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 #define HID_COLLECTION_NAMED_ARRAY 4 106 107 /* 108 * HID report descriptor global item tags 109 */ 110 111 #define HID_GLOBAL_ITEM_TAG_USAGE_PAGE 0 112 #define HID_GLOBAL_ITEM_TAG_LOGICAL_MINIMUM 1 113 #define HID_GLOBAL_ITEM_TAG_LOGICAL_MAXIMUM 2 114 #define HID_GLOBAL_ITEM_TAG_PHYSICAL_MINIMUM 3 115 #define HID_GLOBAL_ITEM_TAG_PHYSICAL_MAXIMUM 4 116 #define HID_GLOBAL_ITEM_TAG_UNIT_EXPONENT 5 117 #define HID_GLOBAL_ITEM_TAG_UNIT 6 118 #define HID_GLOBAL_ITEM_TAG_REPORT_SIZE 7 119 #define HID_GLOBAL_ITEM_TAG_REPORT_ID 8 120 #define HID_GLOBAL_ITEM_TAG_REPORT_COUNT 9 121 #define HID_GLOBAL_ITEM_TAG_PUSH 10 122 #define HID_GLOBAL_ITEM_TAG_POP 11 123 124 /* 125 * HID report descriptor local item tags 126 */ 127 128 #define HID_LOCAL_ITEM_TAG_USAGE 0 129 #define HID_LOCAL_ITEM_TAG_USAGE_MINIMUM 1 130 #define HID_LOCAL_ITEM_TAG_USAGE_MAXIMUM 2 131 #define HID_LOCAL_ITEM_TAG_DESIGNATOR_INDEX 3 132 #define HID_LOCAL_ITEM_TAG_DESIGNATOR_MINIMUM 4 133 #define HID_LOCAL_ITEM_TAG_DESIGNATOR_MAXIMUM 5 134 #define HID_LOCAL_ITEM_TAG_STRING_INDEX 7 135 #define HID_LOCAL_ITEM_TAG_STRING_MINIMUM 8 136 #define HID_LOCAL_ITEM_TAG_STRING_MAXIMUM 9 137 #define HID_LOCAL_ITEM_TAG_DELIMITER 10 138 139 /* 140 * HID usage tables 141 */ 142 143 #define HID_USAGE_PAGE 0xffff0000 144 145 #define HID_UP_UNDEFINED 0x00000000 146 #define HID_UP_GENDESK 0x00010000 147 #define HID_UP_SIMULATION 0x00020000 148 #define HID_UP_GENDEVCTRLS 0x00060000 149 #define HID_UP_KEYBOARD 0x00070000 150 #define HID_UP_LED 0x00080000 151 #define HID_UP_BUTTON 0x00090000 152 #define HID_UP_ORDINAL 0x000a0000 153 #define HID_UP_TELEPHONY 0x000b0000 154 #define HID_UP_CONSUMER 0x000c0000 155 #define HID_UP_DIGITIZER 0x000d0000 156 #define HID_UP_PID 0x000f0000 157 #define HID_UP_BATTERY 0x00850000 158 #define HID_UP_HPVENDOR 0xff7f0000 159 #define HID_UP_HPVENDOR2 0xff010000 160 #define HID_UP_MSVENDOR 0xff000000 161 #define HID_UP_CUSTOM 0x00ff0000 162 #define HID_UP_LOGIVENDOR 0xffbc0000 163 #define HID_UP_LOGIVENDOR2 0xff090000 164 #define HID_UP_LOGIVENDOR3 0xff430000 165 #define HID_UP_LNVENDOR 0xffa00000 166 #define HID_UP_SENSOR 0x00200000 167 #define HID_UP_ASUSVENDOR 0xff310000 168 #define HID_UP_GOOGLEVENDOR 0xffd10000 169 170 #define HID_USAGE 0x0000ffff 171 172 #define HID_GD_POINTER 0x00010001 173 #define HID_GD_MOUSE 0x00010002 174 #define HID_GD_JOYSTICK 0x00010004 175 #define HID_GD_GAMEPAD 0x00010005 176 #define HID_GD_KEYBOARD 0x00010006 177 #define HID_GD_KEYPAD 0x00010007 178 #define HID_GD_MULTIAXIS 0x00010008 179 /* 180 * Microsoft Win8 Wireless Radio Controls extensions CA, see: 181 * http://www.usb.org/developers/hidpage/HUTRR40RadioHIDUsagesFinal.pdf 182 */ 183 #define HID_GD_WIRELESS_RADIO_CTLS 0x0001000c 184 /* 185 * System Multi-Axis, see: 186 * http://www.usb.org/developers/hidpage/HUTRR62_-_Generic_Desktop_CA_for_System_Multi-Axis_Controllers.txt 187 */ 188 #define HID_GD_SYSTEM_MULTIAXIS 0x0001000e 189 190 #define HID_GD_X 0x00010030 191 #define HID_GD_Y 0x00010031 192 #define HID_GD_Z 0x00010032 193 #define HID_GD_RX 0x00010033 194 #define HID_GD_RY 0x00010034 195 #define HID_GD_RZ 0x00010035 196 #define HID_GD_SLIDER 0x00010036 197 #define HID_GD_DIAL 0x00010037 198 #define HID_GD_WHEEL 0x00010038 199 #define HID_GD_HATSWITCH 0x00010039 200 #define HID_GD_BUFFER 0x0001003a 201 #define HID_GD_BYTECOUNT 0x0001003b 202 #define HID_GD_MOTION 0x0001003c 203 #define HID_GD_START 0x0001003d 204 #define HID_GD_SELECT 0x0001003e 205 #define HID_GD_VX 0x00010040 206 #define HID_GD_VY 0x00010041 207 #define HID_GD_VZ 0x00010042 208 #define HID_GD_VBRX 0x00010043 209 #define HID_GD_VBRY 0x00010044 210 #define HID_GD_VBRZ 0x00010045 211 #define HID_GD_VNO 0x00010046 212 #define HID_GD_FEATURE 0x00010047 213 #define HID_GD_RESOLUTION_MULTIPLIER 0x00010048 214 #define HID_GD_SYSTEM_CONTROL 0x00010080 215 #define HID_GD_UP 0x00010090 216 #define HID_GD_DOWN 0x00010091 217 #define HID_GD_RIGHT 0x00010092 218 #define HID_GD_LEFT 0x00010093 219 /* Microsoft Win8 Wireless Radio Controls CA usage codes */ 220 #define HID_GD_RFKILL_BTN 0x000100c6 221 #define HID_GD_RFKILL_LED 0x000100c7 222 #define HID_GD_RFKILL_SWITCH 0x000100c8 223 224 #define HID_DC_BATTERYSTRENGTH 0x00060020 225 226 #define HID_CP_CONSUMER_CONTROL 0x000c0001 227 #define HID_CP_AC_PAN 0x000c0238 228 229 #define HID_DG_DIGITIZER 0x000d0001 230 #define HID_DG_PEN 0x000d0002 231 #define HID_DG_LIGHTPEN 0x000d0003 232 #define HID_DG_TOUCHSCREEN 0x000d0004 233 #define HID_DG_TOUCHPAD 0x000d0005 234 #define HID_DG_WHITEBOARD 0x000d0006 235 #define HID_DG_STYLUS 0x000d0020 236 #define HID_DG_PUCK 0x000d0021 237 #define HID_DG_FINGER 0x000d0022 238 #define HID_DG_TIPPRESSURE 0x000d0030 239 #define HID_DG_BARRELPRESSURE 0x000d0031 240 #define HID_DG_INRANGE 0x000d0032 241 #define HID_DG_TOUCH 0x000d0033 242 #define HID_DG_UNTOUCH 