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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid
[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 struct mt_slot {
72 __s32 x, y, cx, cy, p, w, h;
73 __s32 contactid; /* the device ContactID assigned to this slot */
74 bool touch_state; /* is the touch valid? */
75 bool inrange_state; /* is the finger in proximity of the sensor? */
76 };
77
78 struct mt_class {
79 __s32 name; /* MT_CLS */
80 __s32 quirks;
81 __s32 sn_move; /* Signal/noise ratio for move events */
82 __s32 sn_width; /* Signal/noise ratio for width events */
83 __s32 sn_height; /* Signal/noise ratio for height events */
84 __s32 sn_pressure; /* Signal/noise ratio for pressure events */
85 __u8 maxcontacts;
86 bool is_indirect; /* true for touchpads */
87 };
88
89 struct mt_fields {
90 unsigned usages[HID_MAX_FIELDS];
91 unsigned int length;
92 };
93
94 struct mt_device {
95 struct mt_slot curdata; /* placeholder of incoming data */
96 struct mt_class mtclass; /* our mt device class */
97 struct mt_fields *fields; /* temporary placeholder for storing the
98 multitouch fields */
99 int cc_index; /* contact count field index in the report */
100 int cc_value_index; /* contact count value index in the field */
101 unsigned last_slot_field; /* the last field of a slot */
102 unsigned mt_report_id; /* the report ID of the multitouch device */
103 unsigned pen_report_id; /* the report ID of the pen device */
104 __s16 inputmode; /* InputMode HID feature, -1 if non-existent */
105 __s16 inputmode_index; /* InputMode HID feature index in the report */
106 __s16 maxcontact_report_id; /* Maximum Contact Number HID feature,
107 -1 if non-existent */
108 __u8 num_received; /* how many contacts we received */
109 __u8 num_expected; /* expected last contact index */
110 __u8 maxcontacts;
111 __u8 touches_by_report; /* how many touches are present in one report:
112 * 1 means we should use a serial protocol
113 * > 1 means hybrid (multitouch) protocol */
114 bool serial_maybe; /* need to check for serial protocol */
115 bool curvalid; /* is the current contact valid? */
116 unsigned mt_flags; /* flags to pass to input-mt */
117 };
118
119 static void mt_post_parse_default_settings(struct mt_device *td);
120 static void mt_post_parse(struct mt_device *td);
121
122 /* classes of device behavior */
123 #define MT_CLS_DEFAULT 0x0001
124
125 #define MT_CLS_SERIAL 0x0002
126 #define MT_CLS_CONFIDENCE 0x0003
127 #define MT_CLS_CONFIDENCE_CONTACT_ID 0x0004
128 #define MT_CLS_CONFIDENCE_MINUS_ONE 0x0005
129 #define MT_CLS_DUAL_INRANGE_CONTACTID 0x0006
130 #define MT_CLS_DUAL_INRANGE_CONTACTNUMBER 0x0007
131 #define MT_CLS_DUAL_NSMU_CONTACTID 0x0008
132 #define MT_CLS_INRANGE_CONTACTNUMBER 0x0009
133 #define MT_CLS_NSMU 0x000a
134 #define MT_CLS_DUAL_CONTACT_NUMBER 0x0010
135 #define MT_CLS_DUAL_CONTACT_ID 0x0011
136 #define MT_CLS_WIN_8 0x0012
137
138 /* vendor specific classes */
139 #define MT_CLS_3M 0x0101
140 #define MT_CLS_CYPRESS 0x0102
141 #define MT_CLS_EGALAX 0x0103
142 #define MT_CLS_EGALAX_SERIAL 0x0104
143 #define MT_CLS_TOPSEED 0x0105
144 #define MT_CLS_PANASONIC 0x0106
145 #define MT_CLS_FLATFROG 0x0107
146 #define MT_CLS_GENERALTOUCH_TWOFINGERS 0x0108
147 #define MT_CLS_GENERALTOUCH_PWT_TENFINGERS 0x0109
148
149 #define MT_DEFAULT_MAXCONTACT 10
150 #define MT_MAX_MAXCONTACT 250
151
152 #define MT_USB_DEVICE(v, p) HID_DEVICE(BUS_USB, HID_GROUP_MULTITOUCH, v, p)
153 #define MT_BT_DEVICE(v, p) HID_DEVICE(BUS_BLUETOOTH, HID_GROUP_MULTITOUCH, v, p)
154
155 /*
156 * these device-dependent functions determine what slot corresponds
157 * to a valid contact that was just read.
158 */
159
160 static int cypress_compute_slot(struct mt_device *td)
161 {
162 if (td->curdata.contactid != 0 || td->num_received == 0)
163 return td->curdata.contactid;
164 else
165 return -1;
166 }
167
168 static struct mt_class mt_classes[] = {
169 { .name = MT_CLS_DEFAULT,
170 .quirks = MT_QUIRK_ALWAYS_VALID |
171 MT_QUIRK_CONTACT_CNT_ACCURATE },
172 { .name = MT_CLS_NSMU,
173 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP },
174 { .name = MT_CLS_SERIAL,
175 .quirks = MT_QUIRK_ALWAYS_VALID},
176 { .name = MT_CLS_CONFIDENCE,
177 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE },
178 { .name = MT_CLS_CONFIDENCE_CONTACT_ID,
179 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE |
180 MT_QUIRK_SLOT_IS_CONTACTID },
181 { .name = MT_CLS_CONFIDENCE_MINUS_ONE,
182 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE |
183 MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE },
184 { .name = MT_CLS_DUAL_INRANGE_CONTACTID,
185 .quirks = MT_QUIRK_VALID_IS_INRANGE |
186 MT_QUIRK_SLOT_IS_CONTACTID,
187 .maxcontacts = 2 },
188 { .name = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
189 .quirks = MT_QUIRK_VALID_IS_INRANGE |
190 MT_QUIRK_SLOT_IS_CONTACTNUMBER,
191 .maxcontacts = 2 },
192 { .name = MT_CLS_DUAL_NSMU_CONTACTID,
193 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP |
194 MT_QUIRK_SLOT_IS_CONTACTID,
195 .maxcontacts = 2 },
196 { .name = MT_CLS_INRANGE_CONTACTNUMBER,
197 .quirks = MT_QUIRK_VALID_IS_INRANGE |
198 MT_QUIRK_SLOT_IS_CONTACTNUMBER },
199 { .name = MT_CLS_DUAL_CONTACT_NUMBER,
200 .quirks = MT_QUIRK_ALWAYS_VALID |
201 MT_QUIRK_CONTACT_CNT_ACCURATE |
202 MT_QUIRK_SLOT_IS_CONTACTNUMBER,
203 .maxcontacts = 2 },
204 { .name = MT_CLS_DUAL_CONTACT_ID,
205 .quirks = MT_QUIRK_ALWAYS_VALID |
206 MT_QUIRK_CONTACT_CNT_ACCURATE |
207 MT_QUIRK_SLOT_IS_CONTACTID,
208 .maxcontacts = 2 },
209 { .name = MT_CLS_WIN_8,
210 .quirks = MT_QUIRK_ALWAYS_VALID |
211 MT_QUIRK_IGNORE_DUPLICATES |
212 MT_QUIRK_HOVERING |
213 MT_QUIRK_CONTACT_CNT_ACCURATE },
214
