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HID: multitouch: fix handling of buggy reports descriptors for Dell ST2220T
[deliverable/linux.git] / drivers / hid / hid-multitouch.c
CommitLineData
5519cab4
BT		 1/*
2 * HID driver for multitouch panels
3 *
c2ef8f21
BT		 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
5519cab4 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)
a062cc5a 53#define MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE (1 << 8)
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
eec29e3d
BT		 62struct mt_class {
63 __s32 name; /* MT_CLS */
64 __s32 quirks;
65 __s32 sn_move; /* Signal/noise ratio for move events */
66 __s32 sn_width; /* Signal/noise ratio for width events */
67 __s32 sn_height; /* Signal/noise ratio for height events */
68 __s32 sn_pressure; /* Signal/noise ratio for pressure events */
69 __u8 maxcontacts;
c2ef8f21 70 bool is_indirect; /* true for touchpads */
eec29e3d
BT		 71};
72
5519cab4
BT		 73struct mt_device {
74 struct mt_slot curdata; /* placeholder of incoming data */
eec29e3d 75 struct mt_class mtclass; /* our mt device class */
5519cab4
BT		 76 unsigned last_field_index; /* last field index of the report */
77 unsigned last_slot_field; /* the last field of a slot */
78 __s8 inputmode; /* InputMode HID feature, -1 if non-existent */
31ae9bdd
BT		 79 __s8 maxcontact_report_id; /* Maximum Contact Number HID feature,
80 -1 if non-existent */
5519cab4
BT		 81 __u8 num_received; /* how many contacts we received */
82 __u8 num_expected; /* expected last contact index */
9498f954 83 __u8 maxcontacts;
5519cab4 84 bool curvalid; /* is the current contact valid? */
9498f954 85 struct mt_slot *slots;
5519cab4
BT		 86};
87
5519cab4 88/* classes of device behavior */
22408283
BT		 89#define MT_CLS_DEFAULT 0x0001
90
a062cc5a
SC		 91#define MT_CLS_SERIAL 0x0002
92#define MT_CLS_CONFIDENCE 0x0003
5e7ea11f
BT		 93#define MT_CLS_CONFIDENCE_CONTACT_ID 0x0004
94#define MT_CLS_CONFIDENCE_MINUS_ONE 0x0005
95#define MT_CLS_DUAL_INRANGE_CONTACTID 0x0006
96#define MT_CLS_DUAL_INRANGE_CONTACTNUMBER 0x0007
97#define MT_CLS_DUAL_NSMU_CONTACTID 0x0008
b7ea95ff 98#define MT_CLS_INRANGE_CONTACTNUMBER 0x0009
22408283
BT		 99
100/* vendor specific classes */
101#define MT_CLS_3M 0x0101
102#define MT_CLS_CYPRESS 0x0102
103#define MT_CLS_EGALAX 0x0103
1b723e8d 104#define MT_CLS_EGALAX_SERIAL 0x0104
847672cd 105#define MT_CLS_TOPSEED 0x0105
2258e863 106#define MT_CLS_PANASONIC 0x0106
5519cab4 107
9498f954
BT		 108#define MT_DEFAULT_MAXCONTACT 10
109
5519cab4
BT		 110/*
111 * these device-dependent functions determine what slot corresponds
112 * to a valid contact that was just read.
113 */
114
a3b5e577
BT		 115static int cypress_compute_slot(struct mt_device *td)
116{
117 if (td->curdata.contactid != 0 || td->num_received == 0)
118 return td->curdata.contactid;
119 else
120 return -1;
121}
122
5519cab4
BT		 123static int find_slot_from_contactid(struct mt_device *td)
124{
125 int i;
9498f954 126 for (i = 0; i < td->maxcontacts; ++i) {
5519cab4
BT		 127 if (td->slots[i].contactid == td->curdata.contactid &&
128 td->slots[i].touch_state)
129 return i;
130 }
9498f954 131 for (i = 0; i < td->maxcontacts; ++i) {
5519cab4
BT		 132 if (!td->slots[i].seen_in_this_frame &&
133 !td->slots[i].touch_state)
134 return i;
135 }
5519cab4
BT		 136 /* should not occurs. If this happens that means
137 * that the device sent more touches that it says
138 * in the report descriptor. It is ignored then. */
2d93666e 139 return -1;
5519cab4
BT		 140}
141
b3c21d2c 142static struct mt_class mt_classes[] = {
2d93666e 143 { .name = MT_CLS_DEFAULT,
9498f954 144 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP },
a062cc5a
SC		 145 { .name = MT_CLS_SERIAL,
146 .quirks = MT_QUIRK_ALWAYS_VALID},
22408283
BT		 147 { .name = MT_CLS_CONFIDENCE,
148 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE },
5e7ea11f
BT		 149 { .name = MT_CLS_CONFIDENCE_CONTACT_ID,
150 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE |
151 MT_QUIRK_SLOT_IS_CONTACTID },
22408283
BT		 152 { .name = MT_CLS_CONFIDENCE_MINUS_ONE,
153 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE |
154 MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE },
1e9cf35b 155 { .name = MT_CLS_DUAL_INRANGE_CONTACTID,
2d93666e
BT		 156 .quirks = MT_QUIRK_VALID_IS_INRANGE |
157 MT_QUIRK_SLOT_IS_CONTACTID,
158 .maxcontacts = 2 },
1e9cf35b 159 { .name = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
2d93666e
BT		 160 .quirks = MT_QUIRK_VALID_IS_INRANGE |
