Separation Generator to a dedicated repo

Change-Id: Id94831651c3266861435272a6e36c7884bef2c45
Signed-off-by: Romain Forlot <romain.forlot@iot.bzh>

8 files changed, 1614 insertions, 0 deletions

diff --git a/low-can-binding/binding/application-generated.cpp b/low-can-binding/binding/application-generated.cpp
new file mode 100644
index 00000000..60a21f51
--- /dev/null
+++ b/low-can-binding/binding/application-generated.cpp
@@ -0,0 +1,564 @@
+#include "application.hpp"
+#include "../can/can-decoder.hpp"
+
+application_t::application_t()
+	: can_bus_manager_{utils::config_parser_t{"/etc/dev-mapping.conf"}}
+	, can_message_set_{
+		{std::make_shared<can_message_set_t>(can_message_set_t{0,"example",
+			{ // beginning can_message_definition_ vector
+				{std::make_shared<can_message_definition_t>(can_message_definition_t{"hs",0x3D9,can_message_format_t::STANDARD,frequency_clock_t(5.00000f),true,
+					{ // beginning can_signals vector
+						{std::make_shared<can_signal_t> (can_signal_t{
+							"engine.speed",
+							16,
+							16,
+							0.250000f,
+							0.00000,
+							0,
+							0,
+							frequency_clock_t(0.00000f),
+							true,
+							false,
+							{
+							},
+							false,
+							nullptr,
+							nullptr,
+							false
+						})},
+						{std::make_shared<can_signal_t> (can_signal_t{
+							"fuel.level.low",
+							55,
+							1,
+							1.00000f,
+							0.00000,
+							0,
+							0,
+							frequency_clock_t(0.00000f),
+							true,
+							false,
+							{
+							},
+							false,
+							decoder_t::booleanDecoder,
+							nullptr,
+							false
+						})},
+						{std::make_shared<can_signal_t> (can_signal_t{
+							"fuel.level",
+							8,
+							8,
+							0.392157f,
+							0.00000,
+							0,
+							0,
+							frequency_clock_t(0.00000f),
+							true,
+							false,
+							{
+							},
+							false,
+							nullptr,
+							nullptr,
+							false
+						})}
+					} // end can_signals vector
+				})} // end can_message_definition entry
+,				{std::make_shared<can_message_definition_t>(can_message_definition_t{"hs",0x3E9,can_message_format_t::STANDARD,frequency_clock_t(5.00000f),true,
+					{ // beginning can_signals vector
+						{std::make_shared<can_signal_t> (can_signal_t{
+							"vehicle.average.speed",
+							0,
+							15,
+							0.0156250f,
+							0.00000,
+							0,
+							0,
+							frequency_clock_t(0.00000f),
+							true,
+							false,
+							{
+							},
+							false,
+							nullptr,
+							nullptr,
+							false
+						})}
+					} // end can_signals vector
+				})} // end can_message_definition entry
+,				{std::make_shared<can_message_definition_t>(can_message_definition_t{"hs",0x4D1,can_message_format_t::STANDARD,frequency_clock_t(5.00000f),true,
+					{ // beginning can_signals vector
+						{std::make_shared<can_signal_t> (can_signal_t{
+							"engine.oil.temp",
+							16,
+							8,
+							1.00000f,
+							0.00000,
+							0,
+							0,
+							frequency_clock_t(0.00000f),
+							true,
+							false,
+							{
+							},
+							false,
+							nullptr,
+							nullptr,
+							false
+						})},
+						{std::make_shared<can_signal_t> (can_signal_t{
+							"engine.oil.temp.high",
+							7,
+							1,
+							1.00000f,
+							0.00000,
+							0,
+							0,
+							frequency_clock_t(0.00000f),
+							true,
+							false,
+							{
+							},
+							false,
+							decoder_t::booleanDecoder,
+							nullptr,
+							false
+						})}
+					} // end can_signals vector
+				})} // end can_message_definition entry
+,				{std::make_shared<can_message_definition_t>(can_message_definition_t{"hs",0x620,can_message_format_t::STANDARD,frequency_clock_t(5.00000f),true,
+					{ // beginning can_signals vector
+						{std::make_shared<can_signal_t> (can_signal_t{
+							"doors.boot.open",
+							47,
+							1,
+							1.00000f,
+							0.00000,
+							0,
+							0,
+							frequency_clock_t(0.00000f),
+							true,
+							false,
+							{
+							},
+							false,
+							decoder_t::booleanDecoder,
+							nullptr,
+							false
+						})},
+						{std::make_shared<can_signal_t> (can_signal_t{
+							"doors.front_left.open",
+							43,
+							1,
+							1.00000f,
+							0.00000,
+							0,
+							0,
+							frequency_clock_t(0.00000f),
+							true,
+							false,
+							{
+							},
+							false,
+							decoder_t::booleanDecoder,
+							nullptr,
+							false
+						})},
+						{std::make_shared<can_signal_t> (can_signal_t{
+							"doors.front_right.open",
+							44,
+							1,
+							1.00000f,
+							0.00000,
+							0,
+							0,
+							frequency_clock_t(0.00000f),
+							true,
+							false,
+							{
+							},
+							false,
+							decoder_t::booleanDecoder,
+							nullptr,
+							false
+						})},
+						{std::make_shared<can_signal_t> (can_signal_t{
+							"doors.rear_left.open",
+							46,
+							1,
+							1.00000f,
+							0.00000,
+							0,
+							0,
+							frequency_clock_t(0.00000f),
+							true,
+							false,
+							{
+							},
+							false,
+							decoder_t::booleanDecoder,
+							nullptr,
+							false
+						})},
+						{std::make_shared<can_signal_t> (can_signal_t{
+							"doors.rear_right.open",
+							45,
