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rtl819x_HTProc.c
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1 /******************************************************************************
2  * Copyright(c) 2008 - 2010 Realtek Corporation. All rights reserved.
3  *
4  * This program is distributed in the hope that it will be useful, but WITHOUT
5  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
6  * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
7  * more details.
8  *
9  * You should have received a copy of the GNU General Public License along with
10  * this program; if not, write to the Free Software Foundation, Inc.,
11  * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
12  *
13  * The full GNU General Public License is included in this distribution in the
14  * file called LICENSE.
15  *
16  * Contact Information:
17  * wlanfae <[email protected]>
18 ******************************************************************************/
19 #include "rtllib.h"
20 #include "rtl819x_HT.h"
21 u8 MCS_FILTER_ALL[16] = {
22  0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
23  0xff, 0x1f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
24 };
25 
26 u8 MCS_FILTER_1SS[16] = {
27  0xff, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00,
28  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}
29 ;
30 
31 u16 MCS_DATA_RATE[2][2][77] = {
32  {{13, 26, 39, 52, 78, 104, 117, 130, 26, 52, 78, 104, 156, 208, 234,
33  260, 39, 78, 117, 234, 312, 351, 390, 52, 104, 156, 208, 312, 416,
34  468, 520, 0, 78, 104, 130, 117, 156, 195, 104, 130, 130, 156, 182,
35  182, 208, 156, 195, 195, 234, 273, 273, 312, 130, 156, 181, 156,
36  181, 208, 234, 208, 234, 260, 260, 286, 195, 234, 273, 234, 273,
37  312, 351, 312, 351, 390, 390, 429} ,
38  {14, 29, 43, 58, 87, 116, 130, 144, 29, 58, 87, 116, 173, 231, 260, 289,
39  43, 87, 130, 173, 260, 347, 390, 433, 58, 116, 173, 231, 347, 462, 520,
40  578, 0, 87, 116, 144, 130, 173, 217, 116, 144, 144, 173, 202, 202, 231,
41  173, 217, 217, 260, 303, 303, 347, 144, 173, 202, 173, 202, 231, 260,
42  231, 260, 289, 289, 318, 217, 260, 303, 260, 303, 347, 390, 347, 390,
43  433, 433, 477} } ,
44  {{27, 54, 81, 108, 162, 216, 243, 270, 54, 108, 162, 216, 324, 432, 486,
45  540, 81, 162, 243, 324, 486, 648, 729, 810, 108, 216, 324, 432, 648,
46  864, 972, 1080, 12, 162, 216, 270, 243, 324, 405, 216, 270, 270, 324,
47  378, 378, 432, 324, 405, 405, 486, 567, 567, 648, 270, 324, 378, 324,
48  378, 432, 486, 432, 486, 540, 540, 594, 405, 486, 567, 486, 567, 648,
49  729, 648, 729, 810, 810, 891},
50  {30, 60, 90, 120, 180, 240, 270, 300, 60, 120, 180, 240, 360, 480, 540,
51  600, 90, 180, 270, 360, 540, 720, 810, 900, 120, 240, 360, 480, 720,
52  960, 1080, 1200, 13, 180, 240, 300, 270, 360, 450, 240, 300, 300, 360,
53  420, 420, 480, 360, 450, 450, 540, 630, 630, 720, 300, 360, 420, 360,
54  420, 480, 540, 480, 540, 600, 600, 660, 450, 540, 630, 540, 630, 720,
55  810, 720, 810, 900, 900, 990} }
56 };
57 
58 static u8 UNKNOWN_BORADCOM[3] = {0x00, 0x14, 0xbf};
59 
60 static u8 LINKSYSWRT330_LINKSYSWRT300_BROADCOM[3] = {0x00, 0x1a, 0x70};
61 
62 static u8 LINKSYSWRT350_LINKSYSWRT150_BROADCOM[3] = {0x00, 0x1d, 0x7e};
63 
64 static u8 BELKINF5D8233V1_RALINK[3] = {0x00, 0x17, 0x3f};
65 
66 static u8 BELKINF5D82334V3_RALINK[3] = {0x00, 0x1c, 0xdf};
67 
68 static u8 PCI_RALINK[3] = {0x00, 0x90, 0xcc};
69 
70 static u8 EDIMAX_RALINK[3] = {0x00, 0x0e, 0x2e};
71 
72 static u8 AIRLINK_RALINK[3] = {0x00, 0x18, 0x02};
73 
74 static u8 DLINK_ATHEROS_1[3] = {0x00, 0x1c, 0xf0};
75 
76 static u8 DLINK_ATHEROS_2[3] = {0x00, 0x21, 0x91};
77 
78 static u8 CISCO_BROADCOM[3] = {0x00, 0x17, 0x94};
79 
80 static u8 LINKSYS_MARVELL_4400N[3] = {0x00, 0x14, 0xa4};
81 
82 void HTUpdateDefaultSetting(struct rtllib_device *ieee)
83 {
84  struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
85 
86  pHTInfo->bAcceptAddbaReq = 1;
87 
88  pHTInfo->bRegShortGI20MHz = 1;
89  pHTInfo->bRegShortGI40MHz = 1;
90 
91  pHTInfo->bRegBW40MHz = 1;
92 
93  if (pHTInfo->bRegBW40MHz)
94  pHTInfo->bRegSuppCCK = 1;
95  else
96  pHTInfo->bRegSuppCCK = true;
97 
98  pHTInfo->nAMSDU_MaxSize = 7935UL;
99  pHTInfo->bAMSDU_Support = 0;
100 
101  pHTInfo->bAMPDUEnable = 1;
102  pHTInfo->AMPDU_Factor = 2;
103  pHTInfo->MPDU_Density = 0;
104 
105  pHTInfo->SelfMimoPs = 3;
106  if (pHTInfo->SelfMimoPs == 2)
107  pHTInfo->SelfMimoPs = 3;
108  ieee->bTxDisableRateFallBack = 0;
109  ieee->bTxUseDriverAssingedRate = 0;
110 
111  ieee->bTxEnableFwCalcDur = 1;
112 
113  pHTInfo->bRegRT2RTAggregation = 1;
114 
115  pHTInfo->bRegRxReorderEnable = 1;
116  pHTInfo->RxReorderWinSize = 64;
117  pHTInfo->RxReorderPendingTime = 30;
118 }
119 
120 void HTDebugHTCapability(u8 *CapIE, u8 *TitleString)
121 {
122 
123  static u8 EWC11NHTCap[] = {0x00, 0x90, 0x4c, 0x33};
124  struct ht_capab_ele *pCapELE;
125 
126  if (!memcmp(CapIE, EWC11NHTCap, sizeof(EWC11NHTCap))) {
127  RTLLIB_DEBUG(RTLLIB_DL_HT, "EWC IE in %s()\n", __func__);
