include/linux/hid.h

   1 #ifndef __HID_H
   2 #define __HID_H
   3
   4 /*
   5  *  Copyright (c) 1999 Andreas Gal
   6  *  Copyright (c) 2000-2001 Vojtech Pavlik
   7  *  Copyright (c) 2006-2007 Jiri Kosina
   8  */
   9
  10 /*
  11  * This program is free software; you can redistribute it and/or modify
  12  * it under the terms of the GNU General Public License as published by
  13  * the Free Software Foundation; either version 2 of the License, or
  14  * (at your option) any later version.
  15  *
  16  * This program is distributed in the hope that it will be useful,
  17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19  * GNU General Public License for more details.
  20  *
  21  * You should have received a copy of the GNU General Public License
  22  * along with this program; if not, write to the Free Software
  23  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  24  *
  25  * Should you need to contact me, the author, you can do so either by
  26  * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
  27  * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
  28  */
  29
  30 /*
  31  * USB HID (Human Interface Device) interface class code
  32  */
  33
  34 #define USB_INTERFACE_CLASS_HID         3
  35
  36 /*
  37  * USB HID interface subclass and protocol codes
  38  */
  39
  40 #define USB_INTERFACE_SUBCLASS_BOOT     1
  41 #define USB_INTERFACE_PROTOCOL_KEYBOARD 1
  42 #define USB_INTERFACE_PROTOCOL_MOUSE    2
  43
  44 /*
  45  * HID class requests
  46  */
  47
  48 #define HID_REQ_GET_REPORT              0x01
  49 #define HID_REQ_GET_IDLE                0x02
  50 #define HID_REQ_GET_PROTOCOL            0x03
  51 #define HID_REQ_SET_REPORT              0x09
  52 #define HID_REQ_SET_IDLE                0x0A
  53 #define HID_REQ_SET_PROTOCOL            0x0B
  54
  55 /*
  56  * HID class descriptor types
  57  */
  58
  59 #define HID_DT_HID                      (USB_TYPE_CLASS | 0x01)
  60 #define HID_DT_REPORT                   (USB_TYPE_CLASS | 0x02)
  61 #define HID_DT_PHYSICAL                 (USB_TYPE_CLASS | 0x03)
  62
  63 #define HID_MAX_DESCRIPTOR_SIZE         4096
  64
  65 #ifdef __KERNEL__
  66
  67 #include <linux/types.h>
  68 #include <linux/slab.h>
  69 #include <linux/list.h>
  70 #include <linux/timer.h>
  71 #include <linux/workqueue.h>
  72 #include <linux/input.h>
  73
  74 /*
  75  * We parse each description item into this structure. Short items data
  76  * values are expanded to 32-bit signed int, long items contain a pointer
  77  * into the data area.
  78  */
  79
  80 struct hid_item {
  81         unsigned  format;
  82         __u8      size;
  83         __u8      type;
  84         __u8      tag;
  85         union {
  86             __u8   u8;
  87             __s8   s8;
  88             __u16  u16;
  89             __s16  s16;
  90             __u32  u32;
  91             __s32  s32;
  92             __u8  *longdata;
  93         } data;
  94 };
  95
  96 /*
  97  * HID report item format
  98  */
  99
 100 #define HID_ITEM_FORMAT_SHORT   0
 101 #define HID_ITEM_FORMAT_LONG    1
 102
 103 /*
 104  * Special tag indicating long items
 105  */
 106
 107 #define HID_ITEM_TAG_LONG       15
 108
 109 /*
 110  * HID report descriptor item type (prefix bit 2,3)
 111  */
 112
 113 #define HID_ITEM_TYPE_MAIN              0
 114 #define HID_ITEM_TYPE_GLOBAL            1
 115 #define HID_ITEM_TYPE_LOCAL             2
 116 #define HID_ITEM_TYPE_RESERVED          3
 117
 118 /*
 119  * HID report descriptor main item tags
 120  */
 121
 122 #define HID_MAIN_ITEM_TAG_INPUT                 8
 123 #define HID_MAIN_ITEM_TAG_OUTPUT                9
 124 #define HID_MAIN_ITEM_TAG_FEATURE               11
 125 #define HID_MAIN_ITEM_TAG_BEGIN_COLLECTION      10
 126 #define HID_MAIN_ITEM_TAG_END_COLLECTION        12
 127
 128 /*
 129  * HID report descriptor main item contents
 130  */
 131
 132 #define HID_MAIN_ITEM_CONSTANT          0x001
