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authorRomain Forlot <romain.forlot@iot.bzh>2019-06-26 10:34:04 +0200
committerRomain Forlot <romain.forlot@iot.bzh>2019-06-26 17:55:06 +0200
commitd2d2620bbb8f0aad0181e67e9f6affc3d6cb4a51 (patch)
tree13e7c1069252dbadb2b430414f3722132d1d7013 /low-can-binding/can
parent82b45e3de8c92816c8080178224c5bd4be60a091 (diff)
Change can_message_t class usage for new j1939
This commit transforms the class can_message_t as the base class and creates two derived classes: j1939_message_t and can_message_t. Bug-AGL: SPEC-2386 Change-Id: I6d3afd8e4f5abff2cd0ec4e9910bd52a2893de76 Signed-off-by: Arthur Guyader <arthur.guyader@iot.bzh> Signed-off-by: Stephane Desneux <stephane.desneux@iot.bzh> Signed-off-by: Romain Forlot <romain.forlot@iot.bzh>
Diffstat (limited to 'low-can-binding/can')
-rw-r--r--low-can-binding/can/can-bus-device.hpp2
-rw-r--r--low-can-binding/can/can-bus.cpp50
-rw-r--r--low-can-binding/can/can-bus.hpp13
-rw-r--r--low-can-binding/can/can-decoder.cpp4
-rw-r--r--low-can-binding/can/can-decoder.hpp6
-rw-r--r--low-can-binding/can/can-encoder.hpp2
-rw-r--r--low-can-binding/can/can-message-definition.cpp14
-rw-r--r--low-can-binding/can/can-message-definition.hpp5
-rw-r--r--low-can-binding/can/can-signals.cpp2
-rw-r--r--low-can-binding/can/can-signals.hpp2
-rw-r--r--low-can-binding/can/message/can-message.cpp (renamed from low-can-binding/can/can-message.cpp)101
-rw-r--r--low-can-binding/can/message/can-message.hpp49
-rw-r--r--low-can-binding/can/message/j1939-message.cpp163
-rw-r--r--low-can-binding/can/message/j1939-message.hpp73
-rw-r--r--low-can-binding/can/message/message.cpp96
-rw-r--r--low-can-binding/can/message/message.hpp (renamed from low-can-binding/can/can-message.hpp)46
16 files changed, 507 insertions, 121 deletions
diff --git a/low-can-binding/can/can-bus-device.hpp b/low-can-binding/can/can-bus-device.hpp
index c53e5f23..a5c9493c 100644
--- a/low-can-binding/can/can-bus-device.hpp
+++ b/low-can-binding/can/can-bus-device.hpp
@@ -26,7 +26,7 @@
#include <condition_variable>
#include "openxc.pb.h"
-#include "can-message.hpp"
+#include "message/can-message.hpp"
#include "../utils/config-parser.hpp"
#include "../binding/low-can-subscription.hpp"
diff --git a/low-can-binding/can/can-bus.cpp b/low-can-binding/can/can-bus.cpp
index e798618d..739e865c 100644
--- a/low-can-binding/can/can-bus.cpp
+++ b/low-can-binding/can/can-bus.cpp
@@ -81,9 +81,9 @@ bool can_bus_t::apply_filter(const openxc_VehicleMessage& vehicle_message, std::
/// @param[in] can_message - a single CAN message from the CAN socket read, to be decode.
///
/// @return How many signals has been decoded.
-void can_bus_t::process_can_signals(const can_message_t& can_message, std::map<int, std::shared_ptr<low_can_subscription_t> >& s)
+void can_bus_t::process_signals(const message_t& message, std::map<int, std::shared_ptr<low_can_subscription_t> >& s)
{
- int subscription_id = can_message.get_sub_id();
+ int subscription_id = message.get_sub_id();
openxc_DynamicField decoded_message;
openxc_VehicleMessage vehicle_message;
@@ -93,9 +93,9 @@ void can_bus_t::process_can_signals(const can_message_t& can_message, std::map<i
// First we have to found which can_signal_t it is
std::shared_ptr<low_can_subscription_t> sig = s[subscription_id];
- decoded_message = decoder_t::translate_signal(*sig->get_can_signal(), can_message, &send);
+ decoded_message = decoder_t::translate_signal(*sig->get_can_signal(), message, &send);
openxc_SimpleMessage s_message = build_SimpleMessage(sig->get_name(), decoded_message);
- vehicle_message = build_VehicleMessage(s_message, can_message.get_timestamp());
+ vehicle_message = build_VehicleMessage(s_message, message.get_timestamp());
if(send && apply_filter(vehicle_message, sig))
{
@@ -114,13 +114,13 @@ void can_bus_t::process_can_signals(const can_message_t& can_message, std::map<i
/// @param[in] can_message - a single CAN message from the CAN socket read, to be decode.
