| 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_CONFIDENCE (1 << 7) |
| 65 | #define MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE (1 << 8) |
| 66 | #define MT_QUIRK_NO_AREA (1 << 9) |
| 67 | #define MT_QUIRK_IGNORE_DUPLICATES (1 << 10) |
| 68 | #define MT_QUIRK_HOVERING (1 << 11) |
| 69 | #define MT_QUIRK_CONTACT_CNT_ACCURATE (1 << 12) |
| 70 | #define MT_QUIRK_FORCE_GET_FEATURE (1 << 13) |
| 71 | |
| 72 | #define MT_INPUTMODE_TOUCHSCREEN 0x02 |
| 73 | #define MT_INPUTMODE_TOUCHPAD 0x03 |
| 74 | |
| 75 | #define MT_BUTTONTYPE_CLICKPAD 0 |
| 76 | |
| 77 | struct mt_slot { |
| 78 | __s32 x, y, cx, cy, p, w, h; |
| 79 | __s32 contactid; /* the device ContactID assigned to this slot */ |
| 80 | bool touch_state; /* is the touch valid? */ |
| 81 | bool inrange_state; /* is the finger in proximity of the sensor? */ |
| 82 | bool confidence_state; /* is the touch made by a finger? */ |
| 83 | }; |
| 84 | |
| 85 | struct mt_class { |
| 86 | __s32 name; /* MT_CLS */ |
| 87 | __s32 quirks; |
| 88 | __s32 sn_move; /* Signal/noise ratio for move events */ |
| 89 | __s32 sn_width; /* Signal/noise ratio for width events */ |
| 90 | __s32 sn_height; /* Signal/noise ratio for height events */ |
| 91 | __s32 sn_pressure; /* Signal/noise ratio for pressure events */ |
| 92 | __u8 maxcontacts; |
| 93 | bool is_indirect; /* true for touchpads */ |
| 94 | bool export_all_inputs; /* do not ignore mouse, keyboards, etc... */ |
| 95 | }; |
| 96 | |
| 97 | struct mt_fields { |
| 98 | unsigned usages[HID_MAX_FIELDS]; |
| 99 | unsigned int length; |
| 100 | }; |
| 101 | |
| 102 | struct mt_device { |
| 103 | struct mt_slot curdata; /* placeholder of incoming data */ |
| 104 | struct mt_class mtclass; /* our mt device class */ |
| 105 | struct mt_fields *fields; /* temporary placeholder for storing the |
| 106 | multitouch fields */ |
| 107 | int cc_index; /* contact count field index in the report */ |
| 108 | int cc_value_index; /* contact count value index in the field */ |
| 109 | unsigned last_slot_field; /* the last field of a slot */ |
| 110 | unsigned mt_report_id; /* the report ID of the multitouch device */ |
| 111 | __s16 inputmode; /* InputMode HID feature, -1 if non-existent */ |
| 112 | __s16 inputmode_index; /* InputMode HID feature index in the report */ |
| 113 | __s16 maxcontact_report_id; /* Maximum Contact Number HID feature, |
| 114 | -1 if non-existent */ |
| 115 | __u8 inputmode_value; /* InputMode HID feature value */ |
| 116 | __u8 num_received; /* how many contacts we received */ |
| 117 | __u8 num_expected; /* expected last contact index */ |
| 118 | __u8 maxcontacts; |
| 119 | __u8 touches_by_report; /* how many touches are present in one report: |
| 120 | * 1 means we should use a serial protocol |
| 121 | * > 1 means hybrid (multitouch) protocol */ |
| 122 | __u8 buttons_count; /* number of physical buttons per touchpad */ |
| 123 | bool is_buttonpad; /* is this device a button pad? */ |
| 124 | bool serial_maybe; /* need to check for serial protocol */ |
| 125 | bool curvalid; /* is the current contact valid? */ |
| 126 | unsigned mt_flags; /* flags to pass to input-mt */ |
| 127 | }; |
| 128 | |
| 129 | static void mt_post_parse_default_settings(struct mt_device *td); |
| 130 | static void mt_post_parse(struct mt_device *td); |
| 131 | |
| 132 | /* classes of device behavior */ |
| 133 | #define MT_CLS_DEFAULT 0x0001 |
| 134 | |
| 135 | #define MT_CLS_SERIAL 0x0002 |
| 136 | #define MT_CLS_CONFIDENCE 0x0003 |
| 137 | #define MT_CLS_CONFIDENCE_CONTACT_ID 0x0004 |
| 138 | #define MT_CLS_CONFIDENCE_MINUS_ONE 0x0005 |
| 139 | #define MT_CLS_DUAL_INRANGE_CONTACTID 0x0006 |
| 140 | #define MT_CLS_DUAL_INRANGE_CONTACTNUMBER 0x0007 |
| 141 | /* reserved 0x0008 */ |
| 142 | #define MT_CLS_INRANGE_CONTACTNUMBER 0x0009 |
| 143 | #define MT_CLS_NSMU 0x000a |
| 144 | /* reserved 0x0010 */ |
| 145 | /* reserved 0x0011 */ |
| 146 | #define MT_CLS_WIN_8 0x0012 |
| 147 | #define MT_CLS_EXPORT_ALL_INPUTS 0x0013 |
| 148 | |
| 149 | /* vendor specific classes */ |
| 150 | #define MT_CLS_3M 0x0101 |
| 151 | /* reserved 0x0102 */ |
| 152 | #define MT_CLS_EGALAX 0x0103 |
| 153 | #define MT_CLS_EGALAX_SERIAL 0x0104 |
| 154 | #define MT_CLS_TOPSEED 0x0105 |
| 155 | #define MT_CLS_PANASONIC 0x0106 |
| 156 | #define MT_CLS_FLATFROG 0x0107 |
| 157 | #define MT_CLS_GENERALTOUCH_TWOFINGERS 0x0108 |
| 158 | #define MT_CLS_GENERALTOUCH_PWT_TENFINGERS 0x0109 |
| 159 | #define MT_CLS_VTL 0x0110 |
| 160 | |
| 161 | #define MT_DEFAULT_MAXCONTACT 10 |
| 162 | #define MT_MAX_MAXCONTACT 250 |
| 163 | |
| 164 | #define MT_USB_DEVICE(v, p) HID_DEVICE(BUS_USB, HID_GROUP_MULTITOUCH, v, p) |
| 165 | #define MT_BT_DEVICE(v, p) HID_DEVICE(BUS_BLUETOOTH, HID_GROUP_MULTITOUCH, v, p) |
| 166 | |
| 167 | /* |
| 168 | * these device-dependent functions determine what slot corresponds |
| 169 | * to a valid contact that was just read. |
| 170 | */ |
| 171 | |
| 172 | static int cypress_compute_slot(struct mt_device *td) |
| 173 | { |
| 174 | if (td->curdata.contactid != 0 || td->num_received == 0) |
| 175 | return td->curdata.contactid; |
| 176 | else |
| 177 | return -1; |
| 178 | } |
| 179 | |
| 180 | static struct mt_class mt_classes[] = { |
| 181 | { .name = MT_CLS_DEFAULT, |
| 182 | .quirks = MT_QUIRK_ALWAYS_VALID | |
| 183 | MT_QUIRK_CONTACT_CNT_ACCURATE }, |
| 184 | { .name = MT_CLS_NSMU, |
| 185 | .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP }, |
| 186 | { .name = MT_CLS_SERIAL, |
| 187 | .quirks = MT_QUIRK_ALWAYS_VALID}, |
| 188 | { .name = MT_CLS_CONFIDENCE, |
| 189 | .quirks = MT_QUIRK_VALID_IS_CONFIDENCE }, |
| 190 | { .name = MT_CLS_CONFIDENCE_CONTACT_ID, |
| 191 | .quirks = MT_QUIRK_VALID_IS_CONFIDENCE | |
| 192 | MT_QUIRK_SLOT_IS_CONTACTID }, |
| 193 | { .name = MT_CLS_CONFIDENCE_MINUS_ONE, |
| 194 | .quirks = MT_QUIRK_VALID_IS_CONFIDENCE | |
| 195 | MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE }, |
| 196 | { .name = MT_CLS_DUAL_INRANGE_CONTACTID, |
| 197 | .quirks = MT_QUIRK_VALID_IS_INRANGE | |
| 198 | MT_QUIRK_SLOT_IS_CONTACTID, |
| 199 | .maxcontacts = 2 }, |
| 200 | { .name = MT_CLS_DUAL_INRANGE_CONTACTNUMBER, |
| 201 | .quirks = MT_QUIRK_VALID_IS_INRANGE | |
| 202 | MT_QUIRK_SLOT_IS_CONTACTNUMBER, |
| 203 | .maxcontacts = 2 }, |
| 204 | { .name = MT_CLS_INRANGE_CONTACTNUMBER, |
| 205 | .quirks = MT_QUIRK_VALID_IS_INRANGE | |
| 206 | MT_QUIRK_SLOT_IS_CONTACTNUMBER }, |
| 207 | { .name = MT_CLS_WIN_8, |
| 208 | .quirks = MT_QUIRK_ALWAYS_VALID | |
| 209 | MT_QUIRK_IGNORE_DUPLICATES | |
| 210 | MT_QUIRK_HOVERING | |
| 211 | MT_QUIRK_CONTACT_CNT_ACCURATE }, |
| 212 | { .name = MT_CLS_EXPORT_ALL_INPUTS, |
| 213 | .quirks = MT_QUIRK_ALWAYS_VALID | |
| 214 | MT_QUIRK_CONTACT_CNT_ACCURATE, |
| 215 | .export_all_inputs = true }, |
| 216 | |
| 217 | /* |
| 218 | * vendor specific classes |
| 219 | */ |
| 220 | { .name = MT_CLS_3M, |
| 221 | .quirks = MT_QUIRK_VALID_IS_CONFIDENCE | |
| 222 | MT_QUIRK_SLOT_IS_CONTACTID, |
| 223 | .sn_move = 2048, |
