1 // SPDX-License-Identifier: GPL-2.0-or-later 2 /* 3 * HID driver for multitouch panels 4 * 5 * Copyright (c) 2010-2012 Stephane Chatty <chatty@enac.fr> 6 * Copyright (c) 2010-2013 Benjamin Tissoires <benjamin.tissoires@gmail.com> 7 * Copyright (c) 2010-2012 Ecole Nationale de l'Aviation Civile, France 8 * Copyright (c) 2012-2013 Red Hat, Inc 9 * 10 * This code is partly based on hid-egalax.c: 11 * 12 * Copyright (c) 2010 Stephane Chatty <chatty@enac.fr> 13 * Copyright (c) 2010 Henrik Rydberg <rydberg@euromail.se> 14 * Copyright (c) 2010 Canonical, Ltd. 15 * 16 * This code is partly based on hid-3m-pct.c: 17 * 18 * Copyright (c) 2009-2010 Stephane Chatty <chatty@enac.fr> 19 * Copyright (c) 2010 Henrik Rydberg <rydberg@euromail.se> 20 * Copyright (c) 2010 Canonical, Ltd. 21 */ 22 23 /* 24 */ 25 26 /* 27 * This driver is regularly tested thanks to the test suite in hid-tools[1]. 28 * Please run these regression tests before patching this module so that 29 * your patch won't break existing known devices. 30 * 31 * [1] https://gitlab.freedesktop.org/libevdev/hid-tools 32 */ 33 34 #include <linux/bits.h> 35 #include <linux/device.h> 36 #include <linux/hid.h> 37 #include <linux/module.h> 38 #include <linux/slab.h> 39 #include <linux/input/mt.h> 40 #include <linux/jiffies.h> 41 #include <linux/string.h> 42 #include <linux/timer.h> 43 44 45 MODULE_AUTHOR("Stephane Chatty <chatty@enac.fr>"); 46 MODULE_AUTHOR("Benjamin Tissoires <benjamin.tissoires@gmail.com>"); 47 MODULE_DESCRIPTION("HID multitouch panels"); 48 MODULE_LICENSE("GPL"); 49 50 #include "hid-ids.h" 51 52 /* quirks to control the device */ 53 #define MT_QUIRK_NOT_SEEN_MEANS_UP BIT(0) 54 #define MT_QUIRK_SLOT_IS_CONTACTID BIT(1) 55 #define MT_QUIRK_CYPRESS BIT(2) 56 #define MT_QUIRK_SLOT_IS_CONTACTNUMBER BIT(3) 57 #define MT_QUIRK_ALWAYS_VALID BIT(4) 58 #define MT_QUIRK_VALID_IS_INRANGE BIT(5) 59 #define MT_QUIRK_VALID_IS_CONFIDENCE BIT(6) 60 #define MT_QUIRK_CONFIDENCE BIT(7) 61 #define MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE BIT(8) 62 #define MT_QUIRK_NO_AREA BIT(9) 63 #define MT_QUIRK_IGNORE_DUPLICATES BIT(10) 64 #define MT_QUIRK_HOVERING BIT(11) 65 #define MT_QUIRK_CONTACT_CNT_ACCURATE BIT(12) 66 #define MT_QUIRK_FORCE_GET_FEATURE BIT(13) 67 #define MT_QUIRK_FIX_CONST_CONTACT_ID BIT(14) 68 #define MT_QUIRK_TOUCH_SIZE_SCALING BIT(15) 69 #define MT_QUIRK_STICKY_FINGERS BIT(16) 70 #define MT_QUIRK_ASUS_CUSTOM_UP BIT(17) 71 #define MT_QUIRK_WIN8_PTP_BUTTONS BIT(18) 72 #define MT_QUIRK_SEPARATE_APP_REPORT BIT(19) 73 #define MT_QUIRK_FORCE_MULTI_INPUT BIT(20) 74 #define MT_QUIRK_DISABLE_WAKEUP BIT(21) 75 #define MT_QUIRK_ORIENTATION_INVERT BIT(22) 76 77 #define MT_INPUTMODE_TOUCHSCREEN 0x02 78 #define MT_INPUTMODE_TOUCHPAD 0x03 79 80 #define MT_BUTTONTYPE_CLICKPAD 0 81 82 enum latency_mode { 83 HID_LATENCY_NORMAL = 0, 84 HID_LATENCY_HIGH = 1, 85 }; 86 87 enum report_mode { 88 TOUCHPAD_REPORT_NONE = 0, 89 TOUCHPAD_REPORT_BUTTONS = BIT(0), 90 TOUCHPAD_REPORT_CONTACTS = BIT(1), 91 TOUCHPAD_REPORT_ALL = TOUCHPAD_REPORT_BUTTONS | TOUCHPAD_REPORT_CONTACTS, 92 }; 93 94 #define MT_IO_FLAGS_RUNNING 0 95 #define MT_IO_FLAGS_ACTIVE_SLOTS 1 96 #define MT_IO_FLAGS_PENDING_SLOTS 2 97 98 static const bool mtrue = true; /* default for true */ 99 static const bool mfalse; /* default for false */ 100 static const __s32 mzero; /* default for 0 */ 101 102 #define DEFAULT_TRUE ((void *)&mtrue) 103 #define DEFAULT_FALSE ((void *)&mfalse) 104 #define DEFAULT_ZERO ((void *)&mzero) 105 106 struct mt_usages { 107 struct list_head list; 108 __s32 *x, *y, *cx, *cy, *p, *w, *h, *a; 109 __s32 *contactid; /* the device ContactID assigned to this slot */ 110 bool *tip_state; /* is the touch valid? */ 111 bool *inrange_state; /* is the finger in proximity of the sensor? */ 112 bool *confidence_state; /* is the touch made by a finger? */ 113 }; 114 115 struct mt_application { 116 struct list_head list; 117 unsigned int application; 118 unsigned int report_id; 119 struct list_head mt_usages; /* mt usages list */ 120 121 __s32 quirks; 122 123 __s32 *scantime; /* scantime reported */ 124 __s32 scantime_logical_max; /* max value for raw scantime */ 125 126 __s32 *raw_cc; /* contact count in the report */ 127 int left_button_state; /* left button state */ 128 unsigned int mt_flags; /* flags to pass to input-mt */ 129 130 unsigned long *pending_palm_slots; /* slots where we reported palm 131 * and need to release */ 132 133 __u8 num_received; /* how many contacts we received */ 134 __u8 num_expected; /* expected last contact index */ 135 __u8 buttons_count; /* number of physical buttons per touchpad */ 136 __u8 touches_by_report; /* how many touches are present in one report: 137 * 1 means we should use a serial protocol 138 * > 1 means hybrid (multitouch) protocol 139 */ 140 141 unsigned long jiffies; /* the frame's jiffies */ 142 int timestamp; /* the timestamp to be sent */ 143 int prev_scantime; /* scantime reported previously */ 144 145 bool have_contact_count; 146 }; 147 148 struct mt_class { 149 __s32 name; /* MT_CLS */ 150 __s32 quirks; 151 __s32 sn_move; /* Signal/noise ratio for move events */ 152 __s32 sn_width; /* Signal/noise ratio for width events */ 153 __s32 sn_height; /* Signal/noise ratio for height events */ 154 __s32 sn_pressure; /* Signal/noise ratio for pressure events */ 155 __u8 maxcontacts; 156 bool is_indirect; /* true for touchpads */ 157 bool export_all_inputs; /* do not ignore mouse, keyboards, etc... */ 158 }; 159 160 struct mt_report_data { 161 struct list_head list; 162 struct hid_report *report; 163 struct mt_application *application; 164 bool is_mt_collection; 165 }; 166 167 struct mt_device { 168 struct mt_class mtclass; /* our mt device class */ 169 struct timer_list release_timer; /* to release sticky fingers */ 170 struct hid_device *hdev; /* hid_device we're attached to */ 171 unsigned long mt_io_flags; /* mt flags (MT_IO_FLAGS_*) */ 172 __u8 inputmode_value; /* InputMode HID feature value */ 173 __u8 maxcontacts; 174 bool is_buttonpad; /* is this device a button pad? */ 175 bool serial_maybe; /* need to check for serial protocol */ 176 177 struct list_head applications; 178 struct list_head reports; 179 }; 180 181 static void mt_post_parse_default_settings(struct mt_device *td, 182 struct mt_application *app); 183 static void mt_post_parse(struct mt_device *td, struct mt_application *app); 184 185 /* classes of device behavior */ 186 #define MT_CLS_DEFAULT 0x0001 187 188 #define MT_CLS_SERIAL 0x0002 189 #define MT_CLS_CONFIDENCE 0x0003 190 #define MT_CLS_CONFIDENCE_CONTACT_ID 0x0004 191 #define MT_CLS_CONFIDENCE_MINUS_ONE 0x0005 192 #define MT_CLS_DUAL_INRANGE_CONTACTID 0x0006 193 #define MT_CLS_DUAL_INRANGE_CONTACTNUMBER 0x0007 194 /* reserved 0x0008 */ 195 #define MT_CLS_INRANGE_CONTACTNUMBER 0x0009 196 #define MT_CLS_NSMU 0x000a 197 /* reserved 0x0010 */ 198 /* reserved 0x0011 */ 199 #define MT_CLS_WIN_8 0x0012 200 #define MT_CLS_EXPORT_ALL_INPUTS 0x0013 201 /* reserved 0x0014 */ 202 #define MT_CLS_WIN_8_FORCE_MULTI_INPUT 0x0015 203 #define MT_CLS_WIN_8_DISABLE_WAKEUP 0x0016 204 #define MT_CLS_WIN_8_NO_STICKY_FINGERS 0x0017 205 #define MT_CLS_WIN_8_FORCE_MULTI_INPUT_NSMU 0x0018 206 207 /* vendor specific classes */ 208 #define MT_CLS_3M 0x0101 209 /* reserved 0x0102 */ 210 #define MT_CLS_EGALAX 0x0103 211 #define MT_CLS_EGALAX_SERIAL 0x0104 212 #define MT_CLS_TOPSEED 0x0105 213 #define MT_CLS_PANASONIC 0x0106 214 #define MT_CLS_FLATFROG 0x0107 215 #define MT_CLS_GENERALTOUCH_TWOFINGERS 0x0108 216 #define MT_CLS_GENERALTOUCH_PWT_TENFINGERS 0x0109 217 #define MT_CLS_LG 0x010a 218 #define MT_CLS_ASUS 0x010b 219 #define MT_CLS_VTL 0x0110 220 #define MT_CLS_GOOGLE 0x0111 221 #define MT_CLS_RAZER_BLADE_STEALTH 0x0112 222 #define MT_CLS_SMART_TECH 0x0113 223 #define MT_CLS_SIS 0x0457 224 225 #define MT_DEFAULT_MAXCONTACT 10 226 #define MT_MAX_MAXCONTACT 250 227 228 /* 229 * Resync device and local timestamps after that many microseconds without 230 * receiving data. 231 */ 232 #define MAX_TIMESTAMP_INTERVAL 1000000 233 234 #define MT_USB_DEVICE(v, p) HID_DEVICE(BUS_USB, HID_GROUP_MULTITOUCH, v, p) 235 #define MT_BT_DEVICE(v, p) HID_DEVICE(BUS_BLUETOOTH, HID_GROUP_MULTITOUCH, v, p) 236 237 /* 238 * these device-dependent functions determine what slot corresponds 239 * to a valid contact that was just read. 240 */ 241 242 static int cypress_compute_slot(struct mt_application *application, 243 struct mt_usages *slot) 244 { 245 if (*slot->contactid != 0 || application->num_received == 0) 246 return *slot->contactid; 247 else 248 return -1; 249 } 250 251 static const struct mt_class mt_classes[] = { 252 { .name = MT_CLS_DEFAULT, 253 .quirks = MT_QUIRK_ALWAYS_VALID | 254 MT_QUIRK_CONTACT_CNT_ACCURATE }, 255 { .name = MT_CLS_NSMU, 256 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP }, 257 { .name = MT_CLS_SERIAL, 258 .quirks = MT_QUIRK_ALWAYS_VALID}, 259 { .name = MT_CLS_CONFIDENCE, 260 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE }, 261 { .name = MT_CLS_CONFIDENCE_CONTACT_ID, 262 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE | 263 MT_QUIRK_SLOT_IS_CONTACTID }, 264 { .name = MT_CLS_CONFIDENCE_MINUS_ONE, 265 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE | 266 MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE }, 267 { .name = MT_CLS_DUAL_INRANGE_CONTACTID, 268 .quirks = MT_QUIRK_VALID_IS_INRANGE | 269 MT_QUIRK_SLOT_IS_CONTACTID, 