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HID: multitouch: add support for Win 8.1 multitouch touchpads
[mirror_ubuntu-artful-kernel.git] / drivers / hid / hid-multitouch.c
1 /*
2 * HID driver for multitouch panels
3 *
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
8 *
9 * This code is partly based on hid-egalax.c:
10 *
11 * Copyright (c) 2010 Stephane Chatty <chatty@enac.fr>
12 * Copyright (c) 2010 Henrik Rydberg <rydberg@euromail.se>
13 * Copyright (c) 2010 Canonical, Ltd.
14 *
15 * This code is partly based on hid-3m-pct.c:
16 *
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.
20 *
21 */
22
23 /*
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)
27 * any later version.
28 */
29
30 /*
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.
35 *
36 * [1] https://github.com/bentiss/hid-test
37 * [2] https://github.com/bentiss/hid-replay
38 * [3] https://github.com/bentiss/hid-devices
39 */
40
41 #include <linux/device.h>
42 #include <linux/hid.h>
43 #include <linux/module.h>
44 #include <linux/slab.h>
45 #include <linux/usb.h>
46 #include <linux/input/mt.h>
47 #include <linux/string.h>
48
49
50 MODULE_AUTHOR("Stephane Chatty <chatty@enac.fr>");
51 MODULE_AUTHOR("Benjamin Tissoires <benjamin.tissoires@gmail.com>");
52 MODULE_DESCRIPTION("HID multitouch panels");
53 MODULE_LICENSE("GPL");
54
55 #include "hid-ids.h"
56
57 /* quirks to control the device */
58 #define MT_QUIRK_NOT_SEEN_MEANS_UP (1 << 0)
59 #define MT_QUIRK_SLOT_IS_CONTACTID (1 << 1)
60 #define MT_QUIRK_CYPRESS (1 << 2)
61 #define MT_QUIRK_SLOT_IS_CONTACTNUMBER (1 << 3)
62 #define MT_QUIRK_ALWAYS_VALID (1 << 4)
63 #define MT_QUIRK_VALID_IS_INRANGE (1 << 5)
64 #define MT_QUIRK_VALID_IS_CONFIDENCE (1 << 6)
65 #define MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE (1 << 8)
66 #define MT_QUIRK_NO_AREA (1 << 9)
67 #define MT_QUIRK_IGNORE_DUPLICATES (1 << 10)
68 #define MT_QUIRK_HOVERING (1 << 11)
69 #define MT_QUIRK_CONTACT_CNT_ACCURATE (1 << 12)
70
71 #define MT_INPUTMODE_TOUCHSCREEN 0x02
72 #define MT_INPUTMODE_TOUCHPAD 0x03
73
74 struct mt_slot {
75 __s32 x, y, cx, cy, p, w, h;
76 __s32 contactid; /* the device ContactID assigned to this slot */
77 bool touch_state; /* is the touch valid? */
78 bool inrange_state; /* is the finger in proximity of the sensor? */
79 };
80
81 struct mt_class {
82 __s32 name; /* MT_CLS */
83 __s32 quirks;
84 __s32 sn_move; /* Signal/noise ratio for move events */
85 __s32 sn_width; /* Signal/noise ratio for width events */
86 __s32 sn_height; /* Signal/noise ratio for height events */
87 __s32 sn_pressure; /* Signal/noise ratio for pressure events */
88 __u8 maxcontacts;
89 bool is_indirect; /* true for touchpads */
90 bool export_all_inputs; /* do not ignore mouse, keyboards, etc... */
91 };
92
93 struct mt_fields {
94 unsigned usages[HID_MAX_FIELDS];
95 unsigned int length;
96 };
97
98 struct mt_device {
99 struct mt_slot curdata; /* placeholder of incoming data */
100 struct mt_class mtclass; /* our mt device class */
101 struct mt_fields *fields; /* temporary placeholder for storing the
102 multitouch fields */
103 int cc_index; /* contact count field index in the report */
104 int cc_value_index; /* contact count value index in the field */
105 unsigned last_slot_field; /* the last field of a slot */
106 unsigned mt_report_id; /* the report ID of the multitouch device */
107 __s16 inputmode; /* InputMode HID feature, -1 if non-existent */
108 __s16 inputmode_index; /* InputMode HID feature index in the report */
109 __s16 maxcontact_report_id; /* Maximum Contact Number HID feature,
110 -1 if non-existent */
111 __u8 inputmode_value; /* InputMode HID feature value */
112 __u8 num_received; /* how many contacts we received */
113 __u8 num_expected; /* expected last contact index */
114 __u8 maxcontacts;
115 __u8 touches_by_report; /* how many touches are present in one report:
116 * 1 means we should use a serial protocol
117 * > 1 means hybrid (multitouch) protocol */
118 bool serial_maybe; /* need to check for serial protocol */
119 bool curvalid; /* is the current contact valid? */
120 unsigned mt_flags; /* flags to pass to input-mt */
121 };
122
123 static void mt_post_parse_default_settings(struct mt_device *td);
124 static void mt_post_parse(struct mt_device *td);
125
126 /* classes of device behavior */
127 #define MT_CLS_DEFAULT 0x0001
128
129 #define MT_CLS_SERIAL 0x0002
130 #define MT_CLS_CONFIDENCE 0x0003
131 #define MT_CLS_CONFIDENCE_CONTACT_ID 0x0004
132 #define MT_CLS_CONFIDENCE_MINUS_ONE 0x0005
133 #define MT_CLS_DUAL_INRANGE_CONTACTID 0x0006
134 #define MT_CLS_DUAL_INRANGE_CONTACTNUMBER 0x0007
135 /* reserved 0x0008 */
136 #define MT_CLS_INRANGE_CONTACTNUMBER 0x0009
137 #define MT_CLS_NSMU 0x000a
138 /* reserved 0x0010 */
139 /* reserved 0x0011 */
140 #define MT_CLS_WIN_8 0x0012
141 #define MT_CLS_EXPORT_ALL_INPUTS 0x0013
142
143 /* vendor specific classes */
144 #define MT_CLS_3M 0x0101
145 /* reserved 0x0102 */
146 #define MT_CLS_EGALAX 0x0103
147 #define MT_CLS_EGALAX_SERIAL 0x0104
148 #define MT_CLS_TOPSEED 0x0105
149 #define MT_CLS_PANASONIC 0x0106
150 #define MT_CLS_FLATFROG 0x0107
151 #define MT_CLS_GENERALTOUCH_TWOFINGERS 0x0108
152 #define MT_CLS_GENERALTOUCH_PWT_TENFINGERS 0x0109
153
154 #define MT_DEFAULT_MAXCONTACT 10
155 #define MT_MAX_MAXCONTACT 250
156
157 #define MT_USB_DEVICE(v, p) HID_DEVICE(BUS_USB, HID_GROUP_MULTITOUCH, v, p)
158 #define MT_BT_DEVICE(v, p) HID_DEVICE(BUS_BLUETOOTH, HID_GROUP_MULTITOUCH, v, p)
159
160 /*
161 * these device-dependent functions determine what slot corresponds
162 * to a valid contact that was just read.
