FreeCalypso > hg > ffs-editor
annotate src/nucleus/tmc.c @ 27:cb3f6fe694e1 default tip
README: document SE K2x0 addition
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Thu, 21 Dec 2023 21:44:43 +0000 |
parents | 92470e5d0b9e |
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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 /* tmc.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 the core routines for the timer management */ |
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25 /* 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 /* TMC_Init_Task_Timer Initialize task timer */ |
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34 /* TMC_Start_Task_Timer Start task timer */ |
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35 /* TMC_Stop_Task_Timer Stop task timer */ |
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36 /* TMC_Start_Timer Actually start a timer */ |
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37 /* TMC_Stop_Timer Actually stop a timer */ |
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38 /* TMC_Timer_HISR Timer High-Level Interrupt */ |
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39 /* Service Routine (HISR) */ |
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40 /* TMC_Timer_Expiration Timer expiration function */ |
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41 /* */ |
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42 /* DEPENDENCIES */ |
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43 /* */ |
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44 /* cs_extr.h Common Service functions */ |
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45 /* tc_extr.h Thread Control functions */ |
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46 /* tm_extr.h Timer functions */ |
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47 /* hi_extr.h History functions */ |
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48 /* */ |
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49 /* HISTORY */ |
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50 /* */ |
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51 /* DATE REMARKS */ |
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52 /* */ |
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53 /* 03-01-1993 Created initial version 1.0 */ |
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54 /* 04-19-1993 Verified version 1.0 */ |
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55 /* 08-09-1993 Corrected the following problems */ |
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56 /* - Moved sleep, timeout, and */ |
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57 /* application timer expiration */ |
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58 /* processing to system timer */ |
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59 /* HISR. Removed timer task */ |
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60 /* logic */ |
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61 /* - Corrected a disable timer */ |
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62 /* problem that caused a delay */ |
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63 /* in subsequent timer */ |
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64 /* expiration */ |
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65 /* - Corrected the application */ |
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66 /* timer ID returned by the */ |
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67 /* timer information service */ |
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68 /* Corrected the loop to return */ |
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69 /* all application timer */ |
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70 /* pointers */ |
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71 /* - Corrected timer expiration */ |
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72 /* while accessing from an LISR */ |
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73 /* - Using the task time slice ptr */ |
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74 /* instead of the time slice */ |
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75 /* state flag */ |
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76 /* Modifications resulted in */ |
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77 /* version 1.0a */ |
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78 /* 08-09-1993 Verified version 1.0a */ |
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79 /* 03-01-1994 Moved non-core functions into */ |
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80 /* supplemental files, modified */ |
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81 /* protection logic to use system */ |
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82 /* protect mechanism, removed the */ |
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83 /* disable timer logic in start */ |
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84 /* timer, insured valid time- */ |
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85 /* slice task pointer, added */ |
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86 /* register logic, resulting */ |
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87 /* in version 1.1 */ |
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88 /* */ |
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89 /* 3-18-1994 Verified version 1.1 */ |
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90 /* 08-25-95 Made the following changes */ |
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91 /* */ |
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92 /* +INT type = 0; Type of expiration */ |
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93 /* +VOID *pointer = NU_NULL; Pointer type */ |
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94 /* +UNSIGNED id = 0; Application timer ID */ |
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95 /* -INT type; Type of expiration */ |
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96 /* -VOID *pointer; Pointer type */ |
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97 /* -UNSIGNED id; Application timer ID */ |
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98 /* Expiration routine ptr */ |
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99 /* +VOID (*expiration_routine)(UNSIGNED)= NU_NULL; */ |
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100 /* -VOID (*expiration_routine)(UNSIGNED); */ |
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101 /* 04-17-1996 updated to version 1.2 */ |
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102 /* 03-24-1998 Released version 1.3. */ |
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103 /* 03-26-1999 Released 1.11m (new release */ |
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104 /* numbering scheme) */ |
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105 /* 04-17-2002 Released version 1.13m */ |
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106 /* 11-07-2002 Released version 1.14 */ |
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107 /*************************************************************************/ |
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108 #define NU_SOURCE_FILE |
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109 |
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110 |
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111 #include "cs_extr.h" /* Common service functions */ |
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112 #include "tc_extr.h" /* Thread control functions */ |
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113 #include "tm_extr.h" /* Timer functions */ |
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114 #include "hi_extr.h" /* History functions */ |
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115 |
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116 |
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117 /* Define external inner-component global data references. */ |
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118 |
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119 extern TM_TCB *TMD_Active_Timers_List; |
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120 extern INT TMD_Active_List_Busy; |
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121 extern UNSIGNED TMD_System_Clock; |
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122 extern UNSIGNED TMD_Timer_Start; |
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123 extern UNSIGNED TMD_Timer; |
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124 extern INT TMD_Timer_State; |
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125 extern UNSIGNED TMD_Time_Slice; |
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126 extern TC_TCB *TMD_Time_Slice_Task; |
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127 extern INT TMD_Time_Slice_State; |
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128 |
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129 |
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130 /* Define internal function prototypes. */ |
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131 |
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132 VOID TMC_Start_Timer(TM_TCB *timer, UNSIGNED time); |
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133 VOID TMC_Stop_Timer(TM_TCB *timer); |