+							4,
+							1.00000f,
+							0.00000,
+							0,
+							0,
+							frequency_clock_t(0.00000f),
+							true,
+							false,
+							{
+							},
+							false,
+							decoder_t::booleanDecoder,
+							nullptr,
+							false
+						})}
+					} // end can_signals vector
+				})} // end can_message_definition entry
+,				{std::make_shared<can_message_definition_t>(can_message_definition_t{"hs",0x799,can_message_format_t::STANDARD,frequency_clock_t(5.00000f),true,
+					{ // beginning can_signals vector
+						{std::make_shared<can_signal_t> (can_signal_t{
+							"windows.front_left.open",
+							43,
+							1,
+							1.00000f,
+							0.00000,
+							0,
+							0,
+							frequency_clock_t(0.00000f),
+							true,
+							false,
+							{
+							},
+							false,
+							decoder_t::booleanDecoder,
+							nullptr,
+							false
+						})},
+						{std::make_shared<can_signal_t> (can_signal_t{
+							"windows.front_right.open",
+							44,
+							1,
+							1.00000f,
+							0.00000,
+							0,
+							0,
+							frequency_clock_t(0.00000f),
+							true,
+							false,
+							{
+							},
+							false,
+							decoder_t::booleanDecoder,
+							nullptr,
+							false
+						})},
+						{std::make_shared<can_signal_t> (can_signal_t{
+							"windows.rear_left.open",
+							46,
+							1,
+							1.00000f,
+							0.00000,
+							0,
+							0,
+							frequency_clock_t(0.00000f),
+							true,
+							false,
+							{
+							},
+							false,
+							decoder_t::booleanDecoder,
+							nullptr,
+							false
+						})},
+						{std::make_shared<can_signal_t> (can_signal_t{
+							"windows.rear_right.open",
+							45,
+							4,
+							1.00000f,
+							0.00000,
+							0,
+							0,
+							frequency_clock_t(0.00000f),
+							true,
+							false,
+							{
+							},
+							false,
+							decoder_t::booleanDecoder,
+							nullptr,
+							false
+						})}
+					} // end can_signals vector
+				})} // end can_message_definition entry
+
+		}, // end can_message_definition vector
+			{ // beginning diagnostic_messages_ vector
+				{std::make_shared<diagnostic_message_t>(diagnostic_message_t{
+					4,
+					"engine.load",
+					0,
+					0,
+					UNIT::INVALID,
+					5.00000f,
+					decoder_t::decode_obd2_response,
+					nullptr,
+					true
+				})}
+,				{std::make_shared<diagnostic_message_t>(diagnostic_message_t{
+					5,
+					"engine.coolant.temperature",
+					0,
+					0,
+					UNIT::INVALID,
+					1.00000f,
+					decoder_t::decode_obd2_response,
+					nullptr,
+					true
+				})}
+,				{std::make_shared<diagnostic_message_t>(diagnostic_message_t{
+					10,
+					"fuel.pressure",
+					0,
+					0,
+					UNIT::INVALID,
+					1.00000f,
+					decoder_t::decode_obd2_response,
+					nullptr,
+					true
+				})}
+,				{std::make_shared<diagnostic_message_t>(diagnostic_message_t{
+					11,
+					"intake.manifold.pressure",
+					0,
+					0,
+					UNIT::INVALID,
+					1.00000f,
+					decoder_t::decode_obd2_response,
+					nullptr,
+					true
+				})}
+,				{std::make_shared<diagnostic_message_t>(diagnostic_message_t{
+					12,
+					"engine.speed",
+					0,
+					0,
+					UNIT::INVALID,
+					5.00000f,
+					decoder_t::decode_obd2_response,
+					nullptr,
+					true
+				})}
+,				{std::make_shared<diagnostic_message_t>(diagnostic_message_t{
+					13,
+					"vehicle.speed",
+					0,
+					0,
+					UNIT::INVALID,
+					5.00000f,
+					decoder_t::decode_obd2_response,
+					nullptr,
+					true
+				})}
+,				{std::make_shared<diagnostic_message_t>(diagnostic_message_t{
+					15,
+					"intake.air.temperature",
+					0,
+					0,
+					UNIT::INVALID,
+					1.00000f,
+					decoder_t::decode_obd2_response,
+					nullptr,
+					true
+				})}
+,				{std::make_shared<diagnostic_message_t>(diagnostic_message_t{
+					16,
+					"mass.airflow",
+					0,
+					0,
+					UNIT::INVALID,
+					5.00000f,
+					decoder_t::decode_obd2_response,
+					nullptr,
+					true
+				})}
+,				{std::make_shared<diagnostic_message_t>(diagnostic_message_t{
+					17,
+					"throttle.position",
+					0,
+					0,
+					UNIT::INVALID,
+					5.00000f,
+					decoder_t::decode_obd2_response,
+					nullptr,
+					true
+				})}
+,				{std::make_shared<diagnostic_message_t>(diagnostic_message_t{
+					31,
+					"running.time",
+					0,
+					0,
+					UNIT::INVALID,
+					1.00000f,
+					decoder_t::decode_obd2_response,
+					nullptr,
+					true
+				})}
+,				{std::make_shared<diagnostic_message_t>(diagnostic_message_t{
+					45,
+					"EGR.error",
+					0,
+					0,
+					UNIT::INVALID,
+					0.00000f,
+					decoder_t::decode_obd2_response,
+					nullptr,
+					true
+				})}
+,				{std::make_shared<diagnostic_message_t>(diagnostic_message_t{
+					47,
+					"fuel.level",
+					0,
+					0,
+					UNIT::INVALID,
+					1.00000f,
+					decoder_t::decode_obd2_response,
+					nullptr,
+					true
+				})}
+,				{std::make_shared<diagnostic_message_t>(diagnostic_message_t{
+					51,
+					"barometric.pressure",
+					0,
+					0,
+					UNIT::INVALID,
+					1.00000f,
+					decoder_t::decode_obd2_response,
+					nullptr,
+					true
+				})}
+,				{std::make_shared<diagnostic_message_t>(diagnostic_message_t{
+					70,
+					"ambient.air.temperature",
