FreeCalypso > hg > fc-selenite
annotate src/g23m-gprs/llc/llc_uitxf.c @ 158:8fe0cde2fd79
doc/Compiling: update for SE J100 target and fc-host-tools-r10
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Sun, 17 Mar 2019 07:20:28 +0000 |
parents | d393cd9bb723 |
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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 (UITX-statemachine) |
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20 +----------------------------------------------------------------------------- |
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21 */ |
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22 |
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23 #ifndef LLC_UITXF_C |
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24 #define LLC_UITXF_C |
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25 #endif |
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26 |
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27 #define ENTITY_LLC |
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28 |
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29 /*==== INCLUDES =============================================================*/ |
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30 |
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31 #include "typedefs.h" /* to get Condat data types */ |
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32 #include "vsi.h" /* to get a lot of macros */ |
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33 #include "macdef.h" |
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34 #include "gprs.h" |
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35 #include "gsm.h" /* to get a lot of macros */ |
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36 #include "cnf_llc.h" /* to get cnf-definitions */ |
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37 #include "mon_llc.h" /* to get mon-definitions */ |
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38 #include "prim.h" /* to get the definitions of used SAP and directions */ |
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39 #include "llc.h" /* to get the global entity definitions */ |
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40 |
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41 /*==== CONST ================================================================*/ |
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42 |
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43 /*==== LOCAL VARS ===========================================================*/ |
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44 |
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45 /*==== PRIVATE FUNCTIONS ====================================================*/ |
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46 |
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47 /*==== PUBLIC FUNCTIONS =====================================================*/ |
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48 |
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49 |
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50 |
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51 /* |
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52 +------------------------------------------------------------------------------ |
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53 | Function : uitx_init |
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54 +------------------------------------------------------------------------------ |
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55 | Description : This procedure initialises all necessary variables of |
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56 | ui_frames_tx for all SAPIs. |
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57 | |
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58 | Parameters : |
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59 | |
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60 +------------------------------------------------------------------------------ |
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61 */ |
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62 GLOBAL void uitx_init (void) |
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63 { |
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64 TRACE_FUNCTION( "uitx_init" ); |
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65 |
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66 /* |
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67 * Initialise every incarnation of UITX with state TLLI_UNASSIGNED_NOT_READY. |
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68 */ |
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69 SWITCH_SERVICE (llc, uitx, 0); |
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70 INIT_STATE (UITX_0, UITX_TLLI_UNASSIGNED_NOT_READY); |
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71 |
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72 SWITCH_SERVICE (llc, uitx, 1); |
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73 INIT_STATE (UITX_1, UITX_TLLI_UNASSIGNED_NOT_READY); |
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74 |
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75 SWITCH_SERVICE (llc, uitx, 2); |
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76 INIT_STATE (UITX_2, UITX_TLLI_UNASSIGNED_NOT_READY); |
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77 |
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78 SWITCH_SERVICE (llc, uitx, 3); |
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79 INIT_STATE (UITX_3, UITX_TLLI_UNASSIGNED_NOT_READY); |
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80 |
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81 SWITCH_SERVICE (llc, uitx, 4); |
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82 INIT_STATE (UITX_4, UITX_TLLI_UNASSIGNED_NOT_READY); |
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83 |
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84 SWITCH_SERVICE (llc, uitx, 5); |
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85 INIT_STATE (UITX_5, UITX_TLLI_UNASSIGNED_NOT_READY); |
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86 |
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87 return; |
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88 } /* uitx_init() */ |
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89 |
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90 |
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91 |
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92 /* |
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93 +------------------------------------------------------------------------------ |
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94 | Function : uitx_init_sapi |
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95 +------------------------------------------------------------------------------ |
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96 | Description : This procedure initialises all necessary variables of |
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97 | ui_frames_tx for the given SAPI. |
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98 | |
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99 | Parameters : |
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100 | |
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101 +------------------------------------------------------------------------------ |
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102 */ |
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103 GLOBAL void uitx_init_sapi (void) |
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104 { |
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105 TRACE_FUNCTION( "uitx_init_sapi" ); |
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106 |
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107 /* |
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108 * <R.LLC.TLLI_ASS.A.007>, <R.LLC.TLLI_ASS.A.008> |
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109 */ |
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110 llc_data->uitx->vu = 0; |
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111 |
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112 return; |
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113 } /* uitx_init_sapi() */ |
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114 |
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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 | Function : uitx_build_ui_header |
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120 +------------------------------------------------------------------------------ |
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121 | Description : This procedure inserts the address and control field of an UI |
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122 | frame in the given sdu. sdu already contains the user data. |
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123 | The variable cipher indicates the setting of the E bit. The |
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124 | variable relclass contains the information if the frame shall |
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125 | be transmitted in protected or unprotected mode, which is |
