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;
402 static void set_abs(struct input_dev *input, unsigned int code,
403 struct hid_field *field, int snratio)
405 int fmin = field->logical_minimum;
406 int fmax = field->logical_maximum;
407 int fuzz = snratio ? (fmax - fmin) / snratio : 0;
408 input_set_abs_params(input, code, fmin, fmax, fuzz, 0);
409 input_abs_set_res(input, code, hidinput_calc_abs_res(field, code));
412 static void mt_store_field(struct hid_usage *usage, struct mt_device *td,
413 struct hid_input *hi)
415 struct mt_fields *f = td->fields;
417 if (f->length >= HID_MAX_FIELDS)
420 f->usages[f->length++] = usage->hid;
423 static int mt_touch_input_mapping(struct hid_device *hdev, struct hid_input *hi,
424 struct hid_field *field, struct hid_usage *usage,
425 unsigned long **bit, int *max)
427 struct mt_device *td = hid_get_drvdata(hdev);
428 struct mt_class *cls = &td->mtclass;
430 struct hid_usage *prev_usage = NULL;
432 if (field->application == HID_DG_TOUCHSCREEN)
433 td->mt_flags |= INPUT_MT_DIRECT;
436 * Model touchscreens providing buttons as touchpads.
438 if (field->application == HID_DG_TOUCHPAD ||
439 (usage->hid & HID_USAGE_PAGE) == HID_UP_BUTTON) {
440 td->mt_flags |= INPUT_MT_POINTER;
441 td->inputmode_value = MT_INPUTMODE_TOUCHPAD;
444 /* count the buttons on touchpads */
445 if ((usage->hid & HID_USAGE_PAGE) == HID_UP_BUTTON)
448 if (usage->usage_index)
449 prev_usage = &field->usage[usage->usage_index - 1];
451 switch (usage->hid & HID_USAGE_PAGE) {
454 switch (usage->hid) {
456 if (prev_usage && (prev_usage->hid == usage->hid)) {
457 hid_map_usage(hi, usage, bit, max,
458 EV_ABS, ABS_MT_TOOL_X);
459 set_abs(hi->input, ABS_MT_TOOL_X, field,
462 hid_map_usage(hi, usage, bit, max,
463 EV_ABS, ABS_MT_POSITION_X);
464 set_abs(hi->input, ABS_MT_POSITION_X, field,
468 mt_store_field(usage, td, hi);
471 if (prev_usage && (prev_usage->hid == usage->hid)) {
472 hid_map_usage(hi, usage, bit, max,
473 EV_ABS, ABS_MT_TOOL_Y);
474 set_abs(hi->input, ABS_MT_TOOL_Y, field,
477 hid_map_usage(hi, usage, bit, max,
478 EV_ABS, ABS_MT_POSITION_Y);
479 set_abs(hi->input, ABS_MT_POSITION_Y, field,
483 mt_store_field(usage, td, hi);
488 case HID_UP_DIGITIZER:
489 switch (usage->hid) {
491 if (cls->quirks & MT_QUIRK_HOVERING) {
492 hid_map_usage(hi, usage, bit, max,
493 EV_ABS, ABS_MT_DISTANCE);
494 input_set_abs_params(hi->input,
495 ABS_MT_DISTANCE, 0, 1, 0, 0);
497 mt_store_field(usage, td, hi);
499 case HID_DG_CONFIDENCE:
500 mt_store_field(usage, td, hi);
502 case HID_DG_TIPSWITCH:
503 hid_map_usage(hi, usage, bit, max, EV_KEY, BTN_TOUCH);
504 input_set_capability(hi->input, EV_KEY, BTN_TOUCH);
505 mt_store_field(usage, td, hi);
507 case HID_DG_CONTACTID:
508 mt_store_field(usage, td, hi);
509 td->touches_by_report++;
510 td->mt_report_id = field->report->id;
513 hid_map_usage(hi, usage, bit, max,
514 EV_ABS, ABS_MT_TOUCH_MAJOR);
515 if (!(cls->quirks & MT_QUIRK_NO_AREA))
516 set_abs(hi->input, ABS_MT_TOUCH_MAJOR, field,
518 mt_store_field(usage, td, hi);
521 hid_map_usage(hi, usage, bit, max,
522 EV_ABS, ABS_MT_TOUCH_MINOR);
523 if (!(cls->quirks & MT_QUIRK_NO_AREA)) {
524 set_abs(hi->input, ABS_MT_TOUCH_MINOR, field,
526 input_set_abs_params(hi->input,
527 ABS_MT_ORIENTATION, 0, 1, 0, 0);
529 mt_store_field(usage, td, hi);
531 case HID_DG_TIPPRESSURE:
532 hid_map_usage(hi, usage, bit, max,
533 EV_ABS, ABS_MT_PRESSURE);
534 set_abs(hi->input, ABS_MT_PRESSURE, field,
536 mt_store_field(usage, td, hi);
538 case HID_DG_CONTACTCOUNT:
539 /* Ignore if indexes are out of bounds. */
540 if (field->index >= field->report->maxfield ||
541 usage->usage_index >= field->report_count)
543 td->cc_index = field->index;
544 td->cc_value_index = usage->usage_index;
546 case HID_DG_CONTACTMAX:
547 /* we don't set td->last_slot_field as contactcount and
548 * contact max are global to the report */
551 /* Legacy devices use TIPSWITCH and not TOUCH.
