FreeCalypso > hg > fc-magnetite
annotate src/g23m-fad/ppp/ppp_ftxs.c @ 634:6edd9be81b94
doc/Leonardo-target: update for Tango and Caramel
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Sat, 04 Jan 2020 20:48:07 +0000 |
parents | 90eb61ecd093 |
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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 PPP 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 (FTX-statemachine) |
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20 +----------------------------------------------------------------------------- |
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21 */ |
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22 |
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23 #define ENTITY_PPP |
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24 |
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25 /*==== INCLUDES =============================================================*/ |
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26 |
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27 #include "typedefs.h" /* to get Condat data types */ |
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28 #include "vsi.h" /* to get a lot of macros */ |
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29 #include "macdef.h" /* to get a lot of macros */ |
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30 #include "custom.h" /* to get a lot of macros */ |
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31 #include "gsm.h" /* to get a lot of macros */ |
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32 /*lint -efile(766,cnf_ppp.h) */ |
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33 #include "cnf_ppp.h" /* to get cnf-definitions */ |
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34 /*lint -efile(766,mon_ppp.h) */ |
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35 #include "mon_ppp.h" /* to get mon-definitions */ |
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36 #include "prim.h" /* to get the definitions of used SAP and directions */ |
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37 #include "dti.h" /* to get the DTILIB definitions */ |
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38 #include "ppp.h" /* to get the global entity definitions */ |
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39 |
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40 #include "ppp_dti.h" /* to get local DTI definitions */ |
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41 #include "ppp_ftxf.h" /* to get function interface from ftx */ |
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42 #include "ppp_arbf.h" /* to get function interface from arb */ |
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43 #include "ppp_prxs.h" /* to get signal interface from prx */ |
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44 #include "ppp_ptxs.h" /* to get signal interface from prx */ |
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45 |
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46 /*==== CONST ================================================================*/ |
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47 |
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48 /*==== LOCAL VARS ===========================================================*/ |
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49 |
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50 /*==== PRIVATE FUNCTIONS ====================================================*/ |
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51 |
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52 /*==== PUBLIC FUNCTIONS =====================================================*/ |
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53 |
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54 /* |
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55 +------------------------------------------------------------------------------ |
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56 | Function : sig_arb_ftx_parameters_req |
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57 +------------------------------------------------------------------------------ |
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58 | Description : Handles the internal signal SIG_ARB_FTX_PARAMETERS_REQ. It sets |
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59 | the parameter of FTX service. |
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60 | |
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61 | Parameters : accm - Async Control Character Map |
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62 | pfc - Protocol Field Compression |
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63 | acfc - Address and Control Field Compression |
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64 | |
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65 +------------------------------------------------------------------------------ |
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66 */ |
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67 GLOBAL void sig_arb_ftx_parameters_req (ULONG accm, UBYTE pfc, UBYTE acfc) |
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68 { |
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69 UBYTE i; |
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70 |
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71 TRACE_ISIG( "sig_arb_ftx_parameters_req" ); |
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72 |
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73 switch( GET_STATE( PPP_SERVICE_FTX ) ) |
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74 { |
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75 case FTX_READY: |
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76 case FTX_BLOCKED_DTI_FULL: |
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77 case FTX_READY_DTI_FULL: |
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78 case FTX_BLOCKED: |
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79 case FTX_DEAD: |
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80 case FTX_DEAD_START_FLOW: |
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81 /* |
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82 * store accm in look up table |
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83 */ |
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84 for(i=0; i < 0x20; i++) |
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85 { |
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86 ppp_data->ftx.accmtab[i] = (accm & (1UL << i)) ? 0xFF : 0x00; |
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87 } |
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88 ppp_data->ftx.pfc = pfc; |
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89 ppp_data->ftx.acfc = acfc; |
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90 break; |
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91 |
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92 default: |
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93 TRACE_ERROR( "SIG_ARB_FTX_PARAMETERS_REQ unexpected" ); |
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94 break; |
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95 } |
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96 } /* sig_arb_ftx_parameters_req() */ |
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97 |
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98 |
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99 |
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100 /* |
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101 +------------------------------------------------------------------------------ |
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102 | Function : sig_arb_ftx_dead_mode_req |
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103 +------------------------------------------------------------------------------ |
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104 | Description : Handles the internal signal SIG_ARB_FTX_DEAD_MODE_REQ. It stops |
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105 | any data tranfer and releases all still to send HDLC frames. |
