2 *************************************************************************
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8 * (c) Copyright 2002-2007, Ralink Technology, Inc.
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25 *************************************************************************
34 -------- ---------- ----------------------------------------------
35 John Chang 2004-09-01 modified for rt2561/2661
36 Jan Lee 2006-08-01 modified for rt2860 for 802.11n
38 #include "../rt_config.h"
40 #define ADHOC_ENTRY_BEACON_LOST_TIME (2*OS_HZ) // 2 sec
43 ==========================================================================
45 The sync state machine,
47 Sm - pointer to the state machine
49 the state machine looks like the following
51 ==========================================================================
53 VOID SyncStateMachineInit(
56 OUT STATE_MACHINE_FUNC Trans[])
58 StateMachineInit(Sm, Trans, MAX_SYNC_STATE, MAX_SYNC_MSG, (STATE_MACHINE_FUNC)Drop, SYNC_IDLE, SYNC_MACHINE_BASE);
61 StateMachineSetAction(Sm, SYNC_IDLE, MT2_MLME_SCAN_REQ, (STATE_MACHINE_FUNC)MlmeScanReqAction);
62 StateMachineSetAction(Sm, SYNC_IDLE, MT2_MLME_JOIN_REQ, (STATE_MACHINE_FUNC)MlmeJoinReqAction);
63 StateMachineSetAction(Sm, SYNC_IDLE, MT2_MLME_START_REQ, (STATE_MACHINE_FUNC)MlmeStartReqAction);
64 StateMachineSetAction(Sm, SYNC_IDLE, MT2_PEER_BEACON, (STATE_MACHINE_FUNC)PeerBeacon);
65 StateMachineSetAction(Sm, SYNC_IDLE, MT2_PEER_PROBE_REQ, (STATE_MACHINE_FUNC)PeerProbeReqAction);
68 StateMachineSetAction(Sm, JOIN_WAIT_BEACON, MT2_MLME_SCAN_REQ, (STATE_MACHINE_FUNC)InvalidStateWhenScan);
69 StateMachineSetAction(Sm, JOIN_WAIT_BEACON, MT2_MLME_JOIN_REQ, (STATE_MACHINE_FUNC)InvalidStateWhenJoin);
70 StateMachineSetAction(Sm, JOIN_WAIT_BEACON, MT2_MLME_START_REQ, (STATE_MACHINE_FUNC)InvalidStateWhenStart);
71 StateMachineSetAction(Sm, JOIN_WAIT_BEACON, MT2_PEER_BEACON, (STATE_MACHINE_FUNC)PeerBeaconAtJoinAction);
72 StateMachineSetAction(Sm, JOIN_WAIT_BEACON, MT2_BEACON_TIMEOUT, (STATE_MACHINE_FUNC)BeaconTimeoutAtJoinAction);
75 StateMachineSetAction(Sm, SCAN_LISTEN, MT2_MLME_SCAN_REQ, (STATE_MACHINE_FUNC)InvalidStateWhenScan);
76 StateMachineSetAction(Sm, SCAN_LISTEN, MT2_MLME_JOIN_REQ, (STATE_MACHINE_FUNC)InvalidStateWhenJoin);
77 StateMachineSetAction(Sm, SCAN_LISTEN, MT2_MLME_START_REQ, (STATE_MACHINE_FUNC)InvalidStateWhenStart);
78 StateMachineSetAction(Sm, SCAN_LISTEN, MT2_PEER_BEACON, (STATE_MACHINE_FUNC)PeerBeaconAtScanAction);
79 StateMachineSetAction(Sm, SCAN_LISTEN, MT2_PEER_PROBE_RSP, (STATE_MACHINE_FUNC)PeerBeaconAtScanAction);
80 StateMachineSetAction(Sm, SCAN_LISTEN, MT2_SCAN_TIMEOUT, (STATE_MACHINE_FUNC)ScanTimeoutAction);
83 RTMPInitTimer(pAd, &pAd->MlmeAux.BeaconTimer, GET_TIMER_FUNCTION(BeaconTimeout), pAd, FALSE);
84 RTMPInitTimer(pAd, &pAd->MlmeAux.ScanTimer, GET_TIMER_FUNCTION(ScanTimeout), pAd, FALSE);
88 ==========================================================================
90 Beacon timeout handler, executed in timer thread
94 ==========================================================================
97 IN PVOID SystemSpecific1,
98 IN PVOID FunctionContext,
99 IN PVOID SystemSpecific2,
100 IN PVOID SystemSpecific3)
102 RTMP_ADAPTER *pAd = (RTMP_ADAPTER *)FunctionContext;
104 DBGPRINT(RT_DEBUG_TRACE,("SYNC - BeaconTimeout\n"));
106 // Do nothing if the driver is starting halt state.
107 // This might happen when timer already been fired before cancel timer with mlmehalt
108 if (RTMP_TEST_FLAG(pAd, fRTMP_ADAPTER_HALT_IN_PROGRESS))
111 if ((pAd->CommonCfg.BBPCurrentBW == BW_40)
115 AsicSwitchChannel(pAd, pAd->CommonCfg.CentralChannel, FALSE);
116 AsicLockChannel(pAd, pAd->CommonCfg.CentralChannel);
117 RTMP_BBP_IO_READ8_BY_REG_ID(pAd, BBP_R4, &BBPValue);
120 RTMP_BBP_IO_WRITE8_BY_REG_ID(pAd, BBP_R4, BBPValue);
121 DBGPRINT(RT_DEBUG_TRACE, ("SYNC - End of SCAN, restore to 40MHz channel %d, Total BSS[%02d]\n",pAd->CommonCfg.CentralChannel, pAd->ScanTab.BssNr));
124 MlmeEnqueue(pAd, SYNC_STATE_MACHINE, MT2_BEACON_TIMEOUT, 0, NULL);
125 RT28XX_MLME_HANDLER(pAd);
129 ==========================================================================
131 Scan timeout handler, executed in timer thread
133 IRQL = DISPATCH_LEVEL
135 ==========================================================================
138 IN PVOID SystemSpecific1,
139 IN PVOID FunctionContext,
140 IN PVOID SystemSpecific2,
141 IN PVOID SystemSpecific3)
143 RTMP_ADAPTER *pAd = (RTMP_ADAPTER *)FunctionContext;
146 // Do nothing if the driver is starting halt state.
147 // This might happen when timer already been fired before cancel timer with mlmehalt
148 if (RTMP_TEST_FLAG(pAd, fRTMP_ADAPTER_HALT_IN_PROGRESS))
151 if (MlmeEnqueue(pAd, SYNC_STATE_MACHINE, MT2_SCAN_TIMEOUT, 0, NULL))
153 RT28XX_MLME_HANDLER(pAd);
157 // To prevent SyncMachine.CurrState is SCAN_LISTEN forever.
158 pAd->MlmeAux.Channel = 0;
159 ScanNextChannel(pAd);
160 if (pAd->CommonCfg.bWirelessEvent)
162 RTMPSendWirelessEvent(pAd, IW_SCAN_ENQUEUE_FAIL_EVENT_FLAG, pAd->MacTab.Content[BSSID_WCID].Addr, BSS0, 0);
168 ==========================================================================
170 MLME SCAN req state machine procedure
171 ==========================================================================
173 VOID MlmeScanReqAction(
174 IN PRTMP_ADAPTER pAd,
175 IN MLME_QUEUE_ELEM *Elem)
177 UCHAR Ssid[MAX_LEN_OF_SSID], SsidLen, ScanType, BssType, BBPValue = 0;
178 BOOLEAN TimerCancelled;
181 PHEADER_802_11 pHdr80211;
182 PUCHAR pOutBuffer = NULL;
185 // Check the total scan tries for one single OID command
186 // If this is the CCX 2.0 Case, skip that!
187 if ( !RTMP_TEST_FLAG(pAd, fRTMP_ADAPTER_START_UP))
189 DBGPRINT(RT_DEBUG_TRACE, ("SYNC - MlmeScanReqAction before Startup\n"));
193 // Increase the scan retry counters.
194 pAd->StaCfg.ScanCnt++;
197 // first check the parameter sanity
198 if (MlmeScanReqSanity(pAd,
207 // Check for channel load and noise hist request
208 // Suspend MSDU only at scan request, not the last two mentioned
209 if ((ScanType == SCAN_CISCO_NOISE) || (ScanType == SCAN_CISCO_CHANNEL_LOAD))
211 if (pAd->StaCfg.CCXScanChannel != pAd->CommonCfg.Channel)
212 RTMPSuspendMsduTransmission(pAd); // Suspend MSDU transmission here
216 // Suspend MSDU transmission here
217 RTMPSuspendMsduTransmission(pAd);
221 // To prevent data lost.
222 // Send an NULL data with turned PSM bit on to current associated AP before SCAN progress.