163 */
164
165 static int cypress_compute_slot(struct mt_device *td)
166 {
167 if (td->curdata.contactid != 0 || td->num_received == 0)
168 return td->curdata.contactid;
169 else
170 return -1;
171 }
172
173 static struct mt_class mt_classes[] = {
174 { .name = MT_CLS_DEFAULT,
175 .quirks = MT_QUIRK_ALWAYS_VALID |
176 MT_QUIRK_CONTACT_CNT_ACCURATE },
177 { .name = MT_CLS_NSMU,
178 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP },
179 { .name = MT_CLS_SERIAL,
180 .quirks = MT_QUIRK_ALWAYS_VALID},
181 { .name = MT_CLS_CONFIDENCE,
182 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE },
183 { .name = MT_CLS_CONFIDENCE_CONTACT_ID,
184 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE |
185 MT_QUIRK_SLOT_IS_CONTACTID },
186 { .name = MT_CLS_CONFIDENCE_MINUS_ONE,
187 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE |
188 MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE },
189 { .name = MT_CLS_DUAL_INRANGE_CONTACTID,
190 .quirks = MT_QUIRK_VALID_IS_INRANGE |
191 MT_QUIRK_SLOT_IS_CONTACTID,
192 .maxcontacts = 2 },
193 { .name = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
194 .quirks = MT_QUIRK_VALID_IS_INRANGE |
195 MT_QUIRK_SLOT_IS_CONTACTNUMBER,
196 .maxcontacts = 2 },
197 { .name = MT_CLS_INRANGE_CONTACTNUMBER,
198 .quirks = MT_QUIRK_VALID_IS_INRANGE |
199 MT_QUIRK_SLOT_IS_CONTACTNUMBER },
200 { .name = MT_CLS_WIN_8,
201 .quirks = MT_QUIRK_ALWAYS_VALID |
202 MT_QUIRK_IGNORE_DUPLICATES |
203 MT_QUIRK_HOVERING |
204 MT_QUIRK_CONTACT_CNT_ACCURATE },
205 { .name = MT_CLS_EXPORT_ALL_INPUTS,
206 .quirks = MT_QUIRK_ALWAYS_VALID |
207 MT_QUIRK_CONTACT_CNT_ACCURATE,
208 .export_all_inputs = true },
209
210 /*
211 * vendor specific classes
212 */
213 { .name = MT_CLS_3M,
214 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE |
215 MT_QUIRK_SLOT_IS_CONTACTID,
216 .sn_move = 2048,
217 .sn_width = 128,
218 .sn_height = 128,
219 .maxcontacts = 60,
220 },
221 { .name = MT_CLS_EGALAX,
222 .quirks = MT_QUIRK_SLOT_IS_CONTACTID |
223 MT_QUIRK_VALID_IS_INRANGE,
224 .sn_move = 4096,
225 .sn_pressure = 32,
226 },
227 { .name = MT_CLS_EGALAX_SERIAL,
228 .quirks = MT_QUIRK_SLOT_IS_CONTACTID |
229 MT_QUIRK_ALWAYS_VALID,
230 .sn_move = 4096,
231 .sn_pressure = 32,
232 },
233 { .name = MT_CLS_TOPSEED,
234 .quirks = MT_QUIRK_ALWAYS_VALID,
235 .is_indirect = true,
236 .maxcontacts = 2,
237 },
238 { .name = MT_CLS_PANASONIC,
239 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP,
240 .maxcontacts = 4 },
241 { .name = MT_CLS_GENERALTOUCH_TWOFINGERS,
242 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP |
243 MT_QUIRK_VALID_IS_INRANGE |
244 MT_QUIRK_SLOT_IS_CONTACTID,
245 .maxcontacts = 2
246 },
247 { .name = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
248 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP |
249 MT_QUIRK_SLOT_IS_CONTACTID
250 },
251
252 { .name = MT_CLS_FLATFROG,
253 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP |
254 MT_QUIRK_NO_AREA,
255 .sn_move = 2048,
256 .maxcontacts = 40,
257 },
258 { }
259 };
260
261 static ssize_t mt_show_quirks(struct device *dev,
262 struct device_attribute *attr,
263 char *buf)
264 {
265 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
266 struct mt_device *td = hid_get_drvdata(hdev);
267
268 return sprintf(buf, "%u\n", td->mtclass.quirks);
269 }
270
271 static ssize_t mt_set_quirks(struct device *dev,
272 struct device_attribute *attr,
273 const char *buf, size_t count)
274 {
275 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
276 struct mt_device *td = hid_get_drvdata(hdev);
277
278 unsigned long val;
279
280 if (kstrtoul(buf, 0, &val))
281 return -EINVAL;
282
283 td->mtclass.quirks = val;
284
285 if (td->cc_index < 0)
286 td->mtclass.quirks &= ~MT_QUIRK_CONTACT_CNT_ACCURATE;
287
288 return count;
289 }
290
291 static DEVICE_ATTR(quirks, S_IWUSR | S_IRUGO, mt_show_quirks, mt_set_quirks);
292
293 static struct attribute *sysfs_attrs[] = {
294 &dev_attr_quirks.attr,
295 NULL
296 };
297
298 static struct attribute_group mt_attribute_group = {
299 .attrs = sysfs_attrs
300 };
301
302 static void mt_feature_mapping(struct hid_device *hdev,
303 struct hid_field *field, struct hid_usage *usage)
304 {
305 struct mt_device *td = hid_get_drvdata(hdev);
306
307 switch (usage->hid) {
308 case HID_DG_INPUTMODE:
309 /* Ignore if value index is out of bounds. */
310 if (usage->usage_index >= field->report_count) {
311 dev_err(&hdev->dev, "HID_DG_INPUTMODE out of range\n");
312 break;
313 }
314
315 td->inputmode = field->report->id;
316 td->inputmode_index = usage->usage_index;
317
318 break;
319 case HID_DG_CONTACTMAX:
320 td->maxcontact_report_id = field->report->id;
321 td->maxcontacts = field->value[0];
322 if (!td->maxcontacts &&
323 field->logical_maximum <= MT_MAX_MAXCONTACT)
324 td->maxcontacts = field->logical_maximum;
325 if (td->mtclass.maxcontacts)
326 /* check if the maxcontacts is given by the class */
327 td->maxcontacts = td->mtclass.maxcontacts;
328
329 break;
330 }
331 }
332
333 static void set_abs(struct input_dev *input, unsigned int code,
334 struct hid_field *field, int snratio)
335 {
336 int fmin = field->logical_minimum;
337 int fmax = field->logical_maximum;
338 int fuzz = snratio ? (fmax - fmin) / snratio : 0;
339 input_set_abs_params(input, code, fmin, fmax, fuzz, 0);
340 input_abs_set_res(input, code, hidinput_calc_abs_res(field, code));
341 }
342
343 static void mt_store_field(struct hid_usage *usage, struct mt_device *td,
344 struct hid_input *hi)
345 {
346 struct mt_fields *f = td->fields;
347
348 if (f->length >= HID_MAX_FIELDS)
349 return;
350
351 f->usages[f->length++] = usage->hid;
352 }
353
354 static int mt_touch_input_mapping(struct hid_device *hdev, struct hid_input *hi,
355 struct hid_field *field, struct hid_usage *usage,
356 unsigned long **bit, int *max)
357 {
358 struct mt_device *td = hid_get_drvdata(hdev);
359 struct mt_class *cls = &td->mtclass;
360 int code;
361 struct hid_usage *prev_usage = NULL;
362
363 if (field->application == HID_DG_TOUCHSCREEN)
364 td->mt_flags |= INPUT_MT_DIRECT;
365
366 /*
367 * Model touchscreens providing buttons as touchpads.