270 .maxcontacts = 2 }, 271 { .name = MT_CLS_DUAL_INRANGE_CONTACTNUMBER, 272 .quirks = MT_QUIRK_VALID_IS_INRANGE | 273 MT_QUIRK_SLOT_IS_CONTACTNUMBER, 274 .maxcontacts = 2 }, 275 { .name = MT_CLS_INRANGE_CONTACTNUMBER, 276 .quirks = MT_QUIRK_VALID_IS_INRANGE | 277 MT_QUIRK_SLOT_IS_CONTACTNUMBER }, 278 { .name = MT_CLS_WIN_8, 279 .quirks = MT_QUIRK_ALWAYS_VALID | 280 MT_QUIRK_IGNORE_DUPLICATES | 281 MT_QUIRK_HOVERING | 282 MT_QUIRK_CONTACT_CNT_ACCURATE | 283 MT_QUIRK_STICKY_FINGERS | 284 MT_QUIRK_WIN8_PTP_BUTTONS, 285 .export_all_inputs = true }, 286 { .name = MT_CLS_EXPORT_ALL_INPUTS, 287 .quirks = MT_QUIRK_ALWAYS_VALID | 288 MT_QUIRK_CONTACT_CNT_ACCURATE, 289 .export_all_inputs = true }, 290 { .name = MT_CLS_WIN_8_FORCE_MULTI_INPUT, 291 .quirks = MT_QUIRK_ALWAYS_VALID | 292 MT_QUIRK_IGNORE_DUPLICATES | 293 MT_QUIRK_HOVERING | 294 MT_QUIRK_CONTACT_CNT_ACCURATE | 295 MT_QUIRK_STICKY_FINGERS | 296 MT_QUIRK_WIN8_PTP_BUTTONS | 297 MT_QUIRK_FORCE_MULTI_INPUT, 298 .export_all_inputs = true }, 299 { .name = MT_CLS_WIN_8_FORCE_MULTI_INPUT_NSMU, 300 .quirks = MT_QUIRK_IGNORE_DUPLICATES | 301 MT_QUIRK_HOVERING | 302 MT_QUIRK_CONTACT_CNT_ACCURATE | 303 MT_QUIRK_STICKY_FINGERS | 304 MT_QUIRK_WIN8_PTP_BUTTONS | 305 MT_QUIRK_FORCE_MULTI_INPUT | 306 MT_QUIRK_NOT_SEEN_MEANS_UP, 307 .export_all_inputs = true }, 308 { .name = MT_CLS_WIN_8_DISABLE_WAKEUP, 309 .quirks = MT_QUIRK_ALWAYS_VALID | 310 MT_QUIRK_IGNORE_DUPLICATES | 311 MT_QUIRK_HOVERING | 312 MT_QUIRK_CONTACT_CNT_ACCURATE | 313 MT_QUIRK_STICKY_FINGERS | 314 MT_QUIRK_WIN8_PTP_BUTTONS | 315 MT_QUIRK_DISABLE_WAKEUP, 316 .export_all_inputs = true }, 317 { .name = MT_CLS_WIN_8_NO_STICKY_FINGERS, 318 .quirks = MT_QUIRK_ALWAYS_VALID | 319 MT_QUIRK_IGNORE_DUPLICATES | 320 MT_QUIRK_HOVERING | 321 MT_QUIRK_CONTACT_CNT_ACCURATE | 322 MT_QUIRK_WIN8_PTP_BUTTONS, 323 .export_all_inputs = true }, 324 325 /* 326 * vendor specific classes 327 */ 328 { .name = MT_CLS_3M, 329 .quirks = MT_QUIRK_VALID_IS_CONFIDENCE | 330 MT_QUIRK_SLOT_IS_CONTACTID | 331 MT_QUIRK_TOUCH_SIZE_SCALING, 332 .sn_move = 2048, 333 .sn_width = 128, 334 .sn_height = 128, 335 .maxcontacts = 60, 336 }, 337 { .name = MT_CLS_EGALAX, 338 .quirks = MT_QUIRK_SLOT_IS_CONTACTID | 339 MT_QUIRK_VALID_IS_INRANGE, 340 .sn_move = 4096, 341 .sn_pressure = 32, 342 }, 343 { .name = MT_CLS_EGALAX_SERIAL, 344 .quirks = MT_QUIRK_SLOT_IS_CONTACTID | 345 MT_QUIRK_ALWAYS_VALID, 346 .sn_move = 4096, 347 .sn_pressure = 32, 348 }, 349 { .name = MT_CLS_TOPSEED, 350 .quirks = MT_QUIRK_ALWAYS_VALID, 351 .is_indirect = true, 352 .maxcontacts = 2, 353 }, 354 { .name = MT_CLS_PANASONIC, 355 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP, 356 .maxcontacts = 4 }, 357 { .name = MT_CLS_GENERALTOUCH_TWOFINGERS, 358 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP | 359 MT_QUIRK_VALID_IS_INRANGE | 360 MT_QUIRK_SLOT_IS_CONTACTID, 361 .maxcontacts = 2 362 }, 363 { .name = MT_CLS_GENERALTOUCH_PWT_TENFINGERS, 364 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP | 365 MT_QUIRK_SLOT_IS_CONTACTID 366 }, 367 368 { .name = MT_CLS_FLATFROG, 369 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP | 370 MT_QUIRK_NO_AREA, 371 .sn_move = 2048, 372 .maxcontacts = 40, 373 }, 374 { .name = MT_CLS_LG, 375 .quirks = MT_QUIRK_ALWAYS_VALID | 376 MT_QUIRK_FIX_CONST_CONTACT_ID | 377 MT_QUIRK_IGNORE_DUPLICATES | 378 MT_QUIRK_HOVERING | 379 MT_QUIRK_CONTACT_CNT_ACCURATE }, 380 { .name = MT_CLS_ASUS, 381 .quirks = MT_QUIRK_ALWAYS_VALID | 382 MT_QUIRK_CONTACT_CNT_ACCURATE | 383 MT_QUIRK_ASUS_CUSTOM_UP }, 384 { .name = MT_CLS_VTL, 385 .quirks = MT_QUIRK_ALWAYS_VALID | 386 MT_QUIRK_CONTACT_CNT_ACCURATE | 387 MT_QUIRK_FORCE_GET_FEATURE, 388 }, 389 { .name = MT_CLS_GOOGLE, 390 .quirks = MT_QUIRK_ALWAYS_VALID | 391 MT_QUIRK_CONTACT_CNT_ACCURATE | 392 MT_QUIRK_SLOT_IS_CONTACTID | 393 MT_QUIRK_HOVERING 394 }, 395 { .name = MT_CLS_RAZER_BLADE_STEALTH, 396 .quirks = MT_QUIRK_ALWAYS_VALID | 397 MT_QUIRK_IGNORE_DUPLICATES | 398 MT_QUIRK_HOVERING | 399 MT_QUIRK_CONTACT_CNT_ACCURATE | 400 MT_QUIRK_WIN8_PTP_BUTTONS, 401 }, 402 { .name = MT_CLS_SMART_TECH, 403 .quirks = MT_QUIRK_ALWAYS_VALID | 404 MT_QUIRK_IGNORE_DUPLICATES | 405 MT_QUIRK_CONTACT_CNT_ACCURATE | 406 MT_QUIRK_SEPARATE_APP_REPORT, 407 }, 408 { .name = MT_CLS_SIS, 409 .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP | 410 MT_QUIRK_ALWAYS_VALID | 411 MT_QUIRK_CONTACT_CNT_ACCURATE, 412 }, 413 { } 414 }; 415 416 static ssize_t mt_show_quirks(struct device *dev, 417 struct device_attribute *attr, 418 char *buf) 419 { 420 struct hid_device *hdev = to_hid_device(dev); 421 struct mt_device *td = hid_get_drvdata(hdev); 422 423 return sprintf(buf, "%u\n", td->mtclass.quirks); 424 } 425 426 static ssize_t mt_set_quirks(struct device *dev, 427 struct device_attribute *attr, 428 const char *buf, size_t count) 429 { 430 struct hid_device *hdev = to_hid_device(dev); 431 struct mt_device *td = hid_get_drvdata(hdev); 432 struct mt_application *application; 433 434 unsigned long val; 435 436 if (kstrtoul(buf, 0, &val)) 437 return -EINVAL; 438 439 td->mtclass.quirks = val; 440 441 list_for_each_entry(application, &td->applications, list) { 442 application->quirks = val; 443 if (!application->have_contact_count) 444 application->quirks &= ~MT_QUIRK_CONTACT_CNT_ACCURATE; 445 } 446 447 return count; 448 } 449 450 static DEVICE_ATTR(quirks, S_IWUSR | S_IRUGO, mt_show_quirks, mt_set_quirks); 451 452 static struct attribute *sysfs_attrs[] = { 453 &dev_attr_quirks.attr, 454 NULL 455 }; 456 457 static const struct attribute_group mt_attribute_group = { 458 .attrs = sysfs_attrs 459 }; 460 461 static void mt_get_feature(struct hid_device *hdev, struct hid_report *report) 462 { 463 int ret; 464 u32 size = hid_report_len(report); 465 u8 *buf; 466 467 /* 468 * Do not fetch the feature report if the device has been explicitly 469 * marked as non-capable. 470 */ 471 if (hdev->quirks & HID_QUIRK_NO_INIT_REPORTS) 472 return; 473 474 buf = hid_alloc_report_buf(report, GFP_KERNEL); 475 if (!buf) 476 return; 477 478 ret = hid_hw_raw_request(hdev, report->id, buf, size, 479 HID_FEATURE_REPORT, HID_REQ_GET_REPORT); 480 if (ret < 0) { 481 dev_warn(&hdev->dev, "failed to fetch feature %d\n", 482 report->id); 483 } else { 484 ret = hid_report_raw_event(hdev, HID_FEATURE_REPORT, buf, 485 size, 0); 486 if (ret) 487 dev_warn(&hdev->dev, "failed to report feature\n"); 488 } 489 490 kfree(buf); 491 } 492 493 static void mt_feature_mapping(struct hid_device *hdev, 494 struct hid_field *field, struct hid_usage *usage) 495 { 496 struct mt_device *td = hid_get_drvdata(hdev); 497 498 switch (usage->hid) { 499 case HID_DG_CONTACTMAX: 500 mt_get_feature(hdev, field->report); 501 502 td->maxcontacts = field->value[0]; 503 if (!td->maxcontacts && 504 field->logical_maximum <= MT_MAX_MAXCONTACT) 505 td->maxcontacts = field->logical_maximum; 506 if (td->mtclass.maxcontacts) 507 /* check if the maxcontacts is given by the class */ 508 td->maxcontacts = td->mtclass.maxcontacts; 509 510 break; 511 case HID_DG_BUTTONTYPE: 512 if (usage->usage_index >= field->report_count) { 513 dev_err(&hdev->dev, "HID_DG_BUTTONTYPE out of range\n"); 514 break; 515 } 516 517 mt_get_feature(hdev, field->report); 518 if (field->value[usage->usage_index] == MT_BUTTONTYPE_CLICKPAD) 519 td->is_buttonpad = true; 520 521 break; 522 case 0xff0000c5: 523 /* Retrieve the Win8 blob once to enable some devices */ 524 if (usage->usage_index == 0) 525 mt_get_feature(hdev, field->report); 526 break; 527 } 528 } 529 530 static void set_abs(struct input_dev *input, unsigned int code, 531 struct hid_field *field, int snratio) 532 { 533 int fmin = field->logical_minimum; 534 int fmax = field->logical_maximum; 535 int fuzz = snratio ? (fmax - fmin) / snratio : 0; 536 input_set_abs_params(input, code, fmin, fmax, fuzz, 0); 537 input_abs_set_res(input, code, hidinput_calc_abs_res(field, code)); 538 } 539 540 static struct mt_usages *mt_allocate_usage(struct hid_device *hdev, 541 struct mt_application *application) 542 { 543 struct mt_usages *usage; 544 545 usage = devm_kzalloc(&hdev->dev, sizeof(*usage), GFP_KERNEL); 546 if (!usage) 547 return NULL; 548 549 /* set some defaults so we do not need to check for null pointers */ 550 usage->x = DEFAULT_ZERO; 551 usage->y = DEFAULT_ZERO; 552 usage->cx = DEFAULT_ZERO; 553 usage->cy = DEFAULT_ZERO; 554 usage->p = DEFAULT_ZERO; 555 usage->w = DEFAULT_ZERO; 556 usage->h = DEFAULT_ZERO; 557 usage->a = DEFAULT_ZERO; 558 usage->contactid = DEFAULT_ZERO; 559 usage->tip_state = DEFAULT_FALSE; 560 usage->inrange_state = DEFAULT_FALSE; 561 usage->confidence_state = DEFAULT_TRUE; 562 563 list_add_tail(&usage->list, &application->mt_usages); 564 565 return usage; 566 } 567 568 static struct mt_application *mt_allocate_application(struct mt_device *td, 569 struct hid_report *report) 570 { 571 unsigned int application = report->application; 572 struct mt_application *mt_application; 573 574 mt_application = devm_kzalloc(&td->hdev->dev, sizeof(*mt_application), 575 GFP_KERNEL); 576 if (!mt_application) 577 return NULL; 578 579 mt_application->application = application; 580 INIT_LIST_HEAD(&mt_application->mt_usages); 581 582 if (application == HID_DG_TOUCHSCREEN) 583 mt_application->mt_flags |= INPUT_MT_DIRECT; 584 585 /* 586 * Model touchscreens providing buttons as touchpads. 