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134 VOID TMC_Timer_Expiration(VOID); |
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135 UNSIGNED TMT_Read_Timer(VOID); |
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136 VOID TMT_Enable_Timer(UNSIGNED time); |
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137 VOID TMT_Disable_Timer(VOID); |
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138 |
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139 |
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140 |
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141 /*************************************************************************/ |
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142 /* */ |
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143 /* FUNCTION */ |
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144 /* */ |
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145 /* TMC_Init_Task_Timer */ |
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146 /* */ |
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147 /* DESCRIPTION */ |
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148 /* */ |
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149 /* This function is responsible for initializing the supplied task */ |
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150 /* timer. This routine must be called from Supervisor mode in a */ |
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151 /* Supervisor/User mode switching kernel. */ |
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152 /* */ |
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153 /* CALLED BY */ |
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154 /* */ |
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155 /* TCC_Create_Task Task create function */ |
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156 /* */ |
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157 /* CALLS */ |
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158 /* */ |
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159 /* None */ |
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160 /* */ |
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161 /* INPUTS */ |
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162 /* */ |
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163 /* timer Timer control block pointer */ |
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164 /* information Information pointer - always */ |
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165 /* the task pointer */ |
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166 /* */ |
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167 /* OUTPUTS */ |
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168 /* */ |
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169 /* None */ |
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170 /* */ |
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171 /* HISTORY */ |
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172 /* */ |
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173 /* DATE REMARKS */ |
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174 /* */ |
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175 /* 03-01-1993 Created initial version 1.0 */ |
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176 /* 04-19-1993 Verified version 1.0 */ |
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177 /* */ |
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178 /*************************************************************************/ |
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179 VOID TMC_Init_Task_Timer(TM_TCB *timer, VOID *information) |
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180 { |
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181 |
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182 /* Initialize the task timer. */ |
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183 timer -> tm_timer_type = TM_TASK_TIMER; |
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184 timer -> tm_information = information; |
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185 timer -> tm_next_timer = NU_NULL; |
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186 timer -> tm_previous_timer = NU_NULL; |
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187 } |
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188 |
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189 |
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190 /*************************************************************************/ |
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191 /* */ |
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192 /* FUNCTION */ |
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193 /* */ |
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194 /* TMC_Start_Task_Timer */ |
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195 /* */ |
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196 /* DESCRIPTION */ |
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197 /* */ |
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198 /* This function is responsible for starting a task timer. Note */ |
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199 /* that there are some special protection considerations since */ |
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200 /* this function is called from the task control component. This */ |
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201 /* routine must be called from Supervisor mode in a Supervisor/User */ |
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202 /* mode switching kernel. */ |
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203 /* */ |
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204 /* CALLED BY */ |
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205 /* */ |
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206 /* TCC_Suspend_Task Suspend task with a timeout */ |
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207 /* */ |
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208 /* CALLS */ |
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209 /* */ |
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210 /* TMC_Start_Timer Start the timer */ |
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211 /* */ |
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212 /* INPUTS */ |
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213 /* */ |
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214 /* timer Timer control block pointer */ |
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215 /* time Time associated with timer */ |
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216 /* */ |
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217 /* OUTPUTS */ |
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218 /* */ |
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219 /* None */ |
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220 /* */ |
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221 /* HISTORY */ |
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222 /* */ |
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223 /* DATE REMARKS */ |
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224 /* */ |
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225 /* 03-01-1993 Created initial version 1.0 */ |
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226 /* 04-19-1993 Verified version 1.0 */ |
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227 /* 03-01-1994 Removed protection logic since */ |
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228 /* system protect is in force at */ |
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229 /* the time this function is */ |
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230 /* called, resulting in */ |
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231 /* version 1.1 */ |
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232 /* */ |
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233 /* 03-18-1994 Verified version 1.1 */ |
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234 /* */ |
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235 /*************************************************************************/ |
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236 VOID TMC_Start_Task_Timer(TM_TCB *timer, UNSIGNED time) |
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237 { |
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238 |
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239 /* Start the specified timer. */ |
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240 TMC_Start_Timer(timer, time); |
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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 /* */ |
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246 /* FUNCTION */ |
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247 /* */ |
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248 /* TMC_Stop_Task_Timer */ |
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249 /* */ |
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250 /* DESCRIPTION */ |
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251 /* */ |
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252 /* This function is responsible for stopping a task timer. Note */ |
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253 /* that there are some special protection considerations since */ |
