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Linux 3.11-rc2
[linux-2.6.git] / drivers / hid / hid-multitouch.c
blobcb0e361d7a4be8e5e790f9ab250ffbfd17c52fe7
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 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 int i;
321
322 switch (usage->hid) {
323 case HID_DG_INPUTMODE:
324 td->inputmode = field->report->id;
325 td->inputmode_index = 0; /* has to be updated below */
326
327 for (i=0; i < field->maxusage; i++) {
328 if (field->usage[i].hid == usage->hid) {
329 td->inputmode_index = i;
330 break;
331 }
332 }
333
334 break;
335 case HID_DG_CONTACTMAX:
336 td->maxcontact_report_id = field->report->id;
337 td->maxcontacts = field->value[0];
338 if (!td->maxcontacts &&
339 field->logical_maximum <= MT_MAX_MAXCONTACT)
340 td->maxcontacts = field->logical_maximum;
341 if (td->mtclass.maxcontacts)
342 /* check if the maxcontacts is given by the class */
343 td->maxcontacts = td->mtclass.maxcontacts;
344
345 break;
346 case 0xff0000c5:
347 if (field->report_count == 256 && field->report_size == 8) {
348 /* Win 8 devices need special quirks */
349 __s32 *quirks = &td->mtclass.quirks;
350 *quirks |= MT_QUIRK_ALWAYS_VALID;
351 *quirks |= MT_QUIRK_IGNORE_DUPLICATES;
352 *quirks |= MT_QUIRK_HOVERING;
353 *quirks |= MT_QUIRK_CONTACT_CNT_ACCURATE;
354 *quirks &= ~MT_QUIRK_NOT_SEEN_MEANS_UP;
355 *quirks &= ~MT_QUIRK_VALID_IS_INRANGE;
356 *quirks &= ~MT_QUIRK_VALID_IS_CONFIDENCE;
357 }
358 break;
359 }
360 }
361
362 static void set_abs(struct input_dev *input, unsigned int code,
363 struct hid_field *field, int snratio)
364 {
365 int fmin = field->logical_minimum;
366 int fmax = field->logical_maximum;
367 int fuzz = snratio ? (fmax - fmin) / snratio : 0;
368 input_set_abs_params(input, code, fmin, fmax, fuzz, 0);
369 input_abs_set_res(input, code, hidinput_calc_abs_res(field, code));
370 }
371
372 static void mt_store_field(struct hid_usage *usage, struct mt_device *td,
373 struct hid_input *hi)
374 {
375 struct mt_fields *f = td->fields;
376
377 if (f->length >= HID_MAX_FIELDS)
378 return;
379
380 f->usages[f->length++] = usage->hid;
381 }
382
383 static int mt_pen_input_mapping(struct hid_device *hdev, struct hid_input *hi,
384 struct hid_field *field, struct hid_usage *usage,
385 unsigned long **bit, int *max)
386 {
387 struct mt_device *td = hid_get_drvdata(hdev);
388
389 td->pen_report_id = field->report->id;
390
391 return 0;
392 }
393
394 static int mt_pen_input_mapped(struct hid_device *hdev, struct hid_input *hi,
395 struct hid_field *field, struct hid_usage *usage,
396 unsigned long **bit, int *max)
397 {
398 return 0;
399 }
400
401 static int mt_pen_event(struct hid_device *hid, struct hid_field *field,
402 struct hid_usage *usage, __s32 value)
403 {
404 /* let hid-input handle it */
405 return 0;
406 }
407
408 static void mt_pen_report(struct hid_device *hid, struct hid_report *report)
409 {
410 struct hid_field *field = report->field[0];
411
412 input_sync(field->hidinput->input);
413 }
414
415 static void mt_pen_input_configured(struct hid_device *hdev,
416 struct hid_input *hi)
417 {
418 char *name = kzalloc(strlen(hi->input->name) + 5, GFP_KERNEL);
419 if (name) {
420 sprintf(name, "%s Pen", hi->input->name);
421 mt_free_input_name(hi);
422 hi->input->name = name;
423 }
424
425 /* force BTN_STYLUS to allow tablet matching in udev */
426 __set_bit(BTN_STYLUS, hi->input->keybit);
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
448 if (usage->usage_index)
449 prev_usage = &field->usage[usage->usage_index - 1];
450
451 switch (usage->hid & HID_USAGE_PAGE) {
452
453 case HID_UP_GENDESK:
454 switch (usage->hid) {
455 case HID_GD_X:
456 if (prev_usage && (prev_usage->hid == usage->hid)) {
457 hid_map_usage(hi, usage, bit, max,
458 EV_ABS, ABS_MT_TOOL_X);
459 set_abs(hi->input, ABS_MT_TOOL_X, field,
460 cls->sn_move);
461 } else {
462 hid_map_usage(hi, usage, bit, max,
463 EV_ABS, ABS_MT_POSITION_X);
464 set_abs(hi->input, ABS_MT_POSITION_X, field,
465 cls->sn_move);
466 }
467
468 mt_store_field(usage, td, hi);
469 return 1;
470 case HID_GD_Y:
