1 files changed, 758 insertions, 323 deletions

diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c
index 24fc4423b93..51e25b9407f 100644
--- a/drivers/hid/hid-multitouch.c
+++ b/drivers/hid/hid-multitouch.c
@@ -1,9 +1,10 @@
 /*
  *  HID driver for multitouch panels
  *
- *  Copyright (c) 2010-2011 Stephane Chatty <chatty@enac.fr>
- *  Copyright (c) 2010-2011 Benjamin Tissoires <benjamin.tissoires@gmail.com>
- *  Copyright (c) 2010-2011 Ecole Nationale de l'Aviation Civile, France
+ *  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:
  *
@@ -26,13 +27,24 @@
  * any later version.
  */
 
+/*
+ * This driver is regularly tested thanks to the tool hid-test[1].
+ * This tool relies on hid-replay[2] and a database of hid devices[3].
+ * Please run these regression tests before patching this module so that
+ * your patch won't break existing known devices.
+ *
+ * [1] https://github.com/bentiss/hid-test
+ * [2] https://github.com/bentiss/hid-replay
+ * [3] https://github.com/bentiss/hid-devices
+ */
+
 #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"
+#include <linux/string.h>
 
 
 MODULE_AUTHOR("Stephane Chatty <chatty@enac.fr>");
@@ -51,12 +63,19 @@ MODULE_LICENSE("GPL");
 #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)
+#define MT_QUIRK_NO_AREA		(1 << 9)
+#define MT_QUIRK_IGNORE_DUPLICATES	(1 << 10)
+#define MT_QUIRK_HOVERING		(1 << 11)
+#define MT_QUIRK_CONTACT_CNT_ACCURATE	(1 << 12)
+
+#define MT_INPUTMODE_TOUCHSCREEN	0x02
+#define MT_INPUTMODE_TOUCHPAD		0x03
 
 struct mt_slot {
-	__s32 x, y, p, w, h;
+	__s32 x, y, cx, cy, p, w, h;
 	__s32 contactid;	/* the device ContactID assigned to this slot */
 	bool touch_state;	/* is the touch valid? */
-	bool seen_in_this_frame;/* has this slot been updated */
+	bool inrange_state;	/* is the finger in proximity of the sensor? */
 };
 
 struct mt_class {
@@ -67,22 +86,43 @@ struct mt_class {
 	__s32 sn_height;	/* Signal/noise ratio for height events */
 	__s32 sn_pressure;	/* Signal/noise ratio for pressure events */
 	__u8 maxcontacts;
+	bool is_indirect;	/* true for touchpads */
+	bool export_all_inputs;	/* do not ignore mouse, keyboards, etc... */
+};
+
+struct mt_fields {
+	unsigned usages[HID_MAX_FIELDS];
+	unsigned int length;
 };
 
 struct mt_device {
 	struct mt_slot curdata;	/* placeholder of incoming data */
 	struct mt_class mtclass;	/* our mt device class */
-	unsigned last_field_index;	/* last field index of the report */
+	struct mt_fields *fields;	/* temporary placeholder for storing the
+					   multitouch fields */
+	int cc_index;	/* contact count field index in the report */
+	int cc_value_index;	/* contact count value index in the field */
 	unsigned last_slot_field;	/* the last field of a slot */
-	int last_mt_collection;	/* last known mt-related collection */
-	__s8 inputmode;		/* InputMode HID feature, -1 if non-existent */
+	unsigned mt_report_id;	/* the report ID of the multitouch device */
+	__s16 inputmode;	/* InputMode HID feature, -1 if non-existent */
+	__s16 inputmode_index;	/* InputMode HID feature index in the report */
+	__s16 maxcontact_report_id;	/* Maximum Contact Number HID feature,
+				   -1 if non-existent */
+	__u8 inputmode_value;  /* InputMode HID feature value */
 	__u8 num_received;	/* how many contacts we received */
 	__u8 num_expected;	/* expected last contact index */
 	__u8 maxcontacts;
+	__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 */
+	bool serial_maybe;	/* need to check for serial protocol */
 	bool curvalid;		/* is the current contact valid? */
-	struct mt_slot *slots;
+	unsigned mt_flags;	/* flags to pass to input-mt */
 };
 
+static void mt_post_parse_default_settings(struct mt_device *td);
+static void mt_post_parse(struct mt_device *td);
+
 /* classes of device behavior */
 #define MT_CLS_DEFAULT				0x0001
 
@@ -92,16 +132,30 @@ struct mt_device {
 #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
+/* reserved					0x0008 */
 #define MT_CLS_INRANGE_CONTACTNUMBER		0x0009
+#define MT_CLS_NSMU				0x000a
+/* reserved					0x0010 */
+/* reserved					0x0011 */
+#define MT_CLS_WIN_8				0x0012
+#define MT_CLS_EXPORT_ALL_INPUTS		0x0013
 
 /* vendor specific classes */
 #define MT_CLS_3M				0x0101
-#define MT_CLS_CYPRESS				0x0102
+/* reserved					0x0102 */
 #define MT_CLS_EGALAX				0x0103
 #define MT_CLS_EGALAX_SERIAL			0x0104
+#define MT_CLS_TOPSEED				0x0105
+#define MT_CLS_PANASONIC			0x0106
+#define MT_CLS_FLATFROG				0x0107
+#define MT_CLS_GENERALTOUCH_TWOFINGERS		0x0108
+#define MT_CLS_GENERALTOUCH_PWT_TENFINGERS	0x0109
 
 #define MT_DEFAULT_MAXCONTACT	10
+#define MT_MAX_MAXCONTACT	250
+
+#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)
 
 /*
  * these device-dependent functions determine what slot corresponds
@@ -116,27 +170,11 @@ static int cypress_compute_slot(struct mt_device *td)
 		return -1;
 }
 
-static int find_slot_from_contactid(struct mt_device *td)
-{
-	int i;
-	for (i = 0; i < td->maxcontacts; ++i) {
-		if (td->slots[i].contactid == td->curdata.contactid &&
-			td->slots[i].touch_state)
-			return i;
-	}
-	for (i = 0; i < td->maxcontacts; ++i) {
-		if (!td->slots[i].seen_in_this_frame &&
-			!td->slots[i].touch_state)
-			return i;
-	}
-	/* should not occurs. If this happens that means
-	 * that the device sent more touches that it says
-	 * in the report descriptor. It is ignored then. */
-	return -1;
-}
-
 static struct mt_class mt_classes[] = {
 	{ .name = MT_CLS_DEFAULT,
+		.quirks = MT_QUIRK_ALWAYS_VALID |
+			MT_QUIRK_CONTACT_CNT_ACCURATE },
+	{ .name = MT_CLS_NSMU,
 		.quirks = MT_QUIRK_NOT_SEEN_MEANS_UP },
 	{ .name = MT_CLS_SERIAL,
 		.quirks = MT_QUIRK_ALWAYS_VALID},
@@ -156,13 +194,18 @@ static struct mt_class mt_classes[] = {
 		.quirks = MT_QUIRK_VALID_IS_INRANGE |
 			MT_QUIRK_SLOT_IS_CONTACTNUMBER,
 		.maxcontacts = 2 },
-	{ .name = MT_CLS_DUAL_NSMU_CONTACTID,
-		.quirks = MT_QUIRK_NOT_SEEN_MEANS_UP |
-			MT_QUIRK_SLOT_IS_CONTACTID,
-		.maxcontacts = 2 },
 	{ .name = MT_CLS_INRANGE_CONTACTNUMBER,
 		.quirks = MT_QUIRK_VALID_IS_INRANGE |
 			MT_QUIRK_SLOT_IS_CONTACTNUMBER },
+	{ .name = MT_CLS_WIN_8,
+		.quirks = MT_QUIRK_ALWAYS_VALID |
+			MT_QUIRK_IGNORE_DUPLICATES |
+			MT_QUIRK_HOVERING |
+			MT_QUIRK_CONTACT_CNT_ACCURATE },
+	{ .name = MT_CLS_EXPORT_ALL_INPUTS,
+		.quirks = MT_QUIRK_ALWAYS_VALID |
+			MT_QUIRK_CONTACT_CNT_ACCURATE,
+		.export_all_inputs = true },
 
