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ASoC: mxs: Add .owner to struct snd_soc_card
[deliverable/linux.git] / drivers / hid / hid-multitouch.c
CommitLineData
5519cab4
BT		 1/*
2 * HID driver for multitouch panels
3 *
4 * Copyright (c) 2010-2011 Stephane Chatty <chatty@enac.fr>
5 * Copyright (c) 2010-2011 Benjamin Tissoires <benjamin.tissoires@gmail.com>
6 * Copyright (c) 2010-2011 Ecole Nationale de l'Aviation Civile, France
7 *
4875ac11
RN		 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 *
f786bba4
BT		 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 *
5519cab4
BT		 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
38MODULE_AUTHOR("Stephane Chatty <chatty@enac.fr>");
ef2fafb3 39MODULE_AUTHOR("Benjamin Tissoires <benjamin.tissoires@gmail.com>");
5519cab4
BT		 40MODULE_DESCRIPTION("HID multitouch panels");
41MODULE_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)
2d93666e 48#define MT_QUIRK_CYPRESS (1 << 2)
5572da08 49#define MT_QUIRK_SLOT_IS_CONTACTNUMBER (1 << 3)
a062cc5a
SC		 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_EGALAX_XYZ_FIXUP (1 << 7)
54#define MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE (1 << 8)
5519cab4
BT		 55
56struct 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 bool seen_in_this_frame;/* has this slot been updated */
61};
62
63struct mt_device {
64 struct mt_slot curdata; /* placeholder of incoming data */
65 struct mt_class *mtclass; /* our mt device class */
66 unsigned last_field_index; /* last field index of the report */
67 unsigned last_slot_field; /* the last field of a slot */
b84bd27f 68 int last_mt_collection; /* last known mt-related collection */
5519cab4
BT		 69 __s8 inputmode; /* InputMode HID feature, -1 if non-existent */
70 __u8 num_received; /* how many contacts we received */
71 __u8 num_expected; /* expected last contact index */
9498f954 72 __u8 maxcontacts;
5519cab4 73 bool curvalid; /* is the current contact valid? */
9498f954 74 struct mt_slot *slots;
5519cab4
BT		 75};
76
77struct mt_class {
2d93666e 78 __s32 name; /* MT_CLS */
5519cab4
BT		 79 __s32 quirks;
80 __s32 sn_move; /* Signal/noise ratio for move events */
f786bba4
BT		 81 __s32 sn_width; /* Signal/noise ratio for width events */
82 __s32 sn_height; /* Signal/noise ratio for height events */
5519cab4
BT		 83 __s32 sn_pressure; /* Signal/noise ratio for pressure events */
84 __u8 maxcontacts;
85};
86
87/* classes of device behavior */
22408283
BT		 88#define MT_CLS_DEFAULT 0x0001
89
a062cc5a
SC		 90#define MT_CLS_SERIAL 0x0002
91#define MT_CLS_CONFIDENCE 0x0003
92#define MT_CLS_CONFIDENCE_MINUS_ONE 0x0004
93#define MT_CLS_DUAL_INRANGE_CONTACTID 0x0005
94#define MT_CLS_DUAL_INRANGE_CONTACTNUMBER 0x0006
95#define MT_CLS_DUAL_NSMU_CONTACTID 0x0007
22408283
BT		 96
97/* vendor specific classes */
98#define MT_CLS_3M 0x0101
99#define MT_CLS_CYPRESS 0x0102
100#define MT_CLS_EGALAX 0x0103
5519cab4 101
9498f954
BT		 102#define MT_DEFAULT_MAXCONTACT 10
103
5519cab4
BT		 104/*
105 * these device-dependent functions determine what slot corresponds
106 * to a valid contact that was just read.
