projects / GitHub / mt8127 / android_kernel_alcatel_ttab.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
blame | history | raw | HEAD
md/bitmap: disable bitmap_resize for file-backed bitmaps.
[GitHub/mt8127/android_kernel_alcatel_ttab.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/usb.h>
46 #include <linux/input/mt.h>
47 #include <linux/string.h>
48
49
50 MODULE_AUTHOR("Stephane Chatty <chatty@enac.fr>");
51 MODULE_AUTHOR("Benjamin Tissoires <benjamin.tissoires@gmail.com>");
52 MODULE_DESCRIPTION("HID multitouch panels");
53 MODULE_LICENSE("GPL");
54
55 #include "hid-ids.h"
56
57 /* quirks to control the device */
58 #define MT_QUIRK_NOT_SEEN_MEANS_UP (1 << 0)
59 #define MT_QUIRK_SLOT_IS_CONTACTID (1 << 1)
60 #define MT_QUIRK_CYPRESS (1 << 2)
61 #define MT_QUIRK_SLOT_IS_CONTACTNUMBER (1 << 3)
62 #define MT_QUIRK_ALWAYS_VALID (1 << 4)
63 #define MT_QUIRK_VALID_IS_INRANGE (1 << 5)
64 #define MT_QUIRK_VALID_IS_CONFIDENCE (1 << 6)
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
71 struct mt_slot {
72 __s32 x, y, cx, cy, p, w, h;
73 __s32 contactid; /* the device ContactID assigned to this slot */
74 bool touch_state; /* is the touch valid? */
75 bool inrange_state; /* is the finger in proximity of the sensor? */
76 };
77
78 struct mt_class {
79 __s32 name; /* MT_CLS */
80 __s32 quirks;
81 __s32 sn_move; /* Signal/noise ratio for move events */
82 __s32 sn_width; /* Signal/noise ratio for width events */
83 __s32 sn_height; /* Signal/noise ratio for height events */
84 __s32 sn_pressure; /* Signal/noise ratio for pressure events */
85 __u8 maxcontacts;
86 bool is_indirect; /* true for touchpads */
87 };
88
89 struct mt_fields {
90 unsigned usages[HID_MAX_FIELDS];
91 unsigned int length;
92 };
93
94 struct mt_device {
95 struct mt_slot curdata; /* placeholder of incoming data */
96 struct mt_class mtclass; /* our mt device class */
97 struct mt_fields *fields; /* temporary placeholder for storing the
98 multitouch fields */
99 int cc_index; /* contact count field index in the report */
100 int cc_value_index; /* contact count value index in the field */
101 unsigned last_slot_field; /* the last field of a slot */
102 unsigned mt_report_id; /* the report ID of the multitouch device */
103 unsigned pen_report_id; /* the report ID of the pen device */
104 __s16 inputmode; /* InputMode HID feature, -1 if non-existent */
105 __s16 inputmode_index; /* InputMode HID feature index in the report */
106 __s16 maxcontact_report_id; /* Maximum Contact Number HID feature,
107 -1 if non-existent */
108 __u8 num_received; /* how many contacts we received */
109 __u8 num_expected; /* expected last contact index */
110 __u8 maxcontacts;
111 __u8 touches_by_report; /* how many touches are present in one report:
112 * 1 means we should use a serial protocol
113 * > 1 means hybrid (multitouch) protocol */
114 bool serial_maybe; /* need to check for serial protocol */
115 bool curvalid; /* is the current contact valid? */
116 unsigned mt_flags; /* flags to pass to input-mt */
117 };
118
119 static void mt_post_parse_default_settings(struct mt_device *td);
120 static void mt_post_parse(struct mt_device *td);
121
122 /* classes of device behavior */
123 #define MT_CLS_DEFAULT 0x0001
124
125 #define MT_CLS_SERIAL 0x0002
126 #define MT_CLS_CONFIDENCE 0x0003
127 #define MT_CLS_CONFIDENCE_CONTACT_ID 0x0004
128 #define MT_CLS_CONFIDENCE_MINUS_ONE 0x0005
129 #define MT_CLS_DUAL_INRANGE_CONTACTID 0x0006
130 #define MT_CLS_DUAL_INRANGE_CONTACTNUMBER 0x0007
131 #define MT_CLS_DUAL_NSMU_CONTACTID 0x0008
132 #define MT_CLS_INRANGE_CONTACTNUMBER 0x0009
133 #define MT_CLS_NSMU 0x000a
134 #define MT_CLS_DUAL_CONTACT_NUMBER 0x0010
135 #define MT_CLS_DUAL_CONTACT_ID 0x0011
136
137 /* vendor specific classes */
138 #define MT_CLS_3M 0x0101
139 #define MT_CLS_CYPRESS 0x0102
140 #define MT_CLS_EGALAX 0x0103
141 #define MT_CLS_EGALAX_SERIAL 0x0104
142 #define MT_CLS_TOPSEED 0x0105
143 #define MT_CLS_PANASONIC 0x0106
144 #define MT_CLS_FLATFROG 0x0107
145 #define MT_CLS_GENERALTOUCH_TWOFINGERS 0x0108
146 #define MT_CLS_GENERALTOUCH_PWT_TENFINGERS 0x0109
147
148 #define MT_DEFAULT_MAXCONTACT 10
149 #define MT_MAX_MAXCONTACT 250
150
151 #define MT_USB_DEVICE(v, p) HID_DEVICE(BUS_USB, HID_GROUP_MULTITOUCH, v, p)
152 #define MT_BT_DEVICE(v, p) HID_DEVICE(BUS_BLUETOOTH, HID_GROUP_MULTITOUCH, v, p)
153
154 /*
155 * these device-dependent functions determine what slot corresponds
156 * to a valid contact that was just read.
