FreeCalypso > hg > fc-magnetite
annotate src/g23m-gprs/llc/llc_irxf.c @ 662:8cd8fd15a095
SIM speed enhancement re-enabled and made configurable
TI's original code supported SIM speed enhancement, but Openmoko had it
disabled, and OM's disabling of speed enhancement somehow caused certain
SIM cards to start working which didn't work before (OM's bug #666).
Because our FC community is much smaller in year 2020 than OM's community
was in their day, we are not able to find one of those #666-affected SIMs,
thus the real issue they had encountered remains elusive. Thus our
solution is to re-enable SIM speed enhancement and simply wait for if
and when someone runs into a #666-affected SIM once again. We provide
a SIM_allow_speed_enhancement global variable that allows SIM speed
enhancement to be enabled or disabled per session, and an /etc/SIM_spenh
file in FFS that allows it to enabled or disabled on a non-volatile
basis. SIM speed enhancement is now enabled by default.
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Sun, 24 May 2020 05:02:28 +0000 |
parents | 219afcfc6250 |
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rev | line source |
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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 | procedures and functions as described in the |
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19 | 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_IRXF_C |
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24 #define LLC_IRXF_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 <string.h> |
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32 |
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33 #include "typedefs.h" /* to get Condat data types */ |
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34 #include "vsi.h" /* to get a lot of macros */ |
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35 #include "macdef.h" |
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36 #include "gprs.h" |
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37 #include "gsm.h" /* to get a lot of macros */ |
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38 #include "cnf_llc.h" /* to get cnf-definitions */ |
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39 #include "mon_llc.h" /* to get mon-definitions */ |
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40 #include "prim.h" /* to get the definitions of used SAP and directions */ |
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41 #include "llc.h" /* to get the global entity definitions */ |
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42 |
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43 #include "llc_itxs.h" /* to get ITX signal definitions */ |
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44 #include "llc_irxf.h" /* to get IRX local functions */ |
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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 : irx_init |
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60 +------------------------------------------------------------------------------ |
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61 | Description : This procedure initialises all necessary variables of |
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62 | i_frames_rx for all SAPIs. |
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63 | |
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64 | Parameters : |
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65 | |
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66 +------------------------------------------------------------------------------ |
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67 */ |
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68 GLOBAL void irx_init (void) |
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69 { |
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70 UBYTE inc; |
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71 |
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72 TRACE_FUNCTION( "irx_init" ); |
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73 |
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74 /* |
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75 * Initialise all 4 SAPIs |
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76 */ |
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77 SWITCH_SERVICE (llc, irx, 0); |
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78 INIT_STATE (IRX_0, IRX_TLLI_UNASSIGNED); |
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79 |
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80 SWITCH_SERVICE (llc, irx, 1); |
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81 INIT_STATE (IRX_1, IRX_TLLI_UNASSIGNED); |
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82 |
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83 SWITCH_SERVICE (llc, irx, 2); |
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84 INIT_STATE (IRX_2, IRX_TLLI_UNASSIGNED); |
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85 |
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86 SWITCH_SERVICE (llc, irx, 3); |
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87 INIT_STATE (IRX_3, IRX_TLLI_UNASSIGNED); |
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88 |
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89 /* |
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90 * Initialise the IRX data structure |
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91 */ |
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92 for (inc = 0; inc < IRX_NUM_INC; inc++) |
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93 { |
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94 SWITCH_SERVICE (llc, irx, inc); |
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95 |
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96 /* |
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97 * Free old used resources (in case of an LLC restart): |
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98 * memory, stored primitives, running timer. |
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99 */ |
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100 irx_queue_clean (); |
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101 |
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102 llc_data->irx->ll_send_ready = FALSE; |
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103 llc_data->irx->last_ns = NS_EQUAL_VR; |
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104 |
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105 llc_data->irx->queue = NULL; |
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106 } |
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107 |
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108 return; |
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109 } /* irx_init() */ |
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110 |
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111 |
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112 /* |
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113 +------------------------------------------------------------------------------ |
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114 | Function : irx_init_sapi |
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115 +------------------------------------------------------------------------------ |
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116 | Description : This procedure initialises all necessary variables of |
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117 | i_frames_rx for the given SAPI. |
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118 | |
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119 | Parameters : |
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120 | |
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121 +------------------------------------------------------------------------------ |
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122 */ |
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123 GLOBAL void irx_init_sapi (void) |
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124 { |
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125 TRACE_FUNCTION( "irx_init_sapi" ); |
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126 |
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127 llc_data->sapi->va = 0; |
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128 llc_data->sapi->vs = 0; |
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129 llc_data->sapi->vr = 0; |
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130 |
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131 llc_data->irx->vf = 0; |
