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HID: remove 2 unused usb.h includes
[deliverable/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/input/mt.h>
46 #include <linux/string.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 #define MT_QUIRK_FORCE_GET_FEATURE (1 << 13)
70
71 #define MT_INPUTMODE_TOUCHSCREEN 0x02
72 #define MT_INPUTMODE_TOUCHPAD 0x03
73
74 struct mt_slot {
75 __s32 x, y, cx, cy, p, w, h;
76 __s32 contactid; /* the device ContactID assigned to this slot */
77 bool touch_state; /* is the touch valid? */
78 bool inrange_state; /* is the finger in proximity of the sensor? */
79 };
80
81 struct mt_class {
82 __s32 name; /* MT_CLS */
83 __s32 quirks;
84 __s32 sn_move; /* Signal/noise ratio for move events */
85 __s32 sn_width; /* Signal/noise ratio for width events */
86 __s32 sn_height; /* Signal/noise ratio for height events */
87 __s32 sn_pressure; /* Signal/noise ratio for pressure events */
88 __u8 maxcontacts;
89 bool is_indirect; /* true for touchpads */
90 bool export_all_inputs; /* do not ignore mouse, keyboards, etc... */
91 };
92
93 struct mt_fields {
94 unsigned usages[HID_MAX_FIELDS];
95 unsigned int length;
96 };
97
98 struct mt_device {
99 struct mt_slot curdata; /* placeholder of incoming data */
100 struct mt_class mtclass; /* our mt device class */
101 struct mt_fields *fields; /* temporary placeholder for storing the
102 multitouch fields */
103 int cc_index; /* contact count field index in the report */
104 int cc_value_index; /* contact count value index in the field */
105 unsigned last_slot_field; /* the last field of a slot */
106 unsigned mt_report_id; /* the report ID of the multitouch device */
107 __s16 inputmode; /* InputMode HID feature, -1 if non-existent */
108 __s16 inputmode_index; /* InputMode HID feature index in the report */
109 __s16 maxcontact_report_id; /* Maximum Contact Number HID feature,
110 -1 if non-existent */
111 __u8 inputmode_value; /* InputMode HID feature value */
112 __u8 num_received; /* how many contacts we received */
113 __u8 num_expected; /* expected last contact index */
114 __u8 maxcontacts;
115 __u8 touches_by_report; /* how many touches are present in one report:
116 * 1 means we should use a serial protocol
117 * > 1 means hybrid (multitouch) protocol */
118 bool serial_maybe; /* need to check for serial protocol */
119 bool curvalid; /* is the current contact valid? */
120 unsigned mt_flags; /* flags to pass to input-mt */
121 };
122
123 static void mt_post_parse_default_settings(struct mt_device *td);
124 static void mt_post_parse(struct mt_device *td);
125
126 /* classes of device behavior */
127 #define MT_CLS_DEFAULT 0x0001
128
129 #define MT_CLS_SERIAL 0x0002
130 #define MT_CLS_CONFIDENCE 0x0003
131 #define MT_CLS_CONFIDENCE_CONTACT_ID 0x0004
132 #define MT_CLS_CONFIDENCE_MINUS_ONE 0x0005
133 #define MT_CLS_DUAL_INRANGE_CONTACTID 0x0006
134 #define MT_CLS_DUAL_INRANGE_CONTACTNUMBER 0x0007
135 /* reserved 0x0008 */
136 #define MT_CLS_INRANGE_CONTACTNUMBER 0x0009
137 #define MT_CLS_NSMU 0x000a
138 /* reserved 0x0010 */
139 /* reserved 0x0011 */
140 #define MT_CLS_WIN_8 0x0012
141 #define MT_CLS_EXPORT_ALL_INPUTS 0x0013
142
143 /* vendor specific classes */
144 #define MT_CLS_3M 0x0101
145 /* reserved 0x0102 */
146 #define MT_CLS_EGALAX 0x0103
147 #define MT_CLS_EGALAX_SERIAL 0x0104
148 #define MT_CLS_TOPSEED 0x0105
149 #define MT_CLS_PANASONIC 0x0106
150 #define MT_CLS_FLATFROG 0x0107
151 #define MT_CLS_GENERALTOUCH_TWOFINGERS 0x0108
152 #define MT_CLS_GENERALTOUCH_PWT_TENFINGERS 0x0109
153 #define MT_CLS_VTL 0x0110
154
155 #define MT_DEFAULT_MAXCONTACT 10
156 #define MT_MAX_MAXCONTACT 250
157
158 #define MT_USB_DEVICE(v, p) HID_DEVICE(BUS_USB, HID_GROUP_MULTITOUCH, v, p)
159 #define MT_BT_DEVICE(v, p) HID_DEVICE(BUS_BLUETOOTH, HID_GROUP_MULTITOUCH, v, p)
160
161 /*
162 * these device-dependent functions determine what slot corresponds
163 * to a valid contact that was just read.
