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net/ps3_gelic_net: remove __dev* attributes
[linux-2.6.git] / drivers / hid / hid-multitouch.c
blob7867d69f0efe1cd734c57e7e4627eb9aaf7a367e
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 },
215
216 { .name = MT_CLS_FLATFROG,
217 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP |
218 MT_QUIRK_NO_AREA,
219 .sn_move = 2048,
220 .maxcontacts = 40,
221 },
222 { }
223 };
224
225 static ssize_t mt_show_quirks(struct device *dev,
226 struct device_attribute *attr,
227 char *buf)
228 {
229 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
230 struct mt_device *td = hid_get_drvdata(hdev);
231
232 return sprintf(buf, "%u\n", td->mtclass.quirks);
233 }
234
235 static ssize_t mt_set_quirks(struct device *dev,
236 struct device_attribute *attr,
237 const char *buf, size_t count)
238 {
239 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
240 struct mt_device *td = hid_get_drvdata(hdev);
241
242 unsigned long val;
243
244 if (kstrtoul(buf, 0, &val))
245 return -EINVAL;
246
247 td->mtclass.quirks = val;
248
249 return count;
250 }
251
252 static DEVICE_ATTR(quirks, S_IWUSR | S_IRUGO, mt_show_quirks, mt_set_quirks);
253
254 static struct attribute *sysfs_attrs[] = {
255 &dev_attr_quirks.attr,
256 NULL
257 };
258
259 static struct attribute_group mt_attribute_group = {
260 .attrs = sysfs_attrs
261 };
262
263 static void mt_feature_mapping(struct hid_device *hdev,
264 struct hid_field *field, struct hid_usage *usage)
265 {
266 struct mt_device *td = hid_get_drvdata(hdev);
267 int i;
268
269 switch (usage->hid) {
270 case HID_DG_INPUTMODE:
271 td->inputmode = field->report->id;
272 td->inputmode_index = 0; /* has to be updated below */
273
274 for (i=0; i < field->maxusage; i++) {
275 if (field->usage[i].hid == usage->hid) {
276 td->inputmode_index = i;
277 break;
278 }
279 }
280
281 break;
282 case HID_DG_CONTACTMAX:
283 td->maxcontact_report_id = field->report->id;
284 td->maxcontacts = field->value[0];
285 if (td->mtclass.maxcontacts)
286 /* check if the maxcontacts is given by the class */
287 td->maxcontacts = td->mtclass.maxcontacts;
288
289 break;
290 }
291 }
292
293 static void set_abs(struct input_dev *input, unsigned int code,
294 struct hid_field *field, int snratio)
295 {
296 int fmin = field->logical_minimum;
297 int fmax = field->logical_maximum;
298 int fuzz = snratio ? (fmax - fmin) / snratio : 0;
299 input_set_abs_params(input, code, fmin, fmax, fuzz, 0);
300 }
301
302 static void mt_store_field(struct hid_usage *usage, struct mt_device *td,
303 struct hid_input *hi)
304 {
305 struct mt_fields *f = td->fields;
306
307 if (f->length >= HID_MAX_FIELDS)
308 return;
309
310 f->usages[f->length++] = usage->hid;
311 }
312
313 static int mt_input_mapping(struct hid_device *hdev, struct hid_input *hi,
314 struct hid_field *field, struct hid_usage *usage,
315 unsigned long **bit, int *max)
316 {
317 struct mt_device *td = hid_get_drvdata(hdev);
318 struct mt_class *cls = &td->mtclass;
319 int code;
320
321 /* Only map fields from TouchScreen or TouchPad collections.
322 * We need to ignore fields that belong to other collections
323 * such as Mouse that might have the same GenericDesktop usages. */
324 if (field->application == HID_DG_TOUCHSCREEN)
325 td->mt_flags |= INPUT_MT_DIRECT;
326 else if (field->application != HID_DG_TOUCHPAD)
327 return 0;
328
329 /*
330 * Model touchscreens providing buttons as touchpads.
331 */
332 if (field->application == HID_DG_TOUCHPAD ||
333 (usage->hid & HID_USAGE_PAGE) == HID_UP_BUTTON)
334 td->mt_flags |= INPUT_MT_POINTER;
335
336 /* eGalax devices provide a Digitizer.Stylus input which overrides
337 * the correct Digitizers.Finger X/Y ranges.
