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drm/i915: report Gen5+ CPU and PCH FIFO underruns
[deliverable/linux.git] / drivers / hid / hid-multitouch.c
1 /*
2 * HID driver for multitouch panels
3 *
4 * Copyright (c) 2010-2012 Stephane Chatty <chatty@enac.fr>
5 * Copyright (c) 2010-2012 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 #define MT_QUIRK_IGNORE_DUPLICATES (1 << 10)
56 #define MT_QUIRK_HOVERING (1 << 11)
57 #define MT_QUIRK_CONTACT_CNT_ACCURATE (1 << 12)
58
59 struct mt_slot {
60 __s32 x, y, cx, cy, p, w, h;
61 __s32 contactid; /* the device ContactID assigned to this slot */
62 bool touch_state; /* is the touch valid? */
63 bool inrange_state; /* is the finger in proximity of the sensor? */
64 };
65
66 struct mt_class {
67 __s32 name; /* MT_CLS */
68 __s32 quirks;
69 __s32 sn_move; /* Signal/noise ratio for move events */
70 __s32 sn_width; /* Signal/noise ratio for width events */
71 __s32 sn_height; /* Signal/noise ratio for height events */
72 __s32 sn_pressure; /* Signal/noise ratio for pressure events */
73 __u8 maxcontacts;
74 bool is_indirect; /* true for touchpads */
75 };
76
77 struct mt_fields {
78 unsigned usages[HID_MAX_FIELDS];
79 unsigned int length;
80 };
81
82 struct mt_device {
83 struct mt_slot curdata; /* placeholder of incoming data */
84 struct mt_class mtclass; /* our mt device class */
85 struct mt_fields *fields; /* temporary placeholder for storing the
86 multitouch fields */
87 int cc_index; /* contact count field index in the report */
88 int cc_value_index; /* contact count value index in the field */
89 unsigned last_field_index; /* last field index of the report */
90 unsigned last_slot_field; /* the last field of a slot */
91 unsigned mt_report_id; /* the report ID of the multitouch device */
92 __s8 inputmode; /* InputMode HID feature, -1 if non-existent */
93 __s8 inputmode_index; /* InputMode HID feature index in the report */
94 __s8 maxcontact_report_id; /* Maximum Contact Number HID feature,
95 -1 if non-existent */
96 __u8 num_received; /* how many contacts we received */
97 __u8 num_expected; /* expected last contact index */
98 __u8 maxcontacts;
99 __u8 touches_by_report; /* how many touches are present in one report:
100 * 1 means we should use a serial protocol
101 * > 1 means hybrid (multitouch) protocol */
102 bool serial_maybe; /* need to check for serial protocol */
103 bool curvalid; /* is the current contact valid? */
104 unsigned mt_flags; /* flags to pass to input-mt */
105 };
106
107 /* classes of device behavior */
108 #define MT_CLS_DEFAULT 0x0001
109
110 #define MT_CLS_SERIAL 0x0002
111 #define MT_CLS_CONFIDENCE 0x0003
112 #define MT_CLS_CONFIDENCE_CONTACT_ID 0x0004
113 #define MT_CLS_CONFIDENCE_MINUS_ONE 0x0005
114 #define MT_CLS_DUAL_INRANGE_CONTACTID 0x0006
115 #define MT_CLS_DUAL_INRANGE_CONTACTNUMBER 0x0007
116 #define MT_CLS_DUAL_NSMU_CONTACTID 0x0008
117 #define MT_CLS_INRANGE_CONTACTNUMBER 0x0009
118 #define MT_CLS_NSMU 0x000a
119 #define MT_CLS_DUAL_CONTACT_NUMBER 0x0010
120 #define MT_CLS_DUAL_CONTACT_ID 0x0011
121
122 /* vendor specific classes */
123 #define MT_CLS_3M 0x0101
124 #define MT_CLS_CYPRESS 0x0102
125 #define MT_CLS_EGALAX 0x0103
126 #define MT_CLS_EGALAX_SERIAL 0x0104
127 #define MT_CLS_TOPSEED 0x0105
128 #define MT_CLS_PANASONIC 0x0106
129 #define MT_CLS_FLATFROG 0x0107
130 #define MT_CLS_GENERALTOUCH_TWOFINGERS 0x0108
131 #define MT_CLS_GENERALTOUCH_PWT_TENFINGERS 0x0109
132
133 #define MT_DEFAULT_MAXCONTACT 10
134 #define MT_MAX_MAXCONTACT 250
135
136 #define MT_USB_DEVICE(v, p) HID_DEVICE(BUS_USB, HID_GROUP_MULTITOUCH, v, p)
137 #define MT_BT_DEVICE(v, p) HID_DEVICE(BUS_BLUETOOTH, HID_GROUP_MULTITOUCH, v, p)
138
139 /*
140 * these device-dependent functions determine what slot corresponds
141 * to a valid contact that was just read.
