projects / deliverable / linux.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
drm/radeon/kms/DCE4.1: fix Select_CrtcSource EncodeMode setting for DP bridges (v2)
[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)
2d93666e
BT		 50#define MT_QUIRK_VALID_IS_INRANGE (1 << 4)
51#define MT_QUIRK_VALID_IS_CONFIDENCE (1 << 5)
4875ac11 52#define MT_QUIRK_EGALAX_XYZ_FIXUP (1 << 6)
4a6ee685 53#define MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE (1 << 7)
5519cab4
BT		 54
55struct mt_slot {
56 __s32 x, y, p, w, h;
57 __s32 contactid; /* the device ContactID assigned to this slot */
58 bool touch_state; /* is the touch valid? */
59 bool seen_in_this_frame;/* has this slot been updated */
60};
61
62struct mt_device {
63 struct mt_slot curdata; /* placeholder of incoming data */
64 struct mt_class *mtclass; /* our mt device class */
65 unsigned last_field_index; /* last field index of the report */
66 unsigned last_slot_field; /* the last field of a slot */
b84bd27f 67 int last_mt_collection; /* last known mt-related collection */
5519cab4
BT		 68 __s8 inputmode; /* InputMode HID feature, -1 if non-existent */
69 __u8 num_received; /* how many contacts we received */
70 __u8 num_expected; /* expected last contact index */
9498f954 71 __u8 maxcontacts;
5519cab4 72 bool curvalid; /* is the current contact valid? */
9498f954 73 struct mt_slot *slots;
5519cab4
BT		 74};
75
76struct mt_class {
2d93666e 77 __s32 name; /* MT_CLS */
5519cab4
BT		 78 __s32 quirks;
79 __s32 sn_move; /* Signal/noise ratio for move events */
f786bba4
BT		 80 __s32 sn_width; /* Signal/noise ratio for width events */
81 __s32 sn_height; /* Signal/noise ratio for height events */
5519cab4
BT		 82 __s32 sn_pressure; /* Signal/noise ratio for pressure events */
83 __u8 maxcontacts;
84};
85
86/* classes of device behavior */
22408283
BT		 87#define MT_CLS_DEFAULT 0x0001
88
89#define MT_CLS_CONFIDENCE 0x0002
90#define MT_CLS_CONFIDENCE_MINUS_ONE 0x0003
91#define MT_CLS_DUAL_INRANGE_CONTACTID 0x0004
92#define MT_CLS_DUAL_INRANGE_CONTACTNUMBER 0x0005
93#define MT_CLS_DUAL_NSMU_CONTACTID 0x0006
94
95/* vendor specific classes */
96#define MT_CLS_3M 0x0101
97#define MT_CLS_CYPRESS 0x0102
98#define MT_CLS_EGALAX 0x0103
5519cab4 99
9498f954
BT		 100#define MT_DEFAULT_MAXCONTACT 10
101
5519cab4
BT		 102/*
103 * these device-dependent functions determine what slot corresponds
104 * to a valid contact that was just read.