128  pCapELE = (struct ht_capab_ele *)(&CapIE[4]);
129  } else
130  pCapELE = (struct ht_capab_ele *)(&CapIE[0]);
131 
132  RTLLIB_DEBUG(RTLLIB_DL_HT, "<Log HT Capability>. Called by %s\n",
133  TitleString);
134 
135  RTLLIB_DEBUG(RTLLIB_DL_HT, "\tSupported Channel Width = %s\n",
136  (pCapELE->ChlWidth) ? "20MHz" : "20/40MHz");
137  RTLLIB_DEBUG(RTLLIB_DL_HT, "\tSupport Short GI for 20M = %s\n",
138  (pCapELE->ShortGI20Mhz) ? "YES" : "NO");
139  RTLLIB_DEBUG(RTLLIB_DL_HT, "\tSupport Short GI for 40M = %s\n",
140  (pCapELE->ShortGI40Mhz) ? "YES" : "NO");
141  RTLLIB_DEBUG(RTLLIB_DL_HT, "\tSupport TX STBC = %s\n",
142  (pCapELE->TxSTBC) ? "YES" : "NO");
143  RTLLIB_DEBUG(RTLLIB_DL_HT, "\tMax AMSDU Size = %s\n",
144  (pCapELE->MaxAMSDUSize) ? "3839" : "7935");
145  RTLLIB_DEBUG(RTLLIB_DL_HT, "\tSupport CCK in 20/40 mode = %s\n",
146  (pCapELE->DssCCk) ? "YES" : "NO");
147  RTLLIB_DEBUG(RTLLIB_DL_HT, "\tMax AMPDU Factor = %d\n",
148  pCapELE->MaxRxAMPDUFactor);
149  RTLLIB_DEBUG(RTLLIB_DL_HT, "\tMPDU Density = %d\n",
150  pCapELE->MPDUDensity);
151  RTLLIB_DEBUG(RTLLIB_DL_HT, "\tMCS Rate Set = [%x][%x][%x][%x][%x]\n",
152  pCapELE->MCS[0], pCapELE->MCS[1], pCapELE->MCS[2],
153  pCapELE->MCS[3], pCapELE->MCS[4]);
154  return;
155 
156 }
157 
158 void HTDebugHTInfo(u8 *InfoIE, u8 *TitleString)
159 {
160 
161  static u8 EWC11NHTInfo[] = {0x00, 0x90, 0x4c, 0x34};
162  struct ht_info_ele *pHTInfoEle;
163 
164  if (!memcmp(InfoIE, EWC11NHTInfo, sizeof(EWC11NHTInfo))) {
165  RTLLIB_DEBUG(RTLLIB_DL_HT, "EWC IE in %s()\n", __func__);
166  pHTInfoEle = (struct ht_info_ele *)(&InfoIE[4]);
167  } else
168  pHTInfoEle = (struct ht_info_ele *)(&InfoIE[0]);
169 
170 
171  RTLLIB_DEBUG(RTLLIB_DL_HT, "<Log HT Information Element>. "
172  "Called by %s\n", TitleString);
173 
174  RTLLIB_DEBUG(RTLLIB_DL_HT, "\tPrimary channel = %d\n",
175  pHTInfoEle->ControlChl);
176  RTLLIB_DEBUG(RTLLIB_DL_HT, "\tSenondary channel =");
177  switch (pHTInfoEle->ExtChlOffset) {
178  case 0:
179  RTLLIB_DEBUG(RTLLIB_DL_HT, "Not Present\n");
180  break;
181  case 1:
182  RTLLIB_DEBUG(RTLLIB_DL_HT, "Upper channel\n");
183  break;
184  case 2:
185  RTLLIB_DEBUG(RTLLIB_DL_HT, "Reserved. Eooro!!!\n");
186  break;
187  case 3:
188  RTLLIB_DEBUG(RTLLIB_DL_HT, "Lower Channel\n");
189  break;
190  }
191  RTLLIB_DEBUG(RTLLIB_DL_HT, "\tRecommended channel width = %s\n",
192  (pHTInfoEle->RecommemdedTxWidth) ? "20Mhz" : "40Mhz");
193 
194  RTLLIB_DEBUG(RTLLIB_DL_HT, "\tOperation mode for protection = ");
195  switch (pHTInfoEle->OptMode) {
196  case 0:
197  RTLLIB_DEBUG(RTLLIB_DL_HT, "No Protection\n");
198  break;
199  case 1:
200  RTLLIB_DEBUG(RTLLIB_DL_HT, "HT non-member protection mode\n");
201  break;
202  case 2:
203  RTLLIB_DEBUG(RTLLIB_DL_HT, "Suggest to open protection\n");
204  break;
205  case 3:
206  RTLLIB_DEBUG(RTLLIB_DL_HT, "HT mixed mode\n");
207  break;
208  }
209 
210  RTLLIB_DEBUG(RTLLIB_DL_HT, "\tBasic MCS Rate Set = [%x][%x][%x][%x]"
211  "[%x]\n", pHTInfoEle->BasicMSC[0], pHTInfoEle->BasicMSC[1],
212  pHTInfoEle->BasicMSC[2], pHTInfoEle->BasicMSC[3],
213  pHTInfoEle->BasicMSC[4]);
214  return;
215 }
216 
217 static bool IsHTHalfNmode40Bandwidth(struct rtllib_device *ieee)
218 {
219  bool retValue = false;
220  struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
221 
222  if (pHTInfo->bCurrentHTSupport == false)
223  retValue = false;
224  else if (pHTInfo->bRegBW40MHz == false)
225  retValue = false;
226  else if (!ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev))
227  retValue = false;
228  else if (((struct ht_capab_ele *)(pHTInfo->PeerHTCapBuf))->ChlWidth)
229  retValue = true;
230  else
231  retValue = false;
232 
233  return retValue;
234 }
235 
236 static bool IsHTHalfNmodeSGI(struct rtllib_device *ieee, bool is40MHz)
237 {
238  bool retValue = false;
239  struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
240 
241  if (pHTInfo->bCurrentHTSupport == false)
242  retValue = false;
243  else if (!ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev))
244  retValue = false;
245  else if (is40MHz) {
246  if (((struct ht_capab_ele *)
247  (pHTInfo->PeerHTCapBuf))->ShortGI40Mhz)
248  retValue = true;
249  else
250  retValue = false;
251  } else {
252  if (((struct ht_capab_ele *)
253  (pHTInfo->PeerHTCapBuf))->ShortGI20Mhz)
254  retValue = true;
255  else
256  retValue = false;
257  }
258 
259  return retValue;
260 }
261 
262 u16 HTHalfMcsToDataRate(struct rtllib_device *ieee, u8 nMcsRate)
263 {
264 
265  u8 is40MHz;
266  u8 isShortGI;
267 
268  is40MHz = (IsHTHalfNmode40Bandwidth(ieee)) ? 1 : 0;
269  isShortGI = (IsHTHalfNmodeSGI(ieee, is40MHz)) ? 1 : 0;
270 
271  return MCS_DATA_RATE[is40MHz][isShortGI][(nMcsRate & 0x7f)];
272 }
273 
274 
275 u16 HTMcsToDataRate(struct rtllib_device *ieee, u8 nMcsRate)
276 {
277  struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
278 
279  u8 is40MHz = (pHTInfo->bCurBW40MHz) ? 1 : 0;
280  u8 isShortGI = (pHTInfo->bCurBW40MHz) ?
