dbc6b4e39a
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@14625 a1c6a512-1295-4272-9138-f99709370657
63 lines
1.7 KiB
C
63 lines
1.7 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) 2006 by Barry Wardell
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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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#include "lcd.h"
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#include "backlight.h"
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#include "i2c-pp.h"
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static unsigned short backlight_brightness = DEFAULT_BRIGHTNESS_SETTING;
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void __backlight_set_brightness(int brightness)
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{
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backlight_brightness = brightness;
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if (brightness > 0)
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__backlight_on();
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else
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__backlight_off();
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}
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void __backlight_on(void)
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{
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#ifdef HAVE_LCD_ENABLE
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lcd_enable(true); /* power on lcd */
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#endif
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pp_i2c_send( 0x46, 0x23, backlight_brightness);
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}
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void __backlight_off(void)
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{
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pp_i2c_send( 0x46, 0x23, 0x0);
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#ifdef HAVE_LCD_ENABLE
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lcd_enable(false); /* power off lcd */
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#endif
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}
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#ifdef HAVE_BUTTON_LIGHT
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void __button_backlight_on(void)
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{
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GPIOG_OUTPUT_VAL |=0x80;
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}
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void __button_backlight_off(void)
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{
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GPIOG_OUTPUT_VAL &=~ 0x80;
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}
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#endif
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