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comparison src/nucleus/tc_extr.h @ 0:92470e5d0b9e

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src: partial import from FC Selenite
author Mychaela Falconia <falcon@freecalypso.org>
date Fri, 15 May 2020 01:28:16 +0000
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-1:000000000000 0:92470e5d0b9e
1 /*************************************************************************/
2 /* */
3 /* Copyright Mentor Graphics Corporation 2002 */
4 /* All Rights Reserved. */
5 /* */
6 /* THIS WORK CONTAINS TRADE SECRET AND PROPRIETARY INFORMATION WHICH IS */
7 /* THE PROPERTY OF MENTOR GRAPHICS CORPORATION OR ITS LICENSORS AND IS */
8 /* SUBJECT TO LICENSE TERMS. */
9 /* */
10 /*************************************************************************/
11
12 /*************************************************************************/
13 /* */
14 /* FILE NAME VERSION */
15 /* */
16 /* tc_extr.h Nucleus PLUS 1.14 */
17 /* */
18 /* COMPONENT */
19 /* */
20 /* TC - Thread Control */
21 /* */
22 /* DESCRIPTION */
23 /* */
24 /* This file contains function prototypes of all functions */
25 /* accessible to other components. */
26 /* */
27 /* DATA STRUCTURES */
28 /* */
29 /* None */
30 /* */
31 /* FUNCTIONS */
32 /* */
33 /* None */
34 /* */
35 /* DEPENDENCIES */
36 /* */
37 /* tc_defs.h Thread Control constants */
38 /* */
39 /* HISTORY */
40 /* */
41 /* DATE REMARKS */
42 /* */
43 /* 03-01-1993 Created initial version 1.0 */
44 /* 04-19-1993 Verified version 1.0 */
45 /* 03-01-1994 Added validation utility for */
46 /* error checking functions for */
47 /* resume service and resume */
48 /* driver, resulting in */
49 /* version 1.0a */
50 /* 03-01-1994 Verified version 1.0a */
51 /* 03-01-1994 Moved include files outside of */
52 /* the file #ifndef to allow the */
53 /* use of actual data structures, */
54 /* added system protect pseudo */
55 /* function, added set suspend */
56 /* protect pseudo function, */
57 /* added optimization for targets */
58 /* able to access pointers in a */
59 /* single instruction, changed */
60 /* function names due to changes */
61 /* in file structure, resulting */
62 /* in version 1.1 */
63 /* */
64 /* 03-18-1994 Verified version 1.1 */
65 /* */
66 /* 01-24-1996 Corrected a type on line 200: */
67 /* TCT_Control_Interrupts, */
68 /* resulting in version 1.1+ */
69 /* 04-17-1996 updated to version 1.2 */
70 /* 03-24-1998 Released version 1.3 */
71 /* 03-26-1999 Released 1.11m (new release */
72 /* numbering scheme) */
73 /* 04-17-2002 Released version 1.13m */
74 /* 11-07-2002 Released version 1.14 */
75 /*************************************************************************/
76
77 #include "tc_defs.h" /* Include TC constants */
78
79
80 /* Check to see if the file has been included already. */
81
82 #ifndef TC_EXTR
83 #define TC_EXTR
84
85
86 /* Define external reference for the system protection. */
87
88 extern TC_PROTECT TCD_System_Protect;
89 extern VOID *TCD_Current_Thread;
90
91
92 /* Initialization functions. */
93
94 VOID TCI_Initialize(VOID);
95
96
97 /* Core error checking functions. */
