low-can-binding/diagnostic/diagnostic-message.hpp

   1 /*
   2  * Copyright (C) 2015, 2016 "IoT.bzh"
   3  * Author "Romain Forlot" <romain.forlot@iot.bzh>
   4  *
   5  * Licensed under the Apache License, Version 2.0 (the "License");
   6  * you may not use this file except in compliance with the License.
   7  * You may obtain a copy of the License at
   8  *
   9  *       http://www.apache.org/licenses/LICENSE-2.0
  10  *
  11  * Unless required by applicable law or agreed to in writing, software
  12  * distributed under the License is distributed on an "AS IS" BASIS,
  13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14  * See the License for the specific language governing permissions and
  15  * limitations under the License.
  16  */
  17
  18 #pragma once
  19
  20 #include <vector>
  21 #include <string>
  22
  23 #include "uds/uds.h"
  24 #include "../can/can-message.hpp"
  25 #include "active-diagnostic-request.hpp"
  26
  27 enum UNIT {
  28         POURCENT,
  29         DEGREES_CELSIUS,
  30         KPA,
  31         RPM,
  32         GRAMS_SEC,
  33         SECONDS,
  34         KM,
  35         KM_H,
  36         PA,
  37         NM,
  38         INVALID
  39 };
  40
  41 ///
  42 /// @brief - A representation of an OBD-II PID.
  43 ///
  44 class diagnostic_message_t {
  45         private:
  46                 uint8_t pid_; /*!< pid_ - The 1 byte PID.*/
  47                 std::string generic_name_; /*!< generic_name_ - A human readable name to use for this PID when published.*/
  48                 int min_; /*!< min_ - Minimum value that can take this pid */
  49                 int max_; /*!< max_ - Maximum value that can take this pid */
  50                 enum UNIT unit_; /*!< unit_ : Which unit system is used by that pid. See enum UNIT above.*/
  51                 float frequency_; /*!< frequency_ - The frequency to request this PID if supported by the vehicle when automatic, recurring OBD-II requests are enabled.*/
  52                 DiagnosticResponseDecoder decoder_; /*!< decoder_ - An optional DiagnosticResponseDecoder to parse the payload of responses
  53                                                                                          * to this request. If the decoder is NULL, the output will include the raw payload
  54                                                                                          * instead of a parsed value.*/
  55                 DiagnosticResponseCallback callback_; /*!< callback_ - An optional DiagnosticResponseCallback to be notified whenever a
  56                                                                                            * response is received for this request.*/
  57
  58                 bool supported_; /*!< supported_ - boolean indicating whether this pid is supported by the vehicle or not.*/
  59
  60         public:
  61                 const char* generic_name = generic_name_.c_str();
  62                 diagnostic_message_t(uint8_t pid, const std::string generic_name, const int min, const int max, enum UNIT unit, float frequency,
  63                                                                                         DiagnosticResponseDecoder decoder, DiagnosticResponseCallback callback, bool supported);
  64
  65                 uint32_t get_pid();
  66                 const std::string& get_generic_name() const;
  67                 const std::string get_name() const;
  68                 float get_frequency() const;
  69                 DiagnosticResponseDecoder get_decoder() const;
  70                 DiagnosticResponseCallback get_callback() const;
  71                 bool get_supported() const;
  72
  73                 void set_supported(bool value);
  74
  75                 const DiagnosticRequest build_diagnostic_request();
  76
  77                 bool is_obd2_response(const can_message_t& can_message);
  78                 bool is_obd2_request(const DiagnosticRequest *request);
  79 };