105 */
106
a3b5e577
BT		 107static int cypress_compute_slot(struct mt_device *td)
108{
109 if (td->curdata.contactid != 0 || td->num_received == 0)
110 return td->curdata.contactid;
111 else
112 return -1;
113}
114
5519cab4
BT		 115static int find_slot_from_contactid(struct mt_device *td)
116{
117 int i;
9498f954 118 for (i = 0; i < td->maxcontacts; ++i) {
5519cab4
BT		 119 if (td->slots[i].contactid == td->curdata.contactid &&
120 td->slots[i].touch_state)
121 return i;
122 }
9498f954 123 for (i = 0; i < td->maxcontacts; ++i) {
5519cab4
BT		 124 if (!td->slots[i].seen_in_this_frame &&
125 !td->slots[i].touch_state)
126 return i;
127 }
5519cab4
BT		 128 /* should not occurs. If this happens that means
129 * that the device sent more touches that it says
130 * in the report descriptor. It is ignored then. */
2d93666e 131 return -1;
5519cab4
BT		 132}
133
134struct mt_class mt_classes[] = {
2d93666e 135 { .name = MT_CLS_DEFAULT,
9498f954 136 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP },
22408283
BT		 137 { .name = MT_CLS_CONFIDENCE,
138 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE },
139 { .name = MT_CLS_CONFIDENCE_MINUS_ONE,
140 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE |
141 MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE },
1e9cf35b 142 { .name = MT_CLS_DUAL_INRANGE_CONTACTID,
2d93666e
BT		 143 .quirks = MT_QUIRK_VALID_IS_INRANGE |
144 MT_QUIRK_SLOT_IS_CONTACTID,
145 .maxcontacts = 2 },
1e9cf35b 146 { .name = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
2d93666e
BT		 147 .quirks = MT_QUIRK_VALID_IS_INRANGE |
148 MT_QUIRK_SLOT_IS_CONTACTNUMBER,
149 .maxcontacts = 2 },
22408283
BT		 150 { .name = MT_CLS_DUAL_NSMU_CONTACTID,
151 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP |
152 MT_QUIRK_SLOT_IS_CONTACTID,
153 .maxcontacts = 2 },
154
155 /*
156 * vendor specific classes
157 */
158 { .name = MT_CLS_3M,
159 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE |
160 MT_QUIRK_SLOT_IS_CONTACTID,
161 .sn_move = 2048,
162 .sn_width = 128,
163 .sn_height = 128 },
2d93666e
BT		 164 { .name = MT_CLS_CYPRESS,
165 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP |
166 MT_QUIRK_CYPRESS,
167 .maxcontacts = 10 },
4875ac11
RN		 168 { .name = MT_CLS_EGALAX,
169 .quirks = MT_QUIRK_SLOT_IS_CONTACTID |
170 MT_QUIRK_VALID_IS_INRANGE |
171 MT_QUIRK_EGALAX_XYZ_FIXUP,
172 .maxcontacts = 2,
173 .sn_move = 4096,
174 .sn_pressure = 32,
175 },
043b403a 176
2d93666e 177 { }
5519cab4
BT		 178};
179
f635bd11 180static void mt_feature_mapping(struct hid_device *hdev,
5519cab4
BT		 181 struct hid_field *field, struct hid_usage *usage)
182{
9498f954
BT		 183 struct mt_device *td = hid_get_drvdata(hdev);
184
185 switch (usage->hid) {
186 case HID_DG_INPUTMODE:
5519cab4 187 td->inputmode = field->report->id;
9498f954
BT		 188 break;
189 case HID_DG_CONTACTMAX:
190 td->maxcontacts = field->value[0];
191 if (td->mtclass->maxcontacts)
192 /* check if the maxcontacts is given by the class */
193 td->maxcontacts = td->mtclass->maxcontacts;
194
195 break;
5519cab4
BT		 196 }
197}
198
