linux/drivers/hid/hid-kye.c
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   1/*
   2 *  HID driver for Kye/Genius devices not fully compliant with HID standard
   3 *
   4 *  Copyright (c) 2009 Jiri Kosina
   5 *  Copyright (c) 2009 Tomas Hanak
   6 *  Copyright (c) 2012 Nikolai Kondrashov
   7 */
   8
   9/*
  10 * This program is free software; you can redistribute it and/or modify it
  11 * under the terms of the GNU General Public License as published by the Free
  12 * Software Foundation; either version 2 of the License, or (at your option)
  13 * any later version.
  14 */
  15
  16#include <linux/device.h>
  17#include <linux/hid.h>
  18#include <linux/module.h>
  19
  20#include "hid-ids.h"
  21
  22/*
  23 * See EasyPen i405X description, device and HID report descriptors at
  24 * http://sf.net/apps/mediawiki/digimend/?title=KYE_EasyPen_i405X
  25 */
  26
  27/* Original EasyPen i405X report descriptor size */
  28#define EASYPEN_I405X_RDESC_ORIG_SIZE   476
  29
  30/* Fixed EasyPen i405X report descriptor */
  31static __u8 easypen_i405x_rdesc_fixed[] = {
  32        0x06, 0x00, 0xFF, /*  Usage Page (FF00h),             */
  33        0x09, 0x01,       /*  Usage (01h),                    */
  34        0xA1, 0x01,       /*  Collection (Application),       */
  35        0x85, 0x05,       /*    Report ID (5),                */
  36        0x09, 0x01,       /*    Usage (01h),                  */
  37        0x15, 0x80,       /*    Logical Minimum (-128),       */
  38        0x25, 0x7F,       /*    Logical Maximum (127),        */
  39        0x75, 0x08,       /*    Report Size (8),              */
  40        0x95, 0x07,       /*    Report Count (7),             */
  41        0xB1, 0x02,       /*    Feature (Variable),           */
  42        0xC0,             /*  End Collection,                 */
  43        0x05, 0x0D,       /*  Usage Page (Digitizer),         */
  44        0x09, 0x02,       /*  Usage (Pen),                    */
  45        0xA1, 0x01,       /*  Collection (Application),       */
  46        0x85, 0x10,       /*    Report ID (16),               */
  47        0x09, 0x20,       /*    Usage (Stylus),               */
  48        0xA0,             /*    Collection (Physical),        */
  49        0x14,             /*      Logical Minimum (0),        */
  50        0x25, 0x01,       /*      Logical Maximum (1),        */
  51        0x75, 0x01,       /*      Report Size (1),            */
  52        0x09, 0x42,       /*      Usage (Tip Switch),         */
  53        0x09, 0x44,       /*      Usage (Barrel Switch),      */
  54        0x09, 0x46,       /*      Usage (Tablet Pick),        */
  55        0x95, 0x03,       /*      Report Count (3),           */
  56        0x81, 0x02,       /*      Input (Variable),           */
  57        0x95, 0x04,       /*      Report Count (4),           */
  58        0x81, 0x03,       /*      Input (Constant, Variable), */
  59        0x09, 0x32,       /*      Usage (In Range),           */
  60        0x95, 0x01,       /*      Report Count (1),           */
  61        0x81, 0x02,       /*      Input (Variable),           */
  62        0x75, 0x10,       /*      Report Size (16),           */
  63        0x95, 0x01,       /*      Report Count (1),           */
  64        0xA4,             /*      Push,                       */
  65        0x05, 0x01,       /*      Usage Page (Desktop),       */
  66        0x55, 0xFD,       /*      Unit Exponent (-3),         */
  67        0x65, 0x13,       /*      Unit (Inch),                */
  68        0x34,             /*      Physical Minimum (0),       */
  69        0x09, 0x30,       /*      Usage (X),                  */
  70        0x46, 0x7C, 0x15, /*      Physical Maximum (5500),    */
  71        0x26, 0x00, 0x37, /*      Logical Maximum (14080),    */
  72        0x81, 0x02,       /*      Input (Variable),           */
  73        0x09, 0x31,       /*      Usage (Y),                  */
  74        0x46, 0xA0, 0x0F, /*      Physical Maximum (4000),    */
  75        0x26, 0x00, 0x28, /*      Logical Maximum (10240),    */
  76        0x81, 0x02,       /*      Input (Variable),           */
