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nilfs2: unbreak compat ioctl
[zen-stable.git] / drivers / hid / hid-multitouch.c
blobf1c909f1b23998f91d9b7b76d8cf31e53f65aadd
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_ALWAYS_VALID (1 << 4)
51 #define MT_QUIRK_VALID_IS_INRANGE (1 << 5)
52 #define MT_QUIRK_VALID_IS_CONFIDENCE (1 << 6)
53 #define MT_QUIRK_EGALAX_XYZ_FIXUP (1 << 7)
54 #define MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE (1 << 8)
55
56 struct mt_slot {
57 __s32 x, y, p, w, h;
58 __s32 contactid; /* the device ContactID assigned to this slot */
59 bool touch_state; /* is the touch valid? */
60 bool seen_in_this_frame;/* has this slot been updated */
61 };
62
63 struct mt_device {
64 struct mt_slot curdata; /* placeholder of incoming data */
65 struct mt_class *mtclass; /* our mt device class */
66 unsigned last_field_index; /* last field index of the report */
67 unsigned last_slot_field; /* the last field of a slot */
68 int last_mt_collection; /* last known mt-related collection */
69 __s8 inputmode; /* InputMode HID feature, -1 if non-existent */
70 __u8 num_received; /* how many contacts we received */
71 __u8 num_expected; /* expected last contact index */
72 __u8 maxcontacts;
73 bool curvalid; /* is the current contact valid? */
74 struct mt_slot *slots;
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 };
86
87 /* classes of device behavior */
88 #define MT_CLS_DEFAULT 0x0001
89
90 #define MT_CLS_SERIAL 0x0002
91 #define MT_CLS_CONFIDENCE 0x0003
92 #define MT_CLS_CONFIDENCE_MINUS_ONE 0x0004
93 #define MT_CLS_DUAL_INRANGE_CONTACTID 0x0005
94 #define MT_CLS_DUAL_INRANGE_CONTACTNUMBER 0x0006
95 #define MT_CLS_DUAL_NSMU_CONTACTID 0x0007
96
97 /* vendor specific classes */
98 #define MT_CLS_3M 0x0101
99 #define MT_CLS_CYPRESS 0x0102
100 #define MT_CLS_EGALAX 0x0103
101
102 #define MT_DEFAULT_MAXCONTACT 10
103
104 /*
105 * these device-dependent functions determine what slot corresponds
106 * to a valid contact that was just read.
107 */
108
109 static int cypress_compute_slot(struct mt_device *td)
110 {
111 if (td->curdata.contactid != 0 || td->num_received == 0)
112 return td->curdata.contactid;
113 else
114 return -1;
115 }
116
117 static int find_slot_from_contactid(struct mt_device *td)
118 {
119 int i;
120 for (i = 0; i < td->maxcontacts; ++i) {
121 if (td->slots[i].contactid == td->curdata.contactid &&
122 td->slots[i].touch_state)
123 return i;
124 }
125 for (i = 0; i < td->maxcontacts; ++i) {
126 if (!td->slots[i].seen_in_this_frame &&
127 !td->slots[i].touch_state)
128 return i;
129 }
130 /* should not occurs. If this happens that means
131 * that the device sent more touches that it says
132 * in the report descriptor. It is ignored then. */
133 return -1;
134 }
135
136 struct mt_class mt_classes[] = {
137 { .name = MT_CLS_DEFAULT,
138 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP },
139 { .name = MT_CLS_SERIAL,
140 .quirks = MT_QUIRK_ALWAYS_VALID},
141 { .name = MT_CLS_CONFIDENCE,
142 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE },
143 { .name = MT_CLS_CONFIDENCE_MINUS_ONE,
144 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE |
145 MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE },
146 { .name = MT_CLS_DUAL_INRANGE_CONTACTID,
147 .quirks = MT_QUIRK_VALID_IS_INRANGE |
148 MT_QUIRK_SLOT_IS_CONTACTID,
149 .maxcontacts = 2 },
150 { .name = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
151 .quirks = MT_QUIRK_VALID_IS_INRANGE |
152 MT_QUIRK_SLOT_IS_CONTACTNUMBER,
153 .maxcontacts = 2 },
154 { .name = MT_CLS_DUAL_NSMU_CONTACTID,
155 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP |
156 MT_QUIRK_SLOT_IS_CONTACTID,
157 .maxcontacts = 2 },
158
159 /*
160 * vendor specific classes