552 * Let's just ignore this field. */
555 /* let hid-input decide for the others */
559 code = BTN_MOUSE + ((usage->hid - 1) & HID_USAGE);
560 hid_map_usage(hi, usage, bit, max, EV_KEY, code);
561 input_set_capability(hi->input, EV_KEY, code);
565 /* we do not want to map these: no input-oriented meaning */
572 static int mt_touch_input_mapped(struct hid_device *hdev, struct hid_input *hi,
573 struct hid_field *field, struct hid_usage *usage,
574 unsigned long **bit, int *max)
576 if (usage->type == EV_KEY || usage->type == EV_ABS)
577 set_bit(usage->type, hi->input->evbit);
582 static int mt_compute_slot(struct mt_device *td, struct input_dev *input)
584 __s32 quirks = td->mtclass.quirks;
586 if (quirks & MT_QUIRK_SLOT_IS_CONTACTID)
587 return td->curdata.contactid;
589 if (quirks & MT_QUIRK_CYPRESS)
590 return cypress_compute_slot(td);
592 if (quirks & MT_QUIRK_SLOT_IS_CONTACTNUMBER)
593 return td->num_received;
595 if (quirks & MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE)
596 return td->curdata.contactid - 1;
598 return input_mt_get_slot_by_key(input, td->curdata.contactid);
602 * this function is called when a whole contact has been processed,
603 * so that it can assign it to a slot and store the data there
605 static void mt_complete_slot(struct mt_device *td, struct input_dev *input)
607 if ((td->mtclass.quirks & MT_QUIRK_CONTACT_CNT_ACCURATE) &&
608 td->num_received >= td->num_expected)
611 if (td->curvalid || (td->mtclass.quirks & MT_QUIRK_ALWAYS_VALID)) {
612 int slotnum = mt_compute_slot(td, input);
613 struct mt_slot *s = &td->curdata;
614 struct input_mt *mt = input->mt;
616 if (slotnum < 0 || slotnum >= td->maxcontacts)
619 if ((td->mtclass.quirks & MT_QUIRK_IGNORE_DUPLICATES) && mt) {
620 struct input_mt_slot *slot = &mt->slots[slotnum];
621 if (input_mt_is_active(slot) &&
622 input_mt_is_used(mt, slot))
626 input_mt_slot(input, slotnum);
627 input_mt_report_slot_state(input, MT_TOOL_FINGER,
628 s->touch_state || s->inrange_state);
629 if (s->touch_state || s->inrange_state) {
630 /* this finger is in proximity of the sensor */
631 int wide = (s->w > s->h);
632 /* divided by two to match visual scale of touch */
633 int major = max(s->w, s->h) >> 1;
634 int minor = min(s->w, s->h) >> 1;
636 input_event(input, EV_ABS, ABS_MT_POSITION_X, s->x);
637 input_event(input, EV_ABS, ABS_MT_POSITION_Y, s->y);
638 input_event(input, EV_ABS, ABS_MT_TOOL_X, s->cx);
639 input_event(input, EV_ABS, ABS_MT_TOOL_Y, s->cy);
640 input_event(input, EV_ABS, ABS_MT_DISTANCE,
642 input_event(input, EV_ABS, ABS_MT_ORIENTATION, wide);
643 input_event(input, EV_ABS, ABS_MT_PRESSURE, s->p);
644 input_event(input, EV_ABS, ABS_MT_TOUCH_MAJOR, major);
645 input_event(input, EV_ABS, ABS_MT_TOUCH_MINOR, minor);
653 * this function is called when a whole packet has been received and processed,
654 * so that it can decide what to send to the input layer.
