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 #define MT_BUTTONTYPE_CLICKPAD 0 75 76 struct mt_slot { 77 __s32 x, y, cx, cy, p, w, h; 78 __s32 contactid; /* the device ContactID assigned to this slot */ 79 bool touch_state; /* is the touch valid? */ 80 bool inrange_state; /* is the finger in proximity of the sensor? */ 81 }; 82 83 struct mt_class { 84 __s32 name; /* MT_CLS */ 85 __s32 quirks; 86 __s32 sn_move; /* Signal/noise ratio for move events */ 87 __s32 sn_width; /* Signal/noise ratio for width events */ 88 __s32 sn_height; /* Signal/noise ratio for height events */ 89 __s32 sn_pressure; /* Signal/noise ratio for pressure events */ 90 __u8 maxcontacts; 91 bool is_indirect; /* true for touchpads */ 92 bool export_all_inputs; /* do not ignore mouse, keyboards, etc... */ 93 }; 94 95 struct mt_fields { 96 unsigned usages[HID_MAX_FIELDS]; 97 unsigned int length; 98 }; 99 100 struct mt_device { 101 struct mt_slot curdata; /* placeholder of incoming data */ 102 struct mt_class mtclass; /* our mt device class */ 103 struct mt_fields *fields; /* temporary placeholder for storing the 104 multitouch fields */ 105 int cc_index; /* contact count field index in the report */ 106 int cc_value_index; /* contact count value index in the field */ 107 unsigned last_slot_field; /* the last field of a slot */ 108 unsigned mt_report_id; /* the report ID of the multitouch device */ 109 __s16 inputmode; /* InputMode HID feature, -1 if non-existent */ 110 __s16 inputmode_index; /* InputMode HID feature index in the report */ 111 __s16 maxcontact_report_id; /* Maximum Contact Number HID feature, 112 -1 if non-existent */ 113 __u8 inputmode_value; /* InputMode HID feature value */ 114 __u8 num_received; /* how many contacts we received */ 115 __u8 num_expected; /* expected last contact index */ 116 __u8 maxcontacts; 117 __u8 touches_by_report; /* how many touches are present in one report: 118 * 1 means we should use a serial protocol 119 * > 1 means hybrid (multitouch) protocol */ 120 __u8 buttons_count; /* number of physical buttons per touchpad */ 121 bool is_buttonpad; /* is this device a button pad? */ 122 bool serial_maybe; /* need to check for serial protocol */ 123 bool curvalid; /* is the current contact valid? */ 124 unsigned mt_flags; /* flags to pass to input-mt */ 125 }; 126 127 static void mt_post_parse_default_settings(struct mt_device *td); 128 static void mt_post_parse(struct mt_device *td); 129 130 /* classes of device behavior */ 131 #define MT_CLS_DEFAULT 0x0001 132 133 #define MT_CLS_SERIAL 0x0002 134 #define MT_CLS_CONFIDENCE 0x0003 135 #define MT_CLS_CONFIDENCE_CONTACT_ID 0x0004 136 #define MT_CLS_CONFIDENCE_MINUS_ONE 0x0005 137 #define MT_CLS_DUAL_INRANGE_CONTACTID 0x0006 138 #define MT_CLS_DUAL_INRANGE_CONTACTNUMBER 0x0007 139 /* reserved 0x0008 */ 140 #define MT_CLS_INRANGE_CONTACTNUMBER 0x0009 141 #define MT_CLS_NSMU 0x000a 142 /* reserved 0x0010 */ 143 /* reserved 0x0011 */ 144 #define MT_CLS_WIN_8 0x0012 145 #define MT_CLS_EXPORT_ALL_INPUTS 0x0013 146 147 /* vendor specific classes */ 148 #define MT_CLS_3M 0x0101 149 /* reserved 0x0102 */ 150 #define MT_CLS_EGALAX 0x0103 151 #define MT_CLS_EGALAX_SERIAL 0x0104 152 #define MT_CLS_TOPSEED 0x0105 153 #define MT_CLS_PANASONIC 0x0106 154 #define MT_CLS_FLATFROG 0x0107 155 #define MT_CLS_GENERALTOUCH_TWOFINGERS 0x0108 156 #define MT_CLS_GENERALTOUCH_PWT_TENFINGERS 0x0109 157 #define MT_CLS_VTL 0x0110 158 159 #define MT_DEFAULT_MAXCONTACT 10 160 #define MT_MAX_MAXCONTACT 250 161 162 #define MT_USB_DEVICE(v, p) HID_DEVICE(BUS_USB, HID_GROUP_MULTITOUCH, v, p) 163 #define MT_BT_DEVICE(v, p) HID_DEVICE(BUS_BLUETOOTH, HID_GROUP_MULTITOUCH, v, p) 164 165 /* 166 * these device-dependent functions determine what slot corresponds 167 * to a valid contact that was just read. 168 */ 169 170 static int cypress_compute_slot(struct mt_device *td) 171 { 172 if (td->curdata.contactid != 0 || td->num_received == 0) 173 return td->curdata.contactid; 174 else 175 return -1; 176 } 177 178 static struct mt_class mt_classes[] = { 179 { .name = MT_CLS_DEFAULT, 180 .quirks = MT_QUIRK_ALWAYS_VALID | 181 MT_QUIRK_CONTACT_CNT_ACCURATE }, 182 { .name = MT_CLS_NSMU, 183 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP }, 184 { .name = MT_CLS_SERIAL, 185 .quirks = MT_QUIRK_ALWAYS_VALID}, 186 { .name = MT_CLS_CONFIDENCE, 187 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE }, 188 { .name = MT_CLS_CONFIDENCE_CONTACT_ID, 189 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE | 190 MT_QUIRK_SLOT_IS_CONTACTID }, 191 { .name = MT_CLS_CONFIDENCE_MINUS_ONE, 192 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE | 193 MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE }, 194 { .name = MT_CLS_DUAL_INRANGE_CONTACTID, 195 .quirks = MT_QUIRK_VALID_IS_INRANGE | 196 MT_QUIRK_SLOT_IS_CONTACTID, 197 .maxcontacts = 2 }, 198 { .name = MT_CLS_DUAL_INRANGE_CONTACTNUMBER, 199 .quirks = MT_QUIRK_VALID_IS_INRANGE | 200 MT_QUIRK_SLOT_IS_CONTACTNUMBER, 201 .maxcontacts = 2 }, 202 { .name = MT_CLS_INRANGE_CONTACTNUMBER, 203 .quirks = MT_QUIRK_VALID_IS_INRANGE | 204 MT_QUIRK_SLOT_IS_CONTACTNUMBER }, 205 { .name = MT_CLS_WIN_8, 206 .quirks = MT_QUIRK_ALWAYS_VALID | 207 MT_QUIRK_IGNORE_DUPLICATES | 208 MT_QUIRK_HOVERING | 209 MT_QUIRK_CONTACT_CNT_ACCURATE }, 210 { .name = MT_CLS_EXPORT_ALL_INPUTS, 211 .quirks = MT_QUIRK_ALWAYS_VALID | 212 MT_QUIRK_CONTACT_CNT_ACCURATE, 