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/input/mt.h> 46 #include <linux/string.h> 47 48 49 MODULE_AUTHOR("Stephane Chatty <chatty@enac.fr>"); 50 MODULE_AUTHOR("Benjamin Tissoires <benjamin.tissoires@gmail.com>"); 51 MODULE_DESCRIPTION("HID multitouch panels"); 52 MODULE_LICENSE("GPL"); 53 54 #include "hid-ids.h" 55 56 /* quirks to control the device */ 57 #define MT_QUIRK_NOT_SEEN_MEANS_UP (1 << 0) 58 #define MT_QUIRK_SLOT_IS_CONTACTID (1 << 1) 59 #define MT_QUIRK_CYPRESS (1 << 2) 60 #define MT_QUIRK_SLOT_IS_CONTACTNUMBER (1 << 3) 61 #define MT_QUIRK_ALWAYS_VALID (1 << 4) 62 #define MT_QUIRK_VALID_IS_INRANGE (1 << 5) 63 #define MT_QUIRK_VALID_IS_CONFIDENCE (1 << 6) 64 #define MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE (1 << 8) 65 #define MT_QUIRK_NO_AREA (1 << 9) 66 #define MT_QUIRK_IGNORE_DUPLICATES (1 << 10) 67 #define MT_QUIRK_HOVERING (1 << 11) 68 #define MT_QUIRK_CONTACT_CNT_ACCURATE (1 << 12) 69 #define MT_QUIRK_FORCE_GET_FEATURE (1 << 13) 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 #define MT_CLS_VTL 0x0110 154 155 #define MT_DEFAULT_MAXCONTACT 10 156 #define MT_MAX_MAXCONTACT 250 157 158 #define MT_USB_DEVICE(v, p) HID_DEVICE(BUS_USB, HID_GROUP_MULTITOUCH, v, p) 159 #define MT_BT_DEVICE(v, p) HID_DEVICE(BUS_BLUETOOTH, HID_GROUP_MULTITOUCH, v, p) 160 161 /* 162 * these device-dependent functions determine what slot corresponds 163 * to a valid contact that was just read. 164 */ 165 166 static int cypress_compute_slot(struct mt_device *td) 167 { 168 if (td->curdata.contactid != 0 || td->num_received == 0) 169 return td->curdata.contactid; 170 else 171 return -1; 172 } 173 174 static struct mt_class mt_classes[] = { 175 { .name = MT_CLS_DEFAULT, 176 .quirks = MT_QUIRK_ALWAYS_VALID | 177 MT_QUIRK_CONTACT_CNT_ACCURATE }, 178 { .name = MT_CLS_NSMU, 179 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP }, 180 { .name = MT_CLS_SERIAL, 181 .quirks = MT_QUIRK_ALWAYS_VALID}, 182 { .name = MT_CLS_CONFIDENCE, 183 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE }, 184 { .name = MT_CLS_CONFIDENCE_CONTACT_ID, 185 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE | 186 MT_QUIRK_SLOT_IS_CONTACTID }, 187 { .name = MT_CLS_CONFIDENCE_MINUS_ONE, 188 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE | 189 MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE }, 190 { .name = MT_CLS_DUAL_INRANGE_CONTACTID, 191 .quirks = MT_QUIRK_VALID_IS_INRANGE | 192 MT_QUIRK_SLOT_IS_CONTACTID, 193 .maxcontacts = 2 }, 194 { .name = MT_CLS_DUAL_INRANGE_CONTACTNUMBER, 195 .quirks = MT_QUIRK_VALID_IS_INRANGE | 196 MT_QUIRK_SLOT_IS_CONTACTNUMBER, 197 .maxcontacts = 2 }, 198 { .name = MT_CLS_INRANGE_CONTACTNUMBER, 199 .quirks = MT_QUIRK_VALID_IS_INRANGE | 200 MT_QUIRK_SLOT_IS_CONTACTNUMBER }, 201 { .name = MT_CLS_WIN_8, 202 .quirks = MT_QUIRK_ALWAYS_VALID | 203 MT_QUIRK_IGNORE_DUPLICATES | 204 MT_QUIRK_HOVERING | 205 MT_QUIRK_CONTACT_CNT_ACCURATE }, 206 { .name = MT_CLS_EXPORT_ALL_INPUTS, 207 .quirks = MT_QUIRK_ALWAYS_VALID | 208 MT_QUIRK_CONTACT_CNT_ACCURATE, 209 .export_all_inputs = true }, 210 211 /* 212 * vendor specific classes 213 */ 214 { .name = MT_CLS_3M, 215 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE | 216 MT_QUIRK_SLOT_IS_CONTACTID, 217 .sn_move = 2048, 218 .sn_width = 128, 219 .sn_height = 128, 220 .maxcontacts = 60, 221 }, 222 { .name = MT_CLS_EGALAX, 223 .quirks = MT_QUIRK_SLOT_IS_CONTACTID | 224 MT_QUIRK_VALID_IS_INRANGE, 225 .sn_move = 4096, 226 .sn_pressure = 32, 227 }, 228 { .name = MT_CLS_EGALAX_SERIAL, 229 .quirks = MT_QUIRK_SLOT_IS_CONTACTID | 230 MT_QUIRK_ALWAYS_VALID, 231 .sn_move = 4096, 232 .sn_pressure = 32, 233 }, 234 { .name = MT_CLS_TOPSEED, 235 .quirks = MT_QUIRK_ALWAYS_VALID, 236 .is_indirect = true, 237 .maxcontacts = 2, 238 }, 239 { .name = MT_CLS_PANASONIC, 240 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP, 241 .maxcontacts = 4 }, 242 { .name = MT_CLS_GENERALTOUCH_TWOFINGERS, 243 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP | 244 MT_QUIRK_VALID_IS_INRANGE | 245 MT_QUIRK_SLOT_IS_CONTACTID, 246 .maxcontacts = 2 247 }, 248 { .name = MT_CLS_GENERALTOUCH_PWT_TENFINGERS, 249 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP | 250 MT_QUIRK_SLOT_IS_CONTACTID 251 }, 252 253 { .name = MT_CLS_FLATFROG, 254 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP | 255 MT_QUIRK_NO_AREA, 256 .sn_move = 2048, 257 .maxcontacts = 40, 258 }, 259 { .name = MT_CLS_VTL, 260 .quirks = MT_QUIRK_ALWAYS_VALID | 261 MT_QUIRK_CONTACT_CNT_ACCURATE | 262 MT_QUIRK_FORCE_GET_FEATURE, 263 }, 264 { } 265 }; 266 267 static ssize_t mt_show_quirks(struct device *dev, 268 struct device_attribute *attr, 269 char *buf) 270 { 271 struct hid_device *hdev = container_of(dev, struct hid_device, dev); 272 struct mt_device *td = hid_get_drvdata(hdev); 273 274 return sprintf(buf, "%u\n", td->mtclass.quirks); 275 } 276 277 static ssize_t mt_set_quirks(struct device *dev, 278 struct device_attribute *attr, 279 const char *buf, size_t count) 280 { 281 struct hid_device *hdev = container_of(dev, struct hid_device, dev); 282 struct mt_device *td = hid_get_drvdata(hdev); 283 284 unsigned long val; 285 286 if (kstrtoul(buf, 0, &val)) 287 return -EINVAL; 288 289 td->mtclass.quirks = val; 290 291 if (td->cc_index < 0) 292 td->mtclass.quirks &= ~MT_QUIRK_CONTACT_CNT_ACCURATE; 293 294 return count; 295 } 296 297 static DEVICE_ATTR(quirks, S_IWUSR | S_IRUGO, mt_show_quirks, mt_set_quirks); 298 299 static struct attribute *sysfs_attrs[] = { 300 &dev_attr_quirks.attr, 301 NULL 302 }; 303 304 static struct attribute_group mt_attribute_group = { 305 .attrs = sysfs_attrs 306 }; 307 308 static void mt_feature_mapping(struct hid_device *hdev, 309 struct hid_field *field, struct hid_usage *usage) 310 { 311 struct mt_device *td = hid_get_drvdata(hdev); 312 313 switch (usage->hid) { 314 case HID_DG_INPUTMODE: 315 /* Ignore if value index is out of bounds. */ 316 if (usage->usage_index >= field->report_count) { 317 dev_err(&hdev->dev, "HID_DG_INPUTMODE out of range\n"); 318 break; 319 } 320 321 td->inputmode = field->report->id; 322 td->inputmode_index = usage->usage_index; 323 324 break; 325 case HID_DG_CONTACTMAX: 326 td->maxcontact_report_id = field->report->id; 327 td->maxcontacts = field->value[0]; 328 if (!td->maxcontacts && 329 field->logical_maximum <= MT_MAX_MAXCONTACT) 330 td->maxcontacts = field->logical_maximum; 331 if (td->mtclass.maxcontacts) 332 /* check if the maxcontacts is given by the class */ 333 td->maxcontacts = td->mtclass.maxcontacts; 334 335 break; 336 } 337 } 338 339 static void set_abs(struct input_dev *input, unsigned int code, 340 struct hid_field *field, int snratio) 341 { 342 int fmin = field->logical_minimum; 343 int fmax = field->logical_maximum; 344 int fuzz = snratio ? (fmax - fmin) / snratio : 0; 345 input_set_abs_params(input, code, fmin, fmax, fuzz, 0); 346 input_abs_set_res(input, code, hidinput_calc_abs_res(field, code)); 347 } 348 349 static void mt_store_field(struct hid_usage *usage, struct mt_device *td, 350 struct hid_input *hi) 351 { 352 struct mt_fields *f = td->fields; 353 354 if (f->length >= HID_MAX_FIELDS) 355 return; 356 357 f->usages[f->length++] = usage->hid; 358 } 359 360 static int mt_touch_input_mapping(struct hid_device *hdev, struct hid_input *hi, 361 struct hid_field *field, struct hid_usage *usage, 362 unsigned long **bit, int *max) 363 { 364 struct mt_device *td = hid_get_drvdata(hdev); 365 struct mt_class *cls = &td->mtclass; 366 int code; 367 struct hid_usage *prev_usage = NULL; 368 369 if (field->application == HID_DG_TOUCHSCREEN) 370 td->mt_flags |= INPUT_MT_DIRECT; 371 372 /* 373 * Model touchscreens providing buttons as touchpads. 374 */ 375 if (field->application == HID_DG_TOUCHPAD || 376 (usage->hid & HID_USAGE_PAGE) == HID_UP_BUTTON) { 377 td->mt_flags |= INPUT_MT_POINTER; 378 td->inputmode_value = MT_INPUTMODE_TOUCHPAD; 379 } 380 381 if (usage->usage_index) 382 prev_usage = &field->usage[usage->usage_index - 1]; 383 384 switch (usage->hid & HID_USAGE_PAGE) { 385 386 case HID_UP_GENDESK: 387 switch (usage->hid) { 388 case HID_GD_X: 389 if (prev_usage && (prev_usage->hid == usage->hid)) { 390 hid_map_usage(hi, usage, bit, max, 391 EV_ABS, ABS_MT_TOOL_X); 392 set_abs(hi->input, ABS_MT_TOOL_X, field, 393 cls->sn_move); 394 } else { 395 hid_map_usage(hi, usage, bit, max, 396 EV_ABS, ABS_MT_POSITION_X); 397 set_abs(hi->input, ABS_MT_POSITION_X, field, 398 cls->sn_move); 399 } 400 401 mt_store_field(usage, td, hi); 402 return 1; 403 case HID_GD_Y: 404 if (prev_usage && (prev_usage->hid == usage->hid)) { 405 hid_map_usage(hi, usage, bit, max, 406 EV_ABS, ABS_MT_TOOL_Y); 407 set_abs(hi->input, ABS_MT_TOOL_Y, field, 408 cls->sn_move); 409 } else { 410 hid_map_usage(hi, usage, bit, max, 411 EV_ABS, ABS_MT_POSITION_Y); 412 set_abs(hi->input, ABS_MT_POSITION_Y, field, 413 cls->sn_move); 414 } 415 416 mt_store_field(usage, td, hi); 417 return 1; 418 } 419 return 0; 420 421 case HID_UP_DIGITIZER: 422 switch (usage->hid) { 423 case HID_DG_INRANGE: 424 if (cls->quirks & MT_QUIRK_HOVERING) { 425 hid_map_usage(hi, usage, bit, max, 426 EV_ABS, ABS_MT_DISTANCE); 427 input_set_abs_params(hi->input, 428 ABS_MT_DISTANCE, 0, 1, 0, 0); 429 } 430 mt_store_field(usage, td, hi); 431 return 1; 432 case HID_DG_CONFIDENCE: 433 mt_store_field(usage, td, hi); 434 return 1; 435 case HID_DG_TIPSWITCH: 436 hid_map_usage(hi, usage, bit, max, EV_KEY, BTN_TOUCH); 437 input_set_capability(hi->input, EV_KEY, BTN_TOUCH); 438 mt_store_field(usage, td, hi); 439 return 1; 440 case HID_DG_CONTACTID: 441 mt_store_field(usage, td, hi); 442 td->touches_by_report++; 443 td->mt_report_id = field->report->id; 444 return 1; 445 case HID_DG_WIDTH: 446 hid_map_usage(hi, usage, bit, max, 447 EV_ABS, ABS_MT_TOUCH_MAJOR); 448 if (!(cls->quirks & MT_QUIRK_NO_AREA)) 449 set_abs(hi->input, ABS_MT_TOUCH_MAJOR, field, 450 cls->sn_width); 451 mt_store_field(usage, td, hi); 452 return 1; 453 case HID_DG_HEIGHT: 454 hid_map_usage(hi, usage, bit, max, 455 EV_ABS, ABS_MT_TOUCH_MINOR); 456 if (!