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annotate gsm-fw/nucleus/tmi.c @ 484:c617a6adcb69

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top level README: status update
author Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
date Sun, 29 Jun 2014 19:05:52 +0000
parents afceeeb2cba1
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 /* tmi.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 initialization routine for the timer */
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25 /* management component. */
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26 /* */
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27 /* DATA STRUCTURES */
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28 /* */
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29 /* None */
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30 /* */
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31 /* FUNCTIONS */
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32 /* */
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33 /* TMI_Initialize Timer Management Initialize */
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34 /* */
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35 /* DEPENDENCIES */
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36 /* */
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37 /* tc_extr.h Task function interfaces */
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38 /* er_extr.h Error handling function */
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39 /* tm_defs.h Timer component constants */
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40 /* */
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41 /* HISTORY */
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42 /* */
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43 /* DATE REMARKS */
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44 /* */
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45 /* 03-01-1993 Created initial version 1.0 */
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46 /* 04-19-1993 Verified version 1.0 */
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47 /* 08-09-1993 Removed timer task creation, */
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48 /* cleared the ID of the HISR */
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49 /* control block, and casted the */
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50 /* HISR priority, resulting in */
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51 /* version 1.0a */
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52 /* 08-09-1993 Verified version 1.0a */
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53 /* 03-01-1994 Changed names of HISR create */
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54 /* function, removed reference to */
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55 /* timer list protect since it */
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56 /* was deleted, resulting in */
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57 /* version 1.1 */
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58 /* */
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59 /* 03-18-1994 Verified version 1.1 */
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60 /* 04-17-1996 updated to version 1.2 */
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61 /* 03-24-1998 Released version 1.3 */
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62 /* 03-26-1999 Released 1.11m (new release */
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63 /* numbering scheme) */
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64 /* 04-17-2002 Released version 1.13m */
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65 /* 11-07-2002 Released version 1.14 */
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66 /*************************************************************************/
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67 #define NU_SOURCE_FILE
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68
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69
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70 #include "tc_extr.h" /* Task control functions */
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71 #include "er_extr.h" /* Error handling function */
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72 #include "tm_defs.h" /* Timer constants */
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73 #include "tm_extr.h" /* Timer interfaces */
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74
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75
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76 /* Define external inner-component global data references. */
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77
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78 extern CS_NODE *TMD_Created_Timers_List;
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79 extern UNSIGNED TMD_Total_Timers;
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80 extern TM_TCB *TMD_Active_Timers_List;
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81 extern INT TMD_Active_List_Busy;
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82 extern TC_PROTECT TMD_Created_List_Protect;
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83 extern UNSIGNED TMD_System_Clock;
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84 extern UNSIGNED TMD_Timer;
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85 extern INT TMD_Timer_State;
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86 extern UNSIGNED TMD_Time_Slice;
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87 extern TC_TCB *TMD_Time_Slice_Task;
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88 extern INT TMD_Time_Slice_State;
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89 extern TC_HCB TMD_HISR;
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90 extern VOID *TMD_HISR_Stack_Ptr;
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91 extern UNSIGNED TMD_HISR_Stack_Size;
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92 extern INT TMD_HISR_Priority;
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93
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94
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95 /* Define inner-component function prototypes. */
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96
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97 VOID TMC_Timer_HISR(VOID);
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98
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99
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100 /*************************************************************************/
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101 /* */
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102 /* FUNCTION */
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103 /* */
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104 /* TMI_Initialize */
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105 /* */
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106 /* DESCRIPTION */
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107 /* */
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108 /* This function initializes the data structures that control the */
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109 /* operation of the timer component (TM). There are no application */
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110 /* timers created initially. This routine must be called from */
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111 /* Supervisor mode in Supervisor/User mode switching kernels. */
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112 /* */
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113 /* CALLED BY */
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114 /* */
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115 /* INC_Initialize System initialization */
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116 /* */
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117 /* CALLS */
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118 /* */
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119 /* ERC_System_Error System error handing function*/
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120 /* TCC_Create_HISR Create timer HISR */
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121 /* TCCE_Create_HISR Create timer HISR (error chk)*/
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122 /* */
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123 /* INPUTS */
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124 /* */
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125 /* (Indirect) */
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126 /* TMD_HISR_Stack_Ptr Pointer to HISR stack area */
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127 /* TMD_HISR_Stack_Size Size of HISR stack */
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128 /* TMD_HISR_Priority Priority of timer HISR */
