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/*
* 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 <vector>
#include "uds/uds.h"
#include "can/can-bus.hpp"
#include "can/can-message.hpp"
#include "low-can-binding.hpp"
enum UNIT {
POURCENT,
DEGREES_CELSIUS,
KPA,
RPM,
GRAMS_SEC,
SECONDS,
KM,
KM_H,
PA,
NM,
INVALID
};
/**
* @brief A representation of an OBD-II PID.
*
* pid - The 1 byte PID.
* name - A human readable name to use for this PID when published.
* min - minimum value for this pid
* max - maximum value for this pid
* unit - unit used
* frequency - The frequency to request this PID if supported by the vehicle
* when automatic, recurring OBD-II requests are enabled.
* supported - is it supported by the vehicle. Initialized after scan
*/
typedef struct _Obd2Pid {
uint8_t pid;
const char* generic_name;
const int min;
const int max;
enum UNIT unit;
int frequency;
bool supported;
} Obd2Pid;
/**
* @brief - Object to handle obd2 session with pre-scan of supported pid
* then request them regularly
*/
class obd2_signal_t {
private:
uint8_t pid_; /*!< pid - The 1 byte PID.*/
const std::string generic_name_; /*!< generic_name_ - A human readable name to use for this PID when published.*/
const int min_; /*!< min_ - Minimum value that can take this pid */
const int max_; /*!< max_ - Maximum value that can take this pid */
enum UNIT unit_; /*!< unit_ : Which unit system is used by that pid. See enum UNIT above.*/
int frequency_; /*!< frequency - The frequency to request this PID if supported by the vehicle when automatic, recurring OBD-II requests are enabled.*/
bool supported_; /*!< supported_ - boolean indicating whether this pid is supported by the vehicle or not.*/
public:
const char* generic_name = generic_name_.c_str();
obd2_signal_t(uint8_t pid, const char* generic_name, const int min_, const int max_, enum UNIT unit, int frequency, bool supported);
uint32_t get_pid();
void add_request(int pid);
void find_obd2_signals(const openxc_DynamicField &key, std::vector<obd2_signal_t*>& found_signals);
bool is_obd2_response(can_message_t can_message);
bool is_obd2_request(DiagnosticRequest *request);
bool is_obd2_signal(const char *name);
float decode_obd2_response(const DiagnosticResponse* response, float parsedPayload);
};
uint32_t get_signal_id(obd2_signal_t& sig);
std::vector<obd2_signal_t>& get_obd2_signals();
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