2 * HID driver for multitouch panels
4 * Copyright (c) 2010-2012 Stephane Chatty <chatty@enac.fr>
5 * Copyright (c) 2010-2013 Benjamin Tissoires <benjamin.tissoires@gmail.com>
6 * Copyright (c) 2010-2012 Ecole Nationale de l'Aviation Civile, France
7 * Copyright (c) 2012-2013 Red Hat, Inc
9 * This code is partly based on hid-egalax.c:
11 * Copyright (c) 2010 Stephane Chatty <chatty@enac.fr>
12 * Copyright (c) 2010 Henrik Rydberg <rydberg@euromail.se>
13 * Copyright (c) 2010 Canonical, Ltd.
15 * This code is partly based on hid-3m-pct.c:
17 * Copyright (c) 2009-2010 Stephane Chatty <chatty@enac.fr>
18 * Copyright (c) 2010 Henrik Rydberg <rydberg@euromail.se>
19 * Copyright (c) 2010 Canonical, Ltd.
24 * This program is free software; you can redistribute it and/or modify it
25 * under the terms of the GNU General Public License as published by the Free
26 * Software Foundation; either version 2 of the License, or (at your option)
31 * This driver is regularly tested thanks to the tool hid-test[1].
32 * This tool relies on hid-replay[2] and a database of hid devices[3].
33 * Please run these regression tests before patching this module so that
34 * your patch won't break existing known devices.
36 * [1] https://github.com/bentiss/hid-test
37 * [2] https://github.com/bentiss/hid-replay
38 * [3] https://github.com/bentiss/hid-devices
41 #include <linux/device.h>
42 #include <linux/hid.h>
43 #include <linux/module.h>
44 #include <linux/slab.h>
45 #include <linux/input/mt.h>
46 #include <linux/string.h>
49 MODULE_AUTHOR("Stephane Chatty <chatty@enac.fr>");
50 MODULE_AUTHOR("Benjamin Tissoires <benjamin.tissoires@gmail.com>");
51 MODULE_DESCRIPTION("HID multitouch panels");
52 MODULE_LICENSE("GPL");
56 /* quirks to control the device */
57 #define MT_QUIRK_NOT_SEEN_MEANS_UP (1 << 0)
58 #define MT_QUIRK_SLOT_IS_CONTACTID (1 << 1)
59 #define MT_QUIRK_CYPRESS (1 << 2)
60 #define MT_QUIRK_SLOT_IS_CONTACTNUMBER (1 << 3)
61 #define MT_QUIRK_ALWAYS_VALID (1 << 4)
62 #define MT_QUIRK_VALID_IS_INRANGE (1 << 5)
63 #define MT_QUIRK_VALID_IS_CONFIDENCE (1 << 6)
64 #define MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE (1 << 8)
65 #define MT_QUIRK_NO_AREA (1 << 9)
66 #define MT_QUIRK_IGNORE_DUPLICATES (1 << 10)
67 #define MT_QUIRK_HOVERING (1 << 11)
68 #define MT_QUIRK_CONTACT_CNT_ACCURATE (1 << 12)
69 #define MT_QUIRK_FORCE_GET_FEATURE (1 << 13)
71 #define MT_INPUTMODE_TOUCHSCREEN 0x02
72 #define MT_INPUTMODE_TOUCHPAD 0x03
74 #define MT_BUTTONTYPE_CLICKPAD 0
77 __s32 x, y, cx, cy, p, w, h;
78 __s32 contactid; /* the device ContactID assigned to this slot */
79 bool touch_state; /* is the touch valid? */
80 bool inrange_state; /* is the finger in proximity of the sensor? */
84 __s32 name; /* MT_CLS */
86 __s32 sn_move; /* Signal/noise ratio for move events */
87 __s32 sn_width; /* Signal/noise ratio for width events */
88 __s32 sn_height; /* Signal/noise ratio for height events */
89 __s32 sn_pressure; /* Signal/noise ratio for pressure events */
91 bool is_indirect; /* true for touchpads */
92 bool export_all_inputs; /* do not ignore mouse, keyboards, etc... */
96 unsigned usages[HID_MAX_FIELDS];
101 struct mt_slot curdata; /* placeholder of incoming data */
102 struct mt_class mtclass; /* our mt device class */
103 struct mt_fields *fields; /* temporary placeholder for storing the
105 int cc_index; /* contact count field index in the report */
106 int cc_value_index; /* contact count value index in the field */
107 unsigned last_slot_field; /* the last field of a slot */
108 unsigned mt_report_id; /* the report ID of the multitouch device */
109 __s16 inputmode; /* InputMode HID feature, -1 if non-existent */
110 __s16 inputmode_index; /* InputMode HID feature index in the report */
111 __s16 maxcontact_report_id; /* Maximum Contact Number HID feature,
112 -1 if non-existent */
113 __u8 inputmode_value; /* InputMode HID feature value */
114 __u8 num_received; /* how many contacts we received */
115 __u8 num_expected; /* expected last contact index */
117 __u8 touches_by_report; /* how many touches are present in one report:
118 * 1 means we should use a serial protocol
119 * > 1 means hybrid (multitouch) protocol */
120 __u8 buttons_count; /* number of physical buttons per touchpad */
121 bool is_buttonpad; /* is this device a button pad? */
122 bool serial_maybe; /* need to check for serial protocol */
123 bool curvalid; /* is the current contact valid? */
124 unsigned mt_flags; /* flags to pass to input-mt */
127 static void mt_post_parse_default_settings(struct mt_device *td);
128 static void mt_post_parse(struct mt_device *td);
130 /* classes of device behavior */
131 #define MT_CLS_DEFAULT 0x0001
133 #define MT_CLS_SERIAL 0x0002
134 #define MT_CLS_CONFIDENCE 0x0003
135 #define MT_CLS_CONFIDENCE_CONTACT_ID 0x0004
136 #define MT_CLS_CONFIDENCE_MINUS_ONE 0x0005
137 #define MT_CLS_DUAL_INRANGE_CONTACTID 0x0006
138 #define MT_CLS_DUAL_INRANGE_CONTACTNUMBER 0x0007
139 /* reserved 0x0008 */
140 #define MT_CLS_INRANGE_CONTACTNUMBER 0x0009
141 #define MT_CLS_NSMU 0x000a
142 /* reserved 0x0010 */
143 /* reserved 0x0011 */
144 #define MT_CLS_WIN_8 0x0012
145 #define MT_CLS_EXPORT_ALL_INPUTS 0x0013
147 /* vendor specific classes */
148 #define MT_CLS_3M 0x0101
149 /* reserved 0x0102 */
150 #define MT_CLS_EGALAX 0x0103
151 #define MT_CLS_EGALAX_SERIAL 0x0104
152 #define MT_CLS_TOPSEED 0x0105
153 #define MT_CLS_PANASONIC 0x0106
154 #define MT_CLS_FLATFROG 0x0107
155 #define MT_CLS_GENERALTOUCH_TWOFINGERS 0x0108
156 #define MT_CLS_GENERALTOUCH_PWT_TENFINGERS 0x0109
157 #define MT_CLS_VTL 0x0110
159 #define MT_DEFAULT_MAXCONTACT 10
160 #define MT_MAX_MAXCONTACT 250
162 #define MT_USB_DEVICE(v, p) HID_DEVICE(BUS_USB, HID_GROUP_MULTITOUCH, v, p)
163 #define MT_BT_DEVICE(v, p) HID_DEVICE(BUS_BLUETOOTH, HID_GROUP_MULTITOUCH, v, p)
166 * these device-dependent functions determine what slot corresponds
167 * to a valid contact that was just read.
