drivers/hid/hid-lenovo.c

   1 /*
   2  *  HID driver for Lenovo:
   3  *  - ThinkPad USB Keyboard with TrackPoint (tpkbd)
   4  *  - ThinkPad Compact Bluetooth Keyboard with TrackPoint (cptkbd)
   5  *  - ThinkPad Compact USB Keyboard with TrackPoint (cptkbd)
   6  *
   7  *  Copyright (c) 2012 Bernhard Seibold
   8  *  Copyright (c) 2014 Jamie Lentin <jm@lentin.co.uk>
   9  */
  10
  11 /*
  12  * This program is free software; you can redistribute it and/or modify it
  13  * under the terms of the GNU General Public License as published by the Free
  14  * Software Foundation; either version 2 of the License, or (at your option)
  15  * any later version.
  16  */
  17
  18 #include <linux/module.h>
  19 #include <linux/sysfs.h>
  20 #include <linux/device.h>
  21 #include <linux/hid.h>
  22 #include <linux/input.h>
  23 #include <linux/leds.h>
  24
  25 #include "hid-ids.h"
  26
  27 struct lenovo_drvdata_tpkbd {
  28         int led_state;
  29         struct led_classdev led_mute;
  30         struct led_classdev led_micmute;
  31         int press_to_select;
  32         int dragging;
  33         int release_to_select;
  34         int select_right;
  35         int sensitivity;
  36         int press_speed;
  37 };
  38
  39 struct lenovo_drvdata_cptkbd {
  40         bool fn_lock;
  41         int sensitivity;
  42 };
  43
  44 #define map_key_clear(c) hid_map_usage_clear(hi, usage, bit, max, EV_KEY, (c))
  45
  46 static const __u8 lenovo_pro_dock_need_fixup_collection[] = {
  47         0x05, 0x88,             /* Usage Page (Vendor Usage Page 0x88)  */
  48         0x09, 0x01,             /* Usage (Vendor Usage 0x01)            */
  49         0xa1, 0x01,             /* Collection (Application)             */
  50         0x85, 0x04,             /*  Report ID (4)                       */
  51         0x19, 0x00,             /*  Usage Minimum (0)                   */
  52         0x2a, 0xff, 0xff,       /*  Usage Maximum (65535)               */
  53 };
  54
  55 static __u8 *lenovo_report_fixup(struct hid_device *hdev, __u8 *rdesc,
  56                 unsigned int *rsize)
  57 {
  58         switch (hdev->product) {
  59         case USB_DEVICE_ID_LENOVO_TPPRODOCK:
  60                 /* the fixups that need to be done:
  61                  *   - get a reasonable usage max for the vendor collection
  62                  *     0x8801 from the report ID 4
  63                  */
  64                 if (*rsize >= 153 &&
  65                     memcmp(&rdesc[140], lenovo_pro_dock_need_fixup_collection,
  66                           sizeof(lenovo_pro_dock_need_fixup_collection)) == 0) {
  67                         rdesc[151] = 0x01;
  68                         rdesc[152] = 0x00;
  69                 }
  70                 break;
  71         }
  72         return rdesc;
  73 }
  74
  75 static int lenovo_input_mapping_tpkbd(struct hid_device *hdev,
  76                 struct hid_input *hi, struct hid_field *field,
  77                 struct hid_usage *usage, unsigned long **bit, int *max)
  78 {
  79         if (usage->hid == (HID_UP_BUTTON | 0x0010)) {
  80                 /* This sub-device contains trackpoint, mark it */
  81                 hid_set_drvdata(hdev, (void *)1);
  82                 map_key_clear(KEY_MICMUTE);
  83                 return 1;
  84         }
  85         return 0;
  86 }
  87
  88 static int lenovo_input_mapping_cptkbd(struct hid_device *hdev,
  89                 struct hid_input *hi, struct hid_field *field,
  90                 struct hid_usage *usage, unsigned long **bit, int *max)
  91 {
  92         /* HID_UP_LNVENDOR = USB, HID_UP_MSVENDOR = BT */
  93         if ((usage->hid & HID_USAGE_PAGE) == HID_UP_MSVENDOR ||
  94             (usage->hid & HID_USAGE_PAGE) == HID_UP_LNVENDOR) {
  95                 switch (usage->hid & HID_USAGE) {
  96                 case 0x00f1: /* Fn-F4: Mic mute */
  97                         map_key_clear(KEY_MICMUTE);
  98                         return 1;
  99                 case 0x00f2: /* Fn-F5: Brightness down */
 100                         map_key_clear(KEY_BRIGHTNESSDOWN);
 101                         return 1;
