FreeCalypso > hg > freecalypso-tools

annotate libserial-orig/baudtab.c @ 407:19e5a3e2f9c0

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fcup-settime: moved time() retrieval a little closer to the output A fundamental problem with all simple time transfer tools is that there is always some delay between the time retrieval on the source system and that transmitted time being set on the destination, and the resulting time on the destination system is off by that delay amount. This delay cannot be fully eliminated when working in a simple environment like ours, but we should make our best effort to minimize it. In the present case, moving the atinterf_init() call before the time() retrieval should make a teensy-tiny improvement.
author Mychaela Falconia <falcon@freecalypso.org>
date Sat, 11 Aug 2018 21:52:17 +0000
parents cb1ba53a1106
children 39b39b546824
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248
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1 /*
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2 * This module contains the table of baud rates supported
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3 * by this implementation of FreeCalypso libserial.
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4 */
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5
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6 #include <stdio.h>
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7 #include <stdlib.h>
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8 #include <string.h>
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9 #include <strings.h>
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10 #include <termios.h>
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11 #include "baudrate.h"
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12
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13 struct baudrate baud_rate_table[] = {
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14 /* the first listed rate will be our default */
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15 {"115200", B115200, 0},
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16 {"57600", B57600, 1},
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17 {"38400", B38400, 2},
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18 {"19200", B19200, 4},
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19 /*
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20 * Non-standard high baud rates remapped by CP2102 EEPROM programming
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21 * or by a hacky patch to the ftdi_sio Linux kernel driver to work
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22 * with FTDI adapters.
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23 */
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24 {"812500", B921600, -1},
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25 {"406250", B460800, -1},
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26 {"203125", B230400, -1},
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27 /* table search terminator */
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28 {NULL, B0, -1},
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29 };
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30
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31 struct baudrate *
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32 find_baudrate_by_name(srch_name)
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33 char *srch_name;
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34 {
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35 struct baudrate *br;
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36
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37 for (br = baud_rate_table; br->name; br++)
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38 if (!strcmp(br->name, srch_name))
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39 break;
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40 if (br->name)
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41 return(br);
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42 else {
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43 fprintf(stderr, "error: baud rate \"%s\" not known\n",
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44 srch_name);
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45 return(NULL);
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46 }
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47 }