199static void set_abs(struct input_dev *input, unsigned int code,
200 struct hid_field *field, int snratio)
201{
202 int fmin = field->logical_minimum;
203 int fmax = field->logical_maximum;
204 int fuzz = snratio ? (fmax - fmin) / snratio : 0;
205 input_set_abs_params(input, code, fmin, fmax, fuzz, 0);
206}
207
208static int mt_input_mapping(struct hid_device *hdev, struct hid_input *hi,
209 struct hid_field *field, struct hid_usage *usage,
210 unsigned long **bit, int *max)
211{
212 struct mt_device *td = hid_get_drvdata(hdev);
213 struct mt_class *cls = td->mtclass;
4875ac11
RN		 214 __s32 quirks = cls->quirks;
215
5519cab4
BT		 216 switch (usage->hid & HID_USAGE_PAGE) {
217
218 case HID_UP_GENDESK:
219 switch (usage->hid) {
220 case HID_GD_X:
4875ac11
RN		 221 if (quirks & MT_QUIRK_EGALAX_XYZ_FIXUP)
222 field->logical_maximum = 32760;
5519cab4
BT		 223 hid_map_usage(hi, usage, bit, max,
224 EV_ABS, ABS_MT_POSITION_X);
225 set_abs(hi->input, ABS_MT_POSITION_X, field,
226 cls->sn_move);
227 /* touchscreen emulation */
228 set_abs(hi->input, ABS_X, field, cls->sn_move);
b84bd27f
BT		 229 if (td->last_mt_collection == usage->collection_index) {
230 td->last_slot_field = usage->hid;
231 td->last_field_index = field->index;
232 }
5519cab4
BT		 233 return 1;
234 case HID_GD_Y:
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_Y);
239 set_abs(hi->input, ABS_MT_POSITION_Y, field,
240 cls->sn_move);
241 /* touchscreen emulation */
242 set_abs(hi->input, ABS_Y, 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 }
249 return 0;
250
251 case HID_UP_DIGITIZER:
252 switch (usage->hid) {
253 case HID_DG_INRANGE:
b84bd27f
BT		 254 if (td->last_mt_collection == usage->collection_index) {
255 td->last_slot_field = usage->hid;
256 td->last_field_index = field->index;
257 }
5519cab4
BT		 258 return 1;
259 case HID_DG_CONFIDENCE:
b84bd27f
BT		 260 if (td->last_mt_collection == usage->collection_index) {
261 td->last_slot_field = usage->hid;
262 td->last_field_index = field->index;
263 }
5519cab4
BT		 264 return 1;
265 case HID_DG_TIPSWITCH:
266 hid_map_usage(hi, usage, bit, max, EV_KEY, BTN_TOUCH);
267 input_set_capability(hi->input, EV_KEY, BTN_TOUCH);
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_CONTACTID:
50bc03ab
BT		 274 if (!td->maxcontacts)
275 td->maxcontacts = MT_DEFAULT_MAXCONTACT;
9498f954 276 input_mt_init_slots(hi->input, td->maxcontacts);
5519cab4 277 td->last_slot_field = usage->hid;
2955caed 278 td->last_field_index = field->index;
b84bd27f 279 td->last_mt_collection = usage->collection_index;
5519cab4
BT		 280 return 1;
281 case HID_DG_WIDTH:
282 hid_map_usage(hi, usage, bit, max,
283 EV_ABS, ABS_MT_TOUCH_MAJOR);
f786bba4
BT		 284 set_abs(hi->input, ABS_MT_TOUCH_MAJOR, field,
285 cls->sn_width);
b84bd27f
BT		 286 if (td->last_mt_collection == usage->collection_index) {
287 td->last_slot_field = usage->hid;
288 td->last_field_index = field->index;
289 }
5519cab4
BT		 290 return 1;
291 case HID_DG_HEIGHT:
292 hid_map_usage(hi, usage, bit, max,
293 EV_ABS, ABS_MT_TOUCH_MINOR);
f786bba4
BT		 294 set_abs(hi->input, ABS_MT_TOUCH_MINOR, field,
