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/*
* linux/arch/arm/mach-ebsa110/leds.c
*
* Copyright (C) 1998 Russell King
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* EBSA-110 LED control routines. We use the led as follows:
*
* - Red - toggles state every 50 timer interrupts
*/
#include <linux/module.h>
#include <linux/spinlock.h>
#include <linux/init.h>
#include <mach/hardware.h>
#include <asm/leds.h>
#include <asm/mach-types.h>
static spinlock_t leds_lock;
static void ebsa110_leds_event(led_event_t ledevt)
{
unsigned long flags;
spin_lock_irqsave(&leds_lock, flags);
switch(ledevt) {
case led_timer:
*(volatile unsigned char *)SOFT_BASE ^= 128;
break;
default:
break;
}
spin_unlock_irqrestore(&leds_lock, flags);
}
static int __init leds_init(void)
{
if (machine_is_ebsa110())
leds_event = ebsa110_leds_event;
return 0;
}
__initcall(leds_init);
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