 133 #define HID_MAIN_ITEM_VARIABLE          0x002
 134 #define HID_MAIN_ITEM_RELATIVE          0x004
 135 #define HID_MAIN_ITEM_WRAP              0x008
 136 #define HID_MAIN_ITEM_NONLINEAR         0x010
 137 #define HID_MAIN_ITEM_NO_PREFERRED      0x020
 138 #define HID_MAIN_ITEM_NULL_STATE        0x040
 139 #define HID_MAIN_ITEM_VOLATILE          0x080
 140 #define HID_MAIN_ITEM_BUFFERED_BYTE     0x100
 141
 142 /*
 143  * HID report descriptor collection item types
 144  */
 145
 146 #define HID_COLLECTION_PHYSICAL         0
 147 #define HID_COLLECTION_APPLICATION      1
 148 #define HID_COLLECTION_LOGICAL          2
 149
 150 /*
 151  * HID report descriptor global item tags
 152  */
 153
 154 #define HID_GLOBAL_ITEM_TAG_USAGE_PAGE          0
 155 #define HID_GLOBAL_ITEM_TAG_LOGICAL_MINIMUM     1
 156 #define HID_GLOBAL_ITEM_TAG_LOGICAL_MAXIMUM     2
 157 #define HID_GLOBAL_ITEM_TAG_PHYSICAL_MINIMUM    3
 158 #define HID_GLOBAL_ITEM_TAG_PHYSICAL_MAXIMUM    4
 159 #define HID_GLOBAL_ITEM_TAG_UNIT_EXPONENT       5
 160 #define HID_GLOBAL_ITEM_TAG_UNIT                6
 161 #define HID_GLOBAL_ITEM_TAG_REPORT_SIZE         7
 162 #define HID_GLOBAL_ITEM_TAG_REPORT_ID           8
 163 #define HID_GLOBAL_ITEM_TAG_REPORT_COUNT        9
 164 #define HID_GLOBAL_ITEM_TAG_PUSH                10
 165 #define HID_GLOBAL_ITEM_TAG_POP                 11
 166
 167 /*
 168  * HID report descriptor local item tags
 169  */
 170
 171 #define HID_LOCAL_ITEM_TAG_USAGE                0
 172 #define HID_LOCAL_ITEM_TAG_USAGE_MINIMUM        1
 173 #define HID_LOCAL_ITEM_TAG_USAGE_MAXIMUM        2
 174 #define HID_LOCAL_ITEM_TAG_DESIGNATOR_INDEX     3
 175 #define HID_LOCAL_ITEM_TAG_DESIGNATOR_MINIMUM   4
 176 #define HID_LOCAL_ITEM_TAG_DESIGNATOR_MAXIMUM   5
 177 #define HID_LOCAL_ITEM_TAG_STRING_INDEX         7
 178 #define HID_LOCAL_ITEM_TAG_STRING_MINIMUM       8
 179 #define HID_LOCAL_ITEM_TAG_STRING_MAXIMUM       9
 180 #define HID_LOCAL_ITEM_TAG_DELIMITER            10
 181
 182 /*
 183  * HID usage tables
 184  */
 185
 186 #define HID_USAGE_PAGE          0xffff0000
 187
 188 #define HID_UP_UNDEFINED        0x00000000
 189 #define HID_UP_GENDESK          0x00010000
 190 #define HID_UP_SIMULATION       0x00020000
 191 #define HID_UP_KEYBOARD         0x00070000
 192 #define HID_UP_LED              0x00080000
 193 #define HID_UP_BUTTON           0x00090000
 194 #define HID_UP_ORDINAL          0x000a0000
 195 #define HID_UP_CONSUMER         0x000c0000
 196 #define HID_UP_DIGITIZER        0x000d0000
 197 #define HID_UP_PID              0x000f0000
 198 #define HID_UP_HPVENDOR         0xff7f0000
 199 #define HID_UP_MSVENDOR         0xff000000
 200 #define HID_UP_CUSTOM           0x00ff0000
 201 #define HID_UP_LOGIVENDOR       0xffbc0000
 202
 203 #define HID_USAGE               0x0000ffff
 204
 205 #define HID_GD_POINTER          0x00010001
 206 #define HID_GD_MOUSE            0x00010002
 207 #define HID_GD_JOYSTICK         0x00010004
 208 #define HID_GD_GAMEPAD          0x00010005
 209 #define HID_GD_KEYBOARD         0x00010006
 210 #define HID_GD_KEYPAD           0x00010007
 211 #define HID_GD_MULTIAXIS        0x00010008
 212 #define HID_GD_X                0x00010030
 213 #define HID_GD_Y                0x00010031
 214 #define HID_GD_Z                0x00010032
 215 #define HID_GD_RX               0x00010033
 216 #define HID_GD_RY               0x00010034
 217 #define HID_GD_RZ               0x00010035
 218 #define HID_GD_SLIDER           0x00010036
 219 #define HID_GD_DIAL             0x00010037
 220 #define HID_GD_WHEEL            0x00010038
 221 #define HID_GD_HATSWITCH        0x00010039
 222 #define HID_GD_BUFFER           0x0001003a
 223 #define HID_GD_BYTECOUNT        0x0001003b
 224 #define HID_GD_MOTION           0x0001003c
 225 #define HID_GD_START            0x0001003d
 226 #define HID_GD_SELECT           0x0001003e
 227 #define HID_GD_VX               0x00010040
 228 #define HID_GD_VY               0x00010041
 229 #define HID_GD_VZ               0x00010042