215 /*
216 * vendor specific classes
217 */
218 { .name = MT_CLS_3M,
219 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE |
220 MT_QUIRK_SLOT_IS_CONTACTID,
221 .sn_move = 2048,
222 .sn_width = 128,
223 .sn_height = 128,
224 .maxcontacts = 60,
225 },
226 { .name = MT_CLS_CYPRESS,
227 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP |
228 MT_QUIRK_CYPRESS,
229 .maxcontacts = 10 },
230 { .name = MT_CLS_EGALAX,
231 .quirks = MT_QUIRK_SLOT_IS_CONTACTID |
232 MT_QUIRK_VALID_IS_INRANGE,
233 .sn_move = 4096,
234 .sn_pressure = 32,
235 },
236 { .name = MT_CLS_EGALAX_SERIAL,
237 .quirks = MT_QUIRK_SLOT_IS_CONTACTID |
238 MT_QUIRK_ALWAYS_VALID,
239 .sn_move = 4096,
240 .sn_pressure = 32,
241 },
242 { .name = MT_CLS_TOPSEED,
243 .quirks = MT_QUIRK_ALWAYS_VALID,
244 .is_indirect = true,
245 .maxcontacts = 2,
246 },
247 { .name = MT_CLS_PANASONIC,
248 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP,
249 .maxcontacts = 4 },
250 { .name = MT_CLS_GENERALTOUCH_TWOFINGERS,
251 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP |
252 MT_QUIRK_VALID_IS_INRANGE |
253 MT_QUIRK_SLOT_IS_CONTACTID,
254 .maxcontacts = 2
255 },
256 { .name = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
257 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP |
258 MT_QUIRK_SLOT_IS_CONTACTID
259 },
260
261 { .name = MT_CLS_FLATFROG,
262 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP |
263 MT_QUIRK_NO_AREA,
264 .sn_move = 2048,
265 .maxcontacts = 40,
266 },
267 { }
268 };
269
270 static ssize_t mt_show_quirks(struct device *dev,
271 struct device_attribute *attr,
272 char *buf)
273 {
274 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
275 struct mt_device *td = hid_get_drvdata(hdev);
276
277 return sprintf(buf, "%u\n", td->mtclass.quirks);
278 }
279
280 static ssize_t mt_set_quirks(struct device *dev,
281 struct device_attribute *attr,
282 const char *buf, size_t count)
283 {
284 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
285 struct mt_device *td = hid_get_drvdata(hdev);
286
287 unsigned long val;
288
289 if (kstrtoul(buf, 0, &val))
290 return -EINVAL;
291
292 td->mtclass.quirks = val;
293
294 if (td->cc_index < 0)
295 td->mtclass.quirks &= ~MT_QUIRK_CONTACT_CNT_ACCURATE;
296
297 return count;
298 }
299
300 static DEVICE_ATTR(quirks, S_IWUSR | S_IRUGO, mt_show_quirks, mt_set_quirks);
301
302 static struct attribute *sysfs_attrs[] = {
303 &dev_attr_quirks.attr,
304 NULL
305 };
306
307 static struct attribute_group mt_attribute_group = {
308 .attrs = sysfs_attrs
309 };
310
311 static void mt_feature_mapping(struct hid_device *hdev,
312 struct hid_field *field, struct hid_usage *usage)
313 {
314 struct mt_device *td = hid_get_drvdata(hdev);
315
316 switch (usage->hid) {
317 case HID_DG_INPUTMODE:
318 /* Ignore if value index is out of bounds. */
319 if (usage->usage_index >= field->report_count) {
320 dev_err(&hdev->dev, "HID_DG_INPUTMODE out of range\n");
321 break;
322 }
323
324 td->inputmode = field->report->id;
325 td->inputmode_index = usage->usage_index;
326
327 break;
328 case HID_DG_CONTACTMAX:
329 td->maxcontact_report_id = field->report->id;
330 td->maxcontacts = field->value[0];
331 if (!td->maxcontacts &&
332 field->logical_maximum <= MT_MAX_MAXCONTACT)
333 td->maxcontacts = field->logical_maximum;
334 if (td->mtclass.maxcontacts)
335 /* check if the maxcontacts is given by the class */
336 td->maxcontacts = td->mtclass.maxcontacts;
337
338 break;
339 }
340 }
341
342 static void set_abs(struct input_dev *input, unsigned int code,
343 struct hid_field *field, int snratio)
344 {
345 int fmin = field->logical_minimum;
346 int fmax = field->logical_maximum;
347 int fuzz = snratio ? (fmax - fmin) / snratio : 0;
348 input_set_abs_params(input, code, fmin, fmax, fuzz, 0);
349 input_abs_set_res(input, code, hidinput_calc_abs_res(field, code));
350 }
351
352 static void mt_store_field(struct hid_usage *usage, struct mt_device *td,
353 struct hid_input *hi)
354 {
355 struct mt_fields *f = td->fields;
356
357 if (f->length >= HID_MAX_FIELDS)
358 return;
359
360 f->usages[f->length++] = usage->hid;
361 }
362
363 static int mt_pen_input_mapping(struct hid_device *hdev, struct hid_input *hi,
364 struct hid_field *field, struct hid_usage *usage,
365 unsigned long **bit, int *max)
366 {
367 struct mt_device *td = hid_get_drvdata(hdev);
368
369 td->pen_report_id = field->report->id;
370
371 return 0;
372 }
373
374 static int mt_pen_input_mapped(struct hid_device *hdev, struct hid_input *hi,
375 struct hid_field *field, struct hid_usage *usage,
376 unsigned long **bit, int *max)
377 {
378 return 0;
379 }
380
381 static int mt_pen_event(struct hid_device *hid, struct hid_field *field,
382 struct hid_usage *usage, __s32 value)
383 {
384 /* let hid-input handle it */
385 return 0;
386 }
387
388 static void mt_pen_report(struct hid_device *hid, struct hid_report *report)
389 {
390 struct hid_field *field = report->field[0];
391
392 input_sync(field->hidinput->input);
393 }
394
395 static void mt_pen_input_configured(struct hid_device *hdev,
396 struct hid_input *hi)
397 {
398 /* force BTN_STYLUS to allow tablet matching in udev */
399 __set_bit(BTN_STYLUS, hi->input->keybit);
400 }
401
402 static int mt_touch_input_mapping(struct hid_device *hdev, struct hid_input *hi,
403 struct hid_field *field, struct hid_usage *usage,
404 unsigned long **bit, int *max)
405 {
406 struct mt_device *td = hid_get_drvdata(hdev);
407 struct mt_class *cls = &td->mtclass;
408 int code;
409 struct hid_usage *prev_usage = NULL;
410
411 if (field->application == HID_DG_TOUCHSCREEN)
412 td->mt_flags |= INPUT_MT_DIRECT;
413
414 /*
415 * Model touchscreens providing buttons as touchpads.
