FreeCalypso > hg > fc-selenite
annotate src/nucleus/tcd.c @ 25:f188a6c5ec8e
components/alr: new source location
author | Mychaela Falconia <falcon@freecalypso.org> |
---|---|
date | Sun, 15 Jul 2018 23:09:33 +0000 |
parents | 0f80e1e4dce4 |
children |
rev | line source |
---|---|
7
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
1 /*************************************************************************/ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2 /* */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
3 /* Copyright Mentor Graphics Corporation 2002 */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
4 /* All Rights Reserved. */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
5 /* */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
6 /* THIS WORK CONTAINS TRADE SECRET AND PROPRIETARY INFORMATION WHICH IS */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
7 /* THE PROPERTY OF MENTOR GRAPHICS CORPORATION OR ITS LICENSORS AND IS */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
8 /* SUBJECT TO LICENSE TERMS. */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
9 /* */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
10 /*************************************************************************/ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
11 |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
12 /*************************************************************************/ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
13 /* */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
14 /* FILE NAME VERSION */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
15 /* */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
16 /* tcd.c Nucleus PLUS 1.14 */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
17 /* */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
18 /* COMPONENT */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
19 /* */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
20 /* TC - Thread Control */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
21 /* */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
22 /* DESCRIPTION */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
23 /* */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
24 /* This file contains global data structures for use within this */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
25 /* component. */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
26 /* */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
27 /* DATA STRUCTURES */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
28 /* */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
29 /* TCD_Created_Tasks_List Pointer to the linked-list */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
30 /* of created tasks */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
31 /* TCD_Total_Tasks Total number of created tasks*/ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
32 /* TCD_Priority_List Array of pointers to ready */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
33 /* tasks, indexed by priority */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
34 /* TCD_Execute_Task Highest priority task to */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
35 /* execute */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
36 /* TCD_Priority_Groups Bit map of 32 groups of task */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
37 /* priority */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
38 /* TCD_Sub_Priority_Groups An array of 32 sub-priority */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
39 /* groups */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
40 /* TCD_Lowest_Set_Bit Lookup table to find the */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
41 /* lowest bit set in a byte */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
42 /* TCD_Highest_Priority Highest priority ready */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
43 /* TCD_Created_HISRs_List Pointer to the linked-list */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
44 /* of created HISRs */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
45 /* TCD_Total_HISRs Total number of created HISRs*/ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
46 /* TCD_Active_HISR_Heads Active HISR list head ptrs */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
47 /* TCD_Active_HISR_Tails Active HISR list tail ptrs */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
48 /* TCD_Execute_HISR Highest priority HISR to */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
49 /* execute */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
50 /* TCD_Current_Thread Pointer to the currently */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
51 /* executing thread */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
52 /* TCD_Registered_LISRs List of registered LISRs */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
53 /* TCD_LISR_Pointers Actual LISR pointers */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
54 /* TCD_Interrupt_Count Count of ISRs in progress */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
55 /* TCD_Stack_Switched Flag indicating that stack */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
56 /* was switched in an ISR */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
57 /* TCD_List_Protect Task list protection */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
58 /* TCD_System_Protect System protection */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
59 /* TCD_System_Stack System stack pointer - top */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
60 /* TCD_LISR_Protect Protect LISR registration */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
61 /* TCD_HISR_Protect Protect the list of created */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
62 /* HISRs */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
63 /* TCD_Interrupt_Level Enable interrupt level */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
64 /* TCD_Unhandled_Interrupt Contains the most recent */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
65 /* unhandled interrupt in */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
66 /* system error conditions */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
67 /* */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
68 /* FUNCTIONS */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
69 /* */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
70 /* None */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
71 /* */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
72 /* DEPENDENCIES */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
73 /* */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
74 /* cs_defs.h Common Service constants */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
75 /* tc_defs.h Thread Control constants */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
76 /* */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
77 /* HISTORY */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
78 /* */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
79 /* DATE REMARKS */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
80 /* */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
81 /* 03-01-1993 Created initial version 1.0 */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
82 /* 04-19-1993 Verified version 1.0 */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
83 /* 01-01-1993 Added variable to save last */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
84 /* unhandled interrupt in system */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
85 /* error conditions, resulting in */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
86 /* version 1.0a */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
87 /* 11-01-1993 Verified version 1.0a */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
88 /* 03-01-1994 Change schedule protection to a */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
89 /* system protection to improve */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
90 /* performance, resulting in */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
91 /* version 1.1 */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
92 /* */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
93 /* 03-18-1994 Verified version 1.1 */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
94 /* 04-17-1996 updated to version 1.2 */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
95 /* 03-24-1998 Released version 1.3. */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
96 /* 03-26-1999 Released 1.11m (new release */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
97 /* numbering scheme) */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
98 /* 04-23-2001 Made TCD_LISR_Pointers array an exclusive count */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
99 /* 04-17-2002 Released version 1.13m */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
100 /* 11-07-2002 Released version 1.14 */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
101 /*************************************************************************/ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