656 static void mt_sync_frame(struct mt_device *td, struct input_dev *input)
658 input_mt_sync_frame(input);
660 td->num_received = 0;
663 static int mt_touch_event(struct hid_device *hid, struct hid_field *field,
664 struct hid_usage *usage, __s32 value)
666 /* we will handle the hidinput part later, now remains hiddev */
667 if (hid->claimed & HID_CLAIMED_HIDDEV && hid->hiddev_hid_event)
668 hid->hiddev_hid_event(hid, field, usage, value);
673 static void mt_process_mt_event(struct hid_device *hid, struct hid_field *field,
674 struct hid_usage *usage, __s32 value)
676 struct mt_device *td = hid_get_drvdata(hid);
677 __s32 quirks = td->mtclass.quirks;
678 struct input_dev *input = field->hidinput->input;
680 if (hid->claimed & HID_CLAIMED_INPUT) {
681 switch (usage->hid) {
683 if (quirks & MT_QUIRK_VALID_IS_INRANGE)
684 td->curvalid = value;
685 if (quirks & MT_QUIRK_HOVERING)
686 td->curdata.inrange_state = value;
688 case HID_DG_TIPSWITCH:
689 if (quirks & MT_QUIRK_NOT_SEEN_MEANS_UP)
690 td->curvalid = value;
691 td->curdata.touch_state = value;
693 case HID_DG_CONFIDENCE:
694 if (quirks & MT_QUIRK_VALID_IS_CONFIDENCE)
695 td->curvalid = value;
697 case HID_DG_CONTACTID:
698 td->curdata.contactid = value;
700 case HID_DG_TIPPRESSURE:
701 td->curdata.p = value;
704 if (usage->code == ABS_MT_TOOL_X)
705 td->curdata.cx = value;
707 td->curdata.x = value;
710 if (usage->code == ABS_MT_TOOL_Y)
711 td->curdata.cy = value;
713 td->curdata.y = value;
716 td->curdata.w = value;
719 td->curdata.h = value;
721 case HID_DG_CONTACTCOUNT:
729 input_event(input, usage->type, usage->code,
734 if (usage->usage_index + 1 == field->report_count) {
735 /* we only take into account the last report. */
736 if (usage->hid == td->last_slot_field)
737 mt_complete_slot(td, field->hidinput->input);
743 static void mt_touch_report(struct hid_device *hid, struct hid_report *report)
745 struct mt_device *td = hid_get_drvdata(hid);
746 struct hid_field *field;
751 * Includes multi-packet support where subsequent
752 * packets are sent with zero contactcount.
754 if (td->cc_index >= 0) {
755 struct hid_field *field = report->field[td->cc_index];
756 int value = field->value[td->cc_value_index];
758 td->num_expected = value;
761 for (r = 0; r < report->maxfield; r++) {
762 field = report->field[r];
763 count = field->report_count;
765 if (!(HID_MAIN_ITEM_VARIABLE & field->flags))
768 for (n = 0; n < count; n++)
769 mt_process_mt_event(hid, field, &field->usage[n],
773 if (td->num_received >= td->num_expected)
774 mt_sync_frame(td, report->field[0]->hidinput->input);
777 static int mt_touch_input_configured(struct hid_device *hdev,
778 struct hid_input *hi)
780 struct mt_device *td = hid_get_drvdata(hdev);
781 struct mt_class *cls = &td->mtclass;
782 struct input_dev *input = hi->input;
785 if (!td->maxcontacts)
786 td->maxcontacts = MT_DEFAULT_MAXCONTACT;
789 if (td->serial_maybe)
790 mt_post_parse_default_settings(td);
792 if (cls->is_indirect)
793 td->mt_flags |= INPUT_MT_POINTER;
795 if (cls->quirks & MT_QUIRK_NOT_SEEN_MEANS_UP)
796 td->mt_flags |= INPUT_MT_DROP_UNUSED;
798 /* check for clickpads */
799 if ((td->mt_flags & INPUT_MT_POINTER) && (td->buttons_count == 1))
800 td->is_buttonpad = true;
802 if (td->is_buttonpad)
803 __set_bit(INPUT_PROP_BUTTONPAD, input->propbit);
805 ret = input_mt_init_slots(input, td->maxcontacts, td->mt_flags);
813 static int mt_input_mapping(struct hid_device *hdev, struct hid_input *hi,
814 struct hid_field *field, struct hid_usage *usage,
815 unsigned long **bit, int *max)
817 struct mt_device *td = hid_get_drvdata(hdev);
820 * If mtclass.export_all_inputs is not set, only map fields from
821 * TouchScreen or TouchPad collections. We need to ignore fields
822 * that belong to other collections such as Mouse that might have
823 * the same GenericDesktop usages.
825 if (!td->mtclass.export_all_inputs &&
826 field->application != HID_DG_TOUCHSCREEN &&
827 field->application != HID_DG_PEN &&
828 field->application != HID_DG_TOUCHPAD)
832 * some egalax touchscreens have "application == HID_DG_TOUCHSCREEN"
834 * The check for mt_report_id ensures we don't process
835 * HID_DG_CONTACTCOUNT from the pen report as it is outside the physical
836 * collection, but within the report ID.