142 */
143
144 static int cypress_compute_slot(struct mt_device *td)
145 {
146 if (td->curdata.contactid != 0 || td->num_received == 0)
147 return td->curdata.contactid;
148 else
149 return -1;
150 }
151
152 static struct mt_class mt_classes[] = {
153 { .name = MT_CLS_DEFAULT,
154 .quirks = MT_QUIRK_ALWAYS_VALID |
155 MT_QUIRK_CONTACT_CNT_ACCURATE },
156 { .name = MT_CLS_NSMU,
157 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP },
158 { .name = MT_CLS_SERIAL,
159 .quirks = MT_QUIRK_ALWAYS_VALID},
160 { .name = MT_CLS_CONFIDENCE,
161 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE },
162 { .name = MT_CLS_CONFIDENCE_CONTACT_ID,
163 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE |
164 MT_QUIRK_SLOT_IS_CONTACTID },
165 { .name = MT_CLS_CONFIDENCE_MINUS_ONE,
166 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE |
167 MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE },
168 { .name = MT_CLS_DUAL_INRANGE_CONTACTID,
169 .quirks = MT_QUIRK_VALID_IS_INRANGE |
170 MT_QUIRK_SLOT_IS_CONTACTID,
171 .maxcontacts = 2 },
172 { .name = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
173 .quirks = MT_QUIRK_VALID_IS_INRANGE |
174 MT_QUIRK_SLOT_IS_CONTACTNUMBER,
175 .maxcontacts = 2 },
176 { .name = MT_CLS_DUAL_NSMU_CONTACTID,
177 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP |
178 MT_QUIRK_SLOT_IS_CONTACTID,
179 .maxcontacts = 2 },
180 { .name = MT_CLS_INRANGE_CONTACTNUMBER,
181 .quirks = MT_QUIRK_VALID_IS_INRANGE |
182 MT_QUIRK_SLOT_IS_CONTACTNUMBER },
183 { .name = MT_CLS_DUAL_CONTACT_NUMBER,
184 .quirks = MT_QUIRK_ALWAYS_VALID |
185 MT_QUIRK_CONTACT_CNT_ACCURATE |
186 MT_QUIRK_SLOT_IS_CONTACTNUMBER,
187 .maxcontacts = 2 },
188 { .name = MT_CLS_DUAL_CONTACT_ID,
189 .quirks = MT_QUIRK_ALWAYS_VALID |
190 MT_QUIRK_CONTACT_CNT_ACCURATE |
191 MT_QUIRK_SLOT_IS_CONTACTID,
192 .maxcontacts = 2 },
193
194 /*
195 * vendor specific classes
196 */
197 { .name = MT_CLS_3M,
198 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE |
199 MT_QUIRK_SLOT_IS_CONTACTID,
200 .sn_move = 2048,
201 .sn_width = 128,
202 .sn_height = 128,
203 .maxcontacts = 60,
204 },
205 { .name = MT_CLS_CYPRESS,
206 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP |
207 MT_QUIRK_CYPRESS,
208 .maxcontacts = 10 },
209 { .name = MT_CLS_EGALAX,
210 .quirks = MT_QUIRK_SLOT_IS_CONTACTID |
211 MT_QUIRK_VALID_IS_INRANGE,
212 .sn_move = 4096,
213 .sn_pressure = 32,
214 },
215 { .name = MT_CLS_EGALAX_SERIAL,
216 .quirks = MT_QUIRK_SLOT_IS_CONTACTID |
217 MT_QUIRK_ALWAYS_VALID,
218 .sn_move = 4096,
219 .sn_pressure = 32,
220 },
221 { .name = MT_CLS_TOPSEED,
222 .quirks = MT_QUIRK_ALWAYS_VALID,
223 .is_indirect = true,
224 .maxcontacts = 2,
225 },
226 { .name = MT_CLS_PANASONIC,
227 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP,
228 .maxcontacts = 4 },
229 { .name = MT_CLS_GENERALTOUCH_TWOFINGERS,
230 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP |
231 MT_QUIRK_VALID_IS_INRANGE |
232 MT_QUIRK_SLOT_IS_CONTACTNUMBER,
233 .maxcontacts = 2
234 },
235 { .name = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
236 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP |
237 MT_QUIRK_SLOT_IS_CONTACTNUMBER
238 },
239
240 { .name = MT_CLS_FLATFROG,
241 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP |
242 MT_QUIRK_NO_AREA,
243 .sn_move = 2048,
244 .maxcontacts = 40,
245 },
246 { }
247 };
248
249 static ssize_t mt_show_quirks(struct device *dev,
250 struct device_attribute *attr,
251 char *buf)
252 {
253 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
254 struct mt_device *td = hid_get_drvdata(hdev);
255
256 return sprintf(buf, "%u\n", td->mtclass.quirks);
257 }
258
259 static ssize_t mt_set_quirks(struct device *dev,
260 struct device_attribute *attr,
261 const char *buf, size_t count)
262 {
263 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
264 struct mt_device *td = hid_get_drvdata(hdev);
265
266 unsigned long val;
267
268 if (kstrtoul(buf, 0, &val))
269 return -EINVAL;
270
271 td->mtclass.quirks = val;
272
273 if (td->cc_index < 0)
274 td->mtclass.quirks &= ~MT_QUIRK_CONTACT_CNT_ACCURATE;
275
276 return count;
277 }
278
279 static DEVICE_ATTR(quirks, S_IWUSR | S_IRUGO, mt_show_quirks, mt_set_quirks);
280
281 static struct attribute *sysfs_attrs[] = {
282 &dev_attr_quirks.attr,
283 NULL
284 };
285
286 static struct attribute_group mt_attribute_group = {
287 .attrs = sysfs_attrs
288 };
289
290 static void mt_feature_mapping(struct hid_device *hdev,
291 struct hid_field *field, struct hid_usage *usage)
292 {
293 struct mt_device *td = hid_get_drvdata(hdev);
294 int i;
295
296 switch (usage->hid) {
297 case HID_DG_INPUTMODE:
298 td->inputmode = field->report->id;
299 td->inputmode_index = 0; /* has to be updated below */
300
301 for (i=0; i < field->maxusage; i++) {
302 if (field->usage[i].hid == usage->hid) {
303 td->inputmode_index = i;
304 break;
305 }
306 }
307
308 break;
309 case HID_DG_CONTACTMAX:
310 td->maxcontact_report_id = field->report->id;
311 td->maxcontacts = field->value[0];
312 if (!td->maxcontacts &&
313 field->logical_maximum <= MT_MAX_MAXCONTACT)
314 td->maxcontacts = field->logical_maximum;
315 if (td->mtclass.maxcontacts)
316 /* check if the maxcontacts is given by the class */
317 td->maxcontacts = td->mtclass.maxcontacts;
318
319 break;
320 case 0xff0000c5:
321 if (field->report_count == 256 && field->report_size == 8) {
322 /* Win 8 devices need special quirks */
323 __s32 *quirks = &td->mtclass.quirks;
324 *quirks |= MT_QUIRK_ALWAYS_VALID;
325 *quirks |= MT_QUIRK_IGNORE_DUPLICATES;
326 *quirks |= MT_QUIRK_HOVERING;
327 *quirks |= MT_QUIRK_CONTACT_CNT_ACCURATE;
328 *quirks &= ~MT_QUIRK_NOT_SEEN_MEANS_UP;
329 *quirks &= ~MT_QUIRK_VALID_IS_INRANGE;
330 *quirks &= ~MT_QUIRK_VALID_IS_CONFIDENCE;
331 }
332 break;
333 }
334 }
335
336 static void set_abs(struct input_dev *input, unsigned int code,
337 struct hid_field *field, int snratio)
338 {
339 int fmin = field->logical_minimum;
340 int fmax = field->logical_maximum;
341 int fuzz = snratio ? (fmax - fmin) / snratio : 0;
342 input_set_abs_params(input, code, fmin, fmax, fuzz, 0);
343 input_abs_set_res(input, code, hidinput_calc_abs_res(field, code));
344 }
345
346 static void mt_store_field(struct hid_usage *usage, struct mt_device *td,
347 struct hid_input *hi)
348 {
349 struct mt_fields *f = td->fields;
350
351 if (f->length >= HID_MAX_FIELDS)
352 return;
353
354 f->usages[f->length++] = usage->hid;
355 }
356
357 static int mt_input_mapping(struct hid_device *hdev, struct hid_input *hi,
358 struct hid_field *field, struct hid_usage *usage,
359 unsigned long **bit, int *max)
360 {
361 struct mt_device *td = hid_get_drvdata(hdev);
362 struct mt_class *cls = &td->mtclass;
363 int code;
364 struct hid_usage *prev_usage = NULL;
365
366 /* Only map fields from TouchScreen or TouchPad collections.