338 * Let's just ignore this input. */
339 if (field->physical == HID_DG_STYLUS)
340 return -1;
341
342 switch (usage->hid & HID_USAGE_PAGE) {
343
344 case HID_UP_GENDESK:
345 switch (usage->hid) {
346 case HID_GD_X:
347 hid_map_usage(hi, usage, bit, max,
348 EV_ABS, ABS_MT_POSITION_X);
349 set_abs(hi->input, ABS_MT_POSITION_X, field,
350 cls->sn_move);
351 mt_store_field(usage, td, hi);
352 td->last_field_index = field->index;
353 return 1;
354 case HID_GD_Y:
355 hid_map_usage(hi, usage, bit, max,
356 EV_ABS, ABS_MT_POSITION_Y);
357 set_abs(hi->input, ABS_MT_POSITION_Y, field,
358 cls->sn_move);
359 mt_store_field(usage, td, hi);
360 td->last_field_index = field->index;
361 return 1;
362 }
363 return 0;
364
365 case HID_UP_DIGITIZER:
366 switch (usage->hid) {
367 case HID_DG_INRANGE:
368 mt_store_field(usage, td, hi);
369 td->last_field_index = field->index;
370 return 1;
371 case HID_DG_CONFIDENCE:
372 mt_store_field(usage, td, hi);
373 td->last_field_index = field->index;
374 return 1;
375 case HID_DG_TIPSWITCH:
376 hid_map_usage(hi, usage, bit, max, EV_KEY, BTN_TOUCH);
377 input_set_capability(hi->input, EV_KEY, BTN_TOUCH);
378 mt_store_field(usage, td, hi);
379 td->last_field_index = field->index;
380 return 1;
381 case HID_DG_CONTACTID:
382 mt_store_field(usage, td, hi);
383 td->last_field_index = field->index;
384 td->touches_by_report++;
385 return 1;
386 case HID_DG_WIDTH:
387 hid_map_usage(hi, usage, bit, max,
388 EV_ABS, ABS_MT_TOUCH_MAJOR);
389 if (!(cls->quirks & MT_QUIRK_NO_AREA))
390 set_abs(hi->input, ABS_MT_TOUCH_MAJOR, field,
391 cls->sn_width);
392 mt_store_field(usage, td, hi);
393 td->last_field_index = field->index;
394 return 1;
395 case HID_DG_HEIGHT:
396 hid_map_usage(hi, usage, bit, max,
397 EV_ABS, ABS_MT_TOUCH_MINOR);
398 if (!(cls->quirks & MT_QUIRK_NO_AREA)) {
399 set_abs(hi->input, ABS_MT_TOUCH_MINOR, field,
400 cls->sn_height);
401 input_set_abs_params(hi->input,
402 ABS_MT_ORIENTATION, 0, 1, 0, 0);
403 }
404 mt_store_field(usage, td, hi);
405 td->last_field_index = field->index;
406 return 1;
407 case HID_DG_TIPPRESSURE:
408 hid_map_usage(hi, usage, bit, max,
409 EV_ABS, ABS_MT_PRESSURE);
410 set_abs(hi->input, ABS_MT_PRESSURE, field,
411 cls->sn_pressure);
412 mt_store_field(usage, td, hi);
413 td->last_field_index = field->index;
414 return 1;
415 case HID_DG_CONTACTCOUNT:
416 td->last_field_index = field->index;
417 return 1;
418 case HID_DG_CONTACTMAX:
419 /* we don't set td->last_slot_field as contactcount and
420 * contact max are global to the report */
421 td->last_field_index = field->index;
422 return -1;
423 case HID_DG_TOUCH:
424 /* Legacy devices use TIPSWITCH and not TOUCH.