| 224 | .sn_width = 128, |
| 225 | .sn_height = 128, |
| 226 | .maxcontacts = 60, |
| 227 | }, |
| 228 | { .name = MT_CLS_EGALAX, |
| 229 | .quirks = MT_QUIRK_SLOT_IS_CONTACTID | |
| 230 | MT_QUIRK_VALID_IS_INRANGE, |
| 231 | .sn_move = 4096, |
| 232 | .sn_pressure = 32, |
| 233 | }, |
| 234 | { .name = MT_CLS_EGALAX_SERIAL, |
| 235 | .quirks = MT_QUIRK_SLOT_IS_CONTACTID | |
| 236 | MT_QUIRK_ALWAYS_VALID, |
| 237 | .sn_move = 4096, |
| 238 | .sn_pressure = 32, |
| 239 | }, |
| 240 | { .name = MT_CLS_TOPSEED, |
| 241 | .quirks = MT_QUIRK_ALWAYS_VALID, |
| 242 | .is_indirect = true, |
| 243 | .maxcontacts = 2, |
| 244 | }, |
| 245 | { .name = MT_CLS_PANASONIC, |
| 246 | .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP, |
| 247 | .maxcontacts = 4 }, |
| 248 | { .name = MT_CLS_GENERALTOUCH_TWOFINGERS, |
| 249 | .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP | |
| 250 | MT_QUIRK_VALID_IS_INRANGE | |
| 251 | MT_QUIRK_SLOT_IS_CONTACTID, |
| 252 | .maxcontacts = 2 |
| 253 | }, |
| 254 | { .name = MT_CLS_GENERALTOUCH_PWT_TENFINGERS, |
| 255 | .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP | |
| 256 | MT_QUIRK_SLOT_IS_CONTACTID |
| 257 | }, |
| 258 | |
| 259 | { .name = MT_CLS_FLATFROG, |
| 260 | .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP | |
| 261 | MT_QUIRK_NO_AREA, |
| 262 | .sn_move = 2048, |
| 263 | .maxcontacts = 40, |
| 264 | }, |
| 265 | { .name = MT_CLS_VTL, |
| 266 | .quirks = MT_QUIRK_ALWAYS_VALID | |
| 267 | MT_QUIRK_CONTACT_CNT_ACCURATE | |
| 268 | MT_QUIRK_FORCE_GET_FEATURE, |
| 269 | }, |
| 270 | { } |
| 271 | }; |
| 272 | |
| 273 | static ssize_t mt_show_quirks(struct device *dev, |
| 274 | struct device_attribute *attr, |
| 275 | char *buf) |
| 276 | { |
| 277 | struct hid_device *hdev = to_hid_device(dev); |
| 278 | struct mt_device *td = hid_get_drvdata(hdev); |
| 279 | |
| 280 | return sprintf(buf, "%u\n", td->mtclass.quirks); |
| 281 | } |
| 282 | |
| 283 | static ssize_t mt_set_quirks(struct device *dev, |
| 284 | struct device_attribute *attr, |
| 285 | const char *buf, size_t count) |
| 286 | { |
| 287 | struct hid_device *hdev = to_hid_device(dev); |
| 288 | struct mt_device *td = hid_get_drvdata(hdev); |
| 289 | |
| 290 | unsigned long val; |
| 291 | |
| 292 | if (kstrtoul(buf, 0, &val)) |
| 293 | return -EINVAL; |
| 294 | |
| 295 | td->mtclass.quirks = val; |
| 296 | |
| 297 | if (td->cc_index < 0) |
| 298 | td->mtclass.quirks &= ~MT_QUIRK_CONTACT_CNT_ACCURATE; |
| 299 | |
| 300 | return count; |
| 301 | } |
| 302 | |
| 303 | static DEVICE_ATTR(quirks, S_IWUSR | S_IRUGO, mt_show_quirks, mt_set_quirks); |
| 304 | |
| 305 | static struct attribute *sysfs_attrs[] = { |
| 306 | &dev_attr_quirks.attr, |
| 307 | NULL |
| 308 | }; |
| 309 | |
| 310 | static struct attribute_group mt_attribute_group = { |
| 311 | .attrs = sysfs_attrs |
| 312 | }; |
| 313 | |
| 314 | static void mt_get_feature(struct hid_device *hdev, struct hid_report *report) |
| 315 | { |
| 316 | struct mt_device *td = hid_get_drvdata(hdev); |
| 317 | int ret, size = hid_report_len(report); |
| 318 | u8 *buf; |
| 319 | |
| 320 | /* |
| 321 | * Only fetch the feature report if initial reports are not already |
| 322 | * been retrieved. Currently this is only done for Windows 8 touch |
| 323 | * devices. |
| 324 | */ |
| 325 | if (!(hdev->quirks & HID_QUIRK_NO_INIT_REPORTS)) |
| 326 | return; |
| 327 | if (td->mtclass.name != MT_CLS_WIN_8) |
| 328 | return; |
| 329 | |
| 330 | buf = hid_alloc_report_buf(report, GFP_KERNEL); |
| 331 | if (!buf) |
| 332 | return; |
| 333 | |
| 334 | ret = hid_hw_raw_request(hdev, report->id, buf, size, |
| 335 | HID_FEATURE_REPORT, HID_REQ_GET_REPORT); |
| 336 | if (ret < 0) { |
| 337 | dev_warn(&hdev->dev, "failed to fetch feature %d\n", |
| 338 | report->id); |
| 339 | } else { |
| 340 | ret = hid_report_raw_event(hdev, HID_FEATURE_REPORT, buf, |
| 341 | size, 0); |
| 342 | if (ret) |
| 343 | dev_warn(&hdev->dev, "failed to report feature\n"); |
| 344 | } |
| 345 | |
| 346 | kfree(buf); |
| 347 | } |
| 348 | |
| 349 | static void mt_feature_mapping(struct hid_device *hdev, |
| 350 | struct hid_field *field, struct hid_usage *usage) |
| 351 | { |
| 352 | struct mt_device *td = hid_get_drvdata(hdev); |
| 353 | |
| 354 | switch (usage->hid) { |
| 355 | case HID_DG_INPUTMODE: |
| 356 | /* Ignore if value index is out of bounds. */ |
| 357 | if (usage->usage_index >= field->report_count) { |
| 358 | dev_err(&hdev->dev, "HID_DG_INPUTMODE out of range\n"); |
| 359 | break; |
| 360 | } |
| 361 | |
| 362 | if (td->inputmode < 0) { |
| 363 | td->inputmode = field->report->id; |
| 364 | td->inputmode_index = usage->usage_index; |
| 365 | } else { |
| 366 | /* |
| 367 | * Some elan panels wrongly declare 2 input mode |
| 368 | * features, and silently ignore when we set the |
| 369 | * value in the second field. Skip the second feature |
| 370 | * and hope for the best. |
| 371 | */ |
| 372 | dev_info(&hdev->dev, |
| 373 | "Ignoring the extra HID_DG_INPUTMODE\n"); |
| 374 | } |
| 375 | |
| 376 | break; |
| 377 | case HID_DG_CONTACTMAX: |
| 378 | mt_get_feature(hdev, field->report); |
| 379 | |
| 380 | td->maxcontact_report_id = field->report->id; |
| 381 | td->maxcontacts = field->value[0]; |
| 382 | if (!td->maxcontacts && |
| 383 | field->logical_maximum <= MT_MAX_MAXCONTACT) |
| 384 | td->maxcontacts = field->logical_maximum; |
| 385 | if (td->mtclass.maxcontacts) |
| 386 | /* check if the maxcontacts is given by the class */ |
| 387 | td->maxcontacts = td->mtclass.maxcontacts; |
| 388 | |
| 389 | break; |
| 390 | case HID_DG_BUTTONTYPE: |
| 391 | if (usage->usage_index >= field->report_count) { |
| 392 | dev_err(&hdev->dev, "HID_DG_BUTTONTYPE out of range\n"); |
| 393 | break; |
| 394 | } |
| 395 | |
| 396 | mt_get_feature(hdev, field->report); |
| 397 | if (field->value[usage->usage_index] == MT_BUTTONTYPE_CLICKPAD) |
| 398 | td->is_buttonpad = true; |
| 399 | |
| 400 | break; |
| 401 | case 0xff0000c5: |
| 402 | /* Retrieve the Win8 blob once to enable some devices */ |
| 403 | if (usage->usage_index == 0) |
| 404 | mt_get_feature(hdev, field->report); |
| 405 | break; |
| 406 | } |
| 407 | } |
| 408 | |
| 409 | static void set_abs(struct input_dev *input, unsigned int code, |
| 410 | struct hid_field *field, int snratio) |
| 411 | { |
| 412 | int fmin = field->logical_minimum; |
| 413 | int fmax = field->logical_maximum; |
| 414 | int fuzz = snratio ? (fmax - fmin) / snratio : 0; |
| 415 | input_set_abs_params(input, code, fmin, fmax, fuzz, 0); |
| 416 | input_abs_set_res(input, code, hidinput_calc_abs_res(field, code)); |
| 417 | } |
| 418 | |
| 419 | static void mt_store_field(struct hid_usage *usage, struct mt_device *td, |
| 420 | struct hid_input *hi) |
| 421 | { |
| 422 | struct mt_fields *f = td->fields; |
| 423 | |
| 424 | if (f->length >= HID_MAX_FIELDS) |
| 425 | return; |
| 426 | |
| 427 | f->usages[f->length++] = usage->hid; |
| 428 | } |
| 429 | |
