?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
xenbus_client.c: correct exit path for xenbus_map_ring_valloc_hvm
[linux/fpc-iii.git] / drivers / hid / hid-multitouch.c
blobdc3ae5c56f563bf7735ba4c6ee4bffa0f24ccdd0
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 __s8 inputmode; /* InputMode HID feature, -1 if non-existent */
105 __s8 inputmode_index; /* InputMode HID feature index in the report */
106 __s8 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_CONTACTNUMBER,
248 .maxcontacts = 2
249 },
250 { .name = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
251 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP |
252 MT_QUIRK_SLOT_IS_CONTACTNUMBER
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
268 if (hi->input->name != hdev->name)
269 kfree(hi->input->name);
270 }
271
272 static ssize_t mt_show_quirks(struct device *dev,
273 struct device_attribute *attr,
274 char *buf)
275 {
276 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
277 struct mt_device *td = hid_get_drvdata(hdev);
278
279 return sprintf(buf, "%u\n", td->mtclass.quirks);
280 }
281
282 static ssize_t mt_set_quirks(struct device *dev,
283 struct device_attribute *attr,
284 const char *buf, size_t count)
285 {
286 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
287 struct mt_device *td = hid_get_drvdata(hdev);
288
289 unsigned long val;
290
291 if (kstrtoul(buf, 0, &val))
292 return -EINVAL;
293
294 td->mtclass.quirks = val;
295
296 if (td->cc_index < 0)
297 td->mtclass.quirks &= ~MT_QUIRK_CONTACT_CNT_ACCURATE;
298
299 return count;
300 }
301
302 static DEVICE_ATTR(quirks, S_IWUSR | S_IRUGO, mt_show_quirks, mt_set_quirks);
303
304 static struct attribute *sysfs_attrs[] = {
305 &dev_attr_quirks.attr,
306 NULL
307 };
308
309 static struct attribute_group mt_attribute_group = {
310 .attrs = sysfs_attrs
311 };
312
313 static void mt_feature_mapping(struct hid_device *hdev,
314 struct hid_field *field, struct hid_usage *usage)
315 {
316 struct mt_device *td = hid_get_drvdata(hdev);
317 int i;
318
319 switch (usage->hid) {
320 case HID_DG_INPUTMODE:
321 td->inputmode = field->report->id;
322 td->inputmode_index = 0; /* has to be updated below */
323
324 for (i=0; i < field->maxusage; i++) {
325 if (field->usage[i].hid == usage->hid) {
326 td->inputmode_index = i;
327 break;
328 }
329 }
330
331 break;
332 case HID_DG_CONTACTMAX:
333 td->maxcontact_report_id = field->report->id;
334 td->maxcontacts = field->value[0];
335 if (!td->maxcontacts &&
336 field->logical_maximum <= MT_MAX_MAXCONTACT)
337 td->maxcontacts = field->logical_maximum;
338 if (td->mtclass.maxcontacts)
339 /* check if the maxcontacts is given by the class */
340 td->maxcontacts = td->mtclass.maxcontacts;
341
342 break;
343 case 0xff0000c5:
344 if (field->report_count == 256 && field->report_size == 8) {
345 /* Win 8 devices need special quirks */
346 __s32 *quirks = &td->mtclass.quirks;
347 *quirks |= MT_QUIRK_ALWAYS_VALID;
348 *quirks |= MT_QUIRK_IGNORE_DUPLICATES;
349 *quirks |= MT_QUIRK_HOVERING;
350 *quirks |= MT_QUIRK_CONTACT_CNT_ACCURATE;
351 *quirks &= ~MT_QUIRK_NOT_SEEN_MEANS_UP;
352 *quirks &= ~MT_QUIRK_VALID_IS_INRANGE;
353 *quirks &= ~MT_QUIRK_VALID_IS_CONFIDENCE;
354 }
355 break;
356 }
357 }
358
359 static void set_abs(struct input_dev *input, unsigned int code,
360 struct hid_field *field, int snratio)
361 {
362 int fmin = field->logical_minimum;
363 int fmax = field->logical_maximum;
364 int fuzz = snratio ? (fmax - fmin) / snratio : 0;
365 input_set_abs_params(input, code, fmin, fmax, fuzz, 0);
366 input_abs_set_res(input, code, hidinput_calc_abs_res(field, code));
367 }
368
369 static void mt_store_field(struct hid_usage *usage, struct mt_device *td,
370 struct hid_input *hi)
371 {
372 struct mt_fields *f = td->fields;
373
374 if (f->length >= HID_MAX_FIELDS)
375 return;
376
377 f->usages[f->length++] = usage->hid;
378 }
379
380 static int mt_pen_input_mapping(struct hid_device *hdev, struct hid_input *hi,
381 struct hid_field *field, struct hid_usage *usage,
382 unsigned long **bit, int *max)
383 {
384 struct mt_device *td = hid_get_drvdata(hdev);
385
386 td->pen_report_id = field->report->id;
387
388 return 0;
389 }
390
391 static int mt_pen_input_mapped(struct hid_device *hdev, struct hid_input *hi,
392 struct hid_field *field, struct hid_usage *usage,
393 unsigned long **bit, int *max)
394 {
395 return 0;
396 }
397
398 static int mt_pen_event(struct hid_device *hid, struct hid_field *field,
399 struct hid_usage *usage, __s32 value)
400 {
401 /* let hid-input handle it */
402 return 0;
403 }
404
405 static void mt_pen_report(struct hid_device *hid, struct hid_report *report)
406 {
407 struct hid_field *field = report->field[0];
408
409 input_sync(field->hidinput->input);
410 }
411
412 static void mt_pen_input_configured(struct hid_device *hdev,
413 struct hid_input *hi)
414 {
415 char *name = kzalloc(strlen(hi->input->name) + 5, GFP_KERNEL);
416 if (name) {
417 sprintf(name, "%s Pen", hi->input->name);
418 mt_free_input_name(hi);
419 hi->input->name = name;
420 }
421
422 /* force BTN_STYLUS to allow tablet matching in udev */
423 __set_bit(BTN_STYLUS, hi->input->keybit);
424 }
425
426 static int mt_touch_input_mapping(struct hid_device *hdev, struct hid_input *hi,
427 struct hid_field *field, struct hid_usage *usage,
428 unsigned long **bit, int *max)
429 {
430 struct mt_device *td = hid_get_drvdata(hdev);
431 struct mt_class *cls = &td->mtclass;
432 int code;
433 struct hid_usage *prev_usage = NULL;
434
435 if (field->application == HID_DG_TOUCHSCREEN)
436 td->mt_flags |= INPUT_MT_DIRECT;
437
438 /*
439 * Model touchscreens providing buttons as touchpads.
