FreeCalypso > hg > fc-tourmaline
annotate src/g23m-gprs/sm/sm_user_plane_control.c @ 233:eacfad198b8b
give higher priority to FCHG task
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Sat, 01 May 2021 10:17:16 +0000 |
parents | fa8dc04885d8 |
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rev | line source |
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1
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1 /*---------------------------------------------------------------------------- |
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2 | Project : 3G PS |
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3 | Module : SM |
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4 +----------------------------------------------------------------------------- |
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5 | Copyright 2003 Texas Instruments. |
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6 | All rights reserved. |
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7 | |
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8 | This file is confidential and a trade secret of Texas |
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9 | Instruments . |
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10 | The receipt of or possession of this file does not convey |
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11 | any rights to reproduce or disclose its contents or to |
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12 | manufacture, use, or sell anything it may describe, in |
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13 | whole, or in part, without the specific written consent of |
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14 | Texas Instruments. |
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15 +----------------------------------------------------------------------------- |
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16 | Purpose: User Plane Control state machine implementation in the SM entity. |
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17 | For design details, see: |
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18 | 8010.908 SM Detailed Specification |
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19 +---------------------------------------------------------------------------*/ |
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20 |
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21 /*==== DECLARATION CONTROL =================================================*/ |
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22 |
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23 /*==== INCLUDES =============================================================*/ |
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24 |
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25 #include "sm.h" |
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26 |
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27 #include "sm_user_plane_control.h" |
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28 #include "sm_context_control.h" |
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29 |
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30 #include "sm_upm_output_handler.h" |
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31 |
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32 /*==== CONSTS ===============================================================*/ |
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33 |
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34 /*==== TYPES ================================================================*/ |
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35 |
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36 typedef void (*T_SM_USER_PLANE_CONTROL_TRANSITION_FUNC)(struct T_SM_CONTEXT_DATA *ptr_context_data, /*@null@*/ void *data); |
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37 |
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38 typedef struct { |
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39 #ifdef DEBUG |
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40 T_SM_USER_PLANE_CONTROL_EVENT event; |
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41 #endif /* DEBUG */ |
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42 T_SM_USER_PLANE_CONTROL_TRANSITION_FUNC func; |
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43 } T_SM_USER_PLANE_CONTROL_TRANSITION; |
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44 |
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45 /*==== LOCALS ===============================================================*/ |
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46 |
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47 static void state_event_error(struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data); |
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48 static void ignored (struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data); |
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49 static void handle_activate_start(struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data); |
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50 static void handle_activate_complete(struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data); |
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51 static void handle_deactivate(struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data); |
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52 static void handle_deactivate_local(struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data); |
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53 static void handle_modify(struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data); |
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54 static void handle_sm_activate_res(struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data); |
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55 static void handle_sm_deactivate_res(struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data); |
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56 static void handle_sm_modify_res(struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data); |
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57 |
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58 /*********************************************************************** |
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59 * State/Transition Table |
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60 */ |
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61 static const T_SM_USER_PLANE_CONTROL_TRANSITION |
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62 transition[SM_USER_PLANE_CONTROL_NUMBER_OF_STATES][SM_USER_PLANE_CONTROL_NUMBER_OF_EVENTS] = |
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63 { |
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64 { /* S0: SM USER PLANE DEACTIVATED */ |
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65 M_TRANSITION(SM_P_SM_ACTIVATE_RES, state_event_error), |
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66 M_TRANSITION(SM_P_SM_DEACTIVATE_RES, ignored), |
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67 M_TRANSITION(SM_P_SM_MODIFY_RES, state_event_error), |
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68 M_TRANSITION(SM_I_USER_PLANE_ACTIVATE_START, handle_activate_start), |