| 430 | static int mt_touch_input_mapping(struct hid_device *hdev, struct hid_input *hi, |
| 431 | struct hid_field *field, struct hid_usage *usage, |
| 432 | unsigned long **bit, int *max) |
| 433 | { |
| 434 | struct mt_device *td = hid_get_drvdata(hdev); |
| 435 | struct mt_class *cls = &td->mtclass; |
| 436 | int code; |
| 437 | struct hid_usage *prev_usage = NULL; |
| 438 | |
| 439 | if (field->application == HID_DG_TOUCHSCREEN) |
| 440 | td->mt_flags |= INPUT_MT_DIRECT; |
| 441 | |
| 442 | /* |
| 443 | * Model touchscreens providing buttons as touchpads. |
| 444 | */ |
| 445 | if (field->application == HID_DG_TOUCHPAD || |
| 446 | (usage->hid & HID_USAGE_PAGE) == HID_UP_BUTTON) { |
| 447 | td->mt_flags |= INPUT_MT_POINTER; |
| 448 | td->inputmode_value = MT_INPUTMODE_TOUCHPAD; |
| 449 | } |
| 450 | |
| 451 | /* count the buttons on touchpads */ |
| 452 | if ((usage->hid & HID_USAGE_PAGE) == HID_UP_BUTTON) |
| 453 | td->buttons_count++; |
| 454 | |
| 455 | if (usage->usage_index) |
| 456 | prev_usage = &field->usage[usage->usage_index - 1]; |
| 457 | |
| 458 | switch (usage->hid & HID_USAGE_PAGE) { |
| 459 | |
| 460 | case HID_UP_GENDESK: |
| 461 | switch (usage->hid) { |
| 462 | case HID_GD_X: |
| 463 | if (prev_usage && (prev_usage->hid == usage->hid)) { |
| 464 | hid_map_usage(hi, usage, bit, max, |
| 465 | EV_ABS, ABS_MT_TOOL_X); |
| 466 | set_abs(hi->input, ABS_MT_TOOL_X, field, |
| 467 | cls->sn_move); |
| 468 | } else { |
| 469 | hid_map_usage(hi, usage, bit, max, |
| 470 | EV_ABS, ABS_MT_POSITION_X); |
| 471 | set_abs(hi->input, ABS_MT_POSITION_X, field, |
| 472 | cls->sn_move); |
| 473 | } |
| 474 | |
| 475 | mt_store_field(usage, td, hi); |
| 476 | return 1; |
| 477 | case HID_GD_Y: |
| 478 | if (prev_usage && (prev_usage->hid == usage->hid)) { |
| 479 | hid_map_usage(hi, usage, bit, max, |
| 480 | EV_ABS, ABS_MT_TOOL_Y); |
| 481 | set_abs(hi->input, ABS_MT_TOOL_Y, field, |
| 482 | cls->sn_move); |
| 483 | } else { |
| 484 | hid_map_usage(hi, usage, bit, max, |
| 485 | EV_ABS, ABS_MT_POSITION_Y); |
| 486 | set_abs(hi->input, ABS_MT_POSITION_Y, field, |
| 487 | cls->sn_move); |
| 488 | } |
| 489 | |
| 490 | mt_store_field(usage, td, hi); |
| 491 | return 1; |
| 492 | } |
| 493 | return 0; |
| 494 | |
| 495 | case HID_UP_DIGITIZER: |
| 496 | switch (usage->hid) { |
| 497 | case HID_DG_INRANGE: |
| 498 | if (cls->quirks & MT_QUIRK_HOVERING) { |
| 499 | hid_map_usage(hi, usage, bit, max, |
| 500 | EV_ABS, ABS_MT_DISTANCE); |
| 501 | input_set_abs_params(hi->input, |
| 502 | ABS_MT_DISTANCE, 0, 1, 0, 0); |
| 503 | } |
| 504 | mt_store_field(usage, td, hi); |
| 505 | return 1; |
| 506 | case HID_DG_CONFIDENCE: |
| 507 | if (cls->name == MT_CLS_WIN_8 && |
| 508 | field->application == HID_DG_TOUCHPAD) |
| 509 | cls->quirks |= MT_QUIRK_CONFIDENCE; |
| 510 | mt_store_field(usage, td, hi); |
| 511 | return 1; |
| 512 | case HID_DG_TIPSWITCH: |
| 513 | hid_map_usage(hi, usage, bit, max, EV_KEY, BTN_TOUCH); |
| 514 | input_set_capability(hi->input, EV_KEY, BTN_TOUCH); |
| 515 | mt_store_field(usage, td, hi); |
| 516 | return 1; |
| 517 | case HID_DG_CONTACTID: |
| 518 | mt_store_field(usage, td, hi); |
| 519 | td->touches_by_report++; |
| 520 | td->mt_report_id = field->report->id; |
| 521 | return 1; |
| 522 | case HID_DG_WIDTH: |
| 523 | hid_map_usage(hi, usage, bit, max, |
| 524 | EV_ABS, ABS_MT_TOUCH_MAJOR); |
| 525 | if (!(cls->quirks & MT_QUIRK_NO_AREA)) |
| 526 | set_abs(hi->input, ABS_MT_TOUCH_MAJOR, field, |
| 527 | cls->sn_width); |
| 528 | mt_store_field(usage, td, hi); |
| 529 | return 1; |
| 530 | case HID_DG_HEIGHT: |
| 531 | hid_map_usage(hi, usage, bit, max, |
| 532 | EV_ABS, ABS_MT_TOUCH_MINOR); |
| 533 | if (!(cls->quirks & MT_QUIRK_NO_AREA)) { |
| 534 | set_abs(hi->input, ABS_MT_TOUCH_MINOR, field, |
| 535 | cls->sn_height); |
| 536 | input_set_abs_params(hi->input, |
| 537 | ABS_MT_ORIENTATION, 0, 1, 0, 0); |
| 538 | } |
| 539 | mt_store_field(usage, td, hi); |
| 540 | return 1; |
| 541 | case HID_DG_TIPPRESSURE: |
| 542 | hid_map_usage(hi, usage, bit, max, |
| 543 | EV_ABS, ABS_MT_PRESSURE); |
| 544 | set_abs(hi->input, ABS_MT_PRESSURE, field, |
| 545 | cls->sn_pressure); |
| 546 | mt_store_field(usage, td, hi); |
| 547 | return 1; |
| 548 | case HID_DG_CONTACTCOUNT: |
| 549 | /* Ignore if indexes are out of bounds. */ |
| 550 | if (field->index >= field->report->maxfield || |
| 551 | usage->usage_index >= field->report_count) |
| 552 | return 1; |
| 553 | td->cc_index = field->index; |
| 554 | td->cc_value_index = usage->usage_index; |
| 555 | return 1; |
| 556 | case HID_DG_CONTACTMAX: |
| 557 | /* we don't set td->last_slot_field as contactcount and |
| 558 | * contact max are global to the report */ |
| 559 | return -1; |
| 560 | case HID_DG_TOUCH: |
| 561 | /* Legacy devices use TIPSWITCH and not TOUCH. |
| 562 | * Let's just ignore this field. */ |
| 563 | return -1; |
| 564 | } |
| 565 | /* let hid-input decide for the others */ |
| 566 | return 0; |
| 567 | |
| 568 | case HID_UP_BUTTON: |
| 569 | code = BTN_MOUSE + ((usage->hid - 1) & HID_USAGE); |
| 570 | hid_map_usage(hi, usage, bit, max, EV_KEY, code); |
| 571 | input_set_capability(hi->input, EV_KEY, code); |
| 572 | return 1; |
| 573 | |
| 574 | case 0xff000000: |
| 575 | /* we do not want to map these: no input-oriented meaning */ |
| 576 | return -1; |
| 577 | } |
| 578 | |
| 579 | return 0; |
| 580 | } |
| 581 | |
| 582 | static int mt_touch_input_mapped(struct hid_device *hdev, struct hid_input *hi, |
| 583 | struct hid_field *field, struct hid_usage *usage, |
| 584 | unsigned long **bit, int *max) |
| 585 | { |
| 586 | if (usage->type == EV_KEY || usage->type == EV_ABS) |
| 587 | set_bit(usage->type, hi->input->evbit); |
| 588 | |
| 589 | return -1; |
| 590 | } |
| 591 | |
| 592 | static int mt_compute_slot(struct mt_device *td, struct input_dev *input) |
| 593 | { |
| 594 | __s32 quirks = td->mtclass.quirks; |
| 595 | |
| 596 | if (quirks & MT_QUIRK_SLOT_IS_CONTACTID) |
| 597 | return td->curdata.contactid; |
| 598 | |
| 599 | if (quirks & MT_QUIRK_CYPRESS) |
| 600 | return cypress_compute_slot(td); |
| 601 | |
| 602 | if (quirks & MT_QUIRK_SLOT_IS_CONTACTNUMBER) |
| 603 | return td->num_received; |
| 604 | |
| 605 | if (quirks & MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE) |
| 606 | return td->curdata.contactid - 1; |
| 607 | |
| 608 | return input_mt_get_slot_by_key(input, td->curdata.contactid); |
| 609 | } |
| 610 | |
| 611 | /* |
| 612 | * this function is called when a whole contact has been processed, |
| 613 | * so that it can assign it to a slot and store the data there |
| 614 | */ |
| 615 | static void mt_complete_slot(struct mt_device *td, struct input_dev *input) |
| 616 | { |
| 617 | if ((td->mtclass.quirks & MT_QUIRK_CONTACT_CNT_ACCURATE) && |
| 618 | td->num_received >= td->num_expected) |
| 619 | return; |
| 620 | |
| 621 | if (td->curvalid || (td->mtclass.quirks & MT_QUIRK_ALWAYS_VALID)) { |
| 622 | int active; |
| 623 | int slotnum = mt_compute_slot(td, input); |
