linux-imx

/*

 *  HID driver for some microsoft "special" devices

 *

 *  Copyright (c) 1999 Andreas Gal

 *  Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz>

 *  Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc

 *  Copyright (c) 2006-2007 Jiri Kosina

 *  Copyright (c) 2008 Jiri Slaby

 */

​

/*

 * 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.

 */

​

#include <linux/device.h>

#include <linux/input.h>

#include <linux/hid.h>

#include <linux/module.h>

​

#include "hid-ids.h"

​

#define MS_HIDINPUT     BIT(0)

#define MS_ERGONOMY     BIT(1)

#define MS_PRESENTER        BIT(2)

#define MS_RDESC        BIT(3)

#define MS_NOGET        BIT(4)

#define MS_DUPLICATE_USAGES BIT(5)

#define MS_SURFACE_DIAL     BIT(6)

#define MS_QUIRK_FF     BIT(7)

​

struct ms_data {

    unsigned long quirks;

    struct hid_device *hdev;

    struct work_struct ff_worker;

    __u8 strong;

    __u8 weak;

    void *output_report_dmabuf;

};

​

#define XB1S_FF_REPORT      3

#define ENABLE_WEAK     BIT(0)

#define ENABLE_STRONG       BIT(1)

​

enum {

    MAGNITUDE_STRONG = 2,

    MAGNITUDE_WEAK,

    MAGNITUDE_NUM

};

​

struct xb1s_ff_report {

    __u8    report_id;

    __u8    enable;

    __u8    magnitude[MAGNITUDE_NUM];

    __u8    duration_10ms;

    __u8    start_delay_10ms;

    __u8    loop_count;

} __packed;

​

static __u8 *ms_report_fixup(struct hid_device *hdev, __u8 *rdesc,

        unsigned int *rsize)