signal_reader.h

#pragma once
 
#include <stdint.h>
#include <stdlib.h>
#include <stdbool.h>
 
#include <furi_hal_gpio.h>
 
#ifdef __cplusplus
extern "C" {
#endif
 
typedef enum {
    SignalReaderEventTypeHalfBufferFilled,
    SignalReaderEventTypeFullBufferFilled,
} SignalReaderEventType;
 
typedef struct {
    uint8_t* data;
    size_t len;
} SignalReaderEventData;
 
typedef struct {
    SignalReaderEventType type;
    SignalReaderEventData* data;
} SignalReaderEvent;
 
typedef enum {
    SignalReaderTimeUnit64Mhz,
} SignalReaderTimeUnit;
 
typedef enum {
    SignalReaderPolarityNormal,
    SignalReaderPolarityInverted,
} SignalReaderPolarity;
 
typedef enum {
    SignalReaderTriggerNone,
    SignalReaderTriggerRisingFallingEdge,
} SignalReaderTrigger;
 
typedef void (*SignalReaderCallback)(SignalReaderEvent event, void* context);
 
typedef struct SignalReader SignalReader;
 
SignalReader* signal_reader_alloc(const GpioPin* gpio_pin, uint32_t size);
 
void signal_reader_free(SignalReader* instance);
 
void signal_reader_set_pull(SignalReader* instance, GpioPull pull);
 
void signal_reader_set_polarity(SignalReader* instance, SignalReaderPolarity polarity);
 
void signal_reader_set_sample_rate(
    SignalReader* instance,
    SignalReaderTimeUnit time_unit,
    uint32_t time);
 
void signal_reader_set_trigger(SignalReader* instance, SignalReaderTrigger trigger);
 
void signal_reader_start(SignalReader* instance, SignalReaderCallback callback, void* context);
 
void signal_reader_stop(SignalReader* instance);
 
#ifdef __cplusplus
}
#endif