHT->rt2rt_ht_mode = (enum rt_ht_capability)0;
635}
636
637void HTResetSelfAndSavePeerSetting(struct rtllib_device *ieee,
638 struct rtllib_network *pNetwork)
639{
640 struct rt_hi_throughput *ht_info = ieee->ht_info;
641 u8 bIOTAction = 0;
642
643 /* unmark enable_ht flag here is the same reason why unmarked in
644 * function rtllib_softmac_new_net. WB 2008.09.10
645 */
646 if (pNetwork->bssht.bd_support_ht) {
647 ht_info->current_ht_support = true;
648 ht_info->ePeerHTSpecVer = pNetwork->bssht.bd_ht_spec_ver;
649
650 if (pNetwork->bssht.bd_ht_cap_len > 0 &&
651 pNetwork->bssht.bd_ht_cap_len <= sizeof(ht_info->PeerHTCapBuf))
652 memcpy(ht_info->PeerHTCapBuf,
653 pNetwork->bssht.bd_ht_cap_buf,
654 pNetwork->bssht.bd_ht_cap_len);
655
656 if (pNetwork->bssht.bd_ht_info_len > 0 &&
657 pNetwork->bssht.bd_ht_info_len <=
658 sizeof(ht_info->PeerHTInfoBuf))
659 memcpy(ht_info->PeerHTInfoBuf,
660 pNetwork->bssht.bd_ht_info_buf,
661 pNetwork->bssht.bd_ht_info_len);
662
663 if (ht_info->reg_rt2rt_aggregation) {
664 ht_info->current_rt2rt_aggregation =
665 pNetwork->bssht.bd_rt2rt_aggregation;
666 ht_info->current_rt2rt_long_slot_time =
667 pNetwork->bssht.bd_rt2rt_long_slot_time;
668 ht_info->RT2RT_HT_Mode = pNetwork->bssht.rt2rt_ht_mode;
669 } else {
670 ht_info->current_rt2rt_aggregation = false;
671 ht_info->current_rt2rt_long_slot_time = false;
672 ht_info->RT2RT_HT_Mode = (enum rt_ht_capability)0;
673 }
674
675 HTIOTPeerDetermine(ieee);
676
677 ht_info->iot_action = 0;
678 bIOTAction = HTIOTActIsMgntUseCCK6M(ieee, network: pNetwork);
679 if (bIOTAction)
680 ht_info->iot_action |= HT_IOT_ACT_MGNT_USE_CCK_6M;
681 bIOTAction = HTIOTActIsCCDFsync(ieee);
682 if (bIOTAction)
683 ht_info->iot_action |= HT_IOT_ACT_CDD_FSYNC;
684 } else {
685 ht_info->current_ht_support = false;
686 ht_info->current_rt2rt_aggregation = false;
687 ht_info->current_rt2rt_long_slot_time = false;
688 ht_info->RT2RT_HT_Mode = (enum rt_ht_capability)0;
689
690 ht_info->iot_action = 0;
691 ht_info->iot_ra_func = 0;
692 }
693}
694
695void HT_update_self_and_peer_setting(struct rtllib_device *ieee,
696 struct rtllib_network *pNetwork)
697{
698 struct rt_hi_throughput *ht_info = ieee->ht_info;
699 struct ht_info_ele *pPeerHTInfo =
700 (struct ht_info_ele *)pNetwork->bssht.bd_ht_info_buf;
701
702 if (ht_info->current_ht_support) {
703 if (pNetwork->bssht.bd_ht_info_len != 0)
704 ht_info->current_op_mode = pPeerHTInfo->OptMode;
705 }
706}
707EXPORT_SYMBOL(HT_update_self_and_peer_setting);
708
709u8 HTCCheck(struct rtllib_device *ieee, u8 *pFrame)
710{
711 if (ieee->ht_info->current_ht_support) {
712 if ((IsQoSDataFrame(pFrame) && Frame_Order(pFrame)) == 1) {
713 netdev_dbg(ieee->dev, "HT CONTROL FILED EXIST!!\n");
714 return true;
715 }
716 }
717 return false;
718}
719
720static void HTSetConnectBwModeCallback(struct rtllib_device *ieee)
721{
722 struct rt_hi_throughput *ht_info = ieee->ht_info;
723
724 if (ht_info->bCurBW40MHz) {
725 if (ht_info->CurSTAExtChnlOffset == HT_EXTCHNL_OFFSET_UPPER)
726 ieee->set_chan(ieee->dev,
727 ieee->current_network.channel + 2);
728 else if (ht_info->CurSTAExtChnlOffset ==
729 HT_EXTCHNL_OFFSET_LOWER)
730 ieee->set_chan(ieee->dev,
731 ieee->current_network.channel - 2);
732 else
733 ieee->set_chan(ieee->dev,
734 ieee->current_network.channel);
735
736 ieee->set_bw_mode_handler(ieee->dev, HT_CHANNEL_WIDTH_20_40,
737 ht_info->CurSTAExtChnlOffset);
738 } else {
739 ieee->set_chan(ieee->dev, ieee->current_network.channel);
740 ieee->set_bw_mode_handler(ieee->dev, HT_CHANNEL_WIDTH_20,
741 HT_EXTCHNL_OFFSET_NO_EXT);
742 }
743
744 ht_info->sw_bw_in_progress = false;
745}
746
747void HTSetConnectBwMode(struct rtllib_device *ieee,
748 enum ht_channel_width bandwidth,
749 enum ht_extchnl_offset Offset)
750{
751 struct rt_hi_throughput *ht_info = ieee->ht_info;
752
753 if (!ht_info->bRegBW40MHz)
754 return;
755
756 if (ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev))
757 bandwidth = HT_CHANNEL_WIDTH_20;
758
759 if (ht_info->sw_bw_in_progress) {
760 pr_info("%s: sw_bw_in_progress!!\n", __func__);
761 return;
762 }
763 if (bandwidth == HT_CHANNEL_WIDTH_20_40) {
764 if (ieee->current_network.channel < 2 &&
765 Offset == HT_EXTCHNL_OFFSET_LOWER)
766 Offset = HT_EXTCHNL_OFFSET_NO_EXT;
767 if (Offset == HT_EXTCHNL_OFFSET_UPPER ||
768 Offset == HT_EXTCHNL_OFFSET_LOWER) {
769 ht_info->bCurBW40MHz = true;
770 ht_info->CurSTAExtChnlOffset = Offset;
771 } else {
772 ht_info->bCurBW40MHz = false;
773 ht_info->CurSTAExtChnlOffset = HT_EXTCHNL_OFFSET_NO_EXT;
774 }
775 } else {
776 ht_info->bCurBW40MHz = false;
777 ht_info->CurSTAExtChnlOffset = HT_EXTCHNL_OFFSET_NO_EXT;
778 }
779
780 netdev_dbg(ieee->dev, "%s():ht_info->bCurBW40MHz:%x\n", __func__,
781 ht_info->bCurBW40MHz);
782
783 ht_info->sw_bw_in_progress = true;
784
785 HTSetConnectBwModeCallback(ieee);
786}
787

source code of linux/drivers/staging/rtl8192e/rtl819x_HTProc.c