/**
*
* roamingMngr_smRoamTrigger
*
* \b Description:
*
* This procedure is called when an Roaming event occurs: BSS LOSS, LOW Quality etc.
* Performs the following:
* - If Roaming is disabled, ignore.
* - Indicate Driver that Roaming process is starting
* - Get the BSS list from the Scan Manager.
* - If the list is not empty, start SELECTION
* - If the list is empty, start SCANNING. The type of scan is decided
* according to the Neigbor APs existence.
*
* \b ARGS:
*
* I - hRoamingMngr - roamingMngr SM context \n
*
* \b RETURNS:
*
* TI_OK if successful, TI_NOK otherwise.
*
*
*/
static void roamingMngr_smRoamTrigger(TI_HANDLE hRoamingMngr)
{
roamingMngr_t *pRoamingMngr;
roamingMngr_smEvents roamingEvent;
pRoamingMngr = (roamingMngr_t*)hRoamingMngr;
TRACE1(pRoamingMngr->hReport, REPORT_SEVERITY_INFORMATION, "roamingMngr_smRoamTrigger, enableDisable = %d\n",pRoamingMngr->roamingMngrConfig.enableDisable);
if (!pRoamingMngr->roamingMngrConfig.enableDisable) {
/* Ignore any other Roaming event when Roaming is disabled */
TRACE0(pRoamingMngr->hReport, REPORT_SEVERITY_ERROR, "roamingMngr_smRoamTrigger, when Roaming is disabled\n");
return;
}
/* Indicate the driver that Roaming process is starting */
apConn_prepareToRoaming(pRoamingMngr->hAPConnection, pRoamingMngr->roamingTrigger);
/* Get the current BSSIDs from ScanMngr */
pRoamingMngr->pListOfAPs = scanMngr_getBSSList(pRoamingMngr->hScanMngr);
if ((pRoamingMngr->pListOfAPs != NULL) && (pRoamingMngr->pListOfAPs->numOfEntries > 0)) { /* No need to SCAN, start SELECTING */
roamingEvent = ROAMING_EVENT_SELECT;
} else { /* check if list of APs exists in order to verify which scan to start */
roamingEvent = ROAMING_EVENT_SCAN;
if (pRoamingMngr->neighborApsExist) { /* Scan only Neighbor APs */
pRoamingMngr->scanType = ROAMING_PARTIAL_SCAN;
} else { /* Scan all channels */
pRoamingMngr->scanType = ROAMING_FULL_SCAN;
}
}
TRACE1(pRoamingMngr->hReport, REPORT_SEVERITY_INFORMATION, "roamingMngr_smRoamTrigger, scanType = %d\n", pRoamingMngr->scanType);
roamingMngr_smEvent(roamingEvent, pRoamingMngr);
}
static void roamingMngr_smConnectedToScan (TI_HANDLE hRoamingMngr)
{
roamingMngr_t *pRoamingMngr = (roamingMngr_t*) hRoamingMngr;
TI_STATUS status = TI_OK;
status= apConn_prepareToRoaming(pRoamingMngr->hAPConnection, ROAMING_TRIGGER_NONE);
if (status == TI_OK) {
status = scanMngr_startImmediateScan (pRoamingMngr->hScanMngr,TI_FALSE);
} else {
roamingMngr_smEvent(ROAMING_MANUAL_EVENT_COMPLETE, hRoamingMngr);
}
}
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);
}
}