416 */
417 if (field->application == HID_DG_TOUCHPAD ||
418 (usage->hid & HID_USAGE_PAGE) == HID_UP_BUTTON)
419 td->mt_flags |= INPUT_MT_POINTER;
420
421 if (usage->usage_index)
422 prev_usage = &field->usage[usage->usage_index - 1];
423
424 switch (usage->hid & HID_USAGE_PAGE) {
425
426 case HID_UP_GENDESK:
427 switch (usage->hid) {
428 case HID_GD_X:
429 if (prev_usage && (prev_usage->hid == usage->hid)) {
430 hid_map_usage(hi, usage, bit, max,
431 EV_ABS, ABS_MT_TOOL_X);
432 set_abs(hi->input, ABS_MT_TOOL_X, field,
433 cls->sn_move);
434 } else {
435 hid_map_usage(hi, usage, bit, max,
436 EV_ABS, ABS_MT_POSITION_X);
437 set_abs(hi->input, ABS_MT_POSITION_X, field,
438 cls->sn_move);
439 }
440
441 mt_store_field(usage, td, hi);
442 return 1;
443 case HID_GD_Y:
444 if (prev_usage && (prev_usage->hid == usage->hid)) {
445 hid_map_usage(hi, usage, bit, max,
446 EV_ABS, ABS_MT_TOOL_Y);
447 set_abs(hi->input, ABS_MT_TOOL_Y, field,
448 cls->sn_move);
449 } else {
450 hid_map_usage(hi, usage, bit, max,
451 EV_ABS, ABS_MT_POSITION_Y);
452 set_abs(hi->input, ABS_MT_POSITION_Y, field,
453 cls->sn_move);
454 }
455
456 mt_store_field(usage, td, hi);
457 return 1;
458 }
459 return 0;
460
461 case HID_UP_DIGITIZER:
462 switch (usage->hid) {
463 case HID_DG_INRANGE:
464 if (cls->quirks & MT_QUIRK_HOVERING) {
465 hid_map_usage(hi, usage, bit, max,
466 EV_ABS, ABS_MT_DISTANCE);
467 input_set_abs_params(hi->input,
468 ABS_MT_DISTANCE, 0, 1, 0, 0);
469 }
470 mt_store_field(usage, td, hi);
471 return 1;
472 case HID_DG_CONFIDENCE:
473 mt_store_field(usage, td, hi);
474 return 1;
475 case HID_DG_TIPSWITCH:
476 hid_map_usage(hi, usage, bit, max, EV_KEY, BTN_TOUCH);
477 input_set_capability(hi->input, EV_KEY, BTN_TOUCH);
478 mt_store_field(usage, td, hi);
479 return 1;
480 case HID_DG_CONTACTID:
481 mt_store_field(usage, td, hi);
482 td->touches_by_report++;
483 td->mt_report_id = field->report->id;
484 return 1;
485 case HID_DG_WIDTH:
486 hid_map_usage(hi, usage, bit, max,
487 EV_ABS, ABS_MT_TOUCH_MAJOR);
488 if (!(cls->quirks & MT_QUIRK_NO_AREA))
489 set_abs(hi->input, ABS_MT_TOUCH_MAJOR, field,
490 cls->sn_width);
491 mt_store_field(usage, td, hi);
492 return 1;
493 case HID_DG_HEIGHT:
494 hid_map_usage(hi, usage, bit, max,
495 EV_ABS, ABS_MT_TOUCH_MINOR);
496 if (!(cls->quirks & MT_QUIRK_NO_AREA)) {
497 set_abs(hi->input, ABS_MT_TOUCH_MINOR, field,
498 cls->sn_height);
499 input_set_abs_params(hi->input,
500 ABS_MT_ORIENTATION, 0, 1, 0, 0);
501 }
502 mt_store_field(usage, td, hi);
503 return 1;
504 case HID_DG_TIPPRESSURE:
505 hid_map_usage(hi, usage, bit, max,
506 EV_ABS, ABS_MT_PRESSURE);
507 set_abs(hi->input, ABS_MT_PRESSURE, field,
508 cls->sn_pressure);
509 mt_store_field(usage, td, hi);
510 return 1;
511 case HID_DG_CONTACTCOUNT:
512 /* Ignore if indexes are out of bounds. */
513 if (field->index >= field->report->maxfield ||
514 usage->usage_index >= field->report_count)
515 return 1;
516 td->cc_index = field->index;
517 td->cc_value_index = usage->usage_index;
518 return 1;
519 case HID_DG_CONTACTMAX:
520 /* we don't set td->last_slot_field as contactcount and
521 * contact max are global to the report */
522 return -1;
523 case HID_DG_TOUCH:
524 /* Legacy devices use TIPSWITCH and not TOUCH.
525 * Let's just ignore this field. */
526 return -1;
527 }
528 /* let hid-input decide for the others */
529 return 0;
530
531 case HID_UP_BUTTON:
532 code = BTN_MOUSE + ((usage->hid - 1) & HID_USAGE);
533 hid_map_usage(hi, usage, bit, max, EV_KEY, code);
534 input_set_capability(hi->input, EV_KEY, code);
535 return 1;
536
537 case 0xff000000:
538 /* we do not want to map these: no input-oriented meaning */
539 return -1;
540 }
541
542 return 0;
543 }
544
545 static int mt_touch_input_mapped(struct hid_device *hdev, struct hid_input *hi,
546 struct hid_field *field, struct hid_usage *usage,
547 unsigned long **bit, int *max)
548 {
549 if (usage->type == EV_KEY || usage->type == EV_ABS)
550 set_bit(usage->type, hi->input->evbit);
551
552 return -1;
553 }
554
555 static int mt_compute_slot(struct mt_device *td, struct input_dev *input)
556 {
557 __s32 quirks = td->mtclass.quirks;
558
559 if (quirks & MT_QUIRK_SLOT_IS_CONTACTID)
560 return td->curdata.contactid;
561
562 if (quirks & MT_QUIRK_CYPRESS)
563 return cypress_compute_slot(td);
564
565 if (quirks & MT_QUIRK_SLOT_IS_CONTACTNUMBER)
566 return td->num_received;
567
568 if (quirks & MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE)
569 return td->curdata.contactid - 1;
570
571 return input_mt_get_slot_by_key(input, td->curdata.contactid);
572 }
573
574 /*
575 * this function is called when a whole contact has been processed,
576 * so that it can assign it to a slot and store the data there
577 */
578 static void mt_complete_slot(struct mt_device *td, struct input_dev *input)
579 {
580 if ((td->mtclass.quirks & MT_QUIRK_CONTACT_CNT_ACCURATE) &&
581 td->num_received >= td->num_expected)
582 return;
583
584 if (td->curvalid || (td->mtclass.quirks & MT_QUIRK_ALWAYS_VALID)) {
585 int slotnum = mt_compute_slot(td, input);
586 struct mt_slot *s = &td->curdata;
587 struct input_mt *mt = input->mt;
588
589 if (slotnum < 0 || slotnum >= td->maxcontacts)
590 return;
591
592 if ((td->mtclass.quirks & MT_QUIRK_IGNORE_DUPLICATES) && mt) {
593 struct input_mt_slot *slot = &mt->slots[slotnum];
594 if (input_mt_is_active(slot) &&
595 input_mt_is_used(mt, slot))
596 return;
597 }
598
599 input_mt_slot(input, slotnum);
600 input_mt_report_slot_state(input, MT_TOOL_FINGER,
601 s->touch_state || s->inrange_state);
602 if (s->touch_state || s->inrange_state) {
603 /* this finger is in proximity of the sensor */
604 int wide = (s->w > s->h);
605 /* divided by two to match visual scale of touch */
606 int major = max(s->w, s->h) >> 1;
607 int minor = min(s->w, s->h) >> 1;
608
609 input_event(input, EV_ABS, ABS_MT_POSITION_X, s->x);
610 input_event(input, EV_ABS, ABS_MT_POSITION_Y, s->y);
611 input_event(input, EV_ABS, ABS_MT_TOOL_X, s->cx);
612 input_event(input, EV_ABS, ABS_MT_TOOL_Y, s->cy);
613 input_event(input, EV_ABS, ABS_MT_DISTANCE,
614 !s->touch_state);
615 input_event(input, EV_ABS, ABS_MT_ORIENTATION, wide);
616 input_event(input, EV_ABS, ABS_MT_PRESSURE, s->p);
617 input_event(input, EV_ABS, ABS_MT_TOUCH_MAJOR, major);
618 input_event(input, EV_ABS, ABS_MT_TOUCH_MINOR, minor);
619 }
620 }
621
622 td->num_received++;
623 }
624
625 /*
626 * this function is called when a whole packet has been received and processed,
627 * so that it can decide what to send to the input layer.
