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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2007 by Karl Kurbjun
*
* 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 "config.h"
#include "cpu.h"
#include "system.h"
#include "backlight-target.h"
#include "backlight.h"
#include "lcd.h"
#include "power.h"
#include "spi-target.h"
void _backlight_on(void)
{
_backlight_set_brightness(DEFAULT_BRIGHTNESS_SETTING);
}
void _backlight_off(void)
{
_backlight_set_brightness(0);
}
/* Assumes that the backlight has been initialized */
void _backlight_set_brightness(int brightness)
{
uint8_t bl_command[] = {0xa4, 0x00, brightness, 0xbb};
spi_block_transfer(SPI_target_BACKLIGHT, bl_command, 4, 0, 0);
}
void __backlight_dim(bool dim_now)
{
_backlight_set_brightness(dim_now ?
DEFAULT_BRIGHTNESS_SETTING :
DEFAULT_DIMNESS_SETTING);
}
bool _backlight_init(void)
{
_backlight_set_brightness(DEFAULT_BRIGHTNESS_SETTING);
return true;
}
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