587 */ 588 if (application == HID_DG_TOUCHPAD) { 589 mt_application->mt_flags |= INPUT_MT_POINTER; 590 td->inputmode_value = MT_INPUTMODE_TOUCHPAD; 591 } 592 593 mt_application->scantime = DEFAULT_ZERO; 594 mt_application->raw_cc = DEFAULT_ZERO; 595 mt_application->quirks = td->mtclass.quirks; 596 mt_application->report_id = report->id; 597 598 list_add_tail(&mt_application->list, &td->applications); 599 600 return mt_application; 601 } 602 603 static struct mt_application *mt_find_application(struct mt_device *td, 604 struct hid_report *report) 605 { 606 unsigned int application = report->application; 607 struct mt_application *tmp, *mt_application = NULL; 608 609 list_for_each_entry(tmp, &td->applications, list) { 610 if (application == tmp->application) { 611 if (!(td->mtclass.quirks & MT_QUIRK_SEPARATE_APP_REPORT) || 612 tmp->report_id == report->id) { 613 mt_application = tmp; 614 break; 615 } 616 } 617 } 618 619 if (!mt_application) 620 mt_application = mt_allocate_application(td, report); 621 622 return mt_application; 623 } 624 625 static struct mt_report_data *mt_allocate_report_data(struct mt_device *td, 626 struct hid_report *report) 627 { 628 struct mt_report_data *rdata; 629 struct hid_field *field; 630 int r, n; 631 632 rdata = devm_kzalloc(&td->hdev->dev, sizeof(*rdata), GFP_KERNEL); 633 if (!rdata) 634 return NULL; 635 636 rdata->report = report; 637 rdata->application = mt_find_application(td, report); 638 639 if (!rdata->application) { 640 devm_kfree(&td->hdev->dev, rdata); 641 return NULL; 642 } 643 644 for (r = 0; r < report->maxfield; r++) { 645 field = report->field[r]; 646 647 if (!(HID_MAIN_ITEM_VARIABLE & field->flags)) 648 continue; 649 650 if (field->logical == HID_DG_FINGER || td->hdev->group != HID_GROUP_MULTITOUCH_WIN_8) { 651 for (n = 0; n < field->report_count; n++) { 652 if (field->usage[n].hid == HID_DG_CONTACTID) { 653 rdata->is_mt_collection = true; 654 break; 655 } 656 } 657 } 658 } 659 660 list_add_tail(&rdata->list, &td->reports); 661 662 return rdata; 663 } 664 665 static struct mt_report_data *mt_find_report_data(struct mt_device *td, 666 struct hid_report *report) 667 { 668 struct mt_report_data *tmp, *rdata = NULL; 669 670 list_for_each_entry(tmp, &td->reports, list) { 671 if (report == tmp->report) { 672 rdata = tmp; 673 break; 674 } 675 } 676 677 if (!rdata) 678 rdata = mt_allocate_report_data(td, report); 679 680 return rdata; 681 } 682 683 static void mt_store_field(struct hid_device *hdev, 684 struct mt_application *application, 685 __s32 *value, 686 size_t offset) 687 { 688 struct mt_usages *usage; 689 __s32 **target; 690 691 if (list_empty(&application->mt_usages)) 692 usage = mt_allocate_usage(hdev, application); 693 else 694 usage = list_last_entry(&application->mt_usages, 695 struct mt_usages, 696 list); 697 698 if (!usage) 699 return; 700 701 target = (__s32 **)((char *)usage + offset); 702 703 /* the value has already been filled, create a new slot */ 704 if (*target != DEFAULT_TRUE && 705 *target != DEFAULT_FALSE && 706 *target != DEFAULT_ZERO) { 707 if (usage->contactid == DEFAULT_ZERO || 708 usage->x == DEFAULT_ZERO || 709 usage->y == DEFAULT_ZERO) { 710 hid_dbg(hdev, 711 "ignoring duplicate usage on incomplete"); 712 return; 713 } 714 usage = mt_allocate_usage(hdev, application); 715 if (!usage) 716 return; 717 718 target = (__s32 **)((char *)usage + offset); 719 } 720 721 *target = value; 722 } 723 724 #define MT_STORE_FIELD(__name) \ 725 mt_store_field(hdev, app, \ 726 &field->value[usage->usage_index], \ 727 offsetof(struct mt_usages, __name)) 728 729 static int mt_touch_input_mapping(struct hid_device *hdev, struct hid_input *hi, 730 struct hid_field *field, struct hid_usage *usage, 731 unsigned long **bit, int *max, struct mt_application *app) 732 { 733 struct mt_device *td = hid_get_drvdata(hdev); 734 struct mt_class *cls = &td->mtclass; 735 int code; 736 struct hid_usage *prev_usage = NULL; 737 738 /* 739 * Model touchscreens providing buttons as touchpads. 740 */ 741 if (field->application == HID_DG_TOUCHSCREEN && 742 (usage->hid & HID_USAGE_PAGE) == HID_UP_BUTTON) { 743 app->mt_flags |= INPUT_MT_POINTER; 744 td->inputmode_value = MT_INPUTMODE_TOUCHPAD; 745 } 746 747 /* count the buttons on touchpads */ 748 if ((usage->hid & HID_USAGE_PAGE) == HID_UP_BUTTON) 749 app->buttons_count++; 750 751 if (usage->usage_index) 752 prev_usage = &field->usage[usage->usage_index - 1]; 753 754 switch (usage->hid & HID_USAGE_PAGE) { 755 756 case HID_UP_GENDESK: 757 switch (usage->hid) { 758 case HID_GD_X: 759 if (prev_usage && (prev_usage->hid == usage->hid)) { 760 code = ABS_MT_TOOL_X; 761 MT_STORE_FIELD(cx); 762 } else { 763 code = ABS_MT_POSITION_X; 764 MT_STORE_FIELD(x); 765 } 766 767 set_abs(hi->input, code, field, cls->sn_move); 768 769 /* 770 * A system multi-axis that exports X and Y has a high 771 * chance of being used directly on a surface 772 */ 773 if (field->application == HID_GD_SYSTEM_MULTIAXIS) { 774 __set_bit(INPUT_PROP_DIRECT, 775 hi->input->propbit); 776 input_set_abs_params(hi->input, 777 ABS_MT_TOOL_TYPE, 778 MT_TOOL_DIAL, 779 MT_TOOL_DIAL, 0, 0); 780 } 781 782 return 1; 783 case HID_GD_Y: 784 if (prev_usage && (prev_usage->hid == usage->hid)) { 785 code = ABS_MT_TOOL_Y; 786 MT_STORE_FIELD(cy); 787 } else { 788 code = ABS_MT_POSITION_Y; 789 MT_STORE_FIELD(y); 790 } 791 792 set_abs(hi->input, code, field, cls->sn_move); 793 794 return 1; 795 } 796 return 0; 797 798 case HID_UP_DIGITIZER: 799 switch (usage->hid) { 800 case HID_DG_INRANGE: 801 if (app->quirks & MT_QUIRK_HOVERING) { 802 input_set_abs_params(hi->input, 803 ABS_MT_DISTANCE, 0, 1, 0, 0); 804 } 805 MT_STORE_FIELD(inrange_state); 806 return 1; 807 case HID_DG_CONFIDENCE: 808 if ((cls->name == MT_CLS_WIN_8 || 809 cls->name == MT_CLS_WIN_8_FORCE_MULTI_INPUT || 810 cls->name == MT_CLS_WIN_8_FORCE_MULTI_INPUT_NSMU || 811 cls->name == MT_CLS_WIN_8_DISABLE_WAKEUP) && 812 (field->application == HID_DG_TOUCHPAD || 813 field->application == HID_DG_TOUCHSCREEN)) 814 app->quirks |= MT_QUIRK_CONFIDENCE; 815 816 if (app->quirks & MT_QUIRK_CONFIDENCE) 817 input_set_abs_params(hi->input, 818 ABS_MT_TOOL_TYPE, 819 MT_TOOL_FINGER, 820 MT_TOOL_PALM, 0, 0); 821 822 MT_STORE_FIELD(confidence_state); 823 return 1; 824 case HID_DG_TIPSWITCH: 825 if (field->application != HID_GD_SYSTEM_MULTIAXIS) 826 input_set_capability(hi->input, 827 EV_KEY, BTN_TOUCH); 828 MT_STORE_FIELD(tip_state); 829 return 1; 830 case HID_DG_CONTACTID: 831 MT_STORE_FIELD(contactid); 832 app->touches_by_report++; 833 return 1; 834 case HID_DG_WIDTH: 835 if (!(app->quirks & MT_QUIRK_NO_AREA)) 836 set_abs(hi->input, ABS_MT_TOUCH_MAJOR, field, 837 cls->sn_width); 838 MT_STORE_FIELD(w); 839 return 1; 840 case HID_DG_HEIGHT: 841 if (!(app->quirks & MT_QUIRK_NO_AREA)) { 842 set_abs(hi->input, ABS_MT_TOUCH_MINOR, field, 843 cls->sn_height); 844 845 /* 846 * Only set ABS_MT_ORIENTATION if it is not 847 * already set by the HID_DG_AZIMUTH usage. 848 */ 849 if (!test_bit(ABS_MT_ORIENTATION, 850 hi->input->absbit)) 851 input_set_abs_params(hi->input, 852 ABS_MT_ORIENTATION, 0, 1, 0, 0); 853 } 854 MT_STORE_FIELD(h); 855 return 1; 856 case HID_DG_TIPPRESSURE: 857 set_abs(hi->input, ABS_MT_PRESSURE, field, 858 cls->sn_pressure); 859 MT_STORE_FIELD(p); 860 return 1; 861 case HID_DG_SCANTIME: 862 input_set_capability(hi->input, EV_MSC, MSC_TIMESTAMP); 863 app->scantime = &field->value[usage->usage_index]; 864 app->scantime_logical_max = field->logical_maximum; 865 return 1; 866 case HID_DG_CONTACTCOUNT: 867 app->have_contact_count = true; 868 app->raw_cc = &field->value[usage->usage_index]; 869 return 1; 870 case HID_DG_AZIMUTH: 871 /* 872 * Azimuth has the range of [0, MAX) representing a full 873 * revolution. Set ABS_MT_ORIENTATION to a quarter of 874 * MAX according the definition of ABS_MT_ORIENTATION 875 */ 876 input_set_abs_params(hi->input, ABS_MT_ORIENTATION, 877 -field->logical_maximum / 4, 878 field->logical_maximum / 4, 879 cls->sn_move ? 880 field->logical_maximum / cls->sn_move : 0, 0); 881 MT_STORE_FIELD(a); 882 return 1; 883 case HID_DG_CONTACTMAX: 884 /* contact max are global to the report */ 885 return -1; 886 case HID_DG_TOUCH: 887 /* Legacy devices use TIPSWITCH and not TOUCH. 888 * Let's just ignore this field. */ 889 return -1; 890 } 891 /* let hid-input decide for the others */ 892 return 0; 893 894 case HID_UP_BUTTON: 895 code = BTN_MOUSE + ((usage->hid - 1) & HID_USAGE); 896 /* 897 * MS PTP spec says that external buttons left and right have 898 * usages 2 and 3. 899 */ 900 if ((app->quirks & MT_QUIRK_WIN8_PTP_BUTTONS) && 901 field->application == HID_DG_TOUCHPAD && 902 (usage->hid & HID_USAGE) > 1) 903 code--; 904 905 if (field->application == HID_GD_SYSTEM_MULTIAXIS) 906 code = BTN_0 + ((usage->hid - 1) & HID_USAGE); 907 908 hid_map_usage(hi, usage, bit, max, EV_KEY, code); 909 if (!