view cdg-hybrid/sap/ph.pdf @ 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 35f7a1dc9f7d
children
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;********************************************************************************
;*** File           : ph.pdf
;*** Creation       : Wed Mar 11 09:58:34 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  : ph
;*** Document No.   : 6147.112.01.100
;*** Document Date  : 2001-10-26
;*** Document Status: APPROVED
;*** Document Author: SBK
;********************************************************************************



PRAGMA 	SRC_FILE_TIME 	"Thu Nov 29 09:50:28 2007"
PRAGMA 	LAST_MODIFIED 	"2001-10-26"
PRAGMA 	ID_AND_VERSION 	"6147.112.01.100"



CONST 	DUMMY_PH 	0 	; Dummy, not used, needed to satisfy tool chain which requires at least one constant definition in a SAP



VALTAB 	VAL_ch_type
VAL 	0 	CH_TYPE_SACCH 	"SACCH"
VAL 	1 	CH_TYPE_SDCCH 	"SDCCH"
VAL 	2 	CH_TYPE_FACCH 	"FACCH Full Rate"
VAL 	3 	 	"reserved"
VAL 	4 	 	"reserved"
VAL 	5 	 	"reserved"
VAL 	6 	 	"reserved"
VAL 	7 	CH_TYPE_FACCH_HR 	"FACCH Half Rate"




VAR 	l2_channel 	"Layer 2 channel-type" 	B

VAL 	@p_mphc - VAL_l2_channel@ 	

VAR 	l_buf 	"length of content in bit" 	S


VAR 	o_buf 	"offset of content in bit" 	S


VAR 	buf 	"buffer content; the actual size of buf is determined and allocated at run-time and not restricted to 1;" 	B


VAR 	dummy 	"dummy not used" 	B





COMP 	sdu 	 "message unit"
{
 	l_buf 	 ; length of content in bit
 	o_buf 	 ; offset of content in bit
 	buf 	[1] 	 ; buffer content; the actual size of buf is determined and allocated at run-time and not restricted to 1;
}






; PH_READY_TO_SEND 	0x4100
; PH_DATA_REQ 	0x0100
; PH_TRACE_IND 	0x4102



PRIM 	PH_READY_TO_SEND 	0x4100
{
 	l2_channel AS ch_type 	 ; channel type
}






PRIM 	PH_DATA_REQ 	0x0100
{
 	l2_channel AS ch_type 	 ; channel type
 	dummy 	 ; dummy not used; reserved
 	sdu 	 ; message unit
}






PRIM 	PH_TRACE_IND 	0x4102
{
 	dummy 	 ; dummy not used; not used
}