 	/*
 	 * vendor specific classes
@@ -172,11 +215,9 @@ static struct mt_class mt_classes[] = {
 			MT_QUIRK_SLOT_IS_CONTACTID,
 		.sn_move = 2048,
 		.sn_width = 128,
-		.sn_height = 128 },
-	{ .name = MT_CLS_CYPRESS,
-		.quirks = MT_QUIRK_NOT_SEEN_MEANS_UP |
-			MT_QUIRK_CYPRESS,
-		.maxcontacts = 10 },
+		.sn_height = 128,
+		.maxcontacts = 60,
+	},
 	{ .name = MT_CLS_EGALAX,
 		.quirks =  MT_QUIRK_SLOT_IS_CONTACTID |
 			MT_QUIRK_VALID_IS_INRANGE,
@@ -189,7 +230,31 @@ static struct mt_class mt_classes[] = {
 		.sn_move = 4096,
 		.sn_pressure = 32,
 	},
+	{ .name = MT_CLS_TOPSEED,
+		.quirks = MT_QUIRK_ALWAYS_VALID,
+		.is_indirect = true,
+		.maxcontacts = 2,
+	},
+	{ .name = MT_CLS_PANASONIC,
+		.quirks = MT_QUIRK_NOT_SEEN_MEANS_UP,
+		.maxcontacts = 4 },
+	{ .name	= MT_CLS_GENERALTOUCH_TWOFINGERS,
+		.quirks	= MT_QUIRK_NOT_SEEN_MEANS_UP |
+			MT_QUIRK_VALID_IS_INRANGE |
+			MT_QUIRK_SLOT_IS_CONTACTID,
+		.maxcontacts = 2
+	},
+	{ .name	= MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
+		.quirks	= MT_QUIRK_NOT_SEEN_MEANS_UP |
+			MT_QUIRK_SLOT_IS_CONTACTID
+	},
 
+	{ .name = MT_CLS_FLATFROG,
+		.quirks = MT_QUIRK_NOT_SEEN_MEANS_UP |
+			MT_QUIRK_NO_AREA,
+		.sn_move = 2048,
+		.maxcontacts = 40,
+	},
 	{ }
 };
 
@@ -217,6 +282,9 @@ static ssize_t mt_set_quirks(struct device *dev,
 
 	td->mtclass.quirks = val;
 
+	if (td->cc_index < 0)
+		td->mtclass.quirks &= ~MT_QUIRK_CONTACT_CNT_ACCURATE;
+
 	return count;
 }
 
@@ -238,10 +306,22 @@ static void mt_feature_mapping(struct hid_device *hdev,
 
 	switch (usage->hid) {
 	case HID_DG_INPUTMODE:
+		/* Ignore if value index is out of bounds. */
+		if (usage->usage_index >= field->report_count) {
+			dev_err(&hdev->dev, "HID_DG_INPUTMODE out of range\n");
+			break;
+		}
+
 		td->inputmode = field->report->id;
+		td->inputmode_index = usage->usage_index;
+
 		break;
 	case HID_DG_CONTACTMAX:
+		td->maxcontact_report_id = field->report->id;
 		td->maxcontacts = field->value[0];
+		if (!td->maxcontacts &&
+		    field->logical_maximum <= MT_MAX_MAXCONTACT)
+			td->maxcontacts = field->logical_maximum;
 		if (td->mtclass.maxcontacts)
 			/* check if the maxcontacts is given by the class */
 			td->maxcontacts = td->mtclass.maxcontacts;
@@ -257,58 +337,77 @@ static void set_abs(struct input_dev *input, unsigned int code,
 	int fmax = field->logical_maximum;
 	int fuzz = snratio ? (fmax - fmin) / snratio : 0;
 	input_set_abs_params(input, code, fmin, fmax, fuzz, 0);
+	input_abs_set_res(input, code, hidinput_calc_abs_res(field, code));
 }
 
-static int mt_input_mapping(struct hid_device *hdev, struct hid_input *hi,
+static void mt_store_field(struct hid_usage *usage, struct mt_device *td,
+		struct hid_input *hi)
+{
+	struct mt_fields *f = td->fields;
+
+	if (f->length >= HID_MAX_FIELDS)
+		return;
+
+	f->usages[f->length++] = usage->hid;
+}
+
+static int mt_touch_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);
 	struct mt_class *cls = &td->mtclass;
+	int code;
+	struct hid_usage *prev_usage = NULL;
 
-	/* Only map fields from TouchScreen or TouchPad collections.
-         * We need to ignore fields that belong to other collections
-         * such as Mouse that might have the same GenericDesktop usages. */
 	if (field->application == HID_DG_TOUCHSCREEN)
-		set_bit(INPUT_PROP_DIRECT, hi->input->propbit);
-	else if (field->application == HID_DG_TOUCHPAD)
-		set_bit(INPUT_PROP_POINTER, hi->input->propbit);
-	else
-		return 0;
+		td->mt_flags |= INPUT_MT_DIRECT;
 
-	/* 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;
+	/*
+	 * Model touchscreens providing buttons as touchpads.
+	 */
+	if (field->application == HID_DG_TOUCHPAD ||
+	    (usage->hid & HID_USAGE_PAGE) == HID_UP_BUTTON) {
+		td->mt_flags |= INPUT_MT_POINTER;
+		td->inputmode_value = MT_INPUTMODE_TOUCHPAD;
+	}
+
+	if (usage->usage_index)
+		prev_usage = &field->usage[usage->usage_index - 1];
 