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69 M_TRANSITION(SM_I_USER_PLANE_ACTIVATE_COMPLETE, state_event_error), |
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70 M_TRANSITION(SM_I_USER_PLANE_DEACTIVATE_LOCAL, ignored), |
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71 M_TRANSITION(SM_I_USER_PLANE_MODIFY, state_event_error), |
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72 M_TRANSITION(SM_I_USER_PLANE_DEACTIVATE, ignored) |
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73 }, |
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74 { /* S1: SM USER PLANE ACTIVATE STARTED */ |
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75 M_TRANSITION(SM_P_SM_ACTIVATE_RES, state_event_error), |
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76 M_TRANSITION(SM_P_SM_DEACTIVATE_RES, state_event_error), |
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77 M_TRANSITION(SM_P_SM_MODIFY_RES, state_event_error), |
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78 M_TRANSITION(SM_I_USER_PLANE_ACTIVATE_START, state_event_error), |
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79 M_TRANSITION(SM_I_USER_PLANE_ACTIVATE_COMPLETE, handle_activate_complete), |
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80 M_TRANSITION(SM_I_USER_PLANE_DEACTIVATE_LOCAL, handle_deactivate_local), |
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81 M_TRANSITION(SM_I_USER_PLANE_MODIFY, state_event_error), |
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82 M_TRANSITION(SM_I_USER_PLANE_DEACTIVATE, handle_deactivate) |
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83 }, |
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84 { /* S2: SM USER PLANE ACTIVATE COMPLETING */ |
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85 M_TRANSITION(SM_P_SM_ACTIVATE_RES, handle_sm_activate_res), |
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86 M_TRANSITION(SM_P_SM_DEACTIVATE_RES, state_event_error), |
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87 M_TRANSITION(SM_P_SM_MODIFY_RES, state_event_error), |
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88 M_TRANSITION(SM_I_USER_PLANE_ACTIVATE_START, state_event_error), |
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89 M_TRANSITION(SM_I_USER_PLANE_ACTIVATE_COMPLETE, state_event_error), |
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90 M_TRANSITION(SM_I_USER_PLANE_DEACTIVATE_LOCAL, handle_deactivate_local), |
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91 M_TRANSITION(SM_I_USER_PLANE_MODIFY, state_event_error), |
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92 M_TRANSITION(SM_I_USER_PLANE_DEACTIVATE, handle_deactivate) |
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93 }, |
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94 { /* S3: SM USER PLANE ACTIVATED */ |
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95 M_TRANSITION(SM_P_SM_ACTIVATE_RES, state_event_error), |
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96 M_TRANSITION(SM_P_SM_DEACTIVATE_RES, state_event_error), |
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97 M_TRANSITION(SM_P_SM_MODIFY_RES, state_event_error), |
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98 M_TRANSITION(SM_I_USER_PLANE_ACTIVATE_START, state_event_error), |
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99 M_TRANSITION(SM_I_USER_PLANE_ACTIVATE_COMPLETE, state_event_error), |
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100 M_TRANSITION(SM_I_USER_PLANE_DEACTIVATE_LOCAL, handle_deactivate_local), |
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101 M_TRANSITION(SM_I_USER_PLANE_MODIFY, handle_modify), |
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102 M_TRANSITION(SM_I_USER_PLANE_DEACTIVATE, handle_deactivate) |
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103 }, |
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104 { /* S4: SM USER PLANE MODIFYING */ |
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105 M_TRANSITION(SM_P_SM_ACTIVATE_RES, state_event_error), |
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106 M_TRANSITION(SM_P_SM_DEACTIVATE_RES, state_event_error), |
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107 M_TRANSITION(SM_P_SM_MODIFY_RES, handle_sm_modify_res), |
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108 M_TRANSITION(SM_I_USER_PLANE_ACTIVATE_START, state_event_error), |
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109 M_TRANSITION(SM_I_USER_PLANE_ACTIVATE_COMPLETE, state_event_error), |
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110 M_TRANSITION(SM_I_USER_PLANE_DEACTIVATE_LOCAL, handle_deactivate_local), |
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111 M_TRANSITION(SM_I_USER_PLANE_MODIFY, state_event_error), |
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112 M_TRANSITION(SM_I_USER_PLANE_DEACTIVATE, handle_deactivate) |
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113 }, |
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114 { /* S5: SM USER PLANE DEACTIVATING */ |
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115 M_TRANSITION(SM_P_SM_ACTIVATE_RES, state_event_error), |
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116 M_TRANSITION(SM_P_SM_DEACTIVATE_RES, handle_sm_deactivate_res), |
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117 M_TRANSITION(SM_P_SM_MODIFY_RES, state_event_error), |
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118 M_TRANSITION(SM_I_USER_PLANE_ACTIVATE_START, state_event_error), |
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119 M_TRANSITION(SM_I_USER_PLANE_ACTIVATE_COMPLETE, state_event_error), |
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120 M_TRANSITION(SM_I_USER_PLANE_DEACTIVATE_LOCAL, handle_deactivate_local), |
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121 M_TRANSITION(SM_I_USER_PLANE_MODIFY, state_event_error), |
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122 M_TRANSITION(SM_I_USER_PLANE_DEACTIVATE, ignored) |
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123 } |
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124 }; |
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125 |
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126 /*==== PRIVATE FUNCTIONS ====================================================*/ |
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127 |
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128 /* |
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129 +------------------------------------------------------------------------------ |
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130 | Function : state_event_error |
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131 +------------------------------------------------------------------------------ |
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132 | Description : General function used to report state event errors. |
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133 | |
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134 | Parameters : context - Not used |
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135 | data - Not used |
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136 +------------------------------------------------------------------------------ |
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137 */ |
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138 static void state_event_error(/*@unused@*/ struct T_SM_CONTEXT_DATA *context, /*@unused@*/ /*@null@*/ void *data) |