107 */
108
a3b5e577
BT		 109static int cypress_compute_slot(struct mt_device *td)
110{
111 if (td->curdata.contactid != 0 || td->num_received == 0)
112 return td->curdata.contactid;
113 else
114 return -1;
115}
116
5519cab4
BT		 117static int find_slot_from_contactid(struct mt_device *td)
118{
119 int i;
9498f954 120 for (i = 0; i < td->maxcontacts; ++i) {
5519cab4
BT		 121 if (td->slots[i].contactid == td->curdata.contactid &&
122 td->slots[i].touch_state)
123 return i;
124 }
9498f954 125 for (i = 0; i < td->maxcontacts; ++i) {
5519cab4
BT		 126 if (!td->slots[i].seen_in_this_frame &&
127 !td->slots[i].touch_state)
128 return i;
129 }
5519cab4
BT		 130 /* should not occurs. If this happens that means
131 * that the device sent more touches that it says
132 * in the report descriptor. It is ignored then. */
2d93666e 133 return -1;
5519cab4
BT		 134}
135
136struct mt_class mt_classes[] = {
2d93666e 137 { .name = MT_CLS_DEFAULT,
9498f954 138 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP },
a062cc5a
SC		 139 { .name = MT_CLS_SERIAL,
140 .quirks = MT_QUIRK_ALWAYS_VALID},
22408283
BT		 141 { .name = MT_CLS_CONFIDENCE,
142 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE },
143 { .name = MT_CLS_CONFIDENCE_MINUS_ONE,
144 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE |
145 MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE },
1e9cf35b 146 { .name = MT_CLS_DUAL_INRANGE_CONTACTID,
2d93666e
BT		 147 .quirks = MT_QUIRK_VALID_IS_INRANGE |
148 MT_QUIRK_SLOT_IS_CONTACTID,
149 .maxcontacts = 2 },
1e9cf35b 150 { .name = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
2d93666e
BT		 151 .quirks = MT_QUIRK_VALID_IS_INRANGE |
152 MT_QUIRK_SLOT_IS_CONTACTNUMBER,
153 .maxcontacts = 2 },
22408283
BT		 154 { .name = MT_CLS_DUAL_NSMU_CONTACTID,
155 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP |
156 MT_QUIRK_SLOT_IS_CONTACTID,
157 .maxcontacts = 2 },
158
159 /*
160 * vendor specific classes
161 */
162 { .name = MT_CLS_3M,
163 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE |
164 MT_QUIRK_SLOT_IS_CONTACTID,
165 .sn_move = 2048,
166 .sn_width = 128,
167 .sn_height = 128 },
2d93666e
BT		 168 { .name = MT_CLS_CYPRESS,
169 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP |
170 MT_QUIRK_CYPRESS,
171 .maxcontacts = 10 },
4875ac11
RN		 172 { .name = MT_CLS_EGALAX,
173 .quirks = MT_QUIRK_SLOT_IS_CONTACTID |
174 MT_QUIRK_VALID_IS_INRANGE |
175 MT_QUIRK_EGALAX_XYZ_FIXUP,
176 .maxcontacts = 2,
177 .sn_move = 4096,
178 .sn_pressure = 32,
179 },
043b403a 180
2d93666e 181 { }
5519cab4
BT		 182};
183
f635bd11 184static void mt_feature_mapping(struct hid_device *hdev,
5519cab4
BT		 185 struct hid_field *field, struct hid_usage *usage)
186{
9498f954
BT		 187 struct mt_device *td = hid_get_drvdata(hdev);
188
189 switch (usage->hid) {
190 case HID_DG_INPUTMODE:
5519cab4 191 td->inputmode = field->report->id;
9498f954
BT		 192 break;
193 case HID_DG_CONTACTMAX:
194 td->maxcontacts = field->value[0];
195 if (td->mtclass->maxcontacts)
196 /* check if the maxcontacts is given by the class */
197 td->maxcontacts = td->mtclass->maxcontacts;
198
199 break;
5519cab4
BT		 200 }
201}
202
203static void set_abs(struct input_dev *input, unsigned int code,
204 struct hid_field *field, int snratio)
205{
206 int fmin = field->logical_minimum;
207 int fmax = field->logical_maximum;
208 int fuzz = snratio ? (fmax - fmin) / snratio : 0;
209 input_set_abs_params(input, code, fmin, fmax, fuzz, 0);
210}
211
212static int mt_input_mapping(struct hid_device *hdev, struct hid_input *hi,
213 struct hid_field *field, struct hid_usage *usage,
214 unsigned long **bit, int *max)
215{
216 struct mt_device *td = hid_get_drvdata(hdev);
217 struct mt_class *cls = td->mtclass;
4875ac11
RN		 218 __s32 quirks = cls->quirks;
219
658d4aed
JB		 220 /* Only map fields from TouchScreen or TouchPad collections.
