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view src/cs/os/nucleus/tc_defs.h @ 200:07ece4691685
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| author | Mychaela Falconia <falcon@freecalypso.org> |
|---|---|
| date | Thu, 28 May 2020 05:42:13 +0000 |
| parents | b6a5e36de839 |
| children |
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/*************************************************************************/ /* */ /* Copyright (c) 1993-1994 Accelerated Technology, Inc. */ /* */ /* PROPRIETARY RIGHTS of Accelerated Technology are involved in the */ /* subject matter of this material. All manufacturing, reproduction, */ /* use, and sales rights pertaining to this subject matter are governed */ /* by the license agreement. The recipient of this software implicitly */ /* accepts the terms of the license. */ /* */ /*************************************************************************/ /*************************************************************************/ /* */ /* FILE NAME VERSION */ /* */ /* tc_defs.h PLUS 1.1 */ /* */ /* COMPONENT */ /* */ /* TC - Thread Control */ /* */ /* DESCRIPTION */ /* */ /* This file contains data structure definitions and constants for */ /* the component that controls the various threads of execution in */ /* system. Threads include tasks, HISRs, signal handlers, etc. */ /* */ /* AUTHOR */ /* */ /* William E. Lamie, Accelerated Technology, Inc. */ /* */ /* DATA STRUCTURES */ /* */ /* TC_TCB Task Control Block */ /* TC_HCB HISR Control Block */ /* TC_PROTECT Task/HISR protection struct */ /* */ /* FUNCTIONS */ /* */ /* None */ /* */ /* DEPENDENCIES */ /* */ /* cs_defs.h Common service definitions */ /* tm_defs.h Timer control definitions */ /* */ /* HISTORY */ /* */ /* NAME DATE REMARKS */ /* */ /* W. Lamie 03-01-1993 Created initial version 1.0 */ /* D. Lamie 04-19-1993 Verified version 1.0 */ /* W. Lamie 06-01-1993 Added padding conditional into */ /* TC_TCB structure, making */ /* version 1.0a */ /* D. Lamie 06-01-1993 Verified version 1.0a */ /* W. Lamie 03-01-1994 Moved include files outside of */ /* the file #ifndef to allow the */ /* use of actual data structures, */ /* added four reserved words in */ /* both the task and HISR blocks, */ /* resulting in version 1.1 */ /* R. Pfaff - */ /* D. Lamie 03-18-1994 Verified version 1.1 */ /* */ /*************************************************************************/ #include "cs_defs.h" /* Common service constants */ #include "tm_defs.h" /* Timer control structures */ /* Check to see if the file has been included already. */ #ifndef TC_DEFS #define TC_DEFS /* Define constants local to this component. */ #define TC_TASK_ID 0x5441534bUL #define TC_HISR_ID 0x48495352UL #define TC_PRIORITIES 256 #define TC_HISR_PRIORITIES 3 #define TC_MAX_GROUPS TC_PRIORITIES/8 #define TC_HIGHEST_MASK 0x000000FFUL #define TC_NEXT_HIGHEST_MASK 0x0000FF00UL #define TC_NEXT_LOWEST_MASK 0x00FF0000UL #define TC_LOWEST_MASK 0xFF000000UL /* Define the Task Control Block data type. */ typedef struct TC_TCB_STRUCT { /* Standard thread information first. This information is used by the target dependent portion of this component. Changes made to this area of the structure can have undesirable side effects. */ CS_NODE tc_created; /* Node for linking to */ /* created task list */ UNSIGNED tc_id; /* Internal TCB ID */ CHAR tc_name[NU_MAX_NAME]; /* Task name */ DATA_ELEMENT tc_status; /* Task status */ DATA_ELEMENT tc_delayed_suspend; /* Delayed task suspension*/ DATA_ELEMENT tc_priority; /* Task priority */ DATA_ELEMENT tc_preemption; /* Task preemption enable */ UNSIGNED tc_scheduled; /* Task scheduled count */ UNSIGNED tc_cur_time_slice; /* Current time slice */ VOID *tc_stack_start; /* Stack starting address */ VOID *tc_stack_end; /* Stack ending address */ VOID *tc_stack_pointer; /* Task stack pointer */ UNSIGNED tc_stack_size; /* Task stack's size */ UNSIGNED tc_stack_minimum; /* Minimum stack size */ struct TC_PROTECT_STRUCT *tc_current_protect; /* Current protection */ VOID *tc_saved_stack_ptr; /* Previous stack pointer */ UNSIGNED tc_time_slice; /* Task time slice value */ /* Information after this point is not used in the target dependent portion of this component. Hence, changes in the following section should not impact assembly language routines. */ struct TC_TCB_STRUCT *tc_ready_previous, /* Previously ready TCB */ *tc_ready_next; /* next and previous ptrs */ /* Task control information follows. */ UNSIGNED tc_priority_group; /* Priority group mask bit*/ struct TC_TCB_STRUCT **tc_priority_head; /* Pointer to list head */ DATA_ELEMENT *tc_sub_priority_ptr; /* Pointer to sub-group */ DATA_ELEMENT tc_sub_priority; /* Mask of sub-group bit */ DATA_ELEMENT tc_saved_status; /* Previous task status */ DATA_ELEMENT tc_signal_active; /* Signal active flag */ #if PAD_3 DATA_ELEMENT tc_padding[PAD_3]; #endif /* Task entry function */ VOID (*tc_entry)(UNSIGNED, VOID *); UNSIGNED tc_argc; /* Optional task argument */ VOID *tc_argv; /* Optional task argument */ VOID (*tc_cleanup) (VOID *);/* Clean-up routine */ VOID *tc_cleanup_info; /* Clean-up information */ struct TC_PROTECT_STRUCT *tc_suspend_protect; /* Protection at time of */ /* task suspension */ /* Task timer information. */ INT tc_timer_active; /* Active timer flag */ TM_TCB tc_timer_control; /* Timer control block */ /* Task signal control information. */ UNSIGNED tc_signals; /* Current signals */ UNSIGNED tc_enabled_signals; /* Enabled signals */ /* tc_saved_status and tc_signal_active are now defined above in an attempt to keep DATA_ELEMENT types together. */ /* Signal handling routine. */ VOID (*tc_signal_handler) (UNSIGNED); /* Reserved words for the system and a single reserved word for the application. */ UNSIGNED tc_system_reserved_1; /* System reserved word */ UNSIGNED tc_system_reserved_2; /* System reserved word */ UNSIGNED tc_system_reserved_3; /* System reserved word */ UNSIGNED tc_app_reserved_1; /* Application reserved */ } TC_TCB; /* Define the High-Level Interrupt Service Routine Control Block data type. */ typedef struct TC_HCB_STRUCT { /* Standard thread information first. This information is used by the target dependent portion of this component. Changes made to this area of the structure can have undesirable side effects. */ CS_NODE tc_created; /* Node for linking to */ /* created task list */ UNSIGNED tc_id; /* Internal TCB ID */ CHAR tc_name[NU_MAX_NAME]; /* HISR name */ DATA_ELEMENT tc_not_used_1; /* Not used field */ DATA_ELEMENT tc_not_used_2; /* Not used field */ DATA_ELEMENT tc_priority; /* HISR priority */ DATA_ELEMENT tc_not_used_3; /* Not used field */ UNSIGNED tc_scheduled; /* HISR scheduled count */ UNSIGNED tc_cur_time_slice; /* Not used in HISR */ VOID *tc_stack_start; /* Stack starting address */ VOID *tc_stack_end; /* Stack ending address */ VOID *tc_stack_pointer; /* HISR stack pointer */ UNSIGNED tc_stack_size; /* HISR stack's size */ UNSIGNED tc_stack_minimum; /* Minimum stack size */ struct TC_PROTECT_STRUCT *tc_current_protect; /* Current protection */ struct TC_HCB_STRUCT *tc_active_next; /* Next activated HISR */ /* Information after this point is not used in the target dependent portion of this component. Hence, changes in the following section should not impact assembly language routines. */ UNSIGNED tc_activation_count; /* Activation counter */ VOID (*tc_entry)(VOID); /* HISR entry function */ /* Reserved words for the system and a single reserved word for the application. */ UNSIGNED tc_system_reserved_1; /* System reserved word */ UNSIGNED tc_system_reserved_2; /* System reserved word */ UNSIGNED tc_system_reserved_3; /* System reserved word */ UNSIGNED tc_app_reserved_1; /* Application reserved */ } TC_HCB; /* Define the Task/HISR protection structure type. */ typedef struct TC_PROTECT_STRUCT { TC_TCB *tc_tcb_pointer; /* Owner of the protection */ UNSIGNED tc_thread_waiting; /* Waiting thread flag */ } TC_PROTECT; #endif