FreeCalypso > hg > fc-magnetite
annotate src/g23m-fad/tcpip/tcpip_dti.c @ 484:a1946652f71c
top README: update for the status of hybrid firmware
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Wed, 20 Jun 2018 08:18:48 +0000 |
parents | 90eb61ecd093 |
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1 /* |
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2 +------------------------------------------------------------------------------ |
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3 | File: tcpip_dti.c |
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4 +------------------------------------------------------------------------------ |
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5 | Copyright 2003 Texas Instruments Berlin, AG |
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6 | All rights reserved. |
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7 | |
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8 | This file is confidential and a trade secret of Texas |
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9 | Instruments Berlin, AG |
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10 | The receipt of or possession of this file does not convey |
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11 | any rights to reproduce or disclose its contents or to |
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12 | manufacture, use, or sell anything it may describe, in |
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13 | whole, or in part, without the specific written consent of |
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14 | Texas Instruments Berlin, AG. |
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15 +----------------------------------------------------------------------------- |
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16 | Purpose : GPF-based TCP/IP's glue layer towards DTI. |
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17 +----------------------------------------------------------------------------- |
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18 */ |
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19 |
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20 |
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21 #define TCPIP_DTI_C |
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22 |
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23 #define ENTITY_TCPIP |
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24 |
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25 /*==== INCLUDES =============================================================*/ |
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26 |
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27 #include <string.h> /* String functions, e. g. strncpy(). */ |
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28 |
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29 #include "typedefs.h" /* Condat data types */ |
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30 #include "vsi.h" /* a lot of macros */ |
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31 #include "custom.h" |
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32 #include "gsm.h" /* a lot of macros */ |
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33 #include "prim.h" /* definitions of used SAP and directions */ |
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34 #include "pei.h" /* PEI interface */ |
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35 #include "tools.h" /* common tools */ |
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36 #include "dti.h" /* DTI library definitions. */ |
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37 #include "tcpip.h" /* global entity definitions */ |
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38 #include "macdef.h" /* PFREE_DESC2() */ |
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39 |
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40 /* RNET includes |
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41 */ |
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42 #include "rv_general.h" |
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43 #include "rnet_api.h" |
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44 #include "rnet_rt_env.h" |
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45 #include "rnet_message.h" |
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46 #include "rnet_rt_i.h" |
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47 |
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48 |
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49 /*==== Local data ===========================================================*/ |
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50 |
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51 |
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52 |
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53 |
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54 /*==== Local utility functions ==============================================*/ |
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55 |
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56 |
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57 |
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58 /*==== Specific event handler functions =====================================*/ |
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59 |
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60 |
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61 /** Handle the respective DTI primitive. These functions simply forward the |
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62 * DTI primitive to the appropriate DTI library function, but with the |
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63 * entity's dti_handle as additional argument. |
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64 * |
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65 * @param dti_* Pointer to the primitive. |
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66 */ |
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67 |
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68 void tcpip_dti_ready_ind(T_DTI2_READY_IND *dti_ready_ind) |
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69 { |
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70 dti_dti_ready_ind(tcpip_data->dti_handle, dti_ready_ind) ; } |
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71 |
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72 void tcpip_dti_data_req(T_DTI2_DATA_REQ *dti_data_req) |
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73 { |
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74 dti_dti_data_req(tcpip_data->dti_handle, dti_data_req) ; } |
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75 |
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76 void tcpip_dti_data_ind(T_DTI2_DATA_IND *dti_data_ind) |
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77 { |
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78 dti_dti_data_ind(tcpip_data->dti_handle, dti_data_ind) ; } |
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79 |
