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/*

 *  linux/arch/arm/mach-omaha/leds.c

 *

 *  Omaha LED control routines

 *

 *  Copyright (C) 1999-2002 ARM Limited

 *  Copyright (C) 2000 Deep Blue Solutions Ltd

 *

 * 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 program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

 */

#include <linux/kernel.h>

#include <linux/init.h>

#include <asm/hardware.h>

#include <asm/io.h>

#include <asm/leds.h>

#include <asm/system.h>

#include <asm/mach-types.h>

static int saved_leds;

static void omaha_leds_event(led_event_t ledevt)

{

        unsigned long flags;

        unsigned int ctrl = IO_ADDRESS(PLAT_DBG_LEDS);

        unsigned int leds;

        // yup, change the LEDs

        local_irq_save(flags);

        switch(ledevt) {

        case led_idle_start:

                leds = __raw_readl(ctrl);

                leds |= GREEN_LED;

                __raw_writel(leds,ctrl);

                break;

        case led_idle_end:

                leds = __raw_readl(ctrl);

                leds &= ~GREEN_LED;

                __raw_writel(leds,ctrl);

                break;

        case led_timer:

                leds = __raw_readl(ctrl);

                leds ^= YELLOW_LED;

                __raw_writel(leds,ctrl);

                break;

        case led_red_on:

                leds = __raw_readl(ctrl);

                leds |= RED_LED;

                __raw_writel(leds,ctrl);

                break;

        case led_red_off:

                leds = __raw_readl(ctrl);

                leds &= ~RED_LED;

                __raw_writel(leds,ctrl);

                break;

        default:

                break;

        }

        local_irq_restore(flags);

}

static int __init leds_init(void)

{

        if (machine_is_omaha())

                leds_event = omaha_leds_event;

        return 0;

}

__initcall(leds_init);