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106 | |
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107 | Parameters : no parameters |
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108 | |
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109 +------------------------------------------------------------------------------ |
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110 */ |
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111 GLOBAL void sig_arb_ftx_dead_mode_req () |
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112 { |
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113 |
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114 TRACE_ISIG( "sig_arb_ftx_dead_mode_req" ); |
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115 |
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116 switch( GET_STATE( PPP_SERVICE_FTX ) ) |
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117 { |
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118 case FTX_READY: |
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119 case FTX_TRANSPARENT: |
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120 sig_ftx_prx_stop_flow_req(); |
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121 SET_STATE( PPP_SERVICE_FTX, FTX_DEAD ); |
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122 break; |
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123 |
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124 case FTX_BLOCKED_DTI_FULL: |
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125 case FTX_BLOCKED: |
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126 case FTX_READY_DTI_FULL: |
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127 SET_STATE( PPP_SERVICE_FTX, FTX_DEAD ); |
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128 break; |
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129 |
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130 default: |
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131 TRACE_ERROR( "SIG_ARB_FTX_DEAD_MODE_REQ unexpected" ); |
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132 break; |
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133 } |
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134 /* |
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135 * Free also any buffered packet (awaiting the TE to wake up) |
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136 * and reset PRX |
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137 */ |
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138 sig_ftx_prx_dead_mode_req(); |
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139 } /* sig_arb_ftx_dead_mode_req() */ |
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140 |
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141 |
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142 |
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143 /* |
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144 +------------------------------------------------------------------------------ |
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145 | Function : sig_arb_ftx_blocked_mode_req |
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146 +------------------------------------------------------------------------------ |
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147 | Description : Handles the internal signal SIG_ARB_FTX_BLOCKED_MODE_REQ. That |
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148 | means PRX-FTX data transfer is not allowed, but ARB can still |
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149 | send packets. |
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150 | |
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151 | Parameters : no parameters |
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152 | |
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153 +------------------------------------------------------------------------------ |
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154 */ |
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155 GLOBAL void sig_arb_ftx_blocked_mode_req () |
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156 { |
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157 TRACE_ISIG( "sig_arb_ftx_blocked_mode_req" ); |
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158 |
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159 switch( GET_STATE( PPP_SERVICE_FTX ) ) |
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160 { |
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161 case FTX_DEAD: |
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162 /* |
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163 * Set FTX to blocked and do _not_ start data flow from prx |
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164 * since ARB wants to perform some action first. |
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165 * Mark FTX DTI queue as full until according tx_buffer_ready signal |
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166 * is received. This is necessary since FTX may be started without an |
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167 * open dti channel towards peer layer. |
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168 */ |
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169 SET_STATE( PPP_SERVICE_FTX, FTX_BLOCKED_DTI_FULL); |
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170 sig_ftx_prx_ready_mode_req(); |
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171 break; |
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172 |
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173 case FTX_DEAD_START_FLOW: |
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174 /* |
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175 * Set FTX to blocked and do _not_ start data flow from prx |
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176 * since ARB wants to perform some action first. |
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177 * tx_buffer_ready was already received, so do not mark DTI as full |
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178 */ |
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179 SET_STATE( PPP_SERVICE_FTX, FTX_BLOCKED); |
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180 sig_ftx_prx_ready_mode_req(); |
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181 break; |
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182 |
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183 case FTX_READY_DTI_FULL: |
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184 SET_STATE( PPP_SERVICE_FTX, FTX_BLOCKED_DTI_FULL ); |
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185 break; |
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186 |
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187 case FTX_READY: |
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188 SET_STATE( PPP_SERVICE_FTX, FTX_BLOCKED ); |
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189 sig_ftx_prx_stop_flow_req(); |
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190 break; |
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191 |
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192 case FTX_TRANSPARENT: |
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193 SET_STATE( PPP_SERVICE_FTX, FTX_TRANSPARENT_DTI_FULL ); |
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194 sig_ftx_prx_stop_flow_req(); |
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195 break; |
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196 |
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197 default: |
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198 TRACE_ERROR( "SIG_ARB_FTX_BLOCKED_MODE_REQ unexpected" ); |
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199 break; |
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200 } |
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201 } /* sig_arb_ftx_blocked_mode_req() */ |
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202 |
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203 /* |