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132 llc_data->irx->last_ns = NS_EQUAL_VR; |
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133 llc_data->irx->B_rx = 0; |
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134 |
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135 return; |
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136 } /* irx_init_sapi() */ |
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137 |
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138 |
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139 /* |
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140 +------------------------------------------------------------------------------ |
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141 | Function : irx_init_abm |
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142 +------------------------------------------------------------------------------ |
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143 | Description : This procedure initialises all necessary variables of |
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144 | i_frames_rx for the given SAPI when switching into ABM. |
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145 | |
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146 | Parameters : |
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147 | |
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148 +------------------------------------------------------------------------------ |
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149 */ |
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150 GLOBAL void irx_init_abm (void) |
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151 { |
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152 TRACE_FUNCTION( "irx_init_abm" ); |
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153 |
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154 llc_data->sapi->va = 0; |
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155 llc_data->sapi->vs = 0; |
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156 llc_data->sapi->vr = 0; |
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157 |
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158 llc_data->irx->vf = 0; |
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159 llc_data->irx->last_ns = NS_EQUAL_VR; |
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160 |
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161 /* |
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162 * Reset OCs for acknowledged transfer. |
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163 */ |
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164 llc_data->sapi->oc_i_tx = 0L; |
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165 llc_data->sapi->oc_i_rx = 0L; |
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166 |
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167 return; |
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168 } /* irx_init_abm() */ |
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169 |
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170 |
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171 |
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172 /* |
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173 +------------------------------------------------------------------------------ |
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174 | Function : irx_queue_store |
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175 +------------------------------------------------------------------------------ |
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176 | Description : This procedure stores the primitive into the per ns sorted |
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177 | queue. If the queue is full, is_busy set to TRUE will be |
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178 | returnd. |
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179 | |
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180 | Parameters : |
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181 | |
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182 +------------------------------------------------------------------------------ |
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183 */ |
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184 GLOBAL void irx_queue_store (T_LL_UNITDATA_IND *ll_unitdata_ind, |
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185 T_FRAME_NUM ns, |
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186 BOOL *is_busy) |
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187 { |
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188 T_IRX_QUEUE** entry = &(llc_data->irx->queue); |
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189 T_IRX_QUEUE* next; |
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190 T_FRAME_NUM n = llc_data->irx->vf; |
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191 ULONG M = *(llc_data->md) * 16; |
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192 |
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193 TRACE_FUNCTION( "irx_queue_store" ); |
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194 |
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195 /* |
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196 * First skip already for L3 ready waiting entries |
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197 */ |
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198 while (*entry && (*entry)->ns == n) |
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199 { |
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200 n++; |
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201 n %= (MAX_SEQUENCE_NUMBER+1); |
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202 |
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203 if ((*entry)->ns == ns) |
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204 { |
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205 /* |
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206 * Ignore duplicate frame |
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207 */ |
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208 *is_busy = FALSE; |
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209 |
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210 TRACE_0_INFO( "Unexpected duplicate frame number" ); |
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211 PFREE (ll_unitdata_ind); |
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212 |
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213 return; |
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214 } |
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215 |
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216 entry = &((*entry)->next); |
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217 } |
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218 |
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219 /* |
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220 * Now find the inserting position (queue sorted per ns, |
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221 * 'lower' frame numbers stored first) |
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222 */ |
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223 while (*entry) |
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224 { |
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225 if ((*entry)->ns == ns) |
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226 { |
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227 /* |
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228 * Ignore duplicate frame |
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229 */ |
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230 *is_busy = FALSE; |
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231 |
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232 TRACE_0_INFO( "Duplicate frame number received" ); |
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233 PFREE (ll_unitdata_ind); |
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234 |
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235 return; |
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236 } |
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237 |
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238 /* |
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239 * n <= ns <= (*entry)->ns - 1 |
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240 */ |
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241 if (FRAME_NUM_VALID( n, ns, (*entry)->ns - 1)) |
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242 { |
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243 /* |