223 // And should send an NULL data with turned PSM bit off to AP, when scan progress done
225 if (OPSTATUS_TEST_FLAG(pAd, fOP_STATUS_MEDIA_STATE_CONNECTED) && (INFRA_ON(pAd)))
227 NStatus = MlmeAllocateMemory(pAd, (PVOID)&pOutBuffer);
228 if (NStatus == NDIS_STATUS_SUCCESS)
230 pHdr80211 = (PHEADER_802_11) pOutBuffer;
231 MgtMacHeaderInit(pAd, pHdr80211, SUBTYPE_NULL_FUNC, 1, pAd->CommonCfg.Bssid, pAd->CommonCfg.Bssid);
232 pHdr80211->Duration = 0;
233 pHdr80211->FC.Type = BTYPE_DATA;
234 pHdr80211->FC.PwrMgmt = PWR_SAVE;
236 // Send using priority queue
237 MiniportMMRequest(pAd, 0, pOutBuffer, sizeof(HEADER_802_11));
238 DBGPRINT(RT_DEBUG_TRACE, ("MlmeScanReqAction -- Send PSM Data frame for off channel RM\n"));
239 MlmeFreeMemory(pAd, pOutBuffer);
244 NdisGetSystemUpTime(&Now);
245 pAd->StaCfg.LastScanTime = Now;
246 // reset all the timers
247 RTMPCancelTimer(&pAd->MlmeAux.BeaconTimer, &TimerCancelled);
248 RTMPCancelTimer(&pAd->MlmeAux.ScanTimer, &TimerCancelled);
250 // record desired BSS parameters
251 pAd->MlmeAux.BssType = BssType;
252 pAd->MlmeAux.ScanType = ScanType;
253 pAd->MlmeAux.SsidLen = SsidLen;
254 NdisZeroMemory(pAd->MlmeAux.Ssid, MAX_LEN_OF_SSID);
255 NdisMoveMemory(pAd->MlmeAux.Ssid, Ssid, SsidLen);
257 // start from the first channel
258 pAd->MlmeAux.Channel = FirstChannel(pAd);
260 // Change the scan channel when dealing with CCX beacon report
261 if ((ScanType == SCAN_CISCO_PASSIVE) || (ScanType == SCAN_CISCO_ACTIVE) ||
262 (ScanType == SCAN_CISCO_CHANNEL_LOAD) || (ScanType == SCAN_CISCO_NOISE))
263 pAd->MlmeAux.Channel = pAd->StaCfg.CCXScanChannel;
265 // Let BBP register at 20MHz to do scan
266 RTMP_BBP_IO_READ8_BY_REG_ID(pAd, BBP_R4, &BBPValue);
268 RTMP_BBP_IO_WRITE8_BY_REG_ID(pAd, BBP_R4, BBPValue);
269 DBGPRINT(RT_DEBUG_TRACE, ("SYNC - BBP R4 to 20MHz.l\n"));
270 ScanNextChannel(pAd);
274 DBGPRINT_ERR(("SYNC - MlmeScanReqAction() sanity check fail\n"));
275 pAd->Mlme.SyncMachine.CurrState = SYNC_IDLE;
276 Status = MLME_INVALID_FORMAT;
277 MlmeEnqueue(pAd, MLME_CNTL_STATE_MACHINE, MT2_SCAN_CONF, 2, &Status);
282 ==========================================================================
284 MLME JOIN req state machine procedure
285 ==========================================================================
287 VOID MlmeJoinReqAction(
288 IN PRTMP_ADAPTER pAd,
289 IN MLME_QUEUE_ELEM *Elem)
293 BOOLEAN TimerCancelled;
294 HEADER_802_11 Hdr80211;
297 PUCHAR pOutBuffer = NULL;
298 PUCHAR pSupRate = NULL;
300 PUCHAR pExtRate = NULL;
302 UCHAR ASupRate[] = {0x8C, 0x12, 0x98, 0x24, 0xb0, 0x48, 0x60, 0x6C};
303 UCHAR ASupRateLen = sizeof(ASupRate)/sizeof(UCHAR);
304 MLME_JOIN_REQ_STRUCT *pInfo = (MLME_JOIN_REQ_STRUCT *)(Elem->Msg);
306 DBGPRINT(RT_DEBUG_TRACE, ("SYNC - MlmeJoinReqAction(BSS #%ld)\n", pInfo->BssIdx));
309 // reset all the timers
310 RTMPCancelTimer(&pAd->MlmeAux.ScanTimer, &TimerCancelled);
311 RTMPCancelTimer(&pAd->MlmeAux.BeaconTimer, &TimerCancelled);
313 pBss = &pAd->MlmeAux.SsidBssTab.BssEntry[pInfo->BssIdx];
315 // record the desired SSID & BSSID we're waiting for
316 COPY_MAC_ADDR(pAd->MlmeAux.Bssid, pBss->Bssid);
318 // If AP's SSID is not hidden, it is OK for updating ssid to MlmeAux again.
319 if (pBss->Hidden == 0)
321 NdisMoveMemory(pAd->MlmeAux.Ssid, pBss->Ssid, pBss->SsidLen);
322 pAd->MlmeAux.SsidLen = pBss->SsidLen;
325 pAd->MlmeAux.BssType = pBss->BssType;
326 pAd->MlmeAux.Channel = pBss->Channel;
327 pAd->MlmeAux.CentralChannel = pBss->CentralChannel;
329 // Let BBP register at 20MHz to do scan
330 RTMP_BBP_IO_READ8_BY_REG_ID(pAd, BBP_R4, &BBPValue);
332 RTMP_BBP_IO_WRITE8_BY_REG_ID(pAd, BBP_R4, BBPValue);
333 DBGPRINT(RT_DEBUG_TRACE, ("SYNC - BBP R4 to 20MHz.l\n"));
335 // switch channel and waiting for beacon timer
336 AsicSwitchChannel(pAd, pAd->MlmeAux.Channel, FALSE);
337 AsicLockChannel(pAd, pAd->MlmeAux.Channel);
338 RTMPSetTimer(&pAd->MlmeAux.BeaconTimer, JOIN_TIMEOUT);
342 if (((pAd->CommonCfg.bIEEE80211H == 1) &&
343 (pAd->MlmeAux.Channel > 14) &&
344 RadarChannelCheck(pAd, pAd->MlmeAux.Channel))
348 // We can't send any Probe request frame to meet 802.11h.
350 if (pBss->Hidden == 0)
355 // send probe request
357 NStatus = MlmeAllocateMemory(pAd, &pOutBuffer);
358 if (NStatus == NDIS_STATUS_SUCCESS)
360 if (pAd->MlmeAux.Channel <= 14)
362 pSupRate = pAd->CommonCfg.SupRate;
363 SupRateLen = pAd->CommonCfg.SupRateLen;
364 pExtRate = pAd->CommonCfg.ExtRate;
365 ExtRateLen = pAd->CommonCfg.ExtRateLen;
370 // Overwrite Support Rate, CCK rate are not allowed
373 SupRateLen = ASupRateLen;
377 if (pAd->MlmeAux.BssType == BSS_INFRA)
378 MgtMacHeaderInit(pAd, &Hdr80211, SUBTYPE_PROBE_REQ, 0, pAd->MlmeAux.Bssid, pAd->MlmeAux.Bssid);
380 MgtMacHeaderInit(pAd, &Hdr80211, SUBTYPE_PROBE_REQ, 0, BROADCAST_ADDR, BROADCAST_ADDR);
382 MakeOutgoingFrame(pOutBuffer, &FrameLen,
383 sizeof(HEADER_802_11), &Hdr80211,
385 1, &pAd->MlmeAux.SsidLen,
386 pAd->MlmeAux.SsidLen, pAd->MlmeAux.Ssid,
389 SupRateLen, pSupRate,
395 MakeOutgoingFrame(pOutBuffer + FrameLen, &Tmp,
398 ExtRateLen, pExtRate,
404 MiniportMMRequest(pAd, 0, pOutBuffer, FrameLen);
405 MlmeFreeMemory(pAd, pOutBuffer);
409 DBGPRINT(RT_DEBUG_TRACE, ("SYNC - Switch to ch %d, Wait BEACON from %02x:%02x:%02x:%02x:%02x:%02x\n",
410 pBss->Channel, pBss->Bssid[0], pBss->Bssid[1], pBss->Bssid[2], pBss->Bssid[3], pBss->Bssid[4], pBss->Bssid[5]));
412 pAd->Mlme.SyncMachine.CurrState = JOIN_WAIT_BEACON;
416 ==========================================================================
418 MLME START Request state machine procedure, starting an IBSS
419 ==========================================================================
421 VOID MlmeStartReqAction(
422 IN PRTMP_ADAPTER pAd,
423 IN MLME_QUEUE_ELEM *Elem)
425 UCHAR Ssid[MAX_LEN_OF_SSID], SsidLen;
426 BOOLEAN TimerCancelled;
428 // New for WPA security suites
429 UCHAR VarIE[MAX_VIE_LEN]; // Total VIE length = MAX_VIE_LEN - -5
430 NDIS_802_11_VARIABLE_IEs *pVIE = NULL;
431 LARGE_INTEGER TimeStamp;
435 // Init Variable IE structure
436 pVIE = (PNDIS_802_11_VARIABLE_IEs) VarIE;
438 TimeStamp.u.LowPart = 0;
439 TimeStamp.u.HighPart = 0;
441 if (MlmeStartReqSanity(pAd, Elem->Msg, Elem->MsgLen, Ssid, &SsidLen))
443 // reset all the timers
444 RTMPCancelTimer(&pAd->MlmeAux.ScanTimer, &TimerCancelled);
445 RTMPCancelTimer(&pAd->MlmeAux.BeaconTimer, &TimerCancelled);
448 // Start a new IBSS. All IBSS parameters are decided now....
