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nl80211: Fix HT_IBSS feature check in ibss_join
[linux-2.6/btrfs-unstable.git] / drivers / hid / hid-multitouch.c
blob3eb02b94fc87c8a3bc903474db7c3b55efd5ead5
1 /*
2 * HID driver for multitouch panels
3 *
4 * Copyright (c) 2010-2012 Stephane Chatty <chatty@enac.fr>
5 * Copyright (c) 2010-2012 Benjamin Tissoires <benjamin.tissoires@gmail.com>
6 * Copyright (c) 2010-2012 Ecole Nationale de l'Aviation Civile, France
7 *
8 * This code is partly based on hid-egalax.c:
9 *
10 * Copyright (c) 2010 Stephane Chatty <chatty@enac.fr>
11 * Copyright (c) 2010 Henrik Rydberg <rydberg@euromail.se>
12 * Copyright (c) 2010 Canonical, Ltd.
13 *
14 * This code is partly based on hid-3m-pct.c:
15 *
16 * Copyright (c) 2009-2010 Stephane Chatty <chatty@enac.fr>
17 * Copyright (c) 2010 Henrik Rydberg <rydberg@euromail.se>
18 * Copyright (c) 2010 Canonical, Ltd.
19 *
20 */
21
22 /*
23 * This program is free software; you can redistribute it and/or modify it
24 * under the terms of the GNU General Public License as published by the Free
25 * Software Foundation; either version 2 of the License, or (at your option)
26 * any later version.
27 */
28
29 #include <linux/device.h>
30 #include <linux/hid.h>
31 #include <linux/module.h>
32 #include <linux/slab.h>
33 #include <linux/usb.h>
34 #include <linux/input/mt.h>
35 #include "usbhid/usbhid.h"
36
37
38 MODULE_AUTHOR("Stephane Chatty <chatty@enac.fr>");
39 MODULE_AUTHOR("Benjamin Tissoires <benjamin.tissoires@gmail.com>");
40 MODULE_DESCRIPTION("HID multitouch panels");
41 MODULE_LICENSE("GPL");
42
43 #include "hid-ids.h"
44
45 /* quirks to control the device */
46 #define MT_QUIRK_NOT_SEEN_MEANS_UP (1 << 0)
47 #define MT_QUIRK_SLOT_IS_CONTACTID (1 << 1)
48 #define MT_QUIRK_CYPRESS (1 << 2)
49 #define MT_QUIRK_SLOT_IS_CONTACTNUMBER (1 << 3)
50 #define MT_QUIRK_ALWAYS_VALID (1 << 4)
51 #define MT_QUIRK_VALID_IS_INRANGE (1 << 5)
52 #define MT_QUIRK_VALID_IS_CONFIDENCE (1 << 6)
53 #define MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE (1 << 8)
54 #define MT_QUIRK_NO_AREA (1 << 9)
55
56 struct mt_slot {
57 __s32 x, y, p, w, h;
58 __s32 contactid; /* the device ContactID assigned to this slot */
59 bool touch_state; /* is the touch valid? */
60 };
61
62 struct mt_class {
63 __s32 name; /* MT_CLS */
64 __s32 quirks;
65 __s32 sn_move; /* Signal/noise ratio for move events */
66 __s32 sn_width; /* Signal/noise ratio for width events */
67 __s32 sn_height; /* Signal/noise ratio for height events */
68 __s32 sn_pressure; /* Signal/noise ratio for pressure events */
69 __u8 maxcontacts;
70 bool is_indirect; /* true for touchpads */
71 };
72
73 struct mt_fields {
74 unsigned usages[HID_MAX_FIELDS];
75 unsigned int length;
76 };
77
78 struct mt_device {
79 struct mt_slot curdata; /* placeholder of incoming data */
80 struct mt_class mtclass; /* our mt device class */
81 struct mt_fields *fields; /* temporary placeholder for storing the
82 multitouch fields */
83 unsigned last_field_index; /* last field index of the report */
84 unsigned last_slot_field; /* the last field of a slot */
85 __s8 inputmode; /* InputMode HID feature, -1 if non-existent */
86 __s8 inputmode_index; /* InputMode HID feature index in the report */
87 __s8 maxcontact_report_id; /* Maximum Contact Number HID feature,
88 -1 if non-existent */
89 __u8 num_received; /* how many contacts we received */
90 __u8 num_expected; /* expected last contact index */
91 __u8 maxcontacts;
92 __u8 touches_by_report; /* how many touches are present in one report:
93 * 1 means we should use a serial protocol
94 * > 1 means hybrid (multitouch) protocol */
95 bool serial_maybe; /* need to check for serial protocol */
96 bool curvalid; /* is the current contact valid? */
97 unsigned mt_flags; /* flags to pass to input-mt */
98 };
99
100 /* classes of device behavior */
101 #define MT_CLS_DEFAULT 0x0001
102
103 #define MT_CLS_SERIAL 0x0002
104 #define MT_CLS_CONFIDENCE 0x0003
105 #define MT_CLS_CONFIDENCE_CONTACT_ID 0x0004
106 #define MT_CLS_CONFIDENCE_MINUS_ONE 0x0005
107 #define MT_CLS_DUAL_INRANGE_CONTACTID 0x0006
108 #define MT_CLS_DUAL_INRANGE_CONTACTNUMBER 0x0007
109 #define MT_CLS_DUAL_NSMU_CONTACTID 0x0008
110 #define MT_CLS_INRANGE_CONTACTNUMBER 0x0009
111
112 /* vendor specific classes */
113 #define MT_CLS_3M 0x0101
114 #define MT_CLS_CYPRESS 0x0102
115 #define MT_CLS_EGALAX 0x0103
116 #define MT_CLS_EGALAX_SERIAL 0x0104
117 #define MT_CLS_TOPSEED 0x0105
118 #define MT_CLS_PANASONIC 0x0106
119 #define MT_CLS_FLATFROG 0x0107
120 #define MT_CLS_GENERALTOUCH_TWOFINGERS 0x0108
121 #define MT_CLS_GENERALTOUCH_PWT_TENFINGERS 0x0109
122
123 #define MT_DEFAULT_MAXCONTACT 10
124
125 #define MT_USB_DEVICE(v, p) HID_DEVICE(BUS_USB, HID_GROUP_MULTITOUCH, v, p)
126 #define MT_BT_DEVICE(v, p) HID_DEVICE(BUS_BLUETOOTH, HID_GROUP_MULTITOUCH, v, p)
127
128 /*
129 * these device-dependent functions determine what slot corresponds
130 * to a valid contact that was just read.