 230 #define HID_GD_VBRX             0x00010043
 231 #define HID_GD_VBRY             0x00010044
 232 #define HID_GD_VBRZ             0x00010045
 233 #define HID_GD_VNO              0x00010046
 234 #define HID_GD_FEATURE          0x00010047
 235 #define HID_GD_UP               0x00010090
 236 #define HID_GD_DOWN             0x00010091
 237 #define HID_GD_RIGHT            0x00010092
 238 #define HID_GD_LEFT             0x00010093
 239
 240 /*
 241  * HID report types --- Ouch! HID spec says 1 2 3!
 242  */
 243
 244 #define HID_INPUT_REPORT        0
 245 #define HID_OUTPUT_REPORT       1
 246 #define HID_FEATURE_REPORT      2
 247
 248 /*
 249  * HID device quirks.
 250  */
 251
 252 /*
 253  * Increase this if you need to configure more HID quirks at module load time
 254  */
 255 #define MAX_USBHID_BOOT_QUIRKS 4
 256
 257 #define HID_QUIRK_INVERT                        0x00000001
 258 #define HID_QUIRK_NOTOUCH                       0x00000002
 259 #define HID_QUIRK_IGNORE                        0x00000004
 260 #define HID_QUIRK_NOGET                         0x00000008
 261 #define HID_QUIRK_HIDDEV                        0x00000010
 262 #define HID_QUIRK_BADPAD                        0x00000020
 263 #define HID_QUIRK_MULTI_INPUT                   0x00000040
 264 #define HID_QUIRK_2WHEEL_MOUSE_HACK_7           0x00000080
 265 #define HID_QUIRK_2WHEEL_MOUSE_HACK_5           0x00000100
 266 #define HID_QUIRK_2WHEEL_MOUSE_HACK_ON          0x00000200
 267 #define HID_QUIRK_MIGHTYMOUSE                   0x00000400
 268 #define HID_QUIRK_APPLE_HAS_FN                  0x00000800
 269 #define HID_QUIRK_APPLE_FN_ON                   0x00001000
 270 #define HID_QUIRK_INVERT_HWHEEL                 0x00002000
 271 #define HID_QUIRK_APPLE_ISO_KEYBOARD            0x00004000
 272 #define HID_QUIRK_BAD_RELATIVE_KEYS             0x00008000
 273 #define HID_QUIRK_SKIP_OUTPUT_REPORTS           0x00010000
 274 #define HID_QUIRK_IGNORE_MOUSE                  0x00020000
 275 #define HID_QUIRK_SONY_PS3_CONTROLLER           0x00040000
 276 #define HID_QUIRK_DUPLICATE_USAGES              0x00080000
 277 #define HID_QUIRK_RESET_LEDS                    0x00100000
 278 #define HID_QUIRK_HIDINPUT                      0x00200000
 279 #define HID_QUIRK_LOGITECH_IGNORE_DOUBLED_WHEEL 0x00400000
 280 #define HID_QUIRK_LOGITECH_EXPANDED_KEYMAP      0x00800000
 281 #define HID_QUIRK_IGNORE_HIDINPUT               0x01000000
 282 #define HID_QUIRK_2WHEEL_MOUSE_HACK_B8          0x02000000
 283 #define HID_QUIRK_HWHEEL_WHEEL_INVERT           0x04000000
 284 #define HID_QUIRK_MICROSOFT_KEYS                0x08000000
 285 #define HID_QUIRK_FULLSPEED_INTERVAL            0x10000000
 286 #define HID_QUIRK_APPLE_NUMLOCK_EMULATION       0x20000000
 287
 288 /*
 289  * Separate quirks for runtime report descriptor fixup
 290  */
 291
 292 #define HID_QUIRK_RDESC_CYMOTION                0x00000001
 293 #define HID_QUIRK_RDESC_LOGITECH                0x00000002
 294 #define HID_QUIRK_RDESC_SWAPPED_MIN_MAX         0x00000004
 295 #define HID_QUIRK_RDESC_PETALYNX                0x00000008
 296 #define HID_QUIRK_RDESC_MACBOOK_JIS             0x00000010
 297 #define HID_QUIRK_RDESC_BUTTON_CONSUMER         0x00000020
 298 #define HID_QUIRK_RDESC_SAMSUNG_REMOTE          0x00000040
 299 #define HID_QUIRK_RDESC_MICROSOFT_RECV_1028     0x00000080
 300 #define HID_QUIRK_RDESC_SUNPLUS_WDESKTOP        0x00000100
 301
 302 /*
 303  * This is the global environment of the parser. This information is
 304  * persistent for main-items. The global environment can be saved and
 305  * restored with PUSH/POP statements.
 306  */
 307
 308 struct hid_global {
 309         unsigned usage_page;
 310         __s32    logical_minimum;
 311         __s32    logical_maximum;
 312         __s32    physical_minimum;
 313         __s32    physical_maximum;
 314         __s32    unit_exponent;
 315         unsigned unit;
 316         unsigned report_id;
 317         unsigned report_size;
