mirror of https://gitee.com/openkylin/linux.git
54 lines
982 B
C
54 lines
982 B
C
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/*
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* linux/arch/arm/mach-imx/leds-mx1ads.c
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*
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* Copyright (c) 2004 Sascha Hauer <sascha@saschahauer.de>
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*
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* Original (leds-footbridge.c) by Russell King
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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*/
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <asm/hardware.h>
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#include <asm/system.h>
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#include <asm/io.h>
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#include <asm/leds.h>
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#include "leds.h"
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/*
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* The MX1ADS Board has only one usable LED,
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* so select only the timer led or the
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* cpu usage led
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*/
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void
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mx1ads_leds_event(led_event_t ledevt)
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{
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unsigned long flags;
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local_irq_save(flags);
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switch (ledevt) {
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#ifdef CONFIG_LEDS_CPU
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case led_idle_start:
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DR(0) &= ~(1<<2);
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break;
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case led_idle_end:
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DR(0) |= 1<<2;
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break;
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#endif
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#ifdef CONFIG_LEDS_TIMER
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case led_timer:
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DR(0) ^= 1<<2;
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#endif
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default:
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break;
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}
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local_irq_restore(flags);
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}
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