FreeCalypso > hg > fc-tourmaline
view src/g23m-aci/uart/uart_drxf.c @ 72:7bf39f5e834d
backlight control on Luna: switch PWL instead of LEDB
This change is preliminary toward upcoming rework of backlight control
logic in our UI firmware. LEDB does not exist on Tango-based platforms
(it is not brought out on Tango modules), thus turning it on and off
produces absolutely no effect beyond making L1 disable deep sleep
when LEDB is turned on. However, both iWOW DSK and our upcoming
FC Caramel2 boards have a PWL LED, so let's switch that LED on and off
to indicate the state of the UI firmware's backlight control.
Note that we are NOT switching the actual Luna LCD backlight here,
even though it is trivially controlled with a GPIO. The reason for
this seemingly strange choice is that we don't want to turn this
development board LCD backlight off until we bring the higher-level
backlight control logic up to par, including new logic to "swallow"
the first keypress that turns on the darkened LCD.
author | Mychaela Falconia <falcon@freecalypso.org> |
---|---|
date | Sat, 24 Oct 2020 07:39:54 +0000 |
parents | fa8dc04885d8 |
children |
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/* +----------------------------------------------------------------------------- | Project : | Modul : +----------------------------------------------------------------------------- | 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 UART and implements all | procedures and functions as described in the | SDL-documentation (DRX-statemachine) +----------------------------------------------------------------------------- */ #ifndef UART_DRXF_C #define UART_DRXF_C #endif /* !UART_DRXF_C */ #define ENTITY_UART /*==== INCLUDES =============================================================*/ #ifdef WIN32 #include "nucleus.h" #endif /* WIN32 */ #include "typedefs.h" /* to get Condat data types */ #include "vsi.h" /* to get a lot of macros */ #include "macdef.h" /* to get a lot of macros */ #include "custom.h" #include "gsm.h" /* to get a lot of macros */ #include "cnf_uart.h" /* to get cnf-definitions */ #include "mon_uart.h" /* to get mon-definitions */ #include "prim.h" /* to get the definitions of used SAP and directions */ #include "dti.h" /* to get dti lib */ #include "pei.h" /* to get PEI interface */ #ifdef FF_MULTI_PORT #include "gsi.h" /* to get definitions of serial driver */ #else /* FF_MULTI_PORT */ #ifdef _TARGET_ #include "uart/serialswitch.h" #include "uart/traceswitch.h" #else /* _TARGET_ */ #include "serial_dat.h" /* to get definitions of serial driver */ #endif /* _TARGET_ */ #endif /* FF_MULTI_PORT */ #include "uart.h" /* to get the global entity definitions */ /*==== CONST ================================================================*/ /*==== LOCAL VARS ===========================================================*/ /*==== PRIVATE FUNCTIONS ====================================================*/ /*==== PUBLIC FUNCTIONS =====================================================*/ /* +------------------------------------------------------------------------------ Function : drx_init +------------------------------------------------------------------------------ Description : The function drx_init() initializes the service DRX Parameters : none +------------------------------------------------------------------------------ */ GLOBAL void drx_init () { UBYTE i; TRACE_FUNCTION( "drx_init" ); for( i = 0; i < UART_MAX_NUMBER_OF_CHANNELS; i++ ) { /* * select next instance of service DRX */ uart_data->drx = &uart_data->drx_base[i]; /* * initialize service instance specific variables */ uart_data->drx->sending_state = UART_DRX_NOT_SENDING; uart_data->drx->data_flow = UART_FLOW_ENABLED; uart_data->drx->dlc_instance = i; uart_data->drx->received_data = NULL; uart_data->drx->read_pos = 0; uart_data->drx->dti_drx_state = DTI_CLOSED; INIT_STATE( UART_SERVICE_DRX , DRX_DEAD ); } } /* drx_init() */ /* +------------------------------------------------------------------------------ Function : drx_free_resources +------------------------------------------------------------------------------ Description : The function drx_free_resources() frees all resources of the service DRX Parameters : none +------------------------------------------------------------------------------ */ GLOBAL void drx_free_resources () { TRACE_FUNCTION( "drx_free_resources" ); if(uart_data->drx->received_data) { MFREE_DESC2( uart_data->drx->received_data ); } uart_data->drx->received_data = NULL; uart_data->drx->read_pos = 0; } /* drx_free_resources() */