qcacld-3.0: Send SNR values for roam trigger minimum rssi

When the firmware doesn't advertise the
wmi_service_hw_db2dbm_support target capability host should send
rssi values in SNR equivalent so that the hardware can trigger
interrupts. Else low rssi, idle roam, emergency deauth roam
interrupts will not be triggered.

Add changes to convert RSSI values coming from ini to
SNR and send it to firmware. Below ini parameters need
conversion:
bss_load_trigger_2g_rssi_threshold
bss_load_trigger_5g_rssi_threshold
idle_roam_min_rssi
candidate_min_rssi_for_beacon_miss
candidate_min_rssi_for_disconnect

Change-Id: Ied0325031b336d0b6c03ad5dda772170bc54190c
CRs-Fixed: 2590848

core/wma/src/wma_scan_roam.c

@@ -1320,6 +1320,17 @@ static QDF_STATUS wma_roam_scan_offload_ap_profile(tp_wma_handle wma_handle,
 			roam_req->min_rssi_params[DEAUTH_MIN_RSSI];
 	ap_profile.min_rssi_params[BMISS_MIN_RSSI] =
 			roam_req->min_rssi_params[BMISS_MIN_RSSI];
+	if (!db2dbm_enabled) {
+		ap_profile.min_rssi_params[DEAUTH_MIN_RSSI].min_rssi -=
+				       WMA_NOISE_FLOOR_DBM_DEFAULT;
+		ap_profile.min_rssi_params[DEAUTH_MIN_RSSI].min_rssi &=
+				       0x000000ff;
+
+		ap_profile.min_rssi_params[BMISS_MIN_RSSI].min_rssi -=
+			       WMA_NOISE_FLOOR_DBM_DEFAULT;
+		ap_profile.min_rssi_params[BMISS_MIN_RSSI].min_rssi &=
+				0x000000ff;
+	}
 
 	ap_profile.score_delta_param[IDLE_ROAM_TRIGGER] =
 				roam_req->score_delta_param[IDLE_ROAM_TRIGGER];
@@ -1575,15 +1586,27 @@ void wma_send_roam_bss_load_config(WMA_HANDLE handle,
 {
 	QDF_STATUS status;
 	tp_wma_handle wma_handle = (tp_wma_handle) handle;
+	bool db2dbm_enabled;
 
 	if (!wma_handle || !wma_handle->wmi_handle) {
 		WMA_LOGE("WMA is closed, cannot send bss load config");
 		return;
 	}
 
-	WMA_LOGD("%s: Sending bss load trig params vdev %u bss_load_threshold %u bss_load_sample_time: %u",
+	db2dbm_enabled = wmi_service_enabled(wma_handle->wmi_handle,
+					     wmi_service_hw_db2dbm_support);
+	if (!db2dbm_enabled) {
+		params->rssi_threshold_5ghz -= WMA_NOISE_FLOOR_DBM_DEFAULT;
+		params->rssi_threshold_5ghz &= 0x000000ff;
+
+		params->rssi_threshold_24ghz -= WMA_NOISE_FLOOR_DBM_DEFAULT;
+		params->rssi_threshold_24ghz &= 0x000000ff;
+	}
+
+	WMA_LOGD("%s: Bss load trig params vdev %u threshold %u sample_time: %u 5Ghz RSSI threshold:%d 2.4G rssi threshold:%d",
 		 __func__, params->vdev_id, params->bss_load_threshold,
-		 params->bss_load_sample_time);
+		 params->bss_load_sample_time, params->rssi_threshold_5ghz,
+		 params->rssi_threshold_24ghz);
 
 	status = wmi_unified_send_bss_load_config(wma_handle->wmi_handle,
 						  params);
@@ -1687,6 +1710,7 @@ wma_send_idle_roam_params(tp_wma_handle wma_handle,
 			  struct roam_offload_scan_req *roam_req)
 {
 	QDF_STATUS status;
+	bool db2dbm_enabled;
 
 	if (!wma_handle || !wma_handle->wmi_handle) {
 		WMA_LOGE("WMA is closed, cannot send idle roam params");
@@ -1706,6 +1730,14 @@ wma_send_idle_roam_params(tp_wma_handle wma_handle,
 		break;
 	}
 
+	db2dbm_enabled = wmi_service_enabled(wma_handle->wmi_handle,
+					     wmi_service_hw_db2dbm_support);
+	if (!db2dbm_enabled) {
+		roam_req->idle_roam_params.conn_ap_min_rssi -=
+					WMA_NOISE_FLOOR_DBM_DEFAULT;
+		roam_req->idle_roam_params.conn_ap_min_rssi &= 0x000000ff;
+	}
+
 	status = wmi_unified_send_idle_roam_params(wma_handle->wmi_handle,
 						   &roam_req->idle_roam_params);
 	if (QDF_IS_STATUS_ERROR(status))