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80 void tcpip_dti_getdata_req(T_DTI2_GETDATA_REQ *dti_getdata_req) |
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81 { |
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82 dti_dti_getdata_req(tcpip_data->dti_handle, dti_getdata_req) ; } |
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83 |
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84 #if defined(_SIMULATION_) |
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85 void tcpip_dti_data_test_ind(T_DTI2_DATA_TEST_IND *dti_data_test_ind) |
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86 { dti_dti_data_test_ind(tcpip_data->dti_handle, dti_data_test_ind) ; } |
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87 |
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88 void tcpip_dti_data_test_req(T_DTI2_DATA_TEST_REQ *dti_data_test_req) |
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89 { dti_dti_data_test_req(tcpip_data->dti_handle, dti_data_test_req) ; } |
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90 #endif /* _SIMULATION_ */ |
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91 |
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92 void tcpip_dti_connect_req(T_DTI2_CONNECT_REQ *dti_connect_req ) |
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93 { |
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94 dti_dti_connect_req(tcpip_data->dti_handle, dti_connect_req) ; } |
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95 |
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96 void tcpip_dti_disconnect_ind(T_DTI2_DISCONNECT_IND *dti_disconnect_ind) |
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97 { |
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98 dti_dti_disconnect_ind(tcpip_data->dti_handle, dti_disconnect_ind) ; } |
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99 |
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100 void tcpip_dti_connect_cnf(T_DTI2_CONNECT_CNF *dti_connect_cnf) |
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101 { |
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102 dti_dti_connect_cnf(tcpip_data->dti_handle, dti_connect_cnf) ; } |
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103 |
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104 void tcpip_dti_connect_ind(T_DTI2_CONNECT_IND *dti_connect_ind) |
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105 { |
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106 dti_dti_connect_ind(tcpip_data->dti_handle, dti_connect_ind) ; } |
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107 |
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108 void tcpip_dti_connect_res(T_DTI2_CONNECT_RES *dti_connect_res) |
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109 { |
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110 dti_dti_connect_res(tcpip_data->dti_handle, dti_connect_res) ; } |
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111 |
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112 void tcpip_dti_disconnect_req(T_DTI2_DISCONNECT_REQ *dti_disconnect_req) |
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113 { |
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114 dti_dti_disconnect_req(tcpip_data->dti_handle, dti_disconnect_req) ; } |
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115 |
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116 |
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117 |
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118 |
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119 /*==== Callback functions ===================================================*/ |
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120 |
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121 |
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122 /** Handle a "DTI connection opened" indication; send a DTI confirmation to |
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123 * the ACI. |
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124 * |
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125 * @param interfac To lower layer or to higher layer. |
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126 * @param channel Number of connection to other layer. |
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127 */ |
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128 static void tcpip_dti_connection_opened_ind(U8 interfac, U8 channel) |
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129 { |
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130 TRACE_FUNCTION("tcpip_dti_connection_opened_ind()") ; |
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131 |
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132 |
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133 switch (interfac) |
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134 { |
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135 case TCPIP_DTI_TO_LOWER_LAYER: |
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136 dti_start(tcpip_data->dti_handle, 0, interfac, channel) ; |
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137 tcpip_dti_cnf(TCPIP_CONNECT_DTI, tcpip_data->ll[channel].link_id) ; |
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138 break ; |
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139 case TCPIP_DTI_TO_HIGHER_LAYER: |
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140 TRACE_ERROR("dti_connection_opened_ind: DTI to UL not yet implemented") ; |
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141 break ; |
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142 default: |
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143 TRACE_ERROR("DTI connection opened: unknown interface") ; |
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144 break ; |
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145 } |
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146 } |
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147 |
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148 |
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149 /** Handle a "DTI connection closed" indication; send a DTI confirmation to |
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150 * the ACI and mark the connection as dead. |
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151 * |
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152 * @param interfac To lower layer or to higher layer. |
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153 * @param channel Number of connection to other layer. |
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154 */ |
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155 static void tcpip_dti_connection_closed_ind(U8 interfac, U8 channel) |
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156 { |
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157 TRACE_FUNCTION("tcpip_dti_connection_closed_ind()") ; |
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158 |
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159 |
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160 switch (interfac) |
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161 { |
