uisimulator/common/backlight-sim.c

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  * $Id$
   9  *
  10  * Copyright (C) 2009 by Thomas Martitz
  11  *
  12  * This program is free software; you can redistribute it and/or
  13  * modify it under the terms of the GNU General Public License
  14  * as published by the Free Software Foundation; either version 2
  15  * of the License, or (at your option) any later version.
  16  *
  17  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  18  * KIND, either express or implied.
  19  *
  20  ****************************************************************************/
  21
  22 #include <stdbool.h>
  23 #include "config.h"
  24 #include "backlight.h"
  25 #include "lcd.h"
  26
  27 #ifdef HAVE_LCD_SLEEP
  28 extern void lcd_awake(void);
  29 #endif
  30 /* in uisimulator/sdl/lcd-bitmap.c and lcd-charcell.c */
  31 extern void sim_backlight(int value);
  32
  33 bool _backlight_init(void)
  34 {
  35     return true;
  36 }
  37
  38
  39 #ifdef HAVE_BACKLIGHT_BRIGHTNESS
  40
  41 static inline int normalize_backlight(int val)
  42 {
  43     /* normalize to xx% brightness for sdl */
  44     return ((val - MIN_BRIGHTNESS_SETTING + 1) * 100) /
  45            (MAX_BRIGHTNESS_SETTING - MIN_BRIGHTNESS_SETTING + 1);
  46 }
  47
  48 void _backlight_set_brightness(int val)
  49 {
  50     sim_backlight(normalize_backlight(val));
  51 }
  52
  53 #endif /* HAVE_BACKLIGHT_BRIGHTNESS */
  54
  55
  56 void _backlight_on(void)
  57 {
  58 #if defined(HAVE_LCD_ENABLE)
  59     lcd_enable(true);
  60 #elif defined(HAVE_LCD_SLEEP)
  61     lcd_awake();
  62 #endif
  63 #if (CONFIG_BACKLIGHT_FADING != BACKLIGHT_FADING_SW_SETTING)
  64     /* if we set the brightness to the settings value, then fading up
  65      * is glitchy */
  66 #ifdef HAVE_BACKLIGHT_BRIGHTNESS
  67     sim_backlight(normalize_backlight(backlight_brightness));
  68 #else
  69     sim_backlight(100);
  70 #endif
  71
  72 #endif
  73 }
  74
  75 void _backlight_off(void)
  76 {
  77     sim_backlight(0);
  78 #ifdef HAVE_LCD_ENABLE
  79     lcd_enable(false);
  80 #endif
  81 }
  82
  83
  84 #ifdef HAVE_BUTTON_LIGHT
  85 void _buttonlight_on(void)
  86 {
  87 }
  88
  89 void _buttonlight_off(void)
  90 {
  91 }
  92
  93 #ifdef HAVE_BUTTONLIGHT_BRIGHTNESS
  94 void _buttonlight_set_brightness(int val)
  95 {
  96     (void)val;
  97 }
  98 #endif /* HAVE_BUTTONLIGHT_BRIGHTNESS */
  99 #endif /* HAVE_BUTTON_LIGHT */
 100
 101 #ifdef HAVE_REMOTE_LCD
 102 void _remote_backlight_on(void)
 103 {
 104     sim_remote_backlight(100);
 105 }
 106
 107 void _remote_backlight_off(void)
 108 {
 109     sim_remote_backlight(0);
 110 }
 111 #endif /* HAVE_REMOTE_LCD */