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annotate cdg-hybrid/sap/cci.pdf @ 72:7bf39f5e834d

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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
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1 ;********************************************************************************
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2 ;*** File : cci.pdf
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3 ;*** Creation : Wed Mar 11 09:57:44 CST 2009
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4 ;*** XSLT Processor : Apache Software Foundation / http://xml.apache.org/xalan-j / supports XSLT-Ver: 1
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5 ;*** Copyright : (c) Texas Instruments AG, Berlin Germany 2002
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6 ;********************************************************************************
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7 ;*** Document Type : Service Access Point Specification
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8 ;*** Document Name : cci
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9 ;*** Document No. : 8441.118.00.017
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10 ;*** Document Date : 2003-01-13
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11 ;*** Document Status: BEING_PROCESSED
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12 ;*** Document Author: UT
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13 ;********************************************************************************
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17 PRAGMA SRC_FILE_TIME "Thu Nov 29 09:37:42 2007"
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18 PRAGMA LAST_MODIFIED "2003-01-13"
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19 PRAGMA ID_AND_VERSION "8441.118.00.017"
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26 VALTAB VAL_algo_type
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27 VAL 0 CCI_ALGO_V42 "V42bis algorithm"
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29 VALTAB VAL_comp_inst
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30 VAL 0 CCI_COMP_INST_V42_0 "first instance for V42bis"
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35 VAR algo_type "algorithm type" B
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37 VAL @p_cci - VAL_algo_type@
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39 VAR comp_inst "compressor instance" B
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41 VAL @p_cci - VAL_comp_inst@
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49 ; CCI_INIT_REQ 0x3604
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53 PRIM CCI_INIT_REQ 0x3604
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54 {
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55 algo_type ; algorithm type
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56 comp_inst ; compressor instance
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57 }
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