131 */
132
133 static int cypress_compute_slot(struct mt_device *td)
134 {
135 if (td->curdata.contactid != 0 || td->num_received == 0)
136 return td->curdata.contactid;
137 else
138 return -1;
139 }
140
141 static struct mt_class mt_classes[] = {
142 { .name = MT_CLS_DEFAULT,
143 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP },
144 { .name = MT_CLS_SERIAL,
145 .quirks = MT_QUIRK_ALWAYS_VALID},
146 { .name = MT_CLS_CONFIDENCE,
147 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE },
148 { .name = MT_CLS_CONFIDENCE_CONTACT_ID,
149 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE |
150 MT_QUIRK_SLOT_IS_CONTACTID },
151 { .name = MT_CLS_CONFIDENCE_MINUS_ONE,
152 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE |
153 MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE },
154 { .name = MT_CLS_DUAL_INRANGE_CONTACTID,
155 .quirks = MT_QUIRK_VALID_IS_INRANGE |
156 MT_QUIRK_SLOT_IS_CONTACTID,
157 .maxcontacts = 2 },
158 { .name = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
159 .quirks = MT_QUIRK_VALID_IS_INRANGE |
160 MT_QUIRK_SLOT_IS_CONTACTNUMBER,
161 .maxcontacts = 2 },
162 { .name = MT_CLS_DUAL_NSMU_CONTACTID,
163 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP |
164 MT_QUIRK_SLOT_IS_CONTACTID,
165 .maxcontacts = 2 },
166 { .name = MT_CLS_INRANGE_CONTACTNUMBER,
167 .quirks = MT_QUIRK_VALID_IS_INRANGE |
168 MT_QUIRK_SLOT_IS_CONTACTNUMBER },
169
170 /*
171 * vendor specific classes
172 */
173 { .name = MT_CLS_3M,
174 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE |
175 MT_QUIRK_SLOT_IS_CONTACTID,
176 .sn_move = 2048,
177 .sn_width = 128,
178 .sn_height = 128,
179 .maxcontacts = 60,
180 },
181 { .name = MT_CLS_CYPRESS,
182 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP |
183 MT_QUIRK_CYPRESS,
184 .maxcontacts = 10 },
185 { .name = MT_CLS_EGALAX,
186 .quirks = MT_QUIRK_SLOT_IS_CONTACTID |
187 MT_QUIRK_VALID_IS_INRANGE,
188 .sn_move = 4096,
189 .sn_pressure = 32,
190 },
191 { .name = MT_CLS_EGALAX_SERIAL,
192 .quirks = MT_QUIRK_SLOT_IS_CONTACTID |
193 MT_QUIRK_ALWAYS_VALID,
194 .sn_move = 4096,
195 .sn_pressure = 32,
196 },
197 { .name = MT_CLS_TOPSEED,
198 .quirks = MT_QUIRK_ALWAYS_VALID,
199 .is_indirect = true,
200 .maxcontacts = 2,
201 },
202 { .name = MT_CLS_PANASONIC,
203 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP,
204 .maxcontacts = 4 },
205 { .name = MT_CLS_GENERALTOUCH_TWOFINGERS,
206 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP |
207 MT_QUIRK_VALID_IS_INRANGE |
208 MT_QUIRK_SLOT_IS_CONTACTNUMBER,
209 .maxcontacts = 2
210 },
211 { .name = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
212 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP |
213 MT_QUIRK_SLOT_IS_CONTACTNUMBER,
214 .maxcontacts = 10
215 },
216
217 { .name = MT_CLS_FLATFROG,
218 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP |
219 MT_QUIRK_NO_AREA,
220 .sn_move = 2048,
221 .maxcontacts = 40,
222 },
223 { }
224 };
225
226 static ssize_t mt_show_quirks(struct device *dev,
227 struct device_attribute *attr,
228 char *buf)
229 {
230 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
231 struct mt_device *td = hid_get_drvdata(hdev);
232
233 return sprintf(buf, "%u\n", td->mtclass.quirks);
234 }
235
236 static ssize_t mt_set_quirks(struct device *dev,
237 struct device_attribute *attr,
238 const char *buf, size_t count)
239 {
240 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
241 struct mt_device *td = hid_get_drvdata(hdev);
242
243 unsigned long val;
244
245 if (kstrtoul(buf, 0, &val))
246 return -EINVAL;
247
248 td->mtclass.quirks = val;
249
250 return count;
251 }
252
253 static DEVICE_ATTR(quirks, S_IWUSR | S_IRUGO, mt_show_quirks, mt_set_quirks);
254
255 static struct attribute *sysfs_attrs[] = {
256 &dev_attr_quirks.attr,
257 NULL
258 };
259
260 static struct attribute_group mt_attribute_group = {
261 .attrs = sysfs_attrs
262 };
263
264 static void mt_feature_mapping(struct hid_device *hdev,
265 struct hid_field *field, struct hid_usage *usage)
266 {
267 struct mt_device *td = hid_get_drvdata(hdev);
268 int i;
269
270 switch (usage->hid) {
271 case HID_DG_INPUTMODE:
272 td->inputmode = field->report->id;
273 td->inputmode_index = 0; /* has to be updated below */
274
275 for (i=0; i < field->maxusage; i++) {
276 if (field->usage[i].hid == usage->hid) {
277 td->inputmode_index = i;
278 break;
279 }
280 }
281
282 break;
283 case HID_DG_CONTACTMAX:
284 td->maxcontact_report_id = field->report->id;
285 td->maxcontacts = field->value[0];
286 if (td->mtclass.maxcontacts)
287 /* check if the maxcontacts is given by the class */
288 td->maxcontacts = td->mtclass.maxcontacts;
289
290 break;
291 }
292 }
293
294 static void set_abs(struct input_dev *input, unsigned int code,
295 struct hid_field *field, int snratio)
296 {
297 int fmin = field->logical_minimum;
298 int fmax = field->logical_maximum;
299 int fuzz = snratio ? (fmax - fmin) / snratio : 0;
300 input_set_abs_params(input, code, fmin, fmax, fuzz, 0);
301 }
302
303 static void mt_store_field(struct hid_usage *usage, struct mt_device *td,
304 struct hid_input *hi)
305 {
306 struct mt_fields *f = td->fields;
307
308 if (f->length >= HID_MAX_FIELDS)
309 return;
310
311 f->usages[f->length++] = usage->hid;
312 }
313
314 static int mt_input_mapping(struct hid_device *hdev, struct hid_input *hi,
315 struct hid_field *field, struct hid_usage *usage,
316 unsigned long **bit, int *max)
317 {
318 struct mt_device *td = hid_get_drvdata(hdev);
319 struct mt_class *cls = &td->mtclass;
320 int code;
321
322 /* Only map fields from TouchScreen or TouchPad collections.
