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 <[email protected]>
  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 <[email protected]>
  21  *  Copyright (c) 2018 Peter Ganzhorn <[email protected]>
  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          */
  58         u8 middlebutton_state;
  59         bool fn_lock;
  60         bool middleclick_workaround_cptkbd;
  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 const __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         case USB_DEVICE_ID_LENOVO_X1_TAB3:
 477                 return lenovo_input_mapping_x1_tab_kbd(hdev, hi, field, usage, bit, max);
 478         default:
 479                 return 0;
 480         }
 481 }
 482
 483 #undef map_key_clear
 484
 485 /* Send a config command to the keyboard */
 486 static int lenovo_send_cmd_cptkbd(struct hid_device *hdev,
 487                         unsigned char byte2, unsigned char byte3)
 488 {
 489         int ret;
 490         unsigned char *buf;
 491
 492         buf = kzalloc(3, GFP_KERNEL);
 493         if (!buf)
 494                 return -ENOMEM;
 495
 496         /*
 497          * Feature report 0x13 is used for USB,
 498          * output report 0x18 is used for Bluetooth.
 499          * buf[0] is ignored by hid_hw_raw_request.
 500          */
 501         buf[0] = 0x18;
 502         buf[1] = byte2;
 503         buf[2] = byte3;
 504
 505         switch (hdev->product) {
 506         case USB_DEVICE_ID_LENOVO_CUSBKBD:
 507         case USB_DEVICE_ID_LENOVO_TPIIUSBKBD:
 508                 ret = hid_hw_raw_request(hdev, 0x13, buf, 3,
 509                                         HID_FEATURE_REPORT, HID_REQ_SET_REPORT);
 510                 break;
 511         case USB_DEVICE_ID_LENOVO_CBTKBD:
 512         case USB_DEVICE_ID_LENOVO_TPIIBTKBD:
 513                 ret = hid_hw_output_report(hdev, buf, 3);
 514                 break;
 515         default:
 516                 ret = -EINVAL;
 517                 break;
 518         }
 519
 520         kfree(buf);
 521
 522         return ret < 0 ? ret : 0; /* BT returns 0, USB returns sizeof(buf) */
 523 }
 524
 525 static void lenovo_features_set_cptkbd(struct hid_device *hdev)
 526 {
 527         int ret;
 528         struct lenovo_drvdata *cptkbd_data = hid_get_drvdata(hdev);
 529
 530         /*
 531          * Tell the keyboard a driver understands it, and turn F7, F9, F11 into
 532          * regular keys
 533          */
 534         ret = lenovo_send_cmd_cptkbd(hdev, 0x01, 0x03);
 535         if (ret)
 536                 hid_warn(hdev, "Failed to switch F7/9/11 mode: %d\n", ret);
 537
 538         /* Switch middle button to native mode */
 539         ret = lenovo_send_cmd_cptkbd(hdev, 0x09, 0x01);
 540         if (ret)
 541                 hid_warn(hdev, "Failed to switch middle button: %d\n", ret);
 542
 543         ret = lenovo_send_cmd_cptkbd(hdev, 0x05, cptkbd_data->fn_lock);
 544         if (ret)
 545                 hid_err(hdev, "Fn-lock setting failed: %d\n", ret);
 546
 547         ret = lenovo_send_cmd_cptkbd(hdev, 0x02, cptkbd_data->sensitivity);
 548         if (ret)
 549                 hid_err(hdev, "Sensitivity setting failed: %d\n", ret);
 550 }
 551
 552 static ssize_t attr_fn_lock_show(struct device *dev,
 553                 struct device_attribute *attr,
 554                 char *buf)
 555 {
 556         struct hid_device *hdev = to_hid_device(dev);
 557         struct lenovo_drvdata *data = hid_get_drvdata(hdev);
 558
 559         return sysfs_emit(buf, "%u\n", data->fn_lock);
 560 }
 561
 562 static ssize_t attr_fn_lock_store(struct device *dev,
 563                 struct device_attribute *attr,
 564                 const char *buf,
 565                 size_t count)
 566 {
 567         struct hid_device *hdev = to_hid_device(dev);
 568         struct lenovo_drvdata *data = hid_get_drvdata(hdev);
 569         int value, ret;
 570
 571         if (kstrtoint(buf, 10, &value))
 572                 return -EINVAL;
 573         if (value < 0 || value > 1)
 574                 return -EINVAL;
 575
 576         data->fn_lock = !!value;
 577
 578         switch (hdev->product) {
 579         case USB_DEVICE_ID_LENOVO_CUSBKBD:
 580         case USB_DEVICE_ID_LENOVO_CBTKBD:
 581         case USB_DEVICE_ID_LENOVO_TPIIUSBKBD:
 582         case USB_DEVICE_ID_LENOVO_TPIIBTKBD:
 583                 lenovo_features_set_cptkbd(hdev);
 584                 break;
 585         case USB_DEVICE_ID_LENOVO_TP10UBKBD:
 586         case USB_DEVICE_ID_LENOVO_X1_TAB:
 587         case USB_DEVICE_ID_LENOVO_X1_TAB3:
 588                 ret = lenovo_led_set_tp10ubkbd(hdev, TP10UBKBD_FN_LOCK_LED, value);