221 * We need to ignore fields that belong to other collections
222 * such as Mouse that might have the same GenericDesktop usages. */
223 if (field->application == HID_DG_TOUCHSCREEN)
224 set_bit(INPUT_PROP_DIRECT, hi->input->propbit);
225 else if (field->application == HID_DG_TOUCHPAD)
226 set_bit(INPUT_PROP_POINTER, hi->input->propbit);
227 else
228 return 0;
229
5519cab4
BT		 230 switch (usage->hid & HID_USAGE_PAGE) {
231
232 case HID_UP_GENDESK:
233 switch (usage->hid) {
234 case HID_GD_X:
4875ac11
RN		 235 if (quirks & MT_QUIRK_EGALAX_XYZ_FIXUP)
236 field->logical_maximum = 32760;
5519cab4
BT		 237 hid_map_usage(hi, usage, bit, max,
238 EV_ABS, ABS_MT_POSITION_X);
239 set_abs(hi->input, ABS_MT_POSITION_X, field,
240 cls->sn_move);
241 /* touchscreen emulation */
242 set_abs(hi->input, ABS_X, field, cls->sn_move);
b84bd27f
BT		 243 if (td->last_mt_collection == usage->collection_index) {
244 td->last_slot_field = usage->hid;
245 td->last_field_index = field->index;
246 }
5519cab4
BT		 247 return 1;
248 case HID_GD_Y:
4875ac11
RN		 249 if (quirks & MT_QUIRK_EGALAX_XYZ_FIXUP)
250 field->logical_maximum = 32760;
5519cab4
BT		 251 hid_map_usage(hi, usage, bit, max,
252 EV_ABS, ABS_MT_POSITION_Y);
253 set_abs(hi->input, ABS_MT_POSITION_Y, field,
254 cls->sn_move);
255 /* touchscreen emulation */
256 set_abs(hi->input, ABS_Y, field, cls->sn_move);
b84bd27f
BT		 257 if (td->last_mt_collection == usage->collection_index) {
258 td->last_slot_field = usage->hid;
259 td->last_field_index = field->index;
260 }
5519cab4
BT		 261 return 1;
262 }
263 return 0;
264
265 case HID_UP_DIGITIZER:
266 switch (usage->hid) {
267 case HID_DG_INRANGE:
b84bd27f
BT		 268 if (td->last_mt_collection == usage->collection_index) {
269 td->last_slot_field = usage->hid;
270 td->last_field_index = field->index;
271 }
5519cab4
BT		 272 return 1;
273 case HID_DG_CONFIDENCE:
b84bd27f
BT		 274 if (td->last_mt_collection == usage->collection_index) {
275 td->last_slot_field = usage->hid;
276 td->last_field_index = field->index;
277 }
5519cab4
BT		 278 return 1;
279 case HID_DG_TIPSWITCH:
280 hid_map_usage(hi, usage, bit, max, EV_KEY, BTN_TOUCH);
281 input_set_capability(hi->input, EV_KEY, BTN_TOUCH);
b84bd27f
BT		 282 if (td->last_mt_collection == usage->collection_index) {
283 td->last_slot_field = usage->hid;
284 td->last_field_index = field->index;
285 }
5519cab4
BT		 286 return 1;
287 case HID_DG_CONTACTID:
50bc03ab
BT		 288 if (!td->maxcontacts)
289 td->maxcontacts = MT_DEFAULT_MAXCONTACT;
9498f954 290 input_mt_init_slots(hi->input, td->maxcontacts);
5519cab4 291 td->last_slot_field = usage->hid;
2955caed 292 td->last_field_index = field->index;
b84bd27f 293 td->last_mt_collection = usage->collection_index;
5519cab4
BT		 294 return 1;
295 case HID_DG_WIDTH:
296 hid_map_usage(hi, usage, bit, max,
297 EV_ABS, ABS_MT_TOUCH_MAJOR);
f786bba4
BT		 298 set_abs(hi->input, ABS_MT_TOUCH_MAJOR, field,
299 cls->sn_width);
b84bd27f
BT		 300 if (td->last_mt_collection == usage->collection_index) {
301 td->last_slot_field = usage->hid;
302 td->last_field_index = field->index;
303 }
5519cab4
BT		 304 return 1;
305 case HID_DG_HEIGHT:
306 hid_map_usage(hi, usage, bit, max,