  77        0xB4,             /*      Pop,                        */
  78        0x09, 0x30,       /*      Usage (Tip Pressure),       */
  79        0x26, 0xFF, 0x03, /*      Logical Maximum (1023),     */
  80        0x81, 0x02,       /*      Input (Variable),           */
  81        0xC0,             /*    End Collection,               */
  82        0xC0              /*  End Collection                  */
  83};
  84
  85/*
  86 * See MousePen i608X description, device and HID report descriptors at
  87 * http://sf.net/apps/mediawiki/digimend/?title=KYE_MousePen_i608X
  88 */
  89
  90/* Original MousePen i608X report descriptor size */
  91#define MOUSEPEN_I608X_RDESC_ORIG_SIZE  476
  92
  93/* Fixed MousePen i608X report descriptor */
  94static __u8 mousepen_i608x_rdesc_fixed[] = {
  95        0x06, 0x00, 0xFF, /*  Usage Page (FF00h),             */
  96        0x09, 0x01,       /*  Usage (01h),                    */
  97        0xA1, 0x01,       /*  Collection (Application),       */
  98        0x85, 0x05,       /*    Report ID (5),                */
  99        0x09, 0x01,       /*    Usage (01h),                  */
 100        0x15, 0x80,       /*    Logical Minimum (-128),       */
 101        0x25, 0x7F,       /*    Logical Maximum (127),        */
 102        0x75, 0x08,       /*    Report Size (8),              */
 103        0x95, 0x07,       /*    Report Count (7),             */
 104        0xB1, 0x02,       /*    Feature (Variable),           */
 105        0xC0,             /*  End Collection,                 */
 106        0x05, 0x0D,       /*  Usage Page (Digitizer),         */
 107        0x09, 0x02,       /*  Usage (Pen),                    */
 108        0xA1, 0x01,       /*  Collection (Application),       */
 109        0x85, 0x10,       /*    Report ID (16),               */
 110        0x09, 0x20,       /*    Usage (Stylus),               */
 111        0xA0,             /*    Collection (Physical),        */
 112        0x14,             /*      Logical Minimum (0),        */
 113        0x25, 0x01,       /*      Logical Maximum (1),        */
 114        0x75, 0x01,       /*      Report Size (1),            */
 115        0x09, 0x42,       /*      Usage (Tip Switch),         */
 116        0x09, 0x44,       /*      Usage (Barrel Switch),      */
 117        0x09, 0x46,       /*      Usage (Tablet Pick),        */
 118        0x95, 0x03,       /*      Report Count (3),           */
 119        0x81, 0x02,       /*      Input (Variable),           */
 120        0x95, 0x04,       /*      Report Count (4),           */
 121        0x81, 0x03,       /*      Input (Constant, Variable), */
 122        0x09, 0x32,       /*      Usage (In Range),           */
 123        0x95, 0x01,       /*      Report Count (1),           */
 124        0x81, 0x02,       /*      Input (Variable),           */
 125        0x75, 0x10,       /*      Report Size (16),           */
 126        0x95, 0x01,       /*      Report Count (1),           */
 127        0xA4,             /*      Push,                       */
 128        0x05, 0x01,       /*      Usage Page (Desktop),       */
 129        0x55, 0xFD,       /*      Unit Exponent (-3),         */
 130        0x65, 0x13,       /*      Unit (Inch),                */
 131        0x34,             /*      Physical Minimum (0),       */
 132        0x09, 0x30,       /*      Usage (X),                  */
 133        0x46, 0x40, 0x1F, /*      Physical Maximum (8000),    */
 134        0x26, 0x00, 0x50, /*      Logical Maximum (20480),    */
 135        0x81, 0x02,       /*      Input (Variable),           */
 136        0x09, 0x31,       /*      Usage (Y),                  */
 137        0x46, 0x70, 0x17, /*      Physical Maximum (6000),    */
 138        0x26, 0x00, 0x3C, /*      Logical Maximum (15360),    */
 139        0x81, 0x02,       /*      Input (Variable),           */
 140        0xB4,             /*      Pop,                        */
 141        0x09, 0x30,       /*      Usage (Tip Pressure),       */
 142        0x26, 0xFF, 0x03, /*      Logical Maximum (1023),     */
 143        0x81, 0x02,       /*      Input (Variable),           */