| 624 | struct mt_slot *s = &td->curdata; |
| 625 | struct input_mt *mt = input->mt; |
| 626 | |
| 627 | if (slotnum < 0 || slotnum >= td->maxcontacts) |
| 628 | return; |
| 629 | |
| 630 | if ((td->mtclass.quirks & MT_QUIRK_IGNORE_DUPLICATES) && mt) { |
| 631 | struct input_mt_slot *slot = &mt->slots[slotnum]; |
| 632 | if (input_mt_is_active(slot) && |
| 633 | input_mt_is_used(mt, slot)) |
| 634 | return; |
| 635 | } |
| 636 | |
| 637 | if (!(td->mtclass.quirks & MT_QUIRK_CONFIDENCE)) |
| 638 | s->confidence_state = 1; |
| 639 | active = (s->touch_state || s->inrange_state) && |
| 640 | s->confidence_state; |
| 641 | |
| 642 | input_mt_slot(input, slotnum); |
| 643 | input_mt_report_slot_state(input, MT_TOOL_FINGER, active); |
| 644 | if (active) { |
| 645 | /* this finger is in proximity of the sensor */ |
| 646 | int wide = (s->w > s->h); |
| 647 | /* divided by two to match visual scale of touch */ |
| 648 | int major = max(s->w, s->h) >> 1; |
| 649 | int minor = min(s->w, s->h) >> 1; |
| 650 | |
| 651 | input_event(input, EV_ABS, ABS_MT_POSITION_X, s->x); |
| 652 | input_event(input, EV_ABS, ABS_MT_POSITION_Y, s->y); |
| 653 | input_event(input, EV_ABS, ABS_MT_TOOL_X, s->cx); |
| 654 | input_event(input, EV_ABS, ABS_MT_TOOL_Y, s->cy); |
| 655 | input_event(input, EV_ABS, ABS_MT_DISTANCE, |
| 656 | !s->touch_state); |
| 657 | input_event(input, EV_ABS, ABS_MT_ORIENTATION, wide); |
| 658 | input_event(input, EV_ABS, ABS_MT_PRESSURE, s->p); |
| 659 | input_event(input, EV_ABS, ABS_MT_TOUCH_MAJOR, major); |
| 660 | input_event(input, EV_ABS, ABS_MT_TOUCH_MINOR, minor); |
| 661 | } |
| 662 | } |
| 663 | |
| 664 | td->num_received++; |
| 665 | } |
| 666 | |
| 667 | /* |
| 668 | * this function is called when a whole packet has been received and processed, |
| 669 | * so that it can decide what to send to the input layer. |
| 670 | */ |
| 671 | static void mt_sync_frame(struct mt_device *td, struct input_dev *input) |
| 672 | { |
| 673 | input_mt_sync_frame(input); |
| 674 | input_sync(input); |
| 675 | td->num_received = 0; |
| 676 | } |
| 677 | |
| 678 | static int mt_touch_event(struct hid_device *hid, struct hid_field *field, |
| 679 | struct hid_usage *usage, __s32 value) |
| 680 | { |
| 681 | /* we will handle the hidinput part later, now remains hiddev */ |
| 682 | if (hid->claimed & HID_CLAIMED_HIDDEV && hid->hiddev_hid_event) |
| 683 | hid->hiddev_hid_event(hid, field, usage, value); |
| 684 | |
| 685 | return 1; |
| 686 | } |
| 687 | |
| 688 | static void mt_process_mt_event(struct hid_device *hid, struct hid_field *field, |
| 689 | struct hid_usage *usage, __s32 value) |
| 690 | { |
| 691 | struct mt_device *td = hid_get_drvdata(hid); |
| 692 | __s32 quirks = td->mtclass.quirks; |
| 693 | struct input_dev *input = field->hidinput->input; |
| 694 | |
| 695 | if (hid->claimed & HID_CLAIMED_INPUT) { |
| 696 | switch (usage->hid) { |
| 697 | case HID_DG_INRANGE: |
| 698 | if (quirks & MT_QUIRK_VALID_IS_INRANGE) |
| 699 | td->curvalid = value; |
| 700 | if (quirks & MT_QUIRK_HOVERING) |
| 701 | td->curdata.inrange_state = value; |
| 702 | break; |
| 703 | case HID_DG_TIPSWITCH: |
| 704 | if (quirks & MT_QUIRK_NOT_SEEN_MEANS_UP) |
| 705 | td->curvalid = value; |
| 706 | td->curdata.touch_state = value; |
| 707 | break; |
| 708 | case HID_DG_CONFIDENCE: |
| 709 | if (quirks & MT_QUIRK_CONFIDENCE) |
| 710 | td->curdata.confidence_state = value; |
| 711 | if (quirks & MT_QUIRK_VALID_IS_CONFIDENCE) |
| 712 | td->curvalid = value; |
| 713 | break; |
| 714 | case HID_DG_CONTACTID: |
| 715 | td->curdata.contactid = value; |
| 716 | break; |
| 717 | case HID_DG_TIPPRESSURE: |
| 718 | td->curdata.p = value; |
| 719 | break; |
| 720 | case HID_GD_X: |
| 721 | if (usage->code == ABS_MT_TOOL_X) |
| 722 | td->curdata.cx = value; |
| 723 | else |
| 724 | td->curdata.x = value; |
| 725 | break; |
| 726 | case HID_GD_Y: |
| 727 | if (usage->code == ABS_MT_TOOL_Y) |
| 728 | td->curdata.cy = value; |
| 729 | else |
| 730 | td->curdata.y = value; |
| 731 | break; |
| 732 | case HID_DG_WIDTH: |
| 733 | td->curdata.w = value; |
| 734 | break; |
| 735 | case HID_DG_HEIGHT: |
| 736 | td->curdata.h = value; |
| 737 | break; |
| 738 | case HID_DG_CONTACTCOUNT: |
| 739 | break; |
| 740 | case HID_DG_TOUCH: |
| 741 | /* do nothing */ |
| 742 | break; |
| 743 | |
| 744 | default: |
| 745 | if (usage->type) |
| 746 | input_event(input, usage->type, usage->code, |
| 747 | value); |
| 748 | return; |
| 749 | } |
| 750 | |
| 751 | if (usage->usage_index + 1 == field->report_count) { |
| 752 | /* we only take into account the last report. */ |
| 753 | if (usage->hid == td->last_slot_field) |
| 754 | mt_complete_slot(td, field->hidinput->input); |
| 755 | } |
| 756 | |
| 757 | } |
| 758 | } |
| 759 | |
| 760 | static void mt_touch_report(struct hid_device *hid, struct hid_report *report) |
| 761 | { |
| 762 | struct mt_device *td = hid_get_drvdata(hid); |
| 763 | struct hid_field *field; |
| 764 | unsigned count; |
| 765 | int r, n; |
| 766 | |
| 767 | /* |
| 768 | * Includes multi-packet support where subsequent |
| 769 | * packets are sent with zero contactcount. |
| 770 | */ |
| 771 | if (td->cc_index >= 0) { |
| 772 | struct hid_field *field = report->field[td->cc_index]; |
| 773 | int value = field->value[td->cc_value_index]; |
| 774 | if (value) |
| 775 | td->num_expected = value; |
| 776 | } |
| 777 | |
| 778 | for (r = 0; r < report->maxfield; r++) { |
| 779 | field = report->field[r]; |
| 780 | count = field->report_count; |
| 781 | |
| 782 | if (!(HID_MAIN_ITEM_VARIABLE & field->flags)) |
| 783 | continue; |
| 784 | |
| 785 | for (n = 0; n < count; n++) |
| 786 | mt_process_mt_event(hid, field, &field->usage[n], |
| 787 | field->value[n]); |
| 788 | } |
| 789 | |
| 790 | if (td->num_received >= td->num_expected) |
| 791 | mt_sync_frame(td, report->field[0]->hidinput->input); |
| 792 | } |
| 793 | |
| 794 | static int mt_touch_input_configured(struct hid_device *hdev, |
| 795 | struct hid_input *hi) |
| 796 | { |
| 797 | struct mt_device *td = hid_get_drvdata(hdev); |
| 798 | struct mt_class *cls = &td->mtclass; |
| 799 | struct input_dev *input = hi->input; |
| 800 | int ret; |
| 801 | |
| 802 | if (!td->maxcontacts) |
| 803 | td->maxcontacts = MT_DEFAULT_MAXCONTACT; |
| 804 | |
| 805 | mt_post_parse(td); |
| 806 | if (td->serial_maybe) |
| 807 | mt_post_parse_default_settings(td); |
| 808 | |
| 809 | if (cls->is_indirect) |
| 810 | td->mt_flags |= INPUT_MT_POINTER; |
| 811 | |
| 812 | if (cls->quirks & MT_QUIRK_NOT_SEEN_MEANS_UP) |
| 813 | td->mt_flags |= INPUT_MT_DROP_UNUSED; |
| 814 | |
| 815 | /* check for clickpads */ |
| 816 | if ((td->mt_flags & INPUT_MT_POINTER) && (td->buttons_count == 1)) |
| 817 | td->is_buttonpad = true; |
| 818 | |
| 819 | if (td->is_buttonpad) |
| 820 | __set_bit(INPUT_PROP_BUTTONPAD, input->propbit); |
| 821 | |
| 822 | ret = input_mt_init_slots(input, td->maxcontacts, td->mt_flags); |
| 823 | if (ret) |
| 824 | return ret; |
| 825 | |