281  ((pHTInfo->bCurShortGI40MHz) ? 1 : 0) :
282  ((pHTInfo->bCurShortGI20MHz) ? 1 : 0);
283  return MCS_DATA_RATE[is40MHz][isShortGI][(nMcsRate & 0x7f)];
284 }
285 
286 u16 TxCountToDataRate(struct rtllib_device *ieee, u8 nDataRate)
287 {
288  u16 CCKOFDMRate[12] = {0x02, 0x04, 0x0b, 0x16, 0x0c, 0x12, 0x18,
289  0x24, 0x30, 0x48, 0x60, 0x6c};
290  u8 is40MHz = 0;
291  u8 isShortGI = 0;
292 
293  if (nDataRate < 12) {
294  return CCKOFDMRate[nDataRate];
295  } else {
296  if (nDataRate >= 0x10 && nDataRate <= 0x1f) {
297  is40MHz = 0;
298  isShortGI = 0;
299  } else if (nDataRate >= 0x20 && nDataRate <= 0x2f) {
300  is40MHz = 1;
301  isShortGI = 0;
302 
303  } else if (nDataRate >= 0x30 && nDataRate <= 0x3f) {
304  is40MHz = 0;
305  isShortGI = 1;
306  } else if (nDataRate >= 0x40 && nDataRate <= 0x4f) {
307  is40MHz = 1;
308  isShortGI = 1;
309  }
310  return MCS_DATA_RATE[is40MHz][isShortGI][nDataRate&0xf];
311  }
312 }
313 
314 bool IsHTHalfNmodeAPs(struct rtllib_device *ieee)
315 {
316  bool retValue = false;
317  struct rtllib_network *net = &ieee->current_network;
318 
319  if ((memcmp(net->bssid, BELKINF5D8233V1_RALINK, 3) == 0) ||
320  (memcmp(net->bssid, BELKINF5D82334V3_RALINK, 3) == 0) ||
321  (memcmp(net->bssid, PCI_RALINK, 3) == 0) ||
322  (memcmp(net->bssid, EDIMAX_RALINK, 3) == 0) ||
323  (memcmp(net->bssid, AIRLINK_RALINK, 3) == 0) ||
324  (net->ralink_cap_exist))
325  retValue = true;
326  else if (!memcmp(net->bssid, UNKNOWN_BORADCOM, 3) ||
327  !memcmp(net->bssid, LINKSYSWRT330_LINKSYSWRT300_BROADCOM, 3) ||
328  !memcmp(net->bssid, LINKSYSWRT350_LINKSYSWRT150_BROADCOM, 3) ||
329  (net->broadcom_cap_exist))
330  retValue = true;
331  else if (net->bssht.bdRT2RTAggregation)
332  retValue = true;
333  else
334  retValue = false;
335 
336  return retValue;
337 }
338 
339 static void HTIOTPeerDetermine(struct rtllib_device *ieee)
340 {
341  struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
342  struct rtllib_network *net = &ieee->current_network;
343  if (net->bssht.bdRT2RTAggregation) {
344  pHTInfo->IOTPeer = HT_IOT_PEER_REALTEK;
345  if (net->bssht.RT2RT_HT_Mode & RT_HT_CAP_USE_92SE)
346  pHTInfo->IOTPeer = HT_IOT_PEER_REALTEK_92SE;
347  if (net->bssht.RT2RT_HT_Mode & RT_HT_CAP_USE_SOFTAP)
348  pHTInfo->IOTPeer = HT_IOT_PEER_92U_SOFTAP;
349  } else if (net->broadcom_cap_exist)
350  pHTInfo->IOTPeer = HT_IOT_PEER_BROADCOM;
351  else if (!memcmp(net->bssid, UNKNOWN_BORADCOM, 3) ||
352  !memcmp(net->bssid, LINKSYSWRT330_LINKSYSWRT300_BROADCOM, 3) ||
353  !memcmp(net->bssid, LINKSYSWRT350_LINKSYSWRT150_BROADCOM, 3))
354  pHTInfo->IOTPeer = HT_IOT_PEER_BROADCOM;
355  else if ((memcmp(net->bssid, BELKINF5D8233V1_RALINK, 3) == 0) ||
356  (memcmp(net->bssid, BELKINF5D82334V3_RALINK, 3) == 0) ||
357  (memcmp(net->bssid, PCI_RALINK, 3) == 0) ||
358  (memcmp(net->bssid, EDIMAX_RALINK, 3) == 0) ||
359  (memcmp(net->bssid, AIRLINK_RALINK, 3) == 0) ||
360  net->ralink_cap_exist)
361  pHTInfo->IOTPeer = HT_IOT_PEER_RALINK;
362  else if ((net->atheros_cap_exist) ||
363  (memcmp(net->bssid, DLINK_ATHEROS_1, 3) == 0) ||
364  (memcmp(net->bssid, DLINK_ATHEROS_2, 3) == 0))
365  pHTInfo->IOTPeer = HT_IOT_PEER_ATHEROS;
366  else if ((memcmp(net->bssid, CISCO_BROADCOM, 3) == 0) ||
367  net->cisco_cap_exist)
368  pHTInfo->IOTPeer = HT_IOT_PEER_CISCO;
369  else if ((memcmp(net->bssid, LINKSYS_MARVELL_4400N, 3) == 0) ||
370  net->marvell_cap_exist)
371  pHTInfo->IOTPeer = HT_IOT_PEER_MARVELL;
372  else if (net->airgo_cap_exist)
373  pHTInfo->IOTPeer = HT_IOT_PEER_AIRGO;
374  else
375  pHTInfo->IOTPeer = HT_IOT_PEER_UNKNOWN;
376 
377  RTLLIB_DEBUG(RTLLIB_DL_IOT, "Joseph debug!! IOTPEER: %x\n",
378  pHTInfo->IOTPeer);
379 }
380 
381 static u8 HTIOTActIsDisableMCS14(struct rtllib_device *ieee, u8 *PeerMacAddr)
382 {
383  return 0;
384 }
385 
386 
387 static bool HTIOTActIsDisableMCS15(struct rtllib_device *ieee)
388 {
389  bool retValue = false;
390 
391  return retValue;
392 }
393 
394 static bool HTIOTActIsDisableMCSTwoSpatialStream(struct rtllib_device *ieee)
395 {
396  return false;
397 }
398 
399 static u8 HTIOTActIsDisableEDCATurbo(struct rtllib_device *ieee, u8 *PeerMacAddr)
400 {
401  return false;
402 }
403 
