FreeCalypso > hg > fc-tourmaline
view src/g23m-aci/gdd_dio/gdd_dio_txf.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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/* +----------------------------------------------------------------------------- | File : gdd_dio_txf.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 | tx service functions. +----------------------------------------------------------------------------- */ #define ENTITY_GDD_DIO /*==== INCLUDES =============================================================*/ #include "typedefs.h" /* to get Condat data types */ #include "vsi.h" /* to get a lot of macros */ /* DIO stuff */ #include "dio.h" #include "dio_il/dio_drv.h" /* GDD_DIO stuff */ /* We must define P_DIO_H, in order to avoid inclusion of p_dio.h. This is necessary due to the special fact, that "dio.h", which is included in the header "dio_io/dio_drv.h", mirrors the header "p_dio.h". */ #define P_DIO_H #include "gdd_dio.h" /* to get the global entity definitions */ #include "gdd_dio_con_mgr.h" #include "gdd_dio_queue.h" #include "gdd_dio_txf.h" #include "gdd_dio_drxf.h" /*==== CONST ================================================================*/ /*==== LOCAL VARS ===========================================================*/ /*==== PRIVATE FUNCTIONS ====================================================*/ /*==== PUBLIC FUNCTIONS =====================================================*/ GLOBAL void gdd_dio_tx_receive_buf(T_GDD_CON_HANDLE con_handle, T_dio_buffer * buf) { #ifdef GDD_MAKE_DTX_CONTEXT_SWITCH U32 signal = GDD_DIO_SIGNAL_RECEIVE_DATA | (U32)con_handle; #else /* GDD_MAKE_DTX_CONTEXT_SWITCH */ U32 signal = con_handle; #endif /* GDD_MAKE_DTX_CONTEXT_SWITCH */ TRACE_FUNCTION("[GDD] gdd_dio_tx_receive_buf()"); #ifdef MEMORY_SUPERVISION vsi_c_ssend(hCommGDD_DIO, signal, (T_VOID_STRUCT*)buf, sizeof(T_VOID_STRUCT*), __FILE__, __LINE__); #else vsi_c_ssend(hCommGDD_DIO, signal, (T_VOID_STRUCT*)buf, sizeof(T_VOID_STRUCT*)); #endif }