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r8152: fix tx packets accounting
[linux/fpc-iii.git] / drivers / hid / hid-multitouch.c
blobfba655d639af11a0ce9640382274c2afbd0e2eee
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
150 /* vendor specific classes */
151 #define MT_CLS_3M 0x0101
152 /* reserved 0x0102 */
153 #define MT_CLS_EGALAX 0x0103
154 #define MT_CLS_EGALAX_SERIAL 0x0104
155 #define MT_CLS_TOPSEED 0x0105
156 #define MT_CLS_PANASONIC 0x0106
157 #define MT_CLS_FLATFROG 0x0107
158 #define MT_CLS_GENERALTOUCH_TWOFINGERS 0x0108
159 #define MT_CLS_GENERALTOUCH_PWT_TENFINGERS 0x0109
160 #define MT_CLS_VTL 0x0110
161
162 #define MT_DEFAULT_MAXCONTACT 10
163 #define MT_MAX_MAXCONTACT 250
164
165 #define MT_USB_DEVICE(v, p) HID_DEVICE(BUS_USB, HID_GROUP_MULTITOUCH, v, p)
166 #define MT_BT_DEVICE(v, p) HID_DEVICE(BUS_BLUETOOTH, HID_GROUP_MULTITOUCH, v, p)
167
168 /*
169 * these device-dependent functions determine what slot corresponds
170 * to a valid contact that was just read.
171 */
172
173 static int cypress_compute_slot(struct mt_device *td)
174 {
175 if (td->curdata.contactid != 0 || td->num_received == 0)
176 return td->curdata.contactid;
177 else
178 return -1;
179 }
180
181 static struct mt_class mt_classes[] = {
182 { .name = MT_CLS_DEFAULT,
183 .quirks = MT_QUIRK_ALWAYS_VALID |
184 MT_QUIRK_CONTACT_CNT_ACCURATE },
185 { .name = MT_CLS_NSMU,
186 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP },
187 { .name = MT_CLS_SERIAL,
188 .quirks = MT_QUIRK_ALWAYS_VALID},
189 { .name = MT_CLS_CONFIDENCE,
190 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE },
191 { .name = MT_CLS_CONFIDENCE_CONTACT_ID,
192 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE |
193 MT_QUIRK_SLOT_IS_CONTACTID },
194 { .name = MT_CLS_CONFIDENCE_MINUS_ONE,
195 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE |
196 MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE },
197 { .name = MT_CLS_DUAL_INRANGE_CONTACTID,
198 .quirks = MT_QUIRK_VALID_IS_INRANGE |
199 MT_QUIRK_SLOT_IS_CONTACTID,
200 .maxcontacts = 2 },
201 { .name = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
202 .quirks = MT_QUIRK_VALID_IS_INRANGE |
203 MT_QUIRK_SLOT_IS_CONTACTNUMBER,
204 .maxcontacts = 2 },
205 { .name = MT_CLS_INRANGE_CONTACTNUMBER,
206 .quirks = MT_QUIRK_VALID_IS_INRANGE |
207 MT_QUIRK_SLOT_IS_CONTACTNUMBER },
208 { .name = MT_CLS_WIN_8,
209 .quirks = MT_QUIRK_ALWAYS_VALID |
210 MT_QUIRK_IGNORE_DUPLICATES |
211 MT_QUIRK_HOVERING |
212 MT_QUIRK_CONTACT_CNT_ACCURATE },
213 { .name = MT_CLS_EXPORT_ALL_INPUTS,
214 .quirks = MT_QUIRK_ALWAYS_VALID |
215 MT_QUIRK_CONTACT_CNT_ACCURATE,
216 .export_all_inputs = true },
217
218 /*
219 * vendor specific classes
220 */
221 { .name = MT_CLS_3M,
222 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE |
223 MT_QUIRK_SLOT_IS_CONTACTID,
224 .sn_move = 2048,
225 .sn_width = 128,
226 .sn_height = 128,
227 .maxcontacts = 60,
228 },
229 { .name = MT_CLS_EGALAX,
230 .quirks = MT_QUIRK_SLOT_IS_CONTACTID |
231 MT_QUIRK_VALID_IS_INRANGE,
232 .sn_move = 4096,
233 .sn_pressure = 32,
234 },
235 { .name = MT_CLS_EGALAX_SERIAL,
236 .quirks = MT_QUIRK_SLOT_IS_CONTACTID |
237 MT_QUIRK_ALWAYS_VALID,
238 .sn_move = 4096,
239 .sn_pressure = 32,
240 },
241 { .name = MT_CLS_TOPSEED,
242 .quirks = MT_QUIRK_ALWAYS_VALID,
243 .is_indirect = true,
244 .maxcontacts = 2,
245 },
246 { .name = MT_CLS_PANASONIC,
247 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP,
248 .maxcontacts = 4 },
249 { .name = MT_CLS_GENERALTOUCH_TWOFINGERS,
250 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP |
251 MT_QUIRK_VALID_IS_INRANGE |
252 MT_QUIRK_SLOT_IS_CONTACTID,
253 .maxcontacts = 2
254 },
255 { .name = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
256 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP |
257 MT_QUIRK_SLOT_IS_CONTACTID
258 },
259
260 { .name = MT_CLS_FLATFROG,
261 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP |
262 MT_QUIRK_NO_AREA,
263 .sn_move = 2048,
264 .maxcontacts = 40,
265 },
266 { .name = MT_CLS_VTL,
267 .quirks = MT_QUIRK_ALWAYS_VALID |
268 MT_QUIRK_CONTACT_CNT_ACCURATE |
269 MT_QUIRK_FORCE_GET_FEATURE,
270 },
271 { }
272 };
273
274 static ssize_t mt_show_quirks(struct device *dev,
275 struct device_attribute *attr,
276 char *buf)
277 {
278 struct hid_device *hdev = to_hid_device(dev);
279 struct mt_device *td = hid_get_drvdata(hdev);
280
281 return sprintf(buf, "%u\n", td->mtclass.quirks);
282 }
283
284 static ssize_t mt_set_quirks(struct device *dev,
285 struct device_attribute *attr,
286 const char *buf, size_t count)
287 {
288 struct hid_device *hdev = to_hid_device(dev);
289 struct mt_device *td = hid_get_drvdata(hdev);
290
291 unsigned long val;
292
293 if (kstrtoul(buf, 0, &val))
294 return -EINVAL;
295
296 td->mtclass.quirks = val;
297
298 if (td->cc_index < 0)
299 td->mtclass.quirks &= ~MT_QUIRK_CONTACT_CNT_ACCURATE;
300
301 return count;
302 }
303
304 static DEVICE_ATTR(quirks, S_IWUSR | S_IRUGO, mt_show_quirks, mt_set_quirks);
305
306 static struct attribute *sysfs_attrs[] = {
307 &dev_attr_quirks.attr,
308 NULL
309 };
310
311 static struct attribute_group mt_attribute_group = {
312 .attrs = sysfs_attrs
313 };
314
315 static void mt_get_feature(struct hid_device *hdev, struct hid_report *report)
316 {
317 struct mt_device *td = hid_get_drvdata(hdev);
318 int ret;
319 u32 size = hid_report_len(report);
320 u8 *buf;
321
322 /*
323 * Do not fetch the feature report if the device has been explicitly
324 * marked as non-capable.