164 */
165
166 static int cypress_compute_slot(struct mt_device *td)
167 {
168 if (td->curdata.contactid != 0 || td->num_received == 0)
169 return td->curdata.contactid;
170 else
171 return -1;
172 }
173
174 static struct mt_class mt_classes[] = {
175 { .name = MT_CLS_DEFAULT,
176 .quirks = MT_QUIRK_ALWAYS_VALID |
177 MT_QUIRK_CONTACT_CNT_ACCURATE },
178 { .name = MT_CLS_NSMU,
179 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP },
180 { .name = MT_CLS_SERIAL,
181 .quirks = MT_QUIRK_ALWAYS_VALID},
182 { .name = MT_CLS_CONFIDENCE,
183 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE },
184 { .name = MT_CLS_CONFIDENCE_CONTACT_ID,
185 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE |
186 MT_QUIRK_SLOT_IS_CONTACTID },
187 { .name = MT_CLS_CONFIDENCE_MINUS_ONE,
188 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE |
189 MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE },
190 { .name = MT_CLS_DUAL_INRANGE_CONTACTID,
191 .quirks = MT_QUIRK_VALID_IS_INRANGE |
192 MT_QUIRK_SLOT_IS_CONTACTID,
193 .maxcontacts = 2 },
194 { .name = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
195 .quirks = MT_QUIRK_VALID_IS_INRANGE |
196 MT_QUIRK_SLOT_IS_CONTACTNUMBER,
197 .maxcontacts = 2 },
198 { .name = MT_CLS_INRANGE_CONTACTNUMBER,
199 .quirks = MT_QUIRK_VALID_IS_INRANGE |
200 MT_QUIRK_SLOT_IS_CONTACTNUMBER },
201 { .name = MT_CLS_WIN_8,
202 .quirks = MT_QUIRK_ALWAYS_VALID |
203 MT_QUIRK_IGNORE_DUPLICATES |
204 MT_QUIRK_HOVERING |
205 MT_QUIRK_CONTACT_CNT_ACCURATE },
206 { .name = MT_CLS_EXPORT_ALL_INPUTS,
207 .quirks = MT_QUIRK_ALWAYS_VALID |
208 MT_QUIRK_CONTACT_CNT_ACCURATE,
209 .export_all_inputs = true },
210
211 /*
212 * vendor specific classes
213 */
214 { .name = MT_CLS_3M,
215 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE |
216 MT_QUIRK_SLOT_IS_CONTACTID,
217 .sn_move = 2048,
218 .sn_width = 128,
219 .sn_height = 128,
220 .maxcontacts = 60,
221 },
222 { .name = MT_CLS_EGALAX,
223 .quirks = MT_QUIRK_SLOT_IS_CONTACTID |
224 MT_QUIRK_VALID_IS_INRANGE,
225 .sn_move = 4096,
226 .sn_pressure = 32,
227 },
228 { .name = MT_CLS_EGALAX_SERIAL,
229 .quirks = MT_QUIRK_SLOT_IS_CONTACTID |
230 MT_QUIRK_ALWAYS_VALID,
231 .sn_move = 4096,
232 .sn_pressure = 32,
233 },
234 { .name = MT_CLS_TOPSEED,
235 .quirks = MT_QUIRK_ALWAYS_VALID,
236 .is_indirect = true,
237 .maxcontacts = 2,
238 },
239 { .name = MT_CLS_PANASONIC,
240 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP,
241 .maxcontacts = 4 },
242 { .name = MT_CLS_GENERALTOUCH_TWOFINGERS,
243 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP |
244 MT_QUIRK_VALID_IS_INRANGE |
245 MT_QUIRK_SLOT_IS_CONTACTID,
246 .maxcontacts = 2
247 },
248 { .name = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
249 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP |
250 MT_QUIRK_SLOT_IS_CONTACTID
251 },
252
253 { .name = MT_CLS_FLATFROG,
254 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP |
255 MT_QUIRK_NO_AREA,
256 .sn_move = 2048,
257 .maxcontacts = 40,
258 },
259 { .name = MT_CLS_VTL,
260 .quirks = MT_QUIRK_ALWAYS_VALID |
261 MT_QUIRK_CONTACT_CNT_ACCURATE |
262 MT_QUIRK_FORCE_GET_FEATURE,
263 },
264 { }
265 };
266
267 static ssize_t mt_show_quirks(struct device *dev,
268 struct device_attribute *attr,
269 char *buf)
270 {
271 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
272 struct mt_device *td = hid_get_drvdata(hdev);
273
274 return sprintf(buf, "%u\n", td->mtclass.quirks);
275 }
276
277 static ssize_t mt_set_quirks(struct device *dev,
278 struct device_attribute *attr,
279 const char *buf, size_t count)
280 {
281 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
282 struct mt_device *td = hid_get_drvdata(hdev);
283
284 unsigned long val;
285
286 if (kstrtoul(buf, 0, &val))
287 return -EINVAL;
288
289 td->mtclass.quirks = val;
290
291 if (td->cc_index < 0)
292 td->mtclass.quirks &= ~MT_QUIRK_CONTACT_CNT_ACCURATE;
293
294 return count;
295 }
296
297 static DEVICE_ATTR(quirks, S_IWUSR | S_IRUGO, mt_show_quirks, mt_set_quirks);
298
299 static struct attribute *sysfs_attrs[] = {
300 &dev_attr_quirks.attr,
301 NULL
302 };
303
304 static struct attribute_group mt_attribute_group = {
305 .attrs = sysfs_attrs
306 };
307
308 static void mt_feature_mapping(struct hid_device *hdev,
309 struct hid_field *field, struct hid_usage *usage)
310 {
311 struct mt_device *td = hid_get_drvdata(hdev);
312
313 switch (usage->hid) {
314 case HID_DG_INPUTMODE:
315 /* Ignore if value index is out of bounds. */
316 if (usage->usage_index >= field->report_count) {
317 dev_err(&hdev->dev, "HID_DG_INPUTMODE out of range\n");
318 break;
319 }
320
321 td->inputmode = field->report->id;
322 td->inputmode_index = usage->usage_index;
323
324 break;
325 case HID_DG_CONTACTMAX:
326 td->maxcontact_report_id = field->report->id;
327 td->maxcontacts = field->value[0];
328 if (!td->maxcontacts &&
329 field->logical_maximum <= MT_MAX_MAXCONTACT)
330 td->maxcontacts = field->logical_maximum;
331 if (td->mtclass.maxcontacts)
332 /* check if the maxcontacts is given by the class */
333 td->maxcontacts = td->mtclass.maxcontacts;
334
335 break;
336 }
337 }
338
339 static void set_abs(struct input_dev *input, unsigned int code,
340 struct hid_field *field, int snratio)
341 {
342 int fmin = field->logical_minimum;
343 int fmax = field->logical_maximum;
344 int fuzz = snratio ? (fmax - fmin) / snratio : 0;
345 input_set_abs_params(input, code, fmin, fmax, fuzz, 0);
346 input_abs_set_res(input, code, hidinput_calc_abs_res(field, code));
347 }
348
349 static void mt_store_field(struct hid_usage *usage, struct mt_device *td,
350 struct hid_input *hi)
351 {
352 struct mt_fields *f = td->fields;
353
354 if (f->length >= HID_MAX_FIELDS)
355 return;
356
357 f->usages[f->length++] = usage->hid;
358 }
359
360 static int mt_touch_input_mapping(struct hid_device *hdev, struct hid_input *hi,
361 struct hid_field *field, struct hid_usage *usage,
362 unsigned long **bit, int *max)
363 {
364 struct mt_device *td = hid_get_drvdata(hdev);
365 struct mt_class *cls = &td->mtclass;
366 int code;
367 struct hid_usage *prev_usage = NULL;
368
369 if (field->application == HID_DG_TOUCHSCREEN)
370 td->mt_flags |= INPUT_MT_DIRECT;
371
372 /*
373 * Model touchscreens providing buttons as touchpads.