368 */
369 if (field->application == HID_DG_TOUCHPAD ||
370 (usage->hid & HID_USAGE_PAGE) == HID_UP_BUTTON) {
371 td->mt_flags |= INPUT_MT_POINTER;
372 td->inputmode_value = MT_INPUTMODE_TOUCHPAD;
373 }
374
375 if (usage->usage_index)
376 prev_usage = &field->usage[usage->usage_index - 1];
377
378 switch (usage->hid & HID_USAGE_PAGE) {
379
380 case HID_UP_GENDESK:
381 switch (usage->hid) {
382 case HID_GD_X:
383 if (prev_usage && (prev_usage->hid == usage->hid)) {
384 hid_map_usage(hi, usage, bit, max,
385 EV_ABS, ABS_MT_TOOL_X);
386 set_abs(hi->input, ABS_MT_TOOL_X, field,
387 cls->sn_move);
388 } else {
389 hid_map_usage(hi, usage, bit, max,
390 EV_ABS, ABS_MT_POSITION_X);
391 set_abs(hi->input, ABS_MT_POSITION_X, field,
392 cls->sn_move);
393 }
394
395 mt_store_field(usage, td, hi);
396 return 1;
397 case HID_GD_Y:
398 if (prev_usage && (prev_usage->hid == usage->hid)) {
399 hid_map_usage(hi, usage, bit, max,
400 EV_ABS, ABS_MT_TOOL_Y);
401 set_abs(hi->input, ABS_MT_TOOL_Y, field,
402 cls->sn_move);
403 } else {
404 hid_map_usage(hi, usage, bit, max,
405 EV_ABS, ABS_MT_POSITION_Y);
406 set_abs(hi->input, ABS_MT_POSITION_Y, field,
407 cls->sn_move);
408 }
409
410 mt_store_field(usage, td, hi);
411 return 1;
412 }
413 return 0;
414
415 case HID_UP_DIGITIZER:
416 switch (usage->hid) {
417 case HID_DG_INRANGE:
418 if (cls->quirks & MT_QUIRK_HOVERING) {
419 hid_map_usage(hi, usage, bit, max,
420 EV_ABS, ABS_MT_DISTANCE);
421 input_set_abs_params(hi->input,
422 ABS_MT_DISTANCE, 0, 1, 0, 0);
423 }
424 mt_store_field(usage, td, hi);
425 return 1;
426 case HID_DG_CONFIDENCE:
427 mt_store_field(usage, td, hi);
428 return 1;
429 case HID_DG_TIPSWITCH:
430 hid_map_usage(hi, usage, bit, max, EV_KEY, BTN_TOUCH);
431 input_set_capability(hi->input, EV_KEY, BTN_TOUCH);
432 mt_store_field(usage, td, hi);
433 return 1;
434 case HID_DG_CONTACTID:
435 mt_store_field(usage, td, hi);
436 td->touches_by_report++;
437 td->mt_report_id = field->report->id;
438 return 1;
439 case HID_DG_WIDTH:
440 hid_map_usage(hi, usage, bit, max,
441 EV_ABS, ABS_MT_TOUCH_MAJOR);
442 if (!(cls->quirks & MT_QUIRK_NO_AREA))
443 set_abs(hi->input, ABS_MT_TOUCH_MAJOR, field,
444 cls->sn_width);
445 mt_store_field(usage, td, hi);
446 return 1;
447 case HID_DG_HEIGHT:
448 hid_map_usage(hi, usage, bit, max,
449 EV_ABS, ABS_MT_TOUCH_MINOR);
450 if (!(cls->quirks & MT_QUIRK_NO_AREA)) {
451 set_abs(hi->input, ABS_MT_TOUCH_MINOR, field,
452 cls->sn_height);
453 input_set_abs_params(hi->input,
454 ABS_MT_ORIENTATION, 0, 1, 0, 0);
455 }
456 mt_store_field(usage, td, hi);
457 return 1;
458 case HID_DG_TIPPRESSURE:
459 hid_map_usage(hi, usage, bit, max,
460 EV_ABS, ABS_MT_PRESSURE);
461 set_abs(hi->input, ABS_MT_PRESSURE, field,
462 cls->sn_pressure);
463 mt_store_field(usage, td, hi);
464 return 1;
465 case HID_DG_CONTACTCOUNT:
466 /* Ignore if indexes are out of bounds. */
467 if (field->index >= field->report->maxfield ||
468 usage->usage_index >= field->report_count)
469 return 1;
470 td->cc_index = field->index;
471 td->cc_value_index = usage->usage_index;
472 return 1;
473 case HID_DG_CONTACTMAX:
474 /* we don't set td->last_slot_field as contactcount and
475 * contact max are global to the report */
476 return -1;
477 case HID_DG_TOUCH:
478 /* Legacy devices use TIPSWITCH and not TOUCH.