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204 +------------------------------------------------------------------------------ |
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205 | Function : sig_arb_ftx_ready_mode_req |
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206 +------------------------------------------------------------------------------ |
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207 | Description : Handles the internal signal SIG_ARB_FTX_READY_MODE_REQ. It |
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208 | starts PRX-FTX data transfer. |
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209 | |
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210 | Parameters : no parameters |
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211 | |
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212 +------------------------------------------------------------------------------ |
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213 */ |
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214 GLOBAL void sig_arb_ftx_ready_mode_req () |
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215 { |
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216 TRACE_ISIG( "sig_arb_ftx_ready_mode_req" ); |
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217 |
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218 switch( GET_STATE( PPP_SERVICE_FTX ) ) |
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219 { |
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220 /* |
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221 * Tranistion from FTX_DEAD means there is a newly opened dti connection |
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222 * with empty buffers so starting the data flow is the right thing to |
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223 * do here |
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224 */ |
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225 case FTX_DEAD_START_FLOW: |
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226 SET_STATE( PPP_SERVICE_FTX, FTX_READY ); |
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227 sig_ftx_prx_ready_mode_req(); |
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228 sig_ftx_prx_start_flow_req(); |
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229 sig_ftx_ptx_buffer_ready_ind(); |
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230 break; |
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231 |
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232 case FTX_DEAD: |
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233 SET_STATE( PPP_SERVICE_FTX, FTX_READY_DTI_FULL ); |
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234 sig_ftx_prx_ready_mode_req(); |
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235 break; |
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236 |
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237 case FTX_BLOCKED: |
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238 SET_STATE( PPP_SERVICE_FTX, FTX_READY ); |
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239 sig_ftx_prx_start_flow_req(); |
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240 break; |
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241 |
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242 case FTX_TRANSPARENT_DTI_FULL: |
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243 SET_STATE( PPP_SERVICE_FTX, FTX_TRANSPARENT ); |
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244 sig_ftx_prx_start_flow_req(); |
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245 break; |
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246 |
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247 case FTX_BLOCKED_DTI_FULL: |
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248 /* now waiting for dti */ |
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249 SET_STATE( PPP_SERVICE_FTX, FTX_READY_DTI_FULL); |
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250 break; |
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251 |
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252 case FTX_READY: |
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253 case FTX_TRANSPARENT: |
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254 /* already in the requested state */ |
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255 break; |
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256 |
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257 default: |
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258 TRACE_ERROR( "SIG_ARB_FTX_READY_MODE_REQ unexpected" ); |
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259 break; |
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260 } |
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261 } /* sig_arb_ftx_ready_mode_req() */ |
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262 |
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263 |
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264 /* |
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265 +------------------------------------------------------------------------------ |
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266 | Function : sig_arb_ftx_transparent_mode_req |
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267 +------------------------------------------------------------------------------ |
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268 | Description : Handles the internal signal SIG_ARB_FTX_TRANSPARENT_MODE_REQ. |
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269 | It starts PRX-FTX transparent data transfer. That means we |
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270 | expect PPP frames from PRX and check just for the start and end |
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271 | HDLC flag. |
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272 | |
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273 | Parameters : no parameters |
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274 | |
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275 +------------------------------------------------------------------------------ |
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276 */ |
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277 GLOBAL void sig_arb_ftx_transparent_mode_req () |
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278 { |
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279 TRACE_ISIG( "sig_arb_ftx_transparent_mode_req" ); |
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280 |
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281 switch( GET_STATE( PPP_SERVICE_FTX ) ) |
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282 { |
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283 case FTX_DEAD: |
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284 case FTX_DEAD_START_FLOW: |
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285 /* |
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286 * Set ftx to transparent mode and enable incoming data flow. |
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287 * The dti connection has been newly opened so that its buffers |
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288 * are empty and data can be received |
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289 */ |
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290 SET_STATE( PPP_SERVICE_FTX, FTX_TRANSPARENT ); |
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291 sig_ftx_prx_ready_mode_req(); |
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292 sig_ftx_prx_start_flow_req(); |
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293 sig_ftx_ptx_buffer_ready_ind(); |
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294 break; |
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295 |
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296 default: |
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297 TRACE_ERROR( "SIG_ARB_FTX_TRANSPARENT_MODE_REQ unexpected" ); |
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298 break; |
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299 } |