471 if (prev_usage && (prev_usage->hid == usage->hid)) {
472 hid_map_usage(hi, usage, bit, max,
473 EV_ABS, ABS_MT_TOOL_Y);
474 set_abs(hi->input, ABS_MT_TOOL_Y, field,
475 cls->sn_move);
476 } else {
477 hid_map_usage(hi, usage, bit, max,
478 EV_ABS, ABS_MT_POSITION_Y);
479 set_abs(hi->input, ABS_MT_POSITION_Y, field,
480 cls->sn_move);
481 }
482
483 mt_store_field(usage, td, hi);
484 return 1;
485 }
486 return 0;
487
488 case HID_UP_DIGITIZER:
489 switch (usage->hid) {
490 case HID_DG_INRANGE:
491 if (cls->quirks & MT_QUIRK_HOVERING) {
492 hid_map_usage(hi, usage, bit, max,
493 EV_ABS, ABS_MT_DISTANCE);
494 input_set_abs_params(hi->input,
495 ABS_MT_DISTANCE, 0, 1, 0, 0);
496 }
497 mt_store_field(usage, td, hi);
498 return 1;
499 case HID_DG_CONFIDENCE:
500 mt_store_field(usage, td, hi);
501 return 1;
502 case HID_DG_TIPSWITCH:
503 hid_map_usage(hi, usage, bit, max, EV_KEY, BTN_TOUCH);
504 input_set_capability(hi->input, EV_KEY, BTN_TOUCH);
505 mt_store_field(usage, td, hi);
506 return 1;
507 case HID_DG_CONTACTID:
508 mt_store_field(usage, td, hi);
509 td->touches_by_report++;
510 td->mt_report_id = field->report->id;
511 return 1;
512 case HID_DG_WIDTH:
513 hid_map_usage(hi, usage, bit, max,
514 EV_ABS, ABS_MT_TOUCH_MAJOR);
515 if (!(cls->quirks & MT_QUIRK_NO_AREA))
516 set_abs(hi->input, ABS_MT_TOUCH_MAJOR, field,
517 cls->sn_width);
518 mt_store_field(usage, td, hi);
519 return 1;
520 case HID_DG_HEIGHT:
521 hid_map_usage(hi, usage, bit, max,
522 EV_ABS, ABS_MT_TOUCH_MINOR);
523 if (!(cls->quirks & MT_QUIRK_NO_AREA)) {
524 set_abs(hi->input, ABS_MT_TOUCH_MINOR, field,
525 cls->sn_height);
526 input_set_abs_params(hi->input,
527 ABS_MT_ORIENTATION, 0, 1, 0, 0);
528 }
529 mt_store_field(usage, td, hi);
530 return 1;
531 case HID_DG_TIPPRESSURE:
532 hid_map_usage(hi, usage, bit, max,
533 EV_ABS, ABS_MT_PRESSURE);
534 set_abs(hi->input, ABS_MT_PRESSURE, field,
535 cls->sn_pressure);
536 mt_store_field(usage, td, hi);
537 return 1;
538 case HID_DG_CONTACTCOUNT:
539 td->cc_index = field->index;
540 td->cc_value_index = usage->usage_index;
541 return 1;
542 case HID_DG_CONTACTMAX:
543 /* we don't set td->last_slot_field as contactcount and
544 * contact max are global to the report */
545 return -1;
546 case HID_DG_TOUCH:
547 /* Legacy devices use TIPSWITCH and not TOUCH.
548 * Let's just ignore this field. */
549 return -1;
550 }
551 /* let hid-input decide for the others */
552 return 0;
553
554 case HID_UP_BUTTON:
555 code = BTN_MOUSE + ((usage->hid - 1) & HID_USAGE);
556 hid_map_usage(hi, usage, bit, max, EV_KEY, code);
557 input_set_capability(hi->input, EV_KEY, code);
558 return 1;
559
560 case 0xff000000:
561 /* we do not want to map these: no input-oriented meaning */
562 return -1;
563 }
564
565 return 0;
566 }
567
568 static int mt_touch_input_mapped(struct hid_device *hdev, struct hid_input *hi,
569 struct hid_field *field, struct hid_usage *usage,
570 unsigned long **bit, int *max)
571 {
572 if (usage->type == EV_KEY || usage->type == EV_ABS)
573 set_bit(usage->type, hi->input->evbit);
574
575 return -1;
576 }
577
578 static int mt_compute_slot(struct mt_device *td, struct input_dev *input)
579 {
580 __s32 quirks = td->mtclass.quirks;
581
582 if (quirks & MT_QUIRK_SLOT_IS_CONTACTID)
583 return td->curdata.contactid;
584
585 if (quirks & MT_QUIRK_CYPRESS)
586 return cypress_compute_slot(td);
587
588 if (quirks & MT_QUIRK_SLOT_IS_CONTACTNUMBER)
589 return td->num_received;
590
591 if (quirks & MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE)
592 return td->curdata.contactid - 1;
593
594 return input_mt_get_slot_by_key(input, td->curdata.contactid);
595 }
596
597 /*
598 * this function is called when a whole contact has been processed,
599 * so that it can assign it to a slot and store the data there
600 */
601 static void mt_complete_slot(struct mt_device *td, struct input_dev *input)
602 {
603 if ((td->mtclass.quirks & MT_QUIRK_CONTACT_CNT_ACCURATE) &&
604 td->num_received >= td->num_expected)
605 return;
606
607 if (td->curvalid || (td->mtclass.quirks & MT_QUIRK_ALWAYS_VALID)) {
608 int slotnum = mt_compute_slot(td, input);