450 DBGPRINT(RT_DEBUG_TRACE, ("MlmeStartReqAction - Start a new IBSS. All IBSS parameters are decided now.... \n"));
451 pAd->MlmeAux.BssType = BSS_ADHOC;
452 NdisMoveMemory(pAd->MlmeAux.Ssid, Ssid, SsidLen);
453 pAd->MlmeAux.SsidLen = SsidLen;
455 // generate a radom number as BSSID
456 MacAddrRandomBssid(pAd, pAd->MlmeAux.Bssid);
457 DBGPRINT(RT_DEBUG_TRACE, ("MlmeStartReqAction - generate a radom number as BSSID \n"));
459 Privacy = (pAd->StaCfg.WepStatus == Ndis802_11Encryption1Enabled) ||
460 (pAd->StaCfg.WepStatus == Ndis802_11Encryption2Enabled) ||
461 (pAd->StaCfg.WepStatus == Ndis802_11Encryption3Enabled);
462 pAd->MlmeAux.CapabilityInfo = CAP_GENERATE(0,1,Privacy, (pAd->CommonCfg.TxPreamble == Rt802_11PreambleShort), 1, 0);
463 pAd->MlmeAux.BeaconPeriod = pAd->CommonCfg.BeaconPeriod;
464 pAd->MlmeAux.AtimWin = pAd->StaCfg.AtimWin;
465 pAd->MlmeAux.Channel = pAd->CommonCfg.Channel;
467 pAd->CommonCfg.CentralChannel = pAd->CommonCfg.Channel;
468 pAd->MlmeAux.CentralChannel = pAd->CommonCfg.CentralChannel;
470 pAd->MlmeAux.SupRateLen= pAd->CommonCfg.SupRateLen;
471 NdisMoveMemory(pAd->MlmeAux.SupRate, pAd->CommonCfg.SupRate, MAX_LEN_OF_SUPPORTED_RATES);
472 RTMPCheckRates(pAd, pAd->MlmeAux.SupRate, &pAd->MlmeAux.SupRateLen);
473 pAd->MlmeAux.ExtRateLen = pAd->CommonCfg.ExtRateLen;
474 NdisMoveMemory(pAd->MlmeAux.ExtRate, pAd->CommonCfg.ExtRate, MAX_LEN_OF_SUPPORTED_RATES);
475 RTMPCheckRates(pAd, pAd->MlmeAux.ExtRate, &pAd->MlmeAux.ExtRateLen);
477 if (pAd->CommonCfg.PhyMode >= PHY_11ABGN_MIXED)
479 RTMPUpdateHTIE(&pAd->CommonCfg.DesiredHtPhy, &pAd->StaCfg.DesiredHtPhyInfo.MCSSet[0], &pAd->MlmeAux.HtCapability, &pAd->MlmeAux.AddHtInfo);
480 pAd->MlmeAux.HtCapabilityLen = sizeof(HT_CAPABILITY_IE);
481 // Not turn pAd->StaActive.SupportedHtPhy.bHtEnable = TRUE here.
482 DBGPRINT(RT_DEBUG_TRACE, ("SYNC -pAd->StaActive.SupportedHtPhy.bHtEnable = TRUE\n"));
486 pAd->MlmeAux.HtCapabilityLen = 0;
487 pAd->StaActive.SupportedPhyInfo.bHtEnable = FALSE;
489 // temporarily not support QOS in IBSS
490 NdisZeroMemory(&pAd->MlmeAux.APEdcaParm, sizeof(EDCA_PARM));
491 NdisZeroMemory(&pAd->MlmeAux.APQbssLoad, sizeof(QBSS_LOAD_PARM));
492 NdisZeroMemory(&pAd->MlmeAux.APQosCapability, sizeof(QOS_CAPABILITY_PARM));
494 AsicSwitchChannel(pAd, pAd->MlmeAux.Channel, FALSE);
495 AsicLockChannel(pAd, pAd->MlmeAux.Channel);
497 DBGPRINT(RT_DEBUG_TRACE, ("SYNC - MlmeStartReqAction(ch= %d,sup rates= %d, ext rates=%d)\n",
498 pAd->MlmeAux.Channel, pAd->MlmeAux.SupRateLen, pAd->MlmeAux.ExtRateLen));
500 pAd->Mlme.SyncMachine.CurrState = SYNC_IDLE;
501 Status = MLME_SUCCESS;
502 MlmeEnqueue(pAd, MLME_CNTL_STATE_MACHINE, MT2_START_CONF, 2, &Status);
506 DBGPRINT_ERR(("SYNC - MlmeStartReqAction() sanity check fail.\n"));
507 pAd->Mlme.SyncMachine.CurrState = SYNC_IDLE;
508 Status = MLME_INVALID_FORMAT;
509 MlmeEnqueue(pAd, MLME_CNTL_STATE_MACHINE, MT2_START_CONF, 2, &Status);
514 ==========================================================================
516 peer sends beacon back when scanning
517 ==========================================================================
519 VOID PeerBeaconAtScanAction(
520 IN PRTMP_ADAPTER pAd,
521 IN MLME_QUEUE_ELEM *Elem)
523 UCHAR Bssid[MAC_ADDR_LEN], Addr2[MAC_ADDR_LEN];
524 UCHAR Ssid[MAX_LEN_OF_SSID], BssType, Channel, NewChannel,
525 SsidLen, DtimCount, DtimPeriod, BcastFlag, MessageToMe;
527 USHORT BeaconPeriod, AtimWin, CapabilityInfo;
528 PFRAME_802_11 pFrame;
529 LARGE_INTEGER TimeStamp;
531 UCHAR SupRate[MAX_LEN_OF_SUPPORTED_RATES], ExtRate[MAX_LEN_OF_SUPPORTED_RATES];
532 UCHAR SupRateLen, ExtRateLen;
535 UCHAR AironetCellPowerLimit;
537 QBSS_LOAD_PARM QbssLoad;
538 QOS_CAPABILITY_PARM QosCapability;
540 UCHAR VarIE[MAX_VIE_LEN]; // Total VIE length = MAX_VIE_LEN - -5
541 NDIS_802_11_VARIABLE_IEs *pVIE = NULL;
542 HT_CAPABILITY_IE HtCapability;
543 ADD_HT_INFO_IE AddHtInfo; // AP might use this additional ht info IE
544 UCHAR HtCapabilityLen = 0, PreNHtCapabilityLen = 0;
546 UCHAR NewExtChannelOffset = 0xff;
549 pFrame = (PFRAME_802_11) Elem->Msg;
550 // Init Variable IE structure
551 pVIE = (PNDIS_802_11_VARIABLE_IEs) VarIE;
554 RTMPZeroMemory(&HtCapability, sizeof(HtCapability));
555 RTMPZeroMemory(&AddHtInfo, sizeof(ADD_HT_INFO_IE));
557 if (PeerBeaconAndProbeRspSanity(pAd,
583 &AironetCellPowerLimit,
589 &PreNHtCapabilityLen,
593 &NewExtChannelOffset,
600 Idx = BssTableSearch(&pAd->ScanTab, Bssid, Channel);
601 if (Idx != BSS_NOT_FOUND)
602 Rssi = pAd->ScanTab.BssEntry[Idx].Rssi;
604 Rssi = RTMPMaxRssi(pAd, ConvertToRssi(pAd, Elem->Rssi0, RSSI_0), ConvertToRssi(pAd, Elem->Rssi1, RSSI_1), ConvertToRssi(pAd, Elem->Rssi2, RSSI_2));
606 if ((HtCapabilityLen > 0) || (PreNHtCapabilityLen > 0))
607 HtCapabilityLen = SIZE_HT_CAP_IE;
609 if ((pAd->StaCfg.CCXReqType != MSRN_TYPE_UNUSED) && (Channel == pAd->StaCfg.CCXScanChannel))
611 Idx = BssTableSetEntry(pAd, &pAd->StaCfg.CCXBssTab, Bssid, Ssid, SsidLen, BssType, BeaconPeriod,
612 &CfParm, AtimWin, CapabilityInfo, SupRate, SupRateLen,ExtRate, ExtRateLen, &HtCapability,
613 &AddHtInfo, HtCapabilityLen, AddHtInfoLen, NewExtChannelOffset, Channel, Rssi, TimeStamp, CkipFlag,
614 &EdcaParm, &QosCapability, &QbssLoad, LenVIE, pVIE);
615 if (Idx != BSS_NOT_FOUND)
617 NdisMoveMemory(pAd->StaCfg.CCXBssTab.BssEntry[Idx].PTSF, &Elem->Msg[24], 4);
618 NdisMoveMemory(&pAd->StaCfg.CCXBssTab.BssEntry[Idx].TTSF[0], &Elem->TimeStamp.u.LowPart, 4);
619 NdisMoveMemory(&pAd->StaCfg.CCXBssTab.BssEntry[Idx].TTSF[4], &Elem->TimeStamp.u.LowPart, 4);
620 if (pAd->StaCfg.CCXReqType == MSRN_TYPE_BEACON_REQ)
621 AironetAddBeaconReport(pAd, Idx, Elem);
626 Idx = BssTableSetEntry(pAd, &pAd->ScanTab, Bssid, Ssid, SsidLen, BssType, BeaconPeriod,
627 &CfParm, AtimWin, CapabilityInfo, SupRate, SupRateLen, ExtRate, ExtRateLen, &HtCapability,
628 &AddHtInfo, HtCapabilityLen, AddHtInfoLen, NewExtChannelOffset, Channel, Rssi, TimeStamp, CkipFlag,
