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29#include <linux/device.h>
30#include <linux/hid.h>
31#include <linux/module.h>
32#include <linux/slab.h>
33#include <linux/usb.h>
34#include <linux/input/mt.h>
35#include "usbhid/usbhid.h"
36
37
38MODULE_AUTHOR("Stephane Chatty <chatty@enac.fr>");
39MODULE_AUTHOR("Benjamin Tissoires <benjamin.tissoires@gmail.com>");
40MODULE_DESCRIPTION("HID multitouch panels");
41MODULE_LICENSE("GPL");
42
43#include "hid-ids.h"
44
45
46#define MT_QUIRK_NOT_SEEN_MEANS_UP (1 << 0)
47#define MT_QUIRK_SLOT_IS_CONTACTID (1 << 1)
48#define MT_QUIRK_CYPRESS (1 << 2)
49#define MT_QUIRK_SLOT_IS_CONTACTNUMBER (1 << 3)
50#define MT_QUIRK_ALWAYS_VALID (1 << 4)
51#define MT_QUIRK_VALID_IS_INRANGE (1 << 5)
52#define MT_QUIRK_VALID_IS_CONFIDENCE (1 << 6)
53#define MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE (1 << 8)
54
55struct mt_slot {
56 __s32 x, y, p, w, h;
57 __s32 contactid;
58 bool touch_state;
59 bool seen_in_this_frame;
60};
61
62struct mt_class {
63 __s32 name;
64 __s32 quirks;
65 __s32 sn_move;
66 __s32 sn_width;
67 __s32 sn_height;
68 __s32 sn_pressure;
69 __u8 maxcontacts;
70 bool is_indirect;
71};
72
73struct mt_fields {
74 unsigned usages[HID_MAX_FIELDS];
75 unsigned int length;
76};
77
78struct mt_device {
79 struct mt_slot curdata;
80 struct mt_class mtclass;
81 struct mt_fields *fields;
82
83 unsigned last_field_index;
84 unsigned last_slot_field;
85 __s8 inputmode;
86 __s8 inputmode_index;
87 __s8 maxcontact_report_id;
88
89 __u8 num_received;
90 __u8 num_expected;
91 __u8 maxcontacts;
92 __u8 touches_by_report;
93
94
95 bool curvalid;
96 struct mt_slot *slots;
97};
98
99
100#define MT_CLS_DEFAULT 0x0001
101
102#define MT_CLS_SERIAL 0x0002
103#define MT_CLS_CONFIDENCE 0x0003
104#define MT_CLS_CONFIDENCE_CONTACT_ID 0x0004
105#define MT_CLS_CONFIDENCE_MINUS_ONE 0x0005
106#define MT_CLS_DUAL_INRANGE_CONTACTID 0x0006
107#define MT_CLS_DUAL_INRANGE_CONTACTNUMBER 0x0007
108#define MT_CLS_DUAL_NSMU_CONTACTID 0x0008
109#define MT_CLS_INRANGE_CONTACTNUMBER 0x0009
110
111
112#define MT_CLS_3M 0x0101
113#define MT_CLS_CYPRESS 0x0102
114#define MT_CLS_EGALAX 0x0103
115#define MT_CLS_EGALAX_SERIAL 0x0104
116#define MT_CLS_TOPSEED 0x0105
117#define MT_CLS_PANASONIC 0x0106
118
119#define MT_DEFAULT_MAXCONTACT 10
120
121#define MT_USB_DEVICE(v, p) HID_DEVICE(BUS_USB, HID_GROUP_MULTITOUCH, v, p)
122#define MT_BT_DEVICE(v, p) HID_DEVICE(BUS_BLUETOOTH, HID_GROUP_MULTITOUCH, v, p)
123
124
125
126
127
128
129static int cypress_compute_slot(struct mt_device *td)
130{
131 if (td->curdata.contactid != 0 || td->num_received == 0)
132 return td->curdata.contactid;
133 else
134 return -1;
135}
136
137static int find_slot_from_contactid(struct mt_device *td)
138{
139 int i;
140 for (i = 0; i < td->maxcontacts; ++i) {
141 if (td->slots[i].contactid == td->curdata.contactid &&
142 td->slots[i].touch_state)
143 return i;
144 }
145 for (i = 0; i < td->maxcontacts; ++i) {
146 if (!td->slots[i].seen_in_this_frame &&
147 !td->slots[i].touch_state)
148 return i;
149 }
150
151
152
153 return -1;
154}
155
156static struct mt_class mt_classes[] = {
157 { .name = MT_CLS_DEFAULT,
158 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP },
159 { .name = MT_CLS_SERIAL,
160 .quirks = MT_QUIRK_ALWAYS_VALID},
161 { .name = MT_CLS_CONFIDENCE,
162 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE },
163 { .name = MT_CLS_CONFIDENCE_CONTACT_ID,
164 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE |
165 MT_QUIRK_SLOT_IS_CONTACTID },
166 { .name = MT_CLS_CONFIDENCE_MINUS_ONE,
167 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE |
168 MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE },
169 { .name = MT_CLS_DUAL_INRANGE_CONTACTID,
170 .quirks = MT_QUIRK_VALID_IS_INRANGE |
171 MT_QUIRK_SLOT_IS_CONTACTID,
