1 /* SPDX-License-Identifier: GPL-2.0-or-later */ 2 /* 3 * Copyright (c) 1999 Andreas Gal 4 * Copyright (c) 2000-2001 Vojtech Pavlik 5 * Copyright (c) 2006-2007 Jiri Kosina 6 */ 7 /* 8 * 9 * Should you need to contact me, the author, you can do so either by 10 * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail: 11 * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic 12 */ 13 #ifndef __HID_H 14 #define __HID_H 15 16 17 #include <linux/bitops.h> 18 #include <linux/types.h> 19 #include <linux/slab.h> 20 #include <linux/list.h> 21 #include <linux/mod_devicetable.h> /* hid_device_id */ 22 #include <linux/timer.h> 23 #include <linux/workqueue.h> 24 #include <linux/input.h> 25 #include <linux/semaphore.h> 26 #include <linux/mutex.h> 27 #include <linux/power_supply.h> 28 #include <uapi/linux/hid.h> 29 30 /* 31 * We parse each description item into this structure. Short items data 32 * values are expanded to 32-bit signed int, long items contain a pointer 33 * into the data area. 34 */ 35 36 struct hid_item { 37 unsigned format; 38 __u8 size; 39 __u8 type; 40 __u8 tag; 41 union { 42 __u8 u8; 43 __s8 s8; 44 __u16 u16; 45 __s16 s16; 46 __u32 u32; 47 __s32 s32; 48 __u8 *longdata; 49 } data; 50 }; 51 52 /* 53 * HID report item format 54 */ 55 56 #define HID_ITEM_FORMAT_SHORT 0 57 #define HID_ITEM_FORMAT_LONG 1 58 59 /* 60 * Special tag indicating long items 61 */ 62 63 #define HID_ITEM_TAG_LONG 15 64 65 /* 66 * HID report descriptor item type (prefix bit 2,3) 67 */ 68 69 #define HID_ITEM_TYPE_MAIN 0 70 #define HID_ITEM_TYPE_GLOBAL 1 71 #define HID_ITEM_TYPE_LOCAL 2 72 #define HID_ITEM_TYPE_RESERVED 3 73 74 /* 75 * HID report descriptor main item tags 76 */ 77 78 #define HID_MAIN_ITEM_TAG_INPUT 8 79 #define HID_MAIN_ITEM_TAG_OUTPUT 9 80 #define HID_MAIN_ITEM_TAG_FEATURE 11 81 #define HID_MAIN_ITEM_TAG_BEGIN_COLLECTION 10 82 #define HID_MAIN_ITEM_TAG_END_COLLECTION 12 83 84 /* 85 * HID report descriptor main item contents 86 */ 87 88 #define HID_MAIN_ITEM_CONSTANT 0x001 89 #define HID_MAIN_ITEM_VARIABLE 0x002 90 #define HID_MAIN_ITEM_RELATIVE 0x004 91 #define HID_MAIN_ITEM_WRAP 0x008 92 #define HID_MAIN_ITEM_NONLINEAR 0x010 93 #define HID_MAIN_ITEM_NO_PREFERRED 0x020 94 #define HID_MAIN_ITEM_NULL_STATE 0x040 95 #define HID_MAIN_ITEM_VOLATILE 0x080 96 #define HID_MAIN_ITEM_BUFFERED_BYTE 0x100 97 98 /* 99 * HID report descriptor collection item types 100 */ 101 102 #define HID_COLLECTION_PHYSICAL 0 103 #define HID_COLLECTION_APPLICATION 1 104 #define HID_COLLECTION_LOGICAL 2 105 106 /* 107 * HID report descriptor global item tags 108 */ 109 110 #define HID_GLOBAL_ITEM_TAG_USAGE_PAGE 0 111 #define HID_GLOBAL_ITEM_TAG_LOGICAL_MINIMUM 1 112 #define HID_GLOBAL_ITEM_TAG_LOGICAL_MAXIMUM 2 113 #define HID_GLOBAL_ITEM_TAG_PHYSICAL_MINIMUM 3 114 #define HID_GLOBAL_ITEM_TAG_PHYSICAL_MAXIMUM 4 115 #define HID_GLOBAL_ITEM_TAG_UNIT_EXPONENT 5 116 #define HID_GLOBAL_ITEM_TAG_UNIT 6 117 #define HID_GLOBAL_ITEM_TAG_REPORT_SIZE 7 118 #define HID_GLOBAL_ITEM_TAG_REPORT_ID 8 119 #define HID_GLOBAL_ITEM_TAG_REPORT_COUNT 9 120 #define HID_GLOBAL_ITEM_TAG_PUSH 10 121 #define HID_GLOBAL_ITEM_TAG_POP 11 122 123 /* 124 * HID report descriptor local item tags 125 */ 126 127 #define HID_LOCAL_ITEM_TAG_USAGE 0 128 #define HID_LOCAL_ITEM_TAG_USAGE_MINIMUM 1 129 #define HID_LOCAL_ITEM_TAG_USAGE_MAXIMUM 2 130 #define HID_LOCAL_ITEM_TAG_DESIGNATOR_INDEX 3 131 #define HID_LOCAL_ITEM_TAG_DESIGNATOR_MINIMUM 4 132 #define HID_LOCAL_ITEM_TAG_DESIGNATOR_MAXIMUM 5 133 #define HID_LOCAL_ITEM_TAG_STRING_INDEX 7 134 #define HID_LOCAL_ITEM_TAG_STRING_MINIMUM 8 135 #define HID_LOCAL_ITEM_TAG_STRING_MAXIMUM 9 136 #define HID_LOCAL_ITEM_TAG_DELIMITER 10 137 138 /* 139 * HID usage tables 140 */ 141 142 #define HID_USAGE_PAGE 0xffff0000 143 144 #define HID_UP_UNDEFINED 0x00000000 145 #define HID_UP_GENDESK 0x00010000 146 #define HID_UP_SIMULATION 0x00020000 147 #define HID_UP_GENDEVCTRLS 0x00060000 148 #define HID_UP_KEYBOARD 0x00070000 149 #define HID_UP_LED 0x00080000 150 #define HID_UP_BUTTON 0x00090000 151 #define HID_UP_ORDINAL 0x000a0000 152 #define HID_UP_TELEPHONY 0x000b0000 153 #define HID_UP_CONSUMER 0x000c0000 154 #define HID_UP_DIGITIZER 0x000d0000 155 #define HID_UP_PID 0x000f0000 156 #define HID_UP_HPVENDOR 0xff7f0000 157 #define HID_UP_HPVENDOR2 0xff010000 158 #define HID_UP_MSVENDOR 0xff000000 159 #define HID_UP_CUSTOM 0x00ff0000 160 #define HID_UP_LOGIVENDOR 0xffbc0000 161 #define HID_UP_LOGIVENDOR2 0xff090000 162 #define HID_UP_LOGIVENDOR3 0xff430000 163 #define HID_UP_LNVENDOR 0xffa00000 164 #define HID_UP_SENSOR 0x00200000 165 #define HID_UP_ASUSVENDOR 0xff310000 166 167 #define HID_USAGE 0x0000ffff 168 169 #define HID_GD_POINTER 0x00010001 170 #define HID_GD_MOUSE 0x00010002 171 #define HID_GD_JOYSTICK 0x00010004 172 #define HID_GD_GAMEPAD 0x00010005 173 #define HID_GD_KEYBOARD 0x00010006 174 #define HID_GD_KEYPAD 0x00010007 175 #define HID_GD_MULTIAXIS 0x00010008 176 /* 177 * Microsoft Win8 Wireless Radio Controls extensions CA, see: 178 * http://www.usb.org/developers/hidpage/HUTRR40RadioHIDUsagesFinal.pdf 179 */ 180 #define HID_GD_WIRELESS_RADIO_CTLS 0x0001000c 181 /* 182 * System Multi-Axis, see: 183 * http://www.usb.org/developers/hidpage/HUTRR62_-_Generic_Desktop_CA_for_System_Multi-Axis_Controllers.txt 184 */ 185 #define HID_GD_SYSTEM_MULTIAXIS 0x0001000e 186 187 #define HID_GD_X 0x00010030 188 #define HID_GD_Y 0x00010031 189 #define HID_GD_Z 0x00010032 190 #define HID_GD_RX 0x00010033 191 #define HID_GD_RY 0x00010034 192 #define HID_GD_RZ 0x00010035 193 #define HID_GD_SLIDER 0x00010036 194 #define HID_GD_DIAL 0x00010037 195 #define HID_GD_WHEEL 0x00010038 196 #define HID_GD_HATSWITCH 0x00010039 197 #define HID_GD_BUFFER 0x0001003a 198 #define HID_GD_BYTECOUNT 0x0001003b 199 #define HID_GD_MOTION 0x0001003c 200 #define HID_GD_START 0x0001003d 201 #define HID_GD_SELECT 0x0001003e 202 #define HID_GD_VX 0x00010040 203 #define HID_GD_VY 0x00010041 204 #define HID_GD_VZ 0x00010042 205 #define HID_GD_VBRX 0x00010043 206 #define HID_GD_VBRY 0x00010044 207 #define HID_GD_VBRZ 0x00010045 208 #define HID_GD_VNO 0x00010046 209 #define HID_GD_FEATURE 0x00010047 210 #define HID_GD_RESOLUTION_MULTIPLIER 0x00010048 211 #define HID_GD_SYSTEM_CONTROL 0x00010080 212 #define HID_GD_UP 0x00010090 213 #define HID_GD_DOWN 0x00010091 214 #define HID_GD_RIGHT 0x00010092 215 #define HID_GD_LEFT 0x00010093 216 /* Microsoft Win8 Wireless Radio Controls CA usage codes */ 217 #define HID_GD_RFKILL_BTN 0x000100c6 218 #define HID_GD_RFKILL_LED 0x000100c7 219 #define HID_GD_RFKILL_SWITCH 0x000100c8 220 221 #define HID_DC_BATTERYSTRENGTH 0x00060020 222 223 #define HID_CP_CONSUMER_CONTROL 0x000c0001 224 #define HID_CP_AC_PAN 0x000c0238 225 226 #define HID_DG_DIGITIZER 0x000d0001 227 #define HID_DG_PEN 0x000d0002 228 #define HID_DG_LIGHTPEN 0x000d0003 229 #define HID_DG_TOUCHSCREEN 0x000d0004 230 #define HID_DG_TOUCHPAD 0x000d0005 231 #define HID_DG_WHITEBOARD 0x000d0006 232 #define HID_DG_STYLUS 0x000d0020 233 #define HID_DG_PUCK 0x000d0021 234 #define HID_DG_FINGER 0x000d0022 235 #define HID_DG_TIPPRESSURE 0x000d0030 236 #define HID_DG_BARRELPRESSURE 0x000d0031 237 #define HID_DG_INRANGE 0x000d0032 238 #define HID_DG_TOUCH 0x000d0033 239 #define HID_DG_UNTOUCH 0x000d0034 240 #define HID_DG_TAP 0x000d0035 241 #define HID_DG_TABLETFUNCTIONKEY 0x000d0039 242 #define HID_DG_PROGRAMCHANGEKEY 0x000d003a 243 #define HID_DG_BATTERYSTRENGTH 0x000d003b 244 #define HID_DG_INVERT 0x000d003c 245 #define HID_DG_TILT_X 0x000d003d 246 #define HID_DG_TILT_Y 0x000d003e 247 #define HID_DG_TWIST 0x000d0041 248 #define HID_DG_TIPSWITCH 0x000d0042 249 #define HID_DG_TIPSWITCH2 0x000d0043 250 #define HID_DG_BARRELSWITCH 0x000d0044 251 #define HID_DG_ERASER 0x000d0045 252 #define HID_DG_TABLETPICK 0x000d0046 253 254 #define HID_CP_CONSUMERCONTROL 0x000c0001 255 #define HID_CP_NUMERICKEYPAD 0x000c0002 256 #define HID_CP_PROGRAMMABLEBUTTONS 0x000c0003 257 #define HID_CP_MICROPHONE 0x000c0004 258 #define HID_CP_HEADPHONE 0x000c0005 259 #define HID_CP_GRAPHICEQUALIZER 0x000c0006 260 #define HID_CP_FUNCTIONBUTTONS 0x000c0036 261 #define HID_CP_SELECTION 0x000c0080 262 #define HID_CP_MEDIASELECTION 0x000c0087 263 #define HID_CP_SELECTDISC 0x000c00ba 264 #define HID_CP_PLAYBACKSPEED 0x000c00f1 265 #define HID_CP_PROXIMITY 0x000c0109 266 #define HID_CP_SPEAKERSYSTEM 0x000c0160 267 #define HID_CP_CHANNELLEFT 0x000c0161 268 #define HID_CP_CHANNELRIGHT 0x000c0162 269 #define HID_CP_CHANNELCENTER 0x000c0163 270 #define HID_CP_CHANNELFRONT 0x000c0164 271 #define HID_CP_CHANNELCENTERFRONT 0x000c0165 272 #define HID_CP_CHANNELSIDE 0x000c0166 273 #define HID_CP_CHANNELSURROUND 0x000c0167 274 #define HID_CP_CHANNELLOWFREQUENCYENHANCEMENT 0x000c0168 275 #define HID_CP_CHANNELTOP 0x000c0169 276 #define HID_CP_CHANNELUNKNOWN 0x000c016a 277 #define HID_CP_APPLICATIONLAUNCHBUTTONS 0x000c0180 278 #define HID_CP_GENERICGUIAPPLICATIONCONTROLS 0x000c0200 279 280 #define HID_DG_DEVICECONFIG 0x000d000e 281 #define HID_DG_DEVICESETTINGS 0x000d0023 282 #define HID_DG_AZIMUTH 0x000d003f 283 #define HID_DG_CONFIDENCE 0x000d0047 284 #define HID_DG_WIDTH 0x000d0048 285 #define HID_DG_HEIGHT 0x000d0049 286 #define HID_DG_CONTACTID 0x000d0051 287 #define HID_DG_INPUTMODE 0x000d0052 288 #define HID_DG_DEVICEINDEX 0x000d0053 289 #define HID_DG_CONTACTCOUNT 0x000d0054 290 #define HID_DG_CONTACTMAX 0x000d0055 291 #define HID_DG_SCANTIME 0x000d0056 292 #define HID_DG_SURFACESWITCH 0x000d0057 293 #define HID_DG_BUTTONSWITCH 0x000d0058 294 #define HID_DG_BUTTONTYPE 0x000d0059 295 #define HID_DG_BARRELSWITCH2 0x000d005a 296 #define HID_DG_TOOLSERIALNUMBER 0x000d005b 297 #define HID_DG_LATENCYMODE 0x000d0060 298 299 #define HID_VD_ASUS_CUSTOM_MEDIA_KEYS 0xff310076 300 /* 301 * HID report types --- Ouch! HID spec says 1 2 3! 