 102                 case 0x00f3: /* Fn-F6: Brightness up */
 103                         map_key_clear(KEY_BRIGHTNESSUP);
 104                         return 1;
 105                 case 0x00f4: /* Fn-F7: External display (projector) */
 106                         map_key_clear(KEY_SWITCHVIDEOMODE);
 107                         return 1;
 108                 case 0x00f5: /* Fn-F8: Wireless */
 109                         map_key_clear(KEY_WLAN);
 110                         return 1;
 111                 case 0x00f6: /* Fn-F9: Control panel */
 112                         map_key_clear(KEY_CONFIG);
 113                         return 1;
 114                 case 0x00f8: /* Fn-F11: View open applications (3 boxes) */
 115                         map_key_clear(KEY_SCALE);
 116                         return 1;
 117                 case 0x00f9: /* Fn-F12: Open My computer (6 boxes) USB-only */
 118                         /* NB: This mapping is invented in raw_event below */
 119                         map_key_clear(KEY_FILE);
 120                         return 1;
 121                 case 0x00fa: /* Fn-Esc: Fn-lock toggle */
 122                         map_key_clear(KEY_FN_ESC);
 123                         return 1;
 124                 case 0x00fb: /* Middle mouse button (in native mode) */
 125                         map_key_clear(BTN_MIDDLE);
 126                         return 1;
 127                 }
 128         }
 129
 130         /* Compatibility middle/wheel mappings should be ignored */
 131         if (usage->hid == HID_GD_WHEEL)
 132                 return -1;
 133         if ((usage->hid & HID_USAGE_PAGE) == HID_UP_BUTTON &&
 134                         (usage->hid & HID_USAGE) == 0x003)
 135                 return -1;
 136         if ((usage->hid & HID_USAGE_PAGE) == HID_UP_CONSUMER &&
 137                         (usage->hid & HID_USAGE) == 0x238)
 138                 return -1;
 139
 140         /* Map wheel emulation reports: 0xffa1 = USB, 0xff10 = BT */
 141         if ((usage->hid & HID_USAGE_PAGE) == 0xff100000 ||
 142             (usage->hid & HID_USAGE_PAGE) == 0xffa10000) {
 143                 field->flags |= HID_MAIN_ITEM_RELATIVE | HID_MAIN_ITEM_VARIABLE;
 144                 field->logical_minimum = -127;
 145                 field->logical_maximum = 127;
 146
 147                 switch (usage->hid & HID_USAGE) {
 148                 case 0x0000:
 149                         hid_map_usage(hi, usage, bit, max, EV_REL, 0x06);
 150                         return 1;
 151                 case 0x0001:
 152                         hid_map_usage(hi, usage, bit, max, EV_REL, 0x08);
 153                         return 1;
 154                 default:
 155                         return -1;
 156                 }
 157         }
 158
 159         return 0;
 160 }
 161
 162 static int lenovo_input_mapping(struct hid_device *hdev,
 163                 struct hid_input *hi, struct hid_field *field,
 164                 struct hid_usage *usage, unsigned long **bit, int *max)
 165 {
 166         switch (hdev->product) {
 167         case USB_DEVICE_ID_LENOVO_TPKBD:
 168                 return lenovo_input_mapping_tpkbd(hdev, hi, field,
 169                                                         usage, bit, max);
 170         case USB_DEVICE_ID_LENOVO_CUSBKBD:
 171         case USB_DEVICE_ID_LENOVO_CBTKBD:
 172                 return lenovo_input_mapping_cptkbd(hdev, hi, field,
 173                                                         usage, bit, max);
 174         default:
 175                 return 0;
 176         }
 177 }
 178
 179 #undef map_key_clear
 180
 181 /* Send a config command to the keyboard */
 182 static int lenovo_send_cmd_cptkbd(struct hid_device *hdev,
 183                         unsigned char byte2, unsigned char byte3)
 184 {
 185         int ret;
 186         unsigned char buf[] = {0x18, byte2, byte3};
 187
 188         switch (hdev->product) {
 189         case USB_DEVICE_ID_LENOVO_CUSBKBD:
 190                 ret = hid_hw_raw_request(hdev, 0x13, buf, sizeof(buf),
 191                                         HID_FEATURE_REPORT, HID_REQ_SET_REPORT);
