drivers/hid/hid-lenovo.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  *  HID driver for Lenovo:
   4  *  - ThinkPad USB Keyboard with TrackPoint (tpkbd)
   5  *  - ThinkPad Compact Bluetooth Keyboard with TrackPoint (cptkbd)
   6  *  - ThinkPad Compact USB Keyboard with TrackPoint (cptkbd)
   7  *  - ThinkPad TrackPoint Keyboard II USB/Bluetooth (cptkbd/tpIIkbd)
   8  *
   9  *  Copyright (c) 2012 Bernhard Seibold
  10  *  Copyright (c) 2014 Jamie Lentin <jm@lentin.co.uk>
  11  *
  12  * Linux IBM/Lenovo Scrollpoint mouse driver:
  13  * - IBM Scrollpoint III
  14  * - IBM Scrollpoint Pro
  15  * - IBM Scrollpoint Optical
  16  * - IBM Scrollpoint Optical 800dpi
  17  * - IBM Scrollpoint Optical 800dpi Pro
  18  * - Lenovo Scrollpoint Optical
  19  *
  20  *  Copyright (c) 2012 Peter De Wachter <pdewacht@gmail.com>
  21  *  Copyright (c) 2018 Peter Ganzhorn <peter.ganzhorn@gmail.com>
  22  */
  23
  24 /*
  25  */
  26
  27 #include <linux/module.h>
  28 #include <linux/sysfs.h>
  29 #include <linux/device.h>
  30 #include <linux/hid.h>
  31 #include <linux/input.h>
  32 #include <linux/leds.h>
  33 #include <linux/workqueue.h>
  34
  35 #include "hid-ids.h"
  36
  37 /* Userspace expects F20 for mic-mute KEY_MICMUTE does not work */
  38 #define LENOVO_KEY_MICMUTE KEY_F20
  39
  40 struct lenovo_drvdata {
  41         u8 led_report[3]; /* Must be first for proper alignment */
  42         int led_state;
  43         struct mutex led_report_mutex;
  44         struct led_classdev led_mute;
  45         struct led_classdev led_micmute;
  46         struct work_struct fn_lock_sync_work;
  47         struct hid_device *hdev;
  48         int press_to_select;
  49         int dragging;
  50         int release_to_select;
  51         int select_right;
  52         int sensitivity;
  53         int press_speed;
  54         /* 0: Up
  55          * 1: Down (undecided)
  56          * 2: Scrolling
  57          * 3: Patched firmware, disable workaround
  58          */
  59         u8 middlebutton_state;
  60         bool fn_lock;
  61 };
  62
  63 #define map_key_clear(c) hid_map_usage_clear(hi, usage, bit, max, EV_KEY, (c))
  64
  65 #define TP10UBKBD_LED_OUTPUT_REPORT     9
  66
  67 #define TP10UBKBD_FN_LOCK_LED           0x54
  68 #define TP10UBKBD_MUTE_LED              0x64
  69 #define TP10UBKBD_MICMUTE_LED           0x74
  70
  71 #define TP10UBKBD_LED_OFF               1
  72 #define TP10UBKBD_LED_ON                2
  73
  74 static int lenovo_led_set_tp10ubkbd(struct hid_device *hdev, u8 led_code,
  75                                     enum led_brightness value)
  76 {
  77         struct lenovo_drvdata *data = hid_get_drvdata(hdev);
  78         int ret;
  79
  80         mutex_lock(&data->led_report_mutex);
  81
  82         data->led_report[0] = TP10UBKBD_LED_OUTPUT_REPORT;
  83         data->led_report[1] = led_code;
  84         data->led_report[2] = value ? TP10UBKBD_LED_ON : TP10UBKBD_LED_OFF;
  85         ret = hid_hw_raw_request(hdev, data->led_report[0], data->led_report, 3,
  86                                  HID_OUTPUT_REPORT, HID_REQ_SET_REPORT);
  87         if (ret != 3) {
  88                 if (ret != -ENODEV)
  89                         hid_err(hdev, "Set LED output report error: %d\n", ret);
  90
  91                 ret = ret < 0 ? ret : -EIO;
  92         } else {
  93                 ret = 0;
  94         }
  95
  96         mutex_unlock(&data->led_report_mutex);
  97
  98         return ret;
  99 }
 100
 101 static void lenovo_tp10ubkbd_sync_fn_lock(struct work_struct *work)
 102 {
 103         struct lenovo_drvdata *data =
 104                 container_of(work, struct lenovo_drvdata, fn_lock_sync_work);
 105
 106         lenovo_led_set_tp10ubkbd(data->hdev, TP10UBKBD_FN_LOCK_LED,
 107                                  data->fn_lock);
 108 }
 109
 110 static const __u8 lenovo_pro_dock_need_fixup_collection[] = {
 111         0x05, 0x88,             /* Usage Page (Vendor Usage Page 0x88)  */
 112         0x09, 0x01,             /* Usage (Vendor Usage 0x01)            */
 113         0xa1, 0x01,             /* Collection (Application)             */
 114         0x85, 0x04,             /*  Report ID (4)                       */
 115         0x19, 0x00,             /*  Usage Minimum (0)                   */
 116         0x2a, 0xff, 0xff,       /*  Usage Maximum (65535)               */
 117 };
 118
 119 /* Broken ThinkPad TrackPoint II collection (Bluetooth mode) */
 120 static const __u8 lenovo_tpIIbtkbd_need_fixup_collection[] = {
 121         0x06, 0x00, 0xFF,       /* Usage Page (Vendor Defined 0xFF00) */
 122         0x09, 0x01,             /* Usage (0x01) */
 123         0xA1, 0x01,             /* Collection (Application) */
 124         0x85, 0x05,             /*   Report ID (5) */
 125         0x1A, 0xF1, 0x00,       /*   Usage Minimum (0xF1) */
 126         0x2A, 0xFC, 0x00,       /*   Usage Maximum (0xFC) */
 127         0x15, 0x00,             /*   Logical Minimum (0) */
 128         0x25, 0x01,             /*   Logical Maximum (1) */
 129         0x75, 0x01,             /*   Report Size (1) */
 130         0x95, 0x0D,             /*   Report Count (13) */
 131         0x81, 0x02,             /*   Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position) */
 132         0x95, 0x03,             /*   Report Count (3) */
 133         0x81, 0x01,             /*   Input (Const,Array,Abs,No Wrap,Linear,Preferred State,No Null Position) */
 134 };
 135
 136 static __u8 *lenovo_report_fixup(struct hid_device *hdev, __u8 *rdesc,
 137                 unsigned int *rsize)
 138 {
 139         switch (hdev->product) {
 140         case USB_DEVICE_ID_LENOVO_TPPRODOCK:
 141                 /* the fixups that need to be done:
 142                  *   - get a reasonable usage max for the vendor collection
 143                  *     0x8801 from the report ID 4
 144                  */
 145                 if (*rsize >= 153 &&
 146                     memcmp(&rdesc[140], lenovo_pro_dock_need_fixup_collection,
 147                           sizeof(lenovo_pro_dock_need_fixup_collection)) == 0) {
 148                         rdesc[151] = 0x01;
 149                         rdesc[152] = 0x00;
 150                 }
 151                 break;
 152         case USB_DEVICE_ID_LENOVO_TPIIBTKBD:
 153                 if (*rsize >= 263 &&
 154                     memcmp(&rdesc[234], lenovo_tpIIbtkbd_need_fixup_collection,
 155                           sizeof(lenovo_tpIIbtkbd_need_fixup_collection)) == 0) {
 156                         rdesc[244] = 0x00; /* usage minimum = 0x00 */
 157                         rdesc[247] = 0xff; /* usage maximum = 0xff */
 158                         rdesc[252] = 0xff; /* logical maximum = 0xff */
 159                         rdesc[254] = 0x08; /* report size = 0x08 */
 160                         rdesc[256] = 0x01; /* report count = 0x01 */
 161                         rdesc[258] = 0x00; /* input = 0x00 */
 162                         rdesc[260] = 0x01; /* report count (2) = 0x01 */
 163                 }
 164                 break;
 165         }
 166         return rdesc;
 167 }
 168
 169 static int lenovo_input_mapping_tpkbd(struct hid_device *hdev,
 170                 struct hid_input *hi, struct hid_field *field,
 171                 struct hid_usage *usage, unsigned long **bit, int *max)
 172 {
 173         if (usage->hid == (HID_UP_BUTTON | 0x0010)) {
 174                 /* This sub-device contains trackpoint, mark it */
 175                 hid_set_drvdata(hdev, (void *)1);
 176                 map_key_clear(LENOVO_KEY_MICMUTE);
 177                 return 1;
 178         }
 179         return 0;
 180 }
 181
 182 static int lenovo_input_mapping_cptkbd(struct hid_device *hdev,
 183                 struct hid_input *hi, struct hid_field *field,
 184                 struct hid_usage *usage, unsigned long **bit, int *max)
 185 {
 186         /* HID_UP_LNVENDOR = USB, HID_UP_MSVENDOR = BT */
 187         if ((usage->hid & HID_USAGE_PAGE) == HID_UP_MSVENDOR ||
 188             (usage->hid & HID_USAGE_PAGE) == HID_UP_LNVENDOR) {
 189                 switch (usage->hid & HID_USAGE) {
 190                 case 0x00f1: /* Fn-F4: Mic mute */
 191                         map_key_clear(LENOVO_KEY_MICMUTE);