838 if (field->physical == HID_DG_STYLUS)
840 else if ((field->physical == 0) &&
841 (field->report->id != td->mt_report_id) &&
842 (td->mt_report_id != -1))
845 if (field->application == HID_DG_TOUCHSCREEN ||
846 field->application == HID_DG_TOUCHPAD)
847 return mt_touch_input_mapping(hdev, hi, field, usage, bit, max);
849 /* let hid-core decide for the others */
853 static int mt_input_mapped(struct hid_device *hdev, struct hid_input *hi,
854 struct hid_field *field, struct hid_usage *usage,
855 unsigned long **bit, int *max)
858 * some egalax touchscreens have "application == HID_DG_TOUCHSCREEN"
861 if (field->physical == HID_DG_STYLUS)
864 if (field->application == HID_DG_TOUCHSCREEN ||
865 field->application == HID_DG_TOUCHPAD)
866 return mt_touch_input_mapped(hdev, hi, field, usage, bit, max);
868 /* let hid-core decide for the others */
872 static int mt_event(struct hid_device *hid, struct hid_field *field,
873 struct hid_usage *usage, __s32 value)
875 struct mt_device *td = hid_get_drvdata(hid);
877 if (field->report->id == td->mt_report_id)
878 return mt_touch_event(hid, field, usage, value);
883 static void mt_report(struct hid_device *hid, struct hid_report *report)
885 struct mt_device *td = hid_get_drvdata(hid);
886 struct hid_field *field = report->field[0];
888 if (!(hid->claimed & HID_CLAIMED_INPUT))
891 if (report->id == td->mt_report_id)
892 return mt_touch_report(hid, report);
894 if (field && field->hidinput && field->hidinput->input)
895 input_sync(field->hidinput->input);
898 static void mt_set_input_mode(struct hid_device *hdev)
900 struct mt_device *td = hid_get_drvdata(hdev);
901 struct hid_report *r;
902 struct hid_report_enum *re;
903 struct mt_class *cls = &td->mtclass;
907 if (td->inputmode < 0)
910 re = &(hdev->report_enum[HID_FEATURE_REPORT]);
911 r = re->report_id_hash[td->inputmode];
913 if (cls->quirks & MT_QUIRK_FORCE_GET_FEATURE) {
914 report_len = hid_report_len(r);
915 buf = hid_alloc_report_buf(r, GFP_KERNEL);
917 hid_err(hdev, "failed to allocate buffer for report\n");
920 hid_hw_raw_request(hdev, r->id, buf, report_len,
925 r->field[0]->value[td->inputmode_index] = td->inputmode_value;
926 hid_hw_request(hdev, r, HID_REQ_SET_REPORT);
930 static void mt_set_maxcontacts(struct hid_device *hdev)
932 struct mt_device *td = hid_get_drvdata(hdev);
933 struct hid_report *r;
934 struct hid_report_enum *re;
937 if (td->maxcontact_report_id < 0)
940 if (!td->mtclass.maxcontacts)
943 re = &hdev->report_enum[HID_FEATURE_REPORT];
944 r = re->report_id_hash[td->maxcontact_report_id];
946 max = td->mtclass.maxcontacts;
947 fieldmax = r->field[0]->logical_maximum;
948 max = min(fieldmax, max);
949 if (r->field[0]->value[0] != max) {
950 r->field[0]->value[0] = max;
951 hid_hw_request(hdev, r, HID_REQ_SET_REPORT);
956 static void mt_post_parse_default_settings(struct mt_device *td)
958 __s32 quirks = td->mtclass.quirks;
960 /* unknown serial device needs special quirks */
961 if (td->touches_by_report == 1) {
962 quirks |= MT_QUIRK_ALWAYS_VALID;
963 quirks &= ~MT_QUIRK_NOT_SEEN_MEANS_UP;
964 quirks &= ~MT_QUIRK_VALID_IS_INRANGE;
965 quirks &= ~MT_QUIRK_VALID_IS_CONFIDENCE;
966 quirks &= ~MT_QUIRK_CONTACT_CNT_ACCURATE;
969 td->mtclass.quirks = quirks;
972 static void mt_post_parse(struct mt_device *td)
974 struct mt_fields *f = td->fields;
975 struct mt_class *cls = &td->mtclass;
977 if (td->touches_by_report > 0) {
978 int field_count_per_touch = f->length / td->touches_by_report;
979 td->last_slot_field = f->usages[field_count_per_touch - 1];
982 if (td->cc_index < 0)
983 cls->quirks &= ~MT_QUIRK_CONTACT_CNT_ACCURATE;
986 static int mt_input_configured(struct hid_device *hdev, struct hid_input *hi)
988 struct mt_device *td = hid_get_drvdata(hdev);
990 const char *suffix = NULL;
991 struct hid_field *field = hi->report->field[0];