172 .maxcontacts = 2 },
173 { .name = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
174 .quirks = MT_QUIRK_VALID_IS_INRANGE |
175 MT_QUIRK_SLOT_IS_CONTACTNUMBER,
176 .maxcontacts = 2 },
177 { .name = MT_CLS_DUAL_NSMU_CONTACTID,
178 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP |
179 MT_QUIRK_SLOT_IS_CONTACTID,
180 .maxcontacts = 2 },
181 { .name = MT_CLS_INRANGE_CONTACTNUMBER,
182 .quirks = MT_QUIRK_VALID_IS_INRANGE |
183 MT_QUIRK_SLOT_IS_CONTACTNUMBER },
184
185
186
187
188 { .name = MT_CLS_3M,
189 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE |
190 MT_QUIRK_SLOT_IS_CONTACTID,
191 .sn_move = 2048,
192 .sn_width = 128,
193 .sn_height = 128 },
194 { .name = MT_CLS_CYPRESS,
195 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP |
196 MT_QUIRK_CYPRESS,
197 .maxcontacts = 10 },
198 { .name = MT_CLS_EGALAX,
199 .quirks = MT_QUIRK_SLOT_IS_CONTACTID |
200 MT_QUIRK_VALID_IS_INRANGE,
201 .sn_move = 4096,
202 .sn_pressure = 32,
203 },
204 { .name = MT_CLS_EGALAX_SERIAL,
205 .quirks = MT_QUIRK_SLOT_IS_CONTACTID |
206 MT_QUIRK_ALWAYS_VALID,
207 .sn_move = 4096,
208 .sn_pressure = 32,
209 },
210 { .name = MT_CLS_TOPSEED,
211 .quirks = MT_QUIRK_ALWAYS_VALID,
212 .is_indirect = true,
213 .maxcontacts = 2,
214 },
215 { .name = MT_CLS_PANASONIC,
216 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP,
217 .maxcontacts = 4 },
218
219 { }
220};
221
222static ssize_t mt_show_quirks(struct device *dev,
223 struct device_attribute *attr,
224 char *buf)
225{
226 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
227 struct mt_device *td = hid_get_drvdata(hdev);
228
229 return sprintf(buf, "%u\n", td->mtclass.quirks);
230}
231
232static ssize_t mt_set_quirks(struct device *dev,
233 struct device_attribute *attr,
234 const char *buf, size_t count)
235{
236 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
237 struct mt_device *td = hid_get_drvdata(hdev);
238
239 unsigned long val;
240
241 if (kstrtoul(buf, 0, &val))
242 return -EINVAL;
243
244 td->mtclass.quirks = val;
245
246 return count;
247}
248
249static DEVICE_ATTR(quirks, S_IWUSR | S_IRUGO, mt_show_quirks, mt_set_quirks);
250
251static struct attribute *sysfs_attrs[] = {
252 &dev_attr_quirks.attr,
253 NULL
254};
255
256static struct attribute_group mt_attribute_group = {
257 .attrs = sysfs_attrs
258};
259
260static void mt_feature_mapping(struct hid_device *hdev,
261 struct hid_field *field, struct hid_usage *usage)
262{
263 struct mt_device *td = hid_get_drvdata(hdev);
264 int i;
265
266 switch (usage->hid) {
267 case HID_DG_INPUTMODE:
268 td->inputmode = field->report->id;
269 td->inputmode_index = 0;
270
271 for (i=0; i < field->maxusage; i++) {
272 if (field->usage[i].hid == usage->hid) {
273 td->inputmode_index = i;
274 break;
275 }
276 }
277
278 break;
279 case HID_DG_CONTACTMAX:
280 td->maxcontact_report_id = field->report->id;
281 td->maxcontacts = field->value[0];
282 if (td->mtclass.maxcontacts)
283
284 td->maxcontacts = td->mtclass.maxcontacts;
285
286 break;
287 }
288}
289
290static void set_abs(struct input_dev *input, unsigned int code,
291 struct hid_field *field, int snratio)
292{
293 int fmin = field->logical_minimum;
294 int fmax = field->logical_maximum;
295 int fuzz = snratio ? (fmax - fmin) / snratio : 0;
296 input_set_abs_params(input, code, fmin, fmax, fuzz, 0);
297}
298
299static void mt_store_field(struct hid_usage *usage, struct mt_device *td,
300 struct hid_input *hi)
301{
302 struct mt_fields *f = td->fields;
303
304 if (f->length >= HID_MAX_FIELDS)
305 return;
306
307 f->usages[f->length++] = usage->hid;
308}
309
310static int mt_input_mapping(struct hid_device *hdev, struct hid_input *hi,
311 struct hid_field *field, struct hid_usage *usage,
312 unsigned long **bit, int *max)
313{
314 struct mt_device *td = hid_get_drvdata(hdev);