+					0,
+					0,
+					UNIT::INVALID,
+					1.00000f,
+					decoder_t::decode_obd2_response,
+					nullptr,
+					true
+				})}
+,				{std::make_shared<diagnostic_message_t>(diagnostic_message_t{
+					76,
+					"commanded.throttle.position",
+					0,
+					0,
+					UNIT::INVALID,
+					1.00000f,
+					decoder_t::decode_obd2_response,
+					nullptr,
+					true
+				})}
+,				{std::make_shared<diagnostic_message_t>(diagnostic_message_t{
+					82,
+					"ethanol.fuel.percentage",
+					0,
+					0,
+					UNIT::INVALID,
+					1.00000f,
+					decoder_t::decode_obd2_response,
+					nullptr,
+					true
+				})}
+,				{std::make_shared<diagnostic_message_t>(diagnostic_message_t{
+					90,
+					"accelerator.pedal.position",
+					0,
+					0,
+					UNIT::INVALID,
+					5.00000f,
+					decoder_t::decode_obd2_response,
+					nullptr,
+					true
+				})}
+,				{std::make_shared<diagnostic_message_t>(diagnostic_message_t{
+					91,
+					"hybrid.battery-pack.remaining.life",
+					0,
+					0,
+					UNIT::INVALID,
+					5.00000f,
+					decoder_t::decode_obd2_response,
+					nullptr,
+					true
+				})}
+,				{std::make_shared<diagnostic_message_t>(diagnostic_message_t{
+					92,
+					"engine.oil.temperature",
+					0,
+					0,
+					UNIT::INVALID,
+					1.00000f,
+					decoder_t::decode_obd2_response,
+					nullptr,
+					true
+				})}
+,				{std::make_shared<diagnostic_message_t>(diagnostic_message_t{
+					94,
+					"engine.fuel.rate",
+					0,
+					0,
+					UNIT::INVALID,
+					1.00000f,
+					decoder_t::decode_obd2_response,
+					nullptr,
+					true
+				})}
+,				{std::make_shared<diagnostic_message_t>(diagnostic_message_t{
+					99,
+					"engine.torque",
+					0,
+					0,
+					UNIT::INVALID,
+					1.00000f,
+					decoder_t::decode_obd2_response,
+					nullptr,
+					true
+				})}
+
+			} // end diagnostic_messages_ vector
+		})} // end can_message_set entry
+	} // end can_message_set vector
+{
+	for(auto& cms: can_message_set_)
+	{
+		std::vector<std::shared_ptr<can_message_definition_t> >& can_messages_definition = cms->get_can_message_definition();
+		for(auto& cmd : can_messages_definition)
+		{
+			cmd->set_parent(cms.get());
+			std::vector<std::shared_ptr<can_signal_t> >& can_signals = cmd->get_can_signals();
+			for(auto& sig: can_signals)
+			{
+				sig->set_parent(cmd.get());
+			}
+		}
+
+		std::vector<std::shared_ptr<diagnostic_message_t> >& diagnostic_messages = cms->get_diagnostic_messages();
+		for(auto& dm : diagnostic_messages)
+		{
+			dm->set_parent(cms.get());
+		}
+	}
+		}
+
+const std::string application_t::get_diagnostic_bus() const
+{
+	return "hs";
+}
+
+
diff --git a/low-can-binding/binding/application.cpp b/low-can-binding/binding/application.cpp
new file mode 100644
index 00000000..6e6353b8
--- /dev/null
+++ b/low-can-binding/binding/application.cpp
@@ -0,0 +1,78 @@
+/*
+ * 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 "application.hpp"
+
+#include "../utils/signals.hpp"
+#include "../utils/openxc-utils.hpp"
+
+/// @brief Return singleton instance of configuration object.
+application_t& application_t::instance()
+{
+	static application_t config;
+	return config;
+}
+
+can_bus_t& application_t::get_can_bus_manager()
+{
+	return can_bus_manager_;
+}
+
+diagnostic_manager_t& application_t::get_diagnostic_manager()
+{
+	return diagnostic_manager_;
+}
+
+uint8_t application_t::get_active_message_set() const
+{
+	return active_message_set_;
+}
+
+std::vector<std::shared_ptr<can_message_set_t> > application_t::get_can_message_set()
+{
+	return can_message_set_;
+}
+
+std::vector<std::shared_ptr<can_signal_t> > application_t::get_all_can_signals()
+{
+	return can_message_set_[active_message_set_]->get_all_can_signals();
+}
+
+std::vector<std::shared_ptr<diagnostic_message_t> >& application_t::get_diagnostic_messages()
+{
+	return can_message_set_[active_message_set_]->get_diagnostic_messages();
+}
+
+std::vector<std::shared_ptr<can_message_definition_t> >& application_t::get_can_message_definition()
+{
+	return can_message_set_[active_message_set_]->get_can_message_definition();
+}
+
+uint32_t application_t::get_signal_id(diagnostic_message_t& sig) const
+{
+	return sig.get_pid();
+}
+
+uint32_t application_t::get_signal_id(can_signal_t& sig) const
+{
+	return sig.get_message()->get_id();
+}
+
+void application_t::set_active_message_set(uint8_t id)
+{
+	active_message_set_ = id;
+}
diff --git a/low-can-binding/binding/application.hpp b/low-can-binding/binding/application.hpp
new file mode 100644
index 00000000..5fa64782
--- /dev/null
+++ b/low-can-binding/binding/application.hpp
@@ -0,0 +1,104 @@
+/*
+ * 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 <memory>
+
+#include "../can/can-bus.hpp"
+#include "../can/can-message-set.hpp"
+#include "../can/can-signals.hpp"
+#include "../diagnostic/diagnostic-manager.hpp"
+
+#include "low-can-hat.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 application_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<std::shared_ptr<can_message_set_t> > can_message_set_; ///< Vector holding all message set from JSON signals description file
+
+		application_t(); ///< Private constructor with implementation generated by the AGL generator.