 144        0xC0,             /*    End Collection,               */
 145        0xC0,             /*  End Collection,                 */
 146        0x05, 0x01,       /*  Usage Page (Desktop),           */
 147        0x09, 0x02,       /*  Usage (Mouse),                  */
 148        0xA1, 0x01,       /*  Collection (Application),       */
 149        0x85, 0x11,       /*    Report ID (17),               */
 150        0x09, 0x01,       /*    Usage (Pointer),              */
 151        0xA0,             /*    Collection (Physical),        */
 152        0x14,             /*      Logical Minimum (0),        */
 153        0xA4,             /*      Push,                       */
 154        0x05, 0x09,       /*      Usage Page (Button),        */
 155        0x75, 0x01,       /*      Report Size (1),            */
 156        0x19, 0x01,       /*      Usage Minimum (01h),        */
 157        0x29, 0x03,       /*      Usage Maximum (03h),        */
 158        0x25, 0x01,       /*      Logical Maximum (1),        */
 159        0x95, 0x03,       /*      Report Count (3),           */
 160        0x81, 0x02,       /*      Input (Variable),           */
 161        0x95, 0x05,       /*      Report Count (5),           */
 162        0x81, 0x01,       /*      Input (Constant),           */
 163        0xB4,             /*      Pop,                        */
 164        0x95, 0x01,       /*      Report Count (1),           */
 165        0xA4,             /*      Push,                       */
 166        0x55, 0xFD,       /*      Unit Exponent (-3),         */
 167        0x65, 0x13,       /*      Unit (Inch),                */
 168        0x34,             /*      Physical Minimum (0),       */
 169        0x75, 0x10,       /*      Report Size (16),           */
 170        0x09, 0x30,       /*      Usage (X),                  */
 171        0x46, 0x40, 0x1F, /*      Physical Maximum (8000),    */
 172        0x26, 0x00, 0x50, /*      Logical Maximum (20480),    */
 173        0x81, 0x02,       /*      Input (Variable),           */
 174        0x09, 0x31,       /*      Usage (Y),                  */
 175        0x46, 0x70, 0x17, /*      Physical Maximum (6000),    */
 176        0x26, 0x00, 0x3C, /*      Logical Maximum (15360),    */
 177        0x81, 0x02,       /*      Input (Variable),           */
 178        0xB4,             /*      Pop,                        */
 179        0x75, 0x08,       /*      Report Size (8),            */
 180        0x09, 0x38,       /*      Usage (Wheel),              */
 181        0x15, 0xFF,       /*      Logical Minimum (-1),       */
 182        0x25, 0x01,       /*      Logical Maximum (1),        */
 183        0x81, 0x06,       /*      Input (Variable, Relative), */
 184        0x81, 0x01,       /*      Input (Constant),           */
 185        0xC0,             /*    End Collection,               */
 186        0xC0              /*  End Collection                  */
 187};
 188
 189/*
 190 * See EasyPen M610X description, device and HID report descriptors at
 191 * http://sf.net/apps/mediawiki/digimend/?title=KYE_EasyPen_M610X
 192 */
 193
 194/* Original EasyPen M610X report descriptor size */
 195#define EASYPEN_M610X_RDESC_ORIG_SIZE   476
 196
 197/* Fixed EasyPen M610X report descriptor */
 198static __u8 easypen_m610x_rdesc_fixed[] = {
 199        0x06, 0x00, 0xFF,             /*  Usage Page (FF00h),             */
 200        0x09, 0x01,                   /*  Usage (01h),                    */
 201        0xA1, 0x01,                   /*  Collection (Application),       */
 202        0x85, 0x05,                   /*    Report ID (5),                */
 203        0x09, 0x01,                   /*    Usage (01h),                  */
 204        0x15, 0x80,                   /*    Logical Minimum (-128),       */
 205        0x25, 0x7F,                   /*    Logical Maximum (127),        */
 206        0x75, 0x08,                   /*    Report Size (8),              */
 207        0x95, 0x07,                   /*    Report Count (7),             */
 208        0xB1, 0x02,                   /*    Feature (Variable),           */
