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Merge remote-tracking branch 'moduleh/module.h-split'
[linux-2.6/next.git] / drivers / hid / hid-multitouch.c
blobb03a0b0e9b6349136abf6f6132fc85fce2088588
1 /*
2 * HID driver for multitouch panels
3 *
4 * Copyright (c) 2010-2011 Stephane Chatty <chatty@enac.fr>
5 * Copyright (c) 2010-2011 Benjamin Tissoires <benjamin.tissoires@gmail.com>
6 * Copyright (c) 2010-2011 Ecole Nationale de l'Aviation Civile, France
7 *
8 * This code is partly based on hid-egalax.c:
9 *
10 * Copyright (c) 2010 Stephane Chatty <chatty@enac.fr>
11 * Copyright (c) 2010 Henrik Rydberg <rydberg@euromail.se>
12 * Copyright (c) 2010 Canonical, Ltd.
13 *
14 * This code is partly based on hid-3m-pct.c:
15 *
16 * Copyright (c) 2009-2010 Stephane Chatty <chatty@enac.fr>
17 * Copyright (c) 2010 Henrik Rydberg <rydberg@euromail.se>
18 * Copyright (c) 2010 Canonical, Ltd.
19 *
20 */
21
22 /*
23 * This program is free software; you can redistribute it and/or modify it
24 * under the terms of the GNU General Public License as published by the Free
25 * Software Foundation; either version 2 of the License, or (at your option)
26 * any later version.
27 */
28
29 #include <linux/device.h>
30 #include <linux/hid.h>
31 #include <linux/module.h>
32 #include <linux/slab.h>
33 #include <linux/usb.h>
34 #include <linux/input/mt.h>
35 #include "usbhid/usbhid.h"
36
37
38 MODULE_AUTHOR("Stephane Chatty <chatty@enac.fr>");
39 MODULE_AUTHOR("Benjamin Tissoires <benjamin.tissoires@gmail.com>");
40 MODULE_DESCRIPTION("HID multitouch panels");
41 MODULE_LICENSE("GPL");
42
43 #include "hid-ids.h"
44
45 /* quirks to control the device */
46 #define MT_QUIRK_NOT_SEEN_MEANS_UP (1 << 0)
47 #define MT_QUIRK_SLOT_IS_CONTACTID (1 << 1)
48 #define MT_QUIRK_CYPRESS (1 << 2)
49 #define MT_QUIRK_SLOT_IS_CONTACTNUMBER (1 << 3)
50 #define MT_QUIRK_VALID_IS_INRANGE (1 << 4)
51 #define MT_QUIRK_VALID_IS_CONFIDENCE (1 << 5)
52 #define MT_QUIRK_EGALAX_XYZ_FIXUP (1 << 6)
53 #define MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE (1 << 7)
54
55 struct mt_slot {
56 __s32 x, y, p, w, h;
57 __s32 contactid; /* the device ContactID assigned to this slot */
58 bool touch_state; /* is the touch valid? */
59 bool seen_in_this_frame;/* has this slot been updated */
60 };
61
62 struct mt_device {
63 struct mt_slot curdata; /* placeholder of incoming data */
64 struct mt_class *mtclass; /* our mt device class */
65 unsigned last_field_index; /* last field index of the report */
66 unsigned last_slot_field; /* the last field of a slot */
67 int last_mt_collection; /* last known mt-related collection */
68 __s8 inputmode; /* InputMode HID feature, -1 if non-existent */
69 __u8 num_received; /* how many contacts we received */
70 __u8 num_expected; /* expected last contact index */
71 __u8 maxcontacts;
72 bool curvalid; /* is the current contact valid? */
73 struct mt_slot *slots;
74 };
75
76 struct mt_class {
77 __s32 name; /* MT_CLS */
78 __s32 quirks;
79 __s32 sn_move; /* Signal/noise ratio for move events */
80 __s32 sn_width; /* Signal/noise ratio for width events */
81 __s32 sn_height; /* Signal/noise ratio for height events */
82 __s32 sn_pressure; /* Signal/noise ratio for pressure events */
83 __u8 maxcontacts;
84 };
85
86 /* classes of device behavior */
87 #define MT_CLS_DEFAULT 0x0001
88
89 #define MT_CLS_CONFIDENCE 0x0002
90 #define MT_CLS_CONFIDENCE_MINUS_ONE 0x0003
91 #define MT_CLS_DUAL_INRANGE_CONTACTID 0x0004
92 #define MT_CLS_DUAL_INRANGE_CONTACTNUMBER 0x0005
93 #define MT_CLS_DUAL_NSMU_CONTACTID 0x0006
94
95 /* vendor specific classes */
96 #define MT_CLS_3M 0x0101
97 #define MT_CLS_CYPRESS 0x0102
98 #define MT_CLS_EGALAX 0x0103
99
100 #define MT_DEFAULT_MAXCONTACT 10
101
102 /*
103 * these device-dependent functions determine what slot corresponds
104 * to a valid contact that was just read.