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254 /* this function is called from the task control component. This */ |
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255 /* routine must be called from Supervisor mode in a Supervisor/User */ |
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256 /* mode switching kernel. */ |
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257 /* */ |
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258 /* CALLED BY */ |
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259 /* */ |
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260 /* TCC_Resume_Task Resume task function */ |
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261 /* TCC_Terminate_Task Terminate task function */ |
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262 /* */ |
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263 /* CALLS */ |
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264 /* */ |
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265 /* TMC_Stop_Timer Stop the timer */ |
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266 /* */ |
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267 /* INPUTS */ |
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268 /* */ |
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269 /* timer Timer control block pointer */ |
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270 /* */ |
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271 /* OUTPUTS */ |
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272 /* */ |
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273 /* None */ |
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274 /* */ |
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275 /* HISTORY */ |
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276 /* */ |
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277 /* DATE REMARKS */ |
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278 /* */ |
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279 /* 03-01-1993 Created initial version 1.0 */ |
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280 /* 04-19-1993 Verified version 1.0 */ |
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281 /* 03-01-1994 Removed protection logic since */ |
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282 /* system protect is in force at */ |
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283 /* the time this function is */ |
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284 /* called, resulting in */ |
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285 /* version 1.1 */ |
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286 /* */ |
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287 /* 03-18-1994 Verified version 1.1 */ |
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288 /* */ |
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289 /*************************************************************************/ |
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290 VOID TMC_Stop_Task_Timer(TM_TCB *timer) |
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291 { |
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292 |
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293 /* Stop the specified timer - if it is still active. */ |
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294 if (timer -> tm_next_timer) |
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295 |
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296 TMC_Stop_Timer(timer); |
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297 } |
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298 |
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299 |
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300 /*************************************************************************/ |
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301 /* */ |
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302 /* FUNCTION */ |
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303 /* */ |
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304 /* TMC_Start_Timer */ |
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305 /* */ |
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306 /* DESCRIPTION */ |
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307 /* */ |
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308 /* This function is responsible for starting both application and */ |
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309 /* task timers. This routine must be called from Supervisor mode */ |
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310 /* in a Supervisor/User mode switching kernel. */ |
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311 /* */ |
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312 /* CALLED BY */ |
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313 /* */ |
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314 /* TMC_Control_Timer Control application timer */ |
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315 /* TMC_Start_Task_Timer Start task timer */ |
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316 /* */ |
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317 /* CALLS */ |
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318 /* */ |
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319 /* TMT_Read_Timer Read current timer counter */ |
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320 /* TMT_Adjust_Timer Adjust the count-down timer */ |
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321 /* TMT_Enable_Timer Enable count-down timer */ |
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322 /* */ |
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323 /* INPUTS */ |
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324 /* */ |
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325 /* timer Timer control block pointer */ |
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326 /* time Time associated with timer */ |
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327 /* */ |
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328 /* OUTPUTS */ |
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329 /* */ |
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330 /* None */ |
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331 /* */ |
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332 /* HISTORY */ |
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333 /* */ |
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334 /* DATE REMARKS */ |
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335 /* */ |
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336 /* 03-01-1993 Created initial version 1.0 */ |
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337 /* 04-19-1993 Verified version 1.0 */ |
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338 /* 08-09-1993 Added logic to check for timer */ |
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339 /* expiration before or during */ |
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340 /* another LISR's access, */ |
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341 /* resulting in version 1.0a */ |
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342 /* 08-09-1993 Verified version 1.0a */ |
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343 /* 03-01-1994 Removed disable timer logic to */ |
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344 /* insure there is no timer loss, */ |
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345 /* added register logic, */ |
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346 /* resulting in version 1.1 */ |
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347 /* */ |
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348 /* 03-18-1994 Verified version 1.1 */ |
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349 /* */ |
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350 /*************************************************************************/ |
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351 VOID TMC_Start_Timer(TM_TCB *timer, UNSIGNED time) |
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352 { |
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353 |
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354 R1 TM_TCB *list_ptr; /* Working pointer timer ptr */ |
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355 UNSIGNED elapsed; /* Elapsed time variable */ |
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356 INT done; /* Search finished flag */ |
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357 |
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358 |
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359 /* Note that protection over the active timer list is in force when this |
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360 function is called. */ |
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|
361 |
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362 /* Determine if the active list is empty. */ |
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363 if (TMD_Active_Timers_List == NU_NULL) |
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364 { |
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|
365 |
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366 /* Place the timer on an empty list. */ |
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367 timer -> tm_next_timer = timer; |
