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UBUNTU: SAUCE: HID: multitouch: Support ALPS PTP stick with pid 0x120A
[mirror_ubuntu-zesty-kernel.git] / drivers / hid / hid-multitouch.c
1 /*
2 * HID driver for multitouch panels
3 *
4 * Copyright (c) 2010-2012 Stephane Chatty <chatty@enac.fr>
5 * Copyright (c) 2010-2013 Benjamin Tissoires <benjamin.tissoires@gmail.com>
6 * Copyright (c) 2010-2012 Ecole Nationale de l'Aviation Civile, France
7 * Copyright (c) 2012-2013 Red Hat, Inc
8 *
9 * This code is partly based on hid-egalax.c:
10 *
11 * Copyright (c) 2010 Stephane Chatty <chatty@enac.fr>
12 * Copyright (c) 2010 Henrik Rydberg <rydberg@euromail.se>
13 * Copyright (c) 2010 Canonical, Ltd.
14 *
15 * This code is partly based on hid-3m-pct.c:
16 *
17 * Copyright (c) 2009-2010 Stephane Chatty <chatty@enac.fr>
18 * Copyright (c) 2010 Henrik Rydberg <rydberg@euromail.se>
19 * Copyright (c) 2010 Canonical, Ltd.
20 *
21 */
22
23 /*
24 * This program is free software; you can redistribute it and/or modify it
25 * under the terms of the GNU General Public License as published by the Free
26 * Software Foundation; either version 2 of the License, or (at your option)
27 * any later version.
28 */
29
30 /*
31 * This driver is regularly tested thanks to the tool hid-test[1].
32 * This tool relies on hid-replay[2] and a database of hid devices[3].
33 * Please run these regression tests before patching this module so that
34 * your patch won't break existing known devices.
35 *
36 * [1] https://github.com/bentiss/hid-test
37 * [2] https://github.com/bentiss/hid-replay
38 * [3] https://github.com/bentiss/hid-devices
39 */
40
41 #include <linux/device.h>
42 #include <linux/hid.h>
43 #include <linux/module.h>
44 #include <linux/slab.h>
45 #include <linux/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_CONFIDENCE (1 << 7)
65 #define MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE (1 << 8)
66 #define MT_QUIRK_NO_AREA (1 << 9)
67 #define MT_QUIRK_IGNORE_DUPLICATES (1 << 10)
68 #define MT_QUIRK_HOVERING (1 << 11)
69 #define MT_QUIRK_CONTACT_CNT_ACCURATE (1 << 12)
70 #define MT_QUIRK_FORCE_GET_FEATURE (1 << 13)
71
72 #define MT_INPUTMODE_TOUCHSCREEN 0x02
73 #define MT_INPUTMODE_TOUCHPAD 0x03
74
75 #define MT_BUTTONTYPE_CLICKPAD 0
76
77 struct mt_slot {
78 __s32 x, y, cx, cy, p, w, h;
79 __s32 contactid; /* the device ContactID assigned to this slot */
80 bool touch_state; /* is the touch valid? */
81 bool inrange_state; /* is the finger in proximity of the sensor? */
82 bool confidence_state; /* is the touch made by a finger? */
83 };
84
85 struct mt_class {
86 __s32 name; /* MT_CLS */
87 __s32 quirks;
88 __s32 sn_move; /* Signal/noise ratio for move events */
89 __s32 sn_width; /* Signal/noise ratio for width events */
90 __s32 sn_height; /* Signal/noise ratio for height events */
91 __s32 sn_pressure; /* Signal/noise ratio for pressure events */
92 __u8 maxcontacts;
93 bool is_indirect; /* true for touchpads */
94 bool export_all_inputs; /* do not ignore mouse, keyboards, etc... */
95 };
96
97 struct mt_fields {
98 unsigned usages[HID_MAX_FIELDS];
99 unsigned int length;
100 };
101
102 struct mt_device {
103 struct mt_slot curdata; /* placeholder of incoming data */
104 struct mt_class mtclass; /* our mt device class */
105 struct mt_fields *fields; /* temporary placeholder for storing the
106 multitouch fields */
107 int cc_index; /* contact count field index in the report */
108 int cc_value_index; /* contact count value index in the field */
109 unsigned last_slot_field; /* the last field of a slot */
110 unsigned mt_report_id; /* the report ID of the multitouch device */
111 unsigned long initial_quirks; /* initial quirks state */
112 __s16 inputmode; /* InputMode HID feature, -1 if non-existent */
113 __s16 inputmode_index; /* InputMode HID feature index in the report */
114 __s16 maxcontact_report_id; /* Maximum Contact Number HID feature,
115 -1 if non-existent */
116 __u8 inputmode_value; /* InputMode HID feature value */
117 __u8 num_received; /* how many contacts we received */
118 __u8 num_expected; /* expected last contact index */
119 __u8 maxcontacts;
120 __u8 touches_by_report; /* how many touches are present in one report:
121 * 1 means we should use a serial protocol
122 * > 1 means hybrid (multitouch) protocol */
123 __u8 buttons_count; /* number of physical buttons per touchpad */
124 bool is_buttonpad; /* is this device a button pad? */
125 bool serial_maybe; /* need to check for serial protocol */
126 bool curvalid; /* is the current contact valid? */
127 unsigned mt_flags; /* flags to pass to input-mt */
128 };
129
130 static void mt_post_parse_default_settings(struct mt_device *td);
131 static void mt_post_parse(struct mt_device *td);
132
133 /* classes of device behavior */
134 #define MT_CLS_DEFAULT 0x0001
135
136 #define MT_CLS_SERIAL 0x0002
137 #define MT_CLS_CONFIDENCE 0x0003
138 #define MT_CLS_CONFIDENCE_CONTACT_ID 0x0004
139 #define MT_CLS_CONFIDENCE_MINUS_ONE 0x0005
140 #define MT_CLS_DUAL_INRANGE_CONTACTID 0x0006
141 #define MT_CLS_DUAL_INRANGE_CONTACTNUMBER 0x0007
142 /* reserved 0x0008 */
143 #define MT_CLS_INRANGE_CONTACTNUMBER 0x0009
144 #define MT_CLS_NSMU 0x000a
145 /* reserved 0x0010 */
146 /* reserved 0x0011 */
147 #define MT_CLS_WIN_8 0x0012
148 #define MT_CLS_EXPORT_ALL_INPUTS 0x0013
149 #define MT_CLS_WIN_8_DUAL 0x0014
150
151 /* vendor specific classes */
152 #define MT_CLS_3M 0x0101
153 /* reserved 0x0102 */
154 #define MT_CLS_EGALAX 0x0103
155 #define MT_CLS_EGALAX_SERIAL 0x0104
156 #define MT_CLS_TOPSEED 0x0105
157 #define MT_CLS_PANASONIC 0x0106
158 #define MT_CLS_FLATFROG 0x0107
159 #define MT_CLS_GENERALTOUCH_TWOFINGERS 0x0108
160 #define MT_CLS_GENERALTOUCH_PWT_TENFINGERS 0x0109
161 #define MT_CLS_VTL 0x0110
162
163 #define MT_DEFAULT_MAXCONTACT 10
164 #define MT_MAX_MAXCONTACT 250
165
166 #define MT_USB_DEVICE(v, p) HID_DEVICE(BUS_USB, HID_GROUP_MULTITOUCH, v, p)
167 #define MT_BT_DEVICE(v, p) HID_DEVICE(BUS_BLUETOOTH, HID_GROUP_MULTITOUCH, v, p)
168
169 /*
170 * these device-dependent functions determine what slot corresponds
171 * to a valid contact that was just read.