325 */
326 if (td->initial_quirks & HID_QUIRK_NO_INIT_REPORTS)
327 return;
328
329 buf = hid_alloc_report_buf(report, GFP_KERNEL);
330 if (!buf)
331 return;
332
333 ret = hid_hw_raw_request(hdev, report->id, buf, size,
334 HID_FEATURE_REPORT, HID_REQ_GET_REPORT);
335 if (ret < 0) {
336 dev_warn(&hdev->dev, "failed to fetch feature %d\n",
337 report->id);
338 } else {
339 ret = hid_report_raw_event(hdev, HID_FEATURE_REPORT, buf,
340 size, 0);
341 if (ret)
342 dev_warn(&hdev->dev, "failed to report feature\n");
343 }
344
345 kfree(buf);
346 }
347
348 static void mt_feature_mapping(struct hid_device *hdev,
349 struct hid_field *field, struct hid_usage *usage)
350 {
351 struct mt_device *td = hid_get_drvdata(hdev);
352
353 switch (usage->hid) {
354 case HID_DG_INPUTMODE:
355 /* Ignore if value index is out of bounds. */
356 if (usage->usage_index >= field->report_count) {
357 dev_err(&hdev->dev, "HID_DG_INPUTMODE out of range\n");
358 break;
359 }
360
361 if (td->inputmode < 0) {
362 td->inputmode = field->report->id;
363 td->inputmode_index = usage->usage_index;
364 } else {
365 /*
366 * Some elan panels wrongly declare 2 input mode
367 * features, and silently ignore when we set the
368 * value in the second field. Skip the second feature
369 * and hope for the best.
370 */
371 dev_info(&hdev->dev,
372 "Ignoring the extra HID_DG_INPUTMODE\n");
373 }
374
375 break;
376 case HID_DG_CONTACTMAX:
377 mt_get_feature(hdev, field->report);
378
379 td->maxcontact_report_id = field->report->id;
380 td->maxcontacts = field->value[0];
381 if (!td->maxcontacts &&
382 field->logical_maximum <= MT_MAX_MAXCONTACT)
383 td->maxcontacts = field->logical_maximum;
384 if (td->mtclass.maxcontacts)
385 /* check if the maxcontacts is given by the class */
386 td->maxcontacts = td->mtclass.maxcontacts;
387
388 break;
389 case HID_DG_BUTTONTYPE:
390 if (usage->usage_index >= field->report_count) {
391 dev_err(&hdev->dev, "HID_DG_BUTTONTYPE out of range\n");
392 break;
393 }
394
395 mt_get_feature(hdev, field->report);
396 if (field->value[usage->usage_index] == MT_BUTTONTYPE_CLICKPAD)
397 td->is_buttonpad = true;
398
399 break;
400 case 0xff0000c5:
401 /* Retrieve the Win8 blob once to enable some devices */
402 if (usage->usage_index == 0)
403 mt_get_feature(hdev, field->report);
404 break;
405 }
406 }
407
408 static void set_abs(struct input_dev *input, unsigned int code,
409 struct hid_field *field, int snratio)
410 {
411 int fmin = field->logical_minimum;
412 int fmax = field->logical_maximum;
413 int fuzz = snratio ? (fmax - fmin) / snratio : 0;
414 input_set_abs_params(input, code, fmin, fmax, fuzz, 0);
415 input_abs_set_res(input, code, hidinput_calc_abs_res(field, code));
416 }
417
418 static void mt_store_field(struct hid_usage *usage, struct mt_device *td,
419 struct hid_input *hi)
420 {
421 struct mt_fields *f = td->fields;
422
423 if (f->length >= HID_MAX_FIELDS)
424 return;
425
426 f->usages[f->length++] = usage->hid;
427 }
428
429 static int mt_touch_input_mapping(struct hid_device *hdev, struct hid_input *hi,
430 struct hid_field *field, struct hid_usage *usage,
431 unsigned long **bit, int *max)
432 {
433 struct mt_device *td = hid_get_drvdata(hdev);
434 struct mt_class *cls = &td->mtclass;
435 int code;
436 struct hid_usage *prev_usage = NULL;
437
438 if (field->application == HID_DG_TOUCHSCREEN)
439 td->mt_flags |= INPUT_MT_DIRECT;
440
441 /*
442 * Model touchscreens providing buttons as touchpads.
443 */
444 if (field->application == HID_DG_TOUCHPAD ||
445 (usage->hid & HID_USAGE_PAGE) == HID_UP_BUTTON) {
446 td->mt_flags |= INPUT_MT_POINTER;
447 td->inputmode_value = MT_INPUTMODE_TOUCHPAD;
448 }
449
450 /* count the buttons on touchpads */
451 if ((usage->hid & HID_USAGE_PAGE) == HID_UP_BUTTON)
452 td->buttons_count++;
453
454 if (usage->usage_index)
455 prev_usage = &field->usage[usage->usage_index - 1];
456
457 switch (usage->hid & HID_USAGE_PAGE) {
458
459 case HID_UP_GENDESK:
460 switch (usage->hid) {
461 case HID_GD_X:
462 if (prev_usage && (prev_usage->hid == usage->hid)) {
463 hid_map_usage(hi, usage, bit, max,
464 EV_ABS, ABS_MT_TOOL_X);
465 set_abs(hi->input, ABS_MT_TOOL_X, field,
466 cls->sn_move);
467 } else {
468 hid_map_usage(hi, usage, bit, max,
469 EV_ABS, ABS_MT_POSITION_X);
470 set_abs(hi->input, ABS_MT_POSITION_X, field,
471 cls->sn_move);
472 }
473
474 mt_store_field(usage, td, hi);
475 return 1;
476 case HID_GD_Y:
477 if (prev_usage && (prev_usage->hid == usage->hid)) {
478 hid_map_usage(hi, usage, bit, max,
479 EV_ABS, ABS_MT_TOOL_Y);
480 set_abs(hi->input, ABS_MT_TOOL_Y, field,
481 cls->sn_move);
482 } else {
483 hid_map_usage(hi, usage, bit, max,
484 EV_ABS, ABS_MT_POSITION_Y);
485 set_abs(hi->input, ABS_MT_POSITION_Y, field,
486 cls->sn_move);
487 }
488
489 mt_store_field(usage, td, hi);
490 return 1;
491 }
492 return 0;
493
494 case HID_UP_DIGITIZER:
495 switch (usage->hid) {
496 case HID_DG_INRANGE:
497 if (cls->quirks & MT_QUIRK_HOVERING) {
498 hid_map_usage(hi, usage, bit, max,
499 EV_ABS, ABS_MT_DISTANCE);
500 input_set_abs_params(hi->input,
501 ABS_MT_DISTANCE, 0, 1, 0, 0);
502 }
503 mt_store_field(usage, td, hi);
504 return 1;
505 case HID_DG_CONFIDENCE:
506 if (cls->name == MT_CLS_WIN_8 &&