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368 timer -> tm_previous_timer = timer; |
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|
369 |
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370 /* Link the timer to the list head. */ |
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371 TMD_Active_Timers_List = timer; |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
372 |
92470e5d0b9e
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
373 /* Setup the actual count-down timer structures. */ |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
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|
374 TMD_Timer_Start = time; |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
375 timer -> tm_remaining_time = time; |
92470e5d0b9e
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
376 |
92470e5d0b9e
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
377 |
92470e5d0b9e
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
378 /* BUG FIX FOR NU_RESET WITH INITIAL TIME OF 0 */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
379 /* Determine if there is any time remaining on the timer. |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
380 If so, enable the timer. Otherwise, the Timer HISR is |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
381 already pending, so skip starting the timer again. */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
382 |
92470e5d0b9e
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
383 if (time != 0) |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
384 /* Start the actual count-down timer. */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
385 TMT_Enable_Timer(TMD_Timer_Start); |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
386 else |
92470e5d0b9e
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
387 TMD_Timer_State = TM_EXPIRED; |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
388 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
389 } |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
390 else |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
391 { |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
392 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
393 /* Place the new timer into the list. */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
394 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
395 /* Pickup the head of the list. */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
396 list_ptr = TMD_Active_Timers_List; |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
397 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
398 /* Determine if the timer is being added while the timer |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
399 expiration task is running. If so, don't attempt to adjust |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
400 the expiration list. If not, adjust the list. */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
401 if (!TMD_Active_List_Busy) |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
402 { |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
403 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
404 /* Calculate the elapsed amount of time from the last timer |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
405 request. */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
406 elapsed = TMD_Timer_Start - TMT_Read_Timer(); |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
407 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
408 /* Adjust the first entry in the timer list and the timer |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
409 start value accordingly. */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
410 TMD_Timer_Start = TMD_Timer_Start - elapsed; |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
411 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
412 /* Make sure the remaining time is never below zero. */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
413 if (list_ptr -> tm_remaining_time > elapsed) |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
414 { |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
415 list_ptr -> tm_remaining_time = list_ptr -> tm_remaining_time |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
416 - elapsed; |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
417 } |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
418 else |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
419 { |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
420 list_ptr -> tm_remaining_time = 0; |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
421 } |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
422 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
423 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
424 } |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
425 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
426 /* At this point the timer list is accurate again. Find the |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
427 appropriate place on the timer list for the new timer. */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
428 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
429 /* Determine where to place the timer in the list. */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
430 done = NU_FALSE; |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
431 do |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
432 { |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
433 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
434 /* Determine if the timer belongs before the current timer |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
435 pointed to by list_ptr. */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
436 if (time < list_ptr -> tm_remaining_time) |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
437 { |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
438 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
439 /* Update the time of the next timer. */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
440 list_ptr -> tm_remaining_time = |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
441 list_ptr -> tm_remaining_time - time; |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
442 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
443 /* Determine if an insertion at the head of the list is |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
444 present. */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
445 if (list_ptr == TMD_Active_Timers_List) |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
446 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
447 /* Move the list head to the new timer. */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
448 TMD_Active_Timers_List = timer; |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
449 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
450 /* Set the done flag to end the search. */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
451 done = NU_TRUE; |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
452 } |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
453 else |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
454 { |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
455 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
456 /* Decrement the time by the remaining value of each timer in |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
457 the list. In this way, the list never has to be searched |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
458 again. */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
459 time = time - list_ptr -> tm_remaining_time; |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
460 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
461 /* Move the list pointer to the next timer in the list. */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
462 list_ptr = list_ptr -> tm_next_timer; |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
463 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
464 /* Check to see if the list has wrapped around. */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
465 if (list_ptr == TMD_Active_Timers_List) |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
466 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
467 /* Searching is done. */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
468 done = NU_TRUE; |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
469 } |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
470 } while (!done); |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
471 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
472 /* Link the new timer into the list. */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
473 timer -> tm_next_timer = list_ptr; |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
474 timer -> tm_previous_timer = list_ptr -> tm_previous_timer; |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
475 (list_ptr -> tm_previous_timer) -> tm_next_timer = timer; |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
476 list_ptr -> tm_previous_timer = timer; |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
477 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
478 /* Update the remaining time parameter. */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
479 timer -> tm_remaining_time = time; |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
480 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
