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 #define MT_QUIRK_FORCE_GET_FEATURE (1 << 13) 71 72 #define MT_INPUTMODE_TOUCHSCREEN 0x02 73 #define MT_INPUTMODE_TOUCHPAD 0x03 74 75 struct mt_slot { 76 __s32 x, y, cx, cy, p, w, h; 77 __s32 contactid; /* the device ContactID assigned to this slot */ 78 bool touch_state; /* is the touch valid? */ 79 bool inrange_state; /* is the finger in proximity of the sensor? */ 80 }; 81 82 struct mt_class { 83 __s32 name; /* MT_CLS */ 84 __s32 quirks; 85 __s32 sn_move; /* Signal/noise ratio for move events */ 86 __s32 sn_width; /* Signal/noise ratio for width events */ 87 __s32 sn_height; /* Signal/noise ratio for height events */ 88 __s32 sn_pressure; /* Signal/noise ratio for pressure events */ 89 __u8 maxcontacts; 90 bool is_indirect; /* true for touchpads */ 91 bool export_all_inputs; /* do not ignore mouse, keyboards, etc... */ 92 }; 93 94 struct mt_fields { 95 unsigned usages[HID_MAX_FIELDS]; 96 unsigned int length; 97 }; 98 99 struct mt_device { 100 struct mt_slot curdata; /* placeholder of incoming data */ 101 struct mt_class mtclass; /* our mt device class */ 102 struct mt_fields *fields; /* temporary placeholder for storing the 103 multitouch fields */ 104 int cc_index; /* contact count field index in the report */ 105 int cc_value_index; /* contact count value index in the field */ 106 unsigned last_slot_field; /* the last field of a slot */ 107 unsigned mt_report_id; /* the report ID of the multitouch device */ 108 __s16 inputmode; /* InputMode HID feature, -1 if non-existent */ 109 __s16 inputmode_index; /* InputMode HID feature index in the report */ 110 __s16 maxcontact_report_id; /* Maximum Contact Number HID feature, 111 -1 if non-existent */ 112 __u8 inputmode_value; /* InputMode HID feature value */ 113 __u8 num_received; /* how many contacts we received */ 114 __u8 num_expected; /* expected last contact index */ 115 __u8 maxcontacts; 116 __u8 touches_by_report; /* how many touches are present in one report: 117 * 1 means we should use a serial protocol 118 * > 1 means hybrid (multitouch) protocol */ 119 bool serial_maybe; /* need to check for serial protocol */ 120 bool curvalid; /* is the current contact valid? */ 121 unsigned mt_flags; /* flags to pass to input-mt */ 122 }; 123 124 static void mt_post_parse_default_settings(struct mt_device *td); 125 static void mt_post_parse(struct mt_device *td); 126 127 /* classes of device behavior */ 128 #define MT_CLS_DEFAULT 0x0001 129 130 #define MT_CLS_SERIAL 0x0002 131 #define MT_CLS_CONFIDENCE 0x0003 132 #define MT_CLS_CONFIDENCE_CONTACT_ID 0x0004 133 #define MT_CLS_CONFIDENCE_MINUS_ONE 0x0005 134 #define MT_CLS_DUAL_INRANGE_CONTACTID 0x0006 135 #define MT_CLS_DUAL_INRANGE_CONTACTNUMBER 0x0007 136 /* reserved 0x0008 */ 137 #define MT_CLS_INRANGE_CONTACTNUMBER 0x0009 138 #define MT_CLS_NSMU 0x000a 139 /* reserved 0x0010 */ 140 /* reserved 0x0011 */ 141 #define MT_CLS_WIN_8 0x0012 142 #define MT_CLS_EXPORT_ALL_INPUTS 0x0013 143 144 /* vendor specific classes */ 145 #define MT_CLS_3M 0x0101 146 /* reserved 0x0102 */ 147 #define MT_CLS_EGALAX 0x0103 148 #define MT_CLS_EGALAX_SERIAL 0x0104 149 #define MT_CLS_TOPSEED 0x0105 150 #define MT_CLS_PANASONIC 0x0106 151 #define MT_CLS_FLATFROG 0x0107 152 #define MT_CLS_GENERALTOUCH_TWOFINGERS 0x0108 153 #define MT_CLS_GENERALTOUCH_PWT_TENFINGERS 0x0109 154 #define MT_CLS_VTL 0x0110 155 156 #define MT_DEFAULT_MAXCONTACT 10 157 #define MT_MAX_MAXCONTACT 250 158 159 #define MT_USB_DEVICE(v, p) HID_DEVICE(BUS_USB, HID_GROUP_MULTITOUCH, v, p) 160 #define MT_BT_DEVICE(v, p) HID_DEVICE(BUS_BLUETOOTH, HID_GROUP_MULTITOUCH, v, p) 161 162 /* 163 * these device-dependent functions determine what slot corresponds 164 * to a valid contact that was just read. 165 */ 166 167 static int cypress_compute_slot(struct mt_device *td) 168 { 169 if (td->curdata.contactid != 0 || td->num_received == 0) 170 return td->curdata.contactid; 171 else 172 return -1; 173 } 174 175 static struct mt_class mt_classes[] = { 176 { .name = MT_CLS_DEFAULT, 177 .quirks = MT_QUIRK_ALWAYS_VALID | 178 MT_QUIRK_CONTACT_CNT_ACCURATE }, 179 { .name = MT_CLS_NSMU, 180 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP }, 181 { .name = MT_CLS_SERIAL, 182 .quirks = MT_QUIRK_ALWAYS_VALID}, 183 { .name = MT_CLS_CONFIDENCE, 184 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE }, 185 { .name = MT_CLS_CONFIDENCE_CONTACT_ID, 186 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE | 187 MT_QUIRK_SLOT_IS_CONTACTID }, 188 { .name = MT_CLS_CONFIDENCE_MINUS_ONE, 189 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE | 190 MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE }, 191 { .name = MT_CLS_DUAL_INRANGE_CONTACTID, 192 .quirks = MT_QUIRK_VALID_IS_INRANGE | 193 MT_QUIRK_SLOT_IS_CONTACTID, 194 .maxcontacts = 2 }, 195 { .name = MT_CLS_DUAL_INRANGE_CONTACTNUMBER, 196 .quirks = MT_QUIRK_VALID_IS_INRANGE | 197 MT_QUIRK_SLOT_IS_CONTACTNUMBER, 198 .maxcontacts = 2 }, 199 { .name = MT_CLS_INRANGE_CONTACTNUMBER, 200 .quirks = MT_QUIRK_VALID_IS_INRANGE | 201 MT_QUIRK_SLOT_IS_CONTACTNUMBER }, 202 { .name = MT_CLS_WIN_8, 203 .quirks = MT_QUIRK_ALWAYS_VALID | 204 MT_QUIRK_IGNORE_DUPLICATES | 205 MT_QUIRK_HOVERING | 206 MT_QUIRK_CONTACT_CNT_ACCURATE }, 207 { .name = MT_CLS_EXPORT_ALL_INPUTS, 208 .quirks = MT_QUIRK_ALWAYS_VALID | 209 MT_QUIRK_CONTACT_CNT_ACCURATE, 210 .export_all_inputs = true }, 211 212 /* 213 * vendor specific classes 214 */ 215 { .name = MT_CLS_3M, 216 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE | 217 MT_QUIRK_SLOT_IS_CONTACTID, 218 .sn_move = 2048, 219 .sn_width = 128, 220 .sn_height = 128, 221 .maxcontacts = 60, 222 }, 223 { .name = MT_CLS_EGALAX, 224 .quirks = MT_QUIRK_SLOT_IS_CONTACTID | 225 MT_QUIRK_VALID_IS_INRANGE, 226 .sn_move = 4096, 227 .sn_pressure = 32, 228 }, 229 { .name = MT_CLS_EGALAX_SERIAL, 230 .quirks = MT_QUIRK_SLOT_IS_CONTACTID | 231 MT_QUIRK_ALWAYS_VALID, 232 .sn_move = 4096, 233 .sn_pressure = 32, 234 }, 235 { .name = MT_CLS_TOPSEED, 236 .quirks = MT_QUIRK_ALWAYS_VALID, 237 .is_indirect = true, 238 .maxcontacts = 2, 239 }, 240 { .name = MT_CLS_PANASONIC, 241 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP, 242 .maxcontacts = 4 }, 243 { .name = MT_CLS_GENERALTOUCH_TWOFINGERS, 244 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP | 245 MT_QUIRK_VALID_IS_INRANGE | 246 MT_QUIRK_SLOT_IS_CONTACTID, 247 .maxcontacts = 2 248 }, 249 { .name = MT_CLS_GENERALTOUCH_PWT_TENFINGERS, 250 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP | 251 MT_QUIRK_SLOT_IS_CONTACTID 252 }, 253 254 { .name = MT_CLS_FLATFROG, 255 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP | 256 MT_QUIRK_NO_AREA, 257 .sn_move = 2048, 258 .maxcontacts = 40, 259 }, 260 { .name = MT_CLS_VTL, 261 .quirks = MT_QUIRK_ALWAYS_VALID | 262 MT_QUIRK_CONTACT_CNT_ACCURATE | 263 MT_QUIRK_FORCE_GET_FEATURE, 264 }, 265 { } 266 }; 267 268 static ssize_t mt_show_quirks(struct device *dev, 269 struct device_attribute *attr, 270 char *buf) 271 { 272 struct hid_device *hdev = container_of(dev, struct hid_device, dev); 273 struct mt_device *td = hid_get_drvdata(hdev); 274 275 return sprintf(buf, "%u\n", td->mtclass.quirks); 276 } 277 278 static ssize_t mt_set_quirks(struct device *dev, 279 struct device_attribute *attr, 280 const char *buf, size_t count) 281 { 282 struct hid_device *hdev = container_of(dev, struct hid_device, dev); 283 struct mt_device *td = hid_get_drvdata(hdev); 284 285 unsigned long val; 286 287 if (kstrtoul(buf, 0, &val)) 288 return -EINVAL; 289 290 td->mtclass.quirks = val; 291 292 if (td->cc_index < 0) 293 td->mtclass.quirks &= ~MT_QUIRK_CONTACT_CNT_ACCURATE; 294 295 return count; 296 } 297 298 static DEVICE_ATTR(quirks, S_IWUSR | S_IRUGO, mt_show_quirks, mt_set_quirks); 299 300 static struct attribute *sysfs_attrs[] = { 301 &dev_attr_quirks.attr, 302 NULL 303 }; 304 305 static struct attribute_group mt_attribute_group = { 306 .attrs = sysfs_attrs 307 }; 308 309 static void mt_feature_mapping(struct hid_device *hdev, 310 struct hid_field *field, struct hid_usage *usage) 311 { 312 struct mt_device *td = hid_get_drvdata(hdev); 313 314 switch (usage->hid) { 315 case HID_DG_INPUTMODE: 316 /* Ignore if value index is out of bounds. */ 317 if (usage->usage_index >= field->report_count) { 318 dev_err(&hdev->dev, "HID_DG_INPUTMODE out of range\n"); 319 break; 320 } 321 322 td->inputmode = field->report->id; 323 td->inputmode_index = usage->usage_index; 324 325 break; 326 case HID_DG_CONTACTMAX: 327 td->maxcontact_report_id = field->report->id; 328 td->maxcontacts = field->value[0]; 329 if (!td->maxcontacts && 330 field->logical_maximum <= MT_MAX_MAXCONTACT) 331 td->maxcontacts = field->logical_maximum; 332 if (td->mtclass.maxcontacts) 333 /* check if the maxcontacts is given by the class */ 334 td->maxcontacts = td->mtclass.maxcontacts; 335 336 break; 337 } 338 } 339 340 static void set_abs(struct input_dev *input, unsigned int code, 341 struct hid_field *field, int snratio) 342 { 343 int fmin = field->logical_minimum; 344 int fmax = field->logical_maximum; 345 int fuzz = snratio ? (fmax - fmin) / snratio : 0; 346 input_set_abs_params(input, code, fmin, fmax, fuzz, 0); 347 input_abs_set_res(input, code, hidinput_calc_abs_res(field, code)); 348 } 349 350 static void mt_store_field(struct hid_usage *usage, struct mt_device *td, 351 struct hid_input *hi) 352 { 353 struct mt_fields *f = td->fields; 354 355 if (f->length >= HID_MAX_FIELDS) 356 return; 357 358 f->usages[f->length++] = usage->hid; 359 } 360 361 static int mt_touch_input_mapping(struct hid_device *hdev, struct hid_input *hi, 362 struct hid_field *field, struct hid_usage *usage, 363 unsigned long **bit, int *max) 364 { 365 struct mt_device *td = hid_get_drvdata(hdev); 366 struct mt_class *cls = &td->mtclass; 367 int code; 368 struct hid_usage *prev_usage = NULL; 369 370 if (field->application == HID_DG_TOUCHSCREEN) 371 td->mt_flags |= INPUT_MT_DIRECT; 372 373 /* 374 * Model touchscreens providing buttons as touchpads. 