161 MT_QUIRK_SLOT_IS_CONTACTNUMBER,
162 .maxcontacts = 2 },
22408283
BT		 163 { .name = MT_CLS_DUAL_NSMU_CONTACTID,
164 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP |
165 MT_QUIRK_SLOT_IS_CONTACTID,
166 .maxcontacts = 2 },
b7ea95ff
AT		 167 { .name = MT_CLS_INRANGE_CONTACTNUMBER,
168 .quirks = MT_QUIRK_VALID_IS_INRANGE |
169 MT_QUIRK_SLOT_IS_CONTACTNUMBER },
22408283
BT		 170
171 /*
172 * vendor specific classes
173 */
174 { .name = MT_CLS_3M,
175 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE |
176 MT_QUIRK_SLOT_IS_CONTACTID,
177 .sn_move = 2048,
178 .sn_width = 128,
179 .sn_height = 128 },
2d93666e
BT		 180 { .name = MT_CLS_CYPRESS,
181 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP |
182 MT_QUIRK_CYPRESS,
183 .maxcontacts = 10 },
4875ac11
RN		 184 { .name = MT_CLS_EGALAX,
185 .quirks = MT_QUIRK_SLOT_IS_CONTACTID |
2261bb9f 186 MT_QUIRK_VALID_IS_INRANGE,
4875ac11
RN		 187 .sn_move = 4096,
188 .sn_pressure = 32,
189 },
1b723e8d
BT		 190 { .name = MT_CLS_EGALAX_SERIAL,
191 .quirks = MT_QUIRK_SLOT_IS_CONTACTID |
192 MT_QUIRK_ALWAYS_VALID,
4875ac11
RN		 193 .sn_move = 4096,
194 .sn_pressure = 32,
195 },
847672cd
BT		 196 { .name = MT_CLS_TOPSEED,
197 .quirks = MT_QUIRK_ALWAYS_VALID,
198 .is_indirect = true,
199 .maxcontacts = 2,
200 },
2258e863
DK		 201 { .name = MT_CLS_PANASONIC,
202 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP,
203 .maxcontacts = 4 },
043b403a 204
2d93666e 205 { }
5519cab4
BT		 206};
207
eec29e3d
BT		 208static ssize_t mt_show_quirks(struct device *dev,
209 struct device_attribute *attr,
210 char *buf)
211{
212 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
213 struct mt_device *td = hid_get_drvdata(hdev);
214
215 return sprintf(buf, "%u\n", td->mtclass.quirks);
216}
217
218static ssize_t mt_set_quirks(struct device *dev,
219 struct device_attribute *attr,
220 const char *buf, size_t count)
221{
222 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
223 struct mt_device *td = hid_get_drvdata(hdev);
224
225 unsigned long val;
226
227 if (kstrtoul(buf, 0, &val))
228 return -EINVAL;
229
230 td->mtclass.quirks = val;
231
232 return count;
233}
234
235static DEVICE_ATTR(quirks, S_IWUSR | S_IRUGO, mt_show_quirks, mt_set_quirks);
236
237static struct attribute *sysfs_attrs[] = {
238 &dev_attr_quirks.attr,
239 NULL
240};
241
242static struct attribute_group mt_attribute_group = {
243 .attrs = sysfs_attrs
244};
245
f635bd11 246static void mt_feature_mapping(struct hid_device *hdev,
5519cab4
BT		 247 struct hid_field *field, struct hid_usage *usage)
248{
9498f954
BT		 249 struct mt_device *td = hid_get_drvdata(hdev);
250
251 switch (usage->hid) {
252 case HID_DG_INPUTMODE:
5519cab4 253 td->inputmode = field->report->id;
9498f954
BT		 254 break;
255 case HID_DG_CONTACTMAX:
31ae9bdd 256 td->maxcontact_report_id = field->report->id;
9498f954 257 td->maxcontacts = field->value[0];
eec29e3d 258 if (td->mtclass.maxcontacts)
9498f954 259 /* check if the maxcontacts is given by the class */
eec29e3d 260 td->maxcontacts = td->mtclass.maxcontacts;
9498f954
BT		 261
262 break;
5519cab4
BT		 263 }
264}
265
266static void set_abs(struct input_dev *input, unsigned int code,
267 struct hid_field *field, int snratio)
268{
269 int fmin = field->logical_minimum;
270 int fmax = field->logical_maximum;
271 int fuzz = snratio ? (fmax - fmin) / snratio : 0;
272 input_set_abs_params(input, code, fmin, fmax, fuzz, 0);
273}
274
ed9d5c96
BT		 275static void set_last_slot_field(struct hid_usage *usage, struct mt_device *td,
276 struct hid_input *hi)
277{
278 if (!test_bit(usage->hid, hi->input->absbit))
279 td->last_slot_field = usage->hid;
280}
281
5519cab4
BT		 282static int mt_input_mapping(struct hid_device *hdev, struct hid_input *hi,
283 struct hid_field *field, struct hid_usage *usage,
284 unsigned long **bit, int *max)
285{
286 struct mt_device *td = hid_get_drvdata(hdev);
eec29e3d 287 struct mt_class *cls = &td->mtclass;
c2ef8f21 288 int code;
4875ac11 289
658d4aed 290 /* Only map fields from TouchScreen or TouchPad collections.
2258e863
DK		 291 * We need to ignore fields that belong to other collections
292 * such as Mouse that might have the same GenericDesktop usages. */
658d4aed
JB		 293 if (field->application == HID_DG_TOUCHSCREEN)
294 set_bit(INPUT_PROP_DIRECT, hi->input->propbit);
c2ef8f21 295 else if (field->application != HID_DG_TOUCHPAD)
658d4aed
JB		 296 return 0;
297
c2ef8f21
BT		 298 /* In case of an indirect device (touchpad), we need to add
299 * specific BTN_TOOL_* to be handled by the synaptics xorg
300 * driver.