481 /* Determine if a new timer should be started. */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
482 if (!TMD_Active_List_Busy) |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
483 { |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
484 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
485 /* Calculate the new timer expiration. */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
486 time = TMD_Active_Timers_List -> tm_remaining_time; |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
487 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
488 /* Determine if the new expiration is less than the current |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
489 time, if any. If not, let already started time expire. */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
490 if (time <= TMD_Timer_Start) |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
491 { |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
492 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
493 /* Setup for a smaller timer expiration. */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
494 TMD_Timer_Start = time; |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
495 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
496 /* Determine if there is any time remaining on the timer in |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
497 the front of the list. If so, adjust the timer. |
92470e5d0b9e
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
498 Otherwise, the Timer HISR is already pending, so skip |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
499 starting the timer again. */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
500 if (TMD_Timer_Start) |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
501 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
502 /* Still some remaining time, adjust the timer. */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
503 TMT_Adjust_Timer(TMD_Timer_Start); |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
504 else |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
505 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
506 /* Indicate that the task and application timer has |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
507 expired. */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
508 TMD_Timer_State = TM_EXPIRED; |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
509 } |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
510 } |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
511 } |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
512 } |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
513 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
514 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
515 /*************************************************************************/ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
516 /* */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
517 /* FUNCTION */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
518 /* */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
519 /* TMC_Stop_Timer */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
520 /* */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
521 /* DESCRIPTION */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
522 /* */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
523 /* This function is responsible for stopping both application and */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
524 /* task timers. This routine must be called from Supervisor mode */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
525 /* in a Supervisor/User mode switching kernel. */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
526 /* */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
527 /* CALLED BY */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
528 /* */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
529 /* TMC_Control_Timer Control application timer */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
530 /* TMC_Stop_Task_Timer Start task timer */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
531 /* */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
532 /* CALLS */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
533 /* */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
534 /* TMT_Disable_Timer Disable the count-down timer */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
535 /* */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
536 /* INPUTS */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
537 /* */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
538 /* timer Timer control block pointer */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
539 /* */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
540 /* OUTPUTS */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
541 /* */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
542 /* None */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
543 /* */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
544 /* HISTORY */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
545 /* */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
546 /* DATE REMARKS */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
547 /* */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
548 /* 03-01-1993 Created initial version 1.0 */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
549 /* 04-19-1993 Verified version 1.0 */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
550 /* 08-09-1993 Corrected a problem associated */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
551 /* with stopping the last timer */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
552 /* on the active list, resulting */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
553 /* in version 1.0a */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
554 /* 08-09-1993 Verified version 1.0a */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
555 /* */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
556 /*************************************************************************/ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
557 VOID TMC_Stop_Timer(TM_TCB *timer) |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
558 { |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
559 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
560 /* Note that the active timer list is already under protection. */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
561 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
562 /* If the next neighbor of the timer that needs to be stopped is not the |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
563 head of the timer list, add the remaining time field to the remaining |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
564 time of the next neighbor. */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
565 if ((timer -> tm_next_timer) != TMD_Active_Timers_List) |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
566 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
567 /* Adjust the next neighbor's remaining time field. */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
568 (timer -> tm_next_timer) -> tm_remaining_time = |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
569 (timer -> tm_next_timer) -> tm_remaining_time + |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
570 timer -> tm_remaining_time; |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
571 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
572 /* Unlink the timer from the active list. */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
573 if (timer -> tm_next_timer == timer) |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
574 { |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
575 /* Only timer on the list. */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
576 TMD_Active_Timers_List = NU_NULL; |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
577 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
578 /* Disable the timer. */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
579 TMT_Disable_Timer(); |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
580 } |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
581 else |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
582 { |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
583 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
584 /* More than one timer on the list. */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
585 (timer -> tm_previous_timer) -> tm_next_timer = timer -> tm_next_timer; |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
586 (timer -> tm_next_timer) -> tm_previous_timer = |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
587 timer -> tm_previous_timer; |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
588 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
589 /* Determine if the timer is at the head of the list. */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
590 if (TMD_Active_Timers_List == timer) |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
591 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
592 /* Yes, move the head pointer to the next timer. */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
593 TMD_Active_Timers_List = timer -> tm_next_timer; |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
594 } |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
595 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
