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-rw-r--r--low-can-binding/binding/low-can-socket.cpp336
1 files changed, 0 insertions, 336 deletions
diff --git a/low-can-binding/binding/low-can-socket.cpp b/low-can-binding/binding/low-can-socket.cpp
deleted file mode 100644
index cd827b6b..00000000
--- a/low-can-binding/binding/low-can-socket.cpp
+++ /dev/null
@@ -1,336 +0,0 @@
-/*
- * 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-subscription.hpp"
-#include "application.hpp"
-#include "canutil/write.h"
-
-low_can_socket_t::low_can_socket_t()
- : index_{-1},
- event_filter_{},
- socket_{}
-{}
-
-low_can_socket_t::low_can_socket_t(struct event_filter_t event_filter)
- : event_filter_{event_filter}
- {}
-
-low_can_socket_t::low_can_socket_t( low_can_socket_t&& s)
- : index_{s.index_},
- event_filter_{s.event_filter_},
- socket_{std::move(s.socket_)}
-{}
-
-low_can_socket_t& low_can_socket_t::operator=(const low_can_socket_t& s)
-{
- socket_ = std::move(s.socket_);
- return *this;
-}
-
-low_can_socket_t::~low_can_socket_t()
-{
- socket_.close();
-}
-
-low_can_socket_t::operator bool() const
-{
- return ((can_signal_ != nullptr || ! diagnostic_message_.empty()) && ! socket_);
-}
-
-int low_can_socket_t::get_index() const
-{
- return index_;
-}
-
-const std::shared_ptr<can_signal_t> low_can_socket_t::get_can_signal() const
-{
- return can_signal_;
-}
-
-bool low_can_socket_t::is_signal_subscription_corresponding(const std::shared_ptr<can_signal_t> can_signal, const struct event_filter_t& event_filter) const
-{
- return can_signal_ == can_signal && event_filter_ == event_filter;
-}
-
-const std::vector<std::shared_ptr<diagnostic_message_t> > low_can_socket_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_socket_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_socket_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_socket_t::get_name() const
-{
- if (can_signal_ != nullptr)
- return can_signal_->get_name();
- else if (!diagnostic_message_.empty())
- return "diagnostic_messages";
-
- AFB_WARNING("No diagnostics messages nor CAN signals registered in that subscription. Name empty ! It's a bug to be reported.");
- return "";
-}
-
-/// @brief Return name from a diagnostic message from a PID
-///
-/// @param[in] pid - Diagnostic message PID
-const std::string low_can_socket_t::get_name(uint32_t pid) const
-{
- if (!diagnostic_message_.empty())
- return get_diagnostic_message(pid)->get_name() ;
-
- AFB_WARNING("No diagnostics messages nor CAN signals registered in that subscription. Name empty ! It's a bug to be reported.");
- return "";
-}
-
-float low_can_socket_t::get_frequency() const
-{
- return event_filter_.frequency;
-}
-
-float low_can_socket_t::get_min() const
-{
- return event_filter_.min;
-}
-
-float low_can_socket_t::get_max() const
-{
- return event_filter_.max;
-}
-
-utils::socketcan_bcm_t& low_can_socket_t::get_socket()
-{
- return socket_;
-}
-
-void low_can_socket_t::set_frequency(float freq)
-{
- event_filter_.frequency = freq;
-}
-
-void low_can_socket_t::set_min(float min)
-{
- event_filter_.min = min;
-}
-
-void low_can_socket_t::set_max(float max)
-{
- event_filter_.max = max;
-}
-/// @brief Based upon which object is a subscribed CAN signal or diagnostic message
-/// it will open the socket with the required CAN bus device name.
-///
-/// @return INVALID_SOCKET on failure, else positive integer
-int low_can_socket_t::open_socket(const std::string& bus_name)
-{
- 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());}
- else if ( ! bus_name.empty())
- { ret = socket_.open(bus_name);}
- index_ = (int)socket_.socket();
- }
- return ret;
-}
-
-/// @brief Builds a BCM message head but doesn't set can_frame.