105 */
106
107 static int cypress_compute_slot(struct mt_device *td)
108 {
109 if (td->curdata.contactid != 0 || td->num_received == 0)
110 return td->curdata.contactid;
111 else
112 return -1;
113 }
114
115 static int find_slot_from_contactid(struct mt_device *td)
116 {
117 int i;
118 for (i = 0; i < td->maxcontacts; ++i) {
119 if (td->slots[i].contactid == td->curdata.contactid &&
120 td->slots[i].touch_state)
121 return i;
122 }
123 for (i = 0; i < td->maxcontacts; ++i) {
124 if (!td->slots[i].seen_in_this_frame &&
125 !td->slots[i].touch_state)
126 return i;
127 }
128 /* should not occurs. If this happens that means
129 * that the device sent more touches that it says
130 * in the report descriptor. It is ignored then. */
131 return -1;
132 }
133
134 struct mt_class mt_classes[] = {
135 { .name = MT_CLS_DEFAULT,
136 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP },
137 { .name = MT_CLS_CONFIDENCE,
138 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE },
139 { .name = MT_CLS_CONFIDENCE_MINUS_ONE,
140 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE |
141 MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE },
142 { .name = MT_CLS_DUAL_INRANGE_CONTACTID,
143 .quirks = MT_QUIRK_VALID_IS_INRANGE |
144 MT_QUIRK_SLOT_IS_CONTACTID,
145 .maxcontacts = 2 },
146 { .name = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
147 .quirks = MT_QUIRK_VALID_IS_INRANGE |
148 MT_QUIRK_SLOT_IS_CONTACTNUMBER,
149 .maxcontacts = 2 },
150 { .name = MT_CLS_DUAL_NSMU_CONTACTID,
151 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP |
152 MT_QUIRK_SLOT_IS_CONTACTID,
153 .maxcontacts = 2 },
154
155 /*
156 * vendor specific classes
157 */
158 { .name = MT_CLS_3M,
159 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE |
160 MT_QUIRK_SLOT_IS_CONTACTID,
161 .sn_move = 2048,
162 .sn_width = 128,
163 .sn_height = 128 },
164 { .name = MT_CLS_CYPRESS,
165 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP |
166 MT_QUIRK_CYPRESS,
167 .maxcontacts = 10 },
168 { .name = MT_CLS_EGALAX,
169 .quirks = MT_QUIRK_SLOT_IS_CONTACTID |
170 MT_QUIRK_VALID_IS_INRANGE |
171 MT_QUIRK_EGALAX_XYZ_FIXUP,
172 .maxcontacts = 2,
173 .sn_move = 4096,
174 .sn_pressure = 32,
175 },
176
177 { }
178 };
179
180 static void mt_feature_mapping(struct hid_device *hdev,
181 struct hid_field *field, struct hid_usage *usage)
182 {
183 struct mt_device *td = hid_get_drvdata(hdev);
184
185 switch (usage->hid) {
186 case HID_DG_INPUTMODE:
187 td->inputmode = field->report->id;
188 break;
189 case HID_DG_CONTACTMAX:
190 td->maxcontacts = field->value[0];
191 if (td->mtclass->maxcontacts)
192 /* check if the maxcontacts is given by the class */
193 td->maxcontacts = td->mtclass->maxcontacts;
194
195 break;
196 }
197 }
198
199 static void set_abs(struct input_dev *input, unsigned int code,
200 struct hid_field *field, int snratio)
201 {
202 int fmin = field->logical_minimum;
203 int fmax = field->logical_maximum;
204 int fuzz = snratio ? (fmax - fmin) / snratio : 0;
205 input_set_abs_params(input, code, fmin, fmax, fuzz, 0);
