/*
========================================================================
Routine Description:
Handle a alarm.
Arguments:
pAd - WLAN control block pointer
Return Value:
None
Note:
You can use different methods to handle QBSS Load alarm here.
Current methods are:
1. Change 20/40 to 20-only.
2. Change channel to the clear channel.
========================================================================
*/
static VOID QBSS_LoadAlarm(
IN RTMP_ADAPTER *pAd)
{
/* suspend alarm until channel switch */
QBSS_LoadAlarmSuspend(pAd);
pAd->QloadAlarmNumber ++;
/* check if we have already been 20M bandwidth */
#ifdef DOT11_N_SUPPORT
#ifdef DOT11N_DRAFT3
if ((pAd->CommonCfg.AddHTInfo.AddHtInfo.ExtChanOffset != 0) &&
(pAd->CommonCfg.AddHTInfo.AddHtInfo.RecomWidth != 0))
{
MAC_TABLE *pMacTable;
UINT32 StaId;
DBGPRINT(RT_DEBUG_TRACE, ("qbss> Alarm! Change to 20 bw...\n"));
/* disassociate stations without D3 2040Coexistence function */
pMacTable = &pAd->MacTab;
for(StaId=1; StaId<MAX_LEN_OF_MAC_TABLE; StaId++)
{
MAC_TABLE_ENTRY *pEntry = &pMacTable->Content[StaId];
BOOLEAN bDisconnectSta = FALSE;
if (!IS_ENTRY_CLIENT(pEntry))
continue;
/* End of if */
if (pEntry->Sst != SST_ASSOC)
continue;
/* End of if */
if (pEntry->BSS2040CoexistenceMgmtSupport)
bDisconnectSta = TRUE;
/* End of if */
if (bDisconnectSta)
{
/* send wireless event - for ageout */
RTMPSendWirelessEvent(pAd, IW_AGEOUT_EVENT_FLAG, pEntry->Addr, 0, 0);
{
PUCHAR pOutBuffer = NULL;
NDIS_STATUS NStatus;
ULONG FrameLen = 0;
HEADER_802_11 DeAuthHdr;
USHORT Reason;
/* send out a DISASSOC request frame */
NStatus = MlmeAllocateMemory(pAd, &pOutBuffer);
if (NStatus != NDIS_STATUS_SUCCESS)
{
DBGPRINT(RT_DEBUG_TRACE, (" MlmeAllocateMemory fail ..\n"));
/*NdisReleaseSpinLock(&pAd->MacTabLock); */
continue;
}
Reason = REASON_DEAUTH_STA_LEAVING;
MgtMacHeaderInit(pAd, &DeAuthHdr, SUBTYPE_DEAUTH, 0,
pEntry->Addr,
#ifdef P2P_SUPPORT
pAd->ApCfg.MBSSID[pEntry->apidx].Bssid,
#endif /* P2P_SUPPORT */
pAd->ApCfg.MBSSID[pEntry->apidx].Bssid);
MakeOutgoingFrame(pOutBuffer, &FrameLen,
sizeof(HEADER_802_11), &DeAuthHdr,
2, &Reason,
END_OF_ARGS);
MiniportMMRequest(pAd, 0, pOutBuffer, FrameLen);
MlmeFreeMemory(pAd, pOutBuffer);
}
DBGPRINT(RT_DEBUG_TRACE, ("qbss> Alarm! Deauth the station "
"%02x:%02x:%02x:%02x:%02x:%02x\n",
pEntry->Addr[0], pEntry->Addr[1],
pEntry->Addr[2], pEntry->Addr[3],
pEntry->Addr[4], pEntry->Addr[5]));
MacTableDeleteEntry(pAd, pEntry->Aid, pEntry->Addr);
continue;
} /* End of if */
} /* End of for */
/* for 11n */
pAd->CommonCfg.AddHTInfo.AddHtInfo.RecomWidth = 0;
pAd->CommonCfg.AddHTInfo.AddHtInfo.ExtChanOffset = 0;
/* always 20M */
pAd->CommonCfg.RegTransmitSetting.field.BW = BW_20;
/* mark alarm flag */
pAd->FlgQloadAlarm = TRUE;
QBSS_LoadAlarmResume(pAd);
}
else
#endif /* DOT11N_DRAFT3 */
#endif /* DOT11_N_SUPPORT */
{
/* we are in 20MHz bandwidth so try to switch channel */
DBGPRINT(RT_DEBUG_TRACE, ("qbss> Alarm! Switch channel...\n"));
/* send command to switch channel */
RTEnqueueInternalCmd(pAd, CMDTHREAD_CHAN_RESCAN, NULL, 0);
} /* End of if */
} /* End of QBSS_LoadAlarm */
/*
========================================================================
Routine Description:
Handle a alarm.
