/* * 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 "openxc.pb.h" #include "can-signals.hpp" /** * @brief The type signature for a function to handle a custom OpenXC command. * * @param[in] name - the name of the received command. * @param[in] value - the value of the received command, in a DynamicField. The actual type * may be a number, string or bool. * @param[in] event - an optional event from the received command, in a DynamicField. The * actual type may be a number, string or bool. * @param[in] signals - The list of all signals. * @param[in] signalCount - The length of the signals array. */ typedef void (*CommandHandler)(const char* name, openxc_DynamicField* value, openxc_DynamicField* event, can_signal_t* signals, int signalCount); /* @struct CanCommand * @brief The structure to represent a supported custom OpenXC command. * * @desc For completely customized CAN commands without a 1-1 mapping between an * OpenXC message from the host and a CAN signal, you can define the name of the * command and a custom function to handle it in the VI. An example is * the "turn_signal_status" command in OpenXC, which has a value of "left" or * "right". The vehicle may have separate CAN signals for the left and right * turn signals, so you will need to implement a custom command handler to send * the correct signals. * * Command handlers are also useful if you want to trigger multiple CAN messages * or signals from a signal OpenXC message. */ typedef struct { const char* generic_name; /*!< generic_name - The name of the command.*/ CommandHandler handler; /*!< handler - An function to process the received command's data and perform some * action.*/ } CanCommand; /* Public: Return an array of all OpenXC CAN commands enabled in the active * configuration that can write back to CAN with a custom handler. * * Commands not defined here are handled using a 1-1 mapping from the signals * list. */ CanCommand* getCommands(); /* Public: Return the length of the array returned by getCommandCount(). */ int getCommandCount();