102 #define NU_SOURCE_FILE |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
103 |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
104 #include "cs_defs.h" /* Common Service constants */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
105 #include "tc_defs.h" /* Thread Control constants */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
106 |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
107 |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
108 /* TCD_Created_Tasks_List is the head pointer of the linked list of |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
109 created tasks. If the list is NU_NULL, there are no tasks created. */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
110 |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
111 CS_NODE *TCD_Created_Tasks_List; |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
112 |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
113 |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
114 /* TCD_Total_Tasks contains the number of currently created tasks. */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
115 |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
116 UNSIGNED TCD_Total_Tasks; |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
117 |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
118 |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
119 /* TCD_Priority_List is an array of TCB pointers. Each element of the array |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
120 is effectively the head pointer of the list of tasks ready for execution |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
121 at that priority. If the pointer is NULL, there are no tasks ready |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
122 for execution at that priority. The array is indexed by priority. */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
123 |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
124 TC_TCB *TCD_Priority_List[TC_PRIORITIES]; |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
125 |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
126 |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
127 /* TCD_Priority_Groups is a 32-bit unsigned integer that is used as a bit |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
128 map. Each bit corresponds to an 8-priority group. For example, if bit 0 |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
129 is set, at least one task of priority 0 through 8 is ready for execution. */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
130 |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
131 UNSIGNED TCD_Priority_Groups; |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
132 |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
133 |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
134 /* TCD_Sub_Priority_Groups is an array of sub-priority groups. These are |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
135 also used as bit maps. Index 0 of this array corresponds to priorities |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
136 0 through 8. Bit 0 of this element represents priority 0, while bit 7 |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
137 represents priority 7. */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
138 |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
139 DATA_ELEMENT TCD_Sub_Priority_Groups[TC_MAX_GROUPS]; |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
140 |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
141 |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
142 /* TCD_Lowest_Set_Bit is nothing more than a standard lookup table. The |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
143 table is indexed by values ranging from 1 to 255. The value at that |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
144 position in the table indicates the number of the lowest set bit. This is |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
145 used to determine the highest priority task represented in the previously |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
146 defined bit maps. */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
147 |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
148 UNSIGNED_CHAR TCD_Lowest_Set_Bit[] = {0, |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
149 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0, 4, 0, 1, 0, 2, 0, 1, 0, 3, 0, |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
150 1, 0, 2, 0, 1, 0, 5, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0, 4, 0, 1, |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
151 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0, 6, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
152 2, 0, 1, 0, 4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0, 5, 0, 1, 0, 2, |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
153 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0, 4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
154 1, 0, 7, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0, 4, 0, 1, 0, 2, 0, 1, |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
155 0, 3, 0, 1, 0, 2, 0, 1, 0, 5, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0, |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
156 4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0, 6, 0, 1, 0, 2, 0, 1, 0, 3, |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
157 0, 1, 0, 2, 0, 1, 0, 4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0, 5, 0, |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
158 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0, 4, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
159 0, 2, 0, 1, 0}; |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
160 |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
161 |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
162 /* TCD_Highest_Priority contains the highest priority task ready for execution. |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
163 Note that this does not necessarily represent the priority of the currently |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
164 executing task. This is true if the currently executing task has preemption |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
165 disabled. If no tasks are executing, this variable is set to the maximum |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
166 priority. */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
167 |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
168 INT TCD_Highest_Priority; |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
169 |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
170 |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
171 /* TCD_Execute_Task is a pointer to the task to execute. Note that this |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
172 pointer does not necessarily point to the currently executing task. There |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
173 are several points in the system where this is true. One situation is |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
174 when preemption is about to take place. Another situation can result from |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
175 a internal protection conflict. */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
176 |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
177 TC_TCB *TCD_Execute_Task; |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
178 |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
179 |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
180 /* TCD_Created_HISRs_List is the head pointer of the list of created High- |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
181 Level Interrupt Service Routines (HISR). If this pointer is NU_NULL, there |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
182 are no HISRs currently created. */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
183 |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
184 CS_NODE *TCD_Created_HISRs_List; |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
185 |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
186 |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
187 /* TCD_Total_HISRs contains the number of currently created HISRs. */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
188 |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
189 UNSIGNED TCD_Total_HISRs; |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
190 |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
191 |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
192 /* TCD_Active_HISR_Heads is an array of active HISR list head pointers. |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
193 There are three HISR priorities available. The HISR priority is an index |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
194 into this table. Priority/index 0 represents the highest priority. */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
195 |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
196 TC_HCB *TCD_Active_HISR_Heads[TC_HISR_PRIORITIES]; |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