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162 case TCPIP_DTI_TO_LOWER_LAYER: |
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163 tcpip_dti_cnf(TCPIP_DISCONNECT_DTI, tcpip_data->ll[channel].link_id) ; |
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164 tcpip_data->ll[channel].link_id = 0 ; |
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165 break ; |
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166 case TCPIP_DTI_TO_HIGHER_LAYER: |
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167 TRACE_ERROR("dti_connection_closed_ind: DTI to UL not yet implemented") ; |
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168 break ; |
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169 default: |
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170 TRACE_ERROR("DTI connection opened: unknown interface") ; |
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171 break ; |
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172 } |
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173 } |
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174 |
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175 |
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176 /** Handle an incoming DTI data indication primitive from the lower layer; |
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177 * relay data to the IP input function. |
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178 * |
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179 * @param dti_data_ind Pointer to the primitive. |
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180 */ |
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181 static void tcpip_ll_dti_data_ind(T_DTI2_DATA_IND *dti_data_ind) |
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182 { |
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183 NGbuf *bufp ; |
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184 T_desc2 *ddesc ; /* DTI2 data descriptor. */ |
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185 int n_copied ; /* Number of bytes already copied. */ |
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186 |
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187 TRACE_FUNCTION("tcpip_ll_dti_data_ind()") ; |
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188 if (dti_data_ind->desc_list2.list_len <= TCPIP_DEFAULT_MTU_SIZE) |
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189 { |
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190 ngBufAlloc(bufp) ; /* This is macro that assigns to bufp. */ |
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191 if (bufp) /* If we got a buffer... */ |
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192 { |
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193 bufp->buf_datalen = dti_data_ind->desc_list2.list_len ; |
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194 bufp->buf_next = NULL ; |
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195 bufp->buf_iov = NULL ; |
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196 bufp->buf_iovcnt = 0 ; |
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197 bufp->buf_flags = NG_PROTO_IP ; |
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198 bufp->buf_datap = ((NGubyte *) bufp) + ngBufDataOffset; |
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199 |
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200 /* Copy data to buffer. */ |
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201 for (ddesc = (T_desc2 *) dti_data_ind->desc_list2.first, n_copied = 0; |
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202 ddesc NEQ NULL; |
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203 ddesc = (T_desc2 *) ddesc->next) |
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204 { |
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205 memcpy(bufp->buf_datap + n_copied, |
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206 ddesc->buffer + ddesc->offset, |
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207 ddesc->len) ; |
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208 n_copied += ddesc->len ; |
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209 } |
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210 /* Finally, send to IP. */ |
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211 ngIfGenInput(&rnet_rt_env_ctrl_blk_p->ifnet_dti.dti_ifnet, bufp, 1) ; |
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212 } |
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213 else |
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214 { |
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215 TRACE_ERROR("ngBufAlloc() failed for incoming from DTI") ; |
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216 } |
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217 } |
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218 else |
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219 { |
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220 /* Packet too big -> drop it. */ |
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221 TRACE_ERROR("incoming IP packet > MTU size") ; |
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222 } |
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223 |
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224 /* TRACE_EVENT("PFREE_DESC2(dti_data_ind) ...") ; */ |
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225 PFREE_DESC2(dti_data_ind) ; |
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226 /* TRACE_EVENT("...Done") ; */ |
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227 } |
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228 |
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229 |
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230 /** Handle an incoming DTI data indication primitive from the higher layer; |
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231 * relay data to the socket send function. |
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232 * |
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233 * @param dti_data_ind Pointer to the primitive. |
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234 */ |
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235 static void tcpip_hl_dti_data_ind(T_DTI2_DATA_IND *dti_data_ind) |
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236 { |
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237 TRACE_FUNCTION("tcpip_hl_dti_data_ind()") ; |
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238 |
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239 |
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240 /* This will be implemented later for SAT class E over TCP/IP. */ |
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241 TRACE_ERROR("DTI_DATA_IND: DTI to higher layer not yet implemented") ; |
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242 PFREE(dti_data_ind) ; |
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243 } |
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244 |
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245 |
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246 /** Act on DTI's indication that the lower-layer send buffer is full. |