157 */
158
159 static int cypress_compute_slot(struct mt_device *td)
160 {
161 if (td->curdata.contactid != 0 || td->num_received == 0)
162 return td->curdata.contactid;
163 else
164 return -1;
165 }
166
167 static struct mt_class mt_classes[] = {
168 { .name = MT_CLS_DEFAULT,
169 .quirks = MT_QUIRK_ALWAYS_VALID |
170 MT_QUIRK_CONTACT_CNT_ACCURATE },
171 { .name = MT_CLS_NSMU,
172 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP },
173 { .name = MT_CLS_SERIAL,
174 .quirks = MT_QUIRK_ALWAYS_VALID},
175 { .name = MT_CLS_CONFIDENCE,
176 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE },
177 { .name = MT_CLS_CONFIDENCE_CONTACT_ID,
178 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE |
179 MT_QUIRK_SLOT_IS_CONTACTID },
180 { .name = MT_CLS_CONFIDENCE_MINUS_ONE,
181 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE |
182 MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE },
183 { .name = MT_CLS_DUAL_INRANGE_CONTACTID,
184 .quirks = MT_QUIRK_VALID_IS_INRANGE |
185 MT_QUIRK_SLOT_IS_CONTACTID,
186 .maxcontacts = 2 },
187 { .name = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
188 .quirks = MT_QUIRK_VALID_IS_INRANGE |
189 MT_QUIRK_SLOT_IS_CONTACTNUMBER,
190 .maxcontacts = 2 },
191 { .name = MT_CLS_DUAL_NSMU_CONTACTID,
192 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP |
193 MT_QUIRK_SLOT_IS_CONTACTID,
194 .maxcontacts = 2 },
195 { .name = MT_CLS_INRANGE_CONTACTNUMBER,
196 .quirks = MT_QUIRK_VALID_IS_INRANGE |
197 MT_QUIRK_SLOT_IS_CONTACTNUMBER },
198 { .name = MT_CLS_DUAL_CONTACT_NUMBER,
199 .quirks = MT_QUIRK_ALWAYS_VALID |
200 MT_QUIRK_CONTACT_CNT_ACCURATE |
201 MT_QUIRK_SLOT_IS_CONTACTNUMBER,
202 .maxcontacts = 2 },
203 { .name = MT_CLS_DUAL_CONTACT_ID,
204 .quirks = MT_QUIRK_ALWAYS_VALID |
205 MT_QUIRK_CONTACT_CNT_ACCURATE |
206 MT_QUIRK_SLOT_IS_CONTACTID,
207 .maxcontacts = 2 },
208
209 /*
210 * vendor specific classes
211 */
212 { .name = MT_CLS_3M,
213 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE |
214 MT_QUIRK_SLOT_IS_CONTACTID,
215 .sn_move = 2048,
216 .sn_width = 128,
217 .sn_height = 128,
218 .maxcontacts = 60,
219 },
220 { .name = MT_CLS_CYPRESS,
221 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP |
222 MT_QUIRK_CYPRESS,
223 .maxcontacts = 10 },
224 { .name = MT_CLS_EGALAX,
225 .quirks = MT_QUIRK_SLOT_IS_CONTACTID |
226 MT_QUIRK_VALID_IS_INRANGE,
227 .sn_move = 4096,
228 .sn_pressure = 32,
229 },
230 { .name = MT_CLS_EGALAX_SERIAL,
231 .quirks = MT_QUIRK_SLOT_IS_CONTACTID |
232 MT_QUIRK_ALWAYS_VALID,
233 .sn_move = 4096,
234 .sn_pressure = 32,
235 },
236 { .name = MT_CLS_TOPSEED,
237 .quirks = MT_QUIRK_ALWAYS_VALID,
238 .is_indirect = true,
239 .maxcontacts = 2,
240 },
241 { .name = MT_CLS_PANASONIC,
242 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP,
243 .maxcontacts = 4 },
244 { .name = MT_CLS_GENERALTOUCH_TWOFINGERS,
245 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP |
246 MT_QUIRK_VALID_IS_INRANGE |
247 MT_QUIRK_SLOT_IS_CONTACTID,
248 .maxcontacts = 2
249 },
250 { .name = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
251 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP |
252 MT_QUIRK_SLOT_IS_CONTACTID
253 },
254
255 { .name = MT_CLS_FLATFROG,
256 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP |
257 MT_QUIRK_NO_AREA,
258 .sn_move = 2048,
259 .maxcontacts = 40,
260 },
261 { }
262 };
263
264 static void mt_free_input_name(struct hid_input *hi)
265 {
266 struct hid_device *hdev = hi->report->device;
267 const char *name = hi->input->name;
268
269 if (name != hdev->name) {
270 hi->input->name = hdev->name;
271 kfree(name);
272 }
273 }
274
275 static ssize_t mt_show_quirks(struct device *dev,
276 struct device_attribute *attr,
277 char *buf)
278 {
279 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
280 struct mt_device *td = hid_get_drvdata(hdev);
281
282 return sprintf(buf, "%u\n", td->mtclass.quirks);
283 }
284
285 static ssize_t mt_set_quirks(struct device *dev,
286 struct device_attribute *attr,
287 const char *buf, size_t count)
288 {
289 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
290 struct mt_device *td = hid_get_drvdata(hdev);
291
292 unsigned long val;
293
294 if (kstrtoul(buf, 0, &val))
295 return -EINVAL;
296
297 td->mtclass.quirks = val;
298
299 if (td->cc_index < 0)
300 td->mtclass.quirks &= ~MT_QUIRK_CONTACT_CNT_ACCURATE;
301
302 return count;
303 }
304
305 static DEVICE_ATTR(quirks, S_IWUSR | S_IRUGO, mt_show_quirks, mt_set_quirks);
306
307 static struct attribute *sysfs_attrs[] = {
308 &dev_attr_quirks.attr,
309 NULL
310 };
311
312 static struct attribute_group mt_attribute_group = {
313 .attrs = sysfs_attrs
314 };
315
316 static void mt_feature_mapping(struct hid_device *hdev,
317 struct hid_field *field, struct hid_usage *usage)
318 {
319 struct mt_device *td = hid_get_drvdata(hdev);
320
321 switch (usage->hid) {
322 case HID_DG_INPUTMODE:
323 /* Ignore if value index is out of bounds. */
324 if (usage->usage_index >= field->report_count) {
325 dev_err(&hdev->dev, "HID_DG_INPUTMODE out of range\n");
326 break;
327 }
328
329 td->inputmode = field->report->id;
330 td->inputmode_index = usage->usage_index;
331
332 break;
333 case HID_DG_CONTACTMAX:
334 td->maxcontact_report_id = field->report->id;
335 td->maxcontacts = field->value[0];
336 if (!td->maxcontacts &&
337 field->logical_maximum <= MT_MAX_MAXCONTACT)
338 td->maxcontacts = field->logical_maximum;
339 if (td->mtclass.maxcontacts)
340 /* check if the maxcontacts is given by the class */
341 td->maxcontacts = td->mtclass.maxcontacts;
342
343 break;
344 case 0xff0000c5:
345 if (field->report_count == 256 && field->report_size == 8) {
346 /* Win 8 devices need special quirks */
347 __s32 *quirks = &td->mtclass.quirks;
348 *quirks |= MT_QUIRK_ALWAYS_VALID;
349 *quirks |= MT_QUIRK_IGNORE_DUPLICATES;
350 *quirks |= MT_QUIRK_HOVERING;
351 *quirks |= MT_QUIRK_CONTACT_CNT_ACCURATE;
352 *quirks &= ~MT_QUIRK_NOT_SEEN_MEANS_UP;
353 *quirks &= ~MT_QUIRK_VALID_IS_INRANGE;
354 *quirks &= ~MT_QUIRK_VALID_IS_CONFIDENCE;
355 }
356 break;
357 }
358 }
359
360 static void set_abs(struct input_dev *input, unsigned int code,
361 struct hid_field *field, int snratio)
362 {
363 int fmin = field->logical_minimum;
364 int fmax = field->logical_maximum;
365 int fuzz = snratio ? (fmax - fmin) / snratio : 0;
366 input_set_abs_params(input, code, fmin, fmax, fuzz, 0);
367 input_abs_set_res(input, code, hidinput_calc_abs_res(field, code));
368 }
369
370 static void mt_store_field(struct hid_usage *usage, struct mt_device *td,
371 struct hid_input *hi)
372 {
373 struct mt_fields *f = td->fields;
374
375 if (f->length >= HID_MAX_FIELDS)
376 return;
377
378 f->usages[f->length++] = usage->hid;
379 }
380
381 static int mt_pen_input_mapping(struct hid_device *hdev, struct hid_input *hi,
382 struct hid_field *field, struct hid_usage *usage,
383 unsigned long **bit, int *max)
384 {
385 struct mt_device *td = hid_get_drvdata(hdev);
386
387 td->pen_report_id = field->report->id;
388
389 return 0;
390 }
391
392 static int mt_pen_input_mapped(struct hid_device *hdev, struct hid_input *hi,
393 struct hid_field *field, struct hid_usage *usage,
394 unsigned long **bit, int *max)
395 {
396 return 0;
397 }
398
399 static int mt_pen_event(struct hid_device *hid, struct hid_field *field,
400 struct hid_usage *usage, __s32 value)
401 {
402 /* let hid-input handle it */
403 return 0;
404 }
405
406 static void mt_pen_report(struct hid_device *hid, struct hid_report *report)
407 {
408 struct hid_field *field = report->field[0];
409
410 input_sync(field->hidinput->input);
411 }
412
413 static void mt_pen_input_configured(struct hid_device *hdev,
414 struct hid_input *hi)
415 {
416 char *name = kzalloc(strlen(hi->input->name) + 5, GFP_KERNEL);
417 if (name) {
418 sprintf(name, "%s Pen", hi->input->name);
419 mt_free_input_name(hi);
420 hi->input->name = name;
421 }
422
423 /* force BTN_STYLUS to allow tablet matching in udev */
424 __set_bit(BTN_STYLUS, hi->input->keybit);
425 }
426
427 static int mt_touch_input_mapping(struct hid_device *hdev, struct hid_input *hi,
428 struct hid_field *field, struct hid_usage *usage,
429 unsigned long **bit, int *max)
430 {
431 struct mt_device *td = hid_get_drvdata(hdev);
432 struct mt_class *cls = &td->mtclass;
433 int code;
434 struct hid_usage *prev_usage = NULL;
435
436 if (field->application == HID_DG_TOUCHSCREEN)
437 td->mt_flags |= INPUT_MT_DIRECT;
438
439 /*
440 * Model touchscreens providing buttons as touchpads.