| 826 | td->mt_flags = 0; |
| 827 | return 0; |
| 828 | } |
| 829 | |
| 830 | static int mt_input_mapping(struct hid_device *hdev, struct hid_input *hi, |
| 831 | struct hid_field *field, struct hid_usage *usage, |
| 832 | unsigned long **bit, int *max) |
| 833 | { |
| 834 | struct mt_device *td = hid_get_drvdata(hdev); |
| 835 | |
| 836 | /* |
| 837 | * If mtclass.export_all_inputs is not set, only map fields from |
| 838 | * TouchScreen or TouchPad collections. We need to ignore fields |
| 839 | * that belong to other collections such as Mouse that might have |
| 840 | * the same GenericDesktop usages. |
| 841 | */ |
| 842 | if (!td->mtclass.export_all_inputs && |
| 843 | field->application != HID_DG_TOUCHSCREEN && |
| 844 | field->application != HID_DG_PEN && |
| 845 | field->application != HID_DG_TOUCHPAD) |
| 846 | return -1; |
| 847 | |
| 848 | /* |
| 849 | * some egalax touchscreens have "application == HID_DG_TOUCHSCREEN" |
| 850 | * for the stylus. |
| 851 | * The check for mt_report_id ensures we don't process |
| 852 | * HID_DG_CONTACTCOUNT from the pen report as it is outside the physical |
| 853 | * collection, but within the report ID. |
| 854 | */ |
| 855 | if (field->physical == HID_DG_STYLUS) |
| 856 | return 0; |
| 857 | else if ((field->physical == 0) && |
| 858 | (field->report->id != td->mt_report_id) && |
| 859 | (td->mt_report_id != -1)) |
| 860 | return 0; |
| 861 | |
| 862 | if (field->application == HID_DG_TOUCHSCREEN || |
| 863 | field->application == HID_DG_TOUCHPAD) |
| 864 | return mt_touch_input_mapping(hdev, hi, field, usage, bit, max); |
| 865 | |
| 866 | /* let hid-core decide for the others */ |
| 867 | return 0; |
| 868 | } |
| 869 | |
| 870 | static int mt_input_mapped(struct hid_device *hdev, struct hid_input *hi, |
| 871 | struct hid_field *field, struct hid_usage *usage, |
| 872 | unsigned long **bit, int *max) |
| 873 | { |
| 874 | /* |
| 875 | * some egalax touchscreens have "application == HID_DG_TOUCHSCREEN" |
| 876 | * for the stylus. |
| 877 | */ |
| 878 | if (field->physical == HID_DG_STYLUS) |
| 879 | return 0; |
| 880 | |
| 881 | if (field->application == HID_DG_TOUCHSCREEN || |
| 882 | field->application == HID_DG_TOUCHPAD) |
| 883 | return mt_touch_input_mapped(hdev, hi, field, usage, bit, max); |
| 884 | |
| 885 | /* let hid-core decide for the others */ |
| 886 | return 0; |
| 887 | } |
| 888 | |
| 889 | static int mt_event(struct hid_device *hid, struct hid_field *field, |
| 890 | struct hid_usage *usage, __s32 value) |
| 891 | { |
| 892 | struct mt_device *td = hid_get_drvdata(hid); |
| 893 | |
| 894 | if (field->report->id == td->mt_report_id) |
| 895 | return mt_touch_event(hid, field, usage, value); |
| 896 | |
| 897 | return 0; |
| 898 | } |
| 899 | |
| 900 | static void mt_report(struct hid_device *hid, struct hid_report *report) |
| 901 | { |
| 902 | struct mt_device *td = hid_get_drvdata(hid); |
| 903 | struct hid_field *field = report->field[0]; |
| 904 | |
| 905 | if (!(hid->claimed & HID_CLAIMED_INPUT)) |
| 906 | return; |
| 907 | |
| 908 | if (report->id == td->mt_report_id) |
| 909 | return mt_touch_report(hid, report); |
| 910 | |
| 911 | if (field && field->hidinput && field->hidinput->input) |
| 912 | input_sync(field->hidinput->input); |
| 913 | } |
| 914 | |
| 915 | static void mt_set_input_mode(struct hid_device *hdev) |
| 916 | { |
| 917 | struct mt_device *td = hid_get_drvdata(hdev); |
| 918 | struct hid_report *r; |
| 919 | struct hid_report_enum *re; |
| 920 | struct mt_class *cls = &td->mtclass; |
| 921 | char *buf; |
| 922 | int report_len; |
| 923 | |
| 924 | if (td->inputmode < 0) |
| 925 | return; |
| 926 | |
| 927 | re = &(hdev->report_enum[HID_FEATURE_REPORT]); |
| 928 | r = re->report_id_hash[td->inputmode]; |
| 929 | if (r) { |
| 930 | if (cls->quirks & MT_QUIRK_FORCE_GET_FEATURE) { |
| 931 | report_len = hid_report_len(r); |
| 932 | buf = hid_alloc_report_buf(r, GFP_KERNEL); |
| 933 | if (!buf) { |
| 934 | hid_err(hdev, "failed to allocate buffer for report\n"); |
| 935 | return; |
| 936 | } |
| 937 | hid_hw_raw_request(hdev, r->id, buf, report_len, |
| 938 | HID_FEATURE_REPORT, |
| 939 | HID_REQ_GET_REPORT); |
| 940 | kfree(buf); |
| 941 | } |
| 942 | r->field[0]->value[td->inputmode_index] = td->inputmode_value; |
| 943 | hid_hw_request(hdev, r, HID_REQ_SET_REPORT); |
| 944 | } |
| 945 | } |
| 946 | |
| 947 | static void mt_set_maxcontacts(struct hid_device *hdev) |
| 948 | { |
| 949 | struct mt_device *td = hid_get_drvdata(hdev); |
| 950 | struct hid_report *r; |
| 951 | struct hid_report_enum *re; |
| 952 | int fieldmax, max; |
| 953 | |
| 954 | if (td->maxcontact_report_id < 0) |
| 955 | return; |
| 956 | |
| 957 | if (!td->mtclass.maxcontacts) |
| 958 | return; |
| 959 | |
| 960 | re = &hdev->report_enum[HID_FEATURE_REPORT]; |
| 961 | r = re->report_id_hash[td->maxcontact_report_id]; |
| 962 | if (r) { |
| 963 | max = td->mtclass.maxcontacts; |
| 964 | fieldmax = r->field[0]->logical_maximum; |
| 965 | max = min(fieldmax, max); |
| 966 | if (r->field[0]->value[0] != max) { |
| 967 | r->field[0]->value[0] = max; |
| 968 | hid_hw_request(hdev, r, HID_REQ_SET_REPORT); |
| 969 | } |
| 970 | } |
| 971 | } |
| 972 | |
| 973 | static void mt_post_parse_default_settings(struct mt_device *td) |
| 974 | { |
| 975 | __s32 quirks = td->mtclass.quirks; |
| 976 | |
| 977 | /* unknown serial device needs special quirks */ |
| 978 | if (td->touches_by_report == 1) { |
| 979 | quirks |= MT_QUIRK_ALWAYS_VALID; |
| 980 | quirks &= ~MT_QUIRK_NOT_SEEN_MEANS_UP; |
| 981 | quirks &= ~MT_QUIRK_VALID_IS_INRANGE; |
| 982 | quirks &= ~MT_QUIRK_VALID_IS_CONFIDENCE; |
| 983 | quirks &= ~MT_QUIRK_CONTACT_CNT_ACCURATE; |
| 984 | } |
| 985 | |
| 986 | td->mtclass.quirks = quirks; |
| 987 | } |
| 988 | |
| 989 | static void mt_post_parse(struct mt_device *td) |
| 990 | { |
| 991 | struct mt_fields *f = td->fields; |
| 992 | struct mt_class *cls = &td->mtclass; |
| 993 | |
| 994 | if (td->touches_by_report > 0) { |
| 995 | int field_count_per_touch = f->length / td->touches_by_report; |
| 996 | td->last_slot_field = f->usages[field_count_per_touch - 1]; |
| 997 | } |
| 998 | |
| 999 | if (td->cc_index < 0) |
| 1000 | cls->quirks &= ~MT_QUIRK_CONTACT_CNT_ACCURATE; |
| 1001 | } |
| 1002 | |
| 1003 | static int mt_input_configured(struct hid_device *hdev, struct hid_input *hi) |
| 1004 | { |
| 1005 | struct mt_device *td = hid_get_drvdata(hdev); |
| 1006 | char *name; |
| 1007 | const char *suffix = NULL; |
| 1008 | struct hid_field *field = hi->report->field[0]; |
| 1009 | int ret; |
| 1010 | |
| 1011 | if (hi->report->id == td->mt_report_id) { |
| 1012 | ret = mt_touch_input_configured(hdev, hi); |
| 1013 | if (ret) |
| 1014 | return ret; |
| 1015 | } |
| 1016 | |
| 1017 | /* |
| 1018 | * some egalax touchscreens have "application == HID_DG_TOUCHSCREEN" |
| 1019 | * for the stylus. Check this first, and then rely on the application |
| 1020 | * field. |
| 1021 | */ |