+
+	public:
+		static application_t& instance();
+
+		can_bus_t& get_can_bus_manager();
+
+		const std::string get_diagnostic_bus() const;
+
+		diagnostic_manager_t& get_diagnostic_manager() ;
+
+		uint8_t get_active_message_set() const;
+
+		std::vector<std::shared_ptr<can_message_set_t> > get_can_message_set();
+
+		std::vector<std::shared_ptr<can_signal_t> > get_all_can_signals();
+
+		std::vector<std::shared_ptr<diagnostic_message_t> >& get_diagnostic_messages();
+
+		const std::vector<std::string>& get_signals_prefix() const;
+
+		std::vector<std::shared_ptr<can_message_definition_t> >& get_can_message_definition();
+
+		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);
+
+/*
+		/// 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/low-can-binding/binding/low-can-cb.cpp b/low-can-binding/binding/low-can-cb.cpp
new file mode 100644
index 00000000..97b6d206
--- /dev/null
+++ b/low-can-binding/binding/low-can-cb.cpp
@@ -0,0 +1,358 @@
+/*
+ * 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-hat.hpp"
+
+#include <map>
+#include <queue>
+#include <mutex>
+#include <vector>
+#include <thread>
+#include <json-c/json.h>
+#include <systemd/sd-event.h>
+
+#include "openxc.pb.h"
+#include "application.hpp"
+#include "../can/can-bus.hpp"
+#include "../can/can-signals.hpp"
+#include "../can/can-message.hpp"
+#include "../utils/signals.hpp"
+#include "../diagnostic/diagnostic-message.hpp"
+#include "../utils/openxc-utils.hpp"
+
+
+///******************************************************************************
+///
+///		SystemD event loop Callbacks
+///
+///*******************************************************************************/
+
+void on_no_clients(std::shared_ptr<low_can_subscription_t> can_subscription, uint32_t pid, std::map<int, std::shared_ptr<low_can_subscription_t> >& s)
+{
+	if( ! can_subscription->get_diagnostic_message().empty() && can_subscription->get_diagnostic_message(pid) != nullptr)
+	{
+		DiagnosticRequest diag_req = can_subscription->get_diagnostic_message(pid)->build_diagnostic_request();
+		active_diagnostic_request_t* adr = application_t::instance().get_diagnostic_manager().find_recurring_request(diag_req);
+		if( adr != nullptr)
+			application_t::instance().get_diagnostic_manager().cleanup_request(adr, true);
+	}
+
+	on_no_clients(can_subscription, s);
+}
+
+void on_no_clients(std::shared_ptr<low_can_subscription_t> can_subscription, std::map<int, std::shared_ptr<low_can_subscription_t> >& s)
+{
+	auto it = s.find(can_subscription->get_index());
+	s.erase(it);
+}
+
+static void push_n_notify(const can_message_t& cm)
+{
+	can_bus_t& cbm = application_t::instance().get_can_bus_manager();
+	{
+		std::lock_guard<std::mutex> can_message_lock(cbm.get_can_message_mutex());
+	 	cbm.push_new_can_message(cm);
+	}
+	cbm.get_new_can_message_cv().notify_one();
+}
+
+int read_message(sd_event_source *event_source, int fd, uint32_t revents, void *userdata)
+{
+	low_can_subscription_t* can_subscription = (low_can_subscription_t*)userdata;
+	if ((revents & EPOLLIN) != 0)
+	{
+		can_message_t cm;
+		utils::socketcan_bcm_t& s = can_subscription->get_socket();
+		s >> cm;
+
+		// Sure we got a valid CAN message ?
+		if(! cm.get_id() == 0 && ! cm.get_length() == 0)
+			{push_n_notify(cm);}
+	}
+
+	// check if error or hangup
+	if ((revents & (EPOLLERR|EPOLLRDHUP|EPOLLHUP)) != 0)
+	{
+		sd_event_source_unref(event_source);
+		can_subscription->get_socket().close();
+	}
+	return 0;
+}
+
+///******************************************************************************
+///
+///		Subscription and unsubscription
+///
+///*******************************************************************************/
+
+static int make_subscription_unsubscription(struct afb_req request, std::shared_ptr<low_can_subscription_t>& can_subscription, std::map<int, std::shared_ptr<low_can_subscription_t> >& s, bool subscribe)
+{
+	/* Make the subscription or unsubscription to the event */
+	if (((subscribe ? afb_req_subscribe : afb_req_unsubscribe)(request, s[can_subscription->get_index()]->get_event())) < 0)
+	{
+		ERROR("Operation goes wrong for signal: %s", can_subscription->get_name().c_str());
+		return -1;
+	}
+	return 0;
+}
+
+static int create_event_handle(std::shared_ptr<low_can_subscription_t>& can_subscription, std::map<int, std::shared_ptr<low_can_subscription_t> >& s)
+{
+	int sub_index = can_subscription->get_index();
+	can_subscription->set_event(afb_daemon_make_event(can_subscription->get_name().c_str()));
+	s[sub_index] = can_subscription;
+	if (!afb_event_is_valid(s[sub_index]->get_event()))
+	{
+		ERROR("Can't create an event for %s, something goes wrong.", can_subscription->get_name().c_str());
+		return -1;
+	}
+	return 0;
+}
+
+/// @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, std::shared_ptr<low_can_subscription_t>& can_subscription, std::map<int, std::shared_ptr<low_can_subscription_t> >& s)
+{
+	int ret = -1;
+	int sub_index = can_subscription->get_index();
+
+	if (can_subscription && s.find(sub_index) != s.end())
+	{
+		if (!afb_event_is_valid(s[sub_index]->get_event()) && !subscribe)
+		{
+			NOTICE("Event isn't valid, no need to unsubscribed.");
+			ret = -1;
+		}
+		ret = 0;
+	}
+	else
+	{
+		/* Event doesn't exist , so let's create it */
+		can_subscription->set_event({nullptr, nullptr});
+		s[sub_index] = can_subscription;
+		ret = create_event_handle(can_subscription, 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, can_subscription, s, subscribe);
+}
+
+static int add_to_event_loop(std::shared_ptr<low_can_subscription_t>& can_subscription)
+{
+		struct sd_event_source* event_source = nullptr;
+		return ( sd_event_add_io(afb_daemon_get_event_loop(),
+			&event_source,
+			can_subscription->get_socket().socket(),
+			EPOLLIN,
+			read_message,
+			can_subscription.get()));
+}
+
+static int subscribe_unsubscribe_diagnostic_messages(struct afb_req request, bool subscribe, std::vector<std::shared_ptr<diagnostic_message_t> > diagnostic_messages, struct event_filter_t& event_filter, std::map<int, std::shared_ptr<low_can_subscription_t> >& s)
+{
+	int rets = 0;
+	application_t& app = application_t::instance();
+	diagnostic_manager_t& diag_m = app.get_diagnostic_manager();
+
+	for(const auto& sig : diagnostic_messages)
+	{
+		DiagnosticRequest* diag_req = new DiagnosticRequest(sig->build_diagnostic_request());
+		event_filter.frequency = std::isnan(event_filter.frequency) ? sig->get_frequency() : event_filter.frequency;
+		std::shared_ptr<low_can_subscription_t> can_subscription;
+
+		auto it =  std::find_if(s.begin(), s.end(), [&sig](std::pair<int, std::shared_ptr<low_can_subscription_t> > sub){ return (! sub.second->get_diagnostic_message().empty());});
+		can_subscription = it != s.end() ?