206 }
207
208 static int mt_input_mapping(struct hid_device *hdev, struct hid_input *hi,
209 struct hid_field *field, struct hid_usage *usage,
210 unsigned long **bit, int *max)
211 {
212 struct mt_device *td = hid_get_drvdata(hdev);
213 struct mt_class *cls = td->mtclass;
214 __s32 quirks = cls->quirks;
215
216 /* Only map fields from TouchScreen or TouchPad collections.
217 * We need to ignore fields that belong to other collections
218 * such as Mouse that might have the same GenericDesktop usages. */
219 if (field->application == HID_DG_TOUCHSCREEN)
220 set_bit(INPUT_PROP_DIRECT, hi->input->propbit);
221 else if (field->application == HID_DG_TOUCHPAD)
222 set_bit(INPUT_PROP_POINTER, hi->input->propbit);
223 else
224 return 0;
225
226 switch (usage->hid & HID_USAGE_PAGE) {
227
228 case HID_UP_GENDESK:
229 switch (usage->hid) {
230 case HID_GD_X:
231 if (quirks & MT_QUIRK_EGALAX_XYZ_FIXUP)
232 field->logical_maximum = 32760;
233 hid_map_usage(hi, usage, bit, max,
234 EV_ABS, ABS_MT_POSITION_X);
235 set_abs(hi->input, ABS_MT_POSITION_X, field,
236 cls->sn_move);
237 /* touchscreen emulation */
238 set_abs(hi->input, ABS_X, field, cls->sn_move);
239 if (td->last_mt_collection == usage->collection_index) {
240 td->last_slot_field = usage->hid;
241 td->last_field_index = field->index;
242 }
243 return 1;
244 case HID_GD_Y:
245 if (quirks & MT_QUIRK_EGALAX_XYZ_FIXUP)
246 field->logical_maximum = 32760;
247 hid_map_usage(hi, usage, bit, max,
248 EV_ABS, ABS_MT_POSITION_Y);
249 set_abs(hi->input, ABS_MT_POSITION_Y, field,
250 cls->sn_move);
251 /* touchscreen emulation */
252 set_abs(hi->input, ABS_Y, field, cls->sn_move);
253 if (td->last_mt_collection == usage->collection_index) {
254 td->last_slot_field = usage->hid;
255 td->last_field_index = field->index;
256 }
257 return 1;
258 }
259 return 0;
260
261 case HID_UP_DIGITIZER:
262 switch (usage->hid) {
263 case HID_DG_INRANGE:
264 if (td->last_mt_collection == usage->collection_index) {
265 td->last_slot_field = usage->hid;
266 td->last_field_index = field->index;
267 }
268 return 1;
269 case HID_DG_CONFIDENCE:
270 if (td->last_mt_collection == usage->collection_index) {
271 td->last_slot_field = usage->hid;
272 td->last_field_index = field->index;
273 }
274 return 1;
275 case HID_DG_TIPSWITCH:
276 hid_map_usage(hi, usage, bit, max, EV_KEY, BTN_TOUCH);
277 input_set_capability(hi->input, EV_KEY, BTN_TOUCH);
278 if (td->last_mt_collection == usage->collection_index) {
279 td->last_slot_field = usage->hid;
280 td->last_field_index = field->index;
281 }
282 return 1;
283 case HID_DG_CONTACTID:
284 if (!td->maxcontacts)
285 td->maxcontacts = MT_DEFAULT_MAXCONTACT;
286 input_mt_init_slots(hi->input, td->maxcontacts);
287 td->last_slot_field = usage->hid;
288 td->last_field_index = field->index;
289 td->last_mt_collection = usage->collection_index;
290 return 1;
291 case HID_DG_WIDTH:
292 hid_map_usage(hi, usage, bit, max,
293 EV_ABS, ABS_MT_TOUCH_MAJOR);
294 set_abs(hi->input, ABS_MT_TOUCH_MAJOR, field,
295 cls->sn_width);
296 if (td->last_mt_collection == usage->collection_index) {
