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