 192                 break;
 193         case USB_DEVICE_ID_LENOVO_CBTKBD:
 194                 ret = hid_hw_output_report(hdev, buf, sizeof(buf));
 195                 break;
 196         default:
 197                 ret = -EINVAL;
 198                 break;
 199         }
 200
 201         return ret < 0 ? ret : 0; /* BT returns 0, USB returns sizeof(buf) */
 202 }
 203
 204 static void lenovo_features_set_cptkbd(struct hid_device *hdev)
 205 {
 206         int ret;
 207         struct lenovo_drvdata_cptkbd *cptkbd_data = hid_get_drvdata(hdev);
 208
 209         ret = lenovo_send_cmd_cptkbd(hdev, 0x05, cptkbd_data->fn_lock);
 210         ret = lenovo_send_cmd_cptkbd(hdev, 0x02, cptkbd_data->sensitivity);
 211         if (ret)
 212                 hid_err(hdev, "Fn-lock setting failed: %d\n", ret);
 213 }
 214
 215 static ssize_t attr_fn_lock_show_cptkbd(struct device *dev,
 216                 struct device_attribute *attr,
 217                 char *buf)
 218 {
 219         struct hid_device *hdev = container_of(dev, struct hid_device, dev);
 220         struct lenovo_drvdata_cptkbd *cptkbd_data = hid_get_drvdata(hdev);
 221
 222         return snprintf(buf, PAGE_SIZE, "%u\n", cptkbd_data->fn_lock);
 223 }
 224
 225 static ssize_t attr_fn_lock_store_cptkbd(struct device *dev,
 226                 struct device_attribute *attr,
 227                 const char *buf,
 228                 size_t count)
 229 {
 230         struct hid_device *hdev = container_of(dev, struct hid_device, dev);
 231         struct lenovo_drvdata_cptkbd *cptkbd_data = hid_get_drvdata(hdev);
 232         int value;
 233
 234         if (kstrtoint(buf, 10, &value))
 235                 return -EINVAL;
 236         if (value < 0 || value > 1)
 237                 return -EINVAL;
 238
 239         cptkbd_data->fn_lock = !!value;
 240         lenovo_features_set_cptkbd(hdev);
 241
 242         return count;
 243 }
 244
 245 static ssize_t attr_sensitivity_show_cptkbd(struct device *dev,
 246                 struct device_attribute *attr,
 247                 char *buf)
 248 {
 249         struct hid_device *hdev = container_of(dev, struct hid_device, dev);
 250         struct lenovo_drvdata_cptkbd *cptkbd_data = hid_get_drvdata(hdev);
 251
 252         return snprintf(buf, PAGE_SIZE, "%u\n",
 253                 cptkbd_data->sensitivity);
 254 }
 255
 256 static ssize_t attr_sensitivity_store_cptkbd(struct device *dev,
 257                 struct device_attribute *attr,
 258                 const char *buf,
 259                 size_t count)
 260 {
 261         struct hid_device *hdev = container_of(dev, struct hid_device, dev);
 262         struct lenovo_drvdata_cptkbd *cptkbd_data = hid_get_drvdata(hdev);
 263         int value;
 264
 265         if (kstrtoint(buf, 10, &value) || value < 1 || value > 255)
 266                 return -EINVAL;
 267
 268         cptkbd_data->sensitivity = value;
 269         lenovo_features_set_cptkbd(hdev);
 270
 271         return count;
 272 }
 273
 274
 275 static struct device_attribute dev_attr_fn_lock_cptkbd =
 276         __ATTR(fn_lock, S_IWUSR | S_IRUGO,
 277                         attr_fn_lock_show_cptkbd,
 278                         attr_fn_lock_store_cptkbd);
 279
 280 static struct device_attribute dev_attr_sensitivity_cptkbd =
 281         __ATTR(sensitivity, S_IWUSR | S_IRUGO,
 282                         attr_sensitivity_show_cptkbd,
 283                         attr_sensitivity_store_cptkbd);
 284
 285
 286 static struct attribute *lenovo_attributes_cptkbd[] = {
 287         &dev_attr_fn_lock_cptkbd.attr,
 288         &dev_attr_sensitivity_cptkbd.attr,
 289         NULL
 290 };
 291
 292 static const struct attribute_group lenovo_attr_group_cptkbd = {
 293         .attrs = lenovo_attributes_cptkbd,
 294 };
 295
 296 static int lenovo_raw_event(struct hid_device *hdev,
 297                         struct hid_report *report, u8 *data, int size)
 298 {
 299         /*
 300          * Compact USB keyboard's Fn-F12 report holds down many other keys, and
 301          * its own key is outside the usage page range. Remove extra
 302          * keypresses and remap to inside usage page.
