low-can-binding/can/can-signals.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 <fnmatch.h>
  19
  20 #include "can-signals.hpp"
  21
  22 #include "../binding/application.hpp"
  23 #include "../utils/signals.hpp"
  24 #include "can-decoder.hpp"
  25 #include "can-message.hpp"
  26 #include "can-bus.hpp"
  27 #include "../diagnostic/diagnostic-message.hpp"
  28 #include "canutil/write.h"
  29
  30 std::string can_signal_t::prefix_ = "messages";
  31
  32 can_signal_t::can_signal_t(
  33         std::string generic_name,
  34         uint8_t bit_position,
  35         uint8_t bit_size,
  36         float factor,
  37         float offset,
  38         float min_value,
  39         float max_value,
  40         frequency_clock_t frequency,
  41         bool send_same,
  42         bool force_send_changed,
  43         std::map<uint8_t, std::string> states,
  44         bool writable,
  45         signal_decoder decoder,
  46         signal_encoder encoder,
  47         bool received)
  48         : parent_{nullptr},
  49          generic_name_{ generic_name }
  50         , bit_position_{ bit_position }
  51         , bit_size_{ bit_size }
  52         , factor_{ factor }
  53         , offset_{ offset }
  54         , min_value_{min_value}
  55         , max_value_{max_value}
  56         , frequency_{frequency}
  57         , send_same_{send_same}
  58         , force_send_changed_{force_send_changed}
  59         , states_{states}
  60         , writable_{writable}
  61         , decoder_{decoder}
  62         , encoder_{encoder}
  63         , received_{received}
  64         , last_value_{.0f}
  65 {}
  66
  67 can_message_definition_t* can_signal_t::get_message() const
  68 {
  69         return parent_;
  70 }
  71
  72 const std::string can_signal_t::get_generic_name() const
  73 {
  74         return generic_name_;
  75 }
  76
  77 const std::string can_signal_t::get_name() const
  78 {
  79         return prefix_ + "." + generic_name_;
  80 }
  81
  82 uint8_t can_signal_t::get_bit_position() const
  83 {
  84         return bit_position_;
  85 }
  86
  87 uint8_t can_signal_t::get_bit_size() const
  88 {
  89         return bit_size_;
  90 }
  91
  92 float can_signal_t::get_factor() const
  93 {
  94         return factor_;
  95 }
  96
  97 float can_signal_t::get_offset() const
  98 {
  99         return offset_;
 100 }
 101
 102 frequency_clock_t& can_signal_t::get_frequency()
 103 {
 104         return frequency_;
 105 }
 106
 107 bool can_signal_t::get_send_same() const
 108 {
 109         return send_same_;
 110 }
 111
 112 const std::string can_signal_t::get_states(uint8_t value)
 113 {
 114         if (value < states_.size())
 115                 return states_[value];
 116         return std::string();
 117 }
 118
 119 uint64_t can_signal_t::get_states(const std::string& value) const
 120 {
 121         uint64_t ret = -1;
 122         for( const auto& state: states_)
 123         {
 124                 if(state.second == value)
 125                 {
 126                         ret = (uint64_t)state.first;
 127                         break;
 128                 }
 129         }
 130         return ret;
 131 }
 132
 133 bool can_signal_t::get_writable() const
 134 {
 135         return writable_;
 136 }
 137
 138 signal_decoder& can_signal_t::get_decoder()
 139 {
 140         return decoder_;
 141 }
 142
 143 signal_encoder& can_signal_t::get_encoder()
 144 {
 145         return encoder_;
 146 }
 147
 148 bool can_signal_t::get_received() const
 149 {
 150         return received_;
 151 }
 152
 153 float can_signal_t::get_last_value() const
 154 {
 155         return last_value_;
 156 }
 157
 158 std::pair<float, uint64_t> can_signal_t::get_last_value_with_timestamp() const
 159 {
 160         return std::make_pair(last_value_, frequency_.get_last_tick());
 161 }
 162
 163 void can_signal_t::set_parent(can_message_definition_t* parent)
 164 {
 165         parent_ = parent;
 166 }
 167
 168 void can_signal_t::set_received(bool r)
 169 {
 170         received_ = r;
 171 }
 172
 173 void can_signal_t::set_last_value(float val)
 174 {
 175         last_value_ = val;
 176 }
 177
 178 void can_signal_t::set_timestamp(uint64_t timestamp)
 179 {
 180         frequency_.tick(timestamp);
 181 }
 182