qcacld-3.0: Add an API to check if a new connection causes DBS/SBS

Add an API to loop through all existing connections and check if
the new connection frequency causes DBS/SBS.

Change-Id: Ib7929fc969cd04a26e082f6f9a3acf991befcc5d
CRs-Fixed: 3600235

components/cmn_services/policy_mgr/inc/wlan_policy_mgr_api.h

@@ -5530,4 +5530,16 @@ uint32_t policy_mgr_get_beaconing_mode_info(struct wlan_objmgr_psoc *psoc,
 bool policy_mgr_is_freq_on_mac_id(struct policy_mgr_freq_range *freq_range,
 				  qdf_freq_t freq, uint8_t mac_id);
 
+/**
+ * policy_mgr_is_conn_lead_to_dbs_sbs() - New freq leads to DBS/SBS
+ * @psoc: PSOC object information
+ * @freq: New connection frequency
+ *
+ * This API loops through existing connections from policy_mgr connection table
+ *
+ * Return: True if new frequency causes DBS/SBS with existing connections
+ */
+bool
+policy_mgr_is_conn_lead_to_dbs_sbs(struct wlan_objmgr_psoc *psoc,
+				   uint32_t freq);
 #endif /* __WLAN_POLICY_MGR_API_H */

components/cmn_services/policy_mgr/src/wlan_policy_mgr_action.c

@@ -845,6 +845,27 @@ policy_mgr_get_third_conn_action_table(
 	}
 }
 
+bool
+policy_mgr_is_conn_lead_to_dbs_sbs(struct wlan_objmgr_psoc *psoc,
+				   uint32_t freq)
+{
+	struct connection_info info[MAX_NUMBER_OF_CONC_CONNECTIONS] = {0};
+	uint32_t connection_count, i;
+
+	if (policy_mgr_is_current_hwmode_dbs(psoc) ||
+	    policy_mgr_is_current_hwmode_sbs(psoc))
+		return true;
+
+	connection_count = policy_mgr_get_connection_info(psoc, info);
+
+	for (i = 0; i < connection_count; i++)
+		if (!policy_mgr_2_freq_always_on_same_mac(psoc, freq,
+							  info[i].ch_freq))
+			return true;
+
+	return false;
+}
+
 static QDF_STATUS
 policy_mgr_get_next_action(struct wlan_objmgr_psoc *psoc,
 			   uint32_t session_id,