FreeCalypso > hg > fc-tourmaline
annotate src/g23m-gprs/llc/llc_irxs.c @ 303:f76436d19a7a default tip
!GPRS config: fix long-standing AT+COPS chance hanging bug
There has been a long-standing bug in FreeCalypso going back years:
sometimes in the AT command bring-up sequence of an ACI-only MS,
the AT+COPS command would produce only a power scan followed by
cessation of protocol stack activity (only L1 ADC traces), instead
of the expected network search sequence. This behaviour was seen
in different FC firmware versions going back to Citrine, and seemed
to follow some law of chance, not reliably repeatable.
This bug has been tracked down and found to be specific to !GPRS
configuration, stemming from our TCS2/TCS3 hybrid and reconstruction
of !GPRS support that was bitrotten in TCS3.2/LoCosto version.
ACI module psa_mms.c, needed only for !GPRS, was missing in the TCS3
version and had to be pulled from TCS2 - but as it turns out,
there is a new field in the MMR_REG_REQ primitive that needs to be
set correctly, and that psa_mms.c module is the place where this
initialization needed to be added.
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Thu, 08 Jun 2023 08:23:37 +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 : |
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4 | Modul : |
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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 is part of the entity LLC and implements all |
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18 | functions to handles the incoming process internal signals as |
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19 | described in the SDL-documentation (IRX-statemachine) |
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20 +----------------------------------------------------------------------------- |
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21 */ |
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22 |
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23 #ifndef LLC_IRXS_C |
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24 #define LLC_IRXS_C |
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25 #endif |
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26 |
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27 #define ENTITY_LLC |
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28 |
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29 /*==== INCLUDES =============================================================*/ |
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30 |
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31 #include "typedefs.h" /* to get Condat data types */ |
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32 #include "vsi.h" /* to get a lot of macros */ |
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33 #include "macdef.h" |
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34 #include "gprs.h" |
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35 #include "gsm.h" /* to get a lot of macros */ |
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36 #include "cnf_llc.h" /* to get cnf-definitions */ |
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37 #include "mon_llc.h" /* to get mon-definitions */ |
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38 #include "prim.h" /* to get the definitions of used SAP and directions */ |
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39 #include "llc.h" /* to get the global entity definitions */ |
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40 |
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41 #include "llc_irxf.h" /* to get IRX helper functions */ |
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42 #include "llc_irxl.h" /* to get IRX label functions */ |
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43 #include "llc_itxs.h" /* to get IRX/ITX signals */ |
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44 #include "llc_us.h" /* to get U signals */ |
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45 |
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46 |
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47 /*==== CONST ================================================================*/ |
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48 |
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49 /*==== LOCAL VARS ===========================================================*/ |
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50 |
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51 /*==== PRIVATE FUNCTIONS ====================================================*/ |
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52 |
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53 /*==== PUBLIC FUNCTIONS =====================================================*/ |
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54 |
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55 |
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56 |
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57 /* |
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58 +------------------------------------------------------------------------------ |
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59 | Function : sig_llme_irx_assign_req |
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60 +------------------------------------------------------------------------------ |
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61 | Description : Handles the internal signal SIG_LLME_IRX_ASSIGN_REQ |
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62 | |
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63 | Parameters : |
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64 | |
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65 +------------------------------------------------------------------------------ |
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66 */ |
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67 GLOBAL void sig_llme_irx_assign_req (void) |
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68 { |
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69 TRACE_ISIG( "sig_llme_irx_assign_req" ); |
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70 |
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71 switch (GET_STATE(IRX)) |
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72 { |
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73 case IRX_TLLI_UNASSIGNED: |
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74 /* |
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75 * Initialise current incarnation. |
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76 */ |
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77 irx_init_sapi(); |
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78 SET_STATE (IRX, IRX_TLLI_ASSIGNED); |
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79 break; |
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80 |
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81 default: |
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82 TRACE_ERROR( "SIG_LLME_IRX_ASSIGN_REQ unexpected" ); |
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83 break; |
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84 } |
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85 } /* sig_llme_irx_assign_req() */ |
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86 |
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87 |
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88 /* |
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89 +------------------------------------------------------------------------------ |
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90 | Function : sig_llme_irx_unassign_req |
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91 +------------------------------------------------------------------------------ |
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92 | Description : Handles the internal signal SIG_LLME_IRX_UNASSIGN_REQ |
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93 | |
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94 | Parameters : |
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95 | |
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96 +------------------------------------------------------------------------------ |
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97 */ |
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98 GLOBAL void sig_llme_irx_unassign_req (void) |
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99 { |
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100 TRACE_ISIG( "sig_llme_irx_unassign_req" ); |
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101 |
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102 switch (GET_STATE(IRX)) |
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103 { |
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104 case IRX_TLLI_UNASSIGNED: |
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105 /* |
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106 * Ignore unexpected signal |
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107 */ |
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108 break; |