609 struct mt_slot *s = &td->curdata;
610 struct input_mt *mt = input->mt;
611
612 if (slotnum < 0 || slotnum >= td->maxcontacts)
613 return;
614
615 if ((td->mtclass.quirks & MT_QUIRK_IGNORE_DUPLICATES) && mt) {
616 struct input_mt_slot *slot = &mt->slots[slotnum];
617 if (input_mt_is_active(slot) &&
618 input_mt_is_used(mt, slot))
619 return;
620 }
621
622 input_mt_slot(input, slotnum);
623 input_mt_report_slot_state(input, MT_TOOL_FINGER,
624 s->touch_state || s->inrange_state);
625 if (s->touch_state || s->inrange_state) {
626 /* this finger is in proximity of the sensor */
627 int wide = (s->w > s->h);
628 /* divided by two to match visual scale of touch */
629 int major = max(s->w, s->h) >> 1;
630 int minor = min(s->w, s->h) >> 1;
631
632 input_event(input, EV_ABS, ABS_MT_POSITION_X, s->x);
633 input_event(input, EV_ABS, ABS_MT_POSITION_Y, s->y);
634 input_event(input, EV_ABS, ABS_MT_TOOL_X, s->cx);
635 input_event(input, EV_ABS, ABS_MT_TOOL_Y, s->cy);
636 input_event(input, EV_ABS, ABS_MT_DISTANCE,
637 !s->touch_state);
638 input_event(input, EV_ABS, ABS_MT_ORIENTATION, wide);
639 input_event(input, EV_ABS, ABS_MT_PRESSURE, s->p);
640 input_event(input, EV_ABS, ABS_MT_TOUCH_MAJOR, major);
641 input_event(input, EV_ABS, ABS_MT_TOUCH_MINOR, minor);
642 }
643 }
644
645 td->num_received++;
646 }
647
648 /*
649 * this function is called when a whole packet has been received and processed,
650 * so that it can decide what to send to the input layer.
651 */
652 static void mt_sync_frame(struct mt_device *td, struct input_dev *input)
653 {
654 input_mt_sync_frame(input);
655 input_sync(input);
656 td->num_received = 0;
657 }
658
659 static int mt_touch_event(struct hid_device *hid, struct hid_field *field,
660 struct hid_usage *usage, __s32 value)
661 {
662 /* we will handle the hidinput part later, now remains hiddev */
663 if (hid->claimed & HID_CLAIMED_HIDDEV && hid->hiddev_hid_event)
664 hid->hiddev_hid_event(hid, field, usage, value);
665
666 return 1;
667 }
668
669 static void mt_process_mt_event(struct hid_device *hid, struct hid_field *field,
670 struct hid_usage *usage, __s32 value)
671 {
672 struct mt_device *td = hid_get_drvdata(hid);
673 __s32 quirks = td->mtclass.quirks;
674 struct input_dev *input = field->hidinput->input;
675
676 if (hid->claimed & HID_CLAIMED_INPUT) {
677 switch (usage->hid) {
678 case HID_DG_INRANGE:
679 if (quirks & MT_QUIRK_VALID_IS_INRANGE)
680 td->curvalid = value;
681 if (quirks & MT_QUIRK_HOVERING)
682 td->curdata.inrange_state = value;
683 break;
684 case HID_DG_TIPSWITCH:
685 if (quirks & MT_QUIRK_NOT_SEEN_MEANS_UP)
686 td->curvalid = value;
687 td->curdata.touch_state = value;
688 break;
689 case HID_DG_CONFIDENCE:
690 if (quirks & MT_QUIRK_VALID_IS_CONFIDENCE)
691 td->curvalid = value;
692 break;
693 case HID_DG_CONTACTID:
694 td->curdata.contactid = value;
695 break;
696 case HID_DG_TIPPRESSURE:
697 td->curdata.p = value;
698 break;
699 case HID_GD_X:
700 if (usage->code == ABS_MT_TOOL_X)
701 td->curdata.cx = value;
702 else
703 td->curdata.x = value;
704 break;
705 case HID_GD_Y:
706 if (usage->code == ABS_MT_TOOL_Y)
707 td->curdata.cy = value;
708 else
709 td->curdata.y = value;
710 break;
711 case HID_DG_WIDTH:
712 td->curdata.w = value;
713 break;
714 case HID_DG_HEIGHT:
715 td->curdata.h = value;
716 break;
717 case HID_DG_CONTACTCOUNT:
718 break;
719 case HID_DG_TOUCH:
720 /* do nothing */
721 break;
722
723 default:
724 if (usage->type)
725 input_event(input, usage->type, usage->code,
726 value);
727 return;
728 }
729
730 if (usage->usage_index + 1 == field->report_count) {
731 /* we only take into account the last report. */
732 if (usage->hid == td->last_slot_field)
733 mt_complete_slot(td, field->hidinput->input);
734 }
735
736 }
737 }
738
739 static void mt_touch_report(struct hid_device *hid, struct hid_report *report)
740 {
741 struct mt_device *td = hid_get_drvdata(hid);
742 struct hid_field *field;
743 unsigned count;
744 int r, n;
745
746 /*
747 * Includes multi-packet support where subsequent
748 * packets are sent with zero contactcount.