367 * We need to ignore fields that belong to other collections
368 * such as Mouse that might have the same GenericDesktop usages. */
369 if (field->application == HID_DG_TOUCHSCREEN)
370 td->mt_flags |= INPUT_MT_DIRECT;
371 else if (field->application != HID_DG_TOUCHPAD)
372 return 0;
373
374 /*
375 * Model touchscreens providing buttons as touchpads.
376 */
377 if (field->application == HID_DG_TOUCHPAD ||
378 (usage->hid & HID_USAGE_PAGE) == HID_UP_BUTTON)
379 td->mt_flags |= INPUT_MT_POINTER;
380
381 /* eGalax devices provide a Digitizer.Stylus input which overrides
382 * the correct Digitizers.Finger X/Y ranges.
383 * Let's just ignore this input. */
384 if (field->physical == HID_DG_STYLUS)
385 return -1;
386
387 if (usage->usage_index)
388 prev_usage = &field->usage[usage->usage_index - 1];
389
390 switch (usage->hid & HID_USAGE_PAGE) {
391
392 case HID_UP_GENDESK:
393 switch (usage->hid) {
394 case HID_GD_X:
395 if (prev_usage && (prev_usage->hid == usage->hid)) {
396 hid_map_usage(hi, usage, bit, max,
397 EV_ABS, ABS_MT_TOOL_X);
398 set_abs(hi->input, ABS_MT_TOOL_X, field,
399 cls->sn_move);
400 } else {
401 hid_map_usage(hi, usage, bit, max,
402 EV_ABS, ABS_MT_POSITION_X);
403 set_abs(hi->input, ABS_MT_POSITION_X, field,
404 cls->sn_move);
405 }
406
407 mt_store_field(usage, td, hi);
408 td->last_field_index = field->index;
409 return 1;
410 case HID_GD_Y:
411 if (prev_usage && (prev_usage->hid == usage->hid)) {
412 hid_map_usage(hi, usage, bit, max,
413 EV_ABS, ABS_MT_TOOL_Y);
414 set_abs(hi->input, ABS_MT_TOOL_Y, field,
415 cls->sn_move);
416 } else {
417 hid_map_usage(hi, usage, bit, max,
418 EV_ABS, ABS_MT_POSITION_Y);
419 set_abs(hi->input, ABS_MT_POSITION_Y, field,
420 cls->sn_move);
421 }
422
423 mt_store_field(usage, td, hi);
424 td->last_field_index = field->index;
425 return 1;
426 }
427 return 0;
428
429 case HID_UP_DIGITIZER:
430 switch (usage->hid) {
431 case HID_DG_INRANGE:
432 if (cls->quirks & MT_QUIRK_HOVERING) {
433 hid_map_usage(hi, usage, bit, max,
434 EV_ABS, ABS_MT_DISTANCE);
435 input_set_abs_params(hi->input,
436 ABS_MT_DISTANCE, 0, 1, 0, 0);
437 }
438 mt_store_field(usage, td, hi);
439 td->last_field_index = field->index;
440 return 1;
441 case HID_DG_CONFIDENCE:
442 mt_store_field(usage, td, hi);
443 td->last_field_index = field->index;
444 return 1;
445 case HID_DG_TIPSWITCH:
446 hid_map_usage(hi, usage, bit, max, EV_KEY, BTN_TOUCH);
447 input_set_capability(hi->input, EV_KEY, BTN_TOUCH);
448 mt_store_field(usage, td, hi);
449 td->last_field_index = field->index;
450 return 1;
451 case HID_DG_CONTACTID:
452 mt_store_field(usage, td, hi);
453 td->last_field_index = field->index;
454 td->touches_by_report++;
455 td->mt_report_id = field->report->id;
456 return 1;
457 case HID_DG_WIDTH:
458 hid_map_usage(hi, usage, bit, max,
459 EV_ABS, ABS_MT_TOUCH_MAJOR);
460 if (!(cls->quirks & MT_QUIRK_NO_AREA))
461 set_abs(hi->input, ABS_MT_TOUCH_MAJOR, field,
462 cls->sn_width);
463 mt_store_field(usage, td, hi);
464 td->last_field_index = field->index;
465 return 1;
466 case HID_DG_HEIGHT:
467 hid_map_usage(hi, usage, bit, max,
468 EV_ABS, ABS_MT_TOUCH_MINOR);
469 if (!(cls->quirks & MT_QUIRK_NO_AREA)) {
470 set_abs(hi->input, ABS_MT_TOUCH_MINOR, field,
471 cls->sn_height);
472 input_set_abs_params(hi->input,
473 ABS_MT_ORIENTATION, 0, 1, 0, 0);
474 }
475 mt_store_field(usage, td, hi);
476 td->last_field_index = field->index;
477 return 1;
478 case HID_DG_TIPPRESSURE:
479 hid_map_usage(hi, usage, bit, max,
480 EV_ABS, ABS_MT_PRESSURE);
481 set_abs(hi->input, ABS_MT_PRESSURE, field,
482 cls->sn_pressure);
483 mt_store_field(usage, td, hi);
484 td->last_field_index = field->index;
485 return 1;
486 case HID_DG_CONTACTCOUNT:
487 td->cc_index = field->index;
488 td->cc_value_index = usage->usage_index;
489 td->last_field_index = field->index;
490 return 1;
491 case HID_DG_CONTACTMAX:
492 /* we don't set td->last_slot_field as contactcount and
493 * contact max are global to the report */
494 td->last_field_index = field->index;
495 return -1;
496 case HID_DG_TOUCH:
497 /* Legacy devices use TIPSWITCH and not TOUCH.