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109 |
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110 default: |
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111 /* |
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112 * Delete stored I frames and change to state TLLI_UNASSIGNED |
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113 */ |
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114 irx_queue_clean(); |
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115 irx_init_sapi(); |
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116 SET_STATE (IRX, IRX_TLLI_UNASSIGNED); |
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117 break; |
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118 } |
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119 } /* sig_llme_irx_unassign_req() */ |
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120 |
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121 |
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122 /* |
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123 +------------------------------------------------------------------------------ |
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124 | Function : sig_llme_irx_reset_req |
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125 +------------------------------------------------------------------------------ |
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126 | Description : Handles the internal signal SIG_LLME_IRX_RESET_REQ |
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127 | |
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128 | Parameters : |
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129 | |
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130 +------------------------------------------------------------------------------ |
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131 */ |
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132 GLOBAL void sig_llme_irx_reset_req (void) |
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133 { |
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134 TRACE_ISIG( "sig_llme_irx_reset_req" ); |
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135 |
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136 |
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137 switch (GET_STATE(IRX)) |
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138 { |
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139 case IRX_TLLI_UNASSIGNED: |
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140 case IRX_TLLI_ASSIGNED: |
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141 /* |
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142 * Ignore signal. |
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143 */ |
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144 break; |
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145 |
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146 case IRX_ABM: |
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147 case IRX_ABM_BUSY: |
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148 /* |
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149 * Delete stored I frames and change to state TLLI_UNASSIGNED |
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150 */ |
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151 irx_queue_clean(); |
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152 irx_init_sapi(); |
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153 SET_STATE (IRX, IRX_TLLI_ASSIGNED); |
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154 break; |
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155 |
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156 default: |
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157 TRACE_ERROR( "SIG_LLME_IRX_RESET_REQ unexpected" ); |
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158 break; |
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159 } |
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160 } /* sig_llme_irx_reset_req() */ |
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161 |
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162 |
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163 |
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164 /* |
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165 +------------------------------------------------------------------------------ |
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166 | Function : sig_llme_irx_abmest_req |
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167 +------------------------------------------------------------------------------ |
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168 | Description : Handles the internal signal SIG_LLME_IRX_ABMEST_REQ |
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169 | |
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170 | Parameters : |
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171 | |
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172 +------------------------------------------------------------------------------ |
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173 */ |
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174 GLOBAL void sig_llme_irx_abmest_req (void) |
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175 { |
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176 TRACE_ISIG( "sig_llme_irx_abmest_req" ); |
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177 |
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178 switch (GET_STATE(IRX)) |
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179 { |
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180 case IRX_TLLI_ASSIGNED: |
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181 /* |
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182 * Initialize ABM operation |
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183 */ |
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184 irx_init_abm(); |
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185 SET_STATE (IRX, IRX_ABM); |
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186 break; |
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187 |
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188 case IRX_ABM: |
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189 case IRX_ABM_BUSY: |
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190 /* |
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191 * Delete stored I frames and re-initialize ABM operation |
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192 */ |
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193 irx_queue_clean(); |
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194 irx_init_abm(); |
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195 SET_STATE (IRX, IRX_ABM); |
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196 break; |
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197 |
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198 default: |
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199 TRACE_ERROR( "SIG_LLME_IRX_ABMEST_REQ unexpected" ); |
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200 break; |
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201 } |
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202 } /* sig_llme_irx_abmest_req() */ |
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203 |
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204 |
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205 |
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206 /* |
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207 +------------------------------------------------------------------------------ |
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208 | Function : sig_llme_irx_abmrel_req |
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209 +------------------------------------------------------------------------------ |
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210 | Description : Handles the internal signal SIG_LLME_IRX_ABMREL_REQ |
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211 | |
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212 | Parameters : |
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213 | |
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214 +------------------------------------------------------------------------------ |
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215 */ |
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216 GLOBAL void sig_llme_irx_abmrel_req (void) |
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217 { |
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218 TRACE_ISIG( "sig_llme_irx_abmrel_req" ); |
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219 |
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220 switch (GET_STATE(IRX)) |
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221 { |
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222 case IRX_ABM: |
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223 case IRX_ABM_BUSY: |
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224 /* |