628 */
629 static void mt_sync_frame(struct mt_device *td, struct input_dev *input)
630 {
631 input_mt_sync_frame(input);
632 input_sync(input);
633 td->num_received = 0;
634 }
635
636 static int mt_touch_event(struct hid_device *hid, struct hid_field *field,
637 struct hid_usage *usage, __s32 value)
638 {
639 /* we will handle the hidinput part later, now remains hiddev */
640 if (hid->claimed & HID_CLAIMED_HIDDEV && hid->hiddev_hid_event)
641 hid->hiddev_hid_event(hid, field, usage, value);
642
643 return 1;
644 }
645
646 static void mt_process_mt_event(struct hid_device *hid, struct hid_field *field,
647 struct hid_usage *usage, __s32 value)
648 {
649 struct mt_device *td = hid_get_drvdata(hid);
650 __s32 quirks = td->mtclass.quirks;
651 struct input_dev *input = field->hidinput->input;
652
653 if (hid->claimed & HID_CLAIMED_INPUT) {
654 switch (usage->hid) {
655 case HID_DG_INRANGE:
656 if (quirks & MT_QUIRK_VALID_IS_INRANGE)
657 td->curvalid = value;
658 if (quirks & MT_QUIRK_HOVERING)
659 td->curdata.inrange_state = value;
660 break;
661 case HID_DG_TIPSWITCH:
662 if (quirks & MT_QUIRK_NOT_SEEN_MEANS_UP)
663 td->curvalid = value;
664 td->curdata.touch_state = value;
665 break;
666 case HID_DG_CONFIDENCE:
667 if (quirks & MT_QUIRK_VALID_IS_CONFIDENCE)
668 td->curvalid = value;
669 break;
670 case HID_DG_CONTACTID:
671 td->curdata.contactid = value;
672 break;
673 case HID_DG_TIPPRESSURE:
674 td->curdata.p = value;
675 break;
676 case HID_GD_X:
677 if (usage->code == ABS_MT_TOOL_X)
678 td->curdata.cx = value;
679 else
680 td->curdata.x = value;
681 break;
682 case HID_GD_Y:
683 if (usage->code == ABS_MT_TOOL_Y)
684 td->curdata.cy = value;
685 else
686 td->curdata.y = value;
687 break;
688 case HID_DG_WIDTH:
689 td->curdata.w = value;
690 break;
691 case HID_DG_HEIGHT:
692 td->curdata.h = value;
693 break;
694 case HID_DG_CONTACTCOUNT:
695 break;
696 case HID_DG_TOUCH:
697 /* do nothing */
698 break;
699
700 default:
701 if (usage->type)
702 input_event(input, usage->type, usage->code,
703 value);
704 return;
705 }
706
707 if (usage->usage_index + 1 == field->report_count) {
708 /* we only take into account the last report. */
709 if (usage->hid == td->last_slot_field)
710 mt_complete_slot(td, field->hidinput->input);
711 }
712
713 }
714 }
715
716 static void mt_touch_report(struct hid_device *hid, struct hid_report *report)
717 {
718 struct mt_device *td = hid_get_drvdata(hid);
719 struct hid_field *field;
720 unsigned count;
721 int r, n;
722
723 /*
724 * Includes multi-packet support where subsequent
725 * packets are sent with zero contactcount.
726 */
727 if (td->cc_index >= 0) {
728 struct hid_field *field = report->field[td->cc_index];
729 int value = field->value[td->cc_value_index];
730 if (value)
731 td->num_expected = value;
732 }
733
734 for (r = 0; r < report->maxfield; r++) {
735 field = report->field[r];
736 count = field->report_count;
737
738 if (!(HID_MAIN_ITEM_VARIABLE & field->flags))
739 continue;
740
741 for (n = 0; n < count; n++)
742 mt_process_mt_event(hid, field, &field->usage[n],
743 field->value[n]);
744 }
745
746 if (td->num_received >= td->num_expected)
747 mt_sync_frame(td, report->field[0]->hidinput->input);
748 }
749
750 static void mt_touch_input_configured(struct hid_device *hdev,
751 struct hid_input *hi)
752 {
753 struct mt_device *td = hid_get_drvdata(hdev);
754 struct mt_class *cls = &td->mtclass;
755 struct input_dev *input = hi->input;
756
757 if (!td->maxcontacts)
758 td->maxcontacts = MT_DEFAULT_MAXCONTACT;
759
760 mt_post_parse(td);
761 if (td->serial_maybe)
762 mt_post_parse_default_settings(td);
763
764 if (cls->is_indirect)
765 td->mt_flags |= INPUT_MT_POINTER;
766
767 if (cls->quirks & MT_QUIRK_NOT_SEEN_MEANS_UP)
768 td->mt_flags |= INPUT_MT_DROP_UNUSED;
769
770 input_mt_init_slots(input, td->maxcontacts, td->mt_flags);
771
772 td->mt_flags = 0;
773 }
774
775 static int mt_input_mapping(struct hid_device *hdev, struct hid_input *hi,
776 struct hid_field *field, struct hid_usage *usage,
777 unsigned long **bit, int *max)
778 {
779 /* Only map fields from TouchScreen or TouchPad collections.
