linux-imx

/*

 *  hp_accel.c - Interface between LIS3LV02DL driver and HP ACPI BIOS

 *

 *  Copyright (C) 2007-2008 Yan Burman

 *  Copyright (C) 2008 Eric Piel

 *  Copyright (C) 2008-2009 Pavel Machek

 *

 *  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

 */

​

#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt

​

#include <linux/kernel.h>

#include <linux/init.h>

#include <linux/dmi.h>

#include <linux/module.h>

#include <linux/types.h>

#include <linux/platform_device.h>

#include <linux/interrupt.h>

#include <linux/delay.h>

#include <linux/wait.h>

#include <linux/poll.h>

#include <linux/freezer.h>

#include <linux/uaccess.h>

#include <linux/leds.h>

#include <linux/atomic.h>

#include <linux/acpi.h>

#include <linux/i8042.h>

#include <linux/serio.h>

#include "../../misc/lis3lv02d/lis3lv02d.h"

​

#define DRIVER_NAME     "hp_accel"

#define ACPI_MDPS_CLASS "accelerometer"

​

/* Delayed LEDs infrastructure ------------------------------------ */

​

/* Special LED class that can defer work */

struct delayed_led_classdev {

    struct led_classdev led_classdev;

    struct work_struct work;

    enum led_brightness new_brightness;

​

    unsigned int led;       /* For driver */

    void (*set_brightness)(struct delayed_led_classdev *data, enum led_brightness value);

};

​

static inline void delayed_set_status_worker(struct work_struct *work)

{

    struct delayed_led_classdev *data =

            container_of(work, struct delayed_led_classdev, work);

​