hid-multitouch.c 35.9 KB
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/*
 *  HID driver for multitouch panels
 *
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 *  Copyright (c) 2010-2012 Stephane Chatty <chatty@enac.fr>
 *  Copyright (c) 2010-2012 Benjamin Tissoires <benjamin.tissoires@gmail.com>
 *  Copyright (c) 2010-2012 Ecole Nationale de l'Aviation Civile, France
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 *
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 *  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.
 *
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 *  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.
 *
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 */

/*
 * 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/hid.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/usb.h>
#include <linux/input/mt.h>
#include "usbhid/usbhid.h"


MODULE_AUTHOR("Stephane Chatty <chatty@enac.fr>");
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MODULE_AUTHOR("Benjamin Tissoires <benjamin.tissoires@gmail.com>");
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MODULE_DESCRIPTION("HID multitouch panels");
MODULE_LICENSE("GPL");

#include "hid-ids.h"

/* quirks to control the device */
#define MT_QUIRK_NOT_SEEN_MEANS_UP	(1 << 0)
#define MT_QUIRK_SLOT_IS_CONTACTID	(1 << 1)
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#define MT_QUIRK_CYPRESS		(1 << 2)
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#define MT_QUIRK_SLOT_IS_CONTACTNUMBER	(1 << 3)
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#define MT_QUIRK_ALWAYS_VALID		(1 << 4)
#define MT_QUIRK_VALID_IS_INRANGE	(1 << 5)
#define MT_QUIRK_VALID_IS_CONFIDENCE	(1 << 6)
#define MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE	(1 << 8)
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#define MT_QUIRK_NO_AREA		(1 << 9)
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#define MT_QUIRK_IGNORE_DUPLICATES	(1 << 10)
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#define MT_QUIRK_HOVERING		(1 << 11)
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#define MT_QUIRK_CONTACT_CNT_ACCURATE	(1 << 12)
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struct mt_slot {
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	__s32 x, y, cx, cy, p, w, h;
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	__s32 contactid;	/* the device ContactID assigned to this slot */
	bool touch_state;	/* is the touch valid? */
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	bool inrange_state;	/* is the finger in proximity of the sensor? */
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};

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struct mt_class {
	__s32 name;	/* MT_CLS */
	__s32 quirks;
	__s32 sn_move;	/* Signal/noise ratio for move events */
	__s32 sn_width;	/* Signal/noise ratio for width events */
	__s32 sn_height;	/* Signal/noise ratio for height events */
	__s32 sn_pressure;	/* Signal/noise ratio for pressure events */
	__u8 maxcontacts;
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	bool is_indirect;	/* true for touchpads */
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};

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struct mt_fields {
	unsigned usages[HID_MAX_FIELDS];
	unsigned int length;
};

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struct mt_device {
	struct mt_slot curdata;	/* placeholder of incoming data */
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	struct mt_class mtclass;	/* our mt device class */
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	struct mt_fields *fields;	/* temporary placeholder for storing the
					   multitouch fields */
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	__s32 *contactcount;		/* contact count value in the report */
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	unsigned last_field_index;	/* last field index of the report */
	unsigned last_slot_field;	/* the last field of a slot */
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	unsigned mt_report_id;	/* the report ID of the multitouch device */
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	__s8 inputmode;		/* InputMode HID feature, -1 if non-existent */
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	__s8 inputmode_index;	/* InputMode HID feature index in the report */
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	__s8 maxcontact_report_id;	/* Maximum Contact Number HID feature,
				   -1 if non-existent */
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	__u8 num_received;	/* how many contacts we received */
	__u8 num_expected;	/* expected last contact index */
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	__u8 maxcontacts;
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	__u8 touches_by_report;	/* how many touches are present in one report:
				* 1 means we should use a serial protocol
				* > 1 means hybrid (multitouch) protocol */
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	bool serial_maybe;	/* need to check for serial protocol */
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	bool curvalid;		/* is the current contact valid? */
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	unsigned mt_flags;	/* flags to pass to input-mt */
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};

/* classes of device behavior */
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#define MT_CLS_DEFAULT				0x0001

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#define MT_CLS_SERIAL				0x0002
#define MT_CLS_CONFIDENCE			0x0003
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#define MT_CLS_CONFIDENCE_CONTACT_ID		0x0004
#define MT_CLS_CONFIDENCE_MINUS_ONE		0x0005
#define MT_CLS_DUAL_INRANGE_CONTACTID		0x0006
#define MT_CLS_DUAL_INRANGE_CONTACTNUMBER	0x0007
#define MT_CLS_DUAL_NSMU_CONTACTID		0x0008
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#define MT_CLS_INRANGE_CONTACTNUMBER		0x0009
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#define MT_CLS_ALWAYS_TRUE			0x000a
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/* vendor specific classes */
#define MT_CLS_3M				0x0101
#define MT_CLS_CYPRESS				0x0102
#define MT_CLS_EGALAX				0x0103
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#define MT_CLS_EGALAX_SERIAL			0x0104
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#define MT_CLS_TOPSEED				0x0105
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#define MT_CLS_PANASONIC			0x0106
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#define MT_CLS_FLATFROG				0x0107
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#define MT_CLS_GENERALTOUCH_TWOFINGERS		0x0108
#define MT_CLS_GENERALTOUCH_PWT_TENFINGERS	0x0109
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#define MT_DEFAULT_MAXCONTACT	10
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#define MT_MAX_MAXCONTACT	250
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#define MT_USB_DEVICE(v, p)	HID_DEVICE(BUS_USB, HID_GROUP_MULTITOUCH, v, p)
#define MT_BT_DEVICE(v, p)	HID_DEVICE(BUS_BLUETOOTH, HID_GROUP_MULTITOUCH, v, p)

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/*
 * these device-dependent functions determine what slot corresponds
 * to a valid contact that was just read.
 */

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static int cypress_compute_slot(struct mt_device *td)
{
	if (td->curdata.contactid != 0 || td->num_received == 0)
		return td->curdata.contactid;
	else
		return -1;
}

