FreeCalypso > hg > fc-magnetite
annotate src/g23m-gprs/llc/llc_t200f.c @ 640:16eb1b9640dc
target gtm900 renamed to gtm900mgc2
This change reflects the fact that the build target in question supports
MGC2GSMT hardware only, and will NOT work on other hw that confusing bears
the same end user name of GTM900, neither the LoCosto-based GTM900-C
nor the Calypso-based MG01GSMT that has a different and incompatible RFFE.
If we ever get our hands on a piece of MG01GSMT hw and add support for it,
that other target will be named gtm900mg01.
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Fri, 31 Jan 2020 00:46:07 +0000 |
parents | 219afcfc6250 |
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rev | line source |
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1 /* |
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2 +----------------------------------------------------------------------------- |
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3 | Project : |
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4 | Modul : |
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5 +----------------------------------------------------------------------------- |
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6 | Copyright 2002 Texas Instruments Berlin, AG |
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7 | All rights reserved. |
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8 | |
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9 | This file is confidential and a trade secret of Texas |
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10 | Instruments Berlin, AG |
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11 | The receipt of or possession of this file does not convey |
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12 | any rights to reproduce or disclose its contents or to |
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13 | manufacture, use, or sell anything it may describe, in |
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14 | whole, or in part, without the specific written consent of |
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15 | Texas Instruments Berlin, AG. |
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16 +----------------------------------------------------------------------------- |
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17 | Purpose : This modul is part of the entity LLC and implements all |
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18 | procedures and functions as described in the |
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19 | SDL-documentation (T200-statemachine) |
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20 +----------------------------------------------------------------------------- |
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21 */ |
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22 |
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23 #ifndef LLC_T200F_C |
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24 #define LLC_T200F_C |
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25 #endif |
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26 |
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27 #define ENTITY_LLC |
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28 |
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29 /*==== INCLUDES =============================================================*/ |
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30 |
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31 #include <string.h> /* to get memcpy() */ |
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32 |
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33 #include "typedefs.h" /* to get Condat data types */ |
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34 #include "vsi.h" /* to get a lot of macros */ |
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35 #include "macdef.h" |
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36 #include "gprs.h" |
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37 #include "gsm.h" /* to get a lot of macros */ |
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38 #include "cnf_llc.h" /* to get cnf-definitions */ |
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39 #include "mon_llc.h" /* to get mon-definitions */ |
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40 #include "prim.h" /* to get the definitions of used SAP and directions */ |
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41 #include "llc.h" /* to get the global entity definitions */ |
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42 #include "llc_f.h" /* to get the global function */ |
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43 #include "llc_t200f.h" /* to get local typedef's and defines */ |
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44 |
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45 /*==== CONST ================================================================*/ |
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46 |
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47 /*==== LOCAL VARS ===========================================================*/ |
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48 |
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49 /*==== PRIVATE FUNCTIONS ====================================================*/ |
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50 |
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51 /*==== PUBLIC FUNCTIONS =====================================================*/ |
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52 |
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53 |
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54 /* |
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55 +------------------------------------------------------------------------------ |
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56 | Function : t200_init |
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57 +------------------------------------------------------------------------------ |
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58 | Description : This procedure initialises all necessary variables of |
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59 | timer_t200 for all SAPIs. |
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60 | |
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61 | Parameters : |
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62 | |
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63 +------------------------------------------------------------------------------ |
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64 */ |
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65 GLOBAL void t200_init (void) |
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66 { |
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67 UBYTE inc; |
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68 |
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69 |
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70 TRACE_FUNCTION( "t200_init" ); |
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71 |
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72 /* |
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73 * Initialise timer data structures and initial state of every incarnation. |
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74 * The timer length is not set in this procedure, it is instead initialised |
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75 * by llc_init_parameters(). |
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76 */ |
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77 for (inc = 0; inc < T200_NUM_INC; inc++) |
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78 { |
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79 SWITCH_SERVICE (llc, t200, inc); |
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80 |
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81 /* |
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82 * Free old used resources (in case of an LLC restart): |
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83 * memory, stored primitives, running timer. |
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84 */ |
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85 t200_stop(); |
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86 |
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87 } |
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88 |
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89 SWITCH_SERVICE (llc, t200, 0); |
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90 INIT_STATE (T200_0, T200_TLLI_UNASSIGNED); |
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91 |
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92 SWITCH_SERVICE (llc, t200, 1); |
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93 INIT_STATE (T200_1, T200_TLLI_UNASSIGNED); |
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94 |
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95 SWITCH_SERVICE (llc, t200, 2); |
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96 INIT_STATE (T200_2, T200_TLLI_UNASSIGNED); |
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97 |
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98 SWITCH_SERVICE (llc, t200, 3); |
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99 INIT_STATE (T200_3, T200_TLLI_UNASSIGNED); |
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100 |
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101 SWITCH_SERVICE (llc, t200, 4); |
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102 INIT_STATE (T200_4, T200_TLLI_UNASSIGNED); |
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103 |
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104 SWITCH_SERVICE (llc, t200, 5); |
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105 INIT_STATE (T200_5, T200_TLLI_UNASSIGNED); |
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106 |
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107 return; |
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108 } /* t200_init() */ |
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109 |
