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-rw-r--r--CAN-binder/low-can-binding/binding/configuration-generated.cpp348
-rw-r--r--CAN-binder/low-can-binding/binding/configuration.cpp106
-rw-r--r--CAN-binder/low-can-binding/binding/configuration.hpp112
-rw-r--r--CAN-binder/low-can-binding/binding/low-can-binding.cpp296
-rw-r--r--CAN-binder/low-can-binding/binding/low-can-binding.hpp33
5 files changed, 895 insertions, 0 deletions
diff --git a/CAN-binder/low-can-binding/binding/configuration-generated.cpp b/CAN-binder/low-can-binding/binding/configuration-generated.cpp
new file mode 100644
index 0000000..c3cecc5
--- /dev/null
+++ b/CAN-binder/low-can-binding/binding/configuration-generated.cpp
@@ -0,0 +1,348 @@
+#include "configuration.hpp"
+#include "can/can-decoder.hpp"
+
+configuration_t::configuration_t()
+ :can_bus_manager_{utils::config_parser_t{"/etc/dev-mapping.conf"}}
+ , can_message_set_{{0, "example", 0, 1, 5, 0, 20}}
+ , can_message_definition_
+ {
+ {
+ can_message_definition_t{0, "can0", 0x620, can_message_format_t::STANDARD, frequency_clock_t(0.00000f), true}
+ }
+ }
+ , can_signals_
+ {
+ {
+ {
+ 0,
+ 0,
+ "doors.coffer.open",
+ 56,
+ 1,
+ 1.00000f,
+ 0,
+ 0,
+ 0,
+ frequency_clock_t(0.00000f),
+ false,
+ false,
+ {
+ },
+ false,
+ decoder_t::booleanDecoder,
+ nullptr,
+ false
+ },
+ {
+ 0,
+ 0,
+ "doors.driver.open",
+ 46,
+ 1,
+ 1.00000f,
+ 0,
+ 0,
+ 0,
+ frequency_clock_t(0.00000f),
+ false,
+ false,
+ {
+ },
+ false,
+ decoder_t::booleanDecoder,
+ nullptr,
+ false
+ },
+ {
+ 0,
+ 0,
+ "doors.passenger.open",
+ 47,
+ 1,
+ 1.00000f,
+ 0,
+ 0,
+ 0,
+ frequency_clock_t(0.00000f),
+ false,
+ false,
+ {
+ },
+ false,
+ decoder_t::booleanDecoder,
+ nullptr,
+ false
+ },
+ {
+ 0,
+ 0,
+ "doors.rearleft.open",
+ 54,
+ 1,
+ 1.00000f,
+ 0,
+ 0,
+ 0,
+ frequency_clock_t(0.00000f),
+ false,
+ false,
+ {
+ },
+ false,
+ decoder_t::booleanDecoder,
+ nullptr,
+ false
+ },
+ {
+ 0,
+ 0,
+ "doors.rearright.open",
+ 55,
+ 4,
+ 1.00000f,
+ 0,
+ 0,
+ 0,
+ frequency_clock_t(0.00000f),
+ false,
+ false,
+ {
+ },
+ false,
+ decoder_t::booleanDecoder,
+ nullptr,
+ false
+ }
+ }
+ }
+ , diagnostic_messages_
+ {
+ {
+ {
+ 4,
+ "engine.load",
+ 0,
+ 0,
+ UNIT::INVALID,
+ 5.00000f,
+ decoder_t::decode_obd2_response,
+ nullptr,
+ true
+ },
+ {
+ 5,
+ "engine.coolant.temperature",
+ 0,
+ 0,
+ UNIT::INVALID,
+ 1.00000f,
+ decoder_t::decode_obd2_response,
+ nullptr,
+ true
+ },
+ {
+ 10,
+ "fuel.pressure",
+ 0,
+ 0,
+ UNIT::INVALID,
+ 1.00000f,
+ decoder_t::decode_obd2_response,
+ nullptr,
+ true
+ },
+ {
+ 11,
+ "intake.manifold.pressure",
+ 0,
+ 0,
+ UNIT::INVALID,
+ 1.00000f,
+ decoder_t::decode_obd2_response,
+ nullptr,
+ true
+ },
+ {
+ 12,
+ "engine.speed",
+ 0,
+ 0,