374 */
375 if (field->application == HID_DG_TOUCHPAD ||
376 (usage->hid & HID_USAGE_PAGE) == HID_UP_BUTTON) {
377 td->mt_flags |= INPUT_MT_POINTER;
378 td->inputmode_value = MT_INPUTMODE_TOUCHPAD;
379 }
380
381 if (usage->usage_index)
382 prev_usage = &field->usage[usage->usage_index - 1];
383
384 switch (usage->hid & HID_USAGE_PAGE) {
385
386 case HID_UP_GENDESK:
387 switch (usage->hid) {
388 case HID_GD_X:
389 if (prev_usage && (prev_usage->hid == usage->hid)) {
390 hid_map_usage(hi, usage, bit, max,
391 EV_ABS, ABS_MT_TOOL_X);
392 set_abs(hi->input, ABS_MT_TOOL_X, field,
393 cls->sn_move);
394 } else {
395 hid_map_usage(hi, usage, bit, max,
396 EV_ABS, ABS_MT_POSITION_X);
397 set_abs(hi->input, ABS_MT_POSITION_X, field,
398 cls->sn_move);
399 }
400
401 mt_store_field(usage, td, hi);
402 return 1;
403 case HID_GD_Y:
404 if (prev_usage && (prev_usage->hid == usage->hid)) {
405 hid_map_usage(hi, usage, bit, max,
406 EV_ABS, ABS_MT_TOOL_Y);
407 set_abs(hi->input, ABS_MT_TOOL_Y, field,
408 cls->sn_move);
409 } else {
410 hid_map_usage(hi, usage, bit, max,
411 EV_ABS, ABS_MT_POSITION_Y);
412 set_abs(hi->input, ABS_MT_POSITION_Y, field,
413 cls->sn_move);
414 }
415
416 mt_store_field(usage, td, hi);
417 return 1;
418 }
419 return 0;
420
421 case HID_UP_DIGITIZER:
422 switch (usage->hid) {
423 case HID_DG_INRANGE:
424 if (cls->quirks & MT_QUIRK_HOVERING) {
425 hid_map_usage(hi, usage, bit, max,
426 EV_ABS, ABS_MT_DISTANCE);
427 input_set_abs_params(hi->input,
428 ABS_MT_DISTANCE, 0, 1, 0, 0);
429 }
430 mt_store_field(usage, td, hi);
431 return 1;
432 case HID_DG_CONFIDENCE:
433 mt_store_field(usage, td, hi);
434 return 1;
435 case HID_DG_TIPSWITCH:
436 hid_map_usage(hi, usage, bit, max, EV_KEY, BTN_TOUCH);
437 input_set_capability(hi->input, EV_KEY, BTN_TOUCH);
438 mt_store_field(usage, td, hi);
439 return 1;
440 case HID_DG_CONTACTID:
441 mt_store_field(usage, td, hi);
442 td->touches_by_report++;
443 td->mt_report_id = field->report->id;
444 return 1;
445 case HID_DG_WIDTH:
446 hid_map_usage(hi, usage, bit, max,
447 EV_ABS, ABS_MT_TOUCH_MAJOR);
448 if (!(cls->quirks & MT_QUIRK_NO_AREA))
449 set_abs(hi->input, ABS_MT_TOUCH_MAJOR, field,
450 cls->sn_width);
451 mt_store_field(usage, td, hi);
452 return 1;
453 case HID_DG_HEIGHT:
454 hid_map_usage(hi, usage, bit, max,
455 EV_ABS, ABS_MT_TOUCH_MINOR);
456 if (!(cls->quirks & MT_QUIRK_NO_AREA)) {
457 set_abs(hi->input, ABS_MT_TOUCH_MINOR, field,
458 cls->sn_height);
459 input_set_abs_params(hi->input,
460 ABS_MT_ORIENTATION, 0, 1, 0, 0);
461 }
462 mt_store_field(usage, td, hi);
463 return 1;
464 case HID_DG_TIPPRESSURE:
465 hid_map_usage(hi, usage, bit, max,
466 EV_ABS, ABS_MT_PRESSURE);
467 set_abs(hi->input, ABS_MT_PRESSURE, field,
468 cls->sn_pressure);
469 mt_store_field(usage, td, hi);
470 return 1;
471 case HID_DG_CONTACTCOUNT:
472 /* Ignore if indexes are out of bounds. */
473 if (field->index >= field->report->maxfield ||
474 usage->usage_index >= field->report_count)
475 return 1;
476 td->cc_index = field->index;
477 td->cc_value_index = usage->usage_index;
478 return 1;
479 case HID_DG_CONTACTMAX:
480 /* we don't set td->last_slot_field as contactcount and
481 * contact max are global to the report */
482 return -1;
483 case HID_DG_TOUCH:
484 /* Legacy devices use TIPSWITCH and not TOUCH.
485 * Let's just ignore this field. */
486 return -1;
487 }
488 /* let hid-input decide for the others */
489 return 0;
490
491 case HID_UP_BUTTON:
492 code = BTN_MOUSE + ((usage->hid - 1) & HID_USAGE);
493 hid_map_usage(hi, usage, bit, max, EV_KEY, code);
494 input_set_capability(hi->input, EV_KEY, code);
495 return 1;
496
497 case 0xff000000:
498 /* we do not want to map these: no input-oriented meaning */
499 return -1;
500 }
501
502 return 0;
503 }
504
505 static int mt_touch_input_mapped(struct hid_device *hdev, struct hid_input *hi,
506 struct hid_field *field, struct hid_usage *usage,
507 unsigned long **bit, int *max)
508 {
509 if (usage->type == EV_KEY || usage->type == EV_ABS)
510 set_bit(usage->type, hi->input->evbit);
511
512 return -1;
513 }
514
515 static int mt_compute_slot(struct mt_device *td, struct input_dev *input)
516 {
517 __s32 quirks = td->mtclass.quirks;
518
519 if (quirks & MT_QUIRK_SLOT_IS_CONTACTID)
520 return td->curdata.contactid;
521
522 if (quirks & MT_QUIRK_CYPRESS)
523 return cypress_compute_slot(td);
524
525 if (quirks & MT_QUIRK_SLOT_IS_CONTACTNUMBER)
526 return td->num_received;
527
528 if (quirks & MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE)
529 return td->curdata.contactid - 1;
530
531 return input_mt_get_slot_by_key(input, td->curdata.contactid);
532 }
533
534 /*
535 * this function is called when a whole contact has been processed,
536 * so that it can assign it to a slot and store the data there
537 */
538 static void mt_complete_slot(struct mt_device *td, struct input_dev *input)
539 {
540 if ((td->mtclass.quirks & MT_QUIRK_CONTACT_CNT_ACCURATE) &&
541 td->num_received >= td->num_expected)
542 return;
543
544 if (td->curvalid || (td->mtclass.quirks & MT_QUIRK_ALWAYS_VALID)) {
545 int slotnum = mt_compute_slot(td, input);
546 struct mt_slot *s = &td->curdata;
547 struct input_mt *mt = input->mt;
548
549 if (slotnum < 0 || slotnum >= td->maxcontacts)
550 return;
551
552 if ((td->mtclass.quirks & MT_QUIRK_IGNORE_DUPLICATES) && mt) {
553 struct input_mt_slot *slot = &mt->slots[slotnum];
554 if (input_mt_is_active(slot) &&
555 input_mt_is_used(mt, slot))
556 return;
557 }
558
559 input_mt_slot(input, slotnum);
560 input_mt_report_slot_state(input, MT_TOOL_FINGER,
561 s->touch_state || s->inrange_state);
562 if (s->touch_state || s->inrange_state) {
563 /* this finger is in proximity of the sensor */
564 int wide = (s->w > s->h);
565 /* divided by two to match visual scale of touch */
566 int major = max(s->w, s->h) >> 1;
567 int minor = min(s->w, s->h) >> 1;
568
569 input_event(input, EV_ABS, ABS_MT_POSITION_X, s->x);
570 input_event(input, EV_ABS, ABS_MT_POSITION_Y, s->y);
571 input_event(input, EV_ABS, ABS_MT_TOOL_X, s->cx);
572 input_event(input, EV_ABS, ABS_MT_TOOL_Y, s->cy);
573 input_event(input, EV_ABS, ABS_MT_DISTANCE,
574 !s->touch_state);
575 input_event(input, EV_ABS, ABS_MT_ORIENTATION, wide);
576 input_event(input, EV_ABS, ABS_MT_PRESSURE, s->p);
577 input_event(input, EV_ABS, ABS_MT_TOUCH_MAJOR, major);
578 input_event(input, EV_ABS, ABS_MT_TOUCH_MINOR, minor);
579 }
580 }
581
582 td->num_received++;
583 }
584
585 /*
586 * this function is called when a whole packet has been received and processed,
587 * so that it can decide what to send to the input layer.