441 */
442 if (field->application == HID_DG_TOUCHPAD ||
443 (usage->hid & HID_USAGE_PAGE) == HID_UP_BUTTON)
444 td->mt_flags |= INPUT_MT_POINTER;
445
446 if (usage->usage_index)
447 prev_usage = &field->usage[usage->usage_index - 1];
448
449 switch (usage->hid & HID_USAGE_PAGE) {
450
451 case HID_UP_GENDESK:
452 switch (usage->hid) {
453 case HID_GD_X:
454 if (prev_usage && (prev_usage->hid == usage->hid)) {
455 hid_map_usage(hi, usage, bit, max,
456 EV_ABS, ABS_MT_TOOL_X);
457 set_abs(hi->input, ABS_MT_TOOL_X, field,
458 cls->sn_move);
459 } else {
460 hid_map_usage(hi, usage, bit, max,
461 EV_ABS, ABS_MT_POSITION_X);
462 set_abs(hi->input, ABS_MT_POSITION_X, field,
463 cls->sn_move);
464 }
465
466 mt_store_field(usage, td, hi);
467 return 1;
468 case HID_GD_Y:
469 if (prev_usage && (prev_usage->hid == usage->hid)) {
470 hid_map_usage(hi, usage, bit, max,
471 EV_ABS, ABS_MT_TOOL_Y);
472 set_abs(hi->input, ABS_MT_TOOL_Y, field,
473 cls->sn_move);
474 } else {
475 hid_map_usage(hi, usage, bit, max,
476 EV_ABS, ABS_MT_POSITION_Y);
477 set_abs(hi->input, ABS_MT_POSITION_Y, field,
478 cls->sn_move);
479 }
480
481 mt_store_field(usage, td, hi);
482 return 1;
483 }
484 return 0;
485
486 case HID_UP_DIGITIZER:
487 switch (usage->hid) {
488 case HID_DG_INRANGE:
489 if (cls->quirks & MT_QUIRK_HOVERING) {
490 hid_map_usage(hi, usage, bit, max,
491 EV_ABS, ABS_MT_DISTANCE);
492 input_set_abs_params(hi->input,
493 ABS_MT_DISTANCE, 0, 1, 0, 0);
494 }
495 mt_store_field(usage, td, hi);
496 return 1;
497 case HID_DG_CONFIDENCE:
498 mt_store_field(usage, td, hi);
499 return 1;
500 case HID_DG_TIPSWITCH:
501 hid_map_usage(hi, usage, bit, max, EV_KEY, BTN_TOUCH);
502 input_set_capability(hi->input, EV_KEY, BTN_TOUCH);
503 mt_store_field(usage, td, hi);
504 return 1;
505 case HID_DG_CONTACTID:
506 mt_store_field(usage, td, hi);
507 td->touches_by_report++;
508 td->mt_report_id = field->report->id;
509 return 1;
510 case HID_DG_WIDTH:
511 hid_map_usage(hi, usage, bit, max,
512 EV_ABS, ABS_MT_TOUCH_MAJOR);
513 if (!(cls->quirks & MT_QUIRK_NO_AREA))
514 set_abs(hi->input, ABS_MT_TOUCH_MAJOR, field,
515 cls->sn_width);
516 mt_store_field(usage, td, hi);
517 return 1;
518 case HID_DG_HEIGHT:
519 hid_map_usage(hi, usage, bit, max,
520 EV_ABS, ABS_MT_TOUCH_MINOR);
521 if (!(cls->quirks & MT_QUIRK_NO_AREA)) {
522 set_abs(hi->input, ABS_MT_TOUCH_MINOR, field,
523 cls->sn_height);
524 input_set_abs_params(hi->input,
525 ABS_MT_ORIENTATION, 0, 1, 0, 0);
526 }
527 mt_store_field(usage, td, hi);
528 return 1;
529 case HID_DG_TIPPRESSURE:
530 hid_map_usage(hi, usage, bit, max,
531 EV_ABS, ABS_MT_PRESSURE);
532 set_abs(hi->input, ABS_MT_PRESSURE, field,
533 cls->sn_pressure);
534 mt_store_field(usage, td, hi);
535 return 1;
536 case HID_DG_CONTACTCOUNT:
537 /* Ignore if indexes are out of bounds. */
538 if (field->index >= field->report->maxfield ||
539 usage->usage_index >= field->report_count)
540 return 1;
541 td->cc_index = field->index;
542 td->cc_value_index = usage->usage_index;
543 return 1;
544 case HID_DG_CONTACTMAX:
545 /* we don't set td->last_slot_field as contactcount and
546 * contact max are global to the report */
547 return -1;
548 case HID_DG_TOUCH:
549 /* Legacy devices use TIPSWITCH and not TOUCH.