297 td->last_slot_field = usage->hid;
298 td->last_field_index = field->index;
299 }
300 return 1;
301 case HID_DG_HEIGHT:
302 hid_map_usage(hi, usage, bit, max,
303 EV_ABS, ABS_MT_TOUCH_MINOR);
304 set_abs(hi->input, ABS_MT_TOUCH_MINOR, field,
305 cls->sn_height);
306 input_set_abs_params(hi->input,
307 ABS_MT_ORIENTATION, 0, 1, 0, 0);
308 if (td->last_mt_collection == usage->collection_index) {
309 td->last_slot_field = usage->hid;
310 td->last_field_index = field->index;
311 }
312 return 1;
313 case HID_DG_TIPPRESSURE:
314 if (quirks & MT_QUIRK_EGALAX_XYZ_FIXUP)
315 field->logical_minimum = 0;
316 hid_map_usage(hi, usage, bit, max,
317 EV_ABS, ABS_MT_PRESSURE);
318 set_abs(hi->input, ABS_MT_PRESSURE, field,
319 cls->sn_pressure);
320 /* touchscreen emulation */
321 set_abs(hi->input, ABS_PRESSURE, field,
322 cls->sn_pressure);
323 if (td->last_mt_collection == usage->collection_index) {
324 td->last_slot_field = usage->hid;
325 td->last_field_index = field->index;
326 }
327 return 1;
328 case HID_DG_CONTACTCOUNT:
329 if (td->last_mt_collection == usage->collection_index)
330 td->last_field_index = field->index;
331 return 1;
332 case HID_DG_CONTACTMAX:
333 /* we don't set td->last_slot_field as contactcount and
334 * contact max are global to the report */
335 if (td->last_mt_collection == usage->collection_index)
336 td->last_field_index = field->index;
337 return -1;
338 }
339 /* let hid-input decide for the others */
340 return 0;
341
342 case 0xff000000:
343 /* we do not want to map these: no input-oriented meaning */
344 return -1;
345 }
346
347 return 0;
348 }
349
350 static int mt_input_mapped(struct hid_device *hdev, struct hid_input *hi,
351 struct hid_field *field, struct hid_usage *usage,
352 unsigned long **bit, int *max)
353 {
354 if (usage->type == EV_KEY || usage->type == EV_ABS)
355 set_bit(usage->type, hi->input->evbit);
356
357 return -1;
358 }
359
360 static int mt_compute_slot(struct mt_device *td)
361 {
362 __s32 quirks = td->mtclass->quirks;
363
364 if (quirks & MT_QUIRK_SLOT_IS_CONTACTID)
365 return td->curdata.contactid;
366
367 if (quirks & MT_QUIRK_CYPRESS)
368 return cypress_compute_slot(td);
369
370 if (quirks & MT_QUIRK_SLOT_IS_CONTACTNUMBER)
371 return td->num_received;
372
373 if (quirks & MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE)
374 return td->curdata.contactid - 1;
375
376 return find_slot_from_contactid(td);
377 }
378
379 /*
380 * this function is called when a whole contact has been processed,
381 * so that it can assign it to a slot and store the data there
382 */
383 static void mt_complete_slot(struct mt_device *td)
384 {
385 td->curdata.seen_in_this_frame = true;
386 if (td->curvalid) {
387 int slotnum = mt_compute_slot(td);
388
389 if (slotnum >= 0 && slotnum < td->maxcontacts)
390 td->slots[slotnum] = td->curdata;
391 }
392 td->num_received++;
393 }
394
395
396 /*
397 * this function is called when a whole packet has been received and processed,
398 * so that it can decide what to send to the input layer.
