include/linux/hid.h

   1 /*
   2  *  Copyright (c) 1999 Andreas Gal
   3  *  Copyright (c) 2000-2001 Vojtech Pavlik
   4  *  Copyright (c) 2006-2007 Jiri Kosina
   5  */
   6 /*
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 2 of the License, or
  10  * (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program; if not, write to the Free Software
  19  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  20  *
  21  * Should you need to contact me, the author, you can do so either by
  22  * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
  23  * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
  24  */
  25 #ifndef __HID_H
  26 #define __HID_H
  27
  28
  29 #include <linux/types.h>
  30 #include <linux/slab.h>
  31 #include <linux/list.h>
  32 #include <linux/mod_devicetable.h> /* hid_device_id */
  33 #include <linux/timer.h>
  34 #include <linux/workqueue.h>
  35 #include <linux/input.h>
  36 #include <linux/semaphore.h>
  37 #include <linux/power_supply.h>
  38 #include <uapi/linux/hid.h>
  39
  40 /*
  41  * We parse each description item into this structure. Short items data
  42  * values are expanded to 32-bit signed int, long items contain a pointer
  43  * into the data area.
  44  */
  45
  46 struct hid_item {
  47         unsigned  format;
  48         __u8      size;
  49         __u8      type;
  50         __u8      tag;
  51         union {
  52             __u8   u8;
  53             __s8   s8;
  54             __u16  u16;
  55             __s16  s16;
  56             __u32  u32;
  57             __s32  s32;
  58             __u8  *longdata;
  59         } data;
  60 };
  61
  62 /*
  63  * HID report item format
  64  */
  65
  66 #define HID_ITEM_FORMAT_SHORT   0
  67 #define HID_ITEM_FORMAT_LONG    1
  68
  69 /*
  70  * Special tag indicating long items
  71  */
  72
  73 #define HID_ITEM_TAG_LONG       15
  74
  75 /*
  76  * HID report descriptor item type (prefix bit 2,3)
  77  */
  78
  79 #define HID_ITEM_TYPE_MAIN              0
  80 #define HID_ITEM_TYPE_GLOBAL            1
  81 #define HID_ITEM_TYPE_LOCAL             2
  82 #define HID_ITEM_TYPE_RESERVED          3
  83
  84 /*
  85  * HID report descriptor main item tags
  86  */
  87
  88 #define HID_MAIN_ITEM_TAG_INPUT                 8
  89 #define HID_MAIN_ITEM_TAG_OUTPUT                9
  90 #define HID_MAIN_ITEM_TAG_FEATURE               11
  91 #define HID_MAIN_ITEM_TAG_BEGIN_COLLECTION      10
  92 #define HID_MAIN_ITEM_TAG_END_COLLECTION        12
  93
  94 /*
  95  * HID report descriptor main item contents
  96  */
  97
  98 #define HID_MAIN_ITEM_CONSTANT          0x001
  99 #define HID_MAIN_ITEM_VARIABLE          0x002
 100 #define HID_MAIN_ITEM_RELATIVE          0x004
 101 #define HID_MAIN_ITEM_WRAP              0x008
 102 #define HID_MAIN_ITEM_NONLINEAR         0x010
 103 #define HID_MAIN_ITEM_NO_PREFERRED      0x020
 104 #define HID_MAIN_ITEM_NULL_STATE        0x040
 105 #define HID_MAIN_ITEM_VOLATILE          0x080
 106 #define HID_MAIN_ITEM_BUFFERED_BYTE     0x100
 107
 108 /*
 109  * HID report descriptor collection item types
 110  */
 111
 112 #define HID_COLLECTION_PHYSICAL         0
 113 #define HID_COLLECTION_APPLICATION      1
 114 #define HID_COLLECTION_LOGICAL          2
 115
 116 /*
 117  * HID report descriptor global item tags
 118  */
 119
 120 #define HID_GLOBAL_ITEM_TAG_USAGE_PAGE          0
 121 #define HID_GLOBAL_ITEM_TAG_LOGICAL_MINIMUM     1
 122 #define HID_GLOBAL_ITEM_TAG_LOGICAL_MAXIMUM     2
 123 #define HID_GLOBAL_ITEM_TAG_PHYSICAL_MINIMUM    3
 124 #define HID_GLOBAL_ITEM_TAG_PHYSICAL_MAXIMUM    4
 125 #define HID_GLOBAL_ITEM_TAG_UNIT_EXPONENT       5
 126 #define HID_GLOBAL_ITEM_TAG_UNIT                6
 127 #define HID_GLOBAL_ITEM_TAG_REPORT_SIZE         7
 128 #define HID_GLOBAL_ITEM_TAG_REPORT_ID           8
 129 #define HID_GLOBAL_ITEM_TAG_REPORT_COUNT        9
 130 #define HID_GLOBAL_ITEM_TAG_PUSH                10
 131 #define HID_GLOBAL_ITEM_TAG_POP                 11
 132
 133 /*
 134  * HID report descriptor local item tags
 135  */
 136
 137 #define HID_LOCAL_ITEM_TAG_USAGE                0
 138 #define HID_LOCAL_ITEM_TAG_USAGE_MINIMUM        1
 139 #define HID_LOCAL_ITEM_TAG_USAGE_MAXIMUM        2
 140 #define HID_LOCAL_ITEM_TAG_DESIGNATOR_INDEX     3
 141 #define HID_LOCAL_ITEM_TAG_DESIGNATOR_MINIMUM   4
 142 #define HID_LOCAL_ITEM_TAG_DESIGNATOR_MAXIMUM   5
 143 #define HID_LOCAL_ITEM_TAG_STRING_INDEX         7
 144 #define HID_LOCAL_ITEM_TAG_STRING_MINIMUM       8
 145 #define HID_LOCAL_ITEM_TAG_STRING_MAXIMUM       9
 146 #define HID_LOCAL_ITEM_TAG_DELIMITER            10
 147
 148 /*
 149  * HID usage tables
 150  */
 151
 152 #define HID_USAGE_PAGE          0xffff0000
 153
 154 #define HID_UP_UNDEFINED        0x00000000
 155 #define HID_UP_GENDESK          0x00010000
 156 #define HID_UP_SIMULATION       0x00020000
 157 #define HID_UP_GENDEVCTRLS      0x00060000
 158 #define HID_UP_KEYBOARD         0x00070000
 159 #define HID_UP_LED              0x00080000
 160 #define HID_UP_BUTTON           0x00090000
 161 #define HID_UP_ORDINAL          0x000a0000
 162 #define HID_UP_TELEPHONY        0x000b0000
 163 #define HID_UP_CONSUMER         0x000c0000
 164 #define HID_UP_DIGITIZER        0x000d0000
 165 #define HID_UP_PID              0x000f0000
 166 #define HID_UP_HPVENDOR         0xff7f0000