170 static int cypress_compute_slot(struct mt_device *td)
172 if (td->curdata.contactid != 0 || td->num_received == 0)
173 return td->curdata.contactid;
178 static struct mt_class mt_classes[] = {
179 { .name = MT_CLS_DEFAULT,
180 .quirks = MT_QUIRK_ALWAYS_VALID |
181 MT_QUIRK_CONTACT_CNT_ACCURATE },
182 { .name = MT_CLS_NSMU,
183 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP },
184 { .name = MT_CLS_SERIAL,
185 .quirks = MT_QUIRK_ALWAYS_VALID},
186 { .name = MT_CLS_CONFIDENCE,
187 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE },
188 { .name = MT_CLS_CONFIDENCE_CONTACT_ID,
189 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE |
190 MT_QUIRK_SLOT_IS_CONTACTID },
191 { .name = MT_CLS_CONFIDENCE_MINUS_ONE,
192 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE |
193 MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE },
194 { .name = MT_CLS_DUAL_INRANGE_CONTACTID,
195 .quirks = MT_QUIRK_VALID_IS_INRANGE |
196 MT_QUIRK_SLOT_IS_CONTACTID,
198 { .name = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
199 .quirks = MT_QUIRK_VALID_IS_INRANGE |
200 MT_QUIRK_SLOT_IS_CONTACTNUMBER,
202 { .name = MT_CLS_INRANGE_CONTACTNUMBER,
203 .quirks = MT_QUIRK_VALID_IS_INRANGE |
204 MT_QUIRK_SLOT_IS_CONTACTNUMBER },
205 { .name = MT_CLS_WIN_8,
206 .quirks = MT_QUIRK_ALWAYS_VALID |
207 MT_QUIRK_IGNORE_DUPLICATES |
209 MT_QUIRK_CONTACT_CNT_ACCURATE },
210 { .name = MT_CLS_EXPORT_ALL_INPUTS,
211 .quirks = MT_QUIRK_ALWAYS_VALID |
212 MT_QUIRK_CONTACT_CNT_ACCURATE,
213 .export_all_inputs = true },
216 * vendor specific classes
219 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE |
220 MT_QUIRK_SLOT_IS_CONTACTID,
226 { .name = MT_CLS_EGALAX,
227 .quirks = MT_QUIRK_SLOT_IS_CONTACTID |
228 MT_QUIRK_VALID_IS_INRANGE,
232 { .name = MT_CLS_EGALAX_SERIAL,
233 .quirks = MT_QUIRK_SLOT_IS_CONTACTID |
234 MT_QUIRK_ALWAYS_VALID,
238 { .name = MT_CLS_TOPSEED,
239 .quirks = MT_QUIRK_ALWAYS_VALID,
243 { .name = MT_CLS_PANASONIC,
244 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP,
246 { .name = MT_CLS_GENERALTOUCH_TWOFINGERS,
247 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP |
248 MT_QUIRK_VALID_IS_INRANGE |
249 MT_QUIRK_SLOT_IS_CONTACTID,
252 { .name = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
253 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP |
254 MT_QUIRK_SLOT_IS_CONTACTID
257 { .name = MT_CLS_FLATFROG,
258 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP |
263 { .name = MT_CLS_VTL,
264 .quirks = MT_QUIRK_ALWAYS_VALID |
265 MT_QUIRK_CONTACT_CNT_ACCURATE |
266 MT_QUIRK_FORCE_GET_FEATURE,
271 static ssize_t mt_show_quirks(struct device *dev,
272 struct device_attribute *attr,
275 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
276 struct mt_device *td = hid_get_drvdata(hdev);
278 return sprintf(buf, "%u\n", td->mtclass.quirks);
281 static ssize_t mt_set_quirks(struct device *dev,
282 struct device_attribute *attr,
283 const char *buf, size_t count)
285 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
286 struct mt_device *td = hid_get_drvdata(hdev);
290 if (kstrtoul(buf, 0, &val))
293 td->mtclass.quirks = val;
295 if (td->cc_index < 0)
296 td->mtclass.quirks &= ~MT_QUIRK_CONTACT_CNT_ACCURATE;
301 static DEVICE_ATTR(quirks, S_IWUSR | S_IRUGO, mt_show_quirks, mt_set_quirks);
303 static struct attribute *sysfs_attrs[] = {
304 &dev_attr_quirks.attr,
308 static struct attribute_group mt_attribute_group = {
312 static void mt_get_feature(struct hid_device *hdev, struct hid_report *report)
314 struct mt_device *td = hid_get_drvdata(hdev);
315 int ret, size = hid_report_len(report);
319 * Only fetch the feature report if initial reports are not already
320 * been retrieved. Currently this is only done for Windows 8 touch
323 if (!(hdev->quirks & HID_QUIRK_NO_INIT_REPORTS))
325 if (td->mtclass.name != MT_CLS_WIN_8)
328 buf = hid_alloc_report_buf(report, GFP_KERNEL);
332 ret = hid_hw_raw_request(hdev, report->id, buf, size,
333 HID_FEATURE_REPORT, HID_REQ_GET_REPORT);
335 dev_warn(&hdev->dev, "failed to fetch feature %d\n",
338 ret = hid_report_raw_event(hdev, HID_FEATURE_REPORT, buf,
341 dev_warn(&hdev->dev, "failed to report feature\n");
347 static void mt_feature_mapping(struct hid_device *hdev,
348 struct hid_field *field, struct hid_usage *usage)
350 struct mt_device *td = hid_get_drvdata(hdev);
352 switch (usage->hid) {
353 case HID_DG_INPUTMODE:
354 /* Ignore if value index is out of bounds. */
355 if (usage->usage_index >= field->report_count) {
356 dev_err(&hdev->dev, "HID_DG_INPUTMODE out of range\n");
360 if (td->inputmode < 0) {
361 td->inputmode = field->report->id;
362 td->inputmode_index = usage->usage_index;
365 * Some elan panels wrongly declare 2 input mode
366 * features, and silently ignore when we set the
367 * value in the second field. Skip the second feature
368 * and hope for the best.