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static struct mt_class mt_classes[] = {
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	{ .name = MT_CLS_DEFAULT,
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		.quirks = MT_QUIRK_NOT_SEEN_MEANS_UP },
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	{ .name = MT_CLS_SERIAL,
		.quirks = MT_QUIRK_ALWAYS_VALID},
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	{ .name = MT_CLS_CONFIDENCE,
		.quirks = MT_QUIRK_VALID_IS_CONFIDENCE },
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	{ .name = MT_CLS_CONFIDENCE_CONTACT_ID,
		.quirks = MT_QUIRK_VALID_IS_CONFIDENCE |
			MT_QUIRK_SLOT_IS_CONTACTID },
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	{ .name = MT_CLS_CONFIDENCE_MINUS_ONE,
		.quirks = MT_QUIRK_VALID_IS_CONFIDENCE |
			MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE },
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	{ .name = MT_CLS_DUAL_INRANGE_CONTACTID,
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		.quirks = MT_QUIRK_VALID_IS_INRANGE |
			MT_QUIRK_SLOT_IS_CONTACTID,
		.maxcontacts = 2 },
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	{ .name = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
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		.quirks = MT_QUIRK_VALID_IS_INRANGE |
			MT_QUIRK_SLOT_IS_CONTACTNUMBER,
		.maxcontacts = 2 },
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	{ .name = MT_CLS_DUAL_NSMU_CONTACTID,
		.quirks = MT_QUIRK_NOT_SEEN_MEANS_UP |
			MT_QUIRK_SLOT_IS_CONTACTID,
		.maxcontacts = 2 },
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	{ .name = MT_CLS_INRANGE_CONTACTNUMBER,
		.quirks = MT_QUIRK_VALID_IS_INRANGE |
			MT_QUIRK_SLOT_IS_CONTACTNUMBER },
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	{ .name = MT_CLS_ALWAYS_TRUE,
		.quirks = MT_QUIRK_ALWAYS_VALID |
			MT_QUIRK_CONTACT_CNT_ACCURATE },
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	/*
	 * vendor specific classes
	 */
	{ .name = MT_CLS_3M,
		.quirks = MT_QUIRK_VALID_IS_CONFIDENCE |
			MT_QUIRK_SLOT_IS_CONTACTID,
		.sn_move = 2048,
		.sn_width = 128,
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		.sn_height = 128,
		.maxcontacts = 60,
	},
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	{ .name = MT_CLS_CYPRESS,
		.quirks = MT_QUIRK_NOT_SEEN_MEANS_UP |
			MT_QUIRK_CYPRESS,
		.maxcontacts = 10 },
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	{ .name = MT_CLS_EGALAX,
		.quirks =  MT_QUIRK_SLOT_IS_CONTACTID |
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			MT_QUIRK_VALID_IS_INRANGE,
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		.sn_move = 4096,
		.sn_pressure = 32,
	},
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	{ .name = MT_CLS_EGALAX_SERIAL,
		.quirks =  MT_QUIRK_SLOT_IS_CONTACTID |
			MT_QUIRK_ALWAYS_VALID,
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		.sn_move = 4096,
		.sn_pressure = 32,
	},
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	{ .name = MT_CLS_TOPSEED,
		.quirks = MT_QUIRK_ALWAYS_VALID,
		.is_indirect = true,
		.maxcontacts = 2,
	},
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	{ .name = MT_CLS_PANASONIC,
		.quirks = MT_QUIRK_NOT_SEEN_MEANS_UP,
		.maxcontacts = 4 },
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	{ .name	= MT_CLS_GENERALTOUCH_TWOFINGERS,
		.quirks	= MT_QUIRK_NOT_SEEN_MEANS_UP |
			MT_QUIRK_VALID_IS_INRANGE |
			MT_QUIRK_SLOT_IS_CONTACTNUMBER,
		.maxcontacts = 2
	},
	{ .name	= MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
		.quirks	= MT_QUIRK_NOT_SEEN_MEANS_UP |
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			MT_QUIRK_SLOT_IS_CONTACTNUMBER
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	},
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	{ .name = MT_CLS_FLATFROG,
		.quirks = MT_QUIRK_NOT_SEEN_MEANS_UP |
			MT_QUIRK_NO_AREA,
		.sn_move = 2048,
		.maxcontacts = 40,
	},
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	{ }
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};

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static ssize_t mt_show_quirks(struct device *dev,
			   struct device_attribute *attr,
			   char *buf)
{
	struct hid_device *hdev = container_of(dev, struct hid_device, dev);
	struct mt_device *td = hid_get_drvdata(hdev);

	return sprintf(buf, "%u\n", td->mtclass.quirks);
}

static ssize_t mt_set_quirks(struct device *dev,
			  struct device_attribute *attr,
			  const char *buf, size_t count)
{
	struct hid_device *hdev = container_of(dev, struct hid_device, dev);
	struct mt_device *td = hid_get_drvdata(hdev);

	unsigned long val;

	if (kstrtoul(buf, 0, &val))
		return -EINVAL;

	td->mtclass.quirks = val;

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	if (!td->contactcount)
		td->mtclass.quirks &= ~MT_QUIRK_CONTACT_CNT_ACCURATE;

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	return count;
}

static DEVICE_ATTR(quirks, S_IWUSR | S_IRUGO, mt_show_quirks, mt_set_quirks);

static struct attribute *sysfs_attrs[] = {
	&dev_attr_quirks.attr,
	NULL
};

static struct attribute_group mt_attribute_group = {
	.attrs = sysfs_attrs
};

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static void mt_feature_mapping(struct hid_device *hdev,
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		struct hid_field *field, struct hid_usage *usage)
{
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	struct mt_device *td = hid_get_drvdata(hdev);
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	int i;
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	switch (usage->hid) {
	case HID_DG_INPUTMODE:
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		td->inputmode = field->report->id;
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		td->inputmode_index = 0; /* has to be updated below */

		for (i=0; i < field->maxusage; i++) {
			if (field->usage[i].hid == usage->hid) {
				td->inputmode_index = i;
				break;
			}
		}

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		break;
	case HID_DG_CONTACTMAX:
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		td->maxcontact_report_id = field->report->id;
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		td->maxcontacts = field->value[0];
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		if (!td->maxcontacts &&
		    field->logical_maximum <= MT_MAX_MAXCONTACT)
			td->maxcontacts = field->logical_maximum;
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		if (td->mtclass.maxcontacts)
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			/* check if the maxcontacts is given by the class */
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			td->maxcontacts = td->mtclass.maxcontacts;
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		break;
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	case 0xff0000c5:
		if (field->report_count == 256 && field->report_size == 8) {
			/* Win 8 devices need special quirks */
			__s32 *quirks = &td->mtclass.quirks;
			*quirks |= MT_QUIRK_ALWAYS_VALID;
			*quirks |= MT_QUIRK_IGNORE_DUPLICATES;
			*quirks |= MT_QUIRK_HOVERING;
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			*quirks |= MT_QUIRK_CONTACT_CNT_ACCURATE;
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			*quirks &= ~MT_QUIRK_NOT_SEEN_MEANS_UP;
			*quirks &= ~MT_QUIRK_VALID_IS_INRANGE;
			*quirks &= ~MT_QUIRK_VALID_IS_CONFIDENCE;
		}
		break;
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	}
}

static void set_abs(struct input_dev *input, unsigned int code,
		struct hid_field *field, int snratio)
{
	int fmin = field->logical_minimum;
	int fmax = field->logical_maximum;
	int fuzz = snratio ? (fmax - fmin) / snratio : 0;
	input_set_abs_params(input, code, fmin, fmax, fuzz, 0);
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	input_abs_set_res(input, code, hidinput_calc_abs_res(field, code));
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}