///
/// @return How many signals has been decoded.
-void can_bus_t::process_diagnostic_signals(diagnostic_manager_t& manager, const can_message_t& can_message, std::map<int, std::shared_ptr<low_can_subscription_t> >& s)
+void can_bus_t::process_diagnostic_signals(diagnostic_manager_t& manager, std::shared_ptr<message_t> message, std::map<int, std::shared_ptr<low_can_subscription_t> >& s)
{
- int subscription_id = can_message.get_sub_id();
+ int subscription_id = message->get_sub_id();
- openxc_VehicleMessage vehicle_message = manager.find_and_decode_adr(can_message);
- if (can_message.get_timestamp())
- {vehicle_message.timestamp = can_message.get_timestamp();}
+ openxc_VehicleMessage vehicle_message = manager.find_and_decode_adr(message);
+ if (message->get_timestamp())
+ {vehicle_message.timestamp = message->get_timestamp();}
if( (vehicle_message.has_simple_message && vehicle_message.simple_message.has_name) &&
s.find(subscription_id) != s.end() && afb_event_is_valid(s[subscription_id]->get_event()))
{
@@ -155,16 +155,18 @@ void can_bus_t::can_decode_message()
new_can_message_cv_.wait(can_message_lock);
while(!can_message_q_.empty())
{
- const can_message_t can_message = next_can_message();
+ std::shared_ptr<message_t> message = next_can_message();
can_message_lock.unlock();
{
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();
- if(application_t::instance().get_diagnostic_manager().is_diagnostic_response(can_message))
- {process_diagnostic_signals(application_t::instance().get_diagnostic_manager(), can_message, s);}
+ if(application_t::instance().get_diagnostic_manager().is_diagnostic_response(message))
+ {
+ process_diagnostic_signals(application_t::instance().get_diagnostic_manager(), message, s);
+ }
else
- {process_can_signals(can_message, s);}
+ {process_signals(*message, s);}
}
can_message_lock.lock();
}
@@ -251,28 +253,28 @@ std::mutex& can_bus_t::get_can_message_mutex()
/// @brief Return first can_message_t on the queue
///
/// @return a can_message_t
-const can_message_t can_bus_t::next_can_message()
+std::shared_ptr<message_t> can_bus_t::next_can_message()
{
- can_message_t can_msg;
+ std::shared_ptr<message_t> msg;
if(!can_message_q_.empty())
{
- can_msg = can_message_q_.front();
+ msg = can_message_q_.front();
can_message_q_.pop();
- AFB_DEBUG("Here is the next can message : id %X, length %X, data %02X%02X%02X%02X%02X%02X%02X%02X", can_msg.get_id(), can_msg.get_length(),
- can_msg.get_data()[0], can_msg.get_data()[1], can_msg.get_data()[2], can_msg.get_data()[3], can_msg.get_data()[4], can_msg.get_data()[5], can_msg.get_data()[6], can_msg.get_data()[7]);
- return can_msg;
+ std::string debug = msg->get_debug_message();
+ AFB_DEBUG(debug.c_str());
+ return msg;
}
- return can_msg;
+ return msg;
}
-/// @brief Push a can_message_t into the queue
+/// @brief Push a message_t into the queue
///
-/// @param[in] can_msg - the const reference can_message_t object to push into the queue
-void can_bus_t::push_new_can_message(const can_message_t& can_msg)
+/// @param[in] msg - the const reference message_t object to push into the queue
+void can_bus_t::push_new_can_message(std::shared_ptr<message_t> msg)
{
- can_message_q_.push(can_msg);
+ can_message_q_.push(msg);
}
/// @brief Return first openxc_VehicleMessage on the queue
diff --git a/low-can-binding/can/can-bus.hpp b/low-can-binding/can/can-bus.hpp
index f1eb690f..2a798ca6 100644
--- a/low-can-binding/can/can-bus.hpp
+++ b/low-can-binding/can/can-bus.hpp
@@ -24,9 +24,8 @@
#include <thread>
#include <linux/can.h>
#include <condition_variable>
-
#include "openxc.pb.h"
-#include "can-message.hpp"
+#include "message/can-message.hpp"
#include "../utils/config-parser.hpp"
#include "../binding/low-can-subscription.hpp"
@@ -47,8 +46,8 @@ private:
utils::config_parser_t conf_file_; ///< configuration file handle used to initialize can_bus_dev_t objects.
