#include "can-bus.hpp"
#include <map>
+#include <cerrno>
#include <vector>
#include <string>
#include <fcntl.h>
#include <json-c/json.h>
#include <linux/can/raw.h>
+#include "can-decoder.hpp"
+#include "openxc-utils.hpp"
+
extern "C"
{
#include <afb/afb-binding.h>
*
*********************************************************************************/
-can_bus_t::can_bus_t(int& conf_file)
+can_bus_t::can_bus_t(int conf_file)
: conf_file_{conf_file}
{
}
-void can_bus_t::start_threads()
+void can_bus_t::can_decode_message()
{
- th_decoding_ = std::thread(can_decode_message, std::ref(*this));
- is_decoding_ = true;
- th_pushing_ = std::thread(can_event_push, std::ref(*this));
- is_pushing_ = true;
+ can_message_t can_message;
+ std::vector <CanSignal> signals;
+ std::vector <CanSignal>::iterator signals_i;
+ openxc_VehicleMessage vehicle_message;
+ openxc_DynamicField search_key, decoded_message;
+
+ decoder_t decoder;
+
+ DEBUG(binder_interface, "Beginning of decoding thread.");
+ while(is_decoding_)
+ {
+ {
+ std::unique_lock<std::mutex> can_message_lock(can_message_mutex_);
+ new_can_message_.wait(can_message_lock);
+ can_message = next_can_message();
+ }
+
+ /* First we have to found which CanSignal it is */
+ search_key = build_DynamicField((double)can_message.get_id());
+ signals = find_can_signals(search_key);
+
+ /* Decoding the message ! Don't kill the messenger ! */
+ for(auto& sig : signals)
+ {
+ {
+ std::lock_guard<std::mutex> subscribed_signals_lock(get_subscribed_signals_mutex());
+ std::map<std::string, struct afb_event> subscribed_signals = get_subscribed_signals();
+ const auto& it_event = subscribed_signals.find(sig.genericName);
+
+ if(it_event != subscribed_signals.end() && afb_event_is_valid(it_event->second))
+ {
+ decoded_message = decoder.translateSignal(sig, can_message, getSignals());
+
+ openxc_SimpleMessage s_message = build_SimpleMessage(sig.genericName, decoded_message);
+ vehicle_message = build_VehicleMessage_with_SimpleMessage(openxc_DynamicField_Type::openxc_DynamicField_Type_NUM, s_message);
+
+ std::lock_guard<std::mutex> decoded_can_message_lock(decoded_can_message_mutex_);
+ push_new_vehicle_message(vehicle_message);
+ }
+ new_decoded_can_message_.notify_one();
+ }
+ }
+ }
}
-void can_bus_t::stop_threads()
+void can_bus_t::can_event_push()
{
- is_decoding_ = false;
- is_pushing_ = false;
+ openxc_VehicleMessage v_message;
+ openxc_SimpleMessage s_message;
+ json_object* jo;
+
+ DEBUG(binder_interface, "Beginning of the pushing thread");
+ while(is_pushing_)
+ {
+ {
+ std::unique_lock<std::mutex> decoded_can_message_lock(decoded_can_message_mutex_);
+ new_decoded_can_message_.wait(decoded_can_message_lock);
+ v_message = next_vehicle_message();
+ }
+
+ s_message = get_simple_message(v_message);
+
+ {
+ std::lock_guard<std::mutex> subscribed_signals_lock(get_subscribed_signals_mutex());
+ std::map<std::string, struct afb_event> subscribed_signals = get_subscribed_signals();
+ const auto& it_event = subscribed_signals.find(s_message.name);
+ if(it_event != subscribed_signals.end() && afb_event_is_valid(it_event->second))
+ {
+ jo = json_object_new_object();
+ jsonify_simple(s_message, jo);
+ afb_event_push(it_event->second, jo);
+ }
+ }
+ }
}
-bool can_bus_t::is_decoding()
+void can_bus_t::start_threads()
{
- return is_decoding_;
+ is_decoding_ = true;
+ th_decoding_ = std::thread(&can_bus_t::can_decode_message, this);
+ if(!th_decoding_.joinable())
+ is_decoding_ = false;
