FreeCalypso > hg > fc-selenite
annotate src/nucleus/tms.c @ 163:a911ac771094
board preprocessor conditionals: prep for more FC hw in the future
Please see the corresponding change in fc-magnetite for the explanation.
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Mon, 01 Apr 2019 01:20:03 +0000 |
parents | 0f80e1e4dce4 |
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rev | line source |
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1 /*************************************************************************/ |
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2 /* */ |
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3 /* Copyright Mentor Graphics Corporation 2002 */ |
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4 /* All Rights Reserved. */ |
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5 /* */ |
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6 /* THIS WORK CONTAINS TRADE SECRET AND PROPRIETARY INFORMATION WHICH IS */ |
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7 /* THE PROPERTY OF MENTOR GRAPHICS CORPORATION OR ITS LICENSORS AND IS */ |
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8 /* SUBJECT TO LICENSE TERMS. */ |
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9 /* */ |
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10 /*************************************************************************/ |
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11 |
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12 /*************************************************************************/ |
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13 /* */ |
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14 /* FILE NAME VERSION */ |
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15 /* */ |
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16 /* tms.c Nucleus PLUS 1.14 */ |
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17 /* */ |
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18 /* COMPONENT */ |
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19 /* */ |
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20 /* TM - Timer Management */ |
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21 /* */ |
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22 /* DESCRIPTION */ |
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23 /* */ |
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24 /* This file contains supplemental routines for the timer */ |
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25 /* management component. */ |
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26 /* */ |
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27 /* DATA STRUCTURES */ |
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28 /* */ |
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29 /* None */ |
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30 /* */ |
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31 /* FUNCTIONS */ |
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32 /* */ |
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33 /* TMS_Create_Timer Create an application timer */ |
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34 /* TMS_Delete_Timer Delete an application timer */ |
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35 /* TMS_Reset_Timer Reset application timer */ |
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36 /* TMS_Control_Timer Enable/Disable application */ |
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37 /* timer */ |
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38 /* */ |
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39 /* DEPENDENCIES */ |
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40 /* */ |
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41 /* cs_extr.h Common Service functions */ |
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42 /* tc_extr.h Thread Control functions */ |
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43 /* tm_extr.h Timer functions */ |
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44 /* hi_extr.h History functions */ |
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45 /* */ |
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46 /* HISTORY */ |
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47 /* */ |
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48 /* DATE REMARKS */ |
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49 /* */ |
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50 /* 03-01-1994 Created initial version 1.1 from */ |
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51 /* previous version of TMC.C */ |
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52 /* */ |
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53 /* 03-18-1994 Verified version 1.1 */ |
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54 /* 04-17-1996 updated to version 1.2 */ |
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55 /* 03-24-1998 Released version 1.3. */ |
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56 /* 03-26-1999 Released 1.11m (new release */ |
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57 /* numbering scheme) */ |
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58 /* 04-17-2002 Released version 1.13m */ |
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59 /* 11-07-2002 Released version 1.14 */ |
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60 /*************************************************************************/ |
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61 #define NU_SOURCE_FILE |
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62 |
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63 |
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64 #include "cs_extr.h" /* Common service functions */ |
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65 #include "tc_extr.h" /* Thread control functions */ |
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66 #include "tm_extr.h" /* Timer functions */ |
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67 #include "hi_extr.h" /* History functions */ |
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68 #include "profiler.h" /* ProView interface */ |
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69 |
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70 |
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71 /* Define external inner-component global data references. */ |
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72 |
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73 extern CS_NODE *TMD_Created_Timers_List; |
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74 extern UNSIGNED TMD_Total_Timers; |
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75 extern TM_TCB *TMD_Active_Timers_List; |
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76 extern INT TMD_Active_List_Busy; |
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77 extern TC_PROTECT TMD_Created_List_Protect; |
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78 |
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79 |
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80 /* Define internal function prototypes. */ |
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81 |
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82 VOID TMC_Start_Timer(TM_TCB *timer, UNSIGNED time); |
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83 VOID TMC_Stop_Timer(TM_TCB *timer); |
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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 /* */ |
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89 /* FUNCTION */ |
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90 /* */ |
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91 /* TMS_Create_Timer */ |
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92 /* */ |
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93 /* DESCRIPTION */ |
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94 /* */ |
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95 /* This function creates an application timer and places it on the */ |
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96 /* list of created timers. The timer is activated if designated by */ |
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97 /* the enable parameter. */ |
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98 /* */ |
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99 /* CALLED BY */ |
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100 /* */ |
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101 /* Application */ |
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102 /* TMSE_Create_Timer Error checking shell */ |
