FreeCalypso > hg > fc-tourmaline
annotate src/g23m-fad/fad/fad_rcvf.c @ 138:a2a911a1ff36
mmiBlkLangDB.c: non-ASCII char fixes
literal non-ASCII characters in strings replaced with C octal escapes
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Sat, 14 Nov 2020 03:51:50 +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 : FAD_RCVF |
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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 procedures and functions for |
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18 | the component Fax Adaptation 3.45 of the mobile station |
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19 +----------------------------------------------------------------------------- |
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20 */ |
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21 |
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22 #ifndef FAD_RCVF_C |
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23 #define FAD_RCVF_C |
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24 #endif |
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25 |
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26 #define ENTITY_FAD |
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27 |
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28 /*==== INCLUDES ===================================================*/ |
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29 |
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30 #include <string.h> |
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31 #include "typedefs.h" |
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32 #include "vsi.h" |
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33 #include "macdef.h" |
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34 #include "pconst.cdg" |
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35 #include "custom.h" |
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36 #include "gsm.h" |
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37 #include "cnf_fad.h" |
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38 #include "mon_fad.h" |
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39 #include "prim.h" |
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40 #include "pei.h" |
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41 #include "tok.h" |
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42 #include "ccdapi.h" |
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43 #include "fad.h" |
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44 |
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45 /*==== CONST =======================================================*/ |
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46 |
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47 /*==== TYPES =======================================================*/ |
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48 |
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49 /*==== VAR EXPORT ==================================================*/ |
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50 |
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51 /*==== VAR LOCAL ===================================================*/ |
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52 |
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53 /*==== FUNCTIONS ===================================================*/ |
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54 |
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55 /* |
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56 +--------------------------------------------------------------------+ |
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57 | PROJECT : GSM-F&D (8411) MODULE : FAD_RCVF | |
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58 | STATE : code ROUTINE : rcv_init | |
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59 +--------------------------------------------------------------------+ |
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60 |
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61 PURPOSE : initialise the fad data for the rcv formatter process |
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62 |
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63 */ |
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64 |
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65 GLOBAL void rcv_init (void) |
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66 { |
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67 T_RCV *rcv = &fad_data->rcv; |
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68 |
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69 TRACE_FUNCTION ("rcv_init()"); |
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70 |
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71 INIT_STATE (RCV, SYNC_RCV); |
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72 INIT_STATE (RCVSUB, SUB_IDLE); |
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73 |
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74 rcv->data_in_rbm = FALSE; |
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75 rcv->preamble_pending = FALSE; |
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76 rcv->bcs_pending = TRUE; |
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77 rcv->FlagFound = 0; |
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78 rcv->train_flg = FALSE; /*???*/ |
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79 |
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80 rcv_ResetFormatter (); |
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81 } |
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82 |
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83 /* |
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84 +--------------------------------------------------------------------+ |
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85 | PROJECT : GSM-F&D (8411) MODULE : FAD_RCVF | |
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86 | STATE : code ROUTINE : rcv_ResetFormatter | |
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87 +--------------------------------------------------------------------+ |
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88 |
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89 PURPOSE : |
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90 |
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91 */ |
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92 |
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93 GLOBAL void rcv_ResetFormatter (void) |
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94 { |
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95 T_RCV *rcv = &fad_data->rcv; |
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96 |
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97 TRACE_FUNCTION ("rcv_ResetFormatter()"); |
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98 |
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99 SET_STATE (RCVSUB, SUB_IDLE); |
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100 |
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101 rcv->bytes_good = 0; |
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102 rcv->bytes_expect = 0; |
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103 rcv->bytes_rcvd = 0; |
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104 rcv->prim_ready = FALSE; |
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105 rcv->hdlc_len = 0; |
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106 rcv->bcs_data_len = 0; |
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107 rcv->data_bufpos = 0; |
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108 } |
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109 |
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110 /* |
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111 +--------------------------------------------------------------------+ |
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112 | PROJECT : GSM-F&D (8411) MODULE : FAD_RCVF | |
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113 | STATE : code ROUTINE : CheckBcsFrame | |
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114 +--------------------------------------------------------------------+ |
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115 |
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116 PURPOSE : get number of correct IDENT and data bytes (BCS data) |
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117 |
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118 */ |
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119 |
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120 LOCAL void CheckBcsFrame (UBYTE *ident_ratio, UBYTE *info_ratio, |