0x000d0034 243 #define HID_DG_TAP 0x000d0035 244 #define HID_DG_TRANSDUCER_INDEX 0x000d0038 245 #define HID_DG_TABLETFUNCTIONKEY 0x000d0039 246 #define HID_DG_PROGRAMCHANGEKEY 0x000d003a 247 #define HID_DG_BATTERYSTRENGTH 0x000d003b 248 #define HID_DG_INVERT 0x000d003c 249 #define HID_DG_TILT_X 0x000d003d 250 #define HID_DG_TILT_Y 0x000d003e 251 #define HID_DG_TWIST 0x000d0041 252 #define HID_DG_TIPSWITCH 0x000d0042 253 #define HID_DG_TIPSWITCH2 0x000d0043 254 #define HID_DG_BARRELSWITCH 0x000d0044 255 #define HID_DG_ERASER 0x000d0045 256 #define HID_DG_TABLETPICK 0x000d0046 257 #define HID_DG_PEN_COLOR 0x000d005c 258 #define HID_DG_PEN_LINE_WIDTH 0x000d005e 259 #define HID_DG_PEN_LINE_STYLE 0x000d0070 260 #define HID_DG_PEN_LINE_STYLE_INK 0x000d0072 261 #define HID_DG_PEN_LINE_STYLE_PENCIL 0x000d0073 262 #define HID_DG_PEN_LINE_STYLE_HIGHLIGHTER 0x000d0074 263 #define HID_DG_PEN_LINE_STYLE_CHISEL_MARKER 0x000d0075 264 #define HID_DG_PEN_LINE_STYLE_BRUSH 0x000d0076 265 #define HID_DG_PEN_LINE_STYLE_NO_PREFERENCE 0x000d0077 266 267 #define HID_CP_CONSUMERCONTROL 0x000c0001 268 #define HID_CP_NUMERICKEYPAD 0x000c0002 269 #define HID_CP_PROGRAMMABLEBUTTONS 0x000c0003 270 #define HID_CP_MICROPHONE 0x000c0004 271 #define HID_CP_HEADPHONE 0x000c0005 272 #define HID_CP_GRAPHICEQUALIZER 0x000c0006 273 #define HID_CP_FUNCTIONBUTTONS 0x000c0036 274 #define HID_CP_SELECTION 0x000c0080 275 #define HID_CP_MEDIASELECTION 0x000c0087 276 #define HID_CP_SELECTDISC 0x000c00ba 277 #define HID_CP_VOLUMEUP 0x000c00e9 278 #define HID_CP_VOLUMEDOWN 0x000c00ea 279 #define HID_CP_PLAYBACKSPEED 0x000c00f1 280 #define HID_CP_PROXIMITY 0x000c0109 281 #define HID_CP_SPEAKERSYSTEM 0x000c0160 282 #define HID_CP_CHANNELLEFT 0x000c0161 283 #define HID_CP_CHANNELRIGHT 0x000c0162 284 #define HID_CP_CHANNELCENTER 0x000c0163 285 #define HID_CP_CHANNELFRONT 0x000c0164 286 #define HID_CP_CHANNELCENTERFRONT 0x000c0165 287 #define HID_CP_CHANNELSIDE 0x000c0166 288 #define HID_CP_CHANNELSURROUND 0x000c0167 289 #define HID_CP_CHANNELLOWFREQUENCYENHANCEMENT 0x000c0168 290 #define HID_CP_CHANNELTOP 0x000c0169 291 #define HID_CP_CHANNELUNKNOWN 0x000c016a 292 #define HID_CP_APPLICATIONLAUNCHBUTTONS 0x000c0180 293 #define HID_CP_GENERICGUIAPPLICATIONCONTROLS 0x000c0200 294 295 #define HID_DG_DEVICECONFIG 0x000d000e 296 #define HID_DG_DEVICESETTINGS 0x000d0023 297 #define HID_DG_AZIMUTH 0x000d003f 298 #define HID_DG_CONFIDENCE 0x000d0047 299 #define HID_DG_WIDTH 0x000d0048 300 #define HID_DG_HEIGHT 0x000d0049 301 #define HID_DG_CONTACTID 0x000d0051 302 #define HID_DG_INPUTMODE 0x000d0052 303 #define HID_DG_DEVICEINDEX 0x000d0053 304 #define HID_DG_CONTACTCOUNT 0x000d0054 305 #define HID_DG_CONTACTMAX 0x000d0055 306 #define HID_DG_SCANTIME 0x000d0056 307 #define HID_DG_SURFACESWITCH 0x000d0057 308 #define HID_DG_BUTTONSWITCH 0x000d0058 309 #define HID_DG_BUTTONTYPE 0x000d0059 310 #define HID_DG_BARRELSWITCH2 0x000d005a 311 #define HID_DG_TOOLSERIALNUMBER 0x000d005b 312 #define HID_DG_LATENCYMODE 0x000d0060 313 314 #define HID_BAT_ABSOLUTESTATEOFCHARGE 0x00850065 315 316 #define HID_VD_ASUS_CUSTOM_MEDIA_KEYS 0xff310076 317 /* 318 * HID report types --- Ouch! HID spec says 1 2 3! 319 */ 320 321 #define HID_INPUT_REPORT 0 322 #define HID_OUTPUT_REPORT 1 323 #define HID_FEATURE_REPORT 2 324 325 #define HID_REPORT_TYPES 3 326 327 /* 328 * HID connect requests 329 */ 330 331 #define HID_CONNECT_HIDINPUT BIT(0) 332 #define HID_CONNECT_HIDINPUT_FORCE BIT(1) 333 #define HID_CONNECT_HIDRAW BIT(2) 334 #define HID_CONNECT_HIDDEV BIT(3) 335 #define HID_CONNECT_HIDDEV_FORCE BIT(4) 336 #define HID_CONNECT_FF BIT(5) 337 #define HID_CONNECT_DRIVER BIT(6) 338 #define HID_CONNECT_DEFAULT (HID_CONNECT_HIDINPUT|HID_CONNECT_HIDRAW| \ 339 HID_CONNECT_HIDDEV|HID_CONNECT_FF) 340 341 /* 342 * HID device quirks. 343 */ 344 345 /* 346 * Increase this if you need to configure more HID quirks at module load time 347 */ 348 #define MAX_USBHID_BOOT_QUIRKS 4 349 350 #define HID_QUIRK_INVERT BIT(0) 351 #define HID_QUIRK_NOTOUCH BIT(1) 352 #define HID_QUIRK_IGNORE BIT(2) 353 #define HID_QUIRK_NOGET BIT(3) 354 #define HID_QUIRK_HIDDEV_FORCE BIT(4) 355 #define HID_QUIRK_BADPAD BIT(5) 356 #define HID_QUIRK_MULTI_INPUT BIT(6) 357 #define HID_QUIRK_HIDINPUT_FORCE BIT(7) 358 /* BIT(8) reserved for backward compatibility, was HID_QUIRK_NO_EMPTY_INPUT */ 359 /* BIT(9) reserved for backward compatibility, was NO_INIT_INPUT_REPORTS */ 360 #define HID_QUIRK_ALWAYS_POLL BIT(10) 361 #define HID_QUIRK_INPUT_PER_APP BIT(11) 362 #define HID_QUIRK_X_INVERT BIT(12) 363 #define HID_QUIRK_Y_INVERT BIT(13) 364 #define HID_QUIRK_SKIP_OUTPUT_REPORTS BIT(16) 365 #define HID_QUIRK_SKIP_OUTPUT_REPORT_ID BIT(17) 366 #define HID_QUIRK_NO_OUTPUT_REPORTS_ON_INTR_EP BIT(18) 367 #define HID_QUIRK_HAVE_SPECIAL_DRIVER BIT(19) 368 #define HID_QUIRK_INCREMENT_USAGE_ON_DUPLICATE BIT(20) 369 #define HID_QUIRK_FULLSPEED_INTERVAL