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103 /* */ |
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104 /* CALLS */ |
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105 /* */ |
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106 /* CSC_Place_On_List Add node to linked-list */ |
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107 /* [HIC_Make_History_Entry] Make entry in history log */ |
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108 /* [TCT_Check_Stack] Stack checking function */ |
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109 /* TCT_Protect Data structure protect */ |
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110 /* TCT_Unprotect Un-protect data structure */ |
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111 /* TMS_Control_Timer Enable the new timer */ |
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112 /* */ |
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113 /* INPUTS */ |
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114 /* */ |
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115 /* timer_ptr Timer control block pointer */ |
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116 /* name Timer name */ |
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117 /* expiration_routine Timer expiration routine */ |
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118 /* id Timer expiration ID */ |
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119 /* initial_time Initial expiration time */ |
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120 /* reschedule_time Reschedule expiration time */ |
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121 /* enable Automatic enable option */ |
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122 /* */ |
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123 /* OUTPUTS */ |
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124 /* */ |
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125 /* NU_SUCCESS */ |
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126 /* */ |
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127 /* HISTORY */ |
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128 /* */ |
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129 /* DATE REMARKS */ |
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130 /* */ |
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131 /* 03-01-1993 Created initial version 1.0 */ |
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132 /* 04-19-1993 Verified version 1.0 */ |
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133 /* 03-01-1994 Changed function prototype, */ |
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134 /* resulting in version 1.1 */ |
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135 /* */ |
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136 /* 03-18-1994 Verified version 1.1 */ |
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137 /* */ |
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138 /*************************************************************************/ |
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139 STATUS TMS_Create_Timer(NU_TIMER *timer_ptr, CHAR *name, |
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140 VOID (*expiration_routine)(UNSIGNED), UNSIGNED id, |
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141 UNSIGNED initial_time, UNSIGNED reschedule_time, OPTION enable) |
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142 { |
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143 |
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144 R1 TM_APP_TCB *timer; /* Timer control block ptr */ |
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145 INT i; /* Working index variable */ |
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146 NU_SUPERV_USER_VARIABLES |
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147 |
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148 /* Switch to supervisor mode */ |
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149 NU_SUPERVISOR_MODE(); |
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150 |
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151 /* Move input timer pointer into internal pointer. */ |
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152 timer = (TM_APP_TCB *) timer_ptr; |
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153 |
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154 |
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155 #ifdef NU_ENABLE_STACK_CHECK |
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156 |
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157 /* Call stack checking function to check for an overflow condition. */ |
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158 TCT_Check_Stack(); |
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159 |
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160 #endif |
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161 |
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162 #ifdef NU_ENABLE_HISTORY |
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163 |
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164 /* Make an entry that corresponds to this function in the system history |
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165 log. */ |
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166 HIC_Make_History_Entry(NU_CREATE_TIMER_ID, (UNSIGNED) timer, |
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167 (UNSIGNED) name, (UNSIGNED) expiration_routine); |
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168 |
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169 #endif |
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170 |
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171 /* First, clear the timer ID just in case it is an old Timer |
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172 Control Block. */ |
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173 timer -> tm_id = 0; |
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174 |
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175 /* Fill in the timer name. */ |
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176 for (i = 0; i < NU_MAX_NAME; i++) |
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177 timer -> tm_name[i] = name[i]; |
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178 |
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179 /* Load the timer with the appropriate values. */ |
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180 timer -> tm_expiration_routine = expiration_routine; |
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181 timer -> tm_expiration_id = id; |
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182 timer -> tm_expirations = 0; |
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183 timer -> tm_initial_time = initial_time; |
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184 timer -> tm_reschedule_time = reschedule_time; |
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185 timer -> tm_actual_timer.tm_timer_type = TM_APPL_TIMER; |
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186 timer -> tm_enabled = NU_FALSE; |
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187 |
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188 /* Initialize link pointers. */ |
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189 timer -> tm_created.cs_previous = NU_NULL; |
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190 timer -> tm_created.cs_next = NU_NULL; |
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191 timer -> tm_actual_timer.tm_next_timer = NU_NULL; |
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192 timer -> tm_actual_timer.tm_previous_timer= NU_NULL; |
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193 timer -> tm_actual_timer.tm_information = (VOID *) timer; |
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194 |
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195 /* Protect against access to the list of created timers. */ |
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196 TCT_Protect(&TMD_Created_List_Protect); |
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197 |
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198 /* At this point the timer is completely built. The ID can now be |
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199 set and it can be linked into the created timer list. */ |
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200 timer -> tm_id = TM_TIMER_ID; |
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201 |
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202 /* Link the timer into the list of created timers and increment the |
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203 total number of timers in the system. */ |