 192                         return 1;
 193                 case 0x00f2: /* Fn-F5: Brightness down */
 194                         map_key_clear(KEY_BRIGHTNESSDOWN);
 195                         return 1;
 196                 case 0x00f3: /* Fn-F6: Brightness up */
 197                         map_key_clear(KEY_BRIGHTNESSUP);
 198                         return 1;
 199                 case 0x00f4: /* Fn-F7: External display (projector) */
 200                         map_key_clear(KEY_SWITCHVIDEOMODE);
 201                         return 1;
 202                 case 0x00f5: /* Fn-F8: Wireless */
 203                         map_key_clear(KEY_WLAN);
 204                         return 1;
 205                 case 0x00f6: /* Fn-F9: Control panel */
 206                         map_key_clear(KEY_CONFIG);
 207                         return 1;
 208                 case 0x00f8: /* Fn-F11: View open applications (3 boxes) */
 209                         map_key_clear(KEY_SCALE);
 210                         return 1;
 211                 case 0x00f9: /* Fn-F12: Open My computer (6 boxes) USB-only */
 212                         /* NB: This mapping is invented in raw_event below */
 213                         map_key_clear(KEY_FILE);
 214                         return 1;
 215                 case 0x00fa: /* Fn-Esc: Fn-lock toggle */
 216                         map_key_clear(KEY_FN_ESC);
 217                         return 1;
 218                 case 0x00fb: /* Middle mouse button (in native mode) */
 219                         map_key_clear(BTN_MIDDLE);
 220                         return 1;
 221                 }
 222         }
 223
 224         /* Compatibility middle/wheel mappings should be ignored */
 225         if (usage->hid == HID_GD_WHEEL)
 226                 return -1;
 227         if ((usage->hid & HID_USAGE_PAGE) == HID_UP_BUTTON &&
 228                         (usage->hid & HID_USAGE) == 0x003)
 229                 return -1;
 230         if ((usage->hid & HID_USAGE_PAGE) == HID_UP_CONSUMER &&
 231                         (usage->hid & HID_USAGE) == 0x238)
 232                 return -1;
 233
 234         /* Map wheel emulation reports: 0xffa1 = USB, 0xff10 = BT */
 235         if ((usage->hid & HID_USAGE_PAGE) == 0xff100000 ||
 236             (usage->hid & HID_USAGE_PAGE) == 0xffa10000) {
 237                 field->flags |= HID_MAIN_ITEM_RELATIVE | HID_MAIN_ITEM_VARIABLE;
 238                 field->logical_minimum = -127;
 239                 field->logical_maximum = 127;
 240
 241                 switch (usage->hid & HID_USAGE) {
 242                 case 0x0000:
 243                         hid_map_usage(hi, usage, bit, max, EV_REL, REL_HWHEEL);
 244                         return 1;
 245                 case 0x0001:
 246                         hid_map_usage(hi, usage, bit, max, EV_REL, REL_WHEEL);
 247                         return 1;
 248                 default:
 249                         return -1;
 250                 }
 251         }
 252
 253         return 0;
 254 }
 255
 256 static int lenovo_input_mapping_tpIIkbd(struct hid_device *hdev,
 257                 struct hid_input *hi, struct hid_field *field,
 258                 struct hid_usage *usage, unsigned long **bit, int *max)
 259 {
 260         /*
 261          * 0xff0a0000 = USB, HID_UP_MSVENDOR = BT.
 262          *
 263          * In BT mode, there are two HID_UP_MSVENDOR pages.
 264          * Use only the page that contains report ID == 5.
 265          */
 266         if (((usage->hid & HID_USAGE_PAGE) == 0xff0a0000 ||
 267             (usage->hid & HID_USAGE_PAGE) == HID_UP_MSVENDOR) &&
 268             field->report->id == 5) {
 269                 switch (usage->hid & HID_USAGE) {
 270                 case 0x00bb: /* Fn-F4: Mic mute */
 271                         map_key_clear(LENOVO_KEY_MICMUTE);
 272                         return 1;
 273                 case 0x00c3: /* Fn-F5: Brightness down */
 274                         map_key_clear(KEY_BRIGHTNESSDOWN);
 275                         return 1;
 276                 case 0x00c4: /* Fn-F6: Brightness up */
 277                         map_key_clear(KEY_BRIGHTNESSUP);
 278                         return 1;
 279                 case 0x00c1: /* Fn-F8: Notification center */
 280                         map_key_clear(KEY_NOTIFICATION_CENTER);
 281                         return 1;
 282                 case 0x00bc: /* Fn-F9: Control panel */
 283                         map_key_clear(KEY_CONFIG);
 284                         return 1;
 285                 case 0x00b6: /* Fn-F10: Bluetooth */
 286                         map_key_clear(KEY_BLUETOOTH);
 287                         return 1;
 288                 case 0x00b7: /* Fn-F11: Keyboard config */
 289                         map_key_clear(KEY_KEYBOARD);
 290                         return 1;
 291                 case 0x00b8: /* Fn-F12: User function */
 292                         map_key_clear(KEY_PROG1);
 293                         return 1;
 294                 case 0x00b9: /* Fn-PrtSc: Snipping tool */
 295                         map_key_clear(KEY_SELECTIVE_SCREENSHOT);
 296                         return 1;
 297                 case 0x00b5: /* Fn-Esc: Fn-lock toggle */
 298                         map_key_clear(KEY_FN_ESC);
 299                         return 1;
 300                 }
 301         }
 302
 303         if ((usage->hid & HID_USAGE_PAGE) == 0xffa00000) {
 304                 switch (usage->hid & HID_USAGE) {
 305                 case 0x00fb: /* Middle mouse (in native USB mode) */
 306                         map_key_clear(BTN_MIDDLE);
 307                         return 1;
 308                 }
 309         }
 310
 311         if ((usage->hid & HID_USAGE_PAGE) == HID_UP_MSVENDOR &&
 312             field->report->id == 21) {
 313                 switch (usage->hid & HID_USAGE) {
 314                 case 0x0004: /* Middle mouse (in native Bluetooth mode) */
 315                         map_key_clear(BTN_MIDDLE);
 316                         return 1;
 317                 }
 318         }
 319
 320         /* Compatibility middle/wheel mappings should be ignored */
 321         if (usage->hid == HID_GD_WHEEL)
 322                 return -1;
 323         if ((usage->hid & HID_USAGE_PAGE) == HID_UP_BUTTON &&
 324                         (usage->hid & HID_USAGE) == 0x003)
 325                 return -1;
 326         if ((usage->hid & HID_USAGE_PAGE) == HID_UP_CONSUMER &&
 327                         (usage->hid & HID_USAGE) == 0x238)
 328                 return -1;
 329
 330         /* Map wheel emulation reports: 0xff10 */
 331         if ((usage->hid & HID_USAGE_PAGE) == 0xff100000) {
 332                 field->flags |= HID_MAIN_ITEM_RELATIVE | HID_MAIN_ITEM_VARIABLE;
 333                 field->logical_minimum = -127;
 334                 field->logical_maximum = 127;
 335
 336                 switch (usage->hid & HID_USAGE) {
 337                 case 0x0000:
 338                         hid_map_usage(hi, usage, bit, max, EV_REL, REL_HWHEEL);
 339                         return 1;
 340                 case 0x0001:
 341                         hid_map_usage(hi, usage, bit, max, EV_REL, REL_WHEEL);
 342                         return 1;
 343                 default:
 344                         return -1;
 345                 }
 346         }
 347
 348         return 0;
 349 }
 350
 351 static int lenovo_input_mapping_scrollpoint(struct hid_device *hdev,
 352                 struct hid_input *hi, struct hid_field *field,
 353                 struct hid_usage *usage, unsigned long **bit, int *max)
 354 {
 355         if (usage->hid == HID_GD_Z) {
 356                 hid_map_usage(hi, usage, bit, max, EV_REL, REL_HWHEEL);
 357                 return 1;
 358         }
 359         return 0;
 360 }
 361
 362 static int lenovo_input_mapping_tp10_ultrabook_kbd(struct hid_device *hdev,
 363                 struct hid_input *hi, struct hid_field *field,
 364                 struct hid_usage *usage, unsigned long **bit, int *max)
 365 {
 366         /*
 367          * The ThinkPad 10 Ultrabook Keyboard uses 0x000c0001 usage for
 368          * a bunch of keys which have no standard consumer page code.