 303          */
 304         if (unlikely(hdev->product == USB_DEVICE_ID_LENOVO_CUSBKBD
 305                         && size == 3
 306                         && data[0] == 0x15
 307                         && data[1] == 0x94
 308                         && data[2] == 0x01)) {
 309                 data[1] = 0x00;
 310                 data[2] = 0x01;
 311         }
 312
 313         return 0;
 314 }
 315
 316 static int lenovo_features_set_tpkbd(struct hid_device *hdev)
 317 {
 318         struct hid_report *report;
 319         struct lenovo_drvdata_tpkbd *data_pointer = hid_get_drvdata(hdev);
 320
 321         report = hdev->report_enum[HID_FEATURE_REPORT].report_id_hash[4];
 322
 323         report->field[0]->value[0]  = data_pointer->press_to_select   ? 0x01 : 0x02;
 324         report->field[0]->value[0] |= data_pointer->dragging          ? 0x04 : 0x08;
 325         report->field[0]->value[0] |= data_pointer->release_to_select ? 0x10 : 0x20;
 326         report->field[0]->value[0] |= data_pointer->select_right      ? 0x80 : 0x40;
 327         report->field[1]->value[0] = 0x03; // unknown setting, imitate windows driver
 328         report->field[2]->value[0] = data_pointer->sensitivity;
 329         report->field[3]->value[0] = data_pointer->press_speed;
 330
 331         hid_hw_request(hdev, report, HID_REQ_SET_REPORT);
 332         return 0;
 333 }
 334
 335 static ssize_t attr_press_to_select_show_tpkbd(struct device *dev,
 336                 struct device_attribute *attr,
 337                 char *buf)
 338 {
 339         struct hid_device *hdev = container_of(dev, struct hid_device, dev);
 340         struct lenovo_drvdata_tpkbd *data_pointer = hid_get_drvdata(hdev);
 341
 342         return snprintf(buf, PAGE_SIZE, "%u\n", data_pointer->press_to_select);
 343 }
 344
 345 static ssize_t attr_press_to_select_store_tpkbd(struct device *dev,
 346                 struct device_attribute *attr,
 347                 const char *buf,
 348                 size_t count)
 349 {
 350         struct hid_device *hdev = container_of(dev, struct hid_device, dev);
 351         struct lenovo_drvdata_tpkbd *data_pointer = hid_get_drvdata(hdev);
 352         int value;
 353
 354         if (kstrtoint(buf, 10, &value))
 355                 return -EINVAL;
 356         if (value < 0 || value > 1)
 357                 return -EINVAL;
 358
 359         data_pointer->press_to_select = value;
 360         lenovo_features_set_tpkbd(hdev);
 361
 362         return count;
 363 }
 364
 365 static ssize_t attr_dragging_show_tpkbd(struct device *dev,
 366                 struct device_attribute *attr,
 367                 char *buf)
 368 {
 369         struct hid_device *hdev = container_of(dev, struct hid_device, dev);
 370         struct lenovo_drvdata_tpkbd *data_pointer = hid_get_drvdata(hdev);
 371
 372         return snprintf(buf, PAGE_SIZE, "%u\n", data_pointer->dragging);
 373 }
 374
 375 static ssize_t attr_dragging_store_tpkbd(struct device *dev,
 376                 struct device_attribute *attr,
 377                 const char *buf,
 378                 size_t count)
 379 {
 380         struct hid_device *hdev = container_of(dev, struct hid_device, dev);
 381         struct lenovo_drvdata_tpkbd *data_pointer = hid_get_drvdata(hdev);
 382         int value;
 383
 384         if (kstrtoint(buf, 10, &value))
 385                 return -EINVAL;
 386         if (value < 0 || value > 1)
 387                 return -EINVAL;
 388
 389         data_pointer->dragging = value;
 390         lenovo_features_set_tpkbd(hdev);
 391
 392         return count;
 393 }
 394
 395 static ssize_t attr_release_to_select_show_tpkbd(struct device *dev,
 396                 struct device_attribute *attr,
 397                 char *buf)
 398 {
 399         struct hid_device *hdev = container_of(dev, struct hid_device, dev);
 400         struct lenovo_drvdata_tpkbd *data_pointer = hid_get_drvdata(hdev);
 401
 402         return snprintf(buf, PAGE_SIZE, "%u\n", data_pointer->release_to_select);
 403 }
 404