161 */
162 { .name = MT_CLS_3M,
163 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE |
164 MT_QUIRK_SLOT_IS_CONTACTID,
165 .sn_move = 2048,
166 .sn_width = 128,
167 .sn_height = 128 },
168 { .name = MT_CLS_CYPRESS,
169 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP |
170 MT_QUIRK_CYPRESS,
171 .maxcontacts = 10 },
172 { .name = MT_CLS_EGALAX,
173 .quirks = MT_QUIRK_SLOT_IS_CONTACTID |
174 MT_QUIRK_VALID_IS_INRANGE |
175 MT_QUIRK_EGALAX_XYZ_FIXUP,
176 .maxcontacts = 2,
177 .sn_move = 4096,
178 .sn_pressure = 32,
179 },
180
181 { }
182 };
183
184 static void mt_feature_mapping(struct hid_device *hdev,
185 struct hid_field *field, struct hid_usage *usage)
186 {
187 struct mt_device *td = hid_get_drvdata(hdev);
188
189 switch (usage->hid) {
190 case HID_DG_INPUTMODE:
191 td->inputmode = field->report->id;
192 break;
193 case HID_DG_CONTACTMAX:
194 td->maxcontacts = field->value[0];
195 if (td->mtclass->maxcontacts)
196 /* check if the maxcontacts is given by the class */
197 td->maxcontacts = td->mtclass->maxcontacts;
198
199 break;
200 }
201 }
202
203 static void set_abs(struct input_dev *input, unsigned int code,
204 struct hid_field *field, int snratio)
205 {
206 int fmin = field->logical_minimum;
207 int fmax = field->logical_maximum;
208 int fuzz = snratio ? (fmax - fmin) / snratio : 0;
209 input_set_abs_params(input, code, fmin, fmax, fuzz, 0);
210 }
211
212 static int mt_input_mapping(struct hid_device *hdev, struct hid_input *hi,
213 struct hid_field *field, struct hid_usage *usage,
214 unsigned long **bit, int *max)
215 {
216 struct mt_device *td = hid_get_drvdata(hdev);
217 struct mt_class *cls = td->mtclass;
218 __s32 quirks = cls->quirks;
219
220 /* Only map fields from TouchScreen or TouchPad collections.
221 * We need to ignore fields that belong to other collections
222 * such as Mouse that might have the same GenericDesktop usages. */
223 if (field->application == HID_DG_TOUCHSCREEN)
224 set_bit(INPUT_PROP_DIRECT, hi->input->propbit);
225 else if (field->application == HID_DG_TOUCHPAD)
226 set_bit(INPUT_PROP_POINTER, hi->input->propbit);
227 else
228 return 0;
229
230 switch (usage->hid & HID_USAGE_PAGE) {
231
232 case HID_UP_GENDESK:
233 switch (usage->hid) {
234 case HID_GD_X:
235 if (quirks & MT_QUIRK_EGALAX_XYZ_FIXUP)
236 field->logical_maximum = 32760;
237 hid_map_usage(hi, usage, bit, max,
238 EV_ABS, ABS_MT_POSITION_X);
239 set_abs(hi->input, ABS_MT_POSITION_X, field,
240 cls->sn_move);
241 /* touchscreen emulation */
242 set_abs(hi->input, ABS_X, field, cls->sn_move);
243 if (td->last_mt_collection == usage->collection_index) {
244 td->last_slot_field = usage->hid;
245 td->last_field_index = field->index;
246 }
247 return 1;
248 case HID_GD_Y:
249 if (quirks & MT_QUIRK_EGALAX_XYZ_FIXUP)
250 field->logical_maximum = 32760;
251 hid_map_usage(hi, usage, bit, max,
252 EV_ABS, ABS_MT_POSITION_Y);
253 set_abs(hi->input, ABS_MT_POSITION_Y, field,
254 cls->sn_move);
255 /* touchscreen emulation */
256 set_abs(hi->input, ABS_Y, field, cls->sn_move);
257 if (td->last_mt_collection == usage->collection_index) {
258 td->last_slot_field = usage->hid;
259 td->last_field_index = field->index;
260 }
261 return 1;
262 }
263 return 0;
264
265 case HID_UP_DIGITIZER:
266 switch (usage->hid) {
267 case HID_DG_INRANGE:
268 if (td->last_mt_collection == usage->collection_index) {
269 td->last_slot_field = usage->hid;
270 td->last_field_index = field->index;
271 }
272 return 1;
273 case HID_DG_CONFIDENCE:
274 if (td->last_mt_collection == usage->collection_index) {
275 td->last_slot_field = usage->hid;
276 td->last_field_index = field->index;
277 }
278 return 1;
279 case HID_DG_TIPSWITCH:
280 hid_map_usage(hi, usage, bit, max, EV_KEY, BTN_TOUCH);