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139 { |
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140 (void)TRACE_ERROR("SM User Plane Control: STATE EVENT ERROR!"); |
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141 } |
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142 |
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143 /* |
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144 +------------------------------------------------------------------------------ |
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145 | Function : ignored |
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146 +------------------------------------------------------------------------------ |
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147 | Description : General function used for transitions that shall be ignored |
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148 | |
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149 | Parameters : context - Not used |
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150 | data - Not used |
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151 +------------------------------------------------------------------------------ |
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152 */ |
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153 static void ignored(/*@unused@*/ struct T_SM_CONTEXT_DATA *context, /*@unused@*/ /*@null@*/ void *data) |
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154 { |
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155 (void)TRACE_FUNCTION("SM User Plane Control: Event ignored."); |
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156 } |
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157 |
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158 /* |
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159 +------------------------------------------------------------------------------ |
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160 | Function : handle_activate_start |
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161 +------------------------------------------------------------------------------ |
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162 | Description : Handle event SM_I_USER_PLANE_ACTIVATE_START in S0 |
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163 | |
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164 | Parameters : context - Context data |
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165 | data - Not used |
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166 +------------------------------------------------------------------------------ |
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167 */ |
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168 static void handle_activate_start(struct T_SM_CONTEXT_DATA *context, /*@unused@*/ /*@null@*/ void *data) |
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169 { |
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170 (void)TRACE_FUNCTION("handle_activate_start"); |
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171 |
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172 /* Send SM_ACTIVATE_STARTED_IND */ |
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173 send_sm_activate_started_ind(context); |
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174 |
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175 /* Go to state SM USER PLANE ACTIVATE STARTED */ |
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176 context->user_plane_control_state = SM_USER_PLANE_ACTIVATE_STARTED; |
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177 } |
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178 |
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179 /* |
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180 +------------------------------------------------------------------------------ |
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181 | Function : handle_activate_complete |
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182 +------------------------------------------------------------------------------ |
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183 | Description : Handle event SM_I_USER_PLANE_ACTIVATE_COMPLETE in S1 |
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184 | |
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185 | Parameters : context - Context data |
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186 | data - Not used |
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187 +------------------------------------------------------------------------------ |
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188 */ |
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189 static void handle_activate_complete(struct T_SM_CONTEXT_DATA *context, /*@unused@*/ /*@null@*/ void *data) |
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190 { |
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191 (void)TRACE_FUNCTION("handle_activate_complete"); |
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192 |
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193 /* Send SM_ACTIVATE_IND */ |
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194 send_sm_activate_ind(context); |
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195 |
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196 /* Go to state SM USER PLANE ACTIVATE COMPLETING */ |
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197 context->user_plane_control_state = SM_USER_PLANE_ACTIVATE_COMPLETING; |
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198 } |
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199 |
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200 /* |
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201 +------------------------------------------------------------------------------ |
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202 | Function : handle_modify |
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203 +------------------------------------------------------------------------------ |
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204 | Description : Handle event SM_I_USER_PLANE_MODIFY in S3 |
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205 | |
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206 | Parameters : context - Context data |
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207 | data - Update flags |
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208 +------------------------------------------------------------------------------ |
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209 */ |
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210 static void handle_modify(struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data) |
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211 { |
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212 (void)TRACE_FUNCTION("handle_modify"); |
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213 |
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214 /* Send SM_MODIFY_IND */ |
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215 send_sm_modify_ind(context); |
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216 |
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217 /* Go to state SM USER PLANE MODIFYING */ |
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218 context->user_plane_control_state = SM_USER_PLANE_MODIFYING; |