323 * We need to ignore fields that belong to other collections
324 * such as Mouse that might have the same GenericDesktop usages. */
325 if (field->application == HID_DG_TOUCHSCREEN)
326 td->mt_flags |= INPUT_MT_DIRECT;
327 else if (field->application != HID_DG_TOUCHPAD)
328 return 0;
329
330 /*
331 * Model touchscreens providing buttons as touchpads.
332 */
333 if (field->application == HID_DG_TOUCHPAD ||
334 (usage->hid & HID_USAGE_PAGE) == HID_UP_BUTTON)
335 td->mt_flags |= INPUT_MT_POINTER;
336
337 /* eGalax devices provide a Digitizer.Stylus input which overrides
338 * the correct Digitizers.Finger X/Y ranges.
339 * Let's just ignore this input. */
340 if (field->physical == HID_DG_STYLUS)
341 return -1;
342
343 switch (usage->hid & HID_USAGE_PAGE) {
344
345 case HID_UP_GENDESK:
346 switch (usage->hid) {
347 case HID_GD_X:
348 hid_map_usage(hi, usage, bit, max,
349 EV_ABS, ABS_MT_POSITION_X);
350 set_abs(hi->input, ABS_MT_POSITION_X, field,
351 cls->sn_move);
352 mt_store_field(usage, td, hi);
353 td->last_field_index = field->index;
354 return 1;
355 case HID_GD_Y:
356 hid_map_usage(hi, usage, bit, max,
357 EV_ABS, ABS_MT_POSITION_Y);
358 set_abs(hi->input, ABS_MT_POSITION_Y, field,
359 cls->sn_move);
360 mt_store_field(usage, td, hi);
361 td->last_field_index = field->index;
362 return 1;
363 }
364 return 0;
365
366 case HID_UP_DIGITIZER:
367 switch (usage->hid) {
368 case HID_DG_INRANGE:
369 mt_store_field(usage, td, hi);
370 td->last_field_index = field->index;
371 return 1;
372 case HID_DG_CONFIDENCE:
373 mt_store_field(usage, td, hi);
374 td->last_field_index = field->index;
375 return 1;
376 case HID_DG_TIPSWITCH:
377 hid_map_usage(hi, usage, bit, max, EV_KEY, BTN_TOUCH);
378 input_set_capability(hi->input, EV_KEY, BTN_TOUCH);
379 mt_store_field(usage, td, hi);
380 td->last_field_index = field->index;
381 return 1;
382 case HID_DG_CONTACTID:
383 mt_store_field(usage, td, hi);
384 td->last_field_index = field->index;
385 td->touches_by_report++;
386 return 1;
387 case HID_DG_WIDTH:
388 hid_map_usage(hi, usage, bit, max,
389 EV_ABS, ABS_MT_TOUCH_MAJOR);
390 if (!(cls->quirks & MT_QUIRK_NO_AREA))
391 set_abs(hi->input, ABS_MT_TOUCH_MAJOR, field,
392 cls->sn_width);
393 mt_store_field(usage, td, hi);
394 td->last_field_index = field->index;
395 return 1;
396 case HID_DG_HEIGHT:
397 hid_map_usage(hi, usage, bit, max,
398 EV_ABS, ABS_MT_TOUCH_MINOR);
399 if (!(cls->quirks & MT_QUIRK_NO_AREA)) {
400 set_abs(hi->input, ABS_MT_TOUCH_MINOR, field,
401 cls->sn_height);
402 input_set_abs_params(hi->input,
403 ABS_MT_ORIENTATION, 0, 1, 0, 0);
404 }
405 mt_store_field(usage, td, hi);
406 td->last_field_index = field->index;
407 return 1;
408 case HID_DG_TIPPRESSURE:
409 hid_map_usage(hi, usage, bit, max,
410 EV_ABS, ABS_MT_PRESSURE);
411 set_abs(hi->input, ABS_MT_PRESSURE, field,
412 cls->sn_pressure);
413 mt_store_field(usage, td, hi);
414 td->last_field_index = field->index;
415 return 1;
416 case HID_DG_CONTACTCOUNT:
417 td->last_field_index = field->index;
418 return 1;
419 case HID_DG_CONTACTMAX:
420 /* we don't set td->last_slot_field as contactcount and
421 * contact max are global to the report */
422 td->last_field_index = field->index;
423 return -1;
424 }
425 case HID_DG_TOUCH:
426 /* Legacy devices use TIPSWITCH and not TOUCH.