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static void mt_store_field(struct hid_usage *usage, struct mt_device *td,
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		struct hid_input *hi)
{
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	struct mt_fields *f = td->fields;

	if (f->length >= HID_MAX_FIELDS)
		return;

	f->usages[f->length++] = usage->hid;
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}

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static int mt_input_mapping(struct hid_device *hdev, struct hid_input *hi,
		struct hid_field *field, struct hid_usage *usage,
		unsigned long **bit, int *max)
{
	struct mt_device *td = hid_get_drvdata(hdev);
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	struct mt_class *cls = &td->mtclass;
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	int code;
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	struct hid_usage *prev_usage = NULL;
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	/* Only map fields from TouchScreen or TouchPad collections.
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	* We need to ignore fields that belong to other collections
	* such as Mouse that might have the same GenericDesktop usages. */
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	if (field->application == HID_DG_TOUCHSCREEN)
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		td->mt_flags |= INPUT_MT_DIRECT;
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	else if (field->application != HID_DG_TOUCHPAD)
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		return 0;

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	/*
	 * Model touchscreens providing buttons as touchpads.
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	 */
	if (field->application == HID_DG_TOUCHPAD ||
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	    (usage->hid & HID_USAGE_PAGE) == HID_UP_BUTTON)
		td->mt_flags |= INPUT_MT_POINTER;
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	/* eGalax devices provide a Digitizer.Stylus input which overrides
	 * the correct Digitizers.Finger X/Y ranges.
	 * Let's just ignore this input. */
	if (field->physical == HID_DG_STYLUS)
		return -1;

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	if (usage->usage_index)
		prev_usage = &field->usage[usage->usage_index - 1];

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	switch (usage->hid & HID_USAGE_PAGE) {

	case HID_UP_GENDESK:
		switch (usage->hid) {
		case HID_GD_X:
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			if (prev_usage && (prev_usage->hid == usage->hid)) {
				hid_map_usage(hi, usage, bit, max,
					EV_ABS, ABS_MT_TOOL_X);
				set_abs(hi->input, ABS_MT_TOOL_X, field,
					cls->sn_move);
			} else {
				hid_map_usage(hi, usage, bit, max,
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					EV_ABS, ABS_MT_POSITION_X);
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				set_abs(hi->input, ABS_MT_POSITION_X, field,
					cls->sn_move);
			}

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			mt_store_field(usage, td, hi);
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			td->last_field_index = field->index;
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			return 1;
		case HID_GD_Y:
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			if (prev_usage && (prev_usage->hid == usage->hid)) {
				hid_map_usage(hi, usage, bit, max,
					EV_ABS, ABS_MT_TOOL_Y);
				set_abs(hi->input, ABS_MT_TOOL_Y, field,
					cls->sn_move);
			} else {
				hid_map_usage(hi, usage, bit, max,
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					EV_ABS, ABS_MT_POSITION_Y);
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				set_abs(hi->input, ABS_MT_POSITION_Y, field,
					cls->sn_move);
			}

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			mt_store_field(usage, td, hi);
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			td->last_field_index = field->index;
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			return 1;
		}
		return 0;

	case HID_UP_DIGITIZER:
		switch (usage->hid) {
		case HID_DG_INRANGE:
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			if (cls->quirks & MT_QUIRK_HOVERING) {
				hid_map_usage(hi, usage, bit, max,
					EV_ABS, ABS_MT_DISTANCE);
				input_set_abs_params(hi->input,
					ABS_MT_DISTANCE, 0, 1, 0, 0);
			}
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			mt_store_field(usage, td, hi);
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			td->last_field_index = field->index;
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			return 1;
		case HID_DG_CONFIDENCE:
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			mt_store_field(usage, td, hi);
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			td->last_field_index = field->index;
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			return 1;
		case HID_DG_TIPSWITCH:
			hid_map_usage(hi, usage, bit, max, EV_KEY, BTN_TOUCH);
			input_set_capability(hi->input, EV_KEY, BTN_TOUCH);
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			mt_store_field(usage, td, hi);
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			td->last_field_index = field->index;
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			return 1;
		case HID_DG_CONTACTID:
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			mt_store_field(usage, td, hi);
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			td->last_field_index = field->index;
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			td->touches_by_report++;
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			td->mt_report_id = field->report->id;
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			return 1;
		case HID_DG_WIDTH:
			hid_map_usage(hi, usage, bit, max,
					EV_ABS, ABS_MT_TOUCH_MAJOR);
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			if (!(cls->quirks & MT_QUIRK_NO_AREA))
				set_abs(hi->input, ABS_MT_TOUCH_MAJOR, field,
					cls->sn_width);
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			mt_store_field(usage, td, hi);
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			td->last_field_index = field->index;
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			return 1;
		case HID_DG_HEIGHT:
			hid_map_usage(hi, usage, bit, max,
					EV_ABS, ABS_MT_TOUCH_MINOR);
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			if (!(cls->quirks & MT_QUIRK_NO_AREA)) {
				set_abs(hi->input, ABS_MT_TOUCH_MINOR, field,
					cls->sn_height);
				input_set_abs_params(hi->input,
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					ABS_MT_ORIENTATION, 0, 1, 0, 0);
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			}
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			mt_store_field(usage, td, hi);
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			td->last_field_index = field->index;
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			return 1;
		case HID_DG_TIPPRESSURE:
			hid_map_usage(hi, usage, bit, max,
					EV_ABS, ABS_MT_PRESSURE);
			set_abs(hi->input, ABS_MT_PRESSURE, field,
				cls->sn_pressure);
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			mt_store_field(usage, td, hi);
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			td->last_field_index = field->index;
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			return 1;
		case HID_DG_CONTACTCOUNT:
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			td->contactcount = field->value + usage->usage_index;
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			td->last_field_index = field->index;
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			return 1;
		case HID_DG_CONTACTMAX:
			/* we don't set td->last_slot_field as contactcount and
			 * contact max are global to the report */
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			td->last_field_index = field->index;
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			return -1;
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		case HID_DG_TOUCH:
			/* Legacy devices use TIPSWITCH and not TOUCH.
			 * Let's just ignore this field. */
			return -1;
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		}
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		/* let hid-input decide for the others */
		return 0;

