src/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 "can-signals.hpp"
  19
  20 #include <fnmatch.h>
  21
  22 #include "can-decoder.hpp"
  23 #include "low-can-binding.hpp"
  24
  25 std::vector<std::vector<CanMessageDefinition>> CAN_MESSAGES = {
  26         {{620, CanMessageFormat::STANDARD, {10, 0, nullptr}, false, (uint8_t)NULL}},
  27 };
  28
  29 /**
  30  * @brief Dumb SIGNALS array. It is composed by CanMessageSet
  31  * SIGNALS[MESSAGE_SET_ID][CanSignal]
  32  */
  33 std::vector<std::vector<CanSignal>> SIGNALS = {
  34         {{&(CAN_MESSAGES[0][0]), "can.driver_door.open", 2, 4, 1.000000, 0.000000, 0.000000, 0.000000, {10, 0, nullptr}, false, true, nullptr, 0, false, decoder_t::booleanDecoder, nullptr, false, (float)NULL}},
  35 };
  36
  37 /**
  38 * @brief Mutex allowing safe manipulation on subscribed_signals map.
  39 * @desc To ensure that the map object isn't modified when we read it, you
  40 *  have to set this mutex before use subscribed_signals map object.
  41 */
  42 std::mutex subscribed_signals_mutex;
  43
  44 std::mutex& get_subscribed_signals_mutex()
  45 {
  46         return subscribed_signals_mutex;
  47 }
  48
  49 const std::vector<CanSignal> getSignals()
  50 {
  51         return SIGNALS[MESSAGE_SET_ID];
  52 }
  53
  54 size_t getSignalCount()
  55 {
  56         return SIGNALS[MESSAGE_SET_ID].size();
  57 }
  58
  59 std::vector<CanSignal> find_can_signals(const openxc_DynamicField &key)
  60 {
  61         std::vector<CanSignal> signals;
  62
  63         switch(key.type)
  64         {
  65                 case openxc_DynamicField_Type::openxc_DynamicField_Type_STRING:
  66                         for(const CanSignal& s : getSignals())
  67                         {
  68                                 if(fnmatch(key.string_value, s.genericName, FNM_CASEFOLD) == 0)
  69                                         signals.push_back(s);
  70                         }
  71                         break;
  72                 case openxc_DynamicField_Type::openxc_DynamicField_Type_NUM:
  73                         for(const CanSignal& s : getSignals())
  74                         {
  75                                 CanMessageDefinition *msg_def = s.message;
  76                                 if(msg_def->id == key.numeric_value)
  77                                         signals.push_back(s);
  78                         }
  79                         break;
  80                 default:
  81                         ERROR(binder_interface, "find_can_signals: wrong openxc_DynamicField specified. Use openxc_DynamicField_Type_NUM or openxc_DynamicField_Type_STRING type only.");
  82                         CanSignal cs;
  83                         ::memset(&cs, 0, sizeof(CanSignal));
  84                         signals.push_back(cs);
  85                         return signals;
  86                         break;
  87         }
  88         return signals;
  89 }
  90
  91 inline uint32_t get_CanSignal_id(const CanSignal& sig)
  92 {
  93         return sig.message->id;
  94 }
  95
  96 const std::map<std::string, struct afb_event> get_subscribed_signals()
  97 {
  98         return subscribed_signals;
  99 }