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129 /* */
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130 /* OUTPUTS */
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131 /* */
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132 /* TMD_Created_Timers_List Pointer to the linked-list */
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133 /* of created application */
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134 /* timers */
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135 /* TMD_Total_Timers Total number of created */
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136 /* application timers */
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137 /* TMD_Active_Timers_List Pointer to the linked-list */
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138 /* of active timers. */
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139 /* TMD_Active_List_Busy Flag indicating that the */
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140 /* active timer list is in use*/
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141 /* TMD_Created_List_Protect Created timer list protect */
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142 /* structure */
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143 /* TMD_System_Clock System clock */
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144 /* TMD_Timer Timer count-down value */
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
145 /* TMD_Timer_State State of timer */
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
146 /* TMD_Time_Slice Time slice count-down value */
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
147 /* TMD_Time_Slice_Task Pointer to task to time-slice*/
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
148 /* TMD_Time_Slice_State State of time slice */
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
149 /* TMD_HISR Timer HISR control block */
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
150 /* */
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
151 /* HISTORY */
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
152 /* */
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
153 /* DATE REMARKS */
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
154 /* */
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
155 /* 03-01-1993 Created initial version 1.0 */
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
156 /* 04-19-1993 Verified version 1.0 */
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
157 /* 08-09-1993 Removed timer task creation, */
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
158 /* cleared the ID of the HISR */
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
159 /* control block, and casted the */
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
160 /* HISR priority, resulting in */
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
161 /* version 1.0a */
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
162 /* 08-09-1993 Verified version 1.0a */
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
163 /* 03-01-1994 Modified HISR create function */
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
164 /* interface, removed reference */
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
165 /* to timer list protect since it */
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
166 /* was deleted, resulting in */
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
167 /* version 1.1 */
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
168 /* */
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
169 /* 03-18-1994 Verified version 1.1 */
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
170 /* */
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
171 /*************************************************************************/
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
172 VOID TMI_Initialize(VOID)
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
173 {
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
174
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
175 STATUS status; /* Return status of creates */
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
176
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
177
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
178 /* Initialize the created application timer's list to NU_NULL. */
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
179 TMD_Created_Timers_List = NU_NULL;
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
180
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
181 /* Initialize the total number of created application timers to 0. */
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
182 TMD_Total_Timers = 0;
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
183
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
184 /* Initialize the active timer's list to NU_NULL. */
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
185 TMD_Active_Timers_List = NU_NULL;
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
186
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
187 /* Clear the active timer list busy flag. */
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
188 TMD_Active_List_Busy = NU_FALSE;
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
189
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
190 /* Initialize the system clock to 0. */
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
191 TMD_System_Clock = 0;
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
192
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
193 /* Initialize the timer to 0 and the timer state to "not active." */
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
194 TMD_Timer = 0;
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
195 TMD_Timer_State = TM_NOT_ACTIVE;
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
196
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
197 /* Initialize the time-slice timer, task pointer, and the associated
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
198 state variable. */
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
199 TMD_Time_Slice = 0;
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
200 TMD_Time_Slice_Task = NU_NULL;
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
201 TMD_Time_Slice_State = TM_NOT_ACTIVE;
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
202
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
203 /* Initialize the list protection structures. */
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
204 TMD_Created_List_Protect.tc_tcb_pointer = NU_NULL;
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
205
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
206 /* Clear out the timer HISR control block. */
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
207 TMD_HISR.tc_id = 0;
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
208
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
209 /* Create the timer HISR. The timer HISR is responsible for performing
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
210 the time slice function and activating the timer task if necessary. */
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
211 #ifdef NU_NO_ERROR_CHECKING
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
212
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
213 status = TCC_Create_HISR((NU_HISR *) &TMD_HISR, "SYSTEM H",
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
214 TMC_Timer_HISR, (OPTION) TMD_HISR_Priority,
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
215 TMD_HISR_Stack_Ptr, TMD_HISR_Stack_Size);
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
216 #else
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
217
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
218 status = TCCE_Create_HISR((NU_HISR *) &TMD_HISR, "SYSTEM H",
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
219 TMC_Timer_HISR, (OPTION) TMD_HISR_Priority,
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
220 TMD_HISR_Stack_Ptr, TMD_HISR_Stack_Size);
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
221
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
222 #endif
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
223
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
224 /* Check for a system error creating the timer HISR. */
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
225 if (status != NU_SUCCESS)
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
226
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
227 /* Call the system error handler. */
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
228 ERC_System_Error(NU_ERROR_CREATING_TIMER_HISR);
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
229 }
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
230
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
231
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
232
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
233
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
234