/* ======================================================================== Description: This routine frees all packets in PSQ that's destined to a specific DA. BCAST/MCAST in DTIMCount=0 case is also handled here, just like a PS-POLL is received from a WSTA which has MAC address FF:FF:FF:FF:FF:FF ======================================================================== */ VOID RtmpHandleRxPsPoll(RTMP_ADAPTER *pAd, UCHAR *pAddr, USHORT wcid, BOOLEAN isActive) { QUEUE_ENTRY *pQEntry; MAC_TABLE_ENTRY *pMacEntry; unsigned long IrqFlags; /* DBGPRINT(RT_DEBUG_TRACE, ("rcv PS-POLL (AID=%d) from %02x:%02x:%02x:%02x:%02x:%02x\n", Aid, PRINT_MAC(pAddr))); */ pMacEntry = &pAd->MacTab.Content[wcid]; if (RTMPEqualMemory(pMacEntry->Addr, pAddr, MAC_ADDR_LEN)) { #ifdef DROP_MASK_SUPPORT /* Disable Drop Mask */ set_drop_mask_per_client(pAd, pMacEntry, 2, 0); #endif /* DROP_MASK_SUPPORT */ #ifdef PS_ENTRY_MAITENANCE pMacEntry->continuous_ps_count = 0; #endif /* PS_ENTRY_MAITENANCE */ /* Sta is change to Power Active stat. Reset ContinueTxFailCnt */ pMacEntry->ContinueTxFailCnt = 0; #ifdef UAPSD_SUPPORT if (UAPSD_MR_IS_ALL_AC_UAPSD(isActive, pMacEntry)) { /* IEEE802.11e spec. 11.2.1.7 Receive operation for STAs in PS mode during the CP When a non-AP QSTA that is using U-APSD and has all ACs delivery-enabled detects that the bit corresponding to its AID is set in the TIM, the non-AP QSTA shall issue a trigger frame or a PS-Poll frame to retrieve the buffered MSDU or management frames. WMM Spec. v1.1a 070601 3.6.2 U-APSD STA Operation 3.6.2.3 In case one or more ACs are not delivery-enabled ACs, the WMM STA may retrieve MSDUs and MMPDUs belonging to those ACs by sending PS-Polls to the WMM AP. In case all ACs are delivery enabled ACs, WMM STA should only use trigger frames to retrieve MSDUs and MMPDUs belonging to those ACs, and it should not send PS-Poll frames. Different definitions in IEEE802.11e and WMM spec. But we follow the WiFi WMM Spec. */ DBGPRINT(RT_DEBUG_TRACE, ("All AC are UAPSD, can not use PS-Poll\n")); return; /* all AC are U-APSD, can not use PS-Poll */ } #endif /* UAPSD_SUPPORT */ RTMP_IRQ_LOCK(&pAd->irq_lock, IrqFlags); if (isActive == FALSE) { if (pMacEntry->PsQueue.Head) { #ifdef UAPSD_SUPPORT UINT32 NumOfOldPsPkt; NumOfOldPsPkt = pAd->TxSwQueue[QID_AC_BE].Number; #endif /* UAPSD_SUPPORT */ pQEntry = RemoveHeadQueue(&pMacEntry->PsQueue); if ( pMacEntry->PsQueue.Number >=1 ) RTMP_SET_PACKET_MOREDATA(RTPKT_TO_OSPKT(pQEntry), TRUE); InsertTailQueueAc(pAd, pMacEntry, &pAd->TxSwQueue[QID_AC_BE], pQEntry); #ifdef UAPSD_SUPPORT /* we need to call RTMPDeQueuePacket() immediately as below */ if (NumOfOldPsPkt != pAd->TxSwQueue[QID_AC_BE].Number) { if (RTMP_GET_PACKET_DHCP(RTPKT_TO_OSPKT(pQEntry)) || RTMP_GET_PACKET_EAPOL(RTPKT_TO_OSPKT(pQEntry)) || RTMP_GET_PACKET_WAI(RTPKT_TO_OSPKT(pQEntry))) { /* These packets will use 1M/6M rate to send. If you use 1M(2.4G)/6M(5G) to send, no statistics count in NICUpdateFifoStaCounters(). So we can not count it for UAPSD; Or the SP will not closed until timeout. */ } else UAPSD_MR_MIX_PS_POLL_RCV(pAd, pMacEntry); } #endif /* UAPSD_SUPPORT */ } else { /* or transmit a (QoS) Null Frame; In addtion, in Station Keep Alive mechanism, we need to send a QoS Null frame to detect the station live status. */ BOOLEAN bQosNull = FALSE; if (CLIENT_STATUS_TEST_FLAG(pMacEntry, fCLIENT_STATUS_WMM_CAPABLE)) bQosNull = TRUE; RtmpEnqueueNullFrame(pAd, pMacEntry->Addr, pMacEntry->CurrTxRate, pMacEntry->Aid, pMacEntry->apidx, bQosNull, TRUE, 0); } } else { #ifdef UAPSD_SUPPORT /* deliver all queued UAPSD packets */ UAPSD_AllPacketDeliver(pAd, pMacEntry); /* end the SP if exists */ UAPSD_MR_ENTRY_RESET(pAd, pMacEntry); #endif /* UAPSD_SUPPORT */ while(pMacEntry->PsQueue.Head) { pQEntry = RemoveHeadQueue(&pMacEntry->PsQueue); InsertTailQueueAc(pAd, pMacEntry, &pAd->TxSwQueue[QID_AC_BE], pQEntry); } } if ((pMacEntry->Aid > 0) && (pMacEntry->Aid < MAX_LEN_OF_MAC_TABLE) && (pMacEntry->PsQueue.Number == 0)) { /* clear corresponding TIM bit because no any PS packet */ #ifdef CONFIG_AP_SUPPORT if(pMacEntry->wdev->wdev_type == WDEV_TYPE_AP) { WLAN_MR_TIM_BIT_CLEAR(pAd, pMacEntry->apidx, pMacEntry->Aid); } #endif /* CONFIG_AP_SUPPORT */ pMacEntry->PsQIdleCount = 0; } RTMP_IRQ_UNLOCK(&pAd->irq_lock, IrqFlags); /* Dequeue outgoing frames from TxSwQueue0..3 queue and process it TODO: 2004-12-27 it's not a good idea to handle "More Data" bit here. because the RTMPDeQueue process doesn't guarantee to de-queue the desired MSDU from the corresponding TxSwQueue/PsQueue when QOS in-used. We should consider "HardTransmt" this MPDU using MGMT queue or things like that. */ RTMPDeQueuePacket(pAd, FALSE, NUM_OF_TX_RING, MAX_TX_PROCESS); } else { DBGPRINT(RT_DEBUG_ERROR,("rcv PS-POLL (AID=%d not match) from %02x:%02x:%02x:%02x:%02x:%02x\n", pMacEntry->Aid, PRINT_MAC(pAddr))); } }
/* ======================================================================== Description: This routine frees all packets in PSQ that's destined to a specific DA. BCAST/MCAST in DTIMCount=0 case is also handled here, just like a PS-POLL is received from a WSTA which has MAC address FF:FF:FF:FF:FF:FF ======================================================================== */ VOID RtmpHandleRxPsPoll(RTMP_ADAPTER *pAd, UCHAR *pAddr, USHORT wcid, BOOLEAN isActive) { MAC_TABLE_ENTRY *pMacEntry; STA_TR_ENTRY *tr_entry = NULL; ASSERT(wcid < MAX_LEN_OF_MAC_TABLE); pMacEntry = &pAd->MacTab.Content[wcid]; tr_entry = &pAd->MacTab.tr_entry[wcid]; if (!RTMPEqualMemory(pMacEntry->Addr, pAddr, MAC_ADDR_LEN)) { DBGPRINT(RT_DEBUG_WARN | DBG_FUNC_PS,("%s(%d) PS-POLL (MAC addr not match) from %02x:%02x:%02x:%02x:%02x:%02x. Why???\n", __FUNCTION__, __LINE__, PRINT_MAC(pAddr))); return; } #ifdef UAPSD_SUPPORT00 if (UAPSD_MR_IS_ALL_AC_UAPSD(isActive, pMacEntry)) { /* IEEE802.11e spec. 11.2.1.7 Receive operation for STAs in PS mode during the CP When a non-AP QSTA that is using U-APSD and has all ACs delivery-enabled detects that the bit corresponding to its AID is set in the TIM, the non-AP QSTA shall issue a trigger frame or a PS-Poll frame to retrieve the buffered MSDU or management frames. WMM Spec. v1.1a 070601 3.6.2 U-APSD STA Operation 3.6.2.3 In case one or more ACs are not delivery-enabled ACs, the WMM STA may retrieve MSDUs and MMPDUs belonging to those ACs by sending PS-Polls to the WMM AP. In case all ACs are delivery enabled ACs, WMM STA should only use trigger frames to retrieve MSDUs and MMPDUs belonging to those ACs, and it should not send PS-Poll frames. Different definitions in IEEE802.11e and WMM spec. But we follow the WiFi WMM Spec. */ DBGPRINT(RT_DEBUG_TRACE, ("All AC are UAPSD, can not use PS-Poll\n")); return; /* all AC are U-APSD, can not use PS-Poll */ } #endif /* UAPSD_SUPPORT */ /* Reset ContinueTxFailCnt */ pMacEntry->ContinueTxFailCnt = 0; pAd->MacTab.tr_entry[pMacEntry->wcid].ContinueTxFailCnt = 0; if (isActive == FALSE) { if (tr_entry->PsDeQWaitCnt == 0) { tr_entry->PsDeQWaitCnt = 1; } else { DBGPRINT(RT_DEBUG_TRACE, ("%s(): : packet not send by HW then ignore other PS-Poll Aid[%d]!\n", __FUNCTION__, pMacEntry->Aid)); return; } } else tr_entry->PsDeQWaitCnt = 0; #ifdef CONFIG_AP_SUPPORT #ifdef MT_MAC if (pAd->chipCap.hif_type == HIF_MT) { MtHandleRxPsPoll(pAd, pAddr, wcid, isActive); } #endif /* MT_MAC */ #if defined(RTMP_MAC) || defined(RLT_MAC) if ((pAd->chipCap.hif_type == HIF_RTMP) || (pAd->chipCap.hif_type == HIF_RLT)) { RalHandleRxPsPoll(pAd, pAddr, wcid, isActive); } #endif /* RTMP_MAC || RLT_MAC */ #endif /* CONFIG_AP_SUPPORT */ }