*bit) 910 return -1; 911 input_set_capability(hi->input, EV_KEY, code); 912 return 1; 913 914 case 0xff000000: 915 /* we do not want to map these: no input-oriented meaning */ 916 return -1; 917 } 918 919 return 0; 920 } 921 922 static int mt_compute_slot(struct mt_device *td, struct mt_application *app, 923 struct mt_usages *slot, 924 struct input_dev *input) 925 { 926 __s32 quirks = app->quirks; 927 928 if (quirks & MT_QUIRK_SLOT_IS_CONTACTID) 929 return *slot->contactid; 930 931 if (quirks & MT_QUIRK_CYPRESS) 932 return cypress_compute_slot(app, slot); 933 934 if (quirks & MT_QUIRK_SLOT_IS_CONTACTNUMBER) 935 return app->num_received; 936 937 if (quirks & MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE) 938 return *slot->contactid - 1; 939 940 return input_mt_get_slot_by_key(input, *slot->contactid); 941 } 942 943 static void mt_release_pending_palms(struct mt_device *td, 944 struct mt_application *app, 945 struct input_dev *input) 946 { 947 int slotnum; 948 bool need_sync = false; 949 950 for_each_set_bit(slotnum, app->pending_palm_slots, td->maxcontacts) { 951 clear_bit(slotnum, app->pending_palm_slots); 952 953 input_mt_slot(input, slotnum); 954 input_mt_report_slot_inactive(input); 955 956 need_sync = true; 957 } 958 959 if (need_sync) { 960 input_mt_sync_frame(input); 961 input_sync(input); 962 } 963 } 964 965 /* 966 * this function is called when a whole packet has been received and processed, 967 * so that it can decide what to send to the input layer. 968 */ 969 static void mt_sync_frame(struct mt_device *td, struct mt_application *app, 970 struct input_dev *input) 971 { 972 if (app->quirks & MT_QUIRK_WIN8_PTP_BUTTONS) 973 input_event(input, EV_KEY, BTN_LEFT, app->left_button_state); 974 975 input_mt_sync_frame(input); 976 input_event(input, EV_MSC, MSC_TIMESTAMP, app->timestamp); 977 input_sync(input); 978 979 mt_release_pending_palms(td, app, input); 980 981 app->num_received = 0; 982 app->left_button_state = 0; 983 984 if (test_bit(MT_IO_FLAGS_ACTIVE_SLOTS, &td->mt_io_flags)) 985 set_bit(MT_IO_FLAGS_PENDING_SLOTS, &td->mt_io_flags); 986 else 987 clear_bit(MT_IO_FLAGS_PENDING_SLOTS, &td->mt_io_flags); 988 clear_bit(MT_IO_FLAGS_ACTIVE_SLOTS, &td->mt_io_flags); 989 } 990 991 static int mt_compute_timestamp(struct mt_application *app, __s32 value) 992 { 993 long delta = value - app->prev_scantime; 994 unsigned long jdelta = jiffies_to_usecs(jiffies - app->jiffies); 995 996 app->jiffies = jiffies; 997 998 if (delta < 0) 999 delta += app->scantime_logical_max; 1000 1001 /* HID_DG_SCANTIME is expressed in 100us, we want it in us. */ 1002 delta *= 100; 1003 1004 if (jdelta > MAX_TIMESTAMP_INTERVAL) 1005 /* No data received for a while, resync the timestamp. */ 1006 return 0; 1007 else 1008 return app->timestamp + delta; 1009 } 1010 1011 static int mt_touch_event(struct hid_device *hid, struct hid_field *field, 1012 struct hid_usage *usage, __s32 value) 1013 { 1014 /* we will handle the hidinput part later, now remains hiddev */ 1015 if (hid->claimed & HID_CLAIMED_HIDDEV && hid->hiddev_hid_event) 1016 hid->hiddev_hid_event(hid, field, usage, value); 1017 1018 return 1; 1019 } 1020 1021 static int mt_process_slot(struct mt_device *td, struct input_dev *input, 1022 struct mt_application *app, 1023 struct mt_usages *slot) 1024 { 1025 struct input_mt *mt = input->mt; 1026 struct hid_device *hdev = td->hdev; 1027 __s32 quirks = app->quirks; 1028 bool valid = true; 1029 bool confidence_state = true; 1030 bool inrange_state = false; 1031 int active; 1032 int slotnum; 1033 int tool = MT_TOOL_FINGER; 1034 1035 if (!slot) 1036 return -EINVAL; 1037 1038 if ((quirks & MT_QUIRK_CONTACT_CNT_ACCURATE) && 1039 app->num_received >= app->num_expected) 1040 return -EAGAIN; 1041 1042 if (!(quirks & MT_QUIRK_ALWAYS_VALID)) { 1043 if (quirks & MT_QUIRK_VALID_IS_INRANGE) 1044 valid = *slot->inrange_state; 1045 if (quirks & MT_QUIRK_NOT_SEEN_MEANS_UP) 1046 valid = *slot->tip_state; 1047 if (quirks & MT_QUIRK_VALID_IS_CONFIDENCE) 1048 valid = *slot->confidence_state; 1049 1050 if (!valid) 1051 return 0; 1052 } 1053 1054 slotnum = mt_compute_slot(td, app, slot, input); 1055 if (slotnum < 0 || slotnum >= td->maxcontacts) 1056 return 0; 1057 1058 if ((quirks & MT_QUIRK_IGNORE_DUPLICATES) && mt) { 1059 struct input_mt_slot *i_slot = &mt->slots[slotnum]; 1060 1061 if (input_mt_is_active(i_slot) && 1062 input_mt_is_used(mt, i_slot)) 1063 return -EAGAIN; 1064 } 1065 1066 if (quirks & MT_QUIRK_CONFIDENCE) 1067 confidence_state = *slot->confidence_state; 1068 1069 if (quirks & MT_QUIRK_HOVERING) 1070 inrange_state = *slot->inrange_state; 1071 1072 active = *slot->tip_state || inrange_state; 1073 1074 if (app->application == HID_GD_SYSTEM_MULTIAXIS) 1075 tool = MT_TOOL_DIAL; 1076 else if (unlikely(!confidence_state)) { 1077 tool = MT_TOOL_PALM; 1078 if (!active && mt && 1079 input_mt_is_active(&mt->slots[slotnum])) { 1080 /* 1081 * The non-confidence was reported for 1082 * previously valid contact that is also no 1083 * longer valid. We can't simply report 1084 * lift-off as userspace will not be aware 1085 * of non-confidence, so we need to split 1086 * it into 2 events: active MT_TOOL_PALM 1087 * and a separate liftoff. 1088 */ 1089 active = true; 1090 set_bit(slotnum, app->pending_palm_slots); 1091 } 1092 } 1093 1094 input_mt_slot(input, slotnum); 1095 input_mt_report_slot_state(input, tool, active); 1096 if (active) { 1097 /* this finger is in proximity of the sensor */ 1098 int wide = (*slot->w > *slot->h); 1099 int major = max(*slot->w, *slot->h); 1100 int minor = min(*slot->w, *slot->h); 1101 int orientation = wide; 1102 int max_azimuth; 1103 int azimuth; 1104 int x; 1105 int y; 1106 int cx; 1107 int cy; 1108 1109 if (slot->a != DEFAULT_ZERO) { 1110 /* 1111 * Azimuth is counter-clockwise and ranges from [0, MAX) 1112 * (a full revolution). Convert it to clockwise ranging 1113 * [-MAX/2, MAX/2]. 1114 * 1115 * Note that ABS_MT_ORIENTATION require us to report 1116 * the limit of [-MAX/4, MAX/4], but the value can go 1117 * out of range to [-MAX/2, MAX/2] to report an upside 1118 * down ellipsis. 1119 */ 1120 azimuth = *slot->a; 1121 max_azimuth = input_abs_get_max(input, 1122 ABS_MT_ORIENTATION); 1123 if (azimuth > max_azimuth * 2) 1124 azimuth -= max_azimuth * 4; 1125 orientation = -azimuth; 1126 if (quirks & MT_QUIRK_ORIENTATION_INVERT) 1127 orientation = -orientation; 1128 1129 } 1130 1131 if (quirks & MT_QUIRK_TOUCH_SIZE_SCALING) { 1132 /* 1133 * divided by two to match visual scale of touch 1134 * for devices with this quirk 1135 */ 1136 major = major >> 1; 1137 minor = minor >> 1; 1138 } 1139 1140 x = hdev->quirks & HID_QUIRK_X_INVERT ? 1141 input_abs_get_max(input, ABS_MT_POSITION_X) - *slot->x : 1142 *slot->x; 1143 y = hdev->quirks & HID_QUIRK_Y_INVERT ? 1144 input_abs_get_max(input, ABS_MT_POSITION_Y) - *slot->y : 1145 *slot->y; 1146 cx = hdev->quirks & HID_QUIRK_X_INVERT ? 1147 input_abs_get_max(input, ABS_MT_POSITION_X) - *slot->cx : 1148 *slot->cx; 1149 cy = hdev->quirks & HID_QUIRK_Y_INVERT ? 1150 input_abs_get_max(input, ABS_MT_POSITION_Y) - *slot->cy : 1151 *slot->cy; 1152 1153 input_event(input, EV_ABS, ABS_MT_POSITION_X, x); 1154 input_event(input, EV_ABS, ABS_MT_POSITION_Y, y); 1155 input_event(input, EV_ABS, ABS_MT_TOOL_X, cx); 1156 input_event(input, EV_ABS, ABS_MT_TOOL_Y, cy); 1157 input_event(input, EV_ABS, ABS_MT_DISTANCE, !*slot->tip_state); 1158 input_event(input, EV_ABS, ABS_MT_ORIENTATION, orientation); 1159 input_event(input, EV_ABS, ABS_MT_PRESSURE, *slot->p); 1160 input_event(input, EV_ABS, ABS_MT_TOUCH_MAJOR, major); 1161 input_event(input, EV_ABS, ABS_MT_TOUCH_MINOR, minor); 1162 1163 set_bit(MT_IO_FLAGS_ACTIVE_SLOTS, &td->mt_io_flags); 1164 } 1165 1166 return 0; 1167 } 1168 1169 static void mt_process_mt_event(struct hid_device *hid, 1170 struct mt_application *app, 1171 struct hid_field *field, 1172 struct hid_usage *usage, 1173 __s32 value, 1174 bool first_packet) 1175 { 1176 __s32 quirks = app->quirks; 1177 struct input_dev *input = field->hidinput->input; 1178 1179 if (!usage->type || !(hid->claimed & HID_CLAIMED_INPUT)) 1180 return; 1181 1182 if (quirks & MT_QUIRK_WIN8_PTP_BUTTONS) { 1183 1184 /* 1185 * For Win8 PTP touchpads we should only look at 1186 * non finger/touch events in the first_packet of a 1187 * (possible) multi-packet frame. 1188 */ 1189 if (!first_packet) 1190 return; 1191 1192 /* 1193 * For Win8 PTP touchpads we map both the clickpad click 1194 * and any "external" left buttons to BTN_LEFT if a 1195 * device claims to have both we need to report 1 for 1196 * BTN_LEFT if either is pressed, so we or all values 1197 * together and report the result in mt_sync_frame(). 1198 */ 1199 if (usage->type == EV_KEY && usage->code == BTN_LEFT) { 1200 app->left_button_state |= value; 1201 return; 1202 } 1203 } 1204 1205 input_event(input, usage->type, usage->code, value); 1206 } 1207 1208 static void mt_touch_report(struct hid_device *hid, 1209 struct mt_report_data *rdata) 1210 { 1211 struct mt_device *td = hid_get_drvdata(hid); 1212 struct hid_report *report = rdata->report; 1213 struct mt_application *app = rdata->application; 1214 struct hid_field *field; 1215 struct input_dev *input; 1216 struct mt_usages *slot; 1217 bool first_packet; 1218 unsigned count; 1219 int r, n; 1220 int scantime = 0; 1221 int contact_count = -1; 1222 1223 /* sticky fingers release in progress, abort */ 1224 if (test_and_set_bit_lock(MT_IO_FLAGS_RUNNING, &td->mt_io_flags)) 1225 return; 1226 1227 scantime = *app->scantime; 1228 app->timestamp = mt_compute_timestamp(app, scantime); 1229 if (app->raw_cc != DEFAULT_ZERO) 1230 contact_count = *app->raw_cc; 1231 1232 /* 1233 * Includes multi-packet support where subsequent 1234 * packets are sent with zero contactcount. 1235 */ 1236 if (contact_count >= 0) { 1237 /* 1238 * For Win8 PTPs the first packet (td->num_received == 0) may 1239 * have a contactcount of 0 if there only is a button event. 1240 * We double check that this is not a continuation packet 1241 * of a possible multi-packet frame be checking that the 1242 * timestamp has changed. 