+ UNIT::INVALID,
+ 5.00000f,
+ decoder_t::decode_obd2_response,
+ nullptr,
+ true
+ },
+ {
+ 13,
+ "vehicle.speed",
+ 0,
+ 0,
+ UNIT::INVALID,
+ 5.00000f,
+ decoder_t::decode_obd2_response,
+ nullptr,
+ true
+ },
+ {
+ 15,
+ "intake.air.temperature",
+ 0,
+ 0,
+ UNIT::INVALID,
+ 1.00000f,
+ decoder_t::decode_obd2_response,
+ nullptr,
+ true
+ },
+ {
+ 16,
+ "mass.airflow",
+ 0,
+ 0,
+ UNIT::INVALID,
+ 5.00000f,
+ decoder_t::decode_obd2_response,
+ nullptr,
+ true
+ },
+ {
+ 17,
+ "throttle.position",
+ 0,
+ 0,
+ UNIT::INVALID,
+ 5.00000f,
+ decoder_t::decode_obd2_response,
+ nullptr,
+ true
+ },
+ {
+ 31,
+ "running.time",
+ 0,
+ 0,
+ UNIT::INVALID,
+ 1.00000f,
+ decoder_t::decode_obd2_response,
+ nullptr,
+ true
+ },
+ {
+ 45,
+ "EGR.error",
+ 0,
+ 0,
+ UNIT::INVALID,
+ 0.00000f,
+ decoder_t::decode_obd2_response,
+ nullptr,
+ true
+ },
+ {
+ 47,
+ "fuel.level",
+ 0,
+ 0,
+ UNIT::INVALID,
+ 1.00000f,
+ decoder_t::decode_obd2_response,
+ nullptr,
+ true
+ },
+ {
+ 51,
+ "barometric.pressure",
+ 0,
+ 0,
+ UNIT::INVALID,
+ 1.00000f,
+ decoder_t::decode_obd2_response,
+ nullptr,
+ true
+ },
+ {
+ 76,
+ "commanded.throttle.position",
+ 0,
+ 0,
+ UNIT::INVALID,
+ 1.00000f,
+ decoder_t::decode_obd2_response,
+ nullptr,
+ true
+ },
+ {
+ 82,
+ "ethanol.fuel.percentage",
+ 0,
+ 0,
+ UNIT::INVALID,
+ 1.00000f,
+ decoder_t::decode_obd2_response,
+ nullptr,
+ true
+ },
+ {
+ 90,
+ "accelerator.pedal.position",
+ 0,
+ 0,
+ UNIT::INVALID,
+ 5.00000f,
+ decoder_t::decode_obd2_response,
+ nullptr,
+ true
+ },
+ {
+ 91,
+ "hybrid.battery-pack.remaining.life",
+ 0,
+ 0,
+ UNIT::INVALID,
+ 5.00000f,
+ decoder_t::decode_obd2_response,
+ nullptr,
+ true
+ },
+ {
+ 92,
+ "engine.oil.temperature",
+ 0,
+ 0,
+ UNIT::INVALID,
+ 1.00000f,
+ decoder_t::decode_obd2_response,
+ nullptr,
+ true
+ },
+ {
+ 94,
+ "engine.fuel.rate",
+ 0,
+ 0,
+ UNIT::INVALID,
+ 1.00000f,
+ decoder_t::decode_obd2_response,
+ nullptr,
+ true
+ },
+ {
+ 99,
+ "engine.torque",
+ 0,
+ 0,
+ UNIT::INVALID,
+ 1.00000f,
+ decoder_t::decode_obd2_response,
+ nullptr,
+ true
+ }
+ }
+ }
+{}
+
+const std::string configuration_t::get_diagnostic_bus() const
+{
+ return "can0";
+}
diff --git a/CAN-binder/low-can-binding/binding/configuration.cpp b/CAN-binder/low-can-binding/binding/configuration.cpp
new file mode 100644
index 0000000..05d3696
--- /dev/null
+++ b/CAN-binder/low-can-binding/binding/configuration.cpp
@@ -0,0 +1,106 @@
+/*
+ * Copyright (C) 2015, 2016 "IoT.bzh"
+ * Author "Romain Forlot" <romain.forlot@iot.bzh>
+ *
+ * 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 "configuration.hpp"
+
+#include "utils/signals.hpp"
+#include "utils/openxc-utils.hpp"
+
+/// @brief Return singleton instance of configuration object.