98
99 #ifndef NU_NO_ERROR_CHECKING
100 BOOLEAN TCC_Validate_Resume(OPTION resume_type, NU_TASK *task_ptr);
101 #endif
102
103 STATUS TCCE_Activate_HISR(NU_HISR *hisr_ptr);
104 STATUS TCCE_Create_Task(NU_TASK *task_ptr, CHAR *name,
105 VOID (*task_entry)(UNSIGNED, VOID *), UNSIGNED argc,
106 VOID *argv, VOID *stack_address, UNSIGNED stack_size,
107 OPTION priority, UNSIGNED time_slice,
108 OPTION preempt, OPTION auto_start);
109 STATUS TCCE_Reset_Task(NU_TASK *task_ptr, UNSIGNED argc, VOID *argv);
110 STATUS TCCE_Create_HISR(NU_HISR *hisr_ptr, CHAR *name,
111 VOID (*hisr_entry)(VOID), OPTION priority,
112 VOID *stack_address, UNSIGNED stack_size);
113 STATUS TCCE_Terminate_Task(NU_TASK *task_ptr);
114 STATUS TCCE_Delete_Task(NU_TASK *task_ptr);
115 STATUS TCCE_Delete_HISR(NU_HISR *hisr_ptr);
116 STATUS TCCE_Resume_Service(NU_TASK *task_ptr);
117 STATUS TCCE_Suspend_Service(NU_TASK *task_ptr);
118 VOID TCCE_Relinquish(VOID);
119 VOID TCCE_Task_Sleep(UNSIGNED ticks);
120 STATUS TCCE_Validate_Resume(OPTION resume_type, NU_TASK *task_ptr);
121 INT TCCE_Suspend_Error(VOID);
122 STATUS TCFE_Task_Information(NU_TASK *task_ptr, CHAR *name,
123 DATA_ELEMENT *status, UNSIGNED *scheduled_count,
124 DATA_ELEMENT *priority, OPTION *preempt, UNSIGNED *time_slice,
125 VOID **stack_base, UNSIGNED *stack_size,
126 UNSIGNED *minimum_stack);
127
128
129 /* Supplemental error checking functions. */
130
131 OPTION TCSE_Change_Priority(NU_TASK *task_ptr, OPTION new_priority);
132 OPTION TCSE_Change_Preemption(OPTION preempt);
133 UNSIGNED TCSE_Change_Time_Slice(NU_TASK *task_ptr, UNSIGNED time_slice);
134 UNSIGNED TCSE_Control_Signals(UNSIGNED signal_enable_mask);
135 UNSIGNED TCSE_Receive_Signals(VOID);
136 STATUS TCSE_Register_Signal_Handler(VOID (*signal_handler)(UNSIGNED));
137 STATUS TCSE_Send_Signals(NU_TASK *task_ptr, UNSIGNED signals);
138
139
140 /* Core processing functions. */
141
142 STATUS TCT_Activate_HISR(NU_HISR *hisr_ptr);
143 STATUS TCC_Create_Task(NU_TASK *task_ptr, CHAR *name,
144 VOID (*task_entry)(UNSIGNED, VOID *), UNSIGNED argc,
145 VOID *argv, VOID *stack_address, UNSIGNED stack_size,
146 OPTION priority, UNSIGNED time_slice,
147 OPTION preempt, OPTION auto_start);
148 STATUS TCC_Reset_Task(NU_TASK *task_ptr, UNSIGNED argc, VOID *argv);
149 STATUS TCC_Create_HISR(NU_HISR *hisr_ptr, CHAR *name,
150 VOID (*hisr_entry)(VOID), OPTION priority,
151 VOID *stack_address, UNSIGNED stack_size);
152 STATUS TCC_Terminate_Task(NU_TASK *task_ptr);
153 STATUS TCC_Delete_Task(NU_TASK *task_ptr);
154 STATUS TCC_Delete_HISR(NU_HISR *hisr_ptr);
155 STATUS TCC_Resume_Task(NU_TASK *task_ptr, OPTION suspend_type);
156 STATUS TCC_Resume_Service(NU_TASK *task_ptr);
157 VOID TCC_Suspend_Task(NU_TASK *task_ptr, OPTION suspend_type,
158 VOID (*cleanup)(VOID *),
159 VOID *information, UNSIGNED timeout);
160 STATUS TCC_Suspend_Service(NU_TASK *task_ptr);
161 VOID TCC_Task_Timeout(NU_TASK *task_ptr);
162 VOID TCC_Task_Sleep(UNSIGNED ticks);
163 VOID TCC_Relinquish(VOID);
164 VOID TCC_Time_Slice(NU_TASK *task_ptr);
165 NU_TASK *TCC_Current_Task_Pointer(VOID);
166 NU_HISR *TCC_Current_HISR_Pointer(VOID);