 369          */
 370         if (usage->hid == 0x000c0001) {
 371                 switch (usage->usage_index) {
 372                 case 8: /* Fn-Esc: Fn-lock toggle */
 373                         map_key_clear(KEY_FN_ESC);
 374                         return 1;
 375                 case 9: /* Fn-F4: Mic mute */
 376                         map_key_clear(LENOVO_KEY_MICMUTE);
 377                         return 1;
 378                 case 10: /* Fn-F7: Control panel */
 379                         map_key_clear(KEY_CONFIG);
 380                         return 1;
 381                 case 11: /* Fn-F8: Search (magnifier glass) */
 382                         map_key_clear(KEY_SEARCH);
 383                         return 1;
 384                 case 12: /* Fn-F10: Open My computer (6 boxes) */
 385                         map_key_clear(KEY_FILE);
 386                         return 1;
 387                 }
 388         }
 389
 390         /*
 391          * The Ultrabook Keyboard sends a spurious F23 key-press when resuming
 392          * from suspend and it does not actually have a F23 key, ignore it.
 393          */
 394         if (usage->hid == 0x00070072)
 395                 return -1;
 396
 397         return 0;
 398 }
 399
 400 static int lenovo_input_mapping_x1_tab_kbd(struct hid_device *hdev,
 401                 struct hid_input *hi, struct hid_field *field,
 402                 struct hid_usage *usage, unsigned long **bit, int *max)
 403 {
 404         /*
 405          * The ThinkPad X1 Tablet Thin Keyboard uses 0x000c0001 usage for
 406          * a bunch of keys which have no standard consumer page code.
 407          */
 408         if (usage->hid == 0x000c0001) {
 409                 switch (usage->usage_index) {
 410                 case 0: /* Fn-F10: Enable/disable bluetooth */
 411                         map_key_clear(KEY_BLUETOOTH);
 412                         return 1;
 413                 case 1: /* Fn-F11: Keyboard settings */
 414                         map_key_clear(KEY_KEYBOARD);
 415                         return 1;
 416                 case 2: /* Fn-F12: User function / Cortana */
 417                         map_key_clear(KEY_MACRO1);
 418                         return 1;
 419                 case 3: /* Fn-PrtSc: Snipping tool */
 420                         map_key_clear(KEY_SELECTIVE_SCREENSHOT);
 421                         return 1;
 422                 case 8: /* Fn-Esc: Fn-lock toggle */
 423                         map_key_clear(KEY_FN_ESC);
 424                         return 1;
 425                 case 9: /* Fn-F4: Mute/unmute microphone */
 426                         map_key_clear(KEY_MICMUTE);
 427                         return 1;
 428                 case 10: /* Fn-F9: Settings */
 429                         map_key_clear(KEY_CONFIG);
 430                         return 1;
 431                 case 13: /* Fn-F7: Manage external displays */
 432                         map_key_clear(KEY_SWITCHVIDEOMODE);
 433                         return 1;
 434                 case 14: /* Fn-F8: Enable/disable wifi */
 435                         map_key_clear(KEY_WLAN);
 436                         return 1;
 437                 }
 438         }
 439
 440         if (usage->hid == (HID_UP_KEYBOARD | 0x009a)) {
 441                 map_key_clear(KEY_SYSRQ);
 442                 return 1;
 443         }
 444
 445         return 0;
 446 }
 447
 448 static int lenovo_input_mapping(struct hid_device *hdev,
 449                 struct hid_input *hi, struct hid_field *field,
 450                 struct hid_usage *usage, unsigned long **bit, int *max)
 451 {
 452         switch (hdev->product) {
 453         case USB_DEVICE_ID_LENOVO_TPKBD:
 454                 return lenovo_input_mapping_tpkbd(hdev, hi, field,
 455                                                         usage, bit, max);
 456         case USB_DEVICE_ID_LENOVO_CUSBKBD:
 457         case USB_DEVICE_ID_LENOVO_CBTKBD:
 458                 return lenovo_input_mapping_cptkbd(hdev, hi, field,
 459                                                         usage, bit, max);
 460         case USB_DEVICE_ID_LENOVO_TPIIUSBKBD:
 461         case USB_DEVICE_ID_LENOVO_TPIIBTKBD:
 462                 return lenovo_input_mapping_tpIIkbd(hdev, hi, field,
 463                                                         usage, bit, max);
 464         case USB_DEVICE_ID_IBM_SCROLLPOINT_III:
 465         case USB_DEVICE_ID_IBM_SCROLLPOINT_PRO:
 466         case USB_DEVICE_ID_IBM_SCROLLPOINT_OPTICAL:
 467         case USB_DEVICE_ID_IBM_SCROLLPOINT_800DPI_OPTICAL:
 468         case USB_DEVICE_ID_IBM_SCROLLPOINT_800DPI_OPTICAL_PRO:
 469         case USB_DEVICE_ID_LENOVO_SCROLLPOINT_OPTICAL:
 470                 return lenovo_input_mapping_scrollpoint(hdev, hi, field,
 471                                                         usage, bit, max);
 472         case USB_DEVICE_ID_LENOVO_TP10UBKBD:
 473                 return lenovo_input_mapping_tp10_ultrabook_kbd(hdev, hi, field,
 474                                                                usage, bit, max);
 475         case USB_DEVICE_ID_LENOVO_X1_TAB:
 476                 return lenovo_input_mapping_x1_tab_kbd(hdev, hi, field, usage, bit, max);
 477         default:
 478                 return 0;
 479         }
 480 }
 481
 482 #undef map_key_clear
 483
 484 /* Send a config command to the keyboard */
 485 static int lenovo_send_cmd_cptkbd(struct hid_device *hdev,
 486                         unsigned char byte2, unsigned char byte3)
 487 {
 488         int ret;
 489         unsigned char *buf;
 490
 491         buf = kzalloc(3, GFP_KERNEL);
 492         if (!buf)
 493                 return -ENOMEM;
 494
 495         /*
 496          * Feature report 0x13 is used for USB,
 497          * output report 0x18 is used for Bluetooth.