213 .export_all_inputs = true }, 214 215 /* 216 * vendor specific classes 217 */ 218 { .name = MT_CLS_3M, 219 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE | 220 MT_QUIRK_SLOT_IS_CONTACTID, 221 .sn_move = 2048, 222 .sn_width = 128, 223 .sn_height = 128, 224 .maxcontacts = 60, 225 }, 226 { .name = MT_CLS_EGALAX, 227 .quirks = MT_QUIRK_SLOT_IS_CONTACTID | 228 MT_QUIRK_VALID_IS_INRANGE, 229 .sn_move = 4096, 230 .sn_pressure = 32, 231 }, 232 { .name = MT_CLS_EGALAX_SERIAL, 233 .quirks = MT_QUIRK_SLOT_IS_CONTACTID | 234 MT_QUIRK_ALWAYS_VALID, 235 .sn_move = 4096, 236 .sn_pressure = 32, 237 }, 238 { .name = MT_CLS_TOPSEED, 239 .quirks = MT_QUIRK_ALWAYS_VALID, 240 .is_indirect = true, 241 .maxcontacts = 2, 242 }, 243 { .name = MT_CLS_PANASONIC, 244 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP, 245 .maxcontacts = 4 }, 246 { .name = MT_CLS_GENERALTOUCH_TWOFINGERS, 247 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP | 248 MT_QUIRK_VALID_IS_INRANGE | 249 MT_QUIRK_SLOT_IS_CONTACTID, 250 .maxcontacts = 2 251 }, 252 { .name = MT_CLS_GENERALTOUCH_PWT_TENFINGERS, 253 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP | 254 MT_QUIRK_SLOT_IS_CONTACTID 255 }, 256 257 { .name = MT_CLS_FLATFROG, 258 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP | 259 MT_QUIRK_NO_AREA, 260 .sn_move = 2048, 261 .maxcontacts = 40, 262 }, 263 { .name = MT_CLS_VTL, 264 .quirks = MT_QUIRK_ALWAYS_VALID | 265 MT_QUIRK_CONTACT_CNT_ACCURATE | 266 MT_QUIRK_FORCE_GET_FEATURE, 267 }, 268 { } 269 }; 270 271 static ssize_t mt_show_quirks(struct device *dev, 272 struct device_attribute *attr, 273 char *buf) 274 { 275 struct hid_device *hdev = container_of(dev, struct hid_device, dev); 276 struct mt_device *td = hid_get_drvdata(hdev); 277 278 return sprintf(buf, "%u\n", td->mtclass.quirks); 279 } 280 281 static ssize_t mt_set_quirks(struct device *dev, 282 struct device_attribute *attr, 283 const char *buf, size_t count) 284 { 285 struct hid_device *hdev = container_of(dev, struct hid_device, dev); 286 struct mt_device *td = hid_get_drvdata(hdev); 287 288 unsigned long val; 289 290 if (kstrtoul(buf, 0, &val)) 291 return -EINVAL; 292 293 td->mtclass.quirks = val; 294 295 if (td->cc_index < 0) 296 td->mtclass.quirks &= ~MT_QUIRK_CONTACT_CNT_ACCURATE; 297 298 return count; 299 } 300 301 static DEVICE_ATTR(quirks, S_IWUSR | S_IRUGO, mt_show_quirks, mt_set_quirks); 302 303 static struct attribute *sysfs_attrs[] = { 304 &dev_attr_quirks.attr, 305 NULL 306 }; 307 308 static struct attribute_group mt_attribute_group = { 309 .attrs = sysfs_attrs 310 }; 311 312 static void mt_feature_mapping(struct hid_device *hdev, 313 struct hid_field *field, struct hid_usage *usage) 314 { 315 struct mt_device *td = hid_get_drvdata(hdev); 316 317 switch (usage->hid) { 318 case HID_DG_INPUTMODE: 319 /* Ignore if value index is out of bounds. */ 320 if (usage->usage_index >= field->report_count) { 321 dev_err(&hdev->dev, "HID_DG_INPUTMODE out of range\n"); 322 break; 323 } 324 325 td->inputmode = field->report->id; 326 td->inputmode_index = usage->usage_index; 327 328 break; 329 case HID_DG_CONTACTMAX: 330 td->maxcontact_report_id = field->report->id; 331 td->maxcontacts = field->value[0]; 332 if (!td->maxcontacts && 333 field->logical_maximum <= MT_MAX_MAXCONTACT) 334 td->maxcontacts = field->logical_maximum; 335 if (td->mtclass.maxcontacts) 336 /* check if the maxcontacts is given by the class */ 337 td->maxcontacts = td->mtclass.maxcontacts; 338 339 break; 340 case HID_DG_BUTTONTYPE: 341 if (usage->usage_index >= field->report_count) { 342 dev_err(&hdev->dev, "HID_DG_BUTTONTYPE out of range\n"); 343 break; 344 } 345 346 if (field->value[usage->usage_index] == MT_BUTTONTYPE_CLICKPAD) 347 td->is_buttonpad = true; 348 349 break; 350 } 351 } 352 353 static void set_abs(struct input_dev *input, unsigned int code, 354 struct hid_field *field, int snratio) 355 { 356 int fmin = field->logical_minimum; 357 int fmax = field->logical_maximum; 358 int fuzz = snratio ? (fmax - fmin) / snratio : 0; 359 input_set_abs_params(input, code, fmin, fmax, fuzz, 0); 360 input_abs_set_res(input, code, hidinput_calc_abs_res(field, code)); 361 } 362 363 static void mt_store_field(struct hid_usage *usage, struct mt_device *td, 364 struct hid_input *hi) 365 { 366 struct mt_fields *f = td->fields; 367 368 if (f->length >= HID_MAX_FIELDS) 369 return; 370 371 f->usages[f->length++] = usage->hid; 372 } 373 374 static int mt_touch_input_mapping(struct hid_device *hdev, struct hid_input *hi, 375 struct hid_field *field, struct hid_usage *usage, 376 unsigned long **bit, int *max) 377 { 378 struct mt_device *td = hid_get_drvdata(hdev); 379 struct mt_class *cls = &td->mtclass; 380 int code; 381 struct hid_usage *prev_usage = NULL; 382 383 if (field->application == HID_DG_TOUCHSCREEN) 384 td->mt_flags |= INPUT_MT_DIRECT; 385 386 /* 387 * Model touchscreens providing buttons as touchpads. 