 589                 if (ret)
 590                         return ret;
 591                 break;
 592         }
 593
 594         return count;
 595 }
 596
 597 static ssize_t attr_sensitivity_show_cptkbd(struct device *dev,
 598                 struct device_attribute *attr,
 599                 char *buf)
 600 {
 601         struct hid_device *hdev = to_hid_device(dev);
 602         struct lenovo_drvdata *cptkbd_data = hid_get_drvdata(hdev);
 603
 604         return sysfs_emit(buf, "%u\n", cptkbd_data->sensitivity);
 605 }
 606
 607 static ssize_t attr_sensitivity_store_cptkbd(struct device *dev,
 608                 struct device_attribute *attr,
 609                 const char *buf,
 610                 size_t count)
 611 {
 612         struct hid_device *hdev = to_hid_device(dev);
 613         struct lenovo_drvdata *cptkbd_data = hid_get_drvdata(hdev);
 614         int value;
 615
 616         if (kstrtoint(buf, 10, &value) || value < 1 || value > 255)
 617                 return -EINVAL;
 618
 619         cptkbd_data->sensitivity = value;
 620         lenovo_features_set_cptkbd(hdev);
 621
 622         return count;
 623 }
 624
 625 static ssize_t attr_middleclick_workaround_show_cptkbd(struct device *dev,
 626                 struct device_attribute *attr,
 627                 char *buf)
 628 {
 629         struct hid_device *hdev = to_hid_device(dev);
 630         struct lenovo_drvdata *cptkbd_data = hid_get_drvdata(hdev);
 631
 632         return sysfs_emit(buf, "%u\n",
 633                           cptkbd_data->middleclick_workaround_cptkbd);
 634 }
 635
 636 static ssize_t attr_middleclick_workaround_store_cptkbd(struct device *dev,
 637                 struct device_attribute *attr,
 638                 const char *buf,
 639                 size_t count)
 640 {
 641         struct hid_device *hdev = to_hid_device(dev);
 642         struct lenovo_drvdata *cptkbd_data = hid_get_drvdata(hdev);
 643         int value;
 644
 645         if (kstrtoint(buf, 10, &value))
 646                 return -EINVAL;
 647         if (value < 0 || value > 1)
 648                 return -EINVAL;
 649
 650         cptkbd_data->middleclick_workaround_cptkbd = !!value;
 651
 652         return count;
 653 }
 654
 655
 656 static struct device_attribute dev_attr_fn_lock =
 657         __ATTR(fn_lock, S_IWUSR | S_IRUGO,
 658                         attr_fn_lock_show,
 659                         attr_fn_lock_store);
 660
 661 static struct device_attribute dev_attr_sensitivity_cptkbd =
 662         __ATTR(sensitivity, S_IWUSR | S_IRUGO,
 663                         attr_sensitivity_show_cptkbd,
 664                         attr_sensitivity_store_cptkbd);
 665
 666 static struct device_attribute dev_attr_middleclick_workaround_cptkbd =
 667         __ATTR(middleclick_workaround, S_IWUSR | S_IRUGO,
 668                         attr_middleclick_workaround_show_cptkbd,
 669                         attr_middleclick_workaround_store_cptkbd);
 670
 671
 672 static struct attribute *lenovo_attributes_cptkbd[] = {
 673         &dev_attr_fn_lock.attr,
 674         &dev_attr_sensitivity_cptkbd.attr,
 675         &dev_attr_middleclick_workaround_cptkbd.attr,
 676         NULL
 677 };
 678
 679 static const struct attribute_group lenovo_attr_group_cptkbd = {
 680         .attrs = lenovo_attributes_cptkbd,
 681 };
 682
 683 static int lenovo_raw_event(struct hid_device *hdev,
 684                         struct hid_report *report, u8 *data, int size)
 685 {
 686         /*
 687          * Compact USB keyboard's Fn-F12 report holds down many other keys, and
 688          * its own key is outside the usage page range. Remove extra
 689          * keypresses and remap to inside usage page.
 690          */
 691         if (unlikely(hdev->product == USB_DEVICE_ID_LENOVO_CUSBKBD
 692                         && size == 3
 693                         && data[0] == 0x15
 694                         && data[1] == 0x94
 695                         && data[2] == 0x01)) {
 696                 data[1] = 0x00;
 697                 data[2] = 0x01;
 698         }
 699
 700         return 0;
 701 }
 702
 703 static int lenovo_event_tp10ubkbd(struct hid_device *hdev,
 704                 struct hid_field *field, struct hid_usage *usage, __s32 value)
 705 {
 706         struct lenovo_drvdata *data = hid_get_drvdata(hdev);
 707
 708         if (usage->type == EV_KEY && usage->code == KEY_FN_ESC && value == 1) {
 709                 /*
 710                  * The user has toggled the Fn-lock state. Toggle our own
 711                  * cached value of it and sync our value to the keyboard to
 712                  * ensure things are in sync (the sycning should be a no-op).