301 * We also consider that touchscreens providing buttons are touchpads.
302 */
303 if (field->application == HID_DG_TOUCHPAD ||
304 (usage->hid & HID_USAGE_PAGE) == HID_UP_BUTTON ||
305 cls->is_indirect) {
306 set_bit(INPUT_PROP_POINTER, hi->input->propbit);
307 set_bit(BTN_TOOL_FINGER, hi->input->keybit);
308 set_bit(BTN_TOOL_DOUBLETAP, hi->input->keybit);
309 set_bit(BTN_TOOL_TRIPLETAP, hi->input->keybit);
310 set_bit(BTN_TOOL_QUADTAP, hi->input->keybit);
311 }
312
2261bb9f
BT		 313 /* eGalax devices provide a Digitizer.Stylus input which overrides
314 * the correct Digitizers.Finger X/Y ranges.
315 * Let's just ignore this input. */
316 if (field->physical == HID_DG_STYLUS)
317 return -1;
318
5519cab4
BT		 319 switch (usage->hid & HID_USAGE_PAGE) {
320
321 case HID_UP_GENDESK:
322 switch (usage->hid) {
323 case HID_GD_X:
324 hid_map_usage(hi, usage, bit, max,
325 EV_ABS, ABS_MT_POSITION_X);
326 set_abs(hi->input, ABS_MT_POSITION_X, field,
327 cls->sn_move);
328 /* touchscreen emulation */
329 set_abs(hi->input, ABS_X, field, cls->sn_move);
ed9d5c96
BT		 330 set_last_slot_field(usage, td, hi);
331 td->last_field_index = field->index;
5519cab4
BT		 332 return 1;
333 case HID_GD_Y:
334 hid_map_usage(hi, usage, bit, max,
335 EV_ABS, ABS_MT_POSITION_Y);
336 set_abs(hi->input, ABS_MT_POSITION_Y, field,
337 cls->sn_move);
338 /* touchscreen emulation */
339 set_abs(hi->input, ABS_Y, field, cls->sn_move);
ed9d5c96
BT		 340 set_last_slot_field(usage, td, hi);
341 td->last_field_index = field->index;
5519cab4
BT		 342 return 1;
343 }
344 return 0;
345
346 case HID_UP_DIGITIZER:
347 switch (usage->hid) {
348 case HID_DG_INRANGE:
ed9d5c96
BT		 349 set_last_slot_field(usage, td, hi);
350 td->last_field_index = field->index;
5519cab4
BT		 351 return 1;
352 case HID_DG_CONFIDENCE:
ed9d5c96
BT		 353 set_last_slot_field(usage, td, hi);
354 td->last_field_index = field->index;
5519cab4
BT		 355 return 1;
356 case HID_DG_TIPSWITCH:
357 hid_map_usage(hi, usage, bit, max, EV_KEY, BTN_TOUCH);
358 input_set_capability(hi->input, EV_KEY, BTN_TOUCH);
ed9d5c96
BT		 359 set_last_slot_field(usage, td, hi);
360 td->last_field_index = field->index;
5519cab4
BT		 361 return 1;
362 case HID_DG_CONTACTID:
50bc03ab
BT		 363 if (!td->maxcontacts)
364 td->maxcontacts = MT_DEFAULT_MAXCONTACT;
9498f954 365 input_mt_init_slots(hi->input, td->maxcontacts);
5519cab4 366 td->last_slot_field = usage->hid;
2955caed 367 td->last_field_index = field->index;
5519cab4
BT		 368 return 1;
369 case HID_DG_WIDTH:
370 hid_map_usage(hi, usage, bit, max,
371 EV_ABS, ABS_MT_TOUCH_MAJOR);
f786bba4
BT		 372 set_abs(hi->input, ABS_MT_TOUCH_MAJOR, field,
373 cls->sn_width);
ed9d5c96
BT		 374 set_last_slot_field(usage, td, hi);
375 td->last_field_index = field->index;
5519cab4
BT		 376 return 1;
377 case HID_DG_HEIGHT:
378 hid_map_usage(hi, usage, bit, max,
379 EV_ABS, ABS_MT_TOUCH_MINOR);
f786bba4
BT		 380 set_abs(hi->input, ABS_MT_TOUCH_MINOR, field,
381 cls->sn_height);
1e648a13
BT		 382 input_set_abs_params(hi->input,
383 ABS_MT_ORIENTATION, 0, 1, 0, 0);
ed9d5c96
BT		 384 set_last_slot_field(usage, td, hi);
385 td->last_field_index = field->index;
5519cab4
BT		 386 return 1;
387 case HID_DG_TIPPRESSURE:
388 hid_map_usage(hi, usage, bit, max,
389 EV_ABS, ABS_MT_PRESSURE);
390 set_abs(hi->input, ABS_MT_PRESSURE, field,
391 cls->sn_pressure);
392 /* touchscreen emulation */
393 set_abs(hi->input, ABS_PRESSURE, field,
394 cls->sn_pressure);
ed9d5c96
BT		 395 set_last_slot_field(usage, td, hi);
396 td->last_field_index = field->index;
5519cab4
BT		 397 return 1;
398 case HID_DG_CONTACTCOUNT:
ed9d5c96 399 td->last_field_index = field->index;
5519cab4
BT		 400 return 1;
401 case HID_DG_CONTACTMAX:
402 /* we don't set td->last_slot_field as contactcount and
403 * contact max are global to the report */
ed9d5c96 404 td->last_field_index = field->index;
5519cab4
BT		 405 return -1;
406 }
c2ef8f21
BT		 407 case HID_DG_TOUCH:
408 /* Legacy devices use TIPSWITCH and not TOUCH.