307 EV_ABS, ABS_MT_TOUCH_MINOR);
f786bba4
BT		 308 set_abs(hi->input, ABS_MT_TOUCH_MINOR, field,
309 cls->sn_height);
1e648a13
BT		 310 input_set_abs_params(hi->input,
311 ABS_MT_ORIENTATION, 0, 1, 0, 0);
b84bd27f
BT		 312 if (td->last_mt_collection == usage->collection_index) {
313 td->last_slot_field = usage->hid;
314 td->last_field_index = field->index;
315 }
5519cab4
BT		 316 return 1;
317 case HID_DG_TIPPRESSURE:
4875ac11
RN		 318 if (quirks & MT_QUIRK_EGALAX_XYZ_FIXUP)
319 field->logical_minimum = 0;
5519cab4
BT		 320 hid_map_usage(hi, usage, bit, max,
321 EV_ABS, ABS_MT_PRESSURE);
322 set_abs(hi->input, ABS_MT_PRESSURE, field,
323 cls->sn_pressure);
324 /* touchscreen emulation */
325 set_abs(hi->input, ABS_PRESSURE, field,
326 cls->sn_pressure);
b84bd27f
BT		 327 if (td->last_mt_collection == usage->collection_index) {
328 td->last_slot_field = usage->hid;
329 td->last_field_index = field->index;
330 }
5519cab4
BT		 331 return 1;
332 case HID_DG_CONTACTCOUNT:
b84bd27f
BT		 333 if (td->last_mt_collection == usage->collection_index)
334 td->last_field_index = field->index;
5519cab4
BT		 335 return 1;
336 case HID_DG_CONTACTMAX:
337 /* we don't set td->last_slot_field as contactcount and
338 * contact max are global to the report */
b84bd27f
BT		 339 if (td->last_mt_collection == usage->collection_index)
340 td->last_field_index = field->index;
5519cab4
BT		 341 return -1;
342 }
343 /* let hid-input decide for the others */
344 return 0;
345
346 case 0xff000000:
347 /* we do not want to map these: no input-oriented meaning */
348 return -1;
349 }
350
351 return 0;
352}
353
354static int mt_input_mapped(struct hid_device *hdev, struct hid_input *hi,
355 struct hid_field *field, struct hid_usage *usage,
356 unsigned long **bit, int *max)
357{
358 if (usage->type == EV_KEY || usage->type == EV_ABS)
359 set_bit(usage->type, hi->input->evbit);
360
361 return -1;
362}
363
364static int mt_compute_slot(struct mt_device *td)
365{
2d93666e 366 __s32 quirks = td->mtclass->quirks;
5519cab4 367
2d93666e
BT		 368 if (quirks & MT_QUIRK_SLOT_IS_CONTACTID)
369 return td->curdata.contactid;
5519cab4 370
2d93666e 371 if (quirks & MT_QUIRK_CYPRESS)
a3b5e577
BT		 372 return cypress_compute_slot(td);
373
2d93666e
BT		 374 if (quirks & MT_QUIRK_SLOT_IS_CONTACTNUMBER)
375 return td->num_received;
5572da08 376
4a6ee685
BT		 377 if (quirks & MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE)
378 return td->curdata.contactid - 1;
379
5519cab4
BT		 380 return find_slot_from_contactid(td);
381}
382
383/*
384 * this function is called when a whole contact has been processed,
385 * so that it can assign it to a slot and store the data there
386 */
387static void mt_complete_slot(struct mt_device *td)
388{
2d93666e 389 td->curdata.seen_in_this_frame = true;
5519cab4 390 if (td->curvalid) {
5519cab4
BT		 391 int slotnum = mt_compute_slot(td);
392
9498f954 393 if (slotnum >= 0 && slotnum < td->maxcontacts)
2d93666e 394 td->slots[slotnum] = td->curdata;
5519cab4
BT		 395 }
396 td->num_received++;
397}
398
399
400/*
401 * this function is called when a whole packet has been received and processed,
402 * so that it can decide what to send to the input layer.