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244 * Found a nice place in between |
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245 */ |
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246 break; |
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247 } |
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248 |
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249 entry = &((*entry)->next); |
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250 } |
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251 |
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252 /* |
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253 * Position found - save ptr to next entry |
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254 */ |
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255 next = *entry; |
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256 |
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257 /* |
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258 * Allocate memory |
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259 */ |
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260 MALLOC( *entry, sizeof(T_IRX_QUEUE) ); |
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261 |
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262 if( *entry ) |
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263 { |
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264 /* |
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265 * Memory successful allocated. Fill in struct entries. |
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266 */ |
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267 (*entry)->next = next; |
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268 (*entry)->ns = ns; |
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269 (*entry)->frame = ll_unitdata_ind; |
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270 |
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271 /* |
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272 * Increase amount of stored Information in rx queue |
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273 */ |
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274 llc_data->irx->B_rx += BYTELEN(ll_unitdata_ind->sdu.l_buf); |
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275 |
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276 /* |
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277 * Determine 'own receiver busy' condition |
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278 */ |
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279 if ((M == 0) || (*(llc_data->n201_i) <= M - llc_data->irx->B_rx)) |
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280 { |
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281 *is_busy = FALSE; |
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282 } |
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283 else |
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284 { |
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285 *is_busy = TRUE; |
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286 } |
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287 } |
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288 else |
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289 { |
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290 /* |
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291 * Out of memory |
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292 */ |
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293 *is_busy = TRUE; |
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294 TRACE_ERROR( "Out of memory in irx_queue_store()" ); |
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295 PFREE (ll_unitdata_ind); |
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296 } |
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297 |
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298 } /* irx_queue_store() */ |
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299 |
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300 |
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301 /* |
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302 +------------------------------------------------------------------------------ |
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303 | Function : irx_update_vr |
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304 +------------------------------------------------------------------------------ |
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305 | Description : This procedure increments V(R) if the next following frames |
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306 | are already stored in the queue. |
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307 | |
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308 | Parameters : |
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309 | |
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310 +------------------------------------------------------------------------------ |
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311 */ |
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312 GLOBAL void irx_update_vr (void) |
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313 { |
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314 T_IRX_QUEUE* entry = llc_data->irx->queue; |
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315 |
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316 TRACE_FUNCTION( "irx_update_vr" ); |
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317 |
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318 /* |
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319 * Search the queue from the beginning to entry V(R) |
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320 */ |
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321 while (entry) |
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322 { |
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323 if (entry->ns == llc_data->sapi->vr) |
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324 { |
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325 /* |
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326 * Increment V(R) and continue searching |
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327 */ |
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328 llc_data->sapi->vr++; |
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329 |
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330 if (llc_data->sapi->vr > MAX_SEQUENCE_NUMBER) |
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331 { |
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332 llc_data->sapi->oc_i_rx += (MAX_SEQUENCE_NUMBER+1); |
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333 llc_data->sapi->vr = 0; |
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334 } |
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335 } |
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336 |
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337 entry = entry->next; |
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338 } |
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339 |
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340 } /* irx_update_vr() */ |
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341 |
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342 |
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343 /* |
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344 +------------------------------------------------------------------------------ |
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345 | Function : irx_get_last_queued_ns |
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346 +------------------------------------------------------------------------------ |
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347 | Description : This procedure returns the frame number of the last queue entry |
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348 | |
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349 | Parameters : *found - set to TRUE if ns found, FALSE otherwise |
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350 | |
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351 +------------------------------------------------------------------------------ |
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352 */ |
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353 GLOBAL void irx_get_last_queued_ns (BOOL *found, T_FRAME_NUM *num) |
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354 { |
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355 T_IRX_QUEUE* entry = llc_data->irx->queue; |
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356 |