409 * Let's just ignore this field. */
410 return -1;
5519cab4
BT		 411 /* let hid-input decide for the others */
412 return 0;
413
c2ef8f21
BT		 414 case HID_UP_BUTTON:
415 code = BTN_MOUSE + ((usage->hid - 1) & HID_USAGE);
416 hid_map_usage(hi, usage, bit, max, EV_KEY, code);
417 input_set_capability(hi->input, EV_KEY, code);
418 return 1;
419
5519cab4
BT		 420 case 0xff000000:
421 /* we do not want to map these: no input-oriented meaning */
422 return -1;
423 }
424
425 return 0;
426}
427
428static int mt_input_mapped(struct hid_device *hdev, struct hid_input *hi,
429 struct hid_field *field, struct hid_usage *usage,
430 unsigned long **bit, int *max)
431{
432 if (usage->type == EV_KEY || usage->type == EV_ABS)
433 set_bit(usage->type, hi->input->evbit);
434
435 return -1;
436}
437
438static int mt_compute_slot(struct mt_device *td)
439{
eec29e3d 440 __s32 quirks = td->mtclass.quirks;
5519cab4 441
2d93666e
BT		 442 if (quirks & MT_QUIRK_SLOT_IS_CONTACTID)
443 return td->curdata.contactid;
5519cab4 444
2d93666e 445 if (quirks & MT_QUIRK_CYPRESS)
a3b5e577
BT		 446 return cypress_compute_slot(td);
447
2d93666e
BT		 448 if (quirks & MT_QUIRK_SLOT_IS_CONTACTNUMBER)
449 return td->num_received;
5572da08 450
4a6ee685
BT		 451 if (quirks & MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE)
452 return td->curdata.contactid - 1;
453
5519cab4
BT		 454 return find_slot_from_contactid(td);
455}
456
457/*
458 * this function is called when a whole contact has been processed,
459 * so that it can assign it to a slot and store the data there
460 */
461static void mt_complete_slot(struct mt_device *td)
462{
2d93666e 463 td->curdata.seen_in_this_frame = true;
5519cab4 464 if (td->curvalid) {
5519cab4
BT		 465 int slotnum = mt_compute_slot(td);
466
9498f954 467 if (slotnum >= 0 && slotnum < td->maxcontacts)
2d93666e 468 td->slots[slotnum] = td->curdata;
5519cab4
BT		 469 }
470 td->num_received++;
471}
472
473
474/*
475 * this function is called when a whole packet has been received and processed,
476 * so that it can decide what to send to the input layer.
477 */
478static void mt_emit_event(struct mt_device *td, struct input_dev *input)
479{
480 int i;
481
9498f954 482 for (i = 0; i < td->maxcontacts; ++i) {
5519cab4 483 struct mt_slot *s = &(td->slots[i]);
eec29e3d 484 if ((td->mtclass.quirks & MT_QUIRK_NOT_SEEN_MEANS_UP) &&
5519cab4 485 !s->seen_in_this_frame) {
5519cab4
BT		 486 s->touch_state = false;
487 }
488
489 input_mt_slot(input, i);
490 input_mt_report_slot_state(input, MT_TOOL_FINGER,
491 s->touch_state);
2d93666e 492 if (s->touch_state) {
f786bba4
BT		 493 /* this finger is on the screen */
494 int wide = (s->w > s->h);
495 /* divided by two to match visual scale of touch */
496 int major = max(s->w, s->h) >> 1;
497 int minor = min(s->w, s->h) >> 1;
498
2d93666e
BT		 499 input_event(input, EV_ABS, ABS_MT_POSITION_X, s->x);
500 input_event(input, EV_ABS, ABS_MT_POSITION_Y, s->y);
f786bba4 501 input_event(input, EV_ABS, ABS_MT_ORIENTATION, wide);
2d93666e 502 input_event(input, EV_ABS, ABS_MT_PRESSURE, s->p);
f786bba4
BT		 503 input_event(input, EV_ABS, ABS_MT_TOUCH_MAJOR, major);
504 input_event(input, EV_ABS, ABS_MT_TOUCH_MINOR, minor);
2d93666e 505 }
5519cab4
BT		 506 s->seen_in_this_frame = false;
507
508 }
509
510 input_mt_report_pointer_emulation(input, true);
511 input_sync(input);
512 td->num_received = 0;
513}
514
515
516
517static int mt_event(struct hid_device *hid, struct hid_field *field,
518 struct hid_usage *usage, __s32 value)
519{
520 struct mt_device *td = hid_get_drvdata(hid);
eec29e3d 521 __s32 quirks = td->mtclass.quirks;
5519cab4 522
9498f954 523 if (hid->claimed & HID_CLAIMED_INPUT && td->slots) {
5519cab4
BT		 524 switch (usage->hid) {
525 case HID_DG_INRANGE:
a062cc5a
SC		 526 if (quirks & MT_QUIRK_ALWAYS_VALID)
527 td->curvalid = true;
528 else if (quirks & MT_QUIRK_VALID_IS_INRANGE)
2d93666e 529 td->curvalid = value;
5519cab4
BT		 530 break;
531 case HID_DG_TIPSWITCH:
2d93666e
BT		 532 if (quirks & MT_QUIRK_NOT_SEEN_MEANS_UP)
533 td->curvalid = value;
5519cab4
BT		 534 td->curdata.touch_state = value;
535 break;
536 case HID_DG_CONFIDENCE:
2d93666e
BT		 537 if (quirks & MT_QUIRK_VALID_IS_CONFIDENCE)
538 td->curvalid = value;
5519cab4
BT		 539 break;
540 case HID_DG_CONTACTID:
541 td->curdata.contactid = value;
542 break;
543 case HID_DG_TIPPRESSURE:
544 td->curdata.p = value;
545 break;
546 case HID_GD_X:
547 td->curdata.x = value;
548 break;
549 case HID_GD_Y:
550 td->curdata.y = value;
551 break;
552 case HID_DG_WIDTH:
553 td->curdata.w = value;
554 break;
555 case HID_DG_HEIGHT:
556 td->curdata.h = value;
557 break;
558 case HID_DG_CONTACTCOUNT:
559 /*
2d93666e
BT		 560 * Includes multi-packet support where subsequent
561 * packets are sent with zero contactcount.
