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annotate src/nucleus/tci.c @ 152:d3668a47b969

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targets/fcdev3b.conf: no more disabling sleep, hw is fixed!
author Mychaela Falconia <falcon@freecalypso.org>
date Thu, 07 Feb 2019 00:11:43 +0000
parents 0f80e1e4dce4
children
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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 /* tci.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 /* TC - Thread Control */
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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 initialization routine for this */
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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 /* TCI_Initialize Thread Control Initialization*/
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34 /* */
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35 /* DEPENDENCIES */
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36 /* */
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37 /* tc_defs.h Thread Control constants */
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38 /* */
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39 /* HISTORY */
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40 /* */
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41 /* DATE REMARKS */
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42 /* */
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43 /* 03-01-1993 Created initial version 1.0 */
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44 /* 04-19-1993 Verified version 1.0 */
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45 /* 08-09-1993 Corrected problem initializing */
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46 /* the LISR association table, */
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47 /* resulting in version 1.0a */
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48 /* 08-09-1993 Verified version 1.0a */
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49 /* 03-01-1994 Changed to initialize the system */
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50 /* protection rather than the */
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51 /* schedule protection, resulting */
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52 /* in version 1.1 */
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53 /* */
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54 /* 03-18-1994 Verified version 1.1 */
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55 /* 04-17-1996 updated to version 1.2 */
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56 /* 03-24-1998 Released version 1.3 */
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57 /* 03-26-1999 Released 1.11m (new release */
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58 /* numbering scheme) */
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59 /* 04-17-2002 Released version 1.13m */
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60 /* 11-07-2002 Released version 1.14 */
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61 /*************************************************************************/
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62 #define NU_SOURCE_FILE
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65 #include "cs_defs.h" /* Common Service constants */
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66 #include "tc_defs.h" /* Thread Control constants */
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67 #include "tc_extr.h" /* Thread Control interfaces */
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68
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69 /* Define external inner-component global data references. */
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71 extern CS_NODE *TCD_Created_Tasks_List;
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72 extern UNSIGNED TCD_Total_Tasks;
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73 extern TC_TCB *TCD_Priority_List[TC_PRIORITIES];
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74 extern UNSIGNED TCD_Priority_Groups;
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75 extern DATA_ELEMENT TCD_Sub_Priority_Groups[TC_MAX_GROUPS];
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76 extern INT TCD_Highest_Priority;
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77 extern TC_TCB *TCD_Execute_Task;
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78 extern VOID *TCD_Current_Thread;
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79 extern UNSIGNED_CHAR TCD_Registered_LISRs[NU_MAX_VECTORS+1];
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80 extern VOID (*TCD_LISR_Pointers[NU_MAX_LISRS+1])(INT vector);
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81 extern INT TCD_Interrupt_Count;
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82 extern INT TCD_Stack_Switched;
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83 extern TC_PROTECT TCD_List_Protect;
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84 extern TC_PROTECT TCD_System_Protect;
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85 extern TC_PROTECT TCD_LISR_Protect;
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86 extern CS_NODE *TCD_Created_HISRs_List;
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87 extern UNSIGNED TCD_Total_HISRs;
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88 extern TC_HCB *TCD_Active_HISR_Heads[TC_HISR_PRIORITIES];
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89 extern TC_HCB *TCD_Active_HISR_Tails[TC_HISR_PRIORITIES];
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90 extern TC_HCB *TCD_Execute_HISR;
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91 extern TC_PROTECT TCD_HISR_Protect;
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92 extern INT TCD_Interrupt_Level;
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96 /*************************************************************************/
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97 /* */
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98 /* FUNCTION */
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99 /* */
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100 /* TCI_Initialize */
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101 /* */
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102 /* DESCRIPTION */
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103 /* */
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104 /* This function initializes the data structures that control the */
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105 /* operation of the TC component. The system is initialized as */
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106 /* idle. This routine must be executed from Supervisor mode in */
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107 /* Supervisor/User mode switching kernels. */
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108 /* */
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109 /* CALLED BY */
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110 /* */
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111 /* INC_Initialize System initialization */
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112 /* */
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113 /* CALLS */
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114 /* */
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115 /* None */
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116 /* */
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117 /* INPUTS */
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118 /* */
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119 /* None */
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120 /* */
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121 /* OUTPUTS */
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122 /* */
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123 /* TCD_Created_Tasks_List List of created tasks */
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124 /* TCD_Total_Tasks Number of created tasks */
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125 /* TCD_Priority_List Ready task array */
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126 /* TCD_Priority_Groups Ready priority group bit map */
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127 /* TCD_Sub_Priority_Groups Sub-priority groups bit map */
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128 /* TCD_Highest_Priority Highest priority task */
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129 /* TCD_Execute_Task Top priority task to execute */
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130 /* TCD_Created_HISRs_List List of created HISRs */
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131 /* TCD_Total_HISRs Number of created HISRs */
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132 /* TCD_Active_HISR_Heads Active HISR list head ptrs */
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133 /* TCD_Active_HISR_Tails Active HISR list tail ptrs */
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134 /* TCD_Execute_HISR Top priority HISR to execute */
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Mychaela Falconia <falcon@freecalypso.org>
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135 /* TCD_Current_Thread Current thread pointer */