371 "Ignoring the extra HID_DG_INPUTMODE\n");
375 case HID_DG_CONTACTMAX:
376 mt_get_feature(hdev, field->report);
378 td->maxcontact_report_id = field->report->id;
379 td->maxcontacts = field->value[0];
380 if (!td->maxcontacts &&
381 field->logical_maximum <= MT_MAX_MAXCONTACT)
382 td->maxcontacts = field->logical_maximum;
383 if (td->mtclass.maxcontacts)
384 /* check if the maxcontacts is given by the class */
385 td->maxcontacts = td->mtclass.maxcontacts;
388 case HID_DG_BUTTONTYPE:
389 if (usage->usage_index >= field->report_count) {
390 dev_err(&hdev->dev, "HID_DG_BUTTONTYPE out of range\n");
394 mt_get_feature(hdev, field->report);
395 if (field->value[usage->usage_index] == MT_BUTTONTYPE_CLICKPAD)
396 td->is_buttonpad = true;
400 /* Retrieve the Win8 blob once to enable some devices */
401 if (usage->usage_index == 0)
402 mt_get_feature(hdev, field->report);
407 static void set_abs(struct input_dev *input, unsigned int code,
408 struct hid_field *field, int snratio)
410 int fmin = field->logical_minimum;
411 int fmax = field->logical_maximum;
412 int fuzz = snratio ? (fmax - fmin) / snratio : 0;
413 input_set_abs_params(input, code, fmin, fmax, fuzz, 0);
414 input_abs_set_res(input, code, hidinput_calc_abs_res(field, code));
417 static void mt_store_field(struct hid_usage *usage, struct mt_device *td,
418 struct hid_input *hi)
420 struct mt_fields *f = td->fields;
422 if (f->length >= HID_MAX_FIELDS)
425 f->usages[f->length++] = usage->hid;
428 static int mt_touch_input_mapping(struct hid_device *hdev, struct hid_input *hi,
429 struct hid_field *field, struct hid_usage *usage,
430 unsigned long **bit, int *max)
432 struct mt_device *td = hid_get_drvdata(hdev);
433 struct mt_class *cls = &td->mtclass;
435 struct hid_usage *prev_usage = NULL;
437 if (field->application == HID_DG_TOUCHSCREEN)
438 td->mt_flags |= INPUT_MT_DIRECT;
441 * Model touchscreens providing buttons as touchpads.
443 if (field->application == HID_DG_TOUCHPAD ||
444 (usage->hid & HID_USAGE_PAGE) == HID_UP_BUTTON) {
445 td->mt_flags |= INPUT_MT_POINTER;
446 td->inputmode_value = MT_INPUTMODE_TOUCHPAD;
449 /* count the buttons on touchpads */
450 if ((usage->hid & HID_USAGE_PAGE) == HID_UP_BUTTON)
453 /* Only map fields from TouchScreen or TouchPad collections.
454 * We need to ignore fields that belong to other collections
455 * such as Mouse that might have the same GenericDesktop usages. */
456 if (field->application == HID_DG_TOUCHSCREEN)
457 set_bit(INPUT_PROP_DIRECT, hi->input->propbit);
458 else if (field->application == HID_DG_TOUCHPAD)
459 set_bit(INPUT_PROP_POINTER, hi->input->propbit);
463 if (usage->usage_index)
464 prev_usage = &field->usage[usage->usage_index - 1];
466 switch (usage->hid & HID_USAGE_PAGE) {
469 switch (usage->hid) {
471 if (prev_usage && (prev_usage->hid == usage->hid)) {
472 hid_map_usage(hi, usage, bit, max,
473 EV_ABS, ABS_MT_TOOL_X);
474 set_abs(hi->input, ABS_MT_TOOL_X, field,
477 hid_map_usage(hi, usage, bit, max,
478 EV_ABS, ABS_MT_POSITION_X);
479 set_abs(hi->input, ABS_MT_POSITION_X, field,
483 mt_store_field(usage, td, hi);
486 if (prev_usage && (prev_usage->hid == usage->hid)) {
487 hid_map_usage(hi, usage, bit, max,
488 EV_ABS, ABS_MT_TOOL_Y);
489 set_abs(hi->input, ABS_MT_TOOL_Y, field,
492 hid_map_usage(hi, usage, bit, max,
493 EV_ABS, ABS_MT_POSITION_Y);
494 set_abs(hi->input, ABS_MT_POSITION_Y, field,
498 mt_store_field(usage, td, hi);
503 case HID_UP_DIGITIZER:
504 switch (usage->hid) {
506 if (cls->quirks & MT_QUIRK_HOVERING) {
507 hid_map_usage(hi, usage, bit, max,
508 EV_ABS, ABS_MT_DISTANCE);
509 input_set_abs_params(hi->input,
510 ABS_MT_DISTANCE, 0, 1, 0, 0);
512 mt_store_field(usage, td, hi);
514 case HID_DG_CONFIDENCE:
515 mt_store_field(usage, td, hi);
517 case HID_DG_TIPSWITCH:
518 hid_map_usage(hi, usage, bit, max, EV_KEY, BTN_TOUCH);
519 input_set_capability(hi->input, EV_KEY, BTN_TOUCH);
520 mt_store_field(usage, td, hi);
522 case HID_DG_CONTACTID:
523 mt_store_field(usage, td, hi);
524 td->touches_by_report++;
525 td->mt_report_id = field->report->id;
528 hid_map_usage(hi, usage, bit, max,
529 EV_ABS, ABS_MT_TOUCH_MAJOR);
530 if (!(cls->quirks & MT_QUIRK_NO_AREA))
531 set_abs(hi->input, ABS_MT_TOUCH_MAJOR, field,
533 mt_store_field(usage, td, hi);
536 hid_map_usage(hi, usage, bit, max,
537 EV_ABS, ABS_MT_TOUCH_MINOR);
538 if (!(cls->quirks & MT_QUIRK_NO_AREA)) {
539 set_abs(hi->input, ABS_MT_TOUCH_MINOR, field,
541 input_set_abs_params(hi->input,
542 ABS_MT_ORIENTATION, 0, 1, 0, 0);
544 mt_store_field(usage, td, hi);
546 case HID_DG_TIPPRESSURE:
547 hid_map_usage(hi, usage, bit, max,
548 EV_ABS, ABS_MT_PRESSURE);
549 set_abs(hi->input, ABS_MT_PRESSURE, field,
551 mt_store_field(usage, td, hi);
553 case HID_DG_CONTACTCOUNT:
554 /* Ignore if indexes are out of bounds. */
555 if (field->index >= field->report->maxfield ||
556 usage->usage_index >= field->report_count)
558 td->cc_index = field->index;
559 td->cc_value_index = usage->usage_index;
561 case HID_DG_CONTACTMAX:
562 /* we don't set td->last_slot_field as contactcount and
563 * contact max are global to the report */
566 /* Legacy devices use TIPSWITCH and not TOUCH.