498 * Let's just ignore this field. */
499 return -1;
500 }
501 /* let hid-input decide for the others */
502 return 0;
503
504 case HID_UP_BUTTON:
505 code = BTN_MOUSE + ((usage->hid - 1) & HID_USAGE);
506 hid_map_usage(hi, usage, bit, max, EV_KEY, code);
507 input_set_capability(hi->input, EV_KEY, code);
508 return 1;
509
510 case 0xff000000:
511 /* we do not want to map these: no input-oriented meaning */
512 return -1;
513 }
514
515 return 0;
516 }
517
518 static int mt_input_mapped(struct hid_device *hdev, struct hid_input *hi,
519 struct hid_field *field, struct hid_usage *usage,
520 unsigned long **bit, int *max)
521 {
522 if (usage->type == EV_KEY || usage->type == EV_ABS)
523 set_bit(usage->type, hi->input->evbit);
524
525 return -1;
526 }
527
528 static int mt_compute_slot(struct mt_device *td, struct input_dev *input)
529 {
530 __s32 quirks = td->mtclass.quirks;
531
532 if (quirks & MT_QUIRK_SLOT_IS_CONTACTID)
533 return td->curdata.contactid;
534
535 if (quirks & MT_QUIRK_CYPRESS)
536 return cypress_compute_slot(td);
537
538 if (quirks & MT_QUIRK_SLOT_IS_CONTACTNUMBER)
539 return td->num_received;
540
541 if (quirks & MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE)
542 return td->curdata.contactid - 1;
543
544 return input_mt_get_slot_by_key(input, td->curdata.contactid);
545 }
546
547 /*
548 * this function is called when a whole contact has been processed,
549 * so that it can assign it to a slot and store the data there
550 */
551 static void mt_complete_slot(struct mt_device *td, struct input_dev *input)
552 {
553 if ((td->mtclass.quirks & MT_QUIRK_CONTACT_CNT_ACCURATE) &&
554 td->num_received >= td->num_expected)
555 return;
556
557 if (td->curvalid || (td->mtclass.quirks & MT_QUIRK_ALWAYS_VALID)) {
558 int slotnum = mt_compute_slot(td, input);
559 struct mt_slot *s = &td->curdata;
560 struct input_mt *mt = input->mt;
561
562 if (slotnum < 0 || slotnum >= td->maxcontacts)
563 return;
564
565 if ((td->mtclass.quirks & MT_QUIRK_IGNORE_DUPLICATES) && mt) {
566 struct input_mt_slot *slot = &mt->slots[slotnum];
567 if (input_mt_is_active(slot) &&
568 input_mt_is_used(mt, slot))
569 return;
570 }
571
572 input_mt_slot(input, slotnum);
573 input_mt_report_slot_state(input, MT_TOOL_FINGER,
574 s->touch_state || s->inrange_state);
575 if (s->touch_state || s->inrange_state) {
576 /* this finger is in proximity of the sensor */
577 int wide = (s->w > s->h);
578 /* divided by two to match visual scale of touch */
579 int major = max(s->w, s->h) >> 1;
580 int minor = min(s->w, s->h) >> 1;
581
582 input_event(input, EV_ABS, ABS_MT_POSITION_X, s->x);
583 input_event(input, EV_ABS, ABS_MT_POSITION_Y, s->y);
584 input_event(input, EV_ABS, ABS_MT_TOOL_X, s->cx);
585 input_event(input, EV_ABS, ABS_MT_TOOL_Y, s->cy);
586 input_event(input, EV_ABS, ABS_MT_DISTANCE,
587 !s->touch_state);
588 input_event(input, EV_ABS, ABS_MT_ORIENTATION, wide);
589 input_event(input, EV_ABS, ABS_MT_PRESSURE, s->p);
590 input_event(input, EV_ABS, ABS_MT_TOUCH_MAJOR, major);
591 input_event(input, EV_ABS, ABS_MT_TOUCH_MINOR, minor);
592 }
593 }
594
595 td->num_received++;
596 }
597
598 /*
599 * this function is called when a whole packet has been received and processed,
600 * so that it can decide what to send to the input layer.
601 */
602 static void mt_sync_frame(struct mt_device *td, struct input_dev *input)
603 {
604 input_mt_sync_frame(input);
605 input_sync(input);
606 td->num_received = 0;
607 }
608
609 static int mt_event(struct hid_device *hid, struct hid_field *field,
610 struct hid_usage *usage, __s32 value)
611 {
612 /* we will handle the hidinput part later, now remains hiddev */
613 if (hid->claimed & HID_CLAIMED_HIDDEV && hid->hiddev_hid_event)
614 hid->hiddev_hid_event(hid, field, usage, value);
615
616 return 1;
617 }
618
619 static void mt_process_mt_event(struct hid_device *hid, struct hid_field *field,
620 struct hid_usage *usage, __s32 value)
621 {
622 struct mt_device *td = hid_get_drvdata(hid);
623 __s32 quirks = td->mtclass.quirks;
624 struct input_dev *input = field->hidinput->input;
625
626 if (hid->claimed & HID_CLAIMED_INPUT) {
627 switch (usage->hid) {
628 case HID_DG_INRANGE:
629 if (quirks & MT_QUIRK_VALID_IS_INRANGE)
630 td->curvalid = value;
631 if (quirks & MT_QUIRK_HOVERING)
632 td->curdata.inrange_state = value;
633 break;
634 case HID_DG_TIPSWITCH:
635 if (quirks & MT_QUIRK_NOT_SEEN_MEANS_UP)
636 td->curvalid = value;
637 td->curdata.touch_state = value;
638 break;
639 case HID_DG_CONFIDENCE:
640 if (quirks & MT_QUIRK_VALID_IS_CONFIDENCE)
641 td->curvalid = value;
642 break;
643 case HID_DG_CONTACTID:
644 td->curdata.contactid = value;
645 break;
646 case HID_DG_TIPPRESSURE:
647 td->curdata.p = value;
648 break;
649 case HID_GD_X:
650 if (usage->code == ABS_MT_TOOL_X)
651 td->curdata.cx = value;
652 else
653 td->curdata.x = value;
654 break;
655 case HID_GD_Y:
656 if (usage->code == ABS_MT_TOOL_Y)
657 td->curdata.cy = value;
658 else
659 td->curdata.y = value;
660 break;
661 case HID_DG_WIDTH:
662 td->curdata.w = value;
663 break;
664 case HID_DG_HEIGHT:
665 td->curdata.h = value;
666 break;
667 case HID_DG_CONTACTCOUNT:
668 break;
669 case HID_DG_TOUCH:
670 /* do nothing */
671 break;
672
673 default:
674 if (usage->type)
675 input_event(input, usage->type, usage->code,
676 value);
677 return;
678 }
679
680 if (usage->usage_index + 1 == field->report_count) {
681 /* we only take into account the last report. */
682 if (usage->hid == td->last_slot_field)
683 mt_complete_slot(td, input);
684
685 if (field->index == td->last_field_index
686 && td->num_received >= td->num_expected)
687 mt_sync_frame(td, field->hidinput->input);
688 }
689
690 }
691 }
692
693 static void mt_report(struct hid_device *hid, struct hid_report *report)
694 {
695 struct mt_device *td = hid_get_drvdata(hid);
696 struct hid_field *field;
697 unsigned count;
698 int r, n;
699
700 if (report->id != td->mt_report_id)
701 return;
702
703 if (!(hid->claimed & HID_CLAIMED_INPUT))
704 return;
705
706 /*
707 * Includes multi-packet support where subsequent
708 * packets are sent with zero contactcount.
