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Merge branch 'for-3.10/hid-driver-transport-cleanups' into for-3.10/mt-hybrid-finger-pen
[thirdparty/kernel/linux.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
48
49 MODULE_AUTHOR("Stephane Chatty <chatty@enac.fr>");
50 MODULE_AUTHOR("Benjamin Tissoires <benjamin.tissoires@gmail.com>");
51 MODULE_DESCRIPTION("HID multitouch panels");
52 MODULE_LICENSE("GPL");
53
54 #include "hid-ids.h"
55
56 /* quirks to control the device */
57 #define MT_QUIRK_NOT_SEEN_MEANS_UP (1 << 0)
58 #define MT_QUIRK_SLOT_IS_CONTACTID (1 << 1)
59 #define MT_QUIRK_CYPRESS (1 << 2)
60 #define MT_QUIRK_SLOT_IS_CONTACTNUMBER (1 << 3)
61 #define MT_QUIRK_ALWAYS_VALID (1 << 4)
62 #define MT_QUIRK_VALID_IS_INRANGE (1 << 5)
63 #define MT_QUIRK_VALID_IS_CONFIDENCE (1 << 6)
64 #define MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE (1 << 8)
65 #define MT_QUIRK_NO_AREA (1 << 9)
66 #define MT_QUIRK_IGNORE_DUPLICATES (1 << 10)
67 #define MT_QUIRK_HOVERING (1 << 11)
68 #define MT_QUIRK_CONTACT_CNT_ACCURATE (1 << 12)
69
70 struct mt_slot {
71 __s32 x, y, cx, cy, p, w, h;
72 __s32 contactid; /* the device ContactID assigned to this slot */
73 bool touch_state; /* is the touch valid? */
74 bool inrange_state; /* is the finger in proximity of the sensor? */
75 };
76
77 struct mt_class {
78 __s32 name; /* MT_CLS */
79 __s32 quirks;
80 __s32 sn_move; /* Signal/noise ratio for move events */
81 __s32 sn_width; /* Signal/noise ratio for width events */
82 __s32 sn_height; /* Signal/noise ratio for height events */
83 __s32 sn_pressure; /* Signal/noise ratio for pressure events */
84 __u8 maxcontacts;
85 bool is_indirect; /* true for touchpads */
86 };
87
88 struct mt_fields {
89 unsigned usages[HID_MAX_FIELDS];
90 unsigned int length;
91 };
92
93 struct mt_device {
94 struct mt_slot curdata; /* placeholder of incoming data */
95 struct mt_class mtclass; /* our mt device class */
96 struct mt_fields *fields; /* temporary placeholder for storing the
97 multitouch fields */
98 int cc_index; /* contact count field index in the report */
99 int cc_value_index; /* contact count value index in the field */
100 unsigned last_slot_field; /* the last field of a slot */
101 unsigned mt_report_id; /* the report ID of the multitouch device */
102 __s8 inputmode; /* InputMode HID feature, -1 if non-existent */
103 __s8 inputmode_index; /* InputMode HID feature index in the report */
104 __s8 maxcontact_report_id; /* Maximum Contact Number HID feature,
105 -1 if non-existent */
106 __u8 num_received; /* how many contacts we received */
107 __u8 num_expected; /* expected last contact index */
108 __u8 maxcontacts;
109 __u8 touches_by_report; /* how many touches are present in one report:
110 * 1 means we should use a serial protocol
111 * > 1 means hybrid (multitouch) protocol */
112 bool serial_maybe; /* need to check for serial protocol */
113 bool curvalid; /* is the current contact valid? */
114 unsigned mt_flags; /* flags to pass to input-mt */
115 };
116
117 /* classes of device behavior */
118 #define MT_CLS_DEFAULT 0x0001
119
120 #define MT_CLS_SERIAL 0x0002
121 #define MT_CLS_CONFIDENCE 0x0003
122 #define MT_CLS_CONFIDENCE_CONTACT_ID 0x0004
123 #define MT_CLS_CONFIDENCE_MINUS_ONE 0x0005
124 #define MT_CLS_DUAL_INRANGE_CONTACTID 0x0006
125 #define MT_CLS_DUAL_INRANGE_CONTACTNUMBER 0x0007
126 #define MT_CLS_DUAL_NSMU_CONTACTID 0x0008
127 #define MT_CLS_INRANGE_CONTACTNUMBER 0x0009
128 #define MT_CLS_NSMU 0x000a
129 #define MT_CLS_DUAL_CONTACT_NUMBER 0x0010
130 #define MT_CLS_DUAL_CONTACT_ID 0x0011
131
132 /* vendor specific classes */
133 #define MT_CLS_3M 0x0101
134 #define MT_CLS_CYPRESS 0x0102
135 #define MT_CLS_EGALAX 0x0103
136 #define MT_CLS_EGALAX_SERIAL 0x0104
137 #define MT_CLS_TOPSEED 0x0105
138 #define MT_CLS_PANASONIC 0x0106
139 #define MT_CLS_FLATFROG 0x0107
140 #define MT_CLS_GENERALTOUCH_TWOFINGERS 0x0108
141 #define MT_CLS_GENERALTOUCH_PWT_TENFINGERS 0x0109
142
143 #define MT_DEFAULT_MAXCONTACT 10
144 #define MT_MAX_MAXCONTACT 250
145
146 #define MT_USB_DEVICE(v, p) HID_DEVICE(BUS_USB, HID_GROUP_MULTITOUCH, v, p)
147 #define MT_BT_DEVICE(v, p) HID_DEVICE(BUS_BLUETOOTH, HID_GROUP_MULTITOUCH, v, p)
148
149 /*
150 * these device-dependent functions determine what slot corresponds
151 * to a valid contact that was just read.
