forked from Minki/linux
1da177e4c3
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
52 lines
1021 B
C
52 lines
1021 B
C
/*
|
|
* 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 <asm/hardware.h>
|
|
#include <asm/leds.h>
|
|
#include <asm/system.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);
|