FreeCalypso > hg > fc-tourmaline
annotate src/g23m-fad/t30/t30_bcss.c @ 275:79cfefc1e2b4
audio mode load: gracefully handle mode files of wrong AEC version
Unfortunately our change of enabling L1_NEW_AEC (which is necessary
in order to bring our Calypso ARM fw into match with the underlying
DSP reality) brings along a change in the audio mode file binary
format and file size - all those new tunable AEC parameters do need
to be stored somewhere, after all. But we already have existing
mode files in the old format, and setting AEC config to garbage when
loading old audio modes (which is what would happen without the
present change) is not an appealing proposition.
The solution implemented in the present change is as follows: the
audio mode loading code checks the file size, and if it differs
from the active version of T_AUDIO_MODE, the T_AUDIO_AEC_CFG structure
is cleared - set to the default (disabled AEC) for the compiled type
of AEC. We got lucky in that this varying T_AUDIO_AEC_CFG structure
sits at the end of T_AUDIO_MODE!
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Fri, 30 Jul 2021 02:55:48 +0000 |
parents | fa8dc04885d8 |
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rev | line source |
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1
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1 /* |
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2 +----------------------------------------------------------------------------- |
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3 | Project : GSM-F&D (8411) |
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4 | Modul : t30_bcss |
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5 +----------------------------------------------------------------------------- |
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6 | Copyright 2002 Texas Instruments Berlin, AG |
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7 | All rights reserved. |
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8 | |
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9 | This file is confidential and a trade secret of Texas |
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10 | Instruments Berlin, AG |
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11 | The receipt of or possession of this file does not convey |
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12 | any rights to reproduce or disclose its contents or to |
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13 | manufacture, use, or sell anything it may describe, in |
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14 | whole, or in part, without the specific written consent of |
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15 | Texas Instruments Berlin, AG. |
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16 +----------------------------------------------------------------------------- |
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17 | Purpose : This Modul defines the functions for processing |
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18 | of incomming signals for the component T30 |
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19 | of the mobile station |
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20 +----------------------------------------------------------------------------- |
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21 */ |
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22 |
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23 #ifndef T30_BCSS_C |
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24 #define T30_BCSS_C |
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25 #endif |
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26 |
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27 #define ENTITY_T30 |
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28 |
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29 /*==== INCLUDES ===================================================*/ |
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30 |
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31 #include <string.h> |
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32 #include <stdlib.h> |
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33 #include <stddef.h> |
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34 #include "typedefs.h" |
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35 #include "pcm.h" |
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36 #include "vsi.h" |
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37 #include "macdef.h" |
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38 #include "pconst.cdg" |
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39 #include "mconst.cdg" |
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40 #include "message.h" |
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41 #include "ccdapi.h" |
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42 #include "custom.h" |
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43 #include "gsm.h" |
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44 #include "prim.h" |
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45 #include "cnf_t30.h" |
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46 #include "mon_t30.h" |
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47 #include "pei.h" |
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48 #include "tok.h" |
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49 #include "dti.h" /* functionality of the dti library */ |
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50 #include "t30.h" |
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51 |
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52 /*==== CONST =======================================================*/ |
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53 |
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54 /*==== TYPES =======================================================*/ |
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55 |
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56 /*==== VAR EXPORT ==================================================*/ |
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57 |
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58 /*==== VAR LOCAL ===================================================*/ |
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59 |
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60 /*==== FUNCTIONS ===================================================*/ |
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61 |
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62 /* |
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63 +--------------------------------------------------------------------+ |
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64 | PROJECT : GSM-F&D (8411) MODULE : T30_BCSF | |
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65 | STATE : code ROUTINE : bcs_encode | |
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66 +--------------------------------------------------------------------+ |
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67 |
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68 PURPOSE : This function encodes an HDLC frame. |
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69 */ |
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70 |
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71 LOCAL UBYTE bcs_encode(void) |
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72 { |
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73 SHORT ret; |
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74 T_sdu *BCI_stream = (T_sdu*)t30_data->BCI_stream; |
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75 |
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76 BCI_stream->o_buf = 16; |
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77 BCI_stream->l_buf = BIT_STREAM_LEN_BYT * 8; |
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78 |