+configuration_t& configuration_t::instance()
+{
+ static configuration_t config;
+ return config;
+}
+
+can_bus_t& configuration_t::get_can_bus_manager()
+{
+ return can_bus_manager_;
+}
+
+const std::map<std::string, std::shared_ptr<can_bus_dev_t>>& configuration_t::get_can_bus_devices()
+{
+ return can_bus_manager_.get_can_devices();
+}
+
+diagnostic_manager_t& configuration_t::get_diagnostic_manager()
+{
+ return diagnostic_manager_;
+}
+
+uint8_t configuration_t::get_active_message_set() const
+{
+ return active_message_set_;
+}
+
+const std::vector<can_message_set_t>& configuration_t::get_can_message_set()
+{
+ return can_message_set_;
+}
+
+std::vector<can_signal_t>& configuration_t::get_can_signals()
+{
+ return can_signals_[active_message_set_];
+}
+
+std::vector<diagnostic_message_t>& configuration_t::get_diagnostic_messages()
+{
+ return diagnostic_messages_[active_message_set_];
+}
+
+const std::vector<can_message_definition_t>& configuration_t::get_can_message_definition()
+{
+ return can_message_definition_[active_message_set_];
+}
+
+const can_message_definition_t& configuration_t::get_can_message_definition(std::uint8_t message_set_id, std::uint8_t message_id)
+{
+ return can_message_definition_[message_set_id][message_id];
+}
+
+uint32_t configuration_t::get_signal_id(diagnostic_message_t& sig) const
+{
+ return sig.get_pid();
+}
+
+uint32_t configuration_t::get_signal_id(can_signal_t& sig) const
+{
+ return sig.get_message().get_id();
+}
+
+void configuration_t::set_active_message_set(uint8_t id)
+{
+ active_message_set_ = id;
+}
+
+
+diagnostic_message_t* configuration_t::get_diagnostic_message(std::string message_name) const
+{
+ struct utils::signals_found found;
+ found = utils::signals_manager_t::instance().find_signals(build_DynamicField(message_name));
+ if(! found.diagnostic_messages.empty())
+ return found.diagnostic_messages.front();
+ return nullptr;
+}
+
+DiagnosticRequest* configuration_t::get_request_from_diagnostic_message(std::string message_name) const
+{
+ diagnostic_message_t* diag_msg = get_diagnostic_message(message_name);
+ if( diag_msg != nullptr && diag_msg->get_supported())
+ return new DiagnosticRequest(diag_msg->build_diagnostic_request());
+ return nullptr;
+}
diff --git a/CAN-binder/low-can-binding/binding/configuration.hpp b/CAN-binder/low-can-binding/binding/configuration.hpp
new file mode 100644
index 0000000..a3ab8ca
--- /dev/null
+++ b/CAN-binder/low-can-binding/binding/configuration.hpp
@@ -0,0 +1,112 @@
+/*
+ * Copyright (C) 2015, 2016 "IoT.bzh"
+ * Author "Romain Forlot" <romain.forlot@iot.bzh>
+ *
+ * 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.
+ */
+
+#pragma once
+
+#include <map>
+#include <vector>
+#include <string>
+#include <fcntl.h>
+
+#include "can/can-bus.hpp"
+#include "can/can-signals.hpp"
+#include "can/can-message.hpp"
+#include "diagnostic/diagnostic-manager.hpp"
+
+#include "low-can-binding.hpp"
+
+///
+/// @brief Class representing a configuration attached to the binding.
