summaryrefslogtreecommitdiffstats
path: root/src/low-can-binding.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'src/low-can-binding.cpp')
-rw-r--r--src/low-can-binding.cpp279
1 files changed, 0 insertions, 279 deletions
diff --git a/src/low-can-binding.cpp b/src/low-can-binding.cpp
deleted file mode 100644
index 07b3f1ea..00000000
--- a/src/low-can-binding.cpp
+++ /dev/null
@@ -1,279 +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-binding.hpp"
-
-#include <map>
-#include <queue>
-#include <mutex>
-#include <vector>
-#include <thread>
-#include <time.h>
-#include <linux/can.h>
-#include <json-c/json.h>
-
-#include "openxc.pb.h"
-#include "configuration.hpp"
-#include "can/can-bus.hpp"
-#include "can/can-signals.hpp"
-#include "can/can-message.hpp"
-#include "utils/timer.hpp"
-#include "utils/signals.hpp"
-#include "diagnostic/diagnostic-message.hpp"
-#include "utils/openxc-utils.hpp"
-
-extern "C"
-{
- #include <afb/afb-service-itf.h>
-};
-
-// Interface between the daemon and the binding
-const struct afb_binding_interface *binder_interface;
-
-void on_no_clients(std::string message)
-{
- DiagnosticRequest* diag_req = configuration_t::instance().get_request_from_diagnostic_message(message);
- if(diag_req != nullptr)
- {
- active_diagnostic_request_t* adr = configuration_t::instance().get_diagnostic_manager().find_recurring_request(diag_req);
- if( adr != nullptr)
- configuration_t::instance().get_diagnostic_manager().cleanup_request(adr, true);
- }
-}
-
-///******************************************************************************
-///
-/// Subscription and unsubscription
-///
-///*******************************************************************************/
-
-static int make_subscription_unsubscription(struct afb_req request, const std::string& sig_name, std::map<std::string, struct afb_event>& s, bool subscribe)
-{
- /* Make the subscription or unsubscription to the event */
- if (((subscribe ? afb_req_subscribe : afb_req_unsubscribe)(request, s[sig_name])) < 0)
- {
- ERROR(binder_interface, "make_subscription_unsubscription: Operation goes wrong for signal: %s", sig_name.c_str());
- return 0;
- }
- return 1;
-}
-
-static int create_event_handle(const std::string& sig_name, std::map<std::string, struct afb_event>& s)
-{
- s[sig_name] = afb_daemon_make_event(binder_interface->daemon, sig_name.c_str());
- if (!afb_event_is_valid(s[sig_name]))
- {
- ERROR(binder_interface, "create_event_handle: Can't create an event for %s, something goes wrong.", sig_name.c_str());
- return 0;
- }
- return 1;
-}
-
-static int subscribe_unsubscribe_signal(struct afb_req request, bool subscribe, const std::string& sig)
-{
- int ret;
-
- std::lock_guard<std::mutex> subscribed_signals_lock(get_subscribed_signals_mutex());
- std::map<std::string, struct afb_event>& s = get_subscribed_signals();
- if (s.find(sig) != s.end())
- {
- if (!afb_event_is_valid(s[sig]) && !subscribe)
- {
- NOTICE(binder_interface, "subscribe_unsubscribe_signal: Event isn't valid, it can't be unsubscribed.");
- ret = -1;
- }
- /*else
- {
- // Event it isn't valid annymore, recreate it
- ret = create_event_handle(sig, s);
- }*/
- }
- else
- {
- /* Event doesn't exist , so let's create it */
- struct afb_event empty_event = {nullptr, nullptr};
- subscribed_signals[sig] = empty_event;
- ret = create_event_handle(sig, s);
- }
-
- /* Check whether or not the event handler has been correctly created and
- * make the subscription/unsubscription operation is so.
- */
- if (ret <= 0)
- return ret;
- return make_subscription_unsubscription(request, sig, s, subscribe);
-}
-
-///
-/// @fn static int subscribe_unsubscribe_signals(struct afb_req request, bool subscribe, const std::vector<can_signal_t>& signals)
-/// @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] can_signal_t vector with can_signal_t to subscribe
-///
-/// @return Number of correctly subscribed signal
-///
-static int subscribe_unsubscribe_signals(struct afb_req request, bool subscribe, const std::vector<std::string>& signals)
-{
- int rets = 0;
-
- //TODO: Implement way to dynamically call the right function no matter
- // how much signals types we have.
-
- for(const std::string& sig : signals)
- {
- int ret;
- if (active_diagnostic_request_t::is_diagnostic_signal(sig))
- {
- diagnostic_message_t* diag_msg = configuration_t::instance().get_diagnostic_message(sig);
- DiagnosticRequest* diag_req = configuration_t::instance().get_request_from_diagnostic_message(diag_msg);
-
- // If the requested diagnostic message isn't supported by the car then unssubcribe.