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126 | needed in this function to set the PM bit properly. |
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127 | |
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128 | Parameters : sdu - a valid pointer to a T_sdu variable, must contain enough |
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129 | spare octets at the beginning for the LLC header fields |
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130 | (address + control field = 3 octets for UI frames) |
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131 | cr_bit - C/R bit |
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132 | sapi - a valid SAPI for unacknowledged operation |
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133 | nu - N(U) |
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134 | cipher - ciphering indicator (see LL SAP: LL-UNITDATA-REQ) |
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135 | relclass - QoS reliability class (see LL SAP), must not be set |
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136 | to LL_RELCLASS_SUB |
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137 | |
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138 +------------------------------------------------------------------------------ |
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139 */ |
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140 GLOBAL void uitx_build_ui_header |
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141 ( |
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142 #ifdef LL_DESC |
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143 T_desc_list3* desc_list3, |
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144 #else |
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145 T_sdu *sdu, |
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146 #endif |
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147 T_BIT cr_bit, |
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148 UBYTE sapi, |
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149 T_FRAME_NUM nu, |
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150 UBYTE cipher, |
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151 UBYTE relclass |
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152 ) |
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153 |
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154 { |
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155 |
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156 #ifdef LL_DESC |
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157 T_desc3 *desc3 = (T_desc3*)(desc_list3->first); |
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158 UBYTE *buf = (UBYTE*)(desc3->buffer); |
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159 #endif |
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160 |
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161 TRACE_FUNCTION( "uitx_build_ui_header" ); |
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162 |
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163 #ifdef LL_DESC |
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164 /* |
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165 * set new offset (3 octets earlier) and new length of desc_list3 |
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166 */ |
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167 desc3->offset -= UI_CTRL_MIN_OCTETS; |
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168 desc3->len += UI_CTRL_MIN_OCTETS; |
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169 desc_list3->list_len += UI_CTRL_MIN_OCTETS; |
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170 /* |
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171 * insert address field (PD is always 0) |
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172 */ |
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173 buf[desc3->offset] = ((UBYTE)cr_bit << 6) | sapi; |
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174 |
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175 /* |
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176 * insert 1st octet of control field |
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177 * (UI code + 3 most significant bits of N(U)) |
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178 */ |
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179 buf[desc3->offset+1]= 0xC0 | (UBYTE)(nu >> 6); |
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180 |
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181 /* |
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182 * insert 2nd octet of control field |
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183 * (6 least significant bits of N(U) + E bit + PM bit) |
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184 */ |
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185 buf[desc3->offset+2]= (((UBYTE)nu & 0x3F) << 2); |
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186 |
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187 if (cipher == LL_CIPHER_ON) |
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188 { |
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189 buf[desc3->offset+2] |= 0x02; |
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190 } |
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191 |
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192 /* |
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193 * all reliability classes except LL_NO_REL request protected data |
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194 */ |
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195 if (relclass != LL_NO_REL) |
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196 { |
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197 buf[desc3->offset+2] |= 0x01; |
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198 } |
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199 |
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200 return; |
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201 |
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202 #else |
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203 |
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204 /* |
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205 * set new offset (3 octets earlier) and new length of sdu |
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206 */ |
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207 sdu->o_buf -= UI_CTRL_MIN_OCTETS * 8; |
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208 sdu->l_buf += UI_CTRL_MIN_OCTETS * 8; |
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209 |
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210 /* |
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211 * insert address field (PD is always 0) |
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212 */ |
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213 sdu->buf[sdu->o_buf/8] = ((UBYTE)cr_bit << 6) | sapi; |
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214 |
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215 /* |
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216 * insert 1st octet of control field |
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217 * (UI code + 3 most significant bits of N(U)) |
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218 */ |
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219 sdu->buf[(sdu->o_buf/8)+1] = 0xC0 | (UBYTE)(nu >> 6); |
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220 |
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221 /* |
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222 * insert 2nd octet of control field |
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223 * (6 least significant bits of N(U) + E bit + PM bit) |
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224 */ |
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225 sdu->buf[(sdu->o_buf/8)+2] = (((UBYTE)nu & 0x3F) << 2); |
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226 |
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227 if (cipher == LL_CIPHER_ON) |
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228 { |
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229 sdu->buf[(sdu->o_buf/8)+2] |= 0x02; |
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230 } |
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231 |
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232 /* |
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233 * all reliability classes except LL_NO_REL request protected data |
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234 */ |
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235 if (relclass != LL_NO_REL) |
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236 { |
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237 sdu->buf[(sdu->o_buf/8)+2] |= 0x01; |
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238 } |
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239 |
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240 return; |
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241 |
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242 #endif /* LL_DESC */ |
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243 |
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244 } /* uitx_build_ui_header() */ |