295 cls->sn_height);
1e648a13
BT		 296 input_set_abs_params(hi->input,
297 ABS_MT_ORIENTATION, 0, 1, 0, 0);
b84bd27f
BT		 298 if (td->last_mt_collection == usage->collection_index) {
299 td->last_slot_field = usage->hid;
300 td->last_field_index = field->index;
301 }
5519cab4
BT		 302 return 1;
303 case HID_DG_TIPPRESSURE:
4875ac11
RN		 304 if (quirks & MT_QUIRK_EGALAX_XYZ_FIXUP)
305 field->logical_minimum = 0;
5519cab4
BT		 306 hid_map_usage(hi, usage, bit, max,
307 EV_ABS, ABS_MT_PRESSURE);
308 set_abs(hi->input, ABS_MT_PRESSURE, field,
309 cls->sn_pressure);
310 /* touchscreen emulation */
311 set_abs(hi->input, ABS_PRESSURE, field,
312 cls->sn_pressure);
b84bd27f
BT		 313 if (td->last_mt_collection == usage->collection_index) {
314 td->last_slot_field = usage->hid;
315 td->last_field_index = field->index;
316 }
5519cab4
BT		 317 return 1;
318 case HID_DG_CONTACTCOUNT:
b84bd27f
BT		 319 if (td->last_mt_collection == usage->collection_index)
320 td->last_field_index = field->index;
5519cab4
BT		 321 return 1;
322 case HID_DG_CONTACTMAX:
323 /* we don't set td->last_slot_field as contactcount and
324 * contact max are global to the report */
b84bd27f
BT		 325 if (td->last_mt_collection == usage->collection_index)
326 td->last_field_index = field->index;
5519cab4
BT		 327 return -1;
328 }
329 /* let hid-input decide for the others */
330 return 0;
331
332 case 0xff000000:
333 /* we do not want to map these: no input-oriented meaning */
334 return -1;
335 }
336
337 return 0;
338}
339
340static int mt_input_mapped(struct hid_device *hdev, struct hid_input *hi,
341 struct hid_field *field, struct hid_usage *usage,
342 unsigned long **bit, int *max)
343{
344 if (usage->type == EV_KEY || usage->type == EV_ABS)
345 set_bit(usage->type, hi->input->evbit);
346
347 return -1;
348}
349
350static int mt_compute_slot(struct mt_device *td)
351{
2d93666e 352 __s32 quirks = td->mtclass->quirks;
5519cab4 353
2d93666e
BT		 354 if (quirks & MT_QUIRK_SLOT_IS_CONTACTID)
355 return td->curdata.contactid;
5519cab4 356
2d93666e 357 if (quirks & MT_QUIRK_CYPRESS)
a3b5e577
BT		 358 return cypress_compute_slot(td);
359
2d93666e
BT		 360 if (quirks & MT_QUIRK_SLOT_IS_CONTACTNUMBER)
361 return td->num_received;
5572da08 362
4a6ee685
BT		 363 if (quirks & MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE)
364 return td->curdata.contactid - 1;
365
5519cab4
BT		 366 return find_slot_from_contactid(td);
367}
368
369/*
370 * this function is called when a whole contact has been processed,
371 * so that it can assign it to a slot and store the data there
372 */
373static void mt_complete_slot(struct mt_device *td)
374{
2d93666e 375 td->curdata.seen_in_this_frame = true;
5519cab4 376 if (td->curvalid) {
5519cab4
BT		 377 int slotnum = mt_compute_slot(td);
378
9498f954 379 if (slotnum >= 0 && slotnum < td->maxcontacts)
2d93666e 380 td->slots[slotnum] = td->curdata;
5519cab4
BT		 381 }
382 td->num_received++;
383}
384
385
386/*
387 * this function is called when a whole packet has been received and processed,
388 * so that it can decide what to send to the input layer.