-///
-/// @returns a bcm_msg with the msg_head parts set and can_frame
-/// zeroed.
-struct utils::bcm_msg low_can_socket_t::make_bcm_head(uint32_t opcode, uint32_t can_id, uint32_t flags, const struct timeval& timeout, const struct timeval& frequency_thinning) const
-{
- struct utils::bcm_msg bcm_msg;
- ::memset(&bcm_msg, 0, sizeof(bcm_msg));
-
- bcm_msg.msg_head.opcode = opcode;
- 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 bcm_msg struct and add a can_frame.
-/// Currently only 1 uniq can_frame can be added, it's not possible to build
-/// a multiplexed message with several can_frame.
-void low_can_socket_t::add_one_bcm_frame(struct canfd_frame& cfd, struct utils::bcm_msg& bcm_msg) const
-{
- struct can_frame cf;
-
- if (bcm_msg.msg_head.flags & CAN_FD_FRAME)
- bcm_msg.fd_frames[bcm_msg.msg_head.nframes] = cfd;
- else
- {
- cf.can_id = cfd.can_id;
- cf.can_dlc = cfd.len;
- ::memcpy(&cf.data, cfd.data, cfd.len);
- bcm_msg.frames[bcm_msg.msg_head.nframes] = cf;
- }
- bcm_msg.msg_head.nframes++;
-}
-
-/// @brief Create a RX_SETUP receive job to be used by the BCM socket for a CAN signal
-/// subscription
-///
-/// @return 0 if ok else -1
-int low_can_socket_t::create_rx_filter(std::shared_ptr<can_signal_t> sig)
-{
- uint32_t flags;
- float val;
- struct timeval freq, timeout = {0, 0};
- struct canfd_frame cfd;
- can_signal_= sig;
-
- if (sig->get_message()->is_fd())
- {
- flags = SETTIMER|RX_NO_AUTOTIMER|CAN_FD_FRAME;
- cfd.len = CANFD_MAX_DLEN;
- }
- else
- {
- flags = SETTIMER|RX_NO_AUTOTIMER;
- cfd.len = CAN_MAX_DLEN;
- }
- val = (float)(1 << can_signal_->get_bit_size()) - 1;
- if(! bitfield_encode_float(val,
- can_signal_->get_bit_position(),
- can_signal_->get_bit_size(),
- 1,
- can_signal_->get_offset(),
- cfd.data,
- cfd.len))
- return -1;
-
- frequency_clock_t f = event_filter_.frequency == 0 ? can_signal_->get_frequency() : frequency_clock_t(event_filter_.frequency);
- freq = f.get_timeval_from_period();
-
- utils::bcm_msg bcm_msg = make_bcm_head(RX_SETUP, can_signal_->get_message()->get_id(), flags, timeout, freq);
- add_one_bcm_frame(cfd, bcm_msg);
-
- return create_rx_filter(bcm_msg);
-}
-
-/// @brief Create a RX_SETUP receive job to be used by the BCM socket for a
-/// diagnostic message subscription.
-///
-/// @return 0 if ok else -1
-int low_can_socket_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::bcm_msg bcm_msg = make_bcm_head(RX_SETUP, 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 bcm_msg. The method should not be used directly but rather through 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_socket_t::create_rx_filter(utils::bcm_msg& bcm_msg)
-{
- // Make sure that socket is opened.
- if(open_socket() < 0)
- {return -1;}
-
- // If it's not 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;
-}
-
-/// @brief Creates a TX_SEND job that is used by the BCM socket to
-/// send a message
-///
-/// @return 0 if ok else -1
-int low_can_socket_t::tx_send(struct canfd_frame& cfd, const std::string& bus_name)
-{
- utils::bcm_msg bcm_msg = make_bcm_head(TX_SEND, cfd.can_id);
- add_one_bcm_frame(cfd, bcm_msg);
-
- if(open_socket(bus_name) < 0)
- {return -1;}
-
- socket_ << bcm_msg;
- if(! socket_)
- return -1;
-
- return 0;
-}