gem_controller.h

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/******************************************************************************
 * Copyright 2018 The Apollo Authors. All Rights Reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *****************************************************************************/

#pragma once

#include <memory>
#include <thread>

#include "cyber/common/macros.h"

#include "modules/canbus/proto/canbus_conf.pb.h"
#include "modules/canbus/proto/chassis.pb.h"
#include "modules/canbus/proto/vehicle_parameter.pb.h"
#include "modules/common/proto/error_code.pb.h"
#include "modules/control/proto/control_cmd.pb.h"

#include "modules/canbus/vehicle/gem/protocol/accel_cmd_67.h"
#include "modules/canbus/vehicle/gem/protocol/brake_cmd_6b.h"
#include "modules/canbus/vehicle/gem/protocol/global_cmd_69.h"
#include "modules/canbus/vehicle/gem/protocol/shift_cmd_65.h"
#include "modules/canbus/vehicle/gem/protocol/steering_cmd_6d.h"
#include "modules/canbus/vehicle/gem/protocol/turn_cmd_63.h"
#include "modules/canbus/vehicle/vehicle_controller.h"

namespace apollo {
namespace canbus {
namespace gem {

class GemController final : public VehicleController {
 public:
  GemController() {}

  virtual ~GemController();

  ::apollo::common::ErrorCode Init(
      const VehicleParameter& params,
      CanSender<::apollo::canbus::ChassisDetail>* const can_sender,
      MessageManager<::apollo::canbus::ChassisDetail>* const message_manager)
      override;

  bool Start() override;

  void Stop() override;

  Chassis chassis() override;

  FRIEND_TEST(GemControllerTest, SetDrivingMode);
  FRIEND_TEST(GemControllerTest, Status);
  FRIEND_TEST(GemControllerTest, UpdateDrivingMode);

 private:
  // main logical function for operation the car enter or exit the auto driving
  void Emergency() override;
  ::apollo::common::ErrorCode EnableAutoMode() override;
  ::apollo::common::ErrorCode DisableAutoMode() override;
  ::apollo::common::ErrorCode EnableSteeringOnlyMode() override;
  ::apollo::common::ErrorCode EnableSpeedOnlyMode() override;

  // NEUTRAL, REVERSE, DRIVE
  void Gear(Chassis::GearPosition state) override;

  // brake with new acceleration
  // acceleration:0.00~99.99, unit:
  // acceleration_spd: 60 ~ 100, suggest: 90
  void Brake(double acceleration) override;

  // drive with old acceleration
  // gas:0.00~99.99 unit:
  void Throttle(double throttle) override;

  // drive with acceleration/deceleration
  // acc:-7.0~5.0 unit:m/s^2
  void Acceleration(double acc) override;

  // steering with old angle speed
  // angle:-99.99~0.00~99.99, unit:, left:+, right:-
  void Steer(double angle) override;

  // steering with new angle speed
  // angle:-99.99~0.00~99.99, unit:, left:+, right:-
  // angle_spd:0.00~99.99, unit:deg/s
  void Steer(double angle, double angle_spd) override;

  // set Electrical Park Brake
  void SetEpbBreak(const ::apollo::control::ControlCommand& command) override;
  void SetBeam(const ::apollo::control::ControlCommand& command) override;
  void SetHorn(const ::apollo::control::ControlCommand& command) override;
  void SetTurningSignal(
      const ::apollo::control::ControlCommand& command) override;

  void ResetProtocol();
  bool CheckChassisError();

 private:
  void SecurityDogThreadFunc();
  virtual bool CheckResponse(const int32_t flags, bool need_wait);
  void set_chassis_error_mask(const int32_t mask);
  int32_t chassis_error_mask();
  Chassis::ErrorCode chassis_error_code();
  void set_chassis_error_code(const Chassis::ErrorCode& error_code);

 private:
  // control protocol
  Accelcmd67* accel_cmd_67_ = nullptr;
  Brakecmd6b* brake_cmd_6b_ = nullptr;
  Shiftcmd65* shift_cmd_65_ = nullptr;
  Steeringcmd6d* steering_cmd_6d_ = nullptr;
  Turncmd63* turn_cmd_63_ = nullptr;
  Globalcmd69* global_cmd_69_ = nullptr;

  Chassis chassis_;
  std::unique_ptr<std::thread> thread_;
  bool is_chassis_error_ = false;

  std::mutex chassis_error_code_mutex_;
  Chassis::ErrorCode chassis_error_code_ = Chassis::NO_ERROR;

  std::mutex chassis_mask_mutex_;
  int32_t chassis_error_mask_ = 0;
};

}  // namespace gem
}  // namespace canbus
}  // namespace apollo