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#pragma once
#include "../BaseSerialInterface.h"
#include <bluefruit.h>
#ifndef BLE_TX_POWER
#define BLE_TX_POWER 4
#endif
class SerialBLEInterface : public BaseSerialInterface {
BLEUart bleuart;
bool _isEnabled;
bool _isDeviceConnected;
uint16_t _conn_handle;
unsigned long _last_health_check;
unsigned long _last_retry_attempt;
struct Frame {
uint8_t len;
uint8_t buf[MAX_FRAME_SIZE];
};
#define FRAME_QUEUE_SIZE 12
uint8_t send_queue_len;
Frame send_queue[FRAME_QUEUE_SIZE];
uint8_t recv_queue_len;
Frame recv_queue[FRAME_QUEUE_SIZE];
void clearBuffers();
void shiftSendQueueLeft();
void shiftRecvQueueLeft();
bool isValidConnection(uint16_t handle, bool requireWaitingForSecurity = false) const;
bool isAdvertising() const;
static void onConnect(uint16_t connection_handle);
static void onDisconnect(uint16_t connection_handle, uint8_t reason);
static void onSecured(uint16_t connection_handle);
static bool onPairingPasskey(uint16_t connection_handle, uint8_t const passkey[6], bool match_request);
static void onPairingComplete(uint16_t connection_handle, uint8_t auth_status);
static void onBLEEvent(ble_evt_t* evt);
static void onBleUartRX(uint16_t conn_handle);
public:
SerialBLEInterface() {
_isEnabled = false;
_isDeviceConnected = false;
_conn_handle = BLE_CONN_HANDLE_INVALID;
_last_health_check = 0;
_last_retry_attempt = 0;
send_queue_len = 0;
recv_queue_len = 0;
}
/**
* init the BLE interface.
* @param prefix a prefix for the device name
* @param name IN/OUT - a name for the device (combined with prefix). If "@@MAC", is modified and returned
* @param pin_code the BLE security pin
*/
void begin(const char* prefix, char* name, uint32_t pin_code);
void disconnect();
void enable() override;
void disable() override;
bool isEnabled() const override { return _isEnabled; }
bool isConnected() const override;
bool isWriteBusy() const override;
size_t writeFrame(const uint8_t src[], size_t len) override;
size_t checkRecvFrame(uint8_t dest[]) override;
};
#if BLE_DEBUG_LOGGING && ARDUINO
#include <Arduino.h>
#define BLE_DEBUG_PRINT(F, ...) Serial.printf("BLE: " F, ##__VA_ARGS__)
#define BLE_DEBUG_PRINTLN(F, ...) Serial.printf("BLE: " F "\n", ##__VA_ARGS__)
#else
#define BLE_DEBUG_PRINT(...) {}
#define BLE_DEBUG_PRINTLN(...) {}
#endif
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