4c86e34517
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@17134 a1c6a512-1295-4272-9138-f99709370657
55 lines
1.5 KiB
C
55 lines
1.5 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) 2008 by Mark Arigo
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*
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* All files in this archive are subject to the GNU General Public License.
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* See the file COPYING in the source tree root for full license agreement.
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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 "backlight-target.h"
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#include "system.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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void _backlight_on(void)
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{
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GPO32_ENABLE |= 0x1000000;
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}
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void _backlight_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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