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annotate sw/libserial/setbaud.c @ 39:a9e87abeeaa2

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doc/Cardem-plans: article written
author Mychaela Falconia <falcon@freecalypso.org>
date Wed, 30 Aug 2023 03:32:06 +0000
parents c4346cdc9641
children
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c4346cdc9641 sw/libserial: based on FC host tools version
Mychaela Falconia <falcon@freecalypso.org>
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1 /*
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2 * This module implements the termios/ioctl setting of the baud rate.
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3 */
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4
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5 #include <sys/types.h>
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6 #include <sys/ioctl.h>
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7 #include <asm/ioctls.h>
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8 #include <asm/termbits.h>
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9 #include <stdio.h>
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10 #include <stdlib.h>
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11 #include <unistd.h>
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12
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13 extern int target_fd;
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14
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15 set_serial_baudrate(br)
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16 unsigned br;
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17 {
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18 struct termios2 target_termios;
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19
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20 target_termios.c_iflag = IGNBRK;
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21 target_termios.c_oflag = 0;
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22 target_termios.c_cflag = BOTHER|CLOCAL|HUPCL|CREAD|CS8;
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23 target_termios.c_lflag = 0;
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24 target_termios.c_cc[VMIN] = 1;
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25 target_termios.c_cc[VTIME] = 0;
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26 target_termios.c_ispeed = br;
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27 target_termios.c_ospeed = br;
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28 if (ioctl(target_fd, TCSETSF2, &target_termios) < 0) {
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29 perror("TCSETSF2");
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30 exit(1);
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31 }
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32 return 0;
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33 }