drivers/hid/hid-apple.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  *  USB HID quirks support for Linux
   4  *
   5  *  Copyright (c) 1999 Andreas Gal
   6  *  Copyright (c) 2000-2005 Vojtech Pavlik <[email protected]>
   7  *  Copyright (c) 2005 Michael Haboustak <[email protected]> for Concept2, Inc
   8  *  Copyright (c) 2006-2007 Jiri Kosina
   9  *  Copyright (c) 2008 Jiri Slaby <[email protected]>
  10  */
  11
  12 /*
  13  */
  14
  15 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
  16
  17 #include <linux/device.h>
  18 #include <linux/hid.h>
  19 #include <linux/jiffies.h>
  20 #include <linux/module.h>
  21 #include <linux/slab.h>
  22 #include <linux/timer.h>
  23
  24 #include "hid-ids.h"
  25
  26 #define APPLE_RDESC_JIS         BIT(0)
  27 #define APPLE_IGNORE_MOUSE      BIT(1)
  28 #define APPLE_HAS_FN            BIT(2)
  29 /* BIT(3) reserved, was: APPLE_HIDDEV */
  30 #define APPLE_ISO_TILDE_QUIRK   BIT(4)
  31 #define APPLE_MIGHTYMOUSE       BIT(5)
  32 #define APPLE_INVERT_HWHEEL     BIT(6)
  33 /* BIT(7) reserved, was: APPLE_IGNORE_HIDINPUT */
  34 #define APPLE_NUMLOCK_EMULATION BIT(8)
  35 #define APPLE_RDESC_BATTERY     BIT(9)
  36
  37 #define APPLE_FLAG_FKEY         0x01
  38
  39 #define HID_COUNTRY_INTERNATIONAL_ISO   13
  40 #define APPLE_BATTERY_TIMEOUT_MS        60000
  41
  42 static unsigned int fnmode = 1;
  43 module_param(fnmode, uint, 0644);
  44 MODULE_PARM_DESC(fnmode, "Mode of fn key on Apple keyboards (0 = disabled, "
  45                 "[1] = fkeyslast, 2 = fkeysfirst)");
  46
  47 static int iso_layout = -1;
  48 module_param(iso_layout, int, 0644);
  49 MODULE_PARM_DESC(iso_layout, "Swap the backtick/tilde and greater-than/less-than keys. "
  50                 "([-1] = auto, 0 = disabled, 1 = enabled)");
  51
  52 static unsigned int swap_opt_cmd;
  53 module_param(swap_opt_cmd, uint, 0644);
  54 MODULE_PARM_DESC(swap_opt_cmd, "Swap the Option (\"Alt\") and Command (\"Flag\") keys. "
  55                 "(For people who want to keep Windows PC keyboard muscle memory. "
  56                 "[0] = as-is, Mac layout. 1 = swapped, Windows layout.)");
  57
  58 static unsigned int swap_fn_leftctrl;
  59 module_param(swap_fn_leftctrl, uint, 0644);
  60 MODULE_PARM_DESC(swap_fn_leftctrl, "Swap the Fn and left Control keys. "
  61                 "(For people who want to keep PC keyboard muscle memory. "
  62                 "[0] = as-is, Mac layout, 1 = swapped, PC layout)");
  63
  64 struct apple_sc {
  65         struct hid_device *hdev;
  66         unsigned long quirks;
  67         unsigned int fn_on;
  68         unsigned int fn_found;
  69         DECLARE_BITMAP(pressed_numlock, KEY_CNT);
  70         struct timer_list battery_timer;
  71 };
  72
  73 struct apple_key_translation {
  74         u16 from;
  75         u16 to;
  76         u8 flags;
  77 };
  78
  79 static const struct apple_key_translation apple2021_fn_keys[] = {
  80         { KEY_BACKSPACE, KEY_DELETE },
  81         { KEY_ENTER,    KEY_INSERT },
  82         { KEY_F1,       KEY_BRIGHTNESSDOWN, APPLE_FLAG_FKEY },
  83         { KEY_F2,       KEY_BRIGHTNESSUP,   APPLE_FLAG_FKEY },
  84         { KEY_F3,       KEY_SCALE,          APPLE_FLAG_FKEY },
  85         { KEY_F4,       KEY_SEARCH,         APPLE_FLAG_FKEY },
  86         { KEY_F5,       KEY_MICMUTE,        APPLE_FLAG_FKEY },
  87         { KEY_F6,       KEY_SLEEP,          APPLE_FLAG_FKEY },
  88         { KEY_F7,       KEY_PREVIOUSSONG,   APPLE_FLAG_FKEY },
  89         { KEY_F8,       KEY_PLAYPAUSE,      APPLE_FLAG_FKEY },
  90         { KEY_F9,       KEY_NEXTSONG,       APPLE_FLAG_FKEY },
  91         { KEY_F10,      KEY_MUTE,           APPLE_FLAG_FKEY },
  92         { KEY_F11,      KEY_VOLUMEDOWN,     APPLE_FLAG_FKEY },
  93         { KEY_F12,      KEY_VOLUMEUP,       APPLE_FLAG_FKEY },
  94         { KEY_UP,       KEY_PAGEUP },
  95         { KEY_DOWN,     KEY_PAGEDOWN },
  96         { KEY_LEFT,     KEY_HOME },
  97         { KEY_RIGHT,    KEY_END },
  98         { }
  99 };
 100
 101 static const struct apple_key_translation macbookair_fn_keys[] = {
 102         { KEY_BACKSPACE, KEY_DELETE },
 103         { KEY_ENTER,    KEY_INSERT },
 104         { KEY_F1,       KEY_BRIGHTNESSDOWN, APPLE_FLAG_FKEY },
 105         { KEY_F2,       KEY_BRIGHTNESSUP,   APPLE_FLAG_FKEY },
 106         { KEY_F3,       KEY_SCALE,          APPLE_FLAG_FKEY },
 107         { KEY_F4,       KEY_DASHBOARD,      APPLE_FLAG_FKEY },
 108         { KEY_F6,       KEY_PREVIOUSSONG,   APPLE_FLAG_FKEY },
 109         { KEY_F7,       KEY_PLAYPAUSE,      APPLE_FLAG_FKEY },
 110         { KEY_F8,       KEY_NEXTSONG,       APPLE_FLAG_FKEY },
 111         { KEY_F9,       KEY_MUTE,           APPLE_FLAG_FKEY },