 713                  */
 714                 data->fn_lock = !data->fn_lock;
 715                 schedule_work(&data->fn_lock_sync_work);
 716         }
 717
 718         return 0;
 719 }
 720
 721 static int lenovo_event_cptkbd(struct hid_device *hdev,
 722                 struct hid_field *field, struct hid_usage *usage, __s32 value)
 723 {
 724         struct lenovo_drvdata *cptkbd_data = hid_get_drvdata(hdev);
 725
 726         if (cptkbd_data->middleclick_workaround_cptkbd) {
 727                 /* "wheel" scroll events */
 728                 if (usage->type == EV_REL && (usage->code == REL_WHEEL ||
 729                                 usage->code == REL_HWHEEL)) {
 730                         /* Scroll events disable middle-click event */
 731                         cptkbd_data->middlebutton_state = 2;
 732                         return 0;
 733                 }
 734
 735                 /* Middle click events */
 736                 if (usage->type == EV_KEY && usage->code == BTN_MIDDLE) {
 737                         if (value == 1) {
 738                                 cptkbd_data->middlebutton_state = 1;
 739                         } else if (value == 0) {
 740                                 if (cptkbd_data->middlebutton_state == 1) {
 741                                         /* No scrolling inbetween, send middle-click */
 742                                         input_event(field->hidinput->input,
 743                                                 EV_KEY, BTN_MIDDLE, 1);
 744                                         input_sync(field->hidinput->input);
 745                                         input_event(field->hidinput->input,
 746                                                 EV_KEY, BTN_MIDDLE, 0);
 747                                         input_sync(field->hidinput->input);
 748                                 }
 749                                 cptkbd_data->middlebutton_state = 0;
 750                         }
 751                         return 1;
 752                 }
 753         }
 754
 755         if (usage->type == EV_KEY && usage->code == KEY_FN_ESC && value == 1) {
 756                 /*
 757                  * The user has toggled the Fn-lock state. Toggle our own
 758                  * cached value of it and sync our value to the keyboard to
 759                  * ensure things are in sync (the syncing should be a no-op).
 760                  */
 761                 cptkbd_data->fn_lock = !cptkbd_data->fn_lock;
 762         }
 763
 764         return 0;
 765 }
 766
 767 static int lenovo_event(struct hid_device *hdev, struct hid_field *field,
 768                 struct hid_usage *usage, __s32 value)
 769 {
 770         if (!hid_get_drvdata(hdev))
 771                 return 0;
 772
 773         switch (hdev->product) {
 774         case USB_DEVICE_ID_LENOVO_CUSBKBD:
 775         case USB_DEVICE_ID_LENOVO_CBTKBD:
 776         case USB_DEVICE_ID_LENOVO_TPIIUSBKBD:
 777         case USB_DEVICE_ID_LENOVO_TPIIBTKBD:
 778                 return lenovo_event_cptkbd(hdev, field, usage, value);
 779         case USB_DEVICE_ID_LENOVO_TP10UBKBD:
 780         case USB_DEVICE_ID_LENOVO_X1_TAB:
 781         case USB_DEVICE_ID_LENOVO_X1_TAB3:
 782                 return lenovo_event_tp10ubkbd(hdev, field, usage, value);
 783         default:
 784                 return 0;
 785         }
 786 }
 787
 788 static int lenovo_features_set_tpkbd(struct hid_device *hdev)
 789 {
 790         struct hid_report *report;
 791         struct lenovo_drvdata *data_pointer = hid_get_drvdata(hdev);
 792
 793         report = hdev->report_enum[HID_FEATURE_REPORT].report_id_hash[4];
 794
 795         report->field[0]->value[0]  = data_pointer->press_to_select   ? 0x01 : 0x02;
 796         report->field[0]->value[0] |= data_pointer->dragging          ? 0x04 : 0x08;
 797         report->field[0]->value[0] |= data_pointer->release_to_select ? 0x10 : 0x20;
 798         report->field[0]->value[0] |= data_pointer->select_right      ? 0x80 : 0x40;
 799         report->field[1]->value[0] = 0x03; // unknown setting, imitate windows driver
 800         report->field[2]->value[0] = data_pointer->sensitivity;
 801         report->field[3]->value[0] = data_pointer->press_speed;
 802
 803         hid_hw_request(hdev, report, HID_REQ_SET_REPORT);
 804         return 0;
 805 }
 806
 807 static ssize_t attr_press_to_select_show_tpkbd(struct device *dev,
 808                 struct device_attribute *attr,
 809                 char *buf)
 810 {
 811         struct hid_device *hdev = to_hid_device(dev);
 812         struct lenovo_drvdata *data_pointer = hid_get_drvdata(hdev);
 813
 814         return sysfs_emit(buf, "%u\n", data_pointer->press_to_select);
 815 }
 816
 817 static ssize_t attr_press_to_select_store_tpkbd(struct device *dev,
 818                 struct device_attribute *attr,
 819                 const char *buf,
 820                 size_t count)
 821 {
 822         struct hid_device *hdev = to_hid_device(dev);
 823         struct lenovo_drvdata *data_pointer = hid_get_drvdata(hdev);
 824         int value;
 825
 826         if (kstrtoint(buf, 10, &value))
 827                 return -EINVAL;
 828         if (value < 0 || value > 1)
 829                 return -EINVAL;
 830
 831         data_pointer->press_to_select = value;
 832         lenovo_features_set_tpkbd(hdev);
 833
 834         return count;
 835 }
 836
 837 static ssize_t attr_dragging_show_tpkbd(struct device *dev,
