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