drivers/hid/hid-microsoft.c

   1 /*
   2  *  HID driver for some microsoft "special" devices
   3  *
   4  *  Copyright (c) 1999 Andreas Gal
   5  *  Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz>
   6  *  Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc
   7  *  Copyright (c) 2006-2007 Jiri Kosina
   8  *  Copyright (c) 2008 Jiri Slaby
   9  */
  10
  11 /*
  12  * This program is free software; you can redistribute it and/or modify it
  13  * under the terms of the GNU General Public License as published by the Free
  14  * Software Foundation; either version 2 of the License, or (at your option)
  15  * any later version.
  16  */
  17
  18 #include <linux/device.h>
  19 #include <linux/input.h>
  20 #include <linux/hid.h>
  21 #include <linux/module.h>
  22
  23 #include "hid-ids.h"
  24
  25 #define MS_HIDINPUT             BIT(0)
  26 #define MS_ERGONOMY             BIT(1)
  27 #define MS_PRESENTER            BIT(2)
  28 #define MS_RDESC                BIT(3)
  29 #define MS_NOGET                BIT(4)
  30 #define MS_DUPLICATE_USAGES     BIT(5)
  31 #define MS_SURFACE_DIAL         BIT(6)
  32 #define MS_QUIRK_FF             BIT(7)
  33
  34 struct ms_data {
  35         unsigned long quirks;
  36         struct hid_device *hdev;
  37         struct work_struct ff_worker;
  38         __u8 strong;
  39         __u8 weak;
  40         void *output_report_dmabuf;
  41 };
  42
  43 #define XB1S_FF_REPORT          3
  44 #define ENABLE_WEAK             BIT(0)
  45 #define ENABLE_STRONG           BIT(1)
  46
  47 enum {
  48         MAGNITUDE_STRONG = 2,
  49         MAGNITUDE_WEAK,
  50         MAGNITUDE_NUM
  51 };
  52
  53 struct xb1s_ff_report {
  54         __u8    report_id;
  55         __u8    enable;
  56         __u8    magnitude[MAGNITUDE_NUM];
  57         __u8    duration_10ms;
  58         __u8    start_delay_10ms;
  59         __u8    loop_count;
  60 } __packed;
  61
  62 static __u8 *ms_report_fixup(struct hid_device *hdev, __u8 *rdesc,
  63                 unsigned int *rsize)
  64 {
  65         struct ms_data *ms = hid_get_drvdata(hdev);
  66         unsigned long quirks = ms->quirks;
  67
  68         /*
  69          * Microsoft Wireless Desktop Receiver (Model 1028) has
  70          * 'Usage Min/Max' where it ought to have 'Physical Min/Max'
  71          */
  72         if ((quirks & MS_RDESC) && *rsize == 571 && rdesc[557] == 0x19 &&
  73                         rdesc[559] == 0x29) {
  74                 hid_info(hdev, "fixing up Microsoft Wireless Receiver Model 1028 report descriptor\n");
  75                 rdesc[557] = 0x35;
  76                 rdesc[559] = 0x45;
  77         }
  78         return rdesc;
  79 }
  80
  81 #define ms_map_key_clear(c)     hid_map_usage_clear(hi, usage, bit, max, \
  82                                         EV_KEY, (c))
  83 static int ms_ergonomy_kb_quirk(struct hid_input *hi, struct hid_usage *usage,
  84                 unsigned long **bit, int *max)
  85 {
  86         struct input_dev *input = hi->input;
  87
  88         if ((usage->hid & HID_USAGE_PAGE) == HID_UP_CONSUMER) {
  89                 switch (usage->hid & HID_USAGE) {
  90                 /*
  91                  * Microsoft uses these 2 reserved usage ids for 2 keys on
  92                  * the MS office kb labelled "Office Home" and "Task Pane".
  93                  */
  94                 case 0x29d:
  95                         ms_map_key_clear(KEY_PROG1);
  96                         return 1;
  97                 case 0x29e:
  98                         ms_map_key_clear(KEY_PROG2);
  99                         return 1;
 100                 }
 101                 return 0;
 102         }
 103
 104         if ((usage->hid & HID_USAGE_PAGE) != HID_UP_MSVENDOR)
 105                 return 0;
 106
 107         switch (usage->hid & HID_USAGE) {
 108         case 0xfd06: ms_map_key_clear(KEY_CHAT);        break;
 109         case 0xfd07: ms_map_key_clear(KEY_PHONE);       break;
 110         case 0xff00:
 111                 /* Special keypad keys */
 112                 ms_map_key_clear(KEY_KPEQUAL);
 113                 set_bit(KEY_KPLEFTPAREN, input->keybit);
 114                 set_bit(KEY_KPRIGHTPAREN, input->keybit);
 115                 break;
 116         case 0xff01:
 117                 /* Scroll wheel */
 118                 hid_map_usage_clear(hi, usage, bit, max, EV_REL, REL_WHEEL);
 119                 break;
 120         case 0xff02:
 121                 /*
 122                  * This byte contains a copy of the modifier keys byte of a
 123                  * standard hid keyboard report, as send by interface 0
 124                  * (this usage is found on interface 1).