(cls->quirks & MT_QUIRK_NO_AREA)) { 457 set_abs(hi->input, ABS_MT_TOUCH_MINOR, field, 458 cls->sn_height); 459 input_set_abs_params(hi->input, 460 ABS_MT_ORIENTATION, 0, 1, 0, 0); 461 } 462 mt_store_field(usage, td, hi); 463 return 1; 464 case HID_DG_TIPPRESSURE: 465 hid_map_usage(hi, usage, bit, max, 466 EV_ABS, ABS_MT_PRESSURE); 467 set_abs(hi->input, ABS_MT_PRESSURE, field, 468 cls->sn_pressure); 469 mt_store_field(usage, td, hi); 470 return 1; 471 case HID_DG_CONTACTCOUNT: 472 /* Ignore if indexes are out of bounds. */ 473 if (field->index >= field->report->maxfield || 474 usage->usage_index >= field->report_count) 475 return 1; 476 td->cc_index = field->index; 477 td->cc_value_index = usage->usage_index; 478 return 1; 479 case HID_DG_CONTACTMAX: 480 /* we don't set td->last_slot_field as contactcount and 481 * contact max are global to the report */ 482 return -1; 483 case HID_DG_TOUCH: 484 /* Legacy devices use TIPSWITCH and not TOUCH. 485 * Let's just ignore this field. */ 486 return -1; 487 } 488 /* let hid-input decide for the others */ 489 return 0; 490 491 case HID_UP_BUTTON: 492 code = BTN_MOUSE + ((usage->hid - 1) & HID_USAGE); 493 hid_map_usage(hi, usage, bit, max, EV_KEY, code); 494 input_set_capability(hi->input, EV_KEY, code); 495 return 1; 496 497 case 0xff000000: 498 /* we do not want to map these: no input-oriented meaning */ 499 return -1; 500 } 501 502 return 0; 503 } 504 505 static int mt_touch_input_mapped(struct hid_device *hdev, struct hid_input *hi, 506 struct hid_field *field, struct hid_usage *usage, 507 unsigned long **bit, int *max) 508 { 509 if (usage->type == EV_KEY || usage->type == EV_ABS) 510 set_bit(usage->type, hi->input->evbit); 511 512 return -1; 513 } 514 515 static int mt_compute_slot(struct mt_device *td, struct input_dev *input) 516 { 517 __s32 quirks = td->mtclass.quirks; 518 519 if (quirks & MT_QUIRK_SLOT_IS_CONTACTID) 520 return td->curdata.contactid; 521 522 if (quirks & MT_QUIRK_CYPRESS) 523 return cypress_compute_slot(td); 524 525 if (quirks & MT_QUIRK_SLOT_IS_CONTACTNUMBER) 526 return td->num_received; 527 528 if (quirks & MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE) 529 return td->curdata.contactid - 1; 530 531 return input_mt_get_slot_by_key(input, td->curdata.contactid); 532 } 533 534 /* 535 * this function is called when a whole contact has been processed, 536 * so that it can assign it to a slot and store the data there 537 */ 538 static void mt_complete_slot(struct mt_device *td, struct input_dev *input) 539 { 540 if ((td->mtclass.quirks & MT_QUIRK_CONTACT_CNT_ACCURATE) && 541 td->num_received >= td->num_expected) 542 return; 543 544 if (td->curvalid || (td->mtclass.quirks & MT_QUIRK_ALWAYS_VALID)) { 545 int slotnum = mt_compute_slot(td, input); 546 struct mt_slot *s = &td->curdata; 547 struct input_mt *mt = input->mt; 548 549 if (slotnum < 0 || slotnum >= td->maxcontacts) 550 return; 551 552 if ((td->mtclass.quirks & MT_QUIRK_IGNORE_DUPLICATES) && mt) { 553 struct input_mt_slot *slot = &mt->slots[slotnum]; 554 if (input_mt_is_active(slot) && 555 input_mt_is_used(mt, slot)) 556 return; 557 } 558 559 input_mt_slot(input, slotnum); 560 input_mt_report_slot_state(input, MT_TOOL_FINGER, 561 s->touch_state || s->inrange_state); 562 if (s->touch_state || s->inrange_state) { 563 /* this finger is in proximity of the sensor */ 564 int wide = (s->w > s->h); 565 /* divided by two to match visual scale of touch */ 566 int major = max(s->w, s->h) >> 1; 567 int minor = min(s->w, s->h) >> 1; 568 569 input_event(input, EV_ABS, ABS_MT_POSITION_X, s->x); 570 input_event(input, EV_ABS, ABS_MT_POSITION_Y, s->y); 571 input_event(input, EV_ABS, ABS_MT_TOOL_X, s->cx); 572 input_event(input, EV_ABS, ABS_MT_TOOL_Y, s->cy); 573 input_event(input, EV_ABS, ABS_MT_DISTANCE, 574 !s->touch_state); 575 input_event(input, EV_ABS, ABS_MT_ORIENTATION, wide); 576 input_event(input, EV_ABS, ABS_MT_PRESSURE, s->p); 577 input_event(input, EV_ABS, ABS_MT_TOUCH_MAJOR, major); 578 input_event(input, EV_ABS, ABS_MT_TOUCH_MINOR, minor); 579 } 580 } 581 582 td->num_received++; 583 } 584 585 /* 586 * this function is called when a whole packet has been received and processed, 587 * so that it can decide what to send to the input layer. 588 */ 589 static void mt_sync_frame(struct mt_device *td, struct input_dev *input) 590 { 591 input_mt_sync_frame(input); 592 input_sync(input); 593 td->num_received = 0; 594 } 595 596 static int mt_touch_event(struct hid_device *hid, struct hid_field *field, 597 struct hid_usage *usage, __s32 value) 598 { 599 /* we will handle the hidinput part later, now remains hiddev */ 600 if (hid->claimed & HID_CLAIMED_HIDDEV && hid->hiddev_hid_event) 601 hid->hiddev_hid_event(hid, field, usage, value); 602 603 return 1; 604 } 605 606 static void mt_process_mt_event(struct hid_device *hid, struct hid_field *field, 607 struct hid_usage *usage, __s32 value) 608 { 609 struct mt_device *td = hid_get_drvdata(hid); 610 __s32 quirks = td->mtclass.quirks; 611 struct input_dev *input = field->hidinput->input; 612 613 if (hid->claimed & HID_CLAIMED_INPUT) { 614 switch (usage->hid) { 615 case HID_DG_INRANGE: 616 if (quirks & MT_QUIRK_VALID_IS_INRANGE) 617 td->curvalid = value; 618 if (quirks & MT_QUIRK_HOVERING) 619 td->curdata.inrange_state = value; 620 break; 621 case HID_DG_TIPSWITCH: 622 if (quirks & MT_QUIRK_NOT_SEEN_MEANS_UP) 623 td->curvalid = value; 624 td->curdata.touch_state = value; 625 break; 626 case HID_DG_CONFIDENCE: 627 if (quirks & MT_QUIRK_VALID_IS_CONFIDENCE) 628 td->curvalid = value; 629 break; 630 case HID_DG_CONTACTID: 631 td->curdata.contactid = value; 632 break; 633 case HID_DG_TIPPRESSURE: 634 td->curdata.p = value; 635 break; 636 case HID_GD_X: 637 if (usage->code == ABS_MT_TOOL_X) 638 td->curdata.cx = value; 639 else 640 td->curdata.x = value; 641 break; 642 case HID_GD_Y: 643 if (usage->code == ABS_MT_TOOL_Y) 644 td->curdata.cy = value; 645 else 646 td->curdata.y = value; 647 break; 648 case HID_DG_WIDTH: 649 td->curdata.w = value; 650 break; 651 case HID_DG_HEIGHT: 652 td->curdata.h = value; 653 break; 654 case HID_DG_CONTACTCOUNT: 655 break; 656 case HID_DG_TOUCH: 657 /* do nothing */ 658 break; 659 660 default: 661 if (usage->type) 662 input_event(input, usage->type, usage->code, 663 value); 664 return; 665 } 666 667 if (usage->usage_index + 1 == field->report_count) { 668 /* we only take into account the last report. */ 669 if (usage->hid == td->last_slot_field) 670 mt_complete_slot(td, field->hidinput->input); 671 } 672 673 } 674 } 675 676 static void mt_touch_report(struct hid_device *hid, struct hid_report *report) 677 { 678 struct mt_device *td = hid_get_drvdata(hid); 679 struct hid_field *field; 680 unsigned count; 681 int r, n; 682 683 /* 684 * Includes multi-packet support where subsequent 685 * packets are sent with zero contactcount. 686 */ 687 if (td->cc_index >= 0) { 688 struct hid_field *field = report->field[td->cc_index]; 689 int value = field->value[td->cc_value_index]; 690 if (value) 691 td->num_expected = value; 692 } 693 694 for (r = 0; r < report->maxfield; r++) { 695 field = report->field[r]; 696 count = field->report_count; 697 698 if (!(HID_MAIN_ITEM_VARIABLE & field->flags)) 699 continue; 700 701 for (n = 0; n < count; n++) 702 mt_process_mt_event(hid, field, &field->usage[n], 703 field->value[n]); 704 } 705 706 if (td->num_received >= td->num_expected) 707 mt_sync_frame(td, report->field[0]->hidinput->input); 708 } 709 710 static void mt_touch_input_configured(struct hid_device *hdev, 711 struct hid_input *hi) 712 { 713 struct mt_device *td = hid_get_drvdata(hdev); 714 struct mt_class *cls = &td->mtclass; 715 struct input_dev *input = hi->input; 716 717 if (!td->maxcontacts) 718 td->maxcontacts = MT_DEFAULT_MAXCONTACT; 719 720 mt_post_parse(td); 721 if (td->serial_maybe) 722 mt_post_parse_default_settings(td); 723 724 if (cls->is_indirect) 725 td->mt_flags |= INPUT_MT_POINTER; 726 727 if (cls->quirks & MT_QUIRK_NOT_SEEN_MEANS_UP) 728 td->mt_flags |= INPUT_MT_DROP_UNUSED; 729 730 input_mt_init_slots(input, td->maxcontacts, td->mt_flags); 731 732 td->mt_flags = 0; 733 } 734 735 static int mt_input_mapping(struct hid_device *hdev, struct hid_input *hi, 736 struct hid_field *field, struct hid_usage *usage, 737 unsigned long **bit, int *max) 738 { 739 struct mt_device *td = hid_get_drvdata(hdev); 740 741 /* 742 * If mtclass.export_all_inputs is not set, only map fields from 743 * TouchScreen or TouchPad collections. We need to ignore fields 744 * that belong to other collections such as Mouse that might have 745 * the same GenericDesktop usages. 746 */ 747 if (!td->mtclass.export_all_inputs && 748 field->application != HID_DG_TOUCHSCREEN && 749 field->application != HID_DG_PEN && 750 field->application != HID_DG_TOUCHPAD) 751 return -1; 752 753 /* 754 * some egalax touchscreens have "application == HID_DG_TOUCHSCREEN" 755 * for the stylus. 756 */ 757 if (field->physical == HID_DG_STYLUS) 758 return 0; 759 760 if (field->application == HID_DG_TOUCHSCREEN || 761 field->application == HID_DG_TOUCHPAD) 762 return mt_touch_input_mapping(hdev, hi, field, usage, bit, max); 763 764 /* let hid-core decide for the others */ 765 return 0; 766 } 767 768 static int mt_input_mapped(struct hid_device *hdev, struct hid_input *hi, 769 struct hid_field *field, struct hid_usage *usage, 770 unsigned long **bit, int *max) 771 { 772 /* 773 * some egalax touchscreens have "application == HID_DG_TOUCHSCREEN" 774 * for the stylus. 775 */ 776 if (field->physical == HID_DG_STYLUS) 777 return 0; 778 779 if (field->application == HID_DG_TOUCHSCREEN || 780 field->application == HID_DG_TOUCHPAD) 781 return mt_touch_input_mapped(hdev, hi, field, usage, bit, max); 782 783 /* let hid-core decide for the others */ 784 return 0; 785 } 786 787 static int mt_event(struct hid_device *hid, struct hid_field *field, 788 struct hid_usage *usage, __s32 value) 789 { 790 struct mt_device *td = hid_get_drvdata(hid); 791 792 if (field->report->id == td->mt_report_id) 793 return mt_touch_event(hid, field, usage, value); 794 795 return 0; 796 } 797 798 static void mt_report(struct hid_device *hid, struct hid_report *report) 799 { 800 struct mt_device *td = hid_get_drvdata(hid); 801 struct hid_field *field = report->field[0]; 802 803 if (!