FreeCalypso > hg > fc-tourmaline
view src/nucleus/tci.c @ 281:a75eefbf8be4
Phone boot with PWON: weed out short button presses
Every standard end user phone has a design provision, most naturally
implemented in firmware, whereby the PWON button effects a boot only
if it is held down long enough - short presses of this PWON button
are detected, assumed to be spurious and cause the fw to power back off
instead of proceeding with boot. The present change introduces this
standard function in FreeCalypso.
| author | Mychaela Falconia <falcon@freecalypso.org> |
|---|---|
| date | Fri, 24 Sep 2021 02:03:08 +0000 |
| parents | 4e78acac3d88 |
| children |
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/*************************************************************************/ /* */ /* 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; }