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204 CSC_Place_On_List(&TMD_Created_Timers_List, &(timer -> tm_created)); |
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205 TMD_Total_Timers++; |
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206 |
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207 #ifdef INCLUDE_PROVIEW |
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208 _RTProf_DumpTimer(RT_PROF_CREATE_TIMER,timer,RT_PROF_OK); |
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209 #endif |
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210 |
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211 /* Release protection against access to the list of created timers. */ |
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212 TCT_Unprotect(); |
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213 |
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214 /* Determine if the timer should be enabled. */ |
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215 if (enable == NU_ENABLE_TIMER) |
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216 |
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217 /* Activate the timer. */ |
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218 TMS_Control_Timer(timer_ptr, NU_ENABLE_TIMER); |
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219 |
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220 /* Return to user mode */ |
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221 NU_USER_MODE(); |
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222 |
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223 /* Return successful completion. */ |
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224 return(NU_SUCCESS); |
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225 } |
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226 |
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227 |
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228 /*************************************************************************/ |
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229 /* */ |
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230 /* FUNCTION */ |
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231 /* */ |
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232 /* TMS_Delete_Timer */ |
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233 /* */ |
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234 /* DESCRIPTION */ |
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235 /* */ |
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236 /* This function deletes an application timer and removes it from */ |
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237 /* the list of created timers. */ |
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238 /* */ |
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239 /* CALLED BY */ |
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240 /* */ |
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241 /* Application */ |
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242 /* TMSE_Delete_Timer Error checking shell */ |
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243 /* */ |
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244 /* CALLS */ |
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245 /* */ |
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246 /* CSC_Remove_From_List Remove node from list */ |
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247 /* [HIC_Make_History_Entry] Make entry in history log */ |
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248 /* [TCT_Check_Stack] Stack checking function */ |
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249 /* TCT_Protect Protect created list */ |
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250 /* TCT_System_Protect Protect active list */ |
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251 /* TCT_Unprotect Release protection */ |
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252 /* */ |
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253 /* INPUTS */ |
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254 /* */ |
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255 /* timer_ptr Timer control block pointer */ |
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256 /* */ |
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257 /* OUTPUTS */ |
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258 /* */ |
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259 /* NU_NOT_DISABLED Timer not disabled first */ |
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260 /* NU_SUCCESS */ |
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261 /* */ |
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262 /* HISTORY */ |
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263 /* */ |
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264 /* DATE REMARKS */ |
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265 /* */ |
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266 /* 03-01-1993 Created initial version 1.0 */ |
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267 /* 04-19-1993 Verified version 1.0 */ |
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268 /* 03-01-1994 Modified protection logic to use */ |
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269 /* system protection, changed */ |
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270 /* function prototype, resulting */ |
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271 /* in version 1.1 */ |
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272 /* */ |
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273 /* 03-18-1994 Verified version 1.1 */ |
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274 /* */ |
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275 /*************************************************************************/ |
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276 STATUS TMS_Delete_Timer(NU_TIMER *timer_ptr) |
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277 { |
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278 |
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279 TM_APP_TCB *timer; /* Timer control block ptr */ |
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280 STATUS status; /* Completion status */ |
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281 NU_SUPERV_USER_VARIABLES |
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282 |
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283 /* Switch to supervisor mode */ |
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284 NU_SUPERVISOR_MODE(); |
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285 |
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286 /* Move input timer pointer into internal pointer. */ |
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287 timer = (TM_APP_TCB *) timer_ptr; |
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288 |
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289 |
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290 #ifdef NU_ENABLE_STACK_CHECK |
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291 |
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292 /* Call stack checking function to check for an overflow condition. */ |
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293 TCT_Check_Stack(); |
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294 |
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295 #endif |
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296 |
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297 #ifdef NU_ENABLE_HISTORY |
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298 |
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299 /* Make an entry that corresponds to this function in the system history |
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300 log. */ |
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301 HIC_Make_History_Entry(NU_DELETE_TIMER_ID, (UNSIGNED) timer, |
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302 (UNSIGNED) 0, (UNSIGNED) 0); |
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303 |
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304 #endif |
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305 |
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306 /* Initialize the status. */ |
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307 status = NU_SUCCESS; |
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308 |
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309 /* Use system protect to protect the active timer list temporarily. */ |
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310 TCT_System_Protect(); |