425 * Let's just ignore this field. */
426 return -1;
427 }
428 /* let hid-input decide for the others */
429 return 0;
430
431 case HID_UP_BUTTON:
432 code = BTN_MOUSE + ((usage->hid - 1) & HID_USAGE);
433 hid_map_usage(hi, usage, bit, max, EV_KEY, code);
434 input_set_capability(hi->input, EV_KEY, code);
435 return 1;
436
437 case 0xff000000:
438 /* we do not want to map these: no input-oriented meaning */
439 return -1;
440 }
441
442 return 0;
443 }
444
445 static int mt_input_mapped(struct hid_device *hdev, struct hid_input *hi,
446 struct hid_field *field, struct hid_usage *usage,
447 unsigned long **bit, int *max)
448 {
449 if (usage->type == EV_KEY || usage->type == EV_ABS)
450 set_bit(usage->type, hi->input->evbit);
451
452 return -1;
453 }
454
455 static int mt_compute_slot(struct mt_device *td, struct input_dev *input)
456 {
457 __s32 quirks = td->mtclass.quirks;
458
459 if (quirks & MT_QUIRK_SLOT_IS_CONTACTID)
460 return td->curdata.contactid;
461
462 if (quirks & MT_QUIRK_CYPRESS)
463 return cypress_compute_slot(td);
464
465 if (quirks & MT_QUIRK_SLOT_IS_CONTACTNUMBER)
466 return td->num_received;
467
468 if (quirks & MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE)
469 return td->curdata.contactid - 1;
470
471 return input_mt_get_slot_by_key(input, td->curdata.contactid);
472 }
473
474 /*
475 * this function is called when a whole contact has been processed,
476 * so that it can assign it to a slot and store the data there
477 */
478 static void mt_complete_slot(struct mt_device *td, struct input_dev *input)
479 {
480 if (td->curvalid) {
481 int slotnum = mt_compute_slot(td, input);
482 struct mt_slot *s = &td->curdata;
483
484 if (slotnum < 0 || slotnum >= td->maxcontacts)
485 return;
486
487 input_mt_slot(input, slotnum);
488 input_mt_report_slot_state(input, MT_TOOL_FINGER,
489 s->touch_state);
490 if (s->touch_state) {
491 /* this finger is on the screen */
492 int wide = (s->w > s->h);
493 /* divided by two to match visual scale of touch */
494 int major = max(s->w, s->h) >> 1;
495 int minor = min(s->w, s->h) >> 1;
496
497 input_event(input, EV_ABS, ABS_MT_POSITION_X, s->x);
498 input_event(input, EV_ABS, ABS_MT_POSITION_Y, s->y);
499 input_event(input, EV_ABS, ABS_MT_ORIENTATION, wide);
500 input_event(input, EV_ABS, ABS_MT_PRESSURE, s->p);
501 input_event(input, EV_ABS, ABS_MT_TOUCH_MAJOR, major);
502 input_event(input, EV_ABS, ABS_MT_TOUCH_MINOR, minor);
503 }
504 }
505
506 td->num_received++;
507 }
508
509 /*
510 * this function is called when a whole packet has been received and processed,
511 * so that it can decide what to send to the input layer.
512 */
513 static void mt_sync_frame(struct mt_device *td, struct input_dev *input)
514 {
515 input_mt_sync_frame(input);
516 input_sync(input);
517 td->num_received = 0;
518 }
519
520 static int mt_event(struct hid_device *hid, struct hid_field *field,
521 struct hid_usage *usage, __s32 value)
522 {
523 struct mt_device *td = hid_get_drvdata(hid);
524 __s32 quirks = td->mtclass.quirks;
525
526 if (hid->claimed & HID_CLAIMED_INPUT) {
527 switch (usage->hid) {
528 case HID_DG_INRANGE:
529 if (quirks & MT_QUIRK_ALWAYS_VALID)
530 td->curvalid = true;
531 else if (quirks & MT_QUIRK_VALID_IS_INRANGE)
532 td->curvalid = value;
533 break;
534 case HID_DG_TIPSWITCH:
535 if (quirks & MT_QUIRK_NOT_SEEN_MEANS_UP)
536 td->curvalid = value;
537 td->curdata.touch_state = value;
538 break;
539 case HID_DG_CONFIDENCE:
540 if (quirks & MT_QUIRK_VALID_IS_CONFIDENCE)
541 td->curvalid = value;
542 break;
543 case HID_DG_CONTACTID:
544 td->curdata.contactid = value;
545 break;
546 case HID_DG_TIPPRESSURE:
547 td->curdata.p = value;
548 break;
549 case HID_GD_X:
550 td->curdata.x = value;
551 break;
552 case HID_GD_Y:
553 td->curdata.y = value;
554 break;
555 case HID_DG_WIDTH:
556 td->curdata.w = value;
557 break;
558 case HID_DG_HEIGHT:
559 td->curdata.h = value;
560 break;
561 case HID_DG_CONTACTCOUNT:
562 /*
563 * Includes multi-packet support where subsequent
564 * packets are sent with zero contactcount.