389 */
390static void mt_emit_event(struct mt_device *td, struct input_dev *input)
391{
392 int i;
393
9498f954 394 for (i = 0; i < td->maxcontacts; ++i) {
5519cab4
BT		 395 struct mt_slot *s = &(td->slots[i]);
396 if ((td->mtclass->quirks & MT_QUIRK_NOT_SEEN_MEANS_UP) &&
397 !s->seen_in_this_frame) {
5519cab4
BT		 398 s->touch_state = false;
399 }
400
401 input_mt_slot(input, i);
402 input_mt_report_slot_state(input, MT_TOOL_FINGER,
403 s->touch_state);
2d93666e 404 if (s->touch_state) {
f786bba4
BT		 405 /* this finger is on the screen */
406 int wide = (s->w > s->h);
407 /* divided by two to match visual scale of touch */
408 int major = max(s->w, s->h) >> 1;
409 int minor = min(s->w, s->h) >> 1;
410
2d93666e
BT		 411 input_event(input, EV_ABS, ABS_MT_POSITION_X, s->x);
412 input_event(input, EV_ABS, ABS_MT_POSITION_Y, s->y);
f786bba4 413 input_event(input, EV_ABS, ABS_MT_ORIENTATION, wide);
2d93666e 414 input_event(input, EV_ABS, ABS_MT_PRESSURE, s->p);
f786bba4
BT		 415 input_event(input, EV_ABS, ABS_MT_TOUCH_MAJOR, major);
416 input_event(input, EV_ABS, ABS_MT_TOUCH_MINOR, minor);
2d93666e 417 }
5519cab4
BT		 418 s->seen_in_this_frame = false;
419
420 }
421
422 input_mt_report_pointer_emulation(input, true);
423 input_sync(input);
424 td->num_received = 0;
425}
426
427
428
429static int mt_event(struct hid_device *hid, struct hid_field *field,
430 struct hid_usage *usage, __s32 value)
431{
432 struct mt_device *td = hid_get_drvdata(hid);
2d93666e 433 __s32 quirks = td->mtclass->quirks;
5519cab4 434
9498f954 435 if (hid->claimed & HID_CLAIMED_INPUT && td->slots) {
5519cab4
BT		 436 switch (usage->hid) {
437 case HID_DG_INRANGE:
2d93666e
BT		 438 if (quirks & MT_QUIRK_VALID_IS_INRANGE)
439 td->curvalid = value;
5519cab4
BT		 440 break;
441 case HID_DG_TIPSWITCH:
2d93666e
BT		 442 if (quirks & MT_QUIRK_NOT_SEEN_MEANS_UP)
443 td->curvalid = value;
5519cab4
BT		 444 td->curdata.touch_state = value;
445 break;
446 case HID_DG_CONFIDENCE:
2d93666e
BT		 447 if (quirks & MT_QUIRK_VALID_IS_CONFIDENCE)
448 td->curvalid = value;
5519cab4
BT		 449 break;
450 case HID_DG_CONTACTID:
451 td->curdata.contactid = value;
452 break;
453 case HID_DG_TIPPRESSURE:
454 td->curdata.p = value;
455 break;
456 case HID_GD_X:
457 td->curdata.x = value;
458 break;
459 case HID_GD_Y:
460 td->curdata.y = value;
461 break;
462 case HID_DG_WIDTH:
463 td->curdata.w = value;
464 break;
465 case HID_DG_HEIGHT:
466 td->curdata.h = value;
467 break;
468 case HID_DG_CONTACTCOUNT:
469 /*
2d93666e
BT		 470 * Includes multi-packet support where subsequent
471 * packets are sent with zero contactcount.
5519cab4
BT		 472 */
473 if (value)
2d93666e 474 td->num_expected = value;
5519cab4
BT		 475 break;
476
477 default:
478 /* fallback to the generic hidinput handling */
479 return 0;
480 }
5519cab4 481
f153fc39 482 if (usage->hid == td->last_slot_field) {
2d93666e 483 mt_complete_slot(td);
f153fc39 484 }
2d93666e
BT		 485
486 if (field->index == td->last_field_index
487 && td->num_received >= td->num_expected)
488 mt_emit_event(td, field->hidinput->input);
5519cab4 489
2d93666e 490 }
5519cab4
BT		 491
492 /* we have handled the hidinput part, now remains hiddev */
493 if (hid->claimed & HID_CLAIMED_HIDDEV && hid->hiddev_hid_event)
494 hid->hiddev_hid_event(hid, field, usage, value);
495
496 return 1;
497}
498
499static void mt_set_input_mode(struct hid_device *hdev)
500{
501 struct mt_device *td = hid_get_drvdata(hdev);
502 struct hid_report *r;
503 struct hid_report_enum *re;
504
505 if (td->inputmode < 0)
506 return;
507
508 re = &(hdev->report_enum[HID_FEATURE_REPORT]);
509 r = re->report_id_hash[td->inputmode];
510 if (r) {
511 r->field[0]->value[0] = 0x02;
512 usbhid_submit_report(hdev, r, USB_DIR_OUT);
513 }
514}
515
516static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id)
517{
2d93666e 518 int ret, i;
5519cab4 519 struct mt_device *td;
2d93666e
BT		 520 struct mt_class *mtclass = mt_classes; /* MT_CLS_DEFAULT */
521
522 for (i = 0; mt_classes[i].name ; i++) {
523 if (id->driver_data == mt_classes[i].name) {
524 mtclass = &(mt_classes[i]);
525 break;
526 }
527 }
5519cab4
BT		 528
529 /* This allows the driver to correctly support devices
530 * that emit events over several HID messages.
