rockbox/firmware/drivers/led.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

68 lines
1.8 KiB
C

/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2002 by Alan Korr
*
* 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 <stdbool.h>
#include "cpu.h"
#include "led.h"
#include "system.h"
#include "kernel.h"
#if (CONFIG_LED == LED_REAL)
void led(bool on)
{
if ( on )
{
or_b(0x40, &PBDRL);
}
else
{
and_b(~0x40, &PBDRL);
}
}
#elif (CONFIG_LED == LED_VIRTUAL) || defined(HAVE_REMOTE_LCD)
static bool current;
static long last_on; /* timestamp of switching off */
void led(bool on)
{
if (current && !on) /* switching off */
{
last_on = current_tick; /* remember for off delay */
}
current = on;
}
bool led_read(int delayticks) /* read by status bar update */
{
/* reading "off" is delayed by user-supplied monoflop value */
return (current || TIME_BEFORE(current_tick, last_on+delayticks));
}
#else
void led(bool on)
{
(void)on;
}
#endif /* CONFIG_LED, HAVE_REMOTE_LCD */