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311 |
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312 /* Determine if the timer is currently disabled. */ |
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313 if (timer -> tm_enabled) |
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314 { |
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315 /* Error, indicate to the caller that the timer is currently active. */ |
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316 status = NU_NOT_DISABLED; |
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317 |
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318 #ifdef INCLUDE_PROVIEW |
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319 _RTProf_DumpTimer(RT_PROF_DELETE_TIMER,timer,RT_PROF_FAIL); |
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320 #endif |
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321 |
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322 } |
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323 else |
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324 { |
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325 /* Clear the timer ID. */ |
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326 timer -> tm_id = 0; |
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327 |
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328 #ifdef INCLUDE_PROVIEW |
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329 _RTProf_DumpTimer(RT_PROF_DELETE_TIMER,timer,RT_PROF_OK); |
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330 #endif /* INCLUDE_PROVIEW */ |
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331 |
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332 } |
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333 |
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334 /* Release protection. */ |
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335 TCT_Unprotect(); |
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336 |
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337 /* Determine if an error was detected. */ |
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338 if (status == NU_SUCCESS) |
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339 { |
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340 |
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341 /* Protect against access to the list of created timers. */ |
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342 TCT_Protect(&TMD_Created_List_Protect); |
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343 |
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344 /* Remove the timer from the list of created timers. */ |
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345 CSC_Remove_From_List(&TMD_Created_Timers_List, &(timer -> tm_created)); |
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346 |
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347 /* Decrement the total number of created timers. */ |
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348 TMD_Total_Timers--; |
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349 |
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350 /* Release protection against access to the list of created timers. */ |
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351 TCT_Unprotect(); |
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352 } |
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353 |
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354 /* Return to user mode */ |
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355 NU_USER_MODE(); |
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356 |
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357 /* Return completion status. */ |
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358 return(status); |
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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 /* */ |
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364 /* FUNCTION */ |
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365 /* */ |
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366 /* TMS_Reset_Timer */ |
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367 /* */ |
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368 /* DESCRIPTION */ |
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369 /* */ |
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370 /* This function resets the specified application timer. Note that */ |
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371 /* the timer must be in a disabled state prior to this call. The */ |
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372 /* timer is activated after it is reset if the enable parameter */ |
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373 /* specifies automatic activation. */ |
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374 /* */ |
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375 /* CALLED BY */ |
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376 /* */ |
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377 /* Application */ |
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378 /* TMSE_Reset_Timer Error checking shell */ |
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379 /* */ |
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380 /* CALLS */ |
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381 /* */ |
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382 /* [HIC_Make_History_Entry] Make entry in history log */ |
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383 /* [TCT_Check_Stack] Stack checking function */ |
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384 /* TCT_System_Protect Protect active list */ |
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385 /* TCT_Unprotect Release protection */ |
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386 /* TMS_Control_Timer Enable/disable timer */ |
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387 /* */ |
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388 /* INPUTS */ |
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389 /* */ |
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390 /* timer_ptr Timer control block pointer */ |
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391 /* expiration_routine Timer expiration routine */ |
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392 /* initial_time Initial expiration time */ |
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393 /* reschedule_time Reschedule expiration time */ |
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394 /* enable Automatic enable option */ |
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395 /* */ |
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396 /* OUTPUTS */ |
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397 /* */ |
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398 /* NU_NOT_DISABLED Timer not disabled first */ |
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399 /* NU_SUCCESS Successful completion */ |
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400 /* */ |
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401 /* HISTORY */ |
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402 /* */ |
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403 /* DATE REMARKS */ |
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404 /* */ |
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405 /* 03-01-1993 Created initial version 1.0 */ |
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406 /* 04-19-1993 Verified version 1.0 */ |
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407 /* 03-01-1994 Modified protection logic to use */ |
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408 /* system protection, changed */ |
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409 /* function prototype, resulting */ |
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410 /* in version 1.1 */ |
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411 /* */ |
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412 /* 03-18-1994 Verified version 1.1 */ |
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413 /* */ |
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414 /*************************************************************************/ |
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415 STATUS TMS_Reset_Timer(NU_TIMER *timer_ptr, |
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416 VOID (*expiration_routine)(UNSIGNED), |
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417 UNSIGNED initial_time, UNSIGNED reschedule_time, OPTION enable) |
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418 { |
