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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>
47#include <linux/timer.h>
48
49
50MODULE_AUTHOR("Stephane Chatty <chatty@enac.fr>");
51MODULE_AUTHOR("Benjamin Tissoires <benjamin.tissoires@gmail.com>");
52MODULE_DESCRIPTION("HID multitouch panels");
53MODULE_LICENSE("GPL");
54
55#include "hid-ids.h"
56
57
58#define MT_QUIRK_NOT_SEEN_MEANS_UP BIT(0)
59#define MT_QUIRK_SLOT_IS_CONTACTID BIT(1)
60#define MT_QUIRK_CYPRESS BIT(2)
61#define MT_QUIRK_SLOT_IS_CONTACTNUMBER BIT(3)
62#define MT_QUIRK_ALWAYS_VALID BIT(4)
63#define MT_QUIRK_VALID_IS_INRANGE BIT(5)
64#define MT_QUIRK_VALID_IS_CONFIDENCE BIT(6)
65#define MT_QUIRK_CONFIDENCE BIT(7)
66#define MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE BIT(8)
67#define MT_QUIRK_NO_AREA BIT(9)
68#define MT_QUIRK_IGNORE_DUPLICATES BIT(10)
69#define MT_QUIRK_HOVERING BIT(11)
70#define MT_QUIRK_CONTACT_CNT_ACCURATE BIT(12)
71#define MT_QUIRK_FORCE_GET_FEATURE BIT(13)
72#define MT_QUIRK_FIX_CONST_CONTACT_ID BIT(14)
73#define MT_QUIRK_TOUCH_SIZE_SCALING BIT(15)
74#define MT_QUIRK_STICKY_FINGERS BIT(16)
75#define MT_QUIRK_ASUS_CUSTOM_UP BIT(17)
76
77#define MT_INPUTMODE_TOUCHSCREEN 0x02
78#define MT_INPUTMODE_TOUCHPAD 0x03
79
80#define MT_BUTTONTYPE_CLICKPAD 0
81
82#define MT_IO_FLAGS_RUNNING 0
83#define MT_IO_FLAGS_ACTIVE_SLOTS 1
84#define MT_IO_FLAGS_PENDING_SLOTS 2
85
86struct mt_slot {
87 __s32 x, y, cx, cy, p, w, h;
88 __s32 contactid;
89 bool touch_state;
90 bool inrange_state;
91 bool confidence_state;
92};
93
94struct mt_class {
95 __s32 name;
96 __s32 quirks;
97 __s32 sn_move;
98 __s32 sn_width;
99 __s32 sn_height;
100 __s32 sn_pressure;
101 __u8 maxcontacts;
102 bool is_indirect;
103 bool export_all_inputs;
104};
105
106struct mt_fields {
107 unsigned usages[HID_MAX_FIELDS];
108 unsigned int length;
109};
110
111struct mt_device {
112 struct mt_slot curdata;
113 struct mt_class mtclass;
114 struct timer_list release_timer;
115 struct mt_fields *fields;
116
117 unsigned long mt_io_flags;
118 int cc_index;
119 int cc_value_index;
120 unsigned last_slot_field;
121 unsigned mt_report_id;
122 unsigned long initial_quirks;
123 __s16 inputmode;
124 __s16 inputmode_index;
125 __s16 maxcontact_report_id;
126
127 __u8 inputmode_value;
128 __u8 num_received;
129 __u8 num_expected;
130 __u8 maxcontacts;
131 __u8 touches_by_report;
132
133
134 __u8 buttons_count;
135 bool is_buttonpad;
136 bool serial_maybe;
137 bool curvalid;
138 unsigned mt_flags;
139};
140
141static void mt_post_parse_default_settings(struct mt_device *td);
142static void mt_post_parse(struct mt_device *td);
143
144
145#define MT_CLS_DEFAULT 0x0001
146
147#define MT_CLS_SERIAL 0x0002
148#define MT_CLS_CONFIDENCE 0x0003
149#define MT_CLS_CONFIDENCE_CONTACT_ID 0x0004
150#define MT_CLS_CONFIDENCE_MINUS_ONE 0x0005
151#define MT_CLS_DUAL_INRANGE_CONTACTID 0x0006
152#define MT_CLS_DUAL_INRANGE_CONTACTNUMBER 0x0007
153
154#define MT_CLS_INRANGE_CONTACTNUMBER 0x0009
155#define MT_CLS_NSMU 0x000a
156
157
158#define MT_CLS_WIN_8 0x0012
159#define MT_CLS_EXPORT_ALL_INPUTS 0x0013
160#define MT_CLS_WIN_8_DUAL 0x0014
161
162
163#define MT_CLS_3M 0x0101
164
165#define MT_CLS_EGALAX 0x0103
166#define MT_CLS_EGALAX_SERIAL 0x0104
167#define MT_CLS_TOPSEED 0x0105
168#define MT_CLS_PANASONIC 0x0106
169#define MT_CLS_FLATFROG 0x0107
170#define MT_CLS_GENERALTOUCH_TWOFINGERS 0x0108
171#define MT_CLS_GENERALTOUCH_PWT_TENFINGERS 0x0109
172#define MT_CLS_LG 0x010a
173#define MT_CLS_ASUS 0x010b
174#define MT_CLS_VTL 0x0110
175#define MT_CLS_GOOGLE 0x0111
176
177#define MT_DEFAULT_MAXCONTACT 10
178#define MT_MAX_MAXCONTACT 250
179
180#define MT_USB_DEVICE(v, p) HID_DEVICE(BUS_USB, HID_GROUP_MULTITOUCH, v, p)
181#define MT_BT_DEVICE(v, p) HID_DEVICE(BUS_BLUETOOTH, HID_GROUP_MULTITOUCH, v, p)
182
183
184
185
186
187
188static int cypress_compute_slot(struct mt_device *td)
189{
190 if (td->curdata.contactid != 0 || td->num_received == 0)
191 return td->curdata.contactid;
192 else
193 return -1;
194}
195
196static struct mt_class mt_classes[] = {
197 { .name = MT_CLS_DEFAULT,
198 .quirks = MT_QUIRK_ALWAYS_VALID |
199 MT_QUIRK_CONTACT_CNT_ACCURATE },
200 { .name = MT_CLS_NSMU,
201 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP },
202 { .name = MT_CLS_SERIAL,
203 .quirks = MT_QUIRK_ALWAYS_VALID},
204 { .name = MT_CLS_CONFIDENCE,
205 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE },
206 { .name = MT_CLS_CONFIDENCE_CONTACT_ID,
207 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE |
208 MT_QUIRK_SLOT_IS_CONTACTID },
209 { .name = MT_CLS_CONFIDENCE_MINUS_ONE,
210 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE |
211 MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE },
212 { .name = MT_CLS_DUAL_INRANGE_CONTACTID,
213 .quirks = MT_QUIRK_VALID_IS_INRANGE |
214 MT_QUIRK_SLOT_IS_CONTACTID,
215 .maxcontacts = 2 },
216 { .name = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
217 .quirks = MT_QUIRK_VALID_IS_INRANGE |
218 MT_QUIRK_SLOT_IS_CONTACTNUMBER,
219 .maxcontacts = 2 },
220 { .name = MT_CLS_INRANGE_CONTACTNUMBER,
221 .quirks = MT_QUIRK_VALID_IS_INRANGE |
222 MT_QUIRK_SLOT_IS_CONTACTNUMBER },
223 { .name = MT_CLS_WIN_8,
224 .quirks = MT_QUIRK_ALWAYS_VALID |
225 MT_QUIRK_IGNORE_DUPLICATES |
226 MT_QUIRK_HOVERING |
227 MT_QUIRK_CONTACT_CNT_ACCURATE |
228 MT_QUIRK_STICKY_FINGERS },
229 { .name = MT_CLS_EXPORT_ALL_INPUTS,
230 .quirks = MT_QUIRK_ALWAYS_VALID |
231 MT_QUIRK_CONTACT_CNT_ACCURATE,
232 .export_all_inputs = true },
233 { .name = MT_CLS_WIN_8_DUAL,
234 .quirks = MT_QUIRK_ALWAYS_VALID |
235 MT_QUIRK_IGNORE_DUPLICATES |
236 MT_QUIRK_HOVERING |
237 MT_QUIRK_CONTACT_CNT_ACCURATE,
238 .export_all_inputs = true },
239
240
241
242
243 { .name = MT_CLS_3M,
244 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE |
245 MT_QUIRK_SLOT_IS_CONTACTID |
246 MT_QUIRK_TOUCH_SIZE_SCALING,
247 .sn_move = 2048,
248 .sn_width = 128,
249 .sn_height = 128,
250 .maxcontacts = 60,