+			it->second : 
+			std::make_shared<low_can_subscription_t>(low_can_subscription_t(event_filter));
+		// 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.
+		//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);
+		if(sig->get_supported() && subscribe)
+		{
+			diag_m.add_recurring_request(diag_req, sig->get_name().c_str(), false, sig->get_decoder(), sig->get_callback(), event_filter.frequency);
+			if(can_subscription->create_rx_filter(sig) < 0)
+				{return -1;}
+			DEBUG("Signal: %s subscribed", sig->get_name().c_str());
+			if(it == s.end() && add_to_event_loop(can_subscription) < 0)
+			{
+				diag_m.cleanup_request(
+					diag_m.find_recurring_request(*diag_req), true);
+				WARNING("signal: %s isn't supported. Canceling operation.",  sig->get_name().c_str());
+				return -1;
+			}
+		}
+		else
+		{
+			if(sig->get_supported())
+			{DEBUG("%s cancelled due to unsubscribe", sig->get_name().c_str());}
+			else
+			{
+				WARNING("signal: %s isn't supported. Canceling operation.", sig->get_name().c_str());
+				return -1;
+			}
+		}
+		int ret = subscribe_unsubscribe_signal(request, subscribe, can_subscription, s);
+		if(ret < 0)
+			return ret;
+
+		rets++;
+	}
+
+	return rets;
+}
+
+static int subscribe_unsubscribe_can_signals(struct afb_req request, bool subscribe, std::vector<std::shared_ptr<can_signal_t> > can_signals, struct event_filter_t& event_filter, std::map<int, std::shared_ptr<low_can_subscription_t> >& s)
+{
+	int rets = 0;
+	for(const auto& sig: can_signals)
+	{
+		auto it =  std::find_if(s.begin(), s.end(), [&sig](std::pair<int, std::shared_ptr<low_can_subscription_t> > sub){ return sub.second->get_can_signal() == sig; });
+		std::shared_ptr<low_can_subscription_t> can_subscription;
+		if(it != s.end())
+		{
+			 can_subscription = it->second;
+		}
+		else
+		{
+			 can_subscription = std::make_shared<low_can_subscription_t>(low_can_subscription_t(event_filter));
+			if(can_subscription->create_rx_filter(sig) < 0)
+				{return -1;}
+			if(add_to_event_loop(can_subscription) < 0)
+				{return -1;}
+		}
+
+		if(subscribe_unsubscribe_signal(request, subscribe, can_subscription, s) < 0)
+			{return -1;}
+
+		rets++;
+		DEBUG("signal: %s subscribed", sig->get_name().c_str());
+	}
+	return rets;
+}
+
+///
+/// @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, struct event_filter_t& event_filter)
+{
+	int rets = 0;
+	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<int, std::shared_ptr<low_can_subscription_t> >& s = sm.get_subscribed_signals();
+
+	rets += subscribe_unsubscribe_diagnostic_messages(request, subscribe, signals.diagnostic_messages, event_filter, s);
+	rets += subscribe_unsubscribe_can_signals(request, subscribe, signals.can_signals, event_filter, s);
+
+	return rets;
+}
+
+static int one_subscribe_unsubscribe(struct afb_req request, bool subscribe, const std::string& tag, json_object* args)
+{
+	int ret = 0;
+	struct event_filter_t event_filter;
+	struct json_object  *filter, *obj;
+	struct utils::signals_found sf;
+
+	// computes the filter
+	if (json_object_object_get_ex(args, "filter", &filter))
+	{
+		if (json_object_object_get_ex(filter, "frequency", &obj)
+		&& (json_object_is_type(obj, json_type_double) || json_object_is_type(obj, json_type_int)))
+		{
+			event_filter.frequency = (float)json_object_get_double(obj);
+			ret += 1;
+		}
+		if (json_object_object_get_ex(filter, "min", &obj)
+		&& (json_object_is_type(obj, json_type_double) || json_object_is_type(obj, json_type_int)))
+		{
+			event_filter.min = (float)json_object_get_double(obj);
+			ret += 2;
+		}
+		if (json_object_object_get_ex(filter, "max", &obj)
+		&& (json_object_is_type(obj, json_type_double) || json_object_is_type(obj, json_type_int)))
+		{
+			event_filter.max = (float)json_object_get_double(obj);
+			ret += 4;
+		}
+	}
+
+	// subscribe or unsubscribe
+	openxc_DynamicField search_key = build_DynamicField(tag);
+	sf = utils::signals_manager_t::instance().find_signals(search_key);
+	if (sf.can_signals.empty() && sf.diagnostic_messages.empty())
+		NOTICE("No signal(s) found for %s.", tag.c_str());
+	else
+		ret = subscribe_unsubscribe_signals(request, subscribe, sf, event_filter);
+
+	return ret;
+}
+
+static void do_subscribe_unsubscribe(struct afb_req request, bool subscribe)
+{
+	int i, n, rc, rc2;
+	struct json_object *args, *event, *x;
+
+	args = afb_req_json(request);
+	if (args == NULL || !json_object_object_get_ex(args, "event", &event))
+	{
+		rc = one_subscribe_unsubscribe(request, subscribe, "*", args);
+	}
+	else if (json_object_get_type(event) != json_type_array)
+	{
+		rc = one_subscribe_unsubscribe(request, subscribe, json_object_get_string(event), args);
+	}
+	else
+	{
+		rc = 0;
+		n = json_object_array_length(event);
+		for (i = 0 ; i < n ; i++)
+		{
+			x = json_object_array_get_idx(event, i);