 405 static ssize_t attr_release_to_select_store_tpkbd(struct device *dev,
 406                 struct device_attribute *attr,
 407                 const char *buf,
 408                 size_t count)
 409 {
 410         struct hid_device *hdev = container_of(dev, struct hid_device, dev);
 411         struct lenovo_drvdata_tpkbd *data_pointer = hid_get_drvdata(hdev);
 412         int value;
 413
 414         if (kstrtoint(buf, 10, &value))
 415                 return -EINVAL;
 416         if (value < 0 || value > 1)
 417                 return -EINVAL;
 418
 419         data_pointer->release_to_select = value;
 420         lenovo_features_set_tpkbd(hdev);
 421
 422         return count;
 423 }
 424
 425 static ssize_t attr_select_right_show_tpkbd(struct device *dev,
 426                 struct device_attribute *attr,
 427                 char *buf)
 428 {
 429         struct hid_device *hdev = container_of(dev, struct hid_device, dev);
 430         struct lenovo_drvdata_tpkbd *data_pointer = hid_get_drvdata(hdev);
 431
 432         return snprintf(buf, PAGE_SIZE, "%u\n", data_pointer->select_right);
 433 }
 434
 435 static ssize_t attr_select_right_store_tpkbd(struct device *dev,
 436                 struct device_attribute *attr,
 437                 const char *buf,
 438                 size_t count)
 439 {
 440         struct hid_device *hdev = container_of(dev, struct hid_device, dev);
 441         struct lenovo_drvdata_tpkbd *data_pointer = hid_get_drvdata(hdev);
 442         int value;
 443
 444         if (kstrtoint(buf, 10, &value))
 445                 return -EINVAL;
 446         if (value < 0 || value > 1)
 447                 return -EINVAL;
 448
 449         data_pointer->select_right = value;
 450         lenovo_features_set_tpkbd(hdev);
 451
 452         return count;
 453 }
 454
 455 static ssize_t attr_sensitivity_show_tpkbd(struct device *dev,
 456                 struct device_attribute *attr,
 457                 char *buf)
 458 {
 459         struct hid_device *hdev = container_of(dev, struct hid_device, dev);
 460         struct lenovo_drvdata_tpkbd *data_pointer = hid_get_drvdata(hdev);
 461
 462         return snprintf(buf, PAGE_SIZE, "%u\n",
 463                 data_pointer->sensitivity);
 464 }
 465
 466 static ssize_t attr_sensitivity_store_tpkbd(struct device *dev,
 467                 struct device_attribute *attr,
 468                 const char *buf,
 469                 size_t count)
 470 {
 471         struct hid_device *hdev = container_of(dev, struct hid_device, dev);
 472         struct lenovo_drvdata_tpkbd *data_pointer = hid_get_drvdata(hdev);
 473         int value;
 474
 475         if (kstrtoint(buf, 10, &value) || value < 1 || value > 255)
 476                 return -EINVAL;
 477
 478         data_pointer->sensitivity = value;
 479         lenovo_features_set_tpkbd(hdev);
 480
 481         return count;
 482 }
 483
 484 static ssize_t attr_press_speed_show_tpkbd(struct device *dev,
 485                 struct device_attribute *attr,
 486                 char *buf)
 487 {
 488         struct hid_device *hdev = container_of(dev, struct hid_device, dev);
 489         struct lenovo_drvdata_tpkbd *data_pointer = hid_get_drvdata(hdev);
 490
 491         return snprintf(buf, PAGE_SIZE, "%u\n",
 492                 data_pointer->press_speed);
 493 }
 494
 495 static ssize_t attr_press_speed_store_tpkbd(struct device *dev,
 496                 struct device_attribute *attr,
 497                 const char *buf,
 498                 size_t count)
 499 {
 500         struct hid_device *hdev = container_of(dev, struct hid_device, dev);
 501         struct lenovo_drvdata_tpkbd *data_pointer = hid_get_drvdata(hdev);
 502         int value;
 503
 504         if (kstrtoint(buf, 10, &value) || value < 1 || value > 255)
 505                 return -EINVAL;
 506
 507         data_pointer->press_speed = value;
 508         lenovo_features_set_tpkbd(hdev);
 509
 510         return count;
 511 }
 512
 513 static struct device_attribute dev_attr_press_to_select_tpkbd =