 	switch (usage->hid & HID_USAGE_PAGE) {
 
 	case HID_UP_GENDESK:
 		switch (usage->hid) {
 		case HID_GD_X:
-			hid_map_usage(hi, usage, bit, max,
+			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,
 					EV_ABS, ABS_MT_POSITION_X);
-			set_abs(hi->input, ABS_MT_POSITION_X, field,
-				cls->sn_move);
-			/* touchscreen emulation */
-			set_abs(hi->input, ABS_X, field, cls->sn_move);
-			if (td->last_mt_collection == usage->collection_index) {
-				td->last_slot_field = usage->hid;
-				td->last_field_index = field->index;
+				set_abs(hi->input, ABS_MT_POSITION_X, field,
+					cls->sn_move);
 			}
+
+			mt_store_field(usage, td, hi);
 			return 1;
 		case HID_GD_Y:
-			hid_map_usage(hi, usage, bit, max,
+			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,
 					EV_ABS, ABS_MT_POSITION_Y);
-			set_abs(hi->input, ABS_MT_POSITION_Y, field,
-				cls->sn_move);
-			/* touchscreen emulation */
-			set_abs(hi->input, ABS_Y, field, cls->sn_move);
-			if (td->last_mt_collection == usage->collection_index) {
-				td->last_slot_field = usage->hid;
-				td->last_field_index = field->index;
+				set_abs(hi->input, ABS_MT_POSITION_Y, field,
+					cls->sn_move);
 			}
+
+			mt_store_field(usage, td, hi);
 			return 1;
 		}
 		return 0;
@@ -316,82 +415,79 @@ static int mt_input_mapping(struct hid_device *hdev, struct hid_input *hi,
 	case HID_UP_DIGITIZER:
 		switch (usage->hid) {
 		case HID_DG_INRANGE:
-			if (td->last_mt_collection == usage->collection_index) {
-				td->last_slot_field = usage->hid;
-				td->last_field_index = field->index;
+			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);
 			}
+			mt_store_field(usage, td, hi);
 			return 1;
 		case HID_DG_CONFIDENCE:
-			if (td->last_mt_collection == usage->collection_index) {
-				td->last_slot_field = usage->hid;
-				td->last_field_index = field->index;
-			}
+			mt_store_field(usage, td, hi);
 			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);
-			if (td->last_mt_collection == usage->collection_index) {
-				td->last_slot_field = usage->hid;
-				td->last_field_index = field->index;
-			}
+			mt_store_field(usage, td, hi);
 			return 1;
 		case HID_DG_CONTACTID:
-			if (!td->maxcontacts)
-				td->maxcontacts = MT_DEFAULT_MAXCONTACT;
-			input_mt_init_slots(hi->input, td->maxcontacts);
-			td->last_slot_field = usage->hid;
-			td->last_field_index = field->index;
-			td->last_mt_collection = usage->collection_index;
+			mt_store_field(usage, td, hi);
+			td->touches_by_report++;
+			td->mt_report_id = field->report->id;
 			return 1;
 		case HID_DG_WIDTH:
 			hid_map_usage(hi, usage, bit, max,
 					EV_ABS, ABS_MT_TOUCH_MAJOR);
-			set_abs(hi->input, ABS_MT_TOUCH_MAJOR, field,
-				cls->sn_width);
-			if (td->last_mt_collection == usage->collection_index) {
-				td->last_slot_field = usage->hid;
-				td->last_field_index = field->index;
-			}
+			if (!(cls->quirks & MT_QUIRK_NO_AREA))
+				set_abs(hi->input, ABS_MT_TOUCH_MAJOR, field,
+					cls->sn_width);
+			mt_store_field(usage, td, hi);
 			return 1;
 		case HID_DG_HEIGHT:
 			hid_map_usage(hi, usage, bit, max,
 					EV_ABS, ABS_MT_TOUCH_MINOR);
-			set_abs(hi->input, ABS_MT_TOUCH_MINOR, field,
-				cls->sn_height);
-			input_set_abs_params(hi->input,
+			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,
 					ABS_MT_ORIENTATION, 0, 1, 0, 0);
-			if (td->last_mt_collection == usage->collection_index) {
-				td->last_slot_field = usage->hid;
-				td->last_field_index = field->index;
 			}
+			mt_store_field(usage, td, hi);
 			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);
-			/* touchscreen emulation */
-			set_abs(hi->input, ABS_PRESSURE, field,
-				cls->sn_pressure);
-			if (td->last_mt_collection == usage->collection_index) {
-				td->last_slot_field = usage->hid;
-				td->last_field_index = field->index;
-			}
+			mt_store_field(usage, td, hi);
 			return 1;
 		case HID_DG_CONTACTCOUNT:
-			if (td->last_mt_collection == usage->collection_index)
-				td->last_field_index = field->index;
+			/* Ignore if indexes are out of bounds. */
+			if (field->index >= field->report->maxfield ||
+			    usage->usage_index >= field->report_count)
+				return 1;
+			td->cc_index = field->index;
+			td->cc_value_index = usage->usage_index;
 			return 1;
 		case HID_DG_CONTACTMAX:
 			/* we don't set td->last_slot_field as contactcount and
 			 * contact max are global to the report */
-			if (td->last_mt_collection == usage->collection_index)
-				td->last_field_index = field->index;
+			return -1;
+		case HID_DG_TOUCH:
+			/* Legacy devices use TIPSWITCH and not TOUCH.
+			 * Let's just ignore this field. */
 			return -1;
 		}
 		/* let hid-input decide for the others */
 		return 0;
 
+	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;
+
 	case 0xff000000:
 		/* we do not want to map these: no input-oriented meaning */
 		return -1;
@@ -400,7 +496,7 @@ static int mt_input_mapping(struct hid_device *hdev, struct hid_input *hi,
 	return 0;
 }
 
-static int mt_input_mapped(struct hid_device *hdev, struct hid_input *hi,
+static int mt_touch_input_mapped(struct hid_device *hdev, struct hid_input *hi,
 		struct hid_field *field, struct hid_usage *usage,
 		unsigned long **bit, int *max)
 {
@@ -410,7 +506,7 @@ static int mt_input_mapped(struct hid_device *hdev, struct hid_input *hi,
 	return -1;
 }
 
-static int mt_compute_slot(struct mt_device *td)
+static int mt_compute_slot(struct mt_device *td, struct input_dev *input)
 {
 	__s32 quirks = td->mtclass.quirks;
 
@@ -426,46 +522,39 @@ static int mt_compute_slot(struct mt_device *td)
 	if (quirks & MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE)
 		return td->curdata.contactid - 1;
 
-	return find_slot_from_contactid(td);
+	return input_mt_get_slot_by_key(input, td->curdata.contactid);
 }
 
 /*
  * 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
  */
-static void mt_complete_slot(struct mt_device *td)
+static void mt_complete_slot(struct mt_device *td, struct input_dev *input)
 {
-	td->curdata.seen_in_this_frame = true;
-	if (td->curvalid) {
-		int slotnum = mt_compute_slot(td);
-
-		if (slotnum >= 0 && slotnum < td->maxcontacts)
-			td->slots[slotnum] = td->curdata;
-	}
-	td->num_received++;
-}
+	if ((td->mtclass.quirks & MT_QUIRK_CONTACT_CNT_ACCURATE) &&
+	    td->num_received >= td->num_expected)
+		return;
 
+	if (td->curvalid || (td->mtclass.quirks & MT_QUIRK_ALWAYS_VALID)) {
+		int slotnum = mt_compute_slot(td, input);
+		struct mt_slot *s = &td->curdata;
+		struct input_mt *mt = input->mt;
 
-/*
- * 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_emit_event(struct mt_device *td, struct input_dev *input)
-{
-	int i;
+		if (slotnum < 0 || slotnum >= td->maxcontacts)
+			return;
 
-	for (i = 0; i < td->maxcontacts; ++i) {
-		struct mt_slot *s = &(td->slots[i]);
-		if ((td->mtclass.quirks & MT_QUIRK_NOT_SEEN_MEANS_UP) &&
-			!s->seen_in_this_frame) {
-			s->touch_state = false;
+		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;
 		}
 