 498          * buf[0] is ignored by hid_hw_raw_request.
 499          */
 500         buf[0] = 0x18;
 501         buf[1] = byte2;
 502         buf[2] = byte3;
 503
 504         switch (hdev->product) {
 505         case USB_DEVICE_ID_LENOVO_CUSBKBD:
 506         case USB_DEVICE_ID_LENOVO_TPIIUSBKBD:
 507                 ret = hid_hw_raw_request(hdev, 0x13, buf, 3,
 508                                         HID_FEATURE_REPORT, HID_REQ_SET_REPORT);
 509                 break;
 510         case USB_DEVICE_ID_LENOVO_CBTKBD:
 511         case USB_DEVICE_ID_LENOVO_TPIIBTKBD:
 512                 ret = hid_hw_output_report(hdev, buf, 3);
 513                 break;
 514         default:
 515                 ret = -EINVAL;
 516                 break;
 517         }
 518
 519         kfree(buf);
 520
 521         return ret < 0 ? ret : 0; /* BT returns 0, USB returns sizeof(buf) */
 522 }
 523
 524 static void lenovo_features_set_cptkbd(struct hid_device *hdev)
 525 {
 526         int ret;
 527         struct lenovo_drvdata *cptkbd_data = hid_get_drvdata(hdev);
 528
 529         /*
 530          * Tell the keyboard a driver understands it, and turn F7, F9, F11 into
 531          * regular keys
 532          */
 533         ret = lenovo_send_cmd_cptkbd(hdev, 0x01, 0x03);
 534         if (ret)
 535                 hid_warn(hdev, "Failed to switch F7/9/11 mode: %d\n", ret);
 536
 537         /* Switch middle button to native mode */
 538         ret = lenovo_send_cmd_cptkbd(hdev, 0x09, 0x01);
 539         if (ret)
 540                 hid_warn(hdev, "Failed to switch middle button: %d\n", ret);
 541
 542         ret = lenovo_send_cmd_cptkbd(hdev, 0x05, cptkbd_data->fn_lock);
 543         if (ret)
 544                 hid_err(hdev, "Fn-lock setting failed: %d\n", ret);
 545
 546         ret = lenovo_send_cmd_cptkbd(hdev, 0x02, cptkbd_data->sensitivity);
 547         if (ret)
 548                 hid_err(hdev, "Sensitivity setting failed: %d\n", ret);
 549 }
 550
 551 static ssize_t attr_fn_lock_show(struct device *dev,
 552                 struct device_attribute *attr,
 553                 char *buf)
 554 {
 555         struct hid_device *hdev = to_hid_device(dev);
 556         struct lenovo_drvdata *data = hid_get_drvdata(hdev);
 557
 558         return snprintf(buf, PAGE_SIZE, "%u\n", data->fn_lock);
 559 }
 560
 561 static ssize_t attr_fn_lock_store(struct device *dev,
 562                 struct device_attribute *attr,
 563                 const char *buf,
 564                 size_t count)
 565 {
 566         struct hid_device *hdev = to_hid_device(dev);
 567         struct lenovo_drvdata *data = hid_get_drvdata(hdev);
 568         int value, ret;
 569
 570         if (kstrtoint(buf, 10, &value))
 571                 return -EINVAL;
 572         if (value < 0 || value > 1)
 573                 return -EINVAL;
 574
 575         data->fn_lock = !!value;
 576
 577         switch (hdev->product) {
 578         case USB_DEVICE_ID_LENOVO_CUSBKBD:
 579         case USB_DEVICE_ID_LENOVO_CBTKBD:
 580         case USB_DEVICE_ID_LENOVO_TPIIUSBKBD:
 581         case USB_DEVICE_ID_LENOVO_TPIIBTKBD:
 582                 lenovo_features_set_cptkbd(hdev);
 583                 break;
 584         case USB_DEVICE_ID_LENOVO_TP10UBKBD:
 585         case USB_DEVICE_ID_LENOVO_X1_TAB:
 586                 ret = lenovo_led_set_tp10ubkbd(hdev, TP10UBKBD_FN_LOCK_LED, value);
 587                 if (ret)
 588                         return ret;
 589                 break;
 590         }
 591
 592         return count;
 593 }
 594
 595 static ssize_t attr_sensitivity_show_cptkbd(struct device *dev,
 596                 struct device_attribute *attr,
 597                 char *buf)
 598 {
 599         struct hid_device *hdev = to_hid_device(dev);
 600         struct lenovo_drvdata *cptkbd_data = hid_get_drvdata(hdev);
 601
 602         return snprintf(buf, PAGE_SIZE, "%u\n",
 603                 cptkbd_data->sensitivity);
 604 }
 605
 606 static ssize_t attr_sensitivity_store_cptkbd(struct device *dev,
 607                 struct device_attribute *attr,
 608                 const char *buf,
 609                 size_t count)
 610 {
 611         struct hid_device *hdev = to_hid_device(dev);
 612         struct lenovo_drvdata *cptkbd_data = hid_get_drvdata(hdev);
 613         int value;
 614
 615         if (kstrtoint(buf, 10, &value) || value < 1 || value > 255)
 616                 return -EINVAL;
 617
 618         cptkbd_data->sensitivity = value;
 619         lenovo_features_set_cptkbd(hdev);
 620
 621         return count;
 622 }
 623
 624
 625 static struct device_attribute dev_attr_fn_lock =
 626         __ATTR(fn_lock, S_IWUSR | S_IRUGO,
 627                         attr_fn_lock_show,
 628                         attr_fn_lock_store);
 629
 630 static struct device_attribute dev_attr_sensitivity_cptkbd =
 631         __ATTR(sensitivity, S_IWUSR | S_IRUGO,
 632                         attr_sensitivity_show_cptkbd,
 633                         attr_sensitivity_store_cptkbd);
 634
 635
 636 static struct attribute *lenovo_attributes_cptkbd[] = {
 637         &dev_attr_fn_lock.attr,
 638         &dev_attr_sensitivity_cptkbd.attr,
 639         NULL
 640 };
 641
 642 static const struct attribute_group lenovo_attr_group_cptkbd = {
 643         .attrs = lenovo_attributes_cptkbd,
 644 };
 645
 646 static int lenovo_raw_event(struct hid_device *hdev,
 647                         struct hid_report *report, u8 *data, int size)
 648 {
 649         /*
 650          * Compact USB keyboard's Fn-F12 report holds down many other keys, and
 651          * its own key is outside the usage page range. Remove extra
 652          * keypresses and remap to inside usage page.
 653          */
 654         if (unlikely(hdev->product == USB_DEVICE_ID_LENOVO_CUSBKBD
 655                         && size == 3
 656                         && data[0] == 0x15
 657                         && data[1] == 0x94
 658                         && data[2] == 0x01)) {
 659                 data[1] = 0x00;
 660                 data[2] = 0x01;
 661         }
 662
 663         return 0;
 664 }
 665
 666 static int lenovo_event_tp10ubkbd(struct hid_device *hdev,
 667                 struct hid_field *field, struct hid_usage *usage, __s32 value)
 668 {
 669         struct lenovo_drvdata *data = hid_get_drvdata(hdev);
 670
 671         if (usage->type == EV_KEY && usage->code == KEY_FN_ESC && value == 1) {
 672                 /*
 673                  * The user has toggled the Fn-lock state. Toggle our own
 674                  * cached value of it and sync our value to the keyboard to
 675                  * ensure things are in sync (the sycning should be a no-op).