567 * Let's just ignore this field. */
570 /* let hid-input decide for the others */
574 code = BTN_MOUSE + ((usage->hid - 1) & HID_USAGE);
575 hid_map_usage(hi, usage, bit, max, EV_KEY, code);
576 input_set_capability(hi->input, EV_KEY, code);
580 /* we do not want to map these: no input-oriented meaning */
587 static int mt_touch_input_mapped(struct hid_device *hdev, struct hid_input *hi,
588 struct hid_field *field, struct hid_usage *usage,
589 unsigned long **bit, int *max)
591 if (usage->type == EV_KEY || usage->type == EV_ABS)
592 set_bit(usage->type, hi->input->evbit);
597 static int mt_compute_slot(struct mt_device *td, struct input_dev *input)
599 __s32 quirks = td->mtclass.quirks;
601 if (quirks & MT_QUIRK_SLOT_IS_CONTACTID)
602 return td->curdata.contactid;
604 if (quirks & MT_QUIRK_CYPRESS)
605 return cypress_compute_slot(td);
607 if (quirks & MT_QUIRK_SLOT_IS_CONTACTNUMBER)
608 return td->num_received;
610 if (quirks & MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE)
611 return td->curdata.contactid - 1;
613 return input_mt_get_slot_by_key(input, td->curdata.contactid);
617 * this function is called when a whole contact has been processed,
618 * so that it can assign it to a slot and store the data there
620 static void mt_complete_slot(struct mt_device *td, struct input_dev *input)
622 if ((td->mtclass.quirks & MT_QUIRK_CONTACT_CNT_ACCURATE) &&
623 td->num_received >= td->num_expected)
626 if (td->curvalid || (td->mtclass.quirks & MT_QUIRK_ALWAYS_VALID)) {
627 int slotnum = mt_compute_slot(td, input);
628 struct mt_slot *s = &td->curdata;
629 struct input_mt *mt = input->mt;
631 if (slotnum < 0 || slotnum >= td->maxcontacts)
634 if ((td->mtclass.quirks & MT_QUIRK_IGNORE_DUPLICATES) && mt) {
635 struct input_mt_slot *slot = &mt->slots[slotnum];
636 if (input_mt_is_active(slot) &&
637 input_mt_is_used(mt, slot))
641 input_mt_slot(input, slotnum);
642 input_mt_report_slot_state(input, MT_TOOL_FINGER,
643 s->touch_state || s->inrange_state);
644 if (s->touch_state || s->inrange_state) {
645 /* this finger is in proximity of the sensor */
646 int wide = (s->w > s->h);
647 /* divided by two to match visual scale of touch */
648 int major = max(s->w, s->h) >> 1;
649 int minor = min(s->w, s->h) >> 1;
651 input_event(input, EV_ABS, ABS_MT_POSITION_X, s->x);
652 input_event(input, EV_ABS, ABS_MT_POSITION_Y, s->y);
653 input_event(input, EV_ABS, ABS_MT_TOOL_X, s->cx);
654 input_event(input, EV_ABS, ABS_MT_TOOL_Y, s->cy);
655 input_event(input, EV_ABS, ABS_MT_DISTANCE,
657 input_event(input, EV_ABS, ABS_MT_ORIENTATION, wide);
658 input_event(input, EV_ABS, ABS_MT_PRESSURE, s->p);
659 input_event(input, EV_ABS, ABS_MT_TOUCH_MAJOR, major);
660 input_event(input, EV_ABS, ABS_MT_TOUCH_MINOR, minor);
668 * this function is called when a whole packet has been received and processed,
669 * so that it can decide what to send to the input layer.
671 static void mt_sync_frame(struct mt_device *td, struct input_dev *input)
673 input_mt_sync_frame(input);
675 td->num_received = 0;
678 static int mt_touch_event(struct hid_device *hid, struct hid_field *field,
679 struct hid_usage *usage, __s32 value)
681 /* we will handle the hidinput part later, now remains hiddev */
682 if (hid->claimed & HID_CLAIMED_HIDDEV && hid->hiddev_hid_event)
683 hid->hiddev_hid_event(hid, field, usage, value);
688 static void mt_process_mt_event(struct hid_device *hid, struct hid_field *field,
689 struct hid_usage *usage, __s32 value)
691 struct mt_device *td = hid_get_drvdata(hid);
692 __s32 quirks = td->mtclass.quirks;
693 struct input_dev *input = field->hidinput->input;
695 if (hid->claimed & HID_CLAIMED_INPUT) {
696 switch (usage->hid) {
698 if (quirks & MT_QUIRK_VALID_IS_INRANGE)
699 td->curvalid = value;
700 if (quirks & MT_QUIRK_HOVERING)
701 td->curdata.inrange_state = value;
703 case HID_DG_TIPSWITCH:
704 if (quirks & MT_QUIRK_NOT_SEEN_MEANS_UP)
705 td->curvalid = value;
706 td->curdata.touch_state = value;
708 case HID_DG_CONFIDENCE:
709 if (quirks & MT_QUIRK_VALID_IS_CONFIDENCE)
710 td->curvalid = value;
712 case HID_DG_CONTACTID:
713 td->curdata.contactid = value;
715 case HID_DG_TIPPRESSURE:
716 td->curdata.p = value;
719 if (usage->code == ABS_MT_TOOL_X)
720 td->curdata.cx = value;
722 td->curdata.x = value;
725 if (usage->code == ABS_MT_TOOL_Y)
726 td->curdata.cy = value;
728 td->curdata.y = value;
731 td->curdata.w = value;
734 td->curdata.h = value;
736 case HID_DG_CONTACTCOUNT:
744 input_event(input, usage->type, usage->code,
749 if (usage->usage_index + 1 == field->report_count) {
750 /* we only take into account the last report. */
751 if (usage->hid == td->last_slot_field)
752 mt_complete_slot(td, field->hidinput->input);
758 static void mt_touch_report(struct hid_device *hid, struct hid_report *report)
760 struct mt_device *td = hid_get_drvdata(hid);
761 struct hid_field *field;
766 * Includes multi-packet support where subsequent
767 * packets are sent with zero contactcount.