 318         unsigned report_count;
 319 };
 320
 321 /*
 322  * This is the local environment. It is persistent up the next main-item.
 323  */
 324
 325 #define HID_MAX_USAGES                  12288
 326 #define HID_DEFAULT_NUM_COLLECTIONS     16
 327
 328 struct hid_local {
 329         unsigned usage[HID_MAX_USAGES]; /* usage array */
 330         unsigned collection_index[HID_MAX_USAGES]; /* collection index array */
 331         unsigned usage_index;
 332         unsigned usage_minimum;
 333         unsigned delimiter_depth;
 334         unsigned delimiter_branch;
 335 };
 336
 337 /*
 338  * This is the collection stack. We climb up the stack to determine
 339  * application and function of each field.
 340  */
 341
 342 struct hid_collection {
 343         unsigned type;
 344         unsigned usage;
 345         unsigned level;
 346 };
 347
 348 struct hid_usage {
 349         unsigned  hid;                  /* hid usage code */
 350         unsigned  collection_index;     /* index into collection array */
 351         /* hidinput data */
 352         __u16     code;                 /* input driver code */
 353         __u8      type;                 /* input driver type */
 354         __s8      hat_min;              /* hat switch fun */
 355         __s8      hat_max;              /* ditto */
 356         __s8      hat_dir;              /* ditto */
 357 };
 358
 359 struct hid_input;
 360
 361 struct hid_field {
 362         unsigned  physical;             /* physical usage for this field */
 363         unsigned  logical;              /* logical usage for this field */
 364         unsigned  application;          /* application usage for this field */
 365         struct hid_usage *usage;        /* usage table for this function */
 366         unsigned  maxusage;             /* maximum usage index */
 367         unsigned  flags;                /* main-item flags (i.e. volatile,array,constant) */
 368         unsigned  report_offset;        /* bit offset in the report */
 369         unsigned  report_size;          /* size of this field in the report */
 370         unsigned  report_count;         /* number of this field in the report */
 371         unsigned  report_type;          /* (input,output,feature) */
 372         __s32    *value;                /* last known value(s) */
 373         __s32     logical_minimum;
 374         __s32     logical_maximum;
 375         __s32     physical_minimum;
 376         __s32     physical_maximum;
 377         __s32     unit_exponent;
 378         unsigned  unit;
 379         struct hid_report *report;      /* associated report */
 380         unsigned index;                 /* index into report->field[] */
 381         /* hidinput data */
 382         struct hid_input *hidinput;     /* associated input structure */
 383         __u16 dpad;                     /* dpad input code */
 384 };
 385
 386 #define HID_MAX_FIELDS 64
 387
 388 struct hid_report {
 389         struct list_head list;
 390         unsigned id;                                    /* id of this report */
 391         unsigned type;                                  /* report type */
 392         struct hid_field *field[HID_MAX_FIELDS];        /* fields of the report */
 393         unsigned maxfield;                              /* maximum valid field index */
 394         unsigned size;                                  /* size of the report (bits) */
 395         struct hid_device *device;                      /* associated device */
 396 };
 397
 398 struct hid_report_enum {
 399         unsigned numbered;
 400         struct list_head report_list;
 401         struct hid_report *report_id_hash[256];
 402 };
 403
 404 #define HID_REPORT_TYPES 3
 405
 406 #define HID_MIN_BUFFER_SIZE     64              /* make sure there is at least a packet size of space */
 407 #define HID_MAX_BUFFER_SIZE     4096            /* 4kb */
 408 #define HID_CONTROL_FIFO_SIZE   256             /* to init devices with >100 reports */