749 */
750 if (td->cc_index >= 0) {
751 struct hid_field *field = report->field[td->cc_index];
752 int value = field->value[td->cc_value_index];
753 if (value)
754 td->num_expected = value;
755 }
756
757 for (r = 0; r < report->maxfield; r++) {
758 field = report->field[r];
759 count = field->report_count;
760
761 if (!(HID_MAIN_ITEM_VARIABLE & field->flags))
762 continue;
763
764 for (n = 0; n < count; n++)
765 mt_process_mt_event(hid, field, &field->usage[n],
766 field->value[n]);
767 }
768
769 if (td->num_received >= td->num_expected)
770 mt_sync_frame(td, report->field[0]->hidinput->input);
771 }
772
773 static void mt_touch_input_configured(struct hid_device *hdev,
774 struct hid_input *hi)
775 {
776 struct mt_device *td = hid_get_drvdata(hdev);
777 struct mt_class *cls = &td->mtclass;
778 struct input_dev *input = hi->input;
779
780 if (!td->maxcontacts)
781 td->maxcontacts = MT_DEFAULT_MAXCONTACT;
782
783 mt_post_parse(td);
784 if (td->serial_maybe)
785 mt_post_parse_default_settings(td);
786
787 if (cls->is_indirect)
788 td->mt_flags |= INPUT_MT_POINTER;
789
790 if (cls->quirks & MT_QUIRK_NOT_SEEN_MEANS_UP)
791 td->mt_flags |= INPUT_MT_DROP_UNUSED;
792
793 input_mt_init_slots(input, td->maxcontacts, td->mt_flags);
794
795 td->mt_flags = 0;
796 }
797
798 static int mt_input_mapping(struct hid_device *hdev, struct hid_input *hi,
799 struct hid_field *field, struct hid_usage *usage,
800 unsigned long **bit, int *max)
801 {
802 /* Only map fields from TouchScreen or TouchPad collections.
803 * We need to ignore fields that belong to other collections
804 * such as Mouse that might have the same GenericDesktop usages. */
805 if (field->application != HID_DG_TOUCHSCREEN &&
806 field->application != HID_DG_PEN &&
807 field->application != HID_DG_TOUCHPAD)
808 return -1;
809
810 if (field->physical == HID_DG_STYLUS)
811 return mt_pen_input_mapping(hdev, hi, field, usage, bit, max);
812
813 return mt_touch_input_mapping(hdev, hi, field, usage, bit, max);
814 }
815
816 static int mt_input_mapped(struct hid_device *hdev, struct hid_input *hi,
817 struct hid_field *field, struct hid_usage *usage,
818 unsigned long **bit, int *max)
819 {
820 if (field->physical == HID_DG_STYLUS)
821 return mt_pen_input_mapped(hdev, hi, field, usage, bit, max);
822
823 return mt_touch_input_mapped(hdev, hi, field, usage, bit, max);
824 }
825
826 static int mt_event(struct hid_device *hid, struct hid_field *field,
827 struct hid_usage *usage, __s32 value)
828 {
829 struct mt_device *td = hid_get_drvdata(hid);
830
831 if (field->report->id == td->mt_report_id)
832 return mt_touch_event(hid, field, usage, value);
833
834 if (field->report->id == td->pen_report_id)
835 return mt_pen_event(hid, field, usage, value);
836
837 /* ignore other reports */
838 return 1;
839 }
840
841 static void mt_report(struct hid_device *hid, struct hid_report *report)
842 {
843 struct mt_device *td = hid_get_drvdata(hid);
844
845 if (!(hid->claimed & HID_CLAIMED_INPUT))
846 return;
847
848 if (report->id == td->mt_report_id)
849 mt_touch_report(hid, report);
850
851 if (report->id == td->pen_report_id)
852 mt_pen_report(hid, report);
853 }
854
855 static void mt_set_input_mode(struct hid_device *hdev)
856 {
857 struct mt_device *td = hid_get_drvdata(hdev);
858 struct hid_report *r;
859 struct hid_report_enum *re;
860
861 if (td->inputmode < 0)
862 return;
863
864 re = &(hdev->report_enum[HID_FEATURE_REPORT]);
865 r = re->report_id_hash[td->inputmode];
866 if (r) {
867 r->field[0]->value[td->inputmode_index] = 0x02;
868 hid_hw_request(hdev, r, HID_REQ_SET_REPORT);
869 }
870 }
871
872 static void mt_set_maxcontacts(struct hid_device *hdev)
873 {
874 struct mt_device *td = hid_get_drvdata(hdev);
875 struct hid_report *r;
876 struct hid_report_enum *re;
877 int fieldmax, max;
878
879 if (td->maxcontact_report_id < 0)
880 return;
881
882 if (!td->mtclass.maxcontacts)
883 return;
884
885 re = &hdev->report_enum[HID_FEATURE_REPORT];