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121 UBYTE *bcs_data, UBYTE ident, |
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122 UBYTE info, USHORT bcs_len) |
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123 { |
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124 UBYTE i, pream_good = 0, ident_good = 0; |
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125 |
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126 TRACE_FUNCTION ("CheckBcsFrame()"); |
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127 |
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128 if (!bcs_len) |
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129 return; |
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130 |
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131 for (i = 0; i < bcs_len; bcs_data++, i++) |
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132 { |
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133 if (i & 0x01) |
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134 { |
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135 if (*bcs_data EQ info) |
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136 pream_good++; |
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137 } |
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138 else |
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139 { |
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140 if (*bcs_data EQ ident) |
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141 ident_good++; |
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142 } |
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143 } |
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144 bcs_len >>= 1; |
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145 |
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146 if (bcs_len) |
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147 { |
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148 *ident_ratio = (ident_good * 100) / bcs_len; |
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149 *info_ratio = (pream_good * 100) / bcs_len; |
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150 } |
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|
151 } |
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152 |
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|
153 /* |
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|
154 +--------------------------------------------------------------------+ |
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155 | PROJECT : GSM-F&D (8411) MODULE : FAD_RCVF | |
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156 | STATE : code ROUTINE : rcv_FrameType | |
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157 +--------------------------------------------------------------------+ |
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158 |
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159 PURPOSE : |
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160 |
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161 */ |
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162 |
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163 GLOBAL UBYTE rcv_FrameType(T_FD *pFD) |
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164 { |
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165 UBYTE *bcs_data, fr_type, len, ident_ratio, info_ratio; |
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166 |
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|
167 #ifdef _SIMULATION_ |
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168 TRACE_FUNCTION ("rcv_FrameType()"); |
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169 #endif |
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170 |
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171 fr_type = pFD->type; |
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172 len = pFD->len; |
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173 bcs_data = pFD->buf; |
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174 |
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175 switch (GET_STATE (RCV)) |
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|
176 { |
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|
177 case SYNC_RCV: |
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178 switch (fr_type) |
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|
179 { |
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|
180 case FR_STATUS: |
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181 CheckBcsFrame(&ident_ratio, &info_ratio, bcs_data, IDENT_BCS_REC, HDLC_FLAG, len); |
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182 if (ident_ratio < BCS_TOLERANCE) |
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183 return (FT_NONE); /* not a BCS frame */ |
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|
184 if (info_ratio >= BCS_TOLERANCE) |
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|
185 return (FT_PREAMBLE); |
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|
186 break; |
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|
187 |
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|
188 case FR_TRAIN: |
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|
189 CheckBcsFrame(&ident_ratio, &info_ratio, bcs_data, IDENT_MSG_REC, VAL_TRAIN, len); |
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|
190 if (ident_ratio >= TRAIN_TOLERANCE) |
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parents:
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|
191 break; /* STATUS-TRAIN frame */ |
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changeset
|
192 |
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|
193 CheckBcsFrame(&ident_ratio, &info_ratio, bcs_data, IDENT_MSG_TRA, VAL_TRAIN, len); |
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|
194 if (ident_ratio >= TRAIN_TOLERANCE) |
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|
195 return (FT_TRAIN_RESPONSE); /* response to TRAINING */ |
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|
196 |
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|
197 return (FT_NONE); |
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|
198 } |
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|
199 break; |
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|
200 |
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Mychaela Falconia <falcon@freecalypso.org>
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|
201 case PREAM_RCV: |
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|
202 switch (fr_type) |
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|
203 { |
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Mychaela Falconia <falcon@freecalypso.org>
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|
204 case FR_STATUS: |
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Mychaela Falconia <falcon@freecalypso.org>
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|
205 CheckBcsFrame(&ident_ratio, &info_ratio, bcs_data, IDENT_BCS_REC, VAL_TCF, len); |
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|
206 if (ident_ratio < BCS_TOLERANCE) |
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diff
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|
207 return (FT_NONE); /* not a BCS frame */ |
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|
208 if (info_ratio >= BCS_TOLERANCE) |
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|
209 return (FT_PREAMBLE); |
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Mychaela Falconia <falcon@freecalypso.org>
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diff
changeset
|
210 break; |
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Mychaela Falconia <falcon@freecalypso.org>
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diff
changeset
|
211 |
fa8dc04885d8
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Mychaela Falconia <falcon@freecalypso.org>
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diff
changeset
|
212 default: |
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Mychaela Falconia <falcon@freecalypso.org>
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|
213 return (FT_NONE); |
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Mychaela Falconia <falcon@freecalypso.org>
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diff
changeset
|
214 } |
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Mychaela Falconia <falcon@freecalypso.org>
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diff
changeset
|
215 break; |
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Mychaela Falconia <falcon@freecalypso.org>
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diff
changeset
|
216 |
fa8dc04885d8
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Mychaela Falconia <falcon@freecalypso.org>
