2acc0ac542
later. We still need to hunt down snippets used that are not. 1324 modified files... http://www.rockbox.org/mail/archive/rockbox-dev-archive-2008-06/0060.shtml git-svn-id: svn://svn.rockbox.org/rockbox/trunk@17847 a1c6a512-1295-4272-9138-f99709370657
64 lines
1.8 KiB
C
64 lines
1.8 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) 2008 by Mark Arigo
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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 "config.h"
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#include "system.h"
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#include "backlight-target.h"
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#define MIN_BRIGHTNESS 0x80ff08ff
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static const int log_brightness[12] = {0,4,8,12,20,28,40,60,88,124,176,255};
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/* Returns the current state of the backlight (true=ON, false=OFF). */
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bool _backlight_init(void)
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{
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return (GPO32_ENABLE & 0x1000000) ? true : false;
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}
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void _backlight_hw_on(void)
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{
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GPO32_ENABLE |= 0x1000000;
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}
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void _backlight_hw_off(void)
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{
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GPO32_ENABLE &= ~0x1000000;
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}
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void _buttonlight_set_brightness(int brightness)
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{
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/* clamp the brightness value */
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brightness = MAX(0, MIN(15, brightness));
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outl(MIN_BRIGHTNESS-(log_brightness[brightness - 1] << 16), 0x7000a010);
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}
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void _buttonlight_on(void)
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{
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/* turn on all touchpad leds */
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GPIOA_OUTPUT_VAL |= BUTTONLIGHT_ALL;
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}
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void _buttonlight_off(void)
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{
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/* turn off all touchpad leds */
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GPIOA_OUTPUT_VAL &= ~BUTTONLIGHT_ALL;
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}
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