994 if (hi->report->id == td->mt_report_id) {
995 ret = mt_touch_input_configured(hdev, hi);
1001 * some egalax touchscreens have "application == HID_DG_TOUCHSCREEN"
1002 * for the stylus. Check this first, and then rely on the application
1005 if (hi->report->field[0]->physical == HID_DG_STYLUS) {
1007 /* force BTN_STYLUS to allow tablet matching in udev */
1008 __set_bit(BTN_STYLUS, hi->input->keybit);
1010 switch (field->application) {
1011 case HID_GD_KEYBOARD:
1012 suffix = "Keyboard";
1022 /* force BTN_STYLUS to allow tablet matching in udev */
1023 __set_bit(BTN_STYLUS, hi->input->keybit);
1025 case HID_DG_TOUCHSCREEN:
1026 /* we do not set suffix = "Touchscreen" */
1028 case HID_DG_TOUCHPAD:
1029 suffix = "Touchpad";
1031 case HID_GD_SYSTEM_CONTROL:
1032 suffix = "System Control";
1034 case HID_CP_CONSUMER_CONTROL:
1035 suffix = "Consumer Control";
1044 name = devm_kzalloc(&hi->input->dev,
1045 strlen(hdev->name) + strlen(suffix) + 2,
1048 sprintf(name, "%s %s", hdev->name, suffix);
1049 hi->input->name = name;
1056 static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id)
1059 struct mt_device *td;
1060 struct mt_class *mtclass = mt_classes; /* MT_CLS_DEFAULT */
1062 for (i = 0; mt_classes[i].name ; i++) {
1063 if (id->driver_data == mt_classes[i].name) {
1064 mtclass = &(mt_classes[i]);
1069 /* This allows the driver to correctly support devices
1070 * that emit events over several HID messages.
1072 hdev->quirks |= HID_QUIRK_NO_INPUT_SYNC;
1075 * This allows the driver to handle different input sensors
1076 * that emits events through different reports on the same HID
1079 hdev->quirks |= HID_QUIRK_MULTI_INPUT;
1080 hdev->quirks |= HID_QUIRK_NO_EMPTY_INPUT;
1083 * Handle special quirks for Windows 8 certified devices.
1085 if (id->group == HID_GROUP_MULTITOUCH_WIN_8)
1087 * Some multitouch screens do not like to be polled for input
1088 * reports. Fortunately, the Win8 spec says that all touches
1089 * should be sent during each report, making the initialization
1090 * of input reports unnecessary.
1092 * In addition some touchpads do not behave well if we read
1093 * all feature reports from them. Instead we prevent
1094 * initial report fetching and then selectively fetch each
1095 * report we are interested in.
1097 hdev->quirks |= HID_QUIRK_NO_INIT_REPORTS;
1099 td = devm_kzalloc(&hdev->dev, sizeof(struct mt_device), GFP_KERNEL);
1101 dev_err(&hdev->dev, "cannot allocate multitouch data\n");
1104 td->mtclass = *mtclass;
1106 td->maxcontact_report_id = -1;
1107 td->inputmode_value = MT_INPUTMODE_TOUCHSCREEN;
1109 td->mt_report_id = -1;
1110 hid_set_drvdata(hdev, td);
1112 td->fields = devm_kzalloc(&hdev->dev, sizeof(struct mt_fields),
1115 dev_err(&hdev->dev, "cannot allocate multitouch fields data\n");
1119 if (id->vendor == HID_ANY_ID && id->product == HID_ANY_ID)
1120 td->serial_maybe = true;
1122 ret = hid_parse(hdev);
1126 ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
1130 ret = sysfs_create_group(&hdev->dev.kobj, &mt_attribute_group);
1132 mt_set_maxcontacts(hdev);
1133 mt_set_input_mode(hdev);
1135 /* release .fields memory as it is not used anymore */
1136 devm_kfree(&hdev->dev, td->fields);
1143 static int mt_reset_resume(struct hid_device *hdev)
1145 mt_set_maxcontacts(hdev);
1146 mt_set_input_mode(hdev);
1150 static int mt_resume(struct hid_device *hdev)
1152 /* Some Elan legacy devices require SET_IDLE to be set on resume.
1153 * It should be safe to send it to other devices too.
1154 * Tested on 3M, Stantum, Cypress, Zytronic, eGalax, and Elan panels. */
1156 hid_hw_idle(hdev, 0, 0, HID_REQ_SET_IDLE);
1162 static void mt_remove(struct hid_device *hdev)
1164 sysfs_remove_group(&hdev->dev.kobj, &mt_attribute_group);
1169 * This list contains only:
1170 * - VID/PID of products not working with the default multitouch handling
1171 * - 2 generic rules.