-		input_mt_slot(input, i);
+		input_mt_slot(input, slotnum);
 		input_mt_report_slot_state(input, MT_TOOL_FINGER,
-			s->touch_state);
-		if (s->touch_state) {
-			/* this finger is on the screen */
+			s->touch_state || s->inrange_state);
+		if (s->touch_state || s->inrange_state) {
+			/* this finger is in proximity of the sensor */
 			int wide = (s->w > s->h);
 			/* divided by two to match visual scale of touch */
 			int major = max(s->w, s->h) >> 1;
@@ -473,35 +562,55 @@ static void mt_emit_event(struct mt_device *td, struct input_dev *input)
 
 			input_event(input, EV_ABS, ABS_MT_POSITION_X, s->x);
 			input_event(input, EV_ABS, ABS_MT_POSITION_Y, s->y);
+			input_event(input, EV_ABS, ABS_MT_TOOL_X, s->cx);
+			input_event(input, EV_ABS, ABS_MT_TOOL_Y, s->cy);
+			input_event(input, EV_ABS, ABS_MT_DISTANCE,
+				!s->touch_state);
 			input_event(input, EV_ABS, ABS_MT_ORIENTATION, wide);
 			input_event(input, EV_ABS, ABS_MT_PRESSURE, s->p);
 			input_event(input, EV_ABS, ABS_MT_TOUCH_MAJOR, major);
 			input_event(input, EV_ABS, ABS_MT_TOUCH_MINOR, minor);
 		}
-		s->seen_in_this_frame = false;
-
 	}
 
-	input_mt_report_pointer_emulation(input, true);
+	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)
+{
+	input_mt_sync_frame(input);
 	input_sync(input);
 	td->num_received = 0;
 }
 
+static int mt_touch_event(struct hid_device *hid, struct hid_field *field,
+				struct hid_usage *usage, __s32 value)
+{
+	/* 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 int mt_event(struct hid_device *hid, struct hid_field *field,
+static void mt_process_mt_event(struct hid_device *hid, struct hid_field *field,
 				struct hid_usage *usage, __s32 value)
 {
 	struct mt_device *td = hid_get_drvdata(hid);
 	__s32 quirks = td->mtclass.quirks;
+	struct input_dev *input = field->hidinput->input;
 
-	if (hid->claimed & HID_CLAIMED_INPUT && td->slots) {
+	if (hid->claimed & HID_CLAIMED_INPUT) {
 		switch (usage->hid) {
 		case HID_DG_INRANGE:
-			if (quirks & MT_QUIRK_ALWAYS_VALID)
-				td->curvalid = true;
-			else if (quirks & MT_QUIRK_VALID_IS_INRANGE)
+			if (quirks & MT_QUIRK_VALID_IS_INRANGE)
 				td->curvalid = value;
+			if (quirks & MT_QUIRK_HOVERING)
+				td->curdata.inrange_state = value;
 			break;
 		case HID_DG_TIPSWITCH:
 			if (quirks & MT_QUIRK_NOT_SEEN_MEANS_UP)
@@ -519,10 +628,16 @@ static int mt_event(struct hid_device *hid, struct hid_field *field,
 			td->curdata.p = value;
 			break;
 		case HID_GD_X:
-			td->curdata.x = value;
+			if (usage->code == ABS_MT_TOOL_X)
+				td->curdata.cx = value;
+			else
+				td->curdata.x = value;
 			break;
 		case HID_GD_Y:
-			td->curdata.y = value;
+			if (usage->code == ABS_MT_TOOL_Y)
+				td->curdata.cy = value;
+			else
+				td->curdata.y = value;
 			break;
 		case HID_DG_WIDTH:
 			td->curdata.w = value;
@@ -531,34 +646,162 @@ static int mt_event(struct hid_device *hid, struct hid_field *field,
 			td->curdata.h = value;
 			break;
 		case HID_DG_CONTACTCOUNT:
-			/*
-			 * Includes multi-packet support where subsequent
-			 * packets are sent with zero contactcount.
-			 */
-			if (value)
-				td->num_expected = value;
+			break;
+		case HID_DG_TOUCH:
+			/* do nothing */
 			break;
 
 		default:
-			/* fallback to the generic hidinput handling */
-			return 0;
+			if (usage->type)
+				input_event(input, usage->type, usage->code,
+						value);
+			return;
 		}
 
-		if (usage->hid == td->last_slot_field) {
-			mt_complete_slot(td);
+		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_emit_event(td, field->hidinput->input);
+	}
+}
+
+static void mt_touch_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;
 
+	/*
+	 * Includes multi-packet support where subsequent
+	 * packets are sent with zero contactcount.
+	 */
+	if (td->cc_index >= 0) {
+		struct hid_field *field = report->field[td->cc_index];
+		int value = field->value[td->cc_value_index];
+		if (value)
+			td->num_expected = value;
 	}
 
-	/* we have handled the hidinput part, now remains hiddev */
-	if (hid->claimed & HID_CLAIMED_HIDDEV && hid->hiddev_hid_event)
-		hid->hiddev_hid_event(hid, field, usage, value);
+	for (r = 0; r < report->maxfield; r++) {
+		field = report->field[r];
+		count = field->report_count;
 
-	return 1;
+		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]);
+	}
+
+	if (td->num_received >= td->num_expected)
+		mt_sync_frame(td, report->field[0]->hidinput->input);
+}
+
+static void mt_touch_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;
+
+	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;
+
+	if (cls->quirks & MT_QUIRK_NOT_SEEN_MEANS_UP)
+		td->mt_flags |= INPUT_MT_DROP_UNUSED;
+
+	input_mt_init_slots(input, td->maxcontacts, td->mt_flags);
+
+	td->mt_flags = 0;
+}
+
+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);
+
+	/*
+	 * If mtclass.export_all_inputs is not set, only map fields from
+	 * TouchScreen or TouchPad collections. We need to ignore fields
+	 * that belong to other collections such as Mouse that might have
+	 * the same GenericDesktop usages.
+	 */
+	if (!td->mtclass.export_all_inputs &&
+	    field->application != HID_DG_TOUCHSCREEN &&
+	    field->application != HID_DG_PEN &&
+	    field->application != HID_DG_TOUCHPAD)
+		return -1;
+
+	/*
+	 * some egalax touchscreens have "application == HID_DG_TOUCHSCREEN"
+	 * for the stylus.
+	 */
+	if (field->physical == HID_DG_STYLUS)
+		return 0;
+
+	if (field->application == HID_DG_TOUCHSCREEN ||
+	    field->application == HID_DG_TOUCHPAD)
+		return mt_touch_input_mapping(hdev, hi, field, usage, bit, max);
+
+	/* let hid-core decide for the others */
+	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)
+{
+	/*
+	 * some egalax touchscreens have "application == HID_DG_TOUCHSCREEN"
+	 * for the stylus.
+	 */
+	if (field->physical == HID_DG_STYLUS)
+		return 0;
+
+	if (field->application == HID_DG_TOUCHSCREEN ||
+	    field->application == HID_DG_TOUCHPAD)
+		return mt_touch_input_mapped(hdev, hi, field, usage, bit, max);
+
+	/* let hid-core decide for the others */
+	return 0;
+}
+
+static int mt_event(struct hid_device *hid, struct hid_field *field,
+				struct hid_usage *usage, __s32 value)
+{
+	struct mt_device *td = hid_get_drvdata(hid);
+
+	if (field->report->id == td->mt_report_id)
+		return mt_touch_event(hid, field, usage, value);
+
+	return 0;
+}
+
+static void mt_report(struct hid_device *hid, struct hid_report *report)
+{
+	struct mt_device *td = hid_get_drvdata(hid);
+	struct hid_field *field = report->field[0];
+
+	if (!(hid->claimed & HID_CLAIMED_INPUT))
+		return;
+
+	if (report->id == td->mt_report_id)
+		return mt_touch_report(hid, report);
+
+	if (field && field->hidinput && field->hidinput->input)
+		input_sync(field->hidinput->input);
 }
 