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419 |
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420 R1 TM_APP_TCB *timer; /* Timer control block ptr */ |
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421 STATUS status; /* Completion status */ |
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422 NU_SUPERV_USER_VARIABLES |
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423 |
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424 /* Switch to supervisor mode */ |
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425 NU_SUPERVISOR_MODE(); |
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426 |
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427 /* Move input timer pointer into internal pointer. */ |
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428 timer = (TM_APP_TCB *) timer_ptr; |
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429 |
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430 |
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431 #ifdef NU_ENABLE_STACK_CHECK |
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432 |
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433 /* Call stack checking function to check for an overflow condition. */ |
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434 TCT_Check_Stack(); |
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435 |
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436 #endif |
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437 |
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438 #ifdef NU_ENABLE_HISTORY |
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439 |
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440 /* Make an entry that corresponds to this function in the system history |
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441 log. */ |
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442 HIC_Make_History_Entry(NU_RESET_TIMER_ID, (UNSIGNED) timer, |
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443 (UNSIGNED) expiration_routine, (UNSIGNED) initial_time); |
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444 |
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445 #endif |
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446 |
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447 /* Protect against access to the active timer list. */ |
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448 TCT_System_Protect(); |
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449 |
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450 /* Determine if this timer is active. An active timer cannot be |
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451 reset. */ |
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452 if (timer -> tm_enabled) |
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453 { |
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454 |
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455 /* Indicate that the timer is active by returning the proper status. */ |
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456 status = NU_NOT_DISABLED; |
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457 |
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458 #ifdef INCLUDE_PROVIEW |
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459 _RTProf_DumpTimer(RT_PROF_RESET_TIMER,timer,RT_PROF_FAIL); |
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460 #endif /* INCLUDE_PROVIEW */ |
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461 |
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462 } |
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463 else |
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464 { |
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465 |
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466 /* Load the timer with the appropriate values. */ |
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467 timer -> tm_expiration_routine = expiration_routine; |
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468 timer -> tm_expirations = 0; |
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469 timer -> tm_initial_time = initial_time; |
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470 timer -> tm_reschedule_time = reschedule_time; |
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471 |
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472 /* Indicate successful completion status. */ |
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473 status = NU_SUCCESS; |
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474 #ifdef INCLUDE_PROVIEW |
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475 _RTProf_DumpTimer(RT_PROF_RESET_TIMER,timer,RT_PROF_OK); |
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476 #endif /* INCLUDE_PROVIEW */ |
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477 |
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478 } |
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479 |
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480 /* Release protection. */ |
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481 TCT_Unprotect(); |
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482 |
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483 /* Determine if the timer needs to be enabled. */ |
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484 if ((status == NU_SUCCESS) && (enable == NU_ENABLE_TIMER)) |
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485 |
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486 /* Activate the timer. */ |
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487 TMS_Control_Timer(timer_ptr, NU_ENABLE_TIMER); |
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488 |
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489 /* Return to user mode */ |
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490 NU_USER_MODE(); |
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491 |
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492 /* Return completion status. */ |
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493 return(status); |
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494 } |
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495 |
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496 |
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497 /*************************************************************************/ |
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498 /* */ |
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499 /* FUNCTION */ |
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500 /* */ |
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501 /* TMS_Control_Timer */ |
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502 /* */ |
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503 /* DESCRIPTION */ |
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504 /* */ |
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505 /* This function either enables or disables the specified timer. */ |
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506 /* If the timer is already in the desired state, simply leave it */ |
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507 /* alone. */ |
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508 /* */ |
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509 /* CALLED BY */ |
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510 /* */ |
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511 /* Application */ |
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512 /* TMSE_Control_Timer Error checking shell */ |
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513 /* */ |
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514 /* CALLS */ |
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515 /* */ |
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516 /* [HIC_Make_History_Entry] Make entry in history log */ |
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517 /* [TCT_Check_Stack] Stack checking function */ |
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518 /* TCT_System_Protect Protect the active list */ |
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519 /* TCT_Unprotect Release protection */ |
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520 /* TMC_Start_Timer Start a timer */ |
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521 /* TMC_Stop_Timer Stop a timer */ |
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522 /* */ |
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523 /* INPUTS */ |
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524 /* */ |
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525 /* app_timer Timer control block pointer */ |
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526 /* enable Disable/enable timer option */ |