479 * Let's just ignore this field. */
480 return -1;
481 }
482 /* let hid-input decide for the others */
483 return 0;
484
485 case HID_UP_BUTTON:
486 code = BTN_MOUSE + ((usage->hid - 1) & HID_USAGE);
487 hid_map_usage(hi, usage, bit, max, EV_KEY, code);
488 input_set_capability(hi->input, EV_KEY, code);
489 return 1;
490
491 case 0xff000000:
492 /* we do not want to map these: no input-oriented meaning */
493 return -1;
494 }
495
496 return 0;
497 }
498
499 static int mt_touch_input_mapped(struct hid_device *hdev, struct hid_input *hi,
500 struct hid_field *field, struct hid_usage *usage,
501 unsigned long **bit, int *max)
502 {
503 if (usage->type == EV_KEY || usage->type == EV_ABS)
504 set_bit(usage->type, hi->input->evbit);
505
506 return -1;
507 }
508
509 static int mt_compute_slot(struct mt_device *td, struct input_dev *input)
510 {
511 __s32 quirks = td->mtclass.quirks;
512
513 if (quirks & MT_QUIRK_SLOT_IS_CONTACTID)
514 return td->curdata.contactid;
515
516 if (quirks & MT_QUIRK_CYPRESS)
517 return cypress_compute_slot(td);
518
519 if (quirks & MT_QUIRK_SLOT_IS_CONTACTNUMBER)
520 return td->num_received;
521
522 if (quirks & MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE)
523 return td->curdata.contactid - 1;
524
525 return input_mt_get_slot_by_key(input, td->curdata.contactid);
526 }
527
528 /*
529 * this function is called when a whole contact has been processed,
530 * so that it can assign it to a slot and store the data there
531 */
532 static void mt_complete_slot(struct mt_device *td, struct input_dev *input)
533 {
534 if ((td->mtclass.quirks & MT_QUIRK_CONTACT_CNT_ACCURATE) &&
535 td->num_received >= td->num_expected)
536 return;
537
538 if (td->curvalid || (td->mtclass.quirks & MT_QUIRK_ALWAYS_VALID)) {
539 int slotnum = mt_compute_slot(td, input);
540 struct mt_slot *s = &td->curdata;
541 struct input_mt *mt = input->mt;
542
543 if (slotnum < 0 || slotnum >= td->maxcontacts)
544 return;
545
546 if ((td->mtclass.quirks & MT_QUIRK_IGNORE_DUPLICATES) && mt) {
547 struct input_mt_slot *slot = &mt->slots[slotnum];
548 if (input_mt_is_active(slot) &&
549 input_mt_is_used(mt, slot))
550 return;
551 }
552
553 input_mt_slot(input, slotnum);
554 input_mt_report_slot_state(input, MT_TOOL_FINGER,
555 s->touch_state || s->inrange_state);
556 if (s->touch_state || s->inrange_state) {
557 /* this finger is in proximity of the sensor */
558 int wide = (s->w > s->h);
559 /* divided by two to match visual scale of touch */
560 int major = max(s->w, s->h) >> 1;
561 int minor = min(s->w, s->h) >> 1;
562
563 input_event(input, EV_ABS, ABS_MT_POSITION_X, s->x);
564 input_event(input, EV_ABS, ABS_MT_POSITION_Y, s->y);
565 input_event(input, EV_ABS, ABS_MT_TOOL_X, s->cx);
566 input_event(input, EV_ABS, ABS_MT_TOOL_Y, s->cy);
567 input_event(input, EV_ABS, ABS_MT_DISTANCE,
568 !s->touch_state);
569 input_event(input, EV_ABS, ABS_MT_ORIENTATION, wide);
570 input_event(input, EV_ABS, ABS_MT_PRESSURE, s->p);
571 input_event(input, EV_ABS, ABS_MT_TOUCH_MAJOR, major);
572 input_event(input, EV_ABS, ABS_MT_TOUCH_MINOR, minor);
573 }
574 }
575
576 td->num_received++;
577 }
578
579 /*
580 * this function is called when a whole packet has been received and processed,
581 * so that it can decide what to send to the input layer.
582 */
583 static void mt_sync_frame(struct mt_device *td, struct input_dev *input)
584 {
585 input_mt_sync_frame(input);
586 input_sync(input);
587 td->num_received = 0;
588 }
589
590 static int mt_touch_event(struct hid_device *hid, struct hid_field *field,
591 struct hid_usage *usage, __s32 value)
592 {
593 /* we will handle the hidinput part later, now remains hiddev */
594 if (hid->claimed & HID_CLAIMED_HIDDEV && hid->hiddev_hid_event)
595 hid->hiddev_hid_event(hid, field, usage, value);
596
597 return 1;
598 }
599
600 static void mt_process_mt_event(struct hid_device *hid, struct hid_field *field,
601 struct hid_usage *usage, __s32 value)
602 {
603 struct mt_device *td = hid_get_drvdata(hid);
604 __s32 quirks = td->mtclass.quirks;
605 struct input_dev *input = field->hidinput->input;
606
607 if (hid->claimed & HID_CLAIMED_INPUT) {
608 switch (usage->hid) {
609 case HID_DG_INRANGE:
610 if (quirks & MT_QUIRK_VALID_IS_INRANGE)
611 td->curvalid = value;
612 if (quirks & MT_QUIRK_HOVERING)
613 td->curdata.inrange_state = value;
614 break;
615 case HID_DG_TIPSWITCH:
616 if (quirks & MT_QUIRK_NOT_SEEN_MEANS_UP)
617 td->curvalid = value;
618 td->curdata.touch_state = value;
619 break;
620 case HID_DG_CONFIDENCE:
621 if (quirks & MT_QUIRK_VALID_IS_CONFIDENCE)
622 td->curvalid = value;
623 break;
624 case HID_DG_CONTACTID:
625 td->curdata.contactid = value;
626 break;
627 case HID_DG_TIPPRESSURE:
628 td->curdata.p = value;
629 break;
630 case HID_GD_X:
631 if (usage->code == ABS_MT_TOOL_X)
632 td->curdata.cx = value;
633 else
634 td->curdata.x = value;
635 break;
636 case HID_GD_Y:
637 if (usage->code == ABS_MT_TOOL_Y)
638 td->curdata.cy = value;
639 else
640 td->curdata.y = value;
641 break;
642 case HID_DG_WIDTH:
643 td->curdata.w = value;
644 break;
645 case HID_DG_HEIGHT:
646 td->curdata.h = value;
647 break;
648 case HID_DG_CONTACTCOUNT:
649 break;
650 case HID_DG_TOUCH:
651 /* do nothing */
652 break;
653
654 default:
655 if (usage->type)
656 input_event(input, usage->type, usage->code,
657 value);
658 return;
659 }
660
661 if (usage->usage_index + 1 == field->report_count) {
662 /* we only take into account the last report. */
663 if (usage->hid == td->last_slot_field)
664 mt_complete_slot(td, field->hidinput->input);
665 }
666
667 }
668 }
669
670 static void mt_touch_report(struct hid_device *hid, struct hid_report *report)
671 {
672 struct mt_device *td = hid_get_drvdata(hid);
673 struct hid_field *field;
674 unsigned count;
675 int r, n;
676
677 /*
678 * Includes multi-packet support where subsequent
679 * packets are sent with zero contactcount.
