808938220a
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@21986 a1c6a512-1295-4272-9138-f99709370657
67 lines
1.6 KiB
C
67 lines
1.6 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 Dave Chapman
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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 "backlight-target.h"
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#include "i2c-s5l8700.h"
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static unsigned char bl_i2c_readbyte(int address)
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{
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unsigned char tmp;
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i2c_read(0xe6, address, 1, &tmp);
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return tmp;
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}
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static void bl_i2c_writebyte(int address, unsigned char val)
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{
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i2c_write(0xe6, address, 1, &val);
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}
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void _backlight_set_brightness(int brightness)
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{
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(void)brightness;
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}
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void _backlight_on(void)
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{
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bl_i2c_writebyte(0x29,1);
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}
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void _backlight_off(void)
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{
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bl_i2c_writebyte(0x29,0);
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}
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bool _backlight_init(void)
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{
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bl_i2c_writebyte(0x2a,6);
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bl_i2c_writebyte(0x28,0x2e);
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bl_i2c_writebyte(0x2b,20);
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_backlight_on();
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return true;
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}
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