+			rc2 = one_subscribe_unsubscribe(request, subscribe, json_object_get_string(x), args);
+			if (rc >= 0)
+				rc = rc2 >= 0 ? rc + rc2 : rc2;
+		}
+	}
+
+	if (rc >= 0)
+		afb_req_success(request, NULL, NULL);
+	else
+		afb_req_fail(request, "error", NULL);
+}
+
+void subscribe(struct afb_req request)
+{
+	do_subscribe_unsubscribe(request, true);
+}
+
+void unsubscribe(struct afb_req request)
+{
+	do_subscribe_unsubscribe(request, false);
+}
diff --git a/low-can-binding/binding/low-can-hat.cpp b/low-can-binding/binding/low-can-hat.cpp
new file mode 100644
index 00000000..7113b69a
--- /dev/null
+++ b/low-can-binding/binding/low-can-hat.cpp
@@ -0,0 +1,73 @@
+/*
+ * 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-hat.hpp"
+#include "low-can-subscription.hpp"
+
+#include <map>
+#include <queue>
+#include <mutex>
+#include <vector>
+#include <json-c/json.h>
+
+#include "application.hpp"
+#include "../can/can-bus.hpp"
+
+extern "C"
+{
+	static int initv2();
+
+	static const struct afb_verb_v2 verbs[]=
+	{
+		{ .verb= "subscribe", .callback= subscribe, .auth= NULL, .session= AFB_SESSION_NONE},
+		{ .verb= "unsubscribe", .callback= unsubscribe, .auth= NULL, .session= AFB_SESSION_NONE},
+		{ .verb= NULL, .callback= NULL, .auth= NULL, .session= 0}
+	};
+
+	const struct afb_binding_v2 afbBindingV2 {
+		.api = "low-can",
+		.specification = NULL,
+		.verbs = verbs,
+		.preinit = NULL,
+		.init = initv2,
+		.onevent = NULL,
+		.noconcurrency = 0
+	};
+
+	/// @brief Initialize the binding.
+	///
+	/// @param[in] service Structure which represent the Application Framework Binder.
+	///
+	/// @return Exit code, zero if success.
+	static int initv2()
+	{
+		can_bus_t& can_bus_manager = application_t::instance().get_can_bus_manager();
+
+		can_bus_manager.set_can_devices();
+		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(application_t::instance().get_diagnostic_manager().initialize())
+			return 0;
+
+		ERROR("There was something wrong with CAN device Initialization.");
+		return 1;
+	}
+};
diff --git a/low-can-binding/binding/low-can-hat.hpp b/low-can-binding/binding/low-can-hat.hpp
new file mode 100644
index 00000000..cf3d999e
--- /dev/null
+++ b/low-can-binding/binding/low-can-hat.hpp
@@ -0,0 +1,40 @@
+/*
+ * 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 <map>
+#include <string>
+#include <memory>
+#include <systemd/sd-event.h>
+
+extern "C"
+{
+	#define AFB_BINDING_VERSION 2
+	#include <afb/afb-binding.h>
+};
+
+class low_can_subscription_t;
+
+void on_no_clients(std::shared_ptr<low_can_subscription_t> can_subscription, std::map<int, std::shared_ptr<low_can_subscription_t> >& s);
+void on_no_clients(std::shared_ptr<low_can_subscription_t> can_subscription, uint32_t pid, std::map<int, std::shared_ptr<low_can_subscription_t> >& s);
+int read_message(sd_event_source *s, int fd, uint32_t revents, void *userdata);
+
+void subscribe(struct afb_req request);
+void unsubscribe(struct afb_req request);
\ No newline at end of file
diff --git a/low-can-binding/binding/low-can-subscription.cpp b/low-can-binding/binding/low-can-subscription.cpp
new file mode 100644
index 00000000..5488cc53
--- /dev/null
+++ b/low-can-binding/binding/low-can-subscription.cpp
@@ -0,0 +1,306 @@
+/*
+ * 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-hat.hpp"
+
+#include "low-can-subscription.hpp"
+#include "application.hpp"
+#include "canutil/write.h"
+
+low_can_subscription_t::low_can_subscription_t()
+	: index_{-1},
+	event_filter_{event_filter_t()},
+	socket_{}
+{}
+
+low_can_subscription_t::low_can_subscription_t(struct event_filter_t event_filter)
+	: event_filter_{event_filter}
+{}
+
+low_can_subscription_t::low_can_subscription_t( low_can_subscription_t&& s)
+	: index_{s.index_},
+	event_filter_{s.event_filter_},
+	socket_{std::move(s.socket_)}
+{}
+
+low_can_subscription_t& low_can_subscription_t::operator=(const low_can_subscription_t& s)
+{
+	socket_ = std::move(s.socket_);
+	return *this;
+}
+
+low_can_subscription_t::~low_can_subscription_t()
+{
+	socket_.close();
+}
+
+low_can_subscription_t::operator bool() const
+{
+	return ((can_signal_ != nullptr || ! diagnostic_message_.empty()) && afb_event_is_valid(event_));
+}
+
+struct afb_event& low_can_subscription_t::get_event()
+{
+	return event_;
+}
+
+int low_can_subscription_t::get_index() const
+{
+	return index_;
+}
+
+const std::shared_ptr<can_signal_t> low_can_subscription_t::get_can_signal() const
+{
+	return can_signal_;
+}
+
+const std::vector<std::shared_ptr<diagnostic_message_t> > low_can_subscription_t::get_diagnostic_message() const
+{
+	return diagnostic_message_;
+}
+
+/// @brief Retrieve a diagnostic_message subscribed from a pid
+/// 
+/// @param[in] pid - Diagnostic messages PID to search for
+///
+/// @return shared_ptr diagnostic_message_ if found and nullptr if not found