 static void mt_set_input_mode(struct hid_device *hdev)
@@ -573,8 +816,125 @@ static void mt_set_input_mode(struct hid_device *hdev)
 	re = &(hdev->report_enum[HID_FEATURE_REPORT]);
 	r = re->report_id_hash[td->inputmode];
 	if (r) {
-		r->field[0]->value[0] = 0x02;
-		usbhid_submit_report(hdev, r, USB_DIR_OUT);
+		r->field[0]->value[td->inputmode_index] = td->inputmode_value;
+		hid_hw_request(hdev, r, HID_REQ_SET_REPORT);
+	}
+}
+
+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;
+			hid_hw_request(hdev, r, HID_REQ_SET_REPORT);
+		}
+	}
+}
+
+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;
+		quirks &= ~MT_QUIRK_CONTACT_CNT_ACCURATE;
+	}
+
+	td->mtclass.quirks = quirks;
+}
+
+static void mt_post_parse(struct mt_device *td)
+{
+	struct mt_fields *f = td->fields;
+	struct mt_class *cls = &td->mtclass;
+
+	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];
+	}
+
+	if (td->cc_index < 0)
+		cls->quirks &= ~MT_QUIRK_CONTACT_CNT_ACCURATE;
+}
+
+static void mt_input_configured(struct hid_device *hdev, struct hid_input *hi)
+{
+	struct mt_device *td = hid_get_drvdata(hdev);
+	char *name;
+	const char *suffix = NULL;
+	struct hid_field *field = hi->report->field[0];
+
+	if (hi->report->id == td->mt_report_id)
+		mt_touch_input_configured(hdev, hi);
+
+	/*
+	 * some egalax touchscreens have "application == HID_DG_TOUCHSCREEN"
+	 * for the stylus. Check this first, and then rely on the application
+	 * field.
+	 */
+	if (hi->report->field[0]->physical == HID_DG_STYLUS) {
+		suffix = "Pen";
+		/* force BTN_STYLUS to allow tablet matching in udev */
+		__set_bit(BTN_STYLUS, hi->input->keybit);
+	} else {
+		switch (field->application) {
+		case HID_GD_KEYBOARD:
+			suffix = "Keyboard";
+			break;
+		case HID_GD_KEYPAD:
+			suffix = "Keypad";
+			break;
+		case HID_GD_MOUSE:
+			suffix = "Mouse";
+			break;
+		case HID_DG_STYLUS:
+			suffix = "Pen";
+			/* force BTN_STYLUS to allow tablet matching in udev */
+			__set_bit(BTN_STYLUS, hi->input->keybit);
+			break;
+		case HID_DG_TOUCHSCREEN:
+			/* we do not set suffix = "Touchscreen" */
+			break;
+		case HID_GD_SYSTEM_CONTROL:
+			suffix = "System Control";
+			break;
+		case HID_CP_CONSUMER_CONTROL:
+			suffix = "Consumer Control";
+			break;
+		default:
+			suffix = "UNKNOWN";
+			break;
+		}
+	}
+
+	if (suffix) {
+		name = devm_kzalloc(&hi->input->dev,
+				    strlen(hdev->name) + strlen(suffix) + 2,
+				    GFP_KERNEL);
+		if (name) {
+			sprintf(name, "%s %s", hdev->name, suffix);
+			hi->input->name = name;
+		}
 	}
 }
 
@@ -596,293 +956,377 @@ static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id)
 	 */
 	hdev->quirks |= HID_QUIRK_NO_INPUT_SYNC;
 
-	td = kzalloc(sizeof(struct mt_device), GFP_KERNEL);
+	/*
+	 * This allows the driver to handle different input sensors
+	 * that emits events through different reports on the same HID
+	 * device.
+	 */
+	hdev->quirks |= HID_QUIRK_MULTI_INPUT;
+	hdev->quirks |= HID_QUIRK_NO_EMPTY_INPUT;
+
+	/*
+	 * Handle special quirks for Windows 8 certified devices.
+	 */
+	if (id->group == HID_GROUP_MULTITOUCH_WIN_8)
+		/*
+		 * Some multitouch screens do not like to be polled for input
+		 * reports. Fortunately, the Win8 spec says that all touches
+		 * should be sent during each report, making the initialization
+		 * of input reports unnecessary.
+		 */
+		hdev->quirks |= HID_QUIRK_NO_INIT_INPUT_REPORTS;
+
+	td = devm_kzalloc(&hdev->dev, sizeof(struct mt_device), GFP_KERNEL);
 	if (!td) {
 		dev_err(&hdev->dev, "cannot allocate multitouch data\n");
 		return -ENOMEM;
 	}
 	td->mtclass = *mtclass;
 	td->inputmode = -1;
-	td->last_mt_collection = -1;
+	td->maxcontact_report_id = -1;
+	td->inputmode_value = MT_INPUTMODE_TOUCHSCREEN;
+	td->cc_index = -1;
+	td->mt_report_id = -1;
 	hid_set_drvdata(hdev, td);
 
+	td->fields = devm_kzalloc(&hdev->dev, sizeof(struct mt_fields),
+				  GFP_KERNEL);
+	if (!td->fields) {
+		dev_err(&hdev->dev, "cannot allocate multitouch fields data\n");
+		return -ENOMEM;
+	}
+
+	if (id->vendor == HID_ANY_ID && id->product == HID_ANY_ID)
+		td->serial_maybe = true;
+
 	ret = hid_parse(hdev);
 	if (ret != 0)
-		goto fail;
+		return ret;
 
 	ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
 	if (ret)
-		goto fail;
-
-	td->slots = kzalloc(td->maxcontacts * sizeof(struct mt_slot),
-				GFP_KERNEL);
-	if (!td->slots) {
-		dev_err(&hdev->dev, "cannot allocate multitouch slots\n");
-		hid_hw_stop(hdev);
-		ret = -ENOMEM;
-		goto fail;
-	}
+		return ret;
 
 	ret = sysfs_create_group(&hdev->dev.kobj, &mt_attribute_group);
 
+	mt_set_maxcontacts(hdev);
 	mt_set_input_mode(hdev);
 
-	return 0;
+	/* release .fields memory as it is not used anymore */
+	devm_kfree(&hdev->dev, td->fields);
+	td->fields = NULL;
 