680 */
681 if (td->cc_index >= 0) {
682 struct hid_field *field = report->field[td->cc_index];
683 int value = field->value[td->cc_value_index];
684 if (value)
685 td->num_expected = value;
686 }
687
688 for (r = 0; r < report->maxfield; r++) {
689 field = report->field[r];
690 count = field->report_count;
691
692 if (!(HID_MAIN_ITEM_VARIABLE & field->flags))
693 continue;
694
695 for (n = 0; n < count; n++)
696 mt_process_mt_event(hid, field, &field->usage[n],
697 field->value[n]);
698 }
699
700 if (td->num_received >= td->num_expected)
701 mt_sync_frame(td, report->field[0]->hidinput->input);
702 }
703
704 static void mt_touch_input_configured(struct hid_device *hdev,
705 struct hid_input *hi)
706 {
707 struct mt_device *td = hid_get_drvdata(hdev);
708 struct mt_class *cls = &td->mtclass;
709 struct input_dev *input = hi->input;
710
711 if (!td->maxcontacts)
712 td->maxcontacts = MT_DEFAULT_MAXCONTACT;
713
714 mt_post_parse(td);
715 if (td->serial_maybe)
716 mt_post_parse_default_settings(td);
717
718 if (cls->is_indirect)
719 td->mt_flags |= INPUT_MT_POINTER;
720
721 if (cls->quirks & MT_QUIRK_NOT_SEEN_MEANS_UP)
722 td->mt_flags |= INPUT_MT_DROP_UNUSED;
723
724 input_mt_init_slots(input, td->maxcontacts, td->mt_flags);
725
726 td->mt_flags = 0;
727 }
728
729 static int mt_input_mapping(struct hid_device *hdev, struct hid_input *hi,
730 struct hid_field *field, struct hid_usage *usage,
731 unsigned long **bit, int *max)
732 {
733 struct mt_device *td = hid_get_drvdata(hdev);
734
735 /*
736 * If mtclass.export_all_inputs is not set, only map fields from
737 * TouchScreen or TouchPad collections. We need to ignore fields
738 * that belong to other collections such as Mouse that might have
739 * the same GenericDesktop usages.
740 */
741 if (!td->mtclass.export_all_inputs &&
742 field->application != HID_DG_TOUCHSCREEN &&
743 field->application != HID_DG_PEN &&
744 field->application != HID_DG_TOUCHPAD)
745 return -1;
746
747 /*
748 * some egalax touchscreens have "application == HID_DG_TOUCHSCREEN"
749 * for the stylus.
750 */
751 if (field->physical == HID_DG_STYLUS)
752 return 0;
753
754 if (field->application == HID_DG_TOUCHSCREEN ||
755 field->application == HID_DG_TOUCHPAD)
756 return mt_touch_input_mapping(hdev, hi, field, usage, bit, max);
757
758 /* let hid-core decide for the others */
759 return 0;
760 }
761
762 static int mt_input_mapped(struct hid_device *hdev, struct hid_input *hi,
763 struct hid_field *field, struct hid_usage *usage,
764 unsigned long **bit, int *max)
765 {
766 /*
767 * some egalax touchscreens have "application == HID_DG_TOUCHSCREEN"
768 * for the stylus.
769 */
770 if (field->physical == HID_DG_STYLUS)
771 return 0;
772
773 if (field->application == HID_DG_TOUCHSCREEN ||
774 field->application == HID_DG_TOUCHPAD)
775 return mt_touch_input_mapped(hdev, hi, field, usage, bit, max);
776
777 /* let hid-core decide for the others */
778 return 0;
779 }
780
781 static int mt_event(struct hid_device *hid, struct hid_field *field,
782 struct hid_usage *usage, __s32 value)
783 {
784 struct mt_device *td = hid_get_drvdata(hid);
785
786 if (field->report->id == td->mt_report_id)
787 return mt_touch_event(hid, field, usage, value);
788
789 return 0;
790 }
791
792 static void mt_report(struct hid_device *hid, struct hid_report *report)
793 {
794 struct mt_device *td = hid_get_drvdata(hid);
795 struct hid_field *field = report->field[0];
796
797 if (!(hid->claimed & HID_CLAIMED_INPUT))
798 return;
799
800 if (report->id == td->mt_report_id)
801 return mt_touch_report(hid, report);
802
803 if (field && field->hidinput && field->hidinput->input)
804 input_sync(field->hidinput->input);
805 }
806
807 static void mt_set_input_mode(struct hid_device *hdev)
808 {
809 struct mt_device *td = hid_get_drvdata(hdev);
810 struct hid_report *r;
811 struct hid_report_enum *re;
812
813 if (td->inputmode < 0)
814 return;
815
816 re = &(hdev->report_enum[HID_FEATURE_REPORT]);
817 r = re->report_id_hash[td->inputmode];
818 if (r) {
819 r->field[0]->value[td->inputmode_index] = td->inputmode_value;
820 hid_hw_request(hdev, r, HID_REQ_SET_REPORT);
821 }
822 }
823
824 static void mt_set_maxcontacts(struct hid_device *hdev)
825 {
826 struct mt_device *td = hid_get_drvdata(hdev);
827 struct hid_report *r;
828 struct hid_report_enum *re;
829 int fieldmax, max;
830
831 if (td->maxcontact_report_id < 0)
832 return;
833
834 if (!td->mtclass.maxcontacts)
835 return;
836
837 re = &hdev->report_enum[HID_FEATURE_REPORT];
838 r = re->report_id_hash[td->maxcontact_report_id];
839 if (r) {
840 max = td->mtclass.maxcontacts;
841 fieldmax = r->field[0]->logical_maximum;
842 max = min(fieldmax, max);
843 if (r->field[0]->value[0] != max) {
844 r->field[0]->value[0] = max;
845 hid_hw_request(hdev, r, HID_REQ_SET_REPORT);
846 }
847 }
848 }
849
850 static void mt_post_parse_default_settings(struct mt_device *td)
851 {
852 __s32 quirks = td->mtclass.quirks;
853
854 /* unknown serial device needs special quirks */
855 if (td->touches_by_report == 1) {
856 quirks |= MT_QUIRK_ALWAYS_VALID;
857 quirks &= ~MT_QUIRK_NOT_SEEN_MEANS_UP;
858 quirks &= ~MT_QUIRK_VALID_IS_INRANGE;
859 quirks &= ~MT_QUIRK_VALID_IS_CONFIDENCE;
860 quirks &= ~MT_QUIRK_CONTACT_CNT_ACCURATE;
861 }
862
863 td->mtclass.quirks = quirks;
864 }
865
866 static void mt_post_parse(struct mt_device *td)
867 {
868 struct mt_fields *f = td->fields;
869 struct mt_class *cls = &td->mtclass;
870
871 if (td->touches_by_report > 0) {
872 int field_count_per_touch = f->length / td->touches_by_report;
873 td->last_slot_field = f->usages[field_count_per_touch - 1];
874 }
875
876 if (td->cc_index < 0)
877 cls->quirks &= ~MT_QUIRK_CONTACT_CNT_ACCURATE;
878 }
879
880 static void mt_input_configured(struct hid_device *hdev, struct hid_input *hi)
881 {
882 struct mt_device *td = hid_get_drvdata(hdev);
883 char *name;
884 const char *suffix = NULL;
885 struct hid_field *field = hi->report->field[0];
886
887 if (hi->report->id == td->mt_report_id)
888 mt_touch_input_configured(hdev, hi);
889
890 /*
891 * some egalax touchscreens have "application == HID_DG_TOUCHSCREEN"
892 * for the stylus. Check this first, and then rely on the application
893 * field.