281 input_set_capability(hi->input, EV_KEY, BTN_TOUCH);
282 if (td->last_mt_collection == usage->collection_index) {
283 td->last_slot_field = usage->hid;
284 td->last_field_index = field->index;
285 }
286 return 1;
287 case HID_DG_CONTACTID:
288 if (!td->maxcontacts)
289 td->maxcontacts = MT_DEFAULT_MAXCONTACT;
290 input_mt_init_slots(hi->input, td->maxcontacts);
291 td->last_slot_field = usage->hid;
292 td->last_field_index = field->index;
293 td->last_mt_collection = usage->collection_index;
294 return 1;
295 case HID_DG_WIDTH:
296 hid_map_usage(hi, usage, bit, max,
297 EV_ABS, ABS_MT_TOUCH_MAJOR);
298 set_abs(hi->input, ABS_MT_TOUCH_MAJOR, field,
299 cls->sn_width);
300 if (td->last_mt_collection == usage->collection_index) {
301 td->last_slot_field = usage->hid;
302 td->last_field_index = field->index;
303 }
304 return 1;
305 case HID_DG_HEIGHT:
306 hid_map_usage(hi, usage, bit, max,
307 EV_ABS, ABS_MT_TOUCH_MINOR);
308 set_abs(hi->input, ABS_MT_TOUCH_MINOR, field,
309 cls->sn_height);
310 input_set_abs_params(hi->input,
311 ABS_MT_ORIENTATION, 0, 1, 0, 0);
312 if (td->last_mt_collection == usage->collection_index) {
313 td->last_slot_field = usage->hid;
314 td->last_field_index = field->index;
315 }
316 return 1;
317 case HID_DG_TIPPRESSURE:
318 if (quirks & MT_QUIRK_EGALAX_XYZ_FIXUP)
319 field->logical_minimum = 0;
320 hid_map_usage(hi, usage, bit, max,
321 EV_ABS, ABS_MT_PRESSURE);
322 set_abs(hi->input, ABS_MT_PRESSURE, field,
323 cls->sn_pressure);
324 /* touchscreen emulation */
325 set_abs(hi->input, ABS_PRESSURE, field,
326 cls->sn_pressure);
327 if (td->last_mt_collection == usage->collection_index) {
328 td->last_slot_field = usage->hid;
329 td->last_field_index = field->index;
330 }
331 return 1;
332 case HID_DG_CONTACTCOUNT:
333 if (td->last_mt_collection == usage->collection_index)
334 td->last_field_index = field->index;
335 return 1;
336 case HID_DG_CONTACTMAX:
337 /* we don't set td->last_slot_field as contactcount and
338 * contact max are global to the report */
339 if (td->last_mt_collection == usage->collection_index)
340 td->last_field_index = field->index;
341 return -1;
342 }
343 /* let hid-input decide for the others */
344 return 0;
345
346 case 0xff000000:
347 /* we do not want to map these: no input-oriented meaning */
348 return -1;
349 }
350
351 return 0;
352 }
353
354 static int mt_input_mapped(struct hid_device *hdev, struct hid_input *hi,
355 struct hid_field *field, struct hid_usage *usage,
356 unsigned long **bit, int *max)
357 {
358 if (usage->type == EV_KEY || usage->type == EV_ABS)
359 set_bit(usage->type, hi->input->evbit);
360
361 return -1;
362 }
363
364 static int mt_compute_slot(struct mt_device *td)
365 {
366 __s32 quirks = td->mtclass->quirks;
367
368 if (quirks & MT_QUIRK_SLOT_IS_CONTACTID)
369 return td->curdata.contactid;
370
371 if (quirks & MT_QUIRK_CYPRESS)
372 return cypress_compute_slot(td);
373
374 if (quirks & MT_QUIRK_SLOT_IS_CONTACTNUMBER)
375 return td->num_received;
376
377 if (quirks & MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE)
378 return td->curdata.contactid - 1;
379
380 return find_slot_from_contactid(td);
381 }
382
383 /*
384 * this function is called when a whole contact has been processed,
385 * so that it can assign it to a slot and store the data there
386 */
387 static void mt_complete_slot(struct mt_device *td)
388 {
389 td->curdata.seen_in_this_frame = true;
390 if (td->curvalid) {
391 int slotnum = mt_compute_slot(td);
392
393 if (slotnum >= 0 && slotnum < td->maxcontacts)
394 td->slots[slotnum] = td->curdata;
395 }
396 td->num_received++;
397 }
398
399
400 /*
401 * this function is called when a whole packet has been received and processed,
402 * so that it can decide what to send to the input layer.
