FreeCalypso > hg > fc-tourmaline
view src/nucleus/mbi.c @ 221:5bf097aeaad7
LLS: when turning off all LEDs on boot, skip LED-C
Having LLS turn off LED-A and LED-B on boot is normally unnecessary
(they should already be off in Iota), but it is harmless, hence this
logic is kept for robustness. However, having LLS read-modify-write
the BCICTL2 register (to turn off LED-C) creates a potential race
condition with FCHG writes to this register, especially in the case
when baseband switch-on is caused by VCHG and charging is expected
to start right away. Furthermore, control of the charging LED itself
(on those hw targets that have it) is the responsibility of the FCHG
SWE, hence LLS should leave it alone.
author | Mychaela Falconia <falcon@freecalypso.org> |
---|---|
date | Mon, 26 Apr 2021 21:55:13 +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 */ /* */ /* mbi.c Nucleus PLUS 1.14 */ /* */ /* COMPONENT */ /* */ /* MB - Mailbox Management */ /* */ /* DESCRIPTION */ /* */ /* This file contains the initialization routine for the mailbox */ /* management component. */ /* */ /* DATA STRUCTURES */ /* */ /* None */ /* */ /* FUNCTIONS */ /* */ /* MBI_Initialize Mailbox Management Initialize*/ /* */ /* DEPENDENCIES */ /* */ /* mb_defs.h Mailbox component constants */ /* */ /* HISTORY */ /* */ /* DATE REMARKS */ /* */ /* 03-01-1993 Created initial version 1.0 */ /* 04-19-1993 Verified version 1.0 */ /* 03-01-1994 Update file copyright informaion, */ /* 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 "mb_defs.h" /* Mailbox constants */ #include "mb_extr.h" /* Mailbox interfaces */ /* Define external inner-component global data references. */ extern CS_NODE *MBD_Created_Mailboxes_List; extern UNSIGNED MBD_Total_Mailboxes; extern TC_PROTECT MBD_List_Protect; /*************************************************************************/ /* */ /* FUNCTION */ /* */ /* MBI_Initialize */ /* */ /* DESCRIPTION */ /* */ /* This function initializes the data structures that control the */ /* operation of the Mailbox component (MB). There are no mailboxes */ /* initially. This routine must be called from Supervisor mode in */ /* Supervisor/User mode switched kernels. */ /* */ /* CALLED BY */ /* */ /* INC_Initialize System initialization */ /* */ /* CALLS */ /* */ /* None */ /* */ /* INPUTS */ /* */ /* None */ /* */ /* OUTPUTS */ /* */ /* MBD_Created_Mailboxes_List List of created mailboxes */ /* MBD_Total_Mailboxes Number of created mailboxes */ /* MBD_List_Protect Protection for mailbox list */ /* */ /* HISTORY */ /* */ /* DATE REMARKS */ /* */ /* 03-01-1993 Created initial version 1.0 */ /* 04-19-1993 Verified version 1.0 */ /* */ /*************************************************************************/ VOID MBI_Initialize(VOID) { /* Initialize the created mailbox list to NU_NULL. */ MBD_Created_Mailboxes_List = NU_NULL; /* Initialize the total number of created mailboxes to 0. */ MBD_Total_Mailboxes = 0; /* Initialize the list protection structure. */ MBD_List_Protect.tc_tcb_pointer = NU_NULL; }