 209        0xC0,                         /*  End Collection,                 */
 210        0x05, 0x0D,                   /*  Usage Page (Digitizer),         */
 211        0x09, 0x02,                   /*  Usage (Pen),                    */
 212        0xA1, 0x01,                   /*  Collection (Application),       */
 213        0x85, 0x10,                   /*    Report ID (16),               */
 214        0x09, 0x20,                   /*    Usage (Stylus),               */
 215        0xA0,                         /*    Collection (Physical),        */
 216        0x14,                         /*      Logical Minimum (0),        */
 217        0x25, 0x01,                   /*      Logical Maximum (1),        */
 218        0x75, 0x01,                   /*      Report Size (1),            */
 219        0x09, 0x42,                   /*      Usage (Tip Switch),         */
 220        0x09, 0x44,                   /*      Usage (Barrel Switch),      */
 221        0x09, 0x46,                   /*      Usage (Tablet Pick),        */
 222        0x95, 0x03,                   /*      Report Count (3),           */
 223        0x81, 0x02,                   /*      Input (Variable),           */
 224        0x95, 0x04,                   /*      Report Count (4),           */
 225        0x81, 0x03,                   /*      Input (Constant, Variable), */
 226        0x09, 0x32,                   /*      Usage (In Range),           */
 227        0x95, 0x01,                   /*      Report Count (1),           */
 228        0x81, 0x02,                   /*      Input (Variable),           */
 229        0x75, 0x10,                   /*      Report Size (16),           */
 230        0x95, 0x01,                   /*      Report Count (1),           */
 231        0xA4,                         /*      Push,                       */
 232        0x05, 0x01,                   /*      Usage Page (Desktop),       */
 233        0x55, 0xFD,                   /*      Unit Exponent (-3),         */
 234        0x65, 0x13,                   /*      Unit (Inch),                */
 235        0x34,                         /*      Physical Minimum (0),       */
 236        0x09, 0x30,                   /*      Usage (X),                  */
 237        0x46, 0x10, 0x27,             /*      Physical Maximum (10000),   */
 238        0x27, 0x00, 0xA0, 0x00, 0x00, /*      Logical Maximum (40960),    */
 239        0x81, 0x02,                   /*      Input (Variable),           */
 240        0x09, 0x31,                   /*      Usage (Y),                  */
 241        0x46, 0x6A, 0x18,             /*      Physical Maximum (6250),    */
 242        0x26, 0x00, 0x64,             /*      Logical Maximum (25600),    */
 243        0x81, 0x02,                   /*      Input (Variable),           */
 244        0xB4,                         /*      Pop,                        */
 245        0x09, 0x30,                   /*      Usage (Tip Pressure),       */
 246        0x26, 0xFF, 0x03,             /*      Logical Maximum (1023),     */
 247        0x81, 0x02,                   /*      Input (Variable),           */
 248        0xC0,                         /*    End Collection,               */
 249        0xC0,                         /*  End Collection,                 */
 250        0x05, 0x0C,                   /*  Usage Page (Consumer),          */
 251        0x09, 0x01,                   /*  Usage (Consumer Control),       */
 252        0xA1, 0x01,                   /*  Collection (Application),       */
 253        0x85, 0x12,                   /*    Report ID (18),               */
 254        0x14,                         /*    Logical Minimum (0),          */
 255        0x25, 0x01,                   /*    Logical Maximum (1),          */
 256        0x75, 0x01,                   /*    Report Size (1),              */
 257        0x95, 0x04,                   /*    Report Count (4),             */
 258        0x0A, 0x1A, 0x02,             /*    Usage (AC Undo),              */
 259        0x0A, 0x79, 0x02,             /*    Usage (AC Redo Or Repeat),    */
 260        0x0A, 0x2D, 0x02,             /*    Usage (AC Zoom In),           */