403 */
404 static void mt_emit_event(struct mt_device *td, struct input_dev *input)
405 {
406 int i;
407
408 for (i = 0; i < td->maxcontacts; ++i) {
409 struct mt_slot *s = &(td->slots[i]);
410 if ((td->mtclass->quirks & MT_QUIRK_NOT_SEEN_MEANS_UP) &&
411 !s->seen_in_this_frame) {
412 s->touch_state = false;
413 }
414
415 input_mt_slot(input, i);
416 input_mt_report_slot_state(input, MT_TOOL_FINGER,
417 s->touch_state);
418 if (s->touch_state) {
419 /* this finger is on the screen */
420 int wide = (s->w > s->h);
421 /* divided by two to match visual scale of touch */
422 int major = max(s->w, s->h) >> 1;
423 int minor = min(s->w, s->h) >> 1;
424
425 input_event(input, EV_ABS, ABS_MT_POSITION_X, s->x);
426 input_event(input, EV_ABS, ABS_MT_POSITION_Y, s->y);
427 input_event(input, EV_ABS, ABS_MT_ORIENTATION, wide);
428 input_event(input, EV_ABS, ABS_MT_PRESSURE, s->p);
429 input_event(input, EV_ABS, ABS_MT_TOUCH_MAJOR, major);
430 input_event(input, EV_ABS, ABS_MT_TOUCH_MINOR, minor);
431 }
432 s->seen_in_this_frame = false;
433
434 }
435
436 input_mt_report_pointer_emulation(input, true);
437 input_sync(input);
438 td->num_received = 0;
439 }
440
441
442
443 static int mt_event(struct hid_device *hid, struct hid_field *field,
444 struct hid_usage *usage, __s32 value)
445 {
446 struct mt_device *td = hid_get_drvdata(hid);
447 __s32 quirks = td->mtclass->quirks;
448
449 if (hid->claimed & HID_CLAIMED_INPUT && td->slots) {
450 switch (usage->hid) {
451 case HID_DG_INRANGE:
452 if (quirks & MT_QUIRK_ALWAYS_VALID)
453 td->curvalid = true;
454 else if (quirks & MT_QUIRK_VALID_IS_INRANGE)
455 td->curvalid = value;
456 break;
457 case HID_DG_TIPSWITCH:
458 if (quirks & MT_QUIRK_NOT_SEEN_MEANS_UP)
459 td->curvalid = value;
460 td->curdata.touch_state = value;
461 break;
462 case HID_DG_CONFIDENCE:
463 if (quirks & MT_QUIRK_VALID_IS_CONFIDENCE)
464 td->curvalid = value;
465 break;
466 case HID_DG_CONTACTID:
467 td->curdata.contactid = value;
468 break;
469 case HID_DG_TIPPRESSURE:
470 td->curdata.p = value;
471 break;
472 case HID_GD_X:
473 td->curdata.x = value;
474 break;
475 case HID_GD_Y:
476 td->curdata.y = value;
477 break;
478 case HID_DG_WIDTH:
479 td->curdata.w = value;
480 break;
481 case HID_DG_HEIGHT:
482 td->curdata.h = value;
483 break;
484 case HID_DG_CONTACTCOUNT:
485 /*
486 * Includes multi-packet support where subsequent
487 * packets are sent with zero contactcount.
