/*
 * arduino_com.h
 *
 *  Created on: 26 okt. 2016
 *      Author: Philip
 */

#ifndef DRIVERS_ARDUINO_COM_H_
#define DRIVERS_ARDUINO_COM_H_

#include "drivers/usart.h"

#define ARDUINO_BAUD 115200
#define ARDUINO_DMA_SIZE 20


/***********************************************************************
* BRIEF: RX packet structure from arduino com                          *
* INFORMATION: Contains the whole compass message 					   *
***********************************************************************/
typedef struct compass_data_t {
	uint8_t header;
	int16_t x;
	int16_t y;
	int16_t z;
	uint8_t crc;
} compass_data_t;

/***********************************************************************
* BRIEF: RX packet structure from arduino com                          *
* INFORMATION: Contains the whole gps data message 					   *
***********************************************************************/
typedef struct gps_data_t {
	uint8_t header;
	float latitude;
	float longitude;
	uint8_t crc;
} gps_data_t;

/* An instance of the GPS data read from Arduino Com */
gps_data_t gps_data;

/* An instance of the compass data read from Arduino Com */
compass_data_t compass_data;


/***********************************************************************
* BRIEF: Initializes the UART for Arduino com                          *
* INFORMATION: A DMA Buffer starts storing the bytes received from RX  *
***********************************************************************/
void arduinoCom_init(USART_TypeDef* usart_inst);

/***********************************************************************
* BRIEF: Checks if new RX packet is available                          *
* INFORMATION: Is called by the scheduler                              *
***********************************************************************/
bool arduino_frame_available();

/***********************************************************************
* BRIEF: Updates "gps_data" and "compass_data"         				   *
* INFORMATION: Is called by the scheduler                              *
***********************************************************************/
void arduino_read();

#endif /* DRIVERS_ARDUINO_COM_H_ */