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225 * Delete stored I frames and end ABM operation |
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226 */ |
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227 irx_queue_clean(); |
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228 irx_init_sapi(); |
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229 SET_STATE (IRX, IRX_TLLI_ASSIGNED); |
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230 break; |
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231 |
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232 default: |
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233 /* TRACE_ERROR( "SIG_LLME_IRX_ABMREL_REQ unexpected" ); but ok */ |
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234 break; |
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235 } |
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236 } /* sig_llme_irx_abmrel_req() */ |
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237 |
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238 |
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239 |
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240 /* |
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241 +------------------------------------------------------------------------------ |
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242 | Function : sig_rx_irx_data_ind |
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243 +------------------------------------------------------------------------------ |
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244 | Description : Handles the internal signal SIG_RX_IRX_DATA_IND |
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245 | |
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246 | Parameters : ll_unitdata_ind - a valid pointer to an LL-UNITDATA-IND |
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247 | primitive |
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248 | command - contains the command within the primitive |
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249 | frame_type - type of PDU (I or S frame) |
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250 | cr_bit - setting of the CR bit |
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251 | a_bit - setting of the A bit |
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252 | ns - send sequence number of the frame |
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253 | nr - receive sequence number of the frame |
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254 | |
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255 +------------------------------------------------------------------------------ |
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256 */ |
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257 GLOBAL void sig_rx_irx_data_ind (T_LL_UNITDATA_IND *ll_unitdata_ind, |
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258 T_COMMAND command, |
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259 T_PDU_TYPE frame_type, |
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260 T_BIT cr_bit, |
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261 T_BIT a_bit, |
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262 T_FRAME_NUM ns, |
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263 T_FRAME_NUM nr) |
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264 { |
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265 UBYTE state; |
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266 |
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267 TRACE_ISIG( "sig_rx_irx_data_ind" ); |
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268 |
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269 #ifdef TRACE_EVE |
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270 { |
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271 static char* sf[] = { "RR", "ACK", "RNR", "SACK" }; |
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272 |
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273 if(command <= 3) |
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274 { |
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275 if(frame_type == I_FRAME) |
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276 { |
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277 TRACE_4_INFO("got %s I-Frame NS:%d NR:%d A:%d", sf[command], ns, nr, a_bit); |
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278 } |
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279 else |
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280 { |
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281 TRACE_3_INFO("got %s S-Frame NR:%d A:%d", sf[command], nr, a_bit); |
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282 } |
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283 } |
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284 } |
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285 #endif |
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286 |
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287 llc_data->u->current_tlli = ll_unitdata_ind->tlli; |
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288 |
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289 switch ( (state = GET_STATE(IRX)) ) |
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290 { |
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291 case IRX_TLLI_ASSIGNED: |
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292 /* |
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293 * Send a DM response to any valid command received, that |
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294 * cannot be handeled (GSM 4.64 Release 6.7.0 Chapter 6.4.1.4) |
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295 */ |
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296 TRACE_0_INFO("S- or I/S-Frame received in unexpected state"); |
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297 |
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298 PFREE (ll_unitdata_ind); |
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299 |
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300 sig_irx_u_no_frame_expected_ind(); |
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301 break; |
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302 |
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303 case IRX_ABM: |
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304 case IRX_ABM_BUSY: |
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305 /* |
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306 * va <= nr <= vs |
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307 */ |
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308 if ( FRAME_NUM_VALID (llc_data->sapi->va, nr, llc_data->sapi->vs) ) |
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309 { |
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310 /* |
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311 * frame valid |
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312 */ |
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313 irx_ack_all_to ((T_FRAME_NUM)(nr - 1)); |
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314 |
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315 switch (command) |
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316 { |
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317 case I_RR: |
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318 /* |
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319 * Label IRX_RR |
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320 */ |
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321 sig_irx_itx_peer_ready_ind(); |
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322 break; |
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323 |
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324 case I_ACK: |
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325 /* |
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326 * Label IRX_ACK |
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327 */ |
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328 sig_irx_itx_ack_ind (FALSE, nr ); |
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329 sig_irx_itx_ack_ind (TRUE, (T_FRAME_NUM)(nr + 1)); |
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330 sig_irx_itx_cnf_l3data_req (); |
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331 sig_irx_itx_peer_ready_ind (); |
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332 break; |
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333 |
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334 case I_SACK: |
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335 /* |
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336 * Label IRX_SACK |
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337 */ |
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338 sig_irx_itx_ack_ind (FALSE, nr); |
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339 irx_handle_sack (nr, ll_unitdata_ind, frame_type); |
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340 sig_irx_itx_peer_ready_ind(); |
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341 break; |