 167 #define HID_UP_HPVENDOR2        0xff010000
 168 #define HID_UP_MSVENDOR         0xff000000
 169 #define HID_UP_CUSTOM           0x00ff0000
 170 #define HID_UP_LOGIVENDOR       0xffbc0000
 171 #define HID_UP_LOGIVENDOR2   0xff090000
 172 #define HID_UP_LOGIVENDOR3   0xff430000
 173 #define HID_UP_LNVENDOR         0xffa00000
 174 #define HID_UP_SENSOR           0x00200000
 175
 176 #define HID_USAGE               0x0000ffff
 177
 178 #define HID_GD_POINTER          0x00010001
 179 #define HID_GD_MOUSE            0x00010002
 180 #define HID_GD_JOYSTICK         0x00010004
 181 #define HID_GD_GAMEPAD          0x00010005
 182 #define HID_GD_KEYBOARD         0x00010006
 183 #define HID_GD_KEYPAD           0x00010007
 184 #define HID_GD_MULTIAXIS        0x00010008
 185 #define HID_GD_X                0x00010030
 186 #define HID_GD_Y                0x00010031
 187 #define HID_GD_Z                0x00010032
 188 #define HID_GD_RX               0x00010033
 189 #define HID_GD_RY               0x00010034
 190 #define HID_GD_RZ               0x00010035
 191 #define HID_GD_SLIDER           0x00010036
 192 #define HID_GD_DIAL             0x00010037
 193 #define HID_GD_WHEEL            0x00010038
 194 #define HID_GD_HATSWITCH        0x00010039
 195 #define HID_GD_BUFFER           0x0001003a
 196 #define HID_GD_BYTECOUNT        0x0001003b
 197 #define HID_GD_MOTION           0x0001003c
 198 #define HID_GD_START            0x0001003d
 199 #define HID_GD_SELECT           0x0001003e
 200 #define HID_GD_VX               0x00010040
 201 #define HID_GD_VY               0x00010041
 202 #define HID_GD_VZ               0x00010042
 203 #define HID_GD_VBRX             0x00010043
 204 #define HID_GD_VBRY             0x00010044
 205 #define HID_GD_VBRZ             0x00010045
 206 #define HID_GD_VNO              0x00010046
 207 #define HID_GD_FEATURE          0x00010047
 208 #define HID_GD_SYSTEM_CONTROL   0x00010080
 209 #define HID_GD_UP               0x00010090
 210 #define HID_GD_DOWN             0x00010091
 211 #define HID_GD_RIGHT            0x00010092
 212 #define HID_GD_LEFT             0x00010093
 213
 214 #define HID_DC_BATTERYSTRENGTH  0x00060020
 215
 216 #define HID_CP_CONSUMER_CONTROL 0x000c0001
 217
 218 #define HID_DG_DIGITIZER        0x000d0001
 219 #define HID_DG_PEN              0x000d0002
 220 #define HID_DG_LIGHTPEN         0x000d0003
 221 #define HID_DG_TOUCHSCREEN      0x000d0004
 222 #define HID_DG_TOUCHPAD         0x000d0005
 223 #define HID_DG_STYLUS           0x000d0020
 224 #define HID_DG_PUCK             0x000d0021
 225 #define HID_DG_FINGER           0x000d0022
 226 #define HID_DG_TIPPRESSURE      0x000d0030
 227 #define HID_DG_BARRELPRESSURE   0x000d0031
 228 #define HID_DG_INRANGE          0x000d0032
 229 #define HID_DG_TOUCH            0x000d0033
 230 #define HID_DG_UNTOUCH          0x000d0034
 231 #define HID_DG_TAP              0x000d0035
 232 #define HID_DG_TABLETFUNCTIONKEY        0x000d0039
 233 #define HID_DG_PROGRAMCHANGEKEY 0x000d003a
 234 #define HID_DG_BATTERYSTRENGTH  0x000d003b
 235 #define HID_DG_INVERT           0x000d003c
 236 #define HID_DG_TILT_X           0x000d003d
 237 #define HID_DG_TILT_Y           0x000d003e
 238 #define HID_DG_TWIST            0x000d0041
 239 #define HID_DG_TIPSWITCH        0x000d0042
 240 #define HID_DG_TIPSWITCH2       0x000d0043
 241 #define HID_DG_BARRELSWITCH     0x000d0044
 242 #define HID_DG_ERASER           0x000d0045
 243 #define HID_DG_TABLETPICK       0x000d0046
 244
 245 #define HID_CP_CONSUMERCONTROL  0x000c0001
 246 #define HID_CP_NUMERICKEYPAD    0x000c0002
 247 #define HID_CP_PROGRAMMABLEBUTTONS      0x000c0003
 248 #define HID_CP_MICROPHONE       0x000c0004
 249 #define HID_CP_HEADPHONE        0x000c0005
 250 #define HID_CP_GRAPHICEQUALIZER 0x000c0006
 251 #define HID_CP_FUNCTIONBUTTONS  0x000c0036
 252 #define HID_CP_SELECTION        0x000c0080
 253 #define HID_CP_MEDIASELECTION   0x000c0087
 254 #define HID_CP_SELECTDISC       0x000c00ba
 255 #define HID_CP_PLAYBACKSPEED    0x000c00f1
 256 #define HID_CP_PROXIMITY        0x000c0109
 257 #define HID_CP_SPEAKERSYSTEM    0x000c0160
 258 #define HID_CP_CHANNELLEFT      0x000c0161
 259 #define HID_CP_CHANNELRIGHT     0x000c0162
 260 #define HID_CP_CHANNELCENTER    0x000c0163
 261 #define HID_CP_CHANNELFRONT     0x000c0164
 262 #define HID_CP_CHANNELCENTERFRONT       0x000c0165
 263 #define HID_CP_CHANNELSIDE      0x000c0166
 264 #define HID_CP_CHANNELSURROUND  0x000c0167
 265 #define HID_CP_CHANNELLOWFREQUENCYENHANCEMENT   0x000c0168
 266 #define HID_CP_CHANNELTOP       0x000c0169
 267 #define HID_CP_CHANNELUNKNOWN   0x000c016a
 268 #define HID_CP_APPLICATIONLAUNCHBUTTONS 0x000c0180
 269 #define HID_CP_GENERICGUIAPPLICATIONCONTROLS    0x000c0200
 270
 271 #define HID_DG_CONFIDENCE       0x000d0047
 272 #define HID_DG_WIDTH            0x000d0048
 273 #define HID_DG_HEIGHT           0x000d0049
 274 #define HID_DG_CONTACTID        0x000d0051
 275 #define HID_DG_INPUTMODE        0x000d0052
 276 #define HID_DG_DEVICEINDEX      0x000d0053
 277 #define HID_DG_CONTACTCOUNT     0x000d0054
 278 #define HID_DG_CONTACTMAX       0x000d0055
 279 #define HID_DG_BUTTONTYPE       0x000d0059
 280 #define HID_DG_BARRELSWITCH2    0x000d005a
 281 #define HID_DG_TOOLSERIALNUMBER 0x000d005b
 282
 283 /*
 284  * HID report types --- Ouch! HID spec says 1 2 3!