251 },
252 { .name = MT_CLS_EGALAX,
253 .quirks = MT_QUIRK_SLOT_IS_CONTACTID |
254 MT_QUIRK_VALID_IS_INRANGE,
255 .sn_move = 4096,
256 .sn_pressure = 32,
257 },
258 { .name = MT_CLS_EGALAX_SERIAL,
259 .quirks = MT_QUIRK_SLOT_IS_CONTACTID |
260 MT_QUIRK_ALWAYS_VALID,
261 .sn_move = 4096,
262 .sn_pressure = 32,
263 },
264 { .name = MT_CLS_TOPSEED,
265 .quirks = MT_QUIRK_ALWAYS_VALID,
266 .is_indirect = true,
267 .maxcontacts = 2,
268 },
269 { .name = MT_CLS_PANASONIC,
270 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP,
271 .maxcontacts = 4 },
272 { .name = MT_CLS_GENERALTOUCH_TWOFINGERS,
273 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP |
274 MT_QUIRK_VALID_IS_INRANGE |
275 MT_QUIRK_SLOT_IS_CONTACTID,
276 .maxcontacts = 2
277 },
278 { .name = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
279 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP |
280 MT_QUIRK_SLOT_IS_CONTACTID
281 },
282
283 { .name = MT_CLS_FLATFROG,
284 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP |
285 MT_QUIRK_NO_AREA,
286 .sn_move = 2048,
287 .maxcontacts = 40,
288 },
289 { .name = MT_CLS_LG,
290 .quirks = MT_QUIRK_ALWAYS_VALID |
291 MT_QUIRK_FIX_CONST_CONTACT_ID |
292 MT_QUIRK_IGNORE_DUPLICATES |
293 MT_QUIRK_HOVERING |
294 MT_QUIRK_CONTACT_CNT_ACCURATE },
295 { .name = MT_CLS_ASUS,
296 .quirks = MT_QUIRK_ALWAYS_VALID |
297 MT_QUIRK_CONTACT_CNT_ACCURATE |
298 MT_QUIRK_ASUS_CUSTOM_UP },
299 { .name = MT_CLS_VTL,
300 .quirks = MT_QUIRK_ALWAYS_VALID |
301 MT_QUIRK_CONTACT_CNT_ACCURATE |
302 MT_QUIRK_FORCE_GET_FEATURE,
303 },
304 { .name = MT_CLS_GOOGLE,
305 .quirks = MT_QUIRK_ALWAYS_VALID |
306 MT_QUIRK_CONTACT_CNT_ACCURATE |
307 MT_QUIRK_SLOT_IS_CONTACTID |
308 MT_QUIRK_HOVERING
309 },
310 { }
311};
312
313static ssize_t mt_show_quirks(struct device *dev,
314 struct device_attribute *attr,
315 char *buf)
316{
317 struct hid_device *hdev = to_hid_device(dev);
318 struct mt_device *td = hid_get_drvdata(hdev);
319
320 return sprintf(buf, "%u\n", td->mtclass.quirks);
321}
322
323static ssize_t mt_set_quirks(struct device *dev,
324 struct device_attribute *attr,
325 const char *buf, size_t count)
326{
327 struct hid_device *hdev = to_hid_device(dev);
328 struct mt_device *td = hid_get_drvdata(hdev);
329
330 unsigned long val;
331
332 if (kstrtoul(buf, 0, &val))
333 return -EINVAL;
334
335 td->mtclass.quirks = val;
336
337 if (td->cc_index < 0)
338 td->mtclass.quirks &= ~MT_QUIRK_CONTACT_CNT_ACCURATE;
339
340 return count;
341}
342
343static DEVICE_ATTR(quirks, S_IWUSR | S_IRUGO, mt_show_quirks, mt_set_quirks);
344
345static struct attribute *sysfs_attrs[] = {
346 &dev_attr_quirks.attr,
347 NULL
348};
349
350static const struct attribute_group mt_attribute_group = {
351 .attrs = sysfs_attrs
352};
353
354static void mt_get_feature(struct hid_device *hdev, struct hid_report *report)
355{
356 struct mt_device *td = hid_get_drvdata(hdev);
357 int ret, size = hid_report_len(report);
358 u8 *buf;
359
360
361
362
363
364 if (td->initial_quirks & HID_QUIRK_NO_INIT_REPORTS)
365 return;
366
367 buf = hid_alloc_report_buf(report, GFP_KERNEL);
368 if (!buf)
369 return;
370
371 ret = hid_hw_raw_request(hdev, report->id, buf, size,
372 HID_FEATURE_REPORT, HID_REQ_GET_REPORT);
373 if (ret < 0) {
374 dev_warn(&hdev->dev, "failed to fetch feature %d\n",
375 report->id);
376 } else {
377 ret = hid_report_raw_event(hdev, HID_FEATURE_REPORT, buf,
378 size, 0);
379 if (ret)
380 dev_warn(&hdev->dev, "failed to report feature\n");
381 }
382
383 kfree(buf);
384}
385
386static void mt_feature_mapping(struct hid_device *hdev,
387 struct hid_field *field, struct hid_usage *usage)
388{
389 struct mt_device *td = hid_get_drvdata(hdev);
390
391 switch (usage->hid) {
392 case HID_DG_INPUTMODE:
393
394 if (usage->usage_index >= field->report_count) {
395 dev_err(&hdev->dev, "HID_DG_INPUTMODE out of range\n");
396 break;
397 }
398
399 if (td->inputmode < 0) {
400 td->inputmode = field->report->id;
401 td->inputmode_index = usage->usage_index;
402 } else {
403
404
405
406
407
408
409 dev_info(&hdev->dev,
410 "Ignoring the extra HID_DG_INPUTMODE\n");
411 }
412
413 break;
414 case HID_DG_CONTACTMAX:
415 mt_get_feature(hdev, field->report);
416
417 td->maxcontact_report_id = field->report->id;
418 td->maxcontacts = field->value[0];
419 if (!td->maxcontacts &&
420 field->logical_maximum <= MT_MAX_MAXCONTACT)
421 td->maxcontacts = field->logical_maximum;
422 if (td->mtclass.maxcontacts)
423
424 td->maxcontacts = td->mtclass.maxcontacts;
425
426 break;
427 case HID_DG_BUTTONTYPE:
428 if (usage->usage_index >= field->report_count) {
429 dev_err(&hdev->dev, "HID_DG_BUTTONTYPE out of range\n");
430 break;
431 }
432
433 mt_get_feature(hdev, field->report);
434 if (field->value[usage->usage_index] == MT_BUTTONTYPE_CLICKPAD)
435 td->is_buttonpad = true;
436
437 break;
438 case 0xff0000c5:
439
440 if (usage->usage_index == 0)
441 mt_get_feature(hdev, field->report);
442 break;
443 }
444}
445
446static void set_abs(struct input_dev *input, unsigned int code,
447 struct hid_field *field, int snratio)
448{
449 int fmin = field->logical_minimum;
450 int fmax = field->logical_maximum;
451 int fuzz = snratio ? (fmax - fmin) / snratio : 0;
452 input_set_abs_params(input, code, fmin, fmax, fuzz, 0);
453 input_abs_set_res(input, code, hidinput_calc_abs_res(field, code));
454}
455
456static void mt_store_field(struct hid_usage *usage, struct mt_device *td,
457 struct hid_input *hi)
458{
459 struct mt_fields *f = td->fields;
460
461 if (f->length >= HID_MAX_FIELDS)
462 return;
463
464 f->usages[f->length++] = usage->hid;
465}
466
467static int mt_touch_input_mapping(struct hid_device *hdev, struct hid_input *hi,
468 struct hid_field *field, struct hid_usage *usage,
469 unsigned long **bit, int *max)
470{
471 struct mt_device *td = hid_get_drvdata(hdev);
472 struct mt_class *cls = &td->mtclass;
473 int code;
474 struct hid_usage *prev_usage = NULL;
475