| 1022 | if (hi->report->field[0]->physical == HID_DG_STYLUS) { |
| 1023 | suffix = "Pen"; |
| 1024 | /* force BTN_STYLUS to allow tablet matching in udev */ |
| 1025 | __set_bit(BTN_STYLUS, hi->input->keybit); |
| 1026 | } else { |
| 1027 | switch (field->application) { |
| 1028 | case HID_GD_KEYBOARD: |
| 1029 | suffix = "Keyboard"; |
| 1030 | break; |
| 1031 | case HID_GD_KEYPAD: |
| 1032 | suffix = "Keypad"; |
| 1033 | break; |
| 1034 | case HID_GD_MOUSE: |
| 1035 | suffix = "Mouse"; |
| 1036 | break; |
| 1037 | case HID_DG_STYLUS: |
| 1038 | suffix = "Pen"; |
| 1039 | /* force BTN_STYLUS to allow tablet matching in udev */ |
| 1040 | __set_bit(BTN_STYLUS, hi->input->keybit); |
| 1041 | break; |
| 1042 | case HID_DG_TOUCHSCREEN: |
| 1043 | /* we do not set suffix = "Touchscreen" */ |
| 1044 | break; |
| 1045 | case HID_DG_TOUCHPAD: |
| 1046 | suffix = "Touchpad"; |
| 1047 | break; |
| 1048 | case HID_GD_SYSTEM_CONTROL: |
| 1049 | suffix = "System Control"; |
| 1050 | break; |
| 1051 | case HID_CP_CONSUMER_CONTROL: |
| 1052 | suffix = "Consumer Control"; |
| 1053 | break; |
| 1054 | default: |
| 1055 | suffix = "UNKNOWN"; |
| 1056 | break; |
| 1057 | } |
| 1058 | } |
| 1059 | |
| 1060 | if (suffix) { |
| 1061 | name = devm_kzalloc(&hi->input->dev, |
| 1062 | strlen(hdev->name) + strlen(suffix) + 2, |
| 1063 | GFP_KERNEL); |
| 1064 | if (name) { |
| 1065 | sprintf(name, "%s %s", hdev->name, suffix); |
| 1066 | hi->input->name = name; |
| 1067 | } |
| 1068 | } |
| 1069 | |
| 1070 | return 0; |
| 1071 | } |
| 1072 | |
| 1073 | static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id) |
| 1074 | { |
| 1075 | int ret, i; |
| 1076 | struct mt_device *td; |
| 1077 | struct mt_class *mtclass = mt_classes; /* MT_CLS_DEFAULT */ |
| 1078 | |
| 1079 | for (i = 0; mt_classes[i].name ; i++) { |
| 1080 | if (id->driver_data == mt_classes[i].name) { |
| 1081 | mtclass = &(mt_classes[i]); |
| 1082 | break; |
| 1083 | } |
| 1084 | } |
| 1085 | |
| 1086 | /* This allows the driver to correctly support devices |
| 1087 | * that emit events over several HID messages. |
| 1088 | */ |
| 1089 | hdev->quirks |= HID_QUIRK_NO_INPUT_SYNC; |
| 1090 | |
| 1091 | /* |
| 1092 | * This allows the driver to handle different input sensors |
| 1093 | * that emits events through different reports on the same HID |
| 1094 | * device. |
| 1095 | */ |
| 1096 | hdev->quirks |= HID_QUIRK_MULTI_INPUT; |
| 1097 | hdev->quirks |= HID_QUIRK_NO_EMPTY_INPUT; |
| 1098 | |
| 1099 | /* |
| 1100 | * Handle special quirks for Windows 8 certified devices. |
| 1101 | */ |
| 1102 | if (id->group == HID_GROUP_MULTITOUCH_WIN_8) |
| 1103 | /* |
| 1104 | * Some multitouch screens do not like to be polled for input |
| 1105 | * reports. Fortunately, the Win8 spec says that all touches |
| 1106 | * should be sent during each report, making the initialization |
| 1107 | * of input reports unnecessary. |
| 1108 | * |
| 1109 | * In addition some touchpads do not behave well if we read |
| 1110 | * all feature reports from them. Instead we prevent |
| 1111 | * initial report fetching and then selectively fetch each |
| 1112 | * report we are interested in. |
| 1113 | */ |
| 1114 | hdev->quirks |= HID_QUIRK_NO_INIT_REPORTS; |
| 1115 | |
| 1116 | td = devm_kzalloc(&hdev->dev, sizeof(struct mt_device), GFP_KERNEL); |
| 1117 | if (!td) { |
| 1118 | dev_err(&hdev->dev, "cannot allocate multitouch data\n"); |
| 1119 | return -ENOMEM; |
| 1120 | } |
| 1121 | td->mtclass = *mtclass; |
| 1122 | td->inputmode = -1; |
| 1123 | td->maxcontact_report_id = -1; |
| 1124 | td->inputmode_value = MT_INPUTMODE_TOUCHSCREEN; |
| 1125 | td->cc_index = -1; |
| 1126 | td->mt_report_id = -1; |
| 1127 | hid_set_drvdata(hdev, td); |
| 1128 | |
| 1129 | td->fields = devm_kzalloc(&hdev->dev, sizeof(struct mt_fields), |
| 1130 | GFP_KERNEL); |
| 1131 | if (!td->fields) { |
| 1132 | dev_err(&hdev->dev, "cannot allocate multitouch fields data\n"); |
| 1133 | return -ENOMEM; |
| 1134 | } |
| 1135 | |
| 1136 | if (id->vendor == HID_ANY_ID && id->product == HID_ANY_ID) |
| 1137 | td->serial_maybe = true; |
| 1138 | |
| 1139 | ret = hid_parse(hdev); |
| 1140 | if (ret != 0) |
| 1141 | return ret; |
| 1142 | |
| 1143 | ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT); |
| 1144 | if (ret) |
| 1145 | return ret; |
| 1146 | |
| 1147 | ret = sysfs_create_group(&hdev->dev.kobj, &mt_attribute_group); |
| 1148 | if (ret) |
| 1149 | dev_warn(&hdev->dev, "Cannot allocate sysfs group for %s\n", |
| 1150 | hdev->name); |
| 1151 | |
| 1152 | mt_set_maxcontacts(hdev); |
| 1153 | mt_set_input_mode(hdev); |
| 1154 | |
| 1155 | /* release .fields memory as it is not used anymore */ |
| 1156 | devm_kfree(&hdev->dev, td->fields); |
| 1157 | td->fields = NULL; |
| 1158 | |
| 1159 | return 0; |
| 1160 | } |
| 1161 | |
| 1162 | #ifdef CONFIG_PM |
| 1163 | static void mt_release_contacts(struct hid_device *hid) |
| 1164 | { |
| 1165 | struct hid_input *hidinput; |
| 1166 | |
| 1167 | list_for_each_entry(hidinput, &hid->inputs, list) { |
| 1168 | struct input_dev *input_dev = hidinput->input; |
| 1169 | struct input_mt *mt = input_dev->mt; |
| 1170 | int i; |
| 1171 | |
| 1172 | if (mt) { |
| 1173 | for (i = 0; i < mt->num_slots; i++) { |
| 1174 | input_mt_slot(input_dev, i); |
| 1175 | input_mt_report_slot_state(input_dev, |
| 1176 | MT_TOOL_FINGER, |
| 1177 | false); |
| 1178 | } |
| 1179 | input_mt_sync_frame(input_dev); |
| 1180 | input_sync(input_dev); |
| 1181 | } |
| 1182 | } |
| 1183 | } |
| 1184 | |
| 1185 | static int mt_reset_resume(struct hid_device *hdev) |
| 1186 | { |
| 1187 | mt_release_contacts(hdev); |
| 1188 | mt_set_maxcontacts(hdev); |
| 1189 | mt_set_input_mode(hdev); |
| 1190 | return 0; |
| 1191 | } |
| 1192 | |
| 1193 | static int mt_resume(struct hid_device *hdev) |
| 1194 | { |
| 1195 | /* Some Elan legacy devices require SET_IDLE to be set on resume. |
| 1196 | * It should be safe to send it to other devices too. |
| 1197 | * Tested on 3M, Stantum, Cypress, Zytronic, eGalax, and Elan panels. */ |
| 1198 | |
| 1199 | hid_hw_idle(hdev, 0, 0, HID_REQ_SET_IDLE); |
| 1200 | |
| 1201 | return 0; |
| 1202 | } |
| 1203 | #endif |
| 1204 | |
| 1205 | static void mt_remove(struct hid_device *hdev) |
| 1206 | { |
| 1207 | sysfs_remove_group(&hdev->dev.kobj, &mt_attribute_group); |
| 1208 | hid_hw_stop(hdev); |
| 1209 | } |
| 1210 | |
| 1211 | /* |
| 1212 | * This list contains only: |
| 1213 | * - VID/PID of products not working with the default multitouch handling |
| 1214 | * - 2 generic rules. |
| 1215 | * So there is no point in adding here any device with MT_CLS_DEFAULT. |
| 1216 | */ |
| 1217 | static const struct hid_device_id mt_devices[] = { |
| 1218 | |
| 1219 | /* 3M panels */ |
| 1220 | { .driver_data = MT_CLS_3M, |
| 1221 | MT_USB_DEVICE(USB_VENDOR_ID_3M, |
| 1222 | USB_DEVICE_ID_3M1968) }, |
| 1223 | { .driver_data = MT_CLS_3M, |
| 1224 | MT_USB_DEVICE(USB_VENDOR_ID_3M, |
| 1225 | USB_DEVICE_ID_3M2256) }, |
| 1226 | { .driver_data = MT_CLS_3M, |