780 * We need to ignore fields that belong to other collections
781 * such as Mouse that might have the same GenericDesktop usages. */
782 if (field->application != HID_DG_TOUCHSCREEN &&
783 field->application != HID_DG_PEN &&
784 field->application != HID_DG_TOUCHPAD)
785 return -1;
786
787 if (field->physical == HID_DG_STYLUS)
788 return mt_pen_input_mapping(hdev, hi, field, usage, bit, max);
789
790 return mt_touch_input_mapping(hdev, hi, field, usage, bit, max);
791 }
792
793 static int mt_input_mapped(struct hid_device *hdev, struct hid_input *hi,
794 struct hid_field *field, struct hid_usage *usage,
795 unsigned long **bit, int *max)
796 {
797 if (field->physical == HID_DG_STYLUS)
798 return mt_pen_input_mapped(hdev, hi, field, usage, bit, max);
799
800 return mt_touch_input_mapped(hdev, hi, field, usage, bit, max);
801 }
802
803 static int mt_event(struct hid_device *hid, struct hid_field *field,
804 struct hid_usage *usage, __s32 value)
805 {
806 struct mt_device *td = hid_get_drvdata(hid);
807
808 if (field->report->id == td->mt_report_id)
809 return mt_touch_event(hid, field, usage, value);
810
811 if (field->report->id == td->pen_report_id)
812 return mt_pen_event(hid, field, usage, value);
813
814 /* ignore other reports */
815 return 1;
816 }
817
818 static void mt_report(struct hid_device *hid, struct hid_report *report)
819 {
820 struct mt_device *td = hid_get_drvdata(hid);
821
822 if (!(hid->claimed & HID_CLAIMED_INPUT))
823 return;
824
825 if (report->id == td->mt_report_id)
826 mt_touch_report(hid, report);
827
828 if (report->id == td->pen_report_id)
829 mt_pen_report(hid, report);
830 }
831
832 static void mt_set_input_mode(struct hid_device *hdev)
833 {
834 struct mt_device *td = hid_get_drvdata(hdev);
835 struct hid_report *r;
836 struct hid_report_enum *re;
837
838 if (td->inputmode < 0)
839 return;
840
841 re = &(hdev->report_enum[HID_FEATURE_REPORT]);
842 r = re->report_id_hash[td->inputmode];
843 if (r) {
844 r->field[0]->value[td->inputmode_index] = 0x02;
845 hid_hw_request(hdev, r, HID_REQ_SET_REPORT);
846 }
847 }
848
849 static void mt_set_maxcontacts(struct hid_device *hdev)
850 {
851 struct mt_device *td = hid_get_drvdata(hdev);
852 struct hid_report *r;
853 struct hid_report_enum *re;
854 int fieldmax, max;
855
856 if (td->maxcontact_report_id < 0)
857 return;
858
859 if (!td->mtclass.maxcontacts)
860 return;
861
862 re = &hdev->report_enum[HID_FEATURE_REPORT];
863 r = re->report_id_hash[td->maxcontact_report_id];
864 if (r) {
865 max = td->mtclass.maxcontacts;
866 fieldmax = r->field[0]->logical_maximum;
867 max = min(fieldmax, max);
868 if (r->field[0]->value[0] != max) {
869 r->field[0]->value[0] = max;
870 hid_hw_request(hdev, r, HID_REQ_SET_REPORT);
871 }
872 }
873 }
874
875 static void mt_post_parse_default_settings(struct mt_device *td)
876 {
877 __s32 quirks = td->mtclass.quirks;
878
879 /* unknown serial device needs special quirks */
880 if (td->touches_by_report == 1) {
881 quirks |= MT_QUIRK_ALWAYS_VALID;
882 quirks &= ~MT_QUIRK_NOT_SEEN_MEANS_UP;
883 quirks &= ~MT_QUIRK_VALID_IS_INRANGE;
884 quirks &= ~MT_QUIRK_VALID_IS_CONFIDENCE;
885 quirks &= ~MT_QUIRK_CONTACT_CNT_ACCURATE;
886 }
887
888 td->mtclass.quirks = quirks;
889 }
890
891 static void mt_post_parse(struct mt_device *td)
892 {
893 struct mt_fields *f = td->fields;
894 struct mt_class *cls = &td->mtclass;
895
896 if (td->touches_by_report > 0) {
897 int field_count_per_touch = f->length / td->touches_by_report;
898 td->last_slot_field = f->usages[field_count_per_touch - 1];
899 }
900
901 if (td->cc_index < 0)
902 cls->quirks &= ~MT_QUIRK_CONTACT_CNT_ACCURATE;
903 }
904
905 static void mt_input_configured(struct hid_device *hdev, struct hid_input *hi)
906 {
907 struct mt_device *td = hid_get_drvdata(hdev);
908 char *name;
909 const char *suffix = NULL;
910
911 if (hi->report->id == td->mt_report_id)
912 mt_touch_input_configured(hdev, hi);
913
914 if (hi->report->field[0]->physical == HID_DG_STYLUS) {
915 suffix = "Pen";
916 mt_pen_input_configured(hdev, hi);
917 }
918
919 if (suffix) {
920 name = devm_kzalloc(&hi->input->dev,
921 strlen(hdev->name) + strlen(suffix) + 2,
922 GFP_KERNEL);
923 if (name) {
924 sprintf(name, "%s %s", hdev->name, suffix);
925 hi->input->name = name;
926 }
927 }
928 }
929
930 static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id)
931 {
932 int ret, i;
933 struct mt_device *td;
934 struct mt_class *mtclass = mt_classes; /* MT_CLS_DEFAULT */
935
936 for (i = 0; mt_classes[i].name ; i++) {
937 if (id->driver_data == mt_classes[i].name) {
938 mtclass = &(mt_classes[i]);
939 break;
940 }
941 }
942
943 /* This allows the driver to correctly support devices
944 * that emit events over several HID messages.
945 */
946 hdev->quirks |= HID_QUIRK_NO_INPUT_SYNC;
947
948 /*
949 * This allows the driver to handle different input sensors
950 * that emits events through different reports on the same HID
951 * device.
952 */
953 hdev->quirks |= HID_QUIRK_MULTI_INPUT;
954 hdev->quirks |= HID_QUIRK_NO_EMPTY_INPUT;
955
956 /*
957 * Handle special quirks for Windows 8 certified devices.
958 */
959 if (id->group == HID_GROUP_MULTITOUCH_WIN_8)
960 /*
961 * Some multitouch screens do not like to be polled for input
962 * reports. Fortunately, the Win8 spec says that all touches
963 * should be sent during each report, making the initialization
964 * of input reports unnecessary.