(hid->claimed & HID_CLAIMED_INPUT)) 804 return; 805 806 if (report->id == td->mt_report_id) 807 return mt_touch_report(hid, report); 808 809 if (field && field->hidinput && field->hidinput->input) 810 input_sync(field->hidinput->input); 811 } 812 813 static void mt_set_input_mode(struct hid_device *hdev) 814 { 815 struct mt_device *td = hid_get_drvdata(hdev); 816 struct hid_report *r; 817 struct hid_report_enum *re; 818 struct mt_class *cls = &td->mtclass; 819 char *buf; 820 int report_len; 821 822 if (td->inputmode < 0) 823 return; 824 825 re = &(hdev->report_enum[HID_FEATURE_REPORT]); 826 r = re->report_id_hash[td->inputmode]; 827 if (r) { 828 if (cls->quirks & MT_QUIRK_FORCE_GET_FEATURE) { 829 report_len = hid_report_len(r); 830 buf = hid_alloc_report_buf(r, GFP_KERNEL); 831 if (!buf) { 832 hid_err(hdev, "failed to allocate buffer for report\n"); 833 return; 834 } 835 hid_hw_raw_request(hdev, r->id, buf, report_len, 836 HID_FEATURE_REPORT, 837 HID_REQ_GET_REPORT); 838 kfree(buf); 839 } 840 r->field[0]->value[td->inputmode_index] = td->inputmode_value; 841 hid_hw_request(hdev, r, HID_REQ_SET_REPORT); 842 } 843 } 844 845 static void mt_set_maxcontacts(struct hid_device *hdev) 846 { 847 struct mt_device *td = hid_get_drvdata(hdev); 848 struct hid_report *r; 849 struct hid_report_enum *re; 850 int fieldmax, max; 851 852 if (td->maxcontact_report_id < 0) 853 return; 854 855 if (!td->mtclass.maxcontacts) 856 return; 857 858 re = &hdev->report_enum[HID_FEATURE_REPORT]; 859 r = re->report_id_hash[td->maxcontact_report_id]; 860 if (r) { 861 max = td->mtclass.maxcontacts; 862 fieldmax = r->field[0]->logical_maximum; 863 max = min(fieldmax, max); 864 if (r->field[0]->value[0] != max) { 865 r->field[0]->value[0] = max; 866 hid_hw_request(hdev, r, HID_REQ_SET_REPORT); 867 } 868 } 869 } 870 871 static void mt_post_parse_default_settings(struct mt_device *td) 872 { 873 __s32 quirks = td->mtclass.quirks; 874 875 /* unknown serial device needs special quirks */ 876 if (td->touches_by_report == 1) { 877 quirks |= MT_QUIRK_ALWAYS_VALID; 878 quirks &= ~MT_QUIRK_NOT_SEEN_MEANS_UP; 879 quirks &= ~MT_QUIRK_VALID_IS_INRANGE; 880 quirks &= ~MT_QUIRK_VALID_IS_CONFIDENCE; 881 quirks &= ~MT_QUIRK_CONTACT_CNT_ACCURATE; 882 } 883 884 td->mtclass.quirks = quirks; 885 } 886 887 static void mt_post_parse(struct mt_device *td) 888 { 889 struct mt_fields *f = td->fields; 890 struct mt_class *cls = &td->mtclass; 891 892 if (td->touches_by_report > 0) { 893 int field_count_per_touch = f->length / td->touches_by_report; 894 td->last_slot_field = f->usages[field_count_per_touch - 1]; 895 } 896 897 if (td->cc_index < 0) 898 cls->quirks &= ~MT_QUIRK_CONTACT_CNT_ACCURATE; 899 } 900 901 static void mt_input_configured(struct hid_device *hdev, struct hid_input *hi) 902 { 903 struct mt_device *td = hid_get_drvdata(hdev); 904 char *name; 905 const char *suffix = NULL; 906 struct hid_field *field = hi->report->field[0]; 907 908 if (hi->report->id == td->mt_report_id) 909 mt_touch_input_configured(hdev, hi); 910 911 /* 912 * some egalax touchscreens have "application == HID_DG_TOUCHSCREEN" 913 * for the stylus. Check this first, and then rely on the application 914 * field. 915 */ 916 if (hi->report->field[0]->physical == HID_DG_STYLUS) { 917 suffix = "Pen"; 918 /* force BTN_STYLUS to allow tablet matching in udev */ 919 __set_bit(BTN_STYLUS, hi->input->keybit); 920 } else { 921 switch (field->application) { 922 case HID_GD_KEYBOARD: 923 suffix = "Keyboard"; 924 break; 925 case HID_GD_KEYPAD: 926 suffix = "Keypad"; 927 break; 928 case HID_GD_MOUSE: 929 suffix = "Mouse"; 930 break; 931 case HID_DG_STYLUS: 932 suffix = "Pen"; 933 /* force BTN_STYLUS to allow tablet matching in udev */ 934 __set_bit(BTN_STYLUS, hi->input->keybit); 935 break; 936 case HID_DG_TOUCHSCREEN: 937 /* we do not set suffix = "Touchscreen" */ 938 break; 939 case HID_GD_SYSTEM_CONTROL: 940 suffix = "System Control"; 941 break; 942 case HID_CP_CONSUMER_CONTROL: 943 suffix = "Consumer Control"; 944 break; 945 default: 946 suffix = "UNKNOWN"; 947 break; 948 } 949 } 950 951 if (suffix) { 952 name = devm_kzalloc(&hi->input->dev, 953 strlen(hdev->name) + strlen(suffix) + 2, 954 GFP_KERNEL); 955 if (name) { 956 sprintf(name, "%s %s", hdev->name, suffix); 957 hi->input->name = name; 958 } 959 } 960 } 961 962 static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id) 963 { 964 int ret, i; 965 struct mt_device *td; 966 struct mt_class *mtclass = mt_classes; /* MT_CLS_DEFAULT */ 967 968 for (i = 0; mt_classes[i].name ; i++) { 969 if (id->driver_data == mt_classes[i].name) { 970 mtclass = &(mt_classes[i]); 971 break; 972 } 973 } 974 975 /* This allows the driver to correctly support devices 976 * that emit events over several HID messages. 