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342 |
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343 case I_RNR: |
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344 /* |
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345 * Label IRX_RNR |
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346 */ |
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347 sig_irx_itx_peer_busy_ind(); |
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348 break; |
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349 |
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350 default: |
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351 TRACE_ERROR( "Unexpected command received" ); |
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352 break; |
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353 } |
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354 } |
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355 |
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356 if (frame_type == I_FRAME) |
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357 { |
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358 irx_label_if (ll_unitdata_ind, ns, a_bit, state); |
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359 } |
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360 else /* S_FRAME */ |
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361 { |
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362 if (state == IRX_ABM) |
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363 { |
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364 irx_send_ack (a_bit); |
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365 PFREE (ll_unitdata_ind); |
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366 } |
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367 else |
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|
368 { |
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|
369 irx_send_rnr (); |
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370 PFREE (ll_unitdata_ind); |
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changeset
|
371 } |
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changeset
|
372 } |
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|
373 break; |
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374 |
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|
375 default: |
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|
376 /* |
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|
377 * Free unexpected data |
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378 */ |
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379 PFREE (ll_unitdata_ind); |
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380 TRACE_ERROR( "SIG_RX_IRX_DATA_IND unexpected" ); |
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381 break; |
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|
382 } |
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383 } /* sig_rx_irx_data_ind() */ |
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changeset
|
384 |
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parents:
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changeset
|
385 |
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parents:
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changeset
|
386 |
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|
387 /* |
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388 +------------------------------------------------------------------------------ |
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389 | Function : sig_itx_irx_s_frame_req |
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390 +------------------------------------------------------------------------------ |
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391 | Description : Handles the internal signal SIG_ITX_IRX_S_FRAME_REQ |
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|
392 | |
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|
393 | Parameters : |
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|
394 | |
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|
395 +------------------------------------------------------------------------------ |
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|
396 */ |
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397 GLOBAL void sig_itx_irx_s_frame_req (T_ABIT_REQ_TYPE req) |
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|
398 { |
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|
399 TRACE_ISIG( "sig_itx_irx_s_frame_req" ); |
fa8dc04885d8
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parents:
diff
changeset
|
400 |
fa8dc04885d8
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|
401 switch (GET_STATE(IRX)) |
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|
402 { |
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parents:
diff
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|
403 case IRX_ABM: |
fa8dc04885d8
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parents:
diff
changeset
|
404 /* |
fa8dc04885d8
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parents:
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|
405 * Send an S frame appropriate for the current state |
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parents:
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|
406 */ |
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parents:
diff
changeset
|
407 if ( llc_data->irx->last_ns == NS_EQUAL_VR ) |
fa8dc04885d8
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parents:
diff
changeset
|
408 { |
fa8dc04885d8
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parents:
diff
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|
409 sig_irx_itx_send_rr_req (req); |
fa8dc04885d8
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parents:
diff
changeset
|
410 } |
fa8dc04885d8
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parents:
diff
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|
411 else if ( llc_data->irx->last_ns == NS_EQUAL_VR_PLUS_1 ) |
fa8dc04885d8
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parents:
diff
changeset
|
412 { |
fa8dc04885d8
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parents:
diff
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|
413 sig_irx_itx_send_ack_req (req); |
fa8dc04885d8
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parents:
diff
changeset
|
414 } |
fa8dc04885d8
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parents:
diff
changeset
|
415 else |
fa8dc04885d8
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
416 { |
fa8dc04885d8
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parents:
diff
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|
417 T_SACK_BITMAP bitmap; |
fa8dc04885d8
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parents:
diff
changeset
|
418 |
fa8dc04885d8
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parents:
diff
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|
419 irx_build_sack_bitmap( &bitmap ); |
fa8dc04885d8
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parents:
diff
changeset
|
420 sig_irx_itx_send_sack_req (req, &bitmap); |
fa8dc04885d8
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
421 } |
fa8dc04885d8
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parents:
diff
changeset
|
422 /* SET_STATE (IRX, SAME_STATE); */ |
fa8dc04885d8
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
423 break; |
fa8dc04885d8
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
424 |
fa8dc04885d8
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
425 |
fa8dc04885d8
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
426 case IRX_ABM_BUSY: |
fa8dc04885d8
src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
427 /* |
fa8dc04885d8
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
428 * The appropriate S frame in state busy anytime is an RNR |
fa8dc04885d8
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
429 */ |
fa8dc04885d8
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
430 sig_irx_itx_send_rnr_req (req); |
fa8dc04885d8
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parents:
diff
changeset
|
431 /* SET_STATE (IRX, SAME_STATE); */ |
fa8dc04885d8
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
432 break; |
fa8dc04885d8
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
433 |
fa8dc04885d8
src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
434 default: |
fa8dc04885d8
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
435 TRACE_ERROR( "SIG_ITX_IRX_S_FRAME_REQ unexpected" ); |
fa8dc04885d8
src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
436 break; |
fa8dc04885d8
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
437 } |
fa8dc04885d8
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Mychaela Falconia <falcon@freecalypso.org>
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diff
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|
438 } /* sig_itx_irx_s_frame_req() */ |
fa8dc04885d8
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
439 |
fa8dc04885d8
src/g23m-*: import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
440 |