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300 } /* sig_arb_ftx_transparent_mode_req() */ |
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301 |
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302 /* |
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303 +------------------------------------------------------------------------------ |
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304 | Function : sig_any_ftx_packet_req |
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305 +------------------------------------------------------------------------------ |
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306 | Description : Handles the internal signal SIG_ANY_FTX_PACKET_REQ. It creates |
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307 | an HDLC frame and sends it if possible or stores it in the send |
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308 | queue. |
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309 | |
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310 | Parameters : ptype - type of packet |
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311 | packet - pointer to a generic data descriptor |
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312 | |
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313 +------------------------------------------------------------------------------ |
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314 */ |
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315 GLOBAL void sig_any_ftx_packet_req (USHORT ptype, T_desc2* packet) |
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316 { |
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317 TRACE_ISIG( "sig_any_ftx_packet_req" ); |
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318 |
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319 switch( GET_STATE( PPP_SERVICE_FTX ) ) |
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320 { |
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321 case FTX_READY: |
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322 case FTX_BLOCKED_DTI_FULL: |
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323 case FTX_BLOCKED: |
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324 case FTX_READY_DTI_FULL: |
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325 { |
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326 /* |
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327 * create frame and send it |
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328 */ |
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329 PALLOC_DESC2 (dti_data_ind, DTI2_DATA_IND); |
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330 |
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331 ftx_get_frame (ptype, packet, &dti_data_ind->desc_list2); |
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332 |
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333 sig_any_dti_data_ind(ppp_data->ppphDTI, |
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334 dti_data_ind, |
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335 PPP_INSTANCE, PEER_LAYER, |
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336 PEER_CHANNEL, DTI_PID_UOS); |
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337 break; |
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338 } |
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339 |
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340 case FTX_TRANSPARENT: |
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341 /* |
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342 * check frame and send it |
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343 */ |
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344 { |
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345 PALLOC_DESC2 (dti_data_ind, DTI2_DATA_IND); |
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346 dti_data_ind->desc_list2.first = (ULONG)packet; |
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347 ftx_check_frame (&dti_data_ind->desc_list2); |
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348 |
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349 sig_any_dti_data_ind(ppp_data->ppphDTI, |
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350 dti_data_ind, |
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351 PPP_INSTANCE, PEER_LAYER, |
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352 PEER_CHANNEL, DTI_PID_UOS); |
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353 } |
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354 break; |
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355 |
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356 default: |
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357 TRACE_ERROR( "SIG_ANY_FTX_PACKET_REQ unexpected" ); |
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358 arb_discard_packet(packet); |
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|
359 break; |
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360 } |
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361 } /* sig_any_ftx_packet_req() */ |
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362 |
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363 /* |
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|
364 +------------------------------------------------------------------------------ |
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365 | Function : sig_dti_ftx_tx_buffer_full_ind |
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|
366 +------------------------------------------------------------------------------ |
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367 | Description : This function handle the signal sig_dti_ftx_tx_buffer_full_ind |
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368 | |
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369 | Parameters : no parameters |
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370 | |
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|
371 +------------------------------------------------------------------------------ |
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372 */ |
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373 |
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374 GLOBAL void sig_dti_ftx_tx_buffer_full_ind () |
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375 { |
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376 TRACE_FUNCTION ("sig_dti_ftx_tx_buffer_full_ind()"); |
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|
377 |
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378 switch( GET_STATE( PPP_SERVICE_FTX ) ) |
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|
379 { |
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|
380 case FTX_READY: |
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|
381 SET_STATE( PPP_SERVICE_FTX, FTX_READY_DTI_FULL ); |
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|
382 sig_ftx_prx_stop_flow_req(); |
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|
383 sig_ftx_ptx_buffer_full_ind(); |
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parents:
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|
384 break; |
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parents:
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|
385 |
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|
386 case FTX_TRANSPARENT: |
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parents:
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|
387 SET_STATE( PPP_SERVICE_FTX, FTX_TRANSPARENT_DTI_FULL ); |
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|
388 sig_ftx_prx_stop_flow_req(); |
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|
389 sig_ftx_ptx_buffer_full_ind(); |
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parents:
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changeset
|
390 break; |
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|
391 |
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|
392 case FTX_BLOCKED: |
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parents:
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|
393 /* now both ARB and dtilib want FTX to block */ |