 838                 struct device_attribute *attr,
 839                 char *buf)
 840 {
 841         struct hid_device *hdev = to_hid_device(dev);
 842         struct lenovo_drvdata *data_pointer = hid_get_drvdata(hdev);
 843
 844         return sysfs_emit(buf, "%u\n", data_pointer->dragging);
 845 }
 846
 847 static ssize_t attr_dragging_store_tpkbd(struct device *dev,
 848                 struct device_attribute *attr,
 849                 const char *buf,
 850                 size_t count)
 851 {
 852         struct hid_device *hdev = to_hid_device(dev);
 853         struct lenovo_drvdata *data_pointer = hid_get_drvdata(hdev);
 854         int value;
 855
 856         if (kstrtoint(buf, 10, &value))
 857                 return -EINVAL;
 858         if (value < 0 || value > 1)
 859                 return -EINVAL;
 860
 861         data_pointer->dragging = value;
 862         lenovo_features_set_tpkbd(hdev);
 863
 864         return count;
 865 }
 866
 867 static ssize_t attr_release_to_select_show_tpkbd(struct device *dev,
 868                 struct device_attribute *attr,
 869                 char *buf)
 870 {
 871         struct hid_device *hdev = to_hid_device(dev);
 872         struct lenovo_drvdata *data_pointer = hid_get_drvdata(hdev);
 873
 874         return sysfs_emit(buf, "%u\n", data_pointer->release_to_select);
 875 }
 876
 877 static ssize_t attr_release_to_select_store_tpkbd(struct device *dev,
 878                 struct device_attribute *attr,
 879                 const char *buf,
 880                 size_t count)
 881 {
 882         struct hid_device *hdev = to_hid_device(dev);
 883         struct lenovo_drvdata *data_pointer = hid_get_drvdata(hdev);
 884         int value;
 885
 886         if (kstrtoint(buf, 10, &value))
 887                 return -EINVAL;
 888         if (value < 0 || value > 1)
 889                 return -EINVAL;
 890
 891         data_pointer->release_to_select = value;
 892         lenovo_features_set_tpkbd(hdev);
 893
 894         return count;
 895 }
 896
 897 static ssize_t attr_select_right_show_tpkbd(struct device *dev,
 898                 struct device_attribute *attr,
 899                 char *buf)
 900 {
 901         struct hid_device *hdev = to_hid_device(dev);
 902         struct lenovo_drvdata *data_pointer = hid_get_drvdata(hdev);
 903
 904         return sysfs_emit(buf, "%u\n", data_pointer->select_right);
 905 }
 906
 907 static ssize_t attr_select_right_store_tpkbd(struct device *dev,
 908                 struct device_attribute *attr,
 909                 const char *buf,
 910                 size_t count)
 911 {
 912         struct hid_device *hdev = to_hid_device(dev);
 913         struct lenovo_drvdata *data_pointer = hid_get_drvdata(hdev);
 914         int value;
 915
 916         if (kstrtoint(buf, 10, &value))
 917                 return -EINVAL;
 918         if (value < 0 || value > 1)
 919                 return -EINVAL;
 920
 921         data_pointer->select_right = value;
 922         lenovo_features_set_tpkbd(hdev);
 923
 924         return count;
 925 }
 926
 927 static ssize_t attr_sensitivity_show_tpkbd(struct device *dev,
 928                 struct device_attribute *attr,
 929                 char *buf)
 930 {
 931         struct hid_device *hdev = to_hid_device(dev);
 932         struct lenovo_drvdata *data_pointer = hid_get_drvdata(hdev);
 933
 934         return sysfs_emit(buf, "%u\n", data_pointer->sensitivity);
 935 }
 936
 937 static ssize_t attr_sensitivity_store_tpkbd(struct device *dev,
 938                 struct device_attribute *attr,
 939                 const char *buf,
 940                 size_t count)
 941 {
 942         struct hid_device *hdev = to_hid_device(dev);
 943         struct lenovo_drvdata *data_pointer = hid_get_drvdata(hdev);
 944         int value;
 945
 946         if (kstrtoint(buf, 10, &value) || value < 1 || value > 255)
 947                 return -EINVAL;
 948
 949         data_pointer->sensitivity = value;
 950         lenovo_features_set_tpkbd(hdev);
 951
 952         return count;
 953 }
 954
 955 static ssize_t attr_press_speed_show_tpkbd(struct device *dev,
 956                 struct device_attribute *attr,
 957                 char *buf)
 958 {
 959         struct hid_device *hdev = to_hid_device(dev);
 960         struct lenovo_drvdata *data_pointer = hid_get_drvdata(hdev);
 961
 962         return sysfs_emit(buf, "%u\n", data_pointer->press_speed);
 963 }
 964
 965 static ssize_t attr_press_speed_store_tpkbd(struct device *dev,
 966                 struct device_attribute *attr,
 967                 const char *buf,
 968                 size_t count)
 969 {
 970         struct hid_device *hdev = to_hid_device(dev);
 971         struct lenovo_drvdata *data_pointer = hid_get_drvdata(hdev);
 972         int value;
 973
 974         if (kstrtoint(buf, 10, &value) || value < 1 || value > 255)
 975                 return -EINVAL;
 976
 977         data_pointer->press_speed = value;
 978         lenovo_features_set_tpkbd(hdev);
 979
 980         return count;
 981 }
 982
 983 static struct device_attribute dev_attr_press_to_select_tpkbd =
 984         __ATTR(press_to_select, S_IWUSR | S_IRUGO,
 985                         attr_press_to_select_show_tpkbd,
 986                         attr_press_to_select_store_tpkbd);
 987
 988 static struct device_attribute dev_attr_dragging_tpkbd =
 989         __ATTR(dragging, S_IWUSR | S_IRUGO,