+
+ is_pushing_ = true;
+ th_pushing_ = std::thread(&can_bus_t::can_event_push, this);
+ if(!th_pushing_.joinable())
+ is_pushing_ = false;
}
-bool can_bus_t::is_pushing()
+void can_bus_t::stop_threads()
{
- return is_pushing_;
+ is_decoding_ = false;
+ is_pushing_ = false;
}
int can_bus_t::init_can_dev()
for(const auto& device : devices_name)
{
- can_bus_dev_t can_bus_device_handler(device);
- if (can_bus_device_handler.open())
+ can_devices_m_[device] = std::make_shared<can_bus_dev_t>(device);
+ if (can_devices_m_[device]->open() == 0)
{
i++;
- can_bus_device_handler.start_reading(std::ref(*this));
+ DEBUG(binder_interface, "Start reading thread");
+ can_devices_m_[device]->start_reading(*this);
}
else
- ERROR(binder_interface, "Can't open device %s", device);
+ ERROR(binder_interface, "Can't open device %s", device.c_str());
}
NOTICE(binder_interface, "Initialized %d/%d can bus device(s)", i, t);
std::fread(&fd_conf_content[0], 1, fd_conf_content.size(), fd);
std::fclose(fd);
- DEBUG(binder_interface, "Conf file content : %s", fd_conf_content.c_str());
+ DEBUG(binder_interface, "Configuration file content : %s", fd_conf_content.c_str());
jo = json_tokener_parse(fd_conf_content.c_str());
if (jo == NULL || !json_object_object_get_ex(jo, "canbus", &canbus))
return can_message_mutex_;
}
-std::condition_variable& can_bus_t::get_new_decoded_can_message()
-{
- return new_decoded_can_message_;
-}
-
-std::mutex& can_bus_t::get_decoded_can_message_mutex()
-{
- return decoded_can_message_mutex_;
-}
-
can_message_t can_bus_t::next_can_message()
{
can_message_t can_msg;
{
can_msg = can_message_q_.front();
can_message_q_.pop();
- DEBUG(binder_interface, "next_can_message: Here is the next can message : id %d, length %d", can_msg.get_id(), can_msg.get_length());
+ DEBUG(binder_interface, "next_can_message: Here is the next can message : id %X, length %X", can_msg.get_id(), can_msg.get_length());
return can_msg;
}
can_message_q_.push(can_msg);
}
-bool can_bus_t::has_can_message() const
-{
- return has_can_message_;
-}
-
openxc_VehicleMessage can_bus_t::next_vehicle_message()
{
openxc_VehicleMessage v_msg;
has_vehicle_message_ = true;
}
-bool can_bus_t::has_vehicle_message() const
+std::map<std::string, std::shared_ptr<can_bus_dev_t>> can_bus_t::get_can_devices()
{
- return has_vehicle_message_;
+ return can_devices_m_;
}
/********************************************************************************
*********************************************************************************/
can_bus_dev_t::can_bus_dev_t(const std::string &dev_name)
- : device_name_{dev_name}
+ : device_name_{dev_name}, can_socket_{-1}
{
}
int can_bus_dev_t::open()
{
const int canfd_on = 1;
+ const int timestamp_on = 1;
struct ifreq ifr;
- struct timeval timeout = {1, 0};
+ struct timeval timeout;
DEBUG(binder_interface, "CAN Handler socket : %d", can_socket_);
if (can_socket_ >= 0)
return 0;
can_socket_ = ::socket(PF_CAN, SOCK_RAW, CAN_RAW);
+ DEBUG(binder_interface, "CAN Handler socket correctly initialized : %d", can_socket_);
if (can_socket_ < 0)
- {
- ERROR(binder_interface, "socket could not be created");
- }
+ ERROR(binder_interface, "socket could not be created. Error was : %s", ::strerror(errno));
else
{
/* Set timeout for read */
::setsockopt(can_socket_, SOL_SOCKET, SO_RCVTIMEO, (char *)&timeout, sizeof(timeout));
+ /* Set timestamp for receveid frame */
+ if (::setsockopt(can_socket_, SOL_SOCKET, SO_TIMESTAMP, ×tamp_on, sizeof(timestamp_on)) < 0)