 285  */
 286
 287 #define HID_INPUT_REPORT        0
 288 #define HID_OUTPUT_REPORT       1
 289 #define HID_FEATURE_REPORT      2
 290
 291 #define HID_REPORT_TYPES        3
 292
 293 /*
 294  * HID connect requests
 295  */
 296
 297 #define HID_CONNECT_HIDINPUT            0x01
 298 #define HID_CONNECT_HIDINPUT_FORCE      0x02
 299 #define HID_CONNECT_HIDRAW              0x04
 300 #define HID_CONNECT_HIDDEV              0x08
 301 #define HID_CONNECT_HIDDEV_FORCE        0x10
 302 #define HID_CONNECT_FF                  0x20
 303 #define HID_CONNECT_DRIVER              0x40
 304 #define HID_CONNECT_DEFAULT     (HID_CONNECT_HIDINPUT|HID_CONNECT_HIDRAW| \
 305                 HID_CONNECT_HIDDEV|HID_CONNECT_FF)
 306
 307 /*
 308  * HID device quirks.
 309  */
 310
 311 /*
 312  * Increase this if you need to configure more HID quirks at module load time
 313  */
 314 #define MAX_USBHID_BOOT_QUIRKS 4
 315
 316 #define HID_QUIRK_INVERT                        0x00000001
 317 #define HID_QUIRK_NOTOUCH                       0x00000002
 318 #define HID_QUIRK_IGNORE                        0x00000004
 319 #define HID_QUIRK_NOGET                         0x00000008
 320 #define HID_QUIRK_HIDDEV_FORCE                  0x00000010
 321 #define HID_QUIRK_BADPAD                        0x00000020
 322 #define HID_QUIRK_MULTI_INPUT                   0x00000040
 323 #define HID_QUIRK_HIDINPUT_FORCE                0x00000080
 324 #define HID_QUIRK_NO_EMPTY_INPUT                0x00000100
 325 #define HID_QUIRK_NO_INIT_INPUT_REPORTS         0x00000200
 326 #define HID_QUIRK_ALWAYS_POLL                   0x00000400
 327 #define HID_QUIRK_SKIP_OUTPUT_REPORTS           0x00010000
 328 #define HID_QUIRK_SKIP_OUTPUT_REPORT_ID         0x00020000
 329 #define HID_QUIRK_NO_OUTPUT_REPORTS_ON_INTR_EP  0x00040000
 330 #define HID_QUIRK_FULLSPEED_INTERVAL            0x10000000
 331 #define HID_QUIRK_NO_INIT_REPORTS               0x20000000
 332 #define HID_QUIRK_NO_IGNORE                     0x40000000
 333 #define HID_QUIRK_NO_INPUT_SYNC                 0x80000000
 334
 335 /*
 336  * HID device groups
 337  *
 338  * Note: HID_GROUP_ANY is declared in linux/mod_devicetable.h
 339  * and has a value of 0x0000
 340  */
 341 #define HID_GROUP_GENERIC                       0x0001
 342 #define HID_GROUP_MULTITOUCH                    0x0002
 343 #define HID_GROUP_SENSOR_HUB                    0x0003
 344 #define HID_GROUP_MULTITOUCH_WIN_8              0x0004
 345
 346 /*
 347  * Vendor specific HID device groups
 348  */
 349 #define HID_GROUP_RMI                           0x0100
 350 #define HID_GROUP_WACOM                         0x0101
 351 #define HID_GROUP_LOGITECH_DJ_DEVICE            0x0102
 352
 353 /*
 354  * This is the global environment of the parser. This information is
 355  * persistent for main-items. The global environment can be saved and
 356  * restored with PUSH/POP statements.
 357  */
 358
 359 struct hid_global {
 360         unsigned usage_page;
 361         __s32    logical_minimum;
 362         __s32    logical_maximum;
 363         __s32    physical_minimum;
 364         __s32    physical_maximum;
 365         __s32    unit_exponent;
 366         unsigned unit;
 367         unsigned report_id;
 368         unsigned report_size;
 369         unsigned report_count;
 370 };
 371
 372 /*
 373  * This is the local environment. It is persistent up the next main-item.
 374  */
 375
 376 #define HID_MAX_USAGES                  12288
 377 #define HID_DEFAULT_NUM_COLLECTIONS     16
 378
 379 struct hid_local {
 380         unsigned usage[HID_MAX_USAGES]; /* usage array */
 381         unsigned collection_index[HID_MAX_USAGES]; /* collection index array */
 382         unsigned usage_index;
 383         unsigned usage_minimum;
 384         unsigned delimiter_depth;
 385         unsigned delimiter_branch;
 386 };
 387
 388 /*
 389  * This is the collection stack. We climb up the stack to determine
 390  * application and function of each field.