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357 TRACE_FUNCTION( "irx_get_last_queued_ns" ); |
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358 |
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359 /* |
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360 * Search the queue from the beginning to last entry |
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361 */ |
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362 while (entry AND entry->next) |
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363 entry = entry->next; |
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364 |
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365 if (entry) |
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366 { |
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367 *found = TRUE; |
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368 *num = entry->ns; |
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369 } |
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370 else |
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371 { |
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372 *found = FALSE; |
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373 *num = 0; |
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374 } |
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375 |
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376 } /* irx_get_last_queued_ns() */ |
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377 |
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378 |
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379 /* |
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380 +------------------------------------------------------------------------------ |
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381 | Function : irx_queue_retrieve |
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382 +------------------------------------------------------------------------------ |
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383 | Description : If the next frame in sequence is stored in the queue then this |
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384 | procedure will return the primitive pointer, sets found to |
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385 | TRUE and removes the frame from the queue. |
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386 | |
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387 | Parameters : |
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388 | |
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389 +------------------------------------------------------------------------------ |
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390 */ |
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391 GLOBAL void irx_queue_retrieve (T_LL_UNITDATA_IND **ll_unitdata_ind, BOOL *found) |
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392 { |
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393 T_IRX_QUEUE** entry = &(llc_data->irx->queue); |
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394 |
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395 TRACE_FUNCTION( "irx_queue_retrieve" ); |
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396 |
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397 /* |
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398 * Take the first queue entry, if this is the next one (queue is sorted per ns) |
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399 */ |
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400 if ((*entry != NULL) && ((*entry)->ns == llc_data->irx->vf)) |
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401 { |
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402 /* |
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403 * Store pointer to the entry |
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404 */ |
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405 T_IRX_QUEUE* current = *entry; |
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|
406 |
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|
407 /* |
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|
408 * Remove entry from the queue (make second to first) |
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|
409 */ |
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|
410 *entry = current->next; |
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|
411 |
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412 *ll_unitdata_ind = current->frame; |
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|
413 |
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|
414 /* |
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|
415 * Decrease amount of stored Information in rx queue |
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|
416 */ |
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417 if (llc_data->irx->B_rx >= (ULONG)(BYTELEN((*ll_unitdata_ind)->sdu.l_buf))) |
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|
418 { |
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419 llc_data->irx->B_rx -= BYTELEN((*ll_unitdata_ind)->sdu.l_buf); |
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420 } |
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421 else |
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422 { |
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423 llc_data->irx->B_rx = 0; |
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424 TRACE_0_INFO("Unexpected SDU lenght handled"); |
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|
425 } |
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|
426 |
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|
427 /* |
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428 * Free retrieved entry |
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|
429 */ |
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|
430 MFREE (current); |
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|
431 |
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432 *found = TRUE; |
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parents:
diff
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|
433 |
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parents:
diff
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|
434 /* |
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parents:
diff
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|
435 * Increment V(f) (= Next frame number to forward to L3) |
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parents:
diff
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|
436 */ |
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parents:
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|
437 llc_data->irx->vf += 1; |
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parents:
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|
438 llc_data->irx->vf %= (MAX_SEQUENCE_NUMBER+1); |
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parents:
diff
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|
439 |
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parents:
diff
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|
440 return; |
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parents:
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|
441 } |
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|
442 |
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parents:
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|
443 /* |
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parents:
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|
444 * Set default return values |
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parents:
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|
445 */ |
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parents:
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|
446 *ll_unitdata_ind = NULL; |
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parents:
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|
447 *found = FALSE; |
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parents:
diff
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|
448 } |
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|
449 |
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parents:
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|
450 |
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parents:
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|
451 |
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parents:
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|
452 /* |
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parents:
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|