1243 */ 1244 if ((app->quirks & MT_QUIRK_WIN8_PTP_BUTTONS) && 1245 app->num_received == 0 && 1246 app->prev_scantime != scantime) 1247 app->num_expected = contact_count; 1248 /* A non 0 contact count always indicates a first packet */ 1249 else if (contact_count) 1250 app->num_expected = contact_count; 1251 } 1252 app->prev_scantime = scantime; 1253 1254 first_packet = app->num_received == 0; 1255 1256 input = report->field[0]->hidinput->input; 1257 1258 list_for_each_entry(slot, &app->mt_usages, list) { 1259 if (!mt_process_slot(td, input, app, slot)) 1260 app->num_received++; 1261 } 1262 1263 for (r = 0; r < report->maxfield; r++) { 1264 field = report->field[r]; 1265 count = field->report_count; 1266 1267 if (!(HID_MAIN_ITEM_VARIABLE & field->flags)) 1268 continue; 1269 1270 for (n = 0; n < count; n++) 1271 mt_process_mt_event(hid, app, field, 1272 &field->usage[n], field->value[n], 1273 first_packet); 1274 } 1275 1276 if (app->num_received >= app->num_expected) 1277 mt_sync_frame(td, app, input); 1278 1279 /* 1280 * Windows 8 specs says 2 things: 1281 * - once a contact has been reported, it has to be reported in each 1282 * subsequent report 1283 * - the report rate when fingers are present has to be at least 1284 * the refresh rate of the screen, 60 or 120 Hz 1285 * 1286 * I interprete this that the specification forces a report rate of 1287 * at least 60 Hz for a touchscreen to be certified. 1288 * Which means that if we do not get a report whithin 16 ms, either 1289 * something wrong happens, either the touchscreen forgets to send 1290 * a release. Taking a reasonable margin allows to remove issues 1291 * with USB communication or the load of the machine. 1292 * 1293 * Given that Win 8 devices are forced to send a release, this will 1294 * only affect laggish machines and the ones that have a firmware 1295 * defect. 1296 */ 1297 if (app->quirks & MT_QUIRK_STICKY_FINGERS) { 1298 if (test_bit(MT_IO_FLAGS_PENDING_SLOTS, &td->mt_io_flags)) 1299 mod_timer(&td->release_timer, 1300 jiffies + msecs_to_jiffies(100)); 1301 else 1302 del_timer(&td->release_timer); 1303 } 1304 1305 clear_bit_unlock(MT_IO_FLAGS_RUNNING, &td->mt_io_flags); 1306 } 1307 1308 static int mt_touch_input_configured(struct hid_device *hdev, 1309 struct hid_input *hi, 1310 struct mt_application *app) 1311 { 1312 struct mt_device *td = hid_get_drvdata(hdev); 1313 struct mt_class *cls = &td->mtclass; 1314 struct input_dev *input = hi->input; 1315 int ret; 1316 1317 if (!td->maxcontacts) 1318 td->maxcontacts = MT_DEFAULT_MAXCONTACT; 1319 1320 mt_post_parse(td, app); 1321 if (td->serial_maybe) 1322 mt_post_parse_default_settings(td, app); 1323 1324 if (cls->is_indirect) 1325 app->mt_flags |= INPUT_MT_POINTER; 1326 1327 if (app->quirks & MT_QUIRK_NOT_SEEN_MEANS_UP) 1328 app->mt_flags |= INPUT_MT_DROP_UNUSED; 1329 1330 /* check for clickpads */ 1331 if ((app->mt_flags & INPUT_MT_POINTER) && 1332 (app->buttons_count == 1)) 1333 td->is_buttonpad = true; 1334 1335 if (td->is_buttonpad) 1336 __set_bit(INPUT_PROP_BUTTONPAD, input->propbit); 1337 1338 app->pending_palm_slots = devm_kcalloc(&hi->input->dev, 1339 BITS_TO_LONGS(td->maxcontacts), 1340 sizeof(long), 1341 GFP_KERNEL); 1342 if (!app->pending_palm_slots) 1343 return -ENOMEM; 1344 1345 ret = input_mt_init_slots(input, td->maxcontacts, app->mt_flags); 1346 if (ret) 1347 return ret; 1348 1349 app->mt_flags = 0; 1350 return 0; 1351 } 1352 1353 #define mt_map_key_clear(c) hid_map_usage_clear(hi, usage, bit, \ 1354 max, EV_KEY, (c)) 1355 static int mt_input_mapping(struct hid_device *hdev, struct hid_input *hi, 1356 struct hid_field *field, struct hid_usage *usage, 1357 unsigned long **bit, int *max) 1358 { 1359 struct mt_device *td = hid_get_drvdata(hdev); 1360 struct mt_application *application; 1361 struct mt_report_data *rdata; 1362 1363 rdata = mt_find_report_data(td, field->report); 1364 if (!rdata) { 1365 hid_err(hdev, "failed to allocate data for report\n"); 1366 return 0; 1367 } 1368 1369 application = rdata->application; 1370 1371 /* 1372 * If mtclass.export_all_inputs is not set, only map fields from 1373 * TouchScreen or TouchPad collections. We need to ignore fields 1374 * that belong to other collections such as Mouse that might have 1375 * the same GenericDesktop usages. 1376 */ 1377 if (!td->mtclass.export_all_inputs && 1378 field->application != HID_DG_TOUCHSCREEN && 1379 field->application != HID_DG_PEN && 1380 field->application != HID_DG_TOUCHPAD && 1381 field->application != HID_GD_KEYBOARD && 1382 field->application != HID_GD_SYSTEM_CONTROL && 1383 field->application != HID_CP_CONSUMER_CONTROL && 1384 field->application != HID_GD_WIRELESS_RADIO_CTLS && 1385 field->application != HID_GD_SYSTEM_MULTIAXIS && 1386 !(field->application == HID_VD_ASUS_CUSTOM_MEDIA_KEYS && 1387 application->quirks & MT_QUIRK_ASUS_CUSTOM_UP)) 1388 return -1; 1389 1390 /* 1391 * Some Asus keyboard+touchpad devices have the hotkeys defined in the 1392 * touchpad report descriptor. We need to treat these as an array to 1393 * map usages to input keys. 1394 */ 1395 if (field->application == HID_VD_ASUS_CUSTOM_MEDIA_KEYS && 1396 application->quirks & MT_QUIRK_ASUS_CUSTOM_UP && 1397 (usage->hid & HID_USAGE_PAGE) == HID_UP_CUSTOM) { 1398 set_bit(EV_REP, hi->input->evbit); 1399 if (field->flags & HID_MAIN_ITEM_VARIABLE) 1400 field->flags &= ~HID_MAIN_ITEM_VARIABLE; 1401 switch (usage->hid & HID_USAGE) { 1402 case 0x10: mt_map_key_clear(KEY_BRIGHTNESSDOWN); break; 1403 case 0x20: mt_map_key_clear(KEY_BRIGHTNESSUP); break; 1404 case 0x35: mt_map_key_clear(KEY_DISPLAY_OFF); break; 1405 case 0x6b: mt_map_key_clear(KEY_F21); break; 1406 case 0x6c: mt_map_key_clear(KEY_SLEEP); break; 1407 default: 1408 return -1; 1409 } 1410 return 1; 1411 } 1412 1413 if (rdata->is_mt_collection) 1414 return mt_touch_input_mapping(hdev, hi, field, usage, bit, max, 1415 application); 1416 1417 /* 1418 * some egalax touchscreens have "application == DG_TOUCHSCREEN" 1419 * for the stylus. Overwrite the hid_input application 1420 */ 1421 if (field->physical == HID_DG_STYLUS) 1422 hi->application = HID_DG_STYLUS; 1423 1424 /* let hid-core decide for the others */ 1425 return 0; 1426 } 1427 1428 static int mt_input_mapped(struct hid_device *hdev, struct hid_input *hi, 1429 struct hid_field *field, struct hid_usage *usage, 1430 unsigned long **bit, int *max) 1431 { 1432 struct mt_device *td = hid_get_drvdata(hdev); 1433 struct mt_report_data *rdata; 1434 1435 rdata = mt_find_report_data(td, field->report); 1436 if (rdata && rdata->is_mt_collection) { 1437 /* We own these mappings, tell hid-input to ignore them */ 1438 return -1; 1439 } 1440 1441 /* let hid-core decide for the others */ 1442 return 0; 1443 } 1444 1445 static int mt_event(struct hid_device *hid, struct hid_field *field, 1446 struct hid_usage *usage, __s32 value) 1447 { 1448 struct mt_device *td = hid_get_drvdata(hid); 1449 struct mt_report_data *rdata; 1450 1451 rdata = mt_find_report_data(td, field->report); 1452 if (rdata && rdata->is_mt_collection) 1453 return mt_touch_event(hid, field, usage, value); 1454 1455 return 0; 1456 } 1457 1458 static const __u8 *mt_report_fixup(struct hid_device *hdev, __u8 *rdesc, 1459 unsigned int *size) 1460 { 1461 if (hdev->vendor == I2C_VENDOR_ID_GOODIX && 1462 (hdev->product == I2C_DEVICE_ID_GOODIX_01E8 || 1463 hdev->product == I2C_DEVICE_ID_GOODIX_01E9 || 1464 hdev->product == I2C_DEVICE_ID_GOODIX_01E0)) { 1465 if (rdesc[607] == 0x15) { 1466 rdesc[607] = 0x25; 1467 dev_info( 1468 &hdev->dev, 1469 "GT7868Q report descriptor fixup is applied.\n"); 1470 } else { 1471 dev_info( 1472 &hdev->dev, 1473 "The byte is not expected for fixing the report descriptor. \ 1474 It's possible that the touchpad firmware is not suitable for applying the fix. \ 1475 got: %x\n", 1476 rdesc[607]); 1477 } 1478 } 1479 1480 return rdesc; 1481 } 1482 1483 static void mt_report(struct hid_device *hid, struct hid_report *report) 1484 { 1485 struct mt_device *td = hid_get_drvdata(hid); 1486 struct hid_field *field = report->field[0]; 1487 struct mt_report_data *rdata; 1488 1489 if (!(hid->claimed & HID_CLAIMED_INPUT)) 1490 return; 1491 1492 rdata = mt_find_report_data(td, report); 1493 if (rdata && rdata->is_mt_collection) 1494 return mt_touch_report(hid, rdata); 1495 1496 if (field && field->hidinput && field->hidinput->input) 1497 input_sync(field->hidinput->input); 1498 } 1499 1500 static bool mt_need_to_apply_feature(struct hid_device *hdev, 1501 struct hid_field *field, 1502 struct hid_usage *usage, 1503 enum latency_mode latency, 1504 enum report_mode report_mode, 1505 bool *inputmode_found) 1506 { 1507 struct mt_device *td = hid_get_drvdata(hdev); 1508 struct mt_class *cls = &td->mtclass; 1509 struct hid_report *report = field->report; 1510 unsigned int index = usage->usage_index; 1511 char *buf; 1512 u32 report_len; 1513 int max; 1514 1515 switch (usage->hid) { 1516 case HID_DG_INPUTMODE: 1517 /* 1518 * Some elan panels wrongly declare 2 input mode features, 1519 * and silently ignore when we set the value in the second 1520 * field. Skip the second feature and hope for the best. 1521 */ 1522 if (*inputmode_found) 1523 return false; 1524 1525 if (cls->quirks & MT_QUIRK_FORCE_GET_FEATURE) { 1526 report_len = hid_report_len(report); 1527 buf = hid_alloc_report_buf(report, GFP_KERNEL); 1528 if (!buf) { 1529 hid_err(hdev, 1530 "failed to allocate buffer for report\n"); 1531 return false; 1532 } 1533 hid_hw_raw_request(hdev, report->id, buf, report_len, 1534 HID_FEATURE_REPORT, 1535 HID_REQ_GET_REPORT); 1536 kfree(buf); 1537 } 1538 1539 field->value[index] = td->inputmode_value; 1540 *inputmode_found = true; 1541 return true; 1542 1543 case HID_DG_CONTACTMAX: 1544 if (cls->maxcontacts) { 1545 max = min_t(int, field->logical_maximum, 1546 cls->maxcontacts); 1547 if (field->value[index] != max) { 1548 field->value[index] = max; 1549 return true; 1550 } 1551 } 1552 break; 1553 1554 case HID_DG_LATENCYMODE: 1555 field->value[index] = latency; 1556 return true; 1557 1558 case HID_DG_SURFACESWITCH: 1559 field->value[index] = !!