399 */
400 static void mt_emit_event(struct mt_device *td, struct input_dev *input)
401 {
402 int i;
403
404 for (i = 0; i < td->maxcontacts; ++i) {
405 struct mt_slot *s = &(td->slots[i]);
406 if ((td->mtclass->quirks & MT_QUIRK_NOT_SEEN_MEANS_UP) &&
407 !s->seen_in_this_frame) {
408 s->touch_state = false;
409 }
410
411 input_mt_slot(input, i);
412 input_mt_report_slot_state(input, MT_TOOL_FINGER,
413 s->touch_state);
414 if (s->touch_state) {
415 /* this finger is on the screen */
416 int wide = (s->w > s->h);
417 /* divided by two to match visual scale of touch */
418 int major = max(s->w, s->h) >> 1;
419 int minor = min(s->w, s->h) >> 1;
420
421 input_event(input, EV_ABS, ABS_MT_POSITION_X, s->x);
422 input_event(input, EV_ABS, ABS_MT_POSITION_Y, s->y);
423 input_event(input, EV_ABS, ABS_MT_ORIENTATION, wide);
424 input_event(input, EV_ABS, ABS_MT_PRESSURE, s->p);
425 input_event(input, EV_ABS, ABS_MT_TOUCH_MAJOR, major);
426 input_event(input, EV_ABS, ABS_MT_TOUCH_MINOR, minor);
427 }
428 s->seen_in_this_frame = false;
429
430 }
431
432 input_mt_report_pointer_emulation(input, true);
433 input_sync(input);
434 td->num_received = 0;
435 }
436
437
438
439 static int mt_event(struct hid_device *hid, struct hid_field *field,
440 struct hid_usage *usage, __s32 value)
441 {
442 struct mt_device *td = hid_get_drvdata(hid);
443 __s32 quirks = td->mtclass->quirks;
444
445 if (hid->claimed & HID_CLAIMED_INPUT && td->slots) {
446 switch (usage->hid) {
447 case HID_DG_INRANGE:
448 if (quirks & MT_QUIRK_VALID_IS_INRANGE)
449 td->curvalid = value;
450 break;
451 case HID_DG_TIPSWITCH:
452 if (quirks & MT_QUIRK_NOT_SEEN_MEANS_UP)
453 td->curvalid = value;
454 td->curdata.touch_state = value;
455 break;
456 case HID_DG_CONFIDENCE:
457 if (quirks & MT_QUIRK_VALID_IS_CONFIDENCE)
458 td->curvalid = value;
459 break;
460 case HID_DG_CONTACTID:
461 td->curdata.contactid = value;
462 break;
463 case HID_DG_TIPPRESSURE:
464 td->curdata.p = value;
465 break;
466 case HID_GD_X:
467 td->curdata.x = value;
468 break;
469 case HID_GD_Y:
470 td->curdata.y = value;
471 break;
472 case HID_DG_WIDTH:
473 td->curdata.w = value;
474 break;
475 case HID_DG_HEIGHT:
476 td->curdata.h = value;
477 break;
478 case HID_DG_CONTACTCOUNT:
479 /*
480 * Includes multi-packet support where subsequent
481 * packets are sent with zero contactcount.