 125                  *
 126                  * This byte only gets send when another key in the same report
 127                  * changes state, and as such is useless, ignore it.
 128                  */
 129                 return -1;
 130         case 0xff05:
 131                 set_bit(EV_REP, input->evbit);
 132                 ms_map_key_clear(KEY_F13);
 133                 set_bit(KEY_F14, input->keybit);
 134                 set_bit(KEY_F15, input->keybit);
 135                 set_bit(KEY_F16, input->keybit);
 136                 set_bit(KEY_F17, input->keybit);
 137                 set_bit(KEY_F18, input->keybit);
 138                 break;
 139         default:
 140                 return 0;
 141         }
 142         return 1;
 143 }
 144
 145 static int ms_presenter_8k_quirk(struct hid_input *hi, struct hid_usage *usage,
 146                 unsigned long **bit, int *max)
 147 {
 148         if ((usage->hid & HID_USAGE_PAGE) != HID_UP_MSVENDOR)
 149                 return 0;
 150
 151         set_bit(EV_REP, hi->input->evbit);
 152         switch (usage->hid & HID_USAGE) {
 153         case 0xfd08: ms_map_key_clear(KEY_FORWARD);     break;
 154         case 0xfd09: ms_map_key_clear(KEY_BACK);        break;
 155         case 0xfd0b: ms_map_key_clear(KEY_PLAYPAUSE);   break;
 156         case 0xfd0e: ms_map_key_clear(KEY_CLOSE);       break;
 157         case 0xfd0f: ms_map_key_clear(KEY_PLAY);        break;
 158         default:
 159                 return 0;
 160         }
 161         return 1;
 162 }
 163
 164 static int ms_surface_dial_quirk(struct hid_input *hi, struct hid_field *field,
 165                 struct hid_usage *usage, unsigned long **bit, int *max)
 166 {
 167         switch (usage->hid & HID_USAGE_PAGE) {
 168         case 0xff070000:
 169                 /* fall-through */
 170         case HID_UP_DIGITIZER:
 171                 /* ignore those axis */
 172                 return -1;
 173         case HID_UP_GENDESK:
 174                 switch (usage->hid) {
 175                 case HID_GD_X:
 176                         /* fall-through */
 177                 case HID_GD_Y:
 178                         /* fall-through */
 179                 case HID_GD_RFKILL_BTN:
 180                         /* ignore those axis */
 181                         return -1;
 182                 }
 183         }
 184
 185         return 0;
 186 }
 187
 188 static int ms_input_mapping(struct hid_device *hdev, struct hid_input *hi,
 189                 struct hid_field *field, struct hid_usage *usage,
 190                 unsigned long **bit, int *max)
 191 {
 192         struct ms_data *ms = hid_get_drvdata(hdev);
 193         unsigned long quirks = ms->quirks;
 194
 195         if (quirks & MS_ERGONOMY) {
 196                 int ret = ms_ergonomy_kb_quirk(hi, usage, bit, max);
 197                 if (ret)
 198                         return ret;
 199         }
 200
 201         if ((quirks & MS_PRESENTER) &&
 202                         ms_presenter_8k_quirk(hi, usage, bit, max))
 203                 return 1;
 204
 205         if (quirks & MS_SURFACE_DIAL) {
 206                 int ret = ms_surface_dial_quirk(hi, field, usage, bit, max);
 207
 208                 if (ret)
 209                         return ret;
 210         }
 211
 212         return 0;
 213 }
 214
 215 static int ms_input_mapped(struct hid_device *hdev, struct hid_input *hi,
 216                 struct hid_field *field, struct hid_usage *usage,
 217                 unsigned long **bit, int *max)
 218 {
 219         struct ms_data *ms = hid_get_drvdata(hdev);
 220         unsigned long quirks = ms->quirks;
 221
 222         if (quirks & MS_DUPLICATE_USAGES)
 223                 clear_bit(usage->code, *bit);
 224
 225         return 0;
 226 }
 227
 228 static int ms_event(struct hid_device *hdev, struct hid_field *field,
 229                 struct hid_usage *usage, __s32 value)
 230 {
 231         struct ms_data *ms = hid_get_drvdata(hdev);
 232         unsigned long quirks = ms->quirks;
 233         struct input_dev *input;
 234
 235         if (!(hdev->claimed & HID_CLAIMED_INPUT) || !field->hidinput ||
 236                         !usage->type)
 237                 return 0;
 238
 239         input = field->hidinput->input;
 240
 241         /* Handling MS keyboards special buttons */
 242         if (quirks & MS_ERGONOMY && usage->hid == (HID_UP_MSVENDOR | 0xff00)) {
 243                 /* Special keypad keys */
 244                 input_report_key(input, KEY_KPEQUAL, value & 0x01);
