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annotate src/g23m-fad/l2r/tra_dnf.c @ 61:935692f51b38

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src/g23m-gsm/alr2/alr.h: removed bogus extern to pass gcc compilation
author Mychaela Falconia <falcon@freecalypso.org>
date Thu, 19 Jul 2018 23:30:08 +0000
parents d393cd9bb723
children
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1
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1 /*
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2 +-----------------------------------------------------------------------------
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3 | Project : CSD (8411)
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4 | Modul : tra_dnf.c
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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 defines the procedures and functions for TRA
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18 +-----------------------------------------------------------------------------
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19 */
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20
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21 #ifndef TRA_DNF_C
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22 #define TRA_DNF_C
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23 #endif
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24
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25 #define ENTITY_L2R
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26
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27 /*==== INCLUDES ===================================================*/
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28
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29 #include <string.h>
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30 #include "typedefs.h"
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31 #include "pconst.cdg"
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32 #include "vsi.h"
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33 #include "macdef.h"
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34 #include "custom.h"
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35 #include "gsm.h"
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36 #include "prim.h"
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37 #include "pei.h"
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38 #include "tok.h"
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39 #include "dti.h"
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40
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41 #include "cl_ribu.h"
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42 #include "tra_pei.h"
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43 #include "tra.h"
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44
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45 /*==== CONST =======================================================*/
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46
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47 /*==== TYPES =======================================================*/
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48
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49 /*==== VAR EXPORT ==================================================*/
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50
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51 /*==== VAR LOCAL ===================================================*/
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52
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53 /*==== FUNCTIONS ===================================================*/
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54
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55 /*
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56 +------------------------------------------------------------------------------
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57 | Function : dl_init
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58 +------------------------------------------------------------------------------
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59 | Description : initialise the l2r data for the downlink process
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60 |
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61 | Parameters : T_TRA_DN *ddl
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62 |
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63 |
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64 | Return : -
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65 +------------------------------------------------------------------------------
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66 */
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67
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68 GLOBAL void dl_init(T_TRA_DN *ddl)
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69 {
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70 TRACE_FUNCTION ("dl_init()");
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71
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72 ddl->sa = FL_INACTIVE;
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73 ddl->sb = FL_INACTIVE;
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74 ddl->x = FL_INACTIVE;
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75 ddl->prim = NULL; /* meaning: no DTI2_DATA_IND allocated yet */
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76 ddl->Brk_dti_data_ind = NULL;
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77
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78 SET_STATE (DN, DN_INACTIVE);
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79 }
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80
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81 /*
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82 +------------------------------------------------------------------------------
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83 | Function : dl_send_data_ind
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84 +------------------------------------------------------------------------------
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85 | Description : This procedure copies data from the downlink ring buffer
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86 | into a a dti_data_ind primitive and sends this primitive
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87 | to the upper layer.
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88 | (Just the SDU data are copied into the ring buffer by RA!)
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89 | Parameters : -
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90 |
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91 |
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92 | Return : -
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93 +------------------------------------------------------------------------------
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94 */
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95
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96 GLOBAL BOOL dl_send_data_ind(void)
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97 {
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98 T_TRA_DN *ddl = &tra_data->dn;
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99
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100 TRACE_FUNCTION ("dl_send_data_ind()");
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101
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102 if (ddl->prim NEQ NULL) /* check for existing dti_data_ind */
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103 {
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104 ddl->prim->parameters.st_lines.st_line_sa = ddl->sa;
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105 ddl->prim->parameters.st_lines.st_line_sb = ddl->sb;
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106 ddl->prim->parameters.st_lines.st_flow = ddl->x;
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107 ddl->prim->parameters.st_lines.st_break_len = DTI_BREAK_OFF;
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108
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109 ddl->prim->parameters.p_id = DTI_PID_UOS;
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110 ddl->prim->link_id = 0; /* dummy init */
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111
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112 dti_send_data (l2r_hDTI, TRA_DTI_UP_INSTANCE, TRA_DTI_UP_INTERFACE, TRA_DTI_UP_CHANNEL, ddl->prim);
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113 ddl->prim = NULL;
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114 return TRUE;
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115 }
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116 else
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117 {
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118 TRACE_EVENT("no prim to send");
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119 }
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120 return FALSE;
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121 }
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122
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123 /*
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124 +------------------------------------------------------------------------------