152 */
153
154 static int cypress_compute_slot(struct mt_device *td)
155 {
156 if (td->curdata.contactid != 0 || td->num_received == 0)
157 return td->curdata.contactid;
158 else
159 return -1;
160 }
161
162 static struct mt_class mt_classes[] = {
163 { .name = MT_CLS_DEFAULT,
164 .quirks = MT_QUIRK_ALWAYS_VALID |
165 MT_QUIRK_CONTACT_CNT_ACCURATE },
166 { .name = MT_CLS_NSMU,
167 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP },
168 { .name = MT_CLS_SERIAL,
169 .quirks = MT_QUIRK_ALWAYS_VALID},
170 { .name = MT_CLS_CONFIDENCE,
171 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE },
172 { .name = MT_CLS_CONFIDENCE_CONTACT_ID,
173 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE |
174 MT_QUIRK_SLOT_IS_CONTACTID },
175 { .name = MT_CLS_CONFIDENCE_MINUS_ONE,
176 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE |
177 MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE },
178 { .name = MT_CLS_DUAL_INRANGE_CONTACTID,
179 .quirks = MT_QUIRK_VALID_IS_INRANGE |
180 MT_QUIRK_SLOT_IS_CONTACTID,
181 .maxcontacts = 2 },
182 { .name = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
183 .quirks = MT_QUIRK_VALID_IS_INRANGE |
184 MT_QUIRK_SLOT_IS_CONTACTNUMBER,
185 .maxcontacts = 2 },
186 { .name = MT_CLS_DUAL_NSMU_CONTACTID,
187 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP |
188 MT_QUIRK_SLOT_IS_CONTACTID,
189 .maxcontacts = 2 },
190 { .name = MT_CLS_INRANGE_CONTACTNUMBER,
191 .quirks = MT_QUIRK_VALID_IS_INRANGE |
192 MT_QUIRK_SLOT_IS_CONTACTNUMBER },
193 { .name = MT_CLS_DUAL_CONTACT_NUMBER,
194 .quirks = MT_QUIRK_ALWAYS_VALID |
195 MT_QUIRK_CONTACT_CNT_ACCURATE |
196 MT_QUIRK_SLOT_IS_CONTACTNUMBER,
197 .maxcontacts = 2 },
198 { .name = MT_CLS_DUAL_CONTACT_ID,
199 .quirks = MT_QUIRK_ALWAYS_VALID |
200 MT_QUIRK_CONTACT_CNT_ACCURATE |
201 MT_QUIRK_SLOT_IS_CONTACTID,
202 .maxcontacts = 2 },
203
204 /*
205 * vendor specific classes
206 */
207 { .name = MT_CLS_3M,
208 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE |
209 MT_QUIRK_SLOT_IS_CONTACTID,
210 .sn_move = 2048,
211 .sn_width = 128,
212 .sn_height = 128,
213 .maxcontacts = 60,
214 },
215 { .name = MT_CLS_CYPRESS,
216 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP |
217 MT_QUIRK_CYPRESS,
218 .maxcontacts = 10 },
219 { .name = MT_CLS_EGALAX,
220 .quirks = MT_QUIRK_SLOT_IS_CONTACTID |
221 MT_QUIRK_VALID_IS_INRANGE,
222 .sn_move = 4096,
223 .sn_pressure = 32,
224 },
225 { .name = MT_CLS_EGALAX_SERIAL,
226 .quirks = MT_QUIRK_SLOT_IS_CONTACTID |
227 MT_QUIRK_ALWAYS_VALID,
228 .sn_move = 4096,
229 .sn_pressure = 32,
230 },
231 { .name = MT_CLS_TOPSEED,
232 .quirks = MT_QUIRK_ALWAYS_VALID,
233 .is_indirect = true,
234 .maxcontacts = 2,
235 },
236 { .name = MT_CLS_PANASONIC,
237 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP,
238 .maxcontacts = 4 },
239 { .name = MT_CLS_GENERALTOUCH_TWOFINGERS,
240 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP |
241 MT_QUIRK_VALID_IS_INRANGE |
242 MT_QUIRK_SLOT_IS_CONTACTNUMBER,
243 .maxcontacts = 2
244 },
245 { .name = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
246 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP |
247 MT_QUIRK_SLOT_IS_CONTACTNUMBER
248 },
249
250 { .name = MT_CLS_FLATFROG,
251 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP |
252 MT_QUIRK_NO_AREA,
253 .sn_move = 2048,
254 .maxcontacts = 40,
255 },
256 { }
257 };
258
259 static ssize_t mt_show_quirks(struct device *dev,
260 struct device_attribute *attr,
261 char *buf)
262 {
263 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
264 struct mt_device *td = hid_get_drvdata(hdev);
265
266 return sprintf(buf, "%u\n", td->mtclass.quirks);
267 }
268
269 static ssize_t mt_set_quirks(struct device *dev,
270 struct device_attribute *attr,
271 const char *buf, size_t count)
272 {
273 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
274 struct mt_device *td = hid_get_drvdata(hdev);
275
276 unsigned long val;
277
278 if (kstrtoul(buf, 0, &val))
279 return -EINVAL;
280
281 td->mtclass.quirks = val;
282
283 if (td->cc_index < 0)
284 td->mtclass.quirks &= ~MT_QUIRK_CONTACT_CNT_ACCURATE;
285
286 return count;
287 }
288
289 static DEVICE_ATTR(quirks, S_IWUSR | S_IRUGO, mt_show_quirks, mt_set_quirks);
290
291 static struct attribute *sysfs_attrs[] = {
292 &dev_attr_quirks.attr,
293 NULL
294 };
295
296 static struct attribute_group mt_attribute_group = {
297 .attrs = sysfs_attrs
298 };
299
300 static void mt_feature_mapping(struct hid_device *hdev,
301 struct hid_field *field, struct hid_usage *usage)
302 {
303 struct mt_device *td = hid_get_drvdata(hdev);
304 int i;
305
306 switch (usage->hid) {
307 case HID_DG_INPUTMODE:
308 td->inputmode = field->report->id;
309 td->inputmode_index = 0; /* has to be updated below */
310
311 for (i=0; i < field->maxusage; i++) {
312 if (field->usage[i].hid == usage->hid) {
313 td->inputmode_index = i;
314 break;
315 }
316 }
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 case 0xff0000c5:
331 if (field->report_count == 256 && field->report_size == 8) {
332 /* Win 8 devices need special quirks */
333 __s32 *quirks = &td->mtclass.quirks;
334 *quirks |= MT_QUIRK_ALWAYS_VALID;
335 *quirks |= MT_QUIRK_IGNORE_DUPLICATES;
336 *quirks |= MT_QUIRK_HOVERING;
337 *quirks |= MT_QUIRK_CONTACT_CNT_ACCURATE;
338 *quirks &= ~MT_QUIRK_NOT_SEEN_MEANS_UP;
339 *quirks &= ~MT_QUIRK_VALID_IS_INRANGE;
340 *quirks &= ~MT_QUIRK_VALID_IS_CONFIDENCE;
341 }
342 break;
343 }
344 }
345
346 static void set_abs(struct input_dev *input, unsigned int code,
347 struct hid_field *field, int snratio)
348 {
349 int fmin = field->logical_minimum;
350 int fmax = field->logical_maximum;
351 int fuzz = snratio ? (fmax - fmin) / snratio : 0;
352 input_set_abs_params(input, code, fmin, fmax, fuzz, 0);
353 input_abs_set_res(input, code, hidinput_calc_abs_res(field, code));
354 }
355
356 static void mt_store_field(struct hid_usage *usage, struct mt_device *td,
357 struct hid_input *hi)
358 {
359 struct mt_fields *f = td->fields;
360
361 if (f->length >= HID_MAX_FIELDS)
362 return;
363
364 f->usages[f->length++] = usage->hid;
365 }
366
367 static int mt_input_mapping(struct hid_device *hdev, struct hid_input *hi,
368 struct hid_field *field, struct hid_usage *usage,
369 unsigned long **bit, int *max)
370 {
371 struct mt_device *td = hid_get_drvdata(hdev);
372 struct mt_class *cls = &td->mtclass;
373 int code;
374 struct hid_usage *prev_usage = NULL;
375
376 /* Only map fields from TouchScreen or TouchPad collections.