197 |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
198 |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
199 /* TCD_Active_HISR_Tails is an array of active HISR list tail pointers. |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
200 There are three HISR priorities available. The HISR priority is an index |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
201 into this table. Priority/index 0 represents the highest priority. */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
202 |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
203 TC_HCB *TCD_Active_HISR_Tails[TC_HISR_PRIORITIES]; |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
204 |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
205 |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
206 /* TCD_Execute_HISR contains a pointer to the highest priority HISR to execute. |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
207 If this pointer is NU_NULL, no HISRs are currently activated. Note that |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
208 the current thread pointer is not always equal to this pointer. */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
209 |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
210 TC_HCB *TCD_Execute_HISR; |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
211 |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
212 |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
213 /* TCD_Current_Thread points to the control block of the currently executing |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
214 thread of execution. Therefore, this variable points at either a TC_TCB |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
215 or a TC_HCB structure. Except for initialization, this variable is set |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
216 and cleared in the target dependent portion of this component. */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
217 |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
218 VOID *TCD_Current_Thread; |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
219 |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
220 |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
221 /* TCD_System_Stack contains the system stack base pointer. When the system |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
222 is idle or in interrupt processing the system stack pointer is used. This |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
223 variable is usually setup during target dependent initialization. */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
224 |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
225 VOID *TCD_System_Stack; |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
226 |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
227 |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
228 /* TCD_Registered_LISRs is a list that specifies whether or not a |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
229 LISR is registered for a given interrupt vector. If the value in the |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
230 list indexed by the vector is non-zero, then that value can be used |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
231 as the index into the list of LISR pointers to find the actual registered |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
232 LISR. */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
233 |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
234 UNSIGNED_CHAR TCD_Registered_LISRs[NU_MAX_VECTORS+1]; |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
235 |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
236 |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
237 /* TCD_LISR_Pointers is a list of LISR pointers that indicate the LISR function |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
238 to call when the interrupt occurs. If the entry is NULL, it is |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
239 available. */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
240 |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
241 VOID (*TCD_LISR_Pointers[NU_MAX_LISRS+1])(INT vector); |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
242 |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
243 |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
244 /* TCD_Interrupt_Count contains the number of Interrupt Service Routines (ISRs) |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
245 currently in progress. If the contents of this variable is zero, then no |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
246 interrupts are in progress. If the contents are greater than 1, nested |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
247 interrupts are being processed. */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
248 |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
249 INT TCD_Interrupt_Count; |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
250 |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
251 |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
252 /* TCD_Stack_Switched contains a flag indicating that the system stack was |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
253 switched to after the thread's context was saved. This variable is not |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
254 used in all ports. */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
255 |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
256 INT TCD_Stack_Switched; |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
257 |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
258 |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
259 /* TCD_List_Protect is a structure that is used to protect against multiple |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
260 access to the list of established tasks. */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
261 |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
262 TC_PROTECT TCD_List_Protect; |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
263 |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
264 |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
265 /* TCD_System_Protect is a structure that is used to provide protection |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
266 against multiple threads accessing the same system structures at the |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
267 same time. */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
268 |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
269 TC_PROTECT TCD_System_Protect; |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
270 |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
271 |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
272 /* TCD_LISR_Protect is a structure that is used to provide protection against |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
273 multiple threads accessing the LISR registration structures at the same |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
274 time. */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
275 |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
276 TC_PROTECT TCD_LISR_Protect; |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
277 |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
278 |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
279 /* TCD_HISR_Protect is a structure that is used to provide protection against |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
280 multiple threads accessing the created HISR linked-list at the same time. */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
281 |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
282 TC_PROTECT TCD_HISR_Protect; |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
283 |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
284 |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
285 /* TCD_Interrupt_Level is a variable that contains the enabled interrupt |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
286 level. If the target processor does not have multiple enable interrupt |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
287 levels, this variable is a boolean. */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
288 |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
289 INT TCD_Interrupt_Level; |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
290 |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
291 |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
292 /* TCD_Unhandled_Interrupt is a variable that contains the last unhandled |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
293 interrupt in system error conditions. */ |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
294 |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
295 INT TCD_Unhandled_Interrupt; |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
296 |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
297 |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
298 |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
299 |
0f80e1e4dce4
src/nucleus: library C code import from FreeNucleus package
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
300 |