qcacld-3.0: Add scan start/stop event in TDLS connection tracker

TDLS connection tracker should be stopped, when firmware
sends scan started event and can be enabled again,
when firmware sends scan completed event.
Add changes to stop and start tdls connection tracker
based on scan events.

Change-Id: If61bca75d5f2c326d5e9c734bb8618d5cb67b246
CRs-Fixed: 1086302

core/hdd/src/wlan_hdd_assoc.c

@@ -3539,13 +3539,17 @@ static QDF_STATUS hdd_tdls_connection_tracker_update(hdd_adapter_t *adapter,
 		if (roam_info->reasonCode ==
 		    eWNI_TDLS_PEER_ENTER_BUF_STA ||
 		    roam_info->reasonCode ==
-		    eWNI_TDLS_ENTER_BT_BUSY_MODE)
-			hdd_ctx->enable_tdls_connection_tracker = true;
+		    eWNI_TDLS_ENTER_BT_BUSY_MODE ||
+		    roam_info->reasonCode ==
+		    eWMI_TDLS_SCAN_STARTED_EVENT)
+			hdd_ctx->enable_tdls_connection_tracker = false;
 		else if (roam_info->reasonCode ==
 			  eWNI_TDLS_PEER_EXIT_BUF_STA ||
 			  roam_info->reasonCode ==
-			  eWNI_TDLS_EXIT_BT_BUSY_MODE)
-			hdd_ctx->enable_tdls_connection_tracker = false;
+			  eWNI_TDLS_EXIT_BT_BUSY_MODE ||
+			  roam_info->reasonCode ==
+			  eWMI_TDLS_SCAN_COMPLETED_EVENT)
+			hdd_ctx->enable_tdls_connection_tracker = true;
 
 	} else {
 		hdd_err("TDLS not connected, ignore notification, reason: %d",

core/mac/inc/wni_api.h

@@ -280,12 +280,16 @@ typedef enum {
  * @eWNI_TDLS_PEER_EXIT_BUF_STA: TDLS peer exit buff sta
  * @eWNI_TDLS_ENTER_BT_BUSY_MODE: Enter BT busy event
  * @eWNI_TDLS_EXIT_BT_BUSY_MODE: Exit BT busy event
+ * @eWMI_TDLS_SCAN_STARTED_EVENT: offload scan start event
+ * @eWMI_TDLS_SCAN_COMPLETED_EVENT: offload scan end event
  */
 enum ewni_tdls_connection_tracker_notification {
 	eWNI_TDLS_PEER_ENTER_BUF_STA,
 	eWNI_TDLS_PEER_EXIT_BUF_STA,
 	eWNI_TDLS_ENTER_BT_BUSY_MODE,
 	eWNI_TDLS_EXIT_BT_BUSY_MODE,
+	eWMI_TDLS_SCAN_STARTED_EVENT,
+	eWMI_TDLS_SCAN_COMPLETED_EVENT,
 };
 
 #define WNI_CFG_MSG_TYPES_BEGIN        0x1200

core/wma/src/wma_features.c

@@ -6860,6 +6860,13 @@ int wma_tdls_event_handler(void *handle, uint8_t *event, uint32_t len)
 	case WMI_TDLS_EXIT_BT_BUSY_MODE:
 		tdls_event->peer_reason = eWNI_TDLS_EXIT_BT_BUSY_MODE;
 		break;
+	case WMI_TDLS_SCAN_STARTED_EVENT:
+		tdls_event->peer_reason = eWMI_TDLS_SCAN_STARTED_EVENT;
+		break;
+	case WMI_TDLS_SCAN_COMPLETED_EVENT:
+		tdls_event->peer_reason = eWMI_TDLS_SCAN_COMPLETED_EVENT;
+		break;
+
 	default:
 		WMA_LOGE("%s: unknown reason(%d) in tdls event(%d) from target",
 			 __func__, peer_event->peer_reason,