Arguments:
pAd - WLAN control block pointer
Return Value:
None
Note:
You can use different methods to handle QBSS Load alarm here.
Current methods are:
1. Change 20/40 to 20-only.
2. Change channel to the clear channel.
========================================================================
*/
static VOID QBSS_LoadAlarm(
IN struct rtmp_adapter *pAd)
{
/* suspend alarm until channel switch */
QBSS_LoadAlarmSuspend(pAd);
pAd->QloadAlarmNumber ++;
/* check if we have already been 20M bandwidth */
if ((pAd->CommonCfg.AddHTInfo.AddHtInfo.ExtChanOffset != 0) &&
(pAd->CommonCfg.AddHTInfo.AddHtInfo.RecomWidth != 0))
{
struct mt7612u_mac_table *pMacTable;
uint32_t StaId;
DBGPRINT(RT_DEBUG_TRACE, ("qbss> Alarm! Change to 20 bw...\n"));
/* disassociate stations without D3 2040Coexistence function */
pMacTable = &pAd->MacTab;
for(StaId=1; StaId<MAX_LEN_OF_MAC_TABLE; StaId++)
{
MAC_TABLE_ENTRY *pEntry = &pMacTable->Content[StaId];
bool bDisconnectSta = false;
if (!IS_ENTRY_CLIENT(pEntry))
continue;
if (pEntry->Sst != SST_ASSOC)
continue;
if (pEntry->BSS2040CoexistenceMgmtSupport)
bDisconnectSta = true;
if (bDisconnectSta)
{
/* send wireless event - for ageout */
RTMPSendWirelessEvent(pAd, IW_AGEOUT_EVENT_FLAG, pEntry->Addr, 0, 0);
{
u8 *pOutBuffer = NULL;
int NStatus;
ULONG FrameLen = 0;
HEADER_802_11 DeAuthHdr;
unsigned short Reason;
/* send out a DISASSOC request frame */
pOutBuffer = kmalloc(MGMT_DMA_BUFFER_SIZE, GFP_ATOMIC);
if (pOutBuffer == NULL)
{
DBGPRINT(RT_DEBUG_TRACE, (" kmalloc fail ..\n"));
/*NdisReleaseSpinLock(&pAd->MacTabLock); */
continue;
}
Reason = REASON_DEAUTH_STA_LEAVING;
MgtMacHeaderInit(pAd, &DeAuthHdr, SUBTYPE_DEAUTH, 0,
pEntry->Addr,
pAd->ApCfg.MBSSID[pEntry->apidx].wdev.if_addr,
pAd->ApCfg.MBSSID[pEntry->apidx].wdev.bssid);
MakeOutgoingFrame(pOutBuffer, &FrameLen,
sizeof(HEADER_802_11), &DeAuthHdr,
2, &Reason,
END_OF_ARGS);
MiniportMMRequest(pAd, 0, pOutBuffer, FrameLen);
kfree(pOutBuffer);
}
DBGPRINT(RT_DEBUG_TRACE, ("qbss> Alarm! Deauth the station "
"%02x:%02x:%02x:%02x:%02x:%02x\n",
PRINT_MAC(pEntry->Addr)));
MacTableDeleteEntry(pAd, pEntry->wcid, pEntry->Addr);
continue;
}
}
/* for 11n */
pAd->CommonCfg.AddHTInfo.AddHtInfo.RecomWidth = 0;
pAd->CommonCfg.AddHTInfo.AddHtInfo.ExtChanOffset = 0;
/* always 20M */
pAd->CommonCfg.RegTransmitSetting.field.BW = BW_20;
/* mark alarm flag */
pAd->FlgQloadAlarm = true;
QBSS_LoadAlarmResume(pAd);
}
else
{
/* we are in 20MHz bandwidth so try to switch channel */
DBGPRINT(RT_DEBUG_TRACE, ("qbss> Alarm! Switch channel...\n"));
/* send command to switch channel */
RTEnqueueInternalCmd(pAd, CMDTHREAD_CHAN_RESCAN, NULL, 0);
}
}
