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annotate libgsmhr1/gen-dhf-pack.c @ 556:18aca50d68df default tip

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doc/Calypso-TCH-downlink: update for FR1 BFI-with-data
author Mychaela Falconia <falcon@freecalypso.org>
date Fri, 11 Oct 2024 01:54:00 +0000
parents a5d61331b675
children
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a5d61331b675 libgsmhr1: generate packed version of DHF
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1 /*
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2 * This helper program is built and executed during libgsmhr1 compilation
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3 * process. It converts the spec-fixed decoder homing frame (DHF)
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4 * from array-of-parameters form into the packed format of TS 101 318.
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5 */
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6
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7 #include <stdio.h>
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8 #include <stdint.h>
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9 #include <stdlib.h>
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10 #include "tw_gsmhr.h"
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11
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12 static void emit_frame_body(const uint8_t *frame)
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13 {
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14 int i;
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15
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16 for (i = 0; i < GSMHR_FRAME_LEN_RPF; i++) {
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17 if (i == 0 || i == 7)
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18 putchar('\t');
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19 else
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20 putchar(' ');
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21 printf("0x%02X,", frame[i]);
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22 if (i == 6 || i == 13)
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23 putchar('\n');
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24 }
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25 }
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26
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27 int main(int argc, char **argv)
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28 {
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29 uint8_t frame[GSMHR_FRAME_LEN_RPF];
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30
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31 gsmhr_pack_ts101318(gsmhr_dhf_params, frame);
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32
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33 puts("/* This C module is auto-generated - do not edit! */");
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34 putchar('\n');
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35 puts("#include <stdint.h>");
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36 puts("#include \"tw_gsmhr.h\"");
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37 putchar('\n');
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38 puts("const uint8_t gsmhr_dhf_ts101318[GSMHR_FRAME_LEN_RPF] = {");
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39 emit_frame_body(frame);
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40 puts("};");
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41 exit(0);
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42 }