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	case HID_UP_BUTTON:
		code = BTN_MOUSE + ((usage->hid - 1) & HID_USAGE);
		hid_map_usage(hi, usage, bit, max, EV_KEY, code);
		input_set_capability(hi->input, EV_KEY, code);
		return 1;

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	case 0xff000000:
		/* we do not want to map these: no input-oriented meaning */
		return -1;
	}

	return 0;
}

static int mt_input_mapped(struct hid_device *hdev, struct hid_input *hi,
		struct hid_field *field, struct hid_usage *usage,
		unsigned long **bit, int *max)
{
	if (usage->type == EV_KEY || usage->type == EV_ABS)
		set_bit(usage->type, hi->input->evbit);

	return -1;
}

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static int mt_compute_slot(struct mt_device *td, struct input_dev *input)
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{
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	__s32 quirks = td->mtclass.quirks;
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	if (quirks & MT_QUIRK_SLOT_IS_CONTACTID)
		return td->curdata.contactid;
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	if (quirks & MT_QUIRK_CYPRESS)
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		return cypress_compute_slot(td);

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	if (quirks & MT_QUIRK_SLOT_IS_CONTACTNUMBER)
		return td->num_received;
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	if (quirks & MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE)
		return td->curdata.contactid - 1;

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	return input_mt_get_slot_by_key(input, td->curdata.contactid);
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}

/*
 * this function is called when a whole contact has been processed,
 * so that it can assign it to a slot and store the data there
 */
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static void mt_complete_slot(struct mt_device *td, struct input_dev *input)
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{
539 540 541 542
	if ((td->mtclass.quirks & MT_QUIRK_CONTACT_CNT_ACCURATE) &&
	    td->num_received >= td->num_expected)
		return;

543
	if (td->curvalid || (td->mtclass.quirks & MT_QUIRK_ALWAYS_VALID)) {
544 545
		int slotnum = mt_compute_slot(td, input);
		struct mt_slot *s = &td->curdata;
546
		struct input_mt *mt = input->mt;
547

548 549
		if (slotnum < 0 || slotnum >= td->maxcontacts)
			return;
550

551 552 553 554 555 556 557
		if ((td->mtclass.quirks & MT_QUIRK_IGNORE_DUPLICATES) && mt) {
			struct input_mt_slot *slot = &mt->slots[slotnum];
			if (input_mt_is_active(slot) &&
			    input_mt_is_used(mt, slot))
				return;
		}

558
		input_mt_slot(input, slotnum);
559
		input_mt_report_slot_state(input, MT_TOOL_FINGER,
560 561 562
			s->touch_state || s->inrange_state);
		if (s->touch_state || s->inrange_state) {
			/* this finger is in proximity of the sensor */
563 564 565 566 567
			int wide = (s->w > s->h);
			/* divided by two to match visual scale of touch */
			int major = max(s->w, s->h) >> 1;
			int minor = min(s->w, s->h) >> 1;

568 569
			input_event(input, EV_ABS, ABS_MT_POSITION_X, s->x);
			input_event(input, EV_ABS, ABS_MT_POSITION_Y, s->y);
570 571
			input_event(input, EV_ABS, ABS_MT_TOOL_X, s->cx);
			input_event(input, EV_ABS, ABS_MT_TOOL_Y, s->cy);
572 573
			input_event(input, EV_ABS, ABS_MT_DISTANCE,
				!s->touch_state);
574
			input_event(input, EV_ABS, ABS_MT_ORIENTATION, wide);
575
			input_event(input, EV_ABS, ABS_MT_PRESSURE, s->p);
576 577
			input_event(input, EV_ABS, ABS_MT_TOUCH_MAJOR, major);
			input_event(input, EV_ABS, ABS_MT_TOUCH_MINOR, minor);
578
		}
579 580
	}

581 582 583 584 585 586 587 588 589
	td->num_received++;
}

/*
 * this function is called when a whole packet has been received and processed,
 * so that it can decide what to send to the input layer.
 */
static void mt_sync_frame(struct mt_device *td, struct input_dev *input)
{
590
	input_mt_sync_frame(input);
591 592 593 594 595 596
	input_sync(input);
	td->num_received = 0;
}

static int mt_event(struct hid_device *hid, struct hid_field *field,
				struct hid_usage *usage, __s32 value)
597 598 599 600 601 602 603 604 605 606
{
	/* we will handle the hidinput part later, now remains hiddev */
	if (hid->claimed & HID_CLAIMED_HIDDEV && hid->hiddev_hid_event)
		hid->hiddev_hid_event(hid, field, usage, value);

	return 1;
}

static void mt_process_mt_event(struct hid_device *hid, struct hid_field *field,
				struct hid_usage *usage, __s32 value)
607 608
{
	struct mt_device *td = hid_get_drvdata(hid);
609
	__s32 quirks = td->mtclass.quirks;
610

611
	if (hid->claimed & HID_CLAIMED_INPUT) {
612 613
		switch (usage->hid) {
		case HID_DG_INRANGE:
614
			if (quirks & MT_QUIRK_VALID_IS_INRANGE)
615
				td->curvalid = value;
616 617
			if (quirks & MT_QUIRK_HOVERING)
				td->curdata.inrange_state = value;
618 619
			break;
		case HID_DG_TIPSWITCH:
620 621
			if (quirks & MT_QUIRK_NOT_SEEN_MEANS_UP)
				td->curvalid = value;
622 623 624
			td->curdata.touch_state = value;
			break;
		case HID_DG_CONFIDENCE:
625 626
			if (quirks & MT_QUIRK_VALID_IS_CONFIDENCE)
				td->curvalid = value;
627 628 629 630 631 632 633 634
			break;
		case HID_DG_CONTACTID:
			td->curdata.contactid = value;
			break;
		case HID_DG_TIPPRESSURE:
			td->curdata.p = value;
			break;
		case HID_GD_X:
635 636 637 638
			if (usage->code == ABS_MT_TOOL_X)
				td->curdata.cx = value;
			else
				td->curdata.x = value;
639 640
			break;
		case HID_GD_Y:
641 642 643 644
			if (usage->code == ABS_MT_TOOL_Y)
				td->curdata.cy = value;
			else
				td->curdata.y = value;
645 646 647 648 649 650 651 652 653
			break;
		case HID_DG_WIDTH:
			td->curdata.w = value;
			break;
		case HID_DG_HEIGHT:
			td->curdata.h = value;
			break;
		case HID_DG_CONTACTCOUNT:
			break;
654 655 656
		case HID_DG_TOUCH:
			/* do nothing */
			break;
657 658

		default:
659
			return;
660 661
		}

662 663 664 665 666 667 668 669 670
		if (usage->usage_index + 1 == field->report_count) {
			/* we only take into account the last report. */
			if (usage->hid == td->last_slot_field)
				mt_complete_slot(td, field->hidinput->input);

			if (field->index == td->last_field_index
				&& td->num_received >= td->num_expected)
				mt_sync_frame(td, field->hidinput->input);
		}
671

