Line data    Source code

       1             : /*
       2             :  * This file is free software: you can redistribute it and/or modify it
       3             :  * under the terms of the GNU General Public License as published by the
       4             :  * Free Software Foundation, either version 3 of the License, or
       5             :  * (at your option) any later version.
       6             :  *
       7             :  * This file is distributed in the hope that it will be useful, but
       8             :  * WITHOUT ANY WARRANTY; without even the implied warranty of
       9             :  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
      10             :  * See the GNU General Public License for more details.
      11             :  *
      12             :  * You should have received a copy of the GNU General Public License along
      13             :  * with this program.  If not, see <http://www.gnu.org/licenses/>.
      14             :  *
      15             :  * Code by Charlie Johnson
      16             :  */
      17             : 
      18             : #pragma once
      19             : 
      20             : #include "AP_BattMonitor_Backend.h"
      21             : 
      22             : #if AP_BATTERY_FUELLEVEL_ANALOG_ENABLED
      23             : 
      24             : #include <Filter/LowPassFilter.h>
      25             : #include "AP_BattMonitor.h"
      26             : #include <Filter/Filter.h>             // Filter library
      27             : 
      28             : class AP_BattMonitor_FuelLevel_Analog : public AP_BattMonitor_Backend
      29             : {
      30             : public:
      31             : 
      32             :     // Constructor
      33             :     AP_BattMonitor_FuelLevel_Analog(AP_BattMonitor &mon, AP_BattMonitor::BattMonitor_State &mon_state, AP_BattMonitor_Params &params);
      34             : 
      35             :     static const struct AP_Param::GroupInfo var_info[];
      36             : 
      37             :     // Read the battery voltage and current.  Should be called at 10hz
      38             :     void read() override;
      39             : 
      40             :     // returns true if battery monitor provides consumed energy info
      41           0 :     bool has_consumed_energy() const override { return true; }
      42             : 
      43             :     // returns true if battery monitor provides current info (or capacity)
      44           0 :     bool has_current() const override { return true; }
      45             : 
      46           0 :     void init(void) override {}
      47             : 
      48             : private:
      49             : 
      50             :     AP_Float _fuel_level_empty_voltage;
      51             :     AP_Float _fuel_level_voltage_mult;
      52             :     AP_Float _fuel_level_filter_frequency;
      53             :     AP_Int8  _pin;
      54             :     AP_Float _fuel_fit_first_order_coeff;
      55             :     AP_Float _fuel_fit_second_order_coeff;
      56             :     AP_Float _fuel_fit_third_order_coeff;
      57             :     AP_Float _fuel_fit_offset;
      58             :     AP_HAL::AnalogSource *_analog_source;
      59             : 
      60             :     LowPassFilterFloat _voltage_filter;
      61             : 
      62             : };
      63             : 
      64             : #endif  // AP_BATTERY_FUELLEVEL_ANALOG_ENABLED