894 */
895 if (hi->report->field[0]->physical == HID_DG_STYLUS) {
896 suffix = "Pen";
897 /* force BTN_STYLUS to allow tablet matching in udev */
898 __set_bit(BTN_STYLUS, hi->input->keybit);
899 } else {
900 switch (field->application) {
901 case HID_GD_KEYBOARD:
902 suffix = "Keyboard";
903 break;
904 case HID_GD_KEYPAD:
905 suffix = "Keypad";
906 break;
907 case HID_GD_MOUSE:
908 suffix = "Mouse";
909 break;
910 case HID_DG_STYLUS:
911 suffix = "Pen";
912 /* force BTN_STYLUS to allow tablet matching in udev */
913 __set_bit(BTN_STYLUS, hi->input->keybit);
914 break;
915 case HID_DG_TOUCHSCREEN:
916 /* we do not set suffix = "Touchscreen" */
917 break;
918 case HID_GD_SYSTEM_CONTROL:
919 suffix = "System Control";
920 break;
921 case HID_CP_CONSUMER_CONTROL:
922 suffix = "Consumer Control";
923 break;
924 default:
925 suffix = "UNKNOWN";
926 break;
927 }
928 }
929
930 if (suffix) {
931 name = devm_kzalloc(&hi->input->dev,
932 strlen(hdev->name) + strlen(suffix) + 2,
933 GFP_KERNEL);
934 if (name) {
935 sprintf(name, "%s %s", hdev->name, suffix);
936 hi->input->name = name;
937 }
938 }
939 }
940
941 static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id)
942 {
943 int ret, i;
944 struct mt_device *td;
945 struct mt_class *mtclass = mt_classes; /* MT_CLS_DEFAULT */
946
947 for (i = 0; mt_classes[i].name ; i++) {
948 if (id->driver_data == mt_classes[i].name) {
949 mtclass = &(mt_classes[i]);
950 break;
951 }
952 }
953
954 /* This allows the driver to correctly support devices
955 * that emit events over several HID messages.
956 */
957 hdev->quirks |= HID_QUIRK_NO_INPUT_SYNC;
958
959 /*
960 * This allows the driver to handle different input sensors
961 * that emits events through different reports on the same HID
962 * device.
963 */
964 hdev->quirks |= HID_QUIRK_MULTI_INPUT;
965 hdev->quirks |= HID_QUIRK_NO_EMPTY_INPUT;
966
967 /*
968 * Handle special quirks for Windows 8 certified devices.
969 */
970 if (id->group == HID_GROUP_MULTITOUCH_WIN_8)
971 /*
972 * Some multitouch screens do not like to be polled for input
973 * reports. Fortunately, the Win8 spec says that all touches
974 * should be sent during each report, making the initialization
975 * of input reports unnecessary.
976 */
977 hdev->quirks |= HID_QUIRK_NO_INIT_INPUT_REPORTS;
978
979 td = devm_kzalloc(&hdev->dev, sizeof(struct mt_device), GFP_KERNEL);
980 if (!td) {
981 dev_err(&hdev->dev, "cannot allocate multitouch data\n");
982 return -ENOMEM;
983 }
984 td->mtclass = *mtclass;
985 td->inputmode = -1;
986 td->maxcontact_report_id = -1;
987 td->inputmode_value = MT_INPUTMODE_TOUCHSCREEN;
988 td->cc_index = -1;
989 td->mt_report_id = -1;
990 hid_set_drvdata(hdev, td);
991
992 td->fields = devm_kzalloc(&hdev->dev, sizeof(struct mt_fields),
993 GFP_KERNEL);
994 if (!td->fields) {
995 dev_err(&hdev->dev, "cannot allocate multitouch fields data\n");
996 return -ENOMEM;
997 }
998
999 if (id->vendor == HID_ANY_ID && id->product == HID_ANY_ID)
1000 td->serial_maybe = true;
1001
1002 ret = hid_parse(hdev);
1003 if (ret != 0)
1004 return ret;
1005
1006 ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
1007 if (ret)
1008 return ret;
1009
1010 ret = sysfs_create_group(&hdev->dev.kobj, &mt_attribute_group);
1011
1012 mt_set_maxcontacts(hdev);
1013 mt_set_input_mode(hdev);
1014
1015 /* release .fields memory as it is not used anymore */
1016 devm_kfree(&hdev->dev, td->fields);
1017 td->fields = NULL;
1018
1019 return 0;
1020 }
1021
1022 #ifdef CONFIG_PM
1023 static int mt_reset_resume(struct hid_device *hdev)
1024 {
1025 mt_set_maxcontacts(hdev);
1026 mt_set_input_mode(hdev);
1027 return 0;
1028 }
1029
1030 static int mt_resume(struct hid_device *hdev)
1031 {
1032 /* Some Elan legacy devices require SET_IDLE to be set on resume.
1033 * It should be safe to send it to other devices too.
1034 * Tested on 3M, Stantum, Cypress, Zytronic, eGalax, and Elan panels. */
1035
1036 hid_hw_idle(hdev, 0, 0, HID_REQ_SET_IDLE);
1037
1038 return 0;
1039 }
1040 #endif
1041
1042 static void mt_remove(struct hid_device *hdev)
1043 {
1044 sysfs_remove_group(&hdev->dev.kobj, &mt_attribute_group);
1045 hid_hw_stop(hdev);
1046 }
1047
1048 /*
1049 * This list contains only:
1050 * - VID/PID of products not working with the default multitouch handling
1051 * - 2 generic rules.
1052 * So there is no point in adding here any device with MT_CLS_DEFAULT.