377 * We need to ignore fields that belong to other collections
378 * such as Mouse that might have the same GenericDesktop usages. */
379 if (field->application == HID_DG_TOUCHSCREEN)
380 td->mt_flags |= INPUT_MT_DIRECT;
381 else if (field->application != HID_DG_TOUCHPAD)
382 return 0;
383
384 /*
385 * Model touchscreens providing buttons as touchpads.
386 */
387 if (field->application == HID_DG_TOUCHPAD ||
388 (usage->hid & HID_USAGE_PAGE) == HID_UP_BUTTON)
389 td->mt_flags |= INPUT_MT_POINTER;
390
391 /* eGalax devices provide a Digitizer.Stylus input which overrides
392 * the correct Digitizers.Finger X/Y ranges.
393 * Let's just ignore this input. */
394 if (field->physical == HID_DG_STYLUS)
395 return -1;
396
397 if (usage->usage_index)
398 prev_usage = &field->usage[usage->usage_index - 1];
399
400 switch (usage->hid & HID_USAGE_PAGE) {
401
402 case HID_UP_GENDESK:
403 switch (usage->hid) {
404 case HID_GD_X:
405 if (prev_usage && (prev_usage->hid == usage->hid)) {
406 hid_map_usage(hi, usage, bit, max,
407 EV_ABS, ABS_MT_TOOL_X);
408 set_abs(hi->input, ABS_MT_TOOL_X, field,
409 cls->sn_move);
410 } else {
411 hid_map_usage(hi, usage, bit, max,
412 EV_ABS, ABS_MT_POSITION_X);
413 set_abs(hi->input, ABS_MT_POSITION_X, field,
414 cls->sn_move);
415 }
416
417 mt_store_field(usage, td, hi);
418 return 1;
419 case HID_GD_Y:
420 if (prev_usage && (prev_usage->hid == usage->hid)) {
421 hid_map_usage(hi, usage, bit, max,
422 EV_ABS, ABS_MT_TOOL_Y);
423 set_abs(hi->input, ABS_MT_TOOL_Y, field,
424 cls->sn_move);
425 } else {
426 hid_map_usage(hi, usage, bit, max,
427 EV_ABS, ABS_MT_POSITION_Y);
428 set_abs(hi->input, ABS_MT_POSITION_Y, field,
429 cls->sn_move);
430 }
431
432 mt_store_field(usage, td, hi);
433 return 1;
434 }
435 return 0;
436
437 case HID_UP_DIGITIZER:
438 switch (usage->hid) {
439 case HID_DG_INRANGE:
440 if (cls->quirks & MT_QUIRK_HOVERING) {
441 hid_map_usage(hi, usage, bit, max,
442 EV_ABS, ABS_MT_DISTANCE);
443 input_set_abs_params(hi->input,
444 ABS_MT_DISTANCE, 0, 1, 0, 0);
445 }
446 mt_store_field(usage, td, hi);
447 return 1;
448 case HID_DG_CONFIDENCE:
449 mt_store_field(usage, td, hi);
450 return 1;
451 case HID_DG_TIPSWITCH:
452 hid_map_usage(hi, usage, bit, max, EV_KEY, BTN_TOUCH);
453 input_set_capability(hi->input, EV_KEY, BTN_TOUCH);
454 mt_store_field(usage, td, hi);
455 return 1;
456 case HID_DG_CONTACTID:
457 mt_store_field(usage, td, hi);
458 td->touches_by_report++;
459 td->mt_report_id = field->report->id;
460 return 1;
461 case HID_DG_WIDTH:
462 hid_map_usage(hi, usage, bit, max,
463 EV_ABS, ABS_MT_TOUCH_MAJOR);
464 if (!(cls->quirks & MT_QUIRK_NO_AREA))
465 set_abs(hi->input, ABS_MT_TOUCH_MAJOR, field,
466 cls->sn_width);
467 mt_store_field(usage, td, hi);
468 return 1;
469 case HID_DG_HEIGHT:
470 hid_map_usage(hi, usage, bit, max,
471 EV_ABS, ABS_MT_TOUCH_MINOR);
472 if (!(cls->quirks & MT_QUIRK_NO_AREA)) {
473 set_abs(hi->input, ABS_MT_TOUCH_MINOR, field,
474 cls->sn_height);
475 input_set_abs_params(hi->input,
476 ABS_MT_ORIENTATION, 0, 1, 0, 0);
477 }
478 mt_store_field(usage, td, hi);
479 return 1;
480 case HID_DG_TIPPRESSURE:
481 hid_map_usage(hi, usage, bit, max,
482 EV_ABS, ABS_MT_PRESSURE);
483 set_abs(hi->input, ABS_MT_PRESSURE, field,
484 cls->sn_pressure);
485 mt_store_field(usage, td, hi);
486 return 1;
487 case HID_DG_CONTACTCOUNT:
488 td->cc_index = field->index;
489 td->cc_value_index = usage->usage_index;
490 return 1;
491 case HID_DG_CONTACTMAX:
492 /* we don't set td->last_slot_field as contactcount and
493 * contact max are global to the report */
494 return -1;
495 case HID_DG_TOUCH:
496 /* Legacy devices use TIPSWITCH and not TOUCH.