172 */
173
174 static int cypress_compute_slot(struct mt_device *td)
175 {
176 if (td->curdata.contactid != 0 || td->num_received == 0)
177 return td->curdata.contactid;
178 else
179 return -1;
180 }
181
182 static struct mt_class mt_classes[] = {
183 { .name = MT_CLS_DEFAULT,
184 .quirks = MT_QUIRK_ALWAYS_VALID |
185 MT_QUIRK_CONTACT_CNT_ACCURATE },
186 { .name = MT_CLS_NSMU,
187 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP },
188 { .name = MT_CLS_SERIAL,
189 .quirks = MT_QUIRK_ALWAYS_VALID},
190 { .name = MT_CLS_CONFIDENCE,
191 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE },
192 { .name = MT_CLS_CONFIDENCE_CONTACT_ID,
193 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE |
194 MT_QUIRK_SLOT_IS_CONTACTID },
195 { .name = MT_CLS_CONFIDENCE_MINUS_ONE,
196 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE |
197 MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE },
198 { .name = MT_CLS_DUAL_INRANGE_CONTACTID,
199 .quirks = MT_QUIRK_VALID_IS_INRANGE |
200 MT_QUIRK_SLOT_IS_CONTACTID,
201 .maxcontacts = 2 },
202 { .name = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
203 .quirks = MT_QUIRK_VALID_IS_INRANGE |
204 MT_QUIRK_SLOT_IS_CONTACTNUMBER,
205 .maxcontacts = 2 },
206 { .name = MT_CLS_INRANGE_CONTACTNUMBER,
207 .quirks = MT_QUIRK_VALID_IS_INRANGE |
208 MT_QUIRK_SLOT_IS_CONTACTNUMBER },
209 { .name = MT_CLS_WIN_8,
210 .quirks = MT_QUIRK_ALWAYS_VALID |
211 MT_QUIRK_IGNORE_DUPLICATES |
212 MT_QUIRK_HOVERING |
213 MT_QUIRK_CONTACT_CNT_ACCURATE },
214 { .name = MT_CLS_EXPORT_ALL_INPUTS,
215 .quirks = MT_QUIRK_ALWAYS_VALID |
216 MT_QUIRK_CONTACT_CNT_ACCURATE,
217 .export_all_inputs = true },
218 { .name = MT_CLS_WIN_8_DUAL,
219 .quirks = MT_QUIRK_ALWAYS_VALID |
220 MT_QUIRK_IGNORE_DUPLICATES |
221 MT_QUIRK_HOVERING |
222 MT_QUIRK_CONTACT_CNT_ACCURATE,
223 .export_all_inputs = true },
224
225 /*
226 * vendor specific classes
227 */
228 { .name = MT_CLS_3M,
229 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE |
230 MT_QUIRK_SLOT_IS_CONTACTID,
231 .sn_move = 2048,
232 .sn_width = 128,
233 .sn_height = 128,
234 .maxcontacts = 60,
235 },
236 { .name = MT_CLS_EGALAX,
237 .quirks = MT_QUIRK_SLOT_IS_CONTACTID |
238 MT_QUIRK_VALID_IS_INRANGE,
239 .sn_move = 4096,
240 .sn_pressure = 32,
241 },
242 { .name = MT_CLS_EGALAX_SERIAL,
243 .quirks = MT_QUIRK_SLOT_IS_CONTACTID |
244 MT_QUIRK_ALWAYS_VALID,
245 .sn_move = 4096,
246 .sn_pressure = 32,
247 },
248 { .name = MT_CLS_TOPSEED,
249 .quirks = MT_QUIRK_ALWAYS_VALID,
250 .is_indirect = true,
251 .maxcontacts = 2,
252 },
253 { .name = MT_CLS_PANASONIC,
254 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP,
255 .maxcontacts = 4 },
256 { .name = MT_CLS_GENERALTOUCH_TWOFINGERS,
257 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP |
258 MT_QUIRK_VALID_IS_INRANGE |
259 MT_QUIRK_SLOT_IS_CONTACTID,
260 .maxcontacts = 2
261 },
262 { .name = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
263 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP |
264 MT_QUIRK_SLOT_IS_CONTACTID
265 },
266
267 { .name = MT_CLS_FLATFROG,
268 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP |
269 MT_QUIRK_NO_AREA,
270 .sn_move = 2048,
271 .maxcontacts = 40,
272 },
273 { .name = MT_CLS_VTL,
274 .quirks = MT_QUIRK_ALWAYS_VALID |
275 MT_QUIRK_CONTACT_CNT_ACCURATE |
276 MT_QUIRK_FORCE_GET_FEATURE,
277 },
278 { }
279 };
280
281 static ssize_t mt_show_quirks(struct device *dev,
282 struct device_attribute *attr,
283 char *buf)
284 {
285 struct hid_device *hdev = to_hid_device(dev);
286 struct mt_device *td = hid_get_drvdata(hdev);
287
288 return sprintf(buf, "%u\n", td->mtclass.quirks);
289 }
290
291 static ssize_t mt_set_quirks(struct device *dev,
292 struct device_attribute *attr,
293 const char *buf, size_t count)
294 {
295 struct hid_device *hdev = to_hid_device(dev);
296 struct mt_device *td = hid_get_drvdata(hdev);
297
298 unsigned long val;
299
300 if (kstrtoul(buf, 0, &val))
301 return -EINVAL;
302
303 td->mtclass.quirks = val;
304
305 if (td->cc_index < 0)
306 td->mtclass.quirks &= ~MT_QUIRK_CONTACT_CNT_ACCURATE;
307
308 return count;
309 }
310
311 static DEVICE_ATTR(quirks, S_IWUSR | S_IRUGO, mt_show_quirks, mt_set_quirks);
312
313 static struct attribute *sysfs_attrs[] = {
314 &dev_attr_quirks.attr,
315 NULL
316 };
317
318 static struct attribute_group mt_attribute_group = {
319 .attrs = sysfs_attrs
320 };
321
322 static void mt_get_feature(struct hid_device *hdev, struct hid_report *report)
323 {
324 struct mt_device *td = hid_get_drvdata(hdev);
325 int ret, size = hid_report_len(report);
326 u8 *buf;
327
328 /*
329 * Do not fetch the feature report if the device has been explicitly
330 * marked as non-capable.
331 */
332 if (td->initial_quirks & HID_QUIRK_NO_INIT_REPORTS)
333 return;
334
335 buf = hid_alloc_report_buf(report, GFP_KERNEL);
336 if (!buf)
337 return;
338
339 ret = hid_hw_raw_request(hdev, report->id, buf, size,
340 HID_FEATURE_REPORT, HID_REQ_GET_REPORT);
341 if (ret < 0) {
342 dev_warn(&hdev->dev, "failed to fetch feature %d\n",
343 report->id);
344 } else {
345 ret = hid_report_raw_event(hdev, HID_FEATURE_REPORT, buf,
346 size, 0);
347 if (ret)
348 dev_warn(&hdev->dev, "failed to report feature\n");
349 }
350
351 kfree(buf);
352 }
353
354 static void mt_feature_mapping(struct hid_device *hdev,
355 struct hid_field *field, struct hid_usage *usage)
356 {
357 struct mt_device *td = hid_get_drvdata(hdev);
358
359 switch (usage->hid) {
360 case HID_DG_INPUTMODE:
361 /* Ignore if value index is out of bounds. */
362 if (usage->usage_index >= field->report_count) {
363 dev_err(&hdev->dev, "HID_DG_INPUTMODE out of range\n");
364 break;
365 }
366
367 if (td->inputmode < 0) {
368 td->inputmode = field->report->id;
369 td->inputmode_index = usage->usage_index;
370 } else {
371 /*
372 * Some elan panels wrongly declare 2 input mode
373 * features, and silently ignore when we set the
374 * value in the second field. Skip the second feature
375 * and hope for the best.