(report_mode & TOUCHPAD_REPORT_CONTACTS); 1560 return true; 1561 1562 case HID_DG_BUTTONSWITCH: 1563 field->value[index] = !!(report_mode & TOUCHPAD_REPORT_BUTTONS); 1564 return true; 1565 } 1566 1567 return false; /* no need to update the report */ 1568 } 1569 1570 static void mt_set_modes(struct hid_device *hdev, enum latency_mode latency, 1571 enum report_mode report_mode) 1572 { 1573 struct hid_report_enum *rep_enum; 1574 struct hid_report *rep; 1575 struct hid_usage *usage; 1576 int i, j; 1577 bool update_report; 1578 bool inputmode_found = false; 1579 1580 rep_enum = &hdev->report_enum[HID_FEATURE_REPORT]; 1581 list_for_each_entry(rep, &rep_enum->report_list, list) { 1582 update_report = false; 1583 1584 for (i = 0; i < rep->maxfield; i++) { 1585 /* Ignore if report count is out of bounds. */ 1586 if (rep->field[i]->report_count < 1) 1587 continue; 1588 1589 for (j = 0; j < rep->field[i]->maxusage; j++) { 1590 usage = &rep->field[i]->usage[j]; 1591 1592 if (mt_need_to_apply_feature(hdev, 1593 rep->field[i], 1594 usage, 1595 latency, 1596 report_mode, 1597 &inputmode_found)) 1598 update_report = true; 1599 } 1600 } 1601 1602 if (update_report) 1603 hid_hw_request(hdev, rep, HID_REQ_SET_REPORT); 1604 } 1605 } 1606 1607 static void mt_post_parse_default_settings(struct mt_device *td, 1608 struct mt_application *app) 1609 { 1610 __s32 quirks = app->quirks; 1611 1612 /* unknown serial device needs special quirks */ 1613 if (list_is_singular(&app->mt_usages)) { 1614 quirks |= MT_QUIRK_ALWAYS_VALID; 1615 quirks &= ~MT_QUIRK_NOT_SEEN_MEANS_UP; 1616 quirks &= ~MT_QUIRK_VALID_IS_INRANGE; 1617 quirks &= ~MT_QUIRK_VALID_IS_CONFIDENCE; 1618 quirks &= ~MT_QUIRK_CONTACT_CNT_ACCURATE; 1619 } 1620 1621 app->quirks = quirks; 1622 } 1623 1624 static void mt_post_parse(struct mt_device *td, struct mt_application *app) 1625 { 1626 if (!app->have_contact_count) 1627 app->quirks &= ~MT_QUIRK_CONTACT_CNT_ACCURATE; 1628 } 1629 1630 static int mt_input_configured(struct hid_device *hdev, struct hid_input *hi) 1631 { 1632 struct mt_device *td = hid_get_drvdata(hdev); 1633 const char *suffix = NULL; 1634 struct mt_report_data *rdata; 1635 struct mt_application *mt_application = NULL; 1636 struct hid_report *report; 1637 int ret; 1638 1639 list_for_each_entry(report, &hi->reports, hidinput_list) { 1640 rdata = mt_find_report_data(td, report); 1641 if (!rdata) { 1642 hid_err(hdev, "failed to allocate data for report\n"); 1643 return -ENOMEM; 1644 } 1645 1646 mt_application = rdata->application; 1647 1648 if (rdata->is_mt_collection) { 1649 ret = mt_touch_input_configured(hdev, hi, 1650 mt_application); 1651 if (ret) 1652 return ret; 1653 } 1654 } 1655 1656 switch (hi->application) { 1657 case HID_GD_KEYBOARD: 1658 case HID_GD_KEYPAD: 1659 case HID_GD_MOUSE: 1660 case HID_DG_TOUCHPAD: 1661 case HID_GD_SYSTEM_CONTROL: 1662 case HID_CP_CONSUMER_CONTROL: 1663 case HID_GD_WIRELESS_RADIO_CTLS: 1664 case HID_GD_SYSTEM_MULTIAXIS: 1665 /* already handled by hid core */ 1666 break; 1667 case HID_DG_TOUCHSCREEN: 1668 /* we do not set suffix = "Touchscreen" */ 1669 hi->input->name = hdev->name; 1670 break; 1671 case HID_VD_ASUS_CUSTOM_MEDIA_KEYS: 1672 suffix = "Custom Media Keys"; 1673 break; 1674 case HID_DG_STYLUS: 1675 /* force BTN_STYLUS to allow tablet matching in udev */ 1676 __set_bit(BTN_STYLUS, hi->input->keybit); 1677 break; 1678 default: 1679 suffix = "UNKNOWN"; 1680 break; 1681 } 1682 1683 if (suffix) 1684 hi->input->name = devm_kasprintf(&hdev->dev, GFP_KERNEL, 1685 "%s %s", hdev->name, suffix); 1686 1687 return 0; 1688 } 1689 1690 static void mt_fix_const_field(struct hid_field *field, unsigned int usage) 1691 { 1692 if (field->usage[0].hid != usage || 1693 !(field->flags & HID_MAIN_ITEM_CONSTANT)) 1694 return; 1695 1696 field->flags &= ~HID_MAIN_ITEM_CONSTANT; 1697 field->flags |= HID_MAIN_ITEM_VARIABLE; 1698 } 1699 1700 static void mt_fix_const_fields(struct hid_device *hdev, unsigned int usage) 1701 { 1702 struct hid_report *report; 1703 int i; 1704 1705 list_for_each_entry(report, 1706 &hdev->report_enum[HID_INPUT_REPORT].report_list, 1707 list) { 1708 1709 if (!report->maxfield) 1710 continue; 1711 1712 for (i = 0; i < report->maxfield; i++) 1713 if (report->field[i]->maxusage >= 1) 1714 mt_fix_const_field(report->field[i], usage); 1715 } 1716 } 1717 1718 static void mt_release_contacts(struct hid_device *hid) 1719 { 1720 struct hid_input *hidinput; 1721 struct mt_application *application; 1722 struct mt_device *td = hid_get_drvdata(hid); 1723 1724 list_for_each_entry(hidinput, &hid->inputs, list) { 1725 struct input_dev *input_dev = hidinput->input; 1726 struct input_mt *mt = input_dev->mt; 1727 int i; 1728 1729 if (mt) { 1730 for (i = 0; i < mt->num_slots; i++) { 1731 input_mt_slot(input_dev, i); 1732 input_mt_report_slot_inactive(input_dev); 1733 } 1734 input_mt_sync_frame(input_dev); 1735 input_sync(input_dev); 1736 } 1737 } 1738 1739 list_for_each_entry(application, &td->applications, list) { 1740 application->num_received = 0; 1741 } 1742 } 1743 1744 static void mt_expired_timeout(struct timer_list *t) 1745 { 1746 struct mt_device *td = from_timer(td, t, release_timer); 1747 struct hid_device *hdev = td->hdev; 1748 1749 /* 1750 * An input report came in just before we release the sticky fingers, 1751 * it will take care of the sticky fingers. 1752 */ 1753 if (test_and_set_bit_lock(MT_IO_FLAGS_RUNNING, &td->mt_io_flags)) 1754 return; 1755 if (test_bit(MT_IO_FLAGS_PENDING_SLOTS, &td->mt_io_flags)) 1756 mt_release_contacts(hdev); 1757 clear_bit_unlock(MT_IO_FLAGS_RUNNING, &td->mt_io_flags); 1758 } 1759 1760 static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id) 1761 { 1762 int ret, i; 1763 struct mt_device *td; 1764 const struct mt_class *mtclass = mt_classes; /* MT_CLS_DEFAULT */ 1765 1766 for (i = 0; mt_classes[i].name ; i++) { 1767 if (id->driver_data == mt_classes[i].name) { 1768 mtclass = &(mt_classes[i]); 1769 break; 1770 } 1771 } 1772 1773 td = devm_kzalloc(&hdev->dev, sizeof(struct mt_device), GFP_KERNEL); 1774 if (!td) { 1775 dev_err(&hdev->dev, "cannot allocate multitouch data\n"); 1776 return -ENOMEM; 1777 } 1778 td->hdev = hdev; 1779 td->mtclass = *mtclass; 1780 td->inputmode_value = MT_INPUTMODE_TOUCHSCREEN; 1781 hid_set_drvdata(hdev, td); 1782 1783 INIT_LIST_HEAD(&td->applications); 1784 INIT_LIST_HEAD(&td->reports); 1785 1786 if (id->vendor == HID_ANY_ID && id->product == HID_ANY_ID) 1787 td->serial_maybe = true; 1788 1789 1790 /* Orientation is inverted if the X or Y axes are 1791 * flipped, but normalized if both are inverted. 1792 */ 1793 if (hdev->quirks & (HID_QUIRK_X_INVERT | HID_QUIRK_Y_INVERT) && 1794 !((hdev->quirks & HID_QUIRK_X_INVERT) 1795 && (hdev->quirks & HID_QUIRK_Y_INVERT))) 1796 td->mtclass.quirks = MT_QUIRK_ORIENTATION_INVERT; 1797 1798 /* This allows the driver to correctly support devices 1799 * that emit events over several HID messages. 1800 */ 1801 hdev->quirks |= HID_QUIRK_NO_INPUT_SYNC; 1802 1803 /* 1804 * This allows the driver to handle different input sensors 1805 * that emits events through different applications on the same HID 1806 * device. 1807 */ 1808 hdev->quirks |= HID_QUIRK_INPUT_PER_APP; 1809 1810 if (id->group != HID_GROUP_MULTITOUCH_WIN_8) 1811 hdev->quirks |= HID_QUIRK_MULTI_INPUT; 1812 1813 if (mtclass->quirks & MT_QUIRK_FORCE_MULTI_INPUT) { 1814 hdev->quirks &= ~HID_QUIRK_INPUT_PER_APP; 1815 hdev->quirks |= HID_QUIRK_MULTI_INPUT; 1816 } 1817 1818 timer_setup(&td->release_timer, mt_expired_timeout, 0); 1819 1820 ret = hid_parse(hdev); 1821 if (ret != 0) 1822 return ret; 1823 1824 if (mtclass->quirks & MT_QUIRK_FIX_CONST_CONTACT_ID) 1825 mt_fix_const_fields(hdev, HID_DG_CONTACTID); 1826 1827 if (hdev->vendor == USB_VENDOR_ID_SIS_TOUCH) 1828 hdev->quirks |= HID_QUIRK_NOGET; 1829 1830 ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT); 1831 if (ret) 1832 return ret; 1833 1834 ret = sysfs_create_group(&hdev->dev.kobj, &mt_attribute_group); 1835 if (ret) 1836 dev_warn(&hdev->dev, "Cannot allocate sysfs group for %s\n", 1837 hdev->name); 1838 1839 mt_set_modes(hdev, HID_LATENCY_NORMAL, TOUCHPAD_REPORT_ALL); 1840 1841 return 0; 1842 } 1843 1844 static int mt_suspend(struct hid_device *hdev, pm_message_t state) 1845 { 1846 struct mt_device *td = hid_get_drvdata(hdev); 1847 1848 /* High latency is desirable for power savings during S3/S0ix */ 1849 if ((td->mtclass.quirks & MT_QUIRK_DISABLE_WAKEUP) || 1850 !hid_hw_may_wakeup(hdev)) 1851 mt_set_modes(hdev, HID_LATENCY_HIGH, TOUCHPAD_REPORT_NONE); 1852 else 1853 mt_set_modes(hdev, HID_LATENCY_HIGH, TOUCHPAD_REPORT_ALL); 1854 1855 return 0; 1856 } 1857 1858 static int mt_reset_resume(struct hid_device *hdev) 1859 { 1860 mt_release_contacts(hdev); 1861 mt_set_modes(hdev, HID_LATENCY_NORMAL, TOUCHPAD_REPORT_ALL); 1862 return 0; 1863 } 1864 1865 static int mt_resume(struct hid_device *hdev) 1866 { 1867 /* Some Elan legacy devices require SET_IDLE to be set on resume. 