 409 #define HID_OUTPUT_FIFO_SIZE    64
 410
 411 struct hid_control_fifo {
 412         unsigned char dir;
 413         struct hid_report *report;
 414 };
 415
 416 #define HID_CLAIMED_INPUT       1
 417 #define HID_CLAIMED_HIDDEV      2
 418 #define HID_CLAIMED_HIDRAW      4
 419
 420 #define HID_CTRL_RUNNING        1
 421 #define HID_OUT_RUNNING         2
 422 #define HID_IN_RUNNING          3
 423 #define HID_RESET_PENDING       4
 424 #define HID_SUSPENDED           5
 425 #define HID_CLEAR_HALT          6
 426 #define HID_DISCONNECTED        7
 427
 428 struct hid_input {
 429         struct list_head list;
 430         struct hid_report *report;
 431         struct input_dev *input;
 432 };
 433
 434 struct hid_device {                                                     /* device report descriptor */
 435          __u8 *rdesc;
 436         unsigned rsize;
 437         struct hid_collection *collection;                              /* List of HID collections */
 438         unsigned collection_size;                                       /* Number of allocated hid_collections */
 439         unsigned maxcollection;                                         /* Number of parsed collections */
 440         unsigned maxapplication;                                        /* Number of applications */
 441         unsigned short bus;                                             /* BUS ID */
 442         unsigned short vendor;                                          /* Vendor ID */
 443         unsigned short product;                                         /* Product ID */
 444         unsigned version;                                               /* HID version */
 445         unsigned country;                                               /* HID country */
 446         struct hid_report_enum report_enum[HID_REPORT_TYPES];
 447
 448         struct device *dev;                                             /* device */
 449
 450         unsigned claimed;                                               /* Claimed by hidinput, hiddev? */
 451         unsigned quirks;                                                /* Various quirks the device can pull on us */
 452
 453         struct list_head inputs;                                        /* The list of inputs */
 454         void *hiddev;                                                   /* The hiddev structure */
 455         void *hidraw;
 456         int minor;                                                      /* Hiddev minor number */
 457
 458         int open;                                                       /* is the device open by anyone? */
 459         char name[128];                                                 /* Device name */
 460         char phys[64];                                                  /* Device physical location */
 461         char uniq[64];                                                  /* Device unique identifier (serial #) */
 462
 463         void *driver_data;
 464
 465         __s32 delayed_value;                                            /* For A4 Tech mice hwheel quirk */
 466
 467         /* device-specific function pointers */
 468         int (*hidinput_input_event) (struct input_dev *, unsigned int, unsigned int, int);
 469         int (*hid_open) (struct hid_device *);
 470         void (*hid_close) (struct hid_device *);
 471
 472         /* hiddev event handler */
 473         void (*hiddev_hid_event) (struct hid_device *, struct hid_field *field,
 474                                   struct hid_usage *, __s32);
 475         void (*hiddev_report_event) (struct hid_device *, struct hid_report *);
 476
 477         /* handler for raw output data, used by hidraw */
 478         int (*hid_output_raw_report) (struct hid_device *, __u8 *, size_t);
 479 #ifdef CONFIG_USB_HIDINPUT_POWERBOOK
 480         unsigned long apple_pressed_fn[BITS_TO_LONGS(KEY_CNT)];
 481         unsigned long pb_pressed_numlock[BITS_TO_LONGS(KEY_CNT)];