 514         __ATTR(press_to_select, S_IWUSR | S_IRUGO,
 515                         attr_press_to_select_show_tpkbd,
 516                         attr_press_to_select_store_tpkbd);
 517
 518 static struct device_attribute dev_attr_dragging_tpkbd =
 519         __ATTR(dragging, S_IWUSR | S_IRUGO,
 520                         attr_dragging_show_tpkbd,
 521                         attr_dragging_store_tpkbd);
 522
 523 static struct device_attribute dev_attr_release_to_select_tpkbd =
 524         __ATTR(release_to_select, S_IWUSR | S_IRUGO,
 525                         attr_release_to_select_show_tpkbd,
 526                         attr_release_to_select_store_tpkbd);
 527
 528 static struct device_attribute dev_attr_select_right_tpkbd =
 529         __ATTR(select_right, S_IWUSR | S_IRUGO,
 530                         attr_select_right_show_tpkbd,
 531                         attr_select_right_store_tpkbd);
 532
 533 static struct device_attribute dev_attr_sensitivity_tpkbd =
 534         __ATTR(sensitivity, S_IWUSR | S_IRUGO,
 535                         attr_sensitivity_show_tpkbd,
 536                         attr_sensitivity_store_tpkbd);
 537
 538 static struct device_attribute dev_attr_press_speed_tpkbd =
 539         __ATTR(press_speed, S_IWUSR | S_IRUGO,
 540                         attr_press_speed_show_tpkbd,
 541                         attr_press_speed_store_tpkbd);
 542
 543 static struct attribute *lenovo_attributes_tpkbd[] = {
 544         &dev_attr_press_to_select_tpkbd.attr,
 545         &dev_attr_dragging_tpkbd.attr,
 546         &dev_attr_release_to_select_tpkbd.attr,
 547         &dev_attr_select_right_tpkbd.attr,
 548         &dev_attr_sensitivity_tpkbd.attr,
 549         &dev_attr_press_speed_tpkbd.attr,
 550         NULL
 551 };
 552
 553 static const struct attribute_group lenovo_attr_group_tpkbd = {
 554         .attrs = lenovo_attributes_tpkbd,
 555 };
 556
 557 static enum led_brightness lenovo_led_brightness_get_tpkbd(
 558                         struct led_classdev *led_cdev)
 559 {
 560         struct device *dev = led_cdev->dev->parent;
 561         struct hid_device *hdev = container_of(dev, struct hid_device, dev);
 562         struct lenovo_drvdata_tpkbd *data_pointer = hid_get_drvdata(hdev);
 563         int led_nr = 0;
 564
 565         if (led_cdev == &data_pointer->led_micmute)
 566                 led_nr = 1;
 567
 568         return data_pointer->led_state & (1 << led_nr)
 569                                 ? LED_FULL
 570                                 : LED_OFF;
 571 }
 572
 573 static void lenovo_led_brightness_set_tpkbd(struct led_classdev *led_cdev,
 574                         enum led_brightness value)
 575 {
 576         struct device *dev = led_cdev->dev->parent;
 577         struct hid_device *hdev = container_of(dev, struct hid_device, dev);
 578         struct lenovo_drvdata_tpkbd *data_pointer = hid_get_drvdata(hdev);
 579         struct hid_report *report;
 580         int led_nr = 0;
 581
 582         if (led_cdev == &data_pointer->led_micmute)
 583                 led_nr = 1;
 584
 585         if (value == LED_OFF)
 586                 data_pointer->led_state &= ~(1 << led_nr);
 587         else
 588                 data_pointer->led_state |= 1 << led_nr;
 589
 590         report = hdev->report_enum[HID_OUTPUT_REPORT].report_id_hash[3];
 591         report->field[0]->value[0] = (data_pointer->led_state >> 0) & 1;
 592         report->field[0]->value[1] = (data_pointer->led_state >> 1) & 1;
 593         hid_hw_request(hdev, report, HID_REQ_SET_REPORT);
 594 }
 595
 596 static int lenovo_probe_tpkbd(struct hid_device *hdev)
 597 {
 598         struct device *dev = &hdev->dev;
 599         struct lenovo_drvdata_tpkbd *data_pointer;
 600         size_t name_sz = strlen(dev_name(dev)) + 16;
 601         char *name_mute, *name_micmute;
 602         int i;
 603         int ret;
 604
 605         /*
 606          * Only register extra settings against subdevice where input_mapping
 607          * set drvdata to 1, i.e. the trackpoint.