5519cab4
BT		 562 */
563 if (value)
2d93666e 564 td->num_expected = value;
5519cab4 565 break;
c2ef8f21
BT		 566 case HID_DG_TOUCH:
567 /* do nothing */
568 break;
5519cab4
BT		 569
570 default:
571 /* fallback to the generic hidinput handling */
572 return 0;
573 }
5519cab4 574
2258e863 575 if (usage->hid == td->last_slot_field)
2d93666e
BT		 576 mt_complete_slot(td);
577
578 if (field->index == td->last_field_index
579 && td->num_received >= td->num_expected)
580 mt_emit_event(td, field->hidinput->input);
5519cab4 581
2d93666e 582 }
5519cab4
BT		 583
584 /* we have handled the hidinput part, now remains hiddev */
585 if (hid->claimed & HID_CLAIMED_HIDDEV && hid->hiddev_hid_event)
586 hid->hiddev_hid_event(hid, field, usage, value);
587
588 return 1;
589}
590
591static void mt_set_input_mode(struct hid_device *hdev)
592{
593 struct mt_device *td = hid_get_drvdata(hdev);
594 struct hid_report *r;
595 struct hid_report_enum *re;
596
597 if (td->inputmode < 0)
598 return;
599
600 re = &(hdev->report_enum[HID_FEATURE_REPORT]);
601 r = re->report_id_hash[td->inputmode];
602 if (r) {
603 r->field[0]->value[0] = 0x02;
604 usbhid_submit_report(hdev, r, USB_DIR_OUT);
605 }
606}
607
31ae9bdd
BT		 608static void mt_set_maxcontacts(struct hid_device *hdev)
609{
610 struct mt_device *td = hid_get_drvdata(hdev);
611 struct hid_report *r;
612 struct hid_report_enum *re;
613 int fieldmax, max;
614
615 if (td->maxcontact_report_id < 0)
616 return;
617
618 if (!td->mtclass.maxcontacts)
619 return;
620
621 re = &hdev->report_enum[HID_FEATURE_REPORT];
622 r = re->report_id_hash[td->maxcontact_report_id];
623 if (r) {
624 max = td->mtclass.maxcontacts;
625 fieldmax = r->field[0]->logical_maximum;
626 max = min(fieldmax, max);
627 if (r->field[0]->value[0] != max) {
628 r->field[0]->value[0] = max;
629 usbhid_submit_report(hdev, r, USB_DIR_OUT);
630 }
631 }
632}
633
5519cab4
BT		 634static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id)
635{
2d93666e 636 int ret, i;
5519cab4 637 struct mt_device *td;
2d93666e
BT		 638 struct mt_class *mtclass = mt_classes; /* MT_CLS_DEFAULT */
639
640 for (i = 0; mt_classes[i].name ; i++) {
641 if (id->driver_data == mt_classes[i].name) {
642 mtclass = &(mt_classes[i]);
643 break;
644 }
645 }
5519cab4 646
d682bd7f
HR		 647 /* This allows the driver to correctly support devices
648 * that emit events over several HID messages.
649 */
650 hdev->quirks |= HID_QUIRK_NO_INPUT_SYNC;
5519cab4 651
9498f954 652 td = kzalloc(sizeof(struct mt_device), GFP_KERNEL);
5519cab4
BT		 653 if (!td) {
654 dev_err(&hdev->dev, "cannot allocate multitouch data\n");
655 return -ENOMEM;
656 }
eec29e3d 657 td->mtclass = *mtclass;
5519cab4 658 td->inputmode = -1;
31ae9bdd 659 td->maxcontact_report_id = -1;
5519cab4
BT		 660 hid_set_drvdata(hdev, td);
661
662 ret = hid_parse(hdev);
663 if (ret != 0)
664 goto fail;
665
666 ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
2d93666e 667 if (ret)
5519cab4
BT		 668 goto fail;
669
9498f954
BT		 670 td->slots = kzalloc(td->maxcontacts * sizeof(struct mt_slot),
671 GFP_KERNEL);
672 if (!td->slots) {
673 dev_err(&hdev->dev, "cannot allocate multitouch slots\n");
674 hid_hw_stop(hdev);
675 ret = -ENOMEM;
676 goto fail;
677 }
678
eec29e3d
BT		 679 ret = sysfs_create_group(&hdev->dev.kobj, &mt_attribute_group);
680
31ae9bdd 681 mt_set_maxcontacts(hdev);
5519cab4
BT		 682 mt_set_input_mode(hdev);
683
684 return 0;
685
686fail:
687 kfree(td);
688 return ret;
689}
690
691#ifdef CONFIG_PM
692static int mt_reset_resume(struct hid_device *hdev)
693{
31ae9bdd 694 mt_set_maxcontacts(hdev);
5519cab4
BT		 695 mt_set_input_mode(hdev);
696 return 0;
697}
698#endif
699
700static void mt_remove(struct hid_device *hdev)
701{
702 struct mt_device *td = hid_get_drvdata(hdev);
eec29e3d 703 sysfs_remove_group(&hdev->dev.kobj, &mt_attribute_group);
5519cab4 704 hid_hw_stop(hdev);
9498f954 705 kfree(td->slots);
5519cab4
BT		 706 kfree(td);
707 hid_set_drvdata(hdev, NULL);
708}
709
710static const struct hid_device_id mt_devices[] = {
711
f786bba4
BT		 712 /* 3M panels */
713 { .driver_data = MT_CLS_3M,