 482 #endif
 483 };
 484
 485 #define HID_GLOBAL_STACK_SIZE 4
 486 #define HID_COLLECTION_STACK_SIZE 4
 487
 488 struct hid_parser {
 489         struct hid_global     global;
 490         struct hid_global     global_stack[HID_GLOBAL_STACK_SIZE];
 491         unsigned              global_stack_ptr;
 492         struct hid_local      local;
 493         unsigned              collection_stack[HID_COLLECTION_STACK_SIZE];
 494         unsigned              collection_stack_ptr;
 495         struct hid_device    *device;
 496 };
 497
 498 struct hid_class_descriptor {
 499         __u8  bDescriptorType;
 500         __le16 wDescriptorLength;
 501 } __attribute__ ((packed));
 502
 503 struct hid_descriptor {
 504         __u8  bLength;
 505         __u8  bDescriptorType;
 506         __le16 bcdHID;
 507         __u8  bCountryCode;
 508         __u8  bNumDescriptors;
 509
 510         struct hid_class_descriptor desc[1];
 511 } __attribute__ ((packed));
 512
 513 /* Applications from HID Usage Tables 4/8/99 Version 1.1 */
 514 /* We ignore a few input applications that are not widely used */
 515 #define IS_INPUT_APPLICATION(a) (((a >= 0x00010000) && (a <= 0x00010008)) || (a == 0x00010080) || (a == 0x000c0001) || (a == 0x000d0002))
 516
 517 /* HID core API */
 518
 519 #ifdef CONFIG_HID_DEBUG
 520 extern int hid_debug;
 521 #endif
 522
 523 extern void hidinput_hid_event(struct hid_device *, struct hid_field *, struct hid_usage *, __s32);
 524 extern void hidinput_report_event(struct hid_device *hid, struct hid_report *report);
 525 extern int hidinput_connect(struct hid_device *);
 526 extern void hidinput_disconnect(struct hid_device *);
 527
 528 int hid_set_field(struct hid_field *, unsigned, __s32);
 529 int hid_input_report(struct hid_device *, int type, u8 *, int, int);
 530 int hidinput_find_field(struct hid_device *hid, unsigned int type, unsigned int code, struct hid_field **field);
 531 int hidinput_mapping_quirks(struct hid_usage *, struct input_dev *, unsigned long **, int *);
 532 int hidinput_event_quirks(struct hid_device *, struct hid_field *, struct hid_usage *, __s32);
 533 int hidinput_apple_event(struct hid_device *, struct input_dev *, struct hid_usage *, __s32);
 534 void hid_output_report(struct hid_report *report, __u8 *data);
 535 void hid_free_device(struct hid_device *device);
 536 struct hid_device *hid_parse_report(__u8 *start, unsigned size);
 537
 538 /* HID quirks API */
 539 u32 usbhid_lookup_quirk(const u16 idVendor, const u16 idProduct);
 540 int usbhid_quirks_init(char **quirks_param);
 541 void usbhid_quirks_exit(void);
 542 void usbhid_fixup_report_descriptor(const u16, const u16, char *, unsigned, char **);
 543
 544 #ifdef CONFIG_HID_FF
 545 int hid_ff_init(struct hid_device *hid);
 546
 547 int hid_lgff_init(struct hid_device *hid);
 548 int hid_lg2ff_init(struct hid_device *hid);
 549 int hid_plff_init(struct hid_device *hid);
 550 int hid_tmff_init(struct hid_device *hid);
 551 int hid_zpff_init(struct hid_device *hid);
 552 #ifdef CONFIG_HID_PID
 553 int hid_pidff_init(struct hid_device *hid);
 554 #else
 555 static inline int hid_pidff_init(struct hid_device *hid) { return -ENODEV; }
 556 #endif
 557
 558 #else
 559 static inline int hid_ff_init(struct hid_device *hid) { return -1; }
 560 #endif
 561
 562 #ifdef CONFIG_HID_DEBUG
 563 #define dbg_hid(format, arg...) if (hid_debug) \
 564                                 printk(KERN_DEBUG "%s: " format ,\
 565                                 __FILE__ , ## arg)
 566 #define dbg_hid_line(format, arg...) if (hid_debug) \
 567                                 printk(format, ## arg)
 568 #else
 569 static inline int __attribute__((format(printf, 1, 2)))
 570 dbg_hid(const char *fmt, ...)
 571 {
 572         return 0;
 573 }
 574 #define dbg_hid_line dbg_hid
 575 #endif
 576
 577 #define err_hid(format, arg...) printk(KERN_ERR "%s: " format "\n" , \
 578                 __FILE__ , ## arg)
 579 #endif
 580 #endif
 581