588 */
589 static void mt_sync_frame(struct mt_device *td, struct input_dev *input)
590 {
591 input_mt_sync_frame(input);
592 input_sync(input);
593 td->num_received = 0;
594 }
595
596 static int mt_touch_event(struct hid_device *hid, struct hid_field *field,
597 struct hid_usage *usage, __s32 value)
598 {
599 /* we will handle the hidinput part later, now remains hiddev */
600 if (hid->claimed & HID_CLAIMED_HIDDEV && hid->hiddev_hid_event)
601 hid->hiddev_hid_event(hid, field, usage, value);
602
603 return 1;
604 }
605
606 static void mt_process_mt_event(struct hid_device *hid, struct hid_field *field,
607 struct hid_usage *usage, __s32 value)
608 {
609 struct mt_device *td = hid_get_drvdata(hid);
610 __s32 quirks = td->mtclass.quirks;
611 struct input_dev *input = field->hidinput->input;
612
613 if (hid->claimed & HID_CLAIMED_INPUT) {
614 switch (usage->hid) {
615 case HID_DG_INRANGE:
616 if (quirks & MT_QUIRK_VALID_IS_INRANGE)
617 td->curvalid = value;
618 if (quirks & MT_QUIRK_HOVERING)
619 td->curdata.inrange_state = value;
620 break;
621 case HID_DG_TIPSWITCH:
622 if (quirks & MT_QUIRK_NOT_SEEN_MEANS_UP)
623 td->curvalid = value;
624 td->curdata.touch_state = value;
625 break;
626 case HID_DG_CONFIDENCE:
627 if (quirks & MT_QUIRK_VALID_IS_CONFIDENCE)
628 td->curvalid = value;
629 break;
630 case HID_DG_CONTACTID:
631 td->curdata.contactid = value;
632 break;
633 case HID_DG_TIPPRESSURE:
634 td->curdata.p = value;
635 break;
636 case HID_GD_X:
637 if (usage->code == ABS_MT_TOOL_X)
638 td->curdata.cx = value;
639 else
640 td->curdata.x = value;
641 break;
642 case HID_GD_Y:
643 if (usage->code == ABS_MT_TOOL_Y)
644 td->curdata.cy = value;
645 else
646 td->curdata.y = value;
647 break;
648 case HID_DG_WIDTH:
649 td->curdata.w = value;
650 break;
651 case HID_DG_HEIGHT:
652 td->curdata.h = value;
653 break;
654 case HID_DG_CONTACTCOUNT:
655 break;
656 case HID_DG_TOUCH:
657 /* do nothing */
658 break;
659
660 default:
661 if (usage->type)
662 input_event(input, usage->type, usage->code,
663 value);
664 return;
665 }
666
667 if (usage->usage_index + 1 == field->report_count) {
668 /* we only take into account the last report. */
669 if (usage->hid == td->last_slot_field)
670 mt_complete_slot(td, field->hidinput->input);
671 }
672
673 }
674 }
675
676 static void mt_touch_report(struct hid_device *hid, struct hid_report *report)
677 {
678 struct mt_device *td = hid_get_drvdata(hid);
679 struct hid_field *field;
680 unsigned count;
681 int r, n;
682
683 /*
684 * Includes multi-packet support where subsequent
685 * packets are sent with zero contactcount.
686 */
687 if (td->cc_index >= 0) {
688 struct hid_field *field = report->field[td->cc_index];
689 int value = field->value[td->cc_value_index];
690 if (value)
691 td->num_expected = value;
692 }
693
694 for (r = 0; r < report->maxfield; r++) {
695 field = report->field[r];
696 count = field->report_count;
697
698 if (!(HID_MAIN_ITEM_VARIABLE & field->flags))
699 continue;
700
701 for (n = 0; n < count; n++)
702 mt_process_mt_event(hid, field, &field->usage[n],
703 field->value[n]);
704 }
705
706 if (td->num_received >= td->num_expected)
707 mt_sync_frame(td, report->field[0]->hidinput->input);
708 }
709
710 static void mt_touch_input_configured(struct hid_device *hdev,
711 struct hid_input *hi)
712 {
713 struct mt_device *td = hid_get_drvdata(hdev);
714 struct mt_class *cls = &td->mtclass;
715 struct input_dev *input = hi->input;
716
717 if (!td->maxcontacts)
718 td->maxcontacts = MT_DEFAULT_MAXCONTACT;
719
720 mt_post_parse(td);
721 if (td->serial_maybe)
722 mt_post_parse_default_settings(td);
723
724 if (cls->is_indirect)
725 td->mt_flags |= INPUT_MT_POINTER;
726
727 if (cls->quirks & MT_QUIRK_NOT_SEEN_MEANS_UP)
728 td->mt_flags |= INPUT_MT_DROP_UNUSED;
729
730 input_mt_init_slots(input, td->maxcontacts, td->mt_flags);
731
732 td->mt_flags = 0;
733 }
734
735 static int mt_input_mapping(struct hid_device *hdev, struct hid_input *hi,
736 struct hid_field *field, struct hid_usage *usage,
737 unsigned long **bit, int *max)
738 {
739 struct mt_device *td = hid_get_drvdata(hdev);
740
741 /*
742 * If mtclass.export_all_inputs is not set, only map fields from
743 * TouchScreen or TouchPad collections. We need to ignore fields
744 * that belong to other collections such as Mouse that might have
745 * the same GenericDesktop usages.