453 +------------------------------------------------------------------------------ |
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parents:
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|
454 | Function : irx_queue_clean |
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parents:
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|
455 +------------------------------------------------------------------------------ |
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parents:
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|
456 | Description : This procedure removes all entries from the IRX queue |
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parents:
diff
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|
457 | |
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parents:
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458 | Parameters : |
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parents:
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|
459 | |
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parents:
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|
460 +------------------------------------------------------------------------------ |
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parents:
diff
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|
461 */ |
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parents:
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|
462 GLOBAL void irx_queue_clean (void) |
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parents:
diff
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|
463 { |
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parents:
diff
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|
464 T_IRX_QUEUE** entry = &(llc_data->irx->queue); |
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parents:
diff
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|
465 |
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parents:
diff
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|
466 TRACE_FUNCTION( "irx_queue_clean" ); |
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parents:
diff
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|
467 |
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parents:
diff
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|
468 while (*entry) |
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parents:
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|
469 { |
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parents:
diff
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|
470 /* |
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parents:
diff
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|
471 * get pointer to next (=first) entry |
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parents:
diff
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|
472 */ |
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parents:
diff
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|
473 T_IRX_QUEUE* current = *entry; |
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parents:
diff
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|
474 |
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parents:
diff
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|
475 /* |
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parents:
diff
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|
476 * Free frame, if one is attached to the entry |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
477 */ |
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parents:
diff
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|
478 if (current->frame != NULL) |
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parents:
diff
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|
479 { |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
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|
480 PFREE (current->frame); |
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parents:
diff
changeset
|
481 } |
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parents:
diff
changeset
|
482 |
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parents:
diff
changeset
|
483 /* |
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parents:
diff
changeset
|
484 * remove next entry from the entry (make second to first) |
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parents:
diff
changeset
|
485 */ |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
486 *entry = current->next; |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
487 |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
488 /* |
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parents:
diff
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|
489 * free the removed entry |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
490 */ |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
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|
491 MFREE (current); |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
492 } |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
493 |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
494 /* |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
495 * Adjust amount of stored Information in rx queue |
219afcfc6250
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
496 */ |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
497 llc_data->irx->B_rx = 0; |
219afcfc6250
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
498 |
219afcfc6250
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
499 } /* irx_queue_clean() */ |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
500 |
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parents:
diff
changeset
|
501 |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
502 |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
503 /* |
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parents:
diff
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|
504 +------------------------------------------------------------------------------ |
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parents:
diff
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|
505 | Function : irx_build_sack_bitmap |
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parents:
diff
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|
506 +------------------------------------------------------------------------------ |
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parents:
diff
changeset
|
507 | Description : This procedure builds a SACK bitmap, depending on current |
219afcfc6250
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
508 | status |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
509 | |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
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|
510 | Parameters : |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
511 | |
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parents:
diff
changeset
|
512 +------------------------------------------------------------------------------ |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
513 */ |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
514 GLOBAL void irx_build_sack_bitmap ( T_SACK_BITMAP *bitmap ) |
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parents:
diff
changeset
|
515 { |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
516 T_IRX_QUEUE* entry = llc_data->irx->queue; |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
517 int start_ns = (llc_data->sapi->vr + 1) % (MAX_SEQUENCE_NUMBER+1); |
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parents:
diff
changeset
|
518 T_FRAME_NUM num = llc_data->irx->vf; |
219afcfc6250
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
519 USHORT d; |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
520 |
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parents:
diff
changeset
|
521 |
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parents:
diff
changeset
|
522 TRACE_FUNCTION( "irx_build_sack_bitmap" ); |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
523 |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
524 /* |
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parents:
diff
changeset
|
525 * Init bitmap to 0 (= frame not successfully received) |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
526 */ |
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parents:
diff
changeset
|
527 memset (bitmap, 0, sizeof(T_SACK_BITMAP)); |
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parents:
diff
changeset
|
528 |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
529 /* |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