375 */ 376 if (field->application == HID_DG_TOUCHPAD || 377 (usage->hid & HID_USAGE_PAGE) == HID_UP_BUTTON) { 378 td->mt_flags |= INPUT_MT_POINTER; 379 td->inputmode_value = MT_INPUTMODE_TOUCHPAD; 380 } 381 382 if (usage->usage_index) 383 prev_usage = &field->usage[usage->usage_index - 1]; 384 385 switch (usage->hid & HID_USAGE_PAGE) { 386 387 case HID_UP_GENDESK: 388 switch (usage->hid) { 389 case HID_GD_X: 390 if (prev_usage && (prev_usage->hid == usage->hid)) { 391 hid_map_usage(hi, usage, bit, max, 392 EV_ABS, ABS_MT_TOOL_X); 393 set_abs(hi->input, ABS_MT_TOOL_X, field, 394 cls->sn_move); 395 } else { 396 hid_map_usage(hi, usage, bit, max, 397 EV_ABS, ABS_MT_POSITION_X); 398 set_abs(hi->input, ABS_MT_POSITION_X, field, 399 cls->sn_move); 400 } 401 402 mt_store_field(usage, td, hi); 403 return 1; 404 case HID_GD_Y: 405 if (prev_usage && (prev_usage->hid == usage->hid)) { 406 hid_map_usage(hi, usage, bit, max, 407 EV_ABS, ABS_MT_TOOL_Y); 408 set_abs(hi->input, ABS_MT_TOOL_Y, field, 409 cls->sn_move); 410 } else { 411 hid_map_usage(hi, usage, bit, max, 412 EV_ABS, ABS_MT_POSITION_Y); 413 set_abs(hi->input, ABS_MT_POSITION_Y, field, 414 cls->sn_move); 415 } 416 417 mt_store_field(usage, td, hi); 418 return 1; 419 } 420 return 0; 421 422 case HID_UP_DIGITIZER: 423 switch (usage->hid) { 424 case HID_DG_INRANGE: 425 if (cls->quirks & MT_QUIRK_HOVERING) { 426 hid_map_usage(hi, usage, bit, max, 427 EV_ABS, ABS_MT_DISTANCE); 428 input_set_abs_params(hi->input, 429 ABS_MT_DISTANCE, 0, 1, 0, 0); 430 } 431 mt_store_field(usage, td, hi); 432 return 1; 433 case HID_DG_CONFIDENCE: 434 mt_store_field(usage, td, hi); 435 return 1; 436 case HID_DG_TIPSWITCH: 437 hid_map_usage(hi, usage, bit, max, EV_KEY, BTN_TOUCH); 438 input_set_capability(hi->input, EV_KEY, BTN_TOUCH); 439 mt_store_field(usage, td, hi); 440 return 1; 441 case HID_DG_CONTACTID: 442 mt_store_field(usage, td, hi); 443 td->touches_by_report++; 444 td->mt_report_id = field->report->id; 445 return 1; 446 case HID_DG_WIDTH: 447 hid_map_usage(hi, usage, bit, max, 448 EV_ABS, ABS_MT_TOUCH_MAJOR); 449 if (!(cls->quirks & MT_QUIRK_NO_AREA)) 450 set_abs(hi->input, ABS_MT_TOUCH_MAJOR, field, 451 cls->sn_width); 452 mt_store_field(usage, td, hi); 453 return 1; 454 case HID_DG_HEIGHT: 455 hid_map_usage(hi, usage, bit, max, 456 EV_ABS, ABS_MT_TOUCH_MINOR); 457 if (!(cls->quirks & MT_QUIRK_NO_AREA)) { 458 set_abs(hi->input, ABS_MT_TOUCH_MINOR, field, 459 cls->sn_height); 460 input_set_abs_params(hi->input, 461 ABS_MT_ORIENTATION, 0, 1, 0, 0); 462 } 463 mt_store_field(usage, td, hi); 464 return 1; 465 case HID_DG_TIPPRESSURE: 466 hid_map_usage(hi, usage, bit, max, 467 EV_ABS, ABS_MT_PRESSURE); 468 set_abs(hi->input, ABS_MT_PRESSURE, field, 469 cls->sn_pressure); 470 mt_store_field(usage, td, hi); 471 return 1; 472 case HID_DG_CONTACTCOUNT: 473 /* Ignore if indexes are out of bounds. */ 474 if (field->index >= field->report->maxfield || 475 usage->usage_index >= field->report_count) 476 return 1; 477 td->cc_index = field->index; 478 td->cc_value_index = usage->usage_index; 479 return 1; 480 case HID_DG_CONTACTMAX: 481 /* we don't set td->last_slot_field as contactcount and 482 * contact max are global to the report */ 483 return -1; 484 case HID_DG_TOUCH: 485 /* Legacy devices use TIPSWITCH and not TOUCH. 486 * Let's just ignore this field. */ 487 return -1; 488 } 489 /* let hid-input decide for the others */ 490 return 0; 491 492 case HID_UP_BUTTON: 493 code = BTN_MOUSE + ((usage->hid - 1) & HID_USAGE); 494 hid_map_usage(hi, usage, bit, max, EV_KEY, code); 495 input_set_capability(hi->input, EV_KEY, code); 496 return 1; 497 498 case 0xff000000: 499 /* we do not want to map these: no input-oriented meaning */ 500 return -1; 501 } 502 503 return 0; 504 } 505 506 static int mt_touch_input_mapped(struct hid_device *hdev, struct hid_input *hi, 507 struct hid_field *field, struct hid_usage *usage, 508 unsigned long **bit, int *max) 509 { 510 if (usage->type == EV_KEY || usage->type == EV_ABS) 511 set_bit(usage->type, hi->input->evbit); 512 513 return -1; 514 } 515 516 static int mt_compute_slot(struct mt_device *td, struct input_dev *input) 517 { 518 __s32 quirks = td->mtclass.quirks; 519 520 if (quirks & MT_QUIRK_SLOT_IS_CONTACTID) 521 return td->curdata.contactid; 522 523 if (quirks & MT_QUIRK_CYPRESS) 524 return cypress_compute_slot(td); 525 526 if (quirks & MT_QUIRK_SLOT_IS_CONTACTNUMBER) 527 return td->num_received; 528 529 if (quirks & MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE) 530 return td->curdata.contactid - 1; 531 532 return input_mt_get_slot_by_key(input, td->curdata.contactid); 533 } 534 535 /* 536 * this function is called when a whole contact has been processed, 537 * so that it can assign it to a slot and store the data there 538 */ 539 static void mt_complete_slot(struct mt_device *td, struct input_dev *input) 540 { 541 if ((td->mtclass.quirks & MT_QUIRK_CONTACT_CNT_ACCURATE) && 542 td->num_received >= td->num_expected) 543 return; 544 545 if (td->curvalid || (td->mtclass.quirks & MT_QUIRK_ALWAYS_VALID)) { 546 int slotnum = mt_compute_slot(td, input); 547 struct mt_slot *s = &td->curdata; 548 struct input_mt *mt = input->mt; 549 550 if (slotnum < 0 || slotnum >= td->maxcontacts) 551 return; 552 553 if ((td->mtclass.quirks & MT_QUIRK_IGNORE_DUPLICATES) && mt) { 554 struct input_mt_slot *slot = &mt->slots[slotnum]; 555 if (input_mt_is_active(slot) && 556 input_mt_is_used(mt, slot)) 557 return; 558 } 559 560 input_mt_slot(input, slotnum); 561 input_mt_report_slot_state(input, MT_TOOL_FINGER, 562 s->touch_state || s->inrange_state); 563 if (s->touch_state || s->inrange_state) { 564 /* this finger is in proximity of the sensor */ 565 int wide = (s->w > s->h); 566 /* divided by two to match visual scale of touch */ 567 int major = max(s->w, s->h) >> 1; 568 int minor = min(s->w, s->h) >> 1; 569 570 input_event(input, EV_ABS, ABS_MT_POSITION_X, s->x); 571 input_event(input, EV_ABS, ABS_MT_POSITION_Y, s->y); 572 input_event(input, EV_ABS, ABS_MT_TOOL_X, s->cx); 573 input_event(input, EV_ABS, ABS_MT_TOOL_Y, s->cy); 574 input_event(input, EV_ABS, ABS_MT_DISTANCE, 575 !s->touch_state); 576 input_event(input, EV_ABS, ABS_MT_ORIENTATION, wide); 577 input_event(input, EV_ABS, ABS_MT_PRESSURE, s->p); 578 input_event(input, EV_ABS, ABS_MT_TOUCH_MAJOR, major); 579 input_event(input, EV_ABS, ABS_MT_TOUCH_MINOR, minor); 580 } 581 } 582 583 td->num_received++; 584 } 585 586 /* 587 * this function is called when a whole packet has been received and processed, 588 * so that it can decide what to send to the input layer. 