1172 * So there is no point in adding here any device with MT_CLS_DEFAULT.
1174 static const struct hid_device_id mt_devices[] = {
1177 { .driver_data = MT_CLS_3M,
1178 MT_USB_DEVICE(USB_VENDOR_ID_3M,
1179 USB_DEVICE_ID_3M1968) },
1180 { .driver_data = MT_CLS_3M,
1181 MT_USB_DEVICE(USB_VENDOR_ID_3M,
1182 USB_DEVICE_ID_3M2256) },
1183 { .driver_data = MT_CLS_3M,
1184 MT_USB_DEVICE(USB_VENDOR_ID_3M,
1185 USB_DEVICE_ID_3M3266) },
1188 { .driver_data = MT_CLS_EXPORT_ALL_INPUTS,
1189 MT_USB_DEVICE(USB_VENDOR_ID_ANTON,
1190 USB_DEVICE_ID_ANTON_TOUCH_PAD) },
1193 { .driver_data = MT_CLS_SERIAL,
1194 MT_USB_DEVICE(USB_VENDOR_ID_ATMEL,
1195 USB_DEVICE_ID_ATMEL_MXT_DIGITIZER) },
1197 /* Baanto multitouch devices */
1198 { .driver_data = MT_CLS_NSMU,
1199 MT_USB_DEVICE(USB_VENDOR_ID_BAANTO,
1200 USB_DEVICE_ID_BAANTO_MT_190W2) },
1203 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
1204 MT_USB_DEVICE(USB_VENDOR_ID_CANDO,
1205 USB_DEVICE_ID_CANDO_MULTI_TOUCH) },
1206 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
1207 MT_USB_DEVICE(USB_VENDOR_ID_CANDO,
1208 USB_DEVICE_ID_CANDO_MULTI_TOUCH_15_6) },
1210 /* Chunghwa Telecom touch panels */
1211 { .driver_data = MT_CLS_NSMU,
1212 MT_USB_DEVICE(USB_VENDOR_ID_CHUNGHWAT,
1213 USB_DEVICE_ID_CHUNGHWAT_MULTITOUCH) },
1215 /* CJTouch panels */
1216 { .driver_data = MT_CLS_NSMU,
1217 MT_USB_DEVICE(USB_VENDOR_ID_CJTOUCH,
1218 USB_DEVICE_ID_CJTOUCH_MULTI_TOUCH_0020) },
1219 { .driver_data = MT_CLS_NSMU,
1220 MT_USB_DEVICE(USB_VENDOR_ID_CJTOUCH,
1221 USB_DEVICE_ID_CJTOUCH_MULTI_TOUCH_0040) },
1223 /* CVTouch panels */
1224 { .driver_data = MT_CLS_NSMU,
1225 MT_USB_DEVICE(USB_VENDOR_ID_CVTOUCH,
1226 USB_DEVICE_ID_CVTOUCH_SCREEN) },
1228 /* eGalax devices (resistive) */
1229 { .driver_data = MT_CLS_EGALAX,
1230 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1231 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_480D) },
1232 { .driver_data = MT_CLS_EGALAX,
1233 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1234 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_480E) },
1236 /* eGalax devices (capacitive) */
1237 { .driver_data = MT_CLS_EGALAX_SERIAL,
1238 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1239 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7207) },
1240 { .driver_data = MT_CLS_EGALAX,
1241 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1242 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_720C) },
1243 { .driver_data = MT_CLS_EGALAX_SERIAL,
1244 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1245 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7224) },
1246 { .driver_data = MT_CLS_EGALAX_SERIAL,
1247 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1248 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_722A) },
1249 { .driver_data = MT_CLS_EGALAX_SERIAL,
1250 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1251 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_725E) },
1252 { .driver_data = MT_CLS_EGALAX_SERIAL,
1253 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1254 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7262) },
1255 { .driver_data = MT_CLS_EGALAX,
1256 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1257 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_726B) },
1258 { .driver_data = MT_CLS_EGALAX,
1259 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1260 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72A1) },
1261 { .driver_data = MT_CLS_EGALAX_SERIAL,
1262 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1263 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72AA) },
1264 { .driver_data = MT_CLS_EGALAX,
1265 HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
1266 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72C4) },
1267 { .driver_data = MT_CLS_EGALAX,
1268 HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
1269 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72D0) },
1270 { .driver_data = MT_CLS_EGALAX,
