1 /* 2 * HID driver for multitouch panels 3 * 4 * Copyright (c) 2010-2012 Stephane Chatty <chatty@enac.fr> 5 * Copyright (c) 2010-2013 Benjamin Tissoires <benjamin.tissoires@gmail.com> 6 * Copyright (c) 2010-2012 Ecole Nationale de l'Aviation Civile, France 7 * Copyright (c) 2012-2013 Red Hat, Inc 8 * 9 * This code is partly based on hid-egalax.c: 10 * 11 * Copyright (c) 2010 Stephane Chatty <chatty@enac.fr> 12 * Copyright (c) 2010 Henrik Rydberg <rydberg@euromail.se> 13 * Copyright (c) 2010 Canonical, Ltd. 14 * 15 * This code is partly based on hid-3m-pct.c: 16 * 17 * Copyright (c) 2009-2010 Stephane Chatty <chatty@enac.fr> 18 * Copyright (c) 2010 Henrik Rydberg <rydberg@euromail.se> 19 * Copyright (c) 2010 Canonical, Ltd. 20 * 21 */ 22 23 /* 24 * This program is free software; you can redistribute it and/or modify it 25 * under the terms of the GNU General Public License as published by the Free 26 * Software Foundation; either version 2 of the License, or (at your option) 27 * any later version. 28 */ 29 30 /* 31 * This driver is regularly tested thanks to the tool hid-test[1]. 32 * This tool relies on hid-replay[2] and a database of hid devices[3]. 33 * Please run these regression tests before patching this module so that 34 * your patch won't break existing known devices. 35 * 36 * [1] https://github.com/bentiss/hid-test 37 * [2] https://github.com/bentiss/hid-replay 38 * [3] https://github.com/bentiss/hid-devices 39 */ 40 41 #include <linux/device.h> 42 #include <linux/hid.h> 43 #include <linux/module.h> 44 #include <linux/slab.h> 45 #include <linux/usb.h> 46 #include <linux/input/mt.h> 47 #include <linux/string.h> 48 49 50 MODULE_AUTHOR("Stephane Chatty <chatty@enac.fr>"); 51 MODULE_AUTHOR("Benjamin Tissoires <benjamin.tissoires@gmail.com>"); 52 MODULE_DESCRIPTION("HID multitouch panels"); 53 MODULE_LICENSE("GPL"); 54 55 #include "hid-ids.h" 56 57 /* quirks to control the device */ 58 #define MT_QUIRK_NOT_SEEN_MEANS_UP (1 << 0) 59 #define MT_QUIRK_SLOT_IS_CONTACTID (1 << 1) 60 #define MT_QUIRK_CYPRESS (1 << 2) 61 #define MT_QUIRK_SLOT_IS_CONTACTNUMBER (1 << 3) 62 #define MT_QUIRK_ALWAYS_VALID (1 << 4) 63 #define MT_QUIRK_VALID_IS_INRANGE (1 << 5) 64 #define MT_QUIRK_VALID_IS_CONFIDENCE (1 << 6) 65 #define MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE (1 << 8) 66 #define MT_QUIRK_NO_AREA (1 << 9) 67 #define MT_QUIRK_IGNORE_DUPLICATES (1 << 10) 68 #define MT_QUIRK_HOVERING (1 << 11) 69 #define MT_QUIRK_CONTACT_CNT_ACCURATE (1 << 12) 70 71 #define MT_INPUTMODE_TOUCHSCREEN 0x02 72 #define MT_INPUTMODE_TOUCHPAD 0x03 73 74 struct mt_slot { 75 __s32 x, y, cx, cy, p, w, h; 76 __s32 contactid; /* the device ContactID assigned to this slot */ 77 bool touch_state; /* is the touch valid? */ 78 bool inrange_state; /* is the finger in proximity of the sensor? */ 79 }; 80 81 struct mt_class { 82 __s32 name; /* MT_CLS */ 83 __s32 quirks; 84 __s32 sn_move; /* Signal/noise ratio for move events */ 85 __s32 sn_width; /* Signal/noise ratio for width events */ 86 __s32 sn_height; /* Signal/noise ratio for height events */ 87 __s32 sn_pressure; /* Signal/noise ratio for pressure events */ 88 __u8 maxcontacts; 89 bool is_indirect; /* true for touchpads */ 90 bool export_all_inputs; /* do not ignore mouse, keyboards, etc... */ 91 }; 92 93 struct mt_fields { 94 unsigned usages[HID_MAX_FIELDS]; 95 unsigned int length; 96 }; 97 98 struct mt_device { 99 struct mt_slot curdata; /* placeholder of incoming data */ 100 struct mt_class mtclass; /* our mt device class */ 101 struct mt_fields *fields; /* temporary placeholder for storing the 102 multitouch fields */ 103 int cc_index; /* contact count field index in the report */ 104 int cc_value_index; /* contact count value index in the field */ 105 unsigned last_slot_field; /* the last field of a slot */ 106 unsigned mt_report_id; /* the report ID of the multitouch device */ 107 __s16 inputmode; /* InputMode HID feature, -1 if non-existent */ 108 __s16 inputmode_index; /* InputMode HID feature index in the report */ 109 __s16 maxcontact_report_id; /* Maximum Contact Number HID feature, 110 -1 if non-existent */ 111 __u8 inputmode_value; /* InputMode HID feature value */ 112 __u8 num_received; /* how many contacts we received */ 113 __u8 num_expected; /* expected last contact index */ 114 __u8 maxcontacts; 115 __u8 touches_by_report; /* how many touches are present in one report: 116 * 1 means we should use a serial protocol 117 * > 1 means hybrid (multitouch) protocol */ 118 bool serial_maybe; /* need to check for serial protocol */ 119 bool curvalid; /* is the current contact valid? */ 120 unsigned mt_flags; /* flags to pass to input-mt */ 121 }; 122 123 static void mt_post_parse_default_settings(struct mt_device *td); 124 static void mt_post_parse(struct mt_device *td); 125 126 /* classes of device behavior */ 127 #define MT_CLS_DEFAULT 0x0001 128 129 #define MT_CLS_SERIAL 0x0002 130 #define MT_CLS_CONFIDENCE 0x0003 131 #define MT_CLS_CONFIDENCE_CONTACT_ID 0x0004 132 #define MT_CLS_CONFIDENCE_MINUS_ONE 0x0005 133 #define MT_CLS_DUAL_INRANGE_CONTACTID 0x0006 134 #define MT_CLS_DUAL_INRANGE_CONTACTNUMBER 0x0007 135 /* reserved 0x0008 */ 136 #define MT_CLS_INRANGE_CONTACTNUMBER 0x0009 137 #define MT_CLS_NSMU 0x000a 138 /* reserved 0x0010 */ 139 /* reserved 0x0011 */ 140 #define MT_CLS_WIN_8 0x0012 141 #define MT_CLS_EXPORT_ALL_INPUTS 0x0013 142 143 /* vendor specific classes */ 144 #define MT_CLS_3M 0x0101 145 /* reserved 0x0102 */ 146 #define MT_CLS_EGALAX 0x0103 147 #define MT_CLS_EGALAX_SERIAL 0x0104 148 #define MT_CLS_TOPSEED 0x0105 149 #define MT_CLS_PANASONIC 0x0106 150 #define MT_CLS_FLATFROG 0x0107 151 #define MT_CLS_GENERALTOUCH_TWOFINGERS 0x0108 152 #define MT_CLS_GENERALTOUCH_PWT_TENFINGERS 0x0109 153 154 #define MT_DEFAULT_MAXCONTACT 10 155 #define MT_MAX_MAXCONTACT 250 156 157 #define MT_USB_DEVICE(v, p) HID_DEVICE(BUS_USB, HID_GROUP_MULTITOUCH, v, p) 158 #define MT_BT_DEVICE(v, p) HID_DEVICE(BUS_BLUETOOTH, HID_GROUP_MULTITOUCH, v, p) 159 160 /* 161 * these device-dependent functions determine what slot corresponds 162 * to a valid contact that was just read. 163 */ 164 165 static int cypress_compute_slot(struct mt_device *td) 166 { 167 if (td->curdata.contactid != 0 || td->num_received == 0) 168 return td->curdata.contactid; 169 else 170 return -1; 171 } 172 173 static struct mt_class mt_classes[] = { 174 { .name = MT_CLS_DEFAULT, 175 .quirks = MT_QUIRK_ALWAYS_VALID | 176 MT_QUIRK_CONTACT_CNT_ACCURATE }, 177 { .name = MT_CLS_NSMU, 178 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP }, 179 { .name = MT_CLS_SERIAL, 180 .quirks = MT_QUIRK_ALWAYS_VALID}, 181 { .name = MT_CLS_CONFIDENCE, 182 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE }, 183 { .name = MT_CLS_CONFIDENCE_CONTACT_ID, 184 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE | 185 MT_QUIRK_SLOT_IS_CONTACTID }, 186 { .name = MT_CLS_CONFIDENCE_MINUS_ONE, 187 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE | 188 MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE }, 189 { .name = MT_CLS_DUAL_INRANGE_CONTACTID, 190 .quirks = MT_QUIRK_VALID_IS_INRANGE | 191 MT_QUIRK_SLOT_IS_CONTACTID, 192 .maxcontacts = 2 }, 193 { .name = MT_CLS_DUAL_INRANGE_CONTACTNUMBER, 194 .quirks = MT_QUIRK_VALID_IS_INRANGE | 195 MT_QUIRK_SLOT_IS_CONTACTNUMBER, 196 .maxcontacts = 2 }, 197 { .name = MT_CLS_INRANGE_CONTACTNUMBER, 198 .quirks = MT_QUIRK_VALID_IS_INRANGE | 199 MT_QUIRK_SLOT_IS_CONTACTNUMBER }, 200 { .name = MT_CLS_WIN_8, 201 .quirks = MT_QUIRK_ALWAYS_VALID | 202 MT_QUIRK_IGNORE_DUPLICATES | 203 MT_QUIRK_HOVERING | 204 MT_QUIRK_CONTACT_CNT_ACCURATE }, 205 { .name = MT_CLS_EXPORT_ALL_INPUTS, 206 .quirks = MT_QUIRK_ALWAYS_VALID | 207 MT_QUIRK_CONTACT_CNT_ACCURATE, 208 .export_all_inputs = true }, 209 210 /* 211 * vendor specific classes 212 */ 213 { .name = MT_CLS_3M, 214 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE | 215 MT_QUIRK_SLOT_IS_CONTACTID, 216 .sn_move = 2048, 217 .sn_width = 128, 218 .sn_height = 128, 219 .maxcontacts = 60, 220 }, 221 { .name = MT_CLS_EGALAX, 222 .quirks = MT_QUIRK_SLOT_IS_CONTACTID | 223 MT_QUIRK_VALID_IS_INRANGE, 224 .sn_move = 4096, 225 .sn_pressure = 32, 226 }, 227 { .name = MT_CLS_EGALAX_SERIAL, 228 .quirks = MT_QUIRK_SLOT_IS_CONTACTID | 229 MT_QUIRK_ALWAYS_VALID, 230 .sn_move = 4096, 231 .sn_pressure = 32, 232 }, 233 { .name = MT_CLS_TOPSEED, 234 .quirks = MT_QUIRK_ALWAYS_VALID, 235 .is_indirect = true, 236 .maxcontacts = 2, 237 }, 238 { .name = MT_CLS_PANASONIC, 239 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP, 240 .maxcontacts = 4 }, 241 { .name = MT_CLS_GENERALTOUCH_TWOFINGERS, 242 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP | 243 MT_QUIRK_VALID_IS_INRANGE | 244 MT_QUIRK_SLOT_IS_CONTACTID, 245 .maxcontacts = 2 246 }, 247 { .name = MT_CLS_GENERALTOUCH_PWT_TENFINGERS, 248 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP | 249 MT_QUIRK_SLOT_IS_CONTACTID 250 }, 251 252 { .name = MT_CLS_FLATFROG, 253 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP | 254 MT_QUIRK_NO_AREA, 255 .sn_move = 2048, 256 .maxcontacts = 40, 257 }, 258 { } 259 }; 260 261 static ssize_t mt_show_quirks(struct device *dev, 262 struct device_attribute *attr, 263 char *buf) 264 { 265 struct hid_device *hdev = container_of(dev, struct hid_device, dev); 266 struct mt_device *td = hid_get_drvdata(hdev); 267 268 return sprintf(buf, "%u\n", td->mtclass.quirks); 269 } 270 271 static ssize_t mt_set_quirks(struct device *dev, 272 struct device_attribute *attr, 273 const char *buf, size_t count) 274 { 275 struct hid_device *hdev = container_of(dev, struct hid_device, dev); 276 struct mt_device *td = hid_get_drvdata(hdev); 277 278 unsigned long val; 279 280 if (kstrtoul(buf, 0, &val)) 281 return -EINVAL; 282 283 td->mtclass.quirks = val; 284 285 if (td->cc_index < 0) 286 td->mtclass.quirks &= ~MT_QUIRK_CONTACT_CNT_ACCURATE; 287 288 return count; 289 } 290 291 static DEVICE_ATTR(quirks, S_IWUSR | S_IRUGO, mt_show_quirks, mt_set_quirks); 292 293 static struct attribute *sysfs_attrs[] = { 294 &dev_attr_quirks.attr, 295 NULL 296 }; 297 298 static struct attribute_group mt_attribute_group = { 299 .attrs = sysfs_attrs 300 }; 301 302 static void mt_feature_mapping(struct hid_device *hdev, 303 struct hid_field *field, struct hid_usage *usage) 304 { 305 struct mt_device *td = hid_get_drvdata(hdev); 306 307 switch (usage->hid) { 308 case HID_DG_INPUTMODE: 309 /* Ignore if value index is out of bounds. */ 310 if (usage->usage_index >= field->report_count) { 311 dev_err(&hdev->dev, "HID_DG_INPUTMODE out of range\n"); 312 break; 313 } 314 315 td->inputmode = field->report->id; 316 td->inputmode_index = usage->usage_index; 317 318 break; 319 case HID_DG_CONTACTMAX: 320 td->maxcontact_report_id = field->report->id; 321 td->maxcontacts = field->value[0]; 322 if (!td->maxcontacts && 323 field->logical_maximum <= MT_MAX_MAXCONTACT) 324 td->maxcontacts = field->logical_maximum; 325 if (td->mtclass.maxcontacts) 