Initial code check-inicefish_8.99.5icefish_8.99.4icefish_8.99.3icefish_8.99.2icefish_8.99.1icefish/8.99.5icefish/8.99.4icefish/8.99.3icefish/8.99.2icefish/8.99.1halibut_8.0.6halibut_8.0.5halibut_8.0.4halibut_8.0.3halibut_8.0.2halibut_8.0.1halibut_8.0.0halibut_7.99.3halibut_7.99.2halibut_7.99.1halibut/8.0.6halibut/8.0.5halibut/8.0.4halibut/8.0.3halibut/8.0.2halibut/8.0.1halibut/8.0.0halibut/7.99.3halibut/7.99.2halibut/7.99.18.99.58.99.48.99.38.99.28.99.18.0.68.0.58.0.48.0.38.0.28.0.18.0.07.99.37.99.27.99.1halibut

A simple telematics demo application for AGL.  It reads vehicle and
engine speed from the CAN low-level binding and publishes them via
MQTT.

Change-Id: Ib85904e87919053cad1215b3f53cee81db25c94a
Signed-off-by: Scott Murray <scott.murray@konsulko.com>

1 files changed, 119 insertions, 0 deletions

diff --git a/app/network.cpp b/app/network.cpp
new file mode 100644
index 0000000..d163ef5
--- /dev/null
+++ b/app/network.cpp
@@ -0,0 +1,119 @@
+/*
+ * Copyright (C) 2019 Konsulko Group
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "network.h"
+#include <string>
+#include <iostream>
+#include <unistd.h>
+#include <json-c/json.h>
+
+int enable_modem(Configuration &config, AfbClient &afbclient)
+{
+	int rc;
+	struct json_object *j_resp = NULL;
+
+	bool cellular_enabled = false;
+	bool cellular_found = false;
+	while(!cellular_found) {
+		// Check current state
+		rc = afbclient.call_sync(std::string("network-manager"), std::string("technologies"), NULL, &j_resp);
+		if(rc < 0 || !j_resp)
+			continue;
+		if(config.getLogLevel() > 1) {
+			std::cerr << __FUNCTION__ << ": j_resp = " <<	\
+				json_object_to_json_string_ext(j_resp, JSON_C_TO_STRING_SPACED | JSON_C_TO_STRING_PRETTY) << \
+				std::endl;
+		}
+
+		struct json_object *j_response;
+		if(!json_object_object_get_ex(j_resp, "response", &j_response))
+			continue;
+
+		struct json_object *j_values;
+		if(!json_object_object_get_ex(j_response, "values", &j_values))
+			continue;
+
+		for(int i = 0; i < json_object_array_length(j_values); i++) {
+			struct json_object *j_value = json_object_array_get_idx(j_values, i);
+			if(!j_value)
+				break;
+
+			struct json_object *j_technology;
+			if(!json_object_object_get_ex(j_value, "technology", &j_technology))
+				break;
+
+			std::string technology(json_object_get_string(j_technology));
+			if(technology == "cellular") {
+				struct json_object *j_properties;
+				if(!json_object_object_get_ex(j_value, "properties", &j_properties))
+					break;
+
+				struct json_object *j_powered;
+				if(!json_object_object_get_ex(j_properties, "powered", &j_powered))
+					break;
+
+				if(json_object_get_boolean(j_powered)) {
+					if(config.getLogLevel() > 0) {
+						std::cerr << __FUNCTION__ << ": cellular enabled!" << std::endl;
+						cellular_enabled = true;
+					}
+				}
+
+				std::cerr << __FUNCTION__ << ": cellular found!" << std::endl;
+				cellular_found = true;
+				rc = 0;
+				break;
+			}
+			
+		}
+		json_object_put(j_resp);
+
+		sleep(1);
+	}
+
+	if(!cellular_enabled) {
+		if(config.getLogLevel() > 0) {
+			std::cerr << __FUNCTION__ << ": enabling cellular" << std::endl;
+		}
+		struct json_object *j_obj = json_object_new_object();
+		struct json_object *j_val = json_object_new_string("cellular");
+		json_object_object_add(j_obj, "technology", j_val);
+		rc = afbclient.call_sync(std::string("network-manager"), std::string("enable_technology"), j_obj);
+	}
+	return rc;
+}
+
+bool check_online(AfbClient &afbclient)
+{
+	int rc;
+	struct json_object *j_resp = NULL;
+
+	// Check current state
+	rc = afbclient.call_sync(std::string("network-manager"), std::string("state"), NULL, &j_resp);
+	if(rc < 0 || !j_resp)
+		return false;
+
+	struct json_object *j_response;
+	if(!json_object_object_get_ex(j_resp, "response", &j_response))
+		return false;
+
+	bool online = false;
+	std::string response(json_object_get_string(j_response));
+	if(response == "online")
+		online = true;
+	json_object_put(j_resp);
+	return online;
+}