BIT(28) 370 #define HID_QUIRK_NO_INIT_REPORTS BIT(29) 371 #define HID_QUIRK_NO_IGNORE BIT(30) 372 #define HID_QUIRK_NO_INPUT_SYNC BIT(31) 373 374 /* 375 * HID device groups 376 * 377 * Note: HID_GROUP_ANY is declared in linux/mod_devicetable.h 378 * and has a value of 0x0000 379 */ 380 #define HID_GROUP_GENERIC 0x0001 381 #define HID_GROUP_MULTITOUCH 0x0002 382 #define HID_GROUP_SENSOR_HUB 0x0003 383 #define HID_GROUP_MULTITOUCH_WIN_8 0x0004 384 385 /* 386 * Vendor specific HID device groups 387 */ 388 #define HID_GROUP_RMI 0x0100 389 #define HID_GROUP_WACOM 0x0101 390 #define HID_GROUP_LOGITECH_DJ_DEVICE 0x0102 391 #define HID_GROUP_STEAM 0x0103 392 #define HID_GROUP_LOGITECH_27MHZ_DEVICE 0x0104 393 #define HID_GROUP_VIVALDI 0x0105 394 395 /* 396 * HID protocol status 397 */ 398 #define HID_REPORT_PROTOCOL 1 399 #define HID_BOOT_PROTOCOL 0 400 401 /* 402 * This is the global environment of the parser. This information is 403 * persistent for main-items. The global environment can be saved and 404 * restored with PUSH/POP statements. 405 */ 406 407 struct hid_global { 408 unsigned usage_page; 409 __s32 logical_minimum; 410 __s32 logical_maximum; 411 __s32 physical_minimum; 412 __s32 physical_maximum; 413 __s32 unit_exponent; 414 unsigned unit; 415 unsigned report_id; 416 unsigned report_size; 417 unsigned report_count; 418 }; 419 420 /* 421 * This is the local environment. It is persistent up the next main-item. 422 */ 423 424 #define HID_MAX_USAGES 12288 425 #define HID_DEFAULT_NUM_COLLECTIONS 16 426 427 struct hid_local { 428 unsigned usage[HID_MAX_USAGES]; /* usage array */ 429 u8 usage_size[HID_MAX_USAGES]; /* usage size array */ 430 unsigned collection_index[HID_MAX_USAGES]; /* collection index array */ 431 unsigned usage_index; 432 unsigned usage_minimum; 433 unsigned delimiter_depth; 434 unsigned delimiter_branch; 435 }; 436 437 /* 438 * This is the collection stack. We climb up the stack to determine 439 * application and function of each field. 440 */ 441 442 struct hid_collection { 443 int parent_idx; /* device->collection */ 444 unsigned type; 445 unsigned usage; 446 unsigned level; 447 }; 448 449 struct hid_usage { 450 unsigned hid; /* hid usage code */ 451 unsigned collection_index; /* index into collection array */ 452 unsigned usage_index; /* index into usage array */ 453 __s8 resolution_multiplier;/* Effective Resolution Multiplier 454 (HUT v1.12, 4.3.1), default: 1 */ 455 /* hidinput data */ 456 __s8 wheel_factor; /* 120/resolution_multiplier */ 457 __u16 code; /* input driver code */ 458 __u8 type; /* input driver type */ 459 __s8 hat_min; /* hat switch fun */ 460 __s8 hat_max; /* ditto */ 461 __s8 hat_dir; /* ditto */ 462 __s16 wheel_accumulated; /* hi-res wheel */ 463 }; 464 465 struct hid_input; 466 467 struct hid_field { 468 unsigned physical; /* physical usage for this field */ 469 unsigned logical; /* logical usage for this field */ 470 unsigned application; /* application usage for this field */ 471 struct hid_usage *usage; /* usage table for this function */ 472 unsigned maxusage; /* maximum usage index */ 473 unsigned flags; /* main-item flags (i.e. volatile,array,constant) */ 474 unsigned report_offset; /* bit offset in the report */ 475 unsigned report_size; /* size of this field in the report */ 476 unsigned report_count; /* number of this field in the report */ 477 unsigned report_type; /* (input,output,feature) */ 478 __s32 *value; /* last known value(s) */ 479 __s32 logical_minimum; 480 __s32 logical_maximum; 481 __s32 physical_minimum; 482 __s32 physical_maximum; 483 __s32 unit_exponent; 484 unsigned unit; 485 struct hid_report *report; /* associated report */ 486 unsigned index; /* index into report->field[] */ 487 /* hidinput data */ 488 struct hid_input *hidinput; /* associated input structure */ 489 __u16 dpad; /* dpad input code */ 490 }; 491 492 #define HID_MAX_FIELDS 256 493 494 struct hid_report { 495 struct list_head list; 496 struct list_head hidinput_list; 497 unsigned int id; /* id of this report */ 498 unsigned int type; /* report type */ 499 unsigned int application; /* application usage for this report */ 500 struct hid_field *field[HID_MAX_FIELDS]; /* fields of the report */ 501 unsigned maxfield; /* maximum valid field index */ 502 unsigned size; /* size of the report (bits) */ 503 struct hid_device *device; /* associated device */ 504 }; 505 506 #define HID_MAX_IDS 256 507 508 struct hid_report_enum { 509 unsigned numbered; 510 struct list_head report_list; 511 struct hid_report *report_id_hash[HID_MAX_IDS]; 512 }; 513 514 #define HID_MIN_BUFFER_SIZE 64 /* make sure there is at least a packet size of space */ 515 #define HID_MAX_BUFFER_SIZE 16384 /* 16kb */ 516 #define HID_CONTROL_FIFO_SIZE 256 /* to init devices with >100 reports */ 517 #define HID_OUTPUT_FIFO_SIZE 64 518 519 struct hid_control_fifo { 520 unsigned char dir; 521 struct