769 if (td->cc_index >= 0) {
770 struct hid_field *field = report->field[td->cc_index];
771 int value = field->value[td->cc_value_index];
773 td->num_expected = value;
776 for (r = 0; r < report->maxfield; r++) {
777 field = report->field[r];
778 count = field->report_count;
780 if (!(HID_MAIN_ITEM_VARIABLE & field->flags))
783 for (n = 0; n < count; n++)
784 mt_process_mt_event(hid, field, &field->usage[n],
788 if (td->num_received >= td->num_expected)
789 mt_sync_frame(td, report->field[0]->hidinput->input);
792 static int mt_touch_input_configured(struct hid_device *hdev,
793 struct hid_input *hi)
795 struct mt_device *td = hid_get_drvdata(hdev);
796 struct mt_class *cls = &td->mtclass;
797 struct input_dev *input = hi->input;
800 if (!td->maxcontacts)
801 td->maxcontacts = MT_DEFAULT_MAXCONTACT;
804 if (td->serial_maybe)
805 mt_post_parse_default_settings(td);
807 if (cls->is_indirect)
808 td->mt_flags |= INPUT_MT_POINTER;
810 if (cls->quirks & MT_QUIRK_NOT_SEEN_MEANS_UP)
811 td->mt_flags |= INPUT_MT_DROP_UNUSED;
813 /* check for clickpads */
814 if ((td->mt_flags & INPUT_MT_POINTER) && (td->buttons_count == 1))
815 td->is_buttonpad = true;
817 if (td->is_buttonpad)
818 __set_bit(INPUT_PROP_BUTTONPAD, input->propbit);
820 ret = input_mt_init_slots(input, td->maxcontacts, td->mt_flags);
828 static int mt_input_mapping(struct hid_device *hdev, struct hid_input *hi,
829 struct hid_field *field, struct hid_usage *usage,
830 unsigned long **bit, int *max)
832 struct mt_device *td = hid_get_drvdata(hdev);
835 * If mtclass.export_all_inputs is not set, only map fields from
836 * TouchScreen or TouchPad collections. We need to ignore fields
837 * that belong to other collections such as Mouse that might have
838 * the same GenericDesktop usages.
840 if (!td->mtclass.export_all_inputs &&
841 field->application != HID_DG_TOUCHSCREEN &&
842 field->application != HID_DG_PEN &&
843 field->application != HID_DG_TOUCHPAD)
847 * some egalax touchscreens have "application == HID_DG_TOUCHSCREEN"
849 * The check for mt_report_id ensures we don't process
850 * HID_DG_CONTACTCOUNT from the pen report as it is outside the physical
851 * collection, but within the report ID.
853 if (field->physical == HID_DG_STYLUS)
855 else if ((field->physical == 0) &&
856 (field->report->id != td->mt_report_id) &&
857 (td->mt_report_id != -1))
860 if (field->application == HID_DG_TOUCHSCREEN ||
861 field->application == HID_DG_TOUCHPAD)
862 return mt_touch_input_mapping(hdev, hi, field, usage, bit, max);
864 /* let hid-core decide for the others */
868 static int mt_input_mapped(struct hid_device *hdev, struct hid_input *hi,
869 struct hid_field *field, struct hid_usage *usage,
870 unsigned long **bit, int *max)
873 * some egalax touchscreens have "application == HID_DG_TOUCHSCREEN"
876 if (field->physical == HID_DG_STYLUS)
879 if (field->application == HID_DG_TOUCHSCREEN ||
880 field->application == HID_DG_TOUCHPAD)
881 return mt_touch_input_mapped(hdev, hi, field, usage, bit, max);
883 /* let hid-core decide for the others */
887 static int mt_event(struct hid_device *hid, struct hid_field *field,
888 struct hid_usage *usage, __s32 value)
890 struct mt_device *td = hid_get_drvdata(hid);
892 if (field->report->id == td->mt_report_id)
893 return mt_touch_event(hid, field, usage, value);
898 static void mt_report(struct hid_device *hid, struct hid_report *report)
900 struct mt_device *td = hid_get_drvdata(hid);
901 struct hid_field *field = report->field[0];
903 if (!(hid->claimed & HID_CLAIMED_INPUT))
906 if (report->id == td->mt_report_id)
907 return mt_touch_report(hid, report);
909 if (field && field->hidinput && field->hidinput->input)
910 input_sync(field->hidinput->input);
913 static void mt_set_input_mode(struct hid_device *hdev)
915 struct mt_device *td = hid_get_drvdata(hdev);
916 struct hid_report *r;
917 struct hid_report_enum *re;
918 struct mt_class *cls = &td->mtclass;
922 if (td->inputmode < 0)
925 re = &(hdev->report_enum[HID_FEATURE_REPORT]);
926 r = re->report_id_hash[td->inputmode];
928 if (cls->quirks & MT_QUIRK_FORCE_GET_FEATURE) {
929 report_len = hid_report_len(r);
930 buf = hid_alloc_report_buf(r, GFP_KERNEL);
932 hid_err(hdev, "failed to allocate buffer for report\n");
935 hid_hw_raw_request(hdev, r->id, buf, report_len,
940 r->field[0]->value[td->inputmode_index] = td->inputmode_value;
941 hid_hw_request(hdev, r, HID_REQ_SET_REPORT);
945 static void mt_set_maxcontacts(struct hid_device *hdev)
947 struct mt_device *td = hid_get_drvdata(hdev);
948 struct hid_report *r;
949 struct hid_report_enum *re;
952 if (td->maxcontact_report_id < 0)
955 if (!td->mtclass.maxcontacts)
958 re = &hdev->report_enum[HID_FEATURE_REPORT];
959 r = re->report_id_hash[td->maxcontact_report_id];
961 max = td->mtclass.maxcontacts;
962 fieldmax = r->field[0]->logical_maximum;
963 max = min(fieldmax, max);
964 if (r->field[0]->value[0] != max) {
965 r->field[0]->value[0] = max;
966 hid_hw_request(hdev, r, HID_REQ_SET_REPORT);