 676                  */
 677                 data->fn_lock = !data->fn_lock;
 678                 schedule_work(&data->fn_lock_sync_work);
 679         }
 680
 681         return 0;
 682 }
 683
 684 static int lenovo_event_cptkbd(struct hid_device *hdev,
 685                 struct hid_field *field, struct hid_usage *usage, __s32 value)
 686 {
 687         struct lenovo_drvdata *cptkbd_data = hid_get_drvdata(hdev);
 688
 689         if (cptkbd_data->middlebutton_state != 3) {
 690                 /* REL_X and REL_Y events during middle button pressed
 691                  * are only possible on patched, bug-free firmware
 692                  * so set middlebutton_state to 3
 693                  * to never apply workaround anymore
 694                  */
 695                 if (cptkbd_data->middlebutton_state == 1 &&
 696                                 usage->type == EV_REL &&
 697                                 (usage->code == REL_X || usage->code == REL_Y)) {
 698                         cptkbd_data->middlebutton_state = 3;
 699                         /* send middle button press which was hold before */
 700                         input_event(field->hidinput->input,
 701                                 EV_KEY, BTN_MIDDLE, 1);
 702                         input_sync(field->hidinput->input);
 703                 }
 704
 705                 /* "wheel" scroll events */
 706                 if (usage->type == EV_REL && (usage->code == REL_WHEEL ||
 707                                 usage->code == REL_HWHEEL)) {
 708                         /* Scroll events disable middle-click event */
 709                         cptkbd_data->middlebutton_state = 2;
 710                         return 0;
 711                 }
 712
 713                 /* Middle click events */
 714                 if (usage->type == EV_KEY && usage->code == BTN_MIDDLE) {
 715                         if (value == 1) {
 716                                 cptkbd_data->middlebutton_state = 1;
 717                         } else if (value == 0) {
 718                                 if (cptkbd_data->middlebutton_state == 1) {
 719                                         /* No scrolling inbetween, send middle-click */
 720                                         input_event(field->hidinput->input,
 721                                                 EV_KEY, BTN_MIDDLE, 1);
 722                                         input_sync(field->hidinput->input);
 723                                         input_event(field->hidinput->input,
 724                                                 EV_KEY, BTN_MIDDLE, 0);
 725                                         input_sync(field->hidinput->input);
 726                                 }
 727                                 cptkbd_data->middlebutton_state = 0;
 728                         }
 729                         return 1;
 730                 }
 731         }
 732
 733         if (usage->type == EV_KEY && usage->code == KEY_FN_ESC && value == 1) {
 734                 /*
 735                  * The user has toggled the Fn-lock state. Toggle our own
 736                  * cached value of it and sync our value to the keyboard to
 737                  * ensure things are in sync (the syncing should be a no-op).
 738                  */
 739                 cptkbd_data->fn_lock = !cptkbd_data->fn_lock;
 740         }
 741
 742         return 0;
 743 }
 744
 745 static int lenovo_event(struct hid_device *hdev, struct hid_field *field,
 746                 struct hid_usage *usage, __s32 value)
 747 {
 748         if (!hid_get_drvdata(hdev))
 749                 return 0;
 750
 751         switch (hdev->product) {
 752         case USB_DEVICE_ID_LENOVO_CUSBKBD:
 753         case USB_DEVICE_ID_LENOVO_CBTKBD:
 754         case USB_DEVICE_ID_LENOVO_TPIIUSBKBD:
 755         case USB_DEVICE_ID_LENOVO_TPIIBTKBD:
 756                 return lenovo_event_cptkbd(hdev, field, usage, value);
 757         case USB_DEVICE_ID_LENOVO_TP10UBKBD:
 758         case USB_DEVICE_ID_LENOVO_X1_TAB:
 759                 return lenovo_event_tp10ubkbd(hdev, field, usage, value);
 760         default:
 761                 return 0;
 762         }
 763 }
 764
 765 static int lenovo_features_set_tpkbd(struct hid_device *hdev)
 766 {
 767         struct hid_report *report;
 768         struct lenovo_drvdata *data_pointer = hid_get_drvdata(hdev);
 769
 770         report = hdev->report_enum[HID_FEATURE_REPORT].report_id_hash[4];
 771
 772         report->field[0]->value[0]  = data_pointer->press_to_select   ? 0x01 : 0x02;
 773         report->field[0]->value[0] |= data_pointer->dragging          ? 0x04 : 0x08;
 774         report->field[0]->value[0] |= data_pointer->release_to_select ? 0x10 : 0x20;
 775         report->field[0]->value[0] |= data_pointer->select_right      ? 0x80 : 0x40;
 776         report->field[1]->value[0] = 0x03; // unknown setting, imitate windows driver
 777         report->field[2]->value[0] = data_pointer->sensitivity;
 778         report->field[3]->value[0] = data_pointer->press_speed;
 779
 780         hid_hw_request(hdev, report, HID_REQ_SET_REPORT);
 781         return 0;
 782 }
 783
 784 static ssize_t attr_press_to_select_show_tpkbd(struct device *dev,
 785                 struct device_attribute *attr,
 786                 char *buf)
 787 {
 788         struct hid_device *hdev = to_hid_device(dev);
 789         struct lenovo_drvdata *data_pointer = hid_get_drvdata(hdev);
 790
 791         return snprintf(buf, PAGE_SIZE, "%u\n", data_pointer->press_to_select);
 792 }
 793
 794 static ssize_t attr_press_to_select_store_tpkbd(struct device *dev,
 795                 struct device_attribute *attr,
 796                 const char *buf,
 797                 size_t count)
 798 {
 799         struct hid_device *hdev = to_hid_device(dev);
 800         struct lenovo_drvdata *data_pointer = hid_get_drvdata(hdev);
 801         int value;
 802
 803         if (kstrtoint(buf, 10, &value))
 804                 return -EINVAL;
 805         if (value < 0 || value > 1)
 806                 return -EINVAL;
 807
 808         data_pointer->press_to_select = value;
 809         lenovo_features_set_tpkbd(hdev);
 810
 811         return count;
 812 }
 813
 814 static ssize_t attr_dragging_show_tpkbd(struct device *dev,
 815                 struct device_attribute *attr,
 816                 char *buf)
 817 {
 818         struct hid_device *hdev = to_hid_device(dev);
 819         struct lenovo_drvdata *data_pointer = hid_get_drvdata(hdev);
 820
 821         return snprintf(buf, PAGE_SIZE, "%u\n", data_pointer->dragging);
 822 }
 823
 824 static ssize_t attr_dragging_store_tpkbd(struct device *dev,
 825                 struct device_attribute *attr,
 826                 const char *buf,
 827                 size_t count)
 828 {
 829         struct hid_device *hdev = to_hid_device(dev);
 830         struct lenovo_drvdata *data_pointer = hid_get_drvdata(hdev);
 831         int value;
 832
 833         if (kstrtoint(buf, 10, &value))
 834                 return -EINVAL;
 835         if (value < 0 || value > 1)
 836                 return -EINVAL;
 837
 838         data_pointer->dragging = value;
 839         lenovo_features_set_tpkbd(hdev);
 840
 841         return count;
 842 }
 843
 844 static ssize_t attr_release_to_select_show_tpkbd(struct device *dev,
 845                 struct device_attribute *attr,
 846                 char *buf)
 847 {
 848         struct hid_device *hdev = to_hid_device(dev);
 849         struct lenovo_drvdata *data_pointer = hid_get_drvdata(hdev);
 850
 851         return snprintf(buf, PAGE_SIZE, "%u\n", data_pointer->release_to_select);
 852 }
 853
 854 static ssize_t attr_release_to_select_store_tpkbd(struct device *dev,
 855                 struct device_attribute *attr,
 856                 const char *buf,
 857                 size_t count)
 858 {
 859         struct hid_device *hdev = to_hid_device(dev);
 860         struct lenovo_drvdata *data_pointer = hid_get_drvdata(hdev);
 861         int value;
 862
 863         if (kstrtoint(buf, 10, &value))
 864                 return -EINVAL;
 865         if (value < 0 || value > 1)
 866                 return -EINVAL;
 867
 868         data_pointer->release_to_select = value;
 869         lenovo_features_set_tpkbd(hdev);
 870
 871         return count;
 872 }
 873
 874 static ssize_t attr_select_right_show_tpkbd(struct device *dev,
 875                 struct device_attribute *attr,
 876                 char *buf)
 877 {
 878         struct hid_device *hdev = to_hid_device(dev);
 879         struct lenovo_drvdata *data_pointer = hid_get_drvdata(hdev);