507 field->application == HID_DG_TOUCHPAD)
508 cls->quirks |= MT_QUIRK_CONFIDENCE;
509 mt_store_field(usage, td, hi);
510 return 1;
511 case HID_DG_TIPSWITCH:
512 hid_map_usage(hi, usage, bit, max, EV_KEY, BTN_TOUCH);
513 input_set_capability(hi->input, EV_KEY, BTN_TOUCH);
514 mt_store_field(usage, td, hi);
515 return 1;
516 case HID_DG_CONTACTID:
517 mt_store_field(usage, td, hi);
518 td->touches_by_report++;
519 td->mt_report_id = field->report->id;
520 return 1;
521 case HID_DG_WIDTH:
522 hid_map_usage(hi, usage, bit, max,
523 EV_ABS, ABS_MT_TOUCH_MAJOR);
524 if (!(cls->quirks & MT_QUIRK_NO_AREA))
525 set_abs(hi->input, ABS_MT_TOUCH_MAJOR, field,
526 cls->sn_width);
527 mt_store_field(usage, td, hi);
528 return 1;
529 case HID_DG_HEIGHT:
530 hid_map_usage(hi, usage, bit, max,
531 EV_ABS, ABS_MT_TOUCH_MINOR);
532 if (!(cls->quirks & MT_QUIRK_NO_AREA)) {
533 set_abs(hi->input, ABS_MT_TOUCH_MINOR, field,
534 cls->sn_height);
535 input_set_abs_params(hi->input,
536 ABS_MT_ORIENTATION, 0, 1, 0, 0);
537 }
538 mt_store_field(usage, td, hi);
539 return 1;
540 case HID_DG_TIPPRESSURE:
541 hid_map_usage(hi, usage, bit, max,
542 EV_ABS, ABS_MT_PRESSURE);
543 set_abs(hi->input, ABS_MT_PRESSURE, field,
544 cls->sn_pressure);
545 mt_store_field(usage, td, hi);
546 return 1;
547 case HID_DG_CONTACTCOUNT:
548 /* Ignore if indexes are out of bounds. */
549 if (field->index >= field->report->maxfield ||
550 usage->usage_index >= field->report_count)
551 return 1;
552 td->cc_index = field->index;
553 td->cc_value_index = usage->usage_index;
554 return 1;
555 case HID_DG_CONTACTMAX:
556 /* we don't set td->last_slot_field as contactcount and
557 * contact max are global to the report */
558 return -1;
559 case HID_DG_TOUCH:
560 /* Legacy devices use TIPSWITCH and not TOUCH.
561 * Let's just ignore this field. */
562 return -1;
563 }
564 /* let hid-input decide for the others */
565 return 0;
566
567 case HID_UP_BUTTON:
568 code = BTN_MOUSE + ((usage->hid - 1) & HID_USAGE);
569 hid_map_usage(hi, usage, bit, max, EV_KEY, code);
570 input_set_capability(hi->input, EV_KEY, code);
571 return 1;
572
573 case 0xff000000:
574 /* we do not want to map these: no input-oriented meaning */
575 return -1;
576 }
577
578 return 0;
579 }
580
581 static int mt_touch_input_mapped(struct hid_device *hdev, struct hid_input *hi,
582 struct hid_field *field, struct hid_usage *usage,
583 unsigned long **bit, int *max)
584 {
585 if (usage->type == EV_KEY || usage->type == EV_ABS)
586 set_bit(usage->type, hi->input->evbit);
587
588 return -1;
589 }
590
591 static int mt_compute_slot(struct mt_device *td, struct input_dev *input)
592 {
593 __s32 quirks = td->mtclass.quirks;
594
595 if (quirks & MT_QUIRK_SLOT_IS_CONTACTID)
596 return td->curdata.contactid;
597
598 if (quirks & MT_QUIRK_CYPRESS)
599 return cypress_compute_slot(td);
600
601 if (quirks & MT_QUIRK_SLOT_IS_CONTACTNUMBER)
602 return td->num_received;
603
604 if (quirks & MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE)
605 return td->curdata.contactid - 1;
606
607 return input_mt_get_slot_by_key(input, td->curdata.contactid);
608 }
609
610 /*
611 * this function is called when a whole contact has been processed,
612 * so that it can assign it to a slot and store the data there
613 */
614 static void mt_complete_slot(struct mt_device *td, struct input_dev *input)
615 {
616 if ((td->mtclass.quirks & MT_QUIRK_CONTACT_CNT_ACCURATE) &&
617 td->num_received >= td->num_expected)
618 return;
619
620 if (td->curvalid || (td->mtclass.quirks & MT_QUIRK_ALWAYS_VALID)) {
621 int active;
622 int slotnum = mt_compute_slot(td, input);
623 struct mt_slot *s = &td->curdata;
624 struct input_mt *mt = input->mt;
625
626 if (slotnum < 0 || slotnum >= td->maxcontacts)
627 return;
628
629 if ((td->mtclass.quirks & MT_QUIRK_IGNORE_DUPLICATES) && mt) {
630 struct input_mt_slot *slot = &mt->slots[slotnum];
631 if (input_mt_is_active(slot) &&
632 input_mt_is_used(mt, slot))
633 return;
634 }
635
636 if (!(td->mtclass.quirks & MT_QUIRK_CONFIDENCE))
637 s->confidence_state = 1;
638 active = (s->touch_state || s->inrange_state) &&
639 s->confidence_state;
640
641 input_mt_slot(input, slotnum);
642 input_mt_report_slot_state(input, MT_TOOL_FINGER, active);
643 if (active) {
644 /* this finger is in proximity of the sensor */
645 int wide = (s->w > s->h);
646 /* divided by two to match visual scale of touch */
647 int major = max(s->w, s->h) >> 1;
648 int minor = min(s->w, s->h) >> 1;
649
650 input_event(input, EV_ABS, ABS_MT_POSITION_X, s->x);
651 input_event(input, EV_ABS, ABS_MT_POSITION_Y, s->y);
652 input_event(input, EV_ABS, ABS_MT_TOOL_X, s->cx);
653 input_event(input, EV_ABS, ABS_MT_TOOL_Y, s->cy);
654 input_event(input, EV_ABS, ABS_MT_DISTANCE,
655 !s->touch_state);
656 input_event(input, EV_ABS, ABS_MT_ORIENTATION, wide);
657 input_event(input, EV_ABS, ABS_MT_PRESSURE, s->p);
658 input_event(input, EV_ABS, ABS_MT_TOUCH_MAJOR, major);
659 input_event(input, EV_ABS, ABS_MT_TOUCH_MINOR, minor);
660 }
661 }
662
663 td->num_received++;
664 }
665
666 /*
667 * this function is called when a whole packet has been received and processed,
668 * so that it can decide what to send to the input layer.