404 static u8 HTIOTActIsMgntUseCCK6M(struct rtllib_device *ieee,
405  struct rtllib_network *network)
406 {
407  u8 retValue = 0;
408 
409 
410  if (ieee->pHTInfo->IOTPeer == HT_IOT_PEER_BROADCOM)
411  retValue = 1;
412 
413  return retValue;
414 }
415 
416 static u8 HTIOTActIsCCDFsync(struct rtllib_device *ieee)
417 {
418  u8 retValue = 0;
419 
420  if (ieee->pHTInfo->IOTPeer == HT_IOT_PEER_BROADCOM)
421  retValue = 1;
422  return retValue;
423 }
424 
425 static void HTIOTActDetermineRaFunc(struct rtllib_device *ieee, bool bPeerRx2ss)
426 {
427  struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
428  pHTInfo->IOTRaFunc &= HT_IOT_RAFUNC_DISABLE_ALL;
429 
430  if (pHTInfo->IOTPeer == HT_IOT_PEER_RALINK && !bPeerRx2ss)
431  pHTInfo->IOTRaFunc |= HT_IOT_RAFUNC_PEER_1R;
432 
433  if (pHTInfo->IOTAction & HT_IOT_ACT_AMSDU_ENABLE)
434  pHTInfo->IOTRaFunc |= HT_IOT_RAFUNC_TX_AMSDU;
435 
436 }
437 
438 void HTResetIOTSetting(struct rt_hi_throughput *pHTInfo)
439 {
440  pHTInfo->IOTAction = 0;
441  pHTInfo->IOTPeer = HT_IOT_PEER_UNKNOWN;
442  pHTInfo->IOTRaFunc = 0;
443 }
444 
445 void HTConstructCapabilityElement(struct rtllib_device *ieee, u8 *posHTCap,
446  u8 *len, u8 IsEncrypt, bool bAssoc)
447 {
448  struct rt_hi_throughput *pHT = ieee->pHTInfo;
449  struct ht_capab_ele *pCapELE = NULL;
450 
451  if ((posHTCap == NULL) || (pHT == NULL)) {
452  RTLLIB_DEBUG(RTLLIB_DL_ERR, "posHTCap or pHTInfo can't be "
453  "null in HTConstructCapabilityElement()\n");
454  return;
455  }
456  memset(posHTCap, 0, *len);
457 
458  if ((bAssoc) && (pHT->ePeerHTSpecVer == HT_SPEC_VER_EWC)) {
459  u8 EWC11NHTCap[] = {0x00, 0x90, 0x4c, 0x33};
460  memcpy(posHTCap, EWC11NHTCap, sizeof(EWC11NHTCap));
461  pCapELE = (struct ht_capab_ele *)&(posHTCap[4]);
462  *len = 30 + 2;
463  } else {
464  pCapELE = (struct ht_capab_ele *)posHTCap;
465  *len = 26 + 2;
466  }
467 
468  pCapELE->AdvCoding = 0;
469  if (ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev))
470  pCapELE->ChlWidth = 0;
471  else
472  pCapELE->ChlWidth = (pHT->bRegBW40MHz ? 1 : 0);
473 
474  pCapELE->MimoPwrSave = pHT->SelfMimoPs;
475  pCapELE->GreenField = 0;
476  pCapELE->ShortGI20Mhz = 1;
477  pCapELE->ShortGI40Mhz = 1;
478 
479  pCapELE->TxSTBC = 1;
480  pCapELE->RxSTBC = 0;
481  pCapELE->DelayBA = 0;
482  pCapELE->MaxAMSDUSize = (MAX_RECEIVE_BUFFER_SIZE >= 7935) ? 1 : 0;
483  pCapELE->DssCCk = ((pHT->bRegBW40MHz) ? (pHT->bRegSuppCCK ? 1 : 0) : 0);
484  pCapELE->PSMP = 0;
485  pCapELE->LSigTxopProtect = 0;
486 
487 
488  RTLLIB_DEBUG(RTLLIB_DL_HT, "TX HT cap/info ele BW=%d MaxAMSDUSize:%d "
489  "DssCCk:%d\n", pCapELE->ChlWidth, pCapELE->MaxAMSDUSize,
490  pCapELE->DssCCk);
491 
492  if (IsEncrypt) {
493  pCapELE->MPDUDensity = 7;
494  pCapELE->MaxRxAMPDUFactor = 2;
495  } else {
496  pCapELE->MaxRxAMPDUFactor = 3;
497  pCapELE->MPDUDensity = 0;
498  }
499 
500  memcpy(pCapELE->MCS, ieee->Regdot11HTOperationalRateSet, 16);
501  memset(&pCapELE->ExtHTCapInfo, 0, 2);
502  memset(pCapELE->TxBFCap, 0, 4);
503 
504  pCapELE->ASCap = 0;
505 
506  if (bAssoc) {
507  if (pHT->IOTAction & HT_IOT_ACT_DISABLE_MCS15)
508  pCapELE->MCS[1] &= 0x7f;
509 
510  if (pHT->IOTAction & HT_IOT_ACT_DISABLE_MCS14)
511  pCapELE->MCS[1] &= 0xbf;
512 
513  if (pHT->IOTAction & HT_IOT_ACT_DISABLE_ALL_2SS)
514  pCapELE->MCS[1] &= 0x00;
515 
516  if (pHT->IOTAction & HT_IOT_ACT_DISABLE_RX_40MHZ_SHORT_GI)
517  pCapELE->ShortGI40Mhz = 0;
518 
519  if (ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev)) {
520  pCapELE->ChlWidth = 0;
521  pCapELE->MCS[1] = 0;
522  }
523  }
524  return;
525 }
526 
527 void HTConstructInfoElement(struct rtllib_device *ieee, u8 *posHTInfo,
528  u8 *len, u8 IsEncrypt)
529 {
530  struct rt_hi_throughput *pHT = ieee->pHTInfo;
531  struct ht_info_ele *pHTInfoEle = (struct ht_info_ele *)posHTInfo;
532  if ((posHTInfo == NULL) || (pHTInfoEle == NULL)) {
533  RTLLIB_DEBUG(RTLLIB_DL_ERR, "posHTInfo or pHTInfoEle can't be "
534  "null in HTConstructInfoElement()\n");
535  return;
536  }
537 
538  memset(posHTInfo, 0, *len);
539  if ((ieee->iw_mode == IW_MODE_ADHOC) ||
540  (ieee->iw_mode == IW_MODE_MASTER)) {
541  pHTInfoEle->ControlChl = ieee->current_network.channel;
542  pHTInfoEle->ExtChlOffset = ((pHT->bRegBW40MHz == false) ?