746 */
747 if (!td->mtclass.export_all_inputs &&
748 field->application != HID_DG_TOUCHSCREEN &&
749 field->application != HID_DG_PEN &&
750 field->application != HID_DG_TOUCHPAD)
751 return -1;
752
753 /*
754 * some egalax touchscreens have "application == HID_DG_TOUCHSCREEN"
755 * for the stylus.
756 */
757 if (field->physical == HID_DG_STYLUS)
758 return 0;
759
760 if (field->application == HID_DG_TOUCHSCREEN ||
761 field->application == HID_DG_TOUCHPAD)
762 return mt_touch_input_mapping(hdev, hi, field, usage, bit, max);
763
764 /* let hid-core decide for the others */
765 return 0;
766 }
767
768 static int mt_input_mapped(struct hid_device *hdev, struct hid_input *hi,
769 struct hid_field *field, struct hid_usage *usage,
770 unsigned long **bit, int *max)
771 {
772 /*
773 * some egalax touchscreens have "application == HID_DG_TOUCHSCREEN"
774 * for the stylus.
775 */
776 if (field->physical == HID_DG_STYLUS)
777 return 0;
778
779 if (field->application == HID_DG_TOUCHSCREEN ||
780 field->application == HID_DG_TOUCHPAD)
781 return mt_touch_input_mapped(hdev, hi, field, usage, bit, max);
782
783 /* let hid-core decide for the others */
784 return 0;
785 }
786
787 static int mt_event(struct hid_device *hid, struct hid_field *field,
788 struct hid_usage *usage, __s32 value)
789 {
790 struct mt_device *td = hid_get_drvdata(hid);
791
792 if (field->report->id == td->mt_report_id)
793 return mt_touch_event(hid, field, usage, value);
794
795 return 0;
796 }
797
798 static void mt_report(struct hid_device *hid, struct hid_report *report)
799 {
800 struct mt_device *td = hid_get_drvdata(hid);
801 struct hid_field *field = report->field[0];
802
803 if (!(hid->claimed & HID_CLAIMED_INPUT))
804 return;
805
806 if (report->id == td->mt_report_id)
807 return mt_touch_report(hid, report);
808
809 if (field && field->hidinput && field->hidinput->input)
810 input_sync(field->hidinput->input);
811 }
812
813 static void mt_set_input_mode(struct hid_device *hdev)
814 {
815 struct mt_device *td = hid_get_drvdata(hdev);
816 struct hid_report *r;
817 struct hid_report_enum *re;
818 struct mt_class *cls = &td->mtclass;
819 char *buf;
820 int report_len;
821
822 if (td->inputmode < 0)
823 return;
824
825 re = &(hdev->report_enum[HID_FEATURE_REPORT]);
826 r = re->report_id_hash[td->inputmode];
827 if (r) {
828 if (cls->quirks & MT_QUIRK_FORCE_GET_FEATURE) {
829 report_len = hid_report_len(r);
830 buf = hid_alloc_report_buf(r, GFP_KERNEL);
831 if (!buf) {
832 hid_err(hdev, "failed to allocate buffer for report\n");
833 return;
834 }
835 hid_hw_raw_request(hdev, r->id, buf, report_len,
836 HID_FEATURE_REPORT,
837 HID_REQ_GET_REPORT);
838 kfree(buf);
839 }
840 r->field[0]->value[td->inputmode_index] = td->inputmode_value;
841 hid_hw_request(hdev, r, HID_REQ_SET_REPORT);
842 }
843 }
844
845 static void mt_set_maxcontacts(struct hid_device *hdev)
846 {
847 struct mt_device *td = hid_get_drvdata(hdev);
848 struct hid_report *r;
849 struct hid_report_enum *re;
850 int fieldmax, max;
851
852 if (td->maxcontact_report_id < 0)
853 return;
854
855 if (!td->mtclass.maxcontacts)
856 return;
857
858 re = &hdev->report_enum[HID_FEATURE_REPORT];
859 r = re->report_id_hash[td->maxcontact_report_id];
860 if (r) {
861 max = td->mtclass.maxcontacts;
862 fieldmax = r->field[0]->logical_maximum;
863 max = min(fieldmax, max);
864 if (r->field[0]->value[0] != max) {
865 r->field[0]->value[0] = max;
866 hid_hw_request(hdev, r, HID_REQ_SET_REPORT);
867 }
868 }
869 }
870
871 static void mt_post_parse_default_settings(struct mt_device *td)
872 {
873 __s32 quirks = td->mtclass.quirks;
874
875 /* unknown serial device needs special quirks */
876 if (td->touches_by_report == 1) {
877 quirks |= MT_QUIRK_ALWAYS_VALID;
878 quirks &= ~MT_QUIRK_NOT_SEEN_MEANS_UP;
879 quirks &= ~MT_QUIRK_VALID_IS_INRANGE;
880 quirks &= ~MT_QUIRK_VALID_IS_CONFIDENCE;
881 quirks &= ~MT_QUIRK_CONTACT_CNT_ACCURATE;
882 }
883
884 td->mtclass.quirks = quirks;
885 }
886
887 static void mt_post_parse(struct mt_device *td)
888 {
889 struct mt_fields *f = td->fields;
890 struct mt_class *cls = &td->mtclass;
891
892 if (td->touches_by_report > 0) {
893 int field_count_per_touch = f->length / td->touches_by_report;
894 td->last_slot_field = f->usages[field_count_per_touch - 1];
895 }
896
897 if (td->cc_index < 0)
898 cls->quirks &= ~MT_QUIRK_CONTACT_CNT_ACCURATE;
899 }
900
901 static void mt_input_configured(struct hid_device *hdev, struct hid_input *hi)
902 {
903 struct mt_device *td = hid_get_drvdata(hdev);
904 char *name;
905 const char *suffix = NULL;
906 struct hid_field *field = hi->report->field[0];
907
908 if (hi->report->id == td->mt_report_id)
909 mt_touch_input_configured(hdev, hi);
910
911 /*
912 * some egalax touchscreens have "application == HID_DG_TOUCHSCREEN"
913 * for the stylus. Check this first, and then rely on the application
914 * field.
