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view src/nucleus/smd.c @ 221:5bf097aeaad7

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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
line wrap: on
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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       */
/*                                                                       */
/*      smd.c                                          Nucleus PLUS 1.14 */
/*                                                                       */
/* COMPONENT                                                             */
/*                                                                       */
/*      SM - Semaphore Management                                        */
/*                                                                       */
/* DESCRIPTION                                                           */
/*                                                                       */
/*      This file contains global data structures for use within the     */
/*      semaphore management component.                                  */
/*                                                                       */
/* DATA STRUCTURES                                                       */
/*                                                                       */
/*      SMD_Created_Semaphores_List         Pointer to the linked-list   */
/*                                            of created semaphores      */
/*      SMD_Total_Semaphores                Total number of created      */
/*                                            semaphores                 */
/*      SMD_List_Protect                    Semaphore list protection    */
/*                                                                       */
/* FUNCTIONS                                                             */
/*                                                                       */
/*      None                                                             */
/*                                                                       */
/* DEPENDENCIES                                                          */
/*                                                                       */
/*      sm_defs.h                           Semaphore Management constant*/
/*                                                                       */
/* 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       */


/* SMD_Created_Semaphores_List is the head pointer of the linked list of
   created semaphores.  If the list is NU_NULL, there are no semaphores
   created.  */

CS_NODE        *SMD_Created_Semaphores_List;


/* SMD_Total_Semaphores contains the number of currently created
   semaphores.  */

UNSIGNED        SMD_Total_Semaphores;


/* SMD_List_Protect is a list protection structure used to block any other
   thread from access to the created semaphore list.  */

TC_PROTECT      SMD_List_Protect;