565 */
566 if (value)
567 td->num_expected = value;
568 break;
569 case HID_DG_TOUCH:
570 /* do nothing */
571 break;
572
573 default:
574 /* fallback to the generic hidinput handling */
575 return 0;
576 }
577
578 if (usage->hid == td->last_slot_field)
579 mt_complete_slot(td, field->hidinput->input);
580
581 if (field->index == td->last_field_index
582 && td->num_received >= td->num_expected)
583 mt_sync_frame(td, field->hidinput->input);
584
585 }
586
587 /* we have handled the hidinput part, now remains hiddev */
588 if (hid->claimed & HID_CLAIMED_HIDDEV && hid->hiddev_hid_event)
589 hid->hiddev_hid_event(hid, field, usage, value);
590
591 return 1;
592 }
593
594 static void mt_set_input_mode(struct hid_device *hdev)
595 {
596 struct mt_device *td = hid_get_drvdata(hdev);
597 struct hid_report *r;
598 struct hid_report_enum *re;
599
600 if (td->inputmode < 0)
601 return;
602
603 re = &(hdev->report_enum[HID_FEATURE_REPORT]);
604 r = re->report_id_hash[td->inputmode];
605 if (r) {
606 r->field[0]->value[td->inputmode_index] = 0x02;
607 usbhid_submit_report(hdev, r, USB_DIR_OUT);
608 }
609 }
610
611 static void mt_set_maxcontacts(struct hid_device *hdev)
612 {
613 struct mt_device *td = hid_get_drvdata(hdev);
614 struct hid_report *r;
615 struct hid_report_enum *re;
616 int fieldmax, max;
617
618 if (td->maxcontact_report_id < 0)
619 return;
620
621 if (!td->mtclass.maxcontacts)
622 return;
623
624 re = &hdev->report_enum[HID_FEATURE_REPORT];
625 r = re->report_id_hash[td->maxcontact_report_id];
626 if (r) {
627 max = td->mtclass.maxcontacts;
628 fieldmax = r->field[0]->logical_maximum;
629 max = min(fieldmax, max);
630 if (r->field[0]->value[0] != max) {
631 r->field[0]->value[0] = max;
632 usbhid_submit_report(hdev, r, USB_DIR_OUT);
633 }
634 }
635 }
636
637 static void mt_post_parse_default_settings(struct mt_device *td)
638 {
639 __s32 quirks = td->mtclass.quirks;
640
641 /* unknown serial device needs special quirks */
642 if (td->touches_by_report == 1) {
643 quirks |= MT_QUIRK_ALWAYS_VALID;
644 quirks &= ~MT_QUIRK_NOT_SEEN_MEANS_UP;
645 quirks &= ~MT_QUIRK_VALID_IS_INRANGE;
646 quirks &= ~MT_QUIRK_VALID_IS_CONFIDENCE;
647 }
648
649 td->mtclass.quirks = quirks;
650 }
651
652 static void mt_post_parse(struct mt_device *td)
653 {
654 struct mt_fields *f = td->fields;
655
656 if (td->touches_by_report > 0) {
657 int field_count_per_touch = f->length / td->touches_by_report;
658 td->last_slot_field = f->usages[field_count_per_touch - 1];
659 }
660 }
661
662 static void mt_input_configured(struct hid_device *hdev, struct hid_input *hi)
663
664 {
665 struct mt_device *td = hid_get_drvdata(hdev);
666 struct mt_class *cls = &td->mtclass;
667 struct input_dev *input = hi->input;
668
669 /* Only initialize slots for MT input devices */
670 if (!test_bit(ABS_MT_POSITION_X, input->absbit))
671 return;
672
673 if (!td->maxcontacts)
674 td->maxcontacts = MT_DEFAULT_MAXCONTACT;
675
676 mt_post_parse(td);
677 if (td->serial_maybe)
678 mt_post_parse_default_settings(td);
679
680 if (cls->is_indirect)
681 td->mt_flags |= INPUT_MT_POINTER;
682
683 if (cls->quirks & MT_QUIRK_NOT_SEEN_MEANS_UP)
684 td->mt_flags |= INPUT_MT_DROP_UNUSED;
685
686 input_mt_init_slots(input, td->maxcontacts, td->mt_flags);
687
688 td->mt_flags = 0;
689 }
690
691 static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id)
692 {
693 int ret, i;
694 struct mt_device *td;
695 struct mt_class *mtclass = mt_classes; /* MT_CLS_DEFAULT */
696
697 for (i = 0; mt_classes[i].name ; i++) {
698 if (id->driver_data == mt_classes[i].name) {
699 mtclass = &(mt_classes[i]);
700 break;
701 }
702 }
703
704 /* This allows the driver to correctly support devices
705 * that emit events over several HID messages.