915 */
916 if (hi->report->field[0]->physical == HID_DG_STYLUS) {
917 suffix = "Pen";
918 /* force BTN_STYLUS to allow tablet matching in udev */
919 __set_bit(BTN_STYLUS, hi->input->keybit);
920 } else {
921 switch (field->application) {
922 case HID_GD_KEYBOARD:
923 suffix = "Keyboard";
924 break;
925 case HID_GD_KEYPAD:
926 suffix = "Keypad";
927 break;
928 case HID_GD_MOUSE:
929 suffix = "Mouse";
930 break;
931 case HID_DG_STYLUS:
932 suffix = "Pen";
933 /* force BTN_STYLUS to allow tablet matching in udev */
934 __set_bit(BTN_STYLUS, hi->input->keybit);
935 break;
936 case HID_DG_TOUCHSCREEN:
937 /* we do not set suffix = "Touchscreen" */
938 break;
939 case HID_GD_SYSTEM_CONTROL:
940 suffix = "System Control";
941 break;
942 case HID_CP_CONSUMER_CONTROL:
943 suffix = "Consumer Control";
944 break;
945 default:
946 suffix = "UNKNOWN";
947 break;
948 }
949 }
950
951 if (suffix) {
952 name = devm_kzalloc(&hi->input->dev,
953 strlen(hdev->name) + strlen(suffix) + 2,
954 GFP_KERNEL);
955 if (name) {
956 sprintf(name, "%s %s", hdev->name, suffix);
957 hi->input->name = name;
958 }
959 }
960 }
961
962 static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id)
963 {
964 int ret, i;
965 struct mt_device *td;
966 struct mt_class *mtclass = mt_classes; /* MT_CLS_DEFAULT */
967
968 for (i = 0; mt_classes[i].name ; i++) {
969 if (id->driver_data == mt_classes[i].name) {
970 mtclass = &(mt_classes[i]);
971 break;
972 }
973 }
974
975 /* This allows the driver to correctly support devices
976 * that emit events over several HID messages.
977 */
978 hdev->quirks |= HID_QUIRK_NO_INPUT_SYNC;
979
980 /*
981 * This allows the driver to handle different input sensors
982 * that emits events through different reports on the same HID
983 * device.
984 */
985 hdev->quirks |= HID_QUIRK_MULTI_INPUT;
986 hdev->quirks |= HID_QUIRK_NO_EMPTY_INPUT;
987
988 /*
989 * Handle special quirks for Windows 8 certified devices.
990 */
991 if (id->group == HID_GROUP_MULTITOUCH_WIN_8)
992 /*
993 * Some multitouch screens do not like to be polled for input
994 * reports. Fortunately, the Win8 spec says that all touches
995 * should be sent during each report, making the initialization
996 * of input reports unnecessary.
997 */
998 hdev->quirks |= HID_QUIRK_NO_INIT_INPUT_REPORTS;
999
1000 td = devm_kzalloc(&hdev->dev, sizeof(struct mt_device), GFP_KERNEL);
1001 if (!td) {
1002 dev_err(&hdev->dev, "cannot allocate multitouch data\n");
1003 return -ENOMEM;
1004 }
1005 td->mtclass = *mtclass;
1006 td->inputmode = -1;
1007 td->maxcontact_report_id = -1;
1008 td->inputmode_value = MT_INPUTMODE_TOUCHSCREEN;
1009 td->cc_index = -1;
1010 td->mt_report_id = -1;
1011 hid_set_drvdata(hdev, td);
1012
1013 td->fields = devm_kzalloc(&hdev->dev, sizeof(struct mt_fields),
1014 GFP_KERNEL);
1015 if (!td->fields) {
1016 dev_err(&hdev->dev, "cannot allocate multitouch fields data\n");
1017 return -ENOMEM;
1018 }
1019
1020 if (id->vendor == HID_ANY_ID && id->product == HID_ANY_ID)
1021 td->serial_maybe = true;
1022
1023 ret = hid_parse(hdev);
1024 if (ret != 0)
1025 return ret;
1026
1027 ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
1028 if (ret)
1029 return ret;
1030
1031 ret = sysfs_create_group(&hdev->dev.kobj, &mt_attribute_group);
1032
1033 mt_set_maxcontacts(hdev);
1034 mt_set_input_mode(hdev);
1035
1036 /* release .fields memory as it is not used anymore */
1037 devm_kfree(&hdev->dev, td->fields);
1038 td->fields = NULL;
1039
1040 return 0;
1041 }
1042
1043 #ifdef CONFIG_PM
1044 static int mt_reset_resume(struct hid_device *hdev)
1045 {
1046 mt_set_maxcontacts(hdev);
1047 mt_set_input_mode(hdev);
1048 return 0;
1049 }
1050
1051 static int mt_resume(struct hid_device *hdev)
1052 {
1053 /* Some Elan legacy devices require SET_IDLE to be set on resume.
1054 * It should be safe to send it to other devices too.
1055 * Tested on 3M, Stantum, Cypress, Zytronic, eGalax, and Elan panels. */
1056
1057 hid_hw_idle(hdev, 0, 0, HID_REQ_SET_IDLE);
1058
1059 return 0;
1060 }
1061 #endif
1062
1063 static void mt_remove(struct hid_device *hdev)
1064 {
1065 sysfs_remove_group(&hdev->dev.kobj, &mt_attribute_group);
1066 hid_hw_stop(hdev);
1067 }
1068
1069 /*
1070 * This list contains only:
1071 * - VID/PID of products not working with the default multitouch handling
1072 * - 2 generic rules.
1073 * So there is no point in adding here any device with MT_CLS_DEFAULT.