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219 } |
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220 |
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221 /* |
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222 +------------------------------------------------------------------------------ |
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223 | Function : handle_deactivate |
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224 +------------------------------------------------------------------------------ |
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225 | Description : Handle event SM_I_USER_PLANE_DEACTIVATE in any state |
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226 | |
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227 | Parameters : context - Context data |
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228 | data - PS_rel_ind |
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229 +------------------------------------------------------------------------------ |
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230 */ |
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231 static void handle_deactivate(struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data) |
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232 { |
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233 (void)TRACE_FUNCTION("handle_deactivate"); |
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234 |
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235 /* Send SM_DEACTIVATE_IND with local parameter taken from input */ |
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236 send_sm_deactivate_ind(sm_nsapi2nsapi_set(context->nsapi), |
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237 (data == NULL ? PS_REL_IND_NO : PS_REL_IND_YES)); |
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238 |
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239 /* Go to state SM USER PLANE DEACTIVATING */ |
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240 context->user_plane_control_state = SM_USER_PLANE_DEACTIVATING; |
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241 } |
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242 |
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243 /* |
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244 +------------------------------------------------------------------------------ |
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245 | Function : handle_deactivate_local |
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246 +------------------------------------------------------------------------------ |
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247 | Description : Handle event SM_I_USER_PLANE_DEACTIVATE_LOCAL in any state |
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248 | |
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249 | Parameters : context - Context data |
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250 | data - BOOL (TRUE = send SM_DEACTIVATE_IND) |
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251 +------------------------------------------------------------------------------ |
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252 */ |
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253 static void handle_deactivate_local(struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data) |
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254 { |
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255 (void)TRACE_FUNCTION("handle_deactivate_local"); |
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256 |
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257 if (data) |
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258 { |
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259 /* Send SM_DEACTIVATE_IND with local parameter true */ |
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260 send_sm_deactivate_ind(sm_nsapi2nsapi_set(context->nsapi), PS_REL_IND_YES); |
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261 |
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262 /* Go to state SM USER PLANE DEACTIVATING */ |
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263 context->user_plane_control_state = SM_USER_PLANE_DEACTIVATING; |
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264 } else { |
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265 /* Go to state SM USER PLANE DEACTIVATED */ |
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266 context->user_plane_control_state = SM_USER_PLANE_DEACTIVATED; |
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267 } |
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268 } |
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269 |
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270 /* |
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271 +------------------------------------------------------------------------------ |
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272 | Function : handle_sm_activate_res |
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273 +------------------------------------------------------------------------------ |
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274 | Description : Handle event SM_P_SM_ACTIVATE_RES in S2 |
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275 | |
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276 | Parameters : context - Context data |
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277 | data - Not used |
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278 +------------------------------------------------------------------------------ |
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279 */ |
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280 static void handle_sm_activate_res(struct T_SM_CONTEXT_DATA *context, /*@unused@*/ /*@null@*/ void *data) |
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281 { |
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282 (void)TRACE_FUNCTION("handle_sm_activate_res"); |
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283 |
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284 /* Go to state SM USER PLANE ACTIVATED */ |
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285 context->user_plane_control_state = SM_USER_PLANE_ACTIVATED; |
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286 |
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287 /* If comp params is sent by UPM copy it to context. When SMREG_ACTIVATE_CNF |
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288 * primitive is composed this values are copied. |
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289 */ |
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290 if ( (((T_SM_ACTIVATE_RES*)data)->v_comp_params == TRUE) ) |
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291 { |
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292 memcpy(&context->comp_params, &((T_SM_ACTIVATE_RES*)data)->comp_params, |
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293 sizeof(T_NAS_comp_params)); |
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294 } else { |
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295 memset(&context->comp_params, 0, sizeof(T_NAS_comp_params)); |
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296 } |