672
	}
673
}
674

675 676 677 678 679 680
static void mt_report(struct hid_device *hid, struct hid_report *report)
{
	struct mt_device *td = hid_get_drvdata(hid);
	struct hid_field *field;
	unsigned count;
	int r, n;
681

682 683 684 685 686 687
	if (report->id != td->mt_report_id)
		return;

	if (!(hid->claimed & HID_CLAIMED_INPUT))
		return;

688 689 690 691 692 693 694
	/*
	 * Includes multi-packet support where subsequent
	 * packets are sent with zero contactcount.
	 */
	if (td->contactcount && *td->contactcount)
		td->num_expected = *td->contactcount;

695 696 697 698 699 700 701 702 703 704 705
	for (r = 0; r < report->maxfield; r++) {
		field = report->field[r];
		count = field->report_count;

		if (!(HID_MAIN_ITEM_VARIABLE & field->flags))
			continue;

		for (n = 0; n < count; n++)
			mt_process_mt_event(hid, field, &field->usage[n],
					field->value[n]);
	}
706 707 708 709 710 711 712 713 714 715 716 717 718 719
}

static void mt_set_input_mode(struct hid_device *hdev)
{
	struct mt_device *td = hid_get_drvdata(hdev);
	struct hid_report *r;
	struct hid_report_enum *re;

	if (td->inputmode < 0)
		return;

	re = &(hdev->report_enum[HID_FEATURE_REPORT]);
	r = re->report_id_hash[td->inputmode];
	if (r) {
720
		r->field[0]->value[td->inputmode_index] = 0x02;
721 722 723 724
		usbhid_submit_report(hdev, r, USB_DIR_OUT);
	}
}

725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750
static void mt_set_maxcontacts(struct hid_device *hdev)
{
	struct mt_device *td = hid_get_drvdata(hdev);
	struct hid_report *r;
	struct hid_report_enum *re;
	int fieldmax, max;

	if (td->maxcontact_report_id < 0)
		return;

	if (!td->mtclass.maxcontacts)
		return;

	re = &hdev->report_enum[HID_FEATURE_REPORT];
	r = re->report_id_hash[td->maxcontact_report_id];
	if (r) {
		max = td->mtclass.maxcontacts;
		fieldmax = r->field[0]->logical_maximum;
		max = min(fieldmax, max);
		if (r->field[0]->value[0] != max) {
			r->field[0]->value[0] = max;
			usbhid_submit_report(hdev, r, USB_DIR_OUT);
		}
	}
}

751 752 753 754 755 756 757 758 759 760
static void mt_post_parse_default_settings(struct mt_device *td)
{
	__s32 quirks = td->mtclass.quirks;

	/* unknown serial device needs special quirks */
	if (td->touches_by_report == 1) {
		quirks |= MT_QUIRK_ALWAYS_VALID;
		quirks &= ~MT_QUIRK_NOT_SEEN_MEANS_UP;
		quirks &= ~MT_QUIRK_VALID_IS_INRANGE;
		quirks &= ~MT_QUIRK_VALID_IS_CONFIDENCE;
761
		quirks &= ~MT_QUIRK_CONTACT_CNT_ACCURATE;
762 763 764 765 766
	}

	td->mtclass.quirks = quirks;
}

767 768 769
static void mt_post_parse(struct mt_device *td)
{
	struct mt_fields *f = td->fields;
770
	struct mt_class *cls = &td->mtclass;
771 772 773 774 775

	if (td->touches_by_report > 0) {
		int field_count_per_touch = f->length / td->touches_by_report;
		td->last_slot_field = f->usages[field_count_per_touch - 1];
	}
776 777 778

	if (!td->contactcount)
		cls->quirks &= ~MT_QUIRK_CONTACT_CNT_ACCURATE;
779 780
}

781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801
static void mt_input_configured(struct hid_device *hdev, struct hid_input *hi)

{
	struct mt_device *td = hid_get_drvdata(hdev);
	struct mt_class *cls = &td->mtclass;
	struct input_dev *input = hi->input;

	/* Only initialize slots for MT input devices */
	if (!test_bit(ABS_MT_POSITION_X, input->absbit))
		return;

	if (!td->maxcontacts)
		td->maxcontacts = MT_DEFAULT_MAXCONTACT;

	mt_post_parse(td);
	if (td->serial_maybe)
		mt_post_parse_default_settings(td);

	if (cls->is_indirect)
		td->mt_flags |= INPUT_MT_POINTER;

802 803 804
	if (cls->quirks & MT_QUIRK_NOT_SEEN_MEANS_UP)
		td->mt_flags |= INPUT_MT_DROP_UNUSED;

805 806 807 808 809
	input_mt_init_slots(input, td->maxcontacts, td->mt_flags);

	td->mt_flags = 0;
}

810 811
static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id)
{
812
	int ret, i;
813
	struct mt_device *td;
814 815
	struct mt_class *mtclass = mt_classes; /* MT_CLS_DEFAULT */

816 817 818 819
	for (i = 0; mt_classes[i].name ; i++) {
		if (id->driver_data == mt_classes[i].name) {
			mtclass = &(mt_classes[i]);
			break;
820 821
		}
	}
822

823 824 825 826
	/* This allows the driver to correctly support devices
	 * that emit events over several HID messages.
	 */
	hdev->quirks |= HID_QUIRK_NO_INPUT_SYNC;
827

828
	td = kzalloc(sizeof(struct mt_device), GFP_KERNEL);
829 830 831 832
	if (!td) {
		dev_err(&hdev->dev, "cannot allocate multitouch data\n");
		return -ENOMEM;
	}
833
	td->mtclass = *mtclass;
834
	td->inputmode = -1;
835
	td->maxcontact_report_id = -1;
836 837
	hid_set_drvdata(hdev, td);

838 839 840 841 842 843 844
	td->fields = kzalloc(sizeof(struct mt_fields), GFP_KERNEL);
	if (!td->fields) {
		dev_err(&hdev->dev, "cannot allocate multitouch fields data\n");
		ret = -ENOMEM;
		goto fail;
	}

845 846 847
	if (id->vendor == HID_ANY_ID && id->product == HID_ANY_ID)
		td->serial_maybe = true;

848 849 850 851 852
	ret = hid_parse(hdev);
	if (ret != 0)
		goto fail;

	ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
853
	if (ret)
854 855
		goto fail;