388 */ 389 if (field->application == HID_DG_TOUCHPAD || 390 (usage->hid & HID_USAGE_PAGE) == HID_UP_BUTTON) { 391 td->mt_flags |= INPUT_MT_POINTER; 392 td->inputmode_value = MT_INPUTMODE_TOUCHPAD; 393 } 394 395 /* count the buttons on touchpads */ 396 if ((usage->hid & HID_USAGE_PAGE) == HID_UP_BUTTON) 397 td->buttons_count++; 398 399 if (usage->usage_index) 400 prev_usage = &field->usage[usage->usage_index - 1]; 401 402 switch (usage->hid & HID_USAGE_PAGE) { 403 404 case HID_UP_GENDESK: 405 switch (usage->hid) { 406 case HID_GD_X: 407 if (prev_usage && (prev_usage->hid == usage->hid)) { 408 hid_map_usage(hi, usage, bit, max, 409 EV_ABS, ABS_MT_TOOL_X); 410 set_abs(hi->input, ABS_MT_TOOL_X, field, 411 cls->sn_move); 412 } else { 413 hid_map_usage(hi, usage, bit, max, 414 EV_ABS, ABS_MT_POSITION_X); 415 set_abs(hi->input, ABS_MT_POSITION_X, field, 416 cls->sn_move); 417 } 418 419 mt_store_field(usage, td, hi); 420 return 1; 421 case HID_GD_Y: 422 if (prev_usage && (prev_usage->hid == usage->hid)) { 423 hid_map_usage(hi, usage, bit, max, 424 EV_ABS, ABS_MT_TOOL_Y); 425 set_abs(hi->input, ABS_MT_TOOL_Y, field, 426 cls->sn_move); 427 } else { 428 hid_map_usage(hi, usage, bit, max, 429 EV_ABS, ABS_MT_POSITION_Y); 430 set_abs(hi->input, ABS_MT_POSITION_Y, field, 431 cls->sn_move); 432 } 433 434 mt_store_field(usage, td, hi); 435 return 1; 436 } 437 return 0; 438 439 case HID_UP_DIGITIZER: 440 switch (usage->hid) { 441 case HID_DG_INRANGE: 442 if (cls->quirks & MT_QUIRK_HOVERING) { 443 hid_map_usage(hi, usage, bit, max, 444 EV_ABS, ABS_MT_DISTANCE); 445 input_set_abs_params(hi->input, 446 ABS_MT_DISTANCE, 0, 1, 0, 0); 447 } 448 mt_store_field(usage, td, hi); 449 return 1; 450 case HID_DG_CONFIDENCE: 451 mt_store_field(usage, td, hi); 452 return 1; 453 case HID_DG_TIPSWITCH: 454 hid_map_usage(hi, usage, bit, max, EV_KEY, BTN_TOUCH); 455 input_set_capability(hi->input, EV_KEY, BTN_TOUCH); 456 mt_store_field(usage, td, hi); 457 return 1; 458 case HID_DG_CONTACTID: 459 mt_store_field(usage, td, hi); 460 td->touches_by_report++; 461 td->mt_report_id = field->report->id; 462 return 1; 463 case HID_DG_WIDTH: 464 hid_map_usage(hi, usage, bit, max, 465 EV_ABS, ABS_MT_TOUCH_MAJOR); 466 if (!(cls->quirks & MT_QUIRK_NO_AREA)) 467 set_abs(hi->input, ABS_MT_TOUCH_MAJOR, field, 468 cls->sn_width); 469 mt_store_field(usage, td, hi); 470 return 1; 471 case HID_DG_HEIGHT: 472 hid_map_usage(hi, usage, bit, max, 473 EV_ABS, ABS_MT_TOUCH_MINOR); 474 if (!(cls->quirks & MT_QUIRK_NO_AREA)) { 475 set_abs(hi->input, ABS_MT_TOUCH_MINOR, field, 476 cls->sn_height); 477 input_set_abs_params(hi->input, 478 ABS_MT_ORIENTATION, 0, 1, 0, 0); 479 } 480 mt_store_field(usage, td, hi); 481 return 1; 482 case HID_DG_TIPPRESSURE: 483 hid_map_usage(hi, usage, bit, max, 484 EV_ABS, ABS_MT_PRESSURE); 485 set_abs(hi->input, ABS_MT_PRESSURE, field, 486 cls->sn_pressure); 487 mt_store_field(usage, td, hi); 488 return 1; 489 case HID_DG_CONTACTCOUNT: 490 /* Ignore if indexes are out of bounds. */ 491 if (field->index >= field->report->maxfield || 492 usage->usage_index >= field->report_count) 493 return 1; 494 td->cc_index = field->index; 495 td->cc_value_index = usage->usage_index; 496 return 1; 497 case HID_DG_CONTACTMAX: 498 /* we don't set td->last_slot_field as contactcount and 499 * contact max are global to the report */ 500 return -1; 501 case HID_DG_TOUCH: 502 /* Legacy devices use TIPSWITCH and not TOUCH. 503 * Let's just ignore this field. */ 504 return -1; 505 } 506 /* let hid-input decide for the others */ 507 return 0; 508 509 case HID_UP_BUTTON: 510 code = BTN_MOUSE + ((usage->hid - 1) & HID_USAGE); 511 hid_map_usage(hi, usage, bit, max, EV_KEY, code); 512 input_set_capability(hi->input, EV_KEY, code); 513 return 1; 514 515 case 0xff000000: 516 /* we do not want to map these: no input-oriented meaning */ 517 return -1; 518 } 519 520 return 0; 521 } 522 523 static int mt_touch_input_mapped(struct hid_device *hdev, struct hid_input *hi, 524 struct hid_field *field, struct hid_usage *usage, 525 unsigned long **bit, int *max) 526 { 527 if (usage->type == EV_KEY || usage->type == EV_ABS) 528 set_bit(usage->type, hi->input->evbit); 529 530 return -1; 531 } 532 533 static int mt_compute_slot(struct mt_device *td, struct input_dev *input) 534 { 535 __s32 quirks = td->mtclass.quirks; 536 537 if (quirks & MT_QUIRK_SLOT_IS_CONTACTID) 538 return td->curdata.contactid; 539 540 if (quirks & MT_QUIRK_CYPRESS) 541 return cypress_compute_slot(td); 542 543 if (quirks & MT_QUIRK_SLOT_IS_CONTACTNUMBER) 544 return td->num_received; 545 546 if (quirks & MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE) 547 return td->curdata.contactid - 1; 548 549 return input_mt_get_slot_by_key(input, td->curdata.contactid); 550 } 551 552 /* 553 * this function is called when a whole contact has been processed, 554 * so that it can assign it to a slot and store the data there 555 */ 556 static void mt_complete_slot(struct mt_device *td, struct input_dev *input) 557 { 558 if ((td->mtclass.quirks & MT_QUIRK_CONTACT_CNT_ACCURATE) && 559 td->num_received >= td->num_expected) 560 return; 561 562 if (td->curvalid || (td->mtclass.quirks & MT_QUIRK_ALWAYS_VALID)) { 563 int slotnum = mt_compute_slot(td, input); 564 struct mt_slot *s = &td->curdata; 565 struct input_mt *mt = input->mt; 566 567 if (slotnum < 0 || slotnum >= td->maxcontacts) 568 return; 569 570 if ((td->mtclass.quirks & MT_QUIRK_IGNORE_DUPLICATES) && mt) { 571 struct input_mt_slot *slot = &mt->slots[slotnum]; 572 if (input_mt_is_active(slot) && 573 input_mt_is_used(mt, slot)) 574 return; 575 } 576 577 input_mt_slot(input, slotnum); 578 input_mt_report_slot_state(input, MT_TOOL_FINGER, 579 s->touch_state || s->inrange_state); 580 if (s->touch_state || s->inrange_state) { 581 /* this finger is in proximity of the sensor */ 582 int wide = (s->w > s->h); 