qcacld-3.0: Register handler for wmi smart monitor event

Register handler for wmi smart monitor event in packet capture
mode in lithium. Currently, wmi smart monitor event provides
average rssi of last ten received data packets.

Change-Id: Ieeea5cbef328b04f139f54e7a42d52a3cf25824b
CRs-Fixed: 2969245

components/target_if/pkt_capture/src/target_if_pkt_capture.c

@@ -23,6 +23,7 @@
  */
 
 #include <target_if_pkt_capture.h>
+#include <wlan_pkt_capture_tgt_api.h>
 #include <wmi_unified_api.h>
 #include <target_if.h>
 #include <init_deinit_lmac.h>
@@ -276,6 +277,121 @@ target_if_unregister_mgmt_data_offload_event(struct wlan_objmgr_psoc *psoc)
 	return status;
 }
 
+#ifdef WLAN_FEATURE_PKT_CAPTURE_V2
+static int
+target_if_smart_monitor_event_handler(void *handle, uint8_t *data,
+				      uint32_t len)
+{
+	struct smu_event_params params;
+	struct wmi_unified *wmi_handle;
+	struct wlan_objmgr_psoc *psoc;
+	QDF_STATUS status;
+
+	psoc = target_if_get_psoc_from_scn_hdl(handle);
+	if (!psoc) {
+		pkt_capture_err("psoc is NULL");
+		return -EINVAL;
+	}
+
+	wmi_handle = get_wmi_unified_hdl_from_psoc(psoc);
+	if (!wmi_handle) {
+		target_if_err("Invalid WMI handle");
+		return -EINVAL;
+	}
+
+	if (!(ucfg_pkt_capture_get_pktcap_mode(psoc) &
+	      PKT_CAPTURE_MODE_MGMT_ONLY))
+		return -EINVAL;
+
+	status = wmi_unified_extract_smart_monitor_event(wmi_handle, data,
+							 &params);
+	if (QDF_IS_STATUS_ERROR(status)) {
+		pkt_capture_err("Extract smart monitor event failed");
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+/**
+ * target_if_register_smart_monitor_event() - Register smu event
+ * @psoc: wlan psoc object
+ *
+ * Return: QDF_STATUS
+ */
+static QDF_STATUS
+target_if_register_smart_monitor_event(struct wlan_objmgr_psoc *psoc)
+{
+	wmi_unified_t wmi_handle;
+
+	if (!psoc) {
+		pkt_capture_err("psoc got NULL");
+		return QDF_STATUS_E_FAILURE;
+	}
+	wmi_handle = get_wmi_unified_hdl_from_psoc(psoc);
+
+	if (!wmi_handle) {
+		pkt_capture_err("wmi_handle is NULL");
+		return QDF_STATUS_E_FAILURE;
+	}
+
+	if ((ucfg_pkt_capture_get_mode(psoc) != PACKET_CAPTURE_MODE_DISABLE) &&
+	    wmi_service_enabled(wmi_handle,
+				wmi_service_packet_capture_support)) {
+		uint8_t status;
+
+		status = wmi_unified_register_event_handler(
+				wmi_handle,
+				wmi_vdev_smart_monitor_event_id,
+				target_if_smart_monitor_event_handler,
+				WMI_RX_WORK_CTX);
+		if (status) {
+			pkt_capture_err("Failed to register smart monitor handler");
+			return QDF_STATUS_E_FAILURE;
+		}
+	}
+
+	return QDF_STATUS_SUCCESS;
+}
+
+/**
+ * target_if_unregister_smart_monitor_event() - Unregister smu event
+ * @psoc: wlan psoc object
+ *
+ * Return: QDF_STATUS
+ */
+static QDF_STATUS
+target_if_unregister_smart_monitor_event(struct wlan_objmgr_psoc *psoc)
+{
+	wmi_unified_t wmi_handle;
+	QDF_STATUS status;
+
+	wmi_handle = get_wmi_unified_hdl_from_psoc(psoc);
+	if (!wmi_handle) {
+		pkt_capture_err("Invalid wmi handle");
+		return QDF_STATUS_E_INVAL;
+	}
+
+	status = wmi_unified_unregister_event(wmi_handle,
+					      wmi_vdev_smart_monitor_event_id);
+	if (status)
+		pkt_capture_err("unregister smart monitor event handler failed");
+
+	return status;
+}
+#else
+static QDF_STATUS
+target_if_register_smart_monitor_event(struct wlan_objmgr_psoc *psoc)
+{
+	return QDF_STATUS_SUCCESS;
+}
+
+static QDF_STATUS
+target_if_unregister_smart_monitor_event(struct wlan_objmgr_psoc *psoc)
+{
+	return QDF_STATUS_SUCCESS;
+}
+#endif
 void
 target_if_pkt_capture_register_rx_ops(struct wlan_pkt_capture_rx_ops *rx_ops)
 {
@@ -289,6 +405,12 @@ target_if_pkt_capture_register_rx_ops(struct wlan_pkt_capture_rx_ops *rx_ops)
 
 	rx_ops->pkt_capture_unregister_ev_handlers =
 				target_if_unregister_mgmt_data_offload_event;
+
+	rx_ops->pkt_capture_register_smart_monitor_event =
+				target_if_register_smart_monitor_event;
+
+	rx_ops->pkt_capture_unregister_smart_monitor_event =
+				target_if_unregister_smart_monitor_event;
 }
 
 void