 112         { KEY_F10,      KEY_VOLUMEDOWN,     APPLE_FLAG_FKEY },
 113         { KEY_F11,      KEY_VOLUMEUP,       APPLE_FLAG_FKEY },
 114         { KEY_F12,      KEY_EJECTCD,        APPLE_FLAG_FKEY },
 115         { KEY_UP,       KEY_PAGEUP },
 116         { KEY_DOWN,     KEY_PAGEDOWN },
 117         { KEY_LEFT,     KEY_HOME },
 118         { KEY_RIGHT,    KEY_END },
 119         { }
 120 };
 121
 122 static const struct apple_key_translation apple_fn_keys[] = {
 123         { KEY_BACKSPACE, KEY_DELETE },
 124         { KEY_ENTER,    KEY_INSERT },
 125         { KEY_F1,       KEY_BRIGHTNESSDOWN, APPLE_FLAG_FKEY },
 126         { KEY_F2,       KEY_BRIGHTNESSUP,   APPLE_FLAG_FKEY },
 127         { KEY_F3,       KEY_SCALE,          APPLE_FLAG_FKEY },
 128         { KEY_F4,       KEY_DASHBOARD,      APPLE_FLAG_FKEY },
 129         { KEY_F5,       KEY_KBDILLUMDOWN,   APPLE_FLAG_FKEY },
 130         { KEY_F6,       KEY_KBDILLUMUP,     APPLE_FLAG_FKEY },
 131         { KEY_F7,       KEY_PREVIOUSSONG,   APPLE_FLAG_FKEY },
 132         { KEY_F8,       KEY_PLAYPAUSE,      APPLE_FLAG_FKEY },
 133         { KEY_F9,       KEY_NEXTSONG,       APPLE_FLAG_FKEY },
 134         { KEY_F10,      KEY_MUTE,           APPLE_FLAG_FKEY },
 135         { KEY_F11,      KEY_VOLUMEDOWN,     APPLE_FLAG_FKEY },
 136         { KEY_F12,      KEY_VOLUMEUP,       APPLE_FLAG_FKEY },
 137         { KEY_UP,       KEY_PAGEUP },
 138         { KEY_DOWN,     KEY_PAGEDOWN },
 139         { KEY_LEFT,     KEY_HOME },
 140         { KEY_RIGHT,    KEY_END },
 141         { }
 142 };
 143
 144 static const struct apple_key_translation powerbook_fn_keys[] = {
 145         { KEY_BACKSPACE, KEY_DELETE },
 146         { KEY_F1,       KEY_BRIGHTNESSDOWN,     APPLE_FLAG_FKEY },
 147         { KEY_F2,       KEY_BRIGHTNESSUP,       APPLE_FLAG_FKEY },
 148         { KEY_F3,       KEY_MUTE,               APPLE_FLAG_FKEY },
 149         { KEY_F4,       KEY_VOLUMEDOWN,         APPLE_FLAG_FKEY },
 150         { KEY_F5,       KEY_VOLUMEUP,           APPLE_FLAG_FKEY },
 151         { KEY_F6,       KEY_NUMLOCK,            APPLE_FLAG_FKEY },
 152         { KEY_F7,       KEY_SWITCHVIDEOMODE,    APPLE_FLAG_FKEY },
 153         { KEY_F8,       KEY_KBDILLUMTOGGLE,     APPLE_FLAG_FKEY },
 154         { KEY_F9,       KEY_KBDILLUMDOWN,       APPLE_FLAG_FKEY },
 155         { KEY_F10,      KEY_KBDILLUMUP,         APPLE_FLAG_FKEY },
 156         { KEY_UP,       KEY_PAGEUP },
 157         { KEY_DOWN,     KEY_PAGEDOWN },
 158         { KEY_LEFT,     KEY_HOME },
 159         { KEY_RIGHT,    KEY_END },
 160         { }
 161 };
 162
 163 static const struct apple_key_translation powerbook_numlock_keys[] = {
 164         { KEY_J,        KEY_KP1 },
 165         { KEY_K,        KEY_KP2 },
 166         { KEY_L,        KEY_KP3 },
 167         { KEY_U,        KEY_KP4 },
 168         { KEY_I,        KEY_KP5 },
 169         { KEY_O,        KEY_KP6 },
 170         { KEY_7,        KEY_KP7 },
 171         { KEY_8,        KEY_KP8 },
 172         { KEY_9,        KEY_KP9 },
 173         { KEY_M,        KEY_KP0 },
 174         { KEY_DOT,      KEY_KPDOT },
 175         { KEY_SLASH,    KEY_KPPLUS },
 176         { KEY_SEMICOLON, KEY_KPMINUS },
 177         { KEY_P,        KEY_KPASTERISK },
 178         { KEY_MINUS,    KEY_KPEQUAL },
 179         { KEY_0,        KEY_KPSLASH },
 180         { KEY_F6,       KEY_NUMLOCK },
 181         { KEY_KPENTER,  KEY_KPENTER },
 182         { KEY_BACKSPACE, KEY_BACKSPACE },
 183         { }
 184 };
 185
 186 static const struct apple_key_translation apple_iso_keyboard[] = {
 187         { KEY_GRAVE,    KEY_102ND },
 188         { KEY_102ND,    KEY_GRAVE },
 189         { }
 190 };
 191
 192 static const struct apple_key_translation swapped_option_cmd_keys[] = {
 193         { KEY_LEFTALT,  KEY_LEFTMETA },
 194         { KEY_LEFTMETA, KEY_LEFTALT },
 195         { KEY_RIGHTALT, KEY_RIGHTMETA },
 196         { KEY_RIGHTMETA,KEY_RIGHTALT },
 197         { }
 198 };
 199
 200 static const struct apple_key_translation swapped_fn_leftctrl_keys[] = {
 201         { KEY_FN, KEY_LEFTCTRL },
 202         { }
 203 };
 204
 205 static const struct apple_key_translation *apple_find_translation(
 206                 const struct apple_key_translation *table, u16 from)
 207 {
 208         const struct apple_key_translation *trans;
 209
 210         /* Look for the translation */
 211         for (trans = table; trans->from; trans++)
 212                 if (trans->from == from)
 213                         return trans;
 214
 215         return NULL;
 216 }
 217
 218 static void input_event_with_scancode(struct input_dev *input,
 219                 __u8 type, __u16 code, unsigned int hid, __s32 value)