596 /* Clear the timer's next and previous pointers. */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
597 timer -> tm_next_timer = NU_NULL; |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
598 timer -> tm_previous_timer = NU_NULL; |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
599 } |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
600 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
601 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
602 /*************************************************************************/ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
603 /* */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
604 /* FUNCTION */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
605 /* */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
606 /* TMC_Timer_HISR */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
607 /* */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
608 /* DESCRIPTION */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
609 /* */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
610 /* This function is responsible for High-Level interrupt processing */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
611 /* of a timer expiration. If an application timer has expired, */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
612 /* the timer expiration function is called. Otherwise, if the */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
613 /* time-slice timer has expired, time-slice processing is invoked. */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
614 /* */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
615 /* CALLED BY */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
616 /* */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
617 /* None */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
618 /* */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
619 /* CALLS */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
620 /* */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
621 /* TCC_Time_Slice Task time-slice processing */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
622 /* TMC_Timer_Expiration Timer expiration processing */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
623 /* TMT_Retrieve_TS_Task Retrieve time-sliced task ptr*/ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
624 /* */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
625 /* INPUTS */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
626 /* */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
627 /* None */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
628 /* */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
629 /* OUTPUTS */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
630 /* */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
631 /* None */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
632 /* */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
633 /* HISTORY */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
634 /* */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
635 /* DATE REMARKS */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
636 /* */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
637 /* 03-01-1993 Created initial version 1.0 */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
638 /* 04-19-1993 Verified version 1.0 */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
639 /* 08-09-1993 Added sleep, timeout, and */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
640 /* application timer expiration */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
641 /* processing to the timer HISR, */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
642 /* using time slice task pointer */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
643 /* instead of state flag, */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
644 /* resulting in version 1.0a */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
645 /* 08-09-1993 Verified version 1.0a */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
646 /* 03-01-1994 Modified function interface to */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
647 /* TCC_Time_Slice, added logic to */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
648 /* insure valid pointer for some */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
649 /* ports, resulting in version 1.1 */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
650 /* */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
651 /* 03-18-1994 Verified version 1.1 */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
652 /* */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
653 /*************************************************************************/ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
654 VOID TMC_Timer_HISR(VOID) |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
655 { |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
656 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
657 NU_TASK *task; /* Time slice task. */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
658 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
659 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
660 /* Determine if the task timer has expired. */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
661 if (TMD_Timer_State == TM_EXPIRED) |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
662 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
663 /* Resume the timer task. */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
664 TMC_Timer_Expiration(); |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
665 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
666 /* Determine if the time-slice timer has expired. */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
667 task = TMT_Retrieve_TS_Task(); |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
668 if (task) |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
669 { |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
670 NU_SUPERV_USER_VARIABLES |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
671 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
672 /* Switch to supervisor mode |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
673 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
674 Note that this HISR function can make the switch to supervisor mode |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
675 this is only possible because the code lives within the kernel */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
676 NU_SUPERVISOR_MODE(); |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
677 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
678 /* Reset the time-slice state. */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
679 TMD_Time_Slice_State = TM_NOT_ACTIVE; |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
680 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
681 /* Process the time-slice. */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
682 TCC_Time_Slice(task); |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
683 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
684 /* Clear the time slice task pointer. */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
685 TMD_Time_Slice_Task = NU_NULL; |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
686 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
687 /* Return to user mode */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
688 NU_USER_MODE(); |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
689 } |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
690 } |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
691 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
692 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
693 /*************************************************************************/ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
694 /* */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
695 /* FUNCTION */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
696 /* */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
697 /* TMC_Timer_Expiration */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
698 /* */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
699 /* DESCRIPTION */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
700 /* */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
701 /* This function is responsible for processing all task timer */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
702 /* expirations. This includes application timers and basic task */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
703 /* timers that are used for task sleeping and timeouts. */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
704 /* */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
705 /* CALLED BY */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
706 /* */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
707 /* None */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
708 /* */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
709 /* CALLS */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
710 /* */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
711 /* expiration_function Application specified timer */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
712 /* expiration function */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
713 /* TCC_Task_Timeout Task timeout function */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