 391  */
 392
 393 struct hid_collection {
 394         unsigned type;
 395         unsigned usage;
 396         unsigned level;
 397 };
 398
 399 struct hid_usage {
 400         unsigned  hid;                  /* hid usage code */
 401         unsigned  collection_index;     /* index into collection array */
 402         unsigned  usage_index;          /* index into usage array */
 403         /* hidinput data */
 404         __u16     code;                 /* input driver code */
 405         __u8      type;                 /* input driver type */
 406         __s8      hat_min;              /* hat switch fun */
 407         __s8      hat_max;              /* ditto */
 408         __s8      hat_dir;              /* ditto */
 409 };
 410
 411 struct hid_input;
 412
 413 struct hid_field {
 414         unsigned  physical;             /* physical usage for this field */
 415         unsigned  logical;              /* logical usage for this field */
 416         unsigned  application;          /* application usage for this field */
 417         struct hid_usage *usage;        /* usage table for this function */
 418         unsigned  maxusage;             /* maximum usage index */
 419         unsigned  flags;                /* main-item flags (i.e. volatile,array,constant) */
 420         unsigned  report_offset;        /* bit offset in the report */
 421         unsigned  report_size;          /* size of this field in the report */
 422         unsigned  report_count;         /* number of this field in the report */
 423         unsigned  report_type;          /* (input,output,feature) */
 424         __s32    *value;                /* last known value(s) */
 425         __s32     logical_minimum;
 426         __s32     logical_maximum;
 427         __s32     physical_minimum;
 428         __s32     physical_maximum;
 429         __s32     unit_exponent;
 430         unsigned  unit;
 431         struct hid_report *report;      /* associated report */
 432         unsigned index;                 /* index into report->field[] */
 433         /* hidinput data */
 434         struct hid_input *hidinput;     /* associated input structure */
 435         __u16 dpad;                     /* dpad input code */
 436 };
 437
 438 #define HID_MAX_FIELDS 256
 439
 440 struct hid_report {
 441         struct list_head list;
 442         unsigned id;                                    /* id of this report */
 443         unsigned type;                                  /* report type */
 444         struct hid_field *field[HID_MAX_FIELDS];        /* fields of the report */
 445         unsigned maxfield;                              /* maximum valid field index */
 446         unsigned size;                                  /* size of the report (bits) */
 447         struct hid_device *device;                      /* associated device */
 448 };
 449
 450 #define HID_MAX_IDS 256
 451
 452 struct hid_report_enum {
 453         unsigned numbered;
 454         struct list_head report_list;
 455         struct hid_report *report_id_hash[HID_MAX_IDS];
 456 };
 457
 458 #define HID_MIN_BUFFER_SIZE     64              /* make sure there is at least a packet size of space */
 459 #define HID_MAX_BUFFER_SIZE     4096            /* 4kb */
 460 #define HID_CONTROL_FIFO_SIZE   256             /* to init devices with >100 reports */
 461 #define HID_OUTPUT_FIFO_SIZE    64
 462
 463 struct hid_control_fifo {
 464         unsigned char dir;
 465         struct hid_report *report;
 466         char *raw_report;
 467 };
 468
 469 struct hid_output_fifo {
 470         struct hid_report *report;
 471         char *raw_report;
 472 };
 473
 474 #define HID_CLAIMED_INPUT       1
 475 #define HID_CLAIMED_HIDDEV      2
 476 #define HID_CLAIMED_HIDRAW      4
 477 #define HID_CLAIMED_DRIVER      8
 478
 479 #define HID_STAT_ADDED          1
 480 #define HID_STAT_PARSED         2
 481
 482 struct hid_input {
 483         struct list_head list;
 484         struct hid_report *report;
 485         struct input_dev *input;
 486         bool registered;
 487 };
 488
 489 enum hid_type {
 490         HID_TYPE_OTHER = 0,
 491         HID_TYPE_USBMOUSE,
 492         HID_TYPE_USBNONE
 493 };
 494
 495 struct hid_driver;
 496 struct hid_ll_driver;
 497
 498 struct hid_device {                                                     /* device report descriptor */
 499         __u8 *dev_rdesc;
 500         unsigned dev_rsize;
 501         __u8 *rdesc;
 502         unsigned rsize;
 503         struct hid_collection *collection;                              /* List of HID collections */
 504         unsigned collection_size;                                       /* Number of allocated hid_collections */
 505         unsigned maxcollection;                                         /* Number of parsed collections */
 506         unsigned maxapplication;                                        /* Number of applications */
 507         __u16 bus;                                                      /* BUS ID */
 508         __u16 group;                                                    /* Report group */
 509         __u32 vendor;                                                   /* Vendor ID */
 510         __u32 product;                                                  /* Product ID */
 511         __u32 version;                                                  /* HID version */
 512         enum hid_type type;                                             /* device type (mouse, kbd, ...) */
 513         unsigned country;                                               /* HID country */
 514         struct hid_report_enum report_enum[HID_REPORT_TYPES];
 515         struct work_struct led_work;                                    /* delayed LED worker */
 516
 517         struct semaphore driver_lock;                                   /* protects the current driver, except during input */
 518         struct semaphore driver_input_lock;                             /* protects the current driver */
 519         struct device dev;                                              /* device */
 520         struct hid_driver *driver;
 521         struct hid_ll_driver *ll_driver;
 522
 523 #ifdef CONFIG_HID_BATTERY_STRENGTH
 524         /*
 525          * Power supply information for HID devices which report
 526          * battery strength. power_supply was successfully registered if
 527          * battery is non-NULL.