 880
 881         return snprintf(buf, PAGE_SIZE, "%u\n", data_pointer->select_right);
 882 }
 883
 884 static ssize_t attr_select_right_store_tpkbd(struct device *dev,
 885                 struct device_attribute *attr,
 886                 const char *buf,
 887                 size_t count)
 888 {
 889         struct hid_device *hdev = to_hid_device(dev);
 890         struct lenovo_drvdata *data_pointer = hid_get_drvdata(hdev);
 891         int value;
 892
 893         if (kstrtoint(buf, 10, &value))
 894                 return -EINVAL;
 895         if (value < 0 || value > 1)
 896                 return -EINVAL;
 897
 898         data_pointer->select_right = value;
 899         lenovo_features_set_tpkbd(hdev);
 900
 901         return count;
 902 }
 903
 904 static ssize_t attr_sensitivity_show_tpkbd(struct device *dev,
 905                 struct device_attribute *attr,
 906                 char *buf)
 907 {
 908         struct hid_device *hdev = to_hid_device(dev);
 909         struct lenovo_drvdata *data_pointer = hid_get_drvdata(hdev);
 910
 911         return snprintf(buf, PAGE_SIZE, "%u\n",
 912                 data_pointer->sensitivity);
 913 }
 914
 915 static ssize_t attr_sensitivity_store_tpkbd(struct device *dev,
 916                 struct device_attribute *attr,
 917                 const char *buf,
 918                 size_t count)
 919 {
 920         struct hid_device *hdev = to_hid_device(dev);
 921         struct lenovo_drvdata *data_pointer = hid_get_drvdata(hdev);
 922         int value;
 923
 924         if (kstrtoint(buf, 10, &value) || value < 1 || value > 255)
 925                 return -EINVAL;
 926
 927         data_pointer->sensitivity = value;
 928         lenovo_features_set_tpkbd(hdev);
 929
 930         return count;
 931 }
 932
 933 static ssize_t attr_press_speed_show_tpkbd(struct device *dev,
 934                 struct device_attribute *attr,
 935                 char *buf)
 936 {
 937         struct hid_device *hdev = to_hid_device(dev);
 938         struct lenovo_drvdata *data_pointer = hid_get_drvdata(hdev);
 939
 940         return snprintf(buf, PAGE_SIZE, "%u\n",
 941                 data_pointer->press_speed);
 942 }
 943
 944 static ssize_t attr_press_speed_store_tpkbd(struct device *dev,
 945                 struct device_attribute *attr,
 946                 const char *buf,
 947                 size_t count)
 948 {
 949         struct hid_device *hdev = to_hid_device(dev);
 950         struct lenovo_drvdata *data_pointer = hid_get_drvdata(hdev);
 951         int value;
 952
 953         if (kstrtoint(buf, 10, &value) || value < 1 || value > 255)
 954                 return -EINVAL;
 955
 956         data_pointer->press_speed = value;
 957         lenovo_features_set_tpkbd(hdev);
 958
 959         return count;
 960 }
 961
 962 static struct device_attribute dev_attr_press_to_select_tpkbd =
 963         __ATTR(press_to_select, S_IWUSR | S_IRUGO,
 964                         attr_press_to_select_show_tpkbd,
 965                         attr_press_to_select_store_tpkbd);
 966
 967 static struct device_attribute dev_attr_dragging_tpkbd =
 968         __ATTR(dragging, S_IWUSR | S_IRUGO,
 969                         attr_dragging_show_tpkbd,
 970                         attr_dragging_store_tpkbd);
 971
 972 static struct device_attribute dev_attr_release_to_select_tpkbd =
 973         __ATTR(release_to_select, S_IWUSR | S_IRUGO,
 974                         attr_release_to_select_show_tpkbd,
 975                         attr_release_to_select_store_tpkbd);
 976
 977 static struct device_attribute dev_attr_select_right_tpkbd =
 978         __ATTR(select_right, S_IWUSR | S_IRUGO,
 979                         attr_select_right_show_tpkbd,
 980                         attr_select_right_store_tpkbd);
 981
 982 static struct device_attribute dev_attr_sensitivity_tpkbd =
 983         __ATTR(sensitivity, S_IWUSR | S_IRUGO,
 984                         attr_sensitivity_show_tpkbd,
 985                         attr_sensitivity_store_tpkbd);
 986
 987 static struct device_attribute dev_attr_press_speed_tpkbd =
 988         __ATTR(press_speed, S_IWUSR | S_IRUGO,
 989                         attr_press_speed_show_tpkbd,
 990                         attr_press_speed_store_tpkbd);
 991
 992 static struct attribute *lenovo_attributes_tpkbd[] = {
 993         &dev_attr_press_to_select_tpkbd.attr,
 994         &dev_attr_dragging_tpkbd.attr,
 995         &dev_attr_release_to_select_tpkbd.attr,
 996         &dev_attr_select_right_tpkbd.attr,
 997         &dev_attr_sensitivity_tpkbd.attr,
 998         &dev_attr_press_speed_tpkbd.attr,
 999         NULL
1000 };
1001
1002 static const struct attribute_group lenovo_attr_group_tpkbd = {
1003         .attrs = lenovo_attributes_tpkbd,
1004 };
1005
1006 static void lenovo_led_set_tpkbd(struct hid_device *hdev)
1007 {
1008         struct lenovo_drvdata *data_pointer = hid_get_drvdata(hdev);
1009         struct hid_report *report;
1010
1011         report = hdev->report_enum[HID_OUTPUT_REPORT].report_id_hash[3];
1012         report->field[0]->value[0] = (data_pointer->led_state >> 0) & 1;
1013         report->field[0]->value[1] = (data_pointer->led_state >> 1) & 1;
1014         hid_hw_request(hdev, report, HID_REQ_SET_REPORT);
1015 }
1016
1017 static int lenovo_led_brightness_set(struct led_classdev *led_cdev,
1018                         enum led_brightness value)
1019 {
1020         struct device *dev = led_cdev->dev->parent;
1021         struct hid_device *hdev = to_hid_device(dev);
1022         struct lenovo_drvdata *data_pointer = hid_get_drvdata(hdev);
1023         static const u8 tp10ubkbd_led[] = { TP10UBKBD_MUTE_LED, TP10UBKBD_MICMUTE_LED };
1024         int led_nr = 0;
1025         int ret = 0;
1026
1027         if (led_cdev == &data_pointer->led_micmute)
1028                 led_nr = 1;
1029
1030         if (value == LED_OFF)
1031                 data_pointer->led_state &= ~(1 << led_nr);
1032         else
1033                 data_pointer->led_state |= 1 << led_nr;
1034
1035         switch (hdev->product) {
1036         case USB_DEVICE_ID_LENOVO_TPKBD:
1037                 lenovo_led_set_tpkbd(hdev);
1038                 break;
1039         case USB_DEVICE_ID_LENOVO_TP10UBKBD:
1040         case USB_DEVICE_ID_LENOVO_X1_TAB:
1041                 ret = lenovo_led_set_tp10ubkbd(hdev, tp10ubkbd_led[led_nr], value);
1042                 break;
1043         }
1044
1045         return ret;
1046 }
1047
1048 static int lenovo_register_leds(struct hid_device *hdev)
1049 {
1050         struct lenovo_drvdata *data = hid_get_drvdata(hdev);
1051         size_t name_sz = strlen(dev_name(&hdev->dev)) + 16;
1052         char *name_mute, *name_micm;
1053         int ret;
1054
1055         name_mute = devm_kzalloc(&hdev->dev, name_sz, GFP_KERNEL);
1056         name_micm = devm_kzalloc(&hdev->dev, name_sz, GFP_KERNEL);
1057         if (name_mute == NULL || name_micm == NULL) {
1058                 hid_err(hdev, "Could not allocate memory for led data\n");
1059                 return -ENOMEM;
1060         }
1061         snprintf(name_mute, name_sz, "%s:amber:mute", dev_name(&hdev->dev));
1062         snprintf(name_micm, name_sz, "%s:amber:micmute", dev_name(&hdev->dev));
1063
1064         data->led_mute.name = name_mute;
1065         data->led_mute.default_trigger = "audio-mute";
1066         data->led_mute.brightness_set_blocking = lenovo_led_brightness_set;
1067         data->led_mute.max_brightness = 1;
1068         data->led_mute.flags = LED_HW_PLUGGABLE;
1069         data->led_mute.dev = &hdev->dev;
1070         ret = led_classdev_register(&hdev->dev, &data->led_mute);
1071         if (ret < 0)
1072                 return ret;
1073
1074         data->led_micmute.name = name_micm;
1075         data->led_micmute.default_trigger = "audio-micmute";
1076         data->led_micmute.brightness_set_blocking = lenovo_led_brightness_set;
1077         data->led_micmute.max_brightness = 1;
1078         data->led_micmute.flags = LED_HW_PLUGGABLE;
1079         data->led_micmute.dev = &hdev->dev;
1080         ret = led_classdev_register(&hdev->dev, &data->led_micmute);
1081         if (ret < 0) {
1082                 led_classdev_unregister(&data->led_mute);
1083                 return ret;
1084         }
1085
1086         return 0;
1087 }
1088
1089 static int lenovo_probe_tpkbd(struct hid_device *hdev)
1090 {
1091         struct lenovo_drvdata *data_pointer;
1092         int i, ret;
1093
1094         /*
1095          * Only register extra settings against subdevice where input_mapping
1096          * set drvdata to 1, i.e. the trackpoint.