 220 {
 221         if (type == EV_KEY &&
 222             (!test_bit(code, input->key)) == value)
 223                 input_event(input, EV_MSC, MSC_SCAN, hid);
 224         input_event(input, type, code, value);
 225 }
 226
 227 static int hidinput_apple_event(struct hid_device *hid, struct input_dev *input,
 228                 struct hid_usage *usage, __s32 value)
 229 {
 230         struct apple_sc *asc = hid_get_drvdata(hid);
 231         const struct apple_key_translation *trans, *table;
 232         bool do_translate;
 233         u16 code = 0;
 234
 235         u16 fn_keycode = (swap_fn_leftctrl) ? (KEY_LEFTCTRL) : (KEY_FN);
 236
 237         if (usage->code == fn_keycode) {
 238                 asc->fn_on = !!value;
 239                 input_event_with_scancode(input, usage->type, KEY_FN,
 240                                 usage->hid, value);
 241                 return 1;
 242         }
 243
 244         if (fnmode) {
 245                 if (hid->product == USB_DEVICE_ID_APPLE_MAGIC_KEYBOARD_2021 ||
 246                     hid->product == USB_DEVICE_ID_APPLE_MAGIC_KEYBOARD_FINGERPRINT_2021 ||
 247                     hid->product == USB_DEVICE_ID_APPLE_MAGIC_KEYBOARD_NUMPAD_2021)
 248                         table = apple2021_fn_keys;
 249                 else if (hid->product >= USB_DEVICE_ID_APPLE_WELLSPRING4_ANSI &&
 250                                 hid->product <= USB_DEVICE_ID_APPLE_WELLSPRING4A_JIS)
 251                         table = macbookair_fn_keys;
 252                 else if (hid->product < 0x21d || hid->product >= 0x300)
 253                         table = powerbook_fn_keys;
 254                 else
 255                         table = apple_fn_keys;
 256
 257                 trans = apple_find_translation (table, usage->code);
 258
 259                 if (trans) {
 260                         if (test_bit(trans->from, input->key))
 261                                 code = trans->from;
 262                         else if (test_bit(trans->to, input->key))
 263                                 code = trans->to;
 264
 265                         if (!code) {
 266                                 if (trans->flags & APPLE_FLAG_FKEY) {
 267                                         switch (fnmode) {
 268                                         case 1:
 269                                                 do_translate = !asc->fn_on;
 270                                                 break;
 271                                         case 2:
 272                                                 do_translate = asc->fn_on;
 273                                                 break;
 274                                         default:
 275                                                 /* should never happen */
 276                                                 do_translate = false;
 277                                         }
 278                                 } else {
 279                                         do_translate = asc->fn_on;
 280                                 }
 281
 282                                 code = do_translate ? trans->to : trans->from;
 283                         }
 284
 285                         input_event_with_scancode(input, usage->type, code,
 286                                         usage->hid, value);
 287                         return 1;
 288                 }
 289
 290                 if (asc->quirks & APPLE_NUMLOCK_EMULATION &&
 291                                 (test_bit(usage->code, asc->pressed_numlock) ||
 292                                 test_bit(LED_NUML, input->led))) {
 293                         trans = apple_find_translation(powerbook_numlock_keys,
 294                                         usage->code);
 295
 296                         if (trans) {
 297                                 if (value)
 298                                         set_bit(usage->code,
 299                                                         asc->pressed_numlock);
 300                                 else
 301                                         clear_bit(usage->code,
 302                                                         asc->pressed_numlock);
 303
 304                                 input_event_with_scancode(input, usage->type,
 305                                                 trans->to, usage->hid, value);
 306                         }
 307
 308                         return 1;
 309                 }
 310         }
 311
 312         if (iso_layout > 0 || (iso_layout < 0 && (asc->quirks & APPLE_ISO_TILDE_QUIRK) &&
 313                         hid->country == HID_COUNTRY_INTERNATIONAL_ISO)) {