302 */ 303 304 #define HID_INPUT_REPORT 0 305 #define HID_OUTPUT_REPORT 1 306 #define HID_FEATURE_REPORT 2 307 308 #define HID_REPORT_TYPES 3 309 310 /* 311 * HID connect requests 312 */ 313 314 #define HID_CONNECT_HIDINPUT BIT(0) 315 #define HID_CONNECT_HIDINPUT_FORCE BIT(1) 316 #define HID_CONNECT_HIDRAW BIT(2) 317 #define HID_CONNECT_HIDDEV BIT(3) 318 #define HID_CONNECT_HIDDEV_FORCE BIT(4) 319 #define HID_CONNECT_FF BIT(5) 320 #define HID_CONNECT_DRIVER BIT(6) 321 #define HID_CONNECT_DEFAULT (HID_CONNECT_HIDINPUT|HID_CONNECT_HIDRAW| \ 322 HID_CONNECT_HIDDEV|HID_CONNECT_FF) 323 324 /* 325 * HID device quirks. 326 */ 327 328 /* 329 * Increase this if you need to configure more HID quirks at module load time 330 */ 331 #define MAX_USBHID_BOOT_QUIRKS 4 332 333 #define HID_QUIRK_INVERT BIT(0) 334 #define HID_QUIRK_NOTOUCH BIT(1) 335 #define HID_QUIRK_IGNORE BIT(2) 336 #define HID_QUIRK_NOGET BIT(3) 337 #define HID_QUIRK_HIDDEV_FORCE BIT(4) 338 #define HID_QUIRK_BADPAD BIT(5) 339 #define HID_QUIRK_MULTI_INPUT BIT(6) 340 #define HID_QUIRK_HIDINPUT_FORCE BIT(7) 341 /* BIT(8) reserved for backward compatibility, was HID_QUIRK_NO_EMPTY_INPUT */ 342 /* BIT(9) reserved for backward compatibility, was NO_INIT_INPUT_REPORTS */ 343 #define HID_QUIRK_ALWAYS_POLL BIT(10) 344 #define HID_QUIRK_INPUT_PER_APP BIT(11) 345 #define HID_QUIRK_SKIP_OUTPUT_REPORTS BIT(16) 346 #define HID_QUIRK_SKIP_OUTPUT_REPORT_ID BIT(17) 347 #define HID_QUIRK_NO_OUTPUT_REPORTS_ON_INTR_EP BIT(18) 348 #define HID_QUIRK_HAVE_SPECIAL_DRIVER BIT(19) 349 #define HID_QUIRK_INCREMENT_USAGE_ON_DUPLICATE BIT(20) 350 #define HID_QUIRK_FULLSPEED_INTERVAL BIT(28) 351 #define HID_QUIRK_NO_INIT_REPORTS BIT(29) 352 #define HID_QUIRK_NO_IGNORE BIT(30) 353 #define HID_QUIRK_NO_INPUT_SYNC BIT(31) 354 355 /* 356 * HID device groups 357 * 358 * Note: HID_GROUP_ANY is declared in linux/mod_devicetable.h 359 * and has a value of 0x0000 360 */ 361 #define HID_GROUP_GENERIC 0x0001 362 #define HID_GROUP_MULTITOUCH 0x0002 363 #define HID_GROUP_SENSOR_HUB 0x0003 364 #define HID_GROUP_MULTITOUCH_WIN_8 0x0004 365 366 /* 367 * Vendor specific HID device groups 368 */ 369 #define HID_GROUP_RMI 0x0100 370 #define HID_GROUP_WACOM 0x0101 371 #define HID_GROUP_LOGITECH_DJ_DEVICE 0x0102 372 #define HID_GROUP_STEAM 0x0103 373 #define HID_GROUP_LOGITECH_27MHZ_DEVICE 0x0104 374 375 /* 376 * HID protocol status 377 */ 378 #define HID_REPORT_PROTOCOL 1 379 #define HID_BOOT_PROTOCOL 0 380 381 /* 382 * This is the global environment of the parser. This information is 383 * persistent for main-items. The global environment can be saved and 384 * restored with PUSH/POP statements. 385 */ 386 387 struct hid_global { 388 unsigned usage_page; 389 __s32 logical_minimum; 390 __s32 logical_maximum; 391 __s32 physical_minimum; 392 __s32 physical_maximum; 393 __s32 unit_exponent; 394 unsigned unit; 395 unsigned report_id; 396 unsigned report_size; 397 unsigned report_count; 398 }; 399 400 /* 401 * This is the local environment. It is persistent up the next main-item. 402 */ 403 404 #define HID_MAX_USAGES 12288 405 #define HID_DEFAULT_NUM_COLLECTIONS 16 406 407 struct hid_local { 408 unsigned usage[HID_MAX_USAGES]; /* usage array */ 409 u8 usage_size[HID_MAX_USAGES]; /* usage size array */ 410 unsigned collection_index[HID_MAX_USAGES]; /* collection index array */ 411 unsigned usage_index; 412 unsigned usage_minimum; 413 unsigned delimiter_depth; 414 unsigned delimiter_branch; 415 }; 416 417 /* 418 * This is the collection stack. We climb up the stack to determine 419 * application and function of each field. 420 */ 421 422 struct hid_collection { 423 int parent_idx; /* device->collection */ 424 unsigned type; 425 unsigned usage; 426 unsigned level; 427 }; 428 429 struct hid_usage { 430 unsigned hid; /* hid usage code */ 431 unsigned collection_index; /* index into collection array */ 432 unsigned usage_index; /* index into usage array */ 433 __s8 resolution_multiplier;/* Effective Resolution Multiplier 434 (HUT v1.12, 4.3.1), default: 1 */ 435 /* hidinput data */ 436 __s8 wheel_factor; /* 120/resolution_multiplier */ 437 __u16 code; /* input driver code */ 438 __u8 type; /* input driver type */ 439 __s8 hat_min; /* hat switch fun */ 440 __s8 hat_max; /* ditto */ 441 __s8 hat_dir; /* ditto */ 442 __s16 wheel_accumulated; /* hi-res wheel */ 443 }; 444 445 struct hid_input; 446 447 struct hid_field { 448 unsigned physical; /* physical usage for this field */ 449 unsigned logical; /* logical usage for this field */ 450 unsigned application; /* application usage for this field */ 451 struct hid_usage *usage; /* usage table for this function */ 452 unsigned maxusage; /* maximum usage index */ 453 unsigned flags; /* main-item flags (i.e. volatile,array,constant) */ 454 unsigned report_offset; /* bit offset in the report */ 455 unsigned report_size; /* size of this field in the report */ 456 unsigned report_count; /* number of this field in the report */ 457 unsigned report_type; /* (input,output,feature) */ 458 __s32 *value; /* last known value(s) */ 459 __s32 logical_minimum; 460 __s32 logical_maximum; 461 __s32 physical_minimum; 462 __s32 physical_maximum; 463 __s32 unit_exponent; 464 unsigned unit; 465 struct hid_report *report; /* associated report */ 466 unsigned index; /* index into report->field[] */ 467 /* hidinput data */ 468 struct hid_input *hidinput; /* associated input structure */ 469 __u16 dpad; /* dpad input code */ 470 }; 471 472 #define HID_MAX_FIELDS 256 473 474 struct hid_report { 475 struct list_head list; 476 struct list_head hidinput_list; 477 unsigned int id; /* id of this report */ 478 unsigned int type; /* report type */ 479 unsigned int application; /* application usage for this report */ 480 struct hid_field *field[HID_MAX_FIELDS]; /* fields of the report */ 481 unsigned maxfield; /* maximum valid field index */ 482 unsigned size; /* size of the report (bits) */ 483 struct hid_device *device; /* associated device */ 484 }; 485 486 #define HID_MAX_IDS 256 487 488 struct hid_report_enum { 489 unsigned numbered; 490 struct list_head report_list; 491 struct hid_report *report_id_hash[HID_MAX_IDS]; 492 }; 493 494 #define HID_MIN_BUFFER_SIZE 64 /* make sure there is at least a packet size of space */ 495 #define HID_MAX_BUFFER_SIZE 4096 /* 4kb */ 496 #define HID_CONTROL_FIFO_SIZE 256 /* to init devices with >100 reports */ 497 #define HID_OUTPUT_FIFO_SIZE 64 498 499 struct hid_control_fifo { 500 unsigned char dir; 501 struct hid_report *report; 502 char *raw_report; 503 }; 504 505 struct hid_output_fifo { 506 struct hid_report *report; 507 char *raw_report; 508 }; 509 510 #define HID_CLAIMED_INPUT BIT(0) 511 #define HID_CLAIMED_HIDDEV BIT(1) 512 #define HID_CLAIMED_HIDRAW BIT(2) 513 #define HID_CLAIMED_DRIVER BIT(3) 514 515 #define HID_STAT_ADDED BIT(0) 516 #define HID_STAT_PARSED BIT(1) 517 #define HID_STAT_DUP_DETECTED BIT(2) 518 #define HID_STAT_REPROBED BIT(3) 519 520 struct hid_input { 521 struct list_head list; 522 struct hid_report *report; 523 struct input_dev *input; 524 const char *name; 525 bool registered; 526 struct list_head reports; /* the list of reports */ 527 unsigned int application; /* application usage for this input */ 528 }; 529 530 enum hid_type { 531 HID_TYPE_OTHER = 0, 532 HID_TYPE_USBMOUSE, 533 HID_TYPE_USBNONE 534 }; 535 536 enum hid_battery_status { 537 HID_BATTERY_UNKNOWN = 0, 538 HID_BATTERY_QUERIED, /* Kernel explicitly queried battery strength */ 539 HID_BATTERY_REPORTED, /* Device sent unsolicited battery strength report */ 540 }; 541 542 struct hid_driver; 543 struct hid_ll_driver; 544 545 struct hid_device { /* device report descriptor */ 546 __u8 *dev_rdesc; 547 unsigned dev_rsize; 548 __u8 *rdesc; 549 unsigned rsize; 550 struct hid_collection *collection; /* List of HID collections */ 551 unsigned collection_size; /* Number of allocated hid_collections */ 552 unsigned maxcollection; /* Number of parsed collections */ 553 unsigned maxapplication; /* Number of applications */ 554 __u16 bus; /* BUS ID */ 555 __u16 group; /* Report group */ 556 __u32 vendor; /* Vendor ID */ 557 __u32 product; /* Product ID */ 558 __u32 version; /* HID version */ 559 enum hid_type type; /* device type (mouse, kbd, ...) */ 560 unsigned country; /* HID country */ 561 struct hid_report_enum report_enum[HID_REPORT_TYPES]; 562 struct work_struct led_work; /* delayed LED worker */ 563 564 struct semaphore driver_input_lock; /* protects the current driver */ 565 struct device dev; /* device */ 566 struct hid_driver *driver; 567 568 struct hid_ll_driver *ll_driver; 569 struct mutex ll_open_lock; 570 unsigned int ll_open_count; 571 572 #ifdef CONFIG_HID_BATTERY_STRENGTH 573 /* 574 * Power supply information for HID devices which report 575 * battery strength. power_supply was successfully registered if 576 * battery is non-NULL. 577 */ 578 struct power_supply *battery; 579 __s32 battery_capacity; 580 __s32 battery_min; 581 __s32 battery_max; 582 __s32 battery_report_type; 583 __s32 battery_report_id; 584 enum hid_battery_status battery_status; 585 bool battery_avoid_query; 586 #endif 587 588 unsigned long status; /* see STAT flags above */ 589 unsigned claimed; /* Claimed by hidinput, hiddev? */ 590 unsigned quirks; /* Various quirks the device can pull on us */ 591 bool io_started; /* If IO has started */ 592 593 struct list_head inputs; /* The list of inputs */ 594 void *hiddev; /* The hiddev structure */ 595 void *hidraw; 596 597 char name[128]; /* Device name */ 598 char phys[64]; /* Device physical location */ 599 char uniq[64]; /* Device unique identifier (serial #) */ 600 601 void *driver_data; 602 603 /* temporary hid_ff handling (until moved to the drivers) */ 604 int (*ff_init)(struct hid_device *); 605 606 /* hiddev event handler */ 607 int (*hiddev_connect)(struct hid_device *, unsigned int); 608 void (*hiddev_disconnect)(struct hid_device *); 609 void (*hiddev_hid_event) (struct hid_device *, struct hid_field *field, 610 struct hid_usage *, __s32); 611 void (*hiddev_report_event) (struct hid_device *, struct hid_report *); 612 613 /* debugging support via debugfs */ 614 unsigned short debug; 615 struct dentry *debug_dir; 616 struct dentry *debug_rdesc; 617 struct dentry *debug_events; 618 struct