-fail:
-	kfree(td);
-	return ret;
+	return 0;
 }
 
 #ifdef CONFIG_PM
 static int mt_reset_resume(struct hid_device *hdev)
 {
+	mt_set_maxcontacts(hdev);
 	mt_set_input_mode(hdev);
 	return 0;
 }
+
+static int mt_resume(struct hid_device *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. */
+
+	hid_hw_idle(hdev, 0, 0, HID_REQ_SET_IDLE);
+
+	return 0;
+}
 #endif
 
 static void mt_remove(struct hid_device *hdev)
 {
-	struct mt_device *td = hid_get_drvdata(hdev);
 	sysfs_remove_group(&hdev->dev.kobj, &mt_attribute_group);
 	hid_hw_stop(hdev);
-	kfree(td->slots);
-	kfree(td);
-	hid_set_drvdata(hdev, NULL);
 }
 
+/*
+ * This list contains only:
+ * - VID/PID of products not working with the default multitouch handling
+ * - 2 generic rules.
+ * So there is no point in adding here any device with MT_CLS_DEFAULT.
+ */
 static const struct hid_device_id mt_devices[] = {
 
 	/* 3M panels */
 	{ .driver_data = MT_CLS_3M,
-		HID_USB_DEVICE(USB_VENDOR_ID_3M,
+		MT_USB_DEVICE(USB_VENDOR_ID_3M,
 			USB_DEVICE_ID_3M1968) },
 	{ .driver_data = MT_CLS_3M,
-		HID_USB_DEVICE(USB_VENDOR_ID_3M,
+		MT_USB_DEVICE(USB_VENDOR_ID_3M,
 			USB_DEVICE_ID_3M2256) },
 	{ .driver_data = MT_CLS_3M,
-		HID_USB_DEVICE(USB_VENDOR_ID_3M,
+		MT_USB_DEVICE(USB_VENDOR_ID_3M,
 			USB_DEVICE_ID_3M3266) },
 
-	/* ActionStar panels */
-	{ .driver_data = MT_CLS_DEFAULT,
-		HID_USB_DEVICE(USB_VENDOR_ID_ACTIONSTAR,
-			USB_DEVICE_ID_ACTIONSTAR_1011) },
+	/* Anton devices */
+	{ .driver_data = MT_CLS_EXPORT_ALL_INPUTS,
+		MT_USB_DEVICE(USB_VENDOR_ID_ANTON,
+			USB_DEVICE_ID_ANTON_TOUCH_PAD) },
 
 	/* Atmel panels */
 	{ .driver_data = MT_CLS_SERIAL,
-		HID_USB_DEVICE(USB_VENDOR_ID_ATMEL,
-			USB_DEVICE_ID_ATMEL_MULTITOUCH) },
+		MT_USB_DEVICE(USB_VENDOR_ID_ATMEL,
+			USB_DEVICE_ID_ATMEL_MXT_DIGITIZER) },
+
+	/* Baanto multitouch devices */
+	{ .driver_data = MT_CLS_NSMU,
+		MT_USB_DEVICE(USB_VENDOR_ID_BAANTO,
+			USB_DEVICE_ID_BAANTO_MT_190W2) },
 
 	/* Cando panels */
 	{ .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
-		HID_USB_DEVICE(USB_VENDOR_ID_CANDO,
+		MT_USB_DEVICE(USB_VENDOR_ID_CANDO,
 			USB_DEVICE_ID_CANDO_MULTI_TOUCH) },
 	{ .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
-		HID_USB_DEVICE(USB_VENDOR_ID_CANDO,
-			USB_DEVICE_ID_CANDO_MULTI_TOUCH_10_1) },
-	{ .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
-		HID_USB_DEVICE(USB_VENDOR_ID_CANDO,
-			USB_DEVICE_ID_CANDO_MULTI_TOUCH_11_6) },
-	{ .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
-		HID_USB_DEVICE(USB_VENDOR_ID_CANDO,
+		MT_USB_DEVICE(USB_VENDOR_ID_CANDO,
 			USB_DEVICE_ID_CANDO_MULTI_TOUCH_15_6) },
 
 	/* Chunghwa Telecom touch panels */
-	{  .driver_data = MT_CLS_DEFAULT,
-		HID_USB_DEVICE(USB_VENDOR_ID_CHUNGHWAT,
+	{  .driver_data = MT_CLS_NSMU,
+		MT_USB_DEVICE(USB_VENDOR_ID_CHUNGHWAT,
 			USB_DEVICE_ID_CHUNGHWAT_MULTITOUCH) },
 
 	/* CVTouch panels */
-	{ .driver_data = MT_CLS_DEFAULT,
-		HID_USB_DEVICE(USB_VENDOR_ID_CVTOUCH,
+	{ .driver_data = MT_CLS_NSMU,
+		MT_USB_DEVICE(USB_VENDOR_ID_CVTOUCH,
 			USB_DEVICE_ID_CVTOUCH_SCREEN) },
 
-	/* Cypress panel */
-	{ .driver_data = MT_CLS_CYPRESS,
-		HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS,
-			USB_DEVICE_ID_CYPRESS_TRUETOUCH) },
-
 	/* eGalax devices (resistive) */
 	{ .driver_data = MT_CLS_EGALAX,
-		HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
+		MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
 			USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_480D) },
 	{ .driver_data = MT_CLS_EGALAX,
-		HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
+		MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
 			USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_480E) },
 
 	/* eGalax devices (capacitive) */
+	{ .driver_data = MT_CLS_EGALAX_SERIAL,
+		MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
+			USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7207) },
 	{ .driver_data = MT_CLS_EGALAX,
-		HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
+		MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
 			USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_720C) },
+	{ .driver_data = MT_CLS_EGALAX_SERIAL,
+		MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
+			USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7224) },
+	{ .driver_data = MT_CLS_EGALAX_SERIAL,
+		MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
+			USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_722A) },
+	{ .driver_data = MT_CLS_EGALAX_SERIAL,
+		MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
+			USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_725E) },
+	{ .driver_data = MT_CLS_EGALAX_SERIAL,
+		MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
+			USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7262) },
 	{ .driver_data = MT_CLS_EGALAX,
-		HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
+		MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
 			USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_726B) },
 	{ .driver_data = MT_CLS_EGALAX,
-		HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
+		MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
 			USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72A1) },
+	{ .driver_data = MT_CLS_EGALAX_SERIAL,
+		MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
+			USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72AA) },
 	{ .driver_data = MT_CLS_EGALAX,
 		HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
-			USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72FA) },
+			USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72C4) },
 	{ .driver_data = MT_CLS_EGALAX,
 		HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
+			USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72D0) },
+	{ .driver_data = MT_CLS_EGALAX,
+		MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
+			USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72FA) },
+	{ .driver_data = MT_CLS_EGALAX,
+		MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
 			USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7302) },
 	{ .driver_data = MT_CLS_EGALAX_SERIAL,
-		HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
+		MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
+			USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7349) },
+	{ .driver_data = MT_CLS_EGALAX_SERIAL,
+		MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
+			USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_73F7) },
+	{ .driver_data = MT_CLS_EGALAX_SERIAL,
+		MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
 			USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_A001) },
 