427 * Let's just ignore this field. */
428 return -1;
429 /* let hid-input decide for the others */
430 return 0;
431
432 case HID_UP_BUTTON:
433 code = BTN_MOUSE + ((usage->hid - 1) & HID_USAGE);
434 hid_map_usage(hi, usage, bit, max, EV_KEY, code);
435 input_set_capability(hi->input, EV_KEY, code);
436 return 1;
437
438 case 0xff000000:
439 /* we do not want to map these: no input-oriented meaning */
440 return -1;
441 }
442
443 return 0;
444 }
445
446 static int mt_input_mapped(struct hid_device *hdev, struct hid_input *hi,
447 struct hid_field *field, struct hid_usage *usage,
448 unsigned long **bit, int *max)
449 {
450 if (usage->type == EV_KEY || usage->type == EV_ABS)
451 set_bit(usage->type, hi->input->evbit);
452
453 return -1;
454 }
455
456 static int mt_compute_slot(struct mt_device *td, struct input_dev *input)
457 {
458 __s32 quirks = td->mtclass.quirks;
459
460 if (quirks & MT_QUIRK_SLOT_IS_CONTACTID)
461 return td->curdata.contactid;
462
463 if (quirks & MT_QUIRK_CYPRESS)
464 return cypress_compute_slot(td);
465
466 if (quirks & MT_QUIRK_SLOT_IS_CONTACTNUMBER)
467 return td->num_received;
468
469 if (quirks & MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE)
470 return td->curdata.contactid - 1;
471
472 return input_mt_get_slot_by_key(input, td->curdata.contactid);
473 }
474
475 /*
476 * this function is called when a whole contact has been processed,
477 * so that it can assign it to a slot and store the data there
478 */
479 static void mt_complete_slot(struct mt_device *td, struct input_dev *input)
480 {
481 if (td->curvalid) {
482 int slotnum = mt_compute_slot(td, input);
483 struct mt_slot *s = &td->curdata;
484
485 if (slotnum < 0 || slotnum >= td->maxcontacts)
486 return;
487
488 input_mt_slot(input, slotnum);
489 input_mt_report_slot_state(input, MT_TOOL_FINGER,
490 s->touch_state);
491 if (s->touch_state) {
492 /* this finger is on the screen */
493 int wide = (s->w > s->h);
494 /* divided by two to match visual scale of touch */
495 int major = max(s->w, s->h) >> 1;
496 int minor = min(s->w, s->h) >> 1;
497
498 input_event(input, EV_ABS, ABS_MT_POSITION_X, s->x);
499 input_event(input, EV_ABS, ABS_MT_POSITION_Y, s->y);
500 input_event(input, EV_ABS, ABS_MT_ORIENTATION, wide);
501 input_event(input, EV_ABS, ABS_MT_PRESSURE, s->p);
502 input_event(input, EV_ABS, ABS_MT_TOUCH_MAJOR, major);
503 input_event(input, EV_ABS, ABS_MT_TOUCH_MINOR, minor);
504 }
505 }
506
507 td->num_received++;
508 }
509
510 /*
511 * this function is called when a whole packet has been received and processed,
512 * so that it can decide what to send to the input layer.
513 */
514 static void mt_sync_frame(struct mt_device *td, struct input_dev *input)
515 {
516 input_mt_sync_frame(input);
517 input_sync(input);
518 td->num_received = 0;
519 }
520
521 static int mt_event(struct hid_device *hid, struct hid_field *field,
522 struct hid_usage *usage, __s32 value)
523 {
524 struct mt_device *td = hid_get_drvdata(hid);
525 __s32 quirks = td->mtclass.quirks;
526
527 if (hid->claimed & HID_CLAIMED_INPUT) {
528 switch (usage->hid) {
529 case HID_DG_INRANGE:
530 if (quirks & MT_QUIRK_ALWAYS_VALID)
531 td->curvalid = true;
532 else if (quirks & MT_QUIRK_VALID_IS_INRANGE)
533 td->curvalid = value;
534 break;
535 case HID_DG_TIPSWITCH:
536 if (quirks & MT_QUIRK_NOT_SEEN_MEANS_UP)
537 td->curvalid = value;
538 td->curdata.touch_state = value;
539 break;
540 case HID_DG_CONFIDENCE:
541 if (quirks & MT_QUIRK_VALID_IS_CONFIDENCE)
542 td->curvalid = value;
543 break;
544 case HID_DG_CONTACTID:
545 td->curdata.contactid = value;
546 break;
547 case HID_DG_TIPPRESSURE:
548 td->curdata.p = value;
549 break;
550 case HID_GD_X:
551 td->curdata.x = value;
552 break;
553 case HID_GD_Y:
554 td->curdata.y = value;
555 break;
556 case HID_DG_WIDTH:
557 td->curdata.w = value;
558 break;
559 case HID_DG_HEIGHT:
560 td->curdata.h = value;
561 break;
562 case HID_DG_CONTACTCOUNT:
563 /*
564 * Includes multi-packet support where subsequent
565 * packets are sent with zero contactcount.