list_head debug_list; 619 spinlock_t debug_list_lock; 620 wait_queue_head_t debug_wait; 621 }; 622 623 #define to_hid_device(pdev) \ 624 container_of(pdev, struct hid_device, dev) 625 626 static inline void *hid_get_drvdata(struct hid_device *hdev) 627 { 628 return dev_get_drvdata(&hdev->dev); 629 } 630 631 static inline void hid_set_drvdata(struct hid_device *hdev, void *data) 632 { 633 dev_set_drvdata(&hdev->dev, data); 634 } 635 636 #define HID_GLOBAL_STACK_SIZE 4 637 #define HID_COLLECTION_STACK_SIZE 4 638 639 #define HID_SCAN_FLAG_MT_WIN_8 BIT(0) 640 #define HID_SCAN_FLAG_VENDOR_SPECIFIC BIT(1) 641 #define HID_SCAN_FLAG_GD_POINTER BIT(2) 642 643 struct hid_parser { 644 struct hid_global global; 645 struct hid_global global_stack[HID_GLOBAL_STACK_SIZE]; 646 unsigned int global_stack_ptr; 647 struct hid_local local; 648 unsigned int *collection_stack; 649 unsigned int collection_stack_ptr; 650 unsigned int collection_stack_size; 651 struct hid_device *device; 652 unsigned int scan_flags; 653 }; 654 655 struct hid_class_descriptor { 656 __u8 bDescriptorType; 657 __le16 wDescriptorLength; 658 } __attribute__ ((packed)); 659 660 struct hid_descriptor { 661 __u8 bLength; 662 __u8 bDescriptorType; 663 __le16 bcdHID; 664 __u8 bCountryCode; 665 __u8 bNumDescriptors; 666 667 struct hid_class_descriptor desc[1]; 668 } __attribute__ ((packed)); 669 670 #define HID_DEVICE(b, g, ven, prod) \ 671 .bus = (b), .group = (g), .vendor = (ven), .product = (prod) 672 #define HID_USB_DEVICE(ven, prod) \ 673 .bus = BUS_USB, .vendor = (ven), .product = (prod) 674 #define HID_BLUETOOTH_DEVICE(ven, prod) \ 675 .bus = BUS_BLUETOOTH, .vendor = (ven), .product = (prod) 676 #define HID_I2C_DEVICE(ven, prod) \ 677 .bus = BUS_I2C, .vendor = (ven), .product = (prod) 678 679 #define HID_REPORT_ID(rep) \ 680 .report_type = (rep) 681 #define HID_USAGE_ID(uhid, utype, ucode) \ 682 .usage_hid = (uhid), .usage_type = (utype), .usage_code = (ucode) 683 /* we don't want to catch types and codes equal to 0 */ 684 #define HID_TERMINATOR (HID_ANY_ID - 1) 685 686 struct hid_report_id { 687 __u32 report_type; 688 }; 689 struct hid_usage_id { 690 __u32 usage_hid; 691 __u32 usage_type; 692 __u32 usage_code; 693 }; 694 695 /** 696 * struct hid_driver 697 * @name: driver name (e.g. "Footech_bar-wheel") 698 * @id_table: which devices is this driver for (must be non-NULL for probe 699 * to be called) 700 * @dyn_list: list of dynamically added device ids 701 * @dyn_lock: lock protecting @dyn_list 702 * @match: check if the given device is handled by this driver 703 * @probe: new device inserted 704 * @remove: device removed (NULL if not a hot-plug capable driver) 705 * @report_table: on which reports to call raw_event (NULL means all) 706 * @raw_event: if report in report_table, this hook is called (NULL means nop) 707 * @usage_table: on which events to call event (NULL means all) 708 * @event: if usage in usage_table, this hook is called (NULL means nop) 709 * @report: this hook is called after parsing a report (NULL means nop) 710 * @report_fixup: called before report descriptor parsing (NULL means nop) 711 * @input_mapping: invoked on input registering before mapping an usage 712 * @input_mapped: invoked on input registering after mapping an usage 713 * @input_configured: invoked just before the device is registered 714 * @feature_mapping: invoked on feature registering 715 * @suspend: invoked on suspend (NULL means nop) 716 * @resume: invoked on resume if device was not reset (NULL means nop) 717 * @reset_resume: invoked on resume if device was reset (NULL means nop) 718 * 719 * probe should return -errno on error, or 0 on success. During probe, 720 * input will not be passed to raw_event unless hid_device_io_start is 721 * called. 722 * 723 * raw_event and event should return negative on error, any other value will 724 * pass the event on to .event() typically return 0 for success. 725 * 726 * input_mapping shall return a negative value to completely ignore this usage 727 * (e.g. doubled or invalid usage), zero to continue with parsing of this 728 * usage by generic code (no special handling needed) or positive to skip 729 * generic parsing (needed special handling which was done in the hook already) 730 * input_mapped shall return negative to inform the layer that this usage 731 * should not be considered for further processing or zero to notify that 732 * no processing was performed and should be done in a generic manner 733 * Both these functions may be NULL which means the same behavior as returning 734 * zero from them. 735 */ 736 struct hid_driver { 737 char *name; 738 const struct hid_device_id *id_table; 739 740 struct list_head dyn_list; 741 spinlock_t dyn_lock; 742 743 bool (*match)(struct hid_device *dev, bool ignore_special_driver); 744 int (*probe)(struct hid_device *dev, const struct hid_device_id *id); 745 void (*remove)(struct hid_device *dev); 746 747 const struct hid_report_id *report_table; 748 int (*raw_event)(struct hid_device *hdev, struct hid_report *report, 749 u8 *data, int size); 750 const struct hid_usage_id *usage_table; 751 int (*event)(struct hid_device *hdev, struct hid_field *field, 752 struct hid_usage *usage, __s32 value); 753 void (*report)(struct hid_device *hdev, struct hid_report *report); 754 755 __u8 *(*report_fixup)(struct hid_device *hdev, __u8 *buf, 756 unsigned int *size); 757 758 int (*input_mapping)(struct hid_device *hdev, 759 struct hid_input *hidinput, struct hid_field *field, 760 struct hid_usage *usage, unsigned long **bit, int *max); 761 int (*input_mapped)(struct hid_device *hdev, 762 struct hid_input *hidinput, struct hid_field *field, 763 struct hid_usage *usage, unsigned long **bit, int *max); 764 int (*input_configured)(struct hid_device *hdev, 765 struct hid_input *hidinput); 766 void (*feature_mapping)(struct hid_device *hdev, 767 struct hid_field *field, 768 struct hid_usage *usage); 769 #ifdef CONFIG_PM 770 int (*suspend)(struct hid_device *hdev, pm_message_t message); 771 int (*resume)(struct hid_device *hdev); 772 int (*reset_resume)(struct hid_device *hdev); 773 #endif 774 /* private: */ 775 struct device_driver driver; 776 }; 777 778 #define to_hid_driver(pdrv) \ 779 container_of(pdrv, struct hid_driver, driver) 780 781 /** 782 * hid_ll_driver - low level driver callbacks 783 * @start: called on probe to start the device 784 * @stop: called on remove 785 * @open: called by input layer on open 786 * @close: called by input layer on close 787 * @power: request underlying hardware to enter requested power mode 788 * @parse: this method is called only once to parse the device data, 789 * shouldn't allocate anything to not leak memory 790 * @request: send report request to device (e.g. feature report) 791 * @wait: wait for buffered io to complete (send/recv reports) 792 * @raw_request: send raw report request to device (e.g. feature report) 793 * @output_report: send output report to device 794 * @idle: send idle request to device 795 */ 796 struct hid_ll_driver { 797 int (*start)(struct hid_device *hdev); 798 void (*stop)(struct hid_device *hdev); 799 800 int (*open)(struct hid_device *hdev); 801 void (*close)(struct hid_device *hdev); 802 803 int (*power)(struct hid_device *hdev, int level); 804 805 int (*parse)(struct hid_device *hdev); 806 807 void (*request)(struct hid_device *hdev, 808 struct hid_report *report, int reqtype); 809 810 int (*wait)(struct hid_device *hdev); 811 812 int (*raw_request) (struct hid_device *hdev, unsigned char reportnum, 813 __u8 *buf, size_t len, unsigned char rtype, 814 int reqtype); 815 816 int (*output_report) (struct hid_device *hdev, __u8 *buf, size_t len); 817 818 int (*idle)(struct hid_device *hdev, int report, int idle, int reqtype); 819 }; 820 821 extern struct hid_ll_driver i2c_hid_ll_driver; 822 extern struct hid_ll_driver hidp_hid_driver; 823 extern struct hid_ll_driver uhid_hid_driver; 824 extern struct hid_ll_driver usb_hid_driver; 825 826 static inline bool hid_is_using_ll_driver(struct hid_device *hdev, 827 struct hid_ll_driver *driver) 828 { 829 return hdev->ll_driver == driver; 830 } 831 832 #define PM_HINT_FULLON 1<<5 833 #define PM_HINT_NORMAL 1<<1 834 835 /* Applications from HID Usage Tables 4/8/99 Version 1.1 */ 836 /* We ignore a few input applications that are not widely used */ 837 #define IS_INPUT_APPLICATION(a) \ 838 (((a >= HID_UP_GENDESK) && (a <= HID_GD_MULTIAXIS)) \ 839 || ((a >= HID_DG_PEN) && (a <= HID_DG_WHITEBOARD)) \ 840 || (a == HID_GD_SYSTEM_CONTROL) || (a == HID_CP_CONSUMER_CONTROL) \ 841 || (a == HID_GD_WIRELESS_RADIO_CTLS)) 842 843 /* HID core API */ 844 845 extern int hid_debug; 846 847 extern bool hid_ignore(struct hid_device *); 848 extern int hid_add_device(struct hid_device *); 849 extern void hid_destroy_device(struct hid_device *); 850 851 extern struct bus_type hid_bus_type; 852 853 extern int __must_check __hid_register_driver(struct hid_driver *, 854 struct module *, const char *mod_name); 855 856 /* use a define to avoid include chaining to get THIS_MODULE & friends */ 857 #define hid_register_driver(driver) \ 858 __hid_register_driver(driver, THIS_MODULE, KBUILD_MODNAME) 859 860 extern void hid_unregister_driver(struct hid_driver *); 861 862 /** 863 * module_hid_driver() - Helper macro for registering a HID driver 864 * @__hid_driver: hid_driver struct 865 * 866 * Helper macro for HID drivers which do not do anything special in module 867 * init/exit. This eliminates a lot of boilerplate. Each module may only 868 * use this macro once, and calling it replaces module_init() and module_exit() 869 */ 870 #define module_hid_driver(__hid_driver) \ 871 module_driver(__hid_driver, hid_register_driver, \ 872 hid_unregister_driver) 873 874 extern void hidinput_hid_event(struct hid_device *, struct hid_field *, struct hid_usage *, __s32); 875 extern void hidinput_report_event(struct hid_device *hid, struct hid_report *report); 876 extern int hidinput_connect(struct hid_device *hid, unsigned int force); 877 extern void