bool apply_filter(const openxc_VehicleMessage& vehicle_message, std::shared_ptr<low_can_subscription_t> can_subscription);
- void process_can_signals(const can_message_t& can_message, std::map<int, std::shared_ptr<low_can_subscription_t> >& s);
- void process_diagnostic_signals(diagnostic_manager_t& manager, const can_message_t& can_message, std::map<int, std::shared_ptr<low_can_subscription_t> >& s);
+ void process_signals(const message_t& message, std::map<int, std::shared_ptr<low_can_subscription_t> >& s);
+ void process_diagnostic_signals(diagnostic_manager_t& manager, std::shared_ptr<message_t> message, std::map<int, std::shared_ptr<low_can_subscription_t> >& s);
void can_decode_message();
std::thread th_decoding_; ///< thread that will handle decoding a can frame
@@ -60,7 +59,7 @@ private:
std::condition_variable new_can_message_cv_; ///< condition_variable use to wait until there is a new CAN message to read
std::mutex can_message_mutex_; ///< mutex protecting the can_message_q_ queue.
- std::queue <can_message_t> can_message_q_; ///< queue that will store can_message_t to be decoded
+ std::queue <std::shared_ptr<message_t>> can_message_q_; ///< queue that will store can_message_t to be decoded
std::condition_variable new_decoded_can_message_; ///< condition_variable use to wait until there is a new vehicle message
/// to read from the queue vehicle_message_q_
@@ -80,8 +79,8 @@ public:
void start_threads();
void stop_threads();
- const can_message_t next_can_message();
- void push_new_can_message(const can_message_t& can_msg);
+ std::shared_ptr<message_t> next_can_message();
+ void push_new_can_message(std::shared_ptr<message_t> can_msg);
std::mutex& get_can_message_mutex();
std::condition_variable& get_new_can_message_cv();
diff --git a/low-can-binding/can/can-decoder.cpp b/low-can-binding/can/can-decoder.cpp
index 763bfcb0..a2bf411b 100644
--- a/low-can-binding/can/can-decoder.cpp
+++ b/low-can-binding/can/can-decoder.cpp
@@ -31,7 +31,7 @@
/// @return Returns the raw value of the signal parsed as a bitfield from the given byte
/// array.
///
-float decoder_t::parse_signal_bitfield(can_signal_t& signal, const can_message_t& message)
+float decoder_t::parse_signal_bitfield(can_signal_t& signal, const message_t& message)
{
return bitfield_parse_float(message.get_data(), CAN_MESSAGE_SIZE,
signal.get_bit_position(), signal.get_bit_size(), signal.get_factor(),
@@ -144,7 +144,7 @@ openxc_DynamicField decoder_t::decode_state(can_signal_t& signal, float value, b
/// The decoder returns an openxc_DynamicField, which may contain a number,
/// string or boolean.
///
-openxc_DynamicField decoder_t::translate_signal(can_signal_t& signal, const can_message_t& message, bool* send)
+openxc_DynamicField decoder_t::translate_signal(can_signal_t& signal, const message_t& message, bool* send)
{
float value = decoder_t::parse_signal_bitfield(signal, message);
AFB_DEBUG("Decoded message from parse_signal_bitfield: %f", value);
diff --git a/low-can-binding/can/can-decoder.hpp b/low-can-binding/can/can-decoder.hpp
index 7e7349db..ffc881f9 100644
--- a/low-can-binding/can/can-decoder.hpp
+++ b/low-can-binding/can/can-decoder.hpp
@@ -18,20 +18,20 @@
#pragma once
#include "can-signals.hpp"
-#include "can-message.hpp"
+#include "message/can-message.hpp"
#include "openxc.pb.h"
class decoder_t
{
public:
- static float parse_signal_bitfield(can_signal_t& signal, const can_message_t& message);
+ static float parse_signal_bitfield(can_signal_t& signal, const message_t& message);
static openxc_DynamicField decode_state(can_signal_t& signal, float value, bool* send);
static openxc_DynamicField decode_boolean(can_signal_t& signal, float value, bool* send);
static openxc_DynamicField decode_ignore(can_signal_t& signal, float value, bool* send);
static openxc_DynamicField decode_noop(can_signal_t& signal, float value, bool* send);