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110 |
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111 /* |
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112 +------------------------------------------------------------------------------ |
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113 | Function : t200_start |
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114 +------------------------------------------------------------------------------ |
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115 | Description : This procedure starts timer T200 for the current sapi and |
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116 | stores a copy of the given frame and the originator. The |
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117 | frame address is a pointer to a LL_UNITDATA_REQ primitive |
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118 | which is associated with T200 and will be freed by the lower |
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119 | layers after transmission. Therefore a copy has to be stored. |
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120 | cause is the associated GRLC_DATA_REQ!cause for the frame. |
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121 | originator is an identifier of the service who started the |
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122 | timer. The frame is returned to the service (originator) |
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123 | which started T200 with the corresponding EXPIRED signal. |
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124 | |
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125 | Parameters : frame - a pointer to the frame that shall be associated |
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126 | with the timer |
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127 | cause - RLC/MAC cause of frame |
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128 | originator - the service which started the timer, must not be |
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129 | NO_SERVICE |
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130 | |
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131 +------------------------------------------------------------------------------ |
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132 */ |
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133 GLOBAL void t200_start |
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134 ( |
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135 #ifdef LL_DESC |
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136 T_LL_UNITDESC_REQ *frame, |
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137 #else |
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138 T_LL_UNITDATA_REQ *frame, |
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139 #endif |
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140 UBYTE cause, |
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141 T_SERVICE originator |
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142 ) |
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143 { |
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144 #ifdef LL_DESC |
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145 USHORT frame_len, frame_offset; |
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146 UBYTE *prim_buf, *frame_buf; |
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147 T_desc3 *desc3, *frame_desc3; |
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148 #endif /* LL_DESC */ |
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149 |
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150 TRACE_FUNCTION( "t200_start" ); |
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151 |
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152 #ifdef LL_DESC |
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153 /* |
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154 * Start timer T200 for the current SAPI. |
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155 */ |
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156 #ifdef _SIMULATION_ |
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157 /* |
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158 * In simulation mode, use always a timer value of 5 seconds. |
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159 */ |
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160 vsi_t_start (VSI_CALLER |
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161 (USHORT)(TIMER_T200_BASE + UIMAP(llc_data->current_sapi)), |
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162 5000); |
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163 #else |
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164 vsi_t_start (VSI_CALLER |
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165 (USHORT)(TIMER_T200_BASE + UIMAP(llc_data->current_sapi)), |
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166 llc_data->t200->length); |
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167 #endif /* _SIMULATION_ */ |
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168 |
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169 { |
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170 /* |
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171 * Allocate copy of frame which shall be stored. Because an exact copy |
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172 * of frame shall be stored, the SDU offset must be added to the used |
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173 * SDU length. |
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174 */ |
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175 frame_desc3 = (T_desc3*)frame->desc_list3.first; |
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176 frame_len = frame->desc_list3.list_len; |
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177 frame_offset = frame_desc3->offset; |
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178 { |
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179 PALLOC(ll_unitdesc_req, LL_UNITDESC_REQ); |
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180 desc3 = llc_palloc_desc(frame_len, frame_offset);/* Only one desc3 and buffer are allocated */ |
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181 |
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182 /* |
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183 * Copy primitive contents to newly allocated primitive. SDU contents |
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184 * have to be copied separately, because they are allocated dynamically |
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185 * and not of known size in the primitve structure: |
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186 * First copy primitive with SDU, but only sdu.l_buf/o_buf and first octet |
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187 * of sdu.buf. |
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188 * Then memcpy actual SDU content with size defined in sdu.l_buf. |
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189 */ |
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190 *ll_unitdesc_req = *frame; |
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191 ll_unitdesc_req->desc_list3.first = (ULONG)desc3; |
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192 |
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193 prim_buf = (UBYTE*)desc3->buffer; |
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194 frame_buf = (UBYTE*)frame_desc3->buffer; |
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195 |
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196 memcpy (&(prim_buf[desc3->offset]), |
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197 &(frame_buf[frame_offset]), frame_len); |
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198 |
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199 /* |
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200 * Store the given frame address, RLC/MAC cause, and the originator |
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201 * for this timer. |
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202 */ |
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203 llc_data->t200->frame = ll_unitdesc_req; |
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204 llc_data->t200->cause = cause; |
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205 llc_data->t200->originator = originator; |
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206 } |
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207 } |
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208 |
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209 return; |
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210 |
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211 #else /* LL_DESC */ |
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212 /* |
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213 * Start timer T200 for the current SAPI. |
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214 */ |
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215 #ifdef _SIMULATION_ |
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216 /* |
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217 * In simulation mode, use always a timer value of 5 seconds. |
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218 */ |
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219 vsi_t_start (VSI_CALLER |
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220 (USHORT)(TIMER_T200_BASE + UIMAP(llc_data->current_sapi)), |
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221 5000); |
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222 #else |
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223 vsi_t_start (VSI_CALLER |
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224 (USHORT)(TIMER_T200_BASE + UIMAP(llc_data->current_sapi)), |
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225 llc_data->t200->length); |
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226 #endif /* _SIMULATION_ */ |
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227 |
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228 { |