589 */ 590 static void mt_sync_frame(struct mt_device *td, struct input_dev *input) 591 { 592 input_mt_sync_frame(input); 593 input_sync(input); 594 td->num_received = 0; 595 } 596 597 static int mt_touch_event(struct hid_device *hid, struct hid_field *field, 598 struct hid_usage *usage, __s32 value) 599 { 600 /* we will handle the hidinput part later, now remains hiddev */ 601 if (hid->claimed & HID_CLAIMED_HIDDEV && hid->hiddev_hid_event) 602 hid->hiddev_hid_event(hid, field, usage, value); 603 604 return 1; 605 } 606 607 static void mt_process_mt_event(struct hid_device *hid, struct hid_field *field, 608 struct hid_usage *usage, __s32 value) 609 { 610 struct mt_device *td = hid_get_drvdata(hid); 611 __s32 quirks = td->mtclass.quirks; 612 struct input_dev *input = field->hidinput->input; 613 614 if (hid->claimed & HID_CLAIMED_INPUT) { 615 switch (usage->hid) { 616 case HID_DG_INRANGE: 617 if (quirks & MT_QUIRK_VALID_IS_INRANGE) 618 td->curvalid = value; 619 if (quirks & MT_QUIRK_HOVERING) 620 td->curdata.inrange_state = value; 621 break; 622 case HID_DG_TIPSWITCH: 623 if (quirks & MT_QUIRK_NOT_SEEN_MEANS_UP) 624 td->curvalid = value; 625 td->curdata.touch_state = value; 626 break; 627 case HID_DG_CONFIDENCE: 628 if (quirks & MT_QUIRK_VALID_IS_CONFIDENCE) 629 td->curvalid = value; 630 break; 631 case HID_DG_CONTACTID: 632 td->curdata.contactid = value; 633 break; 634 case HID_DG_TIPPRESSURE: 635 td->curdata.p = value; 636 break; 637 case HID_GD_X: 638 if (usage->code == ABS_MT_TOOL_X) 639 td->curdata.cx = value; 640 else 641 td->curdata.x = value; 642 break; 643 case HID_GD_Y: 644 if (usage->code == ABS_MT_TOOL_Y) 645 td->curdata.cy = value; 646 else 647 td->curdata.y = value; 648 break; 649 case HID_DG_WIDTH: 650 td->curdata.w = value; 651 break; 652 case HID_DG_HEIGHT: 653 td->curdata.h = value; 654 break; 655 case HID_DG_CONTACTCOUNT: 656 break; 657 case HID_DG_TOUCH: 658 /* do nothing */ 659 break; 660 661 default: 662 if (usage->type) 663 input_event(input, usage->type, usage->code, 664 value); 665 return; 666 } 667 668 if (usage->usage_index + 1 == field->report_count) { 669 /* we only take into account the last report. */ 670 if (usage->hid == td->last_slot_field) 671 mt_complete_slot(td, field->hidinput->input); 672 } 673 674 } 675 } 676 677 static void mt_touch_report(struct hid_device *hid, struct hid_report *report) 678 { 679 struct mt_device *td = hid_get_drvdata(hid); 680 struct hid_field *field; 681 unsigned count; 682 int r, n; 683 684 /* 685 * Includes multi-packet support where subsequent 686 * packets are sent with zero contactcount. 687 */ 688 if (td->cc_index >= 0) { 689 struct hid_field *field = report->field[td->cc_index]; 690 int value = field->value[td->cc_value_index]; 691 if (value) 692 td->num_expected = value; 693 } 694 695 for (r = 0; r < report->maxfield; r++) { 696 field = report->field[r]; 697 count = field->report_count; 698 699 if (!(HID_MAIN_ITEM_VARIABLE & field->flags)) 700 continue; 701 702 for (n = 0; n < count; n++) 703 mt_process_mt_event(hid, field, &field->usage[n], 704 field->value[n]); 705 } 706 707 if (td->num_received >= td->num_expected) 708 mt_sync_frame(td, report->field[0]->hidinput->input); 709 } 710 711 static void mt_touch_input_configured(struct hid_device *hdev, 712 struct hid_input *hi) 713 { 714 struct mt_device *td = hid_get_drvdata(hdev); 715 struct mt_class *cls = &td->mtclass; 716 struct input_dev *input = hi->input; 717 718 if (!td->maxcontacts) 719 td->maxcontacts = MT_DEFAULT_MAXCONTACT; 720 721 mt_post_parse(td); 722 if (td->serial_maybe) 723 mt_post_parse_default_settings(td); 724 725 if (cls->is_indirect) 726 td->mt_flags |= INPUT_MT_POINTER; 727 728 if (cls->quirks & MT_QUIRK_NOT_SEEN_MEANS_UP) 729 td->mt_flags |= INPUT_MT_DROP_UNUSED; 730 731 input_mt_init_slots(input, td->maxcontacts, td->mt_flags); 732 733 td->mt_flags = 0; 734 } 735 736 static int mt_input_mapping(struct hid_device *hdev, struct hid_input *hi, 737 struct hid_field *field, struct hid_usage *usage, 738 unsigned long **bit, int *max) 739 { 740 struct mt_device *td = hid_get_drvdata(hdev); 741 742 /* 743 * If mtclass.export_all_inputs is not set, only map fields from 744 * TouchScreen or TouchPad collections. We need to ignore fields 745 * that belong to other collections such as Mouse that might have 746 * the same GenericDesktop usages. 747 */ 748 if (!td->mtclass.export_all_inputs && 749 field->application != HID_DG_TOUCHSCREEN && 750 field->application != HID_DG_PEN && 751 field->application != HID_DG_TOUCHPAD) 752 return -1; 753 754 /* 755 * some egalax touchscreens have "application == HID_DG_TOUCHSCREEN" 756 * for the stylus. 