rockbox/firmware/target/arm/philips/sa9200/backlight-sa9200.c
Daniel Stenberg 2acc0ac542 Updated our source code header to explicitly mention that we are GPL v2 or
later. We still need to hunt down snippets used that are not. 1324 modified
files...
http://www.rockbox.org/mail/archive/rockbox-dev-archive-2008-06/0060.shtml


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@17847 a1c6a512-1295-4272-9138-f99709370657
2008-06-28 18:10:04 +00:00

77 lines
2.2 KiB
C

/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2006 by Barry Wardell
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#include "config.h"
#include "backlight-target.h"
#include "system.h"
#include "lcd.h"
#include "backlight.h"
#include "i2c-pp.h"
#include "as3514.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)
{
#ifdef HAVE_LCD_SLEEP
backlight_lcd_sleep_countdown(false); /* stop counter */
#endif
#ifdef HAVE_LCD_ENABLE
lcd_enable(true); /* power on lcd + visible display */
#endif
pp_i2c_send(AS3514_I2C_ADDR, AS3514_DCDC15, backlight_brightness);
}
void _backlight_off(void)
{
pp_i2c_send(AS3514_I2C_ADDR, AS3514_DCDC15, 0x0);
#ifdef HAVE_LCD_ENABLE
lcd_enable(false); /* power off visible display */
#endif
#ifdef HAVE_LCD_SLEEP
backlight_lcd_sleep_countdown(true); /* start countdown */
#endif
}
void _buttonlight_on(void)
{
GPIO_SET_BITWISE(GPIOG_OUTPUT_VAL, 0x80);
#ifdef SANSA_C200
GPIO_SET_BITWISE(GPIOB_OUTPUT_VAL, 0x10); /* The "menu" backlight */
#endif
}
void _buttonlight_off(void)
{
GPIO_CLEAR_BITWISE(GPIOG_OUTPUT_VAL, 0x80);
#ifdef SANSA_C200
GPIO_CLEAR_BITWISE(GPIOB_OUTPUT_VAL, 0x10); /* The "menu" backlight */
#endif
}