497 * Let's just ignore this field. */
498 return -1;
499 }
500 /* let hid-input decide for the others */
501 return 0;
502
503 case HID_UP_BUTTON:
504 code = BTN_MOUSE + ((usage->hid - 1) & HID_USAGE);
505 hid_map_usage(hi, usage, bit, max, EV_KEY, code);
506 input_set_capability(hi->input, EV_KEY, code);
507 return 1;
508
509 case 0xff000000:
510 /* we do not want to map these: no input-oriented meaning */
511 return -1;
512 }
513
514 return 0;
515 }
516
517 static int mt_input_mapped(struct hid_device *hdev, struct hid_input *hi,
518 struct hid_field *field, struct hid_usage *usage,
519 unsigned long **bit, int *max)
520 {
521 if (usage->type == EV_KEY || usage->type == EV_ABS)
522 set_bit(usage->type, hi->input->evbit);
523
524 return -1;
525 }
526
527 static int mt_compute_slot(struct mt_device *td, struct input_dev *input)
528 {
529 __s32 quirks = td->mtclass.quirks;
530
531 if (quirks & MT_QUIRK_SLOT_IS_CONTACTID)
532 return td->curdata.contactid;
533
534 if (quirks & MT_QUIRK_CYPRESS)
535 return cypress_compute_slot(td);
536
537 if (quirks & MT_QUIRK_SLOT_IS_CONTACTNUMBER)
538 return td->num_received;
539
540 if (quirks & MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE)
541 return td->curdata.contactid - 1;
542
543 return input_mt_get_slot_by_key(input, td->curdata.contactid);
544 }
545
546 /*
547 * this function is called when a whole contact has been processed,
548 * so that it can assign it to a slot and store the data there
549 */
550 static void mt_complete_slot(struct mt_device *td, struct input_dev *input)
551 {
552 if ((td->mtclass.quirks & MT_QUIRK_CONTACT_CNT_ACCURATE) &&
553 td->num_received >= td->num_expected)
554 return;
555
556 if (td->curvalid || (td->mtclass.quirks & MT_QUIRK_ALWAYS_VALID)) {
557 int slotnum = mt_compute_slot(td, input);
558 struct mt_slot *s = &td->curdata;
559 struct input_mt *mt = input->mt;
560
561 if (slotnum < 0 || slotnum >= td->maxcontacts)
562 return;
563
564 if ((td->mtclass.quirks & MT_QUIRK_IGNORE_DUPLICATES) && mt) {
565 struct input_mt_slot *slot = &mt->slots[slotnum];
566 if (input_mt_is_active(slot) &&
567 input_mt_is_used(mt, slot))
568 return;
569 }
570
571 input_mt_slot(input, slotnum);
572 input_mt_report_slot_state(input, MT_TOOL_FINGER,
573 s->touch_state || s->inrange_state);
574 if (s->touch_state || s->inrange_state) {
575 /* this finger is in proximity of the sensor */
576 int wide = (s->w > s->h);
577 /* divided by two to match visual scale of touch */
578 int major = max(s->w, s->h) >> 1;
579 int minor = min(s->w, s->h) >> 1;
580
581 input_event(input, EV_ABS, ABS_MT_POSITION_X, s->x);
582 input_event(input, EV_ABS, ABS_MT_POSITION_Y, s->y);
583 input_event(input, EV_ABS, ABS_MT_TOOL_X, s->cx);
584 input_event(input, EV_ABS, ABS_MT_TOOL_Y, s->cy);
585 input_event(input, EV_ABS, ABS_MT_DISTANCE,
586 !s->touch_state);
587 input_event(input, EV_ABS, ABS_MT_ORIENTATION, wide);
588 input_event(input, EV_ABS, ABS_MT_PRESSURE, s->p);
589 input_event(input, EV_ABS, ABS_MT_TOUCH_MAJOR, major);
590 input_event(input, EV_ABS, ABS_MT_TOUCH_MINOR, minor);
591 }
592 }
593
594 td->num_received++;
595 }
596
597 /*
598 * this function is called when a whole packet has been received and processed,
599 * so that it can decide what to send to the input layer.
600 */
601 static void mt_sync_frame(struct mt_device *td, struct input_dev *input)
602 {
603 input_mt_sync_frame(input);
604 input_sync(input);
605 td->num_received = 0;
606 }
607
608 static int mt_event(struct hid_device *hid, struct hid_field *field,
609 struct hid_usage *usage, __s32 value)
610 {
611 /* we will handle the hidinput part later, now remains hiddev */
612 if (hid->claimed & HID_CLAIMED_HIDDEV && hid->hiddev_hid_event)
613 hid->hiddev_hid_event(hid, field, usage, value);
614
615 return 1;
616 }
617
618 static void mt_process_mt_event(struct hid_device *hid, struct hid_field *field,
619 struct hid_usage *usage, __s32 value)
620 {
621 struct mt_device *td = hid_get_drvdata(hid);
622 __s32 quirks = td->mtclass.quirks;
623
624 if (hid->claimed & HID_CLAIMED_INPUT) {
625 switch (usage->hid) {
626 case HID_DG_INRANGE:
627 if (quirks & MT_QUIRK_VALID_IS_INRANGE)
628 td->curvalid = value;
629 if (quirks & MT_QUIRK_HOVERING)
630 td->curdata.inrange_state = value;
631 break;
632 case HID_DG_TIPSWITCH:
633 if (quirks & MT_QUIRK_NOT_SEEN_MEANS_UP)
634 td->curvalid = value;
635 td->curdata.touch_state = value;
636 break;
637 case HID_DG_CONFIDENCE:
638 if (quirks & MT_QUIRK_VALID_IS_CONFIDENCE)
639 td->curvalid = value;
640 break;
641 case HID_DG_CONTACTID:
642 td->curdata.contactid = value;
643 break;
644 case HID_DG_TIPPRESSURE:
645 td->curdata.p = value;
646 break;
647 case HID_GD_X:
648 if (usage->code == ABS_MT_TOOL_X)
649 td->curdata.cx = value;
650 else
651 td->curdata.x = value;
652 break;
653 case HID_GD_Y:
654 if (usage->code == ABS_MT_TOOL_Y)
655 td->curdata.cy = value;
656 else
657 td->curdata.y = value;
658 break;
659 case HID_DG_WIDTH:
660 td->curdata.w = value;
661 break;
662 case HID_DG_HEIGHT:
663 td->curdata.h = value;
664 break;
665 case HID_DG_CONTACTCOUNT:
666 break;
667 case HID_DG_TOUCH:
668 /* do nothing */
669 break;
670
671 default:
672 return;
673 }
674
675 if (usage->usage_index + 1 == field->report_count) {
676 /* we only take into account the last report. */
677 if (usage->hid == td->last_slot_field)
678 mt_complete_slot(td, field->hidinput->input);
679 }
680
681 }
682 }
683
684 static void mt_report(struct hid_device *hid, struct hid_report *report)
685 {
686 struct mt_device *td = hid_get_drvdata(hid);
687 struct hid_field *field;
688 unsigned count;
689 int r, n;
690
691 if (report->id != td->mt_report_id)
692 return;
693
694 if (!(hid->claimed & HID_CLAIMED_INPUT))
695 return;
696
697 /*
698 * Includes multi-packet support where subsequent
699 * packets are sent with zero contactcount.
