FreeCalypso > hg > fc-tourmaline
view src/nucleus/smd.c @ 51:04aaa5622fa7
disable deep sleep when Iota LEDB is on
TI's Iota chip docs say that CLK13M must be running in order for
LEDB to work, and practical experience on Mot C139 which uses
Iota LEDB for its keypad backlight concurs: if Calypso enters
deep sleep while the keypad backlight is turned on, the light
flickers visibly as the chipset goes into and out of deep sleep.
TI's original L1 sleep manager code had logic to disable deep sleep
when LT_Status() returns nonzero, but that function only works
for B-Sample and C-Sample LT, always returns 0 on BOARD 41 - no
check of Iota LEDB status anywhere. Change this code for our
current hardware: disable deep sleep when Iota LEDB has been
turned on through LLS.
author | Mychaela Falconia <falcon@freecalypso.org> |
---|---|
date | Mon, 19 Oct 2020 05:11:29 +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 */ /* */ /* 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;