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229 /* |
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230 * Allocate copy of frame which shall be stored. Because an exact copy |
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231 * of frame shall be stored, the SDU offset must be added to the used |
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232 * SDU length. |
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233 */ |
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234 PALLOC_SDU (ll_unitdata_req, LL_UNITDATA_REQ, |
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235 (USHORT)(frame->sdu.o_buf + frame->sdu.l_buf)); |
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236 |
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237 /* |
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238 * Copy primitive contents to newly allocated primitive. SDU contents |
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239 * have to be copied separately, because they are allocated dynamically |
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240 * and not of known size in the primitve structure: |
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241 * First copy primitive with SDU, but only sdu.l_buf/o_buf and first octet |
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242 * of sdu.buf. |
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243 * Then memcpy actual SDU content with size defined in sdu.l_buf. |
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244 */ |
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245 *ll_unitdata_req = *frame; |
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246 memcpy (&(ll_unitdata_req->sdu.buf[ll_unitdata_req->sdu.o_buf/8]), |
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247 &(frame->sdu.buf[frame->sdu.o_buf/8]), frame->sdu.l_buf/8); |
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248 |
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249 /* |
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250 * Store the given frame address, RLC/MAC cause, and the originator |
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251 * for this timer. |
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252 */ |
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253 llc_data->t200->frame = ll_unitdata_req; |
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254 llc_data->t200->cause = cause; |
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255 llc_data->t200->originator = originator; |
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256 } |
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257 |
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258 return; |
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259 #endif /* LL_DESC */ |
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260 } /* t200_start() */ |
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261 |
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262 |
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263 /* |
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264 +------------------------------------------------------------------------------ |
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265 | Function : t200_stop |
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266 +------------------------------------------------------------------------------ |
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267 | Description : This procedure stops (resets) timer T200 for the current sapi. |
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268 | The associated frame address and the originator of T200 are |
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269 | discarded (i.e. the allocated primitive of the frame is freed). |
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270 | |
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271 | Parameters : |
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272 | |
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273 +------------------------------------------------------------------------------ |
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274 */ |
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275 GLOBAL void t200_stop (void) |
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276 { |
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277 TRACE_FUNCTION( "t200_stop" ); |
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278 |
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279 /* |
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280 * Stop timer T200 for the current SAPI. |
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281 */ |
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282 vsi_t_stop (VSI_CALLER |
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283 (USHORT)(TIMER_T200_BASE + UIMAP(llc_data->current_sapi))); |
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284 |
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285 /* |
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286 * Free stored primitive. |
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287 */ |
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288 if (llc_data->t200->frame) |
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289 { |
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290 #ifdef LL_DESC |
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291 /* |
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292 * The descriptor contents of the primitive structure |
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293 * must be freed as well. |
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294 */ |
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295 llc_cl_desc3_free((T_desc3*)llc_data->t200->frame->desc_list3.first); |
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296 #endif /* LL_DESC */ |
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297 PFREE (llc_data->t200->frame); |
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298 } |
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299 |
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300 /* |
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301 * Delete timer data of the timer for the given SAPI. |
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302 */ |
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303 llc_data->t200->frame = NULL; |
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304 llc_data->t200->originator = NO_SERVICE; |
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305 llc_data->t200->cause = 0; |
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306 |
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307 return; |
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308 } /* t200_stop() */ |
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309 |
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310 |
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311 /* |
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312 +------------------------------------------------------------------------------ |
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313 | Function : t200_get_timer_data |
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314 +------------------------------------------------------------------------------ |
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315 | Description : This procedure returns frame address, frame cause, and the |
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316 | originator identifier for timer T200 of the current sapi. |
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317 | (see procedure t200_start) |
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318 | |
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319 | Parameters : frame - will be set to the frame pointer which is stored |
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320 | for the timer, must be a valid pointer |
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321 | cause - will be set to the RLC/MAC frame cause |
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322 | originator - will be set to the originating service for the |
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323 | timer, must be a valid pointer |
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324 | |
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325 +------------------------------------------------------------------------------ |
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326 */ |
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327 GLOBAL void t200_get_timer_data |
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328 ( |
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329 #ifdef LL_DESC |
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330 T_LL_UNITDESC_REQ **frame, |
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331 #else |
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332 T_LL_UNITDATA_REQ **frame, |
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333 #endif |
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334 UBYTE *cause, |
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335 T_SERVICE *originator) |
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336 { |
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337 TRACE_FUNCTION( "t200_get_timer_data" ); |
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338 |
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339 /* |
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340 * Get timer data of the timer for the given SAPI. |
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341 */ |
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342 *frame = llc_data->t200->frame; |
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343 *cause = llc_data->t200->cause; |
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344 *originator = llc_data->t200->originator; |
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345 |
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346 return; |
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347 } /* t200_get_timer_data() */ |