qcacld-3.0: Create configuration item gfirst_scan_bucket_threshold

qcacld-2.0 to qcacld-3.0 propagation

Create a configuration item to program the first bucket
threshold of the scan results to have the flexibility to
adjust the first bucket threshold.

CRs-Fixed: 922979
Change-Id: I6fad27a2990f7555173e4735131e8392d0277009

core/hdd/inc/wlan_hdd_cfg.h

@@ -2758,6 +2758,19 @@ enum dot11p_mode {
 #define CFG_EARLY_STOP_SCAN_MAX_THRESHOLD_MAX       (-40)
 #define CFG_EARLY_STOP_SCAN_MAX_THRESHOLD_DEFAULT   (-45)
 
+/*
+ * This parameter will configure the first scan bucket
+ * threshold to the mentioned value and all the AP's which
+ * have RSSI under this threshold will fall under this
+ * bucket.
+ * This is a configuration item used to tweak and test the input
+ * for internal algorithm. It should not be modified externally.
+ */
+#define CFG_FIRST_SCAN_BUCKET_THRESHOLD_NAME      "gFirstScanBucketThreshold"
+#define CFG_FIRST_SCAN_BUCKET_THRESHOLD_MIN       (-50)
+#define CFG_FIRST_SCAN_BUCKET_THRESHOLD_MAX       (-30)
+#define CFG_FIRST_SCAN_BUCKET_THRESHOLD_DEFAULT   (-30)
+
 /*---------------------------------------------------------------------------
    Type declarations
    -------------------------------------------------------------------------*/
@@ -3335,6 +3348,7 @@ struct hdd_config {
 	bool early_stop_scan_enable;
 	int8_t early_stop_scan_min_threshold;
 	int8_t early_stop_scan_max_threshold;
+	int8_t first_scan_bucket_threshold;
 };
 
 #define VAR_OFFSET(_Struct, _Var) (offsetof(_Struct, _Var))

core/hdd/src/wlan_hdd_cfg.c

@@ -3603,6 +3603,14 @@ REG_TABLE_ENTRY g_registry_table[] = {
 		     CFG_EARLY_STOP_SCAN_MAX_THRESHOLD_MIN,
 		     CFG_EARLY_STOP_SCAN_MAX_THRESHOLD_MAX),
 
+	REG_VARIABLE(CFG_FIRST_SCAN_BUCKET_THRESHOLD_NAME,
+		     WLAN_PARAM_SignedInteger,
+		     struct hdd_config, first_scan_bucket_threshold,
+		     VAR_FLAGS_OPTIONAL | VAR_FLAGS_RANGE_CHECK_ASSUME_DEFAULT,
+		     CFG_FIRST_SCAN_BUCKET_THRESHOLD_DEFAULT,
+		     CFG_FIRST_SCAN_BUCKET_THRESHOLD_MIN,
+		     CFG_FIRST_SCAN_BUCKET_THRESHOLD_MAX),
+
 };
 
 
@@ -5146,7 +5154,9 @@ void hdd_cfg_print(hdd_context_t *pHddCtx)
 	hddLog(LOGE, "Name = [%s] Value = [%d]",
 		CFG_EARLY_STOP_SCAN_MAX_THRESHOLD,
 		pHddCtx->config->early_stop_scan_max_threshold);
-
+	hddLog(LOGE, "Name = [%s] Value = [%d]",
+		CFG_FIRST_SCAN_BUCKET_THRESHOLD_NAME,
+		pHddCtx->config->first_scan_bucket_threshold);
 }
 