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79 ret = ccd_codeMsg(CCDENT_T30, UPLINK, (T_MSGBUF*)BCI_stream, _decodedMsg, HDLC_ADDR); |
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80 |
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81 if (ret EQ ccdError) |
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82 { |
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83 TRACE_EVENT ("ERROR: ccd_encode") ; |
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84 } |
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85 |
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86 #ifdef _SIMULATION_ /* show contents of buffer */ |
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87 if (t30_data->test_mode & TST_BUF) |
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88 { |
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89 if (ret EQ ccdOK) |
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90 { |
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91 ker_debug("ccd_encode", &BCI_stream->buf[3], (USHORT)(BCI_stream->l_buf >> 3)); |
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92 } |
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93 } |
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94 #endif |
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95 |
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96 return ((ret EQ ccdError) ? CCD_ERR : CCD_OK); |
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97 } |
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98 |
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99 /* |
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100 +--------------------------------------------------------------------+ |
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101 | PROJECT : GSM-F&D (8411) MODULE : T30_BCSS | |
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102 | STATE : code ROUTINE : sig_ker_bcs_bdat_req| |
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103 +--------------------------------------------------------------------+ |
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104 |
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105 PURPOSE : Process signal BDAT_REQ received from process KER. |
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106 The received bcs_data is encoded and collected. |
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107 */ |
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108 |
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109 GLOBAL void sig_ker_bcs_bdat_req (UBYTE final) |
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110 { |
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111 T_FAD_DATA_REQ *fad_data_req_fin; |
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112 |
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113 TRACE_FUNCTION ("sig_ker_bcs_bdat_req()"); |
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114 |
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115 if (t30_data->fad_data_req EQ NULL) |
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116 { |
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117 PALLOC_SDU (fad_data_req, FAD_DATA_REQ, BCS_FRM_SIZE_BITS); |
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118 memset (fad_data_req, 0, sizeof (T_FAD_DATA_REQ)); |
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119 t30_data->fad_data_req = fad_data_req; |
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120 t30_data->stuff_bits = 8; |
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121 } |
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122 else |
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123 bcs_bcs_encode(CTL_C0, FINAL_NO); |
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124 |
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125 switch (bcs_encode()) |
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126 { |
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127 case CCD_OK: |
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128 if (!final) |
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129 return; |
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130 |
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131 bcs_bcs_encode (CTL_C8, FINAL_YES); |
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132 fad_data_req_fin = t30_data->fad_data_req; |
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133 t30_data->fad_data_req = NULL; |
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134 fad_data_req_fin->final = TRUE; |
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135 fad_data_req_fin->trans_rate = R_BCS; |
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136 sig_bcs_mux_bcs_req(fad_data_req_fin); |
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137 break; |
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138 |
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139 case CCD_ERR: |
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140 PFREE (t30_data->fad_data_req); |
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141 t30_data->fad_data_req = NULL; |
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142 snd_error_ind(ERR_CCD_ENC); |
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143 break; |
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144 } |
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145 } |
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146 |
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147 /* |
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148 +--------------------------------------------------------------------+ |
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149 | PROJECT : GSM-F&D (8411) MODULE : T30_BCSS | |
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150 | STATE : code ROUTINE : sig_mux_bcs_bcs_ind | |
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151 +--------------------------------------------------------------------+ |
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152 |
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153 PURPOSE : Process signal BCS_IND received from process MUX. |
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154 The received bcs_data is collected, destuffed and |
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155 decoded. The decoded data is sent to the kernel. |
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156 */ |
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157 |
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158 GLOBAL void sig_mux_bcs_bcs_ind (T_FAD_DATA_IND *fad_data_ind) |
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159 { |
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160 TRACE_FUNCTION ("sig_mux_bcs_bcs_ind()"); |
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161 |
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162 switch (bcs_fill_bcs_frm(fad_data_ind)) |
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163 { |
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164 case BCS_FRM_FILLING: |
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165 return; |
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166 |
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167 case BCS_FRM_FILLED: |
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168 bcs_bcs_decode(); |
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169 break; |
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170 |
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171 case BCS_FRM_FULL: |
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172 sig_bcs_ker_err_ind(ERR_BUF_FULL); |
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173 break; |
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174 } |
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175 |
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176 memset (t30_data->bcs_frm, 0, BCS_FRM_SIZE); |
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177 } |
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178 |
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179 |