 990                         attr_dragging_show_tpkbd,
 991                         attr_dragging_store_tpkbd);
 992
 993 static struct device_attribute dev_attr_release_to_select_tpkbd =
 994         __ATTR(release_to_select, S_IWUSR | S_IRUGO,
 995                         attr_release_to_select_show_tpkbd,
 996                         attr_release_to_select_store_tpkbd);
 997
 998 static struct device_attribute dev_attr_select_right_tpkbd =
 999         __ATTR(select_right, S_IWUSR | S_IRUGO,
1000                         attr_select_right_show_tpkbd,
1001                         attr_select_right_store_tpkbd);
1002
1003 static struct device_attribute dev_attr_sensitivity_tpkbd =
1004         __ATTR(sensitivity, S_IWUSR | S_IRUGO,
1005                         attr_sensitivity_show_tpkbd,
1006                         attr_sensitivity_store_tpkbd);
1007
1008 static struct device_attribute dev_attr_press_speed_tpkbd =
1009         __ATTR(press_speed, S_IWUSR | S_IRUGO,
1010                         attr_press_speed_show_tpkbd,
1011                         attr_press_speed_store_tpkbd);
1012
1013 static struct attribute *lenovo_attributes_tpkbd[] = {
1014         &dev_attr_press_to_select_tpkbd.attr,
1015         &dev_attr_dragging_tpkbd.attr,
1016         &dev_attr_release_to_select_tpkbd.attr,
1017         &dev_attr_select_right_tpkbd.attr,
1018         &dev_attr_sensitivity_tpkbd.attr,
1019         &dev_attr_press_speed_tpkbd.attr,
1020         NULL
1021 };
1022
1023 static const struct attribute_group lenovo_attr_group_tpkbd = {
1024         .attrs = lenovo_attributes_tpkbd,
1025 };
1026
1027 static void lenovo_led_set_tpkbd(struct hid_device *hdev)
1028 {
1029         struct lenovo_drvdata *data_pointer = hid_get_drvdata(hdev);
1030         struct hid_report *report;
1031
1032         report = hdev->report_enum[HID_OUTPUT_REPORT].report_id_hash[3];
1033         report->field[0]->value[0] = (data_pointer->led_state >> 0) & 1;
1034         report->field[0]->value[1] = (data_pointer->led_state >> 1) & 1;
1035         hid_hw_request(hdev, report, HID_REQ_SET_REPORT);
1036 }
1037
1038 static int lenovo_led_brightness_set(struct led_classdev *led_cdev,
1039                         enum led_brightness value)
1040 {
1041         struct device *dev = led_cdev->dev->parent;
1042         struct hid_device *hdev = to_hid_device(dev);
1043         struct lenovo_drvdata *data_pointer = hid_get_drvdata(hdev);
1044         static const u8 tp10ubkbd_led[] = { TP10UBKBD_MUTE_LED, TP10UBKBD_MICMUTE_LED };
1045         int led_nr = 0;
1046         int ret = 0;
1047
1048         if (led_cdev == &data_pointer->led_micmute)
1049                 led_nr = 1;
1050
1051         if (value == LED_OFF)
1052                 data_pointer->led_state &= ~(1 << led_nr);
1053         else
1054                 data_pointer->led_state |= 1 << led_nr;
1055
1056         switch (hdev->product) {
1057         case USB_DEVICE_ID_LENOVO_TPKBD:
1058                 lenovo_led_set_tpkbd(hdev);
1059                 break;
1060         case USB_DEVICE_ID_LENOVO_TP10UBKBD:
1061         case USB_DEVICE_ID_LENOVO_X1_TAB:
1062         case USB_DEVICE_ID_LENOVO_X1_TAB3:
1063                 ret = lenovo_led_set_tp10ubkbd(hdev, tp10ubkbd_led[led_nr], value);
1064                 break;
1065         }
1066
1067         return ret;
1068 }
1069
1070 static int lenovo_register_leds(struct hid_device *hdev)
1071 {
1072         struct lenovo_drvdata *data = hid_get_drvdata(hdev);
1073         size_t name_sz = strlen(dev_name(&hdev->dev)) + 16;
1074         char *name_mute, *name_micm;
1075         int ret;
1076
1077         name_mute = devm_kzalloc(&hdev->dev, name_sz, GFP_KERNEL);
1078         name_micm = devm_kzalloc(&hdev->dev, name_sz, GFP_KERNEL);
1079         if (name_mute == NULL || name_micm == NULL) {
1080                 hid_err(hdev, "Could not allocate memory for led data\n");
1081                 return -ENOMEM;
1082         }
1083         snprintf(name_mute, name_sz, "%s:amber:mute", dev_name(&hdev->dev));
1084         snprintf(name_micm, name_sz, "%s:amber:micmute", dev_name(&hdev->dev));
1085
1086         data->led_mute.name = name_mute;
1087         data->led_mute.default_trigger = "audio-mute";
1088         data->led_mute.brightness_set_blocking = lenovo_led_brightness_set;
1089         data->led_mute.max_brightness = 1;
1090         data->led_mute.flags = LED_HW_PLUGGABLE;
1091         data->led_mute.dev = &hdev->dev;
1092         ret = led_classdev_register(&hdev->dev, &data->led_mute);
1093         if (ret < 0)
1094                 return ret;
1095
1096         data->led_micmute.name = name_micm;
1097         data->led_micmute.default_trigger = "audio-micmute";
1098         data->led_micmute.brightness_set_blocking = lenovo_led_brightness_set;
1099         data->led_micmute.max_brightness = 1;
1100         data->led_micmute.flags = LED_HW_PLUGGABLE;
1101         data->led_micmute.dev = &hdev->dev;
1102         ret = led_classdev_register(&hdev->dev, &data->led_micmute);
1103         if (ret < 0) {
1104                 led_classdev_unregister(&data->led_mute);
1105                 return ret;
1106         }
1107
1108         return 0;
1109 }
1110
1111 static int lenovo_probe_tpkbd(struct hid_device *hdev)
1112 {
1113         struct lenovo_drvdata *data_pointer;
1114         int i, ret;
1115
1116         /*
1117          * Only register extra settings against subdevice where input_mapping
1118          * set drvdata to 1, i.e. the trackpoint.