886 r = re->report_id_hash[td->maxcontact_report_id];
887 if (r) {
888 max = td->mtclass.maxcontacts;
889 fieldmax = r->field[0]->logical_maximum;
890 max = min(fieldmax, max);
891 if (r->field[0]->value[0] != max) {
892 r->field[0]->value[0] = max;
893 hid_hw_request(hdev, r, HID_REQ_SET_REPORT);
894 }
895 }
896 }
897
898 static void mt_post_parse_default_settings(struct mt_device *td)
899 {
900 __s32 quirks = td->mtclass.quirks;
901
902 /* unknown serial device needs special quirks */
903 if (td->touches_by_report == 1) {
904 quirks |= MT_QUIRK_ALWAYS_VALID;
905 quirks &= ~MT_QUIRK_NOT_SEEN_MEANS_UP;
906 quirks &= ~MT_QUIRK_VALID_IS_INRANGE;
907 quirks &= ~MT_QUIRK_VALID_IS_CONFIDENCE;
908 quirks &= ~MT_QUIRK_CONTACT_CNT_ACCURATE;
909 }
910
911 td->mtclass.quirks = quirks;
912 }
913
914 static void mt_post_parse(struct mt_device *td)
915 {
916 struct mt_fields *f = td->fields;
917 struct mt_class *cls = &td->mtclass;
918
919 if (td->touches_by_report > 0) {
920 int field_count_per_touch = f->length / td->touches_by_report;
921 td->last_slot_field = f->usages[field_count_per_touch - 1];
922 }
923
924 if (td->cc_index < 0)
925 cls->quirks &= ~MT_QUIRK_CONTACT_CNT_ACCURATE;
926 }
927
928 static void mt_input_configured(struct hid_device *hdev, struct hid_input *hi)
929 {
930 struct mt_device *td = hid_get_drvdata(hdev);
931 char *name = kstrdup(hdev->name, GFP_KERNEL);
932
933 if (name)
934 hi->input->name = name;
935
936 if (hi->report->id == td->mt_report_id)
937 mt_touch_input_configured(hdev, hi);
938
939 if (hi->report->id == td->pen_report_id)
940 mt_pen_input_configured(hdev, hi);
941 }
942
943 static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id)
944 {
945 int ret, i;
946 struct mt_device *td;
947 struct mt_class *mtclass = mt_classes; /* MT_CLS_DEFAULT */
948 struct hid_input *hi;
949
950 for (i = 0; mt_classes[i].name ; i++) {
951 if (id->driver_data == mt_classes[i].name) {
952 mtclass = &(mt_classes[i]);
953 break;
954 }
955 }
956
957 /* This allows the driver to correctly support devices
958 * that emit events over several HID messages.
959 */
960 hdev->quirks |= HID_QUIRK_NO_INPUT_SYNC;
961
962 /*
963 * This allows the driver to handle different input sensors
964 * that emits events through different reports on the same HID
965 * device.
966 */
967 hdev->quirks |= HID_QUIRK_MULTI_INPUT;
968 hdev->quirks |= HID_QUIRK_NO_EMPTY_INPUT;
969
970 td = kzalloc(sizeof(struct mt_device), GFP_KERNEL);
971 if (!td) {
972 dev_err(&hdev->dev, "cannot allocate multitouch data\n");
973 return -ENOMEM;
974 }
975 td->mtclass = *mtclass;
976 td->inputmode = -1;
977 td->maxcontact_report_id = -1;
978 td->cc_index = -1;
979 td->mt_report_id = -1;
980 td->pen_report_id = -1;
981 hid_set_drvdata(hdev, td);
982
983 td->fields = kzalloc(sizeof(struct mt_fields), GFP_KERNEL);
984 if (!td->fields) {
985 dev_err(&hdev->dev, "cannot allocate multitouch fields data\n");
986 ret = -ENOMEM;
987 goto fail;
988 }
989
990 if (id->vendor == HID_ANY_ID && id->product == HID_ANY_ID)
991 td->serial_maybe = true;
992
993 ret = hid_parse(hdev);
994 if (ret != 0)
995 goto fail;
996
997 ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
998 if (ret)
999 goto hid_fail;
1000
1001 ret = sysfs_create_group(&hdev->dev.kobj, &mt_attribute_group);
1002
1003 mt_set_maxcontacts(hdev);
1004 mt_set_input_mode(hdev);
1005
1006 kfree(td->fields);
1007 td->fields = NULL;
1008
1009 return 0;
1010
1011 hid_fail:
1012 list_for_each_entry(hi, &hdev->inputs, list)
1013 mt_free_input_name(hi);
1014 fail:
1015 kfree(td->fields);
1016 kfree(td);
1017 return ret;
1018 }
1019
1020 #ifdef CONFIG_PM
1021 static int mt_reset_resume(struct hid_device *hdev)
1022 {
1023 mt_set_maxcontacts(hdev);
1024 mt_set_input_mode(hdev);
1025 return 0;
1026 }
1027
1028 static int mt_resume(struct hid_device *hdev)
1029 {
1030 /* Some Elan legacy devices require SET_IDLE to be set on resume.
1031 * It should be safe to send it to other devices too.