550 * Let's just ignore this field. */
551 return -1;
552 }
553 /* let hid-input decide for the others */
554 return 0;
555
556 case HID_UP_BUTTON:
557 code = BTN_MOUSE + ((usage->hid - 1) & HID_USAGE);
558 hid_map_usage(hi, usage, bit, max, EV_KEY, code);
559 input_set_capability(hi->input, EV_KEY, code);
560 return 1;
561
562 case 0xff000000:
563 /* we do not want to map these: no input-oriented meaning */
564 return -1;
565 }
566
567 return 0;
568 }
569
570 static int mt_touch_input_mapped(struct hid_device *hdev, struct hid_input *hi,
571 struct hid_field *field, struct hid_usage *usage,
572 unsigned long **bit, int *max)
573 {
574 if (usage->type == EV_KEY || usage->type == EV_ABS)
575 set_bit(usage->type, hi->input->evbit);
576
577 return -1;
578 }
579
580 static int mt_compute_slot(struct mt_device *td, struct input_dev *input)
581 {
582 __s32 quirks = td->mtclass.quirks;
583
584 if (quirks & MT_QUIRK_SLOT_IS_CONTACTID)
585 return td->curdata.contactid;
586
587 if (quirks & MT_QUIRK_CYPRESS)
588 return cypress_compute_slot(td);
589
590 if (quirks & MT_QUIRK_SLOT_IS_CONTACTNUMBER)
591 return td->num_received;
592
593 if (quirks & MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE)
594 return td->curdata.contactid - 1;
595
596 return input_mt_get_slot_by_key(input, td->curdata.contactid);
597 }
598
599 /*
600 * this function is called when a whole contact has been processed,
601 * so that it can assign it to a slot and store the data there
602 */
603 static void mt_complete_slot(struct mt_device *td, struct input_dev *input)
604 {
605 if ((td->mtclass.quirks & MT_QUIRK_CONTACT_CNT_ACCURATE) &&
606 td->num_received >= td->num_expected)
607 return;
608
609 if (td->curvalid || (td->mtclass.quirks & MT_QUIRK_ALWAYS_VALID)) {
610 int slotnum = mt_compute_slot(td, input);
611 struct mt_slot *s = &td->curdata;
612 struct input_mt *mt = input->mt;
613
614 if (slotnum < 0 || slotnum >= td->maxcontacts)
615 return;
616
617 if ((td->mtclass.quirks & MT_QUIRK_IGNORE_DUPLICATES) && mt) {
618 struct input_mt_slot *slot = &mt->slots[slotnum];
619 if (input_mt_is_active(slot) &&
620 input_mt_is_used(mt, slot))
621 return;
622 }
623
624 input_mt_slot(input, slotnum);
625 input_mt_report_slot_state(input, MT_TOOL_FINGER,
626 s->touch_state || s->inrange_state);
627 if (s->touch_state || s->inrange_state) {
628 /* this finger is in proximity of the sensor */
629 int wide = (s->w > s->h);
630 /* divided by two to match visual scale of touch */
631 int major = max(s->w, s->h) >> 1;
632 int minor = min(s->w, s->h) >> 1;
633
634 input_event(input, EV_ABS, ABS_MT_POSITION_X, s->x);
635 input_event(input, EV_ABS, ABS_MT_POSITION_Y, s->y);
636 input_event(input, EV_ABS, ABS_MT_TOOL_X, s->cx);
637 input_event(input, EV_ABS, ABS_MT_TOOL_Y, s->cy);
638 input_event(input, EV_ABS, ABS_MT_DISTANCE,
639 !s->touch_state);
640 input_event(input, EV_ABS, ABS_MT_ORIENTATION, wide);
641 input_event(input, EV_ABS, ABS_MT_PRESSURE, s->p);
642 input_event(input, EV_ABS, ABS_MT_TOUCH_MAJOR, major);
643 input_event(input, EV_ABS, ABS_MT_TOUCH_MINOR, minor);
644 }
645 }
646
647 td->num_received++;
648 }
649
650 /*
651 * this function is called when a whole packet has been received and processed,
652 * so that it can decide what to send to the input layer.
653 */
654 static void mt_sync_frame(struct mt_device *td, struct input_dev *input)
655 {
656 input_mt_sync_frame(input);
657 input_sync(input);
658 td->num_received = 0;
659 }
660
661 static int mt_touch_event(struct hid_device *hid, struct hid_field *field,
662 struct hid_usage *usage, __s32 value)
663 {
664 /* we will handle the hidinput part later, now remains hiddev */
665 if (hid->claimed & HID_CLAIMED_HIDDEV && hid->hiddev_hid_event)
666 hid->hiddev_hid_event(hid, field, usage, value);
667
668 return 1;
669 }
670
671 static void mt_process_mt_event(struct hid_device *hid, struct hid_field *field,
672 struct hid_usage *usage, __s32 value)
673 {
674 struct mt_device *td = hid_get_drvdata(hid);
675 __s32 quirks = td->mtclass.quirks;
676 struct input_dev *input = field->hidinput->input;
677
678 if (hid->claimed & HID_CLAIMED_INPUT) {
679 switch (usage->hid) {
680 case HID_DG_INRANGE:
681 if (quirks & MT_QUIRK_VALID_IS_INRANGE)
682 td->curvalid = value;
683 if (quirks & MT_QUIRK_HOVERING)
684 td->curdata.inrange_state = value;
685 break;
686 case HID_DG_TIPSWITCH:
687 if (quirks & MT_QUIRK_NOT_SEEN_MEANS_UP)
688 td->curvalid = value;
689 td->curdata.touch_state = value;
690 break;
691 case HID_DG_CONFIDENCE:
692 if (quirks & MT_QUIRK_VALID_IS_CONFIDENCE)
693 td->curvalid = value;
694 break;
695 case HID_DG_CONTACTID:
696 td->curdata.contactid = value;
697 break;
698 case HID_DG_TIPPRESSURE:
699 td->curdata.p = value;
700 break;
701 case HID_GD_X:
702 if (usage->code == ABS_MT_TOOL_X)
703 td->curdata.cx = value;
704 else
705 td->curdata.x = value;
706 break;
707 case HID_GD_Y:
708 if (usage->code == ABS_MT_TOOL_Y)
709 td->curdata.cy = value;
710 else
711 td->curdata.y = value;
712 break;
713 case HID_DG_WIDTH:
714 td->curdata.w = value;
715 break;
716 case HID_DG_HEIGHT:
717 td->curdata.h = value;
718 break;
719 case HID_DG_CONTACTCOUNT:
720 break;
721 case HID_DG_TOUCH:
722 /* do nothing */
723 break;
724
725 default:
726 if (usage->type)
727 input_event(input, usage->type, usage->code,
728 value);
729 return;
730 }
731
732 if (usage->usage_index + 1 == field->report_count) {
733 /* we only take into account the last report. */
734 if (usage->hid == td->last_slot_field)
735 mt_complete_slot(td, field->hidinput->input);
736 }
737
738 }
739 }
740
741 static void mt_touch_report(struct hid_device *hid, struct hid_report *report)
742 {
743 struct mt_device *td = hid_get_drvdata(hid);
744 struct hid_field *field;
745 unsigned count;
746 int r, n;
747
748 /*
749 * Includes multi-packet support where subsequent
750 * packets are sent with zero contactcount.