757 */ 758 if (field->physical == HID_DG_STYLUS) 759 return 0; 760 761 if (field->application == HID_DG_TOUCHSCREEN || 762 field->application == HID_DG_TOUCHPAD) 763 return mt_touch_input_mapping(hdev, hi, field, usage, bit, max); 764 765 /* let hid-core decide for the others */ 766 return 0; 767 } 768 769 static int mt_input_mapped(struct hid_device *hdev, struct hid_input *hi, 770 struct hid_field *field, struct hid_usage *usage, 771 unsigned long **bit, int *max) 772 { 773 /* 774 * some egalax touchscreens have "application == HID_DG_TOUCHSCREEN" 775 * for the stylus. 776 */ 777 if (field->physical == HID_DG_STYLUS) 778 return 0; 779 780 if (field->application == HID_DG_TOUCHSCREEN || 781 field->application == HID_DG_TOUCHPAD) 782 return mt_touch_input_mapped(hdev, hi, field, usage, bit, max); 783 784 /* let hid-core decide for the others */ 785 return 0; 786 } 787 788 static int mt_event(struct hid_device *hid, struct hid_field *field, 789 struct hid_usage *usage, __s32 value) 790 { 791 struct mt_device *td = hid_get_drvdata(hid); 792 793 if (field->report->id == td->mt_report_id) 794 return mt_touch_event(hid, field, usage, value); 795 796 return 0; 797 } 798 799 static void mt_report(struct hid_device *hid, struct hid_report *report) 800 { 801 struct mt_device *td = hid_get_drvdata(hid); 802 struct hid_field *field = report->field[0]; 803 804 if (!(hid->claimed & HID_CLAIMED_INPUT)) 805 return; 806 807 if (report->id == td->mt_report_id) 808 return mt_touch_report(hid, report); 809 810 if (field && field->hidinput && field->hidinput->input) 811 input_sync(field->hidinput->input); 812 } 813 814 static void mt_set_input_mode(struct hid_device *hdev) 815 { 816 struct mt_device *td = hid_get_drvdata(hdev); 817 struct hid_report *r; 818 struct hid_report_enum *re; 819 struct mt_class *cls = &td->mtclass; 820 char *buf; 821 int report_len; 822 823 if (td->inputmode < 0) 824 return; 825 826 re = &(hdev->report_enum[HID_FEATURE_REPORT]); 827 r = re->report_id_hash[td->inputmode]; 828 if (r) { 829 if (cls->quirks & MT_QUIRK_FORCE_GET_FEATURE) { 830 report_len = hid_report_len(r); 831 buf = hid_alloc_report_buf(r, GFP_KERNEL); 832 if (!buf) { 833 hid_err(hdev, "failed to allocate buffer for report\n"); 834 return; 835 } 836 hid_hw_raw_request(hdev, r->id, buf, report_len, 837 HID_FEATURE_REPORT, 838 HID_REQ_GET_REPORT); 839 kfree(buf); 840 } 841 r->field[0]->value[td->inputmode_index] = td->inputmode_value; 842 hid_hw_request(hdev, r, HID_REQ_SET_REPORT); 843 } 844 } 845 846 static void mt_set_maxcontacts(struct hid_device *hdev) 847 { 848 struct mt_device *td = hid_get_drvdata(hdev); 849 struct hid_report *r; 850 struct hid_report_enum *re; 851 int fieldmax, max; 852 853 if (td->maxcontact_report_id < 0) 854 return; 855 856 if (!td->mtclass.maxcontacts) 857 return; 858 859 re = &hdev->report_enum[HID_FEATURE_REPORT]; 860 r = re->report_id_hash[td->maxcontact_report_id]; 861 if (r) { 862 max = td->mtclass.maxcontacts; 863 fieldmax = r->field[0]->logical_maximum; 864 max = min(fieldmax, max); 865 if (r->field[0]->value[0] != max) { 866 r->field[0]->value[0] = max; 867 hid_hw_request(hdev, r, HID_REQ_SET_REPORT); 868 } 869 } 870 } 871 872 static void mt_post_parse_default_settings(struct mt_device *td) 873 { 874 __s32 quirks = td->mtclass.quirks; 875 876 /* unknown serial device needs special quirks */ 877 if (td->touches_by_report == 1) { 878 quirks |= MT_QUIRK_ALWAYS_VALID; 879 quirks &= ~MT_QUIRK_NOT_SEEN_MEANS_UP; 880 quirks &= ~MT_QUIRK_VALID_IS_INRANGE; 881 quirks &= ~MT_QUIRK_VALID_IS_CONFIDENCE; 882 quirks &= ~MT_QUIRK_CONTACT_CNT_ACCURATE; 883 } 884 885 td->mtclass.quirks = quirks; 886 } 887 888 static void mt_post_parse(struct mt_device *td) 889 { 890 struct mt_fields *f = td->fields; 891 struct mt_class *cls = &td->mtclass; 892 893 if (td->touches_by_report > 0) { 894 int field_count_per_touch = f->length / td->touches_by_report; 895 td->last_slot_field = f->usages[field_count_per_touch - 1]; 896 } 897 898 if (td->cc_index < 0) 899 cls->quirks &= ~MT_QUIRK_CONTACT_CNT_ACCURATE; 900 } 901 902 static void mt_input_configured(struct hid_device *hdev, struct hid_input *hi) 903 { 904 struct mt_device *td = hid_get_drvdata(hdev); 905 char *name; 906 const char *suffix = NULL; 907 struct hid_field *field = hi->report->field[0]; 908 909 if (hi->report->id == td->mt_report_id) 910 mt_touch_input_configured(hdev, hi); 911 912 /* 913 * some egalax touchscreens have "application == HID_DG_TOUCHSCREEN" 914 * for the stylus. Check this first, and then rely on the application 915 * field. 