376 */
377 dev_info(&hdev->dev,
378 "Ignoring the extra HID_DG_INPUTMODE\n");
379 }
380
381 break;
382 case HID_DG_CONTACTMAX:
383 mt_get_feature(hdev, field->report);
384
385 td->maxcontact_report_id = field->report->id;
386 td->maxcontacts = field->value[0];
387 if (!td->maxcontacts &&
388 field->logical_maximum <= MT_MAX_MAXCONTACT)
389 td->maxcontacts = field->logical_maximum;
390 if (td->mtclass.maxcontacts)
391 /* check if the maxcontacts is given by the class */
392 td->maxcontacts = td->mtclass.maxcontacts;
393
394 break;
395 case HID_DG_BUTTONTYPE:
396 if (usage->usage_index >= field->report_count) {
397 dev_err(&hdev->dev, "HID_DG_BUTTONTYPE out of range\n");
398 break;
399 }
400
401 mt_get_feature(hdev, field->report);
402 if (field->value[usage->usage_index] == MT_BUTTONTYPE_CLICKPAD)
403 td->is_buttonpad = true;
404
405 break;
406 case 0xff0000c5:
407 /* Retrieve the Win8 blob once to enable some devices */
408 if (usage->usage_index == 0)
409 mt_get_feature(hdev, field->report);
410 break;
411 }
412 }
413
414 static void set_abs(struct input_dev *input, unsigned int code,
415 struct hid_field *field, int snratio)
416 {
417 int fmin = field->logical_minimum;
418 int fmax = field->logical_maximum;
419 int fuzz = snratio ? (fmax - fmin) / snratio : 0;
420 input_set_abs_params(input, code, fmin, fmax, fuzz, 0);
421 input_abs_set_res(input, code, hidinput_calc_abs_res(field, code));
422 }
423
424 static void mt_store_field(struct hid_usage *usage, struct mt_device *td,
425 struct hid_input *hi)
426 {
427 struct mt_fields *f = td->fields;
428
429 if (f->length >= HID_MAX_FIELDS)
430 return;
431
432 f->usages[f->length++] = usage->hid;
433 }
434
435 static int mt_touch_input_mapping(struct hid_device *hdev, struct hid_input *hi,
436 struct hid_field *field, struct hid_usage *usage,
437 unsigned long **bit, int *max)
438 {
439 struct mt_device *td = hid_get_drvdata(hdev);
440 struct mt_class *cls = &td->mtclass;
441 int code;
442 struct hid_usage *prev_usage = NULL;
443
444 if (field->application == HID_DG_TOUCHSCREEN)
445 td->mt_flags |= INPUT_MT_DIRECT;
446
447 /*
448 * Model touchscreens providing buttons as touchpads.
449 */
450 if (field->application == HID_DG_TOUCHPAD ||
451 (usage->hid & HID_USAGE_PAGE) == HID_UP_BUTTON) {
452 td->mt_flags |= INPUT_MT_POINTER;
453 td->inputmode_value = MT_INPUTMODE_TOUCHPAD;
454 }
455
456 /* count the buttons on touchpads */
457 if ((usage->hid & HID_USAGE_PAGE) == HID_UP_BUTTON)
458 td->buttons_count++;
459
460 if (usage->usage_index)
461 prev_usage = &field->usage[usage->usage_index - 1];
462
463 switch (usage->hid & HID_USAGE_PAGE) {
464
465 case HID_UP_GENDESK:
466 switch (usage->hid) {
467 case HID_GD_X:
468 if (prev_usage && (prev_usage->hid == usage->hid)) {
469 hid_map_usage(hi, usage, bit, max,
470 EV_ABS, ABS_MT_TOOL_X);
471 set_abs(hi->input, ABS_MT_TOOL_X, field,
472 cls->sn_move);
473 } else {
474 hid_map_usage(hi, usage, bit, max,
475 EV_ABS, ABS_MT_POSITION_X);
476 set_abs(hi->input, ABS_MT_POSITION_X, field,
477 cls->sn_move);
478 }
479
480 mt_store_field(usage, td, hi);
481 return 1;
482 case HID_GD_Y:
483 if (prev_usage && (prev_usage->hid == usage->hid)) {
484 hid_map_usage(hi, usage, bit, max,
485 EV_ABS, ABS_MT_TOOL_Y);
486 set_abs(hi->input, ABS_MT_TOOL_Y, field,
487 cls->sn_move);
488 } else {
489 hid_map_usage(hi, usage, bit, max,
490 EV_ABS, ABS_MT_POSITION_Y);
491 set_abs(hi->input, ABS_MT_POSITION_Y, field,
492 cls->sn_move);
493 }
494
495 mt_store_field(usage, td, hi);
496 return 1;
497 }
498 return 0;
499
500 case HID_UP_DIGITIZER:
501 switch (usage->hid) {
502 case HID_DG_INRANGE:
503 if (cls->quirks & MT_QUIRK_HOVERING) {
504 hid_map_usage(hi, usage, bit, max,
505 EV_ABS, ABS_MT_DISTANCE);
506 input_set_abs_params(hi->input,
507 ABS_MT_DISTANCE, 0, 1, 0, 0);
508 }
509 mt_store_field(usage, td, hi);
510 return 1;
511 case HID_DG_CONFIDENCE:
512 if ((cls->name == MT_CLS_WIN_8 ||
513 cls->name == MT_CLS_WIN_8_DUAL) &&
514 field->application == HID_DG_TOUCHPAD)
515 cls->quirks |= MT_QUIRK_CONFIDENCE;
516 mt_store_field(usage, td, hi);
517 return 1;
518 case HID_DG_TIPSWITCH:
519 hid_map_usage(hi, usage, bit, max, EV_KEY, BTN_TOUCH);
520 input_set_capability(hi->input, EV_KEY, BTN_TOUCH);
521 mt_store_field(usage, td, hi);
522 return 1;
523 case HID_DG_CONTACTID:
524 mt_store_field(usage, td, hi);
525 td->touches_by_report++;
526 td->mt_report_id = field->report->id;
527 return 1;
528 case HID_DG_WIDTH:
529 hid_map_usage(hi, usage, bit, max,
530 EV_ABS, ABS_MT_TOUCH_MAJOR);
531 if (!(cls->quirks & MT_QUIRK_NO_AREA))
532 set_abs(hi->input, ABS_MT_TOUCH_MAJOR, field,
533 cls->sn_width);
534 mt_store_field(usage, td, hi);
535 return 1;
536 case HID_DG_HEIGHT:
537 hid_map_usage(hi, usage, bit, max,
538 EV_ABS, ABS_MT_TOUCH_MINOR);
539 if (!(cls->quirks & MT_QUIRK_NO_AREA)) {
540 set_abs(hi->input, ABS_MT_TOUCH_MINOR, field,
541 cls->sn_height);
542 input_set_abs_params(hi->input,
543 ABS_MT_ORIENTATION, 0, 1, 0, 0);
544 }
545 mt_store_field(usage, td, hi);
546 return 1;
547 case HID_DG_TIPPRESSURE:
548 hid_map_usage(hi, usage, bit, max,
549 EV_ABS, ABS_MT_PRESSURE);
550 set_abs(hi->input, ABS_MT_PRESSURE, field,
551 cls->sn_pressure);
552 mt_store_field(usage, td, hi);
553 return 1;
554 case HID_DG_CONTACTCOUNT:
555 /* Ignore if indexes are out of bounds. */
556 if (field->index >= field->report->maxfield ||
557 usage->usage_index >= field->report_count)
558 return 1;
559 td->cc_index = field->index;
560 td->cc_value_index = usage->usage_index;
561 return 1;
562 case HID_DG_CONTACTMAX:
563 /* we don't set td->last_slot_field as contactcount and
564 * contact max are global to the report */
565 return -1;
566 case HID_DG_TOUCH:
567 /* Legacy devices use TIPSWITCH and not TOUCH.
568 * Let's just ignore this field. */
569 return -1;
570 }
571 /* let hid-input decide for the others */
572 return 0;
573
574 case HID_UP_BUTTON:
575 code = BTN_MOUSE + ((usage->hid - 1) & HID_USAGE);
576 /*
577 * MS PTP spec says that external buttons left and right have
578 * usages 2 and 3.