629 &EdcaParm, &QosCapability, &QbssLoad, LenVIE, pVIE);
631 if (Idx != BSS_NOT_FOUND)
633 NdisMoveMemory(pAd->ScanTab.BssEntry[Idx].PTSF, &Elem->Msg[24], 4);
634 NdisMoveMemory(&pAd->ScanTab.BssEntry[Idx].TTSF[0], &Elem->TimeStamp.u.LowPart, 4);
635 NdisMoveMemory(&pAd->ScanTab.BssEntry[Idx].TTSF[4], &Elem->TimeStamp.u.LowPart, 4);
639 // sanity check fail, ignored
643 ==========================================================================
645 When waiting joining the (I)BSS, beacon received from external
646 ==========================================================================
648 VOID PeerBeaconAtJoinAction(
649 IN PRTMP_ADAPTER pAd,
650 IN MLME_QUEUE_ELEM *Elem)
652 UCHAR Bssid[MAC_ADDR_LEN], Addr2[MAC_ADDR_LEN];
653 UCHAR Ssid[MAX_LEN_OF_SSID], SsidLen, BssType, Channel, MessageToMe,
654 DtimCount, DtimPeriod, BcastFlag, NewChannel;
655 LARGE_INTEGER TimeStamp;
656 USHORT BeaconPeriod, AtimWin, CapabilityInfo;
658 BOOLEAN TimerCancelled;
660 UCHAR SupRate[MAX_LEN_OF_SUPPORTED_RATES], ExtRate[MAX_LEN_OF_SUPPORTED_RATES];
661 UCHAR SupRateLen, ExtRateLen;
664 UCHAR AironetCellPowerLimit;
666 QBSS_LOAD_PARM QbssLoad;
667 QOS_CAPABILITY_PARM QosCapability;
669 UCHAR VarIE[MAX_VIE_LEN]; // Total VIE length = MAX_VIE_LEN - -5
670 NDIS_802_11_VARIABLE_IEs *pVIE = NULL;
673 HT_CAPABILITY_IE HtCapability;
674 ADD_HT_INFO_IE AddHtInfo; // AP might use this additional ht info IE
675 UCHAR HtCapabilityLen = 0, PreNHtCapabilityLen = 0;
677 UCHAR NewExtChannelOffset = 0xff;
678 UCHAR CentralChannel;
680 // Init Variable IE structure
681 pVIE = (PNDIS_802_11_VARIABLE_IEs) VarIE;
683 RTMPZeroMemory(&HtCapability, sizeof(HtCapability));
684 RTMPZeroMemory(&AddHtInfo, sizeof(ADD_HT_INFO_IE));
687 if (PeerBeaconAndProbeRspSanity(pAd,
713 &AironetCellPowerLimit,
719 &PreNHtCapabilityLen,
723 &NewExtChannelOffset,
727 // Disqualify 11b only adhoc when we are in 11g only adhoc mode
728 if ((BssType == BSS_ADHOC) && (pAd->CommonCfg.PhyMode == PHY_11G) && ((SupRateLen+ExtRateLen)< 12))
731 // BEACON from desired BSS/IBSS found. We should be able to decide most
732 // BSS parameters here.
733 // Q. But what happen if this JOIN doesn't conclude a successful ASSOCIATEION?
734 // Do we need to receover back all parameters belonging to previous BSS?
735 // A. Should be not. There's no back-door recover to previous AP. It still need
736 // a new JOIN-AUTH-ASSOC sequence.
737 if (MAC_ADDR_EQUAL(pAd->MlmeAux.Bssid, Bssid))
739 DBGPRINT(RT_DEBUG_TRACE, ("SYNC - receive desired BEACON at JoinWaitBeacon... Channel = %d\n", Channel));
740 RTMPCancelTimer(&pAd->MlmeAux.BeaconTimer, &TimerCancelled);
742 // Update RSSI to prevent No signal display when cards first initialized
743 pAd->StaCfg.RssiSample.LastRssi0 = ConvertToRssi(pAd, Elem->Rssi0, RSSI_0);
744 pAd->StaCfg.RssiSample.LastRssi1 = ConvertToRssi(pAd, Elem->Rssi1, RSSI_1);
745 pAd->StaCfg.RssiSample.LastRssi2 = ConvertToRssi(pAd, Elem->Rssi2, RSSI_2);
746 pAd->StaCfg.RssiSample.AvgRssi0 = pAd->StaCfg.RssiSample.LastRssi0;
747 pAd->StaCfg.RssiSample.AvgRssi0X8 = pAd->StaCfg.RssiSample.AvgRssi0 << 3;
748 pAd->StaCfg.RssiSample.AvgRssi1 = pAd->StaCfg.RssiSample.LastRssi1;
749 pAd->StaCfg.RssiSample.AvgRssi1X8 = pAd->StaCfg.RssiSample.AvgRssi1 << 3;
750 pAd->StaCfg.RssiSample.AvgRssi2 = pAd->StaCfg.RssiSample.LastRssi2;
751 pAd->StaCfg.RssiSample.AvgRssi2X8 = pAd->StaCfg.RssiSample.AvgRssi2 << 3;
754 // We need to check if SSID only set to any, then we can record the current SSID.
755 // Otherwise will cause hidden SSID association failed.
757 if (pAd->MlmeAux.SsidLen == 0)
759 NdisMoveMemory(pAd->MlmeAux.Ssid, Ssid, SsidLen);
760 pAd->MlmeAux.SsidLen = SsidLen;
764 Idx = BssSsidTableSearch(&pAd->ScanTab, Bssid, pAd->MlmeAux.Ssid, pAd->MlmeAux.SsidLen, Channel);
766 if (Idx != BSS_NOT_FOUND)
769 // Multiple SSID case, used correct CapabilityInfo
771 CapabilityInfo = pAd->ScanTab.BssEntry[Idx].CapabilityInfo;
774 NdisMoveMemory(pAd->MlmeAux.Bssid, Bssid, MAC_ADDR_LEN);
775 pAd->MlmeAux.CapabilityInfo = CapabilityInfo & SUPPORTED_CAPABILITY_INFO;
776 pAd->MlmeAux.BssType = BssType;
777 pAd->MlmeAux.BeaconPeriod = BeaconPeriod;
778 pAd->MlmeAux.Channel = Channel;
779 pAd->MlmeAux.AtimWin = AtimWin;
780 pAd->MlmeAux.CfpPeriod = Cf.CfpPeriod;
781 pAd->MlmeAux.CfpMaxDuration = Cf.CfpMaxDuration;
782 pAd->MlmeAux.APRalinkIe = RalinkIe;
784 // Copy AP's supported rate to MlmeAux for creating assoication request
785 // Also filter out not supported rate
786 pAd->MlmeAux.SupRateLen = SupRateLen;
787 NdisMoveMemory(pAd->MlmeAux.SupRate, SupRate, SupRateLen);
788 RTMPCheckRates(pAd, pAd->MlmeAux.SupRate, &pAd->MlmeAux.SupRateLen);
789 pAd->MlmeAux.ExtRateLen = ExtRateLen;
790 NdisMoveMemory(pAd->MlmeAux.ExtRate, ExtRate, ExtRateLen);
791 RTMPCheckRates(pAd, pAd->MlmeAux.ExtRate, &pAd->MlmeAux.ExtRateLen);
793 NdisZeroMemory(pAd->StaActive.SupportedPhyInfo.MCSSet, 16);
795 pAd->MlmeAux.NewExtChannelOffset = NewExtChannelOffset;
796 pAd->MlmeAux.HtCapabilityLen = HtCapabilityLen;
798 // filter out un-supported ht rates
799 if (((HtCapabilityLen > 0) || (PreNHtCapabilityLen > 0)) && (pAd->CommonCfg.PhyMode >= PHY_11ABGN_MIXED))
801 RTMPZeroMemory(&pAd->MlmeAux.HtCapability, SIZE_HT_CAP_IE);
802 RTMPMoveMemory(&pAd->MlmeAux.AddHtInfo, &AddHtInfo, SIZE_ADD_HT_INFO_IE);
804 // StaActive.SupportedHtPhy.MCSSet stores Peer AP's 11n Rx capability
805 NdisMoveMemory(pAd->StaActive.SupportedPhyInfo.MCSSet, HtCapability.MCSSet, 16);
806 pAd->MlmeAux.NewExtChannelOffset = NewExtChannelOffset;
807 pAd->MlmeAux.HtCapabilityLen = SIZE_HT_CAP_IE;
808 pAd->StaActive.SupportedPhyInfo.bHtEnable = TRUE;
809 if (PreNHtCapabilityLen > 0)
810 pAd->StaActive.SupportedPhyInfo.bPreNHt = TRUE;
811 RTMPCheckHt(pAd, BSSID_WCID, &HtCapability, &AddHtInfo);
812 // Copy AP Parameter to StaActive. This is also in LinkUp.