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125 | Function : dl_prep_data_ind
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126 +------------------------------------------------------------------------------
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127 | Description : This procedure appends data from the downlink ring buffer
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128 | to a already allocated dti_data_ind primitive
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129 |
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130 | Parameters : -
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131 |
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132 |
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133 | Return : -
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134 +------------------------------------------------------------------------------
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135 */
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136
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137 GLOBAL void dl_prep_data_ind(T_FD *pFD)
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138 {
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139 T_desc2* desc; /* block to be copied to */
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140 T_desc2* p_desc; /* prim to be copied to */
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141
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142 T_TRA_DN *ddl = &tra_data->dn;
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143
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144 TRACE_FUNCTION ("dl_prep_data_ind()");
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145
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146 if (ddl->prim EQ NULL) /* check for existing dti_data_ind */
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147 {
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148 PALLOC (dti_data_ind, DTI2_DATA_IND); /* start new prim */
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149 ddl->prim = dti_data_ind;
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150
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151 ddl->prim->desc_list2.list_len = 0;
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152
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153 MALLOC (desc, TRA_DTI_BUF_SIZE); /* contains header bytes, too! */
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154
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155 dti_data_ind->desc_list2.first =(ULONG) desc;
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156
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157 p_desc = (T_desc2 *) dti_data_ind->desc_list2.first;
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158 p_desc->len = 0;
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159 p_desc->size = 0;
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160 p_desc->offset = 0;
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161 p_desc->next = 0;
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162
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163 ddl->list_end = desc; /* set flag for next entrance without sending */
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164 }
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165 else
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166 {
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167 p_desc = ddl->list_end; /* append to remembered list end */
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168 }
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169
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170 if (!pFD) /* status bits changed; no data received */
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171 {
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172 return;
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173 }
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174
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175 if ((TRA_DTI_BUF_SIZE - p_desc->len - sizeof(T_desc2) + 1) >= MAX_SDU_SIZE)
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176 {
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177 memcpy(&p_desc->buffer[p_desc->len], pFD->buf, pFD->len); /* copy data from ring buffer */
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178 }
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179 else /* start new block */
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180 {
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181 MALLOC (desc, (USHORT)TRA_DTI_BUF_SIZE);
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182 p_desc->next = (ULONG) desc;
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183
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184 /* Initialize the new block's fields to zero */
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185 p_desc = (T_desc2 *)p_desc->next;
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186 p_desc->len = 0;
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187 p_desc->next = 0;
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188 p_desc->size = 0;
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189 p_desc->offset = 0; /* temporary solution */
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190
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191 memcpy(&p_desc->buffer[p_desc->len], pFD->buf, pFD->len); /* copy data from ring buffer */
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192 ddl->list_end = p_desc; /* write back start of last list */
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193 }
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194 p_desc->len += pFD->len;
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195 p_desc->size = p_desc->len;
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196 ddl->prim->desc_list2.list_len += pFD->len;
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197 }
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198
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199 /*
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200 +------------------------------------------------------------------------------
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201 | Function : rbm_init
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202 +------------------------------------------------------------------------------
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203 | Description :
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204 |
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205 | Parameters :
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206 |
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207 | Return : -
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208 +------------------------------------------------------------------------------
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209 */
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210
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211 GLOBAL void rbm_init(T_TRA_DN *ddl)
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212 {
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213 TRACE_FUNCTION ("rbm_init()");
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214
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215 cl_ribu_create(&tra_data->dn.ribu, MAX_SDU_SIZE, TRA_DLR_DEPTH);
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216 }
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parents:
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217
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diff changeset
218 /*
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219 +------------------------------------------------------------------------------
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220 | Function : tra_get_next_FrameDesc
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221 +------------------------------------------------------------------------------
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222 | Description : This function is called from the RA.
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223 | It returns the frame descriptor for that buffer,
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224 | which the RA has to write in the received frame.
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225 |
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226 | WRAPPER: Get frame descriptor for Layer 1 (TI)
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227 | Parameters : -
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228 |
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229 | Return : -
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230 +------------------------------------------------------------------------------
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parents:
diff changeset
231 */
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diff changeset
232
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diff changeset
233 GLOBAL T_FD *tra_get_next_FrameDesc(void)
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parents:
diff changeset
234 {
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parents:
diff changeset
235 return (cl_ribu_get_new_frame_desc(tra_data->dn.ribu));
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diff changeset
236 }