 314                 trans = apple_find_translation(apple_iso_keyboard, usage->code);
 315                 if (trans) {
 316                         input_event_with_scancode(input, usage->type,
 317                                         trans->to, usage->hid, value);
 318                         return 1;
 319                 }
 320         }
 321
 322         if (swap_opt_cmd) {
 323                 trans = apple_find_translation(swapped_option_cmd_keys, usage->code);
 324                 if (trans) {
 325                         input_event_with_scancode(input, usage->type,
 326                                         trans->to, usage->hid, value);
 327                         return 1;
 328                 }
 329         }
 330
 331         if (swap_fn_leftctrl) {
 332                 trans = apple_find_translation(swapped_fn_leftctrl_keys, usage->code);
 333                 if (trans) {
 334                         input_event_with_scancode(input, usage->type,
 335                                         trans->to, usage->hid, value);
 336                         return 1;
 337                 }
 338         }
 339
 340         return 0;
 341 }
 342
 343 static int apple_event(struct hid_device *hdev, struct hid_field *field,
 344                 struct hid_usage *usage, __s32 value)
 345 {
 346         struct apple_sc *asc = hid_get_drvdata(hdev);
 347
 348         if (!(hdev->claimed & HID_CLAIMED_INPUT) || !field->hidinput ||
 349                         !usage->type)
 350                 return 0;
 351
 352         if ((asc->quirks & APPLE_INVERT_HWHEEL) &&
 353                         usage->code == REL_HWHEEL) {
 354                 input_event_with_scancode(field->hidinput->input, usage->type,
 355                                 usage->code, usage->hid, -value);
 356                 return 1;
 357         }
 358
 359         if ((asc->quirks & APPLE_HAS_FN) &&
 360                         hidinput_apple_event(hdev, field->hidinput->input,
 361                                 usage, value))
 362                 return 1;
 363
 364
 365         return 0;
 366 }
 367
 368 static int apple_fetch_battery(struct hid_device *hdev)
 369 {
 370 #ifdef CONFIG_HID_BATTERY_STRENGTH
 371         struct apple_sc *asc = hid_get_drvdata(hdev);
 372         struct hid_report_enum *report_enum;
 373         struct hid_report *report;
 374
 375         if (!(asc->quirks & APPLE_RDESC_BATTERY) || !hdev->battery)
 376                 return -1;
 377
 378         report_enum = &hdev->report_enum[hdev->battery_report_type];
 379         report = report_enum->report_id_hash[hdev->battery_report_id];
 380
 381         if (!report || report->maxfield < 1)
 382                 return -1;
 383
 384         if (hdev->battery_capacity == hdev->battery_max)
 385                 return -1;
 386
 387         hid_hw_request(hdev, report, HID_REQ_GET_REPORT);
 388         return 0;
 389 #else
 390         return -1;
 391 #endif
 392 }
 393
 394 static void apple_battery_timer_tick(struct timer_list *t)
 395 {
 396         struct apple_sc *asc = from_timer(asc, t, battery_timer);
 397         struct hid_device *hdev = asc->hdev;
 398
 399         if (apple_fetch_battery(hdev) == 0) {
 400                 mod_timer(&asc->battery_timer,
 401                           jiffies + msecs_to_jiffies(APPLE_BATTERY_TIMEOUT_MS));
 402         }
 403 }
 404
 405 /*
 406  * MacBook JIS keyboard has wrong logical maximum
 407  * Magic Keyboard JIS has wrong logical maximum
 408  */
 409 static __u8 *apple_report_fixup(struct hid_device *hdev, __u8 *rdesc,
 410                 unsigned int *rsize)
 411 {
 412         struct apple_sc *asc = hid_get_drvdata(hdev);
 413
 414         if(*rsize >=71 && rdesc[70] == 0x65 && rdesc[64] == 0x65) {
 415                 hid_info(hdev,
 416                          "fixing up Magic Keyboard JIS report descriptor\n");
 417                 rdesc[64] = rdesc[70] = 0xe7;
 418         }
 419
 420         if ((asc->quirks & APPLE_RDESC_JIS) && *rsize >= 60 &&
 421                         rdesc[53] == 0x65 && rdesc[59] == 0x65) {
 422                 hid_info(hdev,
 423                          "fixing up MacBook JIS keyboard report descriptor\n");
 424                 rdesc[53] = rdesc[59] = 0xe7;
 425         }
 426
 427         /*
 428          * Change the usage from:
 429          *   0x06, 0x00, 0xff, // Usage Page (Vendor Defined Page 1)  0
 430          *   0x09, 0x0b,       // Usage (Vendor Usage 0x0b)           3
 431          * To:
 432          *   0x05, 0x01,       // Usage Page (Generic Desktop)        0
 433          *   0x09, 0x06,       // Usage (Keyboard)                    2
 434          */
 435         if ((asc->quirks & APPLE_RDESC_BATTERY) && *rsize == 83 &&