440 */
441 if (field->application == HID_DG_TOUCHPAD ||
442 (usage->hid & HID_USAGE_PAGE) == HID_UP_BUTTON)
443 td->mt_flags |= INPUT_MT_POINTER;
444
445 if (usage->usage_index)
446 prev_usage = &field->usage[usage->usage_index - 1];
447
448 switch (usage->hid & HID_USAGE_PAGE) {
449
450 case HID_UP_GENDESK:
451 switch (usage->hid) {
452 case HID_GD_X:
453 if (prev_usage && (prev_usage->hid == usage->hid)) {
454 hid_map_usage(hi, usage, bit, max,
455 EV_ABS, ABS_MT_TOOL_X);
456 set_abs(hi->input, ABS_MT_TOOL_X, field,
457 cls->sn_move);
458 } else {
459 hid_map_usage(hi, usage, bit, max,
460 EV_ABS, ABS_MT_POSITION_X);
461 set_abs(hi->input, ABS_MT_POSITION_X, field,
462 cls->sn_move);
463 }
464
465 mt_store_field(usage, td, hi);
466 return 1;
467 case HID_GD_Y:
468 if (prev_usage && (prev_usage->hid == usage->hid)) {
469 hid_map_usage(hi, usage, bit, max,
470 EV_ABS, ABS_MT_TOOL_Y);
471 set_abs(hi->input, ABS_MT_TOOL_Y, field,
472 cls->sn_move);
473 } else {
474 hid_map_usage(hi, usage, bit, max,
475 EV_ABS, ABS_MT_POSITION_Y);
476 set_abs(hi->input, ABS_MT_POSITION_Y, field,
477 cls->sn_move);
478 }
479
480 mt_store_field(usage, td, hi);
481 return 1;
482 }
483 return 0;
484
485 case HID_UP_DIGITIZER:
486 switch (usage->hid) {
487 case HID_DG_INRANGE:
488 if (cls->quirks & MT_QUIRK_HOVERING) {
489 hid_map_usage(hi, usage, bit, max,
490 EV_ABS, ABS_MT_DISTANCE);
491 input_set_abs_params(hi->input,
492 ABS_MT_DISTANCE, 0, 1, 0, 0);
493 }
494 mt_store_field(usage, td, hi);
495 return 1;
496 case HID_DG_CONFIDENCE:
497 mt_store_field(usage, td, hi);
498 return 1;
499 case HID_DG_TIPSWITCH:
500 hid_map_usage(hi, usage, bit, max, EV_KEY, BTN_TOUCH);
501 input_set_capability(hi->input, EV_KEY, BTN_TOUCH);
502 mt_store_field(usage, td, hi);
503 return 1;
504 case HID_DG_CONTACTID:
505 mt_store_field(usage, td, hi);
506 td->touches_by_report++;
507 td->mt_report_id = field->report->id;
508 return 1;
509 case HID_DG_WIDTH:
510 hid_map_usage(hi, usage, bit, max,
511 EV_ABS, ABS_MT_TOUCH_MAJOR);
512 if (!(cls->quirks & MT_QUIRK_NO_AREA))
513 set_abs(hi->input, ABS_MT_TOUCH_MAJOR, field,
514 cls->sn_width);
515 mt_store_field(usage, td, hi);
516 return 1;
517 case HID_DG_HEIGHT:
518 hid_map_usage(hi, usage, bit, max,
519 EV_ABS, ABS_MT_TOUCH_MINOR);
520 if (!(cls->quirks & MT_QUIRK_NO_AREA)) {
521 set_abs(hi->input, ABS_MT_TOUCH_MINOR, field,
522 cls->sn_height);
523 input_set_abs_params(hi->input,
524 ABS_MT_ORIENTATION, 0, 1, 0, 0);
525 }
526 mt_store_field(usage, td, hi);
527 return 1;
528 case HID_DG_TIPPRESSURE:
529 hid_map_usage(hi, usage, bit, max,
530 EV_ABS, ABS_MT_PRESSURE);
531 set_abs(hi->input, ABS_MT_PRESSURE, field,
532 cls->sn_pressure);
533 mt_store_field(usage, td, hi);
534 return 1;
535 case HID_DG_CONTACTCOUNT:
536 td->cc_index = field->index;
537 td->cc_value_index = usage->usage_index;
538 return 1;
539 case HID_DG_CONTACTMAX:
540 /* we don't set td->last_slot_field as contactcount and
541 * contact max are global to the report */
542 return -1;
543 case HID_DG_TOUCH:
544 /* Legacy devices use TIPSWITCH and not TOUCH.