- // no matter what we want, worse case will be a fail unsubscription but at least we don't
- // poll a PID for nothing.
- if(diag_msg->get_supported() && subscribe)
- {
- float frequency = diag_msg->get_frequency();
- subscribe = configuration_t::instance().get_diagnostic_manager().add_recurring_request(
- diag_req, sig.c_str(), false, diag_msg->get_decoder(), diag_msg->get_callback(), (float)frequency);
- //TODO: Adding callback requesting ignition status: diag_req, sig.c_str(), false, diagnostic_message_t::decode_obd2_response, diagnostic_message_t::check_ignition_status, frequency);
- }
- else
- {
- configuration_t::instance().get_diagnostic_manager().cleanup_request(
- configuration_t::instance().get_diagnostic_manager().find_recurring_request(diag_req), true);
- WARNING(binder_interface, "Signal: %s isn't supported. Canceling operation.", sig.c_str());
- return -1;
- }
- }
-
- ret = subscribe_unsubscribe_signal(request, subscribe, sig);
- if(ret <= 0)
- return ret;
- rets++;
-
- DEBUG(binder_interface, "Signal: %s subscribed", sig.c_str());
- }
- return rets;
-}
-
-static int subscribe_unsubscribe_name(struct afb_req request, bool subscribe, const char *name)
-{
- std::vector<std::string> signals;
- int ret = 0;
-
- openxc_DynamicField search_key = build_DynamicField(std::string(name));
- signals = find_signals(search_key);
- if (signals.empty())
- ret = 0;
-
- ret = subscribe_unsubscribe_signals(request, subscribe, signals);
- NOTICE(binder_interface, "Subscribed/unsubscribe correctly to %d/%d signal(s).", ret, (int)signals.size());
-
- return ret;
-}
-
-static void subscribe_unsubscribe(struct afb_req request, bool subscribe)
-{
- int ok, i, n;
- struct json_object *args, *a, *x;
-
- /* makes the subscription/unsubscription */
- args = afb_req_json(request);
- if (args == NULL || !json_object_object_get_ex(args, "event", &a)) {
- ok = subscribe_unsubscribe_name(request, subscribe, "*");
- } else if (json_object_get_type(a) != json_type_array) {
- ok = subscribe_unsubscribe_name(request, subscribe, json_object_get_string(a));
- } else {
- n = json_object_array_length(a);
- ok = 0;
- for (i = 0 ; i < n ; i++) {
- x = json_object_array_get_idx(a, i);
- if (subscribe_unsubscribe_name(request, subscribe, json_object_get_string(x)))
- ok++;
- }
- ok = (ok == n);
- }
-
- /* send the report */
- if (ok)
- afb_req_success(request, NULL, NULL);
- else
- afb_req_fail(request, "error", NULL);
-}
-
-extern "C"
-{
- static void subscribe(struct afb_req request)
- {
- subscribe_unsubscribe(request, true);
- }
-
- static void unsubscribe(struct afb_req request)
- {
- subscribe_unsubscribe(request, false);
- }
-
- static const struct afb_verb_desc_v1 verbs[]=
- {
- { .name= "subscribe", .session= AFB_SESSION_NONE, .callback= subscribe, .info= "subscribe to notification of CAN bus messages." },
- { .name= "unsubscribe", .session= AFB_SESSION_NONE, .callback= unsubscribe, .info= "unsubscribe a previous subscription." }
- };
-
- static const struct afb_binding binding_desc {
- AFB_BINDING_VERSION_1,
- {
- "Low level CAN bus service",
- "low-can",
- verbs
- }
- };
-
- const struct afb_binding *afbBindingV1Register (const struct afb_binding_interface *itf)
- {
- binder_interface = itf;
-
- return &binding_desc;
- }
-
- /// @brief Initialize the binding.
- ///
- /// @param[in] service Structure which represent the Application Framework Binder.
- ///
- /// @return Exit code, zero if success.
- int afbBindingV1ServiceInit(struct afb_service service)
- {
- can_bus_t& can_bus_manager = configuration_t::instance().get_can_bus_manager();
-
- /// Initialize CAN socket
- if(can_bus_manager.init_can_dev() == 0)
- {
- can_bus_manager.start_threads();
-
- /// Initialize Diagnostic manager that will handle obd2 requests.
- /// We pass by default the first CAN bus device to its Initialization.
- /// TODO: be able to choose the CAN bus device that will be use as Diagnostic bus.
- if(configuration_t::instance().get_diagnostic_manager().initialize())
- return 0;
- }
-
- ERROR(binder_interface, "There was something wrong with CAN device Initialization. Check your config file maybe");
- return 1;
- }
-};