1868 * It should be safe to send it to other devices too. 1869 * Tested on 3M, Stantum, Cypress, Zytronic, eGalax, and Elan panels. */ 1870 1871 hid_hw_idle(hdev, 0, 0, HID_REQ_SET_IDLE); 1872 1873 mt_set_modes(hdev, HID_LATENCY_NORMAL, TOUCHPAD_REPORT_ALL); 1874 1875 return 0; 1876 } 1877 1878 static void mt_remove(struct hid_device *hdev) 1879 { 1880 struct mt_device *td = hid_get_drvdata(hdev); 1881 1882 del_timer_sync(&td->release_timer); 1883 1884 sysfs_remove_group(&hdev->dev.kobj, &mt_attribute_group); 1885 hid_hw_stop(hdev); 1886 } 1887 1888 /* 1889 * This list contains only: 1890 * - VID/PID of products not working with the default multitouch handling 1891 * - 2 generic rules. 1892 * So there is no point in adding here any device with MT_CLS_DEFAULT. 1893 */ 1894 static const struct hid_device_id mt_devices[] = { 1895 1896 /* 3M panels */ 1897 { .driver_data = MT_CLS_3M, 1898 MT_USB_DEVICE(USB_VENDOR_ID_3M, 1899 USB_DEVICE_ID_3M1968) }, 1900 { .driver_data = MT_CLS_3M, 1901 MT_USB_DEVICE(USB_VENDOR_ID_3M, 1902 USB_DEVICE_ID_3M2256) }, 1903 { .driver_data = MT_CLS_3M, 1904 MT_USB_DEVICE(USB_VENDOR_ID_3M, 1905 USB_DEVICE_ID_3M3266) }, 1906 1907 /* Anton devices */ 1908 { .driver_data = MT_CLS_EXPORT_ALL_INPUTS, 1909 MT_USB_DEVICE(USB_VENDOR_ID_ANTON, 1910 USB_DEVICE_ID_ANTON_TOUCH_PAD) }, 1911 1912 /* Asus T101HA */ 1913 { .driver_data = MT_CLS_WIN_8_DISABLE_WAKEUP, 1914 HID_DEVICE(BUS_USB, HID_GROUP_MULTITOUCH_WIN_8, 1915 USB_VENDOR_ID_ASUSTEK, 1916 USB_DEVICE_ID_ASUSTEK_T101HA_KEYBOARD) }, 1917 1918 /* Asus T304UA */ 1919 { .driver_data = MT_CLS_ASUS, 1920 HID_DEVICE(BUS_USB, HID_GROUP_MULTITOUCH_WIN_8, 1921 USB_VENDOR_ID_ASUSTEK, 1922 USB_DEVICE_ID_ASUSTEK_T304_KEYBOARD) }, 1923 1924 /* Atmel panels */ 1925 { .driver_data = MT_CLS_SERIAL, 1926 MT_USB_DEVICE(USB_VENDOR_ID_ATMEL, 1927 USB_DEVICE_ID_ATMEL_MXT_DIGITIZER) }, 1928 1929 /* Baanto multitouch devices */ 1930 { .driver_data = MT_CLS_NSMU, 1931 MT_USB_DEVICE(USB_VENDOR_ID_BAANTO, 1932 USB_DEVICE_ID_BAANTO_MT_190W2) }, 1933 1934 /* Cando panels */ 1935 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER, 1936 MT_USB_DEVICE(USB_VENDOR_ID_CANDO, 1937 USB_DEVICE_ID_CANDO_MULTI_TOUCH) }, 1938 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER, 1939 MT_USB_DEVICE(USB_VENDOR_ID_CANDO, 1940 USB_DEVICE_ID_CANDO_MULTI_TOUCH_15_6) }, 1941 1942 /* Chunghwa Telecom touch panels */ 1943 { .driver_data = MT_CLS_NSMU, 1944 MT_USB_DEVICE(USB_VENDOR_ID_CHUNGHWAT, 1945 USB_DEVICE_ID_CHUNGHWAT_MULTITOUCH) }, 1946 1947 /* CJTouch panels */ 1948 { .driver_data = MT_CLS_NSMU, 1949 MT_USB_DEVICE(USB_VENDOR_ID_CJTOUCH, 1950 USB_DEVICE_ID_CJTOUCH_MULTI_TOUCH_0020) }, 1951 { .driver_data = MT_CLS_NSMU, 1952 MT_USB_DEVICE(USB_VENDOR_ID_CJTOUCH, 1953 USB_DEVICE_ID_CJTOUCH_MULTI_TOUCH_0040) }, 1954 1955 /* CVTouch panels */ 1956 { .driver_data = MT_CLS_NSMU, 1957 MT_USB_DEVICE(USB_VENDOR_ID_CVTOUCH, 1958 USB_DEVICE_ID_CVTOUCH_SCREEN) }, 1959 1960 /* eGalax devices (SAW) */ 1961 { .driver_data = MT_CLS_EXPORT_ALL_INPUTS, 1962 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1963 USB_DEVICE_ID_EGALAX_TOUCHCONTROLLER) }, 1964 1965 /* eGalax devices (resistive) */ 1966 { .driver_data = MT_CLS_EGALAX, 1967 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1968 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_480D) }, 1969 { .driver_data = MT_CLS_EGALAX, 1970 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1971 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_480E) }, 1972 1973 /* eGalax devices (capacitive) */ 1974 { .driver_data = MT_CLS_EGALAX_SERIAL, 1975 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1976 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7207) }, 1977 { .driver_data = MT_CLS_EGALAX, 1978 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1979 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_720C) }, 1980 { .driver_data = MT_CLS_EGALAX_SERIAL, 1981 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1982 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7224) }, 1983 { .driver_data = MT_CLS_EGALAX_SERIAL, 1984 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1985 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_722A) }, 1986 { .driver_data = MT_CLS_EGALAX_SERIAL, 1987 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1988 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_725E) }, 1989 { .driver_data = MT_CLS_EGALAX_SERIAL, 1990 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1991 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7262) }, 1992 { .driver_data = MT_CLS_EGALAX, 1993 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1994 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_726B) }, 1995 { .driver_data = MT_CLS_EGALAX, 1996 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 1997 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72A1) }, 1998 { .driver_data = MT_CLS_EGALAX_SERIAL, 1999 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 2000 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72AA) }, 2001 { .driver_data = MT_CLS_EGALAX, 2002 HID_USB_DEVICE(USB_VENDOR_ID_DWAV, 2003 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72C4) }, 2004 { .driver_data = MT_CLS_EGALAX, 2005 HID_USB_DEVICE(USB_VENDOR_ID_DWAV, 2006 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72D0) }, 2007 { .driver_data = MT_CLS_EGALAX, 2008 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 2009 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72FA) }, 2010 { .driver_data = MT_CLS_EGALAX, 2011 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 2012 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7302) }, 2013 { .driver_data = MT_CLS_EGALAX_SERIAL, 2014 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 2015 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7349) }, 2016 { .driver_data = MT_CLS_EGALAX_SERIAL, 2017 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 2018 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_73F7) }, 2019 { .driver_data = MT_CLS_EGALAX_SERIAL, 2020 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 2021 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_A001) }, 2022 { .driver_data = MT_CLS_EGALAX, 2023 MT_USB_DEVICE(USB_VENDOR_ID_DWAV, 2024 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_C002) }, 2025 2026 /* Elan devices */ 2027 { .driver_data = MT_CLS_WIN_8_FORCE_MULTI_INPUT, 2028 HID_DEVICE(BUS_I2C, HID_GROUP_MULTITOUCH_WIN_8, 2029 USB_VENDOR_ID_ELAN, 0x313a) }, 2030 2031 { .driver_data = MT_CLS_WIN_8_FORCE_MULTI_INPUT, 2032 HID_DEVICE(BUS_I2C, HID_GROUP_MULTITOUCH_WIN_8, 2033 USB_VENDOR_ID_ELAN, 0x3148) }, 2034 2035 { .driver_data = MT_CLS_WIN_8_FORCE_MULTI_INPUT_NSMU, 2036 HID_DEVICE(BUS_I2C, HID_GROUP_MULTITOUCH_WIN_8, 2037 USB_VENDOR_ID_ELAN, 0x32ae) }, 2038 2039 /* Elitegroup panel */ 2040 { .driver_data = MT_CLS_SERIAL, 2041 MT_USB_DEVICE(USB_VENDOR_ID_ELITEGROUP, 2042 USB_DEVICE_ID_ELITEGROUP_05D8) }, 2043 2044 /* Flatfrog Panels */ 2045 { .driver_data = MT_CLS_FLATFROG, 2046 MT_USB_DEVICE(USB_VENDOR_ID_FLATFROG, 2047 USB_DEVICE_ID_MULTITOUCH_3200) }, 2048 2049 /* FocalTech Panels */ 2050 { .driver_data = MT_CLS_SERIAL, 2051 MT_USB_DEVICE(USB_VENDOR_ID_CYGNAL, 2052 USB_DEVICE_ID_FOCALTECH_FTXXXX_MULTITOUCH) }, 2053 2054 /* GeneralTouch panel */ 2055 { .driver_data = MT_CLS_GENERALTOUCH_TWOFINGERS, 2056 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 2057 USB_DEVICE_ID_GENERAL_TOUCH_WIN7_TWOFINGERS) }, 2058 { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS, 2059 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 2060 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PWT_TENFINGERS) }, 2061 { .driver_data = MT_CLS_GENERALTOUCH_TWOFINGERS, 2062 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 2063 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_0101) }, 2064 { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS, 2065 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 2066 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_0102) }, 2067 { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS, 2068 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 2069 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_0106) }, 2070 { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS, 2071 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 2072 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_010A) }, 2073 { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS, 2074 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 2075 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_E100) }, 2076 2077 /* Gametel game controller */ 2078 { .driver_data = MT_CLS_NSMU, 2079 MT_BT_DEVICE(USB_VENDOR_ID_FRUCTEL, 2080 USB_DEVICE_ID_GAMETEL_MT_MODE) }, 2081 2082 /* Goodix GT7868Q devices */ 2083 { .driver_data = MT_CLS_WIN_8_FORCE_MULTI_INPUT_NSMU, 2084 HID_DEVICE(BUS_I2C, HID_GROUP_ANY, I2C_VENDOR_ID_GOODIX, 2085 I2C_DEVICE_ID_GOODIX_01E8) }, 2086 { .driver_data = MT_CLS_WIN_8_FORCE_MULTI_INPUT_NSMU, 2087 HID_DEVICE(BUS_I2C, HID_GROUP_ANY, I2C_VENDOR_ID_GOODIX, 2088 I2C_DEVICE_ID_GOODIX_01E9) }, 2089 { .driver_data = MT_CLS_WIN_8_FORCE_MULTI_INPUT_NSMU, 2090 HID_DEVICE(BUS_I2C, HID_GROUP_ANY, I2C_VENDOR_ID_GOODIX, 