545 * Let's just ignore this field. */
546 return -1;
547 }
548 /* let hid-input decide for the others */
549 return 0;
550
551 case HID_UP_BUTTON:
552 code = BTN_MOUSE + ((usage->hid - 1) & HID_USAGE);
553 hid_map_usage(hi, usage, bit, max, EV_KEY, code);
554 input_set_capability(hi->input, EV_KEY, code);
555 return 1;
556
557 case 0xff000000:
558 /* we do not want to map these: no input-oriented meaning */
559 return -1;
560 }
561
562 return 0;
563 }
564
565 static int mt_touch_input_mapped(struct hid_device *hdev, struct hid_input *hi,
566 struct hid_field *field, struct hid_usage *usage,
567 unsigned long **bit, int *max)
568 {
569 if (usage->type == EV_KEY || usage->type == EV_ABS)
570 set_bit(usage->type, hi->input->evbit);
571
572 return -1;
573 }
574
575 static int mt_compute_slot(struct mt_device *td, struct input_dev *input)
576 {
577 __s32 quirks = td->mtclass.quirks;
578
579 if (quirks & MT_QUIRK_SLOT_IS_CONTACTID)
580 return td->curdata.contactid;
581
582 if (quirks & MT_QUIRK_CYPRESS)
583 return cypress_compute_slot(td);
584
585 if (quirks & MT_QUIRK_SLOT_IS_CONTACTNUMBER)
586 return td->num_received;
587
588 if (quirks & MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE)
589 return td->curdata.contactid - 1;
590
591 return input_mt_get_slot_by_key(input, td->curdata.contactid);
592 }
593
594 /*
595 * this function is called when a whole contact has been processed,
596 * so that it can assign it to a slot and store the data there
597 */
598 static void mt_complete_slot(struct mt_device *td, struct input_dev *input)
599 {
600 if ((td->mtclass.quirks & MT_QUIRK_CONTACT_CNT_ACCURATE) &&
601 td->num_received >= td->num_expected)
602 return;
603
604 if (td->curvalid || (td->mtclass.quirks & MT_QUIRK_ALWAYS_VALID)) {
605 int slotnum = mt_compute_slot(td, input);
606 struct mt_slot *s = &td->curdata;
607 struct input_mt *mt = input->mt;
608
609 if (slotnum < 0 || slotnum >= td->maxcontacts)
610 return;
611
612 if ((td->mtclass.quirks & MT_QUIRK_IGNORE_DUPLICATES) && mt) {
613 struct input_mt_slot *slot = &mt->slots[slotnum];
614 if (input_mt_is_active(slot) &&
615 input_mt_is_used(mt, slot))
616 return;
617 }
618
619 input_mt_slot(input, slotnum);
620 input_mt_report_slot_state(input, MT_TOOL_FINGER,
621 s->touch_state || s->inrange_state);
622 if (s->touch_state || s->inrange_state) {
623 /* this finger is in proximity of the sensor */
624 int wide = (s->w > s->h);
625 /* divided by two to match visual scale of touch */
626 int major = max(s->w, s->h) >> 1;
627 int minor = min(s->w, s->h) >> 1;
628
629 input_event(input, EV_ABS, ABS_MT_POSITION_X, s->x);
630 input_event(input, EV_ABS, ABS_MT_POSITION_Y, s->y);
631 input_event(input, EV_ABS, ABS_MT_TOOL_X, s->cx);
632 input_event(input, EV_ABS, ABS_MT_TOOL_Y, s->cy);
633 input_event(input, EV_ABS, ABS_MT_DISTANCE,
634 !s->touch_state);
635 input_event(input, EV_ABS, ABS_MT_ORIENTATION, wide);
636 input_event(input, EV_ABS, ABS_MT_PRESSURE, s->p);
637 input_event(input, EV_ABS, ABS_MT_TOUCH_MAJOR, major);
638 input_event(input, EV_ABS, ABS_MT_TOUCH_MINOR, minor);
639 }
640 }
641
642 td->num_received++;
643 }
644
645 /*
646 * this function is called when a whole packet has been received and processed,
647 * so that it can decide what to send to the input layer.
648 */
649 static void mt_sync_frame(struct mt_device *td, struct input_dev *input)
650 {
651 input_mt_sync_frame(input);
652 input_sync(input);
653 td->num_received = 0;
654 }
655
656 static int mt_touch_event(struct hid_device *hid, struct hid_field *field,
657 struct hid_usage *usage, __s32 value)
658 {
659 /* we will handle the hidinput part later, now remains hiddev */
660 if (hid->claimed & HID_CLAIMED_HIDDEV && hid->hiddev_hid_event)
661 hid->hiddev_hid_event(hid, field, usage, value);
662
663 return 1;
664 }
665
666 static void mt_process_mt_event(struct hid_device *hid, struct hid_field *field,
667 struct hid_usage *usage, __s32 value)
668 {
669 struct mt_device *td = hid_get_drvdata(hid);
670 __s32 quirks = td->mtclass.quirks;
671 struct input_dev *input = field->hidinput->input;
672
673 if (hid->claimed & HID_CLAIMED_INPUT) {
674 switch (usage->hid) {
675 case HID_DG_INRANGE:
676 if (quirks & MT_QUIRK_VALID_IS_INRANGE)
677 td->curvalid = value;
678 if (quirks & MT_QUIRK_HOVERING)
679 td->curdata.inrange_state = value;
680 break;
681 case HID_DG_TIPSWITCH:
682 if (quirks & MT_QUIRK_NOT_SEEN_MEANS_UP)
683 td->curvalid = value;
684 td->curdata.touch_state = value;
685 break;
686 case HID_DG_CONFIDENCE:
687 if (quirks & MT_QUIRK_VALID_IS_CONFIDENCE)
688 td->curvalid = value;
689 break;
690 case HID_DG_CONTACTID:
691 td->curdata.contactid = value;
692 break;
693 case HID_DG_TIPPRESSURE:
694 td->curdata.p = value;
695 break;
696 case HID_GD_X:
697 if (usage->code == ABS_MT_TOOL_X)
698 td->curdata.cx = value;
699 else
700 td->curdata.x = value;
701 break;
702 case HID_GD_Y:
703 if (usage->code == ABS_MT_TOOL_Y)
704 td->curdata.cy = value;
705 else
706 td->curdata.y = value;
707 break;
708 case HID_DG_WIDTH:
709 td->curdata.w = value;
710 break;
711 case HID_DG_HEIGHT:
712 td->curdata.h = value;
713 break;
714 case HID_DG_CONTACTCOUNT:
715 break;
716 case HID_DG_TOUCH:
717 /* do nothing */
718 break;
719
720 default:
721 if (usage->type)
722 input_event(input, usage->type, usage->code,
723 value);
724 return;
725 }
726
727 if (usage->usage_index + 1 == field->report_count) {
728 /* we only take into account the last report. */
729 if (usage->hid == td->last_slot_field)
730 mt_complete_slot(td, field->hidinput->input);
731 }
732
733 }
734 }
735
736 static void mt_touch_report(struct hid_device *hid, struct hid_report *report)
737 {
738 struct mt_device *td = hid_get_drvdata(hid);
739 struct hid_field *field;
740 unsigned count;
741 int r, n;
742
743 /*
744 * Includes multi-packet support where subsequent
745 * packets are sent with zero contactcount.