 528          */
 529         struct power_supply *battery;
 530         __s32 battery_min;
 531         __s32 battery_max;
 532         __s32 battery_report_type;
 533         __s32 battery_report_id;
 534 #endif
 535
 536         unsigned int status;                                            /* see STAT flags above */
 537         unsigned claimed;                                               /* Claimed by hidinput, hiddev? */
 538         unsigned quirks;                                                /* Various quirks the device can pull on us */
 539         bool io_started;                                                /* Protected by driver_lock. If IO has started */
 540
 541         struct list_head inputs;                                        /* The list of inputs */
 542         void *hiddev;                                                   /* The hiddev structure */
 543         void *hidraw;
 544         int minor;                                                      /* Hiddev minor number */
 545
 546         int open;                                                       /* is the device open by anyone? */
 547         char name[128];                                                 /* Device name */
 548         char phys[64];                                                  /* Device physical location */
 549         char uniq[64];                                                  /* Device unique identifier (serial #) */
 550
 551         void *driver_data;
 552
 553         /* temporary hid_ff handling (until moved to the drivers) */
 554         int (*ff_init)(struct hid_device *);
 555
 556         /* hiddev event handler */
 557         int (*hiddev_connect)(struct hid_device *, unsigned int);
 558         void (*hiddev_disconnect)(struct hid_device *);
 559         void (*hiddev_hid_event) (struct hid_device *, struct hid_field *field,
 560                                   struct hid_usage *, __s32);
 561         void (*hiddev_report_event) (struct hid_device *, struct hid_report *);
 562
 563         /* debugging support via debugfs */
 564         unsigned short debug;
 565         struct dentry *debug_dir;
 566         struct dentry *debug_rdesc;
 567         struct dentry *debug_events;
 568         struct list_head debug_list;
 569         spinlock_t  debug_list_lock;
 570         wait_queue_head_t debug_wait;
 571 };
 572
 573 #define to_hid_device(pdev) \
 574         container_of(pdev, struct hid_device, dev)
 575
 576 static inline void *hid_get_drvdata(struct hid_device *hdev)
 577 {
 578         return dev_get_drvdata(&hdev->dev);
 579 }
 580
 581 static inline void hid_set_drvdata(struct hid_device *hdev, void *data)
 582 {
 583         dev_set_drvdata(&hdev->dev, data);
 584 }
 585
 586 #define HID_GLOBAL_STACK_SIZE 4
 587 #define HID_COLLECTION_STACK_SIZE 4
 588
 589 #define HID_SCAN_FLAG_MT_WIN_8                  BIT(0)
 590 #define HID_SCAN_FLAG_VENDOR_SPECIFIC           BIT(1)
 591 #define HID_SCAN_FLAG_GD_POINTER                BIT(2)
 592
 593 struct hid_parser {
 594         struct hid_global     global;
 595         struct hid_global     global_stack[HID_GLOBAL_STACK_SIZE];
 596         unsigned              global_stack_ptr;
 597         struct hid_local      local;
 598         unsigned              collection_stack[HID_COLLECTION_STACK_SIZE];
 599         unsigned              collection_stack_ptr;
 600         struct hid_device    *device;
 601         unsigned              scan_flags;
 602 };
 603
 604 struct hid_class_descriptor {
 605         __u8  bDescriptorType;
 606         __le16 wDescriptorLength;
 607 } __attribute__ ((packed));
 608
 609 struct hid_descriptor {
 610         __u8  bLength;
 611         __u8  bDescriptorType;
 612         __le16 bcdHID;
 613         __u8  bCountryCode;
 614         __u8  bNumDescriptors;
 615
 616         struct hid_class_descriptor desc[1];
 617 } __attribute__ ((packed));
 618
 619 #define HID_DEVICE(b, g, ven, prod)                                     \
 620         .bus = (b), .group = (g), .vendor = (ven), .product = (prod)
 621 #define HID_USB_DEVICE(ven, prod)                               \
 622         .bus = BUS_USB, .vendor = (ven), .product = (prod)
 623 #define HID_BLUETOOTH_DEVICE(ven, prod)                                 \
 624         .bus = BUS_BLUETOOTH, .vendor = (ven), .product = (prod)
 625 #define HID_I2C_DEVICE(ven, prod)                               \
 626         .bus = BUS_I2C, .vendor = (ven), .product = (prod)
 627
 628 #define HID_REPORT_ID(rep) \
 629         .report_type = (rep)
 630 #define HID_USAGE_ID(uhid, utype, ucode) \
 631         .usage_hid = (uhid), .usage_type = (utype), .usage_code = (ucode)
 632 /* we don't want to catch types and codes equal to 0 */
 633 #define HID_TERMINATOR          (HID_ANY_ID - 1)
 634
 635 struct hid_report_id {
 636         __u32 report_type;
 637 };
 638 struct hid_usage_id {
 639         __u32 usage_hid;
 640         __u32 usage_type;
 641         __u32 usage_code;
 642 };
 643
 644 /**
 645  * struct hid_driver
 646  * @name: driver name (e.g. "Footech_bar-wheel")
 647  * @id_table: which devices is this driver for (must be non-NULL for probe
 648  *            to be called)
 649  * @dyn_list: list of dynamically added device ids
 650  * @dyn_lock: lock protecting @dyn_list
 651  * @probe: new device inserted
 652  * @remove: device removed (NULL if not a hot-plug capable driver)
 653  * @report_table: on which reports to call raw_event (NULL means all)
 654  * @raw_event: if report in report_table, this hook is called (NULL means nop)
 655  * @usage_table: on which events to call event (NULL means all)
 656  * @event: if usage in usage_table, this hook is called (NULL means nop)
 657  * @report: this hook is called after parsing a report (NULL means nop)
 658  * @report_fixup: called before report descriptor parsing (NULL means nop)
 659  * @input_mapping: invoked on input registering before mapping an usage
 660  * @input_mapped: invoked on input registering after mapping an usage
 661  * @input_configured: invoked just before the device is registered
 662  * @feature_mapping: invoked on feature registering
 663  * @suspend: invoked on suspend (NULL means nop)
 664  * @resume: invoked on resume if device was not reset (NULL means nop)
 665  * @reset_resume: invoked on resume if device was reset (NULL means nop)
 666  *
 667  * probe should return -errno on error, or 0 on success. During probe,
 668  * input will not be passed to raw_event unless hid_device_io_start is
 669  * called.
 670  *
 671  * raw_event and event should return 0 on no action performed, 1 when no
 672  * further processing should be done and negative on error
 673  *
 674  * input_mapping shall return a negative value to completely ignore this usage
 675  * (e.g. doubled or invalid usage), zero to continue with parsing of this
 676  * usage by generic code (no special handling needed) or positive to skip
 677  * generic parsing (needed special handling which was done in the hook already)
 678  * input_mapped shall return negative to inform the layer that this usage
 679  * should not be considered for further processing or zero to notify that
 680  * no processing was performed and should be done in a generic manner
 681  * Both these functions may be NULL which means the same behavior as returning
 682  * zero from them.