- static openxc_DynamicField translate_signal(can_signal_t& signal, const can_message_t& messag, bool* send);
+ static openxc_DynamicField translate_signal(can_signal_t& signal, const message_t& messag, bool* send);
static openxc_DynamicField decode_signal(can_signal_t& signal, const can_message_t& message, bool* send);
diff --git a/low-can-binding/can/can-encoder.hpp b/low-can-binding/can/can-encoder.hpp
index f8398836..294b1674 100644
--- a/low-can-binding/can/can-encoder.hpp
+++ b/low-can-binding/can/can-encoder.hpp
@@ -18,7 +18,7 @@
#pragma once
#include "can-signals.hpp"
-#include "can-message.hpp"
+#include "message/can-message.hpp"
#include "openxc.pb.h"
class encoder_t
diff --git a/low-can-binding/can/can-message-definition.cpp b/low-can-binding/can/can-message-definition.cpp
index 483f4a36..92040c31 100644
--- a/low-can-binding/can/can-message-definition.cpp
+++ b/low-can-binding/can/can-message-definition.cpp
@@ -54,6 +54,18 @@ bool can_message_definition_t::is_fd() const
return is_fd_;
}
+bool can_message_definition_t::is_j1939() const
+{
+ if(format_ == can_message_format_t::J1939)
+ {
+ return true;
+ }
+ else
+ {
+ return false;
+ }
+}
+
std::vector<std::shared_ptr<can_signal_t> >& can_message_definition_t::get_can_signals()
{
return can_signals_;
@@ -64,7 +76,7 @@ void can_message_definition_t::set_parent(can_message_set_t* parent)
parent_= parent;
}
-void can_message_definition_t::set_last_value(const can_message_t& cm)
+void can_message_definition_t::set_last_value(const message_t& cm)
{
last_value_= cm.get_data_vector();
}
diff --git a/low-can-binding/can/can-message-definition.hpp b/low-can-binding/can/can-message-definition.hpp
index b9025cbb..689c654c 100644
--- a/low-can-binding/can/can-message-definition.hpp
+++ b/low-can-binding/can/can-message-definition.hpp
@@ -29,7 +29,7 @@
#include <memory>
#include "can-signals.hpp"
-#include "can-message.hpp"
+#include "message/can-message.hpp"
#include "can-message-set.hpp"
#include "../utils/timer.hpp"
@@ -72,8 +72,9 @@ public:
const std::string get_bus_device_name() const;
uint32_t get_id() const;
bool is_fd() const;
+ bool is_j1939() const;
std::vector<std::shared_ptr<can_signal_t> >& get_can_signals();
void set_parent(can_message_set_t* parent);
- void set_last_value(const can_message_t& cm);
+ void set_last_value(const message_t& cm);
};
diff --git a/low-can-binding/can/can-signals.cpp b/low-can-binding/can/can-signals.cpp
index 14881e89..76a9665f 100644
--- a/low-can-binding/can/can-signals.cpp
+++ b/low-can-binding/can/can-signals.cpp
@@ -22,7 +22,7 @@
#include "../binding/application.hpp"
#include "../utils/signals.hpp"
#include "can-decoder.hpp"
-#include "can-message.hpp"
+#include "message/can-message.hpp"
#include "can-bus.hpp"
#include "../diagnostic/diagnostic-message.hpp"
#include "canutil/write.h"
diff --git a/low-can-binding/can/can-signals.hpp b/low-can-binding/can/can-signals.hpp
index 2fd7cecf..9ac55081 100644
--- a/low-can-binding/can/can-signals.hpp
+++ b/low-can-binding/can/can-signals.hpp
@@ -27,7 +27,7 @@
#include "can-message-definition.hpp"
#include "../utils/timer.hpp"
#include "../utils/socketcan-bcm.hpp"
-#include "can-message.hpp"
+#include "message/can-message.hpp"
#include "../diagnostic/diagnostic-message.hpp"
#define MESSAGE_SET_ID 0
diff --git a/low-can-binding/can/can-message.cpp b/low-can-binding/can/message/can-message.cpp
index 074f5990..91f66252 100644
--- a/low-can-binding/can/can-message.cpp
+++ b/low-can-binding/can/message/can-message.cpp
@@ -15,11 +15,11 @@
* limitations under the License.
*/
-#include "can-message.hpp"
+#include "./can-message.hpp"
#include <cstring>
-#include "../binding/low-can-hat.hpp"
+#include "../../binding/low-can-hat.hpp"
///
/// @brief Class constructor
@@ -27,14 +27,11 @@
/// can_message_t class constructor.