543  HT_EXTCHNL_OFFSET_NO_EXT :
544  (ieee->current_network.channel <= 6)
545  ? HT_EXTCHNL_OFFSET_UPPER :
546  HT_EXTCHNL_OFFSET_LOWER);
547  pHTInfoEle->RecommemdedTxWidth = pHT->bRegBW40MHz;
548  pHTInfoEle->RIFS = 0;
549  pHTInfoEle->PSMPAccessOnly = 0;
550  pHTInfoEle->SrvIntGranularity = 0;
551  pHTInfoEle->OptMode = pHT->CurrentOpMode;
552  pHTInfoEle->NonGFDevPresent = 0;
553  pHTInfoEle->DualBeacon = 0;
554  pHTInfoEle->SecondaryBeacon = 0;
555  pHTInfoEle->LSigTxopProtectFull = 0;
556  pHTInfoEle->PcoActive = 0;
557  pHTInfoEle->PcoPhase = 0;
558 
559  memset(pHTInfoEle->BasicMSC, 0, 16);
560 
561 
562  *len = 22 + 2;
563 
564  } else {
565  *len = 0;
566  }
567  return;
568 }
569 
570 void HTConstructRT2RTAggElement(struct rtllib_device *ieee, u8 *posRT2RTAgg,
571  u8 *len)
572 {
573  if (posRT2RTAgg == NULL) {
574  RTLLIB_DEBUG(RTLLIB_DL_ERR, "posRT2RTAgg can't be null in "
575  "HTConstructRT2RTAggElement()\n");
576  return;
577  }
578  memset(posRT2RTAgg, 0, *len);
579  *posRT2RTAgg++ = 0x00;
580  *posRT2RTAgg++ = 0xe0;
581  *posRT2RTAgg++ = 0x4c;
582  *posRT2RTAgg++ = 0x02;
583  *posRT2RTAgg++ = 0x01;
584 
585  *posRT2RTAgg = 0x30;
586 
587  if (ieee->bSupportRemoteWakeUp)
588  *posRT2RTAgg |= RT_HT_CAP_USE_WOW;
589 
590  *len = 6 + 2;
591 
592  return;
593 }
594 
595 static u8 HT_PickMCSRate(struct rtllib_device *ieee, u8 *pOperateMCS)
596 {
597  u8 i;
598  if (pOperateMCS == NULL) {
599  RTLLIB_DEBUG(RTLLIB_DL_ERR, "pOperateMCS can't be null"
600  " in HT_PickMCSRate()\n");
601  return false;
602  }
603 
604  switch (ieee->mode) {
605  case IEEE_A:
606  case IEEE_B:
607  case IEEE_G:
608  for (i = 0; i <= 15; i++)
609  pOperateMCS[i] = 0;
610  break;
611  case IEEE_N_24G:
612  case IEEE_N_5G:
613  pOperateMCS[0] &= RATE_ADPT_1SS_MASK;
614  pOperateMCS[1] &= RATE_ADPT_2SS_MASK;
615  pOperateMCS[3] &= RATE_ADPT_MCS32_MASK;
616  break;
617  default:
618  break;
619 
620  }
621 
622  return true;
623 }
624 
625 u8 HTGetHighestMCSRate(struct rtllib_device *ieee, u8 *pMCSRateSet,
626  u8 *pMCSFilter)
627 {
628  u8 i, j;
629  u8 bitMap;
630  u8 mcsRate = 0;
631  u8 availableMcsRate[16];
632  if (pMCSRateSet == NULL || pMCSFilter == NULL) {
633  RTLLIB_DEBUG(RTLLIB_DL_ERR, "pMCSRateSet or pMCSFilter can't "
634  "be null in HTGetHighestMCSRate()\n");
635  return false;
636  }
637  for (i = 0; i < 16; i++)
638  availableMcsRate[i] = pMCSRateSet[i] & pMCSFilter[i];
639 
640  for (i = 0; i < 16; i++) {
641  if (availableMcsRate[i] != 0)
642  break;
643  }
644  if (i == 16)
645  return false;
646 
647  for (i = 0; i < 16; i++) {
648  if (availableMcsRate[i] != 0) {
649  bitMap = availableMcsRate[i];
650  for (j = 0; j < 8; j++) {
651  if ((bitMap%2) != 0) {
652  if (HTMcsToDataRate(ieee, (8*i+j)) >
653  HTMcsToDataRate(ieee, mcsRate))
654  mcsRate = (8*i+j);
655  }
656  bitMap = bitMap>>1;
657  }
658  }
659  }
660  return mcsRate | 0x80;
661 }
662 
663 u8 HTFilterMCSRate(struct rtllib_device *ieee, u8 *pSupportMCS, u8 *pOperateMCS)
664 {
665 
666  u8 i;
667 
668  for (i = 0; i <= 15; i++)
669  pOperateMCS[i] = ieee->Regdot11TxHTOperationalRateSet[i] &
670  pSupportMCS[i];
671 
672  HT_PickMCSRate(ieee, pOperateMCS);
673 
674  if (ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev))
675  pOperateMCS[1] = 0;
676 
677  for (i = 2; i <= 15; i++)
678  pOperateMCS[i] = 0;
679 
680  return true;
681 }
682 
683 void HTSetConnectBwMode(struct rtllib_device *ieee,
684  enum ht_channel_width Bandwidth,
685  enum ht_extchnl_offset Offset);
686 
687 void HTOnAssocRsp(struct rtllib_device *ieee)
688 {
689  struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
690  struct ht_capab_ele *pPeerHTCap = NULL;
691  struct ht_info_ele *pPeerHTInfo = NULL;
692  u16 nMaxAMSDUSize = 0;
693  u8 *pMcsFilter = NULL;
694 
695  static u8 EWC11NHTCap[] = {0x00, 0x90, 0x4c, 0x33};
696  static u8 EWC11NHTInfo[] = {0x00, 0x90, 0x4c, 0x34};
697 
698  if (pHTInfo->bCurrentHTSupport == false) {
699  RTLLIB_DEBUG(RTLLIB_DL_ERR, "<=== HTOnAssocRsp(): "
700  "HT_DISABLE\n");
701  return;
702  }
703  RTLLIB_DEBUG(RTLLIB_DL_HT, "===> HTOnAssocRsp_wq(): HT_ENABLE\n");
704 
705  if (!memcmp(pHTInfo->PeerHTCapBuf, EWC11NHTCap, sizeof(EWC11NHTCap)))
706  pPeerHTCap = (struct ht_capab_ele *)(&pHTInfo->PeerHTCapBuf[4]);
707  else
708  pPeerHTCap = (struct ht_capab_ele *)(pHTInfo->PeerHTCapBuf);
709 
710  if (!memcmp(pHTInfo->PeerHTInfoBuf, EWC11NHTInfo, sizeof(EWC11NHTInfo)))
711  pPeerHTInfo = (struct ht_info_ele *)
712  (&pHTInfo->PeerHTInfoBuf[4]);
713  else
714  pPeerHTInfo = (struct ht_info_ele *)(pHTInfo->PeerHTInfoBuf);
715 
716  RTLLIB_DEBUG_DATA(RTLLIB_DL_DATA | RTLLIB_DL_HT, pPeerHTCap,
717  sizeof(struct ht_capab_ele));
718  HTSetConnectBwMode(ieee, (enum ht_channel_width)(pPeerHTCap->ChlWidth),
719  (enum ht_extchnl_offset)(pPeerHTInfo->ExtChlOffset));
720  pHTInfo->bCurTxBW40MHz = ((pPeerHTInfo->RecommemdedTxWidth == 1) ?