530 * Skip already for L3 ready waiting entries |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
531 */ |
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parents:
diff
changeset
|
532 while (entry && entry->ns == num) |
219afcfc6250
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parents:
diff
changeset
|
533 { |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
534 num++; |
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parents:
diff
changeset
|
535 num %= (MAX_SEQUENCE_NUMBER+1); |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
536 |
219afcfc6250
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
537 entry = entry->next; |
219afcfc6250
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
538 } |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
539 |
219afcfc6250
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
540 |
219afcfc6250
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
541 /* |
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parents:
diff
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|
542 * Check the queue for successful received entries |
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parents:
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|
543 */ |
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parents:
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|
544 while (entry) |
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parents:
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|
545 { |
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parents:
diff
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|
546 /* |
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parents:
diff
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|
547 * If frame is successful received, mark it in bitmap |
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parents:
diff
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|
548 */ |
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parents:
diff
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|
549 d = FRAME_NUM_DISTANCE(start_ns, entry->ns); |
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parents:
diff
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|
550 |
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parents:
diff
changeset
|
551 if (d < (S_FRAME_SACK_MAX_CTRL_OCTETS * 8)) |
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parents:
diff
changeset
|
552 { |
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parents:
diff
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|
553 bitmap->data[d>>3] |= 0x80>>(d%8); |
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parents:
diff
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|
554 } |
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parents:
diff
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|
555 |
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parents:
diff
changeset
|
556 entry = entry->next; |
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parents:
diff
changeset
|
557 } |
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parents:
diff
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|
558 } /* irx_build_sack_bitmap () */ |
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parents:
diff
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|
559 |
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parents:
diff
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|
560 |
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parents:
diff
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|
561 /* |
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parents:
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562 +------------------------------------------------------------------------------ |
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parents:
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|
563 | Function : irx_ack_all_to |
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parents:
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|
564 +------------------------------------------------------------------------------ |
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parents:
diff
changeset
|
565 | Description : This procedure handles the acknowledgement of transmitted I- |
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parents:
diff
changeset
|
566 | frames from va to n (which is equal to nr -1) |
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parents:
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|
567 | Parameters : |
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parents:
diff
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|
568 | |
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parents:
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|
569 +------------------------------------------------------------------------------ |
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parents:
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|
570 */ |
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parents:
diff
changeset
|
571 GLOBAL void irx_ack_all_to (T_FRAME_NUM n) |
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parents:
diff
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|
572 { |
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parents:
diff
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|
573 TRACE_FUNCTION( "irx_ack_all_to" ); |
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parents:
diff
changeset
|
574 |
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parents:
diff
changeset
|
575 n %= (MAX_SEQUENCE_NUMBER+1); |
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parents:
diff
changeset
|
576 |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
577 if (FRAME_WIN_VALID(n, llc_data->sapi->va, *(llc_data->ku))) |
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parents:
diff
changeset
|
578 { |
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parents:
diff
changeset
|
579 while (llc_data->sapi->va != (n+1)%(MAX_SEQUENCE_NUMBER+1)) |
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parents:
diff
changeset
|
580 { |
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parents:
diff
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|
581 sig_irx_itx_ack_ind (TRUE, llc_data->sapi->va); |
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parents:
diff
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|
582 |
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parents:
diff
changeset
|
583 llc_data->sapi->va++; |
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parents:
diff
changeset
|
584 llc_data->sapi->va %= (MAX_SEQUENCE_NUMBER+1); |
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parents:
diff
changeset
|
585 } |
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parents:
diff
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|
586 |
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parents:
diff
changeset
|
587 /* |
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parents:
diff
changeset
|
588 * Sending L3 Data confirmations |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
589 */ |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
590 sig_irx_itx_cnf_l3data_req (); |
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parents:
diff
changeset
|
591 } |
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parents:
diff
changeset
|
592 |
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parents:
diff
changeset
|
593 } /* irx_ack_all_to () */ |
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parents:
diff
changeset
|
594 |
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parents:
diff
changeset
|
595 |
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parents:
diff
changeset
|
596 /* |
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parents:
diff
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|
597 +------------------------------------------------------------------------------ |
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parents:
diff
changeset
|
598 | Function : irx_handle_sack |
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parents:
diff
changeset
|
599 +------------------------------------------------------------------------------ |
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parents:
diff
changeset
|
600 | Description : This procedure handles the acknowledge bits of a SACK |
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parents:
diff
changeset
|
601 | supervisory frame and strips the SACK bitmap from the SDU |
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parents:
diff
changeset
|
602 | |
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parents:
diff
changeset
|
603 | Parameters : |