403 */
404static void mt_emit_event(struct mt_device *td, struct input_dev *input)
405{
406 int i;
407
9498f954 408 for (i = 0; i < td->maxcontacts; ++i) {
5519cab4
BT		 409 struct mt_slot *s = &(td->slots[i]);
410 if ((td->mtclass->quirks & MT_QUIRK_NOT_SEEN_MEANS_UP) &&
411 !s->seen_in_this_frame) {
5519cab4
BT		 412 s->touch_state = false;
413 }
414
415 input_mt_slot(input, i);
416 input_mt_report_slot_state(input, MT_TOOL_FINGER,
417 s->touch_state);
2d93666e 418 if (s->touch_state) {
f786bba4
BT		 419 /* this finger is on the screen */
420 int wide = (s->w > s->h);
421 /* divided by two to match visual scale of touch */
422 int major = max(s->w, s->h) >> 1;
423 int minor = min(s->w, s->h) >> 1;
424
2d93666e
BT		 425 input_event(input, EV_ABS, ABS_MT_POSITION_X, s->x);
426 input_event(input, EV_ABS, ABS_MT_POSITION_Y, s->y);
f786bba4 427 input_event(input, EV_ABS, ABS_MT_ORIENTATION, wide);
2d93666e 428 input_event(input, EV_ABS, ABS_MT_PRESSURE, s->p);
f786bba4
BT		 429 input_event(input, EV_ABS, ABS_MT_TOUCH_MAJOR, major);
430 input_event(input, EV_ABS, ABS_MT_TOUCH_MINOR, minor);
2d93666e 431 }
5519cab4
BT		 432 s->seen_in_this_frame = false;
433
434 }
435
436 input_mt_report_pointer_emulation(input, true);
437 input_sync(input);
438 td->num_received = 0;
439}
440
441
442
443static int mt_event(struct hid_device *hid, struct hid_field *field,
444 struct hid_usage *usage, __s32 value)
445{
446 struct mt_device *td = hid_get_drvdata(hid);
2d93666e 447 __s32 quirks = td->mtclass->quirks;
5519cab4 448
9498f954 449 if (hid->claimed & HID_CLAIMED_INPUT && td->slots) {
5519cab4
BT		 450 switch (usage->hid) {
451 case HID_DG_INRANGE:
a062cc5a
SC		 452 if (quirks & MT_QUIRK_ALWAYS_VALID)
453 td->curvalid = true;
454 else if (quirks & MT_QUIRK_VALID_IS_INRANGE)
2d93666e 455 td->curvalid = value;
5519cab4
BT		 456 break;
457 case HID_DG_TIPSWITCH:
2d93666e
BT		 458 if (quirks & MT_QUIRK_NOT_SEEN_MEANS_UP)
459 td->curvalid = value;
5519cab4
BT		 460 td->curdata.touch_state = value;
461 break;
462 case HID_DG_CONFIDENCE:
2d93666e
BT		 463 if (quirks & MT_QUIRK_VALID_IS_CONFIDENCE)
464 td->curvalid = value;
5519cab4
BT		 465 break;
466 case HID_DG_CONTACTID:
467 td->curdata.contactid = value;
468 break;
469 case HID_DG_TIPPRESSURE:
470 td->curdata.p = value;
471 break;
472 case HID_GD_X:
473 td->curdata.x = value;
474 break;
475 case HID_GD_Y:
476 td->curdata.y = value;
477 break;
478 case HID_DG_WIDTH:
479 td->curdata.w = value;
480 break;
481 case HID_DG_HEIGHT:
482 td->curdata.h = value;
483 break;
484 case HID_DG_CONTACTCOUNT:
485 /*
2d93666e
BT		 486 * Includes multi-packet support where subsequent
487 * packets are sent with zero contactcount.