1271 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1272 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72FA) },
1273 { .driver_data = MT_CLS_EGALAX,
1274 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1275 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7302) },
1276 { .driver_data = MT_CLS_EGALAX_SERIAL,
1277 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1278 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7349) },
1279 { .driver_data = MT_CLS_EGALAX_SERIAL,
1280 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1281 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_73F7) },
1282 { .driver_data = MT_CLS_EGALAX_SERIAL,
1283 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1284 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_A001) },
1286 /* Elitegroup panel */
1287 { .driver_data = MT_CLS_SERIAL,
1288 MT_USB_DEVICE(USB_VENDOR_ID_ELITEGROUP,
1289 USB_DEVICE_ID_ELITEGROUP_05D8) },
1291 /* Flatfrog Panels */
1292 { .driver_data = MT_CLS_FLATFROG,
1293 MT_USB_DEVICE(USB_VENDOR_ID_FLATFROG,
1294 USB_DEVICE_ID_MULTITOUCH_3200) },
1296 /* FocalTech Panels */
1297 { .driver_data = MT_CLS_SERIAL,
1298 MT_USB_DEVICE(USB_VENDOR_ID_CYGNAL,
1299 USB_DEVICE_ID_FOCALTECH_FTXXXX_MULTITOUCH) },
1301 /* GeneralTouch panel */
1302 { .driver_data = MT_CLS_GENERALTOUCH_TWOFINGERS,
1303 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
1304 USB_DEVICE_ID_GENERAL_TOUCH_WIN7_TWOFINGERS) },
1305 { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
1306 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
1307 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PWT_TENFINGERS) },
1308 { .driver_data = MT_CLS_GENERALTOUCH_TWOFINGERS,
1309 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
1310 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_0101) },
1311 { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
1312 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
1313 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_0102) },
1314 { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
1315 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
1316 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_0106) },
1317 { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
1318 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
1319 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_010A) },
1320 { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
1321 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
1322 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_E100) },
1324 /* Gametel game controller */
1325 { .driver_data = MT_CLS_NSMU,
1326 MT_BT_DEVICE(USB_VENDOR_ID_FRUCTEL,
1327 USB_DEVICE_ID_GAMETEL_MT_MODE) },
1329 /* GoodTouch panels */
1330 { .driver_data = MT_CLS_NSMU,
1331 MT_USB_DEVICE(USB_VENDOR_ID_GOODTOUCH,
1332 USB_DEVICE_ID_GOODTOUCH_000f) },
1335 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID,
1336 MT_USB_DEVICE(USB_VENDOR_ID_HANVON_ALT,
1337 USB_DEVICE_ID_HANVON_ALT_MULTITOUCH) },
1339 /* Ilitek dual touch panel */
1340 { .driver_data = MT_CLS_NSMU,
1341 MT_USB_DEVICE(USB_VENDOR_ID_ILITEK,
1342 USB_DEVICE_ID_ILITEK_MULTITOUCH) },
1345 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
1346 MT_USB_DEVICE(USB_VENDOR_ID_ASUS,
1347 USB_DEVICE_ID_ASUS_T91MT)},
1348 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
1349 MT_USB_DEVICE(USB_VENDOR_ID_ASUS,
1350 USB_DEVICE_ID_ASUSTEK_MULTITOUCH_YFO) },
1351 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
1352 MT_USB_DEVICE(USB_VENDOR_ID_TURBOX,
1353 USB_DEVICE_ID_TURBOX_TOUCHSCREEN_MOSART) },
1355 /* Panasonic panels */
1356 { .driver_data = MT_CLS_PANASONIC,
1357 MT_USB_DEVICE(USB_VENDOR_ID_PANASONIC,
1358 USB_DEVICE_ID_PANABOARD_UBT780) },
1359 { .driver_data = MT_CLS_PANASONIC,
1360 MT_USB_DEVICE(USB_VENDOR_ID_PANASONIC,
1361 USB_DEVICE_ID_PANABOARD_UBT880) },
1364 { .driver_data = MT_CLS_NSMU,
1365 MT_USB_DEVICE(USB_VENDOR_ID_NOVATEK,
1366 USB_DEVICE_ID_NOVATEK_PCT) },
1368 /* PixArt optical touch screen */
