annotate src/gpf/inc/tok.h @ 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 4e78acac3d88
children
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1 /*
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2 +------------------------------------------------------------------------------
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3 | File: tok.h
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4 +------------------------------------------------------------------------------
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5 | Copyright 2002 Texas Instruments Berlin, AG
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6 | All rights reserved.
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7 |
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8 | This file is confidential and a trade secret of Texas
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9 | Instruments Berlin, AG.
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10 | The receipt of or possession of this file does not convey
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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11 | any rights to reproduce or disclose its contents or to
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12 | manufacture, use, or sell anything it may describe, in
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13 | whole, or in part, without the specific written consent of
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14 | Texas Instruments Berlin, AG.
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15 +------------------------------------------------------------------------------
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16 | Purpose: Definitions for the configuration string functions.
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17 +------------------------------------------------------------------------------
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18 */
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19
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21 #ifndef __TOK_H__
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22 #define __TOK_H__
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24 /*==== CONSTANTS ==================================================*/
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26 #define TOK_ERRBASE (-300)
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27 #define TOK_OK (0)
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28 #define TOK_EOCS (TOK_ERRBASE - 1)
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29 #define TOK_NOT_FOUND (TOK_ERRBASE - 2)
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31 /*==== TYPES ======================================================*/
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33 typedef struct KW_DATA
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34 {
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35 const char * const keyword;
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36 const SHORT code;
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37 } KW_DATA;
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39 typedef struct TOK_DCB
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40 {
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41 char * tokbuf;
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42 char * nexttok;
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43 char lastchar;
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44 } TOK_DCB;
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46 /*==== EXPORT =====================================================*/
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48 void tok_init (char *);
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49 SHORT tok_next (char **, char **);
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50 SHORT tok_key (KW_DATA *, char *);
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52 #endif
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53