 261        0x0A, 0x2E, 0x02,             /*    Usage (AC Zoom Out),          */
 262        0x81, 0x02,                   /*    Input (Variable),             */
 263        0x95, 0x01,                   /*    Report Count (1),             */
 264        0x75, 0x14,                   /*    Report Size (20),             */
 265        0x81, 0x03,                   /*    Input (Constant, Variable),   */
 266        0x75, 0x20,                   /*    Report Size (32),             */
 267        0x81, 0x03,                   /*    Input (Constant, Variable),   */
 268        0xC0                          /*  End Collection                  */
 269};
 270
 271static __u8 *kye_report_fixup(struct hid_device *hdev, __u8 *rdesc,
 272                unsigned int *rsize)
 273{
 274        switch (hdev->product) {
 275        case USB_DEVICE_ID_KYE_ERGO_525V:
 276                /* the fixups that need to be done:
 277                 *   - change led usage page to button for extra buttons
 278                 *   - report size 8 count 1 must be size 1 count 8 for button
 279                 *     bitfield
 280                 *   - change the button usage range to 4-7 for the extra
 281                 *     buttons
 282                 */
 283                if (*rsize >= 74 &&
 284                        rdesc[61] == 0x05 && rdesc[62] == 0x08 &&
 285                        rdesc[63] == 0x19 && rdesc[64] == 0x08 &&
 286                        rdesc[65] == 0x29 && rdesc[66] == 0x0f &&
 287                        rdesc[71] == 0x75 && rdesc[72] == 0x08 &&
 288                        rdesc[73] == 0x95 && rdesc[74] == 0x01) {
 289                        hid_info(hdev,
 290                                 "fixing up Kye/Genius Ergo Mouse "
 291                                 "report descriptor\n");
 292                        rdesc[62] = 0x09;
 293                        rdesc[64] = 0x04;
 294                        rdesc[66] = 0x07;
 295                        rdesc[72] = 0x01;
 296                        rdesc[74] = 0x08;
 297                }
 298                break;
 299        case USB_DEVICE_ID_KYE_EASYPEN_I405X:
 300                if (*rsize == EASYPEN_I405X_RDESC_ORIG_SIZE) {
 301                        rdesc = easypen_i405x_rdesc_fixed;
 302                        *rsize = sizeof(easypen_i405x_rdesc_fixed);
 303                }
 304                break;
 305        case USB_DEVICE_ID_KYE_MOUSEPEN_I608X:
 306                if (*rsize == MOUSEPEN_I608X_RDESC_ORIG_SIZE) {
 307                        rdesc = mousepen_i608x_rdesc_fixed;
 308                        *rsize = sizeof(mousepen_i608x_rdesc_fixed);
 309                }
 310                break;
 311        case USB_DEVICE_ID_KYE_EASYPEN_M610X:
 312                if (*rsize == EASYPEN_M610X_RDESC_ORIG_SIZE) {
 313                        rdesc = easypen_m610x_rdesc_fixed;
 314                        *rsize = sizeof(easypen_m610x_rdesc_fixed);
 315                }
 316                break;
 317        case USB_DEVICE_ID_GENIUS_GILA_GAMING_MOUSE:
 318                /*
 319                 * the fixup that need to be done:
 320                 *   - change Usage Maximum in the Comsumer Control
 321                 *     (report ID 3) to a reasonable value
 322                 */
 323                if (*rsize >= 135 &&
 324                        /* Usage Page (Consumer Devices) */
 325                        rdesc[104] == 0x05 && rdesc[105] == 0x0c &&
 326                        /* Usage (Consumer Control) */
 327                        rdesc[106] == 0x09 && rdesc[107] == 0x01 &&
 328                        /*   Usage Maximum > 12287 */
 329                        rdesc[114] == 0x2a && rdesc[116] > 0x2f) {
 330                        hid_info(hdev,
 331                                 "fixing up Genius Gila Gaming Mouse "
 332                                 "report descriptor\n");
 333                        rdesc[116] = 0x2f;
 334                }
 335                break;
 336        }
 337        return rdesc;
 338}
 339
 340/**
 341 * Enable fully-functional tablet mode by setting a special feature report.