1369 { .driver_data = MT_CLS_INRANGE_CONTACTNUMBER,
1370 MT_USB_DEVICE(USB_VENDOR_ID_PIXART,
1371 USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN) },
1372 { .driver_data = MT_CLS_INRANGE_CONTACTNUMBER,
1373 MT_USB_DEVICE(USB_VENDOR_ID_PIXART,
1374 USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN1) },
1375 { .driver_data = MT_CLS_INRANGE_CONTACTNUMBER,
1376 MT_USB_DEVICE(USB_VENDOR_ID_PIXART,
1377 USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN2) },
1379 /* PixCir-based panels */
1380 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID,
1381 MT_USB_DEVICE(USB_VENDOR_ID_CANDO,
1382 USB_DEVICE_ID_CANDO_PIXCIR_MULTI_TOUCH) },
1384 /* Quanta-based panels */
1385 { .driver_data = MT_CLS_CONFIDENCE_CONTACT_ID,
1386 MT_USB_DEVICE(USB_VENDOR_ID_QUANTA,
1387 USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3001) },
1389 /* Stantum panels */
1390 { .driver_data = MT_CLS_CONFIDENCE,
1391 MT_USB_DEVICE(USB_VENDOR_ID_STANTUM_STM,
1392 USB_DEVICE_ID_MTP_STM)},
1394 /* TopSeed panels */
1395 { .driver_data = MT_CLS_TOPSEED,
1396 MT_USB_DEVICE(USB_VENDOR_ID_TOPSEED2,
1397 USB_DEVICE_ID_TOPSEED2_PERIPAD_701) },
1399 /* Touch International panels */
1400 { .driver_data = MT_CLS_NSMU,
1401 MT_USB_DEVICE(USB_VENDOR_ID_TOUCH_INTL,
1402 USB_DEVICE_ID_TOUCH_INTL_MULTI_TOUCH) },
1405 { .driver_data = MT_CLS_NSMU,
1406 MT_USB_DEVICE(USB_VENDOR_ID_UNITEC,
1407 USB_DEVICE_ID_UNITEC_USB_TOUCH_0709) },
1408 { .driver_data = MT_CLS_NSMU,
1409 MT_USB_DEVICE(USB_VENDOR_ID_UNITEC,
1410 USB_DEVICE_ID_UNITEC_USB_TOUCH_0A19) },
1413 { .driver_data = MT_CLS_VTL,
1414 MT_USB_DEVICE(USB_VENDOR_ID_VTL,
1415 USB_DEVICE_ID_VTL_MULTITOUCH_FF3F) },
1417 /* Wistron panels */
1418 { .driver_data = MT_CLS_NSMU,
1419 MT_USB_DEVICE(USB_VENDOR_ID_WISTRON,
1420 USB_DEVICE_ID_WISTRON_OPTICAL_TOUCH) },
1423 { .driver_data = MT_CLS_NSMU,
1424 MT_USB_DEVICE(USB_VENDOR_ID_XAT,
1425 USB_DEVICE_ID_XAT_CSR) },
1428 { .driver_data = MT_CLS_NSMU,
1429 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1430 USB_DEVICE_ID_XIROKU_SPX) },
1431 { .driver_data = MT_CLS_NSMU,
1432 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1433 USB_DEVICE_ID_XIROKU_MPX) },
1434 { .driver_data = MT_CLS_NSMU,
1435 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1436 USB_DEVICE_ID_XIROKU_CSR) },
1437 { .driver_data = MT_CLS_NSMU,
1438 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1439 USB_DEVICE_ID_XIROKU_SPX1) },
1440 { .driver_data = MT_CLS_NSMU,
1441 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1442 USB_DEVICE_ID_XIROKU_MPX1) },
1443 { .driver_data = MT_CLS_NSMU,
1444 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1445 USB_DEVICE_ID_XIROKU_CSR1) },
1446 { .driver_data = MT_CLS_NSMU,
1447 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1448 USB_DEVICE_ID_XIROKU_SPX2) },
1449 { .driver_data = MT_CLS_NSMU,
1450 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1451 USB_DEVICE_ID_XIROKU_MPX2) },
1452 { .driver_data = MT_CLS_NSMU,
1453 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1454 USB_DEVICE_ID_XIROKU_CSR2) },
1456 /* Generic MT device */
1457 { HID_DEVICE(HID_BUS_ANY, HID_GROUP_MULTITOUCH, HID_ANY_ID, HID_ANY_ID) },
1459 /* Generic Win 8 certified MT device */
1460 { .driver_data = MT_CLS_WIN_8,
1461 HID_DEVICE(HID_BUS_ANY, HID_GROUP_MULTITOUCH_WIN_8,
1462 HID_ANY_ID, HID_ANY_ID) },
1465 MODULE_DEVICE_TABLE(hid, mt_devices);
1467 static const struct hid_usage_id mt_grabbed_usages[] = {
1468 { HID_ANY_ID, HID_ANY_ID, HID_ANY_ID },
1469 { HID_ANY_ID - 1, HID_ANY_ID - 1, HID_ANY_ID - 1}
1472 static struct hid_driver mt_driver = {
1473 .name = "hid-multitouch",
1474 .id_table = mt_devices,
1476 .remove = mt_remove,
1477 .input_mapping = mt_input_mapping,
1478 .input_mapped = mt_input_mapped,
1479 .input_configured = mt_input_configured,
1480 .feature_mapping = mt_feature_mapping,
1481 .usage_table = mt_grabbed_usages,
1483 .report = mt_report,
1485 .reset_resume = mt_reset_resume,
1486 .resume = mt_resume,
1489 module_hid_driver(mt_driver);