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annotate src/g23m-gprs/llc/llc_uirxf.c @ 183:219afcfc6250

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src/g23m-gprs: initial import from TCS3.2/LoCosto
author Mychaela Falconia <falcon@freecalypso.org>
date Thu, 13 Oct 2016 04:24:13 +0000
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219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
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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 (UIRX-statemachine)
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20 +-----------------------------------------------------------------------------
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21 */
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22
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23 #ifndef LLC_UIRXF_C
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24 #define LLC_UIRXF_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 #include "llc_uirxf.h" /* to compare own prototyes */
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42 /*==== CONST ================================================================*/
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43
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44 /*==== LOCAL VARS ===========================================================*/
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45
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46 /*==== PRIVATE FUNCTIONS ====================================================*/
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47
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48 /*==== PUBLIC FUNCTIONS =====================================================*/
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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 : uirx_queue_clean
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54 +------------------------------------------------------------------------------
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55 | Description : This procedure removes all entries from the UIRX queue
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56 |
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57 | Parameters :
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58 |
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59 +------------------------------------------------------------------------------
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60 */
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61 GLOBAL void uirx_queue_clean (void)
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62 {
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63 T_UIRX_QUEUE** entry = &(llc_data->uirx->queue);
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64
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65 TRACE_FUNCTION( "uirx_queue_clean" );
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66
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67 while (*entry)
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68 {
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69 /*
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70 * get pointer to next (=first) entry
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71 */
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72 T_UIRX_QUEUE* current = *entry;
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73
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74 /*
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75 * Free frame, if one is attached to the entry
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76 */
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77 if (current->frame != NULL)
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78 {
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79 PFREE (current->frame);
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80 }
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81
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82 /*
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83 * remove next entry from the entry (make second to first)
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84 */
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85 *entry = current->next;
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86
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87 /*
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88 * free the removed entry
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89 */
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90 MFREE (current);
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91 }
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92
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93 } /* uirx_queue_clean() */
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94
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95 /*
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96 +------------------------------------------------------------------------------
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97 | Function : uirx_queue_store
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98 +------------------------------------------------------------------------------
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99 | Description : This procedure stores the primitive to the end of the queue.
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100 | If the queue is full, an the primitive is freed.
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101 |
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102 | Parameters :
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103 |
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104 +------------------------------------------------------------------------------
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105 */
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106 GLOBAL void uirx_queue_store (T_LL_UNITDATA_IND *ll_unitdata_ind)
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107 {
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108 T_UIRX_QUEUE** entry = &(llc_data->uirx->queue);
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109 int num_entries = 0;
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110
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111 TRACE_FUNCTION( "uirx_queue_store" );
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112
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113 /*
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114 * Skip, but count, already for L3 ready waiting entries.
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115 * If queue is already full, free this primitive.
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116 */
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117 while (*entry)
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118 {
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diff changeset
119 num_entries++;
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
120
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
121 if (num_entries >= UIRX_QUEUE_SIZE)
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
122 {
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
123 PFREE (ll_unitdata_ind);
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
124 TRACE_EVENT ("LL_UNITDATA_IND ignored -> UIRX queue is full");
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
125 return;
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
126 }
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
127
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
128 entry = &((*entry)->next);
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
129 }
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
130
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
131 /*
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
132 * Allocate management memory
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
133 */
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
134 MALLOC( *entry, sizeof(T_UIRX_QUEUE) );
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
135
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
136 if (*entry)
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
137 {
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
138 /*
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
139 * Queue primitive
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
140 */
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
141 (*entry)->next = NULL;
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
142 (*entry)->frame = ll_unitdata_ind;
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
143
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
144 }
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
145 else
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
146 {
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
147 /*
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
148 * Out of memory
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
149 */
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
150 PFREE (ll_unitdata_ind);
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
151 TRACE_ERROR( "Out of memory in uirx_queue_store()" );
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
152 }
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
153
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
154 } /* uirx_queue_store() */
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
155
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
156
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
157 /*
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
158 +------------------------------------------------------------------------------
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
159 | Function : uirx_queue_retrieve
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
160 +------------------------------------------------------------------------------
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
161 | Description : Retrieve the next frame, if any.
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
162 |
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
163 | Parameters :
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
164 |
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
165 +------------------------------------------------------------------------------
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
166 */
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
167 GLOBAL BOOL uirx_queue_retrieve (T_LL_UNITDATA_IND **ll_unitdata_ind)
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
168 {
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
169 T_UIRX_QUEUE** entry = &(llc_data->uirx->queue);
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
170
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
171 TRACE_FUNCTION( "uirx_queue_retrieve" );
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
172
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
173 /*
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
174 * Take the first queue entry, if there is any.