///
can_message_t::can_message_t()
- : maxdlen_{0},
+ : message_t(),
+ maxdlen_{0},
id_{0},
- length_{0},
- format_{can_message_format_t::INVALID},
rtr_flag_{false},
- flags_{0},
- timestamp_{0},
- sub_id_{-1}
+ flags_{0}
{}
can_message_t::can_message_t(uint8_t maxdlen,
@@ -45,15 +42,11 @@ can_message_t::can_message_t(uint8_t maxdlen,
uint8_t flags,
std::vector<uint8_t>& data,
uint64_t timestamp)
- : maxdlen_{maxdlen},
+ : message_t(length, format, data, timestamp),
+ maxdlen_{maxdlen},
id_{id},
- length_{length},
- format_{format},
rtr_flag_{rtr_flag},
- flags_{flags},
- data_{data},
- timestamp_{timestamp},
- sub_id_{-1}
+ flags_{flags}
{}
///
@@ -66,51 +59,6 @@ uint32_t can_message_t::get_id() const
return id_;
}
-int can_message_t::get_sub_id() const
-{
- return sub_id_;
-}
-
-///
-/// @brief Retrieve data_ member value.
-///
-/// @return pointer to the first element
-/// of class member data_
-///
-const uint8_t* can_message_t::get_data() const
-{
- return data_.data();
-}
-
-///
-/// @brief Retrieve data_ member whole vector
-///
-/// @return the vector as is
-///
-const std::vector<uint8_t> can_message_t::get_data_vector() const
-{
- return data_;
-}
-
-///
-/// @brief Retrieve length_ member value.
-///
-/// @return length_ class member
-///
-uint8_t can_message_t::get_length() const
-{
- return length_;
-}
-
-void can_message_t::set_sub_id(int sub_id)
-{
- sub_id_ = sub_id;
-}
-
-uint64_t can_message_t::get_timestamp() const
-{
- return timestamp_;
-}
/// @brief Control whether the object is correctly initialized
/// to be sent over the CAN bus
@@ -136,7 +84,7 @@ bool can_message_t::is_correct_to_send()
/// @param[in] nbytes - bytes read from socket read operation.
///
/// @return A can_message_t object fully initialized with canfd_frame values.
-can_message_t can_message_t::convert_from_frame(const struct canfd_frame& frame, size_t nbytes, uint64_t timestamp)
+std::shared_ptr<can_message_t> can_message_t::convert_from_frame(const struct canfd_frame& frame, size_t nbytes, uint64_t timestamp)
{
uint8_t maxdlen = 0, length = 0, flags = 0;
uint32_t id;
@@ -213,5 +161,34 @@ can_message_t can_message_t::convert_from_frame(const struct canfd_frame& frame,
id, (uint8_t)format, length, data[0], data[1], data[2], data[3], data[4], data[5], data[6], data[7]);
}
- return can_message_t(maxdlen, id, length, format, rtr_flag, flags, data, timestamp);
+ return std::make_shared<can_message_t>(can_message_t(maxdlen, id, length, format, rtr_flag, flags, data, timestamp));
+}
+
+
+bool can_message_t::is_set()
+{
+ return (id_ != 0 && length_ != 0);
+}
+
+std::string can_message_t::get_debug_message()
+{
+ std::string ret = "";
+ ret = ret + "Here is the next can message : id " + std::to_string(id_) + " length " + std::to_string(length_) + ", data ";
+ for (size_t i = 0; i < data_.size(); i++)
+ {
+ ret = ret + std::to_string(data_[i]);
+ }
+
+ return ret;
+}
+
+struct bcm_msg can_message_t::get_bcm_msg()
+{
+ return bcm_msg_;
}
+
+void can_message_t::set_bcm_msg(struct bcm_msg bcm_msg)
+{
+ bcm_msg_ = bcm_msg;
+}
+
diff --git a/low-can-binding/can/message/can-message.hpp b/low-can-binding/can/message/can-message.hpp
new file mode 100644
index 00000000..5aa302cc
--- /dev/null
+++ b/low-can-binding/can/message/can-message.hpp
@@ -0,0 +1,49 @@
+/*
+ * 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 "./message.hpp"
+
+
+
+/// @class can_message_t
+///
+/// @brief A compact representation of a single CAN message, meant to be used in in/out
+/// buffers. It is a wrapper of a can_frame struct with some sugar around it for binding purposes.