315 struct mt_class *cls = &td->mtclass;
316 int code;
317
318
319
320
321 if (field->application == HID_DG_TOUCHSCREEN)
322 set_bit(INPUT_PROP_DIRECT, hi->input->propbit);
323 else if (field->application != HID_DG_TOUCHPAD)
324 return 0;
325
326
327
328
329
330
331 if (field->application == HID_DG_TOUCHPAD ||
332 (usage->hid & HID_USAGE_PAGE) == HID_UP_BUTTON ||
333 cls->is_indirect) {
334 set_bit(INPUT_PROP_POINTER, hi->input->propbit);
335 set_bit(BTN_TOOL_FINGER, hi->input->keybit);
336 set_bit(BTN_TOOL_DOUBLETAP, hi->input->keybit);
337 set_bit(BTN_TOOL_TRIPLETAP, hi->input->keybit);
338 set_bit(BTN_TOOL_QUADTAP, hi->input->keybit);
339 }
340
341
342
343
344 if (field->physical == HID_DG_STYLUS)
345 return -1;
346
347 switch (usage->hid & HID_USAGE_PAGE) {
348
349 case HID_UP_GENDESK:
350 switch (usage->hid) {
351 case HID_GD_X:
352 hid_map_usage(hi, usage, bit, max,
353 EV_ABS, ABS_MT_POSITION_X);
354 set_abs(hi->input, ABS_MT_POSITION_X, field,
355 cls->sn_move);
356
357 set_abs(hi->input, ABS_X, field, cls->sn_move);
358 mt_store_field(usage, td, hi);
359 td->last_field_index = field->index;
360 return 1;
361 case HID_GD_Y:
362 hid_map_usage(hi, usage, bit, max,
363 EV_ABS, ABS_MT_POSITION_Y);
364 set_abs(hi->input, ABS_MT_POSITION_Y, field,
365 cls->sn_move);
366
367 set_abs(hi->input, ABS_Y, field, cls->sn_move);
368 mt_store_field(usage, td, hi);
369 td->last_field_index = field->index;
370 return 1;
371 }
372 return 0;
373
374 case HID_UP_DIGITIZER:
375 switch (usage->hid) {
376 case HID_DG_INRANGE:
377 mt_store_field(usage, td, hi);
378 td->last_field_index = field->index;
379 return 1;
380 case HID_DG_CONFIDENCE:
381 mt_store_field(usage, td, hi);
382 td->last_field_index = field->index;
383 return 1;
384 case HID_DG_TIPSWITCH:
385 hid_map_usage(hi, usage, bit, max, EV_KEY, BTN_TOUCH);
386 input_set_capability(hi->input, EV_KEY, BTN_TOUCH);
387 mt_store_field(usage, td, hi);
388 td->last_field_index = field->index;
389 return 1;
390 case HID_DG_CONTACTID:
391 if (!td->maxcontacts)
392 td->maxcontacts = MT_DEFAULT_MAXCONTACT;
393 input_mt_init_slots(hi->input, td->maxcontacts);
394 mt_store_field(usage, td, hi);
395 td->last_field_index = field->index;
396 td->touches_by_report++;
397 return 1;
398 case HID_DG_WIDTH:
399 hid_map_usage(hi, usage, bit, max,
400 EV_ABS, ABS_MT_TOUCH_MAJOR);
401 set_abs(hi->input, ABS_MT_TOUCH_MAJOR, field,
402 cls->sn_width);
403 mt_store_field(usage, td, hi);
404 td->last_field_index = field->index;
405 return 1;
406 case HID_DG_HEIGHT:
407 hid_map_usage(hi, usage, bit, max,
408 EV_ABS, ABS_MT_TOUCH_MINOR);
409 set_abs(hi->input, ABS_MT_TOUCH_MINOR, field,
410 cls->sn_height);
411 input_set_abs_params(hi->input,
412 ABS_MT_ORIENTATION, 0, 1, 0, 0);
413 mt_store_field(usage, td, hi);
414 td->last_field_index = field->index;
415 return 1;
416 case HID_DG_TIPPRESSURE:
417 hid_map_usage(hi, usage, bit, max,
418 EV_ABS, ABS_MT_PRESSURE);
419 set_abs(hi->input, ABS_MT_PRESSURE, field,
420 cls->sn_pressure);
421
422 set_abs(hi->input, ABS_PRESSURE, field,
423 cls->sn_pressure);
424 mt_store_field(usage, td, hi);
425 td->last_field_index = field->index;
426 return 1;
427 case HID_DG_CONTACTCOUNT:
428 td->last_field_index = field->index;
429 return 1;
430 case HID_DG_CONTACTMAX:
431
432
433 td->last_field_index = field->index;
434 return -1;
435 }
436 case HID_DG_TOUCH:
437
438
439 return -1;
440
441 return 0;
442
443 case HID_UP_BUTTON:
444 code = BTN_MOUSE + ((usage->hid - 1) & HID_USAGE);
445 hid_map_usage(hi, usage, bit, max, EV_KEY, code);
446 input_set_capability(hi->input, EV_KEY, code);
447 return 1;
448
449 case 0xff000000:
450
451 return -1;
452 }
453
454 return 0;
455}
456
457static int mt_input_mapped(struct hid_device *hdev, struct hid_input *hi,
458 struct hid_field *field, struct hid_usage *usage,