700 */
701 if (td->cc_index >= 0) {
702 struct hid_field *field = report->field[td->cc_index];
703 int value = field->value[td->cc_value_index];
704 if (value)
705 td->num_expected = value;
706 }
707
708 for (r = 0; r < report->maxfield; r++) {
709 field = report->field[r];
710 count = field->report_count;
711
712 if (!(HID_MAIN_ITEM_VARIABLE & field->flags))
713 continue;
714
715 for (n = 0; n < count; n++)
716 mt_process_mt_event(hid, field, &field->usage[n],
717 field->value[n]);
718 }
719
720 if (td->num_received >= td->num_expected)
721 mt_sync_frame(td, report->field[0]->hidinput->input);
722 }
723
724 static void mt_set_input_mode(struct hid_device *hdev)
725 {
726 struct mt_device *td = hid_get_drvdata(hdev);
727 struct hid_report *r;
728 struct hid_report_enum *re;
729
730 if (td->inputmode < 0)
731 return;
732
733 re = &(hdev->report_enum[HID_FEATURE_REPORT]);
734 r = re->report_id_hash[td->inputmode];
735 if (r) {
736 r->field[0]->value[td->inputmode_index] = 0x02;
737 hid_hw_request(hdev, r, HID_REQ_SET_REPORT);
738 }
739 }
740
741 static void mt_set_maxcontacts(struct hid_device *hdev)
742 {
743 struct mt_device *td = hid_get_drvdata(hdev);
744 struct hid_report *r;
745 struct hid_report_enum *re;
746 int fieldmax, max;
747
748 if (td->maxcontact_report_id < 0)
749 return;
750
751 if (!td->mtclass.maxcontacts)
752 return;
753
754 re = &hdev->report_enum[HID_FEATURE_REPORT];
755 r = re->report_id_hash[td->maxcontact_report_id];
756 if (r) {
757 max = td->mtclass.maxcontacts;
758 fieldmax = r->field[0]->logical_maximum;
759 max = min(fieldmax, max);
760 if (r->field[0]->value[0] != max) {
761 r->field[0]->value[0] = max;
762 hid_hw_request(hdev, r, HID_REQ_SET_REPORT);
763 }
764 }
765 }
766
767 static void mt_post_parse_default_settings(struct mt_device *td)
768 {
769 __s32 quirks = td->mtclass.quirks;
770
771 /* unknown serial device needs special quirks */
772 if (td->touches_by_report == 1) {
773 quirks |= MT_QUIRK_ALWAYS_VALID;
774 quirks &= ~MT_QUIRK_NOT_SEEN_MEANS_UP;
775 quirks &= ~MT_QUIRK_VALID_IS_INRANGE;
776 quirks &= ~MT_QUIRK_VALID_IS_CONFIDENCE;
777 quirks &= ~MT_QUIRK_CONTACT_CNT_ACCURATE;
778 }
779
780 td->mtclass.quirks = quirks;
781 }
782
783 static void mt_post_parse(struct mt_device *td)
784 {
785 struct mt_fields *f = td->fields;
786 struct mt_class *cls = &td->mtclass;
787
788 if (td->touches_by_report > 0) {
789 int field_count_per_touch = f->length / td->touches_by_report;
790 td->last_slot_field = f->usages[field_count_per_touch - 1];
791 }
792
793 if (td->cc_index < 0)
794 cls->quirks &= ~MT_QUIRK_CONTACT_CNT_ACCURATE;
795 }
796
797 static void mt_input_configured(struct hid_device *hdev, struct hid_input *hi)
798
799 {
800 struct mt_device *td = hid_get_drvdata(hdev);
801 struct mt_class *cls = &td->mtclass;
802 struct input_dev *input = hi->input;
803
804 /* Only initialize slots for MT input devices */
805 if (!test_bit(ABS_MT_POSITION_X, input->absbit))
806 return;
807
808 if (!td->maxcontacts)
809 td->maxcontacts = MT_DEFAULT_MAXCONTACT;
810
811 mt_post_parse(td);
812 if (td->serial_maybe)
813 mt_post_parse_default_settings(td);
814
815 if (cls->is_indirect)
816 td->mt_flags |= INPUT_MT_POINTER;
817
818 if (cls->quirks & MT_QUIRK_NOT_SEEN_MEANS_UP)
819 td->mt_flags |= INPUT_MT_DROP_UNUSED;
820
821 input_mt_init_slots(input, td->maxcontacts, td->mt_flags);
822
823 td->mt_flags = 0;
824 }
825
826 static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id)
827 {
828 int ret, i;
829 struct mt_device *td;
830 struct mt_class *mtclass = mt_classes; /* MT_CLS_DEFAULT */
831
832 for (i = 0; mt_classes[i].name ; i++) {
833 if (id->driver_data == mt_classes[i].name) {
834 mtclass = &(mt_classes[i]);
835 break;
836 }
837 }
838
839 /* This allows the driver to correctly support devices
840 * that emit events over several HID messages.