714 HID_USB_DEVICE(USB_VENDOR_ID_3M,
715 USB_DEVICE_ID_3M1968) },
716 { .driver_data = MT_CLS_3M,
717 HID_USB_DEVICE(USB_VENDOR_ID_3M,
718 USB_DEVICE_ID_3M2256) },
c4fad877
BT		 719 { .driver_data = MT_CLS_3M,
720 HID_USB_DEVICE(USB_VENDOR_ID_3M,
721 USB_DEVICE_ID_3M3266) },
f786bba4 722
e6aac342
BT		 723 /* ActionStar panels */
724 { .driver_data = MT_CLS_DEFAULT,
725 HID_USB_DEVICE(USB_VENDOR_ID_ACTIONSTAR,
726 USB_DEVICE_ID_ACTIONSTAR_1011) },
727
b1057124
BT		 728 /* Atmel panels */
729 { .driver_data = MT_CLS_SERIAL,
730 HID_USB_DEVICE(USB_VENDOR_ID_ATMEL,
731 USB_DEVICE_ID_ATMEL_MULTITOUCH) },
841cb157
BT		 732 { .driver_data = MT_CLS_SERIAL,
733 HID_USB_DEVICE(USB_VENDOR_ID_ATMEL,
734 USB_DEVICE_ID_ATMEL_MXT_DIGITIZER) },
b1057124 735
a841b62c
BT		 736 /* Cando panels */
737 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
738 HID_USB_DEVICE(USB_VENDOR_ID_CANDO,
739 USB_DEVICE_ID_CANDO_MULTI_TOUCH) },
740 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
741 HID_USB_DEVICE(USB_VENDOR_ID_CANDO,
742 USB_DEVICE_ID_CANDO_MULTI_TOUCH_10_1) },
743 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
744 HID_USB_DEVICE(USB_VENDOR_ID_CANDO,
745 USB_DEVICE_ID_CANDO_MULTI_TOUCH_11_6) },
746 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
747 HID_USB_DEVICE(USB_VENDOR_ID_CANDO,
748 USB_DEVICE_ID_CANDO_MULTI_TOUCH_15_6) },
749
942fd422
AZ		 750 /* Chunghwa Telecom touch panels */
751 { .driver_data = MT_CLS_DEFAULT,
752 HID_USB_DEVICE(USB_VENDOR_ID_CHUNGHWAT,
753 USB_DEVICE_ID_CHUNGHWAT_MULTITOUCH) },
754
79603dc9
BT		 755 /* CVTouch panels */
756 { .driver_data = MT_CLS_DEFAULT,
757 HID_USB_DEVICE(USB_VENDOR_ID_CVTOUCH,
758 USB_DEVICE_ID_CVTOUCH_SCREEN) },
759
a3b5e577
BT		 760 /* Cypress panel */
761 { .driver_data = MT_CLS_CYPRESS,
762 HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS,
763 USB_DEVICE_ID_CYPRESS_TRUETOUCH) },
764
22408283 765 /* eGalax devices (resistive) */
e36f690b 766 { .driver_data = MT_CLS_EGALAX,
22408283 767 HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
e36f690b
BT		 768 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_480D) },
769 { .driver_data = MT_CLS_EGALAX,
22408283 770 HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
e36f690b 771 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_480E) },
22408283
BT		 772
773 /* eGalax devices (capacitive) */
e36f690b 774 { .driver_data = MT_CLS_EGALAX,
22408283 775 HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
e36f690b 776 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_720C) },
fd1d1525
BT		 777 { .driver_data = MT_CLS_EGALAX_SERIAL,
778 HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
779 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7207) },
780 { .driver_data = MT_CLS_EGALAX_SERIAL,
781 HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
782 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_725E) },
783 { .driver_data = MT_CLS_EGALAX_SERIAL,
784 HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
785 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7224) },
2ce09df4
BT		 786 { .driver_data = MT_CLS_EGALAX_SERIAL,
787 HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
788 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_722A) },
e36f690b 789 { .driver_data = MT_CLS_EGALAX,
22408283 790 HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
e36f690b 791 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_726B) },
fd1d1525
BT		 792 { .driver_data = MT_CLS_EGALAX_SERIAL,
793 HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
794 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7262) },
e36f690b 795 { .driver_data = MT_CLS_EGALAX,
22408283 796 HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
e36f690b 797 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72A1) },
fd1d1525
BT		 798 { .driver_data = MT_CLS_EGALAX_SERIAL,
799 HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
800 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72AA) },
66f06127
BT		 801 { .driver_data = MT_CLS_EGALAX,
802 HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