| 1227 | MT_USB_DEVICE(USB_VENDOR_ID_3M, |
| 1228 | USB_DEVICE_ID_3M3266) }, |
| 1229 | |
| 1230 | /* Anton devices */ |
| 1231 | { .driver_data = MT_CLS_EXPORT_ALL_INPUTS, |
| 1232 | MT_USB_DEVICE(USB_VENDOR_ID_ANTON, |
| 1233 | USB_DEVICE_ID_ANTON_TOUCH_PAD) }, |
| 1234 | |
| 1235 | /* Atmel panels */ |
| 1236 | { .driver_data = MT_CLS_SERIAL, |
| 1237 | MT_USB_DEVICE(USB_VENDOR_ID_ATMEL, |
| 1238 | USB_DEVICE_ID_ATMEL_MXT_DIGITIZER) }, |
| 1239 | |
| 1240 | /* Baanto multitouch devices */ |
| 1241 | { .driver_data = MT_CLS_NSMU, |
| 1242 | MT_USB_DEVICE(USB_VENDOR_ID_BAANTO, |
| 1243 | USB_DEVICE_ID_BAANTO_MT_190W2) }, |
| 1244 | |
| 1245 | /* Cando panels */ |
| 1246 | { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER, |
| 1247 | MT_USB_DEVICE(USB_VENDOR_ID_CANDO, |
| 1248 | USB_DEVICE_ID_CANDO_MULTI_TOUCH) }, |
| 1249 | { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER, |
| 1250 | MT_USB_DEVICE(USB_VENDOR_ID_CANDO, |
| 1251 | USB_DEVICE_ID_CANDO_MULTI_TOUCH_15_6) }, |
| 1252 | |
| 1253 | /* Chunghwa Telecom touch panels */ |
| 1254 | { .driver_data = MT_CLS_NSMU, |
| 1255 | MT_USB_DEVICE(USB_VENDOR_ID_CHUNGHWAT, |
| 1256 | USB_DEVICE_ID_CHUNGHWAT_MULTITOUCH) }, |
| 1257 | |
| 1258 | /* CJTouch panels */ |
| 1259 | { .driver_data = MT_CLS_NSMU, |
| 1260 | MT_USB_DEVICE(USB_VENDOR_ID_CJTOUCH, |
| 1261 | USB_DEVICE_ID_CJTOUCH_MULTI_TOUCH_0020) }, |
| 1262 | { .driver_data = MT_CLS_NSMU, |
| 1263 | MT_USB_DEVICE(USB_VENDOR_ID_CJTOUCH, |
| 1264 | USB_DEVICE_ID_CJTOUCH_MULTI_TOUCH_0040) }, |
| 1265 | |
| 1266 | /* CVTouch panels */ |
| 1267 | { .driver_data = MT_CLS_NSMU, |
| 1268 | MT_USB_DEVICE(USB_VENDOR_ID_CVTOUCH, |
| 1269 | USB_DEVICE_ID_CVTOUCH_SCREEN) }, |
| 1270 | |
| 1271 | /* eGalax devices (resistive) */ |
| 1272 | { .driver_data = MT_CLS_EGALAX, |
| 1273 | MT_USB_DEVICE(USB_VENDOR_ID_DWAV, |
| 1274 | USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_480D) }, |
| 1275 | { .driver_data = MT_CLS_EGALAX, |
| 1276 | MT_USB_DEVICE(USB_VENDOR_ID_DWAV, |
| 1277 | USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_480E) }, |
| 1278 | |
| 1279 | /* eGalax devices (capacitive) */ |
| 1280 | { .driver_data = MT_CLS_EGALAX_SERIAL, |
| 1281 | MT_USB_DEVICE(USB_VENDOR_ID_DWAV, |
| 1282 | USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7207) }, |
| 1283 | { .driver_data = MT_CLS_EGALAX, |
| 1284 | MT_USB_DEVICE(USB_VENDOR_ID_DWAV, |
| 1285 | USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_720C) }, |
| 1286 | { .driver_data = MT_CLS_EGALAX_SERIAL, |
| 1287 | MT_USB_DEVICE(USB_VENDOR_ID_DWAV, |
| 1288 | USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7224) }, |
| 1289 | { .driver_data = MT_CLS_EGALAX_SERIAL, |
| 1290 | MT_USB_DEVICE(USB_VENDOR_ID_DWAV, |
| 1291 | USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_722A) }, |
| 1292 | { .driver_data = MT_CLS_EGALAX_SERIAL, |
| 1293 | MT_USB_DEVICE(USB_VENDOR_ID_DWAV, |
| 1294 | USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_725E) }, |
| 1295 | { .driver_data = MT_CLS_EGALAX_SERIAL, |
| 1296 | MT_USB_DEVICE(USB_VENDOR_ID_DWAV, |
| 1297 | USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7262) }, |
| 1298 | { .driver_data = MT_CLS_EGALAX, |
| 1299 | MT_USB_DEVICE(USB_VENDOR_ID_DWAV, |
| 1300 | USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_726B) }, |
| 1301 | { .driver_data = MT_CLS_EGALAX, |
| 1302 | MT_USB_DEVICE(USB_VENDOR_ID_DWAV, |
| 1303 | USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72A1) }, |
| 1304 | { .driver_data = MT_CLS_EGALAX_SERIAL, |
| 1305 | MT_USB_DEVICE(USB_VENDOR_ID_DWAV, |
| 1306 | USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72AA) }, |
| 1307 | { .driver_data = MT_CLS_EGALAX, |
| 1308 | HID_USB_DEVICE(USB_VENDOR_ID_DWAV, |
| 1309 | USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72C4) }, |
| 1310 | { .driver_data = MT_CLS_EGALAX, |
| 1311 | HID_USB_DEVICE(USB_VENDOR_ID_DWAV, |
| 1312 | USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72D0) }, |
| 1313 | { .driver_data = MT_CLS_EGALAX, |
| 1314 | MT_USB_DEVICE(USB_VENDOR_ID_DWAV, |
| 1315 | USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72FA) }, |
| 1316 | { .driver_data = MT_CLS_EGALAX, |
| 1317 | MT_USB_DEVICE(USB_VENDOR_ID_DWAV, |
| 1318 | USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7302) }, |
| 1319 | { .driver_data = MT_CLS_EGALAX_SERIAL, |
| 1320 | MT_USB_DEVICE(USB_VENDOR_ID_DWAV, |
| 1321 | USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7349) }, |
| 1322 | { .driver_data = MT_CLS_EGALAX_SERIAL, |
| 1323 | MT_USB_DEVICE(USB_VENDOR_ID_DWAV, |
| 1324 | USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_73F7) }, |
| 1325 | { .driver_data = MT_CLS_EGALAX_SERIAL, |
| 1326 | MT_USB_DEVICE(USB_VENDOR_ID_DWAV, |
| 1327 | USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_A001) }, |
| 1328 | |
| 1329 | /* Elitegroup panel */ |
| 1330 | { .driver_data = MT_CLS_SERIAL, |
| 1331 | MT_USB_DEVICE(USB_VENDOR_ID_ELITEGROUP, |
| 1332 | USB_DEVICE_ID_ELITEGROUP_05D8) }, |
| 1333 | |
| 1334 | /* Flatfrog Panels */ |
| 1335 | { .driver_data = MT_CLS_FLATFROG, |
| 1336 | MT_USB_DEVICE(USB_VENDOR_ID_FLATFROG, |
| 1337 | USB_DEVICE_ID_MULTITOUCH_3200) }, |
| 1338 | |
| 1339 | /* FocalTech Panels */ |
| 1340 | { .driver_data = MT_CLS_SERIAL, |
| 1341 | MT_USB_DEVICE(USB_VENDOR_ID_CYGNAL, |
| 1342 | USB_DEVICE_ID_FOCALTECH_FTXXXX_MULTITOUCH) }, |
| 1343 | |
| 1344 | /* GeneralTouch panel */ |
| 1345 | { .driver_data = MT_CLS_GENERALTOUCH_TWOFINGERS, |
| 1346 | MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, |
| 1347 | USB_DEVICE_ID_GENERAL_TOUCH_WIN7_TWOFINGERS) }, |
| 1348 | { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS, |
| 1349 | MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, |
| 1350 | USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PWT_TENFINGERS) }, |
| 1351 | { .driver_data = MT_CLS_GENERALTOUCH_TWOFINGERS, |
| 1352 | MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, |
| 1353 | USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_0101) }, |
| 1354 | { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS, |
| 1355 | MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, |
| 1356 | USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_0102) }, |
| 1357 | { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS, |
| 1358 | MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, |
| 1359 | USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_0106) }, |
| 1360 | { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS, |
| 1361 | MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, |
| 1362 | USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_010A) }, |
| 1363 | { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS, |
| 1364 | MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, |
| 1365 | USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_E100) }, |
| 1366 | |
| 1367 | /* Gametel game controller */ |
| 1368 | { .driver_data = MT_CLS_NSMU, |