714 /* TCT_System_Protect Protect active timer list */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
715 /* TCT_Unprotect Release protection of list */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
716 /* TMC_Stop_Timer Stop timer */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
717 /* TMC_Start_Timer Start timer */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
718 /* TMT_Disable_Timer Disable timer */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
719 /* TMT_Enable_Timer Enable timer */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
720 /* */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
721 /* INPUTS */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
722 /* */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
723 /* None */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
724 /* */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
725 /* OUTPUTS */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
726 /* */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
727 /* None */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
728 /* */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
729 /* HISTORY */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
730 /* */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
731 /* DATE REMARKS */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
732 /* */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
733 /* 03-01-1993 Created initial version 1.0 */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
734 /* 04-19-1993 Verified version 1.0 */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
735 /* 08-09-1993 Changed from TMC_Timer_Task to */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
736 /* TMC_Timer_Expiration, */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
737 /* resulting in version 1.0a */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
738 /* 08-09-1993 Verified version 1.0a */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
739 /* 03-01-1994 Modified function interface to */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
740 /* TCC_Task_Timeout, changed */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
741 /* protection logic to use system */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
742 /* protetion, added register */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
743 /* logic, resulting in version 1.1 */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
744 /* */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
745 /* 03-18-1994 Verified version 1.1 */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
746 /* 08-25-95 Made the following changes */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
747 /* */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
748 /* +INT type = 0; Type of expiration */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
749 /* +VOID *pointer = NU_NULL; Pointer type */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
750 /* +UNSIGNED id = 0; Application timer ID */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
751 /* -INT type; Type of expiration */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
752 /* -VOID *pointer; Pointer type */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
753 /* -UNSIGNED id; Application timer ID */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
754 /* Expiration routine ptr */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
755 /* +VOID (*expiration_routine)(UNSIGNED)= NU_NULL; */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
756 /* -VOID (*expiration_routine)(UNSIGNED); */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
757 /* */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
758 /*************************************************************************/ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
759 VOID TMC_Timer_Expiration(VOID) |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
760 { |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
761 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
762 R1 TM_TCB *timer; /* Pointer to timer */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
763 R2 TM_APP_TCB *app_timer; /* Pointer to app timer */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
764 INT done; /* Expiration completion */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
765 INT type = 0; /* Type of expiration */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
766 VOID *pointer = NU_NULL; /* Pointer type */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
767 UNSIGNED id = 0; /* Application timer ID */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
768 /* Expiration routine ptr */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
769 VOID (*expiration_routine)(UNSIGNED)= NU_NULL; |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
770 NU_SUPERV_USER_VARIABLES |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
771 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
772 /* Switch to supervisor mode */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
773 NU_SUPERVISOR_MODE(); |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
774 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
775 /* Use system protect to protect the active timer list. */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
776 TCT_System_Protect(); |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
777 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
778 /* Reset the timer state flag. */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
779 TMT_Disable_Timer(); |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
780 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
781 /* Set the busy flag to indicate that the list is being processed. */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
782 TMD_Active_List_Busy = NU_TRUE; |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
783 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
784 /* Update the head of the list with the timer expiration |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
785 value. */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
786 timer = TMD_Active_Timers_List; |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
787 if (timer) |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
788 { |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
789 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
790 /* Adjust the active timer's remaining time value. Note that |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
791 TMD_Timer_Start is never greater than the value in the first |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
792 timer location. */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
793 if (timer -> tm_remaining_time > TMD_Timer_Start) |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
794 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
795 /* Timer has not expired. Simply subtract the last timer |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
796 value. */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
797 timer -> tm_remaining_time = timer -> tm_remaining_time - |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
798 TMD_Timer_Start; |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
799 else |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
800 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
801 /* Clear the remaining time field of the timer. */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
802 timer -> tm_remaining_time = 0; |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
803 } |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
804 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
805 /* Release protection, but keep the busy flag set to prevent |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
806 activating new timers. */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
807 TCT_Unprotect(); |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
808 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
809 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
810 /* Find expired timers. Note that the expired timers have values of |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
811 0 in the remaining time field. */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
812 done = NU_FALSE; |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
813 do |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
814 { |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
815 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
816 /* Protect against list access. */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
817 TCT_System_Protect(); |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
818 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
819 /* Pickup the head of the active list. */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
820 timer = TMD_Active_Timers_List; |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
821 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
822 /* Determine if the timer now at the head of the list has |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
823 expired. Processing continues until the list is empty or |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
824 until a non-expired timer is at the front of the list. */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
825 if ((timer) && (timer -> tm_remaining_time == 0)) |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
826 { |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