583 /* divided by two to match visual scale of touch */ 584 int major = max(s->w, s->h) >> 1; 585 int minor = min(s->w, s->h) >> 1; 586 587 input_event(input, EV_ABS, ABS_MT_POSITION_X, s->x); 588 input_event(input, EV_ABS, ABS_MT_POSITION_Y, s->y); 589 input_event(input, EV_ABS, ABS_MT_TOOL_X, s->cx); 590 input_event(input, EV_ABS, ABS_MT_TOOL_Y, s->cy); 591 input_event(input, EV_ABS, ABS_MT_DISTANCE, 592 !s->touch_state); 593 input_event(input, EV_ABS, ABS_MT_ORIENTATION, wide); 594 input_event(input, EV_ABS, ABS_MT_PRESSURE, s->p); 595 input_event(input, EV_ABS, ABS_MT_TOUCH_MAJOR, major); 596 input_event(input, EV_ABS, ABS_MT_TOUCH_MINOR, minor); 597 } 598 } 599 600 td->num_received++; 601 } 602 603 /* 604 * this function is called when a whole packet has been received and processed, 605 * so that it can decide what to send to the input layer. 606 */ 607 static void mt_sync_frame(struct mt_device *td, struct input_dev *input) 608 { 609 input_mt_sync_frame(input); 610 input_sync(input); 611 td->num_received = 0; 612 } 613 614 static int mt_touch_event(struct hid_device *hid, struct hid_field *field, 615 struct hid_usage *usage, __s32 value) 616 { 617 /* we will handle the hidinput part later, now remains hiddev */ 618 if (hid->claimed & HID_CLAIMED_HIDDEV && hid->hiddev_hid_event) 619 hid->hiddev_hid_event(hid, field, usage, value); 620 621 return 1; 622 } 623 624 static void mt_process_mt_event(struct hid_device *hid, struct hid_field *field, 625 struct hid_usage *usage, __s32 value) 626 { 627 struct mt_device *td = hid_get_drvdata(hid); 628 __s32 quirks = td->mtclass.quirks; 629 struct input_dev *input = field->hidinput->input; 630 631 if (hid->claimed & HID_CLAIMED_INPUT) { 632 switch (usage->hid) { 633 case HID_DG_INRANGE: 634 if (quirks & MT_QUIRK_VALID_IS_INRANGE) 635 td->curvalid = value; 636 if (quirks & MT_QUIRK_HOVERING) 637 td->curdata.inrange_state = value; 638 break; 639 case HID_DG_TIPSWITCH: 640 if (quirks & MT_QUIRK_NOT_SEEN_MEANS_UP) 641 td->curvalid = value; 642 td->curdata.touch_state = value; 643 break; 644 case HID_DG_CONFIDENCE: 645 if (quirks & MT_QUIRK_VALID_IS_CONFIDENCE) 646 td->curvalid = value; 647 break; 648 case HID_DG_CONTACTID: 649 td->curdata.contactid = value; 650 break; 651 case HID_DG_TIPPRESSURE: 652 td->curdata.p = value; 653 break; 654 case HID_GD_X: 655 if (usage->code == ABS_MT_TOOL_X) 656 td->curdata.cx = value; 657 else 658 td->curdata.x = value; 659 break; 660 case HID_GD_Y: 661 if (usage->code == ABS_MT_TOOL_Y) 662 td->curdata.cy = value; 663 else 664 td->curdata.y = value; 665 break; 666 case HID_DG_WIDTH: 667 td->curdata.w = value; 668 break; 669 case HID_DG_HEIGHT: 670 td->curdata.h = value; 671 break; 672 case HID_DG_CONTACTCOUNT: 673 break; 674 case HID_DG_TOUCH: 675 /* do nothing */ 676 break; 677 678 default: 679 if (usage->type) 680 input_event(input, usage->type, usage->code, 681 value); 682 return; 683 } 684 685 if (usage->usage_index + 1 == field->report_count) { 686 /* we only take into account the last report. */ 687 if (usage->hid == td->last_slot_field) 688 mt_complete_slot(td, field->hidinput->input); 689 } 690 691 } 692 } 693 694 static void mt_touch_report(struct hid_device *hid, struct hid_report *report) 695 { 696 struct mt_device *td = hid_get_drvdata(hid); 697 struct hid_field *field; 698 unsigned count; 699 int r, n; 700 701 /* 702 * Includes multi-packet support where subsequent 703 * packets are sent with zero contactcount. 704 */ 705 if (td->cc_index >= 0) { 706 struct hid_field *field = report->field[td->cc_index]; 707 int value = field->value[td->cc_value_index]; 708 if (value) 709 td->num_expected = value; 710 } 711 712 for (r = 0; r < report->maxfield; r++) { 713 field = report->field[r]; 714 count = field->report_count; 715 716 if (!(HID_MAIN_ITEM_VARIABLE & field->flags)) 717 continue; 718 719 for (n = 0; n < count; n++) 720 mt_process_mt_event(hid, field, &field->usage[n], 721 field->value[n]); 722 } 723 724 if (td->num_received >= td->num_expected) 725 mt_sync_frame(td, report->field[0]->hidinput->input); 726 } 727 728 static void mt_touch_input_configured(struct hid_device *hdev, 729 struct hid_input *hi) 730 { 731 struct mt_device *td = hid_get_drvdata(hdev); 732 struct mt_class *cls = &td->mtclass; 733 struct input_dev *input = hi->input; 734 735 if (!td->maxcontacts) 736 td->maxcontacts = MT_DEFAULT_MAXCONTACT; 737 738 mt_post_parse(td); 739 if (td->serial_maybe) 740 mt_post_parse_default_settings(td); 741 742 if (cls->is_indirect) 743 td->mt_flags |= INPUT_MT_POINTER; 744 745 if (cls->quirks & MT_QUIRK_NOT_SEEN_MEANS_UP) 746 td->mt_flags |= INPUT_MT_DROP_UNUSED; 747 748 /* check for clickpads */ 749 if ((td->mt_flags & INPUT_MT_POINTER) && (td->buttons_count == 1)) 750 td->is_buttonpad = true; 751 752 if (td->is_buttonpad) 753 __set_bit(INPUT_PROP_BUTTONPAD, input->propbit); 754 755 input_mt_init_slots(input, td->maxcontacts, td->mt_flags); 756 757 td->mt_flags = 0; 758 } 759 760 static int mt_input_mapping(struct hid_device *hdev, struct hid_input *hi, 761 struct hid_field *field, struct hid_usage *usage, 762 unsigned long **bit, int *max) 763 { 764 struct mt_device *td = hid_get_drvdata(hdev); 765 766 /* 767 * If mtclass.export_all_inputs is not set, only map fields from 768 * TouchScreen or TouchPad collections. We need to ignore fields 769 * that belong to other collections such as Mouse that might have 770 * the same GenericDesktop usages. 