112 lines
2.5 KiB
C
112 lines
2.5 KiB
C
/*
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* This file is part of the sigrok project.
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*
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* Copyright (C) 2010 Bert Vermeulen <bert@biot.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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#include <glob.h>
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#include <string.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <termios.h>
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#include <stdlib.h>
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#include <glib.h>
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#include <sigrok.h>
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char *serial_port_glob[] = {
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/* Linux */
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"/dev/ttyS*",
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"/dev/ttyUSB*",
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"/dev/ttyACM*",
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/* MacOS X */
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"/dev/ttys*",
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"/dev/tty.USB-*",
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"/dev/tty.Modem-*",
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NULL,
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};
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GSList *list_serial_ports(void)
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{
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glob_t g;
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GSList *ports;
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unsigned int i, j;
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ports = NULL;
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for (i = 0; serial_port_glob[i]; i++) {
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if (!glob(serial_port_glob[i], 0, NULL, &g)) {
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for (j = 0; j < g.gl_pathc; j++)
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ports = g_slist_append(ports,
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strdup(g.gl_pathv[j]));
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globfree(&g);
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}
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}
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return ports;
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}
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int serial_open(const char *pathname, int flags)
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{
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return open(pathname, flags);
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}
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int serial_close(int fd)
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{
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return close(fd);
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}
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void *serial_backup_params(int fd)
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{
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struct termios *term;
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term = malloc(sizeof(struct termios));
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tcgetattr(fd, term);
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return term;
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}
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void serial_restore_params(int fd, void *backup)
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{
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tcsetattr(fd, TCSADRAIN, (struct termios *)backup);
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}
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/* flowcontrol 1 = rts/cts 2 = xon/xoff */
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int serial_set_params(int fd, int speed, int bits, int parity, int stopbits,
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int flowcontrol)
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{
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struct termios term;
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/* Only supporting what we need really, currently the OLS driver. */
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if (speed != 115200 || bits != 8 || parity != 0 || stopbits != 1
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|| flowcontrol != 2)
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return SIGROK_ERR;
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if (tcgetattr(fd, &term) < 0)
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return SIGROK_ERR;
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if (cfsetispeed(&term, B115200) < 0)
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return SIGROK_ERR;
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term.c_cflag &= ~CSIZE;
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term.c_cflag |= CS8;
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term.c_cflag &= ~CSTOPB;
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term.c_cflag |= IXON | IXOFF;
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term.c_iflag |= IGNPAR;
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if (tcsetattr(fd, TCSADRAIN, &term) < 0)
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return SIGROK_ERR;
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return SIGROK_OK;
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}
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