746 */
747 if (td->cc_index >= 0) {
748 struct hid_field *field = report->field[td->cc_index];
749 int value = field->value[td->cc_value_index];
750 if (value)
751 td->num_expected = value;
752 }
753
754 for (r = 0; r < report->maxfield; r++) {
755 field = report->field[r];
756 count = field->report_count;
757
758 if (!(HID_MAIN_ITEM_VARIABLE & field->flags))
759 continue;
760
761 for (n = 0; n < count; n++)
762 mt_process_mt_event(hid, field, &field->usage[n],
763 field->value[n]);
764 }
765
766 if (td->num_received >= td->num_expected)
767 mt_sync_frame(td, report->field[0]->hidinput->input);
768 }
769
770 static void mt_touch_input_configured(struct hid_device *hdev,
771 struct hid_input *hi)
772 {
773 struct mt_device *td = hid_get_drvdata(hdev);
774 struct mt_class *cls = &td->mtclass;
775 struct input_dev *input = hi->input;
776
777 if (!td->maxcontacts)
778 td->maxcontacts = MT_DEFAULT_MAXCONTACT;
779
780 mt_post_parse(td);
781 if (td->serial_maybe)
782 mt_post_parse_default_settings(td);
783
784 if (cls->is_indirect)
785 td->mt_flags |= INPUT_MT_POINTER;
786
787 if (cls->quirks & MT_QUIRK_NOT_SEEN_MEANS_UP)
788 td->mt_flags |= INPUT_MT_DROP_UNUSED;
789
790 input_mt_init_slots(input, td->maxcontacts, td->mt_flags);
791
792 td->mt_flags = 0;
793 }
794
795 static int mt_input_mapping(struct hid_device *hdev, struct hid_input *hi,
796 struct hid_field *field, struct hid_usage *usage,
797 unsigned long **bit, int *max)
798 {
799 /* Only map fields from TouchScreen or TouchPad collections.
800 * We need to ignore fields that belong to other collections
801 * such as Mouse that might have the same GenericDesktop usages. */
802 if (field->application != HID_DG_TOUCHSCREEN &&
803 field->application != HID_DG_PEN &&
804 field->application != HID_DG_TOUCHPAD)
805 return -1;
806
807 if (field->physical == HID_DG_STYLUS)
808 return mt_pen_input_mapping(hdev, hi, field, usage, bit, max);
809
810 return mt_touch_input_mapping(hdev, hi, field, usage, bit, max);
811 }
812
813 static int mt_input_mapped(struct hid_device *hdev, struct hid_input *hi,
814 struct hid_field *field, struct hid_usage *usage,
815 unsigned long **bit, int *max)
816 {
817 if (field->physical == HID_DG_STYLUS)
818 return mt_pen_input_mapped(hdev, hi, field, usage, bit, max);
819
820 return mt_touch_input_mapped(hdev, hi, field, usage, bit, max);
821 }
822
823 static int mt_event(struct hid_device *hid, struct hid_field *field,
824 struct hid_usage *usage, __s32 value)
825 {
826 struct mt_device *td = hid_get_drvdata(hid);
827
828 if (field->report->id == td->mt_report_id)
829 return mt_touch_event(hid, field, usage, value);
830
831 if (field->report->id == td->pen_report_id)
832 return mt_pen_event(hid, field, usage, value);
833
834 /* ignore other reports */
835 return 1;
836 }
837
838 static void mt_report(struct hid_device *hid, struct hid_report *report)
839 {
840 struct mt_device *td = hid_get_drvdata(hid);
841
842 if (!(hid->claimed & HID_CLAIMED_INPUT))
843 return;
844
845 if (report->id == td->mt_report_id)
846 mt_touch_report(hid, report);
847
848 if (report->id == td->pen_report_id)
849 mt_pen_report(hid, report);
850 }
851
852 static void mt_set_input_mode(struct hid_device *hdev)
853 {
854 struct mt_device *td = hid_get_drvdata(hdev);
855 struct hid_report *r;
856 struct hid_report_enum *re;
857
858 if (td->inputmode < 0)
859 return;
860
861 re = &(hdev->report_enum[HID_FEATURE_REPORT]);
862 r = re->report_id_hash[td->inputmode];
863 if (r) {
864 r->field[0]->value[td->inputmode_index] = 0x02;
865 hid_hw_request(hdev, r, HID_REQ_SET_REPORT);
866 }
867 }
868
869 static void mt_set_maxcontacts(struct hid_device *hdev)
870 {
871 struct mt_device *td = hid_get_drvdata(hdev);
872 struct hid_report *r;
873 struct hid_report_enum *re;
874 int fieldmax, max;
875
876 if (td->maxcontact_report_id < 0)
877 return;
878
879 if (!td->mtclass.maxcontacts)
880 return;
881
882 re = &hdev->report_enum[HID_FEATURE_REPORT];