669 */
670 static void mt_sync_frame(struct mt_device *td, struct input_dev *input)
671 {
672 input_mt_sync_frame(input);
673 input_sync(input);
674 td->num_received = 0;
675 }
676
677 static int mt_touch_event(struct hid_device *hid, struct hid_field *field,
678 struct hid_usage *usage, __s32 value)
679 {
680 /* we will handle the hidinput part later, now remains hiddev */
681 if (hid->claimed & HID_CLAIMED_HIDDEV && hid->hiddev_hid_event)
682 hid->hiddev_hid_event(hid, field, usage, value);
683
684 return 1;
685 }
686
687 static void mt_process_mt_event(struct hid_device *hid, struct hid_field *field,
688 struct hid_usage *usage, __s32 value)
689 {
690 struct mt_device *td = hid_get_drvdata(hid);
691 __s32 quirks = td->mtclass.quirks;
692 struct input_dev *input = field->hidinput->input;
693
694 if (hid->claimed & HID_CLAIMED_INPUT) {
695 switch (usage->hid) {
696 case HID_DG_INRANGE:
697 if (quirks & MT_QUIRK_VALID_IS_INRANGE)
698 td->curvalid = value;
699 if (quirks & MT_QUIRK_HOVERING)
700 td->curdata.inrange_state = value;
701 break;
702 case HID_DG_TIPSWITCH:
703 if (quirks & MT_QUIRK_NOT_SEEN_MEANS_UP)
704 td->curvalid = value;
705 td->curdata.touch_state = value;
706 break;
707 case HID_DG_CONFIDENCE:
708 if (quirks & MT_QUIRK_CONFIDENCE)
709 td->curdata.confidence_state = value;
710 if (quirks & MT_QUIRK_VALID_IS_CONFIDENCE)
711 td->curvalid = value;
712 break;
713 case HID_DG_CONTACTID:
714 td->curdata.contactid = value;
715 break;
716 case HID_DG_TIPPRESSURE:
717 td->curdata.p = value;
718 break;
719 case HID_GD_X:
720 if (usage->code == ABS_MT_TOOL_X)
721 td->curdata.cx = value;
722 else
723 td->curdata.x = value;
724 break;
725 case HID_GD_Y:
726 if (usage->code == ABS_MT_TOOL_Y)
727 td->curdata.cy = value;
728 else
729 td->curdata.y = value;
730 break;
731 case HID_DG_WIDTH:
732 td->curdata.w = value;
733 break;
734 case HID_DG_HEIGHT:
735 td->curdata.h = value;
736 break;
737 case HID_DG_CONTACTCOUNT:
738 break;
739 case HID_DG_TOUCH:
740 /* do nothing */
741 break;
742
743 default:
744 if (usage->type)
745 input_event(input, usage->type, usage->code,
746 value);
747 return;
748 }
749
750 if (usage->usage_index + 1 == field->report_count) {
751 /* we only take into account the last report. */
752 if (usage->hid == td->last_slot_field)
753 mt_complete_slot(td, field->hidinput->input);
754 }
755
756 }
757 }
758
759 static void mt_touch_report(struct hid_device *hid, struct hid_report *report)
760 {
761 struct mt_device *td = hid_get_drvdata(hid);
762 struct hid_field *field;
763 unsigned count;
764 int r, n;
765
766 /*
767 * Includes multi-packet support where subsequent
768 * packets are sent with zero contactcount.
769 */
770 if (td->cc_index >= 0) {
771 struct hid_field *field = report->field[td->cc_index];
772 int value = field->value[td->cc_value_index];
773 if (value)
774 td->num_expected = value;
775 }
776
777 for (r = 0; r < report->maxfield; r++) {
778 field = report->field[r];
779 count = field->report_count;
780
781 if (!(HID_MAIN_ITEM_VARIABLE & field->flags))
782 continue;
783
784 for (n = 0; n < count; n++)
785 mt_process_mt_event(hid, field, &field->usage[n],
786 field->value[n]);
787 }
788
789 if (td->num_received >= td->num_expected)
790 mt_sync_frame(td, report->field[0]->hidinput->input);
791 }
792
793 static int mt_touch_input_configured(struct hid_device *hdev,
794 struct hid_input *hi)
795 {
796 struct mt_device *td = hid_get_drvdata(hdev);
797 struct mt_class *cls = &td->mtclass;
798 struct input_dev *input = hi->input;
799 int ret;
800
801 if (!td->maxcontacts)
802 td->maxcontacts = MT_DEFAULT_MAXCONTACT;
803
804 mt_post_parse(td);
805 if (td->serial_maybe)
806 mt_post_parse_default_settings(td);
807
808 if (cls->is_indirect)
809 td->mt_flags |= INPUT_MT_POINTER;
810
811 if (cls->quirks & MT_QUIRK_NOT_SEEN_MEANS_UP)
812 td->mt_flags |= INPUT_MT_DROP_UNUSED;
813
814 /* check for clickpads */
815 if ((td->mt_flags & INPUT_MT_POINTER) && (td->buttons_count == 1))
816 td->is_buttonpad = true;
817
818 if (td->is_buttonpad)
819 __set_bit(INPUT_PROP_BUTTONPAD, input->propbit);
820
821 ret = input_mt_init_slots(input, td->maxcontacts, td->mt_flags);
822 if (ret)
823 return ret;
824
825 td->mt_flags = 0;
826 return 0;
827 }
828
829 static int mt_input_mapping(struct hid_device *hdev, struct hid_input *hi,
830 struct hid_field *field, struct hid_usage *usage,
831 unsigned long **bit, int *max)
832 {
833 struct mt_device *td = hid_get_drvdata(hdev);
834
835 /*
836 * If mtclass.export_all_inputs is not set, only map fields from
837 * TouchScreen or TouchPad collections. We need to ignore fields
838 * that belong to other collections such as Mouse that might have
839 * the same GenericDesktop usages.
840 */
841 if (!td->mtclass.export_all_inputs &&
842 field->application != HID_DG_TOUCHSCREEN &&
843 field->application != HID_DG_PEN &&
844 field->application != HID_DG_TOUCHPAD &&
845 field->application != HID_GD_KEYBOARD &&
846 field->application != HID_CP_CONSUMER_CONTROL)
847 return -1;
848
849 /*
850 * some egalax touchscreens have "application == HID_DG_TOUCHSCREEN"
851 * for the stylus.
852 * The check for mt_report_id ensures we don't process
853 * HID_DG_CONTACTCOUNT from the pen report as it is outside the physical
854 * collection, but within the report ID.
855 */
856 if (field->physical == HID_DG_STYLUS)
857 return 0;
858 else if ((field->physical == 0) &&
859 (field->report->id != td->mt_report_id) &&
860 (td->mt_report_id != -1))
861 return 0;
862
863 if (field->application == HID_DG_TOUCHSCREEN ||
864 field->application == HID_DG_TOUCHPAD)
865 return mt_touch_input_mapping(hdev, hi, field, usage, bit, max);
866
867 /* let hid-core decide for the others */
868 return 0;
869 }
870
871 static int mt_input_mapped(struct hid_device *hdev, struct hid_input *hi,
872 struct hid_field *field, struct hid_usage *usage,
873 unsigned long **bit, int *max)
874 {
875 /*
876 * some egalax touchscreens have "application == HID_DG_TOUCHSCREEN"
877 * for the stylus.