hidinput_disconnect(struct hid_device *); 878 879 int hid_set_field(struct hid_field *, unsigned, __s32); 880 int hid_input_report(struct hid_device *, int type, u8 *, u32, int); 881 int hidinput_find_field(struct hid_device *hid, unsigned int type, unsigned int code, struct hid_field **field); 882 struct hid_field *hidinput_get_led_field(struct hid_device *hid); 883 unsigned int hidinput_count_leds(struct hid_device *hid); 884 __s32 hidinput_calc_abs_res(const struct hid_field *field, __u16 code); 885 void hid_output_report(struct hid_report *report, __u8 *data); 886 int __hid_request(struct hid_device *hid, struct hid_report *rep, int reqtype); 887 u8 *hid_alloc_report_buf(struct hid_report *report, gfp_t flags); 888 struct hid_device *hid_allocate_device(void); 889 struct hid_report *hid_register_report(struct hid_device *device, 890 unsigned int type, unsigned int id, 891 unsigned int application); 892 int hid_parse_report(struct hid_device *hid, __u8 *start, unsigned size); 893 struct hid_report *hid_validate_values(struct hid_device *hid, 894 unsigned int type, unsigned int id, 895 unsigned int field_index, 896 unsigned int report_counts); 897 898 void hid_setup_resolution_multiplier(struct hid_device *hid); 899 int hid_open_report(struct hid_device *device); 900 int hid_check_keys_pressed(struct hid_device *hid); 901 int hid_connect(struct hid_device *hid, unsigned int connect_mask); 902 void hid_disconnect(struct hid_device *hid); 903 bool hid_match_one_id(const struct hid_device *hdev, 904 const struct hid_device_id *id); 905 const struct hid_device_id *hid_match_id(const struct hid_device *hdev, 906 const struct hid_device_id *id); 907 const struct hid_device_id *hid_match_device(struct hid_device *hdev, 908 struct hid_driver *hdrv); 909 bool hid_compare_device_paths(struct hid_device *hdev_a, 910 struct hid_device *hdev_b, char separator); 911 s32 hid_snto32(__u32 value, unsigned n); 912 __u32 hid_field_extract(const struct hid_device *hid, __u8 *report, 913 unsigned offset, unsigned n); 914 915 /** 916 * hid_device_io_start - enable HID input during probe, remove 917 * 918 * @hid - the device 919 * 920 * This should only be called during probe or remove and only be 921 * called by the thread calling probe or remove. It will allow 922 * incoming packets to be delivered to the driver. 923 */ 924 static inline void hid_device_io_start(struct hid_device *hid) { 925 if (hid->io_started) { 926 dev_warn(&hid->dev, "io already started\n"); 927 return; 928 } 929 hid->io_started = true; 930 up(&hid->driver_input_lock); 931 } 932 933 /** 934 * hid_device_io_stop - disable HID input during probe, remove 935 * 936 * @hid - the device 937 * 938 * Should only be called after hid_device_io_start. It will prevent 939 * incoming packets from going to the driver for the duration of 940 * probe, remove. If called during probe, packets will still go to the 941 * driver after probe is complete. This function should only be called 942 * by the thread calling probe or remove. 943 */ 944 static inline void hid_device_io_stop(struct hid_device *hid) { 945 if (!hid->io_started) { 946 dev_warn(&hid->dev, "io already stopped\n"); 947 return; 948 } 949 hid->io_started = false; 950 down(&hid->driver_input_lock); 951 } 952 953 /** 954 * hid_map_usage - map usage input bits 955 * 956 * @hidinput: hidinput which we are interested in 957 * @usage: usage to fill in 958 * @bit: pointer to input->{}bit (out parameter) 959 * @max: maximal valid usage->code to consider later (out parameter) 960 * @type: input event type (EV_KEY, EV_REL, ...) 961 * @c: code which corresponds to this usage and type 962 */ 963 static inline void hid_map_usage(struct hid_input *hidinput, 964 struct hid_usage *usage, unsigned long **bit, int *max, 965 __u8 type, __u16 c) 966 { 967 struct input_dev *input = hidinput->input; 968 969 usage->type = type; 970 usage->code = c; 971 972 switch (type) { 973 case EV_ABS: 974 *bit = input->absbit; 975 *max = ABS_MAX; 976 break; 977 case EV_REL: 978 *bit = input->relbit; 979 *max = REL_MAX; 980 break; 981 case EV_KEY: 982 *bit = input->keybit; 983 *max = KEY_MAX; 984 break; 985 case EV_LED: 986 *bit = input->ledbit; 987 *max = LED_MAX; 988 break; 989 } 990 } 991 992 /** 993 * hid_map_usage_clear - map usage input bits and clear the input bit 994 * 995 * The same as hid_map_usage, except the @c bit is also cleared in supported 996 * bits (@bit). 997 */ 998 static inline void hid_map_usage_clear(struct hid_input *hidinput, 999 struct hid_usage *usage, unsigned long **bit, int *max, 1000 __u8 type, __u16 c) 1001 { 1002 hid_map_usage(hidinput, usage, bit, max, type, c); 1003 clear_bit(c, *bit); 1004 } 1005 1006 /** 1007 * hid_parse - parse HW reports 1008 * 1009 * @hdev: hid device 1010 * 1011 * Call this from probe after you set up the device (if needed). Your 1012 * report_fixup will be called (if non-NULL) after reading raw report from 1013 * device before passing it to hid layer for real parsing. 