883 r = re->report_id_hash[td->maxcontact_report_id];
884 if (r) {
885 max = td->mtclass.maxcontacts;
886 fieldmax = r->field[0]->logical_maximum;
887 max = min(fieldmax, max);
888 if (r->field[0]->value[0] != max) {
889 r->field[0]->value[0] = max;
890 hid_hw_request(hdev, r, HID_REQ_SET_REPORT);
891 }
892 }
893 }
894
895 static void mt_post_parse_default_settings(struct mt_device *td)
896 {
897 __s32 quirks = td->mtclass.quirks;
898
899 /* unknown serial device needs special quirks */
900 if (td->touches_by_report == 1) {
901 quirks |= MT_QUIRK_ALWAYS_VALID;
902 quirks &= ~MT_QUIRK_NOT_SEEN_MEANS_UP;
903 quirks &= ~MT_QUIRK_VALID_IS_INRANGE;
904 quirks &= ~MT_QUIRK_VALID_IS_CONFIDENCE;
905 quirks &= ~MT_QUIRK_CONTACT_CNT_ACCURATE;
906 }
907
908 td->mtclass.quirks = quirks;
909 }
910
911 static void mt_post_parse(struct mt_device *td)
912 {
913 struct mt_fields *f = td->fields;
914 struct mt_class *cls = &td->mtclass;
915
916 if (td->touches_by_report > 0) {
917 int field_count_per_touch = f->length / td->touches_by_report;
918 td->last_slot_field = f->usages[field_count_per_touch - 1];
919 }
920
921 if (td->cc_index < 0)
922 cls->quirks &= ~MT_QUIRK_CONTACT_CNT_ACCURATE;
923 }
924
925 static void mt_input_configured(struct hid_device *hdev, struct hid_input *hi)
926 {
927 struct mt_device *td = hid_get_drvdata(hdev);
928 char *name = kstrdup(hdev->name, GFP_KERNEL);
929
930 if (name)
931 hi->input->name = name;
932
933 if (hi->report->id == td->mt_report_id)
934 mt_touch_input_configured(hdev, hi);
935
936 if (hi->report->id == td->pen_report_id)
937 mt_pen_input_configured(hdev, hi);
938 }
939
940 static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id)
941 {
942 int ret, i;
943 struct mt_device *td;
944 struct mt_class *mtclass = mt_classes; /* MT_CLS_DEFAULT */
945 struct hid_input *hi;
946
947 for (i = 0; mt_classes[i].name ; i++) {
948 if (id->driver_data == mt_classes[i].name) {
949 mtclass = &(mt_classes[i]);
950 break;
951 }
952 }
953
954 /* This allows the driver to correctly support devices
955 * that emit events over several HID messages.
956 */
957 hdev->quirks |= HID_QUIRK_NO_INPUT_SYNC;
958
959 /*
960 * This allows the driver to handle different input sensors
961 * that emits events through different reports on the same HID
962 * device.
963 */
964 hdev->quirks |= HID_QUIRK_MULTI_INPUT;
965 hdev->quirks |= HID_QUIRK_NO_EMPTY_INPUT;
966
967 td = kzalloc(sizeof(struct mt_device), GFP_KERNEL);
968 if (!td) {
969 dev_err(&hdev->dev, "cannot allocate multitouch data\n");
970 return -ENOMEM;
971 }
972 td->mtclass = *mtclass;
973 td->inputmode = -1;
974 td->maxcontact_report_id = -1;
975 td->cc_index = -1;
976 td->mt_report_id = -1;
977 td->pen_report_id = -1;
978 hid_set_drvdata(hdev, td);
979
980 td->fields = kzalloc(sizeof(struct mt_fields), GFP_KERNEL);
981 if (!td->fields) {
982 dev_err(&hdev->dev, "cannot allocate multitouch fields data\n");
983 ret = -ENOMEM;
984 goto fail;
985 }
986
987 if (id->vendor == HID_ANY_ID && id->product == HID_ANY_ID)
988 td->serial_maybe = true;
989
990 ret = hid_parse(hdev);
991 if (ret != 0)
992 goto fail;
993
994 ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
995 if (ret)
996 goto hid_fail;
997
998 ret = sysfs_create_group(&hdev->dev.kobj, &mt_attribute_group);
999
1000 mt_set_maxcontacts(hdev);
1001 mt_set_input_mode(hdev);
1002
1003 kfree(td->fields);
1004 td->fields = NULL;
1005
1006 return 0;
1007
1008 hid_fail:
1009 list_for_each_entry(hi, &hdev->inputs, list)
1010 mt_free_input_name(hi);
1011 fail:
1012 kfree(td->fields);
1013 kfree(td);
1014 return ret;
1015 }
1016
1017 #ifdef CONFIG_PM
1018 static int mt_reset_resume(struct hid_device *hdev)
1019 {
1020 mt_set_maxcontacts(hdev);
1021 mt_set_input_mode(hdev);
1022 return 0;
1023 }
1024
1025 static int mt_resume(struct hid_device *hdev)
1026 {
1027 /* Some Elan legacy devices require SET_IDLE to be set on resume.
1028 * It should be safe to send it to other devices too.