878 */
879 if (field->physical == HID_DG_STYLUS)
880 return 0;
881
882 if (field->application == HID_DG_TOUCHSCREEN ||
883 field->application == HID_DG_TOUCHPAD)
884 return mt_touch_input_mapped(hdev, hi, field, usage, bit, max);
885
886 /* let hid-core decide for the others */
887 return 0;
888 }
889
890 static int mt_event(struct hid_device *hid, struct hid_field *field,
891 struct hid_usage *usage, __s32 value)
892 {
893 struct mt_device *td = hid_get_drvdata(hid);
894
895 if (field->report->id == td->mt_report_id)
896 return mt_touch_event(hid, field, usage, value);
897
898 return 0;
899 }
900
901 static void mt_report(struct hid_device *hid, struct hid_report *report)
902 {
903 struct mt_device *td = hid_get_drvdata(hid);
904 struct hid_field *field = report->field[0];
905
906 if (!(hid->claimed & HID_CLAIMED_INPUT))
907 return;
908
909 if (report->id == td->mt_report_id)
910 return mt_touch_report(hid, report);
911
912 if (field && field->hidinput && field->hidinput->input)
913 input_sync(field->hidinput->input);
914 }
915
916 static void mt_set_input_mode(struct hid_device *hdev)
917 {
918 struct mt_device *td = hid_get_drvdata(hdev);
919 struct hid_report *r;
920 struct hid_report_enum *re;
921 struct mt_class *cls = &td->mtclass;
922 char *buf;
923 u32 report_len;
924
925 if (td->inputmode < 0)
926 return;
927
928 re = &(hdev->report_enum[HID_FEATURE_REPORT]);
929 r = re->report_id_hash[td->inputmode];
930 if (r) {
931 if (cls->quirks & MT_QUIRK_FORCE_GET_FEATURE) {
932 report_len = hid_report_len(r);
933 buf = hid_alloc_report_buf(r, GFP_KERNEL);
934 if (!buf) {
935 hid_err(hdev, "failed to allocate buffer for report\n");
936 return;
937 }
938 hid_hw_raw_request(hdev, r->id, buf, report_len,
939 HID_FEATURE_REPORT,
940 HID_REQ_GET_REPORT);
941 kfree(buf);
942 }
943 r->field[0]->value[td->inputmode_index] = td->inputmode_value;
944 hid_hw_request(hdev, r, HID_REQ_SET_REPORT);
945 }
946 }
947
948 static void mt_set_maxcontacts(struct hid_device *hdev)
949 {
950 struct mt_device *td = hid_get_drvdata(hdev);
951 struct hid_report *r;
952 struct hid_report_enum *re;
953 int fieldmax, max;
954
955 if (td->maxcontact_report_id < 0)
956 return;
957
958 if (!td->mtclass.maxcontacts)
959 return;
960
961 re = &hdev->report_enum[HID_FEATURE_REPORT];
962 r = re->report_id_hash[td->maxcontact_report_id];
963 if (r) {
964 max = td->mtclass.maxcontacts;
965 fieldmax = r->field[0]->logical_maximum;
966 max = min(fieldmax, max);
967 if (r->field[0]->value[0] != max) {
968 r->field[0]->value[0] = max;
969 hid_hw_request(hdev, r, HID_REQ_SET_REPORT);
970 }
971 }
972 }
973
974 static void mt_post_parse_default_settings(struct mt_device *td)
975 {
976 __s32 quirks = td->mtclass.quirks;
977
978 /* unknown serial device needs special quirks */
979 if (td->touches_by_report == 1) {
980 quirks |= MT_QUIRK_ALWAYS_VALID;
981 quirks &= ~MT_QUIRK_NOT_SEEN_MEANS_UP;
982 quirks &= ~MT_QUIRK_VALID_IS_INRANGE;
983 quirks &= ~MT_QUIRK_VALID_IS_CONFIDENCE;
984 quirks &= ~MT_QUIRK_CONTACT_CNT_ACCURATE;
985 }
986
987 td->mtclass.quirks = quirks;
988 }
989
990 static void mt_post_parse(struct mt_device *td)
991 {
992 struct mt_fields *f = td->fields;
993 struct mt_class *cls = &td->mtclass;
994
995 if (td->touches_by_report > 0) {
996 int field_count_per_touch = f->length / td->touches_by_report;
997 td->last_slot_field = f->usages[field_count_per_touch - 1];
998 }
999
1000 if (td->cc_index < 0)
1001 cls->quirks &= ~MT_QUIRK_CONTACT_CNT_ACCURATE;
1002 }
1003
1004 static int mt_input_configured(struct hid_device *hdev, struct hid_input *hi)
1005 {
1006 struct mt_device *td = hid_get_drvdata(hdev);
1007 char *name;
1008 const char *suffix = NULL;
1009 struct hid_field *field = hi->report->field[0];
1010 int ret;
1011
1012 if (hi->report->id == td->mt_report_id) {
1013 ret = mt_touch_input_configured(hdev, hi);
1014 if (ret)
1015 return ret;
1016 }
1017
1018 /*
1019 * some egalax touchscreens have "application == HID_DG_TOUCHSCREEN"
1020 * for the stylus. Check this first, and then rely on the application
1021 * field.