916 */ 917 if (hi->report->field[0]->physical == HID_DG_STYLUS) { 918 suffix = "Pen"; 919 /* force BTN_STYLUS to allow tablet matching in udev */ 920 __set_bit(BTN_STYLUS, hi->input->keybit); 921 } else { 922 switch (field->application) { 923 case HID_GD_KEYBOARD: 924 suffix = "Keyboard"; 925 break; 926 case HID_GD_KEYPAD: 927 suffix = "Keypad"; 928 break; 929 case HID_GD_MOUSE: 930 suffix = "Mouse"; 931 break; 932 case HID_DG_STYLUS: 933 suffix = "Pen"; 934 /* force BTN_STYLUS to allow tablet matching in udev */ 935 __set_bit(BTN_STYLUS, hi->input->keybit); 936 break; 937 case HID_DG_TOUCHSCREEN: 938 /* we do not set suffix = "Touchscreen" */ 939 break; 940 case HID_GD_SYSTEM_CONTROL: 941 suffix = "System Control"; 942 break; 943 case HID_CP_CONSUMER_CONTROL: 944 suffix = "Consumer Control"; 945 break; 946 default: 947 suffix = "UNKNOWN"; 948 break; 949 } 950 } 951 952 if (suffix) { 953 name = devm_kzalloc(&hi->input->dev, 954 strlen(hdev->name) + strlen(suffix) + 2, 955 GFP_KERNEL); 956 if (name) { 957 sprintf(name, "%s %s", hdev->name, suffix); 958 hi->input->name = name; 959 } 960 } 961 } 962 963 static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id) 964 { 965 int ret, i; 966 struct mt_device *td; 967 struct mt_class *mtclass = mt_classes; /* MT_CLS_DEFAULT */ 968 969 for (i = 0; mt_classes[i].name ; i++) { 970 if (id->driver_data == mt_classes[i].name) { 971 mtclass = &(mt_classes[i]); 972 break; 973 } 974 } 975 976 /* This allows the driver to correctly support devices 977 * that emit events over several HID messages. 978 */ 979 hdev->quirks |= HID_QUIRK_NO_INPUT_SYNC; 980 981 /* 982 * This allows the driver to handle different input sensors 983 * that emits events through different reports on the same HID 984 * device. 985 */ 986 hdev->quirks |= HID_QUIRK_MULTI_INPUT; 987 hdev->quirks |= HID_QUIRK_NO_EMPTY_INPUT; 988 989 /* 990 * Handle special quirks for Windows 8 certified devices. 991 */ 992 if (id->group == HID_GROUP_MULTITOUCH_WIN_8) 993 /* 994 * Some multitouch screens do not like to be polled for input 995 * reports. Fortunately, the Win8 spec says that all touches 996 * should be sent during each report, making the initialization 997 * of input reports unnecessary. 998 */ 999 hdev->quirks |= HID_QUIRK_NO_INIT_INPUT_REPORTS; 1000 1001 td = devm_kzalloc(&hdev->dev, sizeof(struct mt_device), GFP_KERNEL); 1002 if (!td) { 1003 dev_err(&hdev->dev, "cannot allocate multitouch data\n"); 1004 return -ENOMEM; 1005 } 1006 td->mtclass = *mtclass; 1007 td->inputmode = -1; 1008 td->maxcontact_report_id = -1; 1009 td->inputmode_value = MT_INPUTMODE_TOUCHSCREEN; 1010 td->cc_index = -1; 1011 td->mt_report_id = -1; 1012 hid_set_drvdata(hdev, td); 1013 1014 td->fields = devm_kzalloc(&hdev->dev, sizeof(struct mt_fields), 1015 GFP_KERNEL); 1016 if (!td->fields) { 1017 dev_err(&hdev->dev, "cannot allocate multitouch fields data\n"); 1018 return -ENOMEM; 1019 } 1020 1021 if (id->vendor == HID_ANY_ID && id->product == HID_ANY_ID) 1022 td->serial_maybe = true; 1023 1024 ret = hid_parse(hdev); 1025 if (ret != 0) 1026 return ret; 1027 1028 ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT); 1029 if (ret) 1030 return ret; 1031 1032 ret = sysfs_create_group(&hdev->dev.kobj, &mt_attribute_group); 1033 1034 mt_set_maxcontacts(hdev); 1035 mt_set_input_mode(hdev); 1036 1037 /* release .fields memory as it is not used anymore */ 1038 devm_kfree(&hdev->dev, td->fields); 1039 td->fields = NULL; 1040 1041 return 0; 1042 } 1043 1044 #ifdef CONFIG_PM 1045 static int mt_reset_resume(struct hid_device *hdev) 1046 { 1047 mt_set_maxcontacts(hdev); 1048 mt_set_input_mode(hdev); 1049 return 0; 1050 } 1051 1052 static int mt_resume(struct hid_device *hdev) 1053 { 1054 /* Some Elan legacy devices require SET_IDLE to be set on resume. 1055 * It should be safe to send it to other devices too. 1056 * Tested on 3M, Stantum, Cypress, Zytronic, eGalax, and Elan panels. */ 1057 1058 hid_hw_idle(hdev, 0, 0, HID_REQ_SET_IDLE); 1059 1060 return 0; 1061 } 1062 #endif 1063 1064 static void mt_remove(struct hid_device *hdev) 1065 { 1066 sysfs_remove_group(&hdev->dev.kobj, &mt_attribute_group); 1067 hid_hw_stop(hdev); 1068 } 1069 1070 /* 1071 * This list contains only: 1072 * - VID/PID of products not working with the default multitouch handling 1073 * - 2 generic rules. 1074 * So there is no point in adding here any device with MT_CLS_DEFAULT. 1075 */ 1076 static const struct hid_device_id mt_devices[] = { 1077 1078 /* 3M panels */ 1079 { .driver_data = MT_CLS_3M, 1080 MT_USB_DEVICE(USB_VENDOR_ID_3M, 1081 USB_DEVICE_ID_3M1968) }, 1082 { .driver_data = MT_CLS_3M, 1083 MT_USB_DEVICE(USB_VENDOR_ID_3M, 1084 USB_DEVICE_ID_3M2256) }, 1085 { .driver_data = MT_CLS_3M, 1086 MT_USB_DEVICE(USB_VENDOR_ID_3M, 1087 USB_DEVICE_ID_3M3266) }, 1088 1089 /* Anton devices */ 1090 { .driver_data = MT_CLS_EXPORT_ALL_INPUTS, 1091 MT_USB_DEVICE(USB_VENDOR_ID_ANTON, 1092 USB_DEVICE_ID_ANTON_TOUCH_PAD) }, 1093 1094 /* Atmel panels */ 1095 { .driver_data = MT_CLS_SERIAL, 1096 MT_USB_DEVICE(USB_VENDOR_ID_ATMEL, 1097 USB_DEVICE_ID_ATMEL_MXT_DIGITIZER) }, 1098 1099 /* Baanto multitouch devices */ 1100 { .driver_data = MT_CLS_NSMU, 1101 MT_USB_DEVICE(USB_VENDOR_ID_BAANTO, 1102 USB_DEVICE_ID_BAANTO_MT_190W2) }, 1103 1104 /* Cando panels */ 1105 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER, 1106 MT_USB_DEVICE(USB_VENDOR_ID_CANDO, 1107 USB_DEVICE_ID_CANDO_MULTI_TOUCH) }, 1108 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER, 1109 MT_USB_DEVICE(USB_VENDOR_ID_CANDO, 1110 USB_DEVICE_ID_CANDO_MULTI_TOUCH_15_6) }, 1111 1112 /* Chunghwa Telecom touch panels */ 1113 { .driver_data = MT_CLS_NSMU, 1114 MT_USB_DEVICE(USB_VENDOR_ID_CHUNGHWAT, 1115 USB_DEVICE_ID_CHUNGHWAT_MULTITOUCH) }, 1116 1117 /* CVTouch panels */ 1118 { .driver_data = MT_CLS_NSMU, 1119 MT_USB_DEVICE(USB_VENDOR_ID_CVTOUCH, 1120 USB_DEVICE_ID_CVTOUCH_SCREEN) }, 1121 1122 /* eGalax devices (resistive) */ 1123 { .driver_data = MT_CLS_EGALAX, 1124 