+///
+/// It regroups all needed objects instance from other class
+/// that will be used along the binding life. It gets a global vision
+/// on which signals are implemented for that binding.
+/// Here, it is only the definition of the class with predefined accessors
+/// methods used in the binding.
+///
+/// It will be the reference point to needed objects.
+///
+class configuration_t
+{
+ private:
+ can_bus_t can_bus_manager_; ///< instanciate the CAN bus manager. It's the one in charge of initialize the CAN bus devices.
+ diagnostic_manager_t diagnostic_manager_; ///< Diagnostic manager use to manage diagnostic message communication.
+ uint8_t active_message_set_ = 0; ///< Which is the active message set ? Default to 0.
+
+ std::vector<can_message_set_t> can_message_set_; ///< Vector holding all message set from JSON signals description file
+ std::vector<std::vector<can_message_definition_t>> can_message_definition_; ///< Vector of vector holding all can message definition from JSON signals description file. This describe a CAN message. First vector map to message set
+ std::vector<std::vector<can_signal_t>> can_signals_; ///< Vector of vector holding all can signasl from JSON signals description file. A CAN signal is a part of a CAN message. First vector map to message set
+ std::vector<std::vector<diagnostic_message_t>> diagnostic_messages_; ///< Vector of vector holding all diagnostics messages from JSON signals description file. First vector map to message set
+
+ configuration_t(); ///< Private constructor with implementation generated by the AGL generator.
+
+ public:
+ static configuration_t& instance();
+
+ can_bus_t& get_can_bus_manager();
+
+ const std::map<std::string, std::shared_ptr<can_bus_dev_t>>& get_can_bus_devices();
+
+ const std::string get_diagnostic_bus() const;
+
+ diagnostic_manager_t& get_diagnostic_manager() ;
+
+ uint8_t get_active_message_set() const;
+
+ const std::vector<can_message_set_t>& get_can_message_set();
+
+ std::vector<can_signal_t>& get_can_signals();
+
+ std::vector<diagnostic_message_t>& get_diagnostic_messages();
+
+ const std::vector<std::string>& get_signals_prefix() const;
+
+ const std::vector<can_message_definition_t>& get_can_message_definition();
+ const can_message_definition_t& get_can_message_definition(std::uint8_t message_set_id, std::uint8_t message_id);
+
+ uint32_t get_signal_id(diagnostic_message_t& sig) const;
+
+ uint32_t get_signal_id(can_signal_t& sig) const;
+
+ void set_active_message_set(uint8_t id);
+
+ diagnostic_message_t* get_diagnostic_message(std::string message_name) const;
+ DiagnosticRequest* get_request_from_diagnostic_message(std::string message_name) const;
+/*
+ /// TODO: implement this function as method into can_bus class
+ /// @brief Pre initialize actions made before CAN bus initialization
+ /// @param[in] bus A CanBus struct defining the bus's metadata
+ /// @param[in] writable Configure the controller in a writable mode. If false, it will be configured as "listen only" and will not allow writes or even CAN ACKs.
+ /// @param[in] buses An array of all CAN buses.
+ void pre_initialize(can_bus_dev_t* bus, bool writable, can_bus_dev_t* buses, const int busCount);
+ /// TODO: implement this function as method into can_bus class
+ /// @brief Post-initialize actions made after CAN bus initialization
+ /// @param[in] bus A CanBus struct defining the bus's metadata
+ /// @param[in] writable Configure the controller in a writable mode. If false, it will be configured as "listen only" and will not allow writes or even CAN ACKs.
+ /// @param[in] buses An array of all CAN buses.
+ void post_initialize(can_bus_dev_t* bus, bool writable, can_bus_dev_t* buses, const int busCount);
+ /// TODO: implement this function as method into can_bus class
+ /// @brief Check if the device is connected to an active CAN bus, i.e. it's received a message in the recent past.
+ /// @return true if a message was received on the CAN bus within CAN_ACTIVE_TIMEOUT_S seconds.
+ void logBusStatistics(can_bus_dev_t* buses, const int busCount);
+ /// TODO: implement this function as method into can_bus class
+ /// @brief Log transfer statistics about all active CAN buses to the debug log.