326 /* check if the maxcontacts is given by the class */ 327 td->maxcontacts = td->mtclass.maxcontacts; 328 329 break; 330 } 331 } 332 333 static void set_abs(struct input_dev *input, unsigned int code, 334 struct hid_field *field, int snratio) 335 { 336 int fmin = field->logical_minimum; 337 int fmax = field->logical_maximum; 338 int fuzz = snratio ? (fmax - fmin) / snratio : 0; 339 input_set_abs_params(input, code, fmin, fmax, fuzz, 0); 340 input_abs_set_res(input, code, hidinput_calc_abs_res(field, code)); 341 } 342 343 static void mt_store_field(struct hid_usage *usage, struct mt_device *td, 344 struct hid_input *hi) 345 { 346 struct mt_fields *f = td->fields; 347 348 if (f->length >= HID_MAX_FIELDS) 349 return; 350 351 f->usages[f->length++] = usage->hid; 352 } 353 354 static int mt_touch_input_mapping(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 struct mt_device *td = hid_get_drvdata(hdev); 359 struct mt_class *cls = &td->mtclass; 360 int code; 361 struct hid_usage *prev_usage = NULL; 362 363 if (field->application == HID_DG_TOUCHSCREEN) 364 td->mt_flags |= INPUT_MT_DIRECT; 365 366 /* 367 * Model touchscreens providing buttons as touchpads. 368 */ 369 if (field->application == HID_DG_TOUCHPAD || 370 (usage->hid & HID_USAGE_PAGE) == HID_UP_BUTTON) { 371 td->mt_flags |= INPUT_MT_POINTER; 372 td->inputmode_value = MT_INPUTMODE_TOUCHPAD; 373 } 374 375 if (usage->usage_index) 376 prev_usage = &field->usage[usage->usage_index - 1]; 377 378 switch (usage->hid & HID_USAGE_PAGE) { 379 380 case HID_UP_GENDESK: 381 switch (usage->hid) { 382 case HID_GD_X: 383 if (prev_usage && (prev_usage->hid == usage->hid)) { 384 hid_map_usage(hi, usage, bit, max, 385 EV_ABS, ABS_MT_TOOL_X); 386 set_abs(hi->input, ABS_MT_TOOL_X, field, 387 cls->sn_move); 388 } else { 389 hid_map_usage(hi, usage, bit, max, 390 EV_ABS, ABS_MT_POSITION_X); 391 set_abs(hi->input, ABS_MT_POSITION_X, field, 392 cls->sn_move); 393 } 394 395 mt_store_field(usage, td, hi); 396 return 1; 397 case HID_GD_Y: 398 if (prev_usage && (prev_usage->hid == usage->hid)) { 399 hid_map_usage(hi, usage, bit, max, 400 EV_ABS, ABS_MT_TOOL_Y); 401 set_abs(hi->input, ABS_MT_TOOL_Y, field, 402 cls->sn_move); 403 } else { 404 hid_map_usage(hi, usage, bit, max, 405 EV_ABS, ABS_MT_POSITION_Y); 406 set_abs(hi->input, ABS_MT_POSITION_Y, field, 407 cls->sn_move); 408 } 409 410 mt_store_field(usage, td, hi); 411 return 1; 412 } 413 return 0; 414 415 case HID_UP_DIGITIZER: 416 switch (usage->hid) { 417 case HID_DG_INRANGE: 418 if (cls->quirks & MT_QUIRK_HOVERING) { 419 hid_map_usage(hi, usage, bit, max, 420 EV_ABS, ABS_MT_DISTANCE); 421 input_set_abs_params(hi->input, 422 ABS_MT_DISTANCE, 0, 1, 0, 0); 423 } 424 mt_store_field(usage, td, hi); 425 return 1; 426 case HID_DG_CONFIDENCE: 427 mt_store_field(usage, td, hi); 428 return 1; 429 case HID_DG_TIPSWITCH: 430 hid_map_usage(hi, usage, bit, max, EV_KEY, BTN_TOUCH); 431 input_set_capability(hi->input, EV_KEY, BTN_TOUCH); 432 mt_store_field(usage, td, hi); 433 return 1; 434 case HID_DG_CONTACTID: 435 mt_store_field(usage, td, hi); 436 td->touches_by_report++; 437 td->mt_report_id = field->report->id; 438 return 1; 439 case HID_DG_WIDTH: 440 hid_map_usage(hi, usage, bit, max, 441 EV_ABS, ABS_MT_TOUCH_MAJOR); 442 if (!(cls->quirks & MT_QUIRK_NO_AREA)) 443 set_abs(hi->input, ABS_MT_TOUCH_MAJOR, field, 444 cls->sn_width); 445 mt_store_field(usage, td, hi); 446 return 1; 447 case HID_DG_HEIGHT: 448 hid_map_usage(hi, usage, bit, max, 449 EV_ABS, ABS_MT_TOUCH_MINOR); 450 if (!(cls->quirks & MT_QUIRK_NO_AREA)) { 451 set_abs(hi->input, ABS_MT_TOUCH_MINOR, field, 452 cls->sn_height); 453 input_set_abs_params(hi->input, 454 ABS_MT_ORIENTATION, 0, 1, 0, 0); 455 } 456 mt_store_field(usage, td, hi); 457 return 1; 458 case HID_DG_TIPPRESSURE: 459 hid_map_usage(hi, usage, bit, max, 460 EV_ABS, ABS_MT_PRESSURE); 461 set_abs(hi->input, ABS_MT_PRESSURE, field, 462 cls->sn_pressure); 463 mt_store_field(usage, td, hi); 464 return 1; 465 case HID_DG_CONTACTCOUNT: 466 /* Ignore if indexes are out of bounds. */ 467 if (field->index >= field->report->maxfield || 468 usage->usage_index >= field->report_count) 469 return 1; 470 td->cc_index = field->index; 471 td->cc_value_index = usage->usage_index; 472 return 1; 473 case HID_DG_CONTACTMAX: 474 /* we don't set td->last_slot_field as contactcount and 475 * contact max are global to the report */ 476 return -1; 477 case HID_DG_TOUCH: 478 /* Legacy devices use TIPSWITCH and not TOUCH. 479 * Let's just ignore this field. */ 480 return -1; 481 } 482 /* let hid-input decide for the others */ 483 return 0; 484 485 case HID_UP_BUTTON: 486 code = BTN_MOUSE + ((usage->hid - 1) & HID_USAGE); 487 hid_map_usage(hi, usage, bit, max, EV_KEY, code); 488 input_set_capability(hi->input, EV_KEY, code); 489 return 1; 490 491 case 0xff000000: 492 /* we do not want to map these: no input-oriented meaning */ 493 return -1; 494 } 495 496 return 0; 497 } 498 499 static int mt_touch_input_mapped(struct hid_device *hdev, struct hid_input *hi, 500 struct hid_field *field, struct hid_usage *usage, 501 unsigned long **bit, int *max) 502 { 503 if (usage->type == EV_KEY || usage->type == EV_ABS) 504 set_bit(usage->type, hi->input->evbit); 505 506 return -1; 507 } 508 509 static int mt_compute_slot(struct mt_device *td, struct input_dev *input) 510 { 511 __s32 quirks = td->mtclass.quirks; 512 513 if (quirks & MT_QUIRK_SLOT_IS_CONTACTID) 514 return td->curdata.contactid; 515 516 if (quirks & MT_QUIRK_CYPRESS) 517 return cypress_compute_slot(td); 518 519 if (quirks & MT_QUIRK_SLOT_IS_CONTACTNUMBER) 520 return td->num_received; 521 522 if (quirks & MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE) 523 return td->curdata.contactid - 1; 524 525 return input_mt_get_slot_by_key(input, td->curdata.contactid); 526 } 527 528 /* 529 * this function is called when a whole contact has been processed, 530 * so that it can assign it to a slot and store the data there 531 */ 532 static void mt_complete_slot(struct mt_device *td, struct input_dev *input) 533 { 534 if ((td->mtclass.quirks & MT_QUIRK_CONTACT_CNT_ACCURATE) && 535 td->num_received >= td->num_expected) 536 return; 537 538 if (td->curvalid || (td->mtclass.quirks & MT_QUIRK_ALWAYS_VALID)) { 539 int slotnum = mt_compute_slot(td, input); 540 struct mt_slot *s = &td->curdata; 541 struct input_mt *mt = input->mt; 542 543 if (slotnum < 0 || slotnum >= td->maxcontacts) 544 return; 545 546 if ((td->mtclass.quirks & MT_QUIRK_IGNORE_DUPLICATES) && mt) { 547 struct input_mt_slot *slot = &mt->slots[slotnum]; 548 if (input_mt_is_active(slot) && 549 input_mt_is_used(mt, slot)) 550 return; 551 } 552 553 input_mt_slot(input, slotnum); 554 input_mt_report_slot_state(input, MT_TOOL_FINGER, 555 s->touch_state || s->inrange_state); 556 if (s->touch_state || s->inrange_state) { 557 /* this finger is in proximity of the sensor */ 558 int wide = (s->w > s->h); 559 /* divided by two to match visual scale of touch */ 560 int major = max(s->w, s->h) >> 1; 561 int minor = min(s->w, s->h) >> 1; 562 563 input_event(input, EV_ABS, ABS_MT_POSITION_X, s->x); 564 input_event(input, EV_ABS, ABS_MT_POSITION_Y, s->y); 565 input_event(input, EV_ABS, ABS_MT_TOOL_X, s->cx); 566 input_event(input, EV_ABS, ABS_MT_TOOL_Y, s->cy); 567 input_event(input, EV_ABS, ABS_MT_DISTANCE, 568 !s->touch_state); 569 input_event(input, EV_ABS, ABS_MT_ORIENTATION, wide); 570 input_event(input, EV_ABS, ABS_MT_PRESSURE, s->p); 571 input_event(input, EV_ABS, ABS_MT_TOUCH_MAJOR, major); 572 input_event(input, EV_ABS, ABS_MT_TOUCH_MINOR, minor); 573 } 574 } 575 576 td->num_received++; 577 } 578 579 /* 580 * this function is called when a whole packet has been received and processed, 581 * so that it can decide what to send to the input layer. 582 */ 583 static void mt_sync_frame(struct mt_device *td, struct input_dev *input) 584 { 585 input_mt_sync_frame(input); 586 input_sync(input); 587 td->num_received = 0; 588 } 589 590 static int mt_touch_event(struct hid_device *hid, struct hid_field *field, 591 struct hid_usage *usage, __s32 value) 592 { 593 /* we will handle the hidinput part later, now remains hiddev */ 594 if (hid->claimed & HID_CLAIMED_HIDDEV && hid->hiddev_hid_event) 595 hid->hiddev_hid_event(hid, field, usage, value); 596 597 return 1; 598 } 599 600 static void mt_process_mt_event(struct hid_device *hid, struct hid_field *field, 601 struct hid_usage *usage, __s32 value) 602 { 603 struct mt_device *td = hid_get_drvdata(hid); 604 __s32 quirks = td->mtclass.quirks; 605 struct input_dev *input = field->hidinput->input; 606 607 if (hid->claimed & HID_CLAIMED_INPUT) { 608 switch (usage->hid) { 609 case HID_DG_INRANGE: 610 if (quirks & MT_QUIRK_VALID_IS_INRANGE) 611 td->curvalid = value; 612 if (quirks & MT_QUIRK_HOVERING) 613 td->curdata.inrange_state = value; 614 break; 615 case HID_DG_TIPSWITCH: 616 if (quirks & MT_QUIRK_NOT_SEEN_MEANS_UP) 617 td->curvalid = value; 618 td->curdata.touch_state = value; 619 break; 620 case HID_DG_CONFIDENCE: 621 if (quirks & MT_QUIRK_VALID_IS_CONFIDENCE) 622 td->curvalid = value; 623 break; 624 case HID_DG_CONTACTID: 625 td->curdata.contactid = value; 626 break; 627 case HID_DG_TIPPRESSURE: 628 td->curdata.p = value; 629 break; 630 case HID_GD_X: 631 if (usage->code == ABS_MT_TOOL_X) 632 td->curdata.cx = value; 633 else 634 td->curdata.x = value; 635 break; 636 case HID_GD_Y: 637 if (usage->code == ABS_MT_TOOL_Y) 638 td->curdata.cy = value; 639 else 640 td->curdata.y = value; 641 break; 642 case HID_DG_WIDTH: 643 td->curdata.w = value; 644 break; 645 case HID_DG_HEIGHT: 646 td->curdata.h = value; 647 break; 648 case HID_DG_CONTACTCOUNT: 649 break; 650 case HID_DG_TOUCH: 651 /* do nothing */ 652 break; 653 654 default: 655 if (usage->type) 656 input_event(input, usage->type, usage->code, 657 value); 658 return; 659 } 660 661 if (usage->usage_index + 1 == field->report_count) { 662 /* we only take into account the last report. */ 663 if (usage->hid == td->last_slot_field) 664 mt_complete_slot(td, field->hidinput->input); 665 } 666 667 } 668 } 669 670 static void mt_touch_report(struct hid_device *hid, struct hid_report *report) 671 { 672 struct mt_device *td = hid_get_drvdata(hid); 673 struct hid_field *field; 674 unsigned count; 675 int r, n; 676 677 /* 678 * Includes multi-packet support where subsequent 679 * packets are sent with zero contactcount. 680 */ 681 if (td->cc_index >= 0) { 682 struct hid_field *field = report->field[td->cc_index]; 683 int value = field->value[td->cc_value_index]; 684 if (value) 685 td->num_expected = value; 686 } 687 688 for (r = 0; r < report->maxfield; r++) { 689 field = report->field[r]; 690 count = field->report_count; 691 692 if (!