 342 *
 343 * @hdev:       HID device
 344 *
 345 * The specific report ID and data were discovered by sniffing the
 346 * Windows driver traffic.
 347 */
 348static int kye_tablet_enable(struct hid_device *hdev)
 349{
 350        struct list_head *list;
 351        struct list_head *head;
 352        struct hid_report *report;
 353        __s32 *value;
 354
 355        list = &hdev->report_enum[HID_FEATURE_REPORT].report_list;
 356        list_for_each(head, list) {
 357                report = list_entry(head, struct hid_report, list);
 358                if (report->id == 5)
 359                        break;
 360        }
 361
 362        if (head == list) {
 363                hid_err(hdev, "tablet-enabling feature report not found\n");
 364                return -ENODEV;
 365        }
 366
 367        if (report->maxfield < 1 || report->field[0]->report_count < 7) {
 368                hid_err(hdev, "invalid tablet-enabling feature report\n");
 369                return -ENODEV;
 370        }
 371
 372        value = report->field[0]->value;
 373
 374        value[0] = 0x12;
 375        value[1] = 0x10;
 376        value[2] = 0x11;
 377        value[3] = 0x12;
 378        value[4] = 0x00;
 379        value[5] = 0x00;
 380        value[6] = 0x00;
 381        hid_hw_request(hdev, report, HID_REQ_SET_REPORT);
 382
 383        return 0;
 384}
 385
 386static int kye_probe(struct hid_device *hdev, const struct hid_device_id *id)
 387{
 388        int ret;
 389
 390        ret = hid_parse(hdev);
 391        if (ret) {
 392                hid_err(hdev, "parse failed\n");
 393                goto err;
 394        }
 395
 396        ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
 397        if (ret) {
 398                hid_err(hdev, "hw start failed\n");
 399                goto err;
 400        }
 401
 402        switch (id->product) {
 403        case USB_DEVICE_ID_KYE_EASYPEN_I405X:
 404        case USB_DEVICE_ID_KYE_MOUSEPEN_I608X:
 405        case USB_DEVICE_ID_KYE_EASYPEN_M610X:
 406                ret = kye_tablet_enable(hdev);
 407                if (ret) {
 408                        hid_err(hdev, "tablet enabling failed\n");
 409                        goto enabling_err;
 410                }
 411                break;
 412        }
 413
 414        return 0;
 415enabling_err:
 416        hid_hw_stop(hdev);
 417err:
 418        return ret;
 419}
 420
 421static const struct hid_device_id kye_devices[] = {
 422        { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_ERGO_525V) },
 423        { HID_USB_DEVICE(USB_VENDOR_ID_KYE,
 424                                USB_DEVICE_ID_KYE_EASYPEN_I405X) },
 425        { HID_USB_DEVICE(USB_VENDOR_ID_KYE,
 426                                USB_DEVICE_ID_KYE_MOUSEPEN_I608X) },
 427        { HID_USB_DEVICE(USB_VENDOR_ID_KYE,
 428                                USB_DEVICE_ID_KYE_EASYPEN_M610X) },
 429        { HID_USB_DEVICE(USB_VENDOR_ID_KYE,
 430                                USB_DEVICE_ID_GENIUS_GILA_GAMING_MOUSE) },
 431        { }
 432};
 433MODULE_DEVICE_TABLE(hid, kye_devices);
 434
 435static struct hid_driver kye_driver = {
 436        .name = "kye",
 437        .id_table = kye_devices,
 438        .probe = kye_probe,
 439        .report_fixup = kye_report_fixup,
 440};
 441module_hid_driver(kye_driver);
 442
 443MODULE_LICENSE("GPL");
 444
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