1022 */
1023 if (hi->report->field[0]->physical == HID_DG_STYLUS) {
1024 suffix = "Pen";
1025 /* force BTN_STYLUS to allow tablet matching in udev */
1026 __set_bit(BTN_STYLUS, hi->input->keybit);
1027 } else {
1028 switch (field->application) {
1029 case HID_GD_KEYBOARD:
1030 suffix = "Keyboard";
1031 break;
1032 case HID_GD_KEYPAD:
1033 suffix = "Keypad";
1034 break;
1035 case HID_GD_MOUSE:
1036 suffix = "Mouse";
1037 break;
1038 case HID_DG_STYLUS:
1039 suffix = "Pen";
1040 /* force BTN_STYLUS to allow tablet matching in udev */
1041 __set_bit(BTN_STYLUS, hi->input->keybit);
1042 break;
1043 case HID_DG_TOUCHSCREEN:
1044 /* we do not set suffix = "Touchscreen" */
1045 break;
1046 case HID_DG_TOUCHPAD:
1047 suffix = "Touchpad";
1048 break;
1049 case HID_GD_SYSTEM_CONTROL:
1050 suffix = "System Control";
1051 break;
1052 case HID_CP_CONSUMER_CONTROL:
1053 suffix = "Consumer Control";
1054 break;
1055 default:
1056 suffix = "UNKNOWN";
1057 break;
1058 }
1059 }
1060
1061 if (suffix) {
1062 name = devm_kzalloc(&hi->input->dev,
1063 strlen(hdev->name) + strlen(suffix) + 2,
1064 GFP_KERNEL);
1065 if (name) {
1066 sprintf(name, "%s %s", hdev->name, suffix);
1067 hi->input->name = name;
1068 }
1069 }
1070
1071 return 0;
1072 }
1073
1074 static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id)
1075 {
1076 int ret, i;
1077 struct mt_device *td;
1078 struct mt_class *mtclass = mt_classes; /* MT_CLS_DEFAULT */
1079
1080 for (i = 0; mt_classes[i].name ; i++) {
1081 if (id->driver_data == mt_classes[i].name) {
1082 mtclass = &(mt_classes[i]);
1083 break;
1084 }
1085 }
1086
1087 td = devm_kzalloc(&hdev->dev, sizeof(struct mt_device), GFP_KERNEL);
1088 if (!td) {
1089 dev_err(&hdev->dev, "cannot allocate multitouch data\n");
1090 return -ENOMEM;
1091 }
1092 td->mtclass = *mtclass;
1093 td->inputmode = -1;
1094 td->maxcontact_report_id = -1;
1095 td->inputmode_value = MT_INPUTMODE_TOUCHSCREEN;
1096 td->cc_index = -1;
1097 td->mt_report_id = -1;
1098 hid_set_drvdata(hdev, td);
1099
1100 td->fields = devm_kzalloc(&hdev->dev, sizeof(struct mt_fields),
1101 GFP_KERNEL);
1102 if (!td->fields) {
1103 dev_err(&hdev->dev, "cannot allocate multitouch fields data\n");
1104 return -ENOMEM;
1105 }
1106
1107 if (id->vendor == HID_ANY_ID && id->product == HID_ANY_ID)
1108 td->serial_maybe = true;
1109
1110 /*
1111 * Store the initial quirk state
1112 */
1113 td->initial_quirks = hdev->quirks;
1114
1115 /* This allows the driver to correctly support devices
1116 * that emit events over several HID messages.
1117 */
1118 hdev->quirks |= HID_QUIRK_NO_INPUT_SYNC;
1119
1120 /*
1121 * This allows the driver to handle different input sensors
1122 * that emits events through different reports on the same HID
1123 * device.
1124 */
1125 hdev->quirks |= HID_QUIRK_MULTI_INPUT;
1126 hdev->quirks |= HID_QUIRK_NO_EMPTY_INPUT;
1127
1128 /*
1129 * Some multitouch screens do not like to be polled for input
1130 * reports. Fortunately, the Win8 spec says that all touches
1131 * should be sent during each report, making the initialization
1132 * of input reports unnecessary. For Win7 devices, well, let's hope
1133 * they will still be happy (this is only be a problem if a touch
1134 * was already there while probing the device).
1135 *
1136 * In addition some touchpads do not behave well if we read
1137 * all feature reports from them. Instead we prevent
1138 * initial report fetching and then selectively fetch each
1139 * report we are interested in.
1140 */
1141 hdev->quirks |= HID_QUIRK_NO_INIT_REPORTS;
1142
1143 ret = hid_parse(hdev);
1144 if (ret != 0)
1145 return ret;
1146
1147 ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
1148 if (ret)
1149 return ret;
1150
1151 ret = sysfs_create_group(&hdev->dev.kobj, &mt_attribute_group);
1152 if (ret)
1153 dev_warn(&hdev->dev, "Cannot allocate sysfs group for %s\n",
1154 hdev->name);
1155
1156 mt_set_maxcontacts(hdev);
1157 mt_set_input_mode(hdev);
1158
1159 /* release .fields memory as it is not used anymore */
1160 devm_kfree(&hdev->dev, td->fields);
1161 td->fields = NULL;
1162
1163 return 0;
1164 }
1165
1166 #ifdef CONFIG_PM
1167 static void mt_release_contacts(struct hid_device *hid)
1168 {
1169 struct hid_input *hidinput;
1170
1171 list_for_each_entry(hidinput, &hid->inputs, list) {
1172 struct input_dev *input_dev = hidinput->input;
1173 struct input_mt *mt = input_dev->mt;
1174 int i;
1175
1176 if (mt) {
1177 for (i = 0; i < mt->num_slots; i++) {
1178 input_mt_slot(input_dev, i);
1179 input_mt_report_slot_state(input_dev,
1180 MT_TOOL_FINGER,
1181 false);
1182 }
1183 input_mt_sync_frame(input_dev);
1184 input_sync(input_dev);
1185 }
1186 }
1187 }
1188
1189 static int mt_reset_resume(struct hid_device *hdev)
1190 {
1191 mt_release_contacts(hdev);
1192 mt_set_maxcontacts(hdev);
1193 mt_set_input_mode(hdev);
1194 return 0;
1195 }
1196
1197 static int mt_resume(struct hid_device *hdev)
1198 {
1199 /* Some Elan legacy devices require SET_IDLE to be set on resume.
1200 * It should be safe to send it to other devices too.
1201 * Tested on 3M, Stantum, Cypress, Zytronic, eGalax, and Elan panels. */
1202
1203 hid_hw_idle(hdev, 0, 0, HID_REQ_SET_IDLE);
1204
1205 return 0;
1206 }
1207 #endif
1208
1209 static void mt_remove(struct hid_device *hdev)
1210 {
1211 struct mt_device *td = hid_get_drvdata(hdev);
1212
1213 sysfs_remove_group(&hdev->dev.kobj, &mt_attribute_group);
1214 hid_hw_stop(hdev);
1215 hdev->quirks = td->initial_quirks;
1216 }
1217
1218 /*
1219 * This list contains only:
1220 * - VID/PID of products not working with the default multitouch handling
1221 * - 2 generic rules.
1222 * So there is no point in adding here any device with MT_CLS_DEFAULT.