1029 * Tested on 3M, Stantum, Cypress, Zytronic, eGalax, and Elan panels. */
1030
1031 hid_hw_idle(hdev, 0, 0, HID_REQ_SET_IDLE);
1032
1033 return 0;
1034 }
1035 #endif
1036
1037 static void mt_remove(struct hid_device *hdev)
1038 {
1039 struct mt_device *td = hid_get_drvdata(hdev);
1040 struct hid_input *hi;
1041
1042 sysfs_remove_group(&hdev->dev.kobj, &mt_attribute_group);
1043 hid_hw_stop(hdev);
1044
1045 list_for_each_entry(hi, &hdev->inputs, list)
1046 mt_free_input_name(hi);
1047
1048 kfree(td);
1049 hid_set_drvdata(hdev, NULL);
1050 }
1051
1052 static const struct hid_device_id mt_devices[] = {
1053
1054 /* 3M panels */
1055 { .driver_data = MT_CLS_3M,
1056 MT_USB_DEVICE(USB_VENDOR_ID_3M,
1057 USB_DEVICE_ID_3M1968) },
1058 { .driver_data = MT_CLS_3M,
1059 MT_USB_DEVICE(USB_VENDOR_ID_3M,
1060 USB_DEVICE_ID_3M2256) },
1061 { .driver_data = MT_CLS_3M,
1062 MT_USB_DEVICE(USB_VENDOR_ID_3M,
1063 USB_DEVICE_ID_3M3266) },
1064
1065 /* ActionStar panels */
1066 { .driver_data = MT_CLS_NSMU,
1067 MT_USB_DEVICE(USB_VENDOR_ID_ACTIONSTAR,
1068 USB_DEVICE_ID_ACTIONSTAR_1011) },
1069
1070 /* Atmel panels */
1071 { .driver_data = MT_CLS_SERIAL,
1072 MT_USB_DEVICE(USB_VENDOR_ID_ATMEL,
1073 USB_DEVICE_ID_ATMEL_MULTITOUCH) },
1074 { .driver_data = MT_CLS_SERIAL,
1075 MT_USB_DEVICE(USB_VENDOR_ID_ATMEL,
1076 USB_DEVICE_ID_ATMEL_MXT_DIGITIZER) },
1077
1078 /* Baanto multitouch devices */
1079 { .driver_data = MT_CLS_NSMU,
1080 MT_USB_DEVICE(USB_VENDOR_ID_BAANTO,
1081 USB_DEVICE_ID_BAANTO_MT_190W2) },
1082 /* Cando panels */
1083 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
1084 MT_USB_DEVICE(USB_VENDOR_ID_CANDO,
1085 USB_DEVICE_ID_CANDO_MULTI_TOUCH) },
1086 { .driver_data = MT_CLS_DUAL_CONTACT_NUMBER,
1087 MT_USB_DEVICE(USB_VENDOR_ID_CANDO,
1088 USB_DEVICE_ID_CANDO_MULTI_TOUCH_10_1) },
1089 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
1090 MT_USB_DEVICE(USB_VENDOR_ID_CANDO,
1091 USB_DEVICE_ID_CANDO_MULTI_TOUCH_11_6) },
1092 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
1093 MT_USB_DEVICE(USB_VENDOR_ID_CANDO,
1094 USB_DEVICE_ID_CANDO_MULTI_TOUCH_15_6) },
1095
1096 /* Chunghwa Telecom touch panels */
1097 { .driver_data = MT_CLS_NSMU,
1098 MT_USB_DEVICE(USB_VENDOR_ID_CHUNGHWAT,
1099 USB_DEVICE_ID_CHUNGHWAT_MULTITOUCH) },
1100
1101 /* CVTouch panels */
1102 { .driver_data = MT_CLS_NSMU,
1103 MT_USB_DEVICE(USB_VENDOR_ID_CVTOUCH,
1104 USB_DEVICE_ID_CVTOUCH_SCREEN) },
1105
1106 /* Cypress panel */
1107 { .driver_data = MT_CLS_CYPRESS,
1108 HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS,
1109 USB_DEVICE_ID_CYPRESS_TRUETOUCH) },
1110
1111 /* eGalax devices (resistive) */
1112 { .driver_data = MT_CLS_EGALAX,
1113 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1114 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_480D) },
1115 { .driver_data = MT_CLS_EGALAX,
1116 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1117 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_480E) },
1118
1119 /* eGalax devices (capacitive) */
1120 { .driver_data = MT_CLS_EGALAX,
1121 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1122 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_720C) },
1123 { .driver_data = MT_CLS_EGALAX_SERIAL,
1124 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1125 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7207) },
1126 { .driver_data = MT_CLS_EGALAX_SERIAL,
1127 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1128 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_725E) },
1129 { .driver_data = MT_CLS_EGALAX_SERIAL,
1130 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1131 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7224) },
1132 { .driver_data = MT_CLS_EGALAX_SERIAL,
1133 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1134 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_722A) },
1135 { .driver_data = MT_CLS_EGALAX,
1136 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1137 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_726B) },
1138 { .driver_data = MT_CLS_EGALAX_SERIAL,
1139 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1140 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7262) },
1141 { .driver_data = MT_CLS_EGALAX,
1142 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1143 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72A1) },
1144 { .driver_data = MT_CLS_EGALAX_SERIAL,
1145 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1146 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72AA) },
1147 { .driver_data = MT_CLS_EGALAX,
1148 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1149 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72FA) },