803 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72FA) },
bb9ff210
MV		 804 { .driver_data = MT_CLS_EGALAX,
805 HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
806 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7302) },
fd1d1525
BT		 807 { .driver_data = MT_CLS_EGALAX_SERIAL,
808 HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
809 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7349) },
1b723e8d 810 { .driver_data = MT_CLS_EGALAX_SERIAL,
1fd8f047 811 HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
e36f690b 812 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_A001) },
22408283 813
c04abeef
BT		 814 /* Elo TouchSystems IntelliTouch Plus panel */
815 { .driver_data = MT_CLS_DUAL_NSMU_CONTACTID,
816 HID_USB_DEVICE(USB_VENDOR_ID_ELO,
817 USB_DEVICE_ID_ELO_TS2515) },
818
5572da08 819 /* GeneralTouch panel */
1e9cf35b 820 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
5572da08
BT		 821 HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
822 USB_DEVICE_ID_GENERAL_TOUCH_WIN7_TWOFINGERS) },
823
ee0fbd14
BT		 824 /* GoodTouch panels */
825 { .driver_data = MT_CLS_DEFAULT,
826 HID_USB_DEVICE(USB_VENDOR_ID_GOODTOUCH,
827 USB_DEVICE_ID_GOODTOUCH_000f) },
828
54580365
BT		 829 /* Hanvon panels */
830 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID,
831 HID_USB_DEVICE(USB_VENDOR_ID_HANVON_ALT,
832 USB_DEVICE_ID_HANVON_ALT_MULTITOUCH) },
833
a062cc5a
SC		 834 /* Ideacom panel */
835 { .driver_data = MT_CLS_SERIAL,
836 HID_USB_DEVICE(USB_VENDOR_ID_IDEACOM,
837 USB_DEVICE_ID_IDEACOM_IDC6650) },
71078b0d
BT		 838 { .driver_data = MT_CLS_SERIAL,
839 HID_USB_DEVICE(USB_VENDOR_ID_IDEACOM,
840 USB_DEVICE_ID_IDEACOM_IDC6651) },
a062cc5a 841
4e61f0d7
AZ		 842 /* Ilitek dual touch panel */
843 { .driver_data = MT_CLS_DEFAULT,
844 HID_USB_DEVICE(USB_VENDOR_ID_ILITEK,
845 USB_DEVICE_ID_ILITEK_MULTITOUCH) },
846
4dfcced8
BT		 847 /* IRTOUCH panels */
848 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID,
849 HID_USB_DEVICE(USB_VENDOR_ID_IRTOUCHSYSTEMS,
850 USB_DEVICE_ID_IRTOUCH_INFRARED_USB) },
851
c50bb1a4
JB		 852 /* LG Display panels */
853 { .driver_data = MT_CLS_DEFAULT,
854 HID_USB_DEVICE(USB_VENDOR_ID_LG,
855 USB_DEVICE_ID_LG_MULTITOUCH) },
856
df167c4a
BT		 857 /* Lumio panels */
858 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
859 HID_USB_DEVICE(USB_VENDOR_ID_LUMIO,
860 USB_DEVICE_ID_CRYSTALTOUCH) },
c3ead6de
BT		 861 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
862 HID_USB_DEVICE(USB_VENDOR_ID_LUMIO,
863 USB_DEVICE_ID_CRYSTALTOUCH_DUAL) },
df167c4a 864
4a6ee685
BT		 865 /* MosArt panels */
866 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
867 HID_USB_DEVICE(USB_VENDOR_ID_ASUS,
868 USB_DEVICE_ID_ASUS_T91MT)},
869 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
870 HID_USB_DEVICE(USB_VENDOR_ID_ASUS,
871 USB_DEVICE_ID_ASUSTEK_MULTITOUCH_YFO) },
872 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
873 HID_USB_DEVICE(USB_VENDOR_ID_TURBOX,
874 USB_DEVICE_ID_TURBOX_TOUCHSCREEN_MOSART) },
875
2258e863
DK		 876 /* Panasonic panels */
877 { .driver_data = MT_CLS_PANASONIC,
878 HID_USB_DEVICE(USB_VENDOR_ID_PANASONIC,
879 USB_DEVICE_ID_PANABOARD_UBT780) },
880 { .driver_data = MT_CLS_PANASONIC,
881 HID_USB_DEVICE(USB_VENDOR_ID_PANASONIC,
882 USB_DEVICE_ID_PANABOARD_UBT880) },
883
6ab3a9a6
JS		 884 /* PenMount panels */
885 { .driver_data = MT_CLS_CONFIDENCE,
886 HID_USB_DEVICE(USB_VENDOR_ID_PENMOUNT,
887 USB_DEVICE_ID_PENMOUNT_PCI) },
888
b7ea95ff
AT		 889 /* PixArt optical touch screen */
890 { .driver_data = MT_CLS_INRANGE_CONTACTNUMBER,
891 HID_USB_DEVICE(USB_VENDOR_ID_PIXART,
892 USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN) },
893 { .driver_data = MT_CLS_INRANGE_CONTACTNUMBER,
894 HID_USB_DEVICE(USB_VENDOR_ID_PIXART,
895 USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN1) },
896 { .driver_data = MT_CLS_INRANGE_CONTACTNUMBER,
897 HID_USB_DEVICE(USB_VENDOR_ID_PIXART,
898 USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN2) },
899
5519cab4 900 /* PixCir-based panels */