827 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
828 /* Timer has expired. Determine which type of timer has |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
829 expired. */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
830 if (timer -> tm_timer_type == TM_APPL_TIMER) |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
831 { |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
832 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
833 /* Application timer has expired. */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
834 type = TM_APPL_TIMER; |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
835 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
836 /* Pickup the pointer to the application timer control |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
837 block. */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
838 app_timer = (TM_APP_TCB *) timer -> tm_information; |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
839 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
840 /* Increment the number of expirations. */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
841 app_timer -> tm_expirations++; |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
842 #ifdef INCLUDE_PROVIEW |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
843 _RTProf_DumpTimer(RT_PROF_APP_TIMER_EXPIRED,app_timer,RT_PROF_OK); |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
844 #endif |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
845 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
846 /* Move the expiration information into local variables |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
847 in case they get corrupted before this expiration can |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
848 be processed. Expirations are processed without the |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
849 list protection in force. */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
850 id = app_timer -> tm_expiration_id; |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
851 expiration_routine = app_timer -> tm_expiration_routine; |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
852 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
853 /* Clear the enabled flag and remove the timer from the |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
854 list. */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
855 app_timer -> tm_enabled = NU_FALSE; |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
856 TMC_Stop_Timer(timer); |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
857 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
858 /* Determine if this timer should be started again. */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
859 if (app_timer -> tm_reschedule_time) |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
860 { |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
861 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
862 /* Timer needs to be rescheduled. */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
863 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
864 /* Setup the enable flag to show that the timer is |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
865 enabled. */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
866 app_timer -> tm_enabled = NU_TRUE; |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
867 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
868 /* Call the start timer function to actually enable |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
869 the timer. This also puts it in the proper place |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
870 on the list. */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
871 TMC_Start_Timer(timer,app_timer -> tm_reschedule_time); |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
872 } |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
873 } |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
874 else |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
875 { |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
876 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
877 /* Task timer has expired (sleeps and timeouts). */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
878 type = TM_TASK_TIMER; |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
879 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
880 /* Remove the timer from the list. */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
881 TMC_Stop_Timer(timer); |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
882 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
883 /* Save-off the task control block pointer. */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
884 pointer = timer -> tm_information; |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
885 } |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
886 } |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
887 else |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
888 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
889 /* Processing is now complete- no more expired timers on the |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
890 list. */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
891 done = NU_TRUE; |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
892 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
893 /* Release protection of active list. */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
894 TCT_Unprotect(); |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
895 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
896 /* Determine if a timer expiration needs to be finished. Note |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
897 that the actual expiration processing is done with protection |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
898 disabled. This prevents deadlock situations from arising. */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
899 if (!done) |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
900 { |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
901 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
902 /* Determine which type of timer has expired. */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
903 if (type == TM_APPL_TIMER) |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
904 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
905 /* Call application timer's expiration function. */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
906 (*(expiration_routine)) (id); |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
907 else |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
908 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
909 /* Call the task timeout function in the thread control |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
910 function. */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
911 TCC_Task_Timeout((NU_TASK *) pointer); |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
912 } |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
913 } while (!done); |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
914 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
915 /* Protect the active list again. */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
916 TCT_System_Protect(); |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
917 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
918 /* Clear the busy flag to indicate that list processing is complete. */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
919 TMD_Active_List_Busy = NU_FALSE; |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
920 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
921 /* Determine if a new timer should be enabled. */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
922 if (TMD_Active_Timers_List) |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
923 { |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
924 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
925 /* Yes, a new timer should be activated. */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
926 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
927 /* Pickup the new timer expiration value. */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
928 TMD_Timer_Start = TMD_Active_Timers_List -> tm_remaining_time; |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
929 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
930 /* Start the new timer. */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
931 TMT_Enable_Timer(TMD_Timer_Start); |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
932 } |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
933 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
934 /* Release protection of the active timer list. */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
935 TCT_Unprotect(); |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
936 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
937 /* Return to user mode */ |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
938 NU_USER_MODE(); |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
939 } |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
940 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
941 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
942 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
943 |
92470e5d0b9e
src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
944 |