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parents:
diff
changeset
|
604 | |
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parents:
diff
changeset
|
605 +------------------------------------------------------------------------------ |
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parents:
diff
changeset
|
606 */ |
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parents:
diff
changeset
|
607 GLOBAL void irx_handle_sack (T_FRAME_NUM nr, |
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parents:
diff
changeset
|
608 T_LL_UNITDATA_IND *ll_unitdata_ind, |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
609 T_PDU_TYPE frame_type) |
219afcfc6250
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
610 { |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
611 int i, n, bytes; |
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parents:
diff
changeset
|
612 T_FRAME_NUM rn = 0; |
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parents:
diff
changeset
|
613 T_SACK_BITMAP *bm; |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
614 |
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parents:
diff
changeset
|
615 TRACE_FUNCTION( "irx_handle_sack" ); |
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parents:
diff
changeset
|
616 |
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parents:
diff
changeset
|
617 /* |
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parents:
diff
changeset
|
618 * Extract SACK bitmap and number of Ptr to bits from sdu: |
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parents:
diff
changeset
|
619 */ |
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parents:
diff
changeset
|
620 if (frame_type == I_FRAME) |
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parents:
diff
changeset
|
621 { |
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parents:
diff
changeset
|
622 bm = (T_SACK_BITMAP*)&(ll_unitdata_ind->sdu.buf[ |
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parents:
diff
changeset
|
623 (ll_unitdata_ind->sdu.o_buf >> 3) + 1]); |
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parents:
diff
changeset
|
624 bytes = ll_unitdata_ind->sdu.buf[ |
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parents:
diff
changeset
|
625 (ll_unitdata_ind->sdu.o_buf >> 3)] & 0xF1; |
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parents:
diff
changeset
|
626 } |
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parents:
diff
changeset
|
627 else |
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parents:
diff
changeset
|
628 { |
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parents:
diff
changeset
|
629 bm = (T_SACK_BITMAP*)&(ll_unitdata_ind->sdu.buf[ |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
630 (ll_unitdata_ind->sdu.o_buf >> 3)]); |
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parents:
diff
changeset
|
631 bytes = ll_unitdata_ind->sdu.l_buf >> 3; |
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parents:
diff
changeset
|
632 } |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
633 |
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parents:
diff
changeset
|
634 /* |
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parents:
diff
changeset
|
635 * Little Protection |
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parents:
diff
changeset
|
636 */ |
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parents:
diff
changeset
|
637 if ( bytes > S_FRAME_SACK_MAX_CTRL_OCTETS ) |
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parents:
diff
changeset
|
638 { |
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parents:
diff
changeset
|
639 bytes = S_FRAME_SACK_MAX_CTRL_OCTETS; |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
640 TRACE_ERROR ("Illegal SACK bitmap size received"); |
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parents:
diff
changeset
|
641 } |
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parents:
diff
changeset
|
642 |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
643 /* |
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parents:
diff
changeset
|
644 * For each bit, which is set, send an acknowledge to ITX |
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parents:
diff
changeset
|
645 */ |
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parents:
diff
changeset
|
646 for (i = 0; i < bytes; i++) |
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parents:
diff
changeset
|
647 { |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
648 for (n = 7; n >= 0; n--) |
219afcfc6250
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
649 { |
219afcfc6250
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
650 /* |
219afcfc6250
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
651 * first increment rn (must begin with 1) |
219afcfc6250
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
652 */ |
219afcfc6250
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
653 rn++; |
219afcfc6250
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
654 |
219afcfc6250
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
655 /* |
219afcfc6250
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
656 * check if bit is set from MSB to LSB |
219afcfc6250
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
657 */ |
219afcfc6250
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
658 if ( bm->data[i] & (1 << n) ) |
219afcfc6250
src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
659 { |
219afcfc6250
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
660 /* |
219afcfc6250
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
661 * set frame acknowledged |
219afcfc6250
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
662 */ |
219afcfc6250
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
663 sig_irx_itx_ack_ind ( TRUE, (T_FRAME_NUM)(nr + rn)); |
219afcfc6250
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
664 } |
219afcfc6250
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
665 else |
219afcfc6250
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
666 { |
219afcfc6250
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
667 /* |
219afcfc6250
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
668 * mark frame for retransmission |
219afcfc6250
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
669 */ |
219afcfc6250
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
670 sig_irx_itx_ack_ind ( FALSE, (T_FRAME_NUM)(nr + rn)); |
219afcfc6250
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
671 } |
219afcfc6250
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
672 } |
219afcfc6250
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
673 } |
219afcfc6250
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
674 |
219afcfc6250
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
675 /* |
219afcfc6250
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
676 * send L3 data confirmation |
219afcfc6250
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
677 */ |
219afcfc6250
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
678 sig_irx_itx_cnf_l3data_req (); |
219afcfc6250
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
679 |
219afcfc6250
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
680 /* |
219afcfc6250
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
681 * Strip SACK bitmap from I frame SDUs to get clean L3 PDU |
219afcfc6250
src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
682 */ |
219afcfc6250
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
683 if (frame_type == I_FRAME) |
219afcfc6250
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
684 { |
219afcfc6250
src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
685 ll_unitdata_ind->sdu.o_buf += bytes << 3; |
219afcfc6250
src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
686 ll_unitdata_ind->sdu.l_buf -= bytes << 3; |
219afcfc6250
src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
687 } |
219afcfc6250
src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
688 |
219afcfc6250
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
689 } /* irx_handle_sack () */ |
219afcfc6250
src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
690 |
219afcfc6250
src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
691 |
219afcfc6250
src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
692 /* |
219afcfc6250
src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
693 +------------------------------------------------------------------------------ |
219afcfc6250
src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
694 | Function : irx_send_ack |
219afcfc6250
src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
695 +------------------------------------------------------------------------------ |
219afcfc6250