1223 */
1224 static const struct hid_device_id mt_devices[] = {
1225
1226 /* 3M panels */
1227 { .driver_data = MT_CLS_3M,
1228 MT_USB_DEVICE(USB_VENDOR_ID_3M,
1229 USB_DEVICE_ID_3M1968) },
1230 { .driver_data = MT_CLS_3M,
1231 MT_USB_DEVICE(USB_VENDOR_ID_3M,
1232 USB_DEVICE_ID_3M2256) },
1233 { .driver_data = MT_CLS_3M,
1234 MT_USB_DEVICE(USB_VENDOR_ID_3M,
1235 USB_DEVICE_ID_3M3266) },
1236
1237 /* Anton devices */
1238 { .driver_data = MT_CLS_EXPORT_ALL_INPUTS,
1239 MT_USB_DEVICE(USB_VENDOR_ID_ANTON,
1240 USB_DEVICE_ID_ANTON_TOUCH_PAD) },
1241
1242 /* Atmel panels */
1243 { .driver_data = MT_CLS_SERIAL,
1244 MT_USB_DEVICE(USB_VENDOR_ID_ATMEL,
1245 USB_DEVICE_ID_ATMEL_MXT_DIGITIZER) },
1246
1247 /* Baanto multitouch devices */
1248 { .driver_data = MT_CLS_NSMU,
1249 MT_USB_DEVICE(USB_VENDOR_ID_BAANTO,
1250 USB_DEVICE_ID_BAANTO_MT_190W2) },
1251
1252 /* Cando panels */
1253 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
1254 MT_USB_DEVICE(USB_VENDOR_ID_CANDO,
1255 USB_DEVICE_ID_CANDO_MULTI_TOUCH) },
1256 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
1257 MT_USB_DEVICE(USB_VENDOR_ID_CANDO,
1258 USB_DEVICE_ID_CANDO_MULTI_TOUCH_15_6) },
1259
1260 /* Chunghwa Telecom touch panels */
1261 { .driver_data = MT_CLS_NSMU,
1262 MT_USB_DEVICE(USB_VENDOR_ID_CHUNGHWAT,
1263 USB_DEVICE_ID_CHUNGHWAT_MULTITOUCH) },
1264
1265 /* CJTouch panels */
1266 { .driver_data = MT_CLS_NSMU,
1267 MT_USB_DEVICE(USB_VENDOR_ID_CJTOUCH,
1268 USB_DEVICE_ID_CJTOUCH_MULTI_TOUCH_0020) },
1269 { .driver_data = MT_CLS_NSMU,
1270 MT_USB_DEVICE(USB_VENDOR_ID_CJTOUCH,
1271 USB_DEVICE_ID_CJTOUCH_MULTI_TOUCH_0040) },
1272
1273 /* CVTouch panels */
1274 { .driver_data = MT_CLS_NSMU,
1275 MT_USB_DEVICE(USB_VENDOR_ID_CVTOUCH,
1276 USB_DEVICE_ID_CVTOUCH_SCREEN) },
1277
1278 /* eGalax devices (resistive) */
1279 { .driver_data = MT_CLS_EGALAX,
1280 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1281 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_480D) },
1282 { .driver_data = MT_CLS_EGALAX,
1283 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1284 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_480E) },
1285
1286 /* eGalax devices (capacitive) */
1287 { .driver_data = MT_CLS_EGALAX_SERIAL,
1288 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1289 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7207) },
1290 { .driver_data = MT_CLS_EGALAX,
1291 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1292 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_720C) },
1293 { .driver_data = MT_CLS_EGALAX_SERIAL,
1294 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1295 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7224) },
1296 { .driver_data = MT_CLS_EGALAX_SERIAL,
1297 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1298 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_722A) },
1299 { .driver_data = MT_CLS_EGALAX_SERIAL,
1300 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1301 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_725E) },
1302 { .driver_data = MT_CLS_EGALAX_SERIAL,
1303 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1304 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7262) },
1305 { .driver_data = MT_CLS_EGALAX,
1306 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1307 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_726B) },
1308 { .driver_data = MT_CLS_EGALAX,
1309 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1310 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72A1) },
1311 { .driver_data = MT_CLS_EGALAX_SERIAL,
1312 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1313 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72AA) },
1314 { .driver_data = MT_CLS_EGALAX,
1315 HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
1316 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72C4) },
1317 { .driver_data = MT_CLS_EGALAX,
1318 HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
1319 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72D0) },
1320 { .driver_data = MT_CLS_EGALAX,
1321 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1322 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72FA) },
1323 { .driver_data = MT_CLS_EGALAX,
1324 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1325 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7302) },
1326 { .driver_data = MT_CLS_EGALAX_SERIAL,
1327 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1328 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7349) },
1329 { .driver_data = MT_CLS_EGALAX_SERIAL,
1330 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1331 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_73F7) },
1332 { .driver_data = MT_CLS_EGALAX_SERIAL,
1333 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1334 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_A001) },
1335
1336 /* Elitegroup panel */
1337 { .driver_data = MT_CLS_SERIAL,
1338 MT_USB_DEVICE(USB_VENDOR_ID_ELITEGROUP,
1339 USB_DEVICE_ID_ELITEGROUP_05D8) },
1340
1341 /* Flatfrog Panels */
1342 { .driver_data = MT_CLS_FLATFROG,
1343 MT_USB_DEVICE(USB_VENDOR_ID_FLATFROG,
1344 USB_DEVICE_ID_MULTITOUCH_3200) },
1345
1346 /* FocalTech Panels */
1347 { .driver_data = MT_CLS_SERIAL,
1348 MT_USB_DEVICE(USB_VENDOR_ID_CYGNAL,
1349 USB_DEVICE_ID_FOCALTECH_FTXXXX_MULTITOUCH) },
1350
1351 /* GeneralTouch panel */
1352 { .driver_data = MT_CLS_GENERALTOUCH_TWOFINGERS,
1353 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
1354 USB_DEVICE_ID_GENERAL_TOUCH_WIN7_TWOFINGERS) },
1355 { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
1356 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
1357 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PWT_TENFINGERS) },
1358 { .driver_data = MT_CLS_GENERALTOUCH_TWOFINGERS,
1359 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
1360 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_0101) },
1361 { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
1362 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
1363 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_0102) },
1364 { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
1365 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
1366 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_0106) },
1367 { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