1119          */
1120         if (!hid_get_drvdata(hdev))
1121                 return 0;
1122
1123         hid_set_drvdata(hdev, NULL);
1124
1125         /* Validate required reports. */
1126         for (i = 0; i < 4; i++) {
1127                 if (!hid_validate_values(hdev, HID_FEATURE_REPORT, 4, i, 1))
1128                         return -ENODEV;
1129         }
1130         if (!hid_validate_values(hdev, HID_OUTPUT_REPORT, 3, 0, 2))
1131                 return -ENODEV;
1132
1133         ret = sysfs_create_group(&hdev->dev.kobj, &lenovo_attr_group_tpkbd);
1134         if (ret)
1135                 hid_warn(hdev, "Could not create sysfs group: %d\n", ret);
1136
1137         data_pointer = devm_kzalloc(&hdev->dev,
1138                                     sizeof(struct lenovo_drvdata),
1139                                     GFP_KERNEL);
1140         if (data_pointer == NULL) {
1141                 hid_err(hdev, "Could not allocate memory for driver data\n");
1142                 ret = -ENOMEM;
1143                 goto err;
1144         }
1145
1146         // set same default values as windows driver
1147         data_pointer->sensitivity = 0xa0;
1148         data_pointer->press_speed = 0x38;
1149
1150         hid_set_drvdata(hdev, data_pointer);
1151
1152         ret = lenovo_register_leds(hdev);
1153         if (ret)
1154                 goto err;
1155
1156         lenovo_features_set_tpkbd(hdev);
1157
1158         return 0;
1159 err:
1160         sysfs_remove_group(&hdev->dev.kobj, &lenovo_attr_group_tpkbd);
1161         return ret;
1162 }
1163
1164 static int lenovo_probe_cptkbd(struct hid_device *hdev)
1165 {
1166         int ret;
1167         struct lenovo_drvdata *cptkbd_data;
1168
1169         /* All the custom action happens on the USBMOUSE device for USB */
1170         if (((hdev->product == USB_DEVICE_ID_LENOVO_CUSBKBD) ||
1171             (hdev->product == USB_DEVICE_ID_LENOVO_TPIIUSBKBD)) &&
1172             hdev->type != HID_TYPE_USBMOUSE) {
1173                 hid_dbg(hdev, "Ignoring keyboard half of device\n");
1174                 return 0;
1175         }
1176
1177         cptkbd_data = devm_kzalloc(&hdev->dev,
1178                                         sizeof(*cptkbd_data),
1179                                         GFP_KERNEL);
1180         if (cptkbd_data == NULL) {
1181                 hid_err(hdev, "can't alloc keyboard descriptor\n");
1182                 return -ENOMEM;
1183         }
1184         hid_set_drvdata(hdev, cptkbd_data);
1185
1186         /* Set keyboard settings to known state */
1187         cptkbd_data->middlebutton_state = 0;
1188         cptkbd_data->fn_lock = true;
1189         cptkbd_data->sensitivity = 0x05;
1190         cptkbd_data->middleclick_workaround_cptkbd = true;
1191         lenovo_features_set_cptkbd(hdev);
1192
1193         ret = sysfs_create_group(&hdev->dev.kobj, &lenovo_attr_group_cptkbd);
1194         if (ret)
1195                 hid_warn(hdev, "Could not create sysfs group: %d\n", ret);
1196
1197         return 0;
1198 }
1199
1200 static struct attribute *lenovo_attributes_tp10ubkbd[] = {
1201         &dev_attr_fn_lock.attr,
1202         NULL
1203 };
1204
1205 static const struct attribute_group lenovo_attr_group_tp10ubkbd = {
1206         .attrs = lenovo_attributes_tp10ubkbd,
1207 };
1208
1209 static int lenovo_probe_tp10ubkbd(struct hid_device *hdev)
1210 {
1211         struct hid_report_enum *rep_enum;
1212         struct lenovo_drvdata *data;
1213         struct hid_report *rep;
1214         bool found;
1215         int ret;
1216
1217         /*
1218          * The LEDs and the Fn-lock functionality use output report 9,
1219          * with an application of 0xffa0001, add the LEDs on the interface
1220          * with this output report.