977 */ 978 hdev->quirks |= HID_QUIRK_NO_INPUT_SYNC; 979 980 /* 981 * This allows the driver to handle different input sensors 982 * that emits events through different reports on the same HID 983 * device. 984 */ 985 hdev->quirks |= HID_QUIRK_MULTI_INPUT; 986 hdev->quirks |= HID_QUIRK_NO_EMPTY_INPUT; 987 988 /* 989 * Handle special quirks for Windows 8 certified devices. 990 */ 991 if (id->group == HID_GROUP_MULTITOUCH_WIN_8) 992 /* 993 * Some multitouch screens do not like to be polled for input 994 * reports. Fortunately, the Win8 spec says that all touches 995 * should be sent during each report, making the initialization 996 * of input reports unnecessary. 997 */ 998 hdev->quirks |= HID_QUIRK_NO_INIT_INPUT_REPORTS; 999 1000 td = devm_kzalloc(&hdev->dev, sizeof(struct mt_device), GFP_KERNEL); 1001 if (!td) { 1002 dev_err(&hdev->dev, "cannot allocate multitouch data\n"); 1003 return -ENOMEM; 1004 } 1005 td->mtclass = *mtclass; 1006 td->inputmode = -1; 1007 td->maxcontact_report_id = -1; 1008 td->inputmode_value = MT_INPUTMODE_TOUCHSCREEN; 1009 td->cc_index = -1; 1010 td->mt_report_id = -1; 1011 hid_set_drvdata(hdev, td); 1012 1013 td->fields = devm_kzalloc(&hdev->dev, sizeof(struct mt_fields), 1014 GFP_KERNEL); 1015 if (!td->fields) { 1016 dev_err(&hdev->dev, "cannot allocate multitouch fields data\n"); 1017 return -ENOMEM; 1018 } 1019 1020 if (id->vendor == HID_ANY_ID && id->product == HID_ANY_ID) 1021 td->serial_maybe = true; 1022 1023 ret = hid_parse(hdev); 1024 if (ret != 0) 1025 return ret; 1026 1027 ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT); 1028 if (ret) 1029 return ret; 1030 1031 ret = sysfs_create_group(&hdev->dev.kobj, &mt_attribute_group); 1032 1033 mt_set_maxcontacts(hdev); 1034 mt_set_input_mode(hdev); 1035 1036 /* release .fields memory as it is not used anymore */ 1037 devm_kfree(&hdev->dev, td->fields); 1038 td->fields = NULL; 1039 1040 return 0; 1041 } 1042 1043 #ifdef CONFIG_PM 1044 static int mt_reset_resume(struct hid_device *hdev) 1045 { 1046 mt_set_maxcontacts(hdev); 1047 mt_set_input_mode(hdev); 1048 return 0; 1049 } 1050 1051 static int mt_resume(struct hid_device *hdev) 1052 { 1053 /* Some Elan legacy devices require SET_IDLE to be set on resume. 1054 * It should be safe to send it to other devices too. 1055 * Tested on 3M, Stantum, Cypress, Zytronic, eGalax, and Elan panels. */ 1056 1057 hid_hw_idle(hdev, 0, 0, HID_REQ_SET_IDLE); 1058 1059 return 0; 1060 } 1061 #endif 1062 1063 static void mt_remove(struct hid_device *hdev) 1064 { 1065 sysfs_remove_group(&hdev->dev.kobj, &mt_attribute_group); 1066 hid_hw_stop(hdev); 1067 } 1068 1069 /* 1070 * This list contains only: 1071 * - VID/PID of products not working with the default multitouch handling 1072 * - 2 generic rules. 1073 * So there is no point in adding here any device with MT_CLS_DEFAULT. 1074 */ 1075 static const struct hid_device_id mt_devices[] = { 1076 1077 /* 3M panels */ 1078 { .driver_data = MT_CLS_3M, 1079 MT_USB_DEVICE(USB_VENDOR_ID_3M, 1080 USB_DEVICE_ID_3M1968) }, 1081 { .driver_data = MT_CLS_3M, 1082 MT_USB_DEVICE(USB_VENDOR_ID_3M, 1083 USB_DEVICE_ID_3M2256) }, 1084 { .driver_data = MT_CLS_3M, 1085 MT_USB_DEVICE(USB_VENDOR_ID_3M, 1086 USB_DEVICE_ID_3M3266) }, 1087 1088 /* Anton devices */ 1089 { .driver_data = MT_CLS_EXPORT_ALL_INPUTS, 1090 MT_USB_DEVICE(USB_VENDOR_ID_ANTON, 1091 USB_DEVICE_ID_ANTON_TOUCH_PAD) }, 1092 1093 /* Atmel panels */ 1094 { .driver_data = MT_CLS_SERIAL, 1095 MT_USB_DEVICE(USB_VENDOR_ID_ATMEL, 1096 USB_DEVICE_ID_ATMEL_MXT_DIGITIZER) }, 1097 1098 /* Baanto multitouch devices */ 1099 { .driver_data = MT_CLS_NSMU, 1100 MT_USB_DEVICE(USB_VENDOR_ID_BAANTO, 1101 USB_DEVICE_ID_BAANTO_MT_190W2) }, 1102 1103 /* Cando panels */ 1104 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER, 1105 MT_USB_DEVICE(USB_VENDOR_ID_CANDO, 1106 USB_DEVICE_ID_CANDO_MULTI_TOUCH) }, 1107 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER, 1108 MT_USB_DEVICE(USB_VENDOR_ID_CANDO, 1109 USB_DEVICE_ID_CANDO_MULTI_TOUCH_15_6) }, 1110 1111 /* Chunghwa Telecom touch panels */ 1112 { .driver_data = MT_CLS_NSMU, 1113 MT_USB_DEVICE(USB_VENDOR_ID_CHUNGHWAT, 1114 USB_DEVICE_ID_CHUNGHWAT_MULTITOUCH) }, 1115 1116 /* CVTouch panels */ 1117 { .driver_data = MT_CLS_NSMU, 1118 MT_USB_DEVICE(USB_VENDOR_ID_CVTOUCH, 1119 USB_DEVICE_ID_CVTOUCH_SCREEN) }, 1120 1121 /* eGalax devices (resistive) */ 1122 { .driver_data = MT_CLS_EGALAX, 1123 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1124 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_480D) }, 1125 { .driver_data = MT_CLS_EGALAX, 1126 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1127 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_480E) }, 1128 1129 /* eGalax devices (capacitive) */ 1130 { .driver_data = MT_CLS_EGALAX_SERIAL, 1131 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1132 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7207) }, 1133 { .driver_data = MT_CLS_EGALAX, 1134 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1135 