5519cab4
BT		 488 */
489 if (value)
2d93666e 490 td->num_expected = value;
5519cab4
BT		 491 break;
492
493 default:
494 /* fallback to the generic hidinput handling */
495 return 0;
496 }
5519cab4 497
f153fc39 498 if (usage->hid == td->last_slot_field) {
2d93666e 499 mt_complete_slot(td);
f153fc39 500 }
2d93666e
BT		 501
502 if (field->index == td->last_field_index
503 && td->num_received >= td->num_expected)
504 mt_emit_event(td, field->hidinput->input);
5519cab4 505
2d93666e 506 }
5519cab4
BT		 507
508 /* we have handled the hidinput part, now remains hiddev */
509 if (hid->claimed & HID_CLAIMED_HIDDEV && hid->hiddev_hid_event)
510 hid->hiddev_hid_event(hid, field, usage, value);
511
512 return 1;
513}
514
515static void mt_set_input_mode(struct hid_device *hdev)
516{
517 struct mt_device *td = hid_get_drvdata(hdev);
518 struct hid_report *r;
519 struct hid_report_enum *re;
520
521 if (td->inputmode < 0)
522 return;
523
524 re = &(hdev->report_enum[HID_FEATURE_REPORT]);
525 r = re->report_id_hash[td->inputmode];
526 if (r) {
527 r->field[0]->value[0] = 0x02;
528 usbhid_submit_report(hdev, r, USB_DIR_OUT);
529 }
530}
531
532static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id)
533{
2d93666e 534 int ret, i;
5519cab4 535 struct mt_device *td;
2d93666e
BT		 536 struct mt_class *mtclass = mt_classes; /* MT_CLS_DEFAULT */
537
538 for (i = 0; mt_classes[i].name ; i++) {
539 if (id->driver_data == mt_classes[i].name) {
540 mtclass = &(mt_classes[i]);
541 break;
542 }
543 }
5519cab4 544
d682bd7f
HR		 545 /* This allows the driver to correctly support devices
546 * that emit events over several HID messages.
547 */
548 hdev->quirks |= HID_QUIRK_NO_INPUT_SYNC;
5519cab4 549
9498f954 550 td = kzalloc(sizeof(struct mt_device), GFP_KERNEL);
5519cab4
BT		 551 if (!td) {
552 dev_err(&hdev->dev, "cannot allocate multitouch data\n");
553 return -ENOMEM;
554 }
555 td->mtclass = mtclass;
556 td->inputmode = -1;
b84bd27f 557 td->last_mt_collection = -1;
5519cab4
BT		 558 hid_set_drvdata(hdev, td);
559
560 ret = hid_parse(hdev);
561 if (ret != 0)
562 goto fail;
563
564 ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
2d93666e 565 if (ret)
5519cab4
BT		 566 goto fail;
567
9498f954
BT		 568 td->slots = kzalloc(td->maxcontacts * sizeof(struct mt_slot),
569 GFP_KERNEL);
570 if (!td->slots) {
571 dev_err(&hdev->dev, "cannot allocate multitouch slots\n");
572 hid_hw_stop(hdev);
573 ret = -ENOMEM;
574 goto fail;
575 }
576
5519cab4
BT		 577 mt_set_input_mode(hdev);
578
579 return 0;
580
581fail:
582 kfree(td);
583 return ret;
584}
585
586#ifdef CONFIG_PM
587static int mt_reset_resume(struct hid_device *hdev)
588{
589 mt_set_input_mode(hdev);
590 return 0;
591}
592#endif
593
594static void mt_remove(struct hid_device *hdev)
595{
596 struct mt_device *td = hid_get_drvdata(hdev);
597 hid_hw_stop(hdev);
9498f954 598 kfree(td->slots);
5519cab4
BT		 599 kfree(td);
600 hid_set_drvdata(hdev, NULL);
601}
602
603static const struct hid_device_id mt_devices[] = {
604
f786bba4
BT		 605 /* 3M panels */
606 { .driver_data = MT_CLS_3M,
607 HID_USB_DEVICE(USB_VENDOR_ID_3M,
608 USB_DEVICE_ID_3M1968) },
609 { .driver_data = MT_CLS_3M,
610 HID_USB_DEVICE(USB_VENDOR_ID_3M,
611 USB_DEVICE_ID_3M2256) },
612
e6aac342
BT		 613 /* ActionStar panels */
614 { .driver_data = MT_CLS_DEFAULT,
615 HID_USB_DEVICE(USB_VENDOR_ID_ACTIONSTAR,