 683  */
 684 struct hid_driver {
 685         char *name;
 686         const struct hid_device_id *id_table;
 687
 688         struct list_head dyn_list;
 689         spinlock_t dyn_lock;
 690
 691         int (*probe)(struct hid_device *dev, const struct hid_device_id *id);
 692         void (*remove)(struct hid_device *dev);
 693
 694         const struct hid_report_id *report_table;
 695         int (*raw_event)(struct hid_device *hdev, struct hid_report *report,
 696                         u8 *data, int size);
 697         const struct hid_usage_id *usage_table;
 698         int (*event)(struct hid_device *hdev, struct hid_field *field,
 699                         struct hid_usage *usage, __s32 value);
 700         void (*report)(struct hid_device *hdev, struct hid_report *report);
 701
 702         __u8 *(*report_fixup)(struct hid_device *hdev, __u8 *buf,
 703                         unsigned int *size);
 704
 705         int (*input_mapping)(struct hid_device *hdev,
 706                         struct hid_input *hidinput, struct hid_field *field,
 707                         struct hid_usage *usage, unsigned long **bit, int *max);
 708         int (*input_mapped)(struct hid_device *hdev,
 709                         struct hid_input *hidinput, struct hid_field *field,
 710                         struct hid_usage *usage, unsigned long **bit, int *max);
 711         int (*input_configured)(struct hid_device *hdev,
 712                                 struct hid_input *hidinput);
 713         void (*feature_mapping)(struct hid_device *hdev,
 714                         struct hid_field *field,
 715                         struct hid_usage *usage);
 716 #ifdef CONFIG_PM
 717         int (*suspend)(struct hid_device *hdev, pm_message_t message);
 718         int (*resume)(struct hid_device *hdev);
 719         int (*reset_resume)(struct hid_device *hdev);
 720 #endif
 721 /* private: */
 722         struct device_driver driver;
 723 };
 724
 725 #define to_hid_driver(pdrv) \
 726         container_of(pdrv, struct hid_driver, driver)
 727
 728 /**
 729  * hid_ll_driver - low level driver callbacks
 730  * @start: called on probe to start the device
 731  * @stop: called on remove
 732  * @open: called by input layer on open
 733  * @close: called by input layer on close
 734  * @parse: this method is called only once to parse the device data,
 735  *         shouldn't allocate anything to not leak memory
 736  * @request: send report request to device (e.g. feature report)
 737  * @wait: wait for buffered io to complete (send/recv reports)
 738  * @raw_request: send raw report request to device (e.g. feature report)
 739  * @output_report: send output report to device
 740  * @idle: send idle request to device
 741  */
 742 struct hid_ll_driver {
 743         int (*start)(struct hid_device *hdev);
 744         void (*stop)(struct hid_device *hdev);
 745
 746         int (*open)(struct hid_device *hdev);
 747         void (*close)(struct hid_device *hdev);
 748
 749         int (*power)(struct hid_device *hdev, int level);
 750
 751         int (*parse)(struct hid_device *hdev);
 752
 753         void (*request)(struct hid_device *hdev,
 754                         struct hid_report *report, int reqtype);
 755
 756         int (*wait)(struct hid_device *hdev);
 757
 758         int (*raw_request) (struct hid_device *hdev, unsigned char reportnum,
 759                             __u8 *buf, size_t len, unsigned char rtype,
 760                             int reqtype);
 761
 762         int (*output_report) (struct hid_device *hdev, __u8 *buf, size_t len);
 763
 764         int (*idle)(struct hid_device *hdev, int report, int idle, int reqtype);
 765 };
 766
 767 #define PM_HINT_FULLON  1<<5
 768 #define PM_HINT_NORMAL  1<<1
 769
 770 /* Applications from HID Usage Tables 4/8/99 Version 1.1 */
 771 /* We ignore a few input applications that are not widely used */
 772 #define IS_INPUT_APPLICATION(a) (((a >= 0x00010000) && (a <= 0x00010008)) || (a == 0x00010080) || (a == 0x000c0001) || ((a >= 0x000d0002) && (a <= 0x000d0006)))
 773
 774 /* HID core API */
 775
 776 extern int hid_debug;
 777
 778 extern bool hid_ignore(struct hid_device *);
 779 extern int hid_add_device(struct hid_device *);
 780 extern void hid_destroy_device(struct hid_device *);
 781
 782 extern int __must_check __hid_register_driver(struct hid_driver *,
 783                 struct module *, const char *mod_name);
 784
 785 /* use a define to avoid include chaining to get THIS_MODULE & friends */
 786 #define hid_register_driver(driver) \
 787         __hid_register_driver(driver, THIS_MODULE, KBUILD_MODNAME)
 788
 789 extern void hid_unregister_driver(struct hid_driver *);
 790
 791 /**
 792  * module_hid_driver() - Helper macro for registering a HID driver
 793  * @__hid_driver: hid_driver struct
 794  *
 795  * Helper macro for HID drivers which do not do anything special in module
 796  * init/exit. This eliminates a lot of boilerplate. Each module may only
 797  * use this macro once, and calling it replaces module_init() and module_exit()
 798  */
 799 #define module_hid_driver(__hid_driver) \
 800         module_driver(__hid_driver, hid_register_driver, \
 801                       hid_unregister_driver)
 802
 803 extern void hidinput_hid_event(struct hid_device *, struct hid_field *, struct hid_usage *, __s32);
 804 extern void hidinput_report_event(struct hid_device *hid, struct hid_report *report);
 805 extern int hidinput_connect(struct hid_device *hid, unsigned int force);
 806 extern void hidinput_disconnect(struct hid_device *);
 807
 808 int hid_set_field(struct hid_field *, unsigned, __s32);
 809 int hid_input_report(struct hid_device *, int type, u8 *, int, int);
 810 int hidinput_find_field(struct hid_device *hid, unsigned int type, unsigned int code, struct hid_field **field);
 811 struct hid_field *hidinput_get_led_field(struct hid_device *hid);
 812 unsigned int hidinput_count_leds(struct hid_device *hid);
 813 __s32 hidinput_calc_abs_res(const struct hid_field *field, __u16 code);
 814 void hid_output_report(struct hid_report *report, __u8 *data);
 815 void __hid_request(struct hid_device *hid, struct hid_report *rep, int reqtype);
 816 u8 *hid_alloc_report_buf(struct hid_report *report, gfp_t flags);
 817 struct hid_device *hid_allocate_device(void);
 818 struct hid_report *hid_register_report(struct hid_device *device, unsigned type, unsigned id);
 819 int hid_parse_report(struct hid_device *hid, __u8 *start, unsigned size);
 820 struct hid_report *hid_validate_values(struct hid_device *hid,
 821                                        unsigned int type, unsigned int id,
 822                                        unsigned int field_index,
 823                                        unsigned int report_counts);
 824 int hid_open_report(struct hid_device *device);
 825 int hid_check_keys_pressed(struct hid_device *hid);
 826 int hid_connect(struct hid_device *hid, unsigned int connect_mask);
 827 void hid_disconnect(struct hid_device *hid);
 828 const struct hid_device_id *hid_match_id(struct hid_device *hdev,
 829                                          const struct hid_device_id *id);
 830 s32 hid_snto32(__u32 value, unsigned n);
 831 __u32 hid_field_extract(const struct hid_device *hid, __u8 *report,
 832                      unsigned offset, unsigned n);
 833
 834 /**
 835  * hid_device_io_start - enable HID input during probe, remove
 836  *
 837  * @hid - the device
 838  *
 839  * This should only be called during probe or remove and only be
 840  * called by the thread calling probe or remove. It will allow
 841  * incoming packets to be delivered to the driver.