709 */
710 if (td->cc_index >= 0) {
711 struct hid_field *field = report->field[td->cc_index];
712 int value = field->value[td->cc_value_index];
713 if (value)
714 td->num_expected = value;
715 }
716
717 for (r = 0; r < report->maxfield; r++) {
718 field = report->field[r];
719 count = field->report_count;
720
721 if (!(HID_MAIN_ITEM_VARIABLE & field->flags))
722 continue;
723
724 for (n = 0; n < count; n++)
725 mt_process_mt_event(hid, field, &field->usage[n],
726 field->value[n]);
727 }
728 }
729
730 static void mt_set_input_mode(struct hid_device *hdev)
731 {
732 struct mt_device *td = hid_get_drvdata(hdev);
733 struct hid_report *r;
734 struct hid_report_enum *re;
735
736 if (td->inputmode < 0)
737 return;
738
739 re = &(hdev->report_enum[HID_FEATURE_REPORT]);
740 r = re->report_id_hash[td->inputmode];
741 if (r) {
742 r->field[0]->value[td->inputmode_index] = 0x02;
743 usbhid_submit_report(hdev, r, USB_DIR_OUT);
744 }
745 }
746
747 static void mt_set_maxcontacts(struct hid_device *hdev)
748 {
749 struct mt_device *td = hid_get_drvdata(hdev);
750 struct hid_report *r;
751 struct hid_report_enum *re;
752 int fieldmax, max;
753
754 if (td->maxcontact_report_id < 0)
755 return;
756
757 if (!td->mtclass.maxcontacts)
758 return;
759
760 re = &hdev->report_enum[HID_FEATURE_REPORT];
761 r = re->report_id_hash[td->maxcontact_report_id];
762 if (r) {
763 max = td->mtclass.maxcontacts;
764 fieldmax = r->field[0]->logical_maximum;
765 max = min(fieldmax, max);
766 if (r->field[0]->value[0] != max) {
767 r->field[0]->value[0] = max;
768 usbhid_submit_report(hdev, r, USB_DIR_OUT);
769 }
770 }
771 }
772
773 static void mt_post_parse_default_settings(struct mt_device *td)
774 {
775 __s32 quirks = td->mtclass.quirks;
776
777 /* unknown serial device needs special quirks */
778 if (td->touches_by_report == 1) {
779 quirks |= MT_QUIRK_ALWAYS_VALID;
780 quirks &= ~MT_QUIRK_NOT_SEEN_MEANS_UP;
781 quirks &= ~MT_QUIRK_VALID_IS_INRANGE;
782 quirks &= ~MT_QUIRK_VALID_IS_CONFIDENCE;
783 quirks &= ~MT_QUIRK_CONTACT_CNT_ACCURATE;
784 }
785
786 td->mtclass.quirks = quirks;
787 }
788
789 static void mt_post_parse(struct mt_device *td)
790 {
791 struct mt_fields *f = td->fields;
792 struct mt_class *cls = &td->mtclass;
793
794 if (td->touches_by_report > 0) {
795 int field_count_per_touch = f->length / td->touches_by_report;
796 td->last_slot_field = f->usages[field_count_per_touch - 1];
797 }
798
799 if (td->cc_index < 0)
800 cls->quirks &= ~MT_QUIRK_CONTACT_CNT_ACCURATE;
801 }
802
803 static void mt_input_configured(struct hid_device *hdev, struct hid_input *hi)
804
805 {
806 struct mt_device *td = hid_get_drvdata(hdev);
807 struct mt_class *cls = &td->mtclass;
808 struct input_dev *input = hi->input;
809
810 /* Only initialize slots for MT input devices */
811 if (!test_bit(ABS_MT_POSITION_X, input->absbit))
812 return;
813
814 if (!td->maxcontacts)
815 td->maxcontacts = MT_DEFAULT_MAXCONTACT;
816
817 mt_post_parse(td);
818 if (td->serial_maybe)
819 mt_post_parse_default_settings(td);
820
821 if (cls->is_indirect)
822 td->mt_flags |= INPUT_MT_POINTER;
823
824 if (cls->quirks & MT_QUIRK_NOT_SEEN_MEANS_UP)
825 td->mt_flags |= INPUT_MT_DROP_UNUSED;
826
827 input_mt_init_slots(input, td->maxcontacts, td->mt_flags);
828
829 td->mt_flags = 0;
830 }
831
832 static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id)
833 {
834 int ret, i;
835 struct mt_device *td;
836 struct mt_class *mtclass = mt_classes; /* MT_CLS_DEFAULT */
837
838 for (i = 0; mt_classes[i].name ; i++) {
839 if (id->driver_data == mt_classes[i].name) {
840 mtclass = &(mt_classes[i]);
841 break;
842 }
843 }
844
845 /* This allows the driver to correctly support devices
846 * that emit events over several HID messages.
