FreeCalypso > hg > fc-tourmaline
view src/nucleus/tmf.c @ 223:740a8e8fc9d7
startup sync logic rework for the new PWON button boot scheme
Previously we added logic to the MMI task to hold off PEI init until
R2D is running, and then extended that condition to wait for FCHG
init too. However, the dependencies of MMI upon R2D and FCHG don't
start until mmiInit(), and that call is driven by Switch_ON() code,
hence the wait for R2D and FCHG init can be made in that code path
instead of the MMI task. Furthermore, with our new way of signaling
PWON button boot to MMI, we need a new wait to ensure that the MMI
task is up - previously this assurance was provided by the wait for
Kp pointers to be set.
Solution: revert our previous PEI init hold-off additions to MMI,
add a new flag indicating MMI task init done, and put the combined
wait for all needed conditions into our new PWON button boot code
in power.c.
| author | Mychaela Falconia <falcon@freecalypso.org> |
|---|---|
| date | Tue, 27 Apr 2021 06:24:52 +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 */ /* */ /* tmf.c Nucleus PLUS 1.14 */ /* */ /* COMPONENT */ /* */ /* TM - Timer Management */ /* */ /* DESCRIPTION */ /* */ /* This file contains information (fact) routines for the Timer */ /* Management component. */ /* */ /* DATA STRUCTURES */ /* */ /* None */ /* */ /* FUNCTIONS */ /* */ /* TMF_Established_Timers Number of established timers */ /* TMF_Timer_Pointers Return list of application */ /* timer pointers */ /* TMF_Timer_Information Return information about the */ /* application timer */ /* */ /* TMF_Get_Remaining_Time Return remaining timer until */ /* a timer expires */ /* */ /* DEPENDENCIES */ /* */ /* cs_extr.h Common Service functions */ /* tc_extr.h Thread Control functions */ /* tm_extr.h Timer functions */ /* hi_extr.h History functions */ /* */ /* HISTORY */ /* */ /* DATE REMARKS */ /* */ /* 03-01-1994 Created initial version 1.1 from */ /* previous version of TMC.C */ /* */ /* 03-18-1994 Verified version 1.1 */ /* 04-17-1996 updated to version 1.2 */ /* 11-18-1996 Protected Informational service */ /* from NULL Control Block pointers */ /* creating 1.2a. (SPR220) */ /* 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_extr.h" /* Common service functions */ #include "tc_extr.h" /* Thread control functions */ #include "tm_extr.h" /* Timer functions */ #include "hi_extr.h" /* History functions */ /* Define external inner-component global data references. */ extern CS_NODE *TMD_Created_Timers_List; extern UNSIGNED TMD_Total_Timers; extern TM_TCB *TMD_Active_Timers_List; extern INT TMD_Active_List_Busy; extern TC_PROTECT TMD_Created_List_Protect; /*************************************************************************/ /* */ /* FUNCTION */ /* */ /* TMF_Established_Timers */ /* */ /* DESCRIPTION */ /* */ /* This function returns the current number of established */ /* timers. Timers previously deleted are no longer considered */ /* established. */ /* */ /* CALLED BY */ /* */ /* Application */ /* */ /* CALLS */ /* */ /* [TCT_Check_Stack] Stack checking function */ /* */ /* INPUTS */ /* */ /* None */ /* */ /* OUTPUTS */ /* */ /* TMD_Total_Timers Number of established */ /* timers */ /* */ /* HISTORY */ /* */ /* DATE REMARKS */ /* */ /* 03-01-1993 Created initial version 1.0 */ /* 04-19-1993 Verified version 1.0 */ /* 03-01-1994 Changed function interface, */ /* resulting in version 1.1 */ /* */ /* 03-18-1994 Verified version 1.1 */ /* */ /*************************************************************************/ UNSIGNED TMF_Established_Timers(VOID) { #ifdef NU_ENABLE_STACK_CHECK /* Call stack checking function to check for an overflow condition. */ TCT_Check_Stack(); #endif /* Return the number of established timers. */ return(TMD_Total_Timers); } /*************************************************************************/ /* */ /* FUNCTION */ /* */ /* TMF_Timer_Pointers */ /* */ /* DESCRIPTION */ /* */ /* This function builds a list of timer pointers, starting at the */ /* specified location. The number of timer pointers placed in */ /* the list is equivalent to the total number of timers or the */ /* maximum number of pointers specified in the call. */ /* */ /* CALLED BY */ /* */ /* Application */ /* */ /* CALLS */ /* */ /* [TCT_Check_Stack] Stack checking function */ /* TCT_Protect Protect created list */ /* TCT_Unprotect Release protection */ /* */ /* INPUTS */ /* */ /* pointer_list Pointer to the list area */ /* maximum_pointers Maximum number of pointers */ /* */ /* OUTPUTS */ /* */ /* pointers Number of timers placed */ /* in the list */ /* HISTORY */ /* */ /* DATE REMARKS */ /* */ /* 03-01-1993 Created initial version 1.0 */ /* 04-19-1993 Verified version 1.0 */ /* 08-09-1993 Corrected problem in pointer */ /* retrieval loop, resulting in */ /* version 1.0a */ /* 08-09-1993 Verified version 1.0a */ /* 03-01-1994 Changed function interface, */ /* resulting in version 1.1 */ /* */ /* 03-18-1994 Verified version 1.1 */ /* */ /*************************************************************************/ UNSIGNED TMF_Timer_Pointers(NU_TIMER **pointer_list, UNSIGNED maximum_pointers) { CS_NODE *node_ptr; /* Pointer to each TCB */ UNSIGNED pointers; /* Number of pointers in list*/ NU_SUPERV_USER_VARIABLES /* Switch to supervisor mode */ NU_SUPERVISOR_MODE(); #ifdef NU_ENABLE_STACK_CHECK /* Call stack checking function to check for an overflow condition. */ TCT_Check_Stack(); #endif /* Initialize the number of pointers returned. */ pointers = 0; /* Protect against access to the list of created timers. */ TCT_Protect(&TMD_Created_List_Protect); /* Loop until all timer pointers are in the list or until the maximum list size is reached. */ node_ptr = TMD_Created_Timers_List; while ((node_ptr) && (pointers < maximum_pointers)) { /* Place the node into the destination list. */ *pointer_list++ = (NU_TIMER *) node_ptr; /* Increment the pointers variable. */ pointers++; /* Position the node pointer to the next node. */ node_ptr = node_ptr -> cs_next; /* Determine if the pointer is at the head of the list. */ if (node_ptr == TMD_Created_Timers_List) /* The list search is complete. */ node_ptr = NU_NULL; } /* Release protection against access to the list of created timers. */ TCT_Unprotect(); /* Return to user mode */ NU_USER_MODE(); /* Return the number of pointers in the list. */ return(pointers); } /*************************************************************************/ /* */ /* FUNCTION */ /* */ /* TMF_Timer_Information */ /* */ /* DESCRIPTION */ /* */ /* This function returns information about the specified timer. */ /* However, if the supplied timer pointer is invalid, the */ /* function simply returns an error status. */ /* */ /* CALLED BY */ /* */ /* Application */ /* */ /* CALLS */ /* */ /* [TCT_Check_Stack] Stack checking function */ /* TCT_System_Protect Protect active timer */ /* TCT_Unprotect Release protection */ /* */ /* INPUTS */ /* */ /* timer_ptr Pointer to the timer */ /* name Destination for the name */ /* enable Destination for the enable */ /* posture */ /* expirations Destination for the total */ /* number of expirations */ /* id Destination for the timer id */ /* initial_time Destination for the initial */ /* time */ /* reschedule_time Destination for the */ /* reschedule time */ /* */ /* OUTPUTS */ /* */ /* NU_SUCCESS If a valid timer pointer */ /* is supplied */ /* NU_INVALID_TIMER If timer pointer invalid */ /* */ /* HISTORY */ /* */ /* DATE REMARKS */ /* */ /* 03-01-1993 Created initial version 1.0 */ /* 04-19-1993 Verified version 1.0 */ /* 08-09-1993 Corrected problem that caused an */ /* invalid application timer ID */ /* to be returned to the caller, */ /* resulting in version 1.0a */ /* 08-09-1993 Verified version 1.0a */ /* 03-01-1994 Changed function interface, */ /* resulting in version 1.1 */ /* */ /* 03-18-1994 