FreeCalypso > hg > fc-magnetite

annotate src/g23m-gprs/llc/llc_itxt.c @ 640:16eb1b9640dc

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target gtm900 renamed to gtm900mgc2 This change reflects the fact that the build target in question supports MGC2GSMT hardware only, and will NOT work on other hw that confusing bears the same end user name of GTM900, neither the LoCosto-based GTM900-C nor the Calypso-based MG01GSMT that has a different and incompatible RFFE. If we ever get our hands on a piece of MG01GSMT hw and add support for it, that other target will be named gtm900mg01.
author Mychaela Falconia <falcon@freecalypso.org>
date Fri, 31 Jan 2020 00:46:07 +0000
parents 219afcfc6250
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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 (T201-statemachine)
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20 +-----------------------------------------------------------------------------
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21 */
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22
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23 #ifndef LLC_ITXT_C
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24 #define LLC_ITXT_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_itxf.h" /* to get local function definitions */
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42 #include "llc_llmes.h" /* to get LLME signal definitions */
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43 #include "llc_irxs.h" /* to get ITX signal definitions */
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44
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45
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46 /*==== CONST ================================================================*/
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47
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48 /*==== LOCAL VARS ===========================================================*/
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49
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50 /*==== PRIVATE FUNCTIONS ====================================================*/
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51
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52 /*==== PUBLIC FUNCTIONS =====================================================*/
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53
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54
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55 /*
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56 +------------------------------------------------------------------------------
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57 | Function : itx_T201_start
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58 +------------------------------------------------------------------------------
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59 | Description : This procedure starts timer T201 for the current SAPI.
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60 |
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61 | Parameters :
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62 +------------------------------------------------------------------------------
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63 */
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64 GLOBAL void itx_T201_start (T_TIME length)
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65 {
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66 TRACE_FUNCTION( "itx_T201_start" );
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67
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68 /*
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69 * Start timer T201 for the current SAPI.
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70 */
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71 #ifdef _SIMULATION_
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72 /*
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73 * In simulation mode, use always a timer value of 5 seconds.
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74 */
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75 vsi_t_start (VSI_CALLER
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76 (USHORT)(TIMER_T201_BASE + IMAP(llc_data->current_sapi)), 5000);
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77 #else
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78 vsi_t_start (VSI_CALLER
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79 (USHORT)(TIMER_T201_BASE + IMAP(llc_data->current_sapi)), length);
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80 #endif /* _SIMULATION_ */
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81
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82 return;
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83 } /* itx_T201_start() */
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84
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85
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86 /*
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87 +------------------------------------------------------------------------------
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88 | Function : itx_T201_stop
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89 +------------------------------------------------------------------------------
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90 | Description : This procedure stops timer T201 for the current SAPI.
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91 |
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92 | Parameters :
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93 +------------------------------------------------------------------------------
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94 */
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95 GLOBAL void itx_T201_stop (void)
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96 {
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97 TRACE_FUNCTION( "itx_T201_stop" );
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98
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99 /*
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100 * Stops timer T201 for the current SAPI.
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101 */
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102 vsi_t_stop (VSI_CALLER
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103 (USHORT)(TIMER_T201_BASE + IMAP(llc_data->current_sapi)));
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104
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105 return;
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106 } /* itx_T201_stop() */
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107
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108
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109
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110 /*
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111 +------------------------------------------------------------------------------
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112 | Function : itx_timer_t201
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113 +------------------------------------------------------------------------------
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114 | Description : Handles expiry of timer T201. This function is called from
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115 | pei_timeout().
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116 |
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117 | Parameters : sapi - indicates the SAPI for which the timer has expired
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118 |
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119 +------------------------------------------------------------------------------
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120 */
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121 GLOBAL void itx_timer_t201 (UBYTE sapi)
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122 {
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123 TRACE_FUNCTION( "itx_timer_t201" );
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124
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125 TRACE_0_INFO("T201 EXPIRED" );
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126
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127 SWITCH_LLC (sapi);
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128
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129 switch (GET_STATE(ITX))
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130 {
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131 case ITX_ABM:
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132 /*
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133 * If a frame is associated with T201, increment the
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134 * retransmission counter and if below N200, restart
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135 * T201. Else initate the ABM-Re-Establish procedure.
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136 */
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137 if ( llc_data->itx->t201_entry != NULL)
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138 {
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139 llc_data->itx->t201_entry->status = IQ_RETR_FRAME;
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140
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141 if ( llc_data->itx->t201_entry->n_retr <= *(llc_data->n200) )
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142 {
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143 TIMERSTART (T201, llc_data->t200->length);
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144 itx_send_next_frame (ABIT_SET_REQ);
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145 }
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parents:
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146 else
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147 {
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148 /*
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149 * Initate ABM Re-Establish procedure. The state change
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150 * will be done by the reestablish procedure later.
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151 */
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152 sig_itx_llme_reest_ind (LLGMM_ERRCS_ACK_NO_PEER_RES_REEST);
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153 }
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parents:
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154 }
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parents:
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155 /* SET_STATE (ITX, SAME_STATE); */
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parents:
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156 break;
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parents:
diff changeset
157
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parents:
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158 case ITX_ABM_PEER_BUSY:
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159 /*
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160 * If the Peer busy retransmission counter is below N200
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parents:
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161 * restart T201 and send an appropriated S frame. Else
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parents:
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162 * initate the ABM-Re-Establish procedure.
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parents:
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163 */
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parents:
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164 if ( llc_data->itx->n_pb_retr < *(llc_data->n200) )
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parents:
diff changeset
165 {
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parents:
diff changeset
166 TIMERSTART (T201, llc_data->t200->length);
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parents:
diff changeset
167 sig_itx_irx_s_frame_req (ABIT_SET_REQ);
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parents:
diff changeset
168 llc_data->itx->n_pb_retr += 1;
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parents:
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169 }
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parents:
diff changeset
170 else
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
171 {
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parents:
diff changeset
172 sig_itx_llme_reest_ind (LLGMM_ERRCS_PEER_BUSY_REEST);
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parents:
diff changeset
173 }
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parents:
diff changeset
174 /* SET_STATE (ITX, SAME_STATE); */
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parents:
diff changeset
175 break;
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parents:
diff changeset
176
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
177 default:
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
178 TRACE_ERROR( "T201 unexpected" );
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parents:
diff changeset
179 break;
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parents:
diff changeset
180 }
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parents:
diff changeset
181
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parents:
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182 } /* itx_timer_t201() */