-	/* Elo TouchSystems IntelliTouch Plus panel */
-	{ .driver_data = MT_CLS_DUAL_NSMU_CONTACTID,
-		HID_USB_DEVICE(USB_VENDOR_ID_ELO,
-			USB_DEVICE_ID_ELO_TS2515) },
+	/* Elitegroup panel */
+	{ .driver_data = MT_CLS_SERIAL,
+		MT_USB_DEVICE(USB_VENDOR_ID_ELITEGROUP,
+			USB_DEVICE_ID_ELITEGROUP_05D8) },
+
+	/* Flatfrog Panels */
+	{ .driver_data = MT_CLS_FLATFROG,
+		MT_USB_DEVICE(USB_VENDOR_ID_FLATFROG,
+			USB_DEVICE_ID_MULTITOUCH_3200) },
+
+	/* FocalTech Panels */
+	{ .driver_data = MT_CLS_SERIAL,
+		MT_USB_DEVICE(USB_VENDOR_ID_CYGNAL,
+			USB_DEVICE_ID_FOCALTECH_FTXXXX_MULTITOUCH) },
 
 	/* GeneralTouch panel */
-	{ .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
-		HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
+	{ .driver_data = MT_CLS_GENERALTOUCH_TWOFINGERS,
+		MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
 			USB_DEVICE_ID_GENERAL_TOUCH_WIN7_TWOFINGERS) },
+	{ .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
+		MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
+			USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PWT_TENFINGERS) },
+	{ .driver_data = MT_CLS_GENERALTOUCH_TWOFINGERS,
+		MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
+			USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_0101) },
+	{ .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
+		MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
+			USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_0102) },
+	{ .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
+		MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
+			USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_0106) },
+	{ .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
+		MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
+			USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_010A) },
+	{ .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
+		MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
+			USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_E100) },
+
+	/* Gametel game controller */
+	{ .driver_data = MT_CLS_NSMU,
+		MT_BT_DEVICE(USB_VENDOR_ID_FRUCTEL,
+			USB_DEVICE_ID_GAMETEL_MT_MODE) },
 
 	/* GoodTouch panels */
-	{ .driver_data = MT_CLS_DEFAULT,
-		HID_USB_DEVICE(USB_VENDOR_ID_GOODTOUCH,
+	{ .driver_data = MT_CLS_NSMU,
+		MT_USB_DEVICE(USB_VENDOR_ID_GOODTOUCH,
 			USB_DEVICE_ID_GOODTOUCH_000f) },
 
 	/* Hanvon panels */
 	{ .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID,
-		HID_USB_DEVICE(USB_VENDOR_ID_HANVON_ALT,
+		MT_USB_DEVICE(USB_VENDOR_ID_HANVON_ALT,
 			USB_DEVICE_ID_HANVON_ALT_MULTITOUCH) },
 
-	/* Ideacom panel */
-	{ .driver_data = MT_CLS_SERIAL,
-		HID_USB_DEVICE(USB_VENDOR_ID_IDEACOM,
-			USB_DEVICE_ID_IDEACOM_IDC6650) },
-
 	/* Ilitek dual touch panel */
-	{  .driver_data = MT_CLS_DEFAULT,
-		HID_USB_DEVICE(USB_VENDOR_ID_ILITEK,
+	{  .driver_data = MT_CLS_NSMU,
+		MT_USB_DEVICE(USB_VENDOR_ID_ILITEK,
 			USB_DEVICE_ID_ILITEK_MULTITOUCH) },
 
-	/* IRTOUCH panels */
-	{ .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID,
-		HID_USB_DEVICE(USB_VENDOR_ID_IRTOUCHSYSTEMS,
-			USB_DEVICE_ID_IRTOUCH_INFRARED_USB) },
-
-	/* LG Display panels */
-	{ .driver_data = MT_CLS_DEFAULT,
-		HID_USB_DEVICE(USB_VENDOR_ID_LG,
-			USB_DEVICE_ID_LG_MULTITOUCH) },
-
-	/* Lumio panels */
-	{ .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
-		HID_USB_DEVICE(USB_VENDOR_ID_LUMIO,
-			USB_DEVICE_ID_CRYSTALTOUCH) },
-	{ .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
-		HID_USB_DEVICE(USB_VENDOR_ID_LUMIO,
-			USB_DEVICE_ID_CRYSTALTOUCH_DUAL) },
-
 	/* MosArt panels */
 	{ .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
-		HID_USB_DEVICE(USB_VENDOR_ID_ASUS,
+		MT_USB_DEVICE(USB_VENDOR_ID_ASUS,
 			USB_DEVICE_ID_ASUS_T91MT)},
 	{ .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
-		HID_USB_DEVICE(USB_VENDOR_ID_ASUS,
+		MT_USB_DEVICE(USB_VENDOR_ID_ASUS,
 			USB_DEVICE_ID_ASUSTEK_MULTITOUCH_YFO) },
 	{ .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
-		HID_USB_DEVICE(USB_VENDOR_ID_TURBOX,
+		MT_USB_DEVICE(USB_VENDOR_ID_TURBOX,
 			USB_DEVICE_ID_TURBOX_TOUCHSCREEN_MOSART) },
 
-	/* PenMount panels */
-	{ .driver_data = MT_CLS_CONFIDENCE,
-		HID_USB_DEVICE(USB_VENDOR_ID_PENMOUNT,
-			USB_DEVICE_ID_PENMOUNT_PCI) },
+	/* Panasonic panels */
+	{ .driver_data = MT_CLS_PANASONIC,
+		MT_USB_DEVICE(USB_VENDOR_ID_PANASONIC,
+			USB_DEVICE_ID_PANABOARD_UBT780) },
+	{ .driver_data = MT_CLS_PANASONIC,
+		MT_USB_DEVICE(USB_VENDOR_ID_PANASONIC,
+			USB_DEVICE_ID_PANABOARD_UBT880) },
+
+	/* Novatek Panel */
+	{ .driver_data = MT_CLS_NSMU,
+		MT_USB_DEVICE(USB_VENDOR_ID_NOVATEK,
+			USB_DEVICE_ID_NOVATEK_PCT) },
 
 	/* PixArt optical touch screen */
 	{ .driver_data = MT_CLS_INRANGE_CONTACTNUMBER,
-		HID_USB_DEVICE(USB_VENDOR_ID_PIXART,
+		MT_USB_DEVICE(USB_VENDOR_ID_PIXART,
 			USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN) },
 	{ .driver_data = MT_CLS_INRANGE_CONTACTNUMBER,
-		HID_USB_DEVICE(USB_VENDOR_ID_PIXART,
+		MT_USB_DEVICE(USB_VENDOR_ID_PIXART,
 			USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN1) },
 	{ .driver_data = MT_CLS_INRANGE_CONTACTNUMBER,
-		HID_USB_DEVICE(USB_VENDOR_ID_PIXART,
+		MT_USB_DEVICE(USB_VENDOR_ID_PIXART,
 			USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN2) },
 
 	/* PixCir-based panels */
 	{ .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID,
-		HID_USB_DEVICE(USB_VENDOR_ID_HANVON,
-			USB_DEVICE_ID_HANVON_MULTITOUCH) },
-	{ .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID,
-		HID_USB_DEVICE(USB_VENDOR_ID_CANDO,
+		MT_USB_DEVICE(USB_VENDOR_ID_CANDO,
 			USB_DEVICE_ID_CANDO_PIXCIR_MULTI_TOUCH) },
 