771 */ 772 if (!td->mtclass.export_all_inputs && 773 field->application != HID_DG_TOUCHSCREEN && 774 field->application != HID_DG_PEN && 775 field->application != HID_DG_TOUCHPAD) 776 return -1; 777 778 /* 779 * some egalax touchscreens have "application == HID_DG_TOUCHSCREEN" 780 * for the stylus. 781 */ 782 if (field->physical == HID_DG_STYLUS) 783 return 0; 784 785 if (field->application == HID_DG_TOUCHSCREEN || 786 field->application == HID_DG_TOUCHPAD) 787 return mt_touch_input_mapping(hdev, hi, field, usage, bit, max); 788 789 /* let hid-core decide for the others */ 790 return 0; 791 } 792 793 static int mt_input_mapped(struct hid_device *hdev, struct hid_input *hi, 794 struct hid_field *field, struct hid_usage *usage, 795 unsigned long **bit, int *max) 796 { 797 /* 798 * some egalax touchscreens have "application == HID_DG_TOUCHSCREEN" 799 * for the stylus. 800 */ 801 if (field->physical == HID_DG_STYLUS) 802 return 0; 803 804 if (field->application == HID_DG_TOUCHSCREEN || 805 field->application == HID_DG_TOUCHPAD) 806 return mt_touch_input_mapped(hdev, hi, field, usage, bit, max); 807 808 /* let hid-core decide for the others */ 809 return 0; 810 } 811 812 static int mt_event(struct hid_device *hid, struct hid_field *field, 813 struct hid_usage *usage, __s32 value) 814 { 815 struct mt_device *td = hid_get_drvdata(hid); 816 817 if (field->report->id == td->mt_report_id) 818 return mt_touch_event(hid, field, usage, value); 819 820 return 0; 821 } 822 823 static void mt_report(struct hid_device *hid, struct hid_report *report) 824 { 825 struct mt_device *td = hid_get_drvdata(hid); 826 struct hid_field *field = report->field[0]; 827 828 if (!(hid->claimed & HID_CLAIMED_INPUT)) 829 return; 830 831 if (report->id == td->mt_report_id) 832 return mt_touch_report(hid, report); 833 834 if (field && field->hidinput && field->hidinput->input) 835 input_sync(field->hidinput->input); 836 } 837 838 static void mt_set_input_mode(struct hid_device *hdev) 839 { 840 struct mt_device *td = hid_get_drvdata(hdev); 841 struct hid_report *r; 842 struct hid_report_enum *re; 843 struct mt_class *cls = &td->mtclass; 844 char *buf; 845 int report_len; 846 847 if (td->inputmode < 0) 848 return; 849 850 re = &(hdev->report_enum[HID_FEATURE_REPORT]); 851 r = re->report_id_hash[td->inputmode]; 852 if (r) { 853 if (cls->quirks & MT_QUIRK_FORCE_GET_FEATURE) { 854 report_len = hid_report_len(r); 855 buf = hid_alloc_report_buf(r, GFP_KERNEL); 856 if (!buf) { 857 hid_err(hdev, "failed to allocate buffer for report\n"); 858 return; 859 } 860 hid_hw_raw_request(hdev, r->id, buf, report_len, 861 HID_FEATURE_REPORT, 862 HID_REQ_GET_REPORT); 863 kfree(buf); 864 } 865 r->field[0]->value[td->inputmode_index] = td->inputmode_value; 866 hid_hw_request(hdev, r, HID_REQ_SET_REPORT); 867 } 868 } 869 870 static void mt_set_maxcontacts(struct hid_device *hdev) 871 { 872 struct mt_device *td = hid_get_drvdata(hdev); 873 struct hid_report *r; 874 struct hid_report_enum *re; 875 int fieldmax, max; 876 877 if (td->maxcontact_report_id < 0) 878 return; 879 880 if (!td->mtclass.maxcontacts) 881 return; 882 883 re = &hdev->report_enum[HID_FEATURE_REPORT]; 884 r = re->report_id_hash[td->maxcontact_report_id]; 885 if (r) { 886 max = td->mtclass.maxcontacts; 887 fieldmax = r->field[0]->logical_maximum; 888 max = min(fieldmax, max); 889 if (r->field[0]->value[0] != max) { 890 r->field[0]->value[0] = max; 891 hid_hw_request(hdev, r, HID_REQ_SET_REPORT); 892 } 893 } 894 } 895 896 static void mt_post_parse_default_settings(struct mt_device *td) 897 { 898 __s32 quirks = td->mtclass.quirks; 899 900 /* unknown serial device needs special quirks */ 901 if (td->touches_by_report == 1) { 902 quirks |= MT_QUIRK_ALWAYS_VALID; 903 quirks &= ~MT_QUIRK_NOT_SEEN_MEANS_UP; 904 quirks &= ~MT_QUIRK_VALID_IS_INRANGE; 905 quirks &= ~MT_QUIRK_VALID_IS_CONFIDENCE; 906 quirks &= ~MT_QUIRK_CONTACT_CNT_ACCURATE; 907 } 908 909 td->mtclass.quirks = quirks; 910 } 911 912 static void mt_post_parse(struct mt_device *td) 913 { 914 struct mt_fields *f = td->fields; 915 struct mt_class *cls = &td->mtclass; 916 917 if (td->touches_by_report > 0) { 918 int field_count_per_touch = f->length / td->touches_by_report; 919 td->last_slot_field = f->usages[field_count_per_touch - 1]; 920 } 921 922 if (td->cc_index < 0) 923 cls->quirks &= ~MT_QUIRK_CONTACT_CNT_ACCURATE; 924 } 925 926 static void mt_input_configured(struct hid_device *hdev, struct hid_input *hi) 927 { 928 struct mt_device *td = hid_get_drvdata(hdev); 929 char *name; 930 const char *suffix = NULL; 931 struct hid_field *field = hi->report->field[0]; 932 933 if (hi->report->id == td->mt_report_id) 934 mt_touch_input_configured(hdev, hi); 935 936 /* 937 * some egalax touchscreens have "application == HID_DG_TOUCHSCREEN" 938 * for the stylus. Check this first, and then rely on the application 939 * field. 