856 857
	ret = sysfs_create_group(&hdev->dev.kobj, &mt_attribute_group);

858
	mt_set_maxcontacts(hdev);
859 860
	mt_set_input_mode(hdev);

861 862 863
	kfree(td->fields);
	td->fields = NULL;

864 865 866
	return 0;

fail:
867
	kfree(td->fields);
868 869 870 871 872 873 874
	kfree(td);
	return ret;
}

#ifdef CONFIG_PM
static int mt_reset_resume(struct hid_device *hdev)
{
875
	mt_set_maxcontacts(hdev);
876 877 878
	mt_set_input_mode(hdev);
	return 0;
}
879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904

static int mt_resume(struct hid_device *hdev)
{
	struct usb_interface *intf;
	struct usb_host_interface *interface;
	struct usb_device *dev;

	if (hdev->bus != BUS_USB)
		return 0;

	intf = to_usb_interface(hdev->dev.parent);
	interface = intf->cur_altsetting;
	dev = hid_to_usb_dev(hdev);

	/* Some Elan legacy devices require SET_IDLE to be set on resume.
	 * It should be safe to send it to other devices too.
	 * Tested on 3M, Stantum, Cypress, Zytronic, eGalax, and Elan panels. */

	usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
			HID_REQ_SET_IDLE,
			USB_TYPE_CLASS | USB_RECIP_INTERFACE,
			0, interface->desc.bInterfaceNumber,
			NULL, 0, USB_CTRL_SET_TIMEOUT);

	return 0;
}
905 906 907 908 909
#endif

static void mt_remove(struct hid_device *hdev)
{
	struct mt_device *td = hid_get_drvdata(hdev);
910
	sysfs_remove_group(&hdev->dev.kobj, &mt_attribute_group);
911 912 913 914 915 916 917
	hid_hw_stop(hdev);
	kfree(td);
	hid_set_drvdata(hdev, NULL);
}

static const struct hid_device_id mt_devices[] = {

918 919
	/* 3M panels */
	{ .driver_data = MT_CLS_3M,
920
		MT_USB_DEVICE(USB_VENDOR_ID_3M,
921 922
			USB_DEVICE_ID_3M1968) },
	{ .driver_data = MT_CLS_3M,
923
		MT_USB_DEVICE(USB_VENDOR_ID_3M,
924
			USB_DEVICE_ID_3M2256) },
925
	{ .driver_data = MT_CLS_3M,
926
		MT_USB_DEVICE(USB_VENDOR_ID_3M,
927
			USB_DEVICE_ID_3M3266) },
928

929 930
	/* ActionStar panels */
	{ .driver_data = MT_CLS_DEFAULT,
931
		MT_USB_DEVICE(USB_VENDOR_ID_ACTIONSTAR,
932 933
			USB_DEVICE_ID_ACTIONSTAR_1011) },

934 935
	/* Atmel panels */
	{ .driver_data = MT_CLS_SERIAL,
936
		MT_USB_DEVICE(USB_VENDOR_ID_ATMEL,
937
			USB_DEVICE_ID_ATMEL_MULTITOUCH) },
938
	{ .driver_data = MT_CLS_SERIAL,
939
		MT_USB_DEVICE(USB_VENDOR_ID_ATMEL,
940
			USB_DEVICE_ID_ATMEL_MXT_DIGITIZER) },
941

942 943
	/* Baanto multitouch devices */
	{ .driver_data = MT_CLS_DEFAULT,
944
		MT_USB_DEVICE(USB_VENDOR_ID_BAANTO,
945
			USB_DEVICE_ID_BAANTO_MT_190W2) },
946 947
	/* Cando panels */
	{ .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
948
		MT_USB_DEVICE(USB_VENDOR_ID_CANDO,
949 950
			USB_DEVICE_ID_CANDO_MULTI_TOUCH) },
	{ .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
951
		MT_USB_DEVICE(USB_VENDOR_ID_CANDO,
952 953
			USB_DEVICE_ID_CANDO_MULTI_TOUCH_10_1) },
	{ .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
954
		MT_USB_DEVICE(USB_VENDOR_ID_CANDO,
955 956
			USB_DEVICE_ID_CANDO_MULTI_TOUCH_11_6) },
	{ .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
957
		MT_USB_DEVICE(USB_VENDOR_ID_CANDO,
958 959
			USB_DEVICE_ID_CANDO_MULTI_TOUCH_15_6) },

960 961
	/* Chunghwa Telecom touch panels */
	{  .driver_data = MT_CLS_DEFAULT,
962
		MT_USB_DEVICE(USB_VENDOR_ID_CHUNGHWAT,
963 964
			USB_DEVICE_ID_CHUNGHWAT_MULTITOUCH) },

965 966
	/* CVTouch panels */
	{ .driver_data = MT_CLS_DEFAULT,
967
		MT_USB_DEVICE(USB_VENDOR_ID_CVTOUCH,
968 969
			USB_DEVICE_ID_CVTOUCH_SCREEN) },

970 971 972 973 974
	/* Cypress panel */
	{ .driver_data = MT_CLS_CYPRESS,
		HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS,
			USB_DEVICE_ID_CYPRESS_TRUETOUCH) },

975
	/* eGalax devices (resistive) */
976
	{ .driver_data = MT_CLS_EGALAX,
977
		MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
978 979
			USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_480D) },
	{ .driver_data = MT_CLS_EGALAX,
980
		MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
981
			USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_480E) },
982 983

	/* eGalax devices (capacitive) */
984
	{ .driver_data = MT_CLS_EGALAX,
985
		MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
986
			USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_720C) },
987
	{ .driver_data = MT_CLS_EGALAX_SERIAL,
988
		MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
989 990
			USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7207) },
	{ .driver_data = MT_CLS_EGALAX_SERIAL,
991
		MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
992 993
			USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_725E) },
	{ .driver_data = MT_CLS_EGALAX_SERIAL,
994
		MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
995
			USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7224) },
996
	{ .driver_data = MT_CLS_EGALAX_SERIAL,
997
		MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
998
			USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_722A) },
999
	{ .driver_data = MT_CLS_EGALAX,
1000
		MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1001
			USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_726B) },
1002
	{ .driver_data = MT_CLS_EGALAX_SERIAL,
1003
		MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1004
			USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7262) },
1005
	{ .driver_data = MT_CLS_EGALAX,
1006
		MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1007
			USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72A1) },
1008
	{ .driver_data = MT_CLS_EGALAX_SERIAL,
1009
		MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1010
			USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72AA) },
1011
	{ .driver_data = MT_CLS_EGALAX,
1012
		MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1013
			USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72FA) },
1014
	{ .driver_data = MT_CLS_EGALAX,
1015
		MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1016
			USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7302) },
1017
	{ .driver_data = MT_CLS_EGALAX_SERIAL,
1018
		MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1019
			USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7349) },
1020
	{ .driver_data = MT_CLS_EGALAX_SERIAL,
1021 1022
		MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
			USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_73F7) },
1023
	{ .driver_data = MT_CLS_EGALAX_SERIAL,
1024
		MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1025
			USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_A001) },
1026 1027 1028 1029 1030 1031 1032 1033 1034
	{ .driver_data = MT_CLS_EGALAX,
		HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
			USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7224) },
	{ .driver_data = MT_CLS_EGALAX,
		HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
			USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72D0) },
	{ .driver_data = MT_CLS_EGALAX,
		HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
			USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72C4) },
1035

