FreeCalypso > hg > freecalypso-tools

annotate libserial-posix/setbaud.c @ 926:6a0aa8d36d06

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
rvinterf backslash escape: introduce libprint The new helper function library named libprint is meant to replace the badly misnamed libg23, and will soon contain functions for printing all of the same kinds of GPF TST packets that are now handled in libg23. However, we are also moving safe_print_trace() from libasync to this new library, and changing it to emit our new backslash escape format.
author Mychaela Falconia <falcon@freecalypso.org>
date Tue, 23 May 2023 03:47:46 +0000
parents fd7b447b99e3
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
248
cb1ba53a1106 beginning of factored-out libserial
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1 /*
cb1ba53a1106 beginning of factored-out libserial
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2 * This module implements the termios/ioctl setting of the baud rate.
cb1ba53a1106 beginning of factored-out libserial
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
3 */
cb1ba53a1106 beginning of factored-out libserial
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
4
cb1ba53a1106 beginning of factored-out libserial
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
5 #include <sys/types.h>
cb1ba53a1106 beginning of factored-out libserial
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
6 #include <sys/ioctl.h>
cb1ba53a1106 beginning of factored-out libserial
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
7 #include <termios.h>
cb1ba53a1106 beginning of factored-out libserial
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
8 #include <stdio.h>
cb1ba53a1106 beginning of factored-out libserial
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
9 #include <stdlib.h>
cb1ba53a1106 beginning of factored-out libserial
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
10 #include <unistd.h>
cb1ba53a1106 beginning of factored-out libserial
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
11 #include "baudrate.h"
cb1ba53a1106 beginning of factored-out libserial
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
12
cb1ba53a1106 beginning of factored-out libserial
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
13 extern int target_fd;
cb1ba53a1106 beginning of factored-out libserial
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
14
cb1ba53a1106 beginning of factored-out libserial
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
15 struct baudrate *current_baud_rate;
cb1ba53a1106 beginning of factored-out libserial
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
16
cb1ba53a1106 beginning of factored-out libserial
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
17 set_serial_baudrate(br)
cb1ba53a1106 beginning of factored-out libserial
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
18 struct baudrate *br;
cb1ba53a1106 beginning of factored-out libserial
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
19 {
cb1ba53a1106 beginning of factored-out libserial
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
20 struct termios target_termios;
cb1ba53a1106 beginning of factored-out libserial
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
21
cb1ba53a1106 beginning of factored-out libserial
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
22 target_termios.c_iflag = IGNBRK;
cb1ba53a1106 beginning of factored-out libserial
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
23 target_termios.c_oflag = 0;
cb1ba53a1106 beginning of factored-out libserial
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
24 target_termios.c_cflag = CLOCAL|HUPCL|CREAD|CS8;
cb1ba53a1106 beginning of factored-out libserial
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
25 target_termios.c_lflag = 0;
cb1ba53a1106 beginning of factored-out libserial
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
26 target_termios.c_cc[VMIN] = 1;
cb1ba53a1106 beginning of factored-out libserial
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
27 target_termios.c_cc[VTIME] = 0;
cb1ba53a1106 beginning of factored-out libserial
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
28 cfsetispeed(&target_termios, br->termios_code);
cb1ba53a1106 beginning of factored-out libserial
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
29 cfsetospeed(&target_termios, br->termios_code);
cb1ba53a1106 beginning of factored-out libserial
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
30 if (tcsetattr(target_fd, TCSAFLUSH, &target_termios) < 0) {
cb1ba53a1106 beginning of factored-out libserial
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
31 perror("tcsetattr");
cb1ba53a1106 beginning of factored-out libserial
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
32 exit(1);
cb1ba53a1106 beginning of factored-out libserial
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
33 }
cb1ba53a1106 beginning of factored-out libserial
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
34 current_baud_rate = br;
cb1ba53a1106 beginning of factored-out libserial
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
35 return 0;
cb1ba53a1106 beginning of factored-out libserial
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
36 }