commit 192d9d45f89d198d1b25b40b65f7fe542820c8f2
author Kapil Gupta <kapgupta@qti.qualcomm.com> Fri Nov 25 16:24:13 2016 +0530
committer Anjaneedevi Kapparapu <akappa@codeaurora.org> Tue Nov 29 15:58:57 2016 +0530
tree f567b2f1a5a6eb8c46bf586893ba54830640dfe1
parent 4904f0aeabd6283d137e3a9fd7d9cf2da4e56524

wlan: Add configuration option for bad RSSI in PER based roaming

In PER based roaming candidate selection, candidates are
discarded if their RSSI are too low which is considered
as bad RSSI.

Add changes to remove constant value for bad RSSI and add
configuration parameter based on ini.

CRs-Fixed: 1094330
Change-Id: Ia0a442a27c06cec82de8112b7c11fb30a0e14493

CORE/SME/inc/csrApi.h

diff --git a/CORE/SME/inc/csrApi.h b/CORE/SME/inc/csrApi.h
index 38e2be8..f46c6e0 100644
--- a/CORE/SME/inc/csrApi.h
+++ b/CORE/SME/inc/csrApi.h
@@ -1191,6 +1191,7 @@
     v_BOOL_t isPERRoamEnabled;
     v_BOOL_t isPERRoamCCAEnabled;
     v_S15_t PERRoamFullScanThreshold;
+    v_S15_t PERMinRssiThresholdForRoam;
     v_U32_t rateUpThreshold;
     v_U32_t rateDownThreshold;
     v_U32_t waitPeriodForNextPERScan;

CORE/SME/inc/csrInternal.h

diff --git a/CORE/SME/inc/csrInternal.h b/CORE/SME/inc/csrInternal.h
index 67492e3..a780af6 100644
--- a/CORE/SME/inc/csrInternal.h
+++ b/CORE/SME/inc/csrInternal.h
@@ -627,6 +627,7 @@
     v_BOOL_t     isPERRoamEnabled;
     v_BOOL_t     isPERRoamCCAEnabled;
     v_S15_t      PERRoamFullScanThreshold;
+    v_S15_t      PERMinRssiThresholdForRoam;
     tANI_U32     rateUpThreshold;
     tANI_U32     rateDownThreshold;
     tANI_U32     waitPeriodForNextPERScan;

CORE/SME/src/csr/csrApiRoam.c

diff --git a/CORE/SME/src/csr/csrApiRoam.c b/CORE/SME/src/csr/csrApiRoam.c
index b91f930..c6df70c 100644
--- a/CORE/SME/src/csr/csrApiRoam.c
+++ b/CORE/SME/src/csr/csrApiRoam.c
@@ -1972,6 +1972,9 @@
                 pParam->PERRoamFullScanThreshold;
         pMac->roam.configParam.PERroamTriggerPercent =
                 pParam->PERroamTriggerPercent;
+        pMac->roam.configParam.PERMinRssiThresholdForRoam =
+                pParam->PERMinRssiThresholdForRoam;
+        pMac->PERroamTimeout = pParam->waitPeriodForNextPERScan;
 #endif
 #ifdef FEATURE_WLAN_LFR
         pMac->roam.configParam.isFastRoamIniFeatureEnabled = pParam->isFastRoamIniFeatureEnabled;
@@ -2200,6 +2203,8 @@
                 pMac->roam.configParam.PERRoamFullScanThreshold;
         pParam->PERroamTriggerPercent =
                 pMac->roam.configParam.PERroamTriggerPercent;
+        pParam->PERMinRssiThresholdForRoam =
+                pMac->roam.configParam.PERMinRssiThresholdForRoam;
 #endif
 #ifdef FEATURE_WLAN_LFR
         pParam->isFastRoamIniFeatureEnabled = pMac->roam.configParam.isFastRoamIniFeatureEnabled;

CORE/SME/src/csr/csrApiScan.c

diff --git a/CORE/SME/src/csr/csrApiScan.c b/CORE/SME/src/csr/csrApiScan.c
index 0a628c2..4eba38d 100644
--- a/CORE/SME/src/csr/csrApiScan.c
+++ b/CORE/SME/src/csr/csrApiScan.c
@@ -2219,7 +2219,7 @@
         return -1;
     }
 
-    if (bssInfo->rssi < PER_BAD_RSSI) {
+    if (bssInfo->rssi < pMac->roam.configParam.PERMinRssiThresholdForRoam) {
         smsLog(pMac, LOG1,
                FL("discrarding candidate due to low rssi=%d bssid "
                MAC_ADDRESS_STR), bssInfo->rssi,