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_720C) }, 1136 { .driver_data = MT_CLS_EGALAX_SERIAL, 1137 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1138 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7224) }, 1139 { .driver_data = MT_CLS_EGALAX_SERIAL, 1140 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1141 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_722A) }, 1142 { .driver_data = MT_CLS_EGALAX_SERIAL, 1143 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1144 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_725E) }, 1145 { .driver_data = MT_CLS_EGALAX_SERIAL, 1146 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1147 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7262) }, 1148 { .driver_data = MT_CLS_EGALAX, 1149 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1150 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_726B) }, 1151 { .driver_data = MT_CLS_EGALAX, 1152 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1153 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72A1) }, 1154 { .driver_data = MT_CLS_EGALAX_SERIAL, 1155 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1156 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72AA) }, 1157 { .driver_data = MT_CLS_EGALAX, 1158 HID_USB_DEVICE(USB_VENDOR_ID_DWAV, 1159 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72C4) }, 1160 { .driver_data = MT_CLS_EGALAX, 1161 HID_USB_DEVICE(USB_VENDOR_ID_DWAV, 1162 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72D0) }, 1163 { .driver_data = MT_CLS_EGALAX, 1164 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1165 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72FA) }, 1166 { .driver_data = MT_CLS_EGALAX, 1167 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1168 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7302) }, 1169 { .driver_data = MT_CLS_EGALAX_SERIAL, 1170 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1171 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7349) }, 1172 { .driver_data = MT_CLS_EGALAX_SERIAL, 1173 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1174 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_73F7) }, 1175 { .driver_data = MT_CLS_EGALAX_SERIAL, 1176 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1177 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_A001) }, 1178 1179 /* Elitegroup panel */ 1180 { .driver_data = MT_CLS_SERIAL, 1181 MT_USB_DEVICE(USB_VENDOR_ID_ELITEGROUP, 1182 USB_DEVICE_ID_ELITEGROUP_05D8) }, 1183 1184 /* Flatfrog Panels */ 1185 { .driver_data = MT_CLS_FLATFROG, 1186 MT_USB_DEVICE(USB_VENDOR_ID_FLATFROG, 1187 USB_DEVICE_ID_MULTITOUCH_3200) }, 1188 1189 /* FocalTech Panels */ 1190 { .driver_data = MT_CLS_SERIAL, 1191 MT_USB_DEVICE(USB_VENDOR_ID_CYGNAL, 1192 USB_DEVICE_ID_FOCALTECH_FTXXXX_MULTITOUCH) }, 1193 1194 /* GeneralTouch panel */ 1195 { .driver_data = MT_CLS_GENERALTOUCH_TWOFINGERS, 1196 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 1197 USB_DEVICE_ID_GENERAL_TOUCH_WIN7_TWOFINGERS) }, 1198 { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS, 1199 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 1200 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PWT_TENFINGERS) }, 1201 { .driver_data = MT_CLS_GENERALTOUCH_TWOFINGERS, 1202 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 1203 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_0101) }, 1204 { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS, 1205 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 1206 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_0102) }, 1207 { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS, 1208 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 1209 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_0106) }, 1210 { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS, 1211 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 1212 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_010A) }, 1213 { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS, 1214 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 1215 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_E100) }, 1216 1217 /* Gametel game controller */ 1218 { .driver_data = MT_CLS_NSMU, 1219 MT_BT_DEVICE(USB_VENDOR_ID_FRUCTEL, 1220 USB_DEVICE_ID_GAMETEL_MT_MODE) }, 1221 1222 /* GoodTouch panels */ 1223 { .driver_data = MT_CLS_NSMU, 1224 MT_USB_DEVICE(USB_VENDOR_ID_GOODTOUCH, 1225 USB_DEVICE_ID_GOODTOUCH_000f) }, 1226 1227 /* Hanvon panels */ 1228 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID, 1229 MT_USB_DEVICE(USB_VENDOR_ID_HANVON_ALT, 1230 USB_DEVICE_ID_HANVON_ALT_MULTITOUCH) }, 1231 1232 /* Ilitek dual touch panel */ 1233 { .driver_data = MT_CLS_NSMU, 1234 MT_USB_DEVICE(USB_VENDOR_ID_ILITEK, 1235 USB_DEVICE_ID_ILITEK_MULTITOUCH) }, 1236 1237 /* MosArt panels */ 1238 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE, 1239 MT_USB_DEVICE(USB_VENDOR_ID_ASUS, 1240 USB_DEVICE_ID_ASUS_T91MT)}, 1241 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE, 