965 */
966 hdev->quirks |= HID_QUIRK_NO_INIT_INPUT_REPORTS;
967
968 td = devm_kzalloc(&hdev->dev, sizeof(struct mt_device), GFP_KERNEL);
969 if (!td) {
970 dev_err(&hdev->dev, "cannot allocate multitouch data\n");
971 return -ENOMEM;
972 }
973 td->mtclass = *mtclass;
974 td->inputmode = -1;
975 td->maxcontact_report_id = -1;
976 td->cc_index = -1;
977 td->mt_report_id = -1;
978 td->pen_report_id = -1;
979 hid_set_drvdata(hdev, td);
980
981 td->fields = devm_kzalloc(&hdev->dev, sizeof(struct mt_fields),
982 GFP_KERNEL);
983 if (!td->fields) {
984 dev_err(&hdev->dev, "cannot allocate multitouch fields data\n");
985 return -ENOMEM;
986 }
987
988 if (id->vendor == HID_ANY_ID && id->product == HID_ANY_ID)
989 td->serial_maybe = true;
990
991 ret = hid_parse(hdev);
992 if (ret != 0)
993 return ret;
994
995 ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
996 if (ret)
997 return ret;
998
999 ret = sysfs_create_group(&hdev->dev.kobj, &mt_attribute_group);
1000
1001 mt_set_maxcontacts(hdev);
1002 mt_set_input_mode(hdev);
1003
1004 /* release .fields memory as it is not used anymore */
1005 devm_kfree(&hdev->dev, td->fields);
1006 td->fields = NULL;
1007
1008 return 0;
1009 }
1010
1011 #ifdef CONFIG_PM
1012 static int mt_reset_resume(struct hid_device *hdev)
1013 {
1014 mt_set_maxcontacts(hdev);
1015 mt_set_input_mode(hdev);
1016 return 0;
1017 }
1018
1019 static int mt_resume(struct hid_device *hdev)
1020 {
1021 /* Some Elan legacy devices require SET_IDLE to be set on resume.
1022 * It should be safe to send it to other devices too.
1023 * Tested on 3M, Stantum, Cypress, Zytronic, eGalax, and Elan panels. */
1024
1025 hid_hw_idle(hdev, 0, 0, HID_REQ_SET_IDLE);
1026
1027 return 0;
1028 }
1029 #endif
1030
1031 static void mt_remove(struct hid_device *hdev)
1032 {
1033 sysfs_remove_group(&hdev->dev.kobj, &mt_attribute_group);
1034 hid_hw_stop(hdev);
1035 }
1036
1037 static const struct hid_device_id mt_devices[] = {
1038
1039 /* 3M panels */
1040 { .driver_data = MT_CLS_3M,
1041 MT_USB_DEVICE(USB_VENDOR_ID_3M,
1042 USB_DEVICE_ID_3M1968) },
1043 { .driver_data = MT_CLS_3M,
1044 MT_USB_DEVICE(USB_VENDOR_ID_3M,
1045 USB_DEVICE_ID_3M2256) },
1046 { .driver_data = MT_CLS_3M,
1047 MT_USB_DEVICE(USB_VENDOR_ID_3M,
1048 USB_DEVICE_ID_3M3266) },
1049
1050 /* ActionStar panels */
1051 { .driver_data = MT_CLS_NSMU,
1052 MT_USB_DEVICE(USB_VENDOR_ID_ACTIONSTAR,
1053 USB_DEVICE_ID_ACTIONSTAR_1011) },
1054
1055 /* Atmel panels */
1056 { .driver_data = MT_CLS_SERIAL,
1057 MT_USB_DEVICE(USB_VENDOR_ID_ATMEL,
1058 USB_DEVICE_ID_ATMEL_MULTITOUCH) },
1059 { .driver_data = MT_CLS_SERIAL,
1060 MT_USB_DEVICE(USB_VENDOR_ID_ATMEL,
1061 USB_DEVICE_ID_ATMEL_MXT_DIGITIZER) },
1062
1063 /* Baanto multitouch devices */
1064 { .driver_data = MT_CLS_NSMU,
1065 MT_USB_DEVICE(USB_VENDOR_ID_BAANTO,
1066 USB_DEVICE_ID_BAANTO_MT_190W2) },
1067 /* Cando panels */
1068 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
1069 MT_USB_DEVICE(USB_VENDOR_ID_CANDO,
1070 USB_DEVICE_ID_CANDO_MULTI_TOUCH) },
1071 { .driver_data = MT_CLS_DUAL_CONTACT_NUMBER,
1072 MT_USB_DEVICE(USB_VENDOR_ID_CANDO,
1073 USB_DEVICE_ID_CANDO_MULTI_TOUCH_10_1) },
1074 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
1075 MT_USB_DEVICE(USB_VENDOR_ID_CANDO,
1076 USB_DEVICE_ID_CANDO_MULTI_TOUCH_11_6) },
1077 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
1078 MT_USB_DEVICE(USB_VENDOR_ID_CANDO,
1079 USB_DEVICE_ID_CANDO_MULTI_TOUCH_15_6) },
1080
1081 /* Chunghwa Telecom touch panels */
1082 { .driver_data = MT_CLS_NSMU,
1083 MT_USB_DEVICE(USB_VENDOR_ID_CHUNGHWAT,
1084 USB_DEVICE_ID_CHUNGHWAT_MULTITOUCH) },
1085
1086 /* CVTouch panels */
1087 { .driver_data = MT_CLS_NSMU,
1088 MT_USB_DEVICE(USB_VENDOR_ID_CVTOUCH,
1089 USB_DEVICE_ID_CVTOUCH_SCREEN) },
1090
1091 /* Cypress panel */
1092 { .driver_data = MT_CLS_CYPRESS,
1093 HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS,
1094 USB_DEVICE_ID_CYPRESS_TRUETOUCH) },
1095
1096 /* Data Modul easyMaxTouch */
1097 { .driver_data = MT_CLS_DEFAULT,
1098 MT_USB_DEVICE(USB_VENDOR_ID_DATA_MODUL,
1099 USB_VENDOR_ID_DATA_MODUL_EASYMAXTOUCH) },
1100
1101 /* eGalax devices (resistive) */
1102 { .driver_data = MT_CLS_EGALAX,
1103 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1104 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_480D) },
1105 { .driver_data = MT_CLS_EGALAX,
1106 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1107 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_480E) },
1108
1109 /* eGalax devices (capacitive) */
1110 { .driver_data = MT_CLS_EGALAX_SERIAL,
1111 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1112 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7207) },
1113 { .driver_data = MT_CLS_EGALAX,
1114 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1115 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_720C) },
1116 { .driver_data = MT_CLS_EGALAX_SERIAL,
1117 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1118 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7224) },
1119 { .driver_data = MT_CLS_EGALAX_SERIAL,
1120 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1121 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_722A) },
1122 { .driver_data = MT_CLS_EGALAX_SERIAL,
1123 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1124 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_725E) },
1125 { .driver_data = MT_CLS_EGALAX_SERIAL,
1126 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1127 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7262) },
1128 { .driver_data = MT_CLS_EGALAX,
1129 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1130 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_726B) },
1131 { .driver_data = MT_CLS_EGALAX,