Verified version 1.1 */ /* 11-18-1996 Corrected SPR220. */ /* */ /*************************************************************************/ STATUS TMF_Timer_Information(NU_TIMER *timer_ptr, CHAR *name, OPTION *enable, UNSIGNED *expirations, UNSIGNED *id, UNSIGNED *initial_time, UNSIGNED *reschedule_time) { TM_APP_TCB *timer; /* Timer control block ptr */ INT i; /* Working integer variable */ STATUS completion; /* Completion status */ NU_SUPERV_USER_VARIABLES /* Switch to supervisor mode */ NU_SUPERVISOR_MODE(); /* Move input timer pointer into internal pointer. */ timer = (TM_APP_TCB *) timer_ptr; #ifdef NU_ENABLE_STACK_CHECK /* Call stack checking function to check for an overflow condition. */ TCT_Check_Stack(); #endif /* Protect the active list. */ TCT_System_Protect(); /* Determine if this timer ID is valid. */ if ((timer != NU_NULL) && (timer -> tm_id == TM_TIMER_ID)) { /* The timer pointer is valid. Reflect this in the completion status and fill in the actual information. */ completion = NU_SUCCESS; /* Copy the timer's name. */ for (i = 0; i < NU_MAX_NAME; i++) *name++ = timer -> tm_name[i]; /* Determine if the timer is enabled or disabled. */ if (timer -> tm_enabled) *enable = NU_ENABLE_TIMER; else *enable = NU_DISABLE_TIMER; /* Fill in the remaining information. */ *expirations = timer -> tm_expirations; *id = timer -> tm_expiration_id; *initial_time = timer -> tm_initial_time; *reschedule_time = timer -> tm_reschedule_time; } else /* Indicate that the timer pointer is invalid. */ completion = NU_INVALID_TIMER; /* Release protection. */ TCT_Unprotect(); /* Return to user mode */ NU_USER_MODE(); /* Return the appropriate completion status. */ return(completion); } /*************************************************************************/ /* */ /* FUNCTION */ /* */ /* TMF_Get_Remaining_Time */ /* */ /* DESCRIPTION */ /* */ /* This function returns the remaining time before expiration for */ /* the specified timer. */ /* */ /* */ /* CALLED BY */ /* */ /* Application */ /* */ /* CALLS */ /* */ /* TCT_System_Protect Protect active timer */ /* TCT_Unprotect Release protection */ /* */ /* INPUTS */ /* */ /* timer_ptr Pointer to the timer */ /* */ /* OUTPUTS */ /* */ /* remaining_time time until timer expiration */ /* */ /* NU_INVALID_TIMER If timer pointer invalid */ /* */ /* HISTORY */ /* */ /* DATE REMARKS */ /* */ /* 07-02-1998 Created service call */ /* */ /*************************************************************************/ STATUS TMF_Get_Remaining_Time(NU_TIMER *timer_ptr, UNSIGNED *remaining_time) { R1 TM_APP_TCB *timer; TM_TCB *real_TCB; TM_TCB *list_ptr; INT done = 0; STATUS status; NU_SUPERV_USER_VARIABLES /* Switch to supervisor mode */ NU_SUPERVISOR_MODE(); /* Protect against simultaneous access to the active timers list*/ TCT_System_Protect(); list_ptr = TMD_Active_Timers_List; /* Get the application timer Control Block */ timer = (TM_APP_TCB*) timer_ptr; /* Determine if this timer ID is valid. */ if ((timer != NU_NULL) && (timer -> tm_id == TM_TIMER_ID)) { /* The timer pointer is valid. Reflect this in the completion status and fill in the actual information. */ status = NU_SUCCESS; /* Get the actual timer Control block */ real_TCB = &(timer->tm_actual_timer); if (list_ptr == real_TCB) *remaining_time = list_ptr -> tm_remaining_time; else { if( list_ptr == NU_NULL) /* in case no active timers exist */ *remaining_time = 0; else { *remaining_time = list_ptr -> tm_remaining_time; do { /* Move the list pointer to the next timer in the list. */ list_ptr = list_ptr -> tm_next_timer; *remaining_time += list_ptr -> tm_remaining_time; /* Check to see if we have gotten to the specified timer yet */ if (list_ptr == real_TCB) /* Searching is done. */ done = NU_TRUE; }while (!done); } } } else /* Indicate that the timer pointer is invalid. */ status = NU_INVALID_TIMER; TCT_Unprotect(); /* Return to user mode */ NU_USER_MODE(); return (status); }