531 */
532 hdev->quirks |= HID_QUIRK_NO_INPUT_SYNC;
533
9498f954 534 td = kzalloc(sizeof(struct mt_device), GFP_KERNEL);
5519cab4
BT		 535 if (!td) {
536 dev_err(&hdev->dev, "cannot allocate multitouch data\n");
537 return -ENOMEM;
538 }
539 td->mtclass = mtclass;
540 td->inputmode = -1;
b84bd27f 541 td->last_mt_collection = -1;
5519cab4
BT		 542 hid_set_drvdata(hdev, td);
543
544 ret = hid_parse(hdev);
545 if (ret != 0)
546 goto fail;
547
548 ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
2d93666e 549 if (ret)
5519cab4
BT		 550 goto fail;
551
9498f954
BT		 552 td->slots = kzalloc(td->maxcontacts * sizeof(struct mt_slot),
553 GFP_KERNEL);
554 if (!td->slots) {
555 dev_err(&hdev->dev, "cannot allocate multitouch slots\n");
556 hid_hw_stop(hdev);
557 ret = -ENOMEM;
558 goto fail;
559 }
560
5519cab4
BT		 561 mt_set_input_mode(hdev);
562
563 return 0;
564
565fail:
566 kfree(td);
567 return ret;
568}
569
570#ifdef CONFIG_PM
571static int mt_reset_resume(struct hid_device *hdev)
572{
573 mt_set_input_mode(hdev);
574 return 0;
575}
576#endif
577
578static void mt_remove(struct hid_device *hdev)
579{
580 struct mt_device *td = hid_get_drvdata(hdev);
581 hid_hw_stop(hdev);
9498f954 582 kfree(td->slots);
5519cab4
BT		 583 kfree(td);
584 hid_set_drvdata(hdev, NULL);
585}
586
587static const struct hid_device_id mt_devices[] = {
588
f786bba4
BT		 589 /* 3M panels */
590 { .driver_data = MT_CLS_3M,
591 HID_USB_DEVICE(USB_VENDOR_ID_3M,
592 USB_DEVICE_ID_3M1968) },
593 { .driver_data = MT_CLS_3M,
594 HID_USB_DEVICE(USB_VENDOR_ID_3M,
595 USB_DEVICE_ID_3M2256) },
596
e6aac342
BT		 597 /* ActionStar panels */
598 { .driver_data = MT_CLS_DEFAULT,
599 HID_USB_DEVICE(USB_VENDOR_ID_ACTIONSTAR,
600 USB_DEVICE_ID_ACTIONSTAR_1011) },
601
a841b62c
BT		 602 /* Cando panels */
603 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
604 HID_USB_DEVICE(USB_VENDOR_ID_CANDO,
605 USB_DEVICE_ID_CANDO_MULTI_TOUCH) },
606 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
607 HID_USB_DEVICE(USB_VENDOR_ID_CANDO,
608 USB_DEVICE_ID_CANDO_MULTI_TOUCH_10_1) },
609 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
610 HID_USB_DEVICE(USB_VENDOR_ID_CANDO,
611 USB_DEVICE_ID_CANDO_MULTI_TOUCH_11_6) },
612 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
613 HID_USB_DEVICE(USB_VENDOR_ID_CANDO,
614 USB_DEVICE_ID_CANDO_MULTI_TOUCH_15_6) },
615
942fd422
AZ		 616 /* Chunghwa Telecom touch panels */
617 { .driver_data = MT_CLS_DEFAULT,
618 HID_USB_DEVICE(USB_VENDOR_ID_CHUNGHWAT,
619 USB_DEVICE_ID_CHUNGHWAT_MULTITOUCH) },
620
79603dc9
BT		 621 /* CVTouch panels */
622 { .driver_data = MT_CLS_DEFAULT,
623 HID_USB_DEVICE(USB_VENDOR_ID_CVTOUCH,
624 USB_DEVICE_ID_CVTOUCH_SCREEN) },
625