751 */
752 if (td->cc_index >= 0) {
753 struct hid_field *field = report->field[td->cc_index];
754 int value = field->value[td->cc_value_index];
755 if (value)
756 td->num_expected = value;
757 }
758
759 for (r = 0; r < report->maxfield; r++) {
760 field = report->field[r];
761 count = field->report_count;
762
763 if (!(HID_MAIN_ITEM_VARIABLE & field->flags))
764 continue;
765
766 for (n = 0; n < count; n++)
767 mt_process_mt_event(hid, field, &field->usage[n],
768 field->value[n]);
769 }
770
771 if (td->num_received >= td->num_expected)
772 mt_sync_frame(td, report->field[0]->hidinput->input);
773 }
774
775 static void mt_touch_input_configured(struct hid_device *hdev,
776 struct hid_input *hi)
777 {
778 struct mt_device *td = hid_get_drvdata(hdev);
779 struct mt_class *cls = &td->mtclass;
780 struct input_dev *input = hi->input;
781
782 if (!td->maxcontacts)
783 td->maxcontacts = MT_DEFAULT_MAXCONTACT;
784
785 mt_post_parse(td);
786 if (td->serial_maybe)
787 mt_post_parse_default_settings(td);
788
789 if (cls->is_indirect)
790 td->mt_flags |= INPUT_MT_POINTER;
791
792 if (cls->quirks & MT_QUIRK_NOT_SEEN_MEANS_UP)
793 td->mt_flags |= INPUT_MT_DROP_UNUSED;
794
795 input_mt_init_slots(input, td->maxcontacts, td->mt_flags);
796
797 td->mt_flags = 0;
798 }
799
800 static int mt_input_mapping(struct hid_device *hdev, struct hid_input *hi,
801 struct hid_field *field, struct hid_usage *usage,
802 unsigned long **bit, int *max)
803 {
804 /* Only map fields from TouchScreen or TouchPad collections.
805 * We need to ignore fields that belong to other collections
806 * such as Mouse that might have the same GenericDesktop usages. */
807 if (field->application != HID_DG_TOUCHSCREEN &&
808 field->application != HID_DG_PEN &&
809 field->application != HID_DG_TOUCHPAD)
810 return -1;
811
812 if (field->physical == HID_DG_STYLUS)
813 return mt_pen_input_mapping(hdev, hi, field, usage, bit, max);
814
815 return mt_touch_input_mapping(hdev, hi, field, usage, bit, max);
816 }
817
818 static int mt_input_mapped(struct hid_device *hdev, struct hid_input *hi,
819 struct hid_field *field, struct hid_usage *usage,
820 unsigned long **bit, int *max)
821 {
822 if (field->physical == HID_DG_STYLUS)
823 return mt_pen_input_mapped(hdev, hi, field, usage, bit, max);
824
825 return mt_touch_input_mapped(hdev, hi, field, usage, bit, max);
826 }
827
828 static int mt_event(struct hid_device *hid, struct hid_field *field,
829 struct hid_usage *usage, __s32 value)
830 {
831 struct mt_device *td = hid_get_drvdata(hid);
832
833 if (field->report->id == td->mt_report_id)
834 return mt_touch_event(hid, field, usage, value);
835
836 if (field->report->id == td->pen_report_id)
837 return mt_pen_event(hid, field, usage, value);
838
839 /* ignore other reports */
840 return 1;
841 }
842
843 static void mt_report(struct hid_device *hid, struct hid_report *report)
844 {
845 struct mt_device *td = hid_get_drvdata(hid);
846
847 if (!(hid->claimed & HID_CLAIMED_INPUT))
848 return;
849
850 if (report->id == td->mt_report_id)
851 mt_touch_report(hid, report);
852
853 if (report->id == td->pen_report_id)
854 mt_pen_report(hid, report);
855 }
856
857 static void mt_set_input_mode(struct hid_device *hdev)
858 {
859 struct mt_device *td = hid_get_drvdata(hdev);
860 struct hid_report *r;
861 struct hid_report_enum *re;
862
863 if (td->inputmode < 0)
864 return;
865
866 re = &(hdev->report_enum[HID_FEATURE_REPORT]);
867 r = re->report_id_hash[td->inputmode];
868 if (r) {
869 r->field[0]->value[td->inputmode_index] = 0x02;
870 hid_hw_request(hdev, r, HID_REQ_SET_REPORT);
871 }
872 }
873
874 static void mt_set_maxcontacts(struct hid_device *hdev)
875 {
876 struct mt_device *td = hid_get_drvdata(hdev);
877 struct hid_report *r;
878 struct hid_report_enum *re;
879 int fieldmax, max;
880
881 if (td->maxcontact_report_id < 0)
882 return;
883
884 if (!td->mtclass.maxcontacts)
885 return;
886
887 re = &hdev->report_enum[HID_FEATURE_REPORT];
888 r = re->report_id_hash[td->maxcontact_report_id];
889 if (r) {
890 max = td->mtclass.maxcontacts;
891 fieldmax = r->field[0]->logical_maximum;
892 max = min(fieldmax, max);
893 if (r->field[0]->value[0] != max) {
894 r->field[0]->value[0] = max;
895 hid_hw_request(hdev, r, HID_REQ_SET_REPORT);
896 }
897 }
898 }
899
900 static void mt_post_parse_default_settings(struct mt_device *td)
901 {
902 __s32 quirks = td->mtclass.quirks;
903
904 /* unknown serial device needs special quirks */
905 if (td->touches_by_report == 1) {
906 quirks |= MT_QUIRK_ALWAYS_VALID;
907 quirks &= ~MT_QUIRK_NOT_SEEN_MEANS_UP;
908 quirks &= ~MT_QUIRK_VALID_IS_INRANGE;
909 quirks &= ~MT_QUIRK_VALID_IS_CONFIDENCE;
910 quirks &= ~MT_QUIRK_CONTACT_CNT_ACCURATE;
911 }
912
913 td->mtclass.quirks = quirks;
914 }
915
916 static void mt_post_parse(struct mt_device *td)
917 {
918 struct mt_fields *f = td->fields;
919 struct mt_class *cls = &td->mtclass;
920
921 if (td->touches_by_report > 0) {
922 int field_count_per_touch = f->length / td->touches_by_report;
923 td->last_slot_field = f->usages[field_count_per_touch - 1];
924 }
925
926 if (td->cc_index < 0)
927 cls->quirks &= ~MT_QUIRK_CONTACT_CNT_ACCURATE;
928 }
929
930 static void mt_input_configured(struct hid_device *hdev, struct hid_input *hi)
931 {
932 struct mt_device *td = hid_get_drvdata(hdev);
933 char *name = kstrdup(hdev->name, GFP_KERNEL);
934
935 if (name)
936 hi->input->name = name;
937
938 if (hi->report->id == td->mt_report_id)
939 mt_touch_input_configured(hdev, hi);
940
941 if (hi->report->id == td->pen_report_id)
942 mt_pen_input_configured(hdev, hi);
943 }
944
945 static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id)
946 {
947 int ret, i;
948 struct mt_device *td;
949 struct mt_class *mtclass = mt_classes; /* MT_CLS_DEFAULT */
950 struct hid_input *hi;
951
952 for (i = 0; mt_classes[i].name ; i++) {
953 if (id->driver_data == mt_classes[i].name) {
954 mtclass = &(mt_classes[i]);
955 break;
956 }
957 }
958
959 /* This allows the driver to correctly support devices
960 * that emit events over several HID messages.