hid_report *report; 522 char *raw_report; 523 }; 524 525 struct hid_output_fifo { 526 struct hid_report *report; 527 char *raw_report; 528 }; 529 530 #define HID_CLAIMED_INPUT BIT(0) 531 #define HID_CLAIMED_HIDDEV BIT(1) 532 #define HID_CLAIMED_HIDRAW BIT(2) 533 #define HID_CLAIMED_DRIVER BIT(3) 534 535 #define HID_STAT_ADDED BIT(0) 536 #define HID_STAT_PARSED BIT(1) 537 #define HID_STAT_DUP_DETECTED BIT(2) 538 #define HID_STAT_REPROBED BIT(3) 539 540 struct hid_input { 541 struct list_head list; 542 struct hid_report *report; 543 struct input_dev *input; 544 const char *name; 545 bool registered; 546 struct list_head reports; /* the list of reports */ 547 unsigned int application; /* application usage for this input */ 548 }; 549 550 enum hid_type { 551 HID_TYPE_OTHER = 0, 552 HID_TYPE_USBMOUSE, 553 HID_TYPE_USBNONE 554 }; 555 556 enum hid_battery_status { 557 HID_BATTERY_UNKNOWN = 0, 558 HID_BATTERY_QUERIED, /* Kernel explicitly queried battery strength */ 559 HID_BATTERY_REPORTED, /* Device sent unsolicited battery strength report */ 560 }; 561 562 struct hid_driver; 563 struct hid_ll_driver; 564 565 struct hid_device { /* device report descriptor */ 566 __u8 *dev_rdesc; 567 unsigned dev_rsize; 568 __u8 *rdesc; 569 unsigned rsize; 570 struct hid_collection *collection; /* List of HID collections */ 571 unsigned collection_size; /* Number of allocated hid_collections */ 572 unsigned maxcollection; /* Number of parsed collections */ 573 unsigned maxapplication; /* Number of applications */ 574 __u16 bus; /* BUS ID */ 575 __u16 group; /* Report group */ 576 __u32 vendor; /* Vendor ID */ 577 __u32 product; /* Product ID */ 578 __u32 version; /* HID version */ 579 enum hid_type type; /* device type (mouse, kbd, ...) */ 580 unsigned country; /* HID country */ 581 struct hid_report_enum report_enum[HID_REPORT_TYPES]; 582 struct work_struct led_work; /* delayed LED worker */ 583 584 struct semaphore driver_input_lock; /* protects the current driver */ 585 struct device dev; /* device */ 586 struct hid_driver *driver; 587 588 struct hid_ll_driver *ll_driver; 589 struct mutex ll_open_lock; 590 unsigned int ll_open_count; 591 592 #ifdef CONFIG_HID_BATTERY_STRENGTH 593 /* 594 * Power supply information for HID devices which report 595 * battery strength. power_supply was successfully registered if 596 * battery is non-NULL. 597 */ 598 struct power_supply *battery; 599 __s32 battery_capacity; 600 __s32 battery_min; 601 __s32 battery_max; 602 __s32 battery_report_type; 603 __s32 battery_report_id; 604 enum hid_battery_status battery_status; 605 bool battery_avoid_query; 606 ktime_t battery_ratelimit_time; 607 #endif 608 609 unsigned long status; /* see STAT flags above */ 610 unsigned claimed; /* Claimed by hidinput, hiddev? */ 611 unsigned quirks; /* Various quirks the device can pull on us */ 612 bool io_started; /* If IO has started */ 613 614 struct list_head inputs; /* The list of inputs */ 615 void *hiddev; /* The hiddev structure */ 616 void *hidraw; 617 618 char name[128]; /* Device name */ 619 char phys[64]; /* Device physical location */ 620 char uniq[64]; /* Device unique identifier (serial #) */ 621 622 void *driver_data; 623 624 /* temporary hid_ff handling (until moved to the drivers) */ 625 int (*ff_init)(struct hid_device *); 626 627 /* hiddev event handler */ 628 int (*hiddev_connect)(struct hid_device *, unsigned int); 629 void (*hiddev_disconnect)(struct hid_device *); 630 void (*hiddev_hid_event) (struct hid_device *, struct hid_field *field, 631 struct hid_usage *, __s32); 632 void (*hiddev_report_event) (struct hid_device *, struct hid_report *); 633 634 /* debugging support via debugfs */ 635 unsigned short debug; 636 struct dentry *debug_dir; 637 struct dentry *debug_rdesc; 638 struct dentry *debug_events; 639 struct list_head debug_list; 640 spinlock_t debug_list_lock; 641 wait_queue_head_t debug_wait; 642 }; 643 644 #define to_hid_device(pdev) \ 645 container_of(pdev, struct hid_device, dev) 646 647 static inline void *hid_get_drvdata(struct hid_device *hdev) 648 { 649 return dev_get_drvdata(&hdev->dev); 650 } 651 652 static inline void hid_set_drvdata(struct hid_device *hdev, void *data) 653 { 654 dev_set_drvdata(&hdev->dev, data); 655 } 656 657 #define HID_GLOBAL_STACK_SIZE 4 658 #define HID_COLLECTION_STACK_SIZE 4 659 660 #define HID_SCAN_FLAG_MT_WIN_8 BIT(0) 661 #define HID_SCAN_FLAG_VENDOR_SPECIFIC BIT(1) 662 #define HID_SCAN_FLAG_GD_POINTER BIT(2) 663 664 struct hid_parser { 665 struct hid_global global; 666 struct hid_global global_stack[HID_GLOBAL_STACK_SIZE]; 667 unsigned int global_stack_ptr; 668 struct hid_local local; 669 unsigned int *collection_stack; 670 unsigned int collection_stack_ptr; 671 unsigned int collection_stack_size; 672 struct hid_device *device; 673 unsigned int scan_flags; 674 }; 675 676 struct hid_class_descriptor { 677 __u8 bDescriptorType; 678 __le16 