971 static void mt_post_parse_default_settings(struct mt_device *td)
973 __s32 quirks = td->mtclass.quirks;
975 /* unknown serial device needs special quirks */
976 if (td->touches_by_report == 1) {
977 quirks |= MT_QUIRK_ALWAYS_VALID;
978 quirks &= ~MT_QUIRK_NOT_SEEN_MEANS_UP;
979 quirks &= ~MT_QUIRK_VALID_IS_INRANGE;
980 quirks &= ~MT_QUIRK_VALID_IS_CONFIDENCE;
981 quirks &= ~MT_QUIRK_CONTACT_CNT_ACCURATE;
984 td->mtclass.quirks = quirks;
987 static void mt_post_parse(struct mt_device *td)
989 struct mt_fields *f = td->fields;
990 struct mt_class *cls = &td->mtclass;
992 if (td->touches_by_report > 0) {
993 int field_count_per_touch = f->length / td->touches_by_report;
994 td->last_slot_field = f->usages[field_count_per_touch - 1];
997 if (td->cc_index < 0)
998 cls->quirks &= ~MT_QUIRK_CONTACT_CNT_ACCURATE;
1001 static int mt_input_configured(struct hid_device *hdev, struct hid_input *hi)
1003 struct mt_device *td = hid_get_drvdata(hdev);
1005 const char *suffix = NULL;
1006 struct hid_field *field = hi->report->field[0];
1009 if (hi->report->id == td->mt_report_id) {
1010 ret = mt_touch_input_configured(hdev, hi);
1016 * some egalax touchscreens have "application == HID_DG_TOUCHSCREEN"
1017 * for the stylus. Check this first, and then rely on the application
1020 if (hi->report->field[0]->physical == HID_DG_STYLUS) {
1022 /* force BTN_STYLUS to allow tablet matching in udev */
1023 __set_bit(BTN_STYLUS, hi->input->keybit);
1025 switch (field->application) {
1026 case HID_GD_KEYBOARD:
1027 suffix = "Keyboard";
1037 /* force BTN_STYLUS to allow tablet matching in udev */
1038 __set_bit(BTN_STYLUS, hi->input->keybit);
1040 case HID_DG_TOUCHSCREEN:
1041 /* we do not set suffix = "Touchscreen" */
1043 case HID_DG_TOUCHPAD:
1044 suffix = "Touchpad";
1046 case HID_GD_SYSTEM_CONTROL:
1047 suffix = "System Control";
1049 case HID_CP_CONSUMER_CONTROL:
1050 suffix = "Consumer Control";
1059 name = devm_kzalloc(&hi->input->dev,
1060 strlen(hdev->name) + strlen(suffix) + 2,
1063 sprintf(name, "%s %s", hdev->name, suffix);
1064 hi->input->name = name;
1071 static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id)
1074 struct mt_device *td;
1075 struct mt_class *mtclass = mt_classes; /* MT_CLS_DEFAULT */
1077 for (i = 0; mt_classes[i].name ; i++) {
1078 if (id->driver_data == mt_classes[i].name) {
1079 mtclass = &(mt_classes[i]);
1084 /* This allows the driver to correctly support devices
1085 * that emit events over several HID messages.
1087 hdev->quirks |= HID_QUIRK_NO_INPUT_SYNC;
1090 * This allows the driver to handle different input sensors
1091 * that emits events through different reports on the same HID
1094 hdev->quirks |= HID_QUIRK_MULTI_INPUT;
1095 hdev->quirks |= HID_QUIRK_NO_EMPTY_INPUT;
1098 * Handle special quirks for Windows 8 certified devices.
1100 if (id->group == HID_GROUP_MULTITOUCH_WIN_8)
1102 * Some multitouch screens do not like to be polled for input
1103 * reports. Fortunately, the Win8 spec says that all touches
1104 * should be sent during each report, making the initialization
1105 * of input reports unnecessary.
1107 * In addition some touchpads do not behave well if we read
1108 * all feature reports from them. Instead we prevent
1109 * initial report fetching and then selectively fetch each
1110 * report we are interested in.
1112 hdev->quirks |= HID_QUIRK_NO_INIT_REPORTS;
1114 td = devm_kzalloc(&hdev->dev, sizeof(struct mt_device), GFP_KERNEL);
1116 dev_err(&hdev->dev, "cannot allocate multitouch data\n");
1119 td->mtclass = *mtclass;
1121 td->maxcontact_report_id = -1;
1122 td->inputmode_value = MT_INPUTMODE_TOUCHSCREEN;
1124 td->mt_report_id = -1;
1125 hid_set_drvdata(hdev, td);
1127 td->fields = devm_kzalloc(&hdev->dev, sizeof(struct mt_fields),
1130 dev_err(&hdev->dev, "cannot allocate multitouch fields data\n");
1134 if (id->vendor == HID_ANY_ID && id->product == HID_ANY_ID)
1135 td->serial_maybe = true;
1137 ret = hid_parse(hdev);
1141 ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
1145 ret = sysfs_create_group(&hdev->dev.kobj, &mt_attribute_group);
1147 mt_set_maxcontacts(hdev);
1148 mt_set_input_mode(hdev);
1150 /* release .fields memory as it is not used anymore */
1151 devm_kfree(&hdev->dev, td->fields);
1158 static int mt_reset_resume(struct hid_device *hdev)
1160 mt_set_maxcontacts(hdev);
1161 mt_set_input_mode(hdev);
1165 static int mt_resume(struct hid_device *hdev)
1167 /* Some Elan legacy devices require SET_IDLE to be set on resume.
1168 * It should be safe to send it to other devices too.
1169 * Tested on 3M, Stantum, Cypress, Zytronic, eGalax, and Elan panels. */
1171 hid_hw_idle(hdev, 0, 0, HID_REQ_SET_IDLE);
1177 static void mt_remove(struct hid_device *hdev)
1179 sysfs_remove_group(&hdev->dev.kobj, &mt_attribute_group);
1184 * This list contains only:
1185 * - VID/PID of products not working with the default multitouch handling
1186 * - 2 generic rules.
1187 * So there is no point in adding here any device with MT_CLS_DEFAULT.
