FreeCalypso > hg > fc-tourmaline
view src/g23m-aci/gdd_dio/gdd_dio_kerf.c @ 75:8697f358f505
backlight rework: Condat light driver accepts levels
The present change is another intermediate step on the path toward
new FreeCalypso backlight handling. At this intermediate step the
Condat light driver accepts 0-255 backlight levels driven by MFW,
and puts them out on PWL on Luna development boards. At the same
time on C139 it is now possible to turn on the display backlight
with or without the keypad bl - the lsb of the 0-255 backlight level
controls the keypad bl.
MFW presently drives only 0 and 255 backlight levels, thus there is
no visible behavioral change yet - but the plan for subsequent stages
of this backlight rework is to add a dimmed backlight state
(no keypad bl on C139) during active calls.
author | Mychaela Falconia <falcon@freecalypso.org> |
---|---|
date | Sat, 24 Oct 2020 20:44:04 +0000 |
parents | fa8dc04885d8 |
children |
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/* +----------------------------------------------------------------------------- | File : gdd_dio_kerf.c +----------------------------------------------------------------------------- | Copyright 2002 Texas Instruments Berlin, AG | All rights reserved. | | This file is confidential and a trade secret of Texas | Instruments Berlin, AG | The receipt of or possession of this file does not convey | any rights to reproduce or disclose its contents or to | manufacture, use, or sell anything it may describe, in | whole, or in part, without the specific written consent of | Texas Instruments Berlin, AG. +----------------------------------------------------------------------------- | Purpose : This modul is part of the entity gdd_dio and implements the | kernel service functions. +----------------------------------------------------------------------------- */ #define ENTITY_GDD_DIO /*==== INCLUDES =============================================================*/ #include "typedefs.h" /* to get Condat data types */ #include "vsi.h" /* to get a lot of macros */ #include "prim.h" /* to get the definitions of used SAP and directions */ #include "dti.h" #include "gdd_dio.h" /* to get the global entity definitions */ /*==== CONST ================================================================*/ /*==== LOCAL VARS ===========================================================*/ /*==== PRIVATE FUNCTIONS ====================================================*/ /*==== PUBLIC FUNCTIONS =====================================================*/ /* +------------------------------------------------------------------------------ | Function : ker_init +------------------------------------------------------------------------------ | Description : The function ker_init() initializes the state of the | kernel service. The state of DIO is initialized independently | when dio_init_bat() is called. +------------------------------------------------------------------------------ */ GLOBAL int gdd_dio_ker_init () { TRACE_FUNCTION( "ker_init" ); /* Nothing to do currently. The state of each kernel (gdd_dio_data_base[<instance>].ker.state is static and automatically set to GDD_DIO_KER_DEAD on start-up. */ return 1; } /* ker_init() */