813 DBGPRINT(RT_DEBUG_TRACE, ("PeerBeaconAtJoinAction! (MpduDensity=%d, MaxRAmpduFactor=%d, BW=%d)\n",
814 pAd->StaActive.SupportedHtPhy.MpduDensity, pAd->StaActive.SupportedHtPhy.MaxRAmpduFactor, HtCapability.HtCapInfo.ChannelWidth));
816 if (AddHtInfoLen > 0)
818 CentralChannel = AddHtInfo.ControlChan;
819 // Check again the Bandwidth capability of this AP.
820 if ((AddHtInfo.ControlChan > 2)&& (AddHtInfo.AddHtInfo.ExtChanOffset == EXTCHA_BELOW) && (HtCapability.HtCapInfo.ChannelWidth == BW_40))
822 CentralChannel = AddHtInfo.ControlChan - 2;
824 else if ((AddHtInfo.AddHtInfo.ExtChanOffset == EXTCHA_ABOVE) && (HtCapability.HtCapInfo.ChannelWidth == BW_40))
826 CentralChannel = AddHtInfo.ControlChan + 2;
830 if (pAd->MlmeAux.CentralChannel != CentralChannel)
831 DBGPRINT(RT_DEBUG_ERROR, ("PeerBeaconAtJoinAction HT===>Beacon Central Channel = %d, Control Channel = %d. Mlmeaux CentralChannel = %d\n", CentralChannel, AddHtInfo.ControlChan, pAd->MlmeAux.CentralChannel));
833 DBGPRINT(RT_DEBUG_TRACE, ("PeerBeaconAtJoinAction HT===>Central Channel = %d, Control Channel = %d, .\n", CentralChannel, AddHtInfo.ControlChan));
840 // To prevent error, let legacy AP must have same CentralChannel and Channel.
841 if ((HtCapabilityLen == 0) && (PreNHtCapabilityLen == 0))
842 pAd->MlmeAux.CentralChannel = pAd->MlmeAux.Channel;
844 pAd->StaActive.SupportedPhyInfo.bHtEnable = FALSE;
845 RTMPZeroMemory(&pAd->MlmeAux.HtCapability, SIZE_HT_CAP_IE);
846 RTMPZeroMemory(&pAd->MlmeAux.AddHtInfo, SIZE_ADD_HT_INFO_IE);
849 RTMPUpdateMlmeRate(pAd);
851 // copy QOS related information
852 if ((pAd->CommonCfg.bWmmCapable)
853 || (pAd->CommonCfg.PhyMode >= PHY_11ABGN_MIXED)
856 NdisMoveMemory(&pAd->MlmeAux.APEdcaParm, &EdcaParm, sizeof(EDCA_PARM));
857 NdisMoveMemory(&pAd->MlmeAux.APQbssLoad, &QbssLoad, sizeof(QBSS_LOAD_PARM));
858 NdisMoveMemory(&pAd->MlmeAux.APQosCapability, &QosCapability, sizeof(QOS_CAPABILITY_PARM));
862 NdisZeroMemory(&pAd->MlmeAux.APEdcaParm, sizeof(EDCA_PARM));
863 NdisZeroMemory(&pAd->MlmeAux.APQbssLoad, sizeof(QBSS_LOAD_PARM));
864 NdisZeroMemory(&pAd->MlmeAux.APQosCapability, sizeof(QOS_CAPABILITY_PARM));
867 DBGPRINT(RT_DEBUG_TRACE, ("SYNC - after JOIN, SupRateLen=%d, ExtRateLen=%d\n",
868 pAd->MlmeAux.SupRateLen, pAd->MlmeAux.ExtRateLen));
870 if (AironetCellPowerLimit != 0xFF)
872 //We need to change our TxPower for CCX 2.0 AP Control of Client Transmit Power
873 ChangeToCellPowerLimit(pAd, AironetCellPowerLimit);
875 else //Used the default TX Power Percentage.
876 pAd->CommonCfg.TxPowerPercentage = pAd->CommonCfg.TxPowerDefault;
878 pAd->Mlme.SyncMachine.CurrState = SYNC_IDLE;
879 Status = MLME_SUCCESS;
880 MlmeEnqueue(pAd, MLME_CNTL_STATE_MACHINE, MT2_JOIN_CONF, 2, &Status);
882 // not to me BEACON, ignored
884 // sanity check fail, ignore this frame
888 ==========================================================================
890 receive BEACON from peer
892 IRQL = DISPATCH_LEVEL
894 ==========================================================================
897 IN PRTMP_ADAPTER pAd,
898 IN MLME_QUEUE_ELEM *Elem)
900 UCHAR Bssid[MAC_ADDR_LEN], Addr2[MAC_ADDR_LEN];
901 CHAR Ssid[MAX_LEN_OF_SSID];
903 UCHAR SsidLen, MessageToMe=0, BssType, Channel, NewChannel, index=0;
904 UCHAR DtimCount=0, DtimPeriod=0, BcastFlag=0;
905 USHORT CapabilityInfo, AtimWin, BeaconPeriod;
906 LARGE_INTEGER TimeStamp;
907 USHORT TbttNumToNextWakeUp;
909 UCHAR SupRate[MAX_LEN_OF_SUPPORTED_RATES], ExtRate[MAX_LEN_OF_SUPPORTED_RATES];
910 UCHAR SupRateLen, ExtRateLen;
913 UCHAR AironetCellPowerLimit;
915 QBSS_LOAD_PARM QbssLoad;
916 QOS_CAPABILITY_PARM QosCapability;
918 // New for WPA security suites
919 UCHAR VarIE[MAX_VIE_LEN]; // Total VIE length = MAX_VIE_LEN - -5
920 NDIS_802_11_VARIABLE_IEs *pVIE = NULL;
921 HT_CAPABILITY_IE HtCapability;
922 ADD_HT_INFO_IE AddHtInfo; // AP might use this additional ht info IE
923 UCHAR HtCapabilityLen, PreNHtCapabilityLen;
925 UCHAR NewExtChannelOffset = 0xff;
927 if (!(INFRA_ON(pAd) || ADHOC_ON(pAd)
931 // Init Variable IE structure
932 pVIE = (PNDIS_802_11_VARIABLE_IEs) VarIE;
934 RTMPZeroMemory(&HtCapability, sizeof(HtCapability));
935 RTMPZeroMemory(&AddHtInfo, sizeof(ADD_HT_INFO_IE));
937 if (PeerBeaconAndProbeRspSanity(pAd,
963 &AironetCellPowerLimit,
969 &PreNHtCapabilityLen,
973 &NewExtChannelOffset,
977 BOOLEAN is_my_bssid, is_my_ssid;
980 CHAR RealRssi = RTMPMaxRssi(pAd, ConvertToRssi(pAd, Elem->Rssi0, RSSI_0), ConvertToRssi(pAd, Elem->Rssi1, RSSI_1), ConvertToRssi(pAd, Elem->Rssi2, RSSI_2));
982 is_my_bssid = MAC_ADDR_EQUAL(Bssid, pAd->CommonCfg.Bssid)? TRUE : FALSE;
983 is_my_ssid = SSID_EQUAL(Ssid, SsidLen, pAd->CommonCfg.Ssid, pAd->CommonCfg.SsidLen)? TRUE:FALSE;
986 // ignore BEACON not for my SSID
987 if ((! is_my_ssid) && (! is_my_bssid))
990 // It means STA waits disassoc completely from this AP, ignores this beacon.
991 if (pAd->Mlme.CntlMachine.CurrState == CNTL_WAIT_DISASSOC)
994 // Copy Control channel for this BSSID.
995 if (AddHtInfoLen != 0)
996 Channel = AddHtInfo.ControlChan;
998 if ((HtCapabilityLen > 0) || (PreNHtCapabilityLen > 0))
999 HtCapabilityLen = SIZE_HT_CAP_IE;
1002 // Housekeeping "SsidBssTab" table for later-on ROAMing usage.
1004 Bssidx = BssTableSearch(&pAd->ScanTab, Bssid, Channel);
1005 if (Bssidx == BSS_NOT_FOUND)
1007 // discover new AP of this network, create BSS entry
1008 Bssidx = BssTableSetEntry(pAd, &pAd->ScanTab, Bssid, Ssid, SsidLen, BssType, BeaconPeriod,
1009 &CfParm, AtimWin, CapabilityInfo, SupRate, SupRateLen, ExtRate, ExtRateLen,
1010 &HtCapability, &AddHtInfo,HtCapabilityLen,AddHtInfoLen,NewExtChannelOffset, Channel,
1011 RealRssi, TimeStamp, CkipFlag, &EdcaParm, &QosCapability,
1012 &QbssLoad, LenVIE, pVIE);
1013 if (Bssidx == BSS_NOT_FOUND) // return if BSS table full
1016 NdisMoveMemory(pAd->ScanTab.BssEntry[Bssidx].PTSF, &Elem->Msg[24], 4);
1017 NdisMoveMemory(&pAd->ScanTab.BssEntry[Bssidx].TTSF[0], &Elem->TimeStamp.u.LowPart, 4);
1018 NdisMoveMemory(&pAd->ScanTab.BssEntry[Bssidx].TTSF[4], &Elem->TimeStamp.u.LowPart, 4);
1024 if ((pAd->CommonCfg.bIEEE80211H == 1) && (NewChannel != 0) && (Channel != NewChannel))
1026 // Switching to channel 1 can prevent from rescanning the current channel immediately (by auto reconnection).