488 */
489 if (value)
490 td->num_expected = value;
491 break;
492
493 default:
494 /* fallback to the generic hidinput handling */
495 return 0;
496 }
497
498 if (usage->hid == td->last_slot_field) {
499 mt_complete_slot(td);
500 }
501
502 if (field->index == td->last_field_index
503 && td->num_received >= td->num_expected)
504 mt_emit_event(td, field->hidinput->input);
505
506 }
507
508 /* we have handled the hidinput part, now remains hiddev */
509 if (hid->claimed & HID_CLAIMED_HIDDEV && hid->hiddev_hid_event)
510 hid->hiddev_hid_event(hid, field, usage, value);
511
512 return 1;
513 }
514
515 static void mt_set_input_mode(struct hid_device *hdev)
516 {
517 struct mt_device *td = hid_get_drvdata(hdev);
518 struct hid_report *r;
519 struct hid_report_enum *re;
520
521 if (td->inputmode < 0)
522 return;
523
524 re = &(hdev->report_enum[HID_FEATURE_REPORT]);
525 r = re->report_id_hash[td->inputmode];
526 if (r) {
527 r->field[0]->value[0] = 0x02;
528 usbhid_submit_report(hdev, r, USB_DIR_OUT);
529 }
530 }
531
532 static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id)
533 {
534 int ret, i;
535 struct mt_device *td;
536 struct mt_class *mtclass = mt_classes; /* MT_CLS_DEFAULT */
537
538 for (i = 0; mt_classes[i].name ; i++) {
539 if (id->driver_data == mt_classes[i].name) {
540 mtclass = &(mt_classes[i]);
541 break;
542 }
543 }
544
545 /* This allows the driver to correctly support devices
546 * that emit events over several HID messages.
547 */
548 hdev->quirks |= HID_QUIRK_NO_INPUT_SYNC;
549
550 td = kzalloc(sizeof(struct mt_device), GFP_KERNEL);
551 if (!td) {
552 dev_err(&hdev->dev, "cannot allocate multitouch data\n");
553 return -ENOMEM;
554 }
555 td->mtclass = mtclass;
556 td->inputmode = -1;
557 td->last_mt_collection = -1;
558 hid_set_drvdata(hdev, td);
559
560 ret = hid_parse(hdev);
561 if (ret != 0)
562 goto fail;
563
564 ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
565 if (ret)
566 goto fail;
567
568 td->slots = kzalloc(td->maxcontacts * sizeof(struct mt_slot),
569 GFP_KERNEL);
570 if (!td->slots) {
571 dev_err(&hdev->dev, "cannot allocate multitouch slots\n");
572 hid_hw_stop(hdev);
573 ret = -ENOMEM;
574 goto fail;
575 }
576
577 mt_set_input_mode(hdev);
578
579 return 0;
580
581 fail:
582 kfree(td);
583 return ret;
584 }
585
586 #ifdef CONFIG_PM
587 static int mt_reset_resume(struct hid_device *hdev)
588 {
589 mt_set_input_mode(hdev);
590 return 0;
591 }
592 #endif
593
594 static void mt_remove(struct hid_device *hdev)
595 {
596 struct mt_device *td = hid_get_drvdata(hdev);
597 hid_hw_stop(hdev);
598 kfree(td->slots);
599 kfree(td);
600 hid_set_drvdata(hdev, NULL);
601 }
602
603 static const struct hid_device_id mt_devices[] = {
604
605 /* 3M panels */
606 { .driver_data = MT_CLS_3M,
607 HID_USB_DEVICE(USB_VENDOR_ID_3M,
608 USB_DEVICE_ID_3M1968) },
609 { .driver_data = MT_CLS_3M,
610 HID_USB_DEVICE(USB_VENDOR_ID_3M,
611 USB_DEVICE_ID_3M2256) },
612
613 /* ActionStar panels */
614 { .driver_data = MT_CLS_DEFAULT,
615 HID_USB_DEVICE(USB_VENDOR_ID_ACTIONSTAR,
616 USB_DEVICE_ID_ACTIONSTAR_1011) },