1097          */
1098         if (!hid_get_drvdata(hdev))
1099                 return 0;
1100
1101         hid_set_drvdata(hdev, NULL);
1102
1103         /* Validate required reports. */
1104         for (i = 0; i < 4; i++) {
1105                 if (!hid_validate_values(hdev, HID_FEATURE_REPORT, 4, i, 1))
1106                         return -ENODEV;
1107         }
1108         if (!hid_validate_values(hdev, HID_OUTPUT_REPORT, 3, 0, 2))
1109                 return -ENODEV;
1110
1111         ret = sysfs_create_group(&hdev->dev.kobj, &lenovo_attr_group_tpkbd);
1112         if (ret)
1113                 hid_warn(hdev, "Could not create sysfs group: %d\n", ret);
1114
1115         data_pointer = devm_kzalloc(&hdev->dev,
1116                                     sizeof(struct lenovo_drvdata),
1117                                     GFP_KERNEL);
1118         if (data_pointer == NULL) {
1119                 hid_err(hdev, "Could not allocate memory for driver data\n");
1120                 ret = -ENOMEM;
1121                 goto err;
1122         }
1123
1124         // set same default values as windows driver
1125         data_pointer->sensitivity = 0xa0;
1126         data_pointer->press_speed = 0x38;
1127
1128         hid_set_drvdata(hdev, data_pointer);
1129
1130         ret = lenovo_register_leds(hdev);
1131         if (ret)
1132                 goto err;
1133
1134         lenovo_features_set_tpkbd(hdev);
1135
1136         return 0;
1137 err:
1138         sysfs_remove_group(&hdev->dev.kobj, &lenovo_attr_group_tpkbd);
1139         return ret;
1140 }
1141
1142 static int lenovo_probe_cptkbd(struct hid_device *hdev)
1143 {
1144         int ret;
1145         struct lenovo_drvdata *cptkbd_data;
1146
1147         /* All the custom action happens on the USBMOUSE device for USB */
1148         if (((hdev->product == USB_DEVICE_ID_LENOVO_CUSBKBD) ||
1149             (hdev->product == USB_DEVICE_ID_LENOVO_TPIIUSBKBD)) &&
1150             hdev->type != HID_TYPE_USBMOUSE) {
1151                 hid_dbg(hdev, "Ignoring keyboard half of device\n");
1152                 return 0;
1153         }
1154
1155         cptkbd_data = devm_kzalloc(&hdev->dev,
1156                                         sizeof(*cptkbd_data),
1157                                         GFP_KERNEL);
1158         if (cptkbd_data == NULL) {
1159                 hid_err(hdev, "can't alloc keyboard descriptor\n");
1160                 return -ENOMEM;
1161         }
1162         hid_set_drvdata(hdev, cptkbd_data);
1163
1164         /* Set keyboard settings to known state */
1165         cptkbd_data->middlebutton_state = 0;
1166         cptkbd_data->fn_lock = true;
1167         cptkbd_data->sensitivity = 0x05;
1168         lenovo_features_set_cptkbd(hdev);
1169
1170         ret = sysfs_create_group(&hdev->dev.kobj, &lenovo_attr_group_cptkbd);
1171         if (ret)
1172                 hid_warn(hdev, "Could not create sysfs group: %d\n", ret);
1173
1174         return 0;
1175 }
1176
1177 static struct attribute *lenovo_attributes_tp10ubkbd[] = {
1178         &dev_attr_fn_lock.attr,
1179         NULL
1180 };
1181
1182 static const struct attribute_group lenovo_attr_group_tp10ubkbd = {
1183         .attrs = lenovo_attributes_tp10ubkbd,
1184 };
1185
1186 static int lenovo_probe_tp10ubkbd(struct hid_device *hdev)
1187 {
1188         struct hid_report_enum *rep_enum;
1189         struct lenovo_drvdata *data;
1190         struct hid_report *rep;
1191         bool found;
1192         int ret;
1193
1194         /*
1195          * The LEDs and the Fn-lock functionality use output report 9,
1196          * with an application of 0xffa0001, add the LEDs on the interface
1197          * with this output report.
1198          */
1199         found = false;
1200         rep_enum = &hdev->report_enum[HID_OUTPUT_REPORT];
1201         list_for_each_entry(rep, &rep_enum->report_list, list) {
1202                 if (rep->application == 0xffa00001)
1203                         found = true;
1204         }
1205         if (!found)
1206                 return 0;
1207
1208         data = devm_kzalloc(&hdev->dev, sizeof(*data), GFP_KERNEL);
1209         if (!data)
1210                 return -ENOMEM;
1211
1212         mutex_init(&data->led_report_mutex);
1213         INIT_WORK(&data->fn_lock_sync_work, lenovo_tp10ubkbd_sync_fn_lock);
1214         data->hdev = hdev;
1215
1216         hid_set_drvdata(hdev, data);
1217
1218         /*
1219          * The Thinkpad 10 ultrabook USB kbd dock's Fn-lock defaults to on.
1220          * We cannot read the state, only set it, so we force it to on here
1221          * (which should be a no-op) to make sure that our state matches the
1222          * keyboard's FN-lock state. This is the same as what Windows does.
