mirror of https://github.com/joan2937/pigpio
36 lines
723 B
C++
36 lines
723 B
C++
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#ifndef ROTARY_ENCODER_HPP
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#define ROTARY_ENCODER_HPP
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#include <stdint.h>
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typedef void (*re_decoderCB_t)(int);
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class re_decoder
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{
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int mygpioA, mygpioB, levA, levB, lastGpio;
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re_decoderCB_t mycallback;
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void _pulse(int gpio, int level, uint32_t tick);
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/* Need a static callback to link with C. */
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static void _pulseEx(int gpio, int level, uint32_t tick, void *user);
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public:
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re_decoder(int gpioA, int gpioB, re_decoderCB_t callback);
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/*
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This function establishes a rotary encoder on gpioA and gpioB.
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When the encoder is turned the callback function is called.
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*/
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void re_cancel(void);
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/*
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This function releases the resources used by the decoder.
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*/
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};
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#endif
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