linux-imx

/*

 * Bachmann ot200 leds driver.

 *

 * Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>

 *         Christian Gmeiner <christian.gmeiner@gmail.com>

 *

 * License: GPL as published by the FSF.

 */

​

#include <linux/kernel.h>

#include <linux/platform_device.h>

#include <linux/slab.h>

#include <linux/leds.h>

#include <linux/io.h>

#include <linux/module.h>

​

​

struct ot200_led {

    struct led_classdev cdev;

    const char *name;

    unsigned long port;

    u8 mask;

};

​

/*

 * The device has three leds on the back panel (led_err, led_init and led_run)

 * and can handle up to seven leds on the front panel.

 */

​

static struct ot200_led leds[] = {

    {

        .name = "led_run",

        .port = 0x5a,

        .mask = BIT(0),

    },

    {

        .name = "led_init",

        .port = 0x5a,

        .mask = BIT(1),

    },

    {

        .name = "led_err",

        .port = 0x5a,

        .mask = BIT(2),

    },

    {

        .name = "led_1",

        .port = 0x49,

        .mask = BIT(6),

    },

    {

        .name = "led_2",

        .port = 0x49,

        .mask = BIT(5),

    },

    {

        .name = "led_3",

        .port = 0x49,

        .mask = BIT(4),

    },

    {

        .name = "led_4",

        .port = 0x49,