167 VOID TCC_Dispatch_LISR(INT vector);
168 STATUS TCC_Register_LISR(INT vector, VOID (*new_lisr)(INT),
169 VOID (**old_lisr)(INT));
170
171
172 /* Supplemental functions. */
173
174 OPTION TCS_Change_Priority(NU_TASK *task_ptr, OPTION new_priority);
175 OPTION TCS_Change_Preemption(OPTION preempt);
176 UNSIGNED TCS_Change_Time_Slice(NU_TASK *task_ptr, UNSIGNED time_slice);
177 UNSIGNED TCS_Control_Signals(UNSIGNED signal_enable_mask);
178 UNSIGNED TCS_Receive_Signals(VOID);
179 STATUS TCS_Register_Signal_Handler(VOID (*signal_handler)(UNSIGNED));
180 STATUS TCS_Send_Signals(NU_TASK *task, UNSIGNED signals);
181
182
183 /* Information retrieval functions. */
184
185 UNSIGNED TCF_Established_Tasks(VOID);
186 UNSIGNED TCF_Established_HISRs(VOID);
187 STATUS TCF_Task_Information(NU_TASK *task, CHAR *name,
188 DATA_ELEMENT *status, UNSIGNED *scheduled_count,
189 OPTION *priority, OPTION *preempt,
190 UNSIGNED *time_slice, VOID **stack_base,
191 UNSIGNED *stack_size, UNSIGNED *minimum_stack);
192 STATUS TCF_HISR_Information(NU_HISR *hisr, CHAR *name,
193 UNSIGNED *scheduled_count, DATA_ELEMENT *priority,
194 VOID **stack_base, UNSIGNED *stack_size,
195 UNSIGNED *minimum_stack);
196 UNSIGNED TCF_Task_Pointers(NU_TASK **pointer_list,
197 UNSIGNED maximum_pointers);
198 UNSIGNED TCF_HISR_Pointers(NU_HISR **pointer_list,
199 UNSIGNED maximum_pointers);
200
201 /* Target dependent functions. */
202
203 UNSIGNED TCT_Check_Stack(VOID);
204 VOID TCT_Schedule(VOID);
205 VOID TCT_Restore_Interrupts(VOID);
206 VOID TCT_Protect(TC_PROTECT *protect);
207 VOID TCT_Unprotect(VOID);
208 VOID TCT_Unprotect_Specific(TC_PROTECT *protect);
209 VOID TCT_Set_Current_Protect(TC_PROTECT *protect);
210 VOID TCT_Control_To_System(VOID);
211 INT TCT_Control_Interrupts(INT new_level);
212 INT TCT_Local_Control_Interrupts(INT new_level);
213
214 #ifdef NU_ENABLE_STACK_CHECK
215 #define NU_CHECK_STACK() TCT_Check_Stack()
216 #else /* no stack checking */
217 #define NU_CHECK_STACK() ((void)0)
218 #endif /* NU_ENABLE_STACK_CHECK */
219
220
221 /* Determine if pointers are accessible with a single instruction. If so,
222 just reference the pointer directly. Otherwise, call the assembly
223 service. */
224
225 #if NU_POINTER_ACCESS == 1
226 extern TC_TCB *TCD_Execute_Task;
227 #define TCT_Current_Thread() TCD_Current_Thread
228 #define TCT_Set_Execute_Task(task) TCD_Execute_Task = task
229 #else
230 VOID *TCT_Current_Thread(VOID);
231 VOID TCT_Set_Execute_Task(TC_TCB *task);
232 #endif
233
234 /* Define pseudo function used by internal components of the system. */
235
236 #define TCT_System_Protect() TCT_Protect(&TCD_System_Protect)
237 #define TCT_System_Unprotect() \
238 TCT_Unprotect_Specific(&TCD_System_Protect)
239 #define TCT_Set_Suspend_Protect(protect) \
240 ((TC_TCB *) TCD_Current_Thread) -> tc_suspend_protect = \
241 (TC_PROTECT *) protect
242 #define TCT_Get_Current_Protect() \
243 ((TC_TCB *) TCD_Current_Thread) -> tc_current_protect
244 #define TCC_Task_Priority(task) ((TC_TCB *) (task)) -> tc_priority
245 #endif
246
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