+ /// @param[in] buses An array of active CAN buses.
+ bool isBusActive(can_bus_dev_t* bus);
+ */
+};
+
diff --git a/CAN-binder/low-can-binding/binding/low-can-binding.cpp b/CAN-binder/low-can-binding/binding/low-can-binding.cpp
new file mode 100644
index 0000000..484bb5c
--- /dev/null
+++ b/CAN-binder/low-can-binding/binding/low-can-binding.cpp
@@ -0,0 +1,296 @@
+/*
+ * Copyright (C) 2015, 2016 "IoT.bzh"
+ * Author "Romain Forlot" <romain.forlot@iot.bzh>
+ * Author "Loic Collignon" <loic.collignon@iot.bzh>
+ *
+ * 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 "low-can-binding.hpp"
+
+#include <map>
+#include <queue>
+#include <mutex>
+#include <vector>
+#include <thread>
+#include <time.h>
+#include <linux/can.h>
+#include <json-c/json.h>
+
+#include "openxc.pb.h"
+#include "configuration.hpp"
+#include "can/can-bus.hpp"
+#include "can/can-signals.hpp"
+#include "can/can-message.hpp"
+#include "utils/timer.hpp"
+#include "utils/signals.hpp"
+#include "diagnostic/diagnostic-message.hpp"
+#include "utils/openxc-utils.hpp"
+
+extern "C"
+{
+ #include <afb/afb-service-itf.h>
+};
+
+// Interface between the daemon and the binding
+const struct afb_binding_interface *binder_interface;
+
+void on_no_clients(std::string message)
+{
+ DiagnosticRequest* diag_req = configuration_t::instance().get_request_from_diagnostic_message(message);
+ if(diag_req != nullptr)
+ {
+ active_diagnostic_request_t* adr = configuration_t::instance().get_diagnostic_manager().find_recurring_request(diag_req);
+ if( adr != nullptr)
+ configuration_t::instance().get_diagnostic_manager().cleanup_request(adr, true);
+ }
+}
+
+///******************************************************************************
+///
+/// Subscription and unsubscription
+///
+///*******************************************************************************/
+
+static int make_subscription_unsubscription(struct afb_req request, const std::string& sig_name, std::map<std::string, struct afb_event>& s, bool subscribe)
+{
+ /* Make the subscription or unsubscription to the event */
+ if (((subscribe ? afb_req_subscribe : afb_req_unsubscribe)(request, s[sig_name])) < 0)
+ {
+ ERROR(binder_interface, "%s: Operation goes wrong for signal: %s", __FUNCTION__, sig_name.c_str());
+ return 0;
+ }
+ return 1;
+}
+
+static int create_event_handle(const std::string& sig_name, std::map<std::string, struct afb_event>& s)
+{
+ s[sig_name] = afb_daemon_make_event(binder_interface->daemon, sig_name.c_str());
+ if (!afb_event_is_valid(s[sig_name]))
+ {
+ ERROR(binder_interface, "%s: Can't create an event for %s, something goes wrong.", __FUNCTION__, sig_name.c_str());
+ return 0;
+ }
+ return 1;
+}
+
+/// @brief Will determine if it is needed or not to create the event handle and checks it to be sure that
+/// we got a valid afb_event to get subscribe or unsubscribe. Then launch the subscription or unsubscription
+/// against the application framework using that event handle.
+static int subscribe_unsubscribe_signal(struct afb_req request, bool subscribe, const std::string& sig)
+{
+ int ret;
+
+ utils::signals_manager_t& sm = utils::signals_manager_t::instance();
+
+ std::lock_guard<std::mutex> subscribed_signals_lock(sm.get_subscribed_signals_mutex());
+ std::map<std::string, struct afb_event>& s = sm.get_subscribed_signals();
+ if (s.find(sig) != s.end())
+ {
+ if (!afb_event_is_valid(s[sig]) && !subscribe)
+ {
+ NOTICE(binder_interface, "%s: Event isn't valid, no need to unsubscribed.", __FUNCTION__);
+ ret = -1;
+ }
+ else
+ {
+ // Event it isn't valid annymore, recreate it
+ ret = create_event_handle(sig, s);
+ }
+ }
+ else
+ {
+ /* Event doesn't exist , so let's create it */
+ struct afb_event empty_event = {nullptr, nullptr};
+ s[sig] = empty_event;
+ ret = create_event_handle(sig, s);
+ }
+
+ // Check whether or not the event handler has been correctly created and
+ // make the subscription/unsubscription operation is so.