1189 static const struct hid_device_id mt_devices[] = {
1192 { .driver_data = MT_CLS_3M,
1193 MT_USB_DEVICE(USB_VENDOR_ID_3M,
1194 USB_DEVICE_ID_3M1968) },
1195 { .driver_data = MT_CLS_3M,
1196 MT_USB_DEVICE(USB_VENDOR_ID_3M,
1197 USB_DEVICE_ID_3M2256) },
1198 { .driver_data = MT_CLS_3M,
1199 MT_USB_DEVICE(USB_VENDOR_ID_3M,
1200 USB_DEVICE_ID_3M3266) },
1203 { .driver_data = MT_CLS_EXPORT_ALL_INPUTS,
1204 MT_USB_DEVICE(USB_VENDOR_ID_ANTON,
1205 USB_DEVICE_ID_ANTON_TOUCH_PAD) },
1208 { .driver_data = MT_CLS_SERIAL,
1209 MT_USB_DEVICE(USB_VENDOR_ID_ATMEL,
1210 USB_DEVICE_ID_ATMEL_MXT_DIGITIZER) },
1212 /* Baanto multitouch devices */
1213 { .driver_data = MT_CLS_NSMU,
1214 MT_USB_DEVICE(USB_VENDOR_ID_BAANTO,
1215 USB_DEVICE_ID_BAANTO_MT_190W2) },
1218 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
1219 MT_USB_DEVICE(USB_VENDOR_ID_CANDO,
1220 USB_DEVICE_ID_CANDO_MULTI_TOUCH) },
1221 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
1222 MT_USB_DEVICE(USB_VENDOR_ID_CANDO,
1223 USB_DEVICE_ID_CANDO_MULTI_TOUCH_15_6) },
1225 /* Chunghwa Telecom touch panels */
1226 { .driver_data = MT_CLS_NSMU,
1227 MT_USB_DEVICE(USB_VENDOR_ID_CHUNGHWAT,
1228 USB_DEVICE_ID_CHUNGHWAT_MULTITOUCH) },
1230 /* CJTouch panels */
1231 { .driver_data = MT_CLS_NSMU,
1232 MT_USB_DEVICE(USB_VENDOR_ID_CJTOUCH,
1233 USB_DEVICE_ID_CJTOUCH_MULTI_TOUCH_0020) },
1234 { .driver_data = MT_CLS_NSMU,
1235 MT_USB_DEVICE(USB_VENDOR_ID_CJTOUCH,
1236 USB_DEVICE_ID_CJTOUCH_MULTI_TOUCH_0040) },
1238 /* CVTouch panels */
1239 { .driver_data = MT_CLS_NSMU,
1240 MT_USB_DEVICE(USB_VENDOR_ID_CVTOUCH,
1241 USB_DEVICE_ID_CVTOUCH_SCREEN) },
1243 /* eGalax devices (resistive) */
1244 { .driver_data = MT_CLS_EGALAX,
1245 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1246 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_480D) },
1247 { .driver_data = MT_CLS_EGALAX,
1248 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1249 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_480E) },
1251 /* eGalax devices (capacitive) */
1252 { .driver_data = MT_CLS_EGALAX_SERIAL,
1253 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1254 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7207) },
1255 { .driver_data = MT_CLS_EGALAX,
1256 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1257 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_720C) },
1258 { .driver_data = MT_CLS_EGALAX_SERIAL,
1259 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1260 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7224) },
1261 { .driver_data = MT_CLS_EGALAX_SERIAL,
1262 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1263 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_722A) },
1264 { .driver_data = MT_CLS_EGALAX_SERIAL,
1265 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1266 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_725E) },
1267 { .driver_data = MT_CLS_EGALAX_SERIAL,
1268 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1269 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7262) },
1270 { .driver_data = MT_CLS_EGALAX,
1271 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1272 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_726B) },
1273 { .driver_data = MT_CLS_EGALAX,
1274 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1275 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72A1) },
1276 { .driver_data = MT_CLS_EGALAX_SERIAL,
1277 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1278 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72AA) },
1279 { .driver_data = MT_CLS_EGALAX,
1280 HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
1281 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72C4) },
1282 { .driver_data = MT_CLS_EGALAX,
1283 HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
1284 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72D0) },
1285 { .driver_data = MT_CLS_EGALAX,
1286 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1287 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72FA) },
1288 { .driver_data = MT_CLS_EGALAX,
1289 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1290 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7302) },
1291 { .driver_data = MT_CLS_EGALAX_SERIAL,
1292 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1293 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7349) },
1294 { .driver_data = MT_CLS_EGALAX_SERIAL,
1295 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1296 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_73F7) },
1297 { .driver_data = MT_CLS_EGALAX_SERIAL,
1298 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1299 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_A001) },
1301 /* Elitegroup panel */
1302 { .driver_data = MT_CLS_SERIAL,
1303 MT_USB_DEVICE(USB_VENDOR_ID_ELITEGROUP,
1304 USB_DEVICE_ID_ELITEGROUP_05D8) },
1306 /* Flatfrog Panels */
1307 { .driver_data = MT_CLS_FLATFROG,
1308 MT_USB_DEVICE(USB_VENDOR_ID_FLATFROG,
1309 USB_DEVICE_ID_MULTITOUCH_3200) },
1311 /* FocalTech Panels */
1312 { .driver_data = MT_CLS_SERIAL,
1313 MT_USB_DEVICE(USB_VENDOR_ID_CYGNAL,
1314 USB_DEVICE_ID_FOCALTECH_FTXXXX_MULTITOUCH) },
1316 /* GeneralTouch panel */
1317 { .driver_data = MT_CLS_GENERALTOUCH_TWOFINGERS,
1318 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
1319 USB_DEVICE_ID_GENERAL_TOUCH_WIN7_TWOFINGERS) },
1320 { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
1321 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
1322 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PWT_TENFINGERS) },
1323 { .driver_data = MT_CLS_GENERALTOUCH_TWOFINGERS,
1324 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
1325 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_0101) },
1326 { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
1327 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
1328 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_0102) },
1329 { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