1027 // In addition, clear the MLME queue and the scan table to discard the RX packets and previous scanning results.
1028 AsicSwitchChannel(pAd, 1, FALSE);
1029 AsicLockChannel(pAd, 1);
1030 LinkDown(pAd, FALSE);
1031 MlmeQueueInit(&pAd->Mlme.Queue);
1032 BssTableInit(&pAd->ScanTab);
1033 RTMPusecDelay(1000000); // use delay to prevent STA do reassoc
1035 // channel sanity check
1036 for (index = 0 ; index < pAd->ChannelListNum; index++)
1038 if (pAd->ChannelList[index].Channel == NewChannel)
1040 pAd->ScanTab.BssEntry[Bssidx].Channel = NewChannel;
1041 pAd->CommonCfg.Channel = NewChannel;
1042 AsicSwitchChannel(pAd, pAd->CommonCfg.Channel, FALSE);
1043 AsicLockChannel(pAd, pAd->CommonCfg.Channel);
1044 DBGPRINT(RT_DEBUG_TRACE, ("PeerBeacon - STA receive channel switch announcement IE (New Channel =%d)\n", NewChannel));
1049 if (index >= pAd->ChannelListNum)
1051 DBGPRINT_ERR(("PeerBeacon(can not find New Channel=%d in ChannelList[%d]\n", pAd->CommonCfg.Channel, pAd->ChannelListNum));
1055 // if the ssid matched & bssid unmatched, we should select the bssid with large value.
1056 // This might happened when two STA start at the same time
1057 if ((! is_my_bssid) && ADHOC_ON(pAd))
1061 // Add the safeguard against the mismatch of adhoc wep status
1062 if (pAd->StaCfg.WepStatus != pAd->ScanTab.BssEntry[Bssidx].WepStatus)
1065 DBGPRINT(RT_DEBUG_TRACE, ("SYNC - Not matched wep status %d %d\n", pAd->StaCfg.WepStatus, pAd->ScanTab.BssEntry[Bssidx].WepStatus));
1066 DBGPRINT(RT_DEBUG_TRACE, ("bssid=%s\n", pAd->ScanTab.BssEntry[Bssidx].Bssid));
1071 // collapse into the ADHOC network which has bigger BSSID value.
1072 for (i = 0; i < 6; i++)
1074 if (Bssid[i] > pAd->CommonCfg.Bssid[i])
1076 DBGPRINT(RT_DEBUG_TRACE, ("SYNC - merge to the IBSS with bigger BSSID=%02x:%02x:%02x:%02x:%02x:%02x\n",
1077 Bssid[0], Bssid[1], Bssid[2], Bssid[3], Bssid[4], Bssid[5]));
1078 AsicDisableSync(pAd);
1079 COPY_MAC_ADDR(pAd->CommonCfg.Bssid, Bssid);
1080 AsicSetBssid(pAd, pAd->CommonCfg.Bssid);
1081 MakeIbssBeacon(pAd); // re-build BEACON frame
1082 AsicEnableIbssSync(pAd); // copy BEACON frame to on-chip memory
1086 else if (Bssid[i] < pAd->CommonCfg.Bssid[i])
1092 NdisGetSystemUpTime(&Now);
1093 pBss = &pAd->ScanTab.BssEntry[Bssidx];
1094 pBss->Rssi = RealRssi; // lastest RSSI
1095 pBss->LastBeaconRxTime = Now; // last RX timestamp
1098 // BEACON from my BSSID - either IBSS or INFRA network
1104 pAd->StaCfg.DtimCount = DtimCount;
1105 pAd->StaCfg.DtimPeriod = DtimPeriod;
1106 pAd->StaCfg.LastBeaconRxTime = Now;
1109 RxWI.RSSI0 = Elem->Rssi0;
1110 RxWI.RSSI1 = Elem->Rssi1;
1111 RxWI.RSSI2 = Elem->Rssi2;
1113 Update_Rssi_Sample(pAd, &pAd->StaCfg.RssiSample, &RxWI);
1114 if (AironetCellPowerLimit != 0xFF)
1117 // We get the Cisco (ccx) "TxPower Limit" required
1118 // Changed to appropriate TxPower Limit for Ciso Compatible Extensions
1120 ChangeToCellPowerLimit(pAd, AironetCellPowerLimit);
1125 // AironetCellPowerLimit equal to 0xFF means the Cisco (ccx) "TxPower Limit" not exist.
1126 // Used the default TX Power Percentage, that set from UI.
1128 pAd->CommonCfg.TxPowerPercentage = pAd->CommonCfg.TxPowerDefault;
1131 if (ADHOC_ON(pAd) && (CAP_IS_IBSS_ON(CapabilityInfo)))
1133 UCHAR MaxSupportedRateIn500Kbps = 0;
1135 MAC_TABLE_ENTRY *pEntry;
1137 // supported rates array may not be sorted. sort it and find the maximum rate
1138 for (idx=0; idx<SupRateLen; idx++)
1140 if (MaxSupportedRateIn500Kbps < (SupRate[idx] & 0x7f))
1141 MaxSupportedRateIn500Kbps = SupRate[idx] & 0x7f;
1144 for (idx=0; idx<ExtRateLen; idx++)
1146 if (MaxSupportedRateIn500Kbps < (ExtRate[idx] & 0x7f))
1147 MaxSupportedRateIn500Kbps = ExtRate[idx] & 0x7f;
1150 // look up the existing table
1151 pEntry = MacTableLookup(pAd, Addr2);
1153 // Ad-hoc mode is using MAC address as BA session. So we need to continuously find newly joined adhoc station by receiving beacon.
1154 // To prevent always check this, we use wcid == RESERVED_WCID to recognize it as newly joined adhoc station.
1155 if ((ADHOC_ON(pAd) && (Elem->Wcid == RESERVED_WCID)) ||
1156 (pEntry && ((pEntry->LastBeaconRxTime + ADHOC_ENTRY_BEACON_LOST_TIME) < Now)))
1159 // Another adhoc joining, add to our MAC table.
1160 pEntry = MacTableInsertEntry(pAd, Addr2, BSS0, FALSE);
1162 if (StaAddMacTableEntry(pAd, pEntry, MaxSupportedRateIn500Kbps, &HtCapability, HtCapabilityLen, CapabilityInfo) == FALSE)
1164 DBGPRINT(RT_DEBUG_TRACE, ("ADHOC - Add Entry failed.\n"));
1169 (Elem->Wcid == RESERVED_WCID))
1171 idx = pAd->StaCfg.DefaultKeyId;
1172 RT28XX_STA_SECURITY_INFO_ADD(pAd, BSS0, idx, pEntry);
1176 if (pEntry && pEntry->ValidAsCLI)
1177 pEntry->LastBeaconRxTime = Now;
1179 // At least another peer in this IBSS, declare MediaState as CONNECTED
1180 if (!OPSTATUS_TEST_FLAG(pAd, fOP_STATUS_MEDIA_STATE_CONNECTED))
1182 OPSTATUS_SET_FLAG(pAd, fOP_STATUS_MEDIA_STATE_CONNECTED);
1184 pAd->IndicateMediaState = NdisMediaStateConnected;
1185 RTMP_IndicateMediaState(pAd);
1186 pAd->ExtraInfo = GENERAL_LINK_UP;
1187 AsicSetBssid(pAd, pAd->CommonCfg.Bssid);
1189 // 2003/03/12 - john
1190 // Make sure this entry in "ScanTab" table, thus complies to Microsoft's policy that
1191 // "site survey" result should always include the current connected network.
1193 Bssidx = BssTableSearch(&pAd->ScanTab, Bssid, Channel);
1194 if (Bssidx == BSS_NOT_FOUND)
1196 Bssidx = BssTableSetEntry(pAd, &pAd->ScanTab, Bssid, Ssid, SsidLen, BssType, BeaconPeriod,
1197 &CfParm, AtimWin, CapabilityInfo, SupRate, SupRateLen, ExtRate, ExtRateLen, &HtCapability,
1198 &AddHtInfo, HtCapabilityLen, AddHtInfoLen, NewExtChannelOffset, Channel, RealRssi, TimeStamp, 0,
1199 &EdcaParm, &QosCapability, &QbssLoad, LenVIE, pVIE);
1201 DBGPRINT(RT_DEBUG_TRACE, ("ADHOC fOP_STATUS_MEDIA_STATE_CONNECTED.\n"));
1207 BOOLEAN bUseShortSlot, bUseBGProtection;
1209 // decide to use/change to -
1210 // 1. long slot (20 us) or short slot (9 us) time
1211 // 2. turn on/off RTS/CTS and/or CTS-to-self protection
1212 // 3. short preamble
1214 //bUseShortSlot = pAd->CommonCfg.bUseShortSlotTime && CAP_IS_SHORT_SLOT(CapabilityInfo);
1215 bUseShortSlot = CAP_IS_SHORT_SLOT(CapabilityInfo);
1216 if (bUseShortSlot != OPSTATUS_TEST_FLAG(pAd, fOP_STATUS_SHORT_SLOT_INUSED))
1217 AsicSetSlotTime(pAd, bUseShortSlot);
1219 bUseBGProtection = (pAd->CommonCfg.UseBGProtection == 1) || // always use
1220 ((pAd->CommonCfg.UseBGProtection == 0) && ERP_IS_USE_PROTECTION(Erp));
1222 if (pAd->CommonCfg.Channel > 14) // always no BG protection in A-band. falsely happened when switching A/G band to a dual-band AP
1223 bUseBGProtection = FALSE;
1225 if (bUseBGProtection != OPSTATUS_TEST_FLAG(pAd, fOP_STATUS_BG_PROTECTION_INUSED))
1227 if (bUseBGProtection)
1229 OPSTATUS_SET_FLAG(pAd, fOP_STATUS_BG_PROTECTION_INUSED);
1230 AsicUpdateProtect(pAd, pAd->MlmeAux.AddHtInfo.AddHtInfo2.OperaionMode, (OFDMSETPROTECT|CCKSETPROTECT|ALLN_SETPROTECT),FALSE,(pAd->MlmeAux.AddHtInfo.AddHtInfo2.NonGfPresent == 1));
1234 OPSTATUS_CLEAR_FLAG(pAd, fOP_STATUS_BG_PROTECTION_INUSED);
1235 AsicUpdateProtect(pAd, pAd->MlmeAux.AddHtInfo.AddHtInfo2.OperaionMode, (OFDMSETPROTECT|CCKSETPROTECT|ALLN_SETPROTECT),TRUE,(pAd->MlmeAux.AddHtInfo.AddHtInfo2.NonGfPresent == 1));
1238 DBGPRINT(RT_DEBUG_WARN, ("SYNC - AP changed B/G protection to %d\n", bUseBGProtection));
1241 // check Ht protection mode. and adhere to the Non-GF device indication by AP.