1053 */
1054 static const struct hid_device_id mt_devices[] = {
1055
1056 /* 3M panels */
1057 { .driver_data = MT_CLS_3M,
1058 MT_USB_DEVICE(USB_VENDOR_ID_3M,
1059 USB_DEVICE_ID_3M1968) },
1060 { .driver_data = MT_CLS_3M,
1061 MT_USB_DEVICE(USB_VENDOR_ID_3M,
1062 USB_DEVICE_ID_3M2256) },
1063 { .driver_data = MT_CLS_3M,
1064 MT_USB_DEVICE(USB_VENDOR_ID_3M,
1065 USB_DEVICE_ID_3M3266) },
1066
1067 /* Anton devices */
1068 { .driver_data = MT_CLS_EXPORT_ALL_INPUTS,
1069 MT_USB_DEVICE(USB_VENDOR_ID_ANTON,
1070 USB_DEVICE_ID_ANTON_TOUCH_PAD) },
1071
1072 /* Atmel panels */
1073 { .driver_data = MT_CLS_SERIAL,
1074 MT_USB_DEVICE(USB_VENDOR_ID_ATMEL,
1075 USB_DEVICE_ID_ATMEL_MXT_DIGITIZER) },
1076
1077 /* Baanto multitouch devices */
1078 { .driver_data = MT_CLS_NSMU,
1079 MT_USB_DEVICE(USB_VENDOR_ID_BAANTO,
1080 USB_DEVICE_ID_BAANTO_MT_190W2) },
1081
1082 /* Cando panels */
1083 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
1084 MT_USB_DEVICE(USB_VENDOR_ID_CANDO,
1085 USB_DEVICE_ID_CANDO_MULTI_TOUCH) },
1086 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
1087 MT_USB_DEVICE(USB_VENDOR_ID_CANDO,
1088 USB_DEVICE_ID_CANDO_MULTI_TOUCH_15_6) },
1089
1090 /* Chunghwa Telecom touch panels */
1091 { .driver_data = MT_CLS_NSMU,
1092 MT_USB_DEVICE(USB_VENDOR_ID_CHUNGHWAT,
1093 USB_DEVICE_ID_CHUNGHWAT_MULTITOUCH) },
1094
1095 /* CVTouch panels */
1096 { .driver_data = MT_CLS_NSMU,
1097 MT_USB_DEVICE(USB_VENDOR_ID_CVTOUCH,
1098 USB_DEVICE_ID_CVTOUCH_SCREEN) },
1099
1100 /* eGalax devices (resistive) */
1101 { .driver_data = MT_CLS_EGALAX,
1102 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1103 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_480D) },
1104 { .driver_data = MT_CLS_EGALAX,
1105 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1106 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_480E) },
1107
1108 /* eGalax devices (capacitive) */
1109 { .driver_data = MT_CLS_EGALAX_SERIAL,
1110 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1111 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7207) },
1112 { .driver_data = MT_CLS_EGALAX,
1113 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1114 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_720C) },
1115 { .driver_data = MT_CLS_EGALAX_SERIAL,
1116 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1117 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7224) },
1118 { .driver_data = MT_CLS_EGALAX_SERIAL,
1119 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1120 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_722A) },
1121 { .driver_data = MT_CLS_EGALAX_SERIAL,
1122 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1123 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_725E) },
1124 { .driver_data = MT_CLS_EGALAX_SERIAL,
1125 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1126 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7262) },
1127 { .driver_data = MT_CLS_EGALAX,
1128 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1129 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_726B) },
1130 { .driver_data = MT_CLS_EGALAX,
1131 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1132 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72A1) },
1133 { .driver_data = MT_CLS_EGALAX_SERIAL,
1134 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1135 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72AA) },
1136 { .driver_data = MT_CLS_EGALAX,
1137 HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
1138 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72C4) },
1139 { .driver_data = MT_CLS_EGALAX,
1140 HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
1141 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72D0) },
1142 { .driver_data = MT_CLS_EGALAX,
1143 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1144 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72FA) },
1145 { .driver_data = MT_CLS_EGALAX,
1146 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1147 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7302) },
1148 { .driver_data = MT_CLS_EGALAX_SERIAL,
1149 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1150 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7349) },
1151 { .driver_data = MT_CLS_EGALAX_SERIAL,
1152 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1153 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_73F7) },
1154 { .driver_data = MT_CLS_EGALAX_SERIAL,
1155 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1156 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_A001) },
1157
1158 /* Flatfrog Panels */
1159 { .driver_data = MT_CLS_FLATFROG,
1160 MT_USB_DEVICE(USB_VENDOR_ID_FLATFROG,
1161 USB_DEVICE_ID_MULTITOUCH_3200) },
1162
1163 /* GeneralTouch panel */
1164 { .driver_data = MT_CLS_GENERALTOUCH_TWOFINGERS,
1165 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
1166 USB_DEVICE_ID_GENERAL_TOUCH_WIN7_TWOFINGERS) },
1167 { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
1168 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
1169 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PWT_TENFINGERS) },
1170 { .driver_data = MT_CLS_GENERALTOUCH_TWOFINGERS,
1171 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
1172 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_0101) },
1173 { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
1174 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
1175 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_0102) },
1176 { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
1177 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
1178 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_0106) },
1179 { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
1180 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
1181 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_010A) },
1182 { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