841 */
842 hdev->quirks |= HID_QUIRK_NO_INPUT_SYNC;
843
844 td = kzalloc(sizeof(struct mt_device), GFP_KERNEL);
845 if (!td) {
846 dev_err(&hdev->dev, "cannot allocate multitouch data\n");
847 return -ENOMEM;
848 }
849 td->mtclass = *mtclass;
850 td->inputmode = -1;
851 td->maxcontact_report_id = -1;
852 td->cc_index = -1;
853 hid_set_drvdata(hdev, td);
854
855 td->fields = kzalloc(sizeof(struct mt_fields), GFP_KERNEL);
856 if (!td->fields) {
857 dev_err(&hdev->dev, "cannot allocate multitouch fields data\n");
858 ret = -ENOMEM;
859 goto fail;
860 }
861
862 if (id->vendor == HID_ANY_ID && id->product == HID_ANY_ID)
863 td->serial_maybe = true;
864
865 ret = hid_parse(hdev);
866 if (ret != 0)
867 goto fail;
868
869 ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
870 if (ret)
871 goto fail;
872
873 ret = sysfs_create_group(&hdev->dev.kobj, &mt_attribute_group);
874
875 mt_set_maxcontacts(hdev);
876 mt_set_input_mode(hdev);
877
878 kfree(td->fields);
879 td->fields = NULL;
880
881 return 0;
882
883 fail:
884 kfree(td->fields);
885 kfree(td);
886 return ret;
887 }
888
889 #ifdef CONFIG_PM
890 static int mt_reset_resume(struct hid_device *hdev)
891 {
892 mt_set_maxcontacts(hdev);
893 mt_set_input_mode(hdev);
894 return 0;
895 }
896
897 static int mt_resume(struct hid_device *hdev)
898 {
899 /* Some Elan legacy devices require SET_IDLE to be set on resume.
900 * It should be safe to send it to other devices too.
901 * Tested on 3M, Stantum, Cypress, Zytronic, eGalax, and Elan panels. */
902
903 hid_hw_idle(hdev, 0, 0, HID_REQ_SET_IDLE);
904
905 return 0;
906 }
907 #endif
908
909 static void mt_remove(struct hid_device *hdev)
910 {
911 struct mt_device *td = hid_get_drvdata(hdev);
912 sysfs_remove_group(&hdev->dev.kobj, &mt_attribute_group);
913 hid_hw_stop(hdev);
914 kfree(td);
915 hid_set_drvdata(hdev, NULL);
916 }
917
918 static const struct hid_device_id mt_devices[] = {
919
920 /* 3M panels */
921 { .driver_data = MT_CLS_3M,
922 MT_USB_DEVICE(USB_VENDOR_ID_3M,
923 USB_DEVICE_ID_3M1968) },
924 { .driver_data = MT_CLS_3M,
925 MT_USB_DEVICE(USB_VENDOR_ID_3M,
926 USB_DEVICE_ID_3M2256) },
927 { .driver_data = MT_CLS_3M,
928 MT_USB_DEVICE(USB_VENDOR_ID_3M,
929 USB_DEVICE_ID_3M3266) },
930
931 /* ActionStar panels */
932 { .driver_data = MT_CLS_NSMU,
933 MT_USB_DEVICE(USB_VENDOR_ID_ACTIONSTAR,
934 USB_DEVICE_ID_ACTIONSTAR_1011) },
935
936 /* Atmel panels */
937 { .driver_data = MT_CLS_SERIAL,
938 MT_USB_DEVICE(USB_VENDOR_ID_ATMEL,
939 USB_DEVICE_ID_ATMEL_MULTITOUCH) },
940 { .driver_data = MT_CLS_SERIAL,
941 MT_USB_DEVICE(USB_VENDOR_ID_ATMEL,
942 USB_DEVICE_ID_ATMEL_MXT_DIGITIZER) },
943
944 /* Baanto multitouch devices */
945 { .driver_data = MT_CLS_NSMU,
946 MT_USB_DEVICE(USB_VENDOR_ID_BAANTO,
947 USB_DEVICE_ID_BAANTO_MT_190W2) },
948 /* Cando panels */
949 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
950 MT_USB_DEVICE(USB_VENDOR_ID_CANDO,
951 USB_DEVICE_ID_CANDO_MULTI_TOUCH) },
952 { .driver_data = MT_CLS_DUAL_CONTACT_NUMBER,
953 MT_USB_DEVICE(USB_VENDOR_ID_CANDO,
954 USB_DEVICE_ID_CANDO_MULTI_TOUCH_10_1) },
955 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
956 MT_USB_DEVICE(USB_VENDOR_ID_CANDO,
957 USB_DEVICE_ID_CANDO_MULTI_TOUCH_11_6) },
958 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
959 MT_USB_DEVICE(USB_VENDOR_ID_CANDO,
960 USB_DEVICE_ID_CANDO_MULTI_TOUCH_15_6) },
961
962 /* Chunghwa Telecom touch panels */
963 { .driver_data = MT_CLS_NSMU,
964 MT_USB_DEVICE(USB_VENDOR_ID_CHUNGHWAT,
965 USB_DEVICE_ID_CHUNGHWAT_MULTITOUCH) },
966
967 /* CVTouch panels */
968 { .driver_data = MT_CLS_NSMU,
969 MT_USB_DEVICE(USB_VENDOR_ID_CVTOUCH,
970 USB_DEVICE_ID_CVTOUCH_SCREEN) },
971
972 /* Cypress panel */
973 { .driver_data = MT_CLS_CYPRESS,
974 HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS,
975 USB_DEVICE_ID_CYPRESS_TRUETOUCH) },
976
977 /* eGalax devices (resistive) */
978 { .driver_data = MT_CLS_EGALAX,
979 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
980 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_480D) },
981 { .driver_data = MT_CLS_EGALAX,
982 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
983 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_480E) },
984
985 /* eGalax devices (capacitive) */
986 { .driver_data = MT_CLS_EGALAX,
987 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
988 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_720C) },
989 { .driver_data = MT_CLS_EGALAX_SERIAL,
990 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
991 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7207) },
992 { .driver_data = MT_CLS_EGALAX_SERIAL,
993 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
994 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_725E) },
995 { .driver_data = MT_CLS_EGALAX_SERIAL,
996 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
997 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7224) },
998 { .driver_data = MT_CLS_EGALAX_SERIAL,
999 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1000 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_722A) },
1001 { .driver_data = MT_CLS_EGALAX,