a3b5e577
BT		 626 /* Cypress panel */
627 { .driver_data = MT_CLS_CYPRESS,
628 HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS,
629 USB_DEVICE_ID_CYPRESS_TRUETOUCH) },
630
22408283
BT		 631 /* eGalax devices (resistive) */
632 { .driver_data = MT_CLS_EGALAX,
633 HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
634 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH) },
635 { .driver_data = MT_CLS_EGALAX,
636 HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
637 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH3) },
638
639 /* eGalax devices (capacitive) */
640 { .driver_data = MT_CLS_EGALAX,
641 HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
642 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH1) },
643 { .driver_data = MT_CLS_EGALAX,
644 HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
645 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH2) },
646 { .driver_data = MT_CLS_EGALAX,
647 HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
648 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH4) },
649
c04abeef
BT		 650 /* Elo TouchSystems IntelliTouch Plus panel */
651 { .driver_data = MT_CLS_DUAL_NSMU_CONTACTID,
652 HID_USB_DEVICE(USB_VENDOR_ID_ELO,
653 USB_DEVICE_ID_ELO_TS2515) },
654
5572da08 655 /* GeneralTouch panel */
1e9cf35b 656 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
5572da08
BT		 657 HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
658 USB_DEVICE_ID_GENERAL_TOUCH_WIN7_TWOFINGERS) },
659
ee0fbd14
BT		 660 /* GoodTouch panels */
661 { .driver_data = MT_CLS_DEFAULT,
662 HID_USB_DEVICE(USB_VENDOR_ID_GOODTOUCH,
663 USB_DEVICE_ID_GOODTOUCH_000f) },
664
4e61f0d7
AZ		 665 /* Ilitek dual touch panel */
666 { .driver_data = MT_CLS_DEFAULT,
667 HID_USB_DEVICE(USB_VENDOR_ID_ILITEK,
668 USB_DEVICE_ID_ILITEK_MULTITOUCH) },
669
4dfcced8
BT		 670 /* IRTOUCH panels */
671 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID,
672 HID_USB_DEVICE(USB_VENDOR_ID_IRTOUCHSYSTEMS,
673 USB_DEVICE_ID_IRTOUCH_INFRARED_USB) },
674
df167c4a
BT		 675 /* Lumio panels */
676 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
677 HID_USB_DEVICE(USB_VENDOR_ID_LUMIO,
678 USB_DEVICE_ID_CRYSTALTOUCH) },
c3ead6de
BT		 679 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
680 HID_USB_DEVICE(USB_VENDOR_ID_LUMIO,
681 USB_DEVICE_ID_CRYSTALTOUCH_DUAL) },
df167c4a 682
4a6ee685
BT		 683 /* MosArt panels */
684 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
685 HID_USB_DEVICE(USB_VENDOR_ID_ASUS,
686 USB_DEVICE_ID_ASUS_T91MT)},
687 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
688 HID_USB_DEVICE(USB_VENDOR_ID_ASUS,
689 USB_DEVICE_ID_ASUSTEK_MULTITOUCH_YFO) },
690 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