616 USB_DEVICE_ID_ACTIONSTAR_1011) },
617
a841b62c
BT		 618 /* Cando panels */
619 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
620 HID_USB_DEVICE(USB_VENDOR_ID_CANDO,
621 USB_DEVICE_ID_CANDO_MULTI_TOUCH) },
622 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
623 HID_USB_DEVICE(USB_VENDOR_ID_CANDO,
624 USB_DEVICE_ID_CANDO_MULTI_TOUCH_10_1) },
625 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
626 HID_USB_DEVICE(USB_VENDOR_ID_CANDO,
627 USB_DEVICE_ID_CANDO_MULTI_TOUCH_11_6) },
628 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
629 HID_USB_DEVICE(USB_VENDOR_ID_CANDO,
630 USB_DEVICE_ID_CANDO_MULTI_TOUCH_15_6) },
631
942fd422
AZ		 632 /* Chunghwa Telecom touch panels */
633 { .driver_data = MT_CLS_DEFAULT,
634 HID_USB_DEVICE(USB_VENDOR_ID_CHUNGHWAT,
635 USB_DEVICE_ID_CHUNGHWAT_MULTITOUCH) },
636
79603dc9
BT		 637 /* CVTouch panels */
638 { .driver_data = MT_CLS_DEFAULT,
639 HID_USB_DEVICE(USB_VENDOR_ID_CVTOUCH,
640 USB_DEVICE_ID_CVTOUCH_SCREEN) },
641
a3b5e577
BT		 642 /* Cypress panel */
643 { .driver_data = MT_CLS_CYPRESS,
644 HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS,
645 USB_DEVICE_ID_CYPRESS_TRUETOUCH) },
646
22408283
BT		 647 /* eGalax devices (resistive) */
648 { .driver_data = MT_CLS_EGALAX,
649 HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
650 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH) },
651 { .driver_data = MT_CLS_EGALAX,
652 HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
653 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH3) },
654
655 /* eGalax devices (capacitive) */
656 { .driver_data = MT_CLS_EGALAX,
657 HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
658 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH1) },
659 { .driver_data = MT_CLS_EGALAX,
660 HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
661 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH2) },
662 { .driver_data = MT_CLS_EGALAX,
663 HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
664 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH4) },
665
c04abeef
BT		 666 /* Elo TouchSystems IntelliTouch Plus panel */
667 { .driver_data = MT_CLS_DUAL_NSMU_CONTACTID,
668 HID_USB_DEVICE(USB_VENDOR_ID_ELO,
669 USB_DEVICE_ID_ELO_TS2515) },
670
5572da08 671 /* GeneralTouch panel */
1e9cf35b 672 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
5572da08
BT		 673 HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
674 USB_DEVICE_ID_GENERAL_TOUCH_WIN7_TWOFINGERS) },
675
ee0fbd14
BT		 676 /* GoodTouch panels */
677 { .driver_data = MT_CLS_DEFAULT,
678 HID_USB_DEVICE(USB_VENDOR_ID_GOODTOUCH,
679 USB_DEVICE_ID_GOODTOUCH_000f) },
680
a062cc5a
SC		 681 /* Ideacom panel */
682 { .driver_data = MT_CLS_SERIAL,
683 HID_USB_DEVICE(USB_VENDOR_ID_IDEACOM,
684 USB_DEVICE_ID_IDEACOM_IDC6650) },
685
4e61f0d7
AZ		 686 /* Ilitek dual touch panel */
687 { .driver_data = MT_CLS_DEFAULT,
688 HID_USB_DEVICE(USB_VENDOR_ID_ILITEK,
689 USB_DEVICE_ID_ILITEK_MULTITOUCH) },
690
4dfcced8
BT		 691 /* IRTOUCH panels */
692 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID,
693 HID_USB_DEVICE(USB_VENDOR_ID_IRTOUCHSYSTEMS,
694 USB_DEVICE_ID_IRTOUCH_INFRARED_USB) },
695
c50bb1a4
JB		 696 /* LG Display panels */
697 { .driver_data = MT_CLS_DEFAULT,
698 HID_USB_DEVICE(USB_VENDOR_ID_LG,
699 USB_DEVICE_ID_LG_MULTITOUCH) },
700
df167c4a
