commit 920df211f92b0e88d9d233239665504791529f7a
author Varun Reddy Yeturu <c_vyetur@qca.qualcomm.com> Wed May 22 08:07:23 2013 -0700
committer Gopichand Nakkala <gnakkala@qca.qualcomm.com> Tue Jun 04 03:04:46 2013 -0700
tree 05857da649fbd9f64e6cd7cda29a3baa3239ed59
parent 4a231fb5ede29750139cf4214129780a9c5045a3

wlan: Support for NProbes, Home away time and Reassoc

This change has support for NProbes, Scan home away
time and HDD/SME level change for reassoc command

Change-Id: I0c050b4e67ca806b405c68c04d6b99e951dc4c5f
CRs-Fixed: 481935

CORE/SME/src/csr/csrApiRoam.c

diff --git a/CORE/SME/src/csr/csrApiRoam.c b/CORE/SME/src/csr/csrApiRoam.c
index f23af70..26bf344 100644
--- a/CORE/SME/src/csr/csrApiRoam.c
+++ b/CORE/SME/src/csr/csrApiRoam.c
@@ -1547,6 +1547,8 @@
         pMac->roam.configParam.nRoamPrefer5GHz = pParam->nRoamPrefer5GHz;
         pMac->roam.configParam.nRoamIntraBand = pParam->nRoamIntraBand;
         pMac->roam.configParam.isWESModeEnabled = pParam->isWESModeEnabled;
+        pMac->roam.configParam.nProbes = pParam->nProbes;
+        pMac->roam.configParam.nRoamScanHomeAwayTime = pParam->nRoamScanHomeAwayTime;
 #endif
 #ifdef WLAN_FEATURE_ROAM_SCAN_OFFLOAD
         pMac->roam.configParam.isRoamOffloadScanEnabled = pParam->isRoamOffloadScanEnabled;
@@ -14590,6 +14592,7 @@
    tCsrRoamSession *pSession;
    tANI_U8 i,num_channels = 0, ucDot11Mode;
    tANI_U8 *ChannelList = NULL;
+   tANI_U8  MaxDwellPeriod;
    tANI_U32 sessionId;
    eHalStatus status = eHAL_STATUS_SUCCESS;
    tpCsrChannelInfo    currChannelListInfo;
@@ -14768,8 +14771,31 @@
           }
           pRequestBuf->ValidChannelCount = num_channels;
     }
-    pRequestBuf->MDID.mdiePresent = pMac->roam.roamSession[sessionId].connectedProfile.MDID.mdiePresent;
-    pRequestBuf->MDID.mobilityDomain = pMac->roam.roamSession[sessionId].connectedProfile.MDID.mobilityDomain;
+    pRequestBuf->MDID.mdiePresent =
+            pMac->roam.roamSession[sessionId].connectedProfile.MDID.mdiePresent;
+    pRequestBuf->MDID.mobilityDomain =
+            pMac->roam.roamSession[sessionId].connectedProfile.MDID.mobilityDomain;
+    /*Ensure that the nProbes does not fall below its MIN Value which is 2*/
+    if(pMac->roam.configParam.nProbes < 2)
+       pRequestBuf->nProbes = 2;
+    else
+    pRequestBuf->nProbes = pMac->roam.configParam.nProbes;
+
+    /*Max Dwell Period is calculated here to ensure that,
+     * Home Away Time is atleast equal to (MaxDwellPeriod +
+     * (2*SRF)), where SRF is the RF Switching time.The RF
+     * switching time is considered twice to consider the
+     * time to go off channel and return to the home channel.*/
+    MaxDwellPeriod = pRequestBuf->NeighborScanChannelMaxTime/pRequestBuf->nProbes;
+    if(MaxDwellPeriod < 1)
+       MaxDwellPeriod = 1;
+    if(pMac->roam.configParam.nRoamScanHomeAwayTime <
+            (MaxDwellPeriod + (2 * SIR_ROAM_SCAN_CHANNEL_SWITCH_TIME)))
+    {
+       pRequestBuf->HomeAwayTime = MaxDwellPeriod + (2 * SIR_ROAM_SCAN_CHANNEL_SWITCH_TIME);
+    } else {
+    pRequestBuf->HomeAwayTime = pMac->roam.configParam.nRoamScanHomeAwayTime;
+    }
    /*Prepare a probe request for 2.4GHz band and one for 5GHz band*/
     ucDot11Mode = (tANI_U8) csrTranslateToWNICfgDot11Mode(pMac,
                                                            csrFindBestPhyMode( pMac, pMac->roam.configParam.phyMode ));
@@ -14778,12 +14804,12 @@
 
    csrRoamScanOffloadPrepareProbeReqTemplate(pMac,SIR_ROAM_SCAN_5G_DEFAULT_CH, ucDot11Mode, pSession->selfMacAddr,
                                              pRequestBuf->p5GProbeTemplate, &pRequestBuf->us5GProbeTemplateLen);
-   msg.type     = WDA_START_ROAM_CANDIDATE_LOOKUP_REQ;
+   msg.type     = WDA_ROAM_SCAN_OFFLOAD_REQ;
    msg.reserved = 0;
    msg.bodyptr  = pRequestBuf;
    if (!VOS_IS_STATUS_SUCCESS(vos_mq_post_message(VOS_MODULE_ID_WDA, &msg)))
    {
-           VOS_TRACE(VOS_MODULE_ID_SME, VOS_TRACE_LEVEL_ERROR, "%s: Not able to post WDA_START_ROAM_CANDIDATE_LOOKUP_REQ message to WDA", __func__);
+           VOS_TRACE(VOS_MODULE_ID_SME, VOS_TRACE_LEVEL_ERROR, "%s: Not able to post WDA_ROAM_SCAN_OFFLOAD_REQ message to WDA", __func__);
            vos_mem_free(pRequestBuf);
            return eHAL_STATUS_FAILURE;
    }