+class can_message_t : public message_t {
+ private:
+ uint8_t maxdlen_; ///< maxdlen_ - Max data length deduce from number of bytes read from the socket.*/
+ uint32_t id_; ///< id_ - The ID of the message. */
+ bool rtr_flag_; ///< rtr_flag_ - Telling if the frame has RTR flag positionned. Then frame hasn't data field*/
+ uint8_t flags_; ///< flags_ - flags of a CAN FD frame. Needed if we catch FD frames.*/
+ struct bcm_msg bcm_msg_;
+
+ public:
+ can_message_t();
+ can_message_t(uint8_t maxdlen, uint32_t id, uint8_t length, can_message_format_t format, bool rtr_flag_, uint8_t flags, std::vector<uint8_t>& data, uint64_t timestamp);
+
+ uint32_t get_id() const;
+
+ static std::shared_ptr<can_message_t> convert_from_frame(const canfd_frame& frame, size_t nbytes, uint64_t timestamp);
+ bool is_correct_to_send();
+ bool is_set();
+ struct bcm_msg get_bcm_msg();
+ void set_bcm_msg(struct bcm_msg bcm_msg);
+
+ std::string get_debug_message();
+
+};
diff --git a/low-can-binding/can/message/j1939-message.cpp b/low-can-binding/can/message/j1939-message.cpp
new file mode 100644
index 00000000..8269cbfa
--- /dev/null
+++ b/low-can-binding/can/message/j1939-message.cpp
@@ -0,0 +1,163 @@
+/*
+ * Copyright (C) 2018, 2019 "IoT.bzh"
+ * Author "Arthur Guyader" <arthur.guyader@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 "./j1939-message.hpp"
+#include <cstring>
+#include "../../binding/low-can-hat.hpp"
+
+
+///
+/// @brief Class constructor
+///
+/// j1939_message_t class constructor.
+///
+j1939_message_t::j1939_message_t():
+ message_t(),
+ name_{0},
+ pgn_{0},
+ addr_{0}
+{}
+
+j1939_message_t::j1939_message_t(uint8_t length,
+ can_message_format_t format,
+ std::vector<uint8_t>& data,
+ uint64_t timestamp,
+ name_t name,
+ pgn_t pgn,
+ uint8_t addr):
+ message_t(length, format, data, timestamp),
+ name_{name},
+ pgn_{pgn},
+ addr_{addr}
+{}
+
+///
+/// @brief Retrieve name_ member value.
+///
+/// @return name_ class member
+///
+uint64_t j1939_message_t::get_name() const {
+ return name_;
+}
+
+///
+/// @brief Retrieve pgn_ member value.
+///
+/// @return pgn_ class member
+///
+uint32_t j1939_message_t::get_pgn() const{
+ return pgn_;
+}
+
+///
+/// @brief Retrieve addr_ member value.
+///
+/// @return addr_ class member
+///
+uint8_t j1939_message_t::get_addr() const{
+ return addr_;
+}
+
+
+/// @brief Take a sockaddr_can struct and array of data to initialize class members
+///
+/// This is the preferred way to initialize class members.
+///
+/// @param[in] addr - sockaddr_can to get pgn, name and addr
+/// @param[in] data - array of data get from the j1939 socket
+/// @param[in] nbytes - size of the array of data
+/// @param[in] timestamp - timestamp of the message
+///
+/// @return A j1939_message_t object fully initialized with sockaddr_can and data values.
+std::shared_ptr<j1939_message_t> j1939_message_t::convert_from_addr(struct sockaddr_can& addr, uint8_t (&data)[128],size_t nbytes, uint64_t timestamp)
+{
+ uint8_t length = 0;
+ can_message_format_t format;
+ std::vector<uint8_t> dataVector;
+
+ if(nbytes > J1939_MAX_DLEN)
+ {
+ AFB_DEBUG("Unsupported j1939 frame");
+ format = can_message_format_t::INVALID;
+ }
+ else
+ {
+ AFB_DEBUG("Got a j1939 frame");
+ format = can_message_format_t::J1939;
+ }
+
+ length = (uint8_t) nbytes;
+ dataVector.reserve(length);
+ int i;
+ dataVector.clear();
+ for(i=0;i<length;i++)
+ {
+ dataVector.push_back(data[i]);
+ };
+
+ AFB_DEBUG("Found pgn: %X, format: %X, length: %X, data %02X%02X%02X%02X%02X%02X%02X%02X",
+ addr.can_addr.j1939.pgn, (uint8_t)format, length, data[0], data[1], data[2], data[3], data[4], data[5], data[6], data[7]);
+
+ return std::make_shared<j1939_message_t>(j1939_message_t(length, format, dataVector, timestamp,addr.can_addr.j1939.name,addr.can_addr.j1939.pgn,addr.can_addr.j1939.addr));
+}
+
+/// @brief Test if members pgn_ and length are set.