+const std::shared_ptr<diagnostic_message_t> low_can_subscription_t::get_diagnostic_message(uint32_t pid) const
+{
+	for(const auto& diag: diagnostic_message_)
+	{
+		if(diag->get_pid() == pid)
+		{
+			return diag;
+		}
+	}
+	return nullptr;
+}
+
+/// @brief Retrieve a diagnostic message search from its name
+///
+/// @return shared_ptr diagnostic_message_ if found and nullptr if not found
+const std::shared_ptr<diagnostic_message_t> low_can_subscription_t::get_diagnostic_message(const std::string& name) const
+{
+	for(const auto& diag: diagnostic_message_)
+	{
+		if(diag->get_name() == name)
+		{
+			return diag;
+		}
+	}
+	return nullptr;
+}
+
+/// @brief Return the CAN signal name and empty string if not found
+/// or no CAN signal subscribed
+const std::string low_can_subscription_t::get_name() const
+{
+	if (can_signal_ != nullptr)
+		return can_signal_->get_name();
+
+	return "";
+}
+
+/// @brief Return name from a diagnostic message from a PID
+///
+/// @param[in] pid - Diagnostic message PID
+const std::string low_can_subscription_t::get_name(uint32_t pid) const
+{
+	if (!diagnostic_message_.empty())
+		return get_diagnostic_message(pid)->get_name() ;
+
+	return "";
+}
+
+float low_can_subscription_t::get_frequency() const
+{
+	return event_filter_.frequency;
+}
+
+float low_can_subscription_t::get_min() const
+{
+	return event_filter_.min;
+}
+
+float low_can_subscription_t::get_max() const
+{
+	return event_filter_.max;
+}
+
+utils::socketcan_bcm_t& low_can_subscription_t::get_socket()
+{
+	return socket_;
+}
+
+void low_can_subscription_t::set_event(struct afb_event event)
+{
+	event_ = event;
+}
+
+void low_can_subscription_t::set_frequency(float freq)
+{
+	event_filter_.frequency = freq;
+}
+
+void low_can_subscription_t::set_min(float min)
+{
+	event_filter_.min = min;
+}
+
+void low_can_subscription_t::set_max(float max)
+{
+	event_filter_.max = max;
+}
+
+/// @brief Based upon which object is subscribed CAN signal or diagnostic message
+/// this will open the socket with the required CAN bus device name.
+///
+/// @return INVALID_SOCKET on failure else positive integer
+int low_can_subscription_t::open_socket()
+{
+	int ret = 0;
+	if(! socket_)
+	{
+		if( can_signal_ != nullptr)
+			{ret = socket_.open(can_signal_->get_message()->get_bus_device_name());}
+		else if (! diagnostic_message_ .empty())
+			{ret = socket_.open(application_t::instance().get_diagnostic_manager().get_bus_device_name());}
+		index_ = (int)socket_.socket();
+	}
+	return ret;
+}
+
+/// @brief Build a BCM message head but don't set can_frame.
+///
+/// @return a simple_bcm_msg with the msg_head parts set and can_frame
+/// zeroed.
+struct utils::simple_bcm_msg low_can_subscription_t::make_bcm_head(uint32_t can_id, uint32_t flags, const struct timeval& timeout, const struct timeval& frequency_thinning) const
+{
+	struct utils::simple_bcm_msg bcm_msg;
+
+	memset(&bcm_msg, 0, sizeof(bcm_msg));
+
+	bcm_msg.msg_head.opcode  = RX_SETUP;
+	bcm_msg.msg_head.can_id  = can_id;
+	bcm_msg.msg_head.flags = flags;
+	bcm_msg.msg_head.ival1.tv_sec = timeout.tv_sec ;
+	bcm_msg.msg_head.ival1.tv_usec = timeout.tv_usec;
+	bcm_msg.msg_head.ival2.tv_sec = frequency_thinning.tv_sec ;
+	bcm_msg.msg_head.ival2.tv_usec = frequency_thinning.tv_usec;
+
+	return bcm_msg;
+}
+
+/// @brief Take an existing simple_bcm_msg struct and add a can_frame to it.
+/// Only possible for now to add 1 uniq can_frame, it isn't possible to build
+/// a multiplexed message with several can_frame.
+void low_can_subscription_t::add_bcm_frame(const struct can_frame& cfd, struct utils::simple_bcm_msg& bcm_msg) const
+{
+	for(int i=0; i < CAN_MAX_DLEN; i++)
+	{
+		if(cfd.data[i] != 0)
+		{
+			bcm_msg.msg_head.nframes = 1;
+			bcm_msg.frames = cfd;
+			return;
+		}
+	}
+}
+
+/// @brief Create a RX_SETUP receive job used by the BCM socket for a CAN signal
+/// subscription
+///
+/// @return 0 if ok else -1
+int low_can_subscription_t::create_rx_filter(std::shared_ptr<can_signal_t> sig)
+{
+	can_signal_= sig;
+
+	struct can_frame cfd;
+	memset(&cfd, 0, sizeof(cfd));
+
+	float val = (float)(1 << can_signal_->get_bit_size()) - 1;
+	bitfield_encode_float(val,
+							can_signal_->get_bit_position(),
+							can_signal_->get_bit_size(),
+							can_signal_->get_factor(),
+							can_signal_->get_offset(),
+							cfd.data,
+							CAN_MAX_DLEN);
+
+	struct timeval freq, timeout = {0, 0};
+	frequency_clock_t f = std::isnan(event_filter_.frequency) ? can_signal_->get_frequency() : frequency_clock_t(event_filter_.frequency);
+	freq = f.get_timeval_from_period();
+
+	utils::simple_bcm_msg bcm_msg = make_bcm_head(can_signal_->get_message()->get_id(), SETTIMER|RX_NO_AUTOTIMER, timeout, freq);
+	add_bcm_frame(cfd, bcm_msg);
+
+	return create_rx_filter(bcm_msg);
+}
+
+/// @brief Create a RX_SETUP receive job used by the BCM socket for a
+/// diagnostic message subscription.