1032 * Tested on 3M, Stantum, Cypress, Zytronic, eGalax, and Elan panels. */
1033
1034 hid_hw_idle(hdev, 0, 0, HID_REQ_SET_IDLE);
1035
1036 return 0;
1037 }
1038 #endif
1039
1040 static void mt_remove(struct hid_device *hdev)
1041 {
1042 struct mt_device *td = hid_get_drvdata(hdev);
1043 struct hid_input *hi;
1044
1045 sysfs_remove_group(&hdev->dev.kobj, &mt_attribute_group);
1046 list_for_each_entry(hi, &hdev->inputs, list)
1047 mt_free_input_name(hi);
1048
1049 hid_hw_stop(hdev);
1050
1051 kfree(td);
1052 hid_set_drvdata(hdev, NULL);
1053 }
1054
1055 static const struct hid_device_id mt_devices[] = {
1056
1057 /* 3M panels */
1058 { .driver_data = MT_CLS_3M,
1059 MT_USB_DEVICE(USB_VENDOR_ID_3M,
1060 USB_DEVICE_ID_3M1968) },
1061 { .driver_data = MT_CLS_3M,
1062 MT_USB_DEVICE(USB_VENDOR_ID_3M,
1063 USB_DEVICE_ID_3M2256) },
1064 { .driver_data = MT_CLS_3M,
1065 MT_USB_DEVICE(USB_VENDOR_ID_3M,
1066 USB_DEVICE_ID_3M3266) },
1067
1068 /* ActionStar panels */
1069 { .driver_data = MT_CLS_NSMU,
1070 MT_USB_DEVICE(USB_VENDOR_ID_ACTIONSTAR,
1071 USB_DEVICE_ID_ACTIONSTAR_1011) },
1072
1073 /* Atmel panels */
1074 { .driver_data = MT_CLS_SERIAL,
1075 MT_USB_DEVICE(USB_VENDOR_ID_ATMEL,
1076 USB_DEVICE_ID_ATMEL_MULTITOUCH) },
1077 { .driver_data = MT_CLS_SERIAL,
1078 MT_USB_DEVICE(USB_VENDOR_ID_ATMEL,
1079 USB_DEVICE_ID_ATMEL_MXT_DIGITIZER) },
1080
1081 /* Baanto multitouch devices */
1082 { .driver_data = MT_CLS_NSMU,
1083 MT_USB_DEVICE(USB_VENDOR_ID_BAANTO,
1084 USB_DEVICE_ID_BAANTO_MT_190W2) },
1085 /* Cando panels */
1086 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
1087 MT_USB_DEVICE(USB_VENDOR_ID_CANDO,
1088 USB_DEVICE_ID_CANDO_MULTI_TOUCH) },
1089 { .driver_data = MT_CLS_DUAL_CONTACT_NUMBER,
1090 MT_USB_DEVICE(USB_VENDOR_ID_CANDO,
1091 USB_DEVICE_ID_CANDO_MULTI_TOUCH_10_1) },
1092 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
1093 MT_USB_DEVICE(USB_VENDOR_ID_CANDO,
1094 USB_DEVICE_ID_CANDO_MULTI_TOUCH_11_6) },
1095 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
1096 MT_USB_DEVICE(USB_VENDOR_ID_CANDO,
1097 USB_DEVICE_ID_CANDO_MULTI_TOUCH_15_6) },
1098
1099 /* Chunghwa Telecom touch panels */
1100 { .driver_data = MT_CLS_NSMU,
1101 MT_USB_DEVICE(USB_VENDOR_ID_CHUNGHWAT,
1102 USB_DEVICE_ID_CHUNGHWAT_MULTITOUCH) },
1103
1104 /* CVTouch panels */
1105 { .driver_data = MT_CLS_NSMU,
1106 MT_USB_DEVICE(USB_VENDOR_ID_CVTOUCH,
1107 USB_DEVICE_ID_CVTOUCH_SCREEN) },
1108
1109 /* Cypress panel */
1110 { .driver_data = MT_CLS_CYPRESS,
1111 HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS,
1112 USB_DEVICE_ID_CYPRESS_TRUETOUCH) },
1113
1114 /* Data Modul easyMaxTouch */
1115 { .driver_data = MT_CLS_DEFAULT,
1116 MT_USB_DEVICE(USB_VENDOR_ID_DATA_MODUL,
1117 USB_VENDOR_ID_DATA_MODUL_EASYMAXTOUCH) },
1118
1119 /* eGalax devices (resistive) */
1120 { .driver_data = MT_CLS_EGALAX,
1121 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1122 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_480D) },
1123 { .driver_data = MT_CLS_EGALAX,
1124 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1125 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_480E) },
1126
1127 /* eGalax devices (capacitive) */
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,
1132 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1133 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_720C) },
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_SERIAL,
1141 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1142 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_725E) },
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_726B) },
1149 { .driver_data = MT_CLS_EGALAX,
1150 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1151 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72A1) },
1152 { .driver_data = MT_CLS_EGALAX_SERIAL,
1153 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1154 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72AA) },
1155 { .driver_data = MT_CLS_EGALAX,
1156 HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
1157 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72C4) },
1158 { .driver_data = MT_CLS_EGALAX,
1159 HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
