FreeCalypso > hg > freecalypso-tools
annotate loadtools/labaud.c @ 79:49d2684805b1
buzplayer: melody buffer implemented
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Thu, 27 Oct 2016 04:18:38 +0000 |
parents | e7502631a0f9 |
children | 8c011177adb9 |
rev | line source |
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initial import from freecalypso-sw rev 1033:5ab737ac3ad7
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1 /* |
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2 * This module handles the switching of serial baud rates |
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3 * in coordination with loadagent. |
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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 <termios.h> |
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9 #include <unistd.h> |
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10 #include "baudrate.h" |
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11 |
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12 extern int target_fd; |
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13 extern struct baudrate *current_baud_rate; |
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14 extern struct baudrate *find_baudrate_by_name(); |
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15 |
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16 loadagent_switch_baud(newbr) |
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17 struct baudrate *newbr; |
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18 { |
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19 char *argv[3]; |
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20 static char U = 'U'; |
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21 |
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22 printf("Switching loadagent communication to %s baud\n", newbr->name); |
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23 argv[0] = "baud"; |
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24 argv[1] = newbr->name; |
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25 argv[2] = 0; |
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26 tpinterf_make_cmd(argv); |
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27 if (tpinterf_send_cmd() < 0) |
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28 return(-1); |
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29 switch_baud_rate(newbr); |
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30 usleep(150000); |
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31 write(target_fd, &U, 1); |
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32 return tpinterf_pass_output(1); |
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33 } |
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34 |
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35 cmd_baud(argc, argv) |
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36 char **argv; |
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37 { |
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38 struct baudrate *br; |
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39 |
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40 if (argc < 2) { |
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41 printf("Current baud rate is %s\n", current_baud_rate->name); |
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42 return(0); |
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43 } |
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44 br = find_baudrate_by_name(argv[1]); |
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45 if (!br) |
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46 return(-1); /* error msg already printed */ |
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47 return loadagent_switch_baud(br); |
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48 } |