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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2006 by Barry Wardell
*
* All files in this archive are subject to the GNU General Public License.
* See the file COPYING in the source tree root for full license agreement.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#include "backlight-target.h"
#include "system.h"
#include "lcd.h"
#include "backlight.h"
#include "i2c-pp.h"
static unsigned short backlight_brightness = DEFAULT_BRIGHTNESS_SETTING;
void __backlight_set_brightness(int brightness)
{
backlight_brightness = brightness;
if (brightness > 0)
__backlight_on();
else
__backlight_off();
}
void __backlight_on(void)
{
lcd_enable(true); /* power on lcd */
pp_i2c_send( 0x46, 0x23, backlight_brightness);
}
void __backlight_off(void)
{
pp_i2c_send( 0x46, 0x23, 0x0);
lcd_enable(false); /* power off lcd */
}
void __button_backlight_on(void)
{
GPIOG_OUTPUT_VAL |=0x80;
}
void __button_backlight_off(void)
{
GPIOG_OUTPUT_VAL &=~ 0x80;
}
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