 842  */
 843 static inline void hid_device_io_start(struct hid_device *hid) {
 844         if (hid->io_started) {
 845                 dev_warn(&hid->dev, "io already started\n");
 846                 return;
 847         }
 848         hid->io_started = true;
 849         up(&hid->driver_input_lock);
 850 }
 851
 852 /**
 853  * hid_device_io_stop - disable HID input during probe, remove
 854  *
 855  * @hid - the device
 856  *
 857  * Should only be called after hid_device_io_start. It will prevent
 858  * incoming packets from going to the driver for the duration of
 859  * probe, remove. If called during probe, packets will still go to the
 860  * driver after probe is complete. This function should only be called
 861  * by the thread calling probe or remove.
 862  */
 863 static inline void hid_device_io_stop(struct hid_device *hid) {
 864         if (!hid->io_started) {
 865                 dev_warn(&hid->dev, "io already stopped\n");
 866                 return;
 867         }
 868         hid->io_started = false;
 869         down(&hid->driver_input_lock);
 870 }
 871
 872 /**
 873  * hid_map_usage - map usage input bits
 874  *
 875  * @hidinput: hidinput which we are interested in
 876  * @usage: usage to fill in
 877  * @bit: pointer to input->{}bit (out parameter)
 878  * @max: maximal valid usage->code to consider later (out parameter)
 879  * @type: input event type (EV_KEY, EV_REL, ...)
 880  * @c: code which corresponds to this usage and type
 881  */
 882 static inline void hid_map_usage(struct hid_input *hidinput,
 883                 struct hid_usage *usage, unsigned long **bit, int *max,
 884                 __u8 type, __u16 c)
 885 {
 886         struct input_dev *input = hidinput->input;
 887
 888         usage->type = type;
 889         usage->code = c;
 890
 891         switch (type) {
 892         case EV_ABS:
 893                 *bit = input->absbit;
 894                 *max = ABS_MAX;
 895                 break;
 896         case EV_REL:
 897                 *bit = input->relbit;
 898                 *max = REL_MAX;
 899                 break;
 900         case EV_KEY:
 901                 *bit = input->keybit;
 902                 *max = KEY_MAX;
 903                 break;
 904         case EV_LED:
 905                 *bit = input->ledbit;
 906                 *max = LED_MAX;
 907                 break;
 908         }
 909 }
 910
 911 /**
 912  * hid_map_usage_clear - map usage input bits and clear the input bit
 913  *
 914  * The same as hid_map_usage, except the @c bit is also cleared in supported
 915  * bits (@bit).
 916  */
 917 static inline void hid_map_usage_clear(struct hid_input *hidinput,
 918                 struct hid_usage *usage, unsigned long **bit, int *max,
 919                 __u8 type, __u16 c)
 920 {
 921         hid_map_usage(hidinput, usage, bit, max, type, c);
 922         clear_bit(c, *bit);
 923 }
 924
 925 /**
 926  * hid_parse - parse HW reports
 927  *
 928  * @hdev: hid device
 929  *
 930  * Call this from probe after you set up the device (if needed). Your
 931  * report_fixup will be called (if non-NULL) after reading raw report from
 932  * device before passing it to hid layer for real parsing.
 933  */
 934 static inline int __must_check hid_parse(struct hid_device *hdev)
 935 {
 936         return hid_open_report(hdev);
 937 }
 938
 939 /**
 940  * hid_hw_start - start underlaying HW
 941  *
 942  * @hdev: hid device
 943  * @connect_mask: which outputs to connect, see HID_CONNECT_*
 944  *
 945  * Call this in probe function *after* hid_parse. This will setup HW buffers
 946  * and start the device (if not deffered to device open). hid_hw_stop must be
 947  * called if this was successful.
 948  */
 949 static inline int __must_check hid_hw_start(struct hid_device *hdev,
 950                 unsigned int connect_mask)
 951 {
 952         int ret = hdev->ll_driver->start(hdev);
 953         if (ret || !connect_mask)
 954                 return ret;
 955         ret = hid_connect(hdev, connect_mask);
 956         if (ret)
 957                 hdev->ll_driver->stop(hdev);
 958         return ret;
 959 }
 960
 961 /**
 962  * hid_hw_stop - stop underlaying HW
 963  *
 964  * @hdev: hid device
 965  *
 966  * This is usually called from remove function or from probe when something
 967  * failed and hid_hw_start was called already.
 968  */
 969 static inline void hid_hw_stop(struct hid_device *hdev)
 970 {
 971         hid_disconnect(hdev);
 972         hdev->ll_driver->stop(hdev);
 973 }
 974
 975 /**
 976  * hid_hw_open - signal underlaying HW to start delivering events
 977  *
 978  * @hdev: hid device
 979  *
 980  * Tell underlying HW to start delivering events from the device.
 981  * This function should be called sometime after successful call
 982  * to hid_hiw_start().
 983  */
 984 static inline int __must_check hid_hw_open(struct hid_device *hdev)
 985 {
 986         return hdev->ll_driver->open(hdev);
 987 }
 988
 989 /**
 990  * hid_hw_close - signal underlaying HW to stop delivering events
 991  *
 992  * @hdev: hid device
 993  *
 994  * This function indicates that we are not interested in the events
 995  * from this device anymore. Delivery of events may or may not stop,
 996  * depending on the number of users still outstanding.