1132 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1133 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72A1) },
1134 { .driver_data = MT_CLS_EGALAX_SERIAL,
1135 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1136 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72AA) },
1137 { .driver_data = MT_CLS_EGALAX,
1138 HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
1139 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72C4) },
1140 { .driver_data = MT_CLS_EGALAX,
1141 HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
1142 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72D0) },
1143 { .driver_data = MT_CLS_EGALAX,
1144 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1145 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72FA) },
1146 { .driver_data = MT_CLS_EGALAX,
1147 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1148 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7302) },
1149 { .driver_data = MT_CLS_EGALAX_SERIAL,
1150 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1151 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7349) },
1152 { .driver_data = MT_CLS_EGALAX_SERIAL,
1153 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1154 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_73F7) },
1155 { .driver_data = MT_CLS_EGALAX_SERIAL,
1156 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1157 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_A001) },
1158
1159 /* Elo TouchSystems IntelliTouch Plus panel */
1160 { .driver_data = MT_CLS_DUAL_CONTACT_ID,
1161 MT_USB_DEVICE(USB_VENDOR_ID_ELO,
1162 USB_DEVICE_ID_ELO_TS2515) },
1163
1164 /* Flatfrog Panels */
1165 { .driver_data = MT_CLS_FLATFROG,
1166 MT_USB_DEVICE(USB_VENDOR_ID_FLATFROG,
1167 USB_DEVICE_ID_MULTITOUCH_3200) },
1168
1169 /* FocalTech Panels */
1170 { .driver_data = MT_CLS_SERIAL,
1171 MT_USB_DEVICE(USB_VENDOR_ID_CYGNAL,
1172 USB_DEVICE_ID_FOCALTECH_FTXXXX_MULTITOUCH) },
1173
1174 /* GeneralTouch panel */
1175 { .driver_data = MT_CLS_GENERALTOUCH_TWOFINGERS,
1176 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
1177 USB_DEVICE_ID_GENERAL_TOUCH_WIN7_TWOFINGERS) },
1178 { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
1179 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
1180 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PWT_TENFINGERS) },
1181 { .driver_data = MT_CLS_GENERALTOUCH_TWOFINGERS,
1182 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
1183 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_0101) },
1184 { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
1185 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
1186 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_0102) },
1187 { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
1188 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
1189 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_0106) },
1190 { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
1191 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
1192 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_010A) },
1193 { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
1194 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
1195 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_E100) },
1196
1197 /* Gametel game controller */
1198 { .driver_data = MT_CLS_NSMU,
1199 MT_BT_DEVICE(USB_VENDOR_ID_FRUCTEL,
1200 USB_DEVICE_ID_GAMETEL_MT_MODE) },
1201
1202 /* GoodTouch panels */
1203 { .driver_data = MT_CLS_NSMU,
1204 MT_USB_DEVICE(USB_VENDOR_ID_GOODTOUCH,
1205 USB_DEVICE_ID_GOODTOUCH_000f) },
1206
1207 /* Hanvon panels */
1208 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID,
1209 MT_USB_DEVICE(USB_VENDOR_ID_HANVON_ALT,
1210 USB_DEVICE_ID_HANVON_ALT_MULTITOUCH) },
1211
1212 /* Ideacom panel */
1213 { .driver_data = MT_CLS_SERIAL,
1214 MT_USB_DEVICE(USB_VENDOR_ID_IDEACOM,
1215 USB_DEVICE_ID_IDEACOM_IDC6650) },
1216 { .driver_data = MT_CLS_SERIAL,
1217 MT_USB_DEVICE(USB_VENDOR_ID_IDEACOM,
1218 USB_DEVICE_ID_IDEACOM_IDC6651) },
1219
1220 /* Ilitek dual touch panel */
1221 { .driver_data = MT_CLS_NSMU,
1222 MT_USB_DEVICE(USB_VENDOR_ID_ILITEK,
1223 USB_DEVICE_ID_ILITEK_MULTITOUCH) },
1224
1225 /* IRTOUCH panels */
1226 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID,
1227 MT_USB_DEVICE(USB_VENDOR_ID_IRTOUCHSYSTEMS,
1228 USB_DEVICE_ID_IRTOUCH_INFRARED_USB) },
1229
1230 /* LG Display panels */
1231 { .driver_data = MT_CLS_DEFAULT,
1232 MT_USB_DEVICE(USB_VENDOR_ID_LG,
1233 USB_DEVICE_ID_LG_MULTITOUCH) },
1234
1235 /* Lumio panels */
1236 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
1237 MT_USB_DEVICE(USB_VENDOR_ID_LUMIO,
1238 USB_DEVICE_ID_CRYSTALTOUCH) },
1239 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
1240 MT_USB_DEVICE(USB_VENDOR_ID_LUMIO,
1241 USB_DEVICE_ID_CRYSTALTOUCH_DUAL) },
1242
1243 /* MosArt panels */
1244 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
1245 MT_USB_DEVICE(USB_VENDOR_ID_ASUS,
1246 USB_DEVICE_ID_ASUS_T91MT)},
1247 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
1248 MT_USB_DEVICE(USB_VENDOR_ID_ASUS,
1249 USB_DEVICE_ID_ASUSTEK_MULTITOUCH_YFO) },
1250 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
1251 MT_USB_DEVICE(USB_VENDOR_ID_TURBOX,
1252 USB_DEVICE_ID_TURBOX_TOUCHSCREEN_MOSART) },
1253
1254 /* Nexio panels */
1255 { .driver_data = MT_CLS_DEFAULT,
1256 MT_USB_DEVICE(USB_VENDOR_ID_NEXIO,
1257 USB_DEVICE_ID_NEXIO_MULTITOUCH_420)},
1258
1259 /* Panasonic panels */
1260 { .driver_data = MT_CLS_PANASONIC,
1261 MT_USB_DEVICE(USB_VENDOR_ID_PANASONIC,
1262 USB_DEVICE_ID_PANABOARD_UBT780) },
1263 { .driver_data = MT_CLS_PANASONIC,
1264 MT_USB_DEVICE(USB_VENDOR_ID_PANASONIC,
1265 USB_DEVICE_ID_PANABOARD_UBT880) },
1266
1267 /* Novatek Panel */