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1125 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_480D) }, 1126 { .driver_data = MT_CLS_EGALAX, 1127 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1128 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_480E) }, 1129 1130 /* eGalax devices (capacitive) */ 1131 { .driver_data = MT_CLS_EGALAX_SERIAL, 1132 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1133 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7207) }, 1134 { .driver_data = MT_CLS_EGALAX, 1135 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1136 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_720C) }, 1137 { .driver_data = MT_CLS_EGALAX_SERIAL, 1138 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1139 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7224) }, 1140 { .driver_data = MT_CLS_EGALAX_SERIAL, 1141 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1142 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_722A) }, 1143 { .driver_data = MT_CLS_EGALAX_SERIAL, 1144 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1145 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_725E) }, 1146 { .driver_data = MT_CLS_EGALAX_SERIAL, 1147 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1148 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7262) }, 1149 { .driver_data = MT_CLS_EGALAX, 1150 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1151 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_726B) }, 1152 { .driver_data = MT_CLS_EGALAX, 1153 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1154 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72A1) }, 1155 { .driver_data = MT_CLS_EGALAX_SERIAL, 1156 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1157 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72AA) }, 1158 { .driver_data = MT_CLS_EGALAX, 1159 HID_USB_DEVICE(USB_VENDOR_ID_DWAV, 1160 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72C4) }, 1161 { .driver_data = MT_CLS_EGALAX, 1162 HID_USB_DEVICE(USB_VENDOR_ID_DWAV, 1163 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72D0) }, 1164 { .driver_data = MT_CLS_EGALAX, 1165 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1166 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72FA) }, 1167 { .driver_data = MT_CLS_EGALAX, 1168 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1169 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7302) }, 1170 { .driver_data = MT_CLS_EGALAX_SERIAL, 1171 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1172 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7349) }, 1173 { .driver_data = MT_CLS_EGALAX_SERIAL, 1174 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1175 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_73F7) }, 1176 { .driver_data = MT_CLS_EGALAX_SERIAL, 1177 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1178 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_A001) }, 1179 1180 /* Elitegroup panel */ 1181 { .driver_data = MT_CLS_SERIAL, 1182 MT_USB_DEVICE(USB_VENDOR_ID_ELITEGROUP, 1183 USB_DEVICE_ID_ELITEGROUP_05D8) }, 1184 1185 /* Flatfrog Panels */ 1186 { .driver_data = MT_CLS_FLATFROG, 1187 MT_USB_DEVICE(USB_VENDOR_ID_FLATFROG, 1188 USB_DEVICE_ID_MULTITOUCH_3200) }, 1189 1190 /* FocalTech Panels */ 1191 { .driver_data = MT_CLS_SERIAL, 1192 MT_USB_DEVICE(USB_VENDOR_ID_CYGNAL, 1193 USB_DEVICE_ID_FOCALTECH_FTXXXX_MULTITOUCH) }, 1194 1195 /* GeneralTouch panel */ 1196 { .driver_data = MT_CLS_GENERALTOUCH_TWOFINGERS, 1197 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 1198 USB_DEVICE_ID_GENERAL_TOUCH_WIN7_TWOFINGERS) }, 1199 { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS, 1200 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 1201 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PWT_TENFINGERS) }, 1202 { .driver_data = MT_CLS_GENERALTOUCH_TWOFINGERS, 1203 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 1204 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_0101) }, 1205 { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS, 1206 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 1207 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_0102) }, 1208 { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS, 1209 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 1210 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_0106) }, 1211 { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS, 1212 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 1213 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_010A) }, 1214 { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS, 1215 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 1216 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_E100) }, 1217 1218 /* Gametel game controller */ 1219 { .driver_data = MT_CLS_NSMU, 1220 MT_BT_DEVICE(USB_VENDOR_ID_FRUCTEL, 1221 USB_DEVICE_ID_GAMETEL_MT_MODE) }, 1222 1223 /* GoodTouch panels */ 1224 { .driver_data = MT_CLS_NSMU, 1225 MT_USB_DEVICE(USB_VENDOR_ID_GOODTOUCH, 1226 USB_DEVICE_ID_GOODTOUCH_000f) }, 1227 1228 /* Hanvon panels */ 1229 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID, 1230 MT_USB_DEVICE(USB_VENDOR_ID_HANVON_ALT, 1231 USB_DEVICE_ID_HANVON_ALT_MULTITOUCH) }, 1232 1233 /* Ilitek dual touch panel */ 1234 { .driver_data = MT_CLS_NSMU, 1235 