1242 if ((AddHtInfoLen != 0) &&
1243 ((AddHtInfo.AddHtInfo2.OperaionMode != pAd->MlmeAux.AddHtInfo.AddHtInfo2.OperaionMode) ||
1244 (AddHtInfo.AddHtInfo2.NonGfPresent != pAd->MlmeAux.AddHtInfo.AddHtInfo2.NonGfPresent)))
1246 pAd->MlmeAux.AddHtInfo.AddHtInfo2.NonGfPresent = AddHtInfo.AddHtInfo2.NonGfPresent;
1247 pAd->MlmeAux.AddHtInfo.AddHtInfo2.OperaionMode = AddHtInfo.AddHtInfo2.OperaionMode;
1248 if (pAd->MlmeAux.AddHtInfo.AddHtInfo2.NonGfPresent == 1)
1250 AsicUpdateProtect(pAd, pAd->MlmeAux.AddHtInfo.AddHtInfo2.OperaionMode, ALLN_SETPROTECT, FALSE, TRUE);
1253 AsicUpdateProtect(pAd, pAd->MlmeAux.AddHtInfo.AddHtInfo2.OperaionMode, ALLN_SETPROTECT, FALSE, FALSE);
1255 DBGPRINT(RT_DEBUG_TRACE, ("SYNC - AP changed N OperaionMode to %d\n", pAd->MlmeAux.AddHtInfo.AddHtInfo2.OperaionMode));
1258 if (OPSTATUS_TEST_FLAG(pAd, fOP_STATUS_SHORT_PREAMBLE_INUSED) &&
1259 ERP_IS_USE_BARKER_PREAMBLE(Erp))
1261 MlmeSetTxPreamble(pAd, Rt802_11PreambleLong);
1262 DBGPRINT(RT_DEBUG_TRACE, ("SYNC - AP forced to use LONG preamble\n"));
1265 if (OPSTATUS_TEST_FLAG(pAd, fOP_STATUS_WMM_INUSED) &&
1266 (EdcaParm.bValid == TRUE) &&
1267 (EdcaParm.EdcaUpdateCount != pAd->CommonCfg.APEdcaParm.EdcaUpdateCount))
1269 DBGPRINT(RT_DEBUG_TRACE, ("SYNC - AP change EDCA parameters(from %d to %d)\n",
1270 pAd->CommonCfg.APEdcaParm.EdcaUpdateCount,
1271 EdcaParm.EdcaUpdateCount));
1272 AsicSetEdcaParm(pAd, &EdcaParm);
1275 // copy QOS related information
1276 NdisMoveMemory(&pAd->CommonCfg.APQbssLoad, &QbssLoad, sizeof(QBSS_LOAD_PARM));
1277 NdisMoveMemory(&pAd->CommonCfg.APQosCapability, &QosCapability, sizeof(QOS_CAPABILITY_PARM));
1280 // only INFRASTRUCTURE mode support power-saving feature
1281 if ((INFRA_ON(pAd) && (pAd->StaCfg.Psm == PWR_SAVE)) || (pAd->CommonCfg.bAPSDForcePowerSave))
1284 // 1. AP has backlogged unicast-to-me frame, stay AWAKE, send PSPOLL
1285 // 2. AP has backlogged broadcast/multicast frame and we want those frames, stay AWAKE
1286 // 3. we have outgoing frames in TxRing or MgmtRing, better stay AWAKE
1287 // 4. Psm change to PWR_SAVE, but AP not been informed yet, we better stay AWAKE
1288 // 5. otherwise, put PHY back to sleep to save battery.
1291 if (pAd->CommonCfg.bAPSDCapable && pAd->CommonCfg.APEdcaParm.bAPSDCapable &&
1292 pAd->CommonCfg.bAPSDAC_BE && pAd->CommonCfg.bAPSDAC_BK && pAd->CommonCfg.bAPSDAC_VI && pAd->CommonCfg.bAPSDAC_VO)
1294 pAd->CommonCfg.bNeedSendTriggerFrame = TRUE;
1297 RT28XX_PS_POLL_ENQUEUE(pAd);
1299 else if (BcastFlag && (DtimCount == 0) && OPSTATUS_TEST_FLAG(pAd, fOP_STATUS_RECEIVE_DTIM))
1302 else if ((pAd->TxSwQueue[QID_AC_BK].Number != 0) ||
1303 (pAd->TxSwQueue[QID_AC_BE].Number != 0) ||
1304 (pAd->TxSwQueue[QID_AC_VI].Number != 0) ||
1305 (pAd->TxSwQueue[QID_AC_VO].Number != 0) ||
1306 (RTMPFreeTXDRequest(pAd, QID_AC_BK, TX_RING_SIZE - 1, &FreeNumber) != NDIS_STATUS_SUCCESS) ||
1307 (RTMPFreeTXDRequest(pAd, QID_AC_BE, TX_RING_SIZE - 1, &FreeNumber) != NDIS_STATUS_SUCCESS) ||
1308 (RTMPFreeTXDRequest(pAd, QID_AC_VI, TX_RING_SIZE - 1, &FreeNumber) != NDIS_STATUS_SUCCESS) ||
1309 (RTMPFreeTXDRequest(pAd, QID_AC_VO, TX_RING_SIZE - 1, &FreeNumber) != NDIS_STATUS_SUCCESS) ||
1310 (RTMPFreeTXDRequest(pAd, QID_MGMT, MGMT_RING_SIZE - 1, &FreeNumber) != NDIS_STATUS_SUCCESS))
1312 // TODO: consider scheduled HCCA. might not be proper to use traditional DTIM-based power-saving scheme
1313 // can we cheat here (i.e. just check MGMT & AC_BE) for better performance?
1317 USHORT NextDtim = DtimCount;
1320 NextDtim = DtimPeriod;
1322 TbttNumToNextWakeUp = pAd->StaCfg.DefaultListenCount;
1323 if (OPSTATUS_TEST_FLAG(pAd, fOP_STATUS_RECEIVE_DTIM) && (TbttNumToNextWakeUp > NextDtim))
1324 TbttNumToNextWakeUp = NextDtim;
1326 if (!OPSTATUS_TEST_FLAG(pAd, fOP_STATUS_DOZE))
1328 AsicSleepThenAutoWakeup(pAd, TbttNumToNextWakeUp);
1333 // not my BSSID, ignore it
1335 // sanity check fail, ignore this frame
1339 ==========================================================================
1341 Receive PROBE REQ from remote peer when operating in IBSS mode
1342 ==========================================================================
1344 VOID PeerProbeReqAction(
1345 IN PRTMP_ADAPTER pAd,
1346 IN MLME_QUEUE_ELEM *Elem)
1348 UCHAR Addr2[MAC_ADDR_LEN];
1349 CHAR Ssid[MAX_LEN_OF_SSID];
1351 UCHAR HtLen, AddHtLen, NewExtLen;
1352 HEADER_802_11 ProbeRspHdr;
1353 NDIS_STATUS NStatus;
1354 PUCHAR pOutBuffer = NULL;
1356 LARGE_INTEGER FakeTimestamp;
1357 UCHAR DsLen = 1, IbssLen = 2;
1358 UCHAR LocalErpIe[3] = {IE_ERP, 1, 0};
1360 USHORT CapabilityInfo;
1361 UCHAR RSNIe = IE_WPA;
1363 if (! ADHOC_ON(pAd))
1366 if (PeerProbeReqSanity(pAd, Elem->Msg, Elem->MsgLen, Addr2, Ssid, &SsidLen))
1368 if ((SsidLen == 0) || SSID_EQUAL(Ssid, SsidLen, pAd->CommonCfg.Ssid, pAd->CommonCfg.SsidLen))
1370 // allocate and send out ProbeRsp frame
1371 NStatus = MlmeAllocateMemory(pAd, &pOutBuffer); //Get an unused nonpaged memory
1372 if (NStatus != NDIS_STATUS_SUCCESS)
1375 //pAd->StaCfg.AtimWin = 0; // ??????