+ if (ret <= 0)
+ return ret;
+ return make_subscription_unsubscription(request, sig, s, subscribe);
+}
+
+///
+/// @brief subscribe to all signals in the vector signals
+///
+/// @param[in] afb_req request : contain original request use to subscribe or unsubscribe
+/// @param[in] subscribe boolean value used to chose between a subscription operation or an unsubscription
+/// @param[in] signals - struct containing vectors with can_signal_t and diagnostic_messages to subscribe
+///
+/// @return Number of correctly subscribed signal
+///
+static int subscribe_unsubscribe_signals(struct afb_req request, bool subscribe, const struct utils::signals_found& signals)
+{
+ int ret, rets = 0;
+
+ //TODO: Implement way to dynamically call the right function no matter
+ // how much signals types we have.
+ configuration_t& conf = configuration_t::instance();
+
+ for(const auto& sig : signals.diagnostic_messages)
+ {
+ diagnostic_manager_t& diag_m = conf.get_diagnostic_manager();
+ DiagnosticRequest* diag_req = conf.get_request_from_diagnostic_message(sig->get_name());
+
+ // If the requested diagnostic message isn't supported by the car then unsubcribe it
+ // no matter what we want, worse case will be a fail unsubscription but at least we don't
+ // poll a PID for nothing.
+ if(sig->get_supported() && subscribe)
+ {
+ float frequency = sig->get_frequency();
+ subscribe = diag_m.add_recurring_request(
+ diag_req, sig->get_name().c_str(), false, sig->get_decoder(), sig->get_callback(), (float)frequency);
+ //TODO: Adding callback requesting ignition status: diag_req, sig.c_str(), false, diagnostic_message_t::decode_obd2_response, diagnostic_message_t::check_ignition_status, frequency);
+ }
+ else
+ {
+ diag_m.cleanup_request(
+ diag_m.find_recurring_request(diag_req), true);
+ WARNING(binder_interface, "%s: signal: %s isn't supported. Canceling operation.", __FUNCTION__, sig->get_name().c_str());
+ return -1;
+ }
+
+ ret = subscribe_unsubscribe_signal(request, subscribe, sig->get_name());
+ if(ret <= 0)
+ return ret;
+ rets++;
+ DEBUG(binder_interface, "%s: Signal: %s subscribed", __FUNCTION__, sig->get_name().c_str());
+ }
+
+ for(const auto& sig: signals.can_signals)
+ {
+ if(conf.get_can_bus_manager().create_rx_filter(*sig) <= 0 &&
+ subscribe_unsubscribe_signal(request, subscribe, sig->get_name()) <=0 )
+ {
+ return -1;
+ }
+ rets++;
+ DEBUG(binder_interface, "%s: signal: %s subscribed", __FUNCTION__, sig->get_name().c_str());
+ }
+ return rets;
+}
+
+static const std::vector<std::string> parse_args_from_request(struct afb_req request, bool subscribe)
+{
+ int i, n;
+ std::vector<std::string> ret;
+ struct json_object *args, *a, *x;
+
+ /* retrieve signals to subscribe */
+ args = afb_req_json(request);
+ if (args == NULL || !json_object_object_get_ex(args, "event", &a))
+ {
+ ret.push_back("*");
+ }
+ else if (json_object_get_type(a) != json_type_array)
+ {
+ ret.push_back(json_object_get_string(a));
+ }
+ else
+ {
+ n = json_object_array_length(a);
+ for (i = 0 ; i < n ; i++)
+ {
+ x = json_object_array_get_idx(a, i);
+ ret.push_back(json_object_get_string(x));
+ }
+ }
+
+ return ret;
+}
+
+extern "C"
+{
+ static void subscribe(struct afb_req request)
+ {
+ std::vector<std::string> args;