476 if (field->application == HID_DG_TOUCHSCREEN)
477 td->mt_flags |= INPUT_MT_DIRECT;
478
479
480
481
482 if (field->application == HID_DG_TOUCHPAD ||
483 (usage->hid & HID_USAGE_PAGE) == HID_UP_BUTTON) {
484 td->mt_flags |= INPUT_MT_POINTER;
485 td->inputmode_value = MT_INPUTMODE_TOUCHPAD;
486 }
487
488
489 if ((usage->hid & HID_USAGE_PAGE) == HID_UP_BUTTON)
490 td->buttons_count++;
491
492 if (usage->usage_index)
493 prev_usage = &field->usage[usage->usage_index - 1];
494
495 switch (usage->hid & HID_USAGE_PAGE) {
496
497 case HID_UP_GENDESK:
498 switch (usage->hid) {
499 case HID_GD_X:
500 if (prev_usage && (prev_usage->hid == usage->hid)) {
501 hid_map_usage(hi, usage, bit, max,
502 EV_ABS, ABS_MT_TOOL_X);
503 set_abs(hi->input, ABS_MT_TOOL_X, field,
504 cls->sn_move);
505 } else {
506 hid_map_usage(hi, usage, bit, max,
507 EV_ABS, ABS_MT_POSITION_X);
508 set_abs(hi->input, ABS_MT_POSITION_X, field,
509 cls->sn_move);
510 }
511
512 mt_store_field(usage, td, hi);
513 return 1;
514 case HID_GD_Y:
515 if (prev_usage && (prev_usage->hid == usage->hid)) {
516 hid_map_usage(hi, usage, bit, max,
517 EV_ABS, ABS_MT_TOOL_Y);
518 set_abs(hi->input, ABS_MT_TOOL_Y, field,
519 cls->sn_move);
520 } else {
521 hid_map_usage(hi, usage, bit, max,
522 EV_ABS, ABS_MT_POSITION_Y);
523 set_abs(hi->input, ABS_MT_POSITION_Y, field,
524 cls->sn_move);
525 }
526
527 mt_store_field(usage, td, hi);
528 return 1;
529 }
530 return 0;
531
532 case HID_UP_DIGITIZER:
533 switch (usage->hid) {
534 case HID_DG_INRANGE:
535 if (cls->quirks & MT_QUIRK_HOVERING) {
536 hid_map_usage(hi, usage, bit, max,
537 EV_ABS, ABS_MT_DISTANCE);
538 input_set_abs_params(hi->input,
539 ABS_MT_DISTANCE, 0, 1, 0, 0);
540 }
541 mt_store_field(usage, td, hi);
542 return 1;
543 case HID_DG_CONFIDENCE:
544 if ((cls->name == MT_CLS_WIN_8 ||
545 cls->name == MT_CLS_WIN_8_DUAL) &&
546 field->application == HID_DG_TOUCHPAD)
547 cls->quirks |= MT_QUIRK_CONFIDENCE;
548 mt_store_field(usage, td, hi);
549 return 1;
550 case HID_DG_TIPSWITCH:
551 hid_map_usage(hi, usage, bit, max, EV_KEY, BTN_TOUCH);
552 input_set_capability(hi->input, EV_KEY, BTN_TOUCH);
553 mt_store_field(usage, td, hi);
554 return 1;
555 case HID_DG_CONTACTID:
556 mt_store_field(usage, td, hi);
557 td->touches_by_report++;
558 td->mt_report_id = field->report->id;
559 return 1;
560 case HID_DG_WIDTH:
561 hid_map_usage(hi, usage, bit, max,
562 EV_ABS, ABS_MT_TOUCH_MAJOR);
563 if (!(cls->quirks & MT_QUIRK_NO_AREA))
564 set_abs(hi->input, ABS_MT_TOUCH_MAJOR, field,
565 cls->sn_width);
566 mt_store_field(usage, td, hi);
567 return 1;
568 case HID_DG_HEIGHT:
569 hid_map_usage(hi, usage, bit, max,
570 EV_ABS, ABS_MT_TOUCH_MINOR);
571 if (!(cls->quirks & MT_QUIRK_NO_AREA)) {
572 set_abs(hi->input, ABS_MT_TOUCH_MINOR, field,
573 cls->sn_height);
574 input_set_abs_params(hi->input,
575 ABS_MT_ORIENTATION, 0, 1, 0, 0);
576 }
577 mt_store_field(usage, td, hi);
578 return 1;
579 case HID_DG_TIPPRESSURE:
580 hid_map_usage(hi, usage, bit, max,
581 EV_ABS, ABS_MT_PRESSURE);
582 set_abs(hi->input, ABS_MT_PRESSURE, field,
583 cls->sn_pressure);
584 mt_store_field(usage, td, hi);
585 return 1;
586 case HID_DG_CONTACTCOUNT:
587
588 if (field->index >= field->report->maxfield ||
589 usage->usage_index >= field->report_count)
590 return 1;
591 td->cc_index = field->index;
592 td->cc_value_index = usage->usage_index;
593 return 1;
594 case HID_DG_CONTACTMAX:
595
596
597 return -1;
598 case HID_DG_TOUCH:
599
600
601 return -1;
602 }
603
604 return 0;
605
606 case HID_UP_BUTTON:
607 code = BTN_MOUSE + ((usage->hid - 1) & HID_USAGE);
608
609
610
611
612 if ((cls->name == MT_CLS_WIN_8 ||
613 cls->name == MT_CLS_WIN_8_DUAL) &&
614 field->application == HID_DG_TOUCHPAD &&
615 (usage->hid & HID_USAGE) > 1)
616 code--;
617 hid_map_usage(hi, usage, bit, max, EV_KEY, code);
618 input_set_capability(hi->input, EV_KEY, code);
619 return 1;
620
621 case 0xff000000:
622
623 return -1;
624 }
625
626 return 0;
627}
628
629static int mt_compute_slot(struct mt_device *td, struct input_dev *input)
630{
631 __s32 quirks = td->mtclass.quirks;
632
633 if (quirks & MT_QUIRK_SLOT_IS_CONTACTID)
634 return td->curdata.contactid;
635
636 if (quirks & MT_QUIRK_CYPRESS)
637 return cypress_compute_slot(td);
638
639 if (quirks & MT_QUIRK_SLOT_IS_CONTACTNUMBER)
640 return td->num_received;
641
642 if (quirks & MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE)
643 return td->curdata.contactid - 1;
644
645 return input_mt_get_slot_by_key(input, td->curdata.contactid);
646}
647
648
649
650
651
652static void mt_complete_slot(struct mt_device *td, struct input_dev *input)
653{
654 if ((td->mtclass.quirks & MT_QUIRK_CONTACT_CNT_ACCURATE) &&
655 td->num_received >= td->num_expected)
656 return;
657
658 if (td->curvalid || (td->mtclass.quirks & MT_QUIRK_ALWAYS_VALID)) {
659 int active;
660 int slotnum = mt_compute_slot(td, input);
661 struct mt_slot *s = &td->curdata;
662 struct input_mt *mt = input->mt;
663
664 if (slotnum < 0 || slotnum >= td->maxcontacts)
665 return;
666
667 if ((td->mtclass.quirks & MT_QUIRK_IGNORE_DUPLICATES) && mt) {
668 struct input_mt_slot *slot = &mt->slots[slotnum];
669 if (input_mt_is_active(slot) &&
670 input_mt_is_used(mt, slot))
671 return;
672 }
673
674 if (!(td->mtclass.quirks & MT_QUIRK_CONFIDENCE))
675 s->confidence_state = 1;
676 active = (s->touch_state || s->inrange_state) &&
677 s->confidence_state;
678
679 input_mt_slot(input, slotnum);
680 input_mt_report_slot_state(input, MT_TOOL_FINGER, active);
681 if (active) {
682
683 int wide = (s->w > s->h);
684 int major = max(s->w, s->h);
685 int minor = min(s->w, s->h);
686
687
688
689
690
691 if (td->mtclass.quirks & MT_QUIRK_TOUCH_SIZE_SCALING) {
692 major = major >> 1;
693 minor = minor >> 1;
694 }
695
696 input_event(input, EV_ABS, ABS_MT_POSITION_X, s->x);
697 input_event(input, EV_ABS, ABS_MT_POSITION_Y, s->y);
698 input_event(input, EV_ABS, ABS_MT_TOOL_X, s->cx);
699 input_event(input, EV_ABS, ABS_MT_TOOL_Y, s->cy);