wDescriptorLength; 679 } __attribute__ ((packed)); 680 681 struct hid_descriptor { 682 __u8 bLength; 683 __u8 bDescriptorType; 684 __le16 bcdHID; 685 __u8 bCountryCode; 686 __u8 bNumDescriptors; 687 688 struct hid_class_descriptor desc[1]; 689 } __attribute__ ((packed)); 690 691 #define HID_DEVICE(b, g, ven, prod) \ 692 .bus = (b), .group = (g), .vendor = (ven), .product = (prod) 693 #define HID_USB_DEVICE(ven, prod) \ 694 .bus = BUS_USB, .vendor = (ven), .product = (prod) 695 #define HID_BLUETOOTH_DEVICE(ven, prod) \ 696 .bus = BUS_BLUETOOTH, .vendor = (ven), .product = (prod) 697 #define HID_I2C_DEVICE(ven, prod) \ 698 .bus = BUS_I2C, .vendor = (ven), .product = (prod) 699 700 #define HID_REPORT_ID(rep) \ 701 .report_type = (rep) 702 #define HID_USAGE_ID(uhid, utype, ucode) \ 703 .usage_hid = (uhid), .usage_type = (utype), .usage_code = (ucode) 704 /* we don't want to catch types and codes equal to 0 */ 705 #define HID_TERMINATOR (HID_ANY_ID - 1) 706 707 struct hid_report_id { 708 __u32 report_type; 709 }; 710 struct hid_usage_id { 711 __u32 usage_hid; 712 __u32 usage_type; 713 __u32 usage_code; 714 }; 715 716 /** 717 * struct hid_driver 718 * @name: driver name (e.g. "Footech_bar-wheel") 719 * @id_table: which devices is this driver for (must be non-NULL for probe 720 * to be called) 721 * @dyn_list: list of dynamically added device ids 722 * @dyn_lock: lock protecting @dyn_list 723 * @match: check if the given device is handled by this driver 724 * @probe: new device inserted 725 * @remove: device removed (NULL if not a hot-plug capable driver) 726 * @report_table: on which reports to call raw_event (NULL means all) 727 * @raw_event: if report in report_table, this hook is called (NULL means nop) 728 * @usage_table: on which events to call event (NULL means all) 729 * @event: if usage in usage_table, this hook is called (NULL means nop) 730 * @report: this hook is called after parsing a report (NULL means nop) 731 * @report_fixup: called before report descriptor parsing (NULL means nop) 732 * @input_mapping: invoked on input registering before mapping an usage 733 * @input_mapped: invoked on input registering after mapping an usage 734 * @input_configured: invoked just before the device is registered 735 * @feature_mapping: invoked on feature registering 736 * @suspend: invoked on suspend (NULL means nop) 737 * @resume: invoked on resume if device was not reset (NULL means nop) 738 * @reset_resume: invoked on resume if device was reset (NULL means nop) 739 * 740 * probe should return -errno on error, or 0 on success. During probe, 741 * input will not be passed to raw_event unless hid_device_io_start is 742 * called. 743 * 744 * raw_event and event should return negative on error, any other value will 745 * pass the event on to .event() typically return 0 for success. 746 * 747 * input_mapping shall return a negative value to completely ignore this usage 748 * (e.g. doubled or invalid usage), zero to continue with parsing of this 749 * usage by generic code (no special handling needed) or positive to skip 750 * generic parsing (needed special handling which was done in the hook already) 751 * input_mapped shall return negative to inform the layer that this usage 752 * should not be considered for further processing or zero to notify that 753 * no processing was performed and should be done in a generic manner 754 * Both these functions may be NULL which means the same behavior as returning 755 * zero from them. 756 */ 757 struct hid_driver { 758 char *name; 759 const struct hid_device_id *id_table; 760 761 struct list_head dyn_list; 762 spinlock_t dyn_lock; 763 764 bool (*match)(struct hid_device *dev, bool ignore_special_driver); 765 int (*probe)(struct hid_device *dev, const struct hid_device_id *id); 766 void (*remove)(struct hid_device *dev); 767 768 const struct hid_report_id *report_table; 769 int (*raw_event)(struct hid_device *hdev, struct hid_report *report, 770 u8 *data, int size); 771 const struct hid_usage_id *usage_table; 772 int (*event)(struct hid_device *hdev, struct hid_field *field, 773 struct hid_usage *usage, __s32 value); 774 void (*report)(struct hid_device *hdev, struct hid_report *report); 775 776 __u8 *(*report_fixup)(struct hid_device *hdev, __u8 *buf, 777 unsigned int *size); 778 779 int (*input_mapping)(struct hid_device *hdev, 780 struct hid_input *hidinput, struct hid_field *field, 781 struct hid_usage *usage, unsigned long **bit, int *max); 782 int (*input_mapped)(struct hid_device *hdev, 783 struct hid_input *hidinput, struct hid_field *field, 784 struct hid_usage *usage, unsigned long **bit, int *max); 785 int (*input_configured)(struct hid_device *hdev, 786 struct hid_input *hidinput); 787 void (*feature_mapping)(struct hid_device *hdev, 788 struct hid_field *field, 789 struct hid_usage *usage); 790 #ifdef CONFIG_PM 791 int (*suspend)(struct hid_device *hdev, pm_message_t