src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
696 | Description : This procedure handles the detection of sequence errors and |
219afcfc6250
src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
697 | the sending of appropriate acknowledgements |
219afcfc6250
src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
698 | |
219afcfc6250
src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
699 | Parameters : |
219afcfc6250
src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
700 | |
219afcfc6250
src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
701 +------------------------------------------------------------------------------ |
219afcfc6250
src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
702 */ |
219afcfc6250
src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
703 GLOBAL void irx_send_ack (T_BIT a_bit) |
219afcfc6250
src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
704 { |
219afcfc6250
src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
705 TRACE_FUNCTION( "irx_send_ack" ); |
219afcfc6250
src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
706 |
219afcfc6250
src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
707 /* |
219afcfc6250
src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
708 * Send S frame depending on last N(S) / V(R) condition |
219afcfc6250
src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
709 */ |
219afcfc6250
src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
710 switch (llc_data->irx->last_ns) |
219afcfc6250
src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
711 { |
219afcfc6250
src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
712 case NS_EQUAL_VR: |
219afcfc6250
src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
713 /* |
219afcfc6250
src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
714 * Send an RR only, if requested |
219afcfc6250
src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
715 */ |
219afcfc6250
src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
716 if (a_bit) |
219afcfc6250
src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
717 { |
219afcfc6250
src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
718 sig_irx_itx_send_rr_req (ABIT_NO_REQ); |
219afcfc6250
src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
719 } |
219afcfc6250
src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
720 else |
219afcfc6250
src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
721 { |
219afcfc6250
src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
722 /* |
219afcfc6250
src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
723 * Trigger ITX to check queue and send frames |
219afcfc6250
src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
724 * This is done inside the other signals, too. |
219afcfc6250
src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
725 */ |
219afcfc6250
src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
726 sig_irx_itx_trigger_ind (); |
219afcfc6250
src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
727 } |
219afcfc6250
src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
728 break; |
219afcfc6250
src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
729 |
219afcfc6250
src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
730 case NS_EQUAL_VR_PLUS_1: |
219afcfc6250
src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
731 /* |
219afcfc6250
src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
732 * Sequence error - one missing |
219afcfc6250
src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
733 */ |
219afcfc6250
src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
734 sig_irx_itx_send_ack_req (ABIT_NO_REQ); |
219afcfc6250
src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
735 break; |
219afcfc6250
src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
736 |
219afcfc6250
src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
737 case NS_NO_SEQUENCE_ERROR: |
219afcfc6250
src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
738 /* |
219afcfc6250
src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
739 * Send an SACK only, if requested |
219afcfc6250
src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
740 */ |
219afcfc6250
src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
741 if (a_bit) |
219afcfc6250
src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
742 { |
219afcfc6250
src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
743 T_SACK_BITMAP bitmap; |
219afcfc6250
src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
744 |
219afcfc6250
src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
745 irx_build_sack_bitmap( &bitmap ); |
219afcfc6250
src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
746 sig_irx_itx_send_sack_req (ABIT_NO_REQ, &bitmap); |
219afcfc6250
src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
747 } |
219afcfc6250
src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
748 else |
219afcfc6250
src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
749 { |
219afcfc6250
src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
750 /* |
219afcfc6250
src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
751 * Trigger ITX to check queue and send frames |
219afcfc6250
src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
752 * This is done inside the other signals, too. |
219afcfc6250
src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
753 */ |
219afcfc6250
src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
754 sig_irx_itx_trigger_ind (); |
219afcfc6250
src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
755 } |
219afcfc6250
src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
756 break; |
219afcfc6250
src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
757 |
219afcfc6250
src/g23m-gprs: initial import from TCS3.2/LoCosto
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758 default: |
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759 /* |
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760 * Sequence error - one or more missing |
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761 */ |
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762 { |
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763 T_SACK_BITMAP bitmap; |
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764 |
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765 irx_build_sack_bitmap( &bitmap ); |
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766 sig_irx_itx_send_sack_req (ABIT_NO_REQ, &bitmap); |
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767 } |
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768 break; |
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769 } |
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770 |
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771 } /* irx_send_ack () */ |
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772 |
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773 |
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774 /* |
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775 +------------------------------------------------------------------------------ |
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776 | Function : irx_send_rnr |
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777 +------------------------------------------------------------------------------ |
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778 | Description : This procedure sends an RNR to ITX |
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779 | |
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780 | Parameters : |
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781 | |
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782 +------------------------------------------------------------------------------ |
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783 */ |
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784 GLOBAL void irx_send_rnr () |
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785 { |
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786 TRACE_FUNCTION( "irx_send_rnr" ); |
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787 |
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788 sig_irx_itx_send_rnr_req (ABIT_NO_REQ); |
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789 |
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Mychaela Falconia <falcon@freecalypso.org>
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790 } /* irx_send_rnr() */ |
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Mychaela Falconia <falcon@freecalypso.org>
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791 |
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Mychaela Falconia <falcon@freecalypso.org>
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792 |