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247 * |
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248 * @param channel Channel identifier. |
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249 */ |
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250 static void tcpip_ll_dti_buffer_full_ind(U8 channel) |
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251 { |
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252 TRACE_FUNCTION("tcpip_ll_dti_buffer_full_ind()") ; |
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253 |
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254 /* Make a note of this; don't send any data from TCP/IP if this is set. */ |
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255 TRACE_EVENT("switch flow control towards lower layer to xoff") ; |
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256 rnet_rt_env_ctrl_blk_p->ifnet_dti.dti_ifnet.if_flags |= NG_IFF_OACTIVE ; |
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257 tcpip_data->ll[channel].flowstat_ul = TCPIP_FLOWCTL_XOFF ; |
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258 } |
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259 |
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260 |
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261 /** Act on DTI's indication that the higher-layer send buffer is full. |
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262 * |
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263 * @param channel Channel identifier. |
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264 */ |
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265 static void tcpip_hl_dti_buffer_full_ind(U8 channel) |
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266 { |
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267 TRACE_FUNCTION("tcpip_hl_dti_buffer_full_ind()") ; |
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268 |
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269 |
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270 /* This will be implemented later for SAT class E over TCP/IP. */ |
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271 TRACE_ERROR("DTI buffer full: DTI to higher layer not yet implemented") ; |
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272 } |
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273 |
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274 |
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275 /** Act on DTI's indication that the lower-layer send buffer is ready for |
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276 * sending again. |
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277 * |
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278 * @param channel Channel identifier. |
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279 */ |
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280 static void tcpip_ll_dti_buffer_ready_ind(U8 channel) |
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281 { |
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282 TRACE_FUNCTION("tcpip_ll_dti_buffer_ready_ind()") ; |
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283 |
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284 |
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285 /* Note this; enable fetching data from TCP/IP again. */ |
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286 TRACE_EVENT("switch flow control towards lower layer to xon") ; |
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287 rnet_rt_env_ctrl_blk_p->ifnet_dti.dti_ifnet.if_flags &= ~NG_IFF_OACTIVE; |
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288 tcpip_data->ll[channel].flowstat_ul = TCPIP_FLOWCTL_XON ; |
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289 } |
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290 |
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291 |
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292 /** Act on DTI's indication that the higher-layer send buffer is ready for |
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293 * sending again. |
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294 * |
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295 * @param channel Channel identifier. |
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296 */ |
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297 static void tcpip_hl_dti_buffer_ready_ind(U8 channel) |
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298 { |
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299 TRACE_FUNCTION("tcpip_hl_dti_buffer_ready_ind()") ; |
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300 |
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301 |
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302 /* This will be implemented later for SAT class E over TCP/IP. */ |
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303 TRACE_ERROR("DTI buffer ready: DTI to higher layer not yet implemented") ; |
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304 } |
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305 |
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306 |
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307 /** Central DTI callback dispatcher function according to dti.h. |
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308 * |
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309 * @param instance Instance number (unused in TCPIP). |
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310 * @param interfac Interface number (higher or lower layer). |
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311 * @param channel Channel number (to be used for lower layer in the |
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312 * future). |
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313 * @param reason Code for the event to be handled. |
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314 * @param dti_data_ind Data primitive if present. |
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315 */ |
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316 void tcpip_dti_callback(U8 instance, U8 interfac, U8 channel, U8 reason, |
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317 T_DTI2_DATA_IND *dti_data_ind) |
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318 { |
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319 TRACE_FUNCTION("tcpip_dti_callback()") ; |
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320 |
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321 |
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322 /* We don't use the instance parameter at all, so it is not passed to the |
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323 * final handler functions. */ |
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324 |
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325 switch (reason) |
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326 { |
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327 case DTI_REASON_CONNECTION_OPENED: /* DTI connect */ |
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328 tcpip_dti_connection_opened_ind(interfac, channel) ; |
