annotate src/nucleus/tmc.c @ 27:cb3f6fe694e1 default tip

README: document SE K2x0 addition
author Mychaela Falconia <falcon@freecalypso.org>
date Thu, 21 Dec 2023 21:44:43 +0000
parents 92470e5d0b9e
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 /* 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);
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
138
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
139
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
140
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
141 /*************************************************************************/
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
142 /* */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
143 /* FUNCTION */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
144 /* */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
145 /* TMC_Init_Task_Timer */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
146 /* */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
147 /* DESCRIPTION */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
148 /* */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
149 /* This function is responsible for initializing the supplied task */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
150 /* timer. This routine must be called from Supervisor mode in a */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
151 /* Supervisor/User mode switching kernel. */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
152 /* */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
153 /* CALLED BY */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
154 /* */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
155 /* TCC_Create_Task Task create function */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
156 /* */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
157 /* CALLS */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
158 /* */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
159 /* None */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
160 /* */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
161 /* INPUTS */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
162 /* */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
163 /* timer Timer control block pointer */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
164 /* information Information pointer - always */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
165 /* the task pointer */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
166 /* */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
167 /* OUTPUTS */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
168 /* */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
169 /* None */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
170 /* */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
171 /* HISTORY */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
172 /* */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
173 /* DATE REMARKS */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
174 /* */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
175 /* 03-01-1993 Created initial version 1.0 */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
176 /* 04-19-1993 Verified version 1.0 */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
177 /* */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
178 /*************************************************************************/
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
179 VOID TMC_Init_Task_Timer(TM_TCB *timer, VOID *information)
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
180 {
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
181
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
182 /* Initialize the task timer. */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
183 timer -> tm_timer_type = TM_TASK_TIMER;
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
184 timer -> tm_information = information;
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
185 timer -> tm_next_timer = NU_NULL;
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
186 timer -> tm_previous_timer = NU_NULL;
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
187 }
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
188
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
189
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
190 /*************************************************************************/
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
191 /* */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
192 /* FUNCTION */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
193 /* */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
194 /* TMC_Start_Task_Timer */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
195 /* */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
196 /* DESCRIPTION */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
197 /* */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
198 /* This function is responsible for starting a task timer. Note */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
199 /* that there are some special protection considerations since */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
200 /* this function is called from the task control component. This */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
201 /* routine must be called from Supervisor mode in a Supervisor/User */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
202 /* mode switching kernel. */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
203 /* */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
204 /* CALLED BY */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
205 /* */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
206 /* TCC_Suspend_Task Suspend task with a timeout */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
207 /* */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
208 /* CALLS */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
209 /* */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
210 /* TMC_Start_Timer Start the timer */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
211 /* */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
212 /* INPUTS */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
213 /* */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
214 /* timer Timer control block pointer */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
215 /* time Time associated with timer */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
216 /* */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
217 /* OUTPUTS */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
218 /* */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
219 /* None */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
220 /* */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
221 /* HISTORY */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
222 /* */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
223 /* DATE REMARKS */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
224 /* */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
225 /* 03-01-1993 Created initial version 1.0 */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
226 /* 04-19-1993 Verified version 1.0 */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
227 /* 03-01-1994 Removed protection logic since */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
228 /* system protect is in force at */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
229 /* the time this function is */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
230 /* called, resulting in */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
231 /* version 1.1 */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
232 /* */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
233 /* 03-18-1994 Verified version 1.1 */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
234 /* */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
235 /*************************************************************************/
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
236 VOID TMC_Start_Task_Timer(TM_TCB *timer, UNSIGNED time)
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
237 {
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
238
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
239 /* Start the specified timer. */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
240 TMC_Start_Timer(timer, time);
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
241 }
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
242
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
243
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
244 /*************************************************************************/
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
245 /* */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
246 /* FUNCTION */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
247 /* */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
248 /* TMC_Stop_Task_Timer */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
249 /* */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
250 /* DESCRIPTION */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
251 /* */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
252 /* This function is responsible for stopping a task timer. Note */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
253 /* that there are some special protection considerations since */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
254 /* this function is called from the task control component. This */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
255 /* routine must be called from Supervisor mode in a Supervisor/User */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
256 /* mode switching kernel. */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
257 /* */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
258 /* CALLED BY */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
