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5
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1 /*
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2 * SpanDSP - a series of DSP components for telephony
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3 *
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4 * v42_tests.c
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5 *
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6 * Written by Steve Underwood <steveu@coppice.org>
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7 *
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8 * Copyright (C) 2004 Steve Underwood
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9 *
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10 * All rights reserved.
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11 *
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12 * This program is free software; you can redistribute it and/or modify
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13 * it under the terms of the GNU General Public License version 2, as
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14 * published by the Free Software Foundation.
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15 *
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16 * This program is distributed in the hope that it will be useful,
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17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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19 * GNU General Public License for more details.
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20 *
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21 * You should have received a copy of the GNU General Public License
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22 * along with this program; if not, write to the Free Software
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23 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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24 *
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25 * $Id: v42_tests.c,v 1.19 2006/11/19 14:07:28 steveu Exp $
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26 */
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27
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28 /* THIS IS A WORK IN PROGRESS. IT IS NOT FINISHED. */
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29
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30 /*! \page v42_tests_page V.42 tests
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31 \section v42_tests_page_sec_1 What does it do?
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32 These tests connect two instances of V.42 back to back. V.42 frames are
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33 then exchanged between them.
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34 */
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35
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36 #ifdef HAVE_CONFIG_H
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37 #include <config.h>
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38 #endif
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39
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40 #include <stdio.h>
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41 #include <inttypes.h>
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42 #include <stdlib.h>
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43 #include <string.h>
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44 #if defined(HAVE_TGMATH_H)
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45 #include <tgmath.h>
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46 #endif
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47 #if defined(HAVE_MATH_H)
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48 #include <math.h>
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49 #endif
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50 #include <assert.h>
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51 #include <tiffio.h>
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52
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53 #include "spandsp.h"
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54
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55 v42_state_t caller;
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56 v42_state_t answerer;
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57
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58 int rx_next[3] = {0};
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59 int tx_next[3] = {0};
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60
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61 static void v42_status(void *user_data, int status)
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62 {
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63 int x;
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64
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65 x = (intptr_t) user_data;
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66 printf("%d: Status is '%s' (%d)\n", x, lapm_status_to_str(status), status);
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67 //if (status == LAPM_DATA)
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68 // lapm_tx_iframe((x == 1) ? &caller.lapm : &answerer.lapm, "ABCDEFGHIJ", 10, 1);
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69 }
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70
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71 static void v42_frames(void *user_data, const uint8_t *msg, int len)
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72 {
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73 int i;
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74 int x;
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75
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76 x = (intptr_t) user_data;
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77 for (i = 0; i < len; i++)
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78 {
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79 if (msg[i] != (rx_next[x] & 0xFF))
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80 printf("%d: Mismatch 0x%02X 0x%02X\n", x, msg[i], rx_next[x] & 0xFF);
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81 rx_next[x]++;
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82 }
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83 printf("%d: Got frame len %d\n", x, len);
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84 }
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85
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86 int main(int argc, char *argv[])
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87 {
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88 int i;
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89 int bit;
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90 uint8_t buf[1024];
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91
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92 v42_init(&caller, TRUE, TRUE, v42_frames, (void *) 1);
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93 v42_init(&answerer, FALSE, TRUE, v42_frames, (void *) 2);
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94 v42_set_status_callback(&caller, v42_status, (void *) 1);
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95 v42_set_status_callback(&answerer, v42_status, (void *) 2);
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96 span_log_set_level(&caller.logging, SPAN_LOG_SHOW_SEVERITY | SPAN_LOG_SHOW_PROTOCOL | SPAN_LOG_FLOW);
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97 span_log_set_tag(&caller.logging, "caller");
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98 span_log_set_level(&caller.lapm.logging, SPAN_LOG_SHOW_SEVERITY | SPAN_LOG_SHOW_PROTOCOL | SPAN_LOG_FLOW);
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99 span_log_set_tag(&caller.lapm.logging, "caller");
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100 span_log_set_level(&answerer.logging, SPAN_LOG_SHOW_SEVERITY | SPAN_LOG_SHOW_PROTOCOL | SPAN_LOG_FLOW);
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101 span_log_set_tag(&answerer.logging, "answerer");
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102 span_log_set_level(&answerer.lapm.logging, SPAN_LOG_SHOW_SEVERITY | SPAN_LOG_SHOW_PROTOCOL | SPAN_LOG_FLOW);
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103 span_log_set_tag(&answerer.lapm.logging, "answerer");
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104 for (i = 0; i < 100000; i++)
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105 {
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106 bit = v42_tx_bit(&caller);
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107 v42_rx_bit(&answerer, bit);
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108 bit = v42_tx_bit(&answerer);
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109 if (i%10000 == 0)
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110 bit ^= 1;
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111 v42_rx_bit(&caller, bit);
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112 span_schedule_update(&caller.lapm.sched, 4);
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113 span_schedule_update(&answerer.lapm.sched, 4);
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114 buf[0] = tx_next[1];
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115 if (lapm_tx(&caller.lapm, buf, 1) == 1)
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116 tx_next[1]++;
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117 buf[0] = tx_next[2];
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118 if (lapm_tx(&answerer.lapm, buf, 1) == 1)
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119 tx_next[2]++;
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120 }
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121 return 0;
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122 }
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123 /*- End of function --------------------------------------------------------*/
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124 /*- End of file ------------------------------------------------------------*/
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