847 */
848 hdev->quirks |= HID_QUIRK_NO_INPUT_SYNC;
849
850 td = kzalloc(sizeof(struct mt_device), GFP_KERNEL);
851 if (!td) {
852 dev_err(&hdev->dev, "cannot allocate multitouch data\n");
853 return -ENOMEM;
854 }
855 td->mtclass = *mtclass;
856 td->inputmode = -1;
857 td->maxcontact_report_id = -1;
858 td->cc_index = -1;
859 hid_set_drvdata(hdev, td);
860
861 td->fields = kzalloc(sizeof(struct mt_fields), GFP_KERNEL);
862 if (!td->fields) {
863 dev_err(&hdev->dev, "cannot allocate multitouch fields data\n");
864 ret = -ENOMEM;
865 goto fail;
866 }
867
868 if (id->vendor == HID_ANY_ID && id->product == HID_ANY_ID)
869 td->serial_maybe = true;
870
871 ret = hid_parse(hdev);
872 if (ret != 0)
873 goto fail;
874
875 ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
876 if (ret)
877 goto fail;
878
879 ret = sysfs_create_group(&hdev->dev.kobj, &mt_attribute_group);
880
881 mt_set_maxcontacts(hdev);
882 mt_set_input_mode(hdev);
883
884 kfree(td->fields);
885 td->fields = NULL;
886
887 return 0;
888
889 fail:
890 kfree(td->fields);
891 kfree(td);
892 return ret;
893 }
894
895 #ifdef CONFIG_PM
896 static int mt_reset_resume(struct hid_device *hdev)
897 {
898 mt_set_maxcontacts(hdev);
899 mt_set_input_mode(hdev);
900 return 0;
901 }
902
903 static int mt_resume(struct hid_device *hdev)
904 {
905 struct usb_interface *intf;
906 struct usb_host_interface *interface;
907 struct usb_device *dev;
908
909 if (hdev->bus != BUS_USB)
910 return 0;
911
912 intf = to_usb_interface(hdev->dev.parent);
913 interface = intf->cur_altsetting;
914 dev = hid_to_usb_dev(hdev);
915
916 /* Some Elan legacy devices require SET_IDLE to be set on resume.
917 * It should be safe to send it to other devices too.
918 * Tested on 3M, Stantum, Cypress, Zytronic, eGalax, and Elan panels. */
919
920 usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
921 HID_REQ_SET_IDLE,
922 USB_TYPE_CLASS | USB_RECIP_INTERFACE,
923 0, interface->desc.bInterfaceNumber,
924 NULL, 0, USB_CTRL_SET_TIMEOUT);
925
926 return 0;
927 }
928 #endif
929
930 static void mt_remove(struct hid_device *hdev)
931 {
932 struct mt_device *td = hid_get_drvdata(hdev);
933 sysfs_remove_group(&hdev->dev.kobj, &mt_attribute_group);
934 hid_hw_stop(hdev);
935 kfree(td);
936 hid_set_drvdata(hdev, NULL);
937 }
938
939 static const struct hid_device_id mt_devices[] = {
940
941 /* 3M panels */
942 { .driver_data = MT_CLS_3M,
943 MT_USB_DEVICE(USB_VENDOR_ID_3M,
944 USB_DEVICE_ID_3M1968) },
945 { .driver_data = MT_CLS_3M,
946 MT_USB_DEVICE(USB_VENDOR_ID_3M,
947 USB_DEVICE_ID_3M2256) },
948 { .driver_data = MT_CLS_3M,
949 MT_USB_DEVICE(USB_VENDOR_ID_3M,
950 USB_DEVICE_ID_3M3266) },
951
952 /* ActionStar panels */
953 { .driver_data = MT_CLS_NSMU,
954 MT_USB_DEVICE(USB_VENDOR_ID_ACTIONSTAR,
955 USB_DEVICE_ID_ACTIONSTAR_1011) },
956
957 /* Atmel panels */
958 { .driver_data = MT_CLS_SERIAL,
959 MT_USB_DEVICE(USB_VENDOR_ID_ATMEL,
960 USB_DEVICE_ID_ATMEL_MULTITOUCH) },
961 { .driver_data = MT_CLS_SERIAL,
962 MT_USB_DEVICE(USB_VENDOR_ID_ATMEL,
963 USB_DEVICE_ID_ATMEL_MXT_DIGITIZER) },
964
965 /* Baanto multitouch devices */
966 { .driver_data = MT_CLS_NSMU,
967 MT_USB_DEVICE(USB_VENDOR_ID_BAANTO,
968 USB_DEVICE_ID_BAANTO_MT_190W2) },
969 /* Cando panels */
970 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
971 MT_USB_DEVICE(USB_VENDOR_ID_CANDO,
972 USB_DEVICE_ID_CANDO_MULTI_TOUCH) },
973 { .driver_data = MT_CLS_DUAL_CONTACT_NUMBER,
974 MT_USB_DEVICE(USB_VENDOR_ID_CANDO,
975 USB_DEVICE_ID_CANDO_MULTI_TOUCH_10_1) },
976 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
977 MT_USB_DEVICE(USB_VENDOR_ID_CANDO,
978 USB_DEVICE_ID_CANDO_MULTI_TOUCH_11_6) },
979 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
980 MT_USB_DEVICE(USB_VENDOR_ID_CANDO,
981 USB_DEVICE_ID_CANDO_MULTI_TOUCH_15_6) },
982
983 /* Chunghwa Telecom touch panels */
984 { .driver_data = MT_CLS_NSMU,
985 MT_USB_DEVICE(USB_VENDOR_ID_CHUNGHWAT,
986 USB_DEVICE_ID_CHUNGHWAT_MULTITOUCH) },
987
988 /* CVTouch panels */
989 { .driver_data = MT_CLS_NSMU,
990 MT_USB_DEVICE(USB_VENDOR_ID_CVTOUCH,
991 USB_DEVICE_ID_CVTOUCH_SCREEN) },
992
993 /* Cypress panel */
994 { .driver_data = MT_CLS_CYPRESS,
995 HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS,
996 USB_DEVICE_ID_CYPRESS_TRUETOUCH) },
997
998 /* eGalax devices (resistive) */
999 { .driver_data = MT_CLS_EGALAX,
1000 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1001 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_480D) },
1002 { .driver_data = MT_CLS_EGALAX,
1003 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1004 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_480E) },
1005
1006 /* eGalax devices (capacitive) */
1007 { .driver_data = MT_CLS_EGALAX,
1008 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1009 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_720C) },
1010 { .driver_data = MT_CLS_EGALAX_SERIAL,
1011 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1012 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7207) },
1013 { .driver_data = MT_CLS_EGALAX_SERIAL,
1014 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1015 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_725E) },
1016 { .driver_data = MT_CLS_EGALAX_SERIAL,