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136 /* TCD_Registered_LISRs Registered LISRs list */
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137 /* TCD_LISR_Pointers Pointers to active LISRs */
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138 /* TCD_Interrupt_Count Interrupt in progress counter*/
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139 /* TCD_Stack_Switched Interrupt stack switched flag*/
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Mychaela Falconia <falcon@freecalypso.org>
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140 /* TCD_List_Protect Protection of task list */
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Mychaela Falconia <falcon@freecalypso.org>
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141 /* TCD_Schedule_Protect Protection of scheduling */
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142 /* data structures. */
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Mychaela Falconia <falcon@freecalypso.org>
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143 /* TCD_HISR_Protect Protection of created HISR */
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144 /* list */
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Mychaela Falconia <falcon@freecalypso.org>
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145 /* TCD_Interrupt_Level Enable interrupt level */
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146 /* */
0f80e1e4dce4 src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
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147 /* HISTORY */
0f80e1e4dce4 src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
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148 /* */
0f80e1e4dce4 src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
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149 /* DATE REMARKS */
0f80e1e4dce4 src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
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150 /* */
0f80e1e4dce4 src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
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151 /* 03-01-1993 Created initial version 1.0 */
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152 /* 04-19-1993 Verified version 1.0 */
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153 /* 08-09-1993 Corrected problem initializing */
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154 /* the LISR association table, */
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155 /* resulting in version 1.0a */
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Mychaela Falconia <falcon@freecalypso.org>
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156 /* 08-09-1993 Verified version 1.0a */
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157 /* 03-01-1994 Changed to initialize the system */
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158 /* protection rather than the */
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Mychaela Falconia <falcon@freecalypso.org>
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159 /* schedule protection, resulting */
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Mychaela Falconia <falcon@freecalypso.org>
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160 /* in version 1.1 */
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161 /* */
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162 /* 03-18-1994 Verified version 1.1 */
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163 /* */
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164 /*************************************************************************/
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165 VOID TCI_Initialize(VOID)
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166 {
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167
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168 int i; /* Working index variable */
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169
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170
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171 /* Initialize the created task list to NU_NULL. */
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172 TCD_Created_Tasks_List = NU_NULL;
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173
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174 /* Initialize the total number of created tasks to 0. */
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175 TCD_Total_Tasks = 0;
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176
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177 /* Initialize the array of ready task lists. */
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178 for (i = 0; i < TC_PRIORITIES; i++)
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179 TCD_Priority_List[i] = 0;
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180
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181 /* Initialize the bit maps that represent that at least one task is
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182 ready at the same priority level. */
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183 TCD_Priority_Groups = 0;
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184
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185 for (i = 0; i < TC_MAX_GROUPS; i++)
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186 TCD_Sub_Priority_Groups[i] = 0;
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187
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188 /* Initialize the highest priority flag. */
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189 TCD_Highest_Priority = TC_PRIORITIES;
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190
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191 /* Initialize pointers to the task to execute, HISR to execute,
0f80e1e4dce4 src/nucleus: library C code import from FreeNucleus package
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192 and current thread of execution. */
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193 TCD_Execute_Task = NU_NULL;
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194 TCD_Execute_HISR = NU_NULL;
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195 TCD_Current_Thread = NU_NULL;
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196
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197 /* Initialize the created HISRs list to NU_NULL. */
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198 TCD_Created_HISRs_List = NU_NULL;
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199
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200 /* Initialize the total number of created HISRs to 0. */
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201 TCD_Total_HISRs = 0;
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202
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203 /* Initialize the array of ready HISR list pointers. */
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204 for (i = 0; i < TC_HISR_PRIORITIES; i++)
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205 {
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206 TCD_Active_HISR_Heads[i] = NU_NULL;
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207 TCD_Active_HISR_Tails[i] = NU_NULL;
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208 }
0f80e1e4dce4 src/nucleus: library C code import from FreeNucleus package
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209
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210 /* Initialize the LISR interrupt control data structures. */
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211 for (i = 0; i <= NU_MAX_VECTORS; i++)
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212 TCD_Registered_LISRs[i] = NU_FALSE;
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213
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214 for (i = 0; i <= NU_MAX_LISRS; i++)
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215 TCD_LISR_Pointers[i] = NU_NULL;
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216
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217 /* Initialize the interrupt processing variables. */
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218 TCD_Interrupt_Count = 0;
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219 TCD_Stack_Switched = 0;
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220
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221 /* Initialize the task control protection structures. */
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222 TCD_List_Protect.tc_tcb_pointer = NU_NULL;
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223 TCD_System_Protect.tc_tcb_pointer = NU_NULL;
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224 TCD_LISR_Protect.tc_tcb_pointer = NU_NULL;
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225 TCD_HISR_Protect.tc_tcb_pointer = NU_NULL;
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226
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227 /* Initialize the interrupt level to enable all interrupts. */
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228 TCD_Interrupt_Level = NU_ENABLE_INTERRUPTS;
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229 }
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230
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231
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232
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233
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234