 997  */
 998 static inline void hid_hw_close(struct hid_device *hdev)
 999 {
1000         hdev->ll_driver->close(hdev);
1001 }
1002
1003 /**
1004  * hid_hw_power - requests underlying HW to go into given power mode
1005  *
1006  * @hdev: hid device
1007  * @level: requested power level (one of %PM_HINT_* defines)
1008  *
1009  * This function requests underlying hardware to enter requested power
1010  * mode.
1011  */
1012
1013 static inline int hid_hw_power(struct hid_device *hdev, int level)
1014 {
1015         return hdev->ll_driver->power ? hdev->ll_driver->power(hdev, level) : 0;
1016 }
1017
1018
1019 /**
1020  * hid_hw_request - send report request to device
1021  *
1022  * @hdev: hid device
1023  * @report: report to send
1024  * @reqtype: hid request type
1025  */
1026 static inline void hid_hw_request(struct hid_device *hdev,
1027                                   struct hid_report *report, int reqtype)
1028 {
1029         if (hdev->ll_driver->request)
1030                 return hdev->ll_driver->request(hdev, report, reqtype);
1031
1032         __hid_request(hdev, report, reqtype);
1033 }
1034
1035 /**
1036  * hid_hw_raw_request - send report request to device
1037  *
1038  * @hdev: hid device
1039  * @reportnum: report ID
1040  * @buf: in/out data to transfer
1041  * @len: length of buf
1042  * @rtype: HID report type
1043  * @reqtype: HID_REQ_GET_REPORT or HID_REQ_SET_REPORT
1044  *
1045  * @return: count of data transfered, negative if error
1046  *
1047  * Same behavior as hid_hw_request, but with raw buffers instead.
1048  */
1049 static inline int hid_hw_raw_request(struct hid_device *hdev,
1050                                   unsigned char reportnum, __u8 *buf,
1051                                   size_t len, unsigned char rtype, int reqtype)
1052 {
1053         if (len < 1 || len > HID_MAX_BUFFER_SIZE || !buf)
1054                 return -EINVAL;
1055
1056         return hdev->ll_driver->raw_request(hdev, reportnum, buf, len,
1057                                                     rtype, reqtype);
1058 }
1059
1060 /**
1061  * hid_hw_output_report - send output report to device
1062  *
1063  * @hdev: hid device
1064  * @buf: raw data to transfer
1065  * @len: length of buf
1066  *
1067  * @return: count of data transfered, negative if error
1068  */
1069 static inline int hid_hw_output_report(struct hid_device *hdev, __u8 *buf,
1070                                         size_t len)
1071 {
1072         if (len < 1 || len > HID_MAX_BUFFER_SIZE || !buf)
1073                 return -EINVAL;
1074
1075         if (hdev->ll_driver->output_report)
1076                 return hdev->ll_driver->output_report(hdev, buf, len);
1077
1078         return -ENOSYS;
1079 }
1080
1081 /**
1082  * hid_hw_idle - send idle request to device
1083  *
1084  * @hdev: hid device
1085  * @report: report to control
1086  * @idle: idle state
1087  * @reqtype: hid request type
1088  */
1089 static inline int hid_hw_idle(struct hid_device *hdev, int report, int idle,
1090                 int reqtype)
1091 {
1092         if (hdev->ll_driver->idle)
1093                 return hdev->ll_driver->idle(hdev, report, idle, reqtype);
1094
1095         return 0;
1096 }
1097
1098 /**
1099  * hid_hw_wait - wait for buffered io to complete
1100  *
1101  * @hdev: hid device
1102  */
1103 static inline void hid_hw_wait(struct hid_device *hdev)
1104 {
1105         if (hdev->ll_driver->wait)
1106                 hdev->ll_driver->wait(hdev);
1107 }
1108
1109 /**
1110  * hid_report_len - calculate the report length
1111  *
1112  * @report: the report we want to know the length
1113  */
1114 static inline int hid_report_len(struct hid_report *report)
1115 {
1116         /* equivalent to DIV_ROUND_UP(report->size, 8) + !!(report->id > 0) */
1117         return ((report->size - 1) >> 3) + 1 + (report->id > 0);
1118 }
1119
1120 int hid_report_raw_event(struct hid_device *hid, int type, u8 *data, int size,
1121                 int interrupt);
1122
1123 /* HID quirks API */
1124 u32 usbhid_lookup_quirk(const u16 idVendor, const u16 idProduct);
1125 int usbhid_quirks_init(char **quirks_param);
1126 void usbhid_quirks_exit(void);
1127
1128 #ifdef CONFIG_HID_PID
1129 int hid_pidff_init(struct hid_device *hid);
1130 #else
1131 #define hid_pidff_init NULL
1132 #endif
1133
1134 #define dbg_hid(format, arg...)                                         \
1135 do {                                                                    \
1136         if (hid_debug)                                                  \
1137                 printk(KERN_DEBUG "%s: " format, __FILE__, ##arg);      \
1138 } while (0)
1139
1140 #define hid_printk(level, hid, fmt, arg...)             \
1141         dev_printk(level, &(hid)->dev, fmt, ##arg)
1142 #define hid_emerg(hid, fmt, arg...)                     \
1143         dev_emerg(&(hid)->dev, fmt, ##arg)
1144 #define hid_crit(hid, fmt, arg...)                      \
1145         dev_crit(&(hid)->dev, fmt, ##arg)
1146 #define hid_alert(hid, fmt, arg...)                     \
1147         dev_alert(&(hid)->dev, fmt, ##arg)
1148 #define hid_err(hid, fmt, arg...)                       \
1149         dev_err(&(hid)->dev, fmt, ##arg)
1150 #define hid_notice(hid, fmt, arg...)                    \
1151         dev_notice(&(hid)->dev, fmt, ##arg)
1152 #define hid_warn(hid, fmt, arg...)                      \
1153         dev_warn(&(hid)->dev, fmt, ##arg)
1154 #define hid_info(hid, fmt, arg...)                      \
1155         dev_info(&(hid)->dev, fmt, ##arg)
1156 #define hid_dbg(hid, fmt, arg...)                       \
1157         dev_dbg(&(hid)->dev, fmt, ##arg)
1158
1159 #endif