961 */
962 hdev->quirks |= HID_QUIRK_NO_INPUT_SYNC;
963
964 /*
965 * This allows the driver to handle different input sensors
966 * that emits events through different reports on the same HID
967 * device.
968 */
969 hdev->quirks |= HID_QUIRK_MULTI_INPUT;
970 hdev->quirks |= HID_QUIRK_NO_EMPTY_INPUT;
971
972 td = kzalloc(sizeof(struct mt_device), GFP_KERNEL);
973 if (!td) {
974 dev_err(&hdev->dev, "cannot allocate multitouch data\n");
975 return -ENOMEM;
976 }
977 td->mtclass = *mtclass;
978 td->inputmode = -1;
979 td->maxcontact_report_id = -1;
980 td->cc_index = -1;
981 td->mt_report_id = -1;
982 td->pen_report_id = -1;
983 hid_set_drvdata(hdev, td);
984
985 td->fields = kzalloc(sizeof(struct mt_fields), GFP_KERNEL);
986 if (!td->fields) {
987 dev_err(&hdev->dev, "cannot allocate multitouch fields data\n");
988 ret = -ENOMEM;
989 goto fail;
990 }
991
992 if (id->vendor == HID_ANY_ID && id->product == HID_ANY_ID)
993 td->serial_maybe = true;
994
995 ret = hid_parse(hdev);
996 if (ret != 0)
997 goto fail;
998
999 ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
1000 if (ret)
1001 goto hid_fail;
1002
1003 ret = sysfs_create_group(&hdev->dev.kobj, &mt_attribute_group);
1004
1005 mt_set_maxcontacts(hdev);
1006 mt_set_input_mode(hdev);
1007
1008 kfree(td->fields);
1009 td->fields = NULL;
1010
1011 return 0;
1012
1013 hid_fail:
1014 list_for_each_entry(hi, &hdev->inputs, list)
1015 mt_free_input_name(hi);
1016 fail:
1017 kfree(td->fields);
1018 kfree(td);
1019 return ret;
1020 }
1021
1022 #ifdef CONFIG_PM
1023 static int mt_reset_resume(struct hid_device *hdev)
1024 {
1025 mt_set_maxcontacts(hdev);
1026 mt_set_input_mode(hdev);
1027 return 0;
1028 }
1029
1030 static int mt_resume(struct hid_device *hdev)
1031 {
1032 /* Some Elan legacy devices require SET_IDLE to be set on resume.
1033 * It should be safe to send it to other devices too.
1034 * Tested on 3M, Stantum, Cypress, Zytronic, eGalax, and Elan panels. */
1035
1036 hid_hw_idle(hdev, 0, 0, HID_REQ_SET_IDLE);
1037
1038 return 0;
1039 }
1040 #endif
1041
1042 static void mt_remove(struct hid_device *hdev)
1043 {
1044 struct mt_device *td = hid_get_drvdata(hdev);
1045 struct hid_input *hi;
1046
1047 sysfs_remove_group(&hdev->dev.kobj, &mt_attribute_group);
1048 list_for_each_entry(hi, &hdev->inputs, list)
1049 mt_free_input_name(hi);
1050
1051 hid_hw_stop(hdev);
1052
1053 kfree(td);
1054 hid_set_drvdata(hdev, NULL);
1055 }
1056
1057 static const struct hid_device_id mt_devices[] = {
1058
1059 /* 3M panels */
1060 { .driver_data = MT_CLS_3M,
1061 MT_USB_DEVICE(USB_VENDOR_ID_3M,
1062 USB_DEVICE_ID_3M1968) },
1063 { .driver_data = MT_CLS_3M,
1064 MT_USB_DEVICE(USB_VENDOR_ID_3M,
1065 USB_DEVICE_ID_3M2256) },
1066 { .driver_data = MT_CLS_3M,
1067 MT_USB_DEVICE(USB_VENDOR_ID_3M,
1068 USB_DEVICE_ID_3M3266) },
1069
1070 /* ActionStar panels */
1071 { .driver_data = MT_CLS_NSMU,
1072 MT_USB_DEVICE(USB_VENDOR_ID_ACTIONSTAR,
1073 USB_DEVICE_ID_ACTIONSTAR_1011) },
1074
1075 /* Atmel panels */
1076 { .driver_data = MT_CLS_SERIAL,
1077 MT_USB_DEVICE(USB_VENDOR_ID_ATMEL,
1078 USB_DEVICE_ID_ATMEL_MULTITOUCH) },
1079 { .driver_data = MT_CLS_SERIAL,
1080 MT_USB_DEVICE(USB_VENDOR_ID_ATMEL,
1081 USB_DEVICE_ID_ATMEL_MXT_DIGITIZER) },
1082
1083 /* Baanto multitouch devices */
1084 { .driver_data = MT_CLS_NSMU,
1085 MT_USB_DEVICE(USB_VENDOR_ID_BAANTO,
1086 USB_DEVICE_ID_BAANTO_MT_190W2) },
1087 /* Cando panels */
1088 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
1089 MT_USB_DEVICE(USB_VENDOR_ID_CANDO,
1090 USB_DEVICE_ID_CANDO_MULTI_TOUCH) },
1091 { .driver_data = MT_CLS_DUAL_CONTACT_NUMBER,
1092 MT_USB_DEVICE(USB_VENDOR_ID_CANDO,
1093 USB_DEVICE_ID_CANDO_MULTI_TOUCH_10_1) },
1094 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
1095 MT_USB_DEVICE(USB_VENDOR_ID_CANDO,
1096 USB_DEVICE_ID_CANDO_MULTI_TOUCH_11_6) },
1097 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
1098 MT_USB_DEVICE(USB_VENDOR_ID_CANDO,
1099 USB_DEVICE_ID_CANDO_MULTI_TOUCH_15_6) },
1100
1101 /* Chunghwa Telecom touch panels */
1102 { .driver_data = MT_CLS_NSMU,
1103 MT_USB_DEVICE(USB_VENDOR_ID_CHUNGHWAT,
1104 USB_DEVICE_ID_CHUNGHWAT_MULTITOUCH) },
1105
1106 /* CVTouch panels */
1107 { .driver_data = MT_CLS_NSMU,
1108 MT_USB_DEVICE(USB_VENDOR_ID_CVTOUCH,
1109 USB_DEVICE_ID_CVTOUCH_SCREEN) },
1110
1111 /* Cypress panel */
1112 { .driver_data = MT_CLS_CYPRESS,
1113 HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS,
1114 USB_DEVICE_ID_CYPRESS_TRUETOUCH) },
1115
1116 /* eGalax devices (resistive) */
1117 { .driver_data = MT_CLS_EGALAX,
1118 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1119 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_480D) },
1120 { .driver_data = MT_CLS_EGALAX,
1121 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1122 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_480E) },
1123
1124 /* eGalax devices (capacitive) */
1125 { .driver_data = MT_CLS_EGALAX,
1126 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1127 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_720C) },
1128 { .driver_data = MT_CLS_EGALAX_SERIAL,
1129 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1130 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7207) },
1131 { .driver_data = MT_CLS_EGALAX_SERIAL,
1132 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1133 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_725E) },
1134 { .driver_data = MT_CLS_EGALAX_SERIAL,
1135 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1136 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7224) },
1137 { .driver_data = MT_CLS_EGALAX_SERIAL,
1138 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1139 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_722A) },
1140 { .driver_data = MT_CLS_EGALAX,