617
618 /* Cando panels */
619 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
620 HID_USB_DEVICE(USB_VENDOR_ID_CANDO,
621 USB_DEVICE_ID_CANDO_MULTI_TOUCH) },
622 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
623 HID_USB_DEVICE(USB_VENDOR_ID_CANDO,
624 USB_DEVICE_ID_CANDO_MULTI_TOUCH_10_1) },
625 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
626 HID_USB_DEVICE(USB_VENDOR_ID_CANDO,
627 USB_DEVICE_ID_CANDO_MULTI_TOUCH_11_6) },
628 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
629 HID_USB_DEVICE(USB_VENDOR_ID_CANDO,
630 USB_DEVICE_ID_CANDO_MULTI_TOUCH_15_6) },
631
632 /* Chunghwa Telecom touch panels */
633 { .driver_data = MT_CLS_DEFAULT,
634 HID_USB_DEVICE(USB_VENDOR_ID_CHUNGHWAT,
635 USB_DEVICE_ID_CHUNGHWAT_MULTITOUCH) },
636
637 /* CVTouch panels */
638 { .driver_data = MT_CLS_DEFAULT,
639 HID_USB_DEVICE(USB_VENDOR_ID_CVTOUCH,
640 USB_DEVICE_ID_CVTOUCH_SCREEN) },
641
642 /* Cypress panel */
643 { .driver_data = MT_CLS_CYPRESS,
644 HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS,
645 USB_DEVICE_ID_CYPRESS_TRUETOUCH) },
646
647 /* eGalax devices (resistive) */
648 { .driver_data = MT_CLS_EGALAX,
649 HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
650 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH) },
651 { .driver_data = MT_CLS_EGALAX,
652 HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
653 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH3) },
654
655 /* eGalax devices (capacitive) */
656 { .driver_data = MT_CLS_EGALAX,
657 HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
658 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH1) },
659 { .driver_data = MT_CLS_EGALAX,
660 HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
661 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH2) },
662 { .driver_data = MT_CLS_EGALAX,
663 HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
664 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH4) },
665
666 /* Elo TouchSystems IntelliTouch Plus panel */
667 { .driver_data = MT_CLS_DUAL_NSMU_CONTACTID,
668 HID_USB_DEVICE(USB_VENDOR_ID_ELO,
669 USB_DEVICE_ID_ELO_TS2515) },
670
671 /* GeneralTouch panel */
672 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
673 HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
674 USB_DEVICE_ID_GENERAL_TOUCH_WIN7_TWOFINGERS) },
675
676 /* GoodTouch panels */
677 { .driver_data = MT_CLS_DEFAULT,
678 HID_USB_DEVICE(USB_VENDOR_ID_GOODTOUCH,
679 USB_DEVICE_ID_GOODTOUCH_000f) },
680
681 /* Ideacom panel */
682 { .driver_data = MT_CLS_SERIAL,
683 HID_USB_DEVICE(USB_VENDOR_ID_IDEACOM,
684 USB_DEVICE_ID_IDEACOM_IDC6650) },
685
686 /* Ilitek dual touch panel */
687 { .driver_data = MT_CLS_DEFAULT,
688 HID_USB_DEVICE(USB_VENDOR_ID_ILITEK,
689 USB_DEVICE_ID_ILITEK_MULTITOUCH) },
690
691 /* IRTOUCH panels */
692 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID,
693 HID_USB_DEVICE(USB_VENDOR_ID_IRTOUCHSYSTEMS,
694 USB_DEVICE_ID_IRTOUCH_INFRARED_USB) },
695
696 /* LG Display panels */
697 { .driver_data = MT_CLS_DEFAULT,
698 HID_USB_DEVICE(USB_VENDOR_ID_LG,