 	/* Quanta-based panels */
 	{ .driver_data = MT_CLS_CONFIDENCE_CONTACT_ID,
-		HID_USB_DEVICE(USB_VENDOR_ID_QUANTA,
-			USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH) },
-	{ .driver_data = MT_CLS_CONFIDENCE_CONTACT_ID,
-		HID_USB_DEVICE(USB_VENDOR_ID_QUANTA,
+		MT_USB_DEVICE(USB_VENDOR_ID_QUANTA,
 			USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3001) },
-	{ .driver_data = MT_CLS_CONFIDENCE_CONTACT_ID,
-		HID_USB_DEVICE(USB_VENDOR_ID_QUANTA,
-			USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3008) },
 
 	/* Stantum panels */
 	{ .driver_data = MT_CLS_CONFIDENCE,
-		HID_USB_DEVICE(USB_VENDOR_ID_STANTUM,
-			USB_DEVICE_ID_MTP)},
-	{ .driver_data = MT_CLS_CONFIDENCE,
-		HID_USB_DEVICE(USB_VENDOR_ID_STANTUM_STM,
+		MT_USB_DEVICE(USB_VENDOR_ID_STANTUM_STM,
 			USB_DEVICE_ID_MTP_STM)},
-	{ .driver_data = MT_CLS_CONFIDENCE,
-		HID_USB_DEVICE(USB_VENDOR_ID_STANTUM_SITRONIX,
-			USB_DEVICE_ID_MTP_SITRONIX)},
+
+	/* TopSeed panels */
+	{ .driver_data = MT_CLS_TOPSEED,
+		MT_USB_DEVICE(USB_VENDOR_ID_TOPSEED2,
+			USB_DEVICE_ID_TOPSEED2_PERIPAD_701) },
 
 	/* Touch International panels */
-	{ .driver_data = MT_CLS_DEFAULT,
-		HID_USB_DEVICE(USB_VENDOR_ID_TOUCH_INTL,
+	{ .driver_data = MT_CLS_NSMU,
+		MT_USB_DEVICE(USB_VENDOR_ID_TOUCH_INTL,
 			USB_DEVICE_ID_TOUCH_INTL_MULTI_TOUCH) },
 
 	/* Unitec panels */
-	{ .driver_data = MT_CLS_DEFAULT,
-		HID_USB_DEVICE(USB_VENDOR_ID_UNITEC,
+	{ .driver_data = MT_CLS_NSMU,
+		MT_USB_DEVICE(USB_VENDOR_ID_UNITEC,
 			USB_DEVICE_ID_UNITEC_USB_TOUCH_0709) },
-	{ .driver_data = MT_CLS_DEFAULT,
-		HID_USB_DEVICE(USB_VENDOR_ID_UNITEC,
+	{ .driver_data = MT_CLS_NSMU,
+		MT_USB_DEVICE(USB_VENDOR_ID_UNITEC,
 			USB_DEVICE_ID_UNITEC_USB_TOUCH_0A19) },
+
+	/* Wistron panels */
+	{ .driver_data = MT_CLS_NSMU,
+		MT_USB_DEVICE(USB_VENDOR_ID_WISTRON,
+			USB_DEVICE_ID_WISTRON_OPTICAL_TOUCH) },
+
 	/* XAT */
-	{ .driver_data = MT_CLS_DEFAULT,
-		HID_USB_DEVICE(USB_VENDOR_ID_XAT,
+	{ .driver_data = MT_CLS_NSMU,
+		MT_USB_DEVICE(USB_VENDOR_ID_XAT,
 			USB_DEVICE_ID_XAT_CSR) },
 
 	/* Xiroku */
-	{ .driver_data = MT_CLS_DEFAULT,
-		HID_USB_DEVICE(USB_VENDOR_ID_XIROKU,
+	{ .driver_data = MT_CLS_NSMU,
+		MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
 			USB_DEVICE_ID_XIROKU_SPX) },
-	{ .driver_data = MT_CLS_DEFAULT,
-		HID_USB_DEVICE(USB_VENDOR_ID_XIROKU,
+	{ .driver_data = MT_CLS_NSMU,
+		MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
 			USB_DEVICE_ID_XIROKU_MPX) },
-	{ .driver_data = MT_CLS_DEFAULT,
-		HID_USB_DEVICE(USB_VENDOR_ID_XIROKU,
+	{ .driver_data = MT_CLS_NSMU,
+		MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
 			USB_DEVICE_ID_XIROKU_CSR) },
-	{ .driver_data = MT_CLS_DEFAULT,
-		HID_USB_DEVICE(USB_VENDOR_ID_XIROKU,
+	{ .driver_data = MT_CLS_NSMU,
+		MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
 			USB_DEVICE_ID_XIROKU_SPX1) },
-	{ .driver_data = MT_CLS_DEFAULT,
-		HID_USB_DEVICE(USB_VENDOR_ID_XIROKU,
+	{ .driver_data = MT_CLS_NSMU,
+		MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
 			USB_DEVICE_ID_XIROKU_MPX1) },
-	{ .driver_data = MT_CLS_DEFAULT,
-		HID_USB_DEVICE(USB_VENDOR_ID_XIROKU,
+	{ .driver_data = MT_CLS_NSMU,
+		MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
 			USB_DEVICE_ID_XIROKU_CSR1) },
-	{ .driver_data = MT_CLS_DEFAULT,
-		HID_USB_DEVICE(USB_VENDOR_ID_XIROKU,
+	{ .driver_data = MT_CLS_NSMU,
+		MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
 			USB_DEVICE_ID_XIROKU_SPX2) },
-	{ .driver_data = MT_CLS_DEFAULT,
-		HID_USB_DEVICE(USB_VENDOR_ID_XIROKU,
+	{ .driver_data = MT_CLS_NSMU,
+		MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
 			USB_DEVICE_ID_XIROKU_MPX2) },
-	{ .driver_data = MT_CLS_DEFAULT,
-		HID_USB_DEVICE(USB_VENDOR_ID_XIROKU,
+	{ .driver_data = MT_CLS_NSMU,
+		MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
 			USB_DEVICE_ID_XIROKU_CSR2) },
 
+	/* Generic MT device */
+	{ HID_DEVICE(HID_BUS_ANY, HID_GROUP_MULTITOUCH, HID_ANY_ID, HID_ANY_ID) },
+
+	/* Generic Win 8 certified MT device */
+	{  .driver_data = MT_CLS_WIN_8,
+		HID_DEVICE(HID_BUS_ANY, HID_GROUP_MULTITOUCH_WIN_8,
+			HID_ANY_ID, HID_ANY_ID) },
 	{ }
 };
 MODULE_DEVICE_TABLE(hid, mt_devices);
@@ -899,23 +1343,14 @@ static struct hid_driver mt_driver = {
 	.remove = mt_remove,
 	.input_mapping = mt_input_mapping,
 	.input_mapped = mt_input_mapped,
+	.input_configured = mt_input_configured,
 	.feature_mapping = mt_feature_mapping,
 	.usage_table = mt_grabbed_usages,
 	.event = mt_event,
+	.report = mt_report,
 #ifdef CONFIG_PM
 	.reset_resume = mt_reset_resume,
+	.resume = mt_resume,
 #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);
+module_hid_driver(mt_driver);