+///
+/// @return boolean - true = set - false = not set
+bool j1939_message_t::is_set()
+{
+ return (pgn_ != 0 && length_ != 0);
+}
+
+/// @brief Generate a string with informations about the message
+///
+/// @return Debug message with informations about members
+std::string j1939_message_t::get_debug_message()
+{
+ std::string ret = "";
+ ret = ret + "Here is the next j1939 message : pgn " + std::to_string(pgn_) + " length " + std::to_string(length_) + ", data ";
+ for (size_t i = 0; i < data_.size(); i++)
+ {
+ ret = ret + std::to_string(data_[i]);
+ }
+ return ret;
+}
+
+///
+/// @brief Retrieve pgn_ member value.
+///
+/// @return pgn_ class member
+///
+uint32_t j1939_message_t::get_id() const
+{
+ AFB_WARNING("Prefer method get_pgn() for j1939 messages");
+ return get_pgn();
+}
+
+
+struct bcm_msg j1939_message_t::get_bcm_msg()
+{
+ AFB_WARNING("Not implemented");
+ struct bcm_msg bcm_msg;
+ ::memset(&bcm_msg, 0, sizeof(struct bcm_msg));
+ return bcm_msg;
+}
+
+void j1939_message_t::set_bcm_msg(struct bcm_msg bcm_msg)
+{
+ AFB_WARNING("Not implemented");
+}
diff --git a/low-can-binding/can/message/j1939-message.hpp b/low-can-binding/can/message/j1939-message.hpp
new file mode 100644
index 00000000..74b625e0
--- /dev/null
+++ b/low-can-binding/can/message/j1939-message.hpp
@@ -0,0 +1,73 @@
+/*
+ * Copyright (C) 2018, 2019 "IoT.bzh"
+ * Author "Arthur Guyader" <arthur.guyader@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 <linux/can.h>
+#include <linux/can/j1939.h>
+#include "./message.hpp"
+
+#define J1939_MAX_MULTIPACKETS 255
+#define J1939_MAX_DLEN J1939_MAX_MULTIPACKETS * CAN_MAX_DLEN
+
+class j1939_message_t : public message_t
+{
+ private:
+ /* J1939 NAME
+ *
+ * bit 0-20 : Identity Number
+ * bit 21-31 : Manufacturer Code
+ * bit 32-34 : ECU Instance
+ * bit 35-39 : Function Instance
+ * bit 40-47 : Function
+ * bit 48 : Reserved
+ * bit 49-55 : Vehicle System
+ * bit 56-59 : Vehicle System Instance
+ * bit 60-62 : Industry Group
+ * bit 63 : Arbitrary Address Capable
+ */
+ name_t name_;
+
+ /* J1939 Parameter Group Number
+ *
+ * bit 0-7 : PDU Specific (PS)
+ * bit 8-15 : PDU Format (PF)
+ * bit 16 : Data Page (DP)
+ * bit 17 : Reserved (R)
+ * bit 19-31 : set to zero
+ */
+ pgn_t pgn_;
+
+
+ /* J1939 Address
+ */
+ uint8_t addr_;
+
+ public:
+ j1939_message_t();
+ j1939_message_t(uint8_t length, can_message_format_t format, std::vector<uint8_t>& data, uint64_t timestamp, name_t name, pgn_t pgn, uint8_t addr);
+ uint64_t get_name() const;
+ uint32_t get_pgn() const;
+ uint8_t get_addr() const;
+ static std::shared_ptr<j1939_message_t> convert_from_addr(struct sockaddr_can& addr, uint8_t (&data)[128], size_t nbytes, uint64_t timestamp);
+ bool is_set();
+ std::string get_debug_message();
+ uint32_t get_id() const;
+ struct bcm_msg get_bcm_msg();
+ void set_bcm_msg(struct bcm_msg bcm_msg);
+};
+
+
diff --git a/low-can-binding/can/message/message.cpp b/low-can-binding/can/message/message.cpp
new file mode 100644
index 00000000..fe37e7ad
--- /dev/null
+++ b/low-can-binding/can/message/message.cpp
@@ -0,0 +1,96 @@
+/*
+ * 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 "./message.hpp"
+
+#include <cstring>
+
+#include "../../binding/low-can-hat.hpp"
+
+///
+/// @brief Class constructor
+///
+/// message_t class constructor.
+///
+message_t::message_t()
+ : length_{0},
+ format_{can_message_format_t::INVALID},
+ timestamp_{0},
+ sub_id_{-1}
+{}
+
+message_t::message_t(uint8_t length,
+ can_message_format_t format,
+ std::vector<uint8_t>& data,
+ uint64_t timestamp)
+ : length_{length},
+ format_{format},
+ data_{data},
+ timestamp_{timestamp},
+ sub_id_{-1}
+{}
+
+int message_t::get_sub_id() const
+{
+ return sub_id_;
+}
+
+///
+/// @brief Retrieve data_ member value.