(HID_MAIN_ITEM_VARIABLE & field->flags)) 693 continue; 694 695 for (n = 0; n < count; n++) 696 mt_process_mt_event(hid, field, &field->usage[n], 697 field->value[n]); 698 } 699 700 if (td->num_received >= td->num_expected) 701 mt_sync_frame(td, report->field[0]->hidinput->input); 702 } 703 704 static void mt_touch_input_configured(struct hid_device *hdev, 705 struct hid_input *hi) 706 { 707 struct mt_device *td = hid_get_drvdata(hdev); 708 struct mt_class *cls = &td->mtclass; 709 struct input_dev *input = hi->input; 710 711 if (!td->maxcontacts) 712 td->maxcontacts = MT_DEFAULT_MAXCONTACT; 713 714 mt_post_parse(td); 715 if (td->serial_maybe) 716 mt_post_parse_default_settings(td); 717 718 if (cls->is_indirect) 719 td->mt_flags |= INPUT_MT_POINTER; 720 721 if (cls->quirks & MT_QUIRK_NOT_SEEN_MEANS_UP) 722 td->mt_flags |= INPUT_MT_DROP_UNUSED; 723 724 input_mt_init_slots(input, td->maxcontacts, td->mt_flags); 725 726 td->mt_flags = 0; 727 } 728 729 static int mt_input_mapping(struct hid_device *hdev, struct hid_input *hi, 730 struct hid_field *field, struct hid_usage *usage, 731 unsigned long **bit, int *max) 732 { 733 struct mt_device *td = hid_get_drvdata(hdev); 734 735 /* 736 * If mtclass.export_all_inputs is not set, only map fields from 737 * TouchScreen or TouchPad collections. We need to ignore fields 738 * that belong to other collections such as Mouse that might have 739 * the same GenericDesktop usages. 740 */ 741 if (!td->mtclass.export_all_inputs && 742 field->application != HID_DG_TOUCHSCREEN && 743 field->application != HID_DG_PEN && 744 field->application != HID_DG_TOUCHPAD) 745 return -1; 746 747 /* 748 * some egalax touchscreens have "application == HID_DG_TOUCHSCREEN" 749 * for the stylus. 750 */ 751 if (field->physical == HID_DG_STYLUS) 752 return 0; 753 754 if (field->application == HID_DG_TOUCHSCREEN || 755 field->application == HID_DG_TOUCHPAD) 756 return mt_touch_input_mapping(hdev, hi, field, usage, bit, max); 757 758 /* let hid-core decide for the others */ 759 return 0; 760 } 761 762 static int mt_input_mapped(struct hid_device *hdev, struct hid_input *hi, 763 struct hid_field *field, struct hid_usage *usage, 764 unsigned long **bit, int *max) 765 { 766 /* 767 * some egalax touchscreens have "application == HID_DG_TOUCHSCREEN" 768 * for the stylus. 769 */ 770 if (field->physical == HID_DG_STYLUS) 771 return 0; 772 773 if (field->application == HID_DG_TOUCHSCREEN || 774 field->application == HID_DG_TOUCHPAD) 775 return mt_touch_input_mapped(hdev, hi, field, usage, bit, max); 776 777 /* let hid-core decide for the others */ 778 return 0; 779 } 780 781 static int mt_event(struct hid_device *hid, struct hid_field *field, 782 struct hid_usage *usage, __s32 value) 783 { 784 struct mt_device *td = hid_get_drvdata(hid); 785 786 if (field->report->id == td->mt_report_id) 787 return mt_touch_event(hid, field, usage, value); 788 789 return 0; 790 } 791 792 static void mt_report(struct hid_device *hid, struct hid_report *report) 793 { 794 struct mt_device *td = hid_get_drvdata(hid); 795 struct hid_field *field = report->field[0]; 796 797 if (!(hid->claimed & HID_CLAIMED_INPUT)) 798 return; 799 800 if (report->id == td->mt_report_id) 801 return mt_touch_report(hid, report); 802 803 if (field && field->hidinput && field->hidinput->input) 804 input_sync(field->hidinput->input); 805 } 806 807 static void mt_set_input_mode(struct hid_device *hdev) 808 { 809 struct mt_device *td = hid_get_drvdata(hdev); 810 struct hid_report *r; 811 struct hid_report_enum *re; 812 813 if (td->inputmode < 0) 814 return; 815 816 re = &(hdev->report_enum[HID_FEATURE_REPORT]); 817 r = re->report_id_hash[td->inputmode]; 818 if (r) { 819 r->field[0]->value[td->inputmode_index] = td->inputmode_value; 820 hid_hw_request(hdev, r, HID_REQ_SET_REPORT); 821 } 822 } 823 824 static void mt_set_maxcontacts(struct hid_device *hdev) 825 { 826 struct mt_device *td = hid_get_drvdata(hdev); 827 struct hid_report *r; 828 struct hid_report_enum *re; 829 int fieldmax, max; 830 831 if (td->maxcontact_report_id < 0) 832 return; 833 834 if (!td->mtclass.maxcontacts) 835 return; 836 837 re = &hdev->report_enum[HID_FEATURE_REPORT]; 838 r = re->report_id_hash[td->maxcontact_report_id]; 839 if (r) { 840 max = td->mtclass.maxcontacts; 841 fieldmax = r->field[0]->logical_maximum; 842 max = min(fieldmax, max); 843 if (r->field[0]->value[0] != max) { 844 r->field[0]->value[0] = max; 845 hid_hw_request(hdev, r, HID_REQ_SET_REPORT); 846 } 847 } 848 } 849 850 static void mt_post_parse_default_settings(struct mt_device *td) 851 { 852 __s32 quirks = td->mtclass.quirks; 853 854 /* unknown serial device needs special quirks */ 855 if (td->touches_by_report == 1) { 856 quirks |= MT_QUIRK_ALWAYS_VALID; 857 quirks &= ~MT_QUIRK_NOT_SEEN_MEANS_UP; 858 quirks &= ~MT_QUIRK_VALID_IS_INRANGE; 859 quirks &= ~MT_QUIRK_VALID_IS_CONFIDENCE; 860 quirks &= ~MT_QUIRK_CONTACT_CNT_ACCURATE; 861 } 862 863 td->mtclass.quirks = quirks; 864 } 865 866 static void mt_post_parse(struct mt_device *td) 867 { 868 struct mt_fields *f = td->fields; 869 struct mt_class *cls = &td->mtclass; 870 871 if (td->touches_by_report > 0) { 872 int field_count_per_touch = f->length / td->touches_by_report; 873 td->last_slot_field = f->usages[field_count_per_touch - 1]; 874 } 875 876 if (td->cc_index < 0) 877 cls->quirks &= ~MT_QUIRK_CONTACT_CNT_ACCURATE; 878 } 879 880 static void mt_input_configured(struct hid_device *hdev, struct hid_input *hi) 881 { 882 struct mt_device *td = hid_get_drvdata(hdev); 883 char *name; 884 const char *suffix = NULL; 885 struct hid_field *field = hi->report->field[0]; 886 887 if (hi->report->id == td->mt_report_id) 888 mt_touch_input_configured(hdev, hi); 889 890 /* 891 * some egalax touchscreens have "application == HID_DG_TOUCHSCREEN" 892 * for the stylus. Check this first, and then rely on the application 893 * field. 