low-can-binding/utils/socketcan-j1939/socketcan-j1939-addressclaiming.hpp

   1 /*
   2  * Copyright (C) 2018, 2019 "IoT.bzh"
   3  * Author "Arthur Guyader" <arthur.guyader@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 #include <afb-timer.h>
  20
  21 #include "./socketcan-j1939.hpp"
  22
  23 namespace utils
  24 {
  25         class socketcan_j1939_addressclaiming_t : public socketcan_j1939_t
  26         {
  27                 public:
  28                         socketcan_j1939_addressclaiming_t();
  29                         virtual std::shared_ptr<message_t> read_message();
  30                         virtual int open(std::string device_name, pgn_t pgn);
  31                         virtual claiming_state get_state();
  32                         TimerHandleT *timer_handle_;
  33                         std::pair<uint64_t, bool> table_j1939_address_[J1939_IDLE_ADDR];
  34
  35                 private:
  36                         int claim_address(bool first_claim, bool new_address);
  37                         int pgn_request();
  38                         void initialize_table_j1939_address();
  39                         int save_addr_name(uint8_t addr, name_t name);
  40                         uint8_t choose_new_address();
  41                         uint8_t get_addr_table(name_t name);
  42                         void change_state(claiming_state new_state);
  43                         void launch_timer();
  44                         static int no_response_claiming(TimerHandleT *timerhandle);
  45                         static int free_timer_handle(void *timer_context);
  46
  47                         uint8_t current_address_;
  48                         bool signal_stop_;
  49                         claiming_state claiming_state_;
  50                         std::string device_name_;
  51         };
  52 }