721  true : false);
722 
723  pHTInfo->bCurShortGI20MHz = ((pHTInfo->bRegShortGI20MHz) ?
724  ((pPeerHTCap->ShortGI20Mhz == 1) ?
725  true : false) : false);
726  pHTInfo->bCurShortGI40MHz = ((pHTInfo->bRegShortGI40MHz) ?
727  ((pPeerHTCap->ShortGI40Mhz == 1) ?
728  true : false) : false);
729 
730  pHTInfo->bCurSuppCCK = ((pHTInfo->bRegSuppCCK) ?
731  ((pPeerHTCap->DssCCk == 1) ? true :
732  false) : false);
733 
734 
735  pHTInfo->bCurrent_AMSDU_Support = pHTInfo->bAMSDU_Support;
736 
737  nMaxAMSDUSize = (pPeerHTCap->MaxAMSDUSize == 0) ? 3839 : 7935;
738 
739  if (pHTInfo->nAMSDU_MaxSize > nMaxAMSDUSize)
740  pHTInfo->nCurrent_AMSDU_MaxSize = nMaxAMSDUSize;
741  else
742  pHTInfo->nCurrent_AMSDU_MaxSize = pHTInfo->nAMSDU_MaxSize;
743 
744  pHTInfo->bCurrentAMPDUEnable = pHTInfo->bAMPDUEnable;
745  if (ieee->rtllib_ap_sec_type &&
746  (ieee->rtllib_ap_sec_type(ieee)&(SEC_ALG_WEP|SEC_ALG_TKIP))) {
747  if ((pHTInfo->IOTPeer == HT_IOT_PEER_ATHEROS) ||
748  (pHTInfo->IOTPeer == HT_IOT_PEER_UNKNOWN))
749  pHTInfo->bCurrentAMPDUEnable = false;
750  }
751 
752  if (!pHTInfo->bRegRT2RTAggregation) {
753  if (pHTInfo->AMPDU_Factor > pPeerHTCap->MaxRxAMPDUFactor)
754  pHTInfo->CurrentAMPDUFactor =
755  pPeerHTCap->MaxRxAMPDUFactor;
756  else
757  pHTInfo->CurrentAMPDUFactor = pHTInfo->AMPDU_Factor;
758 
759  } else {
760  if (ieee->current_network.bssht.bdRT2RTAggregation) {
761  if (ieee->pairwise_key_type != KEY_TYPE_NA)
762  pHTInfo->CurrentAMPDUFactor =
763  pPeerHTCap->MaxRxAMPDUFactor;
764  else
765  pHTInfo->CurrentAMPDUFactor = HT_AGG_SIZE_64K;
766  } else {
767  if (pPeerHTCap->MaxRxAMPDUFactor < HT_AGG_SIZE_32K)
768  pHTInfo->CurrentAMPDUFactor =
769  pPeerHTCap->MaxRxAMPDUFactor;
770  else
771  pHTInfo->CurrentAMPDUFactor = HT_AGG_SIZE_32K;
772  }
773  }
774  if (pHTInfo->MPDU_Density > pPeerHTCap->MPDUDensity)
775  pHTInfo->CurrentMPDUDensity = pHTInfo->MPDU_Density;
776  else
777  pHTInfo->CurrentMPDUDensity = pPeerHTCap->MPDUDensity;
778  if (pHTInfo->IOTAction & HT_IOT_ACT_TX_USE_AMSDU_8K) {
779  pHTInfo->bCurrentAMPDUEnable = false;
780  pHTInfo->ForcedAMSDUMode = HT_AGG_FORCE_ENABLE;
781  pHTInfo->ForcedAMSDUMaxSize = 7935;
782  }
783  pHTInfo->bCurRxReorderEnable = pHTInfo->bRegRxReorderEnable;
784 
785  if (pPeerHTCap->MCS[0] == 0)
786  pPeerHTCap->MCS[0] = 0xff;
787 
788  HTIOTActDetermineRaFunc(ieee, ((pPeerHTCap->MCS[1]) != 0));
789 
790  HTFilterMCSRate(ieee, pPeerHTCap->MCS, ieee->dot11HTOperationalRateSet);
791 
792  pHTInfo->PeerMimoPs = pPeerHTCap->MimoPwrSave;
793  if (pHTInfo->PeerMimoPs == MIMO_PS_STATIC)
794  pMcsFilter = MCS_FILTER_1SS;
795  else
796  pMcsFilter = MCS_FILTER_ALL;
797  ieee->HTHighestOperaRate = HTGetHighestMCSRate(ieee,
798  ieee->dot11HTOperationalRateSet, pMcsFilter);
799  ieee->HTCurrentOperaRate = ieee->HTHighestOperaRate;
800 
801  pHTInfo->CurrentOpMode = pPeerHTInfo->OptMode;
802 }
803 
804 void HTInitializeHTInfo(struct rtllib_device *ieee)
805 {
806  struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
807 
808  RTLLIB_DEBUG(RTLLIB_DL_HT, "===========>%s()\n", __func__);
809  pHTInfo->bCurrentHTSupport = false;
810 
811  pHTInfo->bCurBW40MHz = false;
812  pHTInfo->bCurTxBW40MHz = false;
813 
814  pHTInfo->bCurShortGI20MHz = false;
815  pHTInfo->bCurShortGI40MHz = false;
816  pHTInfo->bForcedShortGI = false;
817 
818  pHTInfo->bCurSuppCCK = true;
819 
820  pHTInfo->bCurrent_AMSDU_Support = false;
821  pHTInfo->nCurrent_AMSDU_MaxSize = pHTInfo->nAMSDU_MaxSize;
822  pHTInfo->CurrentMPDUDensity = pHTInfo->MPDU_Density;
823  pHTInfo->CurrentAMPDUFactor = pHTInfo->AMPDU_Factor;
824 
825  memset((void *)(&(pHTInfo->SelfHTCap)), 0,
826  sizeof(pHTInfo->SelfHTCap));
827  memset((void *)(&(pHTInfo->SelfHTInfo)), 0,
828  sizeof(pHTInfo->SelfHTInfo));
829  memset((void *)(&(pHTInfo->PeerHTCapBuf)), 0,
830  sizeof(pHTInfo->PeerHTCapBuf));
831  memset((void *)(&(pHTInfo->PeerHTInfoBuf)), 0,
832  sizeof(pHTInfo->PeerHTInfoBuf));
833 
834  pHTInfo->bSwBwInProgress = false;