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diff
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|
217 case BCS_RCV: |
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Mychaela Falconia <falcon@freecalypso.org>
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|
218 if (fr_type EQ FR_STATUS) |
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Mychaela Falconia <falcon@freecalypso.org>
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diff
changeset
|
219 { |
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Mychaela Falconia <falcon@freecalypso.org>
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|
220 CheckBcsFrame(&ident_ratio, &info_ratio, bcs_data, IDENT_BCS_REC, HDLC_FLAG, len); |
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|
221 if (ident_ratio < BCS_TOLERANCE) |
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parents:
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|
222 return (FT_NONE); /* not a BCS frame */ |
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Mychaela Falconia <falcon@freecalypso.org>
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diff
changeset
|
223 |
fa8dc04885d8
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Mychaela Falconia <falcon@freecalypso.org>
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diff
changeset
|
224 if (GET_STATE (RCVSUB) EQ SUB_PREAMBLE) |
fa8dc04885d8
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
225 { |
fa8dc04885d8
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Mychaela Falconia <falcon@freecalypso.org>
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diff
changeset
|
226 if (info_ratio EQ 100) |
fa8dc04885d8
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|
227 return (FT_NONE); /* still receiving PREAMBLE */ |
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diff
changeset
|
228 |
fa8dc04885d8
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Mychaela Falconia <falcon@freecalypso.org>
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|
229 SET_STATE (RCVSUB, SUB_DATA); |
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changeset
|
230 } |
fa8dc04885d8
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Mychaela Falconia <falcon@freecalypso.org>
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diff
changeset
|
231 } |
fa8dc04885d8
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Mychaela Falconia <falcon@freecalypso.org>
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diff
changeset
|
232 break; |
fa8dc04885d8
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Mychaela Falconia <falcon@freecalypso.org>
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diff
changeset
|
233 |
fa8dc04885d8
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Mychaela Falconia <falcon@freecalypso.org>
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diff
changeset
|
234 default: |
fa8dc04885d8
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
235 break; |
fa8dc04885d8
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Mychaela Falconia <falcon@freecalypso.org>
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diff
changeset
|
236 } |
fa8dc04885d8
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Mychaela Falconia <falcon@freecalypso.org>
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diff
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|
237 return (fr_type); |
fa8dc04885d8
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Mychaela Falconia <falcon@freecalypso.org>
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diff
changeset
|
238 } |
fa8dc04885d8
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Mychaela Falconia <falcon@freecalypso.org>
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diff
changeset
|
239 |
fa8dc04885d8
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
240 /* |
fa8dc04885d8
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
241 +--------------------------------------------------------------------+ |
fa8dc04885d8
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Mychaela Falconia <falcon@freecalypso.org>
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|
242 | PROJECT : GSM-F&D (8411) MODULE : FAD_RCVF | |
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243 | STATE : code ROUTINE : rcv_SetHdlcFrame | |
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244 +--------------------------------------------------------------------+ |
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245 |
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246 PURPOSE : set BCS data as HDLC frame for T30/ACI |
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247 |
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248 */ |
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249 |
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250 GLOBAL void rcv_SetHdlcFrame (T_FD *pFD, UBYTE *hdlc_data, USHORT *hdlc_len) |
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251 { |
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252 UBYTE *bcs_data = pFD->buf; |
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253 USHORT flag_found = 0, i, k; |
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254 |
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255 #define HDLC_MAX 2 |
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256 |
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257 #ifdef _SIMULATION_ |
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258 TRACE_FUNCTION ("rcv_SetHdlcFrame()"); |
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259 #endif |
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260 |
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261 for (i = 0; i < pFD->len; i++, bcs_data++) |
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262 { |
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263 if (i & 0x0001) |
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264 { |
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265 *hdlc_data++ = *bcs_data; |
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266 (*hdlc_len)++; |
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267 |
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268 /* |
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269 * if preamble is disturbed |
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270 * discard erroneous HDLC data |
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271 */ |
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272 if (*hdlc_len > HDLC_MAX) |
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273 { |
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274 /* |
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275 * check last HDLC data; allow trailing HDLC flags |
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276 */ |
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277 for (k = *hdlc_len - HDLC_MAX; k < *hdlc_len; k++) |
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278 { |
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279 if (fad_data->rcv.hdlc[k] EQ HDLC_FLAG) |
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280 { |
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281 flag_found++; |
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282 TRACE_EVENT("HDLC flags during SUB_DATA found"); |
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283 } |
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284 if (flag_found EQ HDLC_MAX) |
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285 { |
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286 TRACE_EVENT("HDLC buffer cleared again"); |
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287 hdlc_data = fad_data->rcv.hdlc; |
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288 *hdlc_len = 0; |
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289 } |
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290 } |
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291 } |
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292 } |
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293 } |
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294 } |
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295 |
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296 /* |
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297 +--------------------------------------------------------------------+ |
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298 | PROJECT : GSM-F&D (8411) MODULE : FAD_RCVF | |
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299 | STATE : code ROUTINE : rcv_SetErrorRatio | |
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300 +--------------------------------------------------------------------+ |
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301 |
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302 PURPOSE : calculate no. of correctly received TCF bytes |