+ struct utils::signals_found sf;
+ int ok = 0, total = 0;
+ bool subscribe = true;
+
+ args = parse_args_from_request(request, subscribe);
+
+ for(const auto& sig: args)
+ {
+ openxc_DynamicField search_key = build_DynamicField(sig);
+ sf = utils::signals_manager_t::instance().find_signals(search_key);
+ total = (int)sf.can_signals.size() + (int)sf.diagnostic_messages.size();
+
+ if (sf.can_signals.empty() && sf.diagnostic_messages.empty())
+ NOTICE(binder_interface, "%s: No signal(s) found for %s.", __FUNCTION__, sig.c_str());
+ else
+ ok = subscribe_unsubscribe_signals(request, subscribe, sf);
+ }
+
+ NOTICE(binder_interface, "%s: Subscribed/unsubscribe correctly to %d/%d signal(s).", __FUNCTION__, ok, total);
+ if (ok > 0)
+ afb_req_success(request, NULL, NULL);
+ else
+ afb_req_fail(request, "error", NULL);
+ }
+
+ static void unsubscribe(struct afb_req request)
+ {
+ parse_args_from_request(request, false);
+ }
+
+ static const struct afb_verb_desc_v1 verbs[]=
+ {
+ { .name= "subscribe", .session= AFB_SESSION_NONE, .callback= subscribe, .info= "subscribe to notification of CAN bus messages." },
+ { .name= "unsubscribe", .session= AFB_SESSION_NONE, .callback= unsubscribe, .info= "unsubscribe a previous subscription." }
+ };
+
+ static const struct afb_binding binding_desc {
+ AFB_BINDING_VERSION_1,
+ {
+ "Low level CAN bus service",
+ "low-can",
+ verbs
+ }
+ };
+
+ const struct afb_binding *afbBindingV1Register (const struct afb_binding_interface *itf)
+ {
+ binder_interface = itf;
+
+ return &binding_desc;
+ }
+
+ /// @brief Initialize the binding.
+ ///
+ /// @param[in] service Structure which represent the Application Framework Binder.
+ ///
+ /// @return Exit code, zero if success.
+ int afbBindingV1ServiceInit(struct afb_service service)
+ {
+ can_bus_t& can_bus_manager = configuration_t::instance().get_can_bus_manager();
+
+ /// Initialize CAN socket
+ if(can_bus_manager.init_can_dev() == 0)
+ {
+ can_bus_manager.start_threads();
+
+ /// Initialize Diagnostic manager that will handle obd2 requests.
+ /// We pass by default the first CAN bus device to its Initialization.
+ /// TODO: be able to choose the CAN bus device that will be use as Diagnostic bus.
+ if(configuration_t::instance().get_diagnostic_manager().initialize())
+ return 0;
+ }
+
+ ERROR(binder_interface, "%s: There was something wrong with CAN device Initialization. Check your config file maybe", __FUNCTION__);
+ return 1;
+ }
+};
diff --git a/CAN-binder/low-can-binding/binding/low-can-binding.hpp b/CAN-binder/low-can-binding/binding/low-can-binding.hpp
new file mode 100644
index 0000000..ed5741d
--- /dev/null
+++ b/CAN-binder/low-can-binding/binding/low-can-binding.hpp
@@ -0,0 +1,33 @@
+/*
+ * Copyright (C) 2015, 2016 "IoT.bzh"
+ * Author "Romain Forlot" <romain.forlot@iot.bzh>
+ * Author "Loic Collignon" <loic.collignon@iot.bzh>
+ *
+ * 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.
+ */
+
+#pragma once
+
+#include <cstddef>
+#include <string>
+
+extern "C"
+{
+ #include <afb/afb-binding.h>
+};
+
+extern "C" struct afb_binding_interface;
+
+extern const struct afb_binding_interface *binder_interface;
+
+void on_no_clients(std::string message); \ No newline at end of file