rt-thread-official/bsp/mini2440/drivers/led.c

/*
 * Copyright (c) 2006-2021, RT-Thread Development Team
 *
 * SPDX-License-Identifier: Apache-2.0
 *
 * Change Logs:
 * Date           Author       Notes
 * 2009-12-27     rdghx        mini2440
 */

/**
 * @addtogroup mini2440
 */
/*@{*/

#include <s3c24x0.h>
#include "led.h"

void rt_hw_led_init(void)
{
    /* GPB5,GPB6,GPB7,GPB8 for LED */
    GPBCON = GPBCON & (~(0xff << 10)) | (0x55 << 10);
    GPBUP  |= (0x0f << 5);
}

void rt_hw_led_on(unsigned char value)
{
    GPBDAT &= ~ ((value & 0x0f) << 5);
}

void rt_hw_led_off(unsigned char value)
{
    GPBDAT |= (value & 0x0f) << 5;
}

/*@}*/