eHalStatus
limCollectBssDescription(tpAniSirGlobal pMac,
tSirBssDescription *pBssDescr,
tpSirProbeRespBeacon pBPR,
tANI_U8 *pRxPacketInfo)
#endif
{
tANI_U8 *pBody;
tANI_U32 ieLen = 0;
tpSirMacMgmtHdr pHdr;
tANI_U8 channelNum;
tANI_U8 rxChannel;
tANI_U8 rfBand = 0;
pHdr = WDA_GET_RX_MAC_HEADER(pRxPacketInfo);
if (SIR_MAC_B_PR_SSID_OFFSET > WDA_GET_RX_PAYLOAD_LEN(pRxPacketInfo))
{
VOS_ASSERT(WDA_GET_RX_PAYLOAD_LEN(pRxPacketInfo) >= SIR_MAC_B_PR_SSID_OFFSET);
return eHAL_STATUS_FAILURE;
}
ieLen = WDA_GET_RX_PAYLOAD_LEN(pRxPacketInfo) - SIR_MAC_B_PR_SSID_OFFSET;
rxChannel = WDA_GET_RX_CH(pRxPacketInfo);
pBody = WDA_GET_RX_MPDU_DATA(pRxPacketInfo);
rfBand = WDA_GET_RX_RFBAND(pRxPacketInfo);
/**
* Drop all the beacons and probe response without P2P IE during P2P search
*/
if ((NULL != pMac->lim.gpLimMlmScanReq && pMac->lim.gpLimMlmScanReq->p2pSearch) ||
(pMac->fScanOffload && pMac->lim.fOffloadScanPending &&
(pMac->lim.fOffloadScanP2PSearch ||
pMac->lim.fOffloadScanP2PListen)))
{
if (NULL == limGetP2pIEPtr(pMac, (pBody + SIR_MAC_B_PR_SSID_OFFSET), ieLen))
{
limLog( pMac, LOG3, MAC_ADDRESS_STR, MAC_ADDR_ARRAY(pHdr->bssId));
return eHAL_STATUS_FAILURE;
}
}
/**
* Length of BSS desription is without length of
* length itself and length of pointer
* that holds the next BSS description
*/
pBssDescr->length = (tANI_U16)(
sizeof(tSirBssDescription) - sizeof(tANI_U16) -
sizeof(tANI_U32) + ieLen);
// Copy BSS Id
vos_mem_copy((tANI_U8 *) &pBssDescr->bssId,
(tANI_U8 *) pHdr->bssId,
sizeof(tSirMacAddr));
// Copy Timestamp, Beacon Interval and Capability Info
pBssDescr->scanSysTimeMsec = vos_timer_get_system_time();
pBssDescr->timeStamp[0] = pBPR->timeStamp[0];
pBssDescr->timeStamp[1] = pBPR->timeStamp[1];
pBssDescr->beaconInterval = pBPR->beaconInterval;
pBssDescr->capabilityInfo = limGetU16((tANI_U8 *) &pBPR->capabilityInfo);
if(!pBssDescr->beaconInterval )
{
limLog(pMac, LOGW,
FL("Beacon Interval is ZERO, making it to default 100 "
MAC_ADDRESS_STR), MAC_ADDR_ARRAY(pHdr->bssId));
pBssDescr->beaconInterval= 100;
}
/*
* There is a narrow window after Channel Switch msg is sent to HAL and before the AGC is shut
* down and beacons/Probe Rsps can trickle in and we may report the incorrect channel in 5Ghz
* band, so not relying on the 'last Scanned Channel' stored in LIM.
* Instead use the value returned by RXP in BD. This the the same value which HAL programs into
* RXP before every channel switch.
* Right now there is a problem in 5Ghz, where we are receiving beacons from a channel different from
* the currently scanned channel. so incorrect channel is reported to CSR and association does not happen.
* So for now we keep on looking for the channel info in the beacon (DSParamSet IE OR HT Info IE), and only if it
* is not present in the beacon, we go for the channel info present in RXP.
* This fix will work for 5Ghz 11n devices, but for 11a devices, we have to rely on RXP routing flag to get the correct channel.
* So The problem of incorrect channel reporting in 5Ghz will still remain for 11a devices.