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
175 */
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
176 if (*entry)
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
177 {
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
178 /*
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
179 * Store pointer to the entry
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
180 */
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
181 T_UIRX_QUEUE* current = *entry;
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
182
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
183 /*
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
184 * Remove entry from the queue (make second to first)
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
185 */
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
186 *entry = current->next;
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
187
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
188 *ll_unitdata_ind = current->frame;
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
189
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
190 /*
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
191 * Free retrieved management entry
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
192 */
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
193 MFREE (current);
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
194
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
195 return TRUE;
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
196 }
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
197 else
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
198 {
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
199 /*
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
200 * Set default return values
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
201 */
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
202 *ll_unitdata_ind = NULL;
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
203
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
204 return FALSE;
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
205 }
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
206
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
207 } /* uirx_queue_retrieve() */
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
208
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
209 /*
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
210 +------------------------------------------------------------------------------
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
211 | Function : uirx_init
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
212 +------------------------------------------------------------------------------
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
213 | Description : This procedure initialises all necessary variables of
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
214 | ui_frames_rx for all SAPIs.
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
215 |
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
216 | Parameters :
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
217 |
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
218 +------------------------------------------------------------------------------
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
219 */
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
220 GLOBAL void uirx_init (void)
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
221 {
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
222 UBYTE inc;
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
223
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
224 TRACE_FUNCTION( "uirx_init" );
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
225
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
226 /*
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
227 * Initialise every incarnation of UIRX with state TLLI_UNASSIGNED_NOT_READY,
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
228 * except incarnation 0 (= SAPI 1), because we have no flow control for
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
229 * SAPI 1.
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
230 */
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
231 SWITCH_SERVICE (llc, uirx, 0);
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
232 INIT_STATE (UIRX_0, UIRX_TLLI_UNASSIGNED_READY);
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
233
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
234 SWITCH_SERVICE (llc, uirx, 1);
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
235 INIT_STATE (UIRX_1, UIRX_TLLI_UNASSIGNED_NOT_READY);
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
236
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
237 SWITCH_SERVICE (llc, uirx, 2);
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
238 INIT_STATE (UIRX_2, UIRX_TLLI_UNASSIGNED_NOT_READY);
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
239
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
240 SWITCH_SERVICE (llc, uirx, 3);
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
241 INIT_STATE (UIRX_3, UIRX_TLLI_UNASSIGNED_NOT_READY);
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
242
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
243 SWITCH_SERVICE (llc, uirx, 4);
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
244 INIT_STATE (UIRX_4, UIRX_TLLI_UNASSIGNED_NOT_READY);
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
245
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
246 SWITCH_SERVICE (llc, uirx, 5);
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
247 INIT_STATE (UIRX_5, UIRX_TLLI_UNASSIGNED_NOT_READY);
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
248
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
249 /*
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
250 * Initialise the UIRX queue structure
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
251 */
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
252 for (inc = 0; inc < UIRX_NUM_INC; inc++)
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
253 {
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
254 SWITCH_SERVICE (llc, uirx, inc);
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
255
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
256 /*
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
257 * Free old used resources (in case of an LLC restart):
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
258 */
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
259 uirx_queue_clean ();
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
260 llc_data->uirx->queue = NULL;
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
261 }
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
262
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
263 return;
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
264 } /* uirx_init() */
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
265
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
266
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
267 /*
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
268 +------------------------------------------------------------------------------
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
269 | Function : uirx_init_sapi
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
270 +------------------------------------------------------------------------------
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
271 | Description : This procedure initialises all necessary variables of
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
272 | ui_frames_rx for the given SAPI.
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
273 |
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
274 | Parameters :
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
275 |
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
276 +------------------------------------------------------------------------------
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
277 */
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
278 GLOBAL void uirx_init_sapi (void)
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
279 {
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
280 TRACE_FUNCTION( "uirx_init_sapi" );
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
281
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
282 /*
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
283 * <R.LLC.TLLI_ASS.A.007>, <R.LLC.TLLI_ASS.A.009>
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
284 */
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
285 llc_data->sapi->vur = 0;
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
286
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
287 llc_data->uirx->last_32_frames_bitfield = 0L;
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
288
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
289 return;
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
290 } /* uirx_init_sapi() */
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
291
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
292
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
293
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
294 /*
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
295 +------------------------------------------------------------------------------
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
296 | Function : uirx_store_nu
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
297 +------------------------------------------------------------------------------
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
298 | Description : This procedure stores the given n(u) in a list of the last 32
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
299 | received n(u)s concerning the given SAPI. Therefore the
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
300 | variable v(ur) is passed to the procedure, which contains
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
301 | the current value of the unacknowledged receive sequence
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
302 | number.
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
303 |
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
304 | Parameters : nu - N(U), must be in the range vur-32 <= nu < vur
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
305 | vur - V(UR)
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
306 |
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
307 +------------------------------------------------------------------------------
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
308 */
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
309 GLOBAL void uirx_store_nu (T_FRAME_NUM nu, T_FRAME_NUM vur)
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
310 {
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
311 USHORT diff;
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
312
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
313
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
314 TRACE_FUNCTION( "uirx_store_nu" );
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
315
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
316 /*
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
317 * Set the bit for the received N(U) in last_32_frames_bitfield. The
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
318 * relative bit position referring to V(UR) has already been stored
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
319 * in diff.