1221          */
1222         found = false;
1223         rep_enum = &hdev->report_enum[HID_OUTPUT_REPORT];
1224         list_for_each_entry(rep, &rep_enum->report_list, list) {
1225                 if (rep->application == 0xffa00001)
1226                         found = true;
1227         }
1228         if (!found)
1229                 return 0;
1230
1231         data = devm_kzalloc(&hdev->dev, sizeof(*data), GFP_KERNEL);
1232         if (!data)
1233                 return -ENOMEM;
1234
1235         mutex_init(&data->led_report_mutex);
1236         INIT_WORK(&data->fn_lock_sync_work, lenovo_tp10ubkbd_sync_fn_lock);
1237         data->hdev = hdev;
1238
1239         hid_set_drvdata(hdev, data);
1240
1241         /*
1242          * The Thinkpad 10 ultrabook USB kbd dock's Fn-lock defaults to on.
1243          * We cannot read the state, only set it, so we force it to on here
1244          * (which should be a no-op) to make sure that our state matches the
1245          * keyboard's FN-lock state. This is the same as what Windows does.
1246          */
1247         data->fn_lock = true;
1248         lenovo_led_set_tp10ubkbd(hdev, TP10UBKBD_FN_LOCK_LED, data->fn_lock);
1249
1250         ret = sysfs_create_group(&hdev->dev.kobj, &lenovo_attr_group_tp10ubkbd);
1251         if (ret)
1252                 return ret;
1253
1254         ret = lenovo_register_leds(hdev);
1255         if (ret)
1256                 goto err;
1257
1258         return 0;
1259 err:
1260         sysfs_remove_group(&hdev->dev.kobj, &lenovo_attr_group_tp10ubkbd);
1261         return ret;
1262 }
1263
1264 static int lenovo_probe(struct hid_device *hdev,
1265                 const struct hid_device_id *id)
1266 {
1267         int ret;
1268
1269         ret = hid_parse(hdev);
1270         if (ret) {
1271                 hid_err(hdev, "hid_parse failed\n");
1272                 goto err;
1273         }
1274
1275         ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
1276         if (ret) {
1277                 hid_err(hdev, "hid_hw_start failed\n");
1278                 goto err;
1279         }
1280
1281         switch (hdev->product) {
1282         case USB_DEVICE_ID_LENOVO_TPKBD:
1283                 ret = lenovo_probe_tpkbd(hdev);
1284                 break;
1285         case USB_DEVICE_ID_LENOVO_CUSBKBD:
1286         case USB_DEVICE_ID_LENOVO_CBTKBD:
1287         case USB_DEVICE_ID_LENOVO_TPIIUSBKBD:
1288         case USB_DEVICE_ID_LENOVO_TPIIBTKBD:
1289                 ret = lenovo_probe_cptkbd(hdev);
1290                 break;
1291         case USB_DEVICE_ID_LENOVO_TP10UBKBD:
1292         case USB_DEVICE_ID_LENOVO_X1_TAB:
1293         case USB_DEVICE_ID_LENOVO_X1_TAB3:
1294                 ret = lenovo_probe_tp10ubkbd(hdev);
1295                 break;
1296         default:
1297                 ret = 0;
1298                 break;
1299         }
1300         if (ret)
1301                 goto err_hid;
1302
1303         return 0;
1304 err_hid:
1305         hid_hw_stop(hdev);
1306 err:
1307         return ret;
1308 }
1309
1310 #ifdef CONFIG_PM
1311 static int lenovo_reset_resume(struct hid_device *hdev)
1312 {
1313         switch (hdev->product) {
1314         case USB_DEVICE_ID_LENOVO_CUSBKBD:
1315         case USB_DEVICE_ID_LENOVO_TPIIUSBKBD:
1316                 if (hdev->type == HID_TYPE_USBMOUSE)
1317                         lenovo_features_set_cptkbd(hdev);
1318
1319                 break;
1320         default:
1321                 break;
1322         }
1323
1324         return 0;
1325 }
1326 #endif
1327
1328 static void lenovo_remove_tpkbd(struct hid_device *hdev)
1329 {
1330         struct lenovo_drvdata *data_pointer = hid_get_drvdata(hdev);
1331
1332         /*
1333          * Only the trackpoint half of the keyboard has drvdata and stuff that
1334          * needs unregistering.