940 */ 941 if (hi->report->field[0]->physical == HID_DG_STYLUS) { 942 suffix = "Pen"; 943 /* force BTN_STYLUS to allow tablet matching in udev */ 944 __set_bit(BTN_STYLUS, hi->input->keybit); 945 } else { 946 switch (field->application) { 947 case HID_GD_KEYBOARD: 948 suffix = "Keyboard"; 949 break; 950 case HID_GD_KEYPAD: 951 suffix = "Keypad"; 952 break; 953 case HID_GD_MOUSE: 954 suffix = "Mouse"; 955 break; 956 case HID_DG_STYLUS: 957 suffix = "Pen"; 958 /* force BTN_STYLUS to allow tablet matching in udev */ 959 __set_bit(BTN_STYLUS, hi->input->keybit); 960 break; 961 case HID_DG_TOUCHSCREEN: 962 /* we do not set suffix = "Touchscreen" */ 963 break; 964 case HID_GD_SYSTEM_CONTROL: 965 suffix = "System Control"; 966 break; 967 case HID_CP_CONSUMER_CONTROL: 968 suffix = "Consumer Control"; 969 break; 970 default: 971 suffix = "UNKNOWN"; 972 break; 973 } 974 } 975 976 if (suffix) { 977 name = devm_kzalloc(&hi->input->dev, 978 strlen(hdev->name) + strlen(suffix) + 2, 979 GFP_KERNEL); 980 if (name) { 981 sprintf(name, "%s %s", hdev->name, suffix); 982 hi->input->name = name; 983 } 984 } 985 } 986 987 static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id) 988 { 989 int ret, i; 990 struct mt_device *td; 991 struct mt_class *mtclass = mt_classes; /* MT_CLS_DEFAULT */ 992 993 for (i = 0; mt_classes[i].name ; i++) { 994 if (id->driver_data == mt_classes[i].name) { 995 mtclass = &(mt_classes[i]); 996 break; 997 } 998 } 999 1000 /* This allows the driver to correctly support devices 1001 * that emit events over several HID messages. 1002 */ 1003 hdev->quirks |= HID_QUIRK_NO_INPUT_SYNC; 1004 1005 /* 1006 * This allows the driver to handle different input sensors 1007 * that emits events through different reports on the same HID 1008 * device. 1009 */ 1010 hdev->quirks |= HID_QUIRK_MULTI_INPUT; 1011 hdev->quirks |= HID_QUIRK_NO_EMPTY_INPUT; 1012 1013 /* 1014 * Handle special quirks for Windows 8 certified devices. 1015 */ 1016 if (id->group == HID_GROUP_MULTITOUCH_WIN_8) 1017 /* 1018 * Some multitouch screens do not like to be polled for input 1019 * reports. Fortunately, the Win8 spec says that all touches 1020 * should be sent during each report, making the initialization 1021 * of input reports unnecessary. 1022 */ 1023 hdev->quirks |= HID_QUIRK_NO_INIT_INPUT_REPORTS; 1024 1025 td = devm_kzalloc(&hdev->dev, sizeof(struct mt_device), GFP_KERNEL); 1026 if (!td) { 1027 dev_err(&hdev->dev, "cannot allocate multitouch data\n"); 1028 return -ENOMEM; 1029 } 1030 td->mtclass = *mtclass; 1031 td->inputmode = -1; 1032 td->maxcontact_report_id = -1; 1033 td->inputmode_value = MT_INPUTMODE_TOUCHSCREEN; 1034 td->cc_index = -1; 1035 td->mt_report_id = -1; 1036 hid_set_drvdata(hdev, td); 1037 1038 td->fields = devm_kzalloc(&hdev->dev, sizeof(struct mt_fields), 1039 GFP_KERNEL); 1040 if (!td->fields) { 1041 dev_err(&hdev->dev, "cannot allocate multitouch fields data\n"); 1042 return -ENOMEM; 1043 } 1044 1045 if (id->vendor == HID_ANY_ID && id->product == HID_ANY_ID) 1046 td->serial_maybe = true; 1047 1048 ret = hid_parse(hdev); 1049 if (ret != 0) 1050 return ret; 1051 1052 ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT); 1053 if (ret) 1054 return ret; 1055 1056 ret = sysfs_create_group(&hdev->dev.kobj, &mt_attribute_group); 1057 1058 mt_set_maxcontacts(hdev); 1059 mt_set_input_mode(hdev); 1060 1061 /* release .fields memory as it is not used anymore */ 1062 devm_kfree(&hdev->dev, td->fields); 1063 td->fields = NULL; 1064 1065 return 0; 1066 } 1067 1068 #ifdef CONFIG_PM 1069 static int mt_reset_resume(struct hid_device *hdev) 1070 { 1071 mt_set_maxcontacts(hdev); 1072 mt_set_input_mode(hdev); 1073 return 0; 1074 } 1075 1076 static int mt_resume(struct hid_device *hdev) 1077 { 1078 /* Some Elan legacy devices require SET_IDLE to be set on resume. 1079 * It should be safe to send it to other devices too. 1080 * Tested on 3M, Stantum, Cypress, Zytronic, eGalax, and Elan panels. */ 1081 1082 hid_hw_idle(hdev, 0, 0, HID_REQ_SET_IDLE); 1083 1084 return 0; 1085 } 1086 #endif 1087 1088 static void mt_remove(struct hid_device *hdev) 1089 { 1090 sysfs_remove_group(&hdev->dev.kobj, &mt_attribute_group); 1091 hid_hw_stop(hdev); 1092 } 1093 1094 /* 1095 * This list contains only: 1096 * - VID/PID of products not working with the default multitouch handling 1097 * - 2 generic rules. 1098 * So there is no point in adding here any device with MT_CLS_DEFAULT. 1099 */ 1100 static const struct hid_device_id mt_devices[] = { 1101 1102 /* 3M panels */ 1103 { .driver_data = MT_CLS_3M, 1104 MT_USB_DEVICE(USB_VENDOR_ID_3M, 1105 USB_DEVICE_ID_3M1968) }, 1106 { .driver_data = MT_CLS_3M, 1107 MT_USB_DEVICE(USB_VENDOR_ID_3M, 1108 USB_DEVICE_ID_3M2256) }, 1109 { .driver_data = MT_CLS_3M, 1110 MT_USB_DEVICE(USB_VENDOR_ID_3M, 1111 USB_DEVICE_ID_3M3266) }, 1112 1113 /* Anton devices */ 1114 { .driver_data = MT_CLS_EXPORT_ALL_INPUTS, 1115 MT_USB_DEVICE(USB_VENDOR_ID_ANTON, 1116 USB_DEVICE_ID_ANTON_TOUCH_PAD) }, 1117 1118 /* Atmel panels */ 1119 { .driver_data = MT_CLS_SERIAL, 1120 MT_USB_DEVICE(USB_VENDOR_ID_ATMEL, 1121 USB_DEVICE_ID_ATMEL_MXT_DIGITIZER) }, 1122 1123 /* Baanto multitouch devices */ 1124 { .driver_data = MT_CLS_NSMU, 1125 MT_USB_DEVICE(USB_VENDOR_ID_BAANTO, 1126 USB_DEVICE_ID_BAANTO_MT_190W2) }, 1127 1128 /* Cando panels */ 1129 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER, 1130 MT_USB_DEVICE(USB_VENDOR_ID_CANDO, 1131 USB_DEVICE_ID_CANDO_MULTI_TOUCH) }, 1132 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER, 1133 MT_USB_DEVICE(USB_VENDOR_ID_CANDO, 1134 USB_DEVICE_ID_CANDO_MULTI_TOUCH_15_6) }, 1135 1136 /* Chunghwa Telecom touch panels */ 1137 { .driver_data = MT_CLS_NSMU, 1138 MT_USB_DEVICE(USB_VENDOR_ID_CHUNGHWAT, 1139 USB_DEVICE_ID_CHUNGHWAT_MULTITOUCH) }, 1140 1141 /* CVTouch panels */ 1142 { .driver_data = MT_CLS_NSMU, 1143 