1036 1037
	/* Elo TouchSystems IntelliTouch Plus panel */
	{ .driver_data = MT_CLS_DUAL_NSMU_CONTACTID,
1038
		MT_USB_DEVICE(USB_VENDOR_ID_ELO,
1039 1040
			USB_DEVICE_ID_ELO_TS2515) },

1041 1042 1043 1044 1045
	/* Flatfrog Panels */
	{ .driver_data = MT_CLS_FLATFROG,
		MT_USB_DEVICE(USB_VENDOR_ID_FLATFROG,
			USB_DEVICE_ID_MULTITOUCH_3200) },

1046
	/* GeneralTouch panel */
1047
	{ .driver_data = MT_CLS_GENERALTOUCH_TWOFINGERS,
1048
		MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
1049
			USB_DEVICE_ID_GENERAL_TOUCH_WIN7_TWOFINGERS) },
1050 1051 1052
	{ .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
		MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
			USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PWT_TENFINGERS) },
1053

1054 1055
	/* Gametel game controller */
	{ .driver_data = MT_CLS_DEFAULT,
1056
		MT_BT_DEVICE(USB_VENDOR_ID_FRUCTEL,
1057 1058
			USB_DEVICE_ID_GAMETEL_MT_MODE) },

1059 1060
	/* GoodTouch panels */
	{ .driver_data = MT_CLS_DEFAULT,
1061
		MT_USB_DEVICE(USB_VENDOR_ID_GOODTOUCH,
1062 1063
			USB_DEVICE_ID_GOODTOUCH_000f) },

1064 1065
	/* Hanvon panels */
	{ .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID,
1066
		MT_USB_DEVICE(USB_VENDOR_ID_HANVON_ALT,
1067 1068
			USB_DEVICE_ID_HANVON_ALT_MULTITOUCH) },

1069 1070
	/* Ideacom panel */
	{ .driver_data = MT_CLS_SERIAL,
1071
		MT_USB_DEVICE(USB_VENDOR_ID_IDEACOM,
1072
			USB_DEVICE_ID_IDEACOM_IDC6650) },
1073
	{ .driver_data = MT_CLS_SERIAL,
1074
		MT_USB_DEVICE(USB_VENDOR_ID_IDEACOM,
1075
			USB_DEVICE_ID_IDEACOM_IDC6651) },
1076

1077 1078
	/* Ilitek dual touch panel */
	{  .driver_data = MT_CLS_DEFAULT,
1079
		MT_USB_DEVICE(USB_VENDOR_ID_ILITEK,
1080 1081
			USB_DEVICE_ID_ILITEK_MULTITOUCH) },

1082 1083
	/* IRTOUCH panels */
	{ .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID,
1084
		MT_USB_DEVICE(USB_VENDOR_ID_IRTOUCHSYSTEMS,
1085 1086
			USB_DEVICE_ID_IRTOUCH_INFRARED_USB) },

1087 1088
	/* LG Display panels */
	{ .driver_data = MT_CLS_DEFAULT,
1089
		MT_USB_DEVICE(USB_VENDOR_ID_LG,
1090 1091
			USB_DEVICE_ID_LG_MULTITOUCH) },

1092 1093
	/* Lumio panels */
	{ .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
1094
		MT_USB_DEVICE(USB_VENDOR_ID_LUMIO,
1095
			USB_DEVICE_ID_CRYSTALTOUCH) },
1096
	{ .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
1097
		MT_USB_DEVICE(USB_VENDOR_ID_LUMIO,
1098
			USB_DEVICE_ID_CRYSTALTOUCH_DUAL) },
1099

1100 1101
	/* MosArt panels */
	{ .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
1102
		MT_USB_DEVICE(USB_VENDOR_ID_ASUS,
1103 1104
			USB_DEVICE_ID_ASUS_T91MT)},
	{ .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
1105
		MT_USB_DEVICE(USB_VENDOR_ID_ASUS,
1106 1107
			USB_DEVICE_ID_ASUSTEK_MULTITOUCH_YFO) },
	{ .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
1108
		MT_USB_DEVICE(USB_VENDOR_ID_TURBOX,
1109 1110
			USB_DEVICE_ID_TURBOX_TOUCHSCREEN_MOSART) },

1111 1112 1113 1114 1115
	/* Nexio panels */
	{ .driver_data = MT_CLS_ALWAYS_TRUE,
		MT_USB_DEVICE(USB_VENDOR_ID_NEXIO,
			USB_DEVICE_ID_NEXIO_MULTITOUCH_420)},

1116 1117
	/* Panasonic panels */
	{ .driver_data = MT_CLS_PANASONIC,
1118
		MT_USB_DEVICE(USB_VENDOR_ID_PANASONIC,
1119 1120
			USB_DEVICE_ID_PANABOARD_UBT780) },
	{ .driver_data = MT_CLS_PANASONIC,
1121
		MT_USB_DEVICE(USB_VENDOR_ID_PANASONIC,
1122 1123
			USB_DEVICE_ID_PANABOARD_UBT880) },

1124 1125
	/* Novatek Panel */
	{ .driver_data = MT_CLS_DEFAULT,
1126
		MT_USB_DEVICE(USB_VENDOR_ID_NOVATEK,
1127 1128
			USB_DEVICE_ID_NOVATEK_PCT) },

1129 1130
	/* PenMount panels */
	{ .driver_data = MT_CLS_CONFIDENCE,
1131
		MT_USB_DEVICE(USB_VENDOR_ID_PENMOUNT,
1132 1133
			USB_DEVICE_ID_PENMOUNT_PCI) },

1134 1135
	/* PixArt optical touch screen */
	{ .driver_data = MT_CLS_INRANGE_CONTACTNUMBER,
1136
		MT_USB_DEVICE(USB_VENDOR_ID_PIXART,
1137 1138
			USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN) },
	{ .driver_data = MT_CLS_INRANGE_CONTACTNUMBER,
1139
		MT_USB_DEVICE(USB_VENDOR_ID_PIXART,
1140 1141
			USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN1) },
	{ .driver_data = MT_CLS_INRANGE_CONTACTNUMBER,
1142
		MT_USB_DEVICE(USB_VENDOR_ID_PIXART,
1143 1144
			USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN2) },