894 */ 895 if (hi->report->field[0]->physical == HID_DG_STYLUS) { 896 suffix = "Pen"; 897 /* force BTN_STYLUS to allow tablet matching in udev */ 898 __set_bit(BTN_STYLUS, hi->input->keybit); 899 } else { 900 switch (field->application) { 901 case HID_GD_KEYBOARD: 902 suffix = "Keyboard"; 903 break; 904 case HID_GD_KEYPAD: 905 suffix = "Keypad"; 906 break; 907 case HID_GD_MOUSE: 908 suffix = "Mouse"; 909 break; 910 case HID_DG_STYLUS: 911 suffix = "Pen"; 912 /* force BTN_STYLUS to allow tablet matching in udev */ 913 __set_bit(BTN_STYLUS, hi->input->keybit); 914 break; 915 case HID_DG_TOUCHSCREEN: 916 /* we do not set suffix = "Touchscreen" */ 917 break; 918 case HID_GD_SYSTEM_CONTROL: 919 suffix = "System Control"; 920 break; 921 case HID_CP_CONSUMER_CONTROL: 922 suffix = "Consumer Control"; 923 break; 924 default: 925 suffix = "UNKNOWN"; 926 break; 927 } 928 } 929 930 if (suffix) { 931 name = devm_kzalloc(&hi->input->dev, 932 strlen(hdev->name) + strlen(suffix) + 2, 933 GFP_KERNEL); 934 if (name) { 935 sprintf(name, "%s %s", hdev->name, suffix); 936 hi->input->name = name; 937 } 938 } 939 } 940 941 static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id) 942 { 943 int ret, i; 944 struct mt_device *td; 945 struct mt_class *mtclass = mt_classes; /* MT_CLS_DEFAULT */ 946 947 for (i = 0; mt_classes[i].name ; i++) { 948 if (id->driver_data == mt_classes[i].name) { 949 mtclass = &(mt_classes[i]); 950 break; 951 } 952 } 953 954 /* This allows the driver to correctly support devices 955 * that emit events over several HID messages. 956 */ 957 hdev->quirks |= HID_QUIRK_NO_INPUT_SYNC; 958 959 /* 960 * This allows the driver to handle different input sensors 961 * that emits events through different reports on the same HID 962 * device. 963 */ 964 hdev->quirks |= HID_QUIRK_MULTI_INPUT; 965 hdev->quirks |= HID_QUIRK_NO_EMPTY_INPUT; 966 967 /* 968 * Handle special quirks for Windows 8 certified devices. 969 */ 970 if (id->group == HID_GROUP_MULTITOUCH_WIN_8) 971 /* 972 * Some multitouch screens do not like to be polled for input 973 * reports. Fortunately, the Win8 spec says that all touches 974 * should be sent during each report, making the initialization 975 * of input reports unnecessary. 976 */ 977 hdev->quirks |= HID_QUIRK_NO_INIT_INPUT_REPORTS; 978 979 td = devm_kzalloc(&hdev->dev, sizeof(struct mt_device), GFP_KERNEL); 980 if (!td) { 981 dev_err(&hdev->dev, "cannot allocate multitouch data\n"); 982 return -ENOMEM; 983 } 984 td->mtclass = *mtclass; 985 td->inputmode = -1; 986 td->maxcontact_report_id = -1; 987 td->inputmode_value = MT_INPUTMODE_TOUCHSCREEN; 988 td->cc_index = -1; 989 td->mt_report_id = -1; 990 hid_set_drvdata(hdev, td); 991 992 td->fields = devm_kzalloc(&hdev->dev, sizeof(struct mt_fields), 993 GFP_KERNEL); 994 if (!td->fields) { 995 dev_err(&hdev->dev, "cannot allocate multitouch fields data\n"); 996 return -ENOMEM; 997 } 998 999 if (id->vendor == HID_ANY_ID && id->product == HID_ANY_ID) 1000 td->serial_maybe = true; 1001 1002 ret = hid_parse(hdev); 1003 if (ret != 0) 1004 return ret; 1005 1006 ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT); 1007 if (ret) 1008 return ret; 1009 1010 ret = sysfs_create_group(&hdev->dev.kobj, &mt_attribute_group); 1011 1012 mt_set_maxcontacts(hdev); 1013 mt_set_input_mode(hdev); 1014 1015 /* release .fields memory as it is not used anymore */ 1016 devm_kfree(&hdev->dev, td->fields); 1017 td->fields = NULL; 1018 1019 return 0; 1020 } 1021 1022 #ifdef CONFIG_PM 1023 static int mt_reset_resume(struct hid_device *hdev) 1024 { 1025 mt_set_maxcontacts(hdev); 1026 mt_set_input_mode(hdev); 1027 return 0; 1028 } 1029 1030 static int mt_resume(struct hid_device *hdev) 1031 { 1032 /* Some Elan legacy devices require SET_IDLE to be set on resume. 1033 * It should be safe to send it to other devices too. 1034 * Tested on 3M, Stantum, Cypress, Zytronic, eGalax, and Elan panels. */ 1035 1036 hid_hw_idle(hdev, 0, 0, HID_REQ_SET_IDLE); 1037 1038 return 0; 1039 } 1040 #endif 1041 1042 static void mt_remove(struct hid_device *hdev) 1043 { 1044 sysfs_remove_group(&hdev->dev.kobj, &mt_attribute_group); 1045 hid_hw_stop(hdev); 1046 } 1047 1048 /* 1049 * This list contains only: 1050 * - VID/PID of products not working with the default multitouch handling 1051 * - 2 generic rules. 1052 * So there is no point in adding here any device with MT_CLS_DEFAULT. 1053 */ 1054 static const struct hid_device_id mt_devices[] = { 1055 1056 /* 3M panels */ 1057 { .driver_data = MT_CLS_3M, 1058 MT_USB_DEVICE(USB_VENDOR_ID_3M, 1059 USB_DEVICE_ID_3M1968) }, 1060 { .driver_data = MT_CLS_3M, 1061 MT_USB_DEVICE(USB_VENDOR_ID_3M, 1062 USB_DEVICE_ID_3M2256) }, 1063 { .driver_data = MT_CLS_3M, 1064 MT_USB_DEVICE(USB_VENDOR_ID_3M, 1065 USB_DEVICE_ID_3M3266) }, 1066 1067 /* Anton devices */ 1068 { .driver_data = MT_CLS_EXPORT_ALL_INPUTS, 1069 MT_USB_DEVICE(USB_VENDOR_ID_ANTON, 1070 USB_DEVICE_ID_ANTON_TOUCH_PAD) }, 1071 1072 /* Atmel panels */ 1073 { .driver_data = MT_CLS_SERIAL, 1074 MT_USB_DEVICE(USB_VENDOR_ID_ATMEL, 1075 USB_DEVICE_ID_ATMEL_MXT_DIGITIZER) }, 1076 1077 /* Baanto multitouch devices */ 1078 { .driver_data = MT_CLS_NSMU, 1079 MT_USB_DEVICE(USB_VENDOR_ID_BAANTO, 1080 USB_DEVICE_ID_BAANTO_MT_190W2) }, 1081 1082 /* Cando panels */ 1083 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER, 1084 