src/diagnostic/diagnostic-message.cpp

   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 #include "diagnostic-message.hpp"
  19
  20 #include "../configuration.hpp"
  21 #include "../utils/signals.hpp"
  22
  23 const char *UNIT_NAMES[10] = {
  24         "POURCENT",
  25         "DEGREES_CELSIUS",
  26         "KPA",
  27         "RPM",
  28         "GRAMS_SEC",
  29         "SECONDS",
  30         "KM",
  31         "KM_H",
  32         "PA",
  33         "NM"
  34 };
  35
  36 diagnostic_message_t::diagnostic_message_t(uint8_t pid, const std::string generic_name, const int min, const int max, enum UNIT unit, float frequency,
  37                                                                                         DiagnosticResponseDecoder decoder, DiagnosticResponseCallback callback, bool supported)
  38         : pid_{pid}, generic_name_{generic_name}, min_{min}, max_{max}, unit_{unit}, frequency_{frequency}, decoder_{decoder}, callback_{callback}, supported_{supported}
  39 {}
  40
  41 uint32_t diagnostic_message_t::get_pid()
  42 {
  43         return (uint32_t)pid_;
  44 }
  45
  46 const std::string& diagnostic_message_t::get_generic_name() const
  47 {
  48         return generic_name_;
  49 }
  50
  51 const std::string diagnostic_message_t::get_name() const
  52 {
  53         return active_diagnostic_request_t::get_prefix() + "." + generic_name_;
  54 }
  55
  56 float diagnostic_message_t::get_frequency() const
  57 {
  58         return frequency_;
  59 }
  60
  61 DiagnosticResponseDecoder diagnostic_message_t::get_decoder() const
  62 {
  63         return decoder_;
  64 }
  65 DiagnosticResponseCallback diagnostic_message_t::get_callback() const
  66 {
  67         return callback_;
  68 }
  69
  70 /**
  71  * @brief Build a DiagnosticRequest struct to be passed
  72  *  to diagnostic manager instance.
  73  */
  74 const DiagnosticRequest diagnostic_message_t::build_diagnostic_request()
  75 {
  76         return {/*arbitration_id: */OBD2_FUNCTIONAL_BROADCAST_ID,
  77                         /*mode: */0x1,
  78                         /*has_pid: */true,
  79                         /*pid: */pid_,
  80                         /*pid_length: */0,
  81                         /*payload[]: */{0},
  82                         /*payload_length: */0,
  83                         /*no_frame_padding: */false,
  84                         /*DiagnosticRequestType: */DiagnosticRequestType::DIAGNOSTIC_REQUEST_TYPE_PID };
  85 }
  86
  87 /**
  88 * @brief Check if a request is an OBD-II PID request.
  89 *
  90 * @return true if the request is a mode 1 request and it has a 1 byte PID.
  91 */
  92 bool diagnostic_message_t::is_obd2_request(const DiagnosticRequest* request)
  93 {
  94         return request->mode == 0x1 && request->has_pid && request->pid < 0xff;
  95 }