1335          */
1336         if (data_pointer == NULL)
1337                 return;
1338
1339         sysfs_remove_group(&hdev->dev.kobj,
1340                         &lenovo_attr_group_tpkbd);
1341
1342         led_classdev_unregister(&data_pointer->led_micmute);
1343         led_classdev_unregister(&data_pointer->led_mute);
1344 }
1345
1346 static void lenovo_remove_cptkbd(struct hid_device *hdev)
1347 {
1348         sysfs_remove_group(&hdev->dev.kobj,
1349                         &lenovo_attr_group_cptkbd);
1350 }
1351
1352 static void lenovo_remove_tp10ubkbd(struct hid_device *hdev)
1353 {
1354         struct lenovo_drvdata *data = hid_get_drvdata(hdev);
1355
1356         if (data == NULL)
1357                 return;
1358
1359         led_classdev_unregister(&data->led_micmute);
1360         led_classdev_unregister(&data->led_mute);
1361
1362         sysfs_remove_group(&hdev->dev.kobj, &lenovo_attr_group_tp10ubkbd);
1363         cancel_work_sync(&data->fn_lock_sync_work);
1364 }
1365
1366 static void lenovo_remove(struct hid_device *hdev)
1367 {
1368         switch (hdev->product) {
1369         case USB_DEVICE_ID_LENOVO_TPKBD:
1370                 lenovo_remove_tpkbd(hdev);
1371                 break;
1372         case USB_DEVICE_ID_LENOVO_CUSBKBD:
1373         case USB_DEVICE_ID_LENOVO_CBTKBD:
1374         case USB_DEVICE_ID_LENOVO_TPIIUSBKBD:
1375         case USB_DEVICE_ID_LENOVO_TPIIBTKBD:
1376                 lenovo_remove_cptkbd(hdev);
1377                 break;
1378         case USB_DEVICE_ID_LENOVO_TP10UBKBD:
1379         case USB_DEVICE_ID_LENOVO_X1_TAB:
1380         case USB_DEVICE_ID_LENOVO_X1_TAB3:
1381                 lenovo_remove_tp10ubkbd(hdev);
1382                 break;
1383         }
1384
1385         hid_hw_stop(hdev);
1386 }
1387
1388 static int lenovo_input_configured(struct hid_device *hdev,
1389                 struct hid_input *hi)
1390 {
1391         switch (hdev->product) {
1392                 case USB_DEVICE_ID_LENOVO_TPKBD:
1393                 case USB_DEVICE_ID_LENOVO_CUSBKBD:
1394                 case USB_DEVICE_ID_LENOVO_CBTKBD:
1395                 case USB_DEVICE_ID_LENOVO_TPIIUSBKBD:
1396                 case USB_DEVICE_ID_LENOVO_TPIIBTKBD:
1397                         if (test_bit(EV_REL, hi->input->evbit)) {
1398                                 /* set only for trackpoint device */
1399                                 __set_bit(INPUT_PROP_POINTER, hi->input->propbit);
1400                                 __set_bit(INPUT_PROP_POINTING_STICK,
1401                                                 hi->input->propbit);
1402                         }
1403                         break;
1404         }
1405
1406         return 0;
1407 }
1408
1409
1410 static const struct hid_device_id lenovo_devices[] = {
1411         { HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_TPKBD) },
1412         { HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_CUSBKBD) },
1413         { HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_TPIIUSBKBD) },
1414         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_CBTKBD) },
1415         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_TPIIBTKBD) },
1416         { HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_TPPRODOCK) },
1417         { HID_USB_DEVICE(USB_VENDOR_ID_IBM, USB_DEVICE_ID_IBM_SCROLLPOINT_III) },
1418         { HID_USB_DEVICE(USB_VENDOR_ID_IBM, USB_DEVICE_ID_IBM_SCROLLPOINT_PRO) },
1419         { HID_USB_DEVICE(USB_VENDOR_ID_IBM, USB_DEVICE_ID_IBM_SCROLLPOINT_OPTICAL) },
1420         { HID_USB_DEVICE(USB_VENDOR_ID_IBM, USB_DEVICE_ID_IBM_SCROLLPOINT_800DPI_OPTICAL) },
1421         { HID_USB_DEVICE(USB_VENDOR_ID_IBM, USB_DEVICE_ID_IBM_SCROLLPOINT_800DPI_OPTICAL_PRO) },
1422         { HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_SCROLLPOINT_OPTICAL) },
1423         { HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_TP10UBKBD) },
1424         /*
1425          * Note bind to the HID_GROUP_GENERIC group, so that we only bind to the keyboard
1426          * part, while letting hid-multitouch.c handle the touchpad and trackpoint.
1427          */
1428         { HID_DEVICE(BUS_USB, HID_GROUP_GENERIC,
1429                      USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_X1_TAB) },
1430         { HID_DEVICE(BUS_USB, HID_GROUP_GENERIC,
1431                      USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_X1_TAB3) },
1432         { }
1433 };
1434
1435 MODULE_DEVICE_TABLE(hid, lenovo_devices);
1436
1437 static struct hid_driver lenovo_driver = {
1438         .name = "lenovo",
1439         .id_table = lenovo_devices,
1440         .input_configured = lenovo_input_configured,
1441         .input_mapping = lenovo_input_mapping,
1442         .probe = lenovo_probe,
1443         .remove = lenovo_remove,
1444         .raw_event = lenovo_raw_event,
1445         .event = lenovo_event,
1446         .report_fixup = lenovo_report_fixup,
1447 #ifdef CONFIG_PM
1448         .reset_resume = lenovo_reset_resume,
1449 #endif
1450 };
1451 module_hid_driver(lenovo_driver);
1452
1453 MODULE_DESCRIPTION("HID driver for IBM/Lenovo");
1454 MODULE_LICENSE("GPL");