579 */
580 if ((cls->name == MT_CLS_WIN_8 ||
581 cls->name == MT_CLS_WIN_8_DUAL) &&
582 field->application == HID_DG_TOUCHPAD &&
583 (usage->hid & HID_USAGE) > 1)
584 code--;
585 hid_map_usage(hi, usage, bit, max, EV_KEY, code);
586 input_set_capability(hi->input, EV_KEY, code);
587 return 1;
588
589 case 0xff000000:
590 /* we do not want to map these: no input-oriented meaning */
591 return -1;
592 }
593
594 return 0;
595 }
596
597 static int mt_touch_input_mapped(struct hid_device *hdev, struct hid_input *hi,
598 struct hid_field *field, struct hid_usage *usage,
599 unsigned long **bit, int *max)
600 {
601 if (usage->type == EV_KEY || usage->type == EV_ABS)
602 set_bit(usage->type, hi->input->evbit);
603
604 return -1;
605 }
606
607 static int mt_compute_slot(struct mt_device *td, struct input_dev *input)
608 {
609 __s32 quirks = td->mtclass.quirks;
610
611 if (quirks & MT_QUIRK_SLOT_IS_CONTACTID)
612 return td->curdata.contactid;
613
614 if (quirks & MT_QUIRK_CYPRESS)
615 return cypress_compute_slot(td);
616
617 if (quirks & MT_QUIRK_SLOT_IS_CONTACTNUMBER)
618 return td->num_received;
619
620 if (quirks & MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE)
621 return td->curdata.contactid - 1;
622
623 return input_mt_get_slot_by_key(input, td->curdata.contactid);
624 }
625
626 /*
627 * this function is called when a whole contact has been processed,
628 * so that it can assign it to a slot and store the data there
629 */
630 static void mt_complete_slot(struct mt_device *td, struct input_dev *input)
631 {
632 if ((td->mtclass.quirks & MT_QUIRK_CONTACT_CNT_ACCURATE) &&
633 td->num_received >= td->num_expected)
634 return;
635
636 if (td->curvalid || (td->mtclass.quirks & MT_QUIRK_ALWAYS_VALID)) {
637 int active;
638 int slotnum = mt_compute_slot(td, input);
639 struct mt_slot *s = &td->curdata;
640 struct input_mt *mt = input->mt;
641
642 if (slotnum < 0 || slotnum >= td->maxcontacts)
643 return;
644
645 if ((td->mtclass.quirks & MT_QUIRK_IGNORE_DUPLICATES) && mt) {
646 struct input_mt_slot *slot = &mt->slots[slotnum];
647 if (input_mt_is_active(slot) &&
648 input_mt_is_used(mt, slot))
649 return;
650 }
651
652 if (!(td->mtclass.quirks & MT_QUIRK_CONFIDENCE))
653 s->confidence_state = 1;
654 active = (s->touch_state || s->inrange_state) &&
655 s->confidence_state;
656
657 input_mt_slot(input, slotnum);
658 input_mt_report_slot_state(input, MT_TOOL_FINGER, active);
659 if (active) {
660 /* this finger is in proximity of the sensor */
661 int wide = (s->w > s->h);
662 /* divided by two to match visual scale of touch */
663 int major = max(s->w, s->h) >> 1;
664 int minor = min(s->w, s->h) >> 1;
665
666 input_event(input, EV_ABS, ABS_MT_POSITION_X, s->x);
667 input_event(input, EV_ABS, ABS_MT_POSITION_Y, s->y);
668 input_event(input, EV_ABS, ABS_MT_TOOL_X, s->cx);
669 input_event(input, EV_ABS, ABS_MT_TOOL_Y, s->cy);
670 input_event(input, EV_ABS, ABS_MT_DISTANCE,
671 !s->touch_state);
672 input_event(input, EV_ABS, ABS_MT_ORIENTATION, wide);
673 input_event(input, EV_ABS, ABS_MT_PRESSURE, s->p);
674 input_event(input, EV_ABS, ABS_MT_TOUCH_MAJOR, major);
675 input_event(input, EV_ABS, ABS_MT_TOUCH_MINOR, minor);
676 }
677 }
678
679 td->num_received++;
680 }
681
682 /*
683 * this function is called when a whole packet has been received and processed,
684 * so that it can decide what to send to the input layer.
685 */
686 static void mt_sync_frame(struct mt_device *td, struct input_dev *input)
687 {
688 input_mt_sync_frame(input);
689 input_sync(input);
690 td->num_received = 0;
691 }
692
693 static int mt_touch_event(struct hid_device *hid, struct hid_field *field,
694 struct hid_usage *usage, __s32 value)
695 {
696 /* we will handle the hidinput part later, now remains hiddev */
697 if (hid->claimed & HID_CLAIMED_HIDDEV && hid->hiddev_hid_event)
698 hid->hiddev_hid_event(hid, field, usage, value);
699
700 return 1;
701 }
702
703 static void mt_process_mt_event(struct hid_device *hid, struct hid_field *field,
704 struct hid_usage *usage, __s32 value)
705 {
706 struct mt_device *td = hid_get_drvdata(hid);
707 __s32 quirks = td->mtclass.quirks;
708 struct input_dev *input = field->hidinput->input;
709
710 if (hid->claimed & HID_CLAIMED_INPUT) {
711 switch (usage->hid) {
712 case HID_DG_INRANGE:
713 if (quirks & MT_QUIRK_VALID_IS_INRANGE)
714 td->curvalid = value;
715 if (quirks & MT_QUIRK_HOVERING)
716 td->curdata.inrange_state = value;
717 break;
718 case HID_DG_TIPSWITCH:
719 if (quirks & MT_QUIRK_NOT_SEEN_MEANS_UP)
720 td->curvalid = value;
721 td->curdata.touch_state = value;
722 break;
723 case HID_DG_CONFIDENCE:
724 if (quirks & MT_QUIRK_CONFIDENCE)
725 td->curdata.confidence_state = value;
726 if (quirks & MT_QUIRK_VALID_IS_CONFIDENCE)
727 td->curvalid = value;
728 break;
729 case HID_DG_CONTACTID:
730 td->curdata.contactid = value;
731 break;
732 case HID_DG_TIPPRESSURE:
733 td->curdata.p = value;
734 break;
735 case HID_GD_X:
736 if (usage->code == ABS_MT_TOOL_X)
737 td->curdata.cx = value;
738 else
739 td->curdata.x = value;
740 break;
741 case HID_GD_Y:
742 if (usage->code == ABS_MT_TOOL_Y)
743 td->curdata.cy = value;
744 else
745 td->curdata.y = value;
746 break;
747 case HID_DG_WIDTH:
748 td->curdata.w = value;
749 break;
750 case HID_DG_HEIGHT:
751 td->curdata.h = value;
752 break;
753 case HID_DG_CONTACTCOUNT:
754 break;
755 case HID_DG_TOUCH:
756 /* do nothing */
757 break;
758
759 default:
760 if (usage->type)
761 input_event(input, usage->type, usage->code,
762 value);
763 return;
764 }
765
766 if (usage->usage_index + 1 == field->report_count) {
767 /* we only take into account the last report. */
768 if (usage->hid == td->last_slot_field)
769 mt_complete_slot(td, field->hidinput->input);
770 }
771
772 }
773 }
774
775 static void mt_touch_report(struct hid_device *hid, struct hid_report *report)
776 {
777 struct mt_device *td = hid_get_drvdata(hid);
778 struct hid_field *field;
779 unsigned count;
780 int r, n;
781
782 /*
783 * Includes multi-packet support where subsequent
784 * packets are sent with zero contactcount.