706 */
707 hdev->quirks |= HID_QUIRK_NO_INPUT_SYNC;
708
709 td = kzalloc(sizeof(struct mt_device), GFP_KERNEL);
710 if (!td) {
711 dev_err(&hdev->dev, "cannot allocate multitouch data\n");
712 return -ENOMEM;
713 }
714 td->mtclass = *mtclass;
715 td->inputmode = -1;
716 td->maxcontact_report_id = -1;
717 hid_set_drvdata(hdev, td);
718
719 td->fields = kzalloc(sizeof(struct mt_fields), GFP_KERNEL);
720 if (!td->fields) {
721 dev_err(&hdev->dev, "cannot allocate multitouch fields data\n");
722 ret = -ENOMEM;
723 goto fail;
724 }
725
726 if (id->vendor == HID_ANY_ID && id->product == HID_ANY_ID)
727 td->serial_maybe = true;
728
729 ret = hid_parse(hdev);
730 if (ret != 0)
731 goto fail;
732
733 ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
734 if (ret)
735 goto fail;
736
737 ret = sysfs_create_group(&hdev->dev.kobj, &mt_attribute_group);
738
739 mt_set_maxcontacts(hdev);
740 mt_set_input_mode(hdev);
741
742 kfree(td->fields);
743 td->fields = NULL;
744
745 return 0;
746
747 fail:
748 kfree(td->fields);
749 kfree(td);
750 return ret;
751 }
752
753 #ifdef CONFIG_PM
754 static int mt_reset_resume(struct hid_device *hdev)
755 {
756 mt_set_maxcontacts(hdev);
757 mt_set_input_mode(hdev);
758 return 0;
759 }
760
761 static int mt_resume(struct hid_device *hdev)
762 {
763 struct usb_interface *intf;
764 struct usb_host_interface *interface;
765 struct usb_device *dev;
766
767 if (hdev->bus != BUS_USB)
768 return 0;
769
770 intf = to_usb_interface(hdev->dev.parent);
771 interface = intf->cur_altsetting;
772 dev = hid_to_usb_dev(hdev);
773
774 /* Some Elan legacy devices require SET_IDLE to be set on resume.
775 * It should be safe to send it to other devices too.
776 * Tested on 3M, Stantum, Cypress, Zytronic, eGalax, and Elan panels. */
777
778 usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
779 HID_REQ_SET_IDLE,
780 USB_TYPE_CLASS | USB_RECIP_INTERFACE,
781 0, interface->desc.bInterfaceNumber,
782 NULL, 0, USB_CTRL_SET_TIMEOUT);
783
784 return 0;
785 }
786 #endif
787
788 static void mt_remove(struct hid_device *hdev)
789 {
790 struct mt_device *td = hid_get_drvdata(hdev);
791 sysfs_remove_group(&hdev->dev.kobj, &mt_attribute_group);
792 hid_hw_stop(hdev);
793 kfree(td);
794 hid_set_drvdata(hdev, NULL);
795 }
796
797 static const struct hid_device_id mt_devices[] = {
798
799 /* 3M panels */
800 { .driver_data = MT_CLS_3M,
801 MT_USB_DEVICE(USB_VENDOR_ID_3M,
802 USB_DEVICE_ID_3M1968) },
803 { .driver_data = MT_CLS_3M,
804 MT_USB_DEVICE(USB_VENDOR_ID_3M,
805 USB_DEVICE_ID_3M2256) },
806 { .driver_data = MT_CLS_3M,
807 MT_USB_DEVICE(USB_VENDOR_ID_3M,
808 USB_DEVICE_ID_3M3266) },
809
810 /* ActionStar panels */
811 { .driver_data = MT_CLS_DEFAULT,
812 MT_USB_DEVICE(USB_VENDOR_ID_ACTIONSTAR,
813 USB_DEVICE_ID_ACTIONSTAR_1011) },
814
815 /* Atmel panels */
816 { .driver_data = MT_CLS_SERIAL,
817 MT_USB_DEVICE(USB_VENDOR_ID_ATMEL,
818 USB_DEVICE_ID_ATMEL_MULTITOUCH) },
819 { .driver_data = MT_CLS_SERIAL,
820 MT_USB_DEVICE(USB_VENDOR_ID_ATMEL,
821 USB_DEVICE_ID_ATMEL_MXT_DIGITIZER) },
822
823 /* Baanto multitouch devices */
824 { .driver_data = MT_CLS_DEFAULT,
825 MT_USB_DEVICE(USB_VENDOR_ID_BAANTO,
826 USB_DEVICE_ID_BAANTO_MT_190W2) },
827 /* Cando panels */
828 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
829 MT_USB_DEVICE(USB_VENDOR_ID_CANDO,
830 USB_DEVICE_ID_CANDO_MULTI_TOUCH) },
831 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
832 MT_USB_DEVICE(USB_VENDOR_ID_CANDO,
833 USB_DEVICE_ID_CANDO_MULTI_TOUCH_10_1) },
834 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
835 MT_USB_DEVICE(USB_VENDOR_ID_CANDO,
836 USB_DEVICE_ID_CANDO_MULTI_TOUCH_11_6) },
837 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
838 MT_USB_DEVICE(USB_VENDOR_ID_CANDO,
839 USB_DEVICE_ID_CANDO_MULTI_TOUCH_15_6) },
840
841 /* Chunghwa Telecom touch panels */
842 { .driver_data = MT_CLS_DEFAULT,
843 MT_USB_DEVICE(USB_VENDOR_ID_CHUNGHWAT,