+///
+/// @return pointer to the first element
+/// of class member data_
+///
+const uint8_t* message_t::get_data() const
+{
+ return data_.data();
+}
+
+///
+/// @brief Retrieve data_ member whole vector
+///
+/// @return the vector as is
+///
+const std::vector<uint8_t> message_t::get_data_vector() const
+{
+ return data_;
+}
+
+///
+/// @brief Retrieve length_ member value.
+///
+/// @return length_ class member
+///
+uint8_t message_t::get_length() const
+{
+ return length_;
+}
+
+void message_t::set_sub_id(int sub_id)
+{
+ sub_id_ = sub_id;
+}
+
+uint64_t message_t::get_timestamp() const
+{
+ return timestamp_;
+}
+
+can_message_format_t message_t::get_msg_format()
+{
+ return format_;
+}
diff --git a/low-can-binding/can/can-message.hpp b/low-can-binding/can/message/message.hpp
index 032ef4d3..6e0daada 100644
--- a/low-can-binding/can/can-message.hpp
+++ b/low-can-binding/can/message/message.hpp
@@ -20,12 +20,25 @@
#include <vector>
#include <string>
#include <cstdint>
+#include <iostream>
+#include <memory>
#include <linux/can.h>
-
-#include "../utils/timer.hpp"
+#include <linux/can/bcm.h>
+#include "../../utils/timer.hpp"
#define CAN_MESSAGE_SIZE 8
+#define MAX_BCM_CAN_FRAMES 257
+
+struct bcm_msg
+{
+ struct bcm_msg_head msg_head;
+ union {
+ struct canfd_frame fd_frames[MAX_BCM_CAN_FRAMES];
+ struct can_frame frames[MAX_BCM_CAN_FRAMES];
+ };
+};
+
/**
* @enum can_message_format_t
* @brief The ID format for a CAN message.
@@ -33,30 +46,28 @@
enum class can_message_format_t {
STANDARD, ///< STANDARD - standard 11-bit CAN arbitration ID. */
EXTENDED, ///< EXTENDED - an extended frame, with a 29-bit arbitration ID. */
- INVALID, ///< INVALID - INVALID code used at initialization to signify that it isn't usable'*/
+ J1939, ///< J1939 - Format for j1939 messages
+ INVALID, ///< INVALID - INVALID code used at initialization to signify that it isn't usable'*/
};
-/// @class can_message_t
+
+/// @class message_t
///
/// @brief A compact representation of a single CAN message, meant to be used in in/out
/// buffers. It is a wrapper of a can_frame struct with some sugar around it for binding purposes.
-class can_message_t {
-private:
- uint8_t maxdlen_; ///< maxdlen_ - Max data length deduce from number of bytes read from the socket.*/
- uint32_t id_; ///< id_ - The ID of the message. */
+class message_t {
+protected:
uint8_t length_; ///< length_ - the length of the data array (max 8). */
can_message_format_t format_; ///< format_ - the format of the message's ID.*/
- bool rtr_flag_; ///< rtr_flag_ - Telling if the frame has RTR flag positionned. Then frame hasn't data field*/
- uint8_t flags_; ///< flags_ - flags of a CAN FD frame. Needed if we catch FD frames.*/
std::vector<uint8_t> data_; ///< data_ - The message's data field with a size of 8 which is the standard about CAN bus messages.*/
uint64_t timestamp_; ///< timestamp_ - timestamp of the received message*/
int sub_id_; ///< sub_id_ - Subscription index. */
+
public:
- can_message_t();
- can_message_t(uint8_t maxdlen, uint32_t id, uint8_t length, can_message_format_t format, bool rtr_flag_, uint8_t flags, std::vector<uint8_t>& data, uint64_t timestamp);
+ message_t();
+ message_t(uint8_t length, can_message_format_t format, std::vector<uint8_t>& data, uint64_t timestamp);
- uint32_t get_id() const;
int get_sub_id() const;
const uint8_t* get_data() const;
const std::vector<uint8_t> get_data_vector() const;
@@ -65,8 +76,11 @@ public:
void set_sub_id(int sub_id);
void set_timestamp(uint64_t timestamp);
+ can_message_format_t get_msg_format();
+ virtual bool is_set() = 0;
+ virtual std::string get_debug_message() = 0;
+ virtual uint32_t get_id() const = 0;
+ virtual struct bcm_msg get_bcm_msg() = 0;
+ virtual void set_bcm_msg(struct bcm_msg bcm_msg) = 0;
- bool is_correct_to_send();
-
- static can_message_t convert_from_frame(const canfd_frame& frame, size_t nbytes, uint64_t timestamp);
};