FreeCalypso > hg > fc-tourmaline
view src/nucleus/smi.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 */ /* */ /* smi.c Nucleus PLUS 1.14 */ /* */ /* COMPONENT */ /* */ /* SM - Semaphore Management */ /* */ /* DESCRIPTION */ /* */ /* This file contains the initialization routine for the semaphore */ /* management component. */ /* */ /* DATA STRUCTURES */ /* */ /* None */ /* */ /* FUNCTIONS */ /* */ /* SMI_Initialize Semaphore Management Init. */ /* */ /* DEPENDENCIES */ /* */ /* sm_defs.h Semaphore component constants*/ /* */ /* HISTORY */ /* */ /* DATE REMARKS */ /* */ /* 03-01-1993 Created initial version 1.0 */ /* 04-19-1993 Verified version 1.0 */ /* 03-01-1994 Modified copyright, 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 "sm_defs.h" /* Semaphore constants */ #include "sm_extr.h" /* Semaphore interfaces */ /* Define external inner-component global data references. */ extern CS_NODE *SMD_Created_Semaphores_List; extern UNSIGNED SMD_Total_Semaphores; extern TC_PROTECT SMD_List_Protect; /*************************************************************************/ /* */ /* FUNCTION */ /* */ /* SMI_Initialize */ /* */ /* DESCRIPTION */ /* */ /* This function initializes the data structures that control the */ /* operation of the Semaphore component (SM). There are no */ /* semaphores initially. This routine must be called from */ /* Supervisor mode in Supervisor/User mode switching kernels. */ /* */ /* CALLED BY */ /* */ /* INC_Initialize System initialization */ /* */ /* CALLS */ /* */ /* None */ /* */ /* INPUTS */ /* */ /* None */ /* */ /* OUTPUTS */ /* */ /* SMD_Created_Semaphores_List List of created semaphores */ /* SMD_Total_Semaphores Number of created semaphores */ /* SMD_List_Protect Protection for semaphore list*/ /* */ /* HISTORY */ /* */ /* DATE REMARKS */ /* */ /* 03-01-1993 Created initial version 1.0 */ /* 04-19-1993 Verified version 1.0 */ /* */ /*************************************************************************/ VOID SMI_Initialize(VOID) { /* Initialize the created semaphore list to NU_NULL. */ SMD_Created_Semaphores_List = NU_NULL; /* Initialize the total number of created semaphores to 0. */ SMD_Total_Semaphores = 0; /* Initialize the list protection structure. */ SMD_List_Protect.tc_tcb_pointer = NU_NULL; }