844 USB_DEVICE_ID_CHUNGHWAT_MULTITOUCH) },
845
846 /* CVTouch panels */
847 { .driver_data = MT_CLS_DEFAULT,
848 MT_USB_DEVICE(USB_VENDOR_ID_CVTOUCH,
849 USB_DEVICE_ID_CVTOUCH_SCREEN) },
850
851 /* Cypress panel */
852 { .driver_data = MT_CLS_CYPRESS,
853 HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS,
854 USB_DEVICE_ID_CYPRESS_TRUETOUCH) },
855
856 /* eGalax devices (resistive) */
857 { .driver_data = MT_CLS_EGALAX,
858 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
859 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_480D) },
860 { .driver_data = MT_CLS_EGALAX,
861 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
862 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_480E) },
863
864 /* eGalax devices (capacitive) */
865 { .driver_data = MT_CLS_EGALAX,
866 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
867 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_720C) },
868 { .driver_data = MT_CLS_EGALAX_SERIAL,
869 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
870 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7207) },
871 { .driver_data = MT_CLS_EGALAX_SERIAL,
872 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
873 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_725E) },
874 { .driver_data = MT_CLS_EGALAX_SERIAL,
875 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
876 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7224) },
877 { .driver_data = MT_CLS_EGALAX_SERIAL,
878 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
879 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_722A) },
880 { .driver_data = MT_CLS_EGALAX,
881 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
882 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_726B) },
883 { .driver_data = MT_CLS_EGALAX_SERIAL,
884 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
885 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7262) },
886 { .driver_data = MT_CLS_EGALAX,
887 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
888 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72A1) },
889 { .driver_data = MT_CLS_EGALAX_SERIAL,
890 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
891 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72AA) },
892 { .driver_data = MT_CLS_EGALAX,
893 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
894 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72FA) },
895 { .driver_data = MT_CLS_EGALAX,
896 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
897 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7302) },
898 { .driver_data = MT_CLS_EGALAX_SERIAL,
899 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
900 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7349) },
901 { .driver_data = MT_CLS_EGALAX_SERIAL,
902 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
903 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_73F7) },
904 { .driver_data = MT_CLS_EGALAX_SERIAL,
905 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
906 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_A001) },
907 { .driver_data = MT_CLS_EGALAX,
908 HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
909 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7224) },
910 { .driver_data = MT_CLS_EGALAX,
911 HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
912 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72D0) },
913 { .driver_data = MT_CLS_EGALAX,
914 HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
915 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72C4) },
916
917 /* Elo TouchSystems IntelliTouch Plus panel */
918 { .driver_data = MT_CLS_DUAL_NSMU_CONTACTID,
919 MT_USB_DEVICE(USB_VENDOR_ID_ELO,
920 USB_DEVICE_ID_ELO_TS2515) },
921
922 /* Flatfrog Panels */
923 { .driver_data = MT_CLS_FLATFROG,
924 MT_USB_DEVICE(USB_VENDOR_ID_FLATFROG,
925 USB_DEVICE_ID_MULTITOUCH_3200) },
926
927 /* GeneralTouch panel */