566 */
567 if (value)
568 td->num_expected = value;
569 break;
570 case HID_DG_TOUCH:
571 /* do nothing */
572 break;
573
574 default:
575 /* fallback to the generic hidinput handling */
576 return 0;
577 }
578
579 if (usage->hid == td->last_slot_field)
580 mt_complete_slot(td, field->hidinput->input);
581
582 if (field->index == td->last_field_index
583 && td->num_received >= td->num_expected)
584 mt_sync_frame(td, field->hidinput->input);
585
586 }
587
588 /* we have handled the hidinput part, now remains hiddev */
589 if (hid->claimed & HID_CLAIMED_HIDDEV && hid->hiddev_hid_event)
590 hid->hiddev_hid_event(hid, field, usage, value);
591
592 return 1;
593 }
594
595 static void mt_set_input_mode(struct hid_device *hdev)
596 {
597 struct mt_device *td = hid_get_drvdata(hdev);
598 struct hid_report *r;
599 struct hid_report_enum *re;
600
601 if (td->inputmode < 0)
602 return;
603
604 re = &(hdev->report_enum[HID_FEATURE_REPORT]);
605 r = re->report_id_hash[td->inputmode];
606 if (r) {
607 r->field[0]->value[td->inputmode_index] = 0x02;
608 usbhid_submit_report(hdev, r, USB_DIR_OUT);
609 }
610 }
611
612 static void mt_set_maxcontacts(struct hid_device *hdev)
613 {
614 struct mt_device *td = hid_get_drvdata(hdev);
615 struct hid_report *r;
616 struct hid_report_enum *re;
617 int fieldmax, max;
618
619 if (td->maxcontact_report_id < 0)
620 return;
621
622 if (!td->mtclass.maxcontacts)
623 return;
624
625 re = &hdev->report_enum[HID_FEATURE_REPORT];
626 r = re->report_id_hash[td->maxcontact_report_id];
627 if (r) {
628 max = td->mtclass.maxcontacts;
629 fieldmax = r->field[0]->logical_maximum;
630 max = min(fieldmax, max);
631 if (r->field[0]->value[0] != max) {
632 r->field[0]->value[0] = max;
633 usbhid_submit_report(hdev, r, USB_DIR_OUT);
634 }
635 }
636 }
637
638 static void mt_post_parse_default_settings(struct mt_device *td)
639 {
640 __s32 quirks = td->mtclass.quirks;
641
642 /* unknown serial device needs special quirks */
643 if (td->touches_by_report == 1) {
644 quirks |= MT_QUIRK_ALWAYS_VALID;
645 quirks &= ~MT_QUIRK_NOT_SEEN_MEANS_UP;
646 quirks &= ~MT_QUIRK_VALID_IS_INRANGE;
647 quirks &= ~MT_QUIRK_VALID_IS_CONFIDENCE;
648 }
649
650 td->mtclass.quirks = quirks;
651 }
652
653 static void mt_post_parse(struct mt_device *td)
654 {
655 struct mt_fields *f = td->fields;
656
657 if (td->touches_by_report > 0) {
658 int field_count_per_touch = f->length / td->touches_by_report;
659 td->last_slot_field = f->usages[field_count_per_touch - 1];
660 }
661 }
662
663 static void mt_input_configured(struct hid_device *hdev, struct hid_input *hi)
664
665 {
666 struct mt_device *td = hid_get_drvdata(hdev);
667 struct mt_class *cls = &td->mtclass;
668 struct input_dev *input = hi->input;
669
670 /* Only initialize slots for MT input devices */
671 if (!test_bit(ABS_MT_POSITION_X, input->absbit))
672 return;
673
674 if (!td->maxcontacts)
675 td->maxcontacts = MT_DEFAULT_MAXCONTACT;
676
677 mt_post_parse(td);
678 if (td->serial_maybe)
679 mt_post_parse_default_settings(td);
680
681 if (cls->is_indirect)
682 td->mt_flags |= INPUT_MT_POINTER;
683
684 if (cls->quirks & MT_QUIRK_NOT_SEEN_MEANS_UP)
685 td->mt_flags |= INPUT_MT_DROP_UNUSED;
686
687 input_mt_init_slots(input, td->maxcontacts, td->mt_flags);
688
689 td->mt_flags = 0;
690 }
691
692 static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id)
693 {
694 int ret, i;
695 struct mt_device *td;
696 struct mt_class *mtclass = mt_classes; /* MT_CLS_DEFAULT */
697
698 for (i = 0; mt_classes[i].name ; i++) {
699 if (id->driver_data == mt_classes[i].name) {
700 mtclass = &(mt_classes[i]);
701 break;
702 }
703 }
704
705 /* This allows the driver to correctly support devices
706 * that emit events over several HID messages.
707 */
708 hdev->quirks |= HID_QUIRK_NO_INPUT_SYNC;
709
710 td = kzalloc(sizeof(struct mt_device), GFP_KERNEL);
711 if (!td) {
712 dev_err(&hdev->dev, "cannot allocate multitouch data\n");
713 return -ENOMEM;
714 }
715 td->mtclass = *mtclass;
716 td->inputmode = -1;
717 td->maxcontact_report_id = -1;
718 hid_set_drvdata(hdev, td);
719
720 td->fields = kzalloc(sizeof(struct mt_fields), GFP_KERNEL);
721 if (!td->fields) {
722 dev_err(&hdev->dev, "cannot allocate multitouch fields data\n");
723 ret = -ENOMEM;
724 goto fail;
725 }
726
727 if (id->vendor == HID_ANY_ID && id->product == HID_ANY_ID)
728 td->serial_maybe = true;
729
730 ret = hid_parse(hdev);
731 if (ret != 0)
732 goto fail;
733
734 ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
735 if (ret)
736 goto fail;
737
738 ret = sysfs_create_group(&hdev->dev.kobj, &mt_attribute_group);
739
740 mt_set_maxcontacts(hdev);
741 mt_set_input_mode(hdev);
742
743 kfree(td->fields);
744 td->fields = NULL;
745
746 return 0;
747
748 fail:
749 kfree(td->fields);
750 kfree(td);
751 return ret;
752 }
753
754 #ifdef CONFIG_PM
755 static int mt_reset_resume(struct hid_device *hdev)
756 {
757 mt_set_maxcontacts(hdev);
758 mt_set_input_mode(hdev);
759 return 0;
760 }
761
762 static int mt_resume(struct hid_device *hdev)
763 {
764 struct usb_interface *intf;
765 struct usb_host_interface *interface;
766 struct usb_device *dev;
767
768 if (hdev->bus != BUS_USB)
769 return 0;
770
771 intf = to_usb_interface(hdev->dev.parent);
772 interface = intf->cur_altsetting;
773 dev = hid_to_usb_dev(hdev);
774
775 /* Some Elan legacy devices require SET_IDLE to be set on resume.