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303 |
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304 */ |
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305 |
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306 GLOBAL void rcv_SetErrorRatio(T_FD *pFD) |
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307 { |
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308 void t30_ker_debug(CHAR *header, UBYTE *buf, USHORT len); |
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309 |
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310 UBYTE *buf = pFD->buf, i; |
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311 |
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312 TRACE_FUNCTION ("rcv_SetErrorRatio()"); |
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313 |
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314 #if defined TRACE_FAD_DL_TCF || defined _SIMULATION_ |
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315 t30_ker_debug("TCF", buf, pFD->len); |
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316 #endif |
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317 |
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318 for (i = 0; i < pFD->len; i++, buf++) |
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319 { |
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320 if (*buf EQ VAL_TCF) |
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321 { |
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322 fad_data->rcv.bytes_good++; |
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323 } |
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324 } |
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325 } |
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326 |
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327 |
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328 /* |
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329 +--------------------------------------------------------------------+ |
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330 | PROJECT : GSM-F&D (8411) MODULE : FAD_RCVF | |
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331 | STATE : code ROUTINE : rcv_StoreMsgData | |
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332 +--------------------------------------------------------------------+ |
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333 |
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334 PURPOSE : pass SDU to Receive Buffer Manager (RBM) |
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335 |
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336 */ |
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337 |
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338 GLOBAL BOOL rcv_StoreMsgData (T_FD *pFD, BOOL *primAvail) |
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339 { |
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340 TRACE_FUNCTION ("rcv_StoreMsgData()"); |
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341 |
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342 return rbm_store_frames(pFD, primAvail); |
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343 } |
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344 |
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345 /* |
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346 +--------------------------------------------------------------------+ |
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347 | PROJECT : GSM-F&D (8411) MODULE : FAD_RCVF | |
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348 | STATE : code ROUTINE : rcv_SetFinalBuffer | |
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349 +--------------------------------------------------------------------+ |
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350 |
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351 PURPOSE : set RBM for final MSG data |
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352 |
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353 */ |
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354 |
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355 GLOBAL void rcv_SetFinalBuffer (void) |
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356 { |
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357 T_FAD_DATA_IND *fad_data_ind; |
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358 |
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359 TRACE_FUNCTION ("rcv_SetFinalBuffer()"); |
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360 |
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361 rcv_GetMsgData (&fad_data_ind, FALSE); |
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362 sig_rcv_ker_msg_ind (fad_data_ind); |
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363 fad_data->rcv.t30_req_frames = FALSE; |
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364 } |
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365 |
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366 /* |
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367 +--------------------------------------------------------------------+ |
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368 | PROJECT : GSM-F&D (8411) MODULE : FAD_RCVF | |
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369 | STATE : code ROUTINE : rcv_GetMsgData | |
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370 +--------------------------------------------------------------------+ |
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371 |
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372 PURPOSE : |
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373 |
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374 */ |
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375 |
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376 GLOBAL BOOL rcv_GetMsgData (T_FAD_DATA_IND **fad_data_ind, BOOL data_incoming) |
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377 { |
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378 TRACE_FUNCTION ("rcv_GetMsgData()"); |
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379 |
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380 *fad_data_ind = rbm_get_prim (); |
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381 |
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382 if (data_incoming) |
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383 { |
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384 /* MSG data still being received */ |
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385 if (*fad_data_ind EQ NULL) |
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386 return FALSE; |
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387 |
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388 (*fad_data_ind)->final = FALSE; |
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389 } |
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390 else |
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391 { |
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392 /* MSG data no longer being received - SYNC detected */ |
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393 |
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394 if (*fad_data_ind NEQ NULL) |
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395 (*fad_data_ind)->final = FALSE; |
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396 else |
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397 { |
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398 *fad_data_ind = rbm_get_curr_prim (); |
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399 |
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400 /* buffer empty - end of MSG phase */ |
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401 fad_data->rcv.data_in_rbm = FALSE; |
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402 |
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403 if (*fad_data_ind EQ NULL) |
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404 return FALSE; |
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|
405 |
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406 (*fad_data_ind)->final = TRUE; |
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parents:
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407 } |
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parents:
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|
408 } |
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409 return (TRUE); |
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parents:
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|
410 } |
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parents:
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|
411 |