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Clip: add backlight and buttonlight code

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Revive lcd_enable() as well, and use it in _backlight_on/off()
Don't update the lcd framebuffer if the display is off

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@18952 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Rafaël Carré 2008-10-31 22:02:41 +00:00
parent ee593c95e2
commit 603a9c7c7d
34 changed files with 184 additions and 97 deletions
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58
firmware/target/arm/as3525/sansa-clip/backlight-clip.c Normal file
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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright © 2008 Rafaël Carré
*
* 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 "backlight-target.h"
#include "as3525.h"
/* TODO : backlight brightness */
/* XXX : xpd is used for SD/MCI interface
* If interrupts are used to access this interface, they should be
* disabled in _buttonlight_on/off ()
*/
void _buttonlight_on(void)
{
int saved_ccu_io;
saved_ccu_io = CCU_IO; /* save XPD setting */
CCU_IO &= ~(3<<2); /* setup xpd as GPIO */
GPIOD_DIR |= (1<<7);
GPIOD_PIN(7) = (1<<7); /* set pin d7 high */
CCU_IO = saved_ccu_io; /* restore the previous XPD setting */
}
void _buttonlight_off(void)
{
int saved_ccu_io;
saved_ccu_io = CCU_IO; /* save XPD setting */
CCU_IO &= ~(3<<2); /* setup xpd as GPIO */
GPIOD_DIR |= (1<<7);
GPIOD_PIN(7) = 0; /* set pin d7 low */
CCU_IO = saved_ccu_io; /* restore the previous XPD setting */
}