459 unsigned long **bit, int *max)
460{
461 if (usage->type == EV_KEY || usage->type == EV_ABS)
462 set_bit(usage->type, hi->input->evbit);
463
464 return -1;
465}
466
467static int mt_compute_slot(struct mt_device *td)
468{
469 __s32 quirks = td->mtclass.quirks;
470
471 if (quirks & MT_QUIRK_SLOT_IS_CONTACTID)
472 return td->curdata.contactid;
473
474 if (quirks & MT_QUIRK_CYPRESS)
475 return cypress_compute_slot(td);
476
477 if (quirks & MT_QUIRK_SLOT_IS_CONTACTNUMBER)
478 return td->num_received;
479
480 if (quirks & MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE)
481 return td->curdata.contactid - 1;
482
483 return find_slot_from_contactid(td);
484}
485
486
487
488
489
490static void mt_complete_slot(struct mt_device *td)
491{
492 td->curdata.seen_in_this_frame = true;
493 if (td->curvalid) {
494 int slotnum = mt_compute_slot(td);
495
496 if (slotnum >= 0 && slotnum < td->maxcontacts)
497 td->slots[slotnum] = td->curdata;
498 }
499 td->num_received++;
500}
501
502
503
504
505
506
507static void mt_emit_event(struct mt_device *td, struct input_dev *input)
508{
509 int i;
510
511 for (i = 0; i < td->maxcontacts; ++i) {
512 struct mt_slot *s = &(td->slots[i]);
513 if ((td->mtclass.quirks & MT_QUIRK_NOT_SEEN_MEANS_UP) &&
514 !s->seen_in_this_frame) {
515 s->touch_state = false;
516 }
517
518 input_mt_slot(input, i);
519 input_mt_report_slot_state(input, MT_TOOL_FINGER,
520 s->touch_state);
521 if (s->touch_state) {
522
523 int wide = (s->w > s->h);
524
525 int major = max(s->w, s->h) >> 1;
526 int minor = min(s->w, s->h) >> 1;
527
528 input_event(input, EV_ABS, ABS_MT_POSITION_X, s->x);
529 input_event(input, EV_ABS, ABS_MT_POSITION_Y, s->y);
530 input_event(input, EV_ABS, ABS_MT_ORIENTATION, wide);
531 input_event(input, EV_ABS, ABS_MT_PRESSURE, s->p);
532 input_event(input, EV_ABS, ABS_MT_TOUCH_MAJOR, major);
533 input_event(input, EV_ABS, ABS_MT_TOUCH_MINOR, minor);
534 }
535 s->seen_in_this_frame = false;
536
537 }
538
539 input_mt_report_pointer_emulation(input, true);
540 input_sync(input);
541 td->num_received = 0;
542}
543
544
545
546static int mt_event(struct hid_device *hid, struct hid_field *field,
547 struct hid_usage *usage, __s32 value)
548{
549 struct mt_device *td = hid_get_drvdata(hid);
550 __s32 quirks = td->mtclass.quirks;
551
552 if (hid->claimed & HID_CLAIMED_INPUT && td->slots) {
553 switch (usage->hid) {
554 case HID_DG_INRANGE:
555 if (quirks & MT_QUIRK_ALWAYS_VALID)
556 td->curvalid = true;
557 else if (quirks & MT_QUIRK_VALID_IS_INRANGE)
558 td->curvalid = value;
559 break;
560 case HID_DG_TIPSWITCH:
561 if (quirks & MT_QUIRK_NOT_SEEN_MEANS_UP)
562 td->curvalid = value;
563 td->curdata.touch_state = value;
564 break;
565 case HID_DG_CONFIDENCE:
566 if (quirks & MT_QUIRK_VALID_IS_CONFIDENCE)
567 td->curvalid = value;
568 break;
569 case HID_DG_CONTACTID:
570 td->curdata.contactid = value;
571 break;
572 case HID_DG_TIPPRESSURE:
573 td->curdata.p = value;
574 break;
575 case HID_GD_X:
576 td->curdata.x = value;
577 break;
578 case HID_GD_Y:
579 td->curdata.y = value;
580 break;
581 case HID_DG_WIDTH:
582 td->curdata.w = value;
583 break;
584 case HID_DG_HEIGHT:
585 td->curdata.h = value;
586 break;
587 case HID_DG_CONTACTCOUNT:
588
589
590
591
592 if (value)
593 td->num_expected = value;
594 break;
595 case HID_DG_TOUCH:
596
597 break;
598
599 default:
600
601 return 0;
602 }
603
604 if (usage->hid == td->last_slot_field)
605 mt_complete_slot(td);
606
607 if (field->index == td->last_field_index
608 && td->num_received >= td->num_expected)
609 mt_emit_event(td, field->hidinput->input);
610
611 }
612
613
614 if (hid->claimed & HID_CLAIMED_HIDDEV && hid->hiddev_hid_event)
615 hid->hiddev_hid_event(hid, field, usage, value);
616
617 return 1;
618}
619
620static void mt_set_input_mode(struct hid_device *hdev)
621{