482 */
483 if (value)
484 td->num_expected = value;
485 break;
486
487 default:
488 /* fallback to the generic hidinput handling */
489 return 0;
490 }
491
492 if (usage->hid == td->last_slot_field) {
493 mt_complete_slot(td);
494 }
495
496 if (field->index == td->last_field_index
497 && td->num_received >= td->num_expected)
498 mt_emit_event(td, field->hidinput->input);
499
500 }
501
502 /* we have handled the hidinput part, now remains hiddev */
503 if (hid->claimed & HID_CLAIMED_HIDDEV && hid->hiddev_hid_event)
504 hid->hiddev_hid_event(hid, field, usage, value);
505
506 return 1;
507 }
508
509 static void mt_set_input_mode(struct hid_device *hdev)
510 {
511 struct mt_device *td = hid_get_drvdata(hdev);
512 struct hid_report *r;
513 struct hid_report_enum *re;
514
515 if (td->inputmode < 0)
516 return;
517
518 re = &(hdev->report_enum[HID_FEATURE_REPORT]);
519 r = re->report_id_hash[td->inputmode];
520 if (r) {
521 r->field[0]->value[0] = 0x02;
522 usbhid_submit_report(hdev, r, USB_DIR_OUT);
523 }
524 }
525
526 static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id)
527 {
528 int ret, i;
529 struct mt_device *td;
530 struct mt_class *mtclass = mt_classes; /* MT_CLS_DEFAULT */
531
532 for (i = 0; mt_classes[i].name ; i++) {
533 if (id->driver_data == mt_classes[i].name) {
534 mtclass = &(mt_classes[i]);
535 break;
536 }
537 }
538
539 /* This allows the driver to correctly support devices
540 * that emit events over several HID messages.
541 */
542 hdev->quirks |= HID_QUIRK_NO_INPUT_SYNC;
543
544 td = kzalloc(sizeof(struct mt_device), GFP_KERNEL);
545 if (!td) {
546 dev_err(&hdev->dev, "cannot allocate multitouch data\n");
547 return -ENOMEM;
548 }
549 td->mtclass = mtclass;
550 td->inputmode = -1;
551 td->last_mt_collection = -1;
552 hid_set_drvdata(hdev, td);
553
554 ret = hid_parse(hdev);
555 if (ret != 0)
556 goto fail;
557
558 ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
559 if (ret)
560 goto fail;
561
562 td->slots = kzalloc(td->maxcontacts * sizeof(struct mt_slot),
563 GFP_KERNEL);
564 if (!td->slots) {
565 dev_err(&hdev->dev, "cannot allocate multitouch slots\n");
566 hid_hw_stop(hdev);
567 ret = -ENOMEM;
568 goto fail;
569 }
570
571 mt_set_input_mode(hdev);
572
573 return 0;
574
575 fail:
576 kfree(td);
577 return ret;
578 }
579
580 #ifdef CONFIG_PM
581 static int mt_reset_resume(struct hid_device *hdev)
582 {
583 mt_set_input_mode(hdev);
584 return 0;
585 }
586 #endif
587
588 static void mt_remove(struct hid_device *hdev)
589 {
590 struct mt_device *td = hid_get_drvdata(hdev);
591 hid_hw_stop(hdev);
592 kfree(td->slots);
593 kfree(td);
594 hid_set_drvdata(hdev, NULL);
595 }
596
597 static const struct hid_device_id mt_devices[] = {
598
599 /* 3M panels */
600 { .driver_data = MT_CLS_3M,
601 HID_USB_DEVICE(USB_VENDOR_ID_3M,
602 USB_DEVICE_ID_3M1968) },
603 { .driver_data = MT_CLS_3M,
604 HID_USB_DEVICE(USB_VENDOR_ID_3M,
605 USB_DEVICE_ID_3M2256) },
606
607 /* ActionStar panels */
608 { .driver_data = MT_CLS_DEFAULT,
609 HID_USB_DEVICE(USB_VENDOR_ID_ACTIONSTAR,
