137 lines
4.7 KiB
C++
137 lines
4.7 KiB
C++
/*
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(C) Andreas Vogel andreas@wellenvogel.de
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This code is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This code is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef _GWSENSORS_H
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#define _GWSENSORS_H
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#include "GwConfigItem.h"
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#include <Arduino.h>
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#include <memory>
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#include <vector>
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class GwApi;
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class GwConfigHandler;
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class SensorBase{
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public:
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using BusType=enum{
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IIC=0,
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SPI=1,
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UNKNOWN=-1
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};
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using Ptr=std::shared_ptr<SensorBase>;
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BusType busType=BusType::UNKNOWN;
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int busId=0;
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int iid=99; //N2K instanceId
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int addr=-1;
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const String prefix;
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long intv=0;
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bool ok=false;
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SensorBase(BusType bt,GwApi *api,const String &prfx)
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:busType(bt),prefix(prfx){
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}
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using Creator=std::function<SensorBase *(GwApi *api,const String &prfx)>;
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virtual bool isActive(){return false;};
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virtual bool initDevice(GwApi *api,void *bus){return false;};
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virtual bool preinit(GwApi * api){return false;}
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virtual void measure(GwApi * api,void *bus, int counterId){};
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virtual ~SensorBase(){}
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virtual void readConfig(GwConfigHandler *cfg)=0;
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};
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template<typename BUS,SensorBase::BusType bt>
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class SensorTemplate : public SensorBase{
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public:
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SensorTemplate(GwApi *api,const String &prfx)
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:SensorBase(bt,api,prfx){}
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virtual bool initDevice(GwApi *api,BUS *bus){return false;};
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virtual bool initDevice(GwApi *api,void *bus){
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if (busType != bt) return false;
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return initDevice(api,(BUS*)bus);
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}
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virtual void measure(GwApi * api,void *bus, int counterId){
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if (busType != bt) return;
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measure(api,(BUS*)bus,counterId);
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};
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protected:
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virtual void measure(GwApi *api,BUS *bus, int counterId)=0;
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};
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class SensorList : public std::vector<SensorBase::Ptr>{
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public:
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void add(SensorBase::Ptr sensor);
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using std::vector<SensorBase::Ptr>::vector;
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};
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/**
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* helper classes for a simplified sensor configuration
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* by creating a list of type GwSensorConfigInitializerList<SensorClass> we can populate
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* it by static instances of GwSensorConfigInitializer (using GWSENSORCONFIG ) that each has
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* a function that populates the sensor config from the config data.
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* For using sensors this is not really necessary - but it can simplify the code for a sensor
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* if you want to support a couple of instances on different buses.
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* By using this approach you still can write functions using the CFG_SGET macros that will check
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* your config definitions at compile time.
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*
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*/
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template <typename T>
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class GwSensorConfig{
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public:
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using ReadConfig=std::function<void(T*,GwConfigHandler*)>;
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ReadConfig configReader;
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String prefix;
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GwSensorConfig(const String &prfx,ReadConfig f):prefix(prfx),configReader(f){
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}
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bool readConfig(T* s,GwConfigHandler *cfg){
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if (s == nullptr) return false;
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configReader(s,cfg);
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return s->ok;
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}
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};
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template<typename T>
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class GwSensorConfigInitializer : public GwInitializer<GwSensorConfig<T>>{
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public:
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using GwInitializer<GwSensorConfig<T>>::GwInitializer;
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};
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template<typename T>
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class GwSensorConfigInitializerList : public GwInitializer<GwSensorConfig<T>>::List{
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public:
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using GwInitializer<GwSensorConfig<T>>::List::List;
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bool readConfig(T *s,GwConfigHandler *cfg){
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for (auto &&scfg:*this){
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if (scfg.readConfig(s,cfg)) return true;
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}
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return false;
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}
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bool knowsPrefix(const String &prefix){
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for (auto &&scfg:*this){
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if (scfg.prefix == prefix) return true;
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}
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return false;
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}
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};
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#define CFG_SGET(s, name, prefix) \
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cfg->getValue(s->name, GwConfigDefinitions::prefix##name)
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#define GWSENSORCONFIG(list,type,prefix,initFunction) \
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GwSensorConfigInitializer<type> __init ## type ## prefix(list,GwSensorConfig<type>(#prefix,initFunction));
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#define GWSENSORDEF(list,type,init,prefix,bus,baddr) \
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GWSENSORCONFIG(list, type, prefix, [](type *s, GwConfigHandler *cfg) { init(s, prefix, bus, baddr); });
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#define CFG_GET(name,prefix) \
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cfg->getValue(name, GwConfigDefinitions::prefix ## name)
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#endif |