622 struct mt_device *td = hid_get_drvdata(hdev);
623 struct hid_report *r;
624 struct hid_report_enum *re;
625
626 if (td->inputmode < 0)
627 return;
628
629 re = &(hdev->report_enum[HID_FEATURE_REPORT]);
630 r = re->report_id_hash[td->inputmode];
631 if (r) {
632 r->field[0]->value[td->inputmode_index] = 0x02;
633 usbhid_submit_report(hdev, r, USB_DIR_OUT);
634 }
635}
636
637static void mt_set_maxcontacts(struct hid_device *hdev)
638{
639 struct mt_device *td = hid_get_drvdata(hdev);
640 struct hid_report *r;
641 struct hid_report_enum *re;
642 int fieldmax, max;
643
644 if (td->maxcontact_report_id < 0)
645 return;
646
647 if (!td->mtclass.maxcontacts)
648 return;
649
650 re = &hdev->report_enum[HID_FEATURE_REPORT];
651 r = re->report_id_hash[td->maxcontact_report_id];
652 if (r) {
653 max = td->mtclass.maxcontacts;
654 fieldmax = r->field[0]->logical_maximum;
655 max = min(fieldmax, max);
656 if (r->field[0]->value[0] != max) {
657 r->field[0]->value[0] = max;
658 usbhid_submit_report(hdev, r, USB_DIR_OUT);
659 }
660 }
661}
662
663static void mt_post_parse_default_settings(struct mt_device *td)
664{
665 __s32 quirks = td->mtclass.quirks;
666
667
668 if (td->touches_by_report == 1) {
669 quirks |= MT_QUIRK_ALWAYS_VALID;
670 quirks &= ~MT_QUIRK_NOT_SEEN_MEANS_UP;
671 quirks &= ~MT_QUIRK_VALID_IS_INRANGE;
672 quirks &= ~MT_QUIRK_VALID_IS_CONFIDENCE;
673 }
674
675 td->mtclass.quirks = quirks;
676}
677
678static void mt_post_parse(struct mt_device *td)
679{
680 struct mt_fields *f = td->fields;
681
682 if (td->touches_by_report > 0) {
683 int field_count_per_touch = f->length / td->touches_by_report;
684 td->last_slot_field = f->usages[field_count_per_touch - 1];
685 }
686}
687
688static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id)
689{
690 int ret, i;
691 struct mt_device *td;
692 struct mt_class *mtclass = mt_classes;
693
694 if (id) {
695 for (i = 0; mt_classes[i].name ; i++) {
696 if (id->driver_data == mt_classes[i].name) {
697 mtclass = &(mt_classes[i]);
698 break;
699 }
700 }
701 }
702
703
704
705
706 hdev->quirks |= HID_QUIRK_NO_INPUT_SYNC;
707
708 td = kzalloc(sizeof(struct mt_device), GFP_KERNEL);
709 if (!td) {
710 dev_err(&hdev->dev, "cannot allocate multitouch data\n");
711 return -ENOMEM;
712 }
713 td->mtclass = *mtclass;
714 td->inputmode = -1;
715 td->maxcontact_report_id = -1;
716 hid_set_drvdata(hdev, td);
717
718 td->fields = kzalloc(sizeof(struct mt_fields), GFP_KERNEL);
719 if (!td->fields) {
720 dev_err(&hdev->dev, "cannot allocate multitouch fields data\n");
721 ret = -ENOMEM;
722 goto fail;
723 }
724
725 ret = hid_parse(hdev);
726 if (ret != 0)
727 goto fail;
728
729 ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
730 if (ret)
731 goto fail;
732
733 mt_post_parse(td);
734
735 if (id->vendor == HID_ANY_ID && id->product == HID_ANY_ID)
736 mt_post_parse_default_settings(td);
737
738 td->slots = kzalloc(td->maxcontacts * sizeof(struct mt_slot),
739 GFP_KERNEL);
740 if (!td->slots) {
741 dev_err(&hdev->dev, "cannot allocate multitouch slots\n");
742 hid_hw_stop(hdev);
743 ret = -ENOMEM;
744 goto fail;
745 }
746
747 ret = sysfs_create_group(&hdev->dev.kobj, &mt_attribute_group);
748
749 mt_set_maxcontacts(hdev);
750 mt_set_input_mode(hdev);
751
752 kfree(td->fields);
753 td->fields = NULL;
754
755 return 0;
756
757fail:
758 kfree(td->fields);
759 kfree(td);
760 return ret;
761}
762
763#ifdef CONFIG_PM
764static int mt_reset_resume(struct hid_device *hdev)
765{
766 mt_set_maxcontacts(hdev);
767 mt_set_input_mode(hdev);
768 return 0;
769}
770#endif
771
772static void mt_remove(struct hid_device *hdev)
773{
774 struct mt_device *td = hid_get_drvdata(hdev);
775 sysfs_remove_group(&hdev->dev.kobj, &mt_attribute_group);
776 hid_hw_stop(hdev);
777 kfree(td->slots);
778 kfree(td);
779 hid_set_drvdata(hdev, NULL);
