Robin Mueller
1ac9e53b1f
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125 lines
2.8 KiB
C
125 lines
2.8 KiB
C
//**************************************************************************************
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/*! \copyright: 2020-2021 Thales Alenia Space Deutschland GmbH
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* \project: multiMIND
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* \file: (name of source file: uart.h)
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* \date: (20.05.2021)
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* \author: (Sarthak Kelapure)
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* \brief: (UART thread to collect data on serial interface)
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* \language: (C)
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**************************************************************************************
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*/
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#ifndef LIB_UART_H
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#define LIB_UART_H
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#define BUFF_SIZE 512
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#define POLL_TIMEOUT 2000
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#include <stdint.h>
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#include <stdbool.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <termios.h>
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#include <fcntl.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <pthread.h>
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#include <signal.h>
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#include <poll.h>
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#include <errno.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef struct serial_s serial_t;
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/**
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* Destroy the serial structure
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*/
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void uart_destroy(serial_t* s);
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/**
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* Initializes the serial connection
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* @param device - serial device name.
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* @param baud - baud rate for connection.
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* @return serial structure.
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*/
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serial_t* uart_init(char device[], int baud);
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/**
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* Send data.
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* @param s - serial structure.
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* @param data - character array to transmit.
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* @param length - size of the data array.
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*/
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uint32_t uart_length_send(serial_t* s, uint8_t data[], int length);
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/**
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* Send a single character.
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* @param s - serial structure.
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* @param data - single character to be sent.
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*/
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void uart_send(serial_t* s, uint8_t data);
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/**
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* Determine how much data is available
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* in the serial buffer.
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* @param s - serial structure.
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* @return number of characters available.
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*/
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int uart_available(serial_t* s);
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/**
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* Fetch one char from the serial buffer.
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* @param s - serial structure.
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* @return character. Null if empty.
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*/
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char uart_get(serial_t* s);
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/**
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* Fetch length of chars from the serial buffer.
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* @param s - serial structure.
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* @param buff - readback storage
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* @param len - length to get
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* @return length. zero if empty.
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*/
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int uart_length_get(serial_t* s, char* buff, int len, bool start_of_packet);
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uint16_t uart_get_hdlc_packet(serial_t* s, uint8_t *buff, uint16_t buff_len);
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/**
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* Fetch one char from the serial buffer.
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* Blocks until data becomes available.
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* @param s - serial structure.
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* @return character.
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*/
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char uart_blocking_get(serial_t* s);
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/**
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* Clear the serial buffer.
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* @param s - serial structure.
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*/
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void uart_clear(serial_t* s);
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/**
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* Close the serial port.
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* @param s - serial structure.
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* @return value of close().
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*/
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int uart_close(serial_t* s);
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/**
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* Deinitializes the UART
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* @param s - serial structure.
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*/
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void uart_deinit(serial_t* s);
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#ifdef __cplusplus
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}
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#endif
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#endif //LIB_UART_H
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