1242 MT_USB_DEVICE(USB_VENDOR_ID_ASUS, 1243 USB_DEVICE_ID_ASUSTEK_MULTITOUCH_YFO) }, 1244 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE, 1245 MT_USB_DEVICE(USB_VENDOR_ID_TURBOX, 1246 USB_DEVICE_ID_TURBOX_TOUCHSCREEN_MOSART) }, 1247 1248 /* Panasonic panels */ 1249 { .driver_data = MT_CLS_PANASONIC, 1250 MT_USB_DEVICE(USB_VENDOR_ID_PANASONIC, 1251 USB_DEVICE_ID_PANABOARD_UBT780) }, 1252 { .driver_data = MT_CLS_PANASONIC, 1253 MT_USB_DEVICE(USB_VENDOR_ID_PANASONIC, 1254 USB_DEVICE_ID_PANABOARD_UBT880) }, 1255 1256 /* Novatek Panel */ 1257 { .driver_data = MT_CLS_NSMU, 1258 MT_USB_DEVICE(USB_VENDOR_ID_NOVATEK, 1259 USB_DEVICE_ID_NOVATEK_PCT) }, 1260 1261 /* PixArt optical touch screen */ 1262 { .driver_data = MT_CLS_INRANGE_CONTACTNUMBER, 1263 MT_USB_DEVICE(USB_VENDOR_ID_PIXART, 1264 USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN) }, 1265 { .driver_data = MT_CLS_INRANGE_CONTACTNUMBER, 1266 MT_USB_DEVICE(USB_VENDOR_ID_PIXART, 1267 USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN1) }, 1268 { .driver_data = MT_CLS_INRANGE_CONTACTNUMBER, 1269 MT_USB_DEVICE(USB_VENDOR_ID_PIXART, 1270 USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN2) }, 1271 1272 /* PixCir-based panels */ 1273 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID, 1274 MT_USB_DEVICE(USB_VENDOR_ID_CANDO, 1275 USB_DEVICE_ID_CANDO_PIXCIR_MULTI_TOUCH) }, 1276 1277 /* Quanta-based panels */ 1278 { .driver_data = MT_CLS_CONFIDENCE_CONTACT_ID, 1279 MT_USB_DEVICE(USB_VENDOR_ID_QUANTA, 1280 USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3001) }, 1281 1282 /* Stantum panels */ 1283 { .driver_data = MT_CLS_CONFIDENCE, 1284 MT_USB_DEVICE(USB_VENDOR_ID_STANTUM_STM, 1285 USB_DEVICE_ID_MTP_STM)}, 1286 1287 /* TopSeed panels */ 1288 { .driver_data = MT_CLS_TOPSEED, 1289 MT_USB_DEVICE(USB_VENDOR_ID_TOPSEED2, 1290 USB_DEVICE_ID_TOPSEED2_PERIPAD_701) }, 1291 1292 /* Touch International panels */ 1293 { .driver_data = MT_CLS_NSMU, 1294 MT_USB_DEVICE(USB_VENDOR_ID_TOUCH_INTL, 1295 USB_DEVICE_ID_TOUCH_INTL_MULTI_TOUCH) }, 1296 1297 /* Unitec panels */ 1298 { .driver_data = MT_CLS_NSMU, 1299 MT_USB_DEVICE(USB_VENDOR_ID_UNITEC, 1300 USB_DEVICE_ID_UNITEC_USB_TOUCH_0709) }, 1301 { .driver_data = MT_CLS_NSMU, 1302 MT_USB_DEVICE(USB_VENDOR_ID_UNITEC, 1303 USB_DEVICE_ID_UNITEC_USB_TOUCH_0A19) }, 1304 1305 /* VTL panels */ 1306 { .driver_data = MT_CLS_VTL, 1307 MT_USB_DEVICE(USB_VENDOR_ID_VTL, 1308 USB_DEVICE_ID_VTL_MULTITOUCH_FF3F) }, 1309 1310 /* Wistron panels */ 1311 { .driver_data = MT_CLS_NSMU, 1312 MT_USB_DEVICE(USB_VENDOR_ID_WISTRON, 1313 USB_DEVICE_ID_WISTRON_OPTICAL_TOUCH) }, 1314 1315 /* XAT */ 1316 { .driver_data = MT_CLS_NSMU, 1317 MT_USB_DEVICE(USB_VENDOR_ID_XAT, 1318 USB_DEVICE_ID_XAT_CSR) }, 1319 1320 /* Xiroku */ 1321 { .driver_data = MT_CLS_NSMU, 1322 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 1323 USB_DEVICE_ID_XIROKU_SPX) }, 1324 { .driver_data = MT_CLS_NSMU, 1325 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 1326 USB_DEVICE_ID_XIROKU_MPX) }, 1327 { .driver_data = MT_CLS_NSMU, 1328 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 1329 USB_DEVICE_ID_XIROKU_CSR) }, 1330 { .driver_data = MT_CLS_NSMU, 1331 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 1332 USB_DEVICE_ID_XIROKU_SPX1) }, 1333 { .driver_data = MT_CLS_NSMU, 1334 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 1335 USB_DEVICE_ID_XIROKU_MPX1) }, 1336 { .driver_data = MT_CLS_NSMU, 1337 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 1338 USB_DEVICE_ID_XIROKU_CSR1) }, 1339 { .driver_data = MT_CLS_NSMU, 1340 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 1341 USB_DEVICE_ID_XIROKU_SPX2) }, 1342 { .driver_data = MT_CLS_NSMU, 1343 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 1344 USB_DEVICE_ID_XIROKU_MPX2) }, 1345 { .driver_data = MT_CLS_NSMU, 1346 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 1347 USB_DEVICE_ID_XIROKU_CSR2) }, 1348 1349 /* Generic MT device */ 1350 { HID_DEVICE(HID_BUS_ANY, HID_GROUP_MULTITOUCH, HID_ANY_ID, HID_ANY_ID) }, 1351 1352 /* Generic Win 8 certified MT device */ 1353 { .driver_data = MT_CLS_WIN_8, 1354 HID_DEVICE(HID_BUS_ANY, HID_GROUP_MULTITOUCH_WIN_8, 1355 HID_ANY_ID, HID_ANY_ID) }, 1356 { } 1357 }; 1358 MODULE_DEVICE_TABLE(hid, mt_devices); 1359 1360 static const struct hid_usage_id mt_grabbed_usages[] = { 1361 { HID_ANY_ID, HID_ANY_ID, HID_ANY_ID }, 1362 { HID_ANY_ID - 1, HID_ANY_ID - 1, HID_ANY_ID - 1} 1363 }; 1364 1365 static struct hid_driver mt_driver = { 1366 .name = "hid-multitouch", 1367 .id_table = mt_devices, 1368 .probe = mt_probe, 1369 .remove = mt_remove, 1370 .input_mapping = mt_input_mapping, 1371 .input_mapped = mt_input_mapped, 1372 .input_configured = mt_input_configured, 1373 .feature_mapping = mt_feature_mapping, 1374 .usage_table = mt_grabbed_usages, 1375 .event = mt_event, 1376 .report = mt_report, 1377 #ifdef CONFIG_PM 1378 .reset_resume = mt_reset_resume, 1379 .resume = mt_resume, 1380 #endif 1381 }; 1382 module_hid_driver(mt_driver); 1383