780}
781
782static const struct hid_device_id mt_devices[] = {
783
784
785 { .driver_data = MT_CLS_3M,
786 MT_USB_DEVICE(USB_VENDOR_ID_3M,
787 USB_DEVICE_ID_3M1968) },
788 { .driver_data = MT_CLS_3M,
789 MT_USB_DEVICE(USB_VENDOR_ID_3M,
790 USB_DEVICE_ID_3M2256) },
791 { .driver_data = MT_CLS_3M,
792 MT_USB_DEVICE(USB_VENDOR_ID_3M,
793 USB_DEVICE_ID_3M3266) },
794
795
796 { .driver_data = MT_CLS_DEFAULT,
797 MT_USB_DEVICE(USB_VENDOR_ID_ACTIONSTAR,
798 USB_DEVICE_ID_ACTIONSTAR_1011) },
799
800
801 { .driver_data = MT_CLS_SERIAL,
802 MT_USB_DEVICE(USB_VENDOR_ID_ATMEL,
803 USB_DEVICE_ID_ATMEL_MULTITOUCH) },
804 { .driver_data = MT_CLS_SERIAL,
805 MT_USB_DEVICE(USB_VENDOR_ID_ATMEL,
806 USB_DEVICE_ID_ATMEL_MXT_DIGITIZER) },
807
808
809 { .driver_data = MT_CLS_DEFAULT,
810 MT_USB_DEVICE(USB_VENDOR_ID_BAANTO,
811 USB_DEVICE_ID_BAANTO_MT_190W2) },
812
813 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
814 MT_USB_DEVICE(USB_VENDOR_ID_CANDO,
815 USB_DEVICE_ID_CANDO_MULTI_TOUCH) },
816 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
817 MT_USB_DEVICE(USB_VENDOR_ID_CANDO,
818 USB_DEVICE_ID_CANDO_MULTI_TOUCH_10_1) },
819 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
820 MT_USB_DEVICE(USB_VENDOR_ID_CANDO,
821 USB_DEVICE_ID_CANDO_MULTI_TOUCH_11_6) },
822 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
823 MT_USB_DEVICE(USB_VENDOR_ID_CANDO,
824 USB_DEVICE_ID_CANDO_MULTI_TOUCH_15_6) },
825
826
827 { .driver_data = MT_CLS_DEFAULT,
828 MT_USB_DEVICE(USB_VENDOR_ID_CHUNGHWAT,
829 USB_DEVICE_ID_CHUNGHWAT_MULTITOUCH) },
830
831
832 { .driver_data = MT_CLS_DEFAULT,
833 MT_USB_DEVICE(USB_VENDOR_ID_CVTOUCH,
834 USB_DEVICE_ID_CVTOUCH_SCREEN) },
835
836
837 { .driver_data = MT_CLS_CYPRESS,
838 HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS,
839 USB_DEVICE_ID_CYPRESS_TRUETOUCH) },
840
841
842 { .driver_data = MT_CLS_EGALAX,
843 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
844 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_480D) },
845 { .driver_data = MT_CLS_EGALAX,
846 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
847 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_480E) },
848
849
850 { .driver_data = MT_CLS_EGALAX,
851 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
852 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_720C) },
853 { .driver_data = MT_CLS_EGALAX_SERIAL,
854 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
855 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7207) },
856 { .driver_data = MT_CLS_EGALAX_SERIAL,
857 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
858 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_725E) },
859 { .driver_data = MT_CLS_EGALAX_SERIAL,
860 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
861 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7224) },
862 { .driver_data = MT_CLS_EGALAX_SERIAL,
863 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
864 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_722A) },
865 { .driver_data = MT_CLS_EGALAX,
866 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
867 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_726B) },
868 { .driver_data = MT_CLS_EGALAX_SERIAL,
869 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
870 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7262) },
871 { .driver_data = MT_CLS_EGALAX,
872 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
873 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72A1) },
874 { .driver_data = MT_CLS_EGALAX_SERIAL,
875 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
876 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72AA) },
877 { .driver_data = MT_CLS_EGALAX,
878 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
879 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72FA) },