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|
394 SET_STATE( PPP_SERVICE_FTX, FTX_BLOCKED_DTI_FULL ); |
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|
395 sig_ftx_ptx_buffer_full_ind(); |
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parents:
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|
396 break; |
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parents:
diff
changeset
|
397 |
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|
398 case FTX_BLOCKED_DTI_FULL: |
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parents:
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|
399 case FTX_READY_DTI_FULL: |
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parents:
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|
400 case FTX_TRANSPARENT_DTI_FULL: |
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parents:
diff
changeset
|
401 /* prx has already been blocked, do nothing */ |
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parents:
diff
changeset
|
402 break; |
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parents:
diff
changeset
|
403 |
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parents:
diff
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|
404 case FTX_DEAD_START_FLOW: |
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parents:
diff
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|
405 SET_STATE( PPP_SERVICE_FTX, FTX_DEAD ); |
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parents:
diff
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|
406 break; |
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parents:
diff
changeset
|
407 |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
408 default: |
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parents:
diff
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|
409 TRACE_ERROR("Wrong state"); |
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parents:
diff
changeset
|
410 break; |
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parents:
diff
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|
411 } |
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parents:
diff
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|
412 } /* sig_dti_ftx_tx_buffer_full_ind() */ |
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parents:
diff
changeset
|
413 |
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parents:
diff
changeset
|
414 |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
415 |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
416 /* |
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parents:
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|
417 +------------------------------------------------------------------------------ |
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|
418 | Function : sig_dti_ftx_tx_buffer_ready_ind |
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parents:
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|
419 +------------------------------------------------------------------------------ |
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420 | Description : Handles the signal sig_dti_ftx_tx_buffer_ready_ind |
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parents:
diff
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|
421 | |
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parents:
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|
422 | Parameters : no parameter |
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parents:
diff
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|
423 | |
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parents:
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|
424 +------------------------------------------------------------------------------ |
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parents:
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|
425 */ |
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parents:
diff
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|
426 GLOBAL void sig_dti_ftx_tx_buffer_ready_ind () |
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427 { |
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428 TRACE_FUNCTION( "sig_dti_ftx_tx_buffer_ready_ind" ); |
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429 |
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430 switch( GET_STATE( PPP_SERVICE_FTX ) ) |
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431 { |
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Mychaela Falconia <falcon@freecalypso.org>
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432 case FTX_BLOCKED_DTI_FULL: |
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433 SET_STATE( PPP_SERVICE_FTX, FTX_BLOCKED ); |
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434 sig_ftx_ptx_buffer_ready_ind(); |
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435 break; |
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436 |
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437 case FTX_READY_DTI_FULL: |
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438 SET_STATE( PPP_SERVICE_FTX, FTX_READY ); |
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439 sig_ftx_prx_start_flow_req(); |
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440 sig_ftx_ptx_buffer_ready_ind(); |
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441 break; |
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442 |
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Mychaela Falconia <falcon@freecalypso.org>
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443 case FTX_TRANSPARENT_DTI_FULL: |
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444 SET_STATE( PPP_SERVICE_FTX, FTX_TRANSPARENT ); |
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parents:
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445 sig_ftx_prx_start_flow_req(); |
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446 sig_ftx_ptx_buffer_ready_ind(); |
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parents:
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447 break; |
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parents:
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448 |
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Mychaela Falconia <falcon@freecalypso.org>
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449 case FTX_DEAD: |
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450 SET_STATE( PPP_SERVICE_FTX, FTX_DEAD_START_FLOW ); |
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451 /* wait for sig_arb_ftx_blocked/ready/transparent_mode_req */ |
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452 break; |
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parents:
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453 |
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parents:
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454 case FTX_READY: |
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parents:
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455 case FTX_TRANSPARENT: |
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parents:
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456 /* already in the requested state */ |
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Mychaela Falconia <falcon@freecalypso.org>
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457 break; |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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458 |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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459 default: |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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460 TRACE_ERROR( "Signal unexpected" ); |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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461 break; |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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462 } |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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463 } /* sig_dti_ftx_tx_buffer_ready_ind() */ |