610 USB_DEVICE_ID_ACTIONSTAR_1011) },
611
612 /* Cando panels */
613 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
614 HID_USB_DEVICE(USB_VENDOR_ID_CANDO,
615 USB_DEVICE_ID_CANDO_MULTI_TOUCH) },
616 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
617 HID_USB_DEVICE(USB_VENDOR_ID_CANDO,
618 USB_DEVICE_ID_CANDO_MULTI_TOUCH_10_1) },
619 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
620 HID_USB_DEVICE(USB_VENDOR_ID_CANDO,
621 USB_DEVICE_ID_CANDO_MULTI_TOUCH_11_6) },
622 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
623 HID_USB_DEVICE(USB_VENDOR_ID_CANDO,
624 USB_DEVICE_ID_CANDO_MULTI_TOUCH_15_6) },
625
626 /* Chunghwa Telecom touch panels */
627 { .driver_data = MT_CLS_DEFAULT,
628 HID_USB_DEVICE(USB_VENDOR_ID_CHUNGHWAT,
629 USB_DEVICE_ID_CHUNGHWAT_MULTITOUCH) },
630
631 /* CVTouch panels */
632 { .driver_data = MT_CLS_DEFAULT,
633 HID_USB_DEVICE(USB_VENDOR_ID_CVTOUCH,
634 USB_DEVICE_ID_CVTOUCH_SCREEN) },
635
636 /* Cypress panel */
637 { .driver_data = MT_CLS_CYPRESS,
638 HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS,
639 USB_DEVICE_ID_CYPRESS_TRUETOUCH) },
640
641 /* eGalax devices (resistive) */
642 { .driver_data = MT_CLS_EGALAX,
643 HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
644 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH) },
645 { .driver_data = MT_CLS_EGALAX,
646 HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
647 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH3) },
648
649 /* eGalax devices (capacitive) */
650 { .driver_data = MT_CLS_EGALAX,
651 HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
652 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH1) },
653 { .driver_data = MT_CLS_EGALAX,
654 HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
655 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH2) },
656 { .driver_data = MT_CLS_EGALAX,
657 HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
658 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH4) },
659
660 /* Elo TouchSystems IntelliTouch Plus panel */
661 { .driver_data = MT_CLS_DUAL_NSMU_CONTACTID,
662 HID_USB_DEVICE(USB_VENDOR_ID_ELO,
663 USB_DEVICE_ID_ELO_TS2515) },
664
665 /* GeneralTouch panel */
666 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
667 HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
668 USB_DEVICE_ID_GENERAL_TOUCH_WIN7_TWOFINGERS) },
669
670 /* GoodTouch panels */
671 { .driver_data = MT_CLS_DEFAULT,
672 HID_USB_DEVICE(USB_VENDOR_ID_GOODTOUCH,
673 USB_DEVICE_ID_GOODTOUCH_000f) },
674
675 /* Ilitek dual touch panel */
676 { .driver_data = MT_CLS_DEFAULT,
677 HID_USB_DEVICE(USB_VENDOR_ID_ILITEK,
678 USB_DEVICE_ID_ILITEK_MULTITOUCH) },
679
680 /* IRTOUCH panels */
681 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID,
682 HID_USB_DEVICE(USB_VENDOR_ID_IRTOUCHSYSTEMS,
683 USB_DEVICE_ID_IRTOUCH_INFRARED_USB) },
684
685 /* LG Display panels */
686 { .driver_data = MT_CLS_DEFAULT,
687 HID_USB_DEVICE(USB_VENDOR_ID_LG,
688 USB_DEVICE_ID_LG_MULTITOUCH) },
689
690 /* Lumio panels */