1017 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1018 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7224) },
1019 { .driver_data = MT_CLS_EGALAX_SERIAL,
1020 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1021 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_722A) },
1022 { .driver_data = MT_CLS_EGALAX,
1023 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1024 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_726B) },
1025 { .driver_data = MT_CLS_EGALAX_SERIAL,
1026 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1027 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7262) },
1028 { .driver_data = MT_CLS_EGALAX,
1029 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1030 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72A1) },
1031 { .driver_data = MT_CLS_EGALAX_SERIAL,
1032 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1033 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72AA) },
1034 { .driver_data = MT_CLS_EGALAX,
1035 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1036 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72FA) },
1037 { .driver_data = MT_CLS_EGALAX,
1038 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1039 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7302) },
1040 { .driver_data = MT_CLS_EGALAX_SERIAL,
1041 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1042 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7349) },
1043 { .driver_data = MT_CLS_EGALAX_SERIAL,
1044 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1045 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_73F7) },
1046 { .driver_data = MT_CLS_EGALAX_SERIAL,
1047 MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
1048 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_A001) },
1049 { .driver_data = MT_CLS_EGALAX,
1050 HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
1051 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7224) },
1052 { .driver_data = MT_CLS_EGALAX,
1053 HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
1054 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72D0) },
1055 { .driver_data = MT_CLS_EGALAX,
1056 HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
1057 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72C4) },
1058
1059 /* Elo TouchSystems IntelliTouch Plus panel */
1060 { .driver_data = MT_CLS_DUAL_CONTACT_ID,
1061 MT_USB_DEVICE(USB_VENDOR_ID_ELO,
1062 USB_DEVICE_ID_ELO_TS2515) },
1063
1064 /* Flatfrog Panels */
1065 { .driver_data = MT_CLS_FLATFROG,
1066 MT_USB_DEVICE(USB_VENDOR_ID_FLATFROG,
1067 USB_DEVICE_ID_MULTITOUCH_3200) },
1068
1069 /* GeneralTouch panel */
1070 { .driver_data = MT_CLS_GENERALTOUCH_TWOFINGERS,
1071 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
1072 USB_DEVICE_ID_GENERAL_TOUCH_WIN7_TWOFINGERS) },
1073 { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
1074 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
1075 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PWT_TENFINGERS) },
1076
1077 /* Gametel game controller */
1078 { .driver_data = MT_CLS_NSMU,
1079 MT_BT_DEVICE(USB_VENDOR_ID_FRUCTEL,
1080 USB_DEVICE_ID_GAMETEL_MT_MODE) },
1081
1082 /* GoodTouch panels */
1083 { .driver_data = MT_CLS_NSMU,
1084 MT_USB_DEVICE(USB_VENDOR_ID_GOODTOUCH,
1085 USB_DEVICE_ID_GOODTOUCH_000f) },
1086
1087 /* Hanvon panels */
1088 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID,
1089 MT_USB_DEVICE(USB_VENDOR_ID_HANVON_ALT,
1090 USB_DEVICE_ID_HANVON_ALT_MULTITOUCH) },
1091
1092 /* Ideacom panel */
1093 { .driver_data = MT_CLS_SERIAL,
1094 MT_USB_DEVICE(USB_VENDOR_ID_IDEACOM,
1095 USB_DEVICE_ID_IDEACOM_IDC6650) },
1096 { .driver_data = MT_CLS_SERIAL,
1097 MT_USB_DEVICE(USB_VENDOR_ID_IDEACOM,
1098 USB_DEVICE_ID_IDEACOM_IDC6651) },
1099
1100 /* Ilitek dual touch panel */
1101 { .driver_data = MT_CLS_NSMU,
1102 MT_USB_DEVICE(USB_VENDOR_ID_ILITEK,
1103 USB_DEVICE_ID_ILITEK_MULTITOUCH) },
1104
1105 /* IRTOUCH panels */
1106 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID,
1107 MT_USB_DEVICE(USB_VENDOR_ID_IRTOUCHSYSTEMS,
1108 USB_DEVICE_ID_IRTOUCH_INFRARED_USB) },
1109
1110 /* LG Display panels */
1111 { .driver_data = MT_CLS_DEFAULT,
1112 MT_USB_DEVICE(USB_VENDOR_ID_LG,
1113 USB_DEVICE_ID_LG_MULTITOUCH) },
1114
1115 /* Lumio panels */
1116 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
1117 MT_USB_DEVICE(USB_VENDOR_ID_LUMIO,
1118 USB_DEVICE_ID_CRYSTALTOUCH) },
1119 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
1120 MT_USB_DEVICE(USB_VENDOR_ID_LUMIO,
1121 USB_DEVICE_ID_CRYSTALTOUCH_DUAL) },
1122
1123 /* MosArt panels */
1124 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
1125 MT_USB_DEVICE(USB_VENDOR_ID_ASUS,
1126 USB_DEVICE_ID_ASUS_T91MT)},
1127 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
1128 MT_USB_DEVICE(USB_VENDOR_ID_ASUS,
1129 USB_DEVICE_ID_ASUSTEK_MULTITOUCH_YFO) },
1130 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
1131 MT_USB_DEVICE(USB_VENDOR_ID_TURBOX,
1132 USB_DEVICE_ID_TURBOX_TOUCHSCREEN_MOSART) },
1133
1134 /* Nexio panels */
1135 { .driver_data = MT_CLS_DEFAULT,
1136 MT_USB_DEVICE(USB_VENDOR_ID_NEXIO,
1137 USB_DEVICE_ID_NEXIO_MULTITOUCH_420)},
1138
1139 /* Panasonic panels */
1140 { .driver_data = MT_CLS_PANASONIC,
1141 MT_USB_DEVICE(USB_VENDOR_ID_PANASONIC,