MT_USB_DEVICE(USB_VENDOR_ID_CANDO, 1085 USB_DEVICE_ID_CANDO_MULTI_TOUCH) }, 1086 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER, 1087 MT_USB_DEVICE(USB_VENDOR_ID_CANDO, 1088 USB_DEVICE_ID_CANDO_MULTI_TOUCH_15_6) }, 1089 1090 /* Chunghwa Telecom touch panels */ 1091 { .driver_data = MT_CLS_NSMU, 1092 MT_USB_DEVICE(USB_VENDOR_ID_CHUNGHWAT, 1093 USB_DEVICE_ID_CHUNGHWAT_MULTITOUCH) }, 1094 1095 /* CVTouch panels */ 1096 { .driver_data = MT_CLS_NSMU, 1097 MT_USB_DEVICE(USB_VENDOR_ID_CVTOUCH, 1098 USB_DEVICE_ID_CVTOUCH_SCREEN) }, 1099 1100 /* eGalax devices (resistive) */ 1101 { .driver_data = MT_CLS_EGALAX, 1102 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1103 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_480D) }, 1104 { .driver_data = MT_CLS_EGALAX, 1105 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1106 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_480E) }, 1107 1108 /* eGalax devices (capacitive) */ 1109 { .driver_data = MT_CLS_EGALAX_SERIAL, 1110 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1111 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7207) }, 1112 { .driver_data = MT_CLS_EGALAX, 1113 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1114 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_720C) }, 1115 { .driver_data = MT_CLS_EGALAX_SERIAL, 1116 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1117 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7224) }, 1118 { .driver_data = MT_CLS_EGALAX_SERIAL, 1119 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1120 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_722A) }, 1121 { .driver_data = MT_CLS_EGALAX_SERIAL, 1122 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1123 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_725E) }, 1124 { .driver_data = MT_CLS_EGALAX_SERIAL, 1125 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1126 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7262) }, 1127 { .driver_data = MT_CLS_EGALAX, 1128 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1129 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_726B) }, 1130 { .driver_data = MT_CLS_EGALAX, 1131 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1132 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72A1) }, 1133 { .driver_data = MT_CLS_EGALAX_SERIAL, 1134 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1135 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72AA) }, 1136 { .driver_data = MT_CLS_EGALAX, 1137 HID_USB_DEVICE(USB_VENDOR_ID_DWAV, 1138 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72C4) }, 1139 { .driver_data = MT_CLS_EGALAX, 1140 HID_USB_DEVICE(USB_VENDOR_ID_DWAV, 1141 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72D0) }, 1142 { .driver_data = MT_CLS_EGALAX, 1143 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1144 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72FA) }, 1145 { .driver_data = MT_CLS_EGALAX, 1146 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1147 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7302) }, 1148 { .driver_data = MT_CLS_EGALAX_SERIAL, 1149 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1150 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7349) }, 1151 { .driver_data = MT_CLS_EGALAX_SERIAL, 1152 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1153 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_73F7) }, 1154 { .driver_data = MT_CLS_EGALAX_SERIAL, 1155 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1156 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_A001) }, 1157 1158 /* Flatfrog Panels */ 1159 { .driver_data = MT_CLS_FLATFROG, 1160 MT_USB_DEVICE(USB_VENDOR_ID_FLATFROG, 1161 USB_DEVICE_ID_MULTITOUCH_3200) }, 1162 1163 /* FocalTech Panels */ 1164 { .driver_data = MT_CLS_SERIAL, 1165 MT_USB_DEVICE(USB_VENDOR_ID_CYGNAL, 1166 USB_DEVICE_ID_FOCALTECH_FTXXXX_MULTITOUCH) }, 1167 1168 /* GeneralTouch panel */ 1169 { .driver_data = MT_CLS_GENERALTOUCH_TWOFINGERS, 1170 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 1171 USB_DEVICE_ID_GENERAL_TOUCH_WIN7_TWOFINGERS) }, 1172 { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS, 1173 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 1174 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PWT_TENFINGERS) }, 1175 { .driver_data = MT_CLS_GENERALTOUCH_TWOFINGERS, 1176 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 1177 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_0101) }, 1178 { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS, 1179 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 1180 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_0102) }, 1181 { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS, 1182 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 1183 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_0106) }, 1184 { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS, 1185 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 1186 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_010A) }, 1187 { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS, 1188 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 1189 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_E100) }, 1190 1191 /* Gametel game controller */ 1192 { .driver_data = MT_CLS_NSMU, 1193 MT_BT_DEVICE(USB_VENDOR_ID_FRUCTEL, 1194 USB_DEVICE_ID_GAMETEL_MT_MODE) }, 1195 1196 /* GoodTouch panels */ 1197 { .driver_data = MT_CLS_NSMU, 1198 MT_USB_DEVICE(USB_VENDOR_ID_GOODTOUCH, 