 245                 input_report_key(input, KEY_KPLEFTPAREN, value & 0x02);
 246                 input_report_key(input, KEY_KPRIGHTPAREN, value & 0x04);
 247                 return 1;
 248         }
 249
 250         if (quirks & MS_ERGONOMY && usage->hid == (HID_UP_MSVENDOR | 0xff01)) {
 251                 /* Scroll wheel */
 252                 int step = ((value & 0x60) >> 5) + 1;
 253
 254                 switch (value & 0x1f) {
 255                 case 0x01:
 256                         input_report_rel(input, REL_WHEEL, step);
 257                         break;
 258                 case 0x1f:
 259                         input_report_rel(input, REL_WHEEL, -step);
 260                         break;
 261                 }
 262                 return 1;
 263         }
 264
 265         if (quirks & MS_ERGONOMY && usage->hid == (HID_UP_MSVENDOR | 0xff05)) {
 266                 static unsigned int last_key = 0;
 267                 unsigned int key = 0;
 268                 switch (value) {
 269                 case 0x01: key = KEY_F14; break;
 270                 case 0x02: key = KEY_F15; break;
 271                 case 0x04: key = KEY_F16; break;
 272                 case 0x08: key = KEY_F17; break;
 273                 case 0x10: key = KEY_F18; break;
 274                 }
 275                 if (key) {
 276                         input_event(input, usage->type, key, 1);
 277                         last_key = key;
 278                 } else
 279                         input_event(input, usage->type, last_key, 0);
 280
 281                 return 1;
 282         }
 283
 284         return 0;
 285 }
 286
 287 static void ms_ff_worker(struct work_struct *work)
 288 {
 289         struct ms_data *ms = container_of(work, struct ms_data, ff_worker);
 290         struct hid_device *hdev = ms->hdev;
 291         struct xb1s_ff_report *r = ms->output_report_dmabuf;
 292         int ret;
 293
 294         memset(r, 0, sizeof(*r));
 295
 296         r->report_id = XB1S_FF_REPORT;
 297         r->enable = ENABLE_WEAK | ENABLE_STRONG;
 298         /*
 299          * Specifying maximum duration and maximum loop count should
 300          * cover maximum duration of a single effect, which is 65536
 301          * ms
 302          */
 303         r->duration_10ms = U8_MAX;
 304         r->loop_count = U8_MAX;
 305         r->magnitude[MAGNITUDE_STRONG] = ms->strong; /* left actuator */
 306         r->magnitude[MAGNITUDE_WEAK] = ms->weak;     /* right actuator */
 307
 308         ret = hid_hw_output_report(hdev, (__u8 *)r, sizeof(*r));
 309         if (ret)
 310                 hid_warn(hdev, "failed to send FF report\n");
 311 }
 312
 313 static int ms_play_effect(struct input_dev *dev, void *data,
 314                           struct ff_effect *effect)
 315 {
 316         struct hid_device *hid = input_get_drvdata(dev);
 317         struct ms_data *ms = hid_get_drvdata(hid);
 318
 319         if (effect->type != FF_RUMBLE)
 320                 return 0;
 321
 322         /*
 323          * Magnitude is 0..100 so scale the 16-bit input here
 324          */
 325         ms->strong = ((u32) effect->u.rumble.strong_magnitude * 100) / U16_MAX;
 326         ms->weak = ((u32) effect->u.rumble.weak_magnitude * 100) / U16_MAX;
 327
 328         schedule_work(&ms->ff_worker);
 329         return 0;
 330 }
 331
 332 static int ms_init_ff(struct hid_device *hdev)
 333 {
 334         struct hid_input *hidinput = list_entry(hdev->inputs.next,
 335                                                 struct hid_input, list);
 336         struct input_dev *input_dev = hidinput->input;
 337         struct ms_data *ms = hid_get_drvdata(hdev);
 338
 339         if (!(ms->quirks & MS_QUIRK_FF))
 340                 return 0;
 341
 342         ms->hdev = hdev;
 343         INIT_WORK(&ms->ff_worker, ms_ff_worker);
 344
 345         ms->output_report_dmabuf = devm_kzalloc(&hdev->dev,
 346                                                 sizeof(struct xb1s_ff_report),
 347                                                 GFP_KERNEL);
 348         if (ms->output_report_dmabuf == NULL)
 349                 return -ENOMEM;
 350
 351         input_set_capability(input_dev, EV_FF, FF_RUMBLE);
 352         return input_ff_create_memless(input_dev, NULL, ms_play_effect);
 353 }
 354
 355 static void ms_remove_ff(struct hid_device *hdev)
 356 {
 357         struct ms_data *ms = hid_get_drvdata(hdev);
 358
 359         if (!(ms->quirks & MS_QUIRK_FF))