691 HID_USB_DEVICE(USB_VENDOR_ID_TURBOX,
692 USB_DEVICE_ID_TURBOX_TOUCHSCREEN_MOSART) },
693
6ab3a9a6
JS		 694 /* PenMount panels */
695 { .driver_data = MT_CLS_CONFIDENCE,
696 HID_USB_DEVICE(USB_VENDOR_ID_PENMOUNT,
697 USB_DEVICE_ID_PENMOUNT_PCI) },
698
5519cab4 699 /* PixCir-based panels */
1e9cf35b 700 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID,
5519cab4
BT		 701 HID_USB_DEVICE(USB_VENDOR_ID_HANVON,
702 USB_DEVICE_ID_HANVON_MULTITOUCH) },
1e9cf35b 703 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID,
5519cab4
BT		 704 HID_USB_DEVICE(USB_VENDOR_ID_CANDO,
705 USB_DEVICE_ID_CANDO_PIXCIR_MULTI_TOUCH) },
706
043b403a 707 /* Stantum panels */
bf5af9b5 708 { .driver_data = MT_CLS_CONFIDENCE,
043b403a
BT		 709 HID_USB_DEVICE(USB_VENDOR_ID_STANTUM,
710 USB_DEVICE_ID_MTP)},
bf5af9b5 711 { .driver_data = MT_CLS_CONFIDENCE,
85a60082 712 HID_USB_DEVICE(USB_VENDOR_ID_STANTUM_STM,
043b403a 713 USB_DEVICE_ID_MTP_STM)},
bf5af9b5 714 { .driver_data = MT_CLS_CONFIDENCE,
85a60082 715 HID_USB_DEVICE(USB_VENDOR_ID_STANTUM_SITRONIX,
043b403a
BT		 716 USB_DEVICE_ID_MTP_SITRONIX)},
717
5e74e56d
BT		 718 /* Touch International panels */
719 { .driver_data = MT_CLS_DEFAULT,
720 HID_USB_DEVICE(USB_VENDOR_ID_TOUCH_INTL,
721 USB_DEVICE_ID_TOUCH_INTL_MULTI_TOUCH) },
722
617b64f9
BT		 723 /* Unitec panels */
724 { .driver_data = MT_CLS_DEFAULT,
725 HID_USB_DEVICE(USB_VENDOR_ID_UNITEC,
726 USB_DEVICE_ID_UNITEC_USB_TOUCH_0709) },
727 { .driver_data = MT_CLS_DEFAULT,
728 HID_USB_DEVICE(USB_VENDOR_ID_UNITEC,
729 USB_DEVICE_ID_UNITEC_USB_TOUCH_0A19) },
bc8a2a9b 730 /* XAT */
731 { .driver_data = MT_CLS_DEFAULT,
732 HID_USB_DEVICE(USB_VENDOR_ID_XAT,
733 USB_DEVICE_ID_XAT_CSR) },
617b64f9 734
5519cab4
BT		 735 { }
736};
737MODULE_DEVICE_TABLE(hid, mt_devices);
738
739static const struct hid_usage_id mt_grabbed_usages[] = {
740 { HID_ANY_ID, HID_ANY_ID, HID_ANY_ID },
741 { HID_ANY_ID - 1, HID_ANY_ID - 1, HID_ANY_ID - 1}
742};
743
744static struct hid_driver mt_driver = {
745 .name = "hid-multitouch",
746 .id_table = mt_devices,
747 .probe = mt_probe,
748 .remove = mt_remove,
749 .input_mapping = mt_input_mapping,
750 .input_mapped = mt_input_mapped,
751 .feature_mapping = mt_feature_mapping,
752 .usage_table = mt_grabbed_usages,
753 .event = mt_event,
754#ifdef CONFIG_PM
755 .reset_resume = mt_reset_resume,
756#endif
757};
758
759static int __init mt_init(void)
760{
761 return hid_register_driver(&mt_driver);
762}
763
764static void __exit mt_exit(void)
765{
766 hid_unregister_driver(&mt_driver);
767}
768
769module_init(mt_init);
770module_exit(mt_exit);
Linux kernel - Deliverables
This page took 0.107363 seconds and 5 git commands to generate.