880 { .driver_data = MT_CLS_EGALAX,
881 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
882 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7302) },
883 { .driver_data = MT_CLS_EGALAX_SERIAL,
884 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
885 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7349) },
886 { .driver_data = MT_CLS_EGALAX_SERIAL,
887 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
888 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_A001) },
889
890
891 { .driver_data = MT_CLS_DUAL_NSMU_CONTACTID,
892 MT_USB_DEVICE(USB_VENDOR_ID_ELO,
893 USB_DEVICE_ID_ELO_TS2515) },
894
895
896 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
897 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
898 USB_DEVICE_ID_GENERAL_TOUCH_WIN7_TWOFINGERS) },
899
900
901 { .driver_data = MT_CLS_DEFAULT,
902 MT_BT_DEVICE(USB_VENDOR_ID_FRUCTEL,
903 USB_DEVICE_ID_GAMETEL_MT_MODE) },
904
905
906 { .driver_data = MT_CLS_DEFAULT,
907 MT_USB_DEVICE(USB_VENDOR_ID_GOODTOUCH,
908 USB_DEVICE_ID_GOODTOUCH_000f) },
909
910
911 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID,
912 MT_USB_DEVICE(USB_VENDOR_ID_HANVON_ALT,
913 USB_DEVICE_ID_HANVON_ALT_MULTITOUCH) },
914
915
916 { .driver_data = MT_CLS_SERIAL,
917 MT_USB_DEVICE(USB_VENDOR_ID_IDEACOM,
918 USB_DEVICE_ID_IDEACOM_IDC6650) },
919 { .driver_data = MT_CLS_SERIAL,
920 MT_USB_DEVICE(USB_VENDOR_ID_IDEACOM,
921 USB_DEVICE_ID_IDEACOM_IDC6651) },
922
923
924 { .driver_data = MT_CLS_DEFAULT,
925 MT_USB_DEVICE(USB_VENDOR_ID_ILITEK,
926 USB_DEVICE_ID_ILITEK_MULTITOUCH) },
927
928
929 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID,
930 MT_USB_DEVICE(USB_VENDOR_ID_IRTOUCHSYSTEMS,
931 USB_DEVICE_ID_IRTOUCH_INFRARED_USB) },
932
933
934 { .driver_data = MT_CLS_DEFAULT,
935 MT_USB_DEVICE(USB_VENDOR_ID_LG,
936 USB_DEVICE_ID_LG_MULTITOUCH) },
937
938
939 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
940 MT_USB_DEVICE(USB_VENDOR_ID_LUMIO,
941 USB_DEVICE_ID_CRYSTALTOUCH) },
942 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
943 MT_USB_DEVICE(USB_VENDOR_ID_LUMIO,
944 USB_DEVICE_ID_CRYSTALTOUCH_DUAL) },
945
946
947 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
948 MT_USB_DEVICE(USB_VENDOR_ID_ASUS,
949 USB_DEVICE_ID_ASUS_T91MT)},
950 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
951 MT_USB_DEVICE(USB_VENDOR_ID_ASUS,
952 USB_DEVICE_ID_ASUSTEK_MULTITOUCH_YFO) },
953 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
954 MT_USB_DEVICE(USB_VENDOR_ID_TURBOX,
955 USB_DEVICE_ID_TURBOX_TOUCHSCREEN_MOSART) },
956
957
958 { .driver_data = MT_CLS_PANASONIC,
959 MT_USB_DEVICE(USB_VENDOR_ID_PANASONIC,
960 USB_DEVICE_ID_PANABOARD_UBT780) },
961 { .driver_data = MT_CLS_PANASONIC,
962 MT_USB_DEVICE(USB_VENDOR_ID_PANASONIC,
963 USB_DEVICE_ID_PANABOARD_UBT880) },
964
965
966 { .driver_data = MT_CLS_DEFAULT,
967 MT_USB_DEVICE(USB_VENDOR_ID_NOVATEK,
968 USB_DEVICE_ID_NOVATEK_PCT) },
969
970
971 { .driver_data = MT_CLS_CONFIDENCE,
972 MT_USB_DEVICE(USB_VENDOR_ID_PENMOUNT,
973 USB_DEVICE_ID_PENMOUNT_PCI) },
974
975
976 { .driver_data = MT_CLS_INRANGE_CONTACTNUMBER,
977 MT_USB_DEVICE(USB_VENDOR_ID_PIXART,
978 USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN) },
979 { .driver_data = MT_CLS_INRANGE_CONTACTNUMBER,
980 MT_USB_DEVICE(USB_VENDOR_ID_PIXART,
981 USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN1) },
982 { .driver_data = MT_CLS_INRANGE_CONTACTNUMBER,
983 MT_USB_DEVICE(USB_VENDOR_ID_PIXART,
984 USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN2) },
985
986
987 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID,
988 MT_USB_DEVICE(USB_VENDOR_ID_HANVON,
989 USB_DEVICE_ID_HANVON_MULTITOUCH) },
990 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID,
991 MT_USB_DEVICE(USB_VENDOR_ID_CANDO,
992 USB_DEVICE_ID_CANDO_PIXCIR_MULTI_TOUCH) },