1e9cf35b 901 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID,
5519cab4
BT		 902 HID_USB_DEVICE(USB_VENDOR_ID_HANVON,
903 USB_DEVICE_ID_HANVON_MULTITOUCH) },
1e9cf35b 904 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID,
5519cab4
BT		 905 HID_USB_DEVICE(USB_VENDOR_ID_CANDO,
906 USB_DEVICE_ID_CANDO_PIXCIR_MULTI_TOUCH) },
907
5e7ea11f
BT		 908 /* Quanta-based panels */
909 { .driver_data = MT_CLS_CONFIDENCE_CONTACT_ID,
910 HID_USB_DEVICE(USB_VENDOR_ID_QUANTA,
911 USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH) },
912 { .driver_data = MT_CLS_CONFIDENCE_CONTACT_ID,
913 HID_USB_DEVICE(USB_VENDOR_ID_QUANTA,
914 USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3001) },
915 { .driver_data = MT_CLS_CONFIDENCE_CONTACT_ID,
916 HID_USB_DEVICE(USB_VENDOR_ID_QUANTA,
917 USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3008) },
918
043b403a 919 /* Stantum panels */
bf5af9b5 920 { .driver_data = MT_CLS_CONFIDENCE,
043b403a
BT		 921 HID_USB_DEVICE(USB_VENDOR_ID_STANTUM,
922 USB_DEVICE_ID_MTP)},
bf5af9b5 923 { .driver_data = MT_CLS_CONFIDENCE,
85a60082 924 HID_USB_DEVICE(USB_VENDOR_ID_STANTUM_STM,
043b403a 925 USB_DEVICE_ID_MTP_STM)},
bf5af9b5 926 { .driver_data = MT_CLS_CONFIDENCE,
85a60082 927 HID_USB_DEVICE(USB_VENDOR_ID_STANTUM_SITRONIX,
043b403a
BT		 928 USB_DEVICE_ID_MTP_SITRONIX)},
929
847672cd
BT		 930 /* TopSeed panels */
931 { .driver_data = MT_CLS_TOPSEED,
932 HID_USB_DEVICE(USB_VENDOR_ID_TOPSEED2,
933 USB_DEVICE_ID_TOPSEED2_PERIPAD_701) },
934
5e74e56d
BT		 935 /* Touch International panels */
936 { .driver_data = MT_CLS_DEFAULT,
937 HID_USB_DEVICE(USB_VENDOR_ID_TOUCH_INTL,
938 USB_DEVICE_ID_TOUCH_INTL_MULTI_TOUCH) },
939
617b64f9
BT		 940 /* Unitec panels */
941 { .driver_data = MT_CLS_DEFAULT,
942 HID_USB_DEVICE(USB_VENDOR_ID_UNITEC,
943 USB_DEVICE_ID_UNITEC_USB_TOUCH_0709) },
944 { .driver_data = MT_CLS_DEFAULT,
945 HID_USB_DEVICE(USB_VENDOR_ID_UNITEC,
946 USB_DEVICE_ID_UNITEC_USB_TOUCH_0A19) },
bc8a2a9b 947 /* XAT */
948 { .driver_data = MT_CLS_DEFAULT,
949 HID_USB_DEVICE(USB_VENDOR_ID_XAT,
950 USB_DEVICE_ID_XAT_CSR) },
617b64f9 951
11576c61
MH		 952 /* Xiroku */
953 { .driver_data = MT_CLS_DEFAULT,
954 HID_USB_DEVICE(USB_VENDOR_ID_XIROKU,
955 USB_DEVICE_ID_XIROKU_SPX) },
956 { .driver_data = MT_CLS_DEFAULT,
957 HID_USB_DEVICE(USB_VENDOR_ID_XIROKU,
958 USB_DEVICE_ID_XIROKU_MPX) },
959 { .driver_data = MT_CLS_DEFAULT,
960 HID_USB_DEVICE(USB_VENDOR_ID_XIROKU,
961 USB_DEVICE_ID_XIROKU_CSR) },
962 { .driver_data = MT_CLS_DEFAULT,
963 HID_USB_DEVICE(USB_VENDOR_ID_XIROKU,
964 USB_DEVICE_ID_XIROKU_SPX1) },
965 { .driver_data = MT_CLS_DEFAULT,
966 HID_USB_DEVICE(USB_VENDOR_ID_XIROKU,
967 USB_DEVICE_ID_XIROKU_MPX1) },
968 { .driver_data = MT_CLS_DEFAULT,
969 HID_USB_DEVICE(USB_VENDOR_ID_XIROKU,
970 USB_DEVICE_ID_XIROKU_CSR1) },
971 { .driver_data = MT_CLS_DEFAULT,
972 HID_USB_DEVICE(USB_VENDOR_ID_XIROKU,
973 USB_DEVICE_ID_XIROKU_SPX2) },
974 { .driver_data = MT_CLS_DEFAULT,
975 HID_USB_DEVICE(USB_VENDOR_ID_XIROKU,
976 USB_DEVICE_ID_XIROKU_MPX2) },
977 { .driver_data = MT_CLS_DEFAULT,
978 HID_USB_DEVICE(USB_VENDOR_ID_XIROKU,
979 USB_DEVICE_ID_XIROKU_CSR2) },
980
5519cab4
BT		 981 { }
982};
983MODULE_DEVICE_TABLE(hid, mt_devices);
984
985static const struct hid_usage_id mt_grabbed_usages[] = {
986 { HID_ANY_ID, HID_ANY_ID, HID_ANY_ID },
987 { HID_ANY_ID - 1, HID_ANY_ID - 1, HID_ANY_ID - 1}
988};
989
990static struct hid_driver mt_driver = {
991 .name = "hid-multitouch",
992 .id_table = mt_devices,
993 .probe = mt_probe,
994 .remove = mt_remove,
995 .input_mapping = mt_input_mapping,
996 .input_mapped = mt_input_mapped,
997 .feature_mapping = mt_feature_mapping,
998 .usage_table = mt_grabbed_usages,
999 .event = mt_event,
1000#ifdef CONFIG_PM
1001 .reset_resume = mt_reset_resume,
1002#endif
1003};
1004
1005static int __init mt_init(void)
1006{
1007 return hid_register_driver(&mt_driver);
1008}
1009
1010static void __exit mt_exit(void)
1011{
1012 hid_unregister_driver(&mt_driver);
1013}
1014
1015module_init(mt_init);
1016module_exit(mt_exit);
Linux kernel - Deliverables
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