1002 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1003 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_726B) },
1004 { .driver_data = MT_CLS_EGALAX_SERIAL,
1005 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1006 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7262) },
1007 { .driver_data = MT_CLS_EGALAX,
1008 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1009 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72A1) },
1010 { .driver_data = MT_CLS_EGALAX_SERIAL,
1011 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1012 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72AA) },
1013 { .driver_data = MT_CLS_EGALAX,
1014 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1015 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72FA) },
1016 { .driver_data = MT_CLS_EGALAX,
1017 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1018 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7302) },
1019 { .driver_data = MT_CLS_EGALAX_SERIAL,
1020 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1021 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7349) },
1022 { .driver_data = MT_CLS_EGALAX_SERIAL,
1023 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1024 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_73F7) },
1025 { .driver_data = MT_CLS_EGALAX_SERIAL,
1026 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1027 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_A001) },
1028 { .driver_data = MT_CLS_EGALAX,
1029 HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
1030 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7224) },
1031 { .driver_data = MT_CLS_EGALAX,
1032 HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
1033 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72D0) },
1034 { .driver_data = MT_CLS_EGALAX,
1035 HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
1036 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72C4) },
1037
1038 /* Elo TouchSystems IntelliTouch Plus panel */
1039 { .driver_data = MT_CLS_DUAL_CONTACT_ID,
1040 MT_USB_DEVICE(USB_VENDOR_ID_ELO,
1041 USB_DEVICE_ID_ELO_TS2515) },
1042
1043 /* Flatfrog Panels */
1044 { .driver_data = MT_CLS_FLATFROG,
1045 MT_USB_DEVICE(USB_VENDOR_ID_FLATFROG,
1046 USB_DEVICE_ID_MULTITOUCH_3200) },
1047
1048 /* GeneralTouch panel */
1049 { .driver_data = MT_CLS_GENERALTOUCH_TWOFINGERS,
1050 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
1051 USB_DEVICE_ID_GENERAL_TOUCH_WIN7_TWOFINGERS) },
1052 { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
1053 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
1054 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PWT_TENFINGERS) },
1055
1056 /* Gametel game controller */
1057 { .driver_data = MT_CLS_NSMU,
1058 MT_BT_DEVICE(USB_VENDOR_ID_FRUCTEL,
1059 USB_DEVICE_ID_GAMETEL_MT_MODE) },
1060
1061 /* GoodTouch panels */
1062 { .driver_data = MT_CLS_NSMU,
1063 MT_USB_DEVICE(USB_VENDOR_ID_GOODTOUCH,
1064 USB_DEVICE_ID_GOODTOUCH_000f) },
1065
1066 /* Hanvon panels */
1067 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID,
1068 MT_USB_DEVICE(USB_VENDOR_ID_HANVON_ALT,
1069 USB_DEVICE_ID_HANVON_ALT_MULTITOUCH) },
1070
1071 /* Ideacom panel */
1072 { .driver_data = MT_CLS_SERIAL,
1073 MT_USB_DEVICE(USB_VENDOR_ID_IDEACOM,
1074 USB_DEVICE_ID_IDEACOM_IDC6650) },
1075 { .driver_data = MT_CLS_SERIAL,
1076 MT_USB_DEVICE(USB_VENDOR_ID_IDEACOM,
1077 USB_DEVICE_ID_IDEACOM_IDC6651) },
1078
1079 /* Ilitek dual touch panel */
1080 { .driver_data = MT_CLS_NSMU,
1081 MT_USB_DEVICE(USB_VENDOR_ID_ILITEK,
1082 USB_DEVICE_ID_ILITEK_MULTITOUCH) },
1083
1084 /* IRTOUCH panels */
1085 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID,
1086 MT_USB_DEVICE(USB_VENDOR_ID_IRTOUCHSYSTEMS,
1087 USB_DEVICE_ID_IRTOUCH_INFRARED_USB) },
1088
1089 /* LG Display panels */
1090 { .driver_data = MT_CLS_DEFAULT,
1091 MT_USB_DEVICE(USB_VENDOR_ID_LG,
1092 USB_DEVICE_ID_LG_MULTITOUCH) },
1093
1094 /* Lumio panels */
1095 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
1096 MT_USB_DEVICE(USB_VENDOR_ID_LUMIO,
1097 USB_DEVICE_ID_CRYSTALTOUCH) },
1098 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
1099 MT_USB_DEVICE(USB_VENDOR_ID_LUMIO,
1100 USB_DEVICE_ID_CRYSTALTOUCH_DUAL) },
1101
1102 /* MosArt panels */
1103 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
1104 MT_USB_DEVICE(USB_VENDOR_ID_ASUS,
1105 USB_DEVICE_ID_ASUS_T91MT)},
1106 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
1107 MT_USB_DEVICE(USB_VENDOR_ID_ASUS,
1108 USB_DEVICE_ID_ASUSTEK_MULTITOUCH_YFO) },
1109 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
1110 MT_USB_DEVICE(USB_VENDOR_ID_TURBOX,
1111 USB_DEVICE_ID_TURBOX_TOUCHSCREEN_MOSART) },
1112
1113 /* Nexio panels */
1114 { .driver_data = MT_CLS_DEFAULT,
1115 MT_USB_DEVICE(USB_VENDOR_ID_NEXIO,
1116 USB_DEVICE_ID_NEXIO_MULTITOUCH_420)},
1117
1118 /* Panasonic panels */
1119 { .driver_data = MT_CLS_PANASONIC,
1120 MT_USB_DEVICE(USB_VENDOR_ID_PANASONIC,
1121 USB_DEVICE_ID_PANABOARD_UBT780) },
1122 { .driver_data = MT_CLS_PANASONIC,
1123 MT_USB_DEVICE(USB_VENDOR_ID_PANASONIC,