700 input_event(input, EV_ABS, ABS_MT_DISTANCE,
701 !s->touch_state);
702 input_event(input, EV_ABS, ABS_MT_ORIENTATION, wide);
703 input_event(input, EV_ABS, ABS_MT_PRESSURE, s->p);
704 input_event(input, EV_ABS, ABS_MT_TOUCH_MAJOR, major);
705 input_event(input, EV_ABS, ABS_MT_TOUCH_MINOR, minor);
706
707 set_bit(MT_IO_FLAGS_ACTIVE_SLOTS, &td->mt_io_flags);
708 }
709 }
710
711 td->num_received++;
712}
713
714
715
716
717
718static void mt_sync_frame(struct mt_device *td, struct input_dev *input)
719{
720 input_mt_sync_frame(input);
721 input_sync(input);
722 td->num_received = 0;
723 if (test_bit(MT_IO_FLAGS_ACTIVE_SLOTS, &td->mt_io_flags))
724 set_bit(MT_IO_FLAGS_PENDING_SLOTS, &td->mt_io_flags);
725 else
726 clear_bit(MT_IO_FLAGS_PENDING_SLOTS, &td->mt_io_flags);
727 clear_bit(MT_IO_FLAGS_ACTIVE_SLOTS, &td->mt_io_flags);
728}
729
730static int mt_touch_event(struct hid_device *hid, struct hid_field *field,
731 struct hid_usage *usage, __s32 value)
732{
733
734 if (hid->claimed & HID_CLAIMED_HIDDEV && hid->hiddev_hid_event)
735 hid->hiddev_hid_event(hid, field, usage, value);
736
737 return 1;
738}
739
740static void mt_process_mt_event(struct hid_device *hid, struct hid_field *field,
741 struct hid_usage *usage, __s32 value)
742{
743 struct mt_device *td = hid_get_drvdata(hid);
744 __s32 quirks = td->mtclass.quirks;
745 struct input_dev *input = field->hidinput->input;
746
747 if (hid->claimed & HID_CLAIMED_INPUT) {
748 switch (usage->hid) {
749 case HID_DG_INRANGE:
750 if (quirks & MT_QUIRK_VALID_IS_INRANGE)
751 td->curvalid = value;
752 if (quirks & MT_QUIRK_HOVERING)
753 td->curdata.inrange_state = value;
754 break;
755 case HID_DG_TIPSWITCH:
756 if (quirks & MT_QUIRK_NOT_SEEN_MEANS_UP)
757 td->curvalid = value;
758 td->curdata.touch_state = value;
759 break;
760 case HID_DG_CONFIDENCE:
761 if (quirks & MT_QUIRK_CONFIDENCE)
762 td->curdata.confidence_state = value;
763 if (quirks & MT_QUIRK_VALID_IS_CONFIDENCE)
764 td->curvalid = value;
765 break;
766 case HID_DG_CONTACTID:
767 td->curdata.contactid = value;
768 break;
769 case HID_DG_TIPPRESSURE:
770 td->curdata.p = value;
771 break;
772 case HID_GD_X:
773 if (usage->code == ABS_MT_TOOL_X)
774 td->curdata.cx = value;
775 else
776 td->curdata.x = value;
777 break;
778 case HID_GD_Y:
779 if (usage->code == ABS_MT_TOOL_Y)
780 td->curdata.cy = value;
781 else
782 td->curdata.y = value;
783 break;
784 case HID_DG_WIDTH:
785 td->curdata.w = value;
786 break;
787 case HID_DG_HEIGHT:
788 td->curdata.h = value;
789 break;
790 case HID_DG_CONTACTCOUNT:
791 break;
792 case HID_DG_TOUCH:
793
794 break;
795
796 default:
797 if (usage->type)
798 input_event(input, usage->type, usage->code,
799 value);
800 return;
801 }
802
803 if (usage->usage_index + 1 == field->report_count) {
804
805 if (usage->hid == td->last_slot_field)
806 mt_complete_slot(td, field->hidinput->input);
807 }
808
809 }
810}
811
812static void mt_touch_report(struct hid_device *hid, struct hid_report *report)
813{
814 struct mt_device *td = hid_get_drvdata(hid);
815 struct hid_field *field;
816 unsigned count;
817 int r, n;
818
819
820 if (test_and_set_bit(MT_IO_FLAGS_RUNNING, &td->mt_io_flags))
821 return;
822
823
824
825
826
827 if (td->cc_index >= 0) {
828 struct hid_field *field = report->field[td->cc_index];
829 int value = field->value[td->cc_value_index];
830 if (value)
831 td->num_expected = value;
832 }
833
834 for (r = 0; r < report->maxfield; r++) {
835 field = report->field[r];
836 count = field->report_count;
837
838 if (!(HID_MAIN_ITEM_VARIABLE & field->flags))
839 continue;
840
841 for (n = 0; n < count; n++)
842 mt_process_mt_event(hid, field, &field->usage[n],
843 field->value[n]);
844 }
845
846 if (td->num_received >= td->num_expected)
847 mt_sync_frame(td, report->field[0]->hidinput->input);
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867 if (td->mtclass.quirks & MT_QUIRK_STICKY_FINGERS) {
868 if (test_bit(MT_IO_FLAGS_PENDING_SLOTS, &td->mt_io_flags))
869 mod_timer(&td->release_timer,
870 jiffies + msecs_to_jiffies(100));
871 else
872 del_timer(&td->release_timer);
873 }
874
875 clear_bit(MT_IO_FLAGS_RUNNING, &td->mt_io_flags);
876}
877
878static int mt_touch_input_configured(struct hid_device *hdev,
879 struct hid_input *hi)
880{
881 struct mt_device *td = hid_get_drvdata(hdev);
882 struct mt_class *cls = &td->mtclass;
883 struct input_dev *input = hi->input;
884 int ret;
885
886 if (!td->maxcontacts)
887 td->maxcontacts = MT_DEFAULT_MAXCONTACT;
888
889 mt_post_parse(td);
890 if (td->serial_maybe)
891 mt_post_parse_default_settings(td);
892
893 if (cls->is_indirect)
894 td->mt_flags |= INPUT_MT_POINTER;
895
896 if (cls->quirks & MT_QUIRK_NOT_SEEN_MEANS_UP)
897 td->mt_flags |= INPUT_MT_DROP_UNUSED;
898
899
900 if ((td->mt_flags & INPUT_MT_POINTER) && (td->buttons_count == 1))
901 td->is_buttonpad = true;
902
903 if (td->is_buttonpad)
904 __set_bit(INPUT_PROP_BUTTONPAD, input->propbit);
905
906 ret = input_mt_init_slots(input, td->maxcontacts, td->mt_flags);
907 if (ret)
908 return ret;
909
910 td->mt_flags = 0;
911 return 0;
912}
913
914#define mt_map_key_clear(c) hid_map_usage_clear(hi, usage, bit, \
915 max, EV_KEY, (c))
916static int mt_input_mapping(struct hid_device *hdev, struct hid_input *hi,
917 struct hid_field *field, struct hid_usage *usage,
918 unsigned long **bit, int *max)
919{
920 struct mt_device *td = hid_get_drvdata(hdev);
921
922
923
924
925
926
927
928 if (!td->mtclass.export_all_inputs &&
929 field->application != HID_DG_TOUCHSCREEN &&
930 field->application != HID_DG_PEN &&
931 field->application != HID_DG_TOUCHPAD &&
932 field->application != HID_GD_KEYBOARD &&
933 field->application != HID_GD_SYSTEM_CONTROL &&
934 field->application != HID_CP_CONSUMER_CONTROL &&
935 field->application != HID_GD_WIRELESS_RADIO_CTLS &&
936 !(field->application == HID_VD_ASUS_CUSTOM_MEDIA_KEYS &&
937 td->mtclass.quirks & MT_QUIRK_ASUS_CUSTOM_UP))
938 return -1;