1160 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72D0) },
1161 { .driver_data = MT_CLS_EGALAX,
1162 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1163 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72FA) },
1164 { .driver_data = MT_CLS_EGALAX,
1165 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1166 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7302) },
1167 { .driver_data = MT_CLS_EGALAX_SERIAL,
1168 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1169 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7349) },
1170 { .driver_data = MT_CLS_EGALAX_SERIAL,
1171 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1172 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_73F7) },
1173 { .driver_data = MT_CLS_EGALAX_SERIAL,
1174 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1175 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_A001) },
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
1195 /* Gametel game controller */
1196 { .driver_data = MT_CLS_NSMU,
1197 MT_BT_DEVICE(USB_VENDOR_ID_FRUCTEL,
1198 USB_DEVICE_ID_GAMETEL_MT_MODE) },
1199
1200 /* GoodTouch panels */
1201 { .driver_data = MT_CLS_NSMU,
1202 MT_USB_DEVICE(USB_VENDOR_ID_GOODTOUCH,
1203 USB_DEVICE_ID_GOODTOUCH_000f) },
1204
1205 /* Hanvon panels */
1206 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID,
1207 MT_USB_DEVICE(USB_VENDOR_ID_HANVON_ALT,
1208 USB_DEVICE_ID_HANVON_ALT_MULTITOUCH) },
1209
1210 /* Ideacom panel */
1211 { .driver_data = MT_CLS_SERIAL,
1212 MT_USB_DEVICE(USB_VENDOR_ID_IDEACOM,
1213 USB_DEVICE_ID_IDEACOM_IDC6650) },
1214 { .driver_data = MT_CLS_SERIAL,
1215 MT_USB_DEVICE(USB_VENDOR_ID_IDEACOM,
1216 USB_DEVICE_ID_IDEACOM_IDC6651) },
1217
1218 /* Ilitek dual touch panel */
1219 { .driver_data = MT_CLS_NSMU,
1220 MT_USB_DEVICE(USB_VENDOR_ID_ILITEK,
1221 USB_DEVICE_ID_ILITEK_MULTITOUCH) },
1222
1223 /* IRTOUCH panels */
1224 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID,
1225 MT_USB_DEVICE(USB_VENDOR_ID_IRTOUCHSYSTEMS,
1226 USB_DEVICE_ID_IRTOUCH_INFRARED_USB) },
1227
1228 /* LG Display panels */
1229 { .driver_data = MT_CLS_DEFAULT,
1230 MT_USB_DEVICE(USB_VENDOR_ID_LG,
1231 USB_DEVICE_ID_LG_MULTITOUCH) },
1232
1233 /* Lumio panels */
1234 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
1235 MT_USB_DEVICE(USB_VENDOR_ID_LUMIO,
1236 USB_DEVICE_ID_CRYSTALTOUCH) },
1237 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
1238 MT_USB_DEVICE(USB_VENDOR_ID_LUMIO,
1239 USB_DEVICE_ID_CRYSTALTOUCH_DUAL) },
1240
1241 /* MosArt panels */
1242 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
1243 MT_USB_DEVICE(USB_VENDOR_ID_ASUS,
1244 USB_DEVICE_ID_ASUS_T91MT)},
1245 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
1246 MT_USB_DEVICE(USB_VENDOR_ID_ASUS,
1247 USB_DEVICE_ID_ASUSTEK_MULTITOUCH_YFO) },
1248 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
1249 MT_USB_DEVICE(USB_VENDOR_ID_TURBOX,
1250 USB_DEVICE_ID_TURBOX_TOUCHSCREEN_MOSART) },
1251
1252 /* Nexio panels */
1253 { .driver_data = MT_CLS_DEFAULT,
1254 MT_USB_DEVICE(USB_VENDOR_ID_NEXIO,
1255 USB_DEVICE_ID_NEXIO_MULTITOUCH_420)},
1256
1257 /* Panasonic panels */
1258 { .driver_data = MT_CLS_PANASONIC,
1259 MT_USB_DEVICE(USB_VENDOR_ID_PANASONIC,
1260 USB_DEVICE_ID_PANABOARD_UBT780) },
1261 { .driver_data = MT_CLS_PANASONIC,
1262 MT_USB_DEVICE(USB_VENDOR_ID_PANASONIC,
1263 USB_DEVICE_ID_PANABOARD_UBT880) },
1264
1265 /* Novatek Panel */
1266 { .driver_data = MT_CLS_NSMU,
1267 MT_USB_DEVICE(USB_VENDOR_ID_NOVATEK,
1268 USB_DEVICE_ID_NOVATEK_PCT) },
1269
1270 /* PenMount panels */
1271 { .driver_data = MT_CLS_CONFIDENCE,
1272 MT_USB_DEVICE(USB_VENDOR_ID_PENMOUNT,
1273 USB_DEVICE_ID_PENMOUNT_PCI) },
1274
1275 /* PixArt optical touch screen */
1276 { .driver_data = MT_CLS_INRANGE_CONTACTNUMBER,
1277 MT_USB_DEVICE(USB_VENDOR_ID_PIXART,
1278 USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN) },
1279 { .driver_data = MT_CLS_INRANGE_CONTACTNUMBER,
1280 MT_USB_DEVICE(USB_VENDOR_ID_PIXART,
1281 USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN1) },
1282 { .driver_data = MT_CLS_INRANGE_CONTACTNUMBER,
1283 MT_USB_DEVICE(USB_VENDOR_ID_PIXART,
1284 USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN2) },