785 */
786 if (td->cc_index >= 0) {
787 struct hid_field *field = report->field[td->cc_index];
788 int value = field->value[td->cc_value_index];
789 if (value)
790 td->num_expected = value;
791 }
792
793 for (r = 0; r < report->maxfield; r++) {
794 field = report->field[r];
795 count = field->report_count;
796
797 if (!(HID_MAIN_ITEM_VARIABLE & field->flags))
798 continue;
799
800 for (n = 0; n < count; n++)
801 mt_process_mt_event(hid, field, &field->usage[n],
802 field->value[n]);
803 }
804
805 if (td->num_received >= td->num_expected)
806 mt_sync_frame(td, report->field[0]->hidinput->input);
807 }
808
809 static int mt_touch_input_configured(struct hid_device *hdev,
810 struct hid_input *hi)
811 {
812 struct mt_device *td = hid_get_drvdata(hdev);
813 struct mt_class *cls = &td->mtclass;
814 struct input_dev *input = hi->input;
815 int ret;
816
817 if (!td->maxcontacts)
818 td->maxcontacts = MT_DEFAULT_MAXCONTACT;
819
820 mt_post_parse(td);
821 if (td->serial_maybe)
822 mt_post_parse_default_settings(td);
823
824 if (cls->is_indirect)
825 td->mt_flags |= INPUT_MT_POINTER;
826
827 if (cls->quirks & MT_QUIRK_NOT_SEEN_MEANS_UP)
828 td->mt_flags |= INPUT_MT_DROP_UNUSED;
829
830 /* check for clickpads */
831 if ((td->mt_flags & INPUT_MT_POINTER) && (td->buttons_count == 1))
832 td->is_buttonpad = true;
833
834 if (td->is_buttonpad)
835 __set_bit(INPUT_PROP_BUTTONPAD, input->propbit);
836
837 ret = input_mt_init_slots(input, td->maxcontacts, td->mt_flags);
838 if (ret)
839 return ret;
840
841 td->mt_flags = 0;
842 return 0;
843 }
844
845 static int mt_input_mapping(struct hid_device *hdev, struct hid_input *hi,
846 struct hid_field *field, struct hid_usage *usage,
847 unsigned long **bit, int *max)
848 {
849 struct mt_device *td = hid_get_drvdata(hdev);
850
851 /*
852 * If mtclass.export_all_inputs is not set, only map fields from
853 * TouchScreen or TouchPad collections. We need to ignore fields
854 * that belong to other collections such as Mouse that might have
855 * the same GenericDesktop usages.
856 */
857 if (!td->mtclass.export_all_inputs &&
858 field->application != HID_DG_TOUCHSCREEN &&
859 field->application != HID_DG_PEN &&
860 field->application != HID_DG_TOUCHPAD &&
861 field->application != HID_GD_KEYBOARD &&
862 field->application != HID_CP_CONSUMER_CONTROL)
863 return -1;
864
865 /*
866 * some egalax touchscreens have "application == HID_DG_TOUCHSCREEN"
867 * for the stylus.
868 * The check for mt_report_id ensures we don't process
869 * HID_DG_CONTACTCOUNT from the pen report as it is outside the physical
870 * collection, but within the report ID.
871 */
872 if (field->physical == HID_DG_STYLUS)
873 return 0;
874 else if ((field->physical == 0) &&
875 (field->report->id != td->mt_report_id) &&
876 (td->mt_report_id != -1))
877 return 0;
878
879 if (field->application == HID_DG_TOUCHSCREEN ||
880 field->application == HID_DG_TOUCHPAD)
881 return mt_touch_input_mapping(hdev, hi, field, usage, bit, max);
882
883 /* let hid-core decide for the others */
884 return 0;
885 }
886
887 static int mt_input_mapped(struct hid_device *hdev, struct hid_input *hi,
888 struct hid_field *field, struct hid_usage *usage,
889 unsigned long **bit, int *max)
890 {
891 /*
892 * some egalax touchscreens have "application == HID_DG_TOUCHSCREEN"
893 * for the stylus.
894 */
895 if (field->physical == HID_DG_STYLUS)
896 return 0;
897
898 if (field->application == HID_DG_TOUCHSCREEN ||
899 field->application == HID_DG_TOUCHPAD)
900 return mt_touch_input_mapped(hdev, hi, field, usage, bit, max);
901
902 /* let hid-core decide for the others */
903 return 0;
904 }
905
906 static int mt_event(struct hid_device *hid, struct hid_field *field,
907 struct hid_usage *usage, __s32 value)
908 {
909 struct mt_device *td = hid_get_drvdata(hid);
910
911 if (field->report->id == td->mt_report_id)
912 return mt_touch_event(hid, field, usage, value);
913
914 return 0;
915 }
916
917 static void mt_report(struct hid_device *hid, struct hid_report *report)
918 {
919 struct mt_device *td = hid_get_drvdata(hid);
920 struct hid_field *field = report->field[0];
921
922 if (!(hid->claimed & HID_CLAIMED_INPUT))
923 return;
924
925 if (report->id == td->mt_report_id)
926 return mt_touch_report(hid, report);
927
928 if (field && field->hidinput && field->hidinput->input)
929 input_sync(field->hidinput->input);
930 }
931
932 static void mt_set_input_mode(struct hid_device *hdev)
933 {
934 struct mt_device *td = hid_get_drvdata(hdev);
935 struct hid_report *r;
936 struct hid_report_enum *re;
937 struct mt_class *cls = &td->mtclass;
938 char *buf;
939 int report_len;
940
941 if (td->inputmode < 0)
942 return;
943
944 re = &(hdev->report_enum[HID_FEATURE_REPORT]);
945 r = re->report_id_hash[td->inputmode];
946 if (r) {
947 if (cls->quirks & MT_QUIRK_FORCE_GET_FEATURE) {
948 report_len = hid_report_len(r);
949 buf = hid_alloc_report_buf(r, GFP_KERNEL);
950 if (!buf) {
951 hid_err(hdev, "failed to allocate buffer for report\n");
952 return;
953 }
954 hid_hw_raw_request(hdev, r->id, buf, report_len,
955 HID_FEATURE_REPORT,
956 HID_REQ_GET_REPORT);
957 kfree(buf);
958 }
959 r->field[0]->value[td->inputmode_index] = td->inputmode_value;
960 hid_hw_request(hdev, r, HID_REQ_SET_REPORT);
961 }
962 }
963
964 static void mt_set_maxcontacts(struct hid_device *hdev)
965 {
966 struct mt_device *td = hid_get_drvdata(hdev);
967 struct hid_report *r;
968 struct hid_report_enum *re;
969 int fieldmax, max;
970
971 if (td->maxcontact_report_id < 0)
972 return;
973
974 if (!td->mtclass.maxcontacts)
975 return;
976
977 re = &hdev->report_enum[HID_FEATURE_REPORT];
978 r = re->report_id_hash[td->maxcontact_report_id];
979 if (r) {
980 max = td->mtclass.maxcontacts;
981 fieldmax = r->field[0]->logical_maximum;
982 max = min(fieldmax, max);
983 if (r->field[0]->value[0] != max) {
984 r->field[0]->value[0] = max;
985 hid_hw_request(hdev, r, HID_REQ_SET_REPORT);
986 }
987 }
988 }
989
990 static void mt_post_parse_default_settings(struct mt_device *td)
991 {
992 __s32 quirks = td->mtclass.quirks;
993
994 /* unknown serial device needs special quirks */
995 if (td->touches_by_report == 1) {
996 quirks |= MT_QUIRK_ALWAYS_VALID;
997 quirks &= ~MT_QUIRK_NOT_SEEN_MEANS_UP;
998 quirks &= ~MT_QUIRK_VALID_IS_INRANGE;
999 quirks &= ~MT_QUIRK_VALID_IS_CONFIDENCE;
1000 quirks &= ~MT_QUIRK_CONTACT_CNT_ACCURATE;
1001 }
1002
1003 td->mtclass.quirks = quirks;
1004 }
1005
1006 static void mt_post_parse(struct mt_device *td)
1007 {
1008 struct mt_fields *f = td->fields;
1009 struct mt_class *cls = &td->mtclass;
1010
1011 if (td->touches_by_report > 0) {
1012 int field_count_per_touch = f->length / td->touches_by_report;
1013 td->last_slot_field = f->usages[field_count_per_touch - 1];
1014 }
1015
1016 if (td->cc_index < 0)
1017 cls->quirks &= ~MT_QUIRK_CONTACT_CNT_ACCURATE;
1018 }
1019
1020 static int mt_input_configured(struct hid_device *hdev, struct hid_input *hi)
1021 {
1022 struct mt_device *td = hid_get_drvdata(hdev);
1023 char *name;
1024 const char *suffix = NULL;
1025 struct hid_field *field = hi->report->field[0];
1026 int ret;
1027
1028 if (hi->report->id == td->mt_report_id) {
1029 ret = mt_touch_input_configured(hdev, hi);
1030 if (ret)
1031 return ret;
1032 }
1033
1034 /*
1035 * some egalax touchscreens have "application == HID_DG_TOUCHSCREEN"
1036 * for the stylus. Check this first, and then rely on the application
1037 * field.