 436             rdesc[46] == 0x84 && rdesc[58] == 0x85) {
 437                 hid_info(hdev,
 438                          "fixing up Magic Keyboard battery report descriptor\n");
 439                 *rsize = *rsize - 1;
 440                 rdesc = kmemdup(rdesc + 1, *rsize, GFP_KERNEL);
 441                 if (!rdesc)
 442                         return NULL;
 443
 444                 rdesc[0] = 0x05;
 445                 rdesc[1] = 0x01;
 446                 rdesc[2] = 0x09;
 447                 rdesc[3] = 0x06;
 448         }
 449
 450         return rdesc;
 451 }
 452
 453 static void apple_setup_input(struct input_dev *input)
 454 {
 455         const struct apple_key_translation *trans;
 456
 457         set_bit(KEY_NUMLOCK, input->keybit);
 458
 459         /* Enable all needed keys */
 460         for (trans = apple_fn_keys; trans->from; trans++)
 461                 set_bit(trans->to, input->keybit);
 462
 463         for (trans = powerbook_fn_keys; trans->from; trans++)
 464                 set_bit(trans->to, input->keybit);
 465
 466         for (trans = powerbook_numlock_keys; trans->from; trans++)
 467                 set_bit(trans->to, input->keybit);
 468
 469         for (trans = apple_iso_keyboard; trans->from; trans++)
 470                 set_bit(trans->to, input->keybit);
 471
 472         for (trans = apple2021_fn_keys; trans->from; trans++)
 473                 set_bit(trans->to, input->keybit);
 474
 475         if (swap_fn_leftctrl) {
 476                 for (trans = swapped_fn_leftctrl_keys; trans->from; trans++)
 477                         set_bit(trans->to, input->keybit);
 478         }
 479 }
 480
 481 static int apple_input_mapping(struct hid_device *hdev, struct hid_input *hi,
 482                 struct hid_field *field, struct hid_usage *usage,
 483                 unsigned long **bit, int *max)
 484 {
 485         struct apple_sc *asc = hid_get_drvdata(hdev);
 486
 487         if (usage->hid == (HID_UP_CUSTOM | 0x0003) ||
 488                         usage->hid == (HID_UP_MSVENDOR | 0x0003) ||
 489                         usage->hid == (HID_UP_HPVENDOR2 | 0x0003)) {
 490                 /* The fn key on Apple USB keyboards */
 491                 set_bit(EV_REP, hi->input->evbit);
 492                 hid_map_usage_clear(hi, usage, bit, max, EV_KEY, KEY_FN);
 493                 asc->fn_found = true;
 494                 apple_setup_input(hi->input);
 495                 return 1;
 496         }
 497
 498         /* we want the hid layer to go through standard path (set and ignore) */
 499         return 0;
 500 }
 501
 502 static int apple_input_mapped(struct hid_device *hdev, struct hid_input *hi,
 503                 struct hid_field *field, struct hid_usage *usage,
 504                 unsigned long **bit, int *max)
 505 {
 506         struct apple_sc *asc = hid_get_drvdata(hdev);
 507
 508         if (asc->quirks & APPLE_MIGHTYMOUSE) {
 509                 if (usage->hid == HID_GD_Z)
 510                         hid_map_usage(hi, usage, bit, max, EV_REL, REL_HWHEEL);
 511                 else if (usage->code == BTN_1)
 512                         hid_map_usage(hi, usage, bit, max, EV_KEY, BTN_2);
 513                 else if (usage->code == BTN_2)
 514                         hid_map_usage(hi, usage, bit, max, EV_KEY, BTN_1);
 515         }
 516
 517         return 0;
 518 }
 519
 520 static int apple_input_configured(struct hid_device *hdev,
 521                 struct hid_input *hidinput)
 522 {
 523         struct apple_sc *asc = hid_get_drvdata(hdev);
 524
 525         if ((asc->quirks & APPLE_HAS_FN) && !asc->fn_found) {
 526                 hid_info(hdev, "Fn key not found (Apple Wireless Keyboard clone?), disabling Fn key handling\n");
 527                 asc->quirks &= ~APPLE_HAS_FN;
 528         }
 529
 530         return 0;
 531 }
 532
 533 static int apple_probe(struct hid_device *hdev,
 534                 const struct hid_device_id *id)
 535 {
 536         unsigned long quirks = id->driver_data;
 537         struct apple_sc *asc;
 538         int ret;
 539
 540         asc = devm_kzalloc(&hdev->dev, sizeof(*asc), GFP_KERNEL);
 541         if (asc == NULL) {
 542                 hid_err(hdev, "can't alloc apple descriptor\n");
 543                 return -ENOMEM;
 544         }
 545
 546         asc->hdev = hdev;
 547         asc->quirks = quirks;
 548
 549         hid_set_drvdata(hdev, asc);
 550
 551         ret = hid_parse(hdev);
 552         if (ret) {
 553                 hid_err(hdev, "parse failed\n");
 554                 return ret;
 555         }
 556
 557         ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
 558         if (ret) {