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527 /* */ |
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528 /* OUTPUTS */ |
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529 /* */ |
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530 /* NU_SUCCESS If service is successful */ |
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531 /* */ |
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532 /* HISTORY */ |
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533 /* */ |
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534 /* DATE REMARKS */ |
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535 /* */ |
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536 /* 03-01-1993 Created initial version 1.0 */ |
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537 /* 04-19-1993 Verified version 1.0 */ |
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538 /* 03-01-1994 Modified protection logic to use */ |
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539 /* system protection, changed */ |
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540 /* function prototype, resulting */ |
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541 /* in version 1.1 */ |
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542 /* */ |
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543 /* 03-18-1994 Verified version 1.1 */ |
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544 /* */ |
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545 /*************************************************************************/ |
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546 STATUS TMS_Control_Timer(NU_TIMER *app_timer, OPTION enable) |
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547 { |
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548 |
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549 R1 TM_APP_TCB *timer; /* Timer control block ptr */ |
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550 TM_TCB *timer_ptr; /* Actual timer pointer */ |
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551 UNSIGNED time; /* Variable to hold request */ |
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552 NU_SUPERV_USER_VARIABLES |
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553 |
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554 /* Switch to supervisor mode */ |
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555 NU_SUPERVISOR_MODE(); |
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556 |
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557 /* Move input timer pointer into internal pointer. */ |
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558 timer = (TM_APP_TCB *) app_timer; |
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559 |
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560 |
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561 #ifdef NU_ENABLE_STACK_CHECK |
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562 |
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563 /* Call stack checking function to check for an overflow condition. */ |
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564 TCT_Check_Stack(); |
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565 |
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566 #endif |
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567 |
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568 #ifdef NU_ENABLE_HISTORY |
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569 |
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570 /* Make an entry that corresponds to this function in the system history |
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571 log. */ |
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572 HIC_Make_History_Entry(NU_CONTROL_TIMER_ID, (UNSIGNED) timer, |
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573 (UNSIGNED) enable, (UNSIGNED) 0); |
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574 |
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575 #endif |
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576 |
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577 /* Protect against simultaneous access to the active timer list. */ |
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578 TCT_System_Protect(); |
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579 |
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580 /* Setup pointer to actual timer part of the control block. */ |
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581 timer_ptr = &(timer -> tm_actual_timer); |
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582 |
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583 /* Determine what type of request is present. */ |
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584 if ((enable == NU_ENABLE_TIMER) && (!timer -> tm_enabled)) |
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585 { |
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586 |
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587 /* Enable timer request is present and timer is currently disabled. */ |
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588 |
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589 /* Determine how to setup the remaining field in the actual timer. */ |
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590 if (timer -> tm_expirations) |
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591 |
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592 /* Use reschedule time since this timer has expired previously. */ |
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593 time = timer -> tm_reschedule_time; |
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594 else |
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595 |
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596 /* Use initial time since this timer has never expired. */ |
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597 time = timer -> tm_initial_time; |
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598 |
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599 /* Mark the application timer as enabled. */ |
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600 timer -> tm_enabled = NU_TRUE; |
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601 |
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602 /* Call the start timer routine to actually start the timer. */ |
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603 TMC_Start_Timer(&(timer -> tm_actual_timer), time); |
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604 } |
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605 else if ((enable == NU_DISABLE_TIMER) && (timer -> tm_enabled)) |
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606 { |
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607 |
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608 /* Disable timer request is present and timer is currently enabled. */ |
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609 TMC_Stop_Timer(timer_ptr); |
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610 |
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611 /* Mark the timer as disabled. */ |
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612 timer -> tm_enabled = NU_FALSE; |
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613 } |
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614 |
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615 #ifdef INCLUDE_PROVIEW |
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616 _RTProf_DumpTimer(RT_PROF_CONTROL_TIMER,timer,RT_PROF_OK); |
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617 #endif /* INCLUDE_PROVIEW */ |
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618 /* Release protection. */ |
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619 TCT_Unprotect(); |
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620 |
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621 /* Return to user mode */ |
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622 NU_USER_MODE(); |
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623 |
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624 /* Return the completion status. */ |
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625 return(NU_SUCCESS); |
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626 } |
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|
627 |
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Mychaela Falconia <falcon@freecalypso.org>
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changeset
|
628 |
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diff
changeset
|
629 |
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|
630 |