MT_USB_DEVICE(USB_VENDOR_ID_ILITEK, 1236 USB_DEVICE_ID_ILITEK_MULTITOUCH) }, 1237 1238 /* MosArt panels */ 1239 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE, 1240 MT_USB_DEVICE(USB_VENDOR_ID_ASUS, 1241 USB_DEVICE_ID_ASUS_T91MT)}, 1242 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE, 1243 MT_USB_DEVICE(USB_VENDOR_ID_ASUS, 1244 USB_DEVICE_ID_ASUSTEK_MULTITOUCH_YFO) }, 1245 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE, 1246 MT_USB_DEVICE(USB_VENDOR_ID_TURBOX, 1247 USB_DEVICE_ID_TURBOX_TOUCHSCREEN_MOSART) }, 1248 1249 /* Panasonic panels */ 1250 { .driver_data = MT_CLS_PANASONIC, 1251 MT_USB_DEVICE(USB_VENDOR_ID_PANASONIC, 1252 USB_DEVICE_ID_PANABOARD_UBT780) }, 1253 { .driver_data = MT_CLS_PANASONIC, 1254 MT_USB_DEVICE(USB_VENDOR_ID_PANASONIC, 1255 USB_DEVICE_ID_PANABOARD_UBT880) }, 1256 1257 /* Novatek Panel */ 1258 { .driver_data = MT_CLS_NSMU, 1259 MT_USB_DEVICE(USB_VENDOR_ID_NOVATEK, 1260 USB_DEVICE_ID_NOVATEK_PCT) }, 1261 1262 /* PixArt optical touch screen */ 1263 { .driver_data = MT_CLS_INRANGE_CONTACTNUMBER, 1264 MT_USB_DEVICE(USB_VENDOR_ID_PIXART, 1265 USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN) }, 1266 { .driver_data = MT_CLS_INRANGE_CONTACTNUMBER, 1267 MT_USB_DEVICE(USB_VENDOR_ID_PIXART, 1268 USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN1) }, 1269 { .driver_data = MT_CLS_INRANGE_CONTACTNUMBER, 1270 MT_USB_DEVICE(USB_VENDOR_ID_PIXART, 1271 USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN2) }, 1272 1273 /* PixCir-based panels */ 1274 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID, 1275 MT_USB_DEVICE(USB_VENDOR_ID_CANDO, 1276 USB_DEVICE_ID_CANDO_PIXCIR_MULTI_TOUCH) }, 1277 1278 /* Quanta-based panels */ 1279 { .driver_data = MT_CLS_CONFIDENCE_CONTACT_ID, 1280 MT_USB_DEVICE(USB_VENDOR_ID_QUANTA, 1281 USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3001) }, 1282 1283 /* Stantum panels */ 1284 { .driver_data = MT_CLS_CONFIDENCE, 1285 MT_USB_DEVICE(USB_VENDOR_ID_STANTUM_STM, 1286 USB_DEVICE_ID_MTP_STM)}, 1287 1288 /* TopSeed panels */ 1289 { .driver_data = MT_CLS_TOPSEED, 1290 MT_USB_DEVICE(USB_VENDOR_ID_TOPSEED2, 1291 USB_DEVICE_ID_TOPSEED2_PERIPAD_701) }, 1292 1293 /* Touch International panels */ 1294 { .driver_data = MT_CLS_NSMU, 1295 MT_USB_DEVICE(USB_VENDOR_ID_TOUCH_INTL, 1296 USB_DEVICE_ID_TOUCH_INTL_MULTI_TOUCH) }, 1297 1298 /* Unitec panels */ 1299 { .driver_data = MT_CLS_NSMU, 1300 MT_USB_DEVICE(USB_VENDOR_ID_UNITEC, 1301 USB_DEVICE_ID_UNITEC_USB_TOUCH_0709) }, 1302 { .driver_data = MT_CLS_NSMU, 1303 MT_USB_DEVICE(USB_VENDOR_ID_UNITEC, 1304 USB_DEVICE_ID_UNITEC_USB_TOUCH_0A19) }, 1305 1306 /* VTL panels */ 1307 { .driver_data = MT_CLS_VTL, 1308 MT_USB_DEVICE(USB_VENDOR_ID_VTL, 1309 USB_DEVICE_ID_VTL_MULTITOUCH_FF3F) }, 1310 1311 /* Wistron panels */ 1312 { .driver_data = MT_CLS_NSMU, 1313 MT_USB_DEVICE(USB_VENDOR_ID_WISTRON, 1314 USB_DEVICE_ID_WISTRON_OPTICAL_TOUCH) }, 1315 1316 /* XAT */ 1317 { .driver_data = MT_CLS_NSMU, 1318 MT_USB_DEVICE(USB_VENDOR_ID_XAT, 1319 USB_DEVICE_ID_XAT_CSR) }, 1320 1321 /* Xiroku */ 1322 { .driver_data = MT_CLS_NSMU, 1323 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 1324 USB_DEVICE_ID_XIROKU_SPX) }, 1325 { .driver_data = MT_CLS_NSMU, 1326 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 1327 USB_DEVICE_ID_XIROKU_MPX) }, 1328 { .driver_data = MT_CLS_NSMU, 1329 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 1330 USB_DEVICE_ID_XIROKU_CSR) }, 1331 { .driver_data = MT_CLS_NSMU, 1332 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 1333 USB_DEVICE_ID_XIROKU_SPX1) }, 1334 { .driver_data = MT_CLS_NSMU, 1335 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 1336 USB_DEVICE_ID_XIROKU_MPX1) }, 1337 { .driver_data = MT_CLS_NSMU, 1338 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 1339 USB_DEVICE_ID_XIROKU_CSR1) }, 1340 { .driver_data = MT_CLS_NSMU, 1341 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 1342 USB_DEVICE_ID_XIROKU_SPX2) }, 1343 { .driver_data = MT_CLS_NSMU, 1344 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 1345 USB_DEVICE_ID_XIROKU_MPX2) }, 1346 { .driver_data = MT_CLS_NSMU, 1347 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 1348 USB_DEVICE_ID_XIROKU_CSR2) }, 1349 1350 /* Generic MT device */ 1351 { HID_DEVICE(HID_BUS_ANY, HID_GROUP_MULTITOUCH, HID_ANY_ID, HID_ANY_ID) }, 1352 1353 /* Generic Win 8 certified MT device */ 1354 { .driver_data = MT_CLS_WIN_8, 1355 HID_DEVICE(HID_BUS_ANY, HID_GROUP_MULTITOUCH_WIN_8, 1356 HID_ANY_ID, HID_ANY_ID) }, 1357 { } 1358 }; 1359 MODULE_DEVICE_TABLE(hid, mt_devices); 1360 1361 static const struct hid_usage_id mt_grabbed_usages[] = { 1362 { HID_ANY_ID, HID_ANY_ID, HID_ANY_ID }, 1363 { HID_ANY_ID - 1, HID_ANY_ID - 1, HID_ANY_ID - 1} 1364 }; 1365 1366 static struct hid_driver mt_driver = { 1367 .name = "hid-multitouch", 1368 .id_table = mt_devices, 1369 .probe = mt_probe, 1370 .remove = mt_remove, 1371 .input_mapping = mt_input_mapping, 1372 .input_mapped = mt_input_mapped, 1373 .input_configured = mt_input_configured, 1374 .feature_mapping = mt_feature_mapping, 1375 .usage_table = mt_grabbed_usages, 1376 .event = mt_event, 1377 .report = mt_report, 1378 #ifdef CONFIG_PM 1379 .reset_resume = mt_reset_resume, 1380 .resume = mt_resume, 1381 #endif 1382 }; 1383 module_hid_driver(mt_driver); 1384