939
940
941
942
943
944
945 if (field->application == HID_VD_ASUS_CUSTOM_MEDIA_KEYS &&
946 td->mtclass.quirks & MT_QUIRK_ASUS_CUSTOM_UP &&
947 (usage->hid & HID_USAGE_PAGE) == HID_UP_CUSTOM) {
948 set_bit(EV_REP, hi->input->evbit);
949 if (field->flags & HID_MAIN_ITEM_VARIABLE)
950 field->flags &= ~HID_MAIN_ITEM_VARIABLE;
951 switch (usage->hid & HID_USAGE) {
952 case 0x10: mt_map_key_clear(KEY_BRIGHTNESSDOWN); break;
953 case 0x20: mt_map_key_clear(KEY_BRIGHTNESSUP); break;
954 case 0x35: mt_map_key_clear(KEY_DISPLAY_OFF); break;
955 case 0x6b: mt_map_key_clear(KEY_F21); break;
956 case 0x6c: mt_map_key_clear(KEY_SLEEP); break;
957 default:
958 return -1;
959 }
960 return 1;
961 }
962
963
964
965
966
967
968
969
970 if (field->physical == HID_DG_STYLUS)
971 return 0;
972 else if ((field->physical == 0) &&
973 (field->report->id != td->mt_report_id) &&
974 (td->mt_report_id != -1))
975 return 0;
976
977 if (field->application == HID_DG_TOUCHSCREEN ||
978 field->application == HID_DG_TOUCHPAD)
979 return mt_touch_input_mapping(hdev, hi, field, usage, bit, max);
980
981
982 return 0;
983}
984
985static int mt_input_mapped(struct hid_device *hdev, struct hid_input *hi,
986 struct hid_field *field, struct hid_usage *usage,
987 unsigned long **bit, int *max)
988{
989
990
991
992
993 if (field->physical == HID_DG_STYLUS)
994 return 0;
995
996 if (field->application == HID_DG_TOUCHSCREEN ||
997 field->application == HID_DG_TOUCHPAD) {
998
999 return -1;
1000 }
1001
1002
1003 return 0;
1004}
1005
1006static int mt_event(struct hid_device *hid, struct hid_field *field,
1007 struct hid_usage *usage, __s32 value)
1008{
1009 struct mt_device *td = hid_get_drvdata(hid);
1010
1011 if (field->report->id == td->mt_report_id)
1012 return mt_touch_event(hid, field, usage, value);
1013
1014 return 0;
1015}
1016
1017static void mt_report(struct hid_device *hid, struct hid_report *report)
1018{
1019 struct mt_device *td = hid_get_drvdata(hid);
1020 struct hid_field *field = report->field[0];
1021
1022 if (!(hid->claimed & HID_CLAIMED_INPUT))
1023 return;
1024
1025 if (report->id == td->mt_report_id)
1026 return mt_touch_report(hid, report);
1027
1028 if (field && field->hidinput && field->hidinput->input)
1029 input_sync(field->hidinput->input);
1030}
1031
1032static void mt_set_input_mode(struct hid_device *hdev)
1033{
1034 struct mt_device *td = hid_get_drvdata(hdev);
1035 struct hid_report *r;
1036 struct hid_report_enum *re;
1037 struct mt_class *cls = &td->mtclass;
1038 char *buf;
1039 int report_len;
1040
1041 if (td->inputmode < 0)
1042 return;
1043
1044 re = &(hdev->report_enum[HID_FEATURE_REPORT]);
1045 r = re->report_id_hash[td->inputmode];
1046 if (r) {
1047 if (cls->quirks & MT_QUIRK_FORCE_GET_FEATURE) {
1048 report_len = hid_report_len(r);
1049 buf = hid_alloc_report_buf(r, GFP_KERNEL);
1050 if (!buf) {
1051 hid_err(hdev, "failed to allocate buffer for report\n");
1052 return;
1053 }
1054 hid_hw_raw_request(hdev, r->id, buf, report_len,
1055 HID_FEATURE_REPORT,
1056 HID_REQ_GET_REPORT);
1057 kfree(buf);
1058 }
1059 r->field[0]->value[td->inputmode_index] = td->inputmode_value;
1060 hid_hw_request(hdev, r, HID_REQ_SET_REPORT);
1061 }
1062}
1063
1064static void mt_set_maxcontacts(struct hid_device *hdev)
1065{
1066 struct mt_device *td = hid_get_drvdata(hdev);
1067 struct hid_report *r;
1068 struct hid_report_enum *re;
1069 int fieldmax, max;
1070
1071 if (td->maxcontact_report_id < 0)
1072 return;
1073
1074 if (!td->mtclass.maxcontacts)
1075 return;
1076
1077 re = &hdev->report_enum[HID_FEATURE_REPORT];
1078 r = re->report_id_hash[td->maxcontact_report_id];
1079 if (r) {
1080 max = td->mtclass.maxcontacts;
1081 fieldmax = r->field[0]->logical_maximum;
1082 max = min(fieldmax, max);
1083 if (r->field[0]->value[0] != max) {
1084 r->field[0]->value[0] = max;
1085 hid_hw_request(hdev, r, HID_REQ_SET_REPORT);
1086 }
1087 }
1088}
1089
1090static void mt_post_parse_default_settings(struct mt_device *td)
1091{
1092 __s32 quirks = td->mtclass.quirks;
1093
1094
1095 if (td->touches_by_report == 1) {
1096 quirks |= MT_QUIRK_ALWAYS_VALID;
1097 quirks &= ~MT_QUIRK_NOT_SEEN_MEANS_UP;
1098 quirks &= ~MT_QUIRK_VALID_IS_INRANGE;
1099 quirks &= ~MT_QUIRK_VALID_IS_CONFIDENCE;
1100 quirks &= ~MT_QUIRK_CONTACT_CNT_ACCURATE;
1101 }
1102
1103 td->mtclass.quirks = quirks;
1104}
1105
1106static void mt_post_parse(struct mt_device *td)
1107{
1108 struct mt_fields *f = td->fields;
1109 struct mt_class *cls = &td->mtclass;
1110
1111 if (td->touches_by_report > 0) {
1112 int field_count_per_touch = f->length / td->touches_by_report;
1113 td->last_slot_field = f->usages[field_count_per_touch - 1];
1114 }
1115
1116 if (td->cc_index < 0)
1117 cls->quirks &= ~MT_QUIRK_CONTACT_CNT_ACCURATE;
1118}
1119
1120static int mt_input_configured(struct hid_device *hdev, struct hid_input *hi)
1121{
1122 struct mt_device *td = hid_get_drvdata(hdev);
1123 char *name;
1124 const char *suffix = NULL;
1125 struct hid_field *field = hi->report->field[0];
1126 int ret;
1127
1128 if (hi->report->id == td->mt_report_id) {
1129 ret = mt_touch_input_configured(hdev, hi);
1130 if (ret)
1131 return ret;
1132 }
1133
1134
1135
1136
1137
1138
1139 if (hi->report->field[0]->physical == HID_DG_STYLUS) {
1140 suffix = "Pen";
1141
1142 __set_bit(BTN_STYLUS, hi->input->keybit);
1143 } else {
1144 switch (field->application) {
1145 case HID_GD_KEYBOARD:
1146 suffix = "Keyboard";
1147 break;
1148 case HID_GD_KEYPAD:
1149 suffix = "Keypad";
1150 break;
1151 case HID_GD_MOUSE:
1152 suffix = "Mouse";
1153 break;
1154 case HID_DG_STYLUS:
1155 suffix = "Pen";
1156
1157 __set_bit(BTN_STYLUS, hi->input->keybit);
1158 break;
1159 case HID_DG_TOUCHSCREEN:
1160
1161 break;
1162 case HID_DG_TOUCHPAD:
1163 suffix = "Touchpad";
1164 break;
1165 case HID_GD_SYSTEM_CONTROL:
1166 suffix = "System Control";
1167 break;
1168 case HID_CP_CONSUMER_CONTROL:
1169 suffix = "Consumer Control";
1170 break;
