FreeCalypso > hg > fc-tourmaline
view src/nucleus/pi_defs.h @ 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 */ /* */ /* pi_defs.h Nucleus PLUS 1.14 */ /* */ /* COMPONENT */ /* */ /* PI - Pipe Management */ /* */ /* DESCRIPTION */ /* */ /* This file contains data structure definitions and constants for */ /* the message Pipe component. */ /* */ /* DATA STRUCTURES */ /* */ /* PI_PCB Pipe control block */ /* PI_SUSPEND Pipe suspension block */ /* */ /* FUNCTIONS */ /* */ /* None */ /* */ /* DEPENDENCIES */ /* */ /* cs_defs.h Common service definitions */ /* tc_defs.h Thread Control definitions */ /* */ /* HISTORY */ /* */ /* DATE REMARKS */ /* */ /* 03-01-1993 Created initial version 1.0 */ /* 04-19-1993 Verified version 1.0 */ /* 03-01-1994 Moved include files outside of */ /* the file #ifndef to allow the */ /* use of actual data structures, */ /* removed protection structure, */ /* put padding into structure, */ /* 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 */ /*************************************************************************/ #include "cs_defs.h" /* Common service constants */ #include "tc_defs.h" /* Thread control constants */ /* Check to see if the file has been included already. */ #ifndef PI_DEFS #define PI_DEFS /* Define constants local to this component. */ #define PI_PIPE_ID 0x50495045UL /* Define the Pipe Control Block data type. */ typedef struct PI_PCB_STRUCT { CS_NODE pi_created; /* Node for linking to */ /* created pipe list */ UNSIGNED pi_id; /* Internal PCB ID */ CHAR pi_name[NU_MAX_NAME]; /* Pipe name */ BOOLEAN pi_fixed_size; /* Fixed-size messages? */ BOOLEAN pi_fifo_suspend; /* Suspension type flag */ #if PAD_2 DATA_ELEMENT pi_padding[PAD_2]; #endif UNSIGNED pi_pipe_size; /* Total size of pipe */ UNSIGNED pi_messages; /* Messages in pipe */ UNSIGNED pi_message_size; /* Size of each message */ UNSIGNED pi_available; /* Available bytes */ BYTE_PTR pi_start; /* Start of pipe area */ BYTE_PTR pi_end; /* End of pipe area + 1 */ BYTE_PTR pi_read; /* Read pointer */ BYTE_PTR pi_write; /* Write pointer */ UNSIGNED pi_tasks_waiting; /* Number of waiting tasks*/ struct PI_SUSPEND_STRUCT *pi_urgent_list; /* Urgent message suspend */ struct PI_SUSPEND_STRUCT *pi_suspension_list; /* Suspension list */ } PI_PCB; /* Define the Pipe suspension structure. This structure is allocated off of the caller's stack. */ typedef struct PI_SUSPEND_STRUCT { CS_NODE pi_suspend_link; /* Link to suspend blocks */ PI_PCB *pi_pipe; /* Pointer to the pipe */ TC_TCB *pi_suspended_task; /* Task suspended */ BYTE_PTR pi_message_area; /* Pointer to message area*/ UNSIGNED pi_message_size; /* Message size requested */ UNSIGNED pi_actual_size; /* Actual size of message */ STATUS pi_return_status; /* Return status */ } PI_SUSPEND; #endif