 559                 hid_err(hdev, "hw start failed\n");
 560                 return ret;
 561         }
 562
 563         timer_setup(&asc->battery_timer, apple_battery_timer_tick, 0);
 564         mod_timer(&asc->battery_timer,
 565                   jiffies + msecs_to_jiffies(APPLE_BATTERY_TIMEOUT_MS));
 566         apple_fetch_battery(hdev);
 567
 568         return 0;
 569 }
 570
 571 static void apple_remove(struct hid_device *hdev)
 572 {
 573         struct apple_sc *asc = hid_get_drvdata(hdev);
 574
 575         del_timer_sync(&asc->battery_timer);
 576
 577         hid_hw_stop(hdev);
 578 }
 579
 580 static const struct hid_device_id apple_devices[] = {
 581         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MIGHTYMOUSE),
 582                 .driver_data = APPLE_MIGHTYMOUSE | APPLE_INVERT_HWHEEL },
 583
 584         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ANSI),
 585                 .driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN },
 586         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ISO),
 587                 .driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN },
 588         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ANSI),
 589                 .driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN },
 590         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ISO),
 591                 .driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN },
 592         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_JIS),
 593                 .driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN },
 594         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ANSI),
 595                 .driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN },
 596         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ISO),
 597                 .driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN },
 598         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_JIS),
 599                 .driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN |
 600                         APPLE_RDESC_JIS },
 601         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ANSI),
 602                 .driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN },
 603         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ISO),
 604                 .driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN },
 605         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_JIS),
 606                 .driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN |
 607                         APPLE_RDESC_JIS },
 608         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_ANSI),
 609                 .driver_data = APPLE_HAS_FN },
 610         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_ISO),
 611                 .driver_data = APPLE_HAS_FN },
 612         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_JIS),
 613                 .driver_data = APPLE_HAS_FN },
 614         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_ANSI),
 615                 .driver_data = APPLE_HAS_FN },
 616         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_ISO),
 617                 .driver_data = APPLE_HAS_FN },
 618         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_JIS),
 619                 .driver_data = APPLE_HAS_FN },
 620         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ANSI),
 621                 .driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN },
 622         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ISO),
 623                 .driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN },
 624         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_JIS),
 625                 .driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN |
 626                         APPLE_RDESC_JIS },
 627         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_REVB_ANSI),
 628                 .driver_data = APPLE_HAS_FN },
 629         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_REVB_ANSI),
 630                 .driver_data = APPLE_HAS_FN },
 631         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_REVB_ISO),
 632                 .driver_data = APPLE_HAS_FN },
 633         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_REVB_ISO),
 634                 .driver_data = APPLE_HAS_FN },
 635         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_REVB_JIS),
 636                 .driver_data = APPLE_HAS_FN },
 637         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_ANSI),
 638                 .driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN },
