rockbox/firmware/target/arm/gigabeat/meg-fx/backlight-meg-fx.c
Marcoen Hirschberg bce255d98b implement the gigabeat backlight driver
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@11434 a1c6a512-1295-4272-9138-f99709370657
2006-11-05 07:54:08 +00:00

45 lines
1.4 KiB
C

/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2006 by Linus Nielsen Feltzing
*
* 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.h"
#include "lcd.h"
#include "sc606-meg-fx.h"
int confval = SC606_LOW_FREQ;
void __backlight_on(void)
{
confval |= (SC606_LED_A1 | SC606_LED_A2);
sc606_write(SC606_REG_CONF, confval);
}
void __backlight_off(void)
{
confval &= ~(SC606_LED_A1 | SC606_LED_A2);
sc606_write(SC606_REG_CONF, confval);
}
void __backlight_set_brightness(int brightness)
{
/* The SC606 LED driver can set the brightness in 64 steps */
brightness &= 0x3F;
sc606_write(SC606_REG_A, brightness);
}