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
320 */
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
321 diff = (vur + (MAX_SEQUENCE_NUMBER+1) - nu - 1) % (MAX_SEQUENCE_NUMBER+1);
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
322
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
323 llc_data->uirx->last_32_frames_bitfield |= (0x00000001L) << diff;
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
324
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
325 return;
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
326 } /* uirx_store_nu() */
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
327
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
328
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
329
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
330 /*
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
331 +------------------------------------------------------------------------------
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
332 | Function : uirx_check_nu
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
333 +------------------------------------------------------------------------------
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
334 | Description : This procedure checks if the given n(u) has already been
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
335 | received for the current SAPI within the last 32 frames (see
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
336 | procedure store_nu).
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
337 |
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
338 | Parameters : nu - N(U), must be in the range vur-32 <= nu < vur
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
339 | vur - V(UR)
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
340 |
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
341 | Returns : TRUE - if frame was already received.
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
342 | FALSE - else
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
343 +------------------------------------------------------------------------------
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
344 */
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
345 GLOBAL BOOL uirx_check_nu (T_FRAME_NUM nu, T_FRAME_NUM vur)
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
346 {
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
347 USHORT diff;
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
348
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
349
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
350 TRACE_FUNCTION( "uirx_check_nu" );
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
351
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
352 /*
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
353 * The difference (modulo counted) between V(UR) and N(U) is
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
354 * calculated as follows:
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
355 * - add 512 (maximum sequence number + 1) to V(UR), in case V(UR)
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
356 * is smaller than N(U)
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
357 * - subtract N(U)
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
358 * - subtract 1 because V(UR) is not contained within
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
359 * last_32_frames_bitfield and thus the bit shift must be one less
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
360 * - afterwards apply modulo 512 to get back into the range of
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
361 * sequence numbers, because we added this value initially to
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
362 * V(UR)
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
363 */
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
364 diff = (vur + (MAX_SEQUENCE_NUMBER+1) - nu - 1) % (MAX_SEQUENCE_NUMBER + 1);
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
365
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
366 /*
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
367 * Check if the corresponding bit of N(U) in last_32_frames_bitfield is
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
368 * set. The bit is stored in last_32_frames_bitfield relative to V(UR).
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
369 */
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
370 return ((llc_data->uirx->last_32_frames_bitfield & (0x00000001L << diff)) != 0L);
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
371 } /* uirx_check_nu() */
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
372
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
373
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
374 /*
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
375 +------------------------------------------------------------------------------
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
376 | Function : uirx_set_new_vur
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
377 +------------------------------------------------------------------------------
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
378 | Description : This procedure handles setting vur to a new value. The modulo
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
379 | operation and the handling of the last_32_frames_bitfield
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
380 | is done here.
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
381 |
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
382 | Parameters : new_vur - V(UR), must be in range V(UR) < new_vur < V(UR)-32
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
383 |
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
384 +------------------------------------------------------------------------------
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
385 */
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
386 GLOBAL void uirx_set_new_vur (T_FRAME_NUM new_vur)
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
387 {
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
388 USHORT diff;
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
389
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
390
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
391 TRACE_FUNCTION( "uirx_set_new_vur" );
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
392
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
393 new_vur %= (MAX_SEQUENCE_NUMBER+1);
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
394
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
395 /*
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
396 * The difference (modulo counted) between V(UR) and the new_vur is
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
397 * calculated as follows:
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
398 * - add 512 (maximum sequence number + 1) to new_vur
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
399 * - subtract V(UR)
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
400 * - afterwards apply modulo 512 to get back into the range of
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
401 * sequence numbers, because we added this value initially
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
402 */
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
403 diff = (new_vur + (MAX_SEQUENCE_NUMBER+1) - llc_data->sapi->vur)
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
404 % (MAX_SEQUENCE_NUMBER+1);
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
405
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
406 /*
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
407 * Now move the bitfield indicating the last 32 frames numbers. If the diff
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
408 * from current to new_vur is to large, the bitfild is automaticly cleard
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
409 * by shifting all bits out.
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
410 */
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
411 llc_data->uirx->last_32_frames_bitfield <<= diff;
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
412
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
413 /*
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
414 * Increase oc if necessary. If new_vur is a higher value, no overflow
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
415 * encountered. If new_vur is lower, an retransmission could be possible
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
416 * or we have had an overflow. But this function will not be called in
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
417 * case of a retransmission!
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
418 */
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
419 if ( new_vur < llc_data->sapi->vur )
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
420 {
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
421 llc_data->sapi->oc_ui_rx += (MAX_SEQUENCE_NUMBER+1);
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
422 }
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
423
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
424 /*
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
425 * Set net V(UR) value
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
426 */
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
427 llc_data->sapi->vur = new_vur;
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
428
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
429 } /* uirx_set_new_vur() */
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
430