1268 { .driver_data = MT_CLS_NSMU,
1269 MT_USB_DEVICE(USB_VENDOR_ID_NOVATEK,
1270 USB_DEVICE_ID_NOVATEK_PCT) },
1271
1272 /* PenMount panels */
1273 { .driver_data = MT_CLS_CONFIDENCE,
1274 MT_USB_DEVICE(USB_VENDOR_ID_PENMOUNT,
1275 USB_DEVICE_ID_PENMOUNT_PCI) },
1276
1277 /* PixArt optical touch screen */
1278 { .driver_data = MT_CLS_INRANGE_CONTACTNUMBER,
1279 MT_USB_DEVICE(USB_VENDOR_ID_PIXART,
1280 USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN) },
1281 { .driver_data = MT_CLS_INRANGE_CONTACTNUMBER,
1282 MT_USB_DEVICE(USB_VENDOR_ID_PIXART,
1283 USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN1) },
1284 { .driver_data = MT_CLS_INRANGE_CONTACTNUMBER,
1285 MT_USB_DEVICE(USB_VENDOR_ID_PIXART,
1286 USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN2) },
1287
1288 /* PixCir-based panels */
1289 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID,
1290 MT_USB_DEVICE(USB_VENDOR_ID_HANVON,
1291 USB_DEVICE_ID_HANVON_MULTITOUCH) },
1292 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID,
1293 MT_USB_DEVICE(USB_VENDOR_ID_CANDO,
1294 USB_DEVICE_ID_CANDO_PIXCIR_MULTI_TOUCH) },
1295
1296 /* Quanta-based panels */
1297 { .driver_data = MT_CLS_CONFIDENCE_CONTACT_ID,
1298 MT_USB_DEVICE(USB_VENDOR_ID_QUANTA,
1299 USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH) },
1300 { .driver_data = MT_CLS_CONFIDENCE_CONTACT_ID,
1301 MT_USB_DEVICE(USB_VENDOR_ID_QUANTA,
1302 USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3001) },
1303 { .driver_data = MT_CLS_CONFIDENCE_CONTACT_ID,
1304 MT_USB_DEVICE(USB_VENDOR_ID_QUANTA,
1305 USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3008) },
1306
1307 /* SiS panels */
1308 { .driver_data = MT_CLS_DEFAULT,
1309 HID_USB_DEVICE(USB_VENDOR_ID_SIS_TOUCH,
1310 USB_DEVICE_ID_SIS9200_TOUCH) },
1311 { .driver_data = MT_CLS_DEFAULT,
1312 HID_USB_DEVICE(USB_VENDOR_ID_SIS_TOUCH,
1313 USB_DEVICE_ID_SIS817_TOUCH) },
1314 { .driver_data = MT_CLS_DEFAULT,
1315 HID_USB_DEVICE(USB_VENDOR_ID_SIS_TOUCH,
1316 USB_DEVICE_ID_SIS1030_TOUCH) },
1317
1318 /* Stantum panels */
1319 { .driver_data = MT_CLS_CONFIDENCE,
1320 MT_USB_DEVICE(USB_VENDOR_ID_STANTUM,
1321 USB_DEVICE_ID_MTP)},
1322 { .driver_data = MT_CLS_CONFIDENCE,
1323 MT_USB_DEVICE(USB_VENDOR_ID_STANTUM_STM,
1324 USB_DEVICE_ID_MTP_STM)},
1325 { .driver_data = MT_CLS_DEFAULT,
1326 MT_USB_DEVICE(USB_VENDOR_ID_STANTUM_SITRONIX,
1327 USB_DEVICE_ID_MTP_SITRONIX)},
1328
1329 /* TopSeed panels */
1330 { .driver_data = MT_CLS_TOPSEED,
1331 MT_USB_DEVICE(USB_VENDOR_ID_TOPSEED2,
1332 USB_DEVICE_ID_TOPSEED2_PERIPAD_701) },
1333
1334 /* Touch International panels */
1335 { .driver_data = MT_CLS_NSMU,
1336 MT_USB_DEVICE(USB_VENDOR_ID_TOUCH_INTL,
1337 USB_DEVICE_ID_TOUCH_INTL_MULTI_TOUCH) },
1338
1339 /* Unitec panels */
1340 { .driver_data = MT_CLS_NSMU,
1341 MT_USB_DEVICE(USB_VENDOR_ID_UNITEC,
1342 USB_DEVICE_ID_UNITEC_USB_TOUCH_0709) },
1343 { .driver_data = MT_CLS_NSMU,
1344 MT_USB_DEVICE(USB_VENDOR_ID_UNITEC,
1345 USB_DEVICE_ID_UNITEC_USB_TOUCH_0A19) },
1346
1347 /* Wistron panels */
1348 { .driver_data = MT_CLS_NSMU,
1349 MT_USB_DEVICE(USB_VENDOR_ID_WISTRON,
1350 USB_DEVICE_ID_WISTRON_OPTICAL_TOUCH) },
1351
1352 /* XAT */
1353 { .driver_data = MT_CLS_NSMU,
1354 MT_USB_DEVICE(USB_VENDOR_ID_XAT,
1355 USB_DEVICE_ID_XAT_CSR) },
1356
1357 /* Xiroku */
1358 { .driver_data = MT_CLS_NSMU,
1359 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1360 USB_DEVICE_ID_XIROKU_SPX) },
1361 { .driver_data = MT_CLS_NSMU,
1362 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1363 USB_DEVICE_ID_XIROKU_MPX) },
1364 { .driver_data = MT_CLS_NSMU,
1365 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1366 USB_DEVICE_ID_XIROKU_CSR) },
1367 { .driver_data = MT_CLS_NSMU,
1368 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1369 USB_DEVICE_ID_XIROKU_SPX1) },
1370 { .driver_data = MT_CLS_NSMU,
1371 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1372 USB_DEVICE_ID_XIROKU_MPX1) },
1373 { .driver_data = MT_CLS_NSMU,
1374 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1375 USB_DEVICE_ID_XIROKU_CSR1) },
1376 { .driver_data = MT_CLS_NSMU,
1377 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1378 USB_DEVICE_ID_XIROKU_SPX2) },
1379 { .driver_data = MT_CLS_NSMU,
1380 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1381 USB_DEVICE_ID_XIROKU_MPX2) },
1382 { .driver_data = MT_CLS_NSMU,
1383 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1384 USB_DEVICE_ID_XIROKU_CSR2) },
1385
1386 /* Zytronic panels */
1387 { .driver_data = MT_CLS_SERIAL,
1388 MT_USB_DEVICE(USB_VENDOR_ID_ZYTRONIC,
1389 USB_DEVICE_ID_ZYTRONIC_ZXY100) },
1390
1391 /* Generic MT device */
1392 { HID_DEVICE(HID_BUS_ANY, HID_GROUP_MULTITOUCH, HID_ANY_ID, HID_ANY_ID) },
1393
1394 /* Generic Win 8 certified MT device */
1395 { .driver_data = MT_CLS_WIN_8,
1396 HID_DEVICE(HID_BUS_ANY, HID_GROUP_MULTITOUCH_WIN_8,
1397 HID_ANY_ID, HID_ANY_ID) },
1398 { }
1399 };
1400 MODULE_DEVICE_TABLE(hid, mt_devices);
1401
1402 static const struct hid_usage_id mt_grabbed_usages[] = {
1403 { HID_ANY_ID, HID_ANY_ID, HID_ANY_ID },
1404 { HID_ANY_ID - 1, HID_ANY_ID - 1, HID_ANY_ID - 1}
1405 };
1406
1407 static struct hid_driver mt_driver = {
1408 .name = "hid-multitouch",
1409 .id_table = mt_devices,
1410 .probe = mt_probe,
1411 .remove = mt_remove,
1412 .input_mapping = mt_input_mapping,
1413 .input_mapped = mt_input_mapped,
1414 .input_configured = mt_input_configured,
1415 .feature_mapping = mt_feature_mapping,
1416 .usage_table = mt_grabbed_usages,
1417 .event = mt_event,
1418 .report = mt_report,
1419 #ifdef CONFIG_PM
1420 .reset_resume = mt_reset_resume,
1421 .resume = mt_resume,
1422 #endif
1423 };
1424 module_hid_driver(mt_driver);
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