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60 lines
2.1 KiB
C
60 lines
2.1 KiB
C
/*
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* This file is part of the libmmpp project.
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* Copyright 2019 Edward V. Emelianov <edward.emelianoff@gmail.com>.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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#ifndef TTY_PROCS_H__
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#define TTY_PROCS_H__
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#include "common.h"
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#include <limits.h>
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#include <stdbool.h>
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#include <stdlib.h>
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#include <termios.h> // tcsetattr, baudrates
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// tty Rx static buffer
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#define TBUFLEN (1024)
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// read timeout (in seconds)
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#define TTYTIMEOUT (0.05)
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typedef struct {
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char *portname; // device filename (should be freed before structure freeing)
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int speed; // baudrate in human-readable format
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tcflag_t baudrate; // baudrate (B...)
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struct termios oldtty; // TTY flags for previous port settings
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struct termios tty; // TTY flags for current settings
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int comfd; // TTY file descriptor
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char *buf; // buffer for data read
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size_t bufsz; // size of buf
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size_t buflen; // length of data read into buf
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bool exclusive; // should device be exclusive opened
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} TTYdescr;
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int str2double(double *num, const char *str);
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double dtime();
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TTYdescr *new_tty(char *comdev, int speed, size_t bufsz);
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int tty_init(TTYdescr *descr);
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TTYdescr *tty_open(TTYdescr *d, bool exclusive);
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size_t read_tty(TTYdescr *d);
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int write_tty(int comfd, const char *buff, size_t length);
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void close_tty(TTYdescr **descr);
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int handshake();
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char *keyval(char *key, char *haystack);
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char *cpy2buf(char *string, size_t *l);
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#endif // TTY_PROCS_H__
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