FreeCalypso > hg > freecalypso-tools

annotate rvinterf/asyncshell/tchplay.c @ 1010:1d144553a5d0 default tip

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CHANGES: fc-host-tools-r21 about to be released
author Mychaela Falconia <falcon@freecalypso.org>
date Tue, 12 Dec 2023 07:45:56 +0000
parents 971906d7763d
children
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1 /*
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2 * TCH uplink play-from-file functionality
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3 */
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4
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5 #include <sys/types.h>
4
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6 #include <ctype.h>
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7 #include <stdio.h>
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8 #include <string.h>
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9 #include <strings.h>
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10 #include <stdlib.h>
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11 #include "pktmux.h"
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12 #include "tch_feature.h"
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13
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14 extern u_char rvi_msg[];
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15 extern int rvi_msg_len;
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16
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17 extern void async_msg_output();
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18
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19 static FILE *play_file;
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20 static int queued_frames;
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22 #define QUEUE_LIMIT 3
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23
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24 static void
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25 sync_msgout(msg)
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26 char *msg;
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27 {
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28 printf("%s\n", msg);
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29 }
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30
4
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31 static
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32 decode_hex_digit(ch)
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33 {
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34 if (isdigit(ch))
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35 return(ch - '0');
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36 else if (isupper(ch))
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37 return(ch - 'A' + 10);
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38 else
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39 return(ch - 'a' + 10);
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40 }
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41
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42 static
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43 decode_hex_line(line, bytes)
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44 char *line;
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45 u_char *bytes;
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46 {
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47 int i;
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48
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49 for (i = 0; i < 33; i++) {
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50 if (!isxdigit(line[0]) || !isxdigit(line[1]))
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51 return(-1);
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52 bytes[i] = (decode_hex_digit(line[0]) << 4) |
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53 decode_hex_digit(line[1]);
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54 line += 2;
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55 }
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56 for (; *line; line++)
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57 if (!isspace(*line))
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58 return(-1);
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59 return(0);
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60 }
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61
0
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62 static void
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63 fill_uplink(msgout)
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64 void (*msgout)();
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65 {
4
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66 char line[80];
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67 u_char sendpkt[35];
0
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68 int cc;
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69
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70 sendpkt[0] = RVT_TCH_HEADER;
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71 sendpkt[1] = TCH_ULBITS_REQ;
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72 while (queued_frames < QUEUE_LIMIT) {
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73 if (!fgets(line, sizeof line, play_file)) {
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74 msgout("TCH UL: file play finished");
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75 fclose(play_file);
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76 play_file = 0;
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77 return;
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78 }
4
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79 if (decode_hex_line(line, sendpkt + 2) < 0) {
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80 msgout("TCH UL: bad file input, play aborted");
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81 fclose(play_file);
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82 play_file = 0;
0
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83 return;
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84 }
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85 send_pkt_to_target(sendpkt, 35);
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86 queued_frames++;
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87 }
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88 }
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89
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90 void
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91 tch_ulbits_conf()
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92 {
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93 if (queued_frames > 0)
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94 queued_frames--;
4
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95 if (play_file)
0
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96 fill_uplink(async_msg_output);
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97 }
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98
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99 static void
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100 cmd_tch_play_start(filename)
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101 char *filename;
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102 {
4
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103 if (play_file) {
0
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104 printf("error: tch play session already in progress\n");
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105 return;
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106 }
4
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107 play_file = fopen(filename, "r");
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108 if (!play_file) {
0
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109 perror(filename);
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110 return;
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111 }
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112 printf("Starting TCH UL play from file\n");
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113 tch_rx_control(1);
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114 fill_uplink(sync_msgout);
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115 }
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116
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117 static void
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118 cmd_tch_play_stop()
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119 {
4
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120 if (!play_file) {
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121 printf("error: no tch play session in progress\n");
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122 return;
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123 }
4
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Mychaela Falconia <falcon@freecalypso.org>
parents: 0
diff changeset
124 fclose(play_file);
971906d7763d fc-shell tch commands: changed to raw hex file format
Mychaela Falconia <falcon@freecalypso.org>
parents: 0
diff changeset
125 play_file = 0;
0
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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126 printf("TCH UL play from file terminated\n");
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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127 }
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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128
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
129 void
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
130 cmd_tch_play(argc, argv)
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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131 char **argv;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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132 {
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
133 if (argc < 2) {
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
134 printf("error: too few arguments\n");
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
135 return;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
136 }
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
137 if (strcmp(argv[1], "stop"))
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
138 cmd_tch_play_start(argv[1]);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
139 else
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
140 cmd_tch_play_stop();
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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141 }
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
142
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
143 void
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
144 show_tch_play_status()
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
145 {
e7502631a0f9 initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
146 printf("TCH UL play from file: %s\n",
4
971906d7763d fc-shell tch commands: changed to raw hex file format
Mychaela Falconia <falcon@freecalypso.org>
parents: 0
diff changeset
147 play_file ? "RUNNING" : "not running");
0
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
148 printf("Outstanding UL frames: %d\n", queued_frames);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
149 }