1285
1286 /* PixCir-based panels */
1287 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID,
1288 MT_USB_DEVICE(USB_VENDOR_ID_HANVON,
1289 USB_DEVICE_ID_HANVON_MULTITOUCH) },
1290 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID,
1291 MT_USB_DEVICE(USB_VENDOR_ID_CANDO,
1292 USB_DEVICE_ID_CANDO_PIXCIR_MULTI_TOUCH) },
1293
1294 /* Quanta-based panels */
1295 { .driver_data = MT_CLS_CONFIDENCE_CONTACT_ID,
1296 MT_USB_DEVICE(USB_VENDOR_ID_QUANTA,
1297 USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH) },
1298 { .driver_data = MT_CLS_CONFIDENCE_CONTACT_ID,
1299 MT_USB_DEVICE(USB_VENDOR_ID_QUANTA,
1300 USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3001) },
1301 { .driver_data = MT_CLS_CONFIDENCE_CONTACT_ID,
1302 MT_USB_DEVICE(USB_VENDOR_ID_QUANTA,
1303 USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3008) },
1304
1305 /* Stantum panels */
1306 { .driver_data = MT_CLS_CONFIDENCE,
1307 MT_USB_DEVICE(USB_VENDOR_ID_STANTUM,
1308 USB_DEVICE_ID_MTP)},
1309 { .driver_data = MT_CLS_CONFIDENCE,
1310 MT_USB_DEVICE(USB_VENDOR_ID_STANTUM_STM,
1311 USB_DEVICE_ID_MTP_STM)},
1312 { .driver_data = MT_CLS_DEFAULT,
1313 MT_USB_DEVICE(USB_VENDOR_ID_STANTUM_SITRONIX,
1314 USB_DEVICE_ID_MTP_SITRONIX)},
1315
1316 /* TopSeed panels */
1317 { .driver_data = MT_CLS_TOPSEED,
1318 MT_USB_DEVICE(USB_VENDOR_ID_TOPSEED2,
1319 USB_DEVICE_ID_TOPSEED2_PERIPAD_701) },
1320
1321 /* Touch International panels */
1322 { .driver_data = MT_CLS_NSMU,
1323 MT_USB_DEVICE(USB_VENDOR_ID_TOUCH_INTL,
1324 USB_DEVICE_ID_TOUCH_INTL_MULTI_TOUCH) },
1325
1326 /* Unitec panels */
1327 { .driver_data = MT_CLS_NSMU,
1328 MT_USB_DEVICE(USB_VENDOR_ID_UNITEC,
1329 USB_DEVICE_ID_UNITEC_USB_TOUCH_0709) },
1330 { .driver_data = MT_CLS_NSMU,
1331 MT_USB_DEVICE(USB_VENDOR_ID_UNITEC,
1332 USB_DEVICE_ID_UNITEC_USB_TOUCH_0A19) },
1333 /* XAT */
1334 { .driver_data = MT_CLS_NSMU,
1335 MT_USB_DEVICE(USB_VENDOR_ID_XAT,
1336 USB_DEVICE_ID_XAT_CSR) },
1337
1338 /* Xiroku */
1339 { .driver_data = MT_CLS_NSMU,
1340 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1341 USB_DEVICE_ID_XIROKU_SPX) },
1342 { .driver_data = MT_CLS_NSMU,
1343 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1344 USB_DEVICE_ID_XIROKU_MPX) },
1345 { .driver_data = MT_CLS_NSMU,
1346 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1347 USB_DEVICE_ID_XIROKU_CSR) },
1348 { .driver_data = MT_CLS_NSMU,
1349 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1350 USB_DEVICE_ID_XIROKU_SPX1) },
1351 { .driver_data = MT_CLS_NSMU,
1352 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1353 USB_DEVICE_ID_XIROKU_MPX1) },
1354 { .driver_data = MT_CLS_NSMU,
1355 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1356 USB_DEVICE_ID_XIROKU_CSR1) },
1357 { .driver_data = MT_CLS_NSMU,
1358 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1359 USB_DEVICE_ID_XIROKU_SPX2) },
1360 { .driver_data = MT_CLS_NSMU,
1361 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1362 USB_DEVICE_ID_XIROKU_MPX2) },
1363 { .driver_data = MT_CLS_NSMU,
1364 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1365 USB_DEVICE_ID_XIROKU_CSR2) },
1366
1367 /* Zytronic panels */
1368 { .driver_data = MT_CLS_SERIAL,
1369 MT_USB_DEVICE(USB_VENDOR_ID_ZYTRONIC,
1370 USB_DEVICE_ID_ZYTRONIC_ZXY100) },
1371
1372 /* Generic MT device */
1373 { HID_DEVICE(HID_BUS_ANY, HID_GROUP_MULTITOUCH, HID_ANY_ID, HID_ANY_ID) },
1374 { }
1375 };
1376 MODULE_DEVICE_TABLE(hid, mt_devices);
1377
1378 static const struct hid_usage_id mt_grabbed_usages[] = {
1379 { HID_ANY_ID, HID_ANY_ID, HID_ANY_ID },
1380 { HID_ANY_ID - 1, HID_ANY_ID - 1, HID_ANY_ID - 1}
1381 };
1382
1383 static struct hid_driver mt_driver = {
1384 .name = "hid-multitouch",
1385 .id_table = mt_devices,
1386 .probe = mt_probe,
1387 .remove = mt_remove,
1388 .input_mapping = mt_input_mapping,
1389 .input_mapped = mt_input_mapped,
1390 .input_configured = mt_input_configured,
1391 .feature_mapping = mt_feature_mapping,
1392 .usage_table = mt_grabbed_usages,
1393 .event = mt_event,
1394 .report = mt_report,
1395 #ifdef CONFIG_PM
1396 .reset_resume = mt_reset_resume,
1397 .resume = mt_resume,
1398 #endif
1399 };
1400 module_hid_driver(mt_driver);
Linus' kernel tree