928 { .driver_data = MT_CLS_GENERALTOUCH_TWOFINGERS,
929 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
930 USB_DEVICE_ID_GENERAL_TOUCH_WIN7_TWOFINGERS) },
931 { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
932 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
933 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PWT_TENFINGERS) },
934
935 /* Gametel game controller */
936 { .driver_data = MT_CLS_DEFAULT,
937 MT_BT_DEVICE(USB_VENDOR_ID_FRUCTEL,
938 USB_DEVICE_ID_GAMETEL_MT_MODE) },
939
940 /* GoodTouch panels */
941 { .driver_data = MT_CLS_DEFAULT,
942 MT_USB_DEVICE(USB_VENDOR_ID_GOODTOUCH,
943 USB_DEVICE_ID_GOODTOUCH_000f) },
944
945 /* Hanvon panels */
946 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID,
947 MT_USB_DEVICE(USB_VENDOR_ID_HANVON_ALT,
948 USB_DEVICE_ID_HANVON_ALT_MULTITOUCH) },
949
950 /* Ideacom panel */
951 { .driver_data = MT_CLS_SERIAL,
952 MT_USB_DEVICE(USB_VENDOR_ID_IDEACOM,
953 USB_DEVICE_ID_IDEACOM_IDC6650) },
954 { .driver_data = MT_CLS_SERIAL,
955 MT_USB_DEVICE(USB_VENDOR_ID_IDEACOM,
956 USB_DEVICE_ID_IDEACOM_IDC6651) },
957
958 /* Ilitek dual touch panel */
959 { .driver_data = MT_CLS_DEFAULT,
960 MT_USB_DEVICE(USB_VENDOR_ID_ILITEK,
961 USB_DEVICE_ID_ILITEK_MULTITOUCH) },
962
963 /* IRTOUCH panels */
964 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID,
965 MT_USB_DEVICE(USB_VENDOR_ID_IRTOUCHSYSTEMS,
966 USB_DEVICE_ID_IRTOUCH_INFRARED_USB) },
967
968 /* LG Display panels */
969 { .driver_data = MT_CLS_DEFAULT,
970 MT_USB_DEVICE(USB_VENDOR_ID_LG,
971 USB_DEVICE_ID_LG_MULTITOUCH) },
972
973 /* Lumio panels */
974 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
975 MT_USB_DEVICE(USB_VENDOR_ID_LUMIO,
976 USB_DEVICE_ID_CRYSTALTOUCH) },
977 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
978 MT_USB_DEVICE(USB_VENDOR_ID_LUMIO,
979 USB_DEVICE_ID_CRYSTALTOUCH_DUAL) },
980
981 /* MosArt panels */
982 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
983 MT_USB_DEVICE(USB_VENDOR_ID_ASUS,
984 USB_DEVICE_ID_ASUS_T91MT)},
985 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
986 MT_USB_DEVICE(USB_VENDOR_ID_ASUS,
987 USB_DEVICE_ID_ASUSTEK_MULTITOUCH_YFO) },
988 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
989 MT_USB_DEVICE(USB_VENDOR_ID_TURBOX,
990 USB_DEVICE_ID_TURBOX_TOUCHSCREEN_MOSART) },
991
992 /* Panasonic panels */
993 { .driver_data = MT_CLS_PANASONIC,
994 MT_USB_DEVICE(USB_VENDOR_ID_PANASONIC,
995 USB_DEVICE_ID_PANABOARD_UBT780) },
996 { .driver_data = MT_CLS_PANASONIC,
997 MT_USB_DEVICE(USB_VENDOR_ID_PANASONIC,
998 USB_DEVICE_ID_PANABOARD_UBT880) },
999
1000 /* Novatek Panel */
1001 { .driver_data = MT_CLS_DEFAULT,
1002 MT_USB_DEVICE(USB_VENDOR_ID_NOVATEK,
1003 USB_DEVICE_ID_NOVATEK_PCT) },
1004
1005 /* PenMount panels */
1006 { .driver_data = MT_CLS_CONFIDENCE,
1007 MT_USB_DEVICE(USB_VENDOR_ID_PENMOUNT,
1008 USB_DEVICE_ID_PENMOUNT_PCI) },
1009
1010 /* PixArt optical touch screen */
1011 { .driver_data = MT_CLS_INRANGE_CONTACTNUMBER,
1012 MT_USB_DEVICE(USB_VENDOR_ID_PIXART,
1013 USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN) },
1014 { .driver_data = MT_CLS_INRANGE_CONTACTNUMBER,
1015 MT_USB_DEVICE(USB_VENDOR_ID_PIXART,
1016 USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN1) },
1017 { .driver_data = MT_CLS_INRANGE_CONTACTNUMBER,
1018 MT_USB_DEVICE(USB_VENDOR_ID_PIXART,
1019 USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN2) },
1020
1021 /* PixCir-based panels */
1022 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID,
1023 MT_USB_DEVICE(USB_VENDOR_ID_HANVON,
1024 USB_DEVICE_ID_HANVON_MULTITOUCH) },
1025 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID,
1026 MT_USB_DEVICE(USB_VENDOR_ID_CANDO,
1027 USB_DEVICE_ID_CANDO_PIXCIR_MULTI_TOUCH) },
1028
1029 /* Quanta-based panels */
1030 { .driver_data = MT_CLS_CONFIDENCE_CONTACT_ID,
1031 MT_USB_DEVICE(USB_VENDOR_ID_QUANTA,
1032 USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH) },