1223          */
1224         data->fn_lock = true;
1225         lenovo_led_set_tp10ubkbd(hdev, TP10UBKBD_FN_LOCK_LED, data->fn_lock);
1226
1227         ret = sysfs_create_group(&hdev->dev.kobj, &lenovo_attr_group_tp10ubkbd);
1228         if (ret)
1229                 return ret;
1230
1231         ret = lenovo_register_leds(hdev);
1232         if (ret)
1233                 goto err;
1234
1235         return 0;
1236 err:
1237         sysfs_remove_group(&hdev->dev.kobj, &lenovo_attr_group_tp10ubkbd);
1238         return ret;
1239 }
1240
1241 static int lenovo_probe(struct hid_device *hdev,
1242                 const struct hid_device_id *id)
1243 {
1244         int ret;
1245
1246         ret = hid_parse(hdev);
1247         if (ret) {
1248                 hid_err(hdev, "hid_parse failed\n");
1249                 goto err;
1250         }
1251
1252         ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
1253         if (ret) {
1254                 hid_err(hdev, "hid_hw_start failed\n");
1255                 goto err;
1256         }
1257
1258         switch (hdev->product) {
1259         case USB_DEVICE_ID_LENOVO_TPKBD:
1260                 ret = lenovo_probe_tpkbd(hdev);
1261                 break;
1262         case USB_DEVICE_ID_LENOVO_CUSBKBD:
1263         case USB_DEVICE_ID_LENOVO_CBTKBD:
1264         case USB_DEVICE_ID_LENOVO_TPIIUSBKBD:
1265         case USB_DEVICE_ID_LENOVO_TPIIBTKBD:
1266                 ret = lenovo_probe_cptkbd(hdev);
1267                 break;
1268         case USB_DEVICE_ID_LENOVO_TP10UBKBD:
1269         case USB_DEVICE_ID_LENOVO_X1_TAB:
1270                 ret = lenovo_probe_tp10ubkbd(hdev);
1271                 break;
1272         default:
1273                 ret = 0;
1274                 break;
1275         }
1276         if (ret)
1277                 goto err_hid;
1278
1279         return 0;
1280 err_hid:
1281         hid_hw_stop(hdev);
1282 err:
1283         return ret;
1284 }
1285
1286 #ifdef CONFIG_PM
1287 static int lenovo_reset_resume(struct hid_device *hdev)
1288 {
1289         switch (hdev->product) {
1290         case USB_DEVICE_ID_LENOVO_CUSBKBD:
1291         case USB_DEVICE_ID_LENOVO_TPIIUSBKBD:
1292                 if (hdev->type == HID_TYPE_USBMOUSE)
1293                         lenovo_features_set_cptkbd(hdev);
1294
1295                 break;
1296         default:
1297                 break;
1298         }
1299
1300         return 0;
1301 }
1302 #endif
1303
1304 static void lenovo_remove_tpkbd(struct hid_device *hdev)
1305 {
1306         struct lenovo_drvdata *data_pointer = hid_get_drvdata(hdev);
1307
1308         /*
1309          * Only the trackpoint half of the keyboard has drvdata and stuff that
1310          * needs unregistering.
1311          */
1312         if (data_pointer == NULL)
1313                 return;
1314
1315         sysfs_remove_group(&hdev->dev.kobj,
1316                         &lenovo_attr_group_tpkbd);
1317
1318         led_classdev_unregister(&data_pointer->led_micmute);
1319         led_classdev_unregister(&data_pointer->led_mute);
1320 }
1321
1322 static void lenovo_remove_cptkbd(struct hid_device *hdev)
1323 {
1324         sysfs_remove_group(&hdev->dev.kobj,
1325                         &lenovo_attr_group_cptkbd);
1326 }
1327
1328 static void lenovo_remove_tp10ubkbd(struct hid_device *hdev)
1329 {
1330         struct lenovo_drvdata *data = hid_get_drvdata(hdev);
1331
1332         if (data == NULL)
1333                 return;
1334
1335         led_classdev_unregister(&data->led_micmute);
1336         led_classdev_unregister(&data->led_mute);
1337
1338         sysfs_remove_group(&hdev->dev.kobj, &lenovo_attr_group_tp10ubkbd);
1339         cancel_work_sync(&data->fn_lock_sync_work);
1340 }
1341
1342 static void lenovo_remove(struct hid_device *hdev)
1343 {
1344         switch (hdev->product) {
1345         case USB_DEVICE_ID_LENOVO_TPKBD:
1346                 lenovo_remove_tpkbd(hdev);
1347                 break;
1348         case USB_DEVICE_ID_LENOVO_CUSBKBD:
1349         case USB_DEVICE_ID_LENOVO_CBTKBD:
1350         case USB_DEVICE_ID_LENOVO_TPIIUSBKBD:
1351         case USB_DEVICE_ID_LENOVO_TPIIBTKBD:
1352                 lenovo_remove_cptkbd(hdev);
1353                 break;
1354         case USB_DEVICE_ID_LENOVO_TP10UBKBD:
1355         case USB_DEVICE_ID_LENOVO_X1_TAB:
1356                 lenovo_remove_tp10ubkbd(hdev);
1357                 break;
1358         }
1359
1360         hid_hw_stop(hdev);
1361 }
1362
1363 static int lenovo_input_configured(struct hid_device *hdev,
1364                 struct hid_input *hi)
1365 {
1366         switch (hdev->product) {
1367                 case USB_DEVICE_ID_LENOVO_TPKBD:
1368                 case USB_DEVICE_ID_LENOVO_CUSBKBD:
1369                 case USB_DEVICE_ID_LENOVO_CBTKBD:
1370                 case USB_DEVICE_ID_LENOVO_TPIIUSBKBD:
1371                 case USB_DEVICE_ID_LENOVO_TPIIBTKBD:
1372                         if (test_bit(EV_REL, hi->input->evbit)) {
1373                                 /* set only for trackpoint device */
1374                                 __set_bit(INPUT_PROP_POINTER, hi->input->propbit);
1375                                 __set_bit(INPUT_PROP_POINTING_STICK,
1376                                                 hi->input->propbit);
1377                         }
1378                         break;
1379         }
1380
1381         return 0;
1382 }
1383
1384
1385 static const struct hid_device_id lenovo_devices[] = {
1386         { HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_TPKBD) },
1387         { HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_CUSBKBD) },
1388         { HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_TPIIUSBKBD) },
1389         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_CBTKBD) },
1390         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_TPIIBTKBD) },
1391         { HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_TPPRODOCK) },
1392         { HID_USB_DEVICE(USB_VENDOR_ID_IBM, USB_DEVICE_ID_IBM_SCROLLPOINT_III) },
1393         { HID_USB_DEVICE(USB_VENDOR_ID_IBM, USB_DEVICE_ID_IBM_SCROLLPOINT_PRO) },
1394         { HID_USB_DEVICE(USB_VENDOR_ID_IBM, USB_DEVICE_ID_IBM_SCROLLPOINT_OPTICAL) },
1395         { HID_USB_DEVICE(USB_VENDOR_ID_IBM, USB_DEVICE_ID_IBM_SCROLLPOINT_800DPI_OPTICAL) },
1396         { HID_USB_DEVICE(USB_VENDOR_ID_IBM, USB_DEVICE_ID_IBM_SCROLLPOINT_800DPI_OPTICAL_PRO) },
1397         { HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_SCROLLPOINT_OPTICAL) },
1398         { HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_TP10UBKBD) },
1399         /*
1400          * Note bind to the HID_GROUP_GENERIC group, so that we only bind to the keyboard
1401          * part, while letting hid-multitouch.c handle the touchpad and trackpoint.
1402          */
1403         { HID_DEVICE(BUS_USB, HID_GROUP_GENERIC,
1404                      USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_X1_TAB) },
1405         { }
1406 };
1407
1408 MODULE_DEVICE_TABLE(hid, lenovo_devices);
1409
1410 static struct hid_driver lenovo_driver = {
1411         .name = "lenovo",
1412         .id_table = lenovo_devices,
1413         .input_configured = lenovo_input_configured,
1414         .input_mapping = lenovo_input_mapping,
1415         .probe = lenovo_probe,
1416         .remove = lenovo_remove,
1417         .raw_event = lenovo_raw_event,
1418         .event = lenovo_event,
1419         .report_fixup = lenovo_report_fixup,
1420 #ifdef CONFIG_PM
1421         .reset_resume = lenovo_reset_resume,
1422 #endif
1423 };
1424 module_hid_driver(lenovo_driver);
1425
1426 MODULE_LICENSE("GPL");