qcacld-3.0: Avoid ch switch when stand alone SAP is on unsafe ch

Some targets may prefer to keep SAP on same channel even when the
channel is marked as unsafe due to coex operations.
Check the corresponding device capability and avoid chan switch
when the SAP is fixed channel(non-ACS) SAP.

Change-Id: I8d003359a587c5308899e0956b0414074bd748b0
CRs-Fixed: 3776847

components/cmn_services/policy_mgr/src/wlan_policy_mgr_action.c

@@ -3184,14 +3184,14 @@ void policy_mgr_check_concurrent_intf_and_restart_sap(
 	}
 
 	/*
+	 * This is to check the cases where STA got disconnected or
+	 * sta is present on some valid channel where SAP evaluation/restart
+	 * might be needed.
 	 * force SCC with STA+STA+SAP will need some additional logic
 	 */
 	cc_count = policy_mgr_get_mode_specific_conn_info(
 				psoc, &op_ch_freq_list[cc_count],
 				&vdev_id[cc_count], PM_STA_MODE);
-	if (!cc_count) {
-		policy_mgr_debug("Could not get STA operating channel&vdevid");
-	}
 
 	sta_check = !cc_count ||
 		    policy_mgr_valid_sta_channel_check(psoc, op_ch_freq_list[0]);
@@ -3200,16 +3200,30 @@ void policy_mgr_check_concurrent_intf_and_restart_sap(
 	cc_count = policy_mgr_get_mode_specific_conn_info(
 				psoc, &op_ch_freq_list[cc_count],
 				&vdev_id[cc_count], PM_P2P_CLIENT_MODE);
-	if (!cc_count)
-		policy_mgr_debug("Could not get GC operating channel&vdevid");
 
 	gc_check = !!cc_count;
-	policy_mgr_debug("gc_check: %d", gc_check);
 
 	mcc_to_scc_switch =
 		policy_mgr_get_mcc_to_scc_switch_mode(psoc);
-	policy_mgr_debug("MCC to SCC switch: %d chan: %d",
-			 mcc_to_scc_switch, op_ch_freq_list[0]);
+	policy_mgr_debug("MCC to SCC switch: %d chan: %d sta_check: %d, gc_check: %d",
+			 mcc_to_scc_switch, op_ch_freq_list[0],
+			 sta_check, gc_check);
+
+	cc_count = 0;
+	cc_count = policy_mgr_get_mode_specific_conn_info(
+				psoc, &op_ch_freq_list[cc_count],
+				&vdev_id[cc_count], PM_SAP_MODE);
+
+	/* SAP + SAP case needs additional handling */
+	if (cc_count == 1 && !is_acs_mode &&
+	    target_psoc_get_sap_coex_fixed_chan_cap(
+			wlan_psoc_get_tgt_if_handle(psoc)) &&
+	    !policy_mgr_is_safe_channel(psoc, op_ch_freq_list[0])) {
+		policy_mgr_debug("Avoid channel switch as it's allowed to operate on unsafe channel: %d",
+				 op_ch_freq_list[0]);
+		return;
+	}
+
 sap_restart:
 	/*
 	 * If sta_sap_scc_on_dfs_chan is true then standalone SAP is not