1033 { .driver_data = MT_CLS_CONFIDENCE_CONTACT_ID,
1034 MT_USB_DEVICE(USB_VENDOR_ID_QUANTA,
1035 USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3001) },
1036 { .driver_data = MT_CLS_CONFIDENCE_CONTACT_ID,
1037 MT_USB_DEVICE(USB_VENDOR_ID_QUANTA,
1038 USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3008) },
1039
1040 /* Stantum panels */
1041 { .driver_data = MT_CLS_CONFIDENCE,
1042 MT_USB_DEVICE(USB_VENDOR_ID_STANTUM,
1043 USB_DEVICE_ID_MTP)},
1044 { .driver_data = MT_CLS_CONFIDENCE,
1045 MT_USB_DEVICE(USB_VENDOR_ID_STANTUM_STM,
1046 USB_DEVICE_ID_MTP_STM)},
1047 { .driver_data = MT_CLS_CONFIDENCE,
1048 MT_USB_DEVICE(USB_VENDOR_ID_STANTUM_SITRONIX,
1049 USB_DEVICE_ID_MTP_SITRONIX)},
1050
1051 /* TopSeed panels */
1052 { .driver_data = MT_CLS_TOPSEED,
1053 MT_USB_DEVICE(USB_VENDOR_ID_TOPSEED2,
1054 USB_DEVICE_ID_TOPSEED2_PERIPAD_701) },
1055
1056 /* Touch International panels */
1057 { .driver_data = MT_CLS_DEFAULT,
1058 MT_USB_DEVICE(USB_VENDOR_ID_TOUCH_INTL,
1059 USB_DEVICE_ID_TOUCH_INTL_MULTI_TOUCH) },
1060
1061 /* Unitec panels */
1062 { .driver_data = MT_CLS_DEFAULT,
1063 MT_USB_DEVICE(USB_VENDOR_ID_UNITEC,
1064 USB_DEVICE_ID_UNITEC_USB_TOUCH_0709) },
1065 { .driver_data = MT_CLS_DEFAULT,
1066 MT_USB_DEVICE(USB_VENDOR_ID_UNITEC,
1067 USB_DEVICE_ID_UNITEC_USB_TOUCH_0A19) },
1068 /* XAT */
1069 { .driver_data = MT_CLS_DEFAULT,
1070 MT_USB_DEVICE(USB_VENDOR_ID_XAT,
1071 USB_DEVICE_ID_XAT_CSR) },
1072
1073 /* Xiroku */
1074 { .driver_data = MT_CLS_DEFAULT,
1075 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1076 USB_DEVICE_ID_XIROKU_SPX) },
1077 { .driver_data = MT_CLS_DEFAULT,
1078 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1079 USB_DEVICE_ID_XIROKU_MPX) },
1080 { .driver_data = MT_CLS_DEFAULT,
1081 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1082 USB_DEVICE_ID_XIROKU_CSR) },
1083 { .driver_data = MT_CLS_DEFAULT,
1084 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1085 USB_DEVICE_ID_XIROKU_SPX1) },
1086 { .driver_data = MT_CLS_DEFAULT,
1087 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1088 USB_DEVICE_ID_XIROKU_MPX1) },
1089 { .driver_data = MT_CLS_DEFAULT,
1090 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1091 USB_DEVICE_ID_XIROKU_CSR1) },
1092 { .driver_data = MT_CLS_DEFAULT,
1093 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1094 USB_DEVICE_ID_XIROKU_SPX2) },
1095 { .driver_data = MT_CLS_DEFAULT,
1096 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1097 USB_DEVICE_ID_XIROKU_MPX2) },
1098 { .driver_data = MT_CLS_DEFAULT,
1099 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1100 USB_DEVICE_ID_XIROKU_CSR2) },
1101
1102 /* Zytronic panels */
1103 { .driver_data = MT_CLS_SERIAL,
1104 MT_USB_DEVICE(USB_VENDOR_ID_ZYTRONIC,
1105 USB_DEVICE_ID_ZYTRONIC_ZXY100) },
1106
1107 /* Generic MT device */
1108 { HID_DEVICE(HID_BUS_ANY, HID_GROUP_MULTITOUCH, HID_ANY_ID, HID_ANY_ID) },
1109 { }
1110 };
1111 MODULE_DEVICE_TABLE(hid, mt_devices);
1112
1113 static const struct hid_usage_id mt_grabbed_usages[] = {
1114 { HID_ANY_ID, HID_ANY_ID, HID_ANY_ID },
1115 { HID_ANY_ID - 1, HID_ANY_ID - 1, HID_ANY_ID - 1}
1116 };
1117
1118 static struct hid_driver mt_driver = {
1119 .name = "hid-multitouch",
1120 .id_table = mt_devices,
1121 .probe = mt_probe,
1122 .remove = mt_remove,
1123 .input_mapping = mt_input_mapping,
1124 .input_mapped = mt_input_mapped,
1125 .input_configured = mt_input_configured,
1126 .feature_mapping = mt_feature_mapping,
1127 .usage_table = mt_grabbed_usages,
1128 .event = mt_event,
1129 #ifdef CONFIG_PM
1130 .reset_resume = mt_reset_resume,
1131 .resume = mt_resume,
1132 #endif
1133 };
1134
1135 static int __init mt_init(void)
1136 {
1137 return hid_register_driver(&mt_driver);
1138 }
1139
1140 static void __exit mt_exit(void)
1141 {
1142 hid_unregister_driver(&mt_driver);
1143 }
1144
1145 module_init(mt_init);
1146 module_exit(mt_exit);
Linus' kernel tree