*/
pBssDescr->channelId = limGetChannelFromBeacon(pMac, pBPR);
if (pBssDescr->channelId == 0)
{
/* If the channel Id is not retrieved from Beacon, extract the channel from BD */
/* Unmapped the channel.This We have to do since we have done mapping in the hal to
overcome the limitation of RXBD of not able to accomodate the bigger channel number.*/
if ((!rfBand) || IS_5G_BAND(rfBand))
{
rxChannel = limUnmapChannel(rxChannel);
}
if (!rxChannel)
{
rxChannel = pMac->lim.gLimCurrentScanChannelId;
}
pBssDescr->channelId = rxChannel;
}
pBssDescr->channelIdSelf = pBssDescr->channelId;
//set the network type in bss description
channelNum = pBssDescr->channelId;
pBssDescr->nwType = limGetNwType(pMac, channelNum, SIR_MAC_MGMT_FRAME, pBPR);
// Copy RSSI & SINR from BD
PELOG4(limLog(pMac, LOG4, "***********BSS Description for BSSID:*********** ");
sirDumpBuf(pMac, SIR_LIM_MODULE_ID, LOG4, pBssDescr->bssId, 6 );
sirDumpBuf( pMac, SIR_LIM_MODULE_ID, LOG4, (tANI_U8*)pRxPacketInfo, 36 );)
void
limCollectBssDescription(tpAniSirGlobal pMac,
tSirBssDescription *pBssDescr,
tpSirProbeRespBeacon pBPR,
tANI_U8 *pRxPacketInfo)
#endif
{
tANI_U8 *pBody;
tANI_U32 ieLen = 0;
tpSirMacMgmtHdr pHdr;
tANI_U8 channelNum;
tANI_U8 rxChannel;
pHdr = WDA_GET_RX_MAC_HEADER(pRxPacketInfo);
ieLen = WDA_GET_RX_PAYLOAD_LEN(pRxPacketInfo) - SIR_MAC_B_PR_SSID_OFFSET;
rxChannel = WDA_GET_RX_CH(pRxPacketInfo);
pBody = WDA_GET_RX_MPDU_DATA(pRxPacketInfo);
/**
* Length of BSS desription is without length of
* length itself and length of pointer
* that holds the next BSS description
*/
pBssDescr->length = (tANI_U16)(
sizeof(tSirBssDescription) - sizeof(tANI_U16) -
sizeof(tANI_U32) + ieLen);
// Copy BSS Id
palCopyMemory( pMac->hHdd, (tANI_U8 *) &pBssDescr->bssId,
(tANI_U8 *) pHdr->bssId,
sizeof(tSirMacAddr));
// Copy Timestamp, Beacon Interval and Capability Info
pBssDescr->scanSysTimeMsec = vos_timer_get_system_time();
pBssDescr->timeStamp[0] = pBPR->timeStamp[0];
pBssDescr->timeStamp[1] = pBPR->timeStamp[1];
pBssDescr->beaconInterval = pBPR->beaconInterval;
pBssDescr->capabilityInfo = limGetU16((tANI_U8 *) &pBPR->capabilityInfo);
/*
* There is a narrow window after Channel Switch msg is sent to HAL and before the AGC is shut
* down and beacons/Probe Rsps can trickle in and we may report the incorrect channel in 5Ghz
* band, so not relying on the 'last Scanned Channel' stored in LIM.
* Instead use the value returned by RXP in BD. This the the same value which HAL programs into
* RXP before every channel switch.
* Right now there is a problem in 5Ghz, where we are receiving beacons from a channel different from
* the currently scanned channel. so incorrect channel is reported to CSR and association does not happen.
* So for now we keep on looking for the channel info in the beacon (DSParamSet IE OR HT Info IE), and only if it
* is not present in the beacon, we go for the channel info present in RXP.
* This fix will work for 5Ghz 11n devices, but for 11a devices, we have to rely on RXP routing flag to get the correct channel.
* So The problem of incorrect channel reporting in 5Ghz will still remain for 11a devices.
*/
pBssDescr->channelId = limGetChannelFromBeacon(pMac, pBPR);
if (pBssDescr->channelId == 0)
{
/* If the channel Id is not retrieved from Beacon, extract the channel from BD */
/* Unmapped the channel.This We have to do since we have done mapping in the hal to
overcome the limitation of RXBD of not able to accomodate the bigger channel number.*/
if (!( rxChannel = limUnmapChannel(rxChannel)))
{
rxChannel = pMac->lim.gLimCurrentScanChannelId;
}
pBssDescr->channelId = rxChannel;
}
pBssDescr->channelIdSelf = rxChannel;
//set the network type in bss description
channelNum = pBssDescr->channelId;
pBssDescr->nwType = limGetNwType(pMac, channelNum, SIR_MAC_MGMT_FRAME, pBPR);
pBssDescr->aniIndicator = pBPR->propIEinfo.aniIndicator;
// Copy RSSI & SINR from BD
PELOG4(limLog(pMac, LOG4, "***********BSS Description for BSSID:*********** ");
sirDumpBuf(pMac, SIR_LIM_MODULE_ID, LOG4, pBssDescr->bssId, 6 );
sirDumpBuf( pMac, SIR_LIM_MODULE_ID, LOG4, (tANI_U8*)pRxPacketInfo, 36 );)