1171 case HID_GD_WIRELESS_RADIO_CTLS:
1172 suffix = "Wireless Radio Control";
1173 break;
1174 case HID_VD_ASUS_CUSTOM_MEDIA_KEYS:
1175 suffix = "Custom Media Keys";
1176 break;
1177 default:
1178 suffix = "UNKNOWN";
1179 break;
1180 }
1181 }
1182
1183 if (suffix) {
1184 name = devm_kzalloc(&hi->input->dev,
1185 strlen(hdev->name) + strlen(suffix) + 2,
1186 GFP_KERNEL);
1187 if (name) {
1188 sprintf(name, "%s %s", hdev->name, suffix);
1189 hi->input->name = name;
1190 }
1191 }
1192
1193 return 0;
1194}
1195
1196static void mt_fix_const_field(struct hid_field *field, unsigned int usage)
1197{
1198 if (field->usage[0].hid != usage ||
1199 !(field->flags & HID_MAIN_ITEM_CONSTANT))
1200 return;
1201
1202 field->flags &= ~HID_MAIN_ITEM_CONSTANT;
1203 field->flags |= HID_MAIN_ITEM_VARIABLE;
1204}
1205
1206static void mt_fix_const_fields(struct hid_device *hdev, unsigned int usage)
1207{
1208 struct hid_report *report;
1209 int i;
1210
1211 list_for_each_entry(report,
1212 &hdev->report_enum[HID_INPUT_REPORT].report_list,
1213 list) {
1214
1215 if (!report->maxfield)
1216 continue;
1217
1218 for (i = 0; i < report->maxfield; i++)
1219 if (report->field[i]->maxusage >= 1)
1220 mt_fix_const_field(report->field[i], usage);
1221 }
1222}
1223
1224static void mt_release_contacts(struct hid_device *hid)
1225{
1226 struct hid_input *hidinput;
1227 struct mt_device *td = hid_get_drvdata(hid);
1228
1229 list_for_each_entry(hidinput, &hid->inputs, list) {
1230 struct input_dev *input_dev = hidinput->input;
1231 struct input_mt *mt = input_dev->mt;
1232 int i;
1233
1234 if (mt) {
1235 for (i = 0; i < mt->num_slots; i++) {
1236 input_mt_slot(input_dev, i);
1237 input_mt_report_slot_state(input_dev,
1238 MT_TOOL_FINGER,
1239 false);
1240 }
1241 input_mt_sync_frame(input_dev);
1242 input_sync(input_dev);
1243 }
1244 }
1245
1246 td->num_received = 0;
1247}
1248
1249static void mt_expired_timeout(unsigned long arg)
1250{
1251 struct hid_device *hdev = (void *)arg;
1252 struct mt_device *td = hid_get_drvdata(hdev);
1253
1254
1255
1256
1257
1258 if (test_and_set_bit(MT_IO_FLAGS_RUNNING, &td->mt_io_flags))
1259 return;
1260 if (test_bit(MT_IO_FLAGS_PENDING_SLOTS, &td->mt_io_flags))
1261 mt_release_contacts(hdev);
1262 clear_bit(MT_IO_FLAGS_RUNNING, &td->mt_io_flags);
1263}
1264
1265static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id)
1266{
1267 int ret, i;
1268 struct mt_device *td;
1269 struct mt_class *mtclass = mt_classes;
1270
1271 for (i = 0; mt_classes[i].name ; i++) {
1272 if (id->driver_data == mt_classes[i].name) {
1273 mtclass = &(mt_classes[i]);
1274 break;
1275 }
1276 }
1277
1278 td = devm_kzalloc(&hdev->dev, sizeof(struct mt_device), GFP_KERNEL);
1279 if (!td) {
1280 dev_err(&hdev->dev, "cannot allocate multitouch data\n");
1281 return -ENOMEM;
1282 }
1283 td->mtclass = *mtclass;
1284 td->inputmode = -1;
1285 td->maxcontact_report_id = -1;
1286 td->inputmode_value = MT_INPUTMODE_TOUCHSCREEN;
1287 td->cc_index = -1;
1288 td->mt_report_id = -1;
1289 hid_set_drvdata(hdev, td);
1290
1291 td->fields = devm_kzalloc(&hdev->dev, sizeof(struct mt_fields),
1292 GFP_KERNEL);
1293 if (!td->fields) {
1294 dev_err(&hdev->dev, "cannot allocate multitouch fields data\n");
1295 return -ENOMEM;
1296 }
1297
1298 if (id->vendor == HID_ANY_ID && id->product == HID_ANY_ID)
1299 td->serial_maybe = true;
1300
1301
1302
1303
1304 td->initial_quirks = hdev->quirks;
1305
1306
1307
1308
1309 hdev->quirks |= HID_QUIRK_NO_INPUT_SYNC;
1310
1311
1312
1313
1314
1315
1316 hdev->quirks |= HID_QUIRK_MULTI_INPUT;
1317 hdev->quirks |= HID_QUIRK_NO_EMPTY_INPUT;
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332 hdev->quirks |= HID_QUIRK_NO_INIT_REPORTS;
1333
1334 setup_timer(&td->release_timer, mt_expired_timeout, (long)hdev);
1335
1336 ret = hid_parse(hdev);
1337 if (ret != 0)
1338 return ret;
1339
1340 if (mtclass->quirks & MT_QUIRK_FIX_CONST_CONTACT_ID)
1341 mt_fix_const_fields(hdev, HID_DG_CONTACTID);
1342
1343 ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
1344 if (ret)
1345 return ret;
1346
1347 ret = sysfs_create_group(&hdev->dev.kobj, &mt_attribute_group);
1348 if (ret)
1349 dev_warn(&hdev->dev, "Cannot allocate sysfs group for %s\n",
1350 hdev->name);
1351
1352 mt_set_maxcontacts(hdev);
1353 mt_set_input_mode(hdev);
1354
1355
1356 devm_kfree(&hdev->dev, td->fields);
1357 td->fields = NULL;
1358
1359 return 0;
1360}
1361
1362#ifdef CONFIG_PM
1363static int mt_reset_resume(struct hid_device *hdev)
1364{
1365 mt_release_contacts(hdev);
1366 mt_set_maxcontacts(hdev);
1367 mt_set_input_mode(hdev);
1368 return 0;
1369}
1370
1371static int mt_resume(struct hid_device *hdev)
1372{
1373
1374
1375
1376
1377 hid_hw_idle(hdev, 0, 0, HID_REQ_SET_IDLE);
1378
1379 return 0;
1380}
1381#endif
1382
1383static void mt_remove(struct hid_device *hdev)
1384{
1385 struct mt_device *td = hid_get_drvdata(hdev);
1386
1387 del_timer_sync(&td->release_timer);
1388
1389 sysfs_remove_group(&hdev->dev.kobj, &mt_attribute_group);
1390 hid_hw_stop(hdev);
1391 hdev->quirks = td->initial_quirks;
1392}
1393
1394
1395
1396
1397
1398
1399
1400static const struct hid_device_id mt_devices[] = {
1401
1402
1403 { .driver_data = MT_CLS_3M,
1404 MT_USB_DEVICE(USB_VENDOR_ID_3M,
1405 USB_DEVICE_ID_3M1968) },
1406 { .driver_data = MT_CLS_3M,
1407 MT_USB_DEVICE(USB_VENDOR_ID_3M,
1408 USB_DEVICE_ID_3M2256) },
1409 { .driver_data = MT_CLS_3M,
1410 MT_USB_DEVICE(USB_VENDOR_ID_3M,
1411 USB_DEVICE_ID_3M3266) },
1412
1413
1414 { .driver_data = MT_CLS_WIN_8_DUAL,
1415 HID_DEVICE(BUS_I2C, HID_GROUP_MULTITOUCH_WIN_8,
1416 USB_VENDOR_ID_ALPS_JP,
1417 HID_DEVICE_ID_ALPS_U1_DUAL_PTP) },
1418 { .driver_data = MT_CLS_WIN_8_DUAL,
1419 HID_DEVICE(BUS_I2C, HID_GROUP_MULTITOUCH_WIN_8,
1420 USB_VENDOR_ID_ALPS_JP,
1421 HID_DEVICE_ID_ALPS_U1_DUAL_3BTN_PTP) },
1422
1423
1424 { .driver_data = MT_CLS_WIN_8_DUAL,
1425 HID_DEVICE(BUS_USB, HID_GROUP_MULTITOUCH_WIN_8,
1426 USB_VENDOR_ID_LENOVO,
1427 USB_DEVICE_ID_LENOVO_X1_TAB) },
