From 39dbf05c8fe57e7df34a2c91bc4a910782f2bcb1 Mon Sep 17 00:00:00 2001 From: Randy Mackay Date: Thu, 4 Dec 2014 14:36:17 +0900 Subject: [PATCH] BattMon_Backend: create backend class --- .../AP_BattMonitor/AP_BattMonitor_Backend.cpp | 36 +++++++++++++++ .../AP_BattMonitor/AP_BattMonitor_Backend.h | 44 +++++++++++++++++++ 2 files changed, 80 insertions(+) create mode 100644 libraries/AP_BattMonitor/AP_BattMonitor_Backend.cpp create mode 100644 libraries/AP_BattMonitor/AP_BattMonitor_Backend.h diff --git a/libraries/AP_BattMonitor/AP_BattMonitor_Backend.cpp b/libraries/AP_BattMonitor/AP_BattMonitor_Backend.cpp new file mode 100644 index 0000000000..d2caa4968a --- /dev/null +++ b/libraries/AP_BattMonitor/AP_BattMonitor_Backend.cpp @@ -0,0 +1,36 @@ +// -*- 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 . + */ + +#include +#include +#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]); +} diff --git a/libraries/AP_BattMonitor/AP_BattMonitor_Backend.h b/libraries/AP_BattMonitor/AP_BattMonitor_Backend.h new file mode 100644 index 0000000000..9c02a299f9 --- /dev/null +++ b/libraries/AP_BattMonitor/AP_BattMonitor_Backend.h @@ -0,0 +1,44 @@ +// -*- 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 . + */ + +#ifndef __AP_BATTMONITOR_BACKEND_H__ +#define __AP_BATTMONITOR_BACKEND_H__ + +#include +#include +#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__