 639         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_ISO),
 640                 .driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN |
 641                         APPLE_ISO_TILDE_QUIRK },
 642         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ISO),
 643                 .driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN |
 644                         APPLE_ISO_TILDE_QUIRK },
 645         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE,
 646                                 USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ANSI),
 647                 .driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN },
 648         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE,
 649                                 USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_JIS),
 650                 .driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN },
 651         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_JIS),
 652                 .driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN },
 653         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGIC_KEYBOARD_2015),
 654                 .driver_data = APPLE_HAS_FN | APPLE_ISO_TILDE_QUIRK | APPLE_RDESC_BATTERY },
 655         { HID_BLUETOOTH_DEVICE(BT_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGIC_KEYBOARD_2015),
 656                 .driver_data = APPLE_HAS_FN | APPLE_ISO_TILDE_QUIRK },
 657         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGIC_KEYBOARD_NUMPAD_2015),
 658                 .driver_data = APPLE_HAS_FN | APPLE_ISO_TILDE_QUIRK | APPLE_RDESC_BATTERY },
 659         { HID_BLUETOOTH_DEVICE(BT_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGIC_KEYBOARD_NUMPAD_2015),
 660                 .driver_data = APPLE_HAS_FN | APPLE_ISO_TILDE_QUIRK },
 661         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ANSI),
 662                 .driver_data = APPLE_HAS_FN },
 663         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ISO),
 664                 .driver_data = APPLE_HAS_FN },
 665         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_JIS),
 666                 .driver_data = APPLE_HAS_FN | APPLE_RDESC_JIS },
 667         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ANSI),
 668                 .driver_data = APPLE_HAS_FN },
 669         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ISO),
 670                 .driver_data = APPLE_HAS_FN },
 671         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_JIS),
 672                 .driver_data = APPLE_HAS_FN | APPLE_RDESC_JIS },
 673         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ANSI),
 674                 .driver_data = APPLE_HAS_FN },
 675         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ISO),
 676                 .driver_data = APPLE_HAS_FN },
 677         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_JIS),
 678                 .driver_data = APPLE_HAS_FN | APPLE_RDESC_JIS },
 679         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ANSI),
 680                 .driver_data = APPLE_HAS_FN },
 681         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ISO),
 682                 .driver_data = APPLE_HAS_FN },
 683         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_JIS),
 684                 .driver_data = APPLE_HAS_FN | APPLE_RDESC_JIS },
 685         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ANSI),
 686                 .driver_data = APPLE_HAS_FN },
 687         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ISO),
 688                 .driver_data = APPLE_HAS_FN },
 689         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_JIS),
 690                 .driver_data = APPLE_HAS_FN | APPLE_RDESC_JIS },
 691         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ANSI),
 692                 .driver_data = APPLE_HAS_FN },
 693         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ISO),
 694                 .driver_data = APPLE_HAS_FN },
 695         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_JIS),
 696                 .driver_data = APPLE_HAS_FN | APPLE_RDESC_JIS },
 697         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_ANSI),
 698                 .driver_data = APPLE_HAS_FN },
 699         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_ISO),
 700                 .driver_data = APPLE_HAS_FN },
 701         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_JIS),
 702                 .driver_data = APPLE_HAS_FN | APPLE_RDESC_JIS },
 703         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_ANSI),
 704                 .driver_data = APPLE_HAS_FN },
 705         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_ISO),