1145
	/* PixCir-based panels */
1146
	{ .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID,
1147
		MT_USB_DEVICE(USB_VENDOR_ID_HANVON,
1148
			USB_DEVICE_ID_HANVON_MULTITOUCH) },
1149
	{ .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID,
1150
		MT_USB_DEVICE(USB_VENDOR_ID_CANDO,
1151 1152
			USB_DEVICE_ID_CANDO_PIXCIR_MULTI_TOUCH) },

1153 1154
	/* Quanta-based panels */
	{ .driver_data = MT_CLS_CONFIDENCE_CONTACT_ID,
1155
		MT_USB_DEVICE(USB_VENDOR_ID_QUANTA,
1156 1157
			USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH) },
	{ .driver_data = MT_CLS_CONFIDENCE_CONTACT_ID,
1158
		MT_USB_DEVICE(USB_VENDOR_ID_QUANTA,
1159 1160
			USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3001) },
	{ .driver_data = MT_CLS_CONFIDENCE_CONTACT_ID,
1161
		MT_USB_DEVICE(USB_VENDOR_ID_QUANTA,
1162 1163
			USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3008) },

1164
	/* Stantum panels */
1165
	{ .driver_data = MT_CLS_CONFIDENCE,
1166
		MT_USB_DEVICE(USB_VENDOR_ID_STANTUM,
1167
			USB_DEVICE_ID_MTP)},
1168
	{ .driver_data = MT_CLS_CONFIDENCE,
1169
		MT_USB_DEVICE(USB_VENDOR_ID_STANTUM_STM,
1170
			USB_DEVICE_ID_MTP_STM)},
1171
	{ .driver_data = MT_CLS_ALWAYS_TRUE,
1172
		MT_USB_DEVICE(USB_VENDOR_ID_STANTUM_SITRONIX,
1173 1174
			USB_DEVICE_ID_MTP_SITRONIX)},

1175 1176
	/* TopSeed panels */
	{ .driver_data = MT_CLS_TOPSEED,
1177
		MT_USB_DEVICE(USB_VENDOR_ID_TOPSEED2,
1178 1179
			USB_DEVICE_ID_TOPSEED2_PERIPAD_701) },

1180 1181
	/* Touch International panels */
	{ .driver_data = MT_CLS_DEFAULT,
1182
		MT_USB_DEVICE(USB_VENDOR_ID_TOUCH_INTL,
1183 1184
			USB_DEVICE_ID_TOUCH_INTL_MULTI_TOUCH) },

1185 1186
	/* Unitec panels */
	{ .driver_data = MT_CLS_DEFAULT,
1187
		MT_USB_DEVICE(USB_VENDOR_ID_UNITEC,
1188 1189
			USB_DEVICE_ID_UNITEC_USB_TOUCH_0709) },
	{ .driver_data = MT_CLS_DEFAULT,
1190
		MT_USB_DEVICE(USB_VENDOR_ID_UNITEC,
1191
			USB_DEVICE_ID_UNITEC_USB_TOUCH_0A19) },
1192 1193
	/* XAT */
	{ .driver_data = MT_CLS_DEFAULT,
1194
		MT_USB_DEVICE(USB_VENDOR_ID_XAT,
1195
			USB_DEVICE_ID_XAT_CSR) },
1196

1197 1198
	/* Xiroku */
	{ .driver_data = MT_CLS_DEFAULT,
1199
		MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1200 1201
			USB_DEVICE_ID_XIROKU_SPX) },
	{ .driver_data = MT_CLS_DEFAULT,
1202
		MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1203 1204
			USB_DEVICE_ID_XIROKU_MPX) },
	{ .driver_data = MT_CLS_DEFAULT,
1205
		MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1206 1207
			USB_DEVICE_ID_XIROKU_CSR) },
	{ .driver_data = MT_CLS_DEFAULT,
1208
		MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1209 1210
			USB_DEVICE_ID_XIROKU_SPX1) },
	{ .driver_data = MT_CLS_DEFAULT,
1211
		MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1212 1213
			USB_DEVICE_ID_XIROKU_MPX1) },
	{ .driver_data = MT_CLS_DEFAULT,
1214
		MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1215 1216
			USB_DEVICE_ID_XIROKU_CSR1) },
	{ .driver_data = MT_CLS_DEFAULT,
1217
		MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1218 1219
			USB_DEVICE_ID_XIROKU_SPX2) },
	{ .driver_data = MT_CLS_DEFAULT,
1220
		MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1221 1222
			USB_DEVICE_ID_XIROKU_MPX2) },
	{ .driver_data = MT_CLS_DEFAULT,
1223
		MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1224 1225
			USB_DEVICE_ID_XIROKU_CSR2) },

1226 1227 1228 1229 1230
	/* Zytronic panels */
	{ .driver_data = MT_CLS_SERIAL,
		MT_USB_DEVICE(USB_VENDOR_ID_ZYTRONIC,
			USB_DEVICE_ID_ZYTRONIC_ZXY100) },

1231 1232
	/* Generic MT device */
	{ HID_DEVICE(HID_BUS_ANY, HID_GROUP_MULTITOUCH, HID_ANY_ID, HID_ANY_ID) },
1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248
	{ }
};
MODULE_DEVICE_TABLE(hid, mt_devices);

static const struct hid_usage_id mt_grabbed_usages[] = {
	{ HID_ANY_ID, HID_ANY_ID, HID_ANY_ID },
	{ HID_ANY_ID - 1, HID_ANY_ID - 1, HID_ANY_ID - 1}
};

static struct hid_driver mt_driver = {
	.name = "hid-multitouch",
	.id_table = mt_devices,
	.probe = mt_probe,
	.remove = mt_remove,
	.input_mapping = mt_input_mapping,
	.input_mapped = mt_input_mapped,
1249
	.input_configured = mt_input_configured,
1250 1251 1252
	.feature_mapping = mt_feature_mapping,
	.usage_table = mt_grabbed_usages,
	.event = mt_event,
1253
	.report = mt_report,
1254 1255
#ifdef CONFIG_PM
	.reset_resume = mt_reset_resume,
1256
	.resume = mt_resume,
1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271
#endif
};

static int __init mt_init(void)
{
	return hid_register_driver(&mt_driver);
}

static void __exit mt_exit(void)
{
	hid_unregister_driver(&mt_driver);
}

module_init(mt_init);
module_exit(mt_exit);