PCF8574.h

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/*
 * PCF8574.h
 *
 *  Created on: 10.03.2022
 *      Author: Yannick
 */
 
#ifndef USEREXTENSIONS_SRC_PCF8574_H_
#define USEREXTENSIONS_SRC_PCF8574_H_
 
 
 
#include "ButtonSource.h"
#include "CommandHandler.h"
#include "cppmain.h"
#include "ChoosableClass.h"
#include "I2C.h"
#include "cpp_target_config.h"
#include "PersistentStorage.h"
#include "thread.hpp"
#ifdef I2C_PORT
class PCF8574 : public I2CDevice {
public:
    PCF8574(I2CPort &port);
    virtual ~PCF8574();
 
    //void configurePort(bool fastMode);
 
    uint8_t readByte(const uint8_t devAddr);
    void readByteIT(const uint8_t devAddr,uint8_t* data);
    void writeByteIT(const uint8_t devAddr,uint8_t* data);
    void writeByte(const uint8_t devAddr,uint8_t data);
 
//  void startI2CTransfer(I2CPort* port);
//  void endI2CTransfer(I2CPort* port);
 
//  void startI2CTransfer(I2CPort* port);
//  void endI2CTransfer(I2CPort* port);
 
 
protected:
    I2CPort &port;
    //I2C_InitTypeDef config;
    //volatile bool transferActive = false;
private:
    uint8_t lastWriteData = 0;
};
 
#ifdef PCF8574BUTTONS
class PCF8574Buttons : public PCF8574, public CommandHandler,public ButtonSource, public cpp_freertos::Thread {
public:
    PCF8574Buttons();
    virtual ~PCF8574Buttons();
 
    enum class PCF8574Buttons_commands : uint32_t {
        btnnum,invert,speed
    };
    void Run();
 
    void saveFlash();
    void restoreFlash();
 
    void i2cRxCompleted(I2CPort* port);
    void i2cError(I2CPort* port);
 
    CommandStatus command(const ParsedCommand& cmd,std::vector<CommandReply>& replies) override;
 
    uint8_t readButtons(uint64_t* buf);
    uint16_t getBtnNum(); // Amount of readable buttons
    void setBtnNum(uint8_t num);
 
    const virtual ClassIdentifier getInfo();
    static ClassIdentifier info;
    static bool isCreatable() {return true;};
 
    const ClassType getClassType() override {return ClassType::Buttonsource;};
 
    std::string getHelpstring(){return "btnnum/8 devices required. Addresses starting at 0x20.";}
 
    void rxDone(uint8_t dat);
 
private:
    bool invert = true;
    uint8_t numBytes = 1;
    uint64_t mask = 0xff;
    uint64_t lastButtons = 0;
    uint64_t currentButtons = 0;
 
    uint8_t lastByte=0;
    uint8_t lastData=0;
 
    uint32_t lastSuccess=0;
    const uint32_t timeout = 250;
    volatile bool readingData = false;
 
};
#endif
#endif // I2C
#endif /* USEREXTENSIONS_SRC_PCF8574_H_ */