259 /* */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
260 /* TCC_Resume_Task Resume task function */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
261 /* TCC_Terminate_Task Terminate task function */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
262 /* */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
263 /* CALLS */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
264 /* */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
265 /* TMC_Stop_Timer Stop the timer */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
266 /* */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
267 /* INPUTS */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
268 /* */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
269 /* timer Timer control block pointer */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
270 /* */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
271 /* OUTPUTS */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
272 /* */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
273 /* None */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
274 /* */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
275 /* HISTORY */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
276 /* */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
277 /* DATE REMARKS */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
278 /* */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
279 /* 03-01-1993 Created initial version 1.0 */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
280 /* 04-19-1993 Verified version 1.0 */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
281 /* 03-01-1994 Removed protection logic since */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
282 /* system protect is in force at */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
283 /* the time this function is */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
284 /* called, resulting in */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
285 /* version 1.1 */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
286 /* */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
287 /* 03-18-1994 Verified version 1.1 */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
288 /* */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
289 /*************************************************************************/
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
290 VOID TMC_Stop_Task_Timer(TM_TCB *timer)
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
291 {
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
292
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
293 /* Stop the specified timer - if it is still active. */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
294 if (timer -> tm_next_timer)
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
295
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
296 TMC_Stop_Timer(timer);
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
297 }
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
298
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
299
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
300 /*************************************************************************/
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
301 /* */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
302 /* FUNCTION */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
303 /* */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
304 /* TMC_Start_Timer */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
305 /* */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
306 /* DESCRIPTION */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
307 /* */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
308 /* This function is responsible for starting both application and */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
309 /* 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
310 /* in a Supervisor/User mode switching kernel. */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
311 /* */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
312 /* CALLED BY */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
313 /* */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
314 /* TMC_Control_Timer Control application timer */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
315 /* TMC_Start_Task_Timer Start task timer */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
316 /* */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
317 /* CALLS */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
318 /* */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
319 /* TMT_Read_Timer Read current timer counter */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
320 /* TMT_Adjust_Timer Adjust the count-down timer */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
321 /* TMT_Enable_Timer Enable count-down timer */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
322 /* */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
323 /* INPUTS */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
324 /* */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
325 /* timer Timer control block pointer */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
326 /* time Time associated with timer */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
327 /* */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
328 /* OUTPUTS */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
329 /* */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
330 /* None */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
331 /* */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
332 /* HISTORY */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
333 /* */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
334 /* DATE REMARKS */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
335 /* */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
336 /* 03-01-1993 Created initial version 1.0 */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
337 /* 04-19-1993 Verified version 1.0 */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
338 /* 08-09-1993 Added logic to check for timer */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
339 /* expiration before or during */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
340 /* another LISR's access, */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
341 /* resulting in version 1.0a */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
342 /* 08-09-1993 Verified version 1.0a */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
343 /* 03-01-1994 Removed disable timer logic to */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
344 /* insure there is no timer loss, */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
345 /* added register logic, */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
346 /* resulting in version 1.1 */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
347 /* */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
348 /* 03-18-1994 Verified version 1.1 */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
349 /* */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
350 /*************************************************************************/
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
351 VOID TMC_Start_Timer(TM_TCB *timer, UNSIGNED time)
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
352 {
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
353
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
354 R1 TM_TCB *list_ptr; /* Working pointer timer ptr */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
355 UNSIGNED elapsed; /* Elapsed time variable */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
356 INT done; /* Search finished flag */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
357
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
358
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
359 /* Note that protection over the active timer list is in force when this
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
360 function is called. */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
361
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
362 /* Determine if the active list is empty. */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
363 if (TMD_Active_Timers_List == NU_NULL)
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
364 {
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
365
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
366 /* Place the timer on an empty list. */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
367 timer -> tm_next_timer = timer;
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
368 timer -> tm_previous_timer = timer;
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
369
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
370 /* Link the timer to the list head. */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
371 TMD_Active_Timers_List = timer;
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
372
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
373 /* Setup the actual count-down timer structures. */
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
374 TMD_Timer_Start = time;
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
375 timer -> tm_remaining_time = time;
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
376
92470e5d0b9e src: partial import from FC Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
377
92470e5d0b9e src: partial import from FC Selenite
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.
92470e5d0b9e src: partial import from FC Selenite
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 src: partial import from FC Selenite
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 src: partial import from FC Selenite
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 src: partial import from FC Selenite
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