1141 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1142 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_726B) },
1143 { .driver_data = MT_CLS_EGALAX_SERIAL,
1144 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1145 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7262) },
1146 { .driver_data = MT_CLS_EGALAX,
1147 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1148 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72A1) },
1149 { .driver_data = MT_CLS_EGALAX_SERIAL,
1150 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1151 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72AA) },
1152 { .driver_data = MT_CLS_EGALAX,
1153 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1154 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72FA) },
1155 { .driver_data = MT_CLS_EGALAX,
1156 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1157 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7302) },
1158 { .driver_data = MT_CLS_EGALAX_SERIAL,
1159 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1160 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7349) },
1161 { .driver_data = MT_CLS_EGALAX_SERIAL,
1162 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1163 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_73F7) },
1164 { .driver_data = MT_CLS_EGALAX_SERIAL,
1165 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1166 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_A001) },
1167 { .driver_data = MT_CLS_EGALAX,
1168 HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
1169 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7224) },
1170 { .driver_data = MT_CLS_EGALAX,
1171 HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
1172 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72D0) },
1173 { .driver_data = MT_CLS_EGALAX,
1174 HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
1175 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72C4) },
1176
1177 /* Elo TouchSystems IntelliTouch Plus panel */
1178 { .driver_data = MT_CLS_DUAL_CONTACT_ID,
1179 MT_USB_DEVICE(USB_VENDOR_ID_ELO,
1180 USB_DEVICE_ID_ELO_TS2515) },
1181
1182 /* Flatfrog Panels */
1183 { .driver_data = MT_CLS_FLATFROG,
1184 MT_USB_DEVICE(USB_VENDOR_ID_FLATFROG,
1185 USB_DEVICE_ID_MULTITOUCH_3200) },
1186
1187 /* GeneralTouch panel */
1188 { .driver_data = MT_CLS_GENERALTOUCH_TWOFINGERS,
1189 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
1190 USB_DEVICE_ID_GENERAL_TOUCH_WIN7_TWOFINGERS) },
1191 { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
1192 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
1193 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PWT_TENFINGERS) },
1194 { .driver_data = MT_CLS_GENERALTOUCH_TWOFINGERS,
1195 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
1196 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_0101) },
1197 { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
1198 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
1199 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_0102) },
1200 { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
1201 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
1202 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_0106) },
1203 { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
1204 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
1205 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_010A) },
1206 { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
1207 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
1208 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_E100) },
1209
1210 /* Gametel game controller */
1211 { .driver_data = MT_CLS_NSMU,
1212 MT_BT_DEVICE(USB_VENDOR_ID_FRUCTEL,
1213 USB_DEVICE_ID_GAMETEL_MT_MODE) },
1214
1215 /* GoodTouch panels */
1216 { .driver_data = MT_CLS_NSMU,
1217 MT_USB_DEVICE(USB_VENDOR_ID_GOODTOUCH,
1218 USB_DEVICE_ID_GOODTOUCH_000f) },
1219
1220 /* Hanvon panels */
1221 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID,
1222 MT_USB_DEVICE(USB_VENDOR_ID_HANVON_ALT,
1223 USB_DEVICE_ID_HANVON_ALT_MULTITOUCH) },
1224
1225 /* Ideacom panel */
1226 { .driver_data = MT_CLS_SERIAL,
1227 MT_USB_DEVICE(USB_VENDOR_ID_IDEACOM,
1228 USB_DEVICE_ID_IDEACOM_IDC6650) },
1229 { .driver_data = MT_CLS_SERIAL,
1230 MT_USB_DEVICE(USB_VENDOR_ID_IDEACOM,
1231 USB_DEVICE_ID_IDEACOM_IDC6651) },
1232
1233 /* Ilitek dual touch panel */
1234 { .driver_data = MT_CLS_NSMU,
1235 MT_USB_DEVICE(USB_VENDOR_ID_ILITEK,
1236 USB_DEVICE_ID_ILITEK_MULTITOUCH) },
1237
1238 /* IRTOUCH panels */
1239 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID,
1240 MT_USB_DEVICE(USB_VENDOR_ID_IRTOUCHSYSTEMS,
1241 USB_DEVICE_ID_IRTOUCH_INFRARED_USB) },
1242
1243 /* LG Display panels */
1244 { .driver_data = MT_CLS_DEFAULT,
1245 MT_USB_DEVICE(USB_VENDOR_ID_LG,
1246 USB_DEVICE_ID_LG_MULTITOUCH) },
1247
1248 /* Lumio panels */
1249 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
1250 MT_USB_DEVICE(USB_VENDOR_ID_LUMIO,
1251 USB_DEVICE_ID_CRYSTALTOUCH) },
1252 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
1253 MT_USB_DEVICE(USB_VENDOR_ID_LUMIO,
1254 USB_DEVICE_ID_CRYSTALTOUCH_DUAL) },
1255
1256 /* MosArt panels */
1257 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
1258 MT_USB_DEVICE(USB_VENDOR_ID_ASUS,
1259 USB_DEVICE_ID_ASUS_T91MT)},
1260 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
1261 MT_USB_DEVICE(USB_VENDOR_ID_ASUS,
1262 USB_DEVICE_ID_ASUSTEK_MULTITOUCH_YFO) },
1263 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
1264 MT_USB_DEVICE(USB_VENDOR_ID_TURBOX,
1265 USB_DEVICE_ID_TURBOX_TOUCHSCREEN_MOSART) },
1266
1267 /* Nexio panels */
1268 { .driver_data = MT_CLS_DEFAULT,
1269 MT_USB_DEVICE(USB_VENDOR_ID_NEXIO,
1270 USB_DEVICE_ID_NEXIO_MULTITOUCH_420)},