 706                 .driver_data = APPLE_HAS_FN },
 707         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_JIS),
 708                 .driver_data = APPLE_HAS_FN | APPLE_RDESC_JIS },
 709         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_ANSI),
 710                 .driver_data = APPLE_HAS_FN },
 711         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_ISO),
 712                 .driver_data = APPLE_HAS_FN },
 713         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_JIS),
 714                 .driver_data = APPLE_HAS_FN | APPLE_RDESC_JIS },
 715         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_ANSI),
 716                 .driver_data = APPLE_HAS_FN },
 717         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_ISO),
 718                 .driver_data = APPLE_HAS_FN },
 719         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_JIS),
 720                 .driver_data = APPLE_HAS_FN | APPLE_RDESC_JIS },
 721         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_ANSI),
 722                 .driver_data = APPLE_HAS_FN },
 723         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_ISO),
 724                 .driver_data = APPLE_HAS_FN },
 725         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_JIS),
 726                 .driver_data = APPLE_HAS_FN | APPLE_RDESC_JIS },
 727         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING8_ANSI),
 728                 .driver_data = APPLE_HAS_FN },
 729         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING8_ISO),
 730                 .driver_data = APPLE_HAS_FN },
 731         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING8_JIS),
 732                 .driver_data = APPLE_HAS_FN | APPLE_RDESC_JIS },
 733         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING9_ANSI),
 734                 .driver_data = APPLE_HAS_FN },
 735         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING9_ISO),
 736                 .driver_data = APPLE_HAS_FN },
 737         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING9_JIS),
 738                 .driver_data = APPLE_HAS_FN | APPLE_RDESC_JIS },
 739         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ANSI),
 740                 .driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN },
 741         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ISO),
 742                 .driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN |
 743                         APPLE_ISO_TILDE_QUIRK },
 744         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_JIS),
 745                 .driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN },
 746         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_TP_ONLY),
 747                 .driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN },
 748         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY),
 749                 .driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN },
 750         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGIC_KEYBOARD_2021),
 751                 .driver_data = APPLE_HAS_FN | APPLE_ISO_TILDE_QUIRK },
 752         { HID_BLUETOOTH_DEVICE(BT_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGIC_KEYBOARD_2021),
 753                 .driver_data = APPLE_HAS_FN | APPLE_ISO_TILDE_QUIRK },
 754         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGIC_KEYBOARD_FINGERPRINT_2021),
 755                 .driver_data = APPLE_HAS_FN | APPLE_ISO_TILDE_QUIRK },
 756         { HID_BLUETOOTH_DEVICE(BT_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGIC_KEYBOARD_FINGERPRINT_2021),
 757                 .driver_data = APPLE_HAS_FN | APPLE_ISO_TILDE_QUIRK },
 758         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGIC_KEYBOARD_NUMPAD_2021),
 759                 .driver_data = APPLE_HAS_FN | APPLE_ISO_TILDE_QUIRK },
 760         { HID_BLUETOOTH_DEVICE(BT_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGIC_KEYBOARD_NUMPAD_2021),
 761                 .driver_data = APPLE_HAS_FN | APPLE_ISO_TILDE_QUIRK },
 762
 763         { }
 764 };
 765 MODULE_DEVICE_TABLE(hid, apple_devices);
 766
 767 static struct hid_driver apple_driver = {
 768         .name = "apple",
 769         .id_table = apple_devices,
 770         .report_fixup = apple_report_fixup,
 771         .probe = apple_probe,
 772         .remove = apple_remove,
 773         .event = apple_event,
 774         .input_mapping = apple_input_mapping,
 775         .input_mapped = apple_input_mapped,
 776         .input_configured = apple_input_configured,
 777 };
 778 module_hid_driver(apple_driver);
 779
 780 MODULE_LICENSE("GPL");