 360                 return;
 361
 362         cancel_work_sync(&ms->ff_worker);
 363 }
 364
 365 static int ms_probe(struct hid_device *hdev, const struct hid_device_id *id)
 366 {
 367         unsigned long quirks = id->driver_data;
 368         struct ms_data *ms;
 369         int ret;
 370
 371         ms = devm_kzalloc(&hdev->dev, sizeof(*ms), GFP_KERNEL);
 372         if (ms == NULL)
 373                 return -ENOMEM;
 374
 375         ms->quirks = quirks;
 376
 377         hid_set_drvdata(hdev, ms);
 378
 379         if (quirks & MS_NOGET)
 380                 hdev->quirks |= HID_QUIRK_NOGET;
 381
 382         if (quirks & MS_SURFACE_DIAL)
 383                 hdev->quirks |= HID_QUIRK_INPUT_PER_APP;
 384
 385         ret = hid_parse(hdev);
 386         if (ret) {
 387                 hid_err(hdev, "parse failed\n");
 388                 goto err_free;
 389         }
 390
 391         ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT | ((quirks & MS_HIDINPUT) ?
 392                                 HID_CONNECT_HIDINPUT_FORCE : 0));
 393         if (ret) {
 394                 hid_err(hdev, "hw start failed\n");
 395                 goto err_free;
 396         }
 397
 398         ret = ms_init_ff(hdev);
 399         if (ret)
 400                 hid_err(hdev, "could not initialize ff, continuing anyway");
 401
 402         return 0;
 403 err_free:
 404         return ret;
 405 }
 406
 407 static void ms_remove(struct hid_device *hdev)
 408 {
 409         hid_hw_stop(hdev);
 410         ms_remove_ff(hdev);
 411 }
 412
 413 static const struct hid_device_id ms_devices[] = {
 414         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_SIDEWINDER_GV),
 415                 .driver_data = MS_HIDINPUT },
 416         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_OFFICE_KB),
 417                 .driver_data = MS_ERGONOMY },
 418         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_NE4K),
 419                 .driver_data = MS_ERGONOMY },
 420         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_NE4K_JP),
 421                 .driver_data = MS_ERGONOMY },
 422         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_NE7K),
 423                 .driver_data = MS_ERGONOMY },
 424         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_LK6K),
 425                 .driver_data = MS_ERGONOMY | MS_RDESC },
 426         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_USB),
 427                 .driver_data = MS_PRESENTER },
 428         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_DIGITAL_MEDIA_3K),
 429                 .driver_data = MS_ERGONOMY },
 430         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_DIGITAL_MEDIA_7K),
 431                 .driver_data = MS_ERGONOMY },
 432         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_DIGITAL_MEDIA_600),
 433                 .driver_data = MS_ERGONOMY },
 434         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_DIGITAL_MEDIA_3KV1),
 435                 .driver_data = MS_ERGONOMY },
 436         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_WIRELESS_OPTICAL_DESKTOP_3_0),
 437                 .driver_data = MS_NOGET },
 438         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_COMFORT_MOUSE_4500),
 439                 .driver_data = MS_DUPLICATE_USAGES },
 440         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_POWER_COVER),
 441                 .driver_data = MS_HIDINPUT },
 442         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_COMFORT_KEYBOARD),
 443                 .driver_data = MS_ERGONOMY},
 444
 445         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_BT),
 446                 .driver_data = MS_PRESENTER },
 447         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_MICROSOFT, 0x091B),
 448                 .driver_data = MS_SURFACE_DIAL },
 449         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_XBOX_ONE_S_CONTROLLER),
 450                 .driver_data = MS_QUIRK_FF },
 451         { }
 452 };
 453 MODULE_DEVICE_TABLE(hid, ms_devices);
 454
 455 static struct hid_driver ms_driver = {
 456         .name = "microsoft",
 457         .id_table = ms_devices,
 458         .report_fixup = ms_report_fixup,
 459         .input_mapping = ms_input_mapping,
 460         .input_mapped = ms_input_mapped,
 461         .event = ms_event,
 462         .probe = ms_probe,
 463         .remove = ms_remove,
 464 };
 465 module_hid_driver(ms_driver);
 466
 467 MODULE_LICENSE("GPL");