 608          */
 609         if (!hid_get_drvdata(hdev))
 610                 return 0;
 611
 612         hid_set_drvdata(hdev, NULL);
 613
 614         /* Validate required reports. */
 615         for (i = 0; i < 4; i++) {
 616                 if (!hid_validate_values(hdev, HID_FEATURE_REPORT, 4, i, 1))
 617                         return -ENODEV;
 618         }
 619         if (!hid_validate_values(hdev, HID_OUTPUT_REPORT, 3, 0, 2))
 620                 return -ENODEV;
 621
 622         ret = sysfs_create_group(&hdev->dev.kobj, &lenovo_attr_group_tpkbd);
 623         if (ret)
 624                 hid_warn(hdev, "Could not create sysfs group: %d\n", ret);
 625
 626         data_pointer = devm_kzalloc(&hdev->dev,
 627                                     sizeof(struct lenovo_drvdata_tpkbd),
 628                                     GFP_KERNEL);
 629         if (data_pointer == NULL) {
 630                 hid_err(hdev, "Could not allocate memory for driver data\n");
 631                 ret = -ENOMEM;
 632                 goto err;
 633         }
 634
 635         // set same default values as windows driver
 636         data_pointer->sensitivity = 0xa0;
 637         data_pointer->press_speed = 0x38;
 638
 639         name_mute = devm_kzalloc(&hdev->dev, name_sz, GFP_KERNEL);
 640         name_micmute = devm_kzalloc(&hdev->dev, name_sz, GFP_KERNEL);
 641         if (name_mute == NULL || name_micmute == NULL) {
 642                 hid_err(hdev, "Could not allocate memory for led data\n");
 643                 ret = -ENOMEM;
 644                 goto err;
 645         }
 646         snprintf(name_mute, name_sz, "%s:amber:mute", dev_name(dev));
 647         snprintf(name_micmute, name_sz, "%s:amber:micmute", dev_name(dev));
 648
 649         hid_set_drvdata(hdev, data_pointer);
 650
 651         data_pointer->led_mute.name = name_mute;
 652         data_pointer->led_mute.brightness_get = lenovo_led_brightness_get_tpkbd;
 653         data_pointer->led_mute.brightness_set = lenovo_led_brightness_set_tpkbd;
 654         data_pointer->led_mute.dev = dev;
 655         led_classdev_register(dev, &data_pointer->led_mute);
 656
 657         data_pointer->led_micmute.name = name_micmute;
 658         data_pointer->led_micmute.brightness_get =
 659                 lenovo_led_brightness_get_tpkbd;
 660         data_pointer->led_micmute.brightness_set =
 661                 lenovo_led_brightness_set_tpkbd;
 662         data_pointer->led_micmute.dev = dev;
 663         led_classdev_register(dev, &data_pointer->led_micmute);
 664
 665         lenovo_features_set_tpkbd(hdev);
 666
 667         return 0;
 668 err:
 669         sysfs_remove_group(&hdev->dev.kobj, &lenovo_attr_group_tpkbd);
 670         return ret;
 671 }
 672
 673 static int lenovo_probe_cptkbd(struct hid_device *hdev)
 674 {
 675         int ret;
 676         struct lenovo_drvdata_cptkbd *cptkbd_data;
 677
 678         /* All the custom action happens on the USBMOUSE device for USB */
 679         if (hdev->product == USB_DEVICE_ID_LENOVO_CUSBKBD
 680                         && hdev->type != HID_TYPE_USBMOUSE) {
 681                 hid_dbg(hdev, "Ignoring keyboard half of device\n");
 682                 return 0;
 683         }
 684
 685         cptkbd_data = devm_kzalloc(&hdev->dev,
 686                                         sizeof(*cptkbd_data),
 687                                         GFP_KERNEL);
 688         if (cptkbd_data == NULL) {
 689                 hid_err(hdev, "can't alloc keyboard descriptor\n");
 690                 return -ENOMEM;
 691         }
 692         hid_set_drvdata(hdev, cptkbd_data);
 693
 694         /*
 695          * Tell the keyboard a driver understands it, and turn F7, F9, F11 into
 696          * regular keys
 697          */
 698         ret = lenovo_send_cmd_cptkbd(hdev, 0x01, 0x03);
 699         if (ret)
 700                 hid_warn(hdev, "Failed to switch F7/9/11 mode: %d\n", ret);
 701
 702         /* Switch middle button to native mode */
 703         ret = lenovo_send_cmd_cptkbd(hdev, 0x09, 0x01);
 704         if (ret)
 705                 hid_warn(hdev, "Failed to switch middle button: %d\n", ret);
 706
 707         /* Set keyboard settings to known state */
 708         cptkbd_data->fn_lock = true;
 709         cptkbd_data->sensitivity = 0x05;
 710         lenovo_features_set_cptkbd(hdev);
 711