1428
1429
1430 { .driver_data = MT_CLS_EXPORT_ALL_INPUTS,
1431 MT_USB_DEVICE(USB_VENDOR_ID_ANTON,
1432 USB_DEVICE_ID_ANTON_TOUCH_PAD) },
1433
1434
1435 { .driver_data = MT_CLS_ASUS,
1436 HID_DEVICE(BUS_USB, HID_GROUP_MULTITOUCH_WIN_8,
1437 USB_VENDOR_ID_ASUSTEK,
1438 USB_DEVICE_ID_ASUSTEK_T304_KEYBOARD) },
1439
1440
1441 { .driver_data = MT_CLS_SERIAL,
1442 MT_USB_DEVICE(USB_VENDOR_ID_ATMEL,
1443 USB_DEVICE_ID_ATMEL_MXT_DIGITIZER) },
1444
1445
1446 { .driver_data = MT_CLS_NSMU,
1447 MT_USB_DEVICE(USB_VENDOR_ID_BAANTO,
1448 USB_DEVICE_ID_BAANTO_MT_190W2) },
1449
1450
1451 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
1452 MT_USB_DEVICE(USB_VENDOR_ID_CANDO,
1453 USB_DEVICE_ID_CANDO_MULTI_TOUCH) },
1454 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
1455 MT_USB_DEVICE(USB_VENDOR_ID_CANDO,
1456 USB_DEVICE_ID_CANDO_MULTI_TOUCH_15_6) },
1457
1458
1459 { .driver_data = MT_CLS_NSMU,
1460 MT_USB_DEVICE(USB_VENDOR_ID_CHUNGHWAT,
1461 USB_DEVICE_ID_CHUNGHWAT_MULTITOUCH) },
1462
1463
1464 { .driver_data = MT_CLS_NSMU,
1465 MT_USB_DEVICE(USB_VENDOR_ID_CJTOUCH,
1466 USB_DEVICE_ID_CJTOUCH_MULTI_TOUCH_0020) },
1467 { .driver_data = MT_CLS_NSMU,
1468 MT_USB_DEVICE(USB_VENDOR_ID_CJTOUCH,
1469 USB_DEVICE_ID_CJTOUCH_MULTI_TOUCH_0040) },
1470
1471
1472 { .driver_data = MT_CLS_NSMU,
1473 MT_USB_DEVICE(USB_VENDOR_ID_CVTOUCH,
1474 USB_DEVICE_ID_CVTOUCH_SCREEN) },
1475
1476
1477 { .driver_data = MT_CLS_EGALAX,
1478 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1479 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_480D) },
1480 { .driver_data = MT_CLS_EGALAX,
1481 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1482 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_480E) },
1483
1484
1485 { .driver_data = MT_CLS_EGALAX_SERIAL,
1486 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1487 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7207) },
1488 { .driver_data = MT_CLS_EGALAX,
1489 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1490 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_720C) },
1491 { .driver_data = MT_CLS_EGALAX_SERIAL,
1492 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1493 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7224) },
1494 { .driver_data = MT_CLS_EGALAX_SERIAL,
1495 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1496 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_722A) },
1497 { .driver_data = MT_CLS_EGALAX_SERIAL,
1498 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1499 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_725E) },
1500 { .driver_data = MT_CLS_EGALAX_SERIAL,
1501 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1502 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7262) },
1503 { .driver_data = MT_CLS_EGALAX,
1504 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1505 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_726B) },
1506 { .driver_data = MT_CLS_EGALAX,
1507 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1508 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72A1) },
1509 { .driver_data = MT_CLS_EGALAX_SERIAL,
1510 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1511 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72AA) },
1512 { .driver_data = MT_CLS_EGALAX,
1513 HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
1514 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72C4) },
1515 { .driver_data = MT_CLS_EGALAX,
1516 HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
1517 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72D0) },
1518 { .driver_data = MT_CLS_EGALAX,
1519 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1520 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72FA) },
1521 { .driver_data = MT_CLS_EGALAX,
1522 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1523 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7302) },
1524 { .driver_data = MT_CLS_EGALAX_SERIAL,
1525 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1526 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7349) },
1527 { .driver_data = MT_CLS_EGALAX_SERIAL,
1528 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1529 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_73F7) },
1530 { .driver_data = MT_CLS_EGALAX_SERIAL,
1531 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1532 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_A001) },
1533
1534
1535 { .driver_data = MT_CLS_SERIAL,
1536 MT_USB_DEVICE(USB_VENDOR_ID_ELITEGROUP,
1537 USB_DEVICE_ID_ELITEGROUP_05D8) },
1538
1539
1540 { .driver_data = MT_CLS_FLATFROG,
1541 MT_USB_DEVICE(USB_VENDOR_ID_FLATFROG,
1542 USB_DEVICE_ID_MULTITOUCH_3200) },
1543
1544
1545 { .driver_data = MT_CLS_SERIAL,
1546 MT_USB_DEVICE(USB_VENDOR_ID_CYGNAL,
1547 USB_DEVICE_ID_FOCALTECH_FTXXXX_MULTITOUCH) },
1548
1549
1550 { .driver_data = MT_CLS_GENERALTOUCH_TWOFINGERS,
1551 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
1552 USB_DEVICE_ID_GENERAL_TOUCH_WIN7_TWOFINGERS) },
1553 { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
1554 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
1555 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PWT_TENFINGERS) },
1556 { .driver_data = MT_CLS_GENERALTOUCH_TWOFINGERS,
1557 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
1558 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_0101) },
1559 { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
1560 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
1561 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_0102) },
1562 { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
1563 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
1564 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_0106) },
1565 { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
1566 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
1567 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_010A) },