1142 USB_DEVICE_ID_PANABOARD_UBT780) },
1143 { .driver_data = MT_CLS_PANASONIC,
1144 MT_USB_DEVICE(USB_VENDOR_ID_PANASONIC,
1145 USB_DEVICE_ID_PANABOARD_UBT880) },
1146
1147 /* Novatek Panel */
1148 { .driver_data = MT_CLS_NSMU,
1149 MT_USB_DEVICE(USB_VENDOR_ID_NOVATEK,
1150 USB_DEVICE_ID_NOVATEK_PCT) },
1151
1152 /* PenMount panels */
1153 { .driver_data = MT_CLS_CONFIDENCE,
1154 MT_USB_DEVICE(USB_VENDOR_ID_PENMOUNT,
1155 USB_DEVICE_ID_PENMOUNT_PCI) },
1156
1157 /* PixArt optical touch screen */
1158 { .driver_data = MT_CLS_INRANGE_CONTACTNUMBER,
1159 MT_USB_DEVICE(USB_VENDOR_ID_PIXART,
1160 USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN) },
1161 { .driver_data = MT_CLS_INRANGE_CONTACTNUMBER,
1162 MT_USB_DEVICE(USB_VENDOR_ID_PIXART,
1163 USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN1) },
1164 { .driver_data = MT_CLS_INRANGE_CONTACTNUMBER,
1165 MT_USB_DEVICE(USB_VENDOR_ID_PIXART,
1166 USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN2) },
1167
1168 /* PixCir-based panels */
1169 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID,
1170 MT_USB_DEVICE(USB_VENDOR_ID_HANVON,
1171 USB_DEVICE_ID_HANVON_MULTITOUCH) },
1172 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID,
1173 MT_USB_DEVICE(USB_VENDOR_ID_CANDO,
1174 USB_DEVICE_ID_CANDO_PIXCIR_MULTI_TOUCH) },
1175
1176 /* Quanta-based panels */
1177 { .driver_data = MT_CLS_CONFIDENCE_CONTACT_ID,
1178 MT_USB_DEVICE(USB_VENDOR_ID_QUANTA,
1179 USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH) },
1180 { .driver_data = MT_CLS_CONFIDENCE_CONTACT_ID,
1181 MT_USB_DEVICE(USB_VENDOR_ID_QUANTA,
1182 USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3001) },
1183 { .driver_data = MT_CLS_CONFIDENCE_CONTACT_ID,
1184 MT_USB_DEVICE(USB_VENDOR_ID_QUANTA,
1185 USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3008) },
1186
1187 /* Stantum panels */
1188 { .driver_data = MT_CLS_CONFIDENCE,
1189 MT_USB_DEVICE(USB_VENDOR_ID_STANTUM,
1190 USB_DEVICE_ID_MTP)},
1191 { .driver_data = MT_CLS_CONFIDENCE,
1192 MT_USB_DEVICE(USB_VENDOR_ID_STANTUM_STM,
1193 USB_DEVICE_ID_MTP_STM)},
1194 { .driver_data = MT_CLS_DEFAULT,
1195 MT_USB_DEVICE(USB_VENDOR_ID_STANTUM_SITRONIX,
1196 USB_DEVICE_ID_MTP_SITRONIX)},
1197
1198 /* TopSeed panels */
1199 { .driver_data = MT_CLS_TOPSEED,
1200 MT_USB_DEVICE(USB_VENDOR_ID_TOPSEED2,
1201 USB_DEVICE_ID_TOPSEED2_PERIPAD_701) },
1202
1203 /* Touch International panels */
1204 { .driver_data = MT_CLS_NSMU,
1205 MT_USB_DEVICE(USB_VENDOR_ID_TOUCH_INTL,
1206 USB_DEVICE_ID_TOUCH_INTL_MULTI_TOUCH) },
1207
1208 /* Unitec panels */
1209 { .driver_data = MT_CLS_NSMU,
1210 MT_USB_DEVICE(USB_VENDOR_ID_UNITEC,
1211 USB_DEVICE_ID_UNITEC_USB_TOUCH_0709) },
1212 { .driver_data = MT_CLS_NSMU,
1213 MT_USB_DEVICE(USB_VENDOR_ID_UNITEC,
1214 USB_DEVICE_ID_UNITEC_USB_TOUCH_0A19) },
1215 /* XAT */
1216 { .driver_data = MT_CLS_NSMU,
1217 MT_USB_DEVICE(USB_VENDOR_ID_XAT,
1218 USB_DEVICE_ID_XAT_CSR) },
1219
1220 /* Xiroku */
1221 { .driver_data = MT_CLS_NSMU,
1222 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1223 USB_DEVICE_ID_XIROKU_SPX) },
1224 { .driver_data = MT_CLS_NSMU,
1225 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1226 USB_DEVICE_ID_XIROKU_MPX) },
1227 { .driver_data = MT_CLS_NSMU,
1228 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1229 USB_DEVICE_ID_XIROKU_CSR) },
1230 { .driver_data = MT_CLS_NSMU,
1231 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1232 USB_DEVICE_ID_XIROKU_SPX1) },
1233 { .driver_data = MT_CLS_NSMU,
1234 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1235 USB_DEVICE_ID_XIROKU_MPX1) },
1236 { .driver_data = MT_CLS_NSMU,
1237 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1238 USB_DEVICE_ID_XIROKU_CSR1) },
1239 { .driver_data = MT_CLS_NSMU,
1240 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1241 USB_DEVICE_ID_XIROKU_SPX2) },
1242 { .driver_data = MT_CLS_NSMU,
1243 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1244 USB_DEVICE_ID_XIROKU_MPX2) },
1245 { .driver_data = MT_CLS_NSMU,
1246 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
1247 USB_DEVICE_ID_XIROKU_CSR2) },
1248
1249 /* Zytronic panels */
1250 { .driver_data = MT_CLS_SERIAL,
1251 MT_USB_DEVICE(USB_VENDOR_ID_ZYTRONIC,
1252 USB_DEVICE_ID_ZYTRONIC_ZXY100) },
1253
1254 /* Generic MT device */
1255 { HID_DEVICE(HID_BUS_ANY, HID_GROUP_MULTITOUCH, HID_ANY_ID, HID_ANY_ID) },
1256 { }
1257 };
1258 MODULE_DEVICE_TABLE(hid, mt_devices);
1259
1260 static const struct hid_usage_id mt_grabbed_usages[] = {
1261 { HID_ANY_ID, HID_ANY_ID, HID_ANY_ID },
1262 { HID_ANY_ID - 1, HID_ANY_ID - 1, HID_ANY_ID - 1}
1263 };
1264
1265 static struct hid_driver mt_driver = {
1266 .name = "hid-multitouch",
1267 .id_table = mt_devices,
1268 .probe = mt_probe,
1269 .remove = mt_remove,
1270 .input_mapping = mt_input_mapping,
1271 .input_mapped = mt_input_mapped,
1272 .input_configured = mt_input_configured,
1273 .feature_mapping = mt_feature_mapping,
1274 .usage_table = mt_grabbed_usages,
1275 .event = mt_event,
1276 .report = mt_report,
1277 #ifdef CONFIG_PM
1278 .reset_resume = mt_reset_resume,
1279 .resume = mt_resume,
1280 #endif
1281 };
1282 module_hid_driver(mt_driver);
Linux kernel - Deliverables
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