+ WARNING(binder_interface, "setsockopt SO_TIMESTAMP error: %s", ::strerror(errno));
+ DEBUG(binder_interface, "Switch CAN Handler socket to use fd mode");
/* try to switch the socket into CAN_FD mode */
if (::setsockopt(can_socket_, SOL_CAN_RAW, CAN_RAW_FD_FRAMES, &canfd_on, sizeof(canfd_on)) < 0)
{
NOTICE(binder_interface, "Can not switch into CAN Extended frame format.");
is_fdmode_on_ = false;
} else {
+ DEBUG(binder_interface, "Correctly set up CAN socket to use FD frames.");
is_fdmode_on_ = true;
}
/* Attempts to open a socket to CAN bus */
::strcpy(ifr.ifr_name, device_name_.c_str());
+ DEBUG(binder_interface, "ifr_name is : %s", ifr.ifr_name);
if(::ioctl(can_socket_, SIOCGIFINDEX, &ifr) < 0)
- ERROR(binder_interface, "ioctl failed");
+ ERROR(binder_interface, "ioctl failed. Error was : %s", strerror(errno));
else
{
txAddress_.can_family = AF_CAN;
txAddress_.can_ifindex = ifr.ifr_ifindex;
/* And bind it to txAddress */
+ DEBUG(binder_interface, "Bind the socket");
if (::bind(can_socket_, (struct sockaddr *)&txAddress_, sizeof(txAddress_)) < 0)
- ERROR(binder_interface, "Bind failed");
+ ERROR(binder_interface, "Bind failed. %s", strerror(errno));
else
return 0;
}
{
ssize_t nbytes;
//int maxdlen;
- canfd_frame canfd_frame;
+ struct canfd_frame cfd;
/* Test that socket is really opened */
if (can_socket_ < 0)
is_running_ = false;
}
- nbytes = ::read(can_socket_, &canfd_frame, CANFD_MTU);
+ nbytes = ::read(can_socket_, &cfd, CANFD_MTU);
- switch(nbytes)
+ /* if we did not fit into CAN sized messages then stop_reading. */
+ if (nbytes != CANFD_MTU && nbytes != CAN_MTU)
{
- case CANFD_MTU:
- DEBUG(binder_interface, "read_can: Got an CAN FD frame with length %d", canfd_frame.len);
- //maxdlen = CANFD_MAX_DLEN;
- break;
- case CAN_MTU:
- DEBUG(binder_interface, "read_can: Got a legacy CAN frame with length %d", canfd_frame.len);
- //maxdlen = CAN_MAX_DLEN;
- break;
- default:
- if (errno == ENETDOWN)
- ERROR(binder_interface, "read_can: %s binder_interface down", device_name_);
- ERROR(binder_interface, "read_can: Error reading CAN bus");
- ::memset(&canfd_frame, 0, sizeof(canfd_frame));
- is_running_ = false;
- break;
+ if (errno == ENETDOWN)
+ ERROR(binder_interface, "read: %s CAN device down", device_name_);
+ ERROR(binder_interface, "read: Incomplete CAN(FD) frame");
+ ::memset(&cfd, 0, sizeof(cfd));
}
-
- return canfd_frame;
+
+ return cfd;
}
void can_bus_dev_t::start_reading(can_bus_t& can_bus)
{
- th_reading_ = std::thread(can_reader, std::ref(*this), std::ref(can_bus));
+ DEBUG(binder_interface, "Launching reading thread");
is_running_ = true;
+ th_reading_ = std::thread(&can_bus_dev_t::can_reader, this, std::ref(can_bus));
+ if(!th_reading_.joinable())
+ is_running_ = false;
}
-/*
- * Return is_running_ bool
- */
-bool can_bus_dev_t::is_running()
+void can_bus_dev_t::stop_reading()
{
- return is_running_;
+ is_running_ = false;
+}
+
+void can_bus_dev_t::can_reader(can_bus_t& can_bus)
+{
+ can_message_t can_message;
+
+ DEBUG(binder_interface, "Beginning of reading thread");
+ while(is_running_)
+ {
+ can_message.convert_from_canfd_frame(read());
+
+ {
+ std::lock_guard<std::mutex> can_message_lock(can_bus.get_can_message_mutex());
+ can_bus.push_new_can_message(can_message);
+ }
+ can_bus.get_new_can_message().notify_one();
+ }
}
int can_bus_dev_t::send_can_message(can_message_t& can_msg)
Code Review / apps / agl-service-can-low-level.git / blobdiff