1074 */
1075 static const struct hid_device_id mt_devices[] = {
1076
1077 /* 3M panels */
1078 { .driver_data = MT_CLS_3M,
1079 MT_USB_DEVICE(USB_VENDOR_ID_3M,
1080 USB_DEVICE_ID_3M1968) },
1081 { .driver_data = MT_CLS_3M,
1082 MT_USB_DEVICE(USB_VENDOR_ID_3M,
1083 USB_DEVICE_ID_3M2256) },
1084 { .driver_data = MT_CLS_3M,
1085 MT_USB_DEVICE(USB_VENDOR_ID_3M,
1086 USB_DEVICE_ID_3M3266) },
1087
1088 /* Anton devices */
1089 { .driver_data = MT_CLS_EXPORT_ALL_INPUTS,
1090 MT_USB_DEVICE(USB_VENDOR_ID_ANTON,
1091 USB_DEVICE_ID_ANTON_TOUCH_PAD) },
1092
1093 /* Atmel panels */
1094 { .driver_data = MT_CLS_SERIAL,
1095 MT_USB_DEVICE(USB_VENDOR_ID_ATMEL,
1096 USB_DEVICE_ID_ATMEL_MXT_DIGITIZER) },
1097
1098 /* Baanto multitouch devices */
1099 { .driver_data = MT_CLS_NSMU,
1100 MT_USB_DEVICE(USB_VENDOR_ID_BAANTO,
1101 USB_DEVICE_ID_BAANTO_MT_190W2) },
1102
1103 /* Cando panels */
1104 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
1105 MT_USB_DEVICE(USB_VENDOR_ID_CANDO,
1106 USB_DEVICE_ID_CANDO_MULTI_TOUCH) },
1107 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
1108 MT_USB_DEVICE(USB_VENDOR_ID_CANDO,
1109 USB_DEVICE_ID_CANDO_MULTI_TOUCH_15_6) },
1110
1111 /* Chunghwa Telecom touch panels */
1112 { .driver_data = MT_CLS_NSMU,
1113 MT_USB_DEVICE(USB_VENDOR_ID_CHUNGHWAT,
1114 USB_DEVICE_ID_CHUNGHWAT_MULTITOUCH) },
1115
1116 /* CVTouch panels */
1117 { .driver_data = MT_CLS_NSMU,
1118 MT_USB_DEVICE(USB_VENDOR_ID_CVTOUCH,
1119 USB_DEVICE_ID_CVTOUCH_SCREEN) },
1120
1121 /* eGalax devices (resistive) */
1122 { .driver_data = MT_CLS_EGALAX,
1123 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1124 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_480D) },
1125 { .driver_data = MT_CLS_EGALAX,
1126 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1127 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_480E) },
1128
1129 /* eGalax devices (capacitive) */
1130 { .driver_data = MT_CLS_EGALAX_SERIAL,
1131 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1132 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7207) },
1133 { .driver_data = MT_CLS_EGALAX,
1134 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1135 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_720C) },
1136 { .driver_data = MT_CLS_EGALAX_SERIAL,
1137 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1138 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7224) },
1139 { .driver_data = MT_CLS_EGALAX_SERIAL,
1140 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1141 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_722A) },
1142 { .driver_data = MT_CLS_EGALAX_SERIAL,
1143 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1144 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_725E) },
1145 { .driver_data = MT_CLS_EGALAX_SERIAL,
1146 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1147 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7262) },
1148 { .driver_data = MT_CLS_EGALAX,
1149 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1150 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_726B) },
1151 { .driver_data = MT_CLS_EGALAX,
1152 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1153 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72A1) },
1154 { .driver_data = MT_CLS_EGALAX_SERIAL,
1155 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1156 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72AA) },
1157 { .driver_data = MT_CLS_EGALAX,
1158 HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
1159 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72C4) },
1160 { .driver_data = MT_CLS_EGALAX,
1161 HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
1162 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72D0) },
1163 { .driver_data = MT_CLS_EGALAX,
1164 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1165 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72FA) },
1166 { .driver_data = MT_CLS_EGALAX,
1167 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1168 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7302) },
1169 { .driver_data = MT_CLS_EGALAX_SERIAL,
1170 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1171 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7349) },
1172 { .driver_data = MT_CLS_EGALAX_SERIAL,
1173 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1174 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_73F7) },
1175 { .driver_data = MT_CLS_EGALAX_SERIAL,
1176 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1177 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_A001) },
1178
1179 /* Elitegroup panel */
1180 { .driver_data = MT_CLS_SERIAL,
1181 MT_USB_DEVICE(USB_VENDOR_ID_ELITEGROUP,
1182 USB_DEVICE_ID_ELITEGROUP_05D8) },
1183
1184 /* Flatfrog Panels */
1185 { .driver_data = MT_CLS_FLATFROG,
1186 MT_USB_DEVICE(USB_VENDOR_ID_FLATFROG,
1187 USB_DEVICE_ID_MULTITOUCH_3200) },
1188
1189 /* FocalTech Panels */
1190 { .driver_data = MT_CLS_SERIAL,
1191 MT_USB_DEVICE(USB_VENDOR_ID_CYGNAL,
1192 USB_DEVICE_ID_FOCALTECH_FTXXXX_MULTITOUCH) },
1193
1194 /* GeneralTouch panel */
1195 { .driver_data = MT_CLS_GENERALTOUCH_TWOFINGERS,
1196 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
1197 USB_DEVICE_ID_GENERAL_TOUCH_WIN7_TWOFINGERS) },
1198 { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
1199 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
1200 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PWT_TENFINGERS) },
1201 { .driver_data = MT_CLS_GENERALTOUCH_TWOFINGERS,
1202 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
1203 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_0101) },
1204 { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
1205 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
1206 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_0102) },
1207 { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
1208 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
1209 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_0106) },
1210 { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
1211 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
1212 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_010A) },