MT_USB_DEVICE(USB_VENDOR_ID_CVTOUCH, 1144 USB_DEVICE_ID_CVTOUCH_SCREEN) }, 1145 1146 /* eGalax devices (resistive) */ 1147 { .driver_data = MT_CLS_EGALAX, 1148 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1149 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_480D) }, 1150 { .driver_data = MT_CLS_EGALAX, 1151 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1152 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_480E) }, 1153 1154 /* eGalax devices (capacitive) */ 1155 { .driver_data = MT_CLS_EGALAX_SERIAL, 1156 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1157 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7207) }, 1158 { .driver_data = MT_CLS_EGALAX, 1159 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1160 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_720C) }, 1161 { .driver_data = MT_CLS_EGALAX_SERIAL, 1162 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1163 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7224) }, 1164 { .driver_data = MT_CLS_EGALAX_SERIAL, 1165 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1166 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_722A) }, 1167 { .driver_data = MT_CLS_EGALAX_SERIAL, 1168 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1169 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_725E) }, 1170 { .driver_data = MT_CLS_EGALAX_SERIAL, 1171 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1172 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7262) }, 1173 { .driver_data = MT_CLS_EGALAX, 1174 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1175 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_726B) }, 1176 { .driver_data = MT_CLS_EGALAX, 1177 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1178 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72A1) }, 1179 { .driver_data = MT_CLS_EGALAX_SERIAL, 1180 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1181 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72AA) }, 1182 { .driver_data = MT_CLS_EGALAX, 1183 HID_USB_DEVICE(USB_VENDOR_ID_DWAV, 1184 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72C4) }, 1185 { .driver_data = MT_CLS_EGALAX, 1186 HID_USB_DEVICE(USB_VENDOR_ID_DWAV, 1187 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72D0) }, 1188 { .driver_data = MT_CLS_EGALAX, 1189 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1190 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72FA) }, 1191 { .driver_data = MT_CLS_EGALAX, 1192 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1193 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7302) }, 1194 { .driver_data = MT_CLS_EGALAX_SERIAL, 1195 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1196 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7349) }, 1197 { .driver_data = MT_CLS_EGALAX_SERIAL, 1198 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1199 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_73F7) }, 1200 { .driver_data = MT_CLS_EGALAX_SERIAL, 1201 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1202 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_A001) }, 1203 1204 /* Elitegroup panel */ 1205 { .driver_data = MT_CLS_SERIAL, 1206 MT_USB_DEVICE(USB_VENDOR_ID_ELITEGROUP, 1207 USB_DEVICE_ID_ELITEGROUP_05D8) }, 1208 1209 /* Flatfrog Panels */ 1210 { .driver_data = MT_CLS_FLATFROG, 1211 MT_USB_DEVICE(USB_VENDOR_ID_FLATFROG, 1212 USB_DEVICE_ID_MULTITOUCH_3200) }, 1213 1214 /* FocalTech Panels */ 1215 { .driver_data = MT_CLS_SERIAL, 1216 MT_USB_DEVICE(USB_VENDOR_ID_CYGNAL, 1217 USB_DEVICE_ID_FOCALTECH_FTXXXX_MULTITOUCH) }, 1218 1219 /* GeneralTouch panel */ 1220 { .driver_data = MT_CLS_GENERALTOUCH_TWOFINGERS, 1221 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 1222 USB_DEVICE_ID_GENERAL_TOUCH_WIN7_TWOFINGERS) }, 1223 { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS, 1224 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 1225 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PWT_TENFINGERS) }, 1226 { .driver_data = MT_CLS_GENERALTOUCH_TWOFINGERS, 1227 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 1228 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_0101) }, 1229 { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS, 1230 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 1231 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_0102) }, 1232 { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS, 1233 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 1234 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_0106) }, 1235 { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS, 1236 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 1237 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_010A) }, 1238 { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS, 1239 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 1240 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_E100) }, 1241 1242 /* Gametel game controller */ 1243 { .driver_data = MT_CLS_NSMU, 1244 MT_BT_DEVICE(USB_VENDOR_ID_FRUCTEL, 1245 USB_DEVICE_ID_GAMETEL_MT_MODE) }, 1246 1247 /* GoodTouch panels */ 1248 { .driver_data = MT_CLS_NSMU, 1249 MT_USB_DEVICE(USB_VENDOR_ID_GOODTOUCH, 1250 USB_DEVICE_ID_GOODTOUCH_000f) }, 1251 1252 /* Hanvon panels */ 1253 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID, 1254 MT_USB_DEVICE(USB_VENDOR_ID_HANVON_ALT, 1255 USB_DEVICE_ID_HANVON_ALT_MULTITOUCH) }, 