1014 */ 1015 static inline int __must_check hid_parse(struct hid_device *hdev) 1016 { 1017 return hid_open_report(hdev); 1018 } 1019 1020 int __must_check hid_hw_start(struct hid_device *hdev, 1021 unsigned int connect_mask); 1022 void hid_hw_stop(struct hid_device *hdev); 1023 int __must_check hid_hw_open(struct hid_device *hdev); 1024 void hid_hw_close(struct hid_device *hdev); 1025 1026 /** 1027 * hid_hw_power - requests underlying HW to go into given power mode 1028 * 1029 * @hdev: hid device 1030 * @level: requested power level (one of %PM_HINT_* defines) 1031 * 1032 * This function requests underlying hardware to enter requested power 1033 * mode. 1034 */ 1035 1036 static inline int hid_hw_power(struct hid_device *hdev, int level) 1037 { 1038 return hdev->ll_driver->power ? hdev->ll_driver->power(hdev, level) : 0; 1039 } 1040 1041 1042 /** 1043 * hid_hw_request - send report request to device 1044 * 1045 * @hdev: hid device 1046 * @report: report to send 1047 * @reqtype: hid request type 1048 */ 1049 static inline void hid_hw_request(struct hid_device *hdev, 1050 struct hid_report *report, int reqtype) 1051 { 1052 if (hdev->ll_driver->request) 1053 return hdev->ll_driver->request(hdev, report, reqtype); 1054 1055 __hid_request(hdev, report, reqtype); 1056 } 1057 1058 /** 1059 * hid_hw_raw_request - send report request to device 1060 * 1061 * @hdev: hid device 1062 * @reportnum: report ID 1063 * @buf: in/out data to transfer 1064 * @len: length of buf 1065 * @rtype: HID report type 1066 * @reqtype: HID_REQ_GET_REPORT or HID_REQ_SET_REPORT 1067 * 1068 * @return: count of data transfered, negative if error 1069 * 1070 * Same behavior as hid_hw_request, but with raw buffers instead. 1071 */ 1072 static inline int hid_hw_raw_request(struct hid_device *hdev, 1073 unsigned char reportnum, __u8 *buf, 1074 size_t len, unsigned char rtype, int reqtype) 1075 { 1076 if (len < 1 || len > HID_MAX_BUFFER_SIZE || !buf) 1077 return -EINVAL; 1078 1079 return hdev->ll_driver->raw_request(hdev, reportnum, buf, len, 1080 rtype, reqtype); 1081 } 1082 1083 /** 1084 * hid_hw_output_report - send output report to device 1085 * 1086 * @hdev: hid device 1087 * @buf: raw data to transfer 1088 * @len: length of buf 1089 * 1090 * @return: count of data transfered, negative if error 1091 */ 1092 static inline int hid_hw_output_report(struct hid_device *hdev, __u8 *buf, 1093 size_t len) 1094 { 1095 if (len < 1 || len > HID_MAX_BUFFER_SIZE || !buf) 1096 return -EINVAL; 1097 1098 if (hdev->ll_driver->output_report) 1099 return hdev->ll_driver->output_report(hdev, buf, len); 1100 1101 return -ENOSYS; 1102 } 1103 1104 /** 1105 * hid_hw_idle - send idle request to device 1106 * 1107 * @hdev: hid device 1108 * @report: report to control 1109 * @idle: idle state 1110 * @reqtype: hid request type 1111 */ 1112 static inline int hid_hw_idle(struct hid_device *hdev, int report, int idle, 1113 int reqtype) 1114 { 1115 if (hdev->ll_driver->idle) 1116 return hdev->ll_driver->idle(hdev, report, idle, reqtype); 1117 1118 return 0; 1119 } 1120 1121 /** 1122 * hid_hw_wait - wait for buffered io to complete 1123 * 1124 * @hdev: hid device 1125 */ 1126 static inline void hid_hw_wait(struct hid_device *hdev) 1127 { 1128 if (hdev->ll_driver->wait) 1129 hdev->ll_driver->wait(hdev); 1130 } 1131 1132 /** 1133 * hid_report_len - calculate the report length 1134 * 1135 * @report: the report we want to know the length 1136 */ 1137 static inline u32 hid_report_len(struct hid_report *report) 1138 { 1139 /* equivalent to DIV_ROUND_UP(report->size, 8) + !!(report->id > 0) */ 1140 return ((report->size - 1) >> 3) + 1 + (report->id > 0); 1141 } 1142 1143 int hid_report_raw_event(struct hid_device *hid, int type, u8 *data, u32 size, 1144 int interrupt); 1145 1146 /* HID quirks API */ 1147 unsigned long hid_lookup_quirk(const struct hid_device *hdev); 1148 int hid_quirks_init(char **quirks_param, __u16 bus, int count); 1149 void hid_quirks_exit(__u16 bus); 1150 1151 #ifdef CONFIG_HID_PID 1152 int hid_pidff_init(struct hid_device *hid); 1153 #else 1154 #define hid_pidff_init NULL 1155 #endif 1156 1157 #define dbg_hid(format, arg...) \ 1158 do { \ 1159 if (hid_debug) \ 1160 printk(KERN_DEBUG "%s: " format, __FILE__, ##arg); \ 1161 } while (0) 1162 1163 #define hid_printk(level, hid, fmt, arg...) \ 1164 dev_printk(level, &(hid)->dev, fmt, ##arg) 1165 #define hid_emerg(hid, fmt, arg...) \ 1166 dev_emerg(&(hid)->dev, fmt, ##arg) 1167 #define hid_crit(hid, fmt, arg...) \ 1168 dev_crit(&(hid)->dev, fmt, ##arg) 1169 #define hid_alert(hid, fmt, arg...) \ 1170 dev_alert(&(hid)->dev, fmt, ##arg) 1171 #define hid_err(hid, fmt, arg...) \ 1172 dev_err(&(hid)->dev, fmt, ##arg) 1173 #define hid_notice(hid, fmt, arg...) \ 1174 dev_notice(&(hid)->dev, fmt, ##arg) 1175 #define hid_warn(hid, fmt, arg...) \ 1176 dev_warn(&(hid)->dev, fmt, ##arg) 1177 #define hid_info(hid, fmt, arg...) \ 1178 dev_info(&(hid)->dev, fmt, ##arg) 1179 #define hid_dbg(hid, fmt, arg...) \ 1180 dev_dbg(&(hid)->dev, fmt, ##arg) 1181 1182 #endif 1183