2091 I2C_DEVICE_ID_GOODIX_01E0) }, 2092 2093 /* GoodTouch panels */ 2094 { .driver_data = MT_CLS_NSMU, 2095 MT_USB_DEVICE(USB_VENDOR_ID_GOODTOUCH, 2096 USB_DEVICE_ID_GOODTOUCH_000f) }, 2097 2098 /* Hanvon panels */ 2099 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID, 2100 MT_USB_DEVICE(USB_VENDOR_ID_HANVON_ALT, 2101 USB_DEVICE_ID_HANVON_ALT_MULTITOUCH) }, 2102 2103 /* HONOR GLO-GXXX panel */ 2104 { .driver_data = MT_CLS_VTL, 2105 HID_DEVICE(BUS_I2C, HID_GROUP_MULTITOUCH_WIN_8, 2106 0x347d, 0x7853) }, 2107 2108 /* HONOR MagicBook Art 14 touchpad */ 2109 { .driver_data = MT_CLS_VTL, 2110 HID_DEVICE(BUS_I2C, HID_GROUP_MULTITOUCH_WIN_8, 2111 0x35cc, 0x0104) }, 2112 2113 /* Ilitek dual touch panel */ 2114 { .driver_data = MT_CLS_NSMU, 2115 MT_USB_DEVICE(USB_VENDOR_ID_ILITEK, 2116 USB_DEVICE_ID_ILITEK_MULTITOUCH) }, 2117 2118 /* LG Melfas panel */ 2119 { .driver_data = MT_CLS_LG, 2120 HID_USB_DEVICE(USB_VENDOR_ID_LG, 2121 USB_DEVICE_ID_LG_MELFAS_MT) }, 2122 { .driver_data = MT_CLS_LG, 2123 HID_DEVICE(BUS_I2C, HID_GROUP_GENERIC, 2124 USB_VENDOR_ID_LG, I2C_DEVICE_ID_LG_7010) }, 2125 2126 /* Lenovo X1 TAB Gen 2 */ 2127 { .driver_data = MT_CLS_WIN_8_FORCE_MULTI_INPUT, 2128 HID_DEVICE(BUS_USB, HID_GROUP_MULTITOUCH_WIN_8, 2129 USB_VENDOR_ID_LENOVO, 2130 USB_DEVICE_ID_LENOVO_X1_TAB) }, 2131 2132 /* Lenovo X1 TAB Gen 3 */ 2133 { .driver_data = MT_CLS_WIN_8_FORCE_MULTI_INPUT, 2134 HID_DEVICE(BUS_USB, HID_GROUP_MULTITOUCH_WIN_8, 2135 USB_VENDOR_ID_LENOVO, 2136 USB_DEVICE_ID_LENOVO_X1_TAB3) }, 2137 2138 /* Lenovo X12 TAB Gen 1 */ 2139 { .driver_data = MT_CLS_WIN_8_FORCE_MULTI_INPUT_NSMU, 2140 HID_DEVICE(BUS_USB, HID_GROUP_MULTITOUCH_WIN_8, 2141 USB_VENDOR_ID_LENOVO, 2142 USB_DEVICE_ID_LENOVO_X12_TAB) }, 2143 2144 /* Lenovo X12 TAB Gen 2 */ 2145 { .driver_data = MT_CLS_WIN_8_FORCE_MULTI_INPUT_NSMU, 2146 HID_DEVICE(BUS_USB, HID_GROUP_MULTITOUCH_WIN_8, 2147 USB_VENDOR_ID_LENOVO, 2148 USB_DEVICE_ID_LENOVO_X12_TAB2) }, 2149 2150 /* Logitech devices */ 2151 { .driver_data = MT_CLS_NSMU, 2152 HID_DEVICE(BUS_BLUETOOTH, HID_GROUP_MULTITOUCH_WIN_8, 2153 USB_VENDOR_ID_LOGITECH, 2154 USB_DEVICE_ID_LOGITECH_CASA_TOUCHPAD) }, 2155 { .driver_data = MT_CLS_WIN_8_FORCE_MULTI_INPUT_NSMU, 2156 HID_DEVICE(BUS_USB, HID_GROUP_MULTITOUCH_WIN_8, 2157 USB_VENDOR_ID_LOGITECH, 2158 USB_DEVICE_ID_LOGITECH_BOLT_RECEIVER) }, 2159 2160 /* MosArt panels */ 2161 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE, 2162 MT_USB_DEVICE(USB_VENDOR_ID_ASUS, 2163 USB_DEVICE_ID_ASUS_T91MT)}, 2164 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE, 2165 MT_USB_DEVICE(USB_VENDOR_ID_ASUS, 2166 USB_DEVICE_ID_ASUSTEK_MULTITOUCH_YFO) }, 2167 { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE, 2168 MT_USB_DEVICE(USB_VENDOR_ID_TURBOX, 2169 USB_DEVICE_ID_TURBOX_TOUCHSCREEN_MOSART) }, 2170 2171 /* Novatek Panel */ 2172 { .driver_data = MT_CLS_NSMU, 2173 MT_USB_DEVICE(USB_VENDOR_ID_NOVATEK, 2174 USB_DEVICE_ID_NOVATEK_PCT) }, 2175 2176 /* Ntrig Panel */ 2177 { .driver_data = MT_CLS_NSMU, 2178 HID_DEVICE(BUS_I2C, HID_GROUP_MULTITOUCH_WIN_8, 2179 USB_VENDOR_ID_NTRIG, 0x1b05) }, 2180 2181 /* Panasonic panels */ 2182 { .driver_data = MT_CLS_PANASONIC, 2183 MT_USB_DEVICE(USB_VENDOR_ID_PANASONIC, 2184 USB_DEVICE_ID_PANABOARD_UBT780) }, 2185 { .driver_data = MT_CLS_PANASONIC, 2186 MT_USB_DEVICE(USB_VENDOR_ID_PANASONIC, 2187 USB_DEVICE_ID_PANABOARD_UBT880) }, 2188 2189 /* PixArt optical touch screen */ 2190 { .driver_data = MT_CLS_INRANGE_CONTACTNUMBER, 2191 MT_USB_DEVICE(USB_VENDOR_ID_PIXART, 2192 USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN) }, 2193 { .driver_data = MT_CLS_INRANGE_CONTACTNUMBER, 2194 MT_USB_DEVICE(USB_VENDOR_ID_PIXART, 2195 USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN1) }, 2196 { .driver_data = MT_CLS_INRANGE_CONTACTNUMBER, 2197 MT_USB_DEVICE(USB_VENDOR_ID_PIXART, 2198 USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN2) }, 2199 2200 /* PixCir-based panels */ 2201 { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID, 2202 MT_USB_DEVICE(USB_VENDOR_ID_CANDO, 2203 USB_DEVICE_ID_CANDO_PIXCIR_MULTI_TOUCH) }, 2204 2205 /* Quanta-based panels */ 2206 { .driver_data = MT_CLS_CONFIDENCE_CONTACT_ID, 2207 MT_USB_DEVICE(USB_VENDOR_ID_QUANTA, 2208 USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3001) }, 2209 2210 /* Razer touchpads */ 2211 { .driver_data = MT_CLS_RAZER_BLADE_STEALTH, 2212 HID_DEVICE(BUS_I2C, HID_GROUP_MULTITOUCH_WIN_8, 2213 USB_VENDOR_ID_SYNAPTICS, 0x8323) }, 2214 2215 /* Smart Tech panels */ 2216 { .driver_data = MT_CLS_SMART_TECH, 2217 MT_USB_DEVICE(0x0b8c, 0x0092)}, 2218 2219 /* Stantum panels */ 2220 { .driver_data = MT_CLS_CONFIDENCE, 2221 MT_USB_DEVICE(USB_VENDOR_ID_STANTUM_STM, 2222 USB_DEVICE_ID_MTP_STM)}, 2223 2224 /* Synaptics devices */ 2225 { .driver_data = MT_CLS_WIN_8_FORCE_MULTI_INPUT, 2226 HID_DEVICE(BUS_I2C, HID_GROUP_MULTITOUCH_WIN_8, 2227 USB_VENDOR_ID_SYNAPTICS, 0xcd7e) }, 2228 2229 { .driver_data = MT_CLS_WIN_8_FORCE_MULTI_INPUT, 2230 HID_DEVICE(BUS_I2C, HID_GROUP_MULTITOUCH_WIN_8, 2231 USB_VENDOR_ID_SYNAPTICS, 0xcddc) }, 2232 2233 { .driver_data = MT_CLS_WIN_8_FORCE_MULTI_INPUT, 2234 HID_DEVICE(BUS_I2C, HID_GROUP_MULTITOUCH_WIN_8, 2235 USB_VENDOR_ID_SYNAPTICS, 0xce08) }, 2236 2237 { .driver_data = MT_CLS_WIN_8_FORCE_MULTI_INPUT, 2238 HID_DEVICE(BUS_I2C, HID_GROUP_MULTITOUCH_WIN_8, 2239 USB_VENDOR_ID_SYNAPTICS, 0xce09) }, 2240 2241 /* TopSeed panels */ 2242 { .driver_data = MT_CLS_TOPSEED, 2243 MT_USB_DEVICE(USB_VENDOR_ID_TOPSEED2, 2244 USB_DEVICE_ID_TOPSEED2_PERIPAD_701) }, 2245 2246 /* Touch International panels */ 2247 { .driver_data = MT_CLS_NSMU, 2248 MT_USB_DEVICE(USB_VENDOR_ID_TOUCH_INTL, 2249 USB_DEVICE_ID_TOUCH_INTL_MULTI_TOUCH) }, 2250 2251 /* Unitec panels */ 2252 { .driver_data = MT_CLS_NSMU, 2253 MT_USB_DEVICE(USB_VENDOR_ID_UNITEC, 2254 USB_DEVICE_ID_UNITEC_USB_TOUCH_0709) }, 2255 { .driver_data = MT_CLS_NSMU, 2256 MT_USB_DEVICE(USB_VENDOR_ID_UNITEC, 2257 USB_DEVICE_ID_UNITEC_USB_TOUCH_0A19) }, 2258 2259 /* VTL panels */ 2260 { .driver_data = MT_CLS_VTL, 2261 MT_USB_DEVICE(USB_VENDOR_ID_VTL, 2262 USB_DEVICE_ID_VTL_MULTITOUCH_FF3F) }, 2263 2264 /* Winbond Electronics Corp. */ 2265 { .driver_data = MT_CLS_WIN_8_NO_STICKY_FINGERS, 2266 HID_DEVICE(HID_BUS_ANY, HID_GROUP_MULTITOUCH_WIN_8, 2267 USB_VENDOR_ID_WINBOND, USB_DEVICE_ID_TSTP_MTOUCH) }, 2268 2269 /* Wistron panels */ 2270 { .driver_data = MT_CLS_NSMU, 2271 MT_USB_DEVICE(USB_VENDOR_ID_WISTRON, 2272 USB_DEVICE_ID_WISTRON_OPTICAL_TOUCH) }, 2273 2274 /* XAT */ 2275 { .driver_data = MT_CLS_NSMU, 2276 MT_USB_DEVICE(USB_VENDOR_ID_XAT, 2277 USB_DEVICE_ID_XAT_CSR) }, 2278 2279 /* Xiroku */ 2280 { .driver_data = MT_CLS_NSMU, 2281 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 2282 USB_DEVICE_ID_XIROKU_SPX) }, 2283 { .driver_data = MT_CLS_NSMU, 2284 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 2285 USB_DEVICE_ID_XIROKU_MPX) }, 2286 { .driver_data = MT_CLS_NSMU, 2287 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 2288 USB_DEVICE_ID_XIROKU_CSR) }, 2289 { .driver_data = MT_CLS_NSMU, 2290 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 2291 USB_DEVICE_ID_XIROKU_SPX1) }, 2292 { .driver_data = MT_CLS_NSMU, 2293 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 2294 USB_DEVICE_ID_XIROKU_MPX1) }, 2295 { .driver_data = MT_CLS_NSMU, 2296 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 2297 USB_DEVICE_ID_XIROKU_CSR1) }, 2298 { .driver_data = MT_CLS_NSMU, 2299 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 2300 USB_DEVICE_ID_XIROKU_SPX2) }, 2301 { .driver_data = MT_CLS_NSMU, 2302 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 2303 USB_DEVICE_ID_XIROKU_MPX2) }, 2304 { .driver_data = MT_CLS_NSMU, 2305 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, 2306 USB_DEVICE_ID_XIROKU_CSR2) }, 2307 2308 /* Google MT devices */ 2309 { .driver_data = MT_CLS_GOOGLE, 2310 HID_DEVICE(HID_BUS_ANY, HID_GROUP_ANY, USB_VENDOR_ID_GOOGLE, 2311 USB_DEVICE_ID_GOOGLE_TOUCH_ROSE) }, 2312 { .driver_data = MT_CLS_GOOGLE, 2313 HID_DEVICE(BUS_USB, HID_GROUP_MULTITOUCH_WIN_8, USB_VENDOR_ID_GOOGLE, 2314 USB_DEVICE_ID_GOOGLE_WHISKERS) }, 2315 2316 /* sis */ 2317 { .driver_data = MT_CLS_SIS, 2318 HID_DEVICE(HID_BUS_ANY, HID_GROUP_ANY, USB_VENDOR_ID_SIS_TOUCH, 2319 HID_ANY_ID) }, 2320 2321 /* Generic MT device */ 2322 { HID_DEVICE(HID_BUS_ANY, HID_GROUP_MULTITOUCH, HID_ANY_ID, HID_ANY_ID) }, 2323 2324 /* Generic Win 8 certified MT device */ 2325 { .driver_data = MT_CLS_WIN_8, 2326 HID_DEVICE(HID_BUS_ANY, HID_GROUP_MULTITOUCH_WIN_8, 2327 HID_ANY_ID, HID_ANY_ID) }, 2328 { } 2329 }; 2330 MODULE_DEVICE_TABLE(hid, mt_devices); 2331 2332 static const struct hid_usage_id mt_grabbed_usages[] = { 2333 { HID_ANY_ID, HID_ANY_ID, HID_ANY_ID }, 2334 { HID_ANY_ID - 1, HID_ANY_ID - 1, HID_ANY_ID - 1} 2335 }; 2336 2337 static struct hid_driver mt_driver = { 2338 .name = "hid-multitouch", 2339 .id_table = mt_devices, 2340 .probe = mt_probe, 2341 .remove = mt_remove, 2342 .input_mapping = mt_input_mapping, 2343 .input_mapped = mt_input_mapped, 2344 .input_configured = mt_input_configured, 2345 .feature_mapping = mt_feature_mapping, 2346 .usage_table = mt_grabbed_usages, 2347 .event = mt_event, 2348 .report_fixup = mt_report_fixup, 2349 .report = mt_report, 2350 .suspend = pm_ptr(mt_suspend), 2351 .reset_resume = pm_ptr(mt_reset_resume), 2352 .resume = pm_ptr(mt_resume), 2353 }; 2354 module_hid_driver(mt_driver); 2355