776 * It should be safe to send it to other devices too.
777 * Tested on 3M, Stantum, Cypress, Zytronic, eGalax, and Elan panels. */
778
779 usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
780 HID_REQ_SET_IDLE,
781 USB_TYPE_CLASS | USB_RECIP_INTERFACE,
782 0, interface->desc.bInterfaceNumber,
783 NULL, 0, USB_CTRL_SET_TIMEOUT);
784
785 return 0;
786 }
787 #endif
788
789 static void mt_remove(struct hid_device *hdev)
790 {
791 struct mt_device *td = hid_get_drvdata(hdev);
792 sysfs_remove_group(&hdev->dev.kobj, &mt_attribute_group);
793 hid_hw_stop(hdev);
794 kfree(td);
795 hid_set_drvdata(hdev, NULL);
796 }
797
798 static const struct hid_device_id mt_devices[] = {
799
800 /* 3M panels */
801 { .driver_data = MT_CLS_3M,
802 MT_USB_DEVICE(USB_VENDOR_ID_3M,
803 USB_DEVICE_ID_3M1968) },
804 { .driver_data = MT_CLS_3M,
805 MT_USB_DEVICE(USB_VENDOR_ID_3M,
806 USB_DEVICE_ID_3M2256) },
807 { .driver_data = MT_CLS_3M,
808 MT_USB_DEVICE(USB_VENDOR_ID_3M,
809 USB_DEVICE_ID_3M3266) },
810
811 /* ActionStar panels */
812 { .driver_data = MT_CLS_DEFAULT,
813 MT_USB_DEVICE(USB_VENDOR_ID_ACTIONSTAR,
814 USB_DEVICE_ID_ACTIONSTAR_1011) },
815
816 /* Atmel panels */
817 { .driver_data = MT_CLS_SERIAL,
818 MT_USB_DEVICE(USB_VENDOR_ID_ATMEL,
819 USB_DEVICE_ID_ATMEL_MULTITOUCH) },
820 { .driver_data = MT_CLS_SERIAL,
821 MT_USB_DEVICE(USB_VENDOR_ID_ATMEL,
822 USB_DEVICE_ID_ATMEL_MXT_DIGITIZER) },
823
824 /* Baanto multitouch devices */
825 { .driver_data = MT_CLS_DEFAULT,
826 MT_USB_DEVICE(USB_VENDOR_ID_BAANTO,
827 USB_DEVICE_ID_BAANTO_MT_190W2) },
828 /* Cando panels */
829 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
830 MT_USB_DEVICE(USB_VENDOR_ID_CANDO,
831 USB_DEVICE_ID_CANDO_MULTI_TOUCH) },
832 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
833 MT_USB_DEVICE(USB_VENDOR_ID_CANDO,
834 USB_DEVICE_ID_CANDO_MULTI_TOUCH_10_1) },
835 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
836 MT_USB_DEVICE(USB_VENDOR_ID_CANDO,
837 USB_DEVICE_ID_CANDO_MULTI_TOUCH_11_6) },
838 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
839 MT_USB_DEVICE(USB_VENDOR_ID_CANDO,
840 USB_DEVICE_ID_CANDO_MULTI_TOUCH_15_6) },
841
842 /* Chunghwa Telecom touch panels */
843 { .driver_data = MT_CLS_DEFAULT,
844 MT_USB_DEVICE(USB_VENDOR_ID_CHUNGHWAT,
845 USB_DEVICE_ID_CHUNGHWAT_MULTITOUCH) },
846
847 /* CVTouch panels */
848 { .driver_data = MT_CLS_DEFAULT,
849 MT_USB_DEVICE(USB_VENDOR_ID_CVTOUCH,
850 USB_DEVICE_ID_CVTOUCH_SCREEN) },
851
852 /* Cypress panel */
853 { .driver_data = MT_CLS_CYPRESS,
854 HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS,
855 USB_DEVICE_ID_CYPRESS_TRUETOUCH) },
856
857 /* eGalax devices (resistive) */
858 { .driver_data = MT_CLS_EGALAX,
859 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
860 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_480D) },
861 { .driver_data = MT_CLS_EGALAX,
862 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
863 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_480E) },
864
865 /* eGalax devices (capacitive) */
866 { .driver_data = MT_CLS_EGALAX,
867 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
868 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_720C) },
869 { .driver_data = MT_CLS_EGALAX_SERIAL,
870 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
871 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7207) },
872 { .driver_data = MT_CLS_EGALAX_SERIAL,
873 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
874 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_725E) },
875 { .driver_data = MT_CLS_EGALAX_SERIAL,
876 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
877 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7224) },
878 { .driver_data = MT_CLS_EGALAX_SERIAL,
879 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
880 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_722A) },
881 { .driver_data = MT_CLS_EGALAX,
882 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
883 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_726B) },
884 { .driver_data = MT_CLS_EGALAX_SERIAL,
885 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
886 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7262) },
887 { .driver_data = MT_CLS_EGALAX,
888 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
889 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72A1) },
890 { .driver_data = MT_CLS_EGALAX_SERIAL,
891 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
892 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72AA) },
893 { .driver_data = MT_CLS_EGALAX,
894 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
895 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72FA) },