BT		 701 /* Lumio panels */
702 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
703 HID_USB_DEVICE(USB_VENDOR_ID_LUMIO,
704 USB_DEVICE_ID_CRYSTALTOUCH) },
c3ead6de
BT		 705 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
706 HID_USB_DEVICE(USB_VENDOR_ID_LUMIO,
707 USB_DEVICE_ID_CRYSTALTOUCH_DUAL) },
df167c4a 708
4a6ee685
BT		 709 /* MosArt panels */
710 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
711 HID_USB_DEVICE(USB_VENDOR_ID_ASUS,
712 USB_DEVICE_ID_ASUS_T91MT)},
713 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
714 HID_USB_DEVICE(USB_VENDOR_ID_ASUS,
715 USB_DEVICE_ID_ASUSTEK_MULTITOUCH_YFO) },
716 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
717 HID_USB_DEVICE(USB_VENDOR_ID_TURBOX,
718 USB_DEVICE_ID_TURBOX_TOUCHSCREEN_MOSART) },
719
6ab3a9a6
JS		 720 /* PenMount panels */
721 { .driver_data = MT_CLS_CONFIDENCE,
722 HID_USB_DEVICE(USB_VENDOR_ID_PENMOUNT,
723 USB_DEVICE_ID_PENMOUNT_PCI) },
724
5519cab4 725 /* PixCir-based panels */
1e9cf35b 726 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID,
5519cab4
BT		 727 HID_USB_DEVICE(USB_VENDOR_ID_HANVON,
728 USB_DEVICE_ID_HANVON_MULTITOUCH) },
1e9cf35b 729 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID,
5519cab4
BT		 730 HID_USB_DEVICE(USB_VENDOR_ID_CANDO,
731 USB_DEVICE_ID_CANDO_PIXCIR_MULTI_TOUCH) },
732
043b403a 733 /* Stantum panels */
bf5af9b5 734 { .driver_data = MT_CLS_CONFIDENCE,
043b403a
BT		 735 HID_USB_DEVICE(USB_VENDOR_ID_STANTUM,
736 USB_DEVICE_ID_MTP)},
bf5af9b5 737 { .driver_data = MT_CLS_CONFIDENCE,
85a60082 738 HID_USB_DEVICE(USB_VENDOR_ID_STANTUM_STM,
043b403a 739 USB_DEVICE_ID_MTP_STM)},
bf5af9b5 740 { .driver_data = MT_CLS_CONFIDENCE,
85a60082 741 HID_USB_DEVICE(USB_VENDOR_ID_STANTUM_SITRONIX,
043b403a
BT		 742 USB_DEVICE_ID_MTP_SITRONIX)},
743
5e74e56d
BT		 744 /* Touch International panels */
745 { .driver_data = MT_CLS_DEFAULT,
746 HID_USB_DEVICE(USB_VENDOR_ID_TOUCH_INTL,
747 USB_DEVICE_ID_TOUCH_INTL_MULTI_TOUCH) },
748
617b64f9
BT		 749 /* Unitec panels */
750 { .driver_data = MT_CLS_DEFAULT,
751 HID_USB_DEVICE(USB_VENDOR_ID_UNITEC,
752 USB_DEVICE_ID_UNITEC_USB_TOUCH_0709) },
753 { .driver_data = MT_CLS_DEFAULT,
754 HID_USB_DEVICE(USB_VENDOR_ID_UNITEC,
755 USB_DEVICE_ID_UNITEC_USB_TOUCH_0A19) },
bc8a2a9b 756 /* XAT */
757 { .driver_data = MT_CLS_DEFAULT,
758 HID_USB_DEVICE(USB_VENDOR_ID_XAT,
759 USB_DEVICE_ID_XAT_CSR) },
617b64f9 760
5519cab4
BT		 761 { }
762};
763MODULE_DEVICE_TABLE(hid, mt_devices);
764
765static const struct hid_usage_id mt_grabbed_usages[] = {
766 { HID_ANY_ID, HID_ANY_ID, HID_ANY_ID },
767 { HID_ANY_ID - 1, HID_ANY_ID - 1, HID_ANY_ID - 1}
768};
769
770static struct hid_driver mt_driver = {
771 .name = "hid-multitouch",
772 .id_table = mt_devices,
773 .probe = mt_probe,
774 .remove = mt_remove,
775 .input_mapping = mt_input_mapping,
776 .input_mapped = mt_input_mapped,
777 .feature_mapping = mt_feature_mapping,
778 .usage_table = mt_grabbed_usages,
779 .event = mt_event,
780#ifdef CONFIG_PM
781 .reset_resume = mt_reset_resume,
782#endif
783};
784
785static int __init mt_init(void)
786{
787 return hid_register_driver(&mt_driver);
788}
789
790static void __exit mt_exit(void)
791{
792 hid_unregister_driver(&mt_driver);
793}
794
795module_init(mt_init);
796module_exit(mt_exit);
Linux kernel - Deliverables
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