1038 */
1039 if (hi->report->field[0]->physical == HID_DG_STYLUS) {
1040 suffix = "Pen";
1041 /* force BTN_STYLUS to allow tablet matching in udev */
1042 __set_bit(BTN_STYLUS, hi->input->keybit);
1043 } else {
1044 switch (field->application) {
1045 case HID_GD_KEYBOARD:
1046 suffix = "Keyboard";
1047 break;
1048 case HID_GD_KEYPAD:
1049 suffix = "Keypad";
1050 break;
1051 case HID_GD_MOUSE:
1052 suffix = "Mouse";
1053 break;
1054 case HID_DG_STYLUS:
1055 suffix = "Pen";
1056 /* force BTN_STYLUS to allow tablet matching in udev */
1057 __set_bit(BTN_STYLUS, hi->input->keybit);
1058 break;
1059 case HID_DG_TOUCHSCREEN:
1060 /* we do not set suffix = "Touchscreen" */
1061 break;
1062 case HID_DG_TOUCHPAD:
1063 suffix = "Touchpad";
1064 break;
1065 case HID_GD_SYSTEM_CONTROL:
1066 suffix = "System Control";
1067 break;
1068 case HID_CP_CONSUMER_CONTROL:
1069 suffix = "Consumer Control";
1070 break;
1071 default:
1072 suffix = "UNKNOWN";
1073 break;
1074 }
1075 }
1076
1077 if (suffix) {
1078 name = devm_kzalloc(&hi->input->dev,
1079 strlen(hdev->name) + strlen(suffix) + 2,
1080 GFP_KERNEL);
1081 if (name) {
1082 sprintf(name, "%s %s", hdev->name, suffix);
1083 hi->input->name = name;
1084 }
1085 }
1086
1087 return 0;
1088 }
1089
1090 static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id)
1091 {
1092 int ret, i;
1093 struct mt_device *td;
1094 struct mt_class *mtclass = mt_classes; /* MT_CLS_DEFAULT */
1095
1096 for (i = 0; mt_classes[i].name ; i++) {
1097 if (id->driver_data == mt_classes[i].name) {
1098 mtclass = &(mt_classes[i]);
1099 break;
1100 }
1101 }
1102
1103 td = devm_kzalloc(&hdev->dev, sizeof(struct mt_device), GFP_KERNEL);
1104 if (!td) {
1105 dev_err(&hdev->dev, "cannot allocate multitouch data\n");
1106 return -ENOMEM;
1107 }
1108 td->mtclass = *mtclass;
1109 td->inputmode = -1;
1110 td->maxcontact_report_id = -1;
1111 td->inputmode_value = MT_INPUTMODE_TOUCHSCREEN;
1112 td->cc_index = -1;
1113 td->mt_report_id = -1;
1114 hid_set_drvdata(hdev, td);
1115
1116 td->fields = devm_kzalloc(&hdev->dev, sizeof(struct mt_fields),
1117 GFP_KERNEL);
1118 if (!td->fields) {
1119 dev_err(&hdev->dev, "cannot allocate multitouch fields data\n");
1120 return -ENOMEM;
1121 }
1122
1123 if (id->vendor == HID_ANY_ID && id->product == HID_ANY_ID)
1124 td->serial_maybe = true;
1125
1126 /*
1127 * Store the initial quirk state
1128 */
1129 td->initial_quirks = hdev->quirks;
1130
1131 /* This allows the driver to correctly support devices
1132 * that emit events over several HID messages.
1133 */
1134 hdev->quirks |= HID_QUIRK_NO_INPUT_SYNC;
1135
1136 /*
1137 * This allows the driver to handle different input sensors
1138 * that emits events through different reports on the same HID
1139 * device.
1140 */
1141 hdev->quirks |= HID_QUIRK_MULTI_INPUT;
1142 hdev->quirks |= HID_QUIRK_NO_EMPTY_INPUT;
1143
1144 /*
1145 * Some multitouch screens do not like to be polled for input
1146 * reports. Fortunately, the Win8 spec says that all touches
1147 * should be sent during each report, making the initialization
1148 * of input reports unnecessary. For Win7 devices, well, let's hope
1149 * they will still be happy (this is only be a problem if a touch
1150 * was already there while probing the device).
1151 *
1152 * In addition some touchpads do not behave well if we read
1153 * all feature reports from them. Instead we prevent
1154 * initial report fetching and then selectively fetch each
1155 * report we are interested in.
1156 */
1157 hdev->quirks |= HID_QUIRK_NO_INIT_REPORTS;
1158
1159 ret = hid_parse(hdev);
1160 if (ret != 0)
1161 return ret;
1162
1163 ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
1164 if (ret)
1165 return ret;
1166
1167 ret = sysfs_create_group(&hdev->dev.kobj, &mt_attribute_group);
1168 if (ret)
1169 dev_warn(&hdev->dev, "Cannot allocate sysfs group for %s\n",
1170 hdev->name);
1171
1172 mt_set_maxcontacts(hdev);
1173 mt_set_input_mode(hdev);
1174
1175 /* release .fields memory as it is not used anymore */
1176 devm_kfree(&hdev->dev, td->fields);
1177 td->fields = NULL;
1178
1179 return 0;
1180 }
1181
1182 #ifdef CONFIG_PM
1183 static void mt_release_contacts(struct hid_device *hid)
1184 {
1185 struct hid_input *hidinput;
1186
1187 list_for_each_entry(hidinput, &hid->inputs, list) {
1188 struct input_dev *input_dev = hidinput->input;
1189 struct input_mt *mt = input_dev->mt;
1190 int i;
1191
1192 if (mt) {
1193 for (i = 0; i < mt->num_slots; i++) {
1194 input_mt_slot(input_dev, i);
1195 input_mt_report_slot_state(input_dev,
1196 MT_TOOL_FINGER,
1197 false);
1198 }
1199 input_mt_sync_frame(input_dev);
1200 input_sync(input_dev);
1201 }
1202 }
1203 }
1204
1205 static int mt_reset_resume(struct hid_device *hdev)
1206 {
1207 mt_release_contacts(hdev);
1208 mt_set_maxcontacts(hdev);
1209 mt_set_input_mode(hdev);
1210 return 0;
1211 }
1212
1213 static int mt_resume(struct hid_device *hdev)
1214 {
1215 /* Some Elan legacy devices require SET_IDLE to be set on resume.
1216 * It should be safe to send it to other devices too.
1217 * Tested on 3M, Stantum, Cypress, Zytronic, eGalax, and Elan panels. */
1218
1219 hid_hw_idle(hdev, 0, 0, HID_REQ_SET_IDLE);
1220
1221 return 0;
1222 }
1223 #endif
1224
1225 static void mt_remove(struct hid_device *hdev)
1226 {
1227 struct mt_device *td = hid_get_drvdata(hdev);
1228
1229 sysfs_remove_group(&hdev->dev.kobj, &mt_attribute_group);
1230 hid_hw_stop(hdev);
1231 hdev->quirks = td->initial_quirks;
1232 }
1233
1234 /*
1235 * This list contains only:
1236 * - VID/PID of products not working with the default multitouch handling
1237 * - 2 generic rules.
1238 * So there is no point in adding here any device with MT_CLS_DEFAULT.
