FreeCalypso > hg > fc-selenite
view src/nucleus/tci.c @ 152:d3668a47b969
targets/fcdev3b.conf: no more disabling sleep, hw is fixed!
author | Mychaela Falconia <falcon@freecalypso.org> |
---|---|
date | Thu, 07 Feb 2019 00:11:43 +0000 |
parents | 0f80e1e4dce4 |
children |
line wrap: on
line source
/*************************************************************************/ /* */ /* Copyright Mentor Graphics Corporation 2002 */ /* All Rights Reserved. */ /* */ /* THIS WORK CONTAINS TRADE SECRET AND PROPRIETARY INFORMATION WHICH IS */ /* THE PROPERTY OF MENTOR GRAPHICS CORPORATION OR ITS LICENSORS AND IS */ /* SUBJECT TO LICENSE TERMS. */ /* */ /*************************************************************************/ /*************************************************************************/ /* */ /* FILE NAME VERSION */ /* */ /* tci.c Nucleus PLUS 1.14 */ /* */ /* COMPONENT */ /* */ /* TC - Thread Control */ /* */ /* DESCRIPTION */ /* */ /* This file contains the initialization routine for this */ /* component. */ /* */ /* DATA STRUCTURES */ /* */ /* None */ /* */ /* FUNCTIONS */ /* */ /* TCI_Initialize Thread Control Initialization*/ /* */ /* DEPENDENCIES */ /* */ /* tc_defs.h Thread Control constants */ /* */ /* HISTORY */ /* */ /* DATE REMARKS */ /* */ /* 03-01-1993 Created initial version 1.0 */ /* 04-19-1993 Verified version 1.0 */ /* 08-09-1993 Corrected problem initializing */ /* the LISR association table, */ /* resulting in version 1.0a */ /* 08-09-1993 Verified version 1.0a */ /* 03-01-1994 Changed to initialize the system */ /* protection rather than the */ /* schedule protection, resulting */ /* in version 1.1 */ /* */ /* 03-18-1994 Verified version 1.1 */ /* 04-17-1996 updated to version 1.2 */ /* 03-24-1998 Released version 1.3 */ /* 03-26-1999 Released 1.11m (new release */ /* numbering scheme) */ /* 04-17-2002 Released version 1.13m */ /* 11-07-2002 Released version 1.14 */ /*************************************************************************/ #define NU_SOURCE_FILE #include "cs_defs.h" /* Common Service constants */ #include "tc_defs.h" /* Thread Control constants */ #include "tc_extr.h" /* Thread Control interfaces */ /* Define external inner-component global data references. */ extern CS_NODE *TCD_Created_Tasks_List; extern UNSIGNED TCD_Total_Tasks; extern TC_TCB *TCD_Priority_List[TC_PRIORITIES]; extern UNSIGNED TCD_Priority_Groups; extern DATA_ELEMENT TCD_Sub_Priority_Groups[TC_MAX_GROUPS]; extern INT TCD_Highest_Priority; extern TC_TCB *TCD_Execute_Task; extern VOID *TCD_Current_Thread; extern UNSIGNED_CHAR TCD_Registered_LISRs[NU_MAX_VECTORS+1]; extern VOID (*TCD_LISR_Pointers[NU_MAX_LISRS+1])(INT vector); extern INT TCD_Interrupt_Count; extern INT TCD_Stack_Switched; extern TC_PROTECT TCD_List_Protect; extern TC_PROTECT TCD_System_Protect; extern TC_PROTECT TCD_LISR_Protect; extern CS_NODE *TCD_Created_HISRs_List; extern UNSIGNED TCD_Total_HISRs; extern TC_HCB *TCD_Active_HISR_Heads[TC_HISR_PRIORITIES]; extern TC_HCB *TCD_Active_HISR_Tails[TC_HISR_PRIORITIES]; extern TC_HCB *TCD_Execute_HISR; extern TC_PROTECT TCD_HISR_Protect; extern INT TCD_Interrupt_Level; /*************************************************************************/ /* */ /* FUNCTION */ /* */ /* TCI_Initialize */ /* */ /* DESCRIPTION */ /* */ /* This function initializes the data structures that control the */ /* operation of the TC component. The system is initialized as */ /* idle. This routine must be executed from Supervisor mode in */ /* Supervisor/User mode switching kernels. */ /* */ /* CALLED BY */ /* */ /* INC_Initialize System initialization */ /* */ /* CALLS */ /* */ /* None */ /* */ /* INPUTS */ /* */ /* None */ /* */ /* OUTPUTS */ /* */ /* TCD_Created_Tasks_List List of created tasks */ /* TCD_Total_Tasks Number of created tasks */ /* TCD_Priority_List Ready task array */ /* TCD_Priority_Groups Ready priority group bit map */ /* TCD_Sub_Priority_Groups Sub-priority groups bit map */ /* TCD_Highest_Priority Highest priority task */ /* TCD_Execute_Task Top priority task to execute */ /* TCD_Created_HISRs_List List of created HISRs */ /* TCD_Total_HISRs Number of created HISRs */ /* TCD_Active_HISR_Heads Active HISR list head ptrs */ /* TCD_Active_HISR_Tails Active HISR list tail ptrs */ /* TCD_Execute_HISR Top priority HISR to execute */ /* TCD_Current_Thread Current thread pointer */ /* TCD_Registered_LISRs Registered LISRs list */ /* TCD_LISR_Pointers Pointers to active LISRs */ /* TCD_Interrupt_Count Interrupt in progress counter*/ /* TCD_Stack_Switched Interrupt stack switched flag*/ /* TCD_List_Protect Protection of task list */ /* TCD_Schedule_Protect Protection of scheduling */ /* data structures. */ /* TCD_HISR_Protect Protection of created HISR */ /* list */ /* TCD_Interrupt_Level Enable interrupt level */ /* */ /* HISTORY */ /* */ /* DATE REMARKS */ /* */ /* 03-01-1993 Created initial version 1.0 */ /* 04-19-1993 Verified version 1.0 */ /* 08-09-1993 Corrected problem initializing */ /* the LISR association table, */ /* resulting in version 1.0a */ /* 08-09-1993 Verified version 1.0a */ /* 03-01-1994 Changed to initialize the system */ /* protection rather than the */ /* schedule protection, resulting */ /* in version 1.1 */ /* */ /* 03-18-1994 Verified version 1.1 */ /* */ /*************************************************************************/ VOID TCI_Initialize(VOID) { int i; /* Working index variable */ /* Initialize the created task list to NU_NULL. */ TCD_Created_Tasks_List = NU_NULL; /* Initialize the total number of created tasks to 0. */ TCD_Total_Tasks = 0; /* Initialize the array of ready task lists. */ for (i = 0; i < TC_PRIORITIES; i++) TCD_Priority_List[i] = 0; /* Initialize the bit maps that represent that at least one task is ready at the same priority level. */ TCD_Priority_Groups = 0; for (i = 0; i < TC_MAX_GROUPS; i++) TCD_Sub_Priority_Groups[i] = 0; /* Initialize the highest priority flag. */ TCD_Highest_Priority = TC_PRIORITIES; /* Initialize pointers to the task to execute, HISR to execute, and current thread of execution. */ TCD_Execute_Task = NU_NULL; TCD_Execute_HISR = NU_NULL; TCD_Current_Thread = NU_NULL; /* Initialize the created HISRs list to NU_NULL. */ TCD_Created_HISRs_List = NU_NULL; /* Initialize the total number of created HISRs to 0. */ TCD_Total_HISRs = 0; /* Initialize the array of ready HISR list pointers. */ for (i = 0; i < TC_HISR_PRIORITIES; i++) { TCD_Active_HISR_Heads[i] = NU_NULL; TCD_Active_HISR_Tails[i] = NU_NULL; } /* Initialize the LISR interrupt control data structures. */ for (i = 0; i <= NU_MAX_VECTORS; i++) TCD_Registered_LISRs[i] = NU_FALSE; for (i = 0; i <= NU_MAX_LISRS; i++) TCD_LISR_Pointers[i] = NU_NULL; /* Initialize the interrupt processing variables. */ TCD_Interrupt_Count = 0; TCD_Stack_Switched = 0; /* Initialize the task control protection structures. */ TCD_List_Protect.tc_tcb_pointer = NU_NULL; TCD_System_Protect.tc_tcb_pointer = NU_NULL; TCD_LISR_Protect.tc_tcb_pointer = NU_NULL; TCD_HISR_Protect.tc_tcb_pointer = NU_NULL; /* Initialize the interrupt level to enable all interrupts. */ TCD_Interrupt_Level = NU_ENABLE_INTERRUPTS; }