1150 { .driver_data = MT_CLS_EGALAX,
1151 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1152 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7302) },
1153 { .driver_data = MT_CLS_EGALAX_SERIAL,
1154 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1155 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7349) },
1156 { .driver_data = MT_CLS_EGALAX_SERIAL,
1157 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1158 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_73F7) },
1159 { .driver_data = MT_CLS_EGALAX_SERIAL,
1160 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1161 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_A001) },
1162 { .driver_data = MT_CLS_EGALAX,
1163 HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
1164 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7224) },
1165 { .driver_data = MT_CLS_EGALAX,
1166 HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
1167 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72D0) },
1168 { .driver_data = MT_CLS_EGALAX,
1169 HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
1170 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72C4) },
1171
1172 /* Elo TouchSystems IntelliTouch Plus panel */
1173 { .driver_data = MT_CLS_DUAL_CONTACT_ID,
1174 MT_USB_DEVICE(USB_VENDOR_ID_ELO,
1175 USB_DEVICE_ID_ELO_TS2515) },
1176
1177 /* Flatfrog Panels */
1178 { .driver_data = MT_CLS_FLATFROG,
1179 MT_USB_DEVICE(USB_VENDOR_ID_FLATFROG,
1180 USB_DEVICE_ID_MULTITOUCH_3200) },
1181
1182 /* GeneralTouch panel */
1183 { .driver_data = MT_CLS_GENERALTOUCH_TWOFINGERS,
1184 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
1185 USB_DEVICE_ID_GENERAL_TOUCH_WIN7_TWOFINGERS) },
1186 { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
1187 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
1188 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PWT_TENFINGERS) },
1189
1190 /* Gametel game controller */
1191 { .driver_data = MT_CLS_NSMU,
1192 MT_BT_DEVICE(USB_VENDOR_ID_FRUCTEL,
1193 USB_DEVICE_ID_GAMETEL_MT_MODE) },
1194
1195 /* GoodTouch panels */
1196 { .driver_data = MT_CLS_NSMU,
1197 MT_USB_DEVICE(USB_VENDOR_ID_GOODTOUCH,
1198 USB_DEVICE_ID_GOODTOUCH_000f) },
1199
1200 /* Hanvon panels */
1201 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID,
1202 MT_USB_DEVICE(USB_VENDOR_ID_HANVON_ALT,
1203 USB_DEVICE_ID_HANVON_ALT_MULTITOUCH) },
1204
1205 /* Ideacom panel */
1206 { .driver_data = MT_CLS_SERIAL,
1207 MT_USB_DEVICE(USB_VENDOR_ID_IDEACOM,
1208 USB_DEVICE_ID_IDEACOM_IDC6650) },
1209 { .driver_data = MT_CLS_SERIAL,
1210 MT_USB_DEVICE(USB_VENDOR_ID_IDEACOM,
1211 USB_DEVICE_ID_IDEACOM_IDC6651) },
1212
1213 /* Ilitek dual touch panel */
1214 { .driver_data = MT_CLS_NSMU,
1215 MT_USB_DEVICE(USB_VENDOR_ID_ILITEK,
1216 USB_DEVICE_ID_ILITEK_MULTITOUCH) },
1217
1218 /* IRTOUCH panels */
1219 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID,
1220 MT_USB_DEVICE(USB_VENDOR_ID_IRTOUCHSYSTEMS,
1221 USB_DEVICE_ID_IRTOUCH_INFRARED_USB) },
1222
1223 /* LG Display panels */
1224 { .driver_data = MT_CLS_DEFAULT,
1225 MT_USB_DEVICE(USB_VENDOR_ID_LG,
1226 USB_DEVICE_ID_LG_MULTITOUCH) },
1227
1228 /* Lumio panels */
1229 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
1230 MT_USB_DEVICE(USB_VENDOR_ID_LUMIO,
1231 USB_DEVICE_ID_CRYSTALTOUCH) },
1232 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
1233 MT_USB_DEVICE(USB_VENDOR_ID_LUMIO,
1234 USB_DEVICE_ID_CRYSTALTOUCH_DUAL) },
1235
1236 /* MosArt panels */
1237 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
1238 MT_USB_DEVICE(USB_VENDOR_ID_ASUS,
1239 USB_DEVICE_ID_ASUS_T91MT)},
1240 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
1241 MT_USB_DEVICE(USB_VENDOR_ID_ASUS,
1242 USB_DEVICE_ID_ASUSTEK_MULTITOUCH_YFO) },
1243 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
1244 MT_USB_DEVICE(USB_VENDOR_ID_TURBOX,
1245 USB_DEVICE_ID_TURBOX_TOUCHSCREEN_MOSART) },
1246
1247 /* Nexio panels */
1248 { .driver_data = MT_CLS_DEFAULT,
1249 MT_USB_DEVICE(USB_VENDOR_ID_NEXIO,
1250 USB_DEVICE_ID_NEXIO_MULTITOUCH_420)},
1251
1252 /* Panasonic panels */
1253 { .driver_data = MT_CLS_PANASONIC,
1254 MT_USB_DEVICE(USB_VENDOR_ID_PANASONIC,
1255 USB_DEVICE_ID_PANABOARD_UBT780) },
1256 { .driver_data = MT_CLS_PANASONIC,
1257 MT_USB_DEVICE(USB_VENDOR_ID_PANASONIC,
1258 USB_DEVICE_ID_PANABOARD_UBT880) },
1259
1260 /* Novatek Panel */
1261 { .driver_data = MT_CLS_NSMU,
1262 MT_USB_DEVICE(USB_VENDOR_ID_NOVATEK,
1263 USB_DEVICE_ID_NOVATEK_PCT) },
1264
1265 /* PenMount panels */
1266 { .driver_data = MT_CLS_CONFIDENCE,
1267 MT_USB_DEVICE(USB_VENDOR_ID_PENMOUNT,
1268 USB_DEVICE_ID_PENMOUNT_PCI) },
1269
1270 /* PixArt optical touch screen */