message); 792 int (*resume)(struct hid_device *hdev); 793 int (*reset_resume)(struct hid_device *hdev); 794 #endif 795 /* private: */ 796 struct device_driver driver; 797 }; 798 799 #define to_hid_driver(pdrv) \ 800 container_of(pdrv, struct hid_driver, driver) 801 802 /** 803 * struct hid_ll_driver - low level driver callbacks 804 * @start: called on probe to start the device 805 * @stop: called on remove 806 * @open: called by input layer on open 807 * @close: called by input layer on close 808 * @power: request underlying hardware to enter requested power mode 809 * @parse: this method is called only once to parse the device data, 810 * shouldn't allocate anything to not leak memory 811 * @request: send report request to device (e.g. feature report) 812 * @wait: wait for buffered io to complete (send/recv reports) 813 * @raw_request: send raw report request to device (e.g. feature report) 814 * @output_report: send output report to device 815 * @idle: send idle request to device 816 * @may_wakeup: return if device may act as a wakeup source during system-suspend 817 */ 818 struct hid_ll_driver { 819 int (*start)(struct hid_device *hdev); 820 void (*stop)(struct hid_device *hdev); 821 822 int (*open)(struct hid_device *hdev); 823 void (*close)(struct hid_device *hdev); 824 825 int (*power)(struct hid_device *hdev, int level); 826 827 int (*parse)(struct hid_device *hdev); 828 829 void (*request)(struct hid_device *hdev, 830 struct hid_report *report, int reqtype); 831 832 int (*wait)(struct hid_device *hdev); 833 834 int (*raw_request) (struct hid_device *hdev, unsigned char reportnum, 835 __u8 *buf, size_t len, unsigned char rtype, 836 int reqtype); 837 838 int (*output_report) (struct hid_device *hdev, __u8 *buf, size_t len); 839 840 int (*idle)(struct hid_device *hdev, int report, int idle, int reqtype); 841 bool (*may_wakeup)(struct hid_device *hdev); 842 }; 843 844 extern struct hid_ll_driver i2c_hid_ll_driver; 845 extern struct hid_ll_driver hidp_hid_driver; 846 extern struct hid_ll_driver uhid_hid_driver; 847 extern struct hid_ll_driver usb_hid_driver; 848 849 static inline bool hid_is_using_ll_driver(struct hid_device *hdev, 850 struct hid_ll_driver *driver) 851 { 852 return hdev->ll_driver == driver; 853 } 854 855 static inline bool hid_is_usb(struct hid_device *hdev) 856 { 857 return hid_is_using_ll_driver(hdev, &usb_hid_driver); 858 } 859 860 #define PM_HINT_FULLON 1<<5 861 #define PM_HINT_NORMAL 1<<1 862 863 /* Applications from HID Usage Tables 4/8/99 Version 1.1 */ 864 /* We ignore a few input applications that are not widely used */ 865 #define IS_INPUT_APPLICATION(a) \ 866 (((a >= HID_UP_GENDESK) && (a <= HID_GD_MULTIAXIS)) \ 867 || ((a >= HID_DG_PEN) && (a <= HID_DG_WHITEBOARD)) \ 868 || (a == HID_GD_SYSTEM_CONTROL) || (a == HID_CP_CONSUMER_CONTROL) \ 869 || (a == HID_GD_WIRELESS_RADIO_CTLS)) 870 871 /* HID core API */ 872 873 extern int hid_debug; 874 875 extern bool hid_ignore(struct hid_device *); 876 extern int hid_add_device(struct hid_device *); 877 extern void hid_destroy_device(struct hid_device *); 878 879 extern struct bus_type hid_bus_type; 880 881 extern int __must_check __hid_register_driver(struct hid_driver *, 882 struct module *, const char *mod_name); 883 884 /* use a define to avoid include chaining to get THIS_MODULE & friends */ 885 #define hid_register_driver(driver) \ 886 __hid_register_driver(driver, THIS_MODULE, KBUILD_MODNAME) 887 888 extern void hid_unregister_driver(struct hid_driver *); 889 890 /** 891 * module_hid_driver() - Helper macro for registering a HID driver 892 * @__hid_driver: hid_driver struct 893 * 894 * Helper macro for HID drivers which do not do anything special in module 895 * init/exit. This eliminates a lot of boilerplate. Each module may only 896 * use this macro once, and calling it replaces module_init() and module_exit() 897 */ 898 #define module_hid_driver(__hid_driver) \ 899 module_driver(__hid_driver, hid_register_driver, \ 900 hid_unregister_driver) 901 902 extern void hidinput_hid_event(struct hid_device *, struct hid_field *, struct hid_usage *, __s32); 903 extern void hidinput_report_event(struct hid_device *hid, struct hid_report *report); 904 extern int hidinput_connect(struct hid_device *hid, unsigned int force); 905 extern void hidinput_disconnect(struct hid_device *); 906 907 int hid_set_field(struct hid_field *, unsigned, __s32); 908 int hid_input_report(struct hid_device *, int type, u8 *, u32, int); 909 struct hid_field *hidinput_get_led_field(struct hid_device *hid); 910 unsigned int hidinput_count_leds(struct hid_device *hid); 911 __s32 hidinput_calc_abs_res(const struct hid_field *field, __u16 code); 912 void hid_output_report(struct hid_report *report, __u8 *data); 913 int __hid_request(struct hid_device *hid, struct hid_report *rep, int reqtype); 914 u8 *hid_alloc_report_buf(struct hid_report *report, gfp_t