FreeCalypso > hg > fc-rfcal-tools

annotate autocal/rxband.c @ 63:131abadbd74d

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doc/Rx-cal-theory written
author Mychaela Falconia <falcon@freecalypso.org>
date Sun, 28 May 2017 03:21:34 +0000
parents a98873b713c3
children 3f92d88fbb1c
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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1 /*
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parents:
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2 * This module contains the main() function for fc-rfcal-rxband.
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3 */
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4
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5 #include <stdio.h>
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6 #include <stdlib.h>
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7 #include <string.h>
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8 #include <strings.h>
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9 #include <rvinterf/l1tm.h>
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10 #include <rvinterf/exitcodes.h>
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11 #include "rxband.h"
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12 #include "rxcaldefs.h"
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13 #include "stdband.h"
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14
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15 struct rx_calchan_range rx_calchan_850[] = {
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16 {128, 138, 128},
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17 {139, 157, 148},
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18 {158, 178, 168},
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19 {179, 199, 189},
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20 {200, 217, 208},
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21 {218, 239, 228},
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22 {240, 251, 251}
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23 };
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24
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25 struct rx_calchan_range rx_calchan_900[] = {
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26 { 0, 10, 1},
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27 { 11, 30, 20},
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28 { 31, 51, 37},
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29 { 52, 71, 62},
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30 { 72, 90, 80},
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31 { 91, 112, 100},
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32 { 113, 124, 124},
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33 { 975, 991, 975},
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34 { 992, 1009, 1000},
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35 {1010, 1023, 1017}
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36 };
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37
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38 struct rx_calchan_range rx_calchan_1800[] = {
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39 {512, 548, 512},
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40 {549, 622, 585},
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41 {623, 680, 660},
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42 {681, 745, 698},
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43 {746, 812, 790},
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44 {813, 860, 835},
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45 {861, 885, 885}
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46 };
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47
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48 struct rx_calchan_range rx_calchan_1900[] = {
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49 {512, 548, 512},
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50 {549, 622, 585},
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51 {623, 680, 661},
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52 {681, 745, 700},
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53 {746, 795, 790},
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54 {796, 810, 805}
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55 };
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56
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57 struct rxcal_band rxcal_band_list[] = {
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58 {"850", RFPW_STD_BAND_850, 189, rx_calchan_850,
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59 sizeof(rx_calchan_850) / sizeof(struct rx_calchan_range)},
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60 {"900", RFPW_STD_BAND_900, 37, rx_calchan_900,
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61 sizeof(rx_calchan_900) / sizeof(struct rx_calchan_range)},
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62 {"1800", RFPW_STD_BAND_1800, 698, rx_calchan_1800,
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63 sizeof(rx_calchan_1800) / sizeof(struct rx_calchan_range)},
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64 {"1900", RFPW_STD_BAND_1900, 661, rx_calchan_1900,
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65 sizeof(rx_calchan_1900) / sizeof(struct rx_calchan_range)},
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66 {0, 0, 0, 0, 0}
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67 };
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68
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69 struct rxcal_band *rxcal_band;
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70 int Gmagic, rx_calchan_values[10];
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71
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72 finish_cmdline(argc, argv)
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73 char **argv;
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74 {
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75 extern int optind;
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76 struct rxcal_band *band;
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77
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78 if (argc - optind != 1) {
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79 fprintf(stderr, "usage: %s band\n", argv[0]);
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80 exit(ERROR_USAGE);
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81 }
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82 for (band = rxcal_band_list; band->name; band++)
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83 if (!strcmp(band->name, argv[optind]))
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84 break;
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85 if (!band->name) {
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86 fprintf(stderr, "error: \"%s\" is not a known band\n",
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87 argv[optind]);
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88 exit(ERROR_USAGE);
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89 }
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90 rxcal_band = band;
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91 return(0);
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92 }
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93
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94 prepare_rf_test_system()
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95 {
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96 char cmd[80];
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97
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98 printf("Preparing RF test system for %s MHz Rx calibration\n",
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99 rxcal_band->name);
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100 sprintf(cmd, "signal-gen-setup %s\n", rxcal_band->name);
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101 tsid_command(cmd);
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102 return(0);
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103 }
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104
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105 main(argc, argv)
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106 char **argv;
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107 {
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108 socket_pathname_options(argc, argv);
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109 finish_cmdline(argc, argv);
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110 connect_rvinterf_socket();
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111 connect_tsid_socket();
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112 setlinebuf(stdout); /* to allow logging with tee */
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113 prepare_rf_test_system();
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114
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115 printf("Putting the DUT into Test Mode\n");
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116 do_tms(1);
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117 do_rfpw(STD_BAND_FLAG, rxcal_band->rfpw_std_band);
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118 l1tm_setup_for_rxcal();
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119
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120 do_gmagic();
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121 do_rx_calchan();
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122 exit(0);
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123 }
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124
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125 do_gmagic()
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126 {
61
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127 int pm;
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128 char Gmagic_db[64];
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129
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130 printf("Calibrating GMagic\n");
57
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131 pm = rx_measure(rxcal_band->main_arfcn);
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132 Gmagic = pm - RXCAL_SIGGEN_LEVEL - RXCAL_AGC_DB * 2;
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133 halfdb_to_string(Gmagic, Gmagic_db);
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134 printf("GMagic=%d (%s dB)\n", Gmagic, Gmagic_db);
61
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135 upload_gmagic();
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136 return(0);
57
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137 }
62
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138
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139 do_rx_calchan()
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140 {
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141 unsigned n;
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142 int pm;
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143
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144 printf("Calibrating RSSI channel compensation\n");
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145 for (n = 0; n < rxcal_band->num_calchan_ranges; n++) {
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146 pm = rx_measure(rxcal_band->calchan_ranges[n].test_arfcn);
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147 rx_calchan_values[n] = RXCAL_SIGGEN_LEVEL - pm +
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148 RXCAL_AGC_DB * 2 + Gmagic;
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149 }
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150 for (n = 0; n < rxcal_band->num_calchan_ranges; n++)
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151 printf("ARFCN %u-%u: correction=%d\n",
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152 rxcal_band->calchan_ranges[n].lower_bound,
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153 rxcal_band->calchan_ranges[n].upper_bound,
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154 rx_calchan_values[n]);
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155 upload_rx_calchan();
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156 return(0);
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157 }