1568 { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
1569 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
1570 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_E100) },
1571
1572
1573 { .driver_data = MT_CLS_NSMU,
1574 MT_BT_DEVICE(USB_VENDOR_ID_FRUCTEL,
1575 USB_DEVICE_ID_GAMETEL_MT_MODE) },
1576
1577
1578 { .driver_data = MT_CLS_NSMU,
1579 MT_USB_DEVICE(USB_VENDOR_ID_GOODTOUCH,
1580 USB_DEVICE_ID_GOODTOUCH_000f) },
1581
1582
1583 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID,
1584 MT_USB_DEVICE(USB_VENDOR_ID_HANVON_ALT,
1585 USB_DEVICE_ID_HANVON_ALT_MULTITOUCH) },
1586
1587
1588 { .driver_data = MT_CLS_NSMU,
1589 MT_USB_DEVICE(USB_VENDOR_ID_ILITEK,
1590 USB_DEVICE_ID_ILITEK_MULTITOUCH) },
1591
1592
1593 { .driver_data = MT_CLS_LG,
1594 HID_USB_DEVICE(USB_VENDOR_ID_LG,
1595 USB_DEVICE_ID_LG_MELFAS_MT) },
1596
1597
1598 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
1599 MT_USB_DEVICE(USB_VENDOR_ID_ASUS,
1600 USB_DEVICE_ID_ASUS_T91MT)},
1601 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
1602 MT_USB_DEVICE(USB_VENDOR_ID_ASUS,
1603 USB_DEVICE_ID_ASUSTEK_MULTITOUCH_YFO) },
1604 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
1605 MT_USB_DEVICE(USB_VENDOR_ID_TURBOX,
1606 USB_DEVICE_ID_TURBOX_TOUCHSCREEN_MOSART) },
1607
1608
1609 { .driver_data = MT_CLS_PANASONIC,
1610 MT_USB_DEVICE(USB_VENDOR_ID_PANASONIC,
1611 USB_DEVICE_ID_PANABOARD_UBT780) },
1612 { .driver_data = MT_CLS_PANASONIC,
1613 MT_USB_DEVICE(USB_VENDOR_ID_PANASONIC,
1614 USB_DEVICE_ID_PANABOARD_UBT880) },
1615
1616
1617 { .driver_data = MT_CLS_NSMU,
1618 MT_USB_DEVICE(USB_VENDOR_ID_NOVATEK,
1619 USB_DEVICE_ID_NOVATEK_PCT) },
1620
1621
1622 { .driver_data = MT_CLS_NSMU,
1623 HID_DEVICE(BUS_I2C, HID_GROUP_MULTITOUCH_WIN_8,
1624 USB_VENDOR_ID_NTRIG, 0x1b05) },
1625
1626
1627 { .driver_data = MT_CLS_INRANGE_CONTACTNUMBER,
1628 MT_USB_DEVICE(USB_VENDOR_ID_PIXART,
1629 USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN) },
1630 { .driver_data = MT_CLS_INRANGE_CONTACTNUMBER,
1631 MT_USB_DEVICE(USB_VENDOR_ID_PIXART,
1632 USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN1) },
1633 { .driver_data = MT_CLS_INRANGE_CONTACTNUMBER,
1634 MT_USB_DEVICE(USB_VENDOR_ID_PIXART,
1635 USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN2) },
1636
1637
1638 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID,
1639 MT_USB_DEVICE(USB_VENDOR_ID_CANDO,
1640 USB_DEVICE_ID_CANDO_PIXCIR_MULTI_TOUCH) },
1641
1642
1643 { .driver_data = MT_CLS_CONFIDENCE_CONTACT_ID,
1644 MT_USB_DEVICE(USB_VENDOR_ID_QUANTA,
1645 USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3001) },
1646
1647
1648 { .driver_data = MT_CLS_CONFIDENCE,
1649 MT_USB_DEVICE(USB_VENDOR_ID_STANTUM_STM,
1650 USB_DEVICE_ID_MTP_STM)},
1651
1652
1653 { .driver_data = MT_CLS_TOPSEED,
1654 MT_USB_DEVICE(USB_VENDOR_ID_TOPSEED2,
1655 USB_DEVICE_ID_TOPSEED2_PERIPAD_701) },
1656
1657
1658 { .driver_data = MT_CLS_NSMU,
1659 MT_USB_DEVICE(USB_VENDOR_ID_TOUCH_INTL,
1660 USB_DEVICE_ID_TOUCH_INTL_MULTI_TOUCH) },
1661
1662
1663 { .driver_data = MT_CLS_NSMU,
1664 MT_USB_DEVICE(USB_VENDOR_ID_UNITEC,
1665 USB_DEVICE_ID_UNITEC_USB_TOUCH_0709) },
1666 { .driver_data = MT_CLS_NSMU,
1667 MT_USB_DEVICE(USB_VENDOR_ID_UNITEC,
1668 USB_DEVICE_ID_UNITEC_USB_TOUCH_0A19) },
1669
1670
1671 { .driver_data = MT_CLS_VTL,
1672 MT_USB_DEVICE(USB_VENDOR_ID_VTL,
1673 USB_DEVICE_ID_VTL_MULTITOUCH_FF3F) },
1674
1675
1676 { .driver_data = MT_CLS_NSMU,
1677 MT_USB_DEVICE(USB_VENDOR_ID_WISTRON,
1678 USB_DEVICE_ID_WISTRON_OPTICAL_TOUCH) },
1679
1680
1681 { .driver_data = MT_CLS_NSMU,
1682 MT_USB_DEVICE(USB_VENDOR_ID_XAT,
1683 USB_DEVICE_ID_XAT_CSR) },
1684
1685
1686 { .driver_data = MT_CLS_NSMU,
1687 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1688 USB_DEVICE_ID_XIROKU_SPX) },
1689 { .driver_data = MT_CLS_NSMU,
1690 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1691 USB_DEVICE_ID_XIROKU_MPX) },
1692 { .driver_data = MT_CLS_NSMU,
1693 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1694 USB_DEVICE_ID_XIROKU_CSR) },
1695 { .driver_data = MT_CLS_NSMU,
1696 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1697 USB_DEVICE_ID_XIROKU_SPX1) },
1698 { .driver_data = MT_CLS_NSMU,
1699 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1700 USB_DEVICE_ID_XIROKU_MPX1) },
1701 { .driver_data = MT_CLS_NSMU,
1702 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1703 USB_DEVICE_ID_XIROKU_CSR1) },
1704 { .driver_data = MT_CLS_NSMU,
1705 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1706 USB_DEVICE_ID_XIROKU_SPX2) },
1707 { .driver_data = MT_CLS_NSMU,
1708 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1709 USB_DEVICE_ID_XIROKU_MPX2) },
1710 { .driver_data = MT_CLS_NSMU,
1711 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1712 USB_DEVICE_ID_XIROKU_CSR2) },
1713
1714
1715 { .driver_data = MT_CLS_GOOGLE,
1716 HID_DEVICE(HID_BUS_ANY, HID_GROUP_ANY, USB_VENDOR_ID_GOOGLE,
1717 USB_DEVICE_ID_GOOGLE_TOUCH_ROSE) },
1718
1719
1720 { HID_DEVICE(HID_BUS_ANY, HID_GROUP_MULTITOUCH, HID_ANY_ID, HID_ANY_ID) },
1721
1722
1723 { .driver_data = MT_CLS_WIN_8,
1724 HID_DEVICE(HID_BUS_ANY, HID_GROUP_MULTITOUCH_WIN_8,
1725 HID_ANY_ID, HID_ANY_ID) },
1726 { }
1727};
1728MODULE_DEVICE_TABLE(hid, mt_devices);
1729
1730static const struct hid_usage_id mt_grabbed_usages[] = {
1731 { HID_ANY_ID, HID_ANY_ID, HID_ANY_ID },
1732 { HID_ANY_ID - 1, HID_ANY_ID - 1, HID_ANY_ID - 1}
1733};
1734
1735static struct hid_driver mt_driver = {
1736 .name = "hid-multitouch",
1737 .id_table = mt_devices,
1738 .probe = mt_probe,
1739 .remove = mt_remove,
1740 .input_mapping = mt_input_mapping,
1741 .input_mapped = mt_input_mapped,
1742 .input_configured = mt_input_configured,
1743 .feature_mapping = mt_feature_mapping,
1744 .usage_table = mt_grabbed_usages,
1745 .event = mt_event,
1746 .report = mt_report,
1747#ifdef CONFIG_PM
1748 .reset_resume = mt_reset_resume,
1749 .resume = mt_resume,
1750#endif
1751};
1752module_hid_driver(mt_driver);
1753