1330 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
1331 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_0106) },
1332 { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
1333 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
1334 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_010A) },
1335 { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
1336 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
1337 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_E100) },
1339 /* Gametel game controller */
1340 { .driver_data = MT_CLS_NSMU,
1341 MT_BT_DEVICE(USB_VENDOR_ID_FRUCTEL,
1342 USB_DEVICE_ID_GAMETEL_MT_MODE) },
1344 /* GoodTouch panels */
1345 { .driver_data = MT_CLS_NSMU,
1346 MT_USB_DEVICE(USB_VENDOR_ID_GOODTOUCH,
1347 USB_DEVICE_ID_GOODTOUCH_000f) },
1350 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID,
1351 MT_USB_DEVICE(USB_VENDOR_ID_HANVON_ALT,
1352 USB_DEVICE_ID_HANVON_ALT_MULTITOUCH) },
1354 /* Ilitek dual touch panel */
1355 { .driver_data = MT_CLS_NSMU,
1356 MT_USB_DEVICE(USB_VENDOR_ID_ILITEK,
1357 USB_DEVICE_ID_ILITEK_MULTITOUCH) },
1360 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
1361 MT_USB_DEVICE(USB_VENDOR_ID_ASUS,
1362 USB_DEVICE_ID_ASUS_T91MT)},
1363 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
1364 MT_USB_DEVICE(USB_VENDOR_ID_ASUS,
1365 USB_DEVICE_ID_ASUSTEK_MULTITOUCH_YFO) },
1366 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
1367 MT_USB_DEVICE(USB_VENDOR_ID_TURBOX,
1368 USB_DEVICE_ID_TURBOX_TOUCHSCREEN_MOSART) },
1370 /* Panasonic panels */
1371 { .driver_data = MT_CLS_PANASONIC,
1372 MT_USB_DEVICE(USB_VENDOR_ID_PANASONIC,
1373 USB_DEVICE_ID_PANABOARD_UBT780) },
1374 { .driver_data = MT_CLS_PANASONIC,
1375 MT_USB_DEVICE(USB_VENDOR_ID_PANASONIC,
1376 USB_DEVICE_ID_PANABOARD_UBT880) },
1379 { .driver_data = MT_CLS_NSMU,
1380 MT_USB_DEVICE(USB_VENDOR_ID_NOVATEK,
1381 USB_DEVICE_ID_NOVATEK_PCT) },
1383 /* PixArt optical touch screen */
1384 { .driver_data = MT_CLS_INRANGE_CONTACTNUMBER,
1385 MT_USB_DEVICE(USB_VENDOR_ID_PIXART,
1386 USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN) },
1387 { .driver_data = MT_CLS_INRANGE_CONTACTNUMBER,
1388 MT_USB_DEVICE(USB_VENDOR_ID_PIXART,
1389 USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN1) },
1390 { .driver_data = MT_CLS_INRANGE_CONTACTNUMBER,
1391 MT_USB_DEVICE(USB_VENDOR_ID_PIXART,
1392 USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN2) },
1394 /* PixCir-based panels */
1395 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID,
1396 MT_USB_DEVICE(USB_VENDOR_ID_CANDO,
1397 USB_DEVICE_ID_CANDO_PIXCIR_MULTI_TOUCH) },
1399 /* Quanta-based panels */
1400 { .driver_data = MT_CLS_CONFIDENCE_CONTACT_ID,
1401 MT_USB_DEVICE(USB_VENDOR_ID_QUANTA,
1402 USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3001) },
1404 /* Stantum panels */
1405 { .driver_data = MT_CLS_CONFIDENCE,
1406 MT_USB_DEVICE(USB_VENDOR_ID_STANTUM_STM,
1407 USB_DEVICE_ID_MTP_STM)},
1409 /* TopSeed panels */
1410 { .driver_data = MT_CLS_TOPSEED,
1411 MT_USB_DEVICE(USB_VENDOR_ID_TOPSEED2,
1412 USB_DEVICE_ID_TOPSEED2_PERIPAD_701) },
1414 /* Touch International panels */
1415 { .driver_data = MT_CLS_NSMU,
1416 MT_USB_DEVICE(USB_VENDOR_ID_TOUCH_INTL,
1417 USB_DEVICE_ID_TOUCH_INTL_MULTI_TOUCH) },
1420 { .driver_data = MT_CLS_NSMU,
1421 MT_USB_DEVICE(USB_VENDOR_ID_UNITEC,
1422 USB_DEVICE_ID_UNITEC_USB_TOUCH_0709) },
1423 { .driver_data = MT_CLS_NSMU,
1424 MT_USB_DEVICE(USB_VENDOR_ID_UNITEC,
1425 USB_DEVICE_ID_UNITEC_USB_TOUCH_0A19) },
1428 { .driver_data = MT_CLS_VTL,
1429 MT_USB_DEVICE(USB_VENDOR_ID_VTL,
1430 USB_DEVICE_ID_VTL_MULTITOUCH_FF3F) },
1432 /* Wistron panels */
1433 { .driver_data = MT_CLS_NSMU,
1434 MT_USB_DEVICE(USB_VENDOR_ID_WISTRON,
1435 USB_DEVICE_ID_WISTRON_OPTICAL_TOUCH) },
1438 { .driver_data = MT_CLS_NSMU,
1439 MT_USB_DEVICE(USB_VENDOR_ID_XAT,
1440 USB_DEVICE_ID_XAT_CSR) },
1443 { .driver_data = MT_CLS_NSMU,
1444 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1445 USB_DEVICE_ID_XIROKU_SPX) },
1446 { .driver_data = MT_CLS_NSMU,
1447 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1448 USB_DEVICE_ID_XIROKU_MPX) },
1449 { .driver_data = MT_CLS_NSMU,
1450 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1451 USB_DEVICE_ID_XIROKU_CSR) },
1452 { .driver_data = MT_CLS_NSMU,
1453 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1454 USB_DEVICE_ID_XIROKU_SPX1) },
1455 { .driver_data = MT_CLS_NSMU,
1456 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1457 USB_DEVICE_ID_XIROKU_MPX1) },
1458 { .driver_data = MT_CLS_NSMU,
1459 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1460 USB_DEVICE_ID_XIROKU_CSR1) },
1461 { .driver_data = MT_CLS_NSMU,
1462 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1463 USB_DEVICE_ID_XIROKU_SPX2) },
1464 { .driver_data = MT_CLS_NSMU,
1465 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1466 USB_DEVICE_ID_XIROKU_MPX2) },
1467 { .driver_data = MT_CLS_NSMU,
1468 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1469 USB_DEVICE_ID_XIROKU_CSR2) },
1471 /* Generic MT device */
1472 { HID_DEVICE(HID_BUS_ANY, HID_GROUP_MULTITOUCH, HID_ANY_ID, HID_ANY_ID) },
1474 /* Generic Win 8 certified MT device */
1475 { .driver_data = MT_CLS_WIN_8,
1476 HID_DEVICE(HID_BUS_ANY, HID_GROUP_MULTITOUCH_WIN_8,
1477 HID_ANY_ID, HID_ANY_ID) },
1480 MODULE_DEVICE_TABLE(hid, mt_devices);
1482 static const struct hid_usage_id mt_grabbed_usages[] = {
1483 { HID_ANY_ID, HID_ANY_ID, HID_ANY_ID },
1484 { HID_ANY_ID - 1, HID_ANY_ID - 1, HID_ANY_ID - 1}
1487 static struct hid_driver mt_driver = {
1488 .name = "hid-multitouch",
1489 .id_table = mt_devices,
1491 .remove = mt_remove,
1492 .input_mapping = mt_input_mapping,
1493 .input_mapped = mt_input_mapped,
1494 .input_configured = mt_input_configured,
1495 .feature_mapping = mt_feature_mapping,
1496 .usage_table = mt_grabbed_usages,
1498 .report = mt_report,
1500 .reset_resume = mt_reset_resume,
1501 .resume = mt_resume,
1504 module_hid_driver(mt_driver);