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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 35f7a1dc9f7d
children
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;********************************************************************************
;*** File           : udp.pdf
;*** Creation       : Wed Mar 11 09:58:55 CST 2009
;*** XSLT Processor : Apache Software Foundation / http://xml.apache.org/xalan-j / supports XSLT-Ver: 1
;*** Copyright      : (c) Texas Instruments AG, Berlin Germany 2002
;********************************************************************************
;*** Document Type  : Service Access Point Specification
;*** Document Name  : udp
;*** Document No.   : 8444.100.00.006
;*** Document Date  : 2003-08-26
;*** Document Status: BEING_PROCESSED
;*** Document Author: JK
;********************************************************************************



PRAGMA 	SRC_FILE_TIME 	"Thu Nov 29 09:56:22 2007"
PRAGMA 	LAST_MODIFIED 	"2003-08-26"
PRAGMA 	ID_AND_VERSION 	"8444.100.00.006"






VALTAB 	VAL_port
VAL 	0 	UDP_AUTOASSIGN_PORT 	"UDP must assign a free port number"

VALTAB 	VAL_err
VAL 	0 	UDP_BIND_NOERROR 	"no error"
VAL 	1 	UDP_BIND_PORTINUSE 	"port already in use"
VAL 	2 	UDP_BIND_UDPDOWN 	"udp is deactivated"




VAR 	port 	"destination port" 	S

VAL 	@p_udp - VAL_port@ 	

VAR 	err 	"error code" 	B

VAL 	@p_udp - VAL_err@ 	

VAR 	dst_port 	"destination port" 	S


VAR 	src_port 	"source port" 	S


VAR 	err_msg 	"error message" 	B


VAR 	src_addr 	"source address" 	L


VAR 	dst_addr 	"destination address" 	L








; UDP_BIND_REQ 	0x80000046
; UDP_BIND_CNF 	0x80004046
; UDP_CLOSEPORT_REQ 	0x80010046
; UDP_CLOSEPORT_CNF 	0x80014046
; UDP_ERROR_IND 	0x80024046
; UDP_ERROR_RES 	0x80020046
; UDP_SHUTDOWN_IND 	0x80034046
; UDP_SHUTDOWN_RES 	0x80030046



PRIM 	UDP_BIND_REQ 	0x80000046
{
 	port 	 ; port
}






PRIM 	UDP_BIND_CNF 	0x80004046
{
 	port 	 ; port
 	err 	 ; error code
}






PRIM 	UDP_CLOSEPORT_REQ 	0x80010046
{
 	port 	 ; port
}






PRIM 	UDP_CLOSEPORT_CNF 	0x80014046
{
}






PRIM 	UDP_ERROR_IND 	0x80024046
{
 	dst_port 	 ; Destination port
 	src_port 	 ; source port
 	err_msg 	 ; error message
 	src_addr 	 ; source address
 	dst_addr 	 ; Destination address
}






PRIM 	UDP_ERROR_RES 	0x80020046
{
}






PRIM 	UDP_SHUTDOWN_IND 	0x80034046
{
}






PRIM 	UDP_SHUTDOWN_RES 	0x80030046
{
}