 712         ret = sysfs_create_group(&hdev->dev.kobj, &lenovo_attr_group_cptkbd);
 713         if (ret)
 714                 hid_warn(hdev, "Could not create sysfs group: %d\n", ret);
 715
 716         return 0;
 717 }
 718
 719 static int lenovo_probe(struct hid_device *hdev,
 720                 const struct hid_device_id *id)
 721 {
 722         int ret;
 723
 724         ret = hid_parse(hdev);
 725         if (ret) {
 726                 hid_err(hdev, "hid_parse failed\n");
 727                 goto err;
 728         }
 729
 730         ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
 731         if (ret) {
 732                 hid_err(hdev, "hid_hw_start failed\n");
 733                 goto err;
 734         }
 735
 736         switch (hdev->product) {
 737         case USB_DEVICE_ID_LENOVO_TPKBD:
 738                 ret = lenovo_probe_tpkbd(hdev);
 739                 break;
 740         case USB_DEVICE_ID_LENOVO_CUSBKBD:
 741         case USB_DEVICE_ID_LENOVO_CBTKBD:
 742                 ret = lenovo_probe_cptkbd(hdev);
 743                 break;
 744         default:
 745                 ret = 0;
 746                 break;
 747         }
 748         if (ret)
 749                 goto err_hid;
 750
 751         return 0;
 752 err_hid:
 753         hid_hw_stop(hdev);
 754 err:
 755         return ret;
 756 }
 757
 758 static void lenovo_remove_tpkbd(struct hid_device *hdev)
 759 {
 760         struct lenovo_drvdata_tpkbd *data_pointer = hid_get_drvdata(hdev);
 761
 762         /*
 763          * Only the trackpoint half of the keyboard has drvdata and stuff that
 764          * needs unregistering.
 765          */
 766         if (data_pointer == NULL)
 767                 return;
 768
 769         sysfs_remove_group(&hdev->dev.kobj,
 770                         &lenovo_attr_group_tpkbd);
 771
 772         led_classdev_unregister(&data_pointer->led_micmute);
 773         led_classdev_unregister(&data_pointer->led_mute);
 774
 775         hid_set_drvdata(hdev, NULL);
 776 }
 777
 778 static void lenovo_remove_cptkbd(struct hid_device *hdev)
 779 {
 780         sysfs_remove_group(&hdev->dev.kobj,
 781                         &lenovo_attr_group_cptkbd);
 782 }
 783
 784 static void lenovo_remove(struct hid_device *hdev)
 785 {
 786         switch (hdev->product) {
 787         case USB_DEVICE_ID_LENOVO_TPKBD:
 788                 lenovo_remove_tpkbd(hdev);
 789                 break;
 790         case USB_DEVICE_ID_LENOVO_CUSBKBD:
 791         case USB_DEVICE_ID_LENOVO_CBTKBD:
 792                 lenovo_remove_cptkbd(hdev);
 793                 break;
 794         }
 795
 796         hid_hw_stop(hdev);
 797 }
 798
 799 static void lenovo_input_configured(struct hid_device *hdev,
 800                 struct hid_input *hi)
 801 {
 802         switch (hdev->product) {
 803                 case USB_DEVICE_ID_LENOVO_TPKBD:
 804                 case USB_DEVICE_ID_LENOVO_CUSBKBD:
 805                 case USB_DEVICE_ID_LENOVO_CBTKBD:
 806                         if (test_bit(EV_REL, hi->input->evbit)) {
 807                                 /* set only for trackpoint device */
 808                                 __set_bit(INPUT_PROP_POINTER, hi->input->propbit);
 809                                 __set_bit(INPUT_PROP_POINTING_STICK,
 810                                                 hi->input->propbit);
 811                         }
 812                         break;
 813         }
 814 }
 815
 816
 817 static const struct hid_device_id lenovo_devices[] = {
 818         { HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_TPKBD) },
 819         { HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_CUSBKBD) },
 820         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_CBTKBD) },
 821         { HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_TPPRODOCK) },
 822         { }
 823 };
 824
 825 MODULE_DEVICE_TABLE(hid, lenovo_devices);
 826
 827 static struct hid_driver lenovo_driver = {
 828         .name = "lenovo",
 829         .id_table = lenovo_devices,
 830         .input_configured = lenovo_input_configured,
 831         .input_mapping = lenovo_input_mapping,
 832         .probe = lenovo_probe,
 833         .remove = lenovo_remove,
 834         .raw_event = lenovo_raw_event,
 835         .report_fixup = lenovo_report_fixup,
 836 };
 837 module_hid_driver(lenovo_driver);
 838
 839 MODULE_LICENSE("GPL");