mirror of
https://github.com/DarkFlippers/unleashed-firmware
synced 2024-12-18 08:43:10 +00:00
45 lines
1 KiB
C
45 lines
1 KiB
C
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#pragma once
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#include <furi.h>
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#include <furi_hal.h>
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// I2C Pins
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#define pinSCL &gpio_ext_pc0
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#define pinSDA &gpio_ext_pc1
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// Bus States
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typedef enum { I2C_BUS_FREE, I2C_BUS_STARTED } i2cBusStates;
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// Max read size of i2c frame by message
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// Arbitraly defined
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// They're not real limit to maximum frames send
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#define MAX_MESSAGE_SIZE 128
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// Nb of records
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#define MAX_RECORDS 32
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/// @brief Struct used to store our reads
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typedef struct {
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uint8_t data[MAX_MESSAGE_SIZE];
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bool ack[MAX_MESSAGE_SIZE];
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uint8_t bit_index;
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uint8_t data_index;
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} i2cFrame;
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typedef struct {
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bool started;
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bool first;
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i2cBusStates state;
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i2cFrame frames[MAX_RECORDS];
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uint8_t frame_index;
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uint8_t menu_index;
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} i2cSniffer;
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void clear_sniffer_buffers(i2cSniffer* i2c_sniffer);
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void start_interrupts(i2cSniffer* i2c_sniffer);
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void stop_interrupts();
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void SDAcallback(void* _i2c_sniffer);
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void SCLcallback(void* _i2c_sniffer);
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i2cSniffer* i2c_sniffer_alloc();
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void i2c_sniffer_free(i2cSniffer* i2c_sniffer);
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