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BattMon_Backend: create backend class

This commit is contained in:
Randy Mackay 2014-12-04 14:36:17 +09:00
parent eec66d8451
commit 39dbf05c8f
2 changed files with 80 additions and 0 deletions
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36
libraries/AP_BattMonitor/AP_BattMonitor_Backend.cpp Normal file
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// -*- tab-width: 4; Mode: C++; c-basic-offset: 4; indent-tabs-mode: nil -*-
/*
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <AP_Common.h>
#include <AP_HAL.h>
#include "AP_BattMonitor.h"
#include "AP_BattMonitor_Backend.h"
/*
base class constructor.
This incorporates initialisation as well.
*/
AP_BattMonitor_Backend::AP_BattMonitor_Backend(AP_BattMonitor &mon, uint8_t instance, AP_BattMonitor::BattMonitor_State &mon_state) :
_mon(mon),
_state(mon_state)
{
}
/// capacity_remaining_pct - returns the % battery capacity remaining (0 ~ 100)
uint8_t AP_BattMonitor_Backend::capacity_remaining_pct() const
{
return (100.0f * (_mon._pack_capacity[_state.instance] - _state.current_total_mah) / _mon._pack_capacity[_state.instance]);
}

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libraries/AP_BattMonitor/AP_BattMonitor_Backend.h Normal file
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// -*- tab-width: 4; Mode: C++; c-basic-offset: 4; indent-tabs-mode: nil -*-
/*
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef __AP_BATTMONITOR_BACKEND_H__
#define __AP_BATTMONITOR_BACKEND_H__
#include <AP_Common.h>
#include <AP_HAL.h>
#include "AP_BattMonitor.h"
class AP_BattMonitor_Backend
{
public:
// constructor. This incorporates initialisation as well.
AP_BattMonitor_Backend(AP_BattMonitor &mon, uint8_t instance, AP_BattMonitor::BattMonitor_State &mon_state);
// we declare a virtual destructor so that BattMonitor driver can
// override with a custom destructor if need be
virtual ~AP_BattMonitor_Backend(void) {}
// read the latest battery voltage
virtual void read() = 0;
/// capacity_remaining_pct - returns the % battery capacity remaining (0 ~ 100)
uint8_t capacity_remaining_pct() const;
protected:
AP_BattMonitor &_mon; // reference to front-end
AP_BattMonitor::BattMonitor_State &_state; // reference to this instances state (held in the front-end)
};
#endif // __AP_BATTMONITOR_BACKEND_H__