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329 break; |
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330 case DTI_REASON_CONNECTION_CLOSED: /* DTI disconnect */ |
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331 tcpip_dti_connection_closed_ind(interfac, channel) ; |
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332 break; |
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333 case DTI_REASON_DATA_RECEIVED: |
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334 ((interfac EQ TCPIP_DTI_TO_LOWER_LAYER) |
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335 ? tcpip_ll_dti_data_ind : tcpip_hl_dti_data_ind)(dti_data_ind); |
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336 break; |
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337 case DTI_REASON_TX_BUFFER_FULL: |
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338 ((interfac EQ TCPIP_DTI_TO_LOWER_LAYER) |
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339 ? tcpip_ll_dti_buffer_full_ind |
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340 : tcpip_hl_dti_buffer_full_ind)(channel) ; |
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341 break; |
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342 case DTI_REASON_TX_BUFFER_READY: |
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343 ((interfac EQ TCPIP_DTI_TO_LOWER_LAYER) |
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344 ? tcpip_ll_dti_buffer_ready_ind |
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345 : tcpip_hl_dti_buffer_ready_ind)(channel) ; |
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346 break; |
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347 default: |
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348 TRACE_ERROR("bogus DTI reason code"); |
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349 break; |
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350 } /* end switch */ |
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351 } /* tcpip_dti_callback() */ |
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352 |
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353 |
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354 |
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355 /*==== Service functions ====================================================*/ |
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356 |
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357 |
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358 /** Send the data buffer with the specified length to the lower layer. The |
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359 * data buffer will be freed by the caller. |
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360 * |
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361 * @param data Pointer to the data. |
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362 * @param length Length of the data. |
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363 */ |
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364 void tcpip_dti_send_data_ll(U8 *data, U16 length) |
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365 { |
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366 T_desc2 *ddesc ; /* Pointer to DTI descriptor. */ |
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367 |
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368 TRACE_FUNCTION("tcpip_dti_send_data_ll()") ; |
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369 |
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370 { |
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371 PALLOC(dind, DTI2_DATA_IND) ; |
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372 MALLOC(ddesc, sizeof(T_desc2) - 1 + length) ; |
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373 |
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374 dind->desc_list2.list_len = length ; |
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375 dind->desc_list2.first = (U32) ddesc ; |
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376 ddesc->next = NULL ; |
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377 ddesc->offset = 0 ; |
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378 ddesc->len = length ; |
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379 ddesc->size = length ; |
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380 memcpy((U8 *) ddesc->buffer, data, length) ; |
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381 |
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382 dind->parameters.st_lines.st_line_sa = DTI_SA_ON; |
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383 dind->parameters.st_lines.st_line_sb = DTI_SB_ON; |
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384 dind->parameters.st_lines.st_flow = DTI_FLOW_ON; |
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385 dind->parameters.st_lines.st_break_len = DTI_BREAK_OFF; |
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|
386 |
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387 dind->link_id = 0; |
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388 dind->parameters.p_id = DTI_PID_IP; |
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|
389 |
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390 |
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391 #if 0 /* Keep these traces in mind, but not in the code right now. */ |
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392 /* tlu: content send to SNDCP */ |
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393 TRACE_EVENT_P1("!!!!content (tlu) data send to SNDCP (%d bytes)", length); |
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394 for (i=0; i<length; i++) |
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395 { |
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396 TRACE_EVENT_P1("cont: %02X", data[i]); |
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397 } |
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398 #endif /* 0 */ |
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399 |
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400 dti_send_data(tcpip_data->dti_handle, 0, |
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401 TCPIP_DTI_TO_LOWER_LAYER, 0, dind) ; |
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402 } |
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403 } |
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404 |
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405 |
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406 |
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407 /*==== Primitive sender functions ===========================================*/ |
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408 |
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409 |
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410 |
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411 /*==== Primitive handler functions ==========================================*/ |
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412 |
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413 |
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414 /* EOF */ |