993
994
995 { .driver_data = MT_CLS_CONFIDENCE_CONTACT_ID,
996 MT_USB_DEVICE(USB_VENDOR_ID_QUANTA,
997 USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH) },
998 { .driver_data = MT_CLS_CONFIDENCE_CONTACT_ID,
999 MT_USB_DEVICE(USB_VENDOR_ID_QUANTA,
1000 USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3001) },
1001 { .driver_data = MT_CLS_CONFIDENCE_CONTACT_ID,
1002 MT_USB_DEVICE(USB_VENDOR_ID_QUANTA,
1003 USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3008) },
1004
1005
1006 { .driver_data = MT_CLS_CONFIDENCE,
1007 MT_USB_DEVICE(USB_VENDOR_ID_STANTUM,
1008 USB_DEVICE_ID_MTP)},
1009 { .driver_data = MT_CLS_CONFIDENCE,
1010 MT_USB_DEVICE(USB_VENDOR_ID_STANTUM_STM,
1011 USB_DEVICE_ID_MTP_STM)},
1012 { .driver_data = MT_CLS_CONFIDENCE,
1013 MT_USB_DEVICE(USB_VENDOR_ID_STANTUM_SITRONIX,
1014 USB_DEVICE_ID_MTP_SITRONIX)},
1015
1016
1017 { .driver_data = MT_CLS_TOPSEED,
1018 MT_USB_DEVICE(USB_VENDOR_ID_TOPSEED2,
1019 USB_DEVICE_ID_TOPSEED2_PERIPAD_701) },
1020
1021
1022 { .driver_data = MT_CLS_DEFAULT,
1023 MT_USB_DEVICE(USB_VENDOR_ID_TOUCH_INTL,
1024 USB_DEVICE_ID_TOUCH_INTL_MULTI_TOUCH) },
1025
1026
1027 { .driver_data = MT_CLS_DEFAULT,
1028 MT_USB_DEVICE(USB_VENDOR_ID_UNITEC,
1029 USB_DEVICE_ID_UNITEC_USB_TOUCH_0709) },
1030 { .driver_data = MT_CLS_DEFAULT,
1031 MT_USB_DEVICE(USB_VENDOR_ID_UNITEC,
1032 USB_DEVICE_ID_UNITEC_USB_TOUCH_0A19) },
1033
1034 { .driver_data = MT_CLS_DEFAULT,
1035 MT_USB_DEVICE(USB_VENDOR_ID_XAT,
1036 USB_DEVICE_ID_XAT_CSR) },
1037
1038
1039 { .driver_data = MT_CLS_DEFAULT,
1040 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1041 USB_DEVICE_ID_XIROKU_SPX) },
1042 { .driver_data = MT_CLS_DEFAULT,
1043 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1044 USB_DEVICE_ID_XIROKU_MPX) },
1045 { .driver_data = MT_CLS_DEFAULT,
1046 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1047 USB_DEVICE_ID_XIROKU_CSR) },
1048 { .driver_data = MT_CLS_DEFAULT,
1049 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1050 USB_DEVICE_ID_XIROKU_SPX1) },
1051 { .driver_data = MT_CLS_DEFAULT,
1052 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1053 USB_DEVICE_ID_XIROKU_MPX1) },
1054 { .driver_data = MT_CLS_DEFAULT,
1055 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1056 USB_DEVICE_ID_XIROKU_CSR1) },
1057 { .driver_data = MT_CLS_DEFAULT,
1058 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1059 USB_DEVICE_ID_XIROKU_SPX2) },
1060 { .driver_data = MT_CLS_DEFAULT,
1061 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1062 USB_DEVICE_ID_XIROKU_MPX2) },
1063 { .driver_data = MT_CLS_DEFAULT,
1064 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1065 USB_DEVICE_ID_XIROKU_CSR2) },
1066
1067
1068 { .driver_data = MT_CLS_SERIAL,
1069 MT_USB_DEVICE(USB_VENDOR_ID_ZYTRONIC,
1070 USB_DEVICE_ID_ZYTRONIC_ZXY100) },
1071
1072
1073 { HID_DEVICE(HID_BUS_ANY, HID_GROUP_MULTITOUCH, HID_ANY_ID, HID_ANY_ID) },
1074 { }
1075};
1076MODULE_DEVICE_TABLE(hid, mt_devices);
1077
1078static const struct hid_usage_id mt_grabbed_usages[] = {
1079 { HID_ANY_ID, HID_ANY_ID, HID_ANY_ID },
1080 { HID_ANY_ID - 1, HID_ANY_ID - 1, HID_ANY_ID - 1}
1081};
1082
1083static struct hid_driver mt_driver = {
1084 .name = "hid-multitouch",
1085 .id_table = mt_devices,
1086 .probe = mt_probe,
1087 .remove = mt_remove,
1088 .input_mapping = mt_input_mapping,
1089 .input_mapped = mt_input_mapped,
1090 .feature_mapping = mt_feature_mapping,
1091 .usage_table = mt_grabbed_usages,
1092 .event = mt_event,
1093#ifdef CONFIG_PM
1094 .reset_resume = mt_reset_resume,
1095#endif
1096};
1097
1098static int __init mt_init(void)
1099{
1100 return hid_register_driver(&mt_driver);
1101}
1102
1103static void __exit mt_exit(void)
1104{
1105 hid_unregister_driver(&mt_driver);
1106}
1107
1108module_init(mt_init);
1109module_exit(mt_exit);
1110