1199 USB_DEVICE_ID_GOODTOUCH_000f) }, 1200 1201 /* Hanvon panels */ 1202 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID, 1203 MT_USB_DEVICE(USB_VENDOR_ID_HANVON_ALT, 1204 USB_DEVICE_ID_HANVON_ALT_MULTITOUCH) }, 1205 1206 /* Ilitek dual touch panel */ 1207 { .driver_data = MT_CLS_NSMU, 1208 MT_USB_DEVICE(USB_VENDOR_ID_ILITEK, 1209 USB_DEVICE_ID_ILITEK_MULTITOUCH) }, 1210 1211 /* MosArt panels */ 1212 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE, 1213 MT_USB_DEVICE(USB_VENDOR_ID_ASUS, 1214 USB_DEVICE_ID_ASUS_T91MT)}, 1215 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE, 1216 MT_USB_DEVICE(USB_VENDOR_ID_ASUS, 1217 USB_DEVICE_ID_ASUSTEK_MULTITOUCH_YFO) }, 1218 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE, 1219 MT_USB_DEVICE(USB_VENDOR_ID_TURBOX, 1220 USB_DEVICE_ID_TURBOX_TOUCHSCREEN_MOSART) }, 1221 1222 /* Panasonic panels */ 1223 { .driver_data = MT_CLS_PANASONIC, 1224 MT_USB_DEVICE(USB_VENDOR_ID_PANASONIC, 1225 USB_DEVICE_ID_PANABOARD_UBT780) }, 1226 { .driver_data = MT_CLS_PANASONIC, 1227 MT_USB_DEVICE(USB_VENDOR_ID_PANASONIC, 1228 USB_DEVICE_ID_PANABOARD_UBT880) }, 1229 1230 /* Novatek Panel */ 1231 { .driver_data = MT_CLS_NSMU, 1232 MT_USB_DEVICE(USB_VENDOR_ID_NOVATEK, 1233 USB_DEVICE_ID_NOVATEK_PCT) }, 1234 1235 /* PixArt optical touch screen */ 1236 { .driver_data = MT_CLS_INRANGE_CONTACTNUMBER, 1237 MT_USB_DEVICE(USB_VENDOR_ID_PIXART, 1238 USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN) }, 1239 { .driver_data = MT_CLS_INRANGE_CONTACTNUMBER, 1240 MT_USB_DEVICE(USB_VENDOR_ID_PIXART, 1241 USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN1) }, 1242 { .driver_data = MT_CLS_INRANGE_CONTACTNUMBER, 1243 MT_USB_DEVICE(USB_VENDOR_ID_PIXART, 1244 USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN2) }, 1245 1246 /* PixCir-based panels */ 1247 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID, 1248 MT_USB_DEVICE(USB_VENDOR_ID_CANDO, 1249 USB_DEVICE_ID_CANDO_PIXCIR_MULTI_TOUCH) }, 1250 1251 /* Quanta-based panels */ 1252 { .driver_data = MT_CLS_CONFIDENCE_CONTACT_ID, 1253 MT_USB_DEVICE(USB_VENDOR_ID_QUANTA, 1254 USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3001) }, 1255 1256 /* Stantum panels */ 1257 { .driver_data = MT_CLS_CONFIDENCE, 1258 MT_USB_DEVICE(USB_VENDOR_ID_STANTUM_STM, 1259 USB_DEVICE_ID_MTP_STM)}, 1260 1261 /* TopSeed panels */ 1262 { .driver_data = MT_CLS_TOPSEED, 1263 MT_USB_DEVICE(USB_VENDOR_ID_TOPSEED2, 1264 USB_DEVICE_ID_TOPSEED2_PERIPAD_701) }, 1265 1266 /* Touch International panels */ 1267 { .driver_data = MT_CLS_NSMU, 1268 MT_USB_DEVICE(USB_VENDOR_ID_TOUCH_INTL, 1269 USB_DEVICE_ID_TOUCH_INTL_MULTI_TOUCH) }, 1270 1271 /* Unitec panels */ 1272 { .driver_data = MT_CLS_NSMU, 1273 MT_USB_DEVICE(USB_VENDOR_ID_UNITEC, 1274 USB_DEVICE_ID_UNITEC_USB_TOUCH_0709) }, 1275 { .driver_data = MT_CLS_NSMU, 1276 MT_USB_DEVICE(USB_VENDOR_ID_UNITEC, 1277 USB_DEVICE_ID_UNITEC_USB_TOUCH_0A19) }, 1278 1279 /* Wistron panels */ 1280 { .driver_data = MT_CLS_NSMU, 1281 MT_USB_DEVICE(USB_VENDOR_ID_WISTRON, 1282 USB_DEVICE_ID_WISTRON_OPTICAL_TOUCH) }, 1283 1284 /* XAT */ 1285 { .driver_data = MT_CLS_NSMU, 1286 MT_USB_DEVICE(USB_VENDOR_ID_XAT, 1287 USB_DEVICE_ID_XAT_CSR) }, 1288 1289 /* Xiroku */ 1290 { .driver_data = MT_CLS_NSMU, 1291 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 1292 USB_DEVICE_ID_XIROKU_SPX) }, 1293 { .driver_data = MT_CLS_NSMU, 1294 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 1295 USB_DEVICE_ID_XIROKU_MPX) }, 1296 { .driver_data = MT_CLS_NSMU, 1297 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 1298 USB_DEVICE_ID_XIROKU_CSR) }, 1299 { .driver_data = MT_CLS_NSMU, 1300 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 1301 USB_DEVICE_ID_XIROKU_SPX1) }, 1302 { .driver_data = MT_CLS_NSMU, 1303 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 1304 USB_DEVICE_ID_XIROKU_MPX1) }, 1305 { .driver_data = MT_CLS_NSMU, 1306 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 1307 USB_DEVICE_ID_XIROKU_CSR1) }, 1308 { .driver_data = MT_CLS_NSMU, 1309 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 1310 USB_DEVICE_ID_XIROKU_SPX2) }, 1311 { .driver_data = MT_CLS_NSMU, 1312 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 1313 USB_DEVICE_ID_XIROKU_MPX2) }, 1314 { .driver_data = MT_CLS_NSMU, 1315 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 1316 USB_DEVICE_ID_XIROKU_CSR2) }, 1317 1318 /* Generic MT device */ 1319 { HID_DEVICE(HID_BUS_ANY, HID_GROUP_MULTITOUCH, HID_ANY_ID, HID_ANY_ID) }, 1320 1321 /* Generic Win 8 certified MT device */ 1322 { .driver_data = MT_CLS_WIN_8, 1323 HID_DEVICE(HID_BUS_ANY, HID_GROUP_MULTITOUCH_WIN_8, 1324 HID_ANY_ID, HID_ANY_ID) }, 1325 { } 1326 }; 1327 MODULE_DEVICE_TABLE(hid, mt_devices); 1328 1329 static const struct hid_usage_id mt_grabbed_usages[] = { 1330 { HID_ANY_ID, HID_ANY_ID, HID_ANY_ID }, 1331 { HID_ANY_ID - 1, HID_ANY_ID - 1, HID_ANY_ID - 1} 1332 }; 1333 1334 static struct hid_driver mt_driver = { 1335 .name = "hid-multitouch", 1336 .id_table = mt_devices, 1337 .probe = mt_probe, 1338 .remove = mt_remove, 1339 .input_mapping = mt_input_mapping, 1340 .input_mapped = mt_input_mapped, 1341 .input_configured = mt_input_configured, 1342 .feature_mapping = mt_feature_mapping, 1343 .usage_table = mt_grabbed_usages, 1344 .event = mt_event, 1345 .report = mt_report, 1346 #ifdef CONFIG_PM 1347 .reset_resume = mt_reset_resume, 1348 .resume = mt_resume, 1349 #endif 1350 }; 1351 module_hid_driver(mt_driver); 1352