 
@@ -6589,6 +6599,8 @@ CDF_STATUS hdd_set_sme_config(hdd_context_t *pHddCtx)
 		pHddCtx->config->early_stop_scan_min_threshold;
 	smeConfig->early_stop_scan_max_threshold =
 		pHddCtx->config->early_stop_scan_max_threshold;
+	smeConfig->csrConfig.first_scan_bucket_threshold =
+		pHddCtx->config->first_scan_bucket_threshold;
 	status = sme_update_config(pHddCtx->hHal, smeConfig);
 	if (!CDF_IS_STATUS_SUCCESS(status)) {
 		hddLog(LOGE, "sme_update_config() return failure %d",

core/mac/inc/ani_global.h

@@ -1043,6 +1043,7 @@ typedef struct sAniSirGlobal {
 	uint32_t dual_mac_feature_disable;
 
 	bool first_scan_done;
+	int8_t first_scan_bucket_threshold;
 } tAniSirGlobal;
 
 typedef enum {

core/sme/inc/csr_api.h

@@ -1274,6 +1274,7 @@ typedef struct tagCsrConfigParam {
 	bool early_stop_scan_enable;
 	int8_t early_stop_scan_min_threshold;
 	int8_t early_stop_scan_max_threshold;
+	int8_t first_scan_bucket_threshold;
 } tCsrConfigParam;
 
 /* Tush */

core/sme/inc/sme_api.h

@@ -134,6 +134,7 @@ typedef struct _smeConfigParams {
 	bool early_stop_scan_enable;
 	int8_t early_stop_scan_min_threshold;
 	int8_t early_stop_scan_max_threshold;
+	int8_t first_scan_bucket_threshold;
 } tSmeConfigParams, *tpSmeConfigParams;
 
 #ifdef FEATURE_WLAN_TDLS

core/sme/src/csr/csr_api_roam.c

@@ -1189,6 +1189,8 @@ void csr_assign_rssi_for_category(tpAniSirGlobal pMac, int8_t bestApRssi,
 				  uint8_t catOffset)
 {
 	int i;
+	sms_log(pMac, LOG2, FL("best AP RSSI:%d, cat offset:%d"),
+		bestApRssi, catOffset);
 	if (catOffset) {
 		pMac->roam.configParam.bCatRssiOffset = catOffset;
 		for (i = 0; i < CSR_NUM_RSSI_CAT; i++) {
@@ -1238,7 +1240,7 @@ static void init_config_param(tpAniSirGlobal pMac)
 		pMac->roam.configParam.BssPreferValue[i] = i;
 	}
 	csr_assign_rssi_for_category(pMac, CSR_BEST_RSSI_VALUE,
-				     CSR_DEFAULT_RSSI_DB_GAP);
+			CSR_DEFAULT_RSSI_DB_GAP);
 	pMac->roam.configParam.nRoamingTime = CSR_DEFAULT_ROAMING_TIME;
 	pMac->roam.configParam.fSupplicantCountryCodeHasPriority = false;
 	pMac->roam.configParam.nActiveMaxChnTime = CSR_ACTIVE_MAX_CHANNEL_TIME;
@@ -1821,8 +1823,11 @@ CDF_STATUS csr_change_default_config_param(tpAniSirGlobal pMac,
 				pParam->scanAgeTimeCPS;
 		}
 
-		csr_assign_rssi_for_category(pMac, CSR_BEST_RSSI_VALUE,
-					     pParam->bCatRssiOffset);
+		pMac->first_scan_bucket_threshold =
+			pParam->first_scan_bucket_threshold;
+		csr_assign_rssi_for_category(pMac,
+			pMac->first_scan_bucket_threshold,
+			pParam->bCatRssiOffset);
 		pMac->roam.configParam.nRoamingTime = pParam->nRoamingTime;
 		pMac->roam.configParam.fSupplicantCountryCodeHasPriority =
 			pParam->fSupplicantCountryCodeHasPriority;
@@ -2158,6 +2163,8 @@ CDF_STATUS csr_get_config_param(tpAniSirGlobal pMac, tCsrConfigParam *pParam)
 	pParam->sendDeauthBeforeCon =
 		cfg_params->sendDeauthBeforeCon;
 	pParam->max_scan_count = pMac->scan.max_scan_count;
+	pParam->first_scan_bucket_threshold =
+		pMac->first_scan_bucket_threshold;
 	return CDF_STATUS_SUCCESS;
 }