+///
+/// @return 0 if ok else -1
+int low_can_subscription_t::create_rx_filter(std::shared_ptr<diagnostic_message_t> sig)
+{
+	diagnostic_message_.push_back(sig);
+
+	struct timeval freq = frequency_clock_t(event_filter_.frequency).get_timeval_from_period();
+	//struct timeval timeout = frequency_clock_t(10).get_timeval_from_period();
+	struct timeval timeout = {0,0};
+
+	utils::simple_bcm_msg bcm_msg =  make_bcm_head(OBD2_FUNCTIONAL_BROADCAST_ID, SETTIMER|RX_NO_AUTOTIMER|RX_FILTER_ID, timeout, freq);
+	return create_rx_filter(bcm_msg);
+}
+
+/// @brief Create a RX_SETUP receive job used by the BCM socket directly from
+/// a simple_bcm_msg. You will not use this method directly but rather use the
+/// two previous method with can_signal_t or diagnostic_message_t object.
+///
+/// If the CAN arbitration ID is the OBD2 functional broadcast id the subscribed
+/// to the 8 classics OBD2 functional response ID
+///
+/// @return 0 if ok else -1
+int low_can_subscription_t::create_rx_filter(utils::simple_bcm_msg& bcm_msg) 
+{
+	// Make sure that socket has been opened.
+	if(open_socket() < 0)
+		{return -1;}
+
+	// If it isn't an OBD2 CAN ID then just add a simple RX_SETUP job
+	// else monitor all standard 8 CAN OBD2 ID response.
+	if(bcm_msg.msg_head.can_id != OBD2_FUNCTIONAL_BROADCAST_ID) 
+	{
+		socket_ << bcm_msg;
+			if(! socket_)
+				return -1;
+	}
+	else
+	{
+		for(uint8_t i = 0; i < 8; i++)
+		{
+			bcm_msg.msg_head.can_id  =  OBD2_FUNCTIONAL_RESPONSE_START + i;
+
+			socket_ << bcm_msg;
+			if(! socket_)
+				return -1;
+		}
+	}
+
+	return 0;
+}
\ No newline at end of file
diff --git a/low-can-binding/binding/low-can-subscription.hpp b/low-can-binding/binding/low-can-subscription.hpp
new file mode 100644
index 00000000..0ad7e3a2
--- /dev/null
+++ b/low-can-binding/binding/low-can-subscription.hpp
@@ -0,0 +1,91 @@
+/*
+ * 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 <string>
+#include <cmath>
+#include <utility>
+
+#include "../can/can-signals.hpp"
+#include "../diagnostic/diagnostic-message.hpp"
+#include "../utils/socketcan-bcm.hpp"
+
+/// @brief Filtering values. Theses values has to be tested into
+/// can_bus_t::apply_filter method.
+struct event_filter_t
+{
+	float frequency; ///< frequency - Maximum frequency which will be received and pushed a subscribed event.
+	float min; ///< min - Minimum value that the signal don't have to go below to be pushed.
+	float max; ///< max - Maximum value that the signal don't have to go above to be pushed.
+	event_filter_t() : frequency{NAN}, min{NAN}, max{NAN} {}
+};
+
+/// @brief A subscription object used has a context that handle all needed values to describe a subscription
+/// to the low-can binding. It can holds a CAN signal or diagnostic message. Diagnostic message for OBD2 is a kind
+/// of special because there is only 1 listener to retrieve OBD2 requests. So it's needed that all diagnostic messages
+/// subscriptions is to be in 1 object.
+class low_can_subscription_t
+{
+private:
+	int index_; ///< index_ - index number is the socket (int) casted
+	struct afb_event event_; ///< event_ - application framework event used to push on client
+
+	/// Signal part
+	std::shared_ptr<can_signal_t> can_signal_; ///< can_signal_ - the CAN signal subscribed
+	std::vector<std::shared_ptr<diagnostic_message_t> > diagnostic_message_; ///< diagnostic_message_ - diagnostic messages meant to received OBD2 responses.
+				/// normal diagnostic request and response not tested for now.
+
+	/// Filtering part
+	struct event_filter_t event_filter_; ///< event_filter_ - filtering values applied to a subscription
+
+	utils::socketcan_bcm_t socket_; ///< socket_ - socket_ that receives CAN messages.
+public:
+	low_can_subscription_t();
+	low_can_subscription_t(struct event_filter_t event_filter);
+	low_can_subscription_t(const low_can_subscription_t& s) = delete;
+	low_can_subscription_t(low_can_subscription_t&& s);
+	~low_can_subscription_t();
+
+	low_can_subscription_t& operator=(const low_can_subscription_t& s);
+	explicit operator bool() const;
+
+	int get_index() const;
+	struct afb_event& get_event();
+	const std::shared_ptr<can_signal_t> get_can_signal() const;
+	const std::shared_ptr<diagnostic_message_t> get_diagnostic_message(uint32_t pid) const;
+	const std::vector<std::shared_ptr<diagnostic_message_t> > get_diagnostic_message() const;
+	const std::shared_ptr<diagnostic_message_t> get_diagnostic_message(const std::string& name) const;
+	const std::string get_name() const;
+	const std::string get_name(uint32_t pid) const;
+	float get_frequency() const;
+	float get_min() const;
+	float get_max() const;
+	utils::socketcan_bcm_t& get_socket();
+
+	void set_event(struct afb_event event);
+	void set_frequency(float freq);
+	void set_min(float min);
+	void set_max(float max);
+
+	struct utils::simple_bcm_msg make_bcm_head(uint32_t can_id, uint32_t flags, const struct timeval& timeout, const struct timeval& frequency_thinning) const;
+	void add_bcm_frame(const struct can_frame& cfd, struct utils::simple_bcm_msg& bcm_msg) const;
+	int open_socket();
+	int create_rx_filter(std::shared_ptr<can_signal_t> sig);
+	int create_rx_filter(std::shared_ptr<diagnostic_message_t> sig);
+	int create_rx_filter(utils::simple_bcm_msg& bcm_msg);
+};