1239 */
1240 static const struct hid_device_id mt_devices[] = {
1241
1242 /* 3M panels */
1243 { .driver_data = MT_CLS_3M,
1244 MT_USB_DEVICE(USB_VENDOR_ID_3M,
1245 USB_DEVICE_ID_3M1968) },
1246 { .driver_data = MT_CLS_3M,
1247 MT_USB_DEVICE(USB_VENDOR_ID_3M,
1248 USB_DEVICE_ID_3M2256) },
1249 { .driver_data = MT_CLS_3M,
1250 MT_USB_DEVICE(USB_VENDOR_ID_3M,
1251 USB_DEVICE_ID_3M3266) },
1252
1253 /* Alps devices */
1254 { .driver_data = MT_CLS_WIN_8_DUAL,
1255 HID_DEVICE(BUS_I2C, HID_GROUP_MULTITOUCH_WIN_8,
1256 USB_VENDOR_ID_ALPS_JP,
1257 HID_DEVICE_ID_ALPS_U1_DUAL_PTP) },
1258 { .driver_data = MT_CLS_WIN_8_DUAL,
1259 HID_DEVICE(BUS_I2C, HID_GROUP_MULTITOUCH_WIN_8,
1260 USB_VENDOR_ID_ALPS_JP,
1261 HID_DEVICE_ID_ALPS_U1_DUAL_3BTN_PTP) },
1262 { .driver_data = MT_CLS_WIN_8_DUAL,
1263 HID_DEVICE(BUS_I2C, HID_GROUP_MULTITOUCH_WIN_8,
1264 USB_VENDOR_ID_ALPS_JP,
1265 HID_DEVICE_ID_ALPS_U1_PTP_2) },
1266
1267 /* Anton devices */
1268 { .driver_data = MT_CLS_EXPORT_ALL_INPUTS,
1269 MT_USB_DEVICE(USB_VENDOR_ID_ANTON,
1270 USB_DEVICE_ID_ANTON_TOUCH_PAD) },
1271
1272 /* Atmel panels */
1273 { .driver_data = MT_CLS_SERIAL,
1274 MT_USB_DEVICE(USB_VENDOR_ID_ATMEL,
1275 USB_DEVICE_ID_ATMEL_MXT_DIGITIZER) },
1276
1277 /* Baanto multitouch devices */
1278 { .driver_data = MT_CLS_NSMU,
1279 MT_USB_DEVICE(USB_VENDOR_ID_BAANTO,
1280 USB_DEVICE_ID_BAANTO_MT_190W2) },
1281
1282 /* Cando panels */
1283 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
1284 MT_USB_DEVICE(USB_VENDOR_ID_CANDO,
1285 USB_DEVICE_ID_CANDO_MULTI_TOUCH) },
1286 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
1287 MT_USB_DEVICE(USB_VENDOR_ID_CANDO,
1288 USB_DEVICE_ID_CANDO_MULTI_TOUCH_15_6) },
1289
1290 /* Chunghwa Telecom touch panels */
1291 { .driver_data = MT_CLS_NSMU,
1292 MT_USB_DEVICE(USB_VENDOR_ID_CHUNGHWAT,
1293 USB_DEVICE_ID_CHUNGHWAT_MULTITOUCH) },
1294
1295 /* CJTouch panels */
1296 { .driver_data = MT_CLS_NSMU,
1297 MT_USB_DEVICE(USB_VENDOR_ID_CJTOUCH,
1298 USB_DEVICE_ID_CJTOUCH_MULTI_TOUCH_0020) },
1299 { .driver_data = MT_CLS_NSMU,
1300 MT_USB_DEVICE(USB_VENDOR_ID_CJTOUCH,
1301 USB_DEVICE_ID_CJTOUCH_MULTI_TOUCH_0040) },
1302
1303 /* CVTouch panels */
1304 { .driver_data = MT_CLS_NSMU,
1305 MT_USB_DEVICE(USB_VENDOR_ID_CVTOUCH,
1306 USB_DEVICE_ID_CVTOUCH_SCREEN) },
1307
1308 /* eGalax devices (resistive) */
1309 { .driver_data = MT_CLS_EGALAX,
1310 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1311 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_480D) },
1312 { .driver_data = MT_CLS_EGALAX,
1313 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1314 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_480E) },
1315
1316 /* eGalax devices (capacitive) */
1317 { .driver_data = MT_CLS_EGALAX_SERIAL,
1318 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1319 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7207) },
1320 { .driver_data = MT_CLS_EGALAX,
1321 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1322 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_720C) },
1323 { .driver_data = MT_CLS_EGALAX_SERIAL,
1324 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1325 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7224) },
1326 { .driver_data = MT_CLS_EGALAX_SERIAL,
1327 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1328 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_722A) },
1329 { .driver_data = MT_CLS_EGALAX_SERIAL,
1330 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1331 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_725E) },
1332 { .driver_data = MT_CLS_EGALAX_SERIAL,
1333 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1334 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7262) },
1335 { .driver_data = MT_CLS_EGALAX,
1336 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1337 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_726B) },
1338 { .driver_data = MT_CLS_EGALAX,
1339 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1340 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72A1) },
1341 { .driver_data = MT_CLS_EGALAX_SERIAL,
1342 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1343 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72AA) },
1344 { .driver_data = MT_CLS_EGALAX,
1345 HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
1346 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72C4) },
1347 { .driver_data = MT_CLS_EGALAX,
1348 HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
1349 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72D0) },
1350 { .driver_data = MT_CLS_EGALAX,
1351 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1352 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72FA) },
1353 { .driver_data = MT_CLS_EGALAX,
1354 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1355 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7302) },
1356 { .driver_data = MT_CLS_EGALAX_SERIAL,
1357 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1358 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7349) },
1359 { .driver_data = MT_CLS_EGALAX_SERIAL,
1360 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1361 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_73F7) },
1362 { .driver_data = MT_CLS_EGALAX_SERIAL,
1363 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1364 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_A001) },
1365
1366 /* Elitegroup panel */
1367 { .driver_data = MT_CLS_SERIAL,
1368 MT_USB_DEVICE(USB_VENDOR_ID_ELITEGROUP,
1369 USB_DEVICE_ID_ELITEGROUP_05D8) },
1370
1371 /* Flatfrog Panels */
1372 { .driver_data = MT_CLS_FLATFROG,
1373 MT_USB_DEVICE(USB_VENDOR_ID_FLATFROG,
1374 USB_DEVICE_ID_MULTITOUCH_3200) },
1375
1376 /* FocalTech Panels */
1377 { .driver_data = MT_CLS_SERIAL,
1378 MT_USB_DEVICE(USB_VENDOR_ID_CYGNAL,
1379 USB_DEVICE_ID_FOCALTECH_FTXXXX_MULTITOUCH) },
1380
1381 /* GeneralTouch panel */
1382 { .driver_data = MT_CLS_GENERALTOUCH_TWOFINGERS,
1383 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
1384 USB_DEVICE_ID_GENERAL_TOUCH_WIN7_TWOFINGERS) },
1385 { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
1386 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
1387 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PWT_TENFINGERS) },
1388 { .driver_data = MT_CLS_GENERALTOUCH_TWOFINGERS,
1389 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
1390 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_0101) },
1391 { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
1392 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
1393 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_0102) },