1124 USB_DEVICE_ID_PANABOARD_UBT880) },
1125
1126 /* Novatek Panel */
1127 { .driver_data = MT_CLS_NSMU,
1128 MT_USB_DEVICE(USB_VENDOR_ID_NOVATEK,
1129 USB_DEVICE_ID_NOVATEK_PCT) },
1130
1131 /* PenMount panels */
1132 { .driver_data = MT_CLS_CONFIDENCE,
1133 MT_USB_DEVICE(USB_VENDOR_ID_PENMOUNT,
1134 USB_DEVICE_ID_PENMOUNT_PCI) },
1135
1136 /* PixArt optical touch screen */
1137 { .driver_data = MT_CLS_INRANGE_CONTACTNUMBER,
1138 MT_USB_DEVICE(USB_VENDOR_ID_PIXART,
1139 USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN) },
1140 { .driver_data = MT_CLS_INRANGE_CONTACTNUMBER,
1141 MT_USB_DEVICE(USB_VENDOR_ID_PIXART,
1142 USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN1) },
1143 { .driver_data = MT_CLS_INRANGE_CONTACTNUMBER,
1144 MT_USB_DEVICE(USB_VENDOR_ID_PIXART,
1145 USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN2) },
1146
1147 /* PixCir-based panels */
1148 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID,
1149 MT_USB_DEVICE(USB_VENDOR_ID_HANVON,
1150 USB_DEVICE_ID_HANVON_MULTITOUCH) },
1151 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID,
1152 MT_USB_DEVICE(USB_VENDOR_ID_CANDO,
1153 USB_DEVICE_ID_CANDO_PIXCIR_MULTI_TOUCH) },
1154
1155 /* Quanta-based panels */
1156 { .driver_data = MT_CLS_CONFIDENCE_CONTACT_ID,
1157 MT_USB_DEVICE(USB_VENDOR_ID_QUANTA,
1158 USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH) },
1159 { .driver_data = MT_CLS_CONFIDENCE_CONTACT_ID,
1160 MT_USB_DEVICE(USB_VENDOR_ID_QUANTA,
1161 USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3001) },
1162 { .driver_data = MT_CLS_CONFIDENCE_CONTACT_ID,
1163 MT_USB_DEVICE(USB_VENDOR_ID_QUANTA,
1164 USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3008) },
1165
1166 /* Stantum panels */
1167 { .driver_data = MT_CLS_CONFIDENCE,
1168 MT_USB_DEVICE(USB_VENDOR_ID_STANTUM,
1169 USB_DEVICE_ID_MTP)},
1170 { .driver_data = MT_CLS_CONFIDENCE,
1171 MT_USB_DEVICE(USB_VENDOR_ID_STANTUM_STM,
1172 USB_DEVICE_ID_MTP_STM)},
1173 { .driver_data = MT_CLS_DEFAULT,
1174 MT_USB_DEVICE(USB_VENDOR_ID_STANTUM_SITRONIX,
1175 USB_DEVICE_ID_MTP_SITRONIX)},
1176
1177 /* TopSeed panels */
1178 { .driver_data = MT_CLS_TOPSEED,
1179 MT_USB_DEVICE(USB_VENDOR_ID_TOPSEED2,
1180 USB_DEVICE_ID_TOPSEED2_PERIPAD_701) },
1181
1182 /* Touch International panels */
1183 { .driver_data = MT_CLS_NSMU,
1184 MT_USB_DEVICE(USB_VENDOR_ID_TOUCH_INTL,
1185 USB_DEVICE_ID_TOUCH_INTL_MULTI_TOUCH) },
1186
1187 /* Unitec panels */
1188 { .driver_data = MT_CLS_NSMU,
1189 MT_USB_DEVICE(USB_VENDOR_ID_UNITEC,
1190 USB_DEVICE_ID_UNITEC_USB_TOUCH_0709) },
1191 { .driver_data = MT_CLS_NSMU,
1192 MT_USB_DEVICE(USB_VENDOR_ID_UNITEC,
1193 USB_DEVICE_ID_UNITEC_USB_TOUCH_0A19) },
1194 /* XAT */
1195 { .driver_data = MT_CLS_NSMU,
1196 MT_USB_DEVICE(USB_VENDOR_ID_XAT,
1197 USB_DEVICE_ID_XAT_CSR) },
1198
1199 /* Xiroku */
1200 { .driver_data = MT_CLS_NSMU,
1201 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1202 USB_DEVICE_ID_XIROKU_SPX) },
1203 { .driver_data = MT_CLS_NSMU,
1204 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1205 USB_DEVICE_ID_XIROKU_MPX) },
1206 { .driver_data = MT_CLS_NSMU,
1207 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1208 USB_DEVICE_ID_XIROKU_CSR) },
1209 { .driver_data = MT_CLS_NSMU,
1210 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1211 USB_DEVICE_ID_XIROKU_SPX1) },
1212 { .driver_data = MT_CLS_NSMU,
1213 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1214 USB_DEVICE_ID_XIROKU_MPX1) },
1215 { .driver_data = MT_CLS_NSMU,
1216 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1217 USB_DEVICE_ID_XIROKU_CSR1) },
1218 { .driver_data = MT_CLS_NSMU,
1219 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1220 USB_DEVICE_ID_XIROKU_SPX2) },
1221 { .driver_data = MT_CLS_NSMU,
1222 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1223 USB_DEVICE_ID_XIROKU_MPX2) },
1224 { .driver_data = MT_CLS_NSMU,
1225 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1226 USB_DEVICE_ID_XIROKU_CSR2) },
1227
1228 /* Zytronic panels */
1229 { .driver_data = MT_CLS_SERIAL,
1230 MT_USB_DEVICE(USB_VENDOR_ID_ZYTRONIC,
1231 USB_DEVICE_ID_ZYTRONIC_ZXY100) },
1232
1233 /* Generic MT device */
1234 { HID_DEVICE(HID_BUS_ANY, HID_GROUP_MULTITOUCH, HID_ANY_ID, HID_ANY_ID) },
1235 { }
1236 };
1237 MODULE_DEVICE_TABLE(hid, mt_devices);
1238
1239 static const struct hid_usage_id mt_grabbed_usages[] = {
1240 { HID_ANY_ID, HID_ANY_ID, HID_ANY_ID },
1241 { HID_ANY_ID - 1, HID_ANY_ID - 1, HID_ANY_ID - 1}
1242 };
1243
1244 static struct hid_driver mt_driver = {
1245 .name = "hid-multitouch",
1246 .id_table = mt_devices,
1247 .probe = mt_probe,
1248 .remove = mt_remove,
1249 .input_mapping = mt_input_mapping,
1250 .input_mapped = mt_input_mapped,
1251 .input_configured = mt_input_configured,
1252 .feature_mapping = mt_feature_mapping,
1253 .usage_table = mt_grabbed_usages,
1254 .event = mt_event,
1255 .report = mt_report,
1256 #ifdef CONFIG_PM
1257 .reset_resume = mt_reset_resume,
1258 .resume = mt_resume,
1259 #endif
1260 };
1261 module_hid_driver(mt_driver);
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