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297 /* Notify Context Control of activation completion */ |
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298 sm_context_control(context, SM_I_USER_PLANE_ACTIVATED, NULL); |
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299 } |
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300 |
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301 /* |
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302 +------------------------------------------------------------------------------ |
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303 | Function : handle_sm_deactivate_res |
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304 +------------------------------------------------------------------------------ |
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305 | Description : Handle event SM_P_SM_DEACTIVATE_RES in S5 |
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306 | |
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307 | Parameters : context - Context data |
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308 | data - Not used |
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309 +------------------------------------------------------------------------------ |
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310 */ |
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311 static void handle_sm_deactivate_res(struct T_SM_CONTEXT_DATA *context, /*@unused@*/ /*@null@*/ void *data) |
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312 { |
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313 (void)TRACE_FUNCTION("handle_sm_deactivate_res"); |
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314 |
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315 /* Go to state SM USER PLANE DEACTIVATED */ |
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316 context->user_plane_control_state = SM_USER_PLANE_DEACTIVATED; |
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317 |
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318 /* Notify Context Control of deactivation completion */ |
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319 sm_context_control(context, SM_I_USER_PLANE_DEACTIVATED, NULL); |
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320 } |
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321 |
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322 /* |
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323 +------------------------------------------------------------------------------ |
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324 | Function : handle_sm_modify_res |
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325 +------------------------------------------------------------------------------ |
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326 | Description : Handle event SM_P_SM_MODIFY_RES in S4 |
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327 | |
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328 | Parameters : context - Context data |
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329 | data - Not used |
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330 +------------------------------------------------------------------------------ |
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331 */ |
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332 static void handle_sm_modify_res(struct T_SM_CONTEXT_DATA *context, /*@unused@*/ /*@null@*/ void *data) |
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333 { |
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334 (void)TRACE_FUNCTION("handle_sm_modify_res"); |
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335 |
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336 /* Go to state SM USER PLANE ACTIVATED */ |
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337 context->user_plane_control_state = SM_USER_PLANE_ACTIVATED; |
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338 |
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339 /* Notify Context Control of modification completion */ |
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340 sm_context_control(context, SM_I_USER_PLANE_MODIFIED, NULL); |
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341 } |
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342 |
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343 /*==== PUBLIC FUNCTIONS =====================================================*/ |
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344 |
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345 /* |
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346 +------------------------------------------------------------------------------ |
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347 | Function : sm_user_plane_control_init |
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348 +------------------------------------------------------------------------------ |
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349 | Description : User Plane Control state machine initialization function |
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350 |
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351 | Parameters : context - Context data |
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352 +------------------------------------------------------------------------------ |
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353 */ |
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354 void sm_user_plane_control_init(struct T_SM_CONTEXT_DATA *context) |
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355 { |
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356 (void)TRACE_FUNCTION("sm_user_plane_control_init"); |
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357 |
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358 context->user_plane_control_state = SM_USER_PLANE_DEACTIVATED; |
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359 } |
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360 |
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361 /* |
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362 +------------------------------------------------------------------------------ |
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363 | Function : sm_user_plane_control_exit |
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364 +------------------------------------------------------------------------------ |
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365 | Description : User Plane Control state machine exit function |
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366 |
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367 | Parameters : context - Context data |
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368 +------------------------------------------------------------------------------ |
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369 */ |
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370 void sm_user_plane_control_exit(struct T_SM_CONTEXT_DATA *context) |
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371 { |
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372 (void)TRACE_FUNCTION("sm_user_plane_control_exit"); |
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373 |
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374 context->user_plane_control_state = SM_USER_PLANE_DEACTIVATED; |
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375 } |
