25 lines
803 B
C++
25 lines
803 B
C++
#ifndef PORTINTERFACE_H
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#define PORTINTERFACE_H
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#include <Arduino.h>
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#include <inttypes.h>
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#include <PortWriteInterface.h>
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/*
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Port classes are the keybrd library's interface to microcontroller ports or I/O expander ports.
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Port classes that can read and write, inherit from PortInterface.
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Port classes that can only write, inherit from PortWriteInterface.
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write() interface emulates Arduino's digitalWrite().
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*/
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class PortInterface : public PortWriteInterface
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{
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public:
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virtual void beginProtocol()=0; //SPI bus or I2C bus
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virtual void begin(const uint8_t activeState)=0; //configure GPIO pins
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virtual void writeLow(const uint8_t pin)=0;
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virtual void writeHigh(const uint8_t pin)=0;
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virtual uint8_t read()=0;
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};
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#endif
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