Move plugins to external folder

applications/external/flipper_i2ctools/i2csniffer.h

@@ -0,0 +1,46 @@
+#pragma once
+
+#include <furi.h>
+#include <furi_hal.h>
+
+// I2C Pins
+#define pinSCL &gpio_ext_pc0
+#define pinSDA &gpio_ext_pc1
+
+// Bus States
+typedef enum { I2C_BUS_FREE, I2C_BUS_STARTED } i2cBusStates;
+
+// Max read size of i2c frame by message
+// Arbitraly defined
+// They're not real limit to maximum frames send
+#define MAX_MESSAGE_SIZE 128
+
+// Nb of records
+#define MAX_RECORDS 128
+
+/// @brief Struct used to store our reads
+typedef struct {
+    uint8_t data[MAX_MESSAGE_SIZE];
+    bool ack[MAX_MESSAGE_SIZE];
+    uint8_t bit_index;
+    uint8_t data_index;
+} i2cFrame;
+
+typedef struct {
+    bool started;
+    bool first;
+    i2cBusStates state;
+    i2cFrame frames[MAX_RECORDS];
+    uint8_t frame_index;
+    uint8_t menu_index;
+    uint8_t row_index;
+} i2cSniffer;
+
+void clear_sniffer_buffers(i2cSniffer* i2c_sniffer);
+void start_interrupts(i2cSniffer* i2c_sniffer);
+void stop_interrupts();
+void SDAcallback(void* _i2c_sniffer);
+void SCLcallback(void* _i2c_sniffer);
+
+i2cSniffer* i2c_sniffer_alloc();
+void i2c_sniffer_free(i2cSniffer* i2c_sniffer);