112 lines
2.5 KiB
C
112 lines
2.5 KiB
C
/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* Copyright (C) 2009 by Thomas Martitz
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#include <stdbool.h>
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#include "config.h"
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#include "backlight.h"
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#include "lcd.h"
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#ifdef HAVE_LCD_SLEEP
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extern void lcd_awake(void);
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#endif
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/* in uisimulator/sdl/lcd-bitmap.c */
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extern void sim_backlight(int value);
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bool backlight_hw_init(void)
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{
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return true;
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}
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#ifdef HAVE_BACKLIGHT_BRIGHTNESS
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static inline int normalize_backlight(int val)
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{
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/* normalize to xx% brightness for sdl */
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return ((val - MIN_BRIGHTNESS_SETTING + 1) * 100) /
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(MAX_BRIGHTNESS_SETTING - MIN_BRIGHTNESS_SETTING + 1);
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}
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void backlight_hw_brightness(int val)
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{
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sim_backlight(normalize_backlight(val));
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}
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#endif /* HAVE_BACKLIGHT_BRIGHTNESS */
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void backlight_hw_on(void)
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{
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#if defined(HAVE_LCD_ENABLE)
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lcd_enable(true);
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#elif defined(HAVE_LCD_SLEEP)
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lcd_awake();
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#endif
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#if (CONFIG_BACKLIGHT_FADING != BACKLIGHT_FADING_SW_SETTING)
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/* if we set the brightness to the settings value, then fading up
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* is glitchy */
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#ifdef HAVE_BACKLIGHT_BRIGHTNESS
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sim_backlight(normalize_backlight(backlight_brightness));
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#else
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sim_backlight(100);
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#endif
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#endif
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}
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void backlight_hw_off(void)
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{
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sim_backlight(0);
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#ifdef HAVE_LCD_ENABLE
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lcd_enable(false);
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#endif
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}
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#ifdef HAVE_BUTTON_LIGHT
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void buttonlight_hw_on(void)
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{
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}
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void buttonlight_hw_off(void)
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{
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}
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#ifdef HAVE_BUTTONLIGHT_BRIGHTNESS
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void buttonlight_hw_brightness(int val)
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{
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(void)val;
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}
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#endif /* HAVE_BUTTONLIGHT_BRIGHTNESS */
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#endif /* HAVE_BUTTON_LIGHT */
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#ifdef HAVE_REMOTE_LCD
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void remote_backlight_hw_on(void)
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{
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sim_remote_backlight(100);
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}
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void remote_backlight_hw_off(void)
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{
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sim_remote_backlight(0);
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}
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#endif /* HAVE_REMOTE_LCD */
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