linux-imx

/*

 *  HID driver for multitouch panels

 *

 *  Copyright (c) 2010-2012 Stephane Chatty <chatty@enac.fr>

 *  Copyright (c) 2010-2013 Benjamin Tissoires <benjamin.tissoires@gmail.com>

 *  Copyright (c) 2010-2012 Ecole Nationale de l'Aviation Civile, France

 *  Copyright (c) 2012-2013 Red Hat, Inc

 *

 *  This code is partly based on hid-egalax.c:

 *

 *  Copyright (c) 2010 Stephane Chatty <chatty@enac.fr>

 *  Copyright (c) 2010 Henrik Rydberg <rydberg@euromail.se>

 *  Copyright (c) 2010 Canonical, Ltd.

 *

 *  This code is partly based on hid-3m-pct.c:

 *

 *  Copyright (c) 2009-2010 Stephane Chatty <chatty@enac.fr>

 *  Copyright (c) 2010      Henrik Rydberg <rydberg@euromail.se>

 *  Copyright (c) 2010      Canonical, 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 driver is regularly tested thanks to the test suite in hid-tools[1].

 * Please run these regression tests before patching this module so that

 * your patch won't break existing known devices.

 *

 * [1] https://gitlab.freedesktop.org/libevdev/hid-tools

 */

​

#include <linux/device.h>

#include <linux/hid.h>

#include <linux/module.h>

#include <linux/slab.h>

#include <linux/input/mt.h>

#include <linux/jiffies.h>

#include <linux/string.h>

#include <linux/timer.h>

​

​

MODULE_AUTHOR("Stephane Chatty <chatty@enac.fr>");

MODULE_AUTHOR("Benjamin Tissoires <benjamin.tissoires@gmail.com>");

MODULE_DESCRIPTION("HID multitouch panels");

MODULE_LICENSE("GPL");

​

#include "hid-ids.h"

​

/* quirks to control the device */

#define MT_QUIRK_NOT_SEEN_MEANS_UP  BIT(0)

#define MT_QUIRK_SLOT_IS_CONTACTID  BIT(1)

#define MT_QUIRK_CYPRESS        BIT(2)

#define MT_QUIRK_SLOT_IS_CONTACTNUMBER  BIT(3)

#define MT_QUIRK_ALWAYS_VALID       BIT(4)

#define MT_QUIRK_VALID_IS_INRANGE   BIT(5)

#define MT_QUIRK_VALID_IS_CONFIDENCE    BIT(6)

#define MT_QUIRK_CONFIDENCE     BIT(7)

#define MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE    BIT(8)

#define MT_QUIRK_NO_AREA        BIT(9)

#define MT_QUIRK_IGNORE_DUPLICATES  BIT(10)

#define MT_QUIRK_HOVERING       BIT(11)

#define MT_QUIRK_CONTACT_CNT_ACCURATE   BIT(12)

#define MT_QUIRK_FORCE_GET_FEATURE  BIT(13)

#define MT_QUIRK_FIX_CONST_CONTACT_ID   BIT(14)

#define MT_QUIRK_TOUCH_SIZE_SCALING BIT(15)

#define MT_QUIRK_STICKY_FINGERS     BIT(16)

#define MT_QUIRK_ASUS_CUSTOM_UP     BIT(17)

#define MT_QUIRK_WIN8_PTP_BUTTONS   BIT(18)

​

#define MT_INPUTMODE_TOUCHSCREEN    0x02

#define MT_INPUTMODE_TOUCHPAD       0x03

​

#define MT_BUTTONTYPE_CLICKPAD      0

​

enum latency_mode {

    HID_LATENCY_NORMAL = 0,

    HID_LATENCY_HIGH = 1,

};

​

#define MT_IO_FLAGS_RUNNING     0

#define MT_IO_FLAGS_ACTIVE_SLOTS    1

#define MT_IO_FLAGS_PENDING_SLOTS   2

​

static const bool mtrue = true;     /* default for true */

static const bool mfalse;       /* default for false */

static const __s32 mzero;       /* default for 0 */