896 { .driver_data = MT_CLS_EGALAX,
897 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
898 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7302) },
899 { .driver_data = MT_CLS_EGALAX_SERIAL,
900 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
901 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7349) },
902 { .driver_data = MT_CLS_EGALAX_SERIAL,
903 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
904 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_73F7) },
905 { .driver_data = MT_CLS_EGALAX_SERIAL,
906 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
907 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_A001) },
908 { .driver_data = MT_CLS_EGALAX,
909 HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
910 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7224) },
911 { .driver_data = MT_CLS_EGALAX,
912 HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
913 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72D0) },
914 { .driver_data = MT_CLS_EGALAX,
915 HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
916 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72C4) },
917
918 /* Elo TouchSystems IntelliTouch Plus panel */
919 { .driver_data = MT_CLS_DUAL_NSMU_CONTACTID,
920 MT_USB_DEVICE(USB_VENDOR_ID_ELO,
921 USB_DEVICE_ID_ELO_TS2515) },
922
923 /* Flatfrog Panels */
924 { .driver_data = MT_CLS_FLATFROG,
925 MT_USB_DEVICE(USB_VENDOR_ID_FLATFROG,
926 USB_DEVICE_ID_MULTITOUCH_3200) },
927
928 /* GeneralTouch panel */
929 { .driver_data = MT_CLS_GENERALTOUCH_TWOFINGERS,
930 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
931 USB_DEVICE_ID_GENERAL_TOUCH_WIN7_TWOFINGERS) },
932 { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
933 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
934 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PWT_TENFINGERS) },
935
936 /* Gametel game controller */
937 { .driver_data = MT_CLS_DEFAULT,
938 MT_BT_DEVICE(USB_VENDOR_ID_FRUCTEL,
939 USB_DEVICE_ID_GAMETEL_MT_MODE) },
940
941 /* GoodTouch panels */
942 { .driver_data = MT_CLS_DEFAULT,
943 MT_USB_DEVICE(USB_VENDOR_ID_GOODTOUCH,
944 USB_DEVICE_ID_GOODTOUCH_000f) },
945
946 /* Hanvon panels */
947 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID,
948 MT_USB_DEVICE(USB_VENDOR_ID_HANVON_ALT,
949 USB_DEVICE_ID_HANVON_ALT_MULTITOUCH) },
950
951 /* Ideacom panel */
952 { .driver_data = MT_CLS_SERIAL,
953 MT_USB_DEVICE(USB_VENDOR_ID_IDEACOM,
954 USB_DEVICE_ID_IDEACOM_IDC6650) },
955 { .driver_data = MT_CLS_SERIAL,
956 MT_USB_DEVICE(USB_VENDOR_ID_IDEACOM,
957 USB_DEVICE_ID_IDEACOM_IDC6651) },
958
959 /* Ilitek dual touch panel */
960 { .driver_data = MT_CLS_DEFAULT,
961 MT_USB_DEVICE(USB_VENDOR_ID_ILITEK,
962 USB_DEVICE_ID_ILITEK_MULTITOUCH) },
963
964 /* IRTOUCH panels */
965 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID,
966 MT_USB_DEVICE(USB_VENDOR_ID_IRTOUCHSYSTEMS,
967 USB_DEVICE_ID_IRTOUCH_INFRARED_USB) },
968
969 /* LG Display panels */
970 { .driver_data = MT_CLS_DEFAULT,
971 MT_USB_DEVICE(USB_VENDOR_ID_LG,
972 USB_DEVICE_ID_LG_MULTITOUCH) },
973
974 /* Lumio panels */
975 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
976 MT_USB_DEVICE(USB_VENDOR_ID_LUMIO,
977 USB_DEVICE_ID_CRYSTALTOUCH) },
978 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
979 MT_USB_DEVICE(USB_VENDOR_ID_LUMIO,
980 USB_DEVICE_ID_CRYSTALTOUCH_DUAL) },
981
982 /* MosArt panels */
983 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
984 MT_USB_DEVICE(USB_VENDOR_ID_ASUS,
985 USB_DEVICE_ID_ASUS_T91MT)},
986 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
987 MT_USB_DEVICE(USB_VENDOR_ID_ASUS,
988 USB_DEVICE_ID_ASUSTEK_MULTITOUCH_YFO) },
989 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
990 MT_USB_DEVICE(USB_VENDOR_ID_TURBOX,
991 USB_DEVICE_ID_TURBOX_TOUCHSCREEN_MOSART) },
992
993 /* Panasonic panels */
994 { .driver_data = MT_CLS_PANASONIC,
995 MT_USB_DEVICE(USB_VENDOR_ID_PANASONIC,
996 USB_DEVICE_ID_PANABOARD_UBT780) },
997 { .driver_data = MT_CLS_PANASONIC,
998 MT_USB_DEVICE(USB_VENDOR_ID_PANASONIC,
999 USB_DEVICE_ID_PANABOARD_UBT880) },
1000
1001 /* Novatek Panel */
1002 { .driver_data = MT_CLS_DEFAULT,
1003 MT_USB_DEVICE(USB_VENDOR_ID_NOVATEK,
1004 USB_DEVICE_ID_NOVATEK_PCT) },
1005
1006 /* PenMount panels */
1007 { .driver_data = MT_CLS_CONFIDENCE,
1008 MT_USB_DEVICE(USB_VENDOR_ID_PENMOUNT,
1009 USB_DEVICE_ID_PENMOUNT_PCI) },
1010
1011 /* PixArt optical touch screen */
1012 { .driver_data = MT_CLS_INRANGE_CONTACTNUMBER,
1013 MT_USB_DEVICE(USB_VENDOR_ID_PIXART,
1014 USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN) },
1015 { .driver_data = MT_CLS_INRANGE_CONTACTNUMBER,
1016 MT_USB_DEVICE(USB_VENDOR_ID_PIXART,