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376 |
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377 /* |
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378 +------------------------------------------------------------------------------ |
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379 | Function : sm_user_plane_control_state |
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380 +------------------------------------------------------------------------------ |
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381 | Description : Returns a read-only string with the name of the active state. |
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382 |
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383 | Parameters : context - Context data |
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384 +------------------------------------------------------------------------------ |
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385 */ |
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386 #ifdef DEBUG |
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387 /*@observer@*/const char * |
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388 sm_user_plane_control_state(struct T_SM_CONTEXT_DATA *context) |
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389 { |
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390 /*@observer@*/ |
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391 static const char *state_name[SM_USER_PLANE_CONTROL_NUMBER_OF_STATES] = { |
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392 "S0_SM_USER_PLANE_DEACTIVATED", |
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393 "S1_SM_USER_PLANE_ACTIVATE_STARTED", |
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394 "S2_SM_USER_PLANE_ACTIVATE_COMPLETING", |
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395 "S3_SM_USER_PLANE_ACTIVATED", |
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396 "S4_SM_USER_PLANE_MODIFYING", |
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397 "S5_SM_USER_PLANE_DEACTIVATING" |
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398 }; |
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399 |
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400 TRACE_ASSERT(context->user_plane_control_state < SM_USER_PLANE_CONTROL_NUMBER_OF_STATES); |
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401 |
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402 return state_name[(U16)context->user_plane_control_state]; |
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403 } |
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404 #endif |
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405 |
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406 /* |
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407 +------------------------------------------------------------------------------ |
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408 | Function : sm_user_plane_control |
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409 +------------------------------------------------------------------------------ |
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410 | Description : User Plane Control state machine |
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411 | |
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412 | Parameters : context - Context data |
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413 | event - Internal event (see sm_user_plane_control.h) |
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414 | data - Event dependent parameter |
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415 +------------------------------------------------------------------------------ |
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416 */ |
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417 void sm_user_plane_control(struct T_SM_CONTEXT_DATA *context, |
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418 T_SM_USER_PLANE_CONTROL_EVENT event, |
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419 /*@null@*/ void *data) |
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420 { |
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421 #ifdef DEBUG |
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422 const char *old_state_name, *new_state_name; |
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423 T_SM_USER_PLANE_CONTROL_STATE old_state; |
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424 /*@observer@*/ |
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425 static const char *event_name[SM_USER_PLANE_CONTROL_NUMBER_OF_EVENTS] = { |
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426 "SM_P_SM_ACTIVATE_RES", |
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427 "SM_P_SM_DEACTIVATE_RES", |
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428 "SM_P_SM_MODIFY_RES", |
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429 "SM_I_USER_PLANE_ACTIVATE_START", |
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430 "SM_I_USER_PLANE_ACTIVATE_COMPLETE", |
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431 "SM_I_USER_PLANE_DEACTIVATE_LOCAL", |
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432 "SM_I_USER_PLANE_MODIFY", |
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433 "SM_I_USER_PLANE_DEACTIVATE" |
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434 }; |
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435 |
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436 TRACE_ASSERT(event < SM_USER_PLANE_CONTROL_NUMBER_OF_EVENTS); |
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|
437 |
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438 old_state = context->user_plane_control_state; |
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439 old_state_name = sm_user_plane_control_state(context); |
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|
440 |
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441 if (transition[(U16)old_state][(U16)event].event != event) { |
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442 (void)TRACE_ERROR("Event table error in sm_user_plane_control!"); |
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443 } |
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444 #endif /* DEBUG */ |
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|
445 |
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|
446 transition[(U16)context->user_plane_control_state] |
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447 [(U16)event].func(context, data); |
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|
448 |
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|
449 #ifdef DEBUG |
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450 new_state_name = sm_user_plane_control_state(context); |
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|
451 |
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|
452 (void)TRACE_EVENT_P4("SM U-PLANE #%d: %s => %s to %s", context->nsapi, |
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453 event_name[(U16)event], old_state_name, new_state_name); |
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454 #endif /* DEBUG */ |
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455 } |
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456 |
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|
457 /*==== END OF FILE ==========================================================*/ |