835  pHTInfo->ChnlOp = CHNLOP_NONE;
836 
837  pHTInfo->ePeerHTSpecVer = HT_SPEC_VER_IEEE;
838 
839  pHTInfo->bCurrentRT2RTAggregation = false;
840  pHTInfo->bCurrentRT2RTLongSlotTime = false;
841  pHTInfo->RT2RT_HT_Mode = (enum rt_ht_capability)0;
842 
843  pHTInfo->IOTPeer = 0;
844  pHTInfo->IOTAction = 0;
845  pHTInfo->IOTRaFunc = 0;
846 
847  {
848  u8 *RegHTSuppRateSets = &(ieee->RegHTSuppRateSet[0]);
849  RegHTSuppRateSets[0] = 0xFF;
850  RegHTSuppRateSets[1] = 0xFF;
851  RegHTSuppRateSets[4] = 0x01;
852  }
853 }
854 
855 void HTInitializeBssDesc(struct bss_ht *pBssHT)
856 {
857 
858  pBssHT->bdSupportHT = false;
859  memset(pBssHT->bdHTCapBuf, 0, sizeof(pBssHT->bdHTCapBuf));
860  pBssHT->bdHTCapLen = 0;
861  memset(pBssHT->bdHTInfoBuf, 0, sizeof(pBssHT->bdHTInfoBuf));
862  pBssHT->bdHTInfoLen = 0;
863 
864  pBssHT->bdHTSpecVer = HT_SPEC_VER_IEEE;
865 
866  pBssHT->bdRT2RTAggregation = false;
867  pBssHT->bdRT2RTLongSlotTime = false;
868  pBssHT->RT2RT_HT_Mode = (enum rt_ht_capability)0;
869 }
870 
871 void HTResetSelfAndSavePeerSetting(struct rtllib_device *ieee,
872  struct rtllib_network *pNetwork)
873 {
874  struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
875  u8 bIOTAction = 0;
876 
877  RTLLIB_DEBUG(RTLLIB_DL_HT, "==============>%s()\n", __func__);
878  /* unmark bEnableHT flag here is the same reason why unmarked in
879  * function rtllib_softmac_new_net. WB 2008.09.10*/
880  if (pNetwork->bssht.bdSupportHT) {
881  pHTInfo->bCurrentHTSupport = true;
882  pHTInfo->ePeerHTSpecVer = pNetwork->bssht.bdHTSpecVer;
883 
884  if (pNetwork->bssht.bdHTCapLen > 0 &&
885  pNetwork->bssht.bdHTCapLen <= sizeof(pHTInfo->PeerHTCapBuf))
886  memcpy(pHTInfo->PeerHTCapBuf,
887  pNetwork->bssht.bdHTCapBuf,
888  pNetwork->bssht.bdHTCapLen);
889 
890  if (pNetwork->bssht.bdHTInfoLen > 0 &&
891  pNetwork->bssht.bdHTInfoLen <=
892  sizeof(pHTInfo->PeerHTInfoBuf))
893  memcpy(pHTInfo->PeerHTInfoBuf,
894  pNetwork->bssht.bdHTInfoBuf,
895  pNetwork->bssht.bdHTInfoLen);
896 
897  if (pHTInfo->bRegRT2RTAggregation) {
898  pHTInfo->bCurrentRT2RTAggregation =
899  pNetwork->bssht.bdRT2RTAggregation;
900  pHTInfo->bCurrentRT2RTLongSlotTime =
901  pNetwork->bssht.bdRT2RTLongSlotTime;
902  pHTInfo->RT2RT_HT_Mode = pNetwork->bssht.RT2RT_HT_Mode;
903  } else {
904  pHTInfo->bCurrentRT2RTAggregation = false;
905  pHTInfo->bCurrentRT2RTLongSlotTime = false;
906  pHTInfo->RT2RT_HT_Mode = (enum rt_ht_capability)0;
907  }
908 
909  HTIOTPeerDetermine(ieee);
910 
911  pHTInfo->IOTAction = 0;
912  bIOTAction = HTIOTActIsDisableMCS14(ieee, pNetwork->bssid);
913  if (bIOTAction)
914  pHTInfo->IOTAction |= HT_IOT_ACT_DISABLE_MCS14;
915 
916  bIOTAction = HTIOTActIsDisableMCS15(ieee);
917  if (bIOTAction)
918  pHTInfo->IOTAction |= HT_IOT_ACT_DISABLE_MCS15;
919 
920  bIOTAction = HTIOTActIsDisableMCSTwoSpatialStream(ieee);
921  if (bIOTAction)
922  pHTInfo->IOTAction |= HT_IOT_ACT_DISABLE_ALL_2SS;
923 
924 
925  bIOTAction = HTIOTActIsDisableEDCATurbo(ieee, pNetwork->bssid);
926  if (bIOTAction)
927  pHTInfo->IOTAction |= HT_IOT_ACT_DISABLE_EDCA_TURBO;
928 
929  bIOTAction = HTIOTActIsMgntUseCCK6M(ieee, pNetwork);
930  if (bIOTAction)
931  pHTInfo->IOTAction |= HT_IOT_ACT_MGNT_USE_CCK_6M;
932  bIOTAction = HTIOTActIsCCDFsync(ieee);
933  if (bIOTAction)
934  pHTInfo->IOTAction |= HT_IOT_ACT_CDD_FSYNC;
935  } else {
936  pHTInfo->bCurrentHTSupport = false;
937  pHTInfo->bCurrentRT2RTAggregation = false;
938  pHTInfo->bCurrentRT2RTLongSlotTime = false;
939  pHTInfo->RT2RT_HT_Mode = (enum rt_ht_capability)0;
940 
941  pHTInfo->IOTAction = 0;
942  pHTInfo->IOTRaFunc = 0;
943  }
944 }
945 
946 void HT_update_self_and_peer_setting(struct rtllib_device *ieee,
947  struct rtllib_network *pNetwork)
948 {
949  struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
950  struct ht_info_ele *pPeerHTInfo =
951  (struct ht_info_ele *)pNetwork->bssht.bdHTInfoBuf;
952 
953  if (pHTInfo->bCurrentHTSupport) {
954  if (pNetwork->bssht.bdHTInfoLen != 0)
955  pHTInfo->CurrentOpMode = pPeerHTInfo->OptMode;
