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annotate src/g23m-gprs/llc/llc_uirxp.c @ 527:343104963a7f

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doc/Developer-notes written
author Mychaela Falconia <falcon@freecalypso.org>
date Tue, 09 Oct 2018 08:09:53 +0000
parents 219afcfc6250
children
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183
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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 | functions to handles the incoming primitives as described in
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19 | the 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_UIRXP_C
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24 #define LLC_UIRXP_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 get queue management prototypes */
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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 +------------------------------------------------------------------------------
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54 | Function : uirx_ll_getunitdata_req
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55 +------------------------------------------------------------------------------
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56 | Description : Handles the primitive LL_GETUNITDATA_REQ
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57 |
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58 | Parameters : *ll_getunitdata_req - Ptr to primitive payload
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59 |
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60 +------------------------------------------------------------------------------
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61 */
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62 GLOBAL void uirx_ll_getunitdata_req ( T_LL_GETUNITDATA_REQ *ll_getunitdata_req )
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63 {
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64 T_LL_UNITDATA_IND *ll_unitdata_ind;
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65
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66 TRACE_FUNCTION( "ll_getunitdata_req" );
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67
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68 SWITCH_LLC (ll_getunitdata_req->sapi);
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69
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70 TRACE_1_PARA("s:%d", ll_getunitdata_req->sapi );
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71
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72 switch (GET_STATE(UIRX))
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73 {
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74 case UIRX_TLLI_UNASSIGNED_NOT_READY:
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75 PFREE (ll_getunitdata_req);
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76 SET_STATE (UIRX, UIRX_TLLI_UNASSIGNED_READY);
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77 break;
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78
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79 case UIRX_ADM_NOT_READY:
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80 PFREE (ll_getunitdata_req);
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81
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82 /*
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83 * First check, if already a frame is waiting.
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84 */
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85 if (uirx_queue_retrieve (&ll_unitdata_ind))
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86 {
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87 /*
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88 * A frame is waiting. Send primitive LL-UNITDATA-IND
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89 * to either SNDCP or GSMS, depending on the SAPI (GMM
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90 * uses now flow control!).
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91 */
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92 switch (ll_unitdata_ind->sapi)
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93 {
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94 case LL_SAPI_3:
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95 case LL_SAPI_5:
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96 case LL_SAPI_9:
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97 case LL_SAPI_11:
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98 TRACE_3_OUT_PARA("s:%d len:%d c:%d", ll_unitdata_ind->sapi,
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99 BYTELEN(ll_unitdata_ind->sdu.l_buf),
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100 ll_unitdata_ind->cipher);
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101 PSEND (hCommSNDCP, ll_unitdata_ind);
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102 break;
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103
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104 case LL_SAPI_7:
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105 #ifdef LL_2to1
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106 TRACE_PRIM_TO("MM");
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107 TRACE_3_OUT_PARA("s:%d len:%d c:%d", ll_unitdata_ind->sapi,
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108 BYTELEN(ll_unitdata_ind->sdu.l_buf),
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109 ll_unitdata_ind->cipher);
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110 PSEND (hCommMM, ll_unitdata_ind);
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111 break;
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112 #else
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113 TRACE_PRIM_TO("GSMS");
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114 TRACE_3_OUT_PARA("s:%d len:%d c:%d", ll_unitdata_ind->sapi,
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115 BYTELEN(ll_unitdata_ind->sdu.l_buf),
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
116 ll_unitdata_ind->cipher);
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117 PSEND (hCommGSMS, ll_unitdata_ind);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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118 break;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
119 #endif
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parents:
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120
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
121 default:
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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122 PFREE (ll_unitdata_ind);
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parents:
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123 TRACE_ERROR ("Invalid SAPI value");
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
124 break;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
125 }
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
126 }
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
127 else
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
128 {
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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129 /*
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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130 * No frame is waiting. Allow straight forwarding
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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131 * of the next received frame.
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parents:
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132 */
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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133 SET_STATE (UIRX, UIRX_ADM_READY);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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134 }
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
135 break;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
136
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
137 default:
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
138 PFREE (ll_getunitdata_req);
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
139 TRACE_ERROR( "LL_GETUNITDATA_REQ unexpected" );
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
140 break;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
141 }
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
142
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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143 } /* uirx_ll_getunitdata_req() */