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annotate uptools/libcoding/gsm7_decode_qstring.c @ 1014:961efadd530a default tip

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fc-shell TCH DL handler: add support for CSD modes TCH DL capture mechanism in FC Tourmaline firmware has been extended to support CSD modes in addition to speech - add the necessary support on the host tools side. It needs to be noted that this mechanism in its present state does NOT provide the debug utility value that was sought: as we learned only after the code was implemented, TI's DSP has a misfeature in that the buffer we are reading (a_dd_0[]) is zeroed out when the IDS block is enabled, i.e., we are reading all zeros and not the real DL bits we were after. But since the code has already been written, we are keeping it - perhaps we can do some tests with IDS disabled.
author Mychaela Falconia <falcon@freecalypso.org>
date Tue, 26 Nov 2024 06:27:43 +0000
parents f023a1c187a9
children
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799
f023a1c187a9 uptools/libcoding: import print_gsm7_string_to_file()
Mychaela Falconia <falcon@freecalypso.org>
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1 /*
f023a1c187a9 uptools/libcoding: import print_gsm7_string_to_file()
Mychaela Falconia <falcon@freecalypso.org>
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2 * This module implements a function for decoding GSM7 strings
f023a1c187a9 uptools/libcoding: import print_gsm7_string_to_file()
Mychaela Falconia <falcon@freecalypso.org>
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3 * to ASCII with output to a stdio file; it is an implementation
f023a1c187a9 uptools/libcoding: import print_gsm7_string_to_file()
Mychaela Falconia <falcon@freecalypso.org>
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4 * of lossless conversion per our SIM-data-formats spec
f023a1c187a9 uptools/libcoding: import print_gsm7_string_to_file()
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5 * in freecalypso-docs.
f023a1c187a9 uptools/libcoding: import print_gsm7_string_to_file()
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6 */
f023a1c187a9 uptools/libcoding: import print_gsm7_string_to_file()
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7
f023a1c187a9 uptools/libcoding: import print_gsm7_string_to_file()
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8 #include <sys/types.h>
f023a1c187a9 uptools/libcoding: import print_gsm7_string_to_file()
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9 #include <stdio.h>
f023a1c187a9 uptools/libcoding: import print_gsm7_string_to_file()
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10
f023a1c187a9 uptools/libcoding: import print_gsm7_string_to_file()
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11 static char basic_table[128] = {
f023a1c187a9 uptools/libcoding: import print_gsm7_string_to_file()
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12 '@', 0, '$', 0, 0, 0, 0, 0,
f023a1c187a9 uptools/libcoding: import print_gsm7_string_to_file()
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13 0, 0, 'n'|0x80, 0, 0, 'r'|0x80, 0, 0,
f023a1c187a9 uptools/libcoding: import print_gsm7_string_to_file()
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14 0, '_', 0, 0, 0, 0, 0, 0,
f023a1c187a9 uptools/libcoding: import print_gsm7_string_to_file()
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15 0, 0, 0, 0, 0, 0, 0, 0,
f023a1c187a9 uptools/libcoding: import print_gsm7_string_to_file()
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16 ' ', '!', '"'|0x80, '#', 0, '%', '&', 0x27,
f023a1c187a9 uptools/libcoding: import print_gsm7_string_to_file()
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17 '(', ')', '*', '+', ',', '-', '.', '/',
f023a1c187a9 uptools/libcoding: import print_gsm7_string_to_file()
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18 '0', '1', '2', '3', '4', '5', '6', '7',
f023a1c187a9 uptools/libcoding: import print_gsm7_string_to_file()
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19 '8', '9', ':', ';', '<', '=', '>', '?',
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20 0, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
f023a1c187a9 uptools/libcoding: import print_gsm7_string_to_file()
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21 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
f023a1c187a9 uptools/libcoding: import print_gsm7_string_to_file()
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22 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
f023a1c187a9 uptools/libcoding: import print_gsm7_string_to_file()
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23 'X', 'Y', 'Z', 0, 0, 0, 0, 0,
f023a1c187a9 uptools/libcoding: import print_gsm7_string_to_file()
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24 0, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
f023a1c187a9 uptools/libcoding: import print_gsm7_string_to_file()
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25 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
f023a1c187a9 uptools/libcoding: import print_gsm7_string_to_file()
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26 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
f023a1c187a9 uptools/libcoding: import print_gsm7_string_to_file()
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27 'x', 'y', 'z', 0, 0, 0, 0, 0
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28 };
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29
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30 static char escape_table[128] = {
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31 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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32 0, 0, 0, 0, '^', 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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33 0, 0, 0, 0, 0, 0, 0, 0, '{', '}', 0, 0, 0, 0, 0, '\\'|0x80,
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34 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, '[', '~', ']', 0,
f023a1c187a9 uptools/libcoding: import print_gsm7_string_to_file()
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35 '|', 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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36 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
f023a1c187a9 uptools/libcoding: import print_gsm7_string_to_file()
Mychaela Falconia <falcon@freecalypso.org>
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37 0, 0, 0, 0, 0,'E'|0x80,0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
f023a1c187a9 uptools/libcoding: import print_gsm7_string_to_file()
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38 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
f023a1c187a9 uptools/libcoding: import print_gsm7_string_to_file()
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39 };
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40
f023a1c187a9 uptools/libcoding: import print_gsm7_string_to_file()
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41 void
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42 print_gsm7_string_to_file(data, nbytes, outf)
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43 u_char *data;
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44 unsigned nbytes;
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45 FILE *outf;
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46 {
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47 u_char *dp, *endp;
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48 int b, c;
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49
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50 dp = data;
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51 endp = data + nbytes;
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52 putc('"', outf);
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53 while (dp < endp) {
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54 b = *dp++;
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55 if (b == 0x1B) {
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56 if (dp >= endp || *dp == 0x1B || *dp == '\n' ||
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57 *dp == '\r') {
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58 putc('\\', outf);
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59 putc('e', outf);
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60 continue;
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61 }
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62 b = *dp++;
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63 c = escape_table[b];
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64 if (!c) {
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65 fprintf(outf, "\\e\\%02X", b);
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66 continue;
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67 }
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68 } else {
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69 c = basic_table[b];
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70 if (!c) {
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71 fprintf(outf, "\\%02X", b);
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72 continue;
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73 }
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74 }
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75 if (c & 0x80) {
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76 putc('\\', outf);
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77 c &= 0x7F;
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78 }
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79 putc(c, outf);
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80 }
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81 putc('"', outf);
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82 }