flags); 915 struct hid_device *hid_allocate_device(void); 916 struct hid_report *hid_register_report(struct hid_device *device, 917 unsigned int type, unsigned int id, 918 unsigned int application); 919 int hid_parse_report(struct hid_device *hid, __u8 *start, unsigned size); 920 struct hid_report *hid_validate_values(struct hid_device *hid, 921 unsigned int type, unsigned int id, 922 unsigned int field_index, 923 unsigned int report_counts); 924 925 void hid_setup_resolution_multiplier(struct hid_device *hid); 926 int hid_open_report(struct hid_device *device); 927 int hid_check_keys_pressed(struct hid_device *hid); 928 int hid_connect(struct hid_device *hid, unsigned int connect_mask); 929 void hid_disconnect(struct hid_device *hid); 930 bool hid_match_one_id(const struct hid_device *hdev, 931 const struct hid_device_id *id); 932 const struct hid_device_id *hid_match_id(const struct hid_device *hdev, 933 const struct hid_device_id *id); 934 const struct hid_device_id *hid_match_device(struct hid_device *hdev, 935 struct hid_driver *hdrv); 936 bool hid_compare_device_paths(struct hid_device *hdev_a, 937 struct hid_device *hdev_b, char separator); 938 s32 hid_snto32(__u32 value, unsigned n); 939 __u32 hid_field_extract(const struct hid_device *hid, __u8 *report, 940 unsigned offset, unsigned n); 941 942 #ifdef CONFIG_PM 943 int hid_driver_suspend(struct hid_device *hdev, pm_message_t state); 944 int hid_driver_reset_resume(struct hid_device *hdev); 945 int hid_driver_resume(struct hid_device *hdev); 946 #else 947 static inline int hid_driver_suspend(struct hid_device *hdev, pm_message_t state) { return 0; } 948 static inline int hid_driver_reset_resume(struct hid_device *hdev) { return 0; } 949 static inline int hid_driver_resume(struct hid_device *hdev) { return 0; } 950 #endif 951 952 /** 953 * hid_device_io_start - enable HID input during probe, remove 954 * 955 * @hid: the device 956 * 957 * This should only be called during probe or remove and only be 958 * called by the thread calling probe or remove. It will allow 959 * incoming packets to be delivered to the driver. 960 */ 961 static inline void hid_device_io_start(struct hid_device *hid) { 962 if (hid->io_started) { 963 dev_warn(&hid->dev, "io already started\n"); 964 return; 965 } 966 hid->io_started = true; 967 up(&hid->driver_input_lock); 968 } 969 970 /** 971 * hid_device_io_stop - disable HID input during probe, remove 972 * 973 * @hid: the device 974 * 975 * Should only be called after hid_device_io_start. It will prevent 976 * incoming packets from going to the driver for the duration of 977 * probe, remove. If called during probe, packets will still go to the 978 * driver after probe is complete. This function should only be called 979 * by the thread calling probe or remove. 980 */ 981 static inline void hid_device_io_stop(struct hid_device *hid) { 982 if (!hid->io_started) { 983 dev_warn(&hid->dev, "io already stopped\n"); 984 return; 985 } 986 hid->io_started = false; 987 down(&hid->driver_input_lock); 988 } 989 990 /** 991 * hid_map_usage - map usage input bits 992 * 993 * @hidinput: hidinput which we are interested in 994 * @usage: usage to fill in 995 * @bit: pointer to input->{}bit (out parameter) 996 * @max: maximal valid usage->code to consider later (out parameter) 997 * @type: input event type (EV_KEY, EV_REL, ...) 998 * @c: code which corresponds to this usage and type 999 * 1000 * The value pointed to by @bit will be set to NULL if either @type is 1001 * an unhandled event type, or if @c is out of range for @type. This 1002 * can be used as an error condition. 1003 */ 1004 static inline void hid_map_usage(struct hid_input *hidinput, 1005 struct hid_usage *usage, unsigned long **bit, int *max, 1006 __u8 type, unsigned int c) 1007 { 1008 struct input_dev *input = hidinput->input; 1009 unsigned long *bmap = NULL; 1010 unsigned int limit = 0; 1011 1012 switch (type) { 1013 case EV_ABS: 1014 bmap = input->absbit; 1015 limit = ABS_MAX; 1016 break; 1017 case EV_REL: 1018 bmap = input->relbit; 1019 limit = REL_MAX; 1020 break; 1021 case EV_KEY: 1022 bmap = input->keybit; 1023 limit = KEY_MAX; 1024 break; 1025 case EV_LED: 1026 bmap = input->ledbit; 1027 limit = LED_MAX; 1028 break; 1029 case EV_MSC: 1030 bmap = input->mscbit; 1031 limit = MSC_MAX; 1032 break; 1033 } 1034 1035 if (unlikely(c > limit || !bmap)) { 1036 pr_warn_ratelimited("%s: Invalid code %d type %d\n", 1037 input->name, c, type); 1038 *bit = NULL; 1039 return; 1040 } 1041 1042 usage->type = type; 1043 usage->code = c; 1044 *max = limit; 1045 *bit = bmap; 1046 } 1047 1048 /** 1049 * hid_map_usage_clear - map usage input bits and clear the input bit 1050 * 1051 * @hidinput: hidinput which we are interested in 1052 * @usage: usage to fill in 1053 * @bit: pointer to input->{}bit (out parameter) 1054 * @max: maximal valid usage->code to consider later (out parameter) 1055 * @type: input event type (EV_KEY, EV_REL, ...) 