1183 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
1184 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_E100) },
1185
1186 /* Gametel game controller */
1187 { .driver_data = MT_CLS_NSMU,
1188 MT_BT_DEVICE(USB_VENDOR_ID_FRUCTEL,
1189 USB_DEVICE_ID_GAMETEL_MT_MODE) },
1190
1191 /* GoodTouch panels */
1192 { .driver_data = MT_CLS_NSMU,
1193 MT_USB_DEVICE(USB_VENDOR_ID_GOODTOUCH,
1194 USB_DEVICE_ID_GOODTOUCH_000f) },
1195
1196 /* Hanvon panels */
1197 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID,
1198 MT_USB_DEVICE(USB_VENDOR_ID_HANVON_ALT,
1199 USB_DEVICE_ID_HANVON_ALT_MULTITOUCH) },
1200
1201 /* Ilitek dual touch panel */
1202 { .driver_data = MT_CLS_NSMU,
1203 MT_USB_DEVICE(USB_VENDOR_ID_ILITEK,
1204 USB_DEVICE_ID_ILITEK_MULTITOUCH) },
1205
1206 /* MosArt panels */
1207 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
1208 MT_USB_DEVICE(USB_VENDOR_ID_ASUS,
1209 USB_DEVICE_ID_ASUS_T91MT)},
1210 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
1211 MT_USB_DEVICE(USB_VENDOR_ID_ASUS,
1212 USB_DEVICE_ID_ASUSTEK_MULTITOUCH_YFO) },
1213 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
1214 MT_USB_DEVICE(USB_VENDOR_ID_TURBOX,
1215 USB_DEVICE_ID_TURBOX_TOUCHSCREEN_MOSART) },
1216
1217 /* Panasonic panels */
1218 { .driver_data = MT_CLS_PANASONIC,
1219 MT_USB_DEVICE(USB_VENDOR_ID_PANASONIC,
1220 USB_DEVICE_ID_PANABOARD_UBT780) },
1221 { .driver_data = MT_CLS_PANASONIC,
1222 MT_USB_DEVICE(USB_VENDOR_ID_PANASONIC,
1223 USB_DEVICE_ID_PANABOARD_UBT880) },
1224
1225 /* Novatek Panel */
1226 { .driver_data = MT_CLS_NSMU,
1227 MT_USB_DEVICE(USB_VENDOR_ID_NOVATEK,
1228 USB_DEVICE_ID_NOVATEK_PCT) },
1229
1230 /* PixArt optical touch screen */
1231 { .driver_data = MT_CLS_INRANGE_CONTACTNUMBER,
1232 MT_USB_DEVICE(USB_VENDOR_ID_PIXART,
1233 USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN) },
1234 { .driver_data = MT_CLS_INRANGE_CONTACTNUMBER,
1235 MT_USB_DEVICE(USB_VENDOR_ID_PIXART,
1236 USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN1) },
1237 { .driver_data = MT_CLS_INRANGE_CONTACTNUMBER,
1238 MT_USB_DEVICE(USB_VENDOR_ID_PIXART,
1239 USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN2) },
1240
1241 /* PixCir-based panels */
1242 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID,
1243 MT_USB_DEVICE(USB_VENDOR_ID_CANDO,
1244 USB_DEVICE_ID_CANDO_PIXCIR_MULTI_TOUCH) },
1245
1246 /* Quanta-based panels */
1247 { .driver_data = MT_CLS_CONFIDENCE_CONTACT_ID,
1248 MT_USB_DEVICE(USB_VENDOR_ID_QUANTA,
1249 USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3001) },
1250
1251 /* Stantum panels */
1252 { .driver_data = MT_CLS_CONFIDENCE,
1253 MT_USB_DEVICE(USB_VENDOR_ID_STANTUM_STM,
1254 USB_DEVICE_ID_MTP_STM)},
1255
1256 /* TopSeed panels */
1257 { .driver_data = MT_CLS_TOPSEED,
1258 MT_USB_DEVICE(USB_VENDOR_ID_TOPSEED2,
1259 USB_DEVICE_ID_TOPSEED2_PERIPAD_701) },
1260
1261 /* Touch International panels */
1262 { .driver_data = MT_CLS_NSMU,
1263 MT_USB_DEVICE(USB_VENDOR_ID_TOUCH_INTL,
1264 USB_DEVICE_ID_TOUCH_INTL_MULTI_TOUCH) },
1265
1266 /* Unitec panels */
1267 { .driver_data = MT_CLS_NSMU,
1268 MT_USB_DEVICE(USB_VENDOR_ID_UNITEC,
1269 USB_DEVICE_ID_UNITEC_USB_TOUCH_0709) },
1270 { .driver_data = MT_CLS_NSMU,
1271 MT_USB_DEVICE(USB_VENDOR_ID_UNITEC,
1272 USB_DEVICE_ID_UNITEC_USB_TOUCH_0A19) },
1273
1274 /* Wistron panels */
1275 { .driver_data = MT_CLS_NSMU,
1276 MT_USB_DEVICE(USB_VENDOR_ID_WISTRON,
1277 USB_DEVICE_ID_WISTRON_OPTICAL_TOUCH) },
1278
1279 /* XAT */
1280 { .driver_data = MT_CLS_NSMU,
1281 MT_USB_DEVICE(USB_VENDOR_ID_XAT,
1282 USB_DEVICE_ID_XAT_CSR) },
1283
1284 /* Xiroku */
1285 { .driver_data = MT_CLS_NSMU,
1286 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1287 USB_DEVICE_ID_XIROKU_SPX) },
1288 { .driver_data = MT_CLS_NSMU,
1289 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1290 USB_DEVICE_ID_XIROKU_MPX) },
1291 { .driver_data = MT_CLS_NSMU,
1292 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1293 USB_DEVICE_ID_XIROKU_CSR) },
1294 { .driver_data = MT_CLS_NSMU,
1295 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1296 USB_DEVICE_ID_XIROKU_SPX1) },
1297 { .driver_data = MT_CLS_NSMU,
1298 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1299 USB_DEVICE_ID_XIROKU_MPX1) },
1300 { .driver_data = MT_CLS_NSMU,
1301 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1302 USB_DEVICE_ID_XIROKU_CSR1) },
1303 { .driver_data = MT_CLS_NSMU,
1304 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1305 USB_DEVICE_ID_XIROKU_SPX2) },
1306 { .driver_data = MT_CLS_NSMU,
1307 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1308 USB_DEVICE_ID_XIROKU_MPX2) },
1309 { .driver_data = MT_CLS_NSMU,
1310 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1311 USB_DEVICE_ID_XIROKU_CSR2) },
1312
1313 /* Generic MT device */
1314 { HID_DEVICE(HID_BUS_ANY, HID_GROUP_MULTITOUCH, HID_ANY_ID, HID_ANY_ID) },
1315
1316 /* Generic Win 8 certified MT device */
1317 { .driver_data = MT_CLS_WIN_8,
1318 HID_DEVICE(HID_BUS_ANY, HID_GROUP_MULTITOUCH_WIN_8,
1319 HID_ANY_ID, HID_ANY_ID) },
1320 { }
1321 };
1322 MODULE_DEVICE_TABLE(hid, mt_devices);
1323
1324 static const struct hid_usage_id mt_grabbed_usages[] = {
1325 { HID_ANY_ID, HID_ANY_ID, HID_ANY_ID },
1326 { HID_ANY_ID - 1, HID_ANY_ID - 1, HID_ANY_ID - 1}
1327 };
1328
1329 static struct hid_driver mt_driver = {
1330 .name = "hid-multitouch",
1331 .id_table = mt_devices,
1332 .probe = mt_probe,
1333 .remove = mt_remove,
1334 .input_mapping = mt_input_mapping,
1335 .input_mapped = mt_input_mapped,
1336 .input_configured = mt_input_configured,
1337 .feature_mapping = mt_feature_mapping,
1338 .usage_table = mt_grabbed_usages,
1339 .event = mt_event,
1340 .report = mt_report,
1341 #ifdef CONFIG_PM
1342 .reset_resume = mt_reset_resume,
1343 .resume = mt_resume,
1344 #endif
1345 };
1346 module_hid_driver(mt_driver);
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