1394 { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
1395 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
1396 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_0106) },
1397 { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
1398 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
1399 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_010A) },
1400 { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
1401 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
1402 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_E100) },
1403
1404 /* Gametel game controller */
1405 { .driver_data = MT_CLS_NSMU,
1406 MT_BT_DEVICE(USB_VENDOR_ID_FRUCTEL,
1407 USB_DEVICE_ID_GAMETEL_MT_MODE) },
1408
1409 /* GoodTouch panels */
1410 { .driver_data = MT_CLS_NSMU,
1411 MT_USB_DEVICE(USB_VENDOR_ID_GOODTOUCH,
1412 USB_DEVICE_ID_GOODTOUCH_000f) },
1413
1414 /* Hanvon panels */
1415 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID,
1416 MT_USB_DEVICE(USB_VENDOR_ID_HANVON_ALT,
1417 USB_DEVICE_ID_HANVON_ALT_MULTITOUCH) },
1418
1419 /* Ilitek dual touch panel */
1420 { .driver_data = MT_CLS_NSMU,
1421 MT_USB_DEVICE(USB_VENDOR_ID_ILITEK,
1422 USB_DEVICE_ID_ILITEK_MULTITOUCH) },
1423
1424 /* MosArt panels */
1425 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
1426 MT_USB_DEVICE(USB_VENDOR_ID_ASUS,
1427 USB_DEVICE_ID_ASUS_T91MT)},
1428 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
1429 MT_USB_DEVICE(USB_VENDOR_ID_ASUS,
1430 USB_DEVICE_ID_ASUSTEK_MULTITOUCH_YFO) },
1431 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
1432 MT_USB_DEVICE(USB_VENDOR_ID_TURBOX,
1433 USB_DEVICE_ID_TURBOX_TOUCHSCREEN_MOSART) },
1434
1435 /* Panasonic panels */
1436 { .driver_data = MT_CLS_PANASONIC,
1437 MT_USB_DEVICE(USB_VENDOR_ID_PANASONIC,
1438 USB_DEVICE_ID_PANABOARD_UBT780) },
1439 { .driver_data = MT_CLS_PANASONIC,
1440 MT_USB_DEVICE(USB_VENDOR_ID_PANASONIC,
1441 USB_DEVICE_ID_PANABOARD_UBT880) },
1442
1443 /* Novatek Panel */
1444 { .driver_data = MT_CLS_NSMU,
1445 MT_USB_DEVICE(USB_VENDOR_ID_NOVATEK,
1446 USB_DEVICE_ID_NOVATEK_PCT) },
1447
1448 /* Ntrig Panel */
1449 { .driver_data = MT_CLS_NSMU,
1450 HID_DEVICE(BUS_I2C, HID_GROUP_MULTITOUCH_WIN_8,
1451 USB_VENDOR_ID_NTRIG, 0x1b05) },
1452
1453 /* PixArt optical touch screen */
1454 { .driver_data = MT_CLS_INRANGE_CONTACTNUMBER,
1455 MT_USB_DEVICE(USB_VENDOR_ID_PIXART,
1456 USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN) },
1457 { .driver_data = MT_CLS_INRANGE_CONTACTNUMBER,
1458 MT_USB_DEVICE(USB_VENDOR_ID_PIXART,
1459 USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN1) },
1460 { .driver_data = MT_CLS_INRANGE_CONTACTNUMBER,
1461 MT_USB_DEVICE(USB_VENDOR_ID_PIXART,
1462 USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN2) },
1463
1464 /* PixCir-based panels */
1465 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID,
1466 MT_USB_DEVICE(USB_VENDOR_ID_CANDO,
1467 USB_DEVICE_ID_CANDO_PIXCIR_MULTI_TOUCH) },
1468
1469 /* Quanta-based panels */
1470 { .driver_data = MT_CLS_CONFIDENCE_CONTACT_ID,
1471 MT_USB_DEVICE(USB_VENDOR_ID_QUANTA,
1472 USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3001) },
1473
1474 /* Stantum panels */
1475 { .driver_data = MT_CLS_CONFIDENCE,
1476 MT_USB_DEVICE(USB_VENDOR_ID_STANTUM_STM,
1477 USB_DEVICE_ID_MTP_STM)},
1478
1479 /* TopSeed panels */
1480 { .driver_data = MT_CLS_TOPSEED,
1481 MT_USB_DEVICE(USB_VENDOR_ID_TOPSEED2,
1482 USB_DEVICE_ID_TOPSEED2_PERIPAD_701) },
1483
1484 /* Touch International panels */
1485 { .driver_data = MT_CLS_NSMU,
1486 MT_USB_DEVICE(USB_VENDOR_ID_TOUCH_INTL,
1487 USB_DEVICE_ID_TOUCH_INTL_MULTI_TOUCH) },
1488
1489 /* Unitec panels */
1490 { .driver_data = MT_CLS_NSMU,
1491 MT_USB_DEVICE(USB_VENDOR_ID_UNITEC,
1492 USB_DEVICE_ID_UNITEC_USB_TOUCH_0709) },
1493 { .driver_data = MT_CLS_NSMU,
1494 MT_USB_DEVICE(USB_VENDOR_ID_UNITEC,
1495 USB_DEVICE_ID_UNITEC_USB_TOUCH_0A19) },
1496
1497 /* VTL panels */
1498 { .driver_data = MT_CLS_VTL,
1499 MT_USB_DEVICE(USB_VENDOR_ID_VTL,
1500 USB_DEVICE_ID_VTL_MULTITOUCH_FF3F) },
1501
1502 /* Wistron panels */
1503 { .driver_data = MT_CLS_NSMU,
1504 MT_USB_DEVICE(USB_VENDOR_ID_WISTRON,
1505 USB_DEVICE_ID_WISTRON_OPTICAL_TOUCH) },
1506
1507 /* XAT */
1508 { .driver_data = MT_CLS_NSMU,
1509 MT_USB_DEVICE(USB_VENDOR_ID_XAT,
1510 USB_DEVICE_ID_XAT_CSR) },
1511
1512 /* Xiroku */
1513 { .driver_data = MT_CLS_NSMU,
1514 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1515 USB_DEVICE_ID_XIROKU_SPX) },
1516 { .driver_data = MT_CLS_NSMU,
1517 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1518 USB_DEVICE_ID_XIROKU_MPX) },
1519 { .driver_data = MT_CLS_NSMU,
1520 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1521 USB_DEVICE_ID_XIROKU_CSR) },
1522 { .driver_data = MT_CLS_NSMU,
1523 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1524 USB_DEVICE_ID_XIROKU_SPX1) },
1525 { .driver_data = MT_CLS_NSMU,
1526 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1527 USB_DEVICE_ID_XIROKU_MPX1) },
1528 { .driver_data = MT_CLS_NSMU,
1529 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1530 USB_DEVICE_ID_XIROKU_CSR1) },
1531 { .driver_data = MT_CLS_NSMU,
1532 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1533 USB_DEVICE_ID_XIROKU_SPX2) },
1534 { .driver_data = MT_CLS_NSMU,
1535 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1536 USB_DEVICE_ID_XIROKU_MPX2) },
1537 { .driver_data = MT_CLS_NSMU,
1538 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1539 USB_DEVICE_ID_XIROKU_CSR2) },
1540
1541 /* Generic MT device */
1542 { HID_DEVICE(HID_BUS_ANY, HID_GROUP_MULTITOUCH, HID_ANY_ID, HID_ANY_ID) },
1543
1544 /* Generic Win 8 certified MT device */
1545 { .driver_data = MT_CLS_WIN_8,
1546 HID_DEVICE(HID_BUS_ANY, HID_GROUP_MULTITOUCH_WIN_8,
1547 HID_ANY_ID, HID_ANY_ID) },
1548 { }
1549 };
1550 MODULE_DEVICE_TABLE(hid, mt_devices);
1551
1552 static const struct hid_usage_id mt_grabbed_usages[] = {
1553 { HID_ANY_ID, HID_ANY_ID, HID_ANY_ID },
1554 { HID_ANY_ID - 1, HID_ANY_ID - 1, HID_ANY_ID - 1}
1555 };
1556
1557 static struct hid_driver mt_driver = {
1558 .name = "hid-multitouch",
1559 .id_table = mt_devices,
1560 .probe = mt_probe,
1561 .remove = mt_remove,
1562 .input_mapping = mt_input_mapping,
1563 .input_mapped = mt_input_mapped,
1564 .input_configured = mt_input_configured,
1565 .feature_mapping = mt_feature_mapping,
1566 .usage_table = mt_grabbed_usages,
1567 .event = mt_event,
1568 .report = mt_report,
1569 #ifdef CONFIG_PM
1570 .reset_resume = mt_reset_resume,
1571 .resume = mt_resume,
1572 #endif
1573 };
1574 module_hid_driver(mt_driver);
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