nBus-bridge/Core/Inc/NbusCommunicator.h

/**
 * @file NbusCommunicator.h
 * @brief Deklarácia komunikačnej vrstvy: 1) internej 2) externej
 * @date Mar 7, 2025
 * @author Juraj Dudak
 */

#ifndef SRC_NBUSCOMMUNICATOR_H_
#define SRC_NBUSCOMMUNICATOR_H_

#include "inttypes.h"
#include "dataframe.h"
#include "nbus_structs.h"

#include "stm32l4xx_hal.h"


/* DEFINES BEGIN */

#define NBUS_MAX_FRAME_SIZE 64

#define UART_NBUS_RX_TIMEOUT	5

/* DEFINES END */

class NbusCommunicator {

private:
	uint8_t _data_packet_tx[NBUS_MAX_FRAME_SIZE];
	uint8_t _data_packet_comm[NBUS_MAX_FRAME_SIZE];
	uint8_t _data_packet_rx[NBUS_MAX_FRAME_SIZE];
	DataFrame *_packet_tx;
	DataFrame *_packet_rx;
	UART_HandleTypeDef *_uart_nbus;
	UART_HandleTypeDef *_uart_master;
	void _receive();
public:
	NbusCommunicator(UART_HandleTypeDef*, UART_HandleTypeDef*);
	void sendToMaster(DataFrame *master_frame);
	virtual ~NbusCommunicator();

	DataFrame* sendAndReceive(Nbus_pdu *pdu, uint8_t *data, uint8_t data_len);
	DataFrame* formatSlaveInfo(uint8_t rx_frame[], uint8_t slave_address[], uint8_t num);
	void send(Nbus_pdu *pdu, uint8_t *data, uint8_t data_len);

	DataFrame *formatPacket(uint8_t *rxFrame, uint8_t size);
};


#endif /* SRC_NBUSCOMMUNICATOR_H_ */