956  }
957 }
958 EXPORT_SYMBOL(HT_update_self_and_peer_setting);
959 
960 void HTUseDefaultSetting(struct rtllib_device *ieee)
961 {
962  struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
963 
964  if (pHTInfo->bEnableHT) {
965  pHTInfo->bCurrentHTSupport = true;
966  pHTInfo->bCurSuppCCK = pHTInfo->bRegSuppCCK;
967 
968  pHTInfo->bCurBW40MHz = pHTInfo->bRegBW40MHz;
969  pHTInfo->bCurShortGI20MHz = pHTInfo->bRegShortGI20MHz;
970 
971  pHTInfo->bCurShortGI40MHz = pHTInfo->bRegShortGI40MHz;
972 
973  if (ieee->iw_mode == IW_MODE_ADHOC)
974  ieee->current_network.qos_data.active =
975  ieee->current_network.qos_data.supported;
976  pHTInfo->bCurrent_AMSDU_Support = pHTInfo->bAMSDU_Support;
977  pHTInfo->nCurrent_AMSDU_MaxSize = pHTInfo->nAMSDU_MaxSize;
978 
979  pHTInfo->bCurrentAMPDUEnable = pHTInfo->bAMPDUEnable;
980  pHTInfo->CurrentAMPDUFactor = pHTInfo->AMPDU_Factor;
981 
982  pHTInfo->CurrentMPDUDensity = pHTInfo->CurrentMPDUDensity;
983 
984  HTFilterMCSRate(ieee, ieee->Regdot11TxHTOperationalRateSet,
985  ieee->dot11HTOperationalRateSet);
986  ieee->HTHighestOperaRate = HTGetHighestMCSRate(ieee,
987  ieee->dot11HTOperationalRateSet,
988  MCS_FILTER_ALL);
989  ieee->HTCurrentOperaRate = ieee->HTHighestOperaRate;
990 
991  } else {
992  pHTInfo->bCurrentHTSupport = false;
993  }
994  return;
995 }
996 
997 u8 HTCCheck(struct rtllib_device *ieee, u8 *pFrame)
998 {
999  if (ieee->pHTInfo->bCurrentHTSupport) {
1000  if ((IsQoSDataFrame(pFrame) && Frame_Order(pFrame)) == 1) {
1001  RTLLIB_DEBUG(RTLLIB_DL_HT, "HT CONTROL FILED "
1002  "EXIST!!\n");
1003  return true;
1004  }
1005  }
1006  return false;
1007 }
1008 
1009 static void HTSetConnectBwModeCallback(struct rtllib_device *ieee)
1010 {
1011  struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
1012 
1013  RTLLIB_DEBUG(RTLLIB_DL_HT, "======>%s()\n", __func__);
1014  if (pHTInfo->bCurBW40MHz) {
1015  if (pHTInfo->CurSTAExtChnlOffset == HT_EXTCHNL_OFFSET_UPPER)
1016  ieee->set_chan(ieee->dev,
1017  ieee->current_network.channel + 2);
1018  else if (pHTInfo->CurSTAExtChnlOffset ==
1019  HT_EXTCHNL_OFFSET_LOWER)
1020  ieee->set_chan(ieee->dev,
1021  ieee->current_network.channel - 2);
1022  else
1023  ieee->set_chan(ieee->dev,
1024  ieee->current_network.channel);
1025 
1026  ieee->SetBWModeHandler(ieee->dev, HT_CHANNEL_WIDTH_20_40,
1027  pHTInfo->CurSTAExtChnlOffset);
1028  } else {
1029  ieee->set_chan(ieee->dev, ieee->current_network.channel);
1030  ieee->SetBWModeHandler(ieee->dev, HT_CHANNEL_WIDTH_20,
1031  HT_EXTCHNL_OFFSET_NO_EXT);
1032  }
1033 
1034  pHTInfo->bSwBwInProgress = false;
1035 }
1036 
1037 void HTSetConnectBwMode(struct rtllib_device *ieee,
1038  enum ht_channel_width Bandwidth,
1039  enum ht_extchnl_offset Offset)
1040 {
1041  struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
1042 
1043  if (pHTInfo->bRegBW40MHz == false)
1044  return;
1045 
1046  if (ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev))
1047  Bandwidth = HT_CHANNEL_WIDTH_20;
1048 
1049  if (pHTInfo->bSwBwInProgress) {
1050  printk(KERN_INFO "%s: bSwBwInProgress!!\n", __func__);
1051  return;
1052  }
1053  if (Bandwidth == HT_CHANNEL_WIDTH_20_40) {
1054  if (ieee->current_network.channel < 2 &&
1055  Offset == HT_EXTCHNL_OFFSET_LOWER)
1056  Offset = HT_EXTCHNL_OFFSET_NO_EXT;
1057  if (Offset == HT_EXTCHNL_OFFSET_UPPER ||
1058  Offset == HT_EXTCHNL_OFFSET_LOWER) {
1059  pHTInfo->bCurBW40MHz = true;
1060  pHTInfo->CurSTAExtChnlOffset = Offset;
1061  } else {
1062  pHTInfo->bCurBW40MHz = false;
1063  pHTInfo->CurSTAExtChnlOffset = HT_EXTCHNL_OFFSET_NO_EXT;
1064  }
1065  } else {
1066  pHTInfo->bCurBW40MHz = false;
1067  pHTInfo->CurSTAExtChnlOffset = HT_EXTCHNL_OFFSET_NO_EXT;
1068  }
1069 
1070  printk(KERN_INFO "%s():pHTInfo->bCurBW40MHz:%x\n", __func__,
1071  pHTInfo->bCurBW40MHz);
1072 
1073  pHTInfo->bSwBwInProgress = true;
1074 
1075  HTSetConnectBwModeCallback(ieee);
1076 }
Generated on Thu Jan 10 2013 14:30:50 for Linux Kernel by   doxygen 1.8.2