1368 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
1369 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_010A) },
1370 { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
1371 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
1372 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_E100) },
1373
1374 /* Gametel game controller */
1375 { .driver_data = MT_CLS_NSMU,
1376 MT_BT_DEVICE(USB_VENDOR_ID_FRUCTEL,
1377 USB_DEVICE_ID_GAMETEL_MT_MODE) },
1378
1379 /* GoodTouch panels */
1380 { .driver_data = MT_CLS_NSMU,
1381 MT_USB_DEVICE(USB_VENDOR_ID_GOODTOUCH,
1382 USB_DEVICE_ID_GOODTOUCH_000f) },
1383
1384 /* Hanvon panels */
1385 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID,
1386 MT_USB_DEVICE(USB_VENDOR_ID_HANVON_ALT,
1387 USB_DEVICE_ID_HANVON_ALT_MULTITOUCH) },
1388
1389 /* Ilitek dual touch panel */
1390 { .driver_data = MT_CLS_NSMU,
1391 MT_USB_DEVICE(USB_VENDOR_ID_ILITEK,
1392 USB_DEVICE_ID_ILITEK_MULTITOUCH) },
1393
1394 /* MosArt panels */
1395 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
1396 MT_USB_DEVICE(USB_VENDOR_ID_ASUS,
1397 USB_DEVICE_ID_ASUS_T91MT)},
1398 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
1399 MT_USB_DEVICE(USB_VENDOR_ID_ASUS,
1400 USB_DEVICE_ID_ASUSTEK_MULTITOUCH_YFO) },
1401 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
1402 MT_USB_DEVICE(USB_VENDOR_ID_TURBOX,
1403 USB_DEVICE_ID_TURBOX_TOUCHSCREEN_MOSART) },
1404
1405 /* Panasonic panels */
1406 { .driver_data = MT_CLS_PANASONIC,
1407 MT_USB_DEVICE(USB_VENDOR_ID_PANASONIC,
1408 USB_DEVICE_ID_PANABOARD_UBT780) },
1409 { .driver_data = MT_CLS_PANASONIC,
1410 MT_USB_DEVICE(USB_VENDOR_ID_PANASONIC,
1411 USB_DEVICE_ID_PANABOARD_UBT880) },
1412
1413 /* Novatek Panel */
1414 { .driver_data = MT_CLS_NSMU,
1415 MT_USB_DEVICE(USB_VENDOR_ID_NOVATEK,
1416 USB_DEVICE_ID_NOVATEK_PCT) },
1417
1418 /* Ntrig Panel */
1419 { .driver_data = MT_CLS_NSMU,
1420 HID_DEVICE(BUS_I2C, HID_GROUP_MULTITOUCH_WIN_8,
1421 USB_VENDOR_ID_NTRIG, 0x1b05) },
1422
1423 /* PixArt optical touch screen */
1424 { .driver_data = MT_CLS_INRANGE_CONTACTNUMBER,
1425 MT_USB_DEVICE(USB_VENDOR_ID_PIXART,
1426 USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN) },
1427 { .driver_data = MT_CLS_INRANGE_CONTACTNUMBER,
1428 MT_USB_DEVICE(USB_VENDOR_ID_PIXART,
1429 USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN1) },
1430 { .driver_data = MT_CLS_INRANGE_CONTACTNUMBER,
1431 MT_USB_DEVICE(USB_VENDOR_ID_PIXART,
1432 USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN2) },
1433
1434 /* PixCir-based panels */
1435 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID,
1436 MT_USB_DEVICE(USB_VENDOR_ID_CANDO,
1437 USB_DEVICE_ID_CANDO_PIXCIR_MULTI_TOUCH) },
1438
1439 /* Quanta-based panels */
1440 { .driver_data = MT_CLS_CONFIDENCE_CONTACT_ID,
1441 MT_USB_DEVICE(USB_VENDOR_ID_QUANTA,
1442 USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3001) },
1443
1444 /* Stantum panels */
1445 { .driver_data = MT_CLS_CONFIDENCE,
1446 MT_USB_DEVICE(USB_VENDOR_ID_STANTUM_STM,
1447 USB_DEVICE_ID_MTP_STM)},
1448
1449 /* TopSeed panels */
1450 { .driver_data = MT_CLS_TOPSEED,
1451 MT_USB_DEVICE(USB_VENDOR_ID_TOPSEED2,
1452 USB_DEVICE_ID_TOPSEED2_PERIPAD_701) },
1453
1454 /* Touch International panels */
1455 { .driver_data = MT_CLS_NSMU,
1456 MT_USB_DEVICE(USB_VENDOR_ID_TOUCH_INTL,
1457 USB_DEVICE_ID_TOUCH_INTL_MULTI_TOUCH) },
1458
1459 /* Unitec panels */
1460 { .driver_data = MT_CLS_NSMU,
1461 MT_USB_DEVICE(USB_VENDOR_ID_UNITEC,
1462 USB_DEVICE_ID_UNITEC_USB_TOUCH_0709) },
1463 { .driver_data = MT_CLS_NSMU,
1464 MT_USB_DEVICE(USB_VENDOR_ID_UNITEC,
1465 USB_DEVICE_ID_UNITEC_USB_TOUCH_0A19) },
1466
1467 /* VTL panels */
1468 { .driver_data = MT_CLS_VTL,
1469 MT_USB_DEVICE(USB_VENDOR_ID_VTL,
1470 USB_DEVICE_ID_VTL_MULTITOUCH_FF3F) },
1471
1472 /* Wistron panels */
1473 { .driver_data = MT_CLS_NSMU,
1474 MT_USB_DEVICE(USB_VENDOR_ID_WISTRON,
1475 USB_DEVICE_ID_WISTRON_OPTICAL_TOUCH) },
1476
1477 /* XAT */
1478 { .driver_data = MT_CLS_NSMU,
1479 MT_USB_DEVICE(USB_VENDOR_ID_XAT,
1480 USB_DEVICE_ID_XAT_CSR) },
1481
1482 /* Xiroku */
1483 { .driver_data = MT_CLS_NSMU,
1484 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1485 USB_DEVICE_ID_XIROKU_SPX) },
1486 { .driver_data = MT_CLS_NSMU,
1487 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1488 USB_DEVICE_ID_XIROKU_MPX) },
1489 { .driver_data = MT_CLS_NSMU,
1490 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1491 USB_DEVICE_ID_XIROKU_CSR) },
1492 { .driver_data = MT_CLS_NSMU,
1493 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1494 USB_DEVICE_ID_XIROKU_SPX1) },
1495 { .driver_data = MT_CLS_NSMU,
1496 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1497 USB_DEVICE_ID_XIROKU_MPX1) },
1498 { .driver_data = MT_CLS_NSMU,
1499 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1500 USB_DEVICE_ID_XIROKU_CSR1) },
1501 { .driver_data = MT_CLS_NSMU,
1502 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1503 USB_DEVICE_ID_XIROKU_SPX2) },
1504 { .driver_data = MT_CLS_NSMU,
1505 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1506 USB_DEVICE_ID_XIROKU_MPX2) },
1507 { .driver_data = MT_CLS_NSMU,
1508 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1509 USB_DEVICE_ID_XIROKU_CSR2) },
1510
1511 /* Generic MT device */
1512 { HID_DEVICE(HID_BUS_ANY, HID_GROUP_MULTITOUCH, HID_ANY_ID, HID_ANY_ID) },
1513
1514 /* Generic Win 8 certified MT device */
1515 { .driver_data = MT_CLS_WIN_8,
1516 HID_DEVICE(HID_BUS_ANY, HID_GROUP_MULTITOUCH_WIN_8,
1517 HID_ANY_ID, HID_ANY_ID) },
1518 { }
1519 };
1520 MODULE_DEVICE_TABLE(hid, mt_devices);
1521
1522 static const struct hid_usage_id mt_grabbed_usages[] = {
1523 { HID_ANY_ID, HID_ANY_ID, HID_ANY_ID },
1524 { HID_ANY_ID - 1, HID_ANY_ID - 1, HID_ANY_ID - 1}
1525 };
1526
1527 static struct hid_driver mt_driver = {
1528 .name = "hid-multitouch",
1529 .id_table = mt_devices,
1530 .probe = mt_probe,
1531 .remove = mt_remove,
1532 .input_mapping = mt_input_mapping,
1533 .input_mapped = mt_input_mapped,
1534 .input_configured = mt_input_configured,
1535 .feature_mapping = mt_feature_mapping,
1536 .usage_table = mt_grabbed_usages,
1537 .event = mt_event,
1538 .report = mt_report,
1539 #ifdef CONFIG_PM
1540 .reset_resume = mt_reset_resume,
1541 .resume = mt_resume,
1542 #endif
1543 };
1544 module_hid_driver(mt_driver);
Linux with added FPC-III support