699 USB_DEVICE_ID_LG_MULTITOUCH) },
700
701 /* Lumio panels */
702 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
703 HID_USB_DEVICE(USB_VENDOR_ID_LUMIO,
704 USB_DEVICE_ID_CRYSTALTOUCH) },
705 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
706 HID_USB_DEVICE(USB_VENDOR_ID_LUMIO,
707 USB_DEVICE_ID_CRYSTALTOUCH_DUAL) },
708
709 /* MosArt panels */
710 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
711 HID_USB_DEVICE(USB_VENDOR_ID_ASUS,
712 USB_DEVICE_ID_ASUS_T91MT)},
713 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
714 HID_USB_DEVICE(USB_VENDOR_ID_ASUS,
715 USB_DEVICE_ID_ASUSTEK_MULTITOUCH_YFO) },
716 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
717 HID_USB_DEVICE(USB_VENDOR_ID_TURBOX,
718 USB_DEVICE_ID_TURBOX_TOUCHSCREEN_MOSART) },
719
720 /* PenMount panels */
721 { .driver_data = MT_CLS_CONFIDENCE,
722 HID_USB_DEVICE(USB_VENDOR_ID_PENMOUNT,
723 USB_DEVICE_ID_PENMOUNT_PCI) },
724
725 /* PixCir-based panels */
726 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID,
727 HID_USB_DEVICE(USB_VENDOR_ID_HANVON,
728 USB_DEVICE_ID_HANVON_MULTITOUCH) },
729 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID,
730 HID_USB_DEVICE(USB_VENDOR_ID_CANDO,
731 USB_DEVICE_ID_CANDO_PIXCIR_MULTI_TOUCH) },
732
733 /* Stantum panels */
734 { .driver_data = MT_CLS_CONFIDENCE,
735 HID_USB_DEVICE(USB_VENDOR_ID_STANTUM,
736 USB_DEVICE_ID_MTP)},
737 { .driver_data = MT_CLS_CONFIDENCE,
738 HID_USB_DEVICE(USB_VENDOR_ID_STANTUM_STM,
739 USB_DEVICE_ID_MTP_STM)},
740 { .driver_data = MT_CLS_CONFIDENCE,
741 HID_USB_DEVICE(USB_VENDOR_ID_STANTUM_SITRONIX,
742 USB_DEVICE_ID_MTP_SITRONIX)},
743
744 /* Touch International panels */
745 { .driver_data = MT_CLS_DEFAULT,
746 HID_USB_DEVICE(USB_VENDOR_ID_TOUCH_INTL,
747 USB_DEVICE_ID_TOUCH_INTL_MULTI_TOUCH) },
748
749 /* Unitec panels */
750 { .driver_data = MT_CLS_DEFAULT,
751 HID_USB_DEVICE(USB_VENDOR_ID_UNITEC,
752 USB_DEVICE_ID_UNITEC_USB_TOUCH_0709) },
753 { .driver_data = MT_CLS_DEFAULT,
754 HID_USB_DEVICE(USB_VENDOR_ID_UNITEC,
755 USB_DEVICE_ID_UNITEC_USB_TOUCH_0A19) },
756 /* XAT */
757 { .driver_data = MT_CLS_DEFAULT,
758 HID_USB_DEVICE(USB_VENDOR_ID_XAT,
759 USB_DEVICE_ID_XAT_CSR) },
760
761 { }
762 };
763 MODULE_DEVICE_TABLE(hid, mt_devices);
764
765 static const struct hid_usage_id mt_grabbed_usages[] = {
766 { HID_ANY_ID, HID_ANY_ID, HID_ANY_ID },
767 { HID_ANY_ID - 1, HID_ANY_ID - 1, HID_ANY_ID - 1}
768 };
769
770 static struct hid_driver mt_driver = {
771 .name = "hid-multitouch",
772 .id_table = mt_devices,
773 .probe = mt_probe,
774 .remove = mt_remove,
775 .input_mapping = mt_input_mapping,
776 .input_mapped = mt_input_mapped,
777 .feature_mapping = mt_feature_mapping,
778 .usage_table = mt_grabbed_usages,
779 .event = mt_event,
780 #ifdef CONFIG_PM
781 .reset_resume = mt_reset_resume,
782 #endif
783 };
784
785 static int __init mt_init(void)
786 {
787 return hid_register_driver(&mt_driver);
788 }
789
790 static void __exit mt_exit(void)
791 {
792 hid_unregister_driver(&mt_driver);
793 }
794
795 module_init(mt_init);
796 module_exit(mt_exit);