1377 Privacy = (pAd->StaCfg.WepStatus == Ndis802_11Encryption1Enabled) ||
1378 (pAd->StaCfg.WepStatus == Ndis802_11Encryption2Enabled) ||
1379 (pAd->StaCfg.WepStatus == Ndis802_11Encryption3Enabled);
1380 CapabilityInfo = CAP_GENERATE(0, 1, Privacy, (pAd->CommonCfg.TxPreamble == Rt802_11PreambleShort), 0, 0);
1382 MakeOutgoingFrame(pOutBuffer, &FrameLen,
1383 sizeof(HEADER_802_11), &ProbeRspHdr,
1384 TIMESTAMP_LEN, &FakeTimestamp,
1385 2, &pAd->CommonCfg.BeaconPeriod,
1388 1, &pAd->CommonCfg.SsidLen,
1389 pAd->CommonCfg.SsidLen, pAd->CommonCfg.Ssid,
1391 1, &pAd->StaActive.SupRateLen,
1392 pAd->StaActive.SupRateLen, pAd->StaActive.SupRate,
1395 1, &pAd->CommonCfg.Channel,
1398 2, &pAd->StaActive.AtimWin,
1401 if (pAd->StaActive.ExtRateLen)
1404 MakeOutgoingFrame(pOutBuffer + FrameLen, &tmp,
1407 1, &pAd->StaActive.ExtRateLen,
1408 pAd->StaActive.ExtRateLen, &pAd->StaActive.ExtRate,
1413 // If adhoc secruity is set for WPA-None, append the cipher suite IE
1414 if (pAd->StaCfg.AuthMode == Ndis802_11AuthModeWPANone)
1417 MakeOutgoingFrame(pOutBuffer + FrameLen, &tmp,
1419 1, &pAd->StaCfg.RSNIE_Len,
1420 pAd->StaCfg.RSNIE_Len, pAd->StaCfg.RSN_IE,
1425 if (pAd->CommonCfg.PhyMode >= PHY_11ABGN_MIXED)
1428 UCHAR BROADCOM[4] = {0x0, 0x90, 0x4c, 0x33};
1429 HtLen = sizeof(pAd->CommonCfg.HtCapability);
1430 AddHtLen = sizeof(pAd->CommonCfg.AddHTInfo);
1432 //New extension channel offset IE is included in Beacon, Probe Rsp or channel Switch Announcement Frame
1433 if (pAd->bBroadComHT == TRUE)
1435 MakeOutgoingFrame(pOutBuffer + FrameLen, &TmpLen,
1438 pAd->MlmeAux.HtCapabilityLen, &pAd->MlmeAux.HtCapability,
1443 MakeOutgoingFrame(pOutBuffer + FrameLen, &TmpLen,
1446 sizeof(HT_CAPABILITY_IE), &pAd->CommonCfg.HtCapability,
1449 sizeof(ADD_HT_INFO_IE), &pAd->CommonCfg.AddHTInfo,
1452 sizeof(NEW_EXT_CHAN_IE), &pAd->CommonCfg.NewExtChanOffset,
1458 MiniportMMRequest(pAd, 0, pOutBuffer, FrameLen);
1459 MlmeFreeMemory(pAd, pOutBuffer);
1464 VOID BeaconTimeoutAtJoinAction(
1465 IN PRTMP_ADAPTER pAd,
1466 IN MLME_QUEUE_ELEM *Elem)
1469 DBGPRINT(RT_DEBUG_TRACE, ("SYNC - BeaconTimeoutAtJoinAction\n"));
1470 pAd->Mlme.SyncMachine.CurrState = SYNC_IDLE;
1471 Status = MLME_REJ_TIMEOUT;
1472 MlmeEnqueue(pAd, MLME_CNTL_STATE_MACHINE, MT2_JOIN_CONF, 2, &Status);
1476 ==========================================================================
1478 Scan timeout procedure. basically add channel index by 1 and rescan
1479 ==========================================================================
1481 VOID ScanTimeoutAction(
1482 IN PRTMP_ADAPTER pAd,
1483 IN MLME_QUEUE_ELEM *Elem)
1485 pAd->MlmeAux.Channel = NextChannel(pAd, pAd->MlmeAux.Channel);
1487 // Only one channel scanned for CISCO beacon request
1488 if ((pAd->MlmeAux.ScanType == SCAN_CISCO_ACTIVE) ||
1489 (pAd->MlmeAux.ScanType == SCAN_CISCO_PASSIVE) ||
1490 (pAd->MlmeAux.ScanType == SCAN_CISCO_NOISE) ||
1491 (pAd->MlmeAux.ScanType == SCAN_CISCO_CHANNEL_LOAD))
1492 pAd->MlmeAux.Channel = 0;
1494 // this routine will stop if pAd->MlmeAux.Channel == 0
1495 ScanNextChannel(pAd);
1499 ==========================================================================
1501 ==========================================================================
1503 VOID InvalidStateWhenScan(
1504 IN PRTMP_ADAPTER pAd,
1505 IN MLME_QUEUE_ELEM *Elem)
1508 DBGPRINT(RT_DEBUG_TRACE, ("AYNC - InvalidStateWhenScan(state=%ld). Reset SYNC machine\n", pAd->Mlme.SyncMachine.CurrState));
1509 pAd->Mlme.SyncMachine.CurrState = SYNC_IDLE;
1510 Status = MLME_STATE_MACHINE_REJECT;
1511 MlmeEnqueue(pAd, MLME_CNTL_STATE_MACHINE, MT2_SCAN_CONF, 2, &Status);
1515 ==========================================================================
1517 ==========================================================================
1519 VOID InvalidStateWhenJoin(
1520 IN PRTMP_ADAPTER pAd,
1521 IN MLME_QUEUE_ELEM *Elem)
1524 DBGPRINT(RT_DEBUG_TRACE, ("InvalidStateWhenJoin(state=%ld). Reset SYNC machine\n", pAd->Mlme.SyncMachine.CurrState));
1525 pAd->Mlme.SyncMachine.CurrState = SYNC_IDLE;
1526 Status = MLME_STATE_MACHINE_REJECT;
1527 MlmeEnqueue(pAd, MLME_CNTL_STATE_MACHINE, MT2_JOIN_CONF, 2, &Status);
1531 ==========================================================================
1533 ==========================================================================
1535 VOID InvalidStateWhenStart(
1536 IN PRTMP_ADAPTER pAd,
1537 IN MLME_QUEUE_ELEM *Elem)
1540 DBGPRINT(RT_DEBUG_TRACE, ("InvalidStateWhenStart(state=%ld). Reset SYNC machine\n", pAd->Mlme.SyncMachine.CurrState));
1541 pAd->Mlme.SyncMachine.CurrState = SYNC_IDLE;
1542 Status = MLME_STATE_MACHINE_REJECT;
1543 MlmeEnqueue(pAd, MLME_CNTL_STATE_MACHINE, MT2_START_CONF, 2, &Status);
1547 ==========================================================================
1550 IRQL = DISPATCH_LEVEL
1552 ==========================================================================
1555 IN PRTMP_ADAPTER pAd)
1557 if (pAd->StaCfg.WindowsPowerMode == Ndis802_11PowerModeLegacy_PSP)
1558 pAd->PsPollFrame.FC.PwrMgmt = PWR_SAVE;
1559 MiniportMMRequest(pAd, 0, (PUCHAR)&pAd->PsPollFrame, sizeof(PSPOLL_FRAME));
1564 ==========================================================================
1566 ==========================================================================
1568 VOID EnqueueProbeRequest(
1569 IN PRTMP_ADAPTER pAd)
1574 HEADER_802_11 Hdr80211;
1576 DBGPRINT(RT_DEBUG_TRACE, ("force out a ProbeRequest ...\n"));
1578 NState = MlmeAllocateMemory(pAd, &pOutBuffer); //Get an unused nonpaged memory
1579 if (NState == NDIS_STATUS_SUCCESS)
1581 MgtMacHeaderInit(pAd, &Hdr80211, SUBTYPE_PROBE_REQ, 0, BROADCAST_ADDR, BROADCAST_ADDR);
1583 // this ProbeRequest explicitly specify SSID to reduce unwanted ProbeResponse
1584 MakeOutgoingFrame(pOutBuffer, &FrameLen,
1585 sizeof(HEADER_802_11), &Hdr80211,
1587 1, &pAd->CommonCfg.SsidLen,
1588 pAd->CommonCfg.SsidLen, pAd->CommonCfg.Ssid,
1590 1, &pAd->StaActive.SupRateLen,
1591 pAd->StaActive.SupRateLen, pAd->StaActive.SupRate,
1593 MiniportMMRequest(pAd, 0, pOutBuffer, FrameLen);
1594 MlmeFreeMemory(pAd, pOutBuffer);
1599 BOOLEAN ScanRunning(
1600 IN PRTMP_ADAPTER pAd)
1602 return (pAd->Mlme.SyncMachine.CurrState == SCAN_LISTEN) ? TRUE : FALSE;