1271 { .driver_data = MT_CLS_INRANGE_CONTACTNUMBER,
1272 MT_USB_DEVICE(USB_VENDOR_ID_PIXART,
1273 USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN) },
1274 { .driver_data = MT_CLS_INRANGE_CONTACTNUMBER,
1275 MT_USB_DEVICE(USB_VENDOR_ID_PIXART,
1276 USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN1) },
1277 { .driver_data = MT_CLS_INRANGE_CONTACTNUMBER,
1278 MT_USB_DEVICE(USB_VENDOR_ID_PIXART,
1279 USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN2) },
1280
1281 /* PixCir-based panels */
1282 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID,
1283 MT_USB_DEVICE(USB_VENDOR_ID_HANVON,
1284 USB_DEVICE_ID_HANVON_MULTITOUCH) },
1285 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID,
1286 MT_USB_DEVICE(USB_VENDOR_ID_CANDO,
1287 USB_DEVICE_ID_CANDO_PIXCIR_MULTI_TOUCH) },
1288
1289 /* Quanta-based panels */
1290 { .driver_data = MT_CLS_CONFIDENCE_CONTACT_ID,
1291 MT_USB_DEVICE(USB_VENDOR_ID_QUANTA,
1292 USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH) },
1293 { .driver_data = MT_CLS_CONFIDENCE_CONTACT_ID,
1294 MT_USB_DEVICE(USB_VENDOR_ID_QUANTA,
1295 USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3001) },
1296 { .driver_data = MT_CLS_CONFIDENCE_CONTACT_ID,
1297 MT_USB_DEVICE(USB_VENDOR_ID_QUANTA,
1298 USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3008) },
1299
1300 /* Stantum panels */
1301 { .driver_data = MT_CLS_CONFIDENCE,
1302 MT_USB_DEVICE(USB_VENDOR_ID_STANTUM,
1303 USB_DEVICE_ID_MTP)},
1304 { .driver_data = MT_CLS_CONFIDENCE,
1305 MT_USB_DEVICE(USB_VENDOR_ID_STANTUM_STM,
1306 USB_DEVICE_ID_MTP_STM)},
1307 { .driver_data = MT_CLS_DEFAULT,
1308 MT_USB_DEVICE(USB_VENDOR_ID_STANTUM_SITRONIX,
1309 USB_DEVICE_ID_MTP_SITRONIX)},
1310
1311 /* TopSeed panels */
1312 { .driver_data = MT_CLS_TOPSEED,
1313 MT_USB_DEVICE(USB_VENDOR_ID_TOPSEED2,
1314 USB_DEVICE_ID_TOPSEED2_PERIPAD_701) },
1315
1316 /* Touch International panels */
1317 { .driver_data = MT_CLS_NSMU,
1318 MT_USB_DEVICE(USB_VENDOR_ID_TOUCH_INTL,
1319 USB_DEVICE_ID_TOUCH_INTL_MULTI_TOUCH) },
1320
1321 /* Unitec panels */
1322 { .driver_data = MT_CLS_NSMU,
1323 MT_USB_DEVICE(USB_VENDOR_ID_UNITEC,
1324 USB_DEVICE_ID_UNITEC_USB_TOUCH_0709) },
1325 { .driver_data = MT_CLS_NSMU,
1326 MT_USB_DEVICE(USB_VENDOR_ID_UNITEC,
1327 USB_DEVICE_ID_UNITEC_USB_TOUCH_0A19) },
1328 /* XAT */
1329 { .driver_data = MT_CLS_NSMU,
1330 MT_USB_DEVICE(USB_VENDOR_ID_XAT,
1331 USB_DEVICE_ID_XAT_CSR) },
1332
1333 /* Xiroku */
1334 { .driver_data = MT_CLS_NSMU,
1335 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1336 USB_DEVICE_ID_XIROKU_SPX) },
1337 { .driver_data = MT_CLS_NSMU,
1338 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1339 USB_DEVICE_ID_XIROKU_MPX) },
1340 { .driver_data = MT_CLS_NSMU,
1341 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1342 USB_DEVICE_ID_XIROKU_CSR) },
1343 { .driver_data = MT_CLS_NSMU,
1344 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1345 USB_DEVICE_ID_XIROKU_SPX1) },
1346 { .driver_data = MT_CLS_NSMU,
1347 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1348 USB_DEVICE_ID_XIROKU_MPX1) },
1349 { .driver_data = MT_CLS_NSMU,
1350 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1351 USB_DEVICE_ID_XIROKU_CSR1) },
1352 { .driver_data = MT_CLS_NSMU,
1353 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1354 USB_DEVICE_ID_XIROKU_SPX2) },
1355 { .driver_data = MT_CLS_NSMU,
1356 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1357 USB_DEVICE_ID_XIROKU_MPX2) },
1358 { .driver_data = MT_CLS_NSMU,
1359 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1360 USB_DEVICE_ID_XIROKU_CSR2) },
1361
1362 /* Zytronic panels */
1363 { .driver_data = MT_CLS_SERIAL,
1364 MT_USB_DEVICE(USB_VENDOR_ID_ZYTRONIC,
1365 USB_DEVICE_ID_ZYTRONIC_ZXY100) },
1366
1367 /* Generic MT device */
1368 { HID_DEVICE(HID_BUS_ANY, HID_GROUP_MULTITOUCH, HID_ANY_ID, HID_ANY_ID) },
1369 { }
1370 };
1371 MODULE_DEVICE_TABLE(hid, mt_devices);
1372
1373 static const struct hid_usage_id mt_grabbed_usages[] = {
1374 { HID_ANY_ID, HID_ANY_ID, HID_ANY_ID },
1375 { HID_ANY_ID - 1, HID_ANY_ID - 1, HID_ANY_ID - 1}
1376 };
1377
1378 static struct hid_driver mt_driver = {
1379 .name = "hid-multitouch",
1380 .id_table = mt_devices,
1381 .probe = mt_probe,
1382 .remove = mt_remove,
1383 .input_mapping = mt_input_mapping,
1384 .input_mapped = mt_input_mapped,
1385 .input_configured = mt_input_configured,
1386 .feature_mapping = mt_feature_mapping,
1387 .usage_table = mt_grabbed_usages,
1388 .event = mt_event,
1389 .report = mt_report,
1390 #ifdef CONFIG_PM
1391 .reset_resume = mt_reset_resume,
1392 .resume = mt_resume,
1393 #endif
1394 };
1395 module_hid_driver(mt_driver);
Linux with added FPC-III support