1213 { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
1214 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
1215 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_E100) },
1216
1217 /* Gametel game controller */
1218 { .driver_data = MT_CLS_NSMU,
1219 MT_BT_DEVICE(USB_VENDOR_ID_FRUCTEL,
1220 USB_DEVICE_ID_GAMETEL_MT_MODE) },
1221
1222 /* GoodTouch panels */
1223 { .driver_data = MT_CLS_NSMU,
1224 MT_USB_DEVICE(USB_VENDOR_ID_GOODTOUCH,
1225 USB_DEVICE_ID_GOODTOUCH_000f) },
1226
1227 /* Hanvon panels */
1228 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID,
1229 MT_USB_DEVICE(USB_VENDOR_ID_HANVON_ALT,
1230 USB_DEVICE_ID_HANVON_ALT_MULTITOUCH) },
1231
1232 /* Ilitek dual touch panel */
1233 { .driver_data = MT_CLS_NSMU,
1234 MT_USB_DEVICE(USB_VENDOR_ID_ILITEK,
1235 USB_DEVICE_ID_ILITEK_MULTITOUCH) },
1236
1237 /* MosArt panels */
1238 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
1239 MT_USB_DEVICE(USB_VENDOR_ID_ASUS,
1240 USB_DEVICE_ID_ASUS_T91MT)},
1241 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
1242 MT_USB_DEVICE(USB_VENDOR_ID_ASUS,
1243 USB_DEVICE_ID_ASUSTEK_MULTITOUCH_YFO) },
1244 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
1245 MT_USB_DEVICE(USB_VENDOR_ID_TURBOX,
1246 USB_DEVICE_ID_TURBOX_TOUCHSCREEN_MOSART) },
1247
1248 /* Panasonic panels */
1249 { .driver_data = MT_CLS_PANASONIC,
1250 MT_USB_DEVICE(USB_VENDOR_ID_PANASONIC,
1251 USB_DEVICE_ID_PANABOARD_UBT780) },
1252 { .driver_data = MT_CLS_PANASONIC,
1253 MT_USB_DEVICE(USB_VENDOR_ID_PANASONIC,
1254 USB_DEVICE_ID_PANABOARD_UBT880) },
1255
1256 /* Novatek Panel */
1257 { .driver_data = MT_CLS_NSMU,
1258 MT_USB_DEVICE(USB_VENDOR_ID_NOVATEK,
1259 USB_DEVICE_ID_NOVATEK_PCT) },
1260
1261 /* PixArt optical touch screen */
1262 { .driver_data = MT_CLS_INRANGE_CONTACTNUMBER,
1263 MT_USB_DEVICE(USB_VENDOR_ID_PIXART,
1264 USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN) },
1265 { .driver_data = MT_CLS_INRANGE_CONTACTNUMBER,
1266 MT_USB_DEVICE(USB_VENDOR_ID_PIXART,
1267 USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN1) },
1268 { .driver_data = MT_CLS_INRANGE_CONTACTNUMBER,
1269 MT_USB_DEVICE(USB_VENDOR_ID_PIXART,
1270 USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN2) },
1271
1272 /* PixCir-based panels */
1273 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID,
1274 MT_USB_DEVICE(USB_VENDOR_ID_CANDO,
1275 USB_DEVICE_ID_CANDO_PIXCIR_MULTI_TOUCH) },
1276
1277 /* Quanta-based panels */
1278 { .driver_data = MT_CLS_CONFIDENCE_CONTACT_ID,
1279 MT_USB_DEVICE(USB_VENDOR_ID_QUANTA,
1280 USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3001) },
1281
1282 /* Stantum panels */
1283 { .driver_data = MT_CLS_CONFIDENCE,
1284 MT_USB_DEVICE(USB_VENDOR_ID_STANTUM_STM,
1285 USB_DEVICE_ID_MTP_STM)},
1286
1287 /* TopSeed panels */
1288 { .driver_data = MT_CLS_TOPSEED,
1289 MT_USB_DEVICE(USB_VENDOR_ID_TOPSEED2,
1290 USB_DEVICE_ID_TOPSEED2_PERIPAD_701) },
1291
1292 /* Touch International panels */
1293 { .driver_data = MT_CLS_NSMU,
1294 MT_USB_DEVICE(USB_VENDOR_ID_TOUCH_INTL,
1295 USB_DEVICE_ID_TOUCH_INTL_MULTI_TOUCH) },
1296
1297 /* Unitec panels */
1298 { .driver_data = MT_CLS_NSMU,
1299 MT_USB_DEVICE(USB_VENDOR_ID_UNITEC,
1300 USB_DEVICE_ID_UNITEC_USB_TOUCH_0709) },
1301 { .driver_data = MT_CLS_NSMU,
1302 MT_USB_DEVICE(USB_VENDOR_ID_UNITEC,
1303 USB_DEVICE_ID_UNITEC_USB_TOUCH_0A19) },
1304
1305 /* VTL panels */
1306 { .driver_data = MT_CLS_VTL,
1307 MT_USB_DEVICE(USB_VENDOR_ID_VTL,
1308 USB_DEVICE_ID_VTL_MULTITOUCH_FF3F) },
1309
1310 /* Wistron panels */
1311 { .driver_data = MT_CLS_NSMU,
1312 MT_USB_DEVICE(USB_VENDOR_ID_WISTRON,
1313 USB_DEVICE_ID_WISTRON_OPTICAL_TOUCH) },
1314
1315 /* XAT */
1316 { .driver_data = MT_CLS_NSMU,
1317 MT_USB_DEVICE(USB_VENDOR_ID_XAT,
1318 USB_DEVICE_ID_XAT_CSR) },
1319
1320 /* Xiroku */
1321 { .driver_data = MT_CLS_NSMU,
1322 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1323 USB_DEVICE_ID_XIROKU_SPX) },
1324 { .driver_data = MT_CLS_NSMU,
1325 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1326 USB_DEVICE_ID_XIROKU_MPX) },
1327 { .driver_data = MT_CLS_NSMU,
1328 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1329 USB_DEVICE_ID_XIROKU_CSR) },
1330 { .driver_data = MT_CLS_NSMU,
1331 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1332 USB_DEVICE_ID_XIROKU_SPX1) },
1333 { .driver_data = MT_CLS_NSMU,
1334 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1335 USB_DEVICE_ID_XIROKU_MPX1) },
1336 { .driver_data = MT_CLS_NSMU,
1337 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1338 USB_DEVICE_ID_XIROKU_CSR1) },
1339 { .driver_data = MT_CLS_NSMU,
1340 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1341 USB_DEVICE_ID_XIROKU_SPX2) },
1342 { .driver_data = MT_CLS_NSMU,
1343 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1344 USB_DEVICE_ID_XIROKU_MPX2) },
1345 { .driver_data = MT_CLS_NSMU,
1346 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1347 USB_DEVICE_ID_XIROKU_CSR2) },
1348
1349 /* Generic MT device */
1350 { HID_DEVICE(HID_BUS_ANY, HID_GROUP_MULTITOUCH, HID_ANY_ID, HID_ANY_ID) },
1351
1352 /* Generic Win 8 certified MT device */
1353 { .driver_data = MT_CLS_WIN_8,
1354 HID_DEVICE(HID_BUS_ANY, HID_GROUP_MULTITOUCH_WIN_8,
1355 HID_ANY_ID, HID_ANY_ID) },
1356 { }
1357 };
1358 MODULE_DEVICE_TABLE(hid, mt_devices);
1359
1360 static const struct hid_usage_id mt_grabbed_usages[] = {
1361 { HID_ANY_ID, HID_ANY_ID, HID_ANY_ID },
1362 { HID_ANY_ID - 1, HID_ANY_ID - 1, HID_ANY_ID - 1}
1363 };
1364
1365 static struct hid_driver mt_driver = {
1366 .name = "hid-multitouch",
1367 .id_table = mt_devices,
1368 .probe = mt_probe,
1369 .remove = mt_remove,
1370 .input_mapping = mt_input_mapping,
1371 .input_mapped = mt_input_mapped,
1372 .input_configured = mt_input_configured,
1373 .feature_mapping = mt_feature_mapping,
1374 .usage_table = mt_grabbed_usages,
1375 .event = mt_event,
1376 .report = mt_report,
1377 #ifdef CONFIG_PM
1378 .reset_resume = mt_reset_resume,
1379 .resume = mt_resume,
1380 #endif
1381 };
1382 module_hid_driver(mt_driver);
Linux kernel - Deliverables
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