| 1369 | MT_BT_DEVICE(USB_VENDOR_ID_FRUCTEL, |
| 1370 | USB_DEVICE_ID_GAMETEL_MT_MODE) }, |
| 1371 | |
| 1372 | /* GoodTouch panels */ |
| 1373 | { .driver_data = MT_CLS_NSMU, |
| 1374 | MT_USB_DEVICE(USB_VENDOR_ID_GOODTOUCH, |
| 1375 | USB_DEVICE_ID_GOODTOUCH_000f) }, |
| 1376 | |
| 1377 | /* Hanvon panels */ |
| 1378 | { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID, |
| 1379 | MT_USB_DEVICE(USB_VENDOR_ID_HANVON_ALT, |
| 1380 | USB_DEVICE_ID_HANVON_ALT_MULTITOUCH) }, |
| 1381 | |
| 1382 | /* Ilitek dual touch panel */ |
| 1383 | { .driver_data = MT_CLS_NSMU, |
| 1384 | MT_USB_DEVICE(USB_VENDOR_ID_ILITEK, |
| 1385 | USB_DEVICE_ID_ILITEK_MULTITOUCH) }, |
| 1386 | |
| 1387 | /* MosArt panels */ |
| 1388 | { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE, |
| 1389 | MT_USB_DEVICE(USB_VENDOR_ID_ASUS, |
| 1390 | USB_DEVICE_ID_ASUS_T91MT)}, |
| 1391 | { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE, |
| 1392 | MT_USB_DEVICE(USB_VENDOR_ID_ASUS, |
| 1393 | USB_DEVICE_ID_ASUSTEK_MULTITOUCH_YFO) }, |
| 1394 | { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE, |
| 1395 | MT_USB_DEVICE(USB_VENDOR_ID_TURBOX, |
| 1396 | USB_DEVICE_ID_TURBOX_TOUCHSCREEN_MOSART) }, |
| 1397 | |
| 1398 | /* Panasonic panels */ |
| 1399 | { .driver_data = MT_CLS_PANASONIC, |
| 1400 | MT_USB_DEVICE(USB_VENDOR_ID_PANASONIC, |
| 1401 | USB_DEVICE_ID_PANABOARD_UBT780) }, |
| 1402 | { .driver_data = MT_CLS_PANASONIC, |
| 1403 | MT_USB_DEVICE(USB_VENDOR_ID_PANASONIC, |
| 1404 | USB_DEVICE_ID_PANABOARD_UBT880) }, |
| 1405 | |
| 1406 | /* Novatek Panel */ |
| 1407 | { .driver_data = MT_CLS_NSMU, |
| 1408 | MT_USB_DEVICE(USB_VENDOR_ID_NOVATEK, |
| 1409 | USB_DEVICE_ID_NOVATEK_PCT) }, |
| 1410 | |
| 1411 | /* Ntrig Panel */ |
| 1412 | { .driver_data = MT_CLS_NSMU, |
| 1413 | HID_DEVICE(BUS_I2C, HID_GROUP_MULTITOUCH_WIN_8, |
| 1414 | USB_VENDOR_ID_NTRIG, 0x1b05) }, |
| 1415 | |
| 1416 | /* PixArt optical touch screen */ |
| 1417 | { .driver_data = MT_CLS_INRANGE_CONTACTNUMBER, |
| 1418 | MT_USB_DEVICE(USB_VENDOR_ID_PIXART, |
| 1419 | USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN) }, |
| 1420 | { .driver_data = MT_CLS_INRANGE_CONTACTNUMBER, |
| 1421 | MT_USB_DEVICE(USB_VENDOR_ID_PIXART, |
| 1422 | USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN1) }, |
| 1423 | { .driver_data = MT_CLS_INRANGE_CONTACTNUMBER, |
| 1424 | MT_USB_DEVICE(USB_VENDOR_ID_PIXART, |
| 1425 | USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN2) }, |
| 1426 | |
| 1427 | /* PixCir-based panels */ |
| 1428 | { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID, |
| 1429 | MT_USB_DEVICE(USB_VENDOR_ID_CANDO, |
| 1430 | USB_DEVICE_ID_CANDO_PIXCIR_MULTI_TOUCH) }, |
| 1431 | |
| 1432 | /* Quanta-based panels */ |
| 1433 | { .driver_data = MT_CLS_CONFIDENCE_CONTACT_ID, |
| 1434 | MT_USB_DEVICE(USB_VENDOR_ID_QUANTA, |
| 1435 | USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3001) }, |
| 1436 | |
| 1437 | /* Stantum panels */ |
| 1438 | { .driver_data = MT_CLS_CONFIDENCE, |
| 1439 | MT_USB_DEVICE(USB_VENDOR_ID_STANTUM_STM, |
| 1440 | USB_DEVICE_ID_MTP_STM)}, |
| 1441 | |
| 1442 | /* TopSeed panels */ |
| 1443 | { .driver_data = MT_CLS_TOPSEED, |
| 1444 | MT_USB_DEVICE(USB_VENDOR_ID_TOPSEED2, |
| 1445 | USB_DEVICE_ID_TOPSEED2_PERIPAD_701) }, |
| 1446 | |
| 1447 | /* Touch International panels */ |
| 1448 | { .driver_data = MT_CLS_NSMU, |
| 1449 | MT_USB_DEVICE(USB_VENDOR_ID_TOUCH_INTL, |
| 1450 | USB_DEVICE_ID_TOUCH_INTL_MULTI_TOUCH) }, |
| 1451 | |
| 1452 | /* Unitec panels */ |
| 1453 | { .driver_data = MT_CLS_NSMU, |
| 1454 | MT_USB_DEVICE(USB_VENDOR_ID_UNITEC, |
| 1455 | USB_DEVICE_ID_UNITEC_USB_TOUCH_0709) }, |
| 1456 | { .driver_data = MT_CLS_NSMU, |
| 1457 | MT_USB_DEVICE(USB_VENDOR_ID_UNITEC, |
| 1458 | USB_DEVICE_ID_UNITEC_USB_TOUCH_0A19) }, |
| 1459 | |
| 1460 | /* VTL panels */ |
| 1461 | { .driver_data = MT_CLS_VTL, |
| 1462 | MT_USB_DEVICE(USB_VENDOR_ID_VTL, |
| 1463 | USB_DEVICE_ID_VTL_MULTITOUCH_FF3F) }, |
| 1464 | |
| 1465 | /* Wistron panels */ |
| 1466 | { .driver_data = MT_CLS_NSMU, |
| 1467 | MT_USB_DEVICE(USB_VENDOR_ID_WISTRON, |
| 1468 | USB_DEVICE_ID_WISTRON_OPTICAL_TOUCH) }, |
| 1469 | |
| 1470 | /* XAT */ |
| 1471 | { .driver_data = MT_CLS_NSMU, |
| 1472 | MT_USB_DEVICE(USB_VENDOR_ID_XAT, |
| 1473 | USB_DEVICE_ID_XAT_CSR) }, |
| 1474 | |
| 1475 | /* Xiroku */ |
| 1476 | { .driver_data = MT_CLS_NSMU, |
| 1477 | MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, |
| 1478 | USB_DEVICE_ID_XIROKU_SPX) }, |
| 1479 | { .driver_data = MT_CLS_NSMU, |
| 1480 | MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, |
| 1481 | USB_DEVICE_ID_XIROKU_MPX) }, |
| 1482 | { .driver_data = MT_CLS_NSMU, |
| 1483 | MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, |
| 1484 | USB_DEVICE_ID_XIROKU_CSR) }, |
| 1485 | { .driver_data = MT_CLS_NSMU, |
| 1486 | MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, |
| 1487 | USB_DEVICE_ID_XIROKU_SPX1) }, |
| 1488 | { .driver_data = MT_CLS_NSMU, |
| 1489 | MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, |
| 1490 | USB_DEVICE_ID_XIROKU_MPX1) }, |
| 1491 | { .driver_data = MT_CLS_NSMU, |
| 1492 | MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, |
| 1493 | USB_DEVICE_ID_XIROKU_CSR1) }, |
| 1494 | { .driver_data = MT_CLS_NSMU, |
| 1495 | MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, |
| 1496 | USB_DEVICE_ID_XIROKU_SPX2) }, |
| 1497 | { .driver_data = MT_CLS_NSMU, |
| 1498 | MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, |
| 1499 | USB_DEVICE_ID_XIROKU_MPX2) }, |
| 1500 | { .driver_data = MT_CLS_NSMU, |
| 1501 | MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, |
| 1502 | USB_DEVICE_ID_XIROKU_CSR2) }, |
| 1503 | |
| 1504 | /* Generic MT device */ |
| 1505 | { HID_DEVICE(HID_BUS_ANY, HID_GROUP_MULTITOUCH, HID_ANY_ID, HID_ANY_ID) }, |
| 1506 | |
| 1507 | /* Generic Win 8 certified MT device */ |
| 1508 | { .driver_data = MT_CLS_WIN_8, |
| 1509 | HID_DEVICE(HID_BUS_ANY, HID_GROUP_MULTITOUCH_WIN_8, |
| 1510 | HID_ANY_ID, HID_ANY_ID) }, |
| 1511 | { } |
| 1512 | }; |
| 1513 | MODULE_DEVICE_TABLE(hid, mt_devices); |
| 1514 | |
| 1515 | static const struct hid_usage_id mt_grabbed_usages[] = { |
| 1516 | { HID_ANY_ID, HID_ANY_ID, HID_ANY_ID }, |
| 1517 | { HID_ANY_ID - 1, HID_ANY_ID - 1, HID_ANY_ID - 1} |
| 1518 | }; |
| 1519 | |
| 1520 | static struct hid_driver mt_driver = { |
| 1521 | .name = "hid-multitouch", |
| 1522 | .id_table = mt_devices, |
| 1523 | .probe = mt_probe, |
| 1524 | .remove = mt_remove, |
| 1525 | .input_mapping = mt_input_mapping, |
| 1526 | .input_mapped = mt_input_mapped, |
| 1527 | .input_configured = mt_input_configured, |
| 1528 | .feature_mapping = mt_feature_mapping, |
| 1529 | .usage_table = mt_grabbed_usages, |
| 1530 | .event = mt_event, |
| 1531 | .report = mt_report, |
| 1532 | #ifdef CONFIG_PM |
| 1533 | .reset_resume = mt_reset_resume, |
| 1534 | .resume = mt_resume, |
| 1535 | #endif |
| 1536 | }; |
| 1537 | module_hid_driver(mt_driver); |