1017 USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN1) },
1018 { .driver_data = MT_CLS_INRANGE_CONTACTNUMBER,
1019 MT_USB_DEVICE(USB_VENDOR_ID_PIXART,
1020 USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN2) },
1021
1022 /* PixCir-based panels */
1023 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID,
1024 MT_USB_DEVICE(USB_VENDOR_ID_HANVON,
1025 USB_DEVICE_ID_HANVON_MULTITOUCH) },
1026 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID,
1027 MT_USB_DEVICE(USB_VENDOR_ID_CANDO,
1028 USB_DEVICE_ID_CANDO_PIXCIR_MULTI_TOUCH) },
1029
1030 /* Quanta-based panels */
1031 { .driver_data = MT_CLS_CONFIDENCE_CONTACT_ID,
1032 MT_USB_DEVICE(USB_VENDOR_ID_QUANTA,
1033 USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH) },
1034 { .driver_data = MT_CLS_CONFIDENCE_CONTACT_ID,
1035 MT_USB_DEVICE(USB_VENDOR_ID_QUANTA,
1036 USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3001) },
1037 { .driver_data = MT_CLS_CONFIDENCE_CONTACT_ID,
1038 MT_USB_DEVICE(USB_VENDOR_ID_QUANTA,
1039 USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3008) },
1040
1041 /* Stantum panels */
1042 { .driver_data = MT_CLS_CONFIDENCE,
1043 MT_USB_DEVICE(USB_VENDOR_ID_STANTUM,
1044 USB_DEVICE_ID_MTP)},
1045 { .driver_data = MT_CLS_CONFIDENCE,
1046 MT_USB_DEVICE(USB_VENDOR_ID_STANTUM_STM,
1047 USB_DEVICE_ID_MTP_STM)},
1048 { .driver_data = MT_CLS_CONFIDENCE,
1049 MT_USB_DEVICE(USB_VENDOR_ID_STANTUM_SITRONIX,
1050 USB_DEVICE_ID_MTP_SITRONIX)},
1051
1052 /* TopSeed panels */
1053 { .driver_data = MT_CLS_TOPSEED,
1054 MT_USB_DEVICE(USB_VENDOR_ID_TOPSEED2,
1055 USB_DEVICE_ID_TOPSEED2_PERIPAD_701) },
1056
1057 /* Touch International panels */
1058 { .driver_data = MT_CLS_DEFAULT,
1059 MT_USB_DEVICE(USB_VENDOR_ID_TOUCH_INTL,
1060 USB_DEVICE_ID_TOUCH_INTL_MULTI_TOUCH) },
1061
1062 /* Unitec panels */
1063 { .driver_data = MT_CLS_DEFAULT,
1064 MT_USB_DEVICE(USB_VENDOR_ID_UNITEC,
1065 USB_DEVICE_ID_UNITEC_USB_TOUCH_0709) },
1066 { .driver_data = MT_CLS_DEFAULT,
1067 MT_USB_DEVICE(USB_VENDOR_ID_UNITEC,
1068 USB_DEVICE_ID_UNITEC_USB_TOUCH_0A19) },
1069 /* XAT */
1070 { .driver_data = MT_CLS_DEFAULT,
1071 MT_USB_DEVICE(USB_VENDOR_ID_XAT,
1072 USB_DEVICE_ID_XAT_CSR) },
1073
1074 /* Xiroku */
1075 { .driver_data = MT_CLS_DEFAULT,
1076 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1077 USB_DEVICE_ID_XIROKU_SPX) },
1078 { .driver_data = MT_CLS_DEFAULT,
1079 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1080 USB_DEVICE_ID_XIROKU_MPX) },
1081 { .driver_data = MT_CLS_DEFAULT,
1082 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1083 USB_DEVICE_ID_XIROKU_CSR) },
1084 { .driver_data = MT_CLS_DEFAULT,
1085 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1086 USB_DEVICE_ID_XIROKU_SPX1) },
1087 { .driver_data = MT_CLS_DEFAULT,
1088 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1089 USB_DEVICE_ID_XIROKU_MPX1) },
1090 { .driver_data = MT_CLS_DEFAULT,
1091 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1092 USB_DEVICE_ID_XIROKU_CSR1) },
1093 { .driver_data = MT_CLS_DEFAULT,
1094 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1095 USB_DEVICE_ID_XIROKU_SPX2) },
1096 { .driver_data = MT_CLS_DEFAULT,
1097 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1098 USB_DEVICE_ID_XIROKU_MPX2) },
1099 { .driver_data = MT_CLS_DEFAULT,
1100 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1101 USB_DEVICE_ID_XIROKU_CSR2) },
1102
1103 /* Zytronic panels */
1104 { .driver_data = MT_CLS_SERIAL,
1105 MT_USB_DEVICE(USB_VENDOR_ID_ZYTRONIC,
1106 USB_DEVICE_ID_ZYTRONIC_ZXY100) },
1107
1108 /* Generic MT device */
1109 { HID_DEVICE(HID_BUS_ANY, HID_GROUP_MULTITOUCH, HID_ANY_ID, HID_ANY_ID) },
1110 { }
1111 };
1112 MODULE_DEVICE_TABLE(hid, mt_devices);
1113
1114 static const struct hid_usage_id mt_grabbed_usages[] = {
1115 { HID_ANY_ID, HID_ANY_ID, HID_ANY_ID },
1116 { HID_ANY_ID - 1, HID_ANY_ID - 1, HID_ANY_ID - 1}
1117 };
1118
1119 static struct hid_driver mt_driver = {
1120 .name = "hid-multitouch",
1121 .id_table = mt_devices,
1122 .probe = mt_probe,
1123 .remove = mt_remove,
1124 .input_mapping = mt_input_mapping,
1125 .input_mapped = mt_input_mapped,
1126 .input_configured = mt_input_configured,
1127 .feature_mapping = mt_feature_mapping,
1128 .usage_table = mt_grabbed_usages,
1129 .event = mt_event,
1130 #ifdef CONFIG_PM
1131 .reset_resume = mt_reset_resume,
1132 .resume = mt_resume,
1133 #endif
1134 };
1135
1136 static int __init mt_init(void)
1137 {
1138 return hid_register_driver(&mt_driver);
1139 }
1140
1141 static void __exit mt_exit(void)
1142 {
1143 hid_unregister_driver(&mt_driver);
1144 }
1145
1146 module_init(mt_init);
1147 module_exit(mt_exit);
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