static void roamingMngr_smScanToConnected(TI_HANDLE hRoamingMngr)
{
roamingMngr_t *pRoamingMngr = (roamingMngr_t*) hRoamingMngr;
apConn_connRequest_t request;
request.dataBufLength = 0;
request.requestType = AP_CONNECT_RETAIN_CURR_AP;
apConn_connectToAP(pRoamingMngr->hAPConnection, NULL , &request , TI_FALSE);
}
static void roamingMngr_smConnectedToHandover(TI_HANDLE hRoamingMngr)
{
roamingMngr_t *pRoamingMngr = (roamingMngr_t*)hRoamingMngr;
TI_STATUS status = TI_OK;
pRoamingMngr->handoverWasPerformed = TI_TRUE;
status= apConn_prepareToRoaming(pRoamingMngr->hAPConnection, pRoamingMngr->roamingTrigger);
if (status == TI_OK) {
apConn_connectToAP(pRoamingMngr->hAPConnection, &(pRoamingMngr->targetAP.newAP), &(pRoamingMngr->targetAP.connRequest), TI_TRUE);
} else {
roamingMngr_smEvent(ROAMING_MANUAL_EVENT_REJECT, hRoamingMngr);
}
}
/**
*
* roamingMngr_smHandover
*
* \b Description:
*
* This procedure is called when handover should be invoked.
* Go over the candidate APs and start handover to each of them.
* If there's no candidate APs, disconnect.
* Handover to the current AP is allowed only if the trigger is
* low quality.
*
* \b ARGS:
*
* I - hRoamingMngr - roamingMngr SM context \n
*
* \b RETURNS:
*
* TI_OK if successful, TI_NOK otherwise.
*
*
*/
static void roamingMngr_smHandover(TI_HANDLE hRoamingMngr)
{
roamingMngr_t *pRoamingMngr;
bssEntry_t *pApToConnect;
apConn_connRequest_t requestToApConn;
pRoamingMngr = (roamingMngr_t*)hRoamingMngr;
if ((pRoamingMngr->handoverWasPerformed) && (pRoamingMngr->candidateApIndex == CURRENT_AP_INDEX))
{ /* Handover with the current AP already failed, Disconnect */
roamingMngr_smEvent(ROAMING_EVENT_FAILURE, pRoamingMngr);
return;
}
if (pRoamingMngr->listOfCandidateAps.numOfNeighborBSS > 0)
{ /* Neighbor APs are the highest priority to Roam */
pRoamingMngr->candidateApIndex =
pRoamingMngr->listOfCandidateAps.neighborBSSList[pRoamingMngr->listOfCandidateAps.numOfNeighborBSS-1];
pRoamingMngr->listOfCandidateAps.numOfNeighborBSS--;
}
else if (pRoamingMngr->listOfCandidateAps.numOfPreAuthBSS > 0)
{ /* Pre-Auth APs are the second priority to Roam */
pRoamingMngr->candidateApIndex =
pRoamingMngr->listOfCandidateAps.preAuthBSSList[pRoamingMngr->listOfCandidateAps.numOfPreAuthBSS-1];
pRoamingMngr->listOfCandidateAps.numOfPreAuthBSS--;
}
else if (pRoamingMngr->listOfCandidateAps.numOfRegularBSS > 0)
{ /* Regular APs are APs that are not pre-authenticated and not Neighbor */
pRoamingMngr->candidateApIndex =
pRoamingMngr->listOfCandidateAps.regularBSSList[pRoamingMngr->listOfCandidateAps.numOfRegularBSS-1];
pRoamingMngr->listOfCandidateAps.numOfRegularBSS--;
}
else
{ /* No Candidate APs */
pRoamingMngr->candidateApIndex = INVALID_CANDIDATE_INDEX;
}
TRACE1(pRoamingMngr->hReport, REPORT_SEVERITY_INFORMATION, "roamingMngr_smHandover, candidateApIndex=%d \n", pRoamingMngr->candidateApIndex);
if (pRoamingMngr->candidateApIndex == INVALID_CANDIDATE_INDEX)
{ /* No cnadidate to Roam to, only the current AP is candidate */
if (pRoamingMngr->roamingTrigger <= ROAMING_TRIGGER_LOW_QUALITY_GROUP)
{ /* If the trigger to Roam is low quality, and there are no candidate APs
to roam to, retain connected to the current AP */
requestToApConn.requestType = (pRoamingMngr->handoverWasPerformed) ? AP_CONNECT_RECONNECT_CURR_AP : AP_CONNECT_RETAIN_CURR_AP;
pRoamingMngr->candidateApIndex = CURRENT_AP_INDEX;
}
else
{ /* Disconnect the BSS, there are no more APs to roam to */
roamingMngr_smEvent(ROAMING_EVENT_FAILURE, pRoamingMngr);
return;
}
}
else
{ /* There is a valid candidate AP */
if (pRoamingMngr->roamingTrigger > ROAMING_TRIGGER_FAST_CONNECT_GROUP)
{ /* Full re-connection should be perfromed */
requestToApConn.requestType = AP_CONNECT_FULL_TO_AP;
}
else
{ /* Fast re-connection should be perfromed */
requestToApConn.requestType = AP_CONNECT_FAST_TO_AP;
}
}
#ifdef TI_DBG
/* For debug */
if (!pRoamingMngr->handoverWasPerformed)
{ /* Take the time before the first handover started */
pRoamingMngr->roamingHandoverStartedTimestamp = os_timeStampMs(pRoamingMngr->hOs);
}
#endif
if (pRoamingMngr->candidateApIndex == CURRENT_AP_INDEX)
{ /* get the current AP */
pApToConnect = apConn_getBSSParams(pRoamingMngr->hAPConnection);
if (pApToConnect == NULL)
return;
}
else
{ /* get the candidate AP */
pRoamingMngr->handoverWasPerformed = TI_TRUE;
pApToConnect = &pRoamingMngr->pListOfAPs->BSSList[pRoamingMngr->candidateApIndex];
}
TRACE3(pRoamingMngr->hReport, REPORT_SEVERITY_INFORMATION, "roamingMngr_smHandover, candidateApIndex=%d, requestType = %d, channel=%d \n", pRoamingMngr->candidateApIndex, requestToApConn.requestType, pApToConnect->channel);
requestToApConn.dataBufLength = 0;
apConn_connectToAP(pRoamingMngr->hAPConnection, pApToConnect, &requestToApConn, TI_TRUE);
}
static void roamingMngr_smHandoverToHandoverConnectEvent (TI_HANDLE hRoamingMngr)
{
roamingMngr_t *pRoamingMngr = (roamingMngr_t*) hRoamingMngr;
apConn_connectToAP(pRoamingMngr->hAPConnection, &(pRoamingMngr->targetAP.newAP), &(pRoamingMngr->targetAP.connRequest), TI_TRUE);
}