1056 * @c: code which corresponds to this usage and type 1057 * 1058 * The same as hid_map_usage, except the @c bit is also cleared in supported 1059 * bits (@bit). 1060 */ 1061 static inline void hid_map_usage_clear(struct hid_input *hidinput, 1062 struct hid_usage *usage, unsigned long **bit, int *max, 1063 __u8 type, __u16 c) 1064 { 1065 hid_map_usage(hidinput, usage, bit, max, type, c); 1066 if (*bit) 1067 clear_bit(usage->code, *bit); 1068 } 1069 1070 /** 1071 * hid_parse - parse HW reports 1072 * 1073 * @hdev: hid device 1074 * 1075 * Call this from probe after you set up the device (if needed). Your 1076 * report_fixup will be called (if non-NULL) after reading raw report from 1077 * device before passing it to hid layer for real parsing. 1078 */ 1079 static inline int __must_check hid_parse(struct hid_device *hdev) 1080 { 1081 return hid_open_report(hdev); 1082 } 1083 1084 int __must_check hid_hw_start(struct hid_device *hdev, 1085 unsigned int connect_mask); 1086 void hid_hw_stop(struct hid_device *hdev); 1087 int __must_check hid_hw_open(struct hid_device *hdev); 1088 void hid_hw_close(struct hid_device *hdev); 1089 void hid_hw_request(struct hid_device *hdev, 1090 struct hid_report *report, int reqtype); 1091 int hid_hw_raw_request(struct hid_device *hdev, 1092 unsigned char reportnum, __u8 *buf, 1093 size_t len, unsigned char rtype, int reqtype); 1094 int hid_hw_output_report(struct hid_device *hdev, __u8 *buf, size_t len); 1095 1096 /** 1097 * hid_hw_power - requests underlying HW to go into given power mode 1098 * 1099 * @hdev: hid device 1100 * @level: requested power level (one of %PM_HINT_* defines) 1101 * 1102 * This function requests underlying hardware to enter requested power 1103 * mode. 1104 */ 1105 1106 static inline int hid_hw_power(struct hid_device *hdev, int level) 1107 { 1108 return hdev->ll_driver->power ? hdev->ll_driver->power(hdev, level) : 0; 1109 } 1110 1111 1112 /** 1113 * hid_hw_idle - send idle request to device 1114 * 1115 * @hdev: hid device 1116 * @report: report to control 1117 * @idle: idle state 1118 * @reqtype: hid request type 1119 */ 1120 static inline int hid_hw_idle(struct hid_device *hdev, int report, int idle, 1121 int reqtype) 1122 { 1123 if (hdev->ll_driver->idle) 1124 return hdev->ll_driver->idle(hdev, report, idle, reqtype); 1125 1126 return 0; 1127 } 1128 1129 /** 1130 * hid_hw_may_wakeup - return if the hid device may act as a wakeup source during system-suspend 1131 * 1132 * @hdev: hid device 1133 */ 1134 static inline bool hid_hw_may_wakeup(struct hid_device *hdev) 1135 { 1136 if (hdev->ll_driver->may_wakeup) 1137 return hdev->ll_driver->may_wakeup(hdev); 1138 1139 if (hdev->dev.parent) 1140 return device_may_wakeup(hdev->dev.parent); 1141 1142 return false; 1143 } 1144 1145 /** 1146 * hid_hw_wait - wait for buffered io to complete 1147 * 1148 * @hdev: hid device 1149 */ 1150 static inline void hid_hw_wait(struct hid_device *hdev) 1151 { 1152 if (hdev->ll_driver->wait) 1153 hdev->ll_driver->wait(hdev); 1154 } 1155 1156 /** 1157 * hid_report_len - calculate the report length 1158 * 1159 * @report: the report we want to know the length 1160 */ 1161 static inline u32 hid_report_len(struct hid_report *report) 1162 { 1163 return DIV_ROUND_UP(report->size, 8) + (report->id > 0); 1164 } 1165 1166 int hid_report_raw_event(struct hid_device *hid, int type, u8 *data, u32 size, 1167 int interrupt); 1168 1169 /* HID quirks API */ 1170 unsigned long hid_lookup_quirk(const struct hid_device *hdev); 1171 int hid_quirks_init(char **quirks_param, __u16 bus, int count); 1172 void hid_quirks_exit(__u16 bus); 1173 1174 #ifdef CONFIG_HID_PID 1175 int hid_pidff_init(struct hid_device *hid); 1176 #else 1177 #define hid_pidff_init NULL 1178 #endif 1179 1180 #define dbg_hid(fmt, ...) \ 1181 do { \ 1182 if (hid_debug) \ 1183 printk(KERN_DEBUG "%s: " fmt, __FILE__, ##__VA_ARGS__); \ 1184 } while (0) 1185 1186 #define hid_err(hid, fmt, ...) \ 1187 dev_err(&(hid)->dev, fmt, ##__VA_ARGS__) 1188 #define hid_notice(hid, fmt, ...) \ 1189 dev_notice(&(hid)->dev, fmt, ##__VA_ARGS__) 1190 #define hid_warn(hid, fmt, ...) \ 1191 dev_warn(&(hid)->dev, fmt, ##__VA_ARGS__) 1192 #define hid_info(hid, fmt, ...) \ 1193 dev_info(&(hid)->dev, fmt, ##__VA_ARGS__) 1194 #define hid_dbg(hid, fmt, ...) \ 1195 dev_dbg(&(hid)->dev, fmt, ##__VA_ARGS__) 1196 1197 #define hid_err_once(hid, fmt, ...) \ 1198 dev_err_once(&(hid)->dev, fmt, ##__VA_ARGS__) 1199 #define hid_notice_once(hid, fmt, ...) \ 1200 dev_notice_once(&(hid)->dev, fmt, ##__VA_ARGS__) 1201 #define hid_warn_once(hid, fmt, ...) \ 1202 dev_warn_once(&(hid)->dev, fmt, ##__VA_ARGS__) 1203 #define hid_info_once(hid, fmt, ...) \ 1204 dev_info_once(&(hid)->dev, fmt, ##__VA_ARGS__) 1205 #define hid_dbg_once(hid, fmt, ...) \ 1206 dev_dbg_once(&(hid)->dev, fmt, ##__VA_ARGS__) 1207 1208 #endif 1209