1256 1257 /* Ilitek dual touch panel */ 1258 { .driver_data = MT_CLS_NSMU, 1259 MT_USB_DEVICE(USB_VENDOR_ID_ILITEK, 1260 USB_DEVICE_ID_ILITEK_MULTITOUCH) }, 1261 1262 /* MosArt panels */ 1263 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE, 1264 MT_USB_DEVICE(USB_VENDOR_ID_ASUS, 1265 USB_DEVICE_ID_ASUS_T91MT)}, 1266 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE, 1267 MT_USB_DEVICE(USB_VENDOR_ID_ASUS, 1268 USB_DEVICE_ID_ASUSTEK_MULTITOUCH_YFO) }, 1269 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE, 1270 MT_USB_DEVICE(USB_VENDOR_ID_TURBOX, 1271 USB_DEVICE_ID_TURBOX_TOUCHSCREEN_MOSART) }, 1272 1273 /* Panasonic panels */ 1274 { .driver_data = MT_CLS_PANASONIC, 1275 MT_USB_DEVICE(USB_VENDOR_ID_PANASONIC, 1276 USB_DEVICE_ID_PANABOARD_UBT780) }, 1277 { .driver_data = MT_CLS_PANASONIC, 1278 MT_USB_DEVICE(USB_VENDOR_ID_PANASONIC, 1279 USB_DEVICE_ID_PANABOARD_UBT880) }, 1280 1281 /* Novatek Panel */ 1282 { .driver_data = MT_CLS_NSMU, 1283 MT_USB_DEVICE(USB_VENDOR_ID_NOVATEK, 1284 USB_DEVICE_ID_NOVATEK_PCT) }, 1285 1286 /* PixArt optical touch screen */ 1287 { .driver_data = MT_CLS_INRANGE_CONTACTNUMBER, 1288 MT_USB_DEVICE(USB_VENDOR_ID_PIXART, 1289 USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN) }, 1290 { .driver_data = MT_CLS_INRANGE_CONTACTNUMBER, 1291 MT_USB_DEVICE(USB_VENDOR_ID_PIXART, 1292 USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN1) }, 1293 { .driver_data = MT_CLS_INRANGE_CONTACTNUMBER, 1294 MT_USB_DEVICE(USB_VENDOR_ID_PIXART, 1295 USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN2) }, 1296 1297 /* PixCir-based panels */ 1298 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID, 1299 MT_USB_DEVICE(USB_VENDOR_ID_CANDO, 1300 USB_DEVICE_ID_CANDO_PIXCIR_MULTI_TOUCH) }, 1301 1302 /* Quanta-based panels */ 1303 { .driver_data = MT_CLS_CONFIDENCE_CONTACT_ID, 1304 MT_USB_DEVICE(USB_VENDOR_ID_QUANTA, 1305 USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3001) }, 1306 1307 /* Stantum panels */ 1308 { .driver_data = MT_CLS_CONFIDENCE, 1309 MT_USB_DEVICE(USB_VENDOR_ID_STANTUM_STM, 1310 USB_DEVICE_ID_MTP_STM)}, 1311 1312 /* TopSeed panels */ 1313 { .driver_data = MT_CLS_TOPSEED, 1314 MT_USB_DEVICE(USB_VENDOR_ID_TOPSEED2, 1315 USB_DEVICE_ID_TOPSEED2_PERIPAD_701) }, 1316 1317 /* Touch International panels */ 1318 { .driver_data = MT_CLS_NSMU, 1319 MT_USB_DEVICE(USB_VENDOR_ID_TOUCH_INTL, 1320 USB_DEVICE_ID_TOUCH_INTL_MULTI_TOUCH) }, 1321 1322 /* Unitec panels */ 1323 { .driver_data = MT_CLS_NSMU, 1324 MT_USB_DEVICE(USB_VENDOR_ID_UNITEC, 1325 USB_DEVICE_ID_UNITEC_USB_TOUCH_0709) }, 1326 { .driver_data = MT_CLS_NSMU, 1327 MT_USB_DEVICE(USB_VENDOR_ID_UNITEC, 1328 USB_DEVICE_ID_UNITEC_USB_TOUCH_0A19) }, 1329 1330 /* VTL panels */ 1331 { .driver_data = MT_CLS_VTL, 1332 MT_USB_DEVICE(USB_VENDOR_ID_VTL, 1333 USB_DEVICE_ID_VTL_MULTITOUCH_FF3F) }, 1334 1335 /* Wistron panels */ 1336 { .driver_data = MT_CLS_NSMU, 1337 MT_USB_DEVICE(USB_VENDOR_ID_WISTRON, 1338 USB_DEVICE_ID_WISTRON_OPTICAL_TOUCH) }, 1339 1340 /* XAT */ 1341 { .driver_data = MT_CLS_NSMU, 1342 MT_USB_DEVICE(USB_VENDOR_ID_XAT, 1343 USB_DEVICE_ID_XAT_CSR) }, 1344 1345 /* Xiroku */ 1346 { .driver_data = MT_CLS_NSMU, 1347 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 1348 USB_DEVICE_ID_XIROKU_SPX) }, 1349 { .driver_data = MT_CLS_NSMU, 1350 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 1351 USB_DEVICE_ID_XIROKU_MPX) }, 1352 { .driver_data = MT_CLS_NSMU, 1353 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 1354 USB_DEVICE_ID_XIROKU_CSR) }, 1355 { .driver_data = MT_CLS_NSMU, 1356 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 1357 USB_DEVICE_ID_XIROKU_SPX1) }, 1358 { .driver_data = MT_CLS_NSMU, 1359 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 1360 USB_DEVICE_ID_XIROKU_MPX1) }, 1361 { .driver_data = MT_CLS_NSMU, 1362 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 1363 USB_DEVICE_ID_XIROKU_CSR1) }, 1364 { .driver_data = MT_CLS_NSMU, 1365 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 1366 USB_DEVICE_ID_XIROKU_SPX2) }, 1367 { .driver_data = MT_CLS_NSMU, 1368 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 1369 USB_DEVICE_ID_XIROKU_MPX2) }, 1370 { .driver_data = MT_CLS_NSMU, 1371 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 1372 USB_DEVICE_ID_XIROKU_CSR2) }, 1373 1374 /* Generic MT device */ 1375 { HID_DEVICE(HID_BUS_ANY, HID_GROUP_MULTITOUCH, HID_ANY_ID, HID_ANY_ID) }, 1376 1377 /* Generic Win 8 certified MT device */ 1378 { .driver_data = MT_CLS_WIN_8, 1379 HID_DEVICE(HID_BUS_ANY, HID_GROUP_MULTITOUCH_WIN_8, 1380 HID_ANY_ID, HID_ANY_ID) }, 1381 { } 1382 }; 1383 MODULE_DEVICE_TABLE(hid, mt_devices); 1384 1385 static const struct hid_usage_id mt_grabbed_usages[] = { 1386 { HID_ANY_ID, HID_ANY_ID, HID_ANY_ID }, 1387 { HID_ANY_ID - 1, HID_ANY_ID - 1, HID_ANY_ID - 1} 1388 }; 1389 1390 static struct hid_driver mt_driver = { 1391 .name = "hid-multitouch", 1392 .id_table = mt_devices, 1393 .probe = mt_probe, 1394 .remove = mt_remove, 1395 .input_mapping = mt_input_mapping, 1396 .input_mapped = mt_input_mapped, 1397 .input_configured = mt_input_configured, 1398 .feature_mapping = mt_feature_mapping, 1399 .usage_table = mt_grabbed_usages, 1400 .event = mt_event, 1401 .report = mt_report, 1402 #ifdef CONFIG_PM 1403 .reset_resume = mt_reset_resume, 1404 .resume = mt_resume, 1405 #endif 1406 }; 1407 module_hid_driver(mt_driver); 1408