1271
1272 /* Panasonic panels */
1273 { .driver_data = MT_CLS_PANASONIC,
1274 MT_USB_DEVICE(USB_VENDOR_ID_PANASONIC,
1275 USB_DEVICE_ID_PANABOARD_UBT780) },
1276 { .driver_data = MT_CLS_PANASONIC,
1277 MT_USB_DEVICE(USB_VENDOR_ID_PANASONIC,
1278 USB_DEVICE_ID_PANABOARD_UBT880) },
1279
1280 /* Novatek Panel */
1281 { .driver_data = MT_CLS_NSMU,
1282 MT_USB_DEVICE(USB_VENDOR_ID_NOVATEK,
1283 USB_DEVICE_ID_NOVATEK_PCT) },
1284
1285 /* PenMount panels */
1286 { .driver_data = MT_CLS_CONFIDENCE,
1287 MT_USB_DEVICE(USB_VENDOR_ID_PENMOUNT,
1288 USB_DEVICE_ID_PENMOUNT_PCI) },
1289
1290 /* PixArt optical touch screen */
1291 { .driver_data = MT_CLS_INRANGE_CONTACTNUMBER,
1292 MT_USB_DEVICE(USB_VENDOR_ID_PIXART,
1293 USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN) },
1294 { .driver_data = MT_CLS_INRANGE_CONTACTNUMBER,
1295 MT_USB_DEVICE(USB_VENDOR_ID_PIXART,
1296 USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN1) },
1297 { .driver_data = MT_CLS_INRANGE_CONTACTNUMBER,
1298 MT_USB_DEVICE(USB_VENDOR_ID_PIXART,
1299 USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN2) },
1300
1301 /* PixCir-based panels */
1302 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID,
1303 MT_USB_DEVICE(USB_VENDOR_ID_HANVON,
1304 USB_DEVICE_ID_HANVON_MULTITOUCH) },
1305 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID,
1306 MT_USB_DEVICE(USB_VENDOR_ID_CANDO,
1307 USB_DEVICE_ID_CANDO_PIXCIR_MULTI_TOUCH) },
1308
1309 /* Quanta-based panels */
1310 { .driver_data = MT_CLS_CONFIDENCE_CONTACT_ID,
1311 MT_USB_DEVICE(USB_VENDOR_ID_QUANTA,
1312 USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH) },
1313 { .driver_data = MT_CLS_CONFIDENCE_CONTACT_ID,
1314 MT_USB_DEVICE(USB_VENDOR_ID_QUANTA,
1315 USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3001) },
1316 { .driver_data = MT_CLS_CONFIDENCE_CONTACT_ID,
1317 MT_USB_DEVICE(USB_VENDOR_ID_QUANTA,
1318 USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3008) },
1319
1320 /* SiS panels */
1321 { .driver_data = MT_CLS_DEFAULT,
1322 HID_USB_DEVICE(USB_VENDOR_ID_SIS2_TOUCH,
1323 USB_DEVICE_ID_SIS9200_TOUCH) },
1324 { .driver_data = MT_CLS_DEFAULT,
1325 HID_USB_DEVICE(USB_VENDOR_ID_SIS2_TOUCH,
1326 USB_DEVICE_ID_SIS817_TOUCH) },
1327
1328 /* Stantum panels */
1329 { .driver_data = MT_CLS_CONFIDENCE,
1330 MT_USB_DEVICE(USB_VENDOR_ID_STANTUM,
1331 USB_DEVICE_ID_MTP)},
1332 { .driver_data = MT_CLS_CONFIDENCE,
1333 MT_USB_DEVICE(USB_VENDOR_ID_STANTUM_STM,
1334 USB_DEVICE_ID_MTP_STM)},
1335 { .driver_data = MT_CLS_DEFAULT,
1336 MT_USB_DEVICE(USB_VENDOR_ID_STANTUM_SITRONIX,
1337 USB_DEVICE_ID_MTP_SITRONIX)},
1338
1339 /* TopSeed panels */
1340 { .driver_data = MT_CLS_TOPSEED,
1341 MT_USB_DEVICE(USB_VENDOR_ID_TOPSEED2,
1342 USB_DEVICE_ID_TOPSEED2_PERIPAD_701) },
1343
1344 /* Touch International panels */
1345 { .driver_data = MT_CLS_NSMU,
1346 MT_USB_DEVICE(USB_VENDOR_ID_TOUCH_INTL,
1347 USB_DEVICE_ID_TOUCH_INTL_MULTI_TOUCH) },
1348
1349 /* Unitec panels */
1350 { .driver_data = MT_CLS_NSMU,
1351 MT_USB_DEVICE(USB_VENDOR_ID_UNITEC,
1352 USB_DEVICE_ID_UNITEC_USB_TOUCH_0709) },
1353 { .driver_data = MT_CLS_NSMU,
1354 MT_USB_DEVICE(USB_VENDOR_ID_UNITEC,
1355 USB_DEVICE_ID_UNITEC_USB_TOUCH_0A19) },
1356
1357 /* Wistron panels */
1358 { .driver_data = MT_CLS_NSMU,
1359 MT_USB_DEVICE(USB_VENDOR_ID_WISTRON,
1360 USB_DEVICE_ID_WISTRON_OPTICAL_TOUCH) },
1361
1362 /* XAT */
1363 { .driver_data = MT_CLS_NSMU,
1364 MT_USB_DEVICE(USB_VENDOR_ID_XAT,
1365 USB_DEVICE_ID_XAT_CSR) },
1366
1367 /* Xiroku */
1368 { .driver_data = MT_CLS_NSMU,
1369 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1370 USB_DEVICE_ID_XIROKU_SPX) },
1371 { .driver_data = MT_CLS_NSMU,
1372 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1373 USB_DEVICE_ID_XIROKU_MPX) },
1374 { .driver_data = MT_CLS_NSMU,
1375 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1376 USB_DEVICE_ID_XIROKU_CSR) },
1377 { .driver_data = MT_CLS_NSMU,
1378 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1379 USB_DEVICE_ID_XIROKU_SPX1) },
1380 { .driver_data = MT_CLS_NSMU,
1381 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1382 USB_DEVICE_ID_XIROKU_MPX1) },
1383 { .driver_data = MT_CLS_NSMU,
1384 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1385 USB_DEVICE_ID_XIROKU_CSR1) },
1386 { .driver_data = MT_CLS_NSMU,
1387 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1388 USB_DEVICE_ID_XIROKU_SPX2) },
1389 { .driver_data = MT_CLS_NSMU,
1390 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1391 USB_DEVICE_ID_XIROKU_MPX2) },
1392 { .driver_data = MT_CLS_NSMU,
1393 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1394 USB_DEVICE_ID_XIROKU_CSR2) },
1395
1396 /* Zytronic panels */
1397 { .driver_data = MT_CLS_SERIAL,
1398 MT_USB_DEVICE(USB_VENDOR_ID_ZYTRONIC,
1399 USB_DEVICE_ID_ZYTRONIC_ZXY100) },
1400
1401 /* Generic MT device */
1402 { HID_DEVICE(HID_BUS_ANY, HID_GROUP_MULTITOUCH, HID_ANY_ID, HID_ANY_ID) },
1403 { }
1404 };
1405 MODULE_DEVICE_TABLE(hid, mt_devices);
1406
1407 static const struct hid_usage_id mt_grabbed_usages[] = {
1408 { HID_ANY_ID, HID_ANY_ID, HID_ANY_ID },
1409 { HID_ANY_ID - 1, HID_ANY_ID - 1, HID_ANY_ID - 1}
1410 };
1411
1412 static struct hid_driver mt_driver = {
1413 .name = "hid-multitouch",
1414 .id_table = mt_devices,
1415 .probe = mt_probe,
1416 .remove = mt_remove,
1417 .input_mapping = mt_input_mapping,
1418 .input_mapped = mt_input_mapped,
1419 .input_configured = mt_input_configured,
1420 .feature_mapping = mt_feature_mapping,
1421 .usage_table = mt_grabbed_usages,
1422 .event = mt_event,
1423 .report = mt_report,
1424 #ifdef CONFIG_PM
1425 .reset_resume = mt_reset_resume,
1426 .resume = mt_resume,
1427 #endif
1428 };
1429 module_hid_driver(mt_driver);
kernel source for telekom puls (alcatel/mediatek)