691 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
692 HID_USB_DEVICE(USB_VENDOR_ID_LUMIO,
693 USB_DEVICE_ID_CRYSTALTOUCH) },
694 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
695 HID_USB_DEVICE(USB_VENDOR_ID_LUMIO,
696 USB_DEVICE_ID_CRYSTALTOUCH_DUAL) },
697
698 /* MosArt panels */
699 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
700 HID_USB_DEVICE(USB_VENDOR_ID_ASUS,
701 USB_DEVICE_ID_ASUS_T91MT)},
702 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
703 HID_USB_DEVICE(USB_VENDOR_ID_ASUS,
704 USB_DEVICE_ID_ASUSTEK_MULTITOUCH_YFO) },
705 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
706 HID_USB_DEVICE(USB_VENDOR_ID_TURBOX,
707 USB_DEVICE_ID_TURBOX_TOUCHSCREEN_MOSART) },
708
709 /* PenMount panels */
710 { .driver_data = MT_CLS_CONFIDENCE,
711 HID_USB_DEVICE(USB_VENDOR_ID_PENMOUNT,
712 USB_DEVICE_ID_PENMOUNT_PCI) },
713
714 /* PixCir-based panels */
715 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID,
716 HID_USB_DEVICE(USB_VENDOR_ID_HANVON,
717 USB_DEVICE_ID_HANVON_MULTITOUCH) },
718 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID,
719 HID_USB_DEVICE(USB_VENDOR_ID_CANDO,
720 USB_DEVICE_ID_CANDO_PIXCIR_MULTI_TOUCH) },
721
722 /* Stantum panels */
723 { .driver_data = MT_CLS_CONFIDENCE,
724 HID_USB_DEVICE(USB_VENDOR_ID_STANTUM,
725 USB_DEVICE_ID_MTP)},
726 { .driver_data = MT_CLS_CONFIDENCE,
727 HID_USB_DEVICE(USB_VENDOR_ID_STANTUM_STM,
728 USB_DEVICE_ID_MTP_STM)},
729 { .driver_data = MT_CLS_CONFIDENCE,
730 HID_USB_DEVICE(USB_VENDOR_ID_STANTUM_SITRONIX,
731 USB_DEVICE_ID_MTP_SITRONIX)},
732
733 /* Touch International panels */
734 { .driver_data = MT_CLS_DEFAULT,
735 HID_USB_DEVICE(USB_VENDOR_ID_TOUCH_INTL,
736 USB_DEVICE_ID_TOUCH_INTL_MULTI_TOUCH) },
737
738 /* Unitec panels */
739 { .driver_data = MT_CLS_DEFAULT,
740 HID_USB_DEVICE(USB_VENDOR_ID_UNITEC,
741 USB_DEVICE_ID_UNITEC_USB_TOUCH_0709) },
742 { .driver_data = MT_CLS_DEFAULT,
743 HID_USB_DEVICE(USB_VENDOR_ID_UNITEC,
744 USB_DEVICE_ID_UNITEC_USB_TOUCH_0A19) },
745 /* XAT */
746 { .driver_data = MT_CLS_DEFAULT,
747 HID_USB_DEVICE(USB_VENDOR_ID_XAT,
748 USB_DEVICE_ID_XAT_CSR) },
749
750 { }
751 };
752 MODULE_DEVICE_TABLE(hid, mt_devices);
753
754 static const struct hid_usage_id mt_grabbed_usages[] = {
755 { HID_ANY_ID, HID_ANY_ID, HID_ANY_ID },
756 { HID_ANY_ID - 1, HID_ANY_ID - 1, HID_ANY_ID - 1}
757 };
758
759 static struct hid_driver mt_driver = {
760 .name = "hid-multitouch",
761 .id_table = mt_devices,
762 .probe = mt_probe,
763 .remove = mt_remove,
764 .input_mapping = mt_input_mapping,
765 .input_mapped = mt_input_mapped,
766 .feature_mapping = mt_feature_mapping,
767 .usage_table = mt_grabbed_usages,
768 .event = mt_event,
769 #ifdef CONFIG_PM
770 .reset_resume = mt_reset_resume,
771 #endif
772 };
773
774 static int __init mt_init(void)
775 {
776 return hid_register_driver(&mt_driver);
777 }
778
779 static void __exit mt_exit(void)
780 {
781 hid_unregister_driver(&mt_driver);
782 }
783
784 module_init(mt_init);
785 module_exit(mt_exit);
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